From 14d0e347ea2db51144a8800d7c7576db96f69983 Mon Sep 17 00:00:00 2001
From: Zoran Markovic <zoran.markovic@linaro.org>
Date: Wed, 26 Jun 2013 16:09:13 -0700
Subject: rtc: Keep system awake until all expired RTC timers are handled

Current implementation of RTC interface allows for system suspend to
occur in the following cases:
(a) if a timer is set in the past and rtc_timer_do_work() is scheduled
to handle it, and
(b) if rtc_timer_do_work() is called to handle expired timers whose
handlers implement a preemption point.

A pending suspend request may be honoured in the above cases causing
timer handling to be delayed until after the next resume. This is
undesirable since timer handlers may have time-critical code to execute.

This patch makes sure that the system stays awake until all expired
timers are handled.

Note that all calls to pm_stay_awake() are eventually paired with
the single pm_relax() call in rtc_timer_do_work(), which is launched
using schedule_work().

Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Arve Hjonnevag <arve@android.com>
Cc: Todd Poynor <toddpoynor@google.com>
Signed-off-by: Zoran Markovic <zoran.markovic@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 drivers/rtc/interface.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index 72c5cdbe0791..544be722937c 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -72,6 +72,7 @@ int rtc_set_time(struct rtc_device *rtc, struct rtc_time *tm)
 	} else
 		err = -EINVAL;
 
+	pm_stay_awake(rtc->dev.parent);
 	mutex_unlock(&rtc->ops_lock);
 	/* A timer might have just expired */
 	schedule_work(&rtc->irqwork);
@@ -113,6 +114,7 @@ int rtc_set_mmss(struct rtc_device *rtc, unsigned long secs)
 		err = -EINVAL;
 	}
 
+	pm_stay_awake(rtc->dev.parent);
 	mutex_unlock(&rtc->ops_lock);
 	/* A timer might have just expired */
 	schedule_work(&rtc->irqwork);
@@ -771,9 +773,10 @@ static int rtc_timer_enqueue(struct rtc_device *rtc, struct rtc_timer *timer)
 		alarm.time = rtc_ktime_to_tm(timer->node.expires);
 		alarm.enabled = 1;
 		err = __rtc_set_alarm(rtc, &alarm);
-		if (err == -ETIME)
+		if (err == -ETIME) {
+			pm_stay_awake(rtc->dev.parent);
 			schedule_work(&rtc->irqwork);
-		else if (err) {
+		} else if (err) {
 			timerqueue_del(&rtc->timerqueue, &timer->node);
 			timer->enabled = 0;
 			return err;
@@ -818,8 +821,10 @@ static void rtc_timer_remove(struct rtc_device *rtc, struct rtc_timer *timer)
 		alarm.time = rtc_ktime_to_tm(next->expires);
 		alarm.enabled = 1;
 		err = __rtc_set_alarm(rtc, &alarm);
-		if (err == -ETIME)
+		if (err == -ETIME) {
+			pm_stay_awake(rtc->dev.parent);
 			schedule_work(&rtc->irqwork);
+		}
 	}
 }
 
@@ -845,7 +850,6 @@ void rtc_timer_do_work(struct work_struct *work)
 
 	mutex_lock(&rtc->ops_lock);
 again:
-	pm_relax(rtc->dev.parent);
 	__rtc_read_time(rtc, &tm);
 	now = rtc_tm_to_ktime(tm);
 	while ((next = timerqueue_getnext(&rtc->timerqueue))) {
@@ -880,6 +884,7 @@ again:
 	} else
 		rtc_alarm_disable(rtc);
 
+	pm_relax(rtc->dev.parent);
 	mutex_unlock(&rtc->ops_lock);
 }
 
-- 
cgit 


From 397bbf6dee50bb1f07cbdb464c41b0f5b7a85493 Mon Sep 17 00:00:00 2001
From: Prarit Bhargava <prarit@redhat.com>
Date: Fri, 22 Feb 2013 15:08:56 -0500
Subject: clocksource: Fix !CONFIG_CLOCKSOURCE_WATCHDOG compile

If I explicitly disable the clocksource watchdog in the x86 Kconfig,
the x86 kernel will not compile unless this is properly defined.

Cc: John Stultz <john.stultz@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: x86@kernel.org
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 kernel/time/clocksource.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 50a8736757f3..a2e72b8d28d0 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -479,6 +479,7 @@ static inline void clocksource_dequeue_watchdog(struct clocksource *cs) { }
 static inline void clocksource_resume_watchdog(void) { }
 static inline int __clocksource_watchdog_kthread(void) { return 0; }
 static bool clocksource_is_watchdog(struct clocksource *cs) { return false; }
+void clocksource_mark_unstable(struct clocksource *cs) { }
 
 #endif /* CONFIG_CLOCKSOURCE_WATCHDOG */
 
-- 
cgit 


From 2e5aa86609ec1cf37bcc204fd7ba6c24c2f49fec Mon Sep 17 00:00:00 2001
From: Paul Moore <pmoore@redhat.com>
Date: Tue, 23 Jul 2013 17:38:38 -0400
Subject: lsm: split the xfrm_state_alloc_security() hook implementation

The xfrm_state_alloc_security() LSM hook implementation is really a
multiplexed hook with two different behaviors depending on the
arguments passed to it by the caller.  This patch splits the LSM hook
implementation into two new hook implementations, which match the
LSM hooks in the rest of the kernel:

 * xfrm_state_alloc
 * xfrm_state_alloc_acquire

Also included in this patch are the necessary changes to the SELinux
code; no other LSMs are affected.

Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 include/linux/security.h        |  26 ++++--
 security/capability.c           |  15 ++-
 security/security.c             |  13 +--
 security/selinux/hooks.c        |   3 +-
 security/selinux/include/xfrm.h |   4 +-
 security/selinux/xfrm.c         | 199 ++++++++++++++++++----------------------
 6 files changed, 128 insertions(+), 132 deletions(-)

diff --git a/include/linux/security.h b/include/linux/security.h
index 4686491852a7..e5a5e8a41e55 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -1039,17 +1039,25 @@ static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
  * @xfrm_policy_delete_security:
  *	@ctx contains the xfrm_sec_ctx.
  *	Authorize deletion of xp->security.
- * @xfrm_state_alloc_security:
+ * @xfrm_state_alloc:
  *	@x contains the xfrm_state being added to the Security Association
  *	Database by the XFRM system.
  *	@sec_ctx contains the security context information being provided by
  *	the user-level SA generation program (e.g., setkey or racoon).
- *	@secid contains the secid from which to take the mls portion of the context.
  *	Allocate a security structure to the x->security field; the security
  *	field is initialized to NULL when the xfrm_state is allocated. Set the
- *	context to correspond to either sec_ctx or polsec, with the mls portion
- *	taken from secid in the latter case.
- *	Return 0 if operation was successful (memory to allocate, legal context).
+ *	context to correspond to sec_ctx. Return 0 if operation was successful
+ *	(memory to allocate, legal context).
+ * @xfrm_state_alloc_acquire:
+ *	@x contains the xfrm_state being added to the Security Association
+ *	Database by the XFRM system.
+ *	@polsec contains the policy's security context.
+ *	@secid contains the secid from which to take the mls portion of the
+ *	context.
+ *	Allocate a security structure to the x->security field; the security
+ *	field is initialized to NULL when the xfrm_state is allocated. Set the
+ *	context to correspond to secid. Return 0 if operation was successful
+ *	(memory to allocate, legal context).
  * @xfrm_state_free_security:
  *	@x contains the xfrm_state.
  *	Deallocate x->security.
@@ -1651,9 +1659,11 @@ struct security_operations {
 	int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx);
 	void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx);
 	int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx);
-	int (*xfrm_state_alloc_security) (struct xfrm_state *x,
-		struct xfrm_user_sec_ctx *sec_ctx,
-		u32 secid);
+	int (*xfrm_state_alloc) (struct xfrm_state *x,
+				 struct xfrm_user_sec_ctx *sec_ctx);
+	int (*xfrm_state_alloc_acquire) (struct xfrm_state *x,
+					 struct xfrm_sec_ctx *polsec,
+					 u32 secid);
 	void (*xfrm_state_free_security) (struct xfrm_state *x);
 	int (*xfrm_state_delete_security) (struct xfrm_state *x);
 	int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
diff --git a/security/capability.c b/security/capability.c
index 1728d4e375db..67afc679719a 100644
--- a/security/capability.c
+++ b/security/capability.c
@@ -767,9 +767,15 @@ static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
 	return 0;
 }
 
-static int cap_xfrm_state_alloc_security(struct xfrm_state *x,
-					 struct xfrm_user_sec_ctx *sec_ctx,
-					 u32 secid)
+static int cap_xfrm_state_alloc(struct xfrm_state *x,
+				struct xfrm_user_sec_ctx *sec_ctx)
+{
+	return 0;
+}
+
+static int cap_xfrm_state_alloc_acquire(struct xfrm_state *x,
+					struct xfrm_sec_ctx *polsec,
+					u32 secid)
 {
 	return 0;
 }
@@ -1084,7 +1090,8 @@ void __init security_fixup_ops(struct security_operations *ops)
 	set_to_cap_if_null(ops, xfrm_policy_clone_security);
 	set_to_cap_if_null(ops, xfrm_policy_free_security);
 	set_to_cap_if_null(ops, xfrm_policy_delete_security);
-	set_to_cap_if_null(ops, xfrm_state_alloc_security);
+	set_to_cap_if_null(ops, xfrm_state_alloc);
+	set_to_cap_if_null(ops, xfrm_state_alloc_acquire);
 	set_to_cap_if_null(ops, xfrm_state_free_security);
 	set_to_cap_if_null(ops, xfrm_state_delete_security);
 	set_to_cap_if_null(ops, xfrm_policy_lookup);
diff --git a/security/security.c b/security/security.c
index a3dce87d1aef..57e25c962968 100644
--- a/security/security.c
+++ b/security/security.c
@@ -1322,22 +1322,17 @@ int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
 	return security_ops->xfrm_policy_delete_security(ctx);
 }
 
-int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx)
+int security_xfrm_state_alloc(struct xfrm_state *x,
+			      struct xfrm_user_sec_ctx *sec_ctx)
 {
-	return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0);
+	return security_ops->xfrm_state_alloc(x, sec_ctx);
 }
 EXPORT_SYMBOL(security_xfrm_state_alloc);
 
 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
 				      struct xfrm_sec_ctx *polsec, u32 secid)
 {
-	if (!polsec)
-		return 0;
-	/*
-	 * We want the context to be taken from secid which is usually
-	 * from the sock.
-	 */
-	return security_ops->xfrm_state_alloc_security(x, NULL, secid);
+	return security_ops->xfrm_state_alloc_acquire(x, polsec, secid);
 }
 
 int security_xfrm_state_delete(struct xfrm_state *x)
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 5c6f2cd2d095..d3555bdf66af 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -5708,7 +5708,8 @@ static struct security_operations selinux_ops = {
 	.xfrm_policy_clone_security =	selinux_xfrm_policy_clone,
 	.xfrm_policy_free_security =	selinux_xfrm_policy_free,
 	.xfrm_policy_delete_security =	selinux_xfrm_policy_delete,
-	.xfrm_state_alloc_security =	selinux_xfrm_state_alloc,
+	.xfrm_state_alloc =		selinux_xfrm_state_alloc,
+	.xfrm_state_alloc_acquire =	selinux_xfrm_state_alloc_acquire,
 	.xfrm_state_free_security =	selinux_xfrm_state_free,
 	.xfrm_state_delete_security =	selinux_xfrm_state_delete,
 	.xfrm_policy_lookup =		selinux_xfrm_policy_lookup,
diff --git a/security/selinux/include/xfrm.h b/security/selinux/include/xfrm.h
index 65f67cb0aefb..f2a2314aac1a 100644
--- a/security/selinux/include/xfrm.h
+++ b/security/selinux/include/xfrm.h
@@ -16,7 +16,9 @@ int selinux_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
 void selinux_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
 int selinux_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
 int selinux_xfrm_state_alloc(struct xfrm_state *x,
-	struct xfrm_user_sec_ctx *sec_ctx, u32 secid);
+			     struct xfrm_user_sec_ctx *uctx);
+int selinux_xfrm_state_alloc_acquire(struct xfrm_state *x,
+				     struct xfrm_sec_ctx *polsec, u32 secid);
 void selinux_xfrm_state_free(struct xfrm_state *x);
 int selinux_xfrm_state_delete(struct xfrm_state *x);
 int selinux_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
diff --git a/security/selinux/xfrm.c b/security/selinux/xfrm.c
index d03081886214..07ae0c06dfc3 100644
--- a/security/selinux/xfrm.c
+++ b/security/selinux/xfrm.c
@@ -73,6 +73,54 @@ static inline int selinux_authorizable_xfrm(struct xfrm_state *x)
 	return selinux_authorizable_ctx(x->security);
 }
 
+/*
+ * Allocates a xfrm_sec_state and populates it using the supplied security
+ * xfrm_user_sec_ctx context.
+ */
+static int selinux_xfrm_alloc_user(struct xfrm_sec_ctx **ctxp,
+				   struct xfrm_user_sec_ctx *uctx)
+{
+	int rc;
+	const struct task_security_struct *tsec = current_security();
+	struct xfrm_sec_ctx *ctx = NULL;
+	u32 str_len;
+
+	if (ctxp == NULL || uctx == NULL ||
+	    uctx->ctx_doi != XFRM_SC_DOI_LSM ||
+	    uctx->ctx_alg != XFRM_SC_ALG_SELINUX)
+		return -EINVAL;
+
+	str_len = uctx->ctx_len;
+	if (str_len >= PAGE_SIZE)
+		return -ENOMEM;
+
+	ctx = kmalloc(sizeof(*ctx) + str_len + 1, GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	ctx->ctx_doi = XFRM_SC_DOI_LSM;
+	ctx->ctx_alg = XFRM_SC_ALG_SELINUX;
+	ctx->ctx_len = str_len;
+	memcpy(ctx->ctx_str, &uctx[1], str_len);
+	ctx->ctx_str[str_len] = '\0';
+	rc = security_context_to_sid(ctx->ctx_str, str_len, &ctx->ctx_sid);
+	if (rc)
+		goto err;
+
+	rc = avc_has_perm(tsec->sid, ctx->ctx_sid,
+			  SECCLASS_ASSOCIATION, ASSOCIATION__SETCONTEXT, NULL);
+	if (rc)
+		goto err;
+
+	*ctxp = ctx;
+	atomic_inc(&selinux_xfrm_refcount);
+	return 0;
+
+err:
+	kfree(ctx);
+	return rc;
+}
+
 /*
  * LSM hook implementation that authorizes that a flow can use
  * a xfrm policy rule.
@@ -190,96 +238,6 @@ int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall)
 	return 0;
 }
 
-/*
- * Security blob allocation for xfrm_policy and xfrm_state
- * CTX does not have a meaningful value on input
- */
-static int selinux_xfrm_sec_ctx_alloc(struct xfrm_sec_ctx **ctxp,
-	struct xfrm_user_sec_ctx *uctx, u32 sid)
-{
-	int rc = 0;
-	const struct task_security_struct *tsec = current_security();
-	struct xfrm_sec_ctx *ctx = NULL;
-	char *ctx_str = NULL;
-	u32 str_len;
-
-	BUG_ON(uctx && sid);
-
-	if (!uctx)
-		goto not_from_user;
-
-	if (uctx->ctx_alg != XFRM_SC_ALG_SELINUX)
-		return -EINVAL;
-
-	str_len = uctx->ctx_len;
-	if (str_len >= PAGE_SIZE)
-		return -ENOMEM;
-
-	*ctxp = ctx = kmalloc(sizeof(*ctx) +
-			      str_len + 1,
-			      GFP_KERNEL);
-
-	if (!ctx)
-		return -ENOMEM;
-
-	ctx->ctx_doi = uctx->ctx_doi;
-	ctx->ctx_len = str_len;
-	ctx->ctx_alg = uctx->ctx_alg;
-
-	memcpy(ctx->ctx_str,
-	       uctx+1,
-	       str_len);
-	ctx->ctx_str[str_len] = 0;
-	rc = security_context_to_sid(ctx->ctx_str,
-				     str_len,
-				     &ctx->ctx_sid);
-
-	if (rc)
-		goto out;
-
-	/*
-	 * Does the subject have permission to set security context?
-	 */
-	rc = avc_has_perm(tsec->sid, ctx->ctx_sid,
-			  SECCLASS_ASSOCIATION,
-			  ASSOCIATION__SETCONTEXT, NULL);
-	if (rc)
-		goto out;
-
-	return rc;
-
-not_from_user:
-	rc = security_sid_to_context(sid, &ctx_str, &str_len);
-	if (rc)
-		goto out;
-
-	*ctxp = ctx = kmalloc(sizeof(*ctx) +
-			      str_len,
-			      GFP_ATOMIC);
-
-	if (!ctx) {
-		rc = -ENOMEM;
-		goto out;
-	}
-
-	ctx->ctx_doi = XFRM_SC_DOI_LSM;
-	ctx->ctx_alg = XFRM_SC_ALG_SELINUX;
-	ctx->ctx_sid = sid;
-	ctx->ctx_len = str_len;
-	memcpy(ctx->ctx_str,
-	       ctx_str,
-	       str_len);
-
-	goto out2;
-
-out:
-	*ctxp = NULL;
-	kfree(ctx);
-out2:
-	kfree(ctx_str);
-	return rc;
-}
-
 /*
  * LSM hook implementation that allocs and transfers uctx spec to
  * xfrm_policy.
@@ -287,15 +245,7 @@ out2:
 int selinux_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
 			      struct xfrm_user_sec_ctx *uctx)
 {
-	int err;
-
-	BUG_ON(!uctx);
-
-	err = selinux_xfrm_sec_ctx_alloc(ctxp, uctx, 0);
-	if (err == 0)
-		atomic_inc(&selinux_xfrm_refcount);
-
-	return err;
+	return selinux_xfrm_alloc_user(ctxp, uctx);
 }
 
 
@@ -347,20 +297,51 @@ int selinux_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
 }
 
 /*
- * LSM hook implementation that allocs and transfers sec_ctx spec to
- * xfrm_state.
+ * LSM hook implementation that allocates a xfrm_sec_state, populates it using
+ * the supplied security context, and assigns it to the xfrm_state.
+ */
+int selinux_xfrm_state_alloc(struct xfrm_state *x,
+			     struct xfrm_user_sec_ctx *uctx)
+{
+	return selinux_xfrm_alloc_user(&x->security, uctx);
+}
+
+/*
+ * LSM hook implementation that allocates a xfrm_sec_state and populates based
+ * on a secid.
  */
-int selinux_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *uctx,
-		u32 secid)
+int selinux_xfrm_state_alloc_acquire(struct xfrm_state *x,
+				     struct xfrm_sec_ctx *polsec, u32 secid)
 {
-	int err;
+	int rc;
+	struct xfrm_sec_ctx *ctx;
+	char *ctx_str = NULL;
+	int str_len;
 
-	BUG_ON(!x);
+	if (!polsec)
+		return 0;
 
-	err = selinux_xfrm_sec_ctx_alloc(&x->security, uctx, secid);
-	if (err == 0)
-		atomic_inc(&selinux_xfrm_refcount);
-	return err;
+	if (secid == 0)
+		return -EINVAL;
+
+	rc = security_sid_to_context(secid, &ctx_str, &str_len);
+	if (rc)
+		return rc;
+
+	ctx = kmalloc(sizeof(*ctx) + str_len, GFP_ATOMIC);
+	if (!ctx)
+		return -ENOMEM;
+
+	ctx->ctx_doi = XFRM_SC_DOI_LSM;
+	ctx->ctx_alg = XFRM_SC_ALG_SELINUX;
+	ctx->ctx_sid = secid;
+	ctx->ctx_len = str_len;
+	memcpy(ctx->ctx_str, ctx_str, str_len);
+	kfree(ctx_str);
+
+	x->security = ctx;
+	atomic_inc(&selinux_xfrm_refcount);
+	return 0;
 }
 
 /*
-- 
cgit 


From ccf17cc4b81537c29f0d5950b38b5548b6cb5858 Mon Sep 17 00:00:00 2001
From: Paul Moore <pmoore@redhat.com>
Date: Tue, 23 Jul 2013 17:38:39 -0400
Subject: selinux: cleanup and consolidate the XFRM alloc/clone/delete/free
 code

The SELinux labeled IPsec code state management functions have been
long neglected and could use some cleanup and consolidation.

Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/xfrm.c | 71 ++++++++++++++++++++++++++++---------------------
 1 file changed, 40 insertions(+), 31 deletions(-)

diff --git a/security/selinux/xfrm.c b/security/selinux/xfrm.c
index 07ae0c06dfc3..f8d71262b45d 100644
--- a/security/selinux/xfrm.c
+++ b/security/selinux/xfrm.c
@@ -121,6 +121,33 @@ err:
 	return rc;
 }
 
+/*
+ * Free the xfrm_sec_ctx structure.
+ */
+static void selinux_xfrm_free(struct xfrm_sec_ctx *ctx)
+{
+	if (!ctx)
+		return;
+
+	atomic_dec(&selinux_xfrm_refcount);
+	kfree(ctx);
+}
+
+/*
+ * Authorize the deletion of a labeled SA or policy rule.
+ */
+static int selinux_xfrm_delete(struct xfrm_sec_ctx *ctx)
+{
+	const struct task_security_struct *tsec = current_security();
+
+	if (!ctx)
+		return 0;
+
+	return avc_has_perm(tsec->sid, ctx->ctx_sid,
+			    SECCLASS_ASSOCIATION, ASSOCIATION__SETCONTEXT,
+			    NULL);
+}
+
 /*
  * LSM hook implementation that authorizes that a flow can use
  * a xfrm policy rule.
@@ -258,17 +285,16 @@ int selinux_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
 {
 	struct xfrm_sec_ctx *new_ctx;
 
-	if (old_ctx) {
-		new_ctx = kmalloc(sizeof(*old_ctx) + old_ctx->ctx_len,
-				  GFP_ATOMIC);
-		if (!new_ctx)
-			return -ENOMEM;
+	if (!old_ctx)
+		return 0;
+
+	new_ctx = kmalloc(sizeof(*old_ctx) + old_ctx->ctx_len, GFP_ATOMIC);
+	if (!new_ctx)
+		return -ENOMEM;
+	memcpy(new_ctx, old_ctx, sizeof(*old_ctx) + old_ctx->ctx_len);
+	atomic_inc(&selinux_xfrm_refcount);
+	*new_ctxp = new_ctx;
 
-		memcpy(new_ctx, old_ctx, sizeof(*new_ctx));
-		memcpy(new_ctx->ctx_str, old_ctx->ctx_str, new_ctx->ctx_len);
-		atomic_inc(&selinux_xfrm_refcount);
-		*new_ctxp = new_ctx;
-	}
 	return 0;
 }
 
@@ -277,8 +303,7 @@ int selinux_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
  */
 void selinux_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
 {
-	atomic_dec(&selinux_xfrm_refcount);
-	kfree(ctx);
+	selinux_xfrm_free(ctx);
 }
 
 /*
@@ -286,14 +311,7 @@ void selinux_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
  */
 int selinux_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
 {
-	const struct task_security_struct *tsec = current_security();
-
-	if (!ctx)
-		return 0;
-
-	return avc_has_perm(tsec->sid, ctx->ctx_sid,
-			    SECCLASS_ASSOCIATION, ASSOCIATION__SETCONTEXT,
-			    NULL);
+	return selinux_xfrm_delete(ctx);
 }
 
 /*
@@ -349,8 +367,7 @@ int selinux_xfrm_state_alloc_acquire(struct xfrm_state *x,
  */
 void selinux_xfrm_state_free(struct xfrm_state *x)
 {
-	atomic_dec(&selinux_xfrm_refcount);
-	kfree(x->security);
+	selinux_xfrm_free(x->security);
 }
 
  /*
@@ -358,15 +375,7 @@ void selinux_xfrm_state_free(struct xfrm_state *x)
   */
 int selinux_xfrm_state_delete(struct xfrm_state *x)
 {
-	const struct task_security_struct *tsec = current_security();
-	struct xfrm_sec_ctx *ctx = x->security;
-
-	if (!ctx)
-		return 0;
-
-	return avc_has_perm(tsec->sid, ctx->ctx_sid,
-			    SECCLASS_ASSOCIATION, ASSOCIATION__SETCONTEXT,
-			    NULL);
+	return selinux_xfrm_delete(x->security);
 }
 
 /*
-- 
cgit 


From 96484348ad712aed2c6ad7229b848bc1bf6165a8 Mon Sep 17 00:00:00 2001
From: Paul Moore <pmoore@redhat.com>
Date: Tue, 23 Jul 2013 17:38:39 -0400
Subject: selinux: cleanup selinux_xfrm_policy_lookup() and
 selinux_xfrm_state_pol_flow_match()

Do some basic simplification and comment reformatting.

Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/xfrm.c | 54 +++++++++++++++++--------------------------------
 1 file changed, 18 insertions(+), 36 deletions(-)

diff --git a/security/selinux/xfrm.c b/security/selinux/xfrm.c
index f8d71262b45d..4a7ba4ac487e 100644
--- a/security/selinux/xfrm.c
+++ b/security/selinux/xfrm.c
@@ -155,42 +155,30 @@ static int selinux_xfrm_delete(struct xfrm_sec_ctx *ctx)
 int selinux_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
 {
 	int rc;
-	u32 sel_sid;
 
-	/* Context sid is either set to label or ANY_ASSOC */
-	if (ctx) {
-		if (!selinux_authorizable_ctx(ctx))
-			return -EINVAL;
-
-		sel_sid = ctx->ctx_sid;
-	} else
-		/*
-		 * All flows should be treated as polmatch'ing an
-		 * otherwise applicable "non-labeled" policy. This
-		 * would prevent inadvertent "leaks".
-		 */
+	/* All flows should be treated as polmatch'ing an otherwise applicable
+	 * "non-labeled" policy. This would prevent inadvertent "leaks". */
+	if (!ctx)
 		return 0;
 
-	rc = avc_has_perm(fl_secid, sel_sid, SECCLASS_ASSOCIATION,
-			  ASSOCIATION__POLMATCH,
-			  NULL);
-
-	if (rc == -EACCES)
-		return -ESRCH;
+	/* Context sid is either set to label or ANY_ASSOC */
+	if (!selinux_authorizable_ctx(ctx))
+		return -EINVAL;
 
-	return rc;
+	rc = avc_has_perm(fl_secid, ctx->ctx_sid,
+			  SECCLASS_ASSOCIATION, ASSOCIATION__POLMATCH, NULL);
+	return (rc == -EACCES ? -ESRCH : rc);
 }
 
 /*
  * LSM hook implementation that authorizes that a state matches
  * the given policy, flow combo.
  */
-
-int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x, struct xfrm_policy *xp,
-			const struct flowi *fl)
+int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x,
+				      struct xfrm_policy *xp,
+				      const struct flowi *fl)
 {
 	u32 state_sid;
-	int rc;
 
 	if (!xp->security)
 		if (x->security)
@@ -213,18 +201,12 @@ int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x, struct xfrm_policy *
 	if (fl->flowi_secid != state_sid)
 		return 0;
 
-	rc = avc_has_perm(fl->flowi_secid, state_sid, SECCLASS_ASSOCIATION,
-			  ASSOCIATION__SENDTO,
-			  NULL)? 0:1;
-
-	/*
-	 * We don't need a separate SA Vs. policy polmatch check
-	 * since the SA is now of the same label as the flow and
-	 * a flow Vs. policy polmatch check had already happened
-	 * in selinux_xfrm_policy_lookup() above.
-	 */
-
-	return rc;
+	/* We don't need a separate SA Vs. policy polmatch check since the SA
+	 * is now of the same label as the flow and a flow Vs. policy polmatch
+	 * check had already happened in selinux_xfrm_policy_lookup() above. */
+	return (avc_has_perm(fl->flowi_secid, state_sid,
+			    SECCLASS_ASSOCIATION, ASSOCIATION__SENDTO,
+			    NULL) ? 0 : 1);
 }
 
 /*
-- 
cgit 


From eef9b41622f2f09e824fb4e7356b42bddada6623 Mon Sep 17 00:00:00 2001
From: Paul Moore <pmoore@redhat.com>
Date: Tue, 23 Jul 2013 17:38:39 -0400
Subject: selinux: cleanup selinux_xfrm_sock_rcv_skb() and
 selinux_xfrm_postroute_last()

Some basic simplification and comment reformatting.

Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/include/xfrm.h | 17 +++++----
 security/selinux/xfrm.c         | 85 ++++++++++++++++-------------------------
 2 files changed, 42 insertions(+), 60 deletions(-)

diff --git a/security/selinux/include/xfrm.h b/security/selinux/include/xfrm.h
index f2a2314aac1a..b463f210f1af 100644
--- a/security/selinux/include/xfrm.h
+++ b/security/selinux/include/xfrm.h
@@ -44,10 +44,10 @@ static inline int selinux_xfrm_enabled(void)
 	return (atomic_read(&selinux_xfrm_refcount) > 0);
 }
 
-int selinux_xfrm_sock_rcv_skb(u32 sid, struct sk_buff *skb,
-			struct common_audit_data *ad);
-int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb,
-			struct common_audit_data *ad, u8 proto);
+int selinux_xfrm_sock_rcv_skb(u32 sk_sid, struct sk_buff *skb,
+			      struct common_audit_data *ad);
+int selinux_xfrm_postroute_last(u32 sk_sid, struct sk_buff *skb,
+				struct common_audit_data *ad, u8 proto);
 int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall);
 
 static inline void selinux_xfrm_notify_policyload(void)
@@ -61,14 +61,15 @@ static inline int selinux_xfrm_enabled(void)
 	return 0;
 }
 
-static inline int selinux_xfrm_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb,
-			struct common_audit_data *ad)
+static inline int selinux_xfrm_sock_rcv_skb(u32 sk_sid, struct sk_buff *skb,
+					    struct common_audit_data *ad)
 {
 	return 0;
 }
 
-static inline int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb,
-			struct common_audit_data *ad, u8 proto)
+static inline int selinux_xfrm_postroute_last(u32 sk_sid, struct sk_buff *skb,
+					      struct common_audit_data *ad,
+					      u8 proto)
 {
 	return 0;
 }
diff --git a/security/selinux/xfrm.c b/security/selinux/xfrm.c
index 4a7ba4ac487e..1f6c6e619e98 100644
--- a/security/selinux/xfrm.c
+++ b/security/selinux/xfrm.c
@@ -367,14 +367,12 @@ int selinux_xfrm_state_delete(struct xfrm_state *x)
  * we need to check for unlabelled access since this may not have
  * gone thru the IPSec process.
  */
-int selinux_xfrm_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb,
-				struct common_audit_data *ad)
+int selinux_xfrm_sock_rcv_skb(u32 sk_sid, struct sk_buff *skb,
+			      struct common_audit_data *ad)
 {
-	int i, rc = 0;
-	struct sec_path *sp;
-	u32 sel_sid = SECINITSID_UNLABELED;
-
-	sp = skb->sp;
+	int i;
+	struct sec_path *sp = skb->sp;
+	u32 peer_sid = SECINITSID_UNLABELED;
 
 	if (sp) {
 		for (i = 0; i < sp->len; i++) {
@@ -382,23 +380,17 @@ int selinux_xfrm_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb,
 
 			if (x && selinux_authorizable_xfrm(x)) {
 				struct xfrm_sec_ctx *ctx = x->security;
-				sel_sid = ctx->ctx_sid;
+				peer_sid = ctx->ctx_sid;
 				break;
 			}
 		}
 	}
 
-	/*
-	 * This check even when there's no association involved is
-	 * intended, according to Trent Jaeger, to make sure a
-	 * process can't engage in non-ipsec communication unless
-	 * explicitly allowed by policy.
-	 */
-
-	rc = avc_has_perm(isec_sid, sel_sid, SECCLASS_ASSOCIATION,
-			  ASSOCIATION__RECVFROM, ad);
-
-	return rc;
+	/* This check even when there's no association involved is intended,
+	 * according to Trent Jaeger, to make sure a process can't engage in
+	 * non-IPsec communication unless explicitly allowed by policy. */
+	return avc_has_perm(sk_sid, peer_sid,
+			    SECCLASS_ASSOCIATION, ASSOCIATION__RECVFROM, ad);
 }
 
 /*
@@ -408,49 +400,38 @@ int selinux_xfrm_sock_rcv_skb(u32 isec_sid, struct sk_buff *skb,
  * If we do have a authorizable security association, then it has already been
  * checked in the selinux_xfrm_state_pol_flow_match hook above.
  */
-int selinux_xfrm_postroute_last(u32 isec_sid, struct sk_buff *skb,
-					struct common_audit_data *ad, u8 proto)
+int selinux_xfrm_postroute_last(u32 sk_sid, struct sk_buff *skb,
+				struct common_audit_data *ad, u8 proto)
 {
 	struct dst_entry *dst;
-	int rc = 0;
-
-	dst = skb_dst(skb);
-
-	if (dst) {
-		struct dst_entry *dst_test;
-
-		for (dst_test = dst; dst_test != NULL;
-		     dst_test = dst_test->child) {
-			struct xfrm_state *x = dst_test->xfrm;
-
-			if (x && selinux_authorizable_xfrm(x))
-				goto out;
-		}
-	}
 
 	switch (proto) {
 	case IPPROTO_AH:
 	case IPPROTO_ESP:
 	case IPPROTO_COMP:
-		/*
-		 * We should have already seen this packet once before
-		 * it underwent xfrm(s). No need to subject it to the
-		 * unlabeled check.
-		 */
-		goto out;
+		/* We should have already seen this packet once before it
+		 * underwent xfrm(s). No need to subject it to the unlabeled
+		 * check. */
+		return 0;
 	default:
 		break;
 	}
 
-	/*
-	 * This check even when there's no association involved is
-	 * intended, according to Trent Jaeger, to make sure a
-	 * process can't engage in non-ipsec communication unless
-	 * explicitly allowed by policy.
-	 */
+	dst = skb_dst(skb);
+	if (dst) {
+		struct dst_entry *iter;
 
-	rc = avc_has_perm(isec_sid, SECINITSID_UNLABELED, SECCLASS_ASSOCIATION,
-			  ASSOCIATION__SENDTO, ad);
-out:
-	return rc;
+		for (iter = dst; iter != NULL; iter = iter->child) {
+			struct xfrm_state *x = iter->xfrm;
+
+			if (x && selinux_authorizable_xfrm(x))
+				return 0;
+		}
+	}
+
+	/* This check even when there's no association involved is intended,
+	 * according to Trent Jaeger, to make sure a process can't engage in
+	 * non-IPsec communication unless explicitly allowed by policy. */
+	return avc_has_perm(sk_sid, SECINITSID_UNLABELED,
+			    SECCLASS_ASSOCIATION, ASSOCIATION__SENDTO, ad);
 }
-- 
cgit 


From 4baabeec2a061fe771f9fcc01c61204a2ee2f608 Mon Sep 17 00:00:00 2001
From: Paul Moore <pmoore@redhat.com>
Date: Tue, 23 Jul 2013 17:38:39 -0400
Subject: selinux: cleanup some comment and whitespace issues in the XFRM code

Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/xfrm.c | 23 ++++++++++-------------
 1 file changed, 10 insertions(+), 13 deletions(-)

diff --git a/security/selinux/xfrm.c b/security/selinux/xfrm.c
index 1f6c6e619e98..00801cef1dd9 100644
--- a/security/selinux/xfrm.c
+++ b/security/selinux/xfrm.c
@@ -56,7 +56,7 @@
 atomic_t selinux_xfrm_refcount = ATOMIC_INIT(0);
 
 /*
- * Returns true if an LSM/SELinux context
+ * Returns true if the context is an LSM/SELinux context.
  */
 static inline int selinux_authorizable_ctx(struct xfrm_sec_ctx *ctx)
 {
@@ -66,7 +66,7 @@ static inline int selinux_authorizable_ctx(struct xfrm_sec_ctx *ctx)
 }
 
 /*
- * Returns true if the xfrm contains a security blob for SELinux
+ * Returns true if the xfrm contains a security blob for SELinux.
  */
 static inline int selinux_authorizable_xfrm(struct xfrm_state *x)
 {
@@ -149,8 +149,8 @@ static int selinux_xfrm_delete(struct xfrm_sec_ctx *ctx)
 }
 
 /*
- * LSM hook implementation that authorizes that a flow can use
- * a xfrm policy rule.
+ * LSM hook implementation that authorizes that a flow can use a xfrm policy
+ * rule.
  */
 int selinux_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
 {
@@ -213,7 +213,6 @@ int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x,
  * LSM hook implementation that checks and/or returns the xfrm sid for the
  * incoming packet.
  */
-
 int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall)
 {
 	struct sec_path *sp;
@@ -248,8 +247,7 @@ int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall)
 }
 
 /*
- * LSM hook implementation that allocs and transfers uctx spec to
- * xfrm_policy.
+ * LSM hook implementation that allocs and transfers uctx spec to xfrm_policy.
  */
 int selinux_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
 			      struct xfrm_user_sec_ctx *uctx)
@@ -257,10 +255,9 @@ int selinux_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
 	return selinux_xfrm_alloc_user(ctxp, uctx);
 }
 
-
 /*
- * LSM hook implementation that copies security data structure from old to
- * new for policy cloning.
+ * LSM hook implementation that copies security data structure from old to new
+ * for policy cloning.
  */
 int selinux_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
 			      struct xfrm_sec_ctx **new_ctxp)
@@ -352,9 +349,9 @@ void selinux_xfrm_state_free(struct xfrm_state *x)
 	selinux_xfrm_free(x->security);
 }
 
- /*
-  * LSM hook implementation that authorizes deletion of labeled SAs.
-  */
+/*
+ * LSM hook implementation that authorizes deletion of labeled SAs.
+ */
 int selinux_xfrm_state_delete(struct xfrm_state *x)
 {
 	return selinux_xfrm_delete(x->security);
-- 
cgit 


From e21936958000a4f2298193b3875b707fbcbc8f7b Mon Sep 17 00:00:00 2001
From: Paul Moore <pmoore@redhat.com>
Date: Tue, 23 Jul 2013 17:38:40 -0400
Subject: selinux: cleanup selinux_xfrm_decode_session()

Some basic simplification.

Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/xfrm.c | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/security/selinux/xfrm.c b/security/selinux/xfrm.c
index 00801cef1dd9..425b9f91d755 100644
--- a/security/selinux/xfrm.c
+++ b/security/selinux/xfrm.c
@@ -215,34 +215,35 @@ int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x,
  */
 int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall)
 {
+	u32 sid_session = SECSID_NULL;
 	struct sec_path *sp;
 
-	*sid = SECSID_NULL;
-
 	if (skb == NULL)
-		return 0;
+		goto out;
 
 	sp = skb->sp;
 	if (sp) {
-		int i, sid_set = 0;
+		int i;
 
-		for (i = sp->len-1; i >= 0; i--) {
+		for (i = sp->len - 1; i >= 0; i--) {
 			struct xfrm_state *x = sp->xvec[i];
 			if (selinux_authorizable_xfrm(x)) {
 				struct xfrm_sec_ctx *ctx = x->security;
 
-				if (!sid_set) {
-					*sid = ctx->ctx_sid;
-					sid_set = 1;
-
+				if (sid_session == SECSID_NULL) {
+					sid_session = ctx->ctx_sid;
 					if (!ckall)
-						break;
-				} else if (*sid != ctx->ctx_sid)
+						goto out;
+				} else if (sid_session != ctx->ctx_sid) {
+					*sid = SECSID_NULL;
 					return -EINVAL;
+				}
 			}
 		}
 	}
 
+out:
+	*sid = sid_session;
 	return 0;
 }
 
-- 
cgit 


From d1b17b09f390369271ecfbc7e4a4d0d0dcff1b1b Mon Sep 17 00:00:00 2001
From: Paul Moore <pmoore@redhat.com>
Date: Tue, 23 Jul 2013 17:38:40 -0400
Subject: selinux: cleanup the XFRM header

Remove the unused get_sock_isec() function and do some formatting
fixes.

Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/include/xfrm.h | 19 +++++--------------
 1 file changed, 5 insertions(+), 14 deletions(-)

diff --git a/security/selinux/include/xfrm.h b/security/selinux/include/xfrm.h
index b463f210f1af..60774bcf61b3 100644
--- a/security/selinux/include/xfrm.h
+++ b/security/selinux/include/xfrm.h
@@ -10,7 +10,7 @@
 #include <net/flow.h>
 
 int selinux_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
-			      struct xfrm_user_sec_ctx *sec_ctx);
+			      struct xfrm_user_sec_ctx *uctx);
 int selinux_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
 			      struct xfrm_sec_ctx **new_ctxp);
 void selinux_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
@@ -23,18 +23,8 @@ void selinux_xfrm_state_free(struct xfrm_state *x);
 int selinux_xfrm_state_delete(struct xfrm_state *x);
 int selinux_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
 int selinux_xfrm_state_pol_flow_match(struct xfrm_state *x,
-			struct xfrm_policy *xp, const struct flowi *fl);
-
-/*
- * Extract the security blob from the sock (it's actually on the socket)
- */
-static inline struct inode_security_struct *get_sock_isec(struct sock *sk)
-{
-	if (!sk->sk_socket)
-		return NULL;
-
-	return SOCK_INODE(sk->sk_socket)->i_security;
-}
+				      struct xfrm_policy *xp,
+				      const struct flowi *fl);
 
 #ifdef CONFIG_SECURITY_NETWORK_XFRM
 extern atomic_t selinux_xfrm_refcount;
@@ -74,7 +64,8 @@ static inline int selinux_xfrm_postroute_last(u32 sk_sid, struct sk_buff *skb,
 	return 0;
 }
 
-static inline int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid, int ckall)
+static inline int selinux_xfrm_decode_session(struct sk_buff *skb, u32 *sid,
+					      int ckall)
 {
 	*sid = SECSID_NULL;
 	return 0;
-- 
cgit 


From bed4d7efb31fd81b3a3c83dc8540197cd0fe81c0 Mon Sep 17 00:00:00 2001
From: Paul Moore <pmoore@redhat.com>
Date: Tue, 23 Jul 2013 17:38:40 -0400
Subject: selinux: remove the BUG_ON() from selinux_skb_xfrm_sid()

Remove the BUG_ON() from selinux_skb_xfrm_sid() and propogate the
error code up to the caller.  Also check the return values in the
only caller function, selinux_skb_peerlbl_sid().

Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/hooks.c        | 8 ++++++--
 security/selinux/include/xfrm.h | 5 ++---
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index d3555bdf66af..4bc068b3773d 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -3722,8 +3722,12 @@ static int selinux_skb_peerlbl_sid(struct sk_buff *skb, u16 family, u32 *sid)
 	u32 nlbl_sid;
 	u32 nlbl_type;
 
-	selinux_skb_xfrm_sid(skb, &xfrm_sid);
-	selinux_netlbl_skbuff_getsid(skb, family, &nlbl_type, &nlbl_sid);
+	err = selinux_skb_xfrm_sid(skb, &xfrm_sid);
+	if (unlikely(err))
+		return -EACCES;
+	err = selinux_netlbl_skbuff_getsid(skb, family, &nlbl_type, &nlbl_sid);
+	if (unlikely(err))
+		return -EACCES;
 
 	err = security_net_peersid_resolve(nlbl_sid, nlbl_type, xfrm_sid, sid);
 	if (unlikely(err)) {
diff --git a/security/selinux/include/xfrm.h b/security/selinux/include/xfrm.h
index 60774bcf61b3..7605251936f5 100644
--- a/security/selinux/include/xfrm.h
+++ b/security/selinux/include/xfrm.h
@@ -76,10 +76,9 @@ static inline void selinux_xfrm_notify_policyload(void)
 }
 #endif
 
-static inline void selinux_skb_xfrm_sid(struct sk_buff *skb, u32 *sid)
+static inline int selinux_skb_xfrm_sid(struct sk_buff *skb, u32 *sid)
 {
-	int err = selinux_xfrm_decode_session(skb, sid, 0);
-	BUG_ON(err);
+	return selinux_xfrm_decode_session(skb, sid, 0);
 }
 
 #endif /* _SELINUX_XFRM_H_ */
-- 
cgit 


From fee7114298cf54bbd221cdb2ab49738be8b94f4c Mon Sep 17 00:00:00 2001
From: Waiman Long <Waiman.Long@hp.com>
Date: Tue, 23 Jul 2013 17:38:41 -0400
Subject: SELinux: Reduce overhead of mls_level_isvalid() function call

While running the high_systime workload of the AIM7 benchmark on
a 2-socket 12-core Westmere x86-64 machine running 3.10-rc4 kernel
(with HT on), it was found that a pretty sizable amount of time was
spent in the SELinux code. Below was the perf trace of the "perf
record -a -s" of a test run at 1500 users:

  5.04%            ls  [kernel.kallsyms]     [k] ebitmap_get_bit
  1.96%            ls  [kernel.kallsyms]     [k] mls_level_isvalid
  1.95%            ls  [kernel.kallsyms]     [k] find_next_bit

The ebitmap_get_bit() was the hottest function in the perf-report
output.  Both the ebitmap_get_bit() and find_next_bit() functions
were, in fact, called by mls_level_isvalid(). As a result, the
mls_level_isvalid() call consumed 8.95% of the total CPU time of
all the 24 virtual CPUs which is quite a lot. The majority of the
mls_level_isvalid() function invocations come from the socket creation
system call.

Looking at the mls_level_isvalid() function, it is checking to see
if all the bits set in one of the ebitmap structure are also set in
another one as well as the highest set bit is no bigger than the one
specified by the given policydb data structure. It is doing it in
a bit-by-bit manner. So if the ebitmap structure has many bits set,
the iteration loop will be done many times.

The current code can be rewritten to use a similar algorithm as the
ebitmap_contains() function with an additional check for the
highest set bit. The ebitmap_contains() function was extended to
cover an optional additional check for the highest set bit, and the
mls_level_isvalid() function was modified to call ebitmap_contains().

With that change, the perf trace showed that the used CPU time drop
down to just 0.08% (ebitmap_contains + mls_level_isvalid) of the
total which is about 100X less than before.

  0.07%            ls  [kernel.kallsyms]     [k] ebitmap_contains
  0.05%            ls  [kernel.kallsyms]     [k] ebitmap_get_bit
  0.01%            ls  [kernel.kallsyms]     [k] mls_level_isvalid
  0.01%            ls  [kernel.kallsyms]     [k] find_next_bit

The remaining ebitmap_get_bit() and find_next_bit() functions calls
are made by other kernel routines as the new mls_level_isvalid()
function will not call them anymore.

This patch also improves the high_systime AIM7 benchmark result,
though the improvement is not as impressive as is suggested by the
reduction in CPU time spent in the ebitmap functions. The table below
shows the performance change on the 2-socket x86-64 system (with HT
on) mentioned above.

+--------------+---------------+----------------+-----------------+
|   Workload   | mean % change | mean % change  | mean % change   |
|              | 10-100 users  | 200-1000 users | 1100-2000 users |
+--------------+---------------+----------------+-----------------+
| high_systime |     +0.1%     |     +0.9%      |     +2.6%       |
+--------------+---------------+----------------+-----------------+

Signed-off-by: Waiman Long <Waiman.Long@hp.com>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/ss/ebitmap.c   | 20 ++++++++++++++++++--
 security/selinux/ss/ebitmap.h   |  2 +-
 security/selinux/ss/mls.c       | 22 +++++++---------------
 security/selinux/ss/mls_types.h |  2 +-
 4 files changed, 27 insertions(+), 19 deletions(-)

diff --git a/security/selinux/ss/ebitmap.c b/security/selinux/ss/ebitmap.c
index 30f119b1d1ec..820313a04d49 100644
--- a/security/selinux/ss/ebitmap.c
+++ b/security/selinux/ss/ebitmap.c
@@ -213,7 +213,12 @@ netlbl_import_failure:
 }
 #endif /* CONFIG_NETLABEL */
 
-int ebitmap_contains(struct ebitmap *e1, struct ebitmap *e2)
+/*
+ * Check to see if all the bits set in e2 are also set in e1. Optionally,
+ * if last_e2bit is non-zero, the highest set bit in e2 cannot exceed
+ * last_e2bit.
+ */
+int ebitmap_contains(struct ebitmap *e1, struct ebitmap *e2, u32 last_e2bit)
 {
 	struct ebitmap_node *n1, *n2;
 	int i;
@@ -223,14 +228,25 @@ int ebitmap_contains(struct ebitmap *e1, struct ebitmap *e2)
 
 	n1 = e1->node;
 	n2 = e2->node;
+
 	while (n1 && n2 && (n1->startbit <= n2->startbit)) {
 		if (n1->startbit < n2->startbit) {
 			n1 = n1->next;
 			continue;
 		}
-		for (i = 0; i < EBITMAP_UNIT_NUMS; i++) {
+		for (i = EBITMAP_UNIT_NUMS - 1; (i >= 0) && !n2->maps[i]; )
+			i--;	/* Skip trailing NULL map entries */
+		if (last_e2bit && (i >= 0)) {
+			u32 lastsetbit = n2->startbit + i * EBITMAP_UNIT_SIZE +
+					 __fls(n2->maps[i]);
+			if (lastsetbit > last_e2bit)
+				return 0;
+		}
+
+		while (i >= 0) {
 			if ((n1->maps[i] & n2->maps[i]) != n2->maps[i])
 				return 0;
+			i--;
 		}
 
 		n1 = n1->next;
diff --git a/security/selinux/ss/ebitmap.h b/security/selinux/ss/ebitmap.h
index 922f8afa89dd..e7eb3a9c5ab7 100644
--- a/security/selinux/ss/ebitmap.h
+++ b/security/selinux/ss/ebitmap.h
@@ -117,7 +117,7 @@ static inline void ebitmap_node_clr_bit(struct ebitmap_node *n,
 
 int ebitmap_cmp(struct ebitmap *e1, struct ebitmap *e2);
 int ebitmap_cpy(struct ebitmap *dst, struct ebitmap *src);
-int ebitmap_contains(struct ebitmap *e1, struct ebitmap *e2);
+int ebitmap_contains(struct ebitmap *e1, struct ebitmap *e2, u32 last_e2bit);
 int ebitmap_get_bit(struct ebitmap *e, unsigned long bit);
 int ebitmap_set_bit(struct ebitmap *e, unsigned long bit, int value);
 void ebitmap_destroy(struct ebitmap *e);
diff --git a/security/selinux/ss/mls.c b/security/selinux/ss/mls.c
index 40de8d3f208e..c85bc1ec040c 100644
--- a/security/selinux/ss/mls.c
+++ b/security/selinux/ss/mls.c
@@ -160,8 +160,6 @@ void mls_sid_to_context(struct context *context,
 int mls_level_isvalid(struct policydb *p, struct mls_level *l)
 {
 	struct level_datum *levdatum;
-	struct ebitmap_node *node;
-	int i;
 
 	if (!l->sens || l->sens > p->p_levels.nprim)
 		return 0;
@@ -170,19 +168,13 @@ int mls_level_isvalid(struct policydb *p, struct mls_level *l)
 	if (!levdatum)
 		return 0;
 
-	ebitmap_for_each_positive_bit(&l->cat, node, i) {
-		if (i > p->p_cats.nprim)
-			return 0;
-		if (!ebitmap_get_bit(&levdatum->level->cat, i)) {
-			/*
-			 * Category may not be associated with
-			 * sensitivity.
-			 */
-			return 0;
-		}
-	}
-
-	return 1;
+	/*
+	 * Return 1 iff all the bits set in l->cat are also be set in
+	 * levdatum->level->cat and no bit in l->cat is larger than
+	 * p->p_cats.nprim.
+	 */
+	return ebitmap_contains(&levdatum->level->cat, &l->cat,
+				p->p_cats.nprim);
 }
 
 int mls_range_isvalid(struct policydb *p, struct mls_range *r)
diff --git a/security/selinux/ss/mls_types.h b/security/selinux/ss/mls_types.h
index 03bed52a8052..e93648774137 100644
--- a/security/selinux/ss/mls_types.h
+++ b/security/selinux/ss/mls_types.h
@@ -35,7 +35,7 @@ static inline int mls_level_eq(struct mls_level *l1, struct mls_level *l2)
 static inline int mls_level_dom(struct mls_level *l1, struct mls_level *l2)
 {
 	return ((l1->sens >= l2->sens) &&
-		ebitmap_contains(&l1->cat, &l2->cat));
+		ebitmap_contains(&l1->cat, &l2->cat, 0));
 }
 
 #define mls_level_incomp(l1, l2) \
-- 
cgit 


From a767f680e34bf14a36fefbbb6d85783eef99fd57 Mon Sep 17 00:00:00 2001
From: Waiman Long <Waiman.Long@hp.com>
Date: Tue, 23 Jul 2013 17:38:41 -0400
Subject: SELinux: Increase ebitmap_node size for 64-bit configuration

Currently, the ebitmap_node structure has a fixed size of 32 bytes. On
a 32-bit system, the overhead is 8 bytes, leaving 24 bytes for being
used as bitmaps. The overhead ratio is 1/4.

On a 64-bit system, the overhead is 16 bytes. Therefore, only 16 bytes
are left for bitmap purpose and the overhead ratio is 1/2. With a
3.8.2 kernel, a boot-up operation will cause the ebitmap_get_bit()
function to be called about 9 million times. The average number of
ebitmap_node traversal is about 3.7.

This patch increases the size of the ebitmap_node structure to 64
bytes for 64-bit system to keep the overhead ratio at 1/4. This may
also improve performance a little bit by making node to node traversal
less frequent (< 2) as more bits are available in each node.

Signed-off-by: Waiman Long <Waiman.Long@hp.com>
Acked-by:  Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/ss/ebitmap.h | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/security/selinux/ss/ebitmap.h b/security/selinux/ss/ebitmap.h
index e7eb3a9c5ab7..712c8a7b8e8b 100644
--- a/security/selinux/ss/ebitmap.h
+++ b/security/selinux/ss/ebitmap.h
@@ -16,7 +16,13 @@
 
 #include <net/netlabel.h>
 
-#define EBITMAP_UNIT_NUMS	((32 - sizeof(void *) - sizeof(u32))	\
+#ifdef CONFIG_64BIT
+#define	EBITMAP_NODE_SIZE	64
+#else
+#define	EBITMAP_NODE_SIZE	32
+#endif
+
+#define EBITMAP_UNIT_NUMS	((EBITMAP_NODE_SIZE-sizeof(void *)-sizeof(u32))\
 					/ sizeof(unsigned long))
 #define EBITMAP_UNIT_SIZE	BITS_PER_LONG
 #define EBITMAP_SIZE		(EBITMAP_UNIT_NUMS * EBITMAP_UNIT_SIZE)
-- 
cgit 


From 5c73fceb8c70466c5876ad94c356922ae75a0820 Mon Sep 17 00:00:00 2001
From: Stephen Smalley <sds@tycho.nsa.gov>
Date: Tue, 23 Jul 2013 17:38:41 -0400
Subject: SELinux: Enable setting security contexts on rootfs inodes.

rootfs (ramfs) can support setting of security contexts
by userspace due to the vfs fallback behavior of calling
the security module to set the in-core inode state
for security.* attributes when the filesystem does not
provide an xattr handler.  No xattr handler required
as the inodes are pinned in memory and have no backing
store.

This is useful in allowing early userspace to label individual
files within a rootfs while still providing a policy-defined
default via genfs.

Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/hooks.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 4bc068b3773d..911b780fcf80 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -406,6 +406,13 @@ static int sb_finish_set_opts(struct super_block *sb)
 	if (strncmp(sb->s_type->name, "sysfs", sizeof("sysfs")) == 0)
 		sbsec->flags |= SE_SBLABELSUPP;
 
+	/*
+	 * Special handling for rootfs. Is genfs but supports
+	 * setting SELinux context on in-core inodes.
+	 */
+	if (strncmp(sb->s_type->name, "rootfs", sizeof("rootfs")) == 0)
+		sbsec->flags |= SE_SBLABELSUPP;
+
 	/* Initialize the root inode. */
 	rc = inode_doinit_with_dentry(root_inode, root);
 
-- 
cgit 


From b138004ea0382bdc6d02599c39392651b4f63889 Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Tue, 23 Jul 2013 17:38:42 -0400
Subject: SELinux: fix selinuxfs policy file on big endian systems

The /sys/fs/selinux/policy file is not valid on big endian systems like
ppc64 or s390.  Let's see why:

static int hashtab_cnt(void *key, void *data, void *ptr)
{
	int *cnt = ptr;
	*cnt = *cnt + 1;

	return 0;
}

static int range_write(struct policydb *p, void *fp)
{
	size_t nel;
[...]
	/* count the number of entries in the hashtab */
	nel = 0;
	rc = hashtab_map(p->range_tr, hashtab_cnt, &nel);
	if (rc)
		return rc;
	buf[0] = cpu_to_le32(nel);
	rc = put_entry(buf, sizeof(u32), 1, fp);

So size_t is 64 bits.  But then we pass a pointer to it as we do to
hashtab_cnt.  hashtab_cnt thinks it is a 32 bit int and only deals with
the first 4 bytes.  On x86_64 which is little endian, those first 4
bytes and the least significant, so this works out fine.  On ppc64/s390
those first 4 bytes of memory are the high order bits.  So at the end of
the call to hashtab_map nel has a HUGE number.  But the least
significant 32 bits are all 0's.

We then pass that 64 bit number to cpu_to_le32() which happily truncates
it to a 32 bit number and does endian swapping.  But the low 32 bits are
all 0's.  So no matter how many entries are in the hashtab, big endian
systems always say there are 0 entries because I screwed up the
counting.

The fix is easy.  Use a 32 bit int, as the hashtab_cnt expects, for nel.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Paul Moore <pmoore@redhat.com>
---
 security/selinux/ss/policydb.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index 9cd9b7c661ec..3fc8969b499c 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -3200,9 +3200,8 @@ static int range_write_helper(void *key, void *data, void *ptr)
 
 static int range_write(struct policydb *p, void *fp)
 {
-	size_t nel;
 	__le32 buf[1];
-	int rc;
+	int rc, nel;
 	struct policy_data pd;
 
 	pd.p = p;
-- 
cgit 


From 40d3d0b85fa22084fc3b7eeb943aca365097cea3 Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Fri, 24 Aug 2012 15:58:45 -0400
Subject: SELinux: remove crazy contortions around proc

We check if the fsname is proc and if so set the proc superblock security
struct flag.  We then check if the flag is set and use the string 'proc'
for the fsname instead of just using the fsname.  What's the point?  It's
always proc...  Get rid of the useless conditional.

Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/hooks.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 911b780fcf80..42b538ceb8b4 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -678,7 +678,7 @@ static int selinux_set_mnt_opts(struct super_block *sb,
 		sbsec->flags |= SE_SBPROC;
 
 	/* Determine the labeling behavior to use for this filesystem type. */
-	rc = security_fs_use((sbsec->flags & SE_SBPROC) ? "proc" : sb->s_type->name, &sbsec->behavior, &sbsec->sid);
+	rc = security_fs_use(sb->s_type->name, &sbsec->behavior, &sbsec->sid);
 	if (rc) {
 		printk(KERN_WARNING "%s: security_fs_use(%s) returned %d\n",
 		       __func__, sb->s_type->name, rc);
-- 
cgit 


From d355987f47bbe24e7450b509a3f8aac0db88b65a Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Fri, 24 Aug 2012 15:58:53 -0400
Subject: SELinux: make it harder to get the number of mnt opts wrong

Instead of just hard coding a value, use the enum to out benefit.

Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/hooks.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 42b538ceb8b4..863f20590186 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -94,8 +94,6 @@
 #include "audit.h"
 #include "avc_ss.h"
 
-#define NUM_SEL_MNT_OPTS 5
-
 extern struct security_operations *security_ops;
 
 /* SECMARK reference count */
@@ -307,8 +305,11 @@ enum {
 	Opt_defcontext = 3,
 	Opt_rootcontext = 4,
 	Opt_labelsupport = 5,
+	Opt_nextmntopt = 6,
 };
 
+#define NUM_SEL_MNT_OPTS	(Opt_nextmntopt - 1)
+
 static const match_table_t tokens = {
 	{Opt_context, CONTEXT_STR "%s"},
 	{Opt_fscontext, FSCONTEXT_STR "%s"},
-- 
cgit 


From af8e50cc7d546c508e9091bbbdf3cf8b243bd8cd Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Fri, 24 Aug 2012 15:59:00 -0400
Subject: SELinux: use define for number of bits in the mnt flags mask

We had this random hard coded value of '8' in the code (I put it there)
for the number of bits to check for mount options.  This is stupid.  Instead
use the #define we already have which tells us the number of mount
options.

Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/hooks.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 863f20590186..e13d65a62104 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -466,9 +466,12 @@ static int selinux_get_mnt_opts(const struct super_block *sb,
 	if (!ss_initialized)
 		return -EINVAL;
 
+	/* make sure we always check enough bits to cover the mask */
+	BUILD_BUG_ON(SE_MNTMASK >= (1 << NUM_SEL_MNT_OPTS));
+
 	tmp = sbsec->flags & SE_MNTMASK;
 	/* count the number of mount options for this sb */
-	for (i = 0; i < 8; i++) {
+	for (i = 0; i < NUM_SEL_MNT_OPTS; i++) {
 		if (tmp & 0x01)
 			opts->num_mnt_opts++;
 		tmp >>= 1;
-- 
cgit 


From 12f348b9dcf6d9616c86a049c3c8700f9dc0af55 Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Tue, 9 Oct 2012 10:56:25 -0400
Subject: SELinux: rename SE_SBLABELSUPP to SBLABEL_MNT

Just a flag rename as we prepare to make it not so special.

Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/hooks.c            | 28 ++++++++++++++--------------
 security/selinux/include/security.h |  2 +-
 2 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index e13d65a62104..344f4f999681 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -387,7 +387,7 @@ static int sb_finish_set_opts(struct super_block *sb)
 		}
 	}
 
-	sbsec->flags |= (SE_SBINITIALIZED | SE_SBLABELSUPP);
+	sbsec->flags |= (SE_SBINITIALIZED | SBLABEL_MNT);
 
 	if (sbsec->behavior > ARRAY_SIZE(labeling_behaviors))
 		printk(KERN_ERR "SELinux: initialized (dev %s, type %s), unknown behavior\n",
@@ -401,18 +401,18 @@ static int sb_finish_set_opts(struct super_block *sb)
 	    sbsec->behavior == SECURITY_FS_USE_MNTPOINT ||
 	    sbsec->behavior == SECURITY_FS_USE_NONE ||
 	    sbsec->behavior > ARRAY_SIZE(labeling_behaviors))
-		sbsec->flags &= ~SE_SBLABELSUPP;
+		sbsec->flags &= ~SBLABEL_MNT;
 
 	/* Special handling for sysfs. Is genfs but also has setxattr handler*/
 	if (strncmp(sb->s_type->name, "sysfs", sizeof("sysfs")) == 0)
-		sbsec->flags |= SE_SBLABELSUPP;
+		sbsec->flags |= SBLABEL_MNT;
 
 	/*
 	 * Special handling for rootfs. Is genfs but supports
 	 * setting SELinux context on in-core inodes.
 	 */
 	if (strncmp(sb->s_type->name, "rootfs", sizeof("rootfs")) == 0)
-		sbsec->flags |= SE_SBLABELSUPP;
+		sbsec->flags |= SBLABEL_MNT;
 
 	/* Initialize the root inode. */
 	rc = inode_doinit_with_dentry(root_inode, root);
@@ -477,7 +477,7 @@ static int selinux_get_mnt_opts(const struct super_block *sb,
 		tmp >>= 1;
 	}
 	/* Check if the Label support flag is set */
-	if (sbsec->flags & SE_SBLABELSUPP)
+	if (sbsec->flags & SBLABEL_MNT)
 		opts->num_mnt_opts++;
 
 	opts->mnt_opts = kcalloc(opts->num_mnt_opts, sizeof(char *), GFP_ATOMIC);
@@ -524,9 +524,9 @@ static int selinux_get_mnt_opts(const struct super_block *sb,
 		opts->mnt_opts[i] = context;
 		opts->mnt_opts_flags[i++] = ROOTCONTEXT_MNT;
 	}
-	if (sbsec->flags & SE_SBLABELSUPP) {
+	if (sbsec->flags & SBLABEL_MNT) {
 		opts->mnt_opts[i] = NULL;
-		opts->mnt_opts_flags[i++] = SE_SBLABELSUPP;
+		opts->mnt_opts_flags[i++] = SBLABEL_MNT;
 	}
 
 	BUG_ON(i != opts->num_mnt_opts);
@@ -615,7 +615,7 @@ static int selinux_set_mnt_opts(struct super_block *sb,
 	for (i = 0; i < num_opts; i++) {
 		u32 sid;
 
-		if (flags[i] == SE_SBLABELSUPP)
+		if (flags[i] == SBLABEL_MNT)
 			continue;
 		rc = security_context_to_sid(mount_options[i],
 					     strlen(mount_options[i]), &sid);
@@ -1025,7 +1025,7 @@ static void selinux_write_opts(struct seq_file *m,
 		case DEFCONTEXT_MNT:
 			prefix = DEFCONTEXT_STR;
 			break;
-		case SE_SBLABELSUPP:
+		case SBLABEL_MNT:
 			seq_putc(m, ',');
 			seq_puts(m, LABELSUPP_STR);
 			continue;
@@ -1624,7 +1624,7 @@ static int may_create(struct inode *dir,
 	if (rc)
 		return rc;
 
-	if (!newsid || !(sbsec->flags & SE_SBLABELSUPP)) {
+	if (!newsid || !(sbsec->flags & SBLABEL_MNT)) {
 		rc = security_transition_sid(sid, dsec->sid, tclass,
 					     &dentry->d_name, &newsid);
 		if (rc)
@@ -2412,7 +2412,7 @@ static int selinux_sb_remount(struct super_block *sb, void *data)
 		u32 sid;
 		size_t len;
 
-		if (flags[i] == SE_SBLABELSUPP)
+		if (flags[i] == SBLABEL_MNT)
 			continue;
 		len = strlen(mount_options[i]);
 		rc = security_context_to_sid(mount_options[i], len, &sid);
@@ -2546,7 +2546,7 @@ static int selinux_inode_init_security(struct inode *inode, struct inode *dir,
 	if ((sbsec->flags & SE_SBINITIALIZED) &&
 	    (sbsec->behavior == SECURITY_FS_USE_MNTPOINT))
 		newsid = sbsec->mntpoint_sid;
-	else if (!newsid || !(sbsec->flags & SE_SBLABELSUPP)) {
+	else if (!newsid || !(sbsec->flags & SBLABEL_MNT)) {
 		rc = security_transition_sid(sid, dsec->sid,
 					     inode_mode_to_security_class(inode->i_mode),
 					     qstr, &newsid);
@@ -2568,7 +2568,7 @@ static int selinux_inode_init_security(struct inode *inode, struct inode *dir,
 		isec->initialized = 1;
 	}
 
-	if (!ss_initialized || !(sbsec->flags & SE_SBLABELSUPP))
+	if (!ss_initialized || !(sbsec->flags & SBLABEL_MNT))
 		return -EOPNOTSUPP;
 
 	if (name) {
@@ -2776,7 +2776,7 @@ static int selinux_inode_setxattr(struct dentry *dentry, const char *name,
 		return selinux_inode_setotherxattr(dentry, name);
 
 	sbsec = inode->i_sb->s_security;
-	if (!(sbsec->flags & SE_SBLABELSUPP))
+	if (!(sbsec->flags & SBLABEL_MNT))
 		return -EOPNOTSUPP;
 
 	if (!inode_owner_or_capable(inode))
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h
index 6d3885165d14..7ec750609cca 100644
--- a/security/selinux/include/security.h
+++ b/security/selinux/include/security.h
@@ -52,7 +52,7 @@
 /* Non-mount related flags */
 #define SE_SBINITIALIZED	0x10
 #define SE_SBPROC		0x20
-#define SE_SBLABELSUPP	0x40
+#define SBLABEL_MNT	0x40
 
 #define CONTEXT_STR	"context="
 #define FSCONTEXT_STR	"fscontext="
-- 
cgit 


From eadcabc697e904e0d93d10070a324d8855740b91 Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Fri, 24 Aug 2012 15:59:14 -0400
Subject: SELinux: do all flags twiddling in one place

Currently we set the initialize and seclabel flag in one place.  Do some
unrelated printk then we unset the seclabel flag.  Eww.  Instead do the flag
twiddling in one place in the code not seperated by unrelated printk.  Also
don't set and unset the seclabel flag.  Only set it if we need to.

Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/hooks.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 344f4f999681..ca0a1c671f0e 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -387,8 +387,6 @@ static int sb_finish_set_opts(struct super_block *sb)
 		}
 	}
 
-	sbsec->flags |= (SE_SBINITIALIZED | SBLABEL_MNT);
-
 	if (sbsec->behavior > ARRAY_SIZE(labeling_behaviors))
 		printk(KERN_ERR "SELinux: initialized (dev %s, type %s), unknown behavior\n",
 		       sb->s_id, sb->s_type->name);
@@ -397,11 +395,11 @@ static int sb_finish_set_opts(struct super_block *sb)
 		       sb->s_id, sb->s_type->name,
 		       labeling_behaviors[sbsec->behavior-1]);
 
-	if (sbsec->behavior == SECURITY_FS_USE_GENFS ||
-	    sbsec->behavior == SECURITY_FS_USE_MNTPOINT ||
-	    sbsec->behavior == SECURITY_FS_USE_NONE ||
-	    sbsec->behavior > ARRAY_SIZE(labeling_behaviors))
-		sbsec->flags &= ~SBLABEL_MNT;
+	sbsec->flags |= SE_SBINITIALIZED;
+	if (sbsec->behavior == SECURITY_FS_USE_XATTR ||
+	    sbsec->behavior == SECURITY_FS_USE_TRANS ||
+	    sbsec->behavior == SECURITY_FS_USE_TASK)
+		sbsec->flags |= SBLABEL_MNT;
 
 	/* Special handling for sysfs. Is genfs but also has setxattr handler*/
 	if (strncmp(sb->s_type->name, "sysfs", sizeof("sysfs")) == 0)
-- 
cgit 


From cfca0303da0e2c3f570cb5cfc7c373828e6c13a2 Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Tue, 9 Oct 2012 16:20:08 -0400
Subject: SELinux: renumber the superblock options

Just to make it clear that we have mount time options and flags,
separate them.  Since I decided to move the non-mount options above
above 0x10, we need a short instead of a char.  (x86 padding says
this takes up no additional space as we have a 3byte whole in the
structure)

Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/include/objsec.h   | 2 +-
 security/selinux/include/security.h | 7 ++++---
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/security/selinux/include/objsec.h b/security/selinux/include/objsec.h
index aa47bcabb5f6..fe99f64a1d54 100644
--- a/security/selinux/include/objsec.h
+++ b/security/selinux/include/objsec.h
@@ -59,7 +59,7 @@ struct superblock_security_struct {
 	u32 def_sid;			/* default SID for labeling */
 	u32 mntpoint_sid;		/* SECURITY_FS_USE_MNTPOINT context for files */
 	unsigned int behavior;		/* labeling behavior */
-	unsigned char flags;		/* which mount options were specified */
+	unsigned short flags;		/* which mount options were specified */
 	struct mutex lock;
 	struct list_head isec_head;
 	spinlock_t isec_lock;
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h
index 7ec750609cca..9c424d8bd2e0 100644
--- a/security/selinux/include/security.h
+++ b/security/selinux/include/security.h
@@ -45,14 +45,15 @@
 /* Mask for just the mount related flags */
 #define SE_MNTMASK	0x0f
 /* Super block security struct flags for mount options */
+/* BE CAREFUL, these need to be the low order bits for selinux_get_mnt_opts */
 #define CONTEXT_MNT	0x01
 #define FSCONTEXT_MNT	0x02
 #define ROOTCONTEXT_MNT	0x04
 #define DEFCONTEXT_MNT	0x08
+#define SBLABEL_MNT	0x10
 /* Non-mount related flags */
-#define SE_SBINITIALIZED	0x10
-#define SE_SBPROC		0x20
-#define SBLABEL_MNT	0x40
+#define SE_SBINITIALIZED	0x0100
+#define SE_SBPROC		0x0200
 
 #define CONTEXT_STR	"context="
 #define FSCONTEXT_STR	"fscontext="
-- 
cgit 


From f936c6e502d3bc21b87c9830b3a24d1e07e6b6e1 Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Wed, 10 Oct 2012 10:38:47 -0400
Subject: SELinux: change sbsec->behavior to short

We only have 6 options, so char is good enough, but use a short as that
packs nicely.  This shrinks the superblock_security_struct just a little
bit.

Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/include/objsec.h   | 2 +-
 security/selinux/include/security.h | 2 +-
 security/selinux/ss/services.c      | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/security/selinux/include/objsec.h b/security/selinux/include/objsec.h
index fe99f64a1d54..b1dfe1049450 100644
--- a/security/selinux/include/objsec.h
+++ b/security/selinux/include/objsec.h
@@ -58,7 +58,7 @@ struct superblock_security_struct {
 	u32 sid;			/* SID of file system superblock */
 	u32 def_sid;			/* default SID for labeling */
 	u32 mntpoint_sid;		/* SECURITY_FS_USE_MNTPOINT context for files */
-	unsigned int behavior;		/* labeling behavior */
+	unsigned short behavior;	/* labeling behavior */
 	unsigned short flags;		/* which mount options were specified */
 	struct mutex lock;
 	struct list_head isec_head;
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h
index 9c424d8bd2e0..20830be6b61f 100644
--- a/security/selinux/include/security.h
+++ b/security/selinux/include/security.h
@@ -171,7 +171,7 @@ int security_get_allow_unknown(void);
 #define SECURITY_FS_USE_NONE		5 /* no labeling support */
 #define SECURITY_FS_USE_MNTPOINT	6 /* use mountpoint labeling */
 
-int security_fs_use(const char *fstype, unsigned int *behavior,
+int security_fs_use(const char *fstype, short unsigned int *behavior,
 	u32 *sid);
 
 int security_genfs_sid(const char *fstype, char *name, u16 sclass,
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index b4feecc3fe01..603c638434bb 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -2329,7 +2329,7 @@ out:
  */
 int security_fs_use(
 	const char *fstype,
-	unsigned int *behavior,
+	short unsigned int *behavior,
 	u32 *sid)
 {
 	int rc = 0;
-- 
cgit 


From 308ab70c465d97cf7e3168961dfd365535de21a6 Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Fri, 24 Aug 2012 15:59:21 -0400
Subject: SELinux: do not handle seclabel as a special flag

Instead of having special code around the 'non-mount' seclabel mount option
just handle it like the mount options.

Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/hooks.c            | 3 ---
 security/selinux/include/security.h | 2 +-
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index ca0a1c671f0e..5596dc51e21b 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -474,9 +474,6 @@ static int selinux_get_mnt_opts(const struct super_block *sb,
 			opts->num_mnt_opts++;
 		tmp >>= 1;
 	}
-	/* Check if the Label support flag is set */
-	if (sbsec->flags & SBLABEL_MNT)
-		opts->num_mnt_opts++;
 
 	opts->mnt_opts = kcalloc(opts->num_mnt_opts, sizeof(char *), GFP_ATOMIC);
 	if (!opts->mnt_opts) {
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h
index 20830be6b61f..1a73fcd51d56 100644
--- a/security/selinux/include/security.h
+++ b/security/selinux/include/security.h
@@ -43,7 +43,7 @@
 #endif
 
 /* Mask for just the mount related flags */
-#define SE_MNTMASK	0x0f
+#define SE_MNTMASK	0x1f
 /* Super block security struct flags for mount options */
 /* BE CAREFUL, these need to be the low order bits for selinux_get_mnt_opts */
 #define CONTEXT_MNT	0x01
-- 
cgit 


From a64c54cf0811b8032fdab8c9d52576f0370837fa Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Fri, 24 Aug 2012 15:59:07 -0400
Subject: SELinux: pass a superblock to security_fs_use

Rather than passing pointers to memory locations, strings, and other
stuff just give up on the separation and give security_fs_use the
superblock.  It just makes the code easier to read (even if not easier to
reuse on some other OS)

Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/hooks.c            |  2 +-
 security/selinux/include/security.h |  3 +--
 security/selinux/ss/services.c      | 21 +++++++++------------
 3 files changed, 11 insertions(+), 15 deletions(-)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 5596dc51e21b..ec15a5694b9e 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -677,7 +677,7 @@ static int selinux_set_mnt_opts(struct super_block *sb,
 		sbsec->flags |= SE_SBPROC;
 
 	/* Determine the labeling behavior to use for this filesystem type. */
-	rc = security_fs_use(sb->s_type->name, &sbsec->behavior, &sbsec->sid);
+	rc = security_fs_use(sb);
 	if (rc) {
 		printk(KERN_WARNING "%s: security_fs_use(%s) returned %d\n",
 		       __func__, sb->s_type->name, rc);
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h
index 1a73fcd51d56..01a0382c43ca 100644
--- a/security/selinux/include/security.h
+++ b/security/selinux/include/security.h
@@ -171,8 +171,7 @@ int security_get_allow_unknown(void);
 #define SECURITY_FS_USE_NONE		5 /* no labeling support */
 #define SECURITY_FS_USE_MNTPOINT	6 /* use mountpoint labeling */
 
-int security_fs_use(const char *fstype, short unsigned int *behavior,
-	u32 *sid);
+int security_fs_use(struct super_block *sb);
 
 int security_genfs_sid(const char *fstype, char *name, u16 sclass,
 	u32 *sid);
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index 603c638434bb..a90721771615 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -2323,17 +2323,14 @@ out:
 
 /**
  * security_fs_use - Determine how to handle labeling for a filesystem.
- * @fstype: filesystem type
- * @behavior: labeling behavior
- * @sid: SID for filesystem (superblock)
+ * @sb: superblock in question
  */
-int security_fs_use(
-	const char *fstype,
-	short unsigned int *behavior,
-	u32 *sid)
+int security_fs_use(struct super_block *sb)
 {
 	int rc = 0;
 	struct ocontext *c;
+	struct superblock_security_struct *sbsec = sb->s_security;
+	const char *fstype = sb->s_type->name;
 
 	read_lock(&policy_rwlock);
 
@@ -2345,21 +2342,21 @@ int security_fs_use(
 	}
 
 	if (c) {
-		*behavior = c->v.behavior;
+		sbsec->behavior = c->v.behavior;
 		if (!c->sid[0]) {
 			rc = sidtab_context_to_sid(&sidtab, &c->context[0],
 						   &c->sid[0]);
 			if (rc)
 				goto out;
 		}
-		*sid = c->sid[0];
+		sbsec->sid = c->sid[0];
 	} else {
-		rc = security_genfs_sid(fstype, "/", SECCLASS_DIR, sid);
+		rc = security_genfs_sid(fstype, "/", SECCLASS_DIR, &sbsec->sid);
 		if (rc) {
-			*behavior = SECURITY_FS_USE_NONE;
+			sbsec->behavior = SECURITY_FS_USE_NONE;
 			rc = 0;
 		} else {
-			*behavior = SECURITY_FS_USE_GENFS;
+			sbsec->behavior = SECURITY_FS_USE_GENFS;
 		}
 	}
 
-- 
cgit 


From b43e725d8d386bf2092473953b525aaae71b6c28 Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Wed, 10 Oct 2012 14:27:35 -0400
Subject: SELinux: use a helper function to determine seclabel

Use a helper to determine if a superblock should have the seclabel flag
rather than doing it in the function.  I'm going to use this in the
security server as well.

Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/hooks.c | 38 ++++++++++++++++++++++++--------------
 1 file changed, 24 insertions(+), 14 deletions(-)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index ec15a5694b9e..b222e966babe 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -354,6 +354,29 @@ static int may_context_mount_inode_relabel(u32 sid,
 	return rc;
 }
 
+static int selinux_is_sblabel_mnt(struct super_block *sb)
+{
+	struct superblock_security_struct *sbsec = sb->s_security;
+
+	if (sbsec->behavior == SECURITY_FS_USE_XATTR ||
+	    sbsec->behavior == SECURITY_FS_USE_TRANS ||
+	    sbsec->behavior == SECURITY_FS_USE_TASK)
+		return 1;
+
+	/* Special handling for sysfs. Is genfs but also has setxattr handler*/
+	if (strncmp(sb->s_type->name, "sysfs", sizeof("sysfs")) == 0)
+		return 1;
+
+	/*
+	 * Special handling for rootfs. Is genfs but supports
+	 * setting SELinux context on in-core inodes.
+	 */
+	if (strncmp(sb->s_type->name, "rootfs", sizeof("rootfs")) == 0)
+		return 1;
+
+	return 0;
+}
+
 static int sb_finish_set_opts(struct super_block *sb)
 {
 	struct superblock_security_struct *sbsec = sb->s_security;
@@ -396,20 +419,7 @@ static int sb_finish_set_opts(struct super_block *sb)
 		       labeling_behaviors[sbsec->behavior-1]);
 
 	sbsec->flags |= SE_SBINITIALIZED;
-	if (sbsec->behavior == SECURITY_FS_USE_XATTR ||
-	    sbsec->behavior == SECURITY_FS_USE_TRANS ||
-	    sbsec->behavior == SECURITY_FS_USE_TASK)
-		sbsec->flags |= SBLABEL_MNT;
-
-	/* Special handling for sysfs. Is genfs but also has setxattr handler*/
-	if (strncmp(sb->s_type->name, "sysfs", sizeof("sysfs")) == 0)
-		sbsec->flags |= SBLABEL_MNT;
-
-	/*
-	 * Special handling for rootfs. Is genfs but supports
-	 * setting SELinux context on in-core inodes.
-	 */
-	if (strncmp(sb->s_type->name, "rootfs", sizeof("rootfs")) == 0)
+	if (selinux_is_sblabel_mnt(sb))
 		sbsec->flags |= SBLABEL_MNT;
 
 	/* Initialize the root inode. */
-- 
cgit 


From b04eea886409de7460b5727b5931fb0bd417275f Mon Sep 17 00:00:00 2001
From: Paul Moore <pmoore@redhat.com>
Date: Tue, 23 Jul 2013 17:38:38 -0400
Subject: selinux: fix problems in netnode when BUG() is compiled out

When the BUG() macro is disabled at compile time it can cause some
problems in the SELinux netnode code: invalid return codes and
uninitialized variables.  This patch fixes this by making sure we take
some corrective action after the BUG() macro.

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/netnode.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/security/selinux/netnode.c b/security/selinux/netnode.c
index c5454c0477c3..03a72c32afd7 100644
--- a/security/selinux/netnode.c
+++ b/security/selinux/netnode.c
@@ -166,6 +166,7 @@ static void sel_netnode_insert(struct sel_netnode *node)
 		break;
 	default:
 		BUG();
+		return;
 	}
 
 	/* we need to impose a limit on the growth of the hash table so check
@@ -225,6 +226,7 @@ static int sel_netnode_sid_slow(void *addr, u16 family, u32 *sid)
 		break;
 	default:
 		BUG();
+		ret = -EINVAL;
 	}
 	if (ret != 0)
 		goto out;
-- 
cgit 


From 2be4d74f2fd45460d70d4fe65cc1972ef45bf849 Mon Sep 17 00:00:00 2001
From: Chris PeBenito <cpebenito@tresys.com>
Date: Fri, 3 May 2013 09:05:39 -0400
Subject: Add SELinux policy capability for always checking packet and peer
 classes.

Currently the packet class in SELinux is not checked if there are no
SECMARK rules in the security or mangle netfilter tables.  Some systems
prefer that packets are always checked, for example, to protect the system
should the netfilter rules fail to load or if the nefilter rules
were maliciously flushed.

Add the always_check_network policy capability which, when enabled, treats
SECMARK as enabled, even if there are no netfilter SECMARK rules and
treats peer labeling as enabled, even if there is no Netlabel or
labeled IPSEC configuration.

Includes definition of "redhat1" SELinux policy capability, which
exists in the SELinux userpace library, to keep ordering correct.

The SELinux userpace portion of this was merged last year, but this kernel
change fell on the floor.

Signed-off-by: Chris PeBenito <cpebenito@tresys.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/hooks.c            | 26 +++++++++++++++++++++-----
 security/selinux/include/security.h |  3 +++
 security/selinux/selinuxfs.c        |  4 +++-
 security/selinux/ss/services.c      |  3 +++
 4 files changed, 30 insertions(+), 6 deletions(-)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index b222e966babe..4fbf2c5f26ce 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -136,12 +136,28 @@ static struct kmem_cache *sel_inode_cache;
  * This function checks the SECMARK reference counter to see if any SECMARK
  * targets are currently configured, if the reference counter is greater than
  * zero SECMARK is considered to be enabled.  Returns true (1) if SECMARK is
- * enabled, false (0) if SECMARK is disabled.
+ * enabled, false (0) if SECMARK is disabled.  If the always_check_network
+ * policy capability is enabled, SECMARK is always considered enabled.
  *
  */
 static int selinux_secmark_enabled(void)
 {
-	return (atomic_read(&selinux_secmark_refcount) > 0);
+	return (selinux_policycap_alwaysnetwork || atomic_read(&selinux_secmark_refcount));
+}
+
+/**
+ * selinux_peerlbl_enabled - Check to see if peer labeling is currently enabled
+ *
+ * Description:
+ * This function checks if NetLabel or labeled IPSEC is enabled.  Returns true
+ * (1) if any are enabled or false (0) if neither are enabled.  If the
+ * always_check_network policy capability is enabled, peer labeling
+ * is always considered enabled.
+ *
+ */
+static int selinux_peerlbl_enabled(void)
+{
+	return (selinux_policycap_alwaysnetwork || netlbl_enabled() || selinux_xfrm_enabled());
 }
 
 /*
@@ -4197,7 +4213,7 @@ static int selinux_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
 		return selinux_sock_rcv_skb_compat(sk, skb, family);
 
 	secmark_active = selinux_secmark_enabled();
-	peerlbl_active = netlbl_enabled() || selinux_xfrm_enabled();
+	peerlbl_active = selinux_peerlbl_enabled();
 	if (!secmark_active && !peerlbl_active)
 		return 0;
 
@@ -4579,7 +4595,7 @@ static unsigned int selinux_ip_forward(struct sk_buff *skb, int ifindex,
 
 	secmark_active = selinux_secmark_enabled();
 	netlbl_active = netlbl_enabled();
-	peerlbl_active = netlbl_active || selinux_xfrm_enabled();
+	peerlbl_active = selinux_peerlbl_enabled();
 	if (!secmark_active && !peerlbl_active)
 		return NF_ACCEPT;
 
@@ -4731,7 +4747,7 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, int ifindex,
 		return NF_ACCEPT;
 #endif
 	secmark_active = selinux_secmark_enabled();
-	peerlbl_active = netlbl_enabled() || selinux_xfrm_enabled();
+	peerlbl_active = selinux_peerlbl_enabled();
 	if (!secmark_active && !peerlbl_active)
 		return NF_ACCEPT;
 
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h
index 01a0382c43ca..004a2479880f 100644
--- a/security/selinux/include/security.h
+++ b/security/selinux/include/security.h
@@ -69,12 +69,15 @@ extern int selinux_enabled;
 enum {
 	POLICYDB_CAPABILITY_NETPEER,
 	POLICYDB_CAPABILITY_OPENPERM,
+	POLICYDB_CAPABILITY_REDHAT1,
+	POLICYDB_CAPABILITY_ALWAYSNETWORK,
 	__POLICYDB_CAPABILITY_MAX
 };
 #define POLICYDB_CAPABILITY_MAX (__POLICYDB_CAPABILITY_MAX - 1)
 
 extern int selinux_policycap_netpeer;
 extern int selinux_policycap_openperm;
+extern int selinux_policycap_alwaysnetwork;
 
 /*
  * type_datum properties
diff --git a/security/selinux/selinuxfs.c b/security/selinux/selinuxfs.c
index ff427733c290..5122affe06a8 100644
--- a/security/selinux/selinuxfs.c
+++ b/security/selinux/selinuxfs.c
@@ -44,7 +44,9 @@
 /* Policy capability filenames */
 static char *policycap_names[] = {
 	"network_peer_controls",
-	"open_perms"
+	"open_perms",
+	"redhat1",
+	"always_check_network"
 };
 
 unsigned int selinux_checkreqprot = CONFIG_SECURITY_SELINUX_CHECKREQPROT_VALUE;
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index a90721771615..d106733ad987 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -72,6 +72,7 @@
 
 int selinux_policycap_netpeer;
 int selinux_policycap_openperm;
+int selinux_policycap_alwaysnetwork;
 
 static DEFINE_RWLOCK(policy_rwlock);
 
@@ -1812,6 +1813,8 @@ static void security_load_policycaps(void)
 						  POLICYDB_CAPABILITY_NETPEER);
 	selinux_policycap_openperm = ebitmap_get_bit(&policydb.policycaps,
 						  POLICYDB_CAPABILITY_OPENPERM);
+	selinux_policycap_alwaysnetwork = ebitmap_get_bit(&policydb.policycaps,
+						  POLICYDB_CAPABILITY_ALWAYSNETWORK);
 }
 
 static int security_preserve_bools(struct policydb *p);
-- 
cgit 


From 71a8986d7e4845b6fca1298fe6e3233ce6fde0b7 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Thu, 18 Jul 2013 16:50:59 -0400
Subject: ARM: suspend: use hash of cpu_logical_map value to index into save
 array

Currently we hash the MPIDR of the CPU being suspended to determine which
entry in the sleep_save_sp array to use. In some situations, such as when
we want to resume on another physical CPU, the MPIDR of another CPU should
be used instead.

So let's use the value of cpu_logical_map(smp_processor_id()) in place
of the MPIDR in the suspend path.  This will result in the same index
being used as with the previous code unless the caller has modified
cpu_logical_map() beforehand with the MPIDR of the physical CPU the
suspending logical CPU will resume on.

Consequently, if doing a physical CPU migration, cpu_logical_map() must
be updated appropriately somewhere between cpu_pm_enter() and
cpu_suspend().

The register allocation in __cpu_suspend is reworked in order to better
accommodate the additional argument.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
---
 arch/arm/kernel/sleep.S   | 26 +++++++++++---------------
 arch/arm/kernel/suspend.c |  8 +++++---
 2 files changed, 16 insertions(+), 18 deletions(-)

diff --git a/arch/arm/kernel/sleep.S b/arch/arm/kernel/sleep.S
index db1536b8b30b..622460201911 100644
--- a/arch/arm/kernel/sleep.S
+++ b/arch/arm/kernel/sleep.S
@@ -55,6 +55,7 @@
  * specific registers and some other data for resume.
  *  r0 = suspend function arg0
  *  r1 = suspend function
+ *  r2 = MPIDR value the resuming CPU will use
  */
 ENTRY(__cpu_suspend)
 	stmfd	sp!, {r4 - r11, lr}
@@ -67,23 +68,18 @@ ENTRY(__cpu_suspend)
 	mov	r5, sp			@ current virtual SP
 	add	r4, r4, #12		@ Space for pgd, virt sp, phys resume fn
 	sub	sp, sp, r4		@ allocate CPU state on stack
-	stmfd	sp!, {r0, r1}		@ save suspend func arg and pointer
-	add	r0, sp, #8		@ save pointer to save block
-	mov	r1, r4			@ size of save block
-	mov	r2, r5			@ virtual SP
 	ldr	r3, =sleep_save_sp
+	stmfd	sp!, {r0, r1}		@ save suspend func arg and pointer
 	ldr	r3, [r3, #SLEEP_SAVE_SP_VIRT]
-	ALT_SMP(mrc p15, 0, r9, c0, c0, 5)
-        ALT_UP_B(1f)
-	ldr	r8, =mpidr_hash
-	/*
-	 * This ldmia relies on the memory layout of the mpidr_hash
-	 * struct mpidr_hash.
-	 */
-	ldmia	r8, {r4-r7}	@ r4 = mpidr mask (r5,r6,r7) = l[0,1,2] shifts
-	compute_mpidr_hash	lr, r5, r6, r7, r9, r4
-	add	r3, r3, lr, lsl #2
-1:
+	ALT_SMP(ldr r0, =mpidr_hash)
+	ALT_UP_B(1f)
+	/* This ldmia relies on the memory layout of the mpidr_hash struct */
+	ldmia	r0, {r1, r6-r8}	@ r1 = mpidr mask (r6,r7,r8) = l[0,1,2] shifts
+	compute_mpidr_hash	r0, r6, r7, r8, r2, r1
+	add	r3, r3, r0, lsl #2
+1:	mov	r2, r5			@ virtual SP
+	mov	r1, r4			@ size of save block
+	add	r0, sp, #8		@ pointer to save block
 	bl	__cpu_suspend_save
 	adr	lr, BSYM(cpu_suspend_abort)
 	ldmfd	sp!, {r0, pc}		@ call suspend fn
diff --git a/arch/arm/kernel/suspend.c b/arch/arm/kernel/suspend.c
index 41cf3cbf756d..2835d35234ca 100644
--- a/arch/arm/kernel/suspend.c
+++ b/arch/arm/kernel/suspend.c
@@ -10,7 +10,7 @@
 #include <asm/suspend.h>
 #include <asm/tlbflush.h>
 
-extern int __cpu_suspend(unsigned long, int (*)(unsigned long));
+extern int __cpu_suspend(unsigned long, int (*)(unsigned long), u32 cpuid);
 extern void cpu_resume_mmu(void);
 
 #ifdef CONFIG_MMU
@@ -21,6 +21,7 @@ extern void cpu_resume_mmu(void);
 int cpu_suspend(unsigned long arg, int (*fn)(unsigned long))
 {
 	struct mm_struct *mm = current->active_mm;
+	u32 __mpidr = cpu_logical_map(smp_processor_id());
 	int ret;
 
 	if (!idmap_pgd)
@@ -32,7 +33,7 @@ int cpu_suspend(unsigned long arg, int (*fn)(unsigned long))
 	 * resume (indicated by a zero return code), we need to switch
 	 * back to the correct page tables.
 	 */
-	ret = __cpu_suspend(arg, fn);
+	ret = __cpu_suspend(arg, fn, __mpidr);
 	if (ret == 0) {
 		cpu_switch_mm(mm->pgd, mm);
 		local_flush_bp_all();
@@ -44,7 +45,8 @@ int cpu_suspend(unsigned long arg, int (*fn)(unsigned long))
 #else
 int cpu_suspend(unsigned long arg, int (*fn)(unsigned long))
 {
-	return __cpu_suspend(arg, fn);
+	u32 __mpidr = cpu_logical_map(smp_processor_id());
+	return __cpu_suspend(arg, fn, __mpidr);
 }
 #define	idmap_pgd	NULL
 #endif
-- 
cgit 


From 1a6b69b6548cd0dd82549393f30dd982ceeb79d2 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Thu, 12 Apr 2012 01:40:31 -0400
Subject: ARM: gic: add CPU migration support

This is required by the big.LITTLE switcher code.

The gic_migrate_target() changes the CPU interface mapping for the
current CPU to redirect SGIs to the specified interface, and it also
updates the target CPU for each interrupts to that CPU interface
if they were targeting the current interface.  Finally, pending
SGIs for the current CPU are forwarded to the new interface.

Because Linux does not use it, the SGI source information for the
forwarded SGIs is not preserved.  Neither is the source information
for the SGIs sent by the current CPU to other CPUs adjusted to match
the new CPU interface mapping.  The required registers are banked so
only the target CPU could do it.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
 drivers/irqchip/irq-gic.c       | 87 +++++++++++++++++++++++++++++++++++++++--
 include/linux/irqchip/arm-gic.h |  4 ++
 2 files changed, 88 insertions(+), 3 deletions(-)

diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index ee7c50312066..268874ac75e6 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -253,10 +253,9 @@ static int gic_set_affinity(struct irq_data *d, const struct cpumask *mask_val,
 	if (cpu >= NR_GIC_CPU_IF || cpu >= nr_cpu_ids)
 		return -EINVAL;
 
+	raw_spin_lock(&irq_controller_lock);
 	mask = 0xff << shift;
 	bit = gic_cpu_map[cpu] << shift;
-
-	raw_spin_lock(&irq_controller_lock);
 	val = readl_relaxed(reg) & ~mask;
 	writel_relaxed(val | bit, reg);
 	raw_spin_unlock(&irq_controller_lock);
@@ -646,7 +645,9 @@ static void __init gic_pm_init(struct gic_chip_data *gic)
 void gic_raise_softirq(const struct cpumask *mask, unsigned int irq)
 {
 	int cpu;
-	unsigned long map = 0;
+	unsigned long flags, map = 0;
+
+	raw_spin_lock_irqsave(&irq_controller_lock, flags);
 
 	/* Convert our logical CPU mask into a physical one. */
 	for_each_cpu(cpu, mask)
@@ -660,6 +661,86 @@ void gic_raise_softirq(const struct cpumask *mask, unsigned int irq)
 
 	/* this always happens on GIC0 */
 	writel_relaxed(map << 16 | irq, gic_data_dist_base(&gic_data[0]) + GIC_DIST_SOFTINT);
+
+	raw_spin_unlock_irqrestore(&irq_controller_lock, flags);
+}
+#endif
+
+#ifdef CONFIG_BL_SWITCHER
+/*
+ * gic_migrate_target - migrate IRQs to another CPU interface
+ *
+ * @new_cpu_id: the CPU target ID to migrate IRQs to
+ *
+ * Migrate all peripheral interrupts with a target matching the current CPU
+ * to the interface corresponding to @new_cpu_id.  The CPU interface mapping
+ * is also updated.  Targets to other CPU interfaces are unchanged.
+ * This must be called with IRQs locally disabled.
+ */
+void gic_migrate_target(unsigned int new_cpu_id)
+{
+	unsigned int cur_cpu_id, gic_irqs, gic_nr = 0;
+	void __iomem *dist_base;
+	int i, ror_val, cpu = smp_processor_id();
+	u32 val, cur_target_mask, active_mask;
+
+	if (gic_nr >= MAX_GIC_NR)
+		BUG();
+
+	dist_base = gic_data_dist_base(&gic_data[gic_nr]);
+	if (!dist_base)
+		return;
+	gic_irqs = gic_data[gic_nr].gic_irqs;
+
+	cur_cpu_id = __ffs(gic_cpu_map[cpu]);
+	cur_target_mask = 0x01010101 << cur_cpu_id;
+	ror_val = (cur_cpu_id - new_cpu_id) & 31;
+
+	raw_spin_lock(&irq_controller_lock);
+
+	/* Update the target interface for this logical CPU */
+	gic_cpu_map[cpu] = 1 << new_cpu_id;
+
+	/*
+	 * Find all the peripheral interrupts targetting the current
+	 * CPU interface and migrate them to the new CPU interface.
+	 * We skip DIST_TARGET 0 to 7 as they are read-only.
+	 */
+	for (i = 8; i < DIV_ROUND_UP(gic_irqs, 4); i++) {
+		val = readl_relaxed(dist_base + GIC_DIST_TARGET + i * 4);
+		active_mask = val & cur_target_mask;
+		if (active_mask) {
+			val &= ~active_mask;
+			val |= ror32(active_mask, ror_val);
+			writel_relaxed(val, dist_base + GIC_DIST_TARGET + i*4);
+		}
+	}
+
+	raw_spin_unlock(&irq_controller_lock);
+
+	/*
+	 * Now let's migrate and clear any potential SGIs that might be
+	 * pending for us (cur_cpu_id).  Since GIC_DIST_SGI_PENDING_SET
+	 * is a banked register, we can only forward the SGI using
+	 * GIC_DIST_SOFTINT.  The original SGI source is lost but Linux
+	 * doesn't use that information anyway.
+	 *
+	 * For the same reason we do not adjust SGI source information
+	 * for previously sent SGIs by us to other CPUs either.
+	 */
+	for (i = 0; i < 16; i += 4) {
+		int j;
+		val = readl_relaxed(dist_base + GIC_DIST_SGI_PENDING_SET + i);
+		if (!val)
+			continue;
+		writel_relaxed(val, dist_base + GIC_DIST_SGI_PENDING_CLEAR + i);
+		for (j = i; j < i + 4; j++) {
+			if (val & 0xff)
+				writel_relaxed((1 << (new_cpu_id + 16)) | j,
+						dist_base + GIC_DIST_SOFTINT);
+			val >>= 8;
+		}
+	}
 }
 #endif
 
diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
index 3e203eb23cc7..40bfcac95940 100644
--- a/include/linux/irqchip/arm-gic.h
+++ b/include/linux/irqchip/arm-gic.h
@@ -31,6 +31,8 @@
 #define GIC_DIST_TARGET			0x800
 #define GIC_DIST_CONFIG			0xc00
 #define GIC_DIST_SOFTINT		0xf00
+#define GIC_DIST_SGI_PENDING_CLEAR	0xf10
+#define GIC_DIST_SGI_PENDING_SET	0xf20
 
 #define GICH_HCR			0x0
 #define GICH_VTR			0x4
@@ -73,6 +75,8 @@ static inline void gic_init(unsigned int nr, int start,
 	gic_init_bases(nr, start, dist, cpu, 0, NULL);
 }
 
+void gic_migrate_target(unsigned int new_cpu_id);
+
 #endif /* __ASSEMBLY */
 
 #endif
-- 
cgit 


From 1c33be57496d927ce05b2513ff0c108f69db4345 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Thu, 12 Apr 2012 02:56:10 -0400
Subject: ARM: b.L: core switcher code

This is the core code implementing big.LITTLE switcher functionality.
Rationale for this code is available here:

http://lwn.net/Articles/481055/

The main entry point for a switch request is:

void bL_switch_request(unsigned int cpu, unsigned int new_cluster_id)

If the calling CPU is not the wanted one, this wrapper takes care of
sending the request to the appropriate CPU with schedule_work_on().

At the moment the core switch operation is handled by bL_switch_to()
which must be called on the CPU for which a switch is requested.

What this code does:

  * Return early if the current cluster is the wanted one.

  * Close the gate in the kernel entry vector for both the inbound
    and outbound CPUs.

  * Wake up the inbound CPU so it can perform its reset sequence in
    parallel up to the kernel entry vector gate.

  * Migrate all interrupts in the GIC targeting the outbound CPU
    interface to the inbound CPU interface, including SGIs. This is
    performed by gic_migrate_target() in drivers/irqchip/irq-gic.c.

  * Call cpu_pm_enter() which takes care of flushing the VFP state to
    RAM and save the CPU interface config from the GIC to RAM.

  * Modify the cpu_logical_map to refer to the inbound physical CPU.

  * Call cpu_suspend() which saves the CPU state (general purpose
    registers, page table address) onto the stack and store the
    resulting stack pointer in an array indexed by the updated
    cpu_logical_map, then call the provided shutdown function.
    This happens in arch/arm/kernel/sleep.S.

At this point, the provided shutdown function executed by the outbound
CPU ungates the inbound CPU. Therefore the inbound CPU:

  * Picks up the saved stack pointer in the array indexed by its MPIDR
    in arch/arm/kernel/sleep.S.

  * The MMU and caches are re-enabled using the saved state on the
    provided stack, just like if this was a resume operation from a
    suspended state.

  * Then cpu_suspend() returns, although this is on the inbound CPU
    rather than the outbound CPU which called it initially.

  * The function cpu_pm_exit() is called which effect is to restore the
    CPU interface state in the GIC using the state previously saved by
    the outbound CPU.

  * Exit of bL_switch_to() to resume normal kernel execution on the
    new CPU.

However, the outbound CPU is potentially still running in parallel while
the inbound CPU is resuming normal kernel execution, hence we need
per CPU stack isolation to execute bL_do_switch().  After the outbound
CPU has ungated the inbound CPU, it calls mcpm_cpu_power_down() to:

  * Clean its L1 cache.

  * If it is the last CPU still alive in its cluster (last man standing),
    it also cleans its L2 cache and disables cache snooping from the other
    cluster.

  * Power down the CPU (or whole cluster).

Code called from bL_do_switch() might end up referencing 'current' for
some reasons.  However, 'current' is derived from the stack pointer.
With any arbitrary stack, the returned value for 'current' and any
dereferenced values through it are just random garbage which may lead to
segmentation faults.

The active page table during the execution of bL_do_switch() is also a
problem.  There is no guarantee that the inbound CPU won't destroy the
corresponding task which would free the attached page table while the
outbound CPU is still running and relying on it.

To solve both issues, we borrow some of the task space belonging to
the init/idle task which, by its nature, is lightly used and therefore
is unlikely to clash with our usage.  The init task is also never going
away.

Right now the logical CPU number is assumed to be equivalent to the
physical CPU number within each cluster. The kernel should also be
booted with only one cluster active.  These limitations will be lifted
eventually.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
 arch/arm/Kconfig                   |  18 +++
 arch/arm/common/Makefile           |   1 +
 arch/arm/common/bL_switcher.c      | 241 +++++++++++++++++++++++++++++++++++++
 arch/arm/include/asm/bL_switcher.h |  17 +++
 4 files changed, 277 insertions(+)
 create mode 100644 arch/arm/common/bL_switcher.c
 create mode 100644 arch/arm/include/asm/bL_switcher.h

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 37c0f4e978d4..ade70017fd65 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1538,6 +1538,24 @@ config MCPM
 	  for (multi-)cluster based systems, such as big.LITTLE based
 	  systems.
 
+config BIG_LITTLE
+	bool "big.LITTLE support (Experimental)"
+	depends on CPU_V7 && SMP
+	select MCPM
+	help
+	  This option enables support selections for the big.LITTLE
+	  system architecture.
+
+config BL_SWITCHER
+	bool "big.LITTLE switcher support"
+	depends on BIG_LITTLE && MCPM && HOTPLUG_CPU
+	select CPU_PM
+	select ARM_CPU_SUSPEND
+	help
+	  The big.LITTLE "switcher" provides the core functionality to
+	  transparently handle transition between a cluster of A15's
+	  and a cluster of A7's in a big.LITTLE system.
+
 choice
 	prompt "Memory split"
 	default VMSPLIT_3G
diff --git a/arch/arm/common/Makefile b/arch/arm/common/Makefile
index 8c60f473e976..2586240d5a45 100644
--- a/arch/arm/common/Makefile
+++ b/arch/arm/common/Makefile
@@ -17,3 +17,4 @@ obj-$(CONFIG_MCPM)		+= mcpm_head.o mcpm_entry.o mcpm_platsmp.o vlock.o
 AFLAGS_mcpm_head.o		:= -march=armv7-a
 AFLAGS_vlock.o			:= -march=armv7-a
 obj-$(CONFIG_TI_PRIV_EDMA)	+= edma.o
+obj-$(CONFIG_BL_SWITCHER)	+= bL_switcher.o
diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
new file mode 100644
index 000000000000..f8f2e96b1466
--- /dev/null
+++ b/arch/arm/common/bL_switcher.c
@@ -0,0 +1,241 @@
+/*
+ * arch/arm/common/bL_switcher.c -- big.LITTLE cluster switcher core driver
+ *
+ * Created by:	Nicolas Pitre, March 2012
+ * Copyright:	(C) 2012-2013  Linaro Limited
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/cpu_pm.h>
+#include <linux/workqueue.h>
+#include <linux/mm.h>
+#include <linux/string.h>
+#include <linux/irqchip/arm-gic.h>
+
+#include <asm/smp_plat.h>
+#include <asm/suspend.h>
+#include <asm/mcpm.h>
+#include <asm/bL_switcher.h>
+
+
+/*
+ * Use our own MPIDR accessors as the generic ones in asm/cputype.h have
+ * __attribute_const__ and we don't want the compiler to assume any
+ * constness here as the value _does_ change along some code paths.
+ */
+
+static int read_mpidr(void)
+{
+	unsigned int id;
+	asm volatile ("mrc p15, 0, %0, c0, c0, 5" : "=r" (id));
+	return id & MPIDR_HWID_BITMASK;
+}
+
+/*
+ * bL switcher core code.
+ */
+
+static void bL_do_switch(void *_unused)
+{
+	unsigned mpidr, cpuid, clusterid, ob_cluster, ib_cluster;
+
+	/*
+	 * We now have a piece of stack borrowed from the init task's.
+	 * Let's also switch to init_mm right away to match it.
+	 */
+	cpu_switch_mm(init_mm.pgd, &init_mm);
+
+	pr_debug("%s\n", __func__);
+
+	mpidr = read_mpidr();
+	cpuid = MPIDR_AFFINITY_LEVEL(mpidr, 0);
+	clusterid = MPIDR_AFFINITY_LEVEL(mpidr, 1);
+	ob_cluster = clusterid;
+	ib_cluster = clusterid ^ 1;
+
+	/*
+	 * Our state has been saved at this point.  Let's release our
+	 * inbound CPU.
+	 */
+	mcpm_set_entry_vector(cpuid, ib_cluster, cpu_resume);
+	sev();
+
+	/*
+	 * From this point, we must assume that our counterpart CPU might
+	 * have taken over in its parallel world already, as if execution
+	 * just returned from cpu_suspend().  It is therefore important to
+	 * be very careful not to make any change the other guy is not
+	 * expecting.  This is why we need stack isolation.
+	 *
+	 * Fancy under cover tasks could be performed here.  For now
+	 * we have none.
+	 */
+
+	/* Let's put ourself down. */
+	mcpm_cpu_power_down();
+
+	/* should never get here */
+	BUG();
+}
+
+/*
+ * Stack isolation.  To ensure 'current' remains valid, we just borrow
+ * a slice of the init/idle task which should be fairly lightly used.
+ * The borrowed area starts just above the thread_info structure located
+ * at the very bottom of the stack, aligned to a cache line.
+ */
+#define STACK_SIZE 256
+extern void call_with_stack(void (*fn)(void *), void *arg, void *sp);
+static int bL_switchpoint(unsigned long _arg)
+{
+	unsigned int mpidr = read_mpidr();
+	unsigned int cpuid = MPIDR_AFFINITY_LEVEL(mpidr, 0);
+	unsigned int clusterid = MPIDR_AFFINITY_LEVEL(mpidr, 1);
+	unsigned int cpu_index = cpuid + clusterid * MAX_CPUS_PER_CLUSTER;
+	void *stack = &init_thread_info + 1;
+	stack = PTR_ALIGN(stack, L1_CACHE_BYTES);
+	stack += cpu_index * STACK_SIZE + STACK_SIZE;
+	call_with_stack(bL_do_switch, (void *)_arg, stack);
+	BUG();
+}
+
+/*
+ * Generic switcher interface
+ */
+
+/*
+ * bL_switch_to - Switch to a specific cluster for the current CPU
+ * @new_cluster_id: the ID of the cluster to switch to.
+ *
+ * This function must be called on the CPU to be switched.
+ * Returns 0 on success, else a negative status code.
+ */
+static int bL_switch_to(unsigned int new_cluster_id)
+{
+	unsigned int mpidr, cpuid, clusterid, ob_cluster, ib_cluster, this_cpu;
+	int ret;
+
+	mpidr = read_mpidr();
+	cpuid = MPIDR_AFFINITY_LEVEL(mpidr, 0);
+	clusterid = MPIDR_AFFINITY_LEVEL(mpidr, 1);
+	ob_cluster = clusterid;
+	ib_cluster = clusterid ^ 1;
+
+	if (new_cluster_id == clusterid)
+		return 0;
+
+	pr_debug("before switch: CPU %d in cluster %d\n", cpuid, clusterid);
+
+	/* Close the gate for our entry vectors */
+	mcpm_set_entry_vector(cpuid, ob_cluster, NULL);
+	mcpm_set_entry_vector(cpuid, ib_cluster, NULL);
+
+	/*
+	 * Let's wake up the inbound CPU now in case it requires some delay
+	 * to come online, but leave it gated in our entry vector code.
+	 */
+	ret = mcpm_cpu_power_up(cpuid, ib_cluster);
+	if (ret) {
+		pr_err("%s: mcpm_cpu_power_up() returned %d\n", __func__, ret);
+		return ret;
+	}
+
+	/*
+	 * From this point we are entering the switch critical zone
+	 * and can't take any interrupts anymore.
+	 */
+	local_irq_disable();
+	local_fiq_disable();
+
+	this_cpu = smp_processor_id();
+
+	/* redirect GIC's SGIs to our counterpart */
+	gic_migrate_target(cpuid + ib_cluster*4);
+
+	/*
+	 * Raise a SGI on the inbound CPU to make sure it doesn't stall
+	 * in a possible WFI, such as in mcpm_power_down().
+	 */
+	arch_send_wakeup_ipi_mask(cpumask_of(this_cpu));
+
+	ret = cpu_pm_enter();
+
+	/* we can not tolerate errors at this point */
+	if (ret)
+		panic("%s: cpu_pm_enter() returned %d\n", __func__, ret);
+
+	/* Flip the cluster in the CPU logical map for this CPU. */
+	cpu_logical_map(this_cpu) ^= (1 << 8);
+
+	/* Let's do the actual CPU switch. */
+	ret = cpu_suspend(0, bL_switchpoint);
+	if (ret > 0)
+		panic("%s: cpu_suspend() returned %d\n", __func__, ret);
+
+	/* We are executing on the inbound CPU at this point */
+	mpidr = read_mpidr();
+	cpuid = MPIDR_AFFINITY_LEVEL(mpidr, 0);
+	clusterid = MPIDR_AFFINITY_LEVEL(mpidr, 1);
+	pr_debug("after switch: CPU %d in cluster %d\n", cpuid, clusterid);
+	BUG_ON(clusterid != ib_cluster);
+
+	mcpm_cpu_powered_up();
+
+	ret = cpu_pm_exit();
+
+	local_fiq_enable();
+	local_irq_enable();
+
+	if (ret)
+		pr_err("%s exiting with error %d\n", __func__, ret);
+	return ret;
+}
+
+struct switch_args {
+	unsigned int cluster;
+	struct work_struct work;
+};
+
+static void __bL_switch_to(struct work_struct *work)
+{
+	struct switch_args *args = container_of(work, struct switch_args, work);
+	bL_switch_to(args->cluster);
+}
+
+/*
+ * bL_switch_request - Switch to a specific cluster for the given CPU
+ *
+ * @cpu: the CPU to switch
+ * @new_cluster_id: the ID of the cluster to switch to.
+ *
+ * This function causes a cluster switch on the given CPU.  If the given
+ * CPU is the same as the calling CPU then the switch happens right away.
+ * Otherwise the request is put on a work queue to be scheduled on the
+ * remote CPU.
+ */
+void bL_switch_request(unsigned int cpu, unsigned int new_cluster_id)
+{
+	unsigned int this_cpu = get_cpu();
+	struct switch_args args;
+
+	if (cpu == this_cpu) {
+		bL_switch_to(new_cluster_id);
+		put_cpu();
+		return;
+	}
+	put_cpu();
+
+	args.cluster = new_cluster_id;
+	INIT_WORK_ONSTACK(&args.work, __bL_switch_to);
+	schedule_work_on(cpu, &args.work);
+	flush_work(&args.work);
+}
+EXPORT_SYMBOL_GPL(bL_switch_request);
diff --git a/arch/arm/include/asm/bL_switcher.h b/arch/arm/include/asm/bL_switcher.h
new file mode 100644
index 000000000000..72efe3f349b9
--- /dev/null
+++ b/arch/arm/include/asm/bL_switcher.h
@@ -0,0 +1,17 @@
+/*
+ * arch/arm/include/asm/bL_switcher.h
+ *
+ * Created by:  Nicolas Pitre, April 2012
+ * Copyright:   (C) 2012-2013  Linaro Limited
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef ASM_BL_SWITCHER_H
+#define ASM_BL_SWITCHER_H
+
+void bL_switch_request(unsigned int cpu, unsigned int new_cluster_id);
+
+#endif
-- 
cgit 


From 3f09d4799ecc076cccc11ab2333a36ec849d24f5 Mon Sep 17 00:00:00 2001
From: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Date: Wed, 16 May 2012 15:55:54 +0100
Subject: ARM: bL_switcher: add clockevent save/restore support

Per-CPU timers that are shutdown when a CPU is switched over must be disabled
upon switching and reprogrammed on the inbound CPU by relying on the
clock events management API. save/restore sequence is executed with irqs
disabled as mandated by the clock events API.

The next_event is an absolute time, hence, when the inbound CPU resumes,
if the timer has expired the min delta is forced into the tick device to
fire after few cycles.

This patch adds switching support for clock events that are per-CPU and
have to be migrated when a switch takes place; the cpumask of the clock
event device is checked against the cpumask of the current cpu, and if
they match, the clockevent device mode is saved and it is put in
shutdown mode. Resume code reprogrammes the tick device accordingly.

Tested on A15/A7 fast models and architected timers.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
 arch/arm/common/bL_switcher.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index f8f2e96b1466..ca04b5384bb0 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -15,7 +15,11 @@
 #include <linux/sched.h>
 #include <linux/interrupt.h>
 #include <linux/cpu_pm.h>
+#include <linux/cpumask.h>
 #include <linux/workqueue.h>
+#include <linux/clockchips.h>
+#include <linux/hrtimer.h>
+#include <linux/tick.h>
 #include <linux/mm.h>
 #include <linux/string.h>
 #include <linux/irqchip/arm-gic.h>
@@ -121,6 +125,8 @@ static int bL_switchpoint(unsigned long _arg)
 static int bL_switch_to(unsigned int new_cluster_id)
 {
 	unsigned int mpidr, cpuid, clusterid, ob_cluster, ib_cluster, this_cpu;
+	struct tick_device *tdev;
+	enum clock_event_mode tdev_mode;
 	int ret;
 
 	mpidr = read_mpidr();
@@ -166,6 +172,14 @@ static int bL_switch_to(unsigned int new_cluster_id)
 	 */
 	arch_send_wakeup_ipi_mask(cpumask_of(this_cpu));
 
+	tdev = tick_get_device(this_cpu);
+	if (tdev && !cpumask_equal(tdev->evtdev->cpumask, cpumask_of(this_cpu)))
+		tdev = NULL;
+	if (tdev) {
+		tdev_mode = tdev->evtdev->mode;
+		clockevents_set_mode(tdev->evtdev, CLOCK_EVT_MODE_SHUTDOWN);
+	}
+
 	ret = cpu_pm_enter();
 
 	/* we can not tolerate errors at this point */
@@ -191,6 +205,12 @@ static int bL_switch_to(unsigned int new_cluster_id)
 
 	ret = cpu_pm_exit();
 
+	if (tdev) {
+		clockevents_set_mode(tdev->evtdev, tdev_mode);
+		clockevents_program_event(tdev->evtdev,
+					  tdev->evtdev->next_event, 1);
+	}
+
 	local_fiq_enable();
 	local_irq_enable();
 
-- 
cgit 


From 71ce1deeff8f9341ae3b21983e9bdde28e8c96fe Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Fri, 26 Oct 2012 02:36:17 -0400
Subject: ARM: bL_switcher: move to dedicated threads rather than workqueues

The workqueues are problematic as they may be contended.
They can't be scheduled with top priority either.  Also the optimization
in bL_switch_request() to skip the workqueue entirely when the target CPU
and the calling CPU were the same didn't allow for bL_switch_request() to
be called from atomic context, as might be the case for some cpufreq
drivers.

Let's move to dedicated kthreads instead.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
 arch/arm/common/bL_switcher.c      | 101 ++++++++++++++++++++++++++++---------
 arch/arm/include/asm/bL_switcher.h |   2 +-
 2 files changed, 79 insertions(+), 24 deletions(-)

diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index ca04b5384bb0..407c4cc64c0b 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -15,8 +15,10 @@
 #include <linux/sched.h>
 #include <linux/interrupt.h>
 #include <linux/cpu_pm.h>
+#include <linux/cpu.h>
 #include <linux/cpumask.h>
-#include <linux/workqueue.h>
+#include <linux/kthread.h>
+#include <linux/wait.h>
 #include <linux/clockchips.h>
 #include <linux/hrtimer.h>
 #include <linux/tick.h>
@@ -219,15 +221,48 @@ static int bL_switch_to(unsigned int new_cluster_id)
 	return ret;
 }
 
-struct switch_args {
-	unsigned int cluster;
-	struct work_struct work;
+struct bL_thread {
+	struct task_struct *task;
+	wait_queue_head_t wq;
+	int wanted_cluster;
 };
 
-static void __bL_switch_to(struct work_struct *work)
+static struct bL_thread bL_threads[NR_CPUS];
+
+static int bL_switcher_thread(void *arg)
+{
+	struct bL_thread *t = arg;
+	struct sched_param param = { .sched_priority = 1 };
+	int cluster;
+
+	sched_setscheduler_nocheck(current, SCHED_FIFO, &param);
+
+	do {
+		if (signal_pending(current))
+			flush_signals(current);
+		wait_event_interruptible(t->wq,
+				t->wanted_cluster != -1 ||
+				kthread_should_stop());
+		cluster = xchg(&t->wanted_cluster, -1);
+		if (cluster != -1)
+			bL_switch_to(cluster);
+	} while (!kthread_should_stop());
+
+	return 0;
+}
+
+static struct task_struct * __init bL_switcher_thread_create(int cpu, void *arg)
 {
-	struct switch_args *args = container_of(work, struct switch_args, work);
-	bL_switch_to(args->cluster);
+	struct task_struct *task;
+
+	task = kthread_create_on_node(bL_switcher_thread, arg,
+				      cpu_to_node(cpu), "kswitcher_%d", cpu);
+	if (!IS_ERR(task)) {
+		kthread_bind(task, cpu);
+		wake_up_process(task);
+	} else
+		pr_err("%s failed for CPU %d\n", __func__, cpu);
+	return task;
 }
 
 /*
@@ -236,26 +271,46 @@ static void __bL_switch_to(struct work_struct *work)
  * @cpu: the CPU to switch
  * @new_cluster_id: the ID of the cluster to switch to.
  *
- * This function causes a cluster switch on the given CPU.  If the given
- * CPU is the same as the calling CPU then the switch happens right away.
- * Otherwise the request is put on a work queue to be scheduled on the
- * remote CPU.
+ * This function causes a cluster switch on the given CPU by waking up
+ * the appropriate switcher thread.  This function may or may not return
+ * before the switch has occurred.
  */
-void bL_switch_request(unsigned int cpu, unsigned int new_cluster_id)
+int bL_switch_request(unsigned int cpu, unsigned int new_cluster_id)
 {
-	unsigned int this_cpu = get_cpu();
-	struct switch_args args;
+	struct bL_thread *t;
 
-	if (cpu == this_cpu) {
-		bL_switch_to(new_cluster_id);
-		put_cpu();
-		return;
+	if (cpu >= ARRAY_SIZE(bL_threads)) {
+		pr_err("%s: cpu %d out of bounds\n", __func__, cpu);
+		return -EINVAL;
 	}
-	put_cpu();
 
-	args.cluster = new_cluster_id;
-	INIT_WORK_ONSTACK(&args.work, __bL_switch_to);
-	schedule_work_on(cpu, &args.work);
-	flush_work(&args.work);
+	t = &bL_threads[cpu];
+	if (IS_ERR(t->task))
+		return PTR_ERR(t->task);
+	if (!t->task)
+		return -ESRCH;
+
+	t->wanted_cluster = new_cluster_id;
+	wake_up(&t->wq);
+	return 0;
 }
 EXPORT_SYMBOL_GPL(bL_switch_request);
+
+static int __init bL_switcher_init(void)
+{
+	int cpu;
+
+	pr_info("big.LITTLE switcher initializing\n");
+
+	for_each_online_cpu(cpu) {
+		struct bL_thread *t = &bL_threads[cpu];
+		init_waitqueue_head(&t->wq);
+		t->wanted_cluster = -1;
+		t->task = bL_switcher_thread_create(cpu, t);
+	}
+
+	pr_info("big.LITTLE switcher initialized\n");
+	return 0;
+}
+
+late_initcall(bL_switcher_init);
diff --git a/arch/arm/include/asm/bL_switcher.h b/arch/arm/include/asm/bL_switcher.h
index 72efe3f349b9..e0c0bba70bbf 100644
--- a/arch/arm/include/asm/bL_switcher.h
+++ b/arch/arm/include/asm/bL_switcher.h
@@ -12,6 +12,6 @@
 #ifndef ASM_BL_SWITCHER_H
 #define ASM_BL_SWITCHER_H
 
-void bL_switch_request(unsigned int cpu, unsigned int new_cluster_id);
+int bL_switch_request(unsigned int cpu, unsigned int new_cluster_id);
 
 #endif
-- 
cgit 


From c052de2693498bee6ff2e1b5bcd32309c4f8780b Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Tue, 27 Nov 2012 15:55:33 -0500
Subject: ARM: bL_switcher: simplify stack isolation

We now have a dedicated thread for each logical CPU.  That's plenty
of stack space for our needs.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
 arch/arm/common/bL_switcher.c | 23 ++++++++---------------
 1 file changed, 8 insertions(+), 15 deletions(-)

diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index 407c4cc64c0b..4caca71c906f 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -53,12 +53,6 @@ static void bL_do_switch(void *_unused)
 {
 	unsigned mpidr, cpuid, clusterid, ob_cluster, ib_cluster;
 
-	/*
-	 * We now have a piece of stack borrowed from the init task's.
-	 * Let's also switch to init_mm right away to match it.
-	 */
-	cpu_switch_mm(init_mm.pgd, &init_mm);
-
 	pr_debug("%s\n", __func__);
 
 	mpidr = read_mpidr();
@@ -93,22 +87,21 @@ static void bL_do_switch(void *_unused)
 }
 
 /*
- * Stack isolation.  To ensure 'current' remains valid, we just borrow
- * a slice of the init/idle task which should be fairly lightly used.
- * The borrowed area starts just above the thread_info structure located
- * at the very bottom of the stack, aligned to a cache line.
+ * Stack isolation.  To ensure 'current' remains valid, we just use another
+ * piece of our thread's stack space which should be fairly lightly used.
+ * The selected area starts just above the thread_info structure located
+ * at the very bottom of the stack, aligned to a cache line, and indexed
+ * with the cluster number.
  */
-#define STACK_SIZE 256
+#define STACK_SIZE 512
 extern void call_with_stack(void (*fn)(void *), void *arg, void *sp);
 static int bL_switchpoint(unsigned long _arg)
 {
 	unsigned int mpidr = read_mpidr();
-	unsigned int cpuid = MPIDR_AFFINITY_LEVEL(mpidr, 0);
 	unsigned int clusterid = MPIDR_AFFINITY_LEVEL(mpidr, 1);
-	unsigned int cpu_index = cpuid + clusterid * MAX_CPUS_PER_CLUSTER;
-	void *stack = &init_thread_info + 1;
+	void *stack = current_thread_info() + 1;
 	stack = PTR_ALIGN(stack, L1_CACHE_BYTES);
-	stack += cpu_index * STACK_SIZE + STACK_SIZE;
+	stack += clusterid * STACK_SIZE + STACK_SIZE;
 	call_with_stack(bL_do_switch, (void *)_arg, stack);
 	BUG();
 }
-- 
cgit 


From 9797a0e95ead7bfe52260c369ee9fe6ba445afaf Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Wed, 21 Nov 2012 11:53:27 -0500
Subject: ARM: bL_switcher: hot-unplug half of the available CPUs

In a regular kernel configuration, all the CPUs are initially available.
But the switcher execution model uses half of them at any time.  Instead
of hacking the DTB to remove half of the CPUs, let's remove them at
run time and make sure we still have a working switcher configuration.
This way, the same DTB can be used whether or not the switcher is used.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
 arch/arm/common/bL_switcher.c | 78 ++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 77 insertions(+), 1 deletion(-)

diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index 4caca71c906f..50e95d894e35 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -289,18 +289,94 @@ int bL_switch_request(unsigned int cpu, unsigned int new_cluster_id)
 }
 EXPORT_SYMBOL_GPL(bL_switch_request);
 
+/*
+ * Activation and configuration code.
+ */
+
+static cpumask_t bL_switcher_removed_logical_cpus;
+
+static void __init bL_switcher_restore_cpus(void)
+{
+	int i;
+
+	for_each_cpu(i, &bL_switcher_removed_logical_cpus)
+		cpu_up(i);
+}
+
+static int __init bL_switcher_halve_cpus(void)
+{
+	int cpu, cluster, i, ret;
+	cpumask_t cluster_mask[2], common_mask;
+
+	cpumask_clear(&bL_switcher_removed_logical_cpus);
+	cpumask_clear(&cluster_mask[0]);
+	cpumask_clear(&cluster_mask[1]);
+
+	for_each_online_cpu(i) {
+		cpu = cpu_logical_map(i) & 0xff;
+		cluster = (cpu_logical_map(i) >> 8) & 0xff;
+		if (cluster >= 2) {
+			pr_err("%s: only dual cluster systems are supported\n", __func__);
+			return -EINVAL;
+		}
+		cpumask_set_cpu(cpu, &cluster_mask[cluster]);
+	}
+
+	if (!cpumask_and(&common_mask, &cluster_mask[0], &cluster_mask[1])) {
+		pr_err("%s: no common set of CPUs\n", __func__);
+		return -EINVAL;
+	}
+
+	for_each_online_cpu(i) {
+		cpu = cpu_logical_map(i) & 0xff;
+		cluster = (cpu_logical_map(i) >> 8) & 0xff;
+
+		if (cpumask_test_cpu(cpu, &common_mask)) {
+			/*
+			 * We keep only those logical CPUs which number
+			 * is equal to their physical CPU number. This is
+			 * not perfect but good enough for now.
+			 */
+			if (cpu == i)
+				continue;
+		}
+
+		ret = cpu_down(i);
+		if (ret) {
+			bL_switcher_restore_cpus();
+			return ret;
+		}
+		cpumask_set_cpu(i, &bL_switcher_removed_logical_cpus);
+	}
+
+	return 0;
+}
+
 static int __init bL_switcher_init(void)
 {
-	int cpu;
+	int cpu, ret;
 
 	pr_info("big.LITTLE switcher initializing\n");
 
+	if (MAX_NR_CLUSTERS != 2) {
+		pr_err("%s: only dual cluster systems are supported\n", __func__);
+		return -EINVAL;
+	}
+
+	cpu_hotplug_driver_lock();
+	ret = bL_switcher_halve_cpus();
+	if (ret) {
+		cpu_hotplug_driver_unlock();
+		return ret;
+	}
+
 	for_each_online_cpu(cpu) {
 		struct bL_thread *t = &bL_threads[cpu];
 		init_waitqueue_head(&t->wq);
 		t->wanted_cluster = -1;
 		t->task = bL_switcher_thread_create(cpu, t);
 	}
+	cpu_hotplug_driver_unlock();
 
 	pr_info("big.LITTLE switcher initialized\n");
 	return 0;
-- 
cgit 


From ed96762e3241f57aa812977cf1920d3ee0363f4d Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Thu, 5 Jul 2012 21:33:26 -0400
Subject: ARM: bL_switcher: do not hardcode GIC IDs in the code

Currently, GIC IDs are hardcoded making the code dependent on the 4+4 b.L
configuration.  Let's allow for GIC IDs to be discovered upon switcher
initialization to support other b.L configurations such as the 1+1 one,
or 2+3 as on the VExpress TC2.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
 arch/arm/common/bL_switcher.c   | 14 +++++++++++++-
 drivers/irqchip/irq-gic.c       | 21 +++++++++++++++++++++
 include/linux/irqchip/arm-gic.h |  1 +
 3 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index 50e95d894e35..1c2e5bcfb1f7 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -110,6 +110,8 @@ static int bL_switchpoint(unsigned long _arg)
  * Generic switcher interface
  */
 
+static unsigned int bL_gic_id[MAX_CPUS_PER_CLUSTER][MAX_NR_CLUSTERS];
+
 /*
  * bL_switch_to - Switch to a specific cluster for the current CPU
  * @new_cluster_id: the ID of the cluster to switch to.
@@ -159,7 +161,7 @@ static int bL_switch_to(unsigned int new_cluster_id)
 	this_cpu = smp_processor_id();
 
 	/* redirect GIC's SGIs to our counterpart */
-	gic_migrate_target(cpuid + ib_cluster*4);
+	gic_migrate_target(bL_gic_id[cpuid][ib_cluster]);
 
 	/*
 	 * Raise a SGI on the inbound CPU to make sure it doesn't stall
@@ -332,6 +334,16 @@ static int __init bL_switcher_halve_cpus(void)
 		cluster = (cpu_logical_map(i) >> 8) & 0xff;
 
 		if (cpumask_test_cpu(cpu, &common_mask)) {
+			/* Let's take note of the GIC ID for this CPU */
+			int gic_id = gic_get_cpu_id(i);
+			if (gic_id < 0) {
+				pr_err("%s: bad GIC ID for CPU %d\n", __func__, i);
+				return -EINVAL;
+			}
+			bL_gic_id[cpu][cluster] = gic_id;
+			pr_info("GIC ID for CPU %u cluster %u is %u\n",
+				cpu, cluster, gic_id);
+
 			/*
 			 * We keep only those logical CPUs which number
 			 * is equal to their physical CPU number. This is
diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 268874ac75e6..3862cb54c714 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -667,6 +667,27 @@ void gic_raise_softirq(const struct cpumask *mask, unsigned int irq)
 #endif
 
 #ifdef CONFIG_BL_SWITCHER
+/*
+ * gic_get_cpu_id - get the CPU interface ID for the specified CPU
+ *
+ * @cpu: the logical CPU number to get the GIC ID for.
+ *
+ * Return the CPU interface ID for the given logical CPU number,
+ * or -1 if the CPU number is too large or the interface ID is
+ * unknown (more than one bit set).
+ */
+int gic_get_cpu_id(unsigned int cpu)
+{
+	unsigned int cpu_bit;
+
+	if (cpu >= NR_GIC_CPU_IF)
+		return -1;
+	cpu_bit = gic_cpu_map[cpu];
+	if (cpu_bit & (cpu_bit - 1))
+		return -1;
+	return __ffs(cpu_bit);
+}
+
 /*
  * gic_migrate_target - migrate IRQs to another CPU interface
  *
diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
index 40bfcac95940..2d7d47e8dfaf 100644
--- a/include/linux/irqchip/arm-gic.h
+++ b/include/linux/irqchip/arm-gic.h
@@ -75,6 +75,7 @@ static inline void gic_init(unsigned int nr, int start,
 	gic_init_bases(nr, start, dist, cpu, 0, NULL);
 }
 
+int gic_get_cpu_id(unsigned int cpu);
 void gic_migrate_target(unsigned int new_cpu_id);
 
 #endif /* __ASSEMBLY */
-- 
cgit 


From 6b7437aed1568076cefa4d42747b1515dcb848db Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Thu, 22 Nov 2012 00:05:07 -0500
Subject: ARM: bL_switcher: ability to enable and disable the switcher via
 sysfs

The /sys/kernel/bL_switcher/enable file allows to enable or disable
the switcher by writing 1 or 0 to it respectively.  It is still enabled
by default on boot.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
 arch/arm/common/bL_switcher.c | 171 +++++++++++++++++++++++++++++++++++++++---
 1 file changed, 160 insertions(+), 11 deletions(-)

diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index 1c2e5bcfb1f7..395f60f6292b 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -24,6 +24,7 @@
 #include <linux/tick.h>
 #include <linux/mm.h>
 #include <linux/string.h>
+#include <linux/sysfs.h>
 #include <linux/irqchip/arm-gic.h>
 
 #include <asm/smp_plat.h>
@@ -220,6 +221,7 @@ struct bL_thread {
 	struct task_struct *task;
 	wait_queue_head_t wq;
 	int wanted_cluster;
+	struct completion started;
 };
 
 static struct bL_thread bL_threads[NR_CPUS];
@@ -231,6 +233,7 @@ static int bL_switcher_thread(void *arg)
 	int cluster;
 
 	sched_setscheduler_nocheck(current, SCHED_FIFO, &param);
+	complete(&t->started);
 
 	do {
 		if (signal_pending(current))
@@ -246,7 +249,7 @@ static int bL_switcher_thread(void *arg)
 	return 0;
 }
 
-static struct task_struct * __init bL_switcher_thread_create(int cpu, void *arg)
+static struct task_struct *bL_switcher_thread_create(int cpu, void *arg)
 {
 	struct task_struct *task;
 
@@ -295,9 +298,11 @@ EXPORT_SYMBOL_GPL(bL_switch_request);
  * Activation and configuration code.
  */
 
+static unsigned int bL_switcher_active;
+static unsigned int bL_switcher_cpu_original_cluster[MAX_CPUS_PER_CLUSTER];
 static cpumask_t bL_switcher_removed_logical_cpus;
 
-static void __init bL_switcher_restore_cpus(void)
+static void bL_switcher_restore_cpus(void)
 {
 	int i;
 
@@ -305,7 +310,7 @@ static void __init bL_switcher_restore_cpus(void)
 		cpu_up(i);
 }
 
-static int __init bL_switcher_halve_cpus(void)
+static int bL_switcher_halve_cpus(void)
 {
 	int cpu, cluster, i, ret;
 	cpumask_t cluster_mask[2], common_mask;
@@ -349,8 +354,10 @@ static int __init bL_switcher_halve_cpus(void)
 			 * is equal to their physical CPU number. This is
 			 * not perfect but good enough for now.
 			 */
-			if (cpu == i)
+			if (cpu == i) {
+				bL_switcher_cpu_original_cluster[cpu] = cluster;
 				continue;
+			}
 		}
 
 		ret = cpu_down(i);
@@ -364,18 +371,18 @@ static int __init bL_switcher_halve_cpus(void)
 	return 0;
 }
 
-static int __init bL_switcher_init(void)
+static int bL_switcher_enable(void)
 {
 	int cpu, ret;
 
-	pr_info("big.LITTLE switcher initializing\n");
-
-	if (MAX_NR_CLUSTERS != 2) {
-		pr_err("%s: only dual cluster systems are supported\n", __func__);
-		return -EINVAL;
+	cpu_hotplug_driver_lock();
+	if (bL_switcher_active) {
+		cpu_hotplug_driver_unlock();
+		return 0;
 	}
 
-	cpu_hotplug_driver_lock();
+	pr_info("big.LITTLE switcher initializing\n");
+
 	ret = bL_switcher_halve_cpus();
 	if (ret) {
 		cpu_hotplug_driver_unlock();
@@ -385,13 +392,155 @@ static int __init bL_switcher_init(void)
 	for_each_online_cpu(cpu) {
 		struct bL_thread *t = &bL_threads[cpu];
 		init_waitqueue_head(&t->wq);
+		init_completion(&t->started);
 		t->wanted_cluster = -1;
 		t->task = bL_switcher_thread_create(cpu, t);
 	}
+
+	bL_switcher_active = 1;
 	cpu_hotplug_driver_unlock();
 
 	pr_info("big.LITTLE switcher initialized\n");
 	return 0;
 }
 
+#ifdef CONFIG_SYSFS
+
+static void bL_switcher_disable(void)
+{
+	unsigned int cpu, cluster, i;
+	struct bL_thread *t;
+	struct task_struct *task;
+
+	cpu_hotplug_driver_lock();
+	if (!bL_switcher_active) {
+		cpu_hotplug_driver_unlock();
+		return;
+	}
+	bL_switcher_active = 0;
+
+	/*
+	 * To deactivate the switcher, we must shut down the switcher
+	 * threads to prevent any other requests from being accepted.
+	 * Then, if the final cluster for given logical CPU is not the
+	 * same as the original one, we'll recreate a switcher thread
+	 * just for the purpose of switching the CPU back without any
+	 * possibility for interference from external requests.
+	 */
+	for_each_online_cpu(cpu) {
+		BUG_ON(cpu != (cpu_logical_map(cpu) & 0xff));
+		t = &bL_threads[cpu];
+		task = t->task;
+		t->task = NULL;
+		if (!task || IS_ERR(task))
+			continue;
+		kthread_stop(task);
+		/* no more switch may happen on this CPU at this point */
+		cluster = MPIDR_AFFINITY_LEVEL(cpu_logical_map(cpu), 1);
+		if (cluster == bL_switcher_cpu_original_cluster[cpu])
+			continue;
+		init_completion(&t->started);
+		t->wanted_cluster = bL_switcher_cpu_original_cluster[cpu];
+		task = bL_switcher_thread_create(cpu, t);
+		if (!IS_ERR(task)) {
+			wait_for_completion(&t->started);
+			kthread_stop(task);
+			cluster = MPIDR_AFFINITY_LEVEL(cpu_logical_map(cpu), 1);
+			if (cluster == bL_switcher_cpu_original_cluster[cpu])
+				continue;
+		}
+		/* If execution gets here, we're in trouble. */
+		pr_crit("%s: unable to restore original cluster for CPU %d\n",
+			__func__, cpu);
+		for_each_cpu(i, &bL_switcher_removed_logical_cpus) {
+			if ((cpu_logical_map(i) & 0xff) != cpu)
+				continue;
+			pr_crit("%s: CPU %d can't be restored\n",
+				__func__, i);
+			cpumask_clear_cpu(i, &bL_switcher_removed_logical_cpus);
+			break;
+		}
+	}
+
+	bL_switcher_restore_cpus();
+	cpu_hotplug_driver_unlock();
+}
+
+static ssize_t bL_switcher_active_show(struct kobject *kobj,
+		struct kobj_attribute *attr, char *buf)
+{
+	return sprintf(buf, "%u\n", bL_switcher_active);
+}
+
+static ssize_t bL_switcher_active_store(struct kobject *kobj,
+		struct kobj_attribute *attr, const char *buf, size_t count)
+{
+	int ret;
+
+	switch (buf[0]) {
+	case '0':
+		bL_switcher_disable();
+		ret = 0;
+		break;
+	case '1':
+		ret = bL_switcher_enable();
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return (ret >= 0) ? count : ret;
+}
+
+static struct kobj_attribute bL_switcher_active_attr =
+	__ATTR(active, 0644, bL_switcher_active_show, bL_switcher_active_store);
+
+static struct attribute *bL_switcher_attrs[] = {
+	&bL_switcher_active_attr.attr,
+	NULL,
+};
+
+static struct attribute_group bL_switcher_attr_group = {
+	.attrs = bL_switcher_attrs,
+};
+
+static struct kobject *bL_switcher_kobj;
+
+static int __init bL_switcher_sysfs_init(void)
+{
+	int ret;
+
+	bL_switcher_kobj = kobject_create_and_add("bL_switcher", kernel_kobj);
+	if (!bL_switcher_kobj)
+		return -ENOMEM;
+	ret = sysfs_create_group(bL_switcher_kobj, &bL_switcher_attr_group);
+	if (ret)
+		kobject_put(bL_switcher_kobj);
+	return ret;
+}
+
+#endif  /* CONFIG_SYSFS */
+
+static int __init bL_switcher_init(void)
+{
+	int ret;
+
+	if (MAX_NR_CLUSTERS != 2) {
+		pr_err("%s: only dual cluster systems are supported\n", __func__);
+		return -EINVAL;
+	}
+
+	ret = bL_switcher_enable();
+	if (ret)
+		return ret;
+
+#ifdef CONFIG_SYSFS
+	ret = bL_switcher_sysfs_init();
+	if (ret)
+		pr_err("%s: unable to create sysfs entry\n", __func__);
+#endif
+
+	return 0;
+}
+
 late_initcall(bL_switcher_init);
-- 
cgit 


From c4821c0575a3b1bf26f100230dc2938297d7043b Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Thu, 22 Nov 2012 13:33:35 -0500
Subject: ARM: bL_switcher: add kernel cmdline param to disable the switcher on
 boot

By adding no_bL_switcher to the kernel cmdline string, the switcher
won't be activated automatically at boot time.  It is still possible
to activate it later with:

	echo 1 > /sys/kernel/bL_switcher/active

Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
 arch/arm/common/bL_switcher.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index 395f60f6292b..cec825ef392b 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -26,6 +26,7 @@
 #include <linux/string.h>
 #include <linux/sysfs.h>
 #include <linux/irqchip/arm-gic.h>
+#include <linux/moduleparam.h>
 
 #include <asm/smp_plat.h>
 #include <asm/suspend.h>
@@ -521,6 +522,9 @@ static int __init bL_switcher_sysfs_init(void)
 
 #endif  /* CONFIG_SYSFS */
 
+static bool no_bL_switcher;
+core_param(no_bL_switcher, no_bL_switcher, bool, 0644);
+
 static int __init bL_switcher_init(void)
 {
 	int ret;
@@ -530,9 +534,11 @@ static int __init bL_switcher_init(void)
 		return -EINVAL;
 	}
 
-	ret = bL_switcher_enable();
-	if (ret)
-		return ret;
+	if (!no_bL_switcher) {
+		ret = bL_switcher_enable();
+		if (ret)
+			return ret;
+	}
 
 #ifdef CONFIG_SYSFS
 	ret = bL_switcher_sysfs_init();
-- 
cgit 


From 87d8b9eb7eb6669aad6435a51e9862362141ba76 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 18 Jul 2013 16:21:14 -0700
Subject: clocksource: Extract max nsec calculation into separate function

We need to calculate the same number in the clocksource code and
the sched_clock code, so extract this code into its own function.
We also drop the min_t and just use min() because the two types
are the same.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 include/linux/clocksource.h |  2 ++
 kernel/time/clocksource.c   | 45 ++++++++++++++++++++++++++++++---------------
 2 files changed, 32 insertions(+), 15 deletions(-)

diff --git a/include/linux/clocksource.h b/include/linux/clocksource.h
index dbbf8aa7731b..67301a405712 100644
--- a/include/linux/clocksource.h
+++ b/include/linux/clocksource.h
@@ -292,6 +292,8 @@ extern void clocksource_resume(void);
 extern struct clocksource * __init __weak clocksource_default_clock(void);
 extern void clocksource_mark_unstable(struct clocksource *cs);
 
+extern u64
+clocks_calc_max_nsecs(u32 mult, u32 shift, u32 maxadj, u64 mask);
 extern void
 clocks_calc_mult_shift(u32 *mult, u32 *shift, u32 from, u32 to, u32 minsec);
 
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 50a8736757f3..637a14af6c21 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -537,40 +537,55 @@ static u32 clocksource_max_adjustment(struct clocksource *cs)
 }
 
 /**
- * clocksource_max_deferment - Returns max time the clocksource can be deferred
- * @cs:         Pointer to clocksource
- *
+ * clocks_calc_max_nsecs - Returns maximum nanoseconds that can be converted
+ * @mult:	cycle to nanosecond multiplier
+ * @shift:	cycle to nanosecond divisor (power of two)
+ * @maxadj:	maximum adjustment value to mult (~11%)
+ * @mask:	bitmask for two's complement subtraction of non 64 bit counters
  */
-static u64 clocksource_max_deferment(struct clocksource *cs)
+u64 clocks_calc_max_nsecs(u32 mult, u32 shift, u32 maxadj, u64 mask)
 {
 	u64 max_nsecs, max_cycles;
 
 	/*
 	 * Calculate the maximum number of cycles that we can pass to the
 	 * cyc2ns function without overflowing a 64-bit signed result. The
-	 * maximum number of cycles is equal to ULLONG_MAX/(cs->mult+cs->maxadj)
+	 * maximum number of cycles is equal to ULLONG_MAX/(mult+maxadj)
 	 * which is equivalent to the below.
-	 * max_cycles < (2^63)/(cs->mult + cs->maxadj)
-	 * max_cycles < 2^(log2((2^63)/(cs->mult + cs->maxadj)))
-	 * max_cycles < 2^(log2(2^63) - log2(cs->mult + cs->maxadj))
-	 * max_cycles < 2^(63 - log2(cs->mult + cs->maxadj))
-	 * max_cycles < 1 << (63 - log2(cs->mult + cs->maxadj))
+	 * max_cycles < (2^63)/(mult + maxadj)
+	 * max_cycles < 2^(log2((2^63)/(mult + maxadj)))
+	 * max_cycles < 2^(log2(2^63) - log2(mult + maxadj))
+	 * max_cycles < 2^(63 - log2(mult + maxadj))
+	 * max_cycles < 1 << (63 - log2(mult + maxadj))
 	 * Please note that we add 1 to the result of the log2 to account for
 	 * any rounding errors, ensure the above inequality is satisfied and
 	 * no overflow will occur.
 	 */
-	max_cycles = 1ULL << (63 - (ilog2(cs->mult + cs->maxadj) + 1));
+	max_cycles = 1ULL << (63 - (ilog2(mult + maxadj) + 1));
 
 	/*
 	 * The actual maximum number of cycles we can defer the clocksource is
-	 * determined by the minimum of max_cycles and cs->mask.
+	 * determined by the minimum of max_cycles and mask.
 	 * Note: Here we subtract the maxadj to make sure we don't sleep for
 	 * too long if there's a large negative adjustment.
 	 */
-	max_cycles = min_t(u64, max_cycles, (u64) cs->mask);
-	max_nsecs = clocksource_cyc2ns(max_cycles, cs->mult - cs->maxadj,
-					cs->shift);
+	max_cycles = min(max_cycles, mask);
+	max_nsecs = clocksource_cyc2ns(max_cycles, mult - maxadj, shift);
+
+	return max_nsecs;
+}
+
+/**
+ * clocksource_max_deferment - Returns max time the clocksource can be deferred
+ * @cs:         Pointer to clocksource
+ *
+ */
+static u64 clocksource_max_deferment(struct clocksource *cs)
+{
+	u64 max_nsecs;
 
+	max_nsecs = clocks_calc_max_nsecs(cs->mult, cs->shift, cs->maxadj,
+					  cs->mask);
 	/*
 	 * To ensure that the clocksource does not wrap whilst we are idle,
 	 * limit the time the clocksource can be deferred by 12.5%. Please
-- 
cgit 


From 85c3d2dd15be4d577a37ffb8bbbd019fc8e3280a Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 18 Jul 2013 16:21:15 -0700
Subject: sched_clock: Use seqcount instead of rolling our own

We're going to increase the cyc value to 64 bits in the near
future. Doing that is going to break the custom seqcount
implementation in the sched_clock code because 64 bit numbers
aren't guaranteed to be atomic. Replace the cyc_copy with a
seqcount to avoid this problem.

Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 kernel/time/sched_clock.c | 27 ++++++++-------------------
 1 file changed, 8 insertions(+), 19 deletions(-)

diff --git a/kernel/time/sched_clock.c b/kernel/time/sched_clock.c
index a326f27d7f09..396f7b9dccc9 100644
--- a/kernel/time/sched_clock.c
+++ b/kernel/time/sched_clock.c
@@ -14,11 +14,12 @@
 #include <linux/syscore_ops.h>
 #include <linux/timer.h>
 #include <linux/sched_clock.h>
+#include <linux/seqlock.h>
 
 struct clock_data {
 	u64 epoch_ns;
 	u32 epoch_cyc;
-	u32 epoch_cyc_copy;
+	seqcount_t seq;
 	unsigned long rate;
 	u32 mult;
 	u32 shift;
@@ -54,23 +55,16 @@ static unsigned long long notrace sched_clock_32(void)
 	u64 epoch_ns;
 	u32 epoch_cyc;
 	u32 cyc;
+	unsigned long seq;
 
 	if (cd.suspended)
 		return cd.epoch_ns;
 
-	/*
-	 * Load the epoch_cyc and epoch_ns atomically.  We do this by
-	 * ensuring that we always write epoch_cyc, epoch_ns and
-	 * epoch_cyc_copy in strict order, and read them in strict order.
-	 * If epoch_cyc and epoch_cyc_copy are not equal, then we're in
-	 * the middle of an update, and we should repeat the load.
-	 */
 	do {
+		seq = read_seqcount_begin(&cd.seq);
 		epoch_cyc = cd.epoch_cyc;
-		smp_rmb();
 		epoch_ns = cd.epoch_ns;
-		smp_rmb();
-	} while (epoch_cyc != cd.epoch_cyc_copy);
+	} while (read_seqcount_retry(&cd.seq, seq));
 
 	cyc = read_sched_clock();
 	cyc = (cyc - epoch_cyc) & sched_clock_mask;
@@ -90,16 +84,12 @@ static void notrace update_sched_clock(void)
 	ns = cd.epoch_ns +
 		cyc_to_ns((cyc - cd.epoch_cyc) & sched_clock_mask,
 			  cd.mult, cd.shift);
-	/*
-	 * Write epoch_cyc and epoch_ns in a way that the update is
-	 * detectable in cyc_to_fixed_sched_clock().
-	 */
+
 	raw_local_irq_save(flags);
-	cd.epoch_cyc_copy = cyc;
-	smp_wmb();
+	write_seqcount_begin(&cd.seq);
 	cd.epoch_ns = ns;
-	smp_wmb();
 	cd.epoch_cyc = cyc;
+	write_seqcount_end(&cd.seq);
 	raw_local_irq_restore(flags);
 }
 
@@ -195,7 +185,6 @@ static int sched_clock_suspend(void)
 static void sched_clock_resume(void)
 {
 	cd.epoch_cyc = read_sched_clock();
-	cd.epoch_cyc_copy = cd.epoch_cyc;
 	cd.suspended = false;
 }
 
-- 
cgit 


From a08ca5d1089da03724f96fa0870c64968e66765b Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 18 Jul 2013 16:21:16 -0700
Subject: sched_clock: Use an hrtimer instead of timer

In the next patch we're going to increase the number of bits that
the generic sched_clock can handle to be greater than 32. With
more than 32 bits the wraparound time can be larger than what can
fit into the units that msecs_to_jiffies takes (unsigned int).
Luckily, the wraparound is initially calculated in nanoseconds
which we can easily use with hrtimers, so switch to using an
hrtimer.

Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
[jstultz: Fixup hrtimer intitialization order issue]
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 kernel/time/sched_clock.c | 38 +++++++++++++++++++++-----------------
 1 file changed, 21 insertions(+), 17 deletions(-)

diff --git a/kernel/time/sched_clock.c b/kernel/time/sched_clock.c
index 396f7b9dccc9..c018ffc59937 100644
--- a/kernel/time/sched_clock.c
+++ b/kernel/time/sched_clock.c
@@ -8,15 +8,17 @@
 #include <linux/clocksource.h>
 #include <linux/init.h>
 #include <linux/jiffies.h>
+#include <linux/ktime.h>
 #include <linux/kernel.h>
 #include <linux/moduleparam.h>
 #include <linux/sched.h>
 #include <linux/syscore_ops.h>
-#include <linux/timer.h>
+#include <linux/hrtimer.h>
 #include <linux/sched_clock.h>
 #include <linux/seqlock.h>
 
 struct clock_data {
+	ktime_t wrap_kt;
 	u64 epoch_ns;
 	u32 epoch_cyc;
 	seqcount_t seq;
@@ -26,8 +28,7 @@ struct clock_data {
 	bool suspended;
 };
 
-static void sched_clock_poll(unsigned long wrap_ticks);
-static DEFINE_TIMER(sched_clock_timer, sched_clock_poll, 0, 0);
+static struct hrtimer sched_clock_timer;
 static int irqtime = -1;
 
 core_param(irqtime, irqtime, int, 0400);
@@ -93,15 +94,16 @@ static void notrace update_sched_clock(void)
 	raw_local_irq_restore(flags);
 }
 
-static void sched_clock_poll(unsigned long wrap_ticks)
+static enum hrtimer_restart sched_clock_poll(struct hrtimer *hrt)
 {
-	mod_timer(&sched_clock_timer, round_jiffies(jiffies + wrap_ticks));
 	update_sched_clock();
+	hrtimer_forward_now(hrt, cd.wrap_kt);
+	return HRTIMER_RESTART;
 }
 
 void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate)
 {
-	unsigned long r, w;
+	unsigned long r;
 	u64 res, wrap;
 	char r_unit;
 
@@ -129,19 +131,13 @@ void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate)
 
 	/* calculate how many ns until we wrap */
 	wrap = cyc_to_ns((1ULL << bits) - 1, cd.mult, cd.shift);
-	do_div(wrap, NSEC_PER_MSEC);
-	w = wrap;
+	cd.wrap_kt = ns_to_ktime(wrap - (wrap >> 3));
 
 	/* calculate the ns resolution of this counter */
 	res = cyc_to_ns(1ULL, cd.mult, cd.shift);
-	pr_info("sched_clock: %u bits at %lu%cHz, resolution %lluns, wraps every %lums\n",
-		bits, r, r_unit, res, w);
+	pr_info("sched_clock: %u bits at %lu%cHz, resolution %lluns, wraps every %lluns\n",
+		bits, r, r_unit, res, wrap);
 
-	/*
-	 * Start the timer to keep sched_clock() properly updated and
-	 * sets the initial epoch.
-	 */
-	sched_clock_timer.data = msecs_to_jiffies(w - (w / 10));
 	update_sched_clock();
 
 	/*
@@ -172,12 +168,20 @@ void __init sched_clock_postinit(void)
 	if (read_sched_clock == jiffy_sched_clock_read)
 		setup_sched_clock(jiffy_sched_clock_read, 32, HZ);
 
-	sched_clock_poll(sched_clock_timer.data);
+	update_sched_clock();
+
+	/*
+	 * Start the timer to keep sched_clock() properly updated and
+	 * sets the initial epoch.
+	 */
+	hrtimer_init(&sched_clock_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+	sched_clock_timer.function = sched_clock_poll;
+	hrtimer_start(&sched_clock_timer, cd.wrap_kt, HRTIMER_MODE_REL);
 }
 
 static int sched_clock_suspend(void)
 {
-	sched_clock_poll(sched_clock_timer.data);
+	sched_clock_poll(&sched_clock_timer);
 	cd.suspended = true;
 	return 0;
 }
-- 
cgit 


From e7e3ff1bfe9c42ee31172e9afdc0383a9e595e29 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 18 Jul 2013 16:21:17 -0700
Subject: sched_clock: Add support for >32 bit sched_clock

The ARM architected system counter has at least 56 usable bits.
Add support for counters with more than 32 bits to the generic
sched_clock implementation so we can increase the time between
wakeups due to dealing with wrap-around on these devices while
benefiting from the irqtime accounting and suspend/resume
handling that the generic sched_clock code already has. On my
system using 56 bits over 32 bits changes the wraparound time
from a few minutes to an hour. For faster running counters (GHz
range) this is even more important because we may not be able to
execute the timer in time to deal with the wraparound if only 32
bits are used.

We choose a maxsec value of 3600 seconds because we assume no
system will go idle for more than an hour. In the future we may
need to increase this value.

Note: All users should switch over to the 64-bit read function so
we can remove setup_sched_clock() in favor of sched_clock_register().

Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 include/linux/sched_clock.h |  2 ++
 kernel/time/sched_clock.c   | 46 +++++++++++++++++++++++++++++++--------------
 2 files changed, 34 insertions(+), 14 deletions(-)

diff --git a/include/linux/sched_clock.h b/include/linux/sched_clock.h
index fa7922c80a41..eca7abeb86fc 100644
--- a/include/linux/sched_clock.h
+++ b/include/linux/sched_clock.h
@@ -15,6 +15,8 @@ static inline void sched_clock_postinit(void) { }
 #endif
 
 extern void setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate);
+extern void sched_clock_register(u64 (*read)(void), int bits,
+				 unsigned long rate);
 
 extern unsigned long long (*sched_clock_func)(void);
 
diff --git a/kernel/time/sched_clock.c b/kernel/time/sched_clock.c
index c018ffc59937..f388baeaf2b6 100644
--- a/kernel/time/sched_clock.c
+++ b/kernel/time/sched_clock.c
@@ -16,11 +16,12 @@
 #include <linux/hrtimer.h>
 #include <linux/sched_clock.h>
 #include <linux/seqlock.h>
+#include <linux/bitops.h>
 
 struct clock_data {
 	ktime_t wrap_kt;
 	u64 epoch_ns;
-	u32 epoch_cyc;
+	u64 epoch_cyc;
 	seqcount_t seq;
 	unsigned long rate;
 	u32 mult;
@@ -37,14 +38,25 @@ static struct clock_data cd = {
 	.mult	= NSEC_PER_SEC / HZ,
 };
 
-static u32 __read_mostly sched_clock_mask = 0xffffffff;
+static u64 __read_mostly sched_clock_mask;
 
-static u32 notrace jiffy_sched_clock_read(void)
+static u64 notrace jiffy_sched_clock_read(void)
 {
-	return (u32)(jiffies - INITIAL_JIFFIES);
+	/*
+	 * We don't need to use get_jiffies_64 on 32-bit arches here
+	 * because we register with BITS_PER_LONG
+	 */
+	return (u64)(jiffies - INITIAL_JIFFIES);
+}
+
+static u32 __read_mostly (*read_sched_clock_32)(void);
+
+static u64 notrace read_sched_clock_32_wrapper(void)
+{
+	return read_sched_clock_32();
 }
 
-static u32 __read_mostly (*read_sched_clock)(void) = jiffy_sched_clock_read;
+static u64 __read_mostly (*read_sched_clock)(void) = jiffy_sched_clock_read;
 
 static inline u64 notrace cyc_to_ns(u64 cyc, u32 mult, u32 shift)
 {
@@ -54,8 +66,8 @@ static inline u64 notrace cyc_to_ns(u64 cyc, u32 mult, u32 shift)
 static unsigned long long notrace sched_clock_32(void)
 {
 	u64 epoch_ns;
-	u32 epoch_cyc;
-	u32 cyc;
+	u64 epoch_cyc;
+	u64 cyc;
 	unsigned long seq;
 
 	if (cd.suspended)
@@ -78,7 +90,7 @@ static unsigned long long notrace sched_clock_32(void)
 static void notrace update_sched_clock(void)
 {
 	unsigned long flags;
-	u32 cyc;
+	u64 cyc;
 	u64 ns;
 
 	cyc = read_sched_clock();
@@ -101,7 +113,8 @@ static enum hrtimer_restart sched_clock_poll(struct hrtimer *hrt)
 	return HRTIMER_RESTART;
 }
 
-void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate)
+void __init sched_clock_register(u64 (*read)(void), int bits,
+				 unsigned long rate)
 {
 	unsigned long r;
 	u64 res, wrap;
@@ -110,14 +123,13 @@ void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate)
 	if (cd.rate > rate)
 		return;
 
-	BUG_ON(bits > 32);
 	WARN_ON(!irqs_disabled());
 	read_sched_clock = read;
-	sched_clock_mask = (1 << bits) - 1;
+	sched_clock_mask = CLOCKSOURCE_MASK(bits);
 	cd.rate = rate;
 
 	/* calculate the mult/shift to convert counter ticks to ns. */
-	clocks_calc_mult_shift(&cd.mult, &cd.shift, rate, NSEC_PER_SEC, 0);
+	clocks_calc_mult_shift(&cd.mult, &cd.shift, rate, NSEC_PER_SEC, 3600);
 
 	r = rate;
 	if (r >= 4000000) {
@@ -130,7 +142,7 @@ void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate)
 		r_unit = ' ';
 
 	/* calculate how many ns until we wrap */
-	wrap = cyc_to_ns((1ULL << bits) - 1, cd.mult, cd.shift);
+	wrap = clocks_calc_max_nsecs(cd.mult, cd.shift, 0, sched_clock_mask);
 	cd.wrap_kt = ns_to_ktime(wrap - (wrap >> 3));
 
 	/* calculate the ns resolution of this counter */
@@ -152,6 +164,12 @@ void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate)
 	pr_debug("Registered %pF as sched_clock source\n", read);
 }
 
+void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate)
+{
+	read_sched_clock_32 = read;
+	sched_clock_register(read_sched_clock_32_wrapper, bits, rate);
+}
+
 unsigned long long __read_mostly (*sched_clock_func)(void) = sched_clock_32;
 
 unsigned long long notrace sched_clock(void)
@@ -166,7 +184,7 @@ void __init sched_clock_postinit(void)
 	 * make it the final one one.
 	 */
 	if (read_sched_clock == jiffy_sched_clock_read)
-		setup_sched_clock(jiffy_sched_clock_read, 32, HZ);
+		sched_clock_register(jiffy_sched_clock_read, BITS_PER_LONG, HZ);
 
 	update_sched_clock();
 
-- 
cgit 


From 18952f20fadef0a5e099f5c4cac34b97644ccc35 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 18 Jul 2013 16:21:20 -0700
Subject: clocksource: bcm2835: Switch to sched_clock_register()

The 32 bit sched_clock interface now supports 64 bits. Upgrade to
the 64 bit function to allow us to remove the 32 bit registration
interface.

Cc: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 drivers/clocksource/bcm2835_timer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clocksource/bcm2835_timer.c b/drivers/clocksource/bcm2835_timer.c
index 07ea7ce900dc..26ed331b1aad 100644
--- a/drivers/clocksource/bcm2835_timer.c
+++ b/drivers/clocksource/bcm2835_timer.c
@@ -49,7 +49,7 @@ struct bcm2835_timer {
 
 static void __iomem *system_clock __read_mostly;
 
-static u32 notrace bcm2835_sched_read(void)
+static u64 notrace bcm2835_sched_read(void)
 {
 	return readl_relaxed(system_clock);
 }
@@ -110,7 +110,7 @@ static void __init bcm2835_timer_init(struct device_node *node)
 		panic("Can't read clock-frequency");
 
 	system_clock = base + REG_COUNTER_LO;
-	setup_sched_clock(bcm2835_sched_read, 32, freq);
+	sched_clock_register(bcm2835_sched_read, 32, freq);
 
 	clocksource_mmio_init(base + REG_COUNTER_LO, node->name,
 		freq, 300, 32, clocksource_mmio_readl_up);
-- 
cgit 


From 5602d7c808aa99230ab1ef1598e2425cf2acedc5 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 18 Jul 2013 16:21:21 -0700
Subject: clocksource: dbx500-prcmu: Switch to sched_clock_register()

The 32 bit sched_clock interface now supports 64 bits. Upgrade to
the 64 bit function to allow us to remove the 32 bit registration
interface.

Cc: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 drivers/clocksource/clksrc-dbx500-prcmu.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/clocksource/clksrc-dbx500-prcmu.c b/drivers/clocksource/clksrc-dbx500-prcmu.c
index a9fd4ad25674..b375106844d8 100644
--- a/drivers/clocksource/clksrc-dbx500-prcmu.c
+++ b/drivers/clocksource/clksrc-dbx500-prcmu.c
@@ -53,7 +53,7 @@ static struct clocksource clocksource_dbx500_prcmu = {
 
 #ifdef CONFIG_CLKSRC_DBX500_PRCMU_SCHED_CLOCK
 
-static u32 notrace dbx500_prcmu_sched_clock_read(void)
+static u64 notrace dbx500_prcmu_sched_clock_read(void)
 {
 	if (unlikely(!clksrc_dbx500_timer_base))
 		return 0;
@@ -81,8 +81,7 @@ void __init clksrc_dbx500_prcmu_init(void __iomem *base)
 		       clksrc_dbx500_timer_base + PRCMU_TIMER_REF);
 	}
 #ifdef CONFIG_CLKSRC_DBX500_PRCMU_SCHED_CLOCK
-	setup_sched_clock(dbx500_prcmu_sched_clock_read,
-			 32, RATE_32K);
+	sched_clock_register(dbx500_prcmu_sched_clock_read, 32, RATE_32K);
 #endif
 	clocksource_register_hz(&clocksource_dbx500_prcmu, RATE_32K);
 }
-- 
cgit 


From fa8296ae62364d80bb82c4c011469ae3e423d509 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 18 Jul 2013 16:21:22 -0700
Subject: clocksource: dw_apb_timer_of: Switch to sched_clock_register()

The 32 bit sched_clock interface now supports 64 bits. Upgrade to
the 64 bit function to allow us to remove the 32 bit registration
interface.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 drivers/clocksource/dw_apb_timer_of.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clocksource/dw_apb_timer_of.c b/drivers/clocksource/dw_apb_timer_of.c
index 4cbae4f762b1..003b2309f463 100644
--- a/drivers/clocksource/dw_apb_timer_of.c
+++ b/drivers/clocksource/dw_apb_timer_of.c
@@ -106,7 +106,7 @@ static void add_clocksource(struct device_node *source_timer)
 	sched_rate = rate;
 }
 
-static u32 read_sched_clock(void)
+static u64 read_sched_clock(void)
 {
 	return __raw_readl(sched_io_base);
 }
@@ -128,7 +128,7 @@ static void init_sched_clock(void)
 		of_node_put(sched_timer);
 	}
 
-	setup_sched_clock(read_sched_clock, 32, sched_rate);
+	sched_clock_register(read_sched_clock, 32, sched_rate);
 }
 
 static int num_called;
-- 
cgit 


From fcfca6ef6a35690648de6529b607674d4132b10e Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 18 Jul 2013 16:21:23 -0700
Subject: clocksource: mxs_timer: Switch to sched_clock_register()

The 32 bit sched_clock interface now supports 64 bits. Upgrade to
the 64 bit function to allow us to remove the 32 bit registration
interface.

Cc: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 drivers/clocksource/mxs_timer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clocksource/mxs_timer.c b/drivers/clocksource/mxs_timer.c
index 0f5e65f74dc3..445b68a01dc5 100644
--- a/drivers/clocksource/mxs_timer.c
+++ b/drivers/clocksource/mxs_timer.c
@@ -222,7 +222,7 @@ static struct clocksource clocksource_mxs = {
 	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
-static u32 notrace mxs_read_sched_clock_v2(void)
+static u64 notrace mxs_read_sched_clock_v2(void)
 {
 	return ~readl_relaxed(mxs_timrot_base + HW_TIMROT_RUNNING_COUNTn(1));
 }
@@ -236,7 +236,7 @@ static int __init mxs_clocksource_init(struct clk *timer_clk)
 	else {
 		clocksource_mmio_init(mxs_timrot_base + HW_TIMROT_RUNNING_COUNTn(1),
 			"mxs_timer", c, 200, 32, clocksource_mmio_readl_down);
-		setup_sched_clock(mxs_read_sched_clock_v2, 32, c);
+		sched_clock_register(mxs_read_sched_clock_v2, 32, c);
 	}
 
 	return 0;
-- 
cgit 


From e25bc5f5ad192cf8782db64acb83962a0b27c4e0 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 18 Jul 2013 16:21:24 -0700
Subject: clocksource: nomadik: Switch to sched_clock_register()

The 32 bit sched_clock interface now supports 64 bits. Upgrade to
the 64 bit function to allow us to remove the 32 bit registration
interface.

Cc: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 drivers/clocksource/nomadik-mtu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clocksource/nomadik-mtu.c b/drivers/clocksource/nomadik-mtu.c
index 7d2c2c56f73c..2242cd3d618d 100644
--- a/drivers/clocksource/nomadik-mtu.c
+++ b/drivers/clocksource/nomadik-mtu.c
@@ -76,7 +76,7 @@ static struct delay_timer mtu_delay_timer;
  * local implementation which uses the clocksource to get some
  * better resolution when scheduling the kernel.
  */
-static u32 notrace nomadik_read_sched_clock(void)
+static u64 notrace nomadik_read_sched_clock(void)
 {
 	if (unlikely(!mtu_base))
 		return 0;
@@ -230,7 +230,7 @@ static void __init __nmdk_timer_init(void __iomem *base, int irq,
 		       "mtu_0");
 
 #ifdef CONFIG_CLKSRC_NOMADIK_MTU_SCHED_CLOCK
-	setup_sched_clock(nomadik_read_sched_clock, 32, rate);
+	sched_clock_register(nomadik_read_sched_clock, 32, rate);
 #endif
 
 	/* Timer 1 is used for events, register irq and clockevents */
-- 
cgit 


From 2902b30e0bd78686e7d891519dbfe2e4e43825fd Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 18 Jul 2013 16:21:25 -0700
Subject: clocksource: samsung_pwm_timer: Switch to sched_clock_register()

The 32 bit sched_clock interface now supports 64 bits. Upgrade to
the 64 bit function to allow us to remove the 32 bit registration
interface.

Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 drivers/clocksource/samsung_pwm_timer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clocksource/samsung_pwm_timer.c b/drivers/clocksource/samsung_pwm_timer.c
index 584b5472eea3..09e8bc7bc92f 100644
--- a/drivers/clocksource/samsung_pwm_timer.c
+++ b/drivers/clocksource/samsung_pwm_timer.c
@@ -310,7 +310,7 @@ static void __iomem *samsung_timer_reg(void)
  * this wraps around for now, since it is just a relative time
  * stamp. (Inspired by U300 implementation.)
  */
-static u32 notrace samsung_read_sched_clock(void)
+static u64 notrace samsung_read_sched_clock(void)
 {
 	void __iomem *reg = samsung_timer_reg();
 
@@ -337,7 +337,7 @@ static void __init samsung_clocksource_init(void)
 	samsung_time_setup(pwm.source_id, pwm.tcnt_max);
 	samsung_time_start(pwm.source_id, true);
 
-	setup_sched_clock(samsung_read_sched_clock,
+	sched_clock_register(samsung_read_sched_clock,
 						pwm.variant.bits, clock_rate);
 
 	ret = clocksource_mmio_init(reg, "samsung_clocksource_timer",
-- 
cgit 


From 35702999b1f366ed80fc4bd94bd8ebc8a1c46954 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 18 Jul 2013 16:21:26 -0700
Subject: clocksource: tegra: Switch to sched_clock_register()

The 32 bit sched_clock interface now supports 64 bits. Upgrade to
the 64 bit function to allow us to remove the 32 bit registration
interface.

Cc: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 drivers/clocksource/tegra20_timer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clocksource/tegra20_timer.c b/drivers/clocksource/tegra20_timer.c
index 93961703b887..5cff61677b6c 100644
--- a/drivers/clocksource/tegra20_timer.c
+++ b/drivers/clocksource/tegra20_timer.c
@@ -98,7 +98,7 @@ static struct clock_event_device tegra_clockevent = {
 	.set_mode	= tegra_timer_set_mode,
 };
 
-static u32 notrace tegra_read_sched_clock(void)
+static u64 notrace tegra_read_sched_clock(void)
 {
 	return timer_readl(TIMERUS_CNTR_1US);
 }
@@ -200,7 +200,7 @@ static void __init tegra20_init_timer(struct device_node *np)
 		WARN(1, "Unknown clock rate");
 	}
 
-	setup_sched_clock(tegra_read_sched_clock, 32, 1000000);
+	sched_clock_register(tegra_read_sched_clock, 32, 1000000);
 
 	if (clocksource_mmio_init(timer_reg_base + TIMERUS_CNTR_1US,
 		"timer_us", 1000000, 300, 32, clocksource_mmio_readl_up)) {
-- 
cgit 


From d9dbcbe0ea29dac15a9ca70c274fec4ef100e187 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 18 Jul 2013 16:21:27 -0700
Subject: clocksource: time-armada-370-xp: Switch to sched_clock_register()

The 32 bit sched_clock interface now supports 64 bits. Upgrade to
the 64 bit function to allow us to remove the 32 bit registration
interface.

Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 drivers/clocksource/time-armada-370-xp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clocksource/time-armada-370-xp.c b/drivers/clocksource/time-armada-370-xp.c
index efdca3263afe..2bec8dca74b6 100644
--- a/drivers/clocksource/time-armada-370-xp.c
+++ b/drivers/clocksource/time-armada-370-xp.c
@@ -71,7 +71,7 @@ static u32 ticks_per_jiffy;
 
 static struct clock_event_device __percpu **percpu_armada_370_xp_evt;
 
-static u32 notrace armada_370_xp_read_sched_clock(void)
+static u64 notrace armada_370_xp_read_sched_clock(void)
 {
 	return ~readl(timer_base + TIMER0_VAL_OFF);
 }
@@ -258,7 +258,7 @@ void __init armada_370_xp_timer_init(void)
 	/*
 	 * Set scale and timer for sched_clock.
 	 */
-	setup_sched_clock(armada_370_xp_read_sched_clock, 32, timer_clk);
+	sched_clock_register(armada_370_xp_read_sched_clock, 32, timer_clk);
 
 	/*
 	 * Setup free-running clocksource timer (interrupts
-- 
cgit 


From 130e6b25a28ff5b2421d6cae5f2bac1f5afdcfb0 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 18 Jul 2013 16:21:28 -0700
Subject: clocksource: sirf: Switch to sched_clock_register() and use 64 bits

The 32 bit sched_clock interface now supports 64 bits. Upgrade to
the 64 bit function to allow us to remove the 32 bit registration
interface and use all 64 bits of this timer.

Cc: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 drivers/clocksource/timer-prima2.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/clocksource/timer-prima2.c b/drivers/clocksource/timer-prima2.c
index ef3cfb269d8b..8a492d34ff9f 100644
--- a/drivers/clocksource/timer-prima2.c
+++ b/drivers/clocksource/timer-prima2.c
@@ -165,9 +165,9 @@ static struct irqaction sirfsoc_timer_irq = {
 };
 
 /* Overwrite weak default sched_clock with more precise one */
-static u32 notrace sirfsoc_read_sched_clock(void)
+static u64 notrace sirfsoc_read_sched_clock(void)
 {
-	return (u32)(sirfsoc_timer_read(NULL) & 0xffffffff);
+	return sirfsoc_timer_read(NULL);
 }
 
 static void __init sirfsoc_clockevent_init(void)
@@ -206,7 +206,7 @@ static void __init sirfsoc_prima2_timer_init(struct device_node *np)
 
 	BUG_ON(clocksource_register_hz(&sirfsoc_clocksource, CLOCK_TICK_RATE));
 
-	setup_sched_clock(sirfsoc_read_sched_clock, 32, CLOCK_TICK_RATE);
+	sched_clock_register(sirfsoc_read_sched_clock, 64, CLOCK_TICK_RATE);
 
 	BUG_ON(setup_irq(sirfsoc_timer_irq.irq, &sirfsoc_timer_irq));
 
-- 
cgit 


From f4e6e1ea19737077d958f2bc6c196eb579d97544 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 18 Jul 2013 16:21:29 -0700
Subject: clocksource: vf_pit_timer: Switch to sched_clock_register()

The 32 bit sched_clock interface now supports 64 bits. Upgrade to
the 64 bit function to allow us to remove the 32 bit registration
interface.

Cc: Jingchang Lu <b35083@freescale.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 drivers/clocksource/vf_pit_timer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clocksource/vf_pit_timer.c b/drivers/clocksource/vf_pit_timer.c
index 587e0202a70b..02821b06a39e 100644
--- a/drivers/clocksource/vf_pit_timer.c
+++ b/drivers/clocksource/vf_pit_timer.c
@@ -52,7 +52,7 @@ static inline void pit_irq_acknowledge(void)
 	__raw_writel(PITTFLG_TIF, clkevt_base + PITTFLG);
 }
 
-static unsigned int pit_read_sched_clock(void)
+static u64 pit_read_sched_clock(void)
 {
 	return __raw_readl(clksrc_base + PITCVAL);
 }
@@ -64,7 +64,7 @@ static int __init pit_clocksource_init(unsigned long rate)
 	__raw_writel(~0UL, clksrc_base + PITLDVAL);
 	__raw_writel(PITTCTRL_TEN, clksrc_base + PITTCTRL);
 
-	setup_sched_clock(pit_read_sched_clock, 32, rate);
+	sched_clock_register(pit_read_sched_clock, 32, rate);
 	return clocksource_mmio_init(clksrc_base + PITCVAL, "vf-pit", rate,
 			300, 32, clocksource_mmio_readl_down);
 }
-- 
cgit 


From 38c35d4f2e408c369e3030f0717d35ad443d9223 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Thu, 13 Jun 2013 23:42:46 -0400
Subject: ARM: bL_switcher: remove assumptions between logical and physical
 CPUs

Up to now, the logical CPU was somehow tied to the physical CPU number
within a cluster.  This causes problems when forcing the boot CPU to be
different from the first enumerated CPU in the device tree creating a
discrepancy between logical and physical CPU numbers.

Let's make the pairing completely independent from physical CPU numbers.

Let's keep only those logical CPUs with same initial CPU cluster to create
a uniform scheduler profile without having to modify any of the probed
topology and compute capacity data.  This has the potential to create
a non contiguous CPU numbering space when the switcher is active with
potential impact on buggy user space tools.  It is however better to fix
those tools rather than making the switcher code more intrusive.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Reviewed-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
---
 arch/arm/common/bL_switcher.c | 176 +++++++++++++++++++++++++-----------------
 1 file changed, 104 insertions(+), 72 deletions(-)

diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index cec825ef392b..0e4fb3e5e99c 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -53,21 +53,19 @@ static int read_mpidr(void)
 
 static void bL_do_switch(void *_unused)
 {
-	unsigned mpidr, cpuid, clusterid, ob_cluster, ib_cluster;
+	unsigned ib_mpidr, ib_cpu, ib_cluster;
 
 	pr_debug("%s\n", __func__);
 
-	mpidr = read_mpidr();
-	cpuid = MPIDR_AFFINITY_LEVEL(mpidr, 0);
-	clusterid = MPIDR_AFFINITY_LEVEL(mpidr, 1);
-	ob_cluster = clusterid;
-	ib_cluster = clusterid ^ 1;
+	ib_mpidr = cpu_logical_map(smp_processor_id());
+	ib_cpu = MPIDR_AFFINITY_LEVEL(ib_mpidr, 0);
+	ib_cluster = MPIDR_AFFINITY_LEVEL(ib_mpidr, 1);
 
 	/*
 	 * Our state has been saved at this point.  Let's release our
 	 * inbound CPU.
 	 */
-	mcpm_set_entry_vector(cpuid, ib_cluster, cpu_resume);
+	mcpm_set_entry_vector(ib_cpu, ib_cluster, cpu_resume);
 	sev();
 
 	/*
@@ -113,6 +111,7 @@ static int bL_switchpoint(unsigned long _arg)
  */
 
 static unsigned int bL_gic_id[MAX_CPUS_PER_CLUSTER][MAX_NR_CLUSTERS];
+static int bL_switcher_cpu_pairing[NR_CPUS];
 
 /*
  * bL_switch_to - Switch to a specific cluster for the current CPU
@@ -123,31 +122,38 @@ static unsigned int bL_gic_id[MAX_CPUS_PER_CLUSTER][MAX_NR_CLUSTERS];
  */
 static int bL_switch_to(unsigned int new_cluster_id)
 {
-	unsigned int mpidr, cpuid, clusterid, ob_cluster, ib_cluster, this_cpu;
+	unsigned int mpidr, this_cpu, that_cpu;
+	unsigned int ob_mpidr, ob_cpu, ob_cluster, ib_mpidr, ib_cpu, ib_cluster;
 	struct tick_device *tdev;
 	enum clock_event_mode tdev_mode;
 	int ret;
 
-	mpidr = read_mpidr();
-	cpuid = MPIDR_AFFINITY_LEVEL(mpidr, 0);
-	clusterid = MPIDR_AFFINITY_LEVEL(mpidr, 1);
-	ob_cluster = clusterid;
-	ib_cluster = clusterid ^ 1;
+	this_cpu = smp_processor_id();
+	ob_mpidr = read_mpidr();
+	ob_cpu = MPIDR_AFFINITY_LEVEL(ob_mpidr, 0);
+	ob_cluster = MPIDR_AFFINITY_LEVEL(ob_mpidr, 1);
+	BUG_ON(cpu_logical_map(this_cpu) != ob_mpidr);
 
-	if (new_cluster_id == clusterid)
+	if (new_cluster_id == ob_cluster)
 		return 0;
 
-	pr_debug("before switch: CPU %d in cluster %d\n", cpuid, clusterid);
+	that_cpu = bL_switcher_cpu_pairing[this_cpu];
+	ib_mpidr = cpu_logical_map(that_cpu);
+	ib_cpu = MPIDR_AFFINITY_LEVEL(ib_mpidr, 0);
+	ib_cluster = MPIDR_AFFINITY_LEVEL(ib_mpidr, 1);
+
+	pr_debug("before switch: CPU %d MPIDR %#x -> %#x\n",
+		 this_cpu, ob_mpidr, ib_mpidr);
 
 	/* Close the gate for our entry vectors */
-	mcpm_set_entry_vector(cpuid, ob_cluster, NULL);
-	mcpm_set_entry_vector(cpuid, ib_cluster, NULL);
+	mcpm_set_entry_vector(ob_cpu, ob_cluster, NULL);
+	mcpm_set_entry_vector(ib_cpu, ib_cluster, NULL);
 
 	/*
 	 * Let's wake up the inbound CPU now in case it requires some delay
 	 * to come online, but leave it gated in our entry vector code.
 	 */
-	ret = mcpm_cpu_power_up(cpuid, ib_cluster);
+	ret = mcpm_cpu_power_up(ib_cpu, ib_cluster);
 	if (ret) {
 		pr_err("%s: mcpm_cpu_power_up() returned %d\n", __func__, ret);
 		return ret;
@@ -160,10 +166,8 @@ static int bL_switch_to(unsigned int new_cluster_id)
 	local_irq_disable();
 	local_fiq_disable();
 
-	this_cpu = smp_processor_id();
-
 	/* redirect GIC's SGIs to our counterpart */
-	gic_migrate_target(bL_gic_id[cpuid][ib_cluster]);
+	gic_migrate_target(bL_gic_id[ib_cpu][ib_cluster]);
 
 	/*
 	 * Raise a SGI on the inbound CPU to make sure it doesn't stall
@@ -185,8 +189,9 @@ static int bL_switch_to(unsigned int new_cluster_id)
 	if (ret)
 		panic("%s: cpu_pm_enter() returned %d\n", __func__, ret);
 
-	/* Flip the cluster in the CPU logical map for this CPU. */
-	cpu_logical_map(this_cpu) ^= (1 << 8);
+	/* Swap the physical CPUs in the logical map for this logical CPU. */
+	cpu_logical_map(this_cpu) = ib_mpidr;
+	cpu_logical_map(that_cpu) = ob_mpidr;
 
 	/* Let's do the actual CPU switch. */
 	ret = cpu_suspend(0, bL_switchpoint);
@@ -195,10 +200,8 @@ static int bL_switch_to(unsigned int new_cluster_id)
 
 	/* We are executing on the inbound CPU at this point */
 	mpidr = read_mpidr();
-	cpuid = MPIDR_AFFINITY_LEVEL(mpidr, 0);
-	clusterid = MPIDR_AFFINITY_LEVEL(mpidr, 1);
-	pr_debug("after switch: CPU %d in cluster %d\n", cpuid, clusterid);
-	BUG_ON(clusterid != ib_cluster);
+	pr_debug("after switch: CPU %d MPIDR %#x\n", this_cpu, mpidr);
+	BUG_ON(mpidr != ib_mpidr);
 
 	mcpm_cpu_powered_up();
 
@@ -300,7 +303,7 @@ EXPORT_SYMBOL_GPL(bL_switch_request);
  */
 
 static unsigned int bL_switcher_active;
-static unsigned int bL_switcher_cpu_original_cluster[MAX_CPUS_PER_CLUSTER];
+static unsigned int bL_switcher_cpu_original_cluster[NR_CPUS];
 static cpumask_t bL_switcher_removed_logical_cpus;
 
 static void bL_switcher_restore_cpus(void)
@@ -313,52 +316,86 @@ static void bL_switcher_restore_cpus(void)
 
 static int bL_switcher_halve_cpus(void)
 {
-	int cpu, cluster, i, ret;
-	cpumask_t cluster_mask[2], common_mask;
-
-	cpumask_clear(&bL_switcher_removed_logical_cpus);
-	cpumask_clear(&cluster_mask[0]);
-	cpumask_clear(&cluster_mask[1]);
+	int i, j, cluster_0, gic_id, ret;
+	unsigned int cpu, cluster, mask;
+	cpumask_t available_cpus;
 
+	/* First pass to validate what we have */
+	mask = 0;
 	for_each_online_cpu(i) {
-		cpu = cpu_logical_map(i) & 0xff;
-		cluster = (cpu_logical_map(i) >> 8) & 0xff;
+		cpu = MPIDR_AFFINITY_LEVEL(cpu_logical_map(i), 0);
+		cluster = MPIDR_AFFINITY_LEVEL(cpu_logical_map(i), 1);
 		if (cluster >= 2) {
 			pr_err("%s: only dual cluster systems are supported\n", __func__);
 			return -EINVAL;
 		}
-		cpumask_set_cpu(cpu, &cluster_mask[cluster]);
+		if (WARN_ON(cpu >= MAX_CPUS_PER_CLUSTER))
+			return -EINVAL;
+		mask |= (1 << cluster);
 	}
-
-	if (!cpumask_and(&common_mask, &cluster_mask[0], &cluster_mask[1])) {
-		pr_err("%s: no common set of CPUs\n", __func__);
+	if (mask != 3) {
+		pr_err("%s: no CPU pairing possible\n", __func__);
 		return -EINVAL;
 	}
 
-	for_each_online_cpu(i) {
-		cpu = cpu_logical_map(i) & 0xff;
-		cluster = (cpu_logical_map(i) >> 8) & 0xff;
-
-		if (cpumask_test_cpu(cpu, &common_mask)) {
-			/* Let's take note of the GIC ID for this CPU */
-			int gic_id = gic_get_cpu_id(i);
-			if (gic_id < 0) {
-				pr_err("%s: bad GIC ID for CPU %d\n", __func__, i);
-				return -EINVAL;
-			}
-			bL_gic_id[cpu][cluster] = gic_id;
-			pr_info("GIC ID for CPU %u cluster %u is %u\n",
-				cpu, cluster, gic_id);
-
+	/*
+	 * Now let's do the pairing.  We match each CPU with another CPU
+	 * from a different cluster.  To get a uniform scheduling behavior
+	 * without fiddling with CPU topology and compute capacity data,
+	 * we'll use logical CPUs initially belonging to the same cluster.
+	 */
+	memset(bL_switcher_cpu_pairing, -1, sizeof(bL_switcher_cpu_pairing));
+	cpumask_copy(&available_cpus, cpu_online_mask);
+	cluster_0 = -1;
+	for_each_cpu(i, &available_cpus) {
+		int match = -1;
+		cluster = MPIDR_AFFINITY_LEVEL(cpu_logical_map(i), 1);
+		if (cluster_0 == -1)
+			cluster_0 = cluster;
+		if (cluster != cluster_0)
+			continue;
+		cpumask_clear_cpu(i, &available_cpus);
+		for_each_cpu(j, &available_cpus) {
+			cluster = MPIDR_AFFINITY_LEVEL(cpu_logical_map(j), 1);
 			/*
-			 * We keep only those logical CPUs which number
-			 * is equal to their physical CPU number. This is
-			 * not perfect but good enough for now.
+			 * Let's remember the last match to create "odd"
+			 * pairings on purpose in order for other code not
+			 * to assume any relation between physical and
+			 * logical CPU numbers.
 			 */
-			if (cpu == i) {
-				bL_switcher_cpu_original_cluster[cpu] = cluster;
-				continue;
-			}
+			if (cluster != cluster_0)
+				match = j;
+		}
+		if (match != -1) {
+			bL_switcher_cpu_pairing[i] = match;
+			cpumask_clear_cpu(match, &available_cpus);
+			pr_info("CPU%d paired with CPU%d\n", i, match);
+		}
+	}
+
+	/*
+	 * Now we disable the unwanted CPUs i.e. everything that has no
+	 * pairing information (that includes the pairing counterparts).
+	 */
+	cpumask_clear(&bL_switcher_removed_logical_cpus);
+	for_each_online_cpu(i) {
+		cpu = MPIDR_AFFINITY_LEVEL(cpu_logical_map(i), 0);
+		cluster = MPIDR_AFFINITY_LEVEL(cpu_logical_map(i), 1);
+
+		/* Let's take note of the GIC ID for this CPU */
+		gic_id = gic_get_cpu_id(i);
+		if (gic_id < 0) {
+			pr_err("%s: bad GIC ID for CPU %d\n", __func__, i);
+			bL_switcher_restore_cpus();
+			return -EINVAL;
+		}
+		bL_gic_id[cpu][cluster] = gic_id;
+		pr_info("GIC ID for CPU %u cluster %u is %u\n",
+			cpu, cluster, gic_id);
+
+		if (bL_switcher_cpu_pairing[i] != -1) {
+			bL_switcher_cpu_original_cluster[i] = cluster;
+			continue;
 		}
 
 		ret = cpu_down(i);
@@ -409,7 +446,7 @@ static int bL_switcher_enable(void)
 
 static void bL_switcher_disable(void)
 {
-	unsigned int cpu, cluster, i;
+	unsigned int cpu, cluster;
 	struct bL_thread *t;
 	struct task_struct *task;
 
@@ -429,7 +466,6 @@ static void bL_switcher_disable(void)
 	 * possibility for interference from external requests.
 	 */
 	for_each_online_cpu(cpu) {
-		BUG_ON(cpu != (cpu_logical_map(cpu) & 0xff));
 		t = &bL_threads[cpu];
 		task = t->task;
 		t->task = NULL;
@@ -453,14 +489,10 @@ static void bL_switcher_disable(void)
 		/* If execution gets here, we're in trouble. */
 		pr_crit("%s: unable to restore original cluster for CPU %d\n",
 			__func__, cpu);
-		for_each_cpu(i, &bL_switcher_removed_logical_cpus) {
-			if ((cpu_logical_map(i) & 0xff) != cpu)
-				continue;
-			pr_crit("%s: CPU %d can't be restored\n",
-				__func__, i);
-			cpumask_clear_cpu(i, &bL_switcher_removed_logical_cpus);
-			break;
-		}
+		pr_crit("%s: CPU %d can't be restored\n",
+			__func__, bL_switcher_cpu_pairing[cpu]);
+		cpumask_clear_cpu(bL_switcher_cpu_pairing[cpu],
+				  &bL_switcher_removed_logical_cpus);
 	}
 
 	bL_switcher_restore_cpus();
-- 
cgit 


From 272614351423ce8c37ff730efc130e5b73fe64f5 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Mon, 26 Nov 2012 22:48:55 -0500
Subject: ARM: bL_switcher: filter CPU hotplug requests when the switcher is
 active

Trying to support both the switcher and CPU hotplug at the same time
is tricky due to ambiguous semantics.  So let's at least prevent users
from messing around with those logical CPUs the switcher has removed
and those which were not active when the switcher was activated.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
 arch/arm/common/bL_switcher.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index 0e4fb3e5e99c..335ff76d4c5a 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -554,6 +554,26 @@ static int __init bL_switcher_sysfs_init(void)
 
 #endif  /* CONFIG_SYSFS */
 
+/*
+ * Veto any CPU hotplug operation on those CPUs we've removed
+ * while the switcher is active.
+ * We're just not ready to deal with that given the trickery involved.
+ */
+static int bL_switcher_hotplug_callback(struct notifier_block *nfb,
+					unsigned long action, void *hcpu)
+{
+	if (bL_switcher_active) {
+		int pairing = bL_switcher_cpu_pairing[(unsigned long)hcpu];
+		switch (action & 0xf) {
+		case CPU_UP_PREPARE:
+		case CPU_DOWN_PREPARE:
+			if (pairing == -1)
+				return NOTIFY_BAD;
+		}
+	}
+	return NOTIFY_DONE;
+}
+
 static bool no_bL_switcher;
 core_param(no_bL_switcher, no_bL_switcher, bool, 0644);
 
@@ -566,6 +586,8 @@ static int __init bL_switcher_init(void)
 		return -EINVAL;
 	}
 
+	cpu_notifier(bL_switcher_hotplug_callback, 0);
+
 	if (!no_bL_switcher) {
 		ret = bL_switcher_enable();
 		if (ret)
-- 
cgit 


From b22537c682671de97c932d5addb6b7d087352aa1 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Thu, 12 Apr 2012 03:04:28 -0400
Subject: ARM: bL_switcher: add a simple /dev user interface for debugging
 purposes

Only the basic call to aid debugging.

*** NOT FOR PRODUCTION ***

Usage:

	echo <cpuid>,<clusterid> > /dev/b.L_switcher

where <cpuid> is the logical CPU number, and <clusterid> is 0 for the
first cluster and 1 for the second cluster.

Signed-off-by: nicolas Pitre <nico@linaro.org>
---
 arch/arm/Kconfig                       |  8 ++++
 arch/arm/common/Makefile               |  1 +
 arch/arm/common/bL_switcher_dummy_if.c | 71 ++++++++++++++++++++++++++++++++++
 3 files changed, 80 insertions(+)
 create mode 100644 arch/arm/common/bL_switcher_dummy_if.c

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index ade70017fd65..cfcb0d8d6f85 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1556,6 +1556,14 @@ config BL_SWITCHER
 	  transparently handle transition between a cluster of A15's
 	  and a cluster of A7's in a big.LITTLE system.
 
+config BL_SWITCHER_DUMMY_IF
+	tristate "Simple big.LITTLE switcher user interface"
+	depends on BL_SWITCHER && DEBUG_KERNEL
+	help
+	  This is a simple and dummy char dev interface to control
+	  the big.LITTLE switcher core code.  It is meant for
+	  debugging purposes only.
+
 choice
 	prompt "Memory split"
 	default VMSPLIT_3G
diff --git a/arch/arm/common/Makefile b/arch/arm/common/Makefile
index 2586240d5a45..5c8584c4944d 100644
--- a/arch/arm/common/Makefile
+++ b/arch/arm/common/Makefile
@@ -18,3 +18,4 @@ AFLAGS_mcpm_head.o		:= -march=armv7-a
 AFLAGS_vlock.o			:= -march=armv7-a
 obj-$(CONFIG_TI_PRIV_EDMA)	+= edma.o
 obj-$(CONFIG_BL_SWITCHER)	+= bL_switcher.o
+obj-$(CONFIG_BL_SWITCHER_DUMMY_IF) += bL_switcher_dummy_if.o
diff --git a/arch/arm/common/bL_switcher_dummy_if.c b/arch/arm/common/bL_switcher_dummy_if.c
new file mode 100644
index 000000000000..3f47f1203c6b
--- /dev/null
+++ b/arch/arm/common/bL_switcher_dummy_if.c
@@ -0,0 +1,71 @@
+/*
+ * arch/arm/common/bL_switcher_dummy_if.c -- b.L switcher dummy interface
+ *
+ * Created by:	Nicolas Pitre, November 2012
+ * Copyright:	(C) 2012-2013  Linaro Limited
+ *
+ * Dummy interface to user space for debugging purpose only.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <asm/uaccess.h>
+#include <asm/bL_switcher.h>
+
+static ssize_t bL_switcher_write(struct file *file, const char __user *buf,
+			size_t len, loff_t *pos)
+{
+	unsigned char val[3];
+	unsigned int cpu, cluster;
+	int ret;
+
+	pr_debug("%s\n", __func__);
+
+	if (len < 3)
+		return -EINVAL;
+
+	if (copy_from_user(val, buf, 3))
+		return -EFAULT;
+
+	/* format: <cpu#>,<cluster#> */
+	if (val[0] < '0' || val[0] > '9' ||
+	    val[1] != ',' ||
+	    val[2] < '0' || val[2] > '1')
+		return -EINVAL;
+
+	cpu = val[0] - '0';
+	cluster = val[2] - '0';
+	ret = bL_switch_request(cpu, cluster);
+
+	return ret ? : len;
+}
+
+static const struct file_operations bL_switcher_fops = {
+	.write		= bL_switcher_write,
+	.owner	= THIS_MODULE,
+};
+
+static struct miscdevice bL_switcher_device = {
+	MISC_DYNAMIC_MINOR,
+	"b.L_switcher",
+	&bL_switcher_fops
+};
+
+static int __init bL_switcher_dummy_if_init(void)
+{
+	return misc_register(&bL_switcher_device);
+}
+
+static void __exit bL_switcher_dummy_if_exit(void)
+{
+	misc_deregister(&bL_switcher_device);
+}
+
+module_init(bL_switcher_dummy_if_init);
+module_exit(bL_switcher_dummy_if_exit);
-- 
cgit 


From c69029b179592b5bb6da3c356236b362055284a4 Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Wed, 7 Aug 2013 12:10:49 +0200
Subject: ath10k: setup peer UAPSD flag correctly

Setup UAPSD peer/peer rate flags correctly.
WMI_RC_UAPSD_FLAG is a peer rate capabilities flag
and should not be set as a peer flag.
Found during code review, doesn't fix a known
issues.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index cf2ba4d850c9..505be82e408b 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -973,7 +973,7 @@ static void ath10k_peer_assoc_h_qos_ap(struct ath10k *ar,
 			   sta->uapsd_queues, sta->max_sp);
 
 		arg->peer_flags |= WMI_PEER_APSD;
-		arg->peer_flags |= WMI_RC_UAPSD_FLAG;
+		arg->peer_rate_caps |= WMI_RC_UAPSD_FLAG;
 
 		if (sta->uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
 			uapsd |= WMI_AP_PS_UAPSD_AC3_DELIVERY_EN |
-- 
cgit 


From 57a8930aecb641b7cfabd199c2c998b13894ba74 Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Wed, 7 Aug 2013 15:17:45 +0200
Subject: ath10k: Remove qca98xx hw1.0 support

Since the firmware support is no longer available for hw1.0,
drop all code (especially workarounds) for those units.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/ce.c   | 31 +------------------------------
 drivers/net/wireless/ath/ath10k/core.c | 11 -----------
 drivers/net/wireless/ath/ath10k/hw.h   |  8 --------
 drivers/net/wireless/ath/ath10k/pci.c  | 15 ---------------
 drivers/net/wireless/ath/ath10k/pci.h  | 23 ++---------------------
 5 files changed, 3 insertions(+), 85 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index f8b969f518f8..9c9f0814bfcd 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -76,36 +76,7 @@ static inline void ath10k_ce_src_ring_write_index_set(struct ath10k *ar,
 						      u32 ce_ctrl_addr,
 						      unsigned int n)
 {
-	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	void __iomem *indicator_addr;
-
-	if (!test_bit(ATH10K_PCI_FEATURE_HW_1_0_WORKAROUND, ar_pci->features)) {
-		ath10k_pci_write32(ar, ce_ctrl_addr + SR_WR_INDEX_ADDRESS, n);
-		return;
-	}
-
-	/* workaround for QCA988x_1.0 HW CE */
-	indicator_addr = ar_pci->mem + ce_ctrl_addr + DST_WATERMARK_ADDRESS;
-
-	if (ce_ctrl_addr == ath10k_ce_base_address(CDC_WAR_DATA_CE)) {
-		iowrite32((CDC_WAR_MAGIC_STR | n), indicator_addr);
-	} else {
-		unsigned long irq_flags;
-		local_irq_save(irq_flags);
-		iowrite32(1, indicator_addr);
-
-		/*
-		 * PCIE write waits for ACK in IPQ8K, there is no
-		 * need to read back value.
-		 */
-		(void)ioread32(indicator_addr);
-		(void)ioread32(indicator_addr); /* conservative */
-
-		ath10k_pci_write32(ar, ce_ctrl_addr + SR_WR_INDEX_ADDRESS, n);
-
-		iowrite32(0, indicator_addr);
-		local_irq_restore(irq_flags);
-	}
+	ath10k_pci_write32(ar, ce_ctrl_addr + SR_WR_INDEX_ADDRESS, n);
 }
 
 static inline u32 ath10k_ce_src_ring_write_index_get(struct ath10k *ar,
diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 7226c23b9569..04c132e9f219 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -38,17 +38,6 @@ MODULE_PARM_DESC(uart_print, "Uart target debugging");
 MODULE_PARM_DESC(p2p, "Enable ath10k P2P support");
 
 static const struct ath10k_hw_params ath10k_hw_params_list[] = {
-	{
-		.id = QCA988X_HW_1_0_VERSION,
-		.name = "qca988x hw1.0",
-		.patch_load_addr = QCA988X_HW_1_0_PATCH_LOAD_ADDR,
-		.fw = {
-			.dir = QCA988X_HW_1_0_FW_DIR,
-			.fw = QCA988X_HW_1_0_FW_FILE,
-			.otp = QCA988X_HW_1_0_OTP_FILE,
-			.board = QCA988X_HW_1_0_BOARD_DATA_FILE,
-		},
-	},
 	{
 		.id = QCA988X_HW_2_0_VERSION,
 		.name = "qca988x hw2.0",
diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
index 44ed5af0a204..373c2eff56f3 100644
--- a/drivers/net/wireless/ath/ath10k/hw.h
+++ b/drivers/net/wireless/ath/ath10k/hw.h
@@ -26,14 +26,6 @@
 #define SUPPORTED_FW_RELEASE	0
 #define SUPPORTED_FW_BUILD	629
 
-/* QCA988X 1.0 definitions */
-#define QCA988X_HW_1_0_VERSION		0x4000002c
-#define QCA988X_HW_1_0_FW_DIR		"ath10k/QCA988X/hw1.0"
-#define QCA988X_HW_1_0_FW_FILE		"firmware.bin"
-#define QCA988X_HW_1_0_OTP_FILE		"otp.bin"
-#define QCA988X_HW_1_0_BOARD_DATA_FILE	"board.bin"
-#define QCA988X_HW_1_0_PATCH_LOAD_ADDR	0x1234
-
 /* QCA988X 2.0 definitions */
 #define QCA988X_HW_2_0_VERSION		0x4100016c
 #define QCA988X_HW_2_0_FW_DIR		"ath10k/QCA988X/hw2.0"
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index e2f9ef50b1bd..4c94add4960d 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -36,11 +36,9 @@ static unsigned int ath10k_target_ps;
 module_param(ath10k_target_ps, uint, 0644);
 MODULE_PARM_DESC(ath10k_target_ps, "Enable ath10k Target (SoC) PS option");
 
-#define QCA988X_1_0_DEVICE_ID	(0xabcd)
 #define QCA988X_2_0_DEVICE_ID	(0x003c)
 
 static DEFINE_PCI_DEVICE_TABLE(ath10k_pci_id_table) = {
-	{ PCI_VDEVICE(ATHEROS, QCA988X_1_0_DEVICE_ID) }, /* PCI-E QCA988X V1 */
 	{ PCI_VDEVICE(ATHEROS, QCA988X_2_0_DEVICE_ID) }, /* PCI-E QCA988X V2 */
 	{0}
 };
@@ -2269,9 +2267,6 @@ static void ath10k_pci_dump_features(struct ath10k_pci *ar_pci)
 		case ATH10K_PCI_FEATURE_MSI_X:
 			ath10k_dbg(ATH10K_DBG_PCI, "device supports MSI-X\n");
 			break;
-		case ATH10K_PCI_FEATURE_HW_1_0_WORKAROUND:
-			ath10k_dbg(ATH10K_DBG_PCI, "QCA988X_1.0 workaround enabled\n");
-			break;
 		case ATH10K_PCI_FEATURE_SOC_POWER_SAVE:
 			ath10k_dbg(ATH10K_DBG_PCI, "QCA98XX SoC power save enabled\n");
 			break;
@@ -2298,9 +2293,6 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
 	ar_pci->dev = &pdev->dev;
 
 	switch (pci_dev->device) {
-	case QCA988X_1_0_DEVICE_ID:
-		set_bit(ATH10K_PCI_FEATURE_HW_1_0_WORKAROUND, ar_pci->features);
-		break;
 	case QCA988X_2_0_DEVICE_ID:
 		set_bit(ATH10K_PCI_FEATURE_MSI_X, ar_pci->features);
 		break;
@@ -2322,10 +2314,6 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
 		goto err_ar_pci;
 	}
 
-	/* Enable QCA988X_1.0 HW workarounds */
-	if (test_bit(ATH10K_PCI_FEATURE_HW_1_0_WORKAROUND, ar_pci->features))
-		spin_lock_init(&ar_pci->hw_v1_workaround_lock);
-
 	ar_pci->ar = ar;
 	ar_pci->fw_indicator_address = FW_INDICATOR_ADDRESS;
 	atomic_set(&ar_pci->keep_awake_count, 0);
@@ -2483,9 +2471,6 @@ module_exit(ath10k_pci_exit);
 MODULE_AUTHOR("Qualcomm Atheros");
 MODULE_DESCRIPTION("Driver support for Atheros QCA988X PCIe devices");
 MODULE_LICENSE("Dual BSD/GPL");
-MODULE_FIRMWARE(QCA988X_HW_1_0_FW_DIR "/" QCA988X_HW_1_0_FW_FILE);
-MODULE_FIRMWARE(QCA988X_HW_1_0_FW_DIR "/" QCA988X_HW_1_0_OTP_FILE);
-MODULE_FIRMWARE(QCA988X_HW_1_0_FW_DIR "/" QCA988X_HW_1_0_BOARD_DATA_FILE);
 MODULE_FIRMWARE(QCA988X_HW_2_0_FW_DIR "/" QCA988X_HW_2_0_FW_FILE);
 MODULE_FIRMWARE(QCA988X_HW_2_0_FW_DIR "/" QCA988X_HW_2_0_OTP_FILE);
 MODULE_FIRMWARE(QCA988X_HW_2_0_FW_DIR "/" QCA988X_HW_2_0_BOARD_DATA_FILE);
diff --git a/drivers/net/wireless/ath/ath10k/pci.h b/drivers/net/wireless/ath/ath10k/pci.h
index 871bb339d56d..b2439f59a52f 100644
--- a/drivers/net/wireless/ath/ath10k/pci.h
+++ b/drivers/net/wireless/ath/ath10k/pci.h
@@ -152,8 +152,7 @@ struct service_to_pipe {
 
 enum ath10k_pci_features {
 	ATH10K_PCI_FEATURE_MSI_X		= 0,
-	ATH10K_PCI_FEATURE_HW_1_0_WORKAROUND	= 1,
-	ATH10K_PCI_FEATURE_SOC_POWER_SAVE	= 2,
+	ATH10K_PCI_FEATURE_SOC_POWER_SAVE	= 1,
 
 	/* keep last */
 	ATH10K_PCI_FEATURE_COUNT
@@ -234,9 +233,6 @@ struct ath10k_pci {
 
 	/* Map CE id to ce_state */
 	struct ce_state *ce_id_to_state[CE_COUNT_MAX];
-
-	/* makes sure that dummy reads are atomic */
-	spinlock_t hw_v1_workaround_lock;
 };
 
 static inline struct ath10k_pci *ath10k_pci_priv(struct ath10k *ar)
@@ -310,23 +306,8 @@ static inline void ath10k_pci_write32(struct ath10k *ar, u32 offset,
 				      u32 value)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	void __iomem *addr = ar_pci->mem;
-
-	if (test_bit(ATH10K_PCI_FEATURE_HW_1_0_WORKAROUND, ar_pci->features)) {
-		unsigned long irq_flags;
-
-		spin_lock_irqsave(&ar_pci->hw_v1_workaround_lock, irq_flags);
-
-		ioread32(addr+offset+4); /* 3rd read prior to write */
-		ioread32(addr+offset+4); /* 2nd read prior to write */
-		ioread32(addr+offset+4); /* 1st read prior to write */
-		iowrite32(value, addr+offset);
 
-		spin_unlock_irqrestore(&ar_pci->hw_v1_workaround_lock,
-				       irq_flags);
-	} else {
-		iowrite32(value, addr+offset);
-	}
+	iowrite32(value, ar_pci->mem + offset);
 }
 
 static inline u32 ath10k_pci_read32(struct ath10k *ar, u32 offset)
-- 
cgit 


From 4e72b232a47fa773c49c4e63634df18be5ba3bb3 Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Wed, 7 Aug 2013 15:17:46 +0200
Subject: ath10k: update supported FW build version

The latest supported and available FW build is 1.0.0.636.
Reflect this in ath10k code.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/hw.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
index 373c2eff56f3..98687059ad9e 100644
--- a/drivers/net/wireless/ath/ath10k/hw.h
+++ b/drivers/net/wireless/ath/ath10k/hw.h
@@ -24,7 +24,7 @@
 #define SUPPORTED_FW_MAJOR	1
 #define SUPPORTED_FW_MINOR	0
 #define SUPPORTED_FW_RELEASE	0
-#define SUPPORTED_FW_BUILD	629
+#define SUPPORTED_FW_BUILD	636
 
 /* QCA988X 2.0 definitions */
 #define QCA988X_HW_2_0_VERSION		0x4100016c
-- 
cgit 


From 9c5ae6915d6f8cf682006e4067de80d22431d92e Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Fri, 9 Aug 2013 08:39:13 +0200
Subject: ath10k: check allocation errors in CE

Handle pci_alloc_consistent(), kmalloc()
errors in copy engine module.
Found during code review.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/ce.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index 9c9f0814bfcd..8135d5837b36 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -941,6 +941,12 @@ static int ath10k_ce_init_src_ring(struct ath10k *ar,
 				     (nentries * sizeof(struct ce_desc) +
 				      CE_DESC_RING_ALIGN),
 				     &base_addr);
+	if (!src_ring->base_addr_owner_space_unaligned) {
+		kfree(ce_state->src_ring);
+		ce_state->src_ring = NULL;
+		return -ENOMEM;
+	}
+
 	src_ring->base_addr_ce_space_unaligned = base_addr;
 
 	src_ring->base_addr_owner_space = PTR_ALIGN(
@@ -957,6 +963,16 @@ static int ath10k_ce_init_src_ring(struct ath10k *ar,
 	src_ring->shadow_base_unaligned =
 		kmalloc((nentries * sizeof(struct ce_desc) +
 			 CE_DESC_RING_ALIGN), GFP_KERNEL);
+	if (!src_ring->shadow_base_unaligned) {
+		pci_free_consistent(ar_pci->pdev,
+				    (nentries * sizeof(struct ce_desc) +
+				     CE_DESC_RING_ALIGN),
+				    src_ring->base_addr_owner_space,
+				    src_ring->base_addr_ce_space);
+		kfree(ce_state->src_ring);
+		ce_state->src_ring = NULL;
+		return -ENOMEM;
+	}
 
 	src_ring->shadow_base = PTR_ALIGN(
 			src_ring->shadow_base_unaligned,
@@ -1026,6 +1042,12 @@ static int ath10k_ce_init_dest_ring(struct ath10k *ar,
 				     (nentries * sizeof(struct ce_desc) +
 				      CE_DESC_RING_ALIGN),
 				     &base_addr);
+	if (!dest_ring->base_addr_owner_space_unaligned) {
+		kfree(ce_state->dest_ring);
+		ce_state->dest_ring = NULL;
+		return -ENOMEM;
+	}
+
 	dest_ring->base_addr_ce_space_unaligned = base_addr;
 
 	/*
-- 
cgit 


From 7a53f3f38ad4746c82496293bfb48fae69d71c64 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Tue, 13 Aug 2013 07:54:54 +0200
Subject: ath10k: clean up monitor start code

Remove useless code that was causing WARN_ON when
a 80MHz+ vif entered promiscuous mode or monitor
interface was started.

The channel mode is already computed by
chan_to_phymode().

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 505be82e408b..9637a949acd7 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -503,13 +503,10 @@ static int ath10k_monitor_start(struct ath10k *ar, int vdev_id)
 {
 	struct ieee80211_channel *channel = ar->hw->conf.chandef.chan;
 	struct wmi_vdev_start_request_arg arg = {};
-	enum nl80211_channel_type type;
 	int ret = 0;
 
 	lockdep_assert_held(&ar->conf_mutex);
 
-	type = cfg80211_get_chandef_type(&ar->hw->conf.chandef);
-
 	arg.vdev_id = vdev_id;
 	arg.channel.freq = channel->center_freq;
 	arg.channel.band_center_freq1 = ar->hw->conf.chandef.center_freq1;
-- 
cgit 


From ffe5daa873d37b56203dce4e8e55a4fab26b796d Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Tue, 13 Aug 2013 07:54:55 +0200
Subject: ath10k: use sizeof(*var) in kmalloc

This fixes checkpatch warning from the latest
3.11-rc kernel tree.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 4c94add4960d..8d24c6920a5b 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -803,8 +803,7 @@ static int ath10k_pci_start_ce(struct ath10k *ar)
 			continue;
 
 		for (i = 0; i < completions; i++) {
-			compl = kmalloc(sizeof(struct ath10k_pci_compl),
-					GFP_KERNEL);
+			compl = kmalloc(sizeof(*compl), GFP_KERNEL);
 			if (!compl) {
 				ath10k_warn("No memory for completion state\n");
 				ath10k_pci_stop_ce(ar);
-- 
cgit 


From f9d8fece02796f3776a712be3bcfa4c075afe942 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Tue, 13 Aug 2013 07:54:56 +0200
Subject: ath10k: clean up PCI completion states

Improve code readability by using enum and a
switch-case.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 22 ++++++++++++++++------
 drivers/net/wireless/ath/ath10k/pci.h | 13 +++++++------
 2 files changed, 23 insertions(+), 12 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 8d24c6920a5b..996efdd8a007 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -538,7 +538,7 @@ static void ath10k_pci_ce_send_done(struct ce_state *ce_state,
 		if (!compl)
 			break;
 
-		compl->send_or_recv = HIF_CE_COMPLETE_SEND;
+		compl->state = ATH10K_PCI_COMPL_SEND;
 		compl->ce_state = ce_state;
 		compl->pipe_info = pipe_info;
 		compl->transfer_context = transfer_context;
@@ -588,7 +588,7 @@ static void ath10k_pci_ce_recv_data(struct ce_state *ce_state,
 		if (!compl)
 			break;
 
-		compl->send_or_recv = HIF_CE_COMPLETE_RECV;
+		compl->state = ATH10K_PCI_COMPL_RECV;
 		compl->ce_state = ce_state;
 		compl->pipe_info = pipe_info;
 		compl->transfer_context = transfer_context;
@@ -810,7 +810,7 @@ static int ath10k_pci_start_ce(struct ath10k *ar)
 				return -ENOMEM;
 			}
 
-			compl->send_or_recv = HIF_CE_COMPLETE_FREE;
+			compl->state = ATH10K_PCI_COMPL_FREE;
 			list_add_tail(&compl->list, &pipe_info->compl_free);
 		}
 	}
@@ -909,12 +909,14 @@ static void ath10k_pci_process_ce(struct ath10k *ar)
 		list_del(&compl->list);
 		spin_unlock_bh(&ar_pci->compl_lock);
 
-		if (compl->send_or_recv == HIF_CE_COMPLETE_SEND) {
+		switch (compl->state) {
+		case ATH10K_PCI_COMPL_SEND:
 			cb->tx_completion(ar,
 					  compl->transfer_context,
 					  compl->transfer_id);
 			send_done = 1;
-		} else {
+			break;
+		case ATH10K_PCI_COMPL_RECV:
 			ret = ath10k_pci_post_rx_pipe(compl->pipe_info, 1);
 			if (ret) {
 				ath10k_warn("Unable to post recv buffer for pipe: %d\n",
@@ -941,9 +943,17 @@ static void ath10k_pci_process_ce(struct ath10k *ar)
 					    nbytes,
 					    skb->len + skb_tailroom(skb));
 			}
+			break;
+		case ATH10K_PCI_COMPL_FREE:
+			ath10k_warn("free completion cannot be processed\n");
+			break;
+		default:
+			ath10k_warn("invalid completion state (%d)\n",
+				    compl->state);
+			break;
 		}
 
-		compl->send_or_recv = HIF_CE_COMPLETE_FREE;
+		compl->state = ATH10K_PCI_COMPL_FREE;
 
 		/*
 		 * Add completion back to the pipe's free list.
diff --git a/drivers/net/wireless/ath/ath10k/pci.h b/drivers/net/wireless/ath/ath10k/pci.h
index b2439f59a52f..153ae283b9f9 100644
--- a/drivers/net/wireless/ath/ath10k/pci.h
+++ b/drivers/net/wireless/ath/ath10k/pci.h
@@ -43,9 +43,15 @@ struct bmi_xfer {
 	u32 resp_len;
 };
 
+enum ath10k_pci_compl_state {
+	ATH10K_PCI_COMPL_FREE = 0,
+	ATH10K_PCI_COMPL_SEND,
+	ATH10K_PCI_COMPL_RECV,
+};
+
 struct ath10k_pci_compl {
 	struct list_head list;
-	int send_or_recv;
+	enum ath10k_pci_compl_state state;
 	struct ce_state *ce_state;
 	struct hif_ce_pipe_info *pipe_info;
 	void *transfer_context;
@@ -54,11 +60,6 @@ struct ath10k_pci_compl {
 	unsigned int flags;
 };
 
-/* compl_state.send_or_recv */
-#define HIF_CE_COMPLETE_FREE 0
-#define HIF_CE_COMPLETE_SEND 1
-#define HIF_CE_COMPLETE_RECV 2
-
 /*
  * PCI-specific Target state
  *
-- 
cgit 


From ba7ee55f8c10e07dd15dbfd7ac20a300bb673316 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Tue, 13 Aug 2013 07:54:57 +0200
Subject: ath10k: print errcode when CE ring setup fails

This makes it possible to see the reason why the
setup fails. It also adheres to code style of
error checking in ath drivers.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/ce.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index 8135d5837b36..1a702e1fa581 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -1121,6 +1121,7 @@ struct ce_state *ath10k_ce_init(struct ath10k *ar,
 {
 	struct ce_state *ce_state;
 	u32 ctrl_addr = ath10k_ce_base_address(ce_id);
+	int ret;
 
 	ce_state = ath10k_ce_init_state(ar, ce_id, attr);
 	if (!ce_state) {
@@ -1129,18 +1130,20 @@ struct ce_state *ath10k_ce_init(struct ath10k *ar,
 	}
 
 	if (attr->src_nentries) {
-		if (ath10k_ce_init_src_ring(ar, ce_id, ce_state, attr)) {
-			ath10k_err("Failed to initialize CE src ring for ID: %d\n",
-				   ce_id);
+		ret = ath10k_ce_init_src_ring(ar, ce_id, ce_state, attr);
+		if (ret) {
+			ath10k_err("Failed to initialize CE src ring for ID: %d (%d)\n",
+				   ce_id, ret);
 			ath10k_ce_deinit(ce_state);
 			return NULL;
 		}
 	}
 
 	if (attr->dest_nentries) {
-		if (ath10k_ce_init_dest_ring(ar, ce_id, ce_state, attr)) {
-			ath10k_err("Failed to initialize CE dest ring for ID: %d\n",
-				   ce_id);
+		ret = ath10k_ce_init_dest_ring(ar, ce_id, ce_state, attr);
+		if (ret) {
+			ath10k_err("Failed to initialize CE dest ring for ID: %d (%d)\n",
+				   ce_id, ret);
 			ath10k_ce_deinit(ce_state);
 			return NULL;
 		}
-- 
cgit 


From 0e1cbf9a6f85eb272bd6bc410db39b4e506d230f Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Tue, 13 Aug 2013 07:59:35 +0200
Subject: ath10k: fix HTT service setup

The "disable credit flow" flag was set too late
and it never was in the HTC service request
message.

This patch prevents firmware from reporting
(useless) HTC credits for HTT service. HTT service
doesn't use nor need credits.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htc.c b/drivers/net/wireless/ath/ath10k/htc.c
index ef3329ef52f3..7d445d3b849d 100644
--- a/drivers/net/wireless/ath/ath10k/htc.c
+++ b/drivers/net/wireless/ath/ath10k/htc.c
@@ -772,16 +772,16 @@ int ath10k_htc_connect_service(struct ath10k_htc *htc,
 
 	flags |= SM(tx_alloc, ATH10K_HTC_CONN_FLAGS_RECV_ALLOC);
 
-	req_msg = &msg->connect_service;
-	req_msg->flags = __cpu_to_le16(flags);
-	req_msg->service_id = __cpu_to_le16(conn_req->service_id);
-
 	/* Only enable credit flow control for WMI ctrl service */
 	if (conn_req->service_id != ATH10K_HTC_SVC_ID_WMI_CONTROL) {
 		flags |= ATH10K_HTC_CONN_FLAGS_DISABLE_CREDIT_FLOW_CTRL;
 		disable_credit_flow_ctrl = true;
 	}
 
+	req_msg = &msg->connect_service;
+	req_msg->flags = __cpu_to_le16(flags);
+	req_msg->service_id = __cpu_to_le16(conn_req->service_id);
+
 	INIT_COMPLETION(htc->ctl_resp);
 
 	status = ath10k_htc_send(htc, ATH10K_HTC_EP_0, skb);
-- 
cgit 


From dfa95b5024027400207ed6bf8914936f1b4efa88 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Tue, 13 Aug 2013 07:59:37 +0200
Subject: ath10k: implement 802.3 SNAP rx decap type A-MSDU handling

This enables driver to rx another decapped a-msdu
frames. It should possibly help with throughputs
in some cases and reduce (or eliminate) number of
messages like this:

  ath10k: error processing msdus -524

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt_rx.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index e784c40b904b..9bb0ae89fdba 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -610,8 +610,7 @@ static int ath10k_htt_rx_amsdu(struct ath10k_htt *htt,
 			RX_MPDU_START_INFO0_ENCRYPT_TYPE);
 
 	/* FIXME: No idea what assumptions are safe here. Need logs */
-	if ((fmt == RX_MSDU_DECAP_RAW && skb->next) ||
-	    (fmt == RX_MSDU_DECAP_8023_SNAP_LLC)) {
+	if ((fmt == RX_MSDU_DECAP_RAW && skb->next)) {
 		ath10k_htt_rx_free_msdu_chain(skb->next);
 		skb->next = NULL;
 		return -ENOTSUPP;
@@ -659,6 +658,15 @@ static int ath10k_htt_rx_amsdu(struct ath10k_htt *htt,
 			decap_hdr += roundup(crypto_len, 4);
 		}
 
+		/* When fmt == RX_MSDU_DECAP_8023_SNAP_LLC:
+		 *
+		 * SNAP 802.3 consists of:
+		 * [dst:6][src:6][len:2][dsap:1][ssap:1][ctl:1][snap:5]
+		 * [data][fcs:4].
+		 *
+		 * Since this overlaps with A-MSDU header (da, sa, len)
+		 * there's nothing extra to do. */
+
 		if (fmt == RX_MSDU_DECAP_ETHERNET2_DIX) {
 			/* Ethernet2 decap inserts ethernet header in place of
 			 * A-MSDU subframe header. */
-- 
cgit 


From 7f8a62db4ba9d08d2bacf126b442d43ea47b22a8 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Tue, 13 Aug 2013 07:59:38 +0200
Subject: ath10k: plug possible memory leak in WMI

There was a possible memory leak when WMI command
queue reached it's limit. Command buffers were not
freed.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/wmi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 55f90c761868..775fedfd6832 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -110,6 +110,7 @@ static int ath10k_wmi_cmd_send(struct ath10k *ar, struct sk_buff *skb,
 	if (atomic_add_return(1, &ar->wmi.pending_tx_count) >
 	    WMI_MAX_PENDING_TX_COUNT) {
 		/* avoid using up memory when FW hangs */
+		dev_kfree_skb(skb);
 		atomic_dec(&ar->wmi.pending_tx_count);
 		return -EBUSY;
 	}
-- 
cgit 


From 68c8a9b22eeec0b57ba261eec5b642ec1cc5fa16 Mon Sep 17 00:00:00 2001
From: Marek Puzyniak <marek.puzyniak@tieto.com>
Date: Tue, 13 Aug 2013 11:45:22 +0200
Subject: ath10k: fix WEP in AP and IBSS mode

WEP encoding was not working properly for AP and IBSS mode.
TX frames were encrypted with default WEP tx key index set
always to zero, what sometimes was wrong when different
key index should be used. This patch allows to update
WEP key index also for AP and IBSS mode.
Problem detected during automated WEP tests.

Signed-off-by: Marek Puzyniak <marek.puzyniak@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 9637a949acd7..7eab8a429e7c 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1418,10 +1418,6 @@ static void ath10k_tx_h_update_wep_key(struct sk_buff *skb)
 	struct ieee80211_key_conf *key = info->control.hw_key;
 	int ret;
 
-	/* TODO AP mode should be implemented */
-	if (vif->type != NL80211_IFTYPE_STATION)
-		return;
-
 	if (!ieee80211_has_protected(hdr->frame_control))
 		return;
 
-- 
cgit 


From 0d9b0438b616479e4decadf2cb7d39a5f4e5360f Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Fri, 9 Aug 2013 10:13:33 +0200
Subject: ath10k: add support for firmware newer than 636

The mgmt_rx event structure has been expanded.
Since the structure header is expanded the payload
(i.e. mgmt frame) is shifted by a few bytes. This
needs to be taken into account in order to support
both old and new firmware.

This introduces a fw_features to keep track of any
FW-related ABI/behaviour changes.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.h | 10 ++++++++++
 drivers/net/wireless/ath/ath10k/wmi.c  | 32 ++++++++++++++++++++++++--------
 drivers/net/wireless/ath/ath10k/wmi.h  | 16 +++++++++++++---
 3 files changed, 47 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index e4bba563ed42..ab05c4c1b0fa 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -270,6 +270,14 @@ enum ath10k_state {
 	ATH10K_STATE_WEDGED,
 };
 
+enum ath10k_fw_features {
+	/* wmi_mgmt_rx_hdr contains extra RSSI information */
+	ATH10K_FW_FEATURE_EXT_WMI_MGMT_RX = 0,
+
+	/* keep last */
+	ATH10K_FW_FEATURE_COUNT,
+};
+
 struct ath10k {
 	struct ath_common ath_common;
 	struct ieee80211_hw *hw;
@@ -288,6 +296,8 @@ struct ath10k {
 	u32 vht_cap_info;
 	u32 num_rf_chains;
 
+	DECLARE_BITMAP(fw_features, ATH10K_FW_FEATURE_COUNT);
+
 	struct targetdef *targetdef;
 	struct hostdef *hostdef;
 
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 775fedfd6832..32fd5e735beb 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -316,7 +316,9 @@ static inline u8 get_rate_idx(u32 rate, enum ieee80211_band band)
 
 static int ath10k_wmi_event_mgmt_rx(struct ath10k *ar, struct sk_buff *skb)
 {
-	struct wmi_mgmt_rx_event *event = (struct wmi_mgmt_rx_event *)skb->data;
+	struct wmi_mgmt_rx_event_v1 *ev_v1;
+	struct wmi_mgmt_rx_event_v2 *ev_v2;
+	struct wmi_mgmt_rx_hdr_v1 *ev_hdr;
 	struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
 	struct ieee80211_hdr *hdr;
 	u32 rx_status;
@@ -326,13 +328,24 @@ static int ath10k_wmi_event_mgmt_rx(struct ath10k *ar, struct sk_buff *skb)
 	u32 rate;
 	u32 buf_len;
 	u16 fc;
+	int pull_len;
+
+	if (test_bit(ATH10K_FW_FEATURE_EXT_WMI_MGMT_RX, ar->fw_features)) {
+		ev_v2 = (struct wmi_mgmt_rx_event_v2 *)skb->data;
+		ev_hdr = &ev_v2->hdr.v1;
+		pull_len = sizeof(*ev_v2);
+	} else {
+		ev_v1 = (struct wmi_mgmt_rx_event_v1 *)skb->data;
+		ev_hdr = &ev_v1->hdr;
+		pull_len = sizeof(*ev_v1);
+	}
 
-	channel   = __le32_to_cpu(event->hdr.channel);
-	buf_len   = __le32_to_cpu(event->hdr.buf_len);
-	rx_status = __le32_to_cpu(event->hdr.status);
-	snr       = __le32_to_cpu(event->hdr.snr);
-	phy_mode  = __le32_to_cpu(event->hdr.phy_mode);
-	rate	  = __le32_to_cpu(event->hdr.rate);
+	channel   = __le32_to_cpu(ev_hdr->channel);
+	buf_len   = __le32_to_cpu(ev_hdr->buf_len);
+	rx_status = __le32_to_cpu(ev_hdr->status);
+	snr       = __le32_to_cpu(ev_hdr->snr);
+	phy_mode  = __le32_to_cpu(ev_hdr->phy_mode);
+	rate	  = __le32_to_cpu(ev_hdr->rate);
 
 	memset(status, 0, sizeof(*status));
 
@@ -359,7 +372,7 @@ static int ath10k_wmi_event_mgmt_rx(struct ath10k *ar, struct sk_buff *skb)
 	status->signal = snr + ATH10K_DEFAULT_NOISE_FLOOR;
 	status->rate_idx = get_rate_idx(rate, status->band);
 
-	skb_pull(skb, sizeof(event->hdr));
+	skb_pull(skb, pull_len);
 
 	hdr = (struct ieee80211_hdr *)skb->data;
 	fc = le16_to_cpu(hdr->frame_control);
@@ -944,6 +957,9 @@ static void ath10k_wmi_service_ready_event_rx(struct ath10k *ar,
 	ar->phy_capability = __le32_to_cpu(ev->phy_capability);
 	ar->num_rf_chains = __le32_to_cpu(ev->num_rf_chains);
 
+	if (ar->fw_version_build > 636)
+		set_bit(ATH10K_FW_FEATURE_EXT_WMI_MGMT_RX, ar->fw_features);
+
 	if (ar->num_rf_chains > WMI_MAX_SPATIAL_STREAM) {
 		ath10k_warn("hardware advertises support for more spatial streams than it should (%d > %d)\n",
 			    ar->num_rf_chains, WMI_MAX_SPATIAL_STREAM);
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 2c5a4f8daf2e..08860c475721 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -1268,7 +1268,7 @@ struct wmi_scan_event {
  * good idea to pass all the fields in the RX status
  * descriptor up to the host.
  */
-struct wmi_mgmt_rx_hdr {
+struct wmi_mgmt_rx_hdr_v1 {
 	__le32 channel;
 	__le32 snr;
 	__le32 rate;
@@ -1277,8 +1277,18 @@ struct wmi_mgmt_rx_hdr {
 	__le32 status; /* %WMI_RX_STATUS_ */
 } __packed;
 
-struct wmi_mgmt_rx_event {
-	struct wmi_mgmt_rx_hdr hdr;
+struct wmi_mgmt_rx_hdr_v2 {
+	struct wmi_mgmt_rx_hdr_v1 v1;
+	__le32 rssi_ctl[4];
+} __packed;
+
+struct wmi_mgmt_rx_event_v1 {
+	struct wmi_mgmt_rx_hdr_v1 hdr;
+	u8 buf[0];
+} __packed;
+
+struct wmi_mgmt_rx_event_v2 {
+	struct wmi_mgmt_rx_hdr_v2 hdr;
 	u8 buf[0];
 } __packed;
 
-- 
cgit 


From 961d4c38961a0f61e43edbb1fb579f28475a88bd Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Fri, 9 Aug 2013 10:13:34 +0200
Subject: ath10k: add support for HTT 3.0

New firmware comes with new HTT protocol version.
In 3.0 the separate mgmt tx command has been
removed. All traffic is to be pushed through data
tx (tx_frm) command with a twist - FW seems to not
be able (yet?) to access tx fragment table so for
manamgement frames frame pointer is passed
directly.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt.c    | 19 +++-----
 drivers/net/wireless/ath/ath10k/htt.h    |  6 +--
 drivers/net/wireless/ath/ath10k/htt_tx.c | 74 ++++++++++++++++++++++----------
 drivers/net/wireless/ath/ath10k/hw.h     |  3 ++
 drivers/net/wireless/ath/ath10k/mac.c    | 13 +++++-
 5 files changed, 76 insertions(+), 39 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt.c b/drivers/net/wireless/ath/ath10k/htt.c
index 39342c5cfcb2..5f7eeebc5432 100644
--- a/drivers/net/wireless/ath/ath10k/htt.c
+++ b/drivers/net/wireless/ath/ath10k/htt.c
@@ -104,21 +104,16 @@ err_htc_attach:
 
 static int ath10k_htt_verify_version(struct ath10k_htt *htt)
 {
-	ath10k_dbg(ATH10K_DBG_HTT,
-		   "htt target version %d.%d; host version %d.%d\n",
-		    htt->target_version_major,
-		    htt->target_version_minor,
-		    HTT_CURRENT_VERSION_MAJOR,
-		    HTT_CURRENT_VERSION_MINOR);
-
-	if (htt->target_version_major != HTT_CURRENT_VERSION_MAJOR) {
-		ath10k_err("htt major versions are incompatible!\n");
+	ath10k_info("htt target version %d.%d\n",
+		    htt->target_version_major, htt->target_version_minor);
+
+	if (htt->target_version_major != 2 &&
+	    htt->target_version_major != 3) {
+		ath10k_err("unsupported htt major version %d. supported versions are 2 and 3\n",
+			   htt->target_version_major);
 		return -ENOTSUPP;
 	}
 
-	if (htt->target_version_minor != HTT_CURRENT_VERSION_MINOR)
-		ath10k_warn("htt minor version differ but still compatible\n");
-
 	return 0;
 }
 
diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h
index 318be4629cde..26c78a907f97 100644
--- a/drivers/net/wireless/ath/ath10k/htt.h
+++ b/drivers/net/wireless/ath/ath10k/htt.h
@@ -23,9 +23,6 @@
 #include "htc.h"
 #include "rx_desc.h"
 
-#define HTT_CURRENT_VERSION_MAJOR	2
-#define HTT_CURRENT_VERSION_MINOR	1
-
 enum htt_dbg_stats_type {
 	HTT_DBG_STATS_WAL_PDEV_TXRX = 1 << 0,
 	HTT_DBG_STATS_RX_REORDER    = 1 << 1,
@@ -45,6 +42,9 @@ enum htt_h2t_msg_type { /* host-to-target */
 	HTT_H2T_MSG_TYPE_SYNC               = 4,
 	HTT_H2T_MSG_TYPE_AGGR_CFG           = 5,
 	HTT_H2T_MSG_TYPE_FRAG_DESC_BANK_CFG = 6,
+
+	/* This command is used for sending management frames in HTT < 3.0.
+	 * HTT >= 3.0 uses TX_FRM for everything. */
 	HTT_H2T_MSG_TYPE_MGMT_TX            = 7,
 
 	HTT_H2T_NUM_MSGS /* keep this last */
diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c
index 656c2546b294..d4fb3875c918 100644
--- a/drivers/net/wireless/ath/ath10k/htt_tx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_tx.c
@@ -401,10 +401,16 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 		goto err;
 	}
 
-	txfrag = dev_alloc_skb(frag_len);
-	if (!txfrag) {
-		res = -ENOMEM;
-		goto err;
+	/* Since HTT 3.0 there is no separate mgmt tx command. However in case
+	 * of mgmt tx using TX_FRM there is not tx fragment list. Instead of tx
+	 * fragment list host driver specifies directly frame pointer. */
+	if (htt->target_version_major < 3 ||
+	    !ieee80211_is_mgmt(hdr->frame_control)) {
+		txfrag = dev_alloc_skb(frag_len);
+		if (!txfrag) {
+			res = -ENOMEM;
+			goto err;
+		}
 	}
 
 	if (!IS_ALIGNED((unsigned long)txdesc->data, 4)) {
@@ -427,23 +433,31 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 	if (res)
 		goto err;
 
-	/* tx fragment list must be terminated with zero-entry */
-	skb_put(txfrag, frag_len);
-	tx_frags = (struct htt_data_tx_desc_frag *)txfrag->data;
-	tx_frags[0].paddr = __cpu_to_le32(ATH10K_SKB_CB(msdu)->paddr);
-	tx_frags[0].len   = __cpu_to_le32(msdu->len);
-	tx_frags[1].paddr = __cpu_to_le32(0);
-	tx_frags[1].len   = __cpu_to_le32(0);
-
-	res = ath10k_skb_map(dev, txfrag);
-	if (res)
-		goto err;
+	/* Since HTT 3.0 there is no separate mgmt tx command. However in case
+	 * of mgmt tx using TX_FRM there is not tx fragment list. Instead of tx
+	 * fragment list host driver specifies directly frame pointer. */
+	if (htt->target_version_major < 3 ||
+	    !ieee80211_is_mgmt(hdr->frame_control)) {
+		/* tx fragment list must be terminated with zero-entry */
+		skb_put(txfrag, frag_len);
+		tx_frags = (struct htt_data_tx_desc_frag *)txfrag->data;
+		tx_frags[0].paddr = __cpu_to_le32(ATH10K_SKB_CB(msdu)->paddr);
+		tx_frags[0].len   = __cpu_to_le32(msdu->len);
+		tx_frags[1].paddr = __cpu_to_le32(0);
+		tx_frags[1].len   = __cpu_to_le32(0);
+
+		res = ath10k_skb_map(dev, txfrag);
+		if (res)
+			goto err;
+
+		ath10k_dbg(ATH10K_DBG_HTT, "txfrag 0x%llx\n",
+			   (unsigned long long) ATH10K_SKB_CB(txfrag)->paddr);
+		ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "txfrag: ",
+				txfrag->data, frag_len);
+	}
 
-	ath10k_dbg(ATH10K_DBG_HTT, "txfrag 0x%llx msdu 0x%llx\n",
-		   (unsigned long long) ATH10K_SKB_CB(txfrag)->paddr,
+	ath10k_dbg(ATH10K_DBG_HTT, "msdu 0x%llx\n",
 		   (unsigned long long) ATH10K_SKB_CB(msdu)->paddr);
-	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "txfrag: ",
-			txfrag->data, frag_len);
 	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "msdu: ",
 			msdu->data, msdu->len);
 
@@ -459,8 +473,17 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 	if (!ieee80211_has_protected(hdr->frame_control))
 		flags0 |= HTT_DATA_TX_DESC_FLAGS0_NO_ENCRYPT;
 	flags0 |= HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT;
-	flags0 |= SM(ATH10K_HW_TXRX_NATIVE_WIFI,
-		     HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE);
+
+	/* Since HTT 3.0 there is no separate mgmt tx command. However in case
+	 * of mgmt tx using TX_FRM there is not tx fragment list. Instead of tx
+	 * fragment list host driver specifies directly frame pointer. */
+	if (htt->target_version_major >= 3 &&
+	    ieee80211_is_mgmt(hdr->frame_control))
+		flags0 |= SM(ATH10K_HW_TXRX_MGMT,
+			     HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE);
+	else
+		flags0 |= SM(ATH10K_HW_TXRX_NATIVE_WIFI,
+			     HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE);
 
 	flags1  = 0;
 	flags1 |= SM((u16)vdev_id, HTT_DATA_TX_DESC_FLAGS1_VDEV_ID);
@@ -468,7 +491,14 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 	flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L3_OFFLOAD;
 	flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L4_OFFLOAD;
 
-	frags_paddr = ATH10K_SKB_CB(txfrag)->paddr;
+	/* Since HTT 3.0 there is no separate mgmt tx command. However in case
+	 * of mgmt tx using TX_FRM there is not tx fragment list. Instead of tx
+	 * fragment list host driver specifies directly frame pointer. */
+	if (htt->target_version_major >= 3 &&
+	    ieee80211_is_mgmt(hdr->frame_control))
+		frags_paddr = ATH10K_SKB_CB(msdu)->paddr;
+	else
+		frags_paddr = ATH10K_SKB_CB(txfrag)->paddr;
 
 	cmd->hdr.msg_type        = HTT_H2T_MSG_TYPE_TX_FRM;
 	cmd->data_tx.flags0      = flags0;
diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
index 98687059ad9e..5708888486eb 100644
--- a/drivers/net/wireless/ath/ath10k/hw.h
+++ b/drivers/net/wireless/ath/ath10k/hw.h
@@ -45,6 +45,9 @@ enum ath10k_hw_txrx_mode {
 	ATH10K_HW_TXRX_RAW = 0,
 	ATH10K_HW_TXRX_NATIVE_WIFI = 1,
 	ATH10K_HW_TXRX_ETHERNET = 2,
+
+	/* Valid for HTT >= 3.0. Used for management frames in TX_FRM. */
+	ATH10K_HW_TXRX_MGMT = 3,
 };
 
 enum ath10k_mcast2ucast_mode {
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 7eab8a429e7c..248248b5c196 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1473,6 +1473,12 @@ static void ath10k_tx_htt(struct ath10k *ar, struct sk_buff *skb)
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 	int ret;
 
+	if (ar->htt.target_version_major >= 3) {
+		/* Since HTT 3.0 there is no separate mgmt tx command */
+		ret = ath10k_htt_tx(&ar->htt, skb);
+		goto exit;
+	}
+
 	if (ieee80211_is_mgmt(hdr->frame_control))
 		ret = ath10k_htt_mgmt_tx(&ar->htt, skb);
 	else if (ieee80211_is_nullfunc(hdr->frame_control))
@@ -1484,6 +1490,7 @@ static void ath10k_tx_htt(struct ath10k *ar, struct sk_buff *skb)
 	else
 		ret = ath10k_htt_tx(&ar->htt, skb);
 
+exit:
 	if (ret) {
 		ath10k_warn("tx failed (%d). dropping packet.\n", ret);
 		ieee80211_free_txskb(ar->hw, skb);
@@ -1720,8 +1727,10 @@ static void ath10k_tx(struct ieee80211_hw *hw,
 	/* we must calculate tid before we apply qos workaround
 	 * as we'd lose the qos control field */
 	tid = HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;
-	if (ieee80211_is_data_qos(hdr->frame_control) &&
-	    is_unicast_ether_addr(ieee80211_get_DA(hdr))) {
+	if (ieee80211_is_mgmt(hdr->frame_control)) {
+		tid = HTT_DATA_TX_EXT_TID_MGMT;
+	} else if (ieee80211_is_data_qos(hdr->frame_control) &&
+		   is_unicast_ether_addr(ieee80211_get_DA(hdr))) {
 		u8 *qc = ieee80211_get_qos_ctl(hdr);
 		tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
 	}
-- 
cgit 


From a97ad0c4b447a132a322cedc3a5f7fa4cab4b304 Mon Sep 17 00:00:00 2001
From: Miroslav Lichvar <mlichvar@redhat.com>
Date: Thu, 1 Aug 2013 19:31:35 +0200
Subject: ntp: Make periodic RTC update more reliable

The current code requires that the scheduled update of the RTC happens
in the closest tick to the half of the second. This seems to be
difficult to achieve reliably. The scheduled work may be missing the
target time by a tick or two and be constantly rescheduled every second.

Relax the limit to 10 ticks. As a typical RTC drifts in the 11-minute
update interval by several milliseconds, this shouldn't affect the
overall accuracy of the RTC much.

Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 kernel/time/ntp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index 8f5b3b98577b..ab1fa7cb8912 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -475,6 +475,7 @@ static void sync_cmos_clock(struct work_struct *work)
 	 * called as close as possible to 500 ms before the new second starts.
 	 * This code is run on a timer.  If the clock is set, that timer
 	 * may not expire at the correct time.  Thus, we adjust...
+	 * We want the clock to be within a couple of ticks from the target.
 	 */
 	if (!ntp_synced()) {
 		/*
@@ -485,7 +486,7 @@ static void sync_cmos_clock(struct work_struct *work)
 	}
 
 	getnstimeofday(&now);
-	if (abs(now.tv_nsec - (NSEC_PER_SEC / 2)) <= tick_nsec / 2) {
+	if (abs(now.tv_nsec - (NSEC_PER_SEC / 2)) <= tick_nsec * 5) {
 		struct timespec adjust = now;
 
 		fail = -ENODEV;
-- 
cgit 


From 0806ae4cc8722b2d2822fe3fa3f516f2da6b9459 Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Fri, 23 Aug 2013 15:46:08 +0200
Subject: xfrm: announce deleation of temporary SA

Creation of temporary SA are announced by netlink, but there is no notification
for the deletion.
This patch fix this asymmetric situation.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
 net/xfrm/xfrm_state.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index 4f8ace855864..3fd65b73df7e 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -471,7 +471,7 @@ expired:
 	}
 
 	err = __xfrm_state_delete(x);
-	if (!err && x->id.spi)
+	if (!err)
 		km_state_expired(x, 1, 0);
 
 	xfrm_audit_state_delete(x, err ? 0 : 1,
-- 
cgit 


From e2951f7ff8d6f94f1f3c2cab1f360de444b32ed8 Mon Sep 17 00:00:00 2001
From: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Date: Wed, 21 Aug 2013 21:56:44 +0530
Subject: ath10k: Fix mutex unlock balance

ath10k_debug_read_target_stats is properly
protected by data_lock (spinlock). Remove
the unwanted mutex_unlock(&ar->conf_mutex)

[ BUG: bad unlock balance detected! ]
-------------------------------------
kworker/u4:0/12459 is trying to release lock
(&ar->conf_mutex) at:
[<c16a170d>] mutex_unlock+0xd/0x10
but there are no more locks to release!

 Call Trace:
  [<c16a170d>] ? mutex_unlock+0xd/0x10
  [<c10b697d>] __lock_release+0x4d/0xe0
  [<f88ca0fc>] ? ath10k_debug_read_target_stats+0xac/0x290

  [<c16a170d>] ? mutex_unlock+0xd/0x10
  [<c10b6a5b>] lock_release+0x4b/0x150
  [<c16a1580>] __mutex_unlock_slowpath+0x70/0x150
  [<f88ca0fc>] ? ath10k_debug_read_target_stats+0xac/0x290

  [<c10b456b>] ? trace_hardirqs_on+0xb/0x10
  [<c16a170d>] mutex_unlock+0xd/0x10
  [<f88ca107>] ath10k_debug_read_target_stats+0xb7/0x290

  [<f88d337a>] ath10k_wmi_event_process+0x3fa/0x6e0

  [<c10b456b>] ? trace_hardirqs_on+0xb/0x10
  [<f88d36e1>] ath10k_wmi_event_work+0x21/0x40
               [ath10k_core]

Signed-off-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/debug.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index 3d65594fa098..fcb40ccdb33b 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -260,7 +260,6 @@ void ath10k_debug_read_target_stats(struct ath10k *ar,
 	}
 
 	spin_unlock_bh(&ar->data_lock);
-	mutex_unlock(&ar->conf_mutex);
 	complete(&ar->debug.event_stats_compl);
 }
 
-- 
cgit 


From aba8269588301f7778bea811d6f7ec74c2e37279 Mon Sep 17 00:00:00 2001
From: Fan Du <fan.du@windriver.com>
Date: Wed, 28 Aug 2013 15:09:40 +0800
Subject: {ipv4,xfrm}: Introduce xfrm_tunnel_notifier for xfrm tunnel mode
 callback

Some thoughts on IPv4 VTI implementation:

The connection between VTI receiving part and xfrm tunnel mode input process
is hardly a "xfrm_tunnel", xfrm_tunnel is used in places where, e.g ipip/sit
and xfrm4_tunnel, acts like a true "tunnel" device.

In addition, IMHO, VTI doesn't need vti_err to do something meaningful, as all
VTI needs is just a notifier to be called whenever xfrm_input ingress a packet
to update statistics.

A IPsec protected packet is first handled by protocol handlers, e.g AH/ESP,
to check packet authentication or encryption rightness. PMTU update is taken
care of in this stage by protocol error handler.

Then the packet is rearranged properly depending on whether it's transport
mode or tunnel mode packed by mode "input" handler. The VTI handler code
takes effects in this stage in tunnel mode only. So it neither need propagate
PMTU, as it has already been done if necessary, nor the VTI handler is
qualified as a xfrm_tunnel.

So this patch introduces xfrm_tunnel_notifier and meanwhile wipe out vti_err
code.

Signed-off-by: Fan Du <fan.du@windriver.com>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: David S. Miller <davem@davemloft.net>
Reviewed-by: Saurabh Mohan <saurabh.mohan@vyatta.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
 include/net/xfrm.h           | 10 +++++--
 net/ipv4/ip_vti.c            | 67 +-------------------------------------------
 net/ipv4/xfrm4_mode_tunnel.c | 16 +++++------
 3 files changed, 17 insertions(+), 76 deletions(-)

diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index 89d3d8ae204e..c7afa6e476c8 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1352,6 +1352,12 @@ struct xfrm_tunnel {
 	int priority;
 };
 
+struct xfrm_tunnel_notifier {
+	int (*handler)(struct sk_buff *skb);
+	struct xfrm_tunnel_notifier __rcu *next;
+	int priority;
+};
+
 struct xfrm6_tunnel {
 	int (*handler)(struct sk_buff *skb);
 	int (*err_handler)(struct sk_buff *skb, struct inet6_skb_parm *opt,
@@ -1495,8 +1501,8 @@ extern int xfrm4_output(struct sk_buff *skb);
 extern int xfrm4_output_finish(struct sk_buff *skb);
 extern int xfrm4_tunnel_register(struct xfrm_tunnel *handler, unsigned short family);
 extern int xfrm4_tunnel_deregister(struct xfrm_tunnel *handler, unsigned short family);
-extern int xfrm4_mode_tunnel_input_register(struct xfrm_tunnel *handler);
-extern int xfrm4_mode_tunnel_input_deregister(struct xfrm_tunnel *handler);
+extern int xfrm4_mode_tunnel_input_register(struct xfrm_tunnel_notifier *handler);
+extern int xfrm4_mode_tunnel_input_deregister(struct xfrm_tunnel_notifier *handler);
 extern int xfrm6_extract_header(struct sk_buff *skb);
 extern int xfrm6_extract_input(struct xfrm_state *x, struct sk_buff *skb);
 extern int xfrm6_rcv_spi(struct sk_buff *skb, int nexthdr, __be32 spi);
diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index e805e7b3030e..91f69bc883fe 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -49,70 +49,6 @@ static struct rtnl_link_ops vti_link_ops __read_mostly;
 static int vti_net_id __read_mostly;
 static int vti_tunnel_init(struct net_device *dev);
 
-static int vti_err(struct sk_buff *skb, u32 info)
-{
-
-	/* All the routers (except for Linux) return only
-	 * 8 bytes of packet payload. It means, that precise relaying of
-	 * ICMP in the real Internet is absolutely infeasible.
-	 */
-	struct net *net = dev_net(skb->dev);
-	struct ip_tunnel_net *itn = net_generic(net, vti_net_id);
-	struct iphdr *iph = (struct iphdr *)skb->data;
-	const int type = icmp_hdr(skb)->type;
-	const int code = icmp_hdr(skb)->code;
-	struct ip_tunnel *t;
-	int err;
-
-	switch (type) {
-	default:
-	case ICMP_PARAMETERPROB:
-		return 0;
-
-	case ICMP_DEST_UNREACH:
-		switch (code) {
-		case ICMP_SR_FAILED:
-		case ICMP_PORT_UNREACH:
-			/* Impossible event. */
-			return 0;
-		default:
-			/* All others are translated to HOST_UNREACH. */
-			break;
-		}
-		break;
-	case ICMP_TIME_EXCEEDED:
-		if (code != ICMP_EXC_TTL)
-			return 0;
-		break;
-	}
-
-	err = -ENOENT;
-
-	t = ip_tunnel_lookup(itn, skb->dev->ifindex, TUNNEL_NO_KEY,
-			     iph->daddr, iph->saddr, 0);
-	if (t == NULL)
-		goto out;
-
-	if (type == ICMP_DEST_UNREACH && code == ICMP_FRAG_NEEDED) {
-		ipv4_update_pmtu(skb, dev_net(skb->dev), info,
-				 t->parms.link, 0, IPPROTO_IPIP, 0);
-		err = 0;
-		goto out;
-	}
-
-	err = 0;
-	if (t->parms.iph.ttl == 0 && type == ICMP_TIME_EXCEEDED)
-		goto out;
-
-	if (time_before(jiffies, t->err_time + IPTUNNEL_ERR_TIMEO))
-		t->err_count++;
-	else
-		t->err_count = 1;
-	t->err_time = jiffies;
-out:
-	return err;
-}
-
 /* We dont digest the packet therefore let the packet pass */
 static int vti_rcv(struct sk_buff *skb)
 {
@@ -296,9 +232,8 @@ static void __net_init vti_fb_tunnel_init(struct net_device *dev)
 	iph->ihl		= 5;
 }
 
-static struct xfrm_tunnel vti_handler __read_mostly = {
+static struct xfrm_tunnel_notifier vti_handler __read_mostly = {
 	.handler	=	vti_rcv,
-	.err_handler	=	vti_err,
 	.priority	=	1,
 };
 
diff --git a/net/ipv4/xfrm4_mode_tunnel.c b/net/ipv4/xfrm4_mode_tunnel.c
index eb1dd4d643f2..b82cde1ea1b6 100644
--- a/net/ipv4/xfrm4_mode_tunnel.c
+++ b/net/ipv4/xfrm4_mode_tunnel.c
@@ -16,13 +16,13 @@
 #include <net/xfrm.h>
 
 /* Informational hook. The decap is still done here. */
-static struct xfrm_tunnel __rcu *rcv_notify_handlers __read_mostly;
+static struct xfrm_tunnel_notifier __rcu *rcv_notify_handlers __read_mostly;
 static DEFINE_MUTEX(xfrm4_mode_tunnel_input_mutex);
 
-int xfrm4_mode_tunnel_input_register(struct xfrm_tunnel *handler)
+int xfrm4_mode_tunnel_input_register(struct xfrm_tunnel_notifier *handler)
 {
-	struct xfrm_tunnel __rcu **pprev;
-	struct xfrm_tunnel *t;
+	struct xfrm_tunnel_notifier __rcu **pprev;
+	struct xfrm_tunnel_notifier *t;
 	int ret = -EEXIST;
 	int priority = handler->priority;
 
@@ -50,10 +50,10 @@ err:
 }
 EXPORT_SYMBOL_GPL(xfrm4_mode_tunnel_input_register);
 
-int xfrm4_mode_tunnel_input_deregister(struct xfrm_tunnel *handler)
+int xfrm4_mode_tunnel_input_deregister(struct xfrm_tunnel_notifier *handler)
 {
-	struct xfrm_tunnel __rcu **pprev;
-	struct xfrm_tunnel *t;
+	struct xfrm_tunnel_notifier __rcu **pprev;
+	struct xfrm_tunnel_notifier *t;
 	int ret = -ENOENT;
 
 	mutex_lock(&xfrm4_mode_tunnel_input_mutex);
@@ -134,7 +134,7 @@ static int xfrm4_mode_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
 
 static int xfrm4_mode_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
 {
-	struct xfrm_tunnel *handler;
+	struct xfrm_tunnel_notifier *handler;
 	int err = -EINVAL;
 
 	if (XFRM_MODE_SKB_CB(skb)->protocol != IPPROTO_IPIP)
-- 
cgit 


From 102aefdda4d8275ce7d7100bc16c88c74272b260 Mon Sep 17 00:00:00 2001
From: Anand Avati <avati@redhat.com>
Date: Tue, 16 Apr 2013 18:56:19 -0400
Subject: selinux: consider filesystem subtype in policies

Not considering sub filesystem has the following limitation. Support
for SELinux in FUSE is dependent on the particular userspace
filesystem, which is identified by the subtype. For e.g, GlusterFS,
a FUSE based filesystem supports SELinux (by mounting and processing
FUSE requests in different threads, avoiding the mount time
deadlock), whereas other FUSE based filesystems (identified by a
different subtype) have the mount time deadlock.

By considering the subtype of the filesytem in the SELinux policies,
allows us to specify a filesystem subtype, in the following way:

fs_use_xattr fuse.glusterfs gen_context(system_u:object_r:fs_t,s0);

This way not all FUSE filesystems are put in the same bucket and
subjected to the limitations of the other subtypes.

Signed-off-by: Anand Avati <avati@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/hooks.c       | 40 ++++++++++++++++++++++------------------
 security/selinux/ss/services.c | 42 ++++++++++++++++++++++++++++++++++++++----
 2 files changed, 60 insertions(+), 22 deletions(-)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 4fbf2c5f26ce..0d4408debb45 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -94,6 +94,10 @@
 #include "audit.h"
 #include "avc_ss.h"
 
+#define SB_TYPE_FMT "%s%s%s"
+#define SB_SUBTYPE(sb) (sb->s_subtype && sb->s_subtype[0])
+#define SB_TYPE_ARGS(sb) sb->s_type->name, SB_SUBTYPE(sb) ? "." : "", SB_SUBTYPE(sb) ? sb->s_subtype : ""
+
 extern struct security_operations *security_ops;
 
 /* SECMARK reference count */
@@ -407,8 +411,8 @@ static int sb_finish_set_opts(struct super_block *sb)
 		   the first boot of the SELinux kernel before we have
 		   assigned xattr values to the filesystem. */
 		if (!root_inode->i_op->getxattr) {
-			printk(KERN_WARNING "SELinux: (dev %s, type %s) has no "
-			       "xattr support\n", sb->s_id, sb->s_type->name);
+			printk(KERN_WARNING "SELinux: (dev %s, type "SB_TYPE_FMT") has no "
+			       "xattr support\n", sb->s_id, SB_TYPE_ARGS(sb));
 			rc = -EOPNOTSUPP;
 			goto out;
 		}
@@ -416,22 +420,22 @@ static int sb_finish_set_opts(struct super_block *sb)
 		if (rc < 0 && rc != -ENODATA) {
 			if (rc == -EOPNOTSUPP)
 				printk(KERN_WARNING "SELinux: (dev %s, type "
-				       "%s) has no security xattr handler\n",
-				       sb->s_id, sb->s_type->name);
+				       SB_TYPE_FMT") has no security xattr handler\n",
+				       sb->s_id, SB_TYPE_ARGS(sb));
 			else
 				printk(KERN_WARNING "SELinux: (dev %s, type "
-				       "%s) getxattr errno %d\n", sb->s_id,
-				       sb->s_type->name, -rc);
+				       SB_TYPE_FMT") getxattr errno %d\n", sb->s_id,
+				       SB_TYPE_ARGS(sb), -rc);
 			goto out;
 		}
 	}
 
 	if (sbsec->behavior > ARRAY_SIZE(labeling_behaviors))
-		printk(KERN_ERR "SELinux: initialized (dev %s, type %s), unknown behavior\n",
-		       sb->s_id, sb->s_type->name);
+		printk(KERN_ERR "SELinux: initialized (dev %s, type "SB_TYPE_FMT"), unknown behavior\n",
+		       sb->s_id, SB_TYPE_ARGS(sb));
 	else
-		printk(KERN_DEBUG "SELinux: initialized (dev %s, type %s), %s\n",
-		       sb->s_id, sb->s_type->name,
+		printk(KERN_DEBUG "SELinux: initialized (dev %s, type "SB_TYPE_FMT"), %s\n",
+		       sb->s_id, SB_TYPE_ARGS(sb),
 		       labeling_behaviors[sbsec->behavior-1]);
 
 	sbsec->flags |= SE_SBINITIALIZED;
@@ -589,7 +593,6 @@ static int selinux_set_mnt_opts(struct super_block *sb,
 	const struct cred *cred = current_cred();
 	int rc = 0, i;
 	struct superblock_security_struct *sbsec = sb->s_security;
-	const char *name = sb->s_type->name;
 	struct inode *inode = sbsec->sb->s_root->d_inode;
 	struct inode_security_struct *root_isec = inode->i_security;
 	u32 fscontext_sid = 0, context_sid = 0, rootcontext_sid = 0;
@@ -642,8 +645,8 @@ static int selinux_set_mnt_opts(struct super_block *sb,
 					     strlen(mount_options[i]), &sid);
 		if (rc) {
 			printk(KERN_WARNING "SELinux: security_context_to_sid"
-			       "(%s) failed for (dev %s, type %s) errno=%d\n",
-			       mount_options[i], sb->s_id, name, rc);
+			       "(%s) failed for (dev %s, type "SB_TYPE_FMT") errno=%d\n",
+			       mount_options[i], sb->s_id, SB_TYPE_ARGS(sb), rc);
 			goto out;
 		}
 		switch (flags[i]) {
@@ -779,7 +782,8 @@ out:
 out_double_mount:
 	rc = -EINVAL;
 	printk(KERN_WARNING "SELinux: mount invalid.  Same superblock, different "
-	       "security settings for (dev %s, type %s)\n", sb->s_id, name);
+	       "security settings for (dev %s, type "SB_TYPE_FMT")\n", sb->s_id,
+	       SB_TYPE_ARGS(sb));
 	goto out;
 }
 
@@ -2439,8 +2443,8 @@ static int selinux_sb_remount(struct super_block *sb, void *data)
 		rc = security_context_to_sid(mount_options[i], len, &sid);
 		if (rc) {
 			printk(KERN_WARNING "SELinux: security_context_to_sid"
-			       "(%s) failed for (dev %s, type %s) errno=%d\n",
-			       mount_options[i], sb->s_id, sb->s_type->name, rc);
+			       "(%s) failed for (dev %s, type "SB_TYPE_FMT") errno=%d\n",
+			       mount_options[i], sb->s_id, SB_TYPE_ARGS(sb), rc);
 			goto out_free_opts;
 		}
 		rc = -EINVAL;
@@ -2478,8 +2482,8 @@ out_free_secdata:
 	return rc;
 out_bad_option:
 	printk(KERN_WARNING "SELinux: unable to change security options "
-	       "during remount (dev %s, type=%s)\n", sb->s_id,
-	       sb->s_type->name);
+	       "during remount (dev %s, type "SB_TYPE_FMT")\n", sb->s_id,
+	       SB_TYPE_ARGS(sb));
 	goto out_free_opts;
 }
 
diff --git a/security/selinux/ss/services.c b/security/selinux/ss/services.c
index d106733ad987..ee470a0b5c27 100644
--- a/security/selinux/ss/services.c
+++ b/security/selinux/ss/services.c
@@ -2334,16 +2334,50 @@ int security_fs_use(struct super_block *sb)
 	struct ocontext *c;
 	struct superblock_security_struct *sbsec = sb->s_security;
 	const char *fstype = sb->s_type->name;
+	const char *subtype = (sb->s_subtype && sb->s_subtype[0]) ? sb->s_subtype : NULL;
+	struct ocontext *base = NULL;
 
 	read_lock(&policy_rwlock);
 
-	c = policydb.ocontexts[OCON_FSUSE];
-	while (c) {
-		if (strcmp(fstype, c->u.name) == 0)
+	for (c = policydb.ocontexts[OCON_FSUSE]; c; c = c->next) {
+		char *sub;
+		int baselen;
+
+		baselen = strlen(fstype);
+
+		/* if base does not match, this is not the one */
+		if (strncmp(fstype, c->u.name, baselen))
+			continue;
+
+		/* if there is no subtype, this is the one! */
+		if (!subtype)
+			break;
+
+		/* skip past the base in this entry */
+		sub = c->u.name + baselen;
+
+		/* entry is only a base. save it. keep looking for subtype */
+		if (sub[0] == '\0') {
+			base = c;
+			continue;
+		}
+
+		/* entry is not followed by a subtype, so it is not a match */
+		if (sub[0] != '.')
+			continue;
+
+		/* whew, we found a subtype of this fstype */
+		sub++; /* move past '.' */
+
+		/* exact match of fstype AND subtype */
+		if (!strcmp(subtype, sub))
 			break;
-		c = c->next;
 	}
 
+	/* in case we had found an fstype match but no subtype match */
+	if (!c)
+		c = base;
+
 	if (c) {
 		sbsec->behavior = c->v.behavior;
 		if (!c->sid[0]) {
-- 
cgit 


From 0b4bdb3573a86a88c829b9e4ad702859eb923e7e Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Wed, 28 Aug 2013 13:32:42 -0400
Subject: Revert "SELinux: do not handle seclabel as a special flag"

This reverts commit 308ab70c465d97cf7e3168961dfd365535de21a6.

It breaks my FC6 test box.  /dev/pts is not mounted.  dmesg says

SELinux: mount invalid.  Same superblock, different security settings
for (dev devpts, type devpts)

Cc: Peter Hurley <peter@hurleysoftware.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/hooks.c            | 3 +++
 security/selinux/include/security.h | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 0d4408debb45..c156f5eb1aea 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -504,6 +504,9 @@ static int selinux_get_mnt_opts(const struct super_block *sb,
 			opts->num_mnt_opts++;
 		tmp >>= 1;
 	}
+	/* Check if the Label support flag is set */
+	if (sbsec->flags & SBLABEL_MNT)
+		opts->num_mnt_opts++;
 
 	opts->mnt_opts = kcalloc(opts->num_mnt_opts, sizeof(char *), GFP_ATOMIC);
 	if (!opts->mnt_opts) {
diff --git a/security/selinux/include/security.h b/security/selinux/include/security.h
index 004a2479880f..7aad3a1389d1 100644
--- a/security/selinux/include/security.h
+++ b/security/selinux/include/security.h
@@ -43,7 +43,7 @@
 #endif
 
 /* Mask for just the mount related flags */
-#define SE_MNTMASK	0x1f
+#define SE_MNTMASK	0x0f
 /* Super block security struct flags for mount options */
 /* BE CAREFUL, these need to be the low order bits for selinux_get_mnt_opts */
 #define CONTEXT_MNT	0x01
-- 
cgit 


From 6898eb89655a8ac7d098b2fada95c1c91870365c Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Wed, 21 Aug 2013 00:15:00 +0100
Subject: iio: Remove trailing ; from function definitions

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 include/linux/iio/iio.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index 2103cc32a5fb..8e7a8132b109 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -457,7 +457,7 @@ static inline void iio_device_put(struct iio_dev *indio_dev)
 {
 	if (indio_dev)
 		put_device(&indio_dev->dev);
-};
+}
 
 /**
  * dev_to_iio_dev() - Get IIO device struct from a device struct
@@ -593,7 +593,7 @@ static inline bool iio_buffer_enabled(struct iio_dev *indio_dev)
 {
 	return indio_dev->currentmode
 		& (INDIO_BUFFER_TRIGGERED | INDIO_BUFFER_HARDWARE);
-};
+}
 
 /**
  * iio_get_debugfs_dentry() - helper function to get the debugfs_dentry
@@ -603,12 +603,12 @@ static inline bool iio_buffer_enabled(struct iio_dev *indio_dev)
 static inline struct dentry *iio_get_debugfs_dentry(struct iio_dev *indio_dev)
 {
 	return indio_dev->debugfs_dentry;
-};
+}
 #else
 static inline struct dentry *iio_get_debugfs_dentry(struct iio_dev *indio_dev)
 {
 	return NULL;
-};
+}
 #endif
 
 int iio_str_to_fixpoint(const char *str, int fract_mult, int *integer,
-- 
cgit 


From 39e4086a7365b933265839090b3468c9ecc52a42 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Tue, 27 Aug 2013 13:07:58 +0200
Subject: ath10k: use inline ce_state structure

Simplifies memory managament of ce_state.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/ce.c  | 37 ++++++++++++-----------------------
 drivers/net/wireless/ath/ath10k/pci.h |  2 +-
 2 files changed, 14 insertions(+), 25 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index 1a702e1fa581..c8b7d210b4dc 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -727,7 +727,7 @@ int ath10k_ce_completed_send_next(struct ce_state *ce_state,
 void ath10k_ce_per_engine_service(struct ath10k *ar, unsigned int ce_id)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	struct ce_state *ce_state = ar_pci->ce_id_to_state[ce_id];
+	struct ce_state *ce_state = &ar_pci->ce_states[ce_id];
 	u32 ctrl_addr = ce_state->ctrl_addr;
 	void *transfer_context;
 	u32 buf;
@@ -846,7 +846,7 @@ void ath10k_ce_disable_interrupts(struct ath10k *ar)
 
 	ath10k_pci_wake(ar);
 	for (ce_id = 0; ce_id < ar_pci->ce_count; ce_id++) {
-		struct ce_state *ce_state = ar_pci->ce_id_to_state[ce_id];
+		struct ce_state *ce_state = &ar_pci->ce_states[ce_id];
 		u32 ctrl_addr = ce_state->ctrl_addr;
 
 		ath10k_ce_copy_complete_intr_disable(ar, ctrl_addr);
@@ -1081,27 +1081,17 @@ static struct ce_state *ath10k_ce_init_state(struct ath10k *ar,
 					     const struct ce_attr *attr)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	struct ce_state *ce_state = NULL;
+	struct ce_state *ce_state = &ar_pci->ce_states[ce_id];
 	u32 ctrl_addr = ath10k_ce_base_address(ce_id);
 
 	spin_lock_bh(&ar_pci->ce_lock);
 
-	if (!ar_pci->ce_id_to_state[ce_id]) {
-		ce_state = kzalloc(sizeof(*ce_state), GFP_ATOMIC);
-		if (ce_state == NULL) {
-			spin_unlock_bh(&ar_pci->ce_lock);
-			return NULL;
-		}
-
-		ar_pci->ce_id_to_state[ce_id] = ce_state;
-		ce_state->ar = ar;
-		ce_state->id = ce_id;
-		ce_state->ctrl_addr = ctrl_addr;
-		ce_state->state = CE_RUNNING;
-		/* Save attribute flags */
-		ce_state->attr_flags = attr->flags;
-		ce_state->src_sz_max = attr->src_sz_max;
-	}
+	ce_state->ar = ar;
+	ce_state->id = ce_id;
+	ce_state->ctrl_addr = ctrl_addr;
+	ce_state->state = CE_RUNNING;
+	ce_state->attr_flags = attr->flags;
+	ce_state->src_sz_max = attr->src_sz_max;
 
 	spin_unlock_bh(&ar_pci->ce_lock);
 
@@ -1159,13 +1149,9 @@ struct ce_state *ath10k_ce_init(struct ath10k *ar,
 
 void ath10k_ce_deinit(struct ce_state *ce_state)
 {
-	unsigned int ce_id = ce_state->id;
 	struct ath10k *ar = ce_state->ar;
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 
-	ce_state->state = CE_UNUSED;
-	ar_pci->ce_id_to_state[ce_id] = NULL;
-
 	if (ce_state->src_ring) {
 		kfree(ce_state->src_ring->shadow_base_unaligned);
 		pci_free_consistent(ar_pci->pdev,
@@ -1186,5 +1172,8 @@ void ath10k_ce_deinit(struct ce_state *ce_state)
 				    ce_state->dest_ring->base_addr_ce_space);
 		kfree(ce_state->dest_ring);
 	}
-	kfree(ce_state);
+
+	ce_state->state = CE_UNUSED;
+	ce_state->src_ring = NULL;
+	ce_state->dest_ring = NULL;
 }
diff --git a/drivers/net/wireless/ath/ath10k/pci.h b/drivers/net/wireless/ath/ath10k/pci.h
index 153ae283b9f9..13acaf03ea8f 100644
--- a/drivers/net/wireless/ath/ath10k/pci.h
+++ b/drivers/net/wireless/ath/ath10k/pci.h
@@ -233,7 +233,7 @@ struct ath10k_pci {
 	spinlock_t ce_lock;
 
 	/* Map CE id to ce_state */
-	struct ce_state *ce_id_to_state[CE_COUNT_MAX];
+	struct ce_state ce_states[CE_COUNT_MAX];
 };
 
 static inline struct ath10k_pci *ath10k_pci_priv(struct ath10k *ar)
-- 
cgit 


From 774c7e8c2b2f648ef51aa5896fa350b6300c3043 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Tue, 27 Aug 2013 13:07:59 +0200
Subject: ath10k: remove ce_op_state

It was only written to and never read back. No use
to keep it around.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/ce.c | 2 --
 drivers/net/wireless/ath/ath10k/ce.h | 8 --------
 2 files changed, 10 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index c8b7d210b4dc..c391f4637bd2 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -1089,7 +1089,6 @@ static struct ce_state *ath10k_ce_init_state(struct ath10k *ar,
 	ce_state->ar = ar;
 	ce_state->id = ce_id;
 	ce_state->ctrl_addr = ctrl_addr;
-	ce_state->state = CE_RUNNING;
 	ce_state->attr_flags = attr->flags;
 	ce_state->src_sz_max = attr->src_sz_max;
 
@@ -1173,7 +1172,6 @@ void ath10k_ce_deinit(struct ce_state *ce_state)
 		kfree(ce_state->dest_ring);
 	}
 
-	ce_state->state = CE_UNUSED;
 	ce_state->src_ring = NULL;
 	ce_state->dest_ring = NULL;
 }
diff --git a/drivers/net/wireless/ath/ath10k/ce.h b/drivers/net/wireless/ath/ath10k/ce.h
index c17f07c026f4..6f6bca0ab0a3 100644
--- a/drivers/net/wireless/ath/ath10k/ce.h
+++ b/drivers/net/wireless/ath/ath10k/ce.h
@@ -39,13 +39,6 @@
 struct ce_state;
 
 
-/* Copy Engine operational state */
-enum ce_op_state {
-	CE_UNUSED,
-	CE_PAUSED,
-	CE_RUNNING,
-};
-
 #define CE_DESC_FLAGS_GATHER         (1 << 0)
 #define CE_DESC_FLAGS_BYTE_SWAP      (1 << 1)
 #define CE_DESC_FLAGS_META_DATA_MASK 0xFFFC
@@ -124,7 +117,6 @@ struct ce_state {
 	unsigned int attr_flags;
 
 	u32 ctrl_addr;
-	enum ce_op_state state;
 
 	void (*send_cb) (struct ce_state *ce_state,
 			 void *per_transfer_send_context,
-- 
cgit 


From 6702bad4065f1993e0541c41ff474291d407b363 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Tue, 27 Aug 2013 13:08:00 +0200
Subject: ath10k: remove unused ce_attr parameters

Some parameters were unused and are not required.
They have no representation in firmware. Clean
them up.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/ce.h  |  6 ------
 drivers/net/wireless/ath/ath10k/pci.c | 18 +++++++++---------
 2 files changed, 9 insertions(+), 15 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/ce.h b/drivers/net/wireless/ath/ath10k/ce.h
index 6f6bca0ab0a3..ce4cbbf01005 100644
--- a/drivers/net/wireless/ath/ath10k/ce.h
+++ b/drivers/net/wireless/ath/ath10k/ce.h
@@ -314,9 +314,6 @@ struct ce_attr {
 	/* CE_ATTR_* values */
 	unsigned int flags;
 
-	/* currently not in use */
-	unsigned int priority;
-
 	/* #entries in source ring - Must be a power of 2 */
 	unsigned int src_nentries;
 
@@ -328,9 +325,6 @@ struct ce_attr {
 
 	/* #entries in destination ring - Must be a power of 2 */
 	unsigned int dest_nentries;
-
-	/* Future use */
-	void *reserved;
 };
 
 /*
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 996efdd8a007..80cc7fdd5860 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -59,23 +59,23 @@ static void ath10k_pci_stop_intr(struct ath10k *ar);
 
 static const struct ce_attr host_ce_config_wlan[] = {
 	/* host->target HTC control and raw streams */
-	{ /* CE0 */ CE_ATTR_FLAGS, 0, 16, 256, 0, NULL,},
+	{ /* CE0 */ CE_ATTR_FLAGS, 16, 256, 0 },
 	/* could be moved to share CE3 */
 	/* target->host HTT + HTC control */
-	{ /* CE1 */ CE_ATTR_FLAGS, 0, 0, 512, 512, NULL,},
+	{ /* CE1 */ CE_ATTR_FLAGS, 0, 512, 512 },
 	/* target->host WMI */
-	{ /* CE2 */ CE_ATTR_FLAGS, 0, 0, 2048, 32, NULL,},
+	{ /* CE2 */ CE_ATTR_FLAGS, 0, 2048, 32 },
 	/* host->target WMI */
-	{ /* CE3 */ CE_ATTR_FLAGS, 0, 32, 2048, 0, NULL,},
+	{ /* CE3 */ CE_ATTR_FLAGS, 32, 2048, 0 },
 	/* host->target HTT */
-	{ /* CE4 */ CE_ATTR_FLAGS | CE_ATTR_DIS_INTR, 0,
-		    CE_HTT_H2T_MSG_SRC_NENTRIES, 256, 0, NULL,},
+	{ /* CE4 */ CE_ATTR_FLAGS | CE_ATTR_DIS_INTR,
+		    CE_HTT_H2T_MSG_SRC_NENTRIES, 256, 0 },
 	/* unused */
-	{ /* CE5 */ CE_ATTR_FLAGS, 0, 0, 0, 0, NULL,},
+	{ /* CE5 */ CE_ATTR_FLAGS, 0, 0, 0 },
 	/* Target autonomous hif_memcpy */
-	{ /* CE6 */ CE_ATTR_FLAGS, 0, 0, 0, 0, NULL,},
+	{ /* CE6 */ CE_ATTR_FLAGS, 0, 0, 0 },
 	/* ce_diag, the Diagnostic Window */
-	{ /* CE7 */ CE_ATTR_FLAGS, 0, 2, DIAG_TRANSFER_LIMIT, 2, NULL,},
+	{ /* CE7 */ CE_ATTR_FLAGS, 2, DIAG_TRANSFER_LIMIT, 2 },
 };
 
 /* Target firmware's Copy Engine configuration. */
-- 
cgit 


From 87263e5bb4c6d772a44a93ec05b37812efb0f85f Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Tue, 27 Aug 2013 13:08:01 +0200
Subject: ath10k: rename hif_ce_pipe_info to ath10k_pci_pipe

The new naming makes more sense.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 34 +++++++++++++++++-----------------
 drivers/net/wireless/ath/ath10k/pci.h |  6 +++---
 2 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 80cc7fdd5860..b740960a3698 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -48,9 +48,9 @@ static int ath10k_pci_diag_read_access(struct ath10k *ar, u32 address,
 
 static void ath10k_pci_process_ce(struct ath10k *ar);
 static int ath10k_pci_post_rx(struct ath10k *ar);
-static int ath10k_pci_post_rx_pipe(struct hif_ce_pipe_info *pipe_info,
+static int ath10k_pci_post_rx_pipe(struct ath10k_pci_pipe *pipe_info,
 					     int num);
-static void ath10k_pci_rx_pipe_cleanup(struct hif_ce_pipe_info *pipe_info);
+static void ath10k_pci_rx_pipe_cleanup(struct ath10k_pci_pipe *pipe_info);
 static void ath10k_pci_stop_ce(struct ath10k *ar);
 static void ath10k_pci_device_reset(struct ath10k *ar);
 static int ath10k_pci_reset_target(struct ath10k *ar);
@@ -491,7 +491,7 @@ void ath10k_do_pci_sleep(struct ath10k *ar)
  * FIXME: Handle OOM properly.
  */
 static inline
-struct ath10k_pci_compl *get_free_compl(struct hif_ce_pipe_info *pipe_info)
+struct ath10k_pci_compl *get_free_compl(struct ath10k_pci_pipe *pipe_info)
 {
 	struct ath10k_pci_compl *compl = NULL;
 
@@ -517,7 +517,7 @@ static void ath10k_pci_ce_send_done(struct ce_state *ce_state,
 {
 	struct ath10k *ar = ce_state->ar;
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	struct hif_ce_pipe_info *pipe_info =  &ar_pci->pipe_info[ce_state->id];
+	struct ath10k_pci_pipe *pipe_info =  &ar_pci->pipe_info[ce_state->id];
 	struct ath10k_pci_compl *compl;
 	bool process = false;
 
@@ -579,7 +579,7 @@ static void ath10k_pci_ce_recv_data(struct ce_state *ce_state,
 {
 	struct ath10k *ar = ce_state->ar;
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	struct hif_ce_pipe_info *pipe_info =  &ar_pci->pipe_info[ce_state->id];
+	struct ath10k_pci_pipe *pipe_info =  &ar_pci->pipe_info[ce_state->id];
 	struct ath10k_pci_compl *compl;
 	struct sk_buff *skb;
 
@@ -623,7 +623,7 @@ static int ath10k_pci_hif_send_head(struct ath10k *ar, u8 pipe_id,
 {
 	struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(nbuf);
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	struct hif_ce_pipe_info *pipe_info = &(ar_pci->pipe_info[pipe_id]);
+	struct ath10k_pci_pipe *pipe_info = &(ar_pci->pipe_info[pipe_id]);
 	struct ce_state *ce_hdl = pipe_info->ce_hdl;
 	struct ce_sendlist sendlist;
 	unsigned int len;
@@ -668,7 +668,7 @@ static int ath10k_pci_hif_send_head(struct ath10k *ar, u8 pipe_id,
 static u16 ath10k_pci_hif_get_free_queue_number(struct ath10k *ar, u8 pipe)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	struct hif_ce_pipe_info *pipe_info = &(ar_pci->pipe_info[pipe]);
+	struct ath10k_pci_pipe *pipe_info = &(ar_pci->pipe_info[pipe]);
 	int ret;
 
 	spin_lock_bh(&pipe_info->pipe_lock);
@@ -764,7 +764,7 @@ static int ath10k_pci_start_ce(struct ath10k *ar)
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 	struct ce_state *ce_diag = ar_pci->ce_diag;
 	const struct ce_attr *attr;
-	struct hif_ce_pipe_info *pipe_info;
+	struct ath10k_pci_pipe *pipe_info;
 	struct ath10k_pci_compl *compl;
 	int i, pipe_num, completions, disable_interrupts;
 
@@ -847,7 +847,7 @@ static void ath10k_pci_cleanup_ce(struct ath10k *ar)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 	struct ath10k_pci_compl *compl, *tmp;
-	struct hif_ce_pipe_info *pipe_info;
+	struct ath10k_pci_pipe *pipe_info;
 	struct sk_buff *netbuf;
 	int pipe_num;
 
@@ -1044,7 +1044,7 @@ static void ath10k_pci_hif_get_default_pipe(struct ath10k *ar,
 						 &dl_is_polled);
 }
 
-static int ath10k_pci_post_rx_pipe(struct hif_ce_pipe_info *pipe_info,
+static int ath10k_pci_post_rx_pipe(struct ath10k_pci_pipe *pipe_info,
 				   int num)
 {
 	struct ath10k *ar = pipe_info->hif_ce_state;
@@ -1104,7 +1104,7 @@ err:
 static int ath10k_pci_post_rx(struct ath10k *ar)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	struct hif_ce_pipe_info *pipe_info;
+	struct ath10k_pci_pipe *pipe_info;
 	const struct ce_attr *attr;
 	int pipe_num, ret = 0;
 
@@ -1154,7 +1154,7 @@ static int ath10k_pci_hif_start(struct ath10k *ar)
 	return 0;
 }
 
-static void ath10k_pci_rx_pipe_cleanup(struct hif_ce_pipe_info *pipe_info)
+static void ath10k_pci_rx_pipe_cleanup(struct ath10k_pci_pipe *pipe_info)
 {
 	struct ath10k *ar;
 	struct ath10k_pci *ar_pci;
@@ -1186,7 +1186,7 @@ static void ath10k_pci_rx_pipe_cleanup(struct hif_ce_pipe_info *pipe_info)
 	}
 }
 
-static void ath10k_pci_tx_pipe_cleanup(struct hif_ce_pipe_info *pipe_info)
+static void ath10k_pci_tx_pipe_cleanup(struct ath10k_pci_pipe *pipe_info)
 {
 	struct ath10k *ar;
 	struct ath10k_pci *ar_pci;
@@ -1239,7 +1239,7 @@ static void ath10k_pci_buffer_cleanup(struct ath10k *ar)
 	int pipe_num;
 
 	for (pipe_num = 0; pipe_num < ar_pci->ce_count; pipe_num++) {
-		struct hif_ce_pipe_info *pipe_info;
+		struct ath10k_pci_pipe *pipe_info;
 
 		pipe_info = &ar_pci->pipe_info[pipe_num];
 		ath10k_pci_rx_pipe_cleanup(pipe_info);
@@ -1250,7 +1250,7 @@ static void ath10k_pci_buffer_cleanup(struct ath10k *ar)
 static void ath10k_pci_ce_deinit(struct ath10k *ar)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	struct hif_ce_pipe_info *pipe_info;
+	struct ath10k_pci_pipe *pipe_info;
 	int pipe_num;
 
 	for (pipe_num = 0; pipe_num < ar_pci->ce_count; pipe_num++) {
@@ -1686,7 +1686,7 @@ static int ath10k_pci_init_config(struct ath10k *ar)
 static int ath10k_pci_ce_init(struct ath10k *ar)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	struct hif_ce_pipe_info *pipe_info;
+	struct ath10k_pci_pipe *pipe_info;
 	const struct ce_attr *attr;
 	int pipe_num;
 
@@ -1902,7 +1902,7 @@ static const struct ath10k_hif_ops ath10k_pci_hif_ops = {
 
 static void ath10k_pci_ce_tasklet(unsigned long ptr)
 {
-	struct hif_ce_pipe_info *pipe = (struct hif_ce_pipe_info *)ptr;
+	struct ath10k_pci_pipe *pipe = (struct ath10k_pci_pipe *)ptr;
 	struct ath10k_pci *ar_pci = pipe->ar_pci;
 
 	ath10k_ce_per_engine_service(ar_pci->ar, pipe->pipe_num);
diff --git a/drivers/net/wireless/ath/ath10k/pci.h b/drivers/net/wireless/ath/ath10k/pci.h
index 13acaf03ea8f..021172ca249c 100644
--- a/drivers/net/wireless/ath/ath10k/pci.h
+++ b/drivers/net/wireless/ath/ath10k/pci.h
@@ -53,7 +53,7 @@ struct ath10k_pci_compl {
 	struct list_head list;
 	enum ath10k_pci_compl_state state;
 	struct ce_state *ce_state;
-	struct hif_ce_pipe_info *pipe_info;
+	struct ath10k_pci_pipe *pipe_info;
 	void *transfer_context;
 	unsigned int nbytes;
 	unsigned int transfer_id;
@@ -160,7 +160,7 @@ enum ath10k_pci_features {
 };
 
 /* Per-pipe state. */
-struct hif_ce_pipe_info {
+struct ath10k_pci_pipe {
 	/* Handle of underlying Copy Engine */
 	struct ce_state *ce_hdl;
 
@@ -219,7 +219,7 @@ struct ath10k_pci {
 
 	bool compl_processing;
 
-	struct hif_ce_pipe_info pipe_info[CE_COUNT_MAX];
+	struct ath10k_pci_pipe pipe_info[CE_COUNT_MAX];
 
 	struct ath10k_hif_cb msg_callbacks_current;
 
-- 
cgit 


From 2aa39115737be4e57d80a404490d79bd1981777f Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Tue, 27 Aug 2013 13:08:02 +0200
Subject: ath10k: rename ce_state to ath10k_ce_pipe

The new naming makes more sense.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/ce.c  | 66 +++++++++++++++++------------------
 drivers/net/wireless/ath/ath10k/ce.h  | 53 ++++++++++++++--------------
 drivers/net/wireless/ath/ath10k/pci.c | 28 ++++++++-------
 drivers/net/wireless/ath/ath10k/pci.h |  8 ++---
 4 files changed, 78 insertions(+), 77 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index c391f4637bd2..15679d93ff8f 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -256,7 +256,7 @@ static inline void ath10k_ce_engine_int_status_clear(struct ath10k *ar,
  * ath10k_ce_sendlist_send.
  * The caller takes responsibility for any needed locking.
  */
-static int ath10k_ce_send_nolock(struct ce_state *ce_state,
+static int ath10k_ce_send_nolock(struct ath10k_ce_pipe *ce_state,
 				 void *per_transfer_context,
 				 u32 buffer,
 				 unsigned int nbytes,
@@ -317,7 +317,7 @@ exit:
 	return ret;
 }
 
-int ath10k_ce_send(struct ce_state *ce_state,
+int ath10k_ce_send(struct ath10k_ce_pipe *ce_state,
 		   void *per_transfer_context,
 		   u32 buffer,
 		   unsigned int nbytes,
@@ -349,7 +349,7 @@ void ath10k_ce_sendlist_buf_add(struct ce_sendlist *sendlist, u32 buffer,
 	sendlist->num_items++;
 }
 
-int ath10k_ce_sendlist_send(struct ce_state *ce_state,
+int ath10k_ce_sendlist_send(struct ath10k_ce_pipe *ce_state,
 			    void *per_transfer_context,
 			    struct ce_sendlist *sendlist,
 			    unsigned int transfer_id)
@@ -402,7 +402,7 @@ int ath10k_ce_sendlist_send(struct ce_state *ce_state,
 	return ret;
 }
 
-int ath10k_ce_recv_buf_enqueue(struct ce_state *ce_state,
+int ath10k_ce_recv_buf_enqueue(struct ath10k_ce_pipe *ce_state,
 			       void *per_recv_context,
 			       u32 buffer)
 {
@@ -450,7 +450,7 @@ int ath10k_ce_recv_buf_enqueue(struct ce_state *ce_state,
  * Guts of ath10k_ce_completed_recv_next.
  * The caller takes responsibility for any necessary locking.
  */
-static int ath10k_ce_completed_recv_next_nolock(struct ce_state *ce_state,
+static int ath10k_ce_completed_recv_next_nolock(struct ath10k_ce_pipe *ce_state,
 						void **per_transfer_contextp,
 						u32 *bufferp,
 						unsigned int *nbytesp,
@@ -506,7 +506,7 @@ static int ath10k_ce_completed_recv_next_nolock(struct ce_state *ce_state,
 	return 0;
 }
 
-int ath10k_ce_completed_recv_next(struct ce_state *ce_state,
+int ath10k_ce_completed_recv_next(struct ath10k_ce_pipe *ce_state,
 				  void **per_transfer_contextp,
 				  u32 *bufferp,
 				  unsigned int *nbytesp,
@@ -527,7 +527,7 @@ int ath10k_ce_completed_recv_next(struct ce_state *ce_state,
 	return ret;
 }
 
-int ath10k_ce_revoke_recv_next(struct ce_state *ce_state,
+int ath10k_ce_revoke_recv_next(struct ath10k_ce_pipe *ce_state,
 			       void **per_transfer_contextp,
 			       u32 *bufferp)
 {
@@ -583,7 +583,7 @@ int ath10k_ce_revoke_recv_next(struct ce_state *ce_state,
  * Guts of ath10k_ce_completed_send_next.
  * The caller takes responsibility for any necessary locking.
  */
-static int ath10k_ce_completed_send_next_nolock(struct ce_state *ce_state,
+static int ath10k_ce_completed_send_next_nolock(struct ath10k_ce_pipe *ce_state,
 						void **per_transfer_contextp,
 						u32 *bufferp,
 						unsigned int *nbytesp,
@@ -640,7 +640,7 @@ static int ath10k_ce_completed_send_next_nolock(struct ce_state *ce_state,
 }
 
 /* NB: Modeled after ath10k_ce_completed_send_next */
-int ath10k_ce_cancel_send_next(struct ce_state *ce_state,
+int ath10k_ce_cancel_send_next(struct ath10k_ce_pipe *ce_state,
 			       void **per_transfer_contextp,
 			       u32 *bufferp,
 			       unsigned int *nbytesp,
@@ -698,7 +698,7 @@ int ath10k_ce_cancel_send_next(struct ce_state *ce_state,
 	return ret;
 }
 
-int ath10k_ce_completed_send_next(struct ce_state *ce_state,
+int ath10k_ce_completed_send_next(struct ath10k_ce_pipe *ce_state,
 				  void **per_transfer_contextp,
 				  u32 *bufferp,
 				  unsigned int *nbytesp,
@@ -727,7 +727,7 @@ int ath10k_ce_completed_send_next(struct ce_state *ce_state,
 void ath10k_ce_per_engine_service(struct ath10k *ar, unsigned int ce_id)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	struct ce_state *ce_state = &ar_pci->ce_states[ce_id];
+	struct ath10k_ce_pipe *ce_state = &ar_pci->ce_states[ce_id];
 	u32 ctrl_addr = ce_state->ctrl_addr;
 	void *transfer_context;
 	u32 buf;
@@ -820,7 +820,7 @@ void ath10k_ce_per_engine_service_any(struct ath10k *ar)
  *
  * Called with ce_lock held.
  */
-static void ath10k_ce_per_engine_handler_adjust(struct ce_state *ce_state,
+static void ath10k_ce_per_engine_handler_adjust(struct ath10k_ce_pipe *ce_state,
 						int disable_copy_compl_intr)
 {
 	u32 ctrl_addr = ce_state->ctrl_addr;
@@ -846,7 +846,7 @@ void ath10k_ce_disable_interrupts(struct ath10k *ar)
 
 	ath10k_pci_wake(ar);
 	for (ce_id = 0; ce_id < ar_pci->ce_count; ce_id++) {
-		struct ce_state *ce_state = &ar_pci->ce_states[ce_id];
+		struct ath10k_ce_pipe *ce_state = &ar_pci->ce_states[ce_id];
 		u32 ctrl_addr = ce_state->ctrl_addr;
 
 		ath10k_ce_copy_complete_intr_disable(ar, ctrl_addr);
@@ -854,12 +854,12 @@ void ath10k_ce_disable_interrupts(struct ath10k *ar)
 	ath10k_pci_sleep(ar);
 }
 
-void ath10k_ce_send_cb_register(struct ce_state *ce_state,
-				void (*send_cb) (struct ce_state *ce_state,
-						 void *transfer_context,
-						 u32 buffer,
-						 unsigned int nbytes,
-						 unsigned int transfer_id),
+void ath10k_ce_send_cb_register(struct ath10k_ce_pipe *ce_state,
+				void (*send_cb)(struct ath10k_ce_pipe *ce_state,
+						void *transfer_context,
+						u32 buffer,
+						unsigned int nbytes,
+						unsigned int transfer_id),
 				int disable_interrupts)
 {
 	struct ath10k *ar = ce_state->ar;
@@ -871,13 +871,13 @@ void ath10k_ce_send_cb_register(struct ce_state *ce_state,
 	spin_unlock_bh(&ar_pci->ce_lock);
 }
 
-void ath10k_ce_recv_cb_register(struct ce_state *ce_state,
-				void (*recv_cb) (struct ce_state *ce_state,
-						 void *transfer_context,
-						 u32 buffer,
-						 unsigned int nbytes,
-						 unsigned int transfer_id,
-						 unsigned int flags))
+void ath10k_ce_recv_cb_register(struct ath10k_ce_pipe *ce_state,
+				void (*recv_cb)(struct ath10k_ce_pipe *ce_state,
+						void *transfer_context,
+						u32 buffer,
+						unsigned int nbytes,
+						unsigned int transfer_id,
+						unsigned int flags))
 {
 	struct ath10k *ar = ce_state->ar;
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
@@ -890,7 +890,7 @@ void ath10k_ce_recv_cb_register(struct ce_state *ce_state,
 
 static int ath10k_ce_init_src_ring(struct ath10k *ar,
 				   unsigned int ce_id,
-				   struct ce_state *ce_state,
+				   struct ath10k_ce_pipe *ce_state,
 				   const struct ce_attr *attr)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
@@ -993,7 +993,7 @@ static int ath10k_ce_init_src_ring(struct ath10k *ar,
 
 static int ath10k_ce_init_dest_ring(struct ath10k *ar,
 				    unsigned int ce_id,
-				    struct ce_state *ce_state,
+				    struct ath10k_ce_pipe *ce_state,
 				    const struct ce_attr *attr)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
@@ -1076,12 +1076,12 @@ static int ath10k_ce_init_dest_ring(struct ath10k *ar,
 	return 0;
 }
 
-static struct ce_state *ath10k_ce_init_state(struct ath10k *ar,
+static struct ath10k_ce_pipe *ath10k_ce_init_state(struct ath10k *ar,
 					     unsigned int ce_id,
 					     const struct ce_attr *attr)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	struct ce_state *ce_state = &ar_pci->ce_states[ce_id];
+	struct ath10k_ce_pipe *ce_state = &ar_pci->ce_states[ce_id];
 	u32 ctrl_addr = ath10k_ce_base_address(ce_id);
 
 	spin_lock_bh(&ar_pci->ce_lock);
@@ -1104,11 +1104,11 @@ static struct ce_state *ath10k_ce_init_state(struct ath10k *ar,
  * initialization. It may be that only one side or the other is
  * initialized by software/firmware.
  */
-struct ce_state *ath10k_ce_init(struct ath10k *ar,
+struct ath10k_ce_pipe *ath10k_ce_init(struct ath10k *ar,
 				unsigned int ce_id,
 				const struct ce_attr *attr)
 {
-	struct ce_state *ce_state;
+	struct ath10k_ce_pipe *ce_state;
 	u32 ctrl_addr = ath10k_ce_base_address(ce_id);
 	int ret;
 
@@ -1146,7 +1146,7 @@ struct ce_state *ath10k_ce_init(struct ath10k *ar,
 	return ce_state;
 }
 
-void ath10k_ce_deinit(struct ce_state *ce_state)
+void ath10k_ce_deinit(struct ath10k_ce_pipe *ce_state)
 {
 	struct ath10k *ar = ce_state->ar;
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
diff --git a/drivers/net/wireless/ath/ath10k/ce.h b/drivers/net/wireless/ath/ath10k/ce.h
index ce4cbbf01005..ac850c0b711a 100644
--- a/drivers/net/wireless/ath/ath10k/ce.h
+++ b/drivers/net/wireless/ath/ath10k/ce.h
@@ -36,7 +36,7 @@
  * how to use copy engines.
  */
 
-struct ce_state;
+struct ath10k_ce_pipe;
 
 
 #define CE_DESC_FLAGS_GATHER         (1 << 0)
@@ -109,8 +109,7 @@ struct ce_ring_state {
 	void **per_transfer_context;
 };
 
-/* Copy Engine internal state */
-struct ce_state {
+struct ath10k_ce_pipe {
 	struct ath10k *ar;
 	unsigned int id;
 
@@ -118,12 +117,12 @@ struct ce_state {
 
 	u32 ctrl_addr;
 
-	void (*send_cb) (struct ce_state *ce_state,
+	void (*send_cb) (struct ath10k_ce_pipe *ce_state,
 			 void *per_transfer_send_context,
 			 u32 buffer,
 			 unsigned int nbytes,
 			 unsigned int transfer_id);
-	void (*recv_cb) (struct ce_state *ce_state,
+	void (*recv_cb) (struct ath10k_ce_pipe *ce_state,
 			 void *per_transfer_recv_context,
 			 u32 buffer,
 			 unsigned int nbytes,
@@ -174,7 +173,7 @@ struct ce_attr;
  *
  * Implementation note: pushes 1 buffer to Source ring
  */
-int ath10k_ce_send(struct ce_state *ce_state,
+int ath10k_ce_send(struct ath10k_ce_pipe *ce_state,
 		   void *per_transfer_send_context,
 		   u32 buffer,
 		   unsigned int nbytes,
@@ -182,12 +181,12 @@ int ath10k_ce_send(struct ce_state *ce_state,
 		   unsigned int transfer_id,
 		   unsigned int flags);
 
-void ath10k_ce_send_cb_register(struct ce_state *ce_state,
-				void (*send_cb) (struct ce_state *ce_state,
-						 void *transfer_context,
-						 u32 buffer,
-						 unsigned int nbytes,
-						 unsigned int transfer_id),
+void ath10k_ce_send_cb_register(struct ath10k_ce_pipe *ce_state,
+				void (*send_cb)(struct ath10k_ce_pipe *ce_state,
+						void *transfer_context,
+						u32 buffer,
+						unsigned int nbytes,
+						unsigned int transfer_id),
 				int disable_interrupts);
 
 /* Append a simple buffer (address/length) to a sendlist. */
@@ -207,7 +206,7 @@ void ath10k_ce_sendlist_buf_add(struct ce_sendlist *sendlist,
  *
  * Implemenation note: Pushes multiple buffers with Gather to Source ring.
  */
-int ath10k_ce_sendlist_send(struct ce_state *ce_state,
+int ath10k_ce_sendlist_send(struct ath10k_ce_pipe *ce_state,
 			    void *per_transfer_send_context,
 			    struct ce_sendlist *sendlist,
 			    /* 14 bits */
@@ -225,17 +224,17 @@ int ath10k_ce_sendlist_send(struct ce_state *ce_state,
  *
  * Implemenation note: Pushes a buffer to Dest ring.
  */
-int ath10k_ce_recv_buf_enqueue(struct ce_state *ce_state,
+int ath10k_ce_recv_buf_enqueue(struct ath10k_ce_pipe *ce_state,
 			       void *per_transfer_recv_context,
 			       u32 buffer);
 
-void ath10k_ce_recv_cb_register(struct ce_state *ce_state,
-				void (*recv_cb) (struct ce_state *ce_state,
-						 void *transfer_context,
-						 u32 buffer,
-						 unsigned int nbytes,
-						 unsigned int transfer_id,
-						 unsigned int flags));
+void ath10k_ce_recv_cb_register(struct ath10k_ce_pipe *ce_state,
+				void (*recv_cb)(struct ath10k_ce_pipe *ce_state,
+						void *transfer_context,
+						u32 buffer,
+						unsigned int nbytes,
+						unsigned int transfer_id,
+						unsigned int flags));
 
 /* recv flags */
 /* Data is byte-swapped */
@@ -245,7 +244,7 @@ void ath10k_ce_recv_cb_register(struct ce_state *ce_state,
  * Supply data for the next completed unprocessed receive descriptor.
  * Pops buffer from Dest ring.
  */
-int ath10k_ce_completed_recv_next(struct ce_state *ce_state,
+int ath10k_ce_completed_recv_next(struct ath10k_ce_pipe *ce_state,
 				  void **per_transfer_contextp,
 				  u32 *bufferp,
 				  unsigned int *nbytesp,
@@ -255,7 +254,7 @@ int ath10k_ce_completed_recv_next(struct ce_state *ce_state,
  * Supply data for the next completed unprocessed send descriptor.
  * Pops 1 completed send buffer from Source ring.
  */
-int ath10k_ce_completed_send_next(struct ce_state *ce_state,
+int ath10k_ce_completed_send_next(struct ath10k_ce_pipe *ce_state,
 			   void **per_transfer_contextp,
 			   u32 *bufferp,
 			   unsigned int *nbytesp,
@@ -264,7 +263,7 @@ int ath10k_ce_completed_send_next(struct ce_state *ce_state,
 /*==================CE Engine Initialization=======================*/
 
 /* Initialize an instance of a CE */
-struct ce_state *ath10k_ce_init(struct ath10k *ar,
+struct ath10k_ce_pipe *ath10k_ce_init(struct ath10k *ar,
 				unsigned int ce_id,
 				const struct ce_attr *attr);
 
@@ -274,7 +273,7 @@ struct ce_state *ath10k_ce_init(struct ath10k *ar,
  * receive buffers.  Target DMA must be stopped before using
  * this API.
  */
-int ath10k_ce_revoke_recv_next(struct ce_state *ce_state,
+int ath10k_ce_revoke_recv_next(struct ath10k_ce_pipe *ce_state,
 			       void **per_transfer_contextp,
 			       u32 *bufferp);
 
@@ -283,13 +282,13 @@ int ath10k_ce_revoke_recv_next(struct ce_state *ce_state,
  * pending sends.  Target DMA must be stopped before using
  * this API.
  */
-int ath10k_ce_cancel_send_next(struct ce_state *ce_state,
+int ath10k_ce_cancel_send_next(struct ath10k_ce_pipe *ce_state,
 			       void **per_transfer_contextp,
 			       u32 *bufferp,
 			       unsigned int *nbytesp,
 			       unsigned int *transfer_idp);
 
-void ath10k_ce_deinit(struct ce_state *ce_state);
+void ath10k_ce_deinit(struct ath10k_ce_pipe *ce_state);
 
 /*==================CE Interrupt Handlers====================*/
 void ath10k_ce_per_engine_service_any(struct ath10k *ar);
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index b740960a3698..ee095bdb2c33 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -112,7 +112,7 @@ static int ath10k_pci_diag_read_mem(struct ath10k *ar, u32 address, void *data,
 	unsigned int completed_nbytes, orig_nbytes, remaining_bytes;
 	unsigned int id;
 	unsigned int flags;
-	struct ce_state *ce_diag;
+	struct ath10k_ce_pipe *ce_diag;
 	/* Host buffer address in CE space */
 	u32 ce_data;
 	dma_addr_t ce_data_base = 0;
@@ -276,7 +276,7 @@ static int ath10k_pci_diag_write_mem(struct ath10k *ar, u32 address,
 	unsigned int completed_nbytes, orig_nbytes, remaining_bytes;
 	unsigned int id;
 	unsigned int flags;
-	struct ce_state *ce_diag;
+	struct ath10k_ce_pipe *ce_diag;
 	void *data_buf = NULL;
 	u32 ce_data;	/* Host buffer address in CE space */
 	dma_addr_t ce_data_base = 0;
@@ -509,7 +509,7 @@ exit:
 }
 
 /* Called by lower (CE) layer when a send to Target completes. */
-static void ath10k_pci_ce_send_done(struct ce_state *ce_state,
+static void ath10k_pci_ce_send_done(struct ath10k_ce_pipe *ce_state,
 				    void *transfer_context,
 				    u32 ce_data,
 				    unsigned int nbytes,
@@ -571,7 +571,7 @@ static void ath10k_pci_ce_send_done(struct ce_state *ce_state,
 }
 
 /* Called by lower (CE) layer when data is received from the Target. */
-static void ath10k_pci_ce_recv_data(struct ce_state *ce_state,
+static void ath10k_pci_ce_recv_data(struct ath10k_ce_pipe *ce_state,
 				    void *transfer_context, u32 ce_data,
 				    unsigned int nbytes,
 				    unsigned int transfer_id,
@@ -624,7 +624,7 @@ static int ath10k_pci_hif_send_head(struct ath10k *ar, u8 pipe_id,
 	struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(nbuf);
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 	struct ath10k_pci_pipe *pipe_info = &(ar_pci->pipe_info[pipe_id]);
-	struct ce_state *ce_hdl = pipe_info->ce_hdl;
+	struct ath10k_ce_pipe *ce_hdl = pipe_info->ce_hdl;
 	struct ce_sendlist sendlist;
 	unsigned int len;
 	u32 flags = 0;
@@ -762,7 +762,7 @@ static void ath10k_pci_hif_set_callbacks(struct ath10k *ar,
 static int ath10k_pci_start_ce(struct ath10k *ar)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	struct ce_state *ce_diag = ar_pci->ce_diag;
+	struct ath10k_ce_pipe *ce_diag = ar_pci->ce_diag;
 	const struct ce_attr *attr;
 	struct ath10k_pci_pipe *pipe_info;
 	struct ath10k_pci_compl *compl;
@@ -1049,7 +1049,7 @@ static int ath10k_pci_post_rx_pipe(struct ath10k_pci_pipe *pipe_info,
 {
 	struct ath10k *ar = pipe_info->hif_ce_state;
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	struct ce_state *ce_state = pipe_info->ce_hdl;
+	struct ath10k_ce_pipe *ce_state = pipe_info->ce_hdl;
 	struct sk_buff *skb;
 	dma_addr_t ce_data;
 	int i, ret = 0;
@@ -1158,7 +1158,7 @@ static void ath10k_pci_rx_pipe_cleanup(struct ath10k_pci_pipe *pipe_info)
 {
 	struct ath10k *ar;
 	struct ath10k_pci *ar_pci;
-	struct ce_state *ce_hdl;
+	struct ath10k_ce_pipe *ce_hdl;
 	u32 buf_sz;
 	struct sk_buff *netbuf;
 	u32 ce_data;
@@ -1190,7 +1190,7 @@ static void ath10k_pci_tx_pipe_cleanup(struct ath10k_pci_pipe *pipe_info)
 {
 	struct ath10k *ar;
 	struct ath10k_pci *ar_pci;
-	struct ce_state *ce_hdl;
+	struct ath10k_ce_pipe *ce_hdl;
 	struct sk_buff *netbuf;
 	u32 ce_data;
 	unsigned int nbytes;
@@ -1300,8 +1300,10 @@ static int ath10k_pci_hif_exchange_bmi_msg(struct ath10k *ar,
 					   void *resp, u32 *resp_len)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	struct ce_state *ce_tx = ar_pci->pipe_info[BMI_CE_NUM_TO_TARG].ce_hdl;
-	struct ce_state *ce_rx = ar_pci->pipe_info[BMI_CE_NUM_TO_HOST].ce_hdl;
+	struct ath10k_pci_pipe *pci_tx = &ar_pci->pipe_info[BMI_CE_NUM_TO_TARG];
+	struct ath10k_pci_pipe *pci_rx = &ar_pci->pipe_info[BMI_CE_NUM_TO_HOST];
+	struct ath10k_ce_pipe *ce_tx = pci_tx->ce_hdl;
+	struct ath10k_ce_pipe *ce_rx = pci_rx->ce_hdl;
 	dma_addr_t req_paddr = 0;
 	dma_addr_t resp_paddr = 0;
 	struct bmi_xfer xfer = {};
@@ -1385,7 +1387,7 @@ err_dma:
 	return ret;
 }
 
-static void ath10k_pci_bmi_send_done(struct ce_state *ce_state,
+static void ath10k_pci_bmi_send_done(struct ath10k_ce_pipe *ce_state,
 				     void *transfer_context,
 				     u32 data,
 				     unsigned int nbytes,
@@ -1399,7 +1401,7 @@ static void ath10k_pci_bmi_send_done(struct ce_state *ce_state,
 	complete(&xfer->done);
 }
 
-static void ath10k_pci_bmi_recv_data(struct ce_state *ce_state,
+static void ath10k_pci_bmi_recv_data(struct ath10k_ce_pipe *ce_state,
 				     void *transfer_context,
 				     u32 data,
 				     unsigned int nbytes,
diff --git a/drivers/net/wireless/ath/ath10k/pci.h b/drivers/net/wireless/ath/ath10k/pci.h
index 021172ca249c..2e64931186c1 100644
--- a/drivers/net/wireless/ath/ath10k/pci.h
+++ b/drivers/net/wireless/ath/ath10k/pci.h
@@ -52,7 +52,7 @@ enum ath10k_pci_compl_state {
 struct ath10k_pci_compl {
 	struct list_head list;
 	enum ath10k_pci_compl_state state;
-	struct ce_state *ce_state;
+	struct ath10k_ce_pipe *ce_state;
 	struct ath10k_pci_pipe *pipe_info;
 	void *transfer_context;
 	unsigned int nbytes;
@@ -162,7 +162,7 @@ enum ath10k_pci_features {
 /* Per-pipe state. */
 struct ath10k_pci_pipe {
 	/* Handle of underlying Copy Engine */
-	struct ce_state *ce_hdl;
+	struct ath10k_ce_pipe *ce_hdl;
 
 	/* Our pipe number; facilitiates use of pipe_info ptrs. */
 	u8 pipe_num;
@@ -227,13 +227,13 @@ struct ath10k_pci {
 	u32 fw_indicator_address;
 
 	/* Copy Engine used for Diagnostic Accesses */
-	struct ce_state *ce_diag;
+	struct ath10k_ce_pipe *ce_diag;
 
 	/* FIXME: document what this really protects */
 	spinlock_t ce_lock;
 
 	/* Map CE id to ce_state */
-	struct ce_state ce_states[CE_COUNT_MAX];
+	struct ath10k_ce_pipe ce_states[CE_COUNT_MAX];
 };
 
 static inline struct ath10k_pci *ath10k_pci_priv(struct ath10k *ar)
-- 
cgit 


From d21fb959d140484beb755854e7bae2f2b3cd44cb Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Tue, 27 Aug 2013 13:08:03 +0200
Subject: ath10k: rename ce_ring_state to ath10k_ce_ring

The new naming makes more sense.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/ce.c | 30 +++++++++++++++---------------
 drivers/net/wireless/ath/ath10k/ce.h |  7 +++----
 2 files changed, 18 insertions(+), 19 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index 15679d93ff8f..dd80c24582f3 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -264,7 +264,7 @@ static int ath10k_ce_send_nolock(struct ath10k_ce_pipe *ce_state,
 				 unsigned int flags)
 {
 	struct ath10k *ar = ce_state->ar;
-	struct ce_ring_state *src_ring = ce_state->src_ring;
+	struct ath10k_ce_ring *src_ring = ce_state->src_ring;
 	struct ce_desc *desc, *sdesc;
 	unsigned int nentries_mask = src_ring->nentries_mask;
 	unsigned int sw_index = src_ring->sw_index;
@@ -354,7 +354,7 @@ int ath10k_ce_sendlist_send(struct ath10k_ce_pipe *ce_state,
 			    struct ce_sendlist *sendlist,
 			    unsigned int transfer_id)
 {
-	struct ce_ring_state *src_ring = ce_state->src_ring;
+	struct ath10k_ce_ring *src_ring = ce_state->src_ring;
 	struct ce_sendlist_item *item;
 	struct ath10k *ar = ce_state->ar;
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
@@ -406,7 +406,7 @@ int ath10k_ce_recv_buf_enqueue(struct ath10k_ce_pipe *ce_state,
 			       void *per_recv_context,
 			       u32 buffer)
 {
-	struct ce_ring_state *dest_ring = ce_state->dest_ring;
+	struct ath10k_ce_ring *dest_ring = ce_state->dest_ring;
 	u32 ctrl_addr = ce_state->ctrl_addr;
 	struct ath10k *ar = ce_state->ar;
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
@@ -457,7 +457,7 @@ static int ath10k_ce_completed_recv_next_nolock(struct ath10k_ce_pipe *ce_state,
 						unsigned int *transfer_idp,
 						unsigned int *flagsp)
 {
-	struct ce_ring_state *dest_ring = ce_state->dest_ring;
+	struct ath10k_ce_ring *dest_ring = ce_state->dest_ring;
 	unsigned int nentries_mask = dest_ring->nentries_mask;
 	unsigned int sw_index = dest_ring->sw_index;
 
@@ -531,7 +531,7 @@ int ath10k_ce_revoke_recv_next(struct ath10k_ce_pipe *ce_state,
 			       void **per_transfer_contextp,
 			       u32 *bufferp)
 {
-	struct ce_ring_state *dest_ring;
+	struct ath10k_ce_ring *dest_ring;
 	unsigned int nentries_mask;
 	unsigned int sw_index;
 	unsigned int write_index;
@@ -589,7 +589,7 @@ static int ath10k_ce_completed_send_next_nolock(struct ath10k_ce_pipe *ce_state,
 						unsigned int *nbytesp,
 						unsigned int *transfer_idp)
 {
-	struct ce_ring_state *src_ring = ce_state->src_ring;
+	struct ath10k_ce_ring *src_ring = ce_state->src_ring;
 	u32 ctrl_addr = ce_state->ctrl_addr;
 	struct ath10k *ar = ce_state->ar;
 	unsigned int nentries_mask = src_ring->nentries_mask;
@@ -646,7 +646,7 @@ int ath10k_ce_cancel_send_next(struct ath10k_ce_pipe *ce_state,
 			       unsigned int *nbytesp,
 			       unsigned int *transfer_idp)
 {
-	struct ce_ring_state *src_ring;
+	struct ath10k_ce_ring *src_ring;
 	unsigned int nentries_mask;
 	unsigned int sw_index;
 	unsigned int write_index;
@@ -894,7 +894,7 @@ static int ath10k_ce_init_src_ring(struct ath10k *ar,
 				   const struct ce_attr *attr)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	struct ce_ring_state *src_ring;
+	struct ath10k_ce_ring *src_ring;
 	unsigned int nentries = attr->src_nentries;
 	unsigned int ce_nbytes;
 	u32 ctrl_addr = ath10k_ce_base_address(ce_id);
@@ -908,15 +908,15 @@ static int ath10k_ce_init_src_ring(struct ath10k *ar,
 		return 0;
 	}
 
-	ce_nbytes = sizeof(struct ce_ring_state) + (nentries * sizeof(void *));
+	ce_nbytes = sizeof(struct ath10k_ce_ring) + (nentries * sizeof(void *));
 	ptr = kzalloc(ce_nbytes, GFP_KERNEL);
 	if (ptr == NULL)
 		return -ENOMEM;
 
-	ce_state->src_ring = (struct ce_ring_state *)ptr;
+	ce_state->src_ring = (struct ath10k_ce_ring *)ptr;
 	src_ring = ce_state->src_ring;
 
-	ptr += sizeof(struct ce_ring_state);
+	ptr += sizeof(struct ath10k_ce_ring);
 	src_ring->nentries = nentries;
 	src_ring->nentries_mask = nentries - 1;
 
@@ -997,7 +997,7 @@ static int ath10k_ce_init_dest_ring(struct ath10k *ar,
 				    const struct ce_attr *attr)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	struct ce_ring_state *dest_ring;
+	struct ath10k_ce_ring *dest_ring;
 	unsigned int nentries = attr->dest_nentries;
 	unsigned int ce_nbytes;
 	u32 ctrl_addr = ath10k_ce_base_address(ce_id);
@@ -1011,15 +1011,15 @@ static int ath10k_ce_init_dest_ring(struct ath10k *ar,
 		return 0;
 	}
 
-	ce_nbytes = sizeof(struct ce_ring_state) + (nentries * sizeof(void *));
+	ce_nbytes = sizeof(struct ath10k_ce_ring) + (nentries * sizeof(void *));
 	ptr = kzalloc(ce_nbytes, GFP_KERNEL);
 	if (ptr == NULL)
 		return -ENOMEM;
 
-	ce_state->dest_ring = (struct ce_ring_state *)ptr;
+	ce_state->dest_ring = (struct ath10k_ce_ring *)ptr;
 	dest_ring = ce_state->dest_ring;
 
-	ptr += sizeof(struct ce_ring_state);
+	ptr += sizeof(struct ath10k_ce_ring);
 	dest_ring->nentries = nentries;
 	dest_ring->nentries_mask = nentries - 1;
 
diff --git a/drivers/net/wireless/ath/ath10k/ce.h b/drivers/net/wireless/ath/ath10k/ce.h
index ac850c0b711a..cfef7d0fc5c4 100644
--- a/drivers/net/wireless/ath/ath10k/ce.h
+++ b/drivers/net/wireless/ath/ath10k/ce.h
@@ -50,8 +50,7 @@ struct ce_desc {
 	__le16 flags; /* %CE_DESC_FLAGS_ */
 };
 
-/* Copy Engine Ring internal state */
-struct ce_ring_state {
+struct ath10k_ce_ring {
 	/* Number of entries in this ring; must be power of 2 */
 	unsigned int nentries;
 	unsigned int nentries_mask;
@@ -130,8 +129,8 @@ struct ath10k_ce_pipe {
 			 unsigned int flags);
 
 	unsigned int src_sz_max;
-	struct ce_ring_state *src_ring;
-	struct ce_ring_state *dest_ring;
+	struct ath10k_ce_ring *src_ring;
+	struct ath10k_ce_ring *dest_ring;
 };
 
 struct ce_sendlist_item {
-- 
cgit 


From a18b5ed8d2da1ccf572c5728b2de78bc86aef1c7 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Fri, 2 Aug 2013 10:56:01 +0300
Subject: ath10k: remove un ar_pci->cacheline_sz field

cacheline_sz is not used anywhere and can be removed.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 2 --
 drivers/net/wireless/ath/ath10k/pci.h | 1 -
 2 files changed, 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index ee095bdb2c33..551fe8c1ee98 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -2394,8 +2394,6 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
 
 	spin_lock_init(&ar_pci->ce_lock);
 
-	ar_pci->cacheline_sz = dma_get_cache_alignment();
-
 	ret = ath10k_core_register(ar);
 	if (ret) {
 		ath10k_err("could not register driver core (%d)\n", ret);
diff --git a/drivers/net/wireless/ath/ath10k/pci.h b/drivers/net/wireless/ath/ath10k/pci.h
index 2e64931186c1..50f3e7b4f27f 100644
--- a/drivers/net/wireless/ath/ath10k/pci.h
+++ b/drivers/net/wireless/ath/ath10k/pci.h
@@ -190,7 +190,6 @@ struct ath10k_pci {
 	struct device *dev;
 	struct ath10k *ar;
 	void __iomem *mem;
-	int cacheline_sz;
 
 	DECLARE_BITMAP(features, ATH10K_PCI_FEATURE_COUNT);
 
-- 
cgit 


From 48e9c225abf362c520d07621eff189c7ddb1a9da Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Sun, 1 Sep 2013 10:01:32 +0300
Subject: ath10k: pci: make host_ce_config_wlan[] more readable

It's much more readable if struct entries in host_ce_config_wlan
are explicitly set.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 81 +++++++++++++++++++++++++++--------
 1 file changed, 63 insertions(+), 18 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 551fe8c1ee98..b1709d7a5c48 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -58,24 +58,69 @@ static int ath10k_pci_start_intr(struct ath10k *ar);
 static void ath10k_pci_stop_intr(struct ath10k *ar);
 
 static const struct ce_attr host_ce_config_wlan[] = {
-	/* host->target HTC control and raw streams */
-	{ /* CE0 */ CE_ATTR_FLAGS, 16, 256, 0 },
-	/* could be moved to share CE3 */
-	/* target->host HTT + HTC control */
-	{ /* CE1 */ CE_ATTR_FLAGS, 0, 512, 512 },
-	/* target->host WMI */
-	{ /* CE2 */ CE_ATTR_FLAGS, 0, 2048, 32 },
-	/* host->target WMI */
-	{ /* CE3 */ CE_ATTR_FLAGS, 32, 2048, 0 },
-	/* host->target HTT */
-	{ /* CE4 */ CE_ATTR_FLAGS | CE_ATTR_DIS_INTR,
-		    CE_HTT_H2T_MSG_SRC_NENTRIES, 256, 0 },
-	/* unused */
-	{ /* CE5 */ CE_ATTR_FLAGS, 0, 0, 0 },
-	/* Target autonomous hif_memcpy */
-	{ /* CE6 */ CE_ATTR_FLAGS, 0, 0, 0 },
-	/* ce_diag, the Diagnostic Window */
-	{ /* CE7 */ CE_ATTR_FLAGS, 2, DIAG_TRANSFER_LIMIT, 2 },
+	/* CE0: host->target HTC control and raw streams */
+	{
+		.flags = CE_ATTR_FLAGS,
+		.src_nentries = 16,
+		.src_sz_max = 256,
+		.dest_nentries = 0,
+	},
+
+	/* CE1: target->host HTT + HTC control */
+	{
+		.flags = CE_ATTR_FLAGS,
+		.src_nentries = 0,
+		.src_sz_max = 512,
+		.dest_nentries = 512,
+	},
+
+	/* CE2: target->host WMI */
+	{
+		.flags = CE_ATTR_FLAGS,
+		.src_nentries = 0,
+		.src_sz_max = 2048,
+		.dest_nentries = 32,
+	},
+
+	/* CE3: host->target WMI */
+	{
+		.flags = CE_ATTR_FLAGS,
+		.src_nentries = 32,
+		.src_sz_max = 2048,
+		.dest_nentries = 0,
+	},
+
+	/* CE4: host->target HTT */
+	{
+		.flags = CE_ATTR_FLAGS | CE_ATTR_DIS_INTR,
+		.src_nentries = CE_HTT_H2T_MSG_SRC_NENTRIES,
+		.src_sz_max = 256,
+		.dest_nentries = 0,
+	},
+
+	/* CE5: unused */
+	{
+		.flags = CE_ATTR_FLAGS,
+		.src_nentries = 0,
+		.src_sz_max = 0,
+		.dest_nentries = 0,
+	},
+
+	/* CE6: target autonomous hif_memcpy */
+	{
+		.flags = CE_ATTR_FLAGS,
+		.src_nentries = 0,
+		.src_sz_max = 0,
+		.dest_nentries = 0,
+	},
+
+	/* CE7: ce_diag, the Diagnostic Window */
+	{
+		.flags = CE_ATTR_FLAGS,
+		.src_nentries = 2,
+		.src_sz_max = DIAG_TRANSFER_LIMIT,
+		.dest_nentries = 2,
+	},
 };
 
 /* Target firmware's Copy Engine configuration. */
-- 
cgit 


From d88effbaa6878eaf48ad5da453d3159c500da563 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Sun, 1 Sep 2013 10:01:39 +0300
Subject: ath10k: make target_ce_config_wlan more readable

It's easier to read t if the field names are visible.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 85 +++++++++++++++++++++++++++++------
 1 file changed, 71 insertions(+), 14 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index b1709d7a5c48..362814ab5965 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -125,21 +125,78 @@ static const struct ce_attr host_ce_config_wlan[] = {
 
 /* Target firmware's Copy Engine configuration. */
 static const struct ce_pipe_config target_ce_config_wlan[] = {
-	/* host->target HTC control and raw streams */
-	{ /* CE0 */ 0, PIPEDIR_OUT, 32, 256, CE_ATTR_FLAGS, 0,},
-	/* target->host HTT + HTC control */
-	{ /* CE1 */ 1, PIPEDIR_IN, 32, 512, CE_ATTR_FLAGS, 0,},
-	/* target->host WMI */
-	{ /* CE2 */ 2, PIPEDIR_IN, 32, 2048, CE_ATTR_FLAGS, 0,},
-	/* host->target WMI */
-	{ /* CE3 */ 3, PIPEDIR_OUT, 32, 2048, CE_ATTR_FLAGS, 0,},
-	/* host->target HTT */
-	{ /* CE4 */ 4, PIPEDIR_OUT, 256, 256, CE_ATTR_FLAGS, 0,},
+	/* CE0: host->target HTC control and raw streams */
+	{
+		.pipenum = 0,
+		.pipedir = PIPEDIR_OUT,
+		.nentries = 32,
+		.nbytes_max = 256,
+		.flags = CE_ATTR_FLAGS,
+		.reserved = 0,
+	},
+
+	/* CE1: target->host HTT + HTC control */
+	{
+		.pipenum = 1,
+		.pipedir = PIPEDIR_IN,
+		.nentries = 32,
+		.nbytes_max = 512,
+		.flags = CE_ATTR_FLAGS,
+		.reserved = 0,
+	},
+
+	/* CE2: target->host WMI */
+	{
+		.pipenum = 2,
+		.pipedir = PIPEDIR_IN,
+		.nentries = 32,
+		.nbytes_max = 2048,
+		.flags = CE_ATTR_FLAGS,
+		.reserved = 0,
+	},
+
+	/* CE3: host->target WMI */
+	{
+		.pipenum = 3,
+		.pipedir = PIPEDIR_OUT,
+		.nentries = 32,
+		.nbytes_max = 2048,
+		.flags = CE_ATTR_FLAGS,
+		.reserved = 0,
+	},
+
+	/* CE4: host->target HTT */
+	{
+		.pipenum = 4,
+		.pipedir = PIPEDIR_OUT,
+		.nentries = 256,
+		.nbytes_max = 256,
+		.flags = CE_ATTR_FLAGS,
+		.reserved = 0,
+	},
+
 	/* NB: 50% of src nentries, since tx has 2 frags */
-	/* unused */
-	{ /* CE5 */ 5, PIPEDIR_OUT, 32, 2048, CE_ATTR_FLAGS, 0,},
-	/* Reserved for target autonomous hif_memcpy */
-	{ /* CE6 */ 6, PIPEDIR_INOUT, 32, 4096, CE_ATTR_FLAGS, 0,},
+
+	/* CE5: unused */
+	{
+		.pipenum = 5,
+		.pipedir = PIPEDIR_OUT,
+		.nentries = 32,
+		.nbytes_max = 2048,
+		.flags = CE_ATTR_FLAGS,
+		.reserved = 0,
+	},
+
+	/* CE6: Reserved for target autonomous hif_memcpy */
+	{
+		.pipenum = 6,
+		.pipedir = PIPEDIR_INOUT,
+		.nentries = 32,
+		.nbytes_max = 4096,
+		.flags = CE_ATTR_FLAGS,
+		.reserved = 0,
+	},
+
 	/* CE7 used only by Host */
 };
 
-- 
cgit 


From aa5c1db4451596be424f8df511aa5435a7d51e6c Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Sun, 1 Sep 2013 10:01:46 +0300
Subject: ath10k: remove void pointer from struct ath10k_pci_compl

Void pointers are bad, mmkay.

No functional changes.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 12 ++++++------
 drivers/net/wireless/ath/ath10k/pci.h |  2 +-
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 362814ab5965..418de1ecfc8a 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -643,7 +643,7 @@ static void ath10k_pci_ce_send_done(struct ath10k_ce_pipe *ce_state,
 		compl->state = ATH10K_PCI_COMPL_SEND;
 		compl->ce_state = ce_state;
 		compl->pipe_info = pipe_info;
-		compl->transfer_context = transfer_context;
+		compl->skb = transfer_context;
 		compl->nbytes = nbytes;
 		compl->transfer_id = transfer_id;
 		compl->flags = 0;
@@ -693,7 +693,7 @@ static void ath10k_pci_ce_recv_data(struct ath10k_ce_pipe *ce_state,
 		compl->state = ATH10K_PCI_COMPL_RECV;
 		compl->ce_state = ce_state;
 		compl->pipe_info = pipe_info;
-		compl->transfer_context = transfer_context;
+		compl->skb = transfer_context;
 		compl->nbytes = nbytes;
 		compl->transfer_id = transfer_id;
 		compl->flags = flags;
@@ -939,7 +939,7 @@ static void ath10k_pci_stop_ce(struct ath10k *ar)
 	 * their associated resources */
 	spin_lock_bh(&ar_pci->compl_lock);
 	list_for_each_entry(compl, &ar_pci->compl_process, list) {
-		skb = (struct sk_buff *)compl->transfer_context;
+		skb = compl->skb;
 		ATH10K_SKB_CB(skb)->is_aborted = true;
 	}
 	spin_unlock_bh(&ar_pci->compl_lock);
@@ -960,7 +960,7 @@ static void ath10k_pci_cleanup_ce(struct ath10k *ar)
 
 	list_for_each_entry_safe(compl, tmp, &ar_pci->compl_process, list) {
 		list_del(&compl->list);
-		netbuf = (struct sk_buff *)compl->transfer_context;
+		netbuf = compl->skb;
 		dev_kfree_skb_any(netbuf);
 		kfree(compl);
 	}
@@ -1014,7 +1014,7 @@ static void ath10k_pci_process_ce(struct ath10k *ar)
 		switch (compl->state) {
 		case ATH10K_PCI_COMPL_SEND:
 			cb->tx_completion(ar,
-					  compl->transfer_context,
+					  compl->skb,
 					  compl->transfer_id);
 			send_done = 1;
 			break;
@@ -1026,7 +1026,7 @@ static void ath10k_pci_process_ce(struct ath10k *ar)
 				break;
 			}
 
-			skb = (struct sk_buff *)compl->transfer_context;
+			skb = compl->skb;
 			nbytes = compl->nbytes;
 
 			ath10k_dbg(ATH10K_DBG_PCI,
diff --git a/drivers/net/wireless/ath/ath10k/pci.h b/drivers/net/wireless/ath/ath10k/pci.h
index 50f3e7b4f27f..2a6cb090b8b0 100644
--- a/drivers/net/wireless/ath/ath10k/pci.h
+++ b/drivers/net/wireless/ath/ath10k/pci.h
@@ -54,7 +54,7 @@ struct ath10k_pci_compl {
 	enum ath10k_pci_compl_state state;
 	struct ath10k_ce_pipe *ce_state;
 	struct ath10k_pci_pipe *pipe_info;
-	void *transfer_context;
+	struct sk_buff *skb;
 	unsigned int nbytes;
 	unsigned int transfer_id;
 	unsigned int flags;
-- 
cgit 


From e479ed437bb876c6f16e80a492223da2f449f221 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Sun, 1 Sep 2013 10:01:53 +0300
Subject: ath10k: convert ath10k_pci_reg_read/write32() to take struct ath10k

This is consistent with all other functions.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 19 +++++++------------
 drivers/net/wireless/ath/ath10k/pci.h | 12 ++++++++----
 2 files changed, 15 insertions(+), 16 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 418de1ecfc8a..e0cf75f5a8a1 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -2323,18 +2323,13 @@ static int ath10k_pci_reset_target(struct ath10k *ar)
 
 static void ath10k_pci_device_reset(struct ath10k *ar)
 {
-	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	void __iomem *mem = ar_pci->mem;
 	int i;
 	u32 val;
 
 	if (!SOC_GLOBAL_RESET_ADDRESS)
 		return;
 
-	if (!mem)
-		return;
-
-	ath10k_pci_reg_write32(mem, PCIE_SOC_WAKE_ADDRESS,
+	ath10k_pci_reg_write32(ar, PCIE_SOC_WAKE_ADDRESS,
 			       PCIE_SOC_WAKE_V_MASK);
 	for (i = 0; i < ATH_PCI_RESET_WAIT_MAX; i++) {
 		if (ath10k_pci_target_is_awake(ar))
@@ -2343,12 +2338,12 @@ static void ath10k_pci_device_reset(struct ath10k *ar)
 	}
 
 	/* Put Target, including PCIe, into RESET. */
-	val = ath10k_pci_reg_read32(mem, SOC_GLOBAL_RESET_ADDRESS);
+	val = ath10k_pci_reg_read32(ar, SOC_GLOBAL_RESET_ADDRESS);
 	val |= 1;
-	ath10k_pci_reg_write32(mem, SOC_GLOBAL_RESET_ADDRESS, val);
+	ath10k_pci_reg_write32(ar, SOC_GLOBAL_RESET_ADDRESS, val);
 
 	for (i = 0; i < ATH_PCI_RESET_WAIT_MAX; i++) {
-		if (ath10k_pci_reg_read32(mem, RTC_STATE_ADDRESS) &
+		if (ath10k_pci_reg_read32(ar, RTC_STATE_ADDRESS) &
 					  RTC_STATE_COLD_RESET_MASK)
 			break;
 		msleep(1);
@@ -2356,16 +2351,16 @@ static void ath10k_pci_device_reset(struct ath10k *ar)
 
 	/* Pull Target, including PCIe, out of RESET. */
 	val &= ~1;
-	ath10k_pci_reg_write32(mem, SOC_GLOBAL_RESET_ADDRESS, val);
+	ath10k_pci_reg_write32(ar, SOC_GLOBAL_RESET_ADDRESS, val);
 
 	for (i = 0; i < ATH_PCI_RESET_WAIT_MAX; i++) {
-		if (!(ath10k_pci_reg_read32(mem, RTC_STATE_ADDRESS) &
+		if (!(ath10k_pci_reg_read32(ar, RTC_STATE_ADDRESS) &
 					    RTC_STATE_COLD_RESET_MASK))
 			break;
 		msleep(1);
 	}
 
-	ath10k_pci_reg_write32(mem, PCIE_SOC_WAKE_ADDRESS, PCIE_SOC_WAKE_RESET);
+	ath10k_pci_reg_write32(ar, PCIE_SOC_WAKE_ADDRESS, PCIE_SOC_WAKE_RESET);
 }
 
 static void ath10k_pci_dump_features(struct ath10k_pci *ar_pci)
diff --git a/drivers/net/wireless/ath/ath10k/pci.h b/drivers/net/wireless/ath/ath10k/pci.h
index 2a6cb090b8b0..395f61021829 100644
--- a/drivers/net/wireless/ath/ath10k/pci.h
+++ b/drivers/net/wireless/ath/ath10k/pci.h
@@ -240,14 +240,18 @@ static inline struct ath10k_pci *ath10k_pci_priv(struct ath10k *ar)
 	return ar->hif.priv;
 }
 
-static inline u32 ath10k_pci_reg_read32(void __iomem *mem, u32 addr)
+static inline u32 ath10k_pci_reg_read32(struct ath10k *ar, u32 addr)
 {
-	return ioread32(mem + PCIE_LOCAL_BASE_ADDRESS + addr);
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+
+	return ioread32(ar_pci->mem + PCIE_LOCAL_BASE_ADDRESS + addr);
 }
 
-static inline void ath10k_pci_reg_write32(void __iomem *mem, u32 addr, u32 val)
+static inline void ath10k_pci_reg_write32(struct ath10k *ar, u32 addr, u32 val)
 {
-	iowrite32(val, mem + PCIE_LOCAL_BASE_ADDRESS + addr);
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+
+	iowrite32(val, ar_pci->mem + PCIE_LOCAL_BASE_ADDRESS + addr);
 }
 
 #define ATH_PCI_RESET_WAIT_MAX 10 /* ms */
-- 
cgit 


From a40d3e420d50156b7a43e66d5f5b40c444ebc5da Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Sun, 1 Sep 2013 10:02:00 +0300
Subject: ath10k: clean up ath10k_ce_completed_send_next_nolock()

The error handling was just weird, simplify it.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/ce.c | 41 ++++++++++++++++++------------------
 1 file changed, 21 insertions(+), 20 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index dd80c24582f3..6a8014219423 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -594,8 +594,8 @@ static int ath10k_ce_completed_send_next_nolock(struct ath10k_ce_pipe *ce_state,
 	struct ath10k *ar = ce_state->ar;
 	unsigned int nentries_mask = src_ring->nentries_mask;
 	unsigned int sw_index = src_ring->sw_index;
+	struct ce_desc *sdesc, *sbase;
 	unsigned int read_index;
-	int ret = -EIO;
 
 	if (src_ring->hw_index == sw_index) {
 		/*
@@ -611,32 +611,33 @@ static int ath10k_ce_completed_send_next_nolock(struct ath10k_ce_pipe *ce_state,
 		src_ring->hw_index &= nentries_mask;
 		ath10k_pci_sleep(ar);
 	}
+
 	read_index = src_ring->hw_index;
 
-	if ((read_index != sw_index) && (read_index != 0xffffffff)) {
-		struct ce_desc *sbase = src_ring->shadow_base;
-		struct ce_desc *sdesc = CE_SRC_RING_TO_DESC(sbase, sw_index);
+	if ((read_index == sw_index) || (read_index == 0xffffffff))
+		return -EIO;
 
-		/* Return data from completed source descriptor */
-		*bufferp = __le32_to_cpu(sdesc->addr);
-		*nbytesp = __le16_to_cpu(sdesc->nbytes);
-		*transfer_idp = MS(__le16_to_cpu(sdesc->flags),
-						CE_DESC_FLAGS_META_DATA);
+	sbase = src_ring->shadow_base;
+	sdesc = CE_SRC_RING_TO_DESC(sbase, sw_index);
 
-		if (per_transfer_contextp)
-			*per_transfer_contextp =
-				src_ring->per_transfer_context[sw_index];
+	/* Return data from completed source descriptor */
+	*bufferp = __le32_to_cpu(sdesc->addr);
+	*nbytesp = __le16_to_cpu(sdesc->nbytes);
+	*transfer_idp = MS(__le16_to_cpu(sdesc->flags),
+			   CE_DESC_FLAGS_META_DATA);
 
-		/* sanity */
-		src_ring->per_transfer_context[sw_index] = NULL;
+	if (per_transfer_contextp)
+		*per_transfer_contextp =
+			src_ring->per_transfer_context[sw_index];
 
-		/* Update sw_index */
-		sw_index = CE_RING_IDX_INCR(nentries_mask, sw_index);
-		src_ring->sw_index = sw_index;
-		ret = 0;
-	}
+	/* sanity */
+	src_ring->per_transfer_context[sw_index] = NULL;
 
-	return ret;
+	/* Update sw_index */
+	sw_index = CE_RING_IDX_INCR(nentries_mask, sw_index);
+	src_ring->sw_index = sw_index;
+
+	return 0;
 }
 
 /* NB: Modeled after ath10k_ce_completed_send_next */
-- 
cgit 


From 3aebe54b1c2158bd20c361501de7785c51c65dbe Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Sun, 1 Sep 2013 10:02:07 +0300
Subject: ath10k: convert ath10k_pci_wake() to return

We should not try to access hw if wakeup fails so add
proper error checking for that. Also add the timeout lenght
to the warning message.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/ce.c  | 43 +++++++++++++++++++++++++++--------
 drivers/net/wireless/ath/ath10k/pci.c | 11 +++++----
 drivers/net/wireless/ath/ath10k/pci.h |  8 ++++---
 3 files changed, 45 insertions(+), 17 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index 6a8014219423..19f23a22f854 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -277,7 +277,9 @@ static int ath10k_ce_send_nolock(struct ath10k_ce_pipe *ce_state,
 		ath10k_warn("%s: send more we can (nbytes: %d, max: %d)\n",
 			    __func__, nbytes, ce_state->src_sz_max);
 
-	ath10k_pci_wake(ar);
+	ret = ath10k_pci_wake(ar);
+	if (ret)
+		return ret;
 
 	if (unlikely(CE_RING_DELTA(nentries_mask,
 				   write_index, sw_index - 1) <= 0)) {
@@ -419,7 +421,9 @@ int ath10k_ce_recv_buf_enqueue(struct ath10k_ce_pipe *ce_state,
 	write_index = dest_ring->write_index;
 	sw_index = dest_ring->sw_index;
 
-	ath10k_pci_wake(ar);
+	ret = ath10k_pci_wake(ar);
+	if (ret)
+		goto out;
 
 	if (CE_RING_DELTA(nentries_mask, write_index, sw_index - 1) > 0) {
 		struct ce_desc *base = dest_ring->base_addr_owner_space;
@@ -441,6 +445,8 @@ int ath10k_ce_recv_buf_enqueue(struct ath10k_ce_pipe *ce_state,
 		ret = -EIO;
 	}
 	ath10k_pci_sleep(ar);
+
+out:
 	spin_unlock_bh(&ar_pci->ce_lock);
 
 	return ret;
@@ -596,6 +602,7 @@ static int ath10k_ce_completed_send_next_nolock(struct ath10k_ce_pipe *ce_state,
 	unsigned int sw_index = src_ring->sw_index;
 	struct ce_desc *sdesc, *sbase;
 	unsigned int read_index;
+	int ret;
 
 	if (src_ring->hw_index == sw_index) {
 		/*
@@ -605,10 +612,15 @@ static int ath10k_ce_completed_send_next_nolock(struct ath10k_ce_pipe *ce_state,
 		 * the SW has really caught up to the HW, or if the cached
 		 * value of the HW index has become stale.
 		 */
-		ath10k_pci_wake(ar);
+
+		ret = ath10k_pci_wake(ar);
+		if (ret)
+			return ret;
+
 		src_ring->hw_index =
 			ath10k_ce_src_ring_read_index_get(ar, ctrl_addr);
 		src_ring->hw_index &= nentries_mask;
+
 		ath10k_pci_sleep(ar);
 	}
 
@@ -735,8 +747,12 @@ void ath10k_ce_per_engine_service(struct ath10k *ar, unsigned int ce_id)
 	unsigned int nbytes;
 	unsigned int id;
 	unsigned int flags;
+	int ret;
+
+	ret = ath10k_pci_wake(ar);
+	if (ret)
+		return;
 
-	ath10k_pci_wake(ar);
 	spin_lock_bh(&ar_pci->ce_lock);
 
 	/* Clear the copy-complete interrupts that will be handled here. */
@@ -795,10 +811,13 @@ void ath10k_ce_per_engine_service(struct ath10k *ar, unsigned int ce_id)
 void ath10k_ce_per_engine_service_any(struct ath10k *ar)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	int ce_id;
+	int ce_id, ret;
 	u32 intr_summary;
 
-	ath10k_pci_wake(ar);
+	ret = ath10k_pci_wake(ar);
+	if (ret)
+		return;
+
 	intr_summary = CE_INTERRUPT_SUMMARY(ar);
 
 	for (ce_id = 0; intr_summary && (ce_id < ar_pci->ce_count); ce_id++) {
@@ -826,8 +845,11 @@ static void ath10k_ce_per_engine_handler_adjust(struct ath10k_ce_pipe *ce_state,
 {
 	u32 ctrl_addr = ce_state->ctrl_addr;
 	struct ath10k *ar = ce_state->ar;
+	int ret;
 
-	ath10k_pci_wake(ar);
+	ret = ath10k_pci_wake(ar);
+	if (ret)
+		return;
 
 	if ((!disable_copy_compl_intr) &&
 	    (ce_state->send_cb || ce_state->recv_cb))
@@ -843,9 +865,12 @@ static void ath10k_ce_per_engine_handler_adjust(struct ath10k_ce_pipe *ce_state,
 void ath10k_ce_disable_interrupts(struct ath10k *ar)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	int ce_id;
+	int ce_id, ret;
+
+	ret = ath10k_pci_wake(ar);
+	if (ret)
+		return;
 
-	ath10k_pci_wake(ar);
 	for (ce_id = 0; ce_id < ar_pci->ce_count; ce_id++) {
 		struct ath10k_ce_pipe *ce_state = &ar_pci->ce_states[ce_id];
 		u32 ctrl_addr = ce_state->ctrl_addr;
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index e0cf75f5a8a1..29ccd0479825 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -537,7 +537,7 @@ static void ath10k_pci_wait(struct ath10k *ar)
 		ath10k_warn("Unable to wakeup target\n");
 }
 
-void ath10k_do_pci_wake(struct ath10k *ar)
+int ath10k_do_pci_wake(struct ath10k *ar)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 	void __iomem *pci_addr = ar_pci->mem;
@@ -553,18 +553,19 @@ void ath10k_do_pci_wake(struct ath10k *ar)
 	atomic_inc(&ar_pci->keep_awake_count);
 
 	if (ar_pci->verified_awake)
-		return;
+		return 0;
 
 	for (;;) {
 		if (ath10k_pci_target_is_awake(ar)) {
 			ar_pci->verified_awake = true;
-			break;
+			return 0;
 		}
 
 		if (tot_delay > PCIE_WAKE_TIMEOUT) {
-			ath10k_warn("target takes too long to wake up (awake count %d)\n",
+			ath10k_warn("target took longer %d us to wake up (awake count %d)\n",
+				    PCIE_WAKE_TIMEOUT,
 				    atomic_read(&ar_pci->keep_awake_count));
-			break;
+			return -ETIMEDOUT;
 		}
 
 		udelay(curr_delay);
diff --git a/drivers/net/wireless/ath/ath10k/pci.h b/drivers/net/wireless/ath/ath10k/pci.h
index 395f61021829..7c49f6f96f70 100644
--- a/drivers/net/wireless/ath/ath10k/pci.h
+++ b/drivers/net/wireless/ath/ath10k/pci.h
@@ -321,15 +321,17 @@ static inline u32 ath10k_pci_read32(struct ath10k *ar, u32 offset)
 	return ioread32(ar_pci->mem + offset);
 }
 
-void ath10k_do_pci_wake(struct ath10k *ar);
+int ath10k_do_pci_wake(struct ath10k *ar);
 void ath10k_do_pci_sleep(struct ath10k *ar);
 
-static inline void ath10k_pci_wake(struct ath10k *ar)
+static inline int ath10k_pci_wake(struct ath10k *ar)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 
 	if (test_bit(ATH10K_PCI_FEATURE_SOC_POWER_SAVE, ar_pci->features))
-		ath10k_do_pci_wake(ar);
+		return ath10k_do_pci_wake(ar);
+
+	return 0;
 }
 
 static inline void ath10k_pci_sleep(struct ath10k *ar)
-- 
cgit 


From e9780367b0f43536b460fd83931f7c111ec99470 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Sun, 1 Sep 2013 10:02:15 +0300
Subject: ath10k: simplify ath10k_ce_init() wake up handling

ath10k_ce_init() and the functions it calls wakeup
the chip multiple times. Simplify that to call
ath10k_pci_wake() only once. This also makes it
easier to add error handling when wakeup fails.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/ce.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index 19f23a22f854..afe5df404ce6 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -946,7 +946,6 @@ static int ath10k_ce_init_src_ring(struct ath10k *ar,
 	src_ring->nentries = nentries;
 	src_ring->nentries_mask = nentries - 1;
 
-	ath10k_pci_wake(ar);
 	src_ring->sw_index = ath10k_ce_src_ring_read_index_get(ar, ctrl_addr);
 	src_ring->sw_index &= src_ring->nentries_mask;
 	src_ring->hw_index = src_ring->sw_index;
@@ -954,7 +953,6 @@ static int ath10k_ce_init_src_ring(struct ath10k *ar,
 	src_ring->write_index =
 		ath10k_ce_src_ring_write_index_get(ar, ctrl_addr);
 	src_ring->write_index &= src_ring->nentries_mask;
-	ath10k_pci_sleep(ar);
 
 	src_ring->per_transfer_context = (void **)ptr;
 
@@ -1004,7 +1002,6 @@ static int ath10k_ce_init_src_ring(struct ath10k *ar,
 			src_ring->shadow_base_unaligned,
 			CE_DESC_RING_ALIGN);
 
-	ath10k_pci_wake(ar);
 	ath10k_ce_src_ring_base_addr_set(ar, ctrl_addr,
 					 src_ring->base_addr_ce_space);
 	ath10k_ce_src_ring_size_set(ar, ctrl_addr, nentries);
@@ -1012,7 +1009,6 @@ static int ath10k_ce_init_src_ring(struct ath10k *ar,
 	ath10k_ce_src_ring_byte_swap_set(ar, ctrl_addr, 0);
 	ath10k_ce_src_ring_lowmark_set(ar, ctrl_addr, 0);
 	ath10k_ce_src_ring_highmark_set(ar, ctrl_addr, nentries);
-	ath10k_pci_sleep(ar);
 
 	return 0;
 }
@@ -1049,13 +1045,11 @@ static int ath10k_ce_init_dest_ring(struct ath10k *ar,
 	dest_ring->nentries = nentries;
 	dest_ring->nentries_mask = nentries - 1;
 
-	ath10k_pci_wake(ar);
 	dest_ring->sw_index = ath10k_ce_dest_ring_read_index_get(ar, ctrl_addr);
 	dest_ring->sw_index &= dest_ring->nentries_mask;
 	dest_ring->write_index =
 		ath10k_ce_dest_ring_write_index_get(ar, ctrl_addr);
 	dest_ring->write_index &= dest_ring->nentries_mask;
-	ath10k_pci_sleep(ar);
 
 	dest_ring->per_transfer_context = (void **)ptr;
 
@@ -1090,14 +1084,12 @@ static int ath10k_ce_init_dest_ring(struct ath10k *ar,
 			dest_ring->base_addr_ce_space_unaligned,
 			CE_DESC_RING_ALIGN);
 
-	ath10k_pci_wake(ar);
 	ath10k_ce_dest_ring_base_addr_set(ar, ctrl_addr,
 					  dest_ring->base_addr_ce_space);
 	ath10k_ce_dest_ring_size_set(ar, ctrl_addr, nentries);
 	ath10k_ce_dest_ring_byte_swap_set(ar, ctrl_addr, 0);
 	ath10k_ce_dest_ring_lowmark_set(ar, ctrl_addr, 0);
 	ath10k_ce_dest_ring_highmark_set(ar, ctrl_addr, nentries);
-	ath10k_pci_sleep(ar);
 
 	return 0;
 }
@@ -1138,6 +1130,10 @@ struct ath10k_ce_pipe *ath10k_ce_init(struct ath10k *ar,
 	u32 ctrl_addr = ath10k_ce_base_address(ce_id);
 	int ret;
 
+	ret = ath10k_pci_wake(ar);
+	if (ret)
+		return NULL;
+
 	ce_state = ath10k_ce_init_state(ar, ce_id, attr);
 	if (!ce_state) {
 		ath10k_err("Failed to initialize CE state for ID: %d\n", ce_id);
@@ -1165,8 +1161,8 @@ struct ath10k_ce_pipe *ath10k_ce_init(struct ath10k *ar,
 	}
 
 	/* Enable CE error interrupts */
-	ath10k_pci_wake(ar);
 	ath10k_ce_error_intr_enable(ar, ctrl_addr);
+
 	ath10k_pci_sleep(ar);
 
 	return ce_state;
-- 
cgit 


From e01ae68c5d8889588db6b7fcf3e3d7821a3365fb Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Sun, 1 Sep 2013 11:22:14 +0300
Subject: ath10k: check chip id from the soc register during probe

ath10k doesn't support qca988x hw1.0 boards anymore. Unfortunately
the PCI id is the same in hw1.0 and hw2.0 so ath10k tries to use
hw1.0 boards anyway. But without hw1.0 workarounds in place
ath10k just crashes horribly.

To avoid using hw1.0 boards at all add a chip id detection
and fail the probe if hw1.0 is detected:

[ 5265.786408] ath10k: ERROR: qca988x hw1.0 is not supported
[ 5265.786497] ath10k: Unsupported chip id 0x043200ff
[ 5265.786574] ath10k: could not register driver core (-95)
[ 5265.793191] ath10k_pci: probe of 0000:02:00.0 failed with error -95

Also add a warning if there's an unknown chip id but continue
the boot process normally anyway.

Reported-by: Zaki Bakar <zaki.bm@gmail.com>
Tested-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.c | 35 +++++++++++++++++++++++++++++++++-
 drivers/net/wireless/ath/ath10k/core.h |  3 ++-
 drivers/net/wireless/ath/ath10k/hw.h   |  8 ++++++++
 drivers/net/wireless/ath/ath10k/pci.c  | 15 +++++++++++++--
 4 files changed, 57 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 04c132e9f219..2dd39a82ae99 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -706,10 +706,43 @@ static int ath10k_core_probe_fw(struct ath10k *ar)
 	return 0;
 }
 
-int ath10k_core_register(struct ath10k *ar)
+static int ath10k_core_check_chip_id(struct ath10k *ar)
+{
+	u32 hw_revision = MS(ar->chip_id, SOC_CHIP_ID_REV);
+
+	/* Check that we are not using hw1.0 (some of them have same pci id
+	 * as hw2.0) before doing anything else as ath10k crashes horribly
+	 * due to missing hw1.0 workarounds. */
+	switch (hw_revision) {
+	case QCA988X_HW_1_0_CHIP_ID_REV:
+		ath10k_err("ERROR: qca988x hw1.0 is not supported\n");
+		return -EOPNOTSUPP;
+
+	case QCA988X_HW_2_0_CHIP_ID_REV:
+		/* known hardware revision, continue normally */
+		return 0;
+
+	default:
+		ath10k_warn("Warning: hardware revision unknown (0x%x), expect problems\n",
+			    ar->chip_id);
+		return 0;
+	}
+
+	return 0;
+}
+
+int ath10k_core_register(struct ath10k *ar, u32 chip_id)
 {
 	int status;
 
+	ar->chip_id = chip_id;
+
+	status = ath10k_core_check_chip_id(ar);
+	if (status) {
+		ath10k_err("Unsupported chip id 0x%08x\n", ar->chip_id);
+		return status;
+	}
+
 	status = ath10k_core_probe_fw(ar);
 	if (status) {
 		ath10k_err("could not probe fw (%d)\n", status);
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index ab05c4c1b0fa..174c4b404223 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -284,6 +284,7 @@ struct ath10k {
 	struct device *dev;
 	u8 mac_addr[ETH_ALEN];
 
+	u32 chip_id;
 	u32 target_version;
 	u8 fw_version_major;
 	u32 fw_version_minor;
@@ -403,7 +404,7 @@ void ath10k_core_destroy(struct ath10k *ar);
 
 int ath10k_core_start(struct ath10k *ar);
 void ath10k_core_stop(struct ath10k *ar);
-int ath10k_core_register(struct ath10k *ar);
+int ath10k_core_register(struct ath10k *ar, u32 chip_id);
 void ath10k_core_unregister(struct ath10k *ar);
 
 #endif /* _CORE_H_ */
diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
index 5708888486eb..643f0c9f052b 100644
--- a/drivers/net/wireless/ath/ath10k/hw.h
+++ b/drivers/net/wireless/ath/ath10k/hw.h
@@ -26,8 +26,12 @@
 #define SUPPORTED_FW_RELEASE	0
 #define SUPPORTED_FW_BUILD	636
 
+/* QCA988X 1.0 definitions (unsupported) */
+#define QCA988X_HW_1_0_CHIP_ID_REV	0x0
+
 /* QCA988X 2.0 definitions */
 #define QCA988X_HW_2_0_VERSION		0x4100016c
+#define QCA988X_HW_2_0_CHIP_ID_REV	0x2
 #define QCA988X_HW_2_0_FW_DIR		"ath10k/QCA988X/hw2.0"
 #define QCA988X_HW_2_0_FW_FILE		"firmware.bin"
 #define QCA988X_HW_2_0_OTP_FILE		"otp.bin"
@@ -164,6 +168,10 @@ enum ath10k_mcast2ucast_mode {
 #define SOC_LPO_CAL_ENABLE_LSB			20
 #define SOC_LPO_CAL_ENABLE_MASK			0x00100000
 
+#define SOC_CHIP_ID_ADDRESS			0x000000ec
+#define SOC_CHIP_ID_REV_LSB			8
+#define SOC_CHIP_ID_REV_MASK			0x00000f00
+
 #define WLAN_RESET_CONTROL_COLD_RST_MASK	0x00000008
 #define WLAN_RESET_CONTROL_WARM_RST_MASK	0x00000004
 #define WLAN_SYSTEM_SLEEP_DISABLE_LSB		0
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 29ccd0479825..622901d5237f 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -2390,7 +2390,7 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
 	int ret = 0;
 	struct ath10k *ar;
 	struct ath10k_pci *ar_pci;
-	u32 lcr_val;
+	u32 lcr_val, chip_id;
 
 	ath10k_dbg(ATH10K_DBG_PCI, "%s\n", __func__);
 
@@ -2492,7 +2492,18 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
 
 	spin_lock_init(&ar_pci->ce_lock);
 
-	ret = ath10k_core_register(ar);
+	ret = ath10k_do_pci_wake(ar);
+	if (ret) {
+		ath10k_err("Failed to get chip id: %d\n", ret);
+		return ret;
+	}
+
+	chip_id = ath10k_pci_read32(ar,
+				    RTC_SOC_BASE_ADDRESS + SOC_CHIP_ID_ADDRESS);
+
+	ath10k_do_pci_sleep(ar);
+
+	ret = ath10k_core_register(ar, chip_id);
 	if (ret) {
 		ath10k_err("could not register driver core (%d)\n", ret);
 		goto err_iomap;
-- 
cgit 


From 763b8cd31493f452094fd0eaeedb8cad37c756a2 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Sun, 1 Sep 2013 11:22:21 +0300
Subject: ath10k: add chip_id file to debugfs

So that's it's possible to query chip id from ath10k anytime.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/debug.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index fcb40ccdb33b..09f535a1c767 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -498,6 +498,25 @@ static const struct file_operations fops_simulate_fw_crash = {
 	.llseek = default_llseek,
 };
 
+static ssize_t ath10k_read_chip_id(struct file *file, char __user *user_buf,
+				   size_t count, loff_t *ppos)
+{
+	struct ath10k *ar = file->private_data;
+	unsigned int len;
+	char buf[50];
+
+	len = scnprintf(buf, sizeof(buf), "0x%08x\n", ar->chip_id);
+
+	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static const struct file_operations fops_chip_id = {
+	.read = ath10k_read_chip_id,
+	.open = simple_open,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,
+};
+
 int ath10k_debug_create(struct ath10k *ar)
 {
 	ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
@@ -517,6 +536,9 @@ int ath10k_debug_create(struct ath10k *ar)
 	debugfs_create_file("simulate_fw_crash", S_IRUSR, ar->debug.debugfs_phy,
 			    ar, &fops_simulate_fw_crash);
 
+	debugfs_create_file("chip_id", S_IRUSR, ar->debug.debugfs_phy,
+			    ar, &fops_chip_id);
+
 	return 0;
 }
 #endif /* CONFIG_ATH10K_DEBUGFS */
-- 
cgit 


From 7752572f18f98ee796e173334b088a1d621d2da4 Mon Sep 17 00:00:00 2001
From: Yanchuan Nian <ycnian@gmail.com>
Date: Wed, 4 Sep 2013 09:25:24 +0800
Subject: x86/irq: Correct comment about i8259 initialization

0x30-0x3f have been used for ISA interrupts on i386 as well
since 5 years ago, but old comments about i8259 initialization
were still referring to the old i386 usage of this port range.

Signed-off-by: Yanchuan Nian <ycnian@gmail.com>
Cc: yinghai@kernel.org
Cc: pavel@suse.cz
Link: http://lkml.kernel.org/r/1378257924-29446-1-git-send-email-ycnian@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/i8259.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c
index 9a5c460404dc..2e977b5d61dd 100644
--- a/arch/x86/kernel/i8259.c
+++ b/arch/x86/kernel/i8259.c
@@ -312,8 +312,7 @@ static void init_8259A(int auto_eoi)
 	 */
 	outb_pic(0x11, PIC_MASTER_CMD);	/* ICW1: select 8259A-1 init */
 
-	/* ICW2: 8259A-1 IR0-7 mapped to 0x30-0x37 on x86-64,
-	   to 0x20-0x27 on i386 */
+	/* ICW2: 8259A-1 IR0-7 mapped to 0x30-0x37 */
 	outb_pic(IRQ0_VECTOR, PIC_MASTER_IMR);
 
 	/* 8259A-1 (the master) has a slave on IR2 */
-- 
cgit 


From c0866286f10964e61ec10c8c605ef86e65fbbd38 Mon Sep 17 00:00:00 2001
From: Neil Horman <nhorman@tuxdriver.com>
Date: Sat, 3 Aug 2013 10:45:53 +0000
Subject: fcoe: ensure that skb placed on the fip_recv_list are unshared

Recently had this Oops reported to me on the 3.10 kernel:

[  807.554955] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
[  807.562799] IP: [<ffffffff814e6fc7>] skb_dequeue+0x47/0x70
[  807.568296] PGD 20c889067 PUD 20c8b8067 PMD 0
[  807.572769] Oops: 0002 [#1] SMP
[  807.655597] Hardware name: Dell Inc. PowerEdge R415/0DDT2D, BIOS 1.8.6 12/06/2011
[  807.663079] Workqueue: events fcoe_ctlr_recv_work [libfcoe]
[  807.668656] task: ffff88020b42a160 ti: ffff88020ae6c000 task.ti: ffff88020ae6c000
[  807.676126] RIP: 0010:[<ffffffff814e6fc7>]  [<ffffffff814e6fc7>] skb_dequeue+0x47/0x70
[  807.684046] RSP: 0000:ffff88020ae6dd70  EFLAGS: 00010097
[  807.689349] RAX: 0000000000000246 RBX: ffff8801d04d6700 RCX: 0000000000000000
[  807.696474] RDX: 0000000000000000 RSI: 0000000000000246 RDI: ffff88020df26434
[  807.703598] RBP: ffff88020ae6dd88 R08: 00000000000173e0 R09: ffff880216e173e0
[  807.710723] R10: ffffffff814e5897 R11: ffffea0007413580 R12: ffff88020df26420
[  807.717847] R13: ffff88020df26434 R14: 0000000000000004 R15: ffff8801d04c42ce
[  807.724972] FS:  00007fdaab6048c0(0000) GS:ffff880216e00000(0000) knlGS:0000000000000000
[  807.733049] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[  807.738785] CR2: 0000000000000008 CR3: 000000020cbc9000 CR4: 00000000000006f0
[  807.745910] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  807.753033] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
[  807.760156] Stack:
[  807.762162]  ffff8801d04d6700 0000000000000001 ffff88020df26400 ffff88020ae6de20
[  807.769586]  ffffffffa0444409 ffff88020b046a00 ffff88020ae6dde8 ffffffff810105be
[  807.777008]  ffff88020b42a868 0000000000000000 ffff88020df264a8 ffff88020df26348
[  807.784431] Call Trace:
[  807.786885]  [<ffffffffa0444409>] fcoe_ctlr_recv_work+0x59/0x9a0 [libfcoe]
[  807.793755]  [<ffffffff810105be>] ? __switch_to+0x13e/0x4a0
[  807.799324]  [<ffffffff8107d0e6>] process_one_work+0x176/0x420
[  807.805151]  [<ffffffff8107dd0b>] worker_thread+0x11b/0x3a0
[  807.810717]  [<ffffffff8107dbf0>] ? rescuer_thread+0x350/0x350
[  807.816545]  [<ffffffff810842b0>] kthread+0xc0/0xd0
[  807.821416]  [<ffffffff810841f0>] ? insert_kthread_work+0x40/0x40
[  807.827503]  [<ffffffff8160ce2c>] ret_from_fork+0x7c/0xb0
[  807.832897]  [<ffffffff810841f0>] ? insert_kthread_work+0x40/0x40
[  807.858500] RIP  [<ffffffff814e6fc7>] skb_dequeue+0x47/0x70
[  807.864076]  RSP <ffff88020ae6dd70>
[  807.867558] CR2: 0000000000000008

Looks like the root cause is the fact that the packet recieve function
fcoe_ctlr_recv enqueues the skb to a sk_buff_head_list prior to ensuring that
the skb is unshared.  This can happen when multiple packet listeners recieve an
skb, as the deliver_skb function just increments skb->users for each handler.
As a result, having multiple users of a single skb results in multiple
manipulators of its methods, implying list corruption, and the oops recorded
above.

The fix is pretty easy, just make sure that we clone the skb if its got multiple
users with the skb_share_check function, like other protocols do.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---
 drivers/scsi/fcoe/fcoe_ctlr.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/scsi/fcoe/fcoe_ctlr.c b/drivers/scsi/fcoe/fcoe_ctlr.c
index 203415e02518..35b1fb73bd6b 100644
--- a/drivers/scsi/fcoe/fcoe_ctlr.c
+++ b/drivers/scsi/fcoe/fcoe_ctlr.c
@@ -1453,6 +1453,9 @@ err:
  */
 void fcoe_ctlr_recv(struct fcoe_ctlr *fip, struct sk_buff *skb)
 {
+	skb = skb_share_check(skb, GFP_ATOMIC);
+	if (!skb)
+		return;
 	skb_queue_tail(&fip->fip_recv_list, skb);
 	schedule_work(&fip->recv_work);
 }
-- 
cgit 


From 8b6124345207e4c2141bed78f1bf7c4f526a6d19 Mon Sep 17 00:00:00 2001
From: Neil Horman <nhorman@tuxdriver.com>
Date: Sat, 3 Aug 2013 10:45:54 +0000
Subject: fcoe: make sure fcoe frames are unshared prior to manipulating them

Based on my last patch I noticed that fcoe_rcv has a simmilar problem, in that
it manipulates the passed in skb without checking to see if it has other users.
Making manipulations to a shared skb can result in various corruptions.

Easy fix, just make sure the skb is unshared prior to doing anything with it.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---
 drivers/scsi/fcoe/fcoe.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index 07453bbf05e7..f9b0302f9ba2 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -1452,6 +1452,12 @@ static int fcoe_rcv(struct sk_buff *skb, struct net_device *netdev,
 			skb_tail_pointer(skb), skb_end_pointer(skb),
 			skb->csum, skb->dev ? skb->dev->name : "<NULL>");
 
+
+	skb = skb_share_check(skb, GFP_ATOMIC);
+
+	if (skb == NULL)
+		return NET_RX_DROP;
+
 	eh = eth_hdr(skb);
 
 	if (is_fip_mode(ctlr) &&
-- 
cgit 


From 34bac2ef5981666261fcf6932f4cd718b820323f Mon Sep 17 00:00:00 2001
From: Neil Horman <nhorman@tuxdriver.com>
Date: Sat, 3 Aug 2013 10:45:55 +0000
Subject: fcoe: cleanup return codes from fcoe_rcv

the return codes from fcoe_rcv should be NET_RX_*, not 0 or -1.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---
 drivers/scsi/fcoe/fcoe.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index f9b0302f9ba2..134ca3b471bf 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -1546,13 +1546,13 @@ static int fcoe_rcv(struct sk_buff *skb, struct net_device *netdev,
 		wake_up_process(fps->thread);
 	spin_unlock(&fps->fcoe_rx_list.lock);
 
-	return 0;
+	return NET_RX_SUCCESS;
 err:
 	per_cpu_ptr(lport->stats, get_cpu())->ErrorFrames++;
 	put_cpu();
 err2:
 	kfree_skb(skb);
-	return -1;
+	return NET_RX_DROP;
 }
 
 /**
-- 
cgit 


From c1d454246c1339388ed0788f34f88ee12ad58ef3 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 14 Aug 2013 15:31:52 +0000
Subject: libfc: Source code comment spelling fixes

Change 'initiaive' into 'initiative', 'remainig' into 'remaining'
and change 'exected' into 'expected'.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---
 drivers/scsi/libfc/fc_exch.c  | 5 +----
 drivers/scsi/libfc/fc_lport.c | 2 +-
 drivers/scsi/libfc/fc_rport.c | 6 +++---
 include/scsi/fc/fc_fc2.h      | 2 +-
 4 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index 587992952b3c..b233a2dea122 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -303,10 +303,7 @@ static void fc_exch_setup_hdr(struct fc_exch *ep, struct fc_frame *fp,
 		fr_eof(fp) = FC_EOF_N;
 	}
 
-	/*
-	 * Initialize remainig fh fields
-	 * from fc_fill_fc_hdr
-	 */
+	/* Initialize remaining fh fields from fc_fill_fc_hdr */
 	fh->fh_ox_id = htons(ep->oxid);
 	fh->fh_rx_id = htons(ep->rxid);
 	fh->fh_seq_id = ep->seq.id;
diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c
index f04d15c67df3..a32f3141f3f9 100644
--- a/drivers/scsi/libfc/fc_lport.c
+++ b/drivers/scsi/libfc/fc_lport.c
@@ -516,7 +516,7 @@ static void fc_lport_recv_rnid_req(struct fc_lport *lport,
  * @lport: The local port receiving the LOGO
  * @fp:	   The LOGO request frame
  *
- * Locking Note: The lport lock is exected to be held before calling
+ * Locking Note: The lport lock is expected to be held before calling
  * this function.
  */
 static void fc_lport_recv_logo_req(struct fc_lport *lport, struct fc_frame *fp)
diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c
index c710d908fda6..589ff9aedd31 100644
--- a/drivers/scsi/libfc/fc_rport.c
+++ b/drivers/scsi/libfc/fc_rport.c
@@ -1705,7 +1705,7 @@ reject:
  * @rdata: The remote port that sent the PRLI request
  * @rx_fp: The PRLI request frame
  *
- * Locking Note: The rport lock is exected to be held before calling
+ * Locking Note: The rport lock is expected to be held before calling
  * this function.
  */
 static void fc_rport_recv_prli_req(struct fc_rport_priv *rdata,
@@ -1824,7 +1824,7 @@ drop:
  * @rdata: The remote port that sent the PRLO request
  * @rx_fp: The PRLO request frame
  *
- * Locking Note: The rport lock is exected to be held before calling
+ * Locking Note: The rport lock is expected to be held before calling
  * this function.
  */
 static void fc_rport_recv_prlo_req(struct fc_rport_priv *rdata,
@@ -1895,7 +1895,7 @@ drop:
  * @lport: The local port that received the LOGO request
  * @fp:	   The LOGO request frame
  *
- * Locking Note: The rport lock is exected to be held before calling
+ * Locking Note: The rport lock is expected to be held before calling
  * this function.
  */
 static void fc_rport_recv_logo_req(struct fc_lport *lport, struct fc_frame *fp)
diff --git a/include/scsi/fc/fc_fc2.h b/include/scsi/fc/fc_fc2.h
index f87777d0d5bd..0b2671431305 100644
--- a/include/scsi/fc/fc_fc2.h
+++ b/include/scsi/fc/fc_fc2.h
@@ -104,7 +104,7 @@ struct fc_esb {
  * esb_e_stat - flags from FC-FS-2 T11/1619-D Rev 0.90.
  */
 #define ESB_ST_RESP         (1 << 31)   /* responder to exchange */
-#define ESB_ST_SEQ_INIT     (1 << 30)   /* port holds sequence initiaive */
+#define ESB_ST_SEQ_INIT     (1 << 30)   /* port holds sequence initiative */
 #define ESB_ST_COMPLETE     (1 << 29)   /* exchange is complete */
 #define ESB_ST_ABNORMAL     (1 << 28)   /* abnormal ending condition */
 #define ESB_ST_REC_QUAL     (1 << 26)   /* recovery qualifier active */
-- 
cgit 


From b20d9bfda77306c2f66a90eb94ef9db58fb1e682 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 14 Aug 2013 15:32:51 +0000
Subject: libfc: Debug code fixes

The second argument of fc_lport_error() may be a valid frame pointer.
Hence only print it as an error code if it really is an error code.

Debug statements must end in a newline. Add one where it is missing.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---
 drivers/scsi/libfc/fc_exch.c  | 8 ++++----
 drivers/scsi/libfc/fc_lport.c | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index b233a2dea122..cb2b900c011d 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -1659,7 +1659,7 @@ static void fc_exch_recv_bls(struct fc_exch_mgr *mp, struct fc_frame *fp)
 			break;
 		default:
 			if (ep)
-				FC_EXCH_DBG(ep, "BLS rctl %x - %s received",
+				FC_EXCH_DBG(ep, "BLS rctl %x - %s received\n",
 					    fh->fh_r_ctl,
 					    fc_exch_rctl_name(fh->fh_r_ctl));
 			break;
@@ -1953,13 +1953,13 @@ static void fc_exch_rrq_resp(struct fc_seq *sp, struct fc_frame *fp, void *arg)
 
 	switch (op) {
 	case ELS_LS_RJT:
-		FC_EXCH_DBG(aborted_ep, "LS_RJT for RRQ");
+		FC_EXCH_DBG(aborted_ep, "LS_RJT for RRQ\n");
 		/* fall through */
 	case ELS_LS_ACC:
 		goto cleanup;
 	default:
-		FC_EXCH_DBG(aborted_ep, "unexpected response op %x "
-			    "for RRQ", op);
+		FC_EXCH_DBG(aborted_ep, "unexpected response op %x for RRQ\n",
+			    op);
 		return;
 	}
 
diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c
index a32f3141f3f9..e01a29863c38 100644
--- a/drivers/scsi/libfc/fc_lport.c
+++ b/drivers/scsi/libfc/fc_lport.c
@@ -1088,7 +1088,7 @@ static void fc_lport_error(struct fc_lport *lport, struct fc_frame *fp)
 {
 	unsigned long delay = 0;
 	FC_LPORT_DBG(lport, "Error %ld in state %s, retries %d\n",
-		     PTR_ERR(fp), fc_lport_state(lport),
+		     IS_ERR(fp) ? -PTR_ERR(fp) : 0, fc_lport_state(lport),
 		     lport->retry_count);
 
 	if (PTR_ERR(fp) == -FC_EX_CLOSED)
-- 
cgit 


From a84ea8c7e839a73dab4bfc755f7f52e947690dab Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 14 Aug 2013 15:33:35 +0000
Subject: libfc: Micro-optimize fc_setup_exch_mgr()

Convert a loop into an ilog2() call. Although this code is not performance
sensitive this conversion makes this code easier to read.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---
 drivers/scsi/libfc/fc_exch.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index cb2b900c011d..d0be52ab62c8 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -27,6 +27,7 @@
 #include <linux/slab.h>
 #include <linux/err.h>
 #include <linux/export.h>
+#include <linux/log2.h>
 
 #include <scsi/fc/fc_fc2.h>
 
@@ -2530,13 +2531,8 @@ int fc_setup_exch_mgr(void)
 	 * cpu on which exchange originated by simple bitwise
 	 * AND operation between fc_cpu_mask and exchange id.
 	 */
-	fc_cpu_mask = 1;
-	fc_cpu_order = 0;
-	while (fc_cpu_mask < nr_cpu_ids) {
-		fc_cpu_mask <<= 1;
-		fc_cpu_order++;
-	}
-	fc_cpu_mask--;
+	fc_cpu_order = ilog2(roundup_pow_of_two(nr_cpu_ids));
+	fc_cpu_mask = (1 << fc_cpu_order) - 1;
 
 	fc_exch_workqueue = create_singlethread_workqueue("fc_exch_workqueue");
 	if (!fc_exch_workqueue)
-- 
cgit 


From 8d08023687e2515f2a48235aed80b6982025cd09 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Sat, 17 Aug 2013 20:20:07 +0000
Subject: libfc: Clarify fc_exch_find()

The condition ep != NULL && ep->xid != xid can never be met. Make
this explicit.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---
 drivers/scsi/libfc/fc_exch.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index d0be52ab62c8..f6bb0fbf422f 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -836,8 +836,10 @@ static struct fc_exch *fc_exch_find(struct fc_exch_mgr *mp, u16 xid)
 		pool = per_cpu_ptr(mp->pool, xid & fc_cpu_mask);
 		spin_lock_bh(&pool->lock);
 		ep = fc_exch_ptr_get(pool, (xid - mp->min_xid) >> fc_cpu_order);
-		if (ep && ep->xid == xid)
+		if (ep) {
+			WARN_ON(ep->xid != xid);
 			fc_exch_hold(ep);
+		}
 		spin_unlock_bh(&pool->lock);
 	}
 	return ep;
-- 
cgit 


From b86788658be425a5454246a954721d9122d2b3d6 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 14 Aug 2013 15:35:29 +0000
Subject: libfc: Fix a race in fc_exch_timer_set_locked()

It is allowed to pass a zero timeout value to fc_seq_exch_abort().
Avoid that this can cause the timeout function to drop the exchange
reference before it has been increased by fc_exch_timer_set_locked().
This patch fixes a crash when running FCoE target code with poisoning
enabled in the memory allocator.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---
 drivers/scsi/libfc/fc_exch.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index f6bb0fbf422f..7000203845bd 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -360,9 +360,10 @@ static inline void fc_exch_timer_set_locked(struct fc_exch *ep,
 
 	FC_EXCH_DBG(ep, "Exchange timer armed : %d msecs\n", timer_msec);
 
-	if (queue_delayed_work(fc_exch_workqueue, &ep->timeout_work,
-			       msecs_to_jiffies(timer_msec)))
-		fc_exch_hold(ep);		/* hold for timer */
+	fc_exch_hold(ep);		/* hold for timer */
+	if (!queue_delayed_work(fc_exch_workqueue, &ep->timeout_work,
+				msecs_to_jiffies(timer_msec)))
+		fc_exch_release(ep);
 }
 
 /**
-- 
cgit 


From 5d73bea2d3a004698d16ba5face89f0bef383e76 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 14 Aug 2013 15:37:08 +0000
Subject: libfc: Protect ep->esb_stat changes via ex_lock

This patch avoids that the WARN_ON(!(ep->esb_stat & ESB_ST_SEQ_INIT))
statement in fc_seq_send_locked() gets triggered sporadically when
running FCoE target code due to concurrent ep->esb_stat modifications.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---
 drivers/scsi/libfc/fc_exch.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index 7000203845bd..bc0aba4fabb4 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -988,6 +988,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
 		}
 	}
 
+	spin_lock_bh(&ep->ex_lock);
 	/*
 	 * At this point, we have the exchange held.
 	 * Find or create the sequence.
@@ -1015,11 +1016,11 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
 				 * sending RSP, hence write request on other
 				 * end never finishes.
 				 */
-				spin_lock_bh(&ep->ex_lock);
 				sp->ssb_stat |= SSB_ST_RESP;
 				sp->id = fh->fh_seq_id;
-				spin_unlock_bh(&ep->ex_lock);
 			} else {
+				spin_unlock_bh(&ep->ex_lock);
+
 				/* sequence/exch should exist */
 				reject = FC_RJT_SEQ_ID;
 				goto rel;
@@ -1030,6 +1031,7 @@ static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,
 
 	if (f_ctl & FC_FC_SEQ_INIT)
 		ep->esb_stat |= ESB_ST_SEQ_INIT;
+	spin_unlock_bh(&ep->ex_lock);
 
 	fr_seq(fp) = sp;
 out:
@@ -1479,8 +1481,11 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
 
 	f_ctl = ntoh24(fh->fh_f_ctl);
 	fr_seq(fp) = sp;
+
+	spin_lock_bh(&ep->ex_lock);
 	if (f_ctl & FC_FC_SEQ_INIT)
 		ep->esb_stat |= ESB_ST_SEQ_INIT;
+	spin_unlock_bh(&ep->ex_lock);
 
 	if (fc_sof_needs_ack(sof))
 		fc_seq_send_ack(sp, fp);
-- 
cgit 


From cae7b6dd6c569f18f5c8e3f33cac60fbaeb58140 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 14 Aug 2013 15:37:52 +0000
Subject: libfc: Avoid that sending after an abort triggers a kernel warning

Calling fc_seq_send() after an ABTS message has been received triggers
a kernel warning (WARN_ON(!(ep->esb_stat & ESB_ST_SEQ_INIT))). Avoid
this by returning -ENXIO to the caller if fc_seq_send() is invoked after
an ABTS message has been received.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---
 drivers/scsi/libfc/fc_exch.c | 59 +++++++++++++++++++++++++++-----------------
 1 file changed, 37 insertions(+), 22 deletions(-)

diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index bc0aba4fabb4..2a7fd5afecca 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -463,15 +463,21 @@ static void fc_exch_delete(struct fc_exch *ep)
 }
 
 static int fc_seq_send_locked(struct fc_lport *lport, struct fc_seq *sp,
-		       struct fc_frame *fp)
+			      struct fc_frame *fp)
 {
 	struct fc_exch *ep;
 	struct fc_frame_header *fh = fc_frame_header_get(fp);
-	int error;
+	int error = -ENXIO;
 	u32 f_ctl;
 	u8 fh_type = fh->fh_type;
 
 	ep = fc_seq_exch(sp);
+
+	if (ep->esb_stat & (ESB_ST_COMPLETE | ESB_ST_ABNORMAL)) {
+		fc_frame_free(fp);
+		goto out;
+	}
+
 	WARN_ON(!(ep->esb_stat & ESB_ST_SEQ_INIT));
 
 	f_ctl = ntoh24(fh->fh_f_ctl);
@@ -514,6 +520,9 @@ out:
  * @lport: The local port that the exchange will be sent on
  * @sp:	   The sequence to be sent
  * @fp:	   The frame to be sent on the exchange
+ *
+ * Note: The frame will be freed either by a direct call to fc_frame_free(fp)
+ * or indirectly by calling libfc_function_template.frame_send().
  */
 static int fc_seq_send(struct fc_lport *lport, struct fc_seq *sp,
 		       struct fc_frame *fp)
@@ -621,27 +630,31 @@ static int fc_exch_abort_locked(struct fc_exch *ep,
 	if (!sp)
 		return -ENOMEM;
 
-	ep->esb_stat |= ESB_ST_SEQ_INIT | ESB_ST_ABNORMAL;
 	if (timer_msec)
 		fc_exch_timer_set_locked(ep, timer_msec);
 
-	/*
-	 * If not logged into the fabric, don't send ABTS but leave
-	 * sequence active until next timeout.
-	 */
-	if (!ep->sid)
-		return 0;
-
-	/*
-	 * Send an abort for the sequence that timed out.
-	 */
-	fp = fc_frame_alloc(ep->lp, 0);
-	if (fp) {
-		fc_fill_fc_hdr(fp, FC_RCTL_BA_ABTS, ep->did, ep->sid,
-			       FC_TYPE_BLS, FC_FC_END_SEQ | FC_FC_SEQ_INIT, 0);
-		error = fc_seq_send_locked(ep->lp, sp, fp);
-	} else
-		error = -ENOBUFS;
+	if (ep->sid) {
+		/*
+		 * Send an abort for the sequence that timed out.
+		 */
+		fp = fc_frame_alloc(ep->lp, 0);
+		if (fp) {
+			ep->esb_stat |= ESB_ST_SEQ_INIT;
+			fc_fill_fc_hdr(fp, FC_RCTL_BA_ABTS, ep->did, ep->sid,
+				       FC_TYPE_BLS, FC_FC_END_SEQ |
+				       FC_FC_SEQ_INIT, 0);
+			error = fc_seq_send_locked(ep->lp, sp, fp);
+		} else {
+			error = -ENOBUFS;
+		}
+	} else {
+		/*
+		 * If not logged into the fabric, don't send ABTS but leave
+		 * sequence active until next timeout.
+		 */
+		error = 0;
+	}
+	ep->esb_stat |= ESB_ST_ABNORMAL;
 	return error;
 }
 
@@ -1299,9 +1312,10 @@ static void fc_exch_recv_abts(struct fc_exch *ep, struct fc_frame *rx_fp)
 		spin_unlock_bh(&ep->ex_lock);
 		goto reject;
 	}
-	if (!(ep->esb_stat & ESB_ST_REC_QUAL))
+	if (!(ep->esb_stat & ESB_ST_REC_QUAL)) {
+		ep->esb_stat |= ESB_ST_REC_QUAL;
 		fc_exch_hold(ep);		/* hold for REC_QUAL */
-	ep->esb_stat |= ESB_ST_ABNORMAL | ESB_ST_REC_QUAL;
+	}
 	fc_exch_timer_set_locked(ep, ep->r_a_tov);
 
 	fp = fc_frame_alloc(ep->lp, sizeof(*ap));
@@ -1322,6 +1336,7 @@ static void fc_exch_recv_abts(struct fc_exch *ep, struct fc_frame *rx_fp)
 	}
 	sp = fc_seq_start_next_locked(sp);
 	fc_seq_send_last(sp, fp, FC_RCTL_BA_ACC, FC_TYPE_BLS);
+	ep->esb_stat |= ESB_ST_ABNORMAL;
 	spin_unlock_bh(&ep->ex_lock);
 	fc_frame_free(rx_fp);
 	return;
-- 
cgit 


From f95b35cfcacadac16dbc5477fd22b0786256a3d1 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 14 Aug 2013 15:38:24 +0000
Subject: libfc: Reduce exchange lock contention in fc_exch_recv_abts()

Reduce the time during which the exchange lock is held by allocating
a frame before obtaining the exchange lock.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---
 drivers/scsi/libfc/fc_exch.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index 2a7fd5afecca..47ebc7b1e143 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -1307,9 +1307,16 @@ static void fc_exch_recv_abts(struct fc_exch *ep, struct fc_frame *rx_fp)
 
 	if (!ep)
 		goto reject;
+
+	fp = fc_frame_alloc(ep->lp, sizeof(*ap));
+	if (!fp)
+		goto free;
+
 	spin_lock_bh(&ep->ex_lock);
 	if (ep->esb_stat & ESB_ST_COMPLETE) {
 		spin_unlock_bh(&ep->ex_lock);
+
+		fc_frame_free(fp);
 		goto reject;
 	}
 	if (!(ep->esb_stat & ESB_ST_REC_QUAL)) {
@@ -1317,12 +1324,6 @@ static void fc_exch_recv_abts(struct fc_exch *ep, struct fc_frame *rx_fp)
 		fc_exch_hold(ep);		/* hold for REC_QUAL */
 	}
 	fc_exch_timer_set_locked(ep, ep->r_a_tov);
-
-	fp = fc_frame_alloc(ep->lp, sizeof(*ap));
-	if (!fp) {
-		spin_unlock_bh(&ep->ex_lock);
-		goto free;
-	}
 	fh = fc_frame_header_get(fp);
 	ap = fc_frame_payload_get(fp, sizeof(*ap));
 	memset(ap, 0, sizeof(*ap));
@@ -1338,13 +1339,14 @@ static void fc_exch_recv_abts(struct fc_exch *ep, struct fc_frame *rx_fp)
 	fc_seq_send_last(sp, fp, FC_RCTL_BA_ACC, FC_TYPE_BLS);
 	ep->esb_stat |= ESB_ST_ABNORMAL;
 	spin_unlock_bh(&ep->ex_lock);
+
+free:
 	fc_frame_free(rx_fp);
 	return;
 
 reject:
 	fc_exch_send_ba_rjt(rx_fp, FC_BA_RJT_UNABLE, FC_BA_RJT_INV_XID);
-free:
-	fc_frame_free(rx_fp);
+	goto free;
 }
 
 /**
-- 
cgit 


From 7030fd626129ec4d616784516a462d317c251d39 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Sat, 17 Aug 2013 20:34:43 +0000
Subject: libfc: Do not invoke the response handler after fc_exch_done()

While the FCoE initiator driver invokes fc_exch_done() from inside
the libfc response handler, FCoE target drivers typically invoke
fc_exch_done() from outside the libfc response handler. The object
fc_exch.arg points at may disappear as soon as fc_exch_done() has
finished. So it's important not to invoke the response handler
function after fc_exch_done() has finished. Modify libfc such that
this guarantee is provided if fc_exch_done() is invoked from
outside a response handler. This patch fixes a sporadic crash in
FCoE target implementations after a command has been aborted.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---
 drivers/scsi/libfc/fc_exch.c | 131 ++++++++++++++++++++++++++++++-------------
 include/scsi/libfc.h         |   9 +++
 2 files changed, 101 insertions(+), 39 deletions(-)

diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index 47ebc7b1e143..1b3a09473452 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -381,6 +381,8 @@ static void fc_exch_timer_set(struct fc_exch *ep, unsigned int timer_msec)
 /**
  * fc_exch_done_locked() - Complete an exchange with the exchange lock held
  * @ep: The exchange that is complete
+ *
+ * Note: May sleep if invoked from outside a response handler.
  */
 static int fc_exch_done_locked(struct fc_exch *ep)
 {
@@ -392,7 +394,6 @@ static int fc_exch_done_locked(struct fc_exch *ep)
 	 * ep, and in that case we only clear the resp and set it as
 	 * complete, so it can be reused by the timer to send the rrq.
 	 */
-	ep->resp = NULL;
 	if (ep->state & FC_EX_DONE)
 		return rc;
 	ep->esb_stat |= ESB_ST_COMPLETE;
@@ -589,6 +590,8 @@ static struct fc_seq *fc_seq_start_next(struct fc_seq *sp)
 
 /*
  * Set the response handler for the exchange associated with a sequence.
+ *
+ * Note: May sleep if invoked from outside a response handler.
  */
 static void fc_seq_set_resp(struct fc_seq *sp,
 			    void (*resp)(struct fc_seq *, struct fc_frame *,
@@ -596,8 +599,18 @@ static void fc_seq_set_resp(struct fc_seq *sp,
 			    void *arg)
 {
 	struct fc_exch *ep = fc_seq_exch(sp);
+	DEFINE_WAIT(wait);
 
 	spin_lock_bh(&ep->ex_lock);
+	while (ep->resp_active && ep->resp_task != current) {
+		prepare_to_wait(&ep->resp_wq, &wait, TASK_UNINTERRUPTIBLE);
+		spin_unlock_bh(&ep->ex_lock);
+
+		schedule();
+
+		spin_lock_bh(&ep->ex_lock);
+	}
+	finish_wait(&ep->resp_wq, &wait);
 	ep->resp = resp;
 	ep->arg = arg;
 	spin_unlock_bh(&ep->ex_lock);
@@ -680,6 +693,61 @@ static int fc_seq_exch_abort(const struct fc_seq *req_sp,
 	return error;
 }
 
+/**
+ * fc_invoke_resp() - invoke ep->resp()
+ *
+ * Notes:
+ * It is assumed that after initialization finished (this means the
+ * first unlock of ex_lock after fc_exch_alloc()) ep->resp and ep->arg are
+ * modified only via fc_seq_set_resp(). This guarantees that none of these
+ * two variables changes if ep->resp_active > 0.
+ *
+ * If an fc_seq_set_resp() call is busy modifying ep->resp and ep->arg when
+ * this function is invoked, the first spin_lock_bh() call in this function
+ * will wait until fc_seq_set_resp() has finished modifying these variables.
+ *
+ * Since fc_exch_done() invokes fc_seq_set_resp() it is guaranteed that that
+ * ep->resp() won't be invoked after fc_exch_done() has returned.
+ *
+ * The response handler itself may invoke fc_exch_done(), which will clear the
+ * ep->resp pointer.
+ *
+ * Return value:
+ * Returns true if and only if ep->resp has been invoked.
+ */
+static bool fc_invoke_resp(struct fc_exch *ep, struct fc_seq *sp,
+			   struct fc_frame *fp)
+{
+	void (*resp)(struct fc_seq *, struct fc_frame *fp, void *arg);
+	void *arg;
+	bool res = false;
+
+	spin_lock_bh(&ep->ex_lock);
+	ep->resp_active++;
+	if (ep->resp_task != current)
+		ep->resp_task = !ep->resp_task ? current : NULL;
+	resp = ep->resp;
+	arg = ep->arg;
+	spin_unlock_bh(&ep->ex_lock);
+
+	if (resp) {
+		resp(sp, fp, arg);
+		res = true;
+	} else if (!IS_ERR(fp)) {
+		fc_frame_free(fp);
+	}
+
+	spin_lock_bh(&ep->ex_lock);
+	if (--ep->resp_active == 0)
+		ep->resp_task = NULL;
+	spin_unlock_bh(&ep->ex_lock);
+
+	if (ep->resp_active == 0)
+		wake_up(&ep->resp_wq);
+
+	return res;
+}
+
 /**
  * fc_exch_timeout() - Handle exchange timer expiration
  * @work: The work_struct identifying the exchange that timed out
@@ -689,8 +757,6 @@ static void fc_exch_timeout(struct work_struct *work)
 	struct fc_exch *ep = container_of(work, struct fc_exch,
 					  timeout_work.work);
 	struct fc_seq *sp = &ep->seq;
-	void (*resp)(struct fc_seq *, struct fc_frame *fp, void *arg);
-	void *arg;
 	u32 e_stat;
 	int rc = 1;
 
@@ -708,16 +774,13 @@ static void fc_exch_timeout(struct work_struct *work)
 			fc_exch_rrq(ep);
 		goto done;
 	} else {
-		resp = ep->resp;
-		arg = ep->arg;
-		ep->resp = NULL;
 		if (e_stat & ESB_ST_ABNORMAL)
 			rc = fc_exch_done_locked(ep);
 		spin_unlock_bh(&ep->ex_lock);
 		if (!rc)
 			fc_exch_delete(ep);
-		if (resp)
-			resp(sp, ERR_PTR(-FC_EX_TIMEOUT), arg);
+		fc_invoke_resp(ep, sp, ERR_PTR(-FC_EX_TIMEOUT));
+		fc_seq_set_resp(sp, NULL, ep->arg);
 		fc_seq_exch_abort(sp, 2 * ep->r_a_tov);
 		goto done;
 	}
@@ -804,6 +867,8 @@ hit:
 	ep->f_ctl = FC_FC_FIRST_SEQ;	/* next seq is first seq */
 	ep->rxid = FC_XID_UNKNOWN;
 	ep->class = mp->class;
+	ep->resp_active = 0;
+	init_waitqueue_head(&ep->resp_wq);
 	INIT_DELAYED_WORK(&ep->timeout_work, fc_exch_timeout);
 out:
 	return ep;
@@ -864,6 +929,8 @@ static struct fc_exch *fc_exch_find(struct fc_exch_mgr *mp, u16 xid)
  * fc_exch_done() - Indicate that an exchange/sequence tuple is complete and
  *		    the memory allocated for the related objects may be freed.
  * @sp: The sequence that has completed
+ *
+ * Note: May sleep if invoked from outside a response handler.
  */
 static void fc_exch_done(struct fc_seq *sp)
 {
@@ -873,6 +940,8 @@ static void fc_exch_done(struct fc_seq *sp)
 	spin_lock_bh(&ep->ex_lock);
 	rc = fc_exch_done_locked(ep);
 	spin_unlock_bh(&ep->ex_lock);
+
+	fc_seq_set_resp(sp, NULL, ep->arg);
 	if (!rc)
 		fc_exch_delete(ep);
 }
@@ -1436,9 +1505,7 @@ static void fc_exch_recv_req(struct fc_lport *lport, struct fc_exch_mgr *mp,
 		 * If new exch resp handler is valid then call that
 		 * first.
 		 */
-		if (ep->resp)
-			ep->resp(sp, fp, ep->arg);
-		else
+		if (!fc_invoke_resp(ep, sp, fp))
 			lport->tt.lport_recv(lport, fp);
 		fc_exch_release(ep);	/* release from lookup */
 	} else {
@@ -1462,8 +1529,6 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
 	struct fc_exch *ep;
 	enum fc_sof sof;
 	u32 f_ctl;
-	void (*resp)(struct fc_seq *, struct fc_frame *fp, void *arg);
-	void *ex_resp_arg;
 	int rc;
 
 	ep = fc_exch_find(mp, ntohs(fh->fh_ox_id));
@@ -1506,14 +1571,11 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
 
 	if (fc_sof_needs_ack(sof))
 		fc_seq_send_ack(sp, fp);
-	resp = ep->resp;
-	ex_resp_arg = ep->arg;
 
 	if (fh->fh_type != FC_TYPE_FCP && fr_eof(fp) == FC_EOF_T &&
 	    (f_ctl & (FC_FC_LAST_SEQ | FC_FC_END_SEQ)) ==
 	    (FC_FC_LAST_SEQ | FC_FC_END_SEQ)) {
 		spin_lock_bh(&ep->ex_lock);
-		resp = ep->resp;
 		rc = fc_exch_done_locked(ep);
 		WARN_ON(fc_seq_exch(sp) != ep);
 		spin_unlock_bh(&ep->ex_lock);
@@ -1534,10 +1596,8 @@ static void fc_exch_recv_seq_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
 	 * If new exch resp handler is valid then call that
 	 * first.
 	 */
-	if (resp)
-		resp(sp, fp, ex_resp_arg);
-	else
-		fc_frame_free(fp);
+	fc_invoke_resp(ep, sp, fp);
+
 	fc_exch_release(ep);
 	return;
 rel:
@@ -1576,8 +1636,6 @@ static void fc_exch_recv_resp(struct fc_exch_mgr *mp, struct fc_frame *fp)
  */
 static void fc_exch_abts_resp(struct fc_exch *ep, struct fc_frame *fp)
 {
-	void (*resp)(struct fc_seq *, struct fc_frame *fp, void *arg);
-	void *ex_resp_arg;
 	struct fc_frame_header *fh;
 	struct fc_ba_acc *ap;
 	struct fc_seq *sp;
@@ -1622,9 +1680,6 @@ static void fc_exch_abts_resp(struct fc_exch *ep, struct fc_frame *fp)
 		break;
 	}
 
-	resp = ep->resp;
-	ex_resp_arg = ep->arg;
-
 	/* do we need to do some other checks here. Can we reuse more of
 	 * fc_exch_recv_seq_resp
 	 */
@@ -1636,17 +1691,14 @@ static void fc_exch_abts_resp(struct fc_exch *ep, struct fc_frame *fp)
 	    ntoh24(fh->fh_f_ctl) & FC_FC_LAST_SEQ)
 		rc = fc_exch_done_locked(ep);
 	spin_unlock_bh(&ep->ex_lock);
+
+	fc_exch_hold(ep);
 	if (!rc)
 		fc_exch_delete(ep);
-
-	if (resp)
-		resp(sp, fp, ex_resp_arg);
-	else
-		fc_frame_free(fp);
-
+	fc_invoke_resp(ep, sp, fp);
 	if (has_rec)
 		fc_exch_timer_set(ep, ep->r_a_tov);
-
+	fc_exch_release(ep);
 }
 
 /**
@@ -1768,32 +1820,33 @@ static void fc_seq_ls_rjt(struct fc_frame *rx_fp, enum fc_els_rjt_reason reason,
 /**
  * fc_exch_reset() - Reset an exchange
  * @ep: The exchange to be reset
+ *
+ * Note: May sleep if invoked from outside a response handler.
  */
 static void fc_exch_reset(struct fc_exch *ep)
 {
 	struct fc_seq *sp;
-	void (*resp)(struct fc_seq *, struct fc_frame *, void *);
-	void *arg;
 	int rc = 1;
 
 	spin_lock_bh(&ep->ex_lock);
 	fc_exch_abort_locked(ep, 0);
 	ep->state |= FC_EX_RST_CLEANUP;
 	fc_exch_timer_cancel(ep);
-	resp = ep->resp;
-	ep->resp = NULL;
 	if (ep->esb_stat & ESB_ST_REC_QUAL)
 		atomic_dec(&ep->ex_refcnt);	/* drop hold for rec_qual */
 	ep->esb_stat &= ~ESB_ST_REC_QUAL;
-	arg = ep->arg;
 	sp = &ep->seq;
 	rc = fc_exch_done_locked(ep);
 	spin_unlock_bh(&ep->ex_lock);
+
+	fc_exch_hold(ep);
+
 	if (!rc)
 		fc_exch_delete(ep);
 
-	if (resp)
-		resp(sp, ERR_PTR(-FC_EX_CLOSED), arg);
+	fc_invoke_resp(ep, sp, ERR_PTR(-FC_EX_CLOSED));
+	fc_seq_set_resp(sp, NULL, ep->arg);
+	fc_exch_release(ep);
 }
 
 /**
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index e1379b4e8faf..52beadf9a29b 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -410,6 +410,12 @@ struct fc_seq {
  * @fh_type:      The frame type
  * @class:        The class of service
  * @seq:          The sequence in use on this exchange
+ * @resp_active:  Number of tasks that are concurrently executing @resp().
+ * @resp_task:    If @resp_active > 0, either the task executing @resp(), the
+ *                task that has been interrupted to execute the soft-IRQ
+ *                executing @resp() or NULL if more than one task is executing
+ *                @resp concurrently.
+ * @resp_wq:      Waitqueue for the tasks waiting on @resp_active.
  * @resp:         Callback for responses on this exchange
  * @destructor:   Called when destroying the exchange
  * @arg:          Passed as a void pointer to the resp() callback
@@ -441,6 +447,9 @@ struct fc_exch {
 	u32		    r_a_tov;
 	u32		    f_ctl;
 	struct fc_seq       seq;
+	int		    resp_active;
+	struct task_struct  *resp_task;
+	wait_queue_head_t   resp_wq;
 	void		    (*resp)(struct fc_seq *, struct fc_frame *, void *);
 	void		    *arg;
 	void		    (*destructor)(struct fc_seq *, void *);
-- 
cgit 


From 9de99010cbebca4d4343117eff1af9a64d5d4896 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 14 Aug 2013 15:40:49 +0000
Subject: fcp: Do not interpret check condition as underrun

This patch avoids that the FCoE initiator sends a REC message after
having received a SCSI response with non-zero status and non-zero
DATA IN buffer length.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---
 drivers/scsi/libfc/fc_fcp.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c
index 5fd0f1fbe586..1d7e76e8b447 100644
--- a/drivers/scsi/libfc/fc_fcp.c
+++ b/drivers/scsi/libfc/fc_fcp.c
@@ -902,7 +902,8 @@ static void fc_fcp_resp(struct fc_fcp_pkt *fsp, struct fc_frame *fp)
 	/*
 	 * Check for missing or extra data frames.
 	 */
-	if (unlikely(fsp->xfer_len != expected_len)) {
+	if (unlikely(fsp->cdb_status == SAM_STAT_GOOD &&
+		     fsp->xfer_len != expected_len)) {
 		if (fsp->xfer_len < expected_len) {
 			/*
 			 * Some data may be queued locally,
@@ -955,12 +956,11 @@ static void fc_fcp_complete_locked(struct fc_fcp_pkt *fsp)
 		 * Test for transport underrun, independent of response
 		 * underrun status.
 		 */
-		if (fsp->xfer_len < fsp->data_len && !fsp->io_status &&
+		if (fsp->cdb_status == SAM_STAT_GOOD &&
+		    fsp->xfer_len < fsp->data_len && !fsp->io_status &&
 		    (!(fsp->scsi_comp_flags & FCP_RESID_UNDER) ||
-		     fsp->xfer_len < fsp->data_len - fsp->scsi_resid)) {
+		     fsp->xfer_len < fsp->data_len - fsp->scsi_resid))
 			fsp->status_code = FC_DATA_UNDRUN;
-			fsp->io_status = 0;
-		}
 	}
 
 	seq = fsp->seq_ptr;
-- 
cgit 


From 41463a8851cd334341d143fbed558fa0c2e6865b Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 14 Aug 2013 15:41:22 +0000
Subject: fcoe: Declare fcoe_ctlr_mode_set() static

The function fcoe_ctlr_mode_set() is local, hence declare it static.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---
 drivers/scsi/fcoe/fcoe_ctlr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/fcoe/fcoe_ctlr.c b/drivers/scsi/fcoe/fcoe_ctlr.c
index 35b1fb73bd6b..9e83a790aa6b 100644
--- a/drivers/scsi/fcoe/fcoe_ctlr.c
+++ b/drivers/scsi/fcoe/fcoe_ctlr.c
@@ -2828,8 +2828,8 @@ unlock:
  * disabled, so that should ensure that this routine is only called
  * when nothing is happening.
  */
-void fcoe_ctlr_mode_set(struct fc_lport *lport, struct fcoe_ctlr *fip,
-			enum fip_state fip_mode)
+static void fcoe_ctlr_mode_set(struct fc_lport *lport, struct fcoe_ctlr *fip,
+			       enum fip_state fip_mode)
 {
 	void *priv;
 
-- 
cgit 


From 465b87bfe96a5b257804fd89aa982319e8c58064 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 14 Aug 2013 15:42:09 +0000
Subject: fcoe: Add missing newlines in debug messages

FCoE debug statements must end in a newline. Add one where it is missing.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---
 drivers/scsi/fcoe/fcoe.c       | 12 ++++++------
 drivers/scsi/fcoe/fcoe_sysfs.c | 12 ++++++------
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index 134ca3b471bf..dff40b2fccbd 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -1440,14 +1440,14 @@ static int fcoe_rcv(struct sk_buff *skb, struct net_device *netdev,
 	ctlr = fcoe_to_ctlr(fcoe);
 	lport = ctlr->lp;
 	if (unlikely(!lport)) {
-		FCOE_NETDEV_DBG(netdev, "Cannot find hba structure");
+		FCOE_NETDEV_DBG(netdev, "Cannot find hba structure\n");
 		goto err2;
 	}
 	if (!lport->link_up)
 		goto err2;
 
-	FCOE_NETDEV_DBG(netdev, "skb_info: len:%d data_len:%d head:%p "
-			"data:%p tail:%p end:%p sum:%d dev:%s",
+	FCOE_NETDEV_DBG(netdev,
+			"skb_info: len:%d data_len:%d head:%p data:%p tail:%p end:%p sum:%d dev:%s\n",
 			skb->len, skb->data_len, skb->head, skb->data,
 			skb_tail_pointer(skb), skb_end_pointer(skb),
 			skb->csum, skb->dev ? skb->dev->name : "<NULL>");
@@ -1794,13 +1794,13 @@ static void fcoe_recv_frame(struct sk_buff *skb)
 	lport = fr->fr_dev;
 	if (unlikely(!lport)) {
 		if (skb->destructor != fcoe_percpu_flush_done)
-			FCOE_NETDEV_DBG(skb->dev, "NULL lport in skb");
+			FCOE_NETDEV_DBG(skb->dev, "NULL lport in skb\n");
 		kfree_skb(skb);
 		return;
 	}
 
-	FCOE_NETDEV_DBG(skb->dev, "skb_info: len:%d data_len:%d "
-			"head:%p data:%p tail:%p end:%p sum:%d dev:%s",
+	FCOE_NETDEV_DBG(skb->dev,
+			"skb_info: len:%d data_len:%d head:%p data:%p tail:%p end:%p sum:%d dev:%s\n",
 			skb->len, skb->data_len,
 			skb->head, skb->data, skb_tail_pointer(skb),
 			skb_end_pointer(skb), skb->csum,
diff --git a/drivers/scsi/fcoe/fcoe_sysfs.c b/drivers/scsi/fcoe/fcoe_sysfs.c
index c9382d6eee78..922c9deeb243 100644
--- a/drivers/scsi/fcoe/fcoe_sysfs.c
+++ b/drivers/scsi/fcoe/fcoe_sysfs.c
@@ -300,29 +300,29 @@ static ssize_t store_ctlr_mode(struct device *dev,
 
 	switch (ctlr->enabled) {
 	case FCOE_CTLR_ENABLED:
-		LIBFCOE_SYSFS_DBG(ctlr, "Cannot change mode when enabled.");
+		LIBFCOE_SYSFS_DBG(ctlr, "Cannot change mode when enabled.\n");
 		return -EBUSY;
 	case FCOE_CTLR_DISABLED:
 		if (!ctlr->f->set_fcoe_ctlr_mode) {
 			LIBFCOE_SYSFS_DBG(ctlr,
-					  "Mode change not supported by LLD.");
+					  "Mode change not supported by LLD.\n");
 			return -ENOTSUPP;
 		}
 
 		ctlr->mode = fcoe_parse_mode(mode);
 		if (ctlr->mode == FIP_CONN_TYPE_UNKNOWN) {
-			LIBFCOE_SYSFS_DBG(ctlr,
-					  "Unknown mode %s provided.", buf);
+			LIBFCOE_SYSFS_DBG(ctlr, "Unknown mode %s provided.\n",
+					  buf);
 			return -EINVAL;
 		}
 
 		ctlr->f->set_fcoe_ctlr_mode(ctlr);
-		LIBFCOE_SYSFS_DBG(ctlr, "Mode changed to %s.", buf);
+		LIBFCOE_SYSFS_DBG(ctlr, "Mode changed to %s.\n", buf);
 
 		return count;
 	case FCOE_CTLR_UNUSED:
 	default:
-		LIBFCOE_SYSFS_DBG(ctlr, "Mode change not supported.");
+		LIBFCOE_SYSFS_DBG(ctlr, "Mode change not supported.\n");
 		return -ENOTSUPP;
 	};
 }
-- 
cgit 


From 1c2c1b4fbd413fd814807768d2aba9023722ed76 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 14 Aug 2013 15:42:46 +0000
Subject: fcoe: Reduce fcoe_sysfs_fcf_add() stack usage

This patch fixes the following compiler warning:

drivers/scsi/fcoe/fcoe_ctlr.c: In function fcoe_sysfs_fcf_add:
drivers/scsi/fcoe/fcoe_ctlr.c:211:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=]

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---
 drivers/scsi/fcoe/fcoe_ctlr.c | 40 +++++++++++++++++++++++-----------------
 1 file changed, 23 insertions(+), 17 deletions(-)

diff --git a/drivers/scsi/fcoe/fcoe_ctlr.c b/drivers/scsi/fcoe/fcoe_ctlr.c
index 9e83a790aa6b..692c6535fe75 100644
--- a/drivers/scsi/fcoe/fcoe_ctlr.c
+++ b/drivers/scsi/fcoe/fcoe_ctlr.c
@@ -164,28 +164,30 @@ static int fcoe_sysfs_fcf_add(struct fcoe_fcf *new)
 {
 	struct fcoe_ctlr *fip = new->fip;
 	struct fcoe_ctlr_device *ctlr_dev = fcoe_ctlr_to_ctlr_dev(fip);
-	struct fcoe_fcf_device temp, *fcf_dev;
-	int rc = 0;
+	struct fcoe_fcf_device *temp, *fcf_dev;
+	int rc = -ENOMEM;
 
 	LIBFCOE_FIP_DBG(fip, "New FCF fab %16.16llx mac %pM\n",
 			new->fabric_name, new->fcf_mac);
 
+	temp = kzalloc(sizeof(*temp), GFP_KERNEL);
+	if (!temp)
+		goto out;
+
 	mutex_lock(&ctlr_dev->lock);
 
-	temp.fabric_name = new->fabric_name;
-	temp.switch_name = new->switch_name;
-	temp.fc_map = new->fc_map;
-	temp.vfid = new->vfid;
-	memcpy(temp.mac, new->fcf_mac, ETH_ALEN);
-	temp.priority = new->pri;
-	temp.fka_period = new->fka_period;
-	temp.selected = 0; /* default to unselected */
-
-	fcf_dev = fcoe_fcf_device_add(ctlr_dev, &temp);
-	if (unlikely(!fcf_dev)) {
-		rc = -ENOMEM;
-		goto out;
-	}
+	temp->fabric_name = new->fabric_name;
+	temp->switch_name = new->switch_name;
+	temp->fc_map = new->fc_map;
+	temp->vfid = new->vfid;
+	memcpy(temp->mac, new->fcf_mac, ETH_ALEN);
+	temp->priority = new->pri;
+	temp->fka_period = new->fka_period;
+	temp->selected = 0; /* default to unselected */
+
+	fcf_dev = fcoe_fcf_device_add(ctlr_dev, temp);
+	if (unlikely(!fcf_dev))
+		goto unlock;
 
 	/*
 	 * The fcoe_sysfs layer can return a CONNECTED fcf that
@@ -204,9 +206,13 @@ static int fcoe_sysfs_fcf_add(struct fcoe_fcf *new)
 
 	list_add(&new->list, &fip->fcfs);
 	fip->fcf_count++;
+	rc = 0;
 
-out:
+unlock:
 	mutex_unlock(&ctlr_dev->lock);
+
+out:
+	kfree(temp);
 	return rc;
 }
 
-- 
cgit 


From 6f9dd30c22da4e48c4b7b837e9641f072e673161 Mon Sep 17 00:00:00 2001
From: Bojan Prtvar <prtvar.b@gmail.com>
Date: Tue, 3 Sep 2013 08:56:20 +0200
Subject: efivars: Mark local function as static

This fixes the following sparse warning
drivers/firmware/efi/efivars.c:567:6: warning: symbol 'efivars_sysfs_exit' was not declared. Should it be static?

Signed-off-by: Bojan Prtvar <prtvar.b@gmail.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 drivers/firmware/efi/efivars.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c
index 8a7432a4b413..933eb027d527 100644
--- a/drivers/firmware/efi/efivars.c
+++ b/drivers/firmware/efi/efivars.c
@@ -564,7 +564,7 @@ static int efivar_sysfs_destroy(struct efivar_entry *entry, void *data)
 	return 0;
 }
 
-void efivars_sysfs_exit(void)
+static void efivars_sysfs_exit(void)
 {
 	/* Remove all entries and destroy */
 	__efivar_entry_iter(efivar_sysfs_destroy, &efivar_sysfs_list, NULL, NULL);
-- 
cgit 


From d02d0545f1fc62302fd9973a530b8029f1d9a9f1 Mon Sep 17 00:00:00 2001
From: Leif Lindholm <leif.lindholm@linaro.org>
Date: Thu, 5 Sep 2013 11:34:53 +0100
Subject: ia64: add early_memremap() alias for early_ioremap()

early_ioremap() on IA64 chooses its mapping type based on the EFI
memory map. This patch adds an alias "early_memremap()" to be used
where the targeted location is memory rather than an i/o device.

Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 arch/ia64/include/asm/io.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/ia64/include/asm/io.h b/arch/ia64/include/asm/io.h
index 74a7cc3293bc..0d2bcb37ec35 100644
--- a/arch/ia64/include/asm/io.h
+++ b/arch/ia64/include/asm/io.h
@@ -424,6 +424,7 @@ extern void __iomem * ioremap(unsigned long offset, unsigned long size);
 extern void __iomem * ioremap_nocache (unsigned long offset, unsigned long size);
 extern void iounmap (volatile void __iomem *addr);
 extern void __iomem * early_ioremap (unsigned long phys_addr, unsigned long size);
+#define early_memremap(phys_addr, size)        early_ioremap(phys_addr, size)
 extern void early_iounmap (volatile void __iomem *addr, unsigned long size);
 static inline void __iomem * ioremap_cache (unsigned long phys_addr, unsigned long size)
 {
-- 
cgit 


From 272686bf46a34f86d270cf192f68769667792026 Mon Sep 17 00:00:00 2001
From: Leif Lindholm <leif.lindholm@linaro.org>
Date: Thu, 5 Sep 2013 11:34:54 +0100
Subject: efi: x86: ia64: provide a generic efi_config_init()

Common to (U)EFI support on all platforms is the global "efi" data
structure, and the code that parses the System Table to locate
addresses to populate that structure with.

This patch adds both of these to the global EFI driver code and
removes the local definition of the global "efi" data structure from
the x86 and ia64 code.

Squashed into one big patch to avoid breaking bisection.

Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Acked-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 arch/ia64/kernel/efi.c      |  54 +++++-----------------
 arch/x86/platform/efi/efi.c |  96 ++++-----------------------------------
 drivers/firmware/efi/efi.c  | 108 ++++++++++++++++++++++++++++++++++++++++++++
 include/linux/efi.h         |   7 +++
 4 files changed, 134 insertions(+), 131 deletions(-)

diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c
index 51bce594eb83..da5b462e6de6 100644
--- a/arch/ia64/kernel/efi.c
+++ b/arch/ia64/kernel/efi.c
@@ -44,10 +44,15 @@
 
 #define EFI_DEBUG	0
 
+static __initdata unsigned long palo_phys;
+
+static __initdata efi_config_table_type_t arch_tables[] = {
+	{PROCESSOR_ABSTRACTION_LAYER_OVERWRITE_GUID, "PALO", &palo_phys},
+	{NULL_GUID, NULL, 0},
+};
+
 extern efi_status_t efi_call_phys (void *, ...);
 
-struct efi efi;
-EXPORT_SYMBOL(efi);
 static efi_runtime_services_t *runtime;
 static u64 mem_limit = ~0UL, max_addr = ~0UL, min_addr = 0UL;
 
@@ -423,9 +428,9 @@ static u8 __init palo_checksum(u8 *buffer, u32 length)
  * Parse and handle PALO table which is published at:
  * http://www.dig64.org/home/DIG64_PALO_R1_0.pdf
  */
-static void __init handle_palo(unsigned long palo_phys)
+static void __init handle_palo(unsigned long phys_addr)
 {
-	struct palo_table *palo = __va(palo_phys);
+	struct palo_table *palo = __va(phys_addr);
 	u8  checksum;
 
 	if (strncmp(palo->signature, PALO_SIG, sizeof(PALO_SIG) - 1)) {
@@ -467,12 +472,10 @@ void __init
 efi_init (void)
 {
 	void *efi_map_start, *efi_map_end;
-	efi_config_table_t *config_tables;
 	efi_char16_t *c16;
 	u64 efi_desc_size;
 	char *cp, vendor[100] = "unknown";
 	int i;
-	unsigned long palo_phys;
 
 	/*
 	 * It's too early to be able to use the standard kernel command line
@@ -514,8 +517,6 @@ efi_init (void)
 		       efi.systab->hdr.revision >> 16,
 		       efi.systab->hdr.revision & 0xffff);
 
-	config_tables = __va(efi.systab->tables);
-
 	/* Show what we know for posterity */
 	c16 = __va(efi.systab->fw_vendor);
 	if (c16) {
@@ -528,43 +529,10 @@ efi_init (void)
 	       efi.systab->hdr.revision >> 16,
 	       efi.systab->hdr.revision & 0xffff, vendor);
 
-	efi.mps        = EFI_INVALID_TABLE_ADDR;
-	efi.acpi       = EFI_INVALID_TABLE_ADDR;
-	efi.acpi20     = EFI_INVALID_TABLE_ADDR;
-	efi.smbios     = EFI_INVALID_TABLE_ADDR;
-	efi.sal_systab = EFI_INVALID_TABLE_ADDR;
-	efi.boot_info  = EFI_INVALID_TABLE_ADDR;
-	efi.hcdp       = EFI_INVALID_TABLE_ADDR;
-	efi.uga        = EFI_INVALID_TABLE_ADDR;
-
 	palo_phys      = EFI_INVALID_TABLE_ADDR;
 
-	for (i = 0; i < (int) efi.systab->nr_tables; i++) {
-		if (efi_guidcmp(config_tables[i].guid, MPS_TABLE_GUID) == 0) {
-			efi.mps = config_tables[i].table;
-			printk(" MPS=0x%lx", config_tables[i].table);
-		} else if (efi_guidcmp(config_tables[i].guid, ACPI_20_TABLE_GUID) == 0) {
-			efi.acpi20 = config_tables[i].table;
-			printk(" ACPI 2.0=0x%lx", config_tables[i].table);
-		} else if (efi_guidcmp(config_tables[i].guid, ACPI_TABLE_GUID) == 0) {
-			efi.acpi = config_tables[i].table;
-			printk(" ACPI=0x%lx", config_tables[i].table);
-		} else if (efi_guidcmp(config_tables[i].guid, SMBIOS_TABLE_GUID) == 0) {
-			efi.smbios = config_tables[i].table;
-			printk(" SMBIOS=0x%lx", config_tables[i].table);
-		} else if (efi_guidcmp(config_tables[i].guid, SAL_SYSTEM_TABLE_GUID) == 0) {
-			efi.sal_systab = config_tables[i].table;
-			printk(" SALsystab=0x%lx", config_tables[i].table);
-		} else if (efi_guidcmp(config_tables[i].guid, HCDP_TABLE_GUID) == 0) {
-			efi.hcdp = config_tables[i].table;
-			printk(" HCDP=0x%lx", config_tables[i].table);
-		} else if (efi_guidcmp(config_tables[i].guid,
-			 PROCESSOR_ABSTRACTION_LAYER_OVERWRITE_GUID) == 0) {
-			palo_phys = config_tables[i].table;
-			printk(" PALO=0x%lx", config_tables[i].table);
-		}
-	}
-	printk("\n");
+	if (efi_config_init(arch_tables) != 0)
+		return;
 
 	if (palo_phys != EFI_INVALID_TABLE_ADDR)
 		handle_palo(palo_phys);
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 90f6ed127096..ed2be58ea3f1 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -60,19 +60,6 @@
 
 static efi_char16_t efi_dummy_name[6] = { 'D', 'U', 'M', 'M', 'Y', 0 };
 
-struct efi __read_mostly efi = {
-	.mps        = EFI_INVALID_TABLE_ADDR,
-	.acpi       = EFI_INVALID_TABLE_ADDR,
-	.acpi20     = EFI_INVALID_TABLE_ADDR,
-	.smbios     = EFI_INVALID_TABLE_ADDR,
-	.sal_systab = EFI_INVALID_TABLE_ADDR,
-	.boot_info  = EFI_INVALID_TABLE_ADDR,
-	.hcdp       = EFI_INVALID_TABLE_ADDR,
-	.uga        = EFI_INVALID_TABLE_ADDR,
-	.uv_systab  = EFI_INVALID_TABLE_ADDR,
-};
-EXPORT_SYMBOL(efi);
-
 struct efi_memory_map memmap;
 
 static struct efi efi_phys __initdata;
@@ -80,6 +67,13 @@ static efi_system_table_t efi_systab __initdata;
 
 unsigned long x86_efi_facility;
 
+static __initdata efi_config_table_type_t arch_tables[] = {
+#ifdef CONFIG_X86_UV
+	{UV_SYSTEM_TABLE_GUID, "UVsystab", &efi.uv_systab},
+#endif
+	{NULL_GUID, NULL, 0},
+};
+
 /*
  * Returns 1 if 'facility' is enabled, 0 otherwise.
  */
@@ -578,80 +572,6 @@ static int __init efi_systab_init(void *phys)
 	return 0;
 }
 
-static int __init efi_config_init(u64 tables, int nr_tables)
-{
-	void *config_tables, *tablep;
-	int i, sz;
-
-	if (efi_enabled(EFI_64BIT))
-		sz = sizeof(efi_config_table_64_t);
-	else
-		sz = sizeof(efi_config_table_32_t);
-
-	/*
-	 * Let's see what config tables the firmware passed to us.
-	 */
-	config_tables = early_ioremap(tables, nr_tables * sz);
-	if (config_tables == NULL) {
-		pr_err("Could not map Configuration table!\n");
-		return -ENOMEM;
-	}
-
-	tablep = config_tables;
-	pr_info("");
-	for (i = 0; i < efi.systab->nr_tables; i++) {
-		efi_guid_t guid;
-		unsigned long table;
-
-		if (efi_enabled(EFI_64BIT)) {
-			u64 table64;
-			guid = ((efi_config_table_64_t *)tablep)->guid;
-			table64 = ((efi_config_table_64_t *)tablep)->table;
-			table = table64;
-#ifdef CONFIG_X86_32
-			if (table64 >> 32) {
-				pr_cont("\n");
-				pr_err("Table located above 4GB, disabling EFI.\n");
-				early_iounmap(config_tables,
-					      efi.systab->nr_tables * sz);
-				return -EINVAL;
-			}
-#endif
-		} else {
-			guid = ((efi_config_table_32_t *)tablep)->guid;
-			table = ((efi_config_table_32_t *)tablep)->table;
-		}
-		if (!efi_guidcmp(guid, MPS_TABLE_GUID)) {
-			efi.mps = table;
-			pr_cont(" MPS=0x%lx ", table);
-		} else if (!efi_guidcmp(guid, ACPI_20_TABLE_GUID)) {
-			efi.acpi20 = table;
-			pr_cont(" ACPI 2.0=0x%lx ", table);
-		} else if (!efi_guidcmp(guid, ACPI_TABLE_GUID)) {
-			efi.acpi = table;
-			pr_cont(" ACPI=0x%lx ", table);
-		} else if (!efi_guidcmp(guid, SMBIOS_TABLE_GUID)) {
-			efi.smbios = table;
-			pr_cont(" SMBIOS=0x%lx ", table);
-#ifdef CONFIG_X86_UV
-		} else if (!efi_guidcmp(guid, UV_SYSTEM_TABLE_GUID)) {
-			efi.uv_systab = table;
-			pr_cont(" UVsystab=0x%lx ", table);
-#endif
-		} else if (!efi_guidcmp(guid, HCDP_TABLE_GUID)) {
-			efi.hcdp = table;
-			pr_cont(" HCDP=0x%lx ", table);
-		} else if (!efi_guidcmp(guid, UGA_IO_PROTOCOL_GUID)) {
-			efi.uga = table;
-			pr_cont(" UGA=0x%lx ", table);
-		}
-		tablep += sz;
-	}
-	pr_cont("\n");
-	early_iounmap(config_tables, efi.systab->nr_tables * sz);
-	return 0;
-}
-
 static int __init efi_runtime_init(void)
 {
 	efi_runtime_services_t *runtime;
@@ -745,7 +665,7 @@ void __init efi_init(void)
 		efi.systab->hdr.revision >> 16,
 		efi.systab->hdr.revision & 0xffff, vendor);
 
-	if (efi_config_init(efi.systab->tables, efi.systab->nr_tables))
+	if (efi_config_init(arch_tables))
 		return;
 
 	set_bit(EFI_CONFIG_TABLES, &x86_efi_facility);
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index 5145fa344ad5..e1010d450b65 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -13,11 +13,27 @@
  * This file is released under the GPLv2.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/kobject.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/device.h>
 #include <linux/efi.h>
+#include <linux/io.h>
+
+struct efi __read_mostly efi = {
+	.mps        = EFI_INVALID_TABLE_ADDR,
+	.acpi       = EFI_INVALID_TABLE_ADDR,
+	.acpi20     = EFI_INVALID_TABLE_ADDR,
+	.smbios     = EFI_INVALID_TABLE_ADDR,
+	.sal_systab = EFI_INVALID_TABLE_ADDR,
+	.boot_info  = EFI_INVALID_TABLE_ADDR,
+	.hcdp       = EFI_INVALID_TABLE_ADDR,
+	.uga        = EFI_INVALID_TABLE_ADDR,
+	.uv_systab  = EFI_INVALID_TABLE_ADDR,
+};
+EXPORT_SYMBOL(efi);
 
 static struct kobject *efi_kobj;
 static struct kobject *efivars_kobj;
@@ -132,3 +148,95 @@ err_put:
 }
 
 subsys_initcall(efisubsys_init);
+
+
+static __initdata efi_config_table_type_t common_tables[] = {
+	{ACPI_20_TABLE_GUID, "ACPI 2.0", &efi.acpi20},
+	{ACPI_TABLE_GUID, "ACPI", &efi.acpi},
+	{HCDP_TABLE_GUID, "HCDP", &efi.hcdp},
+	{MPS_TABLE_GUID, "MPS", &efi.mps},
+	{SAL_SYSTEM_TABLE_GUID, "SALsystab", &efi.sal_systab},
+	{SMBIOS_TABLE_GUID, "SMBIOS", &efi.smbios},
+	{UGA_IO_PROTOCOL_GUID, "UGA", &efi.uga},
+	{NULL_GUID, NULL, 0},
+};
+
+static __init int match_config_table(efi_guid_t *guid,
+				     unsigned long table,
+				     efi_config_table_type_t *table_types)
+{
+	u8 str[EFI_VARIABLE_GUID_LEN + 1];
+	int i;
+
+	if (table_types) {
+		efi_guid_unparse(guid, str);
+
+		for (i = 0; efi_guidcmp(table_types[i].guid, NULL_GUID); i++) {
+			efi_guid_unparse(&table_types[i].guid, str);
+
+			if (!efi_guidcmp(*guid, table_types[i].guid)) {
+				*(table_types[i].ptr) = table;
+				pr_cont(" %s=0x%lx ",
+					table_types[i].name, table);
+				return 1;
+			}
+		}
+	}
+
+	return 0;
+}
+
+int __init efi_config_init(efi_config_table_type_t *arch_tables)
+{
+	void *config_tables, *tablep;
+	int i, sz;
+
+	if (efi_enabled(EFI_64BIT))
+		sz = sizeof(efi_config_table_64_t);
+	else
+		sz = sizeof(efi_config_table_32_t);
+
+	/*
+	 * Let's see what config tables the firmware passed to us.
+	 */
+	config_tables = early_memremap(efi.systab->tables,
+				       efi.systab->nr_tables * sz);
+	if (config_tables == NULL) {
+		pr_err("Could not map Configuration table!\n");
+		return -ENOMEM;
+	}
+
+	tablep = config_tables;
+	pr_info("");
+	for (i = 0; i < efi.systab->nr_tables; i++) {
+		efi_guid_t guid;
+		unsigned long table;
+
+		if (efi_enabled(EFI_64BIT)) {
+			u64 table64;
+			guid = ((efi_config_table_64_t *)tablep)->guid;
+			table64 = ((efi_config_table_64_t *)tablep)->table;
+			table = table64;
+#ifndef CONFIG_64BIT
+			if (table64 >> 32) {
+				pr_cont("\n");
+				pr_err("Table located above 4GB, disabling EFI.\n");
+				early_iounmap(config_tables,
+					       efi.systab->nr_tables * sz);
+				return -EINVAL;
+			}
+#endif
+		} else {
+			guid = ((efi_config_table_32_t *)tablep)->guid;
+			table = ((efi_config_table_32_t *)tablep)->table;
+		}
+
+		if (!match_config_table(&guid, table, common_tables))
+			match_config_table(&guid, table, arch_tables);
+
+		tablep += sz;
+	}
+	pr_cont("\n");
+	early_iounmap(config_tables, efi.systab->nr_tables * sz);
+	return 0;
+}
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 5f8f176154f7..09d9e4212799 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -404,6 +404,12 @@ typedef struct {
 	unsigned long table;
 } efi_config_table_t;
 
+typedef struct {
+	efi_guid_t guid;
+	const char *name;
+	unsigned long *ptr;
+} efi_config_table_type_t;
+
 #define EFI_SYSTEM_TABLE_SIGNATURE ((u64)0x5453595320494249ULL)
 
 #define EFI_2_30_SYSTEM_TABLE_REVISION  ((2 << 16) | (30))
@@ -587,6 +593,7 @@ static inline efi_status_t efi_query_variable_store(u32 attributes, unsigned lon
 }
 #endif
 extern void __iomem *efi_lookup_mapped_addr(u64 phys_addr);
+extern int efi_config_init(efi_config_table_type_t *arch_tables);
 extern u64 efi_get_iobase (void);
 extern u32 efi_mem_type (unsigned long phys_addr);
 extern u64 efi_mem_attributes (unsigned long phys_addr);
-- 
cgit 


From 258f6fd738221766b512cd8c7120563b78d62829 Mon Sep 17 00:00:00 2001
From: Leif Lindholm <leif.lindholm@linaro.org>
Date: Thu, 5 Sep 2013 11:34:55 +0100
Subject: efi: x86: make efi_lookup_mapped_addr() a common function

efi_lookup_mapped_addr() is a handy utility for other platforms than
x86. Move it from arch/x86 to drivers/firmware. Add memmap pointer
to global efi structure, and initialise it on x86.

Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 arch/x86/platform/efi/efi.c | 30 ++----------------------------
 drivers/firmware/efi/efi.c  | 32 ++++++++++++++++++++++++++++++++
 include/linux/efi.h         |  1 +
 3 files changed, 35 insertions(+), 28 deletions(-)

diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index ed2be58ea3f1..fbc1d70188f8 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -393,6 +393,8 @@ int __init efi_memblock_x86_reserve_range(void)
 
 	memblock_reserve(pmap, memmap.nr_map * memmap.desc_size);
 
+	efi.memmap = &memmap;
+
 	return 0;
 }
 
@@ -736,34 +738,6 @@ static void __init runtime_code_page_mkexec(void)
 	}
 }
 
-/*
- * We can't ioremap data in EFI boot services RAM, because we've already mapped
- * it as RAM.  So, look it up in the existing EFI memory map instead.  Only
- * callable after efi_enter_virtual_mode and before efi_free_boot_services.
- */
-void __iomem *efi_lookup_mapped_addr(u64 phys_addr)
-{
-	void *p;
-	if (WARN_ON(!memmap.map))
-		return NULL;
-	for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) {
-		efi_memory_desc_t *md = p;
-		u64 size = md->num_pages << EFI_PAGE_SHIFT;
-		u64 end = md->phys_addr + size;
-		if (!(md->attribute & EFI_MEMORY_RUNTIME) &&
-		    md->type != EFI_BOOT_SERVICES_CODE &&
-		    md->type != EFI_BOOT_SERVICES_DATA)
-			continue;
-		if (!md->virt_addr)
-			continue;
-		if (phys_addr >= md->phys_addr && phys_addr < end) {
-			phys_addr += md->virt_addr - md->phys_addr;
-			return (__force void __iomem *)(unsigned long)phys_addr;
-		}
-	}
-	return NULL;
-}
-
 void efi_memory_uc(u64 addr, unsigned long size)
 {
 	unsigned long page_shift = 1UL << EFI_PAGE_SHIFT;
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index e1010d450b65..2e2fbdec0845 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -150,6 +150,38 @@ err_put:
 subsys_initcall(efisubsys_init);
 
 
+/*
+ * We can't ioremap data in EFI boot services RAM, because we've already mapped
+ * it as RAM.  So, look it up in the existing EFI memory map instead.  Only
+ * callable after efi_enter_virtual_mode and before efi_free_boot_services.
+ */
+void __iomem *efi_lookup_mapped_addr(u64 phys_addr)
+{
+	struct efi_memory_map *map;
+	void *p;
+	map = efi.memmap;
+	if (!map)
+		return NULL;
+	if (WARN_ON(!map->map))
+		return NULL;
+	for (p = map->map; p < map->map_end; p += map->desc_size) {
+		efi_memory_desc_t *md = p;
+		u64 size = md->num_pages << EFI_PAGE_SHIFT;
+		u64 end = md->phys_addr + size;
+		if (!(md->attribute & EFI_MEMORY_RUNTIME) &&
+		    md->type != EFI_BOOT_SERVICES_CODE &&
+		    md->type != EFI_BOOT_SERVICES_DATA)
+			continue;
+		if (!md->virt_addr)
+			continue;
+		if (phys_addr >= md->phys_addr && phys_addr < end) {
+			phys_addr += md->virt_addr - md->phys_addr;
+			return (__force void __iomem *)(unsigned long)phys_addr;
+		}
+	}
+	return NULL;
+}
+
 static __initdata efi_config_table_type_t common_tables[] = {
 	{ACPI_20_TABLE_GUID, "ACPI 2.0", &efi.acpi20},
 	{ACPI_TABLE_GUID, "ACPI", &efi.acpi},
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 09d9e4212799..c084b6d942c3 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -558,6 +558,7 @@ extern struct efi {
 	efi_get_next_high_mono_count_t *get_next_high_mono_count;
 	efi_reset_system_t *reset_system;
 	efi_set_virtual_address_map_t *set_virtual_address_map;
+	struct efi_memory_map *memmap;
 } efi;
 
 static inline int
-- 
cgit 


From 55d761b8787afa60c361c30799f3bff681e42b1b Mon Sep 17 00:00:00 2001
From: Dave Jones <davej@redhat.com>
Date: Wed, 4 Sep 2013 23:51:28 -0400
Subject: ath10k: add missing braces to ath10k_pci_tx_pipe_cleanup

The indentation here implies this was meant to be
a multi-statement if, but it lacks the braces.

kvalo: add "ath10k: " prefix

Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 622901d5237f..880fcd0d604f 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -1316,7 +1316,7 @@ static void ath10k_pci_tx_pipe_cleanup(struct ath10k_pci_pipe *pipe_info)
 
 	while (ath10k_ce_cancel_send_next(ce_hdl, (void **)&netbuf,
 					  &ce_data, &nbytes, &id) == 0) {
-		if (netbuf != CE_SENDLIST_ITEM_CTXT)
+		if (netbuf != CE_SENDLIST_ITEM_CTXT) {
 			/*
 			 * Indicate the completion to higer layer to free
 			 * the buffer
@@ -1325,6 +1325,7 @@ static void ath10k_pci_tx_pipe_cleanup(struct ath10k_pci_pipe *pipe_info)
 			ar_pci->msg_callbacks_current.tx_completion(ar,
 								    netbuf,
 								    id);
+		}
 	}
 }
 
-- 
cgit 


From a9bf05062d13b255d4231ca2637892d9b381a9d4 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Tue, 3 Sep 2013 11:43:55 +0300
Subject: ath10k: add trace event ath10k_htt_stats

For analysing various data path statistics in user space.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt_rx.c |  5 ++++-
 drivers/net/wireless/ath/ath10k/trace.h  | 21 +++++++++++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index 9bb0ae89fdba..af31d2f6c9a1 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -20,6 +20,7 @@
 #include "htt.h"
 #include "txrx.h"
 #include "debug.h"
+#include "trace.h"
 
 #include <linux/log2.h>
 
@@ -1198,8 +1199,10 @@ void ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb)
 	case HTT_T2H_MSG_TYPE_TEST:
 		/* FIX THIS */
 		break;
-	case HTT_T2H_MSG_TYPE_TX_INSPECT_IND:
 	case HTT_T2H_MSG_TYPE_STATS_CONF:
+		trace_ath10k_htt_stats(skb->data, skb->len);
+		break;
+	case HTT_T2H_MSG_TYPE_TX_INSPECT_IND:
 	case HTT_T2H_MSG_TYPE_RX_ADDBA:
 	case HTT_T2H_MSG_TYPE_RX_DELBA:
 	case HTT_T2H_MSG_TYPE_RX_FLUSH:
diff --git a/drivers/net/wireless/ath/ath10k/trace.h b/drivers/net/wireless/ath/ath10k/trace.h
index 85e806bf7257..bf1ceb88438b 100644
--- a/drivers/net/wireless/ath/ath10k/trace.h
+++ b/drivers/net/wireless/ath/ath10k/trace.h
@@ -158,6 +158,27 @@ TRACE_EVENT(ath10k_wmi_event,
 	)
 );
 
+TRACE_EVENT(ath10k_htt_stats,
+	TP_PROTO(void *buf, size_t buf_len),
+
+	TP_ARGS(buf, buf_len),
+
+	TP_STRUCT__entry(
+		__field(size_t, buf_len)
+		__dynamic_array(u8, buf, buf_len)
+	),
+
+	TP_fast_assign(
+		__entry->buf_len = buf_len;
+		memcpy(__get_dynamic_array(buf), buf, buf_len);
+	),
+
+	TP_printk(
+		"len %zu",
+		__entry->buf_len
+	)
+);
+
 #endif /* _TRACE_H_ || TRACE_HEADER_MULTI_READ*/
 
 /* we don't want to use include/trace/events */
-- 
cgit 


From db66ea0442daaa4ee5fb8b3083bde1728ca3a9ba Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Tue, 3 Sep 2013 11:44:03 +0300
Subject: ath10k: implement ath10k_debug_start/stop()

Needed for the HTT stats implementation.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.c  |  6 ++++++
 drivers/net/wireless/ath/ath10k/debug.c | 10 ++++++++++
 drivers/net/wireless/ath/ath10k/debug.h | 11 +++++++++++
 3 files changed, 27 insertions(+)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 2dd39a82ae99..4f2b0e7f2065 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -630,6 +630,10 @@ int ath10k_core_start(struct ath10k *ar)
 	if (status)
 		goto err_disconnect_htc;
 
+	status = ath10k_debug_start(ar);
+	if (status)
+		goto err_disconnect_htc;
+
 	ar->free_vdev_map = (1 << TARGET_NUM_VDEVS) - 1;
 
 	return 0;
@@ -647,6 +651,7 @@ EXPORT_SYMBOL(ath10k_core_start);
 
 void ath10k_core_stop(struct ath10k *ar)
 {
+	ath10k_debug_stop(ar);
 	ath10k_htc_stop(&ar->htc);
 	ath10k_htt_detach(&ar->htt);
 	ath10k_wmi_detach(ar);
@@ -777,6 +782,7 @@ void ath10k_core_unregister(struct ath10k *ar)
 	 * Otherwise we will fail to submit commands to FW and mac80211 will be
 	 * unhappy about callback failures. */
 	ath10k_mac_unregister(ar);
+
 	ath10k_core_free_firmware_files(ar);
 }
 EXPORT_SYMBOL(ath10k_core_unregister);
diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index 09f535a1c767..219d4692e548 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -517,6 +517,15 @@ static const struct file_operations fops_chip_id = {
 	.llseek = default_llseek,
 };
 
+int ath10k_debug_start(struct ath10k *ar)
+{
+	return 0;
+}
+
+void ath10k_debug_stop(struct ath10k *ar)
+{
+}
+
 int ath10k_debug_create(struct ath10k *ar)
 {
 	ar->debug.debugfs_phy = debugfs_create_dir("ath10k",
@@ -541,6 +550,7 @@ int ath10k_debug_create(struct ath10k *ar)
 
 	return 0;
 }
+
 #endif /* CONFIG_ATH10K_DEBUGFS */
 
 #ifdef CONFIG_ATH10K_DEBUG
diff --git a/drivers/net/wireless/ath/ath10k/debug.h b/drivers/net/wireless/ath/ath10k/debug.h
index 168140c54028..9c442a82c493 100644
--- a/drivers/net/wireless/ath/ath10k/debug.h
+++ b/drivers/net/wireless/ath/ath10k/debug.h
@@ -42,6 +42,8 @@ extern __printf(1, 2) int ath10k_err(const char *fmt, ...);
 extern __printf(1, 2) int ath10k_warn(const char *fmt, ...);
 
 #ifdef CONFIG_ATH10K_DEBUGFS
+int ath10k_debug_start(struct ath10k *ar);
+void ath10k_debug_stop(struct ath10k *ar);
 int ath10k_debug_create(struct ath10k *ar);
 void ath10k_debug_read_service_map(struct ath10k *ar,
 				   void *service_map,
@@ -50,6 +52,15 @@ void ath10k_debug_read_target_stats(struct ath10k *ar,
 				    struct wmi_stats_event *ev);
 
 #else
+int ath10k_debug_start(struct ath10k *ar)
+{
+	return 0;
+}
+
+void ath10k_debug_stop(struct ath10k *ar)
+{
+}
+
 static inline int ath10k_debug_create(struct ath10k *ar)
 {
 	return 0;
-- 
cgit 


From a3d135e566e269c7cfed51355c422e7e1c0b2b39 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Tue, 3 Sep 2013 11:44:10 +0300
Subject: ath10k: add htt_stats_enable debugfs file

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.h   |   3 +
 drivers/net/wireless/ath/ath10k/debug.c  | 111 +++++++++++++++++++++++++++++++
 drivers/net/wireless/ath/ath10k/htt.h    |   1 +
 drivers/net/wireless/ath/ath10k/htt_tx.c |  42 ++++++++++++
 4 files changed, 157 insertions(+)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 174c4b404223..22b17d6ed90e 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -246,6 +246,9 @@ struct ath10k_debug {
 	u32 wmi_service_bitmap[WMI_SERVICE_BM_SIZE];
 
 	struct completion event_stats_compl;
+
+	unsigned long htt_stats_mask;
+	struct delayed_work htt_stats_dwork;
 };
 
 enum ath10k_state {
diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index 219d4692e548..59615c7f217e 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -21,6 +21,9 @@
 #include "core.h"
 #include "debug.h"
 
+/* ms */
+#define ATH10K_DEBUG_HTT_STATS_INTERVAL 1000
+
 static int ath10k_printk(const char *level, const char *fmt, ...)
 {
 	struct va_format vaf;
@@ -517,13 +520,115 @@ static const struct file_operations fops_chip_id = {
 	.llseek = default_llseek,
 };
 
+static int ath10k_debug_htt_stats_req(struct ath10k *ar)
+{
+	u64 cookie;
+	int ret;
+
+	lockdep_assert_held(&ar->conf_mutex);
+
+	if (ar->debug.htt_stats_mask == 0)
+		/* htt stats are disabled */
+		return 0;
+
+	if (ar->state != ATH10K_STATE_ON)
+		return 0;
+
+	cookie = get_jiffies_64();
+
+	ret = ath10k_htt_h2t_stats_req(&ar->htt, ar->debug.htt_stats_mask,
+				       cookie);
+	if (ret) {
+		ath10k_warn("failed to send htt stats request: %d\n", ret);
+		return ret;
+	}
+
+	queue_delayed_work(ar->workqueue, &ar->debug.htt_stats_dwork,
+			   msecs_to_jiffies(ATH10K_DEBUG_HTT_STATS_INTERVAL));
+
+	return 0;
+}
+
+static void ath10k_debug_htt_stats_dwork(struct work_struct *work)
+{
+	struct ath10k *ar = container_of(work, struct ath10k,
+					 debug.htt_stats_dwork.work);
+
+	mutex_lock(&ar->conf_mutex);
+
+	ath10k_debug_htt_stats_req(ar);
+
+	mutex_unlock(&ar->conf_mutex);
+}
+
+static ssize_t ath10k_read_htt_stats_mask(struct file *file,
+					    char __user *user_buf,
+					    size_t count, loff_t *ppos)
+{
+	struct ath10k *ar = file->private_data;
+	char buf[32];
+	unsigned int len;
+
+	len = scnprintf(buf, sizeof(buf), "%lu\n", ar->debug.htt_stats_mask);
+
+	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static ssize_t ath10k_write_htt_stats_mask(struct file *file,
+					     const char __user *user_buf,
+					     size_t count, loff_t *ppos)
+{
+	struct ath10k *ar = file->private_data;
+	unsigned long mask;
+	int ret;
+
+	ret = kstrtoul_from_user(user_buf, count, 0, &mask);
+	if (ret)
+		return ret;
+
+	/* max 8 bit masks (for now) */
+	if (mask > 0xff)
+		return -E2BIG;
+
+	mutex_lock(&ar->conf_mutex);
+
+	ar->debug.htt_stats_mask = mask;
+
+	ret = ath10k_debug_htt_stats_req(ar);
+	if (ret)
+		goto out;
+
+	ret = count;
+
+out:
+	mutex_unlock(&ar->conf_mutex);
+
+	return ret;
+}
+
+static const struct file_operations fops_htt_stats_mask = {
+	.read = ath10k_read_htt_stats_mask,
+	.write = ath10k_write_htt_stats_mask,
+	.open = simple_open,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,
+};
+
 int ath10k_debug_start(struct ath10k *ar)
 {
+	int ret;
+
+	ret = ath10k_debug_htt_stats_req(ar);
+	if (ret)
+		/* continue normally anyway, this isn't serious */
+		ath10k_warn("failed to start htt stats workqueue: %d\n", ret);
+
 	return 0;
 }
 
 void ath10k_debug_stop(struct ath10k *ar)
 {
+	cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
 }
 
 int ath10k_debug_create(struct ath10k *ar)
@@ -534,6 +639,9 @@ int ath10k_debug_create(struct ath10k *ar)
 	if (!ar->debug.debugfs_phy)
 		return -ENOMEM;
 
+	INIT_DELAYED_WORK(&ar->debug.htt_stats_dwork,
+			  ath10k_debug_htt_stats_dwork);
+
 	init_completion(&ar->debug.event_stats_compl);
 
 	debugfs_create_file("fw_stats", S_IRUSR, ar->debug.debugfs_phy, ar,
@@ -548,6 +656,9 @@ int ath10k_debug_create(struct ath10k *ar)
 	debugfs_create_file("chip_id", S_IRUSR, ar->debug.debugfs_phy,
 			    ar, &fops_chip_id);
 
+	debugfs_create_file("htt_stats_mask", S_IRUSR, ar->debug.debugfs_phy,
+			    ar, &fops_htt_stats_mask);
+
 	return 0;
 }
 
diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h
index 26c78a907f97..e090902cfd84 100644
--- a/drivers/net/wireless/ath/ath10k/htt.h
+++ b/drivers/net/wireless/ath/ath10k/htt.h
@@ -1327,6 +1327,7 @@ void ath10k_htt_rx_detach(struct ath10k_htt *htt);
 void ath10k_htt_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb);
 void ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb);
 int ath10k_htt_h2t_ver_req_msg(struct ath10k_htt *htt);
+int ath10k_htt_h2t_stats_req(struct ath10k_htt *htt, u8 mask, u64 cookie);
 int ath10k_htt_send_rx_ring_cfg_ll(struct ath10k_htt *htt);
 
 void __ath10k_htt_tx_dec_pending(struct ath10k_htt *htt);
diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c
index d4fb3875c918..b6b142046d83 100644
--- a/drivers/net/wireless/ath/ath10k/htt_tx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_tx.c
@@ -203,6 +203,48 @@ int ath10k_htt_h2t_ver_req_msg(struct ath10k_htt *htt)
 	return 0;
 }
 
+int ath10k_htt_h2t_stats_req(struct ath10k_htt *htt, u8 mask, u64 cookie)
+{
+	struct htt_stats_req *req;
+	struct sk_buff *skb;
+	struct htt_cmd *cmd;
+	int len = 0, ret;
+
+	len += sizeof(cmd->hdr);
+	len += sizeof(cmd->stats_req);
+
+	skb = ath10k_htc_alloc_skb(len);
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, len);
+	cmd = (struct htt_cmd *)skb->data;
+	cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_STATS_REQ;
+
+	req = &cmd->stats_req;
+
+	memset(req, 0, sizeof(*req));
+
+	/* currently we support only max 8 bit masks so no need to worry
+	 * about endian support */
+	req->upload_types[0] = mask;
+	req->reset_types[0] = mask;
+	req->stat_type = HTT_STATS_REQ_CFG_STAT_TYPE_INVALID;
+	req->cookie_lsb = cpu_to_le32(cookie & 0xffffffff);
+	req->cookie_msb = cpu_to_le32((cookie & 0xffffffff00000000ULL) >> 32);
+
+	ATH10K_SKB_CB(skb)->htt.is_conf = true;
+
+	ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb);
+	if (ret) {
+		ath10k_warn("failed to send htt type stats request: %d", ret);
+		dev_kfree_skb_any(skb);
+		return ret;
+	}
+
+	return 0;
+}
+
 int ath10k_htt_send_rx_ring_cfg_ll(struct ath10k_htt *htt)
 {
 	struct sk_buff *skb;
-- 
cgit 


From 03fc137b509fa698d9337ee54f765aa13fefd319 Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Tue, 3 Sep 2013 14:24:02 +0200
Subject: ath10k: set the UART baud rate to 19200

When configuring the host_interests over BMI, set the UART
baud rate to 19200. This is valid for QCA988X_2.0 devices.

kvalo: found during code review, there should not be any functionality
changes

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 4f2b0e7f2065..8a688393b380 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -435,6 +435,13 @@ static int ath10k_init_uart(struct ath10k *ar)
 		return ret;
 	}
 
+	/* Set the UART baud rate to 19200. */
+	ret = ath10k_bmi_write32(ar, hi_desired_baud_rate, 19200);
+	if (ret) {
+		ath10k_warn("could not set the baud rate (%d)\n", ret);
+		return ret;
+	}
+
 	ath10k_info("UART prints enabled\n");
 	return 0;
 }
-- 
cgit 


From b8a1e00f1a9b861512b17038afda9e2f8b9f9bea Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Tue, 3 Sep 2013 14:24:03 +0200
Subject: ath10k: remove obsolete INIT STATUS definitions

There's no functional changes. Just a small cleanup.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/wmi.h | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 08860c475721..40fcf05ecc57 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -763,14 +763,6 @@ struct wmi_service_ready_event {
 	struct wlan_host_mem_req mem_reqs[1];
 } __packed;
 
-/*
- * status consists of  upper 16 bits fo int status and lower 16 bits of
- * module ID that retuned status
- */
-#define WLAN_INIT_STATUS_SUCCESS   0x0
-#define WLAN_GET_INIT_STATUS_REASON(status)    ((status) & 0xffff)
-#define WLAN_GET_INIT_STATUS_MODULE_ID(status) (((status) >> 16) & 0xffff)
-
 #define WMI_SERVICE_READY_TIMEOUT_HZ (5*HZ)
 #define WMI_UNIFIED_READY_TIMEOUT_HZ (5*HZ)
 
-- 
cgit 


From 1e319cecdb4800e03a803e96da63091de0165ecb Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sat, 31 Aug 2013 18:12:00 +0100
Subject: staging: iio: ad7192: Use devm_* APIs and fix a memory leak

devm_* APIs are device managed and make code simpler.

The memory leak was a lack of freeing the iio_dev structure in the
remove function.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/ad7192.c | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index 3283e2829536..83bb44b38152 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -623,17 +623,17 @@ static int ad7192_probe(struct spi_device *spi)
 		return -ENODEV;
 	}
 
-	indio_dev = iio_device_alloc(sizeof(*st));
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
 	if (indio_dev == NULL)
 		return -ENOMEM;
 
 	st = iio_priv(indio_dev);
 
-	st->reg = regulator_get(&spi->dev, "vcc");
+	st->reg = devm_regulator_get(&spi->dev, "vcc");
 	if (!IS_ERR(st->reg)) {
 		ret = regulator_enable(st->reg);
 		if (ret)
-			goto error_put_reg;
+			return ret;
 
 		voltage_uv = regulator_get_voltage(st->reg);
 	}
@@ -677,11 +677,6 @@ error_remove_trigger:
 error_disable_reg:
 	if (!IS_ERR(st->reg))
 		regulator_disable(st->reg);
-error_put_reg:
-	if (!IS_ERR(st->reg))
-		regulator_put(st->reg);
-
-	iio_device_free(indio_dev);
 
 	return ret;
 }
@@ -694,10 +689,8 @@ static int ad7192_remove(struct spi_device *spi)
 	iio_device_unregister(indio_dev);
 	ad_sd_cleanup_buffer_and_trigger(indio_dev);
 
-	if (!IS_ERR(st->reg)) {
+	if (!IS_ERR(st->reg))
 		regulator_disable(st->reg);
-		regulator_put(st->reg);
-	}
 
 	return 0;
 }
-- 
cgit 


From 0a2f0265b6dabab8342ac3374bcb47340d654e08 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sat, 31 Aug 2013 18:12:00 +0100
Subject: staging: iio: ad7280a: Use devm_iio_device_alloc

devm_iio_device_alloc makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/ad7280a.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/iio/adc/ad7280a.c b/drivers/staging/iio/adc/ad7280a.c
index c19618bc37c4..e7191e44a970 100644
--- a/drivers/staging/iio/adc/ad7280a.c
+++ b/drivers/staging/iio/adc/ad7280a.c
@@ -835,8 +835,9 @@ static int ad7280_probe(struct spi_device *spi)
 	int ret;
 	const unsigned short tACQ_ns[4] = {465, 1010, 1460, 1890};
 	const unsigned short nAVG[4] = {1, 2, 4, 8};
-	struct iio_dev *indio_dev = iio_device_alloc(sizeof(*st));
+	struct iio_dev *indio_dev;
 
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
 	if (indio_dev == NULL)
 		return -ENOMEM;
 
@@ -860,7 +861,7 @@ static int ad7280_probe(struct spi_device *spi)
 
 	ret = ad7280_chain_setup(st);
 	if (ret < 0)
-		goto error_free_device;
+		return ret;
 
 	st->slave_num = ret;
 	st->scan_cnt = (st->slave_num + 1) * AD7280A_NUM_CH;
@@ -891,7 +892,7 @@ static int ad7280_probe(struct spi_device *spi)
 
 	ret = ad7280_channel_init(st);
 	if (ret < 0)
-		goto error_free_device;
+		return ret;
 
 	indio_dev->num_channels = ret;
 	indio_dev->channels = st->channels;
@@ -940,9 +941,6 @@ error_free_attr:
 error_free_channels:
 	kfree(st->channels);
 
-error_free_device:
-	iio_device_free(indio_dev);
-
 	return ret;
 }
 
@@ -960,7 +958,6 @@ static int ad7280_remove(struct spi_device *spi)
 
 	kfree(st->channels);
 	kfree(st->iio_attr);
-	iio_device_free(indio_dev);
 
 	return 0;
 }
-- 
cgit 


From 3e70bad95a3fd6829093018ca263dcf579b69183 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sat, 31 Aug 2013 18:12:00 +0100
Subject: staging: iio: ad7291: Use devm_* APIs

devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/ad7291.c | 27 ++++++++-------------------
 1 file changed, 8 insertions(+), 19 deletions(-)

diff --git a/drivers/staging/iio/adc/ad7291.c b/drivers/staging/iio/adc/ad7291.c
index a2e61c2fc8d1..1dae1efe41c7 100644
--- a/drivers/staging/iio/adc/ad7291.c
+++ b/drivers/staging/iio/adc/ad7291.c
@@ -528,21 +528,19 @@ static int ad7291_probe(struct i2c_client *client,
 	struct iio_dev *indio_dev;
 	int ret = 0;
 
-	indio_dev = iio_device_alloc(sizeof(*chip));
-	if (indio_dev == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
+	if (!indio_dev)
+		return -ENOMEM;
 	chip = iio_priv(indio_dev);
 
 	if (pdata && pdata->use_external_ref) {
-		chip->reg = regulator_get(&client->dev, "vref");
+		chip->reg = devm_regulator_get(&client->dev, "vref");
 		if (IS_ERR(chip->reg))
-			goto error_free;
+			return ret;
 
 		ret = regulator_enable(chip->reg);
 		if (ret)
-			goto error_put_reg;
+			return ret;
 	}
 
 	mutex_init(&chip->state_lock);
@@ -601,12 +599,7 @@ error_unreg_irq:
 error_disable_reg:
 	if (chip->reg)
 		regulator_disable(chip->reg);
-error_put_reg:
-	if (chip->reg)
-		regulator_put(chip->reg);
-error_free:
-	iio_device_free(indio_dev);
-error_ret:
+
 	return ret;
 }
 
@@ -620,12 +613,8 @@ static int ad7291_remove(struct i2c_client *client)
 	if (client->irq)
 		free_irq(client->irq, indio_dev);
 
-	if (chip->reg) {
+	if (chip->reg)
 		regulator_disable(chip->reg);
-		regulator_put(chip->reg);
-	}
-
-	iio_device_free(indio_dev);
 
 	return 0;
 }
-- 
cgit 


From 3727245a78c74e9375faf5e08d7189322dbe0581 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sat, 31 Aug 2013 18:12:00 +0100
Subject: staging: iio: ad7606_core: Use devm_* APIs

devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/ad7606_core.c | 23 +++++++----------------
 1 file changed, 7 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/iio/adc/ad7606_core.c b/drivers/staging/iio/adc/ad7606_core.c
index 72868ceda360..0eb5ed05fbb8 100644
--- a/drivers/staging/iio/adc/ad7606_core.c
+++ b/drivers/staging/iio/adc/ad7606_core.c
@@ -466,12 +466,11 @@ struct iio_dev *ad7606_probe(struct device *dev, int irq,
 	struct ad7606_platform_data *pdata = dev->platform_data;
 	struct ad7606_state *st;
 	int ret;
-	struct iio_dev *indio_dev = iio_device_alloc(sizeof(*st));
+	struct iio_dev *indio_dev;
 
-	if (indio_dev == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
+	indio_dev = devm_iio_device_alloc(dev, sizeof(*st));
+	if (!indio_dev)
+		return ERR_PTR(-ENOMEM);
 
 	st = iio_priv(indio_dev);
 
@@ -489,11 +488,11 @@ struct iio_dev *ad7606_probe(struct device *dev, int irq,
 		st->oversampling = pdata->default_os;
 	}
 
-	st->reg = regulator_get(dev, "vcc");
+	st->reg = devm_regulator_get(dev, "vcc");
 	if (!IS_ERR(st->reg)) {
 		ret = regulator_enable(st->reg);
 		if (ret)
-			goto error_put_reg;
+			return ERR_PTR(ret);
 	}
 
 	st->pdata = pdata;
@@ -554,11 +553,6 @@ error_free_gpios:
 error_disable_reg:
 	if (!IS_ERR(st->reg))
 		regulator_disable(st->reg);
-error_put_reg:
-	if (!IS_ERR(st->reg))
-		regulator_put(st->reg);
-	iio_device_free(indio_dev);
-error_ret:
 	return ERR_PTR(ret);
 }
 
@@ -570,13 +564,10 @@ int ad7606_remove(struct iio_dev *indio_dev, int irq)
 	ad7606_ring_cleanup(indio_dev);
 
 	free_irq(irq, indio_dev);
-	if (!IS_ERR(st->reg)) {
+	if (!IS_ERR(st->reg))
 		regulator_disable(st->reg);
-		regulator_put(st->reg);
-	}
 
 	ad7606_free_gpios(st);
-	iio_device_free(indio_dev);
 
 	return 0;
 }
-- 
cgit 


From 4f6b38c8bf8b721a1e6153004c2a0c7301620205 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sat, 31 Aug 2013 18:12:00 +0100
Subject: staging: iio: ad7780: Use devm_* APIs

devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/ad7780.c | 28 +++++++---------------------
 1 file changed, 7 insertions(+), 21 deletions(-)

diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c
index e1f88603d7e0..4f2522a9edfb 100644
--- a/drivers/staging/iio/adc/ad7780.c
+++ b/drivers/staging/iio/adc/ad7780.c
@@ -171,7 +171,7 @@ static int ad7780_probe(struct spi_device *spi)
 	struct iio_dev *indio_dev;
 	int ret, voltage_uv = 0;
 
-	indio_dev = iio_device_alloc(sizeof(*st));
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
 	if (indio_dev == NULL)
 		return -ENOMEM;
 
@@ -180,11 +180,11 @@ static int ad7780_probe(struct spi_device *spi)
 
 	ad_sd_init(&st->sd, indio_dev, spi, &ad7780_sigma_delta_info);
 
-	st->reg = regulator_get(&spi->dev, "vcc");
+	st->reg = devm_regulator_get(&spi->dev, "vcc");
 	if (!IS_ERR(st->reg)) {
 		ret = regulator_enable(st->reg);
 		if (ret)
-			goto error_put_reg;
+			return ret;
 
 		voltage_uv = regulator_get_voltage(st->reg);
 	}
@@ -210,8 +210,8 @@ static int ad7780_probe(struct spi_device *spi)
 
 	if (pdata && gpio_is_valid(pdata->gpio_pdrst)) {
 
-		ret = gpio_request_one(pdata->gpio_pdrst, GPIOF_OUT_INIT_LOW,
-			       "AD7780 /PDRST");
+		ret = devm_gpio_request_one(&spi->dev, pdata->gpio_pdrst,
+					GPIOF_OUT_INIT_LOW, "AD7780 /PDRST");
 		if (ret) {
 			dev_err(&spi->dev, "failed to request GPIO PDRST\n");
 			goto error_disable_reg;
@@ -223,7 +223,7 @@ static int ad7780_probe(struct spi_device *spi)
 
 	ret = ad_sd_setup_buffer_and_trigger(indio_dev);
 	if (ret)
-		goto error_free_gpio;
+		goto error_disable_reg;
 
 	ret = iio_device_register(indio_dev);
 	if (ret)
@@ -233,17 +233,9 @@ static int ad7780_probe(struct spi_device *spi)
 
 error_cleanup_buffer_and_trigger:
 	ad_sd_cleanup_buffer_and_trigger(indio_dev);
-error_free_gpio:
-	if (pdata && gpio_is_valid(pdata->gpio_pdrst))
-		gpio_free(pdata->gpio_pdrst);
 error_disable_reg:
 	if (!IS_ERR(st->reg))
 		regulator_disable(st->reg);
-error_put_reg:
-	if (!IS_ERR(st->reg))
-		regulator_put(st->reg);
-
-	iio_device_free(indio_dev);
 
 	return ret;
 }
@@ -256,14 +248,8 @@ static int ad7780_remove(struct spi_device *spi)
 	iio_device_unregister(indio_dev);
 	ad_sd_cleanup_buffer_and_trigger(indio_dev);
 
-	if (gpio_is_valid(st->powerdown_gpio))
-		gpio_free(st->powerdown_gpio);
-
-	if (!IS_ERR(st->reg)) {
+	if (!IS_ERR(st->reg))
 		regulator_disable(st->reg);
-		regulator_put(st->reg);
-	}
-	iio_device_free(indio_dev);
 
 	return 0;
 }
-- 
cgit 


From e5bf4f5b7d95ff7e6359df7845047dd9e6df6f3e Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sat, 31 Aug 2013 18:12:00 +0100
Subject: staging: iio: ad7816: Use devm_* APIs

devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/ad7816.c | 59 ++++++++++++++--------------------------
 1 file changed, 20 insertions(+), 39 deletions(-)

diff --git a/drivers/staging/iio/adc/ad7816.c b/drivers/staging/iio/adc/ad7816.c
index 8470036a3378..9f48e5c74eed 100644
--- a/drivers/staging/iio/adc/ad7816.c
+++ b/drivers/staging/iio/adc/ad7816.c
@@ -356,11 +356,9 @@ static int ad7816_probe(struct spi_device *spi_dev)
 		return -EINVAL;
 	}
 
-	indio_dev = iio_device_alloc(sizeof(*chip));
-	if (indio_dev == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
+	indio_dev = devm_iio_device_alloc(&spi_dev->dev, sizeof(*chip));
+	if (!indio_dev)
+		return -ENOMEM;
 	chip = iio_priv(indio_dev);
 	/* this is only used for device removal purposes */
 	dev_set_drvdata(&spi_dev->dev, indio_dev);
@@ -372,25 +370,28 @@ static int ad7816_probe(struct spi_device *spi_dev)
 	chip->convert_pin = pins[1];
 	chip->busy_pin = pins[2];
 
-	ret = gpio_request(chip->rdwr_pin, spi_get_device_id(spi_dev)->name);
+	ret = devm_gpio_request(&spi_dev->dev, chip->rdwr_pin,
+					spi_get_device_id(spi_dev)->name);
 	if (ret) {
 		dev_err(&spi_dev->dev, "Fail to request rdwr gpio PIN %d.\n",
 			chip->rdwr_pin);
-		goto error_free_device;
+		return ret;
 	}
 	gpio_direction_input(chip->rdwr_pin);
-	ret = gpio_request(chip->convert_pin, spi_get_device_id(spi_dev)->name);
+	ret = devm_gpio_request(&spi_dev->dev, chip->convert_pin,
+					spi_get_device_id(spi_dev)->name);
 	if (ret) {
 		dev_err(&spi_dev->dev, "Fail to request convert gpio PIN %d.\n",
 			chip->convert_pin);
-		goto error_free_gpio_rdwr;
+		return ret;
 	}
 	gpio_direction_input(chip->convert_pin);
-	ret = gpio_request(chip->busy_pin, spi_get_device_id(spi_dev)->name);
+	ret = devm_gpio_request(&spi_dev->dev, chip->busy_pin,
+					spi_get_device_id(spi_dev)->name);
 	if (ret) {
 		dev_err(&spi_dev->dev, "Fail to request busy gpio PIN %d.\n",
 			chip->busy_pin);
-		goto error_free_gpio_convert;
+		return ret;
 	}
 	gpio_direction_input(chip->busy_pin);
 
@@ -401,51 +402,31 @@ static int ad7816_probe(struct spi_device *spi_dev)
 
 	if (spi_dev->irq) {
 		/* Only low trigger is supported in ad7816/7/8 */
-		ret = request_threaded_irq(spi_dev->irq,
-					   NULL,
-					   &ad7816_event_handler,
-					   IRQF_TRIGGER_LOW | IRQF_ONESHOT,
-					   indio_dev->name,
-					   indio_dev);
+		ret = devm_request_threaded_irq(&spi_dev->dev, spi_dev->irq,
+						NULL,
+						&ad7816_event_handler,
+						IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+						indio_dev->name,
+						indio_dev);
 		if (ret)
-			goto error_free_gpio;
+			return ret;
 	}
 
 	ret = iio_device_register(indio_dev);
 	if (ret)
-		goto error_free_irq;
+		return ret;
 
 	dev_info(&spi_dev->dev, "%s temperature sensor and ADC registered.\n",
 			 indio_dev->name);
 
 	return 0;
-error_free_irq:
-	free_irq(spi_dev->irq, indio_dev);
-error_free_gpio:
-	gpio_free(chip->busy_pin);
-error_free_gpio_convert:
-	gpio_free(chip->convert_pin);
-error_free_gpio_rdwr:
-	gpio_free(chip->rdwr_pin);
-error_free_device:
-	iio_device_free(indio_dev);
-error_ret:
-	return ret;
 }
 
 static int ad7816_remove(struct spi_device *spi_dev)
 {
 	struct iio_dev *indio_dev = dev_get_drvdata(&spi_dev->dev);
-	struct ad7816_chip_info *chip = iio_priv(indio_dev);
 
 	iio_device_unregister(indio_dev);
-	dev_set_drvdata(&spi_dev->dev, NULL);
-	if (spi_dev->irq)
-		free_irq(spi_dev->irq, indio_dev);
-	gpio_free(chip->busy_pin);
-	gpio_free(chip->convert_pin);
-	gpio_free(chip->rdwr_pin);
-	iio_device_free(indio_dev);
 
 	return 0;
 }
-- 
cgit 


From 6a88fa48263117687cd592c2030b13bd95895391 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sat, 31 Aug 2013 18:12:00 +0100
Subject: staging: iio: ad799x_core: Use devm_* APIs

devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/ad799x_core.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/iio/adc/ad799x_core.c b/drivers/staging/iio/adc/ad799x_core.c
index 2b2049c8bc6b..3f5142b284d1 100644
--- a/drivers/staging/iio/adc/ad799x_core.c
+++ b/drivers/staging/iio/adc/ad799x_core.c
@@ -586,8 +586,9 @@ static int ad799x_probe(struct i2c_client *client,
 	int ret;
 	struct ad799x_platform_data *pdata = client->dev.platform_data;
 	struct ad799x_state *st;
-	struct iio_dev *indio_dev = iio_device_alloc(sizeof(*st));
+	struct iio_dev *indio_dev;
 
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*st));
 	if (indio_dev == NULL)
 		return -ENOMEM;
 
@@ -606,11 +607,11 @@ static int ad799x_probe(struct i2c_client *client,
 
 	st->int_vref_mv = pdata->vref_mv;
 
-	st->reg = regulator_get(&client->dev, "vcc");
+	st->reg = devm_regulator_get(&client->dev, "vcc");
 	if (!IS_ERR(st->reg)) {
 		ret = regulator_enable(st->reg);
 		if (ret)
-			goto error_put_reg;
+			return ret;
 	}
 	st->client = client;
 
@@ -650,10 +651,6 @@ error_cleanup_ring:
 error_disable_reg:
 	if (!IS_ERR(st->reg))
 		regulator_disable(st->reg);
-error_put_reg:
-	if (!IS_ERR(st->reg))
-		regulator_put(st->reg);
-	iio_device_free(indio_dev);
 
 	return ret;
 }
@@ -668,12 +665,9 @@ static int ad799x_remove(struct i2c_client *client)
 		free_irq(client->irq, indio_dev);
 
 	ad799x_ring_cleanup(indio_dev);
-	if (!IS_ERR(st->reg)) {
+	if (!IS_ERR(st->reg))
 		regulator_disable(st->reg);
-		regulator_put(st->reg);
-	}
 	kfree(st->rx_buf);
-	iio_device_free(indio_dev);
 
 	return 0;
 }
-- 
cgit 


From 7d456e4ea28c193ccb5312bdd7fe168c30c2d96a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sat, 31 Aug 2013 18:12:00 +0100
Subject: staging: iio: lpc32xx_adc: Use devm_* APIs

devm_* APIs are device managed and make code simpler.
This also fixes an error in return type during clk_get
failure.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Roland Stigge <stigge@antcom.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/lpc32xx_adc.c | 49 ++++++++++-------------------------
 1 file changed, 14 insertions(+), 35 deletions(-)

diff --git a/drivers/staging/iio/adc/lpc32xx_adc.c b/drivers/staging/iio/adc/lpc32xx_adc.c
index 9a4bb0999b51..ce7ff3e6cd21 100644
--- a/drivers/staging/iio/adc/lpc32xx_adc.c
+++ b/drivers/staging/iio/adc/lpc32xx_adc.c
@@ -137,43 +137,39 @@ static int lpc32xx_adc_probe(struct platform_device *pdev)
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res) {
 		dev_err(&pdev->dev, "failed to get platform I/O memory\n");
-		retval = -EBUSY;
-		goto errout1;
+		return -EBUSY;
 	}
 
-	iodev = iio_device_alloc(sizeof(struct lpc32xx_adc_info));
-	if (!iodev) {
-		dev_err(&pdev->dev, "failed allocating iio device\n");
-		retval = -ENOMEM;
-		goto errout1;
-	}
+	iodev = devm_iio_device_alloc(&pdev->dev, sizeof(*info));
+	if (!iodev)
+		return -ENOMEM;
 
 	info = iio_priv(iodev);
 
-	info->adc_base = ioremap(res->start, resource_size(res));
+	info->adc_base = devm_ioremap(&pdev->dev, res->start,
+						resource_size(res));
 	if (!info->adc_base) {
 		dev_err(&pdev->dev, "failed mapping memory\n");
-		retval = -EBUSY;
-		goto errout2;
+		return -EBUSY;
 	}
 
-	info->clk = clk_get(&pdev->dev, NULL);
+	info->clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(info->clk)) {
 		dev_err(&pdev->dev, "failed getting clock\n");
-		goto errout3;
+		return PTR_ERR(info->clk);
 	}
 
 	irq = platform_get_irq(pdev, 0);
 	if ((irq < 0) || (irq >= NR_IRQS)) {
 		dev_err(&pdev->dev, "failed getting interrupt resource\n");
-		retval = -EINVAL;
-		goto errout4;
+		return -EINVAL;
 	}
 
-	retval = request_irq(irq, lpc32xx_adc_isr, 0, MOD_NAME, info);
+	retval = devm_request_irq(&pdev->dev, irq, lpc32xx_adc_isr, 0,
+								MOD_NAME, info);
 	if (retval < 0) {
 		dev_err(&pdev->dev, "failed requesting interrupt\n");
-		goto errout4;
+		return retval;
 	}
 
 	platform_set_drvdata(pdev, iodev);
@@ -189,35 +185,18 @@ static int lpc32xx_adc_probe(struct platform_device *pdev)
 
 	retval = iio_device_register(iodev);
 	if (retval)
-		goto errout5;
+		return retval;
 
 	dev_info(&pdev->dev, "LPC32XX ADC driver loaded, IRQ %d\n", irq);
 
 	return 0;
-
-errout5:
-	free_irq(irq, info);
-errout4:
-	clk_put(info->clk);
-errout3:
-	iounmap(info->adc_base);
-errout2:
-	iio_device_free(iodev);
-errout1:
-	return retval;
 }
 
 static int lpc32xx_adc_remove(struct platform_device *pdev)
 {
 	struct iio_dev *iodev = platform_get_drvdata(pdev);
-	struct lpc32xx_adc_info *info = iio_priv(iodev);
-	int irq = platform_get_irq(pdev, 0);
 
 	iio_device_unregister(iodev);
-	free_irq(irq, info);
-	clk_put(info->clk);
-	iounmap(info->adc_base);
-	iio_device_free(iodev);
 
 	return 0;
 }
-- 
cgit 


From 7af9648fbc024a2e7ac1094fbdbc23229e189190 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sat, 31 Aug 2013 18:12:00 +0100
Subject: staging: iio: adt7316: Use devm_* APIs

devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/addac/adt7316.c | 48 +++++++++++++------------------------
 1 file changed, 16 insertions(+), 32 deletions(-)

diff --git a/drivers/staging/iio/addac/adt7316.c b/drivers/staging/iio/addac/adt7316.c
index 1e1356825d6d..514ddcc88dd1 100644
--- a/drivers/staging/iio/addac/adt7316.c
+++ b/drivers/staging/iio/addac/adt7316.c
@@ -2106,11 +2106,9 @@ int adt7316_probe(struct device *dev, struct adt7316_bus *bus,
 	unsigned short *adt7316_platform_data = dev->platform_data;
 	int ret = 0;
 
-	indio_dev = iio_device_alloc(sizeof(*chip));
-	if (indio_dev == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
+	indio_dev = devm_iio_device_alloc(dev, sizeof(*chip));
+	if (!indio_dev)
+		return -ENOMEM;
 	chip = iio_priv(indio_dev);
 	/* this is only used for device removal purposes */
 	dev_set_drvdata(dev, indio_dev);
@@ -2146,58 +2144,44 @@ int adt7316_probe(struct device *dev, struct adt7316_bus *bus,
 		if (adt7316_platform_data[0])
 			chip->bus.irq_flags = adt7316_platform_data[0];
 
-		ret = request_threaded_irq(chip->bus.irq,
-					   NULL,
-					   &adt7316_event_handler,
-					   chip->bus.irq_flags | IRQF_ONESHOT,
-					   indio_dev->name,
-					   indio_dev);
+		ret = devm_request_threaded_irq(dev, chip->bus.irq,
+						NULL,
+						&adt7316_event_handler,
+						chip->bus.irq_flags |
+						IRQF_ONESHOT,
+						indio_dev->name,
+						indio_dev);
 		if (ret)
-			goto error_free_dev;
+			return ret;
 
 		if (chip->bus.irq_flags & IRQF_TRIGGER_HIGH)
 			chip->config1 |= ADT7316_INT_POLARITY;
 	}
 
 	ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG1, chip->config1);
-	if (ret) {
-		ret = -EIO;
-		goto error_unreg_irq;
-	}
+	if (ret)
+		return -EIO;
 
 	ret = chip->bus.write(chip->bus.client, ADT7316_CONFIG3, chip->config3);
-	if (ret) {
-		ret = -EIO;
-		goto error_unreg_irq;
-	}
+	if (ret)
+		return -EIO;
 
 	ret = iio_device_register(indio_dev);
 	if (ret)
-		goto error_unreg_irq;
+		return ret;
 
 	dev_info(dev, "%s temperature sensor, ADC and DAC registered.\n",
 			indio_dev->name);
 
 	return 0;
-
-error_unreg_irq:
-	free_irq(chip->bus.irq, indio_dev);
-error_free_dev:
-	iio_device_free(indio_dev);
-error_ret:
-	return ret;
 }
 EXPORT_SYMBOL(adt7316_probe);
 
 int adt7316_remove(struct device *dev)
 {
 	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-	struct adt7316_chip_info *chip = iio_priv(indio_dev);
 
 	iio_device_unregister(indio_dev);
-	if (chip->bus.irq)
-		free_irq(chip->bus.irq, indio_dev);
-	iio_device_free(indio_dev);
 
 	return 0;
 }
-- 
cgit 


From 53703a493347ff2b43a6988bb5fcfa602e7ce67e Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 5 Sep 2013 10:29:00 +0100
Subject: staging: iio: ad5933: Use devm_* APIs

devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/impedance-analyzer/ad5933.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c
index 6330af656a0f..23a0d7179303 100644
--- a/drivers/staging/iio/impedance-analyzer/ad5933.c
+++ b/drivers/staging/iio/impedance-analyzer/ad5933.c
@@ -703,7 +703,9 @@ static int ad5933_probe(struct i2c_client *client,
 	int ret, voltage_uv = 0;
 	struct ad5933_platform_data *pdata = client->dev.platform_data;
 	struct ad5933_state *st;
-	struct iio_dev *indio_dev = iio_device_alloc(sizeof(*st));
+	struct iio_dev *indio_dev;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*st));
 	if (indio_dev == NULL)
 		return -ENOMEM;
 
@@ -716,11 +718,11 @@ static int ad5933_probe(struct i2c_client *client,
 	else
 		st->pdata = pdata;
 
-	st->reg = regulator_get(&client->dev, "vcc");
+	st->reg = devm_regulator_get(&client->dev, "vcc");
 	if (!IS_ERR(st->reg)) {
 		ret = regulator_enable(st->reg);
 		if (ret)
-			goto error_put_reg;
+			return ret;
 		voltage_uv = regulator_get_voltage(st->reg);
 	}
 
@@ -778,11 +780,6 @@ error_unreg_ring:
 error_disable_reg:
 	if (!IS_ERR(st->reg))
 		regulator_disable(st->reg);
-error_put_reg:
-	if (!IS_ERR(st->reg))
-		regulator_put(st->reg);
-
-	iio_device_free(indio_dev);
 
 	return ret;
 }
@@ -795,11 +792,8 @@ static int ad5933_remove(struct i2c_client *client)
 	iio_device_unregister(indio_dev);
 	iio_buffer_unregister(indio_dev);
 	iio_kfifo_free(indio_dev->buffer);
-	if (!IS_ERR(st->reg)) {
+	if (!IS_ERR(st->reg))
 		regulator_disable(st->reg);
-		regulator_put(st->reg);
-	}
-	iio_device_free(indio_dev);
 
 	return 0;
 }
-- 
cgit 


From 664716aedacbfd02535717b67be88678b348502a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 5 Sep 2013 10:29:00 +0100
Subject: staging: iio: tsl2583: Use devm_iio_device_alloc

devm_iio_device_alloc makes the code simple. While at it also
fixed an uninitialized return with -EINVAL.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: J. August Brenner <jbrenner@taosinc.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/light/tsl2583.c | 24 ++++++++----------------
 1 file changed, 8 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/iio/light/tsl2583.c b/drivers/staging/iio/light/tsl2583.c
index b377dd3b76ad..d2aaf16883ce 100644
--- a/drivers/staging/iio/light/tsl2583.c
+++ b/drivers/staging/iio/light/tsl2583.c
@@ -815,12 +815,9 @@ static int taos_probe(struct i2c_client *clientp,
 		return -EOPNOTSUPP;
 	}
 
-	indio_dev = iio_device_alloc(sizeof(*chip));
-	if (indio_dev == NULL) {
-		ret = -ENOMEM;
-		dev_err(&clientp->dev, "iio allocation failed\n");
-		goto fail1;
-	}
+	indio_dev = devm_iio_device_alloc(&clientp->dev, sizeof(*chip));
+	if (!indio_dev)
+		return -ENOMEM;
 	chip = iio_priv(indio_dev);
 	chip->client = clientp;
 	i2c_set_clientdata(clientp, indio_dev);
@@ -835,14 +832,14 @@ static int taos_probe(struct i2c_client *clientp,
 		if (ret < 0) {
 			dev_err(&clientp->dev, "i2c_smbus_write_bytes() to cmd "
 				"reg failed in taos_probe(), err = %d\n", ret);
-			goto fail2;
+			return ret;
 		}
 		ret = i2c_smbus_read_byte(clientp);
 		if (ret < 0) {
 			dev_err(&clientp->dev, "i2c_smbus_read_byte from "
 				"reg failed in taos_probe(), err = %d\n", ret);
 
-			goto fail2;
+			return ret;
 		}
 		buf[i] = ret;
 	}
@@ -850,14 +847,14 @@ static int taos_probe(struct i2c_client *clientp,
 	if (!taos_tsl258x_device(buf)) {
 		dev_info(&clientp->dev, "i2c device found but does not match "
 			"expected id in taos_probe()\n");
-		goto fail2;
+		return -EINVAL;
 	}
 
 	ret = i2c_smbus_write_byte(clientp, (TSL258X_CMD_REG | TSL258X_CNTRL));
 	if (ret < 0) {
 		dev_err(&clientp->dev, "i2c_smbus_write_byte() to cmd reg "
 			"failed in taos_probe(), err = %d\n", ret);
-		goto fail2;
+		return ret;
 	}
 
 	indio_dev->info = &tsl2583_info;
@@ -867,7 +864,7 @@ static int taos_probe(struct i2c_client *clientp,
 	ret = iio_device_register(indio_dev);
 	if (ret) {
 		dev_err(&clientp->dev, "iio registration failed\n");
-		goto fail2;
+		return ret;
 	}
 
 	/* Load up the V2 defaults (these are hard coded defaults for now) */
@@ -878,10 +875,6 @@ static int taos_probe(struct i2c_client *clientp,
 
 	dev_info(&clientp->dev, "Light sensor found.\n");
 	return 0;
-fail1:
-	iio_device_free(indio_dev);
-fail2:
-	return ret;
 }
 
 #ifdef CONFIG_PM_SLEEP
@@ -926,7 +919,6 @@ static SIMPLE_DEV_PM_OPS(taos_pm_ops, taos_suspend, taos_resume);
 static int taos_remove(struct i2c_client *client)
 {
 	iio_device_unregister(i2c_get_clientdata(client));
-	iio_device_free(i2c_get_clientdata(client));
 
 	return 0;
 }
-- 
cgit 


From 85bf6ee3657621eb2b73892fa681081ee31cdee3 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 5 Sep 2013 10:29:00 +0100
Subject: staging: iio: ad5930: Use devm_iio_device_alloc

devm_iio_device_alloc makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/frequency/ad5930.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/iio/frequency/ad5930.c b/drivers/staging/iio/frequency/ad5930.c
index 69e90e9e60ea..a4aeee6ffdf2 100644
--- a/drivers/staging/iio/frequency/ad5930.c
+++ b/drivers/staging/iio/frequency/ad5930.c
@@ -94,11 +94,9 @@ static int ad5930_probe(struct spi_device *spi)
 	struct iio_dev *idev;
 	int ret = 0;
 
-	idev = iio_device_alloc(sizeof(*st));
-	if (idev == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
+	idev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+	if (!idev)
+		return -ENOMEM;
 	spi_set_drvdata(spi, idev);
 	st = iio_priv(idev);
 
@@ -110,24 +108,18 @@ static int ad5930_probe(struct spi_device *spi)
 
 	ret = iio_device_register(idev);
 	if (ret)
-		goto error_free_dev;
+		return ret;
 	spi->max_speed_hz = 2000000;
 	spi->mode = SPI_MODE_3;
 	spi->bits_per_word = 16;
 	spi_setup(spi);
 
 	return 0;
-
-error_free_dev:
-	iio_device_free(idev);
-error_ret:
-	return ret;
 }
 
 static int ad5930_remove(struct spi_device *spi)
 {
 	iio_device_unregister(spi_get_drvdata(spi));
-	iio_device_free(spi_get_drvdata(spi));
 
 	return 0;
 }
-- 
cgit 


From 2487329502f6931ea5c160e7d9f6031f9c736c3e Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 5 Sep 2013 10:29:00 +0100
Subject: staging: iio: ad9832: Use devm_* APIs

devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/frequency/ad9832.c | 32 ++++++++++++--------------------
 1 file changed, 12 insertions(+), 20 deletions(-)

diff --git a/drivers/staging/iio/frequency/ad9832.c b/drivers/staging/iio/frequency/ad9832.c
index 4e18380c5141..adc91b78dffe 100644
--- a/drivers/staging/iio/frequency/ad9832.c
+++ b/drivers/staging/iio/frequency/ad9832.c
@@ -214,14 +214,14 @@ static int ad9832_probe(struct spi_device *spi)
 		return -ENODEV;
 	}
 
-	reg = regulator_get(&spi->dev, "vcc");
+	reg = devm_regulator_get(&spi->dev, "vcc");
 	if (!IS_ERR(reg)) {
 		ret = regulator_enable(reg);
 		if (ret)
-			goto error_put_reg;
+			return ret;
 	}
 
-	indio_dev = iio_device_alloc(sizeof(*st));
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
 	if (indio_dev == NULL) {
 		ret = -ENOMEM;
 		goto error_disable_reg;
@@ -279,47 +279,42 @@ static int ad9832_probe(struct spi_device *spi)
 	ret = spi_sync(st->spi, &st->msg);
 	if (ret) {
 		dev_err(&spi->dev, "device init failed\n");
-		goto error_free_device;
+		goto error_disable_reg;
 	}
 
 	ret = ad9832_write_frequency(st, AD9832_FREQ0HM, pdata->freq0);
 	if (ret)
-		goto error_free_device;
+		goto error_disable_reg;
 
 	ret = ad9832_write_frequency(st, AD9832_FREQ1HM, pdata->freq1);
 	if (ret)
-		goto error_free_device;
+		goto error_disable_reg;
 
 	ret = ad9832_write_phase(st, AD9832_PHASE0H, pdata->phase0);
 	if (ret)
-		goto error_free_device;
+		goto error_disable_reg;
 
 	ret = ad9832_write_phase(st, AD9832_PHASE1H, pdata->phase1);
 	if (ret)
-		goto error_free_device;
+		goto error_disable_reg;
 
 	ret = ad9832_write_phase(st, AD9832_PHASE2H, pdata->phase2);
 	if (ret)
-		goto error_free_device;
+		goto error_disable_reg;
 
 	ret = ad9832_write_phase(st, AD9832_PHASE3H, pdata->phase3);
 	if (ret)
-		goto error_free_device;
+		goto error_disable_reg;
 
 	ret = iio_device_register(indio_dev);
 	if (ret)
-		goto error_free_device;
+		goto error_disable_reg;
 
 	return 0;
 
-error_free_device:
-	iio_device_free(indio_dev);
 error_disable_reg:
 	if (!IS_ERR(reg))
 		regulator_disable(reg);
-error_put_reg:
-	if (!IS_ERR(reg))
-		regulator_put(reg);
 
 	return ret;
 }
@@ -330,11 +325,8 @@ static int ad9832_remove(struct spi_device *spi)
 	struct ad9832_state *st = iio_priv(indio_dev);
 
 	iio_device_unregister(indio_dev);
-	if (!IS_ERR(st->reg)) {
+	if (!IS_ERR(st->reg))
 		regulator_disable(st->reg);
-		regulator_put(st->reg);
-	}
-	iio_device_free(indio_dev);
 
 	return 0;
 }
-- 
cgit 


From e3a27cc448acb4ddf66854d57b91190e8725909c Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 5 Sep 2013 10:29:00 +0100
Subject: staging: iio: ad9834: Use devm_* APIs

devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/frequency/ad9834.c | 29 +++++++++++------------------
 1 file changed, 11 insertions(+), 18 deletions(-)

diff --git a/drivers/staging/iio/frequency/ad9834.c b/drivers/staging/iio/frequency/ad9834.c
index 5cba3c01f417..2562b22c6a82 100644
--- a/drivers/staging/iio/frequency/ad9834.c
+++ b/drivers/staging/iio/frequency/ad9834.c
@@ -327,14 +327,14 @@ static int ad9834_probe(struct spi_device *spi)
 		return -ENODEV;
 	}
 
-	reg = regulator_get(&spi->dev, "vcc");
+	reg = devm_regulator_get(&spi->dev, "vcc");
 	if (!IS_ERR(reg)) {
 		ret = regulator_enable(reg);
 		if (ret)
-			goto error_put_reg;
+			return ret;
 	}
 
-	indio_dev = iio_device_alloc(sizeof(*st));
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
 	if (indio_dev == NULL) {
 		ret = -ENOMEM;
 		goto error_disable_reg;
@@ -388,39 +388,35 @@ static int ad9834_probe(struct spi_device *spi)
 	ret = spi_sync(st->spi, &st->msg);
 	if (ret) {
 		dev_err(&spi->dev, "device init failed\n");
-		goto error_free_device;
+		goto error_disable_reg;
 	}
 
 	ret = ad9834_write_frequency(st, AD9834_REG_FREQ0, pdata->freq0);
 	if (ret)
-		goto error_free_device;
+		goto error_disable_reg;
 
 	ret = ad9834_write_frequency(st, AD9834_REG_FREQ1, pdata->freq1);
 	if (ret)
-		goto error_free_device;
+		goto error_disable_reg;
 
 	ret = ad9834_write_phase(st, AD9834_REG_PHASE0, pdata->phase0);
 	if (ret)
-		goto error_free_device;
+		goto error_disable_reg;
 
 	ret = ad9834_write_phase(st, AD9834_REG_PHASE1, pdata->phase1);
 	if (ret)
-		goto error_free_device;
+		goto error_disable_reg;
 
 	ret = iio_device_register(indio_dev);
 	if (ret)
-		goto error_free_device;
+		goto error_disable_reg;
 
 	return 0;
 
-error_free_device:
-	iio_device_free(indio_dev);
 error_disable_reg:
 	if (!IS_ERR(reg))
 		regulator_disable(reg);
-error_put_reg:
-	if (!IS_ERR(reg))
-		regulator_put(reg);
+
 	return ret;
 }
 
@@ -430,11 +426,8 @@ static int ad9834_remove(struct spi_device *spi)
 	struct ad9834_state *st = iio_priv(indio_dev);
 
 	iio_device_unregister(indio_dev);
-	if (!IS_ERR(st->reg)) {
+	if (!IS_ERR(st->reg))
 		regulator_disable(st->reg);
-		regulator_put(st->reg);
-	}
-	iio_device_free(indio_dev);
 
 	return 0;
 }
-- 
cgit 


From f8e405d93d8a62d90e75b09ddaa600eb968ff783 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 5 Sep 2013 10:29:00 +0100
Subject: staging: iio: ad9850: Use devm_iio_device_alloc

devm_iio_device_alloc makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/frequency/ad9850.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/iio/frequency/ad9850.c b/drivers/staging/iio/frequency/ad9850.c
index 01a8a93031f5..af877ff680e9 100644
--- a/drivers/staging/iio/frequency/ad9850.c
+++ b/drivers/staging/iio/frequency/ad9850.c
@@ -80,11 +80,9 @@ static int ad9850_probe(struct spi_device *spi)
 	struct iio_dev *idev;
 	int ret = 0;
 
-	idev = iio_device_alloc(sizeof(*st));
-	if (idev == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
+	idev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+	if (!idev)
+		return -ENOMEM;
 	spi_set_drvdata(spi, idev);
 	st = iio_priv(idev);
 	mutex_init(&st->lock);
@@ -96,24 +94,18 @@ static int ad9850_probe(struct spi_device *spi)
 
 	ret = iio_device_register(idev);
 	if (ret)
-		goto error_free_dev;
+		return ret;
 	spi->max_speed_hz = 2000000;
 	spi->mode = SPI_MODE_3;
 	spi->bits_per_word = 16;
 	spi_setup(spi);
 
 	return 0;
-
-error_free_dev:
-	iio_device_free(idev);
-error_ret:
-	return ret;
 }
 
 static int ad9850_remove(struct spi_device *spi)
 {
 	iio_device_unregister(spi_get_drvdata(spi));
-	iio_device_free(spi_get_drvdata(spi));
 
 	return 0;
 }
-- 
cgit 


From 98d8abd690350309b70c7839b775d41a69cdbdc4 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 5 Sep 2013 10:29:00 +0100
Subject: staging: iio: ad9852: Use devm_iio_device_alloc

devm_iio_device_alloc makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/frequency/ad9852.c | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/iio/frequency/ad9852.c b/drivers/staging/iio/frequency/ad9852.c
index 1344031232bc..4be2cf8c2ab6 100644
--- a/drivers/staging/iio/frequency/ad9852.c
+++ b/drivers/staging/iio/frequency/ad9852.c
@@ -229,11 +229,9 @@ static int ad9852_probe(struct spi_device *spi)
 	struct iio_dev *idev;
 	int ret = 0;
 
-	idev = iio_device_alloc(sizeof(*st));
-	if (idev == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
+	idev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+	if (!idev)
+		return -ENOMEM;
 	st = iio_priv(idev);
 	spi_set_drvdata(spi, idev);
 	mutex_init(&st->lock);
@@ -245,7 +243,7 @@ static int ad9852_probe(struct spi_device *spi)
 
 	ret = iio_device_register(idev);
 	if (ret)
-		goto error_free_dev;
+		return ret;
 	spi->max_speed_hz = 2000000;
 	spi->mode = SPI_MODE_3;
 	spi->bits_per_word = 8;
@@ -253,18 +251,11 @@ static int ad9852_probe(struct spi_device *spi)
 	ad9852_init(st);
 
 	return 0;
-
-error_free_dev:
-	iio_device_free(idev);
-
-error_ret:
-	return ret;
 }
 
 static int ad9852_remove(struct spi_device *spi)
 {
 	iio_device_unregister(spi_get_drvdata(spi));
-	iio_device_free(spi_get_drvdata(spi));
 
 	return 0;
 }
-- 
cgit 


From d63519e3cf203d04f73eb7ae8eb466882543796e Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 5 Sep 2013 10:29:00 +0100
Subject: staging: iio: ad9910: Use devm_iio_device_alloc

devm_iio_device_alloc makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/frequency/ad9910.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/iio/frequency/ad9910.c b/drivers/staging/iio/frequency/ad9910.c
index e48f874c1fc2..a7d528ef620c 100644
--- a/drivers/staging/iio/frequency/ad9910.c
+++ b/drivers/staging/iio/frequency/ad9910.c
@@ -367,11 +367,9 @@ static int ad9910_probe(struct spi_device *spi)
 	struct iio_dev *idev;
 	int ret = 0;
 
-	idev = iio_device_alloc(sizeof(*st));
-	if (idev == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
+	idev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+	if (!idev)
+		return -ENOMEM;
 	spi_set_drvdata(spi, idev);
 	st = iio_priv(idev);
 	mutex_init(&st->lock);
@@ -383,24 +381,18 @@ static int ad9910_probe(struct spi_device *spi)
 
 	ret = iio_device_register(idev);
 	if (ret)
-		goto error_free_dev;
+		return ret;
 	spi->max_speed_hz = 2000000;
 	spi->mode = SPI_MODE_3;
 	spi->bits_per_word = 8;
 	spi_setup(spi);
 	ad9910_init(st);
 	return 0;
-
-error_free_dev:
-	iio_device_free(idev);
-error_ret:
-	return ret;
 }
 
 static int ad9910_remove(struct spi_device *spi)
 {
 	iio_device_unregister(spi_get_drvdata(spi));
-	iio_device_free(spi_get_drvdata(spi));
 
 	return 0;
 }
-- 
cgit 


From 177e4af04e5e11aee18e794359997cc301fa9f0f Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 5 Sep 2013 10:29:00 +0100
Subject: staging: iio: ad9951: Use devm_iio_device_alloc

devm_iio_device_alloc makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/frequency/ad9951.c | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/iio/frequency/ad9951.c b/drivers/staging/iio/frequency/ad9951.c
index 8234e3c915c4..0094c2f392ad 100644
--- a/drivers/staging/iio/frequency/ad9951.c
+++ b/drivers/staging/iio/frequency/ad9951.c
@@ -176,11 +176,9 @@ static int ad9951_probe(struct spi_device *spi)
 	struct iio_dev *idev;
 	int ret = 0;
 
-	idev = iio_device_alloc(sizeof(*st));
-	if (idev == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
+	idev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+	if (!idev)
+		return -ENOMEM;
 	spi_set_drvdata(spi, idev);
 	st = iio_priv(idev);
 	mutex_init(&st->lock);
@@ -193,25 +191,18 @@ static int ad9951_probe(struct spi_device *spi)
 
 	ret = iio_device_register(idev);
 	if (ret)
-		goto error_free_dev;
+		return ret;
 	spi->max_speed_hz = 2000000;
 	spi->mode = SPI_MODE_3;
 	spi->bits_per_word = 8;
 	spi_setup(spi);
 	ad9951_init(st);
 	return 0;
-
-error_free_dev:
-	iio_device_free(idev);
-
-error_ret:
-	return ret;
 }
 
 static int ad9951_remove(struct spi_device *spi)
 {
 	iio_device_unregister(spi_get_drvdata(spi));
-	iio_device_free(spi_get_drvdata(spi));
 
 	return 0;
 }
-- 
cgit 


From 8529e6673b162dcc9146238073f8632d604f8d5a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 5 Sep 2013 10:29:00 +0100
Subject: staging: iio: tsl2x7x_core: Use devm_* APIs

devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: J. August Brenner <jbrenner@taosinc.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/light/tsl2x7x_core.c | 38 +++++++++++---------------------
 1 file changed, 13 insertions(+), 25 deletions(-)

diff --git a/drivers/staging/iio/light/tsl2x7x_core.c b/drivers/staging/iio/light/tsl2x7x_core.c
index c99f890cc6c6..aa867258516f 100644
--- a/drivers/staging/iio/light/tsl2x7x_core.c
+++ b/drivers/staging/iio/light/tsl2x7x_core.c
@@ -1851,7 +1851,7 @@ static int tsl2x7x_probe(struct i2c_client *clientp,
 	struct iio_dev *indio_dev;
 	struct tsl2X7X_chip *chip;
 
-	indio_dev = iio_device_alloc(sizeof(*chip));
+	indio_dev = devm_iio_device_alloc(&clientp->dev, sizeof(*chip));
 	if (!indio_dev)
 		return -ENOMEM;
 
@@ -1862,22 +1862,21 @@ static int tsl2x7x_probe(struct i2c_client *clientp,
 	ret = tsl2x7x_i2c_read(chip->client,
 		TSL2X7X_CHIPID, &device_id);
 	if (ret < 0)
-		goto fail1;
+		return ret;
 
 	if ((!tsl2x7x_device_id(&device_id, id->driver_data)) ||
 		(tsl2x7x_device_id(&device_id, id->driver_data) == -EINVAL)) {
 		dev_info(&chip->client->dev,
 				"%s: i2c device found does not match expected id\n",
 				__func__);
-		ret = -EINVAL;
-		goto fail1;
+		return -EINVAL;
 	}
 
 	ret = i2c_smbus_write_byte(clientp, (TSL2X7X_CMD_REG | TSL2X7X_CNTRL));
 	if (ret < 0) {
 		dev_err(&clientp->dev, "%s: write to cmd reg failed. err = %d\n",
 				__func__, ret);
-		goto fail1;
+		return ret;
 	}
 
 	/* ALS and PROX functions can be invoked via user space poll
@@ -1899,16 +1898,17 @@ static int tsl2x7x_probe(struct i2c_client *clientp,
 	indio_dev->num_channels = chip->chip_info->chan_table_elements;
 
 	if (clientp->irq) {
-		ret = request_threaded_irq(clientp->irq,
-					   NULL,
-					   &tsl2x7x_event_handler,
-					   IRQF_TRIGGER_RISING | IRQF_ONESHOT,
-					   "TSL2X7X_event",
-					   indio_dev);
+		ret = devm_request_threaded_irq(&clientp->dev, clientp->irq,
+						NULL,
+						&tsl2x7x_event_handler,
+						IRQF_TRIGGER_RISING |
+						IRQF_ONESHOT,
+						"TSL2X7X_event",
+						indio_dev);
 		if (ret) {
 			dev_err(&clientp->dev,
 				"%s: irq request failed", __func__);
-			goto fail1;
+			return ret;
 		}
 	}
 
@@ -1921,20 +1921,12 @@ static int tsl2x7x_probe(struct i2c_client *clientp,
 	if (ret) {
 		dev_err(&clientp->dev,
 			"%s: iio registration failed\n", __func__);
-		goto fail2;
+		return ret;
 	}
 
 	dev_info(&clientp->dev, "%s Light sensor found.\n", id->name);
 
 	return 0;
-
-fail2:
-	if (clientp->irq)
-		free_irq(clientp->irq, indio_dev);
-fail1:
-	iio_device_free(indio_dev);
-
-	return ret;
 }
 
 static int tsl2x7x_suspend(struct device *dev)
@@ -1980,10 +1972,6 @@ static int tsl2x7x_remove(struct i2c_client *client)
 	tsl2x7x_chip_off(indio_dev);
 
 	iio_device_unregister(indio_dev);
-	if (client->irq)
-		free_irq(client->irq, indio_dev);
-
-	iio_device_free(indio_dev);
 
 	return 0;
 }
-- 
cgit 


From 46e221cb395fd6a59d6e5b84dde0ec82aefe78f7 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 5 Sep 2013 10:29:00 +0100
Subject: staging: iio: tsl2x7x_core: Fix sparse warning

Silences the following warning:
drivers/staging/iio/light/tsl2x7x_core.c:553:70:
warning: Using plain integer as NULL pointer

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: J. August Brenner <jbrenner@taosinc.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/light/tsl2x7x_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/iio/light/tsl2x7x_core.c b/drivers/staging/iio/light/tsl2x7x_core.c
index aa867258516f..3439d378efbf 100644
--- a/drivers/staging/iio/light/tsl2x7x_core.c
+++ b/drivers/staging/iio/light/tsl2x7x_core.c
@@ -550,7 +550,7 @@ prox_poll_err:
 static void tsl2x7x_defaults(struct tsl2X7X_chip *chip)
 {
 	/* If Operational settings defined elsewhere.. */
-	if (chip->pdata && chip->pdata->platform_default_settings != 0)
+	if (chip->pdata && chip->pdata->platform_default_settings)
 		memcpy(&(chip->tsl2x7x_settings),
 			chip->pdata->platform_default_settings,
 			sizeof(tsl2x7x_default_settings));
-- 
cgit 


From b658a377cce345e709184b5225e796672f8cf07c Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 5 Sep 2013 10:29:00 +0100
Subject: staging: iio: hmc5843: Fix a trivial typo

Add a missing closing brace.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Shubhrajyoti Datta <shubhrajyoti@ti.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/magnetometer/hmc5843.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index d2748c329eae..67c1ce76362b 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -730,6 +730,6 @@ static struct i2c_driver hmc5843_driver = {
 };
 module_i2c_driver(hmc5843_driver);
 
-MODULE_AUTHOR("Shubhrajyoti Datta <shubhrajyoti@ti.com");
+MODULE_AUTHOR("Shubhrajyoti Datta <shubhrajyoti@ti.com>");
 MODULE_DESCRIPTION("HMC5843/5883/5883L driver");
 MODULE_LICENSE("GPL");
-- 
cgit 


From 07914c84ba30e311f6bfb65b811b33a1dc094311 Mon Sep 17 00:00:00 2001
From: Angelo Compagnucci <angelo.compagnucci@gmail.com>
Date: Mon, 2 Sep 2013 15:00:00 +0100
Subject: iio: adc: Add driver for Microchip MCP3422/3/4 high resolution ADC

Sysfs access to all channels.

Signed-off-by: Angelo Compagnucci <angelo.compagnucci@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/Kconfig   |  10 ++
 drivers/iio/adc/Makefile  |   1 +
 drivers/iio/adc/mcp3422.c | 409 ++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 420 insertions(+)
 create mode 100644 drivers/iio/adc/mcp3422.c

diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 09371cbc9dc1..0cf5c611b4c6 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -145,6 +145,16 @@ config MCP320X
 	  This driver can also be built as a module. If so, the module will be
 	  called mcp320x.
 
+config MCP3422
+	tristate "Microchip Technology MCP3422/3/4 driver"
+	depends on I2C
+	help
+	  Say yes here to build support for Microchip Technology's MCP3422,
+	  MCP3423 or MCP3424 analog to digital converters.
+
+	  This driver can also be built as a module. If so, the module will be
+	  called mcp3422.
+
 config NAU7802
 	tristate "Nuvoton NAU7802 ADC driver"
 	depends on I2C
diff --git a/drivers/iio/adc/Makefile b/drivers/iio/adc/Makefile
index 33656ef7d1f6..ba9a10a24cd0 100644
--- a/drivers/iio/adc/Makefile
+++ b/drivers/iio/adc/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_EXYNOS_ADC) += exynos_adc.o
 obj-$(CONFIG_LP8788_ADC) += lp8788_adc.o
 obj-$(CONFIG_MAX1363) += max1363.o
 obj-$(CONFIG_MCP320X) += mcp320x.o
+obj-$(CONFIG_MCP3422) += mcp3422.o
 obj-$(CONFIG_NAU7802) += nau7802.o
 obj-$(CONFIG_TI_ADC081C) += ti-adc081c.o
 obj-$(CONFIG_TI_AM335X_ADC) += ti_am335x_adc.o
diff --git a/drivers/iio/adc/mcp3422.c b/drivers/iio/adc/mcp3422.c
new file mode 100644
index 000000000000..bc93f538cb13
--- /dev/null
+++ b/drivers/iio/adc/mcp3422.c
@@ -0,0 +1,409 @@
+/*
+ * mcp3422.c - driver for the Microchip mcp3422/3/4 chip family
+ *
+ * Copyright (C) 2013, Angelo Compagnucci
+ * Author: Angelo Compagnucci <angelo.compagnucci@gmail.com>
+ *
+ * Datasheet: http://ww1.microchip.com/downloads/en/devicedoc/22088b.pdf
+ *
+ * This driver exports the value of analog input voltage to sysfs, the
+ * voltage unit is nV.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/sysfs.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+
+/* Masks */
+#define MCP3422_CHANNEL_MASK	0x60
+#define MCP3422_PGA_MASK	0x03
+#define MCP3422_SRATE_MASK	0x0C
+#define MCP3422_SRATE_240	0x0
+#define MCP3422_SRATE_60	0x1
+#define MCP3422_SRATE_15	0x2
+#define MCP3422_SRATE_3	0x3
+#define MCP3422_PGA_1	0
+#define MCP3422_PGA_2	1
+#define MCP3422_PGA_4	2
+#define MCP3422_PGA_8	3
+#define MCP3422_CONT_SAMPLING	0x10
+
+#define MCP3422_CHANNEL(config)	(((config) & MCP3422_CHANNEL_MASK) >> 5)
+#define MCP3422_PGA(config)	((config) & MCP3422_PGA_MASK)
+#define MCP3422_SAMPLE_RATE(config)	(((config) & MCP3422_SRATE_MASK) >> 2)
+
+#define MCP3422_CHANNEL_VALUE(value) (((value) << 5) & MCP3422_CHANNEL_MASK)
+#define MCP3422_PGA_VALUE(value) ((value) & MCP3422_PGA_MASK)
+#define MCP3422_SAMPLE_RATE_VALUE(value) ((value << 2) & MCP3422_SRATE_MASK)
+
+#define MCP3422_CHAN(_index) \
+	{ \
+		.type = IIO_VOLTAGE, \
+		.indexed = 1, \
+		.channel = _index, \
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) \
+				| BIT(IIO_CHAN_INFO_SCALE), \
+		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SAMP_FREQ), \
+	}
+
+/* LSB is in nV to eliminate floating point */
+static const u32 rates_to_lsb[] = {1000000, 250000, 62500, 15625};
+
+/*
+ *  scales calculated as:
+ *  rates_to_lsb[sample_rate] / (1 << pga);
+ *  pga is 1 for 0, 2
+ */
+
+static const int mcp3422_scales[4][4] = {
+	{ 1000000, 250000, 62500, 15625 },
+	{ 500000 , 125000, 31250, 7812 },
+	{ 250000 , 62500 , 15625, 3906 },
+	{ 125000 , 31250 , 7812 , 1953 } };
+
+/* Constant msleep times for data acquisitions */
+static const int mcp3422_read_times[4] = {
+	[MCP3422_SRATE_240] = 1000 / 240,
+	[MCP3422_SRATE_60] = 1000 / 60,
+	[MCP3422_SRATE_15] = 1000 / 15,
+	[MCP3422_SRATE_3] = 1000 / 3 };
+
+/* sample rates to integer conversion table */
+static const int mcp3422_sample_rates[4] = {
+	[MCP3422_SRATE_240] = 240,
+	[MCP3422_SRATE_60] = 60,
+	[MCP3422_SRATE_15] = 15,
+	[MCP3422_SRATE_3] = 3 };
+
+/* sample rates to sign extension table */
+static const int mcp3422_sign_extend[4] = {
+	[MCP3422_SRATE_240] = 12,
+	[MCP3422_SRATE_60] = 14,
+	[MCP3422_SRATE_15] = 16,
+	[MCP3422_SRATE_3] = 18 };
+
+/* Client data (each client gets its own) */
+struct mcp3422 {
+	struct i2c_client *i2c;
+	u8 config;
+	u8 pga[4];
+	struct mutex lock;
+};
+
+static int mcp3422_update_config(struct mcp3422 *adc, u8 newconfig)
+{
+	int ret;
+
+	mutex_lock(&adc->lock);
+
+	ret = i2c_master_send(adc->i2c, &newconfig, 1);
+	if (ret > 0) {
+		adc->config = newconfig;
+		ret = 0;
+	}
+
+	mutex_unlock(&adc->lock);
+
+	return ret;
+}
+
+static int mcp3422_read(struct mcp3422 *adc, int *value, u8 *config)
+{
+	int ret = 0;
+	u8 sample_rate = MCP3422_SAMPLE_RATE(adc->config);
+	u8 buf[4] = {0, 0, 0, 0};
+	u32 temp;
+
+	if (sample_rate == MCP3422_SRATE_3) {
+		ret = i2c_master_recv(adc->i2c, buf, 4);
+		temp = buf[0] << 16 | buf[1] << 8 | buf[2];
+		*config = buf[3];
+	} else {
+		ret = i2c_master_recv(adc->i2c, buf, 3);
+		temp = buf[0] << 8 | buf[1];
+		*config = buf[2];
+	}
+
+	*value = sign_extend32(temp, mcp3422_sign_extend[sample_rate]);
+
+	return ret;
+}
+
+static int mcp3422_read_channel(struct mcp3422 *adc,
+				struct iio_chan_spec const *channel, int *value)
+{
+	int ret;
+	u8 config;
+	u8 req_channel = channel->channel;
+
+	if (req_channel != MCP3422_CHANNEL(adc->config)) {
+		config = adc->config;
+		config &= ~MCP3422_CHANNEL_MASK;
+		config |= MCP3422_CHANNEL_VALUE(req_channel);
+		config &= ~MCP3422_PGA_MASK;
+		config |= MCP3422_PGA_VALUE(adc->pga[req_channel]);
+		ret = mcp3422_update_config(adc, config);
+		if (ret < 0)
+			return ret;
+		msleep(mcp3422_read_times[MCP3422_SAMPLE_RATE(adc->config)]);
+	}
+
+	return mcp3422_read(adc, value, &config);
+}
+
+static int mcp3422_read_raw(struct iio_dev *iio,
+			struct iio_chan_spec const *channel, int *val1,
+			int *val2, long mask)
+{
+	struct mcp3422 *adc = iio_priv(iio);
+	int err;
+
+	u8 sample_rate = MCP3422_SAMPLE_RATE(adc->config);
+	u8 pga		 = MCP3422_PGA(adc->config);
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		err = mcp3422_read_channel(adc, channel, val1);
+		if (err < 0)
+			return -EINVAL;
+		return IIO_VAL_INT;
+
+	case IIO_CHAN_INFO_SCALE:
+
+		*val1 = 0;
+		*val2 = mcp3422_scales[sample_rate][pga];
+		return IIO_VAL_INT_PLUS_NANO;
+
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		*val1 = mcp3422_sample_rates[MCP3422_SAMPLE_RATE(adc->config)];
+		return IIO_VAL_INT;
+
+	default:
+		break;
+	}
+
+	return -EINVAL;
+}
+
+static int mcp3422_write_raw(struct iio_dev *iio,
+			struct iio_chan_spec const *channel, int val1,
+			int val2, long mask)
+{
+	struct mcp3422 *adc = iio_priv(iio);
+	u8 temp;
+	u8 config = adc->config;
+	u8 req_channel = channel->channel;
+	u8 sample_rate = MCP3422_SAMPLE_RATE(config);
+	u8 i;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_SCALE:
+		if (val1 != 0)
+			return -EINVAL;
+
+		for (i = 0; i < ARRAY_SIZE(mcp3422_scales[0]); i++) {
+			if (val2 == mcp3422_scales[sample_rate][i]) {
+				adc->pga[req_channel] = i;
+
+				config &= ~MCP3422_CHANNEL_MASK;
+				config |= MCP3422_CHANNEL_VALUE(req_channel);
+				config &= ~MCP3422_PGA_MASK;
+				config |= MCP3422_PGA_VALUE(adc->pga[req_channel]);
+
+				return mcp3422_update_config(adc, config);
+			}
+		}
+		return -EINVAL;
+
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		switch (val1) {
+		case 240:
+			temp = MCP3422_SRATE_240;
+			break;
+		case 60:
+			temp = MCP3422_SRATE_60;
+			break;
+		case 15:
+			temp = MCP3422_SRATE_15;
+			break;
+		case 3:
+			temp = MCP3422_SRATE_3;
+			break;
+		default:
+			return -EINVAL;
+		}
+
+		config &= ~MCP3422_CHANNEL_MASK;
+		config |= MCP3422_CHANNEL_VALUE(req_channel);
+		config &= ~MCP3422_SRATE_MASK;
+		config |= MCP3422_SAMPLE_RATE_VALUE(temp);
+
+		return mcp3422_update_config(adc, config);
+
+	default:
+		break;
+	}
+
+	return -EINVAL;
+}
+
+static int mcp3422_write_raw_get_fmt(struct iio_dev *indio_dev,
+		struct iio_chan_spec const *chan, long mask)
+{
+	switch (mask) {
+	case IIO_CHAN_INFO_SCALE:
+		return IIO_VAL_INT_PLUS_NANO;
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		return IIO_VAL_INT_PLUS_MICRO;
+	default:
+		return -EINVAL;
+	}
+}
+
+static ssize_t mcp3422_show_scales(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct mcp3422 *adc = iio_priv(dev_to_iio_dev(dev));
+	u8 sample_rate = MCP3422_SAMPLE_RATE(adc->config);
+
+	return sprintf(buf, "0.%09u 0.%09u 0.%09u 0.%09u\n",
+		mcp3422_scales[sample_rate][0],
+		mcp3422_scales[sample_rate][1],
+		mcp3422_scales[sample_rate][2],
+		mcp3422_scales[sample_rate][3]);
+}
+
+static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("240 60 15 3");
+static IIO_DEVICE_ATTR(in_voltage_scale_available, S_IRUGO,
+		mcp3422_show_scales, NULL, 0);
+
+static struct attribute *mcp3422_attributes[] = {
+	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
+	&iio_dev_attr_in_voltage_scale_available.dev_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group mcp3422_attribute_group = {
+	.attrs = mcp3422_attributes,
+};
+
+static const struct iio_chan_spec mcp3422_channels[] = {
+	MCP3422_CHAN(0),
+	MCP3422_CHAN(1),
+};
+
+static const struct iio_chan_spec mcp3424_channels[] = {
+	MCP3422_CHAN(0),
+	MCP3422_CHAN(1),
+	MCP3422_CHAN(2),
+	MCP3422_CHAN(3),
+};
+
+static const struct iio_info mcp3422_info = {
+	.read_raw = mcp3422_read_raw,
+	.write_raw = mcp3422_write_raw,
+	.write_raw_get_fmt = mcp3422_write_raw_get_fmt,
+	.attrs = &mcp3422_attribute_group,
+	.driver_module = THIS_MODULE,
+};
+
+static int mcp3422_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct iio_dev *indio_dev;
+	struct mcp3422 *adc;
+	int err;
+	u8 config;
+
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
+		return -ENODEV;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*adc));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	adc = iio_priv(indio_dev);
+	adc->i2c = client;
+
+	mutex_init(&adc->lock);
+
+	indio_dev->dev.parent = &client->dev;
+	indio_dev->name = dev_name(&client->dev);
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->info = &mcp3422_info;
+
+	switch ((unsigned int)(id->driver_data)) {
+	case 2:
+	case 3:
+		indio_dev->channels = mcp3422_channels;
+		indio_dev->num_channels = ARRAY_SIZE(mcp3422_channels);
+		break;
+	case 4:
+		indio_dev->channels = mcp3424_channels;
+		indio_dev->num_channels = ARRAY_SIZE(mcp3424_channels);
+		break;
+	}
+
+	/* meaningful default configuration */
+	config = (MCP3422_CONT_SAMPLING
+		| MCP3422_CHANNEL_VALUE(1)
+		| MCP3422_PGA_VALUE(MCP3422_PGA_1)
+		| MCP3422_SAMPLE_RATE_VALUE(MCP3422_SRATE_240));
+	mcp3422_update_config(adc, config);
+
+	err = iio_device_register(indio_dev);
+	if (err < 0)
+		return err;
+
+	i2c_set_clientdata(client, indio_dev);
+
+	return 0;
+}
+
+static int mcp3422_remove(struct i2c_client *client)
+{
+	iio_device_unregister(i2c_get_clientdata(client));
+	return 0;
+}
+
+static const struct i2c_device_id mcp3422_id[] = {
+	{ "mcp3422", 2 },
+	{ "mcp3423", 3 },
+	{ "mcp3424", 4 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, mcp3422_id);
+
+#ifdef CONFIG_OF
+static const struct of_device_id mcp3422_of_match[] = {
+	{ .compatible = "mcp3422" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, mcp3422_of_match);
+#endif
+
+static struct i2c_driver mcp3422_driver = {
+	.driver = {
+		.name = "mcp3422",
+		.owner = THIS_MODULE,
+		.of_match_table = of_match_ptr(mcp3422_of_match),
+	},
+	.probe = mcp3422_probe,
+	.remove = mcp3422_remove,
+	.id_table = mcp3422_id,
+};
+module_i2c_driver(mcp3422_driver);
+
+MODULE_AUTHOR("Angelo Compagnucci <angelo.compagnucci@gmail.com>");
+MODULE_DESCRIPTION("Microchip mcp3422/3/4 driver");
+MODULE_LICENSE("GPL v2");
-- 
cgit 


From e5e26dd5bb740c34c975e2ae059126ba3486a1ce Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 20 Aug 2013 03:31:00 +0100
Subject: staging: iio: replace strict_strto*() with kstrto*()

The usage of strict_strto*() is not preferred, because
strict_strto*() is obsolete. Thus, kstrto*() should be
used.

Previously, there were only strict_strtol(), strict_strtoul(),
strict_strtoull(), and strict_strtoll(). Thus, when converting
to the variables, only long, unsigned long, unsigned long long,
and long long can be used.

However, kstrto*() provides various functions handling all types
of variables. Therefore, the types of variables can be changed
properly.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/accel/sca3000_core.c           |  8 ++---
 drivers/staging/iio/accel/sca3000_ring.c           |  4 +--
 drivers/staging/iio/addac/adt7316.c                | 38 +++++++++++-----------
 drivers/staging/iio/frequency/ad9832.c             |  4 +--
 drivers/staging/iio/frequency/ad9834.c             |  4 +--
 drivers/staging/iio/impedance-analyzer/ad5933.c    | 12 +++----
 drivers/staging/iio/light/isl29018.c               | 18 +++++-----
 drivers/staging/iio/light/tsl2583.c                | 24 +++++++-------
 drivers/staging/iio/meter/ade7753.c                | 12 +++----
 drivers/staging/iio/meter/ade7754.c                | 12 +++----
 drivers/staging/iio/meter/ade7758_core.c           | 12 +++----
 drivers/staging/iio/meter/ade7759.c                | 12 +++----
 drivers/staging/iio/meter/ade7854.c                | 16 ++++-----
 drivers/staging/iio/resolver/ad2s1210.c            | 20 ++++++------
 drivers/staging/iio/trigger/iio-trig-bfin-timer.c  | 23 +++++--------
 .../staging/iio/trigger/iio-trig-periodic-rtc.c    |  4 +--
 16 files changed, 109 insertions(+), 114 deletions(-)

diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c
index 48a25ba290f5..6a9ca20ea22d 100644
--- a/drivers/staging/iio/accel/sca3000_core.c
+++ b/drivers/staging/iio/accel/sca3000_core.c
@@ -624,9 +624,9 @@ static ssize_t sca3000_set_frequency(struct device *dev,
 	struct sca3000_state *st = iio_priv(indio_dev);
 	int ret, base_freq = 0;
 	int ctrlval;
-	long val;
+	int val;
 
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtoint(buf, 10, &val);
 	if (ret)
 		return ret;
 
@@ -931,12 +931,12 @@ static ssize_t sca3000_set_free_fall_mode(struct device *dev,
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct sca3000_state *st = iio_priv(indio_dev);
-	long val;
+	u8 val;
 	int ret;
 	u8 protect_mask = SCA3000_FREE_FALL_DETECT;
 
 	mutex_lock(&st->lock);
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtou8(buf, 10, &val);
 	if (ret)
 		goto error_ret;
 
diff --git a/drivers/staging/iio/accel/sca3000_ring.c b/drivers/staging/iio/accel/sca3000_ring.c
index 3e5e860aa38e..0f2ee3373d9a 100644
--- a/drivers/staging/iio/accel/sca3000_ring.c
+++ b/drivers/staging/iio/accel/sca3000_ring.c
@@ -177,11 +177,11 @@ static ssize_t sca3000_set_ring_int(struct device *dev,
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct sca3000_state *st = iio_priv(indio_dev);
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	long val;
+	u8 val;
 	int ret;
 
 	mutex_lock(&st->lock);
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtou8(buf, 10, &val);
 	if (ret)
 		goto error_ret;
 	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_INT_MASK, 1);
diff --git a/drivers/staging/iio/addac/adt7316.c b/drivers/staging/iio/addac/adt7316.c
index 514ddcc88dd1..80266e801d56 100644
--- a/drivers/staging/iio/addac/adt7316.c
+++ b/drivers/staging/iio/addac/adt7316.c
@@ -412,13 +412,13 @@ static ssize_t adt7316_store_ad_channel(struct device *dev,
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 	u8 config2;
-	unsigned long data = 0;
+	u8 data;
 	int ret;
 
 	if (!(chip->config2 & ADT7316_AD_SINGLE_CH_MODE))
 		return -EPERM;
 
-	ret = strict_strtoul(buf, 10, &data);
+	ret = kstrtou8(buf, 10, &data);
 	if (ret)
 		return -EINVAL;
 
@@ -823,10 +823,10 @@ static ssize_t adt7316_store_DAC_2Vref_ch_mask(struct device *dev,
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 	u8 dac_config;
-	unsigned long data = 0;
+	u8 data;
 	int ret;
 
-	ret = strict_strtoul(buf, 16, &data);
+	ret = kstrtou8(buf, 16, &data);
 	if (ret || data > ADT7316_DA_2VREF_CH_MASK)
 		return -EINVAL;
 
@@ -878,13 +878,13 @@ static ssize_t adt7316_store_DAC_update_mode(struct device *dev,
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 	u8 dac_config;
-	unsigned long data;
+	u8 data;
 	int ret;
 
 	if (!(chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA))
 		return -EPERM;
 
-	ret = strict_strtoul(buf, 10, &data);
+	ret = kstrtou8(buf, 10, &data);
 	if (ret || data > ADT7316_DA_EN_MODE_MASK)
 		return -EINVAL;
 
@@ -933,7 +933,7 @@ static ssize_t adt7316_store_update_DAC(struct device *dev,
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 	u8 ldac_config;
-	unsigned long data;
+	u8 data;
 	int ret;
 
 	if (chip->config3 & ADT7316_DA_EN_VIA_DAC_LDCA) {
@@ -941,7 +941,7 @@ static ssize_t adt7316_store_update_DAC(struct device *dev,
 			ADT7316_DA_EN_MODE_LDAC)
 			return -EPERM;
 
-		ret = strict_strtoul(buf, 16, &data);
+		ret = kstrtou8(buf, 16, &data);
 		if (ret || data > ADT7316_LDAC_EN_DA_MASK)
 			return -EINVAL;
 
@@ -1079,11 +1079,11 @@ static ssize_t adt7316_store_DAC_internal_Vref(struct device *dev,
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
 	u8 ldac_config;
-	unsigned long data;
+	u8 data;
 	int ret;
 
 	if ((chip->id & ID_FAMILY_MASK) == ID_ADT75XX) {
-		ret = strict_strtoul(buf, 16, &data);
+		ret = kstrtou8(buf, 16, &data);
 		if (ret || data > 3)
 			return -EINVAL;
 
@@ -1093,7 +1093,7 @@ static ssize_t adt7316_store_DAC_internal_Vref(struct device *dev,
 		else if (data & 0x2)
 			ldac_config |= ADT7516_DAC_CD_IN_VREF;
 	} else {
-		ret = strict_strtoul(buf, 16, &data);
+		ret = kstrtou8(buf, 16, &data);
 		if (ret)
 			return -EINVAL;
 
@@ -1281,11 +1281,11 @@ static ssize_t adt7316_show_temp_offset(struct adt7316_chip_info *chip,
 static ssize_t adt7316_store_temp_offset(struct adt7316_chip_info *chip,
 		int offset_addr, const char *buf, size_t len)
 {
-	long data;
+	int data;
 	u8 val;
 	int ret;
 
-	ret = strict_strtol(buf, 10, &data);
+	ret = kstrtoint(buf, 10, &data);
 	if (ret || data > 127 || data < -128)
 		return -EINVAL;
 
@@ -1442,7 +1442,7 @@ static ssize_t adt7316_store_DAC(struct adt7316_chip_info *chip,
 		int channel, const char *buf, size_t len)
 {
 	u8 msb, lsb, offset;
-	unsigned long data;
+	u16 data;
 	int ret;
 
 	if (channel >= ADT7316_DA_MSB_DATA_REGS ||
@@ -1454,7 +1454,7 @@ static ssize_t adt7316_store_DAC(struct adt7316_chip_info *chip,
 
 	offset = chip->dac_bits - 8;
 
-	ret = strict_strtoul(buf, 10, &data);
+	ret = kstrtou16(buf, 10, &data);
 	if (ret || data >= (1 << chip->dac_bits))
 		return -EINVAL;
 
@@ -1830,11 +1830,11 @@ static ssize_t adt7316_set_int_mask(struct device *dev,
 {
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
-	unsigned long data;
+	u16 data;
 	int ret;
 	u8 mask;
 
-	ret = strict_strtoul(buf, 16, &data);
+	ret = kstrtou16(buf, 16, &data);
 	if (ret || data >= ADT7316_VDD_INT_MASK + 1)
 		return -EINVAL;
 
@@ -1901,7 +1901,7 @@ static inline ssize_t adt7316_set_ad_bound(struct device *dev,
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	struct iio_dev *dev_info = dev_to_iio_dev(dev);
 	struct adt7316_chip_info *chip = iio_priv(dev_info);
-	long data;
+	int data;
 	u8 val;
 	int ret;
 
@@ -1909,7 +1909,7 @@ static inline ssize_t adt7316_set_ad_bound(struct device *dev,
 		this_attr->address > ADT7316_EX_TEMP_LOW)
 		return -EPERM;
 
-	ret = strict_strtol(buf, 10, &data);
+	ret = kstrtoint(buf, 10, &data);
 	if (ret)
 		return -EINVAL;
 
diff --git a/drivers/staging/iio/frequency/ad9832.c b/drivers/staging/iio/frequency/ad9832.c
index adc91b78dffe..c7d0307c8e76 100644
--- a/drivers/staging/iio/frequency/ad9832.c
+++ b/drivers/staging/iio/frequency/ad9832.c
@@ -81,9 +81,9 @@ static ssize_t ad9832_write(struct device *dev,
 	struct ad9832_state *st = iio_priv(indio_dev);
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	int ret;
-	long val;
+	unsigned long val;
 
-	ret = strict_strtoul(buf, 10, &val);
+	ret = kstrtoul(buf, 10, &val);
 	if (ret)
 		goto error_ret;
 
diff --git a/drivers/staging/iio/frequency/ad9834.c b/drivers/staging/iio/frequency/ad9834.c
index 2562b22c6a82..86cda6176093 100644
--- a/drivers/staging/iio/frequency/ad9834.c
+++ b/drivers/staging/iio/frequency/ad9834.c
@@ -70,9 +70,9 @@ static ssize_t ad9834_write(struct device *dev,
 	struct ad9834_state *st = iio_priv(indio_dev);
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	int ret;
-	long val;
+	unsigned long val;
 
-	ret = strict_strtoul(buf, 10, &val);
+	ret = kstrtoul(buf, 10, &val);
 	if (ret)
 		goto error_ret;
 
diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c
index 23a0d7179303..00f70679a2bd 100644
--- a/drivers/staging/iio/impedance-analyzer/ad5933.c
+++ b/drivers/staging/iio/impedance-analyzer/ad5933.c
@@ -323,10 +323,10 @@ static ssize_t ad5933_store_frequency(struct device *dev,
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ad5933_state *st = iio_priv(indio_dev);
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	long val;
+	unsigned long val;
 	int ret;
 
-	ret = strict_strtoul(buf, 10, &val);
+	ret = kstrtoul(buf, 10, &val);
 	if (ret)
 		return ret;
 
@@ -400,12 +400,12 @@ static ssize_t ad5933_store(struct device *dev,
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ad5933_state *st = iio_priv(indio_dev);
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	long val;
+	u16 val;
 	int i, ret = 0;
 	unsigned short dat;
 
 	if (this_attr->address != AD5933_IN_PGA_GAIN) {
-		ret = strict_strtol(buf, 10, &val);
+		ret = kstrtou16(buf, 10, &val);
 		if (ret)
 			return ret;
 	}
@@ -434,7 +434,7 @@ static ssize_t ad5933_store(struct device *dev,
 		ret = ad5933_cmd(st, 0);
 		break;
 	case AD5933_OUT_SETTLING_CYCLES:
-		val = clamp(val, 0L, 0x7FFL);
+		val = clamp(val, (u16)0, (u16)0x7FF);
 		st->settling_cycles = val;
 
 		/* 2x, 4x handling, see datasheet */
@@ -448,7 +448,7 @@ static ssize_t ad5933_store(struct device *dev,
 				AD5933_REG_SETTLING_CYCLES, 2, (u8 *)&dat);
 		break;
 	case AD5933_FREQ_POINTS:
-		val = clamp(val, 0L, 511L);
+		val = clamp(val, (u16)0, (u16)511);
 		st->freq_points = val;
 
 		dat = cpu_to_be16(val);
diff --git a/drivers/staging/iio/light/isl29018.c b/drivers/staging/iio/light/isl29018.c
index 351936c3efd6..e314d7ee29dd 100644
--- a/drivers/staging/iio/light/isl29018.c
+++ b/drivers/staging/iio/light/isl29018.c
@@ -240,7 +240,7 @@ static ssize_t store_range(struct device *dev,
 	unsigned long lval;
 	unsigned int new_range;
 
-	if (strict_strtoul(buf, 10, &lval))
+	if (kstrtoul(buf, 10, &lval))
 		return -EINVAL;
 
 	if (!(lval == 1000UL || lval == 4000UL ||
@@ -279,18 +279,18 @@ static ssize_t store_resolution(struct device *dev,
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct isl29018_chip *chip = iio_priv(indio_dev);
 	int status;
-	unsigned long lval;
+	unsigned int val;
 	unsigned int new_adc_bit;
 
-	if (strict_strtoul(buf, 10, &lval))
+	if (kstrtouint(buf, 10, &val))
 		return -EINVAL;
-	if (!(lval == 4 || lval == 8 || lval == 12 || lval == 16)) {
+	if (!(val == 4 || val == 8 || val == 12 || val == 16)) {
 		dev_err(dev, "The resolution is not supported\n");
 		return -EINVAL;
 	}
 
 	mutex_lock(&chip->lock);
-	status = isl29018_set_resolution(chip, lval, &new_adc_bit);
+	status = isl29018_set_resolution(chip, val, &new_adc_bit);
 	if (status < 0) {
 		mutex_unlock(&chip->lock);
 		dev_err(dev, "Error in setting resolution\n");
@@ -319,11 +319,11 @@ static ssize_t store_prox_infrared_suppression(struct device *dev,
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct isl29018_chip *chip = iio_priv(indio_dev);
-	unsigned long lval;
+	int val;
 
-	if (strict_strtoul(buf, 10, &lval))
+	if (kstrtoint(buf, 10, &val))
 		return -EINVAL;
-	if (!(lval == 0UL || lval == 1UL)) {
+	if (!(val == 0 || val == 1)) {
 		dev_err(dev, "The mode is not supported\n");
 		return -EINVAL;
 	}
@@ -331,7 +331,7 @@ static ssize_t store_prox_infrared_suppression(struct device *dev,
 	/* get the  "proximity scheme" i.e. if the chip does on chip
 	infrared suppression (1 means perform on chip suppression) */
 	mutex_lock(&chip->lock);
-	chip->prox_scheme = (int)lval;
+	chip->prox_scheme = val;
 	mutex_unlock(&chip->lock);
 
 	return count;
diff --git a/drivers/staging/iio/light/tsl2583.c b/drivers/staging/iio/light/tsl2583.c
index d2aaf16883ce..f8c659568c38 100644
--- a/drivers/staging/iio/light/tsl2583.c
+++ b/drivers/staging/iio/light/tsl2583.c
@@ -493,9 +493,9 @@ static ssize_t taos_power_state_store(struct device *dev,
 	struct device_attribute *attr, const char *buf, size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	unsigned long value;
+	int value;
 
-	if (strict_strtoul(buf, 0, &value))
+	if (kstrtoint(buf, 0, &value))
 		return -EINVAL;
 
 	if (value == 0)
@@ -536,9 +536,9 @@ static ssize_t taos_gain_store(struct device *dev,
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct tsl2583_chip *chip = iio_priv(indio_dev);
-	unsigned long value;
+	int value;
 
-	if (strict_strtoul(buf, 0, &value))
+	if (kstrtoint(buf, 0, &value))
 		return -EINVAL;
 
 	switch (value) {
@@ -582,9 +582,9 @@ static ssize_t taos_als_time_store(struct device *dev,
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct tsl2583_chip *chip = iio_priv(indio_dev);
-	unsigned long value;
+	int value;
 
-	if (strict_strtoul(buf, 0, &value))
+	if (kstrtoint(buf, 0, &value))
 		return -EINVAL;
 
 	if ((value < 50) || (value > 650))
@@ -619,9 +619,9 @@ static ssize_t taos_als_trim_store(struct device *dev,
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct tsl2583_chip *chip = iio_priv(indio_dev);
-	unsigned long value;
+	int value;
 
-	if (strict_strtoul(buf, 0, &value))
+	if (kstrtoint(buf, 0, &value))
 		return -EINVAL;
 
 	if (value)
@@ -644,9 +644,9 @@ static ssize_t taos_als_cal_target_store(struct device *dev,
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct tsl2583_chip *chip = iio_priv(indio_dev);
-	unsigned long value;
+	int value;
 
-	if (strict_strtoul(buf, 0, &value))
+	if (kstrtoint(buf, 0, &value))
 		return -EINVAL;
 
 	if (value)
@@ -671,9 +671,9 @@ static ssize_t taos_do_calibrate(struct device *dev,
 	struct device_attribute *attr, const char *buf, size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	unsigned long value;
+	int value;
 
-	if (strict_strtoul(buf, 0, &value))
+	if (kstrtoint(buf, 0, &value))
 		return -EINVAL;
 
 	if (value == 1)
diff --git a/drivers/staging/iio/meter/ade7753.c b/drivers/staging/iio/meter/ade7753.c
index 74025fbae679..f0bba33f3a4e 100644
--- a/drivers/staging/iio/meter/ade7753.c
+++ b/drivers/staging/iio/meter/ade7753.c
@@ -186,9 +186,9 @@ static ssize_t ade7753_write_8bit(struct device *dev,
 {
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	int ret;
-	long val;
+	u8 val;
 
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtou8(buf, 10, &val);
 	if (ret)
 		goto error_ret;
 	ret = ade7753_spi_write_reg_8(dev, this_attr->address, val);
@@ -204,9 +204,9 @@ static ssize_t ade7753_write_16bit(struct device *dev,
 {
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	int ret;
-	long val;
+	u16 val;
 
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtou16(buf, 10, &val);
 	if (ret)
 		goto error_ret;
 	ret = ade7753_spi_write_reg_16(dev, this_attr->address, val);
@@ -399,11 +399,11 @@ static ssize_t ade7753_write_frequency(struct device *dev,
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7753_state *st = iio_priv(indio_dev);
-	unsigned long val;
+	u16 val;
 	int ret;
 	u16 reg, t;
 
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtou16(buf, 10, &val);
 	if (ret)
 		return ret;
 	if (val == 0)
diff --git a/drivers/staging/iio/meter/ade7754.c b/drivers/staging/iio/meter/ade7754.c
index f649ebe55a04..63a6ad1c4671 100644
--- a/drivers/staging/iio/meter/ade7754.c
+++ b/drivers/staging/iio/meter/ade7754.c
@@ -186,9 +186,9 @@ static ssize_t ade7754_write_8bit(struct device *dev,
 {
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	int ret;
-	long val;
+	u8 val;
 
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtou8(buf, 10, &val);
 	if (ret)
 		goto error_ret;
 	ret = ade7754_spi_write_reg_8(dev, this_attr->address, val);
@@ -204,9 +204,9 @@ static ssize_t ade7754_write_16bit(struct device *dev,
 {
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	int ret;
-	long val;
+	u16 val;
 
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtou16(buf, 10, &val);
 	if (ret)
 		goto error_ret;
 	ret = ade7754_spi_write_reg_16(dev, this_attr->address, val);
@@ -419,11 +419,11 @@ static ssize_t ade7754_write_frequency(struct device *dev,
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7754_state *st = iio_priv(indio_dev);
-	unsigned long val;
+	u16 val;
 	int ret;
 	u8 reg, t;
 
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtou16(buf, 10, &val);
 	if (ret)
 		return ret;
 	if (val == 0)
diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c
index 6005d4aab0c3..6a627512e2e5 100644
--- a/drivers/staging/iio/meter/ade7758_core.c
+++ b/drivers/staging/iio/meter/ade7758_core.c
@@ -269,9 +269,9 @@ static ssize_t ade7758_write_8bit(struct device *dev,
 {
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	int ret;
-	long val;
+	u8 val;
 
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtou8(buf, 10, &val);
 	if (ret)
 		goto error_ret;
 	ret = ade7758_spi_write_reg_8(dev, this_attr->address, val);
@@ -287,9 +287,9 @@ static ssize_t ade7758_write_16bit(struct device *dev,
 {
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	int ret;
-	long val;
+	u16 val;
 
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtou16(buf, 10, &val);
 	if (ret)
 		goto error_ret;
 	ret = ade7758_spi_write_reg_16(dev, this_attr->address, val);
@@ -502,11 +502,11 @@ static ssize_t ade7758_write_frequency(struct device *dev,
 		size_t len)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	unsigned long val;
+	u16 val;
 	int ret;
 	u8 reg, t;
 
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtou16(buf, 10, &val);
 	if (ret)
 		return ret;
 
diff --git a/drivers/staging/iio/meter/ade7759.c b/drivers/staging/iio/meter/ade7759.c
index d214ac4932cb..c1a3a5dfb71d 100644
--- a/drivers/staging/iio/meter/ade7759.c
+++ b/drivers/staging/iio/meter/ade7759.c
@@ -185,9 +185,9 @@ static ssize_t ade7759_write_8bit(struct device *dev,
 {
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	int ret;
-	long val;
+	u8 val;
 
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtou8(buf, 10, &val);
 	if (ret)
 		goto error_ret;
 	ret = ade7759_spi_write_reg_8(dev, this_attr->address, val);
@@ -203,9 +203,9 @@ static ssize_t ade7759_write_16bit(struct device *dev,
 {
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	int ret;
-	long val;
+	u16 val;
 
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtou16(buf, 10, &val);
 	if (ret)
 		goto error_ret;
 	ret = ade7759_spi_write_reg_16(dev, this_attr->address, val);
@@ -360,11 +360,11 @@ static ssize_t ade7759_write_frequency(struct device *dev,
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct ade7759_state *st = iio_priv(indio_dev);
-	unsigned long val;
+	u16 val;
 	int ret;
 	u16 reg, t;
 
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtou16(buf, 10, &val);
 	if (ret)
 		return ret;
 	if (val == 0)
diff --git a/drivers/staging/iio/meter/ade7854.c b/drivers/staging/iio/meter/ade7854.c
index e8379c0f1173..8e068abde698 100644
--- a/drivers/staging/iio/meter/ade7854.c
+++ b/drivers/staging/iio/meter/ade7854.c
@@ -100,9 +100,9 @@ static ssize_t ade7854_write_8bit(struct device *dev,
 	struct ade7854_state *st = iio_priv(indio_dev);
 
 	int ret;
-	long val;
+	u8 val;
 
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtou8(buf, 10, &val);
 	if (ret)
 		goto error_ret;
 	ret = st->write_reg_8(dev, this_attr->address, val);
@@ -121,9 +121,9 @@ static ssize_t ade7854_write_16bit(struct device *dev,
 	struct ade7854_state *st = iio_priv(indio_dev);
 
 	int ret;
-	long val;
+	u16 val;
 
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtou16(buf, 10, &val);
 	if (ret)
 		goto error_ret;
 	ret = st->write_reg_16(dev, this_attr->address, val);
@@ -142,9 +142,9 @@ static ssize_t ade7854_write_24bit(struct device *dev,
 	struct ade7854_state *st = iio_priv(indio_dev);
 
 	int ret;
-	long val;
+	u32 val;
 
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtou32(buf, 10, &val);
 	if (ret)
 		goto error_ret;
 	ret = st->write_reg_24(dev, this_attr->address, val);
@@ -163,9 +163,9 @@ static ssize_t ade7854_write_32bit(struct device *dev,
 	struct ade7854_state *st = iio_priv(indio_dev);
 
 	int ret;
-	long val;
+	u32 val;
 
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtou32(buf, 10, &val);
 	if (ret)
 		goto error_ret;
 	ret = st->write_reg_32(dev, this_attr->address, val);
diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c
index dcdadbbcf7e8..2b0c8e50654d 100644
--- a/drivers/staging/iio/resolver/ad2s1210.c
+++ b/drivers/staging/iio/resolver/ad2s1210.c
@@ -206,10 +206,10 @@ static ssize_t ad2s1210_store_fclkin(struct device *dev,
 				     size_t len)
 {
 	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
-	unsigned long fclkin;
+	unsigned int fclkin;
 	int ret;
 
-	ret = strict_strtoul(buf, 10, &fclkin);
+	ret = kstrtouint(buf, 10, &fclkin);
 	if (ret)
 		return ret;
 	if (fclkin < AD2S1210_MIN_CLKIN || fclkin > AD2S1210_MAX_CLKIN) {
@@ -243,10 +243,10 @@ static ssize_t ad2s1210_store_fexcit(struct device *dev,
 				     const char *buf, size_t len)
 {
 	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
-	unsigned long fexcit;
+	unsigned int fexcit;
 	int ret;
 
-	ret = strict_strtoul(buf, 10, &fexcit);
+	ret = kstrtouint(buf, 10, &fexcit);
 	if (ret < 0)
 		return ret;
 	if (fexcit < AD2S1210_MIN_EXCIT || fexcit > AD2S1210_MAX_EXCIT) {
@@ -282,11 +282,11 @@ static ssize_t ad2s1210_store_control(struct device *dev,
 			const char *buf, size_t len)
 {
 	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
-	unsigned long udata;
+	unsigned char udata;
 	unsigned char data;
 	int ret;
 
-	ret = strict_strtoul(buf, 16, &udata);
+	ret = kstrtou8(buf, 16, &udata);
 	if (ret)
 		return -EINVAL;
 
@@ -337,10 +337,10 @@ static ssize_t ad2s1210_store_resolution(struct device *dev,
 {
 	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
 	unsigned char data;
-	unsigned long udata;
+	unsigned char udata;
 	int ret;
 
-	ret = strict_strtoul(buf, 10, &udata);
+	ret = kstrtou8(buf, 10, &udata);
 	if (ret || udata < 10 || udata > 16) {
 		pr_err("ad2s1210: resolution out of range\n");
 		return -EINVAL;
@@ -438,11 +438,11 @@ static ssize_t ad2s1210_store_reg(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t len)
 {
 	struct ad2s1210_state *st = iio_priv(dev_to_iio_dev(dev));
-	unsigned long data;
+	unsigned char data;
 	int ret;
 	struct iio_dev_attr *iattr = to_iio_dev_attr(attr);
 
-	ret = strict_strtoul(buf, 10, &data);
+	ret = kstrtou8(buf, 10, &data);
 	if (ret)
 		return -EINVAL;
 	mutex_lock(&st->lock);
diff --git a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
index 38a158b77b1d..ebb189c68d88 100644
--- a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
+++ b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
@@ -83,32 +83,28 @@ static ssize_t iio_bfin_tmr_frequency_store(struct device *dev,
 {
 	struct iio_trigger *trig = to_iio_trigger(dev);
 	struct bfin_tmr_state *st = iio_trigger_get_drvdata(trig);
-	unsigned long val;
+	unsigned int val;
 	bool enabled;
 	int ret;
 
-	ret = strict_strtoul(buf, 10, &val);
+	ret = kstrtouint(buf, 10, &val);
 	if (ret)
-		goto error_ret;
+		return ret;
 
 	if (val > 100000) {
-		ret = -EINVAL;
-		goto error_ret;
-	}
+		return -EINVAL;
 
 	enabled = get_enabled_gptimers() & st->t->bit;
 
 	if (enabled)
 		disable_gptimers(st->t->bit);
 
-	if (!val)
-		goto error_ret;
+	if (val == 0)
+		return count;
 
 	val = get_sclk() / val;
-	if (val <= 4 || val <= st->duty) {
-		ret = -EINVAL;
-		goto error_ret;
-	}
+	if (val <= 4 || val <= st->duty)
+		return -EINVAL;
 
 	set_gptimer_period(st->t->id, val);
 	set_gptimer_pwidth(st->t->id, val - st->duty);
@@ -116,8 +112,7 @@ static ssize_t iio_bfin_tmr_frequency_store(struct device *dev,
 	if (enabled)
 		enable_gptimers(st->t->bit);
 
-error_ret:
-	return ret ? ret : count;
+	return count;
 }
 
 static ssize_t iio_bfin_tmr_frequency_show(struct device *dev,
diff --git a/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c b/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c
index 79695974b1d4..48a6afa84088 100644
--- a/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c
+++ b/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c
@@ -53,10 +53,10 @@ static ssize_t iio_trig_periodic_write_freq(struct device *dev,
 {
 	struct iio_trigger *trig = to_iio_trigger(dev);
 	struct iio_prtc_trigger_info *trig_info = iio_trigger_get_drvdata(trig);
-	unsigned long val;
+	int val;
 	int ret;
 
-	ret = strict_strtoul(buf, 10, &val);
+	ret = kstrtoint(buf, 10, &val);
 	if (ret)
 		goto error_ret;
 
-- 
cgit 


From a0ef6db7e0d83b8b9d9902c8df2240028d79b275 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Tue, 3 Sep 2013 01:48:00 +0100
Subject: iio: mxs-lradc: Fix the order of resources removal

Fix the order of resources removal in the error path of mxs_lradc_probe()
and also in mxs_lradc_remove().

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/mxs-lradc.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index a08c1736458b..75f5aac11885 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -987,7 +987,7 @@ static int mxs_lradc_probe(struct platform_device *pdev)
 	/* Register the touchscreen input device. */
 	ret = mxs_lradc_ts_register(lradc);
 	if (ret)
-		goto err_dev;
+		goto err_ts_register;
 
 	/* Register IIO device. */
 	ret = iio_device_register(iio);
@@ -1000,6 +1000,8 @@ static int mxs_lradc_probe(struct platform_device *pdev)
 
 err_ts:
 	mxs_lradc_ts_unregister(lradc);
+err_ts_register:
+	mxs_lradc_hw_stop(lradc);
 err_dev:
 	mxs_lradc_trigger_remove(iio);
 err_trig:
@@ -1012,13 +1014,11 @@ static int mxs_lradc_remove(struct platform_device *pdev)
 	struct iio_dev *iio = platform_get_drvdata(pdev);
 	struct mxs_lradc *lradc = iio_priv(iio);
 
+	iio_device_unregister(iio);
 	mxs_lradc_ts_unregister(lradc);
-
 	mxs_lradc_hw_stop(lradc);
-
-	iio_device_unregister(iio);
-	iio_triggered_buffer_cleanup(iio);
 	mxs_lradc_trigger_remove(iio);
+	iio_triggered_buffer_cleanup(iio);
 
 	return 0;
 }
-- 
cgit 


From 8c4a8c9d5e55e10e5b0c8d3406af363281ac2606 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Tue, 3 Sep 2013 01:48:00 +0100
Subject: iio: mxs-lradc: Add MODULE_ALIAS

Add MODULE_ALIAS, so that auto module loading can work.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/mxs-lradc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index 75f5aac11885..f36cde506690 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -1038,3 +1038,4 @@ module_platform_driver(mxs_lradc_driver);
 MODULE_AUTHOR("Marek Vasut <marex@denx.de>");
 MODULE_DESCRIPTION("Freescale i.MX28 LRADC driver");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:" DRIVER_NAME);
-- 
cgit 


From 5440ce253779fd42ae3b0df64d77430274079ab7 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Tue, 3 Sep 2013 15:09:58 +0200
Subject: ath10k: prevent CE from looping indefinitely

The double while() could end up running forever.
Inner while() would complete very fast. However
the completion processing could take enough time
for more completions to flow in. In that case the
outer while() would not terminate and run again,
and again. This could happen especially on a slow
host system.

This could lead to a system freeze during heavy
traffic. Note: this doesn't solve all known
starvation issues yet.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/ce.c  | 57 +++++-------------------
 drivers/net/wireless/ath/ath10k/ce.h  | 26 ++---------
 drivers/net/wireless/ath/ath10k/pci.c | 84 ++++++++++++++++-------------------
 3 files changed, 52 insertions(+), 115 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index afe5df404ce6..924b29ec7a74 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -742,11 +742,6 @@ void ath10k_ce_per_engine_service(struct ath10k *ar, unsigned int ce_id)
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 	struct ath10k_ce_pipe *ce_state = &ar_pci->ce_states[ce_id];
 	u32 ctrl_addr = ce_state->ctrl_addr;
-	void *transfer_context;
-	u32 buf;
-	unsigned int nbytes;
-	unsigned int id;
-	unsigned int flags;
 	int ret;
 
 	ret = ath10k_pci_wake(ar);
@@ -759,38 +754,15 @@ void ath10k_ce_per_engine_service(struct ath10k *ar, unsigned int ce_id)
 	ath10k_ce_engine_int_status_clear(ar, ctrl_addr,
 					  HOST_IS_COPY_COMPLETE_MASK);
 
-	if (ce_state->recv_cb) {
-		/*
-		 * Pop completed recv buffers and call the registered
-		 * recv callback for each
-		 */
-		while (ath10k_ce_completed_recv_next_nolock(ce_state,
-							    &transfer_context,
-							    &buf, &nbytes,
-							    &id, &flags) == 0) {
-			spin_unlock_bh(&ar_pci->ce_lock);
-			ce_state->recv_cb(ce_state, transfer_context, buf,
-					  nbytes, id, flags);
-			spin_lock_bh(&ar_pci->ce_lock);
-		}
-	}
+	spin_unlock_bh(&ar_pci->ce_lock);
 
-	if (ce_state->send_cb) {
-		/*
-		 * Pop completed send buffers and call the registered
-		 * send callback for each
-		 */
-		while (ath10k_ce_completed_send_next_nolock(ce_state,
-							    &transfer_context,
-							    &buf,
-							    &nbytes,
-							    &id) == 0) {
-			spin_unlock_bh(&ar_pci->ce_lock);
-			ce_state->send_cb(ce_state, transfer_context,
-					  buf, nbytes, id);
-			spin_lock_bh(&ar_pci->ce_lock);
-		}
-	}
+	if (ce_state->recv_cb)
+		ce_state->recv_cb(ce_state);
+
+	if (ce_state->send_cb)
+		ce_state->send_cb(ce_state);
+
+	spin_lock_bh(&ar_pci->ce_lock);
 
 	/*
 	 * Misc CE interrupts are not being handled, but still need
@@ -881,11 +853,7 @@ void ath10k_ce_disable_interrupts(struct ath10k *ar)
 }
 
 void ath10k_ce_send_cb_register(struct ath10k_ce_pipe *ce_state,
-				void (*send_cb)(struct ath10k_ce_pipe *ce_state,
-						void *transfer_context,
-						u32 buffer,
-						unsigned int nbytes,
-						unsigned int transfer_id),
+				void (*send_cb)(struct ath10k_ce_pipe *),
 				int disable_interrupts)
 {
 	struct ath10k *ar = ce_state->ar;
@@ -898,12 +866,7 @@ void ath10k_ce_send_cb_register(struct ath10k_ce_pipe *ce_state,
 }
 
 void ath10k_ce_recv_cb_register(struct ath10k_ce_pipe *ce_state,
-				void (*recv_cb)(struct ath10k_ce_pipe *ce_state,
-						void *transfer_context,
-						u32 buffer,
-						unsigned int nbytes,
-						unsigned int transfer_id,
-						unsigned int flags))
+				void (*recv_cb)(struct ath10k_ce_pipe *))
 {
 	struct ath10k *ar = ce_state->ar;
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
diff --git a/drivers/net/wireless/ath/ath10k/ce.h b/drivers/net/wireless/ath/ath10k/ce.h
index cfef7d0fc5c4..fb22361bde21 100644
--- a/drivers/net/wireless/ath/ath10k/ce.h
+++ b/drivers/net/wireless/ath/ath10k/ce.h
@@ -116,17 +116,8 @@ struct ath10k_ce_pipe {
 
 	u32 ctrl_addr;
 
-	void (*send_cb) (struct ath10k_ce_pipe *ce_state,
-			 void *per_transfer_send_context,
-			 u32 buffer,
-			 unsigned int nbytes,
-			 unsigned int transfer_id);
-	void (*recv_cb) (struct ath10k_ce_pipe *ce_state,
-			 void *per_transfer_recv_context,
-			 u32 buffer,
-			 unsigned int nbytes,
-			 unsigned int transfer_id,
-			 unsigned int flags);
+	void (*send_cb)(struct ath10k_ce_pipe *);
+	void (*recv_cb)(struct ath10k_ce_pipe *);
 
 	unsigned int src_sz_max;
 	struct ath10k_ce_ring *src_ring;
@@ -181,11 +172,7 @@ int ath10k_ce_send(struct ath10k_ce_pipe *ce_state,
 		   unsigned int flags);
 
 void ath10k_ce_send_cb_register(struct ath10k_ce_pipe *ce_state,
-				void (*send_cb)(struct ath10k_ce_pipe *ce_state,
-						void *transfer_context,
-						u32 buffer,
-						unsigned int nbytes,
-						unsigned int transfer_id),
+				void (*send_cb)(struct ath10k_ce_pipe *),
 				int disable_interrupts);
 
 /* Append a simple buffer (address/length) to a sendlist. */
@@ -228,12 +215,7 @@ int ath10k_ce_recv_buf_enqueue(struct ath10k_ce_pipe *ce_state,
 			       u32 buffer);
 
 void ath10k_ce_recv_cb_register(struct ath10k_ce_pipe *ce_state,
-				void (*recv_cb)(struct ath10k_ce_pipe *ce_state,
-						void *transfer_context,
-						u32 buffer,
-						unsigned int nbytes,
-						unsigned int transfer_id,
-						unsigned int flags));
+				void (*recv_cb)(struct ath10k_ce_pipe *));
 
 /* recv flags */
 /* Data is byte-swapped */
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 880fcd0d604f..0ad65a0f94ca 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -612,19 +612,20 @@ exit:
 }
 
 /* Called by lower (CE) layer when a send to Target completes. */
-static void ath10k_pci_ce_send_done(struct ath10k_ce_pipe *ce_state,
-				    void *transfer_context,
-				    u32 ce_data,
-				    unsigned int nbytes,
-				    unsigned int transfer_id)
+static void ath10k_pci_ce_send_done(struct ath10k_ce_pipe *ce_state)
 {
 	struct ath10k *ar = ce_state->ar;
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 	struct ath10k_pci_pipe *pipe_info =  &ar_pci->pipe_info[ce_state->id];
 	struct ath10k_pci_compl *compl;
-	bool process = false;
+	void *transfer_context;
+	u32 ce_data;
+	unsigned int nbytes;
+	unsigned int transfer_id;
 
-	do {
+	while (ath10k_ce_completed_send_next(ce_state, &transfer_context,
+					     &ce_data, &nbytes,
+					     &transfer_id) == 0) {
 		/*
 		 * For the send completion of an item in sendlist, just
 		 * increment num_sends_allowed. The upper layer callback will
@@ -655,38 +656,28 @@ static void ath10k_pci_ce_send_done(struct ath10k_ce_pipe *ce_state,
 		spin_lock_bh(&ar_pci->compl_lock);
 		list_add_tail(&compl->list, &ar_pci->compl_process);
 		spin_unlock_bh(&ar_pci->compl_lock);
-
-		process = true;
-	} while (ath10k_ce_completed_send_next(ce_state,
-							   &transfer_context,
-							   &ce_data, &nbytes,
-							   &transfer_id) == 0);
-
-	/*
-	 * If only some of the items within a sendlist have completed,
-	 * don't invoke completion processing until the entire sendlist
-	 * has been sent.
-	 */
-	if (!process)
-		return;
+	}
 
 	ath10k_pci_process_ce(ar);
 }
 
 /* Called by lower (CE) layer when data is received from the Target. */
-static void ath10k_pci_ce_recv_data(struct ath10k_ce_pipe *ce_state,
-				    void *transfer_context, u32 ce_data,
-				    unsigned int nbytes,
-				    unsigned int transfer_id,
-				    unsigned int flags)
+static void ath10k_pci_ce_recv_data(struct ath10k_ce_pipe *ce_state)
 {
 	struct ath10k *ar = ce_state->ar;
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 	struct ath10k_pci_pipe *pipe_info =  &ar_pci->pipe_info[ce_state->id];
 	struct ath10k_pci_compl *compl;
 	struct sk_buff *skb;
+	void *transfer_context;
+	u32 ce_data;
+	unsigned int nbytes;
+	unsigned int transfer_id;
+	unsigned int flags;
 
-	do {
+	while (ath10k_ce_completed_recv_next(ce_state, &transfer_context,
+					     &ce_data, &nbytes, &transfer_id,
+					     &flags) == 0) {
 		compl = get_free_compl(pipe_info);
 		if (!compl)
 			break;
@@ -709,12 +700,7 @@ static void ath10k_pci_ce_recv_data(struct ath10k_ce_pipe *ce_state,
 		spin_lock_bh(&ar_pci->compl_lock);
 		list_add_tail(&compl->list, &ar_pci->compl_process);
 		spin_unlock_bh(&ar_pci->compl_lock);
-
-	} while (ath10k_ce_completed_recv_next(ce_state,
-							   &transfer_context,
-							   &ce_data, &nbytes,
-							   &transfer_id,
-							   &flags) == 0);
+	}
 
 	ath10k_pci_process_ce(ar);
 }
@@ -1491,13 +1477,16 @@ err_dma:
 	return ret;
 }
 
-static void ath10k_pci_bmi_send_done(struct ath10k_ce_pipe *ce_state,
-				     void *transfer_context,
-				     u32 data,
-				     unsigned int nbytes,
-				     unsigned int transfer_id)
+static void ath10k_pci_bmi_send_done(struct ath10k_ce_pipe *ce_state)
 {
-	struct bmi_xfer *xfer = transfer_context;
+	struct bmi_xfer *xfer;
+	u32 ce_data;
+	unsigned int nbytes;
+	unsigned int transfer_id;
+
+	if (ath10k_ce_completed_send_next(ce_state, (void **)&xfer, &ce_data,
+					  &nbytes, &transfer_id))
+		return;
 
 	if (xfer->wait_for_resp)
 		return;
@@ -1505,14 +1494,17 @@ static void ath10k_pci_bmi_send_done(struct ath10k_ce_pipe *ce_state,
 	complete(&xfer->done);
 }
 
-static void ath10k_pci_bmi_recv_data(struct ath10k_ce_pipe *ce_state,
-				     void *transfer_context,
-				     u32 data,
-				     unsigned int nbytes,
-				     unsigned int transfer_id,
-				     unsigned int flags)
+static void ath10k_pci_bmi_recv_data(struct ath10k_ce_pipe *ce_state)
 {
-	struct bmi_xfer *xfer = transfer_context;
+	struct bmi_xfer *xfer;
+	u32 ce_data;
+	unsigned int nbytes;
+	unsigned int transfer_id;
+	unsigned int flags;
+
+	if (ath10k_ce_completed_recv_next(ce_state, (void **)&xfer, &ce_data,
+					  &nbytes, &transfer_id, &flags))
+		return;
 
 	if (!xfer->wait_for_resp) {
 		ath10k_warn("unexpected: BMI data received; ignoring\n");
-- 
cgit 


From 4fa3332505898b4709b75e99bb6a09c56885266f Mon Sep 17 00:00:00 2001
From: Xie XiuQi <xiexiuqi@huawei.com>
Date: Fri, 6 Sep 2013 12:02:00 +0100
Subject: staging:iio:adc:ad7606 remove unnecessary work pending test

Remove unnecessary work pending test before calling schedule_work().
It has been tested in queue_work_on() already. No functional changed.

Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Reviewed-by: Tejun Heo <tj@kernel.org>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/ad7606_core.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/iio/adc/ad7606_core.c b/drivers/staging/iio/adc/ad7606_core.c
index 0eb5ed05fbb8..f042027b5291 100644
--- a/drivers/staging/iio/adc/ad7606_core.c
+++ b/drivers/staging/iio/adc/ad7606_core.c
@@ -425,8 +425,7 @@ static irqreturn_t ad7606_interrupt(int irq, void *dev_id)
 	struct ad7606_state *st = iio_priv(indio_dev);
 
 	if (iio_buffer_enabled(indio_dev)) {
-		if (!work_pending(&st->poll_work))
-			schedule_work(&st->poll_work);
+		schedule_work(&st->poll_work);
 	} else {
 		st->done = true;
 		wake_up_interruptible(&st->wq_data_avail);
-- 
cgit 


From 4ed998dcbfa971e4c33edca7b2b39ce693014ba8 Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Mon, 9 Sep 2013 17:50:45 +0200
Subject: ath10k: define ath10k_debug_start/_stop as static inline

Otherwise if CONFIG_ATH10K_DEBUGFS won't be set we will
end up with multiple definitions and compilation failure
in each place the header is included.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/debug.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/debug.h b/drivers/net/wireless/ath/ath10k/debug.h
index 9c442a82c493..376a56b093a7 100644
--- a/drivers/net/wireless/ath/ath10k/debug.h
+++ b/drivers/net/wireless/ath/ath10k/debug.h
@@ -52,12 +52,12 @@ void ath10k_debug_read_target_stats(struct ath10k *ar,
 				    struct wmi_stats_event *ev);
 
 #else
-int ath10k_debug_start(struct ath10k *ar)
+static inline int ath10k_debug_start(struct ath10k *ar)
 {
 	return 0;
 }
 
-void ath10k_debug_stop(struct ath10k *ar)
+static inline void ath10k_debug_stop(struct ath10k *ar)
 {
 }
 
-- 
cgit 


From 6979287a7df66a92d6f308338e972a406f9ef842 Mon Sep 17 00:00:00 2001
From: Yinghai Lu <yinghai@kernel.org>
Date: Fri, 6 Sep 2013 19:07:09 -0700
Subject: x86/mm: Add 'step_size' comments to init_mem_mapping()

Current code uses macro to shift by 5, but there is no explanation
why there's no worry about an overflow there.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Jacob Shin <jacob.shin@amd.com>
Link: http://lkml.kernel.org/r/1378519629-10433-1-git-send-email-yinghai@kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/mm/init.c | 23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 04664cdb7fda..ce32017c5e38 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -399,8 +399,25 @@ static unsigned long __init init_range_memory_mapping(
 	return mapped_ram_size;
 }
 
-/* (PUD_SHIFT-PMD_SHIFT)/2 */
-#define STEP_SIZE_SHIFT 5
+static unsigned long __init get_new_step_size(unsigned long step_size)
+{
+	/*
+	 * Explain why we shift by 5 and why we don't have to worry about
+	 * 'step_size << 5' overflowing:
+	 *
+	 * initial mapped size is PMD_SIZE (2M).
+	 * We can not set step_size to be PUD_SIZE (1G) yet.
+	 * In worse case, when we cross the 1G boundary, and
+	 * PG_LEVEL_2M is not set, we will need 1+1+512 pages (2M + 8k)
+	 * to map 1G range with PTE. Use 5 as shift for now.
+	 *
+	 * Don't need to worry about overflow, on 32bit, when step_size
+	 * is 0, round_down() returns 0 for start, and that turns it
+	 * into 0x100000000ULL.
+	 */
+	return step_size << 5;
+}
+
 void __init init_mem_mapping(void)
 {
 	unsigned long end, real_end, start, last_start;
@@ -449,7 +466,7 @@ void __init init_mem_mapping(void)
 		min_pfn_mapped = last_start >> PAGE_SHIFT;
 		/* only increase step_size after big range get mapped */
 		if (new_mapped_ram_size > mapped_ram_size)
-			step_size <<= STEP_SIZE_SHIFT;
+			step_size = get_new_step_size(step_size);
 		mapped_ram_size += new_mapped_ram_size;
 	}
 
-- 
cgit 


From 21e884bafa039fab0facd327c9380b58151e73f2 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Tue, 3 Sep 2013 11:17:25 +0200
Subject: m68k/m68knommu: Implement __get_user_unaligned/__put_user_unaligned()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

fs/btrfs/ioctl.c: In function ‘btrfs_ioctl_file_extent_same’:
fs/btrfs/ioctl.c:2802: error: implicit declaration of function ‘__put_user_unaligned’

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 arch/m68k/include/asm/uaccess.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/m68k/include/asm/uaccess.h b/arch/m68k/include/asm/uaccess.h
index 639c731568b0..3fadc4a93d97 100644
--- a/arch/m68k/include/asm/uaccess.h
+++ b/arch/m68k/include/asm/uaccess.h
@@ -3,3 +3,10 @@
 #else
 #include <asm/uaccess_mm.h>
 #endif
+
+#ifdef CONFIG_CPU_HAS_NO_UNALIGNED
+#include <asm-generic/uaccess-unaligned.h>
+#else
+#define __get_user_unaligned(x, ptr)	__get_user((x), (ptr))
+#define __put_user_unaligned(x, ptr)	__put_user((x), (ptr))
+#endif
-- 
cgit 


From 8fec6f74a62c4e3d6897bc91f2eb08dfbadfe6da Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 10 Sep 2013 17:06:26 +0530
Subject: spi: atmel: Fix incorrect error path

'irq' was not released when clk_prepare_enable failed.
Fix it.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-atmel.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index fd7cc566095a..d4ac60b4a56e 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -1583,7 +1583,7 @@ static int atmel_spi_probe(struct platform_device *pdev)
 	/* Initialize the hardware */
 	ret = clk_prepare_enable(clk);
 	if (ret)
-		goto out_unmap_regs;
+		goto out_free_irq;
 	spi_writel(as, CR, SPI_BIT(SWRST));
 	spi_writel(as, CR, SPI_BIT(SWRST)); /* AT91SAM9263 Rev B workaround */
 	if (as->caps.has_wdrbt) {
@@ -1614,6 +1614,7 @@ out_free_dma:
 	spi_writel(as, CR, SPI_BIT(SWRST));
 	spi_writel(as, CR, SPI_BIT(SWRST)); /* AT91SAM9263 Rev B workaround */
 	clk_disable_unprepare(clk);
+out_free_irq:
 	free_irq(irq, master);
 out_unmap_regs:
 	iounmap(as->regs);
-- 
cgit 


From 5a523605afa7d3b54b2e7041f8c9e6bc39872a7e Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Tue, 10 Sep 2013 15:45:05 +0530
Subject: regulator: core: provide fixed voltage in desc for single voltage
 rail

If given rail has the single voltage (n_voltages = 1) then provide the
rail voltage through regulator descriptor so that core can use this
value for finding voltage.

This will avoid the implementation of the callback for get_voltage() or
list_voltage() callback on regulator driver.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/core.c         | 5 ++++-
 include/linux/regulator/driver.h | 2 ++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index a01b8b3b70ca..abc899ed1ebf 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2489,6 +2489,8 @@ static int _regulator_get_voltage(struct regulator_dev *rdev)
 		ret = rdev->desc->ops->get_voltage(rdev);
 	} else if (rdev->desc->ops->list_voltage) {
 		ret = rdev->desc->ops->list_voltage(rdev, 0);
+	} else if (rdev->desc->fixed_uV && (rdev->desc->n_voltages == 1)) {
+		ret = rdev->desc->fixed_uV;
 	} else {
 		return -EINVAL;
 	}
@@ -3170,7 +3172,8 @@ static int add_regulator_attributes(struct regulator_dev *rdev)
 	/* some attributes need specific methods to be displayed */
 	if ((ops->get_voltage && ops->get_voltage(rdev) >= 0) ||
 	    (ops->get_voltage_sel && ops->get_voltage_sel(rdev) >= 0) ||
-	    (ops->list_voltage && ops->list_voltage(rdev, 0) >= 0)) {
+	    (ops->list_voltage && ops->list_voltage(rdev, 0) >= 0) ||
+		(rdev->desc->fixed_uV && (rdev->desc->n_voltages == 1))) {
 		status = device_create_file(dev, &dev_attr_microvolts);
 		if (status < 0)
 			return status;
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 67e13aa5a478..9e8241a9f28f 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -207,6 +207,7 @@ enum regulator_type {
  * @min_uV: Voltage given by the lowest selector (if linear mapping)
  * @uV_step: Voltage increase with each selector (if linear mapping)
  * @linear_min_sel: Minimal selector for starting linear mapping
+ * @fixed_uV: Fixed voltage of rails.
  * @ramp_delay: Time to settle down after voltage change (unit: uV/us)
  * @volt_table: Voltage mapping table (if table based mapping)
  *
@@ -239,6 +240,7 @@ struct regulator_desc {
 	unsigned int min_uV;
 	unsigned int uV_step;
 	unsigned int linear_min_sel;
+	int fixed_uV;
 	unsigned int ramp_delay;
 
 	const struct regulator_linear_range *linear_ranges;
-- 
cgit 


From c368e5fc2a190923b786f2de3e79430ea3566a25 Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Tue, 10 Sep 2013 15:45:06 +0530
Subject: regulator: fixed: get rid of {get|list}_voltage()

Provide the rail supply voltage through descriptor to the
core and remove the callbacks which implement the get_voltage
and list_voltage.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/fixed.c | 28 ++--------------------------
 1 file changed, 2 insertions(+), 26 deletions(-)

diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c
index 7610920014d7..de811f3b921b 100644
--- a/drivers/regulator/fixed.c
+++ b/drivers/regulator/fixed.c
@@ -34,7 +34,6 @@
 struct fixed_voltage_data {
 	struct regulator_desc desc;
 	struct regulator_dev *dev;
-	int microvolts;
 };
 
 
@@ -108,30 +107,7 @@ of_get_fixed_voltage_config(struct device *dev)
 	return config;
 }
 
-static int fixed_voltage_get_voltage(struct regulator_dev *dev)
-{
-	struct fixed_voltage_data *data = rdev_get_drvdata(dev);
-
-	if (data->microvolts)
-		return data->microvolts;
-	else
-		return -EINVAL;
-}
-
-static int fixed_voltage_list_voltage(struct regulator_dev *dev,
-				      unsigned selector)
-{
-	struct fixed_voltage_data *data = rdev_get_drvdata(dev);
-
-	if (selector != 0)
-		return -EINVAL;
-
-	return data->microvolts;
-}
-
 static struct regulator_ops fixed_voltage_ops = {
-	.get_voltage = fixed_voltage_get_voltage,
-	.list_voltage = fixed_voltage_list_voltage,
 };
 
 static int reg_fixed_voltage_probe(struct platform_device *pdev)
@@ -186,7 +162,7 @@ static int reg_fixed_voltage_probe(struct platform_device *pdev)
 	if (config->microvolts)
 		drvdata->desc.n_voltages = 1;
 
-	drvdata->microvolts = config->microvolts;
+	drvdata->desc.fixed_uV = config->microvolts;
 
 	if (config->gpio >= 0)
 		cfg.ena_gpio = config->gpio;
@@ -222,7 +198,7 @@ static int reg_fixed_voltage_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, drvdata);
 
 	dev_dbg(&pdev->dev, "%s supplying %duV\n", drvdata->desc.name,
-		drvdata->microvolts);
+		drvdata->desc.fixed_uV);
 
 	return 0;
 
-- 
cgit 


From ff47ab4ff3cddfa7bc1b25b990e24abe2ae474ff Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Fri, 16 Aug 2013 14:17:19 -0700
Subject: x86: Add 1/2/4/8 byte optimization to 64bit
 __copy_{from,to}_user_inatomic

The 64bit __copy_{from,to}_user_inatomic always called
copy_from_user_generic, but skipped the special optimizations for 1/2/4/8
byte accesses.

This especially hurts the futex call, which accesses the 4 byte futex
user value with a complicated fast string operation in a function call,
instead of a single movl.

Use __copy_{from,to}_user for _inatomic instead to get the same
optimizations. The only problem was the might_fault() in those functions.
So move that to new wrapper and call __copy_{f,t}_user_nocheck()
from *_inatomic directly.

32bit already did this correctly by duplicating the code.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Link: http://lkml.kernel.org/r/1376687844-19857-2-git-send-email-andi@firstfloor.org
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/include/asm/uaccess_64.h | 24 ++++++++++++++++++------
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
index 4f7923dd0007..64476bb2a146 100644
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -77,11 +77,10 @@ int copy_to_user(void __user *dst, const void *src, unsigned size)
 }
 
 static __always_inline __must_check
-int __copy_from_user(void *dst, const void __user *src, unsigned size)
+int __copy_from_user_nocheck(void *dst, const void __user *src, unsigned size)
 {
 	int ret = 0;
 
-	might_fault();
 	if (!__builtin_constant_p(size))
 		return copy_user_generic(dst, (__force void *)src, size);
 	switch (size) {
@@ -121,11 +120,17 @@ int __copy_from_user(void *dst, const void __user *src, unsigned size)
 }
 
 static __always_inline __must_check
-int __copy_to_user(void __user *dst, const void *src, unsigned size)
+int __copy_from_user(void *dst, const void __user *src, unsigned size)
+{
+	might_fault();
+	return __copy_from_user_nocheck(dst, src, size);
+}
+
+static __always_inline __must_check
+int __copy_to_user_nocheck(void __user *dst, const void *src, unsigned size)
 {
 	int ret = 0;
 
-	might_fault();
 	if (!__builtin_constant_p(size))
 		return copy_user_generic((__force void *)dst, src, size);
 	switch (size) {
@@ -164,6 +169,13 @@ int __copy_to_user(void __user *dst, const void *src, unsigned size)
 	}
 }
 
+static __always_inline __must_check
+int __copy_to_user(void __user *dst, const void *src, unsigned size)
+{
+	might_fault();
+	return __copy_to_user_nocheck(dst, src, size);
+}
+
 static __always_inline __must_check
 int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
 {
@@ -220,13 +232,13 @@ int __copy_in_user(void __user *dst, const void __user *src, unsigned size)
 static __must_check __always_inline int
 __copy_from_user_inatomic(void *dst, const void __user *src, unsigned size)
 {
-	return copy_user_generic(dst, (__force const void *)src, size);
+	return __copy_from_user_nocheck(dst, (__force const void *)src, size);
 }
 
 static __must_check __always_inline int
 __copy_to_user_inatomic(void __user *dst, const void *src, unsigned size)
 {
-	return copy_user_generic((__force void *)dst, src, size);
+	return __copy_to_user_nocheck((__force void *)dst, src, size);
 }
 
 extern long __copy_user_nocache(void *dst, const void __user *src,
-- 
cgit 


From 030a13d7099e95122d8b79fce602f9727c81a839 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 11 Sep 2013 11:00:00 +0100
Subject: MAINTAINERS: Update Jonathan's email address

Updated with the current one.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 MAINTAINERS | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 65e29558e0a6..7f51a345ed8e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4132,7 +4132,7 @@ S:	Maintained
 F:	drivers/media/rc/iguanair.c
 
 IIO SUBSYSTEM AND DRIVERS
-M:	Jonathan Cameron <jic23@cam.ac.uk>
+M:	Jonathan Cameron <jic23@kernel.org>
 L:	linux-iio@vger.kernel.org
 S:	Maintained
 F:	drivers/iio/
@@ -7870,7 +7870,7 @@ S:	Maintained
 F:	drivers/staging/media/go7007/
 
 STAGING - INDUSTRIAL IO
-M:	Jonathan Cameron <jic23@cam.ac.uk>
+M:	Jonathan Cameron <jic23@kernel.org>
 L:	linux-iio@vger.kernel.org
 S:	Odd Fixes
 F:	drivers/staging/iio/
-- 
cgit 


From a6dcb71b0d9d3ad68f63e8653aed07daa6265441 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Tue, 3 Sep 2013 02:05:00 +0100
Subject: staging:iio:hmc5843: Use devm_iio_device_alloc

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/magnetometer/hmc5843.c | 24 +++++++-----------------
 1 file changed, 7 insertions(+), 17 deletions(-)

diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index 67c1ce76362b..c7c5e82bcf31 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -643,11 +643,9 @@ static int hmc5843_probe(struct i2c_client *client,
 	struct iio_dev *indio_dev;
 	int err = 0;
 
-	indio_dev = iio_device_alloc(sizeof(*data));
-	if (indio_dev == NULL) {
-		err = -ENOMEM;
-		goto exit;
-	}
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+	if (indio_dev == NULL)
+		return -ENOMEM;
 
 	/* default settings at probe */
 	data = iio_priv(indio_dev);
@@ -665,24 +663,16 @@ static int hmc5843_probe(struct i2c_client *client,
 
 	err = iio_device_register(indio_dev);
 	if (err)
-		goto exit_free2;
+		return err;
 
 	return 0;
-
-exit_free2:
-	iio_device_free(indio_dev);
-exit:
-	return err;
 }
 
 static int hmc5843_remove(struct i2c_client *client)
 {
-	struct iio_dev *indio_dev = i2c_get_clientdata(client);
-
-	iio_device_unregister(indio_dev);
+	iio_device_unregister(i2c_get_clientdata(client));
 	 /*  sleep mode to save power */
 	hmc5843_configure(client, HMC5843_MODE_SLEEP);
-	iio_device_free(indio_dev);
 
 	return 0;
 }
@@ -691,14 +681,14 @@ static int hmc5843_remove(struct i2c_client *client)
 static int hmc5843_suspend(struct device *dev)
 {
 	hmc5843_configure(to_i2c_client(dev), HMC5843_MODE_SLEEP);
+
 	return 0;
 }
 
 static int hmc5843_resume(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
-	struct iio_dev *indio_dev = i2c_get_clientdata(client);
-	struct hmc5843_data *data = iio_priv(indio_dev);
+	struct hmc5843_data *data = iio_priv(i2c_get_clientdata(client));
 
 	hmc5843_configure(client, data->operating_mode);
 
-- 
cgit 


From f0bbea9981780e767c90955f47615e6f7382746f Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Sun, 8 Sep 2013 17:55:32 +0300
Subject: ath10k: add BMI log level

Also clean BMI log messages and add few more.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/bmi.c   | 42 +++++++++++++++++++++------------
 drivers/net/wireless/ath/ath10k/debug.h |  1 +
 2 files changed, 28 insertions(+), 15 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/bmi.c b/drivers/net/wireless/ath/ath10k/bmi.c
index 744da6d1c405..a1f099628850 100644
--- a/drivers/net/wireless/ath/ath10k/bmi.c
+++ b/drivers/net/wireless/ath/ath10k/bmi.c
@@ -22,7 +22,8 @@
 
 void ath10k_bmi_start(struct ath10k *ar)
 {
-	ath10k_dbg(ATH10K_DBG_CORE, "BMI started\n");
+	ath10k_dbg(ATH10K_DBG_BMI, "bmi start\n");
+
 	ar->bmi.done_sent = false;
 }
 
@@ -32,8 +33,10 @@ int ath10k_bmi_done(struct ath10k *ar)
 	u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.done);
 	int ret;
 
+	ath10k_dbg(ATH10K_DBG_BMI, "bmi done\n");
+
 	if (ar->bmi.done_sent) {
-		ath10k_dbg(ATH10K_DBG_CORE, "%s skipped\n", __func__);
+		ath10k_dbg(ATH10K_DBG_BMI, "bmi skipped\n");
 		return 0;
 	}
 
@@ -46,7 +49,6 @@ int ath10k_bmi_done(struct ath10k *ar)
 		return ret;
 	}
 
-	ath10k_dbg(ATH10K_DBG_CORE, "BMI done\n");
 	return 0;
 }
 
@@ -59,6 +61,8 @@ int ath10k_bmi_get_target_info(struct ath10k *ar,
 	u32 resplen = sizeof(resp.get_target_info);
 	int ret;
 
+	ath10k_dbg(ATH10K_DBG_BMI, "bmi get target info\n");
+
 	if (ar->bmi.done_sent) {
 		ath10k_warn("BMI Get Target Info Command disallowed\n");
 		return -EBUSY;
@@ -80,6 +84,7 @@ int ath10k_bmi_get_target_info(struct ath10k *ar,
 
 	target_info->version = __le32_to_cpu(resp.get_target_info.version);
 	target_info->type    = __le32_to_cpu(resp.get_target_info.type);
+
 	return 0;
 }
 
@@ -92,15 +97,14 @@ int ath10k_bmi_read_memory(struct ath10k *ar,
 	u32 rxlen;
 	int ret;
 
+	ath10k_dbg(ATH10K_DBG_BMI, "bmi read address 0x%x length %d\n",
+		   address, length);
+
 	if (ar->bmi.done_sent) {
 		ath10k_warn("command disallowed\n");
 		return -EBUSY;
 	}
 
-	ath10k_dbg(ATH10K_DBG_CORE,
-		   "%s: (device: 0x%p, address: 0x%x, length: %d)\n",
-		   __func__, ar, address, length);
-
 	while (length) {
 		rxlen = min_t(u32, length, BMI_MAX_DATA_SIZE);
 
@@ -133,15 +137,14 @@ int ath10k_bmi_write_memory(struct ath10k *ar,
 	u32 txlen;
 	int ret;
 
+	ath10k_dbg(ATH10K_DBG_BMI, "bmi write address 0x%x length %d\n",
+		   address, length);
+
 	if (ar->bmi.done_sent) {
 		ath10k_warn("command disallowed\n");
 		return -EBUSY;
 	}
 
-	ath10k_dbg(ATH10K_DBG_CORE,
-		   "%s: (device: 0x%p, address: 0x%x, length: %d)\n",
-		   __func__, ar, address, length);
-
 	while (length) {
 		txlen = min(length, BMI_MAX_DATA_SIZE - hdrlen);
 
@@ -180,15 +183,14 @@ int ath10k_bmi_execute(struct ath10k *ar, u32 address, u32 *param)
 	u32 resplen = sizeof(resp.execute);
 	int ret;
 
+	ath10k_dbg(ATH10K_DBG_BMI, "bmi execute address 0x%x param 0x%x\n",
+		   address, *param);
+
 	if (ar->bmi.done_sent) {
 		ath10k_warn("command disallowed\n");
 		return -EBUSY;
 	}
 
-	ath10k_dbg(ATH10K_DBG_CORE,
-		   "%s: (device: 0x%p, address: 0x%x, param: %d)\n",
-		   __func__, ar, address, *param);
-
 	cmd.id            = __cpu_to_le32(BMI_EXECUTE);
 	cmd.execute.addr  = __cpu_to_le32(address);
 	cmd.execute.param = __cpu_to_le32(*param);
@@ -216,6 +218,9 @@ int ath10k_bmi_lz_data(struct ath10k *ar, const void *buffer, u32 length)
 	u32 txlen;
 	int ret;
 
+	ath10k_dbg(ATH10K_DBG_BMI, "bmi lz data buffer 0x%p length %d\n",
+		   buffer, length);
+
 	if (ar->bmi.done_sent) {
 		ath10k_warn("command disallowed\n");
 		return -EBUSY;
@@ -250,6 +255,9 @@ int ath10k_bmi_lz_stream_start(struct ath10k *ar, u32 address)
 	u32 cmdlen = sizeof(cmd.id) + sizeof(cmd.lz_start);
 	int ret;
 
+	ath10k_dbg(ATH10K_DBG_BMI, "bmi lz stream start address 0x%x\n",
+		   address);
+
 	if (ar->bmi.done_sent) {
 		ath10k_warn("command disallowed\n");
 		return -EBUSY;
@@ -275,6 +283,10 @@ int ath10k_bmi_fast_download(struct ath10k *ar,
 	u32 trailer_len = length - head_len;
 	int ret;
 
+	ath10k_dbg(ATH10K_DBG_BMI,
+		   "bmi fast download address 0x%x buffer 0x%p length %d\n",
+		   address, buffer, length);
+
 	ret = ath10k_bmi_lz_stream_start(ar, address);
 	if (ret)
 		return ret;
diff --git a/drivers/net/wireless/ath/ath10k/debug.h b/drivers/net/wireless/ath/ath10k/debug.h
index 376a56b093a7..e40e155abd87 100644
--- a/drivers/net/wireless/ath/ath10k/debug.h
+++ b/drivers/net/wireless/ath/ath10k/debug.h
@@ -32,6 +32,7 @@ enum ath10k_debug_mask {
 	ATH10K_DBG_HTT_DUMP	= 0x00000080,
 	ATH10K_DBG_MGMT		= 0x00000100,
 	ATH10K_DBG_DATA		= 0x00000200,
+	ATH10K_DBG_BMI		= 0x00000400,
 	ATH10K_DBG_ANY		= 0xffffffff,
 };
 
-- 
cgit 


From b52b7688ac85819c9c99bfe0250913fd0053e665 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Sun, 8 Sep 2013 17:55:38 +0300
Subject: ath10k: rename ATH10K_DBG_CORE to BOOT

core.c mostly deals with driver and firmware starting related
actions. And we can use the boot level also in other components,
like PCI and HTT.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.c  | 6 +++---
 drivers/net/wireless/ath/ath10k/debug.h | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 8a688393b380..0ed60fd34b7f 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -53,7 +53,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 
 static void ath10k_send_suspend_complete(struct ath10k *ar)
 {
-	ath10k_dbg(ATH10K_DBG_CORE, "%s\n", __func__);
+	ath10k_dbg(ATH10K_DBG_BOOT, "%s\n", __func__);
 
 	ar->is_target_paused = true;
 	wake_up(&ar->event_queue);
@@ -101,7 +101,7 @@ static int ath10k_init_connect_htc(struct ath10k *ar)
 		goto timeout;
 	}
 
-	ath10k_dbg(ATH10K_DBG_CORE, "core wmi ready\n");
+	ath10k_dbg(ATH10K_DBG_BOOT, "core wmi ready\n");
 	return 0;
 
 timeout:
@@ -203,7 +203,7 @@ static int ath10k_push_board_ext_data(struct ath10k *ar,
 		return ret;
 	}
 
-	ath10k_dbg(ATH10K_DBG_CORE,
+	ath10k_dbg(ATH10K_DBG_BOOT,
 		   "ath10k: Board extended Data download addr: 0x%x\n",
 		   board_ext_data_addr);
 
diff --git a/drivers/net/wireless/ath/ath10k/debug.h b/drivers/net/wireless/ath/ath10k/debug.h
index e40e155abd87..fa581486626f 100644
--- a/drivers/net/wireless/ath/ath10k/debug.h
+++ b/drivers/net/wireless/ath/ath10k/debug.h
@@ -27,7 +27,7 @@ enum ath10k_debug_mask {
 	ATH10K_DBG_HTC		= 0x00000004,
 	ATH10K_DBG_HTT		= 0x00000008,
 	ATH10K_DBG_MAC		= 0x00000010,
-	ATH10K_DBG_CORE		= 0x00000020,
+	ATH10K_DBG_BOOT		= 0x00000020,
 	ATH10K_DBG_PCI_DUMP	= 0x00000040,
 	ATH10K_DBG_HTT_DUMP	= 0x00000080,
 	ATH10K_DBG_MGMT		= 0x00000100,
-- 
cgit 


From effea9688dae6ac1073b9f086903ddda8dda0b5a Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Sun, 8 Sep 2013 17:55:44 +0300
Subject: ath10k: cleanup debug messages in core.c

Fix them to follow the general logging style in ath10k.

While at it, add print id chip_id to the debug log.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 0ed60fd34b7f..76906d5a082e 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -53,7 +53,7 @@ static const struct ath10k_hw_params ath10k_hw_params_list[] = {
 
 static void ath10k_send_suspend_complete(struct ath10k *ar)
 {
-	ath10k_dbg(ATH10K_DBG_BOOT, "%s\n", __func__);
+	ath10k_dbg(ATH10K_DBG_BOOT, "boot suspend complete\n");
 
 	ar->is_target_paused = true;
 	wake_up(&ar->event_queue);
@@ -101,7 +101,7 @@ static int ath10k_init_connect_htc(struct ath10k *ar)
 		goto timeout;
 	}
 
-	ath10k_dbg(ATH10K_DBG_BOOT, "core wmi ready\n");
+	ath10k_dbg(ATH10K_DBG_BOOT, "boot wmi ready\n");
 	return 0;
 
 timeout:
@@ -204,7 +204,7 @@ static int ath10k_push_board_ext_data(struct ath10k *ar,
 	}
 
 	ath10k_dbg(ATH10K_DBG_BOOT,
-		   "ath10k: Board extended Data download addr: 0x%x\n",
+		   "boot push board extended data addr 0x%x\n",
 		   board_ext_data_addr);
 
 	if (board_ext_data_addr == 0)
@@ -722,6 +722,9 @@ static int ath10k_core_check_chip_id(struct ath10k *ar)
 {
 	u32 hw_revision = MS(ar->chip_id, SOC_CHIP_ID_REV);
 
+	ath10k_dbg(ATH10K_DBG_BOOT, "boot chip_id 0x%08x hw_revision 0x%x\n",
+		   ar->chip_id, hw_revision);
+
 	/* Check that we are not using hw1.0 (some of them have same pci id
 	 * as hw2.0) before doing anything else as ath10k crashes horribly
 	 * due to missing hw1.0 workarounds. */
-- 
cgit 


From 24cfade11e20255f21ae1ef50591208ab3fe6a4c Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Sun, 8 Sep 2013 17:55:50 +0300
Subject: ath10k: add boot debug messages to pci.c and ce.c

To unify all boot related debug messages into one debug
level.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/ce.c  | 8 ++++++++
 drivers/net/wireless/ath/ath10k/pci.c | 6 ++++--
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index 924b29ec7a74..4f8373c5a86c 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -973,6 +973,10 @@ static int ath10k_ce_init_src_ring(struct ath10k *ar,
 	ath10k_ce_src_ring_lowmark_set(ar, ctrl_addr, 0);
 	ath10k_ce_src_ring_highmark_set(ar, ctrl_addr, nentries);
 
+	ath10k_dbg(ATH10K_DBG_BOOT,
+		   "boot ce src ring id %d entries %d base_addr %p\n",
+		   ce_id, nentries, src_ring->base_addr_owner_space);
+
 	return 0;
 }
 
@@ -1054,6 +1058,10 @@ static int ath10k_ce_init_dest_ring(struct ath10k *ar,
 	ath10k_ce_dest_ring_lowmark_set(ar, ctrl_addr, 0);
 	ath10k_ce_dest_ring_highmark_set(ar, ctrl_addr, nentries);
 
+	ath10k_dbg(ATH10K_DBG_BOOT,
+		   "boot ce dest ring id %d entries %d base_addr %p\n",
+		   ce_id, nentries, dest_ring->base_addr_owner_space);
+
 	return 0;
 }
 
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 0ad65a0f94ca..899a8c0c189c 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -2367,10 +2367,10 @@ static void ath10k_pci_dump_features(struct ath10k_pci *ar_pci)
 
 		switch (i) {
 		case ATH10K_PCI_FEATURE_MSI_X:
-			ath10k_dbg(ATH10K_DBG_PCI, "device supports MSI-X\n");
+			ath10k_dbg(ATH10K_DBG_BOOT, "device supports MSI-X\n");
 			break;
 		case ATH10K_PCI_FEATURE_SOC_POWER_SAVE:
-			ath10k_dbg(ATH10K_DBG_PCI, "QCA98XX SoC power save enabled\n");
+			ath10k_dbg(ATH10K_DBG_BOOT, "QCA98XX SoC power save enabled\n");
 			break;
 		}
 	}
@@ -2496,6 +2496,8 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
 
 	ath10k_do_pci_sleep(ar);
 
+	ath10k_dbg(ATH10K_DBG_BOOT, "boot pci_mem 0x%p\n", ar_pci->mem);
+
 	ret = ath10k_core_register(ar, chip_id);
 	if (ret) {
 		ath10k_err("could not register driver core (%d)\n", ret);
-- 
cgit 


From 42a2efbc578339f2e314703a818efaefb4b4af81 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Sun, 8 Sep 2013 17:55:56 +0300
Subject: ath10k: add boot debug messages to htc.c

To unify the boot debug level.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htc.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htc.c b/drivers/net/wireless/ath/ath10k/htc.c
index 7d445d3b849d..f03fd8d282dd 100644
--- a/drivers/net/wireless/ath/ath10k/htc.c
+++ b/drivers/net/wireless/ath/ath10k/htc.c
@@ -752,8 +752,8 @@ int ath10k_htc_connect_service(struct ath10k_htc *htc,
 	tx_alloc = ath10k_htc_get_credit_allocation(htc,
 						    conn_req->service_id);
 	if (!tx_alloc)
-		ath10k_dbg(ATH10K_DBG_HTC,
-			   "HTC Service %s does not allocate target credits\n",
+		ath10k_dbg(ATH10K_DBG_BOOT,
+			   "boot htc service %s does not allocate target credits\n",
 			   htc_service_name(conn_req->service_id));
 
 	skb = ath10k_htc_build_tx_ctrl_skb(htc->ar);
@@ -873,19 +873,19 @@ setup:
 	if (status)
 		return status;
 
-	ath10k_dbg(ATH10K_DBG_HTC,
-		   "HTC service: %s UL pipe: %d DL pipe: %d eid: %d ready\n",
+	ath10k_dbg(ATH10K_DBG_BOOT,
+		   "boot htc service '%s' ul pipe %d dl pipe %d eid %d ready\n",
 		   htc_service_name(ep->service_id), ep->ul_pipe_id,
 		   ep->dl_pipe_id, ep->eid);
 
-	ath10k_dbg(ATH10K_DBG_HTC,
-		   "EP %d UL polled: %d, DL polled: %d\n",
+	ath10k_dbg(ATH10K_DBG_BOOT,
+		   "boot htc ep %d ul polled %d dl polled %d\n",
 		   ep->eid, ep->ul_is_polled, ep->dl_is_polled);
 
 	if (disable_credit_flow_ctrl && ep->tx_credit_flow_enabled) {
 		ep->tx_credit_flow_enabled = false;
-		ath10k_dbg(ATH10K_DBG_HTC,
-			   "HTC service: %s eid: %d TX flow control disabled\n",
+		ath10k_dbg(ATH10K_DBG_BOOT,
+			   "boot htc service '%s' eid %d TX flow control disabled\n",
 			   htc_service_name(ep->service_id), assigned_eid);
 	}
 
-- 
cgit 


From aad0b65f5cb83ce0473367838a960f46577da8ac Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Sun, 8 Sep 2013 17:56:02 +0300
Subject: ath10k: add boot messages to htt.c

To unify the boot debug level.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt_rx.c | 2 +-
 drivers/net/wireless/ath/ath10k/htt_tx.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index af31d2f6c9a1..a39fbf4536c0 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -502,7 +502,7 @@ int ath10k_htt_rx_attach(struct ath10k_htt *htt)
 	if (__ath10k_htt_rx_ring_fill_n(htt, htt->rx_ring.fill_level))
 		goto err_fill_ring;
 
-	ath10k_dbg(ATH10K_DBG_HTT, "HTT RX ring size: %d, fill_level: %d\n",
+	ath10k_dbg(ATH10K_DBG_BOOT, "htt rx ring size %d fill_level %d\n",
 		   htt->rx_ring.size, htt->rx_ring.fill_level);
 	return 0;
 
diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c
index b6b142046d83..454812879604 100644
--- a/drivers/net/wireless/ath/ath10k/htt_tx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_tx.c
@@ -96,7 +96,7 @@ int ath10k_htt_tx_attach(struct ath10k_htt *htt)
 	htt->max_num_pending_tx = ath10k_hif_get_free_queue_number(htt->ar,
 								   pipe);
 
-	ath10k_dbg(ATH10K_DBG_HTT, "htt tx max num pending tx %d\n",
+	ath10k_dbg(ATH10K_DBG_BOOT, "htt tx max num pending tx %d\n",
 		   htt->max_num_pending_tx);
 
 	htt->pending_tx = kzalloc(sizeof(*htt->pending_tx) *
-- 
cgit 


From 60c3daa88873df9c90465c09fba0b7985f9db939 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Sun, 8 Sep 2013 17:56:07 +0300
Subject: ath10k: clean mac.c debug messages

Just to unify with the rest of debug messages. Minimal functional changes,
only major ones are removal of the awkward "else" style in debug
messages.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c | 180 +++++++++++++++++-----------------
 1 file changed, 92 insertions(+), 88 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 248248b5c196..b8c81bbb8572 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -604,7 +604,7 @@ static int ath10k_monitor_create(struct ath10k *ar)
 		goto vdev_fail;
 	}
 
-	ath10k_dbg(ATH10K_DBG_MAC, "Monitor interface created, vdev id: %d\n",
+	ath10k_dbg(ATH10K_DBG_MAC, "mac monitor vdev %d created\n",
 		   ar->monitor_vdev_id);
 
 	ar->monitor_present = true;
@@ -636,7 +636,7 @@ static int ath10k_monitor_destroy(struct ath10k *ar)
 	ar->free_vdev_map |= 1 << (ar->monitor_vdev_id);
 	ar->monitor_present = false;
 
-	ath10k_dbg(ATH10K_DBG_MAC, "Monitor interface destroyed, vdev id: %d\n",
+	ath10k_dbg(ATH10K_DBG_MAC, "mac monitor vdev %d deleted\n",
 		   ar->monitor_vdev_id);
 	return ret;
 }
@@ -665,7 +665,7 @@ static void ath10k_control_beaconing(struct ath10k_vif *arvif,
 			    arvif->vdev_id);
 		return;
 	}
-	ath10k_dbg(ATH10K_DBG_MAC, "VDEV: %d up\n", arvif->vdev_id);
+	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d up\n", arvif->vdev_id);
 }
 
 static void ath10k_control_ibss(struct ath10k_vif *arvif,
@@ -749,14 +749,14 @@ static void ath10k_ps_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
 		psmode = WMI_STA_PS_MODE_DISABLED;
 	}
 
+	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d psmode %s\n",
+		   arvif->vdev_id, psmode ? "enable" : "disable");
+
 	ar_iter->ret = ath10k_wmi_set_psmode(ar_iter->ar, arvif->vdev_id,
 					     psmode);
 	if (ar_iter->ret)
 		ath10k_warn("Failed to set PS Mode: %d for VDEV: %d\n",
 			    psmode, arvif->vdev_id);
-	else
-		ath10k_dbg(ATH10K_DBG_MAC, "Set PS Mode: %d for VDEV: %d\n",
-			   psmode, arvif->vdev_id);
 }
 
 /**********************/
@@ -946,7 +946,8 @@ static void ath10k_peer_assoc_h_ht(struct ath10k *ar,
 	arg->peer_ht_rates.num_rates = n;
 	arg->peer_num_spatial_streams = max((n+7) / 8, 1);
 
-	ath10k_dbg(ATH10K_DBG_MAC, "mcs cnt %d nss %d\n",
+	ath10k_dbg(ATH10K_DBG_MAC, "mac ht peer %pM mcs cnt %d nss %d\n",
+		   arg->addr,
 		   arg->peer_ht_rates.num_rates,
 		   arg->peer_num_spatial_streams);
 }
@@ -966,7 +967,7 @@ static void ath10k_peer_assoc_h_qos_ap(struct ath10k *ar,
 		arg->peer_flags |= WMI_PEER_QOS;
 
 	if (sta->wme && sta->uapsd_queues) {
-		ath10k_dbg(ATH10K_DBG_MAC, "uapsd_queues: 0x%X, max_sp: %d\n",
+		ath10k_dbg(ATH10K_DBG_MAC, "mac uapsd_queues 0x%x max_sp %d\n",
 			   sta->uapsd_queues, sta->max_sp);
 
 		arg->peer_flags |= WMI_PEER_APSD;
@@ -1045,7 +1046,8 @@ static void ath10k_peer_assoc_h_vht(struct ath10k *ar,
 	arg->peer_vht_rates.tx_mcs_set =
 		__le16_to_cpu(vht_cap->vht_mcs.tx_mcs_map);
 
-	ath10k_dbg(ATH10K_DBG_MAC, "mac vht peer\n");
+	ath10k_dbg(ATH10K_DBG_MAC, "mac vht peer %pM max_mpdu %d flags 0x%x\n",
+		   sta->addr, arg->peer_max_mpdu, arg->peer_flags);
 }
 
 static void ath10k_peer_assoc_h_qos(struct ath10k *ar,
@@ -1102,6 +1104,9 @@ static void ath10k_peer_assoc_h_phymode(struct ath10k *ar,
 		break;
 	}
 
+	ath10k_dbg(ATH10K_DBG_MAC, "mac peer %pM phymode %d\n",
+		   sta->addr, phymode);
+
 	arg->peer_phymode = phymode;
 	WARN_ON(phymode == MODE_UNKNOWN);
 }
@@ -1159,15 +1164,15 @@ static void ath10k_bss_assoc(struct ieee80211_hw *hw,
 
 	rcu_read_unlock();
 
+	ath10k_dbg(ATH10K_DBG_MAC,
+		   "mac vdev %d up (associated) bssid %pM aid %d\n",
+		   arvif->vdev_id, bss_conf->bssid, bss_conf->aid);
+
 	ret = ath10k_wmi_vdev_up(ar, arvif->vdev_id, bss_conf->aid,
 				 bss_conf->bssid);
 	if (ret)
 		ath10k_warn("VDEV: %d up failed: ret %d\n",
 			    arvif->vdev_id, ret);
-	else
-		ath10k_dbg(ATH10K_DBG_MAC,
-			   "VDEV: %d associated, BSSID: %pM, AID: %d\n",
-			   arvif->vdev_id, bss_conf->bssid, bss_conf->aid);
 }
 
 /*
@@ -1188,10 +1193,11 @@ static void ath10k_bss_disassoc(struct ieee80211_hw *hw,
 	 * No idea why this happens, even though VDEV-DOWN is supposed
 	 * to be analogous to link down, so just stop the VDEV.
 	 */
+	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d stop (disassociated\n",
+		   arvif->vdev_id);
+
+	/* FIXME: check return value */
 	ret = ath10k_vdev_stop(arvif);
-	if (!ret)
-		ath10k_dbg(ATH10K_DBG_MAC, "VDEV: %d stopped\n",
-			   arvif->vdev_id);
 
 	/*
 	 * If we don't call VDEV-DOWN after VDEV-STOP FW will remain active and
@@ -1200,10 +1206,10 @@ static void ath10k_bss_disassoc(struct ieee80211_hw *hw,
 	 * interfaces as it expects there is no rx when no interface is
 	 * running.
 	 */
+	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d down\n", arvif->vdev_id);
+
+	/* FIXME: why don't we print error if wmi call fails? */
 	ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
-	if (ret)
-		ath10k_dbg(ATH10K_DBG_MAC, "VDEV: %d ath10k_wmi_vdev_down failed (%d)\n",
-			   arvif->vdev_id, ret);
 
 	ath10k_wmi_flush_tx(ar);
 
@@ -1330,8 +1336,8 @@ static int ath10k_update_channel_list(struct ath10k *ar)
 				continue;
 
 			ath10k_dbg(ATH10K_DBG_WMI,
-				   "%s: [%zd/%d] freq %d maxpower %d regpower %d antenna %d mode %d\n",
-				   __func__, ch - arg.channels, arg.n_channels,
+				   "mac channel [%zd/%d] freq %d maxpower %d regpower %d antenna %d mode %d\n",
+				    ch - arg.channels, arg.n_channels,
 				   ch->freq, ch->max_power, ch->max_reg_power,
 				   ch->max_antenna_gain, ch->mode);
 
@@ -1431,7 +1437,8 @@ static void ath10k_tx_h_update_wep_key(struct sk_buff *skb)
 	if (key->keyidx == arvif->def_wep_key_index)
 		return;
 
-	ath10k_dbg(ATH10K_DBG_MAC, "new wep keyidx will be %d\n", key->keyidx);
+	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d keyidx %d\n",
+		   arvif->vdev_id, key->keyidx);
 
 	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
 					WMI_VDEV_PARAM_DEF_KEYID,
@@ -1534,7 +1541,7 @@ void ath10k_offchan_tx_work(struct work_struct *work)
 
 		mutex_lock(&ar->conf_mutex);
 
-		ath10k_dbg(ATH10K_DBG_MAC, "processing offchannel skb %p\n",
+		ath10k_dbg(ATH10K_DBG_MAC, "mac offchannel skb %p\n",
 			   skb);
 
 		hdr = (struct ieee80211_hdr *)skb->data;
@@ -1546,6 +1553,7 @@ void ath10k_offchan_tx_work(struct work_struct *work)
 		spin_unlock_bh(&ar->data_lock);
 
 		if (peer)
+			/* FIXME: should this use ath10k_warn()? */
 			ath10k_dbg(ATH10K_DBG_MAC, "peer %pM on vdev %d already present\n",
 				   peer_addr, vdev_id);
 
@@ -1886,7 +1894,7 @@ static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
 	mutex_lock(&ar->conf_mutex);
 
 	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
-		ath10k_dbg(ATH10K_DBG_MAC, "Config channel %d mhz\n",
+		ath10k_dbg(ATH10K_DBG_MAC, "mac config channel %d mhz\n",
 			   conf->chandef.chan->center_freq);
 		spin_lock_bh(&ar->data_lock);
 		ar->rx_channel = conf->chandef.chan;
@@ -1975,7 +1983,7 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 		break;
 	}
 
-	ath10k_dbg(ATH10K_DBG_MAC, "Add interface: id %d type %d subtype %d\n",
+	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev create %d (add interface) type %d subtype %d\n",
 		   arvif->vdev_id, arvif->vdev_type, arvif->vdev_subtype);
 
 	ret = ath10k_wmi_vdev_create(ar, arvif->vdev_id, arvif->vdev_type,
@@ -2054,8 +2062,6 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
 
 	mutex_lock(&ar->conf_mutex);
 
-	ath10k_dbg(ATH10K_DBG_MAC, "Remove interface: id %d\n", arvif->vdev_id);
-
 	ar->free_vdev_map |= 1 << (arvif->vdev_id);
 
 	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
@@ -2066,6 +2072,9 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
 		kfree(arvif->u.ap.noa_data);
 	}
 
+	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev delete %d (remove interface)\n",
+		   arvif->vdev_id);
+
 	ret = ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
 	if (ret)
 		ath10k_warn("WMI vdev delete failed: %d\n", ret);
@@ -2107,18 +2116,20 @@ static void ath10k_configure_filter(struct ieee80211_hw *hw,
 
 	if ((ar->filter_flags & FIF_PROMISC_IN_BSS) &&
 	    !ar->monitor_enabled) {
+		ath10k_dbg(ATH10K_DBG_MAC, "mac monitor %d start\n",
+			   ar->monitor_vdev_id);
+
 		ret = ath10k_monitor_start(ar, ar->monitor_vdev_id);
 		if (ret)
 			ath10k_warn("Unable to start monitor mode\n");
-		else
-			ath10k_dbg(ATH10K_DBG_MAC, "Monitor mode started\n");
 	} else if (!(ar->filter_flags & FIF_PROMISC_IN_BSS) &&
 		   ar->monitor_enabled) {
+		ath10k_dbg(ATH10K_DBG_MAC, "mac monitor %d stop\n",
+			   ar->monitor_vdev_id);
+
 		ret = ath10k_monitor_stop(ar);
 		if (ret)
 			ath10k_warn("Unable to stop monitor mode\n");
-		else
-			ath10k_dbg(ATH10K_DBG_MAC, "Monitor mode stopped\n");
 	}
 
 	mutex_unlock(&ar->conf_mutex);
@@ -2143,41 +2154,41 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
 						WMI_VDEV_PARAM_BEACON_INTERVAL,
 						arvif->beacon_interval);
+		ath10k_dbg(ATH10K_DBG_MAC,
+			   "mac vdev %d beacon_interval %d\n",
+			   arvif->vdev_id, arvif->beacon_interval);
+
 		if (ret)
 			ath10k_warn("Failed to set beacon interval for VDEV: %d\n",
 				    arvif->vdev_id);
-		else
-			ath10k_dbg(ATH10K_DBG_MAC,
-				   "Beacon interval: %d set for VDEV: %d\n",
-				   arvif->beacon_interval, arvif->vdev_id);
 	}
 
 	if (changed & BSS_CHANGED_BEACON) {
+		ath10k_dbg(ATH10K_DBG_MAC,
+			   "vdev %d set beacon tx mode to staggered\n",
+			   arvif->vdev_id);
+
 		ret = ath10k_wmi_pdev_set_param(ar,
 						WMI_PDEV_PARAM_BEACON_TX_MODE,
 						WMI_BEACON_STAGGERED_MODE);
 		if (ret)
 			ath10k_warn("Failed to set beacon mode for VDEV: %d\n",
 				    arvif->vdev_id);
-		else
-			ath10k_dbg(ATH10K_DBG_MAC,
-				   "Set staggered beacon mode for VDEV: %d\n",
-				   arvif->vdev_id);
 	}
 
 	if (changed & BSS_CHANGED_BEACON_INFO) {
 		arvif->dtim_period = info->dtim_period;
 
+		ath10k_dbg(ATH10K_DBG_MAC,
+			   "mac vdev %d dtim_period %d\n",
+			   arvif->vdev_id, arvif->dtim_period);
+
 		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
 						WMI_VDEV_PARAM_DTIM_PERIOD,
 						arvif->dtim_period);
 		if (ret)
 			ath10k_warn("Failed to set dtim period for VDEV: %d\n",
 				    arvif->vdev_id);
-		else
-			ath10k_dbg(ATH10K_DBG_MAC,
-				   "Set dtim period: %d for VDEV: %d\n",
-				   arvif->dtim_period, arvif->vdev_id);
 	}
 
 	if (changed & BSS_CHANGED_SSID &&
@@ -2190,16 +2201,15 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 
 	if (changed & BSS_CHANGED_BSSID) {
 		if (!is_zero_ether_addr(info->bssid)) {
+			ath10k_dbg(ATH10K_DBG_MAC,
+				   "mac vdev %d create peer %pM\n",
+				   arvif->vdev_id, info->bssid);
+
 			ret = ath10k_peer_create(ar, arvif->vdev_id,
 						 info->bssid);
 			if (ret)
 				ath10k_warn("Failed to add peer: %pM for VDEV: %d\n",
 					    info->bssid, arvif->vdev_id);
-			else
-				ath10k_dbg(ATH10K_DBG_MAC,
-					   "Added peer: %pM for VDEV: %d\n",
-					   info->bssid, arvif->vdev_id);
-
 
 			if (vif->type == NL80211_IFTYPE_STATION) {
 				/*
@@ -2209,11 +2219,12 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 				memcpy(arvif->u.sta.bssid, info->bssid,
 				       ETH_ALEN);
 
+				ath10k_dbg(ATH10K_DBG_MAC,
+					   "mac vdev %d start %pM\n",
+					   arvif->vdev_id, info->bssid);
+
+				/* FIXME: check return value */
 				ret = ath10k_vdev_start(arvif);
-				if (!ret)
-					ath10k_dbg(ATH10K_DBG_MAC,
-						   "VDEV: %d started with BSSID: %pM\n",
-						   arvif->vdev_id, info->bssid);
 			}
 
 			/*
@@ -2237,16 +2248,15 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 		else
 			cts_prot = 0;
 
+		ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d cts_prot %d\n",
+			   arvif->vdev_id, cts_prot);
+
 		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
 						WMI_VDEV_PARAM_ENABLE_RTSCTS,
 						cts_prot);
 		if (ret)
 			ath10k_warn("Failed to set CTS prot for VDEV: %d\n",
 				    arvif->vdev_id);
-		else
-			ath10k_dbg(ATH10K_DBG_MAC,
-				   "Set CTS prot: %d for VDEV: %d\n",
-				   cts_prot, arvif->vdev_id);
 	}
 
 	if (changed & BSS_CHANGED_ERP_SLOT) {
@@ -2257,16 +2267,15 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 		else
 			slottime = WMI_VDEV_SLOT_TIME_LONG; /* 20us */
 
+		ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d slot_time %d\n",
+			   arvif->vdev_id, slottime);
+
 		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
 						WMI_VDEV_PARAM_SLOT_TIME,
 						slottime);
 		if (ret)
 			ath10k_warn("Failed to set erp slot for VDEV: %d\n",
 				    arvif->vdev_id);
-		else
-			ath10k_dbg(ATH10K_DBG_MAC,
-				   "Set slottime: %d for VDEV: %d\n",
-				   slottime, arvif->vdev_id);
 	}
 
 	if (changed & BSS_CHANGED_ERP_PREAMBLE) {
@@ -2276,16 +2285,16 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 		else
 			preamble = WMI_VDEV_PREAMBLE_LONG;
 
+		ath10k_dbg(ATH10K_DBG_MAC,
+			   "mac vdev %d preamble %dn",
+			   arvif->vdev_id, preamble);
+
 		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
 						WMI_VDEV_PARAM_PREAMBLE,
 						preamble);
 		if (ret)
 			ath10k_warn("Failed to set preamble for VDEV: %d\n",
 				    arvif->vdev_id);
-		else
-			ath10k_dbg(ATH10K_DBG_MAC,
-				   "Set preamble: %d for VDEV: %d\n",
-				   preamble, arvif->vdev_id);
 	}
 
 	if (changed & BSS_CHANGED_ASSOC) {
@@ -2476,27 +2485,26 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
 		/*
 		 * New station addition.
 		 */
+		ath10k_dbg(ATH10K_DBG_MAC,
+			   "mac vdev %d peer create %pM (new sta)\n",
+			   arvif->vdev_id, sta->addr);
+
 		ret = ath10k_peer_create(ar, arvif->vdev_id, sta->addr);
 		if (ret)
 			ath10k_warn("Failed to add peer: %pM for VDEV: %d\n",
 				    sta->addr, arvif->vdev_id);
-		else
-			ath10k_dbg(ATH10K_DBG_MAC,
-				   "Added peer: %pM for VDEV: %d\n",
-				   sta->addr, arvif->vdev_id);
 	} else if ((old_state == IEEE80211_STA_NONE &&
 		    new_state == IEEE80211_STA_NOTEXIST)) {
 		/*
 		 * Existing station deletion.
 		 */
+		ath10k_dbg(ATH10K_DBG_MAC,
+			   "mac vdev %d peer delete %pM (sta gone)\n",
+			   arvif->vdev_id, sta->addr);
 		ret = ath10k_peer_delete(ar, arvif->vdev_id, sta->addr);
 		if (ret)
 			ath10k_warn("Failed to delete peer: %pM for VDEV: %d\n",
 				    sta->addr, arvif->vdev_id);
-		else
-			ath10k_dbg(ATH10K_DBG_MAC,
-				   "Removed peer: %pM for VDEV: %d\n",
-				   sta->addr, arvif->vdev_id);
 
 		if (vif->type == NL80211_IFTYPE_STATION)
 			ath10k_bss_disassoc(hw, vif);
@@ -2507,14 +2515,13 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
 		/*
 		 * New association.
 		 */
+		ath10k_dbg(ATH10K_DBG_MAC, "mac sta %pM associated\n",
+			   sta->addr);
+
 		ret = ath10k_station_assoc(ar, arvif, sta);
 		if (ret)
 			ath10k_warn("Failed to associate station: %pM\n",
 				    sta->addr);
-		else
-			ath10k_dbg(ATH10K_DBG_MAC,
-				   "Station %pM moved to assoc state\n",
-				   sta->addr);
 	} else if (old_state == IEEE80211_STA_ASSOC &&
 		   new_state == IEEE80211_STA_AUTH &&
 		   (vif->type == NL80211_IFTYPE_AP ||
@@ -2522,14 +2529,13 @@ static int ath10k_sta_state(struct ieee80211_hw *hw,
 		/*
 		 * Disassociation.
 		 */
+		ath10k_dbg(ATH10K_DBG_MAC, "mac sta %pM disassociated\n",
+			   sta->addr);
+
 		ret = ath10k_station_disassoc(ar, arvif, sta);
 		if (ret)
 			ath10k_warn("Failed to disassociate station: %pM\n",
 				    sta->addr);
-		else
-			ath10k_dbg(ATH10K_DBG_MAC,
-				   "Station %pM moved to disassociated state\n",
-				   sta->addr);
 	}
 
 	mutex_unlock(&ar->conf_mutex);
@@ -2749,14 +2755,13 @@ static void ath10k_set_rts_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
 	if (ar_iter->ar->state == ATH10K_STATE_RESTARTED)
 		return;
 
+	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d rts_threshold %d\n",
+		   arvif->vdev_id, rts);
+
 	ar_iter->ret = ath10k_mac_set_rts(arvif, rts);
 	if (ar_iter->ret)
 		ath10k_warn("Failed to set RTS threshold for VDEV: %d\n",
 			    arvif->vdev_id);
-	else
-		ath10k_dbg(ATH10K_DBG_MAC,
-			   "Set RTS threshold: %d for VDEV: %d\n",
-			   rts, arvif->vdev_id);
 }
 
 static int ath10k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
@@ -2791,14 +2796,13 @@ static void ath10k_set_frag_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
 	if (ar_iter->ar->state == ATH10K_STATE_RESTARTED)
 		return;
 
+	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d fragmentation_threshold %d\n",
+		   arvif->vdev_id, frag);
+
 	ar_iter->ret = ath10k_mac_set_frag(arvif, frag);
 	if (ar_iter->ret)
 		ath10k_warn("Failed to set frag threshold for VDEV: %d\n",
 			    arvif->vdev_id);
-	else
-		ath10k_dbg(ATH10K_DBG_MAC,
-			   "Set frag threshold: %d for VDEV: %d\n",
-			   frag, arvif->vdev_id);
 }
 
 static int ath10k_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
-- 
cgit 


From 38a1d47ed5cf4b55f494be44940a1fda3281feab Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Sun, 8 Sep 2013 17:56:14 +0300
Subject: ath10k: print phymode as a string

Makes it easier to read debug logs.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c |  9 ++++++--
 drivers/net/wireless/ath/ath10k/wmi.h | 42 +++++++++++++++++++++++++++++++++++
 2 files changed, 49 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index b8c81bbb8572..2b118569030f 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -460,6 +460,11 @@ static int ath10k_vdev_start(struct ath10k_vif *arvif)
 		arg.ssid_len = arvif->vif->bss_conf.ssid_len;
 	}
 
+	ath10k_dbg(ATH10K_DBG_MAC,
+		   "mac vdev %d start center_freq %d phymode %s\n",
+		   arg.vdev_id, arg.channel.freq,
+		   ath10k_wmi_phymode_str(arg.channel.mode));
+
 	ret = ath10k_wmi_vdev_start(ar, &arg);
 	if (ret) {
 		ath10k_warn("WMI vdev start failed: ret %d\n", ret);
@@ -1104,8 +1109,8 @@ static void ath10k_peer_assoc_h_phymode(struct ath10k *ar,
 		break;
 	}
 
-	ath10k_dbg(ATH10K_DBG_MAC, "mac peer %pM phymode %d\n",
-		   sta->addr, phymode);
+	ath10k_dbg(ATH10K_DBG_MAC, "mac peer %pM phymode %s\n",
+		   sta->addr, ath10k_wmi_phymode_str(phymode));
 
 	arg->peer_phymode = phymode;
 	WARN_ON(phymode == MODE_UNKNOWN);
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 40fcf05ecc57..ab46582d4eaa 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -508,6 +508,48 @@ enum wmi_phy_mode {
 	MODE_MAX        = 14
 };
 
+static inline const char *ath10k_wmi_phymode_str(enum wmi_phy_mode mode)
+{
+	switch (mode) {
+	case MODE_11A:
+		return "11a";
+	case MODE_11G:
+		return "11g";
+	case MODE_11B:
+		return "11b";
+	case MODE_11GONLY:
+		return "11gonly";
+	case MODE_11NA_HT20:
+		return "11na-ht20";
+	case MODE_11NG_HT20:
+		return "11ng-ht20";
+	case MODE_11NA_HT40:
+		return "11na-ht40";
+	case MODE_11NG_HT40:
+		return "11ng-ht40";
+	case MODE_11AC_VHT20:
+		return "11ac-vht20";
+	case MODE_11AC_VHT40:
+		return "11ac-vht40";
+	case MODE_11AC_VHT80:
+		return "11ac-vht80";
+	case MODE_11AC_VHT20_2G:
+		return "11ac-vht20-2g";
+	case MODE_11AC_VHT40_2G:
+		return "11ac-vht40-2g";
+	case MODE_11AC_VHT80_2G:
+		return "11ac-vht80-2g";
+	case MODE_UNKNOWN:
+		/* skip */
+		break;
+
+		/* no default handler to allow compiler to check that the
+		 * enum is fully handled */
+	};
+
+	return "<unknown>";
+}
+
 #define WMI_CHAN_LIST_TAG	0x1
 #define WMI_SSID_LIST_TAG	0x2
 #define WMI_BSSID_LIST_TAG	0x3
-- 
cgit 


From 7cc45e98e539ad98d8af57e4126aaac3e6b8f341 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Sun, 8 Sep 2013 18:19:55 +0300
Subject: ath10k: Calculate correct peer PHY mode for VHT

The peer PHY mode for 11ac operation needs to be determined
properly based on the channel bandwidth being used. Fix
this so that the proper mode is given to the firmware.

kvalo: earlier we used 11na-ht20 in STA mode for 11ac AP peer, this
patch changes that to 11ac-vht80. I didn't notice any change in
throughput in my tests, but nevertheless it's the right thing
to do.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 2b118569030f..8b9fb660519b 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1080,8 +1080,6 @@ static void ath10k_peer_assoc_h_phymode(struct ath10k *ar,
 {
 	enum wmi_phy_mode phymode = MODE_UNKNOWN;
 
-	/* FIXME: add VHT */
-
 	switch (ar->hw->conf.chandef.chan->band) {
 	case IEEE80211_BAND_2GHZ:
 		if (sta->ht_cap.ht_supported) {
@@ -1095,7 +1093,17 @@ static void ath10k_peer_assoc_h_phymode(struct ath10k *ar,
 
 		break;
 	case IEEE80211_BAND_5GHZ:
-		if (sta->ht_cap.ht_supported) {
+		/*
+		 * Check VHT first.
+		 */
+		if (sta->vht_cap.vht_supported) {
+			if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
+				phymode = MODE_11AC_VHT80;
+			else if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
+				phymode = MODE_11AC_VHT40;
+			else if (sta->bandwidth == IEEE80211_STA_RX_BW_20)
+				phymode = MODE_11AC_VHT20;
+		} else if (sta->ht_cap.ht_supported) {
 			if (sta->bandwidth == IEEE80211_STA_RX_BW_40)
 				phymode = MODE_11NA_HT40;
 			else
-- 
cgit 


From e9bb0aa39bce2f0a159c562c322c2d2746e6560d Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Sun, 8 Sep 2013 18:36:11 +0300
Subject: ath10k: delete struct ce_sendlist

struct ce_sendlist is useless as we always add just one buffer onto it.
And most importantly, it's ugly as it doesn't use skb properly.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/ce.c  | 48 ++++++-----------------------------
 drivers/net/wireless/ath/ath10k/ce.h  | 44 +++-----------------------------
 drivers/net/wireless/ath/ath10k/pci.c | 40 ++++++++++-------------------
 3 files changed, 25 insertions(+), 107 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index 4f8373c5a86c..834e29ea236c 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -338,33 +338,19 @@ int ath10k_ce_send(struct ath10k_ce_pipe *ce_state,
 	return ret;
 }
 
-void ath10k_ce_sendlist_buf_add(struct ce_sendlist *sendlist, u32 buffer,
-				unsigned int nbytes, u32 flags)
-{
-	unsigned int num_items = sendlist->num_items;
-	struct ce_sendlist_item *item;
-
-	item = &sendlist->item[num_items];
-	item->data = buffer;
-	item->u.nbytes = nbytes;
-	item->flags = flags;
-	sendlist->num_items++;
-}
-
 int ath10k_ce_sendlist_send(struct ath10k_ce_pipe *ce_state,
 			    void *per_transfer_context,
-			    struct ce_sendlist *sendlist,
-			    unsigned int transfer_id)
+			    unsigned int transfer_id,
+			    u32 paddr, unsigned int nbytes,
+			    u32 flags)
 {
 	struct ath10k_ce_ring *src_ring = ce_state->src_ring;
-	struct ce_sendlist_item *item;
 	struct ath10k *ar = ce_state->ar;
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 	unsigned int nentries_mask = src_ring->nentries_mask;
-	unsigned int num_items = sendlist->num_items;
 	unsigned int sw_index;
 	unsigned int write_index;
-	int i, delta, ret = -ENOMEM;
+	int delta, ret = -ENOMEM;
 
 	spin_lock_bh(&ar_pci->ce_lock);
 
@@ -373,30 +359,12 @@ int ath10k_ce_sendlist_send(struct ath10k_ce_pipe *ce_state,
 
 	delta = CE_RING_DELTA(nentries_mask, write_index, sw_index - 1);
 
-	if (delta >= num_items) {
-		/*
-		 * Handle all but the last item uniformly.
-		 */
-		for (i = 0; i < num_items - 1; i++) {
-			item = &sendlist->item[i];
-			ret = ath10k_ce_send_nolock(ce_state,
-						    CE_SENDLIST_ITEM_CTXT,
-						    (u32) item->data,
-						    item->u.nbytes, transfer_id,
-						    item->flags |
-						    CE_SEND_FLAG_GATHER);
-			if (ret)
-				ath10k_warn("CE send failed for item: %d\n", i);
-		}
-		/*
-		 * Provide valid context pointer for final item.
-		 */
-		item = &sendlist->item[i];
+	if (delta >= 1) {
 		ret = ath10k_ce_send_nolock(ce_state, per_transfer_context,
-					    (u32) item->data, item->u.nbytes,
-					    transfer_id, item->flags);
+					    paddr, nbytes,
+					    transfer_id, flags);
 		if (ret)
-			ath10k_warn("CE send failed for last item: %d\n", i);
+			ath10k_warn("CE send failed: %d\n", ret);
 	}
 
 	spin_unlock_bh(&ar_pci->ce_lock);
diff --git a/drivers/net/wireless/ath/ath10k/ce.h b/drivers/net/wireless/ath/ath10k/ce.h
index fb22361bde21..aec802868341 100644
--- a/drivers/net/wireless/ath/ath10k/ce.h
+++ b/drivers/net/wireless/ath/ath10k/ce.h
@@ -27,7 +27,6 @@
 
 /* Descriptor rings must be aligned to this boundary */
 #define CE_DESC_RING_ALIGN	8
-#define CE_SENDLIST_ITEMS_MAX	12
 #define CE_SEND_FLAG_GATHER	0x00010000
 
 /*
@@ -124,24 +123,6 @@ struct ath10k_ce_pipe {
 	struct ath10k_ce_ring *dest_ring;
 };
 
-struct ce_sendlist_item {
-	/* e.g. buffer or desc list */
-	dma_addr_t data;
-	union {
-		/* simple buffer */
-		unsigned int nbytes;
-		/* Rx descriptor list */
-		unsigned int ndesc;
-	} u;
-	/* externally-specified flags; OR-ed with internal flags */
-	u32 flags;
-};
-
-struct ce_sendlist {
-	unsigned int num_items;
-	struct ce_sendlist_item item[CE_SENDLIST_ITEMS_MAX];
-};
-
 /* Copy Engine settable attributes */
 struct ce_attr;
 
@@ -175,13 +156,6 @@ void ath10k_ce_send_cb_register(struct ath10k_ce_pipe *ce_state,
 				void (*send_cb)(struct ath10k_ce_pipe *),
 				int disable_interrupts);
 
-/* Append a simple buffer (address/length) to a sendlist. */
-void ath10k_ce_sendlist_buf_add(struct ce_sendlist *sendlist,
-				u32 buffer,
-				unsigned int nbytes,
-				/* OR-ed with internal flags */
-				u32 flags);
-
 /*
  * Queue a "sendlist" of buffers to be sent using gather to a single
  * anonymous destination buffer
@@ -193,10 +167,10 @@ void ath10k_ce_sendlist_buf_add(struct ce_sendlist *sendlist,
  * Implemenation note: Pushes multiple buffers with Gather to Source ring.
  */
 int ath10k_ce_sendlist_send(struct ath10k_ce_pipe *ce_state,
-			    void *per_transfer_send_context,
-			    struct ce_sendlist *sendlist,
-			    /* 14 bits */
-			    unsigned int transfer_id);
+			    void *per_transfer_context,
+			    unsigned int transfer_id,
+			    u32 paddr, unsigned int nbytes,
+			    u32 flags);
 
 /*==================Recv=======================*/
 
@@ -307,16 +281,6 @@ struct ce_attr {
 	unsigned int dest_nentries;
 };
 
-/*
- * When using sendlist_send to transfer multiple buffer fragments, the
- * transfer context of each fragment, except last one, will be filled
- * with CE_SENDLIST_ITEM_CTXT. ce_completed_send will return success for
- * each fragment done with send and the transfer context would be
- * CE_SENDLIST_ITEM_CTXT. Upper layer could use this to identify the
- * status of a send completion.
- */
-#define CE_SENDLIST_ITEM_CTXT	((void *)0xcecebeef)
-
 #define SR_BA_ADDRESS		0x0000
 #define SR_SIZE_ADDRESS		0x0004
 #define DR_BA_ADDRESS		0x0008
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 899a8c0c189c..ecaf21315244 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -626,17 +626,9 @@ static void ath10k_pci_ce_send_done(struct ath10k_ce_pipe *ce_state)
 	while (ath10k_ce_completed_send_next(ce_state, &transfer_context,
 					     &ce_data, &nbytes,
 					     &transfer_id) == 0) {
-		/*
-		 * For the send completion of an item in sendlist, just
-		 * increment num_sends_allowed. The upper layer callback will
-		 * be triggered when last fragment is done with send.
-		 */
-		if (transfer_context == CE_SENDLIST_ITEM_CTXT) {
-			spin_lock_bh(&pipe_info->pipe_lock);
-			pipe_info->num_sends_allowed++;
-			spin_unlock_bh(&pipe_info->pipe_lock);
-			continue;
-		}
+		spin_lock_bh(&pipe_info->pipe_lock);
+		pipe_info->num_sends_allowed++;
+		spin_unlock_bh(&pipe_info->pipe_lock);
 
 		compl = get_free_compl(pipe_info);
 		if (!compl)
@@ -714,13 +706,10 @@ static int ath10k_pci_hif_send_head(struct ath10k *ar, u8 pipe_id,
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
 	struct ath10k_pci_pipe *pipe_info = &(ar_pci->pipe_info[pipe_id]);
 	struct ath10k_ce_pipe *ce_hdl = pipe_info->ce_hdl;
-	struct ce_sendlist sendlist;
 	unsigned int len;
 	u32 flags = 0;
 	int ret;
 
-	memset(&sendlist, 0, sizeof(struct ce_sendlist));
-
 	len = min(bytes, nbuf->len);
 	bytes -= len;
 
@@ -735,8 +724,6 @@ static int ath10k_pci_hif_send_head(struct ath10k *ar, u8 pipe_id,
 			"ath10k tx: data: ",
 			nbuf->data, nbuf->len);
 
-	ath10k_ce_sendlist_buf_add(&sendlist, skb_cb->paddr, len, flags);
-
 	/* Make sure we have resources to handle this request */
 	spin_lock_bh(&pipe_info->pipe_lock);
 	if (!pipe_info->num_sends_allowed) {
@@ -747,7 +734,8 @@ static int ath10k_pci_hif_send_head(struct ath10k *ar, u8 pipe_id,
 	pipe_info->num_sends_allowed--;
 	spin_unlock_bh(&pipe_info->pipe_lock);
 
-	ret = ath10k_ce_sendlist_send(ce_hdl, nbuf, &sendlist, transfer_id);
+	ret = ath10k_ce_sendlist_send(ce_hdl, nbuf, transfer_id,
+				      skb_cb->paddr, len, flags);
 	if (ret)
 		ath10k_warn("CE send failed: %p\n", nbuf);
 
@@ -1302,16 +1290,14 @@ static void ath10k_pci_tx_pipe_cleanup(struct ath10k_pci_pipe *pipe_info)
 
 	while (ath10k_ce_cancel_send_next(ce_hdl, (void **)&netbuf,
 					  &ce_data, &nbytes, &id) == 0) {
-		if (netbuf != CE_SENDLIST_ITEM_CTXT) {
-			/*
-			 * Indicate the completion to higer layer to free
-			 * the buffer
-			 */
-			ATH10K_SKB_CB(netbuf)->is_aborted = true;
-			ar_pci->msg_callbacks_current.tx_completion(ar,
-								    netbuf,
-								    id);
-		}
+		/*
+		 * Indicate the completion to higer layer to free
+		 * the buffer
+		 */
+		ATH10K_SKB_CB(netbuf)->is_aborted = true;
+		ar_pci->msg_callbacks_current.tx_completion(ar,
+							    netbuf,
+							    id);
 	}
 }
 
-- 
cgit 


From 3699ddc55fc1d1689a411ada9d74e584f7987f46 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 20:25:11 +0900
Subject: wireless: ath10k: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index ecaf21315244..f1faf4691f91 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -2501,7 +2501,6 @@ err_region:
 err_device:
 	pci_disable_device(pdev);
 err_ar:
-	pci_set_drvdata(pdev, NULL);
 	ath10k_core_destroy(ar);
 err_ar_pci:
 	/* call HIF PCI free here */
@@ -2529,7 +2528,6 @@ static void ath10k_pci_remove(struct pci_dev *pdev)
 
 	ath10k_core_unregister(ar);
 
-	pci_set_drvdata(pdev, NULL);
 	pci_iounmap(pdev, ar_pci->mem);
 	pci_release_region(pdev, BAR_NUM);
 	pci_clear_master(pdev);
-- 
cgit 


From 2dbf0116aa8c7bfa900352d3f7b2609748fcc1c5 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Thu, 5 Sep 2013 20:37:38 -0700
Subject: perf/x86/intel: Avoid checkpointed counters causing excessive TSX
 aborts

With checkpointed counters there can be a situation where the counter
is overflowing, aborts the transaction, is set back to a non overflowing
checkpoint, causes interupt. The interrupt doesn't see the overflow
because it has been checkpointed.  This is then a spurious PMI, typically with
a ugly NMI message.  It can also lead to excessive aborts.

Avoid this problem by:

- Using the full counter width for counting counters (earlier patch)

- Forbid sampling for checkpointed counters. It's not too useful anyways,
  checkpointing is mainly for counting. The check is approximate
  (to still handle KVM), but should catch the majority of cases.

- On a PMI always set back checkpointed counters to zero.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1378438661-24765-2-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/cpu/perf_event_intel.c | 37 ++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index 9db76c31b3c3..57d64b75f15c 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -1282,6 +1282,11 @@ static void intel_pmu_enable_event(struct perf_event *event)
 	__x86_pmu_enable_event(hwc, ARCH_PERFMON_EVENTSEL_ENABLE);
 }
 
+static inline bool event_is_checkpointed(struct perf_event *event)
+{
+	return (event->hw.config & HSW_IN_TX_CHECKPOINTED) != 0;
+}
+
 /*
  * Save and restart an expired event. Called by NMI contexts,
  * so it has to be careful about preempting normal event ops:
@@ -1289,6 +1294,17 @@ static void intel_pmu_enable_event(struct perf_event *event)
 int intel_pmu_save_and_restart(struct perf_event *event)
 {
 	x86_perf_event_update(event);
+	/*
+	 * For a checkpointed counter always reset back to 0.  This
+	 * avoids a situation where the counter overflows, aborts the
+	 * transaction and is then set back to shortly before the
+	 * overflow, and overflows and aborts again.
+	 */
+	if (unlikely(event_is_checkpointed(event))) {
+		/* No race with NMIs because the counter should not be armed */
+		wrmsrl(event->hw.event_base, 0);
+		local64_set(&event->hw.prev_count, 0);
+	}
 	return x86_perf_event_set_period(event);
 }
 
@@ -1372,6 +1388,13 @@ again:
 		x86_pmu.drain_pebs(regs);
 	}
 
+	/*
+	 * To avoid spurious interrupts with perf stat always reset checkpointed
+	 * counters.
+	 */
+	if (cpuc->events[2] && event_is_checkpointed(cpuc->events[2]))
+		status |= (1ULL << 2);
+
 	for_each_set_bit(bit, (unsigned long *)&status, X86_PMC_IDX_MAX) {
 		struct perf_event *event = cpuc->events[bit];
 
@@ -1837,6 +1860,20 @@ static int hsw_hw_config(struct perf_event *event)
 	      event->attr.precise_ip > 0))
 		return -EOPNOTSUPP;
 
+	if (event_is_checkpointed(event)) {
+		/*
+		 * Sampling of checkpointed events can cause situations where
+		 * the CPU constantly aborts because of a overflow, which is
+		 * then checkpointed back and ignored. Forbid checkpointing
+		 * for sampling.
+		 *
+		 * But still allow a long sampling period, so that perf stat
+		 * from KVM works.
+		 */
+		if (event->attr.sample_period > 0 &&
+		    event->attr.sample_period < 0x7fffffff)
+			return -EOPNOTSUPP;
+	}
 	return 0;
 }
 
-- 
cgit 


From 748e86aa90edfddfa6016f1cf383ff5bc6aada91 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Thu, 5 Sep 2013 20:37:39 -0700
Subject: perf/x86: Report TSX transaction abort cost as weight

Use the existing weight reporting facility to report the transaction
abort cost, that is the number of cycles wasted in aborts.
Haswell reports this in the PEBS record.

This was in fact the original user for weight.

This is a very useful sort key to concentrate on the most
costly aborts and a good metric for TSX tuning.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1378438661-24765-3-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/cpu/perf_event_intel_ds.c | 55 +++++++++++++++++++++++--------
 1 file changed, 42 insertions(+), 13 deletions(-)

diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c
index 63438aad177f..104cbba3b595 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_ds.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c
@@ -182,16 +182,29 @@ struct pebs_record_nhm {
  * Same as pebs_record_nhm, with two additional fields.
  */
 struct pebs_record_hsw {
-	struct pebs_record_nhm nhm;
-	/*
-	 * Real IP of the event. In the Intel documentation this
-	 * is called eventingrip.
-	 */
-	u64 real_ip;
-	/*
-	 * TSX tuning information field: abort cycles and abort flags.
-	 */
-	u64 tsx_tuning;
+	u64 flags, ip;
+	u64 ax, bx, cx, dx;
+	u64 si, di, bp, sp;
+	u64 r8,  r9,  r10, r11;
+	u64 r12, r13, r14, r15;
+	u64 status, dla, dse, lat;
+	u64 real_ip; /* the actual eventing ip */
+	u64 tsx_tuning; /* TSX abort cycles and flags */
+};
+
+union hsw_tsx_tuning {
+	struct {
+		u32 cycles_last_block     : 32,
+		    hle_abort		  : 1,
+		    rtm_abort		  : 1,
+		    instruction_abort     : 1,
+		    non_instruction_abort : 1,
+		    retry		  : 1,
+		    data_conflict	  : 1,
+		    capacity_writes	  : 1,
+		    capacity_reads	  : 1;
+	};
+	u64	    value;
 };
 
 void init_debug_store_on_cpu(int cpu)
@@ -785,16 +798,26 @@ static int intel_pmu_pebs_fixup_ip(struct pt_regs *regs)
 	return 0;
 }
 
+static inline u64 intel_hsw_weight(struct pebs_record_hsw *pebs)
+{
+	if (pebs->tsx_tuning) {
+		union hsw_tsx_tuning tsx = { .value = pebs->tsx_tuning };
+		return tsx.cycles_last_block;
+	}
+	return 0;
+}
+
 static void __intel_pmu_pebs_event(struct perf_event *event,
 				   struct pt_regs *iregs, void *__pebs)
 {
 	/*
 	 * We cast to pebs_record_nhm to get the load latency data
 	 * if extra_reg MSR_PEBS_LD_LAT_THRESHOLD used
+	 * We cast to the biggest PEBS record are careful not
+	 * to access out-of-bounds members.
 	 */
 	struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
-	struct pebs_record_nhm *pebs = __pebs;
-	struct pebs_record_hsw *pebs_hsw = __pebs;
+	struct pebs_record_hsw *pebs = __pebs;
 	struct perf_sample_data data;
 	struct pt_regs regs;
 	u64 sample_type;
@@ -853,7 +876,7 @@ static void __intel_pmu_pebs_event(struct perf_event *event,
 	regs.sp = pebs->sp;
 
 	if (event->attr.precise_ip > 1 && x86_pmu.intel_cap.pebs_format >= 2) {
-		regs.ip = pebs_hsw->real_ip;
+		regs.ip = pebs->real_ip;
 		regs.flags |= PERF_EFLAGS_EXACT;
 	} else if (event->attr.precise_ip > 1 && intel_pmu_pebs_fixup_ip(&regs))
 		regs.flags |= PERF_EFLAGS_EXACT;
@@ -864,6 +887,12 @@ static void __intel_pmu_pebs_event(struct perf_event *event,
 		x86_pmu.intel_cap.pebs_format >= 1)
 		data.addr = pebs->dla;
 
+	/* Only set the TSX weight when no memory weight was requested. */
+	if ((event->attr.sample_type & PERF_SAMPLE_WEIGHT) &&
+	    !fll &&
+	    (x86_pmu.intel_cap.pebs_format >= 2))
+		data.weight = intel_hsw_weight(pebs);
+
 	if (has_branch_stack(event))
 		data.br_stack = &cpuc->lbr_stack;
 
-- 
cgit 


From 4b2c4f1f1b71fe18381f089c501ac21cd2167dfa Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Thu, 5 Sep 2013 20:37:40 -0700
Subject: perf/x86/intel: Add Haswell TSX event aliases

Add TSX event aliases, and export them from the kernel to perf.

These are used by perf stat -T and to allow
more user friendly access to events. The events are designed to
be fairly generic and may also apply to other architectures
implementing HTM.  They all cover common situations that
happens during tuning of transactional code.

For Haswell we have to separate the HLE and RTM events,
as they are separate in the PMU.

This adds the following events:

 tx-start	Count start transaction (used by perf stat -T)
 tx-commit	Count commit of transaction
 tx-abort	Count all aborts
 tx-conflict	Count aborts due to conflict with another CPU.
 tx-capacity	Count capacity aborts (transaction too large)

Then matching el-* events for HLE

 cycles-t	Transactional cycles (used by perf stat -T)
  * also exists on POWER8

 cycles-ct	Transactional cycles commited (used by perf stat -T)
  * according to Michael Ellerman POWER8 has a cycles-transactional-committed,
  * perf stat -T handles both cases

Note for useful abort profiling often precise has to be set,
as Haswell can only report the point inside the transaction
with precise=2.

For some classes of aborts, like conflicts, this is not needed,
as it makes more sense to look at the complete critical section.

This gives a clean set of generalized events to examine transaction
success and aborts. Haswell has additional events for TSX, but those
are more specialized for very specific situations.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1378438661-24765-4-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/cpu/perf_event_intel.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index 57d64b75f15c..dd1d4f3e18e6 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -2222,7 +2222,34 @@ static __init void intel_nehalem_quirk(void)
 EVENT_ATTR_STR(mem-loads,      mem_ld_hsw,     "event=0xcd,umask=0x1,ldlat=3");
 EVENT_ATTR_STR(mem-stores,     mem_st_hsw,     "event=0xd0,umask=0x82")
 
+/* Haswell special events */
+EVENT_ATTR_STR(tx-start,        tx_start,       "event=0xc9,umask=0x1");
+EVENT_ATTR_STR(tx-commit,       tx_commit,      "event=0xc9,umask=0x2");
+EVENT_ATTR_STR(tx-abort,        tx_abort,	"event=0xc9,umask=0x4");
+EVENT_ATTR_STR(tx-capacity,     tx_capacity,	"event=0x54,umask=0x2");
+EVENT_ATTR_STR(tx-conflict,     tx_conflict,	"event=0x54,umask=0x1");
+EVENT_ATTR_STR(el-start,        el_start,       "event=0xc8,umask=0x1");
+EVENT_ATTR_STR(el-commit,       el_commit,      "event=0xc8,umask=0x2");
+EVENT_ATTR_STR(el-abort,        el_abort,	"event=0xc8,umask=0x4");
+EVENT_ATTR_STR(el-capacity,     el_capacity,    "event=0x54,umask=0x2");
+EVENT_ATTR_STR(el-conflict,     el_conflict,    "event=0x54,umask=0x1");
+EVENT_ATTR_STR(cycles-t,        cycles_t,       "event=0x3c,in_tx=1");
+EVENT_ATTR_STR(cycles-ct,       cycles_ct,
+					"event=0x3c,in_tx=1,in_tx_cp=1");
+
 static struct attribute *hsw_events_attrs[] = {
+	EVENT_PTR(tx_start),
+	EVENT_PTR(tx_commit),
+	EVENT_PTR(tx_abort),
+	EVENT_PTR(tx_capacity),
+	EVENT_PTR(tx_conflict),
+	EVENT_PTR(el_start),
+	EVENT_PTR(el_commit),
+	EVENT_PTR(el_abort),
+	EVENT_PTR(el_capacity),
+	EVENT_PTR(el_conflict),
+	EVENT_PTR(cycles_t),
+	EVENT_PTR(cycles_ct),
 	EVENT_PTR(mem_ld_hsw),
 	EVENT_PTR(mem_st_hsw),
 	NULL
-- 
cgit 


From 2b9e344df384e595db24ac61ae5f780e9b024878 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 12 Sep 2013 12:53:44 +0200
Subject: perf/x86/intel: Clean up checkpoint-interrupt bits

Clean up the weird CP interrupt exception code by keeping a CP mask.

Andi suggested this implementation but weirdly didn't actually
implement it himself, do so now because it removes the conditional in
the interrupt handler and avoids the assumption its only on cnt2.

Suggested-by: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-dvb4q0rydkfp00kqat4p5bah@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/cpu/perf_event.h       |  5 +++++
 arch/x86/kernel/cpu/perf_event_intel.c | 22 +++++++++++++---------
 2 files changed, 18 insertions(+), 9 deletions(-)

diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h
index cc16faae0538..ce84edeeae27 100644
--- a/arch/x86/kernel/cpu/perf_event.h
+++ b/arch/x86/kernel/cpu/perf_event.h
@@ -163,6 +163,11 @@ struct cpu_hw_events {
 	u64				intel_ctrl_host_mask;
 	struct perf_guest_switch_msr	guest_switch_msrs[X86_PMC_IDX_MAX];
 
+	/*
+	 * Intel checkpoint mask
+	 */
+	u64				intel_cp_status;
+
 	/*
 	 * manage shared (per-core, per-cpu) registers
 	 * used on Intel NHM/WSM/SNB
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index dd1d4f3e18e6..ec70d0cce555 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -1184,6 +1184,11 @@ static void intel_pmu_disable_fixed(struct hw_perf_event *hwc)
 	wrmsrl(hwc->config_base, ctrl_val);
 }
 
+static inline bool event_is_checkpointed(struct perf_event *event)
+{
+	return (event->hw.config & HSW_IN_TX_CHECKPOINTED) != 0;
+}
+
 static void intel_pmu_disable_event(struct perf_event *event)
 {
 	struct hw_perf_event *hwc = &event->hw;
@@ -1197,6 +1202,7 @@ static void intel_pmu_disable_event(struct perf_event *event)
 
 	cpuc->intel_ctrl_guest_mask &= ~(1ull << hwc->idx);
 	cpuc->intel_ctrl_host_mask &= ~(1ull << hwc->idx);
+	cpuc->intel_cp_status &= ~(1ull << hwc->idx);
 
 	/*
 	 * must disable before any actual event
@@ -1271,6 +1277,9 @@ static void intel_pmu_enable_event(struct perf_event *event)
 	if (event->attr.exclude_guest)
 		cpuc->intel_ctrl_host_mask |= (1ull << hwc->idx);
 
+	if (unlikely(event_is_checkpointed(event)))
+		cpuc->intel_cp_status |= (1ull << hwc->idx);
+
 	if (unlikely(hwc->config_base == MSR_ARCH_PERFMON_FIXED_CTR_CTRL)) {
 		intel_pmu_enable_fixed(hwc);
 		return;
@@ -1282,11 +1291,6 @@ static void intel_pmu_enable_event(struct perf_event *event)
 	__x86_pmu_enable_event(hwc, ARCH_PERFMON_EVENTSEL_ENABLE);
 }
 
-static inline bool event_is_checkpointed(struct perf_event *event)
-{
-	return (event->hw.config & HSW_IN_TX_CHECKPOINTED) != 0;
-}
-
 /*
  * Save and restart an expired event. Called by NMI contexts,
  * so it has to be careful about preempting normal event ops:
@@ -1389,11 +1393,11 @@ again:
 	}
 
 	/*
-	 * To avoid spurious interrupts with perf stat always reset checkpointed
-	 * counters.
+	 * Checkpointed counters can lead to 'spurious' PMIs because the
+	 * rollback caused by the PMI will have cleared the overflow status
+	 * bit. Therefore always force probe these counters.
 	 */
-	if (cpuc->events[2] && event_is_checkpointed(cpuc->events[2]))
-		status |= (1ULL << 2);
+	status |= cpuc->intel_cp_status;
 
 	for_each_set_bit(bit, (unsigned long *)&status, X86_PMC_IDX_MAX) {
 		struct perf_event *event = cpuc->events[bit];
-- 
cgit 


From d2beea4a3419e63804094e9ac4b6d1518bc17a9b Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 12 Sep 2013 13:00:47 +0200
Subject: perf/x86/intel: Clean-up/reduce PEBS code

Get rid of some pointless duplication introduced by the Haswell code.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-8q6y4davda9aawwv5yxe7klp@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/cpu/perf_event_intel_ds.c | 94 +++++++++----------------------
 1 file changed, 26 insertions(+), 68 deletions(-)

diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c
index 104cbba3b595..f364c13ddaa6 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_ds.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c
@@ -188,8 +188,7 @@ struct pebs_record_hsw {
 	u64 r8,  r9,  r10, r11;
 	u64 r12, r13, r14, r15;
 	u64 status, dla, dse, lat;
-	u64 real_ip; /* the actual eventing ip */
-	u64 tsx_tuning; /* TSX abort cycles and flags */
+	u64 real_ip, tsx_tuning;
 };
 
 union hsw_tsx_tuning {
@@ -811,10 +810,8 @@ static void __intel_pmu_pebs_event(struct perf_event *event,
 				   struct pt_regs *iregs, void *__pebs)
 {
 	/*
-	 * We cast to pebs_record_nhm to get the load latency data
-	 * if extra_reg MSR_PEBS_LD_LAT_THRESHOLD used
-	 * We cast to the biggest PEBS record are careful not
-	 * to access out-of-bounds members.
+	 * We cast to the biggest pebs_record but are careful not to
+	 * unconditionally access the 'extra' entries.
 	 */
 	struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
 	struct pebs_record_hsw *pebs = __pebs;
@@ -884,12 +881,11 @@ static void __intel_pmu_pebs_event(struct perf_event *event,
 		regs.flags &= ~PERF_EFLAGS_EXACT;
 
 	if ((event->attr.sample_type & PERF_SAMPLE_ADDR) &&
-		x86_pmu.intel_cap.pebs_format >= 1)
+	    x86_pmu.intel_cap.pebs_format >= 1)
 		data.addr = pebs->dla;
 
 	/* Only set the TSX weight when no memory weight was requested. */
-	if ((event->attr.sample_type & PERF_SAMPLE_WEIGHT) &&
-	    !fll &&
+	if ((event->attr.sample_type & PERF_SAMPLE_WEIGHT) && !fll &&
 	    (x86_pmu.intel_cap.pebs_format >= 2))
 		data.weight = intel_hsw_weight(pebs);
 
@@ -941,17 +937,34 @@ static void intel_pmu_drain_pebs_core(struct pt_regs *iregs)
 	__intel_pmu_pebs_event(event, iregs, at);
 }
 
-static void __intel_pmu_drain_pebs_nhm(struct pt_regs *iregs, void *at,
-					void *top)
+static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs)
 {
 	struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
 	struct debug_store *ds = cpuc->ds;
 	struct perf_event *event = NULL;
+	void *at, *top;
 	u64 status = 0;
-	int bit;
+	int bit, n;
+
+	if (!x86_pmu.pebs_active)
+		return;
+
+	at  = (struct pebs_record_nhm *)(unsigned long)ds->pebs_buffer_base;
+	top = (struct pebs_record_nhm *)(unsigned long)ds->pebs_index;
 
 	ds->pebs_index = ds->pebs_buffer_base;
 
+	n = (top - at) / x86_pmu.pebs_record_size;
+	if (n <= 0)
+		return;
+
+	/*
+	 * Should not happen, we program the threshold at 1 and do not
+	 * set a reset value.
+	 */
+	WARN_ONCE(n > x86_pmu.max_pebs_events,
+		  "Unexpected number of pebs records %d\n", n);
+
 	for (; at < top; at += x86_pmu.pebs_record_size) {
 		struct pebs_record_nhm *p = at;
 
@@ -979,61 +992,6 @@ static void __intel_pmu_drain_pebs_nhm(struct pt_regs *iregs, void *at,
 	}
 }
 
-static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs)
-{
-	struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
-	struct debug_store *ds = cpuc->ds;
-	struct pebs_record_nhm *at, *top;
-	int n;
-
-	if (!x86_pmu.pebs_active)
-		return;
-
-	at  = (struct pebs_record_nhm *)(unsigned long)ds->pebs_buffer_base;
-	top = (struct pebs_record_nhm *)(unsigned long)ds->pebs_index;
-
-	ds->pebs_index = ds->pebs_buffer_base;
-
-	n = top - at;
-	if (n <= 0)
-		return;
-
-	/*
-	 * Should not happen, we program the threshold at 1 and do not
-	 * set a reset value.
-	 */
-	WARN_ONCE(n > x86_pmu.max_pebs_events,
-		  "Unexpected number of pebs records %d\n", n);
-
-	return __intel_pmu_drain_pebs_nhm(iregs, at, top);
-}
-
-static void intel_pmu_drain_pebs_hsw(struct pt_regs *iregs)
-{
-	struct cpu_hw_events *cpuc = &__get_cpu_var(cpu_hw_events);
-	struct debug_store *ds = cpuc->ds;
-	struct pebs_record_hsw *at, *top;
-	int n;
-
-	if (!x86_pmu.pebs_active)
-		return;
-
-	at  = (struct pebs_record_hsw *)(unsigned long)ds->pebs_buffer_base;
-	top = (struct pebs_record_hsw *)(unsigned long)ds->pebs_index;
-
-	n = top - at;
-	if (n <= 0)
-		return;
-	/*
-	 * Should not happen, we program the threshold at 1 and do not
-	 * set a reset value.
-	 */
-	WARN_ONCE(n > x86_pmu.max_pebs_events,
-		  "Unexpected number of pebs records %d\n", n);
-
-	return __intel_pmu_drain_pebs_nhm(iregs, at, top);
-}
-
 /*
  * BTS, PEBS probe and setup
  */
@@ -1068,7 +1026,7 @@ void intel_ds_init(void)
 		case 2:
 			pr_cont("PEBS fmt2%c, ", pebs_type);
 			x86_pmu.pebs_record_size = sizeof(struct pebs_record_hsw);
-			x86_pmu.drain_pebs = intel_pmu_drain_pebs_hsw;
+			x86_pmu.drain_pebs = intel_pmu_drain_pebs_nhm;
 			break;
 
 		default:
-- 
cgit 


From 6263322c5e8ffdaf5eaaa29e9d02d84a786aa970 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 19 Aug 2013 12:41:09 +0200
Subject: sched/fair: Rewrite group_imb trigger

Change the group_imb detection from the old 'load-spike' detector to
an actual imbalance detector. We set it from the lower domain balance
pass when it fails to create a balance in the presence of task
affinities.

The advantage is that this should no longer generate the false
positive group_imb conditions generated by transient load spikes from
the normal balancing/bulk-wakeup etc. behaviour.

While I haven't actually observed those they could happen.

I'm not entirely happy with this patch; it somehow feels a little
fragile.

Nor does it solve the biggest issue I have with the group_imb code; it
it still a fragile construct in that once we 'fixed' the imbalance
we'll not detect the group_imb again and could end up re-creating it.

That said, this patch does seem to preserve behaviour for the
described degenerate case. In particular on my 2*6*2 wsm-ep:

  taskset -c 3-11 bash -c 'for ((i=0;i<9;i++)) do while :; do :; done & done'

ends up with 9 spinners, each on their own CPU; whereas if you disable
the group_imb code that typically doesn't happen (you'll get one pair
sharing a CPU most of the time).

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-36fpbgl39dv4u51b6yz2ypz5@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c  | 90 ++++++++++++++++++----------------------------------
 kernel/sched/sched.h |  1 +
 2 files changed, 31 insertions(+), 60 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 11cd13667359..7325ca7b8978 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3906,7 +3906,8 @@ static unsigned long __read_mostly max_load_balance_interval = HZ/10;
 
 #define LBF_ALL_PINNED	0x01
 #define LBF_NEED_BREAK	0x02
-#define LBF_SOME_PINNED 0x04
+#define LBF_DST_PINNED  0x04
+#define LBF_SOME_PINNED	0x08
 
 struct lb_env {
 	struct sched_domain	*sd;
@@ -3997,6 +3998,8 @@ int can_migrate_task(struct task_struct *p, struct lb_env *env)
 
 		schedstat_inc(p, se.statistics.nr_failed_migrations_affine);
 
+		env->flags |= LBF_SOME_PINNED;
+
 		/*
 		 * Remember if this task can be migrated to any other cpu in
 		 * our sched_group. We may want to revisit it if we couldn't
@@ -4005,13 +4008,13 @@ int can_migrate_task(struct task_struct *p, struct lb_env *env)
 		 * Also avoid computing new_dst_cpu if we have already computed
 		 * one in current iteration.
 		 */
-		if (!env->dst_grpmask || (env->flags & LBF_SOME_PINNED))
+		if (!env->dst_grpmask || (env->flags & LBF_DST_PINNED))
 			return 0;
 
 		/* Prevent to re-select dst_cpu via env's cpus */
 		for_each_cpu_and(cpu, env->dst_grpmask, env->cpus) {
 			if (cpumask_test_cpu(cpu, tsk_cpus_allowed(p))) {
-				env->flags |= LBF_SOME_PINNED;
+				env->flags |= LBF_DST_PINNED;
 				env->new_dst_cpu = cpu;
 				break;
 			}
@@ -4526,13 +4529,12 @@ fix_small_capacity(struct sched_domain *sd, struct sched_group *group)
  * cpu 3 and leave one of the cpus in the second group unused.
  *
  * The current solution to this issue is detecting the skew in the first group
- * by noticing it has a cpu that is overloaded while the remaining cpus are
- * idle -- or rather, there's a distinct imbalance in the cpus; see
- * sg_imbalanced().
+ * by noticing the lower domain failed to reach balance and had difficulty
+ * moving tasks due to affinity constraints.
  *
  * When this is so detected; this group becomes a candidate for busiest; see
  * update_sd_pick_busiest(). And calculcate_imbalance() and
- * find_busiest_group() avoid some of the usual balance conditional to allow it
+ * find_busiest_group() avoid some of the usual balance conditions to allow it
  * to create an effective group imbalance.
  *
  * This is a somewhat tricky proposition since the next run might not find the
@@ -4540,49 +4542,9 @@ fix_small_capacity(struct sched_domain *sd, struct sched_group *group)
  * subtle and fragile situation.
  */
 
-struct sg_imb_stats {
-	unsigned long max_nr_running, min_nr_running;
-	unsigned long max_cpu_load, min_cpu_load;
-};
-
-static inline void init_sg_imb_stats(struct sg_imb_stats *sgi)
-{
-	sgi->max_cpu_load = sgi->max_nr_running = 0UL;
-	sgi->min_cpu_load = sgi->min_nr_running = ~0UL;
-}
-
-static inline void
-update_sg_imb_stats(struct sg_imb_stats *sgi,
-		    unsigned long load, unsigned long nr_running)
-{
-	if (load > sgi->max_cpu_load)
-		sgi->max_cpu_load = load;
-	if (sgi->min_cpu_load > load)
-		sgi->min_cpu_load = load;
-
-	if (nr_running > sgi->max_nr_running)
-		sgi->max_nr_running = nr_running;
-	if (sgi->min_nr_running > nr_running)
-		sgi->min_nr_running = nr_running;
-}
-
-static inline int
-sg_imbalanced(struct sg_lb_stats *sgs, struct sg_imb_stats *sgi)
+static inline int sg_imbalanced(struct sched_group *group)
 {
-	/*
-	 * Consider the group unbalanced when the imbalance is larger
-	 * than the average weight of a task.
-	 *
-	 * APZ: with cgroup the avg task weight can vary wildly and
-	 *      might not be a suitable number - should we keep a
-	 *      normalized nr_running number somewhere that negates
-	 *      the hierarchy?
-	 */
-	if ((sgi->max_cpu_load - sgi->min_cpu_load) >= sgs->load_per_task &&
-	    (sgi->max_nr_running - sgi->min_nr_running) > 1)
-		return 1;
-
-	return 0;
+	return group->sgp->imbalance;
 }
 
 /**
@@ -4597,25 +4559,20 @@ static inline void update_sg_lb_stats(struct lb_env *env,
 			struct sched_group *group, int load_idx,
 			int local_group, struct sg_lb_stats *sgs)
 {
-	struct sg_imb_stats sgi;
 	unsigned long nr_running;
 	unsigned long load;
 	int i;
 
-	init_sg_imb_stats(&sgi);
-
 	for_each_cpu_and(i, sched_group_cpus(group), env->cpus) {
 		struct rq *rq = cpu_rq(i);
 
 		nr_running = rq->nr_running;
 
 		/* Bias balancing toward cpus of our domain */
-		if (local_group) {
+		if (local_group)
 			load = target_load(i, load_idx);
-		} else {
+		else
 			load = source_load(i, load_idx);
-			update_sg_imb_stats(&sgi, load, nr_running);
-		}
 
 		sgs->group_load += load;
 		sgs->sum_nr_running += nr_running;
@@ -4635,7 +4592,7 @@ static inline void update_sg_lb_stats(struct lb_env *env,
 	if (sgs->sum_nr_running)
 		sgs->load_per_task = sgs->sum_weighted_load / sgs->sum_nr_running;
 
-	sgs->group_imb = sg_imbalanced(sgs, &sgi);
+	sgs->group_imb = sg_imbalanced(group);
 
 	sgs->group_capacity =
 		DIV_ROUND_CLOSEST(sgs->group_power, SCHED_POWER_SCALE);
@@ -5163,6 +5120,7 @@ static int load_balance(int this_cpu, struct rq *this_rq,
 			int *continue_balancing)
 {
 	int ld_moved, cur_ld_moved, active_balance = 0;
+	struct sched_domain *sd_parent = sd->parent;
 	struct sched_group *group;
 	struct rq *busiest;
 	unsigned long flags;
@@ -5267,11 +5225,11 @@ more_balance:
 		 * moreover subsequent load balance cycles should correct the
 		 * excess load moved.
 		 */
-		if ((env.flags & LBF_SOME_PINNED) && env.imbalance > 0) {
+		if ((env.flags & LBF_DST_PINNED) && env.imbalance > 0) {
 
 			env.dst_rq	 = cpu_rq(env.new_dst_cpu);
 			env.dst_cpu	 = env.new_dst_cpu;
-			env.flags	&= ~LBF_SOME_PINNED;
+			env.flags	&= ~LBF_DST_PINNED;
 			env.loop	 = 0;
 			env.loop_break	 = sched_nr_migrate_break;
 
@@ -5285,6 +5243,18 @@ more_balance:
 			goto more_balance;
 		}
 
+		/*
+		 * We failed to reach balance because of affinity.
+		 */
+		if (sd_parent) {
+			int *group_imbalance = &sd_parent->groups->sgp->imbalance;
+
+			if ((env.flags & LBF_SOME_PINNED) && env.imbalance > 0) {
+				*group_imbalance = 1;
+			} else if (*group_imbalance)
+				*group_imbalance = 0;
+		}
+
 		/* All tasks on this runqueue were pinned by CPU affinity */
 		if (unlikely(env.flags & LBF_ALL_PINNED)) {
 			cpumask_clear_cpu(cpu_of(busiest), cpus);
@@ -5688,7 +5658,7 @@ static void rebalance_domains(int cpu, enum cpu_idle_type idle)
 		if (time_after_eq(jiffies, sd->last_balance + interval)) {
 			if (load_balance(cpu, rq, sd, idle, &continue_balancing)) {
 				/*
-				 * The LBF_SOME_PINNED logic could have changed
+				 * The LBF_DST_PINNED logic could have changed
 				 * env->dst_cpu, so we can't know our idle
 				 * state even if we migrated tasks. Update it.
 				 */
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index b3c5653e1dca..0d7544c3dba7 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -605,6 +605,7 @@ struct sched_group_power {
 	 */
 	unsigned int power, power_orig;
 	unsigned long next_update;
+	int imbalance; /* XXX unrelated to power but shared group state */
 	/*
 	 * Number of busy cpus in this group.
 	 */
-- 
cgit 


From b72ff13ce6021b37459afacbccc0bc9b16989013 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 28 Aug 2013 10:32:32 +0200
Subject: sched/fair: Reduce local_group logic

Try and reduce the local_group logic by pulling most of it into
update_sd_lb_stats.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-mgezl354xgyhiyrte78fdkpd@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 29 +++++++++++++++++------------
 1 file changed, 17 insertions(+), 12 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 7325ca7b8978..f9f438530bee 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -4563,6 +4563,8 @@ static inline void update_sg_lb_stats(struct lb_env *env,
 	unsigned long load;
 	int i;
 
+	memset(sgs, 0, sizeof(*sgs));
+
 	for_each_cpu_and(i, sched_group_cpus(group), env->cpus) {
 		struct rq *rq = cpu_rq(i);
 
@@ -4581,10 +4583,6 @@ static inline void update_sg_lb_stats(struct lb_env *env,
 			sgs->idle_cpus++;
 	}
 
-	if (local_group && (env->idle != CPU_NEWLY_IDLE ||
-			time_after_eq(jiffies, group->sgp->next_update)))
-		update_group_power(env->sd, env->dst_cpu);
-
 	/* Adjust by relative CPU power of the group */
 	sgs->group_power = group->sgp->power;
 	sgs->avg_load = (sgs->group_load*SCHED_POWER_SCALE) / sgs->group_power;
@@ -4677,11 +4675,17 @@ static inline void update_sd_lb_stats(struct lb_env *env,
 		if (local_group) {
 			sds->local = sg;
 			sgs = &sds->local_stat;
+
+			if (env->idle != CPU_NEWLY_IDLE ||
+			    time_after_eq(jiffies, sg->sgp->next_update))
+				update_group_power(env->sd, env->dst_cpu);
 		}
 
-		memset(sgs, 0, sizeof(*sgs));
 		update_sg_lb_stats(env, sg, load_idx, local_group, sgs);
 
+		if (local_group)
+			goto next_group;
+
 		/*
 		 * In case the child domain prefers tasks go to siblings
 		 * first, lower the sg capacity to one so that we'll try
@@ -4692,19 +4696,20 @@ static inline void update_sd_lb_stats(struct lb_env *env,
 		 * heaviest group when it is already under-utilized (possible
 		 * with a large weight task outweighs the tasks on the system).
 		 */
-		if (prefer_sibling && !local_group &&
-				sds->local && sds->local_stat.group_has_capacity)
+		if (prefer_sibling && sds->local &&
+		    sds->local_stat.group_has_capacity)
 			sgs->group_capacity = min(sgs->group_capacity, 1U);
 
-		/* Now, start updating sd_lb_stats */
-		sds->total_load += sgs->group_load;
-		sds->total_pwr += sgs->group_power;
-
-		if (!local_group && update_sd_pick_busiest(env, sds, sg, sgs)) {
+		if (update_sd_pick_busiest(env, sds, sg, sgs)) {
 			sds->busiest = sg;
 			sds->busiest_stat = *sgs;
 		}
 
+next_group:
+		/* Now, start updating sd_lb_stats */
+		sds->total_load += sgs->group_load;
+		sds->total_pwr += sgs->group_power;
+
 		sg = sg->next;
 	} while (sg != env->sd->groups);
 }
-- 
cgit 


From 863bffc80898b8df295ebac111af2335ec05f85d Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 28 Aug 2013 11:44:39 +0200
Subject: sched/fair: Fix group power_orig computation

When looking at the code I noticed we don't actually compute
sgp->power_orig correctly for groups, fix that.

Currently the only consumer of that value is fix_small_capacity()
which is only used on POWER7+ and that code excludes this case by
being limited to SD_SHARE_CPUPOWER which is only ever set on the SMT
domain which must be the lowest domain and this has singleton groups.

So nothing should be affected by this change.

Cc: Michael Neuling <mikey@neuling.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-db2pe0vxwunv37plc7onnugj@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index f9f438530bee..baba3132a5ba 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -4450,7 +4450,7 @@ void update_group_power(struct sched_domain *sd, int cpu)
 {
 	struct sched_domain *child = sd->child;
 	struct sched_group *group, *sdg = sd->groups;
-	unsigned long power;
+	unsigned long power, power_orig;
 	unsigned long interval;
 
 	interval = msecs_to_jiffies(sd->balance_interval);
@@ -4462,7 +4462,7 @@ void update_group_power(struct sched_domain *sd, int cpu)
 		return;
 	}
 
-	power = 0;
+	power_orig = power = 0;
 
 	if (child->flags & SD_OVERLAP) {
 		/*
@@ -4470,8 +4470,12 @@ void update_group_power(struct sched_domain *sd, int cpu)
 		 * span the current group.
 		 */
 
-		for_each_cpu(cpu, sched_group_cpus(sdg))
-			power += power_of(cpu);
+		for_each_cpu(cpu, sched_group_cpus(sdg)) {
+			struct sched_group *sg = cpu_rq(cpu)->sd->groups;
+
+			power_orig += sg->sgp->power_orig;
+			power += sg->sgp->power;
+		}
 	} else  {
 		/*
 		 * !SD_OVERLAP domains can assume that child groups
@@ -4480,12 +4484,14 @@ void update_group_power(struct sched_domain *sd, int cpu)
 
 		group = child->groups;
 		do {
+			power_orig += group->sgp->power_orig;
 			power += group->sgp->power;
 			group = group->next;
 		} while (group != child->groups);
 	}
 
-	sdg->sgp->power_orig = sdg->sgp->power = power;
+	sdg->sgp->power_orig = power_orig;
+	sdg->sgp->power = power;
 }
 
 /*
-- 
cgit 


From b37d931685b519cd61a67fbdfe5b04707eb76e32 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 28 Aug 2013 11:50:34 +0200
Subject: sched/fair: Rework and comment the group_capacity code

Pull out the group_capacity computation so that we can more clearly
comment its issues.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-az1hl1ya55k361nkeh9bj0yw@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 32 ++++++++++++++++++++++++--------
 1 file changed, 24 insertions(+), 8 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index baba3132a5ba..218f9c5b08ce 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -4553,6 +4553,27 @@ static inline int sg_imbalanced(struct sched_group *group)
 	return group->sgp->imbalance;
 }
 
+/*
+ * Compute the group capacity.
+ *
+ * For now the capacity is simply the number of power units in the group_power.
+ * A power unit represents a full core.
+ *
+ * This has an issue where N*frac(smt_power) >= 1, in that case we'll see extra
+ * 'cores' that aren't actually there.
+ */
+static inline int sg_capacity(struct lb_env *env, struct sched_group *group)
+{
+
+	unsigned int power = group->sgp->power;
+	unsigned int capacity = DIV_ROUND_CLOSEST(power, SCHED_POWER_SCALE);
+
+	if (!capacity)
+		capacity = fix_small_capacity(env->sd, group);
+
+	return capacity;
+}
+
 /**
  * update_sg_lb_stats - Update sched_group's statistics for load balancing.
  * @env: The load balancing environment.
@@ -4596,16 +4617,11 @@ static inline void update_sg_lb_stats(struct lb_env *env,
 	if (sgs->sum_nr_running)
 		sgs->load_per_task = sgs->sum_weighted_load / sgs->sum_nr_running;
 
-	sgs->group_imb = sg_imbalanced(group);
-
-	sgs->group_capacity =
-		DIV_ROUND_CLOSEST(sgs->group_power, SCHED_POWER_SCALE);
-
-	if (!sgs->group_capacity)
-		sgs->group_capacity = fix_small_capacity(env->sd, group);
-
 	sgs->group_weight = group->group_weight;
 
+	sgs->group_imb = sg_imbalanced(group);
+	sgs->group_capacity = sg_capacity(env, group);
+
 	if (sgs->group_capacity > sgs->sum_nr_running)
 		sgs->group_has_capacity = 1;
 }
-- 
cgit 


From c61037e905a5cb74c7d786c35ee2cdbab9ed63af Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 28 Aug 2013 12:40:38 +0200
Subject: sched/fair: Fix the group_capacity computation

Do away with 'phantom' cores due to N*frac(smt_power) >= 1 by limiting
the capacity to the actual number of cores.

The assumption of 1 < smt_power < 2 is an actual requirement because
of what SMT is so this should work regardless of the SMT
implementation.

It can still be defeated by creative use of cpu hotplug, but if you're
one of those freaks, you get to live with it.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Vincent Guittot <vincent.guitto@linaro.org>
Link: http://lkml.kernel.org/n/tip-dczmbi8tfgixacg1ji2av1un@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 218f9c5b08ce..51c5c3ee77e3 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -4556,18 +4556,24 @@ static inline int sg_imbalanced(struct sched_group *group)
 /*
  * Compute the group capacity.
  *
- * For now the capacity is simply the number of power units in the group_power.
- * A power unit represents a full core.
- *
- * This has an issue where N*frac(smt_power) >= 1, in that case we'll see extra
- * 'cores' that aren't actually there.
+ * Avoid the issue where N*frac(smt_power) >= 1 creates 'phantom' cores by
+ * first dividing out the smt factor and computing the actual number of cores
+ * and limit power unit capacity with that.
  */
 static inline int sg_capacity(struct lb_env *env, struct sched_group *group)
 {
+	unsigned int capacity, smt, cpus;
+	unsigned int power, power_orig;
+
+	power = group->sgp->power;
+	power_orig = group->sgp->power_orig;
+	cpus = group->group_weight;
 
-	unsigned int power = group->sgp->power;
-	unsigned int capacity = DIV_ROUND_CLOSEST(power, SCHED_POWER_SCALE);
+	/* smt := ceil(cpus / power), assumes: 1 < smt_power < 2 */
+	smt = DIV_ROUND_UP(SCHED_POWER_SCALE * cpus, power_orig);
+	capacity = cpus / smt; /* cores */
 
+	capacity = min_t(unsigned, capacity, DIV_ROUND_CLOSEST(power, SCHED_POWER_SCALE));
 	if (!capacity)
 		capacity = fix_small_capacity(env->sd, group);
 
-- 
cgit 


From 7f2ee91f54fb56071f97bde1ef7ba7ba0d58dfe5 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Thu, 12 Sep 2013 19:17:00 +0200
Subject: perf/x86/intel: Clean up EVENT_ATTR_STR() muck

Make the code a bit more readable by removing stray whitespaces et al.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: http://lkml.kernel.org/n/tip-lzEnychz1ylqy8zjenxOmeht@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/cpu/perf_event_intel.c | 35 +++++++++++++++++-----------------
 1 file changed, 17 insertions(+), 18 deletions(-)

diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index ec70d0cce555..353b7a3a2581 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -190,9 +190,9 @@ static struct extra_reg intel_snbep_extra_regs[] __read_mostly = {
 	EVENT_EXTRA_END
 };
 
-EVENT_ATTR_STR(mem-loads, mem_ld_nhm, "event=0x0b,umask=0x10,ldlat=3");
-EVENT_ATTR_STR(mem-loads, mem_ld_snb, "event=0xcd,umask=0x1,ldlat=3");
-EVENT_ATTR_STR(mem-stores, mem_st_snb, "event=0xcd,umask=0x2");
+EVENT_ATTR_STR(mem-loads,	mem_ld_nhm,	"event=0x0b,umask=0x10,ldlat=3");
+EVENT_ATTR_STR(mem-loads,	mem_ld_snb,	"event=0xcd,umask=0x1,ldlat=3");
+EVENT_ATTR_STR(mem-stores,	mem_st_snb,	"event=0xcd,umask=0x2");
 
 struct attribute *nhm_events_attrs[] = {
 	EVENT_PTR(mem_ld_nhm),
@@ -2223,23 +2223,22 @@ static __init void intel_nehalem_quirk(void)
 	}
 }
 
-EVENT_ATTR_STR(mem-loads,      mem_ld_hsw,     "event=0xcd,umask=0x1,ldlat=3");
-EVENT_ATTR_STR(mem-stores,     mem_st_hsw,     "event=0xd0,umask=0x82")
+EVENT_ATTR_STR(mem-loads,	mem_ld_hsw,	"event=0xcd,umask=0x1,ldlat=3");
+EVENT_ATTR_STR(mem-stores,	mem_st_hsw,	"event=0xd0,umask=0x82")
 
 /* Haswell special events */
-EVENT_ATTR_STR(tx-start,        tx_start,       "event=0xc9,umask=0x1");
-EVENT_ATTR_STR(tx-commit,       tx_commit,      "event=0xc9,umask=0x2");
-EVENT_ATTR_STR(tx-abort,        tx_abort,	"event=0xc9,umask=0x4");
-EVENT_ATTR_STR(tx-capacity,     tx_capacity,	"event=0x54,umask=0x2");
-EVENT_ATTR_STR(tx-conflict,     tx_conflict,	"event=0x54,umask=0x1");
-EVENT_ATTR_STR(el-start,        el_start,       "event=0xc8,umask=0x1");
-EVENT_ATTR_STR(el-commit,       el_commit,      "event=0xc8,umask=0x2");
-EVENT_ATTR_STR(el-abort,        el_abort,	"event=0xc8,umask=0x4");
-EVENT_ATTR_STR(el-capacity,     el_capacity,    "event=0x54,umask=0x2");
-EVENT_ATTR_STR(el-conflict,     el_conflict,    "event=0x54,umask=0x1");
-EVENT_ATTR_STR(cycles-t,        cycles_t,       "event=0x3c,in_tx=1");
-EVENT_ATTR_STR(cycles-ct,       cycles_ct,
-					"event=0x3c,in_tx=1,in_tx_cp=1");
+EVENT_ATTR_STR(tx-start,	tx_start,	"event=0xc9,umask=0x1");
+EVENT_ATTR_STR(tx-commit,	tx_commit,	"event=0xc9,umask=0x2");
+EVENT_ATTR_STR(tx-abort,	tx_abort,	"event=0xc9,umask=0x4");
+EVENT_ATTR_STR(tx-capacity,	tx_capacity,	"event=0x54,umask=0x2");
+EVENT_ATTR_STR(tx-conflict,	tx_conflict,	"event=0x54,umask=0x1");
+EVENT_ATTR_STR(el-start,	el_start,	"event=0xc8,umask=0x1");
+EVENT_ATTR_STR(el-commit,	el_commit,	"event=0xc8,umask=0x2");
+EVENT_ATTR_STR(el-abort,	el_abort,	"event=0xc8,umask=0x4");
+EVENT_ATTR_STR(el-capacity,	el_capacity,	"event=0x54,umask=0x2");
+EVENT_ATTR_STR(el-conflict,	el_conflict,	"event=0x54,umask=0x1");
+EVENT_ATTR_STR(cycles-t,	cycles_t,	"event=0x3c,in_tx=1");
+EVENT_ATTR_STR(cycles-ct,	cycles_ct,	"event=0x3c,in_tx=1,in_tx_cp=1");
 
 static struct attribute *hsw_events_attrs[] = {
 	EVENT_PTR(tx_start),
-- 
cgit 


From 7d444909a25ed4a9dbc546bf9528c8d2e3bf3752 Mon Sep 17 00:00:00 2001
From: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Date: Tue, 3 Sep 2013 16:26:49 +0300
Subject: crypto: sha256_ssse3 - use correct module alias for sha224

Commit a710f761f (crypto: sha256_ssse3 - add sha224 support) attempted to add
MODULE_ALIAS for SHA-224, but it ended up being "sha384", probably because
mix-up with previous commit 340991e30 (crypto: sha512_ssse3 - add sha384
support). Patch corrects module alias to "sha224".

Reported-by: Pierre-Mayeul Badaire <pierre-mayeul.badaire@m4x.org>
Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 arch/x86/crypto/sha256_ssse3_glue.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/crypto/sha256_ssse3_glue.c b/arch/x86/crypto/sha256_ssse3_glue.c
index 50226c4b86ed..85021a4a8e0c 100644
--- a/arch/x86/crypto/sha256_ssse3_glue.c
+++ b/arch/x86/crypto/sha256_ssse3_glue.c
@@ -319,4 +319,4 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("SHA256 Secure Hash Algorithm, Supplemental SSE3 accelerated");
 
 MODULE_ALIAS("sha256");
-MODULE_ALIAS("sha384");
+MODULE_ALIAS("sha224");
-- 
cgit 


From 58497204aaca75c53394ff2dee6603315b8a2ea4 Mon Sep 17 00:00:00 2001
From: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Date: Tue, 3 Sep 2013 16:49:47 +0300
Subject: crypto: x86 - restore avx2_supported check

Commit 3d387ef08c4 (Revert "crypto: blowfish - add AVX2/x86_64 implementation
of blowfish cipher") reverted too much as it removed the 'assembler supports
AVX2' check and therefore disabled remaining AVX2 implementations of Camellia
and Serpent. Patch restores the check and enables these implementations.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 arch/x86/crypto/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index 7d6ba9db1be9..75b08e1e69db 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -3,6 +3,8 @@
 #
 
 avx_supported := $(call as-instr,vpxor %xmm0$(comma)%xmm0$(comma)%xmm0,yes,no)
+avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\
+				$(comma)4)$(comma)%ymm2,yes,no)
 
 obj-$(CONFIG_CRYPTO_ABLK_HELPER_X86) += ablk_helper.o
 obj-$(CONFIG_CRYPTO_GLUE_HELPER_X86) += glue_helper.o
-- 
cgit 


From a44bc80e66b4014e462cb8be9d354a7bc4723b7e Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Thu, 5 Sep 2013 00:46:12 +0100
Subject: hwrng: via-rng - Mark device ID table as __maybe_unused

It is only used in modular builds.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/char/hw_random/via-rng.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/hw_random/via-rng.c b/drivers/char/hw_random/via-rng.c
index e737772ad69a..de5a6dcfb3e2 100644
--- a/drivers/char/hw_random/via-rng.c
+++ b/drivers/char/hw_random/via-rng.c
@@ -221,7 +221,7 @@ static void __exit mod_exit(void)
 module_init(mod_init);
 module_exit(mod_exit);
 
-static struct x86_cpu_id via_rng_cpu_id[] = {
+static struct x86_cpu_id __maybe_unused via_rng_cpu_id[] = {
 	X86_FEATURE_MATCH(X86_FEATURE_XSTORE),
 	{}
 };
-- 
cgit 


From f5b38c5f19b1dafb413c6581cd4a0d84d3b6512f Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Mon, 9 Sep 2013 09:35:54 +0200
Subject: crypto: tegra - use kernel entropy instead of ad-hoc

The way I read the Tegra AES RNG is that it has a homebrew
algorithm for initializing the 128bit RNG using timespec and
the unique chip ID. This looks like reinventing the (square)
wheel, instead just grab 128bits from the kernel entropy pool
where the time and (after another patch) chip unique ID is
already mixed in.

Incidentally this also gets rid of a rather ugly
cross-dependence on the machine using an extern declaration.

Cc: Varun Wadekar <vwadekar@nvidia.com>
Cc: Neil Horman <nhorman@tuxdriver.com>
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/tegra-aes.c | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/drivers/crypto/tegra-aes.c b/drivers/crypto/tegra-aes.c
index 2d58da972ae2..7f42bfe9fc81 100644
--- a/drivers/crypto/tegra-aes.c
+++ b/drivers/crypto/tegra-aes.c
@@ -199,8 +199,6 @@ static void aes_workqueue_handler(struct work_struct *work);
 static DECLARE_WORK(aes_work, aes_workqueue_handler);
 static struct workqueue_struct *aes_wq;
 
-extern unsigned long long tegra_chip_uid(void);
-
 static inline u32 aes_readl(struct tegra_aes_dev *dd, u32 offset)
 {
 	return readl(dd->io_base + offset);
@@ -713,9 +711,8 @@ static int tegra_aes_rng_reset(struct crypto_rng *tfm, u8 *seed,
 	struct tegra_aes_dev *dd = aes_dev;
 	struct tegra_aes_ctx *ctx = &rng_ctx;
 	struct tegra_aes_slot *key_slot;
-	struct timespec ts;
 	int ret = 0;
-	u64 nsec, tmp[2];
+	u8 tmp[16]; /* 16 bytes = 128 bits of entropy */
 	u8 *dt;
 
 	if (!ctx || !dd) {
@@ -778,14 +775,8 @@ static int tegra_aes_rng_reset(struct crypto_rng *tfm, u8 *seed,
 	if (dd->ivlen >= (2 * DEFAULT_RNG_BLK_SZ + AES_KEYSIZE_128)) {
 		dt = dd->iv + DEFAULT_RNG_BLK_SZ + AES_KEYSIZE_128;
 	} else {
-		getnstimeofday(&ts);
-		nsec = timespec_to_ns(&ts);
-		do_div(nsec, 1000);
-		nsec ^= dd->ctr << 56;
-		dd->ctr++;
-		tmp[0] = nsec;
-		tmp[1] = tegra_chip_uid();
-		dt = (u8 *)tmp;
+		get_random_bytes(tmp, sizeof(tmp));
+		dt = tmp;
 	}
 	memcpy(dd->dt, dt, DEFAULT_RNG_BLK_SZ);
 
-- 
cgit 


From d5e4e999cda51eaa62e662088579fcce0ac79e92 Mon Sep 17 00:00:00 2001
From: Alex Porosanu <alexandru.porosanu@freescale.com>
Date: Mon, 9 Sep 2013 18:56:28 +0300
Subject: crypto: caam - fix RNG state handle instantiation descriptor

The way the DECO runs a descriptor through the direct (debug)
interface is different from the JRI interface: the DECO will
continue to try and execute the next commands, after the descriptor
buffer has ended. This leads to unpredictable results and possibly
to locking up of the DECO. This patch adds a halt command at the
end of the descriptor to ensure the DECO halts when it reaches
the end of the descriptor buffer.

Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/caam/ctrl.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index b010d42a1803..11c7f295857b 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -73,6 +73,8 @@ static void build_instantiation_desc(u32 *desc)
 	/* generate secure keys (non-test) */
 	append_operation(desc, OP_TYPE_CLASS1_ALG | OP_ALG_ALGSEL_RNG |
 			 OP_ALG_RNG4_SK);
+
+	append_jump(desc, JUMP_CLASS_CLASS1 | JUMP_TYPE_HALT);
 }
 
 static int instantiate_rng(struct device *ctrldev)
@@ -83,7 +85,7 @@ static int instantiate_rng(struct device *ctrldev)
 	u32 *desc;
 	int i, ret = 0;
 
-	desc = kmalloc(CAAM_CMD_SZ * 6, GFP_KERNEL | GFP_DMA);
+	desc = kmalloc(CAAM_CMD_SZ * 7, GFP_KERNEL | GFP_DMA);
 	if (!desc) {
 		dev_err(ctrldev, "can't allocate RNG init descriptor memory\n");
 		return -ENOMEM;
-- 
cgit 


From b2744dfd39c51e6fd56e79ff2eabf9953d45027e Mon Sep 17 00:00:00 2001
From: Alex Porosanu <alexandru.porosanu@freescale.com>
Date: Mon, 9 Sep 2013 18:56:29 +0300
Subject: crypto: caam - fix hash, alg and rng registration if CAAM driver not
 initialized

If the CAAM driver initialization failed (due to various reasons, e.g. RNG4
initialization failed), then the registration of hash/algorithms/rng shouldn't
take place. This patch adds the necessary code to prevent this registration.

Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/caam/caamalg.c  | 7 +++++++
 drivers/crypto/caam/caamhash.c | 7 +++++++
 drivers/crypto/caam/caamrng.c  | 7 +++++++
 3 files changed, 21 insertions(+)

diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index 7c63b72ecd75..86a0d415b9a7 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -2209,6 +2209,13 @@ static int __init caam_algapi_init(void)
 	priv = dev_get_drvdata(ctrldev);
 	of_node_put(dev_node);
 
+	/*
+	 * If priv is NULL, it's probably because the caam driver wasn't
+	 * properly initialized (e.g. RNG4 init failed). Thus, bail out here.
+	 */
+	if (!priv)
+		return -ENODEV;
+
 	INIT_LIST_HEAD(&priv->alg_list);
 
 	atomic_set(&priv->tfm_count, -1);
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c
index e732bd962e98..ca6218eee460 100644
--- a/drivers/crypto/caam/caamhash.c
+++ b/drivers/crypto/caam/caamhash.c
@@ -1833,6 +1833,13 @@ static int __init caam_algapi_hash_init(void)
 	priv = dev_get_drvdata(ctrldev);
 	of_node_put(dev_node);
 
+	/*
+	 * If priv is NULL, it's probably because the caam driver wasn't
+	 * properly initialized (e.g. RNG4 init failed). Thus, bail out here.
+	 */
+	if (!priv)
+		return -ENODEV;
+
 	INIT_LIST_HEAD(&priv->hash_list);
 
 	atomic_set(&priv->tfm_count, -1);
diff --git a/drivers/crypto/caam/caamrng.c b/drivers/crypto/caam/caamrng.c
index d1939a9539c0..588ad2288f82 100644
--- a/drivers/crypto/caam/caamrng.c
+++ b/drivers/crypto/caam/caamrng.c
@@ -298,6 +298,13 @@ static int __init caam_rng_init(void)
 	priv = dev_get_drvdata(ctrldev);
 	of_node_put(dev_node);
 
+	/*
+	 * If priv is NULL, it's probably because the caam driver wasn't
+	 * properly initialized (e.g. RNG4 init failed). Thus, bail out here.
+	 */
+	if (!priv)
+		return -ENODEV;
+
 	caam_init_rng(&rng_ctx, priv->jrdev[0]);
 
 	dev_info(priv->jrdev[0], "registering rng-caam\n");
-- 
cgit 


From 84cf48278bc94dfc1b4ffafa987ae115abcc625a Mon Sep 17 00:00:00 2001
From: Alex Porosanu <alexandru.porosanu@freescale.com>
Date: Mon, 9 Sep 2013 18:56:30 +0300
Subject: crypto: caam - fix RNG4 instantiation

The RNG4 block in CAAM needs to be 'seeded' first before being used
for generating pseudo-random data. The 'seeding' is done by getting
entropy from the TRNG ring oscillator. The RTFRQMAX register controls
the maximum allowable number of samples that can be aquired during
an entropy sample. Depending on the clock at which the RNG4 block
(and for that matter the SEC block) runs, it's possible that a
hard-coded value for the maximum frequency is inadequate, i.e. more
samples than needed are taken. This is an error, and thus the RNG4
block doesn't get initialized.  The patch attempts to alleviate
this issue by trying with progressivly larger frequencies, until
the number of samples is adequate.
This patch also fixes how a descriptor is deemed as being finished:
instead of checking the VALID field in the DECO debug register,
it makes sure that the DECO is idle, by checking the DECO state field
of the said register.

Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/caam/ctrl.c | 63 ++++++++++++++++++++++++++++++++++------------
 drivers/crypto/caam/regs.h |  7 ++++--
 2 files changed, 52 insertions(+), 18 deletions(-)

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index 11c7f295857b..d5fe5f57108c 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -82,7 +82,7 @@ static int instantiate_rng(struct device *ctrldev)
 	struct caam_drv_private *ctrlpriv = dev_get_drvdata(ctrldev);
 	struct caam_full __iomem *topregs;
 	unsigned int timeout = 100000;
-	u32 *desc;
+	u32 *desc, deco_dbg_reg;
 	int i, ret = 0;
 
 	desc = kmalloc(CAAM_CMD_SZ * 7, GFP_KERNEL | GFP_DMA);
@@ -112,9 +112,17 @@ static int instantiate_rng(struct device *ctrldev)
 	wr_reg32(&topregs->deco.jr_ctl_hi, DECO_JQCR_WHL | DECO_JQCR_FOUR);
 
 	timeout = 10000000;
-	while ((rd_reg32(&topregs->deco.desc_dbg) & DECO_DBG_VALID) &&
-								 --timeout)
+	do {
+		deco_dbg_reg = rd_reg32(&topregs->deco.desc_dbg);
+		/*
+		 * If an error occured in the descriptor, then
+		 * the DECO status field will be set to 0x0D
+		 */
+		if ((deco_dbg_reg & DESC_DBG_DECO_STAT_MASK) ==
+		    DESC_DBG_DECO_STAT_HOST_ERR)
+			break;
 		cpu_relax();
+	} while ((deco_dbg_reg & DESC_DBG_DECO_STAT_VALID) && --timeout);
 
 	if (!timeout) {
 		dev_err(ctrldev, "failed to instantiate RNG\n");
@@ -128,10 +136,12 @@ out:
 }
 
 /*
- * By default, the TRNG runs for 200 clocks per sample;
- * 1600 clocks per sample generates better entropy.
+ * kick_trng - sets the various parameters for enabling the initialization
+ *	       of the RNG4 block in CAAM
+ * @pdev - pointer to the platform device
+ * @ent_delay - Defines the length (in system clocks) of each entropy sample.
  */
-static void kick_trng(struct platform_device *pdev)
+static void kick_trng(struct platform_device *pdev, int ent_delay)
 {
 	struct device *ctrldev = &pdev->dev;
 	struct caam_drv_private *ctrlpriv = dev_get_drvdata(ctrldev);
@@ -144,14 +154,31 @@ static void kick_trng(struct platform_device *pdev)
 
 	/* put RNG4 into program mode */
 	setbits32(&r4tst->rtmctl, RTMCTL_PRGM);
-	/* 1600 clocks per sample */
+
+	/*
+	 * Performance-wise, it does not make sense to
+	 * set the delay to a value that is lower
+	 * than the last one that worked (i.e. the state handles
+	 * were instantiated properly. Thus, instead of wasting
+	 * time trying to set the values controlling the sample
+	 * frequency, the function simply returns.
+	 */
+	val = (rd_reg32(&r4tst->rtsdctl) & RTSDCTL_ENT_DLY_MASK)
+	      >> RTSDCTL_ENT_DLY_SHIFT;
+	if (ent_delay <= val) {
+		/* put RNG4 into run mode */
+		clrbits32(&r4tst->rtmctl, RTMCTL_PRGM);
+		return;
+	}
+
 	val = rd_reg32(&r4tst->rtsdctl);
-	val = (val & ~RTSDCTL_ENT_DLY_MASK) | (1600 << RTSDCTL_ENT_DLY_SHIFT);
+	val = (val & ~RTSDCTL_ENT_DLY_MASK) |
+	      (ent_delay << RTSDCTL_ENT_DLY_SHIFT);
 	wr_reg32(&r4tst->rtsdctl, val);
-	/* min. freq. count */
-	wr_reg32(&r4tst->rtfrqmin, 400);
-	/* max. freq. count */
-	wr_reg32(&r4tst->rtfrqmax, 6400);
+	/* min. freq. count, equal to 1/4 of the entropy sample length */
+	wr_reg32(&r4tst->rtfrqmin, ent_delay >> 2);
+	/* max. freq. count, equal to 8 times the entropy sample length */
+	wr_reg32(&r4tst->rtfrqmax, ent_delay << 3);
 	/* put RNG4 into run mode */
 	clrbits32(&r4tst->rtmctl, RTMCTL_PRGM);
 }
@@ -192,7 +219,7 @@ EXPORT_SYMBOL(caam_get_era);
 /* Probe routine for CAAM top (controller) level */
 static int caam_probe(struct platform_device *pdev)
 {
-	int ret, ring, rspec;
+	int ret, ring, rspec, ent_delay = RTSDCTL_ENT_DLY_MIN;
 	u64 caam_id;
 	struct device *dev;
 	struct device_node *nprop, *np;
@@ -298,13 +325,17 @@ static int caam_probe(struct platform_device *pdev)
 
 	/*
 	 * If SEC has RNG version >= 4 and RNG state handle has not been
-	 * already instantiated ,do RNG instantiation
+	 * already instantiated, do RNG instantiation
 	 */
 	if ((cha_vid & CHA_ID_RNG_MASK) >> CHA_ID_RNG_SHIFT >= 4 &&
 	    !(rd_reg32(&topregs->ctrl.r4tst[0].rdsta) & RDSTA_IF0)) {
-		kick_trng(pdev);
-		ret = instantiate_rng(dev);
+		do {
+			kick_trng(pdev, ent_delay);
+			ret = instantiate_rng(dev);
+			ent_delay += 400;
+		} while ((ret == -EIO) && (ent_delay < RTSDCTL_ENT_DLY_MAX));
 		if (ret) {
+			dev_err(dev, "failed to instantiate RNG");
 			caam_remove(pdev);
 			return ret;
 		}
diff --git a/drivers/crypto/caam/regs.h b/drivers/crypto/caam/regs.h
index 4455396918de..9aa9f718a6fc 100644
--- a/drivers/crypto/caam/regs.h
+++ b/drivers/crypto/caam/regs.h
@@ -255,6 +255,8 @@ struct rng4tst {
 	};
 #define RTSDCTL_ENT_DLY_SHIFT 16
 #define RTSDCTL_ENT_DLY_MASK (0xffff << RTSDCTL_ENT_DLY_SHIFT)
+#define RTSDCTL_ENT_DLY_MIN 1200
+#define RTSDCTL_ENT_DLY_MAX 12800
 	u32 rtsdctl;		/* seed control register */
 	union {
 		u32 rtsblim;	/* PRGM=1: sparse bit limit register */
@@ -706,12 +708,13 @@ struct caam_deco {
 	u32 rsvd29[48];
 	u32 descbuf[64];	/* DxDESB - Descriptor buffer */
 	u32 rscvd30[193];
+#define DESC_DBG_DECO_STAT_HOST_ERR	0x00D00000
+#define DESC_DBG_DECO_STAT_VALID	0x80000000
+#define DESC_DBG_DECO_STAT_MASK		0x00F00000
 	u32 desc_dbg;		/* DxDDR - DECO Debug Register */
 	u32 rsvd31[126];
 };
 
-/* DECO DBG Register Valid Bit*/
-#define DECO_DBG_VALID		0x80000000
 #define DECO_JQCR_WHL		0x20000000
 #define DECO_JQCR_FOUR		0x10000000
 
-- 
cgit 


From 04cddbfe6b5f334aa337a1a9797eb8914822f2f8 Mon Sep 17 00:00:00 2001
From: Alex Porosanu <alexandru.porosanu@freescale.com>
Date: Mon, 9 Sep 2013 18:56:31 +0300
Subject: crypto: caam - split RNG4 instantiation function

This patch splits the RNG4 state handle instantiation
function into two parts: one that handles the creation
of the descriptor which instructs the CAAM to perform
the instantiation of the state handle and another
function that performs the running of the said descriptor
using the DECO debug mechanism.

Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/caam/ctrl.c | 140 +++++++++++++++++++++++++++++----------------
 1 file changed, 92 insertions(+), 48 deletions(-)

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index d5fe5f57108c..3ad032f570ae 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -13,39 +13,6 @@
 #include "error.h"
 #include "ctrl.h"
 
-static int caam_remove(struct platform_device *pdev)
-{
-	struct device *ctrldev;
-	struct caam_drv_private *ctrlpriv;
-	struct caam_drv_private_jr *jrpriv;
-	struct caam_full __iomem *topregs;
-	int ring, ret = 0;
-
-	ctrldev = &pdev->dev;
-	ctrlpriv = dev_get_drvdata(ctrldev);
-	topregs = (struct caam_full __iomem *)ctrlpriv->ctrl;
-
-	/* shut down JobRs */
-	for (ring = 0; ring < ctrlpriv->total_jobrs; ring++) {
-		ret |= caam_jr_shutdown(ctrlpriv->jrdev[ring]);
-		jrpriv = dev_get_drvdata(ctrlpriv->jrdev[ring]);
-		irq_dispose_mapping(jrpriv->irq);
-	}
-
-	/* Shut down debug views */
-#ifdef CONFIG_DEBUG_FS
-	debugfs_remove_recursive(ctrlpriv->dfs_root);
-#endif
-
-	/* Unmap controller region */
-	iounmap(&topregs->ctrl);
-
-	kfree(ctrlpriv->jrdev);
-	kfree(ctrlpriv);
-
-	return ret;
-}
-
 /*
  * Descriptor to instantiate RNG State Handle 0 in normal mode and
  * load the JDKEK, TDKEK and TDSK registers
@@ -77,21 +44,23 @@ static void build_instantiation_desc(u32 *desc)
 	append_jump(desc, JUMP_CLASS_CLASS1 | JUMP_TYPE_HALT);
 }
 
-static int instantiate_rng(struct device *ctrldev)
+
+/*
+ * run_descriptor_deco0 - runs a descriptor on DECO0, under direct control of
+ *			  the software (no JR/QI used).
+ * @ctrldev - pointer to device
+ * Return: - 0 if no error occurred
+ *	   - -ENODEV if the DECO couldn't be acquired
+ *	   - -EAGAIN if an error occurred while executing the descriptor
+ */
+static inline int run_descriptor_deco0(struct device *ctrldev, u32 *desc)
 {
 	struct caam_drv_private *ctrlpriv = dev_get_drvdata(ctrldev);
 	struct caam_full __iomem *topregs;
 	unsigned int timeout = 100000;
-	u32 *desc, deco_dbg_reg;
+	u32 deco_dbg_reg, flags;
 	int i, ret = 0;
 
-	desc = kmalloc(CAAM_CMD_SZ * 7, GFP_KERNEL | GFP_DMA);
-	if (!desc) {
-		dev_err(ctrldev, "can't allocate RNG init descriptor memory\n");
-		return -ENOMEM;
-	}
-	build_instantiation_desc(desc);
-
 	/* Set the bit to request direct access to DECO0 */
 	topregs = (struct caam_full __iomem *)ctrlpriv->ctrl;
 	setbits32(&topregs->ctrl.deco_rq, DECORR_RQD0ENABLE);
@@ -102,14 +71,23 @@ static int instantiate_rng(struct device *ctrldev)
 
 	if (!timeout) {
 		dev_err(ctrldev, "failed to acquire DECO 0\n");
-		ret = -EIO;
-		goto out;
+		clrbits32(&topregs->ctrl.deco_rq, DECORR_RQD0ENABLE);
+		return -ENODEV;
 	}
 
 	for (i = 0; i < desc_len(desc); i++)
-		topregs->deco.descbuf[i] = *(desc + i);
+		wr_reg32(&topregs->deco.descbuf[i], *(desc + i));
 
-	wr_reg32(&topregs->deco.jr_ctl_hi, DECO_JQCR_WHL | DECO_JQCR_FOUR);
+	flags = DECO_JQCR_WHL;
+	/*
+	 * If the descriptor length is longer than 4 words, then the
+	 * FOUR bit in JRCTRL register must be set.
+	 */
+	if (desc_len(desc) >= 4)
+		flags |= DECO_JQCR_FOUR;
+
+	/* Instruct the DECO to execute it */
+	wr_reg32(&topregs->deco.jr_ctl_hi, flags);
 
 	timeout = 10000000;
 	do {
@@ -129,9 +107,75 @@ static int instantiate_rng(struct device *ctrldev)
 		ret = -EIO;
 	}
 
+	/* Mark the DECO as free */
 	clrbits32(&topregs->ctrl.deco_rq, DECORR_RQD0ENABLE);
-out:
+
+	if (!timeout)
+		return -EAGAIN;
+
+	return 0;
+}
+
+/*
+ * instantiate_rng - builds and executes a descriptor on DECO0,
+ *		     which initializes the RNG block.
+ * @ctrldev - pointer to device
+ * Return: - 0 if no error occurred
+ *	   - -ENOMEM if there isn't enough memory to allocate the descriptor
+ *	   - -ENODEV if DECO0 couldn't be acquired
+ *	   - -EAGAIN if an error occurred when executing the descriptor
+ *	      f.i. there was a RNG hardware error due to not "good enough"
+ *	      entropy being aquired.
+ */
+static int instantiate_rng(struct device *ctrldev)
+{
+	u32 *desc;
+	int ret = 0;
+
+	desc = kmalloc(CAAM_CMD_SZ * 7, GFP_KERNEL);
+	if (!desc)
+		return -ENOMEM;
+	/* Create the descriptor for instantiating RNG State Handle 0 */
+	build_instantiation_desc(desc);
+
+	/* Try to run it through DECO0 */
+	ret = run_descriptor_deco0(ctrldev, desc);
+
 	kfree(desc);
+
+	return ret;
+}
+
+static int caam_remove(struct platform_device *pdev)
+{
+	struct device *ctrldev;
+	struct caam_drv_private *ctrlpriv;
+	struct caam_drv_private_jr *jrpriv;
+	struct caam_full __iomem *topregs;
+	int ring, ret = 0;
+
+	ctrldev = &pdev->dev;
+	ctrlpriv = dev_get_drvdata(ctrldev);
+	topregs = (struct caam_full __iomem *)ctrlpriv->ctrl;
+
+	/* shut down JobRs */
+	for (ring = 0; ring < ctrlpriv->total_jobrs; ring++) {
+		ret |= caam_jr_shutdown(ctrlpriv->jrdev[ring]);
+		jrpriv = dev_get_drvdata(ctrlpriv->jrdev[ring]);
+		irq_dispose_mapping(jrpriv->irq);
+	}
+
+	/* Shut down debug views */
+#ifdef CONFIG_DEBUG_FS
+	debugfs_remove_recursive(ctrlpriv->dfs_root);
+#endif
+
+	/* Unmap controller region */
+	iounmap(&topregs->ctrl);
+
+	kfree(ctrlpriv->jrdev);
+	kfree(ctrlpriv);
+
 	return ret;
 }
 
@@ -333,7 +377,7 @@ static int caam_probe(struct platform_device *pdev)
 			kick_trng(pdev, ent_delay);
 			ret = instantiate_rng(dev);
 			ent_delay += 400;
-		} while ((ret == -EIO) && (ent_delay < RTSDCTL_ENT_DLY_MAX));
+		} while ((ret == -EAGAIN) && (ent_delay < RTSDCTL_ENT_DLY_MAX));
 		if (ret) {
 			dev_err(dev, "failed to instantiate RNG");
 			caam_remove(pdev);
-- 
cgit 


From b1f996e0b3b00c98f0ac8ffef1a6572cbc735bbc Mon Sep 17 00:00:00 2001
From: Alex Porosanu <alexandru.porosanu@freescale.com>
Date: Mon, 9 Sep 2013 18:56:32 +0300
Subject: crypto: caam - uninstantiate RNG state handle 0 if instantiated by
 caam driver

If the caam driver module instantiates the RNG state handle 0, then
upon the removal of the module, the RNG state handle is left
initialized. This patch takes care of reverting the state of the
handle back to its previous uninstantatied state.

Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/caam/ctrl.c   | 57 +++++++++++++++++++++++++++++++++++++++-----
 drivers/crypto/caam/intern.h |  6 +++++
 2 files changed, 57 insertions(+), 6 deletions(-)

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index 3ad032f570ae..9e9215ac130e 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -44,6 +44,17 @@ static void build_instantiation_desc(u32 *desc)
 	append_jump(desc, JUMP_CLASS_CLASS1 | JUMP_TYPE_HALT);
 }
 
+/* Descriptor for deinstantiation of State Handle 0 of the RNG block. */
+static void build_deinstantiation_desc(u32 *desc)
+{
+	init_job_desc(desc, 0);
+
+	/* Uninstantiate State Handle 0 */
+	append_operation(desc, OP_TYPE_CLASS1_ALG | OP_ALG_ALGSEL_RNG |
+			 OP_ALG_AS_INITFINAL);
+
+	append_jump(desc, JUMP_CLASS_CLASS1 | JUMP_TYPE_HALT);
+}
 
 /*
  * run_descriptor_deco0 - runs a descriptor on DECO0, under direct control of
@@ -59,7 +70,7 @@ static inline int run_descriptor_deco0(struct device *ctrldev, u32 *desc)
 	struct caam_full __iomem *topregs;
 	unsigned int timeout = 100000;
 	u32 deco_dbg_reg, flags;
-	int i, ret = 0;
+	int i;
 
 	/* Set the bit to request direct access to DECO0 */
 	topregs = (struct caam_full __iomem *)ctrlpriv->ctrl;
@@ -102,11 +113,6 @@ static inline int run_descriptor_deco0(struct device *ctrldev, u32 *desc)
 		cpu_relax();
 	} while ((deco_dbg_reg & DESC_DBG_DECO_STAT_VALID) && --timeout);
 
-	if (!timeout) {
-		dev_err(ctrldev, "failed to instantiate RNG\n");
-		ret = -EIO;
-	}
-
 	/* Mark the DECO as free */
 	clrbits32(&topregs->ctrl.deco_rq, DECORR_RQD0ENABLE);
 
@@ -146,6 +152,39 @@ static int instantiate_rng(struct device *ctrldev)
 	return ret;
 }
 
+/*
+ * deinstantiate_rng - builds and executes a descriptor on DECO0,
+ *		       which deinitializes the RNG block.
+ * @ctrldev - pointer to device
+ *
+ * Return: - 0 if no error occurred
+ *	   - -ENOMEM if there isn't enough memory to allocate the descriptor
+ *	   - -ENODEV if DECO0 couldn't be acquired
+ *	   - -EAGAIN if an error occurred when executing the descriptor
+ */
+static int deinstantiate_rng(struct device *ctrldev)
+{
+	u32 *desc;
+	int i, ret = 0;
+
+	desc = kmalloc(CAAM_CMD_SZ * 3, GFP_KERNEL);
+	if (!desc)
+		return -ENOMEM;
+
+	/* Create the descriptor for deinstantating RNG State Handle 0 */
+	build_deinstantiation_desc(desc);
+
+	/* Try to run it through DECO0 */
+	ret = run_descriptor_deco0(ctrldev, desc);
+
+	if (ret)
+		dev_err(ctrldev, "failed to deinstantiate RNG\n");
+
+	kfree(desc);
+
+	return ret;
+}
+
 static int caam_remove(struct platform_device *pdev)
 {
 	struct device *ctrldev;
@@ -165,6 +204,10 @@ static int caam_remove(struct platform_device *pdev)
 		irq_dispose_mapping(jrpriv->irq);
 	}
 
+	/* De-initialize RNG if it was initialized by this driver. */
+	if (ctrlpriv->rng4_init)
+		deinstantiate_rng(ctrldev);
+
 	/* Shut down debug views */
 #ifdef CONFIG_DEBUG_FS
 	debugfs_remove_recursive(ctrlpriv->dfs_root);
@@ -384,6 +427,8 @@ static int caam_probe(struct platform_device *pdev)
 			return ret;
 		}
 
+		ctrlpriv->rng4_init = 1;
+
 		/* Enable RDB bit so that RNG works faster */
 		setbits32(&topregs->ctrl.scfgr, SCFGR_RDBENABLE);
 	}
diff --git a/drivers/crypto/caam/intern.h b/drivers/crypto/caam/intern.h
index 34c4b9f7fbfa..ada24294c729 100644
--- a/drivers/crypto/caam/intern.h
+++ b/drivers/crypto/caam/intern.h
@@ -87,6 +87,12 @@ struct caam_drv_private {
 	/* list of registered hash algorithms (mk generic context handle?) */
 	struct list_head hash_list;
 
+	/* RNG4 block */
+	bool rng4_init;		/* If RNG4 block is initialized by this driver,
+				   then this will be set; if it was initialized
+				   by another entity (e.g. u-boot), it will be
+				   cleared. */
+
 	/*
 	 * debugfs entries for developer view into driver/device
 	 * variables at runtime.
-- 
cgit 


From f1157a5bf383bd811d27e8924543dd629a2e34c0 Mon Sep 17 00:00:00 2001
From: Alex Porosanu <alexandru.porosanu@freescale.com>
Date: Mon, 9 Sep 2013 18:56:33 +0300
Subject: crypto: caam - fix RNG4 AAI defines

RNG4 defines in desc.h were incomplete (bits AI & PS were missing),
while SK was set as an ALG related bit. This patchs adds the
missing bits and corrects the SK bit.

Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/caam/ctrl.c |  2 +-
 drivers/crypto/caam/desc.h | 17 +++++++++--------
 2 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index 9e9215ac130e..29cbec18a3a8 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -39,7 +39,7 @@ static void build_instantiation_desc(u32 *desc)
 
 	/* generate secure keys (non-test) */
 	append_operation(desc, OP_TYPE_CLASS1_ALG | OP_ALG_ALGSEL_RNG |
-			 OP_ALG_RNG4_SK);
+			 OP_ALG_AAI_RNG4_SK);
 
 	append_jump(desc, JUMP_CLASS_CLASS1 | JUMP_TYPE_HALT);
 }
diff --git a/drivers/crypto/caam/desc.h b/drivers/crypto/caam/desc.h
index 53b296f78b0d..7e4500f18df6 100644
--- a/drivers/crypto/caam/desc.h
+++ b/drivers/crypto/caam/desc.h
@@ -1155,8 +1155,15 @@ struct sec4_sg_entry {
 
 /* randomizer AAI set */
 #define OP_ALG_AAI_RNG		(0x00 << OP_ALG_AAI_SHIFT)
-#define OP_ALG_AAI_RNG_NOZERO	(0x10 << OP_ALG_AAI_SHIFT)
-#define OP_ALG_AAI_RNG_ODD	(0x20 << OP_ALG_AAI_SHIFT)
+#define OP_ALG_AAI_RNG_NZB	(0x10 << OP_ALG_AAI_SHIFT)
+#define OP_ALG_AAI_RNG_OBP	(0x20 << OP_ALG_AAI_SHIFT)
+
+/* RNG4 AAI set */
+#define OP_ALG_AAI_RNG4_SH_0	(0x00 << OP_ALG_AAI_SHIFT)
+#define OP_ALG_AAI_RNG4_SH_1	(0x01 << OP_ALG_AAI_SHIFT)
+#define OP_ALG_AAI_RNG4_PS	(0x40 << OP_ALG_AAI_SHIFT)
+#define OP_ALG_AAI_RNG4_AI	(0x80 << OP_ALG_AAI_SHIFT)
+#define OP_ALG_AAI_RNG4_SK	(0x100 << OP_ALG_AAI_SHIFT)
 
 /* hmac/smac AAI set */
 #define OP_ALG_AAI_HASH		(0x00 << OP_ALG_AAI_SHIFT)
@@ -1178,12 +1185,6 @@ struct sec4_sg_entry {
 #define OP_ALG_AAI_GSM		(0x10 << OP_ALG_AAI_SHIFT)
 #define OP_ALG_AAI_EDGE		(0x20 << OP_ALG_AAI_SHIFT)
 
-/* RNG4 set */
-#define OP_ALG_RNG4_SHIFT	4
-#define OP_ALG_RNG4_MASK	(0x1f3 << OP_ALG_RNG4_SHIFT)
-
-#define OP_ALG_RNG4_SK		(0x100 << OP_ALG_RNG4_SHIFT)
-
 #define OP_ALG_AS_SHIFT		2
 #define OP_ALG_AS_MASK		(0x3 << OP_ALG_AS_SHIFT)
 #define OP_ALG_AS_UPDATE	(0 << OP_ALG_AS_SHIFT)
-- 
cgit 


From 1005bccd7a4a6345d995449b77cb1ba748ff9a28 Mon Sep 17 00:00:00 2001
From: Alex Porosanu <alexandru.porosanu@freescale.com>
Date: Mon, 9 Sep 2013 18:56:34 +0300
Subject: crypto: caam - enable instantiation of all RNG4 state handles

RNG4 block contains multiple (i.e. 2) state handles that can be
initialized. This patch adds the necessary code for detecting
which of the two state handles has been instantiated by another
piece of software e.g. u-boot and instantiate the other one (or
both if none was instantiated). Only the state handle(s)
instantiated by this driver will be deinstantiated when removing
the module.

Signed-off-by: Alex Porosanu <alexandru.porosanu@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/caam/ctrl.c   | 206 +++++++++++++++++++++++++++++++++----------
 drivers/crypto/caam/intern.h |   8 +-
 drivers/crypto/caam/regs.h   |   7 +-
 3 files changed, 169 insertions(+), 52 deletions(-)

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index 29cbec18a3a8..26438cd12685 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -17,41 +17,49 @@
  * Descriptor to instantiate RNG State Handle 0 in normal mode and
  * load the JDKEK, TDKEK and TDSK registers
  */
-static void build_instantiation_desc(u32 *desc)
+static void build_instantiation_desc(u32 *desc, int handle, int do_sk)
 {
-	u32 *jump_cmd;
+	u32 *jump_cmd, op_flags;
 
 	init_job_desc(desc, 0);
 
+	op_flags = OP_TYPE_CLASS1_ALG | OP_ALG_ALGSEL_RNG |
+			(handle << OP_ALG_AAI_SHIFT) | OP_ALG_AS_INIT;
+
 	/* INIT RNG in non-test mode */
-	append_operation(desc, OP_TYPE_CLASS1_ALG | OP_ALG_ALGSEL_RNG |
-			 OP_ALG_AS_INIT);
+	append_operation(desc, op_flags);
 
-	/* wait for done */
-	jump_cmd = append_jump(desc, JUMP_CLASS_CLASS1);
-	set_jump_tgt_here(desc, jump_cmd);
+	if (!handle && do_sk) {
+		/*
+		 * For SH0, Secure Keys must be generated as well
+		 */
 
-	/*
-	 * load 1 to clear written reg:
-	 * resets the done interrupt and returns the RNG to idle.
-	 */
-	append_load_imm_u32(desc, 1, LDST_SRCDST_WORD_CLRW);
+		/* wait for done */
+		jump_cmd = append_jump(desc, JUMP_CLASS_CLASS1);
+		set_jump_tgt_here(desc, jump_cmd);
 
-	/* generate secure keys (non-test) */
-	append_operation(desc, OP_TYPE_CLASS1_ALG | OP_ALG_ALGSEL_RNG |
-			 OP_ALG_AAI_RNG4_SK);
+		/*
+		 * load 1 to clear written reg:
+		 * resets the done interrrupt and returns the RNG to idle.
+		 */
+		append_load_imm_u32(desc, 1, LDST_SRCDST_WORD_CLRW);
+
+		/* Initialize State Handle  */
+		append_operation(desc, OP_TYPE_CLASS1_ALG | OP_ALG_ALGSEL_RNG |
+				 OP_ALG_AAI_RNG4_SK);
+	}
 
 	append_jump(desc, JUMP_CLASS_CLASS1 | JUMP_TYPE_HALT);
 }
 
 /* Descriptor for deinstantiation of State Handle 0 of the RNG block. */
-static void build_deinstantiation_desc(u32 *desc)
+static void build_deinstantiation_desc(u32 *desc, int handle)
 {
 	init_job_desc(desc, 0);
 
 	/* Uninstantiate State Handle 0 */
 	append_operation(desc, OP_TYPE_CLASS1_ALG | OP_ALG_ALGSEL_RNG |
-			 OP_ALG_AS_INITFINAL);
+			 (handle << OP_ALG_AAI_SHIFT) | OP_ALG_AS_INITFINAL);
 
 	append_jump(desc, JUMP_CLASS_CLASS1 | JUMP_TYPE_HALT);
 }
@@ -60,11 +68,14 @@ static void build_deinstantiation_desc(u32 *desc)
  * run_descriptor_deco0 - runs a descriptor on DECO0, under direct control of
  *			  the software (no JR/QI used).
  * @ctrldev - pointer to device
+ * @status - descriptor status, after being run
+ *
  * Return: - 0 if no error occurred
  *	   - -ENODEV if the DECO couldn't be acquired
  *	   - -EAGAIN if an error occurred while executing the descriptor
  */
-static inline int run_descriptor_deco0(struct device *ctrldev, u32 *desc)
+static inline int run_descriptor_deco0(struct device *ctrldev, u32 *desc,
+					u32 *status)
 {
 	struct caam_drv_private *ctrlpriv = dev_get_drvdata(ctrldev);
 	struct caam_full __iomem *topregs;
@@ -113,6 +124,9 @@ static inline int run_descriptor_deco0(struct device *ctrldev, u32 *desc)
 		cpu_relax();
 	} while ((deco_dbg_reg & DESC_DBG_DECO_STAT_VALID) && --timeout);
 
+	*status = rd_reg32(&topregs->deco.op_status_hi) &
+		  DECO_OP_STATUS_HI_ERR_MASK;
+
 	/* Mark the DECO as free */
 	clrbits32(&topregs->ctrl.deco_rq, DECORR_RQD0ENABLE);
 
@@ -126,6 +140,14 @@ static inline int run_descriptor_deco0(struct device *ctrldev, u32 *desc)
  * instantiate_rng - builds and executes a descriptor on DECO0,
  *		     which initializes the RNG block.
  * @ctrldev - pointer to device
+ * @state_handle_mask - bitmask containing the instantiation status
+ *			for the RNG4 state handles which exist in
+ *			the RNG4 block: 1 if it's been instantiated
+ *			by an external entry, 0 otherwise.
+ * @gen_sk  - generate data to be loaded into the JDKEK, TDKEK and TDSK;
+ *	      Caution: this can be done only once; if the keys need to be
+ *	      regenerated, a POR is required
+ *
  * Return: - 0 if no error occurred
  *	   - -ENOMEM if there isn't enough memory to allocate the descriptor
  *	   - -ENODEV if DECO0 couldn't be acquired
@@ -133,19 +155,56 @@ static inline int run_descriptor_deco0(struct device *ctrldev, u32 *desc)
  *	      f.i. there was a RNG hardware error due to not "good enough"
  *	      entropy being aquired.
  */
-static int instantiate_rng(struct device *ctrldev)
+static int instantiate_rng(struct device *ctrldev, int state_handle_mask,
+			   int gen_sk)
 {
-	u32 *desc;
-	int ret = 0;
+	struct caam_drv_private *ctrlpriv = dev_get_drvdata(ctrldev);
+	struct caam_full __iomem *topregs;
+	struct rng4tst __iomem *r4tst;
+	u32 *desc, status, rdsta_val;
+	int ret = 0, sh_idx;
+
+	topregs = (struct caam_full __iomem *)ctrlpriv->ctrl;
+	r4tst = &topregs->ctrl.r4tst[0];
 
 	desc = kmalloc(CAAM_CMD_SZ * 7, GFP_KERNEL);
 	if (!desc)
 		return -ENOMEM;
-	/* Create the descriptor for instantiating RNG State Handle 0 */
-	build_instantiation_desc(desc);
 
-	/* Try to run it through DECO0 */
-	ret = run_descriptor_deco0(ctrldev, desc);
+	for (sh_idx = 0; sh_idx < RNG4_MAX_HANDLES; sh_idx++) {
+		/*
+		 * If the corresponding bit is set, this state handle
+		 * was initialized by somebody else, so it's left alone.
+		 */
+		if ((1 << sh_idx) & state_handle_mask)
+			continue;
+
+		/* Create the descriptor for instantiating RNG State Handle */
+		build_instantiation_desc(desc, sh_idx, gen_sk);
+
+		/* Try to run it through DECO0 */
+		ret = run_descriptor_deco0(ctrldev, desc, &status);
+
+		/*
+		 * If ret is not 0, or descriptor status is not 0, then
+		 * something went wrong. No need to try the next state
+		 * handle (if available), bail out here.
+		 * Also, if for some reason, the State Handle didn't get
+		 * instantiated although the descriptor has finished
+		 * without any error (HW optimizations for later
+		 * CAAM eras), then try again.
+		 */
+		rdsta_val =
+			rd_reg32(&topregs->ctrl.r4tst[0].rdsta) & RDSTA_IFMASK;
+		if (status || !(rdsta_val & (1 << sh_idx)))
+			ret = -EAGAIN;
+		if (ret)
+			break;
+
+		dev_info(ctrldev, "Instantiated RNG4 SH%d\n", sh_idx);
+		/* Clear the contents before recreating the descriptor */
+		memset(desc, 0x00, CAAM_CMD_SZ * 7);
+	}
 
 	kfree(desc);
 
@@ -156,29 +215,49 @@ static int instantiate_rng(struct device *ctrldev)
  * deinstantiate_rng - builds and executes a descriptor on DECO0,
  *		       which deinitializes the RNG block.
  * @ctrldev - pointer to device
+ * @state_handle_mask - bitmask containing the instantiation status
+ *			for the RNG4 state handles which exist in
+ *			the RNG4 block: 1 if it's been instantiated
  *
  * Return: - 0 if no error occurred
  *	   - -ENOMEM if there isn't enough memory to allocate the descriptor
  *	   - -ENODEV if DECO0 couldn't be acquired
  *	   - -EAGAIN if an error occurred when executing the descriptor
  */
-static int deinstantiate_rng(struct device *ctrldev)
+static int deinstantiate_rng(struct device *ctrldev, int state_handle_mask)
 {
-	u32 *desc;
-	int i, ret = 0;
+	u32 *desc, status;
+	int sh_idx, ret = 0;
 
 	desc = kmalloc(CAAM_CMD_SZ * 3, GFP_KERNEL);
 	if (!desc)
 		return -ENOMEM;
 
-	/* Create the descriptor for deinstantating RNG State Handle 0 */
-	build_deinstantiation_desc(desc);
-
-	/* Try to run it through DECO0 */
-	ret = run_descriptor_deco0(ctrldev, desc);
-
-	if (ret)
-		dev_err(ctrldev, "failed to deinstantiate RNG\n");
+	for (sh_idx = 0; sh_idx < RNG4_MAX_HANDLES; sh_idx++) {
+		/*
+		 * If the corresponding bit is set, then it means the state
+		 * handle was initialized by us, and thus it needs to be
+		 * deintialized as well
+		 */
+		if ((1 << sh_idx) & state_handle_mask) {
+			/*
+			 * Create the descriptor for deinstantating this state
+			 * handle
+			 */
+			build_deinstantiation_desc(desc, sh_idx);
+
+			/* Try to run it through DECO0 */
+			ret = run_descriptor_deco0(ctrldev, desc, &status);
+
+			if (ret || status) {
+				dev_err(ctrldev,
+					"Failed to deinstantiate RNG4 SH%d\n",
+					sh_idx);
+				break;
+			}
+			dev_info(ctrldev, "Deinstantiated RNG4 SH%d\n", sh_idx);
+		}
+	}
 
 	kfree(desc);
 
@@ -204,9 +283,9 @@ static int caam_remove(struct platform_device *pdev)
 		irq_dispose_mapping(jrpriv->irq);
 	}
 
-	/* De-initialize RNG if it was initialized by this driver. */
-	if (ctrlpriv->rng4_init)
-		deinstantiate_rng(ctrldev);
+	/* De-initialize RNG state handles initialized by this driver. */
+	if (ctrlpriv->rng4_sh_init)
+		deinstantiate_rng(ctrldev, ctrlpriv->rng4_sh_init);
 
 	/* Shut down debug views */
 #ifdef CONFIG_DEBUG_FS
@@ -306,7 +385,7 @@ EXPORT_SYMBOL(caam_get_era);
 /* Probe routine for CAAM top (controller) level */
 static int caam_probe(struct platform_device *pdev)
 {
-	int ret, ring, rspec, ent_delay = RTSDCTL_ENT_DLY_MIN;
+	int ret, ring, rspec, gen_sk, ent_delay = RTSDCTL_ENT_DLY_MIN;
 	u64 caam_id;
 	struct device *dev;
 	struct device_node *nprop, *np;
@@ -414,20 +493,53 @@ static int caam_probe(struct platform_device *pdev)
 	 * If SEC has RNG version >= 4 and RNG state handle has not been
 	 * already instantiated, do RNG instantiation
 	 */
-	if ((cha_vid & CHA_ID_RNG_MASK) >> CHA_ID_RNG_SHIFT >= 4 &&
-	    !(rd_reg32(&topregs->ctrl.r4tst[0].rdsta) & RDSTA_IF0)) {
+	if ((cha_vid & CHA_ID_RNG_MASK) >> CHA_ID_RNG_SHIFT >= 4) {
+		ctrlpriv->rng4_sh_init =
+			rd_reg32(&topregs->ctrl.r4tst[0].rdsta);
+		/*
+		 * If the secure keys (TDKEK, JDKEK, TDSK), were already
+		 * generated, signal this to the function that is instantiating
+		 * the state handles. An error would occur if RNG4 attempts
+		 * to regenerate these keys before the next POR.
+		 */
+		gen_sk = ctrlpriv->rng4_sh_init & RDSTA_SKVN ? 0 : 1;
+		ctrlpriv->rng4_sh_init &= RDSTA_IFMASK;
 		do {
-			kick_trng(pdev, ent_delay);
-			ret = instantiate_rng(dev);
-			ent_delay += 400;
+			int inst_handles =
+				rd_reg32(&topregs->ctrl.r4tst[0].rdsta) &
+								RDSTA_IFMASK;
+			/*
+			 * If either SH were instantiated by somebody else
+			 * (e.g. u-boot) then it is assumed that the entropy
+			 * parameters are properly set and thus the function
+			 * setting these (kick_trng(...)) is skipped.
+			 * Also, if a handle was instantiated, do not change
+			 * the TRNG parameters.
+			 */
+			if (!(ctrlpriv->rng4_sh_init || inst_handles)) {
+				kick_trng(pdev, ent_delay);
+				ent_delay += 400;
+			}
+			/*
+			 * if instantiate_rng(...) fails, the loop will rerun
+			 * and the kick_trng(...) function will modfiy the
+			 * upper and lower limits of the entropy sampling
+			 * interval, leading to a sucessful initialization of
+			 * the RNG.
+			 */
+			ret = instantiate_rng(dev, inst_handles,
+					      gen_sk);
 		} while ((ret == -EAGAIN) && (ent_delay < RTSDCTL_ENT_DLY_MAX));
 		if (ret) {
 			dev_err(dev, "failed to instantiate RNG");
 			caam_remove(pdev);
 			return ret;
 		}
-
-		ctrlpriv->rng4_init = 1;
+		/*
+		 * Set handles init'ed by this module as the complement of the
+		 * already initialized ones
+		 */
+		ctrlpriv->rng4_sh_init = ~ctrlpriv->rng4_sh_init & RDSTA_IFMASK;
 
 		/* Enable RDB bit so that RNG works faster */
 		setbits32(&topregs->ctrl.scfgr, SCFGR_RDBENABLE);
diff --git a/drivers/crypto/caam/intern.h b/drivers/crypto/caam/intern.h
index ada24294c729..bbc1ac9ec720 100644
--- a/drivers/crypto/caam/intern.h
+++ b/drivers/crypto/caam/intern.h
@@ -87,11 +87,11 @@ struct caam_drv_private {
 	/* list of registered hash algorithms (mk generic context handle?) */
 	struct list_head hash_list;
 
+#define	RNG4_MAX_HANDLES 2
 	/* RNG4 block */
-	bool rng4_init;		/* If RNG4 block is initialized by this driver,
-				   then this will be set; if it was initialized
-				   by another entity (e.g. u-boot), it will be
-				   cleared. */
+	u32 rng4_sh_init;	/* This bitmap shows which of the State
+				   Handles of the RNG4 block are initialized
+				   by this driver */
 
 	/*
 	 * debugfs entries for developer view into driver/device
diff --git a/drivers/crypto/caam/regs.h b/drivers/crypto/caam/regs.h
index 9aa9f718a6fc..d50174f45b21 100644
--- a/drivers/crypto/caam/regs.h
+++ b/drivers/crypto/caam/regs.h
@@ -245,7 +245,7 @@ struct rngtst {
 
 /* RNG4 TRNG test registers */
 struct rng4tst {
-#define RTMCTL_PRGM 0x00010000	/* 1 -> program mode, 0 -> run mode */
+#define RTMCTL_PRGM	0x00010000	/* 1 -> program mode, 0 -> run mode */
 	u32 rtmctl;		/* misc. control register */
 	u32 rtscmisc;		/* statistical check misc. register */
 	u32 rtpkrrng;		/* poker range register */
@@ -268,7 +268,11 @@ struct rng4tst {
 		u32 rtfrqcnt;	/* PRGM=0: freq. count register */
 	};
 	u32 rsvd1[40];
+#define RDSTA_SKVT 0x80000000
+#define RDSTA_SKVN 0x40000000
 #define RDSTA_IF0 0x00000001
+#define RDSTA_IF1 0x00000002
+#define RDSTA_IFMASK (RDSTA_IF1 | RDSTA_IF0)
 	u32 rdsta;
 	u32 rsvd2[15];
 };
@@ -694,6 +698,7 @@ struct caam_deco {
 	u32 jr_ctl_hi;	/* CxJRR - JobR Control Register      @800 */
 	u32 jr_ctl_lo;
 	u64 jr_descaddr;	/* CxDADR - JobR Descriptor Address */
+#define DECO_OP_STATUS_HI_ERR_MASK 0xF00000FF
 	u32 op_status_hi;	/* DxOPSTA - DECO Operation Status */
 	u32 op_status_lo;
 	u32 rsvd24[2];
-- 
cgit 


From 0c21fccd97f0ff58e6e9699370a09f6ec8946061 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 13 Sep 2013 10:44:44 +0300
Subject: ALSA: asihpi: a couple array out of bounds issues

These ->put() functions are called from snd_ctl_elem_write() with user
supplied data.  snd_asihpi_tuner_band_put() is missing a limit check and
the check in snd_asihpi_clksrc_put() can underflow.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/asihpi/asihpi.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/sound/pci/asihpi/asihpi.c b/sound/pci/asihpi/asihpi.c
index dc632cdc3870..5f2acd35dcb9 100644
--- a/sound/pci/asihpi/asihpi.c
+++ b/sound/pci/asihpi/asihpi.c
@@ -1913,6 +1913,7 @@ static int snd_asihpi_tuner_band_put(struct snd_kcontrol *kcontrol,
 	struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol);
 	*/
 	u32 h_control = kcontrol->private_value;
+	unsigned int idx;
 	u16 band;
 	u16 tuner_bands[HPI_TUNER_BAND_LAST];
 	u32 num_bands = 0;
@@ -1920,7 +1921,10 @@ static int snd_asihpi_tuner_band_put(struct snd_kcontrol *kcontrol,
 	num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands,
 			HPI_TUNER_BAND_LAST);
 
-	band = tuner_bands[ucontrol->value.enumerated.item[0]];
+	idx = ucontrol->value.enumerated.item[0];
+	if (idx >= ARRAY_SIZE(tuner_bands))
+		idx = ARRAY_SIZE(tuner_bands) - 1;
+	band = tuner_bands[idx];
 	hpi_handle_error(hpi_tuner_set_band(h_control, band));
 
 	return 1;
@@ -2383,7 +2387,8 @@ static int snd_asihpi_clksrc_put(struct snd_kcontrol *kcontrol,
 	struct snd_card_asihpi *asihpi =
 			(struct snd_card_asihpi *)(kcontrol->private_data);
 	struct clk_cache *clkcache = &asihpi->cc;
-	int change, item;
+	unsigned int item;
+	int change;
 	u32 h_control = kcontrol->private_value;
 
 	change = 1;
-- 
cgit 


From b71495ee425943afd80b8188e5c273254b3557a2 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 13 Sep 2013 15:14:21 +0530
Subject: ALSA: ctxfi: Staticize local symbols

Local symbols used only in this file are made static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/ctxfi/ctdaio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/pci/ctxfi/ctdaio.c b/sound/pci/ctxfi/ctdaio.c
index 0c00eb4088ef..84f86bf63b8f 100644
--- a/sound/pci/ctxfi/ctdaio.c
+++ b/sound/pci/ctxfi/ctdaio.c
@@ -33,7 +33,7 @@ struct daio_rsc_idx {
 	unsigned short right;
 };
 
-struct daio_rsc_idx idx_20k1[NUM_DAIOTYP] = {
+static struct daio_rsc_idx idx_20k1[NUM_DAIOTYP] = {
 	[LINEO1] = {.left = 0x00, .right = 0x01},
 	[LINEO2] = {.left = 0x18, .right = 0x19},
 	[LINEO3] = {.left = 0x08, .right = 0x09},
@@ -44,7 +44,7 @@ struct daio_rsc_idx idx_20k1[NUM_DAIOTYP] = {
 	[SPDIFI1] = {.left = 0x95, .right = 0x9d},
 };
 
-struct daio_rsc_idx idx_20k2[NUM_DAIOTYP] = {
+static struct daio_rsc_idx idx_20k2[NUM_DAIOTYP] = {
 	[LINEO1] = {.left = 0x40, .right = 0x41},
 	[LINEO2] = {.left = 0x60, .right = 0x61},
 	[LINEO3] = {.left = 0x50, .right = 0x51},
-- 
cgit 


From 399ae7254e13de9239d74574f9fc39fb91a536cf Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 13 Sep 2013 15:14:22 +0530
Subject: ALSA: hda/ca0132: Staticize codec_send_command

'codec_send_command' is used only in this file. Make it static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_ca0132.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index 6e9876f27d95..54d14793725a 100644
--- a/sound/pci/hda/patch_ca0132.c
+++ b/sound/pci/hda/patch_ca0132.c
@@ -759,7 +759,7 @@ struct ca0132_spec {
 /*
  * CA0132 codec access
  */
-unsigned int codec_send_command(struct hda_codec *codec, hda_nid_t nid,
+static unsigned int codec_send_command(struct hda_codec *codec, hda_nid_t nid,
 		unsigned int verb, unsigned int parm, unsigned int *res)
 {
 	unsigned int response;
-- 
cgit 


From 79ae92dd24bb673dd5ddafdbc27cbf4a1e419525 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 13 Sep 2013 16:03:15 +0530
Subject: ALSA: au88x0: Remove redundant break

'break' after a return statement is redundant. Remove it.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/au88x0/au88x0_synth.c | 29 ++++++++++-------------------
 1 file changed, 10 insertions(+), 19 deletions(-)

diff --git a/sound/pci/au88x0/au88x0_synth.c b/sound/pci/au88x0/au88x0_synth.c
index 8bef47311e45..922a84bba2ef 100644
--- a/sound/pci/au88x0/au88x0_synth.c
+++ b/sound/pci/au88x0/au88x0_synth.c
@@ -219,7 +219,6 @@ vortex_wt_SetReg(vortex_t * vortex, unsigned char reg, int wt,
 		*/
 		hwwrite(vortex->mmio, WT_RUN(wt), val);
 		return 0xc;
-		break;
 	case 1:		/* param 0 */
 		/*
 		printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n",
@@ -227,7 +226,6 @@ vortex_wt_SetReg(vortex_t * vortex, unsigned char reg, int wt,
 		*/
 		hwwrite(vortex->mmio, WT_PARM(wt, 0), val);
 		return 0xc;
-		break;
 	case 2:		/* param 1 */
 		/*
 		printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n",
@@ -235,7 +233,6 @@ vortex_wt_SetReg(vortex_t * vortex, unsigned char reg, int wt,
 		*/
 		hwwrite(vortex->mmio, WT_PARM(wt, 1), val);
 		return 0xc;
-		break;
 	case 3:		/* param 2 */
 		/*
 		printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n",
@@ -243,7 +240,6 @@ vortex_wt_SetReg(vortex_t * vortex, unsigned char reg, int wt,
 		*/
 		hwwrite(vortex->mmio, WT_PARM(wt, 2), val);
 		return 0xc;
-		break;
 	case 4:		/* param 3 */
 		/*
 		printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n",
@@ -251,7 +247,6 @@ vortex_wt_SetReg(vortex_t * vortex, unsigned char reg, int wt,
 		*/
 		hwwrite(vortex->mmio, WT_PARM(wt, 3), val);
 		return 0xc;
-		break;
 	case 6:		/* mute */
 		/*
 		printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n",
@@ -259,20 +254,17 @@ vortex_wt_SetReg(vortex_t * vortex, unsigned char reg, int wt,
 		*/
 		hwwrite(vortex->mmio, WT_MUTE(wt), val);
 		return 0xc;
-		break;
 	case 0xb:
-		{		/* delay */
-			/*
-			printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n",
-			       WT_DELAY(wt,0), (int)val);
-			*/
-			hwwrite(vortex->mmio, WT_DELAY(wt, 3), val);
-			hwwrite(vortex->mmio, WT_DELAY(wt, 2), val);
-			hwwrite(vortex->mmio, WT_DELAY(wt, 1), val);
-			hwwrite(vortex->mmio, WT_DELAY(wt, 0), val);
-			return 0xc;
-		}
-		break;
+			/* delay */
+		/*
+		printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n",
+		       WT_DELAY(wt,0), (int)val);
+		*/
+		hwwrite(vortex->mmio, WT_DELAY(wt, 3), val);
+		hwwrite(vortex->mmio, WT_DELAY(wt, 2), val);
+		hwwrite(vortex->mmio, WT_DELAY(wt, 1), val);
+		hwwrite(vortex->mmio, WT_DELAY(wt, 0), val);
+		return 0xc;
 		/* Global WT block parameters */
 	case 5:		/* sramp */
 		ecx = WT_SRAMP(wt);
@@ -291,7 +283,6 @@ vortex_wt_SetReg(vortex_t * vortex, unsigned char reg, int wt,
 		break;
 	default:
 		return 0;
-		break;
 	}
 	/*
 	printk(KERN_DEBUG "vortex: WT SetReg(0x%x) = 0x%08x\n", ecx, (int)val);
-- 
cgit 


From bf69aa906ccddacc9e966794869431374953738a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 13 Sep 2013 16:18:59 +0530
Subject: ALSA: rme9652: Remove redundant break

'break' after return statement is not necessary.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/rme9652/hdspm.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index 3cde55b753e2..2907e68150cb 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -3996,7 +3996,6 @@ static int hdspm_tco_sync_check(struct hdspm *hdspm)
 					return 1;
 			}
 			return 0;
-			break;
 		case AES32:
 			status = hdspm_read(hdspm, HDSPM_statusRegister);
 			if (status & HDSPM_tcoLockAes) {
@@ -4006,9 +4005,6 @@ static int hdspm_tco_sync_check(struct hdspm *hdspm)
 					return 1;
 			}
 			return 0;
-
-			break;
-
 		case RayDAT:
 		case AIO:
 			status = hdspm_read(hdspm, HDSPM_RD_STATUS_1);
@@ -4018,7 +4014,6 @@ static int hdspm_tco_sync_check(struct hdspm *hdspm)
 			if (status & 0x4000000)
 				return 1; /* Lock */
 			return 0; /* No signal */
-			break;
 
 		default:
 			break;
-- 
cgit 


From 3c533efca084527b4c91fbc43b963828c9410104 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 11 Sep 2013 11:20:00 +0100
Subject: iio: gyro: adis16130: Remove redundant break

'break' after return is redundant. Remove it.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/gyro/adis16130.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/iio/gyro/adis16130.c b/drivers/iio/gyro/adis16130.c
index ac66fc184042..9155cf6cf287 100644
--- a/drivers/iio/gyro/adis16130.c
+++ b/drivers/iio/gyro/adis16130.c
@@ -103,7 +103,6 @@ static int adis16130_read_raw(struct iio_dev *indio_dev,
 		default:
 			return -EINVAL;
 		}
-		break;
 	case IIO_CHAN_INFO_OFFSET:
 		switch (chan->type) {
 		case IIO_ANGL_VEL:
@@ -115,7 +114,6 @@ static int adis16130_read_raw(struct iio_dev *indio_dev,
 		default:
 			return -EINVAL;
 		}
-		break;
 	}
 
 	return -EINVAL;
-- 
cgit 


From 356e9fa4e59afe0a63bcd519504ed3f64b83ab24 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 11 Sep 2013 11:20:00 +0100
Subject: iio: gyro: adis16260: Remove redundant break

'break' after return is redundant. Remove it.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/gyro/adis16260.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/iio/gyro/adis16260.c b/drivers/iio/gyro/adis16260.c
index 06541162fc02..22b6fb80fa1a 100644
--- a/drivers/iio/gyro/adis16260.c
+++ b/drivers/iio/gyro/adis16260.c
@@ -239,7 +239,6 @@ static int adis16260_read_raw(struct iio_dev *indio_dev,
 		default:
 			return -EINVAL;
 		}
-		break;
 	case IIO_CHAN_INFO_OFFSET:
 		*val = 250000 / 1453; /* 25 C = 0x00 */
 		return IIO_VAL_INT;
-- 
cgit 


From 52c77c3dcb1c5daa32e2952f6d7f2835abc811a5 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 11 Sep 2013 11:20:00 +0100
Subject: iio: gyro: adxrs450: Remove redundant break

'break' after return is redundant. Remove it.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/gyro/adxrs450.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/iio/gyro/adxrs450.c b/drivers/iio/gyro/adxrs450.c
index 6dab2995f0f2..c1f40efbf639 100644
--- a/drivers/iio/gyro/adxrs450.c
+++ b/drivers/iio/gyro/adxrs450.c
@@ -354,7 +354,6 @@ static int adxrs450_read_raw(struct iio_dev *indio_dev,
 		default:
 			return -EINVAL;
 		}
-		break;
 	case IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW:
 		ret = adxrs450_spi_read_reg_16(indio_dev, ADXRS450_QUAD1, &t);
 		if (ret)
-- 
cgit 


From 540e4dbead08cce5b156cb4e56115f451d9fc74a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 11 Sep 2013 11:20:00 +0100
Subject: iio: dac: ad5686: Remove redundant break

'break' after return is redundant. Remove it.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/ad5686.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/iio/dac/ad5686.c b/drivers/iio/dac/ad5686.c
index 57825ead7db2..3e1080feedbf 100644
--- a/drivers/iio/dac/ad5686.c
+++ b/drivers/iio/dac/ad5686.c
@@ -213,7 +213,6 @@ static int ad5686_read_raw(struct iio_dev *indio_dev,
 			return ret;
 		*val = ret;
 		return IIO_VAL_INT;
-		break;
 	case IIO_CHAN_INFO_SCALE:
 		scale_uv = (st->vref_mv * 100000)
 			>> (chan->scan_type.realbits);
-- 
cgit 


From 9e4904c17560b8936a94aeadca8db909ba777ed8 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 11 Sep 2013 11:20:00 +0100
Subject: staging: iio: tsl2x7x_core: Remove redundant break

'break' after return is redundant. Remove it.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/light/tsl2x7x_core.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/staging/iio/light/tsl2x7x_core.c b/drivers/staging/iio/light/tsl2x7x_core.c
index 3439d378efbf..9c43dcf444c2 100644
--- a/drivers/staging/iio/light/tsl2x7x_core.c
+++ b/drivers/staging/iio/light/tsl2x7x_core.c
@@ -951,7 +951,6 @@ static ssize_t tsl2x7x_gain_available_show(struct device *dev,
 	case tsl2771:
 	case tmd2771:
 		return snprintf(buf, PAGE_SIZE, "%s\n", "1 8 16 128");
-	break;
 	}
 
 	return snprintf(buf, PAGE_SIZE, "%s\n", "1 8 16 120");
@@ -1346,7 +1345,6 @@ static int tsl2x7x_read_raw(struct iio_dev *indio_dev,
 			break;
 		default:
 			return -EINVAL;
-			break;
 		}
 		break;
 	case IIO_CHAN_INFO_RAW:
@@ -1366,7 +1364,6 @@ static int tsl2x7x_read_raw(struct iio_dev *indio_dev,
 			break;
 		default:
 			return -EINVAL;
-			break;
 		}
 		break;
 	case IIO_CHAN_INFO_CALIBSCALE:
@@ -1419,7 +1416,6 @@ static int tsl2x7x_write_raw(struct iio_dev *indio_dev,
 				case tsl2772:
 				case tmd2772:
 					return -EINVAL;
-				break;
 				}
 				chip->tsl2x7x_settings.als_gain = 3;
 				break;
@@ -1431,7 +1427,6 @@ static int tsl2x7x_write_raw(struct iio_dev *indio_dev,
 				case tsl2771:
 				case tmd2771:
 					return -EINVAL;
-				break;
 				}
 				chip->tsl2x7x_settings.als_gain = 3;
 				break;
@@ -1508,18 +1503,15 @@ static int tsl2x7x_device_id(unsigned char *id, int target)
 	case tsl2671:
 	case tsl2771:
 		return ((*id & 0xf0) == TRITON_ID);
-	break;
 	case tmd2671:
 	case tmd2771:
 		return ((*id & 0xf0) == HALIBUT_ID);
-	break;
 	case tsl2572:
 	case tsl2672:
 	case tmd2672:
 	case tsl2772:
 	case tmd2772:
 		return ((*id & 0xf0) == SWORDFISH_ID);
-	break;
 	}
 
 	return -EINVAL;
-- 
cgit 


From 8d1b0b4887bce5fe50a371ccb7e650dcc413bab0 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 11 Sep 2013 10:55:00 +0100
Subject: staging: iio: ad2s1200: Use devm_* APIs

devm_* APIs are device managed and make code simpler.
This patch also fixes the missing gpio_free call in remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Graff Yang <graff.yang@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/resolver/ad2s1200.c | 24 ++++++++----------------
 1 file changed, 8 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/iio/resolver/ad2s1200.c b/drivers/staging/iio/resolver/ad2s1200.c
index 71221161aa6b..76f6d653fbeb 100644
--- a/drivers/staging/iio/resolver/ad2s1200.c
+++ b/drivers/staging/iio/resolver/ad2s1200.c
@@ -107,16 +107,16 @@ static int ad2s1200_probe(struct spi_device *spi)
 	unsigned short *pins = spi->dev.platform_data;
 
 	for (pn = 0; pn < AD2S1200_PN; pn++)
-		if (gpio_request_one(pins[pn], GPIOF_DIR_OUT, DRV_NAME)) {
+		ret = devm_gpio_request_one(&spi->dev, pins[pn], GPIOF_DIR_OUT,
+					    DRV_NAME);
+		if (ret) {
 			pr_err("%s: request gpio pin %d failed\n",
 						DRV_NAME, pins[pn]);
-			goto error_ret;
+			return ret;
 		}
-	indio_dev = iio_device_alloc(sizeof(*st));
-	if (indio_dev == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+	if (!indio_dev)
+		return -ENOMEM;
 	spi_set_drvdata(spi, indio_dev);
 	st = iio_priv(indio_dev);
 	mutex_init(&st->lock);
@@ -133,26 +133,18 @@ static int ad2s1200_probe(struct spi_device *spi)
 
 	ret = iio_device_register(indio_dev);
 	if (ret)
-		goto error_free_dev;
+		return ret;
 
 	spi->max_speed_hz = AD2S1200_HZ;
 	spi->mode = SPI_MODE_3;
 	spi_setup(spi);
 
 	return 0;
-
-error_free_dev:
-	iio_device_free(indio_dev);
-error_ret:
-	for (--pn; pn >= 0; pn--)
-		gpio_free(pins[pn]);
-	return ret;
 }
 
 static int ad2s1200_remove(struct spi_device *spi)
 {
 	iio_device_unregister(spi_get_drvdata(spi));
-	iio_device_free(spi_get_drvdata(spi));
 
 	return 0;
 }
-- 
cgit 


From a20df3fe4636aaede5d0e78408812e30a7b15baf Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 11 Sep 2013 10:55:00 +0100
Subject: staging: iio: ad2s1200: Use dev_err instead of pr_err

dev_err is preferred over pr_err.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/resolver/ad2s1200.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/iio/resolver/ad2s1200.c b/drivers/staging/iio/resolver/ad2s1200.c
index 76f6d653fbeb..62d30179301f 100644
--- a/drivers/staging/iio/resolver/ad2s1200.c
+++ b/drivers/staging/iio/resolver/ad2s1200.c
@@ -110,8 +110,8 @@ static int ad2s1200_probe(struct spi_device *spi)
 		ret = devm_gpio_request_one(&spi->dev, pins[pn], GPIOF_DIR_OUT,
 					    DRV_NAME);
 		if (ret) {
-			pr_err("%s: request gpio pin %d failed\n",
-						DRV_NAME, pins[pn]);
+			dev_err(&spi->dev, "request gpio pin %d failed\n",
+							pins[pn]);
 			return ret;
 		}
 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
-- 
cgit 


From 50711572c6949f3e5f53f47f7adf2d7c1d5011d9 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 11 Sep 2013 10:55:00 +0100
Subject: staging: iio: ad2s1210: Use devm_iio_device_alloc

devm_iio_device_alloc makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Graff Yang <graff.yang@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/resolver/ad2s1210.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c
index 2b0c8e50654d..6966d5f76648 100644
--- a/drivers/staging/iio/resolver/ad2s1210.c
+++ b/drivers/staging/iio/resolver/ad2s1210.c
@@ -669,16 +669,14 @@ static int ad2s1210_probe(struct spi_device *spi)
 	if (spi->dev.platform_data == NULL)
 		return -EINVAL;
 
-	indio_dev = iio_device_alloc(sizeof(*st));
-	if (indio_dev == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+	if (!indio_dev)
+		return -ENOMEM;
 	st = iio_priv(indio_dev);
 	st->pdata = spi->dev.platform_data;
 	ret = ad2s1210_setup_gpios(st);
 	if (ret < 0)
-		goto error_free_dev;
+		return ret;
 
 	spi_set_drvdata(spi, indio_dev);
 
@@ -709,9 +707,6 @@ static int ad2s1210_probe(struct spi_device *spi)
 
 error_free_gpios:
 	ad2s1210_free_gpios(st);
-error_free_dev:
-	iio_device_free(indio_dev);
-error_ret:
 	return ret;
 }
 
@@ -721,7 +716,6 @@ static int ad2s1210_remove(struct spi_device *spi)
 
 	iio_device_unregister(indio_dev);
 	ad2s1210_free_gpios(iio_priv(indio_dev));
-	iio_device_free(indio_dev);
 
 	return 0;
 }
-- 
cgit 


From 6bba7983bd979c34cbb8a77f9c3e420472bc2c1f Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 11 Sep 2013 10:55:00 +0100
Subject: staging: iio: ad2s90: Use devm_iio_device_alloc

devm_iio_device_alloc makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Graff Yang <graff.yang@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/resolver/ad2s90.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/iio/resolver/ad2s90.c b/drivers/staging/iio/resolver/ad2s90.c
index 40b825286d4a..e24c5890652f 100644
--- a/drivers/staging/iio/resolver/ad2s90.c
+++ b/drivers/staging/iio/resolver/ad2s90.c
@@ -64,11 +64,9 @@ static int ad2s90_probe(struct spi_device *spi)
 	struct ad2s90_state *st;
 	int ret = 0;
 
-	indio_dev = iio_device_alloc(sizeof(*st));
-	if (indio_dev == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+	if (!indio_dev)
+		return -ENOMEM;
 	st = iio_priv(indio_dev);
 	spi_set_drvdata(spi, indio_dev);
 
@@ -83,7 +81,7 @@ static int ad2s90_probe(struct spi_device *spi)
 
 	ret = iio_device_register(indio_dev);
 	if (ret)
-		goto error_free_dev;
+		return ret;
 
 	/* need 600ns between CS and the first falling edge of SCLK */
 	spi->max_speed_hz = 830000;
@@ -91,17 +89,11 @@ static int ad2s90_probe(struct spi_device *spi)
 	spi_setup(spi);
 
 	return 0;
-
-error_free_dev:
-	iio_device_free(indio_dev);
-error_ret:
-	return ret;
 }
 
 static int ad2s90_remove(struct spi_device *spi)
 {
 	iio_device_unregister(spi_get_drvdata(spi));
-	iio_device_free(spi_get_drvdata(spi));
 
 	return 0;
 }
-- 
cgit 


From e7d4eb0e402aa56c3a2f4a4a0a1afb4e18fa41da Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 11 Sep 2013 10:55:00 +0100
Subject: staging: iio: ade7753: Use devm_iio_device_alloc

devm_iio_device_alloc makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Barry Song <21cnbao@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/meter/ade7753.c | 19 +++++--------------
 1 file changed, 5 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/iio/meter/ade7753.c b/drivers/staging/iio/meter/ade7753.c
index f0bba33f3a4e..6200335d12f7 100644
--- a/drivers/staging/iio/meter/ade7753.c
+++ b/drivers/staging/iio/meter/ade7753.c
@@ -497,11 +497,9 @@ static int ade7753_probe(struct spi_device *spi)
 	struct iio_dev *indio_dev;
 
 	/* setup the industrialio driver allocated elements */
-	indio_dev = iio_device_alloc(sizeof(*st));
-	if (indio_dev == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+	if (!indio_dev)
+		return -ENOMEM;
 	/* this is only used for removal purposes */
 	spi_set_drvdata(spi, indio_dev);
 
@@ -517,19 +515,13 @@ static int ade7753_probe(struct spi_device *spi)
 	/* Get the device into a sane initial state */
 	ret = ade7753_initial_setup(indio_dev);
 	if (ret)
-		goto error_free_dev;
+		return ret;
 
 	ret = iio_device_register(indio_dev);
 	if (ret)
-		goto error_free_dev;
+		return ret;
 
 	return 0;
-
-error_free_dev:
-	iio_device_free(indio_dev);
-
-error_ret:
-	return ret;
 }
 
 /* fixme, confirm ordering in this function */
@@ -539,7 +531,6 @@ static int ade7753_remove(struct spi_device *spi)
 
 	iio_device_unregister(indio_dev);
 	ade7753_stop_device(&indio_dev->dev);
-	iio_device_free(indio_dev);
 
 	return 0;
 }
-- 
cgit 


From fde93556b06be5a935e47cf47d04877abb2efe5c Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 11 Sep 2013 10:55:00 +0100
Subject: staging: iio: ade7754: Use devm_iio_device_alloc

devm_iio_device_alloc makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Barry Song <21cnbao@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/meter/ade7754.c | 19 +++++--------------
 1 file changed, 5 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/iio/meter/ade7754.c b/drivers/staging/iio/meter/ade7754.c
index 63a6ad1c4671..2e046f6e4fb4 100644
--- a/drivers/staging/iio/meter/ade7754.c
+++ b/drivers/staging/iio/meter/ade7754.c
@@ -520,11 +520,9 @@ static int ade7754_probe(struct spi_device *spi)
 	struct iio_dev *indio_dev;
 
 	/* setup the industrialio driver allocated elements */
-	indio_dev = iio_device_alloc(sizeof(*st));
-	if (indio_dev == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+	if (!indio_dev)
+		return -ENOMEM;
 	/* this is only used for removal purposes */
 	spi_set_drvdata(spi, indio_dev);
 
@@ -540,18 +538,12 @@ static int ade7754_probe(struct spi_device *spi)
 	/* Get the device into a sane initial state */
 	ret = ade7754_initial_setup(indio_dev);
 	if (ret)
-		goto error_free_dev;
+		return ret;
 	ret = iio_device_register(indio_dev);
 	if (ret)
-		goto error_free_dev;
+		return ret;
 
 	return 0;
-
-error_free_dev:
-	iio_device_free(indio_dev);
-
-error_ret:
-	return ret;
 }
 
 /* fixme, confirm ordering in this function */
@@ -561,7 +553,6 @@ static int ade7754_remove(struct spi_device *spi)
 
 	iio_device_unregister(indio_dev);
 	ade7754_stop_device(&indio_dev->dev);
-	iio_device_free(indio_dev);
 
 	return 0;
 }
-- 
cgit 


From d0060402042942d127ef0c95781a58d485fcaecb Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 11 Sep 2013 10:55:00 +0100
Subject: staging: iio: ade7758_core: Use devm_iio_device_alloc

devm_iio_device_alloc makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Barry Song <21cnbao@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/meter/ade7758_core.c | 20 ++++++--------------
 1 file changed, 6 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c
index 6a627512e2e5..cba183e24838 100644
--- a/drivers/staging/iio/meter/ade7758_core.c
+++ b/drivers/staging/iio/meter/ade7758_core.c
@@ -849,12 +849,11 @@ static int ade7758_probe(struct spi_device *spi)
 {
 	int ret;
 	struct ade7758_state *st;
-	struct iio_dev *indio_dev = iio_device_alloc(sizeof(*st));
+	struct iio_dev *indio_dev;
 
-	if (indio_dev == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+	if (!indio_dev)
+		return -ENOMEM;
 
 	st = iio_priv(indio_dev);
 	/* this is only used for removal purposes */
@@ -862,10 +861,8 @@ static int ade7758_probe(struct spi_device *spi)
 
 	/* Allocate the comms buffers */
 	st->rx = kcalloc(ADE7758_MAX_RX, sizeof(*st->rx), GFP_KERNEL);
-	if (st->rx == NULL) {
-		ret = -ENOMEM;
-		goto error_free_dev;
-	}
+	if (!st->rx)
+		return -ENOMEM;
 	st->tx = kcalloc(ADE7758_MAX_TX, sizeof(*st->tx), GFP_KERNEL);
 	if (st->tx == NULL) {
 		ret = -ENOMEM;
@@ -920,9 +917,6 @@ error_free_tx:
 	kfree(st->tx);
 error_free_rx:
 	kfree(st->rx);
-error_free_dev:
-	iio_device_free(indio_dev);
-error_ret:
 	return ret;
 }
 
@@ -939,8 +933,6 @@ static int ade7758_remove(struct spi_device *spi)
 	kfree(st->tx);
 	kfree(st->rx);
 
-	iio_device_free(indio_dev);
-
 	return 0;
 }
 
-- 
cgit 


From b67637a3e70c61a9197bd9272760388d888c2cf3 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 11 Sep 2013 10:55:00 +0100
Subject: staging: iio: ade7759: Use devm_iio_device_alloc

devm_iio_device_alloc makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Barry Song <21cnbao@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/meter/ade7759.c | 18 +++++-------------
 1 file changed, 5 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/iio/meter/ade7759.c b/drivers/staging/iio/meter/ade7759.c
index c1a3a5dfb71d..145f896aae2b 100644
--- a/drivers/staging/iio/meter/ade7759.c
+++ b/drivers/staging/iio/meter/ade7759.c
@@ -444,11 +444,9 @@ static int ade7759_probe(struct spi_device *spi)
 	struct iio_dev *indio_dev;
 
 	/* setup the industrialio driver allocated elements */
-	indio_dev = iio_device_alloc(sizeof(*st));
-	if (indio_dev == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
+	if (!indio_dev)
+		return -ENOMEM;
 	/* this is only used for removal purposes */
 	spi_set_drvdata(spi, indio_dev);
 
@@ -463,18 +461,13 @@ static int ade7759_probe(struct spi_device *spi)
 	/* Get the device into a sane initial state */
 	ret = ade7759_initial_setup(indio_dev);
 	if (ret)
-		goto error_free_dev;
+		return ret;
 
 	ret = iio_device_register(indio_dev);
 	if (ret)
-		goto error_free_dev;
+		return ret;
 
 	return 0;
-
-error_free_dev:
-	iio_device_free(indio_dev);
-error_ret:
-	return ret;
 }
 
 /* fixme, confirm ordering in this function */
@@ -484,7 +477,6 @@ static int ade7759_remove(struct spi_device *spi)
 
 	iio_device_unregister(indio_dev);
 	ade7759_stop_device(&indio_dev->dev);
-	iio_device_free(indio_dev);
 
 	return 0;
 }
-- 
cgit 


From b909459f1557f62d2af7eee5f080ac0b540923e7 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 11 Sep 2013 10:55:00 +0100
Subject: staging: iio: ade7854: Use devm_iio_device_alloc

devm_iio_device_alloc makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Barry Song <21cnbao@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/meter/ade7854-i2c.c | 4 +---
 drivers/staging/iio/meter/ade7854-spi.c | 4 +---
 drivers/staging/iio/meter/ade7854.c     | 6 +-----
 3 files changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/iio/meter/ade7854-i2c.c b/drivers/staging/iio/meter/ade7854-i2c.c
index db9ef6c86c1e..5b33c7f1aa91 100644
--- a/drivers/staging/iio/meter/ade7854-i2c.c
+++ b/drivers/staging/iio/meter/ade7854-i2c.c
@@ -208,7 +208,7 @@ static int ade7854_i2c_probe(struct i2c_client *client,
 	struct ade7854_state *st;
 	struct iio_dev *indio_dev;
 
-	indio_dev = iio_device_alloc(sizeof(*st));
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*st));
 	if (indio_dev == NULL)
 		return -ENOMEM;
 	st = iio_priv(indio_dev);
@@ -225,8 +225,6 @@ static int ade7854_i2c_probe(struct i2c_client *client,
 	st->irq = client->irq;
 
 	ret = ade7854_probe(indio_dev, &client->dev);
-	if (ret)
-		iio_device_free(indio_dev);
 
 	return ret;
 }
diff --git a/drivers/staging/iio/meter/ade7854-spi.c b/drivers/staging/iio/meter/ade7854-spi.c
index a802cf2491d6..7cb8d931625c 100644
--- a/drivers/staging/iio/meter/ade7854-spi.c
+++ b/drivers/staging/iio/meter/ade7854-spi.c
@@ -278,7 +278,7 @@ static int ade7854_spi_probe(struct spi_device *spi)
 	struct ade7854_state *st;
 	struct iio_dev *indio_dev;
 
-	indio_dev = iio_device_alloc(sizeof(*st));
+	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
 	if (indio_dev == NULL)
 		return -ENOMEM;
 	st = iio_priv(indio_dev);
@@ -296,8 +296,6 @@ static int ade7854_spi_probe(struct spi_device *spi)
 
 
 	ret = ade7854_probe(indio_dev, &spi->dev);
-	if (ret)
-		iio_device_free(indio_dev);
 
 	return 0;
 }
diff --git a/drivers/staging/iio/meter/ade7854.c b/drivers/staging/iio/meter/ade7854.c
index 8e068abde698..d620bbd603a3 100644
--- a/drivers/staging/iio/meter/ade7854.c
+++ b/drivers/staging/iio/meter/ade7854.c
@@ -550,7 +550,7 @@ int ade7854_probe(struct iio_dev *indio_dev, struct device *dev)
 
 	ret = iio_device_register(indio_dev);
 	if (ret)
-		goto error_free_dev;
+		return ret;
 
 	/* Get the device into a sane initial state */
 	ret = ade7854_initial_setup(indio_dev);
@@ -561,9 +561,6 @@ int ade7854_probe(struct iio_dev *indio_dev, struct device *dev)
 
 error_unreg_dev:
 	iio_device_unregister(indio_dev);
-error_free_dev:
-	iio_device_free(indio_dev);
-
 	return ret;
 }
 EXPORT_SYMBOL(ade7854_probe);
@@ -571,7 +568,6 @@ EXPORT_SYMBOL(ade7854_probe);
 int ade7854_remove(struct iio_dev *indio_dev)
 {
 	iio_device_unregister(indio_dev);
-	iio_device_free(indio_dev);
 
 	return 0;
 }
-- 
cgit 


From 899d90bdf4d4ef4c3ac0b33cd337c9b3e999ec2d Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Sun, 8 Sep 2013 16:20:00 +0100
Subject: iio: Add INT_TIME (integration time) channel info attribute

Integration time is in seconds; it controls the measurement
time and influences the gain of a sensor.

There are two typical ways that scaling is implemented in a device:
1) input amplifier,
2) reference to the ADC is changed.
These both result in the accuracy of the ADC varying (by applying its
sampling over a more relevant range).

Integration time is a way of dealing with noise inherent in the analog
sensor itself.  In the case of a light sensor, a mixture of photon noise
and device specific noise.  Photon noise is dealt with by either improving
the efficiency of the sensor, (more photons actually captured) which is not
easily varied dynamically, or by integrating the measurement over a longer
time period.  Note that this can also be thought of as an averaging of a
number of individual samples and is infact sometimes implemented this way.
Altering integration time implies that the duration of a measurement changes,
a fact the device's user may be interested in.

Hence it makes sense to distinguish between integration time and simple
scale. In some devices both types of control are present and whilst they
will have similar effects on the amplitude of the reading, their effect
on the noise of the measurements will differ considerably.

Used by adjd_s311, tsl4531, tcs3472
The following drivers have similar controls (and could be adapted):
* tsl2563 (integration time is controlled via CALIBSCALE among other things)
* tsl2583 (has integration_time device_attr, but driver doesn't use channels yet)
* tsl2x7x (has integration_time attr)

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Cc: Jon Brenner <jon.brenner@ams.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 Documentation/ABI/testing/sysfs-bus-iio | 11 +++++++++++
 drivers/iio/industrialio-core.c         |  1 +
 include/linux/iio/iio.h                 |  1 +
 include/linux/iio/sysfs.h               | 15 +++++++++++++++
 4 files changed, 28 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 39c8de0e53d0..ab1047c20495 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -811,3 +811,14 @@ Description:
 		Writing '1' stores the current device configuration into
 		on-chip EEPROM. After power-up or chip reset the device will
 		automatically load the saved configuration.
+
+What:		/sys/.../iio:deviceX/in_intensity_red_integration_time
+What:		/sys/.../iio:deviceX/in_intensity_green_integration_time
+What:		/sys/.../iio:deviceX/in_intensity_blue_integration_time
+What:		/sys/.../iio:deviceX/in_intensity_clear_integration_time
+What:		/sys/.../iio:deviceX/in_illuminance_integration_time
+KernelVersion:	3.12
+Contact:	linux-iio@vger.kernel.org
+Description:
+		This attribute is used to get/set the integration time in
+		seconds.
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 97f0297b120f..2cb4841d5357 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -101,6 +101,7 @@ static const char * const iio_chan_info_postfix[] = {
 	[IIO_CHAN_INFO_PHASE] = "phase",
 	[IIO_CHAN_INFO_HARDWAREGAIN] = "hardwaregain",
 	[IIO_CHAN_INFO_HYSTERESIS] = "hysteresis",
+	[IIO_CHAN_INFO_INT_TIME] = "integration_time",
 };
 
 const struct iio_chan_spec
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index 8e7a8132b109..01edd6795550 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -36,6 +36,7 @@ enum iio_chan_info_enum {
 	IIO_CHAN_INFO_PHASE,
 	IIO_CHAN_INFO_HARDWAREGAIN,
 	IIO_CHAN_INFO_HYSTERESIS,
+	IIO_CHAN_INFO_INT_TIME,
 };
 
 enum iio_endian {
diff --git a/include/linux/iio/sysfs.h b/include/linux/iio/sysfs.h
index 2958c960003a..8a1d18640ab9 100644
--- a/include/linux/iio/sysfs.h
+++ b/include/linux/iio/sysfs.h
@@ -100,6 +100,21 @@ struct iio_const_attr {
 #define IIO_CONST_ATTR_SAMP_FREQ_AVAIL(_string)			\
 	IIO_CONST_ATTR(sampling_frequency_available, _string)
 
+/**
+ * IIO_DEV_ATTR_INT_TIME_AVAIL - list available integration times
+ * @_show: output method for the attribute
+ **/
+#define IIO_DEV_ATTR_INT_TIME_AVAIL(_show)		\
+	IIO_DEVICE_ATTR(integration_time_available, S_IRUGO, _show, NULL, 0)
+/**
+ * IIO_CONST_ATTR_INT_TIME_AVAIL - list available integration times
+ * @_string: frequency string for the attribute
+ *
+ * Constant version
+ **/
+#define IIO_CONST_ATTR_INT_TIME_AVAIL(_string)		\
+	IIO_CONST_ATTR(integration_time_available, _string)
+
 #define IIO_DEV_ATTR_TEMP_RAW(_show)			\
 	IIO_DEVICE_ATTR(in_temp_raw, S_IRUGO, _show, NULL, 0)
 
-- 
cgit 


From caeac374224a8fc180795499fbef04ee7e1ba597 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Sun, 8 Sep 2013 16:20:00 +0100
Subject: iio: adjd_s311: Use INT_TIME channel info

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/light/adjd_s311.c | 72 +++++++++++++------------------------------
 1 file changed, 21 insertions(+), 51 deletions(-)

diff --git a/drivers/iio/light/adjd_s311.c b/drivers/iio/light/adjd_s311.c
index 00ab980f8e3c..c0da351b1c2e 100644
--- a/drivers/iio/light/adjd_s311.c
+++ b/drivers/iio/light/adjd_s311.c
@@ -114,43 +114,6 @@ static int adjd_s311_read_data(struct iio_dev *indio_dev, u8 reg, int *val)
 	return 0;
 }
 
-static ssize_t adjd_s311_read_int_time(struct iio_dev *indio_dev,
-	uintptr_t private, const struct iio_chan_spec *chan, char *buf)
-{
-	struct adjd_s311_data *data = iio_priv(indio_dev);
-	s32 ret;
-
-	ret = i2c_smbus_read_word_data(data->client,
-		ADJD_S311_INT_REG(chan->address));
-	if (ret < 0)
-		return ret;
-
-	return sprintf(buf, "%d\n", ret & ADJD_S311_INT_MASK);
-}
-
-static ssize_t adjd_s311_write_int_time(struct iio_dev *indio_dev,
-	 uintptr_t private, const struct iio_chan_spec *chan, const char *buf,
-	 size_t len)
-{
-	struct adjd_s311_data *data = iio_priv(indio_dev);
-	unsigned long int_time;
-	int ret;
-
-	ret = kstrtoul(buf, 10, &int_time);
-	if (ret)
-		return ret;
-
-	if (int_time > ADJD_S311_INT_MASK)
-		return -EINVAL;
-
-	ret = i2c_smbus_write_word_data(data->client,
-		ADJD_S311_INT_REG(chan->address), int_time);
-	if (ret < 0)
-		return ret;
-
-	return len;
-}
-
 static irqreturn_t adjd_s311_trigger_handler(int irq, void *p)
 {
 	struct iio_poll_func *pf = p;
@@ -186,25 +149,16 @@ done:
 	return IRQ_HANDLED;
 }
 
-static const struct iio_chan_spec_ext_info adjd_s311_ext_info[] = {
-	{
-		.name = "integration_time",
-		.read = adjd_s311_read_int_time,
-		.write = adjd_s311_write_int_time,
-	},
-	{ }
-};
-
 #define ADJD_S311_CHANNEL(_color, _scan_idx) { \
 	.type = IIO_INTENSITY, \
 	.modified = 1, \
 	.address = (IDX_##_color), \
 	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
-		BIT(IIO_CHAN_INFO_HARDWAREGAIN), \
+		BIT(IIO_CHAN_INFO_HARDWAREGAIN) | \
+		BIT(IIO_CHAN_INFO_INT_TIME), \
 	.channel2 = (IIO_MOD_LIGHT_##_color), \
 	.scan_index = (_scan_idx), \
 	.scan_type = IIO_ST('u', 10, 16, 0), \
-	.ext_info = adjd_s311_ext_info, \
 }
 
 static const struct iio_chan_spec adjd_s311_channels[] = {
@@ -235,6 +189,18 @@ static int adjd_s311_read_raw(struct iio_dev *indio_dev,
 			return ret;
 		*val = ret & ADJD_S311_CAP_MASK;
 		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_INT_TIME:
+		ret = i2c_smbus_read_word_data(data->client,
+			ADJD_S311_INT_REG(chan->address));
+		if (ret < 0)
+			return ret;
+		*val = 0;
+		/*
+		 * not documented, based on measurement:
+		 * 4095 LSBs correspond to roughly 4 ms
+		 */
+		*val2 = ret & ADJD_S311_INT_MASK;
+		return IIO_VAL_INT_PLUS_MICRO;
 	}
 	return -EINVAL;
 }
@@ -244,16 +210,20 @@ static int adjd_s311_write_raw(struct iio_dev *indio_dev,
 			       int val, int val2, long mask)
 {
 	struct adjd_s311_data *data = iio_priv(indio_dev);
-	int ret;
 
 	switch (mask) {
 	case IIO_CHAN_INFO_HARDWAREGAIN:
 		if (val < 0 || val > ADJD_S311_CAP_MASK)
 			return -EINVAL;
 
-		ret = i2c_smbus_write_byte_data(data->client,
+		return i2c_smbus_write_byte_data(data->client,
 			ADJD_S311_CAP_REG(chan->address), val);
-		return ret;
+	case IIO_CHAN_INFO_INT_TIME:
+		if (val != 0 || val2 < 0 || val2 > ADJD_S311_INT_MASK)
+			return -EINVAL;
+
+		return i2c_smbus_write_word_data(data->client,
+			ADJD_S311_INT_REG(chan->address), val2);
 	}
 	return -EINVAL;
 }
-- 
cgit 


From aab9ba7eb2633927d0010f00c3bc7960efcd3c23 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Sun, 8 Sep 2013 16:20:00 +0100
Subject: iio: Add tsl4531 ambient light sensor driver

driver for the TSL4531 family of 16-bit I2C ambient light
sensors; information is here:
http://www.ams.com/eng/Products/Light-Sensors/Ambient-Light-Sensor-ALS/TSL45315

the chip offers simple lux output

v3 (thanks Lars-Peter Clausen):
* add mutex to when updating integration time
* fix chip ID checking
* code cleanups
v2:
* rename to tsl4351
* use INT_TIME

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/light/Kconfig   |  10 ++
 drivers/iio/light/Makefile  |   1 +
 drivers/iio/light/tsl4531.c | 258 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 269 insertions(+)
 create mode 100644 drivers/iio/light/tsl4531.c

diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig
index bf9fa0d7aff9..488fff7cd80d 100644
--- a/drivers/iio/light/Kconfig
+++ b/drivers/iio/light/Kconfig
@@ -65,6 +65,16 @@ config SENSORS_TSL2563
 	 This driver can also be built as a module.  If so, the module
 	 will be called tsl2563.
 
+config TSL4531
+	tristate "TAOS TSL4531 ambient light sensors"
+	depends on I2C
+	help
+	 Say Y here if you want to build a driver for the TAOS TSL4531 family
+	 of ambient light sensors with direct lux output.
+
+	 To compile this driver as a module, choose M here: the
+	 module will be called tsl4531.
+
 config VCNL4000
 	tristate "VCNL4000 combined ALS and proximity sensor"
 	depends on I2C
diff --git a/drivers/iio/light/Makefile b/drivers/iio/light/Makefile
index 354ee9ab2379..cd6f3cfe6259 100644
--- a/drivers/iio/light/Makefile
+++ b/drivers/iio/light/Makefile
@@ -8,4 +8,5 @@ obj-$(CONFIG_APDS9300)		+= apds9300.o
 obj-$(CONFIG_HID_SENSOR_ALS)	+= hid-sensor-als.o
 obj-$(CONFIG_SENSORS_LM3533)	+= lm3533-als.o
 obj-$(CONFIG_SENSORS_TSL2563)	+= tsl2563.o
+obj-$(CONFIG_TSL4531)		+= tsl4531.o
 obj-$(CONFIG_VCNL4000)		+= vcnl4000.o
diff --git a/drivers/iio/light/tsl4531.c b/drivers/iio/light/tsl4531.c
new file mode 100644
index 000000000000..a15006efa137
--- /dev/null
+++ b/drivers/iio/light/tsl4531.c
@@ -0,0 +1,258 @@
+/*
+ * tsl4531.c - Support for TAOS TSL4531 ambient light sensor
+ *
+ * Copyright 2013 Peter Meerwald <pmeerw@pmeerw.net>
+ *
+ * This file is subject to the terms and conditions of version 2 of
+ * the GNU General Public License.  See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * IIO driver for the TSL4531x family
+ *   TSL45311/TSL45313: 7-bit I2C slave address 0x39
+ *   TSL45315/TSL45317: 7-bit I2C slave address 0x29
+ *
+ * TODO: single cycle measurement
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/err.h>
+#include <linux/delay.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+
+#define TSL4531_DRV_NAME "tsl4531"
+
+#define TCS3472_COMMAND BIT(7)
+
+#define TSL4531_CONTROL (TCS3472_COMMAND | 0x00)
+#define TSL4531_CONFIG (TCS3472_COMMAND | 0x01)
+#define TSL4531_DATA (TCS3472_COMMAND | 0x04)
+#define TSL4531_ID (TCS3472_COMMAND | 0x0a)
+
+/* operating modes in control register */
+#define TSL4531_MODE_POWERDOWN 0x00
+#define TSL4531_MODE_SINGLE_ADC 0x02
+#define TSL4531_MODE_NORMAL 0x03
+
+/* integration time control in config register */
+#define TSL4531_TCNTRL_400MS 0x00
+#define TSL4531_TCNTRL_200MS 0x01
+#define TSL4531_TCNTRL_100MS 0x02
+
+/* part number in id register */
+#define TSL45311_ID 0x8
+#define TSL45313_ID 0x9
+#define TSL45315_ID 0xa
+#define TSL45317_ID 0xb
+#define TSL4531_ID_SHIFT 4
+
+struct tsl4531_data {
+	struct i2c_client *client;
+	struct mutex lock;
+	int int_time;
+};
+
+static IIO_CONST_ATTR_INT_TIME_AVAIL("0.1 0.2 0.4");
+
+static struct attribute *tsl4531_attributes[] = {
+	&iio_const_attr_integration_time_available.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group tsl4531_attribute_group = {
+	.attrs = tsl4531_attributes,
+};
+
+static const struct iio_chan_spec tsl4531_channels[] = {
+	{
+		.type = IIO_LIGHT,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+			BIT(IIO_CHAN_INFO_SCALE) |
+			BIT(IIO_CHAN_INFO_INT_TIME)
+	}
+};
+
+static int tsl4531_read_raw(struct iio_dev *indio_dev,
+				struct iio_chan_spec const *chan,
+				int *val, int *val2, long mask)
+{
+	struct tsl4531_data *data = iio_priv(indio_dev);
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		ret = i2c_smbus_read_word_data(data->client,
+			TSL4531_DATA);
+		if (ret < 0)
+			return ret;
+		*val = ret;
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		/* 0.. 1x, 1 .. 2x, 2 .. 4x */
+		*val = 1 << data->int_time;
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_INT_TIME:
+		if (data->int_time == 0)
+			*val2 = 400000;
+		else if (data->int_time == 1)
+			*val2 = 200000;
+		else if (data->int_time == 2)
+			*val2 = 100000;
+		else
+			return -EINVAL;
+		*val = 0;
+		return IIO_VAL_INT_PLUS_MICRO;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int tsl4531_write_raw(struct iio_dev *indio_dev,
+			     struct iio_chan_spec const *chan,
+			     int val, int val2, long mask)
+{
+	struct tsl4531_data *data = iio_priv(indio_dev);
+	int int_time, ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_INT_TIME:
+		if (val != 0)
+			return -EINVAL;
+		if (val2 == 400000)
+			int_time = 0;
+		else if (val2 == 200000)
+			int_time = 1;
+		else if (val2 == 100000)
+			int_time = 2;
+		else
+			return -EINVAL;
+		mutex_lock(&data->lock);
+		ret = i2c_smbus_write_byte_data(data->client,
+			TSL4531_CONFIG, int_time);
+		if (ret >= 0)
+			data->int_time = int_time;
+		mutex_unlock(&data->lock);
+		return ret;
+	default:
+		return -EINVAL;
+	}
+}
+
+static const struct iio_info tsl4531_info = {
+	.read_raw = tsl4531_read_raw,
+	.write_raw = tsl4531_write_raw,
+	.attrs = &tsl4531_attribute_group,
+	.driver_module = THIS_MODULE,
+};
+
+static int tsl4531_check_id(struct i2c_client *client)
+{
+	int ret = i2c_smbus_read_byte_data(client, TSL4531_ID);
+	if (ret < 0)
+		return ret;
+
+	switch (ret >> TSL4531_ID_SHIFT) {
+	case TSL45311_ID:
+	case TSL45313_ID:
+	case TSL45315_ID:
+	case TSL45317_ID:
+		return 1;
+	default:
+		return 0;
+	}
+}
+
+static int tsl4531_probe(struct i2c_client *client,
+			  const struct i2c_device_id *id)
+{
+	struct tsl4531_data *data;
+	struct iio_dev *indio_dev;
+	int ret;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	data = iio_priv(indio_dev);
+	i2c_set_clientdata(client, indio_dev);
+	data->client = client;
+	mutex_init(&data->lock);
+
+	if (!tsl4531_check_id(client)) {
+		dev_err(&client->dev, "no TSL4531 sensor\n");
+		return -ENODEV;
+	}
+
+	ret = i2c_smbus_write_byte_data(data->client, TSL4531_CONTROL,
+		TSL4531_MODE_NORMAL);
+	if (ret < 0)
+		return ret;
+
+	ret = i2c_smbus_write_byte_data(data->client, TSL4531_CONFIG,
+		TSL4531_TCNTRL_400MS);
+	if (ret < 0)
+		return ret;
+
+	indio_dev->dev.parent = &client->dev;
+	indio_dev->info = &tsl4531_info;
+	indio_dev->channels = tsl4531_channels;
+	indio_dev->num_channels = ARRAY_SIZE(tsl4531_channels);
+	indio_dev->name = TSL4531_DRV_NAME;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	return iio_device_register(indio_dev);
+}
+
+static int tsl4531_powerdown(struct i2c_client *client)
+{
+	return i2c_smbus_write_byte_data(client, TSL4531_CONTROL,
+		TSL4531_MODE_POWERDOWN);
+}
+
+static int tsl4531_remove(struct i2c_client *client)
+{
+	iio_device_unregister(i2c_get_clientdata(client));
+	tsl4531_powerdown(client);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int tsl4531_suspend(struct device *dev)
+{
+	return tsl4531_powerdown(to_i2c_client(dev));
+}
+
+static int tsl4531_resume(struct device *dev)
+{
+	return i2c_smbus_write_byte_data(to_i2c_client(dev), TSL4531_CONTROL,
+		TSL4531_MODE_NORMAL);
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(tsl4531_pm_ops, tsl4531_suspend, tsl4531_resume);
+
+static const struct i2c_device_id tsl4531_id[] = {
+	{ "tsl4531", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, tsl4531_id);
+
+static struct i2c_driver tsl4531_driver = {
+	.driver = {
+		.name   = TSL4531_DRV_NAME,
+		.pm	= &tsl4531_pm_ops,
+		.owner  = THIS_MODULE,
+	},
+	.probe  = tsl4531_probe,
+	.remove = tsl4531_remove,
+	.id_table = tsl4531_id,
+};
+
+module_i2c_driver(tsl4531_driver);
+
+MODULE_AUTHOR("Peter Meerwald <pmeerw@pmeerw.net>");
+MODULE_DESCRIPTION("TAOS TSL4531 ambient light sensors driver");
+MODULE_LICENSE("GPL");
-- 
cgit 


From 362f2f8647cfa53e36bf910b42ad084674ade9dc Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 10 Sep 2013 13:49:00 +0100
Subject: iio: sensors-core: st: Allow full-scale to be an optional feature

Some chips either don't support it or fail to provide adequate documentation,
so sometimes it's impossible to enable the feature even if it is supported.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/common/st_sensors/st_sensors_core.c | 11 +++++++----
 drivers/iio/pressure/st_pressure_core.c         |  6 ++++--
 2 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 965ee22d3ac8..eb261a58fc68 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -235,10 +235,13 @@ int st_sensors_init_sensor(struct iio_dev *indio_dev,
 	if (err < 0)
 		goto init_error;
 
-	err = st_sensors_set_fullscale(indio_dev,
-						sdata->current_fullscale->num);
-	if (err < 0)
-		goto init_error;
+	if (sdata->current_fullscale) {
+		err = st_sensors_set_fullscale(indio_dev,
+					       sdata->current_fullscale->num);
+		if (err < 0)
+			goto init_error;
+	} else
+		dev_info(&indio_dev->dev, "Full-scale not possible\n");
 
 	err = st_sensors_set_odr(indio_dev, sdata->odr);
 	if (err < 0)
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index ceebd3c27892..16cfbc530769 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -226,8 +226,10 @@ int st_press_common_probe(struct iio_dev *indio_dev,
 	indio_dev->channels = pdata->sensor->ch;
 	indio_dev->num_channels = ARRAY_SIZE(st_press_channels);
 
-	pdata->current_fullscale = (struct st_sensor_fullscale_avl *)
-						&pdata->sensor->fs.fs_avl[0];
+	if (pdata->sensor->fs.addr != 0)
+		pdata->current_fullscale = (struct st_sensor_fullscale_avl *)
+			&pdata->sensor->fs.fs_avl[0];
+
 	pdata->odr = pdata->sensor->odr.odr_avl[0].hz;
 
 	if (!plat_data)
-- 
cgit 


From 5bb8e72d5de375c855ce5ec9b818c7836feeb301 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 10 Sep 2013 13:49:00 +0100
Subject: iio: sensors-core: st: Clean-up error handling in
 st_sensors_read_info_raw()

Saving a few lines of code.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/common/st_sensors/st_sensors_core.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index eb261a58fc68..793136aff390 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -352,28 +352,25 @@ int st_sensors_read_info_raw(struct iio_dev *indio_dev,
 	mutex_lock(&indio_dev->mlock);
 	if (indio_dev->currentmode == INDIO_BUFFER_TRIGGERED) {
 		err = -EBUSY;
-		goto read_error;
+		goto out;
 	} else {
 		err = st_sensors_set_enable(indio_dev, true);
 		if (err < 0)
-			goto read_error;
+			goto out;
 
 		msleep((sdata->sensor->bootime * 1000) / sdata->odr);
 		err = st_sensors_read_axis_data(indio_dev, ch, val);
 		if (err < 0)
-			goto read_error;
+			goto out;
 
 		*val = *val >> ch->scan_type.shift;
 
 		err = st_sensors_set_enable(indio_dev, false);
 	}
+out:
 	mutex_unlock(&indio_dev->mlock);
 
 	return err;
-
-read_error:
-	mutex_unlock(&indio_dev->mlock);
-	return err;
 }
 EXPORT_SYMBOL(st_sensors_read_info_raw);
 
-- 
cgit 


From 302fbd50ef31a93aee67061ed4594dceb94b0783 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 10 Sep 2013 13:49:00 +0100
Subject: iio: pressure-core: st: Describe LPS331AP defines by name

They're currently named *_1_*, for 'Sensor 1', but the code will be much
more readable if we use the naming convention *_LPS331AP_* instead.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/pressure/st_pressure_core.c | 94 ++++++++++++++++-----------------
 1 file changed, 46 insertions(+), 48 deletions(-)

diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 16cfbc530769..541340b874f1 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -36,94 +36,92 @@
 						 ST_PRESS_LSB_PER_CELSIUS)
 #define ST_PRESS_NUMBER_DATA_CHANNELS		1
 
-/* DEFAULT VALUE FOR SENSORS */
-#define ST_PRESS_DEFAULT_OUT_XL_ADDR		0x28
-#define ST_TEMP_DEFAULT_OUT_L_ADDR		0x2b
-
 /* FULLSCALE */
 #define ST_PRESS_FS_AVL_1260MB			1260
 
-/* CUSTOM VALUES FOR SENSOR 1 */
-#define ST_PRESS_1_WAI_EXP			0xbb
-#define ST_PRESS_1_ODR_ADDR			0x20
-#define ST_PRESS_1_ODR_MASK			0x70
-#define ST_PRESS_1_ODR_AVL_1HZ_VAL		0x01
-#define ST_PRESS_1_ODR_AVL_7HZ_VAL		0x05
-#define ST_PRESS_1_ODR_AVL_13HZ_VAL		0x06
-#define ST_PRESS_1_ODR_AVL_25HZ_VAL		0x07
-#define ST_PRESS_1_PW_ADDR			0x20
-#define ST_PRESS_1_PW_MASK			0x80
-#define ST_PRESS_1_FS_ADDR			0x23
-#define ST_PRESS_1_FS_MASK			0x30
-#define ST_PRESS_1_FS_AVL_1260_VAL		0x00
-#define ST_PRESS_1_FS_AVL_1260_GAIN		ST_PRESS_KPASCAL_NANO_SCALE
-#define ST_PRESS_1_FS_AVL_TEMP_GAIN		ST_PRESS_CELSIUS_NANO_SCALE
-#define ST_PRESS_1_BDU_ADDR			0x20
-#define ST_PRESS_1_BDU_MASK			0x04
-#define ST_PRESS_1_DRDY_IRQ_ADDR		0x22
-#define ST_PRESS_1_DRDY_IRQ_INT1_MASK		0x04
-#define ST_PRESS_1_DRDY_IRQ_INT2_MASK		0x20
-#define ST_PRESS_1_MULTIREAD_BIT		true
-#define ST_PRESS_1_TEMP_OFFSET			42500
+/* CUSTOM VALUES FOR LPS331AP SENSOR */
+#define ST_PRESS_LPS331AP_WAI_EXP		0xbb
+#define ST_PRESS_LPS331AP_ODR_ADDR		0x20
+#define ST_PRESS_LPS331AP_ODR_MASK		0x70
+#define ST_PRESS_LPS331AP_ODR_AVL_1HZ_VAL	0x01
+#define ST_PRESS_LPS331AP_ODR_AVL_7HZ_VAL	0x05
+#define ST_PRESS_LPS331AP_ODR_AVL_13HZ_VAL	0x06
+#define ST_PRESS_LPS331AP_ODR_AVL_25HZ_VAL	0x07
+#define ST_PRESS_LPS331AP_PW_ADDR		0x20
+#define ST_PRESS_LPS331AP_PW_MASK		0x80
+#define ST_PRESS_LPS331AP_FS_ADDR		0x23
+#define ST_PRESS_LPS331AP_FS_MASK		0x30
+#define ST_PRESS_LPS331AP_FS_AVL_1260_VAL	0x00
+#define ST_PRESS_LPS331AP_FS_AVL_1260_GAIN	ST_PRESS_KPASCAL_NANO_SCALE
+#define ST_PRESS_LPS331AP_FS_AVL_TEMP_GAIN	ST_PRESS_CELSIUS_NANO_SCALE
+#define ST_PRESS_LPS331AP_BDU_ADDR		0x20
+#define ST_PRESS_LPS331AP_BDU_MASK		0x04
+#define ST_PRESS_LPS331AP_DRDY_IRQ_ADDR		0x22
+#define ST_PRESS_LPS331AP_DRDY_IRQ_INT1_MASK	0x04
+#define ST_PRESS_LPS331AP_DRDY_IRQ_INT2_MASK	0x20
+#define ST_PRESS_LPS331AP_MULTIREAD_BIT		true
+#define ST_PRESS_LPS331AP_TEMP_OFFSET		42500
+#define ST_PRESS_LPS331AP_OUT_XL_ADDR		0x28
+#define ST_TEMP_LPS331AP_OUT_L_ADDR		0x2b
 
 static const struct iio_chan_spec st_press_channels[] = {
 	ST_SENSORS_LSM_CHANNELS(IIO_PRESSURE,
 			BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
 			ST_SENSORS_SCAN_X, 0, IIO_NO_MOD, 'u', IIO_LE, 24, 24,
-			ST_PRESS_DEFAULT_OUT_XL_ADDR),
+			ST_PRESS_LPS331AP_OUT_XL_ADDR),
 	ST_SENSORS_LSM_CHANNELS(IIO_TEMP,
 			BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE) |
 						BIT(IIO_CHAN_INFO_OFFSET),
 			-1, 0, IIO_NO_MOD, 's', IIO_LE, 16, 16,
-			ST_TEMP_DEFAULT_OUT_L_ADDR),
+			ST_TEMP_LPS331AP_OUT_L_ADDR),
 	IIO_CHAN_SOFT_TIMESTAMP(1)
 };
 
 static const struct st_sensors st_press_sensors[] = {
 	{
-		.wai = ST_PRESS_1_WAI_EXP,
+		.wai = ST_PRESS_LPS331AP_WAI_EXP,
 		.sensors_supported = {
 			[0] = LPS331AP_PRESS_DEV_NAME,
 		},
 		.ch = (struct iio_chan_spec *)st_press_channels,
 		.odr = {
-			.addr = ST_PRESS_1_ODR_ADDR,
-			.mask = ST_PRESS_1_ODR_MASK,
+			.addr = ST_PRESS_LPS331AP_ODR_ADDR,
+			.mask = ST_PRESS_LPS331AP_ODR_MASK,
 			.odr_avl = {
-				{ 1, ST_PRESS_1_ODR_AVL_1HZ_VAL, },
-				{ 7, ST_PRESS_1_ODR_AVL_7HZ_VAL, },
-				{ 13, ST_PRESS_1_ODR_AVL_13HZ_VAL, },
-				{ 25, ST_PRESS_1_ODR_AVL_25HZ_VAL, },
+				{ 1, ST_PRESS_LPS331AP_ODR_AVL_1HZ_VAL, },
+				{ 7, ST_PRESS_LPS331AP_ODR_AVL_7HZ_VAL, },
+				{ 13, ST_PRESS_LPS331AP_ODR_AVL_13HZ_VAL, },
+				{ 25, ST_PRESS_LPS331AP_ODR_AVL_25HZ_VAL, },
 			},
 		},
 		.pw = {
-			.addr = ST_PRESS_1_PW_ADDR,
-			.mask = ST_PRESS_1_PW_MASK,
+			.addr = ST_PRESS_LPS331AP_PW_ADDR,
+			.mask = ST_PRESS_LPS331AP_PW_MASK,
 			.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
 			.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
 		},
 		.fs = {
-			.addr = ST_PRESS_1_FS_ADDR,
-			.mask = ST_PRESS_1_FS_MASK,
+			.addr = ST_PRESS_LPS331AP_FS_ADDR,
+			.mask = ST_PRESS_LPS331AP_FS_MASK,
 			.fs_avl = {
 				[0] = {
 					.num = ST_PRESS_FS_AVL_1260MB,
-					.value = ST_PRESS_1_FS_AVL_1260_VAL,
-					.gain = ST_PRESS_1_FS_AVL_1260_GAIN,
-					.gain2 = ST_PRESS_1_FS_AVL_TEMP_GAIN,
+					.value = ST_PRESS_LPS331AP_FS_AVL_1260_VAL,
+					.gain = ST_PRESS_LPS331AP_FS_AVL_1260_GAIN,
+					.gain2 = ST_PRESS_LPS331AP_FS_AVL_TEMP_GAIN,
 				},
 			},
 		},
 		.bdu = {
-			.addr = ST_PRESS_1_BDU_ADDR,
-			.mask = ST_PRESS_1_BDU_MASK,
+			.addr = ST_PRESS_LPS331AP_BDU_ADDR,
+			.mask = ST_PRESS_LPS331AP_BDU_MASK,
 		},
 		.drdy_irq = {
-			.addr = ST_PRESS_1_DRDY_IRQ_ADDR,
-			.mask_int1 = ST_PRESS_1_DRDY_IRQ_INT1_MASK,
-			.mask_int2 = ST_PRESS_1_DRDY_IRQ_INT2_MASK,
+			.addr = ST_PRESS_LPS331AP_DRDY_IRQ_ADDR,
+			.mask_int1 = ST_PRESS_LPS331AP_DRDY_IRQ_INT1_MASK,
+			.mask_int2 = ST_PRESS_LPS331AP_DRDY_IRQ_INT2_MASK,
 		},
-		.multi_read_bit = ST_PRESS_1_MULTIREAD_BIT,
+		.multi_read_bit = ST_PRESS_LPS331AP_MULTIREAD_BIT,
 		.bootime = 2,
 	},
 };
-- 
cgit 


From 2f5effcbd097a37690c86b80a3c242dd8338d59c Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 10 Sep 2013 13:49:00 +0100
Subject: iio: pressure-core: st: Expand and rename LPS331AP's channel
 descriptor

Due to the MACRO used, the task of reading, understanding and maintaining
the LPS331AP's channel descriptor is substantially difficult. This patch
is based on the view that it's better to have easy to read, maintainable
code than to save a few lines here and there. For that reason we're
expanding the array so initialisation is completed in full.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/pressure/st_pressure_core.c | 45 +++++++++++++++++++++++++--------
 1 file changed, 34 insertions(+), 11 deletions(-)

diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 541340b874f1..506b02d27b0a 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -64,16 +64,39 @@
 #define ST_PRESS_LPS331AP_OUT_XL_ADDR		0x28
 #define ST_TEMP_LPS331AP_OUT_L_ADDR		0x2b
 
-static const struct iio_chan_spec st_press_channels[] = {
-	ST_SENSORS_LSM_CHANNELS(IIO_PRESSURE,
+static const struct iio_chan_spec st_press_lps331ap_channels[] = {
+	{
+		.type = IIO_PRESSURE,
+		.channel2 = IIO_NO_MOD,
+		.address = ST_PRESS_LPS331AP_OUT_XL_ADDR,
+		.scan_index = ST_SENSORS_SCAN_X,
+		.scan_type = {
+			.sign = 'u',
+			.realbits = 24,
+			.storagebits = 24,
+			.endianness = IIO_LE,
+		},
+		.info_mask_separate =
 			BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
-			ST_SENSORS_SCAN_X, 0, IIO_NO_MOD, 'u', IIO_LE, 24, 24,
-			ST_PRESS_LPS331AP_OUT_XL_ADDR),
-	ST_SENSORS_LSM_CHANNELS(IIO_TEMP,
-			BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE) |
-						BIT(IIO_CHAN_INFO_OFFSET),
-			-1, 0, IIO_NO_MOD, 's', IIO_LE, 16, 16,
-			ST_TEMP_LPS331AP_OUT_L_ADDR),
+		.modified = 0,
+	},
+	{
+		.type = IIO_TEMP,
+		.channel2 = IIO_NO_MOD,
+		.address = ST_TEMP_LPS331AP_OUT_L_ADDR,
+		.scan_index = -1,
+		.scan_type = {
+			.sign = 'u',
+			.realbits = 16,
+			.storagebits = 16,
+			.endianness = IIO_LE,
+		},
+		.info_mask_separate =
+			BIT(IIO_CHAN_INFO_RAW) |
+			BIT(IIO_CHAN_INFO_SCALE) |
+			BIT(IIO_CHAN_INFO_OFFSET),
+		.modified = 0,
+	},
 	IIO_CHAN_SOFT_TIMESTAMP(1)
 };
 
@@ -83,7 +106,7 @@ static const struct st_sensors st_press_sensors[] = {
 		.sensors_supported = {
 			[0] = LPS331AP_PRESS_DEV_NAME,
 		},
-		.ch = (struct iio_chan_spec *)st_press_channels,
+		.ch = (struct iio_chan_spec *)st_press_lps331ap_channels,
 		.odr = {
 			.addr = ST_PRESS_LPS331AP_ODR_ADDR,
 			.mask = ST_PRESS_LPS331AP_ODR_MASK,
@@ -222,7 +245,7 @@ int st_press_common_probe(struct iio_dev *indio_dev,
 	pdata->num_data_channels = ST_PRESS_NUMBER_DATA_CHANNELS;
 	pdata->multiread_bit = pdata->sensor->multi_read_bit;
 	indio_dev->channels = pdata->sensor->ch;
-	indio_dev->num_channels = ARRAY_SIZE(st_press_channels);
+	indio_dev->num_channels = ARRAY_SIZE(st_press_lps331ap_channels);
 
 	if (pdata->sensor->fs.addr != 0)
 		pdata->current_fullscale = (struct st_sensor_fullscale_avl *)
-- 
cgit 


From ea01f2c18a22a2a8385909d64662afc92da6b13f Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 10 Sep 2013 13:49:00 +0100
Subject: iio: pressure-core: st: Allow for number of channels to vary

At the moment the number of channels specified is dictated by the first
sensor supported by the driver. As we add support for more sensors this
is likely to vary. Instead of using the ARRAY_SIZE() of the LPS331AP's
channel specifier we'll use a new adaptable 'struct st_sensors' element
instead.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/pressure/st_pressure_core.c | 3 ++-
 include/linux/iio/common/st_sensors.h   | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 506b02d27b0a..93bff9ba05d6 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -107,6 +107,7 @@ static const struct st_sensors st_press_sensors[] = {
 			[0] = LPS331AP_PRESS_DEV_NAME,
 		},
 		.ch = (struct iio_chan_spec *)st_press_lps331ap_channels,
+		.num_ch = ARRAY_SIZE(st_press_lps331ap_channels),
 		.odr = {
 			.addr = ST_PRESS_LPS331AP_ODR_ADDR,
 			.mask = ST_PRESS_LPS331AP_ODR_MASK,
@@ -245,7 +246,7 @@ int st_press_common_probe(struct iio_dev *indio_dev,
 	pdata->num_data_channels = ST_PRESS_NUMBER_DATA_CHANNELS;
 	pdata->multiread_bit = pdata->sensor->multi_read_bit;
 	indio_dev->channels = pdata->sensor->ch;
-	indio_dev->num_channels = ARRAY_SIZE(st_press_lps331ap_channels);
+	indio_dev->num_channels = pdata->sensor->num_ch;
 
 	if (pdata->sensor->fs.addr != 0)
 		pdata->current_fullscale = (struct st_sensor_fullscale_avl *)
diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index e51f65480ea5..e732fda6c8e6 100644
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -184,6 +184,7 @@ struct st_sensors {
 	u8 wai;
 	char sensors_supported[ST_SENSORS_MAX_4WAI][ST_SENSORS_MAX_NAME];
 	struct iio_chan_spec *ch;
+	int num_ch;
 	struct st_sensor_odr odr;
 	struct st_sensor_power pw;
 	struct st_sensor_axis enable_axis;
-- 
cgit 


From eb869ade30a645dd2fadd89453615585f235794e Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Sat, 14 Sep 2013 20:38:00 +0100
Subject: iio: Add tcs3472 color light sensor driver

chip has four 16-bit channels for red, green, blue, clear color
intensity; driver supports the TCS3x7x family of devices and was
tested with a TCS34725 chip; further information here:
http://www.ams.com/eng/Products/Light-Sensors/Color-Sensor/TCS34725

v2 (thanks to Jonathan Cameron):
* drop dynamic buffer allocation, buffer is in tcs3472_data
* limit sysfs output to PAGE_SIZE
* check val2 == 0 when writing CALIBSCALE

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Cc: Jon Brenner <jon.brenner@ams.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/light/Kconfig   |  10 ++
 drivers/iio/light/Makefile  |   1 +
 drivers/iio/light/tcs3472.c | 369 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 380 insertions(+)
 create mode 100644 drivers/iio/light/tcs3472.c

diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig
index 488fff7cd80d..e73a1aba990d 100644
--- a/drivers/iio/light/Kconfig
+++ b/drivers/iio/light/Kconfig
@@ -55,6 +55,16 @@ config SENSORS_LM3533
 	  changes. The ALS-control output values can be set per zone for the
 	  three current output channels.
 
+config TCS3472
+	tristate "TAOS TCS3472 color light-to-digital converter"
+	depends on I2C
+	help
+	 If you say yes here you get support for the TAOS TCS3472
+	 family of color light-to-digital converters with IR filter.
+
+	 This driver can also be built as a module.  If so, the module
+	 will be called tcs3472.
+
 config SENSORS_TSL2563
 	tristate "TAOS TSL2560, TSL2561, TSL2562 and TSL2563 ambient light sensors"
 	depends on I2C
diff --git a/drivers/iio/light/Makefile b/drivers/iio/light/Makefile
index cd6f3cfe6259..fb3114006c26 100644
--- a/drivers/iio/light/Makefile
+++ b/drivers/iio/light/Makefile
@@ -8,5 +8,6 @@ obj-$(CONFIG_APDS9300)		+= apds9300.o
 obj-$(CONFIG_HID_SENSOR_ALS)	+= hid-sensor-als.o
 obj-$(CONFIG_SENSORS_LM3533)	+= lm3533-als.o
 obj-$(CONFIG_SENSORS_TSL2563)	+= tsl2563.o
+obj-$(CONFIG_TCS3472)		+= tcs3472.o
 obj-$(CONFIG_TSL4531)		+= tsl4531.o
 obj-$(CONFIG_VCNL4000)		+= vcnl4000.o
diff --git a/drivers/iio/light/tcs3472.c b/drivers/iio/light/tcs3472.c
new file mode 100644
index 000000000000..95510bdd7cba
--- /dev/null
+++ b/drivers/iio/light/tcs3472.c
@@ -0,0 +1,369 @@
+/*
+ * tcs3472.c - Support for TAOS TCS3472 color light-to-digital converter
+ *
+ * Copyright (c) 2013 Peter Meerwald <pmeerw@pmeerw.net>
+ *
+ * This file is subject to the terms and conditions of version 2 of
+ * the GNU General Public License.  See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * Color light sensor with 16-bit channels for red, green, blue, clear);
+ * 7-bit I2C slave address 0x39 (TCS34721, TCS34723) or 0x29 (TCS34725,
+ * TCS34727)
+ *
+ * TODO: interrupt support, thresholds, wait time
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/triggered_buffer.h>
+
+#define TCS3472_DRV_NAME "tcs3472"
+
+#define TCS3472_COMMAND BIT(7)
+#define TCS3472_AUTO_INCR BIT(5)
+
+#define TCS3472_ENABLE (TCS3472_COMMAND | 0x00)
+#define TCS3472_ATIME (TCS3472_COMMAND | 0x01)
+#define TCS3472_WTIME (TCS3472_COMMAND | 0x03)
+#define TCS3472_AILT (TCS3472_COMMAND | 0x04)
+#define TCS3472_AIHT (TCS3472_COMMAND | 0x06)
+#define TCS3472_PERS (TCS3472_COMMAND | 0x0c)
+#define TCS3472_CONFIG (TCS3472_COMMAND | 0x0d)
+#define TCS3472_CONTROL (TCS3472_COMMAND | 0x0f)
+#define TCS3472_ID (TCS3472_COMMAND | 0x12)
+#define TCS3472_STATUS (TCS3472_COMMAND | 0x13)
+#define TCS3472_CDATA (TCS3472_COMMAND | TCS3472_AUTO_INCR | 0x14)
+#define TCS3472_RDATA (TCS3472_COMMAND | TCS3472_AUTO_INCR | 0x16)
+#define TCS3472_GDATA (TCS3472_COMMAND | TCS3472_AUTO_INCR | 0x18)
+#define TCS3472_BDATA (TCS3472_COMMAND | TCS3472_AUTO_INCR | 0x1a)
+
+#define TCS3472_STATUS_AVALID BIT(0)
+#define TCS3472_ENABLE_AEN BIT(1)
+#define TCS3472_ENABLE_PON BIT(0)
+#define TCS3472_CONTROL_AGAIN_MASK (BIT(0) | BIT(1))
+
+struct tcs3472_data {
+	struct i2c_client *client;
+	u8 enable;
+	u8 control;
+	u8 atime;
+	u16 buffer[4];
+};
+
+/* 4 16-bit channels + timestamp = 16 bytes */
+#define TSL3472_BUFFER_SIZE 16
+
+#define TCS3472_CHANNEL(_color, _si, _addr) { \
+	.type = IIO_INTENSITY, \
+	.modified = 1, \
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
+	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_CALIBSCALE) | \
+		BIT(IIO_CHAN_INFO_INT_TIME), \
+	.channel2 = IIO_MOD_LIGHT_##_color, \
+	.address = _addr, \
+	.scan_index = _si, \
+	.scan_type = IIO_ST('u', 16, 16, 0), \
+}
+
+static const int tcs3472_agains[] = { 1, 4, 16, 60 };
+
+static const struct iio_chan_spec tcs3472_channels[] = {
+	TCS3472_CHANNEL(CLEAR, 0, TCS3472_CDATA),
+	TCS3472_CHANNEL(RED, 1, TCS3472_RDATA),
+	TCS3472_CHANNEL(GREEN, 2, TCS3472_GDATA),
+	TCS3472_CHANNEL(BLUE, 3, TCS3472_BDATA),
+	IIO_CHAN_SOFT_TIMESTAMP(4),
+};
+
+static int tcs3472_req_data(struct tcs3472_data *data)
+{
+	int tries = 50;
+	int ret;
+
+	while (tries--) {
+		ret = i2c_smbus_read_byte_data(data->client, TCS3472_STATUS);
+		if (ret < 0)
+			return ret;
+		if (ret & TCS3472_STATUS_AVALID)
+			break;
+		msleep(20);
+	}
+
+	if (tries < 0) {
+		dev_err(&data->client->dev, "data not ready\n");
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int tcs3472_read_raw(struct iio_dev *indio_dev,
+			   struct iio_chan_spec const *chan,
+			   int *val, int *val2, long mask)
+{
+	struct tcs3472_data *data = iio_priv(indio_dev);
+	int ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		ret = tcs3472_req_data(data);
+		if (ret < 0)
+			return ret;
+		ret = i2c_smbus_read_word_data(data->client, chan->address);
+		if (ret < 0)
+			return ret;
+		*val = ret;
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_CALIBSCALE:
+		*val = tcs3472_agains[data->control &
+			TCS3472_CONTROL_AGAIN_MASK];
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_INT_TIME:
+		*val = 0;
+		*val2 = (256 - data->atime) * 2400;
+		return IIO_VAL_INT_PLUS_MICRO;
+	}
+	return -EINVAL;
+}
+
+static int tcs3472_write_raw(struct iio_dev *indio_dev,
+			       struct iio_chan_spec const *chan,
+			       int val, int val2, long mask)
+{
+	struct tcs3472_data *data = iio_priv(indio_dev);
+	int i;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_CALIBSCALE:
+		if (val2 != 0)
+			return -EINVAL;
+		for (i = 0; i < ARRAY_SIZE(tcs3472_agains); i++) {
+			if (val == tcs3472_agains[i]) {
+				data->control &= ~TCS3472_CONTROL_AGAIN_MASK;
+				data->control |= i;
+				return i2c_smbus_write_byte_data(
+					data->client, TCS3472_CONTROL,
+					data->control);
+			}
+		}
+		return -EINVAL;
+	case IIO_CHAN_INFO_INT_TIME:
+		if (val != 0)
+			return -EINVAL;
+		for (i = 0; i < 256; i++) {
+			if (val2 == (256 - i) * 2400) {
+				data->atime = i;
+				return i2c_smbus_write_word_data(
+					data->client, TCS3472_ATIME,
+					data->atime);
+			}
+
+		}
+		return -EINVAL;
+	}
+	return -EINVAL;
+}
+
+static irqreturn_t tcs3472_trigger_handler(int irq, void *p)
+{
+	struct iio_poll_func *pf = p;
+	struct iio_dev *indio_dev = pf->indio_dev;
+	struct tcs3472_data *data = iio_priv(indio_dev);
+	int len = 0;
+	int i, j = 0;
+
+	int ret = tcs3472_req_data(data);
+	if (ret < 0)
+		goto done;
+
+	for_each_set_bit(i, indio_dev->active_scan_mask,
+		indio_dev->masklength) {
+		ret = i2c_smbus_read_word_data(data->client,
+			TCS3472_CDATA + 2*i);
+		if (ret < 0)
+			goto done;
+
+		data->buffer[j++] = ret;
+		len += 2;
+	}
+
+	if (indio_dev->scan_timestamp)
+		*(s64 *)((u8 *)data->buffer + ALIGN(len, sizeof(s64)))
+			= iio_get_time_ns();
+	iio_push_to_buffers(indio_dev, (u8 *)data->buffer);
+
+done:
+	iio_trigger_notify_done(indio_dev->trig);
+
+	return IRQ_HANDLED;
+}
+
+static ssize_t tcs3472_show_int_time_available(struct device *dev,
+					struct device_attribute *attr,
+					char *buf)
+{
+	size_t len = 0;
+	int i;
+
+	for (i = 1; i <= 256; i++)
+		len += scnprintf(buf + len, PAGE_SIZE - len, "0.%06d ",
+			2400 * i);
+
+	/* replace trailing space by newline */
+	buf[len - 1] = '\n';
+
+	return len;
+}
+
+static IIO_CONST_ATTR(calibscale_available, "1 4 16 60");
+static IIO_DEV_ATTR_INT_TIME_AVAIL(tcs3472_show_int_time_available);
+
+static struct attribute *tcs3472_attributes[] = {
+	&iio_const_attr_calibscale_available.dev_attr.attr,
+	&iio_dev_attr_integration_time_available.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group tcs3472_attribute_group = {
+	.attrs = tcs3472_attributes,
+};
+
+static const struct iio_info tcs3472_info = {
+	.read_raw = tcs3472_read_raw,
+	.write_raw = tcs3472_write_raw,
+	.attrs = &tcs3472_attribute_group,
+	.driver_module = THIS_MODULE,
+};
+
+static int tcs3472_probe(struct i2c_client *client,
+			   const struct i2c_device_id *id)
+{
+	struct tcs3472_data *data;
+	struct iio_dev *indio_dev;
+	int ret;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+	if (indio_dev == NULL)
+		return -ENOMEM;
+
+	data = iio_priv(indio_dev);
+	i2c_set_clientdata(client, indio_dev);
+	data->client = client;
+
+	indio_dev->dev.parent = &client->dev;
+	indio_dev->info = &tcs3472_info;
+	indio_dev->name = TCS3472_DRV_NAME;
+	indio_dev->channels = tcs3472_channels;
+	indio_dev->num_channels = ARRAY_SIZE(tcs3472_channels);
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	ret = i2c_smbus_read_byte_data(data->client, TCS3472_ID);
+	if (ret < 0)
+		return ret;
+
+	if (ret == 0x44)
+		dev_info(&client->dev, "TCS34721/34725 found\n");
+	else if (ret == 0x4d)
+		dev_info(&client->dev, "TCS34723/34727 found\n");
+	else
+		return -ENODEV;
+
+	ret = i2c_smbus_read_byte_data(data->client, TCS3472_CONTROL);
+	if (ret < 0)
+		return ret;
+	data->control = ret;
+
+	ret = i2c_smbus_read_byte_data(data->client, TCS3472_ATIME);
+	if (ret < 0)
+		return ret;
+	data->atime = ret;
+
+	ret = i2c_smbus_read_byte_data(data->client, TCS3472_ENABLE);
+	if (ret < 0)
+		return ret;
+
+	/* enable device */
+	data->enable = ret | TCS3472_ENABLE_PON | TCS3472_ENABLE_AEN;
+	ret = i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE,
+		data->enable);
+	if (ret < 0)
+		return ret;
+
+	ret = iio_triggered_buffer_setup(indio_dev, NULL,
+		tcs3472_trigger_handler, NULL);
+	if (ret < 0)
+		return ret;
+
+	ret = iio_device_register(indio_dev);
+	if (ret < 0)
+		goto buffer_cleanup;
+
+	return 0;
+
+buffer_cleanup:
+	iio_triggered_buffer_cleanup(indio_dev);
+	return ret;
+}
+
+static int tcs3472_powerdown(struct tcs3472_data *data)
+{
+	return i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE,
+		data->enable & ~(TCS3472_ENABLE_AEN | TCS3472_ENABLE_PON));
+}
+
+static int tcs3472_remove(struct i2c_client *client)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+
+	iio_device_unregister(indio_dev);
+	iio_triggered_buffer_cleanup(indio_dev);
+	tcs3472_powerdown(iio_priv(indio_dev));
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int tcs3472_suspend(struct device *dev)
+{
+	return tcs3472_powerdown(iio_priv(dev_to_iio_dev(dev)));
+}
+
+static int tcs3472_resume(struct device *dev)
+{
+	struct tcs3472_data *data = iio_priv(dev_to_iio_dev(dev));
+	return i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE,
+		data->enable | (TCS3472_ENABLE_AEN | TCS3472_ENABLE_PON));
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(tcs3472_pm_ops, tcs3472_suspend, tcs3472_resume);
+
+static const struct i2c_device_id tcs3472_id[] = {
+	{ "tcs3472", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, tcs3472_id);
+
+static struct i2c_driver tcs3472_driver = {
+	.driver = {
+		.name	= TCS3472_DRV_NAME,
+		.pm	= &tcs3472_pm_ops,
+		.owner	= THIS_MODULE,
+	},
+	.probe		= tcs3472_probe,
+	.remove		= tcs3472_remove,
+	.id_table	= tcs3472_id,
+};
+module_i2c_driver(tcs3472_driver);
+
+MODULE_AUTHOR("Peter Meerwald <pmeerw@pmeerw.net>");
+MODULE_DESCRIPTION("TCS3472 color light sensors driver");
+MODULE_LICENSE("GPL");
-- 
cgit 


From 02fa18958ce065ccc23ad59cff736031d62e9950 Mon Sep 17 00:00:00 2001
From: Jacek Anaszewski <j.anaszewski@samsung.com>
Date: Wed, 21 Aug 2013 16:06:00 +0100
Subject: DT: Add documentation for gp2ap020a00f sensor

This patch adds device tree binding documentation
for the gp2ap020a00f proximity/als sensor.

Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 .../devicetree/bindings/iio/light/gp2ap020a00f.txt  | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/light/gp2ap020a00f.txt

diff --git a/Documentation/devicetree/bindings/iio/light/gp2ap020a00f.txt b/Documentation/devicetree/bindings/iio/light/gp2ap020a00f.txt
new file mode 100644
index 000000000000..9231c82317ad
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/gp2ap020a00f.txt
@@ -0,0 +1,21 @@
+* Sharp GP2AP020A00F I2C Proximity/ALS sensor
+
+The proximity detector sensor requires power supply
+for its built-in led. It is also defined by this binding.
+
+Required properties:
+
+  - compatible : should be "sharp,gp2ap020a00f"
+  - reg : the I2C slave address of the light sensor
+  - interrupts : interrupt specifier for the sole interrupt generated
+		 by the device
+  - vled-supply : VLED power supply, as covered in ../regulator/regulator.txt
+
+Example:
+
+gp2ap020a00f@39 {
+	compatible = "sharp,gp2ap020a00f";
+	reg = <0x39>;
+	interrupts = <2 0>;
+	vled-supply = <...>;
+};
-- 
cgit 


From bf29fbeaa13d3350ca71df70c705d8b883c45692 Mon Sep 17 00:00:00 2001
From: Jacek Anaszewski <j.anaszewski@samsung.com>
Date: Mon, 9 Sep 2013 16:23:00 +0100
Subject: iio: gp2ap020a00f: Add a driver for the device

Add a new driver for the ambient light/proximity sensor
device. The driver exposes three channels: light_clear
light_ir and proximity. It also supports triggered buffer,
high and low ambient light threshold event and proximity
detection events.

Signed-off-by: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/light/Kconfig        |   12 +
 drivers/iio/light/Makefile       |    1 +
 drivers/iio/light/gp2ap020a00f.c | 1622 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 1635 insertions(+)
 create mode 100644 drivers/iio/light/gp2ap020a00f.c

diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig
index e73a1aba990d..0a25ae6b132e 100644
--- a/drivers/iio/light/Kconfig
+++ b/drivers/iio/light/Kconfig
@@ -27,6 +27,18 @@ config APDS9300
 	 To compile this driver as a module, choose M here: the
 	 module will be called apds9300.
 
+config GP2AP020A00F
+	tristate "Sharp GP2AP020A00F Proximity/ALS sensor"
+	depends on I2C
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
+	help
+	  Say Y here if you have a Sharp GP2AP020A00F proximity/ALS combo-chip
+	  hooked to an I2C bus.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called gp2ap020a00f.
+
 config HID_SENSOR_ALS
 	depends on HID_SENSOR_HUB
 	select IIO_BUFFER
diff --git a/drivers/iio/light/Makefile b/drivers/iio/light/Makefile
index fb3114006c26..cef590f2ff00 100644
--- a/drivers/iio/light/Makefile
+++ b/drivers/iio/light/Makefile
@@ -5,6 +5,7 @@
 # When adding new entries keep the list in alphabetical order
 obj-$(CONFIG_ADJD_S311)		+= adjd_s311.o
 obj-$(CONFIG_APDS9300)		+= apds9300.o
+obj-$(CONFIG_GP2AP020A00F)	+= gp2ap020a00f.o
 obj-$(CONFIG_HID_SENSOR_ALS)	+= hid-sensor-als.o
 obj-$(CONFIG_SENSORS_LM3533)	+= lm3533-als.o
 obj-$(CONFIG_SENSORS_TSL2563)	+= tsl2563.o
diff --git a/drivers/iio/light/gp2ap020a00f.c b/drivers/iio/light/gp2ap020a00f.c
new file mode 100644
index 000000000000..62809b53a7f0
--- /dev/null
+++ b/drivers/iio/light/gp2ap020a00f.c
@@ -0,0 +1,1622 @@
+/*
+ * Copyright (C) 2013 Samsung Electronics Co., Ltd.
+ * Author: Jacek Anaszewski <j.anaszewski@samsung.com>
+ *
+ * IIO features supported by the driver:
+ *
+ * Read-only raw channels:
+ *   - illiminance_clear [lux]
+ *   - illiminance_ir
+ *   - proximity
+ *
+ * Triggered buffer:
+ *   - illiminance_clear
+ *   - illiminance_ir
+ *   - proximity
+ *
+ * Events:
+ *   - illuminance_clear (rising and falling)
+ *   - proximity (rising and falling)
+ *     - both falling and rising thresholds for the proximity events
+ *       must be set to the values greater than 0.
+ *
+ * The driver supports triggered buffers for all the three
+ * channels as well as high and low threshold events for the
+ * illuminance_clear and proxmimity channels. Triggers
+ * can be enabled simultaneously with both illuminance_clear
+ * events. Proximity events cannot be enabled simultaneously
+ * with any triggers or illuminance events. Enabling/disabling
+ * one of the proximity events automatically enables/disables
+ * the other one.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/irq_work.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+#include <linux/slab.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/events.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
+
+#define GP2A_I2C_NAME "gp2ap020a00f"
+
+/* Registers */
+#define GP2AP020A00F_OP_REG	0x00 /* Basic operations */
+#define GP2AP020A00F_ALS_REG	0x01 /* ALS related settings */
+#define GP2AP020A00F_PS_REG	0x02 /* PS related settings */
+#define GP2AP020A00F_LED_REG	0x03 /* LED reg */
+#define GP2AP020A00F_TL_L_REG	0x04 /* ALS: Threshold low LSB */
+#define GP2AP020A00F_TL_H_REG	0x05 /* ALS: Threshold low MSB */
+#define GP2AP020A00F_TH_L_REG	0x06 /* ALS: Threshold high LSB */
+#define GP2AP020A00F_TH_H_REG	0x07 /* ALS: Threshold high MSB */
+#define GP2AP020A00F_PL_L_REG	0x08 /* PS: Threshold low LSB */
+#define GP2AP020A00F_PL_H_REG	0x09 /* PS: Threshold low MSB */
+#define GP2AP020A00F_PH_L_REG	0x0a /* PS: Threshold high LSB */
+#define GP2AP020A00F_PH_H_REG	0x0b /* PS: Threshold high MSB */
+#define GP2AP020A00F_D0_L_REG	0x0c /* ALS result: Clear/Illuminance LSB */
+#define GP2AP020A00F_D0_H_REG	0x0d /* ALS result: Clear/Illuminance MSB */
+#define GP2AP020A00F_D1_L_REG	0x0e /* ALS result: IR LSB */
+#define GP2AP020A00F_D1_H_REG	0x0f /* ALS result: IR LSB */
+#define GP2AP020A00F_D2_L_REG	0x10 /* PS result LSB */
+#define GP2AP020A00F_D2_H_REG	0x11 /* PS result MSB */
+#define GP2AP020A00F_NUM_REGS	0x12 /* Number of registers */
+
+/* OP_REG bits */
+#define GP2AP020A00F_OP3_MASK		0x80 /* Software shutdown */
+#define GP2AP020A00F_OP3_SHUTDOWN	0x00
+#define GP2AP020A00F_OP3_OPERATION	0x80
+#define GP2AP020A00F_OP2_MASK		0x40 /* Auto shutdown/Continuous mode */
+#define GP2AP020A00F_OP2_AUTO_SHUTDOWN	0x00
+#define GP2AP020A00F_OP2_CONT_OPERATION	0x40
+#define GP2AP020A00F_OP_MASK		0x30 /* Operating mode selection  */
+#define GP2AP020A00F_OP_ALS_AND_PS	0x00
+#define GP2AP020A00F_OP_ALS		0x10
+#define GP2AP020A00F_OP_PS		0x20
+#define GP2AP020A00F_OP_DEBUG		0x30
+#define GP2AP020A00F_PROX_MASK		0x08 /* PS: detection/non-detection */
+#define GP2AP020A00F_PROX_NON_DETECT	0x00
+#define GP2AP020A00F_PROX_DETECT	0x08
+#define GP2AP020A00F_FLAG_P		0x04 /* PS: interrupt result  */
+#define GP2AP020A00F_FLAG_A		0x02 /* ALS: interrupt result  */
+#define GP2AP020A00F_TYPE_MASK		0x01 /* Output data type selection */
+#define GP2AP020A00F_TYPE_MANUAL_CALC	0x00
+#define GP2AP020A00F_TYPE_AUTO_CALC	0x01
+
+/* ALS_REG bits */
+#define GP2AP020A00F_PRST_MASK		0xc0 /* Number of measurement cycles */
+#define GP2AP020A00F_PRST_ONCE		0x00
+#define GP2AP020A00F_PRST_4_CYCLES	0x40
+#define GP2AP020A00F_PRST_8_CYCLES	0x80
+#define GP2AP020A00F_PRST_16_CYCLES	0xc0
+#define GP2AP020A00F_RES_A_MASK		0x38 /* ALS: Resolution */
+#define GP2AP020A00F_RES_A_800ms	0x00
+#define GP2AP020A00F_RES_A_400ms	0x08
+#define GP2AP020A00F_RES_A_200ms	0x10
+#define GP2AP020A00F_RES_A_100ms	0x18
+#define GP2AP020A00F_RES_A_25ms		0x20
+#define GP2AP020A00F_RES_A_6_25ms	0x28
+#define GP2AP020A00F_RES_A_1_56ms	0x30
+#define GP2AP020A00F_RES_A_0_39ms	0x38
+#define GP2AP020A00F_RANGE_A_MASK	0x07 /* ALS: Max measurable range */
+#define GP2AP020A00F_RANGE_A_x1		0x00
+#define GP2AP020A00F_RANGE_A_x2		0x01
+#define GP2AP020A00F_RANGE_A_x4		0x02
+#define GP2AP020A00F_RANGE_A_x8		0x03
+#define GP2AP020A00F_RANGE_A_x16	0x04
+#define GP2AP020A00F_RANGE_A_x32	0x05
+#define GP2AP020A00F_RANGE_A_x64	0x06
+#define GP2AP020A00F_RANGE_A_x128	0x07
+
+/* PS_REG bits */
+#define GP2AP020A00F_ALC_MASK		0x80 /* Auto light cancel */
+#define GP2AP020A00F_ALC_ON		0x80
+#define GP2AP020A00F_ALC_OFF		0x00
+#define GP2AP020A00F_INTTYPE_MASK	0x40 /* Interrupt type setting */
+#define GP2AP020A00F_INTTYPE_LEVEL	0x00
+#define GP2AP020A00F_INTTYPE_PULSE	0x40
+#define GP2AP020A00F_RES_P_MASK		0x38 /* PS: Resolution */
+#define GP2AP020A00F_RES_P_800ms_x2	0x00
+#define GP2AP020A00F_RES_P_400ms_x2	0x08
+#define GP2AP020A00F_RES_P_200ms_x2	0x10
+#define GP2AP020A00F_RES_P_100ms_x2	0x18
+#define GP2AP020A00F_RES_P_25ms_x2	0x20
+#define GP2AP020A00F_RES_P_6_25ms_x2	0x28
+#define GP2AP020A00F_RES_P_1_56ms_x2	0x30
+#define GP2AP020A00F_RES_P_0_39ms_x2	0x38
+#define GP2AP020A00F_RANGE_P_MASK	0x07 /* PS: Max measurable range */
+#define GP2AP020A00F_RANGE_P_x1		0x00
+#define GP2AP020A00F_RANGE_P_x2		0x01
+#define GP2AP020A00F_RANGE_P_x4		0x02
+#define GP2AP020A00F_RANGE_P_x8		0x03
+#define GP2AP020A00F_RANGE_P_x16	0x04
+#define GP2AP020A00F_RANGE_P_x32	0x05
+#define GP2AP020A00F_RANGE_P_x64	0x06
+#define GP2AP020A00F_RANGE_P_x128	0x07
+
+/* LED reg bits */
+#define GP2AP020A00F_INTVAL_MASK	0xc0 /* Intermittent operating */
+#define GP2AP020A00F_INTVAL_0		0x00
+#define GP2AP020A00F_INTVAL_4		0x40
+#define GP2AP020A00F_INTVAL_8		0x80
+#define GP2AP020A00F_INTVAL_16		0xc0
+#define GP2AP020A00F_IS_MASK		0x30 /* ILED drive peak current */
+#define GP2AP020A00F_IS_13_8mA		0x00
+#define GP2AP020A00F_IS_27_5mA		0x10
+#define GP2AP020A00F_IS_55mA		0x20
+#define GP2AP020A00F_IS_110mA		0x30
+#define GP2AP020A00F_PIN_MASK		0x0c /* INT terminal setting */
+#define GP2AP020A00F_PIN_ALS_OR_PS	0x00
+#define GP2AP020A00F_PIN_ALS		0x04
+#define GP2AP020A00F_PIN_PS		0x08
+#define GP2AP020A00F_PIN_PS_DETECT	0x0c
+#define GP2AP020A00F_FREQ_MASK		0x02 /* LED modulation frequency */
+#define GP2AP020A00F_FREQ_327_5kHz	0x00
+#define GP2AP020A00F_FREQ_81_8kHz	0x02
+#define GP2AP020A00F_RST		0x01 /* Software reset */
+
+#define GP2AP020A00F_SCAN_MODE_LIGHT_CLEAR	0
+#define GP2AP020A00F_SCAN_MODE_LIGHT_IR		1
+#define GP2AP020A00F_SCAN_MODE_PROXIMITY	2
+#define GP2AP020A00F_CHAN_TIMESTAMP		3
+
+#define GP2AP020A00F_DATA_READY_TIMEOUT		msecs_to_jiffies(1000)
+#define GP2AP020A00F_DATA_REG(chan)		(GP2AP020A00F_D0_L_REG + \
+							(chan) * 2)
+#define GP2AP020A00F_THRESH_REG(th_val_id)	(GP2AP020A00F_TL_L_REG + \
+							(th_val_id) * 2)
+#define GP2AP020A00F_THRESH_VAL_ID(reg_addr)	((reg_addr - 4) / 2)
+
+#define GP2AP020A00F_SUBTRACT_MODE	0
+#define GP2AP020A00F_ADD_MODE		1
+
+#define GP2AP020A00F_MAX_CHANNELS	3
+
+enum gp2ap020a00f_opmode {
+	GP2AP020A00F_OPMODE_READ_RAW_CLEAR,
+	GP2AP020A00F_OPMODE_READ_RAW_IR,
+	GP2AP020A00F_OPMODE_READ_RAW_PROXIMITY,
+	GP2AP020A00F_OPMODE_ALS,
+	GP2AP020A00F_OPMODE_PS,
+	GP2AP020A00F_OPMODE_ALS_AND_PS,
+	GP2AP020A00F_OPMODE_PROX_DETECT,
+	GP2AP020A00F_OPMODE_SHUTDOWN,
+	GP2AP020A00F_NUM_OPMODES,
+};
+
+enum gp2ap020a00f_cmd {
+	GP2AP020A00F_CMD_READ_RAW_CLEAR,
+	GP2AP020A00F_CMD_READ_RAW_IR,
+	GP2AP020A00F_CMD_READ_RAW_PROXIMITY,
+	GP2AP020A00F_CMD_TRIGGER_CLEAR_EN,
+	GP2AP020A00F_CMD_TRIGGER_CLEAR_DIS,
+	GP2AP020A00F_CMD_TRIGGER_IR_EN,
+	GP2AP020A00F_CMD_TRIGGER_IR_DIS,
+	GP2AP020A00F_CMD_TRIGGER_PROX_EN,
+	GP2AP020A00F_CMD_TRIGGER_PROX_DIS,
+	GP2AP020A00F_CMD_ALS_HIGH_EV_EN,
+	GP2AP020A00F_CMD_ALS_HIGH_EV_DIS,
+	GP2AP020A00F_CMD_ALS_LOW_EV_EN,
+	GP2AP020A00F_CMD_ALS_LOW_EV_DIS,
+	GP2AP020A00F_CMD_PROX_HIGH_EV_EN,
+	GP2AP020A00F_CMD_PROX_HIGH_EV_DIS,
+	GP2AP020A00F_CMD_PROX_LOW_EV_EN,
+	GP2AP020A00F_CMD_PROX_LOW_EV_DIS,
+};
+
+enum gp2ap020a00f_flags {
+	GP2AP020A00F_FLAG_ALS_CLEAR_TRIGGER,
+	GP2AP020A00F_FLAG_ALS_IR_TRIGGER,
+	GP2AP020A00F_FLAG_PROX_TRIGGER,
+	GP2AP020A00F_FLAG_PROX_RISING_EV,
+	GP2AP020A00F_FLAG_PROX_FALLING_EV,
+	GP2AP020A00F_FLAG_ALS_RISING_EV,
+	GP2AP020A00F_FLAG_ALS_FALLING_EV,
+	GP2AP020A00F_FLAG_LUX_MODE_HI,
+	GP2AP020A00F_FLAG_DATA_READY,
+};
+
+enum gp2ap020a00f_thresh_val_id {
+	GP2AP020A00F_THRESH_TL,
+	GP2AP020A00F_THRESH_TH,
+	GP2AP020A00F_THRESH_PL,
+	GP2AP020A00F_THRESH_PH,
+};
+
+struct gp2ap020a00f_data {
+	const struct gp2ap020a00f_platform_data *pdata;
+	struct i2c_client *client;
+	struct mutex lock;
+	char *buffer;
+	struct regulator *vled_reg;
+	unsigned long flags;
+	enum gp2ap020a00f_opmode cur_opmode;
+	struct iio_trigger *trig;
+	struct regmap *regmap;
+	unsigned int thresh_val[4];
+	u8 debug_reg_addr;
+	struct irq_work work;
+	wait_queue_head_t data_ready_queue;
+};
+
+static const u8 gp2ap020a00f_reg_init_tab[] = {
+	[GP2AP020A00F_OP_REG] = GP2AP020A00F_OP3_SHUTDOWN,
+	[GP2AP020A00F_ALS_REG] = GP2AP020A00F_RES_A_25ms |
+				 GP2AP020A00F_RANGE_A_x8,
+	[GP2AP020A00F_PS_REG] = GP2AP020A00F_ALC_ON |
+				GP2AP020A00F_RES_P_1_56ms_x2 |
+				GP2AP020A00F_RANGE_P_x4,
+	[GP2AP020A00F_LED_REG] = GP2AP020A00F_INTVAL_0 |
+				 GP2AP020A00F_IS_110mA |
+				 GP2AP020A00F_FREQ_327_5kHz,
+	[GP2AP020A00F_TL_L_REG] = 0,
+	[GP2AP020A00F_TL_H_REG] = 0,
+	[GP2AP020A00F_TH_L_REG] = 0,
+	[GP2AP020A00F_TH_H_REG] = 0,
+	[GP2AP020A00F_PL_L_REG] = 0,
+	[GP2AP020A00F_PL_H_REG] = 0,
+	[GP2AP020A00F_PH_L_REG] = 0,
+	[GP2AP020A00F_PH_H_REG] = 0,
+};
+
+static bool gp2ap020a00f_is_volatile_reg(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case GP2AP020A00F_OP_REG:
+	case GP2AP020A00F_D0_L_REG:
+	case GP2AP020A00F_D0_H_REG:
+	case GP2AP020A00F_D1_L_REG:
+	case GP2AP020A00F_D1_H_REG:
+	case GP2AP020A00F_D2_L_REG:
+	case GP2AP020A00F_D2_H_REG:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static const struct regmap_config gp2ap020a00f_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+
+	.max_register = GP2AP020A00F_D2_H_REG,
+	.cache_type = REGCACHE_RBTREE,
+
+	.volatile_reg = gp2ap020a00f_is_volatile_reg,
+};
+
+static const struct gp2ap020a00f_mutable_config_regs {
+	u8 op_reg;
+	u8 als_reg;
+	u8 ps_reg;
+	u8 led_reg;
+} opmode_regs_settings[GP2AP020A00F_NUM_OPMODES] = {
+	[GP2AP020A00F_OPMODE_READ_RAW_CLEAR] = {
+		GP2AP020A00F_OP_ALS | GP2AP020A00F_OP2_CONT_OPERATION
+		| GP2AP020A00F_OP3_OPERATION
+		| GP2AP020A00F_TYPE_AUTO_CALC,
+		GP2AP020A00F_PRST_ONCE,
+		GP2AP020A00F_INTTYPE_LEVEL,
+		GP2AP020A00F_PIN_ALS
+	},
+	[GP2AP020A00F_OPMODE_READ_RAW_IR] = {
+		GP2AP020A00F_OP_ALS | GP2AP020A00F_OP2_CONT_OPERATION
+		| GP2AP020A00F_OP3_OPERATION
+		| GP2AP020A00F_TYPE_MANUAL_CALC,
+		GP2AP020A00F_PRST_ONCE,
+		GP2AP020A00F_INTTYPE_LEVEL,
+		GP2AP020A00F_PIN_ALS
+	},
+	[GP2AP020A00F_OPMODE_READ_RAW_PROXIMITY] = {
+		GP2AP020A00F_OP_PS | GP2AP020A00F_OP2_CONT_OPERATION
+		| GP2AP020A00F_OP3_OPERATION
+		| GP2AP020A00F_TYPE_MANUAL_CALC,
+		GP2AP020A00F_PRST_ONCE,
+		GP2AP020A00F_INTTYPE_LEVEL,
+		GP2AP020A00F_PIN_PS
+	},
+	[GP2AP020A00F_OPMODE_PROX_DETECT] = {
+		GP2AP020A00F_OP_PS | GP2AP020A00F_OP2_CONT_OPERATION
+		| GP2AP020A00F_OP3_OPERATION
+		| GP2AP020A00F_TYPE_MANUAL_CALC,
+		GP2AP020A00F_PRST_4_CYCLES,
+		GP2AP020A00F_INTTYPE_PULSE,
+		GP2AP020A00F_PIN_PS_DETECT
+	},
+	[GP2AP020A00F_OPMODE_ALS] = {
+		GP2AP020A00F_OP_ALS | GP2AP020A00F_OP2_CONT_OPERATION
+		| GP2AP020A00F_OP3_OPERATION
+		| GP2AP020A00F_TYPE_AUTO_CALC,
+		GP2AP020A00F_PRST_ONCE,
+		GP2AP020A00F_INTTYPE_LEVEL,
+		GP2AP020A00F_PIN_ALS
+	},
+	[GP2AP020A00F_OPMODE_PS] = {
+		GP2AP020A00F_OP_PS | GP2AP020A00F_OP2_CONT_OPERATION
+		| GP2AP020A00F_OP3_OPERATION
+		| GP2AP020A00F_TYPE_MANUAL_CALC,
+		GP2AP020A00F_PRST_4_CYCLES,
+		GP2AP020A00F_INTTYPE_LEVEL,
+		GP2AP020A00F_PIN_PS
+	},
+	[GP2AP020A00F_OPMODE_ALS_AND_PS] = {
+		GP2AP020A00F_OP_ALS_AND_PS
+		| GP2AP020A00F_OP2_CONT_OPERATION
+		| GP2AP020A00F_OP3_OPERATION
+		| GP2AP020A00F_TYPE_AUTO_CALC,
+		GP2AP020A00F_PRST_4_CYCLES,
+		GP2AP020A00F_INTTYPE_LEVEL,
+		GP2AP020A00F_PIN_ALS_OR_PS
+	},
+	[GP2AP020A00F_OPMODE_SHUTDOWN] = { GP2AP020A00F_OP3_SHUTDOWN, },
+};
+
+static int gp2ap020a00f_set_operation_mode(struct gp2ap020a00f_data *data,
+					enum gp2ap020a00f_opmode op)
+{
+	unsigned int op_reg_val;
+	int err;
+
+	if (op != GP2AP020A00F_OPMODE_SHUTDOWN) {
+		err = regmap_read(data->regmap, GP2AP020A00F_OP_REG,
+					&op_reg_val);
+		if (err < 0)
+			return err;
+		/*
+		 * Shutdown the device if the operation being executed entails
+		 * mode transition.
+		 */
+		if ((opmode_regs_settings[op].op_reg & GP2AP020A00F_OP_MASK) !=
+		    (op_reg_val & GP2AP020A00F_OP_MASK)) {
+			/* set shutdown mode */
+			err = regmap_update_bits(data->regmap,
+				GP2AP020A00F_OP_REG, GP2AP020A00F_OP3_MASK,
+				GP2AP020A00F_OP3_SHUTDOWN);
+			if (err < 0)
+				return err;
+		}
+
+		err = regmap_update_bits(data->regmap, GP2AP020A00F_ALS_REG,
+			GP2AP020A00F_PRST_MASK, opmode_regs_settings[op]
+								.als_reg);
+		if (err < 0)
+			return err;
+
+		err = regmap_update_bits(data->regmap, GP2AP020A00F_PS_REG,
+			GP2AP020A00F_INTTYPE_MASK, opmode_regs_settings[op]
+								.ps_reg);
+		if (err < 0)
+			return err;
+
+		err = regmap_update_bits(data->regmap, GP2AP020A00F_LED_REG,
+			GP2AP020A00F_PIN_MASK, opmode_regs_settings[op]
+								.led_reg);
+		if (err < 0)
+			return err;
+	}
+
+	/* Set OP_REG and apply operation mode (power on / off) */
+	err = regmap_update_bits(data->regmap,
+				 GP2AP020A00F_OP_REG,
+				 GP2AP020A00F_OP_MASK | GP2AP020A00F_OP2_MASK |
+				 GP2AP020A00F_OP3_MASK | GP2AP020A00F_TYPE_MASK,
+				 opmode_regs_settings[op].op_reg);
+	if (err < 0)
+		return err;
+
+	data->cur_opmode = op;
+
+	return 0;
+}
+
+static bool gp2ap020a00f_als_enabled(struct gp2ap020a00f_data *data)
+{
+	return test_bit(GP2AP020A00F_FLAG_ALS_CLEAR_TRIGGER, &data->flags) ||
+	       test_bit(GP2AP020A00F_FLAG_ALS_IR_TRIGGER, &data->flags) ||
+	       test_bit(GP2AP020A00F_FLAG_ALS_RISING_EV, &data->flags) ||
+	       test_bit(GP2AP020A00F_FLAG_ALS_FALLING_EV, &data->flags);
+}
+
+static bool gp2ap020a00f_prox_detect_enabled(struct gp2ap020a00f_data *data)
+{
+	return test_bit(GP2AP020A00F_FLAG_PROX_RISING_EV, &data->flags) ||
+	       test_bit(GP2AP020A00F_FLAG_PROX_FALLING_EV, &data->flags);
+}
+
+static int gp2ap020a00f_write_event_threshold(struct gp2ap020a00f_data *data,
+				enum gp2ap020a00f_thresh_val_id th_val_id,
+				bool enable)
+{
+	__le16 thresh_buf = 0;
+	unsigned int thresh_reg_val;
+
+	if (!enable)
+		thresh_reg_val = 0;
+	else if (test_bit(GP2AP020A00F_FLAG_LUX_MODE_HI, &data->flags) &&
+		 th_val_id != GP2AP020A00F_THRESH_PL &&
+		 th_val_id != GP2AP020A00F_THRESH_PH)
+		/*
+		 * For the high lux mode ALS threshold has to be scaled down
+		 * to allow for proper comparison with the output value.
+		 */
+		thresh_reg_val = data->thresh_val[th_val_id] / 16;
+	else
+		thresh_reg_val = data->thresh_val[th_val_id] > 16000 ?
+					16000 :
+					data->thresh_val[th_val_id];
+
+	thresh_buf = cpu_to_le16(thresh_reg_val);
+
+	return regmap_bulk_write(data->regmap,
+				 GP2AP020A00F_THRESH_REG(th_val_id),
+				 (u8 *)&thresh_buf, 2);
+}
+
+static int gp2ap020a00f_alter_opmode(struct gp2ap020a00f_data *data,
+			enum gp2ap020a00f_opmode diff_mode, int add_sub)
+{
+	enum gp2ap020a00f_opmode new_mode;
+
+	if (diff_mode != GP2AP020A00F_OPMODE_ALS &&
+	    diff_mode != GP2AP020A00F_OPMODE_PS)
+		return -EINVAL;
+
+	if (add_sub == GP2AP020A00F_ADD_MODE) {
+		if (data->cur_opmode == GP2AP020A00F_OPMODE_SHUTDOWN)
+			new_mode =  diff_mode;
+		else
+			new_mode = GP2AP020A00F_OPMODE_ALS_AND_PS;
+	} else {
+		if (data->cur_opmode == GP2AP020A00F_OPMODE_ALS_AND_PS)
+			new_mode = (diff_mode == GP2AP020A00F_OPMODE_ALS) ?
+					GP2AP020A00F_OPMODE_PS :
+					GP2AP020A00F_OPMODE_ALS;
+		else
+			new_mode = GP2AP020A00F_OPMODE_SHUTDOWN;
+	}
+
+	return gp2ap020a00f_set_operation_mode(data, new_mode);
+}
+
+static int gp2ap020a00f_exec_cmd(struct gp2ap020a00f_data *data,
+					enum gp2ap020a00f_cmd cmd)
+{
+	int err = 0;
+
+	switch (cmd) {
+	case GP2AP020A00F_CMD_READ_RAW_CLEAR:
+		if (data->cur_opmode != GP2AP020A00F_OPMODE_SHUTDOWN)
+			return -EBUSY;
+		err = gp2ap020a00f_set_operation_mode(data,
+					GP2AP020A00F_OPMODE_READ_RAW_CLEAR);
+		break;
+	case GP2AP020A00F_CMD_READ_RAW_IR:
+		if (data->cur_opmode != GP2AP020A00F_OPMODE_SHUTDOWN)
+			return -EBUSY;
+		err = gp2ap020a00f_set_operation_mode(data,
+					GP2AP020A00F_OPMODE_READ_RAW_IR);
+		break;
+	case GP2AP020A00F_CMD_READ_RAW_PROXIMITY:
+		if (data->cur_opmode != GP2AP020A00F_OPMODE_SHUTDOWN)
+			return -EBUSY;
+		err = gp2ap020a00f_set_operation_mode(data,
+					GP2AP020A00F_OPMODE_READ_RAW_PROXIMITY);
+		break;
+	case GP2AP020A00F_CMD_TRIGGER_CLEAR_EN:
+		if (data->cur_opmode == GP2AP020A00F_OPMODE_PROX_DETECT)
+			return -EBUSY;
+		if (!gp2ap020a00f_als_enabled(data))
+			err = gp2ap020a00f_alter_opmode(data,
+						GP2AP020A00F_OPMODE_ALS,
+						GP2AP020A00F_ADD_MODE);
+		set_bit(GP2AP020A00F_FLAG_ALS_CLEAR_TRIGGER, &data->flags);
+		break;
+	case GP2AP020A00F_CMD_TRIGGER_CLEAR_DIS:
+		clear_bit(GP2AP020A00F_FLAG_ALS_CLEAR_TRIGGER, &data->flags);
+		if (gp2ap020a00f_als_enabled(data))
+			break;
+		err = gp2ap020a00f_alter_opmode(data,
+						GP2AP020A00F_OPMODE_ALS,
+						GP2AP020A00F_SUBTRACT_MODE);
+		break;
+	case GP2AP020A00F_CMD_TRIGGER_IR_EN:
+		if (data->cur_opmode == GP2AP020A00F_OPMODE_PROX_DETECT)
+			return -EBUSY;
+		if (!gp2ap020a00f_als_enabled(data))
+			err = gp2ap020a00f_alter_opmode(data,
+						GP2AP020A00F_OPMODE_ALS,
+						GP2AP020A00F_ADD_MODE);
+		set_bit(GP2AP020A00F_FLAG_ALS_IR_TRIGGER, &data->flags);
+		break;
+	case GP2AP020A00F_CMD_TRIGGER_IR_DIS:
+		clear_bit(GP2AP020A00F_FLAG_ALS_IR_TRIGGER, &data->flags);
+		if (gp2ap020a00f_als_enabled(data))
+			break;
+		err = gp2ap020a00f_alter_opmode(data,
+						GP2AP020A00F_OPMODE_ALS,
+						GP2AP020A00F_SUBTRACT_MODE);
+		break;
+	case GP2AP020A00F_CMD_TRIGGER_PROX_EN:
+		if (data->cur_opmode == GP2AP020A00F_OPMODE_PROX_DETECT)
+			return -EBUSY;
+		err = gp2ap020a00f_alter_opmode(data,
+						GP2AP020A00F_OPMODE_PS,
+						GP2AP020A00F_ADD_MODE);
+		set_bit(GP2AP020A00F_FLAG_PROX_TRIGGER, &data->flags);
+		break;
+	case GP2AP020A00F_CMD_TRIGGER_PROX_DIS:
+		clear_bit(GP2AP020A00F_FLAG_PROX_TRIGGER, &data->flags);
+		err = gp2ap020a00f_alter_opmode(data,
+						GP2AP020A00F_OPMODE_PS,
+						GP2AP020A00F_SUBTRACT_MODE);
+		break;
+	case GP2AP020A00F_CMD_ALS_HIGH_EV_EN:
+		if (test_bit(GP2AP020A00F_FLAG_ALS_RISING_EV, &data->flags))
+			return 0;
+		if (data->cur_opmode == GP2AP020A00F_OPMODE_PROX_DETECT)
+			return -EBUSY;
+		if (!gp2ap020a00f_als_enabled(data)) {
+			err = gp2ap020a00f_alter_opmode(data,
+						GP2AP020A00F_OPMODE_ALS,
+						GP2AP020A00F_ADD_MODE);
+			if (err < 0)
+				return err;
+		}
+		set_bit(GP2AP020A00F_FLAG_ALS_RISING_EV, &data->flags);
+		err =  gp2ap020a00f_write_event_threshold(data,
+					GP2AP020A00F_THRESH_TH, true);
+		break;
+	case GP2AP020A00F_CMD_ALS_HIGH_EV_DIS:
+		if (!test_bit(GP2AP020A00F_FLAG_ALS_RISING_EV, &data->flags))
+			return 0;
+		clear_bit(GP2AP020A00F_FLAG_ALS_RISING_EV, &data->flags);
+		if (!gp2ap020a00f_als_enabled(data)) {
+			err = gp2ap020a00f_alter_opmode(data,
+						GP2AP020A00F_OPMODE_ALS,
+						GP2AP020A00F_SUBTRACT_MODE);
+			if (err < 0)
+				return err;
+		}
+		err =  gp2ap020a00f_write_event_threshold(data,
+					GP2AP020A00F_THRESH_TH, false);
+		break;
+	case GP2AP020A00F_CMD_ALS_LOW_EV_EN:
+		if (test_bit(GP2AP020A00F_FLAG_ALS_FALLING_EV, &data->flags))
+			return 0;
+		if (data->cur_opmode == GP2AP020A00F_OPMODE_PROX_DETECT)
+			return -EBUSY;
+		if (!gp2ap020a00f_als_enabled(data)) {
+			err = gp2ap020a00f_alter_opmode(data,
+						GP2AP020A00F_OPMODE_ALS,
+						GP2AP020A00F_ADD_MODE);
+			if (err < 0)
+				return err;
+		}
+		set_bit(GP2AP020A00F_FLAG_ALS_FALLING_EV, &data->flags);
+		err =  gp2ap020a00f_write_event_threshold(data,
+					GP2AP020A00F_THRESH_TL, true);
+		break;
+	case GP2AP020A00F_CMD_ALS_LOW_EV_DIS:
+		if (!test_bit(GP2AP020A00F_FLAG_ALS_FALLING_EV, &data->flags))
+			return 0;
+		clear_bit(GP2AP020A00F_FLAG_ALS_FALLING_EV, &data->flags);
+		if (!gp2ap020a00f_als_enabled(data)) {
+			err = gp2ap020a00f_alter_opmode(data,
+						GP2AP020A00F_OPMODE_ALS,
+						GP2AP020A00F_SUBTRACT_MODE);
+			if (err < 0)
+				return err;
+		}
+		err =  gp2ap020a00f_write_event_threshold(data,
+					GP2AP020A00F_THRESH_TL, false);
+		break;
+	case GP2AP020A00F_CMD_PROX_HIGH_EV_EN:
+		if (test_bit(GP2AP020A00F_FLAG_PROX_RISING_EV, &data->flags))
+			return 0;
+		if (gp2ap020a00f_als_enabled(data) ||
+		    data->cur_opmode == GP2AP020A00F_OPMODE_PS)
+			return -EBUSY;
+		if (!gp2ap020a00f_prox_detect_enabled(data)) {
+			err = gp2ap020a00f_set_operation_mode(data,
+					GP2AP020A00F_OPMODE_PROX_DETECT);
+			if (err < 0)
+				return err;
+		}
+		set_bit(GP2AP020A00F_FLAG_PROX_RISING_EV, &data->flags);
+		err =  gp2ap020a00f_write_event_threshold(data,
+					GP2AP020A00F_THRESH_PH, true);
+		break;
+	case GP2AP020A00F_CMD_PROX_HIGH_EV_DIS:
+		if (!test_bit(GP2AP020A00F_FLAG_PROX_RISING_EV, &data->flags))
+			return 0;
+		clear_bit(GP2AP020A00F_FLAG_PROX_RISING_EV, &data->flags);
+		err = gp2ap020a00f_set_operation_mode(data,
+					GP2AP020A00F_OPMODE_SHUTDOWN);
+		if (err < 0)
+			return err;
+		err =  gp2ap020a00f_write_event_threshold(data,
+					GP2AP020A00F_THRESH_PH, false);
+		break;
+	case GP2AP020A00F_CMD_PROX_LOW_EV_EN:
+		if (test_bit(GP2AP020A00F_FLAG_PROX_FALLING_EV, &data->flags))
+			return 0;
+		if (gp2ap020a00f_als_enabled(data) ||
+		    data->cur_opmode == GP2AP020A00F_OPMODE_PS)
+			return -EBUSY;
+		if (!gp2ap020a00f_prox_detect_enabled(data)) {
+			err = gp2ap020a00f_set_operation_mode(data,
+					GP2AP020A00F_OPMODE_PROX_DETECT);
+			if (err < 0)
+				return err;
+		}
+		set_bit(GP2AP020A00F_FLAG_PROX_FALLING_EV, &data->flags);
+		err =  gp2ap020a00f_write_event_threshold(data,
+					GP2AP020A00F_THRESH_PL, true);
+		break;
+	case GP2AP020A00F_CMD_PROX_LOW_EV_DIS:
+		if (!test_bit(GP2AP020A00F_FLAG_PROX_FALLING_EV, &data->flags))
+			return 0;
+		clear_bit(GP2AP020A00F_FLAG_PROX_FALLING_EV, &data->flags);
+		err = gp2ap020a00f_set_operation_mode(data,
+					GP2AP020A00F_OPMODE_SHUTDOWN);
+		if (err < 0)
+			return err;
+		err =  gp2ap020a00f_write_event_threshold(data,
+					GP2AP020A00F_THRESH_PL, false);
+		break;
+	}
+
+	return err;
+}
+
+static int wait_conversion_complete_irq(struct gp2ap020a00f_data *data)
+{
+	int ret;
+
+	ret = wait_event_timeout(data->data_ready_queue,
+				 test_bit(GP2AP020A00F_FLAG_DATA_READY,
+					  &data->flags),
+				 GP2AP020A00F_DATA_READY_TIMEOUT);
+	clear_bit(GP2AP020A00F_FLAG_DATA_READY, &data->flags);
+
+	return ret > 0 ? 0 : -ETIME;
+}
+
+static int gp2ap020a00f_read_output(struct gp2ap020a00f_data *data,
+					unsigned int output_reg, int *val)
+{
+	u8 reg_buf[2];
+	int err;
+
+	err = wait_conversion_complete_irq(data);
+	if (err < 0)
+		dev_dbg(&data->client->dev, "data ready timeout\n");
+
+	err = regmap_bulk_read(data->regmap, output_reg, reg_buf, 2);
+	if (err < 0)
+		return err;
+
+	*val = le16_to_cpup((__le16 *)reg_buf);
+
+	return err;
+}
+
+static bool gp2ap020a00f_adjust_lux_mode(struct gp2ap020a00f_data *data,
+				 int output_val)
+{
+	u8 new_range = 0xff;
+	int err;
+
+	if (!test_bit(GP2AP020A00F_FLAG_LUX_MODE_HI, &data->flags)) {
+		if (output_val > 16000) {
+			set_bit(GP2AP020A00F_FLAG_LUX_MODE_HI, &data->flags);
+			new_range = GP2AP020A00F_RANGE_A_x128;
+		}
+	} else {
+		if (output_val < 1000) {
+			clear_bit(GP2AP020A00F_FLAG_LUX_MODE_HI, &data->flags);
+			new_range = GP2AP020A00F_RANGE_A_x8;
+		}
+	}
+
+	if (new_range != 0xff) {
+		/* Clear als threshold registers to avoid spurious
+		 * events caused by lux mode transition.
+		 */
+		err =  gp2ap020a00f_write_event_threshold(data,
+					GP2AP020A00F_THRESH_TH, false);
+		if (err < 0) {
+			dev_err(&data->client->dev,
+				"Clearing als threshold register failed.\n");
+			return false;
+		}
+
+		err =  gp2ap020a00f_write_event_threshold(data,
+					GP2AP020A00F_THRESH_TL, false);
+		if (err < 0) {
+			dev_err(&data->client->dev,
+				"Clearing als threshold register failed.\n");
+			return false;
+		}
+
+		/* Change lux mode */
+		err = regmap_update_bits(data->regmap,
+			GP2AP020A00F_OP_REG,
+			GP2AP020A00F_OP3_MASK,
+			GP2AP020A00F_OP3_SHUTDOWN);
+
+		if (err < 0) {
+			dev_err(&data->client->dev,
+				"Shutting down the device failed.\n");
+			return false;
+		}
+
+		err = regmap_update_bits(data->regmap,
+			GP2AP020A00F_ALS_REG,
+			GP2AP020A00F_RANGE_A_MASK,
+			new_range);
+
+		if (err < 0) {
+			dev_err(&data->client->dev,
+				"Adjusting device lux mode failed.\n");
+			return false;
+		}
+
+		err = regmap_update_bits(data->regmap,
+			GP2AP020A00F_OP_REG,
+			GP2AP020A00F_OP3_MASK,
+			GP2AP020A00F_OP3_OPERATION);
+
+		if (err < 0) {
+			dev_err(&data->client->dev,
+				"Powering up the device failed.\n");
+			return false;
+		}
+
+		/* Adjust als threshold register values to the new lux mode */
+		if (test_bit(GP2AP020A00F_FLAG_ALS_RISING_EV, &data->flags)) {
+			err =  gp2ap020a00f_write_event_threshold(data,
+					GP2AP020A00F_THRESH_TH, true);
+			if (err < 0) {
+				dev_err(&data->client->dev,
+				"Adjusting als threshold value failed.\n");
+				return false;
+			}
+		}
+
+		if (test_bit(GP2AP020A00F_FLAG_ALS_FALLING_EV, &data->flags)) {
+			err =  gp2ap020a00f_write_event_threshold(data,
+					GP2AP020A00F_THRESH_TL, true);
+			if (err < 0) {
+				dev_err(&data->client->dev,
+				"Adjusting als threshold value failed.\n");
+				return false;
+			}
+		}
+
+		return true;
+	}
+
+	return false;
+}
+
+static void gp2ap020a00f_output_to_lux(struct gp2ap020a00f_data *data,
+						int *output_val)
+{
+	if (test_bit(GP2AP020A00F_FLAG_LUX_MODE_HI, &data->flags))
+		*output_val *= 16;
+}
+
+static void gp2ap020a00f_iio_trigger_work(struct irq_work *work)
+{
+	struct gp2ap020a00f_data *data =
+		container_of(work, struct gp2ap020a00f_data, work);
+
+	iio_trigger_poll(data->trig, 0);
+}
+
+static irqreturn_t gp2ap020a00f_prox_sensing_handler(int irq, void *data)
+{
+	struct iio_dev *indio_dev = data;
+	struct gp2ap020a00f_data *priv = iio_priv(indio_dev);
+	unsigned int op_reg_val;
+	int ret;
+
+	/* Read interrupt flags */
+	ret = regmap_read(priv->regmap, GP2AP020A00F_OP_REG, &op_reg_val);
+	if (ret < 0)
+		return IRQ_HANDLED;
+
+	if (gp2ap020a00f_prox_detect_enabled(priv)) {
+		if (op_reg_val & GP2AP020A00F_PROX_DETECT) {
+			iio_push_event(indio_dev,
+			       IIO_UNMOD_EVENT_CODE(
+				    IIO_PROXIMITY,
+				    GP2AP020A00F_SCAN_MODE_PROXIMITY,
+				    IIO_EV_TYPE_ROC,
+				    IIO_EV_DIR_RISING),
+			       iio_get_time_ns());
+		} else {
+			iio_push_event(indio_dev,
+			       IIO_UNMOD_EVENT_CODE(
+				    IIO_PROXIMITY,
+				    GP2AP020A00F_SCAN_MODE_PROXIMITY,
+				    IIO_EV_TYPE_ROC,
+				    IIO_EV_DIR_FALLING),
+			       iio_get_time_ns());
+		}
+	}
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t gp2ap020a00f_thresh_event_handler(int irq, void *data)
+{
+	struct iio_dev *indio_dev = data;
+	struct gp2ap020a00f_data *priv = iio_priv(indio_dev);
+	u8 op_reg_flags, d0_reg_buf[2];
+	unsigned int output_val, op_reg_val;
+	int thresh_val_id, ret;
+
+	/* Read interrupt flags */
+	ret = regmap_read(priv->regmap, GP2AP020A00F_OP_REG,
+							&op_reg_val);
+	if (ret < 0)
+		goto done;
+
+	op_reg_flags = op_reg_val & (GP2AP020A00F_FLAG_A | GP2AP020A00F_FLAG_P
+					| GP2AP020A00F_PROX_DETECT);
+
+	op_reg_val &= (~GP2AP020A00F_FLAG_A & ~GP2AP020A00F_FLAG_P
+					& ~GP2AP020A00F_PROX_DETECT);
+
+	/* Clear interrupt flags (if not in INTTYPE_PULSE mode) */
+	if (priv->cur_opmode != GP2AP020A00F_OPMODE_PROX_DETECT) {
+		ret = regmap_write(priv->regmap, GP2AP020A00F_OP_REG,
+								op_reg_val);
+		if (ret < 0)
+			goto done;
+	}
+
+	if (op_reg_flags & GP2AP020A00F_FLAG_A) {
+		/* Check D0 register to assess if the lux mode
+		 * transition is required.
+		 */
+		ret = regmap_bulk_read(priv->regmap, GP2AP020A00F_D0_L_REG,
+							d0_reg_buf, 2);
+		if (ret < 0)
+			goto done;
+
+		output_val = le16_to_cpup((__le16 *)d0_reg_buf);
+
+		if (gp2ap020a00f_adjust_lux_mode(priv, output_val))
+			goto done;
+
+		gp2ap020a00f_output_to_lux(priv, &output_val);
+
+		/*
+		 * We need to check output value to distinguish
+		 * between high and low ambient light threshold event.
+		 */
+		if (test_bit(GP2AP020A00F_FLAG_ALS_RISING_EV, &priv->flags)) {
+			thresh_val_id =
+			    GP2AP020A00F_THRESH_VAL_ID(GP2AP020A00F_TH_L_REG);
+			if (output_val > priv->thresh_val[thresh_val_id])
+				iio_push_event(indio_dev,
+				       IIO_MOD_EVENT_CODE(
+					    IIO_LIGHT,
+					    GP2AP020A00F_SCAN_MODE_LIGHT_CLEAR,
+					    IIO_MOD_LIGHT_CLEAR,
+					    IIO_EV_TYPE_THRESH,
+					    IIO_EV_DIR_RISING),
+				       iio_get_time_ns());
+		}
+
+		if (test_bit(GP2AP020A00F_FLAG_ALS_FALLING_EV, &priv->flags)) {
+			thresh_val_id =
+			    GP2AP020A00F_THRESH_VAL_ID(GP2AP020A00F_TL_L_REG);
+			if (output_val < priv->thresh_val[thresh_val_id])
+				iio_push_event(indio_dev,
+				       IIO_MOD_EVENT_CODE(
+					    IIO_LIGHT,
+					    GP2AP020A00F_SCAN_MODE_LIGHT_CLEAR,
+					    IIO_MOD_LIGHT_CLEAR,
+					    IIO_EV_TYPE_THRESH,
+					    IIO_EV_DIR_FALLING),
+				       iio_get_time_ns());
+		}
+	}
+
+	if (priv->cur_opmode == GP2AP020A00F_OPMODE_READ_RAW_CLEAR ||
+	    priv->cur_opmode == GP2AP020A00F_OPMODE_READ_RAW_IR ||
+	    priv->cur_opmode == GP2AP020A00F_OPMODE_READ_RAW_PROXIMITY) {
+		set_bit(GP2AP020A00F_FLAG_DATA_READY, &priv->flags);
+		wake_up(&priv->data_ready_queue);
+		goto done;
+	}
+
+	if (test_bit(GP2AP020A00F_FLAG_ALS_CLEAR_TRIGGER, &priv->flags) ||
+	    test_bit(GP2AP020A00F_FLAG_ALS_IR_TRIGGER, &priv->flags) ||
+	    test_bit(GP2AP020A00F_FLAG_PROX_TRIGGER, &priv->flags))
+		/* This fires off the trigger. */
+		irq_work_queue(&priv->work);
+
+done:
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t gp2ap020a00f_trigger_handler(int irq, void *data)
+{
+	struct iio_poll_func *pf = data;
+	struct iio_dev *indio_dev = pf->indio_dev;
+	struct gp2ap020a00f_data *priv = iio_priv(indio_dev);
+	size_t d_size = 0;
+	__le32 light_lux;
+	int i, out_val, ret;
+
+	for_each_set_bit(i, indio_dev->active_scan_mask,
+		indio_dev->masklength) {
+		ret = regmap_bulk_read(priv->regmap,
+				GP2AP020A00F_DATA_REG(i),
+				&priv->buffer[d_size], 2);
+		if (ret < 0)
+			goto done;
+
+		if (i == GP2AP020A00F_SCAN_MODE_LIGHT_CLEAR ||
+		    i == GP2AP020A00F_SCAN_MODE_LIGHT_IR) {
+			out_val = le16_to_cpup((__le16 *)&priv->buffer[d_size]);
+			gp2ap020a00f_output_to_lux(priv, &out_val);
+			light_lux = cpu_to_le32(out_val);
+			memcpy(&priv->buffer[d_size], (u8 *)&light_lux, 4);
+			d_size += 4;
+		} else {
+			d_size += 2;
+		}
+	}
+
+	if (indio_dev->scan_timestamp) {
+		s64 *timestamp = (s64 *)((u8 *)priv->buffer +
+						ALIGN(d_size, sizeof(s64)));
+		*timestamp = pf->timestamp;
+	}
+
+	iio_push_to_buffers(indio_dev, priv->buffer);
+done:
+	iio_trigger_notify_done(indio_dev->trig);
+
+	return IRQ_HANDLED;
+}
+
+static u8 gp2ap020a00f_get_reg_by_event_code(u64 event_code)
+{
+	int event_dir = IIO_EVENT_CODE_EXTRACT_DIR(event_code);
+
+	switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) {
+	case IIO_PROXIMITY:
+		if (event_dir == IIO_EV_DIR_RISING)
+			return GP2AP020A00F_PH_L_REG;
+		else
+			return GP2AP020A00F_PL_L_REG;
+	case IIO_LIGHT:
+		if (event_dir == IIO_EV_DIR_RISING)
+			return GP2AP020A00F_TH_L_REG;
+		else
+			return GP2AP020A00F_TL_L_REG;
+	}
+
+	return -EINVAL;
+}
+
+static int gp2ap020a00f_write_event_val(struct iio_dev *indio_dev,
+					u64 event_code, int val)
+{
+	struct gp2ap020a00f_data *data = iio_priv(indio_dev);
+	bool event_en = false;
+	u8 thresh_val_id;
+	u8 thresh_reg_l;
+	int err = 0;
+
+	mutex_lock(&data->lock);
+
+	thresh_reg_l = gp2ap020a00f_get_reg_by_event_code(event_code);
+	thresh_val_id = GP2AP020A00F_THRESH_VAL_ID(thresh_reg_l);
+
+	if (thresh_val_id > GP2AP020A00F_THRESH_PH) {
+		err = -EINVAL;
+		goto error_unlock;
+	}
+
+	switch (thresh_reg_l) {
+	case GP2AP020A00F_TH_L_REG:
+		event_en = test_bit(GP2AP020A00F_FLAG_ALS_RISING_EV,
+							&data->flags);
+		break;
+	case GP2AP020A00F_TL_L_REG:
+		event_en = test_bit(GP2AP020A00F_FLAG_ALS_FALLING_EV,
+							&data->flags);
+		break;
+	case GP2AP020A00F_PH_L_REG:
+		if (val == 0) {
+			err = -EINVAL;
+			goto error_unlock;
+		}
+		event_en = test_bit(GP2AP020A00F_FLAG_PROX_RISING_EV,
+							&data->flags);
+		break;
+	case GP2AP020A00F_PL_L_REG:
+		if (val == 0) {
+			err = -EINVAL;
+			goto error_unlock;
+		}
+		event_en = test_bit(GP2AP020A00F_FLAG_PROX_FALLING_EV,
+							&data->flags);
+		break;
+	}
+
+	data->thresh_val[thresh_val_id] = val;
+	err =  gp2ap020a00f_write_event_threshold(data, thresh_val_id,
+							event_en);
+error_unlock:
+	mutex_unlock(&data->lock);
+
+	return err;
+}
+
+static int gp2ap020a00f_read_event_val(struct iio_dev *indio_dev,
+					u64 event_code, int *val)
+{
+	struct gp2ap020a00f_data *data = iio_priv(indio_dev);
+	u8 thresh_reg_l;
+	int err = 0;
+
+	mutex_lock(&data->lock);
+
+	thresh_reg_l = gp2ap020a00f_get_reg_by_event_code(event_code);
+
+	if (thresh_reg_l > GP2AP020A00F_PH_L_REG) {
+		err = -EINVAL;
+		goto error_unlock;
+	}
+
+	*val = data->thresh_val[GP2AP020A00F_THRESH_VAL_ID(thresh_reg_l)];
+
+error_unlock:
+	mutex_unlock(&data->lock);
+
+	return err;
+}
+
+static int gp2ap020a00f_write_prox_event_config(struct iio_dev *indio_dev,
+					u64 event_code, int state)
+{
+	struct gp2ap020a00f_data *data = iio_priv(indio_dev);
+	enum gp2ap020a00f_cmd cmd_high_ev, cmd_low_ev;
+	int err;
+
+	cmd_high_ev = state ? GP2AP020A00F_CMD_PROX_HIGH_EV_EN :
+			      GP2AP020A00F_CMD_PROX_HIGH_EV_DIS;
+	cmd_low_ev = state ? GP2AP020A00F_CMD_PROX_LOW_EV_EN :
+			     GP2AP020A00F_CMD_PROX_LOW_EV_DIS;
+
+	/*
+	 * In order to enable proximity detection feature in the device
+	 * both high and low threshold registers have to be written
+	 * with different values, greater than zero.
+	 */
+	if (state) {
+		if (data->thresh_val[GP2AP020A00F_THRESH_PL] == 0)
+			return -EINVAL;
+
+		if (data->thresh_val[GP2AP020A00F_THRESH_PH] == 0)
+			return -EINVAL;
+	}
+
+	err = gp2ap020a00f_exec_cmd(data, cmd_high_ev);
+	if (err < 0)
+		return err;
+
+	err = gp2ap020a00f_exec_cmd(data, cmd_low_ev);
+	if (err < 0)
+		return err;
+
+	free_irq(data->client->irq, indio_dev);
+
+	if (state)
+		err = request_threaded_irq(data->client->irq, NULL,
+					   &gp2ap020a00f_prox_sensing_handler,
+					   IRQF_TRIGGER_RISING |
+					   IRQF_TRIGGER_FALLING |
+					   IRQF_ONESHOT,
+					   "gp2ap020a00f_prox_sensing",
+					   indio_dev);
+	else {
+		err = request_threaded_irq(data->client->irq, NULL,
+					   &gp2ap020a00f_thresh_event_handler,
+					   IRQF_TRIGGER_FALLING |
+					   IRQF_ONESHOT,
+					   "gp2ap020a00f_thresh_event",
+					   indio_dev);
+	}
+
+	return err;
+}
+
+static int gp2ap020a00f_write_event_config(struct iio_dev *indio_dev,
+					u64 event_code, int state)
+{
+	struct gp2ap020a00f_data *data = iio_priv(indio_dev);
+	enum gp2ap020a00f_cmd cmd;
+	int err;
+
+	mutex_lock(&data->lock);
+
+	switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) {
+	case IIO_PROXIMITY:
+		err = gp2ap020a00f_write_prox_event_config(indio_dev,
+					event_code, state);
+		break;
+	case IIO_LIGHT:
+		if (IIO_EVENT_CODE_EXTRACT_DIR(event_code)
+					== IIO_EV_DIR_RISING) {
+			cmd = state ? GP2AP020A00F_CMD_ALS_HIGH_EV_EN :
+				      GP2AP020A00F_CMD_ALS_HIGH_EV_DIS;
+			err = gp2ap020a00f_exec_cmd(data, cmd);
+		} else {
+			cmd = state ? GP2AP020A00F_CMD_ALS_LOW_EV_EN :
+				      GP2AP020A00F_CMD_ALS_LOW_EV_DIS;
+			err = gp2ap020a00f_exec_cmd(data, cmd);
+		}
+		break;
+	default:
+		err = -EINVAL;
+	}
+
+	mutex_unlock(&data->lock);
+
+	return err;
+}
+
+static int gp2ap020a00f_read_event_config(struct iio_dev *indio_dev,
+					u64 event_code)
+{
+	struct gp2ap020a00f_data *data = iio_priv(indio_dev);
+	int event_en = 0;
+
+	mutex_lock(&data->lock);
+
+	switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) {
+	case IIO_PROXIMITY:
+		if (IIO_EVENT_CODE_EXTRACT_DIR(event_code)
+					== IIO_EV_DIR_RISING)
+			event_en = test_bit(GP2AP020A00F_FLAG_PROX_RISING_EV,
+								&data->flags);
+		else
+			event_en = test_bit(GP2AP020A00F_FLAG_PROX_FALLING_EV,
+								&data->flags);
+		break;
+	case IIO_LIGHT:
+		if (IIO_EVENT_CODE_EXTRACT_DIR(event_code)
+					== IIO_EV_DIR_RISING)
+			event_en = test_bit(GP2AP020A00F_FLAG_ALS_RISING_EV,
+								&data->flags);
+		else
+			event_en = test_bit(GP2AP020A00F_FLAG_ALS_FALLING_EV,
+								&data->flags);
+		break;
+	}
+
+	mutex_unlock(&data->lock);
+
+	return event_en;
+}
+
+static int gp2ap020a00f_read_channel(struct gp2ap020a00f_data *data,
+				struct iio_chan_spec const *chan, int *val)
+{
+	enum gp2ap020a00f_cmd cmd;
+	int err;
+
+	switch (chan->scan_index) {
+	case GP2AP020A00F_SCAN_MODE_LIGHT_CLEAR:
+		cmd = GP2AP020A00F_CMD_READ_RAW_CLEAR;
+		break;
+	case GP2AP020A00F_SCAN_MODE_LIGHT_IR:
+		cmd = GP2AP020A00F_CMD_READ_RAW_IR;
+		break;
+	case GP2AP020A00F_SCAN_MODE_PROXIMITY:
+		cmd = GP2AP020A00F_CMD_READ_RAW_PROXIMITY;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	err = gp2ap020a00f_exec_cmd(data, cmd);
+	if (err < 0) {
+		dev_err(&data->client->dev,
+			"gp2ap020a00f_exec_cmd failed\n");
+		goto error_ret;
+	}
+
+	err = gp2ap020a00f_read_output(data, chan->address, val);
+	if (err < 0)
+		dev_err(&data->client->dev,
+			"gp2ap020a00f_read_output failed\n");
+
+	err = gp2ap020a00f_set_operation_mode(data,
+					GP2AP020A00F_OPMODE_SHUTDOWN);
+	if (err < 0)
+		dev_err(&data->client->dev,
+			"Failed to shut down the device.\n");
+
+	if (cmd == GP2AP020A00F_CMD_READ_RAW_CLEAR ||
+	    cmd == GP2AP020A00F_CMD_READ_RAW_IR)
+		gp2ap020a00f_output_to_lux(data, val);
+
+error_ret:
+	return err;
+}
+
+static int gp2ap020a00f_read_raw(struct iio_dev *indio_dev,
+			   struct iio_chan_spec const *chan,
+			   int *val, int *val2,
+			   long mask)
+{
+	struct gp2ap020a00f_data *data = iio_priv(indio_dev);
+	int err = -EINVAL;
+
+	mutex_lock(&data->lock);
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		if (iio_buffer_enabled(indio_dev)) {
+			err = -EBUSY;
+			goto error_unlock;
+		}
+
+		err = gp2ap020a00f_read_channel(data, chan, val);
+		break;
+	}
+
+error_unlock:
+	mutex_unlock(&data->lock);
+
+	return err < 0 ? err : IIO_VAL_INT;
+}
+
+static const struct iio_chan_spec gp2ap020a00f_channels[] = {
+	{
+		.type = IIO_LIGHT,
+		.channel2 = IIO_MOD_LIGHT_CLEAR,
+		.modified = 1,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+		.scan_type = {
+			.sign = 'u',
+			.realbits = 24,
+			.shift = 0,
+			.storagebits = 32,
+			.endianness = IIO_LE,
+		},
+		.scan_index = GP2AP020A00F_SCAN_MODE_LIGHT_CLEAR,
+		.address = GP2AP020A00F_D0_L_REG,
+		.event_mask = IIO_EV_BIT(IIO_EV_TYPE_THRESH,
+					 IIO_EV_DIR_RISING) |
+			      IIO_EV_BIT(IIO_EV_TYPE_THRESH,
+					 IIO_EV_DIR_FALLING),
+	},
+	{
+		.type = IIO_LIGHT,
+		.channel2 = IIO_MOD_LIGHT_IR,
+		.modified = 1,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+		.scan_type = {
+			.sign = 'u',
+			.realbits = 24,
+			.shift = 0,
+			.storagebits = 32,
+			.endianness = IIO_LE,
+		},
+		.scan_index = GP2AP020A00F_SCAN_MODE_LIGHT_IR,
+		.address = GP2AP020A00F_D1_L_REG,
+	},
+	{
+		.type = IIO_PROXIMITY,
+		.modified = 0,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+		.scan_type = {
+			.sign = 'u',
+			.realbits = 16,
+			.shift = 0,
+			.storagebits = 16,
+			.endianness = IIO_LE,
+		},
+		.scan_index = GP2AP020A00F_SCAN_MODE_PROXIMITY,
+		.address = GP2AP020A00F_D2_L_REG,
+		.event_mask = IIO_EV_BIT(IIO_EV_TYPE_ROC,
+					 IIO_EV_DIR_RISING) |
+			      IIO_EV_BIT(IIO_EV_TYPE_ROC,
+					 IIO_EV_DIR_FALLING),
+	},
+	IIO_CHAN_SOFT_TIMESTAMP(GP2AP020A00F_CHAN_TIMESTAMP),
+};
+
+static const struct iio_info gp2ap020a00f_info = {
+	.read_raw = &gp2ap020a00f_read_raw,
+	.read_event_value = &gp2ap020a00f_read_event_val,
+	.read_event_config = &gp2ap020a00f_read_event_config,
+	.write_event_value = &gp2ap020a00f_write_event_val,
+	.write_event_config = &gp2ap020a00f_write_event_config,
+	.driver_module = THIS_MODULE,
+};
+
+static int gp2ap020a00f_buffer_postenable(struct iio_dev *indio_dev)
+{
+	struct gp2ap020a00f_data *data = iio_priv(indio_dev);
+	int i, err = 0;
+
+	mutex_lock(&data->lock);
+
+	/*
+	 * Enable triggers according to the scan_mask. Enabling either
+	 * LIGHT_CLEAR or LIGHT_IR scan mode results in enabling ALS
+	 * module in the device, which generates samples in both D0 (clear)
+	 * and D1 (ir) registers. As the two registers are bound to the
+	 * two separate IIO channels they are treated in the driver logic
+	 * as if they were controlled independently.
+	 */
+	for_each_set_bit(i, indio_dev->active_scan_mask,
+		indio_dev->masklength) {
+		switch (i) {
+		case GP2AP020A00F_SCAN_MODE_LIGHT_CLEAR:
+			err = gp2ap020a00f_exec_cmd(data,
+					GP2AP020A00F_CMD_TRIGGER_CLEAR_EN);
+			break;
+		case GP2AP020A00F_SCAN_MODE_LIGHT_IR:
+			err = gp2ap020a00f_exec_cmd(data,
+					GP2AP020A00F_CMD_TRIGGER_IR_EN);
+			break;
+		case GP2AP020A00F_SCAN_MODE_PROXIMITY:
+			err = gp2ap020a00f_exec_cmd(data,
+					GP2AP020A00F_CMD_TRIGGER_PROX_EN);
+			break;
+		}
+	}
+
+	if (err < 0)
+		goto error_unlock;
+
+	data->buffer = kmalloc(indio_dev->scan_bytes, GFP_KERNEL);
+	if (!data->buffer) {
+		err = -ENOMEM;
+		goto error_unlock;
+	}
+
+	err = iio_triggered_buffer_postenable(indio_dev);
+
+error_unlock:
+	mutex_unlock(&data->lock);
+
+	return err;
+}
+
+static int gp2ap020a00f_buffer_predisable(struct iio_dev *indio_dev)
+{
+	struct gp2ap020a00f_data *data = iio_priv(indio_dev);
+	int i, err;
+
+	mutex_lock(&data->lock);
+
+	err = iio_triggered_buffer_predisable(indio_dev);
+	if (err < 0)
+		goto error_unlock;
+
+	for_each_set_bit(i, indio_dev->active_scan_mask,
+		indio_dev->masklength) {
+		switch (i) {
+		case GP2AP020A00F_SCAN_MODE_LIGHT_CLEAR:
+			err = gp2ap020a00f_exec_cmd(data,
+					GP2AP020A00F_CMD_TRIGGER_CLEAR_DIS);
+			break;
+		case GP2AP020A00F_SCAN_MODE_LIGHT_IR:
+			err = gp2ap020a00f_exec_cmd(data,
+					GP2AP020A00F_CMD_TRIGGER_IR_DIS);
+			break;
+		case GP2AP020A00F_SCAN_MODE_PROXIMITY:
+			err = gp2ap020a00f_exec_cmd(data,
+					GP2AP020A00F_CMD_TRIGGER_PROX_DIS);
+			break;
+		}
+	}
+
+	if (err == 0)
+		kfree(data->buffer);
+
+error_unlock:
+	mutex_unlock(&data->lock);
+
+	return err;
+}
+
+static const struct iio_buffer_setup_ops gp2ap020a00f_buffer_setup_ops = {
+	.preenable = &iio_sw_buffer_preenable,
+	.postenable = &gp2ap020a00f_buffer_postenable,
+	.predisable = &gp2ap020a00f_buffer_predisable,
+};
+
+static const struct iio_trigger_ops gp2ap020a00f_trigger_ops = {
+	.owner = THIS_MODULE,
+};
+
+static int gp2ap020a00f_probe(struct i2c_client *client,
+				const struct i2c_device_id *id)
+{
+	struct gp2ap020a00f_data *data;
+	struct iio_dev *indio_dev;
+	struct regmap *regmap;
+	int err;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	data = iio_priv(indio_dev);
+
+	data->vled_reg = devm_regulator_get(&client->dev, "vled");
+	if (IS_ERR(data->vled_reg))
+		return PTR_ERR(data->vled_reg);
+
+	err = regulator_enable(data->vled_reg);
+	if (err)
+		return err;
+
+	regmap = devm_regmap_init_i2c(client, &gp2ap020a00f_regmap_config);
+	if (IS_ERR(regmap)) {
+		dev_err(&client->dev, "Regmap initialization failed.\n");
+		err = PTR_ERR(regmap);
+		goto error_regulator_disable;
+	}
+
+	/* Initialize device registers */
+	err = regmap_bulk_write(regmap, GP2AP020A00F_OP_REG,
+			gp2ap020a00f_reg_init_tab,
+			ARRAY_SIZE(gp2ap020a00f_reg_init_tab));
+
+	if (err < 0) {
+		dev_err(&client->dev, "Device initialization failed.\n");
+		goto error_regulator_disable;
+	}
+
+	i2c_set_clientdata(client, indio_dev);
+
+	data->client = client;
+	data->cur_opmode = GP2AP020A00F_OPMODE_SHUTDOWN;
+	data->regmap = regmap;
+	init_waitqueue_head(&data->data_ready_queue);
+
+	mutex_init(&data->lock);
+	indio_dev->dev.parent = &client->dev;
+	indio_dev->channels = gp2ap020a00f_channels;
+	indio_dev->num_channels = ARRAY_SIZE(gp2ap020a00f_channels);
+	indio_dev->info = &gp2ap020a00f_info;
+	indio_dev->name = id->name;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	/* Allocate buffer */
+	err = iio_triggered_buffer_setup(indio_dev, &iio_pollfunc_store_time,
+		&gp2ap020a00f_trigger_handler, &gp2ap020a00f_buffer_setup_ops);
+	if (err < 0)
+		goto error_regulator_disable;
+
+	/* Allocate trigger */
+	data->trig = devm_iio_trigger_alloc(&client->dev, "%s-trigger",
+							indio_dev->name);
+	if (data->trig == NULL) {
+		err = -ENOMEM;
+		dev_err(&indio_dev->dev, "Failed to allocate iio trigger.\n");
+		goto error_uninit_buffer;
+	}
+
+	/* This needs to be requested here for read_raw calls to work. */
+	err = request_threaded_irq(client->irq, NULL,
+				   &gp2ap020a00f_thresh_event_handler,
+				   IRQF_TRIGGER_FALLING |
+				   IRQF_ONESHOT,
+				   "gp2ap020a00f_als_event",
+				   indio_dev);
+	if (err < 0) {
+		dev_err(&client->dev, "Irq request failed.\n");
+		goto error_uninit_buffer;
+	}
+
+	data->trig->ops = &gp2ap020a00f_trigger_ops;
+	data->trig->dev.parent = &data->client->dev;
+
+	init_irq_work(&data->work, gp2ap020a00f_iio_trigger_work);
+
+	err = iio_trigger_register(data->trig);
+	if (err < 0) {
+		dev_err(&client->dev, "Failed to register iio trigger.\n");
+		goto error_free_irq;
+	}
+
+	err = iio_device_register(indio_dev);
+	if (err < 0)
+		goto error_trigger_unregister;
+
+	return 0;
+
+error_trigger_unregister:
+	iio_trigger_unregister(data->trig);
+error_free_irq:
+	free_irq(client->irq, indio_dev);
+error_uninit_buffer:
+	iio_triggered_buffer_cleanup(indio_dev);
+error_regulator_disable:
+	regulator_disable(data->vled_reg);
+
+	return err;
+}
+
+static int gp2ap020a00f_remove(struct i2c_client *client)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+	struct gp2ap020a00f_data *data = iio_priv(indio_dev);
+	int err;
+
+	err = gp2ap020a00f_set_operation_mode(data,
+					GP2AP020A00F_OPMODE_SHUTDOWN);
+	if (err < 0)
+		dev_err(&indio_dev->dev, "Failed to power off the device.\n");
+
+	iio_device_unregister(indio_dev);
+	iio_trigger_unregister(data->trig);
+	free_irq(client->irq, indio_dev);
+	iio_triggered_buffer_cleanup(indio_dev);
+	regulator_disable(data->vled_reg);
+
+	return 0;
+}
+
+static const struct i2c_device_id gp2ap020a00f_id[] = {
+	{ GP2A_I2C_NAME, 0 },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(i2c, gp2ap020a00f_id);
+
+#ifdef CONFIG_OF
+static const struct of_device_id gp2ap020a00f_of_match[] = {
+	{ .compatible = "sharp,gp2ap020a00f" },
+	{ }
+};
+#endif
+
+static struct i2c_driver gp2ap020a00f_driver = {
+	.driver = {
+		.name	= GP2A_I2C_NAME,
+		.of_match_table = of_match_ptr(gp2ap020a00f_of_match),
+		.owner	= THIS_MODULE,
+	},
+	.probe		= gp2ap020a00f_probe,
+	.remove		= gp2ap020a00f_remove,
+	.id_table	= gp2ap020a00f_id,
+};
+
+module_i2c_driver(gp2ap020a00f_driver);
+
+MODULE_AUTHOR("Jacek Anaszewski <j.anaszewski@samsung.com>");
+MODULE_DESCRIPTION("Sharp GP2AP020A00F Proximity/ALS sensor driver");
+MODULE_LICENSE("GPL v2");
-- 
cgit 


From a646fbf0fd11256c59ea6233eb243516086dbf15 Mon Sep 17 00:00:00 2001
From: Yann Droneaud <ydroneaud@opteya.com>
Date: Fri, 6 Sep 2013 11:39:00 +0100
Subject: iio: use anon_inode_getfd() with O_CLOEXEC flag

IIO uses anon_inode_get() to allocate file descriptors as part
of its ioctls. But those ioctls are lacking a flag argument
allowing userspace to choose options for the newly opened file
descriptor.

In such case it's advised to use O_CLOEXEC by default so that
userspace is allowed to choose, without race, if the file descriptor
is going to be inherited across exec().

KVM usage of anon_inode_getfd() was fixed in a previous patchset [1],
so IIO is the only subsystem using anon_inode_getfd() with a fixed set
of flags not including O_CLOEXEC.

This patch set O_CLOEXEC flag on the event file descriptor created
with anon_inode_getfd() to not leak file descriptors across exec().

Links:

- Secure File Descriptor Handling (Ulrich Drepper, 2008)
  http://udrepper.livejournal.com/20407.html

- Excuse me son, but your code is leaking !!! (Dan Walsh, March 2012)
  http://danwalsh.livejournal.com/53603.html

- [1] kvm: use anon_inode_getfd() with O_CLOEXEC flag
  http://lkml.kernel.org/r/cover.1377372576.git.ydroneaud@opteya.com

Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/industrialio-event.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index 10aa9ef86cec..2390e3d08e48 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -159,7 +159,7 @@ int iio_event_getfd(struct iio_dev *indio_dev)
 	}
 	spin_unlock_irq(&ev_int->wait.lock);
 	fd = anon_inode_getfd("iio:event",
-				&iio_event_chrdev_fileops, ev_int, O_RDONLY);
+				&iio_event_chrdev_fileops, ev_int, O_RDONLY | O_CLOEXEC);
 	if (fd < 0) {
 		spin_lock_irq(&ev_int->wait.lock);
 		__clear_bit(IIO_BUSY_BIT_POS, &ev_int->flags);
-- 
cgit 


From 705ee2c98a37130fd0aa914dc55b74a9174a6ff0 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 15 Sep 2013 16:31:00 +0100
Subject: iio:buffer: Simplify iio_buffer_is_active()

We can skip having to loop through all the device's buffers to see if a certain
buffer is active, if we let the buffer's list head point to itself when the
buffer is inactive.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/industrialio-buffer.c | 31 +++++++++++--------------------
 1 file changed, 11 insertions(+), 20 deletions(-)

diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index e73033f3839a..96e97ad2538c 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -31,16 +31,9 @@ static const char * const iio_endian_prefix[] = {
 	[IIO_LE] = "le",
 };
 
-static bool iio_buffer_is_active(struct iio_dev *indio_dev,
-				 struct iio_buffer *buf)
+static bool iio_buffer_is_active(struct iio_buffer *buf)
 {
-	struct list_head *p;
-
-	list_for_each(p, &indio_dev->buffer_list)
-		if (p == &buf->buffer_list)
-			return true;
-
-	return false;
+	return !list_empty(&buf->buffer_list);
 }
 
 /**
@@ -79,6 +72,7 @@ unsigned int iio_buffer_poll(struct file *filp,
 void iio_buffer_init(struct iio_buffer *buffer)
 {
 	INIT_LIST_HEAD(&buffer->demux_list);
+	INIT_LIST_HEAD(&buffer->buffer_list);
 	init_waitqueue_head(&buffer->pollq);
 }
 EXPORT_SYMBOL(iio_buffer_init);
@@ -146,7 +140,7 @@ static ssize_t iio_scan_el_store(struct device *dev,
 	if (ret < 0)
 		return ret;
 	mutex_lock(&indio_dev->mlock);
-	if (iio_buffer_is_active(indio_dev, indio_dev->buffer)) {
+	if (iio_buffer_is_active(indio_dev->buffer)) {
 		ret = -EBUSY;
 		goto error_ret;
 	}
@@ -192,7 +186,7 @@ static ssize_t iio_scan_el_ts_store(struct device *dev,
 		return ret;
 
 	mutex_lock(&indio_dev->mlock);
-	if (iio_buffer_is_active(indio_dev, indio_dev->buffer)) {
+	if (iio_buffer_is_active(indio_dev->buffer)) {
 		ret = -EBUSY;
 		goto error_ret;
 	}
@@ -396,7 +390,7 @@ ssize_t iio_buffer_write_length(struct device *dev,
 			return len;
 
 	mutex_lock(&indio_dev->mlock);
-	if (iio_buffer_is_active(indio_dev, indio_dev->buffer)) {
+	if (iio_buffer_is_active(indio_dev->buffer)) {
 		ret = -EBUSY;
 	} else {
 		if (buffer->access->set_length)
@@ -414,9 +408,7 @@ ssize_t iio_buffer_show_enable(struct device *dev,
 			       char *buf)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	return sprintf(buf, "%d\n",
-		       iio_buffer_is_active(indio_dev,
-					    indio_dev->buffer));
+	return sprintf(buf, "%d\n", iio_buffer_is_active(indio_dev->buffer));
 }
 EXPORT_SYMBOL(iio_buffer_show_enable);
 
@@ -490,7 +482,7 @@ int iio_update_buffers(struct iio_dev *indio_dev,
 		indio_dev->active_scan_mask = NULL;
 
 	if (remove_buffer)
-		list_del(&remove_buffer->buffer_list);
+		list_del_init(&remove_buffer->buffer_list);
 	if (insert_buffer)
 		list_add(&insert_buffer->buffer_list, &indio_dev->buffer_list);
 
@@ -527,7 +519,7 @@ int iio_update_buffers(struct iio_dev *indio_dev,
 			 * Roll back.
 			 * Note can only occur when adding a buffer.
 			 */
-			list_del(&insert_buffer->buffer_list);
+			list_del_init(&insert_buffer->buffer_list);
 			indio_dev->active_scan_mask = old_mask;
 			success = -EINVAL;
 		}
@@ -611,7 +603,7 @@ error_run_postdisable:
 error_remove_inserted:
 
 	if (insert_buffer)
-		list_del(&insert_buffer->buffer_list);
+		list_del_init(&insert_buffer->buffer_list);
 	indio_dev->active_scan_mask = old_mask;
 	kfree(compound_mask);
 error_ret:
@@ -628,7 +620,6 @@ ssize_t iio_buffer_store_enable(struct device *dev,
 	int ret;
 	bool requested_state;
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct iio_buffer *pbuf = indio_dev->buffer;
 	bool inlist;
 
 	ret = strtobool(buf, &requested_state);
@@ -638,7 +629,7 @@ ssize_t iio_buffer_store_enable(struct device *dev,
 	mutex_lock(&indio_dev->mlock);
 
 	/* Find out if it is in the list */
-	inlist = iio_buffer_is_active(indio_dev, pbuf);
+	inlist = iio_buffer_is_active(indio_dev->buffer);
 	/* Already in desired state */
 	if (inlist == requested_state)
 		goto done;
-- 
cgit 


From 623c334c1a40ae84a19ab8ef77924e9f0f2d4bcd Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 15 Sep 2013 16:31:00 +0100
Subject: iio:kfifo_buf: Use wake_up_interruptible_poll()

Use wake_up_interruptible_poll() instead of wake_up_interruptible() to only wake
up those threads that listen for input poll notifications.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/kfifo_buf.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/kfifo_buf.c b/drivers/iio/kfifo_buf.c
index a923c78d5cb4..1bea41bcbdc6 100644
--- a/drivers/iio/kfifo_buf.c
+++ b/drivers/iio/kfifo_buf.c
@@ -7,6 +7,7 @@
 #include <linux/mutex.h>
 #include <linux/iio/kfifo_buf.h>
 #include <linux/sched.h>
+#include <linux/poll.h>
 
 struct iio_kfifo {
 	struct iio_buffer buffer;
@@ -102,7 +103,7 @@ static int iio_store_to_kfifo(struct iio_buffer *r,
 	if (ret != 1)
 		return -EBUSY;
 	r->stufftoread = true;
-	wake_up_interruptible(&r->pollq);
+	wake_up_interruptible_poll(&r->pollq, POLLIN | POLLRDNORM);
 
 	return 0;
 }
-- 
cgit 


From 9761696f2be276b169b77bcf359bc50a251c9280 Mon Sep 17 00:00:00 2001
From: Jonathan Cameron <jic23@kernel.org>
Date: Sun, 8 Sep 2013 14:57:00 +0100
Subject: iio: drop info_mask from struct iio_dev

Somehow this got missed when dropping all the code that used it
prior to the split.  Remove it now, there are no users.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
---
 include/linux/iio/iio.h | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index 01edd6795550..bc408e2def40 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -147,12 +147,10 @@ ssize_t iio_enum_write(struct iio_dev *indio_dev,
  *			shift:		Shift right by this before masking out
  *					realbits.
  *			endianness:	little or big endian
- * @info_mask:		What information is to be exported about this channel.
- *			This includes calibbias, scale etc.
  * @info_mask_separate: What information is to be exported that is specific to
  *			this channel.
  * @info_mask_shared_by_type: What information is to be exported that is shared
-*			by all channels of the same type.
+ *			by all channels of the same type.
  * @event_mask:		What events can this channel produce.
  * @ext_info:		Array of extended info attributes for this channel.
  *			The array is NULL terminated, the last element should
@@ -187,7 +185,6 @@ struct iio_chan_spec {
 		u8	shift;
 		enum iio_endian endianness;
 	} scan_type;
-	long			info_mask;
 	long			info_mask_separate;
 	long			info_mask_shared_by_type;
 	long			event_mask;
-- 
cgit 


From 3704432fb1fd8ab2df114bad6df752381246b609 Mon Sep 17 00:00:00 2001
From: Jonathan Cameron <jic23@kernel.org>
Date: Sun, 8 Sep 2013 14:57:00 +0100
Subject: iio: refactor info mask and ext_info attribute creation.

Introduce an enum to specify whether the attribute is separate or
shared.

Factor out the bitmap handling for loop into a separate function.

Tidy up error handling and add a NULL assignment to squish a false
positive warning from GCC.

Change ext_info shared type from boolean to enum and update in all
drivers.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
---
 drivers/iio/dac/ad5064.c          |   3 +-
 drivers/iio/dac/ad5380.c          |   4 +-
 drivers/iio/dac/ad5446.c          |   3 +-
 drivers/iio/dac/ad5504.c          |   4 +-
 drivers/iio/dac/ad5624r_spi.c     |   4 +-
 drivers/iio/dac/ad5686.c          |   3 +-
 drivers/iio/dac/ad5755.c          |   1 +
 drivers/iio/dac/ad5791.c          |   5 +-
 drivers/iio/dac/ad7303.c          |   1 +
 drivers/iio/dac/mcp4725.c         |   3 +-
 drivers/iio/frequency/adf4350.c   |   1 +
 drivers/iio/iio_core.h            |   2 +-
 drivers/iio/industrialio-buffer.c |   2 +-
 drivers/iio/industrialio-core.c   | 149 ++++++++++++++++++++------------------
 include/linux/iio/iio.h           |   9 ++-
 15 files changed, 112 insertions(+), 82 deletions(-)

diff --git a/drivers/iio/dac/ad5064.c b/drivers/iio/dac/ad5064.c
index a3a52be4852c..b18e8c4347c2 100644
--- a/drivers/iio/dac/ad5064.c
+++ b/drivers/iio/dac/ad5064.c
@@ -285,8 +285,9 @@ static const struct iio_chan_spec_ext_info ad5064_ext_info[] = {
 		.name = "powerdown",
 		.read = ad5064_read_dac_powerdown,
 		.write = ad5064_write_dac_powerdown,
+		.shared = IIO_SEPARATE,
 	},
-	IIO_ENUM("powerdown_mode", false, &ad5064_powerdown_mode_enum),
+	IIO_ENUM("powerdown_mode", IIO_SEPARATE, &ad5064_powerdown_mode_enum),
 	IIO_ENUM_AVAILABLE("powerdown_mode", &ad5064_powerdown_mode_enum),
 	{ },
 };
diff --git a/drivers/iio/dac/ad5380.c b/drivers/iio/dac/ad5380.c
index 1c44ae3920e2..4c791e66e0d7 100644
--- a/drivers/iio/dac/ad5380.c
+++ b/drivers/iio/dac/ad5380.c
@@ -247,8 +247,10 @@ static struct iio_chan_spec_ext_info ad5380_ext_info[] = {
 		.name = "powerdown",
 		.read = ad5380_read_dac_powerdown,
 		.write = ad5380_write_dac_powerdown,
+		.shared = IIO_SEPARATE,
 	},
-	IIO_ENUM("powerdown_mode", true, &ad5380_powerdown_mode_enum),
+	IIO_ENUM("powerdown_mode", IIO_SHARED_BY_TYPE,
+		 &ad5380_powerdown_mode_enum),
 	IIO_ENUM_AVAILABLE("powerdown_mode", &ad5380_powerdown_mode_enum),
 	{ },
 };
diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c
index 96e9ed4c2d01..6dcb6d93f0e4 100644
--- a/drivers/iio/dac/ad5446.c
+++ b/drivers/iio/dac/ad5446.c
@@ -132,8 +132,9 @@ static const struct iio_chan_spec_ext_info ad5446_ext_info_powerdown[] = {
 		.name = "powerdown",
 		.read = ad5446_read_dac_powerdown,
 		.write = ad5446_write_dac_powerdown,
+		.shared = IIO_SEPARATE,
 	},
-	IIO_ENUM("powerdown_mode", false, &ad5446_powerdown_mode_enum),
+	IIO_ENUM("powerdown_mode", IIO_SEPARATE, &ad5446_powerdown_mode_enum),
 	IIO_ENUM_AVAILABLE("powerdown_mode", &ad5446_powerdown_mode_enum),
 	{ },
 };
diff --git a/drivers/iio/dac/ad5504.c b/drivers/iio/dac/ad5504.c
index caffb16bc05c..31f4ff29f914 100644
--- a/drivers/iio/dac/ad5504.c
+++ b/drivers/iio/dac/ad5504.c
@@ -248,8 +248,10 @@ static const struct iio_chan_spec_ext_info ad5504_ext_info[] = {
 		.name = "powerdown",
 		.read = ad5504_read_dac_powerdown,
 		.write = ad5504_write_dac_powerdown,
+		.shared = IIO_SEPARATE,
 	},
-	IIO_ENUM("powerdown_mode", true, &ad5504_powerdown_mode_enum),
+	IIO_ENUM("powerdown_mode", IIO_SHARED_BY_TYPE,
+		 &ad5504_powerdown_mode_enum),
 	IIO_ENUM_AVAILABLE("powerdown_mode", &ad5504_powerdown_mode_enum),
 	{ },
 };
diff --git a/drivers/iio/dac/ad5624r_spi.c b/drivers/iio/dac/ad5624r_spi.c
index 714af757cd56..dbb1289cc7a6 100644
--- a/drivers/iio/dac/ad5624r_spi.c
+++ b/drivers/iio/dac/ad5624r_spi.c
@@ -163,8 +163,10 @@ static const struct iio_chan_spec_ext_info ad5624r_ext_info[] = {
 		.name = "powerdown",
 		.read = ad5624r_read_dac_powerdown,
 		.write = ad5624r_write_dac_powerdown,
+		.shared = IIO_SEPARATE,
 	},
-	IIO_ENUM("powerdown_mode", true, &ad5624r_powerdown_mode_enum),
+	IIO_ENUM("powerdown_mode", IIO_SHARED_BY_TYPE,
+		 &ad5624r_powerdown_mode_enum),
 	IIO_ENUM_AVAILABLE("powerdown_mode", &ad5624r_powerdown_mode_enum),
 	{ },
 };
diff --git a/drivers/iio/dac/ad5686.c b/drivers/iio/dac/ad5686.c
index 3e1080feedbf..f472b48445f6 100644
--- a/drivers/iio/dac/ad5686.c
+++ b/drivers/iio/dac/ad5686.c
@@ -264,8 +264,9 @@ static const struct iio_chan_spec_ext_info ad5686_ext_info[] = {
 		.name = "powerdown",
 		.read = ad5686_read_dac_powerdown,
 		.write = ad5686_write_dac_powerdown,
+		.shared = IIO_SEPARATE,
 	},
-	IIO_ENUM("powerdown_mode", false, &ad5686_powerdown_mode_enum),
+	IIO_ENUM("powerdown_mode", IIO_SEPARATE, &ad5686_powerdown_mode_enum),
 	IIO_ENUM_AVAILABLE("powerdown_mode", &ad5686_powerdown_mode_enum),
 	{ },
 };
diff --git a/drivers/iio/dac/ad5755.c b/drivers/iio/dac/ad5755.c
index 36a4361aece1..f305a0c83418 100644
--- a/drivers/iio/dac/ad5755.c
+++ b/drivers/iio/dac/ad5755.c
@@ -386,6 +386,7 @@ static const struct iio_chan_spec_ext_info ad5755_ext_info[] = {
 		.name = "powerdown",
 		.read = ad5755_read_powerdown,
 		.write = ad5755_write_powerdown,
+		.shared = IIO_SEPARATE,
 	},
 	{ },
 };
diff --git a/drivers/iio/dac/ad5791.c b/drivers/iio/dac/ad5791.c
index ce7458963309..3cee89be68c3 100644
--- a/drivers/iio/dac/ad5791.c
+++ b/drivers/iio/dac/ad5791.c
@@ -287,11 +287,12 @@ static int ad5791_read_raw(struct iio_dev *indio_dev,
 static const struct iio_chan_spec_ext_info ad5791_ext_info[] = {
 	{
 		.name = "powerdown",
-		.shared = true,
+		.shared = IIO_SHARED_BY_TYPE,
 		.read = ad5791_read_dac_powerdown,
 		.write = ad5791_write_dac_powerdown,
 	},
-	IIO_ENUM("powerdown_mode", true, &ad5791_powerdown_mode_enum),
+	IIO_ENUM("powerdown_mode", IIO_SHARED_BY_TYPE,
+		 &ad5791_powerdown_mode_enum),
 	IIO_ENUM_AVAILABLE("powerdown_mode", &ad5791_powerdown_mode_enum),
 	{ },
 };
diff --git a/drivers/iio/dac/ad7303.c b/drivers/iio/dac/ad7303.c
index ed2d276477bd..d0505fd22ef4 100644
--- a/drivers/iio/dac/ad7303.c
+++ b/drivers/iio/dac/ad7303.c
@@ -169,6 +169,7 @@ static const struct iio_chan_spec_ext_info ad7303_ext_info[] = {
 		.name = "powerdown",
 		.read = ad7303_read_dac_powerdown,
 		.write = ad7303_write_dac_powerdown,
+		.shared = IIO_SEPARATE,
 	},
 	{ },
 };
diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c
index 1f4a48e6a82c..6711a33b16ba 100644
--- a/drivers/iio/dac/mcp4725.c
+++ b/drivers/iio/dac/mcp4725.c
@@ -195,8 +195,9 @@ static const struct iio_chan_spec_ext_info mcp4725_ext_info[] = {
 		.name = "powerdown",
 		.read = mcp4725_read_powerdown,
 		.write = mcp4725_write_powerdown,
+		.shared = IIO_SEPARATE,
 	},
-	IIO_ENUM("powerdown_mode", false, &mcp4725_powerdown_mode_enum),
+	IIO_ENUM("powerdown_mode", IIO_SEPARATE, &mcp4725_powerdown_mode_enum),
 	IIO_ENUM_AVAILABLE("powerdown_mode", &mcp4725_powerdown_mode_enum),
 	{ },
 };
diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c
index a7b30be86ae0..85152547aa8b 100644
--- a/drivers/iio/frequency/adf4350.c
+++ b/drivers/iio/frequency/adf4350.c
@@ -351,6 +351,7 @@ static ssize_t adf4350_read(struct iio_dev *indio_dev,
 	.read = adf4350_read, \
 	.write = adf4350_write, \
 	.private = _ident, \
+	.shared = IIO_SEPARATE, \
 }
 
 static const struct iio_chan_spec_ext_info adf4350_ext_info[] = {
diff --git a/drivers/iio/iio_core.h b/drivers/iio/iio_core.h
index 05c1b74502a3..6be5ab864b1a 100644
--- a/drivers/iio/iio_core.h
+++ b/drivers/iio/iio_core.h
@@ -30,7 +30,7 @@ int __iio_add_chan_devattr(const char *postfix,
 						const char *buf,
 						size_t len),
 			   u64 mask,
-			   bool generic,
+			   enum iio_shared_by shared_by,
 			   struct device *dev,
 			   struct list_head *attr_list);
 
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 96e97ad2538c..7ea2edbf7614 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -208,7 +208,7 @@ static int iio_buffer_add_channel_sysfs(struct iio_dev *indio_dev,
 				     &iio_show_scan_index,
 				     NULL,
 				     0,
-				     0,
+				     IIO_SEPARATE,
 				     &indio_dev->dev,
 				     &buffer->scan_el_dev_attr_list);
 	if (ret)
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 2cb4841d5357..d380c7278a26 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -517,14 +517,15 @@ int __iio_device_attr_init(struct device_attribute *dev_attr,
 						struct device_attribute *attr,
 						const char *buf,
 						size_t len),
-			   bool generic)
+			   enum iio_shared_by shared_by)
 {
-	int ret;
-	char *name_format, *full_postfix;
+	int ret = 0;
+	char *name_format = NULL;
+	char *full_postfix;
 	sysfs_attr_init(&dev_attr->attr);
 
 	/* Build up postfix of <extend_name>_<modifier>_postfix */
-	if (chan->modified && !generic) {
+	if (chan->modified && (shared_by == IIO_SEPARATE)) {
 		if (chan->extend_name)
 			full_postfix = kasprintf(GFP_KERNEL, "%s_%s_%s",
 						 iio_modifier_names[chan
@@ -545,53 +546,62 @@ int __iio_device_attr_init(struct device_attribute *dev_attr,
 						 chan->extend_name,
 						 postfix);
 	}
-	if (full_postfix == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
+	if (full_postfix == NULL)
+		return -ENOMEM;
 
 	if (chan->differential) { /* Differential can not have modifier */
-		if (generic)
+		switch (shared_by) {
+		case IIO_SHARED_BY_TYPE:
 			name_format
 				= kasprintf(GFP_KERNEL, "%s_%s-%s_%s",
 					    iio_direction[chan->output],
 					    iio_chan_type_name_spec[chan->type],
 					    iio_chan_type_name_spec[chan->type],
 					    full_postfix);
-		else if (chan->indexed)
+			break;
+		case IIO_SEPARATE:
+			if (!chan->indexed) {
+				WARN_ON("Differential channels must be indexed\n");
+				ret = -EINVAL;
+				goto error_free_full_postfix;
+			}
 			name_format
-				= kasprintf(GFP_KERNEL, "%s_%s%d-%s%d_%s",
+				= kasprintf(GFP_KERNEL,
+					    "%s_%s%d-%s%d_%s",
 					    iio_direction[chan->output],
 					    iio_chan_type_name_spec[chan->type],
 					    chan->channel,
 					    iio_chan_type_name_spec[chan->type],
 					    chan->channel2,
 					    full_postfix);
-		else {
-			WARN_ON("Differential channels must be indexed\n");
-			ret = -EINVAL;
-			goto error_free_full_postfix;
+			break;
 		}
 	} else { /* Single ended */
-		if (generic)
-			name_format
-				= kasprintf(GFP_KERNEL, "%s_%s_%s",
-					    iio_direction[chan->output],
-					    iio_chan_type_name_spec[chan->type],
-					    full_postfix);
-		else if (chan->indexed)
-			name_format
-				= kasprintf(GFP_KERNEL, "%s_%s%d_%s",
-					    iio_direction[chan->output],
-					    iio_chan_type_name_spec[chan->type],
-					    chan->channel,
-					    full_postfix);
-		else
+		switch (shared_by) {
+		case IIO_SHARED_BY_TYPE:
 			name_format
 				= kasprintf(GFP_KERNEL, "%s_%s_%s",
 					    iio_direction[chan->output],
 					    iio_chan_type_name_spec[chan->type],
 					    full_postfix);
+			break;
+
+		case IIO_SEPARATE:
+			if (chan->indexed)
+				name_format
+					= kasprintf(GFP_KERNEL, "%s_%s%d_%s",
+						    iio_direction[chan->output],
+						    iio_chan_type_name_spec[chan->type],
+						    chan->channel,
+						    full_postfix);
+			else
+				name_format
+					= kasprintf(GFP_KERNEL, "%s_%s_%s",
+						    iio_direction[chan->output],
+						    iio_chan_type_name_spec[chan->type],
+						    full_postfix);
+			break;
+		}
 	}
 	if (name_format == NULL) {
 		ret = -ENOMEM;
@@ -615,16 +625,11 @@ int __iio_device_attr_init(struct device_attribute *dev_attr,
 		dev_attr->attr.mode |= S_IWUSR;
 		dev_attr->store = writefunc;
 	}
-	kfree(name_format);
-	kfree(full_postfix);
-
-	return 0;
-
 error_free_name_format:
 	kfree(name_format);
 error_free_full_postfix:
 	kfree(full_postfix);
-error_ret:
+
 	return ret;
 }
 
@@ -643,7 +648,7 @@ int __iio_add_chan_devattr(const char *postfix,
 						const char *buf,
 						size_t len),
 			   u64 mask,
-			   bool generic,
+			   enum iio_shared_by shared_by,
 			   struct device *dev,
 			   struct list_head *attr_list)
 {
@@ -657,7 +662,7 @@ int __iio_add_chan_devattr(const char *postfix,
 	}
 	ret = __iio_device_attr_init(&iio_attr->dev_attr,
 				     postfix, chan,
-				     readfunc, writefunc, generic);
+				     readfunc, writefunc, shared_by);
 	if (ret)
 		goto error_iio_dev_attr_free;
 	iio_attr->c = chan;
@@ -665,7 +670,7 @@ int __iio_add_chan_devattr(const char *postfix,
 	list_for_each_entry(t, attr_list, l)
 		if (strcmp(t->dev_attr.attr.name,
 			   iio_attr->dev_attr.attr.name) == 0) {
-			if (!generic)
+			if (shared_by == IIO_SEPARATE)
 				dev_err(dev, "tried to double register : %s\n",
 					t->dev_attr.attr.name);
 			ret = -EBUSY;
@@ -683,46 +688,54 @@ error_ret:
 	return ret;
 }
 
-static int iio_device_add_channel_sysfs(struct iio_dev *indio_dev,
-					struct iio_chan_spec const *chan)
+static int iio_device_add_info_mask_type(struct iio_dev *indio_dev,
+					 struct iio_chan_spec const *chan,
+					 enum iio_shared_by shared_by,
+					 const long *infomask)
 {
-	int ret, attrcount = 0;
-	int i;
-	const struct iio_chan_spec_ext_info *ext_info;
+	int i, ret, attrcount = 0;
 
-	if (chan->channel < 0)
-		return 0;
-	for_each_set_bit(i, &chan->info_mask_separate, sizeof(long)*8) {
+	for_each_set_bit(i, infomask, sizeof(infomask)*8) {
 		ret = __iio_add_chan_devattr(iio_chan_info_postfix[i],
 					     chan,
 					     &iio_read_channel_info,
 					     &iio_write_channel_info,
 					     i,
-					     0,
+					     shared_by,
 					     &indio_dev->dev,
 					     &indio_dev->channel_attr_list);
-		if (ret < 0)
-			goto error_ret;
-		attrcount++;
-	}
-	for_each_set_bit(i, &chan->info_mask_shared_by_type, sizeof(long)*8) {
-		ret = __iio_add_chan_devattr(iio_chan_info_postfix[i],
-					     chan,
-					     &iio_read_channel_info,
-					     &iio_write_channel_info,
-					     i,
-					     1,
-					     &indio_dev->dev,
-					     &indio_dev->channel_attr_list);
-		if (ret == -EBUSY) {
-			ret = 0;
+		if ((ret == -EBUSY) && (shared_by != IIO_SEPARATE))
 			continue;
-		} else if (ret < 0) {
-			goto error_ret;
-		}
+		else if (ret < 0)
+			return ret;
 		attrcount++;
 	}
 
+	return attrcount;
+}
+
+static int iio_device_add_channel_sysfs(struct iio_dev *indio_dev,
+					struct iio_chan_spec const *chan)
+{
+	int ret, attrcount = 0;
+	const struct iio_chan_spec_ext_info *ext_info;
+
+	if (chan->channel < 0)
+		return 0;
+	ret = iio_device_add_info_mask_type(indio_dev, chan,
+					    IIO_SEPARATE,
+					    &chan->info_mask_separate);
+	if (ret < 0)
+		return ret;
+	attrcount += ret;
+
+	ret = iio_device_add_info_mask_type(indio_dev, chan,
+					    IIO_SHARED_BY_TYPE,
+					    &chan->info_mask_shared_by_type);
+	if (ret < 0)
+		return ret;
+	attrcount += ret;
+
 	if (chan->ext_info) {
 		unsigned int i = 0;
 		for (ext_info = chan->ext_info; ext_info->name; ext_info++) {
@@ -741,15 +754,13 @@ static int iio_device_add_channel_sysfs(struct iio_dev *indio_dev,
 				continue;
 
 			if (ret)
-				goto error_ret;
+				return ret;
 
 			attrcount++;
 		}
 	}
 
-	ret = attrcount;
-error_ret:
-	return ret;
+	return attrcount;
 }
 
 static void iio_device_remove_and_free_read_attr(struct iio_dev *indio_dev,
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index bc408e2def40..21de272f1eb6 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -39,6 +39,11 @@ enum iio_chan_info_enum {
 	IIO_CHAN_INFO_INT_TIME,
 };
 
+enum iio_shared_by {
+	IIO_SEPARATE,
+	IIO_SHARED_BY_TYPE
+};
+
 enum iio_endian {
 	IIO_CPU,
 	IIO_BE,
@@ -58,7 +63,7 @@ struct iio_dev;
  */
 struct iio_chan_spec_ext_info {
 	const char *name;
-	bool shared;
+	enum iio_shared_by shared;
 	ssize_t (*read)(struct iio_dev *, uintptr_t private,
 			struct iio_chan_spec const *, char *buf);
 	ssize_t (*write)(struct iio_dev *, uintptr_t private,
@@ -126,7 +131,7 @@ ssize_t iio_enum_write(struct iio_dev *indio_dev,
 #define IIO_ENUM_AVAILABLE(_name, _e) \
 { \
 	.name = (_name "_available"), \
-	.shared = true, \
+	.shared = IIO_SHARED_BY_TYPE, \
 	.read = iio_enum_available_read, \
 	.private = (uintptr_t)(_e), \
 }
-- 
cgit 


From c006ec838414d910bdd63ba8d919e602425e194e Mon Sep 17 00:00:00 2001
From: Jonathan Cameron <jic23@kernel.org>
Date: Sun, 8 Sep 2013 14:57:00 +0100
Subject: iio: add info_mask_[shared_by_dir/shared_by_all]

These two additional info_mask bitmaps should allow all 'standard'
numeric attributes to be handled using the read_raw and write_raw
callbacks.  Whilst this should reduce code, the more important element
is that this makes these values easily accessible to in kernel users
of IIO devices.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
---
 drivers/iio/industrialio-core.c | 30 ++++++++++++++++++++++++++++++
 include/linux/iio/iio.h         | 14 ++++++++++++--
 2 files changed, 42 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index d380c7278a26..24db1855dbab 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -551,6 +551,14 @@ int __iio_device_attr_init(struct device_attribute *dev_attr,
 
 	if (chan->differential) { /* Differential can not have modifier */
 		switch (shared_by) {
+		case IIO_SHARED_BY_ALL:
+			name_format = kasprintf(GFP_KERNEL, "%s", full_postfix);
+			break;
+		case IIO_SHARED_BY_DIR:
+			name_format = kasprintf(GFP_KERNEL, "%s_%s",
+						iio_direction[chan->output],
+						full_postfix);
+			break;
 		case IIO_SHARED_BY_TYPE:
 			name_format
 				= kasprintf(GFP_KERNEL, "%s_%s-%s_%s",
@@ -578,6 +586,14 @@ int __iio_device_attr_init(struct device_attribute *dev_attr,
 		}
 	} else { /* Single ended */
 		switch (shared_by) {
+		case IIO_SHARED_BY_ALL:
+			name_format = kasprintf(GFP_KERNEL, "%s", full_postfix);
+			break;
+		case IIO_SHARED_BY_DIR:
+			name_format = kasprintf(GFP_KERNEL, "%s_%s",
+						iio_direction[chan->output],
+						full_postfix);
+			break;
 		case IIO_SHARED_BY_TYPE:
 			name_format
 				= kasprintf(GFP_KERNEL, "%s_%s_%s",
@@ -736,6 +752,20 @@ static int iio_device_add_channel_sysfs(struct iio_dev *indio_dev,
 		return ret;
 	attrcount += ret;
 
+	ret = iio_device_add_info_mask_type(indio_dev, chan,
+					    IIO_SHARED_BY_DIR,
+					    &chan->info_mask_shared_by_dir);
+	if (ret < 0)
+		return ret;
+	attrcount += ret;
+
+	ret = iio_device_add_info_mask_type(indio_dev, chan,
+					    IIO_SHARED_BY_ALL,
+					    &chan->info_mask_shared_by_all);
+	if (ret < 0)
+		return ret;
+	attrcount += ret;
+
 	if (chan->ext_info) {
 		unsigned int i = 0;
 		for (ext_info = chan->ext_info; ext_info->name; ext_info++) {
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index 21de272f1eb6..ac1cb8f1858c 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -41,7 +41,9 @@ enum iio_chan_info_enum {
 
 enum iio_shared_by {
 	IIO_SEPARATE,
-	IIO_SHARED_BY_TYPE
+	IIO_SHARED_BY_TYPE,
+	IIO_SHARED_BY_DIR,
+	IIO_SHARED_BY_ALL
 };
 
 enum iio_endian {
@@ -156,6 +158,10 @@ ssize_t iio_enum_write(struct iio_dev *indio_dev,
  *			this channel.
  * @info_mask_shared_by_type: What information is to be exported that is shared
  *			by all channels of the same type.
+ * @info_mask_shared_by_dir: What information is to be exported that is shared
+ *			by all channels of the same direction.
+ * @info_mask_shared_by_all: What information is to be exported that is shared
+ *			by all channels.
  * @event_mask:		What events can this channel produce.
  * @ext_info:		Array of extended info attributes for this channel.
  *			The array is NULL terminated, the last element should
@@ -192,6 +198,8 @@ struct iio_chan_spec {
 	} scan_type;
 	long			info_mask_separate;
 	long			info_mask_shared_by_type;
+	long			info_mask_shared_by_dir;
+	long			info_mask_shared_by_all;
 	long			event_mask;
 	const struct iio_chan_spec_ext_info *ext_info;
 	const char		*extend_name;
@@ -215,7 +223,9 @@ static inline bool iio_channel_has_info(const struct iio_chan_spec *chan,
 	enum iio_chan_info_enum type)
 {
 	return (chan->info_mask_separate & BIT(type)) |
-	       (chan->info_mask_shared_by_type & BIT(type));
+		(chan->info_mask_shared_by_type & BIT(type)) |
+		(chan->info_mask_shared_by_dir & BIT(type)) |
+		(chan->info_mask_shared_by_all & BIT(type));
 }
 
 #define IIO_ST(si, rb, sb, sh)						\
-- 
cgit 


From 6a63aa0a09414256c89b48fc012b189756da690e Mon Sep 17 00:00:00 2001
From: Jonathan Cameron <jic23@kernel.org>
Date: Sun, 8 Sep 2013 14:57:00 +0100
Subject: staging:iio: dummy driver additions to show shared_by_dir infomask
 usage

Note that as this driver has output as well as output channels an
example of info_mask_shared_by_all that makes any sense does not exist.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
---
 drivers/staging/iio/iio_simple_dummy.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/staging/iio/iio_simple_dummy.c b/drivers/staging/iio/iio_simple_dummy.c
index 0e8e02a3cf5b..141ec6188dea 100644
--- a/drivers/staging/iio/iio_simple_dummy.c
+++ b/drivers/staging/iio/iio_simple_dummy.c
@@ -90,6 +90,11 @@ static const struct iio_chan_spec iio_dummy_channels[] = {
 		 * when converting to standard units (microvolts)
 		 */
 		BIT(IIO_CHAN_INFO_SCALE),
+		/*
+		 * sampling_frequency
+		 * The frequency in Hz at which the channels are sampled
+		 */
+		.info_mask_shared_by_dir = BIT(IIO_CHAN_INFO_SAMP_FREQ),
 		/* The ordering of elements in the buffer via an enum */
 		.scan_index = voltage0,
 		.scan_type = { /* Description of storage in buffer */
@@ -130,6 +135,10 @@ static const struct iio_chan_spec iio_dummy_channels[] = {
 		 * input channels of type IIO_VOLTAGE.
 		 */
 		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
+		/*
+		 * sampling_frequency
+		 * The frequency in Hz at which the channels are sampled
+		 */
 		.scan_index = diffvoltage1m2,
 		.scan_type = { /* Description of storage in buffer */
 			.sign = 's', /* signed */
@@ -147,6 +156,7 @@ static const struct iio_chan_spec iio_dummy_channels[] = {
 		.channel2 = 4,
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
 		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),
+		.info_mask_shared_by_dir = BIT(IIO_CHAN_INFO_SAMP_FREQ),
 		.scan_index = diffvoltage3m4,
 		.scan_type = {
 			.sign = 's',
@@ -173,6 +183,7 @@ static const struct iio_chan_spec iio_dummy_channels[] = {
 		 */
 		BIT(IIO_CHAN_INFO_CALIBSCALE) |
 		BIT(IIO_CHAN_INFO_CALIBBIAS),
+		.info_mask_shared_by_dir = BIT(IIO_CHAN_INFO_SAMP_FREQ),
 		.scan_index = accelx,
 		.scan_type = { /* Description of storage in buffer */
 			.sign = 's', /* signed */
@@ -272,6 +283,11 @@ static int iio_dummy_read_raw(struct iio_dev *indio_dev,
 		*val2 = st->accel_calibscale->val2;
 		ret = IIO_VAL_INT_PLUS_MICRO;
 		break;
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		*val = 3;
+		*val2 = 33;
+		ret = IIO_VAL_INT_PLUS_NANO;
+		break;
 	default:
 		break;
 	}
-- 
cgit 


From da1690e6ca03ae72ff89727d8dfd40f40a365136 Mon Sep 17 00:00:00 2001
From: Jonathan Cameron <jic23@kernel.org>
Date: Sun, 8 Sep 2013 14:57:00 +0100
Subject: iio:temperature:tmp006 put sampling_frequency in
 info_mask_shared_by_all

Doing this makes it possible to access this control from within the kernel.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Acked-by: Peter Meerwald <pmeerw@pmeerw.net>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
---
 drivers/iio/temperature/tmp006.c | 57 +++++++++++++++++++---------------------
 1 file changed, 27 insertions(+), 30 deletions(-)

diff --git a/drivers/iio/temperature/tmp006.c b/drivers/iio/temperature/tmp006.c
index 64ccde3f1f7a..4e950979f43e 100644
--- a/drivers/iio/temperature/tmp006.c
+++ b/drivers/iio/temperature/tmp006.c
@@ -70,12 +70,16 @@ static int tmp006_read_measurement(struct tmp006_data *data, u8 reg)
 	return i2c_smbus_read_word_swapped(data->client, reg);
 }
 
+static const int tmp006_freqs[5][2] = { {4, 0}, {2, 0}, {1, 0},
+					{0, 500000}, {0, 250000} };
+
 static int tmp006_read_raw(struct iio_dev *indio_dev,
 			    struct iio_chan_spec const *channel, int *val,
 			    int *val2, long mask)
 {
 	struct tmp006_data *data = iio_priv(indio_dev);
 	s32 ret;
+	int cr;
 
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
@@ -106,6 +110,12 @@ static int tmp006_read_raw(struct iio_dev *indio_dev,
 			break;
 		}
 		return IIO_VAL_INT_PLUS_MICRO;
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		cr = (data->config & TMP006_CONFIG_CR_MASK)
+			>> TMP006_CONFIG_CR_SHIFT;
+		*val = tmp006_freqs[cr][0];
+		*val2 = tmp006_freqs[cr][1];
+		return IIO_VAL_INT_PLUS_MICRO;
 	default:
 		break;
 	}
@@ -113,48 +123,32 @@ static int tmp006_read_raw(struct iio_dev *indio_dev,
 	return -EINVAL;
 }
 
-static const char * const tmp006_freqs[] = { "4", "2", "1", "0.5", "0.25" };
-
-static ssize_t tmp006_show_freq(struct device *dev,
-				struct device_attribute *attr, char *buf)
-{
-	struct tmp006_data *data = iio_priv(dev_to_iio_dev(dev));
-	int cr = (data->config & TMP006_CONFIG_CR_MASK)
-		>> TMP006_CONFIG_CR_SHIFT;
-	return sprintf(buf, "%s\n", tmp006_freqs[cr]);
-}
-
-static ssize_t tmp006_store_freq(struct device *dev,
-				 struct device_attribute *attr,
-				 const char *buf, size_t len)
+static int tmp006_write_raw(struct iio_dev *indio_dev,
+			    struct iio_chan_spec const *chan,
+			    int val,
+			    int val2,
+			    long mask)
 {
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct tmp006_data *data = iio_priv(indio_dev);
 	int i;
-	bool found = false;
 
 	for (i = 0; i < ARRAY_SIZE(tmp006_freqs); i++)
-		if (sysfs_streq(buf, tmp006_freqs[i])) {
-			found = true;
-			break;
-		}
-	if (!found)
-		return -EINVAL;
+		if ((val == tmp006_freqs[i][0]) &&
+		    (val2 == tmp006_freqs[i][1])) {
+			data->config &= ~TMP006_CONFIG_CR_MASK;
+			data->config |= i << TMP006_CONFIG_CR_SHIFT;
 
-	data->config &= ~TMP006_CONFIG_CR_MASK;
-	data->config |= i << TMP006_CONFIG_CR_SHIFT;
+			return i2c_smbus_write_word_swapped(data->client,
+							    TMP006_CONFIG,
+							    data->config);
 
-	return i2c_smbus_write_word_swapped(data->client, TMP006_CONFIG,
-		data->config);
+		}
+	return -EINVAL;
 }
 
-static IIO_DEV_ATTR_SAMP_FREQ(S_IRUGO | S_IWUSR,
-			tmp006_show_freq, tmp006_store_freq);
-
 static IIO_CONST_ATTR(sampling_frequency_available, "4 2 1 0.5 0.25");
 
 static struct attribute *tmp006_attributes[] = {
-	&iio_dev_attr_sampling_frequency.dev_attr.attr,
 	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
 	NULL
 };
@@ -168,16 +162,19 @@ static const struct iio_chan_spec tmp006_channels[] = {
 		.type = IIO_VOLTAGE,
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
 			BIT(IIO_CHAN_INFO_SCALE),
+		.info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),
 	},
 	{
 		.type = IIO_TEMP,
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
 			BIT(IIO_CHAN_INFO_SCALE),
+		.info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),
 	}
 };
 
 static const struct iio_info tmp006_info = {
 	.read_raw = tmp006_read_raw,
+	.write_raw = tmp006_write_raw,
 	.attrs = &tmp006_attribute_group,
 	.driver_module = THIS_MODULE,
 };
-- 
cgit 


From 6a2f39b78b16b50488f34c8c0e1cfdae2abd9183 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Sun, 15 Sep 2013 16:52:00 +0100
Subject: iio: Fix tcs3472 buffer size

and drop obsolete #define

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/light/tcs3472.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/iio/light/tcs3472.c b/drivers/iio/light/tcs3472.c
index 95510bdd7cba..dc7d8234134f 100644
--- a/drivers/iio/light/tcs3472.c
+++ b/drivers/iio/light/tcs3472.c
@@ -55,12 +55,9 @@ struct tcs3472_data {
 	u8 enable;
 	u8 control;
 	u8 atime;
-	u16 buffer[4];
+	u16 buffer[8]; /* 4 16-bit channels + 64-bit timestamp */
 };
 
-/* 4 16-bit channels + timestamp = 16 bytes */
-#define TSL3472_BUFFER_SIZE 16
-
 #define TCS3472_CHANNEL(_color, _si, _addr) { \
 	.type = IIO_INTENSITY, \
 	.modified = 1, \
-- 
cgit 


From c7a22c36805b015fd220f9fd13d0a14207d556e0 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 15 Sep 2013 17:09:00 +0100
Subject: iio:buffer_cb: Constify iio_cb_access

The iio_cb_access struct is never modified so we can mark it as const.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/buffer_cb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/buffer_cb.c b/drivers/iio/buffer_cb.c
index 9d19ba74f22b..f406889248c8 100644
--- a/drivers/iio/buffer_cb.c
+++ b/drivers/iio/buffer_cb.c
@@ -21,7 +21,7 @@ static int iio_buffer_cb_store_to(struct iio_buffer *buffer, u8 *data)
 	return cb_buff->cb(data, cb_buff->private);
 }
 
-static struct iio_buffer_access_funcs iio_cb_access = {
+static const struct iio_buffer_access_funcs iio_cb_access = {
 	.store_to = &iio_buffer_cb_store_to,
 };
 
-- 
cgit 


From 5d65d92045cb7d3b2c45020c0e62d6d1c1d34f37 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 15 Sep 2013 17:50:00 +0100
Subject: iio: iio_push_to_buffers(): Change type of 'data' to const void *

Change the type of the 'data' parameter for iio_push_to_buffers() from 'u8 *' to
'const void *'. Drivers typically use the correct type (e.g. __be16 *) for their
data buffer. When passing the buffer to iio_push_to_buffers() it needs to be
cast to 'u8 *' for the compiler to not complain (and also having to add __force
if we want to keep sparse happy as well). Since the buffer implementation should
not care about the data layout (except the size of one sample) using a void
pointer is the correct thing to do. Also make it const as the buffer
implementations are not supposed to modify it.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/buffer_cb.c           |  6 +++---
 drivers/iio/industrialio-buffer.c | 10 +++++-----
 drivers/iio/kfifo_buf.c           |  2 +-
 include/linux/iio/buffer.h        |  6 +++---
 include/linux/iio/consumer.h      |  2 +-
 5 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/iio/buffer_cb.c b/drivers/iio/buffer_cb.c
index f406889248c8..578f7199ed51 100644
--- a/drivers/iio/buffer_cb.c
+++ b/drivers/iio/buffer_cb.c
@@ -7,12 +7,12 @@
 
 struct iio_cb_buffer {
 	struct iio_buffer buffer;
-	int (*cb)(u8 *data, void *private);
+	int (*cb)(const void *data, void *private);
 	void *private;
 	struct iio_channel *channels;
 };
 
-static int iio_buffer_cb_store_to(struct iio_buffer *buffer, u8 *data)
+static int iio_buffer_cb_store_to(struct iio_buffer *buffer, const void *data)
 {
 	struct iio_cb_buffer *cb_buff = container_of(buffer,
 						     struct iio_cb_buffer,
@@ -26,7 +26,7 @@ static const struct iio_buffer_access_funcs iio_cb_access = {
 };
 
 struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev,
-					     int (*cb)(u8 *data,
+					     int (*cb)(const void *data,
 						       void *private),
 					     void *private)
 {
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 7ea2edbf7614..a7ac4b5af03e 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -769,8 +769,8 @@ struct iio_demux_table {
 	struct list_head l;
 };
 
-static unsigned char *iio_demux(struct iio_buffer *buffer,
-				 unsigned char *datain)
+static const void *iio_demux(struct iio_buffer *buffer,
+				 const void *datain)
 {
 	struct iio_demux_table *t;
 
@@ -783,9 +783,9 @@ static unsigned char *iio_demux(struct iio_buffer *buffer,
 	return buffer->demux_bounce;
 }
 
-static int iio_push_to_buffer(struct iio_buffer *buffer, unsigned char *data)
+static int iio_push_to_buffer(struct iio_buffer *buffer, const void *data)
 {
-	unsigned char *dataout = iio_demux(buffer, data);
+	const void *dataout = iio_demux(buffer, data);
 
 	return buffer->access->store_to(buffer, dataout);
 }
@@ -800,7 +800,7 @@ static void iio_buffer_demux_free(struct iio_buffer *buffer)
 }
 
 
-int iio_push_to_buffers(struct iio_dev *indio_dev, unsigned char *data)
+int iio_push_to_buffers(struct iio_dev *indio_dev, const void *data)
 {
 	int ret;
 	struct iio_buffer *buf;
diff --git a/drivers/iio/kfifo_buf.c b/drivers/iio/kfifo_buf.c
index 1bea41bcbdc6..538d4616e48f 100644
--- a/drivers/iio/kfifo_buf.c
+++ b/drivers/iio/kfifo_buf.c
@@ -95,7 +95,7 @@ static int iio_set_length_kfifo(struct iio_buffer *r, int length)
 }
 
 static int iio_store_to_kfifo(struct iio_buffer *r,
-			      u8 *data)
+			      const void *data)
 {
 	int ret;
 	struct iio_kfifo *kf = iio_to_kfifo(r);
diff --git a/include/linux/iio/buffer.h b/include/linux/iio/buffer.h
index 2bac0eb8948d..e5507e999ed1 100644
--- a/include/linux/iio/buffer.h
+++ b/include/linux/iio/buffer.h
@@ -36,7 +36,7 @@ struct iio_buffer;
  * any of them not existing.
  **/
 struct iio_buffer_access_funcs {
-	int (*store_to)(struct iio_buffer *buffer, u8 *data);
+	int (*store_to)(struct iio_buffer *buffer, const void *data);
 	int (*read_first_n)(struct iio_buffer *buffer,
 			    size_t n,
 			    char __user *buf);
@@ -81,7 +81,7 @@ struct iio_buffer {
 	bool					stufftoread;
 	const struct attribute_group *attrs;
 	struct list_head			demux_list;
-	unsigned char				*demux_bounce;
+	void					*demux_bounce;
 	struct list_head			buffer_list;
 };
 
@@ -120,7 +120,7 @@ int iio_scan_mask_set(struct iio_dev *indio_dev,
  * @indio_dev:		iio_dev structure for device.
  * @data:		Full scan.
  */
-int iio_push_to_buffers(struct iio_dev *indio_dev, unsigned char *data);
+int iio_push_to_buffers(struct iio_dev *indio_dev, const void *data);
 
 int iio_update_demux(struct iio_dev *indio_dev);
 
diff --git a/include/linux/iio/consumer.h b/include/linux/iio/consumer.h
index 833926c91aa8..2752b1fd12be 100644
--- a/include/linux/iio/consumer.h
+++ b/include/linux/iio/consumer.h
@@ -77,7 +77,7 @@ struct iio_cb_buffer;
  * fail.
  */
 struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev,
-					     int (*cb)(u8 *data,
+					     int (*cb)(const void *data,
 						       void *private),
 					     void *private);
 /**
-- 
cgit 


From 8c60c7e75de79fe429afea3c7300d010c091bc4e Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 15 Sep 2013 17:50:00 +0100
Subject: iio: Remove unnecessary casts for iio_push_to_buffers()

Now that iio_push_to_buffers() takes a void pointer for the data parameter we
can remove those casts to u8*.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/accel/bma180.c                    | 2 +-
 drivers/iio/accel/hid-sensor-accel-3d.c       | 7 ++++---
 drivers/iio/adc/ad7266.c                      | 2 +-
 drivers/iio/adc/ad7298.c                      | 2 +-
 drivers/iio/adc/ad7923.c                      | 2 +-
 drivers/iio/adc/ad_sigma_delta.c              | 2 +-
 drivers/iio/adc/at91_adc.c                    | 2 +-
 drivers/iio/gyro/hid-sensor-gyro-3d.c         | 7 ++++---
 drivers/iio/gyro/itg3200_buffer.c             | 2 +-
 drivers/iio/light/adjd_s311.c                 | 2 +-
 drivers/iio/light/hid-sensor-als.c            | 7 ++++---
 drivers/iio/light/tcs3472.c                   | 2 +-
 drivers/iio/magnetometer/hid-sensor-magn-3d.c | 7 ++++---
 13 files changed, 25 insertions(+), 21 deletions(-)

diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c
index 12e32e6b4103..3eff2469dba9 100644
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -490,7 +490,7 @@ static irqreturn_t bma180_trigger_handler(int irq, void *p)
 	}
 	mutex_unlock(&data->mutex);
 
-	iio_push_to_buffers(indio_dev, (u8 *)data->buff);
+	iio_push_to_buffers(indio_dev, data->buff);
 err:
 	iio_trigger_notify_done(indio_dev->trig);
 
diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c b/drivers/iio/accel/hid-sensor-accel-3d.c
index 46d22f3fb1a9..dcda17395c4e 100644
--- a/drivers/iio/accel/hid-sensor-accel-3d.c
+++ b/drivers/iio/accel/hid-sensor-accel-3d.c
@@ -182,10 +182,11 @@ static const struct iio_info accel_3d_info = {
 };
 
 /* Function to push data to buffer */
-static void hid_sensor_push_data(struct iio_dev *indio_dev, u8 *data, int len)
+static void hid_sensor_push_data(struct iio_dev *indio_dev, const void *data,
+	int len)
 {
 	dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n");
-	iio_push_to_buffers(indio_dev, (u8 *)data);
+	iio_push_to_buffers(indio_dev, data);
 }
 
 /* Callback handler to send event after all samples are received and captured */
@@ -200,7 +201,7 @@ static int accel_3d_proc_event(struct hid_sensor_hub_device *hsdev,
 				accel_state->common_attributes.data_ready);
 	if (accel_state->common_attributes.data_ready)
 		hid_sensor_push_data(indio_dev,
-				(u8 *)accel_state->accel_val,
+				accel_state->accel_val,
 				sizeof(accel_state->accel_val));
 
 	return 0;
diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c
index 371731df1634..5bfed2398b70 100644
--- a/drivers/iio/adc/ad7266.c
+++ b/drivers/iio/adc/ad7266.c
@@ -98,7 +98,7 @@ static irqreturn_t ad7266_trigger_handler(int irq, void *p)
 	if (ret == 0) {
 		if (indio_dev->scan_timestamp)
 			((s64 *)st->data)[1] = pf->timestamp;
-		iio_push_to_buffers(indio_dev, (u8 *)st->data);
+		iio_push_to_buffers(indio_dev, st->data);
 	}
 
 	iio_trigger_notify_done(indio_dev->trig);
diff --git a/drivers/iio/adc/ad7298.c b/drivers/iio/adc/ad7298.c
index 85d1481c312f..0812556c11ff 100644
--- a/drivers/iio/adc/ad7298.c
+++ b/drivers/iio/adc/ad7298.c
@@ -172,7 +172,7 @@ static irqreturn_t ad7298_trigger_handler(int irq, void *p)
 			&time_ns, sizeof(time_ns));
 	}
 
-	iio_push_to_buffers(indio_dev, (u8 *)st->rx_buf);
+	iio_push_to_buffers(indio_dev, st->rx_buf);
 
 done:
 	iio_trigger_notify_done(indio_dev->trig);
diff --git a/drivers/iio/adc/ad7923.c b/drivers/iio/adc/ad7923.c
index 4108dbb28c3d..7eb4cb5a7f0d 100644
--- a/drivers/iio/adc/ad7923.c
+++ b/drivers/iio/adc/ad7923.c
@@ -187,7 +187,7 @@ static irqreturn_t ad7923_trigger_handler(int irq, void *p)
 			&time_ns, sizeof(time_ns));
 	}
 
-	iio_push_to_buffers(indio_dev, (u8 *)st->rx_buf);
+	iio_push_to_buffers(indio_dev, st->rx_buf);
 
 done:
 	iio_trigger_notify_done(indio_dev->trig);
diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c
index f0d6335ae087..78d276f40c8e 100644
--- a/drivers/iio/adc/ad_sigma_delta.c
+++ b/drivers/iio/adc/ad_sigma_delta.c
@@ -391,7 +391,7 @@ static irqreturn_t ad_sd_trigger_handler(int irq, void *p)
 		break;
 	}
 
-	iio_push_to_buffers(indio_dev, (uint8_t *)data);
+	iio_push_to_buffers(indio_dev, data);
 
 	iio_trigger_notify_done(indio_dev->trig);
 	sigma_delta->irq_dis = false;
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index 84be63bdf038..6da5ebb25502 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -89,7 +89,7 @@ static irqreturn_t at91_adc_trigger_handler(int irq, void *p)
 		*timestamp = pf->timestamp;
 	}
 
-	iio_push_to_buffers(idev, (u8 *)st->buffer);
+	iio_push_to_buffers(idev, st->buffer);
 
 	iio_trigger_notify_done(idev->trig);
 
diff --git a/drivers/iio/gyro/hid-sensor-gyro-3d.c b/drivers/iio/gyro/hid-sensor-gyro-3d.c
index c688d974d3e3..ea01c6bcfb56 100644
--- a/drivers/iio/gyro/hid-sensor-gyro-3d.c
+++ b/drivers/iio/gyro/hid-sensor-gyro-3d.c
@@ -182,10 +182,11 @@ static const struct iio_info gyro_3d_info = {
 };
 
 /* Function to push data to buffer */
-static void hid_sensor_push_data(struct iio_dev *indio_dev, u8 *data, int len)
+static void hid_sensor_push_data(struct iio_dev *indio_dev, const void *data,
+	int len)
 {
 	dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n");
-	iio_push_to_buffers(indio_dev, (u8 *)data);
+	iio_push_to_buffers(indio_dev, data);
 }
 
 /* Callback handler to send event after all samples are received and captured */
@@ -200,7 +201,7 @@ static int gyro_3d_proc_event(struct hid_sensor_hub_device *hsdev,
 				gyro_state->common_attributes.data_ready);
 	if (gyro_state->common_attributes.data_ready)
 		hid_sensor_push_data(indio_dev,
-				(u8 *)gyro_state->gyro_val,
+				gyro_state->gyro_val,
 				sizeof(gyro_state->gyro_val));
 
 	return 0;
diff --git a/drivers/iio/gyro/itg3200_buffer.c b/drivers/iio/gyro/itg3200_buffer.c
index 6c43af9bb0a4..6b3c30118c48 100644
--- a/drivers/iio/gyro/itg3200_buffer.c
+++ b/drivers/iio/gyro/itg3200_buffer.c
@@ -59,7 +59,7 @@ static irqreturn_t itg3200_trigger_handler(int irq, void *p)
 		memcpy(buf + indio_dev->scan_bytes - sizeof(s64),
 				&pf->timestamp, sizeof(pf->timestamp));
 
-	iio_push_to_buffers(indio_dev, (u8 *)buf);
+	iio_push_to_buffers(indio_dev, buf);
 	iio_trigger_notify_done(indio_dev->trig);
 
 error_ret:
diff --git a/drivers/iio/light/adjd_s311.c b/drivers/iio/light/adjd_s311.c
index c0da351b1c2e..c9c8b002b27d 100644
--- a/drivers/iio/light/adjd_s311.c
+++ b/drivers/iio/light/adjd_s311.c
@@ -141,7 +141,7 @@ static irqreturn_t adjd_s311_trigger_handler(int irq, void *p)
 	if (indio_dev->scan_timestamp)
 		*(s64 *)((u8 *)data->buffer + ALIGN(len, sizeof(s64)))
 			= time_ns;
-	iio_push_to_buffers(indio_dev, (u8 *)data->buffer);
+	iio_push_to_buffers(indio_dev, data->buffer);
 
 done:
 	iio_trigger_notify_done(indio_dev->trig);
diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c
index e59d00c3139c..fa6ae8cf89ea 100644
--- a/drivers/iio/light/hid-sensor-als.c
+++ b/drivers/iio/light/hid-sensor-als.c
@@ -161,10 +161,11 @@ static const struct iio_info als_info = {
 };
 
 /* Function to push data to buffer */
-static void hid_sensor_push_data(struct iio_dev *indio_dev, u8 *data, int len)
+static void hid_sensor_push_data(struct iio_dev *indio_dev, const void *data,
+					int len)
 {
 	dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n");
-	iio_push_to_buffers(indio_dev, (u8 *)data);
+	iio_push_to_buffers(indio_dev, data);
 }
 
 /* Callback handler to send event after all samples are received and captured */
@@ -179,7 +180,7 @@ static int als_proc_event(struct hid_sensor_hub_device *hsdev,
 				als_state->common_attributes.data_ready);
 	if (als_state->common_attributes.data_ready)
 		hid_sensor_push_data(indio_dev,
-				(u8 *)&als_state->illum,
+				&als_state->illum,
 				sizeof(als_state->illum));
 
 	return 0;
diff --git a/drivers/iio/light/tcs3472.c b/drivers/iio/light/tcs3472.c
index dc7d8234134f..7bf296943745 100644
--- a/drivers/iio/light/tcs3472.c
+++ b/drivers/iio/light/tcs3472.c
@@ -195,7 +195,7 @@ static irqreturn_t tcs3472_trigger_handler(int irq, void *p)
 	if (indio_dev->scan_timestamp)
 		*(s64 *)((u8 *)data->buffer + ALIGN(len, sizeof(s64)))
 			= iio_get_time_ns();
-	iio_push_to_buffers(indio_dev, (u8 *)data->buffer);
+	iio_push_to_buffers(indio_dev, data->buffer);
 
 done:
 	iio_trigger_notify_done(indio_dev->trig);
diff --git a/drivers/iio/magnetometer/hid-sensor-magn-3d.c b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
index a98460b15e4b..2634920562fb 100644
--- a/drivers/iio/magnetometer/hid-sensor-magn-3d.c
+++ b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
@@ -183,10 +183,11 @@ static const struct iio_info magn_3d_info = {
 };
 
 /* Function to push data to buffer */
-static void hid_sensor_push_data(struct iio_dev *indio_dev, u8 *data, int len)
+static void hid_sensor_push_data(struct iio_dev *indio_dev, const void *data,
+	int len)
 {
 	dev_dbg(&indio_dev->dev, "hid_sensor_push_data\n");
-	iio_push_to_buffers(indio_dev, (u8 *)data);
+	iio_push_to_buffers(indio_dev, data);
 }
 
 /* Callback handler to send event after all samples are received and captured */
@@ -201,7 +202,7 @@ static int magn_3d_proc_event(struct hid_sensor_hub_device *hsdev,
 				magn_state->common_attributes.data_ready);
 	if (magn_state->common_attributes.data_ready)
 		hid_sensor_push_data(indio_dev,
-				(u8 *)magn_state->magn_val,
+				magn_state->magn_val,
 				sizeof(magn_state->magn_val));
 
 	return 0;
-- 
cgit 


From 2432e1aeec80872db806b76476733036fcce55ee Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 15 Sep 2013 17:50:00 +0100
Subject: staging:iio: Remove unnecessary casts for iio_push_to_buffers()

Now that iio_push_to_buffers() takes a void pointer for the data parameter we
can remove those casts to u8*.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/accel/lis3l02dq_ring.c      | 2 +-
 drivers/staging/iio/adc/mxs-lradc.c             | 2 +-
 drivers/staging/iio/iio_simple_dummy_buffer.c   | 2 +-
 drivers/staging/iio/impedance-analyzer/ad5933.c | 2 +-
 drivers/staging/iio/meter/ade7758_ring.c        | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c
index 5b8f0f6c9938..36dcc7e0b90d 100644
--- a/drivers/staging/iio/accel/lis3l02dq_ring.c
+++ b/drivers/staging/iio/accel/lis3l02dq_ring.c
@@ -150,7 +150,7 @@ static irqreturn_t lis3l02dq_trigger_handler(int irq, void *p)
 	if (indio_dev->scan_timestamp)
 		*(s64 *)((u8 *)data + ALIGN(len, sizeof(s64)))
 			= pf->timestamp;
-	iio_push_to_buffers(indio_dev, (u8 *)data);
+	iio_push_to_buffers(indio_dev, data);
 
 	kfree(data);
 done:
diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index f36cde506690..7401230d3c33 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -631,7 +631,7 @@ static irqreturn_t mxs_lradc_trigger_handler(int irq, void *p)
 		*timestamp = pf->timestamp;
 	}
 
-	iio_push_to_buffers(iio, (u8 *)lradc->buffer);
+	iio_push_to_buffers(iio, lradc->buffer);
 
 	iio_trigger_notify_done(iio->trig);
 
diff --git a/drivers/staging/iio/iio_simple_dummy_buffer.c b/drivers/staging/iio/iio_simple_dummy_buffer.c
index 72f400c3cbcb..3921865fecd6 100644
--- a/drivers/staging/iio/iio_simple_dummy_buffer.c
+++ b/drivers/staging/iio/iio_simple_dummy_buffer.c
@@ -86,7 +86,7 @@ static irqreturn_t iio_simple_dummy_trigger_h(int irq, void *p)
 	if (indio_dev->scan_timestamp)
 		*(s64 *)((u8 *)data + ALIGN(len, sizeof(s64)))
 			= iio_get_time_ns();
-	iio_push_to_buffers(indio_dev, (u8 *)data);
+	iio_push_to_buffers(indio_dev, data);
 
 	kfree(data);
 
diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c
index 00f70679a2bd..712f3c22ce64 100644
--- a/drivers/staging/iio/impedance-analyzer/ad5933.c
+++ b/drivers/staging/iio/impedance-analyzer/ad5933.c
@@ -676,7 +676,7 @@ static void ad5933_work(struct work_struct *work)
 		} else {
 			buf[0] = be16_to_cpu(buf[0]);
 		}
-		iio_push_to_buffers(indio_dev, (u8 *)buf);
+		iio_push_to_buffers(indio_dev, buf);
 	} else {
 		/* no data available - try again later */
 		schedule_delayed_work(&st->work, st->poll_time_jiffies);
diff --git a/drivers/staging/iio/meter/ade7758_ring.c b/drivers/staging/iio/meter/ade7758_ring.c
index 7d5db7175578..3d8bc2dbbc9c 100644
--- a/drivers/staging/iio/meter/ade7758_ring.c
+++ b/drivers/staging/iio/meter/ade7758_ring.c
@@ -73,7 +73,7 @@ static irqreturn_t ade7758_trigger_handler(int irq, void *p)
 	if (indio_dev->scan_timestamp)
 		dat64[1] = pf->timestamp;
 
-	iio_push_to_buffers(indio_dev, (u8 *)dat64);
+	iio_push_to_buffers(indio_dev, dat64);
 
 	iio_trigger_notify_done(indio_dev->trig);
 
-- 
cgit 


From eeed3765f327755b499c81eaf453e9d52a27c01c Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Fri, 13 Sep 2013 14:16:52 +0200
Subject: ath10k: simplify HTC credits calculation

Credit calculation was overly complex
unnecessarily. Now skb dequeing is more unified.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htc.c | 58 ++++++-----------------------------
 1 file changed, 10 insertions(+), 48 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htc.c b/drivers/net/wireless/ath/ath10k/htc.c
index f03fd8d282dd..1da0f828f458 100644
--- a/drivers/net/wireless/ath/ath10k/htc.c
+++ b/drivers/net/wireless/ath/ath10k/htc.c
@@ -167,49 +167,6 @@ err:
 	return ret;
 }
 
-static struct sk_buff *ath10k_htc_get_skb_credit_based(struct ath10k_htc *htc,
-						       struct ath10k_htc_ep *ep,
-						       u8 *credits)
-{
-	struct sk_buff *skb;
-	struct ath10k_skb_cb *skb_cb;
-	int credits_required;
-	int remainder;
-	unsigned int transfer_len;
-
-	lockdep_assert_held(&htc->tx_lock);
-
-	skb = __skb_dequeue(&ep->tx_queue);
-	if (!skb)
-		return NULL;
-
-	skb_cb = ATH10K_SKB_CB(skb);
-	transfer_len = skb->len;
-
-	if (likely(transfer_len <= htc->target_credit_size)) {
-		credits_required = 1;
-	} else {
-		/* figure out how many credits this message requires */
-		credits_required = transfer_len / htc->target_credit_size;
-		remainder = transfer_len % htc->target_credit_size;
-
-		if (remainder)
-			credits_required++;
-	}
-
-	ath10k_dbg(ATH10K_DBG_HTC, "Credits required %d got %d\n",
-		   credits_required, ep->tx_credits);
-
-	if (ep->tx_credits < credits_required) {
-		__skb_queue_head(&ep->tx_queue, skb);
-		return NULL;
-	}
-
-	ep->tx_credits -= credits_required;
-	*credits = credits_required;
-	return skb;
-}
-
 static void ath10k_htc_send_work(struct work_struct *work)
 {
 	struct ath10k_htc_ep *ep = container_of(work,
@@ -224,11 +181,16 @@ static void ath10k_htc_send_work(struct work_struct *work)
 			ath10k_htc_send_complete_check(ep, 0);
 
 		spin_lock_bh(&htc->tx_lock);
-		if (ep->tx_credit_flow_enabled)
-			skb = ath10k_htc_get_skb_credit_based(htc, ep,
-							      &credits);
-		else
-			skb = __skb_dequeue(&ep->tx_queue);
+		skb = __skb_dequeue(&ep->tx_queue);
+
+		if (ep->tx_credit_flow_enabled) {
+			credits = DIV_ROUND_UP(skb->len,
+					       htc->target_credit_size);
+			if (ep->tx_credits < credits) {
+				__skb_queue_head(&ep->tx_queue, skb);
+				skb = NULL;
+			}
+		}
 		spin_unlock_bh(&htc->tx_lock);
 
 		if (!skb)
-- 
cgit 


From 88e65fc33752f54dfbabc766de15f3be6989f1d1 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Fri, 13 Sep 2013 14:16:53 +0200
Subject: ath10k: add HTC TX credits replenishing notification

This will allow higher layers to anticipate and
act upon TX credits renewal. This will be
important for some future rework of WMI command
submission.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htc.c | 9 +++++++++
 drivers/net/wireless/ath/ath10k/htc.h | 1 +
 2 files changed, 10 insertions(+)

diff --git a/drivers/net/wireless/ath/ath10k/htc.c b/drivers/net/wireless/ath/ath10k/htc.c
index 1da0f828f458..49da4e509084 100644
--- a/drivers/net/wireless/ath/ath10k/htc.c
+++ b/drivers/net/wireless/ath/ath10k/htc.c
@@ -150,6 +150,9 @@ err:
 	ep->tx_credits += credits;
 	spin_unlock_bh(&htc->tx_lock);
 
+	if (ep->ep_ops.ep_tx_credits)
+		ep->ep_ops.ep_tx_credits(htc->ar);
+
 	/* this is the simplest way to handle out-of-resources for non-credit
 	 * based endpoints. credit based endpoints can still get -ENOSR, but
 	 * this is highly unlikely as credit reservation should prevent that */
@@ -302,6 +305,12 @@ ath10k_htc_process_credit_report(struct ath10k_htc *htc,
 		ep = &htc->endpoint[report->eid];
 		ep->tx_credits += report->credits;
 
+		if (ep->ep_ops.ep_tx_credits) {
+			spin_unlock_bh(&htc->tx_lock);
+			ep->ep_ops.ep_tx_credits(htc->ar);
+			spin_lock_bh(&htc->tx_lock);
+		}
+
 		if (ep->tx_credits && !skb_queue_empty(&ep->tx_queue))
 			queue_work(htc->ar->workqueue, &ep->send_work);
 	}
diff --git a/drivers/net/wireless/ath/ath10k/htc.h b/drivers/net/wireless/ath/ath10k/htc.h
index e1dd8c761853..92ca29bf9620 100644
--- a/drivers/net/wireless/ath/ath10k/htc.h
+++ b/drivers/net/wireless/ath/ath10k/htc.h
@@ -276,6 +276,7 @@ struct ath10k_htc_ops {
 struct ath10k_htc_ep_ops {
 	void (*ep_tx_complete)(struct ath10k *, struct sk_buff *);
 	void (*ep_rx_complete)(struct ath10k *, struct sk_buff *);
+	void (*ep_tx_credits)(struct ath10k *);
 };
 
 /* service connection information */
-- 
cgit 


From be8b39439009579a4569598539ea97e227f99d98 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Fri, 13 Sep 2013 14:16:54 +0200
Subject: ath10k: make WMI commands block by design

This will be necessary for further changes in
command submission scheme.

Once HTC is cleaned up WMI commands will finally
block.

This requires for SWBA to be processed in a
non-atomic context for now. Once other necessary
changes are in this will be reverted.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.h  |  1 +
 drivers/net/wireless/ath/ath10k/trace.h | 11 ++++---
 drivers/net/wireless/ath/ath10k/wmi.c   | 54 +++++++++++++++++++++------------
 3 files changed, 42 insertions(+), 24 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 22b17d6ed90e..c953a3317d7b 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -114,6 +114,7 @@ struct ath10k_wmi {
 	struct completion unified_ready;
 	atomic_t pending_tx_count;
 	wait_queue_head_t wq;
+	wait_queue_head_t tx_credits_wq;
 
 	struct sk_buff_head wmi_event_list;
 	struct work_struct wmi_event_work;
diff --git a/drivers/net/wireless/ath/ath10k/trace.h b/drivers/net/wireless/ath/ath10k/trace.h
index bf1ceb88438b..fd53130376c8 100644
--- a/drivers/net/wireless/ath/ath10k/trace.h
+++ b/drivers/net/wireless/ath/ath10k/trace.h
@@ -111,26 +111,29 @@ TRACE_EVENT(ath10k_log_dbg_dump,
 );
 
 TRACE_EVENT(ath10k_wmi_cmd,
-	TP_PROTO(int id, void *buf, size_t buf_len),
+	TP_PROTO(int id, void *buf, size_t buf_len, int ret),
 
-	TP_ARGS(id, buf, buf_len),
+	TP_ARGS(id, buf, buf_len, ret),
 
 	TP_STRUCT__entry(
 		__field(unsigned int, id)
 		__field(size_t, buf_len)
 		__dynamic_array(u8, buf, buf_len)
+		__field(int ret)
 	),
 
 	TP_fast_assign(
 		__entry->id = id;
 		__entry->buf_len = buf_len;
+		__entry->ret = ret;
 		memcpy(__get_dynamic_array(buf), buf, buf_len);
 	),
 
 	TP_printk(
-		"id %d len %zu",
+		"id %d len %zu ret %d",
 		__entry->id,
-		__entry->buf_len
+		__entry->buf_len,
+		__entry->ret
 	)
 );
 
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 32fd5e735beb..66cd8921df27 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -90,13 +90,12 @@ static void ath10k_wmi_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb)
 		wake_up(&ar->wmi.wq);
 }
 
-/* WMI command API */
-static int ath10k_wmi_cmd_send(struct ath10k *ar, struct sk_buff *skb,
-			       enum wmi_cmd_id cmd_id)
+static int ath10k_wmi_cmd_send_nowait(struct ath10k *ar, struct sk_buff *skb,
+				      enum wmi_cmd_id cmd_id)
 {
 	struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(skb);
 	struct wmi_cmd_hdr *cmd_hdr;
-	int status;
+	int ret;
 	u32 cmd = 0;
 
 	if (skb_push(skb, sizeof(struct wmi_cmd_hdr)) == NULL)
@@ -107,26 +106,40 @@ static int ath10k_wmi_cmd_send(struct ath10k *ar, struct sk_buff *skb,
 	cmd_hdr = (struct wmi_cmd_hdr *)skb->data;
 	cmd_hdr->cmd_id = __cpu_to_le32(cmd);
 
-	if (atomic_add_return(1, &ar->wmi.pending_tx_count) >
-	    WMI_MAX_PENDING_TX_COUNT) {
-		/* avoid using up memory when FW hangs */
-		dev_kfree_skb(skb);
-		atomic_dec(&ar->wmi.pending_tx_count);
-		return -EBUSY;
-	}
-
 	memset(skb_cb, 0, sizeof(*skb_cb));
+	ret = ath10k_htc_send(&ar->htc, ar->wmi.eid, skb);
+	trace_ath10k_wmi_cmd(cmd_id, skb->data, skb->len, ret);
 
-	trace_ath10k_wmi_cmd(cmd_id, skb->data, skb->len);
+	if (ret)
+		goto err_pull;
 
-	status = ath10k_htc_send(&ar->htc, ar->wmi.eid, skb);
-	if (status) {
+	return 0;
+
+err_pull:
+	skb_pull(skb, sizeof(struct wmi_cmd_hdr));
+	return ret;
+}
+
+static void ath10k_wmi_op_ep_tx_credits(struct ath10k *ar,
+					enum ath10k_htc_ep_id eid)
+{
+	wake_up(&ar->wmi.tx_credits_wq);
+}
+
+static int ath10k_wmi_cmd_send(struct ath10k *ar, struct sk_buff *skb,
+			       enum wmi_cmd_id cmd_id)
+{
+	int ret = -EINVAL;
+
+	wait_event_timeout(ar->wmi.tx_credits_wq, ({
+		ret = ath10k_wmi_cmd_send_nowait(ar, skb, cmd_id);
+		(ret != -EAGAIN);
+	}), 3*HZ);
+
+	if (ret)
 		dev_kfree_skb_any(skb);
-		atomic_dec(&ar->wmi.pending_tx_count);
-		return status;
-	}
 
-	return 0;
+	return ret;
 }
 
 static int ath10k_wmi_event_scan(struct ath10k *ar, struct sk_buff *skb)
@@ -1168,7 +1181,6 @@ static void ath10k_wmi_process_rx(struct ath10k *ar, struct sk_buff *skb)
 	/* some events require to be handled ASAP
 	 * thus can't be defered to a worker thread */
 	switch (event_id) {
-	case WMI_HOST_SWBA_EVENTID:
 	case WMI_MGMT_RX_EVENTID:
 		ath10k_wmi_event_process(ar, skb);
 		return;
@@ -1186,6 +1198,7 @@ int ath10k_wmi_attach(struct ath10k *ar)
 	init_completion(&ar->wmi.service_ready);
 	init_completion(&ar->wmi.unified_ready);
 	init_waitqueue_head(&ar->wmi.wq);
+	init_waitqueue_head(&ar->wmi.tx_credits_wq);
 
 	skb_queue_head_init(&ar->wmi.wmi_event_list);
 	INIT_WORK(&ar->wmi.wmi_event_work, ath10k_wmi_event_work);
@@ -1215,6 +1228,7 @@ int ath10k_wmi_connect_htc_service(struct ath10k *ar)
 	/* these fields are the same for all service endpoints */
 	conn_req.ep_ops.ep_tx_complete = ath10k_wmi_htc_tx_complete;
 	conn_req.ep_ops.ep_rx_complete = ath10k_wmi_process_rx;
+	conn_req.ep_ops.ep_tx_credits = ath10k_wmi_op_ep_tx_credits;
 
 	/* connect to control service */
 	conn_req.service_id = ATH10K_HTC_SVC_ID_WMI_CONTROL;
-- 
cgit 


From 12acbc43c1c302022984bf0af89ac5f0a24b133a Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Fri, 13 Sep 2013 14:16:55 +0200
Subject: ath10k: simplify HTC command submitting

The patch removes HTC endpoint tx workers in
favour of direct command submission. This makes a
lot more sense for data path.

mac80211 queues are effectively stopped/woken up
in a more timely fashion preventing build up of
frames. It's possible to push more traffic than
the device/system is able to handle and have no
hiccups or performance degradation with UDP
traffic.

WMI commands will now report errors properly and
possibly block as they actively can wait for tx
credits to become available.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htc.c | 176 ++++++++--------------------------
 drivers/net/wireless/ath/ath10k/htc.h |   4 -
 drivers/net/wireless/ath/ath10k/wmi.c |   3 +-
 3 files changed, 43 insertions(+), 140 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htc.c b/drivers/net/wireless/ath/ath10k/htc.c
index 49da4e509084..d0d72125df81 100644
--- a/drivers/net/wireless/ath/ath10k/htc.c
+++ b/drivers/net/wireless/ath/ath10k/htc.c
@@ -117,99 +117,13 @@ static void ath10k_htc_prepare_tx_skb(struct ath10k_htc_ep *ep,
 	spin_unlock_bh(&ep->htc->tx_lock);
 }
 
-static int ath10k_htc_issue_skb(struct ath10k_htc *htc,
-				struct ath10k_htc_ep *ep,
-				struct sk_buff *skb,
-				u8 credits)
-{
-	struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(skb);
-	int ret;
-
-	ath10k_dbg(ATH10K_DBG_HTC, "%s: ep %d skb %p\n", __func__,
-		   ep->eid, skb);
-
-	ath10k_htc_prepare_tx_skb(ep, skb);
-
-	ret = ath10k_skb_map(htc->ar->dev, skb);
-	if (ret)
-		goto err;
-
-	ret = ath10k_hif_send_head(htc->ar,
-				   ep->ul_pipe_id,
-				   ep->eid,
-				   skb->len,
-				   skb);
-	if (unlikely(ret))
-		goto err;
-
-	return 0;
-err:
-	ath10k_warn("HTC issue failed: %d\n", ret);
-
-	spin_lock_bh(&htc->tx_lock);
-	ep->tx_credits += credits;
-	spin_unlock_bh(&htc->tx_lock);
-
-	if (ep->ep_ops.ep_tx_credits)
-		ep->ep_ops.ep_tx_credits(htc->ar);
-
-	/* this is the simplest way to handle out-of-resources for non-credit
-	 * based endpoints. credit based endpoints can still get -ENOSR, but
-	 * this is highly unlikely as credit reservation should prevent that */
-	if (ret == -ENOSR) {
-		spin_lock_bh(&htc->tx_lock);
-		__skb_queue_head(&ep->tx_queue, skb);
-		spin_unlock_bh(&htc->tx_lock);
-
-		return ret;
-	}
-
-	skb_cb->is_aborted = true;
-	ath10k_htc_notify_tx_completion(ep, skb);
-
-	return ret;
-}
-
-static void ath10k_htc_send_work(struct work_struct *work)
-{
-	struct ath10k_htc_ep *ep = container_of(work,
-					struct ath10k_htc_ep, send_work);
-	struct ath10k_htc *htc = ep->htc;
-	struct sk_buff *skb;
-	u8 credits = 0;
-	int ret;
-
-	while (true) {
-		if (ep->ul_is_polled)
-			ath10k_htc_send_complete_check(ep, 0);
-
-		spin_lock_bh(&htc->tx_lock);
-		skb = __skb_dequeue(&ep->tx_queue);
-
-		if (ep->tx_credit_flow_enabled) {
-			credits = DIV_ROUND_UP(skb->len,
-					       htc->target_credit_size);
-			if (ep->tx_credits < credits) {
-				__skb_queue_head(&ep->tx_queue, skb);
-				skb = NULL;
-			}
-		}
-		spin_unlock_bh(&htc->tx_lock);
-
-		if (!skb)
-			break;
-
-		ret = ath10k_htc_issue_skb(htc, ep, skb, credits);
-		if (ret == -ENOSR)
-			break;
-	}
-}
-
 int ath10k_htc_send(struct ath10k_htc *htc,
 		    enum ath10k_htc_ep_id eid,
 		    struct sk_buff *skb)
 {
 	struct ath10k_htc_ep *ep = &htc->endpoint[eid];
+	int credits = 0;
+	int ret;
 
 	if (htc->ar->state == ATH10K_STATE_WEDGED)
 		return -ECOMM;
@@ -219,18 +133,55 @@ int ath10k_htc_send(struct ath10k_htc *htc,
 		return -ENOENT;
 	}
 
+	/* FIXME: This looks ugly, can we fix it? */
 	spin_lock_bh(&htc->tx_lock);
 	if (htc->stopped) {
 		spin_unlock_bh(&htc->tx_lock);
 		return -ESHUTDOWN;
 	}
+	spin_unlock_bh(&htc->tx_lock);
 
-	__skb_queue_tail(&ep->tx_queue, skb);
 	skb_push(skb, sizeof(struct ath10k_htc_hdr));
-	spin_unlock_bh(&htc->tx_lock);
 
-	queue_work(htc->ar->workqueue, &ep->send_work);
+	if (ep->tx_credit_flow_enabled) {
+		credits = DIV_ROUND_UP(skb->len, htc->target_credit_size);
+		spin_lock_bh(&htc->tx_lock);
+		if (ep->tx_credits < credits) {
+			spin_unlock_bh(&htc->tx_lock);
+			ret = -EAGAIN;
+			goto err_pull;
+		}
+		ep->tx_credits -= credits;
+		spin_unlock_bh(&htc->tx_lock);
+	}
+
+	ath10k_htc_prepare_tx_skb(ep, skb);
+
+	ret = ath10k_skb_map(htc->ar->dev, skb);
+	if (ret)
+		goto err_credits;
+
+	ret = ath10k_hif_send_head(htc->ar, ep->ul_pipe_id, ep->eid,
+				   skb->len, skb);
+	if (ret)
+		goto err_unmap;
+
 	return 0;
+
+err_unmap:
+	ath10k_skb_unmap(htc->ar->dev, skb);
+err_credits:
+	if (ep->tx_credit_flow_enabled) {
+		spin_lock_bh(&htc->tx_lock);
+		ep->tx_credits += credits;
+		spin_unlock_bh(&htc->tx_lock);
+
+		if (ep->ep_ops.ep_tx_credits)
+			ep->ep_ops.ep_tx_credits(htc->ar);
+	}
+err_pull:
+	skb_pull(skb, sizeof(struct ath10k_htc_hdr));
+	return ret;
 }
 
 static int ath10k_htc_tx_completion_handler(struct ath10k *ar,
@@ -243,39 +194,9 @@ static int ath10k_htc_tx_completion_handler(struct ath10k *ar,
 	ath10k_htc_notify_tx_completion(ep, skb);
 	/* the skb now belongs to the completion handler */
 
-	/* note: when using TX credit flow, the re-checking of queues happens
-	 * when credits flow back from the target.  in the non-TX credit case,
-	 * we recheck after the packet completes */
-	spin_lock_bh(&htc->tx_lock);
-	if (!ep->tx_credit_flow_enabled && !htc->stopped)
-		queue_work(ar->workqueue, &ep->send_work);
-	spin_unlock_bh(&htc->tx_lock);
-
 	return 0;
 }
 
-/* flush endpoint TX queue */
-static void ath10k_htc_flush_endpoint_tx(struct ath10k_htc *htc,
-					 struct ath10k_htc_ep *ep)
-{
-	struct sk_buff *skb;
-	struct ath10k_skb_cb *skb_cb;
-
-	spin_lock_bh(&htc->tx_lock);
-	for (;;) {
-		skb = __skb_dequeue(&ep->tx_queue);
-		if (!skb)
-			break;
-
-		skb_cb = ATH10K_SKB_CB(skb);
-		skb_cb->is_aborted = true;
-		ath10k_htc_notify_tx_completion(ep, skb);
-	}
-	spin_unlock_bh(&htc->tx_lock);
-
-	cancel_work_sync(&ep->send_work);
-}
-
 /***********/
 /* Receive */
 /***********/
@@ -310,9 +231,6 @@ ath10k_htc_process_credit_report(struct ath10k_htc *htc,
 			ep->ep_ops.ep_tx_credits(htc->ar);
 			spin_lock_bh(&htc->tx_lock);
 		}
-
-		if (ep->tx_credits && !skb_queue_empty(&ep->tx_queue))
-			queue_work(htc->ar->workqueue, &ep->send_work);
 	}
 	spin_unlock_bh(&htc->tx_lock);
 }
@@ -570,10 +488,8 @@ static void ath10k_htc_reset_endpoint_states(struct ath10k_htc *htc)
 		ep->max_ep_message_len = 0;
 		ep->max_tx_queue_depth = 0;
 		ep->eid = i;
-		skb_queue_head_init(&ep->tx_queue);
 		ep->htc = htc;
 		ep->tx_credit_flow_enabled = true;
-		INIT_WORK(&ep->send_work, ath10k_htc_send_work);
 	}
 }
 
@@ -916,18 +832,10 @@ int ath10k_htc_start(struct ath10k_htc *htc)
  */
 void ath10k_htc_stop(struct ath10k_htc *htc)
 {
-	int i;
-	struct ath10k_htc_ep *ep;
-
 	spin_lock_bh(&htc->tx_lock);
 	htc->stopped = true;
 	spin_unlock_bh(&htc->tx_lock);
 
-	for (i = ATH10K_HTC_EP_0; i < ATH10K_HTC_EP_COUNT; i++) {
-		ep = &htc->endpoint[i];
-		ath10k_htc_flush_endpoint_tx(htc, ep);
-	}
-
 	ath10k_hif_stop(htc->ar);
 }
 
diff --git a/drivers/net/wireless/ath/ath10k/htc.h b/drivers/net/wireless/ath/ath10k/htc.h
index 92ca29bf9620..4716d331e6b6 100644
--- a/drivers/net/wireless/ath/ath10k/htc.h
+++ b/drivers/net/wireless/ath/ath10k/htc.h
@@ -316,15 +316,11 @@ struct ath10k_htc_ep {
 	int ul_is_polled; /* call HIF to get tx completions */
 	int dl_is_polled; /* call HIF to fetch rx (not implemented) */
 
-	struct sk_buff_head tx_queue;
-
 	u8 seq_no; /* for debugging */
 	int tx_credits;
 	int tx_credit_size;
 	int tx_credits_per_max_message;
 	bool tx_credit_flow_enabled;
-
-	struct work_struct send_work;
 };
 
 struct ath10k_htc_svc_tx_credits {
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 66cd8921df27..ff407c2f1d2b 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -120,8 +120,7 @@ err_pull:
 	return ret;
 }
 
-static void ath10k_wmi_op_ep_tx_credits(struct ath10k *ar,
-					enum ath10k_htc_ep_id eid)
+static void ath10k_wmi_op_ep_tx_credits(struct ath10k *ar)
 {
 	wake_up(&ar->wmi.tx_credits_wq);
 }
-- 
cgit 


From ed54388a38d817dce7fe22e7dc80fc13b1a6838e Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Fri, 13 Sep 2013 14:16:56 +0200
Subject: ath10k: improve beacon submission latency

The patch prevents beacon misses in some case of
heavy load on a system.

If a beacon can't be transmitted directly from an
SWBA event it will be left in arvif->beacon and
transmission will be retried once TX credits
become available.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.h |  1 +
 drivers/net/wireless/ath/ath10k/mac.c  |  7 ++++
 drivers/net/wireless/ath/ath10k/wmi.c  | 74 ++++++++++++++++++++++++++++------
 drivers/net/wireless/ath/ath10k/wmi.h  |  3 +-
 4 files changed, 71 insertions(+), 14 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index c953a3317d7b..14b7d3de6883 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -204,6 +204,7 @@ struct ath10k_vif {
 	enum wmi_vdev_subtype vdev_subtype;
 	u32 beacon_interval;
 	u32 dtim_period;
+	struct sk_buff *beacon;
 
 	struct ath10k *ar;
 	struct ieee80211_vif *vif;
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 8b9fb660519b..6c3e9d1f80d9 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2075,6 +2075,13 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
 
 	mutex_lock(&ar->conf_mutex);
 
+	spin_lock_bh(&ar->data_lock);
+	if (arvif->beacon) {
+		dev_kfree_skb_any(arvif->beacon);
+		arvif->beacon = NULL;
+	}
+	spin_unlock_bh(&ar->data_lock);
+
 	ar->free_vdev_map |= 1 << (arvif->vdev_id);
 
 	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index ff407c2f1d2b..9152daea9d96 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -120,8 +120,53 @@ err_pull:
 	return ret;
 }
 
+static void ath10k_wmi_tx_beacon_nowait(struct ath10k_vif *arvif)
+{
+	struct wmi_bcn_tx_arg arg = {0};
+	int ret;
+
+	lockdep_assert_held(&arvif->ar->data_lock);
+
+	if (arvif->beacon == NULL)
+		return;
+
+	arg.vdev_id = arvif->vdev_id;
+	arg.tx_rate = 0;
+	arg.tx_power = 0;
+	arg.bcn = arvif->beacon->data;
+	arg.bcn_len = arvif->beacon->len;
+
+	ret = ath10k_wmi_beacon_send_nowait(arvif->ar, &arg);
+	if (ret)
+		return;
+
+	dev_kfree_skb_any(arvif->beacon);
+	arvif->beacon = NULL;
+}
+
+static void ath10k_wmi_tx_beacons_iter(void *data, u8 *mac,
+				       struct ieee80211_vif *vif)
+{
+	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+
+	ath10k_wmi_tx_beacon_nowait(arvif);
+}
+
+static void ath10k_wmi_tx_beacons_nowait(struct ath10k *ar)
+{
+	spin_lock_bh(&ar->data_lock);
+	ieee80211_iterate_active_interfaces_atomic(ar->hw,
+						   IEEE80211_IFACE_ITER_NORMAL,
+						   ath10k_wmi_tx_beacons_iter,
+						   NULL);
+	spin_unlock_bh(&ar->data_lock);
+}
+
 static void ath10k_wmi_op_ep_tx_credits(struct ath10k *ar)
 {
+	/* try to send pending beacons first. they take priority */
+	ath10k_wmi_tx_beacons_nowait(ar);
+
 	wake_up(&ar->wmi.tx_credits_wq);
 }
 
@@ -131,6 +176,9 @@ static int ath10k_wmi_cmd_send(struct ath10k *ar, struct sk_buff *skb,
 	int ret = -EINVAL;
 
 	wait_event_timeout(ar->wmi.tx_credits_wq, ({
+		/* try to send pending beacons first. they take priority */
+		ath10k_wmi_tx_beacons_nowait(ar);
+
 		ret = ath10k_wmi_cmd_send_nowait(ar, skb, cmd_id);
 		(ret != -EAGAIN);
 	}), 3*HZ);
@@ -760,10 +808,8 @@ static void ath10k_wmi_event_host_swba(struct ath10k *ar, struct sk_buff *skb)
 	int i = -1;
 	struct wmi_bcn_info *bcn_info;
 	struct ath10k_vif *arvif;
-	struct wmi_bcn_tx_arg arg;
 	struct sk_buff *bcn;
 	int vdev_id = 0;
-	int ret;
 
 	ath10k_dbg(ATH10K_DBG_MGMT, "WMI_HOST_SWBA_EVENTID\n");
 
@@ -820,17 +866,17 @@ static void ath10k_wmi_event_host_swba(struct ath10k *ar, struct sk_buff *skb)
 		ath10k_wmi_update_tim(ar, arvif, bcn, bcn_info);
 		ath10k_wmi_update_noa(ar, arvif, bcn, bcn_info);
 
-		arg.vdev_id = arvif->vdev_id;
-		arg.tx_rate = 0;
-		arg.tx_power = 0;
-		arg.bcn = bcn->data;
-		arg.bcn_len = bcn->len;
+		spin_lock_bh(&ar->data_lock);
+		if (arvif->beacon) {
+			ath10k_warn("SWBA overrun on vdev %d\n",
+				    arvif->vdev_id);
+			dev_kfree_skb_any(arvif->beacon);
+		}
 
-		ret = ath10k_wmi_beacon_send(ar, &arg);
-		if (ret)
-			ath10k_warn("could not send beacon (%d)\n", ret);
+		arvif->beacon = bcn;
 
-		dev_kfree_skb_any(bcn);
+		ath10k_wmi_tx_beacon_nowait(arvif);
+		spin_unlock_bh(&ar->data_lock);
 	}
 }
 
@@ -1181,6 +1227,7 @@ static void ath10k_wmi_process_rx(struct ath10k *ar, struct sk_buff *skb)
 	 * thus can't be defered to a worker thread */
 	switch (event_id) {
 	case WMI_MGMT_RX_EVENTID:
+	case WMI_HOST_SWBA_EVENTID:
 		ath10k_wmi_event_process(ar, skb);
 		return;
 	default:
@@ -2138,7 +2185,8 @@ int ath10k_wmi_peer_assoc(struct ath10k *ar,
 	return ath10k_wmi_cmd_send(ar, skb, WMI_PEER_ASSOC_CMDID);
 }
 
-int ath10k_wmi_beacon_send(struct ath10k *ar, const struct wmi_bcn_tx_arg *arg)
+int ath10k_wmi_beacon_send_nowait(struct ath10k *ar,
+				  const struct wmi_bcn_tx_arg *arg)
 {
 	struct wmi_bcn_tx_cmd *cmd;
 	struct sk_buff *skb;
@@ -2154,7 +2202,7 @@ int ath10k_wmi_beacon_send(struct ath10k *ar, const struct wmi_bcn_tx_arg *arg)
 	cmd->hdr.bcn_len  = __cpu_to_le32(arg->bcn_len);
 	memcpy(cmd->bcn, arg->bcn, arg->bcn_len);
 
-	return ath10k_wmi_cmd_send(ar, skb, WMI_BCN_TX_CMDID);
+	return ath10k_wmi_cmd_send_nowait(ar, skb, WMI_BCN_TX_CMDID);
 }
 
 static void ath10k_wmi_pdev_set_wmm_param(struct wmi_wmm_params *params,
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index ab46582d4eaa..b100431f2241 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -3110,7 +3110,8 @@ int ath10k_wmi_set_ap_ps_param(struct ath10k *ar, u32 vdev_id, const u8 *mac,
 			       enum wmi_ap_ps_peer_param param_id, u32 value);
 int ath10k_wmi_scan_chan_list(struct ath10k *ar,
 			      const struct wmi_scan_chan_list_arg *arg);
-int ath10k_wmi_beacon_send(struct ath10k *ar, const struct wmi_bcn_tx_arg *arg);
+int ath10k_wmi_beacon_send_nowait(struct ath10k *ar,
+				  const struct wmi_bcn_tx_arg *arg);
 int ath10k_wmi_pdev_set_wmm_params(struct ath10k *ar,
 			const struct wmi_pdev_set_wmm_params_arg *arg);
 int ath10k_wmi_request_stats(struct ath10k *ar, enum wmi_stats_id stats_id);
-- 
cgit 


From 7cc23016366e183dcaf23afa4a0dca61ff7f787a Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Fri, 13 Sep 2013 14:16:57 +0200
Subject: ath10k: remove wmi pending count limit

It is no longer used nor necessary since WMI
commands can block.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.h |  2 --
 drivers/net/wireless/ath/ath10k/mac.c  |  9 ---------
 drivers/net/wireless/ath/ath10k/wmi.c  | 32 --------------------------------
 drivers/net/wireless/ath/ath10k/wmi.h  |  2 --
 4 files changed, 45 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 14b7d3de6883..c2b6a766dabd 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -112,8 +112,6 @@ struct ath10k_wmi {
 	enum ath10k_htc_ep_id eid;
 	struct completion service_ready;
 	struct completion unified_ready;
-	atomic_t pending_tx_count;
-	wait_queue_head_t wq;
 	wait_queue_head_t tx_credits_wq;
 
 	struct sk_buff_head wmi_event_list;
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 6c3e9d1f80d9..11aa13e7587f 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1224,8 +1224,6 @@ static void ath10k_bss_disassoc(struct ieee80211_hw *hw,
 	/* FIXME: why don't we print error if wmi call fails? */
 	ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
 
-	ath10k_wmi_flush_tx(ar);
-
 	arvif->def_wep_key_index = 0;
 }
 
@@ -1664,8 +1662,6 @@ static int ath10k_abort_scan(struct ath10k *ar)
 		return -EIO;
 	}
 
-	ath10k_wmi_flush_tx(ar);
-
 	ret = wait_for_completion_timeout(&ar->scan.completed, 3*HZ);
 	if (ret == 0)
 		ath10k_warn("timed out while waiting for scan to stop\n");
@@ -1699,10 +1695,6 @@ static int ath10k_start_scan(struct ath10k *ar,
 	if (ret)
 		return ret;
 
-	/* make sure we submit the command so the completion
-	* timeout makes sense */
-	ath10k_wmi_flush_tx(ar);
-
 	ret = wait_for_completion_timeout(&ar->scan.started, 1*HZ);
 	if (ret == 0) {
 		ath10k_abort_scan(ar);
@@ -1924,7 +1916,6 @@ static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
 			ret = ath10k_monitor_destroy(ar);
 	}
 
-	ath10k_wmi_flush_tx(ar);
 	mutex_unlock(&ar->conf_mutex);
 	return ret;
 }
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 9152daea9d96..b29d2b954c0e 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -23,30 +23,6 @@
 #include "wmi.h"
 #include "mac.h"
 
-void ath10k_wmi_flush_tx(struct ath10k *ar)
-{
-	int ret;
-
-	lockdep_assert_held(&ar->conf_mutex);
-
-	if (ar->state == ATH10K_STATE_WEDGED) {
-		ath10k_warn("wmi flush skipped - device is wedged anyway\n");
-		return;
-	}
-
-	ret = wait_event_timeout(ar->wmi.wq,
-				 atomic_read(&ar->wmi.pending_tx_count) == 0,
-				 5*HZ);
-	if (atomic_read(&ar->wmi.pending_tx_count) == 0)
-		return;
-
-	if (ret == 0)
-		ret = -ETIMEDOUT;
-
-	if (ret < 0)
-		ath10k_warn("wmi flush failed (%d)\n", ret);
-}
-
 int ath10k_wmi_wait_for_service_ready(struct ath10k *ar)
 {
 	int ret;
@@ -85,9 +61,6 @@ static struct sk_buff *ath10k_wmi_alloc_skb(u32 len)
 static void ath10k_wmi_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb)
 {
 	dev_kfree_skb(skb);
-
-	if (atomic_sub_return(1, &ar->wmi.pending_tx_count) == 0)
-		wake_up(&ar->wmi.wq);
 }
 
 static int ath10k_wmi_cmd_send_nowait(struct ath10k *ar, struct sk_buff *skb,
@@ -1243,7 +1216,6 @@ int ath10k_wmi_attach(struct ath10k *ar)
 {
 	init_completion(&ar->wmi.service_ready);
 	init_completion(&ar->wmi.unified_ready);
-	init_waitqueue_head(&ar->wmi.wq);
 	init_waitqueue_head(&ar->wmi.tx_credits_wq);
 
 	skb_queue_head_init(&ar->wmi.wmi_event_list);
@@ -1254,10 +1226,6 @@ int ath10k_wmi_attach(struct ath10k *ar)
 
 void ath10k_wmi_detach(struct ath10k *ar)
 {
-	/* HTC should've drained the packets already */
-	if (WARN_ON(atomic_read(&ar->wmi.pending_tx_count) > 0))
-		ath10k_warn("there are still pending packets\n");
-
 	cancel_work_sync(&ar->wmi.wmi_event_work);
 	skb_queue_purge(&ar->wmi.wmi_event_list);
 }
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index b100431f2241..2c52c23107dd 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -3044,7 +3044,6 @@ struct wmi_force_fw_hang_cmd {
 
 #define WMI_MAX_EVENT 0x1000
 /* Maximum number of pending TXed WMI packets */
-#define WMI_MAX_PENDING_TX_COUNT 128
 #define WMI_SKB_HEADROOM sizeof(struct wmi_cmd_hdr)
 
 /* By default disable power save for IBSS */
@@ -3057,7 +3056,6 @@ int ath10k_wmi_attach(struct ath10k *ar);
 void ath10k_wmi_detach(struct ath10k *ar);
 int ath10k_wmi_wait_for_service_ready(struct ath10k *ar);
 int ath10k_wmi_wait_for_unified_ready(struct ath10k *ar);
-void ath10k_wmi_flush_tx(struct ath10k *ar);
 
 int ath10k_wmi_connect_htc_service(struct ath10k *ar);
 int ath10k_wmi_pdev_set_channel(struct ath10k *ar,
-- 
cgit 


From 5c6c82df6b574eeb9a8db97833899dc39b1f6a6d Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Fri, 13 Sep 2013 14:16:58 +0200
Subject: ath10k: remove wmi event worker thread

It's not really necessary to have this processed
in a worker. There are no sleepable calls (and
actually shouldn't be).

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.h |  3 ---
 drivers/net/wireless/ath/ath10k/wmi.c  | 44 +---------------------------------
 2 files changed, 1 insertion(+), 46 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index c2b6a766dabd..fcf94ee8fb62 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -113,9 +113,6 @@ struct ath10k_wmi {
 	struct completion service_ready;
 	struct completion unified_ready;
 	wait_queue_head_t tx_credits_wq;
-
-	struct sk_buff_head wmi_event_list;
-	struct work_struct wmi_event_work;
 };
 
 struct ath10k_peer_stat {
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index b29d2b954c0e..6803ead9b9cf 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -1055,7 +1055,7 @@ static int ath10k_wmi_ready_event_rx(struct ath10k *ar, struct sk_buff *skb)
 	return 0;
 }
 
-static void ath10k_wmi_event_process(struct ath10k *ar, struct sk_buff *skb)
+static void ath10k_wmi_process_rx(struct ath10k *ar, struct sk_buff *skb)
 {
 	struct wmi_cmd_hdr *cmd_hdr;
 	enum wmi_event_id id;
@@ -1174,43 +1174,6 @@ static void ath10k_wmi_event_process(struct ath10k *ar, struct sk_buff *skb)
 	dev_kfree_skb(skb);
 }
 
-static void ath10k_wmi_event_work(struct work_struct *work)
-{
-	struct ath10k *ar = container_of(work, struct ath10k,
-					 wmi.wmi_event_work);
-	struct sk_buff *skb;
-
-	for (;;) {
-		skb = skb_dequeue(&ar->wmi.wmi_event_list);
-		if (!skb)
-			break;
-
-		ath10k_wmi_event_process(ar, skb);
-	}
-}
-
-static void ath10k_wmi_process_rx(struct ath10k *ar, struct sk_buff *skb)
-{
-	struct wmi_cmd_hdr *cmd_hdr = (struct wmi_cmd_hdr *)skb->data;
-	enum wmi_event_id event_id;
-
-	event_id = MS(__le32_to_cpu(cmd_hdr->cmd_id), WMI_CMD_HDR_CMD_ID);
-
-	/* some events require to be handled ASAP
-	 * thus can't be defered to a worker thread */
-	switch (event_id) {
-	case WMI_MGMT_RX_EVENTID:
-	case WMI_HOST_SWBA_EVENTID:
-		ath10k_wmi_event_process(ar, skb);
-		return;
-	default:
-		break;
-	}
-
-	skb_queue_tail(&ar->wmi.wmi_event_list, skb);
-	queue_work(ar->workqueue, &ar->wmi.wmi_event_work);
-}
-
 /* WMI Initialization functions */
 int ath10k_wmi_attach(struct ath10k *ar)
 {
@@ -1218,16 +1181,11 @@ int ath10k_wmi_attach(struct ath10k *ar)
 	init_completion(&ar->wmi.unified_ready);
 	init_waitqueue_head(&ar->wmi.tx_credits_wq);
 
-	skb_queue_head_init(&ar->wmi.wmi_event_list);
-	INIT_WORK(&ar->wmi.wmi_event_work, ath10k_wmi_event_work);
-
 	return 0;
 }
 
 void ath10k_wmi_detach(struct ath10k *ar)
 {
-	cancel_work_sync(&ar->wmi.wmi_event_work);
-	skb_queue_purge(&ar->wmi.wmi_event_list);
 }
 
 int ath10k_wmi_connect_htc_service(struct ath10k *ar)
-- 
cgit 


From f81fe64f3d3bc76c1a8d3edb80b54219a60ff291 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 25 Aug 2013 23:25:15 -0700
Subject: Bluetooth: Refactor raw socket filter into more readable code

The handling of the raw socket filter is rather obscure code and it gets
in the way of future extensions. Instead of inline filtering in the raw
socket packet routine, refactor it into its own function.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/hci_sock.c | 64 +++++++++++++++++++++++++++++++-----------------
 1 file changed, 41 insertions(+), 23 deletions(-)

diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 9bd7d959e384..c45ec25aefb9 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -66,6 +66,46 @@ static struct bt_sock_list hci_sk_list = {
 	.lock = __RW_LOCK_UNLOCKED(hci_sk_list.lock)
 };
 
+static bool is_filtered_packet(struct sock *sk, struct sk_buff *skb)
+{
+	struct hci_filter *flt;
+	int flt_type, flt_event;
+
+	/* Apply filter */
+	flt = &hci_pi(sk)->filter;
+
+	if (bt_cb(skb)->pkt_type == HCI_VENDOR_PKT)
+		flt_type = 0;
+	else
+		flt_type = bt_cb(skb)->pkt_type & HCI_FLT_TYPE_BITS;
+
+	if (!test_bit(flt_type, &flt->type_mask))
+		return true;
+
+	/* Extra filter for event packets only */
+	if (bt_cb(skb)->pkt_type != HCI_EVENT_PKT)
+		return false;
+
+	flt_event = (*(__u8 *)skb->data & HCI_FLT_EVENT_BITS);
+
+	if (!hci_test_bit(flt_event, &flt->event_mask))
+		return true;
+
+	/* Check filter only when opcode is set */
+	if (!flt->opcode)
+		return false;
+
+	if (flt_event == HCI_EV_CMD_COMPLETE &&
+	    flt->opcode != get_unaligned((__le16 *)(skb->data + 3)))
+		return true;
+
+	if (flt_event == HCI_EV_CMD_STATUS &&
+	    flt->opcode != get_unaligned((__le16 *)(skb->data + 4)))
+		return true;
+
+	return false;
+}
+
 /* Send frame to RAW socket */
 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb)
 {
@@ -77,7 +117,6 @@ void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb)
 	read_lock(&hci_sk_list.lock);
 
 	sk_for_each(sk, &hci_sk_list.head) {
-		struct hci_filter *flt;
 		struct sk_buff *nskb;
 
 		if (sk->sk_state != BT_BOUND || hci_pi(sk)->hdev != hdev)
@@ -90,30 +129,9 @@ void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb)
 		if (hci_pi(sk)->channel != HCI_CHANNEL_RAW)
 			continue;
 
-		/* Apply filter */
-		flt = &hci_pi(sk)->filter;
-
-		if (!test_bit((bt_cb(skb)->pkt_type == HCI_VENDOR_PKT) ?
-			      0 : (bt_cb(skb)->pkt_type & HCI_FLT_TYPE_BITS),
-			      &flt->type_mask))
+		if (is_filtered_packet(sk, skb))
 			continue;
 
-		if (bt_cb(skb)->pkt_type == HCI_EVENT_PKT) {
-			int evt = (*(__u8 *)skb->data & HCI_FLT_EVENT_BITS);
-
-			if (!hci_test_bit(evt, &flt->event_mask))
-				continue;
-
-			if (flt->opcode &&
-			    ((evt == HCI_EV_CMD_COMPLETE &&
-			      flt->opcode !=
-			      get_unaligned((__le16 *)(skb->data + 3))) ||
-			     (evt == HCI_EV_CMD_STATUS &&
-			      flt->opcode !=
-			      get_unaligned((__le16 *)(skb->data + 4)))))
-				continue;
-		}
-
 		if (!skb_copy) {
 			/* Create a private copy with headroom */
 			skb_copy = __pskb_copy(skb, 1, GFP_ATOMIC);
-- 
cgit 


From 06f43cbc4d61922d5a14c28909f02ae9c7fc5283 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 26 Aug 2013 00:06:30 -0700
Subject: Bluetooth: Fix handling of getpeername() for HCI sockets

The HCI sockets do not have a peer associated with it and so make sure
that getpeername() returns EOPNOTSUPP since this operation is actually
not supported on HCI sockets.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/hci_sock.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index c45ec25aefb9..d8589410142f 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -699,6 +699,9 @@ static int hci_sock_getname(struct socket *sock, struct sockaddr *addr,
 
 	BT_DBG("sock %p sk %p", sock, sk);
 
+	if (peer)
+		return -EOPNOTSUPP;
+
 	if (!hdev)
 		return -EBADFD;
 
-- 
cgit 


From 9d4b68b23947e7bdf3f2707e76bd61572c523f6c Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 26 Aug 2013 00:20:37 -0700
Subject: Bluetooth: Fix handling of getsockname() for HCI sockets

The hci_dev check is not protected and so move it into the socket lock. In
addition return the HCI channel identifier instead of always 0 channel.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/hci_sock.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index d8589410142f..49c5c62ac0c9 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -695,25 +695,30 @@ static int hci_sock_getname(struct socket *sock, struct sockaddr *addr,
 {
 	struct sockaddr_hci *haddr = (struct sockaddr_hci *) addr;
 	struct sock *sk = sock->sk;
-	struct hci_dev *hdev = hci_pi(sk)->hdev;
+	struct hci_dev *hdev;
+	int err = 0;
 
 	BT_DBG("sock %p sk %p", sock, sk);
 
 	if (peer)
 		return -EOPNOTSUPP;
 
-	if (!hdev)
-		return -EBADFD;
-
 	lock_sock(sk);
 
+	hdev = hci_pi(sk)->hdev;
+	if (!hdev) {
+		err = -EBADFD;
+		goto done;
+	}
+
 	*addr_len = sizeof(*haddr);
 	haddr->hci_family = AF_BLUETOOTH;
 	haddr->hci_dev    = hdev->id;
-	haddr->hci_channel= 0;
+	haddr->hci_channel= hci_pi(sk)->channel;
 
+done:
 	release_sock(sk);
-	return 0;
+	return err;
 }
 
 static void hci_sock_cmsg(struct sock *sk, struct msghdr *msg,
-- 
cgit 


From 808a049e2618bb535274aa41bf954232abc44bf5 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 26 Aug 2013 20:57:58 -0700
Subject: Bluetooth: Report error for HCI reset ioctl when device is down

Even if this is legacy API, there is no reason to not report a proper
error when trying to reset a HCI device that is down.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/hci_core.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 634debab4d54..0976eabdafb0 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1344,8 +1344,10 @@ int hci_dev_reset(__u16 dev)
 
 	hci_req_lock(hdev);
 
-	if (!test_bit(HCI_UP, &hdev->flags))
+	if (!test_bit(HCI_UP, &hdev->flags)) {
+		ret = -ENETDOWN;
 		goto done;
+	}
 
 	/* Drop queues */
 	skb_queue_purge(&hdev->rx_q);
-- 
cgit 


From c2371e80b3d0d11df10579a39cdad3310c944325 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 26 Aug 2013 09:29:39 -0700
Subject: Bluetooth: Fix error handling for HCI socket options

The HCI sockets for monitor and control do not support any HCI specific
socket options and if tried, an error will be returned. However the
error used is EINVAL and that is not really descriptive. To make it
clear that these sockets are not handling HCI socket options, return
EBADFD instead.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/hci_sock.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 49c5c62ac0c9..f92e913c8a03 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -921,7 +921,7 @@ static int hci_sock_setsockopt(struct socket *sock, int level, int optname,
 	lock_sock(sk);
 
 	if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) {
-		err = -EINVAL;
+		err = -EBADFD;
 		goto done;
 	}
 
@@ -1007,7 +1007,7 @@ static int hci_sock_getsockopt(struct socket *sock, int level, int optname,
 	lock_sock(sk);
 
 	if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) {
-		err = -EINVAL;
+		err = -EBADFD;
 		goto done;
 	}
 
-- 
cgit 


From c1c4f9567040c5677828142f52b55422886bd62c Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 26 Aug 2013 09:39:55 -0700
Subject: Bluetooth: Restrict ioctls to HCI raw channel sockets

The various legacy ioctls used with HCI sockets are limited to raw
channel only. They are not used on the other channels and also have
no meaning there. So return an error if tried to use them.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/hci_sock.c | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index f92e913c8a03..ab570387f505 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -547,6 +547,15 @@ static int hci_sock_ioctl(struct socket *sock, unsigned int cmd,
 
 	BT_DBG("cmd %x arg %lx", cmd, arg);
 
+	lock_sock(sk);
+
+	if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) {
+		err = -EBADFD;
+		goto done;
+	}
+
+	release_sock(sk);
+
 	switch (cmd) {
 	case HCIGETDEVLIST:
 		return hci_get_dev_list(argp);
@@ -591,13 +600,15 @@ static int hci_sock_ioctl(struct socket *sock, unsigned int cmd,
 
 	case HCIINQUIRY:
 		return hci_inquiry(argp);
-
-	default:
-		lock_sock(sk);
-		err = hci_sock_bound_ioctl(sk, cmd, arg);
-		release_sock(sk);
-		return err;
 	}
+
+	lock_sock(sk);
+
+	err = hci_sock_bound_ioctl(sk, cmd, arg);
+
+done:
+	release_sock(sk);
+	return err;
 }
 
 static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
-- 
cgit 


From 0736cfa8e5bb7ee1d7b7d28aabe634fd3f85cb92 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 26 Aug 2013 21:40:51 -0700
Subject: Bluetooth: Introduce user channel flag for HCI devices

This patch introduces a new user channel flag that allows to give full
control of a HCI device to a user application. The kernel will stay away
from the device and does not allow any further modifications of the
device states.

The existing raw flag is not used since it has a bit of unclear meaning
due to its legacy. Using a new flag makes the code clearer.

A device with the user channel flag set can still be enumerate using the
legacy API, but it does not longer enumerate using the new management
interface used by BlueZ 5 and beyond. This is intentional to not confuse
users of modern systems.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/hci.h |  1 +
 net/bluetooth/hci_core.c    | 39 ++++++++++++++++++++++++++++++++++++---
 net/bluetooth/hci_sock.c    | 15 +++++++++------
 net/bluetooth/mgmt.c        |  9 +++++++++
 4 files changed, 55 insertions(+), 9 deletions(-)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index aaeaf0938ec0..128157db0680 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -109,6 +109,7 @@ enum {
 	HCI_SERVICE_CACHE,
 	HCI_DEBUG_KEYS,
 	HCI_UNREGISTER,
+	HCI_USER_CHANNEL,
 
 	HCI_LE_SCAN,
 	HCI_SSP_ENABLED,
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 0976eabdafb0..0ee0f01d33df 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -984,6 +984,11 @@ int hci_inquiry(void __user *arg)
 	if (!hdev)
 		return -ENODEV;
 
+	if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
+		err = -EBUSY;
+		goto done;
+	}
+
 	hci_dev_lock(hdev);
 	if (inquiry_cache_age(hdev) > INQUIRY_CACHE_AGE_MAX ||
 	    inquiry_cache_empty(hdev) || ir.flags & IREQ_CACHE_FLUSH) {
@@ -1177,7 +1182,8 @@ int hci_dev_open(__u16 dev)
 		if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
 			set_bit(HCI_RAW, &hdev->flags);
 
-		if (!test_bit(HCI_RAW, &hdev->flags))
+		if (!test_bit(HCI_RAW, &hdev->flags) &&
+		    !test_bit(HCI_USER_CHANNEL, &hdev->dev_flags))
 			ret = __hci_init(hdev);
 	}
 
@@ -1188,6 +1194,7 @@ int hci_dev_open(__u16 dev)
 		set_bit(HCI_UP, &hdev->flags);
 		hci_notify(hdev, HCI_DEV_UP);
 		if (!test_bit(HCI_SETUP, &hdev->dev_flags) &&
+		    !test_bit(HCI_USER_CHANNEL, &hdev->dev_flags) &&
 		    mgmt_valid_hdev(hdev)) {
 			hci_dev_lock(hdev);
 			mgmt_powered(hdev, 1);
@@ -1324,11 +1331,17 @@ int hci_dev_close(__u16 dev)
 	if (!hdev)
 		return -ENODEV;
 
+	if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
+		err = -EBUSY;
+		goto done;
+	}
+
 	if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags))
 		cancel_delayed_work(&hdev->power_off);
 
 	err = hci_dev_do_close(hdev);
 
+done:
 	hci_dev_put(hdev);
 	return err;
 }
@@ -1349,6 +1362,11 @@ int hci_dev_reset(__u16 dev)
 		goto done;
 	}
 
+	if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
+		ret = -EBUSY;
+		goto done;
+	}
+
 	/* Drop queues */
 	skb_queue_purge(&hdev->rx_q);
 	skb_queue_purge(&hdev->cmd_q);
@@ -1382,10 +1400,15 @@ int hci_dev_reset_stat(__u16 dev)
 	if (!hdev)
 		return -ENODEV;
 
+	if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
+		ret = -EBUSY;
+		goto done;
+	}
+
 	memset(&hdev->stat, 0, sizeof(struct hci_dev_stats));
 
+done:
 	hci_dev_put(hdev);
-
 	return ret;
 }
 
@@ -1402,6 +1425,11 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg)
 	if (!hdev)
 		return -ENODEV;
 
+	if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
+		err = -EBUSY;
+		goto done;
+	}
+
 	switch (cmd) {
 	case HCISETAUTH:
 		err = hci_req_sync(hdev, hci_auth_req, dr.dev_opt,
@@ -1460,6 +1488,7 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg)
 		break;
 	}
 
+done:
 	hci_dev_put(hdev);
 	return err;
 }
@@ -1568,6 +1597,9 @@ static int hci_rfkill_set_block(void *data, bool blocked)
 
 	BT_DBG("%p name %s blocked %d", hdev, hdev->name, blocked);
 
+	if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags))
+		return -EBUSY;
+
 	if (!blocked)
 		return 0;
 
@@ -3459,7 +3491,8 @@ static void hci_rx_work(struct work_struct *work)
 			hci_send_to_sock(hdev, skb);
 		}
 
-		if (test_bit(HCI_RAW, &hdev->flags)) {
+		if (test_bit(HCI_RAW, &hdev->flags) ||
+		    test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
 			kfree_skb(skb);
 			continue;
 		}
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index ab570387f505..59e68f199178 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -500,6 +500,9 @@ static int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd,
 	if (!hdev)
 		return -EBADFD;
 
+	if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags))
+		return -EBUSY;
+
 	switch (cmd) {
 	case HCISETRAW:
 		if (!capable(CAP_NET_ADMIN))
@@ -530,19 +533,19 @@ static int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd,
 		if (!capable(CAP_NET_ADMIN))
 			return -EPERM;
 		return hci_sock_blacklist_del(hdev, (void __user *) arg);
-
-	default:
-		if (hdev->ioctl)
-			return hdev->ioctl(hdev, cmd, arg);
-		return -EINVAL;
 	}
+
+	if (hdev->ioctl)
+		return hdev->ioctl(hdev, cmd, arg);
+
+	return -EINVAL;
 }
 
 static int hci_sock_ioctl(struct socket *sock, unsigned int cmd,
 			  unsigned long arg)
 {
-	struct sock *sk = sock->sk;
 	void __user *argp = (void __user *) arg;
+	struct sock *sk = sock->sk;
 	int err;
 
 	BT_DBG("cmd %x arg %lx", cmd, arg);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index fedc5399d465..3070e772db6b 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -339,6 +339,9 @@ static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data,
 		if (test_bit(HCI_SETUP, &d->dev_flags))
 			continue;
 
+		if (test_bit(HCI_USER_CHANNEL, &d->dev_flags))
+			continue;
+
 		if (!mgmt_valid_hdev(d))
 			continue;
 
@@ -3320,6 +3323,12 @@ int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
 					 MGMT_STATUS_INVALID_INDEX);
 			goto done;
 		}
+
+		if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
+			err = cmd_status(sk, index, opcode,
+					 MGMT_STATUS_INVALID_INDEX);
+			goto done;
+		}
 	}
 
 	if (opcode >= ARRAY_SIZE(mgmt_handlers) ||
-- 
cgit 


From 23500189d7e03a071f0746f43f2cce875a62c91c Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 26 Aug 2013 21:40:52 -0700
Subject: Bluetooth: Introduce new HCI socket channel for user operation

This patch introcuces a new HCI socket channel that allows user
applications to take control over a specific HCI device. The application
gains exclusive access to this device and forces the kernel to stay away
and not manage it. In case of the management interface it will actually
hide the device.

Such operation is useful for security testing tools that need to operate
underneath the Bluetooth stack and need full control over a device. The
advantage here is that the kernel still provides the service of hardware
abstraction and HCI level access. The use of Bluetooth drivers for
hardware access also means that sniffing tools like btmon or hcidump
are still working and the whole set of transaction can be traced with
existing tools.

With the new channel it is possible to send HCI commands, ACL and SCO
data packets and receive HCI events, ACL and SCO packets from the
device. The format follows the well established H:4 protocol.

The new HCI user channel can only be established when a device has been
through its setup routine and is currently powered down. This is
enforced to not cause any problems with current operations. In addition
only one user channel per HCI device is allowed. It is exclusive access
for one user application. Access to this channel is limited to process
with CAP_NET_RAW capability.

Using this new facility does not require any external library or special
ioctl or socket filters. Just create the socket and bind it. After that
the file descriptor is ready to speak H:4 protocol.

        struct sockaddr_hci addr;
        int fd;

        fd = socket(AF_BLUETOOTH, SOCK_RAW, BTPROTO_HCI);

        memset(&addr, 0, sizeof(addr));
        addr.hci_family = AF_BLUETOOTH;
        addr.hci_dev = 0;
        addr.hci_channel = HCI_CHANNEL_USER;

        bind(fd, (struct sockaddr *) &addr, sizeof(addr));

The example shows on how to create a user channel for hci0 device. Error
handling has been left out of the example. However with the limitations
mentioned above it is advised to handle errors. Binding of the user
cahnnel socket can fail for various reasons. Specifically if the device
is currently activated by BlueZ or if the access permissions are not
present.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/hci.h |  1 +
 net/bluetooth/hci_sock.c    | 86 ++++++++++++++++++++++++++++++++++++++++++---
 2 files changed, 82 insertions(+), 5 deletions(-)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 128157db0680..30c88b585c1b 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -1571,6 +1571,7 @@ struct sockaddr_hci {
 #define HCI_DEV_NONE	0xffff
 
 #define HCI_CHANNEL_RAW		0
+#define HCI_CHANNEL_USER	1
 #define HCI_CHANNEL_MONITOR	2
 #define HCI_CHANNEL_CONTROL	3
 
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 59e68f199178..c09e97638065 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -126,11 +126,20 @@ void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb)
 		if (skb->sk == sk)
 			continue;
 
-		if (hci_pi(sk)->channel != HCI_CHANNEL_RAW)
-			continue;
-
-		if (is_filtered_packet(sk, skb))
+		if (hci_pi(sk)->channel == HCI_CHANNEL_RAW) {
+			if (is_filtered_packet(sk, skb))
+				continue;
+		} else if (hci_pi(sk)->channel == HCI_CHANNEL_USER) {
+			if (!bt_cb(skb)->incoming)
+				continue;
+			if (bt_cb(skb)->pkt_type != HCI_EVENT_PKT &&
+			    bt_cb(skb)->pkt_type != HCI_ACLDATA_PKT &&
+			    bt_cb(skb)->pkt_type != HCI_SCODATA_PKT)
+				continue;
+		} else {
+			/* Don't send frame to other channel types */
 			continue;
+		}
 
 		if (!skb_copy) {
 			/* Create a private copy with headroom */
@@ -444,6 +453,12 @@ static int hci_sock_release(struct socket *sock)
 	bt_sock_unlink(&hci_sk_list, sk);
 
 	if (hdev) {
+		if (hci_pi(sk)->channel == HCI_CHANNEL_USER) {
+			mgmt_index_added(hdev);
+			clear_bit(HCI_USER_CHANNEL, &hdev->dev_flags);
+			hci_dev_close(hdev->id);
+		}
+
 		atomic_dec(&hdev->promisc);
 		hci_dev_put(hdev);
 	}
@@ -661,6 +676,56 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
 		hci_pi(sk)->hdev = hdev;
 		break;
 
+	case HCI_CHANNEL_USER:
+		if (hci_pi(sk)->hdev) {
+			err = -EALREADY;
+			goto done;
+		}
+
+		if (haddr.hci_dev == HCI_DEV_NONE) {
+			err = -EINVAL;
+			goto done;
+		}
+
+		if (!capable(CAP_NET_RAW)) {
+			err = -EPERM;
+			goto done;
+		}
+
+		hdev = hci_dev_get(haddr.hci_dev);
+		if (!hdev) {
+			err = -ENODEV;
+			goto done;
+		}
+
+		if (test_bit(HCI_UP, &hdev->flags) ||
+		    test_bit(HCI_INIT, &hdev->flags) ||
+		    test_bit(HCI_SETUP, &hdev->dev_flags)) {
+			err = -EBUSY;
+			hci_dev_put(hdev);
+			goto done;
+		}
+
+		if (test_and_set_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
+			err = -EUSERS;
+			hci_dev_put(hdev);
+			goto done;
+		}
+
+		mgmt_index_removed(hdev);
+
+		err = hci_dev_open(hdev->id);
+		if (err) {
+			clear_bit(HCI_USER_CHANNEL, &hdev->dev_flags);
+			hci_dev_put(hdev);
+			goto done;
+		}
+
+		atomic_inc(&hdev->promisc);
+
+		hci_pi(sk)->hdev = hdev;
+		break;
+
 	case HCI_CHANNEL_CONTROL:
 		if (haddr.hci_dev != HCI_DEV_NONE) {
 			err = -EINVAL;
@@ -807,6 +872,7 @@ static int hci_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 	case HCI_CHANNEL_RAW:
 		hci_sock_cmsg(sk, msg, skb);
 		break;
+	case HCI_CHANNEL_USER:
 	case HCI_CHANNEL_CONTROL:
 	case HCI_CHANNEL_MONITOR:
 		sock_recv_timestamp(msg, sk, skb);
@@ -841,6 +907,7 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 
 	switch (hci_pi(sk)->channel) {
 	case HCI_CHANNEL_RAW:
+	case HCI_CHANNEL_USER:
 		break;
 	case HCI_CHANNEL_CONTROL:
 		err = mgmt_control(sk, msg, len);
@@ -877,7 +944,8 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 	skb_pull(skb, 1);
 	skb->dev = (void *) hdev;
 
-	if (bt_cb(skb)->pkt_type == HCI_COMMAND_PKT) {
+	if (hci_pi(sk)->channel == HCI_CHANNEL_RAW &&
+	    bt_cb(skb)->pkt_type == HCI_COMMAND_PKT) {
 		u16 opcode = get_unaligned_le16(skb->data);
 		u16 ogf = hci_opcode_ogf(opcode);
 		u16 ocf = hci_opcode_ocf(opcode);
@@ -908,6 +976,14 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 			goto drop;
 		}
 
+		if (hci_pi(sk)->channel == HCI_CHANNEL_USER &&
+		    bt_cb(skb)->pkt_type != HCI_COMMAND_PKT &&
+		    bt_cb(skb)->pkt_type != HCI_ACLDATA_PKT &&
+		    bt_cb(skb)->pkt_type != HCI_SCODATA_PKT) {
+			err = -EINVAL;
+			goto drop;
+		}
+
 		skb_queue_tail(&hdev->raw_q, skb);
 		queue_work(hdev->workqueue, &hdev->tx_work);
 	}
-- 
cgit 


From bfacbb9aec029b3200053d84c8cd5d7575f2d4a5 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 26 Aug 2013 22:02:38 -0700
Subject: Bluetooth: Use devname:vhci module alias for virtual HCI driver

To allow creating /dev/vhci device node, add the proper module alias for
this driver.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 drivers/bluetooth/hci_vhci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index d8b7aed6e4a9..a1ea5b197e5a 100644
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -309,3 +309,4 @@ MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
 MODULE_DESCRIPTION("Bluetooth virtual HCI driver ver " VERSION);
 MODULE_VERSION(VERSION);
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("devname:vhci");
-- 
cgit 


From 23424c0d316941f30cd953fcbff7082044228487 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 2 Sep 2013 10:41:39 -0700
Subject: Bluetooth: Add support creating virtual AMP controllers

So far the only option to create a virtual AMP controller was by
setting a module parameter for the hci_vhci driver. This patch adds
the functionality to define inline to create either a BR/EDR or an
AMP controller.

In addition the client will be informed which HCI controller index
it got assigned. That is especially useful for automated end-to-end
testing.

To keep backwards compatibility with existing userspace, the command
for creating a controller type needs to be send right after opening
the device node. If the command is not send, it defaults back to
automatically creating a BR/EDR controller.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 drivers/bluetooth/hci_vhci.c | 169 +++++++++++++++++++++++++++++++------------
 1 file changed, 123 insertions(+), 46 deletions(-)

diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index a1ea5b197e5a..c04a3e6fb37c 100644
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -24,6 +24,7 @@
  */
 
 #include <linux/module.h>
+#include <asm/unaligned.h>
 
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -39,17 +40,17 @@
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 
-#define VERSION "1.3"
+#define VERSION "1.4"
 
 static bool amp;
 
 struct vhci_data {
 	struct hci_dev *hdev;
 
-	unsigned long flags;
-
 	wait_queue_head_t read_wait;
 	struct sk_buff_head readq;
+
+	struct delayed_work open_timeout;
 };
 
 static int vhci_open_dev(struct hci_dev *hdev)
@@ -99,16 +100,62 @@ static int vhci_send_frame(struct sk_buff *skb)
 	skb_queue_tail(&data->readq, skb);
 
 	wake_up_interruptible(&data->read_wait);
+	return 0;
+}
+
+static int vhci_create_device(struct vhci_data *data, __u8 dev_type)
+{
+	struct hci_dev *hdev;
+	struct sk_buff *skb;
+
+	skb = bt_skb_alloc(4, GFP_KERNEL);
+	if (!skb)
+		return -ENOMEM;
+
+	hdev = hci_alloc_dev();
+	if (!hdev) {
+		kfree_skb(skb);
+		return -ENOMEM;
+	}
+
+	data->hdev = hdev;
+
+	hdev->bus = HCI_VIRTUAL;
+	hdev->dev_type = dev_type;
+	hci_set_drvdata(hdev, data);
+
+	hdev->open  = vhci_open_dev;
+	hdev->close = vhci_close_dev;
+	hdev->flush = vhci_flush;
+	hdev->send  = vhci_send_frame;
 
+	if (hci_register_dev(hdev) < 0) {
+		BT_ERR("Can't register HCI device");
+		hci_free_dev(hdev);
+		data->hdev = NULL;
+		kfree_skb(skb);
+		return -EBUSY;
+	}
+
+	bt_cb(skb)->pkt_type = HCI_VENDOR_PKT;
+
+	*skb_put(skb, 1) = 0xff;
+	*skb_put(skb, 1) = dev_type;
+	put_unaligned_le16(hdev->id, skb_put(skb, 2));
+	skb_queue_tail(&data->readq, skb);
+
+	wake_up_interruptible(&data->read_wait);
 	return 0;
 }
 
 static inline ssize_t vhci_get_user(struct vhci_data *data,
-					const char __user *buf, size_t count)
+				    const char __user *buf, size_t count)
 {
 	struct sk_buff *skb;
+	__u8 pkt_type, dev_type;
+	int ret;
 
-	if (count > HCI_MAX_FRAME_SIZE)
+	if (count < 2 || count > HCI_MAX_FRAME_SIZE)
 		return -EINVAL;
 
 	skb = bt_skb_alloc(count, GFP_KERNEL);
@@ -120,27 +167,70 @@ static inline ssize_t vhci_get_user(struct vhci_data *data,
 		return -EFAULT;
 	}
 
-	skb->dev = (void *) data->hdev;
-	bt_cb(skb)->pkt_type = *((__u8 *) skb->data);
+	pkt_type = *((__u8 *) skb->data);
 	skb_pull(skb, 1);
 
-	hci_recv_frame(skb);
+	switch (pkt_type) {
+	case HCI_EVENT_PKT:
+	case HCI_ACLDATA_PKT:
+	case HCI_SCODATA_PKT:
+		if (!data->hdev) {
+			kfree_skb(skb);
+			return -ENODEV;
+		}
+
+		skb->dev = (void *) data->hdev;
+		bt_cb(skb)->pkt_type = pkt_type;
+
+		ret = hci_recv_frame(skb);
+		break;
+
+	case HCI_VENDOR_PKT:
+		if (data->hdev) {
+			kfree_skb(skb);
+			return -EBADFD;
+		}
 
-	return count;
+		cancel_delayed_work_sync(&data->open_timeout);
+
+		dev_type = *((__u8 *) skb->data);
+		skb_pull(skb, 1);
+
+		if (skb->len > 0) {
+			kfree_skb(skb);
+			return -EINVAL;
+		}
+
+		kfree_skb(skb);
+
+		if (dev_type != HCI_BREDR && dev_type != HCI_AMP)
+			return -EINVAL;
+
+		ret = vhci_create_device(data, dev_type);
+		break;
+
+	default:
+		kfree_skb(skb);
+		return -EINVAL;
+	}
+
+	return (ret < 0) ? ret : count;
 }
 
 static inline ssize_t vhci_put_user(struct vhci_data *data,
-			struct sk_buff *skb, char __user *buf, int count)
+				    struct sk_buff *skb,
+				    char __user *buf, int count)
 {
 	char __user *ptr = buf;
-	int len, total = 0;
+	int len;
 
 	len = min_t(unsigned int, skb->len, count);
 
 	if (copy_to_user(ptr, skb->data, len))
 		return -EFAULT;
 
-	total += len;
+	if (!data->hdev)
+		return len;
 
 	data->hdev->stat.byte_tx += len;
 
@@ -148,21 +238,19 @@ static inline ssize_t vhci_put_user(struct vhci_data *data,
 	case HCI_COMMAND_PKT:
 		data->hdev->stat.cmd_tx++;
 		break;
-
 	case HCI_ACLDATA_PKT:
 		data->hdev->stat.acl_tx++;
 		break;
-
 	case HCI_SCODATA_PKT:
 		data->hdev->stat.sco_tx++;
 		break;
 	}
 
-	return total;
+	return len;
 }
 
 static ssize_t vhci_read(struct file *file,
-				char __user *buf, size_t count, loff_t *pos)
+			 char __user *buf, size_t count, loff_t *pos)
 {
 	struct vhci_data *data = file->private_data;
 	struct sk_buff *skb;
@@ -185,7 +273,7 @@ static ssize_t vhci_read(struct file *file,
 		}
 
 		ret = wait_event_interruptible(data->read_wait,
-					!skb_queue_empty(&data->readq));
+					       !skb_queue_empty(&data->readq));
 		if (ret < 0)
 			break;
 	}
@@ -194,7 +282,7 @@ static ssize_t vhci_read(struct file *file,
 }
 
 static ssize_t vhci_write(struct file *file,
-			const char __user *buf, size_t count, loff_t *pos)
+			  const char __user *buf, size_t count, loff_t *pos)
 {
 	struct vhci_data *data = file->private_data;
 
@@ -213,10 +301,17 @@ static unsigned int vhci_poll(struct file *file, poll_table *wait)
 	return POLLOUT | POLLWRNORM;
 }
 
+static void vhci_open_timeout(struct work_struct *work)
+{
+	struct vhci_data *data = container_of(work, struct vhci_data,
+					      open_timeout.work);
+
+	vhci_create_device(data, amp ? HCI_AMP : HCI_BREDR);
+}
+
 static int vhci_open(struct inode *inode, struct file *file)
 {
 	struct vhci_data *data;
-	struct hci_dev *hdev;
 
 	data = kzalloc(sizeof(struct vhci_data), GFP_KERNEL);
 	if (!data)
@@ -225,35 +320,13 @@ static int vhci_open(struct inode *inode, struct file *file)
 	skb_queue_head_init(&data->readq);
 	init_waitqueue_head(&data->read_wait);
 
-	hdev = hci_alloc_dev();
-	if (!hdev) {
-		kfree(data);
-		return -ENOMEM;
-	}
-
-	data->hdev = hdev;
-
-	hdev->bus = HCI_VIRTUAL;
-	hci_set_drvdata(hdev, data);
-
-	if (amp)
-		hdev->dev_type = HCI_AMP;
-
-	hdev->open     = vhci_open_dev;
-	hdev->close    = vhci_close_dev;
-	hdev->flush    = vhci_flush;
-	hdev->send     = vhci_send_frame;
-
-	if (hci_register_dev(hdev) < 0) {
-		BT_ERR("Can't register HCI device");
-		kfree(data);
-		hci_free_dev(hdev);
-		return -EBUSY;
-	}
+	INIT_DELAYED_WORK(&data->open_timeout, vhci_open_timeout);
 
 	file->private_data = data;
 	nonseekable_open(inode, file);
 
+	schedule_delayed_work(&data->open_timeout, msecs_to_jiffies(1000));
+
 	return 0;
 }
 
@@ -262,8 +335,12 @@ static int vhci_release(struct inode *inode, struct file *file)
 	struct vhci_data *data = file->private_data;
 	struct hci_dev *hdev = data->hdev;
 
-	hci_unregister_dev(hdev);
-	hci_free_dev(hdev);
+	cancel_delayed_work_sync(&data->open_timeout);
+
+	if (hdev) {
+		hci_unregister_dev(hdev);
+		hci_free_dev(hdev);
+	}
 
 	file->private_data = NULL;
 	kfree(data);
-- 
cgit 


From af750e942ea138553ee5693210c2f918448f58dc Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 3 Sep 2013 18:08:37 -0700
Subject: Bluetooth: Disable upper layer connections when user channel is
 active

When the device has the user channel flag set, it means it is driven by
an user application. In that case do not allow any connections from
L2CAP or SCO sockets.

This is the same situation as when the device has the raw flag set and
it will then return EHOSTUNREACH.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/hci_conn.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index f0817121ec5e..d2380e0c7df0 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -518,6 +518,7 @@ struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src)
 	list_for_each_entry(d, &hci_dev_list, list) {
 		if (!test_bit(HCI_UP, &d->flags) ||
 		    test_bit(HCI_RAW, &d->flags) ||
+		    test_bit(HCI_USER_CHANNEL, &d->dev_flags) ||
 		    d->dev_type != HCI_BREDR)
 			continue;
 
-- 
cgit 


From a675d7f1a0a0c0d7bde56ae89609dee56f2033e1 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 3 Sep 2013 18:11:07 -0700
Subject: Bluetooth: Use GFP_KERNEL when cloning SKB in a workqueue

There is no need to use GFP_ATOMIC with skb_clone() when the code is
executed in a workqueue.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/hci_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 0ee0f01d33df..26673d332997 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3547,7 +3547,7 @@ static void hci_cmd_work(struct work_struct *work)
 
 		kfree_skb(hdev->sent_cmd);
 
-		hdev->sent_cmd = skb_clone(skb, GFP_ATOMIC);
+		hdev->sent_cmd = skb_clone(skb, GFP_KERNEL);
 		if (hdev->sent_cmd) {
 			atomic_dec(&hdev->cmd_cnt);
 			hci_send_frame(skb);
-- 
cgit 


From 52de599e04e8767b0d9b7874451cb5db91a4a70b Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 3 Sep 2013 18:08:38 -0700
Subject: Bluetooth: Only schedule raw queue when user channel is active

When the user channel is set and an user application has full control
over the device, do not bother trying to schedule any queues except
the raw queue.

This is an optimization since with user channel, only the raw queue
is in use.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Acked-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/hci_core.c | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 26673d332997..b24d2fa02c2f 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3292,15 +3292,13 @@ static void hci_tx_work(struct work_struct *work)
 	BT_DBG("%s acl %d sco %d le %d", hdev->name, hdev->acl_cnt,
 	       hdev->sco_cnt, hdev->le_cnt);
 
-	/* Schedule queues and send stuff to HCI driver */
-
-	hci_sched_acl(hdev);
-
-	hci_sched_sco(hdev);
-
-	hci_sched_esco(hdev);
-
-	hci_sched_le(hdev);
+	if (!test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
+		/* Schedule queues and send stuff to HCI driver */
+		hci_sched_acl(hdev);
+		hci_sched_sco(hdev);
+		hci_sched_esco(hdev);
+		hci_sched_le(hdev);
+	}
 
 	/* Send next queued raw (unknown type) packet */
 	while ((skb = skb_dequeue(&hdev->raw_q)))
-- 
cgit 


From 7a1aeba7ed0d5a1e83fd5a8ee2a2869430d40347 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 16 Sep 2013 09:34:00 +0100
Subject: iio:max1361: Use default triggered buffer setup ops

The max1361 driver uses the same callbacks as the triggered buffer default
buffer setup ops, so just remove the max1361 specific ops and let it use the
default ops.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/max1363.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/iio/adc/max1363.c b/drivers/iio/adc/max1363.c
index 4fb35d1d7494..1e7160de0b90 100644
--- a/drivers/iio/adc/max1363.c
+++ b/drivers/iio/adc/max1363.c
@@ -1484,12 +1484,6 @@ done:
 	return IRQ_HANDLED;
 }
 
-static const struct iio_buffer_setup_ops max1363_buffered_setup_ops = {
-	.postenable = &iio_triggered_buffer_postenable,
-	.preenable = &iio_sw_buffer_preenable,
-	.predisable = &iio_triggered_buffer_predisable,
-};
-
 static int max1363_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
@@ -1559,7 +1553,7 @@ static int max1363_probe(struct i2c_client *client,
 		goto error_disable_reg;
 
 	ret = iio_triggered_buffer_setup(indio_dev, NULL,
-		&max1363_trigger_handler, &max1363_buffered_setup_ops);
+		&max1363_trigger_handler, NULL);
 	if (ret)
 		goto error_disable_reg;
 
-- 
cgit 


From 57a2312632e072b5f055018988093d6bcb261411 Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Mon, 26 Aug 2013 02:00:37 +0900
Subject: ARM: SAMSUNG: Add soc_is_s3c6400/s3c6410 macros

This patch adds soc_is_s3c6400() and soc_is_s3c6410() macros that allow
to distinguish between specific SoCs from s3c64xx series that is needed
to handle differences between them.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/plat-samsung/include/plat/cpu.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/plat-samsung/include/plat/cpu.h b/arch/arm/plat-samsung/include/plat/cpu.h
index 4fb1f03a10d1..335beb341355 100644
--- a/arch/arm/plat-samsung/include/plat/cpu.h
+++ b/arch/arm/plat-samsung/include/plat/cpu.h
@@ -87,8 +87,12 @@ IS_SAMSUNG_CPU(exynos5440, EXYNOS5440_SOC_ID, EXYNOS5_SOC_MASK)
 #endif
 
 #if defined(CONFIG_CPU_S3C6400) || defined(CONFIG_CPU_S3C6410)
+# define soc_is_s3c6400()	is_samsung_s3c6400()
+# define soc_is_s3c6410()	is_samsung_s3c6410()
 # define soc_is_s3c64xx()	(is_samsung_s3c6400() || is_samsung_s3c6410())
 #else
+# define soc_is_s3c6400()	0
+# define soc_is_s3c6410()	0
 # define soc_is_s3c64xx()	0
 #endif
 
-- 
cgit 


From 8d6c742a6833dffde3ab2ab077480e97b130ccd4 Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Mon, 26 Aug 2013 02:00:37 +0900
Subject: ARM: S3C64XX: Use clk_prepare_enable/clk_disable_unprepare in dma.c

This patch modifies s3c64xx DMA driver to prepare and unprepare clocks
in addition to enableind and disabling, since it is required by common
clock framework.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Tested-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/mach-s3c64xx/dma.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-s3c64xx/dma.c b/arch/arm/mach-s3c64xx/dma.c
index 759846c28d12..c511dfaae148 100644
--- a/arch/arm/mach-s3c64xx/dma.c
+++ b/arch/arm/mach-s3c64xx/dma.c
@@ -677,7 +677,7 @@ static int s3c64xx_dma_init1(int chno, enum dma_ch chbase,
 		goto err_map;
 	}
 
-	clk_enable(dmac->clk);
+	clk_prepare_enable(dmac->clk);
 
 	dmac->regs = regs;
 	dmac->chanbase = chbase;
@@ -711,7 +711,7 @@ static int s3c64xx_dma_init1(int chno, enum dma_ch chbase,
 	return 0;
 
 err_clk:
-	clk_disable(dmac->clk);
+	clk_disable_unprepare(dmac->clk);
 	clk_put(dmac->clk);
 err_map:
 	iounmap(regs);
-- 
cgit 


From d0127f6fc12e311cdd89bb1bd62f36621778d149 Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Mon, 26 Aug 2013 02:00:37 +0900
Subject: usb: ohci-s3c2410.c: Use clk_prepare_enable/clk_disable_unprepare

This patch modifies the ohci-s3c2410 driver to prepare and unprepare
clocks in addition to enabling and disabling, since it is required
by common clock framework.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 drivers/usb/host/ohci-s3c2410.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c
index 4919afa4125e..1adff32e40e2 100644
--- a/drivers/usb/host/ohci-s3c2410.c
+++ b/drivers/usb/host/ohci-s3c2410.c
@@ -47,10 +47,10 @@ static void s3c2410_start_hc(struct platform_device *dev, struct usb_hcd *hcd)
 
 	dev_dbg(&dev->dev, "s3c2410_start_hc:\n");
 
-	clk_enable(usb_clk);
+	clk_prepare_enable(usb_clk);
 	mdelay(2);			/* let the bus clock stabilise */
 
-	clk_enable(clk);
+	clk_prepare_enable(clk);
 
 	if (info != NULL) {
 		info->hcd	= hcd;
@@ -75,8 +75,8 @@ static void s3c2410_stop_hc(struct platform_device *dev)
 			(info->enable_oc)(info, 0);
 	}
 
-	clk_disable(clk);
-	clk_disable(usb_clk);
+	clk_disable_unprepare(clk);
+	clk_disable_unprepare(usb_clk);
 }
 
 /* ohci_s3c2410_hub_status_data
-- 
cgit 


From b69f460dc1a074db3f759c2be9cd13271f91fbdd Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Mon, 26 Aug 2013 02:00:38 +0900
Subject: ARM: S3C64XX: Migrate clock handling to Common Clock Framework

This patch migrates the s3c64xx platform to use the new clock driver
using Common Clock Framework.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/Kconfig                      |  2 +-
 arch/arm/mach-s3c64xx/Makefile        |  2 +-
 arch/arm/mach-s3c64xx/common.c        | 21 +++++++++++++++++----
 arch/arm/mach-s3c64xx/common.h        | 10 +++++-----
 arch/arm/mach-s3c64xx/mach-anw6410.c  |  2 +-
 arch/arm/mach-s3c64xx/mach-crag6410.c |  2 +-
 arch/arm/mach-s3c64xx/mach-hmt.c      |  2 +-
 arch/arm/mach-s3c64xx/mach-mini6410.c |  2 +-
 arch/arm/mach-s3c64xx/mach-ncp.c      |  2 +-
 arch/arm/mach-s3c64xx/mach-smartq.c   | 11 ++---------
 arch/arm/mach-s3c64xx/mach-smdk6400.c |  2 +-
 arch/arm/mach-s3c64xx/mach-smdk6410.c |  2 +-
 arch/arm/mach-s3c64xx/s3c6400.c       |  6 ------
 arch/arm/mach-s3c64xx/s3c6410.c       |  7 -------
 drivers/clk/samsung/Makefile          |  2 --
 15 files changed, 33 insertions(+), 42 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3f7714d8d2d2..76b025e3a74a 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -727,6 +727,7 @@ config ARCH_S3C64XX
 	select ARM_VIC
 	select CLKDEV_LOOKUP
 	select CLKSRC_SAMSUNG_PWM
+	select COMMON_CLK
 	select CPU_V6
 	select GENERIC_CLOCKEVENTS
 	select GPIO_SAMSUNG
@@ -740,7 +741,6 @@ config ARCH_S3C64XX
 	select S3C_DEV_NAND
 	select S3C_GPIO_TRACK
 	select SAMSUNG_ATAGS
-	select SAMSUNG_CLKSRC
 	select SAMSUNG_GPIOLIB_4BIT
 	select SAMSUNG_WDT_RESET
 	select USB_ARCH_HAS_OHCI
diff --git a/arch/arm/mach-s3c64xx/Makefile b/arch/arm/mach-s3c64xx/Makefile
index 31d0c9101272..645a8fe55f8d 100644
--- a/arch/arm/mach-s3c64xx/Makefile
+++ b/arch/arm/mach-s3c64xx/Makefile
@@ -12,7 +12,7 @@ obj-				:=
 
 # Core
 
-obj-y				+= common.o clock.o
+obj-y				+= common.o
 
 # Core support
 
diff --git a/arch/arm/mach-s3c64xx/common.c b/arch/arm/mach-s3c64xx/common.c
index 73d79cf5e141..7d3cb58f1856 100644
--- a/arch/arm/mach-s3c64xx/common.c
+++ b/arch/arm/mach-s3c64xx/common.c
@@ -17,6 +17,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/module.h>
+#include <linux/clk-provider.h>
 #include <linux/interrupt.h>
 #include <linux/ioport.h>
 #include <linux/serial_core.h>
@@ -38,7 +39,6 @@
 #include <mach/regs-gpio.h>
 
 #include <plat/cpu.h>
-#include <plat/clock.h>
 #include <plat/devs.h>
 #include <plat/pm.h>
 #include <plat/gpio-cfg.h>
@@ -50,6 +50,19 @@
 
 #include "common.h"
 
+/* External clock frequency */
+static unsigned long xtal_f = 12000000, xusbxti_f = 48000000;
+
+void __init s3c64xx_set_xtal_freq(unsigned long freq)
+{
+	xtal_f = freq;
+}
+
+void __init s3c64xx_set_xusbxti_freq(unsigned long freq)
+{
+	xusbxti_f = freq;
+}
+
 /* uart registration process */
 
 static void __init s3c64xx_init_uarts(struct s3c2410_uartcfg *cfg, int no)
@@ -67,7 +80,6 @@ static struct cpu_table cpu_ids[] __initdata = {
 		.idcode		= S3C6400_CPU_ID,
 		.idmask		= S3C64XX_CPU_MASK,
 		.map_io		= s3c6400_map_io,
-		.init_clocks	= s3c6400_init_clocks,
 		.init_uarts	= s3c64xx_init_uarts,
 		.init		= s3c6400_init,
 		.name		= name_s3c6400,
@@ -75,7 +87,6 @@ static struct cpu_table cpu_ids[] __initdata = {
 		.idcode		= S3C6410_CPU_ID,
 		.idmask		= S3C64XX_CPU_MASK,
 		.map_io		= s3c6410_map_io,
-		.init_clocks	= s3c6410_init_clocks,
 		.init_uarts	= s3c64xx_init_uarts,
 		.init		= s3c6410_init,
 		.name		= name_s3c6410,
@@ -213,8 +224,10 @@ void __init s3c64xx_init_irq(u32 vic0_valid, u32 vic1_valid)
 {
 	/*
 	 * FIXME: there is no better place to put this at the moment
-	 * (samsung_wdt_reset_init needs clocks)
+	 * (s3c64xx_clk_init needs ioremap and must happen before init_time
+	 * samsung_wdt_reset_init needs clocks)
 	 */
+	s3c64xx_clk_init(NULL, xtal_f, xusbxti_f, soc_is_s3c6400(), S3C_VA_SYS);
 	samsung_wdt_reset_init(S3C_VA_WATCHDOG);
 
 	printk(KERN_DEBUG "%s: initialising interrupts\n", __func__);
diff --git a/arch/arm/mach-s3c64xx/common.h b/arch/arm/mach-s3c64xx/common.h
index e8f990b37665..a2af0e1fdb00 100644
--- a/arch/arm/mach-s3c64xx/common.h
+++ b/arch/arm/mach-s3c64xx/common.h
@@ -22,18 +22,19 @@
 void s3c64xx_init_irq(u32 vic0, u32 vic1);
 void s3c64xx_init_io(struct map_desc *mach_desc, int size);
 
-void s3c64xx_register_clocks(unsigned long xtal, unsigned armclk_limit);
-void s3c64xx_setup_clocks(void);
-
 void s3c64xx_restart(enum reboot_mode mode, const char *cmd);
 void s3c64xx_init_late(void);
 
+void s3c64xx_clk_init(struct device_node *np, unsigned long xtal_f,
+	unsigned long xusbxti_f, bool is_s3c6400, void __iomem *reg_base);
+void s3c64xx_set_xtal_freq(unsigned long freq);
+void s3c64xx_set_xusbxti_freq(unsigned long freq);
+
 #ifdef CONFIG_CPU_S3C6400
 
 extern  int s3c6400_init(void);
 extern void s3c6400_init_irq(void);
 extern void s3c6400_map_io(void);
-extern void s3c6400_init_clocks(int xtal);
 
 #else
 #define s3c6400_init_clocks NULL
@@ -46,7 +47,6 @@ extern void s3c6400_init_clocks(int xtal);
 extern  int s3c6410_init(void);
 extern void s3c6410_init_irq(void);
 extern void s3c6410_map_io(void);
-extern void s3c6410_init_clocks(int xtal);
 
 #else
 #define s3c6410_init_clocks NULL
diff --git a/arch/arm/mach-s3c64xx/mach-anw6410.c b/arch/arm/mach-s3c64xx/mach-anw6410.c
index 35e3f54574ef..d266dd5f7060 100644
--- a/arch/arm/mach-s3c64xx/mach-anw6410.c
+++ b/arch/arm/mach-s3c64xx/mach-anw6410.c
@@ -207,7 +207,7 @@ static struct platform_device *anw6410_devices[] __initdata = {
 static void __init anw6410_map_io(void)
 {
 	s3c64xx_init_io(anw6410_iodesc, ARRAY_SIZE(anw6410_iodesc));
-	s3c24xx_init_clocks(12000000);
+	s3c64xx_set_xtal_freq(12000000);
 	s3c24xx_init_uarts(anw6410_uartcfgs, ARRAY_SIZE(anw6410_uartcfgs));
 	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 
diff --git a/arch/arm/mach-s3c64xx/mach-crag6410.c b/arch/arm/mach-s3c64xx/mach-crag6410.c
index eb8e5a1aca42..1a911df9e451 100644
--- a/arch/arm/mach-s3c64xx/mach-crag6410.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410.c
@@ -743,7 +743,7 @@ static struct s3c2410_platform_i2c i2c1_pdata = {
 static void __init crag6410_map_io(void)
 {
 	s3c64xx_init_io(NULL, 0);
-	s3c24xx_init_clocks(12000000);
+	s3c64xx_set_xtal_freq(12000000);
 	s3c24xx_init_uarts(crag6410_uartcfgs, ARRAY_SIZE(crag6410_uartcfgs));
 	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 
diff --git a/arch/arm/mach-s3c64xx/mach-hmt.c b/arch/arm/mach-s3c64xx/mach-hmt.c
index f39569e0f2e6..e8064044ef79 100644
--- a/arch/arm/mach-s3c64xx/mach-hmt.c
+++ b/arch/arm/mach-s3c64xx/mach-hmt.c
@@ -247,7 +247,7 @@ static struct platform_device *hmt_devices[] __initdata = {
 static void __init hmt_map_io(void)
 {
 	s3c64xx_init_io(hmt_iodesc, ARRAY_SIZE(hmt_iodesc));
-	s3c24xx_init_clocks(12000000);
+	s3c64xx_set_xtal_freq(12000000);
 	s3c24xx_init_uarts(hmt_uartcfgs, ARRAY_SIZE(hmt_uartcfgs));
 	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 }
diff --git a/arch/arm/mach-s3c64xx/mach-mini6410.c b/arch/arm/mach-s3c64xx/mach-mini6410.c
index fc043e3ecdf8..58d46a3d7b78 100644
--- a/arch/arm/mach-s3c64xx/mach-mini6410.c
+++ b/arch/arm/mach-s3c64xx/mach-mini6410.c
@@ -231,7 +231,7 @@ static void __init mini6410_map_io(void)
 	u32 tmp;
 
 	s3c64xx_init_io(NULL, 0);
-	s3c24xx_init_clocks(12000000);
+	s3c64xx_set_xtal_freq(12000000);
 	s3c24xx_init_uarts(mini6410_uartcfgs, ARRAY_SIZE(mini6410_uartcfgs));
 	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 
diff --git a/arch/arm/mach-s3c64xx/mach-ncp.c b/arch/arm/mach-s3c64xx/mach-ncp.c
index 7e2c3908f1f8..2067b0bf55b4 100644
--- a/arch/arm/mach-s3c64xx/mach-ncp.c
+++ b/arch/arm/mach-s3c64xx/mach-ncp.c
@@ -86,7 +86,7 @@ static struct map_desc ncp_iodesc[] __initdata = {};
 static void __init ncp_map_io(void)
 {
 	s3c64xx_init_io(ncp_iodesc, ARRAY_SIZE(ncp_iodesc));
-	s3c24xx_init_clocks(12000000);
+	s3c64xx_set_xtal_freq(12000000);
 	s3c24xx_init_uarts(ncp_uartcfgs, ARRAY_SIZE(ncp_uartcfgs));
 	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 }
diff --git a/arch/arm/mach-s3c64xx/mach-smartq.c b/arch/arm/mach-s3c64xx/mach-smartq.c
index 86d980b448fd..0f47237be3b2 100644
--- a/arch/arm/mach-s3c64xx/mach-smartq.c
+++ b/arch/arm/mach-s3c64xx/mach-smartq.c
@@ -337,13 +337,6 @@ err:
 	return ret;
 }
 
-static int __init smartq_usb_otg_init(void)
-{
-	clk_xusbxti.rate = 12000000;
-
-	return 0;
-}
-
 static int __init smartq_wifi_init(void)
 {
 	int ret;
@@ -377,7 +370,8 @@ static struct map_desc smartq_iodesc[] __initdata = {};
 void __init smartq_map_io(void)
 {
 	s3c64xx_init_io(smartq_iodesc, ARRAY_SIZE(smartq_iodesc));
-	s3c24xx_init_clocks(12000000);
+	s3c64xx_set_xtal_freq(12000000);
+	s3c64xx_set_xusbxti_freq(12000000);
 	s3c24xx_init_uarts(smartq_uartcfgs, ARRAY_SIZE(smartq_uartcfgs));
 	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 
@@ -399,7 +393,6 @@ void __init smartq_machine_init(void)
 	WARN_ON(smartq_lcd_setup_gpio());
 	WARN_ON(smartq_power_off_init());
 	WARN_ON(smartq_usb_host_init());
-	WARN_ON(smartq_usb_otg_init());
 	WARN_ON(smartq_wifi_init());
 
 	platform_add_devices(smartq_devices, ARRAY_SIZE(smartq_devices));
diff --git a/arch/arm/mach-s3c64xx/mach-smdk6400.c b/arch/arm/mach-s3c64xx/mach-smdk6400.c
index d70c0843aea2..27381cfcabbe 100644
--- a/arch/arm/mach-s3c64xx/mach-smdk6400.c
+++ b/arch/arm/mach-s3c64xx/mach-smdk6400.c
@@ -65,7 +65,7 @@ static struct map_desc smdk6400_iodesc[] = {};
 static void __init smdk6400_map_io(void)
 {
 	s3c64xx_init_io(smdk6400_iodesc, ARRAY_SIZE(smdk6400_iodesc));
-	s3c24xx_init_clocks(12000000);
+	s3c64xx_set_xtal_freq(12000000);
 	s3c24xx_init_uarts(smdk6400_uartcfgs, ARRAY_SIZE(smdk6400_uartcfgs));
 	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 }
diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-s3c64xx/mach-smdk6410.c
index d90b450c5645..2a7b32ca5c96 100644
--- a/arch/arm/mach-s3c64xx/mach-smdk6410.c
+++ b/arch/arm/mach-s3c64xx/mach-smdk6410.c
@@ -634,7 +634,7 @@ static void __init smdk6410_map_io(void)
 	u32 tmp;
 
 	s3c64xx_init_io(smdk6410_iodesc, ARRAY_SIZE(smdk6410_iodesc));
-	s3c24xx_init_clocks(12000000);
+	s3c64xx_set_xtal_freq(12000000);
 	s3c24xx_init_uarts(smdk6410_uartcfgs, ARRAY_SIZE(smdk6410_uartcfgs));
 	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 
diff --git a/arch/arm/mach-s3c64xx/s3c6400.c b/arch/arm/mach-s3c64xx/s3c6400.c
index 4869714c6f1b..331fe8e58145 100644
--- a/arch/arm/mach-s3c64xx/s3c6400.c
+++ b/arch/arm/mach-s3c64xx/s3c6400.c
@@ -58,12 +58,6 @@ void __init s3c6400_map_io(void)
 	s3c64xx_onenand1_setname("s3c6400-onenand");
 }
 
-void __init s3c6400_init_clocks(int xtal)
-{
-	s3c64xx_register_clocks(xtal, S3C6400_CLKDIV0_ARM_MASK);
-	s3c64xx_setup_clocks();
-}
-
 void __init s3c6400_init_irq(void)
 {
 	/* VIC0 does not have IRQS 5..7,
diff --git a/arch/arm/mach-s3c64xx/s3c6410.c b/arch/arm/mach-s3c64xx/s3c6410.c
index 31c29fdf1800..7e6fa125584a 100644
--- a/arch/arm/mach-s3c64xx/s3c6410.c
+++ b/arch/arm/mach-s3c64xx/s3c6410.c
@@ -62,13 +62,6 @@ void __init s3c6410_map_io(void)
 	s3c_cfcon_setname("s3c64xx-pata");
 }
 
-void __init s3c6410_init_clocks(int xtal)
-{
-	printk(KERN_DEBUG "%s: initialising clocks\n", __func__);
-	s3c64xx_register_clocks(xtal, S3C6410_CLKDIV0_ARM_MASK);
-	s3c64xx_setup_clocks();
-}
-
 void __init s3c6410_init_irq(void)
 {
 	/* VIC0 is missing IRQ7, VIC1 is fully populated. */
diff --git a/drivers/clk/samsung/Makefile b/drivers/clk/samsung/Makefile
index 3413380086d5..8eb4799237f0 100644
--- a/drivers/clk/samsung/Makefile
+++ b/drivers/clk/samsung/Makefile
@@ -8,6 +8,4 @@ obj-$(CONFIG_SOC_EXYNOS5250)	+= clk-exynos5250.o
 obj-$(CONFIG_SOC_EXYNOS5420)	+= clk-exynos5420.o
 obj-$(CONFIG_SOC_EXYNOS5440)	+= clk-exynos5440.o
 obj-$(CONFIG_ARCH_EXYNOS)	+= clk-exynos-audss.o
-ifdef CONFIG_COMMON_CLK
 obj-$(CONFIG_ARCH_S3C64XX)	+= clk-s3c64xx.o
-endif
-- 
cgit 


From 66fcbe6b7c2827866100837611c9838298a28486 Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Mon, 26 Aug 2013 02:00:38 +0900
Subject: ARM: S3C64XX: Remove old clock management code

This patch removes old clock management code of S3C64xx, since the
platform has been already moved to the new clock driver using Common
Clock Framework.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/mach-s3c64xx/clock.c                   | 1007 -----------------------
 arch/arm/mach-s3c64xx/common.h                  |    2 -
 arch/arm/mach-s3c64xx/include/mach/regs-clock.h |  132 +--
 arch/arm/mach-s3c64xx/pm.c                      |   21 -
 4 files changed, 4 insertions(+), 1158 deletions(-)
 delete mode 100644 arch/arm/mach-s3c64xx/clock.c

diff --git a/arch/arm/mach-s3c64xx/clock.c b/arch/arm/mach-s3c64xx/clock.c
deleted file mode 100644
index c1bcc4a6d3a8..000000000000
--- a/arch/arm/mach-s3c64xx/clock.c
+++ /dev/null
@@ -1,1007 +0,0 @@
-/* linux/arch/arm/plat-s3c64xx/clock.c
- *
- * Copyright 2008 Openmoko, Inc.
- * Copyright 2008 Simtec Electronics
- *	Ben Dooks <ben@simtec.co.uk>
- *	http://armlinux.simtec.co.uk/
- *
- * S3C64XX Base clock support
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/ioport.h>
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/io.h>
-
-#include <mach/hardware.h>
-#include <mach/map.h>
-
-#include <mach/regs-clock.h>
-
-#include <plat/cpu.h>
-#include <plat/devs.h>
-#include <plat/cpu-freq.h>
-#include <plat/clock.h>
-#include <plat/clock-clksrc.h>
-#include <plat/pll.h>
-
-#include "regs-sys.h"
-
-/* fin_apll, fin_mpll and fin_epll are all the same clock, which we call
- * ext_xtal_mux for want of an actual name from the manual.
-*/
-
-static struct clk clk_ext_xtal_mux = {
-	.name		= "ext_xtal",
-};
-
-#define clk_fin_apll clk_ext_xtal_mux
-#define clk_fin_mpll clk_ext_xtal_mux
-#define clk_fin_epll clk_ext_xtal_mux
-
-#define clk_fout_mpll	clk_mpll
-#define clk_fout_epll	clk_epll
-
-struct clk clk_h2 = {
-	.name		= "hclk2",
-	.rate		= 0,
-};
-
-struct clk clk_27m = {
-	.name		= "clk_27m",
-	.rate		= 27000000,
-};
-
-static int clk_48m_ctrl(struct clk *clk, int enable)
-{
-	unsigned long flags;
-	u32 val;
-
-	/* can't rely on clock lock, this register has other usages */
-	local_irq_save(flags);
-
-	val = __raw_readl(S3C64XX_OTHERS);
-	if (enable)
-		val |= S3C64XX_OTHERS_USBMASK;
-	else
-		val &= ~S3C64XX_OTHERS_USBMASK;
-
-	__raw_writel(val, S3C64XX_OTHERS);
-	local_irq_restore(flags);
-
-	return 0;
-}
-
-struct clk clk_48m = {
-	.name		= "clk_48m",
-	.rate		= 48000000,
-	.enable		= clk_48m_ctrl,
-};
-
-struct clk clk_xusbxti = {
-	.name		= "xusbxti",
-	.rate		= 48000000,
-};
-
-static int inline s3c64xx_gate(void __iomem *reg,
-				struct clk *clk,
-				int enable)
-{
-	unsigned int ctrlbit = clk->ctrlbit;
-	u32 con;
-
-	con = __raw_readl(reg);
-
-	if (enable)
-		con |= ctrlbit;
-	else
-		con &= ~ctrlbit;
-
-	__raw_writel(con, reg);
-	return 0;
-}
-
-static int s3c64xx_pclk_ctrl(struct clk *clk, int enable)
-{
-	return s3c64xx_gate(S3C_PCLK_GATE, clk, enable);
-}
-
-static int s3c64xx_hclk_ctrl(struct clk *clk, int enable)
-{
-	return s3c64xx_gate(S3C_HCLK_GATE, clk, enable);
-}
-
-int s3c64xx_sclk_ctrl(struct clk *clk, int enable)
-{
-	return s3c64xx_gate(S3C_SCLK_GATE, clk, enable);
-}
-
-static struct clk init_clocks_off[] = {
-	{
-		.name		= "nand",
-		.parent		= &clk_h,
-	}, {
-		.name		= "rtc",
-		.parent		= &clk_p,
-		.enable		= s3c64xx_pclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_PCLK_RTC,
-	}, {
-		.name		= "adc",
-		.parent		= &clk_p,
-		.enable		= s3c64xx_pclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_PCLK_TSADC,
-	}, {
-		.name		= "i2c",
-		.devname        = "s3c2440-i2c.0",
-		.parent		= &clk_p,
-		.enable		= s3c64xx_pclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_PCLK_IIC,
-	}, {
-		.name		= "i2c",
-		.devname	= "s3c2440-i2c.1",
-		.parent		= &clk_p,
-		.enable		= s3c64xx_pclk_ctrl,
-		.ctrlbit	= S3C6410_CLKCON_PCLK_I2C1,
-	}, {
-		.name		= "keypad",
-		.parent		= &clk_p,
-		.enable		= s3c64xx_pclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_PCLK_KEYPAD,
-	}, {
-		.name		= "spi",
-		.devname	= "s3c6410-spi.0",
-		.parent		= &clk_p,
-		.enable		= s3c64xx_pclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_PCLK_SPI0,
-	}, {
-		.name		= "spi",
-		.devname	= "s3c6410-spi.1",
-		.parent		= &clk_p,
-		.enable		= s3c64xx_pclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_PCLK_SPI1,
-	}, {
-		.name		= "48m",
-		.devname	= "s3c-sdhci.0",
-		.parent		= &clk_48m,
-		.enable		= s3c64xx_sclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_SCLK_MMC0_48,
-	}, {
-		.name		= "48m",
-		.devname	= "s3c-sdhci.1",
-		.parent		= &clk_48m,
-		.enable		= s3c64xx_sclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_SCLK_MMC1_48,
-	}, {
-		.name		= "48m",
-		.devname	= "s3c-sdhci.2",
-		.parent		= &clk_48m,
-		.enable		= s3c64xx_sclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_SCLK_MMC2_48,
-	}, {
-		.name		= "ac97",
-		.parent		= &clk_p,
-		.ctrlbit	= S3C_CLKCON_PCLK_AC97,
-	}, {
-		.name		= "cfcon",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_IHOST,
-	}, {
-		.name		= "dma0",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_DMA0,
-	}, {
-		.name		= "dma1",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_DMA1,
-	}, {
-		.name		= "3dse",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_3DSE,
-	}, {
-		.name		= "hclk_secur",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_SECUR,
-	}, {
-		.name		= "sdma1",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_SDMA1,
-	}, {
-		.name		= "sdma0",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_SDMA0,
-	}, {
-		.name		= "hclk_jpeg",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_JPEG,
-	}, {
-		.name		= "camif",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_CAMIF,
-	}, {
-		.name		= "hclk_scaler",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_SCALER,
-	}, {
-		.name		= "2d",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_2D,
-	}, {
-		.name		= "tv",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_TV,
-	}, {
-		.name		= "post0",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_POST0,
-	}, {
-		.name		= "rot",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_ROT,
-	}, {
-		.name		= "hclk_mfc",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_MFC,
-	}, {
-		.name		= "pclk_mfc",
-		.parent		= &clk_p,
-		.enable		= s3c64xx_pclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_PCLK_MFC,
-	}, {
-		.name		= "dac27",
-		.enable		= s3c64xx_sclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_SCLK_DAC27,
-	}, {
-		.name		= "tv27",
-		.enable		= s3c64xx_sclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_SCLK_TV27,
-	}, {
-		.name		= "scaler27",
-		.enable		= s3c64xx_sclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_SCLK_SCALER27,
-	}, {
-		.name		= "sclk_scaler",
-		.enable		= s3c64xx_sclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_SCLK_SCALER,
-	}, {
-		.name		= "post0_27",
-		.enable		= s3c64xx_sclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_SCLK_POST0_27,
-	}, {
-		.name		= "secur",
-		.enable		= s3c64xx_sclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_SCLK_SECUR,
-	}, {
-		.name		= "sclk_mfc",
-		.enable		= s3c64xx_sclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_SCLK_MFC,
-	}, {
-		.name		= "sclk_jpeg",
-		.enable		= s3c64xx_sclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_SCLK_JPEG,
-	},
-};
-
-static struct clk clk_48m_spi0 = {
-	.name		= "spi_48m",
-	.devname	= "s3c6410-spi.0",
-	.parent		= &clk_48m,
-	.enable		= s3c64xx_sclk_ctrl,
-	.ctrlbit	= S3C_CLKCON_SCLK_SPI0_48,
-};
-
-static struct clk clk_48m_spi1 = {
-	.name		= "spi_48m",
-	.devname	= "s3c6410-spi.1",
-	.parent		= &clk_48m,
-	.enable		= s3c64xx_sclk_ctrl,
-	.ctrlbit	= S3C_CLKCON_SCLK_SPI1_48,
-};
-
-static struct clk clk_i2s0 = {
-	.name		= "iis",
-	.devname	= "samsung-i2s.0",
-	.parent		= &clk_p,
-	.enable		= s3c64xx_pclk_ctrl,
-	.ctrlbit	= S3C_CLKCON_PCLK_IIS0,
-};
-
-static struct clk clk_i2s1 = {
-	.name		= "iis",
-	.devname	= "samsung-i2s.1",
-	.parent		= &clk_p,
-	.enable		= s3c64xx_pclk_ctrl,
-	.ctrlbit	= S3C_CLKCON_PCLK_IIS1,
-};
-
-#ifdef CONFIG_CPU_S3C6410
-static struct clk clk_i2s2 = {
-	.name		= "iis",
-	.devname	= "samsung-i2s.2",
-	.parent		= &clk_p,
-	.enable		= s3c64xx_pclk_ctrl,
-	.ctrlbit	= S3C6410_CLKCON_PCLK_IIS2,
-};
-#endif
-
-static struct clk init_clocks[] = {
-	{
-		.name		= "lcd",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_LCD,
-	}, {
-		.name		= "gpio",
-		.parent		= &clk_p,
-		.enable		= s3c64xx_pclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_PCLK_GPIO,
-	}, {
-		.name		= "usb-host",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_UHOST,
-	}, {
-		.name		= "otg",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_USB,
-	}, {
-		.name		= "timers",
-		.parent		= &clk_p,
-		.enable		= s3c64xx_pclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_PCLK_PWM,
-	}, {
-		.name		= "uart",
-		.devname	= "s3c6400-uart.0",
-		.parent		= &clk_p,
-		.enable		= s3c64xx_pclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_PCLK_UART0,
-	}, {
-		.name		= "uart",
-		.devname	= "s3c6400-uart.1",
-		.parent		= &clk_p,
-		.enable		= s3c64xx_pclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_PCLK_UART1,
-	}, {
-		.name		= "uart",
-		.devname	= "s3c6400-uart.2",
-		.parent		= &clk_p,
-		.enable		= s3c64xx_pclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_PCLK_UART2,
-	}, {
-		.name		= "uart",
-		.devname	= "s3c6400-uart.3",
-		.parent		= &clk_p,
-		.enable		= s3c64xx_pclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_PCLK_UART3,
-	}, {
-		.name		= "watchdog",
-		.parent		= &clk_p,
-		.ctrlbit	= S3C_CLKCON_PCLK_WDT,
-	},
-};
-
-static struct clk clk_hsmmc0 = {
-	.name		= "hsmmc",
-	.devname	= "s3c-sdhci.0",
-	.parent		= &clk_h,
-	.enable		= s3c64xx_hclk_ctrl,
-	.ctrlbit	= S3C_CLKCON_HCLK_HSMMC0,
-};
-
-static struct clk clk_hsmmc1 = {
-	.name		= "hsmmc",
-	.devname	= "s3c-sdhci.1",
-	.parent		= &clk_h,
-	.enable		= s3c64xx_hclk_ctrl,
-	.ctrlbit	= S3C_CLKCON_HCLK_HSMMC1,
-};
-
-static struct clk clk_hsmmc2 = {
-	.name		= "hsmmc",
-	.devname	= "s3c-sdhci.2",
-	.parent		= &clk_h,
-	.enable		= s3c64xx_hclk_ctrl,
-	.ctrlbit	= S3C_CLKCON_HCLK_HSMMC2,
-};
-
-static struct clk clk_fout_apll = {
-	.name		= "fout_apll",
-};
-
-static struct clk *clk_src_apll_list[] = {
-	[0] = &clk_fin_apll,
-	[1] = &clk_fout_apll,
-};
-
-static struct clksrc_sources clk_src_apll = {
-	.sources	= clk_src_apll_list,
-	.nr_sources	= ARRAY_SIZE(clk_src_apll_list),
-};
-
-static struct clksrc_clk clk_mout_apll = {
-	.clk	= {
-		.name		= "mout_apll",
-	},
-	.reg_src	= { .reg = S3C_CLK_SRC, .shift = 0, .size = 1  },
-	.sources	= &clk_src_apll,
-};
-
-static struct clk *clk_src_epll_list[] = {
-	[0] = &clk_fin_epll,
-	[1] = &clk_fout_epll,
-};
-
-static struct clksrc_sources clk_src_epll = {
-	.sources	= clk_src_epll_list,
-	.nr_sources	= ARRAY_SIZE(clk_src_epll_list),
-};
-
-static struct clksrc_clk clk_mout_epll = {
-	.clk	= {
-		.name		= "mout_epll",
-	},
-	.reg_src	= { .reg = S3C_CLK_SRC, .shift = 2, .size = 1  },
-	.sources	= &clk_src_epll,
-};
-
-static struct clk *clk_src_mpll_list[] = {
-	[0] = &clk_fin_mpll,
-	[1] = &clk_fout_mpll,
-};
-
-static struct clksrc_sources clk_src_mpll = {
-	.sources	= clk_src_mpll_list,
-	.nr_sources	= ARRAY_SIZE(clk_src_mpll_list),
-};
-
-static struct clksrc_clk clk_mout_mpll = {
-	.clk = {
-		.name		= "mout_mpll",
-	},
-	.reg_src	= { .reg = S3C_CLK_SRC, .shift = 1, .size = 1  },
-	.sources	= &clk_src_mpll,
-};
-
-static unsigned int armclk_mask;
-
-static unsigned long s3c64xx_clk_arm_get_rate(struct clk *clk)
-{
-	unsigned long rate = clk_get_rate(clk->parent);
-	u32 clkdiv;
-
-	/* divisor mask starts at bit0, so no need to shift */
-	clkdiv = __raw_readl(S3C_CLK_DIV0) & armclk_mask;
-
-	return rate / (clkdiv + 1);
-}
-
-static unsigned long s3c64xx_clk_arm_round_rate(struct clk *clk,
-						unsigned long rate)
-{
-	unsigned long parent = clk_get_rate(clk->parent);
-	u32 div;
-
-	if (parent < rate)
-		return parent;
-
-	div = (parent / rate) - 1;
-	if (div > armclk_mask)
-		div = armclk_mask;
-
-	return parent / (div + 1);
-}
-
-static int s3c64xx_clk_arm_set_rate(struct clk *clk, unsigned long rate)
-{
-	unsigned long parent = clk_get_rate(clk->parent);
-	u32 div;
-	u32 val;
-
-	if (rate < parent / (armclk_mask + 1))
-		return -EINVAL;
-
-	rate = clk_round_rate(clk, rate);
-	div = clk_get_rate(clk->parent) / rate;
-
-	val = __raw_readl(S3C_CLK_DIV0);
-	val &= ~armclk_mask;
-	val |= (div - 1);
-	__raw_writel(val, S3C_CLK_DIV0);
-
-	return 0;
-
-}
-
-static struct clk clk_arm = {
-	.name		= "armclk",
-	.parent		= &clk_mout_apll.clk,
-	.ops		= &(struct clk_ops) {
-		.get_rate	= s3c64xx_clk_arm_get_rate,
-		.set_rate	= s3c64xx_clk_arm_set_rate,
-		.round_rate	= s3c64xx_clk_arm_round_rate,
-	},
-};
-
-static unsigned long s3c64xx_clk_doutmpll_get_rate(struct clk *clk)
-{
-	unsigned long rate = clk_get_rate(clk->parent);
-
-	printk(KERN_DEBUG "%s: parent is %ld\n", __func__, rate);
-
-	if (__raw_readl(S3C_CLK_DIV0) & S3C6400_CLKDIV0_MPLL_MASK)
-		rate /= 2;
-
-	return rate;
-}
-
-static struct clk_ops clk_dout_ops = {
-	.get_rate	= s3c64xx_clk_doutmpll_get_rate,
-};
-
-static struct clk clk_dout_mpll = {
-	.name		= "dout_mpll",
-	.parent		= &clk_mout_mpll.clk,
-	.ops		= &clk_dout_ops,
-};
-
-static struct clk *clkset_spi_mmc_list[] = {
-	&clk_mout_epll.clk,
-	&clk_dout_mpll,
-	&clk_fin_epll,
-	&clk_27m,
-};
-
-static struct clksrc_sources clkset_spi_mmc = {
-	.sources	= clkset_spi_mmc_list,
-	.nr_sources	= ARRAY_SIZE(clkset_spi_mmc_list),
-};
-
-static struct clk *clkset_irda_list[] = {
-	&clk_mout_epll.clk,
-	&clk_dout_mpll,
-	NULL,
-	&clk_27m,
-};
-
-static struct clksrc_sources clkset_irda = {
-	.sources	= clkset_irda_list,
-	.nr_sources	= ARRAY_SIZE(clkset_irda_list),
-};
-
-static struct clk *clkset_uart_list[] = {
-	&clk_mout_epll.clk,
-	&clk_dout_mpll,
-	NULL,
-	NULL
-};
-
-static struct clksrc_sources clkset_uart = {
-	.sources	= clkset_uart_list,
-	.nr_sources	= ARRAY_SIZE(clkset_uart_list),
-};
-
-static struct clk *clkset_uhost_list[] = {
-	&clk_48m,
-	&clk_mout_epll.clk,
-	&clk_dout_mpll,
-	&clk_fin_epll,
-};
-
-static struct clksrc_sources clkset_uhost = {
-	.sources	= clkset_uhost_list,
-	.nr_sources	= ARRAY_SIZE(clkset_uhost_list),
-};
-
-/* The peripheral clocks are all controlled via clocksource followed
- * by an optional divider and gate stage. We currently roll this into
- * one clock which hides the intermediate clock from the mux.
- *
- * Note, the JPEG clock can only be an even divider...
- *
- * The scaler and LCD clocks depend on the S3C64XX version, and also
- * have a common parent divisor so are not included here.
- */
-
-/* clocks that feed other parts of the clock source tree */
-
-static struct clk clk_iis_cd0 = {
-	.name		= "iis_cdclk0",
-};
-
-static struct clk clk_iis_cd1 = {
-	.name		= "iis_cdclk1",
-};
-
-static struct clk clk_iisv4_cd = {
-	.name		= "iis_cdclk_v4",
-};
-
-static struct clk clk_pcm_cd = {
-	.name		= "pcm_cdclk",
-};
-
-static struct clk *clkset_audio0_list[] = {
-	[0] = &clk_mout_epll.clk,
-	[1] = &clk_dout_mpll,
-	[2] = &clk_fin_epll,
-	[3] = &clk_iis_cd0,
-	[4] = &clk_pcm_cd,
-};
-
-static struct clksrc_sources clkset_audio0 = {
-	.sources	= clkset_audio0_list,
-	.nr_sources	= ARRAY_SIZE(clkset_audio0_list),
-};
-
-static struct clk *clkset_audio1_list[] = {
-	[0] = &clk_mout_epll.clk,
-	[1] = &clk_dout_mpll,
-	[2] = &clk_fin_epll,
-	[3] = &clk_iis_cd1,
-	[4] = &clk_pcm_cd,
-};
-
-static struct clksrc_sources clkset_audio1 = {
-	.sources	= clkset_audio1_list,
-	.nr_sources	= ARRAY_SIZE(clkset_audio1_list),
-};
-
-#ifdef CONFIG_CPU_S3C6410
-static struct clk *clkset_audio2_list[] = {
-	[0] = &clk_mout_epll.clk,
-	[1] = &clk_dout_mpll,
-	[2] = &clk_fin_epll,
-	[3] = &clk_iisv4_cd,
-	[4] = &clk_pcm_cd,
-};
-
-static struct clksrc_sources clkset_audio2 = {
-	.sources	= clkset_audio2_list,
-	.nr_sources	= ARRAY_SIZE(clkset_audio2_list),
-};
-#endif
-
-static struct clksrc_clk clksrcs[] = {
-	{
-		.clk	= {
-			.name		= "usb-bus-host",
-			.ctrlbit        = S3C_CLKCON_SCLK_UHOST,
-			.enable		= s3c64xx_sclk_ctrl,
-		},
-		.reg_src 	= { .reg = S3C_CLK_SRC, .shift = 5, .size = 2  },
-		.reg_div	= { .reg = S3C_CLK_DIV1, .shift = 20, .size = 4  },
-		.sources	= &clkset_uhost,
-	}, {
-		.clk	= {
-			.name		= "irda-bus",
-			.ctrlbit        = S3C_CLKCON_SCLK_IRDA,
-			.enable		= s3c64xx_sclk_ctrl,
-		},
-		.reg_src	= { .reg = S3C_CLK_SRC, .shift = 24, .size = 2  },
-		.reg_div	= { .reg = S3C_CLK_DIV2, .shift = 20, .size = 4  },
-		.sources	= &clkset_irda,
-	}, {
-		.clk	= {
-			.name		= "camera",
-			.ctrlbit        = S3C_CLKCON_SCLK_CAM,
-			.enable		= s3c64xx_sclk_ctrl,
-			.parent		= &clk_h2,
-		},
-		.reg_div	= { .reg = S3C_CLK_DIV0, .shift = 20, .size = 4  },
-	},
-};
-
-/* Where does UCLK0 come from? */
-static struct clksrc_clk clk_sclk_uclk = {
-	.clk	= {
-		.name		= "uclk1",
-		.ctrlbit        = S3C_CLKCON_SCLK_UART,
-		.enable		= s3c64xx_sclk_ctrl,
-	},
-	.reg_src	= { .reg = S3C_CLK_SRC, .shift = 13, .size = 1  },
-	.reg_div	= { .reg = S3C_CLK_DIV2, .shift = 16, .size = 4  },
-	.sources	= &clkset_uart,
-};
-
-static struct clksrc_clk clk_sclk_mmc0 = {
-	.clk	= {
-		.name		= "mmc_bus",
-		.devname	= "s3c-sdhci.0",
-		.ctrlbit        = S3C_CLKCON_SCLK_MMC0,
-		.enable		= s3c64xx_sclk_ctrl,
-	},
-	.reg_src	= { .reg = S3C_CLK_SRC, .shift = 18, .size = 2  },
-	.reg_div	= { .reg = S3C_CLK_DIV1, .shift = 0, .size = 4  },
-	.sources	= &clkset_spi_mmc,
-};
-
-static struct clksrc_clk clk_sclk_mmc1 = {
-	.clk	= {
-		.name		= "mmc_bus",
-		.devname	= "s3c-sdhci.1",
-		.ctrlbit        = S3C_CLKCON_SCLK_MMC1,
-		.enable		= s3c64xx_sclk_ctrl,
-	},
-	.reg_src	= { .reg = S3C_CLK_SRC, .shift = 20, .size = 2  },
-	.reg_div	= { .reg = S3C_CLK_DIV1, .shift = 4, .size = 4  },
-	.sources	= &clkset_spi_mmc,
-};
-
-static struct clksrc_clk clk_sclk_mmc2 = {
-	.clk	= {
-		.name		= "mmc_bus",
-		.devname	= "s3c-sdhci.2",
-		.ctrlbit        = S3C_CLKCON_SCLK_MMC2,
-		.enable		= s3c64xx_sclk_ctrl,
-	},
-	.reg_src	= { .reg = S3C_CLK_SRC, .shift = 22, .size = 2  },
-	.reg_div	= { .reg = S3C_CLK_DIV1, .shift = 8, .size = 4  },
-	.sources	= &clkset_spi_mmc,
-};
-
-static struct clksrc_clk clk_sclk_spi0 = {
-	.clk	= {
-		.name		= "spi-bus",
-		.devname	= "s3c6410-spi.0",
-		.ctrlbit	= S3C_CLKCON_SCLK_SPI0,
-		.enable		= s3c64xx_sclk_ctrl,
-	},
-	.reg_src = { .reg = S3C_CLK_SRC, .shift = 14, .size = 2 },
-	.reg_div = { .reg = S3C_CLK_DIV2, .shift = 0, .size = 4 },
-	.sources = &clkset_spi_mmc,
-};
-
-static struct clksrc_clk clk_sclk_spi1 = {
-	.clk	= {
-		.name		= "spi-bus",
-		.devname	= "s3c6410-spi.1",
-		.ctrlbit	= S3C_CLKCON_SCLK_SPI1,
-		.enable		= s3c64xx_sclk_ctrl,
-	},
-	.reg_src = { .reg = S3C_CLK_SRC, .shift = 16, .size = 2 },
-	.reg_div = { .reg = S3C_CLK_DIV2, .shift = 4, .size = 4 },
-	.sources = &clkset_spi_mmc,
-};
-
-static struct clksrc_clk clk_audio_bus0 = {
-	.clk	= {
-		.name		= "audio-bus",
-		.devname	= "samsung-i2s.0",
-		.ctrlbit	= S3C_CLKCON_SCLK_AUDIO0,
-		.enable		= s3c64xx_sclk_ctrl,
-	},
-	.reg_src	= { .reg = S3C_CLK_SRC, .shift = 7, .size = 3  },
-	.reg_div	= { .reg = S3C_CLK_DIV2, .shift = 8, .size = 4  },
-	.sources	= &clkset_audio0,
-};
-
-static struct clksrc_clk clk_audio_bus1 = {
-	.clk	= {
-		.name		= "audio-bus",
-		.devname	= "samsung-i2s.1",
-		.ctrlbit	= S3C_CLKCON_SCLK_AUDIO1,
-		.enable		= s3c64xx_sclk_ctrl,
-	},
-	.reg_src	= { .reg = S3C_CLK_SRC, .shift = 10, .size = 3  },
-	.reg_div	= { .reg = S3C_CLK_DIV2, .shift = 12, .size = 4  },
-	.sources	= &clkset_audio1,
-};
-
-#ifdef CONFIG_CPU_S3C6410
-static struct clksrc_clk clk_audio_bus2 = {
-	.clk	= {
-		.name		= "audio-bus",
-		.devname	= "samsung-i2s.2",
-		.ctrlbit	= S3C6410_CLKCON_SCLK_AUDIO2,
-		.enable		= s3c64xx_sclk_ctrl,
-	},
-	.reg_src	= { .reg = S3C6410_CLK_SRC2, .shift = 0, .size = 3  },
-	.reg_div	= { .reg = S3C_CLK_DIV2, .shift = 24, .size = 4  },
-	.sources	= &clkset_audio2,
-};
-#endif
-/* Clock initialisation code */
-
-static struct clksrc_clk *init_parents[] = {
-	&clk_mout_apll,
-	&clk_mout_epll,
-	&clk_mout_mpll,
-};
-
-static struct clksrc_clk *clksrc_cdev[] = {
-	&clk_sclk_uclk,
-	&clk_sclk_mmc0,
-	&clk_sclk_mmc1,
-	&clk_sclk_mmc2,
-	&clk_sclk_spi0,
-	&clk_sclk_spi1,
-	&clk_audio_bus0,
-	&clk_audio_bus1,
-};
-
-static struct clk *clk_cdev[] = {
-	&clk_hsmmc0,
-	&clk_hsmmc1,
-	&clk_hsmmc2,
-	&clk_48m_spi0,
-	&clk_48m_spi1,
-	&clk_i2s0,
-	&clk_i2s1,
-};
-
-static struct clk_lookup s3c64xx_clk_lookup[] = {
-	CLKDEV_INIT(NULL, "clk_uart_baud2", &clk_p),
-	CLKDEV_INIT(NULL, "clk_uart_baud3", &clk_sclk_uclk.clk),
-	CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.0", &clk_hsmmc0),
-	CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.0", &clk_hsmmc1),
-	CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.0", &clk_hsmmc2),
-	CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &clk_sclk_mmc0.clk),
-	CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &clk_sclk_mmc1.clk),
-	CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &clk_sclk_mmc2.clk),
-	CLKDEV_INIT(NULL, "spi_busclk0", &clk_p),
-	CLKDEV_INIT("s3c6410-spi.0", "spi_busclk1", &clk_sclk_spi0.clk),
-	CLKDEV_INIT("s3c6410-spi.0", "spi_busclk2", &clk_48m_spi0),
-	CLKDEV_INIT("s3c6410-spi.1", "spi_busclk1", &clk_sclk_spi1.clk),
-	CLKDEV_INIT("s3c6410-spi.1", "spi_busclk2", &clk_48m_spi1),
-	CLKDEV_INIT("samsung-i2s.0", "i2s_opclk0", &clk_i2s0),
-	CLKDEV_INIT("samsung-i2s.0", "i2s_opclk1", &clk_audio_bus0.clk),
-	CLKDEV_INIT("samsung-i2s.1", "i2s_opclk0", &clk_i2s1),
-	CLKDEV_INIT("samsung-i2s.1", "i2s_opclk1", &clk_audio_bus1.clk),
-#ifdef CONFIG_CPU_S3C6410
-	CLKDEV_INIT("samsung-i2s.2", "i2s_opclk0", &clk_i2s2),
-	CLKDEV_INIT("samsung-i2s.2", "i2s_opclk1", &clk_audio_bus2.clk),
-#endif
-};
-
-#define GET_DIV(clk, field) ((((clk) & field##_MASK) >> field##_SHIFT) + 1)
-
-void __init_or_cpufreq s3c64xx_setup_clocks(void)
-{
-	struct clk *xtal_clk;
-	unsigned long xtal;
-	unsigned long fclk;
-	unsigned long hclk;
-	unsigned long hclk2;
-	unsigned long pclk;
-	unsigned long epll;
-	unsigned long apll;
-	unsigned long mpll;
-	unsigned int ptr;
-	u32 clkdiv0;
-
-	printk(KERN_DEBUG "%s: registering clocks\n", __func__);
-
-	clkdiv0 = __raw_readl(S3C_CLK_DIV0);
-	printk(KERN_DEBUG "%s: clkdiv0 = %08x\n", __func__, clkdiv0);
-
-	xtal_clk = clk_get(NULL, "xtal");
-	BUG_ON(IS_ERR(xtal_clk));
-
-	xtal = clk_get_rate(xtal_clk);
-	clk_put(xtal_clk);
-
-	printk(KERN_DEBUG "%s: xtal is %ld\n", __func__, xtal);
-
-	/* For now assume the mux always selects the crystal */
-	clk_ext_xtal_mux.parent = xtal_clk;
-
-	epll = s3c_get_pll6553x(xtal, __raw_readl(S3C_EPLL_CON0),
-				__raw_readl(S3C_EPLL_CON1));
-	mpll = s3c6400_get_pll(xtal, __raw_readl(S3C_MPLL_CON));
-	apll = s3c6400_get_pll(xtal, __raw_readl(S3C_APLL_CON));
-
-	fclk = mpll;
-
-	printk(KERN_INFO "S3C64XX: PLL settings, A=%ld, M=%ld, E=%ld\n",
-	       apll, mpll, epll);
-
-	if(__raw_readl(S3C64XX_OTHERS) & S3C64XX_OTHERS_SYNCMUXSEL)
-		/* Synchronous mode */
-		hclk2 = apll / GET_DIV(clkdiv0, S3C6400_CLKDIV0_HCLK2);
-	else
-		/* Asynchronous mode */
-		hclk2 = mpll / GET_DIV(clkdiv0, S3C6400_CLKDIV0_HCLK2);
-
-	hclk = hclk2 / GET_DIV(clkdiv0, S3C6400_CLKDIV0_HCLK);
-	pclk = hclk2 / GET_DIV(clkdiv0, S3C6400_CLKDIV0_PCLK);
-
-	printk(KERN_INFO "S3C64XX: HCLK2=%ld, HCLK=%ld, PCLK=%ld\n",
-	       hclk2, hclk, pclk);
-
-	clk_fout_mpll.rate = mpll;
-	clk_fout_epll.rate = epll;
-	clk_fout_apll.rate = apll;
-
-	clk_h2.rate = hclk2;
-	clk_h.rate = hclk;
-	clk_p.rate = pclk;
-	clk_f.rate = fclk;
-
-	for (ptr = 0; ptr < ARRAY_SIZE(init_parents); ptr++)
-		s3c_set_clksrc(init_parents[ptr], true);
-
-	for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++)
-		s3c_set_clksrc(&clksrcs[ptr], true);
-}
-
-static struct clk *clks1[] __initdata = {
-	&clk_ext_xtal_mux,
-	&clk_iis_cd0,
-	&clk_iis_cd1,
-	&clk_iisv4_cd,
-	&clk_pcm_cd,
-	&clk_mout_epll.clk,
-	&clk_mout_mpll.clk,
-	&clk_dout_mpll,
-	&clk_arm,
-};
-
-static struct clk *clks[] __initdata = {
-	&clk_ext,
-	&clk_epll,
-	&clk_27m,
-	&clk_48m,
-	&clk_h2,
-	&clk_xusbxti,
-};
-
-/**
- * s3c64xx_register_clocks - register clocks for s3c6400 and s3c6410
- * @xtal: The rate for the clock crystal feeding the PLLs.
- * @armclk_divlimit: Divisor mask for ARMCLK.
- *
- * Register the clocks for the S3C6400 and S3C6410 SoC range, such
- * as ARMCLK as well as the necessary parent clocks.
- *
- * This call does not setup the clocks, which is left to the
- * s3c64xx_setup_clocks() call which may be needed by the cpufreq
- * or resume code to re-set the clocks if the bootloader has changed
- * them.
- */
-void __init s3c64xx_register_clocks(unsigned long xtal, 
-				    unsigned armclk_divlimit)
-{
-	unsigned int cnt;
-
-	armclk_mask = armclk_divlimit;
-
-	s3c24xx_register_baseclocks(xtal);
-	s3c24xx_register_clocks(clks, ARRAY_SIZE(clks));
-
-	s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
-
-	s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
-	s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
-
-	s3c24xx_register_clocks(clk_cdev, ARRAY_SIZE(clk_cdev));
-	for (cnt = 0; cnt < ARRAY_SIZE(clk_cdev); cnt++)
-		s3c_disable_clocks(clk_cdev[cnt], 1);
-
-	s3c24xx_register_clocks(clks1, ARRAY_SIZE(clks1));
-	s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
-	for (cnt = 0; cnt < ARRAY_SIZE(clksrc_cdev); cnt++)
-		s3c_register_clksrc(clksrc_cdev[cnt], 1);
-	clkdev_add_table(s3c64xx_clk_lookup, ARRAY_SIZE(s3c64xx_clk_lookup));
-}
diff --git a/arch/arm/mach-s3c64xx/common.h b/arch/arm/mach-s3c64xx/common.h
index a2af0e1fdb00..bd3bd562011e 100644
--- a/arch/arm/mach-s3c64xx/common.h
+++ b/arch/arm/mach-s3c64xx/common.h
@@ -37,7 +37,6 @@ extern void s3c6400_init_irq(void);
 extern void s3c6400_map_io(void);
 
 #else
-#define s3c6400_init_clocks NULL
 #define s3c6400_map_io NULL
 #define s3c6400_init NULL
 #endif
@@ -49,7 +48,6 @@ extern void s3c6410_init_irq(void);
 extern void s3c6410_map_io(void);
 
 #else
-#define s3c6410_init_clocks NULL
 #define s3c6410_map_io NULL
 #define s3c6410_init NULL
 #endif
diff --git a/arch/arm/mach-s3c64xx/include/mach/regs-clock.h b/arch/arm/mach-s3c64xx/include/mach/regs-clock.h
index 05332b998ec0..4f44aac77092 100644
--- a/arch/arm/mach-s3c64xx/include/mach/regs-clock.h
+++ b/arch/arm/mach-s3c64xx/include/mach/regs-clock.h
@@ -15,145 +15,21 @@
 #ifndef __PLAT_REGS_CLOCK_H
 #define __PLAT_REGS_CLOCK_H __FILE__
 
+/*
+ * FIXME: Remove remaining definitions
+ */
+
 #define S3C_CLKREG(x)		(S3C_VA_SYS + (x))
 
-#define S3C_APLL_LOCK		S3C_CLKREG(0x00)
-#define S3C_MPLL_LOCK		S3C_CLKREG(0x04)
-#define S3C_EPLL_LOCK		S3C_CLKREG(0x08)
-#define S3C_APLL_CON		S3C_CLKREG(0x0C)
-#define S3C_MPLL_CON		S3C_CLKREG(0x10)
-#define S3C_EPLL_CON0		S3C_CLKREG(0x14)
-#define S3C_EPLL_CON1		S3C_CLKREG(0x18)
-#define S3C_CLK_SRC		S3C_CLKREG(0x1C)
-#define S3C_CLK_DIV0		S3C_CLKREG(0x20)
-#define S3C_CLK_DIV1		S3C_CLKREG(0x24)
-#define S3C_CLK_DIV2		S3C_CLKREG(0x28)
-#define S3C_CLK_OUT		S3C_CLKREG(0x2C)
-#define S3C_HCLK_GATE		S3C_CLKREG(0x30)
 #define S3C_PCLK_GATE		S3C_CLKREG(0x34)
-#define S3C_SCLK_GATE		S3C_CLKREG(0x38)
-#define S3C_MEM0_GATE		S3C_CLKREG(0x3C)
 #define S3C6410_CLK_SRC2	S3C_CLKREG(0x10C)
 #define S3C_MEM_SYS_CFG		S3C_CLKREG(0x120)
 
-/* CLKDIV0 */
-#define S3C6400_CLKDIV0_PCLK_MASK	(0xf << 12)
-#define S3C6400_CLKDIV0_PCLK_SHIFT	(12)
-#define S3C6400_CLKDIV0_HCLK2_MASK	(0x7 << 9)
-#define S3C6400_CLKDIV0_HCLK2_SHIFT	(9)
-#define S3C6400_CLKDIV0_HCLK_MASK	(0x1 << 8)
-#define S3C6400_CLKDIV0_HCLK_SHIFT	(8)
-#define S3C6400_CLKDIV0_MPLL_MASK	(0x1 << 4)
-#define S3C6400_CLKDIV0_MPLL_SHIFT	(4)
-
-#define S3C6400_CLKDIV0_ARM_MASK	(0x7 << 0)
-#define S3C6410_CLKDIV0_ARM_MASK	(0xf << 0)
-#define S3C6400_CLKDIV0_ARM_SHIFT	(0)
-
-/* HCLK GATE Registers */
-#define S3C_CLKCON_HCLK_3DSE	(1<<31)
-#define S3C_CLKCON_HCLK_UHOST	(1<<29)
-#define S3C_CLKCON_HCLK_SECUR	(1<<28)
-#define S3C_CLKCON_HCLK_SDMA1	(1<<27)
-#define S3C_CLKCON_HCLK_SDMA0	(1<<26)
-#define S3C_CLKCON_HCLK_IROM	(1<<25)
-#define S3C_CLKCON_HCLK_DDR1	(1<<24)
-#define S3C_CLKCON_HCLK_DDR0	(1<<23)
-#define S3C_CLKCON_HCLK_MEM1	(1<<22)
-#define S3C_CLKCON_HCLK_MEM0	(1<<21)
-#define S3C_CLKCON_HCLK_USB	(1<<20)
-#define S3C_CLKCON_HCLK_HSMMC2	(1<<19)
-#define S3C_CLKCON_HCLK_HSMMC1	(1<<18)
-#define S3C_CLKCON_HCLK_HSMMC0	(1<<17)
-#define S3C_CLKCON_HCLK_MDP	(1<<16)
-#define S3C_CLKCON_HCLK_DHOST	(1<<15)
-#define S3C_CLKCON_HCLK_IHOST	(1<<14)
-#define S3C_CLKCON_HCLK_DMA1	(1<<13)
-#define S3C_CLKCON_HCLK_DMA0	(1<<12)
-#define S3C_CLKCON_HCLK_JPEG	(1<<11)
-#define S3C_CLKCON_HCLK_CAMIF	(1<<10)
-#define S3C_CLKCON_HCLK_SCALER	(1<<9)
-#define S3C_CLKCON_HCLK_2D	(1<<8)
-#define S3C_CLKCON_HCLK_TV	(1<<7)
-#define S3C_CLKCON_HCLK_POST0	(1<<5)
-#define S3C_CLKCON_HCLK_ROT	(1<<4)
-#define S3C_CLKCON_HCLK_LCD	(1<<3)
-#define S3C_CLKCON_HCLK_TZIC	(1<<2)
-#define S3C_CLKCON_HCLK_INTC	(1<<1)
-#define S3C_CLKCON_HCLK_MFC	(1<<0)
-
 /* PCLK GATE Registers */
-#define S3C6410_CLKCON_PCLK_I2C1	(1<<27)
-#define S3C6410_CLKCON_PCLK_IIS2	(1<<26)
-#define S3C_CLKCON_PCLK_SKEY		(1<<24)
-#define S3C_CLKCON_PCLK_CHIPID		(1<<23)
-#define S3C_CLKCON_PCLK_SPI1		(1<<22)
-#define S3C_CLKCON_PCLK_SPI0		(1<<21)
-#define S3C_CLKCON_PCLK_HSIRX		(1<<20)
-#define S3C_CLKCON_PCLK_HSITX		(1<<19)
-#define S3C_CLKCON_PCLK_GPIO		(1<<18)
-#define S3C_CLKCON_PCLK_IIC		(1<<17)
-#define S3C_CLKCON_PCLK_IIS1		(1<<16)
-#define S3C_CLKCON_PCLK_IIS0		(1<<15)
-#define S3C_CLKCON_PCLK_AC97		(1<<14)
-#define S3C_CLKCON_PCLK_TZPC		(1<<13)
-#define S3C_CLKCON_PCLK_TSADC		(1<<12)
-#define S3C_CLKCON_PCLK_KEYPAD		(1<<11)
-#define S3C_CLKCON_PCLK_IRDA		(1<<10)
-#define S3C_CLKCON_PCLK_PCM1		(1<<9)
-#define S3C_CLKCON_PCLK_PCM0		(1<<8)
-#define S3C_CLKCON_PCLK_PWM		(1<<7)
-#define S3C_CLKCON_PCLK_RTC		(1<<6)
-#define S3C_CLKCON_PCLK_WDT		(1<<5)
 #define S3C_CLKCON_PCLK_UART3		(1<<4)
 #define S3C_CLKCON_PCLK_UART2		(1<<3)
 #define S3C_CLKCON_PCLK_UART1		(1<<2)
 #define S3C_CLKCON_PCLK_UART0		(1<<1)
-#define S3C_CLKCON_PCLK_MFC		(1<<0)
-
-/* SCLK GATE Registers */
-#define S3C_CLKCON_SCLK_UHOST		(1<<30)
-#define S3C_CLKCON_SCLK_MMC2_48		(1<<29)
-#define S3C_CLKCON_SCLK_MMC1_48		(1<<28)
-#define S3C_CLKCON_SCLK_MMC0_48		(1<<27)
-#define S3C_CLKCON_SCLK_MMC2		(1<<26)
-#define S3C_CLKCON_SCLK_MMC1		(1<<25)
-#define S3C_CLKCON_SCLK_MMC0		(1<<24)
-#define S3C_CLKCON_SCLK_SPI1_48 	(1<<23)
-#define S3C_CLKCON_SCLK_SPI0_48 	(1<<22)
-#define S3C_CLKCON_SCLK_SPI1		(1<<21)
-#define S3C_CLKCON_SCLK_SPI0		(1<<20)
-#define S3C_CLKCON_SCLK_DAC27		(1<<19)
-#define S3C_CLKCON_SCLK_TV27		(1<<18)
-#define S3C_CLKCON_SCLK_SCALER27	(1<<17)
-#define S3C_CLKCON_SCLK_SCALER		(1<<16)
-#define S3C_CLKCON_SCLK_LCD27		(1<<15)
-#define S3C_CLKCON_SCLK_LCD		(1<<14)
-#define S3C6400_CLKCON_SCLK_POST1_27	(1<<13)
-#define S3C6410_CLKCON_FIMC		(1<<13)
-#define S3C_CLKCON_SCLK_POST0_27	(1<<12)
-#define S3C6400_CLKCON_SCLK_POST1	(1<<11)
-#define S3C6410_CLKCON_SCLK_AUDIO2	(1<<11)
-#define S3C_CLKCON_SCLK_POST0		(1<<10)
-#define S3C_CLKCON_SCLK_AUDIO1		(1<<9)
-#define S3C_CLKCON_SCLK_AUDIO0		(1<<8)
-#define S3C_CLKCON_SCLK_SECUR		(1<<7)
-#define S3C_CLKCON_SCLK_IRDA		(1<<6)
-#define S3C_CLKCON_SCLK_UART		(1<<5)
-#define S3C_CLKCON_SCLK_ONENAND 	(1<<4)
-#define S3C_CLKCON_SCLK_MFC		(1<<3)
-#define S3C_CLKCON_SCLK_CAM		(1<<2)
-#define S3C_CLKCON_SCLK_JPEG		(1<<1)
-
-/* CLKSRC */
-
-#define S3C6400_CLKSRC_APLL_MOUT	(1 << 0)
-#define S3C6400_CLKSRC_MPLL_MOUT	(1 << 1)
-#define S3C6400_CLKSRC_EPLL_MOUT	(1 << 2)
-#define S3C6400_CLKSRC_APLL_MOUT_SHIFT	(0)
-#define S3C6400_CLKSRC_MPLL_MOUT_SHIFT	(1)
-#define S3C6400_CLKSRC_EPLL_MOUT_SHIFT	(2)
-#define S3C6400_CLKSRC_MFC		(1 << 4)
 
 /* MEM_SYS_CFG */
 #define MEM_SYS_CFG_INDEP_CF		0x4000
diff --git a/arch/arm/mach-s3c64xx/pm.c b/arch/arm/mach-s3c64xx/pm.c
index 6a1f91fea678..8cdb824a3b43 100644
--- a/arch/arm/mach-s3c64xx/pm.c
+++ b/arch/arm/mach-s3c64xx/pm.c
@@ -194,29 +194,8 @@ void s3c_pm_debug_smdkled(u32 set, u32 clear)
 #endif
 
 static struct sleep_save core_save[] = {
-	SAVE_ITEM(S3C_APLL_LOCK),
-	SAVE_ITEM(S3C_MPLL_LOCK),
-	SAVE_ITEM(S3C_EPLL_LOCK),
-	SAVE_ITEM(S3C_CLK_SRC),
-	SAVE_ITEM(S3C_CLK_DIV0),
-	SAVE_ITEM(S3C_CLK_DIV1),
-	SAVE_ITEM(S3C_CLK_DIV2),
-	SAVE_ITEM(S3C_CLK_OUT),
-	SAVE_ITEM(S3C_HCLK_GATE),
-	SAVE_ITEM(S3C_PCLK_GATE),
-	SAVE_ITEM(S3C_SCLK_GATE),
-	SAVE_ITEM(S3C_MEM0_GATE),
-
-	SAVE_ITEM(S3C_EPLL_CON1),
-	SAVE_ITEM(S3C_EPLL_CON0),
-
 	SAVE_ITEM(S3C64XX_MEM0DRVCON),
 	SAVE_ITEM(S3C64XX_MEM1DRVCON),
-
-#ifndef CONFIG_CPU_FREQ
-	SAVE_ITEM(S3C_APLL_CON),
-	SAVE_ITEM(S3C_MPLL_CON),
-#endif
 };
 
 static struct sleep_save misc_save[] = {
-- 
cgit 


From 81e9c1794f24376b0515756e300476d9fec77c0b Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Mon, 26 Aug 2013 02:37:24 +0900
Subject: irqchip: vic: Parse interrupt and resume masks from device tree

This patch extends vic_of_init to parse valid interrupt sources
and resume sources masks from device tree.

If mask values are not specified in device tree, all sources
are assumed to be valid, as before this patch.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 Documentation/devicetree/bindings/arm/vic.txt | 12 ++++++++++++
 drivers/irqchip/irq-vic.c                     |  7 ++++++-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/arm/vic.txt b/Documentation/devicetree/bindings/arm/vic.txt
index 266716b23437..dd527216c5fb 100644
--- a/Documentation/devicetree/bindings/arm/vic.txt
+++ b/Documentation/devicetree/bindings/arm/vic.txt
@@ -18,6 +18,15 @@ Required properties:
 Optional properties:
 
 - interrupts : Interrupt source for parent controllers if the VIC is nested.
+- valid-mask : A one cell big bit mask of valid interrupt sources. Each bit
+  represents single interrupt source, starting from source 0 at LSb and ending
+  at source 31 at MSb. A bit that is set means that the source is wired and
+  clear means otherwise. If unspecified, defaults to all valid.
+- valid-wakeup-mask : A one cell big bit mask of interrupt sources that can be
+  configured as wake up source for the system. Order of bits is the same as for
+  valid-mask property. A set bit means that this interrupt source can be
+  configured as a wake up source for the system. If unspecied, defaults to all
+  interrupt sources configurable as wake up sources.
 
 Example:
 
@@ -26,4 +35,7 @@ Example:
 		interrupt-controller;
 		#interrupt-cells = <1>;
 		reg = <0x60000 0x1000>;
+
+		valid-mask = <0xffffff7f>;
+		valid-wakeup-mask = <0x0000ff7f>;
 	};
diff --git a/drivers/irqchip/irq-vic.c b/drivers/irqchip/irq-vic.c
index 2bbb00404cf5..8e21ae0bab46 100644
--- a/drivers/irqchip/irq-vic.c
+++ b/drivers/irqchip/irq-vic.c
@@ -469,6 +469,8 @@ void __init vic_init(void __iomem *base, unsigned int irq_start,
 int __init vic_of_init(struct device_node *node, struct device_node *parent)
 {
 	void __iomem *regs;
+	u32 interrupt_mask = ~0;
+	u32 wakeup_mask = ~0;
 
 	if (WARN(parent, "non-root VICs are not supported"))
 		return -EINVAL;
@@ -477,10 +479,13 @@ int __init vic_of_init(struct device_node *node, struct device_node *parent)
 	if (WARN_ON(!regs))
 		return -EIO;
 
+	of_property_read_u32(node, "valid-mask", &interrupt_mask);
+	of_property_read_u32(node, "valid-wakeup-mask", &wakeup_mask);
+
 	/*
 	 * Passing 0 as first IRQ makes the simple domain allocate descriptors
 	 */
-	__vic_init(regs, 0, ~0, ~0, node);
+	__vic_init(regs, 0, interrupt_mask, wakeup_mask, node);
 
 	return 0;
 }
-- 
cgit 


From c836c90e276ec1b1b4193bb6f0b5e6b11cc69f83 Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Mon, 26 Aug 2013 02:37:34 +0900
Subject: ARM: S3C64XX: Bypass legacy initialization when booting with DT

This patch allows bypassing most of legacy initialization when booting
an S3C64xx-based board using device tree, by adding conditional checks
for DT presence to initcalls which are no longer necessary when booting
with DT..

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/mach-s3c64xx/common.c  | 12 ++++++++++++
 arch/arm/mach-s3c64xx/dma.c     |  9 +++++++++
 arch/arm/mach-s3c64xx/irq-pm.c  |  9 +++++++++
 arch/arm/mach-s3c64xx/s3c6400.c |  9 +++++++++
 arch/arm/mach-s3c64xx/s3c6410.c |  9 +++++++++
 arch/arm/plat-samsung/init.c    | 12 +++++++++++-
 6 files changed, 59 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-s3c64xx/common.c b/arch/arm/mach-s3c64xx/common.c
index 7d3cb58f1856..7a3ce4c39e5f 100644
--- a/arch/arm/mach-s3c64xx/common.c
+++ b/arch/arm/mach-s3c64xx/common.c
@@ -14,6 +14,10 @@
  * published by the Free Software Foundation.
  */
 
+/*
+ * NOTE: Code in this file is not used when booting with Device Tree support.
+ */
+
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/module.h>
@@ -203,6 +207,10 @@ void __init s3c64xx_init_io(struct map_desc *mach_desc, int size)
 
 static __init int s3c64xx_dev_init(void)
 {
+	/* Not applicable when using DT. */
+	if (of_have_populated_dt())
+		return 0;
+
 	subsys_system_register(&s3c64xx_subsys, NULL);
 	return device_register(&s3c64xx_dev);
 }
@@ -404,6 +412,10 @@ static int __init s3c64xx_init_irq_eint(void)
 {
 	int irq;
 
+	/* On DT-enabled systems EINTs are handled by pinctrl-s3c64xx driver. */
+	if (of_have_populated_dt())
+		return -ENODEV;
+
 	for (irq = IRQ_EINT(0); irq <= IRQ_EINT(27); irq++) {
 		irq_set_chip_and_handler(irq, &s3c_irq_eint, handle_level_irq);
 		irq_set_chip_data(irq, (void *)eint_irq_to_bit(irq));
diff --git a/arch/arm/mach-s3c64xx/dma.c b/arch/arm/mach-s3c64xx/dma.c
index c511dfaae148..7e22c2113816 100644
--- a/arch/arm/mach-s3c64xx/dma.c
+++ b/arch/arm/mach-s3c64xx/dma.c
@@ -12,6 +12,10 @@
  * published by the Free Software Foundation.
 */
 
+/*
+ * NOTE: Code in this file is not used when booting with Device Tree support.
+ */
+
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/interrupt.h>
@@ -24,6 +28,7 @@
 #include <linux/err.h>
 #include <linux/io.h>
 #include <linux/amba/pl080.h>
+#include <linux/of.h>
 
 #include <mach/dma.h>
 #include <mach/map.h>
@@ -726,6 +731,10 @@ static int __init s3c64xx_dma_init(void)
 {
 	int ret;
 
+	/* This driver is not supported when booting with device tree. */
+	if (of_have_populated_dt())
+		return -ENODEV;
+
 	printk(KERN_INFO "%s: Registering DMA channels\n", __func__);
 
 	dma_pool = dma_pool_create("DMA-LLI", NULL, sizeof(struct pl080s_lli), 16, 0);
diff --git a/arch/arm/mach-s3c64xx/irq-pm.c b/arch/arm/mach-s3c64xx/irq-pm.c
index c3da1b68d03e..1649c0d1c1b8 100644
--- a/arch/arm/mach-s3c64xx/irq-pm.c
+++ b/arch/arm/mach-s3c64xx/irq-pm.c
@@ -12,12 +12,17 @@
  * published by the Free Software Foundation.
  */
 
+/*
+ * NOTE: Code in this file is not used when booting with Device Tree support.
+ */
+
 #include <linux/kernel.h>
 #include <linux/syscore_ops.h>
 #include <linux/interrupt.h>
 #include <linux/serial_core.h>
 #include <linux/irq.h>
 #include <linux/io.h>
+#include <linux/of.h>
 
 #include <mach/map.h>
 
@@ -101,6 +106,10 @@ static struct syscore_ops s3c64xx_irq_syscore_ops = {
 
 static __init int s3c64xx_syscore_init(void)
 {
+	/* Appropriate drivers (pinctrl, uart) handle this when using DT. */
+	if (of_have_populated_dt())
+		return 0;
+
 	register_syscore_ops(&s3c64xx_irq_syscore_ops);
 
 	return 0;
diff --git a/arch/arm/mach-s3c64xx/s3c6400.c b/arch/arm/mach-s3c64xx/s3c6400.c
index 331fe8e58145..3db0c98222f7 100644
--- a/arch/arm/mach-s3c64xx/s3c6400.c
+++ b/arch/arm/mach-s3c64xx/s3c6400.c
@@ -9,6 +9,10 @@
  * published by the Free Software Foundation.
 */
 
+/*
+ * NOTE: Code in this file is not used when booting with Device Tree support.
+ */
+
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/interrupt.h>
@@ -20,6 +24,7 @@
 #include <linux/device.h>
 #include <linux/serial_core.h>
 #include <linux/platform_device.h>
+#include <linux/of.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -76,6 +81,10 @@ static struct device s3c6400_dev = {
 
 static int __init s3c6400_core_init(void)
 {
+	/* Not applicable when using DT. */
+	if (of_have_populated_dt())
+		return 0;
+
 	return subsys_system_register(&s3c6400_subsys, NULL);
 }
 
diff --git a/arch/arm/mach-s3c64xx/s3c6410.c b/arch/arm/mach-s3c64xx/s3c6410.c
index 7e6fa125584a..72b2278953a8 100644
--- a/arch/arm/mach-s3c64xx/s3c6410.c
+++ b/arch/arm/mach-s3c64xx/s3c6410.c
@@ -10,6 +10,10 @@
  * published by the Free Software Foundation.
 */
 
+/*
+ * NOTE: Code in this file is not used when booting with Device Tree support.
+ */
+
 #include <linux/kernel.h>
 #include <linux/types.h>
 #include <linux/interrupt.h>
@@ -21,6 +25,7 @@
 #include <linux/device.h>
 #include <linux/serial_core.h>
 #include <linux/platform_device.h>
+#include <linux/of.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -79,6 +84,10 @@ static struct device s3c6410_dev = {
 
 static int __init s3c6410_core_init(void)
 {
+	/* Not applicable when using DT. */
+	if (of_have_populated_dt())
+		return 0;
+
 	return subsys_system_register(&s3c6410_subsys, NULL);
 }
 
diff --git a/arch/arm/plat-samsung/init.c b/arch/arm/plat-samsung/init.c
index 50a3ea0037db..aa9511b6914a 100644
--- a/arch/arm/plat-samsung/init.c
+++ b/arch/arm/plat-samsung/init.c
@@ -11,12 +11,18 @@
  * published by the Free Software Foundation.
 */
 
+/*
+ * NOTE: Code in this file is not used on S3C64xx when booting with
+ * Device Tree support.
+ */
+
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/ioport.h>
 #include <linux/serial_core.h>
 #include <linux/platform_device.h>
+#include <linux/of.h>
 
 #include <mach/hardware.h>
 
@@ -148,8 +154,12 @@ static int __init s3c_arch_init(void)
 
 	// do the correct init for cpu
 
-	if (cpu == NULL)
+	if (cpu == NULL) {
+		/* Not needed when booting with device tree. */
+		if (of_have_populated_dt())
+			return 0;
 		panic("s3c_arch_init: NULL cpu\n");
+	}
 
 	ret = (cpu->init)();
 	if (ret != 0)
-- 
cgit 


From 608f9737f1bbe44428ecec44604f638b3949e12c Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Mon, 26 Aug 2013 02:37:41 +0900
Subject: gpio: samsung: Skip initialization if device tree is present

Since this driver does not handle GPIO on device tree enabled platforms
any more, it should be bypassed whenever device tree is available, to
not conflict with the new pinctrl-samsung driver.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 drivers/gpio/gpio-samsung.c | 34 +++++++---------------------------
 1 file changed, 7 insertions(+), 27 deletions(-)

diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c
index 358a21c2d811..29b5d6777dc5 100644
--- a/drivers/gpio/gpio-samsung.c
+++ b/drivers/gpio/gpio-samsung.c
@@ -2082,34 +2082,14 @@ static __init int samsung_gpiolib_init(void)
 	int i, nr_chips;
 	int group = 0;
 
-#if defined(CONFIG_PINCTRL_EXYNOS) || defined(CONFIG_PINCTRL_EXYNOS5440)
 	/*
-	* This gpio driver includes support for device tree support and there
-	* are platforms using it. In order to maintain compatibility with those
-	* platforms, and to allow non-dt Exynos4210 platforms to use this
-	* gpiolib support, a check is added to find out if there is a active
-	* pin-controller driver support available. If it is available, this
-	* gpiolib support is ignored and the gpiolib support available in
-	* pin-controller driver is used. This is a temporary check and will go
-	* away when all of the Exynos4210 platforms have switched to using
-	* device tree and the pin-ctrl driver.
-	*/
-	struct device_node *pctrl_np;
-	static const struct of_device_id exynos_pinctrl_ids[] = {
-		{ .compatible = "samsung,s3c2412-pinctrl", },
-		{ .compatible = "samsung,s3c2416-pinctrl", },
-		{ .compatible = "samsung,s3c2440-pinctrl", },
-		{ .compatible = "samsung,s3c2450-pinctrl", },
-		{ .compatible = "samsung,exynos4210-pinctrl", },
-		{ .compatible = "samsung,exynos4x12-pinctrl", },
-		{ .compatible = "samsung,exynos5250-pinctrl", },
-		{ .compatible = "samsung,exynos5440-pinctrl", },
-		{ }
-	};
-	for_each_matching_node(pctrl_np, exynos_pinctrl_ids)
-		if (pctrl_np && of_device_is_available(pctrl_np))
-			return -ENODEV;
-#endif
+	 * Currently there are two drivers that can provide GPIO support for
+	 * Samsung SoCs. For device tree enabled platforms, the new
+	 * pinctrl-samsung driver is used, providing both GPIO and pin control
+	 * interfaces. For legacy (non-DT) platforms this driver is used.
+	 */
+	if (of_have_populated_dt())
+		return -ENODEV;
 
 	samsung_gpiolib_set_cfg(samsung_gpio_cfgs, ARRAY_SIZE(samsung_gpio_cfgs));
 
-- 
cgit 


From 31e4001d2e3c3f2d3b544c9891d542ee3502798e Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Mon, 26 Aug 2013 02:37:51 +0900
Subject: ARM: S3C64XX: Add board file for boot using Device Tree

This patch adds board file that will be used to boot S3C64xx-based boards
using Device Tree.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/mach-s3c64xx/Kconfig           | 16 +++++++
 arch/arm/mach-s3c64xx/Makefile          |  1 +
 arch/arm/mach-s3c64xx/mach-s3c64xx-dt.c | 85 +++++++++++++++++++++++++++++++++
 3 files changed, 102 insertions(+)
 create mode 100644 arch/arm/mach-s3c64xx/mach-s3c64xx-dt.c

diff --git a/arch/arm/mach-s3c64xx/Kconfig b/arch/arm/mach-s3c64xx/Kconfig
index 041da5172423..bd14e3a37128 100644
--- a/arch/arm/mach-s3c64xx/Kconfig
+++ b/arch/arm/mach-s3c64xx/Kconfig
@@ -306,3 +306,19 @@ config MACH_WLF_CRAGG_6410
 	select SAMSUNG_GPIO_EXTRA128
 	help
 	  Machine support for the Wolfson Cragganmore S3C6410 variant.
+
+config MACH_S3C64XX_DT
+	bool "Samsung S3C6400/S3C6410 machine using Device Tree"
+	select CLKSRC_OF
+	select CPU_S3C6400
+	select CPU_S3C6410
+	select PINCTRL
+	select PINCTRL_S3C64XX
+	select USE_OF
+	help
+	  Machine support for Samsung S3C6400/S3C6410 machines with Device Tree
+	  enabled.
+	  Select this if a fdt blob is available for your S3C64XX SoC based
+	  board.
+	  Note: This is under development and not all peripherals can be
+	  supported with this machine file.
diff --git a/arch/arm/mach-s3c64xx/Makefile b/arch/arm/mach-s3c64xx/Makefile
index 645a8fe55f8d..6faedcffce04 100644
--- a/arch/arm/mach-s3c64xx/Makefile
+++ b/arch/arm/mach-s3c64xx/Makefile
@@ -57,3 +57,4 @@ obj-$(CONFIG_MACH_SMARTQ7)		+= mach-smartq7.o
 obj-$(CONFIG_MACH_SMDK6400)		+= mach-smdk6400.o
 obj-$(CONFIG_MACH_SMDK6410)		+= mach-smdk6410.o
 obj-$(CONFIG_MACH_WLF_CRAGG_6410)	+= mach-crag6410.o mach-crag6410-module.o
+obj-$(CONFIG_MACH_S3C64XX_DT)		+= mach-s3c64xx-dt.o
diff --git a/arch/arm/mach-s3c64xx/mach-s3c64xx-dt.c b/arch/arm/mach-s3c64xx/mach-s3c64xx-dt.c
new file mode 100644
index 000000000000..7eb9a10fc1af
--- /dev/null
+++ b/arch/arm/mach-s3c64xx/mach-s3c64xx-dt.c
@@ -0,0 +1,85 @@
+/*
+ * Samsung's S3C64XX flattened device tree enabled machine
+ *
+ * Copyright (c) 2013 Tomasz Figa <tomasz.figa@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/clk-provider.h>
+#include <linux/irqchip.h>
+#include <linux/of_platform.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/system_misc.h>
+
+#include <plat/cpu.h>
+#include <plat/watchdog-reset.h>
+
+#include <mach/map.h>
+
+#include "common.h"
+
+/*
+ * IO mapping for shared system controller IP.
+ *
+ * FIXME: Make remaining drivers use dynamic mapping.
+ */
+static struct map_desc s3c64xx_dt_iodesc[] __initdata = {
+	{
+		.virtual	= (unsigned long)S3C_VA_SYS,
+		.pfn		= __phys_to_pfn(S3C64XX_PA_SYSCON),
+		.length		= SZ_4K,
+		.type		= MT_DEVICE,
+	},
+};
+
+static void __init s3c64xx_dt_map_io(void)
+{
+	debug_ll_io_init();
+	iotable_init(s3c64xx_dt_iodesc, ARRAY_SIZE(s3c64xx_dt_iodesc));
+
+	s3c64xx_init_cpu();
+
+	if (!soc_is_s3c64xx())
+		panic("SoC is not S3C64xx!");
+}
+
+static void __init s3c64xx_dt_init_irq(void)
+{
+	of_clk_init(NULL);
+	samsung_wdt_reset_of_init();
+	irqchip_init();
+};
+
+static void __init s3c64xx_dt_init_machine(void)
+{
+	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+}
+
+static void s3c64xx_dt_restart(enum reboot_mode mode, const char *cmd)
+{
+	if (mode != REBOOT_SOFT)
+		samsung_wdt_reset();
+
+	/* if all else fails, or mode was for soft, jump to 0 */
+	soft_restart(0);
+}
+
+static char const *s3c64xx_dt_compat[] __initdata = {
+	"samsung,s3c6400",
+	"samsung,s3c6410",
+	NULL
+};
+
+DT_MACHINE_START(S3C6400_DT, "Samsung S3C64xx (Flattened Device Tree)")
+	/* Maintainer: Tomasz Figa <tomasz.figa@gmail.com> */
+	.dt_compat	= s3c64xx_dt_compat,
+	.map_io		= s3c64xx_dt_map_io,
+	.init_irq	= s3c64xx_dt_init_irq,
+	.init_machine	= s3c64xx_dt_init_machine,
+	.restart        = s3c64xx_dt_restart,
+MACHINE_END
-- 
cgit 


From 4961cfd508357bf7c3d9c0198cdfc471724fb75f Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Mon, 26 Aug 2013 02:37:59 +0900
Subject: ARM: dts: Add basic dts include files for Samsung S3C64xx SoCs

This patch adds basic device tree definitions for Samsung S3C64xx SoCs.

Since all the SoCs in the series are very similar, the files are created
hierarchically - one file for the whole series and then separate files
for particular SoCs including the common one.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/boot/dts/s3c6400.dtsi         |  41 ++
 arch/arm/boot/dts/s3c6410.dtsi         |  57 +++
 arch/arm/boot/dts/s3c64xx-pinctrl.dtsi | 687 +++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/s3c64xx.dtsi         | 199 ++++++++++
 4 files changed, 984 insertions(+)
 create mode 100644 arch/arm/boot/dts/s3c6400.dtsi
 create mode 100644 arch/arm/boot/dts/s3c6410.dtsi
 create mode 100644 arch/arm/boot/dts/s3c64xx-pinctrl.dtsi
 create mode 100644 arch/arm/boot/dts/s3c64xx.dtsi

diff --git a/arch/arm/boot/dts/s3c6400.dtsi b/arch/arm/boot/dts/s3c6400.dtsi
new file mode 100644
index 000000000000..a7d1c8ec150d
--- /dev/null
+++ b/arch/arm/boot/dts/s3c6400.dtsi
@@ -0,0 +1,41 @@
+/*
+ * Samsung's S3C6400 SoC device tree source
+ *
+ * Copyright (c) 2013 Tomasz Figa <tomasz.figa@gmail.com>
+ *
+ * Samsung's S3C6400 SoC device nodes are listed in this file. S3C6400
+ * based board files can include this file and provide values for board specfic
+ * bindings.
+ *
+ * Note: This file does not include device nodes for all the controllers in
+ * S3C6400 SoC. As device tree coverage for S3C6400 increases, additional
+ * nodes can be added to this file.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include "s3c64xx.dtsi"
+
+/ {
+	compatible = "samsung,s3c6400";
+};
+
+&vic0 {
+	valid-mask = <0xfffffe1f>;
+	valid-wakeup-mask = <0x00200004>;
+};
+
+&vic1 {
+	valid-mask = <0xffffffff>;
+	valid-wakeup-mask = <0x53020000>;
+};
+
+&soc {
+	clocks: clock-controller@7e00f000 {
+		compatible = "samsung,s3c6400-clock";
+		reg = <0x7e00f000 0x1000>;
+		#clock-cells = <1>;
+	};
+};
diff --git a/arch/arm/boot/dts/s3c6410.dtsi b/arch/arm/boot/dts/s3c6410.dtsi
new file mode 100644
index 000000000000..eb4226b3407c
--- /dev/null
+++ b/arch/arm/boot/dts/s3c6410.dtsi
@@ -0,0 +1,57 @@
+/*
+ * Samsung's S3C6410 SoC device tree source
+ *
+ * Copyright (c) 2013 Tomasz Figa <tomasz.figa@gmail.com>
+ *
+ * Samsung's S3C6410 SoC device nodes are listed in this file. S3C6410
+ * based board files can include this file and provide values for board specfic
+ * bindings.
+ *
+ * Note: This file does not include device nodes for all the controllers in
+ * S3C6410 SoC. As device tree coverage for S3C6410 increases, additional
+ * nodes can be added to this file.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include "s3c64xx.dtsi"
+
+/ {
+	compatible = "samsung,s3c6410";
+
+	aliases {
+		i2c1 = &i2c1;
+	};
+};
+
+&vic0 {
+	valid-mask = <0xffffff7f>;
+	valid-wakeup-mask = <0x00200004>;
+};
+
+&vic1 {
+	valid-mask = <0xffffffff>;
+	valid-wakeup-mask = <0x53020000>;
+};
+
+&soc {
+	clocks: clock-controller@7e00f000 {
+		compatible = "samsung,s3c6410-clock";
+		reg = <0x7e00f000 0x1000>;
+		#clock-cells = <1>;
+	};
+
+	i2c1: i2c@7f00f000 {
+		compatible = "samsung,s3c2440-i2c";
+		reg = <0x7f00f000 0x1000>;
+		interrupt-parent = <&vic0>;
+		interrupts = <5>;
+		clock-names = "i2c";
+		clocks = <&clocks PCLK_IIC1>;
+		status = "disabled";
+		#address-cells = <1>;
+		#size-cells = <0>;
+	};
+};
diff --git a/arch/arm/boot/dts/s3c64xx-pinctrl.dtsi b/arch/arm/boot/dts/s3c64xx-pinctrl.dtsi
new file mode 100644
index 000000000000..b1197d8b04de
--- /dev/null
+++ b/arch/arm/boot/dts/s3c64xx-pinctrl.dtsi
@@ -0,0 +1,687 @@
+/*
+ * Samsung's S3C64xx SoC series common device tree source
+ * - pin control-related definitions
+ *
+ * Copyright (c) 2013 Tomasz Figa <tomasz.figa@gmail.com>
+ *
+ * Samsung's S3C64xx SoCs pin banks, pin-mux and pin-config options are
+ * listed as device tree nodes in this file.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#define PIN_PULL_NONE	0
+#define PIN_PULL_DOWN	1
+#define PIN_PULL_UP	2
+
+&pinctrl0 {
+	/*
+	 * Pin banks
+	 */
+
+	gpa: gpa {
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+	};
+
+	gpb: gpb {
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+	};
+
+	gpc: gpc {
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+	};
+
+	gpd: gpd {
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+	};
+
+	gpe: gpe {
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
+	gpf: gpf {
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+	};
+
+	gpg: gpg {
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+	};
+
+	gph: gph {
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+	};
+
+	gpi: gpi {
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
+	gpj: gpj {
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
+	gpk: gpk {
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
+	gpl: gpl {
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+	};
+
+	gpm: gpm {
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+	};
+
+	gpn: gpn {
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+	};
+
+	gpo: gpo {
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+	};
+
+	gpp: gpp {
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+	};
+
+	gpq: gpq {
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+	};
+
+	/*
+	 * Pin groups
+	 */
+
+	uart0_data: uart0-data {
+		samsung,pins = "gpa-0", "gpa-1";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	uart0_fctl: uart0-fctl {
+		samsung,pins = "gpa-2", "gpa-3";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	uart1_data: uart1-data {
+		samsung,pins = "gpa-4", "gpa-5";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	uart1_fctl: uart1-fctl {
+		samsung,pins = "gpa-6", "gpa-7";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	uart2_data: uart2-data {
+		samsung,pins = "gpb-0", "gpb-1";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	uart3_data: uart3-data {
+		samsung,pins = "gpb-2", "gpb-3";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	ext_dma_0: ext-dma-0 {
+		samsung,pins = "gpb-0", "gpb-1";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	ext_dma_1: ext-dma-1 {
+		samsung,pins = "gpb-2", "gpb-3";
+		samsung,pin-function = <4>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	irda_data_0: irda-data-0 {
+		samsung,pins = "gpb-0", "gpb-1";
+		samsung,pin-function = <4>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	irda_data_1: irda-data-1 {
+		samsung,pins = "gpb-2", "gpb-3";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	irda_sdbw: irda-sdbw {
+		samsung,pins = "gpb-4";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	i2c0_bus: i2c0-bus {
+		samsung,pins = "gpb-5", "gpb-6";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_UP>;
+	};
+
+	i2c1_bus: i2c1-bus {
+		/* S3C6410-only */
+		samsung,pins = "gpb-2", "gpb-3";
+		samsung,pin-function = <6>;
+		samsung,pin-pud = <PIN_PULL_UP>;
+	};
+
+	spi0_bus: spi0-bus {
+		samsung,pins = "gpc-0", "gpc-1", "gpc-2";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_UP>;
+	};
+
+	spi0_cs: spi0-cs {
+		samsung,pins = "gpc-3";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	spi1_bus: spi1-bus {
+		samsung,pins = "gpc-4", "gpc-5", "gpc-6";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_UP>;
+	};
+
+	spi1_cs: spi1-cs {
+		samsung,pins = "gpc-7";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	sd0_cmd: sd0-cmd {
+		samsung,pins = "gpg-1";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	sd0_clk: sd0-clk {
+		samsung,pins = "gpg-0";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	sd0_bus1: sd0-bus1 {
+		samsung,pins = "gpg-2";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	sd0_bus4: sd0-bus4 {
+		samsung,pins = "gpg-2", "gpg-3", "gpg-4", "gpg-5";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	sd0_cd: sd0-cd {
+		samsung,pins = "gpg-6";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_UP>;
+	};
+
+	sd1_cmd: sd1-cmd {
+		samsung,pins = "gph-1";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	sd1_clk: sd1-clk {
+		samsung,pins = "gph-0";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	sd1_bus1: sd1-bus1 {
+		samsung,pins = "gph-2";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	sd1_bus4: sd1-bus4 {
+		samsung,pins = "gph-2", "gph-3", "gph-4", "gph-5";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	sd1_bus8: sd1-bus8 {
+		samsung,pins = "gph-2", "gph-3", "gph-4", "gph-5",
+				"gph-6", "gph-7", "gph-8", "gph-9";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	sd1_cd: sd1-cd {
+		samsung,pins = "gpg-6";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_UP>;
+	};
+
+	sd2_cmd: sd2-cmd {
+		samsung,pins = "gpc-4";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	sd2_clk: sd2-clk {
+		samsung,pins = "gpc-5";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	sd2_bus1: sd2-bus1 {
+		samsung,pins = "gph-6";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	sd2_bus4: sd2-bus4 {
+		samsung,pins = "gph-6", "gph-7", "gph-8", "gph-9";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	i2s0_bus: i2s0-bus {
+		samsung,pins = "gpd-0", "gpd-2", "gpd-3", "gpd-4";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	i2s0_cdclk: i2s0-cdclk {
+		samsung,pins = "gpd-1";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	i2s1_bus: i2s1-bus {
+		samsung,pins = "gpe-0", "gpe-2", "gpe-3", "gpe-4";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	i2s1_cdclk: i2s1-cdclk {
+		samsung,pins = "gpe-1";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	i2s2_bus: i2s2-bus {
+		/* S3C6410-only */
+		samsung,pins = "gpc-4", "gpc-5", "gpc-6", "gph-6",
+				"gph-8", "gph-9";
+		samsung,pin-function = <5>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	i2s2_cdclk: i2s2-cdclk {
+		/* S3C6410-only */
+		samsung,pins = "gph-7";
+		samsung,pin-function = <5>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	pcm0_bus: pcm0-bus {
+		samsung,pins = "gpd-0", "gpd-2", "gpd-3", "gpd-4";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	pcm0_extclk: pcm0-extclk {
+		samsung,pins = "gpd-1";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	pcm1_bus: pcm1-bus {
+		samsung,pins = "gpe-0", "gpe-2", "gpe-3", "gpe-4";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	pcm1_extclk: pcm1-extclk {
+		samsung,pins = "gpe-1";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	ac97_bus_0: ac97-bus-0 {
+		samsung,pins = "gpd-0", "gpd-1", "gpd-2", "gpd-3", "gpd-4";
+		samsung,pin-function = <4>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	ac97_bus_1: ac97-bus-1 {
+		samsung,pins = "gpe-0", "gpe-1", "gpe-2", "gpe-3", "gpe-4";
+		samsung,pin-function = <4>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	cam_port: cam-port {
+		samsung,pins = "gpf-0", "gpf-1", "gpf-2", "gpf-4",
+				"gpf-5", "gpf-6", "gpf-7", "gpf-8",
+				"gpf-9", "gpf-10", "gpf-11", "gpf-12";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	cam_rst: cam-rst {
+		samsung,pins = "gpf-3";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	cam_field: cam-field {
+		/* S3C6410-only */
+		samsung,pins = "gpb-4";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	pwm_extclk: pwm-extclk {
+		samsung,pins = "gpf-13";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	pwm0_out: pwm0-out {
+		samsung,pins = "gpf-14";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	pwm1_out: pwm1-out {
+		samsung,pins = "gpf-15";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	clkout0: clkout-0 {
+		samsung,pins = "gpf-14";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_col0_0: keypad-col0-0 {
+		samsung,pins = "gph-0";
+		samsung,pin-function = <4>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_col1_0: keypad-col1-0 {
+		samsung,pins = "gph-1";
+		samsung,pin-function = <4>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_col2_0: keypad-col2-0 {
+		samsung,pins = "gph-2";
+		samsung,pin-function = <4>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_col3_0: keypad-col3-0 {
+		samsung,pins = "gph-3";
+		samsung,pin-function = <4>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_col4_0: keypad-col4-0 {
+		samsung,pins = "gph-4";
+		samsung,pin-function = <4>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_col5_0: keypad-col5-0 {
+		samsung,pins = "gph-5";
+		samsung,pin-function = <4>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_col6_0: keypad-col6-0 {
+		samsung,pins = "gph-6";
+		samsung,pin-function = <4>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_col7_0: keypad-col7-0 {
+		samsung,pins = "gph-7";
+		samsung,pin-function = <4>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_col0_1: keypad-col0-1 {
+		samsung,pins = "gpl-0";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_col1_1: keypad-col1-1 {
+		samsung,pins = "gpl-1";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_col2_1: keypad-col2-1 {
+		samsung,pins = "gpl-2";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_col3_1: keypad-col3-1 {
+		samsung,pins = "gpl-3";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_col4_1: keypad-col4-1 {
+		samsung,pins = "gpl-4";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_col5_1: keypad-col5-1 {
+		samsung,pins = "gpl-5";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_col6_1: keypad-col6-1 {
+		samsung,pins = "gpl-6";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_col7_1: keypad-col7-1 {
+		samsung,pins = "gpl-7";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_row0_0: keypad-row0-0 {
+		samsung,pins = "gpk-8";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_row1_0: keypad-row1-0 {
+		samsung,pins = "gpk-9";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_row2_0: keypad-row2-0 {
+		samsung,pins = "gpk-10";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_row3_0: keypad-row3-0 {
+		samsung,pins = "gpk-11";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_row4_0: keypad-row4-0 {
+		samsung,pins = "gpk-12";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_row5_0: keypad-row5-0 {
+		samsung,pins = "gpk-13";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_row6_0: keypad-row6-0 {
+		samsung,pins = "gpk-14";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_row7_0: keypad-row7-0 {
+		samsung,pins = "gpk-15";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_row0_1: keypad-row0-1 {
+		samsung,pins = "gpn-0";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_row1_1: keypad-row1-1 {
+		samsung,pins = "gpn-1";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_row2_1: keypad-row2-1 {
+		samsung,pins = "gpn-2";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_row3_1: keypad-row3-1 {
+		samsung,pins = "gpn-3";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_row4_1: keypad-row4-1 {
+		samsung,pins = "gpn-4";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_row5_1: keypad-row5-1 {
+		samsung,pins = "gpn-5";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_row6_1: keypad-row6-1 {
+		samsung,pins = "gpn-6";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	keypad_row7_1: keypad-row7-1 {
+		samsung,pins = "gpn-7";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	lcd_ctrl: lcd-ctrl {
+		samsung,pins = "gpj-8", "gpj-9", "gpj-10", "gpj-11";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	lcd_data16: lcd-data-width16 {
+		samsung,pins = "gpi-3", "gpi-4", "gpi-5", "gpi-6",
+				"gpi-7", "gpi-10", "gpi-11", "gpi-12",
+				"gpi-13", "gpi-14", "gpi-15", "gpj-3",
+				"gpj-4", "gpj-5", "gpj-6", "gpj-7";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	lcd_data18: lcd-data-width18 {
+		samsung,pins = "gpi-2", "gpi-3", "gpi-4", "gpi-5",
+				"gpi-6", "gpi-7", "gpi-10", "gpi-11",
+				"gpi-12", "gpi-13", "gpi-14", "gpi-15",
+				"gpj-2", "gpj-3", "gpj-4", "gpj-5",
+				"gpj-6", "gpj-7";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	lcd_data24: lcd-data-width24 {
+		samsung,pins = "gpi-0", "gpi-1", "gpi-2", "gpi-3",
+				"gpi-4", "gpi-5", "gpi-6", "gpi-7",
+				"gpi-8", "gpi-9", "gpi-10", "gpi-11",
+				"gpi-12", "gpi-13", "gpi-14", "gpi-15",
+				"gpj-0", "gpj-1", "gpj-2", "gpj-3",
+				"gpj-4", "gpj-5", "gpj-6", "gpj-7";
+		samsung,pin-function = <2>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	hsi_bus: hsi-bus {
+		samsung,pins = "gpk-0", "gpk-1", "gpk-2", "gpk-3",
+				"gpk-4", "gpk-5", "gpk-6", "gpk-7";
+		samsung,pin-function = <3>;
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+};
diff --git a/arch/arm/boot/dts/s3c64xx.dtsi b/arch/arm/boot/dts/s3c64xx.dtsi
new file mode 100644
index 000000000000..4e3be4d3493d
--- /dev/null
+++ b/arch/arm/boot/dts/s3c64xx.dtsi
@@ -0,0 +1,199 @@
+/*
+ * Samsung's S3C64xx SoC series common device tree source
+ *
+ * Copyright (c) 2013 Tomasz Figa <tomasz.figa@gmail.com>
+ *
+ * Samsung's S3C64xx SoC series device nodes are listed in this file.
+ * Particular SoCs from S3C64xx series can include this file and provide
+ * values for SoCs specfic bindings.
+ *
+ * Note: This file does not include device nodes for all the controllers in
+ * S3C64xx SoCs. As device tree coverage for S3C64xx increases, additional
+ * nodes can be added to this file.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "skeleton.dtsi"
+#include <dt-bindings/clock/samsung,s3c64xx-clock.h>
+
+/ {
+	aliases {
+		i2c0 = &i2c0;
+		pinctrl0 = &pinctrl0;
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,arm1176jzf-s", "arm,arm1176";
+			reg = <0x0>;
+		};
+	};
+
+	soc: soc {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		vic0: interrupt-controller@71200000 {
+			compatible = "arm,pl192-vic";
+			interrupt-controller;
+			reg = <0x71200000 0x1000>;
+			#interrupt-cells = <1>;
+		};
+
+		vic1: interrupt-controller@71300000 {
+			compatible = "arm,pl192-vic";
+			interrupt-controller;
+			reg = <0x71300000 0x1000>;
+			#interrupt-cells = <1>;
+		};
+
+		sdhci0: sdhci@7c200000 {
+			compatible = "samsung,s3c6410-sdhci";
+			reg = <0x7c200000 0x100>;
+			interrupt-parent = <&vic1>;
+			interrupts = <24>;
+			clock-names = "hsmmc", "mmc_busclk.0", "mmc_busclk.2";
+			clocks = <&clocks HCLK_HSMMC0>, <&clocks HCLK_HSMMC0>,
+					<&clocks SCLK_MMC0>;
+			status = "disabled";
+		};
+
+		sdhci1: sdhci@7c300000 {
+			compatible = "samsung,s3c6410-sdhci";
+			reg = <0x7c300000 0x100>;
+			interrupt-parent = <&vic1>;
+			interrupts = <25>;
+			clock-names = "hsmmc", "mmc_busclk.0", "mmc_busclk.2";
+			clocks = <&clocks HCLK_HSMMC1>, <&clocks HCLK_HSMMC1>,
+					<&clocks SCLK_MMC1>;
+			status = "disabled";
+		};
+
+		sdhci2: sdhci@7c400000 {
+			compatible = "samsung,s3c6410-sdhci";
+			reg = <0x7c400000 0x100>;
+			interrupt-parent = <&vic1>;
+			interrupts = <17>;
+			clock-names = "hsmmc", "mmc_busclk.0", "mmc_busclk.2";
+			clocks = <&clocks HCLK_HSMMC2>, <&clocks HCLK_HSMMC2>,
+					<&clocks SCLK_MMC2>;
+			status = "disabled";
+		};
+
+		watchdog: watchdog@7e004000 {
+			compatible = "samsung,s3c2410-wdt";
+			reg = <0x7e004000 0x1000>;
+			interrupt-parent = <&vic0>;
+			interrupts = <26>;
+			clock-names = "watchdog";
+			clocks = <&clocks PCLK_WDT>;
+			status = "disabled";
+		};
+
+		i2c0: i2c@7f004000 {
+			compatible = "samsung,s3c2440-i2c";
+			reg = <0x7f004000 0x1000>;
+			interrupt-parent = <&vic1>;
+			interrupts = <18>;
+			clock-names = "i2c";
+			clocks = <&clocks PCLK_IIC0>;
+			status = "disabled";
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+
+		uart0: serial@7f005000 {
+			compatible = "samsung,s3c6400-uart";
+			reg = <0x7f005000 0x100>;
+			interrupt-parent = <&vic1>;
+			interrupts = <5>;
+			clock-names = "uart", "clk_uart_baud2",
+					"clk_uart_baud3";
+			clocks = <&clocks PCLK_UART0>, <&clocks PCLK_UART0>,
+					<&clocks SCLK_UART>;
+			status = "disabled";
+		};
+
+		uart1: serial@7f005400 {
+			compatible = "samsung,s3c6400-uart";
+			reg = <0x7f005400 0x100>;
+			interrupt-parent = <&vic1>;
+			interrupts = <6>;
+			clock-names = "uart", "clk_uart_baud2",
+					"clk_uart_baud3";
+			clocks = <&clocks PCLK_UART1>, <&clocks PCLK_UART1>,
+					<&clocks SCLK_UART>;
+			status = "disabled";
+		};
+
+		uart2: serial@7f005800 {
+			compatible = "samsung,s3c6400-uart";
+			reg = <0x7f005800 0x100>;
+			interrupt-parent = <&vic1>;
+			interrupts = <7>;
+			clock-names = "uart", "clk_uart_baud2",
+					"clk_uart_baud3";
+			clocks = <&clocks PCLK_UART2>, <&clocks PCLK_UART2>,
+					<&clocks SCLK_UART>;
+			status = "disabled";
+		};
+
+		uart3: serial@7f005c00 {
+			compatible = "samsung,s3c6400-uart";
+			reg = <0x7f005c00 0x100>;
+			interrupt-parent = <&vic1>;
+			interrupts = <8>;
+			clock-names = "uart", "clk_uart_baud2",
+					"clk_uart_baud3";
+			clocks = <&clocks PCLK_UART3>, <&clocks PCLK_UART3>,
+					<&clocks SCLK_UART>;
+			status = "disabled";
+		};
+
+		pwm: pwm@7f006000 {
+			compatible = "samsung,s3c6400-pwm";
+			reg = <0x7f006000 0x1000>;
+			interrupt-parent = <&vic0>;
+			interrupts = <23>, <24>, <25>, <27>, <28>;
+			clock-names = "timers";
+			clocks = <&clocks PCLK_PWM>;
+			samsung,pwm-outputs = <0>, <1>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
+		pinctrl0: pinctrl@7f008000 {
+			compatible = "samsung,s3c64xx-pinctrl";
+			reg = <0x7f008000 0x1000>;
+			interrupt-parent = <&vic1>;
+			interrupts = <21>;
+
+			pctrl_int_map: pinctrl-interrupt-map {
+				interrupt-map = <0 &vic0 0>,
+						<1 &vic0 1>,
+						<2 &vic1 0>,
+						<3 &vic1 1>;
+				#address-cells = <0>;
+				#size-cells = <0>;
+				#interrupt-cells = <1>;
+			};
+
+			wakeup-interrupt-controller {
+				compatible = "samsung,s3c64xx-wakeup-eint";
+				interrupts = <0>, <1>, <2>, <3>;
+				interrupt-parent = <&pctrl_int_map>;
+			};
+		};
+	};
+};
+
+#include "s3c64xx-pinctrl.dtsi"
-- 
cgit 


From a43736deb47d21bdb936afd5fbd92f938d10a121 Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Mon, 26 Aug 2013 02:38:24 +0900
Subject: ARM: dts: Add dts file for S3C6410-based Mini6410 board

This patch adds basic device tree sources for FriendlyARM Mini6410 board
based on Samsung S3C6410 SoC.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/boot/dts/Makefile             |   1 +
 arch/arm/boot/dts/s3c6410-mini6410.dts | 228 +++++++++++++++++++++++++++++++++
 2 files changed, 229 insertions(+)
 create mode 100644 arch/arm/boot/dts/s3c6410-mini6410.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index cc0f1fb61753..e8318e68de91 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -194,6 +194,7 @@ dtb-$(CONFIG_ARCH_U8500) += ste-snowball.dtb \
 	ste-ccu8540.dtb \
 	ste-ccu9540.dtb
 dtb-$(CONFIG_ARCH_S3C24XX) += s3c2416-smdk2416.dtb
+dtb-$(CONFIG_ARCH_S3C64XX) += s3c6410-mini6410.dtb
 dtb-$(CONFIG_ARCH_SHMOBILE) += emev2-kzm9d.dtb \
 	emev2-kzm9d-reference.dtb \
 	r8a7740-armadillo800eva.dtb \
diff --git a/arch/arm/boot/dts/s3c6410-mini6410.dts b/arch/arm/boot/dts/s3c6410-mini6410.dts
new file mode 100644
index 000000000000..57e00f9bce99
--- /dev/null
+++ b/arch/arm/boot/dts/s3c6410-mini6410.dts
@@ -0,0 +1,228 @@
+/*
+ * Samsung's S3C6410 based Mini6410 board device tree source
+ *
+ * Copyright (c) 2013 Tomasz Figa <tomasz.figa@gmail.com>
+ *
+ * Device tree source file for FriendlyARM Mini6410 board which is based on
+ * Samsung's S3C6410 SoC.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+#include "s3c6410.dtsi"
+
+/ {
+	model = "FriendlyARM Mini6410 board based on S3C6410";
+	compatible = "friendlyarm,mini6410", "samsung,s3c6410";
+
+	memory {
+		reg = <0x50000000 0x10000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttySAC0,115200n8 earlyprintk rootwait root=/dev/mmcblk0p1";
+	};
+
+	clocks {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		fin_pll: oscillator@0 {
+			compatible = "fixed-clock";
+			reg = <0>;
+			clock-frequency = <12000000>;
+			clock-output-names = "fin_pll";
+			#clock-cells = <0>;
+		};
+
+		xusbxti: oscillator@1 {
+			compatible = "fixed-clock";
+			reg = <1>;
+			clock-output-names = "xusbxti";
+			clock-frequency = <48000000>;
+			#clock-cells = <0>;
+		};
+	};
+
+	srom-cs1@18000000 {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		reg = <0x18000000 0x8000000>;
+		ranges;
+
+		ethernet@18000000 {
+			compatible = "davicom,dm9000";
+			reg = <0x18000000 0x2 0x18000004 0x2>;
+			interrupt-parent = <&gpn>;
+			interrupts = <7 IRQ_TYPE_LEVEL_HIGH>;
+			davicom,no-eeprom;
+		};
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+		pinctrl-names = "default";
+		pinctrl-0 = <&gpio_keys>;
+		autorepeat;
+
+		button-k1 {
+			label = "K1";
+			gpios = <&gpn 0 GPIO_ACTIVE_LOW>;
+			linux,code = <2>;
+			debounce-interval = <20>;
+		};
+
+		button-k2 {
+			label = "K2";
+			gpios = <&gpn 1 GPIO_ACTIVE_LOW>;
+			linux,code = <3>;
+			debounce-interval = <20>;
+		};
+
+		button-k3 {
+			label = "K3";
+			gpios = <&gpn 2 GPIO_ACTIVE_LOW>;
+			linux,code = <4>;
+			debounce-interval = <20>;
+		};
+
+		button-k4 {
+			label = "K4";
+			gpios = <&gpn 3 GPIO_ACTIVE_LOW>;
+			linux,code = <5>;
+			debounce-interval = <20>;
+		};
+
+		button-k5 {
+			label = "K5";
+			gpios = <&gpn 4 GPIO_ACTIVE_LOW>;
+			linux,code = <6>;
+			debounce-interval = <20>;
+		};
+
+		button-k6 {
+			label = "K6";
+			gpios = <&gpn 5 GPIO_ACTIVE_LOW>;
+			linux,code = <7>;
+			debounce-interval = <20>;
+		};
+
+		button-k7 {
+			label = "K7";
+			gpios = <&gpl 11 GPIO_ACTIVE_LOW>;
+			linux,code = <8>;
+			debounce-interval = <20>;
+		};
+
+		button-k8 {
+			label = "K8";
+			gpios = <&gpl 12 GPIO_ACTIVE_LOW>;
+			linux,code = <9>;
+			debounce-interval = <20>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&gpio_leds>;
+
+		led-1 {
+			label = "LED1";
+			gpios = <&gpk 4 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "heartbeat";
+		};
+
+		led-2 {
+			label = "LED2";
+			gpios = <&gpk 5 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "mmc0";
+		};
+
+		led-3 {
+			label = "LED3";
+			gpios = <&gpk 6 GPIO_ACTIVE_LOW>;
+		};
+
+		led-4 {
+			label = "LED4";
+			gpios = <&gpk 7 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	buzzer {
+		compatible = "pwm-beeper";
+		pwms = <&pwm 0 1000000 0>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pwm0_out>;
+	};
+};
+
+&sdhci0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&sd0_clk>, <&sd0_cmd>, <&sd0_cd>, <&sd0_bus4>;
+	bus-width = <4>;
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_data>;
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1_data>, <&uart1_fctl>;
+	status = "okay";
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart2_data>;
+	status = "okay";
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart3_data>;
+	status = "okay";
+};
+
+&pwm {
+	status = "okay";
+};
+
+&pinctrl0 {
+	gpio_leds: gpio-leds {
+		samsung,pins = "gpk-4", "gpk-5", "gpk-6", "gpk-7";
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+
+	gpio_keys: gpio-keys {
+		samsung,pins = "gpn-0", "gpn-1", "gpn-2", "gpn-3",
+				"gpn-4", "gpn-5", "gpl-11", "gpl-12";
+		samsung,pin-pud = <PIN_PULL_NONE>;
+	};
+};
+
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_bus>;
+	status = "okay";
+
+	eeprom@50 {
+		compatible = "atmel,24c08";
+		reg = <0x50>;
+		pagesize = <16>;
+	};
+};
-- 
cgit 


From 2ec35a4252eae3d5277af041bd1b5ae4f6183cad Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Mon, 26 Aug 2013 02:38:41 +0900
Subject: ARM: dts: Add dts file for S3C6410-based SMDK6410 board

This patch adds basic device tree sources for SAMSUNG SMDK6410 board
based on SAMSUNG S3C6410 SoC.

Currently only UARTs, SD channel 0 and 100Mbps ethernet (SMSC911x) are
supported.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/boot/dts/Makefile             |   3 +-
 arch/arm/boot/dts/s3c6410-smdk6410.dts | 103 +++++++++++++++++++++++++++++++++
 2 files changed, 105 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/boot/dts/s3c6410-smdk6410.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index e8318e68de91..76330c18c3a6 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -194,7 +194,8 @@ dtb-$(CONFIG_ARCH_U8500) += ste-snowball.dtb \
 	ste-ccu8540.dtb \
 	ste-ccu9540.dtb
 dtb-$(CONFIG_ARCH_S3C24XX) += s3c2416-smdk2416.dtb
-dtb-$(CONFIG_ARCH_S3C64XX) += s3c6410-mini6410.dtb
+dtb-$(CONFIG_ARCH_S3C64XX) += s3c6410-mini6410.dtb \
+	s3c6410-smdk6410.dtb
 dtb-$(CONFIG_ARCH_SHMOBILE) += emev2-kzm9d.dtb \
 	emev2-kzm9d-reference.dtb \
 	r8a7740-armadillo800eva.dtb \
diff --git a/arch/arm/boot/dts/s3c6410-smdk6410.dts b/arch/arm/boot/dts/s3c6410-smdk6410.dts
new file mode 100644
index 000000000000..ecf35ec466f7
--- /dev/null
+++ b/arch/arm/boot/dts/s3c6410-smdk6410.dts
@@ -0,0 +1,103 @@
+/*
+ * Samsung S3C6410 based SMDK6410 board device tree source.
+ *
+ * Copyright (c) 2013 Tomasz Figa <tomasz.figa@gmail.com>
+ *
+ * Device tree source file for SAMSUNG SMDK6410 board which is based on
+ * Samsung's S3C6410 SoC.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+#include "s3c6410.dtsi"
+
+/ {
+	model = "SAMSUNG SMDK6410 board based on S3C6410";
+	compatible = "samsung,mini6410", "samsung,s3c6410";
+
+	memory {
+		reg = <0x50000000 0x8000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttySAC0,115200n8 earlyprintk rootwait root=/dev/mmcblk0p1";
+	};
+
+	clocks {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		fin_pll: oscillator@0 {
+			compatible = "fixed-clock";
+			reg = <0>;
+			clock-frequency = <12000000>;
+			clock-output-names = "fin_pll";
+			#clock-cells = <0>;
+		};
+
+		xusbxti: oscillator@1 {
+			compatible = "fixed-clock";
+			reg = <1>;
+			clock-output-names = "xusbxti";
+			clock-frequency = <48000000>;
+			#clock-cells = <0>;
+		};
+	};
+
+	srom-cs1@18000000 {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		reg = <0x18000000 0x8000000>;
+		ranges;
+
+		ethernet@18000000 {
+			compatible = "smsc,lan9115";
+			reg = <0x18000000 0x10000>;
+			interrupt-parent = <&gpn>;
+			interrupts = <10 IRQ_TYPE_LEVEL_LOW>;
+			phy-mode = "mii";
+			reg-io-width = <4>;
+			smsc,force-internal-phy;
+		};
+	};
+};
+
+&sdhci0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&sd0_clk>, <&sd0_cmd>, <&sd0_cd>, <&sd0_bus4>;
+	bus-width = <4>;
+	status = "okay";
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_data>, <&uart0_fctl>;
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1_data>;
+	status = "okay";
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart2_data>;
+	status = "okay";
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart3_data>;
+	status = "okay";
+};
-- 
cgit 


From fdf200290581150f7b69148abf6ca860684cbfbb Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Sun, 1 Sep 2013 20:24:50 -0700
Subject: regmap: add regmap_field_update_bits()

Current regmap_field is supporting read/write functions.
This patch adds new update_bits function for it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/base/regmap/regmap.c | 20 ++++++++++++++++++++
 include/linux/regmap.h       |  2 ++
 2 files changed, 22 insertions(+)

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 7d689a15c500..285afa7470c0 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1369,6 +1369,26 @@ int regmap_field_write(struct regmap_field *field, unsigned int val)
 }
 EXPORT_SYMBOL_GPL(regmap_field_write);
 
+/**
+ * regmap_field_update_bits():	Perform a read/modify/write cycle
+ *                              on the register field
+ *
+ * @field: Register field to write to
+ * @mask: Bitmask to change
+ * @val: Value to be written
+ *
+ * A value of zero will be returned on success, a negative errno will
+ * be returned in error cases.
+ */
+int regmap_field_update_bits(struct regmap_field *field, unsigned int mask, unsigned int val)
+{
+	mask = (mask << field->shift) & field->mask;
+
+	return regmap_update_bits(field->regmap, field->reg,
+				  mask, val << field->shift);
+}
+EXPORT_SYMBOL_GPL(regmap_field_update_bits);
+
 /*
  * regmap_bulk_write(): Write multiple registers to the device
  *
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index a10380bfbeac..4c8c20a7a75d 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -448,6 +448,8 @@ void devm_regmap_field_free(struct device *dev,	struct regmap_field *field);
 
 int regmap_field_read(struct regmap_field *field, unsigned int *val);
 int regmap_field_write(struct regmap_field *field, unsigned int val);
+int regmap_field_update_bits(struct regmap_field *field,
+			     unsigned int mask, unsigned int val);
 
 /**
  * Description of an IRQ for the generic regmap irq_chip.
-- 
cgit 


From ec60dd37e1d907d0524fa4c5806ecf24b16ea712 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 17:54:12 +0900
Subject: spi: atmel: convert from legacy pm ops to dev_pm_ops

Instead of using legacy suspend/resume methods, using newer
dev_pm_ops structure allows better control over power management.
Also, duplicated 'return' is removed from atmel_spi_resume().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-atmel.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index fd7cc566095a..3daf754f96f8 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -1675,29 +1675,30 @@ static int atmel_spi_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef	CONFIG_PM
-
-static int atmel_spi_suspend(struct platform_device *pdev, pm_message_t mesg)
+#ifdef CONFIG_PM_SLEEP
+static int atmel_spi_suspend(struct device *dev)
 {
-	struct spi_master	*master = platform_get_drvdata(pdev);
+	struct spi_master	*master = dev_get_drvdata(dev);
 	struct atmel_spi	*as = spi_master_get_devdata(master);
 
 	clk_disable_unprepare(as->clk);
 	return 0;
 }
 
-static int atmel_spi_resume(struct platform_device *pdev)
+static int atmel_spi_resume(struct device *dev)
 {
-	struct spi_master	*master = platform_get_drvdata(pdev);
+	struct spi_master	*master = dev_get_drvdata(dev);
 	struct atmel_spi	*as = spi_master_get_devdata(master);
 
-	return clk_prepare_enable(as->clk);
+	clk_prepare_enable(as->clk);
 	return 0;
 }
 
+static SIMPLE_DEV_PM_OPS(atmel_spi_pm_ops, atmel_spi_suspend, atmel_spi_resume);
+
+#define ATMEL_SPI_PM_OPS	(&atmel_spi_pm_ops)
 #else
-#define	atmel_spi_suspend	NULL
-#define	atmel_spi_resume	NULL
+#define ATMEL_SPI_PM_OPS	NULL
 #endif
 
 #if defined(CONFIG_OF)
@@ -1713,10 +1714,9 @@ static struct platform_driver atmel_spi_driver = {
 	.driver		= {
 		.name	= "atmel_spi",
 		.owner	= THIS_MODULE,
+		.pm	= ATMEL_SPI_PM_OPS,
 		.of_match_table	= of_match_ptr(atmel_spi_dt_ids),
 	},
-	.suspend	= atmel_spi_suspend,
-	.resume		= atmel_spi_resume,
 	.probe		= atmel_spi_probe,
 	.remove		= atmel_spi_remove,
 };
-- 
cgit 


From a536d7654338a06356afd0363e6adf51a02cb08b Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 10 Sep 2013 17:06:27 +0530
Subject: spi: atmel: Silence checkpatch errors

Fixes the following types of checkpatch errors and warning:
ERROR: space required after that ',' (ctx:VxV)
WARNING: sizeof *as should be sizeof(*as)

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-atmel.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index 3daf754f96f8..6478a9713038 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -170,18 +170,18 @@
 /* Bit manipulation macros */
 #define SPI_BIT(name) \
 	(1 << SPI_##name##_OFFSET)
-#define SPI_BF(name,value) \
+#define SPI_BF(name, value) \
 	(((value) & ((1 << SPI_##name##_SIZE) - 1)) << SPI_##name##_OFFSET)
-#define SPI_BFEXT(name,value) \
+#define SPI_BFEXT(name, value) \
 	(((value) >> SPI_##name##_OFFSET) & ((1 << SPI_##name##_SIZE) - 1))
-#define SPI_BFINS(name,value,old) \
-	( ((old) & ~(((1 << SPI_##name##_SIZE) - 1) << SPI_##name##_OFFSET)) \
-	  | SPI_BF(name,value))
+#define SPI_BFINS(name, value, old) \
+	(((old) & ~(((1 << SPI_##name##_SIZE) - 1) << SPI_##name##_OFFSET)) \
+	  | SPI_BF(name, value))
 
 /* Register access macros */
-#define spi_readl(port,reg) \
+#define spi_readl(port, reg) \
 	__raw_readl((port)->regs + SPI_##reg)
-#define spi_writel(port,reg,value) \
+#define spi_writel(port, reg, value) \
 	__raw_writel((value), (port)->regs + SPI_##reg)
 
 /* use PIO for small transfers, avoiding DMA setup/teardown overhead and
@@ -1516,7 +1516,7 @@ static int atmel_spi_probe(struct platform_device *pdev)
 
 	/* setup spi core then atmel-specific driver state */
 	ret = -ENOMEM;
-	master = spi_alloc_master(&pdev->dev, sizeof *as);
+	master = spi_alloc_master(&pdev->dev, sizeof(*as));
 	if (!master)
 		goto out_free;
 
-- 
cgit 


From fbbfd68bc00d7bf431042b2e92cc4e540b827f67 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 17:55:32 +0900
Subject: spi: bfin5xx: convert from legacy pm ops to dev_pm_ops

Instead of using legacy suspend/resume methods, using newer
dev_pm_ops structure allows better control over power management.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-bfin5xx.c | 24 +++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)

diff --git a/drivers/spi/spi-bfin5xx.c b/drivers/spi/spi-bfin5xx.c
index 45bdf73d6868..1e2894315bb0 100644
--- a/drivers/spi/spi-bfin5xx.c
+++ b/drivers/spi/spi-bfin5xx.c
@@ -1410,10 +1410,10 @@ static int bfin_spi_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-static int bfin_spi_suspend(struct platform_device *pdev, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int bfin_spi_suspend(struct device *dev)
 {
-	struct bfin_spi_master_data *drv_data = platform_get_drvdata(pdev);
+	struct bfin_spi_master_data *drv_data = dev_get_drvdata(dev);
 	int status = 0;
 
 	status = bfin_spi_stop_queue(drv_data);
@@ -1432,9 +1432,9 @@ static int bfin_spi_suspend(struct platform_device *pdev, pm_message_t state)
 	return 0;
 }
 
-static int bfin_spi_resume(struct platform_device *pdev)
+static int bfin_spi_resume(struct device *dev)
 {
-	struct bfin_spi_master_data *drv_data = platform_get_drvdata(pdev);
+	struct bfin_spi_master_data *drv_data = dev_get_drvdata(dev);
 	int status = 0;
 
 	bfin_write(&drv_data->regs->ctl, drv_data->ctrl_reg);
@@ -1443,25 +1443,27 @@ static int bfin_spi_resume(struct platform_device *pdev)
 	/* Start the queue running */
 	status = bfin_spi_start_queue(drv_data);
 	if (status != 0) {
-		dev_err(&pdev->dev, "problem starting queue (%d)\n", status);
+		dev_err(dev, "problem starting queue (%d)\n", status);
 		return status;
 	}
 
 	return 0;
 }
+
+static SIMPLE_DEV_PM_OPS(bfin_spi_pm_ops, bfin_spi_suspend, bfin_spi_resume);
+
+#define BFIN_SPI_PM_OPS		(&bfin_spi_pm_ops)
 #else
-#define bfin_spi_suspend NULL
-#define bfin_spi_resume NULL
-#endif				/* CONFIG_PM */
+#define BFIN_SPI_PM_OPS		NULL
+#endif
 
 MODULE_ALIAS("platform:bfin-spi");
 static struct platform_driver bfin_spi_driver = {
 	.driver	= {
 		.name	= DRV_NAME,
 		.owner	= THIS_MODULE,
+		.pm	= BFIN_SPI_PM_OPS,
 	},
-	.suspend	= bfin_spi_suspend,
-	.resume		= bfin_spi_resume,
 	.remove		= bfin_spi_remove,
 };
 
-- 
cgit 


From 673d6e1767ee06496f0f94e5087c817003983ffd Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 17:56:17 +0900
Subject: spi: bfin-sport: convert from legacy pm ops to dev_pm_ops

Instead of using legacy suspend/resume methods, using newer
dev_pm_ops structure allows better control over power management.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-bfin-sport.c | 27 ++++++++++++++-------------
 1 file changed, 14 insertions(+), 13 deletions(-)

diff --git a/drivers/spi/spi-bfin-sport.c b/drivers/spi/spi-bfin-sport.c
index 91921b5f5817..6c81a5978eca 100644
--- a/drivers/spi/spi-bfin-sport.c
+++ b/drivers/spi/spi-bfin-sport.c
@@ -879,11 +879,10 @@ static int bfin_sport_spi_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-static int
-bfin_sport_spi_suspend(struct platform_device *pdev, pm_message_t state)
+#ifdef CONFIG_PM_SLEEP
+static int bfin_sport_spi_suspend(struct device *dev)
 {
-	struct bfin_sport_spi_master_data *drv_data = platform_get_drvdata(pdev);
+	struct bfin_sport_spi_master_data *drv_data = dev_get_drvdata(dev);
 	int status;
 
 	status = bfin_sport_spi_stop_queue(drv_data);
@@ -896,10 +895,9 @@ bfin_sport_spi_suspend(struct platform_device *pdev, pm_message_t state)
 	return status;
 }
 
-static int
-bfin_sport_spi_resume(struct platform_device *pdev)
+static int bfin_sport_spi_resume(struct device *dev)
 {
-	struct bfin_sport_spi_master_data *drv_data = platform_get_drvdata(pdev);
+	struct bfin_sport_spi_master_data *drv_data = dev_get_drvdata(dev);
 	int status;
 
 	/* Enable the SPI interface */
@@ -912,19 +910,22 @@ bfin_sport_spi_resume(struct platform_device *pdev)
 
 	return status;
 }
+
+static SIMPLE_DEV_PM_OPS(bfin_sport_spi_pm_ops, bfin_sport_spi_suspend,
+			bfin_sport_spi_resume);
+
+#define BFIN_SPORT_SPI_PM_OPS		(&bfin_sport_spi_pm_ops)
 #else
-# define bfin_sport_spi_suspend NULL
-# define bfin_sport_spi_resume  NULL
+#define BFIN_SPORT_SPI_PM_OPS		NULL
 #endif
 
 static struct platform_driver bfin_sport_spi_driver = {
 	.driver	= {
-		.name = DRV_NAME,
-		.owner = THIS_MODULE,
+		.name	= DRV_NAME,
+		.owner	= THIS_MODULE,
+		.pm	= BFIN_SPORT_SPI_PM_OPS,
 	},
 	.probe   = bfin_sport_spi_probe,
 	.remove  = bfin_sport_spi_remove,
-	.suspend = bfin_sport_spi_suspend,
-	.resume  = bfin_sport_spi_resume,
 };
 module_platform_driver(bfin_sport_spi_driver);
-- 
cgit 


From 32ea3944436ca9e73677f9d844289780f255d45a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 11 Sep 2013 16:05:04 +0530
Subject: spi: spi-davinci: Fix variable type

'prescale' contains the return value of davinci_spi_get_prescale()
which is a signed integer. Convert 'prescale' to integer to silence
the following warning:
drivers/spi/spi-davinci.c:318 davinci_spi_setup_transfer() warn:
unsigned 'prescale' is never less than zero.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-davinci.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
index 8fbfe2483ffd..8a04f1e05db2 100644
--- a/drivers/spi/spi-davinci.c
+++ b/drivers/spi/spi-davinci.c
@@ -279,7 +279,8 @@ static int davinci_spi_setup_transfer(struct spi_device *spi,
 	struct davinci_spi *dspi;
 	struct davinci_spi_config *spicfg;
 	u8 bits_per_word = 0;
-	u32 hz = 0, spifmt = 0, prescale = 0;
+	u32 hz = 0, spifmt = 0;
+	int prescale;
 
 	dspi = spi_master_get_devdata(spi->master);
 	spicfg = (struct davinci_spi_config *)spi->controller_data;
-- 
cgit 


From 1e0d191f62c779cdd6953db2541b6b92969ce1bb Mon Sep 17 00:00:00 2001
From: Julia Lawall <Julia.Lawall@lip6.fr>
Date: Mon, 2 Sep 2013 11:54:20 +0200
Subject: spi: designware: delete premature free_irq

Free_irq is not needed if there has been no request_irq.  Free_irq is
removed from both the probe and remove functions.  The correct request_irq
and free_irq appear to be in the add_host and remove_host functions in
spi-dw.c.

A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression e;
@@

*e = platform_get_irq(...);
... when != request_irq(e,...)
*free_irq(e,...)
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-dw-mmio.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/spi/spi-dw-mmio.c b/drivers/spi/spi-dw-mmio.c
index 4aa8be865cc0..168c620947f4 100644
--- a/drivers/spi/spi-dw-mmio.c
+++ b/drivers/spi/spi-dw-mmio.c
@@ -74,7 +74,7 @@ static int dw_spi_mmio_probe(struct platform_device *pdev)
 	dwsmmio->clk = clk_get(&pdev->dev, NULL);
 	if (IS_ERR(dwsmmio->clk)) {
 		ret = PTR_ERR(dwsmmio->clk);
-		goto err_irq;
+		goto err_unmap;
 	}
 	clk_enable(dwsmmio->clk);
 
@@ -94,8 +94,6 @@ err_clk:
 	clk_disable(dwsmmio->clk);
 	clk_put(dwsmmio->clk);
 	dwsmmio->clk = NULL;
-err_irq:
-	free_irq(dws->irq, dws);
 err_unmap:
 	iounmap(dws->regs);
 err_release_reg:
@@ -115,7 +113,6 @@ static int dw_spi_mmio_remove(struct platform_device *pdev)
 	clk_put(dwsmmio->clk);
 	dwsmmio->clk = NULL;
 
-	free_irq(dwsmmio->dws.irq, &dwsmmio->dws);
 	dw_spi_remove_host(&dwsmmio->dws);
 	iounmap(dwsmmio->dws.regs);
 	kfree(dwsmmio);
-- 
cgit 


From 7cce62f3aa956a4ce170e53c98cc195b74aba4b4 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 18:54:31 +0900
Subject: spi: dw-pci: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-dw-pci.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/spi/spi-dw-pci.c b/drivers/spi/spi-dw-pci.c
index 6055c8d9fdd7..6a708620816a 100644
--- a/drivers/spi/spi-dw-pci.c
+++ b/drivers/spi/spi-dw-pci.c
@@ -109,7 +109,6 @@ static void spi_pci_remove(struct pci_dev *pdev)
 {
 	struct dw_spi_pci *dwpci = pci_get_drvdata(pdev);
 
-	pci_set_drvdata(pdev, NULL);
 	dw_spi_remove_host(&dwpci->dws);
 	iounmap(dwpci->dws.regs);
 	pci_release_region(pdev, 0);
-- 
cgit 


From 91a92e12baf3c8cc2e353b3a70ddca9f9a59cf02 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 18:55:20 +0900
Subject: spi: spidev: remove unnecessary spi_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spidev.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c
index ca5bcfe874d0..c53556a1899a 100644
--- a/drivers/spi/spidev.c
+++ b/drivers/spi/spidev.c
@@ -629,7 +629,6 @@ static int spidev_remove(struct spi_device *spi)
 	/* make sure ops on existing fds can abort cleanly */
 	spin_lock_irq(&spidev->spi_lock);
 	spidev->spi = NULL;
-	spi_set_drvdata(spi, NULL);
 	spin_unlock_irq(&spidev->spi_lock);
 
 	/* prevent new opens */
-- 
cgit 


From 2ef3599d8181afcbd347226faba75991f9e008fc Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 5 Sep 2013 15:51:21 +0900
Subject: spi: fsl-dspi: add missing __iomem annotation

Added missing __iomem annotation in order to fix the following
sparse warnings:

drivers/spi/spi-fsl-dspi.c:140:16: warning: incorrect type in argument 1 (different address spaces)
drivers/spi/spi-fsl-dspi.c:140:16:    expected void const volatile [noderef] <asn:2>*addr
drivers/spi/spi-fsl-dspi.c:140:16:    got void *
drivers/spi/spi-fsl-dspi.c:143:9: warning: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-fsl-dspi.c:143:9:    expected void volatile [noderef] <asn:2>*addr
drivers/spi/spi-fsl-dspi.c:143:9:    got void *
drivers/spi/spi-fsl-dspi.c:132:18: warning: incorrect type in argument 1 (different address spaces)
drivers/spi/spi-fsl-dspi.c:132:18:    expected void const volatile [noderef] <asn:2>*addr
drivers/spi/spi-fsl-dspi.c:132:18:    got void *
drivers/spi/spi-fsl-dspi.c:241:17: warning: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-fsl-dspi.c:241:17:    expected void volatile [noderef] <asn:2>*addr
drivers/spi/spi-fsl-dspi.c:241:17:    got void *
drivers/spi/spi-fsl-dspi.c:132:18: warning: incorrect type in argument 1 (different address spaces)
drivers/spi/spi-fsl-dspi.c:132:18:    expected void const volatile [noderef] <asn:2>*addr
drivers/spi/spi-fsl-dspi.c:132:18:    got void *
drivers/spi/spi-fsl-dspi.c:259:29: warning: incorrect type in argument 1 (different address spaces)
drivers/spi/spi-fsl-dspi.c:259:29:    expected void const volatile [noderef] <asn:2>*addr
drivers/spi/spi-fsl-dspi.c:259:29:    got void *
drivers/spi/spi-fsl-dspi.c:266:29: warning: incorrect type in argument 1 (different address spaces)
drivers/spi/spi-fsl-dspi.c:266:29:    expected void const volatile [noderef] <asn:2>*addr
drivers/spi/spi-fsl-dspi.c:266:29:    got void *
drivers/spi/spi-fsl-dspi.c:298:9: warning: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-fsl-dspi.c:298:9:    expected void volatile [noderef] <asn:2>*addr
drivers/spi/spi-fsl-dspi.c:298:9:    got void *
drivers/spi/spi-fsl-dspi.c:299:9: warning: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-fsl-dspi.c:299:9:    expected void volatile [noderef] <asn:2>*addr
drivers/spi/spi-fsl-dspi.c:299:9:    got void *
drivers/spi/spi-fsl-dspi.c:300:9: warning: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-fsl-dspi.c:300:9:    expected void volatile [noderef] <asn:2>*addr
drivers/spi/spi-fsl-dspi.c:300:9:    got void *
drivers/spi/spi-fsl-dspi.c:303:17: warning: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-fsl-dspi.c:303:17:    expected void volatile [noderef] <asn:2>*addr
drivers/spi/spi-fsl-dspi.c:303:17:    got void *
drivers/spi/spi-fsl-dspi.c:318:21: warning: incorrect type in argument 1 (different address spaces)
drivers/spi/spi-fsl-dspi.c:318:21:    expected void const volatile [noderef] <asn:2>*addr
drivers/spi/spi-fsl-dspi.c:318:21:    got void *
drivers/spi/spi-fsl-dspi.c:327:9: warning: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-fsl-dspi.c:327:9:    expected void volatile [noderef] <asn:2>*addr
drivers/spi/spi-fsl-dspi.c:327:9:    got void *
drivers/spi/spi-fsl-dspi.c:386:9: warning: incorrect type in argument 2 (different address spaces)
drivers/spi/spi-fsl-dspi.c:386:9:    expected void volatile [noderef] <asn:2>*addr
drivers/spi/spi-fsl-dspi.c:386:9:    got void *
drivers/spi/spi-fsl-dspi.c:485:20: warning: incorrect type in assignment (different address spaces)
drivers/spi/spi-fsl-dspi.c:485:20:    expected void *base
drivers/spi/spi-fsl-dspi.c:485:20:    got void [noderef] <asn:2>*

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-fsl-dspi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index 6cd07d13ecab..735d4f51016c 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -108,7 +108,7 @@ struct fsl_dspi {
 	struct spi_bitbang	bitbang;
 	struct platform_device	*pdev;
 
-	void			*base;
+	void __iomem		*base;
 	int			irq;
 	struct clk 		*clk;
 
-- 
cgit 


From b444d1dfe296433a93d6b814d924e0ab99ad7e7b Mon Sep 17 00:00:00 2001
From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Tue, 10 Sep 2013 10:46:33 +0200
Subject: spi: fsl-dspi: several minor improvements and fixes
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

 - improve dependencies using COMPILE_TEST
 - fix a typo
 - drop platform_set_drvdata(pdev, NULL) in error path of probe
 - make MODULE_LICENSE match the header

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/Kconfig        | 1 +
 drivers/spi/spi-fsl-dspi.c | 5 ++---
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index b9c53cc40e1f..c463d364b3dd 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -264,6 +264,7 @@ config SPI_FSL_SPI
 config SPI_FSL_DSPI
 	tristate "Freescale DSPI controller"
 	select SPI_BITBANG
+	depends on SOC_VF610 || COMPILE_TEST
 	help
 	  This enables support for the Freescale DSPI controller in master
 	  mode. VF610 platform uses the controller.
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index 735d4f51016c..dc3d4eb0531c 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -165,7 +165,7 @@ static void hz_to_spi_baud(char *pbr, char *br, int speed_hz,
 			}
 		}
 
-	pr_warn("Can not find valid buad rate,speed_hz is %d,clkrate is %ld\
+	pr_warn("Can not find valid baud rate,speed_hz is %d,clkrate is %ld\
 		,we use the max prescaler value.\n", speed_hz, clkrate);
 	*pbr = ARRAY_SIZE(pbr_tbl) - 1;
 	*br =  ARRAY_SIZE(brs) - 1;
@@ -526,7 +526,6 @@ out_clk_put:
 	clk_disable_unprepare(dspi->clk);
 out_master_put:
 	spi_master_put(master);
-	platform_set_drvdata(pdev, NULL);
 
 	return ret;
 }
@@ -553,5 +552,5 @@ static struct platform_driver fsl_dspi_driver = {
 module_platform_driver(fsl_dspi_driver);
 
 MODULE_DESCRIPTION("Freescale DSPI Controller Driver");
-MODULE_LICENSE("GPL v2");
+MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:" DRIVER_NAME);
-- 
cgit 


From 6e99897ba0cdeb83e91738683000aeed6a079cae Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 2 Sep 2013 11:56:21 +0530
Subject: spi: pl022: Remove redundant break

'break' immediately after return has no effect.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-pl022.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index 9c511a954d21..1ff2d8e78f51 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -1619,7 +1619,6 @@ static int verify_controller_parameters(struct pl022 *pl022,
 		dev_err(&pl022->adev->dev,
 			"RX FIFO Trigger Level is configured incorrectly\n");
 		return -EINVAL;
-		break;
 	}
 	switch (chip_info->tx_lev_trig) {
 	case SSP_TX_1_OR_MORE_EMPTY_LOC:
@@ -1645,7 +1644,6 @@ static int verify_controller_parameters(struct pl022 *pl022,
 		dev_err(&pl022->adev->dev,
 			"TX FIFO Trigger Level is configured incorrectly\n");
 		return -EINVAL;
-		break;
 	}
 	if (chip_info->iface == SSP_INTERFACE_NATIONAL_MICROWIRE) {
 		if ((chip_info->ctrl_len < SSP_BITS_4)
-- 
cgit 


From 4ebfee9118599dece86429270be1bcbb3099f237 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 18:53:36 +0900
Subject: spi: pl022: remove unnecessary amba_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-pl022.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index 1ff2d8e78f51..c13d523f1f48 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -2286,7 +2286,6 @@ pl022_remove(struct amba_device *adev)
 	amba_release_regions(adev);
 	tasklet_disable(&pl022->pump_transfers);
 	spi_unregister_master(pl022->master);
-	amba_set_drvdata(adev, NULL);
 	return 0;
 }
 
-- 
cgit 


From 2bad969f782e6da1ab35ebd2897212387e797fa7 Mon Sep 17 00:00:00 2001
From: Oliver Schinagl <oliver@schinagl.nl>
Date: Tue, 3 Sep 2013 12:33:28 +0200
Subject: ARM: sunxi: dt: Add sunxi-sid to dts for sun4i, sun5i and sun7i

This patch shall add support for the sunxi-sid driver to the device
tree for A10, A10s, A13 and A20.

Signed-off-by: Oliver Schinagl <oliver@schinagl.nl>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 arch/arm/boot/dts/sun4i-a10.dtsi  | 5 +++++
 arch/arm/boot/dts/sun5i-a10s.dtsi | 5 +++++
 arch/arm/boot/dts/sun5i-a13.dtsi  | 5 +++++
 arch/arm/boot/dts/sun7i-a20.dtsi  | 5 +++++
 4 files changed, 20 insertions(+)

diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi
index c32770a28acf..319cc6b509da 100644
--- a/arch/arm/boot/dts/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/sun4i-a10.dtsi
@@ -266,6 +266,11 @@
 			reg = <0x01c20c90 0x10>;
 		};
 
+		sid: eeprom@01c23800 {
+			compatible = "allwinner,sun4i-sid";
+			reg = <0x01c23800 0x10>;
+		};
+
 		uart0: serial@01c28000 {
 			compatible = "snps,dw-apb-uart";
 			reg = <0x01c28000 0x400>;
diff --git a/arch/arm/boot/dts/sun5i-a10s.dtsi b/arch/arm/boot/dts/sun5i-a10s.dtsi
index 3b4a0574f068..52476742a104 100644
--- a/arch/arm/boot/dts/sun5i-a10s.dtsi
+++ b/arch/arm/boot/dts/sun5i-a10s.dtsi
@@ -255,6 +255,11 @@
 			reg = <0x01c20c90 0x10>;
 		};
 
+		sid: eeprom@01c23800 {
+			compatible = "allwinner,sun4i-sid";
+			reg = <0x01c23800 0x10>;
+		};
+
 		uart0: serial@01c28000 {
 			compatible = "snps,dw-apb-uart";
 			reg = <0x01c28000 0x400>;
diff --git a/arch/arm/boot/dts/sun5i-a13.dtsi b/arch/arm/boot/dts/sun5i-a13.dtsi
index f6091dc0936c..ce8ef2a45be0 100644
--- a/arch/arm/boot/dts/sun5i-a13.dtsi
+++ b/arch/arm/boot/dts/sun5i-a13.dtsi
@@ -222,6 +222,11 @@
 			reg = <0x01c20c90 0x10>;
 		};
 
+		sid: eeprom@01c23800 {
+			compatible = "allwinner,sun4i-sid";
+			reg = <0x01c23800 0x10>;
+		};
+
 		uart1: serial@01c28400 {
 			compatible = "snps,dw-apb-uart";
 			reg = <0x01c28400 0x400>;
diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 80559cbdbc87..282c775ee11e 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -244,6 +244,11 @@
 			reg = <0x01c20c90 0x10>;
 		};
 
+		sid: eeprom@01c23800 {
+			compatible = "allwinner,sun7i-a20-sid";
+			reg = <0x01c23800 0x200>;
+		};
+
 		uart0: serial@01c28000 {
 			compatible = "snps,dw-apb-uart";
 			reg = <0x01c28000 0x400>;
-- 
cgit 


From 5ce0ba88650f2606244a761d92e2b725f4ab3583 Mon Sep 17 00:00:00 2001
From: Hiep Cao Minh <cm-hiep@jinso.co.jp>
Date: Tue, 3 Sep 2013 13:10:26 +0900
Subject: spi: rcar: add Renesas QSPI support on RSPI

The R8A7790 has QSPI module which is very similar to RSPI.
This patch adds into RSPI module together to supports QSPI module.

Signed-off-by: Hiep Cao Minh <cm-hiep@jinso.co.jp>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/Kconfig      |   2 +-
 drivers/spi/spi-rspi.c   | 183 ++++++++++++++++++++++++++++++++++++-----------
 include/linux/spi/rspi.h |   2 +
 3 files changed, 145 insertions(+), 42 deletions(-)

diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index b9c53cc40e1f..738facf90597 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -369,7 +369,7 @@ config SPI_PXA2XX_PCI
 
 config SPI_RSPI
 	tristate "Renesas RSPI controller"
-	depends on SUPERH && SH_DMAE_BASE
+	depends on (SUPERH || ARCH_SHMOBILE) && SH_DMAE_BASE
 	help
 	  SPI driver for Renesas RSPI blocks.
 
diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c
index 8719206a03a0..4c8dbac11b42 100644
--- a/drivers/spi/spi-rspi.c
+++ b/drivers/spi/spi-rspi.c
@@ -59,6 +59,14 @@
 #define RSPI_SPCMD6		0x1c
 #define RSPI_SPCMD7		0x1e
 
+/*qspi only */
+#define QSPI_SPBFCR		0x18
+#define QSPI_SPBDCR		0x1a
+#define QSPI_SPBMUL0		0x1c
+#define QSPI_SPBMUL1		0x20
+#define QSPI_SPBMUL2		0x24
+#define QSPI_SPBMUL3		0x28
+
 /* SPCR */
 #define SPCR_SPRIE		0x80
 #define SPCR_SPE		0x40
@@ -126,6 +134,8 @@
 #define SPCMD_LSBF		0x1000
 #define SPCMD_SPB_MASK		0x0f00
 #define SPCMD_SPB_8_TO_16(bit)	(((bit - 1) << 8) & SPCMD_SPB_MASK)
+#define SPCMD_SPB_8BIT		0x0000	/* qspi only */
+#define SPCMD_SPB_16BIT		0x0100
 #define SPCMD_SPB_20BIT		0x0000
 #define SPCMD_SPB_24BIT		0x0100
 #define SPCMD_SPB_32BIT		0x0200
@@ -135,6 +145,10 @@
 #define SPCMD_CPOL		0x0002
 #define SPCMD_CPHA		0x0001
 
+/* SPBFCR */
+#define SPBFCR_TXRST		0x80	/* qspi only */
+#define SPBFCR_RXRST		0x40	/* qspi only */
+
 struct rspi_data {
 	void __iomem *addr;
 	u32 max_speed_hz;
@@ -145,6 +159,7 @@ struct rspi_data {
 	spinlock_t lock;
 	struct clk *clk;
 	unsigned char spsr;
+	const struct spi_ops *ops;
 
 	/* for dmaengine */
 	struct dma_chan *chan_tx;
@@ -165,6 +180,11 @@ static void rspi_write16(struct rspi_data *rspi, u16 data, u16 offset)
 	iowrite16(data, rspi->addr + offset);
 }
 
+static void rspi_write32(struct rspi_data *rspi, u32 data, u16 offset)
+{
+	iowrite32(data, rspi->addr + offset);
+}
+
 static u8 rspi_read8(struct rspi_data *rspi, u16 offset)
 {
 	return ioread8(rspi->addr + offset);
@@ -175,17 +195,98 @@ static u16 rspi_read16(struct rspi_data *rspi, u16 offset)
 	return ioread16(rspi->addr + offset);
 }
 
-static unsigned char rspi_calc_spbr(struct rspi_data *rspi)
+/* optional functions */
+struct spi_ops {
+	int (*set_config_register)(struct rspi_data *rspi, int access_size);
+};
+
+/*
+ * functions for RSPI
+ */
+static int rspi_set_config_register(struct rspi_data *rspi, int access_size)
 {
-	int tmp;
-	unsigned char spbr;
+	int spbr;
+
+	/* Sets output mode(CMOS) and MOSI signal(from previous transfer) */
+	rspi_write8(rspi, 0x00, RSPI_SPPCR);
 
-	tmp = clk_get_rate(rspi->clk) / (2 * rspi->max_speed_hz) - 1;
-	spbr = clamp(tmp, 0, 255);
+	/* Sets transfer bit rate */
+	spbr = clk_get_rate(rspi->clk) / (2 * rspi->max_speed_hz) - 1;
+	rspi_write8(rspi, clamp(spbr, 0, 255), RSPI_SPBR);
+
+	/* Sets number of frames to be used: 1 frame */
+	rspi_write8(rspi, 0x00, RSPI_SPDCR);
 
-	return spbr;
+	/* Sets RSPCK, SSL, next-access delay value */
+	rspi_write8(rspi, 0x00, RSPI_SPCKD);
+	rspi_write8(rspi, 0x00, RSPI_SSLND);
+	rspi_write8(rspi, 0x00, RSPI_SPND);
+
+	/* Sets parity, interrupt mask */
+	rspi_write8(rspi, 0x00, RSPI_SPCR2);
+
+	/* Sets SPCMD */
+	rspi_write16(rspi, SPCMD_SPB_8_TO_16(access_size) | SPCMD_SSLKP,
+		     RSPI_SPCMD0);
+
+	/* Sets RSPI mode */
+	rspi_write8(rspi, SPCR_MSTR, RSPI_SPCR);
+
+	return 0;
 }
 
+/*
+ * functions for QSPI
+ */
+static int qspi_set_config_register(struct rspi_data *rspi, int access_size)
+{
+	u16 spcmd;
+	int spbr;
+
+	/* Sets output mode(CMOS) and MOSI signal(from previous transfer) */
+	rspi_write8(rspi, 0x00, RSPI_SPPCR);
+
+	/* Sets transfer bit rate */
+	spbr = clk_get_rate(rspi->clk) / (2 * rspi->max_speed_hz);
+	rspi_write8(rspi, clamp(spbr, 0, 255), RSPI_SPBR);
+
+	/* Sets number of frames to be used: 1 frame */
+	rspi_write8(rspi, 0x00, RSPI_SPDCR);
+
+	/* Sets RSPCK, SSL, next-access delay value */
+	rspi_write8(rspi, 0x00, RSPI_SPCKD);
+	rspi_write8(rspi, 0x00, RSPI_SSLND);
+	rspi_write8(rspi, 0x00, RSPI_SPND);
+
+	/* Data Length Setting */
+	if (access_size == 8)
+		spcmd = SPCMD_SPB_8BIT;
+	else if (access_size == 16)
+		spcmd = SPCMD_SPB_16BIT;
+	else if (access_size == 32)
+		spcmd = SPCMD_SPB_32BIT;
+
+	spcmd |= SPCMD_SCKDEN | SPCMD_SLNDEN | SPCMD_SSLKP | SPCMD_SPNDEN;
+
+	/* Resets transfer data length */
+	rspi_write32(rspi, 0, QSPI_SPBMUL0);
+
+	/* Resets transmit and receive buffer */
+	rspi_write8(rspi, SPBFCR_TXRST | SPBFCR_RXRST, QSPI_SPBFCR);
+	/* Sets buffer to allow normal operation */
+	rspi_write8(rspi, 0x00, QSPI_SPBFCR);
+
+	/* Sets SPCMD */
+	rspi_write16(rspi, spcmd, RSPI_SPCMD0);
+
+	/* Enables SPI function in a master mode */
+	rspi_write8(rspi, SPCR_SPE | SPCR_MSTR, RSPI_SPCR);
+
+	return 0;
+}
+
+#define set_config_register(spi, n) spi->ops->set_config_register(spi, n)
+
 static void rspi_enable_irq(struct rspi_data *rspi, u8 enable)
 {
 	rspi_write8(rspi, rspi_read8(rspi, RSPI_SPCR) | enable, RSPI_SPCR);
@@ -220,35 +321,6 @@ static void rspi_negate_ssl(struct rspi_data *rspi)
 	rspi_write8(rspi, rspi_read8(rspi, RSPI_SPCR) & ~SPCR_SPE, RSPI_SPCR);
 }
 
-static int rspi_set_config_register(struct rspi_data *rspi, int access_size)
-{
-	/* Sets output mode(CMOS) and MOSI signal(from previous transfer) */
-	rspi_write8(rspi, 0x00, RSPI_SPPCR);
-
-	/* Sets transfer bit rate */
-	rspi_write8(rspi, rspi_calc_spbr(rspi), RSPI_SPBR);
-
-	/* Sets number of frames to be used: 1 frame */
-	rspi_write8(rspi, 0x00, RSPI_SPDCR);
-
-	/* Sets RSPCK, SSL, next-access delay value */
-	rspi_write8(rspi, 0x00, RSPI_SPCKD);
-	rspi_write8(rspi, 0x00, RSPI_SSLND);
-	rspi_write8(rspi, 0x00, RSPI_SPND);
-
-	/* Sets parity, interrupt mask */
-	rspi_write8(rspi, 0x00, RSPI_SPCR2);
-
-	/* Sets SPCMD */
-	rspi_write16(rspi, SPCMD_SPB_8_TO_16(access_size) | SPCMD_SSLKP,
-		     RSPI_SPCMD0);
-
-	/* Sets RSPI mode */
-	rspi_write8(rspi, SPCR_MSTR, RSPI_SPCR);
-
-	return 0;
-}
-
 static int rspi_send_pio(struct rspi_data *rspi, struct spi_message *mesg,
 			 struct spi_transfer *t)
 {
@@ -616,7 +688,7 @@ static int rspi_setup(struct spi_device *spi)
 		spi->bits_per_word = 8;
 	rspi->max_speed_hz = spi->max_speed_hz;
 
-	rspi_set_config_register(rspi, 8);
+	set_config_register(rspi, 8);
 
 	return 0;
 }
@@ -745,7 +817,16 @@ static int rspi_probe(struct platform_device *pdev)
 	struct rspi_data *rspi;
 	int ret, irq;
 	char clk_name[16];
-
+	struct rspi_plat_data *rspi_pd = pdev->dev.platform_data;
+	const struct spi_ops *ops;
+	const struct platform_device_id *id_entry = pdev->id_entry;
+
+	ops = (struct spi_ops *)id_entry->driver_data;
+	/* ops parameter check */
+	if (!ops->set_config_register) {
+		dev_err(&pdev->dev, "there is no set_config_register\n");
+		return -ENODEV;
+	}
 	/* get base addr */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (unlikely(res == NULL)) {
@@ -767,7 +848,7 @@ static int rspi_probe(struct platform_device *pdev)
 
 	rspi = spi_master_get_devdata(master);
 	platform_set_drvdata(pdev, rspi);
-
+	rspi->ops = ops;
 	rspi->master = master;
 	rspi->addr = ioremap(res->start, resource_size(res));
 	if (rspi->addr == NULL) {
@@ -776,7 +857,7 @@ static int rspi_probe(struct platform_device *pdev)
 		goto error1;
 	}
 
-	snprintf(clk_name, sizeof(clk_name), "rspi%d", pdev->id);
+	snprintf(clk_name, sizeof(clk_name), "%s%d", id_entry->name, pdev->id);
 	rspi->clk = clk_get(&pdev->dev, clk_name);
 	if (IS_ERR(rspi->clk)) {
 		dev_err(&pdev->dev, "cannot get clock\n");
@@ -790,7 +871,10 @@ static int rspi_probe(struct platform_device *pdev)
 	INIT_WORK(&rspi->ws, rspi_work);
 	init_waitqueue_head(&rspi->wait);
 
-	master->num_chipselect = 2;
+	master->num_chipselect = rspi_pd->num_chipselect;
+	if (!master->num_chipselect)
+		master->num_chipselect = 2; /* default */
+
 	master->bus_num = pdev->id;
 	master->setup = rspi_setup;
 	master->transfer = rspi_transfer;
@@ -832,11 +916,28 @@ error1:
 	return ret;
 }
 
+static struct spi_ops rspi_ops = {
+	.set_config_register =		rspi_set_config_register,
+};
+
+static struct spi_ops qspi_ops = {
+	.set_config_register =		qspi_set_config_register,
+};
+
+static struct platform_device_id spi_driver_ids[] = {
+	{ "rspi",	(kernel_ulong_t)&rspi_ops },
+	{ "qspi",	(kernel_ulong_t)&qspi_ops },
+	{},
+};
+
+MODULE_DEVICE_TABLE(platform, spi_driver_ids);
+
 static struct platform_driver rspi_driver = {
 	.probe =	rspi_probe,
 	.remove =	rspi_remove,
+	.id_table =	spi_driver_ids,
 	.driver		= {
-		.name = "rspi",
+		.name = "renesas_spi",
 		.owner	= THIS_MODULE,
 	},
 };
diff --git a/include/linux/spi/rspi.h b/include/linux/spi/rspi.h
index 900f0e328235..a25bd6f65e7f 100644
--- a/include/linux/spi/rspi.h
+++ b/include/linux/spi/rspi.h
@@ -26,6 +26,8 @@ struct rspi_plat_data {
 	unsigned int dma_rx_id;
 
 	unsigned dma_width_16bit:1;	/* DMAC read/write width = 16-bit */
+
+	u16 num_chipselect;
 };
 
 #endif
-- 
cgit 


From cfeb33127bfd5c248c8633715d75c04186d8fca9 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 10 Sep 2013 11:20:13 +0530
Subject: spi: spi-s3c24xx: Staticize s3c24xx_spi_tryfiq

's3c24xx_spi_tryfiq' is used only in this file. Make it static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-s3c24xx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-s3c24xx.c b/drivers/spi/spi-s3c24xx.c
index ce318d95a6ee..d39589dba5c1 100644
--- a/drivers/spi/spi-s3c24xx.c
+++ b/drivers/spi/spi-s3c24xx.c
@@ -280,7 +280,7 @@ static inline u32 ack_bit(unsigned int irq)
  * so the caller does not need to do anything more than start the transfer
  * as normal, since the IRQ will have been re-routed to the FIQ handler.
 */
-void s3c24xx_spi_tryfiq(struct s3c24xx_spi *hw)
+static void s3c24xx_spi_tryfiq(struct s3c24xx_spi *hw)
 {
 	struct pt_regs regs;
 	enum spi_fiq_mode mode;
-- 
cgit 


From 50c959fc3366693174cdf3f1c82d0c01bbee926f Mon Sep 17 00:00:00 2001
From: Lukasz Czerwinski <l.czerwinski@samsung.com>
Date: Mon, 9 Sep 2013 16:09:25 +0200
Subject: spi: spi-s3c64xx: Use module_platform_driver()

subsys_init_call() initializes driver too early.
It's preventing to move DMA channel allocation at the begining
(driver probe).

This patch reduces and simplifies initalization code by
using module_platform_driver() macro.
It's also efficiently delaying driver startup.

Signed-off-by: Lukasz Czerwinski <l.czerwinski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-s3c64xx.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 512b8893893b..20dd71237d3b 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -1633,22 +1633,13 @@ static struct platform_driver s3c64xx_spi_driver = {
 		.pm = &s3c64xx_spi_pm,
 		.of_match_table = of_match_ptr(s3c64xx_spi_dt_match),
 	},
+	.probe = s3c64xx_spi_probe,
 	.remove = s3c64xx_spi_remove,
 	.id_table = s3c64xx_spi_driver_ids,
 };
 MODULE_ALIAS("platform:s3c64xx-spi");
 
-static int __init s3c64xx_spi_init(void)
-{
-	return platform_driver_probe(&s3c64xx_spi_driver, s3c64xx_spi_probe);
-}
-subsys_initcall(s3c64xx_spi_init);
-
-static void __exit s3c64xx_spi_exit(void)
-{
-	platform_driver_unregister(&s3c64xx_spi_driver);
-}
-module_exit(s3c64xx_spi_exit);
+module_platform_driver(s3c64xx_spi_driver);
 
 MODULE_AUTHOR("Jaswinder Singh <jassi.brar@samsung.com>");
 MODULE_DESCRIPTION("S3C64XX SPI Controller Driver");
-- 
cgit 


From e91d2352bb6ebd061b362b3c632ec517ac0c23b1 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Fri, 30 Aug 2013 11:00:23 +0800
Subject: spi: tegra: Use DIV_ROUND_UP instead of open coded

This also makes the intention more clear.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-tegra114.c       | 2 +-
 drivers/spi/spi-tegra20-sflash.c | 2 +-
 drivers/spi/spi-tegra20-slink.c  | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/spi-tegra114.c b/drivers/spi/spi-tegra114.c
index 145dd435483b..946ff7377352 100644
--- a/drivers/spi/spi-tegra114.c
+++ b/drivers/spi/spi-tegra114.c
@@ -267,7 +267,7 @@ static unsigned tegra_spi_calculate_curr_xfer_param(
 	unsigned max_len;
 	unsigned total_fifo_words;
 
-	tspi->bytes_per_word = (bits_per_word - 1) / 8 + 1;
+	tspi->bytes_per_word = DIV_ROUND_UP(bits_per_word, 8);
 
 	if (bits_per_word == 8 || bits_per_word == 16) {
 		tspi->is_packed = 1;
diff --git a/drivers/spi/spi-tegra20-sflash.c b/drivers/spi/spi-tegra20-sflash.c
index 1d814dc6e000..64c9cf511175 100644
--- a/drivers/spi/spi-tegra20-sflash.c
+++ b/drivers/spi/spi-tegra20-sflash.c
@@ -173,7 +173,7 @@ static unsigned tegra_sflash_calculate_curr_xfer_param(
 	unsigned remain_len = t->len - tsd->cur_pos;
 	unsigned max_word;
 
-	tsd->bytes_per_word = (t->bits_per_word - 1) / 8 + 1;
+	tsd->bytes_per_word = DIV_ROUND_UP(t->bits_per_word, 8);
 	max_word = remain_len / tsd->bytes_per_word;
 	if (max_word > SPI_FIFO_DEPTH)
 		max_word = SPI_FIFO_DEPTH;
diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c
index c70353672a23..231b84523d37 100644
--- a/drivers/spi/spi-tegra20-slink.c
+++ b/drivers/spi/spi-tegra20-slink.c
@@ -283,7 +283,7 @@ static unsigned tegra_slink_calculate_curr_xfer_param(
 	unsigned total_fifo_words;
 
 	bits_per_word = t->bits_per_word;
-	tspi->bytes_per_word = (bits_per_word - 1) / 8 + 1;
+	tspi->bytes_per_word = DIV_ROUND_UP(bits_per_word, 8);
 
 	if (bits_per_word == 8 || bits_per_word == 16) {
 		tspi->is_packed = 1;
-- 
cgit 


From 0fdfd40aca7046eb0b770d64dfe526a03ed5d092 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Mon, 9 Sep 2013 13:49:27 +0200
Subject: regulator: da9063: Add missing initialization of da9063_reg_matches
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

With gcc 4.1.2:

drivers/regulator/da9063-regulator.c: In function ‘da9063_regulator_probe’:
drivers/regulator/da9063-regulator.c:847: warning: ‘da9063_reg_matches’ is used
uninitialized in this function

If the parent device already has platform data, da9063_reg_matches will
not be initialized.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/da9063-regulator.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/da9063-regulator.c b/drivers/regulator/da9063-regulator.c
index 1a7816390773..362261359ce8 100644
--- a/drivers/regulator/da9063-regulator.c
+++ b/drivers/regulator/da9063-regulator.c
@@ -717,7 +717,7 @@ static int da9063_regulator_probe(struct platform_device *pdev)
 {
 	struct da9063 *da9063 = dev_get_drvdata(pdev->dev.parent);
 	struct da9063_pdata *da9063_pdata = dev_get_platdata(da9063->dev);
-	struct of_regulator_match *da9063_reg_matches;
+	struct of_regulator_match *da9063_reg_matches = NULL;
 	struct da9063_regulators_pdata *regl_pdata;
 	const struct da9063_dev_model *model;
 	struct da9063_regulators *regulators;
-- 
cgit 


From 1aa20d27b4d23c18a20a9268e49e5d21a74789ff Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 11:42:46 +0100
Subject: regulator: wm831x-dcdc: Convert to devm_gpio_request_one()

Saves code in the unwind path.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/wm831x-dcdc.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c
index 11861cb861df..8f627503ac41 100644
--- a/drivers/regulator/wm831x-dcdc.c
+++ b/drivers/regulator/wm831x-dcdc.c
@@ -387,8 +387,9 @@ static struct regulator_ops wm831x_buckv_ops = {
  * Set up DVS control.  We just log errors since we can still run
  * (with reduced performance) if we fail.
  */
-static void wm831x_buckv_dvs_init(struct wm831x_dcdc *dcdc,
-					    struct wm831x_buckv_pdata *pdata)
+static void wm831x_buckv_dvs_init(struct platform_device *pdev,
+				  struct wm831x_dcdc *dcdc,
+				  struct wm831x_buckv_pdata *pdata)
 {
 	struct wm831x *wm831x = dcdc->wm831x;
 	int ret;
@@ -402,9 +403,9 @@ static void wm831x_buckv_dvs_init(struct wm831x_dcdc *dcdc,
 	 */
 	dcdc->dvs_gpio_state = pdata->dvs_init_state;
 
-	ret = gpio_request_one(pdata->dvs_gpio,
-			       dcdc->dvs_gpio_state ? GPIOF_INIT_HIGH : 0,
-			       "DCDC DVS");
+	ret = devm_gpio_request_one(&pdev->dev, pdata->dvs_gpio,
+				    dcdc->dvs_gpio_state ? GPIOF_INIT_HIGH : 0,
+				    "DCDC DVS");
 	if (ret < 0) {
 		dev_err(wm831x->dev, "Failed to get %s DVS GPIO: %d\n",
 			dcdc->name, ret);
@@ -513,7 +514,8 @@ static int wm831x_buckv_probe(struct platform_device *pdev)
 	dcdc->dvs_vsel = ret & WM831X_DC1_DVS_VSEL_MASK;
 
 	if (pdata && pdata->dcdc[id])
-		wm831x_buckv_dvs_init(dcdc, pdata->dcdc[id]->driver_data);
+		wm831x_buckv_dvs_init(pdev, dcdc,
+				      pdata->dcdc[id]->driver_data);
 
 	config.dev = pdev->dev.parent;
 	if (pdata)
@@ -557,8 +559,6 @@ err_uv:
 err_regulator:
 	regulator_unregister(dcdc->regulator);
 err:
-	if (dcdc->dvs_gpio)
-		gpio_free(dcdc->dvs_gpio);
 	return ret;
 }
 
@@ -572,8 +572,6 @@ static int wm831x_buckv_remove(struct platform_device *pdev)
 	free_irq(wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV")),
 			    dcdc);
 	regulator_unregister(dcdc->regulator);
-	if (dcdc->dvs_gpio)
-		gpio_free(dcdc->dvs_gpio);
 
 	return 0;
 }
-- 
cgit 


From b0c4c0c68982156bfb94993305e69a03309395c3 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 11:47:39 +0100
Subject: regulator: wm831x-dcdc: Convert to devm_request_threaded_irq()

devm guarantees that resources are freed in the opposite order to that
in which they are registered.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/wm831x-dcdc.c | 36 ++++++++++++++----------------------
 1 file changed, 14 insertions(+), 22 deletions(-)

diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c
index 8f627503ac41..aca2fcb190fd 100644
--- a/drivers/regulator/wm831x-dcdc.c
+++ b/drivers/regulator/wm831x-dcdc.c
@@ -532,8 +532,9 @@ static int wm831x_buckv_probe(struct platform_device *pdev)
 	}
 
 	irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV"));
-	ret = request_threaded_irq(irq, NULL, wm831x_dcdc_uv_irq,
-				   IRQF_TRIGGER_RISING, dcdc->name, dcdc);
+	ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+					wm831x_dcdc_uv_irq,
+					IRQF_TRIGGER_RISING, dcdc->name, dcdc);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
 			irq, ret);
@@ -541,21 +542,19 @@ static int wm831x_buckv_probe(struct platform_device *pdev)
 	}
 
 	irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "HC"));
-	ret = request_threaded_irq(irq, NULL, wm831x_dcdc_oc_irq,
-				   IRQF_TRIGGER_RISING, dcdc->name, dcdc);
+	ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+					wm831x_dcdc_oc_irq,
+					IRQF_TRIGGER_RISING, dcdc->name, dcdc);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request HC IRQ %d: %d\n",
 			irq, ret);
-		goto err_uv;
+		goto err_regulator;
 	}
 
 	platform_set_drvdata(pdev, dcdc);
 
 	return 0;
 
-err_uv:
-	free_irq(wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV")),
-		 dcdc);
 err_regulator:
 	regulator_unregister(dcdc->regulator);
 err:
@@ -565,12 +564,7 @@ err:
 static int wm831x_buckv_remove(struct platform_device *pdev)
 {
 	struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
-	struct wm831x *wm831x = dcdc->wm831x;
 
-	free_irq(wm831x_irq(wm831x, platform_get_irq_byname(pdev, "HC")),
-			    dcdc);
-	free_irq(wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV")),
-			    dcdc);
 	regulator_unregister(dcdc->regulator);
 
 	return 0;
@@ -688,8 +682,9 @@ static int wm831x_buckp_probe(struct platform_device *pdev)
 	}
 
 	irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV"));
-	ret = request_threaded_irq(irq, NULL, wm831x_dcdc_uv_irq,
-				   IRQF_TRIGGER_RISING,	dcdc->name, dcdc);
+	ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+					wm831x_dcdc_uv_irq,
+					IRQF_TRIGGER_RISING, dcdc->name, dcdc);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
 			irq, ret);
@@ -710,8 +705,6 @@ static int wm831x_buckp_remove(struct platform_device *pdev)
 {
 	struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
 
-	free_irq(wm831x_irq(dcdc->wm831x, platform_get_irq_byname(pdev, "UV")),
-			    dcdc);
 	regulator_unregister(dcdc->regulator);
 
 	return 0;
@@ -820,9 +813,10 @@ static int wm831x_boostp_probe(struct platform_device *pdev)
 	}
 
 	irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV"));
-	ret = request_threaded_irq(irq, NULL, wm831x_dcdc_uv_irq,
-				   IRQF_TRIGGER_RISING, dcdc->name,
-				   dcdc);
+	ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+					wm831x_dcdc_uv_irq,
+					IRQF_TRIGGER_RISING, dcdc->name,
+					dcdc);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
 			irq, ret);
@@ -843,8 +837,6 @@ static int wm831x_boostp_remove(struct platform_device *pdev)
 {
 	struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
 
-	free_irq(wm831x_irq(dcdc->wm831x, platform_get_irq_byname(pdev, "UV")),
-		 dcdc);
 	regulator_unregister(dcdc->regulator);
 
 	return 0;
-- 
cgit 


From 63fb3149c8ba2b0194ba7e967f2dafc1c8c0da69 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 11:48:45 +0100
Subject: regulator: wm831x-isink: Use devm_request_threaded_irq()

devm guarantees that resources are freed in the opposite order to that in
which they are allocated.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/wm831x-isink.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/regulator/wm831x-isink.c b/drivers/regulator/wm831x-isink.c
index 4eb373de1fac..841cb52b2bb6 100644
--- a/drivers/regulator/wm831x-isink.c
+++ b/drivers/regulator/wm831x-isink.c
@@ -203,8 +203,10 @@ static int wm831x_isink_probe(struct platform_device *pdev)
 	}
 
 	irq = wm831x_irq(wm831x, platform_get_irq(pdev, 0));
-	ret = request_threaded_irq(irq, NULL, wm831x_isink_irq,
-				   IRQF_TRIGGER_RISING, isink->name, isink);
+	ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+					wm831x_isink_irq,
+					IRQF_TRIGGER_RISING, isink->name,
+					isink);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request ISINK IRQ %d: %d\n",
 			irq, ret);
@@ -225,8 +227,6 @@ static int wm831x_isink_remove(struct platform_device *pdev)
 {
 	struct wm831x_isink *isink = platform_get_drvdata(pdev);
 
-	free_irq(wm831x_irq(isink->wm831x, platform_get_irq(pdev, 0)), isink);
-
 	regulator_unregister(isink->regulator);
 
 	return 0;
-- 
cgit 


From 41c7a879d1d637c0c9731682a822b1c3162b0764 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 11:50:00 +0100
Subject: regulator: wm831x-ldo: Use devm_request_threaded_irq()

devm guarantees that resources are freed in the oposite order to that in
which they are allocated.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/wm831x-ldo.c | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c
index 1432b26ef2e9..5570f3e59170 100644
--- a/drivers/regulator/wm831x-ldo.c
+++ b/drivers/regulator/wm831x-ldo.c
@@ -288,9 +288,10 @@ static int wm831x_gp_ldo_probe(struct platform_device *pdev)
 	}
 
 	irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV"));
-	ret = request_threaded_irq(irq, NULL, wm831x_ldo_uv_irq,
-				   IRQF_TRIGGER_RISING, ldo->name,
-				   ldo);
+	ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+					wm831x_ldo_uv_irq,
+					IRQF_TRIGGER_RISING, ldo->name,
+					ldo);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
 			irq, ret);
@@ -311,8 +312,6 @@ static int wm831x_gp_ldo_remove(struct platform_device *pdev)
 {
 	struct wm831x_ldo *ldo = platform_get_drvdata(pdev);
 
-	free_irq(wm831x_irq(ldo->wm831x,
-			    platform_get_irq_byname(pdev, "UV")), ldo);
 	regulator_unregister(ldo->regulator);
 
 	return 0;
@@ -514,8 +513,9 @@ static int wm831x_aldo_probe(struct platform_device *pdev)
 	}
 
 	irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "UV"));
-	ret = request_threaded_irq(irq, NULL, wm831x_ldo_uv_irq,
-				   IRQF_TRIGGER_RISING, ldo->name, ldo);
+	ret = devm_request_threaded_irq(&pdev->dev, irq, NULL,
+					wm831x_ldo_uv_irq,
+					IRQF_TRIGGER_RISING, ldo->name, ldo);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
 			irq, ret);
@@ -536,8 +536,6 @@ static int wm831x_aldo_remove(struct platform_device *pdev)
 {
 	struct wm831x_ldo *ldo = platform_get_drvdata(pdev);
 
-	free_irq(wm831x_irq(ldo->wm831x, platform_get_irq_byname(pdev, "UV")),
-		 ldo);
 	regulator_unregister(ldo->regulator);
 
 	return 0;
-- 
cgit 


From b33e46bcdc4e598d738ed12a5a7906be4e11d786 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 11:58:26 +0100
Subject: regulator: core: Provide managed regulator registration

Many regulator drivers have a remove function that consists solely of
calling regulator_unregister() so provide a devm_regulator_register()
in order to allow this repeated code to be removed and help eliminate
error handling code.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 Documentation/driver-model/devres.txt |  1 +
 drivers/regulator/core.c              | 66 +++++++++++++++++++++++++++++++++++
 include/linux/regulator/driver.h      |  5 +++
 3 files changed, 72 insertions(+)

diff --git a/Documentation/driver-model/devres.txt b/Documentation/driver-model/devres.txt
index fcb34a5697ea..3d9c2a766230 100644
--- a/Documentation/driver-model/devres.txt
+++ b/Documentation/driver-model/devres.txt
@@ -283,6 +283,7 @@ REGULATOR
   devm_regulator_get()
   devm_regulator_put()
   devm_regulator_bulk_get()
+  devm_regulator_register()
 
 CLOCK
   devm_clk_get()
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index a01b8b3b70ca..5f995d281672 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -3492,6 +3492,44 @@ clean:
 }
 EXPORT_SYMBOL_GPL(regulator_register);
 
+static void devm_rdev_release(struct device *dev, void *res)
+{
+	regulator_unregister(*(struct regulator_dev **)res);
+}
+
+/**
+ * devm_regulator_register - Resource managed regulator_register()
+ * @regulator_desc: regulator to register
+ * @config: runtime configuration for regulator
+ *
+ * Called by regulator drivers to register a regulator.  Returns a
+ * valid pointer to struct regulator_dev on success or an ERR_PTR() on
+ * error.  The regulator will automaticall be released when the device
+ * is unbound.
+ */
+struct regulator_dev *devm_regulator_register(struct device *dev,
+				  const struct regulator_desc *regulator_desc,
+				  const struct regulator_config *config)
+{
+	struct regulator_dev **ptr, *rdev;
+
+	ptr = devres_alloc(devm_rdev_release, sizeof(*ptr),
+			   GFP_KERNEL);
+	if (!ptr)
+		return ERR_PTR(-ENOMEM);
+
+	rdev = regulator_register(regulator_desc, config);
+	if (!IS_ERR(rdev)) {
+		*ptr = rdev;
+		devres_add(dev, ptr);
+	} else {
+		devres_free(ptr);
+	}
+
+	return rdev;
+}
+EXPORT_SYMBOL_GPL(devm_regulator_register);
+
 /**
  * regulator_unregister - unregister regulator
  * @rdev: regulator to unregister
@@ -3521,6 +3559,34 @@ void regulator_unregister(struct regulator_dev *rdev)
 }
 EXPORT_SYMBOL_GPL(regulator_unregister);
 
+static int devm_rdev_match(struct device *dev, void *res, void *data)
+{
+	struct regulator_dev **r = res;
+	if (!r || !*r) {
+		WARN_ON(!r || !*r);
+		return 0;
+	}
+	return *r == data;
+}
+
+/**
+ * devm_regulator_unregister - Resource managed regulator_unregister()
+ * @regulator: regulator to free
+ *
+ * Unregister a regulator registered with devm_regulator_register().
+ * Normally this function will not need to be called and the resource
+ * management code will ensure that the resource is freed.
+ */
+void devm_regulator_unregister(struct device *dev, struct regulator_dev *rdev)
+{
+	int rc;
+
+	rc = devres_release(dev, devm_rdev_release, devm_rdev_match, rdev);
+	if (rc != 0)
+		WARN_ON(rc);
+}
+EXPORT_SYMBOL_GPL(devm_regulator_unregister);
+
 /**
  * regulator_suspend_prepare - prepare regulators for system wide suspend
  * @state: system suspend state
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 67e13aa5a478..8474c7f88745 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -334,7 +334,12 @@ struct regulator_dev {
 struct regulator_dev *
 regulator_register(const struct regulator_desc *regulator_desc,
 		   const struct regulator_config *config);
+struct regulator_dev *
+devm_regulator_register(struct device *dev,
+			const struct regulator_desc *regulator_desc,
+			const struct regulator_config *config);
 void regulator_unregister(struct regulator_dev *rdev);
+void devm_regulator_unregister(struct device *dev, struct regulator_dev *rdev);
 
 int regulator_notifier_call_chain(struct regulator_dev *rdev,
 				  unsigned long event, void *data);
-- 
cgit 


From 14ffa8882bbd991497f2f87ce80382e5a1e6eb8f Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 11:56:47 +0100
Subject: regulator: arizona-ldo1: Convert to devm_regulator_register()

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/arizona-ldo1.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/regulator/arizona-ldo1.c b/drivers/regulator/arizona-ldo1.c
index 81d8681c3195..4f6c2055f6b2 100644
--- a/drivers/regulator/arizona-ldo1.c
+++ b/drivers/regulator/arizona-ldo1.c
@@ -226,7 +226,7 @@ static int arizona_ldo1_probe(struct platform_device *pdev)
 	else
 		config.init_data = &ldo1->init_data;
 
-	ldo1->regulator = regulator_register(desc, &config);
+	ldo1->regulator = devm_regulator_register(&pdev->dev, desc, &config);
 	if (IS_ERR(ldo1->regulator)) {
 		ret = PTR_ERR(ldo1->regulator);
 		dev_err(arizona->dev, "Failed to register LDO1 supply: %d\n",
@@ -239,18 +239,8 @@ static int arizona_ldo1_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int arizona_ldo1_remove(struct platform_device *pdev)
-{
-	struct arizona_ldo1 *ldo1 = platform_get_drvdata(pdev);
-
-	regulator_unregister(ldo1->regulator);
-
-	return 0;
-}
-
 static struct platform_driver arizona_ldo1_driver = {
 	.probe = arizona_ldo1_probe,
-	.remove = arizona_ldo1_remove,
 	.driver		= {
 		.name	= "arizona-ldo1",
 		.owner	= THIS_MODULE,
-- 
cgit 


From b6b7709cf95c6f5db074f2d725ddf29b0977589f Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 11:57:00 +0100
Subject: regulator: arizona-micsupp: Convert to devm_regulator_register()

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/arizona-micsupp.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/regulator/arizona-micsupp.c b/drivers/regulator/arizona-micsupp.c
index e87536bf0bed..724706a97dc4 100644
--- a/drivers/regulator/arizona-micsupp.c
+++ b/drivers/regulator/arizona-micsupp.c
@@ -225,7 +225,9 @@ static int arizona_micsupp_probe(struct platform_device *pdev)
 	regmap_update_bits(arizona->regmap, ARIZONA_MIC_CHARGE_PUMP_1,
 			   ARIZONA_CPMIC_BYPASS, 0);
 
-	micsupp->regulator = regulator_register(&arizona_micsupp, &config);
+	micsupp->regulator = devm_regulator_register(&pdev->dev,
+						     &arizona_micsupp,
+						     &config);
 	if (IS_ERR(micsupp->regulator)) {
 		ret = PTR_ERR(micsupp->regulator);
 		dev_err(arizona->dev, "Failed to register mic supply: %d\n",
@@ -238,18 +240,8 @@ static int arizona_micsupp_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int arizona_micsupp_remove(struct platform_device *pdev)
-{
-	struct arizona_micsupp *micsupp = platform_get_drvdata(pdev);
-
-	regulator_unregister(micsupp->regulator);
-
-	return 0;
-}
-
 static struct platform_driver arizona_micsupp_driver = {
 	.probe = arizona_micsupp_probe,
-	.remove = arizona_micsupp_remove,
 	.driver		= {
 		.name	= "arizona-micsupp",
 		.owner	= THIS_MODULE,
-- 
cgit 


From b707a274455f8f80feab24b999dad9e649c98c9c Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 11:57:16 +0100
Subject: regulator: s2mps11: Convert to devm_regulator_register()

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
---
 drivers/regulator/s2mps11.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c
index 5eba2ff8c0e8..d7c241e1a173 100644
--- a/drivers/regulator/s2mps11.c
+++ b/drivers/regulator/s2mps11.c
@@ -453,27 +453,10 @@ common_reg:
 			ret = PTR_ERR(s2mps11->rdev[i]);
 			dev_err(&pdev->dev, "regulator init failed for %d\n",
 				i);
-			s2mps11->rdev[i] = NULL;
-			goto err;
+			return ret;
 		}
 	}
 
-	return 0;
-err:
-	for (i = 0; i < S2MPS11_REGULATOR_MAX; i++)
-		regulator_unregister(s2mps11->rdev[i]);
-
-	return ret;
-}
-
-static int s2mps11_pmic_remove(struct platform_device *pdev)
-{
-	struct s2mps11_info *s2mps11 = platform_get_drvdata(pdev);
-	int i;
-
-	for (i = 0; i < S2MPS11_REGULATOR_MAX; i++)
-		regulator_unregister(s2mps11->rdev[i]);
-
 	return 0;
 }
 
@@ -489,7 +472,6 @@ static struct platform_driver s2mps11_pmic_driver = {
 		.owner = THIS_MODULE,
 	},
 	.probe = s2mps11_pmic_probe,
-	.remove = s2mps11_pmic_remove,
 	.id_table = s2mps11_pmic_id,
 };
 
-- 
cgit 


From f0db475dee8fdae611364829ceb7afcd6aa02166 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 11:57:34 +0100
Subject: regulator: s5m8767: Covert to devm_regulator_register()

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Sangbeom Kim <sbkim73@samsung.com>
---
 drivers/regulator/s5m8767.c | 24 +++---------------------
 1 file changed, 3 insertions(+), 21 deletions(-)

diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c
index c24448bc43cf..2297fdf9ba7e 100644
--- a/drivers/regulator/s5m8767.c
+++ b/drivers/regulator/s5m8767.c
@@ -910,33 +910,16 @@ static int s5m8767_pmic_probe(struct platform_device *pdev)
 		config.regmap = iodev->regmap;
 		config.of_node = pdata->regulators[i].reg_node;
 
-		rdev[i] = regulator_register(&regulators[id], &config);
+		rdev[i] = devm_regulator_register(&pdev->dev, &regulators[id],
+						  &config);
 		if (IS_ERR(rdev[i])) {
 			ret = PTR_ERR(rdev[i]);
 			dev_err(s5m8767->dev, "regulator init failed for %d\n",
 					id);
-			rdev[i] = NULL;
-			goto err;
+			return ret;
 		}
 	}
 
-	return 0;
-err:
-	for (i = 0; i < s5m8767->num_regulators; i++)
-		regulator_unregister(rdev[i]);
-
-	return ret;
-}
-
-static int s5m8767_pmic_remove(struct platform_device *pdev)
-{
-	struct s5m8767_info *s5m8767 = platform_get_drvdata(pdev);
-	struct regulator_dev **rdev = s5m8767->rdev;
-	int i;
-
-	for (i = 0; i < s5m8767->num_regulators; i++)
-		regulator_unregister(rdev[i]);
-
 	return 0;
 }
 
@@ -952,7 +935,6 @@ static struct platform_driver s5m8767_pmic_driver = {
 		.owner = THIS_MODULE,
 	},
 	.probe = s5m8767_pmic_probe,
-	.remove = s5m8767_pmic_remove,
 	.id_table = s5m8767_pmic_id,
 };
 
-- 
cgit 


From d73b4cb7b3632ccd726746e9cb43002f1adf7956 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 11:58:40 +0100
Subject: regulator: wm831x-dcdc: Convert to devm_regulator_register()

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/wm831x-dcdc.c | 66 ++++++++---------------------------------
 1 file changed, 12 insertions(+), 54 deletions(-)

diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c
index aca2fcb190fd..6823e6f2b88a 100644
--- a/drivers/regulator/wm831x-dcdc.c
+++ b/drivers/regulator/wm831x-dcdc.c
@@ -523,7 +523,8 @@ static int wm831x_buckv_probe(struct platform_device *pdev)
 	config.driver_data = dcdc;
 	config.regmap = wm831x->regmap;
 
-	dcdc->regulator = regulator_register(&dcdc->desc, &config);
+	dcdc->regulator = devm_regulator_register(&pdev->dev, &dcdc->desc,
+						  &config);
 	if (IS_ERR(dcdc->regulator)) {
 		ret = PTR_ERR(dcdc->regulator);
 		dev_err(wm831x->dev, "Failed to register DCDC%d: %d\n",
@@ -538,7 +539,7 @@ static int wm831x_buckv_probe(struct platform_device *pdev)
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
 			irq, ret);
-		goto err_regulator;
+		goto err;
 	}
 
 	irq = wm831x_irq(wm831x, platform_get_irq_byname(pdev, "HC"));
@@ -548,31 +549,19 @@ static int wm831x_buckv_probe(struct platform_device *pdev)
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request HC IRQ %d: %d\n",
 			irq, ret);
-		goto err_regulator;
+		goto err;
 	}
 
 	platform_set_drvdata(pdev, dcdc);
 
 	return 0;
 
-err_regulator:
-	regulator_unregister(dcdc->regulator);
 err:
 	return ret;
 }
 
-static int wm831x_buckv_remove(struct platform_device *pdev)
-{
-	struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
-
-	regulator_unregister(dcdc->regulator);
-
-	return 0;
-}
-
 static struct platform_driver wm831x_buckv_driver = {
 	.probe = wm831x_buckv_probe,
-	.remove = wm831x_buckv_remove,
 	.driver		= {
 		.name	= "wm831x-buckv",
 		.owner	= THIS_MODULE,
@@ -673,7 +662,8 @@ static int wm831x_buckp_probe(struct platform_device *pdev)
 	config.driver_data = dcdc;
 	config.regmap = wm831x->regmap;
 
-	dcdc->regulator = regulator_register(&dcdc->desc, &config);
+	dcdc->regulator = devm_regulator_register(&pdev->dev, &dcdc->desc,
+						  &config);
 	if (IS_ERR(dcdc->regulator)) {
 		ret = PTR_ERR(dcdc->regulator);
 		dev_err(wm831x->dev, "Failed to register DCDC%d: %d\n",
@@ -688,31 +678,19 @@ static int wm831x_buckp_probe(struct platform_device *pdev)
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
 			irq, ret);
-		goto err_regulator;
+		goto err;
 	}
 
 	platform_set_drvdata(pdev, dcdc);
 
 	return 0;
 
-err_regulator:
-	regulator_unregister(dcdc->regulator);
 err:
 	return ret;
 }
 
-static int wm831x_buckp_remove(struct platform_device *pdev)
-{
-	struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
-
-	regulator_unregister(dcdc->regulator);
-
-	return 0;
-}
-
 static struct platform_driver wm831x_buckp_driver = {
 	.probe = wm831x_buckp_probe,
-	.remove = wm831x_buckp_remove,
 	.driver		= {
 		.name	= "wm831x-buckp",
 		.owner	= THIS_MODULE,
@@ -804,7 +782,8 @@ static int wm831x_boostp_probe(struct platform_device *pdev)
 	config.driver_data = dcdc;
 	config.regmap = wm831x->regmap;
 
-	dcdc->regulator = regulator_register(&dcdc->desc, &config);
+	dcdc->regulator = devm_regulator_register(&pdev->dev, &dcdc->desc,
+						  &config);
 	if (IS_ERR(dcdc->regulator)) {
 		ret = PTR_ERR(dcdc->regulator);
 		dev_err(wm831x->dev, "Failed to register DCDC%d: %d\n",
@@ -820,31 +799,19 @@ static int wm831x_boostp_probe(struct platform_device *pdev)
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
 			irq, ret);
-		goto err_regulator;
+		goto err;
 	}
 
 	platform_set_drvdata(pdev, dcdc);
 
 	return 0;
 
-err_regulator:
-	regulator_unregister(dcdc->regulator);
 err:
 	return ret;
 }
 
-static int wm831x_boostp_remove(struct platform_device *pdev)
-{
-	struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
-
-	regulator_unregister(dcdc->regulator);
-
-	return 0;
-}
-
 static struct platform_driver wm831x_boostp_driver = {
 	.probe = wm831x_boostp_probe,
-	.remove = wm831x_boostp_remove,
 	.driver		= {
 		.name	= "wm831x-boostp",
 		.owner	= THIS_MODULE,
@@ -904,7 +871,8 @@ static int wm831x_epe_probe(struct platform_device *pdev)
 	config.driver_data = dcdc;
 	config.regmap = wm831x->regmap;
 
-	dcdc->regulator = regulator_register(&dcdc->desc, &config);
+	dcdc->regulator = devm_regulator_register(&pdev->dev, &dcdc->desc,
+						  &config);
 	if (IS_ERR(dcdc->regulator)) {
 		ret = PTR_ERR(dcdc->regulator);
 		dev_err(wm831x->dev, "Failed to register EPE%d: %d\n",
@@ -920,18 +888,8 @@ err:
 	return ret;
 }
 
-static int wm831x_epe_remove(struct platform_device *pdev)
-{
-	struct wm831x_dcdc *dcdc = platform_get_drvdata(pdev);
-
-	regulator_unregister(dcdc->regulator);
-
-	return 0;
-}
-
 static struct platform_driver wm831x_epe_driver = {
 	.probe = wm831x_epe_probe,
-	.remove = wm831x_epe_remove,
 	.driver		= {
 		.name	= "wm831x-epe",
 		.owner	= THIS_MODULE,
-- 
cgit 


From af151ded1b4b22dbedd8cb1600fcaf72e3eaf31e Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 11:59:57 +0100
Subject: regulator: wm831x-isink: Convert to devm_regulator_register()

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/wm831x-isink.c | 17 +++--------------
 1 file changed, 3 insertions(+), 14 deletions(-)

diff --git a/drivers/regulator/wm831x-isink.c b/drivers/regulator/wm831x-isink.c
index 841cb52b2bb6..0339b886df5d 100644
--- a/drivers/regulator/wm831x-isink.c
+++ b/drivers/regulator/wm831x-isink.c
@@ -194,7 +194,8 @@ static int wm831x_isink_probe(struct platform_device *pdev)
 	config.init_data = pdata->isink[id];
 	config.driver_data = isink;
 
-	isink->regulator = regulator_register(&isink->desc, &config);
+	isink->regulator = devm_regulator_register(&pdev->dev, &isink->desc,
+						   &config);
 	if (IS_ERR(isink->regulator)) {
 		ret = PTR_ERR(isink->regulator);
 		dev_err(wm831x->dev, "Failed to register ISINK%d: %d\n",
@@ -210,31 +211,19 @@ static int wm831x_isink_probe(struct platform_device *pdev)
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request ISINK IRQ %d: %d\n",
 			irq, ret);
-		goto err_regulator;
+		goto err;
 	}
 
 	platform_set_drvdata(pdev, isink);
 
 	return 0;
 
-err_regulator:
-	regulator_unregister(isink->regulator);
 err:
 	return ret;
 }
 
-static int wm831x_isink_remove(struct platform_device *pdev)
-{
-	struct wm831x_isink *isink = platform_get_drvdata(pdev);
-
-	regulator_unregister(isink->regulator);
-
-	return 0;
-}
-
 static struct platform_driver wm831x_isink_driver = {
 	.probe = wm831x_isink_probe,
-	.remove = wm831x_isink_remove,
 	.driver		= {
 		.name	= "wm831x-isink",
 		.owner	= THIS_MODULE,
-- 
cgit 


From fc7c60e390c9b99b28d078c27360cb6cd688cfd3 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 12:00:17 +0100
Subject: regulator: wm831x-ldo: Convert to devm_regulator_register()

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/wm831x-ldo.c | 47 +++++++-----------------------------------
 1 file changed, 8 insertions(+), 39 deletions(-)

diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c
index 5570f3e59170..2be72fe36535 100644
--- a/drivers/regulator/wm831x-ldo.c
+++ b/drivers/regulator/wm831x-ldo.c
@@ -279,7 +279,8 @@ static int wm831x_gp_ldo_probe(struct platform_device *pdev)
 	config.driver_data = ldo;
 	config.regmap = wm831x->regmap;
 
-	ldo->regulator = regulator_register(&ldo->desc, &config);
+	ldo->regulator = devm_regulator_register(&pdev->dev, &ldo->desc,
+						 &config);
 	if (IS_ERR(ldo->regulator)) {
 		ret = PTR_ERR(ldo->regulator);
 		dev_err(wm831x->dev, "Failed to register LDO%d: %d\n",
@@ -295,31 +296,19 @@ static int wm831x_gp_ldo_probe(struct platform_device *pdev)
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
 			irq, ret);
-		goto err_regulator;
+		goto err;
 	}
 
 	platform_set_drvdata(pdev, ldo);
 
 	return 0;
 
-err_regulator:
-	regulator_unregister(ldo->regulator);
 err:
 	return ret;
 }
 
-static int wm831x_gp_ldo_remove(struct platform_device *pdev)
-{
-	struct wm831x_ldo *ldo = platform_get_drvdata(pdev);
-
-	regulator_unregister(ldo->regulator);
-
-	return 0;
-}
-
 static struct platform_driver wm831x_gp_ldo_driver = {
 	.probe = wm831x_gp_ldo_probe,
-	.remove = wm831x_gp_ldo_remove,
 	.driver		= {
 		.name	= "wm831x-ldo",
 		.owner	= THIS_MODULE,
@@ -504,7 +493,8 @@ static int wm831x_aldo_probe(struct platform_device *pdev)
 	config.driver_data = ldo;
 	config.regmap = wm831x->regmap;
 
-	ldo->regulator = regulator_register(&ldo->desc, &config);
+	ldo->regulator = devm_regulator_register(&pdev->dev, &ldo->desc,
+						 &config);
 	if (IS_ERR(ldo->regulator)) {
 		ret = PTR_ERR(ldo->regulator);
 		dev_err(wm831x->dev, "Failed to register LDO%d: %d\n",
@@ -519,31 +509,19 @@ static int wm831x_aldo_probe(struct platform_device *pdev)
 	if (ret != 0) {
 		dev_err(&pdev->dev, "Failed to request UV IRQ %d: %d\n",
 			irq, ret);
-		goto err_regulator;
+		goto err;
 	}
 
 	platform_set_drvdata(pdev, ldo);
 
 	return 0;
 
-err_regulator:
-	regulator_unregister(ldo->regulator);
 err:
 	return ret;
 }
 
-static int wm831x_aldo_remove(struct platform_device *pdev)
-{
-	struct wm831x_ldo *ldo = platform_get_drvdata(pdev);
-
-	regulator_unregister(ldo->regulator);
-
-	return 0;
-}
-
 static struct platform_driver wm831x_aldo_driver = {
 	.probe = wm831x_aldo_probe,
-	.remove = wm831x_aldo_remove,
 	.driver		= {
 		.name	= "wm831x-aldo",
 		.owner	= THIS_MODULE,
@@ -661,7 +639,8 @@ static int wm831x_alive_ldo_probe(struct platform_device *pdev)
 	config.driver_data = ldo;
 	config.regmap = wm831x->regmap;
 
-	ldo->regulator = regulator_register(&ldo->desc, &config);
+	ldo->regulator = devm_regulator_register(&pdev->dev, &ldo->desc,
+						 &config);
 	if (IS_ERR(ldo->regulator)) {
 		ret = PTR_ERR(ldo->regulator);
 		dev_err(wm831x->dev, "Failed to register LDO%d: %d\n",
@@ -677,18 +656,8 @@ err:
 	return ret;
 }
 
-static int wm831x_alive_ldo_remove(struct platform_device *pdev)
-{
-	struct wm831x_ldo *ldo = platform_get_drvdata(pdev);
-
-	regulator_unregister(ldo->regulator);
-
-	return 0;
-}
-
 static struct platform_driver wm831x_alive_ldo_driver = {
 	.probe = wm831x_alive_ldo_probe,
-	.remove = wm831x_alive_ldo_remove,
 	.driver		= {
 		.name	= "wm831x-alive-ldo",
 		.owner	= THIS_MODULE,
-- 
cgit 


From e57e54693371fe1530f376c8a67c33d19bb2a0dc Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 12:00:37 +0100
Subject: regulator: wm8350: Convert to devm_regulator_register()

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/wm8350-regulator.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c
index 835b5f0f344e..a438e937cfa0 100644
--- a/drivers/regulator/wm8350-regulator.c
+++ b/drivers/regulator/wm8350-regulator.c
@@ -1206,7 +1206,8 @@ static int wm8350_regulator_probe(struct platform_device *pdev)
 	config.regmap = wm8350->regmap;
 
 	/* register regulator */
-	rdev = regulator_register(&wm8350_reg[pdev->id], &config);
+	rdev = devm_regulator_register(&pdev->dev, &wm8350_reg[pdev->id],
+				       &config);
 	if (IS_ERR(rdev)) {
 		dev_err(&pdev->dev, "failed to register %s\n",
 			wm8350_reg[pdev->id].name);
@@ -1217,7 +1218,6 @@ static int wm8350_regulator_probe(struct platform_device *pdev)
 	ret = wm8350_register_irq(wm8350, wm8350_reg[pdev->id].irq,
 				  pmic_uv_handler, 0, "UV", rdev);
 	if (ret < 0) {
-		regulator_unregister(rdev);
 		dev_err(&pdev->dev, "failed to register regulator %s IRQ\n",
 			wm8350_reg[pdev->id].name);
 		return ret;
@@ -1233,8 +1233,6 @@ static int wm8350_regulator_remove(struct platform_device *pdev)
 
 	wm8350_free_irq(wm8350, wm8350_reg[pdev->id].irq, rdev);
 
-	regulator_unregister(rdev);
-
 	return 0;
 }
 
-- 
cgit 


From eb8b3c8360408b78ca99492f8c1fec080c75dd71 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 12:00:57 +0100
Subject: regulator: wm8400: Convert to devm_regulator_register()

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/wm8400-regulator.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/regulator/wm8400-regulator.c b/drivers/regulator/wm8400-regulator.c
index 58f51bec13f2..870b52f709bc 100644
--- a/drivers/regulator/wm8400-regulator.c
+++ b/drivers/regulator/wm8400-regulator.c
@@ -219,7 +219,8 @@ static int wm8400_regulator_probe(struct platform_device *pdev)
 	config.driver_data = wm8400;
 	config.regmap = wm8400->regmap;
 
-	rdev = regulator_register(&regulators[pdev->id], &config);
+	rdev = devm_regulator_register(&pdev->dev, &regulators[pdev->id],
+				       &config);
 	if (IS_ERR(rdev))
 		return PTR_ERR(rdev);
 
@@ -228,21 +229,11 @@ static int wm8400_regulator_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int wm8400_regulator_remove(struct platform_device *pdev)
-{
-	struct regulator_dev *rdev = platform_get_drvdata(pdev);
-
-	regulator_unregister(rdev);
-
-	return 0;
-}
-
 static struct platform_driver wm8400_regulator_driver = {
 	.driver = {
 		.name = "wm8400-regulator",
 	},
 	.probe = wm8400_regulator_probe,
-	.remove = wm8400_regulator_remove,
 };
 
 /**
-- 
cgit 


From 9e2bfbbdf203c954a306a5e402a84c24622c55b0 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 12:01:12 +0100
Subject: regulator: wm8994: Convert to devm_regulator_register

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/wm8994-regulator.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/regulator/wm8994-regulator.c b/drivers/regulator/wm8994-regulator.c
index 5ee2a208457c..71c5911f2e71 100644
--- a/drivers/regulator/wm8994-regulator.c
+++ b/drivers/regulator/wm8994-regulator.c
@@ -165,7 +165,9 @@ static int wm8994_ldo_probe(struct platform_device *pdev)
 		ldo->init_data = *pdata->ldo[id].init_data;
 	}
 
-	ldo->regulator = regulator_register(&wm8994_ldo_desc[id], &config);
+	ldo->regulator = devm_regulator_register(&pdev->dev,
+						 &wm8994_ldo_desc[id],
+						 &config);
 	if (IS_ERR(ldo->regulator)) {
 		ret = PTR_ERR(ldo->regulator);
 		dev_err(wm8994->dev, "Failed to register LDO%d: %d\n",
@@ -181,18 +183,8 @@ err:
 	return ret;
 }
 
-static int wm8994_ldo_remove(struct platform_device *pdev)
-{
-	struct wm8994_ldo *ldo = platform_get_drvdata(pdev);
-
-	regulator_unregister(ldo->regulator);
-
-	return 0;
-}
-
 static struct platform_driver wm8994_ldo_driver = {
 	.probe = wm8994_ldo_probe,
-	.remove = wm8994_ldo_remove,
 	.driver		= {
 		.name	= "wm8994-ldo",
 		.owner	= THIS_MODULE,
-- 
cgit 


From bcb5fe44875b09756c5e81925de19f9ca5bb9117 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Tue, 3 Sep 2013 14:17:36 +0800
Subject: regulator: 88pm8607: Convert to devm_regulator_register

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/88pm8607.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/regulator/88pm8607.c b/drivers/regulator/88pm8607.c
index 70230974468c..f704d83c93c4 100644
--- a/drivers/regulator/88pm8607.c
+++ b/drivers/regulator/88pm8607.c
@@ -391,7 +391,8 @@ static int pm8607_regulator_probe(struct platform_device *pdev)
 	else
 		config.regmap = chip->regmap_companion;
 
-	info->regulator = regulator_register(&info->desc, &config);
+	info->regulator = devm_regulator_register(&pdev->dev, &info->desc,
+						  &config);
 	if (IS_ERR(info->regulator)) {
 		dev_err(&pdev->dev, "failed to register regulator %s\n",
 			info->desc.name);
@@ -402,14 +403,6 @@ static int pm8607_regulator_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int pm8607_regulator_remove(struct platform_device *pdev)
-{
-	struct pm8607_regulator_info *info = platform_get_drvdata(pdev);
-
-	regulator_unregister(info->regulator);
-	return 0;
-}
-
 static struct platform_device_id pm8607_regulator_driver_ids[] = {
 	{
 		.name	= "88pm860x-regulator",
@@ -428,7 +421,6 @@ static struct platform_driver pm8607_regulator_driver = {
 		.owner	= THIS_MODULE,
 	},
 	.probe		= pm8607_regulator_probe,
-	.remove		= pm8607_regulator_remove,
 	.id_table	= pm8607_regulator_driver_ids,
 };
 
-- 
cgit 


From b1a613d505c53ad4f4af4cf228841a1784a50011 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Tue, 3 Sep 2013 14:19:00 +0800
Subject: regulator: aat2870: Convert to devm_regulator_register

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Jinyoung Park <jinyoungp@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/aat2870-regulator.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/regulator/aat2870-regulator.c b/drivers/regulator/aat2870-regulator.c
index 881159dfcb5e..f70a9bfa5ff2 100644
--- a/drivers/regulator/aat2870-regulator.c
+++ b/drivers/regulator/aat2870-regulator.c
@@ -176,7 +176,7 @@ static int aat2870_regulator_probe(struct platform_device *pdev)
 	config.driver_data = ri;
 	config.init_data = dev_get_platdata(&pdev->dev);
 
-	rdev = regulator_register(&ri->desc, &config);
+	rdev = devm_regulator_register(&pdev->dev, &ri->desc, &config);
 	if (IS_ERR(rdev)) {
 		dev_err(&pdev->dev, "Failed to register regulator %s\n",
 			ri->desc.name);
@@ -187,21 +187,12 @@ static int aat2870_regulator_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int aat2870_regulator_remove(struct platform_device *pdev)
-{
-	struct regulator_dev *rdev = platform_get_drvdata(pdev);
-
-	regulator_unregister(rdev);
-	return 0;
-}
-
 static struct platform_driver aat2870_regulator_driver = {
 	.driver = {
 		.name	= "aat2870-regulator",
 		.owner	= THIS_MODULE,
 	},
 	.probe	= aat2870_regulator_probe,
-	.remove	= aat2870_regulator_remove,
 };
 
 static int __init aat2870_regulator_init(void)
-- 
cgit 


From 9b2cdac712448ca182dabeffd36bd532c53f3935 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Tue, 3 Sep 2013 14:20:25 +0800
Subject: regulator: ad5398: Convert to devm_regulator_register

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/ad5398.c | 19 +++----------------
 1 file changed, 3 insertions(+), 16 deletions(-)

diff --git a/drivers/regulator/ad5398.c b/drivers/regulator/ad5398.c
index b2b203cb6b2f..48016a050d5f 100644
--- a/drivers/regulator/ad5398.c
+++ b/drivers/regulator/ad5398.c
@@ -219,7 +219,6 @@ static int ad5398_probe(struct i2c_client *client,
 	struct ad5398_chip_info *chip;
 	const struct ad5398_current_data_format *df =
 			(struct ad5398_current_data_format *)id->driver_data;
-	int ret;
 
 	if (!init_data)
 		return -EINVAL;
@@ -240,33 +239,21 @@ static int ad5398_probe(struct i2c_client *client,
 	chip->current_offset = df->current_offset;
 	chip->current_mask = (chip->current_level - 1) << chip->current_offset;
 
-	chip->rdev = regulator_register(&ad5398_reg, &config);
+	chip->rdev = devm_regulator_register(&client->dev, &ad5398_reg,
+					     &config);
 	if (IS_ERR(chip->rdev)) {
-		ret = PTR_ERR(chip->rdev);
 		dev_err(&client->dev, "failed to register %s %s\n",
 			id->name, ad5398_reg.name);
-		goto err;
+		return PTR_ERR(chip->rdev);
 	}
 
 	i2c_set_clientdata(client, chip);
 	dev_dbg(&client->dev, "%s regulator driver is registered.\n", id->name);
 	return 0;
-
-err:
-	return ret;
-}
-
-static int ad5398_remove(struct i2c_client *client)
-{
-	struct ad5398_chip_info *chip = i2c_get_clientdata(client);
-
-	regulator_unregister(chip->rdev);
-	return 0;
 }
 
 static struct i2c_driver ad5398_driver = {
 	.probe = ad5398_probe,
-	.remove = ad5398_remove,
 	.driver		= {
 		.name	= "ad5398",
 	},
-- 
cgit 


From 27447c934a9e6ea7753f61211ef06327915ed0d2 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Tue, 3 Sep 2013 14:22:00 +0800
Subject: regulator: as3711: Convert to devm_regulator_register

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/as3711-regulator.c | 22 ++--------------------
 1 file changed, 2 insertions(+), 20 deletions(-)

diff --git a/drivers/regulator/as3711-regulator.c b/drivers/regulator/as3711-regulator.c
index 8406cd745da2..fb27e6c8887c 100644
--- a/drivers/regulator/as3711-regulator.c
+++ b/drivers/regulator/as3711-regulator.c
@@ -273,33 +273,16 @@ static int as3711_regulator_probe(struct platform_device *pdev)
 		config.regmap = as3711->regmap;
 		config.of_node = of_node[id];
 
-		rdev = regulator_register(&ri->desc, &config);
+		rdev = devm_regulator_register(&pdev->dev, &ri->desc, &config);
 		if (IS_ERR(rdev)) {
 			dev_err(&pdev->dev, "Failed to register regulator %s\n",
 				ri->desc.name);
-			ret = PTR_ERR(rdev);
-			goto eregreg;
+			return PTR_ERR(rdev);
 		}
 		reg->rdev = rdev;
 	}
 	platform_set_drvdata(pdev, regs);
 	return 0;
-
-eregreg:
-	while (--id >= 0)
-		regulator_unregister(regs[id].rdev);
-
-	return ret;
-}
-
-static int as3711_regulator_remove(struct platform_device *pdev)
-{
-	struct as3711_regulator *regs = platform_get_drvdata(pdev);
-	int id;
-
-	for (id = 0; id < AS3711_REGULATOR_NUM; ++id)
-		regulator_unregister(regs[id].rdev);
-	return 0;
 }
 
 static struct platform_driver as3711_regulator_driver = {
@@ -308,7 +291,6 @@ static struct platform_driver as3711_regulator_driver = {
 		.owner	= THIS_MODULE,
 	},
 	.probe		= as3711_regulator_probe,
-	.remove		= as3711_regulator_remove,
 };
 
 static int __init as3711_regulator_init(void)
-- 
cgit 


From 4e8d79355da117b4be7ea6f870eabc7f18740f2c Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Tue, 3 Sep 2013 14:23:14 +0800
Subject: regulator: da903x: Convert to devm_regulator_register

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/da903x.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/regulator/da903x.c b/drivers/regulator/da903x.c
index f06854cf8cf5..c61d96e9d925 100644
--- a/drivers/regulator/da903x.c
+++ b/drivers/regulator/da903x.c
@@ -463,7 +463,7 @@ static int da903x_regulator_probe(struct platform_device *pdev)
 	config.init_data = dev_get_platdata(&pdev->dev);
 	config.driver_data = ri;
 
-	rdev = regulator_register(&ri->desc, &config);
+	rdev = devm_regulator_register(&pdev->dev, &ri->desc, &config);
 	if (IS_ERR(rdev)) {
 		dev_err(&pdev->dev, "failed to register regulator %s\n",
 				ri->desc.name);
@@ -474,21 +474,12 @@ static int da903x_regulator_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int da903x_regulator_remove(struct platform_device *pdev)
-{
-	struct regulator_dev *rdev = platform_get_drvdata(pdev);
-
-	regulator_unregister(rdev);
-	return 0;
-}
-
 static struct platform_driver da903x_regulator_driver = {
 	.driver	= {
 		.name	= "da903x-regulator",
 		.owner	= THIS_MODULE,
 	},
 	.probe		= da903x_regulator_probe,
-	.remove		= da903x_regulator_remove,
 };
 
 static int __init da903x_regulator_init(void)
-- 
cgit 


From ea49a5ebbbfa982c893d4d6cf68feeb829f58324 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Tue, 3 Sep 2013 14:24:46 +0800
Subject: regulator: da9052: Convert to devm_regulator_register

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/da9052-regulator.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/regulator/da9052-regulator.c b/drivers/regulator/da9052-regulator.c
index 1e4d483f6163..c427e42472e8 100644
--- a/drivers/regulator/da9052-regulator.c
+++ b/drivers/regulator/da9052-regulator.c
@@ -389,8 +389,9 @@ static int da9052_regulator_probe(struct platform_device *pdev)
 #endif
 	}
 
-	regulator->rdev = regulator_register(&regulator->info->reg_desc,
-					     &config);
+	regulator->rdev = devm_regulator_register(&pdev->dev,
+						  &regulator->info->reg_desc,
+						  &config);
 	if (IS_ERR(regulator->rdev)) {
 		dev_err(&pdev->dev, "failed to register regulator %s\n",
 			regulator->info->reg_desc.name);
@@ -402,17 +403,8 @@ static int da9052_regulator_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int da9052_regulator_remove(struct platform_device *pdev)
-{
-	struct da9052_regulator *regulator = platform_get_drvdata(pdev);
-
-	regulator_unregister(regulator->rdev);
-	return 0;
-}
-
 static struct platform_driver da9052_regulator_driver = {
 	.probe = da9052_regulator_probe,
-	.remove = da9052_regulator_remove,
 	.driver = {
 		.name = "da9052-regulator",
 		.owner = THIS_MODULE,
-- 
cgit 


From 0d3288063b4e45335ea011b89d0850a0fd76096c Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Tue, 3 Sep 2013 14:26:10 +0800
Subject: regulator: da9055: Convert to devm_regulator_register

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/da9055-regulator.c | 24 +++++-------------------
 1 file changed, 5 insertions(+), 19 deletions(-)

diff --git a/drivers/regulator/da9055-regulator.c b/drivers/regulator/da9055-regulator.c
index 77b53e5a231c..7f340206d329 100644
--- a/drivers/regulator/da9055-regulator.c
+++ b/drivers/regulator/da9055-regulator.c
@@ -564,13 +564,13 @@ static int da9055_regulator_probe(struct platform_device *pdev)
 	if (ret < 0)
 		return ret;
 
-	regulator->rdev = regulator_register(&regulator->info->reg_desc,
-					     &config);
+	regulator->rdev = devm_regulator_register(&pdev->dev,
+						  &regulator->info->reg_desc,
+						  &config);
 	if (IS_ERR(regulator->rdev)) {
 		dev_err(&pdev->dev, "Failed to register regulator %s\n",
 			regulator->info->reg_desc.name);
-		ret = PTR_ERR(regulator->rdev);
-		return ret;
+		return PTR_ERR(regulator->rdev);
 	}
 
 	/* Only LDO 5 and 6 has got the over current interrupt */
@@ -588,32 +588,18 @@ static int da9055_regulator_probe(struct platform_device *pdev)
 				dev_err(&pdev->dev,
 				"Failed to request Regulator IRQ %d: %d\n",
 				irq, ret);
-				goto err_regulator;
+				return ret;
 			}
 		}
 	}
 
 	platform_set_drvdata(pdev, regulator);
 
-	return 0;
-
-err_regulator:
-	regulator_unregister(regulator->rdev);
-	return ret;
-}
-
-static int da9055_regulator_remove(struct platform_device *pdev)
-{
-	struct da9055_regulator *regulator = platform_get_drvdata(pdev);
-
-	regulator_unregister(regulator->rdev);
-
 	return 0;
 }
 
 static struct platform_driver da9055_regulator_driver = {
 	.probe = da9055_regulator_probe,
-	.remove = da9055_regulator_remove,
 	.driver = {
 		.name = "da9055-regulator",
 		.owner = THIS_MODULE,
-- 
cgit 


From b15f5f7603fe9963e2201874f6e6c6cc0410b4d1 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Tue, 3 Sep 2013 14:27:56 +0800
Subject: regulator: fan53555: Convert to devm_regulator_register

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/fan53555.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/regulator/fan53555.c b/drivers/regulator/fan53555.c
index 70b7220c587f..7ca3d9e3b0fe 100644
--- a/drivers/regulator/fan53555.c
+++ b/drivers/regulator/fan53555.c
@@ -218,9 +218,8 @@ static int fan53555_regulator_register(struct fan53555_device_info *di,
 	rdesc->vsel_mask = VSEL_NSEL_MASK;
 	rdesc->owner = THIS_MODULE;
 
-	di->rdev = regulator_register(&di->desc, config);
+	di->rdev = devm_regulator_register(di->dev, &di->desc, config);
 	return PTR_ERR_OR_ZERO(di->rdev);
-
 }
 
 static struct regmap_config fan53555_regmap_config = {
@@ -291,14 +290,6 @@ static int fan53555_regulator_probe(struct i2c_client *client,
 
 }
 
-static int fan53555_regulator_remove(struct i2c_client *client)
-{
-	struct fan53555_device_info *di = i2c_get_clientdata(client);
-
-	regulator_unregister(di->rdev);
-	return 0;
-}
-
 static const struct i2c_device_id fan53555_id[] = {
 	{"fan53555", -1},
 	{ },
@@ -309,7 +300,6 @@ static struct i2c_driver fan53555_regulator_driver = {
 		.name = "fan53555-regulator",
 	},
 	.probe = fan53555_regulator_probe,
-	.remove = fan53555_regulator_remove,
 	.id_table = fan53555_id,
 };
 
-- 
cgit 


From d55cd794d6ae9d0730c0b039c0a2d5d0e5ff12c4 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 12:12:15 +0530
Subject: regulator: s2mps11: Use devm_regulator_register

Commit e398b51a ("regulator: s2mps11: Convert to devm_regulator_register()")
intended to do this conversion. However the actual conversion to devm_* got
missed out. Fix this.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/s2mps11.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c
index d7c241e1a173..333677d68d0e 100644
--- a/drivers/regulator/s2mps11.c
+++ b/drivers/regulator/s2mps11.c
@@ -448,7 +448,8 @@ common_reg:
 			config.of_node = rdata[i].of_node;
 		}
 
-		s2mps11->rdev[i] = regulator_register(&regulators[i], &config);
+		s2mps11->rdev[i] = devm_regulator_register(&pdev->dev,
+						&regulators[i], &config);
 		if (IS_ERR(s2mps11->rdev[i])) {
 			ret = PTR_ERR(s2mps11->rdev[i]);
 			dev_err(&pdev->dev, "regulator init failed for %d\n",
-- 
cgit 


From 44815b4a619065f510cffa2976722e78381d4fd2 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 11:07:54 +0530
Subject: regulator: max77686: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/max77686.c | 22 +++-------------------
 1 file changed, 3 insertions(+), 19 deletions(-)

diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c
index f563057e5690..de5b30ea823c 100644
--- a/drivers/regulator/max77686.c
+++ b/drivers/regulator/max77686.c
@@ -478,31 +478,16 @@ static int max77686_pmic_probe(struct platform_device *pdev)
 		config.of_node = pdata->regulators[i].of_node;
 
 		max77686->opmode[i] = regulators[i].enable_mask;
-		max77686->rdev[i] = regulator_register(&regulators[i], &config);
+		max77686->rdev[i] = devm_regulator_register(&pdev->dev,
+						&regulators[i], &config);
 		if (IS_ERR(max77686->rdev[i])) {
-			ret = PTR_ERR(max77686->rdev[i]);
 			dev_err(&pdev->dev,
 				"regulator init failed for %d\n", i);
 			max77686->rdev[i] = NULL;
-			goto err;
+			return PTR_ERR(max77686->rdev[i]);
 		}
 	}
 
-	return 0;
-err:
-	while (--i >= 0)
-		regulator_unregister(max77686->rdev[i]);
-	return ret;
-}
-
-static int max77686_pmic_remove(struct platform_device *pdev)
-{
-	struct max77686_data *max77686 = platform_get_drvdata(pdev);
-	int i;
-
-	for (i = 0; i < MAX77686_REGULATORS; i++)
-		regulator_unregister(max77686->rdev[i]);
-
 	return 0;
 }
 
@@ -518,7 +503,6 @@ static struct platform_driver max77686_pmic_driver = {
 		.owner = THIS_MODULE,
 	},
 	.probe = max77686_pmic_probe,
-	.remove = max77686_pmic_remove,
 	.id_table = max77686_pmic_id,
 };
 
-- 
cgit 


From 249cc1f21ee22d9cfead5ae552d91b9669d16c83 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 11:07:55 +0530
Subject: regulator: max1586: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/max1586.c | 26 +++++---------------------
 1 file changed, 5 insertions(+), 21 deletions(-)

diff --git a/drivers/regulator/max1586.c b/drivers/regulator/max1586.c
index 3a599ee0a456..e242dd316d36 100644
--- a/drivers/regulator/max1586.c
+++ b/drivers/regulator/max1586.c
@@ -166,7 +166,7 @@ static int max1586_pmic_probe(struct i2c_client *client,
 	struct max1586_platform_data *pdata = dev_get_platdata(&client->dev);
 	struct regulator_config config = { };
 	struct max1586_data *max1586;
-	int i, id, ret = -ENOMEM;
+	int i, id;
 
 	max1586 = devm_kzalloc(&client->dev, sizeof(struct max1586_data) +
 			sizeof(struct regulator_dev *) * (MAX1586_V6 + 1),
@@ -193,7 +193,7 @@ static int max1586_pmic_probe(struct i2c_client *client,
 			continue;
 		if (id < MAX1586_V3 || id > MAX1586_V6) {
 			dev_err(&client->dev, "invalid regulator id %d\n", id);
-			goto err;
+			return -EINVAL;
 		}
 
 		if (id == MAX1586_V3) {
@@ -207,33 +207,18 @@ static int max1586_pmic_probe(struct i2c_client *client,
 		config.init_data = pdata->subdevs[i].platform_data;
 		config.driver_data = max1586;
 
-		rdev[i] = regulator_register(&max1586_reg[id], &config);
+		rdev[i] = devm_regulator_register(&client->dev,
+						  &max1586_reg[id], &config);
 		if (IS_ERR(rdev[i])) {
-			ret = PTR_ERR(rdev[i]);
 			dev_err(&client->dev, "failed to register %s\n",
 				max1586_reg[id].name);
-			goto err;
+			return PTR_ERR(rdev[i]);
 		}
 	}
 
 	i2c_set_clientdata(client, max1586);
 	dev_info(&client->dev, "Maxim 1586 regulator driver loaded\n");
 	return 0;
-
-err:
-	while (--i >= 0)
-		regulator_unregister(rdev[i]);
-	return ret;
-}
-
-static int max1586_pmic_remove(struct i2c_client *client)
-{
-	struct max1586_data *max1586 = i2c_get_clientdata(client);
-	int i;
-
-	for (i = 0; i <= MAX1586_V6; i++)
-		regulator_unregister(max1586->rdev[i]);
-	return 0;
 }
 
 static const struct i2c_device_id max1586_id[] = {
@@ -244,7 +229,6 @@ MODULE_DEVICE_TABLE(i2c, max1586_id);
 
 static struct i2c_driver max1586_pmic_driver = {
 	.probe = max1586_pmic_probe,
-	.remove = max1586_pmic_remove,
 	.driver		= {
 		.name	= "max1586",
 		.owner	= THIS_MODULE,
-- 
cgit 


From 027a27545cc09dfc392d056437c5eb3f260d7e43 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 11:07:56 +0530
Subject: regulator: max77693: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/max77693.c | 28 ++++------------------------
 1 file changed, 4 insertions(+), 24 deletions(-)

diff --git a/drivers/regulator/max77693.c b/drivers/regulator/max77693.c
index ce4b96c15eba..2054ae1c496e 100644
--- a/drivers/regulator/max77693.c
+++ b/drivers/regulator/max77693.c
@@ -230,7 +230,7 @@ static int max77693_pmic_probe(struct platform_device *pdev)
 	struct max77693_dev *iodev = dev_get_drvdata(pdev->dev.parent);
 	struct max77693_pmic_dev *max77693_pmic;
 	struct max77693_regulator_data *rdata = NULL;
-	int num_rdata, i, ret;
+	int num_rdata, i;
 	struct regulator_config config;
 
 	num_rdata = max77693_pmic_init_rdata(&pdev->dev, &rdata);
@@ -266,35 +266,16 @@ static int max77693_pmic_probe(struct platform_device *pdev)
 		config.init_data = rdata[i].initdata;
 		config.of_node = rdata[i].of_node;
 
-		max77693_pmic->rdev[i] = regulator_register(&regulators[id],
-							    &config);
+		max77693_pmic->rdev[i] = devm_regulator_register(&pdev->dev,
+						&regulators[id], &config);
 		if (IS_ERR(max77693_pmic->rdev[i])) {
-			ret = PTR_ERR(max77693_pmic->rdev[i]);
 			dev_err(max77693_pmic->dev,
 				"Failed to initialize regulator-%d\n", id);
 			max77693_pmic->rdev[i] = NULL;
-			goto err;
+			return PTR_ERR(max77693_pmic->rdev[i]);
 		}
 	}
 
-	return 0;
- err:
-	while (--i >= 0)
-		regulator_unregister(max77693_pmic->rdev[i]);
-
-	return ret;
-}
-
-static int max77693_pmic_remove(struct platform_device *pdev)
-{
-	struct max77693_pmic_dev *max77693_pmic = platform_get_drvdata(pdev);
-	struct regulator_dev **rdev = max77693_pmic->rdev;
-	int i;
-
-	for (i = 0; i < max77693_pmic->num_regulators; i++)
-		if (rdev[i])
-			regulator_unregister(rdev[i]);
-
 	return 0;
 }
 
@@ -311,7 +292,6 @@ static struct platform_driver max77693_pmic_driver = {
 		   .owner = THIS_MODULE,
 		   },
 	.probe = max77693_pmic_probe,
-	.remove = max77693_pmic_remove,
 	.id_table = max77693_pmic_id,
 };
 
-- 
cgit 


From e453f92eec6d72db0d7fe6bab2e0a710dc6cd927 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 11:07:57 +0530
Subject: regulator: max8649: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/max8649.c | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/regulator/max8649.c b/drivers/regulator/max8649.c
index 19c6f08eafd5..7f049c92ee52 100644
--- a/drivers/regulator/max8649.c
+++ b/drivers/regulator/max8649.c
@@ -234,7 +234,8 @@ static int max8649_regulator_probe(struct i2c_client *client,
 	config.driver_data = info;
 	config.regmap = info->regmap;
 
-	info->regulator = regulator_register(&dcdc_desc, &config);
+	info->regulator = devm_regulator_register(&client->dev, &dcdc_desc,
+						  &config);
 	if (IS_ERR(info->regulator)) {
 		dev_err(info->dev, "failed to register regulator %s\n",
 			dcdc_desc.name);
@@ -244,16 +245,6 @@ static int max8649_regulator_probe(struct i2c_client *client,
 	return 0;
 }
 
-static int max8649_regulator_remove(struct i2c_client *client)
-{
-	struct max8649_regulator_info *info = i2c_get_clientdata(client);
-
-	if (info)
-		regulator_unregister(info->regulator);
-
-	return 0;
-}
-
 static const struct i2c_device_id max8649_id[] = {
 	{ "max8649", 0 },
 	{ }
@@ -262,7 +253,6 @@ MODULE_DEVICE_TABLE(i2c, max8649_id);
 
 static struct i2c_driver max8649_driver = {
 	.probe		= max8649_regulator_probe,
-	.remove		= max8649_regulator_remove,
 	.driver		= {
 		.name	= "max8649",
 	},
-- 
cgit 


From dcfb6b56f18b5d9eff9b784d4e5b4a085f149de2 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 11:07:58 +0530
Subject: regulator: max8660: Use devm_regulator_register

devm_* simplifies the code.

[Fixups from rebase onto v3.12 code -- broonie]
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/max8660.c | 30 +++++++-----------------------
 1 file changed, 7 insertions(+), 23 deletions(-)

diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c
index 144bcacd734d..8d94d3d7f97f 100644
--- a/drivers/regulator/max8660.c
+++ b/drivers/regulator/max8660.c
@@ -439,7 +439,7 @@ static int max8660_probe(struct i2c_client *client,
 	for (i = 0; i < pdata->num_subdevs; i++) {
 
 		if (!pdata->subdevs[i].platform_data)
-			goto err_out;
+			return ret;
 
 		boot_on = pdata->subdevs[i].platform_data->constraints.boot_on;
 
@@ -465,7 +465,7 @@ static int max8660_probe(struct i2c_client *client,
 		case MAX8660_V7:
 			if (type == MAX8661) {
 				dev_err(dev, "Regulator not on this chip!\n");
-				goto err_out;
+				return -EINVAL;
 			}
 
 			if (boot_on)
@@ -475,7 +475,7 @@ static int max8660_probe(struct i2c_client *client,
 		default:
 			dev_err(dev, "invalid regulator %s\n",
 				 pdata->subdevs[i].name);
-			goto err_out;
+			return ret;
 		}
 	}
 
@@ -489,33 +489,18 @@ static int max8660_probe(struct i2c_client *client,
 		config.of_node = of_node[i];
 		config.driver_data = max8660;
 
-		rdev[i] = regulator_register(&max8660_reg[id], &config);
+		rdev[i] = devm_regulator_register(&client->dev,
+						  &max8660_reg[id], &config);
 		if (IS_ERR(rdev[i])) {
 			ret = PTR_ERR(rdev[i]);
-			dev_err(dev, "failed to register %s\n",
+			dev_err(&client->dev, "failed to register %s\n",
 				max8660_reg[id].name);
-			goto err_unregister;
+			return PTR_ERR(rdev[i]);
 		}
 	}
 
 	i2c_set_clientdata(client, max8660);
 	return 0;
-
-err_unregister:
-	while (--i >= 0)
-		regulator_unregister(rdev[i]);
-err_out:
-	return ret;
-}
-
-static int max8660_remove(struct i2c_client *client)
-{
-	struct max8660 *max8660 = i2c_get_clientdata(client);
-	int i;
-
-	for (i = 0; i < MAX8660_V_END; i++)
-		regulator_unregister(max8660->rdev[i]);
-	return 0;
 }
 
 static const struct i2c_device_id max8660_id[] = {
@@ -527,7 +512,6 @@ MODULE_DEVICE_TABLE(i2c, max8660_id);
 
 static struct i2c_driver max8660_driver = {
 	.probe = max8660_probe,
-	.remove = max8660_remove,
 	.driver		= {
 		.name	= "max8660",
 		.owner	= THIS_MODULE,
-- 
cgit 


From 5ecdf140f21c50c08be34a83b44f28722813366c Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 11:07:59 +0530
Subject: regulator: max8907-regulator: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/max8907-regulator.c | 23 +++--------------------
 1 file changed, 3 insertions(+), 20 deletions(-)

diff --git a/drivers/regulator/max8907-regulator.c b/drivers/regulator/max8907-regulator.c
index 4568c15fa78d..0c5fe6c6ac26 100644
--- a/drivers/regulator/max8907-regulator.c
+++ b/drivers/regulator/max8907-regulator.c
@@ -350,33 +350,17 @@ static int max8907_regulator_probe(struct platform_device *pdev)
 				pmic->desc[i].ops = &max8907_out5v_hwctl_ops;
 		}
 
-		pmic->rdev[i] = regulator_register(&pmic->desc[i], &config);
+		pmic->rdev[i] = devm_regulator_register(&pdev->dev,
+						&pmic->desc[i], &config);
 		if (IS_ERR(pmic->rdev[i])) {
 			dev_err(&pdev->dev,
 				"failed to register %s regulator\n",
 				pmic->desc[i].name);
-			ret = PTR_ERR(pmic->rdev[i]);
-			goto err_unregister_regulator;
+			return PTR_ERR(pmic->rdev[i]);
 		}
 	}
 
 	return 0;
-
-err_unregister_regulator:
-	while (--i >= 0)
-		regulator_unregister(pmic->rdev[i]);
-	return ret;
-}
-
-static int max8907_regulator_remove(struct platform_device *pdev)
-{
-	struct max8907_regulator *pmic = platform_get_drvdata(pdev);
-	int i;
-
-	for (i = 0; i < MAX8907_NUM_REGULATORS; i++)
-		regulator_unregister(pmic->rdev[i]);
-
-	return 0;
 }
 
 static struct platform_driver max8907_regulator_driver = {
@@ -385,7 +369,6 @@ static struct platform_driver max8907_regulator_driver = {
 		   .owner = THIS_MODULE,
 		   },
 	.probe = max8907_regulator_probe,
-	.remove = max8907_regulator_remove,
 };
 
 static int __init max8907_regulator_init(void)
-- 
cgit 


From 8d581fd01c922f9df586074078d70027156cfff8 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 11:08:00 +0530
Subject: regulator: max8973-regulator: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/max8973-regulator.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/regulator/max8973-regulator.c b/drivers/regulator/max8973-regulator.c
index 5b77ab7762e4..892aa1e5b96c 100644
--- a/drivers/regulator/max8973-regulator.c
+++ b/drivers/regulator/max8973-regulator.c
@@ -467,7 +467,7 @@ static int max8973_probe(struct i2c_client *client,
 	config.regmap = max->regmap;
 
 	/* Register the regulators */
-	rdev = regulator_register(&max->desc, &config);
+	rdev = devm_regulator_register(&client->dev, &max->desc, &config);
 	if (IS_ERR(rdev)) {
 		ret = PTR_ERR(rdev);
 		dev_err(max->dev, "regulator register failed, err %d\n", ret);
@@ -478,14 +478,6 @@ static int max8973_probe(struct i2c_client *client,
 	return 0;
 }
 
-static int max8973_remove(struct i2c_client *client)
-{
-	struct max8973_chip *max = i2c_get_clientdata(client);
-
-	regulator_unregister(max->rdev);
-	return 0;
-}
-
 static const struct i2c_device_id max8973_id[] = {
 	{.name = "max8973",},
 	{},
@@ -499,7 +491,6 @@ static struct i2c_driver max8973_i2c_driver = {
 		.owner = THIS_MODULE,
 	},
 	.probe = max8973_probe,
-	.remove = max8973_remove,
 	.id_table = max8973_id,
 };
 
-- 
cgit 


From 4177f95b8433f809228ab485e3303ae4708c98ca Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 11:08:01 +0530
Subject: regulator: max8997: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/max8997.c | 38 ++++++++++----------------------------
 1 file changed, 10 insertions(+), 28 deletions(-)

diff --git a/drivers/regulator/max8997.c b/drivers/regulator/max8997.c
index df20069f0537..059e8ed7fa24 100644
--- a/drivers/regulator/max8997.c
+++ b/drivers/regulator/max8997.c
@@ -1081,7 +1081,7 @@ static int max8997_pmic_probe(struct platform_device *pdev)
 					pdata->buck1_voltage[i] +
 					buck1245_voltage_map_desc.step);
 		if (ret < 0)
-			goto err_out;
+			return ret;
 
 		max8997->buck2_vol[i] = ret =
 			max8997_get_voltage_proper_val(
@@ -1090,7 +1090,7 @@ static int max8997_pmic_probe(struct platform_device *pdev)
 					pdata->buck2_voltage[i] +
 					buck1245_voltage_map_desc.step);
 		if (ret < 0)
-			goto err_out;
+			return ret;
 
 		max8997->buck5_vol[i] = ret =
 			max8997_get_voltage_proper_val(
@@ -1099,7 +1099,7 @@ static int max8997_pmic_probe(struct platform_device *pdev)
 					pdata->buck5_voltage[i] +
 					buck1245_voltage_map_desc.step);
 		if (ret < 0)
-			goto err_out;
+			return ret;
 
 		if (max_buck1 < max8997->buck1_vol[i])
 			max_buck1 = max8997->buck1_vol[i];
@@ -1143,24 +1143,23 @@ static int max8997_pmic_probe(struct platform_device *pdev)
 				!gpio_is_valid(pdata->buck125_gpios[1]) ||
 				!gpio_is_valid(pdata->buck125_gpios[2])) {
 			dev_err(&pdev->dev, "GPIO NOT VALID\n");
-			ret = -EINVAL;
-			goto err_out;
+			return -EINVAL;
 		}
 
 		ret = devm_gpio_request(&pdev->dev, pdata->buck125_gpios[0],
 					"MAX8997 SET1");
 		if (ret)
-			goto err_out;
+			return ret;
 
 		ret = devm_gpio_request(&pdev->dev, pdata->buck125_gpios[1],
 					"MAX8997 SET2");
 		if (ret)
-			goto err_out;
+			return ret;
 
 		ret = devm_gpio_request(&pdev->dev, pdata->buck125_gpios[2],
 				"MAX8997 SET3");
 		if (ret)
-			goto err_out;
+			return ret;
 
 		gpio_direction_output(pdata->buck125_gpios[0],
 				(max8997->buck125_gpioindex >> 2)
@@ -1205,33 +1204,17 @@ static int max8997_pmic_probe(struct platform_device *pdev)
 		config.driver_data = max8997;
 		config.of_node = pdata->regulators[i].reg_node;
 
-		rdev[i] = regulator_register(&regulators[id], &config);
+		rdev[i] = devm_regulator_register(&pdev->dev, &regulators[id],
+						  &config);
 		if (IS_ERR(rdev[i])) {
-			ret = PTR_ERR(rdev[i]);
 			dev_err(max8997->dev, "regulator init failed for %d\n",
 					id);
 			rdev[i] = NULL;
-			goto err;
+			return PTR_ERR(rdev[i]);
 		}
 	}
 
 	return 0;
-err:
-	while (--i >= 0)
-		regulator_unregister(rdev[i]);
-err_out:
-	return ret;
-}
-
-static int max8997_pmic_remove(struct platform_device *pdev)
-{
-	struct max8997_data *max8997 = platform_get_drvdata(pdev);
-	struct regulator_dev **rdev = max8997->rdev;
-	int i;
-
-	for (i = 0; i < max8997->num_regulators; i++)
-		regulator_unregister(rdev[i]);
-	return 0;
 }
 
 static const struct platform_device_id max8997_pmic_id[] = {
@@ -1246,7 +1229,6 @@ static struct platform_driver max8997_pmic_driver = {
 		.owner = THIS_MODULE,
 	},
 	.probe = max8997_pmic_probe,
-	.remove = max8997_pmic_remove,
 	.id_table = max8997_pmic_id,
 };
 
-- 
cgit 


From 8d491bf42e01e8cc7597ee55cdeab20dbc75ec97 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 11:08:02 +0530
Subject: regulator: max8998: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/max8998.c | 35 ++++++++---------------------------
 1 file changed, 8 insertions(+), 27 deletions(-)

diff --git a/drivers/regulator/max8998.c b/drivers/regulator/max8998.c
index a4c53b2d1aaf..ae3f0656feb0 100644
--- a/drivers/regulator/max8998.c
+++ b/drivers/regulator/max8998.c
@@ -790,16 +790,14 @@ static int max8998_pmic_probe(struct platform_device *pdev)
 			dev_err(&pdev->dev,
 				"MAX8998 SET1 GPIO defined as 0 !\n");
 			WARN_ON(!pdata->buck1_set1);
-			ret = -EIO;
-			goto err_out;
+			return -EIO;
 		}
 		/* Check if SET2 is not equal to 0 */
 		if (!pdata->buck1_set2) {
 			dev_err(&pdev->dev,
 				"MAX8998 SET2 GPIO defined as 0 !\n");
 			WARN_ON(!pdata->buck1_set2);
-			ret = -EIO;
-			goto err_out;
+			return -EIO;
 		}
 
 		gpio_request(pdata->buck1_set1, "MAX8998 BUCK1_SET1");
@@ -823,7 +821,7 @@ static int max8998_pmic_probe(struct platform_device *pdev)
 			ret = max8998_write_reg(i2c,
 					MAX8998_REG_BUCK1_VOLTAGE1 + v, i);
 			if (ret)
-				goto err_out;
+				return ret;
 		}
 	}
 
@@ -833,8 +831,7 @@ static int max8998_pmic_probe(struct platform_device *pdev)
 			dev_err(&pdev->dev,
 				"MAX8998 SET3 GPIO defined as 0 !\n");
 			WARN_ON(!pdata->buck2_set3);
-			ret = -EIO;
-			goto err_out;
+			return -EIO;
 		}
 		gpio_request(pdata->buck2_set3, "MAX8998 BUCK2_SET3");
 		gpio_direction_output(pdata->buck2_set3,
@@ -852,7 +849,7 @@ static int max8998_pmic_probe(struct platform_device *pdev)
 			ret = max8998_write_reg(i2c,
 					MAX8998_REG_BUCK2_VOLTAGE1 + v, i);
 			if (ret)
-				goto err_out;
+				return ret;
 		}
 	}
 
@@ -875,33 +872,18 @@ static int max8998_pmic_probe(struct platform_device *pdev)
 		config.init_data = pdata->regulators[i].initdata;
 		config.driver_data = max8998;
 
-		rdev[i] = regulator_register(&regulators[index], &config);
+		rdev[i] = devm_regulator_register(&pdev->dev,
+						  &regulators[index], &config);
 		if (IS_ERR(rdev[i])) {
 			ret = PTR_ERR(rdev[i]);
 			dev_err(max8998->dev, "regulator %s init failed (%d)\n",
 						regulators[index].name, ret);
 			rdev[i] = NULL;
-			goto err;
+			return ret;
 		}
 	}
 
 
-	return 0;
-err:
-	while (--i >= 0)
-		regulator_unregister(rdev[i]);
-err_out:
-	return ret;
-}
-
-static int max8998_pmic_remove(struct platform_device *pdev)
-{
-	struct max8998_data *max8998 = platform_get_drvdata(pdev);
-	struct regulator_dev **rdev = max8998->rdev;
-	int i;
-
-	for (i = 0; i < max8998->num_regulators; i++)
-		regulator_unregister(rdev[i]);
 	return 0;
 }
 
@@ -918,7 +900,6 @@ static struct platform_driver max8998_pmic_driver = {
 		.owner = THIS_MODULE,
 	},
 	.probe = max8998_pmic_probe,
-	.remove = max8998_pmic_remove,
 	.id_table = max8998_pmic_id,
 };
 
-- 
cgit 


From be1221e893775d8447623475a01f877b902fc8b4 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 12:00:57 +0530
Subject: regulator: anatop-regulator: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/anatop-regulator.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/regulator/anatop-regulator.c b/drivers/regulator/anatop-regulator.c
index 0d4a8ccbb536..e42bfd17562a 100644
--- a/drivers/regulator/anatop-regulator.c
+++ b/drivers/regulator/anatop-regulator.c
@@ -200,7 +200,7 @@ static int anatop_regulator_probe(struct platform_device *pdev)
 	config.regmap = sreg->anatop;
 
 	/* register regulator */
-	rdev = regulator_register(rdesc, &config);
+	rdev = devm_regulator_register(dev, rdesc, &config);
 	if (IS_ERR(rdev)) {
 		dev_err(dev, "failed to register %s\n",
 			rdesc->name);
@@ -223,7 +223,6 @@ static int anatop_regulator_remove(struct platform_device *pdev)
 	struct anatop_regulator *sreg = rdev_get_drvdata(rdev);
 	const char *name = sreg->name;
 
-	regulator_unregister(rdev);
 	kfree(name);
 
 	return 0;
-- 
cgit 


From 0ab6e8ca54d22f986a488bbc493e01f1394a3b2b Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 12:00:58 +0530
Subject: regulator: isl6271a-regulator: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/isl6271a-regulator.c | 24 ++++--------------------
 1 file changed, 4 insertions(+), 20 deletions(-)

diff --git a/drivers/regulator/isl6271a-regulator.c b/drivers/regulator/isl6271a-regulator.c
index 88c1a3acf563..6e5da95fa025 100644
--- a/drivers/regulator/isl6271a-regulator.c
+++ b/drivers/regulator/isl6271a-regulator.c
@@ -112,7 +112,7 @@ static int isl6271a_probe(struct i2c_client *i2c,
 	struct regulator_config config = { };
 	struct regulator_init_data *init_data	= dev_get_platdata(&i2c->dev);
 	struct isl_pmic *pmic;
-	int err, i;
+	int i;
 
 	if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		return -EIO;
@@ -133,32 +133,17 @@ static int isl6271a_probe(struct i2c_client *i2c,
 			config.init_data = NULL;
 		config.driver_data = pmic;
 
-		pmic->rdev[i] = regulator_register(&isl_rd[i], &config);
+		pmic->rdev[i] = devm_regulator_register(&i2c->dev, &isl_rd[i],
+							&config);
 		if (IS_ERR(pmic->rdev[i])) {
 			dev_err(&i2c->dev, "failed to register %s\n", id->name);
-			err = PTR_ERR(pmic->rdev[i]);
-			goto error;
+			return PTR_ERR(pmic->rdev[i]);
 		}
 	}
 
 	i2c_set_clientdata(i2c, pmic);
 
 	return 0;
-
-error:
-	while (--i >= 0)
-		regulator_unregister(pmic->rdev[i]);
-	return err;
-}
-
-static int isl6271a_remove(struct i2c_client *i2c)
-{
-	struct isl_pmic *pmic = i2c_get_clientdata(i2c);
-	int i;
-
-	for (i = 0; i < 3; i++)
-		regulator_unregister(pmic->rdev[i]);
-	return 0;
 }
 
 static const struct i2c_device_id isl6271a_id[] = {
@@ -174,7 +159,6 @@ static struct i2c_driver isl6271a_i2c_driver = {
 		.owner = THIS_MODULE,
 	},
 	.probe = isl6271a_probe,
-	.remove = isl6271a_remove,
 	.id_table = isl6271a_id,
 };
 
-- 
cgit 


From 8e568635afcce245d771c2fc527f3902b6d2e723 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 12:00:59 +0530
Subject: regulator: mc13783: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/mc13783-regulator.c | 25 ++++---------------------
 1 file changed, 4 insertions(+), 21 deletions(-)

diff --git a/drivers/regulator/mc13783-regulator.c b/drivers/regulator/mc13783-regulator.c
index 5ff99d2703db..f036b26d4cfc 100644
--- a/drivers/regulator/mc13783-regulator.c
+++ b/drivers/regulator/mc13783-regulator.c
@@ -400,7 +400,7 @@ static int mc13783_regulator_probe(struct platform_device *pdev)
 		dev_get_platdata(&pdev->dev);
 	struct mc13xxx_regulator_init_data *mc13xxx_data;
 	struct regulator_config config = { };
-	int i, ret, num_regulators;
+	int i, num_regulators;
 
 	num_regulators = mc13xxx_get_num_regulators_dt(pdev);
 
@@ -444,31 +444,15 @@ static int mc13783_regulator_probe(struct platform_device *pdev)
 		config.driver_data = priv;
 		config.of_node = node;
 
-		priv->regulators[i] = regulator_register(desc, &config);
+		priv->regulators[i] = devm_regulator_register(&pdev->dev, desc,
+							      &config);
 		if (IS_ERR(priv->regulators[i])) {
 			dev_err(&pdev->dev, "failed to register regulator %s\n",
 				mc13783_regulators[i].desc.name);
-			ret = PTR_ERR(priv->regulators[i]);
-			goto err;
+			return PTR_ERR(priv->regulators[i]);
 		}
 	}
 
-	return 0;
-err:
-	while (--i >= 0)
-		regulator_unregister(priv->regulators[i]);
-
-	return ret;
-}
-
-static int mc13783_regulator_remove(struct platform_device *pdev)
-{
-	struct mc13xxx_regulator_priv *priv = platform_get_drvdata(pdev);
-	int i;
-
-	for (i = 0; i < priv->num_regulators; i++)
-		regulator_unregister(priv->regulators[i]);
-
 	return 0;
 }
 
@@ -477,7 +461,6 @@ static struct platform_driver mc13783_regulator_driver = {
 		.name	= "mc13783-regulator",
 		.owner	= THIS_MODULE,
 	},
-	.remove		= mc13783_regulator_remove,
 	.probe		= mc13783_regulator_probe,
 };
 
-- 
cgit 


From 8c0b4ab5024c7b7d3498957cdbe4fea151142f7a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 12:01:00 +0530
Subject: regulator: mc13892: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/mc13892-regulator.c | 22 +++-------------------
 1 file changed, 3 insertions(+), 19 deletions(-)

diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c
index 1037e07937cf..96c9f80d9550 100644
--- a/drivers/regulator/mc13892-regulator.c
+++ b/drivers/regulator/mc13892-regulator.c
@@ -611,43 +611,27 @@ static int mc13892_regulator_probe(struct platform_device *pdev)
 		config.driver_data = priv;
 		config.of_node = node;
 
-		priv->regulators[i] = regulator_register(desc, &config);
+		priv->regulators[i] = devm_regulator_register(&pdev->dev, desc,
+							      &config);
 		if (IS_ERR(priv->regulators[i])) {
 			dev_err(&pdev->dev, "failed to register regulator %s\n",
 				mc13892_regulators[i].desc.name);
-			ret = PTR_ERR(priv->regulators[i]);
-			goto err;
+			return PTR_ERR(priv->regulators[i]);
 		}
 	}
 
 	return 0;
-err:
-	while (--i >= 0)
-		regulator_unregister(priv->regulators[i]);
-	return ret;
 
 err_unlock:
 	mc13xxx_unlock(mc13892);
 	return ret;
 }
 
-static int mc13892_regulator_remove(struct platform_device *pdev)
-{
-	struct mc13xxx_regulator_priv *priv = platform_get_drvdata(pdev);
-	int i;
-
-	for (i = 0; i < priv->num_regulators; i++)
-		regulator_unregister(priv->regulators[i]);
-
-	return 0;
-}
-
 static struct platform_driver mc13892_regulator_driver = {
 	.driver	= {
 		.name	= "mc13892-regulator",
 		.owner	= THIS_MODULE,
 	},
-	.remove	= mc13892_regulator_remove,
 	.probe	= mc13892_regulator_probe,
 };
 
-- 
cgit 


From 51c86b3eb80ebe0a35aba5ba3e96b22d61043ad1 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 12:01:01 +0530
Subject: regulator: palmas: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/palmas-regulator.c | 38 +++++++++++-------------------------
 1 file changed, 11 insertions(+), 27 deletions(-)

diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index 488dfe7ce9a6..6c9670ff6be5 100644
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -862,7 +862,7 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 			if (ret < 0) {
 				dev_err(&pdev->dev,
 					"reading TSTEP reg failed: %d\n", ret);
-				goto err_unregister_regulator;
+				return ret;
 			}
 			pmic->desc[id].ramp_delay =
 					palmas_smps_ramp_delay[reg & 0x3];
@@ -874,7 +874,7 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 			reg_init = pdata->reg_init[id];
 			ret = palmas_smps_init(palmas, id, reg_init);
 			if (ret)
-				goto err_unregister_regulator;
+				return ret;
 		}
 
 		/* Register the regulators */
@@ -915,7 +915,7 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 
 			ret = palmas_smps_read(pmic->palmas, addr, &reg);
 			if (ret)
-				goto err_unregister_regulator;
+				return ret;
 			if (reg & PALMAS_SMPS12_VOLTAGE_RANGE)
 				pmic->range[id] = 1;
 
@@ -931,7 +931,7 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 			addr = palmas_regs_info[id].ctrl_addr;
 			ret = palmas_smps_read(pmic->palmas, addr, &reg);
 			if (ret)
-				goto err_unregister_regulator;
+				return ret;
 			pmic->current_reg_mode[id] = reg &
 					PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
 		}
@@ -947,13 +947,13 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 		pmic->desc[id].supply_name = palmas_regs_info[id].sname;
 		config.of_node = palmas_matches[id].of_node;
 
-		rdev = regulator_register(&pmic->desc[id], &config);
+		rdev = devm_regulator_register(&pdev->dev, &pmic->desc[id],
+					       &config);
 		if (IS_ERR(rdev)) {
 			dev_err(&pdev->dev,
 				"failed to register %s regulator\n",
 				pdev->name);
-			ret = PTR_ERR(rdev);
-			goto err_unregister_regulator;
+			return PTR_ERR(rdev);
 		}
 
 		/* Save regulator for cleanup */
@@ -1015,13 +1015,13 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 		pmic->desc[id].supply_name = palmas_regs_info[id].sname;
 		config.of_node = palmas_matches[id].of_node;
 
-		rdev = regulator_register(&pmic->desc[id], &config);
+		rdev = devm_regulator_register(&pdev->dev, &pmic->desc[id],
+					       &config);
 		if (IS_ERR(rdev)) {
 			dev_err(&pdev->dev,
 				"failed to register %s regulator\n",
 				pdev->name);
-			ret = PTR_ERR(rdev);
-			goto err_unregister_regulator;
+			return PTR_ERR(rdev);
 		}
 
 		/* Save regulator for cleanup */
@@ -1039,7 +1039,7 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 							id, reg_init);
 				if (ret) {
 					regulator_unregister(pmic->rdev[id]);
-					goto err_unregister_regulator;
+					return ret;
 				}
 			}
 		}
@@ -1047,21 +1047,6 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 
 
 	return 0;
-
-err_unregister_regulator:
-	while (--id >= 0)
-		regulator_unregister(pmic->rdev[id]);
-	return ret;
-}
-
-static int palmas_regulators_remove(struct platform_device *pdev)
-{
-	struct palmas_pmic *pmic = platform_get_drvdata(pdev);
-	int id;
-
-	for (id = 0; id < PALMAS_NUM_REGS; id++)
-		regulator_unregister(pmic->rdev[id]);
-	return 0;
 }
 
 static struct of_device_id of_palmas_match_tbl[] = {
@@ -1083,7 +1068,6 @@ static struct platform_driver palmas_driver = {
 		.owner = THIS_MODULE,
 	},
 	.probe = palmas_regulators_probe,
-	.remove = palmas_regulators_remove,
 };
 
 static int __init palmas_init(void)
-- 
cgit 


From 1377530910da1502b07d09df1a368ce9a246c114 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 12:01:02 +0530
Subject: regulator: rc5t583: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/rc5t583-regulator.c | 22 ++--------------------
 1 file changed, 2 insertions(+), 20 deletions(-)

diff --git a/drivers/regulator/rc5t583-regulator.c b/drivers/regulator/rc5t583-regulator.c
index 5885b4504596..b58affb33143 100644
--- a/drivers/regulator/rc5t583-regulator.c
+++ b/drivers/regulator/rc5t583-regulator.c
@@ -173,33 +173,16 @@ skip_ext_pwr_config:
 		config.driver_data = reg;
 		config.regmap = rc5t583->regmap;
 
-		rdev = regulator_register(&ri->desc, &config);
+		rdev = devm_regulator_register(&pdev->dev, &ri->desc, &config);
 		if (IS_ERR(rdev)) {
 			dev_err(&pdev->dev, "Failed to register regulator %s\n",
 						ri->desc.name);
-			ret = PTR_ERR(rdev);
-			goto clean_exit;
+			return PTR_ERR(rdev);
 		}
 		reg->rdev = rdev;
 	}
 	platform_set_drvdata(pdev, regs);
 	return 0;
-
-clean_exit:
-	while (--id >= 0)
-		regulator_unregister(regs[id].rdev);
-
-	return ret;
-}
-
-static int rc5t583_regulator_remove(struct platform_device *pdev)
-{
-	struct rc5t583_regulator *regs = platform_get_drvdata(pdev);
-	int id;
-
-	for (id = 0; id < RC5T583_REGULATOR_MAX; ++id)
-		regulator_unregister(regs[id].rdev);
-	return 0;
 }
 
 static struct platform_driver rc5t583_regulator_driver = {
@@ -208,7 +191,6 @@ static struct platform_driver rc5t583_regulator_driver = {
 		.owner	= THIS_MODULE,
 	},
 	.probe		= rc5t583_regulator_probe,
-	.remove		= rc5t583_regulator_remove,
 };
 
 static int __init rc5t583_regulator_init(void)
-- 
cgit 


From 91dfc80d84eee076a835fb34d053618e63667370 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 12:01:03 +0530
Subject: regulator: ti-abb: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/ti-abb-regulator.c | 79 ++++++++++--------------------------
 1 file changed, 22 insertions(+), 57 deletions(-)

diff --git a/drivers/regulator/ti-abb-regulator.c b/drivers/regulator/ti-abb-regulator.c
index d8e3e1262bc2..8c2a8195d8a7 100644
--- a/drivers/regulator/ti-abb-regulator.c
+++ b/drivers/regulator/ti-abb-regulator.c
@@ -696,39 +696,31 @@ static int ti_abb_probe(struct platform_device *pdev)
 	match = of_match_device(ti_abb_of_match, dev);
 	if (!match) {
 		/* We do not expect this to happen */
-		ret = -ENODEV;
 		dev_err(dev, "%s: Unable to match device\n", __func__);
-		goto err;
+		return -ENODEV;
 	}
 	if (!match->data) {
-		ret = -EINVAL;
 		dev_err(dev, "%s: Bad data in match\n", __func__);
-		goto err;
+		return -EINVAL;
 	}
 
 	abb = devm_kzalloc(dev, sizeof(struct ti_abb), GFP_KERNEL);
-	if (!abb) {
-		dev_err(dev, "%s: Unable to allocate ABB struct\n", __func__);
-		ret = -ENOMEM;
-		goto err;
-	}
+	if (!abb)
+		return -ENOMEM;
 	abb->regs = match->data;
 
 	/* Map ABB resources */
 	pname = "base-address";
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, pname);
 	abb->base = devm_ioremap_resource(dev, res);
-	if (IS_ERR(abb->base)) {
-		ret = PTR_ERR(abb->base);
-		goto err;
-	}
+	if (IS_ERR(abb->base))
+		return PTR_ERR(abb->base);
 
 	pname = "int-address";
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, pname);
 	if (!res) {
 		dev_err(dev, "Missing '%s' IO resource\n", pname);
-		ret = -ENODEV;
-		goto err;
+		return -ENODEV;
 	}
 	/*
 	 * We may have shared interrupt register offsets which are
@@ -738,8 +730,7 @@ static int ti_abb_probe(struct platform_device *pdev)
 					     resource_size(res));
 	if (!abb->int_base) {
 		dev_err(dev, "Unable to map '%s'\n", pname);
-		ret = -ENOMEM;
-		goto err;
+		return -ENOMEM;
 	}
 
 	/* Map Optional resources */
@@ -759,17 +750,14 @@ static int ti_abb_probe(struct platform_device *pdev)
 					       resource_size(res));
 	if (!abb->efuse_base) {
 		dev_err(dev, "Unable to map '%s'\n", pname);
-		ret = -ENOMEM;
-		goto err;
+		return -ENOMEM;
 	}
 
 	pname = "ldo-address";
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, pname);
 	abb->ldo_base = devm_ioremap_resource(dev, res);
-	if (IS_ERR(abb->ldo_base)) {
-		ret = PTR_ERR(abb->ldo_base);
-		goto err;
-	}
+	if (IS_ERR(abb->ldo_base))
+		return PTR_ERR(abb->ldo_base);
 
 	/* IF ldo_base is set, the following are mandatory */
 	pname = "ti,ldovbb-override-mask";
@@ -778,12 +766,11 @@ static int ti_abb_probe(struct platform_device *pdev)
 				 &abb->ldovbb_override_mask);
 	if (ret) {
 		dev_err(dev, "Missing '%s' (%d)\n", pname, ret);
-		goto err;
+		return ret;
 	}
 	if (!abb->ldovbb_override_mask) {
 		dev_err(dev, "Invalid property:'%s' set as 0!\n", pname);
-		ret = -EINVAL;
-		goto err;
+		return -EINVAL;
 	}
 
 	pname = "ti,ldovbb-vset-mask";
@@ -792,12 +779,11 @@ static int ti_abb_probe(struct platform_device *pdev)
 				 &abb->ldovbb_vset_mask);
 	if (ret) {
 		dev_err(dev, "Missing '%s' (%d)\n", pname, ret);
-		goto err;
+		return ret;
 	}
 	if (!abb->ldovbb_vset_mask) {
 		dev_err(dev, "Invalid property:'%s' set as 0!\n", pname);
-		ret = -EINVAL;
-		goto err;
+		return -EINVAL;
 	}
 
 skip_opt:
@@ -807,31 +793,29 @@ skip_opt:
 				 &abb->txdone_mask);
 	if (ret) {
 		dev_err(dev, "Missing '%s' (%d)\n", pname, ret);
-		goto err;
+		return ret;
 	}
 	if (!abb->txdone_mask) {
 		dev_err(dev, "Invalid property:'%s' set as 0!\n", pname);
-		ret = -EINVAL;
-		goto err;
+		return -EINVAL;
 	}
 
 	initdata = of_get_regulator_init_data(dev, pdev->dev.of_node);
 	if (!initdata) {
-		ret = -ENOMEM;
 		dev_err(dev, "%s: Unable to alloc regulator init data\n",
 			__func__);
-		goto err;
+		return -ENOMEM;
 	}
 
 	/* init ABB opp_sel table */
 	ret = ti_abb_init_table(dev, abb, initdata);
 	if (ret)
-		goto err;
+		return ret;
 
 	/* init ABB timing */
 	ret = ti_abb_init_timings(dev, abb);
 	if (ret)
-		goto err;
+		return ret;
 
 	desc = &abb->rdesc;
 	desc->name = dev_name(dev);
@@ -849,12 +833,12 @@ skip_opt:
 	config.driver_data = abb;
 	config.of_node = pdev->dev.of_node;
 
-	rdev = regulator_register(desc, &config);
+	rdev = devm_regulator_register(dev, desc, &config);
 	if (IS_ERR(rdev)) {
 		ret = PTR_ERR(rdev);
 		dev_err(dev, "%s: failed to register regulator(%d)\n",
 			__func__, ret);
-		goto err;
+		return ret;
 	}
 	platform_set_drvdata(pdev, rdev);
 
@@ -862,31 +846,12 @@ skip_opt:
 	ti_abb_rmw(abb->regs->sr2_en_mask, 1, abb->regs->setup_reg, abb->base);
 
 	return 0;
-
-err:
-	dev_err(dev, "%s: Failed to initialize(%d)\n", __func__, ret);
-	return ret;
-}
-
-/**
- * ti_abb_remove() - cleanups
- * @pdev: ABB platform device
- *
- * Return: 0
- */
-static int ti_abb_remove(struct platform_device *pdev)
-{
-	struct regulator_dev *rdev = platform_get_drvdata(pdev);
-
-	regulator_unregister(rdev);
-	return 0;
 }
 
 MODULE_ALIAS("platform:ti_abb");
 
 static struct platform_driver ti_abb_driver = {
 	.probe = ti_abb_probe,
-	.remove = ti_abb_remove,
 	.driver = {
 		   .name = "ti_abb",
 		   .owner = THIS_MODULE,
-- 
cgit 


From 1084081dc8e5556e91539de082eaae89e39516c9 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 17:17:44 +0530
Subject: regulator: tps51632: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/tps51632-regulator.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/regulator/tps51632-regulator.c b/drivers/regulator/tps51632-regulator.c
index 9392a7ca3d2d..b0a3f0917a27 100644
--- a/drivers/regulator/tps51632-regulator.c
+++ b/drivers/regulator/tps51632-regulator.c
@@ -343,7 +343,7 @@ static int tps51632_probe(struct i2c_client *client,
 	config.regmap = tps->regmap;
 	config.of_node = client->dev.of_node;
 
-	rdev = regulator_register(&tps->desc, &config);
+	rdev = devm_regulator_register(&client->dev, &tps->desc, &config);
 	if (IS_ERR(rdev)) {
 		dev_err(tps->dev, "regulator register failed\n");
 		return PTR_ERR(rdev);
@@ -353,14 +353,6 @@ static int tps51632_probe(struct i2c_client *client,
 	return 0;
 }
 
-static int tps51632_remove(struct i2c_client *client)
-{
-	struct tps51632_chip *tps = i2c_get_clientdata(client);
-
-	regulator_unregister(tps->rdev);
-	return 0;
-}
-
 static const struct i2c_device_id tps51632_id[] = {
 	{.name = "tps51632",},
 	{},
@@ -375,7 +367,6 @@ static struct i2c_driver tps51632_i2c_driver = {
 		.of_match_table = of_match_ptr(tps51632_of_match),
 	},
 	.probe = tps51632_probe,
-	.remove = tps51632_remove,
 	.id_table = tps51632_id,
 };
 
-- 
cgit 


From 58c6e938c00de744d52f739aa426a4b1b13ef22b Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 17:17:45 +0530
Subject: regulator: tps62360: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/tps62360-regulator.c | 17 +----------------
 1 file changed, 1 insertion(+), 16 deletions(-)

diff --git a/drivers/regulator/tps62360-regulator.c b/drivers/regulator/tps62360-regulator.c
index 0b7ebb1ebf85..c2c0185a2dcd 100644
--- a/drivers/regulator/tps62360-regulator.c
+++ b/drivers/regulator/tps62360-regulator.c
@@ -476,7 +476,7 @@ static int tps62360_probe(struct i2c_client *client,
 	config.of_node = client->dev.of_node;
 
 	/* Register the regulators */
-	rdev = regulator_register(&tps->desc, &config);
+	rdev = devm_regulator_register(&client->dev, &tps->desc, &config);
 	if (IS_ERR(rdev)) {
 		dev_err(tps->dev,
 			"%s(): regulator register failed with err %s\n",
@@ -488,20 +488,6 @@ static int tps62360_probe(struct i2c_client *client,
 	return 0;
 }
 
-/**
- * tps62360_remove - tps62360 driver i2c remove handler
- * @client: i2c driver client device structure
- *
- * Unregister TPS driver as an i2c client device driver
- */
-static int tps62360_remove(struct i2c_client *client)
-{
-	struct tps62360_chip *tps = i2c_get_clientdata(client);
-
-	regulator_unregister(tps->rdev);
-	return 0;
-}
-
 static void tps62360_shutdown(struct i2c_client *client)
 {
 	struct tps62360_chip *tps = i2c_get_clientdata(client);
@@ -535,7 +521,6 @@ static struct i2c_driver tps62360_i2c_driver = {
 		.of_match_table = of_match_ptr(tps62360_of_match),
 	},
 	.probe = tps62360_probe,
-	.remove = tps62360_remove,
 	.shutdown = tps62360_shutdown,
 	.id_table = tps62360_id,
 };
-- 
cgit 


From 9c7c9eae5f7ac57465c0ac6adc8e3ad3afad2544 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 17:17:46 +0530
Subject: regulator: tps65023: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/tps65023-regulator.c | 22 +++-------------------
 1 file changed, 3 insertions(+), 19 deletions(-)

diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c
index a15263d4bdff..a957579bd98b 100644
--- a/drivers/regulator/tps65023-regulator.c
+++ b/drivers/regulator/tps65023-regulator.c
@@ -277,12 +277,12 @@ static int tps_65023_probe(struct i2c_client *client,
 		config.regmap = tps->regmap;
 
 		/* Register the regulators */
-		rdev = regulator_register(&tps->desc[i], &config);
+		rdev = devm_regulator_register(&client->dev, &tps->desc[i],
+					       &config);
 		if (IS_ERR(rdev)) {
 			dev_err(&client->dev, "failed to register %s\n",
 				id->name);
-			error = PTR_ERR(rdev);
-			goto fail;
+			return PTR_ERR(rdev);
 		}
 
 		/* Save regulator for cleanup */
@@ -296,21 +296,6 @@ static int tps_65023_probe(struct i2c_client *client,
 			TPS65023_REG_CTRL2_CORE_ADJ, TPS65023_REG_CTRL2_CORE_ADJ);
 
 	return 0;
-
- fail:
-	while (--i >= 0)
-		regulator_unregister(tps->rdev[i]);
-	return error;
-}
-
-static int tps_65023_remove(struct i2c_client *client)
-{
-	struct tps_pmic *tps = i2c_get_clientdata(client);
-	int i;
-
-	for (i = 0; i < TPS65023_NUM_REGULATOR; i++)
-		regulator_unregister(tps->rdev[i]);
-	return 0;
 }
 
 static const struct tps_info tps65020_regs[] = {
@@ -430,7 +415,6 @@ static struct i2c_driver tps_65023_i2c_driver = {
 		.owner = THIS_MODULE,
 	},
 	.probe = tps_65023_probe,
-	.remove = tps_65023_remove,
 	.id_table = tps_65023_id,
 };
 
-- 
cgit 


From 71b710e705b3b152f0e5682aa179a8c2d2cbb4cd Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 17:17:47 +0530
Subject: regulator: tps6507x: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/tps6507x-regulator.c | 23 +++--------------------
 1 file changed, 3 insertions(+), 20 deletions(-)

diff --git a/drivers/regulator/tps6507x-regulator.c b/drivers/regulator/tps6507x-regulator.c
index 4117ff52dba1..162a0fae20b3 100644
--- a/drivers/regulator/tps6507x-regulator.c
+++ b/drivers/regulator/tps6507x-regulator.c
@@ -508,13 +508,13 @@ static int tps6507x_pmic_probe(struct platform_device *pdev)
 			config.of_node = tps6507x_reg_matches[i].of_node;
 		}
 
-		rdev = regulator_register(&tps->desc[i], &config);
+		rdev = devm_regulator_register(&pdev->dev, &tps->desc[i],
+					       &config);
 		if (IS_ERR(rdev)) {
 			dev_err(tps6507x_dev->dev,
 				"failed to register %s regulator\n",
 				pdev->name);
-			error = PTR_ERR(rdev);
-			goto fail;
+			return PTR_ERR(rdev);
 		}
 
 		/* Save regulator for cleanup */
@@ -525,22 +525,6 @@ static int tps6507x_pmic_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, tps6507x_dev);
 
 	return 0;
-
-fail:
-	while (--i >= 0)
-		regulator_unregister(tps->rdev[i]);
-	return error;
-}
-
-static int tps6507x_pmic_remove(struct platform_device *pdev)
-{
-	struct tps6507x_dev *tps6507x_dev = platform_get_drvdata(pdev);
-	struct tps6507x_pmic *tps = tps6507x_dev->pmic;
-	int i;
-
-	for (i = 0; i < TPS6507X_NUM_REGULATOR; i++)
-		regulator_unregister(tps->rdev[i]);
-	return 0;
 }
 
 static struct platform_driver tps6507x_pmic_driver = {
@@ -549,7 +533,6 @@ static struct platform_driver tps6507x_pmic_driver = {
 		.owner = THIS_MODULE,
 	},
 	.probe = tps6507x_pmic_probe,
-	.remove = tps6507x_pmic_remove,
 };
 
 static int __init tps6507x_pmic_init(void)
-- 
cgit 


From 9738efae695733a9d367bd083e6ae0474dc5bd3c Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 17:17:48 +0530
Subject: regulator: tps65090: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/tps65090-regulator.c | 35 +++++-----------------------------
 1 file changed, 5 insertions(+), 30 deletions(-)

diff --git a/drivers/regulator/tps65090-regulator.c b/drivers/regulator/tps65090-regulator.c
index c8e70451df38..bd611cdf6e1c 100644
--- a/drivers/regulator/tps65090-regulator.c
+++ b/drivers/regulator/tps65090-regulator.c
@@ -279,7 +279,7 @@ static int tps65090_regulator_probe(struct platform_device *pdev)
 				if (ret < 0) {
 					dev_err(&pdev->dev,
 						"failed disable ext control\n");
-					goto scrub;
+					return ret;
 				}
 			}
 		}
@@ -296,12 +296,11 @@ static int tps65090_regulator_probe(struct platform_device *pdev)
 		else
 			config.of_node = NULL;
 
-		rdev = regulator_register(ri->desc, &config);
+		rdev = devm_regulator_register(&pdev->dev, ri->desc, &config);
 		if (IS_ERR(rdev)) {
 			dev_err(&pdev->dev, "failed to register regulator %s\n",
 				ri->desc->name);
-			ret = PTR_ERR(rdev);
-			goto scrub;
+			return PTR_ERR(rdev);
 		}
 		ri->rdev = rdev;
 
@@ -309,36 +308,13 @@ static int tps65090_regulator_probe(struct platform_device *pdev)
 		if (tps_pdata && is_dcdc(num) && tps_pdata->reg_init_data &&
 				tps_pdata->enable_ext_control) {
 			ret = tps65090_config_ext_control(ri, true);
-			if (ret < 0) {
-				/* Increment num to get unregister rdev */
-				num++;
-				goto scrub;
-			}
+			if (ret < 0)
+				return ret;
 		}
 	}
 
 	platform_set_drvdata(pdev, pmic);
 	return 0;
-
-scrub:
-	while (--num >= 0) {
-		ri = &pmic[num];
-		regulator_unregister(ri->rdev);
-	}
-	return ret;
-}
-
-static int tps65090_regulator_remove(struct platform_device *pdev)
-{
-	struct tps65090_regulator *pmic = platform_get_drvdata(pdev);
-	struct tps65090_regulator *ri;
-	int num;
-
-	for (num = 0; num < TPS65090_REGULATOR_MAX; ++num) {
-		ri = &pmic[num];
-		regulator_unregister(ri->rdev);
-	}
-	return 0;
 }
 
 static struct platform_driver tps65090_regulator_driver = {
@@ -347,7 +323,6 @@ static struct platform_driver tps65090_regulator_driver = {
 		.owner	= THIS_MODULE,
 	},
 	.probe		= tps65090_regulator_probe,
-	.remove		= tps65090_regulator_remove,
 };
 
 static int __init tps65090_regulator_init(void)
-- 
cgit 


From 4aac198ddcfe38c7cf10cb2d23497b4a5ad24fdf Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 17:17:49 +0530
Subject: regulator: tps65217: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/tps65217-regulator.c | 26 ++++----------------------
 1 file changed, 4 insertions(+), 22 deletions(-)

diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c
index 90861d68a0b0..8860379fd6be 100644
--- a/drivers/regulator/tps65217-regulator.c
+++ b/drivers/regulator/tps65217-regulator.c
@@ -233,7 +233,7 @@ static int tps65217_regulator_probe(struct platform_device *pdev)
 	struct regulator_init_data *reg_data;
 	struct regulator_dev *rdev;
 	struct regulator_config config = { };
-	int i, ret;
+	int i;
 
 	if (tps->dev->of_node)
 		pdata = tps65217_parse_dt(pdev);
@@ -269,35 +269,18 @@ static int tps65217_regulator_probe(struct platform_device *pdev)
 		if (tps->dev->of_node)
 			config.of_node = pdata->of_node[i];
 
-		rdev = regulator_register(&regulators[i], &config);
+		rdev = devm_regulator_register(&pdev->dev, &regulators[i],
+					       &config);
 		if (IS_ERR(rdev)) {
 			dev_err(tps->dev, "failed to register %s regulator\n",
 				pdev->name);
-			ret = PTR_ERR(rdev);
-			goto err_unregister_regulator;
+			return PTR_ERR(rdev);
 		}
 
 		/* Save regulator for cleanup */
 		tps->rdev[i] = rdev;
 	}
 	return 0;
-
-err_unregister_regulator:
-	while (--i >= 0)
-		regulator_unregister(tps->rdev[i]);
-
-	return ret;
-}
-
-static int tps65217_regulator_remove(struct platform_device *pdev)
-{
-	struct tps65217 *tps = platform_get_drvdata(pdev);
-	unsigned int i;
-
-	for (i = 0; i < TPS65217_NUM_REGULATOR; i++)
-		regulator_unregister(tps->rdev[i]);
-
-	return 0;
 }
 
 static struct platform_driver tps65217_regulator_driver = {
@@ -305,7 +288,6 @@ static struct platform_driver tps65217_regulator_driver = {
 		.name = "tps65217-pmic",
 	},
 	.probe = tps65217_regulator_probe,
-	.remove = tps65217_regulator_remove,
 };
 
 static int __init tps65217_regulator_init(void)
-- 
cgit 


From 884ea5570f1eda8a1e0f5235cba4f00bafed450e Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 17:17:50 +0530
Subject: regulator: tps6586x: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/tps6586x-regulator.c | 31 ++++++-------------------------
 1 file changed, 6 insertions(+), 25 deletions(-)

diff --git a/drivers/regulator/tps6586x-regulator.c b/drivers/regulator/tps6586x-regulator.c
index 2c9155b66f09..45e5d683d3f8 100644
--- a/drivers/regulator/tps6586x-regulator.c
+++ b/drivers/regulator/tps6586x-regulator.c
@@ -379,15 +379,14 @@ static int tps6586x_regulator_probe(struct platform_device *pdev)
 		ri = find_regulator_info(id);
 		if (!ri) {
 			dev_err(&pdev->dev, "invalid regulator ID specified\n");
-			err = -EINVAL;
-			goto fail;
+			return -EINVAL;
 		}
 
 		err = tps6586x_regulator_preinit(pdev->dev.parent, ri);
 		if (err) {
 			dev_err(&pdev->dev,
 				"regulator %d preinit failed, e %d\n", id, err);
-			goto fail;
+			return err;
 		}
 
 		config.dev = pdev->dev.parent;
@@ -397,12 +396,12 @@ static int tps6586x_regulator_probe(struct platform_device *pdev)
 		if (tps6586x_reg_matches)
 			config.of_node = tps6586x_reg_matches[id].of_node;
 
-		rdev[id] = regulator_register(&ri->desc, &config);
+		rdev[id] = devm_regulator_register(&pdev->dev, &ri->desc,
+						   &config);
 		if (IS_ERR(rdev[id])) {
 			dev_err(&pdev->dev, "failed to register regulator %s\n",
 					ri->desc.name);
-			err = PTR_ERR(rdev[id]);
-			goto fail;
+			return PTR_ERR(rdev[id]);
 		}
 
 		if (reg_data) {
@@ -411,30 +410,13 @@ static int tps6586x_regulator_probe(struct platform_device *pdev)
 			if (err < 0) {
 				dev_err(&pdev->dev,
 					"Slew rate config failed, e %d\n", err);
-				regulator_unregister(rdev[id]);
-				goto fail;
+				return err;
 			}
 		}
 	}
 
 	platform_set_drvdata(pdev, rdev);
 	return 0;
-
-fail:
-	while (--id >= 0)
-		regulator_unregister(rdev[id]);
-	return err;
-}
-
-static int tps6586x_regulator_remove(struct platform_device *pdev)
-{
-	struct regulator_dev **rdev = platform_get_drvdata(pdev);
-	int id = TPS6586X_ID_MAX_REGULATOR;
-
-	while (--id >= 0)
-		regulator_unregister(rdev[id]);
-
-	return 0;
 }
 
 static struct platform_driver tps6586x_regulator_driver = {
@@ -443,7 +425,6 @@ static struct platform_driver tps6586x_regulator_driver = {
 		.owner	= THIS_MODULE,
 	},
 	.probe		= tps6586x_regulator_probe,
-	.remove		= tps6586x_regulator_remove,
 };
 
 static int __init tps6586x_regulator_init(void)
-- 
cgit 


From 95095e422e94afa5a286c2a015aad4c039c9cbd4 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 17:17:51 +0530
Subject: regulator: tps65910: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/tps65910-regulator.c | 23 +++--------------------
 1 file changed, 3 insertions(+), 20 deletions(-)

diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c
index 45c16447744b..b8167df71170 100644
--- a/drivers/regulator/tps65910-regulator.c
+++ b/drivers/regulator/tps65910-regulator.c
@@ -1177,35 +1177,19 @@ static int tps65910_probe(struct platform_device *pdev)
 		if (tps65910_reg_matches)
 			config.of_node = tps65910_reg_matches[i].of_node;
 
-		rdev = regulator_register(&pmic->desc[i], &config);
+		rdev = devm_regulator_register(&pdev->dev, &pmic->desc[i],
+					       &config);
 		if (IS_ERR(rdev)) {
 			dev_err(tps65910->dev,
 				"failed to register %s regulator\n",
 				pdev->name);
-			err = PTR_ERR(rdev);
-			goto err_unregister_regulator;
+			return PTR_ERR(rdev);
 		}
 
 		/* Save regulator for cleanup */
 		pmic->rdev[i] = rdev;
 	}
 	return 0;
-
-err_unregister_regulator:
-	while (--i >= 0)
-		regulator_unregister(pmic->rdev[i]);
-	return err;
-}
-
-static int tps65910_remove(struct platform_device *pdev)
-{
-	struct tps65910_reg *pmic = platform_get_drvdata(pdev);
-	int i;
-
-	for (i = 0; i < pmic->num_regulators; i++)
-		regulator_unregister(pmic->rdev[i]);
-
-	return 0;
 }
 
 static void tps65910_shutdown(struct platform_device *pdev)
@@ -1244,7 +1228,6 @@ static struct platform_driver tps65910_driver = {
 		.owner = THIS_MODULE,
 	},
 	.probe = tps65910_probe,
-	.remove = tps65910_remove,
 	.shutdown = tps65910_shutdown,
 };
 
-- 
cgit 


From ab1d65e03afdafa991bb208ade089d36b0e1d2ad Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 17:17:52 +0530
Subject: regulator: tps65912: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/tps65912-regulator.c | 24 ++++--------------------
 1 file changed, 4 insertions(+), 20 deletions(-)

diff --git a/drivers/regulator/tps65912-regulator.c b/drivers/regulator/tps65912-regulator.c
index 281e52ac64ba..1ed4d049abfe 100644
--- a/drivers/regulator/tps65912-regulator.c
+++ b/drivers/regulator/tps65912-regulator.c
@@ -461,7 +461,7 @@ static int tps65912_probe(struct platform_device *pdev)
 	struct regulator_dev *rdev;
 	struct tps65912_reg *pmic;
 	struct tps65912_board *pmic_plat_data;
-	int i, err;
+	int i;
 
 	pmic_plat_data = dev_get_platdata(tps65912->dev);
 	if (!pmic_plat_data)
@@ -504,34 +504,19 @@ static int tps65912_probe(struct platform_device *pdev)
 		config.init_data = reg_data;
 		config.driver_data = pmic;
 
-		rdev = regulator_register(&pmic->desc[i], &config);
+		rdev = devm_regulator_register(&pdev->dev, &pmic->desc[i],
+					       &config);
 		if (IS_ERR(rdev)) {
 			dev_err(tps65912->dev,
 				"failed to register %s regulator\n",
 				pdev->name);
-			err = PTR_ERR(rdev);
-			goto err;
+			return PTR_ERR(rdev);
 		}
 
 		/* Save regulator for cleanup */
 		pmic->rdev[i] = rdev;
 	}
 	return 0;
-
-err:
-	while (--i >= 0)
-		regulator_unregister(pmic->rdev[i]);
-	return err;
-}
-
-static int tps65912_remove(struct platform_device *pdev)
-{
-	struct tps65912_reg *tps65912_reg = platform_get_drvdata(pdev);
-	int i;
-
-	for (i = 0; i < TPS65912_NUM_REGULATOR; i++)
-		regulator_unregister(tps65912_reg->rdev[i]);
-	return 0;
 }
 
 static struct platform_driver tps65912_driver = {
@@ -540,7 +525,6 @@ static struct platform_driver tps65912_driver = {
 		.owner = THIS_MODULE,
 	},
 	.probe = tps65912_probe,
-	.remove = tps65912_remove,
 };
 
 static int __init tps65912_init(void)
-- 
cgit 


From 0fb0c82e8135d3de9eff2a05202f6870ec378392 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 4 Sep 2013 17:17:53 +0530
Subject: regulator: tps80031: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/tps80031-regulator.c | 30 +++++-------------------------
 1 file changed, 5 insertions(+), 25 deletions(-)

diff --git a/drivers/regulator/tps80031-regulator.c b/drivers/regulator/tps80031-regulator.c
index 6511d0bfd896..71f457a42623 100644
--- a/drivers/regulator/tps80031-regulator.c
+++ b/drivers/regulator/tps80031-regulator.c
@@ -719,7 +719,7 @@ static int tps80031_regulator_probe(struct platform_device *pdev)
 			if (ret < 0) {
 				dev_err(&pdev->dev,
 					"regulator config failed, e %d\n", ret);
-				goto fail;
+				return ret;
 			}
 
 			ret = tps80031_power_req_config(pdev->dev.parent,
@@ -727,41 +727,22 @@ static int tps80031_regulator_probe(struct platform_device *pdev)
 			if (ret < 0) {
 				dev_err(&pdev->dev,
 					"pwr_req config failed, err %d\n", ret);
-				goto fail;
+				return ret;
 			}
 		}
-		rdev = regulator_register(&ri->rinfo->desc, &config);
+		rdev = devm_regulator_register(&pdev->dev, &ri->rinfo->desc,
+					       &config);
 		if (IS_ERR(rdev)) {
 			dev_err(&pdev->dev,
 				"register regulator failed %s\n",
 					ri->rinfo->desc.name);
-			ret = PTR_ERR(rdev);
-			goto fail;
+			return PTR_ERR(rdev);
 		}
 		ri->rdev = rdev;
 	}
 
 	platform_set_drvdata(pdev, pmic);
 	return 0;
-fail:
-	while (--num >= 0) {
-		ri = &pmic[num];
-		regulator_unregister(ri->rdev);
-	}
-	return ret;
-}
-
-static int tps80031_regulator_remove(struct platform_device *pdev)
-{
-	struct tps80031_regulator *pmic = platform_get_drvdata(pdev);
-	struct tps80031_regulator *ri = NULL;
-	int num;
-
-	for (num = 0; num < TPS80031_REGULATOR_MAX; ++num) {
-		ri = &pmic[num];
-		regulator_unregister(ri->rdev);
-	}
-	return 0;
 }
 
 static struct platform_driver tps80031_regulator_driver = {
@@ -770,7 +751,6 @@ static struct platform_driver tps80031_regulator_driver = {
 		.owner	= THIS_MODULE,
 	},
 	.probe		= tps80031_regulator_probe,
-	.remove		= tps80031_regulator_remove,
 };
 
 static int __init tps80031_regulator_init(void)
-- 
cgit 


From 42141f22e32a452b02b3dc8764d93223505e1c10 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 5 Sep 2013 09:22:02 +0530
Subject: regulator: core: Fix a trivial typo

Changed automaticall -> automatically.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 5f995d281672..85e8cbed1cbc 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -3504,7 +3504,7 @@ static void devm_rdev_release(struct device *dev, void *res)
  *
  * Called by regulator drivers to register a regulator.  Returns a
  * valid pointer to struct regulator_dev on success or an ERR_PTR() on
- * error.  The regulator will automaticall be released when the device
+ * error.  The regulator will automatically be released when the device
  * is unbound.
  */
 struct regulator_dev *devm_regulator_register(struct device *dev,
-- 
cgit 


From cab87f062d0c57c9734257e4079ced489a3189b1 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 5 Sep 2013 09:22:03 +0530
Subject: regulator: Remove redundant NULL assignment

NULL assignment corrupts the error pointer and is not
necessary.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/max77686.c | 1 -
 drivers/regulator/max77693.c | 1 -
 drivers/regulator/max8997.c  | 1 -
 3 files changed, 3 deletions(-)

diff --git a/drivers/regulator/max77686.c b/drivers/regulator/max77686.c
index de5b30ea823c..ae001ccf26f4 100644
--- a/drivers/regulator/max77686.c
+++ b/drivers/regulator/max77686.c
@@ -483,7 +483,6 @@ static int max77686_pmic_probe(struct platform_device *pdev)
 		if (IS_ERR(max77686->rdev[i])) {
 			dev_err(&pdev->dev,
 				"regulator init failed for %d\n", i);
-			max77686->rdev[i] = NULL;
 			return PTR_ERR(max77686->rdev[i]);
 		}
 	}
diff --git a/drivers/regulator/max77693.c b/drivers/regulator/max77693.c
index 2054ae1c496e..feb20bf4ccab 100644
--- a/drivers/regulator/max77693.c
+++ b/drivers/regulator/max77693.c
@@ -271,7 +271,6 @@ static int max77693_pmic_probe(struct platform_device *pdev)
 		if (IS_ERR(max77693_pmic->rdev[i])) {
 			dev_err(max77693_pmic->dev,
 				"Failed to initialize regulator-%d\n", id);
-			max77693_pmic->rdev[i] = NULL;
 			return PTR_ERR(max77693_pmic->rdev[i]);
 		}
 	}
diff --git a/drivers/regulator/max8997.c b/drivers/regulator/max8997.c
index 059e8ed7fa24..bcd2488d1252 100644
--- a/drivers/regulator/max8997.c
+++ b/drivers/regulator/max8997.c
@@ -1209,7 +1209,6 @@ static int max8997_pmic_probe(struct platform_device *pdev)
 		if (IS_ERR(rdev[i])) {
 			dev_err(max8997->dev, "regulator init failed for %d\n",
 					id);
-			rdev[i] = NULL;
 			return PTR_ERR(rdev[i]);
 		}
 	}
-- 
cgit 


From cb2e45e31615bc37b31b44fc257042a860ce82b8 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Thu, 5 Sep 2013 11:31:25 +0800
Subject: regulator: palmas: Drop regulator_unregister while using
 devm_regulator_register

Commmit af40a94aba "regulator: palmas: Use devm_regulator_register" missed
removing a regulator_unregister() call if palmas_extreg_init falis. Fix it.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/palmas-regulator.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index 6c9670ff6be5..b5278ac4e6bd 100644
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -1037,10 +1037,8 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 				else
 					ret = palmas_extreg_init(palmas,
 							id, reg_init);
-				if (ret) {
-					regulator_unregister(pmic->rdev[id]);
+				if (ret)
 					return ret;
-				}
 			}
 		}
 	}
-- 
cgit 


From cee8e355942c01f408bddf8a53596be1dff7a86b Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Sun, 1 Sep 2013 12:24:17 +0800
Subject: regulator: core: Refactor devm_regulator_get* APIs

The implementation of devm_regulator_get, devm_regulator_get_exclusive and
devm_regulator_get_optional are almost the same.
Introduce _devm_regulator_get helper function and refactor the code.

Also move devm_regulator_get_exclusive to proper place, put it after
regulator_get_exclusive() function.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/core.c | 127 +++++++++++++++++++++++------------------------
 1 file changed, 62 insertions(+), 65 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 85e8cbed1cbc..388397bb3192 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1334,6 +1334,50 @@ out:
 	return regulator;
 }
 
+enum {
+	NORMAL_GET,
+	EXCLUSIVE_GET,
+	OPTIONAL_GET,
+};
+
+static void devm_regulator_release(struct device *dev, void *res)
+{
+	regulator_put(*(struct regulator **)res);
+}
+
+static struct regulator *_devm_regulator_get(struct device *dev, const char *id,
+					     int get_type)
+{
+	struct regulator **ptr, *regulator;
+
+	ptr = devres_alloc(devm_regulator_release, sizeof(*ptr), GFP_KERNEL);
+	if (!ptr)
+		return ERR_PTR(-ENOMEM);
+
+	switch (get_type) {
+	case NORMAL_GET:
+		regulator = regulator_get(dev, id);
+		break;
+	case EXCLUSIVE_GET:
+		regulator = regulator_get_exclusive(dev, id);
+		break;
+	case OPTIONAL_GET:
+		regulator = regulator_get_optional(dev, id);
+		break;
+	default:
+		regulator = ERR_PTR(-EINVAL);
+	}
+
+	if (!IS_ERR(regulator)) {
+		*ptr = regulator;
+		devres_add(dev, ptr);
+	} else {
+		devres_free(ptr);
+	}
+
+	return regulator;
+}
+
 /**
  * regulator_get - lookup and obtain a reference to a regulator.
  * @dev: device for regulator "consumer"
@@ -1353,11 +1397,6 @@ struct regulator *regulator_get(struct device *dev, const char *id)
 }
 EXPORT_SYMBOL_GPL(regulator_get);
 
-static void devm_regulator_release(struct device *dev, void *res)
-{
-	regulator_put(*(struct regulator **)res);
-}
-
 /**
  * devm_regulator_get - Resource managed regulator_get()
  * @dev: device for regulator "consumer"
@@ -1369,21 +1408,7 @@ static void devm_regulator_release(struct device *dev, void *res)
  */
 struct regulator *devm_regulator_get(struct device *dev, const char *id)
 {
-	struct regulator **ptr, *regulator;
-
-	ptr = devres_alloc(devm_regulator_release, sizeof(*ptr), GFP_KERNEL);
-	if (!ptr)
-		return ERR_PTR(-ENOMEM);
-
-	regulator = regulator_get(dev, id);
-	if (!IS_ERR(regulator)) {
-		*ptr = regulator;
-		devres_add(dev, ptr);
-	} else {
-		devres_free(ptr);
-	}
-
-	return regulator;
+	return _devm_regulator_get(dev, id, NORMAL_GET);
 }
 EXPORT_SYMBOL_GPL(devm_regulator_get);
 
@@ -1414,6 +1439,22 @@ struct regulator *regulator_get_exclusive(struct device *dev, const char *id)
 }
 EXPORT_SYMBOL_GPL(regulator_get_exclusive);
 
+/**
+ * devm_regulator_get_exclusive - Resource managed regulator_get_exclusive()
+ * @dev: device for regulator "consumer"
+ * @id: Supply name or regulator ID.
+ *
+ * Managed regulator_get_exclusive(). Regulators returned from this function
+ * are automatically regulator_put() on driver detach. See regulator_get() for
+ * more information.
+ */
+struct regulator *devm_regulator_get_exclusive(struct device *dev,
+					       const char *id)
+{
+	return _devm_regulator_get(dev, id, EXCLUSIVE_GET);
+}
+EXPORT_SYMBOL_GPL(devm_regulator_get_exclusive);
+
 /**
  * regulator_get_optional - obtain optional access to a regulator.
  * @dev: device for regulator "consumer"
@@ -1455,21 +1496,7 @@ EXPORT_SYMBOL_GPL(regulator_get_optional);
 struct regulator *devm_regulator_get_optional(struct device *dev,
 					      const char *id)
 {
-	struct regulator **ptr, *regulator;
-
-	ptr = devres_alloc(devm_regulator_release, sizeof(*ptr), GFP_KERNEL);
-	if (!ptr)
-		return ERR_PTR(-ENOMEM);
-
-	regulator = regulator_get_optional(dev, id);
-	if (!IS_ERR(regulator)) {
-		*ptr = regulator;
-		devres_add(dev, ptr);
-	} else {
-		devres_free(ptr);
-	}
-
-	return regulator;
+	return _devm_regulator_get(dev, id, OPTIONAL_GET);
 }
 EXPORT_SYMBOL_GPL(devm_regulator_get_optional);
 
@@ -1498,36 +1525,6 @@ static void _regulator_put(struct regulator *regulator)
 	module_put(rdev->owner);
 }
 
-/**
- * devm_regulator_get_exclusive - Resource managed regulator_get_exclusive()
- * @dev: device for regulator "consumer"
- * @id: Supply name or regulator ID.
- *
- * Managed regulator_get_exclusive(). Regulators returned from this function
- * are automatically regulator_put() on driver detach. See regulator_get() for
- * more information.
- */
-struct regulator *devm_regulator_get_exclusive(struct device *dev,
-					       const char *id)
-{
-	struct regulator **ptr, *regulator;
-
-	ptr = devres_alloc(devm_regulator_release, sizeof(*ptr), GFP_KERNEL);
-	if (!ptr)
-		return ERR_PTR(-ENOMEM);
-
-	regulator = _regulator_get(dev, id, 1);
-	if (!IS_ERR(regulator)) {
-		*ptr = regulator;
-		devres_add(dev, ptr);
-	} else {
-		devres_free(ptr);
-	}
-
-	return regulator;
-}
-EXPORT_SYMBOL_GPL(devm_regulator_get_exclusive);
-
 /**
  * regulator_put - "free" the regulator source
  * @regulator: regulator source
-- 
cgit 


From 0cdfcc0f9352a4c076fbb51299e2b12a35619a51 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 11 Sep 2013 13:15:40 +0100
Subject: regulator: core: Split devres code out into a separate file

Cut down on the size of core.c a bit more and ensure that the devres
versions of things don't do too much peering inside the internals of
the APIs they wrap.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/Makefile   |   2 +-
 drivers/regulator/core.c     | 252 +------------------------------------------
 drivers/regulator/devres.c   | 252 +++++++++++++++++++++++++++++++++++++++++++
 drivers/regulator/internal.h |  38 +++++++
 4 files changed, 292 insertions(+), 252 deletions(-)
 create mode 100644 drivers/regulator/devres.c
 create mode 100644 drivers/regulator/internal.h

diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 185cce246022..69db4c8bb5c9 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -3,7 +3,7 @@
 #
 
 
-obj-$(CONFIG_REGULATOR) += core.o dummy.o fixed-helper.o helpers.o
+obj-$(CONFIG_REGULATOR) += core.o dummy.o fixed-helper.o helpers.o devres.o
 obj-$(CONFIG_OF) += of_regulator.o
 obj-$(CONFIG_REGULATOR_FIXED_VOLTAGE) += fixed.o
 obj-$(CONFIG_REGULATOR_VIRTUAL_CONSUMER) += virtual.o
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 388397bb3192..906deb7354ed 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -36,6 +36,7 @@
 #include <trace/events/regulator.h>
 
 #include "dummy.h"
+#include "internal.h"
 
 #define rdev_crit(rdev, fmt, ...)					\
 	pr_crit("%s: " fmt, rdev_get_name(rdev), ##__VA_ARGS__)
@@ -82,25 +83,6 @@ struct regulator_enable_gpio {
 	unsigned int ena_gpio_invert:1;
 };
 
-/*
- * struct regulator
- *
- * One for each consumer device.
- */
-struct regulator {
-	struct device *dev;
-	struct list_head list;
-	unsigned int always_on:1;
-	unsigned int bypass:1;
-	int uA_load;
-	int min_uV;
-	int max_uV;
-	char *supply_name;
-	struct device_attribute dev_attr;
-	struct regulator_dev *rdev;
-	struct dentry *debugfs;
-};
-
 static int _regulator_is_enabled(struct regulator_dev *rdev);
 static int _regulator_disable(struct regulator_dev *rdev);
 static int _regulator_get_voltage(struct regulator_dev *rdev);
@@ -1334,50 +1316,6 @@ out:
 	return regulator;
 }
 
-enum {
-	NORMAL_GET,
-	EXCLUSIVE_GET,
-	OPTIONAL_GET,
-};
-
-static void devm_regulator_release(struct device *dev, void *res)
-{
-	regulator_put(*(struct regulator **)res);
-}
-
-static struct regulator *_devm_regulator_get(struct device *dev, const char *id,
-					     int get_type)
-{
-	struct regulator **ptr, *regulator;
-
-	ptr = devres_alloc(devm_regulator_release, sizeof(*ptr), GFP_KERNEL);
-	if (!ptr)
-		return ERR_PTR(-ENOMEM);
-
-	switch (get_type) {
-	case NORMAL_GET:
-		regulator = regulator_get(dev, id);
-		break;
-	case EXCLUSIVE_GET:
-		regulator = regulator_get_exclusive(dev, id);
-		break;
-	case OPTIONAL_GET:
-		regulator = regulator_get_optional(dev, id);
-		break;
-	default:
-		regulator = ERR_PTR(-EINVAL);
-	}
-
-	if (!IS_ERR(regulator)) {
-		*ptr = regulator;
-		devres_add(dev, ptr);
-	} else {
-		devres_free(ptr);
-	}
-
-	return regulator;
-}
-
 /**
  * regulator_get - lookup and obtain a reference to a regulator.
  * @dev: device for regulator "consumer"
@@ -1397,21 +1335,6 @@ struct regulator *regulator_get(struct device *dev, const char *id)
 }
 EXPORT_SYMBOL_GPL(regulator_get);
 
-/**
- * devm_regulator_get - Resource managed regulator_get()
- * @dev: device for regulator "consumer"
- * @id: Supply name or regulator ID.
- *
- * Managed regulator_get(). Regulators returned from this function are
- * automatically regulator_put() on driver detach. See regulator_get() for more
- * information.
- */
-struct regulator *devm_regulator_get(struct device *dev, const char *id)
-{
-	return _devm_regulator_get(dev, id, NORMAL_GET);
-}
-EXPORT_SYMBOL_GPL(devm_regulator_get);
-
 /**
  * regulator_get_exclusive - obtain exclusive access to a regulator.
  * @dev: device for regulator "consumer"
@@ -1439,22 +1362,6 @@ struct regulator *regulator_get_exclusive(struct device *dev, const char *id)
 }
 EXPORT_SYMBOL_GPL(regulator_get_exclusive);
 
-/**
- * devm_regulator_get_exclusive - Resource managed regulator_get_exclusive()
- * @dev: device for regulator "consumer"
- * @id: Supply name or regulator ID.
- *
- * Managed regulator_get_exclusive(). Regulators returned from this function
- * are automatically regulator_put() on driver detach. See regulator_get() for
- * more information.
- */
-struct regulator *devm_regulator_get_exclusive(struct device *dev,
-					       const char *id)
-{
-	return _devm_regulator_get(dev, id, EXCLUSIVE_GET);
-}
-EXPORT_SYMBOL_GPL(devm_regulator_get_exclusive);
-
 /**
  * regulator_get_optional - obtain optional access to a regulator.
  * @dev: device for regulator "consumer"
@@ -1484,22 +1391,6 @@ struct regulator *regulator_get_optional(struct device *dev, const char *id)
 }
 EXPORT_SYMBOL_GPL(regulator_get_optional);
 
-/**
- * devm_regulator_get_optional - Resource managed regulator_get_optional()
- * @dev: device for regulator "consumer"
- * @id: Supply name or regulator ID.
- *
- * Managed regulator_get_optional(). Regulators returned from this
- * function are automatically regulator_put() on driver detach. See
- * regulator_get_optional() for more information.
- */
-struct regulator *devm_regulator_get_optional(struct device *dev,
-					      const char *id)
-{
-	return _devm_regulator_get(dev, id, OPTIONAL_GET);
-}
-EXPORT_SYMBOL_GPL(devm_regulator_get_optional);
-
 /* Locks held by regulator_put() */
 static void _regulator_put(struct regulator *regulator)
 {
@@ -1541,35 +1432,6 @@ void regulator_put(struct regulator *regulator)
 }
 EXPORT_SYMBOL_GPL(regulator_put);
 
-static int devm_regulator_match(struct device *dev, void *res, void *data)
-{
-	struct regulator **r = res;
-	if (!r || !*r) {
-		WARN_ON(!r || !*r);
-		return 0;
-	}
-	return *r == data;
-}
-
-/**
- * devm_regulator_put - Resource managed regulator_put()
- * @regulator: regulator to free
- *
- * Deallocate a regulator allocated with devm_regulator_get(). Normally
- * this function will not need to be called and the resource management
- * code will ensure that the resource is freed.
- */
-void devm_regulator_put(struct regulator *regulator)
-{
-	int rc;
-
-	rc = devres_release(regulator->dev, devm_regulator_release,
-			    devm_regulator_match, regulator);
-	if (rc != 0)
-		WARN_ON(rc);
-}
-EXPORT_SYMBOL_GPL(devm_regulator_put);
-
 /* Manage enable GPIO list. Same GPIO pin can be shared among regulators */
 static int regulator_ena_gpio_request(struct regulator_dev *rdev,
 				const struct regulator_config *config)
@@ -2909,52 +2771,6 @@ err:
 }
 EXPORT_SYMBOL_GPL(regulator_bulk_get);
 
-/**
- * devm_regulator_bulk_get - managed get multiple regulator consumers
- *
- * @dev:           Device to supply
- * @num_consumers: Number of consumers to register
- * @consumers:     Configuration of consumers; clients are stored here.
- *
- * @return 0 on success, an errno on failure.
- *
- * This helper function allows drivers to get several regulator
- * consumers in one operation with management, the regulators will
- * automatically be freed when the device is unbound.  If any of the
- * regulators cannot be acquired then any regulators that were
- * allocated will be freed before returning to the caller.
- */
-int devm_regulator_bulk_get(struct device *dev, int num_consumers,
-			    struct regulator_bulk_data *consumers)
-{
-	int i;
-	int ret;
-
-	for (i = 0; i < num_consumers; i++)
-		consumers[i].consumer = NULL;
-
-	for (i = 0; i < num_consumers; i++) {
-		consumers[i].consumer = devm_regulator_get(dev,
-							   consumers[i].supply);
-		if (IS_ERR(consumers[i].consumer)) {
-			ret = PTR_ERR(consumers[i].consumer);
-			dev_err(dev, "Failed to get supply '%s': %d\n",
-				consumers[i].supply, ret);
-			consumers[i].consumer = NULL;
-			goto err;
-		}
-	}
-
-	return 0;
-
-err:
-	for (i = 0; i < num_consumers && consumers[i].consumer; i++)
-		devm_regulator_put(consumers[i].consumer);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(devm_regulator_bulk_get);
-
 static void regulator_bulk_enable_async(void *data, async_cookie_t cookie)
 {
 	struct regulator_bulk_data *bulk = data;
@@ -3489,44 +3305,6 @@ clean:
 }
 EXPORT_SYMBOL_GPL(regulator_register);
 
-static void devm_rdev_release(struct device *dev, void *res)
-{
-	regulator_unregister(*(struct regulator_dev **)res);
-}
-
-/**
- * devm_regulator_register - Resource managed regulator_register()
- * @regulator_desc: regulator to register
- * @config: runtime configuration for regulator
- *
- * Called by regulator drivers to register a regulator.  Returns a
- * valid pointer to struct regulator_dev on success or an ERR_PTR() on
- * error.  The regulator will automatically be released when the device
- * is unbound.
- */
-struct regulator_dev *devm_regulator_register(struct device *dev,
-				  const struct regulator_desc *regulator_desc,
-				  const struct regulator_config *config)
-{
-	struct regulator_dev **ptr, *rdev;
-
-	ptr = devres_alloc(devm_rdev_release, sizeof(*ptr),
-			   GFP_KERNEL);
-	if (!ptr)
-		return ERR_PTR(-ENOMEM);
-
-	rdev = regulator_register(regulator_desc, config);
-	if (!IS_ERR(rdev)) {
-		*ptr = rdev;
-		devres_add(dev, ptr);
-	} else {
-		devres_free(ptr);
-	}
-
-	return rdev;
-}
-EXPORT_SYMBOL_GPL(devm_regulator_register);
-
 /**
  * regulator_unregister - unregister regulator
  * @rdev: regulator to unregister
@@ -3556,34 +3334,6 @@ void regulator_unregister(struct regulator_dev *rdev)
 }
 EXPORT_SYMBOL_GPL(regulator_unregister);
 
-static int devm_rdev_match(struct device *dev, void *res, void *data)
-{
-	struct regulator_dev **r = res;
-	if (!r || !*r) {
-		WARN_ON(!r || !*r);
-		return 0;
-	}
-	return *r == data;
-}
-
-/**
- * devm_regulator_unregister - Resource managed regulator_unregister()
- * @regulator: regulator to free
- *
- * Unregister a regulator registered with devm_regulator_register().
- * Normally this function will not need to be called and the resource
- * management code will ensure that the resource is freed.
- */
-void devm_regulator_unregister(struct device *dev, struct regulator_dev *rdev)
-{
-	int rc;
-
-	rc = devres_release(dev, devm_rdev_release, devm_rdev_match, rdev);
-	if (rc != 0)
-		WARN_ON(rc);
-}
-EXPORT_SYMBOL_GPL(devm_regulator_unregister);
-
 /**
  * regulator_suspend_prepare - prepare regulators for system wide suspend
  * @state: system suspend state
diff --git a/drivers/regulator/devres.c b/drivers/regulator/devres.c
new file mode 100644
index 000000000000..2672a029fa25
--- /dev/null
+++ b/drivers/regulator/devres.c
@@ -0,0 +1,252 @@
+/*
+ * devres.c  --  Voltage/Current Regulator framework devres implementation.
+ *
+ * Copyright 2013 Linaro Ltd
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/err.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+#include <linux/regulator/driver.h>
+#include <linux/module.h>
+
+#include "internal.h"
+
+enum {
+	NORMAL_GET,
+	EXCLUSIVE_GET,
+	OPTIONAL_GET,
+};
+
+static void devm_regulator_release(struct device *dev, void *res)
+{
+	regulator_put(*(struct regulator **)res);
+}
+
+static struct regulator *_devm_regulator_get(struct device *dev, const char *id,
+					     int get_type)
+{
+	struct regulator **ptr, *regulator;
+
+	ptr = devres_alloc(devm_regulator_release, sizeof(*ptr), GFP_KERNEL);
+	if (!ptr)
+		return ERR_PTR(-ENOMEM);
+
+	switch (get_type) {
+	case NORMAL_GET:
+		regulator = regulator_get(dev, id);
+		break;
+	case EXCLUSIVE_GET:
+		regulator = regulator_get_exclusive(dev, id);
+		break;
+	case OPTIONAL_GET:
+		regulator = regulator_get_optional(dev, id);
+		break;
+	default:
+		regulator = ERR_PTR(-EINVAL);
+	}
+
+	if (!IS_ERR(regulator)) {
+		*ptr = regulator;
+		devres_add(dev, ptr);
+	} else {
+		devres_free(ptr);
+	}
+
+	return regulator;
+}
+
+/**
+ * devm_regulator_get - Resource managed regulator_get()
+ * @dev: device for regulator "consumer"
+ * @id: Supply name or regulator ID.
+ *
+ * Managed regulator_get(). Regulators returned from this function are
+ * automatically regulator_put() on driver detach. See regulator_get() for more
+ * information.
+ */
+struct regulator *devm_regulator_get(struct device *dev, const char *id)
+{
+	return _devm_regulator_get(dev, id, NORMAL_GET);
+}
+EXPORT_SYMBOL_GPL(devm_regulator_get);
+
+/**
+ * devm_regulator_get_exclusive - Resource managed regulator_get_exclusive()
+ * @dev: device for regulator "consumer"
+ * @id: Supply name or regulator ID.
+ *
+ * Managed regulator_get_exclusive(). Regulators returned from this function
+ * are automatically regulator_put() on driver detach. See regulator_get() for
+ * more information.
+ */
+struct regulator *devm_regulator_get_exclusive(struct device *dev,
+					       const char *id)
+{
+	return _devm_regulator_get(dev, id, EXCLUSIVE_GET);
+}
+EXPORT_SYMBOL_GPL(devm_regulator_get_exclusive);
+
+/**
+ * devm_regulator_get_optional - Resource managed regulator_get_optional()
+ * @dev: device for regulator "consumer"
+ * @id: Supply name or regulator ID.
+ *
+ * Managed regulator_get_optional(). Regulators returned from this
+ * function are automatically regulator_put() on driver detach. See
+ * regulator_get_optional() for more information.
+ */
+struct regulator *devm_regulator_get_optional(struct device *dev,
+					      const char *id)
+{
+	return _devm_regulator_get(dev, id, OPTIONAL_GET);
+}
+EXPORT_SYMBOL_GPL(devm_regulator_get_optional);
+
+static int devm_regulator_match(struct device *dev, void *res, void *data)
+{
+	struct regulator **r = res;
+	if (!r || !*r) {
+		WARN_ON(!r || !*r);
+		return 0;
+	}
+	return *r == data;
+}
+
+/**
+ * devm_regulator_put - Resource managed regulator_put()
+ * @regulator: regulator to free
+ *
+ * Deallocate a regulator allocated with devm_regulator_get(). Normally
+ * this function will not need to be called and the resource management
+ * code will ensure that the resource is freed.
+ */
+void devm_regulator_put(struct regulator *regulator)
+{
+	int rc;
+
+	rc = devres_release(regulator->dev, devm_regulator_release,
+			    devm_regulator_match, regulator);
+	if (rc != 0)
+		WARN_ON(rc);
+}
+EXPORT_SYMBOL_GPL(devm_regulator_put);
+
+/**
+ * devm_regulator_bulk_get - managed get multiple regulator consumers
+ *
+ * @dev:           Device to supply
+ * @num_consumers: Number of consumers to register
+ * @consumers:     Configuration of consumers; clients are stored here.
+ *
+ * @return 0 on success, an errno on failure.
+ *
+ * This helper function allows drivers to get several regulator
+ * consumers in one operation with management, the regulators will
+ * automatically be freed when the device is unbound.  If any of the
+ * regulators cannot be acquired then any regulators that were
+ * allocated will be freed before returning to the caller.
+ */
+int devm_regulator_bulk_get(struct device *dev, int num_consumers,
+			    struct regulator_bulk_data *consumers)
+{
+	int i;
+	int ret;
+
+	for (i = 0; i < num_consumers; i++)
+		consumers[i].consumer = NULL;
+
+	for (i = 0; i < num_consumers; i++) {
+		consumers[i].consumer = devm_regulator_get(dev,
+							   consumers[i].supply);
+		if (IS_ERR(consumers[i].consumer)) {
+			ret = PTR_ERR(consumers[i].consumer);
+			dev_err(dev, "Failed to get supply '%s': %d\n",
+				consumers[i].supply, ret);
+			consumers[i].consumer = NULL;
+			goto err;
+		}
+	}
+
+	return 0;
+
+err:
+	for (i = 0; i < num_consumers && consumers[i].consumer; i++)
+		devm_regulator_put(consumers[i].consumer);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(devm_regulator_bulk_get);
+
+static void devm_rdev_release(struct device *dev, void *res)
+{
+	regulator_unregister(*(struct regulator_dev **)res);
+}
+
+/**
+ * devm_regulator_register - Resource managed regulator_register()
+ * @regulator_desc: regulator to register
+ * @config: runtime configuration for regulator
+ *
+ * Called by regulator drivers to register a regulator.  Returns a
+ * valid pointer to struct regulator_dev on success or an ERR_PTR() on
+ * error.  The regulator will automatically be released when the device
+ * is unbound.
+ */
+struct regulator_dev *devm_regulator_register(struct device *dev,
+				  const struct regulator_desc *regulator_desc,
+				  const struct regulator_config *config)
+{
+	struct regulator_dev **ptr, *rdev;
+
+	ptr = devres_alloc(devm_rdev_release, sizeof(*ptr),
+			   GFP_KERNEL);
+	if (!ptr)
+		return ERR_PTR(-ENOMEM);
+
+	rdev = regulator_register(regulator_desc, config);
+	if (!IS_ERR(rdev)) {
+		*ptr = rdev;
+		devres_add(dev, ptr);
+	} else {
+		devres_free(ptr);
+	}
+
+	return rdev;
+}
+EXPORT_SYMBOL_GPL(devm_regulator_register);
+
+static int devm_rdev_match(struct device *dev, void *res, void *data)
+{
+	struct regulator_dev **r = res;
+	if (!r || !*r) {
+		WARN_ON(!r || !*r);
+		return 0;
+	}
+	return *r == data;
+}
+
+/**
+ * devm_regulator_unregister - Resource managed regulator_unregister()
+ * @regulator: regulator to free
+ *
+ * Unregister a regulator registered with devm_regulator_register().
+ * Normally this function will not need to be called and the resource
+ * management code will ensure that the resource is freed.
+ */
+void devm_regulator_unregister(struct device *dev, struct regulator_dev *rdev)
+{
+	int rc;
+
+	rc = devres_release(dev, devm_rdev_release, devm_rdev_match, rdev);
+	if (rc != 0)
+		WARN_ON(rc);
+}
+EXPORT_SYMBOL_GPL(devm_regulator_unregister);
diff --git a/drivers/regulator/internal.h b/drivers/regulator/internal.h
new file mode 100644
index 000000000000..84bbda10c396
--- /dev/null
+++ b/drivers/regulator/internal.h
@@ -0,0 +1,38 @@
+/*
+ * internal.h  --  Voltage/Current Regulator framework internal code
+ *
+ * Copyright 2007, 2008 Wolfson Microelectronics PLC.
+ * Copyright 2008 SlimLogic Ltd.
+ *
+ * Author: Liam Girdwood <lrg@slimlogic.co.uk>
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ */
+
+#ifndef __REGULATOR_INTERNAL_H
+#define __REGULATOR_INTERNAL_H
+
+/*
+ * struct regulator
+ *
+ * One for each consumer device.
+ */
+struct regulator {
+	struct device *dev;
+	struct list_head list;
+	unsigned int always_on:1;
+	unsigned int bypass:1;
+	int uA_load;
+	int min_uV;
+	int max_uV;
+	char *supply_name;
+	struct device_attribute dev_attr;
+	struct regulator_dev *rdev;
+	struct dentry *debugfs;
+};
+
+#endif
-- 
cgit 


From 4ddfebd3b0d5b65c69492408bb67fd1202104643 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Fri, 13 Sep 2013 19:50:37 +0100
Subject: regulator: core: Provide a dummy regulator with full constraints

When a system has said that it has fully specified constraints for its
regulators it is still possible that some supplies may be missing,
especially if regulator support has been added to a driver after the
board was integrated. We can handle such situations more gracefully by
providing a dummy regulator.

Unless the caller has specifically indicated that the system design may
not include a given regulator by using regulator_get_optional() or that
it needs its interactions to have an effect using regulator_get_exclusive()
provide a dummy regulator if we can't locate a real one.

The kconfig option REGULATOR_DUMMY that provided similar behaviour for all
regulators has been removed, systems that need it should flag that they
have full constraints instead.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/Kconfig | 10 ----------
 drivers/regulator/core.c  | 36 +++++++++++++++++++-----------------
 2 files changed, 19 insertions(+), 27 deletions(-)

diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index dfe58096b374..0417ce327cd8 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -28,16 +28,6 @@ config REGULATOR_DEBUG
 	help
 	  Say yes here to enable debugging support.
 
-config REGULATOR_DUMMY
-	bool "Provide a dummy regulator if regulator lookups fail"
-	help
-	  If this option is enabled then when a regulator lookup fails
-	  and the board has not specified that it has provided full
-	  constraints the regulator core will provide an always
-	  enabled dummy regulator, allowing consumer drivers to continue.
-
-	  A warning will be generated when this substitution is done.
-
 config REGULATOR_FIXED_VOLTAGE
 	tristate "Fixed voltage regulator support"
 	help
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index a01b8b3b70ca..8fd170788c3e 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1243,7 +1243,7 @@ static struct regulator_dev *regulator_dev_lookup(struct device *dev,
 
 /* Internal regulator request function */
 static struct regulator *_regulator_get(struct device *dev, const char *id,
-					bool exclusive)
+					bool exclusive, bool allow_dummy)
 {
 	struct regulator_dev *rdev;
 	struct regulator *regulator = ERR_PTR(-EPROBE_DEFER);
@@ -1268,30 +1268,32 @@ static struct regulator *_regulator_get(struct device *dev, const char *id,
 	 * If we have return value from dev_lookup fail, we do not expect to
 	 * succeed, so, quit with appropriate error value
 	 */
-	if (ret) {
+	if (ret && ret != -ENODEV) {
 		regulator = ERR_PTR(ret);
 		goto out;
 	}
 
-	if (board_wants_dummy_regulator) {
-		rdev = dummy_regulator_rdev;
-		goto found;
-	}
-
-#ifdef CONFIG_REGULATOR_DUMMY
 	if (!devname)
 		devname = "deviceless";
 
-	/* If the board didn't flag that it was fully constrained then
-	 * substitute in a dummy regulator so consumers can continue.
+	/*
+	 * Assume that a regulator is physically present and enabled
+	 * even if it isn't hooked up and just provide a dummy.
 	 */
-	if (!has_full_constraints) {
-		pr_warn("%s supply %s not found, using dummy regulator\n",
-			devname, id);
+	if (has_full_constraints && allow_dummy) {
+		/*
+		 * Log the substitution if regulator configuration is
+		 * not complete to help development.
+		 */
+		if (!has_full_constraints)
+			pr_warn("%s supply %s not found, using dummy regulator\n",
+				devname, id);
+
 		rdev = dummy_regulator_rdev;
 		goto found;
+	} else {
+		dev_err(dev, "dummy supplies not allowed\n");
 	}
-#endif
 
 	mutex_unlock(&regulator_list_mutex);
 	return regulator;
@@ -1349,7 +1351,7 @@ out:
  */
 struct regulator *regulator_get(struct device *dev, const char *id)
 {
-	return _regulator_get(dev, id, false);
+	return _regulator_get(dev, id, false, true);
 }
 EXPORT_SYMBOL_GPL(regulator_get);
 
@@ -1410,7 +1412,7 @@ EXPORT_SYMBOL_GPL(devm_regulator_get);
  */
 struct regulator *regulator_get_exclusive(struct device *dev, const char *id)
 {
-	return _regulator_get(dev, id, true);
+	return _regulator_get(dev, id, true, false);
 }
 EXPORT_SYMBOL_GPL(regulator_get_exclusive);
 
@@ -1439,7 +1441,7 @@ EXPORT_SYMBOL_GPL(regulator_get_exclusive);
  */
 struct regulator *regulator_get_optional(struct device *dev, const char *id)
 {
-	return _regulator_get(dev, id, 0);
+	return _regulator_get(dev, id, false, false);
 }
 EXPORT_SYMBOL_GPL(regulator_get_optional);
 
-- 
cgit 


From 4f0ac6dabf867095b31f851ba0d0ceaca2f87e2e Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Fri, 13 Sep 2013 19:51:47 +0100
Subject: regulator: core: Remove unused regulator_use_dummy_regulator()

No boards have used this functionality and the new default of providing
dummy regulators by default provides a better solution to the problem it
was trying to solve.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/core.c          | 17 -----------------
 include/linux/regulator/machine.h |  5 -----
 2 files changed, 22 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 8fd170788c3e..ac3a864d3635 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -53,7 +53,6 @@ static LIST_HEAD(regulator_list);
 static LIST_HEAD(regulator_map_list);
 static LIST_HEAD(regulator_ena_gpio_list);
 static bool has_full_constraints;
-static bool board_wants_dummy_regulator;
 
 static struct dentry *debugfs_root;
 
@@ -3615,22 +3614,6 @@ void regulator_has_full_constraints(void)
 }
 EXPORT_SYMBOL_GPL(regulator_has_full_constraints);
 
-/**
- * regulator_use_dummy_regulator - Provide a dummy regulator when none is found
- *
- * Calling this function will cause the regulator API to provide a
- * dummy regulator to consumers if no physical regulator is found,
- * allowing most consumers to proceed as though a regulator were
- * configured.  This allows systems such as those with software
- * controllable regulators for the CPU core only to be brought up more
- * readily.
- */
-void regulator_use_dummy_regulator(void)
-{
-	board_wants_dummy_regulator = true;
-}
-EXPORT_SYMBOL_GPL(regulator_use_dummy_regulator);
-
 /**
  * rdev_get_drvdata - get rdev regulator driver data
  * @rdev: regulator
diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h
index 999b20ce06cf..a9f7c55a4d4d 100644
--- a/include/linux/regulator/machine.h
+++ b/include/linux/regulator/machine.h
@@ -193,15 +193,10 @@ int regulator_suspend_finish(void);
 
 #ifdef CONFIG_REGULATOR
 void regulator_has_full_constraints(void);
-void regulator_use_dummy_regulator(void);
 #else
 static inline void regulator_has_full_constraints(void)
 {
 }
-
-static inline void regulator_use_dummy_regulator(void)
-{
-}
 #endif
 
 #endif
-- 
cgit 


From 32b6d3f6027a05f42987f74deed48dc13cd5a11d Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Wed, 21 Aug 2013 16:18:16 +0530
Subject: regulator: palmas: add support for external control of rails

Palmas rails like LDOs, SMPSs, REGENs, SYSENs can be enable and disable
by register programming through I2C communication as well as it can be
enable/disable with the external control input ENABLE1, ENABLE2 and NSLEEP.

Add support for configuring these rails to be controlled by external control
inputs. This is require to configure the rail's control register as well as
configuration of resource register.

Provide the external input names through parameter "roof-floor". Updated the
DT binding document to details different value of the roof-floor.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 .../devicetree/bindings/regulator/palmas-pmic.txt  |  12 +-
 drivers/regulator/palmas-regulator.c               | 164 ++++++++++++++++++++-
 2 files changed, 167 insertions(+), 9 deletions(-)

diff --git a/Documentation/devicetree/bindings/regulator/palmas-pmic.txt b/Documentation/devicetree/bindings/regulator/palmas-pmic.txt
index 875639ae0606..42e6b6bc48ff 100644
--- a/Documentation/devicetree/bindings/regulator/palmas-pmic.txt
+++ b/Documentation/devicetree/bindings/regulator/palmas-pmic.txt
@@ -26,11 +26,17 @@ Optional nodes:
 
 	       For ti,palmas-pmic - smps12, smps123, smps3 depending on OTP,
 	       smps45, smps457, smps7 depending on variant, smps6, smps[8-9],
-	       smps10_out2, smps10_out1, do[1-9], ldoln, ldousb.
+	       smps10_out2, smps10_out1, ldo[1-9], ldoln, ldousb.
 
 	       Optional sub-node properties:
 	       ti,warm-reset - maintain voltage during warm reset(boolean)
-	       ti,roof-floor - control voltage selection by pin(boolean)
+	       ti,roof-floor - This takes as optional argument on platform supporting
+	       the rail from desired external control. If there is no argument then
+	       it will be assume that it is controlled by NSLEEP pin.
+	       The valid value for external pins are:
+			ENABLE1 then 1,
+			ENABLE2 then 2 or
+			NSLEEP then 3.
 	       ti,mode-sleep - mode to adopt in pmic sleep 0 - off, 1 - auto,
 	       2 - eco, 3 - forced pwm
 	       ti,smps-range - OTP has the wrong range set for the hardware so override
@@ -61,7 +67,7 @@ pmic {
 			regulator-always-on;
 			regulator-boot-on;
 			ti,warm-reset;
-			ti,roof-floor;
+			ti,roof-floor = <1>; /* ENABLE1 control */
 			ti,mode-sleep = <0>;
 			ti,smps-range = <1>;
 		};
diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index 488dfe7ce9a6..3c08e1b5b289 100644
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -33,6 +33,7 @@ struct regs_info {
 	u8	vsel_addr;
 	u8	ctrl_addr;
 	u8	tstep_addr;
+	int	sleep_id;
 };
 
 static const struct regs_info palmas_regs_info[] = {
@@ -42,6 +43,7 @@ static const struct regs_info palmas_regs_info[] = {
 		.vsel_addr	= PALMAS_SMPS12_VOLTAGE,
 		.ctrl_addr	= PALMAS_SMPS12_CTRL,
 		.tstep_addr	= PALMAS_SMPS12_TSTEP,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_SMPS12,
 	},
 	{
 		.name		= "SMPS123",
@@ -49,12 +51,14 @@ static const struct regs_info palmas_regs_info[] = {
 		.vsel_addr	= PALMAS_SMPS12_VOLTAGE,
 		.ctrl_addr	= PALMAS_SMPS12_CTRL,
 		.tstep_addr	= PALMAS_SMPS12_TSTEP,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_SMPS12,
 	},
 	{
 		.name		= "SMPS3",
 		.sname		= "smps3-in",
 		.vsel_addr	= PALMAS_SMPS3_VOLTAGE,
 		.ctrl_addr	= PALMAS_SMPS3_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_SMPS3,
 	},
 	{
 		.name		= "SMPS45",
@@ -62,6 +66,7 @@ static const struct regs_info palmas_regs_info[] = {
 		.vsel_addr	= PALMAS_SMPS45_VOLTAGE,
 		.ctrl_addr	= PALMAS_SMPS45_CTRL,
 		.tstep_addr	= PALMAS_SMPS45_TSTEP,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_SMPS45,
 	},
 	{
 		.name		= "SMPS457",
@@ -69,6 +74,7 @@ static const struct regs_info palmas_regs_info[] = {
 		.vsel_addr	= PALMAS_SMPS45_VOLTAGE,
 		.ctrl_addr	= PALMAS_SMPS45_CTRL,
 		.tstep_addr	= PALMAS_SMPS45_TSTEP,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_SMPS45,
 	},
 	{
 		.name		= "SMPS6",
@@ -76,12 +82,14 @@ static const struct regs_info palmas_regs_info[] = {
 		.vsel_addr	= PALMAS_SMPS6_VOLTAGE,
 		.ctrl_addr	= PALMAS_SMPS6_CTRL,
 		.tstep_addr	= PALMAS_SMPS6_TSTEP,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_SMPS6,
 	},
 	{
 		.name		= "SMPS7",
 		.sname		= "smps7-in",
 		.vsel_addr	= PALMAS_SMPS7_VOLTAGE,
 		.ctrl_addr	= PALMAS_SMPS7_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_SMPS7,
 	},
 	{
 		.name		= "SMPS8",
@@ -89,108 +97,128 @@ static const struct regs_info palmas_regs_info[] = {
 		.vsel_addr	= PALMAS_SMPS8_VOLTAGE,
 		.ctrl_addr	= PALMAS_SMPS8_CTRL,
 		.tstep_addr	= PALMAS_SMPS8_TSTEP,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_SMPS8,
 	},
 	{
 		.name		= "SMPS9",
 		.sname		= "smps9-in",
 		.vsel_addr	= PALMAS_SMPS9_VOLTAGE,
 		.ctrl_addr	= PALMAS_SMPS9_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_SMPS9,
 	},
 	{
 		.name		= "SMPS10_OUT2",
 		.sname		= "smps10-in",
 		.ctrl_addr	= PALMAS_SMPS10_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_SMPS10,
 	},
 	{
 		.name		= "SMPS10_OUT1",
 		.sname		= "smps10-out2",
 		.ctrl_addr	= PALMAS_SMPS10_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_SMPS10,
 	},
 	{
 		.name		= "LDO1",
 		.sname		= "ldo1-in",
 		.vsel_addr	= PALMAS_LDO1_VOLTAGE,
 		.ctrl_addr	= PALMAS_LDO1_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_LDO1,
 	},
 	{
 		.name		= "LDO2",
 		.sname		= "ldo2-in",
 		.vsel_addr	= PALMAS_LDO2_VOLTAGE,
 		.ctrl_addr	= PALMAS_LDO2_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_LDO2,
 	},
 	{
 		.name		= "LDO3",
 		.sname		= "ldo3-in",
 		.vsel_addr	= PALMAS_LDO3_VOLTAGE,
 		.ctrl_addr	= PALMAS_LDO3_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_LDO3,
 	},
 	{
 		.name		= "LDO4",
 		.sname		= "ldo4-in",
 		.vsel_addr	= PALMAS_LDO4_VOLTAGE,
 		.ctrl_addr	= PALMAS_LDO4_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_LDO4,
 	},
 	{
 		.name		= "LDO5",
 		.sname		= "ldo5-in",
 		.vsel_addr	= PALMAS_LDO5_VOLTAGE,
 		.ctrl_addr	= PALMAS_LDO5_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_LDO5,
 	},
 	{
 		.name		= "LDO6",
 		.sname		= "ldo6-in",
 		.vsel_addr	= PALMAS_LDO6_VOLTAGE,
 		.ctrl_addr	= PALMAS_LDO6_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_LDO6,
 	},
 	{
 		.name		= "LDO7",
 		.sname		= "ldo7-in",
 		.vsel_addr	= PALMAS_LDO7_VOLTAGE,
 		.ctrl_addr	= PALMAS_LDO7_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_LDO7,
 	},
 	{
 		.name		= "LDO8",
 		.sname		= "ldo8-in",
 		.vsel_addr	= PALMAS_LDO8_VOLTAGE,
 		.ctrl_addr	= PALMAS_LDO8_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_LDO8,
 	},
 	{
 		.name		= "LDO9",
 		.sname		= "ldo9-in",
 		.vsel_addr	= PALMAS_LDO9_VOLTAGE,
 		.ctrl_addr	= PALMAS_LDO9_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_LDO9,
 	},
 	{
 		.name		= "LDOLN",
 		.sname		= "ldoln-in",
 		.vsel_addr	= PALMAS_LDOLN_VOLTAGE,
 		.ctrl_addr	= PALMAS_LDOLN_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_LDOLN,
 	},
 	{
 		.name		= "LDOUSB",
 		.sname		= "ldousb-in",
 		.vsel_addr	= PALMAS_LDOUSB_VOLTAGE,
 		.ctrl_addr	= PALMAS_LDOUSB_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_LDOUSB,
 	},
 	{
 		.name		= "REGEN1",
 		.ctrl_addr	= PALMAS_REGEN1_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_REGEN1,
 	},
 	{
 		.name		= "REGEN2",
 		.ctrl_addr	= PALMAS_REGEN2_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_REGEN2,
 	},
 	{
 		.name		= "REGEN3",
 		.ctrl_addr	= PALMAS_REGEN3_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_REGEN3,
 	},
 	{
 		.name		= "SYSEN1",
 		.ctrl_addr	= PALMAS_SYSEN1_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_SYSEN1,
 	},
 	{
 		.name		= "SYSEN2",
 		.ctrl_addr	= PALMAS_SYSEN2_CTRL,
+		.sleep_id	= PALMAS_EXTERNAL_REQSTR_ID_SYSEN2,
 	},
 };
 
@@ -484,6 +512,17 @@ static struct regulator_ops palmas_ops_smps = {
 	.set_ramp_delay		= palmas_smps_set_ramp_delay,
 };
 
+static struct regulator_ops palmas_ops_ext_control_smps = {
+	.set_mode		= palmas_set_mode_smps,
+	.get_mode		= palmas_get_mode_smps,
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
+	.list_voltage		= palmas_list_voltage_smps,
+	.map_voltage		= palmas_map_voltage_smps,
+	.set_voltage_time_sel	= palma_smps_set_voltage_smps_time_sel,
+	.set_ramp_delay		= palmas_smps_set_ramp_delay,
+};
+
 static struct regulator_ops palmas_ops_smps10 = {
 	.is_enabled		= regulator_is_enabled_regmap,
 	.enable			= regulator_enable_regmap,
@@ -519,12 +558,37 @@ static struct regulator_ops palmas_ops_ldo = {
 	.map_voltage		= regulator_map_voltage_linear,
 };
 
+static struct regulator_ops palmas_ops_ext_control_ldo = {
+	.get_voltage_sel	= regulator_get_voltage_sel_regmap,
+	.set_voltage_sel	= regulator_set_voltage_sel_regmap,
+	.list_voltage		= regulator_list_voltage_linear,
+	.map_voltage		= regulator_map_voltage_linear,
+};
+
 static struct regulator_ops palmas_ops_extreg = {
 	.is_enabled		= regulator_is_enabled_regmap,
 	.enable			= regulator_enable_regmap,
 	.disable		= regulator_disable_regmap,
 };
 
+static struct regulator_ops palmas_ops_ext_control_extreg = {
+};
+
+static int palmas_regulator_config_external(struct palmas *palmas, int id,
+		struct palmas_reg_init *reg_init)
+{
+	int sleep_id = palmas_regs_info[id].sleep_id;
+	int ret;
+
+	ret = palmas_ext_control_req_config(palmas, sleep_id,
+					reg_init->roof_floor, true);
+	if (ret < 0)
+		dev_err(palmas->dev,
+			"Ext control config for regulator %d failed %d\n",
+			id, ret);
+	return ret;
+}
+
 /*
  * setup the hardware based sleep configuration of the SMPS/LDO regulators
  * from the platform data. This is different to the software based control
@@ -583,7 +647,22 @@ static int palmas_smps_init(struct palmas *palmas, int id,
 			return ret;
 	}
 
+	if (reg_init->roof_floor && (id != PALMAS_REG_SMPS10_OUT1) &&
+			(id != PALMAS_REG_SMPS10_OUT2)) {
+		/* Enable externally controlled regulator */
+		addr = palmas_regs_info[id].ctrl_addr;
+		ret = palmas_smps_read(palmas, addr, &reg);
+		if (ret < 0)
+			return ret;
 
+		if (!(reg & PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK)) {
+			reg |= SMPS_CTRL_MODE_ON;
+			ret = palmas_smps_write(palmas, addr, reg);
+			if (ret < 0)
+				return ret;
+		}
+		return palmas_regulator_config_external(palmas, id, reg_init);
+	}
 	return 0;
 }
 
@@ -614,6 +693,20 @@ static int palmas_ldo_init(struct palmas *palmas, int id,
 	if (ret)
 		return ret;
 
+	if (reg_init->roof_floor) {
+		/* Enable externally controlled regulator */
+		addr = palmas_regs_info[id].ctrl_addr;
+		ret = palmas_update_bits(palmas, PALMAS_LDO_BASE,
+				addr, PALMAS_LDO1_CTRL_MODE_ACTIVE,
+				PALMAS_LDO1_CTRL_MODE_ACTIVE);
+		if (ret < 0) {
+			dev_err(palmas->dev,
+				"LDO Register 0x%02x update failed %d\n",
+				addr, ret);
+			return ret;
+		}
+		return palmas_regulator_config_external(palmas, id, reg_init);
+	}
 	return 0;
 }
 
@@ -636,6 +729,21 @@ static int palmas_extreg_init(struct palmas *palmas, int id,
 			addr, ret);
 		return ret;
 	}
+
+	if (reg_init->roof_floor) {
+		/* Enable externally controlled regulator */
+		addr = palmas_regs_info[id].ctrl_addr;
+		ret = palmas_update_bits(palmas, PALMAS_RESOURCE_BASE,
+				addr, PALMAS_REGEN1_CTRL_MODE_ACTIVE,
+				PALMAS_REGEN1_CTRL_MODE_ACTIVE);
+		if (ret < 0) {
+			dev_err(palmas->dev,
+				"Resource Register 0x%02x update failed %d\n",
+				addr, ret);
+			return ret;
+		}
+		return palmas_regulator_config_external(palmas, id, reg_init);
+	}
 	return 0;
 }
 
@@ -746,9 +854,35 @@ static void palmas_dt_to_pdata(struct device *dev,
 			of_property_read_bool(palmas_matches[idx].of_node,
 					     "ti,warm-reset");
 
-		pdata->reg_init[idx]->roof_floor =
-			of_property_read_bool(palmas_matches[idx].of_node,
-					      "ti,roof-floor");
+		ret = of_property_read_u32(palmas_matches[idx].of_node,
+					      "ti,roof-floor", &prop);
+		/* EINVAL: Property not found */
+		if (ret != -EINVAL) {
+			int econtrol;
+
+			/* use default value, when no value is specified */
+			econtrol = PALMAS_EXT_CONTROL_NSLEEP;
+			if (!ret) {
+				switch (prop) {
+				case 1:
+					econtrol = PALMAS_EXT_CONTROL_ENABLE1;
+					break;
+				case 2:
+					econtrol = PALMAS_EXT_CONTROL_ENABLE2;
+					break;
+				case 3:
+					econtrol = PALMAS_EXT_CONTROL_NSLEEP;
+					break;
+				default:
+					WARN_ON(1);
+					dev_warn(dev,
+					"%s: Invalid roof-floor option: %u\n",
+					     palmas_matches[idx].name, prop);
+					break;
+				}
+			}
+			pdata->reg_init[idx]->roof_floor = econtrol;
+		}
 
 		ret = of_property_read_u32(palmas_matches[idx].of_node,
 				"ti,mode-sleep", &prop);
@@ -875,6 +1009,8 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 			ret = palmas_smps_init(palmas, id, reg_init);
 			if (ret)
 				goto err_unregister_regulator;
+		} else {
+			reg_init = NULL;
 		}
 
 		/* Register the regulators */
@@ -919,7 +1055,11 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 			if (reg & PALMAS_SMPS12_VOLTAGE_RANGE)
 				pmic->range[id] = 1;
 
-			pmic->desc[id].ops = &palmas_ops_smps;
+			if (reg_init && reg_init->roof_floor)
+				pmic->desc[id].ops =
+						&palmas_ops_ext_control_smps;
+			else
+				pmic->desc[id].ops = &palmas_ops_smps;
 			pmic->desc[id].n_voltages = PALMAS_SMPS_NUM_VOLTAGES;
 			pmic->desc[id].vsel_reg =
 					PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
@@ -962,6 +1102,10 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 
 	/* Start this loop from the id left from previous loop */
 	for (; id < PALMAS_NUM_REGS; id++) {
+		if (pdata && pdata->reg_init[id])
+			reg_init = pdata->reg_init[id];
+		else
+			reg_init = NULL;
 
 		/* Miss out regulators which are not available due
 		 * to alternate functions.
@@ -975,7 +1119,11 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 
 		if (id < PALMAS_REG_REGEN1) {
 			pmic->desc[id].n_voltages = PALMAS_LDO_NUM_VOLTAGES;
-			pmic->desc[id].ops = &palmas_ops_ldo;
+			if (reg_init && reg_init->roof_floor)
+				pmic->desc[id].ops =
+					&palmas_ops_ext_control_ldo;
+			else
+				pmic->desc[id].ops = &palmas_ops_ldo;
 			pmic->desc[id].min_uV = 900000;
 			pmic->desc[id].uV_step = 50000;
 			pmic->desc[id].linear_min_sel = 1;
@@ -999,7 +1147,11 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 			}
 		} else {
 			pmic->desc[id].n_voltages = 1;
-			pmic->desc[id].ops = &palmas_ops_extreg;
+			if (reg_init && reg_init->roof_floor)
+				pmic->desc[id].ops =
+					&palmas_ops_ext_control_extreg;
+			else
+				pmic->desc[id].ops = &palmas_ops_extreg;
 			pmic->desc[id].enable_reg =
 					PALMAS_BASE_TO_REG(PALMAS_RESOURCE_BASE,
 						palmas_regs_info[id].ctrl_addr);
-- 
cgit 


From 5957e444d2aa01705749190c32ae88fc4a029156 Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Tue, 10 Sep 2013 16:48:07 +0530
Subject: regulator: palmas: configure enable time for LDOs

As per datasheet (Referred TPS65913), the on-time for LDO is
500micro second. If LDO6 is in vibrator mode then the on-time
is 2000us.

Set the enable_time on regulator descriptor accordingly.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/palmas-regulator.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index 3c08e1b5b289..76ce09c6b594 100644
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -1127,6 +1127,7 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 			pmic->desc[id].min_uV = 900000;
 			pmic->desc[id].uV_step = 50000;
 			pmic->desc[id].linear_min_sel = 1;
+			pmic->desc[id].enable_time = 500;
 			pmic->desc[id].vsel_reg =
 					PALMAS_BASE_TO_REG(PALMAS_LDO_BASE,
 						palmas_regs_info[id].vsel_addr);
@@ -1145,6 +1146,11 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 				pmic->desc[id].min_uV = 450000;
 				pmic->desc[id].uV_step = 25000;
 			}
+
+			/* LOD6 in vibrator mode will have enable time 2000us */
+			if (pdata && pdata->ldo6_vibrator &&
+				(id == PALMAS_REG_LDO6))
+				pmic->desc[id].enable_time = 2000;
 		} else {
 			pmic->desc[id].n_voltages = 1;
 			if (reg_init && reg_init->roof_floor)
-- 
cgit 


From 175ee39e8f4053f95e1948afd75c74552b3a175c Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 31 Aug 2013 20:31:11 +0200
Subject: ASoC: Remove support for reg_access_defaults

No users of reg_access_defaults are left and new drivers are going to use regmap
for this, so support for it can be removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/sound/soc.h   | 24 --------------------
 sound/soc/soc-cache.c | 63 ---------------------------------------------------
 sound/soc/soc-core.c  |  9 --------
 3 files changed, 96 deletions(-)

diff --git a/include/sound/soc.h b/include/sound/soc.h
index d22cb0a06feb..447278a3b3e6 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -403,12 +403,6 @@ int snd_soc_cache_write(struct snd_soc_codec *codec,
 			unsigned int reg, unsigned int value);
 int snd_soc_cache_read(struct snd_soc_codec *codec,
 		       unsigned int reg, unsigned int *value);
-int snd_soc_default_volatile_register(struct snd_soc_codec *codec,
-				      unsigned int reg);
-int snd_soc_default_readable_register(struct snd_soc_codec *codec,
-				      unsigned int reg);
-int snd_soc_default_writable_register(struct snd_soc_codec *codec,
-				      unsigned int reg);
 int snd_soc_platform_read(struct snd_soc_platform *platform,
 					unsigned int reg);
 int snd_soc_platform_write(struct snd_soc_platform *platform,
@@ -541,22 +535,6 @@ int snd_soc_get_strobe(struct snd_kcontrol *kcontrol,
 int snd_soc_put_strobe(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_value *ucontrol);
 
-/**
- * struct snd_soc_reg_access - Describes whether a given register is
- * readable, writable or volatile.
- *
- * @reg: the register number
- * @read: whether this register is readable
- * @write: whether this register is writable
- * @vol: whether this register is volatile
- */
-struct snd_soc_reg_access {
-	u16 reg;
-	u16 read;
-	u16 write;
-	u16 vol;
-};
-
 /**
  * struct snd_soc_jack_pin - Describes a pin to update based on jack detection
  *
@@ -760,8 +738,6 @@ struct snd_soc_codec_driver {
 	short reg_cache_step;
 	short reg_word_size;
 	const void *reg_cache_default;
-	short reg_access_size;
-	const struct snd_soc_reg_access *reg_access_default;
 	enum snd_soc_compress_type compress_type;
 
 	/* codec bias level */
diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c
index e72f55428f0b..eaa898f8d808 100644
--- a/sound/soc/soc-cache.c
+++ b/sound/soc/soc-cache.c
@@ -275,66 +275,3 @@ int snd_soc_cache_sync(struct snd_soc_codec *codec)
 	return ret;
 }
 EXPORT_SYMBOL_GPL(snd_soc_cache_sync);
-
-static int snd_soc_get_reg_access_index(struct snd_soc_codec *codec,
-					unsigned int reg)
-{
-	const struct snd_soc_codec_driver *codec_drv;
-	unsigned int min, max, index;
-
-	codec_drv = codec->driver;
-	min = 0;
-	max = codec_drv->reg_access_size - 1;
-	do {
-		index = (min + max) / 2;
-		if (codec_drv->reg_access_default[index].reg == reg)
-			return index;
-		if (codec_drv->reg_access_default[index].reg < reg)
-			min = index + 1;
-		else
-			max = index;
-	} while (min <= max);
-	return -1;
-}
-
-int snd_soc_default_volatile_register(struct snd_soc_codec *codec,
-				      unsigned int reg)
-{
-	int index;
-
-	if (reg >= codec->driver->reg_cache_size)
-		return 1;
-	index = snd_soc_get_reg_access_index(codec, reg);
-	if (index < 0)
-		return 0;
-	return codec->driver->reg_access_default[index].vol;
-}
-EXPORT_SYMBOL_GPL(snd_soc_default_volatile_register);
-
-int snd_soc_default_readable_register(struct snd_soc_codec *codec,
-				      unsigned int reg)
-{
-	int index;
-
-	if (reg >= codec->driver->reg_cache_size)
-		return 1;
-	index = snd_soc_get_reg_access_index(codec, reg);
-	if (index < 0)
-		return 0;
-	return codec->driver->reg_access_default[index].read;
-}
-EXPORT_SYMBOL_GPL(snd_soc_default_readable_register);
-
-int snd_soc_default_writable_register(struct snd_soc_codec *codec,
-				      unsigned int reg)
-{
-	int index;
-
-	if (reg >= codec->driver->reg_cache_size)
-		return 1;
-	index = snd_soc_get_reg_access_index(codec, reg);
-	if (index < 0)
-		return 0;
-	return codec->driver->reg_access_default[index].write;
-}
-EXPORT_SYMBOL_GPL(snd_soc_default_writable_register);
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 4d0561312f3b..f5ec301603d8 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -4224,15 +4224,6 @@ int snd_soc_register_codec(struct device *dev,
 		}
 	}
 
-	if (codec_drv->reg_access_size && codec_drv->reg_access_default) {
-		if (!codec->volatile_register)
-			codec->volatile_register = snd_soc_default_volatile_register;
-		if (!codec->readable_register)
-			codec->readable_register = snd_soc_default_readable_register;
-		if (!codec->writable_register)
-			codec->writable_register = snd_soc_default_writable_register;
-	}
-
 	for (i = 0; i < num_dai; i++) {
 		fixup_codec_formats(&dai_drv[i].playback);
 		fixup_codec_formats(&dai_drv[i].capture);
-- 
cgit 


From 2a1212a8342c469cee240cf69fe3001b898cda8e Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 31 Aug 2013 20:31:12 +0200
Subject: ASoC: Remove snd_soc_bulk_write_raw()

No users of snd_soc_bulk_write_raw() are left and new drivers are going to use
regmap directly for this, so the function can be removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/sound/soc.h  |  3 ---
 sound/soc/soc-core.c |  7 -------
 sound/soc/soc-io.c   | 26 --------------------------
 3 files changed, 36 deletions(-)

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 447278a3b3e6..3f7de6f992c0 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -686,7 +686,6 @@ struct snd_soc_codec {
 	unsigned int (*hw_read)(struct snd_soc_codec *, unsigned int);
 	unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 	int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
-	int (*bulk_write_raw)(struct snd_soc_codec *, unsigned int, const void *, size_t);
 	void *reg_cache;
 	const void *reg_def_copy;
 	const struct snd_soc_cache_ops *cache_ops;
@@ -1097,8 +1096,6 @@ struct soc_enum {
 unsigned int snd_soc_read(struct snd_soc_codec *codec, unsigned int reg);
 unsigned int snd_soc_write(struct snd_soc_codec *codec,
 			   unsigned int reg, unsigned int val);
-unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec,
-				    unsigned int reg, const void *data, size_t len);
 
 /* device driver data */
 
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index f5ec301603d8..4ce02e6777e5 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -2298,13 +2298,6 @@ unsigned int snd_soc_write(struct snd_soc_codec *codec,
 }
 EXPORT_SYMBOL_GPL(snd_soc_write);
 
-unsigned int snd_soc_bulk_write_raw(struct snd_soc_codec *codec,
-				    unsigned int reg, const void *data, size_t len)
-{
-	return codec->bulk_write_raw(codec, reg, data, len);
-}
-EXPORT_SYMBOL_GPL(snd_soc_bulk_write_raw);
-
 /**
  * snd_soc_update_bits - update codec register bits
  * @codec: audio codec
diff --git a/sound/soc/soc-io.c b/sound/soc/soc-io.c
index 122c0c18b9dd..4f11d23f2062 100644
--- a/sound/soc/soc-io.c
+++ b/sound/soc/soc-io.c
@@ -65,31 +65,6 @@ static unsigned int hw_read(struct snd_soc_codec *codec, unsigned int reg)
 	return val;
 }
 
-/* Primitive bulk write support for soc-cache.  The data pointed to by
- * `data' needs to already be in the form the hardware expects.  Any
- * data written through this function will not go through the cache as
- * it only handles writing to volatile or out of bounds registers.
- *
- * This is currently only supported for devices using the regmap API
- * wrappers.
- */
-static int snd_soc_hw_bulk_write_raw(struct snd_soc_codec *codec,
-				     unsigned int reg,
-				     const void *data, size_t len)
-{
-	/* To ensure that we don't get out of sync with the cache, check
-	 * whether the base register is volatile or if we've directly asked
-	 * to bypass the cache.  Out of bounds registers are considered
-	 * volatile.
-	 */
-	if (!codec->cache_bypass
-	    && !snd_soc_codec_volatile_register(codec, reg)
-	    && reg < codec->driver->reg_cache_size)
-		return -EINVAL;
-
-	return regmap_raw_write(codec->control_data, reg, data, len);
-}
-
 /**
  * snd_soc_codec_set_cache_io: Set up standard I/O functions.
  *
@@ -119,7 +94,6 @@ int snd_soc_codec_set_cache_io(struct snd_soc_codec *codec,
 	memset(&config, 0, sizeof(config));
 	codec->write = hw_write;
 	codec->read = hw_read;
-	codec->bulk_write_raw = snd_soc_hw_bulk_write_raw;
 
 	config.reg_bits = addr_bits;
 	config.val_bits = data_bits;
-- 
cgit 


From b012aa619e50d22df0835b64a5dcebc221fb8053 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 31 Aug 2013 20:31:13 +0200
Subject: ASoC: Remove reg_def_copy

reg_def_copy was introduced in commit 3335ddca ("ASoC: soc-cache: Use
reg_def_copy instead of reg_cache_default") to keep a copy of the register
defaults around in case the register defaults where placed in the __devinitdata
section. With the __devinitdata section gone we effectivly keep the same data
around twice. This patch removes reg_def_copy and uses reg_cache_default
directly instead.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/sound/soc.h   |  1 -
 sound/soc/soc-cache.c | 10 ++++++----
 sound/soc/soc-core.c  | 15 ---------------
 3 files changed, 6 insertions(+), 20 deletions(-)

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 3f7de6f992c0..62f320f56644 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -687,7 +687,6 @@ struct snd_soc_codec {
 	unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 	int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 	void *reg_cache;
-	const void *reg_def_copy;
 	const struct snd_soc_cache_ops *cache_ops;
 	struct mutex cache_rw_mutex;
 	int val_bytes;
diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c
index eaa898f8d808..a7f83c0c62ce 100644
--- a/sound/soc/soc-cache.c
+++ b/sound/soc/soc-cache.c
@@ -78,8 +78,8 @@ static int snd_soc_flat_cache_sync(struct snd_soc_codec *codec)
 		ret = snd_soc_cache_read(codec, i, &val);
 		if (ret)
 			return ret;
-		if (codec->reg_def_copy)
-			if (snd_soc_get_cache_val(codec->reg_def_copy,
+		if (codec_drv->reg_cache_default)
+			if (snd_soc_get_cache_val(codec_drv->reg_cache_default,
 						  i, codec_drv->reg_word_size) == val)
 				continue;
 
@@ -121,8 +121,10 @@ static int snd_soc_flat_cache_exit(struct snd_soc_codec *codec)
 
 static int snd_soc_flat_cache_init(struct snd_soc_codec *codec)
 {
-	if (codec->reg_def_copy)
-		codec->reg_cache = kmemdup(codec->reg_def_copy,
+	const struct snd_soc_codec_driver *codec_drv = codec->driver;
+
+	if (codec_drv->reg_cache_default)
+		codec->reg_cache = kmemdup(codec_drv->reg_cache_default,
 					   codec->reg_size, GFP_KERNEL);
 	else
 		codec->reg_cache = kzalloc(codec->reg_size, GFP_KERNEL);
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 4ce02e6777e5..bbe833ab657e 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -4201,20 +4201,6 @@ int snd_soc_register_codec(struct device *dev,
 	if (codec_drv->reg_cache_size && codec_drv->reg_word_size) {
 		reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size;
 		codec->reg_size = reg_size;
-		/* it is necessary to make a copy of the default register cache
-		 * because in the case of using a compression type that requires
-		 * the default register cache to be marked as the
-		 * kernel might have freed the array by the time we initialize
-		 * the cache.
-		 */
-		if (codec_drv->reg_cache_default) {
-			codec->reg_def_copy = kmemdup(codec_drv->reg_cache_default,
-						      reg_size, GFP_KERNEL);
-			if (!codec->reg_def_copy) {
-				ret = -ENOMEM;
-				goto fail_codec_name;
-			}
-		}
 	}
 
 	for (i = 0; i < num_dai; i++) {
@@ -4273,7 +4259,6 @@ found:
 	dev_dbg(codec->dev, "ASoC: Unregistered codec '%s'\n", codec->name);
 
 	snd_soc_cache_exit(codec);
-	kfree(codec->reg_def_copy);
 	kfree(codec->name);
 	kfree(codec);
 }
-- 
cgit 


From a94ed23436fb28bdcdd66e7fcf68ca5f7967e456 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 31 Aug 2013 20:31:14 +0200
Subject: ASoC: Remove 'reg_size' field from snd_soc_codec struct

The reg_size field is calculated in snd_soc_register_codec() and then used
exactly once in snd_soc_flat_cache_init(). Since it is calculated based on other
fields from the codec struct just move the calculation to
snd_soc_flat_cache_init() and remove the 'reg_size' field from the codec struct.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/sound/soc.h   | 1 -
 sound/soc/soc-cache.c | 7 +++++--
 sound/soc/soc-core.c  | 7 -------
 3 files changed, 5 insertions(+), 10 deletions(-)

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 62f320f56644..577212629d0f 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -662,7 +662,6 @@ struct snd_soc_codec {
 	struct list_head card_list;
 	int num_dai;
 	enum snd_soc_compress_type compress_type;
-	size_t reg_size;	/* reg_cache_size * reg_word_size */
 	int (*volatile_register)(struct snd_soc_codec *, unsigned int);
 	int (*readable_register)(struct snd_soc_codec *, unsigned int);
 	int (*writable_register)(struct snd_soc_codec *, unsigned int);
diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c
index a7f83c0c62ce..9542c83d2295 100644
--- a/sound/soc/soc-cache.c
+++ b/sound/soc/soc-cache.c
@@ -122,12 +122,15 @@ static int snd_soc_flat_cache_exit(struct snd_soc_codec *codec)
 static int snd_soc_flat_cache_init(struct snd_soc_codec *codec)
 {
 	const struct snd_soc_codec_driver *codec_drv = codec->driver;
+	size_t reg_size;
+
+	reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size;
 
 	if (codec_drv->reg_cache_default)
 		codec->reg_cache = kmemdup(codec_drv->reg_cache_default,
-					   codec->reg_size, GFP_KERNEL);
+					   reg_size, GFP_KERNEL);
 	else
-		codec->reg_cache = kzalloc(codec->reg_size, GFP_KERNEL);
+		codec->reg_cache = kzalloc(reg_size, GFP_KERNEL);
 	if (!codec->reg_cache)
 		return -ENOMEM;
 
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index bbe833ab657e..af9648426f4f 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -4159,7 +4159,6 @@ int snd_soc_register_codec(struct device *dev,
 			   struct snd_soc_dai_driver *dai_drv,
 			   int num_dai)
 {
-	size_t reg_size;
 	struct snd_soc_codec *codec;
 	int ret, i;
 
@@ -4197,12 +4196,6 @@ int snd_soc_register_codec(struct device *dev,
 	codec->num_dai = num_dai;
 	mutex_init(&codec->mutex);
 
-	/* allocate CODEC register cache */
-	if (codec_drv->reg_cache_size && codec_drv->reg_word_size) {
-		reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size;
-		codec->reg_size = reg_size;
-	}
-
 	for (i = 0; i < num_dai; i++) {
 		fixup_codec_formats(&dai_drv[i].playback);
 		fixup_codec_formats(&dai_drv[i].capture);
-- 
cgit 


From f90fb3f778042b0b9f9aa1fd48cb76047a25eac0 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 31 Aug 2013 20:31:15 +0200
Subject: ASoC: Remove infrastructure for supporting multiple cache types

The only cache type left is the flat cache and new other cache types won't be
added since new drivers are supposed to use regmap directly for IO and caching.
This patch removes the snd_soc_cache_ops indirection that was added to support
multiple cache types and modifies the code to always use the flat cache
directly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/sound/soc.h   |  27 -------
 sound/soc/soc-cache.c | 195 +++++++++++++++-----------------------------------
 sound/soc/soc-core.c  |  27 +------
 3 files changed, 58 insertions(+), 191 deletions(-)

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 577212629d0f..a72af6327987 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -330,7 +330,6 @@ struct soc_enum;
 struct snd_soc_jack;
 struct snd_soc_jack_zone;
 struct snd_soc_jack_pin;
-struct snd_soc_cache_ops;
 #include <sound/soc-dapm.h>
 #include <sound/soc-dpcm.h>
 
@@ -348,10 +347,6 @@ enum snd_soc_control_type {
 	SND_SOC_REGMAP,
 };
 
-enum snd_soc_compress_type {
-	SND_SOC_FLAT_COMPRESSION = 1,
-};
-
 enum snd_soc_pcm_subclass {
 	SND_SOC_PCM_CLASS_PCM	= 0,
 	SND_SOC_PCM_CLASS_BE	= 1,
@@ -635,19 +630,6 @@ struct snd_soc_compr_ops {
 	int (*trigger)(struct snd_compr_stream *);
 };
 
-/* SoC cache ops */
-struct snd_soc_cache_ops {
-	const char *name;
-	enum snd_soc_compress_type id;
-	int (*init)(struct snd_soc_codec *codec);
-	int (*exit)(struct snd_soc_codec *codec);
-	int (*read)(struct snd_soc_codec *codec, unsigned int reg,
-		unsigned int *value);
-	int (*write)(struct snd_soc_codec *codec, unsigned int reg,
-		unsigned int value);
-	int (*sync)(struct snd_soc_codec *codec);
-};
-
 /* SoC Audio Codec device */
 struct snd_soc_codec {
 	const char *name;
@@ -661,7 +643,6 @@ struct snd_soc_codec {
 	struct list_head list;
 	struct list_head card_list;
 	int num_dai;
-	enum snd_soc_compress_type compress_type;
 	int (*volatile_register)(struct snd_soc_codec *, unsigned int);
 	int (*readable_register)(struct snd_soc_codec *, unsigned int);
 	int (*writable_register)(struct snd_soc_codec *, unsigned int);
@@ -686,7 +667,6 @@ struct snd_soc_codec {
 	unsigned int (*read)(struct snd_soc_codec *, unsigned int);
 	int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
 	void *reg_cache;
-	const struct snd_soc_cache_ops *cache_ops;
 	struct mutex cache_rw_mutex;
 	int val_bytes;
 
@@ -735,7 +715,6 @@ struct snd_soc_codec_driver {
 	short reg_cache_step;
 	short reg_word_size;
 	const void *reg_cache_default;
-	enum snd_soc_compress_type compress_type;
 
 	/* codec bias level */
 	int (*set_bias_level)(struct snd_soc_codec *,
@@ -917,12 +896,6 @@ struct snd_soc_codec_conf {
 	 * associated per device
 	 */
 	const char *name_prefix;
-
-	/*
-	 * set this to the desired compression type if you want to
-	 * override the one supplied in codec->driver->compress_type
-	 */
-	enum snd_soc_compress_type compress_type;
 };
 
 struct snd_soc_aux_dev {
diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c
index 9542c83d2295..1b6663f45b34 100644
--- a/sound/soc/soc-cache.c
+++ b/sound/soc/soc-cache.c
@@ -11,12 +11,9 @@
  *  option) any later version.
  */
 
-#include <linux/i2c.h>
-#include <linux/spi/spi.h>
 #include <sound/soc.h>
-#include <linux/bitmap.h>
-#include <linux/rbtree.h>
 #include <linux/export.h>
+#include <linux/slab.h>
 
 #include <trace/events/asoc.h>
 
@@ -66,66 +63,18 @@ static unsigned int snd_soc_get_cache_val(const void *base, unsigned int idx,
 	return -1;
 }
 
-static int snd_soc_flat_cache_sync(struct snd_soc_codec *codec)
-{
-	int i;
-	int ret;
-	const struct snd_soc_codec_driver *codec_drv;
-	unsigned int val;
-
-	codec_drv = codec->driver;
-	for (i = 0; i < codec_drv->reg_cache_size; ++i) {
-		ret = snd_soc_cache_read(codec, i, &val);
-		if (ret)
-			return ret;
-		if (codec_drv->reg_cache_default)
-			if (snd_soc_get_cache_val(codec_drv->reg_cache_default,
-						  i, codec_drv->reg_word_size) == val)
-				continue;
-
-		WARN_ON(!snd_soc_codec_writable_register(codec, i));
-
-		ret = snd_soc_write(codec, i, val);
-		if (ret)
-			return ret;
-		dev_dbg(codec->dev, "ASoC: Synced register %#x, value = %#x\n",
-			i, val);
-	}
-	return 0;
-}
-
-static int snd_soc_flat_cache_write(struct snd_soc_codec *codec,
-				    unsigned int reg, unsigned int value)
-{
-	snd_soc_set_cache_val(codec->reg_cache, reg, value,
-			      codec->driver->reg_word_size);
-	return 0;
-}
-
-static int snd_soc_flat_cache_read(struct snd_soc_codec *codec,
-				   unsigned int reg, unsigned int *value)
-{
-	*value = snd_soc_get_cache_val(codec->reg_cache, reg,
-				       codec->driver->reg_word_size);
-	return 0;
-}
-
-static int snd_soc_flat_cache_exit(struct snd_soc_codec *codec)
-{
-	if (!codec->reg_cache)
-		return 0;
-	kfree(codec->reg_cache);
-	codec->reg_cache = NULL;
-	return 0;
-}
-
-static int snd_soc_flat_cache_init(struct snd_soc_codec *codec)
+int snd_soc_cache_init(struct snd_soc_codec *codec)
 {
 	const struct snd_soc_codec_driver *codec_drv = codec->driver;
 	size_t reg_size;
 
 	reg_size = codec_drv->reg_cache_size * codec_drv->reg_word_size;
 
+	mutex_init(&codec->cache_rw_mutex);
+
+	dev_dbg(codec->dev, "ASoC: Initializing cache for %s codec\n",
+				codec->name);
+
 	if (codec_drv->reg_cache_default)
 		codec->reg_cache = kmemdup(codec_drv->reg_cache_default,
 					   reg_size, GFP_KERNEL);
@@ -137,60 +86,19 @@ static int snd_soc_flat_cache_init(struct snd_soc_codec *codec)
 	return 0;
 }
 
-/* an array of all supported compression types */
-static const struct snd_soc_cache_ops cache_types[] = {
-	/* Flat *must* be the first entry for fallback */
-	{
-		.id = SND_SOC_FLAT_COMPRESSION,
-		.name = "flat",
-		.init = snd_soc_flat_cache_init,
-		.exit = snd_soc_flat_cache_exit,
-		.read = snd_soc_flat_cache_read,
-		.write = snd_soc_flat_cache_write,
-		.sync = snd_soc_flat_cache_sync
-	},
-};
-
-int snd_soc_cache_init(struct snd_soc_codec *codec)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(cache_types); ++i)
-		if (cache_types[i].id == codec->compress_type)
-			break;
-
-	/* Fall back to flat compression */
-	if (i == ARRAY_SIZE(cache_types)) {
-		dev_warn(codec->dev, "ASoC: Could not match compress type: %d\n",
-			 codec->compress_type);
-		i = 0;
-	}
-
-	mutex_init(&codec->cache_rw_mutex);
-	codec->cache_ops = &cache_types[i];
-
-	if (codec->cache_ops->init) {
-		if (codec->cache_ops->name)
-			dev_dbg(codec->dev, "ASoC: Initializing %s cache for %s codec\n",
-				codec->cache_ops->name, codec->name);
-		return codec->cache_ops->init(codec);
-	}
-	return -ENOSYS;
-}
-
 /*
  * NOTE: keep in mind that this function might be called
  * multiple times.
  */
 int snd_soc_cache_exit(struct snd_soc_codec *codec)
 {
-	if (codec->cache_ops && codec->cache_ops->exit) {
-		if (codec->cache_ops->name)
-			dev_dbg(codec->dev, "ASoC: Destroying %s cache for %s codec\n",
-				codec->cache_ops->name, codec->name);
-		return codec->cache_ops->exit(codec);
-	}
-	return -ENOSYS;
+	dev_dbg(codec->dev, "ASoC: Destroying cache for %s codec\n",
+			codec->name);
+	if (!codec->reg_cache)
+		return 0;
+	kfree(codec->reg_cache);
+	codec->reg_cache = NULL;
+	return 0;
 }
 
 /**
@@ -203,18 +111,15 @@ int snd_soc_cache_exit(struct snd_soc_codec *codec)
 int snd_soc_cache_read(struct snd_soc_codec *codec,
 		       unsigned int reg, unsigned int *value)
 {
-	int ret;
+	if (!value)
+		return -EINVAL;
 
 	mutex_lock(&codec->cache_rw_mutex);
-
-	if (value && codec->cache_ops && codec->cache_ops->read) {
-		ret = codec->cache_ops->read(codec, reg, value);
-		mutex_unlock(&codec->cache_rw_mutex);
-		return ret;
-	}
-
+	*value = snd_soc_get_cache_val(codec->reg_cache, reg,
+				       codec->driver->reg_word_size);
 	mutex_unlock(&codec->cache_rw_mutex);
-	return -ENOSYS;
+
+	return 0;
 }
 EXPORT_SYMBOL_GPL(snd_soc_cache_read);
 
@@ -228,20 +133,42 @@ EXPORT_SYMBOL_GPL(snd_soc_cache_read);
 int snd_soc_cache_write(struct snd_soc_codec *codec,
 			unsigned int reg, unsigned int value)
 {
+	mutex_lock(&codec->cache_rw_mutex);
+	snd_soc_set_cache_val(codec->reg_cache, reg, value,
+			      codec->driver->reg_word_size);
+	mutex_unlock(&codec->cache_rw_mutex);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_cache_write);
+
+static int snd_soc_flat_cache_sync(struct snd_soc_codec *codec)
+{
+	int i;
 	int ret;
+	const struct snd_soc_codec_driver *codec_drv;
+	unsigned int val;
 
-	mutex_lock(&codec->cache_rw_mutex);
+	codec_drv = codec->driver;
+	for (i = 0; i < codec_drv->reg_cache_size; ++i) {
+		ret = snd_soc_cache_read(codec, i, &val);
+		if (ret)
+			return ret;
+		if (codec_drv->reg_cache_default)
+			if (snd_soc_get_cache_val(codec_drv->reg_cache_default,
+						  i, codec_drv->reg_word_size) == val)
+				continue;
 
-	if (codec->cache_ops && codec->cache_ops->write) {
-		ret = codec->cache_ops->write(codec, reg, value);
-		mutex_unlock(&codec->cache_rw_mutex);
-		return ret;
-	}
+		WARN_ON(!snd_soc_codec_writable_register(codec, i));
 
-	mutex_unlock(&codec->cache_rw_mutex);
-	return -ENOSYS;
+		ret = snd_soc_write(codec, i, val);
+		if (ret)
+			return ret;
+		dev_dbg(codec->dev, "ASoC: Synced register %#x, value = %#x\n",
+			i, val);
+	}
+	return 0;
 }
-EXPORT_SYMBOL_GPL(snd_soc_cache_write);
 
 /**
  * snd_soc_cache_sync: Sync the register cache with the hardware.
@@ -254,26 +181,16 @@ EXPORT_SYMBOL_GPL(snd_soc_cache_write);
  */
 int snd_soc_cache_sync(struct snd_soc_codec *codec)
 {
+	const char *name = "flat";
 	int ret;
-	const char *name;
 
-	if (!codec->cache_sync) {
+	if (!codec->cache_sync)
 		return 0;
-	}
-
-	if (!codec->cache_ops || !codec->cache_ops->sync)
-		return -ENOSYS;
-
-	if (codec->cache_ops->name)
-		name = codec->cache_ops->name;
-	else
-		name = "unknown";
 
-	if (codec->cache_ops->name)
-		dev_dbg(codec->dev, "ASoC: Syncing %s cache for %s codec\n",
-			codec->cache_ops->name, codec->name);
+	dev_dbg(codec->dev, "ASoC: Syncing cache for %s codec\n",
+		codec->name);
 	trace_snd_soc_cache_sync(codec, name, "start");
-	ret = codec->cache_ops->sync(codec);
+	ret = snd_soc_flat_cache_sync(codec);
 	if (!ret)
 		codec->cache_sync = 0;
 	trace_snd_soc_cache_sync(codec, name, "end");
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index af9648426f4f..16a3930c6375 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1590,17 +1590,13 @@ static void soc_remove_aux_dev(struct snd_soc_card *card, int num)
 		soc_remove_codec(codec);
 }
 
-static int snd_soc_init_codec_cache(struct snd_soc_codec *codec,
-				    enum snd_soc_compress_type compress_type)
+static int snd_soc_init_codec_cache(struct snd_soc_codec *codec)
 {
 	int ret;
 
 	if (codec->cache_init)
 		return 0;
 
-	/* override the compress_type if necessary */
-	if (compress_type && codec->compress_type != compress_type)
-		codec->compress_type = compress_type;
 	ret = snd_soc_cache_init(codec);
 	if (ret < 0) {
 		dev_err(codec->dev,
@@ -1615,8 +1611,6 @@ static int snd_soc_init_codec_cache(struct snd_soc_codec *codec,
 static int snd_soc_instantiate_card(struct snd_soc_card *card)
 {
 	struct snd_soc_codec *codec;
-	struct snd_soc_codec_conf *codec_conf;
-	enum snd_soc_compress_type compress_type;
 	struct snd_soc_dai_link *dai_link;
 	int ret, i, order, dai_fmt;
 
@@ -1640,19 +1634,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card)
 	list_for_each_entry(codec, &codec_list, list) {
 		if (codec->cache_init)
 			continue;
-		/* by default we don't override the compress_type */
-		compress_type = 0;
-		/* check to see if we need to override the compress_type */
-		for (i = 0; i < card->num_configs; ++i) {
-			codec_conf = &card->codec_conf[i];
-			if (!strcmp(codec->name, codec_conf->dev_name)) {
-				compress_type = codec_conf->compress_type;
-				if (compress_type && compress_type
-				    != codec->compress_type)
-					break;
-			}
-		}
-		ret = snd_soc_init_codec_cache(codec, compress_type);
+		ret = snd_soc_init_codec_cache(codec);
 		if (ret < 0)
 			goto base_error;
 	}
@@ -4175,11 +4157,6 @@ int snd_soc_register_codec(struct device *dev,
 		goto fail_codec;
 	}
 
-	if (codec_drv->compress_type)
-		codec->compress_type = codec_drv->compress_type;
-	else
-		codec->compress_type = SND_SOC_FLAT_COMPRESSION;
-
 	codec->write = codec_drv->write;
 	codec->read = codec_drv->read;
 	codec->volatile_register = codec_drv->volatile_register;
-- 
cgit 


From 56fb7421d23c63cf22ac885d2db2302cefc9e1f1 Mon Sep 17 00:00:00 2001
From: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Date: Fri, 13 Sep 2013 18:09:46 +0100
Subject: ASoC: trace: Make sure trace header doesnt depend on any headers

Fix build so that asoc trace event header doesn't depend on other headers.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/trace/events/asoc.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/trace/events/asoc.h b/include/trace/events/asoc.h
index 5fc2dcdd21cd..03996b2bb04f 100644
--- a/include/trace/events/asoc.h
+++ b/include/trace/events/asoc.h
@@ -14,6 +14,7 @@ struct snd_soc_codec;
 struct snd_soc_platform;
 struct snd_soc_card;
 struct snd_soc_dapm_widget;
+struct snd_soc_dapm_path;
 
 /*
  * Log register events
-- 
cgit 


From 7f05cc98bd9b10b9a0173f3f5d20c2223fdf7470 Mon Sep 17 00:00:00 2001
From: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Date: Fri, 13 Sep 2013 18:09:47 +0100
Subject: ASoC: core utils: Dont set DMA params for BE substreams

BE substreams dont require dummy DMA configs so dont set any.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/soc-utils.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sound/soc/soc-utils.c b/sound/soc/soc-utils.c
index 29b211e9c060..5e633659c1b3 100644
--- a/sound/soc/soc-utils.c
+++ b/sound/soc/soc-utils.c
@@ -75,7 +75,11 @@ static const struct snd_pcm_hardware dummy_dma_hardware = {
 
 static int dummy_dma_open(struct snd_pcm_substream *substream)
 {
-	snd_soc_set_runtime_hwparams(substream, &dummy_dma_hardware);
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+
+	/* BE's dont need dummy params */
+	if (!rtd->dai_link->no_pcm)
+		snd_soc_set_runtime_hwparams(substream, &dummy_dma_hardware);
 
 	return 0;
 }
-- 
cgit 


From 8ecb5344fd6409c500c9d5757c3a7130d3d7db5b Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 13:51:38 +0100
Subject: ASoC: cq93vc: Don't use control data for core driver data

The platform data is being used to obtain the core driver data for the
device (which is a bit of an abuse but not the issue at hand) so reference
it directly in order to support refactoring to use regmap.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/cq93vc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/cq93vc.c b/sound/soc/codecs/cq93vc.c
index 23316c887b19..e2c4c0a896e2 100644
--- a/sound/soc/codecs/cq93vc.c
+++ b/sound/soc/codecs/cq93vc.c
@@ -79,7 +79,7 @@ static int cq93vc_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 				 int clk_id, unsigned int freq, int dir)
 {
 	struct snd_soc_codec *codec = codec_dai->codec;
-	struct davinci_vc *davinci_vc = codec->control_data;
+	struct davinci_vc *davinci_vc = codec->dev->platform_data;
 
 	switch (freq) {
 	case 22579200:
-- 
cgit 


From a851a2bb2d746ccdec0c7cc6ed1c9774921e721e Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 13 Sep 2013 15:22:17 +0530
Subject: ASoC: fsl_ssi: Staticize local symbols

Local symbols used only in this file are made static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/fsl_ssi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index c6b743978d5e..4973be774956 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -748,7 +748,7 @@ static void fsl_ssi_ac97_init(void)
 	fsl_ssi_setup(fsl_ac97_data);
 }
 
-void fsl_ssi_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
+static void fsl_ssi_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
 		unsigned short val)
 {
 	struct ccsr_ssi *ssi = fsl_ac97_data->ssi;
@@ -770,7 +770,7 @@ void fsl_ssi_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
 	udelay(100);
 }
 
-unsigned short fsl_ssi_ac97_read(struct snd_ac97 *ac97,
+static unsigned short fsl_ssi_ac97_read(struct snd_ac97 *ac97,
 		unsigned short reg)
 {
 	struct ccsr_ssi *ssi = fsl_ac97_data->ssi;
-- 
cgit 


From b51600c01979ab1d1c4df17e8910696547ffb9a2 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Sat, 31 Aug 2013 13:43:36 +0100
Subject: ASoC: kirkwood-dma: remove IEC958_SUBFRAME formats

The Audio block does not support IEC958 subframes as formatted by
ALSA: they're very close, but not close enough.  The formats differ
by:

3  2   2   2   1   1
1  8   4   0   6   2   8   4   0
PCUVDDDDDDDDDDDDDDDD....AAAATTTT - IEC958 subframe
PCUV0000........DDDDDDDDDDDDDDDD - Audio block format

Where P = parity, C = channel status, U = user data, V = validity,
D = sample data, A = aux, T = preamble.  As can be seen, the
position of the sample is in a different position, and the audio
block does not have the aux or preamble bits.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/kirkwood/kirkwood-dma.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/sound/soc/kirkwood/kirkwood-dma.c b/sound/soc/kirkwood/kirkwood-dma.c
index b238434f92b0..0c85c4e1a1ae 100644
--- a/sound/soc/kirkwood/kirkwood-dma.c
+++ b/sound/soc/kirkwood/kirkwood-dma.c
@@ -29,9 +29,7 @@
 #define KIRKWOOD_FORMATS \
 	(SNDRV_PCM_FMTBIT_S16_LE | \
 	 SNDRV_PCM_FMTBIT_S24_LE | \
-	 SNDRV_PCM_FMTBIT_S32_LE | \
-	 SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE | \
-	 SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE)
+	 SNDRV_PCM_FMTBIT_S32_LE)
 
 static struct kirkwood_dma_data *kirkwood_priv(struct snd_pcm_substream *subs)
 {
-- 
cgit 


From 38f2b8cbfb1ef517af8af5a63bdff073b7b078fd Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 2 Sep 2013 17:56:18 -0300
Subject: ASoC: mxs: mxs-sgtl5000: Simplify probe function

mxs is a device tree only platform, which allows us to simplify a bit
mxs_sgtl5000_probe(), because there is no need to check whether device tree is
supported or not.

Remove mxs_sgtl5000_probe_dt() and place its content inside mxs_sgtl5000_probe()
for making the code simpler.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/mxs/mxs-sgtl5000.c | 20 +++-----------------
 1 file changed, 3 insertions(+), 17 deletions(-)

diff --git a/sound/soc/mxs/mxs-sgtl5000.c b/sound/soc/mxs/mxs-sgtl5000.c
index 4bb273786ff3..61822cc53bd3 100644
--- a/sound/soc/mxs/mxs-sgtl5000.c
+++ b/sound/soc/mxs/mxs-sgtl5000.c
@@ -122,14 +122,12 @@ static struct snd_soc_card mxs_sgtl5000 = {
 	.num_links	= ARRAY_SIZE(mxs_sgtl5000_dai),
 };
 
-static int mxs_sgtl5000_probe_dt(struct platform_device *pdev)
+static int mxs_sgtl5000_probe(struct platform_device *pdev)
 {
+	struct snd_soc_card *card = &mxs_sgtl5000;
+	int ret, i;
 	struct device_node *np = pdev->dev.of_node;
 	struct device_node *saif_np[2], *codec_np;
-	int i;
-
-	if (!np)
-		return 1; /* no device tree */
 
 	saif_np[0] = of_parse_phandle(np, "saif-controllers", 0);
 	saif_np[1] = of_parse_phandle(np, "saif-controllers", 1);
@@ -152,18 +150,6 @@ static int mxs_sgtl5000_probe_dt(struct platform_device *pdev)
 	of_node_put(saif_np[0]);
 	of_node_put(saif_np[1]);
 
-	return 0;
-}
-
-static int mxs_sgtl5000_probe(struct platform_device *pdev)
-{
-	struct snd_soc_card *card = &mxs_sgtl5000;
-	int ret;
-
-	ret = mxs_sgtl5000_probe_dt(pdev);
-	if (ret < 0)
-		return ret;
-
 	/*
 	 * Set an init clock(11.28Mhz) for sgtl5000 initialization(i2c r/w).
 	 * The Sgtl5000 sysclk is derived from saif0 mclk and it's range
-- 
cgit 


From 89d051300b845e1001a9d9e9ce94da4250c21613 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 13 Sep 2013 15:22:18 +0530
Subject: ASoC: rt5640: Staticize hp_amp_power_on

'hp_amp_power_on' is used only in this file. Make it static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/rt5640.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/rt5640.c b/sound/soc/codecs/rt5640.c
index c26a8f814b18..2f6bb161e64c 100644
--- a/sound/soc/codecs/rt5640.c
+++ b/sound/soc/codecs/rt5640.c
@@ -926,7 +926,7 @@ static int rt5640_set_dmic2_event(struct snd_soc_dapm_widget *w,
 	return 0;
 }
 
-void hp_amp_power_on(struct snd_soc_codec *codec)
+static void hp_amp_power_on(struct snd_soc_codec *codec)
 {
 	struct rt5640_priv *rt5640 = snd_soc_codec_get_drvdata(codec);
 
-- 
cgit 


From 9e9cb9b99615180b94d743f1d6ca0f82539c8754 Mon Sep 17 00:00:00 2001
From: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Date: Fri, 13 Sep 2013 17:57:35 +0100
Subject: ASoC: rt5640: Provide more useful hw_params error reasons.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/rt5640.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/rt5640.c b/sound/soc/codecs/rt5640.c
index 2f6bb161e64c..de40bd9f6ac2 100644
--- a/sound/soc/codecs/rt5640.c
+++ b/sound/soc/codecs/rt5640.c
@@ -1609,7 +1609,8 @@ static int rt5640_hw_params(struct snd_pcm_substream *substream,
 	rt5640->lrck[dai->id] = params_rate(params);
 	pre_div = get_clk_info(rt5640->sysclk, rt5640->lrck[dai->id]);
 	if (pre_div < 0) {
-		dev_err(codec->dev, "Unsupported clock setting\n");
+		dev_err(codec->dev, "Unsupported clock setting %d for DAI %d\n",
+			rt5640->lrck[dai->id], dai->id);
 		return -EINVAL;
 	}
 	frame_size = snd_soc_params_to_frame_size(params);
-- 
cgit 


From 02b80773de3732dae11c1cf0c1ce40378901bd0e Mon Sep 17 00:00:00 2001
From: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Date: Fri, 13 Sep 2013 17:57:36 +0100
Subject: ASoC: rt5640: Add ACPI probing support.

Allow the RT5640 to be probed as an ACPI I2C device.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/rt5640.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/sound/soc/codecs/rt5640.c b/sound/soc/codecs/rt5640.c
index de40bd9f6ac2..0bfb960e90f8 100644
--- a/sound/soc/codecs/rt5640.c
+++ b/sound/soc/codecs/rt5640.c
@@ -21,6 +21,7 @@
 #include <linux/of_gpio.h>
 #include <linux/platform_device.h>
 #include <linux/spi/spi.h>
+#include <linux/acpi.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -2081,6 +2082,12 @@ static const struct i2c_device_id rt5640_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, rt5640_i2c_id);
 
+static struct acpi_device_id rt5640_acpi_match[] = {
+	{ "INT33CA", 0 },
+	{ },
+};
+MODULE_DEVICE_TABLE(acpi, rt5640_acpi_match);
+
 static int rt5640_parse_dt(struct rt5640_priv *rt5640, struct device_node *np)
 {
 	rt5640->pdata.in1_diff = of_property_read_bool(np,
@@ -2200,6 +2207,7 @@ static struct i2c_driver rt5640_i2c_driver = {
 	.driver = {
 		.name = "rt5640",
 		.owner = THIS_MODULE,
+		.acpi_match_table = ACPI_PTR(rt5640_acpi_match),
 	},
 	.probe = rt5640_i2c_probe,
 	.remove   = rt5640_i2c_remove,
-- 
cgit 


From 37c83edf9afd3d7b39ace9113a166c03b7a2820f Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 13:17:08 +0100
Subject: ASoC: wm8400: Use supplies to manage input power

Rather than using a fake register to manage input power create some supply
widgets and use those.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm8400.c | 73 ++++++++++++-----------------------------------
 1 file changed, 18 insertions(+), 55 deletions(-)

diff --git a/sound/soc/codecs/wm8400.c b/sound/soc/codecs/wm8400.c
index d2a092850283..95c33d169952 100644
--- a/sound/soc/codecs/wm8400.c
+++ b/sound/soc/codecs/wm8400.c
@@ -32,13 +32,6 @@
 
 #include "wm8400.h"
 
-/* Fake register for internal state */
-#define WM8400_INTDRIVBITS      (WM8400_REGISTER_COUNT + 1)
-#define WM8400_INMIXL_PWR			0
-#define WM8400_AINLMUX_PWR			1
-#define WM8400_INMIXR_PWR			2
-#define WM8400_AINRMUX_PWR			3
-
 static struct regulator_bulk_data power[] = {
 	{
 		.supply = "I2S1VDD",
@@ -79,10 +72,7 @@ static inline unsigned int wm8400_read(struct snd_soc_codec *codec,
 {
 	struct wm8400_priv *wm8400 = snd_soc_codec_get_drvdata(codec);
 
-	if (reg == WM8400_INTDRIVBITS)
-		return wm8400->fake_register;
-	else
-		return wm8400_reg_read(wm8400->wm8400, reg);
+	return wm8400_reg_read(wm8400->wm8400, reg);
 }
 
 /*
@@ -93,11 +83,7 @@ static int wm8400_write(struct snd_soc_codec *codec, unsigned int reg,
 {
 	struct wm8400_priv *wm8400 = snd_soc_codec_get_drvdata(codec);
 
-	if (reg == WM8400_INTDRIVBITS) {
-		wm8400->fake_register = value;
-		return 0;
-	} else
-		return wm8400_set_bits(wm8400->wm8400, reg, 0xffff, value);
+	return wm8400_set_bits(wm8400->wm8400, reg, 0xffff, value);
 }
 
 static void wm8400_codec_reset(struct snd_soc_codec *codec)
@@ -352,32 +338,6 @@ SOC_SINGLE("RIN34 Mute Switch", WM8400_RIGHT_LINE_INPUT_3_4_VOLUME,
  * _DAPM_ Controls
  */
 
-static int inmixer_event (struct snd_soc_dapm_widget *w,
-	struct snd_kcontrol *kcontrol, int event)
-{
-	u16 reg, fakepower;
-
-	reg = snd_soc_read(w->codec, WM8400_POWER_MANAGEMENT_2);
-	fakepower = snd_soc_read(w->codec, WM8400_INTDRIVBITS);
-
-	if (fakepower & ((1 << WM8400_INMIXL_PWR) |
-		(1 << WM8400_AINLMUX_PWR))) {
-		reg |= WM8400_AINL_ENA;
-	} else {
-		reg &= ~WM8400_AINL_ENA;
-	}
-
-	if (fakepower & ((1 << WM8400_INMIXR_PWR) |
-		(1 << WM8400_AINRMUX_PWR))) {
-		reg |= WM8400_AINR_ENA;
-	} else {
-		reg &= ~WM8400_AINR_ENA;
-	}
-	snd_soc_write(w->codec, WM8400_POWER_MANAGEMENT_2, reg);
-
-	return 0;
-}
-
 static int outmixer_event (struct snd_soc_dapm_widget *w,
 	struct snd_kcontrol * kcontrol, int event)
 {
@@ -658,27 +618,26 @@ SND_SOC_DAPM_MIXER("RIN34 PGA", WM8400_POWER_MANAGEMENT_2,
 		   0, &wm8400_dapm_rin34_pga_controls[0],
 		   ARRAY_SIZE(wm8400_dapm_rin34_pga_controls)),
 
+SND_SOC_DAPM_SUPPLY("INL", WM8400_POWER_MANAGEMENT_2, WM8400_AINL_ENA_SHIFT,
+		    0, NULL, 0),
+SND_SOC_DAPM_SUPPLY("INR", WM8400_POWER_MANAGEMENT_2, WM8400_AINR_ENA_SHIFT,
+		    0, NULL, 0),
+
 /* INMIXL */
-SND_SOC_DAPM_MIXER_E("INMIXL", WM8400_INTDRIVBITS, WM8400_INMIXL_PWR, 0,
+SND_SOC_DAPM_MIXER("INMIXL", SND_SOC_NOPM, 0, 0,
 	&wm8400_dapm_inmixl_controls[0],
-	ARRAY_SIZE(wm8400_dapm_inmixl_controls),
-	inmixer_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
+	ARRAY_SIZE(wm8400_dapm_inmixl_controls)),
 
 /* AINLMUX */
-SND_SOC_DAPM_MUX_E("AILNMUX", WM8400_INTDRIVBITS, WM8400_AINLMUX_PWR, 0,
-	&wm8400_dapm_ainlmux_controls, inmixer_event,
-	SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
+SND_SOC_DAPM_MUX("AILNMUX", SND_SOC_NOPM, 0, 0, &wm8400_dapm_ainlmux_controls),
 
 /* INMIXR */
-SND_SOC_DAPM_MIXER_E("INMIXR", WM8400_INTDRIVBITS, WM8400_INMIXR_PWR, 0,
+SND_SOC_DAPM_MIXER("INMIXR", SND_SOC_NOPM, 0, 0,
 	&wm8400_dapm_inmixr_controls[0],
-	ARRAY_SIZE(wm8400_dapm_inmixr_controls),
-	inmixer_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
+	ARRAY_SIZE(wm8400_dapm_inmixr_controls)),
 
 /* AINRMUX */
-SND_SOC_DAPM_MUX_E("AIRNMUX", WM8400_INTDRIVBITS, WM8400_AINRMUX_PWR, 0,
-	&wm8400_dapm_ainrmux_controls, inmixer_event,
-	SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
+SND_SOC_DAPM_MUX("AIRNMUX", SND_SOC_NOPM, 0, 0, &wm8400_dapm_ainrmux_controls),
 
 /* Output Side */
 /* DACs */
@@ -789,11 +748,13 @@ static const struct snd_soc_dapm_route wm8400_dapm_routes[] = {
 	{"LIN34 PGA", "LIN3 Switch", "LIN3"},
 	{"LIN34 PGA", "LIN4 Switch", "LIN4/RXN"},
 	/* INMIXL */
+	{"INMIXL", NULL, "INL"},
 	{"INMIXL", "Record Left Volume", "LOMIX"},
 	{"INMIXL", "LIN2 Volume", "LIN2"},
 	{"INMIXL", "LINPGA12 Switch", "LIN12 PGA"},
 	{"INMIXL", "LINPGA34 Switch", "LIN34 PGA"},
 	/* AILNMUX */
+	{"AILNMUX", NULL, "INL"},
 	{"AILNMUX", "INMIXL Mix", "INMIXL"},
 	{"AILNMUX", "DIFFINL Mix", "LIN12 PGA"},
 	{"AILNMUX", "DIFFINL Mix", "LIN34 PGA"},
@@ -808,12 +769,14 @@ static const struct snd_soc_dapm_route wm8400_dapm_routes[] = {
 	/* RIN34 PGA */
 	{"RIN34 PGA", "RIN3 Switch", "RIN3"},
 	{"RIN34 PGA", "RIN4 Switch", "RIN4/RXP"},
-	/* INMIXL */
+	/* INMIXR */
+	{"INMIXR", NULL, "INR"},
 	{"INMIXR", "Record Right Volume", "ROMIX"},
 	{"INMIXR", "RIN2 Volume", "RIN2"},
 	{"INMIXR", "RINPGA12 Switch", "RIN12 PGA"},
 	{"INMIXR", "RINPGA34 Switch", "RIN34 PGA"},
 	/* AIRNMUX */
+	{"AIRNMUX", NULL, "INR"},
 	{"AIRNMUX", "INMIXR Mix", "INMIXR"},
 	{"AIRNMUX", "DIFFINR Mix", "RIN12 PGA"},
 	{"AIRNMUX", "DIFFINR Mix", "RIN34 PGA"},
-- 
cgit 


From b8cc4151f8af97e1b573ca399a77f439f401a57e Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 13:21:12 +0100
Subject: ASoC: wm8400: Use regmap for I/O

Since we no longer have a fake register to simulate we can use the
framework for I/O.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm8400.c | 26 ++++----------------------
 1 file changed, 4 insertions(+), 22 deletions(-)

diff --git a/sound/soc/codecs/wm8400.c b/sound/soc/codecs/wm8400.c
index 95c33d169952..48dc7d2fee36 100644
--- a/sound/soc/codecs/wm8400.c
+++ b/sound/soc/codecs/wm8400.c
@@ -67,25 +67,6 @@ struct wm8400_priv {
 	int fll_in, fll_out;
 };
 
-static inline unsigned int wm8400_read(struct snd_soc_codec *codec,
-				       unsigned int reg)
-{
-	struct wm8400_priv *wm8400 = snd_soc_codec_get_drvdata(codec);
-
-	return wm8400_reg_read(wm8400->wm8400, reg);
-}
-
-/*
- * write to the wm8400 register space
- */
-static int wm8400_write(struct snd_soc_codec *codec, unsigned int reg,
-	unsigned int value)
-{
-	struct wm8400_priv *wm8400 = snd_soc_codec_get_drvdata(codec);
-
-	return wm8400_set_bits(wm8400->wm8400, reg, 0xffff, value);
-}
-
 static void wm8400_codec_reset(struct snd_soc_codec *codec)
 {
 	struct wm8400_priv *wm8400 = snd_soc_codec_get_drvdata(codec);
@@ -1328,9 +1309,12 @@ static int wm8400_codec_probe(struct snd_soc_codec *codec)
 		return -ENOMEM;
 
 	snd_soc_codec_set_drvdata(codec, priv);
-	codec->control_data = priv->wm8400 = wm8400;
+	priv->wm8400 = wm8400;
+	codec->control_data = wm8400->regmap;
 	priv->codec = codec;
 
+	snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_REGMAP);
+
 	ret = devm_regulator_bulk_get(wm8400->dev,
 				 ARRAY_SIZE(power), &power[0]);
 	if (ret != 0) {
@@ -1377,8 +1361,6 @@ static struct snd_soc_codec_driver soc_codec_dev_wm8400 = {
 	.remove =	wm8400_codec_remove,
 	.suspend =	wm8400_suspend,
 	.resume =	wm8400_resume,
-	.read = snd_soc_read,
-	.write = wm8400_write,
 	.set_bias_level = wm8400_set_bias_level,
 
 	.controls = wm8400_snd_controls,
-- 
cgit 


From a0ff6ea24f785ec58bccdbce7b366661c57e3591 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Wed, 11 Sep 2013 15:27:29 +0100
Subject: ASoC: samsung: Allow mono in i2s driver

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/samsung/i2s.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index b302f3b7a587..a7e3519ad7c4 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -1060,7 +1060,7 @@ static struct i2s_dai *i2s_alloc_dai(struct platform_device *pdev, bool sec)
 	i2s->i2s_dai_drv.ops = &samsung_i2s_dai_ops;
 	i2s->i2s_dai_drv.suspend = i2s_suspend;
 	i2s->i2s_dai_drv.resume = i2s_resume;
-	i2s->i2s_dai_drv.playback.channels_min = 2;
+	i2s->i2s_dai_drv.playback.channels_min = 1;
 	i2s->i2s_dai_drv.playback.channels_max = 2;
 	i2s->i2s_dai_drv.playback.rates = SAMSUNG_I2S_RATES;
 	i2s->i2s_dai_drv.playback.formats = SAMSUNG_I2S_FMTS;
-- 
cgit 


From b3a6006e1d106fddcfc121d0ccfa9b7faeeb8f3e Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Mon, 16 Sep 2013 15:38:15 +0100
Subject: ASoC: bells: Add missing route to power up DSP clock

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/samsung/bells.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/samsung/bells.c b/sound/soc/samsung/bells.c
index 29e246803626..84f5d8b76679 100644
--- a/sound/soc/samsung/bells.c
+++ b/sound/soc/samsung/bells.c
@@ -356,6 +356,7 @@ static struct snd_soc_dapm_widget bells_widgets[] = {
 
 static struct snd_soc_dapm_route bells_routes[] = {
 	{ "Sub CLK_SYS", NULL, "OPCLK" },
+	{ "CLKIN", NULL, "OPCLK" },
 
 	{ "DMIC", NULL, "MICBIAS2" },
 	{ "IN2L", NULL, "DMIC" },
-- 
cgit 


From 49c60547daebaa79e8de9d2dff6dee994576c94c Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Mon, 16 Sep 2013 15:34:35 +0100
Subject: ASoC: arizona: Improve handling of setting REFCLK to 0

This patch suppresses calculation of REFCLK parameters when the REFCLK
source frequency is set to zero, additionally it will consider a source
frequency of zero as the REFCLK being disabled and switch to using the
SYNCCLK.

Reported-by: Kyung Kwee Ryu <Kyung-Kwee.Ryu@wolfsonmicro.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/arizona.c | 23 ++++++++++++++---------
 1 file changed, 14 insertions(+), 9 deletions(-)

diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c
index 657808ba1418..6f05b17d1965 100644
--- a/sound/soc/codecs/arizona.c
+++ b/sound/soc/codecs/arizona.c
@@ -1477,21 +1477,25 @@ static void arizona_enable_fll(struct arizona_fll *fll,
 {
 	struct arizona *arizona = fll->arizona;
 	int ret;
+	bool use_sync = false;
 
 	/*
 	 * If we have both REFCLK and SYNCCLK then enable both,
 	 * otherwise apply the SYNCCLK settings to REFCLK.
 	 */
-	if (fll->ref_src >= 0 && fll->ref_src != fll->sync_src) {
+	if (fll->ref_src >= 0 && fll->ref_freq &&
+	    fll->ref_src != fll->sync_src) {
 		regmap_update_bits(arizona->regmap, fll->base + 5,
 				   ARIZONA_FLL1_OUTDIV_MASK,
 				   ref->outdiv << ARIZONA_FLL1_OUTDIV_SHIFT);
 
 		arizona_apply_fll(arizona, fll->base, ref, fll->ref_src,
 				  false);
-		if (fll->sync_src >= 0)
+		if (fll->sync_src >= 0) {
 			arizona_apply_fll(arizona, fll->base + 0x10, sync,
 					  fll->sync_src, true);
+			use_sync = true;
+		}
 	} else if (fll->sync_src >= 0) {
 		regmap_update_bits(arizona->regmap, fll->base + 5,
 				   ARIZONA_FLL1_OUTDIV_MASK,
@@ -1511,7 +1515,7 @@ static void arizona_enable_fll(struct arizona_fll *fll,
 	 * Increase the bandwidth if we're not using a low frequency
 	 * sync source.
 	 */
-	if (fll->sync_src >= 0 && fll->sync_freq > 100000)
+	if (use_sync && fll->sync_freq > 100000)
 		regmap_update_bits(arizona->regmap, fll->base + 0x17,
 				   ARIZONA_FLL1_SYNC_BW, 0);
 	else
@@ -1526,8 +1530,7 @@ static void arizona_enable_fll(struct arizona_fll *fll,
 
 	regmap_update_bits(arizona->regmap, fll->base + 1,
 			   ARIZONA_FLL1_ENA, ARIZONA_FLL1_ENA);
-	if (fll->ref_src >= 0 && fll->sync_src >= 0 &&
-	    fll->ref_src != fll->sync_src)
+	if (use_sync)
 		regmap_update_bits(arizona->regmap, fll->base + 0x11,
 				   ARIZONA_FLL1_SYNC_ENA,
 				   ARIZONA_FLL1_SYNC_ENA);
@@ -1561,10 +1564,12 @@ int arizona_set_fll_refclk(struct arizona_fll *fll, int source,
 	if (fll->ref_src == source && fll->ref_freq == Fref)
 		return 0;
 
-	if (fll->fout && Fref > 0) {
-		ret = arizona_calc_fll(fll, &ref, Fref, fll->fout);
-		if (ret != 0)
-			return ret;
+	if (fll->fout) {
+		if (Fref > 0) {
+			ret = arizona_calc_fll(fll, &ref, Fref, fll->fout);
+			if (ret != 0)
+				return ret;
+		}
 
 		if (fll->sync_src >= 0) {
 			ret = arizona_calc_fll(fll, &sync, fll->sync_freq,
-- 
cgit 


From 193b2f65b87e9da78b15f3e3a0cae1d37fbafa57 Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Mon, 16 Sep 2013 18:14:20 +0200
Subject: ASoC: ak4104: provide a module device table

Provide a module device table for the SPI subsystem, so the driver can
be autoloaded by the SPI core.

While at it, get rid of an unnecessary #define.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/ak4104.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/ak4104.c b/sound/soc/codecs/ak4104.c
index 71059c07ae7b..b4819dcd4f4d 100644
--- a/sound/soc/codecs/ak4104.c
+++ b/sound/soc/codecs/ak4104.c
@@ -45,8 +45,6 @@
 #define AK4104_TX_TXE			(1 << 0)
 #define AK4104_TX_V			(1 << 1)
 
-#define DRV_NAME "ak4104-codec"
-
 struct ak4104_private {
 	struct regmap *regmap;
 };
@@ -291,12 +289,19 @@ static const struct of_device_id ak4104_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, ak4104_of_match);
 
+static const struct spi_device_id ak4104_id_table[] = {
+	{ "ak4104", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(spi, ak4104_id_table);
+
 static struct spi_driver ak4104_spi_driver = {
 	.driver  = {
-		.name   = DRV_NAME,
+		.name   = "ak4104",
 		.owner  = THIS_MODULE,
 		.of_match_table = ak4104_of_match,
 	},
+	.id_table = ak4104_id_table,
 	.probe  = ak4104_spi_probe,
 	.remove = ak4104_spi_remove,
 };
-- 
cgit 


From 3615a34ea1a6c1040744449b3da223569f3221b0 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 13 Sep 2013 21:01:15 +0200
Subject: regulator: add STw481x VMMC driver

The ST Microelectronics STw481x PMIC used for the Nomadik
has one single software-controlled regulator for VMMC.
This driver registers directly to the compatible string
as there is just one regulator.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/Kconfig        |   8 +++
 drivers/regulator/Makefile       |   1 +
 drivers/regulator/stw481x-vmmc.c | 110 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 119 insertions(+)
 create mode 100644 drivers/regulator/stw481x-vmmc.c

diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index dfe58096b374..d957010b54fa 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -429,6 +429,14 @@ config REGULATOR_TI_ABB
 	  on TI SoCs may be unstable without enabling this as it provides
 	  device specific optimized bias to allow/optimize functionality.
 
+config REGULATOR_STW481X_VMMC
+	bool "ST Microelectronics STW481X VMMC regulator"
+	depends on MFD_STW481X
+	default y if MFD_STW481X
+	help
+	  This driver supports the internal VMMC regulator in the STw481x
+	  PMIC chips.
+
 config REGULATOR_TPS51632
 	tristate "TI TPS51632 Power Regulator"
 	depends on I2C
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 185cce246022..f2cfc4528b96 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -56,6 +56,7 @@ obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o
 obj-$(CONFIG_REGULATOR_RC5T583)  += rc5t583-regulator.o
 obj-$(CONFIG_REGULATOR_S2MPS11) += s2mps11.o
 obj-$(CONFIG_REGULATOR_S5M8767) += s5m8767.o
+obj-$(CONFIG_REGULATOR_STW481X_VMMC) += stw481x-vmmc.o
 obj-$(CONFIG_REGULATOR_TI_ABB) += ti-abb-regulator.o
 obj-$(CONFIG_REGULATOR_TPS6105X) += tps6105x-regulator.o
 obj-$(CONFIG_REGULATOR_TPS62360) += tps62360-regulator.o
diff --git a/drivers/regulator/stw481x-vmmc.c b/drivers/regulator/stw481x-vmmc.c
new file mode 100644
index 000000000000..5ae72a877259
--- /dev/null
+++ b/drivers/regulator/stw481x-vmmc.c
@@ -0,0 +1,110 @@
+/*
+ * Regulator driver for STw4810/STw4811 VMMC regulator.
+ *
+ * Copyright (C) 2013 ST-Ericsson SA
+ * Written on behalf of Linaro for ST-Ericsson
+ *
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/mfd/stw481x.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/of_regulator.h>
+
+static const unsigned int stw481x_vmmc_voltages[] = {
+	1800000,
+	1800000,
+	2850000,
+	3000000,
+	1850000,
+	2600000,
+	2700000,
+	3300000,
+};
+
+static struct regulator_ops stw481x_vmmc_ops = {
+	.list_voltage = regulator_list_voltage_table,
+	.enable      = regulator_enable_regmap,
+	.disable     = regulator_disable_regmap,
+	.is_enabled  = regulator_is_enabled_regmap,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+};
+
+static struct regulator_desc vmmc_regulator = {
+	.name = "VMMC",
+	.id   = 0,
+	.ops  = &stw481x_vmmc_ops,
+	.type = REGULATOR_VOLTAGE,
+	.owner = THIS_MODULE,
+	.n_voltages = ARRAY_SIZE(stw481x_vmmc_voltages),
+	.volt_table = stw481x_vmmc_voltages,
+	.enable_time = 200, /* FIXME: look this up */
+	.enable_reg = STW_CONF1,
+	.enable_mask = STW_CONF1_PDN_VMMC,
+	.vsel_reg = STW_CONF1,
+	.vsel_mask = STW_CONF1_VMMC_MASK,
+};
+
+static int stw481x_vmmc_regulator_probe(struct platform_device *pdev)
+{
+	struct stw481x *stw481x = dev_get_platdata(&pdev->dev);
+	struct regulator_config config = { };
+	int ret;
+
+	/* First disable the external VMMC if it's active */
+	ret = regmap_update_bits(stw481x->map, STW_CONF2,
+				 STW_CONF2_VMMC_EXT, 0);
+	if (ret) {
+		dev_err(&pdev->dev, "could not disable external VMMC\n");
+		return ret;
+	}
+
+	/* Register VMMC regulator */
+	config.dev = &pdev->dev;
+	config.driver_data = stw481x;
+	config.regmap = stw481x->map;
+	config.of_node = pdev->dev.of_node;
+	config.init_data = of_get_regulator_init_data(&pdev->dev,
+						      pdev->dev.of_node);
+
+	stw481x->vmmc_regulator = regulator_register(&vmmc_regulator, &config);
+	if (IS_ERR(stw481x->vmmc_regulator)) {
+		dev_err(&pdev->dev,
+			"error initializing STw481x VMMC regulator\n");
+		return PTR_ERR(stw481x->vmmc_regulator);
+	}
+
+	dev_info(&pdev->dev, "initialized STw481x VMMC regulator\n");
+	return 0;
+}
+
+static int stw481x_vmmc_regulator_remove(struct platform_device *pdev)
+{
+	struct stw481x *stw481x = dev_get_platdata(&pdev->dev);
+
+	regulator_unregister(stw481x->vmmc_regulator);
+	return 0;
+}
+
+static const struct of_device_id stw481x_vmmc_match[] = {
+	{ .compatible = "st,stw481x-vmmc", },
+	{},
+};
+
+static struct platform_driver stw481x_vmmc_regulator_driver = {
+	.driver = {
+		.name  = "stw481x-vmmc-regulator",
+		.owner = THIS_MODULE,
+	},
+	.probe = stw481x_vmmc_regulator_probe,
+	.remove = stw481x_vmmc_regulator_remove,
+};
+
+module_platform_driver(stw481x_vmmc_regulator_driver);
-- 
cgit 


From bf551413038f74343ec4d1413c3610e2362d0aeb Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 13 Sep 2013 16:16:17 +0530
Subject: ASoC: twl6040: Remove redundant semicolon

Redundant semicolon removed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/twl6040.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/twl6040.c b/sound/soc/codecs/twl6040.c
index 3c79dbb6c323..35059a242fa4 100644
--- a/sound/soc/codecs/twl6040.c
+++ b/sound/soc/codecs/twl6040.c
@@ -246,7 +246,7 @@ static bool twl6040_is_path_unmuted(struct snd_soc_codec *codec,
 		return priv->dl2_unmuted;
 	default:
 		return 1;
-	};
+	}
 }
 
 /*
@@ -1100,7 +1100,7 @@ static void twl6040_mute_path(struct snd_soc_codec *codec, enum twl6040_dai_id i
 		break;
 	default:
 		break;
-	};
+	}
 }
 
 static int twl6040_digital_mute(struct snd_soc_dai *dai, int mute)
-- 
cgit 


From a0b03a616b08cf9d709812ff5cf7e9c0958d6807 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 4 Sep 2013 20:37:34 +0100
Subject: ASoC: core: Implement devm_snd_soc_register_component()

Since with the wider use of devres many drivers are now only calling
snd_soc_unregister_component() in their remove functions providing a
managed version will save a reasonable amount of code.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/sound/soc.h    |  3 +++
 sound/soc/Makefile     |  2 +-
 sound/soc/soc-devres.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 56 insertions(+), 1 deletion(-)
 create mode 100644 sound/soc/soc-devres.c

diff --git a/include/sound/soc.h b/include/sound/soc.h
index d22cb0a06feb..b970f019b452 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -386,6 +386,9 @@ void snd_soc_unregister_codec(struct device *dev);
 int snd_soc_register_component(struct device *dev,
 			 const struct snd_soc_component_driver *cmpnt_drv,
 			 struct snd_soc_dai_driver *dai_drv, int num_dai);
+int devm_snd_soc_register_component(struct device *dev,
+			 const struct snd_soc_component_driver *cmpnt_drv,
+			 struct snd_soc_dai_driver *dai_drv, int num_dai);
 void snd_soc_unregister_component(struct device *dev);
 int snd_soc_codec_volatile_register(struct snd_soc_codec *codec,
 				    unsigned int reg);
diff --git a/sound/soc/Makefile b/sound/soc/Makefile
index 61a64d281905..8b9e70105dd2 100644
--- a/sound/soc/Makefile
+++ b/sound/soc/Makefile
@@ -1,5 +1,5 @@
 snd-soc-core-objs := soc-core.o soc-dapm.o soc-jack.o soc-cache.o soc-utils.o
-snd-soc-core-objs += soc-pcm.o soc-compress.o soc-io.o
+snd-soc-core-objs += soc-pcm.o soc-compress.o soc-io.o soc-devres.o
 
 ifneq ($(CONFIG_SND_SOC_GENERIC_DMAENGINE_PCM),)
 snd-soc-core-objs += soc-generic-dmaengine-pcm.o
diff --git a/sound/soc/soc-devres.c b/sound/soc/soc-devres.c
new file mode 100644
index 000000000000..13fe86f7c9a8
--- /dev/null
+++ b/sound/soc/soc-devres.c
@@ -0,0 +1,52 @@
+/*
+ * soc-devres.c  --  ALSA SoC Audio Layer devres functions
+ *
+ * Copyright (C) 2013 Linaro Ltd
+ *
+ *  This program is free software; you can redistribute  it and/or modify it
+ *  under  the terms of  the GNU General  Public License as published by the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <sound/soc.h>
+
+static void devm_component_release(struct device *dev, void *res)
+{
+	snd_soc_unregister_component(*(struct device **)res);
+}
+
+/**
+ * devm_snd_soc_register_component - resource managed component registration
+ * @dev: Device used to manage component
+ * @cmpnt_drv: Component driver
+ * @dai_drv: DAI driver
+ * @num_dai: Number of DAIs to register
+ *
+ * Register a component with automatic unregistration when the device is
+ * unregistered.
+ */
+int devm_snd_soc_register_component(struct device *dev,
+			 const struct snd_soc_component_driver *cmpnt_drv,
+			 struct snd_soc_dai_driver *dai_drv, int num_dai)
+{
+	struct device **ptr;
+	int ret;
+
+	ptr = devres_alloc(devm_component_release, sizeof(*ptr), GFP_KERNEL);
+	if (!ptr)
+		return -ENOMEM;
+
+	ret = snd_soc_register_component(dev, cmpnt_drv, dai_drv, num_dai);
+	if (ret == 0) {
+		*ptr = dev;
+		devres_add(dev, ptr);
+	} else {
+		devres_free(ptr);
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(devm_snd_soc_register_component);
-- 
cgit 


From 0e4ff5c806263bf40ee5409ac283b776f0c11e41 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 16 Sep 2013 18:02:05 +0100
Subject: ASoC: core: Add devm_snd_soc_register_card()

Simplify error handling and remove repetitive (and rarely executed) code
for unregistration by providing a devm_snd_soc_register() card.

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
---
 include/sound/soc.h    |  1 +
 sound/soc/soc-devres.c | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+)

diff --git a/include/sound/soc.h b/include/sound/soc.h
index b970f019b452..d44728ab2be0 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -369,6 +369,7 @@ int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
 
 int snd_soc_register_card(struct snd_soc_card *card);
 int snd_soc_unregister_card(struct snd_soc_card *card);
+int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card);
 int snd_soc_suspend(struct device *dev);
 int snd_soc_resume(struct device *dev);
 int snd_soc_poweroff(struct device *dev);
diff --git a/sound/soc/soc-devres.c b/sound/soc/soc-devres.c
index 13fe86f7c9a8..b1d732255c02 100644
--- a/sound/soc/soc-devres.c
+++ b/sound/soc/soc-devres.c
@@ -50,3 +50,37 @@ int devm_snd_soc_register_component(struct device *dev,
 	return ret;
 }
 EXPORT_SYMBOL_GPL(devm_snd_soc_register_component);
+
+static void devm_card_release(struct device *dev, void *res)
+{
+	snd_soc_unregister_card(*(struct snd_soc_card **)res);
+}
+
+/**
+ * devm_snd_soc_register_card - resource managed card registration
+ * @dev: Device used to manage card
+ * @card: Card to register
+ *
+ * Register a card with automatic unregistration when the device is
+ * unregistered.
+ */
+int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card)
+{
+	struct device **ptr;
+	int ret;
+
+	ptr = devres_alloc(devm_card_release, sizeof(*ptr), GFP_KERNEL);
+	if (!ptr)
+		return -ENOMEM;
+
+	ret = snd_soc_register_card(card);
+	if (ret == 0) {
+		*ptr = dev;
+		devres_add(dev, ptr);
+	} else {
+		devres_free(ptr);
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(devm_snd_soc_register_card);
-- 
cgit 


From 9a8e0322f0a8c7506f4ced07ec2a7e7e2a9cbe4a Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 16 Sep 2013 18:02:28 +0100
Subject: ASoC: smdk_wm8994: Use devm_snd_soc_unregister_card()

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/samsung/smdk_wm8994.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/sound/soc/samsung/smdk_wm8994.c b/sound/soc/samsung/smdk_wm8994.c
index 5fd7a05a9b9e..831972d24fb9 100644
--- a/sound/soc/samsung/smdk_wm8994.c
+++ b/sound/soc/samsung/smdk_wm8994.c
@@ -193,7 +193,7 @@ static int smdk_audio_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, board);
 
-	ret = snd_soc_register_card(card);
+	ret = devm_snd_soc_register_card(&pdev->dev, card);
 
 	if (ret)
 		dev_err(&pdev->dev, "snd_soc_register_card() failed:%d\n", ret);
@@ -201,15 +201,6 @@ static int smdk_audio_probe(struct platform_device *pdev)
 	return ret;
 }
 
-static int smdk_audio_remove(struct platform_device *pdev)
-{
-	struct snd_soc_card *card = platform_get_drvdata(pdev);
-
-	snd_soc_unregister_card(card);
-
-	return 0;
-}
-
 static struct platform_driver smdk_audio_driver = {
 	.driver		= {
 		.name	= "smdk-audio-wm8894",
@@ -217,7 +208,6 @@ static struct platform_driver smdk_audio_driver = {
 		.of_match_table = of_match_ptr(samsung_wm8994_of_match),
 	},
 	.probe		= smdk_audio_probe,
-	.remove		= smdk_audio_remove,
 };
 
 module_platform_driver(smdk_audio_driver);
-- 
cgit 


From d644a115e86433abbb544808c4be1e4b5a048c2b Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 4 Sep 2013 20:37:51 +0100
Subject: ASoC: samsung-i2s: Use devm_snd_soc_register_component()

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/samsung/i2s.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index a7e3519ad7c4..32956df8f50c 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -1143,9 +1143,9 @@ static int samsung_i2s_probe(struct platform_device *pdev)
 			dev_err(&pdev->dev, "Unable to get drvdata\n");
 			return -EFAULT;
 		}
-		snd_soc_register_component(&sec_dai->pdev->dev,
-					   &samsung_i2s_component,
-					   &sec_dai->i2s_dai_drv, 1);
+		devm_snd_soc_register_component(&sec_dai->pdev->dev,
+						&samsung_i2s_component,
+						&sec_dai->i2s_dai_drv, 1);
 		samsung_asoc_dma_platform_register(&pdev->dev);
 		return 0;
 	}
@@ -1258,8 +1258,9 @@ static int samsung_i2s_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	snd_soc_register_component(&pri_dai->pdev->dev, &samsung_i2s_component,
-				   &pri_dai->i2s_dai_drv, 1);
+	devm_snd_soc_register_component(&pri_dai->pdev->dev,
+					&samsung_i2s_component,
+					&pri_dai->i2s_dai_drv, 1);
 
 	pm_runtime_enable(&pdev->dev);
 
@@ -1294,7 +1295,6 @@ static int samsung_i2s_remove(struct platform_device *pdev)
 	i2s->sec_dai = NULL;
 
 	samsung_asoc_dma_platform_unregister(&pdev->dev);
-	snd_soc_unregister_component(&pdev->dev);
 
 	return 0;
 }
-- 
cgit 


From 0feb23d1bdf31db903069d3d94892e56b5c11981 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 13 Sep 2013 15:50:50 +0530
Subject: ASoC: ak4642: Remove redundant break

'break' after return statement is redundant. Remove it.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/ak4642.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/sound/soc/codecs/ak4642.c b/sound/soc/codecs/ak4642.c
index 2d0378709702..21c35ed778cc 100644
--- a/sound/soc/codecs/ak4642.c
+++ b/sound/soc/codecs/ak4642.c
@@ -352,7 +352,6 @@ static int ak4642_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 	 */
 	default:
 		return -EINVAL;
-		break;
 	}
 	snd_soc_update_bits(codec, MD_CTL1, DIF_MASK, data);
 
@@ -405,7 +404,6 @@ static int ak4642_dai_hw_params(struct snd_pcm_substream *substream,
 		break;
 	default:
 		return -EINVAL;
-		break;
 	}
 	snd_soc_update_bits(codec, MD_CTL2, FS_MASK, rate);
 
-- 
cgit 


From e54cf76ba2c9ec071a68e98f2830226c0cac8086 Mon Sep 17 00:00:00 2001
From: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Date: Mon, 16 Sep 2013 13:01:46 +0100
Subject: ASoC: core: Add API for configuration of DAI BCLK ratio

Some codec drivers when running in slave mode require that BCLK to sample rate ratio
is explicitly set by the machine driver as it may not be exactly rate * frame size.

Extend the DAI API by adding :-

int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio);

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/sound/soc-dai.h |  3 +++
 sound/soc/soc-core.c    | 16 ++++++++++++++++
 2 files changed, 19 insertions(+)

diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index ae9a227d35d3..d8acf0ca77be 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -105,6 +105,8 @@ int snd_soc_dai_set_clkdiv(struct snd_soc_dai *dai,
 int snd_soc_dai_set_pll(struct snd_soc_dai *dai,
 	int pll_id, int source, unsigned int freq_in, unsigned int freq_out);
 
+int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio);
+
 /* Digital Audio interface formatting */
 int snd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt);
 
@@ -131,6 +133,7 @@ struct snd_soc_dai_ops {
 	int (*set_pll)(struct snd_soc_dai *dai, int pll_id, int source,
 		unsigned int freq_in, unsigned int freq_out);
 	int (*set_clkdiv)(struct snd_soc_dai *dai, int div_id, int div);
+	int (*set_bclk_ratio)(struct snd_soc_dai *dai, unsigned int ratio);
 
 	/*
 	 * DAI format configuration
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 4d0561312f3b..31adad04222d 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -3576,6 +3576,22 @@ int snd_soc_codec_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
 }
 EXPORT_SYMBOL_GPL(snd_soc_codec_set_pll);
 
+/**
+ * snd_soc_dai_set_bclk_ratio - configure BCLK to sample rate ratio.
+ * @dai: DAI
+ * @ratio Ratio of BCLK to Sample rate.
+ *
+ * Configures the DAI for a preset BCLK to sample rate ratio.
+ */
+int snd_soc_dai_set_bclk_ratio(struct snd_soc_dai *dai, unsigned int ratio)
+{
+	if (dai->driver && dai->driver->ops->set_bclk_ratio)
+		return dai->driver->ops->set_bclk_ratio(dai, ratio);
+	else
+		return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(snd_soc_dai_set_bclk_ratio);
+
 /**
  * snd_soc_dai_set_fmt - configure DAI hardware audio format.
  * @dai: DAI
-- 
cgit 


From 666d5b4c742ba666eb68b467d777b7862f362ae5 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 18:50:52 +0100
Subject: spi: core: Add devm_spi_register_master()

Help simplify the cleanup code for SPI master drivers by providing a
managed master registration function, ensuring that the master is
automatically unregistered whenever the device is unbound.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 Documentation/driver-model/devres.txt |  3 +++
 drivers/spi/spi.c                     | 35 +++++++++++++++++++++++++++++++++++
 include/linux/spi/spi.h               |  2 ++
 3 files changed, 40 insertions(+)

diff --git a/Documentation/driver-model/devres.txt b/Documentation/driver-model/devres.txt
index fcb34a5697ea..84ea8216cc7d 100644
--- a/Documentation/driver-model/devres.txt
+++ b/Documentation/driver-model/devres.txt
@@ -302,3 +302,6 @@ PHY
 
 SLAVE DMA ENGINE
   devm_acpi_dma_controller_register()
+
+SPI
+  devm_spi_register_master()
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 9e039c60c068..a586ceb111fc 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1245,6 +1245,41 @@ done:
 }
 EXPORT_SYMBOL_GPL(spi_register_master);
 
+static void devm_spi_unregister(struct device *dev, void *res)
+{
+	spi_unregister_master(*(struct spi_master **)res);
+}
+
+/**
+ * dev_spi_register_master - register managed SPI master controller
+ * @dev:    device managing SPI master
+ * @master: initialized master, originally from spi_alloc_master()
+ * Context: can sleep
+ *
+ * Register a SPI device as with spi_register_master() which will
+ * automatically be unregister
+ */
+int devm_spi_register_master(struct device *dev, struct spi_master *master)
+{
+	struct spi_master **ptr;
+	int ret;
+
+	ptr = devres_alloc(devm_spi_unregister, sizeof(*ptr), GFP_KERNEL);
+	if (!ptr)
+		return -ENOMEM;
+
+	ret = spi_register_master(master);
+	if (ret != 0) {
+		*ptr = master;
+		devres_add(dev, ptr);
+	} else {
+		devres_free(ptr);
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(devm_spi_register_master);
+
 static int __unregister(struct device *dev, void *null)
 {
 	spi_unregister_device(to_spi_device(dev));
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 887116dbce2c..4d634d66ba0b 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -434,6 +434,8 @@ extern struct spi_master *
 spi_alloc_master(struct device *host, unsigned size);
 
 extern int spi_register_master(struct spi_master *master);
+extern int devm_spi_register_master(struct device *dev,
+				    struct spi_master *master);
 extern void spi_unregister_master(struct spi_master *master);
 
 extern struct spi_master *spi_busnum_to_master(u16 busnum);
-- 
cgit 


From 4b08478422040ae8cb11acc15d51f1cdb0ac39c8 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 30 Aug 2013 06:01:49 -0700
Subject: Drop support for Renesas H8/300 (h8300) architecture

H8/300 has been dead for several years, and the kernel for it
has not compiled for ages. Drop support for it.

Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 Documentation/scheduler/sched-arch.txt           |   5 -
 arch/h8300/Kconfig                               | 108 ------
 arch/h8300/Kconfig.cpu                           | 171 ---------
 arch/h8300/Kconfig.debug                         |  68 ----
 arch/h8300/Kconfig.ide                           |  44 ---
 arch/h8300/Makefile                              |  71 ----
 arch/h8300/README                                |  38 --
 arch/h8300/boot/Makefile                         |  22 --
 arch/h8300/boot/compressed/Makefile              |  37 --
 arch/h8300/boot/compressed/head.S                |  47 ---
 arch/h8300/boot/compressed/misc.c                | 180 ---------
 arch/h8300/boot/compressed/vmlinux.lds           |  32 --
 arch/h8300/boot/compressed/vmlinux.scr           |   9 -
 arch/h8300/defconfig                             |  42 ---
 arch/h8300/include/asm/Kbuild                    |   8 -
 arch/h8300/include/asm/asm-offsets.h             |   1 -
 arch/h8300/include/asm/atomic.h                  | 146 --------
 arch/h8300/include/asm/barrier.h                 |  29 --
 arch/h8300/include/asm/bitops.h                  | 211 -----------
 arch/h8300/include/asm/bootinfo.h                |   2 -
 arch/h8300/include/asm/bug.h                     |  12 -
 arch/h8300/include/asm/bugs.h                    |  16 -
 arch/h8300/include/asm/cache.h                   |  13 -
 arch/h8300/include/asm/cachectl.h                |  14 -
 arch/h8300/include/asm/cacheflush.h              |  40 --
 arch/h8300/include/asm/checksum.h                | 102 ------
 arch/h8300/include/asm/cmpxchg.h                 |  60 ---
 arch/h8300/include/asm/cputime.h                 |   6 -
 arch/h8300/include/asm/current.h                 |  25 --
 arch/h8300/include/asm/dbg.h                     |   2 -
 arch/h8300/include/asm/delay.h                   |  38 --
 arch/h8300/include/asm/device.h                  |   7 -
 arch/h8300/include/asm/div64.h                   |   1 -
 arch/h8300/include/asm/dma.h                     |  15 -
 arch/h8300/include/asm/elf.h                     | 101 ------
 arch/h8300/include/asm/emergency-restart.h       |   6 -
 arch/h8300/include/asm/fb.h                      |  12 -
 arch/h8300/include/asm/flat.h                    |  26 --
 arch/h8300/include/asm/fpu.h                     |   1 -
 arch/h8300/include/asm/ftrace.h                  |   1 -
 arch/h8300/include/asm/futex.h                   |   6 -
 arch/h8300/include/asm/gpio-internal.h           |  52 ---
 arch/h8300/include/asm/hardirq.h                 |  19 -
 arch/h8300/include/asm/hw_irq.h                  |   1 -
 arch/h8300/include/asm/io.h                      | 358 ------------------
 arch/h8300/include/asm/irq.h                     |  49 ---
 arch/h8300/include/asm/irq_regs.h                |   1 -
 arch/h8300/include/asm/irqflags.h                |  43 ---
 arch/h8300/include/asm/kdebug.h                  |   1 -
 arch/h8300/include/asm/kmap_types.h              |   6 -
 arch/h8300/include/asm/local.h                   |   6 -
 arch/h8300/include/asm/local64.h                 |   1 -
 arch/h8300/include/asm/mc146818rtc.h             |   9 -
 arch/h8300/include/asm/mmu_context.h             |  32 --
 arch/h8300/include/asm/mutex.h                   |   9 -
 arch/h8300/include/asm/page.h                    |  78 ----
 arch/h8300/include/asm/page_offset.h             |   3 -
 arch/h8300/include/asm/param.h                   |   9 -
 arch/h8300/include/asm/pci.h                     |  19 -
 arch/h8300/include/asm/percpu.h                  |   6 -
 arch/h8300/include/asm/pgalloc.h                 |   8 -
 arch/h8300/include/asm/pgtable.h                 |  73 ----
 arch/h8300/include/asm/processor.h               | 139 -------
 arch/h8300/include/asm/ptrace.h                  |  33 --
 arch/h8300/include/asm/regs267x.h                | 336 -----------------
 arch/h8300/include/asm/regs306x.h                | 212 -----------
 arch/h8300/include/asm/scatterlist.h             |   6 -
 arch/h8300/include/asm/sections.h                |   6 -
 arch/h8300/include/asm/segment.h                 |  49 ---
 arch/h8300/include/asm/sh_bios.h                 |  29 --
 arch/h8300/include/asm/shm.h                     |  31 --
 arch/h8300/include/asm/shmparam.h                |   6 -
 arch/h8300/include/asm/signal.h                  |  24 --
 arch/h8300/include/asm/smp.h                     |   1 -
 arch/h8300/include/asm/spinlock.h                |   6 -
 arch/h8300/include/asm/string.h                  |  44 ---
 arch/h8300/include/asm/switch_to.h               |  50 ---
 arch/h8300/include/asm/target_time.h             |   4 -
 arch/h8300/include/asm/termios.h                 |  50 ---
 arch/h8300/include/asm/thread_info.h             | 103 ------
 arch/h8300/include/asm/timer.h                   |  25 --
 arch/h8300/include/asm/timex.h                   |  19 -
 arch/h8300/include/asm/tlb.h                     |   8 -
 arch/h8300/include/asm/tlbflush.h                |  55 ---
 arch/h8300/include/asm/topology.h                |   6 -
 arch/h8300/include/asm/traps.h                   |  37 --
 arch/h8300/include/asm/types.h                   |   9 -
 arch/h8300/include/asm/uaccess.h                 | 163 ---------
 arch/h8300/include/asm/ucontext.h                |  12 -
 arch/h8300/include/asm/unaligned.h               |  11 -
 arch/h8300/include/asm/unistd.h                  |  36 --
 arch/h8300/include/asm/user.h                    |  75 ----
 arch/h8300/include/asm/virtconvert.h             |  20 -
 arch/h8300/include/uapi/asm/Kbuild               |  34 --
 arch/h8300/include/uapi/asm/auxvec.h             |   4 -
 arch/h8300/include/uapi/asm/bitsperlong.h        |   1 -
 arch/h8300/include/uapi/asm/byteorder.h          |   6 -
 arch/h8300/include/uapi/asm/errno.h              |   6 -
 arch/h8300/include/uapi/asm/fcntl.h              |  11 -
 arch/h8300/include/uapi/asm/ioctl.h              |   1 -
 arch/h8300/include/uapi/asm/ioctls.h             |   8 -
 arch/h8300/include/uapi/asm/ipcbuf.h             |   1 -
 arch/h8300/include/uapi/asm/kvm_para.h           |   1 -
 arch/h8300/include/uapi/asm/mman.h               |   1 -
 arch/h8300/include/uapi/asm/msgbuf.h             |  31 --
 arch/h8300/include/uapi/asm/param.h              |  16 -
 arch/h8300/include/uapi/asm/poll.h               |  11 -
 arch/h8300/include/uapi/asm/posix_types.h        |  26 --
 arch/h8300/include/uapi/asm/ptrace.h             |  44 ---
 arch/h8300/include/uapi/asm/resource.h           |   6 -
 arch/h8300/include/uapi/asm/sembuf.h             |  25 --
 arch/h8300/include/uapi/asm/setup.h              |   6 -
 arch/h8300/include/uapi/asm/shmbuf.h             |  42 ---
 arch/h8300/include/uapi/asm/sigcontext.h         |  18 -
 arch/h8300/include/uapi/asm/siginfo.h            |   6 -
 arch/h8300/include/uapi/asm/signal.h             | 115 ------
 arch/h8300/include/uapi/asm/socket.h             |  79 ----
 arch/h8300/include/uapi/asm/sockios.h            |  13 -
 arch/h8300/include/uapi/asm/stat.h               |  78 ----
 arch/h8300/include/uapi/asm/statfs.h             |   6 -
 arch/h8300/include/uapi/asm/swab.h               |  10 -
 arch/h8300/include/uapi/asm/termbits.h           | 201 ----------
 arch/h8300/include/uapi/asm/termios.h            |  44 ---
 arch/h8300/include/uapi/asm/types.h              |   1 -
 arch/h8300/include/uapi/asm/unistd.h             | 330 -----------------
 arch/h8300/kernel/Makefile                       |  12 -
 arch/h8300/kernel/asm-offsets.c                  |  60 ---
 arch/h8300/kernel/entry.S                        | 402 --------------------
 arch/h8300/kernel/gpio.c                         | 178 ---------
 arch/h8300/kernel/h8300_ksyms.c                  | 100 -----
 arch/h8300/kernel/irq.c                          | 165 ---------
 arch/h8300/kernel/module.c                       |  75 ----
 arch/h8300/kernel/process.c                      | 154 --------
 arch/h8300/kernel/ptrace.c                       | 168 ---------
 arch/h8300/kernel/setup.c                        | 242 ------------
 arch/h8300/kernel/signal.c                       | 444 -----------------------
 arch/h8300/kernel/sys_h8300.c                    |  48 ---
 arch/h8300/kernel/syscalls.S                     | 338 -----------------
 arch/h8300/kernel/time.c                         |  66 ----
 arch/h8300/kernel/timer/Makefile                 |   6 -
 arch/h8300/kernel/timer/itu.c                    |  82 -----
 arch/h8300/kernel/timer/timer16.c                |  77 ----
 arch/h8300/kernel/timer/timer8.c                 | 102 ------
 arch/h8300/kernel/timer/tpu.c                    | 100 -----
 arch/h8300/kernel/traps.c                        | 166 ---------
 arch/h8300/kernel/vmlinux.lds.S                  | 157 --------
 arch/h8300/lib/Makefile                          |   5 -
 arch/h8300/lib/abs.S                             |  21 --
 arch/h8300/lib/ashrdi3.c                         |  63 ----
 arch/h8300/lib/checksum.c                        | 164 ---------
 arch/h8300/lib/memcpy.S                          |  84 -----
 arch/h8300/lib/memset.S                          |  61 ----
 arch/h8300/lib/romfs.S                           |  57 ---
 arch/h8300/mm/Makefile                           |   5 -
 arch/h8300/mm/fault.c                            |  56 ---
 arch/h8300/mm/init.c                             | 155 --------
 arch/h8300/mm/kmap.c                             |  58 ---
 arch/h8300/mm/memory.c                           |  54 ---
 arch/h8300/platform/h8300h/Makefile              |   7 -
 arch/h8300/platform/h8300h/aki3068net/Makefile   |   5 -
 arch/h8300/platform/h8300h/aki3068net/crt0_ram.S | 110 ------
 arch/h8300/platform/h8300h/generic/Makefile      |   5 -
 arch/h8300/platform/h8300h/generic/crt0_ram.S    | 107 ------
 arch/h8300/platform/h8300h/generic/crt0_rom.S    | 122 -------
 arch/h8300/platform/h8300h/h8max/Makefile        |   5 -
 arch/h8300/platform/h8300h/h8max/crt0_ram.S      | 110 ------
 arch/h8300/platform/h8300h/irq.c                 |  82 -----
 arch/h8300/platform/h8300h/ptrace_h8300h.c       | 284 ---------------
 arch/h8300/platform/h8s/Makefile                 |   7 -
 arch/h8300/platform/h8s/edosk2674/Makefile       |   5 -
 arch/h8300/platform/h8s/edosk2674/crt0_ram.S     | 130 -------
 arch/h8300/platform/h8s/edosk2674/crt0_rom.S     | 186 ----------
 arch/h8300/platform/h8s/generic/Makefile         |   5 -
 arch/h8300/platform/h8s/generic/crt0_ram.S       | 127 -------
 arch/h8300/platform/h8s/generic/crt0_rom.S       | 128 -------
 arch/h8300/platform/h8s/irq.c                    | 104 ------
 arch/h8300/platform/h8s/ptrace_h8s.c             |  84 -----
 include/linux/serial_sci.h                       |   2 +-
 tools/testing/ktest/examples/crosstests.conf     |   6 -
 179 files changed, 1 insertion(+), 10890 deletions(-)
 delete mode 100644 arch/h8300/Kconfig
 delete mode 100644 arch/h8300/Kconfig.cpu
 delete mode 100644 arch/h8300/Kconfig.debug
 delete mode 100644 arch/h8300/Kconfig.ide
 delete mode 100644 arch/h8300/Makefile
 delete mode 100644 arch/h8300/README
 delete mode 100644 arch/h8300/boot/Makefile
 delete mode 100644 arch/h8300/boot/compressed/Makefile
 delete mode 100644 arch/h8300/boot/compressed/head.S
 delete mode 100644 arch/h8300/boot/compressed/misc.c
 delete mode 100644 arch/h8300/boot/compressed/vmlinux.lds
 delete mode 100644 arch/h8300/boot/compressed/vmlinux.scr
 delete mode 100644 arch/h8300/defconfig
 delete mode 100644 arch/h8300/include/asm/Kbuild
 delete mode 100644 arch/h8300/include/asm/asm-offsets.h
 delete mode 100644 arch/h8300/include/asm/atomic.h
 delete mode 100644 arch/h8300/include/asm/barrier.h
 delete mode 100644 arch/h8300/include/asm/bitops.h
 delete mode 100644 arch/h8300/include/asm/bootinfo.h
 delete mode 100644 arch/h8300/include/asm/bug.h
 delete mode 100644 arch/h8300/include/asm/bugs.h
 delete mode 100644 arch/h8300/include/asm/cache.h
 delete mode 100644 arch/h8300/include/asm/cachectl.h
 delete mode 100644 arch/h8300/include/asm/cacheflush.h
 delete mode 100644 arch/h8300/include/asm/checksum.h
 delete mode 100644 arch/h8300/include/asm/cmpxchg.h
 delete mode 100644 arch/h8300/include/asm/cputime.h
 delete mode 100644 arch/h8300/include/asm/current.h
 delete mode 100644 arch/h8300/include/asm/dbg.h
 delete mode 100644 arch/h8300/include/asm/delay.h
 delete mode 100644 arch/h8300/include/asm/device.h
 delete mode 100644 arch/h8300/include/asm/div64.h
 delete mode 100644 arch/h8300/include/asm/dma.h
 delete mode 100644 arch/h8300/include/asm/elf.h
 delete mode 100644 arch/h8300/include/asm/emergency-restart.h
 delete mode 100644 arch/h8300/include/asm/fb.h
 delete mode 100644 arch/h8300/include/asm/flat.h
 delete mode 100644 arch/h8300/include/asm/fpu.h
 delete mode 100644 arch/h8300/include/asm/ftrace.h
 delete mode 100644 arch/h8300/include/asm/futex.h
 delete mode 100644 arch/h8300/include/asm/gpio-internal.h
 delete mode 100644 arch/h8300/include/asm/hardirq.h
 delete mode 100644 arch/h8300/include/asm/hw_irq.h
 delete mode 100644 arch/h8300/include/asm/io.h
 delete mode 100644 arch/h8300/include/asm/irq.h
 delete mode 100644 arch/h8300/include/asm/irq_regs.h
 delete mode 100644 arch/h8300/include/asm/irqflags.h
 delete mode 100644 arch/h8300/include/asm/kdebug.h
 delete mode 100644 arch/h8300/include/asm/kmap_types.h
 delete mode 100644 arch/h8300/include/asm/local.h
 delete mode 100644 arch/h8300/include/asm/local64.h
 delete mode 100644 arch/h8300/include/asm/mc146818rtc.h
 delete mode 100644 arch/h8300/include/asm/mmu_context.h
 delete mode 100644 arch/h8300/include/asm/mutex.h
 delete mode 100644 arch/h8300/include/asm/page.h
 delete mode 100644 arch/h8300/include/asm/page_offset.h
 delete mode 100644 arch/h8300/include/asm/param.h
 delete mode 100644 arch/h8300/include/asm/pci.h
 delete mode 100644 arch/h8300/include/asm/percpu.h
 delete mode 100644 arch/h8300/include/asm/pgalloc.h
 delete mode 100644 arch/h8300/include/asm/pgtable.h
 delete mode 100644 arch/h8300/include/asm/processor.h
 delete mode 100644 arch/h8300/include/asm/ptrace.h
 delete mode 100644 arch/h8300/include/asm/regs267x.h
 delete mode 100644 arch/h8300/include/asm/regs306x.h
 delete mode 100644 arch/h8300/include/asm/scatterlist.h
 delete mode 100644 arch/h8300/include/asm/sections.h
 delete mode 100644 arch/h8300/include/asm/segment.h
 delete mode 100644 arch/h8300/include/asm/sh_bios.h
 delete mode 100644 arch/h8300/include/asm/shm.h
 delete mode 100644 arch/h8300/include/asm/shmparam.h
 delete mode 100644 arch/h8300/include/asm/signal.h
 delete mode 100644 arch/h8300/include/asm/smp.h
 delete mode 100644 arch/h8300/include/asm/spinlock.h
 delete mode 100644 arch/h8300/include/asm/string.h
 delete mode 100644 arch/h8300/include/asm/switch_to.h
 delete mode 100644 arch/h8300/include/asm/target_time.h
 delete mode 100644 arch/h8300/include/asm/termios.h
 delete mode 100644 arch/h8300/include/asm/thread_info.h
 delete mode 100644 arch/h8300/include/asm/timer.h
 delete mode 100644 arch/h8300/include/asm/timex.h
 delete mode 100644 arch/h8300/include/asm/tlb.h
 delete mode 100644 arch/h8300/include/asm/tlbflush.h
 delete mode 100644 arch/h8300/include/asm/topology.h
 delete mode 100644 arch/h8300/include/asm/traps.h
 delete mode 100644 arch/h8300/include/asm/types.h
 delete mode 100644 arch/h8300/include/asm/uaccess.h
 delete mode 100644 arch/h8300/include/asm/ucontext.h
 delete mode 100644 arch/h8300/include/asm/unaligned.h
 delete mode 100644 arch/h8300/include/asm/unistd.h
 delete mode 100644 arch/h8300/include/asm/user.h
 delete mode 100644 arch/h8300/include/asm/virtconvert.h
 delete mode 100644 arch/h8300/include/uapi/asm/Kbuild
 delete mode 100644 arch/h8300/include/uapi/asm/auxvec.h
 delete mode 100644 arch/h8300/include/uapi/asm/bitsperlong.h
 delete mode 100644 arch/h8300/include/uapi/asm/byteorder.h
 delete mode 100644 arch/h8300/include/uapi/asm/errno.h
 delete mode 100644 arch/h8300/include/uapi/asm/fcntl.h
 delete mode 100644 arch/h8300/include/uapi/asm/ioctl.h
 delete mode 100644 arch/h8300/include/uapi/asm/ioctls.h
 delete mode 100644 arch/h8300/include/uapi/asm/ipcbuf.h
 delete mode 100644 arch/h8300/include/uapi/asm/kvm_para.h
 delete mode 100644 arch/h8300/include/uapi/asm/mman.h
 delete mode 100644 arch/h8300/include/uapi/asm/msgbuf.h
 delete mode 100644 arch/h8300/include/uapi/asm/param.h
 delete mode 100644 arch/h8300/include/uapi/asm/poll.h
 delete mode 100644 arch/h8300/include/uapi/asm/posix_types.h
 delete mode 100644 arch/h8300/include/uapi/asm/ptrace.h
 delete mode 100644 arch/h8300/include/uapi/asm/resource.h
 delete mode 100644 arch/h8300/include/uapi/asm/sembuf.h
 delete mode 100644 arch/h8300/include/uapi/asm/setup.h
 delete mode 100644 arch/h8300/include/uapi/asm/shmbuf.h
 delete mode 100644 arch/h8300/include/uapi/asm/sigcontext.h
 delete mode 100644 arch/h8300/include/uapi/asm/siginfo.h
 delete mode 100644 arch/h8300/include/uapi/asm/signal.h
 delete mode 100644 arch/h8300/include/uapi/asm/socket.h
 delete mode 100644 arch/h8300/include/uapi/asm/sockios.h
 delete mode 100644 arch/h8300/include/uapi/asm/stat.h
 delete mode 100644 arch/h8300/include/uapi/asm/statfs.h
 delete mode 100644 arch/h8300/include/uapi/asm/swab.h
 delete mode 100644 arch/h8300/include/uapi/asm/termbits.h
 delete mode 100644 arch/h8300/include/uapi/asm/termios.h
 delete mode 100644 arch/h8300/include/uapi/asm/types.h
 delete mode 100644 arch/h8300/include/uapi/asm/unistd.h
 delete mode 100644 arch/h8300/kernel/Makefile
 delete mode 100644 arch/h8300/kernel/asm-offsets.c
 delete mode 100644 arch/h8300/kernel/entry.S
 delete mode 100644 arch/h8300/kernel/gpio.c
 delete mode 100644 arch/h8300/kernel/h8300_ksyms.c
 delete mode 100644 arch/h8300/kernel/irq.c
 delete mode 100644 arch/h8300/kernel/module.c
 delete mode 100644 arch/h8300/kernel/process.c
 delete mode 100644 arch/h8300/kernel/ptrace.c
 delete mode 100644 arch/h8300/kernel/setup.c
 delete mode 100644 arch/h8300/kernel/signal.c
 delete mode 100644 arch/h8300/kernel/sys_h8300.c
 delete mode 100644 arch/h8300/kernel/syscalls.S
 delete mode 100644 arch/h8300/kernel/time.c
 delete mode 100644 arch/h8300/kernel/timer/Makefile
 delete mode 100644 arch/h8300/kernel/timer/itu.c
 delete mode 100644 arch/h8300/kernel/timer/timer16.c
 delete mode 100644 arch/h8300/kernel/timer/timer8.c
 delete mode 100644 arch/h8300/kernel/timer/tpu.c
 delete mode 100644 arch/h8300/kernel/traps.c
 delete mode 100644 arch/h8300/kernel/vmlinux.lds.S
 delete mode 100644 arch/h8300/lib/Makefile
 delete mode 100644 arch/h8300/lib/abs.S
 delete mode 100644 arch/h8300/lib/ashrdi3.c
 delete mode 100644 arch/h8300/lib/checksum.c
 delete mode 100644 arch/h8300/lib/memcpy.S
 delete mode 100644 arch/h8300/lib/memset.S
 delete mode 100644 arch/h8300/lib/romfs.S
 delete mode 100644 arch/h8300/mm/Makefile
 delete mode 100644 arch/h8300/mm/fault.c
 delete mode 100644 arch/h8300/mm/init.c
 delete mode 100644 arch/h8300/mm/kmap.c
 delete mode 100644 arch/h8300/mm/memory.c
 delete mode 100644 arch/h8300/platform/h8300h/Makefile
 delete mode 100644 arch/h8300/platform/h8300h/aki3068net/Makefile
 delete mode 100644 arch/h8300/platform/h8300h/aki3068net/crt0_ram.S
 delete mode 100644 arch/h8300/platform/h8300h/generic/Makefile
 delete mode 100644 arch/h8300/platform/h8300h/generic/crt0_ram.S
 delete mode 100644 arch/h8300/platform/h8300h/generic/crt0_rom.S
 delete mode 100644 arch/h8300/platform/h8300h/h8max/Makefile
 delete mode 100644 arch/h8300/platform/h8300h/h8max/crt0_ram.S
 delete mode 100644 arch/h8300/platform/h8300h/irq.c
 delete mode 100644 arch/h8300/platform/h8300h/ptrace_h8300h.c
 delete mode 100644 arch/h8300/platform/h8s/Makefile
 delete mode 100644 arch/h8300/platform/h8s/edosk2674/Makefile
 delete mode 100644 arch/h8300/platform/h8s/edosk2674/crt0_ram.S
 delete mode 100644 arch/h8300/platform/h8s/edosk2674/crt0_rom.S
 delete mode 100644 arch/h8300/platform/h8s/generic/Makefile
 delete mode 100644 arch/h8300/platform/h8s/generic/crt0_ram.S
 delete mode 100644 arch/h8300/platform/h8s/generic/crt0_rom.S
 delete mode 100644 arch/h8300/platform/h8s/irq.c
 delete mode 100644 arch/h8300/platform/h8s/ptrace_h8s.c

diff --git a/Documentation/scheduler/sched-arch.txt b/Documentation/scheduler/sched-arch.txt
index b1b8587b86f0..9290de703450 100644
--- a/Documentation/scheduler/sched-arch.txt
+++ b/Documentation/scheduler/sched-arch.txt
@@ -65,11 +65,6 @@ Possible arch/ problems
 
 Possible arch problems I found (and either tried to fix or didn't):
 
-h8300 - Is such sleeping racy vs interrupts? (See #4a).
-        The H8/300 manual I found indicates yes, however disabling IRQs
-        over the sleep mean only NMIs can wake it up, so can't fix easily
-        without doing spin waiting.
-
 ia64 - is safe_halt call racy vs interrupts? (does it sleep?) (See #4a)
 
 sh64 - Is sleeping racy vs interrupts? (See #4a)
diff --git a/arch/h8300/Kconfig b/arch/h8300/Kconfig
deleted file mode 100644
index 24b1dc2564f1..000000000000
--- a/arch/h8300/Kconfig
+++ /dev/null
@@ -1,108 +0,0 @@
-config H8300
-	bool
-	default y
-	select HAVE_IDE
-	select GENERIC_ATOMIC64
-	select HAVE_UID16
-	select VIRT_TO_BUS
-	select ARCH_WANT_IPC_PARSE_VERSION
-	select GENERIC_IRQ_SHOW
-	select GENERIC_CPU_DEVICES
-	select MODULES_USE_ELF_RELA
-	select OLD_SIGSUSPEND3
-	select OLD_SIGACTION
-	select HAVE_UNDERSCORE_SYMBOL_PREFIX
-
-config MMU
-	bool
-	default n
-
-config SWAP
-	bool
-	default n
-
-config ZONE_DMA
-	bool
-	default y
-
-config FPU
-	bool
-	default n
-
-config RWSEM_GENERIC_SPINLOCK
-	bool
-	default y
-
-config RWSEM_XCHGADD_ALGORITHM
-	bool
-	default n
-
-config ARCH_HAS_ILOG2_U32
-	bool
-	default n
-
-config ARCH_HAS_ILOG2_U64
-	bool
-	default n
-
-config GENERIC_HWEIGHT
-	bool
-	default y
-
-config GENERIC_CALIBRATE_DELAY
-	bool
-	default y
-
-config GENERIC_BUG
-        bool
-        depends on BUG
-
-config TIME_LOW_RES
-	bool
-	default y
-
-config NO_IOPORT
-	def_bool y
-
-config NO_DMA
-	def_bool y
-
-config ISA
-	bool
-	default y
-
-config PCI
-	bool
-	default n
-
-config HZ
-	int
-	default 100
-
-source "init/Kconfig"
-
-source "kernel/Kconfig.freezer"
-
-source "arch/h8300/Kconfig.cpu"
-
-menu "Executable file formats"
-
-source "fs/Kconfig.binfmt"
-
-endmenu
-
-source "net/Kconfig"
-
-source "drivers/Kconfig"
-
-source "arch/h8300/Kconfig.ide"
-
-source "fs/Kconfig"
-
-source "arch/h8300/Kconfig.debug"
-
-source "security/Kconfig"
-
-source "crypto/Kconfig"
-
-source "lib/Kconfig"
diff --git a/arch/h8300/Kconfig.cpu b/arch/h8300/Kconfig.cpu
deleted file mode 100644
index cdee771460ed..000000000000
--- a/arch/h8300/Kconfig.cpu
+++ /dev/null
@@ -1,171 +0,0 @@
-menu "Processor type and features"
-
-choice
-	prompt "H8/300 platform"
-	default H8300H_GENERIC
-
-config H8300H_GENERIC
-	bool "H8/300H Generic"
-	help
-	  H8/300H CPU Generic Hardware Support
-
-config H8300H_AKI3068NET
-	bool "AE-3068/69"
-	select H83068
-	help
-	  AKI-H8/3068F / AKI-H8/3069F Flashmicom LAN Board Support
-	  More Information. (Japanese Only)
-	  <http://akizukidenshi.com/catalog/default.aspx>
-	  AE-3068/69 Evaluation Board Support
-	  More Information.
-	  <http://www.microtronique.com/ae3069lan.htm>
-
-config H8300H_H8MAX
-	bool "H8MAX"
-	select H83068
-	help
-	  H8MAX Evaluation Board Support
-	  More Information. (Japanese Only)
-	  <http://strawberry-linux.com/h8/index.html>
-
-config H8300H_SIM
-	bool "H8/300H Simulator"
-	select H83007
-	help
-	  GDB Simulator Support
-	  More Information.
-	  <http://sourceware.org/sid/>
-
-config H8S_GENERIC
-	bool "H8S Generic"
-	help
-	  H8S CPU Generic Hardware Support
-
-config H8S_EDOSK2674
-	bool "EDOSK-2674"
-	select H8S2678
-	help
-	  Renesas EDOSK-2674 Evaluation Board Support
-	  More Information.
-	  <http://www.azpower.com/H8-uClinux/index.html>
- 	  <http://www.renesas.eu/products/tools/introductory_evaluation_tools/evaluation_development_os_kits/edosk2674r/edosk2674r_software_tools_root.jsp>
-
-config H8S_SIM
-	bool "H8S Simulator"
-	help
-	  GDB Simulator Support
-	  More Information.
-	  <http://sourceware.org/sid/>
-
-endchoice
-
-choice
-	prompt "CPU Selection"
-
-config H83002
-	bool "H8/3001,3002,3003"
-	depends on BROKEN
-	select CPU_H8300H
-
-config H83007
-	bool "H8/3006,3007"
-	select CPU_H8300H
-
-config H83048
-	bool "H8/3044,3045,3046,3047,3048,3052"
-	depends on BROKEN
-	select CPU_H8300H
-
-config H83068
-	bool "H8/3065,3066,3067,3068,3069"
-	select CPU_H8300H
-
-config H8S2678
-	bool "H8S/2670,2673,2674R,2675,2676"
-	select CPU_H8S
-
-endchoice
-
-config CPU_CLOCK
-	int "CPU Clock Frequency (/1KHz)"
-	default "20000"
-	help
-	  CPU Clock Frequency divide to 1000
-
-choice
-	prompt "Kernel executes from"
-	---help---
-	  Choose the memory type that the kernel will be running in.
-
-config RAMKERNEL
-	bool "RAM"
-	help
-	  The kernel will be resident in RAM when running.
-
-config ROMKERNEL
-	bool "ROM"
-	help
-	  The kernel will be resident in FLASH/ROM when running.
-endchoice
-
-
-config CPU_H8300H
-	bool
-	depends on (H83002 || H83007 || H83048 || H83068)
-	default y
-
-config CPU_H8S
-	bool
-	depends on H8S2678
-	default y
-
-choice
-	prompt "Timer"
-config H8300_TIMER8
-	bool "8bit timer (2ch cascade)"
-	depends on (H83007 || H83068 || H8S2678)
-
-config H8300_TIMER16
-	bool "16bit timer"
-	depends on (H83007 || H83068)
-
-config H8300_ITU
-	bool "ITU"
-	depends on (H83002 || H83048)
-
-config H8300_TPU
-	bool "TPU"
-	depends on H8S2678
-endchoice
-
-if H8300_TIMER8
-choice
-	prompt "Timer Channel"
-config H8300_TIMER8_CH0
-	bool "Channel 0"
-config H8300_TIMER8_CH2
-	bool "Channel 2"
-	depends on CPU_H8300H
-endchoice
-endif
-
-config H8300_TIMER16_CH
-	int "16bit timer channel (0 - 2)"
-	depends on H8300_TIMER16
-	range 0 2
-
-config H8300_ITU_CH
-	int "ITU channel"
-	depends on H8300_ITU
-	range 0 4
-
-config H8300_TPU_CH
-	int "TPU channel"
-	depends on H8300_TPU
-	range 0 4
-
-source "kernel/Kconfig.preempt"
-
-source "mm/Kconfig"
-
-endmenu
diff --git a/arch/h8300/Kconfig.debug b/arch/h8300/Kconfig.debug
deleted file mode 100644
index e8d1b236ad8c..000000000000
--- a/arch/h8300/Kconfig.debug
+++ /dev/null
@@ -1,68 +0,0 @@
-menu "Kernel hacking"
-
-source "lib/Kconfig.debug"
-
-config FULLDEBUG
-	bool "Full Symbolic/Source Debugging support"
-	help
-	  Enable debugging symbols on kernel build.
-
-config HIGHPROFILE
-	bool "Use fast second timer for profiling"
-	help
-	  Use a fast secondary clock to produce profiling information.
-
-config NO_KERNEL_MSG
-	bool "Suppress Kernel BUG Messages"
-	help
-	  Do not output any debug BUG messages within the kernel.
-
-config GDB_MAGICPRINT
-	bool "Message Output for GDB MagicPrint service"
-	depends on (H8300H_SIM || H8S_SIM)
-	help
-	  kernel messages output using MagicPrint service from GDB
-
-config SYSCALL_PRINT
-	bool "SystemCall trace print"
-	help
-	  output history of systemcall
-
-config GDB_DEBUG
-   	bool "Use gdb stub"
-	depends on (!H8300H_SIM && !H8S_SIM)
-	help
-	  gdb stub exception support
-
-config SH_STANDARD_BIOS
-	bool "Use gdb protocol serial console"
-	depends on (!H8300H_SIM && !H8S_SIM)
-	help
-	  serial console output using GDB protocol.
-	  Require eCos/RedBoot
-
-config DEFAULT_CMDLINE
-	bool "Use builtin commandline"
-	default n
-	help
-	  builtin kernel commandline enabled.
-
-config KERNEL_COMMAND
-	string "Buildin command string"
-	depends on DEFAULT_CMDLINE
-	help
-	  builtin kernel commandline strings.
-
-config BLKDEV_RESERVE
-	bool "BLKDEV Reserved Memory"
-	default n
-	help
-	  Reserved BLKDEV area.
-
-config BLKDEV_RESERVE_ADDRESS
-	hex 'start address'
-	depends on BLKDEV_RESERVE
-	help
-	  BLKDEV start address.
-
-endmenu
diff --git a/arch/h8300/Kconfig.ide b/arch/h8300/Kconfig.ide
deleted file mode 100644
index a38a63054ac2..000000000000
--- a/arch/h8300/Kconfig.ide
+++ /dev/null
@@ -1,44 +0,0 @@
-# uClinux H8/300 Target Board Selection Menu (IDE)
-
-if (H8300H_AKI3068NET)
-menu "IDE Extra configuration"
-
-config H8300_IDE_BASE
-	hex "IDE register base address"
-	depends on IDE
-	default 0
-	help
-	  IDE registers base address
-
-config H8300_IDE_ALT
-	hex "IDE register alternate address"
-	depends on IDE
-	default 0
-	help
-	  IDE alternate registers address
-
-config H8300_IDE_IRQ
-	int "IDE IRQ no"
-	depends on IDE
-	default 0
-	help
-	  IDE use IRQ no
-endmenu
-endif
-
-if (H8300H_H8MAX)
-config H8300_IDE_BASE
-	hex
-	depends on IDE
-	default 0x200000
-
-config H8300_IDE_ALT
-	hex
-	depends on IDE
-	default 0x60000c
-
-config H8300_IDE_IRQ
-	int
-	depends on IDE
-	default 5
-endif
diff --git a/arch/h8300/Makefile b/arch/h8300/Makefile
deleted file mode 100644
index a556447877b4..000000000000
--- a/arch/h8300/Makefile
+++ /dev/null
@@ -1,71 +0,0 @@
-#
-# arch/h8300/Makefile
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License.  See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# (C) Copyright 2002,2003 Yoshinori Sato <ysato@users.sourceforge.jp>
-#
-
-platform-$(CONFIG_CPU_H8300H)	:= h8300h
-platform-$(CONFIG_CPU_H8S)	:= h8s
-PLATFORM := $(platform-y)
-
-board-$(CONFIG_H8300H_GENERIC)		:= generic
-board-$(CONFIG_H8300H_AKI3068NET)	:= aki3068net
-board-$(CONFIG_H8300H_H8MAX)		:= h8max
-board-$(CONFIG_H8300H_SIM)		:= generic
-board-$(CONFIG_H8S_GENERIC)		:= generic
-board-$(CONFIG_H8S_EDOSK2674)		:= edosk2674
-board-$(CONFIG_H8S_SIM)			:= generic
-BOARD := $(board-y)
-
-model-$(CONFIG_RAMKERNEL)	:= ram
-model-$(CONFIG_ROMKERNEL)	:= rom
-MODEL := $(model-y)
-
-cflags-$(CONFIG_CPU_H8300H)	:= -mh
-ldflags-$(CONFIG_CPU_H8300H)	:= -mh8300helf
-cflags-$(CONFIG_CPU_H8S)	:= -ms
-ldflags-$(CONFIG_CPU_H8S)	:= -mh8300self
-
-KBUILD_CFLAGS += $(cflags-y)
-KBUILD_CFLAGS += -mint32 -fno-builtin
-KBUILD_CFLAGS += -g
-KBUILD_CFLAGS += -D__linux__
-KBUILD_CFLAGS += -DUTS_SYSNAME=\"uClinux\"
-KBUILD_AFLAGS += -DPLATFORM=$(PLATFORM) -DMODEL=$(MODEL) $(cflags-y)
-LDFLAGS += $(ldflags-y)
-
-CROSS_COMPILE = h8300-elf-
-LIBGCC := $(shell $(CROSS-COMPILE)$(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
-
-head-y := arch/$(ARCH)/platform/$(PLATFORM)/$(BOARD)/crt0_$(MODEL).o
-
-core-y	+= arch/$(ARCH)/kernel/ \
-	   arch/$(ARCH)/mm/
-ifdef PLATFORM
-core-y	+= arch/$(ARCH)/platform/$(PLATFORM)/ \
-	   arch/$(ARCH)/platform/$(PLATFORM)/$(BOARD)/
-endif
-
-libs-y	+= arch/$(ARCH)/lib/ $(LIBGCC)
-
-boot := arch/h8300/boot
-
-export MODEL PLATFORM BOARD
-
-archmrproper:
-
-archclean:
-	$(Q)$(MAKE) $(clean)=$(boot)
-
-vmlinux.srec vmlinux.bin zImage: vmlinux
-	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
-
-define archhelp
-  @echo  'vmlinux.bin  - Create raw binary'
-  @echo  'vmlinux.srec - Create srec binary'
-  @echo  'zImage       - Compressed kernel image'
-endef
diff --git a/arch/h8300/README b/arch/h8300/README
deleted file mode 100644
index efa805fda19b..000000000000
--- a/arch/h8300/README
+++ /dev/null
@@ -1,38 +0,0 @@
-linux-2.6 for H8/300 README
-Yoshinori Sato <ysato@users.sourceforge.jp>
-
-* Supported CPU
-H8/300H and H8S
-
-* Supported Target
-1.simulator of GDB
-  require patches.
-
-2.AE 3068/AE 3069
-  more information 
-  MICROTRONIQUE <http://www.microtronique.com/>
-  Akizuki Denshi Tsusho Ltd. <http://akizukidenshi.com/> (Japanese Only)
-
-3.H8MAX 
-  see http://ip-sol.jp/h8max/ (Japanese Only)
-
-4.EDOSK2674
-  see http://www.eu.renesas.com/products/mpumcu/tool/edk/support/edosk2674.html
-      http://www.uclinux.org/pub/uClinux/ports/h8/HITACHI-EDOSK2674-HOWTO
-      http://www.azpower.com/H8-uClinux/
-
-* Toolchain Version
-gcc-3.1 or higher and patch
-see arch/h8300/tools_patch/README
-binutils-2.12 or higher
-gdb-5.2 or higher
-The environment that can compile a h8300-elf binary is necessary.
-
-* Userland Develop environment
-used h8300-elf toolchains.
-see http://www.uclinux.org/pub/uClinux/ports/h8/
-
-* A few words of thanks
-Porting to H8/300 serieses is support of Information-technology Promotion Agency, Japan.
-I thank support.
-and All developer/user.
diff --git a/arch/h8300/boot/Makefile b/arch/h8300/boot/Makefile
deleted file mode 100644
index 0bb62e064eea..000000000000
--- a/arch/h8300/boot/Makefile
+++ /dev/null
@@ -1,22 +0,0 @@
-# arch/h8300/boot/Makefile
-
-targets := vmlinux.srec vmlinux.bin zImage
-subdir- := compressed
-
-OBJCOPYFLAGS_vmlinux.srec := -Osrec
-OBJCOPYFLAGS_vmlinux.bin  := -Obinary
-OBJCOPYFLAGS_zImage := -O binary -R .note -R .comment -R .stab -R .stabstr -S
-
-$(obj)/vmlinux.srec $(obj)/vmlinux.bin:  vmlinux FORCE
-	$(call if_changed,objcopy)
-	@echo '  Kernel: $@ is ready'
-
-$(obj)/zImage: $(obj)/compressed/vmlinux FORCE
-	$(call if_changed,objcopy)
-	@echo 'Kernel: $@ is ready'
-
-$(obj)/compressed/vmlinux: FORCE
-	$(Q)$(MAKE) $(build)=$(obj)/compressed $@
-
-CLEAN_FILES += arch/$(ARCH)/vmlinux.bin arch/$(ARCH)/vmlinux.srec
-
diff --git a/arch/h8300/boot/compressed/Makefile b/arch/h8300/boot/compressed/Makefile
deleted file mode 100644
index a6c98fe3bbc3..000000000000
--- a/arch/h8300/boot/compressed/Makefile
+++ /dev/null
@@ -1,37 +0,0 @@
-#
-# linux/arch/sh/boot/compressed/Makefile
-#
-# create a compressed vmlinux image from the original vmlinux
-#
-
-targets		:= vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o
-asflags-y	:= -traditional
-
-OBJECTS = $(obj)/head.o $(obj)/misc.o
-
-#
-# IMAGE_OFFSET is the load offset of the compression loader
-# Assign dummy values if these 2 variables are not defined,
-# in order to suppress error message.
-#
-CONFIG_MEMORY_START     ?= 0x00400000
-CONFIG_BOOT_LINK_OFFSET ?= 0x00140000
-IMAGE_OFFSET := $(shell printf "0x%08x" $$(($(CONFIG_MEMORY_START)+$(CONFIG_BOOT_LINK_OFFSET))))
-
-LDFLAGS_vmlinux := -Ttext $(IMAGE_OFFSET) -estartup $(obj)/vmlinux.lds
-
-$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o FORCE
-	$(call if_changed,ld)
-	@:
-
-$(obj)/vmlinux.bin: vmlinux FORCE
-	$(call if_changed,objcopy)
-
-$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
-	$(call if_changed,gzip)
-
-LDFLAGS_piggy.o := -r --format binary --oformat elf32-h8300 -T
-OBJCOPYFLAGS := -O binary
-
-$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE
-	$(call if_changed,ld)
diff --git a/arch/h8300/boot/compressed/head.S b/arch/h8300/boot/compressed/head.S
deleted file mode 100644
index 10e9a2d1cc6c..000000000000
--- a/arch/h8300/boot/compressed/head.S
+++ /dev/null
@@ -1,47 +0,0 @@
-/*
- *  linux/arch/h8300/boot/compressed/head.S
- *
- *  Copyright (C) 2006 Yoshinori Sato
- */
-
-	.h8300h
-#include <linux/linkage.h>
-
-#define SRAM_START 0xff4000
-
-	.section	.text..startup
-	.global	startup
-startup:
-	mov.l	#SRAM_START+0x8000, sp
-	mov.l	#__sbss, er0
-	mov.l	#__ebss, er1
-	sub.l	er0, er1
-	shlr	er1
-	shlr	er1
-	sub.l	er2, er2
-1:
-	mov.l	er2, @er0
-	adds	#4, er0
-	dec.l	#1, er1
-	bne	1b
-	jsr	@_decompress_kernel
-	jmp	@0x400000
-
-	.align	9
-fake_headers_as_bzImage:
-	.word	0
-	.ascii	"HdrS"		; header signature
-	.word	0x0202		; header version number (>= 0x0105)
-				; or else old loadlin-1.5 will fail)
-	.word	0		; default_switch
-	.word	0		; SETUPSEG
-	.word	0x1000
-	.word	0		; pointing to kernel version string
-	.byte	0		; = 0, old one (LILO, Loadlin,
-				; 0xTV: T=0 for LILO
-				;       V = version
-	.byte	1		; Load flags bzImage=1
-	.word	0x8000		; size to move, when setup is not
-	.long	0x100000	; 0x100000 = default for big kernel
-	.long	0		; address of loaded ramdisk image
-	.long	0		; its size in bytes
diff --git a/arch/h8300/boot/compressed/misc.c b/arch/h8300/boot/compressed/misc.c
deleted file mode 100644
index 4a1e3dd43948..000000000000
--- a/arch/h8300/boot/compressed/misc.c
+++ /dev/null
@@ -1,180 +0,0 @@
-/*
- * arch/h8300/boot/compressed/misc.c
- *
- * This is a collection of several routines from gzip-1.0.3
- * adapted for Linux.
- *
- * malloc by Hannu Savolainen 1993 and Matthias Urlichs 1994
- *
- * Adapted for h8300 by Yoshinori Sato 2006
- */
-
-#include <asm/uaccess.h>
-
-/*
- * gzip declarations
- */
-
-#define OF(args)  args
-#define STATIC static
-
-#undef memset
-#undef memcpy
-#define memzero(s, n)     memset ((s), 0, (n))
-
-typedef unsigned char  uch;
-typedef unsigned short ush;
-typedef unsigned long  ulg;
-
-#define WSIZE 0x8000		/* Window size must be at least 32k, */
-				/* and a power of two */
-
-static uch *inbuf;	     /* input buffer */
-static uch window[WSIZE];    /* Sliding window buffer */
-
-static unsigned insize = 0;  /* valid bytes in inbuf */
-static unsigned inptr = 0;   /* index of next byte to be processed in inbuf */
-static unsigned outcnt = 0;  /* bytes in output buffer */
-
-/* gzip flag byte */
-#define ASCII_FLAG   0x01 /* bit 0 set: file probably ASCII text */
-#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
-#define EXTRA_FIELD  0x04 /* bit 2 set: extra field present */
-#define ORIG_NAME    0x08 /* bit 3 set: original file name present */
-#define COMMENT      0x10 /* bit 4 set: file comment present */
-#define ENCRYPTED    0x20 /* bit 5 set: file is encrypted */
-#define RESERVED     0xC0 /* bit 6,7:   reserved */
-
-#define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf())
-
-/* Diagnostic functions */
-#ifdef DEBUG
-#  define Assert(cond,msg) {if(!(cond)) error(msg);}
-#  define Trace(x) fprintf x
-#  define Tracev(x) {if (verbose) fprintf x ;}
-#  define Tracevv(x) {if (verbose>1) fprintf x ;}
-#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
-#  define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
-#else
-#  define Assert(cond,msg)
-#  define Trace(x)
-#  define Tracev(x)
-#  define Tracevv(x)
-#  define Tracec(c,x)
-#  define Tracecv(c,x)
-#endif
-
-static int  fill_inbuf(void);
-static void flush_window(void);
-static void error(char *m);
-
-extern char input_data[];
-extern int input_len;
-
-static long bytes_out = 0;
-static uch *output_data;
-static unsigned long output_ptr = 0;
-
-static void error(char *m);
-
-int puts(const char *);
-
-extern int _end;
-static unsigned long free_mem_ptr;
-static unsigned long free_mem_end_ptr;
-
-#define HEAP_SIZE             0x10000
-
-#include "../../../../lib/inflate.c"
-
-#define SCR *((volatile unsigned char *)0xffff8a)
-#define TDR *((volatile unsigned char *)0xffff8b)
-#define SSR *((volatile unsigned char *)0xffff8c)
-
-int puts(const char *s)
-{
-	return 0;
-}
-
-void* memset(void* s, int c, size_t n)
-{
-	int i;
-	char *ss = (char*)s;
-
-	for (i=0;i<n;i++) ss[i] = c;
-	return s;
-}
-
-void* memcpy(void* __dest, __const void* __src,
-			    size_t __n)
-{
-	int i;
-	char *d = (char *)__dest, *s = (char *)__src;
-
-	for (i=0;i<__n;i++) d[i] = s[i];
-	return __dest;
-}
-
-/* ===========================================================================
- * Fill the input buffer. This is called only when the buffer is empty
- * and at least one byte is really needed.
- */
-static int fill_inbuf(void)
-{
-	if (insize != 0) {
-		error("ran out of input data");
-	}
-
-	inbuf = input_data;
-	insize = input_len;
-	inptr = 1;
-	return inbuf[0];
-}
-
-/* ===========================================================================
- * Write the output window window[0..outcnt-1] and update crc and bytes_out.
- * (Used for the decompressed data only.)
- */
-static void flush_window(void)
-{
-    ulg c = crc;         /* temporary variable */
-    unsigned n;
-    uch *in, *out, ch;
-
-    in = window;
-    out = &output_data[output_ptr];
-    for (n = 0; n < outcnt; n++) {
-	    ch = *out++ = *in++;
-	    c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
-    }
-    crc = c;
-    bytes_out += (ulg)outcnt;
-    output_ptr += (ulg)outcnt;
-    outcnt = 0;
-}
-
-static void error(char *x)
-{
-	puts("\n\n");
-	puts(x);
-	puts("\n\n -- System halted");
-
-	while(1);	/* Halt */
-}
-
-#define STACK_SIZE (4096)
-long user_stack [STACK_SIZE];
-long* stack_start = &user_stack[STACK_SIZE];
-
-void decompress_kernel(void)
-{
-	output_data = 0;
-	output_ptr = (unsigned long)0x400000;
-	free_mem_ptr = (unsigned long)&_end;
-	free_mem_end_ptr = free_mem_ptr + HEAP_SIZE;
-
-	makecrc();
-	puts("Uncompressing Linux... ");
-	gunzip();
-	puts("Ok, booting the kernel.\n");
-}
diff --git a/arch/h8300/boot/compressed/vmlinux.lds b/arch/h8300/boot/compressed/vmlinux.lds
deleted file mode 100644
index a0a3a0ed54ef..000000000000
--- a/arch/h8300/boot/compressed/vmlinux.lds
+++ /dev/null
@@ -1,32 +0,0 @@
-SECTIONS
-{
-        .text :
-        {
-        __stext = . ;
-	__text = .;
-	       *(.text..startup)
-	       *(.text)
-        __etext = . ;
-        }
-
-	.rodata :
-	{
-		*(.rodata)
-	}
-        .data :
-
-        {
-        __sdata = . ;
-        ___data_start = . ;
-                *(.data.*)
-	}
-        .bss :
-        {
-        . = ALIGN(0x4) ;
-        __sbss = . ;
-                *(.bss*)
-        . = ALIGN(0x4) ;
-        __ebss = . ;
-        __end = . ;
-        }
-}
diff --git a/arch/h8300/boot/compressed/vmlinux.scr b/arch/h8300/boot/compressed/vmlinux.scr
deleted file mode 100644
index a0f6962736e9..000000000000
--- a/arch/h8300/boot/compressed/vmlinux.scr
+++ /dev/null
@@ -1,9 +0,0 @@
-SECTIONS
-{
-  .data : {
-	_input_len = .;
-	LONG(_input_data_end - _input_data) _input_data = .;
-	*(.data)
-	_input_data_end = .;
-	}
-}
diff --git a/arch/h8300/defconfig b/arch/h8300/defconfig
deleted file mode 100644
index 042425a02645..000000000000
--- a/arch/h8300/defconfig
+++ /dev/null
@@ -1,42 +0,0 @@
-CONFIG_EXPERIMENTAL=y
-# CONFIG_LOCALVERSION_AUTO is not set
-CONFIG_LOG_BUF_SHIFT=14
-CONFIG_EXPERT=y
-# CONFIG_UID16 is not set
-# CONFIG_SYSCTL_SYSCALL is not set
-# CONFIG_KALLSYMS is not set
-# CONFIG_HOTPLUG is not set
-# CONFIG_BASE_FULL is not set
-# CONFIG_FUTEX is not set
-# CONFIG_EPOLL is not set
-# CONFIG_SIGNALFD is not set
-# CONFIG_TIMERFD is not set
-# CONFIG_EVENTFD is not set
-# CONFIG_VM_EVENT_COUNTERS is not set
-# CONFIG_COMPAT_BRK is not set
-CONFIG_SLOB=y
-# CONFIG_BLK_DEV_BSG is not set
-# CONFIG_IOSCHED_DEADLINE is not set
-# CONFIG_IOSCHED_CFQ is not set
-CONFIG_H83007=y
-CONFIG_BINFMT_FLAT=y
-CONFIG_BINFMT_ZFLAT=y
-CONFIG_BINFMT_MISC=y
-# CONFIG_PREVENT_FIRMWARE_BUILD is not set
-CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_REDBOOT_PARTS=y
-CONFIG_MTD_CHAR=y
-CONFIG_MTD_RAM=y
-CONFIG_MTD_ROM=y
-CONFIG_MTD_UCLINUX=y
-# CONFIG_BLK_DEV is not set
-# CONFIG_INPUT is not set
-# CONFIG_SERIO is not set
-# CONFIG_HWMON is not set
-# CONFIG_USB_SUPPORT is not set
-# CONFIG_DNOTIFY is not set
-CONFIG_ROMFS_FS=y
-# CONFIG_ENABLE_WARN_DEPRECATED is not set
-# CONFIG_ENABLE_MUST_CHECK is not set
-# CONFIG_CRC32 is not set
diff --git a/arch/h8300/include/asm/Kbuild b/arch/h8300/include/asm/Kbuild
deleted file mode 100644
index 8ada3cf0c98d..000000000000
--- a/arch/h8300/include/asm/Kbuild
+++ /dev/null
@@ -1,8 +0,0 @@
-
-generic-y += clkdev.h
-generic-y += exec.h
-generic-y += linkage.h
-generic-y += mmu.h
-generic-y += module.h
-generic-y += trace_clock.h
-generic-y += xor.h
diff --git a/arch/h8300/include/asm/asm-offsets.h b/arch/h8300/include/asm/asm-offsets.h
deleted file mode 100644
index d370ee36a182..000000000000
--- a/arch/h8300/include/asm/asm-offsets.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <generated/asm-offsets.h>
diff --git a/arch/h8300/include/asm/atomic.h b/arch/h8300/include/asm/atomic.h
deleted file mode 100644
index 40901e353c21..000000000000
--- a/arch/h8300/include/asm/atomic.h
+++ /dev/null
@@ -1,146 +0,0 @@
-#ifndef __ARCH_H8300_ATOMIC__
-#define __ARCH_H8300_ATOMIC__
-
-#include <linux/types.h>
-#include <asm/cmpxchg.h>
-
-/*
- * Atomic operations that C can't guarantee us.  Useful for
- * resource counting etc..
- */
-
-#define ATOMIC_INIT(i)	{ (i) }
-
-#define atomic_read(v)		(*(volatile int *)&(v)->counter)
-#define atomic_set(v, i)	(((v)->counter) = i)
-
-#include <linux/kernel.h>
-
-static __inline__ int atomic_add_return(int i, atomic_t *v)
-{
-	unsigned long flags;
-	int ret;
-	local_irq_save(flags);
-	ret = v->counter += i;
-	local_irq_restore(flags);
-	return ret;
-}
-
-#define atomic_add(i, v) atomic_add_return(i, v)
-#define atomic_add_negative(a, v)	(atomic_add_return((a), (v)) < 0)
-
-static __inline__ int atomic_sub_return(int i, atomic_t *v)
-{
-	unsigned long flags;
-	int ret;
-	local_irq_save(flags);
-	ret = v->counter -= i;
-	local_irq_restore(flags);
-	return ret;
-}
-
-#define atomic_sub(i, v) atomic_sub_return(i, v)
-#define atomic_sub_and_test(i,v) (atomic_sub_return(i, v) == 0)
-
-static __inline__ int atomic_inc_return(atomic_t *v)
-{
-	unsigned long flags;
-	int ret;
-	local_irq_save(flags);
-	v->counter++;
-	ret = v->counter;
-	local_irq_restore(flags);
-	return ret;
-}
-
-#define atomic_inc(v) atomic_inc_return(v)
-
-/*
- * atomic_inc_and_test - increment and test
- * @v: pointer of type atomic_t
- *
- * Atomically increments @v by 1
- * and returns true if the result is zero, or false for all
- * other cases.
- */
-#define atomic_inc_and_test(v) (atomic_inc_return(v) == 0)
-
-static __inline__ int atomic_dec_return(atomic_t *v)
-{
-	unsigned long flags;
-	int ret;
-	local_irq_save(flags);
-	--v->counter;
-	ret = v->counter;
-	local_irq_restore(flags);
-	return ret;
-}
-
-#define atomic_dec(v) atomic_dec_return(v)
-
-static __inline__ int atomic_dec_and_test(atomic_t *v)
-{
-	unsigned long flags;
-	int ret;
-	local_irq_save(flags);
-	--v->counter;
-	ret = v->counter;
-	local_irq_restore(flags);
-	return ret == 0;
-}
-
-static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
-{
-	int ret;
-	unsigned long flags;
-
-	local_irq_save(flags);
-	ret = v->counter;
-	if (likely(ret == old))
-		v->counter = new;
-	local_irq_restore(flags);
-	return ret;
-}
-
-static inline int __atomic_add_unless(atomic_t *v, int a, int u)
-{
-	int ret;
-	unsigned long flags;
-
-	local_irq_save(flags);
-	ret = v->counter;
-	if (ret != u)
-		v->counter += a;
-	local_irq_restore(flags);
-	return ret;
-}
-
-static __inline__ void atomic_clear_mask(unsigned long mask, unsigned long *v)
-{
-	__asm__ __volatile__("stc ccr,r1l\n\t"
-	                     "orc #0x80,ccr\n\t"
-	                     "mov.l %0,er0\n\t"
-	                     "and.l %1,er0\n\t"
-	                     "mov.l er0,%0\n\t"
-	                     "ldc r1l,ccr" 
-                             : "=m" (*v) : "g" (~(mask)) :"er0","er1");
-}
-
-static __inline__ void atomic_set_mask(unsigned long mask, unsigned long *v)
-{
-	__asm__ __volatile__("stc ccr,r1l\n\t"
-	                     "orc #0x80,ccr\n\t"
-	                     "mov.l %0,er0\n\t"
-	                     "or.l %1,er0\n\t"
-	                     "mov.l er0,%0\n\t"
-	                     "ldc r1l,ccr" 
-                             : "=m" (*v) : "g" (mask) :"er0","er1");
-}
-
-/* Atomic operations are already serializing */
-#define smp_mb__before_atomic_dec()    barrier()
-#define smp_mb__after_atomic_dec() barrier()
-#define smp_mb__before_atomic_inc()    barrier()
-#define smp_mb__after_atomic_inc() barrier()
-
-#endif /* __ARCH_H8300_ATOMIC __ */
diff --git a/arch/h8300/include/asm/barrier.h b/arch/h8300/include/asm/barrier.h
deleted file mode 100644
index 9e0aa9fc195d..000000000000
--- a/arch/h8300/include/asm/barrier.h
+++ /dev/null
@@ -1,29 +0,0 @@
-#ifndef _H8300_BARRIER_H
-#define _H8300_BARRIER_H
-
-#define nop()  asm volatile ("nop"::)
-
-/*
- * Force strict CPU ordering.
- * Not really required on H8...
- */
-#define mb()   asm volatile (""   : : :"memory")
-#define rmb()  asm volatile (""   : : :"memory")
-#define wmb()  asm volatile (""   : : :"memory")
-#define set_mb(var, value) do { xchg(&var, value); } while (0)
-
-#define read_barrier_depends()	do { } while (0)
-
-#ifdef CONFIG_SMP
-#define smp_mb()	mb()
-#define smp_rmb()	rmb()
-#define smp_wmb()	wmb()
-#define smp_read_barrier_depends()	read_barrier_depends()
-#else
-#define smp_mb()	barrier()
-#define smp_rmb()	barrier()
-#define smp_wmb()	barrier()
-#define smp_read_barrier_depends()	do { } while(0)
-#endif
-
-#endif /* _H8300_BARRIER_H */
diff --git a/arch/h8300/include/asm/bitops.h b/arch/h8300/include/asm/bitops.h
deleted file mode 100644
index eb34e0cd33d5..000000000000
--- a/arch/h8300/include/asm/bitops.h
+++ /dev/null
@@ -1,211 +0,0 @@
-#ifndef _H8300_BITOPS_H
-#define _H8300_BITOPS_H
-
-/*
- * Copyright 1992, Linus Torvalds.
- * Copyright 2002, Yoshinori Sato
- */
-
-#include <linux/compiler.h>
-
-#ifdef __KERNEL__
-
-#ifndef _LINUX_BITOPS_H
-#error only <linux/bitops.h> can be included directly
-#endif
-
-/*
- * Function prototypes to keep gcc -Wall happy
- */
-
-/*
- * ffz = Find First Zero in word. Undefined if no zero exists,
- * so code should check against ~0UL first..
- */
-static __inline__ unsigned long ffz(unsigned long word)
-{
-	unsigned long result;
-
-	result = -1;
-	__asm__("1:\n\t"
-		"shlr.l %2\n\t"
-		"adds #1,%0\n\t"
-		"bcs 1b"
-		: "=r" (result)
-		: "0"  (result),"r" (word));
-	return result;
-}
-
-#define H8300_GEN_BITOP_CONST(OP,BIT)			    \
-	case BIT:					    \
-	__asm__(OP " #" #BIT ",@%0"::"r"(b_addr):"memory"); \
-	break;
-
-#define H8300_GEN_BITOP(FNAME,OP)				      \
-static __inline__ void FNAME(int nr, volatile unsigned long* addr)    \
-{								      \
-	volatile unsigned char *b_addr;				      \
-	b_addr = (volatile unsigned char *)addr + ((nr >> 3) ^ 3);    \
-	if (__builtin_constant_p(nr)) {				      \
-		switch(nr & 7) {				      \
-			H8300_GEN_BITOP_CONST(OP,0)		      \
-			H8300_GEN_BITOP_CONST(OP,1)		      \
-			H8300_GEN_BITOP_CONST(OP,2)		      \
-			H8300_GEN_BITOP_CONST(OP,3)		      \
-			H8300_GEN_BITOP_CONST(OP,4)		      \
-			H8300_GEN_BITOP_CONST(OP,5)		      \
-			H8300_GEN_BITOP_CONST(OP,6)		      \
-			H8300_GEN_BITOP_CONST(OP,7)		      \
-		}						      \
-	} else {						      \
-		__asm__(OP " %w0,@%1"::"r"(nr),"r"(b_addr):"memory"); \
-	}							      \
-}
-
-/*
- * clear_bit() doesn't provide any barrier for the compiler.
- */
-#define smp_mb__before_clear_bit()	barrier()
-#define smp_mb__after_clear_bit()	barrier()
-
-H8300_GEN_BITOP(set_bit	  ,"bset")
-H8300_GEN_BITOP(clear_bit ,"bclr")
-H8300_GEN_BITOP(change_bit,"bnot")
-#define __set_bit(nr,addr)    set_bit((nr),(addr))
-#define __clear_bit(nr,addr)  clear_bit((nr),(addr))
-#define __change_bit(nr,addr) change_bit((nr),(addr))
-
-#undef H8300_GEN_BITOP
-#undef H8300_GEN_BITOP_CONST
-
-static __inline__ int test_bit(int nr, const unsigned long* addr)
-{
-	return (*((volatile unsigned char *)addr + 
-               ((nr >> 3) ^ 3)) & (1UL << (nr & 7))) != 0;
-}
-
-#define __test_bit(nr, addr) test_bit(nr, addr)
-
-#define H8300_GEN_TEST_BITOP_CONST_INT(OP,BIT)			     \
-	case BIT:						     \
-	__asm__("stc ccr,%w1\n\t"				     \
-		"orc #0x80,ccr\n\t"				     \
-		"bld #" #BIT ",@%4\n\t"				     \
-		OP " #" #BIT ",@%4\n\t"				     \
-		"rotxl.l %0\n\t"				     \
-		"ldc %w1,ccr"					     \
-		: "=r"(retval),"=&r"(ccrsave),"=m"(*b_addr)	     \
-		: "0" (retval),"r" (b_addr)			     \
-		: "memory");                                         \
-        break;
-
-#define H8300_GEN_TEST_BITOP_CONST(OP,BIT)			     \
-	case BIT:						     \
-	__asm__("bld #" #BIT ",@%3\n\t"				     \
-		OP " #" #BIT ",@%3\n\t"				     \
-		"rotxl.l %0\n\t"				     \
-		: "=r"(retval),"=m"(*b_addr)			     \
-		: "0" (retval),"r" (b_addr)			     \
-		: "memory");                                         \
-        break;
-
-#define H8300_GEN_TEST_BITOP(FNNAME,OP)				     \
-static __inline__ int FNNAME(int nr, volatile void * addr)	     \
-{								     \
-	int retval = 0;						     \
-	char ccrsave;						     \
-	volatile unsigned char *b_addr;				     \
-	b_addr = (volatile unsigned char *)addr + ((nr >> 3) ^ 3);   \
-	if (__builtin_constant_p(nr)) {				     \
-		switch(nr & 7) {				     \
-			H8300_GEN_TEST_BITOP_CONST_INT(OP,0)	     \
-			H8300_GEN_TEST_BITOP_CONST_INT(OP,1)	     \
-			H8300_GEN_TEST_BITOP_CONST_INT(OP,2)	     \
-			H8300_GEN_TEST_BITOP_CONST_INT(OP,3)	     \
-			H8300_GEN_TEST_BITOP_CONST_INT(OP,4)	     \
-			H8300_GEN_TEST_BITOP_CONST_INT(OP,5)	     \
-			H8300_GEN_TEST_BITOP_CONST_INT(OP,6)	     \
-			H8300_GEN_TEST_BITOP_CONST_INT(OP,7)	     \
-		}						     \
-	} else {						     \
-		__asm__("stc ccr,%w1\n\t"			     \
-			"orc #0x80,ccr\n\t"			     \
-			"btst %w5,@%4\n\t"			     \
-			OP " %w5,@%4\n\t"			     \
-			"beq 1f\n\t"				     \
-			"inc.l #1,%0\n"				     \
-			"1:\n\t"				     \
-			"ldc %w1,ccr"				     \
-			: "=r"(retval),"=&r"(ccrsave),"=m"(*b_addr)  \
-			: "0" (retval),"r" (b_addr),"r"(nr)	     \
-			: "memory");				     \
-	}							     \
-	return retval;						     \
-}								     \
-								     \
-static __inline__ int __ ## FNNAME(int nr, volatile void * addr)     \
-{								     \
-	int retval = 0;						     \
-	volatile unsigned char *b_addr;				     \
-	b_addr = (volatile unsigned char *)addr + ((nr >> 3) ^ 3);   \
-	if (__builtin_constant_p(nr)) {				     \
-		switch(nr & 7) {				     \
-			H8300_GEN_TEST_BITOP_CONST(OP,0) 	     \
-			H8300_GEN_TEST_BITOP_CONST(OP,1) 	     \
-			H8300_GEN_TEST_BITOP_CONST(OP,2) 	     \
-			H8300_GEN_TEST_BITOP_CONST(OP,3) 	     \
-			H8300_GEN_TEST_BITOP_CONST(OP,4) 	     \
-			H8300_GEN_TEST_BITOP_CONST(OP,5) 	     \
-			H8300_GEN_TEST_BITOP_CONST(OP,6) 	     \
-			H8300_GEN_TEST_BITOP_CONST(OP,7) 	     \
-		}						     \
-	} else {						     \
-		__asm__("btst %w4,@%3\n\t"			     \
-			OP " %w4,@%3\n\t"			     \
-			"beq 1f\n\t"				     \
-			"inc.l #1,%0\n"				     \
-			"1:"					     \
-			: "=r"(retval),"=m"(*b_addr)		     \
-			: "0" (retval),"r" (b_addr),"r"(nr)	     \
-			: "memory");				     \
-	}							     \
-	return retval;						     \
-}
-
-H8300_GEN_TEST_BITOP(test_and_set_bit,	 "bset")
-H8300_GEN_TEST_BITOP(test_and_clear_bit, "bclr")
-H8300_GEN_TEST_BITOP(test_and_change_bit,"bnot")
-#undef H8300_GEN_TEST_BITOP_CONST
-#undef H8300_GEN_TEST_BITOP_CONST_INT
-#undef H8300_GEN_TEST_BITOP
-
-#include <asm-generic/bitops/ffs.h>
-
-static __inline__ unsigned long __ffs(unsigned long word)
-{
-	unsigned long result;
-
-	result = -1;
-	__asm__("1:\n\t"
-		"shlr.l %2\n\t"
-		"adds #1,%0\n\t"
-		"bcc 1b"
-		: "=r" (result)
-		: "0"(result),"r"(word));
-	return result;
-}
-
-#include <asm-generic/bitops/find.h>
-#include <asm-generic/bitops/sched.h>
-#include <asm-generic/bitops/hweight.h>
-#include <asm-generic/bitops/lock.h>
-#include <asm-generic/bitops/le.h>
-#include <asm-generic/bitops/ext2-atomic.h>
-
-#endif /* __KERNEL__ */
-
-#include <asm-generic/bitops/fls.h>
-#include <asm-generic/bitops/__fls.h>
-#include <asm-generic/bitops/fls64.h>
-
-#endif /* _H8300_BITOPS_H */
diff --git a/arch/h8300/include/asm/bootinfo.h b/arch/h8300/include/asm/bootinfo.h
deleted file mode 100644
index 5bed7e7aac0a..000000000000
--- a/arch/h8300/include/asm/bootinfo.h
+++ /dev/null
@@ -1,2 +0,0 @@
-
-/* Nothing for h8300 */
diff --git a/arch/h8300/include/asm/bug.h b/arch/h8300/include/asm/bug.h
deleted file mode 100644
index 1e1be8119935..000000000000
--- a/arch/h8300/include/asm/bug.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _H8300_BUG_H
-#define _H8300_BUG_H
-
-/* always true */
-#define is_valid_bugaddr(addr) (1)
-
-#include <asm-generic/bug.h>
-
-struct pt_regs;
-extern void die(const char *str, struct pt_regs *fp, unsigned long err);
-
-#endif
diff --git a/arch/h8300/include/asm/bugs.h b/arch/h8300/include/asm/bugs.h
deleted file mode 100644
index 1cb4afba6eb1..000000000000
--- a/arch/h8300/include/asm/bugs.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/*
- *  include/asm-h8300/bugs.h
- *
- *  Copyright (C) 1994  Linus Torvalds
- */
-
-/*
- * This is included by init/main.c to check for architecture-dependent bugs.
- *
- * Needs:
- *	void check_bugs(void);
- */
-
-static void check_bugs(void)
-{
-}
diff --git a/arch/h8300/include/asm/cache.h b/arch/h8300/include/asm/cache.h
deleted file mode 100644
index 05887a1d80e5..000000000000
--- a/arch/h8300/include/asm/cache.h
+++ /dev/null
@@ -1,13 +0,0 @@
-#ifndef __ARCH_H8300_CACHE_H
-#define __ARCH_H8300_CACHE_H
-
-/* bytes per L1 cache line */
-#define        L1_CACHE_SHIFT  2
-#define        L1_CACHE_BYTES  (1 << L1_CACHE_SHIFT)
-
-/* m68k-elf-gcc  2.95.2 doesn't like these */
-
-#define __cacheline_aligned
-#define ____cacheline_aligned
-
-#endif
diff --git a/arch/h8300/include/asm/cachectl.h b/arch/h8300/include/asm/cachectl.h
deleted file mode 100644
index c464022d8e26..000000000000
--- a/arch/h8300/include/asm/cachectl.h
+++ /dev/null
@@ -1,14 +0,0 @@
-#ifndef _H8300_CACHECTL_H
-#define _H8300_CACHECTL_H
-
-/* Definitions for the cacheflush system call.  */
-
-#define FLUSH_SCOPE_LINE    0	/* Flush a cache line */
-#define FLUSH_SCOPE_PAGE    0	/* Flush a page */
-#define FLUSH_SCOPE_ALL     0	/* Flush the whole cache -- superuser only */
-
-#define FLUSH_CACHE_DATA    0	/* Writeback and flush data cache */
-#define FLUSH_CACHE_INSN    0	/* Flush instruction cache */
-#define FLUSH_CACHE_BOTH    0	/* Flush both caches */
-
-#endif /* _H8300_CACHECTL_H */
diff --git a/arch/h8300/include/asm/cacheflush.h b/arch/h8300/include/asm/cacheflush.h
deleted file mode 100644
index 4cf2df20c1ce..000000000000
--- a/arch/h8300/include/asm/cacheflush.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * (C) Copyright 2002, Yoshinori Sato <ysato@users.sourceforge.jp>
- */
-
-#ifndef _ASM_H8300_CACHEFLUSH_H
-#define _ASM_H8300_CACHEFLUSH_H
-
-/*
- * Cache handling functions
- * No Cache memory all dummy functions
- */
-
-#define flush_cache_all()
-#define	flush_cache_mm(mm)
-#define	flush_cache_dup_mm(mm)		do { } while (0)
-#define	flush_cache_range(vma,a,b)
-#define	flush_cache_page(vma,p,pfn)
-#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
-#define	flush_dcache_page(page)
-#define	flush_dcache_mmap_lock(mapping)
-#define	flush_dcache_mmap_unlock(mapping)
-#define	flush_icache()
-#define	flush_icache_page(vma,page)
-#define	flush_icache_range(start,len)
-#define flush_cache_vmap(start, end)
-#define flush_cache_vunmap(start, end)
-#define	cache_push_v(vaddr,len)
-#define	cache_push(paddr,len)
-#define	cache_clear(paddr,len)
-
-#define	flush_dcache_range(a,b)
-
-#define	flush_icache_user_range(vma,page,addr,len)
-
-#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
-	memcpy(dst, src, len)
-#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
-	memcpy(dst, src, len)
-
-#endif /* _ASM_H8300_CACHEFLUSH_H */
diff --git a/arch/h8300/include/asm/checksum.h b/arch/h8300/include/asm/checksum.h
deleted file mode 100644
index 98724e12508c..000000000000
--- a/arch/h8300/include/asm/checksum.h
+++ /dev/null
@@ -1,102 +0,0 @@
-#ifndef _H8300_CHECKSUM_H
-#define _H8300_CHECKSUM_H
-
-/*
- * computes the checksum of a memory block at buff, length len,
- * and adds in "sum" (32-bit)
- *
- * returns a 32-bit number suitable for feeding into itself
- * or csum_tcpudp_magic
- *
- * this function must be called with even lengths, except
- * for the last fragment, which may be odd
- *
- * it's best to have buff aligned on a 32-bit boundary
- */
-__wsum csum_partial(const void *buff, int len, __wsum sum);
-
-/*
- * the same as csum_partial, but copies from src while it
- * checksums
- *
- * here even more important to align src and dst on a 32-bit (or even
- * better 64-bit) boundary
- */
-
-__wsum csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum);
-
-
-/*
- * the same as csum_partial_copy, but copies from user space.
- *
- * here even more important to align src and dst on a 32-bit (or even
- * better 64-bit) boundary
- */
-
-extern __wsum csum_partial_copy_from_user(const void __user *src, void *dst,
-						int len, __wsum sum, int *csum_err);
-
-__sum16 ip_fast_csum(const void *iph, unsigned int ihl);
-
-
-/*
- *	Fold a partial checksum
- */
-
-static inline __sum16 csum_fold(__wsum sum)
-{
-	__asm__("mov.l %0,er0\n\t"
-		"add.w e0,r0\n\t"
-		"xor.w e0,e0\n\t"
-		"rotxl.w e0\n\t"
-		"add.w e0,r0\n\t"
-		"sub.w e0,e0\n\t"
-		"mov.l er0,%0"
-		: "=r"(sum)
-		: "0"(sum)
-		: "er0");
-	return (__force __sum16)~sum;
-}
-
-
-/*
- * computes the checksum of the TCP/UDP pseudo-header
- * returns a 16-bit checksum, already complemented
- */
-
-static inline __wsum
-csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
-		  unsigned short proto, __wsum sum)
-{
-	__asm__ ("sub.l er0,er0\n\t"
-		 "add.l %2,%0\n\t"
-		 "addx	#0,r0l\n\t"
-		 "add.l	%3,%0\n\t"
-		 "addx	#0,r0l\n\t"
-		 "add.l %4,%0\n\t"
-		 "addx	#0,r0l\n\t"
-		 "add.l	er0,%0\n\t"
-		 "bcc	1f\n\t"
-		 "inc.l	#1,%0\n"
-		 "1:"
-		 : "=&r" (sum)
-		 : "0" (sum), "r" (daddr), "r" (saddr), "r" (len + proto)
-		 :"er0");
-	return sum;
-}
-
-static inline __sum16
-csum_tcpudp_magic(__be32 saddr, __be32 daddr, unsigned short len,
-		  unsigned short proto, __wsum sum)
-{
-	return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));
-}
-
-/*
- * this routine is used for miscellaneous IP-like checksums, mainly
- * in icmp.c
- */
-
-extern __sum16 ip_compute_csum(const void *buff, int len);
-
-#endif /* _H8300_CHECKSUM_H */
diff --git a/arch/h8300/include/asm/cmpxchg.h b/arch/h8300/include/asm/cmpxchg.h
deleted file mode 100644
index cdb203ef681f..000000000000
--- a/arch/h8300/include/asm/cmpxchg.h
+++ /dev/null
@@ -1,60 +0,0 @@
-#ifndef __ARCH_H8300_CMPXCHG__
-#define __ARCH_H8300_CMPXCHG__
-
-#include <linux/irqflags.h>
-
-#define xchg(ptr,x) ((__typeof__(*(ptr)))__xchg((unsigned long)(x),(ptr),sizeof(*(ptr))))
-
-struct __xchg_dummy { unsigned long a[100]; };
-#define __xg(x) ((volatile struct __xchg_dummy *)(x))
-
-static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
-{
-  unsigned long tmp, flags;
-
-  local_irq_save(flags);
-
-  switch (size) {
-  case 1:
-    __asm__ __volatile__
-    ("mov.b %2,%0\n\t"
-     "mov.b %1,%2"
-    : "=&r" (tmp) : "r" (x), "m" (*__xg(ptr)) : "memory");
-    break;
-  case 2:
-    __asm__ __volatile__
-    ("mov.w %2,%0\n\t"
-     "mov.w %1,%2"
-    : "=&r" (tmp) : "r" (x), "m" (*__xg(ptr)) : "memory");
-    break;
-  case 4:
-    __asm__ __volatile__
-    ("mov.l %2,%0\n\t"
-     "mov.l %1,%2"
-    : "=&r" (tmp) : "r" (x), "m" (*__xg(ptr)) : "memory");
-    break;
-  default:
-    tmp = 0;	  
-  }
-  local_irq_restore(flags);
-  return tmp;
-}
-
-#include <asm-generic/cmpxchg-local.h>
-
-/*
- * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
- * them available.
- */
-#define cmpxchg_local(ptr, o, n)				  	       \
-	((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
-			(unsigned long)(n), sizeof(*(ptr))))
-#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
-
-#ifndef CONFIG_SMP
-#include <asm-generic/cmpxchg.h>
-#endif
-
-#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
-
-#endif /* __ARCH_H8300_CMPXCHG__ */
diff --git a/arch/h8300/include/asm/cputime.h b/arch/h8300/include/asm/cputime.h
deleted file mode 100644
index 092e187c7b08..000000000000
--- a/arch/h8300/include/asm/cputime.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __H8300_CPUTIME_H
-#define __H8300_CPUTIME_H
-
-#include <asm-generic/cputime.h>
-
-#endif /* __H8300_CPUTIME_H */
diff --git a/arch/h8300/include/asm/current.h b/arch/h8300/include/asm/current.h
deleted file mode 100644
index 57d74ee55a14..000000000000
--- a/arch/h8300/include/asm/current.h
+++ /dev/null
@@ -1,25 +0,0 @@
-#ifndef _H8300_CURRENT_H
-#define _H8300_CURRENT_H
-/*
- *	current.h
- *	(C) Copyright 2000, Lineo, David McCullough <davidm@lineo.com>
- *	(C) Copyright 2002, Greg Ungerer (gerg@snapgear.com)
- *
- *	rather than dedicate a register (as the m68k source does), we
- *	just keep a global,  we should probably just change it all to be
- *	current and lose _current_task.
- */
-
-#include <linux/thread_info.h>
-#include <asm/thread_info.h>
-
-struct task_struct;
-
-static inline struct task_struct *get_current(void)
-{
-	return(current_thread_info()->task);
-}
-
-#define	current	get_current()
-
-#endif /* _H8300_CURRENT_H */
diff --git a/arch/h8300/include/asm/dbg.h b/arch/h8300/include/asm/dbg.h
deleted file mode 100644
index 2c6d1cbcf736..000000000000
--- a/arch/h8300/include/asm/dbg.h
+++ /dev/null
@@ -1,2 +0,0 @@
-#define DEBUG 1
-#define	BREAK asm volatile ("trap #3")
diff --git a/arch/h8300/include/asm/delay.h b/arch/h8300/include/asm/delay.h
deleted file mode 100644
index 743beba70f82..000000000000
--- a/arch/h8300/include/asm/delay.h
+++ /dev/null
@@ -1,38 +0,0 @@
-#ifndef _H8300_DELAY_H
-#define _H8300_DELAY_H
-
-#include <asm/param.h>
-
-/*
- * Copyright (C) 2002 Yoshinori Sato <ysato@sourceforge.jp>
- *
- * Delay routines, using a pre-computed "loops_per_second" value.
- */
-
-static inline void __delay(unsigned long loops)
-{
-	__asm__ __volatile__ ("1:\n\t"
-			      "dec.l #1,%0\n\t"
-			      "bne 1b"
-			      :"=r" (loops):"0"(loops));
-}
-
-/*
- * Use only for very small delays ( < 1 msec).  Should probably use a
- * lookup table, really, as the multiplications take much too long with
- * short delays.  This is a "reasonable" implementation, though (and the
- * first constant multiplications gets optimized away if the delay is
- * a constant)  
- */
-
-extern unsigned long loops_per_jiffy;
-
-static inline void udelay(unsigned long usecs)
-{
-	usecs *= 4295;		/* 2**32 / 1000000 */
-	usecs /= (loops_per_jiffy*HZ);
-	if (usecs)
-		__delay(usecs);
-}
-
-#endif /* _H8300_DELAY_H */
diff --git a/arch/h8300/include/asm/device.h b/arch/h8300/include/asm/device.h
deleted file mode 100644
index d8f9872b0e2d..000000000000
--- a/arch/h8300/include/asm/device.h
+++ /dev/null
@@ -1,7 +0,0 @@
-/*
- * Arch specific extensions to struct device
- *
- * This file is released under the GPLv2
- */
-#include <asm-generic/device.h>
-
diff --git a/arch/h8300/include/asm/div64.h b/arch/h8300/include/asm/div64.h
deleted file mode 100644
index 6cd978cefb28..000000000000
--- a/arch/h8300/include/asm/div64.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/div64.h>
diff --git a/arch/h8300/include/asm/dma.h b/arch/h8300/include/asm/dma.h
deleted file mode 100644
index 3edbaaaedf5b..000000000000
--- a/arch/h8300/include/asm/dma.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef _H8300_DMA_H
-#define _H8300_DMA_H 
- 
-
-/*
- * Set number of channels of DMA on ColdFire for different implementations.
- */
-#define MAX_DMA_CHANNELS 0
-#define MAX_DMA_ADDRESS PAGE_OFFSET
-
-/* These are in kernel/dma.c: */
-extern int request_dma(unsigned int dmanr, const char *device_id);	/* reserve a DMA channel */
-extern void free_dma(unsigned int dmanr);	/* release it again */
- 
-#endif /* _H8300_DMA_H */
diff --git a/arch/h8300/include/asm/elf.h b/arch/h8300/include/asm/elf.h
deleted file mode 100644
index 6db71248a82f..000000000000
--- a/arch/h8300/include/asm/elf.h
+++ /dev/null
@@ -1,101 +0,0 @@
-#ifndef __ASMH8300_ELF_H
-#define __ASMH8300_ELF_H
-
-/*
- * ELF register definitions..
- */
-
-#include <asm/ptrace.h>
-#include <asm/user.h>
-
-typedef unsigned long elf_greg_t;
-
-#define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t))
-typedef elf_greg_t elf_gregset_t[ELF_NGREG];
-typedef unsigned long elf_fpregset_t;
-
-/*
- * This is used to ensure we don't load something for the wrong architecture.
- */
-#define elf_check_arch(x) ((x)->e_machine == EM_H8_300)
-
-/*
- * These are used to set parameters in the core dumps.
- */
-#define ELF_CLASS	ELFCLASS32
-#define ELF_DATA	ELFDATA2MSB
-#define ELF_ARCH	EM_H8_300
-#if defined(__H8300H__)
-#define ELF_CORE_EFLAGS 0x810000
-#endif
-#if defined(__H8300S__)
-#define ELF_CORE_EFLAGS 0x820000
-#endif
-
-#define ELF_PLAT_INIT(_r)	_r->er1 = 0
-
-#define ELF_EXEC_PAGESIZE	4096
-
-/* This is the location that an ET_DYN program is loaded if exec'ed.  Typical
-   use of this is to invoke "./ld.so someprog" to test out a new version of
-   the loader.  We need to make sure that it is out of the way of the program
-   that it will "exec", and that there is sufficient room for the brk.  */
-
-#define ELF_ET_DYN_BASE         0xD0000000UL
-
-/* This yields a mask that user programs can use to figure out what
-   instruction set this cpu supports.  */
-
-#define ELF_HWCAP	(0)
-
-/* This yields a string that ld.so will use to load implementation
-   specific libraries for optimization.  This is more specific in
-   intent than poking at uname or /proc/cpuinfo.  */
-
-#define ELF_PLATFORM  (NULL)
-
-#define R_H8_NONE       0
-#define R_H8_DIR32      1
-#define R_H8_DIR32_28   2
-#define R_H8_DIR32_24   3
-#define R_H8_DIR32_16   4
-#define R_H8_DIR32U     6
-#define R_H8_DIR32U_28  7
-#define R_H8_DIR32U_24  8
-#define R_H8_DIR32U_20  9
-#define R_H8_DIR32U_16 10
-#define R_H8_DIR24     11
-#define R_H8_DIR24_20  12
-#define R_H8_DIR24_16  13
-#define R_H8_DIR24U    14
-#define R_H8_DIR24U_20 15
-#define R_H8_DIR24U_16 16
-#define R_H8_DIR16     17
-#define R_H8_DIR16U    18
-#define R_H8_DIR16S_32 19
-#define R_H8_DIR16S_28 20
-#define R_H8_DIR16S_24 21
-#define R_H8_DIR16S_20 22
-#define R_H8_DIR16S    23
-#define R_H8_DIR8      24
-#define R_H8_DIR8U     25
-#define R_H8_DIR8Z_32  26
-#define R_H8_DIR8Z_28  27
-#define R_H8_DIR8Z_24  28
-#define R_H8_DIR8Z_20  29
-#define R_H8_DIR8Z_16  30
-#define R_H8_PCREL16   31
-#define R_H8_PCREL8    32
-#define R_H8_BPOS      33
-#define R_H8_PCREL32   34
-#define R_H8_GOT32O    35
-#define R_H8_GOT16O    36
-#define R_H8_DIR16A8   59
-#define R_H8_DIR16R8   60
-#define R_H8_DIR24A8   61
-#define R_H8_DIR24R8   62
-#define R_H8_DIR32A16  63
-#define R_H8_ABS32     65
-#define R_H8_ABS32A16 127
-
-#endif
diff --git a/arch/h8300/include/asm/emergency-restart.h b/arch/h8300/include/asm/emergency-restart.h
deleted file mode 100644
index 108d8c48e42e..000000000000
--- a/arch/h8300/include/asm/emergency-restart.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_EMERGENCY_RESTART_H
-#define _ASM_EMERGENCY_RESTART_H
-
-#include <asm-generic/emergency-restart.h>
-
-#endif /* _ASM_EMERGENCY_RESTART_H */
diff --git a/arch/h8300/include/asm/fb.h b/arch/h8300/include/asm/fb.h
deleted file mode 100644
index c7df38030992..000000000000
--- a/arch/h8300/include/asm/fb.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _ASM_FB_H_
-#define _ASM_FB_H_
-#include <linux/fb.h>
-
-#define fb_pgprotect(...) do {} while (0)
-
-static inline int fb_is_primary_device(struct fb_info *info)
-{
-	return 0;
-}
-
-#endif /* _ASM_FB_H_ */
diff --git a/arch/h8300/include/asm/flat.h b/arch/h8300/include/asm/flat.h
deleted file mode 100644
index bd12b31b90e6..000000000000
--- a/arch/h8300/include/asm/flat.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * include/asm-h8300/flat.h -- uClinux flat-format executables
- */
-
-#ifndef __H8300_FLAT_H__
-#define __H8300_FLAT_H__
-
-#define	flat_argvp_envp_on_stack()		1
-#define	flat_old_ram_flag(flags)		1
-#define	flat_reloc_valid(reloc, size)		((reloc) <= (size))
-#define	flat_set_persistent(relval, p)		0
-
-/*
- * on the H8 a couple of the relocations have an instruction in the
- * top byte.  As there can only be 24bits of address space,  we just
- * always preserve that 8bits at the top,  when it isn't an instruction
- * is is 0 (davidm@snapgear.com)
- */
-
-#define	flat_get_relocate_addr(rel)		(rel)
-#define flat_get_addr_from_rp(rp, relval, flags, persistent) \
-        (get_unaligned(rp) & ((flags & FLAT_FLAG_GOTPIC) ? 0xffffffff: 0x00ffffff))
-#define flat_put_addr_at_rp(rp, addr, rel) \
-	put_unaligned (((*(char *)(rp)) << 24) | ((addr) & 0x00ffffff), rp)
-
-#endif /* __H8300_FLAT_H__ */
diff --git a/arch/h8300/include/asm/fpu.h b/arch/h8300/include/asm/fpu.h
deleted file mode 100644
index 4fc416e80bef..000000000000
--- a/arch/h8300/include/asm/fpu.h
+++ /dev/null
@@ -1 +0,0 @@
-/* Nothing do */
diff --git a/arch/h8300/include/asm/ftrace.h b/arch/h8300/include/asm/ftrace.h
deleted file mode 100644
index 40a8c178f10d..000000000000
--- a/arch/h8300/include/asm/ftrace.h
+++ /dev/null
@@ -1 +0,0 @@
-/* empty */
diff --git a/arch/h8300/include/asm/futex.h b/arch/h8300/include/asm/futex.h
deleted file mode 100644
index 6a332a9f099c..000000000000
--- a/arch/h8300/include/asm/futex.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_FUTEX_H
-#define _ASM_FUTEX_H
-
-#include <asm-generic/futex.h>
-
-#endif
diff --git a/arch/h8300/include/asm/gpio-internal.h b/arch/h8300/include/asm/gpio-internal.h
deleted file mode 100644
index a714f0c0efbc..000000000000
--- a/arch/h8300/include/asm/gpio-internal.h
+++ /dev/null
@@ -1,52 +0,0 @@
-#ifndef _H8300_GPIO_H
-#define _H8300_GPIO_H
-
-#define H8300_GPIO_P1 0
-#define H8300_GPIO_P2 1
-#define H8300_GPIO_P3 2
-#define H8300_GPIO_P4 3
-#define H8300_GPIO_P5 4
-#define H8300_GPIO_P6 5
-#define H8300_GPIO_P7 6
-#define H8300_GPIO_P8 7
-#define H8300_GPIO_P9 8
-#define H8300_GPIO_PA 9
-#define H8300_GPIO_PB 10
-#define H8300_GPIO_PC 11
-#define H8300_GPIO_PD 12
-#define H8300_GPIO_PE 13
-#define H8300_GPIO_PF 14
-#define H8300_GPIO_PG 15
-#define H8300_GPIO_PH 16
-
-#define H8300_GPIO_B7 0x80
-#define H8300_GPIO_B6 0x40
-#define H8300_GPIO_B5 0x20
-#define H8300_GPIO_B4 0x10
-#define H8300_GPIO_B3 0x08
-#define H8300_GPIO_B2 0x04
-#define H8300_GPIO_B1 0x02
-#define H8300_GPIO_B0 0x01
-
-#define H8300_GPIO_INPUT 0
-#define H8300_GPIO_OUTPUT 1
-
-#define H8300_GPIO_RESERVE(port, bits) \
-        h8300_reserved_gpio(port, bits)
-
-#define H8300_GPIO_FREE(port, bits) \
-        h8300_free_gpio(port, bits)
-
-#define H8300_GPIO_DDR(port, bit, dir) \
-        h8300_set_gpio_dir(((port) << 8) | (bit), dir)
-
-#define H8300_GPIO_GETDIR(port, bit) \
-        h8300_get_gpio_dir(((port) << 8) | (bit))
-
-extern int h8300_reserved_gpio(int port, int bits);
-extern int h8300_free_gpio(int port, int bits);
-extern int h8300_set_gpio_dir(int port_bit, int dir);
-extern int h8300_get_gpio_dir(int port_bit);
-extern int h8300_init_gpio(void);
-
-#endif
diff --git a/arch/h8300/include/asm/hardirq.h b/arch/h8300/include/asm/hardirq.h
deleted file mode 100644
index c2e1aa0f0d14..000000000000
--- a/arch/h8300/include/asm/hardirq.h
+++ /dev/null
@@ -1,19 +0,0 @@
-#ifndef __H8300_HARDIRQ_H
-#define __H8300_HARDIRQ_H
-
-#include <asm/irq.h>
-
-#define HARDIRQ_BITS	8
-
-/*
- * The hardirq mask has to be large enough to have
- * space for potentially all IRQ sources in the system
- * nesting on a single CPU:
- */
-#if (1 << HARDIRQ_BITS) < NR_IRQS
-# error HARDIRQ_BITS is too low!
-#endif
-
-#include <asm-generic/hardirq.h>
-
-#endif
diff --git a/arch/h8300/include/asm/hw_irq.h b/arch/h8300/include/asm/hw_irq.h
deleted file mode 100644
index d75a5a1119e8..000000000000
--- a/arch/h8300/include/asm/hw_irq.h
+++ /dev/null
@@ -1 +0,0 @@
-/* Do Nothing */
diff --git a/arch/h8300/include/asm/io.h b/arch/h8300/include/asm/io.h
deleted file mode 100644
index c1a8df22080f..000000000000
--- a/arch/h8300/include/asm/io.h
+++ /dev/null
@@ -1,358 +0,0 @@
-#ifndef _H8300_IO_H
-#define _H8300_IO_H
-
-#ifdef __KERNEL__
-
-#include <asm/virtconvert.h>
-
-#if defined(CONFIG_H83007) || defined(CONFIG_H83068)
-#include <asm/regs306x.h>
-#elif defined(CONFIG_H8S2678)
-#include <asm/regs267x.h>
-#else
-#error UNKNOWN CPU TYPE
-#endif
-
-
-/*
- * These are for ISA/PCI shared memory _only_ and should never be used
- * on any other type of memory, including Zorro memory. They are meant to
- * access the bus in the bus byte order which is little-endian!.
- *
- * readX/writeX() are used to access memory mapped devices. On some
- * architectures the memory mapped IO stuff needs to be accessed
- * differently. On the m68k architecture, we just read/write the
- * memory location directly.
- */
-/* ++roman: The assignments to temp. vars avoid that gcc sometimes generates
- * two accesses to memory, which may be undesirable for some devices.
- */
-
-/*
- * swap functions are sometimes needed to interface little-endian hardware
- */
-
-static inline unsigned short _swapw(volatile unsigned short v)
-{
-#ifndef H8300_IO_NOSWAP
-	unsigned short r;
-	__asm__("xor.b %w0,%x0\n\t"
-		"xor.b %x0,%w0\n\t"
-		"xor.b %w0,%x0"
-		:"=r"(r)
-		:"0"(v));
-	return r;
-#else
-	return v;
-#endif
-}
-
-static inline unsigned long _swapl(volatile unsigned long v)
-{
-#ifndef H8300_IO_NOSWAP
-	unsigned long r;
-	__asm__("xor.b %w0,%x0\n\t"
-		"xor.b %x0,%w0\n\t"
-		"xor.b %w0,%x0\n\t"
-		"xor.w %e0,%f0\n\t"
-		"xor.w %f0,%e0\n\t"
-		"xor.w %e0,%f0\n\t"
-		"xor.b %w0,%x0\n\t"
-		"xor.b %x0,%w0\n\t"
-		"xor.b %w0,%x0"
-		:"=r"(r)
-		:"0"(v));
-	return r;
-#else
-	return v;
-#endif
-}
-
-#define readb(addr) \
-    ({ unsigned char __v = \
-     *(volatile unsigned char *)((unsigned long)(addr) & 0x00ffffff); \
-     __v; })
-#define readw(addr) \
-    ({ unsigned short __v = \
-     *(volatile unsigned short *)((unsigned long)(addr) & 0x00ffffff); \
-     __v; })
-#define readl(addr) \
-    ({ unsigned long __v = \
-     *(volatile unsigned long *)((unsigned long)(addr) & 0x00ffffff); \
-     __v; })
-
-#define writeb(b,addr) (void)((*(volatile unsigned char *) \
-                             ((unsigned long)(addr) & 0x00ffffff)) = (b))
-#define writew(b,addr) (void)((*(volatile unsigned short *) \
-                             ((unsigned long)(addr) & 0x00ffffff)) = (b))
-#define writel(b,addr) (void)((*(volatile unsigned long *) \
-                             ((unsigned long)(addr) & 0x00ffffff)) = (b))
-#define readb_relaxed(addr) readb(addr)
-#define readw_relaxed(addr) readw(addr)
-#define readl_relaxed(addr) readl(addr)
-
-#define __raw_readb readb
-#define __raw_readw readw
-#define __raw_readl readl
-#define __raw_writeb writeb
-#define __raw_writew writew
-#define __raw_writel writel
-
-static inline int h8300_buswidth(unsigned int addr)
-{
-	return (*(volatile unsigned char *)ABWCR & (1 << ((addr >> 21) & 7))) == 0;
-}
-
-static inline void io_outsb(unsigned int addr, const void *buf, int len)
-{
-	volatile unsigned char  *ap_b = (volatile unsigned char *) addr;
-	volatile unsigned short *ap_w = (volatile unsigned short *) addr;
-	unsigned char *bp = (unsigned char *) buf;
-
-	if(h8300_buswidth(addr) && (addr & 1)) {
-		while (len--)
-			*ap_w = *bp++;
-	} else {
-		while (len--)
-			*ap_b = *bp++;
-	}
-}
-
-static inline void io_outsw(unsigned int addr, const void *buf, int len)
-{
-	volatile unsigned short *ap = (volatile unsigned short *) addr;
-	unsigned short *bp = (unsigned short *) buf;
-	while (len--)
-		*ap = _swapw(*bp++);
-}
-
-static inline void io_outsl(unsigned int addr, const void *buf, int len)
-{
-	volatile unsigned long *ap = (volatile unsigned long *) addr;
-	unsigned long *bp = (unsigned long *) buf;
-	while (len--)
-		*ap = _swapl(*bp++);
-}
-
-static inline void io_outsw_noswap(unsigned int addr, const void *buf, int len)
-{
-	volatile unsigned short *ap = (volatile unsigned short *) addr;
-	unsigned short *bp = (unsigned short *) buf;
-	while (len--)
-		*ap = *bp++;
-}
-
-static inline void io_outsl_noswap(unsigned int addr, const void *buf, int len)
-{
-	volatile unsigned long *ap = (volatile unsigned long *) addr;
-	unsigned long *bp = (unsigned long *) buf;
-	while (len--)
-		*ap = *bp++;
-}
-
-static inline void io_insb(unsigned int addr, void *buf, int len)
-{
-	volatile unsigned char  *ap_b;
-	volatile unsigned short *ap_w;
-	unsigned char *bp = (unsigned char *) buf;
-
-	if(h8300_buswidth(addr)) {
-		ap_w = (volatile unsigned short *)(addr & ~1);
-		while (len--)
-			*bp++ = *ap_w & 0xff;
-	} else {
-		ap_b = (volatile unsigned char *)addr;
-		while (len--)
-			*bp++ = *ap_b;
-	}
-}
-
-static inline void io_insw(unsigned int addr, void *buf, int len)
-{
-	volatile unsigned short *ap = (volatile unsigned short *) addr;
-	unsigned short *bp = (unsigned short *) buf;
-	while (len--)
-		*bp++ = _swapw(*ap);
-}
-
-static inline void io_insl(unsigned int addr, void *buf, int len)
-{
-	volatile unsigned long *ap = (volatile unsigned long *) addr;
-	unsigned long *bp = (unsigned long *) buf;
-	while (len--)
-		*bp++ = _swapl(*ap);
-}
-
-static inline void io_insw_noswap(unsigned int addr, void *buf, int len)
-{
-	volatile unsigned short *ap = (volatile unsigned short *) addr;
-	unsigned short *bp = (unsigned short *) buf;
-	while (len--)
-		*bp++ = *ap;
-}
-
-static inline void io_insl_noswap(unsigned int addr, void *buf, int len)
-{
-	volatile unsigned long *ap = (volatile unsigned long *) addr;
-	unsigned long *bp = (unsigned long *) buf;
-	while (len--)
-		*bp++ = *ap;
-}
-
-/*
- *	make the short names macros so specific devices
- *	can override them as required
- */
-
-#define memset_io(a,b,c)	memset((void *)(a),(b),(c))
-#define memcpy_fromio(a,b,c)	memcpy((a),(void *)(b),(c))
-#define memcpy_toio(a,b,c)	memcpy((void *)(a),(b),(c))
-
-#define mmiowb()
-
-#define inb(addr)    ((h8300_buswidth(addr))?readw((addr) & ~1) & 0xff:readb(addr))
-#define inw(addr)    _swapw(readw(addr))
-#define inl(addr)    _swapl(readl(addr))
-#define outb(x,addr) ((void)((h8300_buswidth(addr) && \
-                      ((addr) & 1))?writew(x,(addr) & ~1):writeb(x,addr)))
-#define outw(x,addr) ((void) writew(_swapw(x),addr))
-#define outl(x,addr) ((void) writel(_swapl(x),addr))
-
-#define inb_p(addr)    inb(addr)
-#define inw_p(addr)    inw(addr)
-#define inl_p(addr)    inl(addr)
-#define outb_p(x,addr) outb(x,addr)
-#define outw_p(x,addr) outw(x,addr)
-#define outl_p(x,addr) outl(x,addr)
-
-#define outsb(a,b,l) io_outsb(a,b,l)
-#define outsw(a,b,l) io_outsw(a,b,l)
-#define outsl(a,b,l) io_outsl(a,b,l)
-
-#define insb(a,b,l) io_insb(a,b,l)
-#define insw(a,b,l) io_insw(a,b,l)
-#define insl(a,b,l) io_insl(a,b,l)
-
-#define IO_SPACE_LIMIT 0xffffff
-
-
-/* Values for nocacheflag and cmode */
-#define IOMAP_FULL_CACHING		0
-#define IOMAP_NOCACHE_SER		1
-#define IOMAP_NOCACHE_NONSER		2
-#define IOMAP_WRITETHROUGH		3
-
-extern void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag);
-extern void __iounmap(void *addr, unsigned long size);
-
-static inline void *ioremap(unsigned long physaddr, unsigned long size)
-{
-	return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
-}
-static inline void *ioremap_nocache(unsigned long physaddr, unsigned long size)
-{
-	return __ioremap(physaddr, size, IOMAP_NOCACHE_SER);
-}
-static inline void *ioremap_writethrough(unsigned long physaddr, unsigned long size)
-{
-	return __ioremap(physaddr, size, IOMAP_WRITETHROUGH);
-}
-static inline void *ioremap_fullcache(unsigned long physaddr, unsigned long size)
-{
-	return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
-}
-
-extern void iounmap(void *addr);
-
-/* H8/300 internal I/O functions */
-static __inline__ unsigned char ctrl_inb(unsigned long addr)
-{
-	return *(volatile unsigned char*)addr;
-}
-
-static __inline__ unsigned short ctrl_inw(unsigned long addr)
-{
-	return *(volatile unsigned short*)addr;
-}
-
-static __inline__ unsigned long ctrl_inl(unsigned long addr)
-{
-	return *(volatile unsigned long*)addr;
-}
-
-static __inline__ void ctrl_outb(unsigned char b, unsigned long addr)
-{
-	*(volatile unsigned char*)addr = b;
-}
-
-static __inline__ void ctrl_outw(unsigned short b, unsigned long addr)
-{
-	*(volatile unsigned short*)addr = b;
-}
-
-static __inline__ void ctrl_outl(unsigned long b, unsigned long addr)
-{
-        *(volatile unsigned long*)addr = b;
-}
-
-static __inline__ void ctrl_bclr(int b, unsigned long addr)
-{
-	if (__builtin_constant_p(b))
-		switch (b) {
-		case 0: __asm__("bclr #0,@%0"::"r"(addr)); break;
-		case 1: __asm__("bclr #1,@%0"::"r"(addr)); break;
-		case 2: __asm__("bclr #2,@%0"::"r"(addr)); break;
-		case 3: __asm__("bclr #3,@%0"::"r"(addr)); break;
-		case 4: __asm__("bclr #4,@%0"::"r"(addr)); break;
-		case 5: __asm__("bclr #5,@%0"::"r"(addr)); break;
-		case 6: __asm__("bclr #6,@%0"::"r"(addr)); break;
-		case 7: __asm__("bclr #7,@%0"::"r"(addr)); break;
-		}
-	else
-		__asm__("bclr %w0,@%1"::"r"(b), "r"(addr));
-}
-
-static __inline__ void ctrl_bset(int b, unsigned long addr)
-{
-	if (__builtin_constant_p(b))
-		switch (b) {
-		case 0: __asm__("bset #0,@%0"::"r"(addr)); break;
-		case 1: __asm__("bset #1,@%0"::"r"(addr)); break;
-		case 2: __asm__("bset #2,@%0"::"r"(addr)); break;
-		case 3: __asm__("bset #3,@%0"::"r"(addr)); break;
-		case 4: __asm__("bset #4,@%0"::"r"(addr)); break;
-		case 5: __asm__("bset #5,@%0"::"r"(addr)); break;
-		case 6: __asm__("bset #6,@%0"::"r"(addr)); break;
-		case 7: __asm__("bset #7,@%0"::"r"(addr)); break;
-		}
-	else
-		__asm__("bset %w0,@%1"::"r"(b), "r"(addr));
-}
-
-/* Pages to physical address... */
-#define page_to_phys(page)      ((page - mem_map) << PAGE_SHIFT)
-#define page_to_bus(page)       ((page - mem_map) << PAGE_SHIFT)
-
-/*
- * Macros used for converting between virtual and physical mappings.
- */
-#define phys_to_virt(vaddr)	((void *) (vaddr))
-#define virt_to_phys(vaddr)	((unsigned long) (vaddr))
-
-#define virt_to_bus virt_to_phys
-#define bus_to_virt phys_to_virt
-
-/*
- * Convert a physical pointer to a virtual kernel pointer for /dev/mem
- * access
- */
-#define xlate_dev_mem_ptr(p)	__va(p)
-
-/*
- * Convert a virtual cached pointer to an uncached pointer
- */
-#define xlate_dev_kmem_ptr(p)	p
-
-#endif /* __KERNEL__ */
-
-#endif /* _H8300_IO_H */
diff --git a/arch/h8300/include/asm/irq.h b/arch/h8300/include/asm/irq.h
deleted file mode 100644
index 13d7c601cd0a..000000000000
--- a/arch/h8300/include/asm/irq.h
+++ /dev/null
@@ -1,49 +0,0 @@
-#ifndef _H8300_IRQ_H_
-#define _H8300_IRQ_H_
-
-#include <asm/ptrace.h>
-
-#if defined(CONFIG_CPU_H8300H)
-#define NR_IRQS 64
-#define EXT_IRQ0 12
-#define EXT_IRQ1 13
-#define EXT_IRQ2 14
-#define EXT_IRQ3 15
-#define EXT_IRQ4 16
-#define EXT_IRQ5 17
-#define EXT_IRQ6 18
-#define EXT_IRQ7 19
-#define EXT_IRQS 5
-#define IER_REGS *(volatile unsigned char *)IER
-#endif
-#if defined(CONFIG_CPU_H8S)
-#define NR_IRQS 128
-#define EXT_IRQ0 16
-#define EXT_IRQ1 17
-#define EXT_IRQ2 18
-#define EXT_IRQ3 19
-#define EXT_IRQ4 20
-#define EXT_IRQ5 21
-#define EXT_IRQ6 22
-#define EXT_IRQ7 23
-#define EXT_IRQ8 24
-#define EXT_IRQ9 25
-#define EXT_IRQ10 26
-#define EXT_IRQ11 27
-#define EXT_IRQ12 28
-#define EXT_IRQ13 29
-#define EXT_IRQ14 30
-#define EXT_IRQ15 31
-#define EXT_IRQS 15
-
-#define IER_REGS *(volatile unsigned short *)IER
-#endif
-
-static __inline__ int irq_canonicalize(int irq)
-{
-	return irq;
-}
-
-typedef void (*h8300_vector)(void);
-
-#endif /* _H8300_IRQ_H_ */
diff --git a/arch/h8300/include/asm/irq_regs.h b/arch/h8300/include/asm/irq_regs.h
deleted file mode 100644
index 3dd9c0b70270..000000000000
--- a/arch/h8300/include/asm/irq_regs.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/irq_regs.h>
diff --git a/arch/h8300/include/asm/irqflags.h b/arch/h8300/include/asm/irqflags.h
deleted file mode 100644
index 9617cd57aebd..000000000000
--- a/arch/h8300/include/asm/irqflags.h
+++ /dev/null
@@ -1,43 +0,0 @@
-#ifndef _H8300_IRQFLAGS_H
-#define _H8300_IRQFLAGS_H
-
-static inline unsigned long arch_local_save_flags(void)
-{
-	unsigned long flags;
-	asm volatile ("stc ccr,%w0" : "=r" (flags));
-	return flags;
-}
-
-static inline void arch_local_irq_disable(void)
-{
-	asm volatile ("orc  #0x80,ccr" : : : "memory");
-}
-
-static inline void arch_local_irq_enable(void)
-{
-	asm volatile ("andc #0x7f,ccr" : : : "memory");
-}
-
-static inline unsigned long arch_local_irq_save(void)
-{
-	unsigned long flags = arch_local_save_flags();
-	arch_local_irq_disable();
-	return flags;
-}
-
-static inline void arch_local_irq_restore(unsigned long flags)
-{
-	asm volatile ("ldc %w0,ccr" : : "r" (flags) : "memory");
-}
-
-static inline bool arch_irqs_disabled_flags(unsigned long flags)
-{
-	return (flags & 0x80) == 0x80;
-}
-
-static inline bool arch_irqs_disabled(void)
-{
-	return arch_irqs_disabled_flags(arch_local_save_flags());
-}
-
-#endif /* _H8300_IRQFLAGS_H */
diff --git a/arch/h8300/include/asm/kdebug.h b/arch/h8300/include/asm/kdebug.h
deleted file mode 100644
index 6ece1b037665..000000000000
--- a/arch/h8300/include/asm/kdebug.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/kdebug.h>
diff --git a/arch/h8300/include/asm/kmap_types.h b/arch/h8300/include/asm/kmap_types.h
deleted file mode 100644
index be12a7160116..000000000000
--- a/arch/h8300/include/asm/kmap_types.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_H8300_KMAP_TYPES_H
-#define _ASM_H8300_KMAP_TYPES_H
-
-#include <asm-generic/kmap_types.h>
-
-#endif
diff --git a/arch/h8300/include/asm/local.h b/arch/h8300/include/asm/local.h
deleted file mode 100644
index fdd4efe437cd..000000000000
--- a/arch/h8300/include/asm/local.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _H8300_LOCAL_H_
-#define _H8300_LOCAL_H_
-
-#include <asm-generic/local.h>
-
-#endif
diff --git a/arch/h8300/include/asm/local64.h b/arch/h8300/include/asm/local64.h
deleted file mode 100644
index 36c93b5cc239..000000000000
--- a/arch/h8300/include/asm/local64.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/local64.h>
diff --git a/arch/h8300/include/asm/mc146818rtc.h b/arch/h8300/include/asm/mc146818rtc.h
deleted file mode 100644
index ab9d9646d241..000000000000
--- a/arch/h8300/include/asm/mc146818rtc.h
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
- * Machine dependent access functions for RTC registers.
- */
-#ifndef _H8300_MC146818RTC_H
-#define _H8300_MC146818RTC_H
-
-/* empty include file to satisfy the include in genrtc.c/ide-geometry.c */
-
-#endif /* _H8300_MC146818RTC_H */
diff --git a/arch/h8300/include/asm/mmu_context.h b/arch/h8300/include/asm/mmu_context.h
deleted file mode 100644
index f44b730da54d..000000000000
--- a/arch/h8300/include/asm/mmu_context.h
+++ /dev/null
@@ -1,32 +0,0 @@
-#ifndef __H8300_MMU_CONTEXT_H
-#define __H8300_MMU_CONTEXT_H
-
-#include <asm/setup.h>
-#include <asm/page.h>
-#include <asm/pgalloc.h>
-#include <asm-generic/mm_hooks.h>
-
-static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
-{
-}
-
-static inline int
-init_new_context(struct task_struct *tsk, struct mm_struct *mm)
-{
-	// mm->context = virt_to_phys(mm->pgd);
-	return(0);
-}
-
-#define destroy_context(mm)		do { } while(0)
-#define deactivate_mm(tsk,mm)           do { } while(0)
-
-static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, struct task_struct *tsk)
-{
-}
-
-static inline void activate_mm(struct mm_struct *prev_mm,
-			       struct mm_struct *next_mm)
-{
-}
-
-#endif
diff --git a/arch/h8300/include/asm/mutex.h b/arch/h8300/include/asm/mutex.h
deleted file mode 100644
index 458c1f7fbc18..000000000000
--- a/arch/h8300/include/asm/mutex.h
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
- * Pull in the generic implementation for the mutex fastpath.
- *
- * TODO: implement optimized primitives instead, or leave the generic
- * implementation in place, or pick the atomic_xchg() based generic
- * implementation. (see asm-generic/mutex-xchg.h for details)
- */
-
-#include <asm-generic/mutex-dec.h>
diff --git a/arch/h8300/include/asm/page.h b/arch/h8300/include/asm/page.h
deleted file mode 100644
index 837381a2df46..000000000000
--- a/arch/h8300/include/asm/page.h
+++ /dev/null
@@ -1,78 +0,0 @@
-#ifndef _H8300_PAGE_H
-#define _H8300_PAGE_H
-
-/* PAGE_SHIFT determines the page size */
-
-#define PAGE_SHIFT	(12)
-#define PAGE_SIZE	(1UL << PAGE_SHIFT)
-#define PAGE_MASK	(~(PAGE_SIZE-1))
-
-#include <asm/setup.h>
-
-#ifndef __ASSEMBLY__
- 
-#define get_user_page(vaddr)		__get_free_page(GFP_KERNEL)
-#define free_user_page(page, addr)	free_page(addr)
-
-#define clear_page(page)	memset((page), 0, PAGE_SIZE)
-#define copy_page(to,from)	memcpy((to), (from), PAGE_SIZE)
-
-#define clear_user_page(page, vaddr, pg)	clear_page(page)
-#define copy_user_page(to, from, vaddr, pg)	copy_page(to, from)
-
-#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \
-	alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr)
-#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
-
-/*
- * These are used to make use of C type-checking..
- */
-typedef struct { unsigned long pte; } pte_t;
-typedef struct { unsigned long pmd[16]; } pmd_t;
-typedef struct { unsigned long pgd; } pgd_t;
-typedef struct { unsigned long pgprot; } pgprot_t;
-typedef struct page *pgtable_t;
-
-#define pte_val(x)	((x).pte)
-#define pmd_val(x)	((&x)->pmd[0])
-#define pgd_val(x)	((x).pgd)
-#define pgprot_val(x)	((x).pgprot)
-
-#define __pte(x)	((pte_t) { (x) } )
-#define __pmd(x)	((pmd_t) { (x) } )
-#define __pgd(x)	((pgd_t) { (x) } )
-#define __pgprot(x)	((pgprot_t) { (x) } )
-
-extern unsigned long memory_start;
-extern unsigned long memory_end;
-
-#endif /* !__ASSEMBLY__ */
-
-#include <asm/page_offset.h>
-
-#define PAGE_OFFSET		(PAGE_OFFSET_RAW)
-
-#ifndef __ASSEMBLY__
-
-#define __pa(vaddr)		virt_to_phys(vaddr)
-#define __va(paddr)		phys_to_virt((unsigned long)paddr)
-
-#define virt_to_pfn(kaddr)	(__pa(kaddr) >> PAGE_SHIFT)
-#define pfn_to_virt(pfn)	__va((pfn) << PAGE_SHIFT)
-
-#define MAP_NR(addr)		(((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT)
-#define virt_to_page(addr)	(mem_map + (((unsigned long)(addr)-PAGE_OFFSET) >> PAGE_SHIFT))
-#define page_to_virt(page)	((((page) - mem_map) << PAGE_SHIFT) + PAGE_OFFSET)
-#define pfn_valid(page)	        (page < max_mapnr)
-
-#define ARCH_PFN_OFFSET		(PAGE_OFFSET >> PAGE_SHIFT)
-
-#define	virt_addr_valid(kaddr)	(((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
-				((void *)(kaddr) < (void *)memory_end))
-
-#endif /* __ASSEMBLY__ */
-
-#include <asm-generic/memory_model.h>
-#include <asm-generic/getorder.h>
-
-#endif /* _H8300_PAGE_H */
diff --git a/arch/h8300/include/asm/page_offset.h b/arch/h8300/include/asm/page_offset.h
deleted file mode 100644
index f8706463008c..000000000000
--- a/arch/h8300/include/asm/page_offset.h
+++ /dev/null
@@ -1,3 +0,0 @@
-
-#define PAGE_OFFSET_RAW		0x00000000
-
diff --git a/arch/h8300/include/asm/param.h b/arch/h8300/include/asm/param.h
deleted file mode 100644
index c3909e7ff178..000000000000
--- a/arch/h8300/include/asm/param.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef _H8300_PARAM_H
-#define _H8300_PARAM_H
-
-#include <uapi/asm/param.h>
-
-#define HZ		CONFIG_HZ
-#define	USER_HZ		HZ
-#define	CLOCKS_PER_SEC	(USER_HZ)
-#endif /* _H8300_PARAM_H */
diff --git a/arch/h8300/include/asm/pci.h b/arch/h8300/include/asm/pci.h
deleted file mode 100644
index 0b2acaa3dd84..000000000000
--- a/arch/h8300/include/asm/pci.h
+++ /dev/null
@@ -1,19 +0,0 @@
-#ifndef _ASM_H8300_PCI_H
-#define _ASM_H8300_PCI_H
-
-/*
- * asm-h8300/pci.h - H8/300 specific PCI declarations.
- *
- * Yoshinori Sato <ysato@users.sourceforge.jp>
- */
-
-#define pcibios_assign_all_busses()	0
-
-static inline void pcibios_penalize_isa_irq(int irq, int active)
-{
-	/* We don't do dynamic PCI IRQ allocation */
-}
-
-#define PCI_DMA_BUS_IS_PHYS	(1)
-
-#endif /* _ASM_H8300_PCI_H */
diff --git a/arch/h8300/include/asm/percpu.h b/arch/h8300/include/asm/percpu.h
deleted file mode 100644
index 72c03e3666d8..000000000000
--- a/arch/h8300/include/asm/percpu.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __ARCH_H8300_PERCPU__
-#define __ARCH_H8300_PERCPU__
-
-#include <asm-generic/percpu.h>
-
-#endif /* __ARCH_H8300_PERCPU__ */
diff --git a/arch/h8300/include/asm/pgalloc.h b/arch/h8300/include/asm/pgalloc.h
deleted file mode 100644
index c2e89a286d23..000000000000
--- a/arch/h8300/include/asm/pgalloc.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef _H8300_PGALLOC_H
-#define _H8300_PGALLOC_H
-
-#include <asm/setup.h>
-
-#define check_pgt_cache()	do { } while (0)
-
-#endif /* _H8300_PGALLOC_H */
diff --git a/arch/h8300/include/asm/pgtable.h b/arch/h8300/include/asm/pgtable.h
deleted file mode 100644
index 7ca20f894dd7..000000000000
--- a/arch/h8300/include/asm/pgtable.h
+++ /dev/null
@@ -1,73 +0,0 @@
-#ifndef _H8300_PGTABLE_H
-#define _H8300_PGTABLE_H
-
-#include <asm-generic/4level-fixup.h>
-
-#include <linux/slab.h>
-#include <asm/processor.h>
-#include <asm/page.h>
-#include <asm/io.h>
-
-#define pgd_present(pgd)     (1)       /* pages are always present on NO_MM */
-#define pgd_none(pgd)		(0)
-#define pgd_bad(pgd)		(0)
-#define pgd_clear(pgdp)
-#define kern_addr_valid(addr)	(1)
-#define	pmd_offset(a, b)	((void *)0)
-#define pmd_none(pmd)           (1)
-#define pgd_offset_k(adrdress)  ((pgd_t *)0)
-#define pte_offset_kernel(dir, address) ((pte_t *)0)
-
-#define PAGE_NONE		__pgprot(0)    /* these mean nothing to NO_MM */
-#define PAGE_SHARED		__pgprot(0)    /* these mean nothing to NO_MM */
-#define PAGE_COPY		__pgprot(0)    /* these mean nothing to NO_MM */
-#define PAGE_READONLY	__pgprot(0)    /* these mean nothing to NO_MM */
-#define PAGE_KERNEL		__pgprot(0)    /* these mean nothing to NO_MM */
-
-extern void paging_init(void);
-#define swapper_pg_dir ((pgd_t *) 0)
-
-#define __swp_type(x)		(0)
-#define __swp_offset(x)		(0)
-#define __swp_entry(typ,off)	((swp_entry_t) { ((typ) | ((off) << 7)) })
-#define __pte_to_swp_entry(pte)	((swp_entry_t) { pte_val(pte) })
-#define __swp_entry_to_pte(x)	((pte_t) { (x).val })
-
-static inline int pte_file(pte_t pte) { return 0; }
-
-/*
- * ZERO_PAGE is a global shared page that is always zero: used
- * for zero-mapped memory areas etc..
- */
-#define ZERO_PAGE(vaddr)	(virt_to_page(0))
-
-/*
- * These would be in other places but having them here reduces the diffs.
- */
-extern unsigned int kobjsize(const void *objp);
-extern int is_in_rom(unsigned long);
-
-/*
- * No page table caches to initialise
- */
-#define pgtable_cache_init()   do { } while (0)
-
-/*
- * All 32bit addresses are effectively valid for vmalloc...
- * Sort of meaningless for non-VM targets.
- */
-#define	VMALLOC_START	0
-#define	VMALLOC_END	0xffffffff
-
-/*
- * All 32bit addresses are effectively valid for vmalloc...
- * Sort of meaningless for non-VM targets.
- */
-#define	VMALLOC_START	0
-#define	VMALLOC_END	0xffffffff
-
-#define arch_enter_lazy_cpu_mode()    do {} while (0)
-
-#include <asm-generic/pgtable.h>
-
-#endif /* _H8300_PGTABLE_H */
diff --git a/arch/h8300/include/asm/processor.h b/arch/h8300/include/asm/processor.h
deleted file mode 100644
index 4b0ca49bb463..000000000000
--- a/arch/h8300/include/asm/processor.h
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * include/asm-h8300/processor.h
- *
- * Copyright (C) 2002 Yoshinori Sato
- *
- * Based on: linux/asm-m68nommu/processor.h
- *
- * Copyright (C) 1995 Hamish Macdonald
- */
-
-#ifndef __ASM_H8300_PROCESSOR_H
-#define __ASM_H8300_PROCESSOR_H
-
-/*
- * Default implementation of macro that returns current
- * instruction pointer ("program counter").
- */
-#define current_text_addr() ({ __label__ _l; _l: &&_l;})
-
-#include <linux/compiler.h>
-#include <asm/segment.h>
-#include <asm/fpu.h>
-#include <asm/ptrace.h>
-#include <asm/current.h>
-
-static inline unsigned long rdusp(void) {
-	extern unsigned int	sw_usp;
-	return(sw_usp);
-}
-
-static inline void wrusp(unsigned long usp) {
-	extern unsigned int	sw_usp;
-	sw_usp = usp;
-}
-
-/*
- * User space process size: 3.75GB. This is hardcoded into a few places,
- * so don't change it unless you know what you are doing.
- */
-#define TASK_SIZE	(0xFFFFFFFFUL)
-
-#ifdef __KERNEL__
-#define STACK_TOP	TASK_SIZE
-#define STACK_TOP_MAX	STACK_TOP
-#endif
-
-/*
- * This decides where the kernel will search for a free chunk of vm
- * space during mmap's. We won't be using it
- */
-#define TASK_UNMAPPED_BASE	0
-
-struct thread_struct {
-	unsigned long  ksp;		/* kernel stack pointer */
-	unsigned long  usp;		/* user stack pointer */
-	unsigned long  ccr;		/* saved status register */
-	unsigned long  esp0;            /* points to SR of stack frame */
-	struct {
-		unsigned short *addr;
-		unsigned short inst;
-	} breakinfo;
-};
-
-#define INIT_THREAD  {						\
-	.ksp  = sizeof(init_stack) + (unsigned long)init_stack, \
-	.usp  = 0,						\
-	.ccr  = PS_S,						\
-	.esp0 = 0,						\
-	.breakinfo = {						\
-		.addr = (unsigned short *)-1,			\
-		.inst = 0					\
-	}							\
-}
-
-/*
- * Do necessary setup to start up a newly executed thread.
- *
- * pass the data segment into user programs if it exists,
- * it can't hurt anything as far as I can tell
- */
-#if defined(__H8300H__)
-#define start_thread(_regs, _pc, _usp)			        \
-do {							        \
-  	(_regs)->pc = (_pc);				        \
-	(_regs)->ccr = 0x00;	   /* clear all flags */        \
-	(_regs)->er5 = current->mm->start_data;	/* GOT base */  \
-	wrusp((unsigned long)(_usp) - sizeof(unsigned long)*3);	\
-} while(0)
-#endif
-#if defined(__H8300S__)
-#define start_thread(_regs, _pc, _usp)			        \
-do {							        \
-	(_regs)->pc = (_pc);				        \
-	(_regs)->ccr = 0x00;	   /* clear kernel flag */      \
-	(_regs)->exr = 0x78;       /* enable all interrupts */  \
-	(_regs)->er5 = current->mm->start_data;	/* GOT base */  \
-	/* 14 = space for retaddr(4), vector(4), er0(4) and ext(2) on stack */ \
-	wrusp(((unsigned long)(_usp)) - 14);                    \
-} while(0)
-#endif
-
-/* Forward declaration, a strange C thing */
-struct task_struct;
-
-/* Free all resources held by a thread. */
-static inline void release_thread(struct task_struct *dead_task)
-{
-}
-
-/*
- * Free current thread data structures etc..
- */
-static inline void exit_thread(void)
-{
-}
-
-/*
- * Return saved PC of a blocked thread.
- */
-unsigned long thread_saved_pc(struct task_struct *tsk);
-unsigned long get_wchan(struct task_struct *p);
-
-#define	KSTK_EIP(tsk)	\
-    ({			\
-	unsigned long eip = 0;	 \
-	if ((tsk)->thread.esp0 > PAGE_SIZE && \
-	    MAP_NR((tsk)->thread.esp0) < max_mapnr) \
-	      eip = ((struct pt_regs *) (tsk)->thread.esp0)->pc; \
-	eip; })
-#define	KSTK_ESP(tsk)	((tsk) == current ? rdusp() : (tsk)->thread.usp)
-
-#define cpu_relax()    barrier()
-
-#define HARD_RESET_NOW() ({		\
-        local_irq_disable();		\
-        asm("jmp @@0");			\
-})
-
-#endif
diff --git a/arch/h8300/include/asm/ptrace.h b/arch/h8300/include/asm/ptrace.h
deleted file mode 100644
index c1826b95c5ca..000000000000
--- a/arch/h8300/include/asm/ptrace.h
+++ /dev/null
@@ -1,33 +0,0 @@
-#ifndef _H8300_PTRACE_H
-#define _H8300_PTRACE_H
-
-#include <uapi/asm/ptrace.h>
-
-#ifndef __ASSEMBLY__
-#if defined(CONFIG_CPU_H8S)
-#endif
-#ifndef PS_S
-#define PS_S  (0x10)
-#endif
-
-#if defined(__H8300H__)
-#define H8300_REGS_NO 11
-#endif
-#if defined(__H8300S__)
-#define H8300_REGS_NO 12
-#endif
-
-/* Find the stack offset for a register, relative to thread.esp0. */
-#define PT_REG(reg)	((long)&((struct pt_regs *)0)->reg)
-
-#define arch_has_single_step()	(1)
-
-#define user_mode(regs) (!((regs)->ccr & PS_S))
-#define instruction_pointer(regs) ((regs)->pc)
-#define profile_pc(regs) instruction_pointer(regs)
-#define current_pt_regs() ((struct pt_regs *) \
-	(THREAD_SIZE + (unsigned long)current_thread_info()) - 1)
-#define signal_pt_regs() ((struct pt_regs *)current->thread.esp0)
-#define current_user_stack_pointer() rdusp()
-#endif /* __ASSEMBLY__ */
-#endif /* _H8300_PTRACE_H */
diff --git a/arch/h8300/include/asm/regs267x.h b/arch/h8300/include/asm/regs267x.h
deleted file mode 100644
index 1bff731a9f77..000000000000
--- a/arch/h8300/include/asm/regs267x.h
+++ /dev/null
@@ -1,336 +0,0 @@
-/* internal Peripherals Register address define */
-/* CPU: H8/306x                                 */
-
-#if !defined(__REGS_H8S267x__)
-#define __REGS_H8S267x__ 
-
-#if defined(__KERNEL__)
-
-#define DASTCR 0xFEE01A
-#define DADR0  0xFFFFA4
-#define DADR1  0xFFFFA5
-#define DACR01 0xFFFFA6
-#define DADR2  0xFFFFA8
-#define DADR3  0xFFFFA9
-#define DACR23 0xFFFFAA
-
-#define ADDRA  0xFFFF90
-#define ADDRAH 0xFFFF90
-#define ADDRAL 0xFFFF91
-#define ADDRB  0xFFFF92
-#define ADDRBH 0xFFFF92
-#define ADDRBL 0xFFFF93
-#define ADDRC  0xFFFF94
-#define ADDRCH 0xFFFF94
-#define ADDRCL 0xFFFF95
-#define ADDRD  0xFFFF96
-#define ADDRDH 0xFFFF96
-#define ADDRDL 0xFFFF97
-#define ADDRE  0xFFFF98
-#define ADDREH 0xFFFF98
-#define ADDREL 0xFFFF99
-#define ADDRF  0xFFFF9A
-#define ADDRFH 0xFFFF9A
-#define ADDRFL 0xFFFF9B
-#define ADDRG  0xFFFF9C
-#define ADDRGH 0xFFFF9C
-#define ADDRGL 0xFFFF9D
-#define ADDRH  0xFFFF9E
-#define ADDRHH 0xFFFF9E
-#define ADDRHL 0xFFFF9F
-
-#define ADCSR  0xFFFFA0
-#define ADCR   0xFFFFA1
-
-#define ABWCR  0xFFFEC0
-#define ASTCR  0xFFFEC1
-#define WTCRAH 0xFFFEC2
-#define WTCRAL 0xFFFEC3
-#define WTCRBH 0xFFFEC4
-#define WTCRBL 0xFFFEC5
-#define RDNCR  0xFFFEC6
-#define CSACRH 0xFFFEC8
-#define CSACRL 0xFFFEC9
-#define BROMCRH 0xFFFECA
-#define BROMCRL 0xFFFECB
-#define BCR    0xFFFECC
-#define DRAMCR 0xFFFED0
-#define DRACCR 0xFFFED2
-#define REFCR  0xFFFED4
-#define RTCNT  0xFFFED6
-#define RTCOR  0xFFFED7
-
-#define MAR0AH  0xFFFEE0
-#define MAR0AL  0xFFFEE2
-#define IOAR0A  0xFFFEE4
-#define ETCR0A  0xFFFEE6
-#define MAR0BH  0xFFFEE8
-#define MAR0BL  0xFFFEEA
-#define IOAR0B  0xFFFEEC
-#define ETCR0B  0xFFFEEE
-#define MAR1AH  0xFFFEF0
-#define MAR1AL  0xFFFEF2
-#define IOAR1A  0xFFFEF4
-#define ETCR1A  0xFFFEF6
-#define MAR1BH  0xFFFEF8
-#define MAR1BL  0xFFFEFA
-#define IOAR1B  0xFFFEFC
-#define ETCR1B  0xFFFEFE
-#define DMAWER  0xFFFF20
-#define DMATCR  0xFFFF21
-#define DMACR0A 0xFFFF22
-#define DMACR0B 0xFFFF23
-#define DMACR1A 0xFFFF24
-#define DMACR1B 0xFFFF25
-#define DMABCRH 0xFFFF26
-#define DMABCRL 0xFFFF27
-
-#define EDSAR0  0xFFFDC0
-#define EDDAR0  0xFFFDC4
-#define EDTCR0  0xFFFDC8
-#define EDMDR0  0xFFFDCC
-#define EDMDR0H 0xFFFDCC
-#define EDMDR0L 0xFFFDCD
-#define EDACR0  0xFFFDCE
-#define EDSAR1  0xFFFDD0
-#define EDDAR1  0xFFFDD4
-#define EDTCR1  0xFFFDD8
-#define EDMDR1  0xFFFDDC
-#define EDMDR1H 0xFFFDDC
-#define EDMDR1L 0xFFFDDD
-#define EDACR1  0xFFFDDE
-#define EDSAR2  0xFFFDE0
-#define EDDAR2  0xFFFDE4
-#define EDTCR2  0xFFFDE8
-#define EDMDR2  0xFFFDEC
-#define EDMDR2H 0xFFFDEC
-#define EDMDR2L 0xFFFDED
-#define EDACR2  0xFFFDEE
-#define EDSAR3  0xFFFDF0
-#define EDDAR3  0xFFFDF4
-#define EDTCR3  0xFFFDF8
-#define EDMDR3  0xFFFDFC
-#define EDMDR3H 0xFFFDFC
-#define EDMDR3L 0xFFFDFD
-#define EDACR3  0xFFFDFE
-
-#define IPRA  0xFFFE00
-#define IPRB  0xFFFE02
-#define IPRC  0xFFFE04
-#define IPRD  0xFFFE06
-#define IPRE  0xFFFE08
-#define IPRF  0xFFFE0A
-#define IPRG  0xFFFE0C
-#define IPRH  0xFFFE0E
-#define IPRI  0xFFFE10
-#define IPRJ  0xFFFE12
-#define IPRK  0xFFFE14
-#define ITSR  0xFFFE16
-#define SSIER 0xFFFE18
-#define ISCRH 0xFFFE1A
-#define ISCRL 0xFFFE1C
-
-#define INTCR 0xFFFF31
-#define IER   0xFFFF32
-#define IERH  0xFFFF32
-#define IERL  0xFFFF33
-#define ISR   0xFFFF34
-#define ISRH  0xFFFF34
-#define ISRL  0xFFFF35
-
-#define P1DDR 0xFFFE20
-#define P2DDR 0xFFFE21
-#define P3DDR 0xFFFE22
-#define P4DDR 0xFFFE23
-#define P5DDR 0xFFFE24
-#define P6DDR 0xFFFE25
-#define P7DDR 0xFFFE26
-#define P8DDR 0xFFFE27
-#define P9DDR 0xFFFE28
-#define PADDR 0xFFFE29
-#define PBDDR 0xFFFE2A
-#define PCDDR 0xFFFE2B
-#define PDDDR 0xFFFE2C
-#define PEDDR 0xFFFE2D
-#define PFDDR 0xFFFE2E
-#define PGDDR 0xFFFE2F
-#define PHDDR 0xFFFF74
-
-#define PFCR0 0xFFFE32
-#define PFCR1 0xFFFE33
-#define PFCR2 0xFFFE34
-
-#define PAPCR 0xFFFE36
-#define PBPCR 0xFFFE37
-#define PCPCR 0xFFFE38
-#define PDPCR 0xFFFE39
-#define PEPCR 0xFFFE3A
-
-#define P3ODR 0xFFFE3C
-#define PAODR 0xFFFE3D
-
-#define P1DR  0xFFFF60
-#define P2DR  0xFFFF61
-#define P3DR  0xFFFF62
-#define P4DR  0xFFFF63
-#define P5DR  0xFFFF64
-#define P6DR  0xFFFF65
-#define P7DR  0xFFFF66
-#define P8DR  0xFFFF67
-#define P9DR  0xFFFF68
-#define PADR  0xFFFF69
-#define PBDR  0xFFFF6A
-#define PCDR  0xFFFF6B
-#define PDDR  0xFFFF6C
-#define PEDR  0xFFFF6D
-#define PFDR  0xFFFF6E
-#define PGDR  0xFFFF6F
-#define PHDR  0xFFFF72
-
-#define PORT1 0xFFFF50
-#define PORT2 0xFFFF51
-#define PORT3 0xFFFF52
-#define PORT4 0xFFFF53
-#define PORT5 0xFFFF54
-#define PORT6 0xFFFF55
-#define PORT7 0xFFFF56
-#define PORT8 0xFFFF57
-#define PORT9 0xFFFF58
-#define PORTA 0xFFFF59
-#define PORTB 0xFFFF5A
-#define PORTC 0xFFFF5B
-#define PORTD 0xFFFF5C
-#define PORTE 0xFFFF5D
-#define PORTF 0xFFFF5E
-#define PORTG 0xFFFF5F
-#define PORTH 0xFFFF70
-
-#define PCR   0xFFFF46
-#define PMR   0xFFFF47
-#define NDERH 0xFFFF48
-#define NDERL 0xFFFF49
-#define PODRH 0xFFFF4A
-#define PODRL 0xFFFF4B
-#define NDRH1 0xFFFF4C
-#define NDRL1 0xFFFF4D
-#define NDRH2 0xFFFF4E
-#define NDRL2 0xFFFF4F
-
-#define SMR0  0xFFFF78
-#define BRR0  0xFFFF79
-#define SCR0  0xFFFF7A
-#define TDR0  0xFFFF7B
-#define SSR0  0xFFFF7C
-#define RDR0  0xFFFF7D
-#define SCMR0 0xFFFF7E
-#define SMR1  0xFFFF80
-#define BRR1  0xFFFF81
-#define SCR1  0xFFFF82
-#define TDR1  0xFFFF83
-#define SSR1  0xFFFF84
-#define RDR1  0xFFFF85
-#define SCMR1 0xFFFF86
-#define SMR2  0xFFFF88
-#define BRR2  0xFFFF89
-#define SCR2  0xFFFF8A
-#define TDR2  0xFFFF8B
-#define SSR2  0xFFFF8C
-#define RDR2  0xFFFF8D
-#define SCMR2 0xFFFF8E
-
-#define IRCR0 0xFFFE1E
-#define SEMR  0xFFFDA8
-
-#define MDCR    0xFFFF3E
-#define SYSCR   0xFFFF3D
-#define MSTPCRH 0xFFFF40
-#define MSTPCRL 0xFFFF41
-#define FLMCR1  0xFFFFC8
-#define FLMCR2  0xFFFFC9
-#define EBR1    0xFFFFCA
-#define EBR2    0xFFFFCB
-#define CTGARC_RAMCR   0xFFFECE
-#define SBYCR   0xFFFF3A
-#define SCKCR   0xFFFF3B
-#define PLLCR   0xFFFF45
-
-#define TSTR   0xFFFFC0
-#define TSNC   0XFFFFC1
-
-#define TCR0   0xFFFFD0
-#define TMDR0  0xFFFFD1
-#define TIORH0 0xFFFFD2
-#define TIORL0 0xFFFFD3
-#define TIER0  0xFFFFD4
-#define TSR0   0xFFFFD5
-#define TCNT0  0xFFFFD6
-#define GRA0   0xFFFFD8
-#define GRB0   0xFFFFDA
-#define GRC0   0xFFFFDC
-#define GRD0   0xFFFFDE
-#define TCR1   0xFFFFE0
-#define TMDR1  0xFFFFE1
-#define TIORH1 0xFFFFE2
-#define TIORL1 0xFFFFE3
-#define TIER1  0xFFFFE4
-#define TSR1   0xFFFFE5
-#define TCNT1  0xFFFFE6
-#define GRA1   0xFFFFE8
-#define GRB1   0xFFFFEA
-#define TCR2   0xFFFFF0
-#define TMDR2  0xFFFFF1
-#define TIORH2 0xFFFFF2
-#define TIORL2 0xFFFFF3
-#define TIER2  0xFFFFF4
-#define TSR2   0xFFFFF5
-#define TCNT2  0xFFFFF6
-#define GRA2   0xFFFFF8
-#define GRB2   0xFFFFFA
-#define TCR3   0xFFFE80
-#define TMDR3  0xFFFE81
-#define TIORH3 0xFFFE82
-#define TIORL3 0xFFFE83
-#define TIER3  0xFFFE84
-#define TSR3   0xFFFE85
-#define TCNT3  0xFFFE86
-#define GRA3   0xFFFE88
-#define GRB3   0xFFFE8A
-#define GRC3   0xFFFE8C
-#define GRD3   0xFFFE8E
-#define TCR4   0xFFFE90
-#define TMDR4  0xFFFE91
-#define TIORH4 0xFFFE92
-#define TIORL4 0xFFFE93
-#define TIER4  0xFFFE94
-#define TSR4   0xFFFE95
-#define TCNT4  0xFFFE96
-#define GRA4   0xFFFE98
-#define GRB4   0xFFFE9A
-#define TCR5   0xFFFEA0
-#define TMDR5  0xFFFEA1
-#define TIORH5 0xFFFEA2
-#define TIORL5 0xFFFEA3
-#define TIER5  0xFFFEA4
-#define TSR5   0xFFFEA5
-#define TCNT5  0xFFFEA6
-#define GRA5   0xFFFEA8
-#define GRB5   0xFFFEAA
-
-#define _8TCR0   0xFFFFB0
-#define _8TCR1   0xFFFFB1
-#define _8TCSR0  0xFFFFB2
-#define _8TCSR1  0xFFFFB3
-#define _8TCORA0 0xFFFFB4
-#define _8TCORA1 0xFFFFB5
-#define _8TCORB0 0xFFFFB6
-#define _8TCORB1 0xFFFFB7
-#define _8TCNT0  0xFFFFB8
-#define _8TCNT1  0xFFFFB9
-
-#define TCSR    0xFFFFBC
-#define TCNT    0xFFFFBD
-#define RSTCSRW 0xFFFFBE
-#define RSTCSRR 0xFFFFBF
-
-#endif /* __KERNEL__ */
-#endif /* __REGS_H8S267x__ */
diff --git a/arch/h8300/include/asm/regs306x.h b/arch/h8300/include/asm/regs306x.h
deleted file mode 100644
index 027dd633fa25..000000000000
--- a/arch/h8300/include/asm/regs306x.h
+++ /dev/null
@@ -1,212 +0,0 @@
-/* internal Peripherals Register address define */
-/* CPU: H8/306x                                 */
-
-#if !defined(__REGS_H8306x__)
-#define __REGS_H8306x__ 
-
-#if defined(__KERNEL__)
-
-#define DASTCR 0xFEE01A
-#define DADR0  0xFEE09C
-#define DADR1  0xFEE09D
-#define DACR   0xFEE09E
-
-#define ADDRAH 0xFFFFE0
-#define ADDRAL 0xFFFFE1
-#define ADDRBH 0xFFFFE2
-#define ADDRBL 0xFFFFE3
-#define ADDRCH 0xFFFFE4
-#define ADDRCL 0xFFFFE5
-#define ADDRDH 0xFFFFE6
-#define ADDRDL 0xFFFFE7
-#define ADCSR  0xFFFFE8
-#define ADCR   0xFFFFE9
-
-#define BRCR   0xFEE013
-#define ADRCR  0xFEE01E
-#define CSCR   0xFEE01F
-#define ABWCR  0xFEE020
-#define ASTCR  0xFEE021
-#define WCRH   0xFEE022
-#define WCRL   0xFEE023
-#define BCR    0xFEE024
-#define DRCRA  0xFEE026
-#define DRCRB  0xFEE027
-#define RTMCSR 0xFEE028
-#define RTCNT  0xFEE029
-#define RTCOR  0xFEE02A
-
-#define MAR0AR  0xFFFF20
-#define MAR0AE  0xFFFF21
-#define MAR0AH  0xFFFF22
-#define MAR0AL  0xFFFF23
-#define ETCR0AL 0xFFFF24
-#define ETCR0AH 0xFFFF25
-#define IOAR0A  0xFFFF26
-#define DTCR0A  0xFFFF27
-#define MAR0BR  0xFFFF28
-#define MAR0BE  0xFFFF29
-#define MAR0BH  0xFFFF2A
-#define MAR0BL  0xFFFF2B
-#define ETCR0BL 0xFFFF2C
-#define ETCR0BH 0xFFFF2D
-#define IOAR0B  0xFFFF2E
-#define DTCR0B  0xFFFF2F
-#define MAR1AR  0xFFFF30
-#define MAR1AE  0xFFFF31
-#define MAR1AH  0xFFFF32
-#define MAR1AL  0xFFFF33
-#define ETCR1AL 0xFFFF34
-#define ETCR1AH 0xFFFF35
-#define IOAR1A  0xFFFF36
-#define DTCR1A  0xFFFF37
-#define MAR1BR  0xFFFF38
-#define MAR1BE  0xFFFF39
-#define MAR1BH  0xFFFF3A
-#define MAR1BL  0xFFFF3B
-#define ETCR1BL 0xFFFF3C
-#define ETCR1BH 0xFFFF3D
-#define IOAR1B  0xFFFF3E
-#define DTCR1B  0xFFFF3F
-
-#define ISCR 0xFEE014
-#define IER  0xFEE015
-#define ISR  0xFEE016
-#define IPRA 0xFEE018
-#define IPRB 0xFEE019
-
-#define P1DDR 0xFEE000
-#define P2DDR 0xFEE001
-#define P3DDR 0xFEE002
-#define P4DDR 0xFEE003
-#define P5DDR 0xFEE004
-#define P6DDR 0xFEE005
-/*#define P7DDR 0xFEE006*/
-#define P8DDR 0xFEE007
-#define P9DDR 0xFEE008
-#define PADDR 0xFEE009
-#define PBDDR 0xFEE00A
-
-#define P1DR  0xFFFFD0
-#define P2DR  0xFFFFD1
-#define P3DR  0xFFFFD2
-#define P4DR  0xFFFFD3
-#define P5DR  0xFFFFD4
-#define P6DR  0xFFFFD5
-/*#define P7DR  0xFFFFD6*/
-#define P8DR  0xFFFFD7
-#define P9DR  0xFFFFD8
-#define PADR  0xFFFFD9
-#define PBDR  0xFFFFDA
-
-#define P2CR  0xFEE03C
-#define P4CR  0xFEE03E
-#define P5CR  0xFEE03F
-
-#define SMR0  0xFFFFB0
-#define BRR0  0xFFFFB1
-#define SCR0  0xFFFFB2
-#define TDR0  0xFFFFB3
-#define SSR0  0xFFFFB4
-#define RDR0  0xFFFFB5
-#define SCMR0 0xFFFFB6
-#define SMR1  0xFFFFB8
-#define BRR1  0xFFFFB9
-#define SCR1  0xFFFFBA
-#define TDR1  0xFFFFBB
-#define SSR1  0xFFFFBC
-#define RDR1  0xFFFFBD
-#define SCMR1 0xFFFFBE
-#define SMR2  0xFFFFC0
-#define BRR2  0xFFFFC1
-#define SCR2  0xFFFFC2
-#define TDR2  0xFFFFC3
-#define SSR2  0xFFFFC4
-#define RDR2  0xFFFFC5
-#define SCMR2 0xFFFFC6
-
-#define MDCR   0xFEE011
-#define SYSCR  0xFEE012
-#define DIVCR  0xFEE01B
-#define MSTCRH 0xFEE01C
-#define MSTCRL 0xFEE01D
-#define FLMCR1 0xFEE030
-#define FLMCR2 0xFEE031
-#define EBR1   0xFEE032
-#define EBR2   0xFEE033
-#define RAMCR  0xFEE077
-
-#define TSTR   0xFFFF60
-#define TSNC   0XFFFF61
-#define TMDR   0xFFFF62
-#define TOLR   0xFFFF63
-#define TISRA  0xFFFF64
-#define TISRB  0xFFFF65
-#define TISRC  0xFFFF66
-#define TCR0   0xFFFF68
-#define TIOR0  0xFFFF69
-#define TCNT0H 0xFFFF6A
-#define TCNT0L 0xFFFF6B
-#define GRA0H  0xFFFF6C
-#define GRA0L  0xFFFF6D
-#define GRB0H  0xFFFF6E
-#define GRB0L  0xFFFF6F
-#define TCR1   0xFFFF70
-#define TIOR1  0xFFFF71
-#define TCNT1H 0xFFFF72
-#define TCNT1L 0xFFFF73
-#define GRA1H  0xFFFF74
-#define GRA1L  0xFFFF75
-#define GRB1H  0xFFFF76
-#define GRB1L  0xFFFF77
-#define TCR3   0xFFFF78
-#define TIOR3  0xFFFF79
-#define TCNT3H 0xFFFF7A
-#define TCNT3L 0xFFFF7B
-#define GRA3H  0xFFFF7C
-#define GRA3L  0xFFFF7D
-#define GRB3H  0xFFFF7E
-#define GRB3L  0xFFFF7F
-
-#define _8TCR0  0xFFFF80
-#define _8TCR1  0xFFFF81
-#define _8TCSR0 0xFFFF82
-#define _8TCSR1 0xFFFF83
-#define TCORA0 0xFFFF84
-#define TCORA1 0xFFFF85
-#define TCORB0 0xFFFF86
-#define TCORB1 0xFFFF87
-#define _8TCNT0 0xFFFF88
-#define _8TCNT1 0xFFFF89
-
-#define _8TCR2  0xFFFF90
-#define _8TCR3  0xFFFF91
-#define _8TCSR2 0xFFFF92
-#define _8TCSR3 0xFFFF93
-#define TCORA2 0xFFFF94
-#define TCORA3 0xFFFF95
-#define TCORB2 0xFFFF96
-#define TCORB3 0xFFFF97
-#define _8TCNT2 0xFFFF98
-#define _8TCNT3 0xFFFF99
-
-#define TCSR   0xFFFF8C
-#define TCNT   0xFFFF8D
-#define RSTCSR 0xFFFF8F
-
-#define TPMR  0xFFFFA0
-#define TPCR  0xFFFFA1
-#define NDERB 0xFFFFA2
-#define NDERA 0xFFFFA3
-#define NDRB1 0xFFFFA4
-#define NDRA1 0xFFFFA5
-#define NDRB2 0xFFFFA6
-#define NDRA2 0xFFFFA7
-
-#define TCSR    0xFFFF8C
-#define TCNT    0xFFFF8D
-#define RSTCSRW 0xFFFF8E
-#define RSTCSRR 0xFFFF8F
-
-#endif /* __KERNEL__ */
-#endif /* __REGS_H8306x__ */
diff --git a/arch/h8300/include/asm/scatterlist.h b/arch/h8300/include/asm/scatterlist.h
deleted file mode 100644
index 82130eda0e5f..000000000000
--- a/arch/h8300/include/asm/scatterlist.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _H8300_SCATTERLIST_H
-#define _H8300_SCATTERLIST_H
-
-#include <asm-generic/scatterlist.h>
-
-#endif /* !(_H8300_SCATTERLIST_H) */
diff --git a/arch/h8300/include/asm/sections.h b/arch/h8300/include/asm/sections.h
deleted file mode 100644
index a81743e8b743..000000000000
--- a/arch/h8300/include/asm/sections.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _H8300_SECTIONS_H_
-#define _H8300_SECTIONS_H_
-
-#include <asm-generic/sections.h>
-
-#endif
diff --git a/arch/h8300/include/asm/segment.h b/arch/h8300/include/asm/segment.h
deleted file mode 100644
index b79a82d0f99d..000000000000
--- a/arch/h8300/include/asm/segment.h
+++ /dev/null
@@ -1,49 +0,0 @@
-#ifndef _H8300_SEGMENT_H
-#define _H8300_SEGMENT_H
-
-/* define constants */
-#define USER_DATA     (1)
-#ifndef __USER_DS
-#define __USER_DS     (USER_DATA)
-#endif
-#define USER_PROGRAM  (2)
-#define SUPER_DATA    (3)
-#ifndef __KERNEL_DS
-#define __KERNEL_DS   (SUPER_DATA)
-#endif
-#define SUPER_PROGRAM (4)
-
-#ifndef __ASSEMBLY__
-
-typedef struct {
-	unsigned long seg;
-} mm_segment_t;
-
-#define MAKE_MM_SEG(s)	((mm_segment_t) { (s) })
-#define USER_DS		MAKE_MM_SEG(__USER_DS)
-#define KERNEL_DS	MAKE_MM_SEG(__KERNEL_DS)
-
-/*
- * Get/set the SFC/DFC registers for MOVES instructions
- */
-
-static inline mm_segment_t get_fs(void)
-{
-    return USER_DS;
-}
-
-static inline mm_segment_t get_ds(void)
-{
-    /* return the supervisor data space code */
-    return KERNEL_DS;
-}
-
-static inline void set_fs(mm_segment_t val)
-{
-}
-
-#define segment_eq(a,b)	((a).seg == (b).seg)
-
-#endif /* __ASSEMBLY__ */
-
-#endif /* _H8300_SEGMENT_H */
diff --git a/arch/h8300/include/asm/sh_bios.h b/arch/h8300/include/asm/sh_bios.h
deleted file mode 100644
index b6bb6e58295c..000000000000
--- a/arch/h8300/include/asm/sh_bios.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/* eCos HAL interface header */
-
-#ifndef SH_BIOS_H
-#define SH_BIOS_H
-
-#define HAL_IF_VECTOR_TABLE 0xfffe20
-#define CALL_IF_SET_CONSOLE_COMM  13
-#define QUERY_CURRENT -1
-#define MANGLER       -3
-
-/* Checking for GDB stub active */
-/* suggestion Jonathan Larmour */
-static int sh_bios_in_gdb_mode(void)
-{
-	static int gdb_active = -1;
-	if (gdb_active == -1) {
-		int (*set_console_comm)(int);
-		set_console_comm = ((void **)HAL_IF_VECTOR_TABLE)[CALL_IF_SET_CONSOLE_COMM];
-		gdb_active = (set_console_comm(QUERY_CURRENT) == MANGLER);
-	}
-	return gdb_active;
-}
-
-static void sh_bios_gdb_detach(void)
-{
-
-}
-
-#endif
diff --git a/arch/h8300/include/asm/shm.h b/arch/h8300/include/asm/shm.h
deleted file mode 100644
index ed6623c0545d..000000000000
--- a/arch/h8300/include/asm/shm.h
+++ /dev/null
@@ -1,31 +0,0 @@
-#ifndef _H8300_SHM_H
-#define _H8300_SHM_H
-
-
-/* format of page table entries that correspond to shared memory pages
-   currently out in swap space (see also mm/swap.c):
-   bits 0-1 (PAGE_PRESENT) is  = 0
-   bits 8..2 (SWP_TYPE) are = SHM_SWP_TYPE
-   bits 31..9 are used like this:
-   bits 15..9 (SHM_ID) the id of the shared memory segment
-   bits 30..16 (SHM_IDX) the index of the page within the shared memory segment
-                    (actually only bits 25..16 get used since SHMMAX is so low)
-   bit 31 (SHM_READ_ONLY) flag whether the page belongs to a read-only attach
-*/
-/* on the m68k both bits 0 and 1 must be zero */
-/* format on the sun3 is similar, but bits 30, 31 are set to zero and all
-   others are reduced by 2. --m */
-
-#ifndef CONFIG_SUN3
-#define SHM_ID_SHIFT	9
-#else
-#define SHM_ID_SHIFT	7
-#endif
-#define _SHM_ID_BITS	7
-#define SHM_ID_MASK	((1<<_SHM_ID_BITS)-1)
-
-#define SHM_IDX_SHIFT	(SHM_ID_SHIFT+_SHM_ID_BITS)
-#define _SHM_IDX_BITS	15
-#define SHM_IDX_MASK	((1<<_SHM_IDX_BITS)-1)
-
-#endif /* _H8300_SHM_H */
diff --git a/arch/h8300/include/asm/shmparam.h b/arch/h8300/include/asm/shmparam.h
deleted file mode 100644
index d1863953ec64..000000000000
--- a/arch/h8300/include/asm/shmparam.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _H8300_SHMPARAM_H
-#define _H8300_SHMPARAM_H
-
-#define	SHMLBA PAGE_SIZE		 /* attach addr a multiple of this */
-
-#endif /* _H8300_SHMPARAM_H */
diff --git a/arch/h8300/include/asm/signal.h b/arch/h8300/include/asm/signal.h
deleted file mode 100644
index 6341e36386f8..000000000000
--- a/arch/h8300/include/asm/signal.h
+++ /dev/null
@@ -1,24 +0,0 @@
-#ifndef _H8300_SIGNAL_H
-#define _H8300_SIGNAL_H
-
-#include <uapi/asm/signal.h>
-
-/* Most things should be clean enough to redefine this at will, if care
-   is taken to make libc match.  */
-
-#define _NSIG		64
-#define _NSIG_BPW	32
-#define _NSIG_WORDS	(_NSIG / _NSIG_BPW)
-
-typedef unsigned long old_sigset_t;		/* at least 32 bits */
-
-typedef struct {
-	unsigned long sig[_NSIG_WORDS];
-} sigset_t;
-
-#define __ARCH_HAS_SA_RESTORER
-
-#include <asm/sigcontext.h>
-#undef __HAVE_ARCH_SIG_BITOPS
-
-#endif /* _H8300_SIGNAL_H */
diff --git a/arch/h8300/include/asm/smp.h b/arch/h8300/include/asm/smp.h
deleted file mode 100644
index 9e9bd7e58922..000000000000
--- a/arch/h8300/include/asm/smp.h
+++ /dev/null
@@ -1 +0,0 @@
-/* nothing required here yet */
diff --git a/arch/h8300/include/asm/spinlock.h b/arch/h8300/include/asm/spinlock.h
deleted file mode 100644
index d5407fa173e4..000000000000
--- a/arch/h8300/include/asm/spinlock.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __H8300_SPINLOCK_H
-#define __H8300_SPINLOCK_H
-
-#error "H8/300 doesn't do SMP yet"
-
-#endif
diff --git a/arch/h8300/include/asm/string.h b/arch/h8300/include/asm/string.h
deleted file mode 100644
index ca5034897d87..000000000000
--- a/arch/h8300/include/asm/string.h
+++ /dev/null
@@ -1,44 +0,0 @@
-#ifndef _H8300_STRING_H_
-#define _H8300_STRING_H_
-
-#ifdef __KERNEL__ /* only set these up for kernel code */
-
-#include <asm/setup.h>
-#include <asm/page.h>
-
-#define __HAVE_ARCH_MEMSET
-extern void * memset(void * s, int c, size_t count);
-
-#define __HAVE_ARCH_MEMCPY
-extern void * memcpy(void *d, const void *s, size_t count);
-
-#else /* KERNEL */
-
-/*
- *	let user libraries deal with these,
- *	IMHO the kernel has no place defining these functions for user apps
- */
-
-#define __HAVE_ARCH_STRCPY 1
-#define __HAVE_ARCH_STRNCPY 1
-#define __HAVE_ARCH_STRCAT 1
-#define __HAVE_ARCH_STRNCAT 1
-#define __HAVE_ARCH_STRCMP 1
-#define __HAVE_ARCH_STRNCMP 1
-#define __HAVE_ARCH_STRNICMP 1
-#define __HAVE_ARCH_STRCHR 1
-#define __HAVE_ARCH_STRRCHR 1
-#define __HAVE_ARCH_STRSTR 1
-#define __HAVE_ARCH_STRLEN 1
-#define __HAVE_ARCH_STRNLEN 1
-#define __HAVE_ARCH_MEMSET 1
-#define __HAVE_ARCH_MEMCPY 1
-#define __HAVE_ARCH_MEMMOVE 1
-#define __HAVE_ARCH_MEMSCAN 1
-#define __HAVE_ARCH_MEMCMP 1
-#define __HAVE_ARCH_MEMCHR 1
-#define __HAVE_ARCH_STRTOK 1
-
-#endif /* KERNEL */
-
-#endif /* _M68K_STRING_H_ */
diff --git a/arch/h8300/include/asm/switch_to.h b/arch/h8300/include/asm/switch_to.h
deleted file mode 100644
index cdd8731ce487..000000000000
--- a/arch/h8300/include/asm/switch_to.h
+++ /dev/null
@@ -1,50 +0,0 @@
-#ifndef _H8300_SWITCH_TO_H
-#define _H8300_SWITCH_TO_H
-
-/*
- * switch_to(n) should switch tasks to task ptr, first checking that
- * ptr isn't the current task, in which case it does nothing.  This
- * also clears the TS-flag if the task we switched to has used the
- * math co-processor latest.
- */
-/*
- * switch_to() saves the extra registers, that are not saved
- * automatically by SAVE_SWITCH_STACK in resume(), ie. d0-d5 and
- * a0-a1. Some of these are used by schedule() and its predecessors
- * and so we might get see unexpected behaviors when a task returns
- * with unexpected register values.
- *
- * syscall stores these registers itself and none of them are used
- * by syscall after the function in the syscall has been called.
- *
- * Beware that resume now expects *next to be in d1 and the offset of
- * tss to be in a1. This saves a few instructions as we no longer have
- * to push them onto the stack and read them back right after.
- *
- * 02/17/96 - Jes Sorensen (jds@kom.auc.dk)
- *
- * Changed 96/09/19 by Andreas Schwab
- * pass prev in a0, next in a1, offset of tss in d1, and whether
- * the mm structures are shared in d2 (to avoid atc flushing).
- *
- * H8/300 Porting 2002/09/04 Yoshinori Sato
- */
-
-asmlinkage void resume(void);
-#define switch_to(prev,next,last) {                         \
-  void *_last;						    \
-  __asm__ __volatile__(					    \
-  			"mov.l	%1, er0\n\t"		    \
-			"mov.l	%2, er1\n\t"		    \
-                        "mov.l  %3, er2\n\t"                \
-			"jsr @_resume\n\t"                  \
-                        "mov.l  er2,%0\n\t"                 \
-		       : "=r" (_last)			    \
-		       : "r" (&(prev->thread)),		    \
-			 "r" (&(next->thread)),		    \
-                         "g" (prev)                         \
-		       : "cc", "er0", "er1", "er2", "er3"); \
-  (last) = _last; 					    \
-}
-
-#endif /* _H8300_SWITCH_TO_H */
diff --git a/arch/h8300/include/asm/target_time.h b/arch/h8300/include/asm/target_time.h
deleted file mode 100644
index 9f2a9aa1fe6f..000000000000
--- a/arch/h8300/include/asm/target_time.h
+++ /dev/null
@@ -1,4 +0,0 @@
-extern int platform_timer_setup(void (*timer_int)(int, void *, struct pt_regs *));
-extern void platform_timer_eoi(void);
-extern void platform_gettod(unsigned int *year, unsigned int *mon, unsigned int *day, 
-                            unsigned int *hour, unsigned int *min, unsigned int *sec);
diff --git a/arch/h8300/include/asm/termios.h b/arch/h8300/include/asm/termios.h
deleted file mode 100644
index 93a63df56247..000000000000
--- a/arch/h8300/include/asm/termios.h
+++ /dev/null
@@ -1,50 +0,0 @@
-#ifndef _H8300_TERMIOS_H
-#define _H8300_TERMIOS_H
-
-#include <uapi/asm/termios.h>
-
-/*	intr=^C		quit=^|		erase=del	kill=^U
-	eof=^D		vtime=\0	vmin=\1		sxtc=\0
-	start=^Q	stop=^S		susp=^Z		eol=\0
-	reprint=^R	discard=^U	werase=^W	lnext=^V
-	eol2=\0
-*/
-#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
-
-/*
- * Translate a "termio" structure into a "termios". Ugh.
- */
-#define user_termio_to_kernel_termios(termios, termio) \
-({ \
-	unsigned short tmp; \
-	get_user(tmp, &(termio)->c_iflag); \
-	(termios)->c_iflag = (0xffff0000 & ((termios)->c_iflag)) | tmp; \
-	get_user(tmp, &(termio)->c_oflag); \
-	(termios)->c_oflag = (0xffff0000 & ((termios)->c_oflag)) | tmp; \
-	get_user(tmp, &(termio)->c_cflag); \
-	(termios)->c_cflag = (0xffff0000 & ((termios)->c_cflag)) | tmp; \
-	get_user(tmp, &(termio)->c_lflag); \
-	(termios)->c_lflag = (0xffff0000 & ((termios)->c_lflag)) | tmp; \
-	get_user((termios)->c_line, &(termio)->c_line); \
-	copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \
-})
-
-/*
- * Translate a "termios" structure into a "termio". Ugh.
- */
-#define kernel_termios_to_user_termio(termio, termios) \
-({ \
-	put_user((termios)->c_iflag, &(termio)->c_iflag); \
-	put_user((termios)->c_oflag, &(termio)->c_oflag); \
-	put_user((termios)->c_cflag, &(termio)->c_cflag); \
-	put_user((termios)->c_lflag, &(termio)->c_lflag); \
-	put_user((termios)->c_line,  &(termio)->c_line); \
-	copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
-})
-
-#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios2))
-#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios2))
-#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios))
-#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios))
-
-#endif /* _H8300_TERMIOS_H */
diff --git a/arch/h8300/include/asm/thread_info.h b/arch/h8300/include/asm/thread_info.h
deleted file mode 100644
index ec2f7777c65a..000000000000
--- a/arch/h8300/include/asm/thread_info.h
+++ /dev/null
@@ -1,103 +0,0 @@
-/* thread_info.h: h8300 low-level thread information
- * adapted from the i386 and PPC versions by Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- * Copyright (C) 2002  David Howells (dhowells@redhat.com)
- * - Incorporating suggestions made by Linus Torvalds and Dave Miller
- */
-
-#ifndef _ASM_THREAD_INFO_H
-#define _ASM_THREAD_INFO_H
-
-#include <asm/page.h>
-
-#ifdef __KERNEL__
-
-#ifndef __ASSEMBLY__
-
-/*
- * low level task data.
- * If you change this, change the TI_* offsets below to match.
- */
-struct thread_info {
-	struct task_struct *task;		/* main task structure */
-	struct exec_domain *exec_domain;	/* execution domain */
-	unsigned long	   flags;		/* low level flags */
-	int		   cpu;			/* cpu we're on */
-	int		   preempt_count;	/* 0 => preemptable, <0 => BUG */
-	struct restart_block restart_block;
-};
-
-/*
- * macros/functions for gaining access to the thread information structure
- */
-#define INIT_THREAD_INFO(tsk)			\
-{						\
-	.task =		&tsk,			\
-	.exec_domain =	&default_exec_domain,	\
-	.flags =	0,			\
-	.cpu =		0,			\
-	.preempt_count = INIT_PREEMPT_COUNT,	\
-	.restart_block	= {			\
-		.fn = do_no_restart_syscall,	\
-	},					\
-}
-
-#define init_thread_info	(init_thread_union.thread_info)
-#define init_stack		(init_thread_union.stack)
-
-
-/*
- * Size of kernel stack for each process. This must be a power of 2...
- */
-#define THREAD_SIZE_ORDER	1
-#define THREAD_SIZE		8192	/* 2 pages */
-
-
-/* how to get the thread information struct from C */
-static inline struct thread_info *current_thread_info(void)
-{
-	struct thread_info *ti;
-	__asm__(
-		"mov.l	sp, %0 \n\t"
-		"and.l	%1, %0"
-		: "=&r"(ti)
-		: "i" (~(THREAD_SIZE-1))
-		);
-	return ti;
-}
-
-#endif /* __ASSEMBLY__ */
-
-/*
- * Offsets in thread_info structure, used in assembly code
- */
-#define TI_TASK		0
-#define TI_EXECDOMAIN	4
-#define TI_FLAGS	8
-#define TI_CPU		12
-#define TI_PRE_COUNT	16
-
-#define	PREEMPT_ACTIVE	0x4000000
-
-/*
- * thread information flag bit numbers
- */
-#define TIF_SYSCALL_TRACE	0	/* syscall trace active */
-#define TIF_SIGPENDING		1	/* signal pending */
-#define TIF_NEED_RESCHED	2	/* rescheduling necessary */
-#define TIF_MEMDIE		4	/* is terminating due to OOM killer */
-#define TIF_RESTORE_SIGMASK	5	/* restore signal mask in do_signal() */
-#define TIF_NOTIFY_RESUME	6	/* callback before returning to user */
-
-/* as above, but as bit values */
-#define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
-#define _TIF_SIGPENDING		(1<<TIF_SIGPENDING)
-#define _TIF_NEED_RESCHED	(1<<TIF_NEED_RESCHED)
-#define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
-
-#define _TIF_WORK_MASK		(_TIF_SIGPENDING | _TIF_NEED_RESCHED | \
-				 _TIF_NOTIFY_RESUME)
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_THREAD_INFO_H */
diff --git a/arch/h8300/include/asm/timer.h b/arch/h8300/include/asm/timer.h
deleted file mode 100644
index def80464d38f..000000000000
--- a/arch/h8300/include/asm/timer.h
+++ /dev/null
@@ -1,25 +0,0 @@
-#ifndef __H8300_TIMER_H
-#define __H8300_TIMER_H
-
-void h8300_timer_tick(void);
-void h8300_timer_setup(void);
-void h8300_gettod(unsigned int *year, unsigned int *mon, unsigned int *day,
-		   unsigned int *hour, unsigned int *min, unsigned int *sec);
-
-#define TIMER_FREQ (CONFIG_CPU_CLOCK*10000) /* Timer input freq. */
-
-#define calc_param(cnt, div, rate, limit)			\
-do {								\
-	cnt = TIMER_FREQ / HZ;					\
-	for (div = 0; div < ARRAY_SIZE(divide_rate); div++) {	\
-		if (rate[div] == 0)				\
-			continue;				\
-		if ((cnt / rate[div]) > limit)			\
-			break;					\
-	}							\
-	if (div == ARRAY_SIZE(divide_rate))			\
-		panic("Timer counter overflow");		\
-	cnt /= divide_rate[div];				\
-} while(0)
-
-#endif
diff --git a/arch/h8300/include/asm/timex.h b/arch/h8300/include/asm/timex.h
deleted file mode 100644
index 23e67013439f..000000000000
--- a/arch/h8300/include/asm/timex.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * linux/include/asm-h8300/timex.h
- *
- * H8/300 architecture timex specifications
- */
-#ifndef _ASM_H8300_TIMEX_H
-#define _ASM_H8300_TIMEX_H
-
-#define CLOCK_TICK_RATE (CONFIG_CPU_CLOCK*1000/8192) /* Timer input freq. */
-
-typedef unsigned long cycles_t;
-extern short h8300_timer_count;
-
-static inline cycles_t get_cycles(void)
-{
-	return 0;
-}
-
-#endif
diff --git a/arch/h8300/include/asm/tlb.h b/arch/h8300/include/asm/tlb.h
deleted file mode 100644
index 7f0743051ad5..000000000000
--- a/arch/h8300/include/asm/tlb.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef __H8300_TLB_H__
-#define __H8300_TLB_H__
-
-#define tlb_flush(tlb)	do { } while(0)
-
-#include <asm-generic/tlb.h>
-
-#endif
diff --git a/arch/h8300/include/asm/tlbflush.h b/arch/h8300/include/asm/tlbflush.h
deleted file mode 100644
index 41c148a9208e..000000000000
--- a/arch/h8300/include/asm/tlbflush.h
+++ /dev/null
@@ -1,55 +0,0 @@
-#ifndef _H8300_TLBFLUSH_H
-#define _H8300_TLBFLUSH_H
-
-/*
- * Copyright (C) 2000 Lineo, David McCullough <davidm@uclinux.org>
- * Copyright (C) 2000-2002, Greg Ungerer <gerg@snapgear.com>
- */
-
-#include <asm/setup.h>
-
-/*
- * flush all user-space atc entries.
- */
-static inline void __flush_tlb(void)
-{
-	BUG();
-}
-
-static inline void __flush_tlb_one(unsigned long addr)
-{
-	BUG();
-}
-
-#define flush_tlb() __flush_tlb()
-
-/*
- * flush all atc entries (both kernel and user-space entries).
- */
-static inline void flush_tlb_all(void)
-{
-	BUG();
-}
-
-static inline void flush_tlb_mm(struct mm_struct *mm)
-{
-	BUG();
-}
-
-static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
-{
-	BUG();
-}
-
-static inline void flush_tlb_range(struct mm_struct *mm,
-				   unsigned long start, unsigned long end)
-{
-	BUG();
-}
-
-static inline void flush_tlb_kernel_page(unsigned long addr)
-{
-	BUG();
-}
-
-#endif /* _H8300_TLBFLUSH_H */
diff --git a/arch/h8300/include/asm/topology.h b/arch/h8300/include/asm/topology.h
deleted file mode 100644
index fdc121924d4c..000000000000
--- a/arch/h8300/include/asm/topology.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _ASM_H8300_TOPOLOGY_H
-#define _ASM_H8300_TOPOLOGY_H
-
-#include <asm-generic/topology.h>
-
-#endif /* _ASM_H8300_TOPOLOGY_H */
diff --git a/arch/h8300/include/asm/traps.h b/arch/h8300/include/asm/traps.h
deleted file mode 100644
index 41cf6be02f68..000000000000
--- a/arch/h8300/include/asm/traps.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- *  linux/include/asm-h8300/traps.h
- *
- *  Copyright (C) 2003 Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive
- * for more details.
- */
-
-#ifndef _H8300_TRAPS_H
-#define _H8300_TRAPS_H
-
-extern void system_call(void);
-extern void interrupt_entry(void);
-extern void trace_break(void);
-
-#define JMP_OP 0x5a000000
-#define JSR_OP 0x5e000000
-#define VECTOR(address) ((JMP_OP)|((unsigned long)address))
-#define REDIRECT(address) ((JSR_OP)|((unsigned long)address))
-
-#define TRACE_VEC 5
-
-#define TRAP0_VEC 8
-#define TRAP1_VEC 9
-#define TRAP2_VEC 10
-#define TRAP3_VEC 11
-
-#if defined(__H8300H__)
-#define NR_TRAPS 12
-#endif
-#if defined(__H8300S__)
-#define NR_TRAPS 16
-#endif
-
-#endif /* _H8300_TRAPS_H */
diff --git a/arch/h8300/include/asm/types.h b/arch/h8300/include/asm/types.h
deleted file mode 100644
index c012707f6037..000000000000
--- a/arch/h8300/include/asm/types.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef _H8300_TYPES_H
-#define _H8300_TYPES_H
-
-#include <uapi/asm/types.h>
-
-
-#define BITS_PER_LONG 32
-
-#endif /* _H8300_TYPES_H */
diff --git a/arch/h8300/include/asm/uaccess.h b/arch/h8300/include/asm/uaccess.h
deleted file mode 100644
index 8725d1ad4272..000000000000
--- a/arch/h8300/include/asm/uaccess.h
+++ /dev/null
@@ -1,163 +0,0 @@
-#ifndef __H8300_UACCESS_H
-#define __H8300_UACCESS_H
-
-/*
- * User space memory access functions
- */
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/string.h>
-
-#include <asm/segment.h>
-
-#define VERIFY_READ	0
-#define VERIFY_WRITE	1
-
-/* We let the MMU do all checking */
-#define access_ok(type, addr, size) __access_ok((unsigned long)addr,size)
-static inline int __access_ok(unsigned long addr, unsigned long size)
-{
-#define	RANGE_CHECK_OK(addr, size, lower, upper) \
-	(((addr) >= (lower)) && (((addr) + (size)) < (upper)))
-
-	extern unsigned long _ramend;
-	return(RANGE_CHECK_OK(addr, size, 0L, (unsigned long)&_ramend));
-}
-
-/*
- * The exception table consists of pairs of addresses: the first is the
- * address of an instruction that is allowed to fault, and the second is
- * the address at which the program should continue.  No registers are
- * modified, so it is entirely up to the continuation code to figure out
- * what to do.
- *
- * All the routines below use bits of fixup code that are out of line
- * with the main instruction path.  This means when everything is well,
- * we don't even have to jump over them.  Further, they do not intrude
- * on our cache or tlb entries.
- */
-
-struct exception_table_entry
-{
-	unsigned long insn, fixup;
-};
-
-/* Returns 0 if exception not found and fixup otherwise.  */
-extern unsigned long search_exception_table(unsigned long);
-
-
-/*
- * These are the main single-value transfer routines.  They automatically
- * use the right size if we just have the right pointer type.
- */
-
-#define put_user(x, ptr)				\
-({							\
-    int __pu_err = 0;					\
-    typeof(*(ptr)) __pu_val = (x);			\
-    switch (sizeof (*(ptr))) {				\
-    case 1:						\
-    case 2:						\
-    case 4:						\
-	*(ptr) = (__pu_val);   	        		\
-	break;						\
-    case 8:						\
-	memcpy(ptr, &__pu_val, sizeof (*(ptr)));        \
-	break;						\
-    default:						\
-	__pu_err = __put_user_bad();			\
-	break;						\
-    }							\
-    __pu_err;						\
-})
-#define __put_user(x, ptr) put_user(x, ptr)
-
-extern int __put_user_bad(void);
-
-/*
- * Tell gcc we read from memory instead of writing: this is because
- * we do not write to any memory gcc knows about, so there are no
- * aliasing issues.
- */
-
-#define __ptr(x) ((unsigned long *)(x))
-
-/*
- * Tell gcc we read from memory instead of writing: this is because
- * we do not write to any memory gcc knows about, so there are no
- * aliasing issues.
- */
-
-#define get_user(x, ptr)					\
-({								\
-    int __gu_err = 0;						\
-    typeof(*(ptr)) __gu_val = *ptr;				\
-    switch (sizeof(*(ptr))) {					\
-    case 1:							\
-    case 2:							\
-    case 4:							\
-    case 8: 							\
-	break;							\
-    default:							\
-	__gu_err = __get_user_bad();				\
-	break;							\
-    }								\
-    (x) = __gu_val;						\
-    __gu_err;							\
-})
-#define __get_user(x, ptr) get_user(x, ptr)
-
-extern int __get_user_bad(void);
-
-#define copy_from_user(to, from, n)		(memcpy(to, from, n), 0)
-#define copy_to_user(to, from, n)		(memcpy(to, from, n), 0)
-
-#define __copy_from_user(to, from, n) copy_from_user(to, from, n)
-#define __copy_to_user(to, from, n) copy_to_user(to, from, n)
-#define __copy_to_user_inatomic __copy_to_user
-#define __copy_from_user_inatomic __copy_from_user
-
-#define copy_to_user_ret(to,from,n,retval) ({ if (copy_to_user(to,from,n)) return retval; })
-
-#define copy_from_user_ret(to,from,n,retval) ({ if (copy_from_user(to,from,n)) return retval; })
-
-/*
- * Copy a null terminated string from userspace.
- */
-
-static inline long
-strncpy_from_user(char *dst, const char *src, long count)
-{
-	char *tmp;
-	strncpy(dst, src, count);
-	for (tmp = dst; *tmp && count > 0; tmp++, count--)
-		;
-	return(tmp - dst); /* DAVIDM should we count a NUL ?  check getname */
-}
-
-/*
- * Return the size of a string (including the ending 0)
- *
- * Return 0 on exception, a value greater than N if too long
- */
-static inline long strnlen_user(const char *src, long n)
-{
-	return(strlen(src) + 1); /* DAVIDM make safer */
-}
-
-#define strlen_user(str) strnlen_user(str, 32767)
-
-/*
- * Zero Userspace
- */
-
-static inline unsigned long
-clear_user(void *to, unsigned long n)
-{
-	memset(to, 0, n);
-	return 0;
-}
-
-#define __clear_user	clear_user
-
-#endif /* _H8300_UACCESS_H */
diff --git a/arch/h8300/include/asm/ucontext.h b/arch/h8300/include/asm/ucontext.h
deleted file mode 100644
index 0bcf8f85fab9..000000000000
--- a/arch/h8300/include/asm/ucontext.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#ifndef _H8300_UCONTEXT_H
-#define _H8300_UCONTEXT_H
-
-struct ucontext {
-	unsigned long	  uc_flags;
-	struct ucontext  *uc_link;
-	stack_t		  uc_stack;
-	struct sigcontext uc_mcontext;
-	sigset_t	  uc_sigmask;	/* mask last for extensibility */
-};
-
-#endif
diff --git a/arch/h8300/include/asm/unaligned.h b/arch/h8300/include/asm/unaligned.h
deleted file mode 100644
index b8d06c70c2da..000000000000
--- a/arch/h8300/include/asm/unaligned.h
+++ /dev/null
@@ -1,11 +0,0 @@
-#ifndef _ASM_H8300_UNALIGNED_H
-#define _ASM_H8300_UNALIGNED_H
-
-#include <linux/unaligned/be_memmove.h>
-#include <linux/unaligned/le_byteshift.h>
-#include <linux/unaligned/generic.h>
-
-#define get_unaligned	__get_unaligned_be
-#define put_unaligned	__put_unaligned_be
-
-#endif /* _ASM_H8300_UNALIGNED_H */
diff --git a/arch/h8300/include/asm/unistd.h b/arch/h8300/include/asm/unistd.h
deleted file mode 100644
index ab671ecf5196..000000000000
--- a/arch/h8300/include/asm/unistd.h
+++ /dev/null
@@ -1,36 +0,0 @@
-#ifndef _ASM_H8300_UNISTD_H_
-#define _ASM_H8300_UNISTD_H_
-
-#include <uapi/asm/unistd.h>
-
-
-#define NR_syscalls 321
-
-#define __ARCH_WANT_OLD_READDIR
-#define __ARCH_WANT_OLD_STAT
-#define __ARCH_WANT_STAT64
-#define __ARCH_WANT_SYS_ALARM
-#define __ARCH_WANT_SYS_GETHOSTNAME
-#define __ARCH_WANT_SYS_IPC
-#define __ARCH_WANT_SYS_PAUSE
-#define __ARCH_WANT_SYS_SGETMASK
-#define __ARCH_WANT_SYS_SIGNAL
-#define __ARCH_WANT_SYS_TIME
-#define __ARCH_WANT_SYS_UTIME
-#define __ARCH_WANT_SYS_WAITPID
-#define __ARCH_WANT_SYS_SOCKETCALL
-#define __ARCH_WANT_SYS_FADVISE64
-#define __ARCH_WANT_SYS_GETPGRP
-#define __ARCH_WANT_SYS_LLSEEK
-#define __ARCH_WANT_SYS_NICE
-#define __ARCH_WANT_SYS_OLD_GETRLIMIT
-#define __ARCH_WANT_SYS_OLD_MMAP
-#define __ARCH_WANT_SYS_OLD_SELECT
-#define __ARCH_WANT_SYS_OLDUMOUNT
-#define __ARCH_WANT_SYS_SIGPENDING
-#define __ARCH_WANT_SYS_SIGPROCMASK
-#define __ARCH_WANT_SYS_FORK
-#define __ARCH_WANT_SYS_VFORK
-#define __ARCH_WANT_SYS_CLONE
-
-#endif /* _ASM_H8300_UNISTD_H_ */
diff --git a/arch/h8300/include/asm/user.h b/arch/h8300/include/asm/user.h
deleted file mode 100644
index 14a9e18950f1..000000000000
--- a/arch/h8300/include/asm/user.h
+++ /dev/null
@@ -1,75 +0,0 @@
-#ifndef _H8300_USER_H
-#define _H8300_USER_H
-
-#include <asm/page.h>
-
-/* Core file format: The core file is written in such a way that gdb
-   can understand it and provide useful information to the user (under
-   linux we use the 'trad-core' bfd).  There are quite a number of
-   obstacles to being able to view the contents of the floating point
-   registers, and until these are solved you will not be able to view the
-   contents of them.  Actually, you can read in the core file and look at
-   the contents of the user struct to find out what the floating point
-   registers contain.
-   The actual file contents are as follows:
-   UPAGE: 1 page consisting of a user struct that tells gdb what is present
-   in the file.  Directly after this is a copy of the task_struct, which
-   is currently not used by gdb, but it may come in useful at some point.
-   All of the registers are stored as part of the upage.  The upage should
-   always be only one page.
-   DATA: The data area is stored.  We use current->end_text to
-   current->brk to pick up all of the user variables, plus any memory
-   that may have been malloced.  No attempt is made to determine if a page
-   is demand-zero or if a page is totally unused, we just cover the entire
-   range.  All of the addresses are rounded in such a way that an integral
-   number of pages is written.
-   STACK: We need the stack information in order to get a meaningful
-   backtrace.  We need to write the data from (esp) to
-   current->start_stack, so we round each of these off in order to be able
-   to write an integer number of pages.
-   The minimum core file size is 3 pages, or 12288 bytes.
-*/
-
-/* This is the old layout of "struct pt_regs" as of Linux 1.x, and
-   is still the layout used by user (the new pt_regs doesn't have
-   all registers). */
-struct user_regs_struct {
-	long er1,er2,er3,er4,er5,er6;
-	long er0;
-	long usp;
-	long orig_er0;
-	short ccr;
-	long pc;
-};
-
-	
-/* When the kernel dumps core, it starts by dumping the user struct -
-   this will be used by gdb to figure out where the data and stack segments
-   are within the file, and what virtual addresses to use. */
-struct user{
-/* We start with the registers, to mimic the way that "memory" is returned
-   from the ptrace(3,...) function.  */
-  struct user_regs_struct regs;	/* Where the registers are actually stored */
-/* ptrace does not yet supply these.  Someday.... */
-/* The rest of this junk is to help gdb figure out what goes where */
-  unsigned long int u_tsize;	/* Text segment size (pages). */
-  unsigned long int u_dsize;	/* Data segment size (pages). */
-  unsigned long int u_ssize;	/* Stack segment size (pages). */
-  unsigned long start_code;     /* Starting virtual address of text. */
-  unsigned long start_stack;	/* Starting virtual address of stack area.
-				   This is actually the bottom of the stack,
-				   the top of the stack is always found in the
-				   esp register.  */
-  long int signal;     		/* Signal that caused the core dump. */
-  int reserved;			/* No longer used */
-  unsigned long u_ar0;		/* Used by gdb to help find the values for */
-				/* the registers. */
-  unsigned long magic;		/* To uniquely identify a core file */
-  char u_comm[32];		/* User command that was responsible */
-};
-#define NBPG PAGE_SIZE
-#define UPAGES 1
-#define HOST_TEXT_START_ADDR (u.start_code)
-#define HOST_STACK_END_ADDR (u.start_stack + u.u_ssize * NBPG)
-
-#endif
diff --git a/arch/h8300/include/asm/virtconvert.h b/arch/h8300/include/asm/virtconvert.h
deleted file mode 100644
index 19cfd62b11c3..000000000000
--- a/arch/h8300/include/asm/virtconvert.h
+++ /dev/null
@@ -1,20 +0,0 @@
-#ifndef __H8300_VIRT_CONVERT__
-#define __H8300_VIRT_CONVERT__
-
-/*
- * Macros used for converting between virtual and physical mappings.
- */
-
-#ifdef __KERNEL__
-
-#include <asm/setup.h>
-#include <asm/page.h>
-
-#define phys_to_virt(vaddr)	((void *) (vaddr))
-#define virt_to_phys(vaddr)	((unsigned long) (vaddr))
-
-#define virt_to_bus virt_to_phys
-#define bus_to_virt phys_to_virt
-
-#endif
-#endif
diff --git a/arch/h8300/include/uapi/asm/Kbuild b/arch/h8300/include/uapi/asm/Kbuild
deleted file mode 100644
index 040178cdb3eb..000000000000
--- a/arch/h8300/include/uapi/asm/Kbuild
+++ /dev/null
@@ -1,34 +0,0 @@
-# UAPI Header export list
-include include/uapi/asm-generic/Kbuild.asm
-
-header-y += auxvec.h
-header-y += bitsperlong.h
-header-y += byteorder.h
-header-y += errno.h
-header-y += fcntl.h
-header-y += ioctl.h
-header-y += ioctls.h
-header-y += ipcbuf.h
-header-y += kvm_para.h
-header-y += mman.h
-header-y += msgbuf.h
-header-y += param.h
-header-y += poll.h
-header-y += posix_types.h
-header-y += ptrace.h
-header-y += resource.h
-header-y += sembuf.h
-header-y += setup.h
-header-y += shmbuf.h
-header-y += sigcontext.h
-header-y += siginfo.h
-header-y += signal.h
-header-y += socket.h
-header-y += sockios.h
-header-y += stat.h
-header-y += statfs.h
-header-y += swab.h
-header-y += termbits.h
-header-y += termios.h
-header-y += types.h
-header-y += unistd.h
diff --git a/arch/h8300/include/uapi/asm/auxvec.h b/arch/h8300/include/uapi/asm/auxvec.h
deleted file mode 100644
index 1d36fe38b088..000000000000
--- a/arch/h8300/include/uapi/asm/auxvec.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#ifndef __ASMH8300_AUXVEC_H
-#define __ASMH8300_AUXVEC_H
-
-#endif
diff --git a/arch/h8300/include/uapi/asm/bitsperlong.h b/arch/h8300/include/uapi/asm/bitsperlong.h
deleted file mode 100644
index 6dc0bb0c13b2..000000000000
--- a/arch/h8300/include/uapi/asm/bitsperlong.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/bitsperlong.h>
diff --git a/arch/h8300/include/uapi/asm/byteorder.h b/arch/h8300/include/uapi/asm/byteorder.h
deleted file mode 100644
index 13539da99efd..000000000000
--- a/arch/h8300/include/uapi/asm/byteorder.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _H8300_BYTEORDER_H
-#define _H8300_BYTEORDER_H
-
-#include <linux/byteorder/big_endian.h>
-
-#endif /* _H8300_BYTEORDER_H */
diff --git a/arch/h8300/include/uapi/asm/errno.h b/arch/h8300/include/uapi/asm/errno.h
deleted file mode 100644
index 0c2f5641fdcc..000000000000
--- a/arch/h8300/include/uapi/asm/errno.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _H8300_ERRNO_H
-#define _H8300_ERRNO_H
-
-#include <asm-generic/errno.h>
-
-#endif /* _H8300_ERRNO_H */
diff --git a/arch/h8300/include/uapi/asm/fcntl.h b/arch/h8300/include/uapi/asm/fcntl.h
deleted file mode 100644
index 1952cb2e3b06..000000000000
--- a/arch/h8300/include/uapi/asm/fcntl.h
+++ /dev/null
@@ -1,11 +0,0 @@
-#ifndef _H8300_FCNTL_H
-#define _H8300_FCNTL_H
-
-#define O_DIRECTORY	040000	/* must be a directory */
-#define O_NOFOLLOW	0100000	/* don't follow links */
-#define O_DIRECT	0200000	/* direct disk access hint - currently ignored */
-#define O_LARGEFILE	0400000
-
-#include <asm-generic/fcntl.h>
-
-#endif /* _H8300_FCNTL_H */
diff --git a/arch/h8300/include/uapi/asm/ioctl.h b/arch/h8300/include/uapi/asm/ioctl.h
deleted file mode 100644
index b279fe06dfe5..000000000000
--- a/arch/h8300/include/uapi/asm/ioctl.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/ioctl.h>
diff --git a/arch/h8300/include/uapi/asm/ioctls.h b/arch/h8300/include/uapi/asm/ioctls.h
deleted file mode 100644
index 30eaed2facdb..000000000000
--- a/arch/h8300/include/uapi/asm/ioctls.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef __ARCH_H8300_IOCTLS_H__
-#define __ARCH_H8300_IOCTLS_H__
-
-#define FIOQSIZE	0x545E
-
-#include <asm-generic/ioctls.h>
-
-#endif /* __ARCH_H8300_IOCTLS_H__ */
diff --git a/arch/h8300/include/uapi/asm/ipcbuf.h b/arch/h8300/include/uapi/asm/ipcbuf.h
deleted file mode 100644
index 84c7e51cb6d0..000000000000
--- a/arch/h8300/include/uapi/asm/ipcbuf.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/ipcbuf.h>
diff --git a/arch/h8300/include/uapi/asm/kvm_para.h b/arch/h8300/include/uapi/asm/kvm_para.h
deleted file mode 100644
index 14fab8f0b957..000000000000
--- a/arch/h8300/include/uapi/asm/kvm_para.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/kvm_para.h>
diff --git a/arch/h8300/include/uapi/asm/mman.h b/arch/h8300/include/uapi/asm/mman.h
deleted file mode 100644
index 8eebf89f5ab1..000000000000
--- a/arch/h8300/include/uapi/asm/mman.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/mman.h>
diff --git a/arch/h8300/include/uapi/asm/msgbuf.h b/arch/h8300/include/uapi/asm/msgbuf.h
deleted file mode 100644
index 6b148cd09aa5..000000000000
--- a/arch/h8300/include/uapi/asm/msgbuf.h
+++ /dev/null
@@ -1,31 +0,0 @@
-#ifndef _H8300_MSGBUF_H
-#define _H8300_MSGBUF_H
-
-/* 
- * The msqid64_ds structure for H8/300 architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 64-bit time_t to solve y2038 problem
- * - 2 miscellaneous 32-bit values
- */
-
-struct msqid64_ds {
-	struct ipc64_perm msg_perm;
-	__kernel_time_t msg_stime;	/* last msgsnd time */
-	unsigned long	__unused1;
-	__kernel_time_t msg_rtime;	/* last msgrcv time */
-	unsigned long	__unused2;
-	__kernel_time_t msg_ctime;	/* last change time */
-	unsigned long	__unused3;
-	unsigned long  msg_cbytes;	/* current number of bytes on queue */
-	unsigned long  msg_qnum;	/* number of messages in queue */
-	unsigned long  msg_qbytes;	/* max number of bytes on queue */
-	__kernel_pid_t msg_lspid;	/* pid of last msgsnd */
-	__kernel_pid_t msg_lrpid;	/* last receive pid */
-	unsigned long  __unused4;
-	unsigned long  __unused5;
-};
-
-#endif /* _H8300_MSGBUF_H */
diff --git a/arch/h8300/include/uapi/asm/param.h b/arch/h8300/include/uapi/asm/param.h
deleted file mode 100644
index 3dd18ae15f03..000000000000
--- a/arch/h8300/include/uapi/asm/param.h
+++ /dev/null
@@ -1,16 +0,0 @@
-#ifndef _UAPI_H8300_PARAM_H
-#define _UAPI_H8300_PARAM_H
-
-#ifndef __KERNEL__
-#define HZ		100
-#endif
-
-#define EXEC_PAGESIZE	4096
-
-#ifndef NOGROUP
-#define NOGROUP		(-1)
-#endif
-
-#define MAXHOSTNAMELEN	64	/* max length of hostname */
-
-#endif /* _UAPI_H8300_PARAM_H */
diff --git a/arch/h8300/include/uapi/asm/poll.h b/arch/h8300/include/uapi/asm/poll.h
deleted file mode 100644
index f61540c22d94..000000000000
--- a/arch/h8300/include/uapi/asm/poll.h
+++ /dev/null
@@ -1,11 +0,0 @@
-#ifndef __H8300_POLL_H
-#define __H8300_POLL_H
-
-#define POLLWRNORM	POLLOUT
-#define POLLWRBAND	256
-
-#include <asm-generic/poll.h>
-
-#undef POLLREMOVE
-
-#endif
diff --git a/arch/h8300/include/uapi/asm/posix_types.h b/arch/h8300/include/uapi/asm/posix_types.h
deleted file mode 100644
index 91e62ba4c7b0..000000000000
--- a/arch/h8300/include/uapi/asm/posix_types.h
+++ /dev/null
@@ -1,26 +0,0 @@
-#ifndef __ARCH_H8300_POSIX_TYPES_H
-#define __ARCH_H8300_POSIX_TYPES_H
-
-/*
- * This file is generally used by user-level software, so you need to
- * be a little careful about namespace pollution etc.  Also, we cannot
- * assume GCC is being used.
- */
-
-typedef unsigned short	__kernel_mode_t;
-#define __kernel_mode_t __kernel_mode_t
-
-typedef unsigned short	__kernel_ipc_pid_t;
-#define __kernel_ipc_pid_t __kernel_ipc_pid_t
-
-typedef unsigned short	__kernel_uid_t;
-typedef unsigned short	__kernel_gid_t;
-#define __kernel_uid_t __kernel_uid_t
-
-typedef unsigned short	__kernel_old_uid_t;
-typedef unsigned short	__kernel_old_gid_t;
-#define __kernel_old_uid_t __kernel_old_uid_t
-
-#include <asm-generic/posix_types.h>
-
-#endif
diff --git a/arch/h8300/include/uapi/asm/ptrace.h b/arch/h8300/include/uapi/asm/ptrace.h
deleted file mode 100644
index ef39ec5977b6..000000000000
--- a/arch/h8300/include/uapi/asm/ptrace.h
+++ /dev/null
@@ -1,44 +0,0 @@
-#ifndef _UAPI_H8300_PTRACE_H
-#define _UAPI_H8300_PTRACE_H
-
-#ifndef __ASSEMBLY__
-
-#define PT_ER1	   0
-#define PT_ER2	   1
-#define PT_ER3	   2
-#define PT_ER4	   3
-#define PT_ER5	   4
-#define PT_ER6	   5
-#define PT_ER0	   6
-#define PT_ORIG_ER0	   7
-#define PT_CCR	   8
-#define PT_PC	   9
-#define PT_USP	   10
-#define PT_EXR     12
-
-/* this struct defines the way the registers are stored on the
-   stack during a system call. */
-
-struct pt_regs {
-	long     retpc;
-	long     er4;
-	long     er5;
-	long     er6;
-	long     er3;
-	long     er2;
-	long     er1;
-	long     orig_er0;
-	unsigned short ccr;
-	long     er0;
-	long     vector;
-#if defined(CONFIG_CPU_H8S)
-	unsigned short exr;
-#endif
-	unsigned long  pc;
-} __attribute__((aligned(2),packed));
-
-#define PTRACE_GETREGS            12
-#define PTRACE_SETREGS            13
-
-#endif /* __ASSEMBLY__ */
-#endif /* _UAPI_H8300_PTRACE_H */
diff --git a/arch/h8300/include/uapi/asm/resource.h b/arch/h8300/include/uapi/asm/resource.h
deleted file mode 100644
index 46c5f4391607..000000000000
--- a/arch/h8300/include/uapi/asm/resource.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _H8300_RESOURCE_H
-#define _H8300_RESOURCE_H
-
-#include <asm-generic/resource.h>
-
-#endif /* _H8300_RESOURCE_H */
diff --git a/arch/h8300/include/uapi/asm/sembuf.h b/arch/h8300/include/uapi/asm/sembuf.h
deleted file mode 100644
index e04a3ec0cb92..000000000000
--- a/arch/h8300/include/uapi/asm/sembuf.h
+++ /dev/null
@@ -1,25 +0,0 @@
-#ifndef _H8300_SEMBUF_H
-#define _H8300_SEMBUF_H
-
-/* 
- * The semid64_ds structure for m68k architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 64-bit time_t to solve y2038 problem
- * - 2 miscellaneous 32-bit values
- */
-
-struct semid64_ds {
-	struct ipc64_perm sem_perm;		/* permissions .. see ipc.h */
-	__kernel_time_t	sem_otime;		/* last semop time */
-	unsigned long	__unused1;
-	__kernel_time_t	sem_ctime;		/* last change time */
-	unsigned long	__unused2;
-	unsigned long	sem_nsems;		/* no. of semaphores in array */
-	unsigned long	__unused3;
-	unsigned long	__unused4;
-};
-
-#endif /* _H8300_SEMBUF_H */
diff --git a/arch/h8300/include/uapi/asm/setup.h b/arch/h8300/include/uapi/asm/setup.h
deleted file mode 100644
index e2c600e96733..000000000000
--- a/arch/h8300/include/uapi/asm/setup.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __H8300_SETUP_H
-#define __H8300_SETUP_H
-
-#define COMMAND_LINE_SIZE	512
-
-#endif
diff --git a/arch/h8300/include/uapi/asm/shmbuf.h b/arch/h8300/include/uapi/asm/shmbuf.h
deleted file mode 100644
index 64e77993a7a9..000000000000
--- a/arch/h8300/include/uapi/asm/shmbuf.h
+++ /dev/null
@@ -1,42 +0,0 @@
-#ifndef _H8300_SHMBUF_H
-#define _H8300_SHMBUF_H
-
-/* 
- * The shmid64_ds structure for m68k architecture.
- * Note extra padding because this structure is passed back and forth
- * between kernel and user space.
- *
- * Pad space is left for:
- * - 64-bit time_t to solve y2038 problem
- * - 2 miscellaneous 32-bit values
- */
-
-struct shmid64_ds {
-	struct ipc64_perm	shm_perm;	/* operation perms */
-	size_t			shm_segsz;	/* size of segment (bytes) */
-	__kernel_time_t		shm_atime;	/* last attach time */
-	unsigned long		__unused1;
-	__kernel_time_t		shm_dtime;	/* last detach time */
-	unsigned long		__unused2;
-	__kernel_time_t		shm_ctime;	/* last change time */
-	unsigned long		__unused3;
-	__kernel_pid_t		shm_cpid;	/* pid of creator */
-	__kernel_pid_t		shm_lpid;	/* pid of last operator */
-	unsigned long		shm_nattch;	/* no. of current attaches */
-	unsigned long		__unused4;
-	unsigned long		__unused5;
-};
-
-struct shminfo64 {
-	unsigned long	shmmax;
-	unsigned long	shmmin;
-	unsigned long	shmmni;
-	unsigned long	shmseg;
-	unsigned long	shmall;
-	unsigned long	__unused1;
-	unsigned long	__unused2;
-	unsigned long	__unused3;
-	unsigned long	__unused4;
-};
-
-#endif /* _H8300_SHMBUF_H */
diff --git a/arch/h8300/include/uapi/asm/sigcontext.h b/arch/h8300/include/uapi/asm/sigcontext.h
deleted file mode 100644
index e4b81505f8f8..000000000000
--- a/arch/h8300/include/uapi/asm/sigcontext.h
+++ /dev/null
@@ -1,18 +0,0 @@
-#ifndef _ASM_H8300_SIGCONTEXT_H
-#define _ASM_H8300_SIGCONTEXT_H
-
-struct sigcontext {
-	unsigned long  sc_mask; 	/* old sigmask */
-	unsigned long  sc_usp;		/* old user stack pointer */
-	unsigned long  sc_er0;
-	unsigned long  sc_er1;
-	unsigned long  sc_er2;
-	unsigned long  sc_er3;
-	unsigned long  sc_er4;
-	unsigned long  sc_er5;
-	unsigned long  sc_er6;
-	unsigned short sc_ccr;
-	unsigned long  sc_pc;
-};
-
-#endif
diff --git a/arch/h8300/include/uapi/asm/siginfo.h b/arch/h8300/include/uapi/asm/siginfo.h
deleted file mode 100644
index bc8fbea931a5..000000000000
--- a/arch/h8300/include/uapi/asm/siginfo.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _H8300_SIGINFO_H
-#define _H8300_SIGINFO_H
-
-#include <asm-generic/siginfo.h>
-
-#endif
diff --git a/arch/h8300/include/uapi/asm/signal.h b/arch/h8300/include/uapi/asm/signal.h
deleted file mode 100644
index af3a6c37fee6..000000000000
--- a/arch/h8300/include/uapi/asm/signal.h
+++ /dev/null
@@ -1,115 +0,0 @@
-#ifndef _UAPI_H8300_SIGNAL_H
-#define _UAPI_H8300_SIGNAL_H
-
-#include <linux/types.h>
-
-/* Avoid too many header ordering problems.  */
-struct siginfo;
-
-#ifndef __KERNEL__
-/* Here we must cater to libcs that poke about in kernel headers.  */
-
-#define NSIG		32
-typedef unsigned long sigset_t;
-
-#endif /* __KERNEL__ */
-
-#define SIGHUP		 1
-#define SIGINT		 2
-#define SIGQUIT		 3
-#define SIGILL		 4
-#define SIGTRAP		 5
-#define SIGABRT		 6
-#define SIGIOT		 6
-#define SIGBUS		 7
-#define SIGFPE		 8
-#define SIGKILL		 9
-#define SIGUSR1		10
-#define SIGSEGV		11
-#define SIGUSR2		12
-#define SIGPIPE		13
-#define SIGALRM		14
-#define SIGTERM		15
-#define SIGSTKFLT	16
-#define SIGCHLD		17
-#define SIGCONT		18
-#define SIGSTOP		19
-#define SIGTSTP		20
-#define SIGTTIN		21
-#define SIGTTOU		22
-#define SIGURG		23
-#define SIGXCPU		24
-#define SIGXFSZ		25
-#define SIGVTALRM	26
-#define SIGPROF		27
-#define SIGWINCH	28
-#define SIGIO		29
-#define SIGPOLL		SIGIO
-/*
-#define SIGLOST		29
-*/
-#define SIGPWR		30
-#define SIGSYS		31
-#define	SIGUNUSED	31
-
-/* These should not be considered constants from userland.  */
-#define SIGRTMIN	32
-#define SIGRTMAX	_NSIG
-
-/*
- * SA_FLAGS values:
- *
- * SA_ONSTACK indicates that a registered stack_t will be used.
- * SA_RESTART flag to get restarting signals (which were the default long ago)
- * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
- * SA_RESETHAND clears the handler when the signal is delivered.
- * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
- * SA_NODEFER prevents the current signal from being masked in the handler.
- *
- * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
- * Unix names RESETHAND and NODEFER respectively.
- */
-#define SA_NOCLDSTOP	0x00000001
-#define SA_NOCLDWAIT	0x00000002 /* not supported yet */
-#define SA_SIGINFO	0x00000004
-#define SA_ONSTACK	0x08000000
-#define SA_RESTART	0x10000000
-#define SA_NODEFER	0x40000000
-#define SA_RESETHAND	0x80000000
-
-#define SA_NOMASK	SA_NODEFER
-#define SA_ONESHOT	SA_RESETHAND
-
-#define SA_RESTORER	0x04000000
-
-#define MINSIGSTKSZ	2048
-#define SIGSTKSZ	8192
-
-#include <asm-generic/signal-defs.h>
-
-#ifndef __KERNEL__
-/* Here we must cater to libcs that poke about in kernel headers.  */
-
-struct sigaction {
-	union {
-	  __sighandler_t _sa_handler;
-	  void (*_sa_sigaction)(int, struct siginfo *, void *);
-	} _u;
-	sigset_t sa_mask;
-	unsigned long sa_flags;
-	void (*sa_restorer)(void);
-};
-
-#define sa_handler	_u._sa_handler
-#define sa_sigaction	_u._sa_sigaction
-
-#endif /* __KERNEL__ */
-
-typedef struct sigaltstack {
-	void *ss_sp;
-	int ss_flags;
-	size_t ss_size;
-} stack_t;
-
-
-#endif /* _UAPI_H8300_SIGNAL_H */
diff --git a/arch/h8300/include/uapi/asm/socket.h b/arch/h8300/include/uapi/asm/socket.h
deleted file mode 100644
index 9490758c5e2b..000000000000
--- a/arch/h8300/include/uapi/asm/socket.h
+++ /dev/null
@@ -1,79 +0,0 @@
-#ifndef _ASM_SOCKET_H
-#define _ASM_SOCKET_H
-
-#include <asm/sockios.h>
-
-/* For setsockoptions(2) */
-#define SOL_SOCKET	1
-
-#define SO_DEBUG	1
-#define SO_REUSEADDR	2
-#define SO_TYPE		3
-#define SO_ERROR	4
-#define SO_DONTROUTE	5
-#define SO_BROADCAST	6
-#define SO_SNDBUF	7
-#define SO_RCVBUF	8
-#define SO_SNDBUFFORCE	32
-#define SO_RCVBUFFORCE	33
-#define SO_KEEPALIVE	9
-#define SO_OOBINLINE	10
-#define SO_NO_CHECK	11
-#define SO_PRIORITY	12
-#define SO_LINGER	13
-#define SO_BSDCOMPAT	14
-#define SO_REUSEPORT	15
-#define SO_PASSCRED	16
-#define SO_PEERCRED	17
-#define SO_RCVLOWAT	18
-#define SO_SNDLOWAT	19
-#define SO_RCVTIMEO	20
-#define SO_SNDTIMEO	21
-
-/* Security levels - as per NRL IPv6 - don't actually do anything */
-#define SO_SECURITY_AUTHENTICATION		22
-#define SO_SECURITY_ENCRYPTION_TRANSPORT	23
-#define SO_SECURITY_ENCRYPTION_NETWORK		24
-
-#define SO_BINDTODEVICE	25
-
-/* Socket filtering */
-#define SO_ATTACH_FILTER        26
-#define SO_DETACH_FILTER        27
-#define SO_GET_FILTER		SO_ATTACH_FILTER
-
-#define SO_PEERNAME             28
-#define SO_TIMESTAMP		29
-#define SCM_TIMESTAMP		SO_TIMESTAMP
-
-#define SO_ACCEPTCONN		30
-
-#define SO_PEERSEC		31
-#define SO_PASSSEC		34
-#define SO_TIMESTAMPNS		35
-#define SCM_TIMESTAMPNS		SO_TIMESTAMPNS
-
-#define SO_MARK			36
-
-#define SO_TIMESTAMPING		37
-#define SCM_TIMESTAMPING	SO_TIMESTAMPING
-
-#define SO_PROTOCOL		38
-#define SO_DOMAIN		39
-
-#define SO_RXQ_OVFL             40
-
-#define SO_WIFI_STATUS		41
-#define SCM_WIFI_STATUS		SO_WIFI_STATUS
-#define SO_PEEK_OFF		42
-
-/* Instruct lower device to use last 4-bytes of skb data as FCS */
-#define SO_NOFCS		43
-
-#define SO_LOCK_FILTER		44
-
-#define SO_SELECT_ERR_QUEUE	45
-
-#define SO_BUSY_POLL		46
-
-#endif /* _ASM_SOCKET_H */
diff --git a/arch/h8300/include/uapi/asm/sockios.h b/arch/h8300/include/uapi/asm/sockios.h
deleted file mode 100644
index e9c7ec810c23..000000000000
--- a/arch/h8300/include/uapi/asm/sockios.h
+++ /dev/null
@@ -1,13 +0,0 @@
-#ifndef __ARCH_H8300_SOCKIOS__
-#define __ARCH_H8300_SOCKIOS__
-
-/* Socket-level I/O control calls. */
-#define FIOSETOWN 	0x8901
-#define SIOCSPGRP	0x8902
-#define FIOGETOWN	0x8903
-#define SIOCGPGRP	0x8904
-#define SIOCATMARK	0x8905
-#define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
-#define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
-
-#endif /* __ARCH_H8300_SOCKIOS__ */
diff --git a/arch/h8300/include/uapi/asm/stat.h b/arch/h8300/include/uapi/asm/stat.h
deleted file mode 100644
index 62c3cc24dfe6..000000000000
--- a/arch/h8300/include/uapi/asm/stat.h
+++ /dev/null
@@ -1,78 +0,0 @@
-#ifndef _H8300_STAT_H
-#define _H8300_STAT_H
-
-struct __old_kernel_stat {
-	unsigned short st_dev;
-	unsigned short st_ino;
-	unsigned short st_mode;
-	unsigned short st_nlink;
-	unsigned short st_uid;
-	unsigned short st_gid;
-	unsigned short st_rdev;
-	unsigned long  st_size;
-	unsigned long  st_atime;
-	unsigned long  st_mtime;
-	unsigned long  st_ctime;
-};
-
-struct stat {
-	unsigned short st_dev;
-	unsigned short __pad1;
-	unsigned long st_ino;
-	unsigned short st_mode;
-	unsigned short st_nlink;
-	unsigned short st_uid;
-	unsigned short st_gid;
-	unsigned short st_rdev;
-	unsigned short __pad2;
-	unsigned long  st_size;
-	unsigned long  st_blksize;
-	unsigned long  st_blocks;
-	unsigned long  st_atime;
-	unsigned long  __unused1;
-	unsigned long  st_mtime;
-	unsigned long  __unused2;
-	unsigned long  st_ctime;
-	unsigned long  __unused3;
-	unsigned long  __unused4;
-	unsigned long  __unused5;
-};
-
-/* This matches struct stat64 in glibc2.1, hence the absolutely
- * insane amounts of padding around dev_t's.
- */
-struct stat64 {
-	unsigned long long	st_dev;
-	unsigned char	__pad1[2];
-
-#define STAT64_HAS_BROKEN_ST_INO	1
-	unsigned long	__st_ino;
-
-	unsigned int	st_mode;
-	unsigned int	st_nlink;
-
-	unsigned long	st_uid;
-	unsigned long	st_gid;
-
-	unsigned long long	st_rdev;
-	unsigned char	__pad3[2];
-
-	long long	st_size;
-	unsigned long	st_blksize;
-
-	unsigned long	__pad4;		/* future possible st_blocks high bits */
-	unsigned long	st_blocks;	/* Number 512-byte blocks allocated. */
-
-	unsigned long	st_atime;
-	unsigned long	st_atime_nsec;
-
-	unsigned long	st_mtime;
-	unsigned long	st_mtime_nsec;
-
-	unsigned long	st_ctime;
-	unsigned long	st_ctime_nsec;
-
-	unsigned long long	st_ino;
-};
-
-#endif /* _H8300_STAT_H */
diff --git a/arch/h8300/include/uapi/asm/statfs.h b/arch/h8300/include/uapi/asm/statfs.h
deleted file mode 100644
index b96efa712aac..000000000000
--- a/arch/h8300/include/uapi/asm/statfs.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _H8300_STATFS_H
-#define _H8300_STATFS_H
-
-#include <asm-generic/statfs.h>
-
-#endif /* _H8300_STATFS_H */
diff --git a/arch/h8300/include/uapi/asm/swab.h b/arch/h8300/include/uapi/asm/swab.h
deleted file mode 100644
index 39abbf52807d..000000000000
--- a/arch/h8300/include/uapi/asm/swab.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef _H8300_SWAB_H
-#define _H8300_SWAB_H
-
-#include <linux/types.h>
-
-#if defined(__GNUC__) && !defined(__STRICT_ANSI__) || defined(__KERNEL__)
-#  define __SWAB_64_THRU_32__
-#endif
-
-#endif /* _H8300_SWAB_H */
diff --git a/arch/h8300/include/uapi/asm/termbits.h b/arch/h8300/include/uapi/asm/termbits.h
deleted file mode 100644
index 3287a6244d74..000000000000
--- a/arch/h8300/include/uapi/asm/termbits.h
+++ /dev/null
@@ -1,201 +0,0 @@
-#ifndef __ARCH_H8300_TERMBITS_H__
-#define __ARCH_H8300_TERMBITS_H__
-
-#include <linux/posix_types.h>
-
-typedef unsigned char	cc_t;
-typedef unsigned int	speed_t;
-typedef unsigned int	tcflag_t;
-
-#define NCCS 19
-struct termios {
-	tcflag_t c_iflag;		/* input mode flags */
-	tcflag_t c_oflag;		/* output mode flags */
-	tcflag_t c_cflag;		/* control mode flags */
-	tcflag_t c_lflag;		/* local mode flags */
-	cc_t c_line;			/* line discipline */
-	cc_t c_cc[NCCS];		/* control characters */
-};
-
-struct termios2 {
-	tcflag_t c_iflag;		/* input mode flags */
-	tcflag_t c_oflag;		/* output mode flags */
-	tcflag_t c_cflag;		/* control mode flags */
-	tcflag_t c_lflag;		/* local mode flags */
-	cc_t c_line;			/* line discipline */
-	cc_t c_cc[NCCS];		/* control characters */
-	speed_t c_ispeed;		/* input speed */
-	speed_t c_ospeed;		/* output speed */
-};
-
-struct ktermios {
-	tcflag_t c_iflag;		/* input mode flags */
-	tcflag_t c_oflag;		/* output mode flags */
-	tcflag_t c_cflag;		/* control mode flags */
-	tcflag_t c_lflag;		/* local mode flags */
-	cc_t c_line;			/* line discipline */
-	cc_t c_cc[NCCS];		/* control characters */
-	speed_t c_ispeed;		/* input speed */
-	speed_t c_ospeed;		/* output speed */
-};
-
-/* c_cc characters */
-#define VINTR 0
-#define VQUIT 1
-#define VERASE 2
-#define VKILL 3
-#define VEOF 4
-#define VTIME 5
-#define VMIN 6
-#define VSWTC 7
-#define VSTART 8
-#define VSTOP 9
-#define VSUSP 10
-#define VEOL 11
-#define VREPRINT 12
-#define VDISCARD 13
-#define VWERASE 14
-#define VLNEXT 15
-#define VEOL2 16
-
-
-/* c_iflag bits */
-#define IGNBRK	0000001
-#define BRKINT	0000002
-#define IGNPAR	0000004
-#define PARMRK	0000010
-#define INPCK	0000020
-#define ISTRIP	0000040
-#define INLCR	0000100
-#define IGNCR	0000200
-#define ICRNL	0000400
-#define IUCLC	0001000
-#define IXON	0002000
-#define IXANY	0004000
-#define IXOFF	0010000
-#define IMAXBEL	0020000
-#define IUTF8	0040000
-
-/* c_oflag bits */
-#define OPOST	0000001
-#define OLCUC	0000002
-#define ONLCR	0000004
-#define OCRNL	0000010
-#define ONOCR	0000020
-#define ONLRET	0000040
-#define OFILL	0000100
-#define OFDEL	0000200
-#define NLDLY	0000400
-#define   NL0	0000000
-#define   NL1	0000400
-#define CRDLY	0003000
-#define   CR0	0000000
-#define   CR1	0001000
-#define   CR2	0002000
-#define   CR3	0003000
-#define TABDLY	0014000
-#define   TAB0	0000000
-#define   TAB1	0004000
-#define   TAB2	0010000
-#define   TAB3	0014000
-#define   XTABS	0014000
-#define BSDLY	0020000
-#define   BS0	0000000
-#define   BS1	0020000
-#define VTDLY	0040000
-#define   VT0	0000000
-#define   VT1	0040000
-#define FFDLY	0100000
-#define   FF0	0000000
-#define   FF1	0100000
-
-/* c_cflag bit meaning */
-#define CBAUD	0010017
-#define  B0	0000000		/* hang up */
-#define  B50	0000001
-#define  B75	0000002
-#define  B110	0000003
-#define  B134	0000004
-#define  B150	0000005
-#define  B200	0000006
-#define  B300	0000007
-#define  B600	0000010
-#define  B1200	0000011
-#define  B1800	0000012
-#define  B2400	0000013
-#define  B4800	0000014
-#define  B9600	0000015
-#define  B19200	0000016
-#define  B38400	0000017
-#define EXTA B19200
-#define EXTB B38400
-#define CSIZE	0000060
-#define   CS5	0000000
-#define   CS6	0000020
-#define   CS7	0000040
-#define   CS8	0000060
-#define CSTOPB	0000100
-#define CREAD	0000200
-#define PARENB	0000400
-#define PARODD	0001000
-#define HUPCL	0002000
-#define CLOCAL	0004000
-#define CBAUDEX 0010000
-#define    BOTHER 0010000
-#define    B57600 0010001
-#define   B115200 0010002
-#define   B230400 0010003
-#define   B460800 0010004
-#define   B500000 0010005
-#define   B576000 0010006
-#define   B921600 0010007
-#define  B1000000 0010010
-#define  B1152000 0010011
-#define  B1500000 0010012
-#define  B2000000 0010013
-#define  B2500000 0010014
-#define  B3000000 0010015
-#define  B3500000 0010016
-#define  B4000000 0010017
-#define CIBAUD	  002003600000		/* input baud rate */
-#define CMSPAR	  010000000000		/* mark or space (stick) parity */
-#define CRTSCTS	  020000000000		/* flow control */
-
-#define IBSHIFT	  16			/* shift from CBAUD to CIBAUD */
-
-/* c_lflag bits */
-#define ISIG	0000001
-#define ICANON	0000002
-#define XCASE	0000004
-#define ECHO	0000010
-#define ECHOE	0000020
-#define ECHOK	0000040
-#define ECHONL	0000100
-#define NOFLSH	0000200
-#define TOSTOP	0000400
-#define ECHOCTL	0001000
-#define ECHOPRT	0002000
-#define ECHOKE	0004000
-#define FLUSHO	0010000
-#define PENDIN	0040000
-#define IEXTEN	0100000
-#define EXTPROC	0200000
-
-
-/* tcflow() and TCXONC use these */
-#define	TCOOFF		0
-#define	TCOON		1
-#define	TCIOFF		2
-#define	TCION		3
-
-/* tcflush() and TCFLSH use these */
-#define	TCIFLUSH	0
-#define	TCOFLUSH	1
-#define	TCIOFLUSH	2
-
-/* tcsetattr uses these */
-#define	TCSANOW		0
-#define	TCSADRAIN	1
-#define	TCSAFLUSH	2
-
-#endif /* __ARCH_H8300_TERMBITS_H__ */
diff --git a/arch/h8300/include/uapi/asm/termios.h b/arch/h8300/include/uapi/asm/termios.h
deleted file mode 100644
index 5a67d7e38843..000000000000
--- a/arch/h8300/include/uapi/asm/termios.h
+++ /dev/null
@@ -1,44 +0,0 @@
-#ifndef _UAPI_H8300_TERMIOS_H
-#define _UAPI_H8300_TERMIOS_H
-
-#include <asm/termbits.h>
-#include <asm/ioctls.h>
- 
-struct winsize {
-	unsigned short ws_row;
-	unsigned short ws_col;
-	unsigned short ws_xpixel;
-	unsigned short ws_ypixel;
-};
-
-#define NCC 8
-struct termio {
-	unsigned short c_iflag;		/* input mode flags */
-	unsigned short c_oflag;		/* output mode flags */
-	unsigned short c_cflag;		/* control mode flags */
-	unsigned short c_lflag;		/* local mode flags */
-	unsigned char c_line;		/* line discipline */
-	unsigned char c_cc[NCC];	/* control characters */
-};
-
-
-/* modem lines */
-#define TIOCM_LE	0x001
-#define TIOCM_DTR	0x002
-#define TIOCM_RTS	0x004
-#define TIOCM_ST	0x008
-#define TIOCM_SR	0x010
-#define TIOCM_CTS	0x020
-#define TIOCM_CAR	0x040
-#define TIOCM_RNG	0x080
-#define TIOCM_DSR	0x100
-#define TIOCM_CD	TIOCM_CAR
-#define TIOCM_RI	TIOCM_RNG
-#define TIOCM_OUT1	0x2000
-#define TIOCM_OUT2	0x4000
-#define TIOCM_LOOP	0x8000
-
-/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
-
-
-#endif /* _UAPI_H8300_TERMIOS_H */
diff --git a/arch/h8300/include/uapi/asm/types.h b/arch/h8300/include/uapi/asm/types.h
deleted file mode 100644
index 9ec9d4c5ac4d..000000000000
--- a/arch/h8300/include/uapi/asm/types.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/int-ll64.h>
diff --git a/arch/h8300/include/uapi/asm/unistd.h b/arch/h8300/include/uapi/asm/unistd.h
deleted file mode 100644
index 8cb5d429f840..000000000000
--- a/arch/h8300/include/uapi/asm/unistd.h
+++ /dev/null
@@ -1,330 +0,0 @@
-#ifndef _UAPI_ASM_H8300_UNISTD_H_
-#define _UAPI_ASM_H8300_UNISTD_H_
-
-/*
- * This file contains the system call numbers.
- */
-
-#define __NR_restart_syscall      0
-#define __NR_exit		  1
-#define __NR_fork		  2
-#define __NR_read		  3
-#define __NR_write		  4
-#define __NR_open		  5
-#define __NR_close		  6
-#define __NR_waitpid		  7
-#define __NR_creat		  8
-#define __NR_link		  9
-#define __NR_unlink		 10
-#define __NR_execve		 11
-#define __NR_chdir		 12
-#define __NR_time		 13
-#define __NR_mknod		 14
-#define __NR_chmod		 15
-#define __NR_lchown		 16
-#define __NR_break		 17
-#define __NR_oldstat		 18
-#define __NR_lseek		 19
-#define __NR_getpid		 20
-#define __NR_mount		 21
-#define __NR_umount		 22
-#define __NR_setuid		 23
-#define __NR_getuid		 24
-#define __NR_stime		 25
-#define __NR_ptrace		 26
-#define __NR_alarm		 27
-#define __NR_oldfstat		 28
-#define __NR_pause		 29
-#define __NR_utime		 30
-#define __NR_stty		 31
-#define __NR_gtty		 32
-#define __NR_access		 33
-#define __NR_nice		 34
-#define __NR_ftime		 35
-#define __NR_sync		 36
-#define __NR_kill		 37
-#define __NR_rename		 38
-#define __NR_mkdir		 39
-#define __NR_rmdir		 40
-#define __NR_dup		 41
-#define __NR_pipe		 42
-#define __NR_times		 43
-#define __NR_prof		 44
-#define __NR_brk		 45
-#define __NR_setgid		 46
-#define __NR_getgid		 47
-#define __NR_signal		 48
-#define __NR_geteuid		 49
-#define __NR_getegid		 50
-#define __NR_acct		 51
-#define __NR_umount2		 52
-#define __NR_lock		 53
-#define __NR_ioctl		 54
-#define __NR_fcntl		 55
-#define __NR_mpx		 56
-#define __NR_setpgid		 57
-#define __NR_ulimit		 58
-#define __NR_oldolduname	 59
-#define __NR_umask		 60
-#define __NR_chroot		 61
-#define __NR_ustat		 62
-#define __NR_dup2		 63
-#define __NR_getppid		 64
-#define __NR_getpgrp		 65
-#define __NR_setsid		 66
-#define __NR_sigaction		 67
-#define __NR_sgetmask		 68
-#define __NR_ssetmask		 69
-#define __NR_setreuid		 70
-#define __NR_setregid		 71
-#define __NR_sigsuspend		 72
-#define __NR_sigpending		 73
-#define __NR_sethostname	 74
-#define __NR_setrlimit		 75
-#define __NR_getrlimit		 76
-#define __NR_getrusage		 77
-#define __NR_gettimeofday	 78
-#define __NR_settimeofday	 79
-#define __NR_getgroups		 80
-#define __NR_setgroups		 81
-#define __NR_select		 82
-#define __NR_symlink		 83
-#define __NR_oldlstat		 84
-#define __NR_readlink		 85
-#define __NR_uselib		 86
-#define __NR_swapon		 87
-#define __NR_reboot		 88
-#define __NR_readdir		 89
-#define __NR_mmap		 90
-#define __NR_munmap		 91
-#define __NR_truncate		 92
-#define __NR_ftruncate		 93
-#define __NR_fchmod		 94
-#define __NR_fchown		 95
-#define __NR_getpriority	 96
-#define __NR_setpriority	 97
-#define __NR_profil		 98
-#define __NR_statfs		 99
-#define __NR_fstatfs		100
-#define __NR_ioperm		101
-#define __NR_socketcall		102
-#define __NR_syslog		103
-#define __NR_setitimer		104
-#define __NR_getitimer		105
-#define __NR_stat		106
-#define __NR_lstat		107
-#define __NR_fstat		108
-#define __NR_olduname		109
-#define __NR_iopl		110
-#define __NR_vhangup		111
-#define __NR_idle		112
-#define __NR_vm86old		113
-#define __NR_wait4		114
-#define __NR_swapoff		115
-#define __NR_sysinfo		116
-#define __NR_ipc		117
-#define __NR_fsync		118
-#define __NR_sigreturn		119
-#define __NR_clone		120
-#define __NR_setdomainname	121
-#define __NR_uname		122
-#define __NR_modify_ldt		123
-#define __NR_adjtimex		124
-#define __NR_mprotect		125
-#define __NR_sigprocmask	126
-#define __NR_create_module	127
-#define __NR_init_module	128
-#define __NR_delete_module	129
-#define __NR_get_kernel_syms	130
-#define __NR_quotactl		131
-#define __NR_getpgid		132
-#define __NR_fchdir		133
-#define __NR_bdflush		134
-#define __NR_sysfs		135
-#define __NR_personality	136
-#define __NR_afs_syscall	137 /* Syscall for Andrew File System */
-#define __NR_setfsuid		138
-#define __NR_setfsgid		139
-#define __NR__llseek		140
-#define __NR_getdents		141
-#define __NR__newselect		142
-#define __NR_flock		143
-#define __NR_msync		144
-#define __NR_readv		145
-#define __NR_writev		146
-#define __NR_getsid		147
-#define __NR_fdatasync		148
-#define __NR__sysctl		149
-#define __NR_mlock		150
-#define __NR_munlock		151
-#define __NR_mlockall		152
-#define __NR_munlockall		153
-#define __NR_sched_setparam		154
-#define __NR_sched_getparam		155
-#define __NR_sched_setscheduler		156
-#define __NR_sched_getscheduler		157
-#define __NR_sched_yield		158
-#define __NR_sched_get_priority_max	159
-#define __NR_sched_get_priority_min	160
-#define __NR_sched_rr_get_interval	161
-#define __NR_nanosleep		162
-#define __NR_mremap		163
-#define __NR_setresuid		164
-#define __NR_getresuid		165
-#define __NR_vm86		166
-#define __NR_query_module	167
-#define __NR_poll		168
-#define __NR_nfsservctl		169
-#define __NR_setresgid		170
-#define __NR_getresgid		171
-#define __NR_prctl		172
-#define __NR_rt_sigreturn	173
-#define __NR_rt_sigaction	174
-#define __NR_rt_sigprocmask	175
-#define __NR_rt_sigpending	176
-#define __NR_rt_sigtimedwait	177
-#define __NR_rt_sigqueueinfo	178
-#define __NR_rt_sigsuspend	179
-#define __NR_pread64		180
-#define __NR_pwrite64		181
-#define __NR_chown		182
-#define __NR_getcwd		183
-#define __NR_capget		184
-#define __NR_capset		185
-#define __NR_sigaltstack	186
-#define __NR_sendfile		187
-#define __NR_getpmsg		188	/* some people actually want streams */
-#define __NR_putpmsg		189	/* some people actually want streams */
-#define __NR_vfork		190
-#define __NR_ugetrlimit		191
-#define __NR_mmap2		192
-#define __NR_truncate64		193
-#define __NR_ftruncate64	194
-#define __NR_stat64		195
-#define __NR_lstat64		196
-#define __NR_fstat64		197
-#define __NR_lchown32		198
-#define __NR_getuid32		199
-#define __NR_getgid32		200
-#define __NR_geteuid32		201
-#define __NR_getegid32		202
-#define __NR_setreuid32		203
-#define __NR_setregid32		204
-#define __NR_getgroups32	205
-#define __NR_setgroups32	206
-#define __NR_fchown32		207
-#define __NR_setresuid32	208
-#define __NR_getresuid32	209
-#define __NR_setresgid32	210
-#define __NR_getresgid32	211
-#define __NR_chown32		212
-#define __NR_setuid32		213
-#define __NR_setgid32		214
-#define __NR_setfsuid32		215
-#define __NR_setfsgid32		216
-#define __NR_pivot_root		217
-#define __NR_mincore		218
-#define __NR_madvise		219
-#define __NR_madvise1		219
-#define __NR_getdents64		220
-#define __NR_fcntl64		221
-/* 223 is unused */
-#define __NR_gettid		224
-#define __NR_readahead		225
-#define __NR_setxattr		226
-#define __NR_lsetxattr		227
-#define __NR_fsetxattr		228
-#define __NR_getxattr		229
-#define __NR_lgetxattr		230
-#define __NR_fgetxattr		231
-#define __NR_listxattr		232
-#define __NR_llistxattr		233
-#define __NR_flistxattr		234
-#define __NR_removexattr	235
-#define __NR_lremovexattr	236
-#define __NR_fremovexattr	237
-#define __NR_tkill		238
-#define __NR_sendfile64		239
-#define __NR_futex		240
-#define __NR_sched_setaffinity	241
-#define __NR_sched_getaffinity	242
-#define __NR_set_thread_area	243
-#define __NR_get_thread_area	244
-#define __NR_io_setup		245
-#define __NR_io_destroy		246
-#define __NR_io_getevents	247
-#define __NR_io_submit		248
-#define __NR_io_cancel		249
-#define __NR_fadvise64		250
-/* 251 is available for reuse (was briefly sys_set_zone_reclaim) */
-#define __NR_exit_group		252
-#define __NR_lookup_dcookie	253
-#define __NR_epoll_create	254
-#define __NR_epoll_ctl		255
-#define __NR_epoll_wait		256
-#define __NR_remap_file_pages	257
-#define __NR_set_tid_address	258
-#define __NR_timer_create	259
-#define __NR_timer_settime	(__NR_timer_create+1)
-#define __NR_timer_gettime	(__NR_timer_create+2)
-#define __NR_timer_getoverrun	(__NR_timer_create+3)
-#define __NR_timer_delete	(__NR_timer_create+4)
-#define __NR_clock_settime	(__NR_timer_create+5)
-#define __NR_clock_gettime	(__NR_timer_create+6)
-#define __NR_clock_getres	(__NR_timer_create+7)
-#define __NR_clock_nanosleep	(__NR_timer_create+8)
-#define __NR_statfs64		268
-#define __NR_fstatfs64		269
-#define __NR_tgkill		270
-#define __NR_utimes		271
-#define __NR_fadvise64_64	272
-#define __NR_vserver		273
-#define __NR_mbind		274
-#define __NR_get_mempolicy	275
-#define __NR_set_mempolicy	276
-#define __NR_mq_open 		277
-#define __NR_mq_unlink		(__NR_mq_open+1)
-#define __NR_mq_timedsend	(__NR_mq_open+2)
-#define __NR_mq_timedreceive	(__NR_mq_open+3)
-#define __NR_mq_notify		(__NR_mq_open+4)
-#define __NR_mq_getsetattr	(__NR_mq_open+5)
-#define __NR_kexec_load		283
-#define __NR_waitid		284
-/* #define __NR_sys_setaltroot	285 */
-#define __NR_add_key		286
-#define __NR_request_key	287
-#define __NR_keyctl		288
-#define __NR_ioprio_set		289
-#define __NR_ioprio_get		290
-#define __NR_inotify_init	291
-#define __NR_inotify_add_watch	292
-#define __NR_inotify_rm_watch	293
-#define __NR_migrate_pages	294
-#define __NR_openat		295
-#define __NR_mkdirat		296
-#define __NR_mknodat		297
-#define __NR_fchownat		298
-#define __NR_futimesat		299
-#define __NR_fstatat64		300
-#define __NR_unlinkat		301
-#define __NR_renameat		302
-#define __NR_linkat		303
-#define __NR_symlinkat		304
-#define __NR_readlinkat		305
-#define __NR_fchmodat		306
-#define __NR_faccessat		307
-#define __NR_pselect6		308
-#define __NR_ppoll		309
-#define __NR_unshare		310
-#define __NR_set_robust_list	311
-#define __NR_get_robust_list	312
-#define __NR_splice		313
-#define __NR_sync_file_range	314
-#define __NR_tee		315
-#define __NR_vmsplice		316
-#define __NR_move_pages		317
-#define __NR_getcpu		318
-#define __NR_epoll_pwait	319
-#define __NR_setns		320
-
-#endif /* _UAPI_ASM_H8300_UNISTD_H_ */
diff --git a/arch/h8300/kernel/Makefile b/arch/h8300/kernel/Makefile
deleted file mode 100644
index 1cc57f872d34..000000000000
--- a/arch/h8300/kernel/Makefile
+++ /dev/null
@@ -1,12 +0,0 @@
-#
-# Makefile for the linux kernel.
-#
-
-extra-y := vmlinux.lds
-
-obj-y := process.o traps.o ptrace.o irq.o \
-	 sys_h8300.o time.o signal.o \
-         setup.o gpio.o syscalls.o \
-	 entry.o timer/
-
-obj-$(CONFIG_MODULES) += module.o h8300_ksyms.o 
diff --git a/arch/h8300/kernel/asm-offsets.c b/arch/h8300/kernel/asm-offsets.c
deleted file mode 100644
index fd961e0bd741..000000000000
--- a/arch/h8300/kernel/asm-offsets.c
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * This program is used to generate definitions needed by
- * assembly language modules.
- *
- * We use the technique used in the OSF Mach kernel code:
- * generate asm statements containing #defines,
- * compile this file to assembler, and then extract the
- * #defines from the assembly-language output.
- */
-
-#include <linux/stddef.h>
-#include <linux/sched.h>
-#include <linux/kernel_stat.h>
-#include <linux/ptrace.h>
-#include <linux/hardirq.h>
-#include <linux/kbuild.h>
-#include <asm/bootinfo.h>
-#include <asm/irq.h>
-#include <asm/ptrace.h>
-
-int main(void)
-{
-	/* offsets into the task struct */
-	DEFINE(TASK_STATE, offsetof(struct task_struct, state));
-	DEFINE(TASK_FLAGS, offsetof(struct task_struct, flags));
-	DEFINE(TASK_PTRACE, offsetof(struct task_struct, ptrace));
-	DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked));
-	DEFINE(TASK_THREAD, offsetof(struct task_struct, thread));
-	DEFINE(TASK_THREAD_INFO, offsetof(struct task_struct, stack));
-	DEFINE(TASK_MM, offsetof(struct task_struct, mm));
-	DEFINE(TASK_ACTIVE_MM, offsetof(struct task_struct, active_mm));
-
-	/* offsets into the irq_cpustat_t struct */
-	DEFINE(CPUSTAT_SOFTIRQ_PENDING, offsetof(irq_cpustat_t, __softirq_pending));
-
-	/* offsets into the thread struct */
-	DEFINE(THREAD_KSP, offsetof(struct thread_struct, ksp));
-	DEFINE(THREAD_USP, offsetof(struct thread_struct, usp));
-	DEFINE(THREAD_CCR, offsetof(struct thread_struct, ccr));
-
-	/* offsets into the pt_regs struct */
-	DEFINE(LER0,  offsetof(struct pt_regs, er0)      - sizeof(long));
-	DEFINE(LER1,  offsetof(struct pt_regs, er1)      - sizeof(long));
-	DEFINE(LER2,  offsetof(struct pt_regs, er2)      - sizeof(long));
-	DEFINE(LER3,  offsetof(struct pt_regs, er3)      - sizeof(long));
-	DEFINE(LER4,  offsetof(struct pt_regs, er4)      - sizeof(long));
-	DEFINE(LER5,  offsetof(struct pt_regs, er5)      - sizeof(long));
-	DEFINE(LER6,  offsetof(struct pt_regs, er6)      - sizeof(long));
-	DEFINE(LORIG, offsetof(struct pt_regs, orig_er0) - sizeof(long));
-	DEFINE(LCCR,  offsetof(struct pt_regs, ccr)      - sizeof(long));
-	DEFINE(LVEC,  offsetof(struct pt_regs, vector)   - sizeof(long));
-#if defined(__H8300S__)
-	DEFINE(LEXR,  offsetof(struct pt_regs, exr)      - sizeof(long));
-#endif
-	DEFINE(LRET,  offsetof(struct pt_regs, pc)       - sizeof(long));
-
-	DEFINE(PT_PTRACED, PT_PTRACED);
-
-	return 0;
-}
diff --git a/arch/h8300/kernel/entry.S b/arch/h8300/kernel/entry.S
deleted file mode 100644
index 94bd30f11df6..000000000000
--- a/arch/h8300/kernel/entry.S
+++ /dev/null
@@ -1,402 +0,0 @@
-/* -*- mode: asm -*-
- *
- *  linux/arch/h8300/platform/h8300h/entry.S
- *
- *  Yoshinori Sato <ysato@users.sourceforge.jp>
- *  David McCullough <davidm@snapgear.com>
- *
- */
-
-/*
- *  entry.S
- *  include exception/interrupt gateway
- *          system call entry
- */
-
-#include <linux/sys.h>
-#include <asm/unistd.h>
-#include <asm/setup.h>
-#include <asm/segment.h>
-#include <asm/linkage.h>
-#include <asm/asm-offsets.h>
-#include <asm/thread_info.h>
-#include <asm/errno.h>
-
-#if defined(CONFIG_CPU_H8300H)
-#define USERRET 8
-INTERRUPTS = 64
-	.h8300h
-	.macro	SHLL2 reg
-	shll.l	\reg
-	shll.l	\reg
-	.endm
-	.macro	SHLR2 reg
-	shlr.l	\reg
-	shlr.l	\reg
-	.endm
-	.macro	SAVEREGS
-	mov.l	er0,@-sp
-	mov.l	er1,@-sp
-	mov.l	er2,@-sp
-	mov.l	er3,@-sp
-	.endm
-	.macro	RESTOREREGS
-	mov.l	@sp+,er3
-	mov.l	@sp+,er2
-	.endm
-	.macro	SAVEEXR
-	.endm
-	.macro	RESTOREEXR
-	.endm
-#endif
-#if defined(CONFIG_CPU_H8S)
-#define USERRET 10
-#define USEREXR 8
-INTERRUPTS = 128
-	.h8300s
-	.macro	SHLL2 reg
-	shll.l	#2,\reg
-	.endm
-	.macro	SHLR2 reg
-	shlr.l	#2,\reg
-	.endm
-	.macro	SAVEREGS
-	stm.l	er0-er3,@-sp
-	.endm
-	.macro	RESTOREREGS
-	ldm.l	@sp+,er2-er3
-	.endm
-	.macro	SAVEEXR
-	mov.w	@(USEREXR:16,er0),r1
-	mov.w	r1,@(LEXR-LER3:16,sp)		/* copy EXR */
-	.endm
-	.macro	RESTOREEXR
-	mov.w	@(LEXR-LER1:16,sp),r1		/* restore EXR */
-	mov.b	r1l,r1h
-	mov.w	r1,@(USEREXR:16,er0)
-	.endm
-#endif
-
-
-/* CPU context save/restore macros. */
-
-	.macro	SAVE_ALL
-	mov.l	er0,@-sp
-	stc	ccr,r0l				/* check kernel mode */
-	btst	#4,r0l
-	bne	5f
-
-	/* user mode */
-	mov.l	sp,@_sw_usp
-	mov.l	@sp,er0				/* restore saved er0 */
-	orc	#0x10,ccr			/* switch kernel stack */
-	mov.l	@_sw_ksp,sp
-	sub.l	#(LRET-LORIG),sp		/* allocate LORIG - LRET */
-	SAVEREGS
-	mov.l   @_sw_usp,er0
-	mov.l   @(USERRET:16,er0),er1           /* copy the RET addr */
-	mov.l   er1,@(LRET-LER3:16,sp)
-	SAVEEXR
-
-	mov.l	@(LORIG-LER3:16,sp),er0
-	mov.l	er0,@(LER0-LER3:16,sp)		/* copy ER0 */
-	mov.w	e1,r1				/* e1 highbyte = ccr */
-	and	#0xef,r1h			/* mask mode? flag */
-	bra	6f
-5:
-	/* kernel mode */
-	mov.l	@sp,er0				/* restore saved er0 */
-	subs	#2,sp				/* set dummy ccr */
-	SAVEREGS
-	mov.w	@(LRET-LER3:16,sp),r1		/* copy old ccr */
-6:
-	mov.b	r1h,r1l
-	mov.b	#0,r1h
-	mov.w	r1,@(LCCR-LER3:16,sp)		/* set ccr */
-	mov.l	er6,@-sp			/* syscall arg #6 */
-	mov.l	er5,@-sp			/* syscall arg #5 */
-	mov.l	er4,@-sp			/* syscall arg #4 */
-	.endm					/* r1 = ccr */
-
-	.macro	RESTORE_ALL
-	mov.l	@sp+,er4
-	mov.l	@sp+,er5
-	mov.l	@sp+,er6
-	RESTOREREGS
-	mov.w	@(LCCR-LER1:16,sp),r0		/* check kernel mode */
-	btst	#4,r0l
-	bne	7f
-
-	orc	#0x80,ccr
-	mov.l	@_sw_usp,er0
-	mov.l	@(LER0-LER1:16,sp),er1		/* restore ER0 */
-	mov.l	er1,@er0
-	RESTOREEXR
-	mov.w	@(LCCR-LER1:16,sp),r1		/* restore the RET addr */
-	mov.b	r1l,r1h
-	mov.b	@(LRET+1-LER1:16,sp),r1l
-	mov.w	r1,e1
-	mov.w	@(LRET+2-LER1:16,sp),r1
-	mov.l	er1,@(USERRET:16,er0)
-
-	mov.l	@sp+,er1
-	add.l	#(LRET-LER1),sp			/* remove LORIG - LRET */
-	mov.l	sp,@_sw_ksp
-	andc	#0xef,ccr			/* switch to user mode */
-	mov.l	er0,sp
-	bra	8f
-7:
-	mov.l	@sp+,er1
-	adds	#4,sp
-	adds	#2,sp
-8:
-	mov.l	@sp+,er0
-	adds	#4,sp				/* remove the sw created LVEC */
-	rte
-	.endm
-
-.globl _system_call
-.globl _ret_from_exception
-.globl _ret_from_fork
-.globl _ret_from_kernel_thread
-.globl _ret_from_interrupt
-.globl _interrupt_redirect_table
-.globl _sw_ksp,_sw_usp
-.globl _resume
-.globl _interrupt_entry
-.globl _trace_break
-
-#if defined(CONFIG_ROMKERNEL)
-	.section .int_redirect,"ax"
-_interrupt_redirect_table:
-#if defined(CONFIG_CPU_H8300H)
-	.rept	7
-	.long	0
-	.endr
-#endif
-#if defined(CONFIG_CPU_H8S)
-	.rept	5
-	.long	0
-	.endr
-	jmp	@_trace_break
-	.long	0
-#endif
-
-	jsr	@_interrupt_entry		/* NMI */
-	jmp	@_system_call			/* TRAPA #0 (System call) */
-	.long	0
-	.long	0
-	jmp	@_trace_break			/* TRAPA #3 (breakpoint) */
-	.rept	INTERRUPTS-12
-	jsr	@_interrupt_entry
-	.endr
-#endif
-#if defined(CONFIG_RAMKERNEL)
-.globl _interrupt_redirect_table
-	.section .bss
-_interrupt_redirect_table:
-	.space	4
-#endif
-
-	.section .text
-	.align	2
-_interrupt_entry:
-	SAVE_ALL
-	mov.l	sp,er0
-	add.l	#LVEC,er0
-	btst	#4,r1l
-	bne	1f
-	/* user LVEC */
-	mov.l	@_sw_usp,er0
-	adds	#4,er0
-1:
-	mov.l	@er0,er0			/* LVEC address */
-#if defined(CONFIG_ROMKERNEL)
-	sub.l	#_interrupt_redirect_table,er0
-#endif
-#if defined(CONFIG_RAMKERNEL)
-	mov.l	@_interrupt_redirect_table,er1
-	sub.l	er1,er0
-#endif
-	SHLR2	er0
-	dec.l	#1,er0
-	mov.l	sp,er1
-	subs	#4,er1				/* adjust ret_pc */
-	jsr	@_do_IRQ
-	jmp	@_ret_from_interrupt
-
-_system_call:
-	subs	#4,sp				/* dummy LVEC */
-	SAVE_ALL
-	andc	#0x7f,ccr
-	mov.l	er0,er4
-
-	/* save top of frame */
-	mov.l	sp,er0
-	jsr	@_set_esp0
-	mov.l	sp,er2
-	and.w	#0xe000,r2
-	mov.b	@((TI_FLAGS+3-(TIF_SYSCALL_TRACE >> 3)):16,er2),r2l
-	btst	#(TIF_SYSCALL_TRACE & 7),r2l
-	beq	1f
-	jsr	@_do_syscall_trace
-1:
-	cmp.l	#NR_syscalls,er4
-	bcc	badsys
-	SHLL2	er4
-	mov.l	#_sys_call_table,er0
-	add.l	er4,er0
-	mov.l	@er0,er4
-	beq	_ret_from_exception:16
-	mov.l	@(LER1:16,sp),er0
-	mov.l	@(LER2:16,sp),er1
-	mov.l	@(LER3:16,sp),er2
-	jsr	@er4
-	mov.l	er0,@(LER0:16,sp)		/* save the return value */
-	mov.l	sp,er2
-	and.w	#0xe000,r2
-	mov.b	@((TI_FLAGS+3-(TIF_SYSCALL_TRACE >> 3)):16,er2),r2l
-	btst	#(TIF_SYSCALL_TRACE & 7),r2l
-	beq	2f
-	jsr	@_do_syscall_trace
-2:
-#if defined(CONFIG_SYSCALL_PRINT)
-	jsr	@_syscall_print
-#endif
-	orc	#0x80,ccr
-	bra	resume_userspace
-
-badsys:
-	mov.l	#-ENOSYS,er0
-	mov.l	er0,@(LER0:16,sp)
-	bra	resume_userspace
-
-#if !defined(CONFIG_PREEMPT)
-#define resume_kernel restore_all
-#endif
-
-_ret_from_exception:
-#if defined(CONFIG_PREEMPT)
-	orc	#0x80,ccr
-#endif
-_ret_from_interrupt:
-	mov.b	@(LCCR+1:16,sp),r0l
-	btst	#4,r0l
-	bne	resume_kernel:8		/* return from kernel */
-resume_userspace:
-	andc	#0x7f,ccr
-	mov.l	sp,er4
-	and.w	#0xe000,r4		/* er4 <- current thread info */
-	mov.l	@(TI_FLAGS:16,er4),er1
-	and.l	#_TIF_WORK_MASK,er1
-	beq	restore_all:8
-work_pending:
-	btst	#TIF_NEED_RESCHED,r1l
-	bne	work_resched:8
-	/* work notifysig */
-	mov.l	sp,er0
-	subs	#4,er0			/* er0: pt_regs */
-	jsr	@_do_notify_resume
-	bra	restore_all:8
-work_resched:
-	mov.l	sp,er0
-	jsr	@_set_esp0
-	jsr	@_schedule
-	bra	resume_userspace:8
-restore_all:
-	RESTORE_ALL			/* Does RTE */
-
-#if defined(CONFIG_PREEMPT)
-resume_kernel:
-	mov.l	@(TI_PRE_COUNT:16,er4),er0
-	bne	restore_all:8
-need_resched:
-	mov.l	@(TI_FLAGS:16,er4),er0
-	btst	#TIF_NEED_RESCHED,r0l
-	beq	restore_all:8
-	mov.b	@(LCCR+1:16,sp),r0l	/* Interrupt Enabled? */
-	bmi	restore_all:8
-	mov.l	#PREEMPT_ACTIVE,er0
-	mov.l	er0,@(TI_PRE_COUNT:16,er4)
-	andc	#0x7f,ccr
-	mov.l	sp,er0
-	jsr	@_set_esp0
-	jsr	@_schedule
-	orc	#0x80,ccr
-	bra	need_resched:8
-#endif
-
-_ret_from_fork:
-	mov.l	er2,er0
-	jsr	@_schedule_tail
-	jmp	@_ret_from_exception
-
-_ret_from_kernel_thread:
-	mov.l	er2,er0
-	jsr	@_schedule_tail
-	mov.l	@(LER4:16,sp),er0
-	mov.l	@(LER5:16,sp),er1
-	jsr	@er1
-	jmp	@_ret_from_exception
-
-_resume:
-	/*
-	 * Beware - when entering resume, offset of tss is in d1,
-	 * prev (the current task) is in a0, next (the new task)
-	 * is in a1 and d2.b is non-zero if the mm structure is
-	 * shared between the tasks, so don't change these
-	 * registers until their contents are no longer needed.
-	 */
-
-	/* save sr */
-	sub.w	r3,r3
-	stc	ccr,r3l
-	mov.w	r3,@(THREAD_CCR+2:16,er0)
-
-	/* disable interrupts */
-	orc	#0x80,ccr
-	mov.l	@_sw_usp,er3
-	mov.l	er3,@(THREAD_USP:16,er0)
-	mov.l	sp,@(THREAD_KSP:16,er0)
-
-	/* Skip address space switching if they are the same. */
-	/* FIXME: what did we hack out of here, this does nothing! */
-
-	mov.l	@(THREAD_USP:16,er1),er0
-	mov.l	er0,@_sw_usp
-	mov.l	@(THREAD_KSP:16,er1),sp
-
-	/* restore status register */
-	mov.w	@(THREAD_CCR+2:16,er1),r3
-
-	ldc	r3l,ccr
-	rts
-
-_trace_break:
-	subs	#4,sp
-	SAVE_ALL
-	sub.l	er1,er1
-	dec.l	#1,er1
-	mov.l	er1,@(LORIG,sp)
-	mov.l	sp,er0
-	jsr	@_set_esp0
-	mov.l	@_sw_usp,er0
-	mov.l	@er0,er1
-	mov.w	@(-2:16,er1),r2
-	cmp.w	#0x5730,r2
-	beq	1f
-	subs	#2,er1
-	mov.l	er1,@er0
-1:
-	and.w	#0xff,e1
-	mov.l	er1,er0
-	jsr	@_trace_trap
-	jmp	@_ret_from_exception
-
-	.section	.bss
-_sw_ksp:
-	.space	4
-_sw_usp:
-	.space	4
-
-	.end
diff --git a/arch/h8300/kernel/gpio.c b/arch/h8300/kernel/gpio.c
deleted file mode 100644
index 084bfd0c107e..000000000000
--- a/arch/h8300/kernel/gpio.c
+++ /dev/null
@@ -1,178 +0,0 @@
-/*
- *  linux/arch/h8300/kernel/gpio.c
- *
- *  Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- */
-
-/*
- * Internal I/O Port Management
- */
-
-#include <linux/stddef.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/fs.h>
-#include <linux/init.h>
-
-#define _(addr) (volatile unsigned char *)(addr)
-#if defined(CONFIG_H83007) || defined(CONFIG_H83068)
-#include <asm/regs306x.h>
-static volatile unsigned char *ddrs[] = {
-	_(P1DDR),_(P2DDR),_(P3DDR),_(P4DDR),_(P5DDR),_(P6DDR),
-	NULL,    _(P8DDR),_(P9DDR),_(PADDR),_(PBDDR),
-};
-#define MAX_PORT 11
-#endif
-
- #if defined(CONFIG_H83002) || defined(CONFIG_H8048)
-/* Fix me!! */
-#include <asm/regs306x.h>
-static volatile unsigned char *ddrs[] = {
-	_(P1DDR),_(P2DDR),_(P3DDR),_(P4DDR),_(P5DDR),_(P6DDR),
-	NULL,    _(P8DDR),_(P9DDR),_(PADDR),_(PBDDR),
-};
-#define MAX_PORT 11
-#endif
-
-#if defined(CONFIG_H8S2678)
-#include <asm/regs267x.h>
-static volatile unsigned char *ddrs[] = {
-	_(P1DDR),_(P2DDR),_(P3DDR),NULL    ,_(P5DDR),_(P6DDR),
-	_(P7DDR),_(P8DDR),NULL,    _(PADDR),_(PBDDR),_(PCDDR),
-	_(PDDDR),_(PEDDR),_(PFDDR),_(PGDDR),_(PHDDR),
-	_(PADDR),_(PBDDR),_(PCDDR),_(PDDDR),_(PEDDR),_(PFDDR),
-	_(PGDDR),_(PHDDR)
-};
-#define MAX_PORT 17
-#endif
-#undef _
- 
-#if !defined(P1DDR)
-#error Unsuppoted CPU Selection
-#endif
-
-static struct {
-	unsigned char used;
-	unsigned char ddr;
-} gpio_regs[MAX_PORT];
-
-extern char *_platform_gpio_table(int length);
-
-int h8300_reserved_gpio(int port, unsigned int bits)
-{
-	unsigned char *used;
-
-	if (port < 0 || port >= MAX_PORT)
-		return -1;
-	used = &(gpio_regs[port].used);
-	if ((*used & bits) != 0)
-		return 0;
-	*used |= bits;
-	return 1;
-}
-
-int h8300_free_gpio(int port, unsigned int bits)
-{
-	unsigned char *used;
-
-	if (port < 0 || port >= MAX_PORT)
-		return -1;
-	used = &(gpio_regs[port].used);
-	if ((*used & bits) != bits)
-		return 0;
-	*used &= (~bits);
-	return 1;
-}
-
-int h8300_set_gpio_dir(int port_bit,int dir)
-{
-	int port = (port_bit >> 8) & 0xff;
-	int bit  = port_bit & 0xff;
-
-	if (ddrs[port] == NULL)
-		return 0;
-	if (gpio_regs[port].used & bit) {
-		if (dir)
-			gpio_regs[port].ddr |= bit;
-		else
-			gpio_regs[port].ddr &= ~bit;
-		*ddrs[port] = gpio_regs[port].ddr;
-		return 1;
-	} else
-		return 0;
-}
-
-int h8300_get_gpio_dir(int port_bit)
-{
-	int port = (port_bit >> 8) & 0xff;
-	int bit  = port_bit & 0xff;
-
-	if (ddrs[port] == NULL)
-		return 0;
-	if (gpio_regs[port].used & bit) {
-		return (gpio_regs[port].ddr & bit) != 0;
-	} else
-		return -1;
-}
-
-#if defined(CONFIG_PROC_FS)
-static char *port_status(int portno)
-{
-	static char result[10];
-	static const char io[2]={'I','O'};
-	char *rp;
-	int c;
-	unsigned char used,ddr;
-	
-	used = gpio_regs[portno].used;
-	ddr  = gpio_regs[portno].ddr;
-	result[8]='\0';
-	rp = result + 7;
-	for (c = 8; c > 0; c--,rp--,used >>= 1, ddr >>= 1)
-		if (used & 0x01)
-			*rp = io[ ddr & 0x01];
-		else	
-			*rp = '-';
-	return result;
-}
-
-static int gpio_proc_show(struct seq_file *m, void *v)
-{
-	static const char port_name[]="123456789ABCDEFGH";
-	int c;
-
-	for (c = 0; c < MAX_PORT; c++) {
-		if (ddrs[c] == NULL)
-			continue;
-		seq_printf(m, "P%c: %s\n", port_name[c], port_status(c));
-	}
-	return 0;
-}
-
-static int gpio_proc_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, gpio_proc_show, PDE_DATA(inode));
-}
-
-static const struct file_operations gpio_proc_fops = {
-	.open		= gpio_proc_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
-static __init int register_proc(void)
-{
-	return proc_create("gpio", S_IRUGO, NULL, &gpio_proc_fops) != NULL;
-}
-
-__initcall(register_proc);
-#endif
-
-void __init h8300_gpio_init(void)
-{
-	memcpy(gpio_regs,_platform_gpio_table(sizeof(gpio_regs)),sizeof(gpio_regs));
-}
diff --git a/arch/h8300/kernel/h8300_ksyms.c b/arch/h8300/kernel/h8300_ksyms.c
deleted file mode 100644
index 53d7c0e4bd83..000000000000
--- a/arch/h8300/kernel/h8300_ksyms.c
+++ /dev/null
@@ -1,100 +0,0 @@
-#include <linux/module.h>
-#include <linux/linkage.h>
-#include <linux/sched.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/user.h>
-#include <linux/elfcore.h>
-#include <linux/in6.h>
-#include <linux/interrupt.h>
-
-#include <asm/setup.h>
-#include <asm/pgalloc.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-#include <asm/checksum.h>
-#include <asm/current.h>
-#include <asm/gpio.h>
-
-//asmlinkage long long __ashrdi3 (long long, int);
-//asmlinkage long long __lshrdi3 (long long, int);
-extern char h8300_debug_device[];
-
-/* platform dependent support */
-
-EXPORT_SYMBOL(strnlen);
-EXPORT_SYMBOL(strrchr);
-EXPORT_SYMBOL(strstr);
-EXPORT_SYMBOL(strchr);
-EXPORT_SYMBOL(strcat);
-EXPORT_SYMBOL(strlen);
-EXPORT_SYMBOL(strcmp);
-EXPORT_SYMBOL(strncmp);
-
-EXPORT_SYMBOL(ip_fast_csum);
-
-EXPORT_SYMBOL(enable_irq);
-EXPORT_SYMBOL(disable_irq);
-
-/* Networking helper routines. */
-EXPORT_SYMBOL(csum_partial_copy_nocheck);
-
-/* The following are special because they're not called
-   explicitly (the C compiler generates them).  Fortunately,
-   their interface isn't gonna change any time soon now, so
-   it's OK to leave it out of version control.  */
-//EXPORT_SYMBOL(__ashrdi3);
-//EXPORT_SYMBOL(__lshrdi3);
-EXPORT_SYMBOL(memcpy);
-EXPORT_SYMBOL(memset);
-EXPORT_SYMBOL(memcmp);
-EXPORT_SYMBOL(memscan);
-EXPORT_SYMBOL(memmove);
-
-/*
- * libgcc functions - functions that are used internally by the
- * compiler...  (prototypes are not correct though, but that
- * doesn't really matter since they're not versioned).
- */
-extern void __gcc_bcmp(void);
-extern void __ashldi3(void);
-extern void __ashrdi3(void);
-extern void __cmpdi2(void);
-extern void __divdi3(void);
-extern void __divsi3(void);
-extern void __lshrdi3(void);
-extern void __moddi3(void);
-extern void __modsi3(void);
-extern void __muldi3(void);
-extern void __mulsi3(void);
-extern void __negdi2(void);
-extern void __ucmpdi2(void);
-extern void __udivdi3(void);
-extern void __udivmoddi4(void);
-extern void __udivsi3(void);
-extern void __umoddi3(void);
-extern void __umodsi3(void);
-
-        /* gcc lib functions */
-EXPORT_SYMBOL(__gcc_bcmp);
-EXPORT_SYMBOL(__ashldi3);
-EXPORT_SYMBOL(__ashrdi3);
-EXPORT_SYMBOL(__cmpdi2);
-EXPORT_SYMBOL(__divdi3);
-EXPORT_SYMBOL(__divsi3);
-EXPORT_SYMBOL(__lshrdi3);
-EXPORT_SYMBOL(__moddi3);
-EXPORT_SYMBOL(__modsi3);
-EXPORT_SYMBOL(__muldi3);
-EXPORT_SYMBOL(__mulsi3);
-EXPORT_SYMBOL(__negdi2);
-EXPORT_SYMBOL(__ucmpdi2);
-EXPORT_SYMBOL(__udivdi3);
-EXPORT_SYMBOL(__udivmoddi4);
-EXPORT_SYMBOL(__udivsi3);
-EXPORT_SYMBOL(__umoddi3);
-EXPORT_SYMBOL(__umodsi3);
-
-EXPORT_SYMBOL(h8300_reserved_gpio);
-EXPORT_SYMBOL(h8300_free_gpio);
-EXPORT_SYMBOL(h8300_set_gpio_dir);
diff --git a/arch/h8300/kernel/irq.c b/arch/h8300/kernel/irq.c
deleted file mode 100644
index 2fa8ac7b79b5..000000000000
--- a/arch/h8300/kernel/irq.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/*
- * linux/arch/h8300/kernel/irq.c
- *
- * Copyright 2007 Yoshinori Sato <ysato@users.sourceforge.jp>
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/kernel_stat.h>
-#include <linux/seq_file.h>
-#include <linux/init.h>
-#include <linux/random.h>
-#include <linux/bootmem.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-
-#include <asm/traps.h>
-#include <asm/io.h>
-#include <asm/setup.h>
-#include <asm/errno.h>
-
-/*#define DEBUG*/
-
-extern unsigned long *interrupt_redirect_table;
-extern const int h8300_saved_vectors[];
-extern const h8300_vector h8300_trap_table[];
-int h8300_enable_irq_pin(unsigned int irq);
-void h8300_disable_irq_pin(unsigned int irq);
-
-#define CPU_VECTOR ((unsigned long *)0x000000)
-#define ADDR_MASK (0xffffff)
-
-static inline int is_ext_irq(unsigned int irq)
-{
-	return (irq >= EXT_IRQ0 && irq <= (EXT_IRQ0 + EXT_IRQS));
-}
-
-static void h8300_enable_irq(struct irq_data *data)
-{
-	if (is_ext_irq(data->irq))
-		IER_REGS |= 1 << (data->irq - EXT_IRQ0);
-}
-
-static void h8300_disable_irq(struct irq_data *data)
-{
-	if (is_ext_irq(data->irq))
-		IER_REGS &= ~(1 << (data->irq - EXT_IRQ0));
-}
-
-static unsigned int h8300_startup_irq(struct irq_data *data)
-{
-	if (is_ext_irq(data->irq))
-		return h8300_enable_irq_pin(data->irq);
-	else
-		return 0;
-}
-
-static void h8300_shutdown_irq(struct irq_data *data)
-{
-	if (is_ext_irq(data->irq))
-		h8300_disable_irq_pin(data->irq);
-}
-
-/*
- * h8300 interrupt controller implementation
- */
-struct irq_chip h8300irq_chip = {
-	.name		= "H8300-INTC",
-	.irq_startup	= h8300_startup_irq,
-	.irq_shutdown	= h8300_shutdown_irq,
-	.irq_enable	= h8300_enable_irq,
-	.irq_disable	= h8300_disable_irq,
-};
-
-#if defined(CONFIG_RAMKERNEL)
-static unsigned long __init *get_vector_address(void)
-{
-	unsigned long *rom_vector = CPU_VECTOR;
-	unsigned long base,tmp;
-	int vec_no;
-
-	base = rom_vector[EXT_IRQ0] & ADDR_MASK;
-
-	/* check romvector format */
-	for (vec_no = EXT_IRQ1; vec_no <= EXT_IRQ0+EXT_IRQS; vec_no++) {
-		if ((base+(vec_no - EXT_IRQ0)*4) != (rom_vector[vec_no] & ADDR_MASK))
-			return NULL;
-	}
-
-	/* ramvector base address */
-	base -= EXT_IRQ0*4;
-
-	/* writerble check */
-	tmp = ~(*(volatile unsigned long *)base);
-	(*(volatile unsigned long *)base) = tmp;
-	if ((*(volatile unsigned long *)base) != tmp)
-		return NULL;
-	return (unsigned long *)base;
-}
-
-static void __init setup_vector(void)
-{
-	int i;
-	unsigned long *ramvec,*ramvec_p;
-	const h8300_vector *trap_entry;
-	const int *saved_vector;
-
-	ramvec = get_vector_address();
-	if (ramvec == NULL)
-		panic("interrupt vector serup failed.");
-	else
-		printk(KERN_INFO "virtual vector at 0x%08lx\n",(unsigned long)ramvec);
-
-	/* create redirect table */
-	ramvec_p = ramvec;
-	trap_entry = h8300_trap_table;
-	saved_vector = h8300_saved_vectors;
-	for ( i = 0; i < NR_IRQS; i++) {
-		if (i == *saved_vector) {
-			ramvec_p++;
-			saved_vector++;
-		} else {
-			if ( i < NR_TRAPS ) {
-				if (*trap_entry)
-					*ramvec_p = VECTOR(*trap_entry);
-				ramvec_p++;
-				trap_entry++;
-			} else
-				*ramvec_p++ = REDIRECT(interrupt_entry);
-		}
-	}
-	interrupt_redirect_table = ramvec;
-#ifdef DEBUG
-	ramvec_p = ramvec;
-	for (i = 0; i < NR_IRQS; i++) {
-		if ((i % 8) == 0)
-			printk(KERN_DEBUG "\n%p: ",ramvec_p);
-		printk(KERN_DEBUG "%p ",*ramvec_p);
-		ramvec_p++;
-	}
-	printk(KERN_DEBUG "\n");
-#endif
-}
-#else
-#define setup_vector() do { } while(0)
-#endif
-
-void __init init_IRQ(void)
-{
-	int c;
-
-	setup_vector();
-
-	for (c = 0; c < NR_IRQS; c++)
-		irq_set_chip_and_handler(c, &h8300irq_chip, handle_simple_irq);
-}
-
-asmlinkage void do_IRQ(int irq)
-{
-	irq_enter();
-	generic_handle_irq(irq);
-	irq_exit();
-}
diff --git a/arch/h8300/kernel/module.c b/arch/h8300/kernel/module.c
deleted file mode 100644
index 1d526e05db19..000000000000
--- a/arch/h8300/kernel/module.c
+++ /dev/null
@@ -1,75 +0,0 @@
-#include <linux/moduleloader.h>
-#include <linux/elf.h>
-#include <linux/vmalloc.h>
-#include <linux/fs.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-
-#if 0
-#define DEBUGP printk
-#else
-#define DEBUGP(fmt...)
-#endif
-
-int apply_relocate_add(Elf32_Shdr *sechdrs,
-		       const char *strtab,
-		       unsigned int symindex,
-		       unsigned int relsec,
-		       struct module *me)
-{
-	unsigned int i;
-	Elf32_Rela *rela = (void *)sechdrs[relsec].sh_addr;
-
-	DEBUGP("Applying relocate section %u to %u\n", relsec,
-	       sechdrs[relsec].sh_info);
-	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rela); i++) {
-		/* This is where to make the change */
-		uint32_t *loc = (uint32_t *)(sechdrs[sechdrs[relsec].sh_info].sh_addr
-					     + rela[i].r_offset);
-		/* This is the symbol it is referring to.  Note that all
-		   undefined symbols have been resolved.  */
-		Elf32_Sym *sym = (Elf32_Sym *)sechdrs[symindex].sh_addr
-			+ ELF32_R_SYM(rela[i].r_info);
-		uint32_t v = sym->st_value + rela[i].r_addend;
-
-		switch (ELF32_R_TYPE(rela[i].r_info)) {
-		case R_H8_DIR24R8:
-			loc = (uint32_t *)((uint32_t)loc - 1);
-			*loc = (*loc & 0xff000000) | ((*loc & 0xffffff) + v);
-			break;
-		case R_H8_DIR24A8:
-			if (ELF32_R_SYM(rela[i].r_info))
-				*loc += v;
-			break;
-		case R_H8_DIR32:
-		case R_H8_DIR32A16:
-			*loc += v;
-			break;
-		case R_H8_PCREL16:
-			v -= (unsigned long)loc + 2;
-			if ((Elf32_Sword)v > 0x7fff || 
-			    (Elf32_Sword)v < -(Elf32_Sword)0x8000)
-				goto overflow;
-			else 
-				*(unsigned short *)loc = v;
-			break;
-		case R_H8_PCREL8:
-			v -= (unsigned long)loc + 1;
-			if ((Elf32_Sword)v > 0x7f || 
-			    (Elf32_Sword)v < -(Elf32_Sword)0x80)
-				goto overflow;
-			else 
-				*(unsigned char *)loc = v;
-			break;
-		default:
-			printk(KERN_ERR "module %s: Unknown relocation: %u\n",
-			       me->name, ELF32_R_TYPE(rela[i].r_info));
-			return -ENOEXEC;
-		}
-	}
-	return 0;
- overflow:
-	printk(KERN_ERR "module %s: relocation offset overflow: %08x\n",
-	       me->name, rela[i].r_offset);
-	return -ENOEXEC;
-}
diff --git a/arch/h8300/kernel/process.c b/arch/h8300/kernel/process.c
deleted file mode 100644
index 1a744ab7e7e5..000000000000
--- a/arch/h8300/kernel/process.c
+++ /dev/null
@@ -1,154 +0,0 @@
-/*
- *  linux/arch/h8300/kernel/process.c
- *
- * Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- *  Based on:
- *
- *  linux/arch/m68knommu/kernel/process.c
- *
- *  Copyright (C) 1998  D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>,
- *                      Kenneth Albanowski <kjahds@kjahds.com>,
- *                      The Silver Hammer Group, Ltd.
- *
- *  linux/arch/m68k/kernel/process.c
- *
- *  Copyright (C) 1995  Hamish Macdonald
- *
- *  68060 fixes by Jesper Skov
- */
-
-/*
- * This file handles the architecture-dependent parts of process handling..
- */
-
-#include <linux/errno.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/stddef.h>
-#include <linux/unistd.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/interrupt.h>
-#include <linux/reboot.h>
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/rcupdate.h>
-
-#include <asm/uaccess.h>
-#include <asm/traps.h>
-#include <asm/setup.h>
-#include <asm/pgtable.h>
-
-void (*pm_power_off)(void) = NULL;
-EXPORT_SYMBOL(pm_power_off);
-
-asmlinkage void ret_from_fork(void);
-asmlinkage void ret_from_kernel_thread(void);
-
-/*
- * The idle loop on an H8/300..
- */
-#if !defined(CONFIG_H8300H_SIM) && !defined(CONFIG_H8S_SIM)
-void arch_cpu_idle(void)
-{
-	local_irq_enable();
-	/* XXX: race here! What if need_resched() gets set now? */
-	__asm__("sleep");
-}
-#endif
-
-void machine_restart(char * __unused)
-{
-	local_irq_disable();
-	__asm__("jmp @@0"); 
-}
-
-void machine_halt(void)
-{
-	local_irq_disable();
-	__asm__("sleep");
-	for (;;);
-}
-
-void machine_power_off(void)
-{
-	local_irq_disable();
-	__asm__("sleep");
-	for (;;);
-}
-
-void show_regs(struct pt_regs * regs)
-{
-	show_regs_print_info(KERN_DEFAULT);
-
-	printk("\nPC: %08lx  Status: %02x",
-	       regs->pc, regs->ccr);
-	printk("\nORIG_ER0: %08lx ER0: %08lx ER1: %08lx",
-	       regs->orig_er0, regs->er0, regs->er1);
-	printk("\nER2: %08lx ER3: %08lx ER4: %08lx ER5: %08lx",
-	       regs->er2, regs->er3, regs->er4, regs->er5);
-	printk("\nER6' %08lx ",regs->er6);
-	if (user_mode(regs))
-		printk("USP: %08lx\n", rdusp());
-	else
-		printk("\n");
-}
-
-void flush_thread(void)
-{
-}
-
-int copy_thread(unsigned long clone_flags,
-                unsigned long usp, unsigned long topstk,
-		 struct task_struct * p)
-{
-	struct pt_regs * childregs;
-
-	childregs = (struct pt_regs *) (THREAD_SIZE + task_stack_page(p)) - 1;
-
-	if (unlikely(p->flags & PF_KTHREAD)) {
-		memset(childregs, 0, sizeof(struct pt_regs));
-		childregs->retpc = (unsigned long) ret_from_kernel_thread;
-		childregs->er4 = topstk; /* arg */
-		childregs->er5 = usp; /* fn */
-		p->thread.ksp = (unsigned long)childregs;
-	}
-	*childregs = *current_pt_regs();
-	childregs->retpc = (unsigned long) ret_from_fork;
-	childregs->er0 = 0;
-	p->thread.usp = usp ?: rdusp();
-	p->thread.ksp = (unsigned long)childregs;
-
-	return 0;
-}
-
-unsigned long thread_saved_pc(struct task_struct *tsk)
-{
-	return ((struct pt_regs *)tsk->thread.esp0)->pc;
-}
-
-unsigned long get_wchan(struct task_struct *p)
-{
-	unsigned long fp, pc;
-	unsigned long stack_page;
-	int count = 0;
-	if (!p || p == current || p->state == TASK_RUNNING)
-		return 0;
-
-	stack_page = (unsigned long)p;
-	fp = ((struct pt_regs *)p->thread.ksp)->er6;
-	do {
-		if (fp < stack_page+sizeof(struct thread_info) ||
-		    fp >= 8184+stack_page)
-			return 0;
-		pc = ((unsigned long *)fp)[1];
-		if (!in_sched_functions(pc))
-			return pc;
-		fp = *(unsigned long *) fp;
-	} while (count++ < 16);
-	return 0;
-}
diff --git a/arch/h8300/kernel/ptrace.c b/arch/h8300/kernel/ptrace.c
deleted file mode 100644
index 748cf6585aa4..000000000000
--- a/arch/h8300/kernel/ptrace.c
+++ /dev/null
@@ -1,168 +0,0 @@
-/*
- *  linux/arch/h8300/kernel/ptrace.c
- *
- *  Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- *  Based on:
- *  linux/arch/m68k/kernel/ptrace.c
- *
- *  Copyright (C) 1994 by Hamish Macdonald
- *  Taken from linux/kernel/ptrace.c and modified for M680x0.
- *  linux/kernel/ptrace.c is by Ross Biro 1/23/92, edited by Linus Torvalds
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License.  See the file COPYING in the main directory of
- * this archive for more details.
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/errno.h>
-#include <linux/ptrace.h>
-#include <linux/user.h>
-#include <linux/signal.h>
-
-#include <asm/uaccess.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/processor.h>
-#include <asm/signal.h>
-
-/* cpu depend functions */
-extern long h8300_get_reg(struct task_struct *task, int regno);
-extern int  h8300_put_reg(struct task_struct *task, int regno, unsigned long data);
-
-
-void user_disable_single_step(struct task_struct *child)
-{
-}
-
-/*
- * does not yet catch signals sent when the child dies.
- * in exit.c or in signal.c.
- */
-
-void ptrace_disable(struct task_struct *child)
-{
-	user_disable_single_step(child);
-}
-
-long arch_ptrace(struct task_struct *child, long request,
-		 unsigned long addr, unsigned long data)
-{
-	int ret;
-	int regno = addr >> 2;
-	unsigned long __user *datap = (unsigned long __user *) data;
-
-	switch (request) {
-	/* read the word at location addr in the USER area. */
-		case PTRACE_PEEKUSR: {
-			unsigned long tmp = 0;
-			
-			if ((addr & 3) || addr >= sizeof(struct user)) {
-				ret = -EIO;
-				break ;
-			}
-			
-		        ret = 0;  /* Default return condition */
-
-			if (regno < H8300_REGS_NO)
-				tmp = h8300_get_reg(child, regno);
-			else {
-				switch (regno) {
-				case 49:
-					tmp = child->mm->start_code;
-					break ;
-				case 50:
-					tmp = child->mm->start_data;
-					break ;
-				case 51:
-					tmp = child->mm->end_code;
-					break ;
-				case 52:
-					tmp = child->mm->end_data;
-					break ;
-				default:
-					ret = -EIO;
-				}
-			}
-			if (!ret)
-				ret = put_user(tmp, datap);
-			break ;
-		}
-
-      /* when I and D space are separate, this will have to be fixed. */
-		case PTRACE_POKEUSR: /* write the word at location addr in the USER area */
-			if ((addr & 3) || addr >= sizeof(struct user)) {
-				ret = -EIO;
-				break ;
-			}
-			    
-			if (regno == PT_ORIG_ER0) {
-				ret = -EIO;
-				break ;
-			}
-			if (regno < H8300_REGS_NO) {
-				ret = h8300_put_reg(child, regno, data);
-				break ;
-			}
-			ret = -EIO;
-			break ;
-
-		case PTRACE_GETREGS: { /* Get all gp regs from the child. */
-		  	int i;
-			unsigned long tmp;
-			for (i = 0; i < H8300_REGS_NO; i++) {
-			    tmp = h8300_get_reg(child, i);
-			    if (put_user(tmp, datap)) {
-				ret = -EFAULT;
-				break;
-			    }
-			    datap++;
-			}
-			ret = 0;
-			break;
-		}
-
-		case PTRACE_SETREGS: { /* Set all gp regs in the child. */
-			int i;
-			unsigned long tmp;
-			for (i = 0; i < H8300_REGS_NO; i++) {
-			    if (get_user(tmp, datap)) {
-				ret = -EFAULT;
-				break;
-			    }
-			    h8300_put_reg(child, i, tmp);
-			    datap++;
-			}
-			ret = 0;
-			break;
-		}
-
-		default:
-			ret = ptrace_request(child, request, addr, data);
-			break;
-	}
-	return ret;
-}
-
-asmlinkage void do_syscall_trace(void)
-{
-	if (!test_thread_flag(TIF_SYSCALL_TRACE))
-		return;
-	if (!(current->ptrace & PT_PTRACED))
-		return;
-	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD)
-				 ? 0x80 : 0));
-	/*
-	 * this isn't the same as continuing with a signal, but it will do
-	 * for normal use.  strace only continues with a signal if the
-	 * stopping signal is not SIGTRAP.  -brl
-	 */
-	if (current->exit_code) {
-		send_sig(current->exit_code, current, 1);
-		current->exit_code = 0;
-	}
-}
diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c
deleted file mode 100644
index d0b1607f2711..000000000000
--- a/arch/h8300/kernel/setup.c
+++ /dev/null
@@ -1,242 +0,0 @@
-/*
- *  linux/arch/h8300/kernel/setup.c
- *
- *  Copyleft  ()) 2000       James D. Schettine {james@telos-systems.com}
- *  Copyright (C) 1999,2000  Greg Ungerer (gerg@snapgear.com)
- *  Copyright (C) 1998,1999  D. Jeff Dionne <jeff@lineo.ca>
- *  Copyright (C) 1998       Kenneth Albanowski <kjahds@kjahds.com>
- *  Copyright (C) 1995       Hamish Macdonald
- *  Copyright (C) 2000       Lineo Inc. (www.lineo.com) 
- *  Copyright (C) 2001 	     Lineo, Inc. <www.lineo.com>
- *
- *  H8/300 porting Yoshinori Sato <ysato@users.sourceforge.jp>
- */
-
-/*
- * This file handles the architecture-dependent parts of system setup
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/mm.h>
-#include <linux/fs.h>
-#include <linux/fb.h>
-#include <linux/console.h>
-#include <linux/genhd.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/major.h>
-#include <linux/bootmem.h>
-#include <linux/seq_file.h>
-#include <linux/init.h>
-
-#include <asm/setup.h>
-#include <asm/irq.h>
-#include <asm/pgtable.h>
-#include <asm/sections.h>
-
-#if defined(__H8300H__)
-#define CPU "H8/300H"
-#include <asm/regs306x.h>
-#endif
-
-#if defined(__H8300S__)
-#define CPU "H8S"
-#include <asm/regs267x.h>
-#endif
-
-#define STUBSIZE 0xc000
-
-unsigned long rom_length;
-unsigned long memory_start;
-unsigned long memory_end;
-
-char __initdata command_line[COMMAND_LINE_SIZE];
-
-extern int _ramstart, _ramend;
-extern char _target_name[];
-extern void h8300_gpio_init(void);
-
-#if (defined(CONFIG_H8300H_SIM) || defined(CONFIG_H8S_SIM)) \
-    && defined(CONFIG_GDB_MAGICPRINT)
-/* printk with gdb service */
-static void gdb_console_output(struct console *c, const char *msg, unsigned len)
-{
-	for (; len > 0; len--) {
-		asm("mov.w %0,r2\n\t"
-                    "jsr @0xc4"::"r"(*msg++):"er2");
-	}
-}
-
-/*
- *	Setup initial baud/bits/parity. We do two things here:
- *	- construct a cflag setting for the first rs_open()
- *	- initialize the serial port
- *	Return non-zero if we didn't find a serial port.
- */
-static int __init gdb_console_setup(struct console *co, char *options)
-{
-	return 0;
-}
-
-static const struct console gdb_console = {
-	.name		= "gdb_con",
-	.write		= gdb_console_output,
-	.device		= NULL,
-	.setup		= gdb_console_setup,
-	.flags		= CON_PRINTBUFFER,
-	.index		= -1,
-};
-#endif
-
-void __init setup_arch(char **cmdline_p)
-{
-	int bootmap_size;
-
-	memory_start = (unsigned long) &_ramstart;
-
-	/* allow for ROMFS on the end of the kernel */
-	if (memcmp((void *)memory_start, "-rom1fs-", 8) == 0) {
-#if defined(CONFIG_BLK_DEV_INITRD)
-		initrd_start = memory_start;
-		initrd_end = memory_start += be32_to_cpu(((unsigned long *) (memory_start))[2]);
-#else
-		memory_start += be32_to_cpu(((unsigned long *) memory_start)[2]);
-#endif
-	}
-	memory_start = PAGE_ALIGN(memory_start);
-#if !defined(CONFIG_BLKDEV_RESERVE)
-	memory_end = (unsigned long) &_ramend; /* by now the stack is part of the init task */
-#if defined(CONFIG_GDB_DEBUG)
-	memory_end -= STUBSIZE;
-#endif
-#else
-	if ((memory_end < CONFIG_BLKDEV_RESERVE_ADDRESS) && 
-	    (memory_end > CONFIG_BLKDEV_RESERVE_ADDRESS))
-	    /* overlap userarea */
-	    memory_end = CONFIG_BLKDEV_RESERVE_ADDRESS; 
-#endif
-
-	init_mm.start_code = (unsigned long) _stext;
-	init_mm.end_code = (unsigned long) _etext;
-	init_mm.end_data = (unsigned long) _edata;
-	init_mm.brk = (unsigned long) 0; 
-
-#if (defined(CONFIG_H8300H_SIM) || defined(CONFIG_H8S_SIM)) && defined(CONFIG_GDB_MAGICPRINT)
-	register_console((struct console *)&gdb_console);
-#endif
-
-	printk(KERN_INFO "\r\n\nuClinux " CPU "\n");
-	printk(KERN_INFO "Target Hardware: %s\n",_target_name);
-	printk(KERN_INFO "Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n");
-	printk(KERN_INFO "H8/300 series support by Yoshinori Sato <ysato@users.sourceforge.jp>\n");
-
-#ifdef DEBUG
-	printk(KERN_DEBUG "KERNEL -> TEXT=0x%p-0x%p DATA=0x%p-0x%p "
-		"BSS=0x%p-0x%p\n", _stext, _etext, _sdata, _edata, __bss_start,
-		__bss_stop);
-	printk(KERN_DEBUG "KERNEL -> ROMFS=0x%p-0x%06lx MEM=0x%06lx-0x%06lx "
-		"STACK=0x%06lx-0x%p\n", __bss_stop, memory_start, memory_start,
-		memory_end, memory_end, &_ramend);
-#endif
-
-#ifdef CONFIG_DEFAULT_CMDLINE
-	/* set from default command line */
-	if (*command_line == '\0')
-		strcpy(command_line,CONFIG_KERNEL_COMMAND);
-#endif
-	/* Keep a copy of command line */
-	*cmdline_p = &command_line[0];
-	memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
-	boot_command_line[COMMAND_LINE_SIZE-1] = 0;
-
-#ifdef DEBUG
-	if (strlen(*cmdline_p)) 
-		printk(KERN_DEBUG "Command line: '%s'\n", *cmdline_p);
-#endif
-
-	/*
-	 * give all the memory to the bootmap allocator,  tell it to put the
-	 * boot mem_map at the start of memory
-	 */
-	bootmap_size = init_bootmem_node(
-			NODE_DATA(0),
-			memory_start >> PAGE_SHIFT, /* map goes here */
-			PAGE_OFFSET >> PAGE_SHIFT,	/* 0 on coldfire */
-			memory_end >> PAGE_SHIFT);
-	/*
-	 * free the usable memory,  we have to make sure we do not free
-	 * the bootmem bitmap so we then reserve it after freeing it :-)
-	 */
-	free_bootmem(memory_start, memory_end - memory_start);
-	reserve_bootmem(memory_start, bootmap_size, BOOTMEM_DEFAULT);
-	/*
-	 * get kmalloc into gear
-	 */
-	paging_init();
-	h8300_gpio_init();
-#if defined(CONFIG_H8300_AKI3068NET) && defined(CONFIG_IDE)
-	{
-#define AREABIT(addr) (1 << (((addr) >> 21) & 7))
-		/* setup BSC */
-		volatile unsigned char *abwcr = (volatile unsigned char *)ABWCR;
-		volatile unsigned char *cscr = (volatile unsigned char *)CSCR;
-		*abwcr &= ~(AREABIT(CONFIG_H8300_IDE_BASE) | AREABIT(CONFIG_H8300_IDE_ALT));
-		*cscr  |= (AREABIT(CONFIG_H8300_IDE_BASE) | AREABIT(CONFIG_H8300_IDE_ALT)) | 0x0f;
-	}
-#endif
-#ifdef DEBUG
-	printk(KERN_DEBUG "Done setup_arch\n");
-#endif
-}
-
-/*
- *	Get CPU information for use by the procfs.
- */
-
-static int show_cpuinfo(struct seq_file *m, void *v)
-{
-    char *cpu;
-    int mode;
-    u_long clockfreq;
-
-    cpu = CPU;
-    mode = *(volatile unsigned char *)MDCR & 0x07;
-
-    clockfreq = CONFIG_CPU_CLOCK;
-
-    seq_printf(m,  "CPU:\t\t%s (mode:%d)\n"
-		   "Clock:\t\t%lu.%1luMHz\n"
-		   "BogoMips:\t%lu.%02lu\n"
-		   "Calibration:\t%lu loops\n",
-	           cpu,mode,
-		   clockfreq/1000,clockfreq%1000,
-		   (loops_per_jiffy*HZ)/500000,((loops_per_jiffy*HZ)/5000)%100,
-		   (loops_per_jiffy*HZ));
-
-    return 0;
-}
-
-static void *c_start(struct seq_file *m, loff_t *pos)
-{
-	return *pos < NR_CPUS ? ((void *) 0x12345678) : NULL;
-}
-
-static void *c_next(struct seq_file *m, void *v, loff_t *pos)
-{
-	++*pos;
-	return c_start(m, pos);
-}
-
-static void c_stop(struct seq_file *m, void *v)
-{
-}
-
-const struct seq_operations cpuinfo_op = {
-	.start	= c_start,
-	.next	= c_next,
-	.stop	= c_stop,
-	.show	= show_cpuinfo,
-};
diff --git a/arch/h8300/kernel/signal.c b/arch/h8300/kernel/signal.c
deleted file mode 100644
index a65ff3b76326..000000000000
--- a/arch/h8300/kernel/signal.c
+++ /dev/null
@@ -1,444 +0,0 @@
-/*
- *  linux/arch/h8300/kernel/signal.c
- *
- *  Copyright (C) 1991, 1992  Linus Torvalds
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive
- * for more details.
- */
-
-/*
- * uClinux H8/300 support by Yoshinori Sato <ysato@users.sourceforge.jp>
- *                and David McCullough <davidm@snapgear.com>
- *
- * Based on
- * Linux/m68k by Hamish Macdonald
- */
-
-/*
- * ++roman (07/09/96): implemented signal stacks (specially for tosemu on
- * Atari :-) Current limitation: Only one sigstack can be active at one time.
- * If a second signal with SA_ONSTACK set arrives while working on a sigstack,
- * SA_ONSTACK is ignored. This behaviour avoids lots of trouble with nested
- * signal handlers!
- */
-
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/kernel.h>
-#include <linux/signal.h>
-#include <linux/syscalls.h>
-#include <linux/errno.h>
-#include <linux/wait.h>
-#include <linux/ptrace.h>
-#include <linux/unistd.h>
-#include <linux/stddef.h>
-#include <linux/highuid.h>
-#include <linux/personality.h>
-#include <linux/tty.h>
-#include <linux/binfmts.h>
-#include <linux/tracehook.h>
-
-#include <asm/setup.h>
-#include <asm/uaccess.h>
-#include <asm/pgtable.h>
-#include <asm/traps.h>
-#include <asm/ucontext.h>
-
-/*
- * Do a signal return; undo the signal stack.
- *
- * Keep the return code on the stack quadword aligned!
- * That makes the cache flush below easier.
- */
-
-struct sigframe
-{
-	long dummy_er0;
-	long dummy_vector;
-#if defined(CONFIG_CPU_H8S)
-	short dummy_exr;
-#endif
-	long dummy_pc;
-	char *pretcode;
-	unsigned char retcode[8];
-	unsigned long extramask[_NSIG_WORDS-1];
-	struct sigcontext sc;
-	int sig;
-} __attribute__((aligned(2),packed));
-
-struct rt_sigframe
-{
-	long dummy_er0;
-	long dummy_vector;
-#if defined(CONFIG_CPU_H8S)
-	short dummy_exr;
-#endif
-	long dummy_pc;
-	char *pretcode;
-	struct siginfo *pinfo;
-	void *puc;
-	unsigned char retcode[8];
-	struct siginfo info;
-	struct ucontext uc;
-	int sig;
-} __attribute__((aligned(2),packed));
-
-static inline int
-restore_sigcontext(struct sigcontext *usc, int *pd0)
-{
-	struct pt_regs *regs = current_pt_regs();
-	int err = 0;
-	unsigned int ccr;
-	unsigned int usp;
-	unsigned int er0;
-
-	/* Always make any pending restarted system calls return -EINTR */
-	current_thread_info()->restart_block.fn = do_no_restart_syscall;
-
-#define COPY(r) err |= __get_user(regs->r, &usc->sc_##r)    /* restore passed registers */
-	COPY(er1);
-	COPY(er2);
-	COPY(er3);
-	COPY(er5);
-	COPY(pc);
-	ccr = regs->ccr & 0x10;
-	COPY(ccr);
-#undef COPY
-	regs->ccr &= 0xef;
-	regs->ccr |= ccr;
-	regs->orig_er0 = -1;		/* disable syscall checks */
-	err |= __get_user(usp, &usc->sc_usp);
-	wrusp(usp);
-
-	err |= __get_user(er0, &usc->sc_er0);
-	*pd0 = er0;
-	return err;
-}
-
-asmlinkage int sys_sigreturn(void)
-{
-	unsigned long usp = rdusp();
-	struct sigframe *frame = (struct sigframe *)(usp - 4);
-	sigset_t set;
-	int er0;
-
-	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
-		goto badframe;
-	if (__get_user(set.sig[0], &frame->sc.sc_mask) ||
-	    (_NSIG_WORDS > 1 &&
-	     __copy_from_user(&set.sig[1], &frame->extramask,
-			      sizeof(frame->extramask))))
-		goto badframe;
-
-	set_current_blocked(&set);
-	
-	if (restore_sigcontext(&frame->sc, &er0))
-		goto badframe;
-	return er0;
-
-badframe:
-	force_sig(SIGSEGV, current);
-	return 0;
-}
-
-asmlinkage int sys_rt_sigreturn(void)
-{
-	unsigned long usp = rdusp();
-	struct rt_sigframe *frame = (struct rt_sigframe *)(usp - 4);
-	sigset_t set;
-	int er0;
-
-	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
-		goto badframe;
-	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
-		goto badframe;
-
-	set_current_blocked(&set);
-	
-	if (restore_sigcontext(&frame->uc.uc_mcontext, &er0))
-		goto badframe;
-
-	if (restore_altstack(&frame->uc.uc_stack))
-		goto badframe;
-
-	return er0;
-
-badframe:
-	force_sig(SIGSEGV, current);
-	return 0;
-}
-
-static int setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
-			     unsigned long mask)
-{
-	int err = 0;
-
-	err |= __put_user(regs->er0, &sc->sc_er0);
-	err |= __put_user(regs->er1, &sc->sc_er1);
-	err |= __put_user(regs->er2, &sc->sc_er2);
-	err |= __put_user(regs->er3, &sc->sc_er3);
-	err |= __put_user(regs->er4, &sc->sc_er4);
-	err |= __put_user(regs->er5, &sc->sc_er5);
-	err |= __put_user(regs->er6, &sc->sc_er6);
-	err |= __put_user(rdusp(),   &sc->sc_usp);
-	err |= __put_user(regs->pc,  &sc->sc_pc);
-	err |= __put_user(regs->ccr, &sc->sc_ccr);
-	err |= __put_user(mask,      &sc->sc_mask);
-
-	return err;
-}
-
-static inline void *
-get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size)
-{
-	unsigned long usp;
-
-	/* Default to using normal stack.  */
-	usp = rdusp();
-
-	/* This is the X/Open sanctioned signal stack switching.  */
-	if (ka->sa.sa_flags & SA_ONSTACK) {
-		if (!sas_ss_flags(usp))
-			usp = current->sas_ss_sp + current->sas_ss_size;
-	}
-	return (void *)((usp - frame_size) & -8UL);
-}
-
-static int setup_frame (int sig, struct k_sigaction *ka,
-			 sigset_t *set, struct pt_regs *regs)
-{
-	struct sigframe *frame;
-	int err = 0;
-	int usig;
-	unsigned char *ret;
-
-	frame = get_sigframe(ka, regs, sizeof(*frame));
-
-	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
-		goto give_sigsegv;
-
-	usig = current_thread_info()->exec_domain
-		&& current_thread_info()->exec_domain->signal_invmap
-		&& sig < 32
-		? current_thread_info()->exec_domain->signal_invmap[sig]
-		: sig;
-
-	err |= __put_user(usig, &frame->sig);
-	if (err)
-		goto give_sigsegv;
-
-	err |= setup_sigcontext(&frame->sc, regs, set->sig[0]);
-	if (err)
-		goto give_sigsegv;
-
-	if (_NSIG_WORDS > 1) {
-		err |= copy_to_user(frame->extramask, &set->sig[1],
-				    sizeof(frame->extramask));
-		if (err)
-			goto give_sigsegv;
-	}
-
-	ret = frame->retcode;
-	if (ka->sa.sa_flags & SA_RESTORER)
-		ret = (unsigned char *)(ka->sa.sa_restorer);
-	else {
-		/* sub.l er0,er0; mov.b #__NR_sigreturn,r0l; trapa #0 */
-		err |= __put_user(0x1a80f800 + (__NR_sigreturn & 0xff),
-				  (unsigned long *)(frame->retcode + 0));
-		err |= __put_user(0x5700, (unsigned short *)(frame->retcode + 4));
-	}
-
-	/* Set up to return from userspace.  */
-	err |= __put_user(ret, &frame->pretcode);
-
-	if (err)
-		goto give_sigsegv;
-
-	/* Set up registers for signal handler */
-	wrusp ((unsigned long) frame);
-	regs->pc = (unsigned long) ka->sa.sa_handler;
-	regs->er0 = (current_thread_info()->exec_domain
-			   && current_thread_info()->exec_domain->signal_invmap
-			   && sig < 32
-			   ? current_thread_info()->exec_domain->signal_invmap[sig]
-		          : sig);
-	regs->er1 = (unsigned long)&(frame->sc);
-	regs->er5 = current->mm->start_data;	/* GOT base */
-
-	return 0;
-
-give_sigsegv:
-	force_sigsegv(sig, current);
-	return -EFAULT;
-}
-
-static int setup_rt_frame (int sig, struct k_sigaction *ka, siginfo_t *info,
-			    sigset_t *set, struct pt_regs *regs)
-{
-	struct rt_sigframe *frame;
-	int err = 0;
-	int usig;
-	unsigned char *ret;
-
-	frame = get_sigframe(ka, regs, sizeof(*frame));
-
-	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
-		goto give_sigsegv;
-
-	usig = current_thread_info()->exec_domain
-		&& current_thread_info()->exec_domain->signal_invmap
-		&& sig < 32
-		? current_thread_info()->exec_domain->signal_invmap[sig]
-		: sig;
-
-	err |= __put_user(usig, &frame->sig);
-	if (err)
-		goto give_sigsegv;
-
-	err |= __put_user(&frame->info, &frame->pinfo);
-	err |= __put_user(&frame->uc, &frame->puc);
-	err |= copy_siginfo_to_user(&frame->info, info);
-	if (err)
-		goto give_sigsegv;
-
-	/* Create the ucontext.  */
-	err |= __put_user(0, &frame->uc.uc_flags);
-	err |= __put_user(0, &frame->uc.uc_link);
-	err |= __save_altstack(&frame->uc.uc_stack, rdusp());
-	err |= setup_sigcontext(&frame->uc.uc_mcontext, regs, set->sig[0]);
-	err |= copy_to_user (&frame->uc.uc_sigmask, set, sizeof(*set));
-	if (err)
-		goto give_sigsegv;
-
-	/* Set up to return from userspace.  */
-	ret = frame->retcode;
-	if (ka->sa.sa_flags & SA_RESTORER)
-		ret = (unsigned char *)(ka->sa.sa_restorer);
-	else {
-		/* sub.l er0,er0; mov.b #__NR_sigreturn,r0l; trapa #0 */
-		err |= __put_user(0x1a80f800 + (__NR_sigreturn & 0xff),
-				  (unsigned long *)(frame->retcode + 0));
-		err |= __put_user(0x5700, (unsigned short *)(frame->retcode + 4));
-	}
-	err |= __put_user(ret, &frame->pretcode);
-
-	if (err)
-		goto give_sigsegv;
-
-	/* Set up registers for signal handler */
-	wrusp ((unsigned long) frame);
-	regs->pc  = (unsigned long) ka->sa.sa_handler;
-	regs->er0 = (current_thread_info()->exec_domain
-		     && current_thread_info()->exec_domain->signal_invmap
-		     && sig < 32
-		     ? current_thread_info()->exec_domain->signal_invmap[sig]
-		     : sig);
-	regs->er1 = (unsigned long)&(frame->info);
-	regs->er2 = (unsigned long)&frame->uc;
-	regs->er5 = current->mm->start_data;	/* GOT base */
-
-	return 0;
-
-give_sigsegv:
-	force_sigsegv(sig, current);
-	return -EFAULT;
-}
-
-/*
- * OK, we're invoking a handler
- */
-static void
-handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
-	      struct pt_regs * regs)
-{
-	sigset_t *oldset = sigmask_to_save();
-	int ret;
-	/* are we from a system call? */
-	if (regs->orig_er0 >= 0) {
-		switch (regs->er0) {
-		        case -ERESTART_RESTARTBLOCK:
-			case -ERESTARTNOHAND:
-				regs->er0 = -EINTR;
-				break;
-
-			case -ERESTARTSYS:
-				if (!(ka->sa.sa_flags & SA_RESTART)) {
-					regs->er0 = -EINTR;
-					break;
-				}
-			/* fallthrough */
-			case -ERESTARTNOINTR:
-				regs->er0 = regs->orig_er0;
-				regs->pc -= 2;
-		}
-	}
-
-	/* set up the stack frame */
-	if (ka->sa.sa_flags & SA_SIGINFO)
-		ret = setup_rt_frame(sig, ka, info, oldset, regs);
-	else
-		ret = setup_frame(sig, ka, oldset, regs);
-
-	if (!ret)
-		signal_delivered(sig, info, ka, regs, 0);
-}
-
-/*
- * Note that 'init' is a special process: it doesn't get signals it doesn't
- * want to handle. Thus you cannot kill init even with a SIGKILL even by
- * mistake.
- */
-static void do_signal(struct pt_regs *regs)
-{
-	siginfo_t info;
-	int signr;
-	struct k_sigaction ka;
-
-	/*
-	 * We want the common case to go fast, which
-	 * is why we may in certain cases get here from
-	 * kernel mode. Just return without doing anything
-	 * if so.
-	 */
-	if ((regs->ccr & 0x10))
-		return;
-
-	current->thread.esp0 = (unsigned long) regs;
-
-	signr = get_signal_to_deliver(&info, &ka, regs, NULL);
-	if (signr > 0) {
-		/* Whee!  Actually deliver the signal.  */
-		handle_signal(signr, &info, &ka, regs);
-		return;
-	}
-	/* Did we come from a system call? */
-	if (regs->orig_er0 >= 0) {
-		/* Restart the system call - no handlers present */
-		if (regs->er0 == -ERESTARTNOHAND ||
-		    regs->er0 == -ERESTARTSYS ||
-		    regs->er0 == -ERESTARTNOINTR) {
-			regs->er0 = regs->orig_er0;
-			regs->pc -= 2;
-		}
-		if (regs->er0 == -ERESTART_RESTARTBLOCK){
-			regs->er0 = __NR_restart_syscall;
-			regs->pc -= 2;
-		}
-	}
-
-	/* If there's no signal to deliver, we just restore the saved mask.  */
-	restore_saved_sigmask();
-}
-
-asmlinkage void do_notify_resume(struct pt_regs *regs, u32 thread_info_flags)
-{
-	if (thread_info_flags & _TIF_SIGPENDING)
-		do_signal(regs);
-
-	if (thread_info_flags & _TIF_NOTIFY_RESUME) {
-		clear_thread_flag(TIF_NOTIFY_RESUME);
-		tracehook_notify_resume(regs);
-	}
-}
diff --git a/arch/h8300/kernel/sys_h8300.c b/arch/h8300/kernel/sys_h8300.c
deleted file mode 100644
index bf350cb7f597..000000000000
--- a/arch/h8300/kernel/sys_h8300.c
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * linux/arch/h8300/kernel/sys_h8300.c
- *
- * This file contains various random system calls that
- * have a non-standard calling sequence on the H8/300
- * platform.
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/smp.h>
-#include <linux/sem.h>
-#include <linux/msg.h>
-#include <linux/shm.h>
-#include <linux/stat.h>
-#include <linux/syscalls.h>
-#include <linux/mman.h>
-#include <linux/file.h>
-#include <linux/fs.h>
-#include <linux/ipc.h>
-
-#include <asm/setup.h>
-#include <asm/uaccess.h>
-#include <asm/cachectl.h>
-#include <asm/traps.h>
-#include <asm/unistd.h>
-
-/* sys_cacheflush -- no support.  */
-asmlinkage int
-sys_cacheflush (unsigned long addr, int scope, int cache, unsigned long len)
-{
-	return -EINVAL;
-}
-
-asmlinkage int sys_getpagesize(void)
-{
-	return PAGE_SIZE;
-}
-
-#if defined(CONFIG_SYSCALL_PRINT)
-asmlinkage void syscall_print(void *dummy,...)
-{
-	struct pt_regs *regs = (struct pt_regs *) ((unsigned char *)&dummy-4);
-	printk("call %06lx:%ld 1:%08lx,2:%08lx,3:%08lx,ret:%08lx\n",
-               ((regs->pc)&0xffffff)-2,regs->orig_er0,regs->er1,regs->er2,regs->er3,regs->er0);
-}
-#endif
diff --git a/arch/h8300/kernel/syscalls.S b/arch/h8300/kernel/syscalls.S
deleted file mode 100644
index c55e0ed270d5..000000000000
--- a/arch/h8300/kernel/syscalls.S
+++ /dev/null
@@ -1,338 +0,0 @@
-/* Systemcall Entry Table */
-#include <linux/sys.h>
-#include <asm/linkage.h>
-#include <asm/unistd.h>
-
-#define CALL(x)	.long _ ## x
-
-.globl _sys_call_table
-
-#if defined(CONFIG_CPU_H8300H)
-	.h8300h
-#endif
-#if defined(CONFIG_CPU_H8S)
-	.h8300s
-#endif
-	.section .text
-	.align	2
-_sys_call_table:
-	CALL(sys_ni_syscall)		/* 0  -  old "setup()" system call*/
-	CALL(sys_exit)
-	CALL(sys_fork)
-	CALL(sys_read)
-	CALL(sys_write)
-	CALL(sys_open)			/* 5 */
-	CALL(sys_close)
-	CALL(sys_waitpid)
-	CALL(sys_creat)
-	CALL(sys_link)
-	CALL(sys_unlink)		/* 10 */
-	CALL(sys_execve)
-	CALL(sys_chdir)
-	CALL(sys_time)
-	CALL(sys_mknod)
-	CALL(sys_chmod)			/* 15 */
-	CALL(sys_chown16)
-	CALL(sys_ni_syscall)		/* old break syscall holder */
-	CALL(sys_stat)
-	CALL(sys_lseek)
-	CALL(sys_getpid)		/* 20 */
-	CALL(sys_mount)
-	CALL(sys_oldumount)
-	CALL(sys_setuid16)
-	CALL(sys_getuid16)
-	CALL(sys_stime)			/* 25 */
-	CALL(sys_ptrace)
-	CALL(sys_alarm)
-	CALL(sys_fstat)
-	CALL(sys_pause)
-	CALL(sys_utime)			/* 30 */
-	CALL(sys_ni_syscall)		/* old stty syscall holder */
-	CALL(sys_ni_syscall)		/* old gtty syscall holder */
-	CALL(sys_access)
-	CALL(sys_nice)
-	CALL(sys_ni_syscall)		/* 35 old ftime syscall holder */
-	CALL(sys_sync)
-	CALL(sys_kill)
-	CALL(sys_rename)
-	CALL(sys_mkdir)
-	CALL(sys_rmdir)			/* 40 */
-	CALL(sys_dup)
-	CALL(sys_pipe)
-	CALL(sys_times)
-	CALL(sys_ni_syscall)		/* old prof syscall holder */
-	CALL(sys_brk)			/* 45 */
-	CALL(sys_setgid16)
-	CALL(sys_getgid16)
-	CALL(sys_signal)
-	CALL(sys_geteuid16)
-	CALL(sys_getegid16)		/* 50 */
-	CALL(sys_acct)
-	CALL(sys_umount)		/* recycled never used phys() */
-	CALL(sys_ni_syscall)		/* old lock syscall holder */
-	CALL(sys_ioctl)
-	CALL(sys_fcntl)			/* 55 */
-	CALL(sys_ni_syscall)		/* old mpx syscall holder */
-	CALL(sys_setpgid)
-	CALL(sys_ni_syscall)		/* old ulimit syscall holder */
-	CALL(sys_ni_syscall)
-	CALL(sys_umask)			/* 60 */
-	CALL(sys_chroot)
-	CALL(sys_ustat)
-	CALL(sys_dup2)
-	CALL(sys_getppid)
-	CALL(sys_getpgrp)		/* 65 */
-	CALL(sys_setsid)
-	CALL(sys_sigaction)
-	CALL(sys_sgetmask)
-	CALL(sys_ssetmask)
-	CALL(sys_setreuid16)		/* 70 */
-	CALL(sys_setregid16)
-	CALL(sys_sigsuspend)
-	CALL(sys_sigpending)
-	CALL(sys_sethostname)
-	CALL(sys_setrlimit)		/* 75 */
-	CALL(sys_old_getrlimit)
-	CALL(sys_getrusage)
-	CALL(sys_gettimeofday)
-	CALL(sys_settimeofday)
-	CALL(sys_getgroups16)		/* 80 */
-	CALL(sys_setgroups16)
-	CALL(sys_old_select)
-	CALL(sys_symlink)
-	CALL(sys_lstat)
-	CALL(sys_readlink)		/* 85 */
-	CALL(sys_uselib)
-	CALL(sys_swapon)
-	CALL(sys_reboot)
-	CALL(sys_old_readdir)
-	CALL(sys_old_mmap)		/* 90 */
-	CALL(sys_munmap)
-	CALL(sys_truncate)
-	CALL(sys_ftruncate)
-	CALL(sys_fchmod)
-	CALL(sys_fchown16)		/* 95 */
-	CALL(sys_getpriority)
-	CALL(sys_setpriority)
-	CALL(sys_ni_syscall)		/* old profil syscall holder */
-	CALL(sys_statfs)
-	CALL(sys_fstatfs)		/* 100 */
-	CALL(sys_ni_syscall)		/* ioperm for i386 */
-	CALL(sys_socketcall)
-	CALL(sys_syslog)
-	CALL(sys_setitimer)
-	CALL(sys_getitimer)		/* 105 */
-	CALL(sys_newstat)
-	CALL(sys_newlstat)
-	CALL(sys_newfstat)
-	CALL(sys_ni_syscall)
-	CALL(sys_ni_syscall)		/* iopl for i386 */ /* 110 */
-	CALL(sys_vhangup)
-	CALL(sys_ni_syscall)		/* obsolete idle() syscall */
-	CALL(sys_ni_syscall)		/* vm86old for i386 */
-	CALL(sys_wait4)
-	CALL(sys_swapoff)		/* 115 */
-	CALL(sys_sysinfo)
-	CALL(sys_ipc)
-	CALL(sys_fsync)
-	CALL(sys_sigreturn)
-	CALL(sys_clone)			/* 120 */
-	CALL(sys_setdomainname)
-	CALL(sys_newuname)
-	CALL(sys_cacheflush)		/* modify_ldt for i386 */
-	CALL(sys_adjtimex)
-	CALL(sys_ni_syscall)		/* 125 sys_mprotect */
-	CALL(sys_sigprocmask)
-	CALL(sys_ni_syscall)		/* sys_create_module */
-	CALL(sys_init_module)
-	CALL(sys_delete_module)
-	CALL(sys_ni_syscall)		/* 130 sys_get_kernel_syms */
-	CALL(sys_quotactl)
-	CALL(sys_getpgid)
-	CALL(sys_fchdir)
-	CALL(sys_bdflush)
-	CALL(sys_sysfs)			/* 135 */
-	CALL(sys_personality)
-	CALL(sys_ni_syscall)		/* for afs_syscall */
-	CALL(sys_setfsuid16)
-	CALL(sys_setfsgid16)
-	CALL(sys_llseek)		/* 140 */
-	CALL(sys_getdents)
-	CALL(sys_select)
-	CALL(sys_flock)
-	CALL(sys_ni_syscall)		/* sys_msync */
-	CALL(sys_readv)			/* 145 */
-	CALL(sys_writev)
-	CALL(sys_getsid)
-	CALL(sys_fdatasync)
-	CALL(sys_sysctl)
-	CALL(sys_ni_syscall)		/* 150 sys_mlock */
-	CALL(sys_ni_syscall)		/* sys_munlock */
-	CALL(sys_ni_syscall)		/* sys_mlockall */
-	CALL(sys_ni_syscall)		/* sys_munlockall */
-	CALL(sys_sched_setparam)
-	CALL(sys_sched_getparam)	/* 155 */
-	CALL(sys_sched_setscheduler)
-	CALL(sys_sched_getscheduler)
-	CALL(sys_sched_yield)
-	CALL(sys_sched_get_priority_max)
-	CALL(sys_sched_get_priority_min)  /* 160 */
-	CALL(sys_sched_rr_get_interval)
-	CALL(sys_nanosleep)
-	CALL(sys_ni_syscall)		/* sys_mremap */
-	CALL(sys_setresuid16)
-	CALL(sys_getresuid16)		/* 165 */
-	CALL(sys_ni_syscall)		/* for vm86 */
-	CALL(sys_ni_syscall)		/* sys_query_module */
-	CALL(sys_poll)
-	CALL(sys_ni_syscall)		/* old nfsservctl */
-	CALL(sys_setresgid16)		/* 170 */
-	CALL(sys_getresgid16)
-	CALL(sys_prctl)
-	CALL(sys_rt_sigreturn)
-	CALL(sys_rt_sigaction)
-	CALL(sys_rt_sigprocmask)	/* 175 */
-	CALL(sys_rt_sigpending)
-	CALL(sys_rt_sigtimedwait)
-	CALL(sys_rt_sigqueueinfo)
-	CALL(sys_rt_sigsuspend)
-	CALL(sys_pread64)		/* 180 */
-	CALL(sys_pwrite64)
-	CALL(sys_lchown16);
-	CALL(sys_getcwd)
-	CALL(sys_capget)
-	CALL(sys_capset)		/* 185 */
-	CALL(sys_sigaltstack)
-	CALL(sys_sendfile)
-	CALL(sys_ni_syscall)		/* streams1 */
-	CALL(sys_ni_syscall)		/* streams2 */
-	CALL(sys_vfork)			/* 190 */
-	CALL(sys_getrlimit)
-	CALL(sys_mmap_pgoff)
-	CALL(sys_truncate64)
-	CALL(sys_ftruncate64)
-	CALL(sys_stat64)		/* 195 */
-	CALL(sys_lstat64)
-	CALL(sys_fstat64)
-	CALL(sys_chown)
-	CALL(sys_getuid)
-	CALL(sys_getgid)		/* 200 */
-	CALL(sys_geteuid)
-	CALL(sys_getegid)
-	CALL(sys_setreuid)
-	CALL(sys_setregid)
-	CALL(sys_getgroups)		/* 205 */
-	CALL(sys_setgroups)
-	CALL(sys_fchown)
-	CALL(sys_setresuid)
-	CALL(sys_getresuid)
-	CALL(sys_setresgid)		/* 210 */
-	CALL(sys_getresgid)
-	CALL(sys_lchown)
-	CALL(sys_setuid)
-	CALL(sys_setgid)
-	CALL(sys_setfsuid)		/* 215 */
-	CALL(sys_setfsgid)
-	CALL(sys_pivot_root)
-	CALL(sys_ni_syscall)
-	CALL(sys_ni_syscall)
-	CALL(sys_getdents64)		/* 220 */
-	CALL(sys_fcntl64)
-	CALL(sys_ni_syscall)		/* reserved TUX */
-	CALL(sys_ni_syscall)		/* reserved Security */
-	CALL(sys_gettid)
-	CALL(sys_readahead)		/* 225 */
-	CALL(sys_setxattr)
-	CALL(sys_lsetxattr)
-	CALL(sys_fsetxattr)
-	CALL(sys_getxattr)
-	CALL(sys_lgetxattr)		/* 230 */
-	CALL(sys_fgetxattr)
-	CALL(sys_listxattr)
-	CALL(sys_llistxattr)
-	CALL(sys_flistxattr)
-	CALL(sys_removexattr)		/* 235 */
-	CALL(sys_lremovexattr)
-	CALL(sys_fremovexattr)
-	CALL(sys_tkill)
-	CALL(sys_sendfile64)
-	CALL(sys_futex)			/* 240 */
-	CALL(sys_sched_setaffinity)
-	CALL(sys_sched_getaffinity)
-	CALL(sys_ni_syscall)
-	CALL(sys_ni_syscall)
-	CALL(sys_io_setup)		/* 245 */
-	CALL(sys_io_destroy)
-	CALL(sys_io_getevents)
-	CALL(sys_io_submit)
-	CALL(sys_io_cancel)
-	CALL(sys_fadvise64)		/* 250 */
-	CALL(sys_ni_syscall)
-	CALL(sys_exit_group)
-	CALL(sys_lookup_dcookie)
-	CALL(sys_epoll_create)
-	CALL(sys_epoll_ctl)		/* 255 */
-	CALL(sys_epoll_wait)
-	CALL(sys_ni_syscall)		/* sys_remap_file_pages */
-	CALL(sys_set_tid_address)
-	CALL(sys_timer_create)
-	CALL(sys_timer_settime)		/* 260 */
-	CALL(sys_timer_gettime)
-	CALL(sys_timer_getoverrun)
-	CALL(sys_timer_delete)
-	CALL(sys_clock_settime)
-	CALL(sys_clock_gettime)		/* 265 */
-	CALL(sys_clock_getres)
-	CALL(sys_clock_nanosleep)
-	CALL(sys_statfs64)
-	CALL(sys_fstatfs64)
-	CALL(sys_tgkill)		/* 270 */
-	CALL(sys_utimes)
-	CALL(sys_fadvise64_64)
-	CALL(sys_ni_syscall)		/* sys_vserver */
-	CALL(sys_ni_syscall)
-	CALL(sys_get_mempolicy)		/* 275 */
-	CALL(sys_set_mempolicy)
-	CALL(sys_mq_open)
-	CALL(sys_mq_unlink)
-	CALL(sys_mq_timedsend)
-	CALL(sys_mq_timedreceive)	/* 280 */
-	CALL(sys_mq_notify)
-	CALL(sys_mq_getsetattr)
-	CALL(sys_waitid)
-	CALL(sys_ni_syscall)		/* sys_kexec_load */
-	CALL(sys_add_key) 		/* 285 */
-	CALL(sys_request_key)
-	CALL(sys_keyctl)
-	CALL(sys_ioprio_set)
-	CALL(sys_ioprio_get)		/* 290 */
-	CALL(sys_inotify_init)
-	CALL(sys_inotify_add_watch)
-	CALL(sys_inotify_rm_watch)
-	CALL(sys_migrate_pages)
-	CALL(sys_openat)		/* 295 */
-	CALL(sys_mkdirat)
-	CALL(sys_mknodat)
-	CALL(sys_fchownat)
-	CALL(sys_futimesat)
-	CALL(sys_fstatat64)		/* 300 */
-	CALL(sys_unlinkat)
-	CALL(sys_renameat)
-	CALL(sys_linkat)
-	CALL(sys_symlinkat)
-	CALL(sys_readlinkat)		/* 305 */
-	CALL(sys_fchmodat)
-	CALL(sys_faccessat)
-	CALL(sys_ni_syscall)		/* sys_pselect6 */
-	CALL(sys_ni_syscall)		/* sys_ppoll */
-	CALL(sys_unshare)		/* 310 */
-	CALL(sys_set_robust_list)
-	CALL(sys_get_robust_list)
-	CALL(sys_splice)
-	CALL(sys_sync_file_range)
-	CALL(sys_tee)			/* 315 */
-	CALL(sys_vmsplice)
-	CALL(sys_ni_syscall)		/* sys_move_pages */
-	CALL(sys_getcpu)
-	CALL(sys_ni_syscall)		/* sys_epoll_pwait */
-	CALL(sys_setns)			/* 320 */
diff --git a/arch/h8300/kernel/time.c b/arch/h8300/kernel/time.c
deleted file mode 100644
index e0f74191d553..000000000000
--- a/arch/h8300/kernel/time.c
+++ /dev/null
@@ -1,66 +0,0 @@
-/*
- *  linux/arch/h8300/kernel/time.c
- *
- *  Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- *  Copied/hacked from:
- *
- *  linux/arch/m68k/kernel/time.c
- *
- *  Copyright (C) 1991, 1992, 1995  Linus Torvalds
- *
- * This file contains the m68k-specific time handling details.
- * Most of the stuff is located in the machine specific files.
- *
- * 1997-09-10	Updated NTP code according to technical memorandum Jan '96
- *		"A Kernel Model for Precision Timekeeping" by Dave Mills
- */
-
-#include <linux/errno.h>
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/timex.h>
-#include <linux/profile.h>
-
-#include <asm/io.h>
-#include <asm/irq_regs.h>
-#include <asm/timer.h>
-
-#define	TICK_SIZE (tick_nsec / 1000)
-
-void h8300_timer_tick(void)
-{
-	if (current->pid)
-		profile_tick(CPU_PROFILING);
-	xtime_update(1);
-	update_process_times(user_mode(get_irq_regs()));
-}
-
-void read_persistent_clock(struct timespec *ts)
-{
-	unsigned int year, mon, day, hour, min, sec;
-
-	/* FIX by dqg : Set to zero for platforms that don't have tod */
-	/* without this time is undefined and can overflow time_t, causing  */
-	/* very strange errors */
-	year = 1980;
-	mon = day = 1;
-	hour = min = sec = 0;
-#ifdef CONFIG_H8300_GETTOD
-	h8300_gettod (&year, &mon, &day, &hour, &min, &sec);
-#endif
-	if ((year += 1900) < 1970)
-		year += 100;
-	ts->tv_sec = mktime(year, mon, day, hour, min, sec);
-	ts->tv_nsec = 0;
-}
-
-void __init time_init(void)
-{
-
-	h8300_timer_setup();
-}
diff --git a/arch/h8300/kernel/timer/Makefile b/arch/h8300/kernel/timer/Makefile
deleted file mode 100644
index bef0510ea6ad..000000000000
--- a/arch/h8300/kernel/timer/Makefile
+++ /dev/null
@@ -1,6 +0,0 @@
-# h8300 internal timer handler
-
-obj-$(CONFIG_H8300_TIMER8)  := timer8.o
-obj-$(CONFIG_H8300_TIMER16) := timer16.o
-obj-$(CONFIG_H8300_ITU)     := itu.o
-obj-$(CONFIG_H8300_TPU)     := tpu.o
diff --git a/arch/h8300/kernel/timer/itu.c b/arch/h8300/kernel/timer/itu.c
deleted file mode 100644
index 0a8b5cd5bf38..000000000000
--- a/arch/h8300/kernel/timer/itu.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- *  linux/arch/h8300/kernel/timer/itu.c
- *
- *  Yoshinori Sato <ysato@users.sourcefoge.jp>
- *
- *  ITU Timer Handler
- *
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/timex.h>
-
-#include <asm/segment.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/regs306x.h>
-
-#if CONFIG_H8300_ITU_CH == 0
-#define ITUBASE	0xffff64
-#define ITUIRQ	24
-#elif CONFIG_H8300_ITU_CH == 1
-#define ITUBASE	0xffff6e
-#define ITUIRQ	28
-#elif CONFIG_H8300_ITU_CH == 2
-#define ITUBASE	0xffff78
-#define ITUIRQ	32
-#elif CONFIG_H8300_ITU_CH == 3
-#define ITUBASE	0xffff82
-#define ITUIRQ	36
-#elif CONFIG_H8300_ITU_CH == 4
-#define ITUBASE	0xffff92
-#define ITUIRQ	40
-#else
-#error Unknown timer channel.
-#endif
-
-#define TCR	0
-#define TIOR	1
-#define TIER	2
-#define TSR	3
-#define TCNT	4
-#define GRA	6
-#define GRB	8
-
-static irqreturn_t timer_interrupt(int irq, void *dev_id)
-{
-	h8300_timer_tick();
-	ctrl_bclr(IMFA, ITUBASE + TSR);
-	return IRQ_HANDLED;
-}
-
-static struct irqaction itu_irq = {
-	.name		= "itu",
-	.handler	= timer_interrupt,
-	.flags		= IRQF_DISABLED | IRQF_TIMER,
-};
-
-static const int __initconst divide_rate[] = {1, 2, 4, 8};
-
-void __init h8300_timer_setup(void)
-{
-	unsigned int div;
-	unsigned int cnt;
-
-	calc_param(cnt, div, divide_rate, 0x10000);
-
-	setup_irq(ITUIRQ, &itu_irq);
-
-	/* initialize timer */
-	ctrl_outb(0, TSTR);
-	ctrl_outb(CCLR0 | div, ITUBASE + TCR);
-	ctrl_outb(0x01, ITUBASE + TIER);
-	ctrl_outw(cnt, ITUBASE + GRA);
-	ctrl_bset(CONFIG_H8300_ITU_CH, TSTR);
-}
diff --git a/arch/h8300/kernel/timer/timer16.c b/arch/h8300/kernel/timer/timer16.c
deleted file mode 100644
index 462d9f581719..000000000000
--- a/arch/h8300/kernel/timer/timer16.c
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- *  linux/arch/h8300/kernel/timer/timer16.c
- *
- *  Yoshinori Sato <ysato@users.sourcefoge.jp>
- *
- *  16bit Timer Handler
- *
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/timex.h>
-
-#include <asm/segment.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/regs306x.h>
-
-/* 16bit timer */
-#if CONFIG_H8300_TIMER16_CH == 0
-#define _16BASE	0xffff78
-#define _16IRQ	24
-#elif CONFIG_H8300_TIMER16_CH == 1
-#define _16BASE	0xffff80
-#define _16IRQ	28
-#elif CONFIG_H8300_TIMER16_CH == 2
-#define _16BASE	0xffff88
-#define _16IRQ	32
-#else
-#error Unknown timer channel.
-#endif
-
-#define TCR	0
-#define TIOR	1
-#define TCNT	2
-#define GRA	4
-#define GRB	6
-
-#define H8300_TIMER_FREQ CONFIG_CPU_CLOCK*10000 /* Timer input freq. */
-
-static irqreturn_t timer_interrupt(int irq, void *dev_id)
-{
-	h8300_timer_tick();
-	ctrl_bclr(CONFIG_H8300_TIMER16_CH, TISRA);
-	return IRQ_HANDLED;
-}
-
-static struct irqaction timer16_irq = {
-	.name		= "timer-16",
-	.handler	= timer_interrupt,
-	.flags		= IRQF_DISABLED | IRQF_TIMER,
-};
-
-static const int __initconst divide_rate[] = {1, 2, 4, 8};
-
-void __init h8300_timer_setup(void)
-{
-	unsigned int div;
-	unsigned int cnt;
-
-	calc_param(cnt, div, divide_rate, 0x10000);
-
-	setup_irq(_16IRQ, &timer16_irq);
-
-	/* initialize timer */
-	ctrl_outb(0, TSTR);
-	ctrl_outb(CCLR0 | div, _16BASE + TCR);
-	ctrl_outw(cnt, _16BASE + GRA);
-	ctrl_bset(4 + CONFIG_H8300_TIMER16_CH, TISRA);
-	ctrl_bset(CONFIG_H8300_TIMER16_CH, TSTR);
-}
diff --git a/arch/h8300/kernel/timer/timer8.c b/arch/h8300/kernel/timer/timer8.c
deleted file mode 100644
index 505f3415b40f..000000000000
--- a/arch/h8300/kernel/timer/timer8.c
+++ /dev/null
@@ -1,102 +0,0 @@
-/*
- *  linux/arch/h8300/kernel/cpu/timer/timer8.c
- *
- *  Yoshinori Sato <ysato@users.sourcefoge.jp>
- *
- *  8bit Timer Handler
- *
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/profile.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/timer.h>
-#if defined(CONFIG_CPU_H8300H)
-#include <asm/regs306x.h>
-#endif
-#if defined(CONFIG_CPU_H8S)
-#include <asm/regs267x.h>
-#endif
-
-/* 8bit timer x2 */
-#define CMFA	6
-
-#if defined(CONFIG_H8300_TIMER8_CH0)
-#define _8BASE	_8TCR0
-#ifdef CONFIG_CPU_H8300H
-#define _8IRQ	36
-#endif
-#ifdef CONFIG_CPU_H8S
-#define _8IRQ	72
-#endif
-#elif defined(CONFIG_H8300_TIMER8_CH2)
-#ifdef CONFIG_CPU_H8300H
-#define _8BASE	_8TCR2
-#define _8IRQ	40
-#endif
-#endif
-
-#ifndef _8BASE
-#error Unknown timer channel.
-#endif
-
-#define _8TCR	0
-#define _8TCSR	2
-#define TCORA	4
-#define TCORB	6
-#define _8TCNT	8
-
-#define CMIEA	0x40
-#define CCLR_CMA 0x08
-#define CKS2	0x04
-
-/*
- * timer_interrupt() needs to keep up the real-time clock,
- * as well as call the "xtime_update()" routine every clocktick
- */
-
-static irqreturn_t timer_interrupt(int irq, void *dev_id)
-{
-	h8300_timer_tick();
-	ctrl_bclr(CMFA, _8BASE + _8TCSR);
-	return IRQ_HANDLED;
-}
-
-static struct irqaction timer8_irq = {
-	.name		= "timer-8",
-	.handler	= timer_interrupt,
-	.flags		= IRQF_DISABLED | IRQF_TIMER,
-};
-
-static const int __initconst divide_rate[] = {8, 64, 8192};
-
-void __init h8300_timer_setup(void)
-{
-	unsigned int div;
-	unsigned int cnt;
-
-	calc_param(cnt, div, divide_rate, 0x10000);
-	div++;
-
-	setup_irq(_8IRQ, &timer8_irq);
-
-#if defined(CONFIG_CPU_H8S)
-	/* Timer module enable */
-	ctrl_bclr(0, MSTPCRL)
-#endif
-
-	/* initialize timer */
-	ctrl_outw(cnt, _8BASE + TCORA);
-	ctrl_outw(0x0000, _8BASE + _8TCSR);
-	ctrl_outw((CMIEA|CCLR_CMA|CKS2) << 8 | div,
-		  _8BASE + _8TCR);
-}
diff --git a/arch/h8300/kernel/timer/tpu.c b/arch/h8300/kernel/timer/tpu.c
deleted file mode 100644
index 0350f6204ecf..000000000000
--- a/arch/h8300/kernel/timer/tpu.c
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- *  linux/arch/h8300/kernel/timer/tpu.c
- *
- *  Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- *  TPU Timer Handler
- *
- */
-
-#include <linux/errno.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/timex.h>
-
-#include <asm/segment.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/regs267x.h>
-
-/* TPU */
-#if CONFIG_H8300_TPU_CH == 0
-#define TPUBASE	0xffffd0
-#define TPUIRQ	40
-#elif CONFIG_H8300_TPU_CH == 1
-#define TPUBASE	0xffffe0
-#define TPUIRQ	48
-#elif CONFIG_H8300_TPU_CH == 2
-#define TPUBASE	0xfffff0
-#define TPUIRQ	52
-#elif CONFIG_H8300_TPU_CH == 3
-#define TPUBASE	0xfffe80
-#define TPUIRQ	56
-#elif CONFIG_H8300_TPU_CH == 4
-#define TPUBASE	0xfffe90
-#define TPUIRQ	64
-#else
-#error Unknown timer channel.
-#endif
-
-#define _TCR	0
-#define _TMDR	1
-#define _TIOR	2
-#define _TIER	4
-#define _TSR	5
-#define _TCNT	6
-#define _GRA	8
-#define _GRB	10
-
-#define CCLR0	0x20
-
-static irqreturn_t timer_interrupt(int irq, void *dev_id)
-{
-	h8300_timer_tick();
-	ctrl_bclr(0, TPUBASE + _TSR);
-	return IRQ_HANDLED;
-}
-
-static struct irqaction tpu_irq = {
-	.name		= "tpu",
-	.handler	= timer_interrupt,
-	.flags		= IRQF_DISABLED | IRQF_TIMER,
-};
-
-static const int __initconst divide_rate[] = {
-#if CONFIG_H8300_TPU_CH == 0
-	1,4,16,64,0,0,0,0,
-#elif (CONFIG_H8300_TPU_CH == 1) || (CONFIG_H8300_TPU_CH == 5)
-	1,4,16,64,0,0,256,0,
-#elif (CONFIG_H8300_TPU_CH == 2) || (CONFIG_H8300_TPU_CH == 4)
-	1,4,16,64,0,0,0,1024,
-#elif CONFIG_H8300_TPU_CH == 3
-	1,4,16,64,0,1024,256,4096,
-#endif
-};
-
-void __init h8300_timer_setup(void)
-{
-	unsigned int cnt;
-	unsigned int div;
-
-	calc_param(cnt, div, divide_rate, 0x10000);
-
-	setup_irq(TPUIRQ, &tpu_irq);
-
-	/* TPU module enabled */
-	ctrl_bclr(3, MSTPCRH);
-
-	ctrl_outb(0, TSTR);
-	ctrl_outb(CCLR0 | div, TPUBASE + _TCR);
-	ctrl_outb(0, TPUBASE + _TMDR);
-	ctrl_outw(0, TPUBASE + _TIOR);
-	ctrl_outb(0x01, TPUBASE + _TIER);
-	ctrl_outw(cnt, TPUBASE + _GRA);
-	ctrl_bset(CONFIG_H8300_TPU_CH, TSTR);
-}
diff --git a/arch/h8300/kernel/traps.c b/arch/h8300/kernel/traps.c
deleted file mode 100644
index cfe494dbe3da..000000000000
--- a/arch/h8300/kernel/traps.c
+++ /dev/null
@@ -1,166 +0,0 @@
-/*
- * linux/arch/h8300/boot/traps.c -- general exception handling code
- * H8/300 support Yoshinori Sato <ysato@users.sourceforge.jp>
- * 
- * Cloned from Linux/m68k.
- *
- * No original Copyright holder listed,
- * Probable original (C) Roman Zippel (assigned DJD, 1999)
- *
- * Copyright 1999-2000 D. Jeff Dionne, <jeff@rt-control.com>
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file COPYING in the main directory of this archive
- * for more details.
- */
-
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/bug.h>
-
-#include <asm/irq.h>
-#include <asm/traps.h>
-#include <asm/page.h>
-
-static DEFINE_SPINLOCK(die_lock);
-
-/*
- * this must be called very early as the kernel might
- * use some instruction that are emulated on the 060
- */
-
-void __init base_trap_init(void)
-{
-}
-
-void __init trap_init (void)
-{
-}
-
-asmlinkage void set_esp0 (unsigned long ssp)
-{
-	current->thread.esp0 = ssp;
-}
-
-/*
- *	Generic dumping code. Used for panic and debug.
- */
-
-static void dump(struct pt_regs *fp)
-{
-	unsigned long	*sp;
-	unsigned char	*tp;
-	int		i;
-
-	printk("\nCURRENT PROCESS:\n\n");
-	printk("COMM=%s PID=%d\n", current->comm, current->pid);
-	if (current->mm) {
-		printk("TEXT=%08x-%08x DATA=%08x-%08x BSS=%08x-%08x\n",
-			(int) current->mm->start_code,
-			(int) current->mm->end_code,
-			(int) current->mm->start_data,
-			(int) current->mm->end_data,
-			(int) current->mm->end_data,
-			(int) current->mm->brk);
-		printk("USER-STACK=%08x  KERNEL-STACK=%08lx\n\n",
-			(int) current->mm->start_stack,
-			(int) PAGE_SIZE+(unsigned long)current);
-	}
-
-	show_regs(fp);
-	printk("\nCODE:");
-	tp = ((unsigned char *) fp->pc) - 0x20;
-	for (sp = (unsigned long *) tp, i = 0; (i < 0x40);  i += 4) {
-		if ((i % 0x10) == 0)
-			printk("\n%08x: ", (int) (tp + i));
-		printk("%08x ", (int) *sp++);
-	}
-	printk("\n");
-
-	printk("\nKERNEL STACK:");
-	tp = ((unsigned char *) fp) - 0x40;
-	for (sp = (unsigned long *) tp, i = 0; (i < 0xc0); i += 4) {
-		if ((i % 0x10) == 0)
-			printk("\n%08x: ", (int) (tp + i));
-		printk("%08x ", (int) *sp++);
-	}
-	printk("\n");
-	if (STACK_MAGIC != *(unsigned long *)((unsigned long)current+PAGE_SIZE))
-                printk("(Possibly corrupted stack page??)\n");
-
-	printk("\n\n");
-}
-
-void die(const char *str, struct pt_regs *fp, unsigned long err)
-{
-	static int diecount;
-
-	oops_enter();
-
-	console_verbose();
-	spin_lock_irq(&die_lock);
-	report_bug(fp->pc, fp);
-	printk(KERN_EMERG "%s: %04lx [#%d] ", str, err & 0xffff, ++diecount);
-	dump(fp);
-
-	spin_unlock_irq(&die_lock);
-	do_exit(SIGSEGV);
-}
-
-extern char _start, _etext;
-#define check_kernel_text(addr) \
-        ((addr >= (unsigned long)(&_start)) && \
-         (addr <  (unsigned long)(&_etext))) 
-
-static int kstack_depth_to_print = 24;
-
-void show_stack(struct task_struct *task, unsigned long *esp)
-{
-	unsigned long *stack,  addr;
-	int i;
-
-	if (esp == NULL)
-		esp = (unsigned long *) &esp;
-
-	stack = esp;
-
-	printk("Stack from %08lx:", (unsigned long)stack);
-	for (i = 0; i < kstack_depth_to_print; i++) {
-		if (((unsigned long)stack & (THREAD_SIZE - 1)) == 0)
-			break;
-		if (i % 8 == 0)
-			printk("\n       ");
-		printk(" %08lx", *stack++);
-	}
-
-	printk("\nCall Trace:");
-	i = 0;
-	stack = esp;
-	while (((unsigned long)stack & (THREAD_SIZE - 1)) != 0) {
-		addr = *stack++;
-		/*
-		 * If the address is either in the text segment of the
-		 * kernel, or in the region which contains vmalloc'ed
-		 * memory, it *may* be the address of a calling
-		 * routine; if so, print it so that someone tracing
-		 * down the cause of the crash will be able to figure
-		 * out the call path that was taken.
-		 */
-		if (check_kernel_text(addr)) {
-			if (i % 4 == 0)
-				printk("\n       ");
-			printk(" [<%08lx>]", addr);
-			i++;
-		}
-	}
-	printk("\n");
-}
-
-void show_trace_task(struct task_struct *tsk)
-{
-	show_stack(tsk,(unsigned long *)tsk->thread.esp0);
-}
diff --git a/arch/h8300/kernel/vmlinux.lds.S b/arch/h8300/kernel/vmlinux.lds.S
deleted file mode 100644
index 3253fed42ac1..000000000000
--- a/arch/h8300/kernel/vmlinux.lds.S
+++ /dev/null
@@ -1,157 +0,0 @@
-#include <asm-generic/vmlinux.lds.h>
-#include <asm/page.h>
-
-/* target memory map */
-#ifdef CONFIG_H8300H_GENERIC
-#define ROMTOP  0x000000
-#define ROMSIZE 0x400000
-#define RAMTOP  0x400000
-#define RAMSIZE 0x400000
-#endif
-
-#ifdef CONFIG_H8300H_AKI3068NET
-#define ROMTOP  0x000000
-#define ROMSIZE 0x080000
-#define RAMTOP  0x400000
-#define RAMSIZE 0x200000
-#endif
-
-#ifdef CONFIG_H8300H_H8MAX
-#define ROMTOP  0x000000
-#define ROMSIZE 0x080000
-#define RAMTOP  0x400000
-#define RAMSIZE 0x200000
-#endif
-
-#ifdef CONFIG_H8300H_SIM
-#define ROMTOP  0x000000
-#define ROMSIZE 0x400000
-#define RAMTOP  0x400000
-#define RAMSIZE 0x400000
-#endif
-
-#ifdef CONFIG_H8S_SIM
-#define ROMTOP  0x000000
-#define ROMSIZE 0x400000
-#define RAMTOP  0x400000
-#define RAMSIZE 0x800000
-#endif
-
-#ifdef CONFIG_H8S_EDOSK2674
-#define ROMTOP  0x000000
-#define ROMSIZE 0x400000
-#define RAMTOP  0x400000
-#define RAMSIZE 0x800000
-#endif
-
-#if defined(CONFIG_H8300H_SIM) || defined(CONFIG_H8S_SIM)
-INPUT(romfs.o)
-#endif
-
-_jiffies = _jiffies_64 + 4;
-
-ENTRY(__start)
-
-SECTIONS
-{
-#if defined(CONFIG_ROMKERNEL)
-	. = ROMTOP; 
-	.vectors :
-	{
-	__vector = . ;
-		*(.vectors*)
-	}
-#else
-	. = RAMTOP; 
-	.bootvec :	
-	{
-		*(.bootvec)
-	}
-#endif
-        .text :
-	{
-	_text = .;
-#if defined(CONFIG_ROMKERNEL)
-	*(.int_redirect)
-#endif
-	__stext = . ;
-	TEXT_TEXT
-	SCHED_TEXT
-	LOCK_TEXT
-	__etext = . ;
-	}
-	EXCEPTION_TABLE(16)
-
-	RODATA
-#if defined(CONFIG_ROMKERNEL)
-	SECURITY_INIT
-#endif
-	ROEND = .; 
-#if defined(CONFIG_ROMKERNEL)
-	. = RAMTOP;
-	.data :	AT(ROEND)
-#else
-	.data :	
-#endif
-	{
-	__sdata = . ;
-	___data_start = . ;
-
-	INIT_TASK_DATA(0x2000)
-	. = ALIGN(0x4) ;
-		DATA_DATA
-	. = ALIGN(0x4) ;
-		*(.data.*)	
-
-	. = ALIGN(0x4) ;
-	___init_begin = .;
-	__sinittext = .; 
-		INIT_TEXT
-	__einittext = .; 
-		INIT_DATA
-	. = ALIGN(0x4) ;
-	INIT_SETUP(0x4)
-	___setup_start = .;
-		*(.init.setup)
-	. = ALIGN(0x4) ;
-	___setup_end = .;
-	INIT_CALLS
-	CON_INITCALL
-		EXIT_TEXT
-		EXIT_DATA
-	INIT_RAM_FS
-	. = ALIGN(0x4) ;
-	___init_end = .;
-	__edata = . ;
-	}
-#if defined(CONFIG_RAMKERNEL)
-	SECURITY_INIT
-#endif
-	__begin_data = LOADADDR(.data);
-        .bss : 
-        {
-	. = ALIGN(0x4) ;
-	__sbss = . ;
-	___bss_start = . ;
-		*(.bss*)
-	. = ALIGN(0x4) ;
-		*(COMMON)
-	. = ALIGN(0x4) ;
-	___bss_stop = . ;
-	__ebss = . ;
-	__end = . ;
-	__ramstart = .;
-	}
-        .romfs :	
-	{
-		*(.romfs*)
-	}
-	. = RAMTOP+RAMSIZE;
-        .dummy :
-        {
-	COMMAND_START = . - 0x200 ;
-	__ramend = . ;
-	}
-
-	DISCARDS
-}
diff --git a/arch/h8300/lib/Makefile b/arch/h8300/lib/Makefile
deleted file mode 100644
index 1577f5075b10..000000000000
--- a/arch/h8300/lib/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Makefile for H8/300-specific library files..
-#
-
-lib-y  = ashrdi3.o checksum.o memcpy.o memset.o abs.o romfs.o
diff --git a/arch/h8300/lib/abs.S b/arch/h8300/lib/abs.S
deleted file mode 100644
index ddd1fb3d01ad..000000000000
--- a/arch/h8300/lib/abs.S
+++ /dev/null
@@ -1,21 +0,0 @@
-;;; abs.S
-
-#include <asm/linkage.h>
-
-#if defined(__H8300H__) 
-	.h8300h
-#endif
-#if defined(__H8300S__) 
-	.h8300s
-#endif
-	.text
-.global _abs
-
-;;; int abs(int n)
-_abs:
-	mov.l	er0,er0
-	bpl	1f
-	neg.l	er0
-1:
-	rts
-	
diff --git a/arch/h8300/lib/ashrdi3.c b/arch/h8300/lib/ashrdi3.c
deleted file mode 100644
index 78efb65e315a..000000000000
--- a/arch/h8300/lib/ashrdi3.c
+++ /dev/null
@@ -1,63 +0,0 @@
-/* ashrdi3.c extracted from gcc-2.7.2/libgcc2.c which is: */
-/* Copyright (C) 1989, 1992, 1993, 1994, 1995 Free Software Foundation, Inc.
-
-This file is part of GNU CC.
-
-GNU CC is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
-any later version.
-
-GNU CC is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING.  If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.  */
-
-#define BITS_PER_UNIT 8
-
-typedef 	 int SItype	__attribute__ ((mode (SI)));
-typedef unsigned int USItype	__attribute__ ((mode (SI)));
-typedef		 int DItype	__attribute__ ((mode (DI)));
-typedef int word_type __attribute__ ((mode (__word__)));
-
-struct DIstruct {SItype high, low;};
-
-typedef union
-{
-  struct DIstruct s;
-  DItype ll;
-} DIunion;
-
-DItype
-__ashrdi3 (DItype u, word_type b)
-{
-  DIunion w;
-  word_type bm;
-  DIunion uu;
-
-  if (b == 0)
-    return u;
-
-  uu.ll = u;
-
-  bm = (sizeof (SItype) * BITS_PER_UNIT) - b;
-  if (bm <= 0)
-    {
-      /* w.s.high = 1..1 or 0..0 */
-      w.s.high = uu.s.high >> (sizeof (SItype) * BITS_PER_UNIT - 1);
-      w.s.low = uu.s.high >> -bm;
-    }
-  else
-    {
-      USItype carries = (USItype)uu.s.high << bm;
-      w.s.high = uu.s.high >> b;
-      w.s.low = ((USItype)uu.s.low >> b) | carries;
-    }
-
-  return w.ll;
-}
diff --git a/arch/h8300/lib/checksum.c b/arch/h8300/lib/checksum.c
deleted file mode 100644
index bdc5b032acd6..000000000000
--- a/arch/h8300/lib/checksum.c
+++ /dev/null
@@ -1,164 +0,0 @@
-/*
- * INET		An implementation of the TCP/IP protocol suite for the LINUX
- *		operating system.  INET is implemented using the  BSD Socket
- *		interface as the means of communication with the user level.
- *
- *		IP/TCP/UDP checksumming routines
- *
- * Authors:	Jorge Cwik, <jorge@laser.satlink.net>
- *		Arnt Gulbrandsen, <agulbra@nvg.unit.no>
- *		Tom May, <ftom@netcom.com>
- *		Andreas Schwab, <schwab@issan.informatik.uni-dortmund.de>
- *		Lots of code moved from tcp.c and ip.c; see those files
- *		for more names.
- *
- * 03/02/96	Jes Sorensen, Andreas Schwab, Roman Hodek:
- *		Fixed some nasty bugs, causing some horrible crashes.
- *		A: At some points, the sum (%0) was used as
- *		length-counter instead of the length counter
- *		(%1). Thanks to Roman Hodek for pointing this out.
- *		B: GCC seems to mess up if one uses too many
- *		data-registers to hold input values and one tries to
- *		specify d0 and d1 as scratch registers. Letting gcc choose these
- *      registers itself solves the problem.
- *
- *		This program is free software; you can redistribute it and/or
- *		modify it under the terms of the GNU General Public License
- *		as published by the Free Software Foundation; either version
- *		2 of the License, or (at your option) any later version.
- */
- 
-/* Revised by Kenneth Albanowski for m68knommu. Basic problem: unaligned access kills, so most
-   of the assembly has to go. */
-
-#include <net/checksum.h>
-#include <linux/module.h>
-
-static inline unsigned short from32to16(unsigned long x)
-{
-	/* add up 16-bit and 16-bit for 16+c bit */
-	x = (x & 0xffff) + (x >> 16);
-	/* add up carry.. */
-	x = (x & 0xffff) + (x >> 16);
-	return x;
-}
-
-static unsigned long do_csum(const unsigned char * buff, int len)
-{
-	int odd, count;
-	unsigned long result = 0;
-
-	if (len <= 0)
-		goto out;
-	odd = 1 & (unsigned long) buff;
-	if (odd) {
-		result = *buff;
-		len--;
-		buff++;
-	}
-	count = len >> 1;		/* nr of 16-bit words.. */
-	if (count) {
-		if (2 & (unsigned long) buff) {
-			result += *(unsigned short *) buff;
-			count--;
-			len -= 2;
-			buff += 2;
-		}
-		count >>= 1;		/* nr of 32-bit words.. */
-		if (count) {
-		        unsigned long carry = 0;
-			do {
-				unsigned long w = *(unsigned long *) buff;
-				count--;
-				buff += 4;
-				result += carry;
-				result += w;
-				carry = (w > result);
-			} while (count);
-			result += carry;
-			result = (result & 0xffff) + (result >> 16);
-		}
-		if (len & 2) {
-			result += *(unsigned short *) buff;
-			buff += 2;
-		}
-	}
-	if (len & 1)
-		result += (*buff << 8);
-	result = from32to16(result);
-	if (odd)
-		result = ((result >> 8) & 0xff) | ((result & 0xff) << 8);
-out:
-	return result;
-}
-
-/*
- *	This is a version of ip_compute_csum() optimized for IP headers,
- *	which always checksum on 4 octet boundaries.
- */
-__sum16 ip_fast_csum(const void *iph, unsigned int ihl)
-{
-	return (__force __sum16)~do_csum(iph,ihl*4);
-}
-
-/*
- * computes the checksum of a memory block at buff, length len,
- * and adds in "sum" (32-bit)
- *
- * returns a 32-bit number suitable for feeding into itself
- * or csum_tcpudp_magic
- *
- * this function must be called with even lengths, except
- * for the last fragment, which may be odd
- *
- * it's best to have buff aligned on a 32-bit boundary
- */
-/*
- * Egads...  That thing apparently assumes that *all* checksums it ever sees will
- * be folded.  Very likely a bug.
- */
-__wsum csum_partial(const void *buff, int len, __wsum sum)
-{
-	unsigned int result = do_csum(buff, len);
-
-	/* add in old sum, and carry.. */
-	result += (__force u32)sum;
-	/* 16+c bits -> 16 bits */
-	result = (result & 0xffff) + (result >> 16);
-	return (__force __wsum)result;
-}
-
-EXPORT_SYMBOL(csum_partial);
-
-/*
- * this routine is used for miscellaneous IP-like checksums, mainly
- * in icmp.c
- */
-__sum16 ip_compute_csum(const void *buff, int len)
-{
-	return (__force __sum16)~do_csum(buff,len);
-}
-
-/*
- * copy from fs while checksumming, otherwise like csum_partial
- */
-
-__wsum
-csum_partial_copy_from_user(const void __user *src, void *dst, int len,
-			    __wsum sum, int *csum_err)
-{
-	if (csum_err) *csum_err = 0;
-	memcpy(dst, (__force const void *)src, len);
-	return csum_partial(dst, len, sum);
-}
-
-/*
- * copy from ds while checksumming, otherwise like csum_partial
- */
-
-__wsum
-csum_partial_copy_nocheck(const void *src, void *dst, int len, __wsum sum)
-{
-	memcpy(dst, src, len);
-	return csum_partial(dst, len, sum);
-}
diff --git a/arch/h8300/lib/memcpy.S b/arch/h8300/lib/memcpy.S
deleted file mode 100644
index cad325e2c0e8..000000000000
--- a/arch/h8300/lib/memcpy.S
+++ /dev/null
@@ -1,84 +0,0 @@
-;;; memcpy.S
-
-#include <asm/linkage.h>
-
-#if defined(__H8300H__) 
-	.h8300h
-#endif
-#if defined(__H8300S__) 
-	.h8300s
-#endif
-
-	.text
-.global _memcpy
-
-;;; void *memcpy(void *to, void *from, size_t n)
-_memcpy:
-	mov.l	er2,er2
-	bne	1f
-	rts	
-1:	
-	;; address check
-	bld	#0,r0l
-	bxor	#0,r1l
-	bcs	4f
-	mov.l	er4,@-sp
-	mov.l	er0,@-sp
-	btst	#0,r0l
-	beq	1f
-	;; (aligned even) odd address
-	mov.b	@er1,r3l
-	mov.b	r3l,@er0
-	adds	#1,er1
-	adds	#1,er0
-	dec.l	#1,er2
-	beq	3f
-1:	
-	;; n < sizeof(unsigned long) check
-	sub.l	er4,er4
-	adds	#4,er4		; loop count check value
-	cmp.l	er4,er2
-	blo	2f
-	;; unsigned long copy
-1:	
-	mov.l	@er1,er3
-	mov.l	er3,@er0
-	adds	#4,er0
-	adds	#4,er1
-	subs	#4,er2
-	cmp.l	er4,er2
-	bcc	1b	
-	;; rest
-2:	
-	mov.l	er2,er2
-	beq	3f
-1:	
-	mov.b	@er1,r3l
-	mov.b	r3l,@er0
-	adds	#1,er1
-	adds	#1,er0
-	dec.l	#1,er2
-	bne	1b
-3:
-	mov.l	@sp+,er0
-	mov.l	@sp+,er4
-	rts
-
-	;; odd <- even / even <- odd
-4:	
-	mov.l	er4,er3
-	mov.l	er2,er4
-	mov.l	er5,er2
-	mov.l	er1,er5
-	mov.l	er6,er1
-	mov.l	er0,er6
-1:
-	eepmov.w
-	mov.w	r4,r4
-	bne	1b
-	dec.w	#1,e4
-	bpl	1b
-	mov.l	er1,er6
-	mov.l	er2,er5
-	mov.l	er3,er4
-	rts
diff --git a/arch/h8300/lib/memset.S b/arch/h8300/lib/memset.S
deleted file mode 100644
index 4549a64c5b79..000000000000
--- a/arch/h8300/lib/memset.S
+++ /dev/null
@@ -1,61 +0,0 @@
-/* memset.S */
-
-#include <asm/linkage.h>
-
-#if defined(__H8300H__) 
-	.h8300h
-#endif
-#if defined(__H8300S__) 
-	.h8300s
-#endif
-	.text
-
-.global	_memset
-
-;;void *memset(*ptr, int c, size_t count)
-;; ptr = er0
-;; c   = er1(r1l)
-;; count = er2
-_memset:
-	btst	#0,r0l
-	beq	2f
-
-	;; odd address
-1:
-	mov.b	r1l,@er0
-	adds	#1,er0
-	dec.l	#1,er2
-	beq	6f
-
-	;; even address
-2:
-	mov.l	er2,er3
-	cmp.l	#4,er2
-	blo	4f
-	;; count>=4 -> count/4
-#if defined(__H8300H__)
-	shlr.l	er2
-	shlr.l	er2
-#endif
-#if defined(__H8300S__)
-	shlr.l	#2,er2
-#endif
-	;; byte -> long
-	mov.b	r1l,r1h
-	mov.w	r1,e1
-3:
-	mov.l	er1,@er0
-	adds	#4,er0
-	dec.l	#1,er2
-	bne	3b
-4:
-	;; count % 4
-	and.b	#3,r3l
-	beq	6f
-5:
-	mov.b	r1l,@er0
-	adds	#1,er0
-	dec.b	r3l
-	bne	5b
-6:
-	rts
diff --git a/arch/h8300/lib/romfs.S b/arch/h8300/lib/romfs.S
deleted file mode 100644
index 68910d8e1ff4..000000000000
--- a/arch/h8300/lib/romfs.S
+++ /dev/null
@@ -1,57 +0,0 @@
-/* romfs move to __ebss */
-
-#include <asm/linkage.h>
-
-#if defined(__H8300H__) 
-	.h8300h
-#endif
-#if defined(__H8300S__) 
-	.h8300s
-#endif
-
-#define BLKOFFSET 512
-
-	.text
-.globl	__move_romfs
-_romfs_sig_len = 8
-
-__move_romfs:	
-	mov.l	#__sbss,er0
-	mov.l	#_romfs_sig,er1
-	mov.b	#_romfs_sig_len,r3l
-1:					/* check romfs image */
-	mov.b	@er0+,r2l
-	mov.b	@er1+,r2h
-	cmp.b	r2l,r2h
-	bne	2f
-	dec.b	r3l
-	bne	1b
-
-	/* find romfs image */
-	mov.l	@__sbss+8,er0		/* romfs length(be) */
-	mov.l	#__sbss,er1
-	add.l	er0,er1			/* romfs image end */
-	mov.l	#__ebss,er2
-	add.l	er0,er2			/* distination address */
-#if defined(CONFIG_INTELFLASH)
-	add.l	#BLKOFFSET,er2
-#endif
-	adds	#2,er0
-	adds	#1,er0
-	shlr	er0
-	shlr	er0			/* transfer length */
-1:
-	mov.l	@er1,er3		/* copy image */
-	mov.l	er3,@er2
-	subs	#4,er1
-	subs	#4,er2
-	dec.l	#1,er0
-	bpl	1b
-2:
-	rts
-
-	.section	.rodata
-_romfs_sig:	
-	.ascii	"-rom1fs-"
-
-	.end
diff --git a/arch/h8300/mm/Makefile b/arch/h8300/mm/Makefile
deleted file mode 100644
index 5f4bc42b6453..000000000000
--- a/arch/h8300/mm/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Makefile for the linux m68k-specific parts of the memory manager.
-#
-
-obj-y	 := init.o fault.o memory.o kmap.o
diff --git a/arch/h8300/mm/fault.c b/arch/h8300/mm/fault.c
deleted file mode 100644
index 472535977006..000000000000
--- a/arch/h8300/mm/fault.c
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- *  linux/arch/h8300/mm/fault.c
- *
- *  Copyright (C) 1998  D. Jeff Dionne <jeff@lineo.ca>,
- *  Copyright (C) 2000  Lineo, Inc.  (www.lineo.com) 
- *
- *  Based on:
- *
- *  linux/arch/m68knommu/mm/fault.c
- *  linux/arch/m68k/mm/fault.c
- *
- *  Copyright (C) 1995  Hamish Macdonald
- */
-
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/kernel.h>
-#include <linux/ptrace.h>
-
-#include <asm/pgtable.h>
-
-/*
- * This routine handles page faults.  It determines the problem, and
- * then passes it off to one of the appropriate routines.
- *
- * error_code:
- *	bit 0 == 0 means no page found, 1 means protection fault
- *	bit 1 == 0 means read, 1 means write
- *
- * If this routine detects a bad access, it returns 1, otherwise it
- * returns 0.
- */
-asmlinkage int do_page_fault(struct pt_regs *regs, unsigned long address,
-			      unsigned long error_code)
-{
-#ifdef DEBUG
-	printk ("regs->sr=%#x, regs->pc=%#lx, address=%#lx, %ld\n",
-		regs->sr, regs->pc, address, error_code);
-#endif
-
-/*
- * Oops. The kernel tried to access some bad page. We'll have to
- * terminate things with extreme prejudice.
- */
-	if ((unsigned long) address < PAGE_SIZE) {
-		printk(KERN_ALERT "Unable to handle kernel NULL pointer dereference");
-	} else
-		printk(KERN_ALERT "Unable to handle kernel access");
-	printk(" at virtual address %08lx\n",address);
-	if (!user_mode(regs))
-		die("Oops", regs, error_code);
-	do_exit(SIGKILL);
-
-	return 1;
-}
-
diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c
deleted file mode 100644
index 6c1251e491af..000000000000
--- a/arch/h8300/mm/init.c
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
- *  linux/arch/h8300/mm/init.c
- *
- *  Copyright (C) 1998  D. Jeff Dionne <jeff@lineo.ca>,
- *                      Kenneth Albanowski <kjahds@kjahds.com>,
- *  Copyright (C) 2000  Lineo, Inc.  (www.lineo.com) 
- *
- *  Based on:
- *
- *  linux/arch/m68knommu/mm/init.c
- *  linux/arch/m68k/mm/init.c
- *
- *  Copyright (C) 1995  Hamish Macdonald
- *
- *  JAN/1999 -- hacked to support ColdFire (gerg@snapgear.com)
- *  DEC/2000 -- linux 2.4 support <davidm@snapgear.com>
- */
-
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/mman.h>
-#include <linux/mm.h>
-#include <linux/swap.h>
-#include <linux/init.h>
-#include <linux/highmem.h>
-#include <linux/pagemap.h>
-#include <linux/bootmem.h>
-#include <linux/gfp.h>
-
-#include <asm/setup.h>
-#include <asm/segment.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/sections.h>
-
-#undef DEBUG
-
-/*
- * BAD_PAGE is the page that is used for page faults when linux
- * is out-of-memory. Older versions of linux just did a
- * do_exit(), but using this instead means there is less risk
- * for a process dying in kernel mode, possibly leaving a inode
- * unused etc..
- *
- * BAD_PAGETABLE is the accompanying page-table: it is initialized
- * to point to BAD_PAGE entries.
- *
- * ZERO_PAGE is a special page that is used for zero-initialized
- * data and COW.
- */
-static unsigned long empty_bad_page_table;
-
-static unsigned long empty_bad_page;
-
-unsigned long empty_zero_page;
-
-extern unsigned long rom_length;
-
-extern unsigned long memory_start;
-extern unsigned long memory_end;
-
-/*
- * paging_init() continues the virtual memory environment setup which
- * was begun by the code in arch/head.S.
- * The parameters are pointers to where to stick the starting and ending
- * addresses of available kernel virtual memory.
- */
-void __init paging_init(void)
-{
-	/*
-	 * Make sure start_mem is page aligned,  otherwise bootmem and
-	 * page_alloc get different views og the world.
-	 */
-#ifdef DEBUG
-	unsigned long start_mem = PAGE_ALIGN(memory_start);
-#endif
-	unsigned long end_mem   = memory_end & PAGE_MASK;
-
-#ifdef DEBUG
-	printk ("start_mem is %#lx\nvirtual_end is %#lx\n",
-		start_mem, end_mem);
-#endif
-
-	/*
-	 * Initialize the bad page table and bad page to point
-	 * to a couple of allocated pages.
-	 */
-	empty_bad_page_table = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
-	empty_bad_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
-	empty_zero_page = (unsigned long)alloc_bootmem_pages(PAGE_SIZE);
-	memset((void *)empty_zero_page, 0, PAGE_SIZE);
-
-	/*
-	 * Set up SFC/DFC registers (user data space).
-	 */
-	set_fs (USER_DS);
-
-#ifdef DEBUG
-	printk ("before free_area_init\n");
-
-	printk ("free_area_init -> start_mem is %#lx\nvirtual_end is %#lx\n",
-		start_mem, end_mem);
-#endif
-
-	{
-		unsigned long zones_size[MAX_NR_ZONES] = {0, };
-
-		zones_size[ZONE_DMA]     = 0 >> PAGE_SHIFT;
-		zones_size[ZONE_NORMAL]  = (end_mem - PAGE_OFFSET) >> PAGE_SHIFT;
-#ifdef CONFIG_HIGHMEM
-		zones_size[ZONE_HIGHMEM] = 0;
-#endif
-		free_area_init(zones_size);
-	}
-}
-
-void __init mem_init(void)
-{
-	unsigned long codesize = _etext - _stext;
-
-	pr_devel("Mem_init: start=%lx, end=%lx\n", memory_start, memory_end);
-
-	high_memory = (void *) (memory_end & PAGE_MASK);
-	max_mapnr = MAP_NR(high_memory);
-
-	/* this will put all low memory onto the freelists */
-	free_all_bootmem();
-
-	mem_init_print_info(NULL);
-	if (rom_length > 0 && rom_length > codesize)
-		pr_info("Memory available: %luK/%luK ROM\n",
-			(rom_length - codesize) >> 10, rom_length >> 10);
-}
-
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void free_initrd_mem(unsigned long start, unsigned long end)
-{
-	free_reserved_area((void *)start, (void *)end, -1, "initrd");
-}
-#endif
-
-void
-free_initmem(void)
-{
-#ifdef CONFIG_RAMKERNEL
-	free_initmem_default(-1);
-#endif
-}
-
diff --git a/arch/h8300/mm/kmap.c b/arch/h8300/mm/kmap.c
deleted file mode 100644
index f79edcdadf39..000000000000
--- a/arch/h8300/mm/kmap.c
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- *  linux/arch/h8300/mm/kmap.c
- *  
- *  Based on
- *  linux/arch/m68knommu/mm/kmap.c
- *
- *  Copyright (C) 2000 Lineo, <davidm@snapgear.com>
- *  Copyright (C) 2000-2002 David McCullough <davidm@snapgear.com>
- */
-
-#include <linux/mm.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/types.h>
-#include <linux/vmalloc.h>
-
-#include <asm/setup.h>
-#include <asm/segment.h>
-#include <asm/page.h>
-#include <asm/pgalloc.h>
-#include <asm/io.h>
-
-#undef DEBUG
-
-#define VIRT_OFFSET (0x01000000)
-
-/*
- * Map some physical address range into the kernel address space.
- */
-void *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag)
-{
-	return (void *)(physaddr + VIRT_OFFSET);
-}
-
-/*
- * Unmap a ioremap()ed region again.
- */
-void iounmap(void *addr)
-{
-}
-
-/*
- * __iounmap unmaps nearly everything, so be careful
- * it doesn't free currently pointer/page tables anymore but it
- * wans't used anyway and might be added later.
- */
-void __iounmap(void *addr, unsigned long size)
-{
-}
-
-/*
- * Set new cache mode for some kernel address space.
- * The caller must push data for that range itself, if such data may already
- * be in the cache.
- */
-void kernel_set_cachemode(void *addr, unsigned long size, int cmode)
-{
-}
diff --git a/arch/h8300/mm/memory.c b/arch/h8300/mm/memory.c
deleted file mode 100644
index 06e364641392..000000000000
--- a/arch/h8300/mm/memory.c
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
- *  linux/arch/h8300/mm/memory.c
- *
- *  Copyright (C) 2002  Yoshinori Sato <ysato@users.sourceforge.jp>,
- *
- *  Based on:
- *
- *  linux/arch/m68knommu/mm/memory.c
- *
- *  Copyright (C) 1998  Kenneth Albanowski <kjahds@kjahds.com>,
- *  Copyright (C) 1999-2002, Greg Ungerer (gerg@snapgear.com)
- *
- *  Based on:
- *
- *  linux/arch/m68k/mm/memory.c
- *
- *  Copyright (C) 1995  Hamish Macdonald
- */
-
-#include <linux/mm.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/types.h>
-
-#include <asm/setup.h>
-#include <asm/segment.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-#include <asm/traps.h>
-#include <asm/io.h>
-
-void cache_clear (unsigned long paddr, int len)
-{
-}
-
-
-void cache_push (unsigned long paddr, int len)
-{
-}
-
-void cache_push_v (unsigned long vaddr, int len)
-{
-}
-
-/*
- * Map some physical address range into the kernel address space.
- */
-
-unsigned long kernel_map(unsigned long paddr, unsigned long size,
-			 int nocacheflag, unsigned long *memavailp )
-{
-	return paddr;
-}
-
diff --git a/arch/h8300/platform/h8300h/Makefile b/arch/h8300/platform/h8300h/Makefile
deleted file mode 100644
index 420f73b0d962..000000000000
--- a/arch/h8300/platform/h8300h/Makefile
+++ /dev/null
@@ -1,7 +0,0 @@
-#
-# Makefile for the linux kernel.
-#
-# Reuse any files we can from the H8/300H
-#
-
-obj-y := irq.o ptrace_h8300h.o
diff --git a/arch/h8300/platform/h8300h/aki3068net/Makefile b/arch/h8300/platform/h8300h/aki3068net/Makefile
deleted file mode 100644
index b7ff78050b7f..000000000000
--- a/arch/h8300/platform/h8300h/aki3068net/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Makefile for the linux kernel.
-#
-
-extra-y := crt0_ram.o
diff --git a/arch/h8300/platform/h8300h/aki3068net/crt0_ram.S b/arch/h8300/platform/h8300h/aki3068net/crt0_ram.S
deleted file mode 100644
index b2ad0f2d0417..000000000000
--- a/arch/h8300/platform/h8300h/aki3068net/crt0_ram.S
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- *  linux/arch/h8300/platform/h8300h/aki3068net/crt0_ram.S
- *
- *  Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- *  Platform depend startup
- *  Target Archtecture:	AE-3068 (aka. aki3068net)
- *  Memory Layout     :	RAM
- */
-
-#define ASSEMBLY
-
-#include <asm/linkage.h>
-	
-#if !defined(CONFIG_BLKDEV_RESERVE)
-#if defined(CONFIG_GDB_DEBUG)
-#define RAMEND (__ramend - 0xc000)
-#else
-#define RAMEND __ramend
-#endif
-#else
-#define RAMEND CONFIG_BLKDEV_RESERVE_ADDRESS
-#endif
-	
-	.global __start
-	.global _command_line
-	.global __platform_gpio_table
-	.global __target_name
-	
-	.h8300h
-
-	.section .text
-	.file	"crt0_ram.S"
-
-	/* CPU Reset entry */
-__start:
-	mov.l	#RAMEND,sp
-	ldc	#0x80,ccr
-
-	/* Peripheral Setup */
-	
-#if defined(CONFIG_MTD_UCLINUX)
-	/* move romfs image */
-	jsr	@__move_romfs	
-#endif
-	
-	/* .bss clear */
-	mov.l	#__sbss,er5
-	mov.l	#__ebss,er4
-	sub.l	er5,er4
-	shlr	er4
-	shlr	er4
-	sub.l	er0,er0
-1:	
-	mov.l	er0,@er5
-	adds	#4,er5
-	dec.l	#1,er4
-	bne	1b
-
-	/* copy kernel commandline */
-	mov.l	#COMMAND_START,er5
-	mov.l	#_command_line,er6
-	mov.w	#512,r4
-	eepmov.w
-
-	/* uClinux kernel start */
-	ldc	#0x90,ccr	/* running kernel */
-	mov.l	#_init_thread_union,sp
-	add.l	#0x2000,sp
-	jsr	@_start_kernel
-_exit:
-
-	jmp	_exit
-
-	rts
-
-	/* I/O port assign information */
-__platform_gpio_table:	
-	mov.l	#gpio_table,er0
-	rts
-
-gpio_table:
-	;; P1DDR
-	.byte	0xff,0xff
-	;; P2DDR
-	.byte	0xff,0xff
-	;; P3DDR
-	.byte	0xff,0x00
-	;; P4DDR
-	.byte	0x00,0x00
-	;; P5DDR
-	.byte	0x01,0x01
-	;; P6DDR
-	.byte	0x00,0x00
-	;; dummy
-	.byte	0x00,0x00
-	;; P8DDR
-	.byte	0x0c,0x0c
-	;; P9DDR
-	.byte	0x00,0x00
-	;; PADDR
-	.byte	0x00,0x00
-	;; PBDDR
-	.byte	0x30,0x30
-
-__target_name:	
-	.asciz	"AE-3068"
-	
-	.section .bootvec,"ax"
-	jmp	@__start
diff --git a/arch/h8300/platform/h8300h/generic/Makefile b/arch/h8300/platform/h8300h/generic/Makefile
deleted file mode 100644
index 2b12a170209e..000000000000
--- a/arch/h8300/platform/h8300h/generic/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Makefile for the linux kernel.
-#
-
-extra-y :=  crt0_$(MODEL).o
diff --git a/arch/h8300/platform/h8300h/generic/crt0_ram.S b/arch/h8300/platform/h8300h/generic/crt0_ram.S
deleted file mode 100644
index 5ab7d9c12910..000000000000
--- a/arch/h8300/platform/h8300h/generic/crt0_ram.S
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- *  linux/arch/h8300/platform/h8300h/generic/crt0_ram.S
- *
- *  Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- *  Platform depend startup
- *  Target Archtecture:	AE-3068 (aka. aki3068net)
- *  Memory Layout     :	RAM
- */
-
-#define ASSEMBLY
-
-#include <asm/linkage.h>
-	
-#if !defined(CONFIG_BLKDEV_RESERVE)
-#if defined(CONFIG_GDB_DEBUG)
-#define RAMEND (__ramend - 0xc000)
-#else
-#define RAMEND __ramend
-#endif
-#else
-#define RAMEND CONFIG_BLKDEV_RESERVE_ADDRESS
-#endif
-	
-	.global __start
-	.global _command_line
-	.global __platform_gpio_table
-	.global __target_name
-	
-	.h8300h
-
-	.section .text
-	.file	"crt0_ram.S"
-
-	/* CPU Reset entry */
-__start:
-	mov.l	#RAMEND,sp
-	ldc	#0x80,ccr
-
-	/* Peripheral Setup */
-	
-#if defined(CONFIG_BLK_DEV_BLKMEM)
-	/* move romfs image */
-	jsr	@__move_romfs	
-#endif
-	
-	/* .bss clear */
-	mov.l	#__sbss,er5
-	mov.l	#__ebss,er4
-	sub.l	er5,er4
-	shlr	er4
-	shlr	er4
-	sub.l	er0,er0
-1:	
-	mov.l	er0,@er5
-	adds	#4,er5
-	dec.l	#1,er4
-	bne	1b
-
-	/* copy kernel commandline */
-	mov.l	#COMMAND_START,er5
-	mov.l	#_command_line,er6
-	mov.w	#512,r4
-	eepmov.w
-
-	/* uClinux kernel start */
-	ldc	#0x90,ccr	/* running kernel */
-	mov.l	#_init_thread_union,sp
-	add.l	#0x2000,sp
-	jsr	@_start_kernel
-_exit:
-
-	jmp	_exit
-
-	rts
-
-	/* I/O port assign information */
-__platform_gpio_table:	
-	mov.l	#gpio_table,er0
-	rts
-
-gpio_table:
-	;; P1DDR
-	.byte	0x00,0x00
-	;; P2DDR
-	.byte	0x00,0x00
-	;; P3DDR
-	.byte	0x00,0x00
-	;; P4DDR
-	.byte	0x00,0x00
-	;; P5DDR
-	.byte	0x00,0x00
-	;; P6DDR
-	.byte	0x00,0x00
-	;; dummy
-	.byte	0x00,0x00
-	;; P8DDR
-	.byte	0x00,0x00
-	;; P9DDR
-	.byte	0x00,0x00
-	;; PADDR
-	.byte	0x00,0x00
-	;; PBDDR
-	.byte	0x00,0x00
-
-__target_name:	
-	.asciz	"generic"
diff --git a/arch/h8300/platform/h8300h/generic/crt0_rom.S b/arch/h8300/platform/h8300h/generic/crt0_rom.S
deleted file mode 100644
index dda1dfa15a5e..000000000000
--- a/arch/h8300/platform/h8300h/generic/crt0_rom.S
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- *  linux/arch/h8300/platform/h8300h/generic/crt0_rom.S
- *
- *  Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- *  Platform depend startup
- *  Target Archtecture:	generic
- *  Memory Layout     :	ROM
- */
-
-#define ASSEMBLY
-
-#include <asm/linkage.h>
-	
-	.global __start
-	.global __command_line
-	.global __platform_gpio_table
-	.global __target_name
-	
-	.h8300h
-	.section .text
-	.file	"crt0_rom.S"
-
-	/* CPU Reset entry */
-__start:
-	mov.l	#__ramend,sp
-	ldc	#0x80,ccr
-
-	/* Peripheral Setup */
-	
-	/* .bss clear */
-	mov.l	#__sbss,er5
-	mov.l	#__ebss,er4
-	sub.l	er5,er4
-	shlr	er4
-	shlr	er4
-	sub.l	er0,er0
-1:	
-	mov.l	er0,@er5
-	adds	#4,er5
-	dec.l	#1,er4
-	bne	1b
-
-	/* copy .data */
-#if !defined(CONFIG_H8300H_SIM)
-	/* copy .data */
-	mov.l	#__begin_data,er5
-	mov.l	#__sdata,er6
-	mov.l	#__edata,er4
-	sub.l	er6,er4
-	shlr.l	er4
-	shlr.l	er4
-1:	
-	mov.l	@er5+,er0
-	mov.l	er0,@er6
-	adds	#4,er6
-	dec.l	#1,er4
-	bne	1b	
-#endif
-
-	/* copy kernel commandline */
-	mov.l	#COMMAND_START,er5
-	mov.l	#__command_line,er6
-	mov.w	#512,r4
-	eepmov.w
-
-	/* linux kernel start */
-	ldc	#0x90,ccr	/* running kernel */
-	mov.l	#_init_thread_union,sp
-	add.l	#0x2000,sp
-	jsr	@_start_kernel
-_exit:
-
-	jmp	_exit
-
-	rts
-
-	/* I/O port assign information */
-__platform_gpio_table:	
-	mov.l	#gpio_table,er0
-	rts
-
-gpio_table:
-	;; P1DDR
-	.byte	0x00,0x00
-	;; P2DDR
-	.byte	0x00,0x00
-	;; P3DDR
-	.byte	0x00,0x00
-	;; P4DDR
-	.byte	0x00,0x00
-	;; P5DDR
-	.byte	0x00,0x00
-	;; P6DDR
-	.byte	0x00,0x00
-	;; dummy
-	.byte	0x00,0x00
-	;; P8DDR
-	.byte	0x00,0x00
-	;; P9DDR
-	.byte	0x00,0x00
-	;; PADDR
-	.byte	0x00,0x00
-	;; PBDDR
-	.byte	0x00,0x00
-
-	.section .rodata
-__target_name:	
-	.asciz	"generic"
-	
-	.section .bss
-__command_line:	
-	.space	512
-
-	/* interrupt vector */
-	.section .vectors,"ax"
-	.long	__start
-vector	=	1
-	.rept	64-1
-	.long	_interrupt_redirect_table+vector*4
-vector	=	vector + 1
-	.endr
diff --git a/arch/h8300/platform/h8300h/h8max/Makefile b/arch/h8300/platform/h8300h/h8max/Makefile
deleted file mode 100644
index b7ff78050b7f..000000000000
--- a/arch/h8300/platform/h8300h/h8max/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Makefile for the linux kernel.
-#
-
-extra-y := crt0_ram.o
diff --git a/arch/h8300/platform/h8300h/h8max/crt0_ram.S b/arch/h8300/platform/h8300h/h8max/crt0_ram.S
deleted file mode 100644
index 6a0d4e2d9ec6..000000000000
--- a/arch/h8300/platform/h8300h/h8max/crt0_ram.S
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- *  linux/arch/h8300/platform/h8300h/h8max/crt0_ram.S
- *
- *  Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- *  Platform depend startup
- *  Target Archtecture:	H8MAX
- *  Memory Layout     :	RAM
- */
-
-#define ASSEMBLY
-
-#include <asm/linkage.h>
-	
-#if !defined(CONFIG_BLKDEV_RESERVE)
-#if defined(CONFIG_GDB_DEBUG)
-#define RAMEND (__ramend - 0xc000)
-#else
-#define RAMEND __ramend
-#endif
-#else
-#define RAMEND CONFIG_BLKDEV_RESERVE_ADDRESS
-#endif
-	
-	.global __start
-	.global _command_line
-	.global __platform_gpio_table
-	.global __target_name
-	
-	.h8300h
-
-	.section .text
-	.file	"crt0_ram.S"
-
-	/* CPU Reset entry */
-__start:
-	mov.l	#RAMEND,sp
-	ldc	#0x80,ccr
-
-	/* Peripheral Setup */
-	
-#if defined(CONFIG_MTD_UCLINUX)
-	/* move romfs image */
-	jsr	@__move_romfs	
-#endif
-	
-	/* .bss clear */
-	mov.l	#__sbss,er5
-	mov.l	#__ebss,er4
-	sub.l	er5,er4
-	shlr	er4
-	shlr	er4
-	sub.l	er0,er0
-1:	
-	mov.l	er0,@er5
-	adds	#4,er5
-	dec.l	#1,er4
-	bne	1b
-
-	/* copy kernel commandline */
-	mov.l	#COMMAND_START,er5
-	mov.l	#_command_line,er6
-	mov.w	#512,r4
-	eepmov.w
-
-	/* uClinux kernel start */
-	ldc	#0x90,ccr	/* running kernel */
-	mov.l	#_init_thread_union,sp
-	add.l	#0x2000,sp
-	jsr	@_start_kernel
-_exit:
-
-	jmp	_exit
-
-	rts
-
-	/* I/O port assign information */
-__platform_gpio_table:	
-	mov.l	#gpio_table,er0
-	rts
-
-gpio_table:
-	;; P1DDR
-	.byte	0xff,0xff
-	;; P2DDR
-	.byte	0xff,0xff
-	;; P3DDR
-	.byte	0x00,0x00
-	;; P4DDR
-	.byte	0x00,0x00
-	;; P5DDR
-	.byte	0x01,0x01
-	;; P6DDR
-	.byte	0xf6,0xf6
-	;; dummy
-	.byte	0x00,0x00
-	;; P8DDR
-	.byte	0xee,0xee
-	;; P9DDR
-	.byte	0x00,0x00
-	;; PADDR
-	.byte	0x00,0x00
-	;; PBDDR
-	.byte	0x30,0x30
-
-__target_name:	
-	.asciz	"H8MAX"
-	
-	.section .bootvec,"ax"
-	jmp	@__start
diff --git a/arch/h8300/platform/h8300h/irq.c b/arch/h8300/platform/h8300h/irq.c
deleted file mode 100644
index 0a50353e09d5..000000000000
--- a/arch/h8300/platform/h8300h/irq.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * Interrupt handling H8/300H depend.
- * Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- */
-
-#include <linux/init.h>
-#include <linux/errno.h>
-
-#include <asm/ptrace.h>
-#include <asm/traps.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-#include <asm/gpio-internal.h>
-#include <asm/regs306x.h>
-
-const int __initconst h8300_saved_vectors[] = {
-#if defined(CONFIG_GDB_DEBUG)
-	TRAP3_VEC,	/* TRAPA #3 is GDB breakpoint */
-#endif
-	-1,
-};
-
-const h8300_vector __initconst h8300_trap_table[] = {
-	0, 0, 0, 0, 0, 0, 0, 0,
-	system_call,
-	0,
-	0,
-	trace_break,
-};
-
-int h8300_enable_irq_pin(unsigned int irq)
-{
-	int bitmask;
-	if (irq < EXT_IRQ0 || irq > EXT_IRQ5)
-		return 0;
-
-	/* initialize IRQ pin */
-	bitmask = 1 << (irq - EXT_IRQ0);
-	switch(irq) {
-	case EXT_IRQ0:
-	case EXT_IRQ1:
-	case EXT_IRQ2:
-	case EXT_IRQ3:
-		if (H8300_GPIO_RESERVE(H8300_GPIO_P8, bitmask) == 0)
-			return -EBUSY;
-		H8300_GPIO_DDR(H8300_GPIO_P8, bitmask, H8300_GPIO_INPUT);
-		break;
-	case EXT_IRQ4:
-	case EXT_IRQ5:
-		if (H8300_GPIO_RESERVE(H8300_GPIO_P9, bitmask) == 0)
-			return -EBUSY;
-		H8300_GPIO_DDR(H8300_GPIO_P9, bitmask, H8300_GPIO_INPUT);
-		break;
-	}
-
-	return 0;
-}
-
-void h8300_disable_irq_pin(unsigned int irq)
-{
-	int bitmask;
-	if (irq < EXT_IRQ0 || irq > EXT_IRQ5)
-		return;
-
-	/* disable interrupt & release IRQ pin */
-	bitmask = 1 << (irq - EXT_IRQ0);
-	switch(irq) {
-	case EXT_IRQ0:
-	case EXT_IRQ1:
-	case EXT_IRQ2:
-	case EXT_IRQ3:
-		*(volatile unsigned char *)IER &= ~bitmask;
-		H8300_GPIO_FREE(H8300_GPIO_P8, bitmask);
-		break ;
-	case EXT_IRQ4:
-	case EXT_IRQ5:
-		*(volatile unsigned char *)IER &= ~bitmask;
-		H8300_GPIO_FREE(H8300_GPIO_P9, bitmask);
-		break;
-	}
-}
diff --git a/arch/h8300/platform/h8300h/ptrace_h8300h.c b/arch/h8300/platform/h8300h/ptrace_h8300h.c
deleted file mode 100644
index 4f1ed0279633..000000000000
--- a/arch/h8300/platform/h8300h/ptrace_h8300h.c
+++ /dev/null
@@ -1,284 +0,0 @@
-/*
- *  linux/arch/h8300/platform/h8300h/ptrace_h8300h.c
- *    ptrace cpu depend helper functions
- *
- *  Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License.  See the file COPYING in the main directory of
- * this archive for more details.
- */
-
-#include <linux/linkage.h>
-#include <linux/sched.h>
-#include <asm/ptrace.h>
-
-#define CCR_MASK 0x6f    /* mode/imask not set */
-#define BREAKINST 0x5730 /* trapa #3 */
-
-/* Mapping from PT_xxx to the stack offset at which the register is
-   saved.  Notice that usp has no stack-slot and needs to be treated
-   specially (see get_reg/put_reg below). */
-static const int h8300_register_offset[] = {
-	PT_REG(er1), PT_REG(er2), PT_REG(er3), PT_REG(er4),
-	PT_REG(er5), PT_REG(er6), PT_REG(er0), PT_REG(orig_er0),
-	PT_REG(ccr), PT_REG(pc)
-};
-
-/* read register */
-long h8300_get_reg(struct task_struct *task, int regno)
-{
-	switch (regno) {
-	case PT_USP:
-		return task->thread.usp + sizeof(long)*2;
-	case PT_CCR:
-	    return *(unsigned short *)(task->thread.esp0 + h8300_register_offset[regno]);
-	default:
-	    return *(unsigned long *)(task->thread.esp0 + h8300_register_offset[regno]);
-	}
-}
-
-/* write register */
-int h8300_put_reg(struct task_struct *task, int regno, unsigned long data)
-{
-	unsigned short oldccr;
-	switch (regno) {
-	case PT_USP:
-		task->thread.usp = data - sizeof(long)*2;
-	case PT_CCR:
-		oldccr = *(unsigned short *)(task->thread.esp0 + h8300_register_offset[regno]);
-		oldccr &= ~CCR_MASK;
-		data &= CCR_MASK;
-		data |= oldccr;
-		*(unsigned short *)(task->thread.esp0 + h8300_register_offset[regno]) = data;
-		break;
-	default:
-		*(unsigned long *)(task->thread.esp0 + h8300_register_offset[regno]) = data;
-		break;
-	}
-	return 0;
-}
-
-/* disable singlestep */
-void user_disable_single_step(struct task_struct *child)
-{
-	if((long)child->thread.breakinfo.addr != -1L) {
-		*child->thread.breakinfo.addr = child->thread.breakinfo.inst;
-		child->thread.breakinfo.addr = (unsigned short *)-1L;
-	}
-}
-
-/* calculate next pc */
-enum jump_type {none,    /* normal instruction */
-		jabs,    /* absolute address jump */
-		ind,     /* indirect address jump */
-		ret,     /* return to subrutine */
-		reg,     /* register indexed jump */
-		relb,    /* pc relative jump (byte offset) */
-		relw,    /* pc relative jump (word offset) */
-               };
-
-/* opcode decode table define
-   ptn: opcode pattern
-   msk: opcode bitmask
-   len: instruction length (<0 next table index)
-   jmp: jump operation mode */
-struct optable {
-	unsigned char bitpattern;
-	unsigned char bitmask;
-	signed char length;
-	signed char type;
-} __attribute__((aligned(1),packed));
-
-#define OPTABLE(ptn,msk,len,jmp)   \
-        {                          \
-		.bitpattern = ptn, \
-		.bitmask    = msk, \
-		.length	    = len, \
-		.type       = jmp, \
-	}
-
-static const struct optable optable_0[] = {
-	OPTABLE(0x00,0xff, 1,none), /* 0x00 */
-	OPTABLE(0x01,0xff,-1,none), /* 0x01 */
-	OPTABLE(0x02,0xfe, 1,none), /* 0x02-0x03 */
-	OPTABLE(0x04,0xee, 1,none), /* 0x04-0x05/0x14-0x15 */
-	OPTABLE(0x06,0xfe, 1,none), /* 0x06-0x07 */
-	OPTABLE(0x08,0xea, 1,none), /* 0x08-0x09/0x0c-0x0d/0x18-0x19/0x1c-0x1d */
-	OPTABLE(0x0a,0xee, 1,none), /* 0x0a-0x0b/0x1a-0x1b */
-	OPTABLE(0x0e,0xee, 1,none), /* 0x0e-0x0f/0x1e-0x1f */
-	OPTABLE(0x10,0xfc, 1,none), /* 0x10-0x13 */
-	OPTABLE(0x16,0xfe, 1,none), /* 0x16-0x17 */
-	OPTABLE(0x20,0xe0, 1,none), /* 0x20-0x3f */
-	OPTABLE(0x40,0xf0, 1,relb), /* 0x40-0x4f */
-	OPTABLE(0x50,0xfc, 1,none), /* 0x50-0x53 */
-	OPTABLE(0x54,0xfd, 1,ret ), /* 0x54/0x56 */
-	OPTABLE(0x55,0xff, 1,relb), /* 0x55 */
-	OPTABLE(0x57,0xff, 1,none), /* 0x57 */
-	OPTABLE(0x58,0xfb, 2,relw), /* 0x58/0x5c */
-	OPTABLE(0x59,0xfb, 1,reg ), /* 0x59/0x5b */
-	OPTABLE(0x5a,0xfb, 2,jabs), /* 0x5a/0x5e */
-	OPTABLE(0x5b,0xfb, 2,ind ), /* 0x5b/0x5f */
-	OPTABLE(0x60,0xe8, 1,none), /* 0x60-0x67/0x70-0x77 */
-	OPTABLE(0x68,0xfa, 1,none), /* 0x68-0x69/0x6c-0x6d */
-	OPTABLE(0x6a,0xfe,-2,none), /* 0x6a-0x6b */
-	OPTABLE(0x6e,0xfe, 2,none), /* 0x6e-0x6f */
-	OPTABLE(0x78,0xff, 4,none), /* 0x78 */
-	OPTABLE(0x79,0xff, 2,none), /* 0x79 */
-	OPTABLE(0x7a,0xff, 3,none), /* 0x7a */
-	OPTABLE(0x7b,0xff, 2,none), /* 0x7b */
-	OPTABLE(0x7c,0xfc, 2,none), /* 0x7c-0x7f */
-	OPTABLE(0x80,0x80, 1,none), /* 0x80-0xff */
-};
-
-static const struct optable optable_1[] = {
-	OPTABLE(0x00,0xff,-3,none), /* 0x0100 */
-	OPTABLE(0x40,0xf0,-3,none), /* 0x0140-0x14f */
-	OPTABLE(0x80,0xf0, 1,none), /* 0x0180-0x018f */
-	OPTABLE(0xc0,0xc0, 2,none), /* 0x01c0-0x01ff */
-};
-
-static const struct optable optable_2[] = {
-	OPTABLE(0x00,0x20, 2,none), /* 0x6a0?/0x6a8?/0x6b0?/0x6b8? */
-	OPTABLE(0x20,0x20, 3,none), /* 0x6a2?/0x6aa?/0x6b2?/0x6ba? */
-};
-
-static const struct optable optable_3[] = {
-	OPTABLE(0x69,0xfb, 2,none), /* 0x010069/0x01006d/014069/0x01406d */
-	OPTABLE(0x6b,0xff,-4,none), /* 0x01006b/0x01406b */
-	OPTABLE(0x6f,0xff, 3,none), /* 0x01006f/0x01406f */
-	OPTABLE(0x78,0xff, 5,none), /* 0x010078/0x014078 */
-};
-
-static const struct optable optable_4[] = {
-	OPTABLE(0x00,0x78, 3,none), /* 0x0100690?/0x01006d0?/0140690/0x01406d0?/0x0100698?/0x01006d8?/0140698?/0x01406d8? */
-	OPTABLE(0x20,0x78, 4,none), /* 0x0100692?/0x01006d2?/0140692/0x01406d2?/0x010069a?/0x01006da?/014069a?/0x01406da? */
-};
-
-static const struct optables_list {
-	const struct optable *ptr;
-	int size;
-} optables[] = {
-#define OPTABLES(no)                                                   \
-        {                                                              \
-		.ptr  = optable_##no,                                  \
-		.size = sizeof(optable_##no) / sizeof(struct optable), \
-	}
-	OPTABLES(0),
-	OPTABLES(1),
-	OPTABLES(2),
-	OPTABLES(3),
-	OPTABLES(4),
-
-};
-
-const unsigned char condmask[] = {
-	0x00,0x40,0x01,0x04,0x02,0x08,0x10,0x20
-};
-
-static int isbranch(struct task_struct *task,int reson)
-{
-	unsigned char cond = h8300_get_reg(task, PT_CCR);
-	/* encode complex conditions */
-	/* B4: N^V
-	   B5: Z|(N^V)
-	   B6: C|Z */
-	__asm__("bld #3,%w0\n\t"
-		"bxor #1,%w0\n\t"
-		"bst #4,%w0\n\t"
-		"bor #2,%w0\n\t"
-		"bst #5,%w0\n\t"
-		"bld #2,%w0\n\t"
-		"bor #0,%w0\n\t"
-		"bst #6,%w0\n\t"
-		:"=&r"(cond)::"cc");
-	cond &= condmask[reson >> 1];
-	if (!(reson & 1))
-		return cond == 0;
-	else
-		return cond != 0;
-}
-
-static unsigned short *getnextpc(struct task_struct *child, unsigned short *pc)
-{
-	const struct optable *op;
-	unsigned char *fetch_p;
-	unsigned char inst;
-	unsigned long addr;
-	unsigned long *sp;
-	int op_len,regno;
-	op = optables[0].ptr;
-	op_len = optables[0].size;
-	fetch_p = (unsigned char *)pc;
-	inst = *fetch_p++;
-	do {
-		if ((inst & op->bitmask) == op->bitpattern) {
-			if (op->length < 0) {
-				op = optables[-op->length].ptr;
-				op_len = optables[-op->length].size + 1;
-				inst = *fetch_p++;
-			} else {
-				switch (op->type) {
-				case none:
-					return pc + op->length;
-				case jabs:
-					addr = *(unsigned long *)pc;
-					return (unsigned short *)(addr & 0x00ffffff);
-				case ind:
-					addr = *pc & 0xff;
-					return (unsigned short *)(*(unsigned long *)addr);
-				case ret:
-					sp = (unsigned long *)h8300_get_reg(child, PT_USP);
-					/* user stack frames
-					   |   er0  | temporary saved
-					   +--------+
-					   |   exp  | exception stack frames
-					   +--------+
-					   | ret pc | userspace return address
-					*/
-					return (unsigned short *)(*(sp+2) & 0x00ffffff);
-				case reg:
-					regno = (*pc >> 4) & 0x07;
-					if (regno == 0)
-						addr = h8300_get_reg(child, PT_ER0);
-					else
-						addr = h8300_get_reg(child, regno-1+PT_ER1);
-					return (unsigned short *)addr;
-				case relb:
-					if (inst == 0x55 || isbranch(child,inst & 0x0f))
-						pc = (unsigned short *)((unsigned long)pc +
-								       ((signed char)(*fetch_p)));
-					return pc+1; /* skip myself */
-				case relw:
-					if (inst == 0x5c || isbranch(child,(*fetch_p & 0xf0) >> 4))
-						pc = (unsigned short *)((unsigned long)pc +
-								       ((signed short)(*(pc+1))));
-					return pc+2; /* skip myself */
-				}
-			}
-		} else
-			op++;
-	} while(--op_len > 0);
-	return NULL;
-}
-
-/* Set breakpoint(s) to simulate a single step from the current PC.  */
-
-void user_enable_single_step(struct task_struct *child)
-{
-	unsigned short *nextpc;
-	nextpc = getnextpc(child,(unsigned short *)h8300_get_reg(child, PT_PC));
-	child->thread.breakinfo.addr = nextpc;
-	child->thread.breakinfo.inst = *nextpc;
-	*nextpc = BREAKINST;
-}
-
-asmlinkage void trace_trap(unsigned long bp)
-{
-	if ((unsigned long)current->thread.breakinfo.addr == bp) {
-		user_disable_single_step(current);
-		force_sig(SIGTRAP,current);
-	} else
-	        force_sig(SIGILL,current);
-}
-
diff --git a/arch/h8300/platform/h8s/Makefile b/arch/h8300/platform/h8s/Makefile
deleted file mode 100644
index bf1241883766..000000000000
--- a/arch/h8300/platform/h8s/Makefile
+++ /dev/null
@@ -1,7 +0,0 @@
-#
-# Makefile for the linux kernel.
-#
-# Reuse any files we can from the H8S
-#
-
-obj-y := ints_h8s.o ptrace_h8s.o
diff --git a/arch/h8300/platform/h8s/edosk2674/Makefile b/arch/h8300/platform/h8s/edosk2674/Makefile
deleted file mode 100644
index 8e349723bb4f..000000000000
--- a/arch/h8300/platform/h8s/edosk2674/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Makefile for the linux kernel.
-#
-
-extra-y := crt0_$(MODEL).o
diff --git a/arch/h8300/platform/h8s/edosk2674/crt0_ram.S b/arch/h8300/platform/h8s/edosk2674/crt0_ram.S
deleted file mode 100644
index 5ed191b37cde..000000000000
--- a/arch/h8300/platform/h8s/edosk2674/crt0_ram.S
+++ /dev/null
@@ -1,130 +0,0 @@
-/*
- *  linux/arch/h8300/platform/h8s/edosk2674/crt0_ram.S
- *
- *  Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- *  Platform depend startup
- *  Target Archtecture:	EDOSK-2674
- *  Memory Layout     :	RAM
- */
-
-#define ASSEMBLY
-
-#include <asm/linkage.h>
-#include <asm/regs267x.h>
-			
-#if !defined(CONFIG_BLKDEV_RESERVE)
-#if defined(CONFIG_GDB_DEBUG)
-#define RAMEND (__ramend - 0xc000)
-#else
-#define RAMEND __ramend
-#endif
-#else
-#define RAMEND CONFIG_BLKDEV_RESERVE_ADDRESS
-#endif
-	
-	.global __start
-	.global __command_line
-	.global __platform_gpio_table
-	.global __target_name
-	
-	.h8300s
-
-	.section .text
-	.file	"crt0_ram.S"
-
-	/* CPU Reset entry */
-__start:
-	mov.l	#RAMEND,sp
-	ldc	#0x80,ccr
-	ldc	#0x00,exr
-
-	/* Peripheral Setup */
-	bclr	#4,@INTCR:8	/* interrupt mode 2 */
-	bset	#5,@INTCR:8
-	bclr	#0,@IER+1:16
-	bset	#1,@ISCRL+1:16	/* IRQ0 Positive Edge */
-	bclr	#0,@ISCRL+1:16
-
-#if defined(CONFIG_MTD_UCLINUX)
-	/* move romfs image */
-	jsr	@__move_romfs	
-#endif
-	
-	/* .bss clear */
-	mov.l	#__sbss,er5
-	mov.l	er5,er6
-	mov.l	#__ebss,er4
-	sub.l	er5,er4
-	shlr	#2,er4
-	sub.l	er0,er0
-1:	
-	mov.l	er0,@er5
-	adds	#4,er5
-	dec.l	#1,er4
-	bne	1b
-
-	/* copy kernel commandline */
-	mov.l	#COMMAND_START,er5
-	mov.l	#_command_line,er6
-	mov.w	#512,r4
-	eepmov.w
-
-	/* uClinux kernel start */
-	ldc	#0x90,ccr	/* running kernel */
-	mov.l	#_init_thread_union,sp
-	add.l	#0x2000,sp
-	jsr	@_start_kernel
-_exit:
-
-	jmp	_exit
-
-	rts
-
-	/* I/O port assign information */
-__platform_gpio_table:	
-	mov.l	#gpio_table,er0
-	rts
-
-gpio_table:
-	;; P1DDR
-	;;      used,ddr
-	.byte	0x00,0x00
-	;; P2DDR
-	.byte	0x00,0x00
-	;; P3DDR
-	.byte	0x3f,0x3a
-	;; dummy
-	.byte	0x00,0x00
-	;; P5DDR
-	.byte	0x00,0x00
-	;; P6DDR
-	.byte	0x00,0x00
-	;; P7DDR
-	.byte	0x00,0x00
-	;; P8DDR
-	.byte	0x00,0x00
-	;; dummy
-	.byte	0x00,0x00
-	;; PADDR
-	.byte	0xff,0xff
-	;; PBDDR
-	.byte	0xff,0x00
-	;; PCDDR
-	.byte	0xff,0x00
-	;; PDDDR
-	.byte	0xff,0x00
-	;; PEDDR
-	.byte	0xff,0x00
-	;; PFDDR
-	.byte	0xff,0xff
-	;; PGDDR
-	.byte	0x0f,0x0f
-	;; PHDDR
-	.byte	0x0f,0x0f
-
-__target_name:	
-	.asciz	"EDOSK-2674"
-	
-	.section .bootvec,"ax"
-	jmp	@__start
diff --git a/arch/h8300/platform/h8s/edosk2674/crt0_rom.S b/arch/h8300/platform/h8s/edosk2674/crt0_rom.S
deleted file mode 100644
index 06d1d7f324ca..000000000000
--- a/arch/h8300/platform/h8s/edosk2674/crt0_rom.S
+++ /dev/null
@@ -1,186 +0,0 @@
-/*
- *  linux/arch/h8300/platform/h8s/edosk2674/crt0_rom.S
- *
- *  Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- *  Platform depend startup
- *  Target Archtecture:	EDOSK-2674
- *  Memory Layout     :	ROM
- */
-
-#define ASSEMBLY
-
-#include <asm/linkage.h>
-#include <asm/regs267x.h>
-		
-	.global __start
-	.global __command_line
-	.global __platform_gpio_table
-	.global __target_name
-	
-	.h8300s
-	.section .text
-	.file	"crt0_rom.S"
-
-	/* CPU Reset entry */
-__start:
-	mov.l	#__ramend,sp
-	ldc	#0x80,ccr
-	ldc	#0,exr
-	
-	/* Peripheral Setup */
-;BSC/GPIO setup
-	mov.l	#init_regs,er0
-	mov.w	#0xffff,e2
-1:
-	mov.w	@er0+,r2
-	beq	2f
-	mov.w	@er0+,r1
-	mov.b	r1l,@er2
-	bra	1b
-
-2:
-;SDRAM setup
-#define SDRAM_SMR 0x400040
-
-	mov.b	#0,r0l
-	mov.b	r0l,@DRACCR:16
-	mov.w	#0x188,r0
-	mov.w	r0,@REFCR:16
-	mov.w	#0x85b4,r0
-	mov.w	r0,@DRAMCR:16
-	mov.b	#0,r1l
-	mov.b	r1l,@SDRAM_SMR
-	mov.w	#0x84b4,r0
-	mov.w	r0,@DRAMCR:16
-;special thanks to Arizona Cooperative Power
-	
-	/* copy .data */
-	mov.l	#__begin_data,er5
-	mov.l	#__sdata,er6
-	mov.l	#__edata,er4
-	sub.l	er6,er4
-	shlr.l	#2,er4
-1:	
-	mov.l	@er5+,er0
-	mov.l	er0,@er6
-	adds	#4,er6
-	dec.l	#1,er4
-	bne	1b	
-
-	/* .bss clear */
-	mov.l	#__sbss,er5
-	mov.l	#__ebss,er4
-	sub.l	er5,er4
-	shlr.l	#2,er4		
-	sub.l	er0,er0
-1:
-	mov.l	er0,@er5
-	adds	#4,er5
-	dec.l	#1,er4
-	bne	1b
-
-	/* copy kernel commandline */
-	mov.l	#COMMAND_START,er5
-	mov.l	#__command_line,er6
-	mov.w	#512,r4
-	eepmov.w
-
-	/* linux kernel start */
-	ldc	#0x90,ccr	/* running kernel */
-	mov.l	#_init_thread_union,sp
-	add.l	#0x2000,sp
-	jsr	@_start_kernel
-_exit:
-
-	jmp	_exit
-
-	rts
-
-	/* I/O port assign information */
-__platform_gpio_table:	
-	mov.l	#gpio_table,er0
-	rts
-
-#define INIT_REGS_DATA(REGS,DATA) \
-	.word	((REGS) & 0xffff),DATA
-
-init_regs:
-INIT_REGS_DATA(ASTCR,0xff)
-INIT_REGS_DATA(RDNCR,0x00)
-INIT_REGS_DATA(ABWCR,0x80)
-INIT_REGS_DATA(WTCRAH,0x27)
-INIT_REGS_DATA(WTCRAL,0x77)
-INIT_REGS_DATA(WTCRBH,0x71)
-INIT_REGS_DATA(WTCRBL,0x22)
-INIT_REGS_DATA(CSACRH,0x80)
-INIT_REGS_DATA(CSACRL,0x80)
-INIT_REGS_DATA(BROMCRH,0xa0)
-INIT_REGS_DATA(BROMCRL,0xa0)
-INIT_REGS_DATA(P3DDR,0x3a)
-INIT_REGS_DATA(P3ODR,0x06)
-INIT_REGS_DATA(PADDR,0xff)
-INIT_REGS_DATA(PFDDR,0xfe)
-INIT_REGS_DATA(PGDDR,0x0f)
-INIT_REGS_DATA(PHDDR,0x0f)
-INIT_REGS_DATA(PFCR0,0xff)
-INIT_REGS_DATA(PFCR2,0x0d)
-INIT_REGS_DATA(ITSR, 0x00)
-INIT_REGS_DATA(ITSR+1,0x3f)
-INIT_REGS_DATA(INTCR,0x20)
-		
-	.word	0
-
-gpio_table:
-	;; P1DDR
-	.byte	0x00,0x00
-	;; P2DDR
-	.byte	0x00,0x00
-	;; P3DDR
-	.byte	0x00,0x00
-	;; dummy
-	.byte	0x00,0x00
-	;; P5DDR
-	.byte	0x00,0x00
-	;; P6DDR
-	.byte	0x00,0x00
-	;; P7DDR
-	.byte	0x00,0x00
-	;; P8DDR
-	.byte	0x00,0x00
-	;; dummy
-	.byte	0x00,0x00
-	;; PADDR
-	.byte	0x00,0x00
-	;; PBDDR
-	.byte	0x00,0x00
-	;; PCDDR
-	.byte	0x00,0x00
-	;; PDDDR
-	.byte	0x00,0x00
-	;; PEDDR
-	.byte	0x00,0x00
-	;; PFDDR
-	.byte	0x00,0x00
-	;; PGDDR
-	.byte	0x00,0x00
-	;; PHDDR
-	.byte	0x00,0x00
-
-	.section .rodata
-__target_name:	
-	.asciz	"EDOSK-2674"
-	
-	.section .bss
-__command_line:	
-	.space	512
-
-	/* interrupt vector */
-	.section .vectors,"ax"
-	.long	__start
-	.long	__start
-vector	=	2
-	.rept	126
-	.long	_interrupt_redirect_table+vector*4
-vector	=	vector + 1
-	.endr
diff --git a/arch/h8300/platform/h8s/generic/Makefile b/arch/h8300/platform/h8s/generic/Makefile
deleted file mode 100644
index 44b4685c664c..000000000000
--- a/arch/h8300/platform/h8s/generic/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Makefile for the linux kernel.
-#
-
-extra-y =  crt0_$(MODEL).o
diff --git a/arch/h8300/platform/h8s/generic/crt0_ram.S b/arch/h8300/platform/h8s/generic/crt0_ram.S
deleted file mode 100644
index 7018915de74f..000000000000
--- a/arch/h8300/platform/h8s/generic/crt0_ram.S
+++ /dev/null
@@ -1,127 +0,0 @@
-/*
- *  linux/arch/h8300/platform/h8s/edosk2674/crt0_ram.S
- *
- *  Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- *  Platform depend startup
- *  Target Archtecture:	generic
- *  Memory Layout     :	RAM
- */
-
-#define ASSEMBLY
-
-#include <asm/linkage.h>
-#include <asm/regs267x.h>
-			
-#if !defined(CONFIG_BLKDEV_RESERVE)
-#if defined(CONFIG_GDB_DEBUG)
-#define RAMEND (__ramend - 0xc000)
-#else
-#define RAMEND __ramend
-#endif
-#else
-#define RAMEND CONFIG_BLKDEV_RESERVE_ADDRESS
-#endif
-	
-	.global __start
-	.global __command_line
-	.global __platform_gpio_table
-	.global __target_name
-	
-	.h8300s
-
-	.section .text
-	.file	"crt0_ram.S"
-
-	/* CPU Reset entry */
-__start:
-	mov.l	#RAMEND,sp
-	ldc	#0x80,ccr
-	ldc	#0x00,exr
-
-	/* Peripheral Setup */
-	bclr	#4,@INTCR:8	/* interrupt mode 2 */
-	bset	#5,@INTCR:8
-
-#if defined(CONFIG_MTD_UCLINUX)
-	/* move romfs image */
-	jsr	@__move_romfs	
-#endif
-	
-	/* .bss clear */
-	mov.l	#__sbss,er5
-	mov.l	er5,er6
-	mov.l	#__ebss,er4
-	sub.l	er5,er4
-	shlr	#2,er4
-	sub.l	er0,er0
-1:	
-	mov.l	er0,@er5
-	adds	#4,er5
-	dec.l	#1,er4
-	bne	1b
-
-	/* copy kernel commandline */
-	mov.l	#COMMAND_START,er5
-	mov.l	#_command_line,er6
-	mov.w	#512,r4
-	eepmov.w
-
-	/* uClinux kernel start */
-	ldc	#0x90,ccr	/* running kernel */
-	mov.l	#_init_thread_union,sp
-	add.l	#0x2000,sp
-	jsr	@_start_kernel
-_exit:
-
-	jmp	_exit
-
-	rts
-
-	/* I/O port assign information */
-__platform_gpio_table:	
-	mov.l	#gpio_table,er0
-	rts
-
-gpio_table:
-	;; P1DDR
-	;;      used,ddr
-	.byte	0x00,0x00
-	;; P2DDR
-	.byte	0x00,0x00
-	;; P3DDR
-	.byte	0x00,0x00
-	;; dummy
-	.byte	0x00,0x00
-	;; P5DDR
-	.byte	0x00,0x00
-	;; P6DDR
-	.byte	0x00,0x00
-	;; P7DDR
-	.byte	0x00,0x00
-	;; P8DDR
-	.byte	0x00,0x00
-	;; dummy
-	.byte	0x00,0x00
-	;; PADDR
-	.byte	0x00,0x00
-	;; PBDDR
-	.byte	0x00,0x00
-	;; PCDDR
-	.byte	0x00,0x00
-	;; PDDDR
-	.byte	0x00,0x00
-	;; PEDDR
-	.byte	0x00,0x00
-	;; PFDDR
-	.byte	0x00,0x00
-	;; PGDDR
-	.byte	0x00,0x00
-	;; PHDDR
-	.byte	0x00,0x00
-
-__target_name:	
-	.asciz	"generic"
-	
-	.section .bootvec,"ax"
-	jmp	@__start
diff --git a/arch/h8300/platform/h8s/generic/crt0_rom.S b/arch/h8300/platform/h8s/generic/crt0_rom.S
deleted file mode 100644
index 623ba7828193..000000000000
--- a/arch/h8300/platform/h8s/generic/crt0_rom.S
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
- *  linux/arch/h8300/platform/h8s/generic/crt0_rom.S
- *
- *  Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- *  Platform depend startup 
- *  Target Archtecture:	generic
- *  Memory Layout     :	ROM
- */
-
-#define ASSEMBLY
-
-#include <asm/linkage.h>
-#include <asm/regs267x.h>
-	
-	.global __start
-	.global __command_line
-	.global __platform_gpio_table
-	.global __target_name
-	
-	.h8300s
-	.section .text
-	.file	"crt0_rom.S"
-
-	/* CPU Reset entry */
-__start:
-	mov.l	#__ramend,sp
-	ldc	#0x80,ccr
-	ldc	#0,exr
-	bclr	#4,@INTCR:8
-	bset	#5,@INTCR:8	/* Interrupt mode 2 */
-	
-	/* Peripheral Setup */
-	
-	/* copy .data */
-#if !defined(CONFIG_H8S_SIM)
-	mov.l	#__begin_data,er5
-	mov.l	#__sdata,er6
-	mov.l	#__edata,er4
-	sub.l	er6,er4
-	shlr.l	#2,er4
-1:	
-	mov.l	@er5+,er0
-	mov.l	er0,@er6
-	adds	#4,er6
-	dec.l	#1,er4
-	bne	1b	
-#endif
-
-	/* .bss clear */
-	mov.l	#__sbss,er5
-	mov.l	#__ebss,er4
-	sub.l	er5,er4
-	shlr.l	#2,er4		
-	sub.l	er0,er0
-1:
-	mov.l	er0,@er5
-	adds	#4,er5
-	dec.l	#1,er4
-	bne	1b
-
-	/* linux kernel start */
-	ldc	#0x90,ccr	/* running kernel */
-	mov.l	#_init_thread_union,sp
-	add.l	#0x2000,sp
-	jsr	@_start_kernel
-_exit:
-
-	jmp	_exit
-
-	rts
-
-	/* I/O port assign information */
-__platform_gpio_table:	
-	mov.l	#gpio_table,er0
-	rts
-
-gpio_table:
-	;; P1DDR
-	.byte	0x00,0x00
-	;; P2DDR
-	.byte	0x00,0x00
-	;; P3DDR
-	.byte	0x00,0x00
-	;; P4DDR
-	.byte	0x00,0x00
-	;; P5DDR
-	.byte	0x00,0x00
-	;; P6DDR
-	.byte	0x00,0x00
-	;; dummy
-	.byte	0x00,0x00
-	;; P8DDR
-	.byte	0x00,0x00
-	;; PADDR
-	.byte	0x00,0x00
-	;; PBDDR
-	.byte	0x00,0x00
-	;; PCDDR
-	.byte	0x00,0x00
-	;; PDDDR
-	.byte	0x00,0x00
-	;; PEDDR
-	.byte	0x00,0x00
-	;; PFDDR
-	.byte	0x00,0x00
-	;; PGDDR
-	.byte	0x00,0x00
-	;; PHDDR
-	.byte	0x00,0x00
-
-	.section .rodata
-__target_name:	
-	.asciz	"generic"
-	
-	.section .bss
-__command_line:	
-	.space	512
-
-	/* interrupt vector */
-	.section .vectors,"ax"
-	.long	__start
-	.long	__start
-vector	=	2
-	.rept	126-1
-	.long	_interrupt_redirect_table+vector*4
-vector	=	vector + 1
-	.endr
diff --git a/arch/h8300/platform/h8s/irq.c b/arch/h8300/platform/h8s/irq.c
deleted file mode 100644
index f3a5511c16b1..000000000000
--- a/arch/h8300/platform/h8s/irq.c
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * linux/arch/h8300/platform/h8s/ints_h8s.c
- * Interrupt handling CPU variants
- *
- * Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- */
-
-#include <linux/init.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-
-#include <asm/ptrace.h>
-#include <asm/traps.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-#include <asm/gpio-internal.h>
-#include <asm/regs267x.h>
-
-/* saved vector list */
-const int __initconst h8300_saved_vectors[] = {
-#if defined(CONFIG_GDB_DEBUG)
-	TRACE_VEC,
-	TRAP3_VEC,
-#endif
-	-1
-};
-
-/* trap entry table */
-const H8300_VECTOR __initconst h8300_trap_table[] = {
-	0,0,0,0,0,
-	trace_break,  /* TRACE */
-	0,0,
-	system_call,  /* TRAPA #0 */
-	0,0,0,0,0,0,0
-};
-
-/* IRQ pin assignment */
-struct irq_pins {
-	unsigned char port_no;
-	unsigned char bit_no;
-} __attribute__((aligned(1),packed));
-/* ISTR = 0 */
-static const struct irq_pins irq_assign_table0[16]={
-        {H8300_GPIO_P5,H8300_GPIO_B0},{H8300_GPIO_P5,H8300_GPIO_B1},
-	{H8300_GPIO_P5,H8300_GPIO_B2},{H8300_GPIO_P5,H8300_GPIO_B3},
-	{H8300_GPIO_P5,H8300_GPIO_B4},{H8300_GPIO_P5,H8300_GPIO_B5},
-	{H8300_GPIO_P5,H8300_GPIO_B6},{H8300_GPIO_P5,H8300_GPIO_B7},
-	{H8300_GPIO_P6,H8300_GPIO_B0},{H8300_GPIO_P6,H8300_GPIO_B1},
-	{H8300_GPIO_P6,H8300_GPIO_B2},{H8300_GPIO_P6,H8300_GPIO_B3},
-	{H8300_GPIO_P6,H8300_GPIO_B4},{H8300_GPIO_P6,H8300_GPIO_B5},
-	{H8300_GPIO_PF,H8300_GPIO_B1},{H8300_GPIO_PF,H8300_GPIO_B2},
-};
-/* ISTR = 1 */
-static const struct irq_pins irq_assign_table1[16]={
-	{H8300_GPIO_P8,H8300_GPIO_B0},{H8300_GPIO_P8,H8300_GPIO_B1},
-	{H8300_GPIO_P8,H8300_GPIO_B2},{H8300_GPIO_P8,H8300_GPIO_B3},
-	{H8300_GPIO_P8,H8300_GPIO_B4},{H8300_GPIO_P8,H8300_GPIO_B5},
-	{H8300_GPIO_PH,H8300_GPIO_B2},{H8300_GPIO_PH,H8300_GPIO_B3},
-	{H8300_GPIO_P2,H8300_GPIO_B0},{H8300_GPIO_P2,H8300_GPIO_B1},
-	{H8300_GPIO_P2,H8300_GPIO_B2},{H8300_GPIO_P2,H8300_GPIO_B3},
-	{H8300_GPIO_P2,H8300_GPIO_B4},{H8300_GPIO_P2,H8300_GPIO_B5},
-	{H8300_GPIO_P2,H8300_GPIO_B6},{H8300_GPIO_P2,H8300_GPIO_B7},
-};
-
-/* IRQ to GPIO pin translation */
-#define IRQ_GPIO_MAP(irqbit,irq,port,bit)			  \
-do {								  \
-	if (*(volatile unsigned short *)ITSR & irqbit) {	  \
-		port = irq_assign_table1[irq - EXT_IRQ0].port_no; \
-		bit  = irq_assign_table1[irq - EXT_IRQ0].bit_no;  \
-	} else {						  \
-		port = irq_assign_table0[irq - EXT_IRQ0].port_no; \
-		bit  = irq_assign_table0[irq - EXT_IRQ0].bit_no;  \
-	}							  \
-} while(0)
-
-int h8300_enable_irq_pin(unsigned int irq)
-{
-	if (irq >= EXT_IRQ0 && irq <= EXT_IRQ15) {
-		unsigned short ptn = 1 << (irq - EXT_IRQ0);
-		unsigned int port_no,bit_no;
-		IRQ_GPIO_MAP(ptn, irq, port_no, bit_no);
-		if (H8300_GPIO_RESERVE(port_no, bit_no) == 0)
-			return -EBUSY;                   /* pin already use */
-		H8300_GPIO_DDR(port_no, bit_no, H8300_GPIO_INPUT);
-		*(volatile unsigned short *)ISR &= ~ptn; /* ISR clear */
-	}
-
-	return 0;
-}
-
-void h8300_disable_irq_pin(unsigned int irq)
-{
-	if (irq >= EXT_IRQ0 && irq <= EXT_IRQ15) {
-		/* disable interrupt & release IRQ pin */
-		unsigned short ptn = 1 << (irq - EXT_IRQ0);
-		unsigned short port_no,bit_no;
-		*(volatile unsigned short *)ISR &= ~ptn;
-		*(volatile unsigned short *)IER &= ~ptn;
-		IRQ_GPIO_MAP(ptn, irq, port_no, bit_no);
-		H8300_GPIO_FREE(port_no, bit_no);
-	}
-}
diff --git a/arch/h8300/platform/h8s/ptrace_h8s.c b/arch/h8300/platform/h8s/ptrace_h8s.c
deleted file mode 100644
index c058ab1a8495..000000000000
--- a/arch/h8300/platform/h8s/ptrace_h8s.c
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- *  linux/arch/h8300/platform/h8s/ptrace_h8s.c
- *    ptrace cpu depend helper functions
- *
- *  Yoshinori Sato <ysato@users.sourceforge.jp>
- *
- * This file is subject to the terms and conditions of the GNU General
- * Public License.  See the file COPYING in the main directory of
- * this archive for more details.
- */
-
-#include <linux/linkage.h>
-#include <linux/sched.h>
-#include <linux/errno.h>
-#include <asm/ptrace.h>
-
-#define CCR_MASK  0x6f
-#define EXR_TRACE 0x80
-
-/* Mapping from PT_xxx to the stack offset at which the register is
-   saved.  Notice that usp has no stack-slot and needs to be treated
-   specially (see get_reg/put_reg below). */
-static const int h8300_register_offset[] = {
-	PT_REG(er1), PT_REG(er2), PT_REG(er3), PT_REG(er4),
-	PT_REG(er5), PT_REG(er6), PT_REG(er0), PT_REG(orig_er0),
-	PT_REG(ccr), PT_REG(pc),  0,           PT_REG(exr)
-};
-
-/* read register */
-long h8300_get_reg(struct task_struct *task, int regno)
-{
-	switch (regno) {
-	case PT_USP:
-		return task->thread.usp + sizeof(long)*2 + 2;
-	case PT_CCR:
-	case PT_EXR:
-	    return *(unsigned short *)(task->thread.esp0 + h8300_register_offset[regno]);
-	default:
-	    return *(unsigned long *)(task->thread.esp0 + h8300_register_offset[regno]);
-	}
-}
-
-/* write register */
-int h8300_put_reg(struct task_struct *task, int regno, unsigned long data)
-{
-	unsigned short oldccr;
-	switch (regno) {
-	case PT_USP:
-		task->thread.usp = data - sizeof(long)*2 - 2;
-	case PT_CCR:
-		oldccr = *(unsigned short *)(task->thread.esp0 + h8300_register_offset[regno]);
-		oldccr &= ~CCR_MASK;
-		data &= CCR_MASK;
-		data |= oldccr;
-		*(unsigned short *)(task->thread.esp0 + h8300_register_offset[regno]) = data;
-		break;
-	case PT_EXR:
-		/* exr modify not support */
-		return -EIO;
-	default:
-		*(unsigned long *)(task->thread.esp0 + h8300_register_offset[regno]) = data;
-		break;
-	}
-	return 0;
-}
-
-/* disable singlestep */
-void user_disable_single_step(struct task_struct *child)
-{
-	*(unsigned short *)(child->thread.esp0 + h8300_register_offset[PT_EXR]) &= ~EXR_TRACE;
-}
-
-/* enable singlestep */
-void user_enable_single_step(struct task_struct *child)
-{
-	*(unsigned short *)(child->thread.esp0 + h8300_register_offset[PT_EXR]) |= EXR_TRACE;
-}
-
-asmlinkage void trace_trap(unsigned long bp)
-{
-	(void)bp;
-	force_sig(SIGTRAP,current);
-}
-
diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h
index d34049712a4d..50fe651da965 100644
--- a/include/linux/serial_sci.h
+++ b/include/linux/serial_sci.h
@@ -5,7 +5,7 @@
 #include <linux/sh_dma.h>
 
 /*
- * Generic header for SuperH (H)SCI(F) (used by sh/sh64/h8300 and related parts)
+ * Generic header for SuperH (H)SCI(F) (used by sh/sh64 and related parts)
  */
 
 #define SCIx_NOT_SUPPORTED	(-1)
diff --git a/tools/testing/ktest/examples/crosstests.conf b/tools/testing/ktest/examples/crosstests.conf
index 46736604c26c..a1203148dfa1 100644
--- a/tools/testing/ktest/examples/crosstests.conf
+++ b/tools/testing/ktest/examples/crosstests.conf
@@ -133,12 +133,6 @@ CROSS = frv-linux
 ARCH = frv
 GCC_VER = 4.5.1
 
-# h8300 - failed make defconfig??
-TEST_START IF ${RUN} == h8300 || ${DO_FAILED}
-CROSS = h8300-elf
-ARCH = h8300
-GCC_VER = 4.5.1
-
 # m68k fails with error?
 TEST_START IF ${RUN} == m68k || ${DO_DEFAULT}
 CROSS = m68k-linux
-- 
cgit 


From 77da71b3a03ebb2bd06500ca1d85e1c5083bb005 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 30 Aug 2013 06:03:10 -0700
Subject: ide: Drop H8/300 driver

Architecture is gone, so there is no need to keep its ide driver around.

Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/ide/Kconfig     |   7 ----
 drivers/ide/Makefile    |   2 -
 drivers/ide/ide-h8300.c | 109 ------------------------------------------------
 3 files changed, 118 deletions(-)
 delete mode 100644 drivers/ide/ide-h8300.c

diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 02906ca99b41..5dba90a8a27c 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -722,13 +722,6 @@ config BLK_DEV_IDE_RAPIDE
 	  Say Y here if you want to support the Yellowstone RapIDE controller
 	  manufactured for use with Acorn computers.
 
-config IDE_H8300
-	tristate "H8300 IDE support"
-	depends on H8300
-	default y
-	help
-	  Enables the H8300 IDE driver.
-
 config BLK_DEV_GAYLE
 	tristate "Amiga Gayle IDE interface support"
 	depends on AMIGA
diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile
index af8d016c37ea..a04ee82f1c8f 100644
--- a/drivers/ide/Makefile
+++ b/drivers/ide/Makefile
@@ -78,8 +78,6 @@ obj-$(CONFIG_BLK_DEV_CMD640)		+= cmd640.o
 
 obj-$(CONFIG_BLK_DEV_IDE_PMAC)		+= pmac.o
 
-obj-$(CONFIG_IDE_H8300)			+= ide-h8300.o
-
 obj-$(CONFIG_IDE_GENERIC)		+= ide-generic.o
 obj-$(CONFIG_BLK_DEV_IDEPNP)		+= ide-pnp.o
 
diff --git a/drivers/ide/ide-h8300.c b/drivers/ide/ide-h8300.c
deleted file mode 100644
index 520f42c5445a..000000000000
--- a/drivers/ide/ide-h8300.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/*
- * H8/300 generic IDE interface
- */
-
-#include <linux/init.h>
-#include <linux/ide.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-
-#define DRV_NAME "ide-h8300"
-
-#define bswap(d) \
-({					\
-	u16 r;				\
-	__asm__("mov.b %w1,r1h\n\t"	\
-		"mov.b %x1,r1l\n\t"	\
-		"mov.w r1,%0"		\
-		:"=r"(r)		\
-		:"r"(d)			\
-		:"er1");		\
-	(r);				\
-})
-
-static void mm_outsw(unsigned long addr, void *buf, u32 len)
-{
-	unsigned short *bp = (unsigned short *)buf;
-	for (; len > 0; len--, bp++)
-		*(volatile u16 *)addr = bswap(*bp);
-}
-
-static void mm_insw(unsigned long addr, void *buf, u32 len)
-{
-	unsigned short *bp = (unsigned short *)buf;
-	for (; len > 0; len--, bp++)
-		*bp = bswap(*(volatile u16 *)addr);
-}
-
-static void h8300_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
-			     void *buf, unsigned int len)
-{
-	mm_insw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
-}
-
-static void h8300_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
-			      void *buf, unsigned int len)
-{
-	mm_outsw(drive->hwif->io_ports.data_addr, buf, (len + 1) / 2);
-}
-
-static const struct ide_tp_ops h8300_tp_ops = {
-	.exec_command		= ide_exec_command,
-	.read_status		= ide_read_status,
-	.read_altstatus		= ide_read_altstatus,
-	.write_devctl		= ide_write_devctl,
-
-	.dev_select		= ide_dev_select,
-	.tf_load		= ide_tf_load,
-	.tf_read		= ide_tf_read,
-
-	.input_data		= h8300_input_data,
-	.output_data		= h8300_output_data,
-};
-
-#define H8300_IDE_GAP (2)
-
-static inline void hw_setup(struct ide_hw *hw)
-{
-	int i;
-
-	memset(hw, 0, sizeof(*hw));
-	for (i = 0; i <= 7; i++)
-		hw->io_ports_array[i] = CONFIG_H8300_IDE_BASE + H8300_IDE_GAP*i;
-	hw->io_ports.ctl_addr = CONFIG_H8300_IDE_ALT;
-	hw->irq = EXT_IRQ0 + CONFIG_H8300_IDE_IRQ;
-}
-
-static const struct ide_port_info h8300_port_info = {
-	.tp_ops			= &h8300_tp_ops,
-	.host_flags		= IDE_HFLAG_NO_IO_32BIT | IDE_HFLAG_NO_DMA,
-	.chipset		= ide_generic,
-};
-
-static int __init h8300_ide_init(void)
-{
-	struct ide_hw hw, *hws[] = { &hw };
-
-	printk(KERN_INFO DRV_NAME ": H8/300 generic IDE interface\n");
-
-	if (!request_region(CONFIG_H8300_IDE_BASE, H8300_IDE_GAP*8, "ide-h8300"))
-		goto out_busy;
-	if (!request_region(CONFIG_H8300_IDE_ALT, H8300_IDE_GAP, "ide-h8300")) {
-		release_region(CONFIG_H8300_IDE_BASE, H8300_IDE_GAP*8);
-		goto out_busy;
-	}
-
-	hw_setup(&hw);
-
-	return ide_host_add(&h8300_port_info, hws, 1, NULL);
-
-out_busy:
-	printk(KERN_ERR "ide-h8300: IDE I/F resource already used.\n");
-
-	return -EBUSY;
-}
-
-module_init(h8300_ide_init);
-
-MODULE_LICENSE("GPL");
-- 
cgit 


From d95353e47a3ff67b3cd6554e5f4590774a95816c Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 30 Aug 2013 06:17:07 -0700
Subject: net/ethernet: smsc9194: Drop conditional code for H8/300

With the H8/300 architecture gone, this code is no longer necessary.

Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/net/ethernet/smsc/smc9194.c | 24 ------------------------
 1 file changed, 24 deletions(-)

diff --git a/drivers/net/ethernet/smsc/smc9194.c b/drivers/net/ethernet/smsc/smc9194.c
index e85c2e7e8246..afd9873e9bdb 100644
--- a/drivers/net/ethernet/smsc/smc9194.c
+++ b/drivers/net/ethernet/smsc/smc9194.c
@@ -95,14 +95,6 @@ static const char version[] =
 #define USE_32_BIT 1
 #endif
 
-#if defined(__H8300H__) || defined(__H8300S__)
-#define NO_AUTOPROBE
-#undef insl
-#undef outsl
-#define insl(a,b,l)  io_insl_noswap(a,b,l)
-#define outsl(a,b,l) io_outsl_noswap(a,b,l)
-#endif
-
 /*
  .the SMC9194 can be at any of the following port addresses.  To change,
  .for a slightly different card, you can add it to the array.  Keep in
@@ -114,12 +106,6 @@ struct devlist {
 	unsigned int irq;
 };
 
-#if defined(CONFIG_H8S_EDOSK2674)
-static struct devlist smc_devlist[] __initdata = {
-	{.port = 0xf80000, .irq = 16},
-	{.port = 0,        .irq = 0 },
-};
-#else
 static struct devlist smc_devlist[] __initdata = {
 	{.port = 0x200, .irq = 0},
 	{.port = 0x220, .irq = 0},
@@ -139,7 +125,6 @@ static struct devlist smc_devlist[] __initdata = {
 	{.port = 0x3E0, .irq = 0},
 	{.port = 0,     .irq = 0},
 };
-#endif
 /*
  . Wait time for memory to be free.  This probably shouldn't be
  . tuned that much, as waiting for this means nothing else happens
@@ -651,11 +636,7 @@ static void smc_hardware_send_packet( struct net_device * dev )
 #ifdef USE_32_BIT
 	if ( length & 0x2  ) {
 		outsl(ioaddr + DATA_1, buf,  length >> 2 );
-#if !defined(__H8300H__) && !defined(__H8300S__)
 		outw( *((word *)(buf + (length & 0xFFFFFFFC))),ioaddr +DATA_1);
-#else
-		ctrl_outw( *((word *)(buf + (length & 0xFFFFFFFC))),ioaddr +DATA_1);
-#endif
 	}
 	else
 		outsl(ioaddr + DATA_1, buf,  length >> 2 );
@@ -899,7 +880,6 @@ static int __init smc_probe(struct net_device *dev, int ioaddr)
 		retval = -ENODEV;
 		goto err_out;
 	}
-#if !defined(CONFIG_H8S_EDOSK2674)
 	/* well, we've already written once, so hopefully another time won't
  	   hurt.  This time, I need to switch the bank register to bank 1,
 	   so I can access the base address register */
@@ -914,10 +894,6 @@ static int __init smc_probe(struct net_device *dev, int ioaddr)
 		retval = -ENODEV;
 		goto err_out;
 	}
-#else
-	(void)base_address_register; /* Warning suppression */
-#endif
-
 
 	/*  check if the revision register is something that I recognize.
 	    These might need to be added to later, as future revisions
-- 
cgit 


From dd9589c7c00ab41e49d972dc9a01fcac7dc39961 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 30 Aug 2013 06:04:57 -0700
Subject: net/ethernet: Drop H8/300 Ethernet driver

Architecture is gone, so this driver is no longer needed.

Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/net/Space.c                  |   3 +-
 drivers/net/ethernet/8390/Kconfig    |   7 -
 drivers/net/ethernet/8390/Makefile   |   1 -
 drivers/net/ethernet/8390/ne-h8300.c | 684 -----------------------------------
 4 files changed, 1 insertion(+), 694 deletions(-)
 delete mode 100644 drivers/net/ethernet/8390/ne-h8300.c

diff --git a/drivers/net/Space.c b/drivers/net/Space.c
index 3a8c7532ee0d..a7271e093845 100644
--- a/drivers/net/Space.c
+++ b/drivers/net/Space.c
@@ -102,8 +102,7 @@ static struct devprobe2 isa_probes[] __initdata = {
 #ifdef CONFIG_WD80x3
 	{wd_probe, 0},
 #endif
-#if defined(CONFIG_NE2000) || \
-    defined(CONFIG_NE_H8300)  /* ISA (use ne2k-pci for PCI cards) */
+#if defined(CONFIG_NE2000) /* ISA (use ne2k-pci for PCI cards) */
 	{ne_probe, 0},
 #endif
 #ifdef CONFIG_LANCE		/* ISA/VLB (use pcnet32 for PCI cards) */
diff --git a/drivers/net/ethernet/8390/Kconfig b/drivers/net/ethernet/8390/Kconfig
index becef25fa194..0988811f4e40 100644
--- a/drivers/net/ethernet/8390/Kconfig
+++ b/drivers/net/ethernet/8390/Kconfig
@@ -146,13 +146,6 @@ config PCMCIA_PCNET
 	  To compile this driver as a module, choose M here: the module will be
 	  called pcnet_cs.  If unsure, say N.
 
-config NE_H8300
-	tristate "NE2000 compatible support for H8/300"
-	depends on H8300H_AKI3068NET || H8300H_H8MAX
-	---help---
-	  Say Y here if you want to use the NE2000 compatible
-	  controller on the Renesas H8/300 processor.
-
 config STNIC
 	tristate "National DP83902AV  support"
 	depends on SUPERH
diff --git a/drivers/net/ethernet/8390/Makefile b/drivers/net/ethernet/8390/Makefile
index 588954a79b2a..ff3b31894188 100644
--- a/drivers/net/ethernet/8390/Makefile
+++ b/drivers/net/ethernet/8390/Makefile
@@ -10,7 +10,6 @@ obj-$(CONFIG_HYDRA) += hydra.o 8390.o
 obj-$(CONFIG_MCF8390) += mcf8390.o 8390.o
 obj-$(CONFIG_NE2000) += ne.o 8390p.o
 obj-$(CONFIG_NE2K_PCI) += ne2k-pci.o 8390.o
-obj-$(CONFIG_NE_H8300) += ne-h8300.o 8390.o
 obj-$(CONFIG_PCMCIA_AXNET) += axnet_cs.o 8390.o
 obj-$(CONFIG_PCMCIA_PCNET) += pcnet_cs.o 8390.o
 obj-$(CONFIG_STNIC) += stnic.o 8390.o
diff --git a/drivers/net/ethernet/8390/ne-h8300.c b/drivers/net/ethernet/8390/ne-h8300.c
deleted file mode 100644
index 7fc28f2d28a6..000000000000
--- a/drivers/net/ethernet/8390/ne-h8300.c
+++ /dev/null
@@ -1,684 +0,0 @@
-/* ne-h8300.c: A NE2000 clone on H8/300 driver for linux. */
-/*
-    original ne.c
-    Written 1992-94 by Donald Becker.
-
-    Copyright 1993 United States Government as represented by the
-    Director, National Security Agency.
-
-    This software may be used and distributed according to the terms
-    of the GNU General Public License, incorporated herein by reference.
-
-    The author may be reached as becker@scyld.com, or C/O
-    Scyld Computing Corporation, 410 Severn Ave., Suite 210, Annapolis MD 21403
-
-    H8/300 modified
-    Yoshinori Sato <ysato@users.sourceforge.jp>
-*/
-
-static const char version1[] =
-"ne-h8300.c:v1.00 2004/04/11 ysato\n";
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/jiffies.h>
-
-#include <asm/io.h>
-#include <asm/irq.h>
-
-#define EI_SHIFT(x)	(ei_local->reg_offset[x])
-
-#include "8390.h"
-
-#define DRV_NAME "ne-h8300"
-
-/* Some defines that people can play with if so inclined. */
-
-/* Do we perform extra sanity checks on stuff ? */
-/* #define NE_SANITY_CHECK */
-
-/* Do we implement the read before write bugfix ? */
-/* #define NE_RW_BUGFIX */
-
-/* Do we have a non std. amount of memory? (in units of 256 byte pages) */
-/* #define PACKETBUF_MEMSIZE	0x40 */
-
-/* A zero-terminated list of I/O addresses to be probed at boot. */
-
-/* ---- No user-serviceable parts below ---- */
-
-static const char version[] =
-    "8390.c:v1.10cvs 9/23/94 Donald Becker (becker@cesdis.gsfc.nasa.gov)\n";
-
-#include "lib8390.c"
-
-#define NE_BASE	 (dev->base_addr)
-#define NE_CMD	 	0x00
-#define NE_DATAPORT	(ei_status.word16?0x20:0x10)	/* NatSemi-defined port window offset. */
-#define NE_RESET	(ei_status.word16?0x3f:0x1f)	/* Issue a read to reset, a write to clear. */
-#define NE_IO_EXTENT	(ei_status.word16?0x40:0x20)
-
-#define NESM_START_PG	0x40	/* First page of TX buffer */
-#define NESM_STOP_PG	0x80	/* Last page +1 of RX ring */
-
-static int ne_probe1(struct net_device *dev, int ioaddr);
-
-static int ne_open(struct net_device *dev);
-static int ne_close(struct net_device *dev);
-
-static void ne_reset_8390(struct net_device *dev);
-static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr,
-			  int ring_page);
-static void ne_block_input(struct net_device *dev, int count,
-			  struct sk_buff *skb, int ring_offset);
-static void ne_block_output(struct net_device *dev, const int count,
-		const unsigned char *buf, const int start_page);
-
-
-static u32 reg_offset[16];
-
-static int __init init_reg_offset(struct net_device *dev,unsigned long base_addr)
-{
-	struct ei_device *ei_local = netdev_priv(dev);
-	int i;
-	unsigned char bus_width;
-
-	bus_width = *(volatile unsigned char *)ABWCR;
-	bus_width &= 1 << ((base_addr >> 21) & 7);
-
-	for (i = 0; i < ARRAY_SIZE(reg_offset); i++)
-		if (bus_width == 0)
-			reg_offset[i] = i * 2 + 1;
-		else
-			reg_offset[i] = i;
-
-	ei_local->reg_offset = reg_offset;
-	return 0;
-}
-
-static int __initdata h8300_ne_count = 0;
-#ifdef CONFIG_H8300H_H8MAX
-static unsigned long __initdata h8300_ne_base[] = { 0x800600 };
-static int h8300_ne_irq[] = {EXT_IRQ4};
-#endif
-#ifdef CONFIG_H8300H_AKI3068NET
-static unsigned long __initdata h8300_ne_base[] = { 0x200000 };
-static int h8300_ne_irq[] = {EXT_IRQ5};
-#endif
-
-static inline int init_dev(struct net_device *dev)
-{
-	if (h8300_ne_count < ARRAY_SIZE(h8300_ne_base)) {
-		dev->base_addr = h8300_ne_base[h8300_ne_count];
-		dev->irq       = h8300_ne_irq[h8300_ne_count];
-		h8300_ne_count++;
-		return 0;
-	} else
-		return -ENODEV;
-}
-
-/*  Probe for various non-shared-memory ethercards.
-
-   NEx000-clone boards have a Station Address PROM (SAPROM) in the packet
-   buffer memory space.  NE2000 clones have 0x57,0x57 in bytes 0x0e,0x0f of
-   the SAPROM, while other supposed NE2000 clones must be detected by their
-   SA prefix.
-
-   Reading the SAPROM from a word-wide card with the 8390 set in byte-wide
-   mode results in doubled values, which can be detected and compensated for.
-
-   The probe is also responsible for initializing the card and filling
-   in the 'dev' and 'ei_status' structures.
-
-   We use the minimum memory size for some ethercard product lines, iff we can't
-   distinguish models.  You can increase the packet buffer size by setting
-   PACKETBUF_MEMSIZE.  Reported Cabletron packet buffer locations are:
-	E1010   starts at 0x100 and ends at 0x2000.
-	E1010-x starts at 0x100 and ends at 0x8000. ("-x" means "more memory")
-	E2010	 starts at 0x100 and ends at 0x4000.
-	E2010-x starts at 0x100 and ends at 0xffff.  */
-
-static int __init do_ne_probe(struct net_device *dev)
-{
-	unsigned int base_addr = dev->base_addr;
-
-	/* First check any supplied i/o locations. User knows best. <cough> */
-	if (base_addr > 0x1ff)	/* Check a single specified location. */
-		return ne_probe1(dev, base_addr);
-	else if (base_addr != 0)	/* Don't probe at all. */
-		return -ENXIO;
-
-	return -ENODEV;
-}
-
-static void cleanup_card(struct net_device *dev)
-{
-	free_irq(dev->irq, dev);
-	release_region(dev->base_addr, NE_IO_EXTENT);
-}
-
-#ifndef MODULE
-struct net_device * __init ne_probe(int unit)
-{
-	struct net_device *dev = ____alloc_ei_netdev(0);
-	int err;
-
-	if (!dev)
-		return ERR_PTR(-ENOMEM);
-
-	if (init_dev(dev))
-		return ERR_PTR(-ENODEV);
-
-	sprintf(dev->name, "eth%d", unit);
-	netdev_boot_setup_check(dev);
-
-	err = init_reg_offset(dev, dev->base_addr);
-	if (err)
-		goto out;
-
-	err = do_ne_probe(dev);
-	if (err)
-		goto out;
-	return dev;
-out:
-	free_netdev(dev);
-	return ERR_PTR(err);
-}
-#endif
-
-static const struct net_device_ops ne_netdev_ops = {
-	.ndo_open		= ne_open,
-	.ndo_stop		= ne_close,
-
-	.ndo_start_xmit		= __ei_start_xmit,
-	.ndo_tx_timeout		= __ei_tx_timeout,
-	.ndo_get_stats		= __ei_get_stats,
-	.ndo_set_rx_mode	= __ei_set_multicast_list,
-	.ndo_validate_addr	= eth_validate_addr,
-	.ndo_set_mac_address	= eth_mac_addr,
-	.ndo_change_mtu		= eth_change_mtu,
-#ifdef CONFIG_NET_POLL_CONTROLLER
-	.ndo_poll_controller	= __ei_poll,
-#endif
-};
-
-static int __init ne_probe1(struct net_device *dev, int ioaddr)
-{
-	int i;
-	unsigned char SA_prom[16];
-	int wordlength = 2;
-	const char *name = NULL;
-	int start_page, stop_page;
-	int reg0, ret;
-	static unsigned version_printed;
-	struct ei_device *ei_local = netdev_priv(dev);
-	unsigned char bus_width;
-
-	if (!request_region(ioaddr, NE_IO_EXTENT, DRV_NAME))
-		return -EBUSY;
-
-	reg0 = inb_p(ioaddr);
-	if (reg0 == 0xFF) {
-		ret = -ENODEV;
-		goto err_out;
-	}
-
-	/* Do a preliminary verification that we have a 8390. */
-	{
-		int regd;
-		outb_p(E8390_NODMA+E8390_PAGE1+E8390_STOP, ioaddr + E8390_CMD);
-		regd = inb_p(ioaddr + EI_SHIFT(0x0d));
-		outb_p(0xff, ioaddr + EI_SHIFT(0x0d));
-		outb_p(E8390_NODMA+E8390_PAGE0, ioaddr + E8390_CMD);
-		inb_p(ioaddr + EN0_COUNTER0); /* Clear the counter by reading. */
-		if (inb_p(ioaddr + EN0_COUNTER0) != 0) {
-			outb_p(reg0, ioaddr + EI_SHIFT(0));
-			outb_p(regd, ioaddr + EI_SHIFT(0x0d));	/* Restore the old values. */
-			ret = -ENODEV;
-			goto err_out;
-		}
-	}
-
-	if (ei_debug  &&  version_printed++ == 0)
-		printk(KERN_INFO "%s", version1);
-
-	printk(KERN_INFO "NE*000 ethercard probe at %08x:", ioaddr);
-
-	/* Read the 16 bytes of station address PROM.
-	   We must first initialize registers, similar to NS8390_init(eifdev, 0).
-	   We can't reliably read the SAPROM address without this.
-	   (I learned the hard way!). */
-	{
-		struct {unsigned char value, offset; } program_seq[] =
-		{
-			{E8390_NODMA+E8390_PAGE0+E8390_STOP, E8390_CMD}, /* Select page 0*/
-			{0x48,	EN0_DCFG},	/* Set byte-wide (0x48) access. */
-			{0x00,	EN0_RCNTLO},	/* Clear the count regs. */
-			{0x00,	EN0_RCNTHI},
-			{0x00,	EN0_IMR},	/* Mask completion irq. */
-			{0xFF,	EN0_ISR},
-			{E8390_RXOFF, EN0_RXCR},	/* 0x20  Set to monitor */
-			{E8390_TXOFF, EN0_TXCR},	/* 0x02  and loopback mode. */
-			{32,	EN0_RCNTLO},
-			{0x00,	EN0_RCNTHI},
-			{0x00,	EN0_RSARLO},	/* DMA starting at 0x0000. */
-			{0x00,	EN0_RSARHI},
-			{E8390_RREAD+E8390_START, E8390_CMD},
-		};
-
-		for (i = 0; i < ARRAY_SIZE(program_seq); i++)
-			outb_p(program_seq[i].value, ioaddr + program_seq[i].offset);
-
-	}
-	bus_width = *(volatile unsigned char *)ABWCR;
-	bus_width &= 1 << ((ioaddr >> 21) & 7);
-	ei_status.word16 = (bus_width == 0); /* temporary setting */
-	for(i = 0; i < 16 /*sizeof(SA_prom)*/; i++) {
-		SA_prom[i] = inb_p(ioaddr + NE_DATAPORT);
-		inb_p(ioaddr + NE_DATAPORT); /* dummy read */
-	}
-
-	start_page = NESM_START_PG;
-	stop_page = NESM_STOP_PG;
-
-	if (bus_width)
-		wordlength = 1;
-	else
-		outb_p(0x49, ioaddr + EN0_DCFG);
-
-	/* Set up the rest of the parameters. */
-	name = (wordlength == 2) ? "NE2000" : "NE1000";
-
-	if (! dev->irq) {
-		printk(" failed to detect IRQ line.\n");
-		ret = -EAGAIN;
-		goto err_out;
-	}
-
-	/* Snarf the interrupt now.  There's no point in waiting since we cannot
-	   share and the board will usually be enabled. */
-	ret = request_irq(dev->irq, __ei_interrupt, 0, name, dev);
-	if (ret) {
-		printk (" unable to get IRQ %d (errno=%d).\n", dev->irq, ret);
-		goto err_out;
-	}
-
-	dev->base_addr = ioaddr;
-
-	for (i = 0; i < ETH_ALEN; i++)
-		dev->dev_addr[i] = SA_prom[i];
-	printk(" %pM\n", dev->dev_addr);
-
-	printk("%s: %s found at %#x, using IRQ %d.\n",
-		dev->name, name, ioaddr, dev->irq);
-
-	ei_status.name = name;
-	ei_status.tx_start_page = start_page;
-	ei_status.stop_page = stop_page;
-	ei_status.word16 = (wordlength == 2);
-
-	ei_status.rx_start_page = start_page + TX_PAGES;
-#ifdef PACKETBUF_MEMSIZE
-	 /* Allow the packet buffer size to be overridden by know-it-alls. */
-	ei_status.stop_page = ei_status.tx_start_page + PACKETBUF_MEMSIZE;
-#endif
-
-	ei_status.reset_8390 = &ne_reset_8390;
-	ei_status.block_input = &ne_block_input;
-	ei_status.block_output = &ne_block_output;
-	ei_status.get_8390_hdr = &ne_get_8390_hdr;
-	ei_status.priv = 0;
-
-	dev->netdev_ops = &ne_netdev_ops;
-
-	__NS8390_init(dev, 0);
-
-	ret = register_netdev(dev);
-	if (ret)
-		goto out_irq;
-	return 0;
-out_irq:
-	free_irq(dev->irq, dev);
-err_out:
-	release_region(ioaddr, NE_IO_EXTENT);
-	return ret;
-}
-
-static int ne_open(struct net_device *dev)
-{
-	__ei_open(dev);
-	return 0;
-}
-
-static int ne_close(struct net_device *dev)
-{
-	if (ei_debug > 1)
-		printk(KERN_DEBUG "%s: Shutting down ethercard.\n", dev->name);
-	__ei_close(dev);
-	return 0;
-}
-
-/* Hard reset the card.  This used to pause for the same period that a
-   8390 reset command required, but that shouldn't be necessary. */
-
-static void ne_reset_8390(struct net_device *dev)
-{
-	unsigned long reset_start_time = jiffies;
-	struct ei_device *ei_local = netdev_priv(dev);
-
-	if (ei_debug > 1)
-		printk(KERN_DEBUG "resetting the 8390 t=%ld...", jiffies);
-
-	/* DON'T change these to inb_p/outb_p or reset will fail on clones. */
-	outb(inb(NE_BASE + NE_RESET), NE_BASE + NE_RESET);
-
-	ei_status.txing = 0;
-	ei_status.dmaing = 0;
-
-	/* This check _should_not_ be necessary, omit eventually. */
-	while ((inb_p(NE_BASE+EN0_ISR) & ENISR_RESET) == 0)
-		if (time_after(jiffies, reset_start_time + 2*HZ/100)) {
-			printk(KERN_WARNING "%s: ne_reset_8390() did not complete.\n", dev->name);
-			break;
-		}
-	outb_p(ENISR_RESET, NE_BASE + EN0_ISR);	/* Ack intr. */
-}
-
-/* Grab the 8390 specific header. Similar to the block_input routine, but
-   we don't need to be concerned with ring wrap as the header will be at
-   the start of a page, so we optimize accordingly. */
-
-static void ne_get_8390_hdr(struct net_device *dev, struct e8390_pkt_hdr *hdr, int ring_page)
-{
-	struct ei_device *ei_local = netdev_priv(dev);
-	/* This *shouldn't* happen. If it does, it's the last thing you'll see */
-
-	if (ei_status.dmaing)
-	{
-		printk(KERN_EMERG "%s: DMAing conflict in ne_get_8390_hdr "
-			"[DMAstat:%d][irqlock:%d].\n",
-			dev->name, ei_status.dmaing, ei_status.irqlock);
-		return;
-	}
-
-	ei_status.dmaing |= 0x01;
-	outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, NE_BASE + NE_CMD);
-	outb_p(sizeof(struct e8390_pkt_hdr), NE_BASE + EN0_RCNTLO);
-	outb_p(0, NE_BASE + EN0_RCNTHI);
-	outb_p(0, NE_BASE + EN0_RSARLO);		/* On page boundary */
-	outb_p(ring_page, NE_BASE + EN0_RSARHI);
-	outb_p(E8390_RREAD+E8390_START, NE_BASE + NE_CMD);
-
-	if (ei_status.word16) {
-		int len;
-		unsigned short *p = (unsigned short *)hdr;
-		for (len = sizeof(struct e8390_pkt_hdr)>>1; len > 0; len--)
-			*p++ = inw(NE_BASE + NE_DATAPORT);
-	} else
-		insb(NE_BASE + NE_DATAPORT, hdr, sizeof(struct e8390_pkt_hdr));
-
-	outb_p(ENISR_RDC, NE_BASE + EN0_ISR);	/* Ack intr. */
-	ei_status.dmaing &= ~0x01;
-
-	le16_to_cpus(&hdr->count);
-}
-
-/* Block input and output, similar to the Crynwr packet driver.  If you
-   are porting to a new ethercard, look at the packet driver source for hints.
-   The NEx000 doesn't share the on-board packet memory -- you have to put
-   the packet out through the "remote DMA" dataport using outb. */
-
-static void ne_block_input(struct net_device *dev, int count, struct sk_buff *skb, int ring_offset)
-{
-	struct ei_device *ei_local = netdev_priv(dev);
-#ifdef NE_SANITY_CHECK
-	int xfer_count = count;
-#endif
-	char *buf = skb->data;
-
-	/* This *shouldn't* happen. If it does, it's the last thing you'll see */
-	if (ei_status.dmaing)
-	{
-		printk(KERN_EMERG "%s: DMAing conflict in ne_block_input "
-			"[DMAstat:%d][irqlock:%d].\n",
-			dev->name, ei_status.dmaing, ei_status.irqlock);
-		return;
-	}
-	ei_status.dmaing |= 0x01;
-	outb_p(E8390_NODMA+E8390_PAGE0+E8390_START, NE_BASE + NE_CMD);
-	outb_p(count & 0xff, NE_BASE + EN0_RCNTLO);
-	outb_p(count >> 8, NE_BASE + EN0_RCNTHI);
-	outb_p(ring_offset & 0xff, NE_BASE + EN0_RSARLO);
-	outb_p(ring_offset >> 8, NE_BASE + EN0_RSARHI);
-	outb_p(E8390_RREAD+E8390_START, NE_BASE + NE_CMD);
-	if (ei_status.word16)
-	{
-		int len;
-		unsigned short *p = (unsigned short *)buf;
-		for (len = count>>1; len > 0; len--)
-			*p++ = inw(NE_BASE + NE_DATAPORT);
-		if (count & 0x01)
-		{
-			buf[count-1] = inb(NE_BASE + NE_DATAPORT);
-#ifdef NE_SANITY_CHECK
-			xfer_count++;
-#endif
-		}
-	} else {
-		insb(NE_BASE + NE_DATAPORT, buf, count);
-	}
-
-#ifdef NE_SANITY_CHECK
-	/* This was for the ALPHA version only, but enough people have
-	   been encountering problems so it is still here.  If you see
-	   this message you either 1) have a slightly incompatible clone
-	   or 2) have noise/speed problems with your bus. */
-
-	if (ei_debug > 1)
-	{
-		/* DMA termination address check... */
-		int addr, tries = 20;
-		do {
-			/* DON'T check for 'inb_p(EN0_ISR) & ENISR_RDC' here
-			   -- it's broken for Rx on some cards! */
-			int high = inb_p(NE_BASE + EN0_RSARHI);
-			int low = inb_p(NE_BASE + EN0_RSARLO);
-			addr = (high << 8) + low;
-			if (((ring_offset + xfer_count) & 0xff) == low)
-				break;
-		} while (--tries > 0);
-	 	if (tries <= 0)
-			printk(KERN_WARNING "%s: RX transfer address mismatch,"
-				"%#4.4x (expected) vs. %#4.4x (actual).\n",
-				dev->name, ring_offset + xfer_count, addr);
-	}
-#endif
-	outb_p(ENISR_RDC, NE_BASE + EN0_ISR);	/* Ack intr. */
-	ei_status.dmaing &= ~0x01;
-}
-
-static void ne_block_output(struct net_device *dev, int count,
-		const unsigned char *buf, const int start_page)
-{
-	struct ei_device *ei_local = netdev_priv(dev);
-	unsigned long dma_start;
-#ifdef NE_SANITY_CHECK
-	int retries = 0;
-#endif
-
-	/* Round the count up for word writes.  Do we need to do this?
-	   What effect will an odd byte count have on the 8390?
-	   I should check someday. */
-
-	if (ei_status.word16 && (count & 0x01))
-		count++;
-
-	/* This *shouldn't* happen. If it does, it's the last thing you'll see */
-	if (ei_status.dmaing)
-	{
-		printk(KERN_EMERG "%s: DMAing conflict in ne_block_output."
-			"[DMAstat:%d][irqlock:%d]\n",
-			dev->name, ei_status.dmaing, ei_status.irqlock);
-		return;
-	}
-	ei_status.dmaing |= 0x01;
-	/* We should already be in page 0, but to be safe... */
-	outb_p(E8390_PAGE0+E8390_START+E8390_NODMA, NE_BASE + NE_CMD);
-
-#ifdef NE_SANITY_CHECK
-retry:
-#endif
-
-#ifdef NE8390_RW_BUGFIX
-	/* Handle the read-before-write bug the same way as the
-	   Crynwr packet driver -- the NatSemi method doesn't work.
-	   Actually this doesn't always work either, but if you have
-	   problems with your NEx000 this is better than nothing! */
-
-	outb_p(0x42, NE_BASE + EN0_RCNTLO);
-	outb_p(0x00, NE_BASE + EN0_RCNTHI);
-	outb_p(0x42, NE_BASE + EN0_RSARLO);
-	outb_p(0x00, NE_BASE + EN0_RSARHI);
-	outb_p(E8390_RREAD+E8390_START, NE_BASE + NE_CMD);
-	/* Make certain that the dummy read has occurred. */
-	udelay(6);
-#endif
-
-	outb_p(ENISR_RDC, NE_BASE + EN0_ISR);
-
-	/* Now the normal output. */
-	outb_p(count & 0xff, NE_BASE + EN0_RCNTLO);
-	outb_p(count >> 8,   NE_BASE + EN0_RCNTHI);
-	outb_p(0x00, NE_BASE + EN0_RSARLO);
-	outb_p(start_page, NE_BASE + EN0_RSARHI);
-
-	outb_p(E8390_RWRITE+E8390_START, NE_BASE + NE_CMD);
-	if (ei_status.word16) {
-		int len;
-		unsigned short *p = (unsigned short *)buf;
-		for (len = count>>1; len > 0; len--)
-			outw(*p++, NE_BASE + NE_DATAPORT);
-	} else {
-		outsb(NE_BASE + NE_DATAPORT, buf, count);
-	}
-
-	dma_start = jiffies;
-
-#ifdef NE_SANITY_CHECK
-	/* This was for the ALPHA version only, but enough people have
-	   been encountering problems so it is still here. */
-
-	if (ei_debug > 1)
-	{
-		/* DMA termination address check... */
-		int addr, tries = 20;
-		do {
-			int high = inb_p(NE_BASE + EN0_RSARHI);
-			int low = inb_p(NE_BASE + EN0_RSARLO);
-			addr = (high << 8) + low;
-			if ((start_page << 8) + count == addr)
-				break;
-		} while (--tries > 0);
-
-		if (tries <= 0)
-		{
-			printk(KERN_WARNING "%s: Tx packet transfer address mismatch,"
-				"%#4.4x (expected) vs. %#4.4x (actual).\n",
-				dev->name, (start_page << 8) + count, addr);
-			if (retries++ == 0)
-				goto retry;
-		}
-	}
-#endif
-
-	while ((inb_p(NE_BASE + EN0_ISR) & ENISR_RDC) == 0)
-		if (time_after(jiffies, dma_start + 2*HZ/100)) {		/* 20ms */
-			printk(KERN_WARNING "%s: timeout waiting for Tx RDC.\n", dev->name);
-			ne_reset_8390(dev);
-			__NS8390_init(dev,1);
-			break;
-		}
-
-	outb_p(ENISR_RDC, NE_BASE + EN0_ISR);	/* Ack intr. */
-	ei_status.dmaing &= ~0x01;
-}
-
-
-#ifdef MODULE
-#define MAX_NE_CARDS	1	/* Max number of NE cards per module */
-static struct net_device *dev_ne[MAX_NE_CARDS];
-static int io[MAX_NE_CARDS];
-static int irq[MAX_NE_CARDS];
-static int bad[MAX_NE_CARDS];	/* 0xbad = bad sig or no reset ack */
-
-module_param_array(io, int, NULL, 0);
-module_param_array(irq, int, NULL, 0);
-module_param_array(bad, int, NULL, 0);
-MODULE_PARM_DESC(io, "I/O base address(es)");
-MODULE_PARM_DESC(irq, "IRQ number(s)");
-MODULE_DESCRIPTION("H8/300 NE2000 Ethernet driver");
-MODULE_LICENSE("GPL");
-
-/* This is set up so that no ISA autoprobe takes place. We can't guarantee
-that the ne2k probe is the last 8390 based probe to take place (as it
-is at boot) and so the probe will get confused by any other 8390 cards.
-ISA device autoprobes on a running machine are not recommended anyway. */
-
-int init_module(void)
-{
-	int this_dev, found = 0;
-	int err;
-
-	for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) {
-		struct net_device *dev = ____alloc_ei_netdev(0);
-		if (!dev)
-			break;
-		if (io[this_dev]) {
-			dev->irq = irq[this_dev];
-			dev->mem_end = bad[this_dev];
-			dev->base_addr = io[this_dev];
-		} else {
-			dev->base_addr = h8300_ne_base[this_dev];
-			dev->irq = h8300_ne_irq[this_dev];
-		}
-		err = init_reg_offset(dev, dev->base_addr);
-		if (!err) {
-			if (do_ne_probe(dev) == 0) {
-				dev_ne[found++] = dev;
-				continue;
-			}
-		}
-		free_netdev(dev);
-		if (found)
-			break;
-		if (io[this_dev] != 0)
-			printk(KERN_WARNING "ne.c: No NE*000 card found at i/o = %#x\n", dev->base_addr);
-		else
-			printk(KERN_NOTICE "ne.c: You must supply \"io=0xNNN\" value(s) for ISA cards.\n");
-		return -ENXIO;
-	}
-	if (found)
-		return 0;
-	return -ENODEV;
-}
-
-void cleanup_module(void)
-{
-	int this_dev;
-
-	for (this_dev = 0; this_dev < MAX_NE_CARDS; this_dev++) {
-		struct net_device *dev = dev_ne[this_dev];
-		if (dev) {
-			unregister_netdev(dev);
-			cleanup_card(dev);
-			free_netdev(dev);
-		}
-	}
-}
-#endif /* MODULE */
-- 
cgit 


From 1700a449fec27c1cdabd9352c0da2c6ddf0bbaea Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 30 Aug 2013 06:09:56 -0700
Subject: watchdog: Drop references to H8300 architecture

Architecture is gone.

Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/watchdog/Kconfig  | 2 --
 drivers/watchdog/Makefile | 2 --
 2 files changed, 4 deletions(-)

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index d1d53f301de7..6df632e0bb55 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -418,8 +418,6 @@ config BFIN_WDT
 
 # FRV Architecture
 
-# H8300 Architecture
-
 # X86 (i386 + ia64 + x86_64) Architecture
 
 config ACQUIRE_WDT
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index 6c5bb274d3cd..8c7b8bcbbdc5 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -66,8 +66,6 @@ obj-$(CONFIG_BFIN_WDT) += bfin_wdt.o
 
 # FRV Architecture
 
-# H8300 Architecture
-
 # X86 (i386 + ia64 + x86_64) Architecture
 obj-$(CONFIG_ACQUIRE_WDT) += acquirewdt.o
 obj-$(CONFIG_ADVANTECH_WDT) += advantechwdt.o
-- 
cgit 


From 1c927e75f4022368dd2551b153c902b449909ac5 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 30 Aug 2013 06:12:13 -0700
Subject: Drop MAINTAINERS entry for H8/300

The architecture is gone.

Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 MAINTAINERS | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index e61c2e83fc2b..6d0dabec3942 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8570,14 +8570,6 @@ S:	Maintained
 F:	arch/m68k/*/*_no.*
 F:	arch/m68k/include/asm/*_no.*
 
-UCLINUX FOR RENESAS H8/300 (H8300)
-M:	Yoshinori Sato <ysato@users.sourceforge.jp>
-W:	http://uclinux-h8.sourceforge.jp/
-S:	Supported
-F:	arch/h8300/
-F:	drivers/ide/ide-h8300.c
-F:	drivers/net/ethernet/8390/ne-h8300.c
-
 UDF FILESYSTEM
 M:	Jan Kara <jack@suse.cz>
 S:	Maintained
-- 
cgit 


From 6f6f467eaaa0ac4fb77714d0172d65c781dabb8c Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 30 Aug 2013 06:12:40 -0700
Subject: Drop remaining references to H8/300 architecture

With the architecture gone, any references to it are no longer needed.

Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 include/uapi/linux/audit.h  | 1 -
 include/uapi/linux/elf-em.h | 1 -
 2 files changed, 2 deletions(-)

diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index 75cef3fd97ad..db0b825b4810 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -329,7 +329,6 @@ enum {
 #define AUDIT_ARCH_ARMEB	(EM_ARM)
 #define AUDIT_ARCH_CRIS		(EM_CRIS|__AUDIT_ARCH_LE)
 #define AUDIT_ARCH_FRV		(EM_FRV)
-#define AUDIT_ARCH_H8300	(EM_H8_300)
 #define AUDIT_ARCH_I386		(EM_386|__AUDIT_ARCH_LE)
 #define AUDIT_ARCH_IA64		(EM_IA_64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE)
 #define AUDIT_ARCH_M32R		(EM_M32R)
diff --git a/include/uapi/linux/elf-em.h b/include/uapi/linux/elf-em.h
index 59c17a2d38ad..01529bd96438 100644
--- a/include/uapi/linux/elf-em.h
+++ b/include/uapi/linux/elf-em.h
@@ -31,7 +31,6 @@
 #define EM_CRIS		76	/* Axis Communications 32-bit embedded processor */
 #define EM_V850		87	/* NEC v850 */
 #define EM_M32R		88	/* Renesas M32R */
-#define EM_H8_300	46	/* Renesas H8/300,300H,H8S */
 #define EM_MN10300	89	/* Panasonic/MEI MN10300, AM33 */
 #define EM_BLACKFIN     106     /* ADI Blackfin Processor */
 #define EM_TI_C6000	140	/* TI C6X DSPs */
-- 
cgit 


From ca40e295018f7df46c7b8a12c3e82b88418322fb Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 30 Aug 2013 09:52:51 -0700
Subject: fs/minix: Drop dependency on H8300

The H8/300 architecture is gone. Drop dependencies on it.

Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 fs/minix/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/minix/Kconfig b/fs/minix/Kconfig
index 6624684dd5de..f2a0cfcef11d 100644
--- a/fs/minix/Kconfig
+++ b/fs/minix/Kconfig
@@ -18,7 +18,7 @@ config MINIX_FS
 
 config MINIX_FS_NATIVE_ENDIAN
 	def_bool MINIX_FS
-	depends on H8300 || M32R || MICROBLAZE || MIPS || S390 || SUPERH || SPARC || XTENSA || (M68K && !MMU)
+	depends on M32R || MICROBLAZE || MIPS || S390 || SUPERH || SPARC || XTENSA || (M68K && !MMU)
 
 config MINIX_FS_BIG_ENDIAN_16BIT_INDEXED
 	def_bool MINIX_FS
-- 
cgit 


From 0d0d110720d7960b77c03c9f2597faaff4b484ae Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Mon, 16 Sep 2013 14:52:00 +0200
Subject: GFS2: d_splice_alias() can't return error

unless it was given an IS_ERR(inode), which isn't the case here.  So clean
up the unnecessary error handling in gfs2_create_inode().

This paves the way for real fixes (hence the stable Cc).

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: stable@vger.kernel.org
---
 fs/gfs2/inode.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 64915eeae5a7..6d7f976aa328 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -584,7 +584,7 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
 	if (!IS_ERR(inode)) {
 		d = d_splice_alias(inode, dentry);
 		error = 0;
-		if (file && !IS_ERR(d)) {
+		if (file) {
 			if (d == NULL)
 				d = dentry;
 			if (S_ISREG(inode->i_mode))
@@ -593,8 +593,6 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
 				error = finish_no_open(file, d);
 		}
 		gfs2_glock_dq_uninit(ghs);
-		if (IS_ERR(d))
-			return PTR_ERR(d);
 		return error;
 	} else if (error != -ENOENT) {
 		goto fail_gunlock;
-- 
cgit 


From 6aa7640f306a1dd0923d29d9190c5686907d5140 Mon Sep 17 00:00:00 2001
From: Bob Peterson <rpeterso@redhat.com>
Date: Wed, 11 Sep 2013 13:44:01 -0500
Subject: GFS2: optimize rbm_from_block wrt bi_start

In function gfs2_rbm_from_block, it starts by checking if the block
falls within the first bitmap. It does so by checking if the rbm's
offset is less than (rbm->bi->bi_start + rbm->bi->bi_len) * GFS2_NBBY.
However, the first bitmap will always have bi_start==0. Therefore
this is an unnecessary calculation in a function that gets called
billions of times. This patch removes the reference to bi_start.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---
 fs/gfs2/rgrp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 69317435faa7..7a6fa03bb32a 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -262,7 +262,7 @@ static int gfs2_rbm_from_block(struct gfs2_rbm *rbm, u64 block)
 	rbm->bi = rbm->rgd->rd_bits;
 	rbm->offset = (u32)(rblock);
 	/* Check if the block is within the first block */
-	if (rbm->offset < (rbm->bi->bi_start + rbm->bi->bi_len) * GFS2_NBBY)
+	if (rbm->offset < rbm->bi->bi_len * GFS2_NBBY)
 		return 0;
 
 	/* Adjust for the size diff between gfs2_meta_header and gfs2_rgrp */
-- 
cgit 


From 7e230f5774336c5c180d8aeab0e2cb1326c73fa3 Mon Sep 17 00:00:00 2001
From: Bob Peterson <rpeterso@redhat.com>
Date: Wed, 11 Sep 2013 13:44:02 -0500
Subject: GFS2: introduce bi_blocks for optimization

This patch introduces a new field in the bitmap structure called
bi_blocks. Its purpose is to save us from constantly multiplying
bi_len by the constant GFS2_NBBY. It also paves the way for more
optimization in a future patch.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---
 fs/gfs2/incore.h | 1 +
 fs/gfs2/rgrp.c   | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index 26aabd7caba7..f1a3243dfaf2 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -71,6 +71,7 @@ struct gfs2_bitmap {
 	u32 bi_offset;
 	u32 bi_start;
 	u32 bi_len;
+	u32 bi_blocks;
 };
 
 struct gfs2_rgrpd {
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 7a6fa03bb32a..7d64a27683d9 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -262,7 +262,7 @@ static int gfs2_rbm_from_block(struct gfs2_rbm *rbm, u64 block)
 	rbm->bi = rbm->rgd->rd_bits;
 	rbm->offset = (u32)(rblock);
 	/* Check if the block is within the first block */
-	if (rbm->offset < rbm->bi->bi_len * GFS2_NBBY)
+	if (rbm->offset < rbm->bi->bi_blocks)
 		return 0;
 
 	/* Adjust for the size diff between gfs2_meta_header and gfs2_rgrp */
@@ -743,18 +743,21 @@ static int compute_bitstructs(struct gfs2_rgrpd *rgd)
 			bi->bi_offset = sizeof(struct gfs2_rgrp);
 			bi->bi_start = 0;
 			bi->bi_len = bytes;
+			bi->bi_blocks = bytes * GFS2_NBBY;
 		/* header block */
 		} else if (x == 0) {
 			bytes = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_rgrp);
 			bi->bi_offset = sizeof(struct gfs2_rgrp);
 			bi->bi_start = 0;
 			bi->bi_len = bytes;
+			bi->bi_blocks = bytes * GFS2_NBBY;
 		/* last block */
 		} else if (x + 1 == length) {
 			bytes = bytes_left;
 			bi->bi_offset = sizeof(struct gfs2_meta_header);
 			bi->bi_start = rgd->rd_bitbytes - bytes_left;
 			bi->bi_len = bytes;
+			bi->bi_blocks = bytes * GFS2_NBBY;
 		/* other blocks */
 		} else {
 			bytes = sdp->sd_sb.sb_bsize -
@@ -762,6 +765,7 @@ static int compute_bitstructs(struct gfs2_rgrpd *rgd)
 			bi->bi_offset = sizeof(struct gfs2_meta_header);
 			bi->bi_start = rgd->rd_bitbytes - bytes_left;
 			bi->bi_len = bytes;
+			bi->bi_blocks = bytes * GFS2_NBBY;
 		}
 
 		bytes_left -= bytes;
-- 
cgit 


From b8708905199a85eebbd820f98d18e045c32077bf Mon Sep 17 00:00:00 2001
From: Bob Peterson <rpeterso@redhat.com>
Date: Wed, 11 Sep 2013 13:44:05 -0500
Subject: GFS2: Do not reset flags on active reservations

When we used try locks for rgrps on block allocations, it was important
to clear the flags field so that we used a blocking hold on the glock.
Now that we're not doing try locks, clearing flags is unnecessary, and
a waste of time. In fact, it's probably doing the wrong thing because
it clears the GL_SKIP bit that was set for the lvb tracking purposes.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---
 fs/gfs2/rgrp.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 7d64a27683d9..8e5003820aa7 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -1825,7 +1825,6 @@ int gfs2_inplace_reserve(struct gfs2_inode *ip, u32 requested, u32 aflags)
 		return -EINVAL;
 	if (gfs2_rs_active(rs)) {
 		begin = rs->rs_rbm.rgd;
-		flags = 0; /* Yoda: Do or do not. There is no try */
 	} else if (ip->i_rgd && rgrp_contains_block(ip->i_rgd, ip->i_goal)) {
 		rs->rs_rbm.rgd = begin = ip->i_rgd;
 	} else {
-- 
cgit 


From 136dfa5edae3207422a8b93347eb79e92e07cdfa Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 3 Sep 2013 11:32:24 +0200
Subject: ARM: delete mach-shark

The Shark machine sub-architecture (also known as DNARD, the
DIGITAL Network Appliance Reference Design) lacks a maintainer
able to apply and test patches to modernize the architecture.

It is suspected that the current kernel, while it compiles,
does not even boot on this machine. The listed maintainer has
expressed that he will not be able to spend any time on the
maintenance for the coming year.

So let's delete it from the kernel for now. It can always be
resurrected with git revert if maintenance is resumed.

As the VIA82c505 PCI adapter was only used by this
architecture, that gets deleted too.

Cc: arm@kernel.org
Cc: Alexander Schulz <alex@shark-linux.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/Kconfig                               |  20 --
 arch/arm/Makefile                              |   1 -
 arch/arm/boot/compressed/Makefile              |   4 -
 arch/arm/boot/compressed/head-shark.S          | 140 -------------
 arch/arm/boot/compressed/ofw-shark.c           | 260 -------------------------
 arch/arm/common/Makefile                       |   1 -
 arch/arm/common/via82c505.c                    |  83 --------
 arch/arm/configs/shark_defconfig               |  80 --------
 arch/arm/include/asm/mach/pci.h                |   4 -
 arch/arm/lib/Makefile                          |   1 -
 arch/arm/lib/io-shark.c                        |  13 --
 arch/arm/mach-shark/Makefile                   |  10 -
 arch/arm/mach-shark/Makefile.boot              |   2 -
 arch/arm/mach-shark/core.c                     | 146 --------------
 arch/arm/mach-shark/dma.c                      |  23 ---
 arch/arm/mach-shark/include/mach/debug-macro.S |  34 ----
 arch/arm/mach-shark/include/mach/entry-macro.S |  36 ----
 arch/arm/mach-shark/include/mach/framebuffer.h |  16 --
 arch/arm/mach-shark/include/mach/hardware.h    |  16 --
 arch/arm/mach-shark/include/mach/irqs.h        |  13 --
 arch/arm/mach-shark/include/mach/isa-dma.h     |  13 --
 arch/arm/mach-shark/include/mach/memory.h      |  26 ---
 arch/arm/mach-shark/include/mach/timex.h       |   7 -
 arch/arm/mach-shark/include/mach/uncompress.h  |  50 -----
 arch/arm/mach-shark/irq.c                      | 108 ----------
 arch/arm/mach-shark/leds.c                     | 117 -----------
 arch/arm/mach-shark/pci.c                      |  57 ------
 27 files changed, 1281 deletions(-)
 delete mode 100644 arch/arm/boot/compressed/head-shark.S
 delete mode 100644 arch/arm/boot/compressed/ofw-shark.c
 delete mode 100644 arch/arm/common/via82c505.c
 delete mode 100644 arch/arm/configs/shark_defconfig
 delete mode 100644 arch/arm/lib/io-shark.c
 delete mode 100644 arch/arm/mach-shark/Makefile
 delete mode 100644 arch/arm/mach-shark/Makefile.boot
 delete mode 100644 arch/arm/mach-shark/core.c
 delete mode 100644 arch/arm/mach-shark/dma.c
 delete mode 100644 arch/arm/mach-shark/include/mach/debug-macro.S
 delete mode 100644 arch/arm/mach-shark/include/mach/entry-macro.S
 delete mode 100644 arch/arm/mach-shark/include/mach/framebuffer.h
 delete mode 100644 arch/arm/mach-shark/include/mach/hardware.h
 delete mode 100644 arch/arm/mach-shark/include/mach/irqs.h
 delete mode 100644 arch/arm/mach-shark/include/mach/isa-dma.h
 delete mode 100644 arch/arm/mach-shark/include/mach/memory.h
 delete mode 100644 arch/arm/mach-shark/include/mach/timex.h
 delete mode 100644 arch/arm/mach-shark/include/mach/uncompress.h
 delete mode 100644 arch/arm/mach-shark/irq.c
 delete mode 100644 arch/arm/mach-shark/leds.c
 delete mode 100644 arch/arm/mach-shark/pci.c

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3f7714d8d2d2..2b8faa337e8b 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -824,20 +824,6 @@ config ARCH_EXYNOS
 	help
 	  Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5)
 
-config ARCH_SHARK
-	bool "Shark"
-	select ARCH_USES_GETTIMEOFFSET
-	select CPU_SA110
-	select ISA
-	select ISA_DMA
-	select NEED_MACH_MEMORY_H
-	select PCI
-	select VIRT_TO_BUS
-	select ZONE_DMA
-	help
-	  Support for the StrongARM based Digital DNARD machine, also known
-	  as "Shark" (<http://www.shark-linux.de/shark.html>).
-
 config ARCH_DAVINCI
 	bool "TI DaVinci"
 	select ARCH_HAS_HOLES_MEMORYMODEL
@@ -1431,12 +1417,6 @@ config PCI_NANOENGINE
 config PCI_SYSCALL
 	def_bool PCI
 
-# Select the host bridge type
-config PCI_HOST_VIA82C505
-	bool
-	depends on PCI && ARCH_SHARK
-	default y
-
 config PCI_HOST_ITE8152
 	bool
 	depends on PCI && MACH_ARMCORE
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index a37a50f575a2..92a90fefddec 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -188,7 +188,6 @@ machine-$(CONFIG_ARCH_S5P64X0)		+= s5p64x0
 machine-$(CONFIG_ARCH_S5PC100)		+= s5pc100
 machine-$(CONFIG_ARCH_S5PV210)		+= s5pv210
 machine-$(CONFIG_ARCH_SA1100)		+= sa1100
-machine-$(CONFIG_ARCH_SHARK)		+= shark
 machine-$(CONFIG_ARCH_SHMOBILE) 	+= shmobile
 machine-$(CONFIG_ARCH_SHMOBILE_MULTI) 	+= shmobile
 machine-$(CONFIG_ARCH_SIRF)		+= prima2
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index 7ac1610252ba..e7190bb5998e 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -44,10 +44,6 @@ ifeq ($(CONFIG_ARCH_ACORN),y)
 OBJS		+= ll_char_wr.o font.o
 endif
 
-ifeq ($(CONFIG_ARCH_SHARK),y)
-OBJS		+= head-shark.o ofw-shark.o
-endif
-
 ifeq ($(CONFIG_ARCH_SA1100),y)
 OBJS		+= head-sa1100.o
 endif
diff --git a/arch/arm/boot/compressed/head-shark.S b/arch/arm/boot/compressed/head-shark.S
deleted file mode 100644
index 92b56897ed64..000000000000
--- a/arch/arm/boot/compressed/head-shark.S
+++ /dev/null
@@ -1,140 +0,0 @@
-/* The head-file for the Shark
- * by Alexander Schulz
- *
- * Does the following:
- * - get the memory layout from firmware. This can only be done as long as the mmu
- *   is still on.
- * - switch the mmu off, so we have physical addresses
- * - copy the kernel to 0x08508000. This is done to have a fixed address where the
- *   C-parts (misc.c) are executed. This address must be known at compile-time,
- *   but the load-address of the kernel depends on how much memory is installed.
- * - Jump to this location.
- * - Set r8 with 0, r7 with the architecture ID for head.S
- */
-
-#include <linux/linkage.h>
-
-#include <asm/assembler.h>
-	
-		.section	".start", "ax"
-
-		.arch armv4
-		b	__beginning
-	
-__ofw_data:	.long	0				@ the number of memory blocks
-		.space  128				@ (startaddr,size) ...
-		.space  128				@ bootargs
-		.align
-
-__beginning:	mov	r4, r0				@ save the entry to the firmware
-
-		mov	r0, #0xC0			@ disable irq and fiq
-		mov	r1, r0
-		mrs	r3, cpsr
-		bic	r2, r3, r0
-		eor	r2, r2, r1
-		msr	cpsr_c, r2
-
-		mov	r0, r4				@ get the Memory layout from firmware
-		adr	r1, __ofw_data
-		add	r2, r1, #4
-		mov	lr, pc
-		b	ofw_init
-		mov	r1, #0
-
-		adr	r2, __mmu_off			@ calculate physical address
-		sub	r2, r2, #0xf0000000		@ openprom maps us at f000 virt, 0e50 phys
-		adr	r0, __ofw_data
-		ldr	r0, [r0, #4]
-		add	r2, r2, r0
-		add	r2, r2, #0x00500000
-
-		mrc	p15, 0, r3, c1, c0
-		bic	r3, r3, #0xC			@ Write Buffer and DCache
-		bic	r3, r3, #0x1000			@ ICache
-		mcr	p15, 0, r3, c1, c0		@ disabled
-
-		mov	r0, #0
-		mcr	p15, 0, r0, c7, c7		@ flush I,D caches on v4
-		mcr	p15, 0, r0, c7, c10, 4		@ drain write buffer on v4
-		mcr	p15, 0, r0, c8, c7		@ flush I,D TLBs on v4
-
-		bic	r3, r3, #0x1			@ MMU
-		mcr	p15, 0, r3, c1, c0		@ disabled
-
-		mov	pc, r2
-
-__copy_target:	.long	0x08507FFC
-__copy_end:	.long	0x08607FFC
-		
-		.word	_start
-		.word	__bss_start
-
-		.align
-__temp_stack:	.space 128
-
-__mmu_off:
-		adr	r0, __ofw_data			@ read the 1. entry of the memory map
-		ldr	r0, [r0, #4]
-		orr	r0, r0, #0x00600000
-		sub	r0, r0, #4
-	
-		ldr	r1, __copy_end
-		ldr	r3, __copy_target
-
-/* r0 = 0x0e600000 (current end of kernelcode)
- * r3 = 0x08508000 (where it should begin)
- * r1 = 0x08608000 (end of copying area, 1MB)
- * The kernel is compressed, so 1 MB should be enough.
- * copy the kernel to the beginning of physical memory
- * We start from the highest address, so we can copy
- * from 0x08500000 to 0x08508000 if we have only 8MB
- */
-
-/* As we get more 2.6-kernels it gets more and more
- * uncomfortable to be bound to kernel images of 1MB only.
- * So we add a loop here, to be able to copy some more.
- * Alexander Schulz 2005-07-17
- */
-
-		mov	r4, #3				@ How many megabytes to copy
-
-
-__MoveCode:	sub	r4, r4, #1
-	
-__Copy:		ldr	r2, [r0], #-4
-		str	r2, [r1], #-4
-		teq	r1, r3
-		bne	__Copy
-
-		/* The firmware maps us in blocks of 1 MB, the next block is
-		   _below_ the last one. So our decrementing source pointer
-		   ist right here, but the destination pointer must be increased
-		   by 2 MB */
-		add	r1, r1, #0x00200000
-		add	r3, r3, #0x00100000
-
-		teq	r4, #0
-		bne	__MoveCode
-
-
-		/* and jump to it */
-		adr	r2, __go_on			@ where we want to jump
-		adr	r0, __ofw_data			@ read the 1. entry of the memory map
-		ldr	r0, [r0, #4]
-		sub	r2, r2, r0			@ we are mapped add 0e50 now, sub that (-0e00)
-		sub	r2, r2, #0x00500000		@ -0050
-		ldr	r0, __copy_target		@ and add 0850 8000 instead
-		add	r0, r0, #4
-		add	r2, r2, r0
-		mov	pc, r2				@ and jump there
-
-__go_on:
-		adr	sp, __temp_stack
-		add	sp, sp, #128
-		adr	r0, __ofw_data
-		mov	lr, pc
-		b	create_params
-	
-		mov	r8, #0
-		mov	r7, #15
diff --git a/arch/arm/boot/compressed/ofw-shark.c b/arch/arm/boot/compressed/ofw-shark.c
deleted file mode 100644
index 465c54b6b128..000000000000
--- a/arch/arm/boot/compressed/ofw-shark.c
+++ /dev/null
@@ -1,260 +0,0 @@
-/*
- * linux/arch/arm/boot/compressed/ofw-shark.c
- *
- * by Alexander Schulz
- *
- * This file is used to get some basic information
- * about the memory layout of the shark we are running
- * on. Memory is usually divided in blocks a 8 MB.
- * And bootargs are copied from OpenFirmware.
- */
-
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <asm/setup.h>
-#include <asm/page.h>
-
-
-asmlinkage void
-create_params (unsigned long *buffer)
-{
-	/* Is there a better address? Also change in mach-shark/core.c */
-	struct tag *tag = (struct tag *) 0x08003000;
-	int j,i,m,k,nr_banks,size;
-	unsigned char *c;
-
-	k = 0;
-
-	/* Head of the taglist */
-	tag->hdr.tag  = ATAG_CORE;
-	tag->hdr.size = tag_size(tag_core);
-	tag->u.core.flags = 1;
-	tag->u.core.pagesize = PAGE_SIZE;
-	tag->u.core.rootdev = 0;
-
-	/* Build up one tagged block for each memory region */
-	size=0;
-	nr_banks=(unsigned int) buffer[0];
-	for (j=0;j<nr_banks;j++){
-		/* search the lowest address and put it into the next entry   */
-		/* not a fast sort algorithm, but there are at most 8 entries */
-		/* and this is used only once anyway                          */
-		m=0xffffffff;
-		for (i=0;i<(unsigned int) buffer[0];i++){
-			if (buffer[2*i+1]<m) {
-				m=buffer[2*i+1];
-				k=i;
-			}
-		}
-	  
-		tag = tag_next(tag);
-		tag->hdr.tag = ATAG_MEM;
-		tag->hdr.size = tag_size(tag_mem32);
-		tag->u.mem.size = buffer[2*k+2];
-		tag->u.mem.start = buffer[2*k+1];
-
-		size += buffer[2*k+2];
-
-		buffer[2*k+1]=0xffffffff;                    /* mark as copied */
-	}
-	
-	/* The command line */
-	tag = tag_next(tag);
-	tag->hdr.tag = ATAG_CMDLINE;
-	
-	c=(unsigned char *)(&buffer[34]);
-	j=0;
-	while (*c) tag->u.cmdline.cmdline[j++]=*c++;
-
-	tag->u.cmdline.cmdline[j]=0;
-	tag->hdr.size = (j + 7 + sizeof(struct tag_header)) >> 2;
-
-	/* Hardware revision */
-	tag = tag_next(tag);
-	tag->hdr.tag = ATAG_REVISION;
-	tag->hdr.size = tag_size(tag_revision);
-	tag->u.revision.rev = ((unsigned char) buffer[33])-'0';
-
-	/* End of the taglist */
-	tag = tag_next(tag);
-	tag->hdr.tag = 0;
-	tag->hdr.size = 0;
-}
-
-
-typedef int (*ofw_handle_t)(void *);
-
-/* Everything below is called with a wrong MMU setting.
- * This means: no string constants, no initialization of
- * arrays, no global variables! This is ugly but I didn't
- * want to write this in assembler :-)
- */
-
-int
-of_decode_int(const unsigned char *p)
-{
-	unsigned int i = *p++ << 8;
-	i = (i + *p++) << 8;
-	i = (i + *p++) << 8;
-	return (i + *p);
-}
-  
-int
-OF_finddevice(ofw_handle_t openfirmware, char *name)
-{
-	unsigned int args[8];
-	char service[12];
-
-	service[0]='f';
-	service[1]='i';
-	service[2]='n';
-	service[3]='d';
-	service[4]='d';
-	service[5]='e';
-	service[6]='v';
-	service[7]='i';
-	service[8]='c';
-	service[9]='e';
-	service[10]='\0';
-
-	args[0]=(unsigned int)service;
-	args[1]=1;
-	args[2]=1;
-	args[3]=(unsigned int)name;
-
-	if (openfirmware(args) == -1)
-		return -1;
-	return args[4];
-}
-
-int
-OF_getproplen(ofw_handle_t openfirmware, int handle, char *prop)
-{
-	unsigned int args[8];
-	char service[12];
-
-	service[0]='g';
-	service[1]='e';
-	service[2]='t';
-	service[3]='p';
-	service[4]='r';
-	service[5]='o';
-	service[6]='p';
-	service[7]='l';
-	service[8]='e';
-	service[9]='n';
-	service[10]='\0';
-
-	args[0] = (unsigned int)service;
-	args[1] = 2;
-	args[2] = 1;
-	args[3] = (unsigned int)handle;
-	args[4] = (unsigned int)prop;
-
-	if (openfirmware(args) == -1)
-		return -1;
-	return args[5];
-}
-  
-int
-OF_getprop(ofw_handle_t openfirmware, int handle, char *prop, void *buf, unsigned int buflen)
-{
-	unsigned int args[8];
-	char service[8];
-
-	service[0]='g';
-	service[1]='e';
-	service[2]='t';
-	service[3]='p';
-	service[4]='r';
-	service[5]='o';
-	service[6]='p';
-	service[7]='\0';
-
-	args[0] = (unsigned int)service;
-	args[1] = 4;
-	args[2] = 1;
-	args[3] = (unsigned int)handle;
-	args[4] = (unsigned int)prop;
-	args[5] = (unsigned int)buf;
-	args[6] = buflen;
-
-	if (openfirmware(args) == -1)
-		return -1;
-	return args[7];
-}
-  
-asmlinkage void ofw_init(ofw_handle_t o, int *nomr, int *pointer)
-{
-	int phandle,i,mem_len,buffer[32];
-	char temp[15];
-  
-	temp[0]='/';
-	temp[1]='m';
-	temp[2]='e';
-	temp[3]='m';
-	temp[4]='o';
-	temp[5]='r';
-	temp[6]='y';
-	temp[7]='\0';
-
-	phandle=OF_finddevice(o,temp);
-
-	temp[0]='r';
-	temp[1]='e';
-	temp[2]='g';
-	temp[3]='\0';
-
-	mem_len = OF_getproplen(o,phandle, temp);
-	OF_getprop(o,phandle, temp, buffer, mem_len);
-	*nomr=mem_len >> 3;
-
-	for (i=0; i<=mem_len/4; i++) pointer[i]=of_decode_int((const unsigned char *)&buffer[i]);
-
-	temp[0]='/';
-	temp[1]='c';
-	temp[2]='h';
-	temp[3]='o';
-	temp[4]='s';
-	temp[5]='e';
-	temp[6]='n';
-	temp[7]='\0';
-
-	phandle=OF_finddevice(o,temp);
-
-	temp[0]='b';
-	temp[1]='o';
-	temp[2]='o';
-	temp[3]='t';
-	temp[4]='a';
-	temp[5]='r';
-	temp[6]='g';
-	temp[7]='s';
-	temp[8]='\0';
-
-	mem_len = OF_getproplen(o,phandle, temp);
-	OF_getprop(o,phandle, temp, buffer, mem_len);
-	if (mem_len > 128) mem_len=128;
-	for (i=0; i<=mem_len/4; i++) pointer[i+33]=buffer[i];
-	pointer[i+33]=0;
-
-	temp[0]='/';
-	temp[1]='\0';
-	phandle=OF_finddevice(o,temp);
-	temp[0]='b';
-	temp[1]='a';
-	temp[2]='n';
-	temp[3]='n';
-	temp[4]='e';
-	temp[5]='r';
-	temp[6]='-';
-	temp[7]='n';
-	temp[8]='a';
-	temp[9]='m';
-	temp[10]='e';
-	temp[11]='\0';
-	mem_len = OF_getproplen(o,phandle, temp);
-	OF_getprop(o,phandle, temp, buffer, mem_len);
-	* ((unsigned char *) &pointer[32]) = ((unsigned char *) buffer)[mem_len-2];
-}
diff --git a/arch/arm/common/Makefile b/arch/arm/common/Makefile
index 8c60f473e976..eaa9cf4705a7 100644
--- a/arch/arm/common/Makefile
+++ b/arch/arm/common/Makefile
@@ -6,7 +6,6 @@ obj-y				+= firmware.o
 
 obj-$(CONFIG_ICST)		+= icst.o
 obj-$(CONFIG_SA1111)		+= sa1111.o
-obj-$(CONFIG_PCI_HOST_VIA82C505) += via82c505.o
 obj-$(CONFIG_DMABOUNCE)		+= dmabounce.o
 obj-$(CONFIG_SHARP_LOCOMO)	+= locomo.o
 obj-$(CONFIG_SHARP_PARAM)	+= sharpsl_param.o
diff --git a/arch/arm/common/via82c505.c b/arch/arm/common/via82c505.c
deleted file mode 100644
index 6cb362e56d29..000000000000
--- a/arch/arm/common/via82c505.c
+++ /dev/null
@@ -1,83 +0,0 @@
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/interrupt.h>
-#include <linux/mm.h>
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <linux/io.h>
-
-
-#include <asm/mach/pci.h>
-
-#define MAX_SLOTS		7
-
-#define CONFIG_CMD(bus, devfn, where)   (0x80000000 | (bus->number << 16) | (devfn << 8) | (where & ~3))
-
-static int
-via82c505_read_config(struct pci_bus *bus, unsigned int devfn, int where,
-		      int size, u32 *value)
-{
-	outl(CONFIG_CMD(bus,devfn,where),0xCF8);
-	switch (size) {
-	case 1:
-		*value=inb(0xCFC + (where&3));
-		break;
-	case 2:
-		*value=inw(0xCFC + (where&2));
-		break;
-	case 4:
-		*value=inl(0xCFC);
-		break;
-	}
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static int
-via82c505_write_config(struct pci_bus *bus, unsigned int devfn, int where,
-		       int size, u32 value)
-{
-	outl(CONFIG_CMD(bus,devfn,where),0xCF8);
-	switch (size) {
-	case 1:
-		outb(value, 0xCFC + (where&3));
-		break;
-	case 2:
-		outw(value, 0xCFC + (where&2));
-		break;
-	case 4:
-		outl(value, 0xCFC);
-		break;
-	}
-	return PCIBIOS_SUCCESSFUL;
-}
-
-struct pci_ops via82c505_ops = {
-	.read	= via82c505_read_config,
-	.write	= via82c505_write_config,
-};
-
-void __init via82c505_preinit(void)
-{
-	printk(KERN_DEBUG "PCI: VIA 82c505\n");
-	if (!request_region(0xA8,2,"via config")) {
-		printk(KERN_WARNING"VIA 82c505: Unable to request region 0xA8\n");
-		return;
-	}
-	if (!request_region(0xCF8,8,"pci config")) {
-		printk(KERN_WARNING"VIA 82c505: Unable to request region 0xCF8\n");
-		release_region(0xA8, 2);
-		return;
-	}
-
-	/* Enable compatible Mode */
-	outb(0x96,0xA8);
-	outb(0x18,0xA9);
-	outb(0x93,0xA8);
-	outb(0xd0,0xA9);
-
-}
-
-int __init via82c505_setup(int nr, struct pci_sys_data *sys)
-{
-	return (nr == 0);
-}
diff --git a/arch/arm/configs/shark_defconfig b/arch/arm/configs/shark_defconfig
deleted file mode 100644
index e319b2c56f11..000000000000
--- a/arch/arm/configs/shark_defconfig
+++ /dev/null
@@ -1,80 +0,0 @@
-CONFIG_EXPERIMENTAL=y
-# CONFIG_LOCALVERSION_AUTO is not set
-CONFIG_SYSVIPC=y
-CONFIG_LOG_BUF_SHIFT=14
-CONFIG_SYSFS_DEPRECATED_V2=y
-CONFIG_SLAB=y
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-CONFIG_MODULE_FORCE_UNLOAD=y
-# CONFIG_BLK_DEV_BSG is not set
-CONFIG_ARCH_SHARK=y
-CONFIG_LEDS=y
-CONFIG_LEDS_TIMER=y
-CONFIG_ZBOOT_ROM_TEXT=0x0
-CONFIG_ZBOOT_ROM_BSS=0x0
-CONFIG_FPE_NWFPE=y
-CONFIG_NET=y
-CONFIG_PACKET=y
-CONFIG_UNIX=y
-CONFIG_INET=y
-# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
-# CONFIG_INET_XFRM_MODE_TUNNEL is not set
-# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
-# CONFIG_INET_DIAG is not set
-# CONFIG_IPV6 is not set
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
-# CONFIG_STANDALONE is not set
-# CONFIG_FIRMWARE_IN_KERNEL is not set
-CONFIG_PARPORT=m
-CONFIG_PARPORT_PC=m
-CONFIG_BLK_DEV_LOOP=y
-CONFIG_BLK_DEV_RAM=y
-CONFIG_IDE=y
-CONFIG_BLK_DEV_IDECD=m
-CONFIG_SCSI=m
-CONFIG_BLK_DEV_SD=m
-CONFIG_CHR_DEV_ST=m
-CONFIG_BLK_DEV_SR=m
-CONFIG_CHR_DEV_SG=m
-CONFIG_NETDEVICES=y
-CONFIG_NET_ETHERNET=y
-CONFIG_NET_PCI=y
-CONFIG_CS89x0=y
-# CONFIG_SERIO_SERPORT is not set
-CONFIG_SERIAL_8250=y
-CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_PRINTER=m
-# CONFIG_HWMON is not set
-CONFIG_FB=y
-CONFIG_FB_CYBER2000=y
-# CONFIG_VGA_CONSOLE is not set
-CONFIG_FRAMEBUFFER_CONSOLE=y
-CONFIG_LOGO=y
-# CONFIG_LOGO_LINUX_MONO is not set
-# CONFIG_LOGO_LINUX_VGA16 is not set
-CONFIG_SOUND=m
-CONFIG_SOUND_PRIME=m
-CONFIG_SOUND_OSS=m
-CONFIG_SOUND_SB=m
-CONFIG_RTC_CLASS=y
-CONFIG_RTC_DRV_CMOS=y
-CONFIG_EXT2_FS=y
-CONFIG_EXT3_FS=y
-CONFIG_ISO9660_FS=m
-CONFIG_JOLIET=y
-CONFIG_MSDOS_FS=m
-CONFIG_VFAT_FS=m
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-CONFIG_NFSD=m
-CONFIG_PARTITION_ADVANCED=y
-CONFIG_NLS_CODEPAGE_437=m
-CONFIG_NLS_CODEPAGE_850=m
-CONFIG_NLS_ISO8859_1=m
-# CONFIG_ENABLE_MUST_CHECK is not set
-CONFIG_DEBUG_KERNEL=y
-# CONFIG_SCHED_DEBUG is not set
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_DEBUG_USER=y
diff --git a/arch/arm/include/asm/mach/pci.h b/arch/arm/include/asm/mach/pci.h
index 454d642a4070..7fc42784becb 100644
--- a/arch/arm/include/asm/mach/pci.h
+++ b/arch/arm/include/asm/mach/pci.h
@@ -106,8 +106,4 @@ extern int dc21285_setup(int nr, struct pci_sys_data *);
 extern void dc21285_preinit(void);
 extern void dc21285_postinit(void);
 
-extern struct pci_ops via82c505_ops;
-extern int via82c505_setup(int nr, struct pci_sys_data *);
-extern void via82c505_init(void *sysdata);
-
 #endif /* __ASM_MACH_PCI_H */
diff --git a/arch/arm/lib/Makefile b/arch/arm/lib/Makefile
index bd454b09133e..47d7338561de 100644
--- a/arch/arm/lib/Makefile
+++ b/arch/arm/lib/Makefile
@@ -41,7 +41,6 @@ else
 endif
 
 lib-$(CONFIG_ARCH_RPC)		+= ecard.o io-acorn.o floppydma.o
-lib-$(CONFIG_ARCH_SHARK)	+= io-shark.o
 
 $(obj)/csumpartialcopy.o:	$(obj)/csumpartialcopygeneric.S
 $(obj)/csumpartialcopyuser.o:	$(obj)/csumpartialcopygeneric.S
diff --git a/arch/arm/lib/io-shark.c b/arch/arm/lib/io-shark.c
deleted file mode 100644
index 824253948f51..000000000000
--- a/arch/arm/lib/io-shark.c
+++ /dev/null
@@ -1,13 +0,0 @@
-/*
- *  linux/arch/arm/lib/io-shark.c
- *
- *  by Alexander Schulz
- *
- * derived from:
- * linux/arch/arm/lib/io-ebsa.S
- * Copyright (C) 1995, 1996 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
diff --git a/arch/arm/mach-shark/Makefile b/arch/arm/mach-shark/Makefile
deleted file mode 100644
index 29657183c452..000000000000
--- a/arch/arm/mach-shark/Makefile
+++ /dev/null
@@ -1,10 +0,0 @@
-#
-# Makefile for the linux kernel.
-#
-
-# Object file lists.
-
-obj-y			:= core.o dma.o irq.o pci.o leds.o
-obj-m			:=
-obj-n			:=
-obj-			:=
diff --git a/arch/arm/mach-shark/Makefile.boot b/arch/arm/mach-shark/Makefile.boot
deleted file mode 100644
index e40e24e4ca34..000000000000
--- a/arch/arm/mach-shark/Makefile.boot
+++ /dev/null
@@ -1,2 +0,0 @@
-   zreladdr-y	+= 0x08008000
-
diff --git a/arch/arm/mach-shark/core.c b/arch/arm/mach-shark/core.c
deleted file mode 100644
index 1d32c5e8eab6..000000000000
--- a/arch/arm/mach-shark/core.c
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
- *  linux/arch/arm/mach-shark/arch.c
- *
- *  Architecture specific stuff.
- */
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/sched.h>
-#include <linux/serial_8250.h>
-#include <linux/io.h>
-#include <linux/cpu.h>
-#include <linux/reboot.h>
-
-#include <asm/setup.h>
-#include <asm/mach-types.h>
-#include <asm/param.h>
-#include <asm/system_misc.h>
-
-#include <asm/mach/map.h>
-#include <asm/mach/arch.h>
-#include <asm/mach/time.h>
-
-#define ROMCARD_SIZE            0x08000000
-#define ROMCARD_START           0x10000000
-
-static void shark_restart(enum reboot_mode mode, const char *cmd)
-{
-        short temp;
-        /* Reset the Machine via pc[3] of the sequoia chipset */
-        outw(0x09,0x24);
-        temp=inw(0x26);
-        temp = temp | (1<<3) | (1<<10);
-        outw(0x09,0x24);
-        outw(temp,0x26);
-}
-
-static struct plat_serial8250_port serial_platform_data[] = {
-	{
-		.iobase		= 0x3f8,
-		.irq		= 4,
-		.uartclk	= 1843200,
-		.regshift	= 0,
-		.iotype		= UPIO_PORT,
-		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
-	},
-	{
-		.iobase		= 0x2f8,
-		.irq		= 3,
-		.uartclk	= 1843200,
-		.regshift	= 0,
-		.iotype		= UPIO_PORT,
-		.flags		= UPF_BOOT_AUTOCONF | UPF_SKIP_TEST,
-	},
-	{ },
-};
-
-static struct platform_device serial_device = {
-	.name			= "serial8250",
-	.id			= PLAT8250_DEV_PLATFORM,
-	.dev			= {
-		.platform_data	= serial_platform_data,
-	},
-};
-
-static struct resource rtc_resources[] = {
-	[0] = {
-		.start	= 0x70,
-		.end	= 0x73,
-		.flags	= IORESOURCE_IO,
-	},
-	[1] = {
-		.start	= IRQ_ISA_RTC_ALARM,
-		.end	= IRQ_ISA_RTC_ALARM,
-		.flags	= IORESOURCE_IRQ,
-	}
-};
-
-static struct platform_device rtc_device = {
-	.name		= "rtc_cmos",
-	.id		= -1,
-	.resource	= rtc_resources,
-	.num_resources	= ARRAY_SIZE(rtc_resources),
-};
-
-static int __init shark_init(void)
-{
-	int ret;
-
-	if (machine_is_shark())
-	{
-	        ret = platform_device_register(&rtc_device);
-		if (ret) printk(KERN_ERR "Unable to register RTC device: %d\n", ret);
-		ret = platform_device_register(&serial_device);
-		if (ret) printk(KERN_ERR "Unable to register Serial device: %d\n", ret);
-	}
-	return 0;
-}
-
-arch_initcall(shark_init);
-
-extern void shark_init_irq(void);
-
-#define IRQ_TIMER 0
-#define HZ_TIME ((1193180 + HZ/2) / HZ)
-
-static irqreturn_t
-shark_timer_interrupt(int irq, void *dev_id)
-{
-	timer_tick();
-	return IRQ_HANDLED;
-}
-
-static struct irqaction shark_timer_irq = {
-	.name		= "Shark Timer Tick",
-	.flags		= IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
-	.handler	= shark_timer_interrupt,
-};
-
-/*
- * Set up timer interrupt, and return the current time in seconds.
- */
-static void __init shark_timer_init(void)
-{
-	outb(0x34, 0x43);               /* binary, mode 0, LSB/MSB, Ch 0 */
-	outb(HZ_TIME & 0xff, 0x40);     /* LSB of count */
-	outb(HZ_TIME >> 8, 0x40);
-
-	setup_irq(IRQ_TIMER, &shark_timer_irq);
-}
-
-static void shark_init_early(void)
-{
-	cpu_idle_poll_ctrl(true);
-}
-
-MACHINE_START(SHARK, "Shark")
-	/* Maintainer: Alexander Schulz */
-	.atag_offset	= 0x3000,
-	.init_early	= shark_init_early,
-	.init_irq	= shark_init_irq,
-	.init_time	= shark_timer_init,
-	.dma_zone_size	= SZ_4M,
-	.restart	= shark_restart,
-MACHINE_END
diff --git a/arch/arm/mach-shark/dma.c b/arch/arm/mach-shark/dma.c
deleted file mode 100644
index 10b5b8b3272a..000000000000
--- a/arch/arm/mach-shark/dma.c
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- *  linux/arch/arm/mach-shark/dma.c
- *
- *  by Alexander Schulz
- *
- *  derived from:
- *  arch/arm/kernel/dma-ebsa285.c
- *  Copyright (C) 1998 Phil Blundell
- */
-
-#include <linux/init.h>
-
-#include <asm/dma.h>
-#include <asm/mach/dma.h>
-
-static int __init shark_dma_init(void)
-{
-#ifdef CONFIG_ISA_DMA
-	isa_init_dma();
-#endif
-	return 0;
-}
-core_initcall(shark_dma_init);
diff --git a/arch/arm/mach-shark/include/mach/debug-macro.S b/arch/arm/mach-shark/include/mach/debug-macro.S
deleted file mode 100644
index d129119a3f69..000000000000
--- a/arch/arm/mach-shark/include/mach/debug-macro.S
+++ /dev/null
@@ -1,34 +0,0 @@
-/* arch/arm/mach-shark/include/mach/debug-macro.S
- *
- * Debugging macro include header
- *
- *  Copyright (C) 1994-1999 Russell King
- *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
-*/
-
-		.macro	addruart, rp, rv, tmp
-		mov	\rp, #0x3f8
-		orr	\rv, \rp, #0xfe000000
-		orr	\rv, \rv, #0x00e00000
-		orr	\rp, \rp, #0x40000000
-		.endm
-
-		.macro	senduart,rd,rx
-		strb	\rd, [\rx]
-		.endm
-
-		.macro waituart,rd,rx
-		.endm
-
-		.macro	busyuart,rd,rx
-		mov	\rd, #0
-1001:		add	\rd, \rd, #1
-		teq	\rd, #0x10000
-		bne	1001b
-		.endm
-
diff --git a/arch/arm/mach-shark/include/mach/entry-macro.S b/arch/arm/mach-shark/include/mach/entry-macro.S
deleted file mode 100644
index c9e49f049532..000000000000
--- a/arch/arm/mach-shark/include/mach/entry-macro.S
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * arch/arm/mach-shark/include/mach/entry-macro.S
- *
- * Low-level IRQ helper macros for Shark platform
- *
- * This file is licensed under  the terms of the GNU General Public
- * License version 2. This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- */
-		.macro  get_irqnr_preamble, base, tmp
-		mov	\base, #0xfe000000
-		orr	\base, \base, #0x00e00000
-		.endm
-
-		.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
-
-		mov	\irqstat, #0x0C
-		strb	\irqstat, [\base, #0x20]	@outb(0x0C, 0x20) /* Poll command */
-		ldrb	\irqnr, [\base, #0x20]		@irq = inb(0x20) & 7
-		and	\irqstat, \irqnr, #0x80
-		teq	\irqstat, #0
-		beq	43f
-		and	\irqnr, \irqnr, #7
-		teq	\irqnr, #2
-		bne	44f
-43:		mov	\irqstat, #0x0C
-		strb	\irqstat, [\base, #0xa0]	@outb(0x0C, 0xA0) /* Poll command */
-		ldrb	\irqnr, [\base, #0xa0]		@irq = (inb(0xA0) & 7) + 8
-		and	\irqstat, \irqnr, #0x80
-		teq	\irqstat, #0
-		beq	44f
-		and	\irqnr, \irqnr, #7
-		add	\irqnr, \irqnr, #8
-44:		teq	\irqstat, #0
-		.endm
-
diff --git a/arch/arm/mach-shark/include/mach/framebuffer.h b/arch/arm/mach-shark/include/mach/framebuffer.h
deleted file mode 100644
index 84a5bf6e5ba3..000000000000
--- a/arch/arm/mach-shark/include/mach/framebuffer.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/*
- * arch/arm/mach-shark/include/mach/framebuffer.h
- *
- * by Alexander Schulz
- *
- */
-
-#ifndef __ASM_ARCH_FRAMEBUFFER_H
-#define __ASM_ARCH_FRAMEBUFFER_H
-
-/* defines for the Framebuffer */
-#define FB_START		0x06000000
-#define FB_SIZE			0x01000000
-
-#endif
-
diff --git a/arch/arm/mach-shark/include/mach/hardware.h b/arch/arm/mach-shark/include/mach/hardware.h
deleted file mode 100644
index 663f952a8ab3..000000000000
--- a/arch/arm/mach-shark/include/mach/hardware.h
+++ /dev/null
@@ -1,16 +0,0 @@
-/*
- * arch/arm/mach-shark/include/mach/hardware.h
- *
- * by Alexander Schulz
- *
- * derived from:
- * arch/arm/mach-ebsa110/include/mach/hardware.h
- * Copyright (C) 1996-1999 Russell King.
- */
-#ifndef __ASM_ARCH_HARDWARE_H
-#define __ASM_ARCH_HARDWARE_H
-
-#define UNCACHEABLE_ADDR        0xdf010000
-
-#endif
-
diff --git a/arch/arm/mach-shark/include/mach/irqs.h b/arch/arm/mach-shark/include/mach/irqs.h
deleted file mode 100644
index c8e8a4e1f61a..000000000000
--- a/arch/arm/mach-shark/include/mach/irqs.h
+++ /dev/null
@@ -1,13 +0,0 @@
-/*
- * arch/arm/mach-shark/include/mach/irqs.h
- *
- * by Alexander Schulz
- */
-
-#define NR_IRQS			16
-
-#define IRQ_ISA_KEYBOARD	 1
-#define IRQ_ISA_RTC_ALARM	 8
-#define I8042_KBD_IRQ		 1
-#define I8042_AUX_IRQ		12
-#define IRQ_HARDDISK            14
diff --git a/arch/arm/mach-shark/include/mach/isa-dma.h b/arch/arm/mach-shark/include/mach/isa-dma.h
deleted file mode 100644
index 96c43b8f8dda..000000000000
--- a/arch/arm/mach-shark/include/mach/isa-dma.h
+++ /dev/null
@@ -1,13 +0,0 @@
-/*
- * arch/arm/mach-shark/include/mach/isa-dma.h
- *
- * by Alexander Schulz
- */
-#ifndef __ASM_ARCH_DMA_H
-#define __ASM_ARCH_DMA_H
-
-#define MAX_DMA_CHANNELS	8
-#define DMA_ISA_CASCADE         4
-
-#endif /* _ASM_ARCH_DMA_H */
-
diff --git a/arch/arm/mach-shark/include/mach/memory.h b/arch/arm/mach-shark/include/mach/memory.h
deleted file mode 100644
index 1cf8d6962617..000000000000
--- a/arch/arm/mach-shark/include/mach/memory.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * arch/arm/mach-shark/include/mach/memory.h
- *
- * by Alexander Schulz
- *
- * derived from:
- * arch/arm/mach-ebsa110/include/mach/memory.h
- * Copyright (c) 1996-1999 Russell King.
- */
-#ifndef __ASM_ARCH_MEMORY_H
-#define __ASM_ARCH_MEMORY_H
-
-#include <asm/sizes.h>
-
-/*
- * Physical DRAM offset.
- */
-#define PLAT_PHYS_OFFSET     UL(0x08000000)
-
-/*
- * Cache flushing area
- */
-#define FLUSH_BASE_PHYS		0x80000000
-#define FLUSH_BASE		0xdf000000
-
-#endif
diff --git a/arch/arm/mach-shark/include/mach/timex.h b/arch/arm/mach-shark/include/mach/timex.h
deleted file mode 100644
index bb6eeaebed86..000000000000
--- a/arch/arm/mach-shark/include/mach/timex.h
+++ /dev/null
@@ -1,7 +0,0 @@
-/*
- * arch/arm/mach-shark/include/mach/timex.h
- *
- * by Alexander Schulz
- */
-
-#define CLOCK_TICK_RATE 1193180
diff --git a/arch/arm/mach-shark/include/mach/uncompress.h b/arch/arm/mach-shark/include/mach/uncompress.h
deleted file mode 100644
index a168435aecc9..000000000000
--- a/arch/arm/mach-shark/include/mach/uncompress.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * arch/arm/mach-shark/include/mach/uncompress.h
- * by Alexander Schulz
- *
- * derived from:
- * arch/arm/mach-footbridge/include/mach/uncompress.h
- * Copyright (C) 1996,1997,1998 Russell King
- */
-
-#define SERIAL_BASE ((volatile unsigned char *)0x400003f8)
-
-static inline void putc(int c)
-{
-	volatile int t;
-
-	SERIAL_BASE[0] = c;
-	t=0x10000;
-	while (t--);
-}
-
-static inline void flush(void)
-{
-}
-
-#ifdef DEBUG
-static void putn(unsigned long z)
-{
-	int i;
-	char x;
-
-	putc('0');
-	putc('x');
-	for (i=0;i<8;i++) {
-		x='0'+((z>>((7-i)*4))&0xf);
-		if (x>'9') x=x-'0'+'A'-10;
-		putc(x);
-	}
-}
-
-static void putr()
-{
-	putc('\n');
-	putc('\r');
-}
-#endif
-
-/*
- * nothing to do
- */
-#define arch_decomp_setup()
diff --git a/arch/arm/mach-shark/irq.c b/arch/arm/mach-shark/irq.c
deleted file mode 100644
index 5dce13e429f3..000000000000
--- a/arch/arm/mach-shark/irq.c
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
- *  linux/arch/arm/mach-shark/irq.c
- *
- * by Alexander Schulz
- *
- * derived from linux/arch/ppc/kernel/i8259.c and:
- * arch/arm/mach-ebsa110/include/mach/irq.h
- * Copyright (C) 1996-1998 Russell King
- */
-
-#include <linux/init.h>
-#include <linux/fs.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-
-#include <asm/irq.h>
-#include <asm/mach/irq.h>
-
-/*
- * 8259A PIC functions to handle ISA devices:
- */
-
-/*
- * This contains the irq mask for both 8259A irq controllers,
- * Let through the cascade-interrupt no. 2 (ff-(1<<2)==fb)
- */
-static unsigned char cached_irq_mask[2] = { 0xfb, 0xff };
-
-/*
- * These have to be protected by the irq controller spinlock
- * before being called.
- */
-static void shark_disable_8259A_irq(struct irq_data *d)
-{
-	unsigned int mask;
-	if (d->irq<8) {
-	  mask = 1 << d->irq;
-	  cached_irq_mask[0] |= mask;
-	  outb(cached_irq_mask[1],0xA1);
-	} else {
-	  mask = 1 << (d->irq-8);
-	  cached_irq_mask[1] |= mask;
-	  outb(cached_irq_mask[0],0x21);
-	}
-}
-
-static void shark_enable_8259A_irq(struct irq_data *d)
-{
-	unsigned int mask;
-	if (d->irq<8) {
-	  mask = ~(1 << d->irq);
-	  cached_irq_mask[0] &= mask;
-	  outb(cached_irq_mask[0],0x21);
-	} else {
-	  mask = ~(1 << (d->irq-8));
-	  cached_irq_mask[1] &= mask;
-	  outb(cached_irq_mask[1],0xA1);
-	}
-}
-
-static void shark_ack_8259A_irq(struct irq_data *d){}
-
-static irqreturn_t bogus_int(int irq, void *dev_id)
-{
-	printk("Got interrupt %i!\n",irq);
-	return IRQ_NONE;
-}
-
-static struct irqaction cascade;
-
-static struct irq_chip fb_chip = {
-	.name		= "XT-PIC",
-	.irq_ack	= shark_ack_8259A_irq,
-	.irq_mask	= shark_disable_8259A_irq,
-	.irq_unmask	= shark_enable_8259A_irq,
-};
-
-void __init shark_init_irq(void)
-{
-	int irq;
-
-	for (irq = 0; irq < NR_IRQS; irq++) {
-		irq_set_chip_and_handler(irq, &fb_chip, handle_edge_irq);
-		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
-	}
-
-	/* init master interrupt controller */
-	outb(0x11, 0x20); /* Start init sequence, edge triggered (level: 0x19)*/
-	outb(0x00, 0x21); /* Vector base */
-	outb(0x04, 0x21); /* Cascade (slave) on IRQ2 */
-	outb(0x03, 0x21); /* Select 8086 mode , auto eoi*/
-	outb(0x0A, 0x20);
-	/* init slave interrupt controller */
-	outb(0x11, 0xA0); /* Start init sequence, edge triggered */
-	outb(0x08, 0xA1); /* Vector base */
-	outb(0x02, 0xA1); /* Cascade (slave) on IRQ2 */
-	outb(0x03, 0xA1); /* Select 8086 mode, auto eoi */
-	outb(0x0A, 0xA0);
-	outb(cached_irq_mask[1],0xA1);
-	outb(cached_irq_mask[0],0x21);
-	//request_region(0x20,0x2,"pic1");
-	//request_region(0xA0,0x2,"pic2");
-
-	cascade.handler = bogus_int;
-	cascade.name = "cascade";
-	setup_irq(2,&cascade);
-}
-
diff --git a/arch/arm/mach-shark/leds.c b/arch/arm/mach-shark/leds.c
deleted file mode 100644
index 081c778a10ac..000000000000
--- a/arch/arm/mach-shark/leds.c
+++ /dev/null
@@ -1,117 +0,0 @@
-/*
- * DIGITAL Shark LED control routines.
- *
- * Driver for the 3 user LEDs found on the Shark
- * Based on Versatile and RealView machine LED code
- *
- * License terms: GNU General Public License (GPL) version 2
- * Author: Bryan Wu <bryan.wu@canonical.com>
- */
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/ioport.h>
-#include <linux/slab.h>
-#include <linux/leds.h>
-
-#include <asm/mach-types.h>
-
-#if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
-struct shark_led {
-	struct led_classdev cdev;
-	u8 mask;
-};
-
-/*
- * The triggers lines up below will only be used if the
- * LED triggers are compiled in.
- */
-static const struct {
-	const char *name;
-	const char *trigger;
-} shark_leds[] = {
-	{ "shark:amber0", "default-on", },	/* Bit 5 */
-	{ "shark:green", "heartbeat", },	/* Bit 6 */
-	{ "shark:amber1", "cpu0" },		/* Bit 7 */
-};
-
-static u16 led_reg_read(void)
-{
-	outw(0x09, 0x24);
-	return inw(0x26);
-}
-
-static void led_reg_write(u16 value)
-{
-	outw(0x09, 0x24);
-	outw(value, 0x26);
-}
-
-static void shark_led_set(struct led_classdev *cdev,
-			      enum led_brightness b)
-{
-	struct shark_led *led = container_of(cdev,
-						 struct shark_led, cdev);
-	u16 reg = led_reg_read();
-
-	if (b != LED_OFF)
-		reg |= led->mask;
-	else
-		reg &= ~led->mask;
-
-	led_reg_write(reg);
-}
-
-static enum led_brightness shark_led_get(struct led_classdev *cdev)
-{
-	struct shark_led *led = container_of(cdev,
-						 struct shark_led, cdev);
-	u16 reg = led_reg_read();
-
-	return (reg & led->mask) ? LED_FULL : LED_OFF;
-}
-
-static int __init shark_leds_init(void)
-{
-	int i;
-	u16 reg;
-
-	if (!machine_is_shark())
-		return -ENODEV;
-
-	for (i = 0; i < ARRAY_SIZE(shark_leds); i++) {
-		struct shark_led *led;
-
-		led = kzalloc(sizeof(*led), GFP_KERNEL);
-		if (!led)
-			break;
-
-		led->cdev.name = shark_leds[i].name;
-		led->cdev.brightness_set = shark_led_set;
-		led->cdev.brightness_get = shark_led_get;
-		led->cdev.default_trigger = shark_leds[i].trigger;
-
-		/* Count in 5 bits offset */
-		led->mask = BIT(i + 5);
-
-		if (led_classdev_register(NULL, &led->cdev) < 0) {
-			kfree(led);
-			break;
-		}
-	}
-
-	/* Make LEDs independent of power-state */
-	request_region(0x24, 4, "led_reg");
-	reg = led_reg_read();
-	reg |= 1 << 10;
-	led_reg_write(reg);
-
-	return 0;
-}
-
-/*
- * Since we may have triggers on any subsystem, defer registration
- * until after subsystem_init.
- */
-fs_initcall(shark_leds_init);
-#endif
diff --git a/arch/arm/mach-shark/pci.c b/arch/arm/mach-shark/pci.c
deleted file mode 100644
index 6d91a914c1dd..000000000000
--- a/arch/arm/mach-shark/pci.c
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- *  linux/arch/arm/mach-shark/pci.c
- *
- *  PCI bios-type initialisation for PCI machines
- *
- *  Bits taken from various places.
- */
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/init.h>
-#include <linux/io.h>
-#include <video/vga.h>
-
-#include <asm/irq.h>
-#include <asm/mach/pci.h>
-#include <asm/mach-types.h>
-
-#define IO_START	0x40000000
-
-static int __init shark_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-{
-	if (dev->bus->number == 0)
-		if (dev->devfn == 0)
-			return 255;
-		else
-			return 11;
-	else
-		return 255;
-}
-
-extern void __init via82c505_preinit(void);
-
-static struct hw_pci shark_pci __initdata = {
-	.setup		= via82c505_setup,
-	.map_irq	= shark_map_irq,
-	.nr_controllers = 1,
-	.ops		= &via82c505_ops,
-	.preinit	= via82c505_preinit,
-};
-
-static int __init shark_pci_init(void)
-{
-	if (!machine_is_shark())
-		return -ENODEV;
-
-	pcibios_min_io = 0x6000;
-	pcibios_min_mem = 0x50000000;
-	vga_base = 0xe8000000;
-
-	pci_ioremap_io(0, IO_START);
-
-	pci_common_init(&shark_pci);
-
-	return 0;
-}
-
-subsys_initcall(shark_pci_init);
-- 
cgit 


From 35ee2f99f25a9a7ed53418ecb576273f6ff71470 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 3 Sep 2013 11:37:18 +0200
Subject: MAINTAINERS: delete Shark machine entry

This reflects the fact that the Shark machine has been deleted
as an ARM sub-architecture.

Cc: arm@kernel.org
Cc: Alexander Schulz <alex@shark-linux.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 MAINTAINERS | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index e61c2e83fc2b..b95ebade6c02 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1142,11 +1142,6 @@ F:	drivers/net/ethernet/i825xx/ether1*
 F:	drivers/net/ethernet/seeq/ether3*
 F:	drivers/scsi/arm/
 
-ARM/SHARK MACHINE SUPPORT
-M:	Alexander Schulz <alex@shark-linux.de>
-W:	http://www.shark-linux.de/shark.html
-S:	Maintained
-
 ARM/SAMSUNG ARM ARCHITECTURES
 M:	Ben Dooks <ben-linux@fluff.org>
 M:	Kukjin Kim <kgene.kim@samsung.com>
-- 
cgit 


From fcb20f15167dc33336cb53724ef67255db8401b4 Mon Sep 17 00:00:00 2001
From: Punit Agrawal <punit.agrawal@arm.com>
Date: Thu, 22 Aug 2013 11:34:25 +0100
Subject: ARM: dts: Improve CCI bindings documentation

Improve the description of the value types used in the CCI binding.

Cc: devicetree@vger.kernel.org
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 Documentation/devicetree/bindings/arm/cci.txt | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/arm/cci.txt b/Documentation/devicetree/bindings/arm/cci.txt
index 92d36e2aa877..024c03df051a 100644
--- a/Documentation/devicetree/bindings/arm/cci.txt
+++ b/Documentation/devicetree/bindings/arm/cci.txt
@@ -36,14 +36,18 @@ specific to ARM.
 
 	- reg
 		Usage: required
-		Value type: <prop-encoded-array>
+		Value type: Integer cells. A register entry, expressed as a pair
+			    of cells, containing base and size.
 		Definition: A standard property. Specifies base physical
 			    address of CCI control registers common to all
 			    interfaces.
 
 	- ranges:
 		Usage: required
-		Value type: <prop-encoded-array>
+		Value type: Integer cells. An array of range entries, expressed
+			    as a tuple of cells, containing child address,
+			    parent address and the size of the region in the
+			    child address space.
 		Definition: A standard property. Follow rules in the ePAPR for
 			    hierarchical bus addressing. CCI interfaces
 			    addresses refer to the parent node addressing
@@ -74,7 +78,9 @@ specific to ARM.
 
 		- reg:
 			Usage: required
-			Value type: <prop-encoded-array>
+			Value type: Integer cells. A register entry, expressed
+				    as a pair of cells, containing base and
+				    size.
 			Definition: the base address and size of the
 				    corresponding interface programming
 				    registers.
-- 
cgit 


From 83bc10a2754bf9f2e373fb884dd63ac061453187 Mon Sep 17 00:00:00 2001
From: Punit Agrawal <punit.agrawal@arm.com>
Date: Thu, 22 Aug 2013 14:43:18 +0100
Subject: ARM: dts: Document the CCI PMU DT bindings

The CCI PMU can profile bus transactions at the master and slave
interfaces of the CCI. The PMU can be used to observe an aggregated
view of the bus traffic between the various components connected to the
CCI.

Introduce a binding for the CCI PMU. The PMU node will be a sub-node of
the CCI node.

Cc: devicetree@vger.kernel.org
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 Documentation/devicetree/bindings/arm/cci.txt | 48 ++++++++++++++++++++++++++-
 1 file changed, 47 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/arm/cci.txt b/Documentation/devicetree/bindings/arm/cci.txt
index 024c03df051a..f28d82bbbc56 100644
--- a/Documentation/devicetree/bindings/arm/cci.txt
+++ b/Documentation/devicetree/bindings/arm/cci.txt
@@ -85,6 +85,42 @@ specific to ARM.
 				    corresponding interface programming
 				    registers.
 
+	- CCI PMU node
+
+		Parent node must be CCI interconnect node.
+
+		A CCI pmu node must contain the following properties:
+
+		- compatible
+			Usage: required
+			Value type: <string>
+			Definition: must be "arm,cci-400-pmu"
+
+		- reg:
+			Usage: required
+			Value type: Integer cells. A register entry, expressed
+				    as a pair of cells, containing base and
+				    size.
+			Definition: the base address and size of the
+				    corresponding interface programming
+				    registers.
+
+		- interrupts:
+			Usage: required
+			Value type: Integer cells. Array of interrupt specifier
+				    entries, as defined in
+				    ../interrupt-controller/interrupts.txt.
+			Definition: list of counter overflow interrupts, one per
+				    counter. The interrupts must be specified
+				    starting with the cycle counter overflow
+				    interrupt, followed by counter0 overflow
+				    interrupt, counter1 overflow interrupt,...
+				    ,counterN overflow interrupt.
+
+				    The CCI PMU has an interrupt signal for each
+				    counter. The number of interrupts must be
+				    equal to the number of counters.
+
 * CCI interconnect bus masters
 
 	Description: masters in the device tree connected to a CCI port
@@ -150,7 +186,7 @@ Example:
 		#address-cells = <1>;
 		#size-cells = <1>;
 		reg = <0x0 0x2c090000 0 0x1000>;
-		ranges = <0x0 0x0 0x2c090000 0x6000>;
+		ranges = <0x0 0x0 0x2c090000 0x10000>;
 
 		cci_control0: slave-if@1000 {
 			compatible = "arm,cci-400-ctrl-if";
@@ -169,6 +205,16 @@ Example:
 			interface-type = "ace";
 			reg = <0x5000 0x1000>;
 		};
+
+		pmu@9000 {
+			 compatible = "arm,cci-400-pmu";
+			 reg = <0x9000 0x5000>;
+			 interrupts = <0 101 4>,
+				      <0 102 4>,
+				      <0 103 4>,
+				      <0 104 4>,
+				      <0 105 4>;
+		};
 	};
 
 This CCI node corresponds to a CCI component whose control registers sits
-- 
cgit 


From b91c8f284acc2cb2aa43a1ce58322573ad983a14 Mon Sep 17 00:00:00 2001
From: Punit Agrawal <punit.agrawal@arm.com>
Date: Thu, 22 Aug 2013 14:41:51 +0100
Subject: drivers: CCI: add ARM CCI PMU support

Extend the existing CCI driver to support the PMU by registering a perf
backend for it.

Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Nicolas Pitre <nico@linaro.org>
Cc: Dave Martin <dave.martin@linaro.org>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Punit Agrawal <punit.agrawal@arm.com>
[will: removed broken __init annotations]
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 drivers/bus/arm-cci.c | 636 +++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 632 insertions(+), 4 deletions(-)

diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c
index 200926699778..dc6528e8b8fb 100644
--- a/drivers/bus/arm-cci.c
+++ b/drivers/bus/arm-cci.c
@@ -18,11 +18,21 @@
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
 #include <linux/slab.h>
+#include <linux/spinlock.h>
 
 #include <asm/cacheflush.h>
+#include <asm/irq_regs.h>
+#include <asm/pmu.h>
 #include <asm/smp_plat.h>
 
+#define DRIVER_NAME		"CCI-400"
+#define DRIVER_NAME_PMU		DRIVER_NAME " PMU"
+#define PMU_NAME		"CCI_400"
+
 #define CCI_PORT_CTRL		0x0
 #define CCI_CTRL_STATUS		0xc
 
@@ -54,6 +64,587 @@ static unsigned int nb_cci_ports;
 static void __iomem *cci_ctrl_base;
 static unsigned long cci_ctrl_phys;
 
+#ifdef CONFIG_HW_PERF_EVENTS
+
+#define CCI_PMCR		0x0100
+#define CCI_PID2		0x0fe8
+
+#define CCI_PMCR_CEN		0x00000001
+#define CCI_PMCR_NCNT_MASK	0x0000f800
+#define CCI_PMCR_NCNT_SHIFT	11
+
+#define CCI_PID2_REV_MASK	0xf0
+#define CCI_PID2_REV_SHIFT	4
+
+/* Port ids */
+#define CCI_PORT_S0	0
+#define CCI_PORT_S1	1
+#define CCI_PORT_S2	2
+#define CCI_PORT_S3	3
+#define CCI_PORT_S4	4
+#define CCI_PORT_M0	5
+#define CCI_PORT_M1	6
+#define CCI_PORT_M2	7
+
+#define CCI_REV_R0		0
+#define CCI_REV_R1		1
+#define CCI_REV_R0_P4		4
+#define CCI_REV_R1_P2		6
+
+#define CCI_PMU_EVT_SEL		0x000
+#define CCI_PMU_CNTR		0x004
+#define CCI_PMU_CNTR_CTRL	0x008
+#define CCI_PMU_OVRFLW		0x00c
+
+#define CCI_PMU_OVRFLW_FLAG	1
+
+#define CCI_PMU_CNTR_BASE(idx)	((idx) * SZ_4K)
+
+/*
+ * Instead of an event id to monitor CCI cycles, a dedicated counter is
+ * provided. Use 0xff to represent CCI cycles and hope that no future revisions
+ * make use of this event in hardware.
+ */
+enum cci400_perf_events {
+	CCI_PMU_CYCLES = 0xff
+};
+
+#define CCI_PMU_EVENT_MASK		0xff
+#define CCI_PMU_EVENT_SOURCE(event)	((event >> 5) & 0x7)
+#define CCI_PMU_EVENT_CODE(event)	(event & 0x1f)
+
+#define CCI_PMU_MAX_HW_EVENTS 5   /* CCI PMU has 4 counters + 1 cycle counter */
+
+#define CCI_PMU_CYCLE_CNTR_IDX		0
+#define CCI_PMU_CNTR0_IDX		1
+#define CCI_PMU_CNTR_LAST(cci_pmu)	(CCI_PMU_CYCLE_CNTR_IDX + cci_pmu->num_events - 1)
+
+/*
+ * CCI PMU event id is an 8-bit value made of two parts - bits 7:5 for one of 8
+ * ports and bits 4:0 are event codes. There are different event codes
+ * associated with each port type.
+ *
+ * Additionally, the range of events associated with the port types changed
+ * between Rev0 and Rev1.
+ *
+ * The constants below define the range of valid codes for each port type for
+ * the different revisions and are used to validate the event to be monitored.
+ */
+
+#define CCI_REV_R0_SLAVE_PORT_MIN_EV	0x00
+#define CCI_REV_R0_SLAVE_PORT_MAX_EV	0x13
+#define CCI_REV_R0_MASTER_PORT_MIN_EV	0x14
+#define CCI_REV_R0_MASTER_PORT_MAX_EV	0x1a
+
+#define CCI_REV_R1_SLAVE_PORT_MIN_EV	0x00
+#define CCI_REV_R1_SLAVE_PORT_MAX_EV	0x14
+#define CCI_REV_R1_MASTER_PORT_MIN_EV	0x00
+#define CCI_REV_R1_MASTER_PORT_MAX_EV	0x11
+
+struct pmu_port_event_ranges {
+	u8 slave_min;
+	u8 slave_max;
+	u8 master_min;
+	u8 master_max;
+};
+
+static struct pmu_port_event_ranges port_event_range[] = {
+	[CCI_REV_R0] = {
+		.slave_min = CCI_REV_R0_SLAVE_PORT_MIN_EV,
+		.slave_max = CCI_REV_R0_SLAVE_PORT_MAX_EV,
+		.master_min = CCI_REV_R0_MASTER_PORT_MIN_EV,
+		.master_max = CCI_REV_R0_MASTER_PORT_MAX_EV,
+	},
+	[CCI_REV_R1] = {
+		.slave_min = CCI_REV_R1_SLAVE_PORT_MIN_EV,
+		.slave_max = CCI_REV_R1_SLAVE_PORT_MAX_EV,
+		.master_min = CCI_REV_R1_MASTER_PORT_MIN_EV,
+		.master_max = CCI_REV_R1_MASTER_PORT_MAX_EV,
+	},
+};
+
+struct cci_pmu_drv_data {
+	void __iomem *base;
+	struct arm_pmu *cci_pmu;
+	int nr_irqs;
+	int irqs[CCI_PMU_MAX_HW_EVENTS];
+	unsigned long active_irqs;
+	struct perf_event *events[CCI_PMU_MAX_HW_EVENTS];
+	unsigned long used_mask[BITS_TO_LONGS(CCI_PMU_MAX_HW_EVENTS)];
+	struct pmu_port_event_ranges *port_ranges;
+	struct pmu_hw_events hw_events;
+};
+static struct cci_pmu_drv_data *pmu;
+
+static bool is_duplicate_irq(int irq, int *irqs, int nr_irqs)
+{
+	int i;
+
+	for (i = 0; i < nr_irqs; i++)
+		if (irq == irqs[i])
+			return true;
+
+	return false;
+}
+
+static int probe_cci_revision(void)
+{
+	int rev;
+	rev = readl_relaxed(cci_ctrl_base + CCI_PID2) & CCI_PID2_REV_MASK;
+	rev >>= CCI_PID2_REV_SHIFT;
+
+	if (rev <= CCI_REV_R0_P4)
+		return CCI_REV_R0;
+	else if (rev <= CCI_REV_R1_P2)
+		return CCI_REV_R1;
+
+	return -ENOENT;
+}
+
+static struct pmu_port_event_ranges *port_range_by_rev(void)
+{
+	int rev = probe_cci_revision();
+
+	if (rev < 0)
+		return NULL;
+
+	return &port_event_range[rev];
+}
+
+static int pmu_is_valid_slave_event(u8 ev_code)
+{
+	return pmu->port_ranges->slave_min <= ev_code &&
+		ev_code <= pmu->port_ranges->slave_max;
+}
+
+static int pmu_is_valid_master_event(u8 ev_code)
+{
+	return pmu->port_ranges->master_min <= ev_code &&
+		ev_code <= pmu->port_ranges->master_max;
+}
+
+static int pmu_validate_hw_event(u8 hw_event)
+{
+	u8 ev_source = CCI_PMU_EVENT_SOURCE(hw_event);
+	u8 ev_code = CCI_PMU_EVENT_CODE(hw_event);
+
+	switch (ev_source) {
+	case CCI_PORT_S0:
+	case CCI_PORT_S1:
+	case CCI_PORT_S2:
+	case CCI_PORT_S3:
+	case CCI_PORT_S4:
+		/* Slave Interface */
+		if (pmu_is_valid_slave_event(ev_code))
+			return hw_event;
+		break;
+	case CCI_PORT_M0:
+	case CCI_PORT_M1:
+	case CCI_PORT_M2:
+		/* Master Interface */
+		if (pmu_is_valid_master_event(ev_code))
+			return hw_event;
+		break;
+	}
+
+	return -ENOENT;
+}
+
+static int pmu_is_valid_counter(struct arm_pmu *cci_pmu, int idx)
+{
+	return CCI_PMU_CYCLE_CNTR_IDX <= idx &&
+		idx <= CCI_PMU_CNTR_LAST(cci_pmu);
+}
+
+static u32 pmu_read_register(int idx, unsigned int offset)
+{
+	return readl_relaxed(pmu->base + CCI_PMU_CNTR_BASE(idx) + offset);
+}
+
+static void pmu_write_register(u32 value, int idx, unsigned int offset)
+{
+	return writel_relaxed(value, pmu->base + CCI_PMU_CNTR_BASE(idx) + offset);
+}
+
+static void pmu_disable_counter(int idx)
+{
+	pmu_write_register(0, idx, CCI_PMU_CNTR_CTRL);
+}
+
+static void pmu_enable_counter(int idx)
+{
+	pmu_write_register(1, idx, CCI_PMU_CNTR_CTRL);
+}
+
+static void pmu_set_event(int idx, unsigned long event)
+{
+	event &= CCI_PMU_EVENT_MASK;
+	pmu_write_register(event, idx, CCI_PMU_EVT_SEL);
+}
+
+static u32 pmu_get_max_counters(void)
+{
+	u32 n_cnts = (readl_relaxed(cci_ctrl_base + CCI_PMCR) &
+		      CCI_PMCR_NCNT_MASK) >> CCI_PMCR_NCNT_SHIFT;
+
+	/* add 1 for cycle counter */
+	return n_cnts + 1;
+}
+
+static struct pmu_hw_events *pmu_get_hw_events(void)
+{
+	return &pmu->hw_events;
+}
+
+static int pmu_get_event_idx(struct pmu_hw_events *hw, struct perf_event *event)
+{
+	struct arm_pmu *cci_pmu = to_arm_pmu(event->pmu);
+	struct hw_perf_event *hw_event = &event->hw;
+	unsigned long cci_event = hw_event->config_base & CCI_PMU_EVENT_MASK;
+	int idx;
+
+	if (cci_event == CCI_PMU_CYCLES) {
+		if (test_and_set_bit(CCI_PMU_CYCLE_CNTR_IDX, hw->used_mask))
+			return -EAGAIN;
+
+		return CCI_PMU_CYCLE_CNTR_IDX;
+	}
+
+	for (idx = CCI_PMU_CNTR0_IDX; idx <= CCI_PMU_CNTR_LAST(cci_pmu); ++idx)
+		if (!test_and_set_bit(idx, hw->used_mask))
+			return idx;
+
+	/* No counters available */
+	return -EAGAIN;
+}
+
+static int pmu_map_event(struct perf_event *event)
+{
+	int mapping;
+	u8 config = event->attr.config & CCI_PMU_EVENT_MASK;
+
+	if (event->attr.type < PERF_TYPE_MAX)
+		return -ENOENT;
+
+	if (config == CCI_PMU_CYCLES)
+		mapping = config;
+	else
+		mapping = pmu_validate_hw_event(config);
+
+	return mapping;
+}
+
+static int pmu_request_irq(struct arm_pmu *cci_pmu, irq_handler_t handler)
+{
+	int i;
+	struct platform_device *pmu_device = cci_pmu->plat_device;
+
+	if (unlikely(!pmu_device))
+		return -ENODEV;
+
+	if (pmu->nr_irqs < 1) {
+		dev_err(&pmu_device->dev, "no irqs for CCI PMUs defined\n");
+		return -ENODEV;
+	}
+
+	/*
+	 * Register all available CCI PMU interrupts. In the interrupt handler
+	 * we iterate over the counters checking for interrupt source (the
+	 * overflowing counter) and clear it.
+	 *
+	 * This should allow handling of non-unique interrupt for the counters.
+	 */
+	for (i = 0; i < pmu->nr_irqs; i++) {
+		int err = request_irq(pmu->irqs[i], handler, IRQF_SHARED,
+				"arm-cci-pmu", cci_pmu);
+		if (err) {
+			dev_err(&pmu_device->dev, "unable to request IRQ%d for ARM CCI PMU counters\n",
+				pmu->irqs[i]);
+			return err;
+		}
+
+		set_bit(i, &pmu->active_irqs);
+	}
+
+	return 0;
+}
+
+static irqreturn_t pmu_handle_irq(int irq_num, void *dev)
+{
+	unsigned long flags;
+	struct arm_pmu *cci_pmu = (struct arm_pmu *)dev;
+	struct pmu_hw_events *events = cci_pmu->get_hw_events();
+	struct perf_sample_data data;
+	struct pt_regs *regs;
+	int idx, handled = IRQ_NONE;
+
+	raw_spin_lock_irqsave(&events->pmu_lock, flags);
+	regs = get_irq_regs();
+	/*
+	 * Iterate over counters and update the corresponding perf events.
+	 * This should work regardless of whether we have per-counter overflow
+	 * interrupt or a combined overflow interrupt.
+	 */
+	for (idx = CCI_PMU_CYCLE_CNTR_IDX; idx <= CCI_PMU_CNTR_LAST(cci_pmu); idx++) {
+		struct perf_event *event = events->events[idx];
+		struct hw_perf_event *hw_counter;
+
+		if (!event)
+			continue;
+
+		hw_counter = &event->hw;
+
+		/* Did this counter overflow? */
+		if (!pmu_read_register(idx, CCI_PMU_OVRFLW) & CCI_PMU_OVRFLW_FLAG)
+			continue;
+
+		pmu_write_register(CCI_PMU_OVRFLW_FLAG, idx, CCI_PMU_OVRFLW);
+
+		handled = IRQ_HANDLED;
+
+		armpmu_event_update(event);
+		perf_sample_data_init(&data, 0, hw_counter->last_period);
+		if (!armpmu_event_set_period(event))
+			continue;
+
+		if (perf_event_overflow(event, &data, regs))
+			cci_pmu->disable(event);
+	}
+	raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
+
+	return IRQ_RETVAL(handled);
+}
+
+static void pmu_free_irq(struct arm_pmu *cci_pmu)
+{
+	int i;
+
+	for (i = 0; i < pmu->nr_irqs; i++) {
+		if (!test_and_clear_bit(i, &pmu->active_irqs))
+			continue;
+
+		free_irq(pmu->irqs[i], cci_pmu);
+	}
+}
+
+static void pmu_enable_event(struct perf_event *event)
+{
+	unsigned long flags;
+	struct arm_pmu *cci_pmu = to_arm_pmu(event->pmu);
+	struct pmu_hw_events *events = cci_pmu->get_hw_events();
+	struct hw_perf_event *hw_counter = &event->hw;
+	int idx = hw_counter->idx;
+
+	if (unlikely(!pmu_is_valid_counter(cci_pmu, idx))) {
+		dev_err(&cci_pmu->plat_device->dev, "Invalid CCI PMU counter %d\n", idx);
+		return;
+	}
+
+	raw_spin_lock_irqsave(&events->pmu_lock, flags);
+
+	/* Configure the event to count, unless you are counting cycles */
+	if (idx != CCI_PMU_CYCLE_CNTR_IDX)
+		pmu_set_event(idx, hw_counter->config_base);
+
+	pmu_enable_counter(idx);
+
+	raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
+}
+
+static void pmu_disable_event(struct perf_event *event)
+{
+	struct arm_pmu *cci_pmu = to_arm_pmu(event->pmu);
+	struct hw_perf_event *hw_counter = &event->hw;
+	int idx = hw_counter->idx;
+
+	if (unlikely(!pmu_is_valid_counter(cci_pmu, idx))) {
+		dev_err(&cci_pmu->plat_device->dev, "Invalid CCI PMU counter %d\n", idx);
+		return;
+	}
+
+	pmu_disable_counter(idx);
+}
+
+static void pmu_start(struct arm_pmu *cci_pmu)
+{
+	u32 val;
+	unsigned long flags;
+	struct pmu_hw_events *events = cci_pmu->get_hw_events();
+
+	raw_spin_lock_irqsave(&events->pmu_lock, flags);
+
+	/* Enable all the PMU counters. */
+	val = readl_relaxed(cci_ctrl_base + CCI_PMCR) | CCI_PMCR_CEN;
+	writel(val, cci_ctrl_base + CCI_PMCR);
+
+	raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
+}
+
+static void pmu_stop(struct arm_pmu *cci_pmu)
+{
+	u32 val;
+	unsigned long flags;
+	struct pmu_hw_events *events = cci_pmu->get_hw_events();
+
+	raw_spin_lock_irqsave(&events->pmu_lock, flags);
+
+	/* Disable all the PMU counters. */
+	val = readl_relaxed(cci_ctrl_base + CCI_PMCR) & ~CCI_PMCR_CEN;
+	writel(val, cci_ctrl_base + CCI_PMCR);
+
+	raw_spin_unlock_irqrestore(&events->pmu_lock, flags);
+}
+
+static u32 pmu_read_counter(struct perf_event *event)
+{
+	struct arm_pmu *cci_pmu = to_arm_pmu(event->pmu);
+	struct hw_perf_event *hw_counter = &event->hw;
+	int idx = hw_counter->idx;
+	u32 value;
+
+	if (unlikely(!pmu_is_valid_counter(cci_pmu, idx))) {
+		dev_err(&cci_pmu->plat_device->dev, "Invalid CCI PMU counter %d\n", idx);
+		return 0;
+	}
+	value = pmu_read_register(idx, CCI_PMU_CNTR);
+
+	return value;
+}
+
+static void pmu_write_counter(struct perf_event *event, u32 value)
+{
+	struct arm_pmu *cci_pmu = to_arm_pmu(event->pmu);
+	struct hw_perf_event *hw_counter = &event->hw;
+	int idx = hw_counter->idx;
+
+	if (unlikely(!pmu_is_valid_counter(cci_pmu, idx)))
+		dev_err(&cci_pmu->plat_device->dev, "Invalid CCI PMU counter %d\n", idx);
+	else
+		pmu_write_register(value, idx, CCI_PMU_CNTR);
+}
+
+static int cci_pmu_init(struct arm_pmu *cci_pmu, struct platform_device *pdev)
+{
+	*cci_pmu = (struct arm_pmu){
+		.name             = PMU_NAME,
+		.max_period       = (1LLU << 32) - 1,
+		.get_hw_events    = pmu_get_hw_events,
+		.get_event_idx    = pmu_get_event_idx,
+		.map_event        = pmu_map_event,
+		.request_irq      = pmu_request_irq,
+		.handle_irq       = pmu_handle_irq,
+		.free_irq         = pmu_free_irq,
+		.enable           = pmu_enable_event,
+		.disable          = pmu_disable_event,
+		.start            = pmu_start,
+		.stop             = pmu_stop,
+		.read_counter     = pmu_read_counter,
+		.write_counter    = pmu_write_counter,
+	};
+
+	cci_pmu->plat_device = pdev;
+	cci_pmu->num_events = pmu_get_max_counters();
+
+	return armpmu_register(cci_pmu, -1);
+}
+
+static const struct of_device_id arm_cci_pmu_matches[] = {
+	{
+		.compatible = "arm,cci-400-pmu",
+	},
+	{},
+};
+
+static int cci_pmu_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	int i, ret, irq;
+
+	pmu = devm_kzalloc(&pdev->dev, sizeof(*pmu), GFP_KERNEL);
+	if (!pmu)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_warn(&pdev->dev, "Failed to get mem resource\n");
+		ret = -EINVAL;
+		goto memalloc_err;
+	};
+
+	pmu->base = devm_ioremap_resource(&pdev->dev, res);
+	if (!pmu->base) {
+		dev_warn(&pdev->dev, "Failed to ioremap\n");
+		ret = -ENOMEM;
+		goto memalloc_err;
+	}
+
+	/*
+	 * CCI PMU has 5 overflow signals - one per counter; but some may be tied
+	 * together to a common interrupt.
+	 */
+	pmu->nr_irqs = 0;
+	for (i = 0; i < CCI_PMU_MAX_HW_EVENTS; i++) {
+		irq = platform_get_irq(pdev, i);
+		if (irq < 0)
+			break;
+
+		if (is_duplicate_irq(irq, pmu->irqs, pmu->nr_irqs))
+			continue;
+
+		pmu->irqs[pmu->nr_irqs++] = irq;
+	}
+
+	/*
+	 * Ensure that the device tree has as many interrupts as the number
+	 * of counters.
+	 */
+	if (i < CCI_PMU_MAX_HW_EVENTS) {
+		dev_warn(&pdev->dev, "In-correct number of interrupts: %d, should be %d\n",
+			i, CCI_PMU_MAX_HW_EVENTS);
+		ret = -EINVAL;
+		goto memalloc_err;
+	}
+
+	pmu->port_ranges = port_range_by_rev();
+	if (!pmu->port_ranges) {
+		dev_warn(&pdev->dev, "CCI PMU version not supported\n");
+		ret = -EINVAL;
+		goto memalloc_err;
+	}
+
+	pmu->cci_pmu = devm_kzalloc(&pdev->dev, sizeof(*(pmu->cci_pmu)), GFP_KERNEL);
+	if (!pmu->cci_pmu) {
+		ret = -ENOMEM;
+		goto memalloc_err;
+	}
+
+	pmu->hw_events.events = pmu->events;
+	pmu->hw_events.used_mask = pmu->used_mask;
+	raw_spin_lock_init(&pmu->hw_events.pmu_lock);
+
+	ret = cci_pmu_init(pmu->cci_pmu, pdev);
+	if (ret)
+		goto pmuinit_err;
+
+	return 0;
+
+pmuinit_err:
+	kfree(pmu->cci_pmu);
+memalloc_err:
+	kfree(pmu);
+	return ret;
+}
+
+static int cci_platform_probe(struct platform_device *pdev)
+{
+	if (!cci_probed())
+		return -ENODEV;
+
+	return of_platform_populate(pdev->dev.of_node, NULL, NULL, &pdev->dev);
+}
+
+#endif /* CONFIG_HW_PERF_EVENTS */
+
 struct cpu_port {
 	u64 mpidr;
 	u32 port;
@@ -120,7 +711,7 @@ int cci_ace_get_port(struct device_node *dn)
 }
 EXPORT_SYMBOL_GPL(cci_ace_get_port);
 
-static void __init cci_ace_init_ports(void)
+static void cci_ace_init_ports(void)
 {
 	int port, cpu;
 	struct device_node *cpun;
@@ -386,7 +977,7 @@ static const struct of_device_id arm_cci_ctrl_if_matches[] = {
 	{},
 };
 
-static int __init cci_probe(void)
+static int cci_probe(void)
 {
 	struct cci_nb_ports const *cci_config;
 	int ret, i, nb_ace = 0, nb_ace_lite = 0;
@@ -490,7 +1081,7 @@ memalloc_err:
 static int cci_init_status = -EAGAIN;
 static DEFINE_MUTEX(cci_probing);
 
-static int __init cci_init(void)
+static int cci_init(void)
 {
 	if (cci_init_status != -EAGAIN)
 		return cci_init_status;
@@ -502,18 +1093,55 @@ static int __init cci_init(void)
 	return cci_init_status;
 }
 
+#ifdef CONFIG_HW_PERF_EVENTS
+static struct platform_driver cci_pmu_driver = {
+	.driver = {
+		   .name = DRIVER_NAME_PMU,
+		   .of_match_table = arm_cci_pmu_matches,
+		  },
+	.probe = cci_pmu_probe,
+};
+
+static struct platform_driver cci_platform_driver = {
+	.driver = {
+		   .name = DRIVER_NAME,
+		   .of_match_table = arm_cci_matches,
+		  },
+	.probe = cci_platform_probe,
+};
+
+static int __init cci_platform_init(void)
+{
+	int ret;
+
+	ret = platform_driver_register(&cci_pmu_driver);
+	if (ret)
+		return ret;
+
+	return platform_driver_register(&cci_platform_driver);
+}
+
+#else
+
+static int __init cci_platform_init(void)
+{
+	return 0;
+}
+
+#endif
 /*
  * To sort out early init calls ordering a helper function is provided to
  * check if the CCI driver has beed initialized. Function check if the driver
  * has been initialized, if not it calls the init function that probes
  * the driver and updates the return value.
  */
-bool __init cci_probed(void)
+bool cci_probed(void)
 {
 	return cci_init() == 0;
 }
 EXPORT_SYMBOL_GPL(cci_probed);
 
 early_initcall(cci_init);
+core_initcall(cci_platform_init);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("ARM CCI support");
-- 
cgit 


From 94c69f765f1b4a658d96905ec59928e3e3e07e6a Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Tue, 10 Sep 2013 15:43:41 +0800
Subject: spi: bitbang: Let spi_bitbang_start() take a reference to master

Many drivers that use bitbang library have a leak on probe error paths.
This is because once a spi_master_get() call succeeds, we need an additional
spi_master_put() call to free the memory.

Fix this issue by moving the code taking a reference to master to
spi_bitbang_start(), so spi_bitbang_start() will take a reference to master on
success. With this change, the caller is responsible for calling
spi_bitbang_stop() to decrement the reference and spi_master_put() as
counterpart of spi_alloc_master() to prevent a memory leak.

So now we have below patten for drivers using bitbang library:

probe:
spi_alloc_master        -> Init reference count to 1
spi_bitbang_start       -> Increment reference count
remove:
spi_bitbang_stop        -> Decrement reference count
spi_master_put          -> Decrement reference count (reference count reaches 0)

Fixup all users accordingly.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Suggested-by: Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
Acked-by: Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-altera.c    |  2 +-
 drivers/spi/spi-ath79.c     |  2 +-
 drivers/spi/spi-au1550.c    |  2 +-
 drivers/spi/spi-bitbang.c   | 12 +++++++++++-
 drivers/spi/spi-butterfly.c |  2 +-
 drivers/spi/spi-davinci.c   | 10 ++++------
 drivers/spi/spi-efm32.c     |  2 +-
 drivers/spi/spi-fsl-dspi.c  |  2 +-
 drivers/spi/spi-gpio.c      |  5 ++---
 drivers/spi/spi-imx.c       |  2 +-
 drivers/spi/spi-lm70llp.c   |  2 +-
 drivers/spi/spi-nuc900.c    |  3 +--
 drivers/spi/spi-oc-tiny.c   |  2 +-
 drivers/spi/spi-ppc4xx.c    |  3 ++-
 drivers/spi/spi-s3c24xx.c   |  2 +-
 drivers/spi/spi-sh-sci.c    |  2 +-
 drivers/spi/spi-sirf.c      |  2 +-
 drivers/spi/spi-xilinx.c    |  2 +-
 18 files changed, 33 insertions(+), 26 deletions(-)

diff --git a/drivers/spi/spi-altera.c b/drivers/spi/spi-altera.c
index 9a64c3fee218..595b62cb545d 100644
--- a/drivers/spi/spi-altera.c
+++ b/drivers/spi/spi-altera.c
@@ -219,7 +219,7 @@ static int altera_spi_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, hw);
 
 	/* setup the state for the bitbang driver */
-	hw->bitbang.master = spi_master_get(master);
+	hw->bitbang.master = master;
 	if (!hw->bitbang.master)
 		return err;
 	hw->bitbang.chipselect = altera_spi_chipsel;
diff --git a/drivers/spi/spi-ath79.c b/drivers/spi/spi-ath79.c
index 37bad952ab38..821bf7ac218d 100644
--- a/drivers/spi/spi-ath79.c
+++ b/drivers/spi/spi-ath79.c
@@ -231,7 +231,7 @@ static int ath79_spi_probe(struct platform_device *pdev)
 		master->num_chipselect = pdata->num_chipselect;
 	}
 
-	sp->bitbang.master = spi_master_get(master);
+	sp->bitbang.master = master;
 	sp->bitbang.chipselect = ath79_spi_chipselect;
 	sp->bitbang.txrx_word[SPI_MODE_0] = ath79_spi_txrx_mode0;
 	sp->bitbang.setup_transfer = spi_bitbang_setup_transfer;
diff --git a/drivers/spi/spi-au1550.c b/drivers/spi/spi-au1550.c
index 1d00d9b397dd..e06400a3a719 100644
--- a/drivers/spi/spi-au1550.c
+++ b/drivers/spi/spi-au1550.c
@@ -775,7 +775,7 @@ static int au1550_spi_probe(struct platform_device *pdev)
 
 	hw = spi_master_get_devdata(master);
 
-	hw->master = spi_master_get(master);
+	hw->master = master;
 	hw->pdata = dev_get_platdata(&pdev->dev);
 	hw->dev = &pdev->dev;
 
diff --git a/drivers/spi/spi-bitbang.c b/drivers/spi/spi-bitbang.c
index 8c11355dec23..0056623dfc6b 100644
--- a/drivers/spi/spi-bitbang.c
+++ b/drivers/spi/spi-bitbang.c
@@ -414,10 +414,16 @@ static int spi_bitbang_unprepare_hardware(struct spi_master *spi)
  * This routine registers the spi_master, which will process requests in a
  * dedicated task, keeping IRQs unblocked most of the time.  To stop
  * processing those requests, call spi_bitbang_stop().
+ *
+ * On success, this routine will take a reference to master. The caller is
+ * responsible for calling spi_bitbang_stop() to decrement the reference and
+ * spi_master_put() as counterpart of spi_alloc_master() to prevent a memory
+ * leak.
  */
 int spi_bitbang_start(struct spi_bitbang *bitbang)
 {
 	struct spi_master *master = bitbang->master;
+	int ret;
 
 	if (!master || !bitbang->chipselect)
 		return -EINVAL;
@@ -449,7 +455,11 @@ int spi_bitbang_start(struct spi_bitbang *bitbang)
 	/* driver may get busy before register() returns, especially
 	 * if someone registered boardinfo for devices
 	 */
-	return spi_register_master(master);
+	ret = spi_register_master(spi_master_get(master));
+	if (ret)
+		spi_master_put(master);
+
+	return 0;
 }
 EXPORT_SYMBOL_GPL(spi_bitbang_start);
 
diff --git a/drivers/spi/spi-butterfly.c b/drivers/spi/spi-butterfly.c
index 5ed08e537433..b1ecea2d76b3 100644
--- a/drivers/spi/spi-butterfly.c
+++ b/drivers/spi/spi-butterfly.c
@@ -225,7 +225,7 @@ static void butterfly_attach(struct parport *p)
 	master->bus_num = 42;
 	master->num_chipselect = 2;
 
-	pp->bitbang.master = spi_master_get(master);
+	pp->bitbang.master = master;
 	pp->bitbang.chipselect = butterfly_chipselect;
 	pp->bitbang.txrx_word[SPI_MODE_0] = butterfly_txrx_word_mode0;
 
diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
index 8fbfe2483ffd..af2bb73d0168 100644
--- a/drivers/spi/spi-davinci.c
+++ b/drivers/spi/spi-davinci.c
@@ -916,7 +916,7 @@ static int davinci_spi_probe(struct platform_device *pdev)
 	if (ret)
 		goto unmap_io;
 
-	dspi->bitbang.master = spi_master_get(master);
+	dspi->bitbang.master = master;
 	if (dspi->bitbang.master == NULL) {
 		ret = -ENODEV;
 		goto irq_free;
@@ -925,7 +925,7 @@ static int davinci_spi_probe(struct platform_device *pdev)
 	dspi->clk = clk_get(&pdev->dev, NULL);
 	if (IS_ERR(dspi->clk)) {
 		ret = -ENODEV;
-		goto put_master;
+		goto irq_free;
 	}
 	clk_prepare_enable(dspi->clk);
 
@@ -1015,8 +1015,6 @@ free_dma:
 free_clk:
 	clk_disable_unprepare(dspi->clk);
 	clk_put(dspi->clk);
-put_master:
-	spi_master_put(master);
 irq_free:
 	free_irq(dspi->irq, dspi);
 unmap_io:
@@ -1024,7 +1022,7 @@ unmap_io:
 release_region:
 	release_mem_region(dspi->pbase, resource_size(r));
 free_master:
-	kfree(master);
+	spi_master_put(master);
 err:
 	return ret;
 }
@@ -1051,11 +1049,11 @@ static int davinci_spi_remove(struct platform_device *pdev)
 
 	clk_disable_unprepare(dspi->clk);
 	clk_put(dspi->clk);
-	spi_master_put(master);
 	free_irq(dspi->irq, dspi);
 	iounmap(dspi->base);
 	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	release_mem_region(dspi->pbase, resource_size(r));
+	spi_master_put(master);
 
 	return 0;
 }
diff --git a/drivers/spi/spi-efm32.c b/drivers/spi/spi-efm32.c
index 7d84418a01d8..d428a40778c1 100644
--- a/drivers/spi/spi-efm32.c
+++ b/drivers/spi/spi-efm32.c
@@ -347,7 +347,7 @@ static int efm32_spi_probe(struct platform_device *pdev)
 
 	ddata = spi_master_get_devdata(master);
 
-	ddata->bitbang.master = spi_master_get(master);
+	ddata->bitbang.master = master;
 	ddata->bitbang.chipselect = efm32_spi_chipselect;
 	ddata->bitbang.setup_transfer = efm32_spi_setup_transfer;
 	ddata->bitbang.txrx_bufs = efm32_spi_txrx_bufs;
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index 6cd07d13ecab..d338b6722255 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -450,7 +450,7 @@ static int dspi_probe(struct platform_device *pdev)
 
 	dspi = spi_master_get_devdata(master);
 	dspi->pdev = pdev;
-	dspi->bitbang.master = spi_master_get(master);
+	dspi->bitbang.master = master;
 	dspi->bitbang.chipselect = dspi_chipselect;
 	dspi->bitbang.setup_transfer = dspi_setup_transfer;
 	dspi->bitbang.txrx_bufs = dspi_txrx_transfer;
diff --git a/drivers/spi/spi-gpio.c b/drivers/spi/spi-gpio.c
index 68b69fec13a9..14c01b44ca7a 100644
--- a/drivers/spi/spi-gpio.c
+++ b/drivers/spi/spi-gpio.c
@@ -467,7 +467,7 @@ static int spi_gpio_probe(struct platform_device *pdev)
 	}
 #endif
 
-	spi_gpio->bitbang.master = spi_master_get(master);
+	spi_gpio->bitbang.master = master;
 	spi_gpio->bitbang.chipselect = spi_gpio_chipselect;
 
 	if ((master_flags & (SPI_MASTER_NO_TX | SPI_MASTER_NO_RX)) == 0) {
@@ -486,7 +486,6 @@ static int spi_gpio_probe(struct platform_device *pdev)
 
 	status = spi_bitbang_start(&spi_gpio->bitbang);
 	if (status < 0) {
-		spi_master_put(spi_gpio->bitbang.master);
 gpio_free:
 		if (SPI_MISO_GPIO != SPI_GPIO_NO_MISO)
 			gpio_free(SPI_MISO_GPIO);
@@ -510,13 +509,13 @@ static int spi_gpio_remove(struct platform_device *pdev)
 
 	/* stop() unregisters child devices too */
 	status = spi_bitbang_stop(&spi_gpio->bitbang);
-	spi_master_put(spi_gpio->bitbang.master);
 
 	if (SPI_MISO_GPIO != SPI_GPIO_NO_MISO)
 		gpio_free(SPI_MISO_GPIO);
 	if (SPI_MOSI_GPIO != SPI_GPIO_NO_MOSI)
 		gpio_free(SPI_MOSI_GPIO);
 	gpio_free(SPI_SCK_GPIO);
+	spi_master_put(spi_gpio->bitbang.master);
 
 	return status;
 }
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index 15323d8bd9cf..02d9f468b2b6 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -786,7 +786,7 @@ static int spi_imx_probe(struct platform_device *pdev)
 	master->num_chipselect = num_cs;
 
 	spi_imx = spi_master_get_devdata(master);
-	spi_imx->bitbang.master = spi_master_get(master);
+	spi_imx->bitbang.master = master;
 
 	for (i = 0; i < master->num_chipselect; i++) {
 		int cs_gpio = of_get_named_gpio(np, "cs-gpios", i);
diff --git a/drivers/spi/spi-lm70llp.c b/drivers/spi/spi-lm70llp.c
index 0759b5db9883..41c5765be746 100644
--- a/drivers/spi/spi-lm70llp.c
+++ b/drivers/spi/spi-lm70llp.c
@@ -222,7 +222,7 @@ static void spi_lm70llp_attach(struct parport *p)
 	/*
 	 * SPI and bitbang hookup.
 	 */
-	pp->bitbang.master = spi_master_get(master);
+	pp->bitbang.master = master;
 	pp->bitbang.chipselect = lm70_chipselect;
 	pp->bitbang.txrx_word[SPI_MODE_0] = lm70_txrx;
 	pp->bitbang.flags = SPI_3WIRE;
diff --git a/drivers/spi/spi-nuc900.c b/drivers/spi/spi-nuc900.c
index 47a68b43bcd5..e0c32bc69ee2 100644
--- a/drivers/spi/spi-nuc900.c
+++ b/drivers/spi/spi-nuc900.c
@@ -349,7 +349,7 @@ static int nuc900_spi_probe(struct platform_device *pdev)
 	}
 
 	hw = spi_master_get_devdata(master);
-	hw->master = spi_master_get(master);
+	hw->master = master;
 	hw->pdata  = dev_get_platdata(&pdev->dev);
 	hw->dev = &pdev->dev;
 
@@ -435,7 +435,6 @@ err_iomap:
 	kfree(hw->ioarea);
 err_pdata:
 	spi_master_put(hw->master);
-
 err_nomem:
 	return err;
 }
diff --git a/drivers/spi/spi-oc-tiny.c b/drivers/spi/spi-oc-tiny.c
index 333cb1badcd7..91c668596202 100644
--- a/drivers/spi/spi-oc-tiny.c
+++ b/drivers/spi/spi-oc-tiny.c
@@ -306,7 +306,7 @@ static int tiny_spi_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, hw);
 
 	/* setup the state for the bitbang driver */
-	hw->bitbang.master = spi_master_get(master);
+	hw->bitbang.master = master;
 	if (!hw->bitbang.master)
 		return err;
 	hw->bitbang.setup_transfer = tiny_spi_setup_transfer;
diff --git a/drivers/spi/spi-ppc4xx.c b/drivers/spi/spi-ppc4xx.c
index 0ee53c25ba58..c57740bb70d3 100644
--- a/drivers/spi/spi-ppc4xx.c
+++ b/drivers/spi/spi-ppc4xx.c
@@ -396,7 +396,7 @@ static int spi_ppc4xx_of_probe(struct platform_device *op)
 	master->dev.of_node = np;
 	platform_set_drvdata(op, master);
 	hw = spi_master_get_devdata(master);
-	hw->master = spi_master_get(master);
+	hw->master = master;
 	hw->dev = dev;
 
 	init_completion(&hw->done);
@@ -558,6 +558,7 @@ static int spi_ppc4xx_of_remove(struct platform_device *op)
 	free_irq(hw->irqnum, hw);
 	iounmap(hw->regs);
 	free_gpios(hw);
+	spi_master_put(master);
 	return 0;
 }
 
diff --git a/drivers/spi/spi-s3c24xx.c b/drivers/spi/spi-s3c24xx.c
index ce318d95a6ee..c9cfdfaf7523 100644
--- a/drivers/spi/spi-s3c24xx.c
+++ b/drivers/spi/spi-s3c24xx.c
@@ -524,7 +524,7 @@ static int s3c24xx_spi_probe(struct platform_device *pdev)
 	hw = spi_master_get_devdata(master);
 	memset(hw, 0, sizeof(struct s3c24xx_spi));
 
-	hw->master = spi_master_get(master);
+	hw->master = master;
 	hw->pdata = pdata = dev_get_platdata(&pdev->dev);
 	hw->dev = &pdev->dev;
 
diff --git a/drivers/spi/spi-sh-sci.c b/drivers/spi/spi-sh-sci.c
index 8eefeb6007df..38eb24df796c 100644
--- a/drivers/spi/spi-sh-sci.c
+++ b/drivers/spi/spi-sh-sci.c
@@ -133,7 +133,7 @@ static int sh_sci_spi_probe(struct platform_device *dev)
 	sp->info = dev_get_platdata(&dev->dev);
 
 	/* setup spi bitbang adaptor */
-	sp->bitbang.master = spi_master_get(master);
+	sp->bitbang.master = master;
 	sp->bitbang.master->bus_num = sp->info->bus_num;
 	sp->bitbang.master->num_chipselect = sp->info->num_chipselect;
 	sp->bitbang.chipselect = sh_sci_spi_chipselect;
diff --git a/drivers/spi/spi-sirf.c b/drivers/spi/spi-sirf.c
index a1f21b747733..592b4aff651f 100644
--- a/drivers/spi/spi-sirf.c
+++ b/drivers/spi/spi-sirf.c
@@ -632,7 +632,7 @@ static int spi_sirfsoc_probe(struct platform_device *pdev)
 	if (ret)
 		goto free_master;
 
-	sspi->bitbang.master = spi_master_get(master);
+	sspi->bitbang.master = master;
 	sspi->bitbang.chipselect = spi_sirfsoc_chipselect;
 	sspi->bitbang.setup_transfer = spi_sirfsoc_setup_transfer;
 	sspi->bitbang.txrx_bufs = spi_sirfsoc_transfer;
diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c
index 0bf1b2c457a1..ec3a83f52ea2 100644
--- a/drivers/spi/spi-xilinx.c
+++ b/drivers/spi/spi-xilinx.c
@@ -372,7 +372,7 @@ static int xilinx_spi_probe(struct platform_device *pdev)
 	master->mode_bits = SPI_CPOL | SPI_CPHA;
 
 	xspi = spi_master_get_devdata(master);
-	xspi->bitbang.master = spi_master_get(master);
+	xspi->bitbang.master = master;
 	xspi->bitbang.chipselect = xilinx_spi_chipselect;
 	xspi->bitbang.setup_transfer = xilinx_spi_setup_transfer;
 	xspi->bitbang.txrx_bufs = xilinx_spi_txrx_bufs;
-- 
cgit 


From 9191546f69ddefe66e46bbe9ba8d1872bc226553 Mon Sep 17 00:00:00 2001
From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Tue, 10 Sep 2013 09:51:30 +0200
Subject: spi: efm32: add spi_bitbang_stop to device remove callback
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This call is needed to cleanup the resources requested by
spi_bitbang_start in the probe callback.

Noticed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-efm32.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/spi/spi-efm32.c b/drivers/spi/spi-efm32.c
index d428a40778c1..18659fc6bef2 100644
--- a/drivers/spi/spi-efm32.c
+++ b/drivers/spi/spi-efm32.c
@@ -478,6 +478,8 @@ static int efm32_spi_remove(struct platform_device *pdev)
 	struct spi_master *master = platform_get_drvdata(pdev);
 	struct efm32_spi_ddata *ddata = spi_master_get_devdata(master);
 
+	spi_bitbang_stop(&ddata->bitbang);
+
 	efm32_spi_write32(ddata, 0, REG_IEN);
 
 	free_irq(ddata->txirq, ddata);
-- 
cgit 


From d191bd8de8c61619563f2b19f1fdcc0944ff1a72 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Wed, 4 Sep 2013 19:39:03 -0700
Subject: ASoC: snd_soc_codec includes snd_soc_component

Codec includes component by this patch,
and component moved to upside of codec
to avoid extra declaration.
Codec dai will be registered via component
by this patch.

Current component register function
is used for cpu, and it is using
dai/dais functions properly to keep
existing cpu dai name.

And now, it will be used from codec also.
But codec driver had been used dais function only
even though it was single dai.
This patch adds new flag which can selects
dai/dais function on component register
function to keep existing codec dai name.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/sound/soc.h  |  33 +++++----
 sound/soc/soc-core.c | 202 ++++++++++++++++++++++++++++-----------------------
 2 files changed, 131 insertions(+), 104 deletions(-)

diff --git a/include/sound/soc.h b/include/sound/soc.h
index d22cb0a06feb..9a81e2e7d661 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -670,6 +670,21 @@ struct snd_soc_cache_ops {
 	int (*sync)(struct snd_soc_codec *codec);
 };
 
+/* component interface */
+struct snd_soc_component_driver {
+	const char *name;
+};
+
+struct snd_soc_component {
+	const char *name;
+	int id;
+	int num_dai;
+	struct device *dev;
+	struct list_head list;
+
+	const struct snd_soc_component_driver *driver;
+};
+
 /* SoC Audio Codec device */
 struct snd_soc_codec {
 	const char *name;
@@ -715,6 +730,9 @@ struct snd_soc_codec {
 	struct mutex cache_rw_mutex;
 	int val_bytes;
 
+	/* component */
+	struct snd_soc_component component;
+
 	/* dapm */
 	struct snd_soc_dapm_context dapm;
 	unsigned int ignore_pmdown_time:1; /* pmdown_time is ignored at stop */
@@ -733,6 +751,7 @@ struct snd_soc_codec_driver {
 	int (*remove)(struct snd_soc_codec *);
 	int (*suspend)(struct snd_soc_codec *);
 	int (*resume)(struct snd_soc_codec *);
+	struct snd_soc_component_driver component_driver;
 
 	/* Default control and setup, added after probe() is run */
 	const struct snd_kcontrol_new *controls;
@@ -849,20 +868,6 @@ struct snd_soc_platform {
 #endif
 };
 
-struct snd_soc_component_driver {
-	const char *name;
-};
-
-struct snd_soc_component {
-	const char *name;
-	int id;
-	int num_dai;
-	struct device *dev;
-	struct list_head list;
-
-	const struct snd_soc_component_driver *driver;
-};
-
 struct snd_soc_dai_link {
 	/* config - must be set by machine driver */
 	const char *name;			/* Codec name */
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 4d0561312f3b..014ac10267da 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -4020,6 +4020,112 @@ static void snd_soc_unregister_dais(struct device *dev, size_t count)
 		snd_soc_unregister_dai(dev);
 }
 
+/**
+ * snd_soc_register_component - Register a component with the ASoC core
+ *
+ */
+static int
+__snd_soc_register_component(struct device *dev,
+			     struct snd_soc_component *cmpnt,
+			     const struct snd_soc_component_driver *cmpnt_drv,
+			     struct snd_soc_dai_driver *dai_drv,
+			     int num_dai, bool allow_single_dai)
+{
+	int ret;
+
+	dev_dbg(dev, "component register %s\n", dev_name(dev));
+
+	if (!cmpnt) {
+		dev_err(dev, "ASoC: Failed to connecting component\n");
+		return -ENOMEM;
+	}
+
+	cmpnt->name = fmt_single_name(dev, &cmpnt->id);
+	if (!cmpnt->name) {
+		dev_err(dev, "ASoC: Failed to simplifying name\n");
+		return -ENOMEM;
+	}
+
+	cmpnt->dev	= dev;
+	cmpnt->driver	= cmpnt_drv;
+	cmpnt->num_dai	= num_dai;
+
+	/*
+	 * snd_soc_register_dai()  uses fmt_single_name(), and
+	 * snd_soc_register_dais() uses fmt_multiple_name()
+	 * for dai->name which is used for name based matching
+	 *
+	 * this function is used from cpu/codec.
+	 * allow_single_dai flag can ignore "codec" driver reworking
+	 * since it had been used snd_soc_register_dais(),
+	 */
+	if ((1 == num_dai) && allow_single_dai)
+		ret = snd_soc_register_dai(dev, dai_drv);
+	else
+		ret = snd_soc_register_dais(dev, dai_drv, num_dai);
+	if (ret < 0) {
+		dev_err(dev, "ASoC: Failed to regster DAIs: %d\n", ret);
+		goto error_component_name;
+	}
+
+	mutex_lock(&client_mutex);
+	list_add(&cmpnt->list, &component_list);
+	mutex_unlock(&client_mutex);
+
+	dev_dbg(cmpnt->dev, "ASoC: Registered component '%s'\n", cmpnt->name);
+
+	return ret;
+
+error_component_name:
+	kfree(cmpnt->name);
+
+	return ret;
+}
+
+int snd_soc_register_component(struct device *dev,
+			       const struct snd_soc_component_driver *cmpnt_drv,
+			       struct snd_soc_dai_driver *dai_drv,
+			       int num_dai)
+{
+	struct snd_soc_component *cmpnt;
+
+	cmpnt = devm_kzalloc(dev, sizeof(*cmpnt), GFP_KERNEL);
+	if (!cmpnt) {
+		dev_err(dev, "ASoC: Failed to allocate memory\n");
+		return -ENOMEM;
+	}
+
+	return __snd_soc_register_component(dev, cmpnt, cmpnt_drv,
+					    dai_drv, num_dai, true);
+}
+EXPORT_SYMBOL_GPL(snd_soc_register_component);
+
+/**
+ * snd_soc_unregister_component - Unregister a component from the ASoC core
+ *
+ */
+void snd_soc_unregister_component(struct device *dev)
+{
+	struct snd_soc_component *cmpnt;
+
+	list_for_each_entry(cmpnt, &component_list, list) {
+		if (dev == cmpnt->dev)
+			goto found;
+	}
+	return;
+
+found:
+	snd_soc_unregister_dais(dev, cmpnt->num_dai);
+
+	mutex_lock(&client_mutex);
+	list_del(&cmpnt->list);
+	mutex_unlock(&client_mutex);
+
+	dev_dbg(dev, "ASoC: Unregistered component '%s'\n", cmpnt->name);
+	kfree(cmpnt->name);
+}
+EXPORT_SYMBOL_GPL(snd_soc_unregister_component);
+
 /**
  * snd_soc_add_platform - Add a platform to the ASoC core
  * @dev: The parent device for the platform
@@ -4242,10 +4348,12 @@ int snd_soc_register_codec(struct device *dev,
 	list_add(&codec->list, &codec_list);
 	mutex_unlock(&client_mutex);
 
-	/* register any DAIs */
-	ret = snd_soc_register_dais(dev, dai_drv, num_dai);
+	/* register component */
+	ret = __snd_soc_register_component(dev, &codec->component,
+					   &codec_drv->component_driver,
+					   dai_drv, num_dai, false);
 	if (ret < 0) {
-		dev_err(codec->dev, "ASoC: Failed to regster DAIs: %d\n", ret);
+		dev_err(codec->dev, "ASoC: Failed to regster component: %d\n", ret);
 		goto fail_codec_name;
 	}
 
@@ -4280,7 +4388,7 @@ void snd_soc_unregister_codec(struct device *dev)
 	return;
 
 found:
-	snd_soc_unregister_dais(dev, codec->num_dai);
+	snd_soc_unregister_component(dev);
 
 	mutex_lock(&client_mutex);
 	list_del(&codec->list);
@@ -4295,92 +4403,6 @@ found:
 }
 EXPORT_SYMBOL_GPL(snd_soc_unregister_codec);
 
-
-/**
- * snd_soc_register_component - Register a component with the ASoC core
- *
- */
-int snd_soc_register_component(struct device *dev,
-			 const struct snd_soc_component_driver *cmpnt_drv,
-			 struct snd_soc_dai_driver *dai_drv,
-			 int num_dai)
-{
-	struct snd_soc_component *cmpnt;
-	int ret;
-
-	dev_dbg(dev, "component register %s\n", dev_name(dev));
-
-	cmpnt = devm_kzalloc(dev, sizeof(*cmpnt), GFP_KERNEL);
-	if (!cmpnt) {
-		dev_err(dev, "ASoC: Failed to allocate memory\n");
-		return -ENOMEM;
-	}
-
-	cmpnt->name = fmt_single_name(dev, &cmpnt->id);
-	if (!cmpnt->name) {
-		dev_err(dev, "ASoC: Failed to simplifying name\n");
-		return -ENOMEM;
-	}
-
-	cmpnt->dev	= dev;
-	cmpnt->driver	= cmpnt_drv;
-	cmpnt->num_dai	= num_dai;
-
-	/*
-	 * snd_soc_register_dai()  uses fmt_single_name(), and
-	 * snd_soc_register_dais() uses fmt_multiple_name()
-	 * for dai->name which is used for name based matching
-	 */
-	if (1 == num_dai)
-		ret = snd_soc_register_dai(dev, dai_drv);
-	else
-		ret = snd_soc_register_dais(dev, dai_drv, num_dai);
-	if (ret < 0) {
-		dev_err(dev, "ASoC: Failed to regster DAIs: %d\n", ret);
-		goto error_component_name;
-	}
-
-	mutex_lock(&client_mutex);
-	list_add(&cmpnt->list, &component_list);
-	mutex_unlock(&client_mutex);
-
-	dev_dbg(cmpnt->dev, "ASoC: Registered component '%s'\n", cmpnt->name);
-
-	return ret;
-
-error_component_name:
-	kfree(cmpnt->name);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(snd_soc_register_component);
-
-/**
- * snd_soc_unregister_component - Unregister a component from the ASoC core
- *
- */
-void snd_soc_unregister_component(struct device *dev)
-{
-	struct snd_soc_component *cmpnt;
-
-	list_for_each_entry(cmpnt, &component_list, list) {
-		if (dev == cmpnt->dev)
-			goto found;
-	}
-	return;
-
-found:
-	snd_soc_unregister_dais(dev, cmpnt->num_dai);
-
-	mutex_lock(&client_mutex);
-	list_del(&cmpnt->list);
-	mutex_unlock(&client_mutex);
-
-	dev_dbg(dev, "ASoC: Unregistered component '%s'\n", cmpnt->name);
-	kfree(cmpnt->name);
-}
-EXPORT_SYMBOL_GPL(snd_soc_unregister_component);
-
 /* Retrieve a card's name from device tree */
 int snd_soc_of_parse_card_name(struct snd_soc_card *card,
 			       const char *propname)
-- 
cgit 


From cb470087669a3fab1958fec79dd7db280b33f178 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Tue, 10 Sep 2013 17:39:56 -0700
Subject: ASoC: add .of_xlate_dai_name on snd_soc_component_driver

ASoC sound driver requires CPU/CODEC drivers for probing,
and each CPU/CODEC has some DAI on it.
Then, "dai name matching" have been used to identify
CPU-CODEC DAI pair on ASoC.

But, the "dai port number matching" is now required from DeviceTree.
The solution of this issue is to replace
the dai port number into dai name.
Now, CPU/CODEC are based on struct snd_soc_component,
and it can care above as common issue.

This patch adds .of_xlate_dai_name callback interface
on struct snd_soc_component_driver,
and snd_soc_of_get_dai_name() which is using .of_xlate_dai_name.

Then, #sound-dai-cells which enables DAI specifier is required
on CPU/CODEC device tree properties.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/sound/soc.h  |  8 ++++++++
 sound/soc/soc-core.c | 35 +++++++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)

diff --git a/include/sound/soc.h b/include/sound/soc.h
index 9a81e2e7d661..1dd7dc5f7d52 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -13,6 +13,7 @@
 #ifndef __LINUX_SND_SOC_H
 #define __LINUX_SND_SOC_H
 
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/types.h>
 #include <linux/notifier.h>
@@ -673,6 +674,11 @@ struct snd_soc_cache_ops {
 /* component interface */
 struct snd_soc_component_driver {
 	const char *name;
+
+	/* DT */
+	int (*of_xlate_dai_name)(struct snd_soc_component *component,
+				 struct of_phandle_args *args,
+				 const char **dai_name);
 };
 
 struct snd_soc_component {
@@ -1206,6 +1212,8 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
 				   const char *propname);
 unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
 				     const char *prefix);
+int snd_soc_of_get_dai_name(struct device_node *of_node,
+			    const char **dai_name);
 
 #include <sound/soc-dai.h>
 
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 014ac10267da..711bd362028d 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -4590,6 +4590,41 @@ unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
 }
 EXPORT_SYMBOL_GPL(snd_soc_of_parse_daifmt);
 
+int snd_soc_of_get_dai_name(struct device_node *of_node,
+			    const char **dai_name)
+{
+	struct snd_soc_component *pos;
+	struct of_phandle_args args;
+	int ret;
+
+	ret = of_parse_phandle_with_args(of_node, "sound-dai",
+					 "#sound-dai-cells", 0, &args);
+	if (ret)
+		return ret;
+
+	ret = -EPROBE_DEFER;
+
+	mutex_lock(&client_mutex);
+	list_for_each_entry(pos, &component_list, list) {
+		if (pos->dev->of_node != args.np)
+			continue;
+
+		if (!pos->driver->of_xlate_dai_name) {
+			ret = -ENOSYS;
+			break;
+		}
+
+		ret = pos->driver->of_xlate_dai_name(pos, &args, dai_name);
+		break;
+	}
+	mutex_unlock(&client_mutex);
+
+	of_node_put(args.np);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(snd_soc_of_get_dai_name);
+
 static int __init snd_soc_init(void)
 {
 #ifdef CONFIG_DEBUG_FS
-- 
cgit 


From e19bcb6b95c0326ca364814b86b32799aa7e20db Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 13 Sep 2013 15:52:42 +0530
Subject: ASoC: fsl_spdif: Remove redundant semicolon

Redundant semicolon at the end of brace is removed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/fsl_spdif.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index 3920c3e849ce..c0fea02114e1 100644
--- a/sound/soc/fsl/fsl_spdif.c
+++ b/sound/soc/fsl/fsl_spdif.c
@@ -963,7 +963,7 @@ static bool fsl_spdif_readable_reg(struct device *dev, unsigned int reg)
 		return true;
 	default:
 		return false;
-	};
+	}
 }
 
 static bool fsl_spdif_writeable_reg(struct device *dev, unsigned int reg)
@@ -982,7 +982,7 @@ static bool fsl_spdif_writeable_reg(struct device *dev, unsigned int reg)
 		return true;
 	default:
 		return false;
-	};
+	}
 }
 
 static const struct regmap_config fsl_spdif_regmap_config = {
-- 
cgit 


From feb8f1147618ebf20ab3e5efc143ceb621063f81 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 13 Sep 2013 15:59:25 +0530
Subject: ASoC: fsl_ssi: Remove redundant dev_set_drvdata

Driver core sets the driver data to NULL on detach.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/fsl_ssi.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 4973be774956..6ac87300d45d 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -1135,7 +1135,6 @@ static int fsl_ssi_remove(struct platform_device *pdev)
 	if (ssi_private->ssi_on_imx)
 		imx_pcm_dma_exit(pdev);
 	snd_soc_unregister_component(&pdev->dev);
-	dev_set_drvdata(&pdev->dev, NULL);
 	device_remove_file(&pdev->dev, &ssi_private->dev_attr);
 	if (ssi_private->ssi_on_imx)
 		clk_disable_unprepare(ssi_private->clk);
-- 
cgit 


From 5c21d008713918bcc4289e6ccb327b17b35dc4ef Mon Sep 17 00:00:00 2001
From: George Cherian <george.cherian@ti.com>
Date: Wed, 4 Sep 2013 12:33:01 +0530
Subject: gpio: pcf857x: change to devm_request_threaded_irq

Remove the request_irq and use devm_request_threaded_irq
also cleanup free_irq. devm_* takes care of that.

Signed-off-by: George Cherian <george.cherian@ti.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-pcf857x.c | 28 ++++++++++++++++++++++++----
 1 file changed, 24 insertions(+), 4 deletions(-)

diff --git a/drivers/gpio/gpio-pcf857x.c b/drivers/gpio/gpio-pcf857x.c
index 9e61bb0719d0..25353225fbfd 100644
--- a/drivers/gpio/gpio-pcf857x.c
+++ b/drivers/gpio/gpio-pcf857x.c
@@ -168,6 +168,25 @@ static int pcf857x_to_irq(struct gpio_chip *chip, unsigned offset)
 	return irq_create_mapping(gpio->irq_domain, offset);
 }
 
+static irqreturn_t pcf857x_irq(int irq, void *data)
+{
+	struct pcf857x  *gpio = data;
+	unsigned long change, i, status, flags;
+
+	status = gpio->read(gpio->client);
+
+	spin_lock_irqsave(&gpio->slock, flags);
+
+	change = gpio->status ^ status;
+	for_each_set_bit(i, &change, gpio->chip.ngpio)
+		generic_handle_irq(irq_find_mapping(gpio->irq_domain, i));
+	gpio->status = status;
+
+	spin_unlock_irqrestore(&gpio->slock, flags);
+
+	return IRQ_HANDLED;
+}
+
 static void pcf857x_irq_demux_work(struct work_struct *work)
 {
 	struct pcf857x *gpio = container_of(work,
@@ -218,8 +237,6 @@ static void pcf857x_irq_domain_cleanup(struct pcf857x *gpio)
 	if (gpio->irq_domain)
 		irq_domain_remove(gpio->irq_domain);
 
-	if (gpio->irq)
-		free_irq(gpio->irq, gpio);
 }
 
 static int pcf857x_irq_domain_init(struct pcf857x *gpio,
@@ -235,8 +252,11 @@ static int pcf857x_irq_domain_init(struct pcf857x *gpio,
 		goto fail;
 
 	/* enable real irq */
-	status = request_irq(client->irq, pcf857x_irq_demux, 0,
-			     dev_name(&client->dev), gpio);
+	status = devm_request_threaded_irq(&client->dev, client->irq,
+				NULL, pcf857x_irq, IRQF_ONESHOT |
+				IRQF_TRIGGER_FALLING,
+				dev_name(&client->dev), gpio);
+
 	if (status)
 		goto fail;
 
-- 
cgit 


From 98ff4490900335586727fff6f613765a094680e4 Mon Sep 17 00:00:00 2001
From: George Cherian <george.cherian@ti.com>
Date: Wed, 4 Sep 2013 12:33:02 +0530
Subject: gpio: pcf857x: remove the irq_demux_work and gpio->irq

Now that we are using devm_request_threaded_irq no need for
irq_demux_work and gpio->irq. Remove all its references.

Signed-off-by: George Cherian <george.cherian@ti.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-pcf857x.c | 37 -------------------------------------
 1 file changed, 37 deletions(-)

diff --git a/drivers/gpio/gpio-pcf857x.c b/drivers/gpio/gpio-pcf857x.c
index 25353225fbfd..612fb8d7b380 100644
--- a/drivers/gpio/gpio-pcf857x.c
+++ b/drivers/gpio/gpio-pcf857x.c
@@ -28,7 +28,6 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
-#include <linux/workqueue.h>
 
 
 static const struct i2c_device_id pcf857x_id[] = {
@@ -66,12 +65,10 @@ struct pcf857x {
 	struct gpio_chip	chip;
 	struct i2c_client	*client;
 	struct mutex		lock;		/* protect 'out' */
-	struct work_struct	work;		/* irq demux work */
 	struct irq_domain	*irq_domain;	/* for irq demux  */
 	spinlock_t		slock;		/* protect irq demux */
 	unsigned		out;		/* software latch */
 	unsigned		status;		/* current status */
-	int			irq;		/* real irq number */
 
 	int (*write)(struct i2c_client *client, unsigned data);
 	int (*read)(struct i2c_client *client);
@@ -187,38 +184,6 @@ static irqreturn_t pcf857x_irq(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-static void pcf857x_irq_demux_work(struct work_struct *work)
-{
-	struct pcf857x *gpio = container_of(work,
-					       struct pcf857x,
-					       work);
-	unsigned long change, i, status, flags;
-
-	status = gpio->read(gpio->client);
-
-	spin_lock_irqsave(&gpio->slock, flags);
-
-	change = gpio->status ^ status;
-	for_each_set_bit(i, &change, gpio->chip.ngpio)
-		generic_handle_irq(irq_find_mapping(gpio->irq_domain, i));
-	gpio->status = status;
-
-	spin_unlock_irqrestore(&gpio->slock, flags);
-}
-
-static irqreturn_t pcf857x_irq_demux(int irq, void *data)
-{
-	struct pcf857x	*gpio = data;
-
-	/*
-	 * pcf857x can't read/write data here,
-	 * since i2c data access might go to sleep.
-	 */
-	schedule_work(&gpio->work);
-
-	return IRQ_HANDLED;
-}
-
 static int pcf857x_irq_domain_map(struct irq_domain *domain, unsigned int virq,
 				 irq_hw_number_t hw)
 {
@@ -261,9 +226,7 @@ static int pcf857x_irq_domain_init(struct pcf857x *gpio,
 		goto fail;
 
 	/* enable gpio_to_irq() */
-	INIT_WORK(&gpio->work, pcf857x_irq_demux_work);
 	gpio->chip.to_irq	= pcf857x_to_irq;
-	gpio->irq		= client->irq;
 
 	return 0;
 
-- 
cgit 


From 21fd3cd1874a2ac85990b981a8ab449e9e4ef5b9 Mon Sep 17 00:00:00 2001
From: George Cherian <george.cherian@ti.com>
Date: Wed, 4 Sep 2013 12:33:03 +0530
Subject: gpio: pcf857x: call the gpio user handler iff gpio_to_irq is done

For pcf857x driver if the initial state is not set properly (proper
n_latch is not passed), we get bad irq prints on console.
We get this only for the first interrupt and doesnot repeat for further
interrupts unles and until there are other gpio pins which are not flipping
continously.

following prints are seen on console.

[   40.983924] irq 0, desc: ce004080, depth: 1, count: 0, unhandled: 0
[   40.990511] ->handle_irq():  c00aa538, handle_bad_irq+0x0/0x260
[   40.996768] ->irq_data.chip(): c080b6ec, no_irq_chip+0x0/0x60
[   41.002842] ->action():   (null)
[   41.006242]    IRQ_NOPROBE set
[   41.009465]  IRQ_NOREQUEST set

Signed-off-by: George Cherian <george.cherian@ti.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-pcf857x.c | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-pcf857x.c b/drivers/gpio/gpio-pcf857x.c
index 612fb8d7b380..815944db37bf 100644
--- a/drivers/gpio/gpio-pcf857x.c
+++ b/drivers/gpio/gpio-pcf857x.c
@@ -69,6 +69,7 @@ struct pcf857x {
 	spinlock_t		slock;		/* protect irq demux */
 	unsigned		out;		/* software latch */
 	unsigned		status;		/* current status */
+	unsigned		irq_mapped;	/* mapped gpio irqs */
 
 	int (*write)(struct i2c_client *client, unsigned data);
 	int (*read)(struct i2c_client *client);
@@ -161,8 +162,13 @@ static void pcf857x_set(struct gpio_chip *chip, unsigned offset, int value)
 static int pcf857x_to_irq(struct gpio_chip *chip, unsigned offset)
 {
 	struct pcf857x *gpio = container_of(chip, struct pcf857x, chip);
+	int ret;
 
-	return irq_create_mapping(gpio->irq_domain, offset);
+	ret = irq_create_mapping(gpio->irq_domain, offset);
+	if (ret > 0)
+		gpio->irq_mapped |= (1 << offset);
+
+	return ret;
 }
 
 static irqreturn_t pcf857x_irq(int irq, void *data)
@@ -174,7 +180,12 @@ static irqreturn_t pcf857x_irq(int irq, void *data)
 
 	spin_lock_irqsave(&gpio->slock, flags);
 
-	change = gpio->status ^ status;
+	/*
+	 * call the interrupt handler iff gpio is used as
+	 * interrupt source, just to avoid bad irqs
+	 */
+
+	change = ((gpio->status ^ status) & gpio->irq_mapped);
 	for_each_set_bit(i, &change, gpio->chip.ngpio)
 		generic_handle_irq(irq_find_mapping(gpio->irq_domain, i));
 	gpio->status = status;
@@ -187,9 +198,14 @@ static irqreturn_t pcf857x_irq(int irq, void *data)
 static int pcf857x_irq_domain_map(struct irq_domain *domain, unsigned int virq,
 				 irq_hw_number_t hw)
 {
+	struct pcf857x *gpio = domain->host_data;
+
 	irq_set_chip_and_handler(virq,
 				 &dummy_irq_chip,
 				 handle_level_irq);
+	set_irq_flags(virq, IRQF_VALID);
+	gpio->irq_mapped |= (1 << hw);
+
 	return 0;
 }
 
@@ -212,7 +228,7 @@ static int pcf857x_irq_domain_init(struct pcf857x *gpio,
 	gpio->irq_domain = irq_domain_add_linear(client->dev.of_node,
 						 gpio->chip.ngpio,
 						 &pcf857x_irq_domain_ops,
-						 NULL);
+						 gpio);
 	if (!gpio->irq_domain)
 		goto fail;
 
-- 
cgit 


From a0102375ee82db1e08324b1a21484854cf2c1677 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Sun, 1 Sep 2013 20:30:50 -0700
Subject: regmap: Add regmap_fields APIs

Current Linux kernel is supporting regmap_field method
and it is very useful feature.
It needs one regmap_filed for one register access.

OTOH, there is multi port device which
has many same registers in the market.
The difference for each register access is
only its address offset.

Current API needs many regmap_field for such device,
but it is not good.
This patch adds new regmap_fileds API which can care
about multi port/offset access via regmap.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/base/regmap/internal.h |  3 ++
 drivers/base/regmap/regmap.c   | 83 ++++++++++++++++++++++++++++++++++++++++++
 include/linux/regmap.h         | 11 ++++++
 3 files changed, 97 insertions(+)

diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index 57f777835d97..9010614f7793 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -179,6 +179,9 @@ struct regmap_field {
 	/* lsb */
 	unsigned int shift;
 	unsigned int reg;
+
+	unsigned int id_size;
+	unsigned int id_offset;
 };
 
 #ifdef CONFIG_DEBUG_FS
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 285afa7470c0..00152bf7ab12 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -821,6 +821,8 @@ static void regmap_field_init(struct regmap_field *rm_field,
 	rm_field->reg = reg_field.reg;
 	rm_field->shift = reg_field.lsb;
 	rm_field->mask = ((BIT(field_bits) - 1) << reg_field.lsb);
+	rm_field->id_size = reg_field.id_size;
+	rm_field->id_offset = reg_field.id_offset;
 }
 
 /**
@@ -1389,6 +1391,54 @@ int regmap_field_update_bits(struct regmap_field *field, unsigned int mask, unsi
 }
 EXPORT_SYMBOL_GPL(regmap_field_update_bits);
 
+/**
+ * regmap_fields_write(): Write a value to a single register field with port ID
+ *
+ * @field: Register field to write to
+ * @id: port ID
+ * @val: Value to be written
+ *
+ * A value of zero will be returned on success, a negative errno will
+ * be returned in error cases.
+ */
+int regmap_fields_write(struct regmap_field *field, unsigned int id,
+			unsigned int val)
+{
+	if (id >= field->id_size)
+		return -EINVAL;
+
+	return regmap_update_bits(field->regmap,
+				  field->reg + (field->id_offset * id),
+				  field->mask, val << field->shift);
+}
+EXPORT_SYMBOL_GPL(regmap_fields_write);
+
+/**
+ * regmap_fields_update_bits():	Perform a read/modify/write cycle
+ *                              on the register field
+ *
+ * @field: Register field to write to
+ * @id: port ID
+ * @mask: Bitmask to change
+ * @val: Value to be written
+ *
+ * A value of zero will be returned on success, a negative errno will
+ * be returned in error cases.
+ */
+int regmap_fields_update_bits(struct regmap_field *field,  unsigned int id,
+			      unsigned int mask, unsigned int val)
+{
+	if (id >= field->id_size)
+		return -EINVAL;
+
+	mask = (mask << field->shift) & field->mask;
+
+	return regmap_update_bits(field->regmap,
+				  field->reg + (field->id_offset * id),
+				  mask, val << field->shift);
+}
+EXPORT_SYMBOL_GPL(regmap_fields_update_bits);
+
 /*
  * regmap_bulk_write(): Write multiple registers to the device
  *
@@ -1696,6 +1746,39 @@ int regmap_field_read(struct regmap_field *field, unsigned int *val)
 }
 EXPORT_SYMBOL_GPL(regmap_field_read);
 
+/**
+ * regmap_fields_read(): Read a value to a single register field with port ID
+ *
+ * @field: Register field to read from
+ * @id: port ID
+ * @val: Pointer to store read value
+ *
+ * A value of zero will be returned on success, a negative errno will
+ * be returned in error cases.
+ */
+int regmap_fields_read(struct regmap_field *field, unsigned int id,
+		       unsigned int *val)
+{
+	int ret;
+	unsigned int reg_val;
+
+	if (id >= field->id_size)
+		return -EINVAL;
+
+	ret = regmap_read(field->regmap,
+			  field->reg + (field->id_offset * id),
+			  &reg_val);
+	if (ret != 0)
+		return ret;
+
+	reg_val &= field->mask;
+	reg_val >>= field->shift;
+	*val = reg_val;
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(regmap_fields_read);
+
 /**
  * regmap_bulk_read(): Read multiple registers from the device
  *
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index 4c8c20a7a75d..a12bea07f79e 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -425,11 +425,15 @@ bool regmap_reg_in_ranges(unsigned int reg,
  * @reg: Offset of the register within the regmap bank
  * @lsb: lsb of the register field.
  * @reg: msb of the register field.
+ * @id_size: port size if it has some ports
+ * @id_offset: address offset for each ports
  */
 struct reg_field {
 	unsigned int reg;
 	unsigned int lsb;
 	unsigned int msb;
+	unsigned int id_size;
+	unsigned int id_offset;
 };
 
 #define REG_FIELD(_reg, _lsb, _msb) {		\
@@ -451,6 +455,13 @@ int regmap_field_write(struct regmap_field *field, unsigned int val);
 int regmap_field_update_bits(struct regmap_field *field,
 			     unsigned int mask, unsigned int val);
 
+int regmap_fields_write(struct regmap_field *field, unsigned int id,
+			unsigned int val);
+int regmap_fields_read(struct regmap_field *field, unsigned int id,
+		       unsigned int *val);
+int regmap_fields_update_bits(struct regmap_field *field,  unsigned int id,
+			      unsigned int mask, unsigned int val);
+
 /**
  * Description of an IRQ for the generic regmap irq_chip.
  *
-- 
cgit 


From 524c10818c32ed343d5d8af49c04589ab21e64d4 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:31:50 +0800
Subject: gpiolib-acpi: convert acpi_evaluate_object() to
 acpi_execute_simple_method()

acpi_execute_simple_method() is a new ACPI API introduced to invoke
an ACPI control method that has single integer parameter and no return value.

Convert acpi_evaluate_object() to acpi_execute_simple_method()
in drivers/gpio/gpiolib-acpi.c

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpiolib-acpi.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 5c1ef2b3ef18..f2beb728ed8f 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -73,15 +73,8 @@ static irqreturn_t acpi_gpio_irq_handler(int irq, void *data)
 static irqreturn_t acpi_gpio_irq_handler_evt(int irq, void *data)
 {
 	struct acpi_gpio_evt_pin *evt_pin = data;
-	struct acpi_object_list args;
-	union acpi_object arg;
 
-	arg.type = ACPI_TYPE_INTEGER;
-	arg.integer.value = evt_pin->pin;
-	args.count = 1;
-	args.pointer = &arg;
-
-	acpi_evaluate_object(evt_pin->evt_handle, NULL, &args, NULL);
+	acpi_execute_simple_method(evt_pin->evt_handle, NULL, evt_pin->pin);
 
 	return IRQ_HANDLED;
 }
-- 
cgit 


From 072188b61c9b7aedaa15c46226b537345644beee Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Sun, 1 Sep 2013 20:31:16 -0700
Subject: ASoC: rsnd: gen: rsnd_gen_ops cares .probe and .remove

Current rsnd_gen_ops didn't care about .probe and .remove
functions, but it was not good sense.
This patch tidyup it

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/sh/rcar/gen.c | 41 ++++++++++++++++++++++++-----------------
 1 file changed, 24 insertions(+), 17 deletions(-)

diff --git a/sound/soc/sh/rcar/gen.c b/sound/soc/sh/rcar/gen.c
index babb203b43b7..331fc558d796 100644
--- a/sound/soc/sh/rcar/gen.c
+++ b/sound/soc/sh/rcar/gen.c
@@ -11,6 +11,11 @@
 #include "rsnd.h"
 
 struct rsnd_gen_ops {
+	int (*probe)(struct platform_device *pdev,
+		     struct rcar_snd_info *info,
+		     struct rsnd_priv *priv);
+	void (*remove)(struct platform_device *pdev,
+		      struct rsnd_priv *priv);
 	int (*path_init)(struct rsnd_priv *priv,
 			 struct rsnd_dai *rdai,
 			 struct rsnd_dai_stream *io);
@@ -98,11 +103,6 @@ static int rsnd_gen1_path_exit(struct rsnd_priv *priv,
 	return ret;
 }
 
-static struct rsnd_gen_ops rsnd_gen1_ops = {
-	.path_init	= rsnd_gen1_path_init,
-	.path_exit	= rsnd_gen1_path_exit,
-};
-
 #define RSND_GEN1_REG_MAP(g, s, i, oi, oa)				\
 	do {								\
 		(g)->reg_map[RSND_REG_##i].index  = RSND_GEN1_##s;	\
@@ -163,7 +163,6 @@ static int rsnd_gen1_probe(struct platform_device *pdev,
 	    IS_ERR(gen->base[RSND_GEN1_SSI]))
 		return -ENODEV;
 
-	gen->ops = &rsnd_gen1_ops;
 	rsnd_gen1_reg_map_init(gen);
 
 	dev_dbg(dev, "Gen1 device probed\n");
@@ -183,6 +182,13 @@ static void rsnd_gen1_remove(struct platform_device *pdev,
 {
 }
 
+static struct rsnd_gen_ops rsnd_gen1_ops = {
+	.probe		= rsnd_gen1_probe,
+	.remove		= rsnd_gen1_remove,
+	.path_init	= rsnd_gen1_path_init,
+	.path_exit	= rsnd_gen1_path_exit,
+};
+
 /*
  *		Gen
  */
@@ -251,6 +257,14 @@ int rsnd_gen_probe(struct platform_device *pdev,
 		return -ENOMEM;
 	}
 
+	if (rsnd_is_gen1(priv))
+		gen->ops = &rsnd_gen1_ops;
+
+	if (!gen->ops) {
+		dev_err(dev, "unknown generation R-Car sound device\n");
+		return -ENODEV;
+	}
+
 	priv->gen = gen;
 
 	/*
@@ -261,20 +275,13 @@ int rsnd_gen_probe(struct platform_device *pdev,
 	for (i = 0; i < RSND_REG_MAX; i++)
 		gen->reg_map[i].index = -1;
 
-	/*
-	 *	init each module
-	 */
-	if (rsnd_is_gen1(priv))
-		return rsnd_gen1_probe(pdev, info, priv);
-
-	dev_err(dev, "unknown generation R-Car sound device\n");
-
-	return -ENODEV;
+	return gen->ops->probe(pdev, info, priv);
 }
 
 void rsnd_gen_remove(struct platform_device *pdev,
 		     struct rsnd_priv *priv)
 {
-	if (rsnd_is_gen1(priv))
-		rsnd_gen1_remove(pdev, priv);
+	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+
+	gen->ops->remove(pdev, priv);
 }
-- 
cgit 


From 4aa806b771d16b810771d86ce23c4c3160888db3 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Wed, 26 Jun 2013 13:49:44 +0100
Subject: DMA-API: provide a helper to set both DMA and coherent DMA masks

Provide a helper to set both the DMA and coherent DMA masks to the
same value - this avoids duplicated code in a number of drivers,
sometimes with buggy error handling, and also allows us identify
which drivers do things differently.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 Documentation/DMA-API-HOWTO.txt | 37 ++++++++++++++++++++++---------------
 Documentation/DMA-API.txt       |  8 ++++++++
 include/linux/dma-mapping.h     | 14 ++++++++++++++
 3 files changed, 44 insertions(+), 15 deletions(-)

diff --git a/Documentation/DMA-API-HOWTO.txt b/Documentation/DMA-API-HOWTO.txt
index 14129f149a75..5e983031cc11 100644
--- a/Documentation/DMA-API-HOWTO.txt
+++ b/Documentation/DMA-API-HOWTO.txt
@@ -101,14 +101,23 @@ style to do this even if your device holds the default setting,
 because this shows that you did think about these issues wrt. your
 device.
 
-The query is performed via a call to dma_set_mask():
+The query is performed via a call to dma_set_mask_and_coherent():
 
-	int dma_set_mask(struct device *dev, u64 mask);
+	int dma_set_mask_and_coherent(struct device *dev, u64 mask);
 
-The query for consistent allocations is performed via a call to
-dma_set_coherent_mask():
+which will query the mask for both streaming and coherent APIs together.
+If you have some special requirements, then the following two separate
+queries can be used instead:
 
-	int dma_set_coherent_mask(struct device *dev, u64 mask);
+	The query for streaming mappings is performed via a call to
+	dma_set_mask():
+
+		int dma_set_mask(struct device *dev, u64 mask);
+
+	The query for consistent allocations is performed via a call
+	to dma_set_coherent_mask():
+
+		int dma_set_coherent_mask(struct device *dev, u64 mask);
 
 Here, dev is a pointer to the device struct of your device, and mask
 is a bit mask describing which bits of an address your device
@@ -137,7 +146,7 @@ exactly why.
 
 The standard 32-bit addressing device would do something like this:
 
-	if (dma_set_mask(dev, DMA_BIT_MASK(32))) {
+	if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32))) {
 		printk(KERN_WARNING
 		       "mydev: No suitable DMA available.\n");
 		goto ignore_this_device;
@@ -171,22 +180,20 @@ the case would look like this:
 
 	int using_dac, consistent_using_dac;
 
-	if (!dma_set_mask(dev, DMA_BIT_MASK(64))) {
+	if (!dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64))) {
 		using_dac = 1;
 	   	consistent_using_dac = 1;
-		dma_set_coherent_mask(dev, DMA_BIT_MASK(64));
-	} else if (!dma_set_mask(dev, DMA_BIT_MASK(32))) {
+	} else if (!dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32))) {
 		using_dac = 0;
 		consistent_using_dac = 0;
-		dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
 	} else {
 		printk(KERN_WARNING
 		       "mydev: No suitable DMA available.\n");
 		goto ignore_this_device;
 	}
 
-dma_set_coherent_mask() will always be able to set the same or a
-smaller mask as dma_set_mask(). However for the rare case that a
+The coherent coherent mask will always be able to set the same or a
+smaller mask as the streaming mask. However for the rare case that a
 device driver only uses consistent allocations, one would have to
 check the return value from dma_set_coherent_mask().
 
@@ -199,9 +206,9 @@ address you might do something like:
 		goto ignore_this_device;
 	}
 
-When dma_set_mask() is successful, and returns zero, the kernel saves
-away this mask you have provided.  The kernel will use this
-information later when you make DMA mappings.
+When dma_set_mask() or dma_set_mask_and_coherent() is successful, and
+returns zero, the kernel saves away this mask you have provided.  The
+kernel will use this information later when you make DMA mappings.
 
 There is a case which we are aware of at this time, which is worth
 mentioning in this documentation.  If your device supports multiple
diff --git a/Documentation/DMA-API.txt b/Documentation/DMA-API.txt
index 78a6c569d204..e865279cec58 100644
--- a/Documentation/DMA-API.txt
+++ b/Documentation/DMA-API.txt
@@ -141,6 +141,14 @@ won't change the current mask settings.  It is more intended as an
 internal API for use by the platform than an external API for use by
 driver writers.
 
+int
+dma_set_mask_and_coherent(struct device *dev, u64 mask)
+
+Checks to see if the mask is possible and updates the device
+streaming and coherent DMA mask parameters if it is.
+
+Returns: 0 if successful and a negative error if not.
+
 int
 dma_set_mask(struct device *dev, u64 mask)
 
diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 3a8d0a2af607..ec951f98e3d9 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -97,6 +97,20 @@ static inline int dma_set_coherent_mask(struct device *dev, u64 mask)
 }
 #endif
 
+/*
+ * Set both the DMA mask and the coherent DMA mask to the same thing.
+ * Note that we don't check the return value from dma_set_coherent_mask()
+ * as the DMA API guarantees that the coherent DMA mask can be set to
+ * the same or smaller than the streaming DMA mask.
+ */
+static inline int dma_set_mask_and_coherent(struct device *dev, u64 mask)
+{
+	int rc = dma_set_mask(dev, mask);
+	if (rc == 0)
+		dma_set_coherent_mask(dev, mask);
+	return rc;
+}
+
 extern u64 dma_get_required_mask(struct device *dev);
 
 static inline unsigned int dma_get_max_seg_size(struct device *dev)
-- 
cgit 


From 3e5480791e3b0e239d2cd4e5ecd43a7d2585484b Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Mon, 10 Jun 2013 12:16:54 +0100
Subject: DMA-API: net: brocade/bna/bnad.c: fix 32-bit DMA mask handling

The fallback to 32-bit DMA mask is rather odd:
	if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) &&
	    !dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) {
		*using_dac = true;
	} else {
		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
		if (err) {
			err = dma_set_coherent_mask(&pdev->dev,
						    DMA_BIT_MASK(32));
			if (err)
				goto release_regions;
		}

This means we only try and set the coherent DMA mask if we failed to
set a 32-bit DMA mask, and only if both fail do we fail the driver.
Adjust this so that if either setting fails, we fail the driver - and
thereby end up properly setting both the DMA mask and the coherent
DMA mask in the fallback case.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/net/ethernet/brocade/bna/bnad.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/brocade/bna/bnad.c b/drivers/net/ethernet/brocade/bna/bnad.c
index b78e69e0e52a..45ce6e2214b3 100644
--- a/drivers/net/ethernet/brocade/bna/bnad.c
+++ b/drivers/net/ethernet/brocade/bna/bnad.c
@@ -3300,17 +3300,12 @@ bnad_pci_init(struct bnad *bnad,
 	err = pci_request_regions(pdev, BNAD_NAME);
 	if (err)
 		goto disable_device;
-	if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) &&
-	    !dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) {
+	if (!dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) {
 		*using_dac = true;
 	} else {
-		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
-		if (err) {
-			err = dma_set_coherent_mask(&pdev->dev,
-						    DMA_BIT_MASK(32));
-			if (err)
-				goto release_regions;
-		}
+		err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+		if (err)
+			goto release_regions;
 		*using_dac = false;
 	}
 	pci_set_master(pdev);
-- 
cgit 


From 308fbd8ac0b0078dba29cad027e5b454aac13a6a Mon Sep 17 00:00:00 2001
From: Bojan Prtvar <prtvar.b@gmail.com>
Date: Sun, 1 Sep 2013 20:30:38 +0200
Subject: Staging: android: add __user annotation in binder.c

This fixes the following sparse error
drivers/staging/android/binder.c:1795:36: error: incompatible types in comparison expression (different address spaces)

Signed-off-by: Bojan Prtvar <prtvar.b@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/android/binder.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/android/binder.c b/drivers/staging/android/binder.c
index 98ac020bf912..19e6ba618f83 100644
--- a/drivers/staging/android/binder.c
+++ b/drivers/staging/android/binder.c
@@ -1773,7 +1773,7 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 		case BC_INCREFS_DONE:
 		case BC_ACQUIRE_DONE: {
 			void __user *node_ptr;
-			void *cookie;
+			void __user *cookie;
 			struct binder_node *node;
 
 			if (get_user(node_ptr, (void * __user *)ptr))
-- 
cgit 


From fb07ebc3e82a98a3605112b71ea819c359549c4b Mon Sep 17 00:00:00 2001
From: Bojan Prtvar <prtvar.b@gmail.com>
Date: Mon, 2 Sep 2013 08:18:40 +0200
Subject: Staging: android: Mark local functions in binder.c as static

This fixes the following sparse warnings
drivers/staging/android/binder.c:1703:5: warning: symbol 'binder_thread_write' was not declared. Should it be static?
drivers/staging/android/binder.c:2058:6: warning: symbol 'binder_stat_br' was not declared. Should it be static?

Signed-off-by: Bojan Prtvar <prtvar.b@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/android/binder.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/android/binder.c b/drivers/staging/android/binder.c
index 19e6ba618f83..eaec1dab7fe4 100644
--- a/drivers/staging/android/binder.c
+++ b/drivers/staging/android/binder.c
@@ -1700,7 +1700,8 @@ err_no_context_mgr_node:
 		thread->return_error = return_error;
 }
 
-int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
+static int binder_thread_write(struct binder_proc *proc,
+			struct binder_thread *thread,
 			void __user *buffer, size_t size, size_t *consumed)
 {
 	uint32_t cmd;
@@ -2055,8 +2056,8 @@ int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
 	return 0;
 }
 
-void binder_stat_br(struct binder_proc *proc, struct binder_thread *thread,
-		    uint32_t cmd)
+static void binder_stat_br(struct binder_proc *proc,
+			   struct binder_thread *thread, uint32_t cmd)
 {
 	trace_binder_return(cmd);
 	if (_IOC_NR(cmd) < ARRAY_SIZE(binder_stats.br)) {
-- 
cgit 


From 31507f74f1b2f540614b60cf98d6091f321e4290 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Mon, 2 Sep 2013 17:11:57 +0800
Subject: drivers: staging: android: Kconfig: add depends on MMU for
 ANDROID_BINDER_IPC

ANDROID_BINDER_IPC used the functions which need depend on MMU, so need
let it depend on MMU too, or compiling fails.

The related error:

  drivers/built-in.o: In function `binder_update_page_range':
  drivers/staging/android/binder.c:599: undefined reference to `map_vm_area'
  drivers/staging/android/binder.c:626: undefined reference to `zap_page_range'
  drivers/built-in.o: In function `binder_mmap':
  drivers/staging/android/binder.c:2744: undefined reference to `get_vm_area'

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/android/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/android/Kconfig b/drivers/staging/android/Kconfig
index c0c95be0f969..85fc94b2e0f7 100644
--- a/drivers/staging/android/Kconfig
+++ b/drivers/staging/android/Kconfig
@@ -10,6 +10,7 @@ if ANDROID
 
 config ANDROID_BINDER_IPC
 	bool "Android Binder IPC Driver"
+	depends on MMU
 	default n
 	---help---
 	  Binder is used in Android for both communication between processes,
-- 
cgit 


From cb75d53231ee7c7f01ff9c32da6c3b3623cc26c4 Mon Sep 17 00:00:00 2001
From: Bojan Prtvar <prtvar.b@gmail.com>
Date: Mon, 2 Sep 2013 13:56:19 +0200
Subject: Staging: android: Remove extern from function prototypes in .h files

checkpatch.pl complains that extern prototypes should be avoided in .h files

Signed-off-by: Bojan Prtvar <prtvar.b@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/android/timed_output.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/android/timed_output.h b/drivers/staging/android/timed_output.h
index ec907ab2ff54..905c7cc9588e 100644
--- a/drivers/staging/android/timed_output.h
+++ b/drivers/staging/android/timed_output.h
@@ -31,7 +31,7 @@ struct timed_output_dev {
 	int		state;
 };
 
-extern int timed_output_dev_register(struct timed_output_dev *dev);
-extern void timed_output_dev_unregister(struct timed_output_dev *dev);
+int timed_output_dev_register(struct timed_output_dev *dev);
+void timed_output_dev_unregister(struct timed_output_dev *dev);
 
 #endif
-- 
cgit 


From fb51b500a9adafb85a1c0b0544b547f30c9167e1 Mon Sep 17 00:00:00 2001
From: Cruz Julian Bishop <cruzjbishop@gmail.com>
Date: Tue, 3 Sep 2013 22:05:05 +1000
Subject: staging/android: Persistent formatting of help Kconfig entries

Three entries were recently added with help listed as "help", while
all previous entries were listed as "---help---" to make it more
noticeable.

This commit fixes that. Sorry that it is so trivial, but it's
been bugging me for a while.

Signed-off-by: Cruz Julian Bishop <cruzjbishop@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/android/Kconfig | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/android/Kconfig b/drivers/staging/android/Kconfig
index 85fc94b2e0f7..1e9ab6dfc90d 100644
--- a/drivers/staging/android/Kconfig
+++ b/drivers/staging/android/Kconfig
@@ -77,7 +77,7 @@ config SYNC
 	bool "Synchronization framework"
 	default n
 	select ANON_INODES
-	help
+	---help---
 	  This option enables the framework for synchronization between multiple
 	  drivers.  Sync implementations can take advantage of hardware
 	  synchronization built into devices like GPUs.
@@ -86,7 +86,7 @@ config SW_SYNC
 	bool "Software synchronization objects"
 	default n
 	depends on SYNC
-	help
+	---help---
 	  A sync object driver that uses a 32bit counter to coordinate
 	  syncrhronization.  Useful when there is no hardware primitive backing
 	  the synchronization.
@@ -95,7 +95,7 @@ config SW_SYNC_USER
 	bool "Userspace API for SW_SYNC"
 	default n
 	depends on SW_SYNC
-	help
+	---help---
 	  Provides a user space API to the sw sync object.
 	  *WARNING* improper use of this can result in deadlocking kernel
 	  drivers from userspace.
-- 
cgit 


From 4d2c9d5ddc3a38abb12253b4fd6ac05bfc3b4462 Mon Sep 17 00:00:00 2001
From: Cruz Julian Bishop <cruzjbishop@gmail.com>
Date: Tue, 3 Sep 2013 22:05:07 +1000
Subject: staging/android: Initial partial kernel-doc for ashmem.c

I am beginning to understand the core concepts at play here.

I am nowhere near finished with this class - However, it is better if
I commit what I have documented so far tonight - That way, if I mess
up tomorrow morning, I can just roll back to here.

Sorry if this clutters things up. In the end, once *everything* is
documented, it will make understanding the Android staging driver
easier to understand as a programmer - Hopefully for both new developers
and current ones.

Signed-off-by: Cruz Julian Bishop <cruzjbishop@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/android/ashmem.c | 97 +++++++++++++++++++++++++++-------------
 1 file changed, 67 insertions(+), 30 deletions(-)

diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c
index 8e76ddca0999..acfaeae2bac4 100644
--- a/drivers/staging/android/ashmem.c
+++ b/drivers/staging/android/ashmem.c
@@ -37,41 +37,59 @@
 #define ASHMEM_NAME_PREFIX_LEN (sizeof(ASHMEM_NAME_PREFIX) - 1)
 #define ASHMEM_FULL_NAME_LEN (ASHMEM_NAME_LEN + ASHMEM_NAME_PREFIX_LEN)
 
-/*
- * ashmem_area - anonymous shared memory area
- * Lifecycle: From our parent file's open() until its release()
- * Locking: Protected by `ashmem_mutex'
- * Big Note: Mappings do NOT pin this structure; it dies on close()
+/**
+ * struct ashmem_area - The anonymous shared memory area
+ * @name:		The optional name in /proc/pid/maps
+ * @unpinned_list:	The list of all ashmem areas
+ * @file:		The shmem-based backing file
+ * @size:		The size of the mapping, in bytes
+ * @prot_masks:		The allowed protection bits, as vm_flags
+ *
+ * The lifecycle of this structure is from our parent file's open() until
+ * its release(). It is also protected by 'ashmem_mutex'
+ *
+ * Warning: Mappings do NOT pin this structure; It dies on close()
  */
 struct ashmem_area {
-	char name[ASHMEM_FULL_NAME_LEN]; /* optional name in /proc/pid/maps */
-	struct list_head unpinned_list;	 /* list of all ashmem areas */
-	struct file *file;		 /* the shmem-based backing file */
-	size_t size;			 /* size of the mapping, in bytes */
-	unsigned long prot_mask;	 /* allowed prot bits, as vm_flags */
+	char name[ASHMEM_FULL_NAME_LEN];
+	struct list_head unpinned_list;
+	struct file *file;
+	size_t size;
+	unsigned long prot_mask;
 };
 
-/*
- * ashmem_range - represents an interval of unpinned (evictable) pages
- * Lifecycle: From unpin to pin
- * Locking: Protected by `ashmem_mutex'
+/**
+ * struct ashmem_range - A range of unpinned/evictable pages
+ * @lru:	         The entry in the LRU list
+ * @unpinned:	         The entry in its area's unpinned list
+ * @asma:	         The associated anonymous shared memory area.
+ * @pgstart:	         The starting page (inclusive)
+ * @pgend:	         The ending page (inclusive)
+ * @purged:	         The purge status (ASHMEM_NOT or ASHMEM_WAS_PURGED)
+ *
+ * The lifecycle of this structure is from unpin to pin.
+ * It is protected by 'ashmem_mutex'
  */
 struct ashmem_range {
-	struct list_head lru;		/* entry in LRU list */
-	struct list_head unpinned;	/* entry in its area's unpinned list */
-	struct ashmem_area *asma;	/* associated area */
-	size_t pgstart;			/* starting page, inclusive */
-	size_t pgend;			/* ending page, inclusive */
-	unsigned int purged;		/* ASHMEM_NOT or ASHMEM_WAS_PURGED */
+	struct list_head lru;
+	struct list_head unpinned;
+	struct ashmem_area *asma;
+	size_t pgstart;
+	size_t pgend;
+	unsigned int purged;
 };
 
 /* LRU list of unpinned pages, protected by ashmem_mutex */
 static LIST_HEAD(ashmem_lru_list);
 
-/* Count of pages on our LRU list, protected by ashmem_mutex */
+/**
+ * long lru_count - The count of pages on our LRU list.
+ *
+ * This is protected by ashmem_mutex.
+ */
 static unsigned long lru_count;
 
-/*
+/**
  * ashmem_mutex - protects the list of and each individual ashmem_area
  *
  * Lock Ordering: ashmex_mutex -> i_mutex -> i_alloc_sem
@@ -105,28 +123,43 @@ static struct kmem_cache *ashmem_range_cachep __read_mostly;
 
 #define PROT_MASK		(PROT_EXEC | PROT_READ | PROT_WRITE)
 
+/**
+ * lru_add() - Adds a range of memory to the LRU list
+ * @range:     The memory range being added.
+ *
+ * The range is first added to the end (tail) of the LRU list.
+ * After this, the size of the range is added to @lru_count
+ */
 static inline void lru_add(struct ashmem_range *range)
 {
 	list_add_tail(&range->lru, &ashmem_lru_list);
 	lru_count += range_size(range);
 }
 
+/**
+ * lru_del() - Removes a range of memory from the LRU list
+ * @range:     The memory range being removed
+ *
+ * The range is first deleted from the LRU list.
+ * After this, the size of the range is removed from @lru_count
+ */
 static inline void lru_del(struct ashmem_range *range)
 {
 	list_del(&range->lru);
 	lru_count -= range_size(range);
 }
 
-/*
- * range_alloc - allocate and initialize a new ashmem_range structure
+/**
+ * range_alloc() - Allocates and initializes a new ashmem_range structure
+ * @asma:	   The associated ashmem_area
+ * @prev_range:	   The previous ashmem_range in the sorted asma->unpinned list
+ * @purged:	   Initial purge status (ASMEM_NOT_PURGED or ASHMEM_WAS_PURGED)
+ * @start:	   The starting page (inclusive)
+ * @end:	   The ending page (inclusive)
  *
- * 'asma' - associated ashmem_area
- * 'prev_range' - the previous ashmem_range in the sorted asma->unpinned list
- * 'purged' - initial purge value (ASMEM_NOT_PURGED or ASHMEM_WAS_PURGED)
- * 'start' - starting page, inclusive
- * 'end' - ending page, inclusive
+ * This function is protected by ashmem_mutex.
  *
- * Caller must hold ashmem_mutex.
+ * Return: 0 if successful, or -ENOMEM if there is an error
  */
 static int range_alloc(struct ashmem_area *asma,
 		       struct ashmem_range *prev_range, unsigned int purged,
@@ -151,6 +184,10 @@ static int range_alloc(struct ashmem_area *asma,
 	return 0;
 }
 
+/**
+ * range_del() - Deletes and dealloctes an ashmem_range structure
+ * @range:	 The associated ashmem_range that has previously been allocated
+ */
 static void range_del(struct ashmem_range *range)
 {
 	list_del(&range->unpinned);
-- 
cgit 


From 781114ced258bac3cff00342c9dafda1afe93c6d Mon Sep 17 00:00:00 2001
From: Cruz Julian Bishop <cruzjbishop@gmail.com>
Date: Tue, 3 Sep 2013 22:05:08 +1000
Subject: staging/android: Add some more kerneldoc to ashmem.c

I am sorry if I have interpreted anything incorrectly here. This is my
second day really attempting to understand the Ashmem system.

I can not finish documenting this class at this stage - There is still
more that I have to learn. For now, however, it will have to do.

Signed-off-by: Cruz Julian Bishop <cruzjbishop@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/android/ashmem.c | 40 +++++++++++++++++++++++++++++++++++++---
 1 file changed, 37 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c
index acfaeae2bac4..db5325c88f1c 100644
--- a/drivers/staging/android/ashmem.c
+++ b/drivers/staging/android/ashmem.c
@@ -196,10 +196,17 @@ static void range_del(struct ashmem_range *range)
 	kmem_cache_free(ashmem_range_cachep, range);
 }
 
-/*
- * range_shrink - shrinks a range
+/**
+ * range_shrink() - Shrinks an ashmem_range
+ * @range:	    The associated ashmem_range being shrunk
+ * @start:	    The starting byte of the new range
+ * @end:	    The ending byte of the new range
  *
- * Caller must hold ashmem_mutex.
+ * This does not modify the data inside the existing range in any way - It
+ * simply shrinks the boundaries of the range.
+ *
+ * Theoretically, with a little tweaking, this could eventually be changed
+ * to range_resize, and expand the lru_count if the new range is larger.
  */
 static inline void range_shrink(struct ashmem_range *range,
 				size_t start, size_t end)
@@ -213,6 +220,16 @@ static inline void range_shrink(struct ashmem_range *range,
 		lru_count -= pre - range_size(range);
 }
 
+/**
+ * ashmem_open() - Opens an Anonymous Shared Memory structure
+ * @inode:	   The backing file's index node(?)
+ * @file:	   The backing file
+ *
+ * Please note that the ashmem_area is not returned by this function - It is
+ * instead written to "file->private_data".
+ *
+ * Return: 0 if successful, or another code if unsuccessful.
+ */
 static int ashmem_open(struct inode *inode, struct file *file)
 {
 	struct ashmem_area *asma;
@@ -234,6 +251,14 @@ static int ashmem_open(struct inode *inode, struct file *file)
 	return 0;
 }
 
+/**
+ * ashmem_release() - Releases an Anonymous Shared Memory structure
+ * @ignored:	      The backing file's Index Node(?) - It is ignored here.
+ * @file:	      The backing file
+ *
+ * Return: 0 if successful. If it is anything else, go have a coffee and
+ * try again.
+ */
 static int ashmem_release(struct inode *ignored, struct file *file)
 {
 	struct ashmem_area *asma = file->private_data;
@@ -251,6 +276,15 @@ static int ashmem_release(struct inode *ignored, struct file *file)
 	return 0;
 }
 
+/**
+ * ashmem_read() - Reads a set of bytes from an Ashmem-enabled file
+ * @file:	   The associated backing file.
+ * @buf:	   The buffer of data being written to
+ * @len:	   The number of bytes being read
+ * @pos:	   The position of the first byte to read.
+ *
+ * Return: 0 if successful, or another return code if not.
+ */
 static ssize_t ashmem_read(struct file *file, char __user *buf,
 			   size_t len, loff_t *pos)
 {
-- 
cgit 


From b59f105c7e26e30f9c549b9c08251c662ed0cfb8 Mon Sep 17 00:00:00 2001
From: Cruz Julian Bishop <cruzjbishop@gmail.com>
Date: Tue, 3 Sep 2013 22:05:09 +1000
Subject: staging/android: Add kerneldoc to one function in alarm-dev.c

Sorry. I thought that this would be a nice easy class to document fully.
Turns out I was very wrong - I will have to research the Linux alarm and
timer subsystem one day next week and try again.

Here is what I started out with, anyway. It's not much, but it's better
than nothing!

Signed-off-by: Cruz Julian Bishop <cruzjbishop@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/android/alarm-dev.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/android/alarm-dev.c b/drivers/staging/android/alarm-dev.c
index 6dc27dac679d..647694f43dcf 100644
--- a/drivers/staging/android/alarm-dev.c
+++ b/drivers/staging/android/alarm-dev.c
@@ -60,7 +60,12 @@ struct devalarm {
 
 static struct devalarm alarms[ANDROID_ALARM_TYPE_COUNT];
 
-
+/**
+ * is_wakeup() - Checks to see if this alarm can wake the device
+ * @type:	 The type of alarm being checked
+ *
+ * Return: 1 if this is a wakeup alarm, otherwise 0
+ */
 static int is_wakeup(enum android_alarm_type type)
 {
 	return (type == ANDROID_ALARM_RTC_WAKEUP ||
@@ -76,7 +81,6 @@ static void devalarm_start(struct devalarm *alrm, ktime_t exp)
 		hrtimer_start(&alrm->u.hrt, exp, HRTIMER_MODE_ABS);
 }
 
-
 static int devalarm_try_to_cancel(struct devalarm *alrm)
 {
 	if (is_wakeup(alrm->type))
-- 
cgit 


From 43db70a50737d9044017731d65d19ec1ef0926e5 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 28 Aug 2013 14:59:17 -0700
Subject: staging: comedi: pcmad: use comedi_range_is_bipolar()

Use the core provided helper function instead of duplicating it as
a private function.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcmad.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcmad.c b/drivers/staging/comedi/drivers/pcmad.c
index 423f23676d26..fe482fdd512e 100644
--- a/drivers/staging/comedi/drivers/pcmad.c
+++ b/drivers/staging/comedi/drivers/pcmad.c
@@ -75,12 +75,6 @@ static int pcmad_ai_wait_for_eoc(struct comedi_device *dev,
 	return -ETIME;
 }
 
-static bool pcmad_range_is_bipolar(struct comedi_subdevice *s,
-				   unsigned int range)
-{
-	return s->range_table->range[range].min < 0;
-}
-
 static int pcmad_ai_insn_read(struct comedi_device *dev,
 			      struct comedi_subdevice *s,
 			      struct comedi_insn *insn,
@@ -106,7 +100,7 @@ static int pcmad_ai_insn_read(struct comedi_device *dev,
 		if (s->maxdata == 0x0fff)
 			val >>= 4;
 
-		if (pcmad_range_is_bipolar(s, range)) {
+		if (comedi_range_is_bipolar(s, range)) {
 			/* munge the two's complement value */
 			val ^= ((s->maxdata + 1) >> 1);
 		}
-- 
cgit 


From a49061af1fe303964a56e27e3884361809e4b004 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 28 Aug 2013 15:01:53 -0700
Subject: staging: comedi: ni_labpc: use comedi_range_is_unipolar()

Use the core provided helper function instead of duplicating it as
a private function.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_labpc.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index 1add114dc0bc..27daccb78f83 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -201,12 +201,6 @@ static int labpc_counter_set_mode(struct comedi_device *dev,
 		return i8254_set_mode(base_address, 0, counter_number, mode);
 }
 
-static bool labpc_range_is_unipolar(struct comedi_subdevice *s,
-				    unsigned int range)
-{
-	return s->range_table->range[range].min >= 0;
-}
-
 static int labpc_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 	struct labpc_private *devpriv = dev->private;
@@ -272,7 +266,7 @@ static void labpc_setup_cmd6_reg(struct comedi_device *dev,
 		devpriv->cmd6 &= ~CMD6_NRSE;
 
 	/* bipolar or unipolar range? */
-	if (labpc_range_is_unipolar(s, range))
+	if (comedi_range_is_unipolar(s, range))
 		devpriv->cmd6 |= CMD6_ADCUNI;
 	else
 		devpriv->cmd6 &= ~CMD6_ADCUNI;
@@ -1046,7 +1040,7 @@ static int labpc_ao_insn_write(struct comedi_device *dev,
 	/* set range */
 	if (board->is_labpc1200) {
 		range = CR_RANGE(insn->chanspec);
-		if (labpc_range_is_unipolar(s, range))
+		if (comedi_range_is_unipolar(s, range))
 			devpriv->cmd6 |= CMD6_DACUNI(channel);
 		else
 			devpriv->cmd6 &= ~CMD6_DACUNI(channel);
-- 
cgit 


From cb30fc50feb70762d7d82dab9f832ede3de1d067 Mon Sep 17 00:00:00 2001
From: Sean Williams <unixed@gmail.com>
Date: Sat, 7 Sep 2013 15:51:34 -0700
Subject: Staging: comedi: ni_at_a2150: Remove a few superfluous braces

Please don't flame me :) I'm getting my feet wet with kernel contribution.
One example I saw in a video by GKH suggested cleaning up coding style as a good first commit.

Signed-off-by: Sean Williams <unixed@gmail.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_a2150.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_a2150.c b/drivers/staging/comedi/drivers/ni_at_a2150.c
index 2512ce8dfcaa..c77d34306119 100644
--- a/drivers/staging/comedi/drivers/ni_at_a2150.c
+++ b/drivers/staging/comedi/drivers/ni_at_a2150.c
@@ -684,13 +684,12 @@ static int a2150_set_chanlist(struct comedi_device *dev,
 		devpriv->config_bits |= CHANNEL_BITS(0x4 | start_channel);
 		break;
 	case 2:
-		if (start_channel == 0) {
+		if (start_channel == 0)
 			devpriv->config_bits |= CHANNEL_BITS(0x2);
-		} else if (start_channel == 2) {
+		else if (start_channel == 2)
 			devpriv->config_bits |= CHANNEL_BITS(0x3);
-		} else {
+		else
 			return -1;
-		}
 		break;
 	case 4:
 		devpriv->config_bits |= CHANNEL_BITS(0x1);
-- 
cgit 


From 09567cb4373e962a3079bb06352e1e5452d9a340 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 10:47:03 -0700
Subject: staging: comedi: initialize subdevice s->io_bits in postconfig

The subdevice 'io_bits' is a bit mask of the i/o configuration for
digital subdevices. '0' values indicate that a channel is configured
as an input and '1' values that the channel is an output. Since the
subdevice data is kzalloc()'d, all channels default as inputs.

Modify __comedi_device_postconfig() so that 'io_bits' is correctly
initialized for Digital Output subdevices.

Remove all the unnecessary initializations of 's->io_bits' from the
drivers. Also, remove the unnecessary initialization of the 's->state'.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers.c                       | 7 +++++++
 drivers/staging/comedi/drivers/8255.c                  | 3 ---
 drivers/staging/comedi/drivers/addi-data/addi_common.c | 2 --
 drivers/staging/comedi/drivers/addi_apci_3120.c        | 2 --
 drivers/staging/comedi/drivers/adl_pci6208.c           | 1 -
 drivers/staging/comedi/drivers/adl_pci9118.c           | 2 --
 drivers/staging/comedi/drivers/adv_pci1710.c           | 4 ----
 drivers/staging/comedi/drivers/amplc_dio200_common.c   | 2 --
 drivers/staging/comedi/drivers/icp_multi.c             | 3 ---
 drivers/staging/comedi/drivers/me_daq.c                | 1 -
 drivers/staging/comedi/drivers/ni_660x.c               | 1 -
 drivers/staging/comedi/drivers/ni_daq_700.c            | 1 -
 12 files changed, 7 insertions(+), 22 deletions(-)

diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c
index 317a821b7906..aeef59492ba2 100644
--- a/drivers/staging/comedi/drivers.c
+++ b/drivers/staging/comedi/drivers.c
@@ -285,6 +285,13 @@ static int __comedi_device_postconfig(struct comedi_device *dev)
 		if (s->type == COMEDI_SUBD_UNUSED)
 			continue;
 
+		if (s->type == COMEDI_SUBD_DO) {
+			if (s->n_chan < 32)
+				s->io_bits = (1 << s->n_chan) - 1;
+			else
+				s->io_bits = 0xffffffff;
+		}
+
 		if (s->len_chanlist == 0)
 			s->len_chanlist = 1;
 
diff --git a/drivers/staging/comedi/drivers/8255.c b/drivers/staging/comedi/drivers/8255.c
index 2f070fdbbb1d..5283bb520a1d 100644
--- a/drivers/staging/comedi/drivers/8255.c
+++ b/drivers/staging/comedi/drivers/8255.c
@@ -288,9 +288,6 @@ int subdev_8255_init(struct comedi_device *dev, struct comedi_subdevice *s,
 	s->insn_bits	= subdev_8255_insn;
 	s->insn_config	= subdev_8255_insn_config;
 
-	s->state	= 0;
-	s->io_bits	= 0;
-
 	subdev_8255_do_config(dev, s);
 
 	return 0;
diff --git a/drivers/staging/comedi/drivers/addi-data/addi_common.c b/drivers/staging/comedi/drivers/addi-data/addi_common.c
index 63dff7729ea8..dc87df032203 100644
--- a/drivers/staging/comedi/drivers/addi-data/addi_common.c
+++ b/drivers/staging/comedi/drivers/addi-data/addi_common.c
@@ -204,7 +204,6 @@ static int addi_auto_attach(struct comedi_device *dev,
 		s->len_chanlist =
 			devpriv->s_EeParameters.i_NbrDiChannel;
 		s->range_table = &range_digital;
-		s->io_bits = 0;	/* all bits input */
 		s->insn_config = this_board->di_config;
 		s->insn_read = this_board->di_read;
 		s->insn_write = this_board->di_write;
@@ -223,7 +222,6 @@ static int addi_auto_attach(struct comedi_device *dev,
 		s->len_chanlist =
 			devpriv->s_EeParameters.i_NbrDoChannel;
 		s->range_table = &range_digital;
-		s->io_bits = 0xf;	/* all bits output */
 
 		/* insn_config - for digital output memory */
 		s->insn_config = this_board->do_config;
diff --git a/drivers/staging/comedi/drivers/addi_apci_3120.c b/drivers/staging/comedi/drivers/addi_apci_3120.c
index d804957018ab..67d09e8afb2e 100644
--- a/drivers/staging/comedi/drivers/addi_apci_3120.c
+++ b/drivers/staging/comedi/drivers/addi_apci_3120.c
@@ -164,7 +164,6 @@ static int apci3120_auto_attach(struct comedi_device *dev,
 	s->maxdata = 1;
 	s->len_chanlist = this_board->i_NbrDiChannel;
 	s->range_table = &range_digital;
-	s->io_bits = 0;	/* all bits input */
 	s->insn_bits = apci3120_di_insn_bits;
 
 	/*  Allocate and Initialise DO Subdevice Structures */
@@ -176,7 +175,6 @@ static int apci3120_auto_attach(struct comedi_device *dev,
 	s->maxdata = this_board->i_DoMaxdata;
 	s->len_chanlist = this_board->i_NbrDoChannel;
 	s->range_table = &range_digital;
-	s->io_bits = 0xf;	/* all bits output */
 	s->insn_bits = apci3120_do_insn_bits;
 
 	/*  Allocate and Initialise Timer Subdevice Structures */
diff --git a/drivers/staging/comedi/drivers/adl_pci6208.c b/drivers/staging/comedi/drivers/adl_pci6208.c
index a67ad57cefcb..28975061134b 100644
--- a/drivers/staging/comedi/drivers/adl_pci6208.c
+++ b/drivers/staging/comedi/drivers/adl_pci6208.c
@@ -221,7 +221,6 @@ static int pci6208_auto_attach(struct comedi_device *dev,
 	val = inw(dev->iobase + PCI6208_DIO);
 	val = (val & PCI6208_DIO_DO_MASK) >> PCI6208_DIO_DO_SHIFT;
 	s->state	= val;
-	s->io_bits	= 0x0f;
 
 	dev_info(dev->class_dev, "%s: %s, I/O base=0x%04lx\n",
 		dev->driver->driver_name, dev->board_name, dev->iobase);
diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
index 22196ada0362..7d2cff3eab85 100644
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -2075,7 +2075,6 @@ static int pci9118_common_attach(struct comedi_device *dev, int disable_irq,
 	s->maxdata = 1;
 	s->len_chanlist = 4;
 	s->range_table = &range_digital;
-	s->io_bits = 0;		/* all bits input */
 	s->insn_bits = pci9118_insn_bits_di;
 
 	s = &dev->subdevices[3];
@@ -2085,7 +2084,6 @@ static int pci9118_common_attach(struct comedi_device *dev, int disable_irq,
 	s->maxdata = 1;
 	s->len_chanlist = 4;
 	s->range_table = &range_digital;
-	s->io_bits = 0xf;	/* all bits output */
 	s->insn_bits = pci9118_insn_bits_do;
 
 	devpriv->valid = 1;
diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c
index f84df46d326a..fe087253c870 100644
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ b/drivers/staging/comedi/drivers/adv_pci1710.c
@@ -1320,7 +1320,6 @@ static int pci1710_auto_attach(struct comedi_device *dev,
 		s->maxdata = 1;
 		s->len_chanlist = this_board->n_dichan;
 		s->range_table = &range_digital;
-		s->io_bits = 0;	/* all bits input */
 		s->insn_bits = pci171x_insn_bits_di;
 		subdev++;
 	}
@@ -1333,9 +1332,6 @@ static int pci1710_auto_attach(struct comedi_device *dev,
 		s->maxdata = 1;
 		s->len_chanlist = this_board->n_dochan;
 		s->range_table = &range_digital;
-		/* all bits output */
-		s->io_bits = (1 << this_board->n_dochan) - 1;
-		s->state = 0;
 		s->insn_bits = pci171x_insn_bits_do;
 		subdev++;
 	}
diff --git a/drivers/staging/comedi/drivers/amplc_dio200_common.c b/drivers/staging/comedi/drivers/amplc_dio200_common.c
index c1f723e86146..8c6fa1e62abf 100644
--- a/drivers/staging/comedi/drivers/amplc_dio200_common.c
+++ b/drivers/staging/comedi/drivers/amplc_dio200_common.c
@@ -1022,8 +1022,6 @@ static int dio200_subdev_8255_init(struct comedi_device *dev,
 	s->maxdata = 1;
 	s->insn_bits = dio200_subdev_8255_bits;
 	s->insn_config = dio200_subdev_8255_config;
-	s->state = 0;
-	s->io_bits = 0;
 	dio200_subdev_8255_set_dir(dev, s);
 	return 0;
 }
diff --git a/drivers/staging/comedi/drivers/icp_multi.c b/drivers/staging/comedi/drivers/icp_multi.c
index 3889d23292d0..17f9c0665469 100644
--- a/drivers/staging/comedi/drivers/icp_multi.c
+++ b/drivers/staging/comedi/drivers/icp_multi.c
@@ -548,7 +548,6 @@ static int icp_multi_auto_attach(struct comedi_device *dev,
 	s->maxdata = 1;
 	s->len_chanlist = 16;
 	s->range_table = &range_digital;
-	s->io_bits = 0;
 	s->insn_bits = icp_multi_insn_bits_di;
 
 	s = &dev->subdevices[3];
@@ -558,8 +557,6 @@ static int icp_multi_auto_attach(struct comedi_device *dev,
 	s->maxdata = 1;
 	s->len_chanlist = 8;
 	s->range_table = &range_digital;
-	s->io_bits = 0xff;
-	s->state = 0;
 	s->insn_bits = icp_multi_insn_bits_do;
 
 	s = &dev->subdevices[4];
diff --git a/drivers/staging/comedi/drivers/me_daq.c b/drivers/staging/comedi/drivers/me_daq.c
index a6f6d4a46587..00ebf4dd78fb 100644
--- a/drivers/staging/comedi/drivers/me_daq.c
+++ b/drivers/staging/comedi/drivers/me_daq.c
@@ -545,7 +545,6 @@ static int me_auto_attach(struct comedi_device *dev,
 	s->range_table	= &range_digital;
 	s->insn_bits	= me_dio_insn_bits;
 	s->insn_config	= me_dio_insn_config;
-	s->io_bits	= 0;
 
 	dev_info(dev->class_dev, "%s: %s attached\n",
 		dev->driver->driver_name, dev->board_name);
diff --git a/drivers/staging/comedi/drivers/ni_660x.c b/drivers/staging/comedi/drivers/ni_660x.c
index 3607336dafe2..8a991dcab24a 100644
--- a/drivers/staging/comedi/drivers/ni_660x.c
+++ b/drivers/staging/comedi/drivers/ni_660x.c
@@ -1213,7 +1213,6 @@ static int ni_660x_auto_attach(struct comedi_device *dev,
 	s->range_table = &range_digital;
 	s->insn_bits = ni_660x_dio_insn_bits;
 	s->insn_config = ni_660x_dio_insn_config;
-	s->io_bits = 0;		/* all bits default to input */
 	/*  we use the ioconfig registers to control dio direction, so zero
 	output enables in stc dio control reg */
 	ni_660x_write_register(dev, 0, 0, STCDIOControl);
diff --git a/drivers/staging/comedi/drivers/ni_daq_700.c b/drivers/staging/comedi/drivers/ni_daq_700.c
index 404f83de276d..0ac875f18787 100644
--- a/drivers/staging/comedi/drivers/ni_daq_700.c
+++ b/drivers/staging/comedi/drivers/ni_daq_700.c
@@ -212,7 +212,6 @@ static int daq700_auto_attach(struct comedi_device *dev,
 	s->maxdata	= 1;
 	s->insn_bits	= daq700_dio_insn_bits;
 	s->insn_config	= daq700_dio_insn_config;
-	s->state	= 0;
 	s->io_bits	= 0x00ff;
 
 	/* DAQCard-700 ai */
-- 
cgit 


From 05e60b13a36bf4b6bd4d724b2332d6c3a4023998 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:04:56 -0700
Subject: staging: comedi: drivers: introduce comedi_dio_update_state()

The (*insn_bits) functions for DIO and DO subdevices typically use
the subdevice 's->state' to hold the current state of the output
channels. The 'insn' passed to these functions, INSN_BITS, specifies
two parameters passed in the 'data'.

  data[0] = 'mask', the channels to update
  data[1] = 'bits', the new state for the channels

Introduce a helper function to handle the boilerplate used to
update the internal state.

Note that the 'mask' is filtered by the 'chanmask' of the channels
actually supported by the subdevice. This is used to protect any
non-channel related bits that are stored in the subdevice state.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/comedidev.h |  2 ++
 drivers/staging/comedi/drivers.c   | 22 ++++++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h
index 2e19f659cd22..1d8e61a822fd 100644
--- a/drivers/staging/comedi/comedidev.h
+++ b/drivers/staging/comedi/comedidev.h
@@ -345,6 +345,8 @@ void comedi_buf_memcpy_from(struct comedi_async *async, unsigned int offset,
 int comedi_dio_insn_config(struct comedi_device *, struct comedi_subdevice *,
 			   struct comedi_insn *, unsigned int *data,
 			   unsigned int mask);
+unsigned int comedi_dio_update_state(struct comedi_subdevice *,
+				     unsigned int *data);
 
 void *comedi_alloc_devpriv(struct comedi_device *, size_t);
 int comedi_alloc_subdevices(struct comedi_device *, int);
diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c
index aeef59492ba2..8f02bf66e20b 100644
--- a/drivers/staging/comedi/drivers.c
+++ b/drivers/staging/comedi/drivers.c
@@ -190,6 +190,28 @@ int comedi_dio_insn_config(struct comedi_device *dev,
 }
 EXPORT_SYMBOL_GPL(comedi_dio_insn_config);
 
+/**
+ * comedi_dio_update_state() - update the internal state of DIO subdevices.
+ * @s: comedi_subdevice struct
+ * @data: the channel mask and bits to update
+ */
+unsigned int comedi_dio_update_state(struct comedi_subdevice *s,
+				     unsigned int *data)
+{
+	unsigned int chanmask = (s->n_chan < 32) ? ((1 << s->n_chan) - 1)
+						 : 0xffffffff;
+	unsigned int mask = data[0] & chanmask;
+	unsigned int bits = data[1];
+
+	if (mask) {
+		s->state &= ~mask;
+		s->state |= (bits & mask);
+	}
+
+	return mask;
+}
+EXPORT_SYMBOL_GPL(comedi_dio_update_state);
+
 static int insn_rw_emulate_bits(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				struct comedi_insn *insn, unsigned int *data)
-- 
cgit 


From 18c93c36b36847a76833b2351cb90e17345091b0 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:05:16 -0700
Subject: staging: comedi: skel: use comedi_dio_update_state()

Convert this driver to use the comedi_dio_update_state() helper
function.

Tidy up the comments to reflect the new code.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/skel.c | 46 +++++++++++++++++++++++------------
 1 file changed, 30 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/comedi/drivers/skel.c b/drivers/staging/comedi/drivers/skel.c
index 9e964950a560..daee2f42bde0 100644
--- a/drivers/staging/comedi/drivers/skel.c
+++ b/drivers/staging/comedi/drivers/skel.c
@@ -332,30 +332,44 @@ static int skel_ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 	return i;
 }
 
-/* DIO devices are slightly special.  Although it is possible to
+/*
+ * DIO devices are slightly special. Although it is possible to
  * implement the insn_read/insn_write interface, it is much more
  * useful to applications if you implement the insn_bits interface.
- * This allows packed reading/writing of the DIO channels.  The
- * comedi core can convert between insn_bits and insn_read/write */
+ * This allows packed reading/writing of the DIO channels. The
+ * comedi core can convert between insn_bits and insn_read/write.
+ */
 static int skel_dio_insn_bits(struct comedi_device *dev,
 			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn, unsigned int *data)
+			      struct comedi_insn *insn,
+			      unsigned int *data)
 {
-	/* The insn data is a mask in data[0] and the new data
-	 * in data[1], each channel cooresponding to a bit. */
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= data[0] & data[1];
+	/*
+	 * The insn data is a mask in data[0] and the new data
+	 * in data[1], each channel cooresponding to a bit.
+	 *
+	 * The core provided comedi_dio_update_state() function can
+	 * be used to handle the internal state update to DIO subdevices
+	 * with <= 32 channels. This function will return '0' if the
+	 * state does not change or the mask of the channels that need
+	 * to be updated.
+	 */
+	if (comedi_dio_update_state(s, data)) {
 		/* Write out the new digital output lines */
-		/* outw(s->state,dev->iobase + SKEL_DIO); */
+		/* outw(s->state, dev->iobase + SKEL_DIO); */
 	}
 
-	/* on return, data[1] contains the value of the digital
-	 * input and output lines. */
-	/* data[1]=inw(dev->iobase + SKEL_DIO); */
-	/* or we could just return the software copy of the output values if
-	 * it was a purely digital output subdevice */
-	/* data[1]=s->state; */
+	/*
+	 * On return, data[1] contains the value of the digital
+	 * input and output lines.
+	 */
+	/* data[1] = inw(dev->iobase + SKEL_DIO); */
+
+	/*
+	 * Or we could just return the software copy of the output
+	 * values if it was a purely digital output subdevice.
+	 */
+	/* data[1] = s->state; */
 
 	return insn->n;
 }
-- 
cgit 


From 77e9487bdbb7770b359aaa09e964fda57227ad97 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:05:38 -0700
Subject: staging: comedi: usbdux drivers: use comedi_dio_update_state()

Use comedi_dio_update_state() to handle the boilerplate code to update
the subdevice s->state.

These drivers always need to update the hardware in order to update
the i/o configuration regardless of if the state has changed.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/usbdux.c      | 6 ++----
 drivers/staging/comedi/drivers/usbduxsigma.c | 6 ++----
 2 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/comedi/drivers/usbdux.c b/drivers/staging/comedi/drivers/usbdux.c
index 701ad1a69394..9218d7336923 100644
--- a/drivers/staging/comedi/drivers/usbdux.c
+++ b/drivers/staging/comedi/drivers/usbdux.c
@@ -1133,15 +1133,13 @@ static int usbdux_dio_insn_bits(struct comedi_device *dev,
 {
 
 	struct usbdux_private *devpriv = dev->private;
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
 	int ret;
 
 	down(&devpriv->sem);
 
-	s->state &= ~mask;
-	s->state |= (bits & mask);
+	comedi_dio_update_state(s, data);
 
+	/* Always update the hardware. See the (*insn_config). */
 	devpriv->dux_commands[1] = s->io_bits;
 	devpriv->dux_commands[2] = s->state;
 
diff --git a/drivers/staging/comedi/drivers/usbduxsigma.c b/drivers/staging/comedi/drivers/usbduxsigma.c
index c47f4087568f..5618e61893da 100644
--- a/drivers/staging/comedi/drivers/usbduxsigma.c
+++ b/drivers/staging/comedi/drivers/usbduxsigma.c
@@ -1059,15 +1059,13 @@ static int usbduxsigma_dio_insn_bits(struct comedi_device *dev,
 				     unsigned int *data)
 {
 	struct usbduxsigma_private *devpriv = dev->private;
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
 	int ret;
 
 	down(&devpriv->sem);
 
-	s->state &= ~mask;
-	s->state |= (bits & mask);
+	comedi_dio_update_state(s, data);
 
+	/* Always update the hardware. See the (*insn_config). */
 	devpriv->dux_commands[1] = s->io_bits & 0xff;
 	devpriv->dux_commands[4] = s->state & 0xff;
 	devpriv->dux_commands[2] = (s->io_bits >> 8) & 0xff;
-- 
cgit 


From 97f4289ad08cffe55de06d4ac4f89ac540450aee Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:05:58 -0700
Subject: staging: comedi: drivers: use comedi_dio_update_state() for simple
 cases

Use comedi_dio_update_state() to handle the boilerplate code to update
the subdevice s->state for simple cases where the hardware is updated
when any channel is modified.

Also, fix a bug in the amplc_pc263 and amplc_pci263 drivers where the
current state is not returned in data[1].

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../comedi/drivers/addi-data/hwdrv_apci1564.c      |  7 +----
 .../comedi/drivers/addi-data/hwdrv_apci3200.c      |  7 +----
 drivers/staging/comedi/drivers/addi_apci_1516.c    |  8 +-----
 drivers/staging/comedi/drivers/addi_apci_2032.c    |  8 +-----
 drivers/staging/comedi/drivers/addi_apci_2200.c    |  8 +-----
 drivers/staging/comedi/drivers/addi_apci_3501.c    |  8 +-----
 drivers/staging/comedi/drivers/addi_apci_3xxx.c    |  8 +-----
 drivers/staging/comedi/drivers/adl_pci6208.c       |  9 +-----
 drivers/staging/comedi/drivers/adl_pci7x3x.c       | 13 +--------
 drivers/staging/comedi/drivers/adl_pci9111.c       |  9 +-----
 drivers/staging/comedi/drivers/adl_pci9118.c       |  9 +++---
 drivers/staging/comedi/drivers/adv_pci1710.c       | 12 +++-----
 drivers/staging/comedi/drivers/adv_pci1723.c       | 13 ++++-----
 drivers/staging/comedi/drivers/adv_pci_dio.c       | 33 ++++++++--------------
 drivers/staging/comedi/drivers/aio_iiro_16.c       |  4 +--
 drivers/staging/comedi/drivers/amplc_pc263.c       | 17 ++++++-----
 drivers/staging/comedi/drivers/amplc_pci263.c      | 17 ++++++-----
 drivers/staging/comedi/drivers/cb_das16_cs.c       |  9 ++----
 drivers/staging/comedi/drivers/cb_pcidas64.c       | 25 ++++++++--------
 drivers/staging/comedi/drivers/contec_pci_dio.c    | 12 ++------
 drivers/staging/comedi/drivers/das16.c             |  9 +-----
 drivers/staging/comedi/drivers/das800.c            |  6 +---
 drivers/staging/comedi/drivers/dt2801.c            | 18 ++++++------
 drivers/staging/comedi/drivers/dt2811.c            |  8 +++---
 drivers/staging/comedi/drivers/dt282x.c            | 10 +++----
 drivers/staging/comedi/drivers/dt3000.c            |  9 +++---
 drivers/staging/comedi/drivers/dt9812.c            |  9 +-----
 drivers/staging/comedi/drivers/dyna_pci10xx.c      | 20 ++++---------
 drivers/staging/comedi/drivers/icp_multi.c         | 11 ++------
 drivers/staging/comedi/drivers/multiq3.c           |  8 +++---
 drivers/staging/comedi/drivers/ni_670x.c           | 11 ++------
 drivers/staging/comedi/drivers/ni_at_ao.c          |  8 ++----
 drivers/staging/comedi/drivers/ni_atmio16d.c       |  9 +++---
 drivers/staging/comedi/drivers/ni_pcidio.c         |  9 +++---
 drivers/staging/comedi/drivers/pcl812.c            | 11 +++-----
 drivers/staging/comedi/drivers/pcl818.c            | 18 ++++--------
 drivers/staging/comedi/drivers/quatech_daqp_cs.c   |  8 +-----
 drivers/staging/comedi/drivers/rtd520.c            |  8 +-----
 drivers/staging/comedi/drivers/rti800.c            |  8 +-----
 drivers/staging/comedi/drivers/s526.c              |  9 ++----
 40 files changed, 135 insertions(+), 308 deletions(-)

diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c
index e3cc429403c0..84668544f52d 100644
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c
+++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci1564.c
@@ -260,18 +260,13 @@ static int apci1564_do_insn_bits(struct comedi_device *dev,
 				 unsigned int *data)
 {
 	struct addi_private *devpriv = dev->private;
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
 
 	s->state = inl(devpriv->i_IobaseAmcc + APCI1564_DIGITAL_OP +
 			APCI1564_DIGITAL_OP_RW);
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
 
+	if (comedi_dio_update_state(s, data))
 		outl(s->state, devpriv->i_IobaseAmcc + APCI1564_DIGITAL_OP +
 			APCI1564_DIGITAL_OP_RW);
-	}
 
 	data[1] = s->state;
 
diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c
index 32dce0329fd5..dc73d4d348ed 100644
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c
+++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3200.c
@@ -623,16 +623,11 @@ static int apci3200_do_insn_bits(struct comedi_device *dev,
 				 unsigned int *data)
 {
 	struct addi_private *devpriv = dev->private;
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
 
 	s->state = inl(devpriv->i_IobaseAddon) & 0xf;
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
 
+	if (comedi_dio_update_state(s, data))
 		outl(s->state, devpriv->i_IobaseAddon);
-	}
 
 	data[1] = s->state;
 
diff --git a/drivers/staging/comedi/drivers/addi_apci_1516.c b/drivers/staging/comedi/drivers/addi_apci_1516.c
index 08674c18cf42..9d1b1425c60b 100644
--- a/drivers/staging/comedi/drivers/addi_apci_1516.c
+++ b/drivers/staging/comedi/drivers/addi_apci_1516.c
@@ -90,16 +90,10 @@ static int apci1516_do_insn_bits(struct comedi_device *dev,
 				 struct comedi_insn *insn,
 				 unsigned int *data)
 {
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
-
 	s->state = inw(dev->iobase + APCI1516_DO_REG);
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
 
+	if (comedi_dio_update_state(s, data))
 		outw(s->state, dev->iobase + APCI1516_DO_REG);
-	}
 
 	data[1] = s->state;
 
diff --git a/drivers/staging/comedi/drivers/addi_apci_2032.c b/drivers/staging/comedi/drivers/addi_apci_2032.c
index 6b0ea16ff546..c77ee8732d38 100644
--- a/drivers/staging/comedi/drivers/addi_apci_2032.c
+++ b/drivers/staging/comedi/drivers/addi_apci_2032.c
@@ -57,16 +57,10 @@ static int apci2032_do_insn_bits(struct comedi_device *dev,
 				 struct comedi_insn *insn,
 				 unsigned int *data)
 {
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
-
 	s->state = inl(dev->iobase + APCI2032_DO_REG);
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
 
+	if (comedi_dio_update_state(s, data))
 		outl(s->state, dev->iobase + APCI2032_DO_REG);
-	}
 
 	data[1] = s->state;
 
diff --git a/drivers/staging/comedi/drivers/addi_apci_2200.c b/drivers/staging/comedi/drivers/addi_apci_2200.c
index 92ac8ece8494..7fb32e778d8b 100644
--- a/drivers/staging/comedi/drivers/addi_apci_2200.c
+++ b/drivers/staging/comedi/drivers/addi_apci_2200.c
@@ -50,16 +50,10 @@ static int apci2200_do_insn_bits(struct comedi_device *dev,
 				 struct comedi_insn *insn,
 				 unsigned int *data)
 {
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
-
 	s->state = inw(dev->iobase + APCI2200_DO_REG);
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
 
+	if (comedi_dio_update_state(s, data))
 		outw(s->state, dev->iobase + APCI2200_DO_REG);
-	}
 
 	data[1] = s->state;
 
diff --git a/drivers/staging/comedi/drivers/addi_apci_3501.c b/drivers/staging/comedi/drivers/addi_apci_3501.c
index d9650ffb7d2f..6138440b919e 100644
--- a/drivers/staging/comedi/drivers/addi_apci_3501.c
+++ b/drivers/staging/comedi/drivers/addi_apci_3501.c
@@ -161,16 +161,10 @@ static int apci3501_do_insn_bits(struct comedi_device *dev,
 				 struct comedi_insn *insn,
 				 unsigned int *data)
 {
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
-
 	s->state = inl(dev->iobase + APCI3501_DO_REG);
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
 
+	if (comedi_dio_update_state(s, data))
 		outl(s->state, dev->iobase + APCI3501_DO_REG);
-	}
 
 	data[1] = s->state;
 
diff --git a/drivers/staging/comedi/drivers/addi_apci_3xxx.c b/drivers/staging/comedi/drivers/addi_apci_3xxx.c
index cf5dd10eaf91..fcec604bebf7 100644
--- a/drivers/staging/comedi/drivers/addi_apci_3xxx.c
+++ b/drivers/staging/comedi/drivers/addi_apci_3xxx.c
@@ -664,16 +664,10 @@ static int apci3xxx_do_insn_bits(struct comedi_device *dev,
 				 struct comedi_insn *insn,
 				 unsigned int *data)
 {
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
-
 	s->state = inl(dev->iobase + 48) & 0xf;
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
 
+	if (comedi_dio_update_state(s, data))
 		outl(s->state, dev->iobase + 48);
-	}
 
 	data[1] = s->state;
 
diff --git a/drivers/staging/comedi/drivers/adl_pci6208.c b/drivers/staging/comedi/drivers/adl_pci6208.c
index 28975061134b..60f1f5c9532d 100644
--- a/drivers/staging/comedi/drivers/adl_pci6208.c
+++ b/drivers/staging/comedi/drivers/adl_pci6208.c
@@ -141,15 +141,8 @@ static int pci6208_do_insn_bits(struct comedi_device *dev,
 				struct comedi_insn *insn,
 				unsigned int *data)
 {
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
-
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
-
+	if (comedi_dio_update_state(s, data))
 		outw(s->state, dev->iobase + PCI6208_DIO);
-	}
 
 	data[1] = s->state;
 
diff --git a/drivers/staging/comedi/drivers/adl_pci7x3x.c b/drivers/staging/comedi/drivers/adl_pci7x3x.c
index 81b7203f824f..5617f5ca384a 100644
--- a/drivers/staging/comedi/drivers/adl_pci7x3x.c
+++ b/drivers/staging/comedi/drivers/adl_pci7x3x.c
@@ -112,21 +112,10 @@ static int adl_pci7x3x_do_insn_bits(struct comedi_device *dev,
 				    unsigned int *data)
 {
 	unsigned long reg = (unsigned long)s->private;
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
-
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
 
+	if (comedi_dio_update_state(s, data))
 		outl(s->state, dev->iobase + reg);
-	}
 
-	/*
-	 * NOTE: The output register is not readable.
-	 * This returned state will not be correct until all the
-	 * outputs have been updated.
-	 */
 	data[1] = s->state;
 
 	return insn->n;
diff --git a/drivers/staging/comedi/drivers/adl_pci9111.c b/drivers/staging/comedi/drivers/adl_pci9111.c
index 78cea193504f..89ca5078e8b3 100644
--- a/drivers/staging/comedi/drivers/adl_pci9111.c
+++ b/drivers/staging/comedi/drivers/adl_pci9111.c
@@ -813,15 +813,8 @@ static int pci9111_do_insn_bits(struct comedi_device *dev,
 				struct comedi_insn *insn,
 				unsigned int *data)
 {
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
-
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
-
+	if (comedi_dio_update_state(s, data))
 		outw(s->state, dev->iobase + PCI9111_DIO_REG);
-	}
 
 	data[1] = s->state;
 
diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
index 7d2cff3eab85..f50dbea67240 100644
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -671,13 +671,12 @@ static int pci9118_insn_bits_di(struct comedi_device *dev,
 
 static int pci9118_insn_bits_do(struct comedi_device *dev,
 				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
+				struct comedi_insn *insn,
+				unsigned int *data)
 {
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
+	if (comedi_dio_update_state(s, data))
 		outl(s->state & 0x0f, dev->iobase + PCI9118_DO);
-	}
+
 	data[1] = s->state;
 
 	return insn->n;
diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c
index fe087253c870..3dacfaeca4cb 100644
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ b/drivers/staging/comedi/drivers/adv_pci1710.c
@@ -544,18 +544,14 @@ static int pci171x_insn_bits_di(struct comedi_device *dev,
 	return insn->n;
 }
 
-/*
-==============================================================================
-*/
 static int pci171x_insn_bits_do(struct comedi_device *dev,
 				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
+				struct comedi_insn *insn,
+				unsigned int *data)
 {
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
+	if (comedi_dio_update_state(s, data))
 		outw(s->state, dev->iobase + PCI171x_DO);
-	}
+
 	data[1] = s->state;
 
 	return insn->n;
diff --git a/drivers/staging/comedi/drivers/adv_pci1723.c b/drivers/staging/comedi/drivers/adv_pci1723.c
index b793d6987b84..71321f75d0cd 100644
--- a/drivers/staging/comedi/drivers/adv_pci1723.c
+++ b/drivers/staging/comedi/drivers/adv_pci1723.c
@@ -205,19 +205,16 @@ static int pci1723_dio_insn_config(struct comedi_device *dev,
 	return insn->n;
 }
 
-/*
-  digital i/o bits read/write
-*/
 static int pci1723_dio_insn_bits(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn, unsigned int *data)
+				 struct comedi_insn *insn,
+				 unsigned int *data)
 {
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
+	if (comedi_dio_update_state(s, data))
 		outw(s->state, dev->iobase + PCI1723_WRITE_DIGITAL_OUTPUT_CMD);
-	}
+
 	data[1] = inw(dev->iobase + PCI1723_READ_DIGITAL_INPUT_DATA);
+
 	return insn->n;
 }
 
diff --git a/drivers/staging/comedi/drivers/adv_pci_dio.c b/drivers/staging/comedi/drivers/adv_pci_dio.c
index f091fa0d304d..6bac665261f8 100644
--- a/drivers/staging/comedi/drivers/adv_pci_dio.c
+++ b/drivers/staging/comedi/drivers/adv_pci_dio.c
@@ -448,45 +448,39 @@ static int pci_dio_insn_bits_di_w(struct comedi_device *dev,
 	return insn->n;
 }
 
-/*
-==============================================================================
-*/
 static int pci_dio_insn_bits_do_b(struct comedi_device *dev,
 				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn, unsigned int *data)
+				  struct comedi_insn *insn,
+				  unsigned int *data)
 {
 	const struct diosubd_data *d = (const struct diosubd_data *)s->private;
 	int i;
 
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
+	if (comedi_dio_update_state(s, data)) {
 		for (i = 0; i < d->regs; i++)
 			outb((s->state >> (8 * i)) & 0xff,
 			     dev->iobase + d->addr + i);
 	}
+
 	data[1] = s->state;
 
 	return insn->n;
 }
 
-/*
-==============================================================================
-*/
 static int pci_dio_insn_bits_do_w(struct comedi_device *dev,
 				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn, unsigned int *data)
+				  struct comedi_insn *insn,
+				  unsigned int *data)
 {
 	const struct diosubd_data *d = (const struct diosubd_data *)s->private;
 	int i;
 
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
+	if (comedi_dio_update_state(s, data)) {
 		for (i = 0; i < d->regs; i++)
 			outw((s->state >> (16 * i)) & 0xffff,
 			     dev->iobase + d->addr + 2 * i);
 	}
+
 	data[1] = s->state;
 
 	return insn->n;
@@ -641,12 +635,10 @@ static int pci1760_insn_bits_di(struct comedi_device *dev,
 	return insn->n;
 }
 
-/*
-==============================================================================
-*/
 static int pci1760_insn_bits_do(struct comedi_device *dev,
 				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
+				struct comedi_insn *insn,
+				unsigned int *data)
 {
 	int ret;
 	unsigned char omb[4] = {
@@ -657,14 +649,13 @@ static int pci1760_insn_bits_do(struct comedi_device *dev,
 	};
 	unsigned char imb[4];
 
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
+	if (comedi_dio_update_state(s, data)) {
 		omb[0] = s->state;
 		ret = pci1760_mbxrequest(dev, omb, imb);
 		if (!ret)
 			return ret;
 	}
+
 	data[1] = s->state;
 
 	return insn->n;
diff --git a/drivers/staging/comedi/drivers/aio_iiro_16.c b/drivers/staging/comedi/drivers/aio_iiro_16.c
index afe87cc89761..22b3dda135ff 100644
--- a/drivers/staging/comedi/drivers/aio_iiro_16.c
+++ b/drivers/staging/comedi/drivers/aio_iiro_16.c
@@ -45,9 +45,7 @@ static int aio_iiro_16_dio_insn_bits_write(struct comedi_device *dev,
 					   struct comedi_insn *insn,
 					   unsigned int *data)
 {
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= data[0] & data[1];
+	if (comedi_dio_update_state(s, data)) {
 		outb(s->state & 0xff, dev->iobase + AIO_IIRO_16_RELAY_0_7);
 		outb((s->state >> 8) & 0xff,
 		     dev->iobase + AIO_IIRO_16_RELAY_8_15);
diff --git a/drivers/staging/comedi/drivers/amplc_pc263.c b/drivers/staging/comedi/drivers/amplc_pc263.c
index e7108045f553..5b4b5ab34e2e 100644
--- a/drivers/staging/comedi/drivers/amplc_pc263.c
+++ b/drivers/staging/comedi/drivers/amplc_pc263.c
@@ -57,17 +57,16 @@ static const struct pc263_board pc263_boards[] = {
 
 static int pc263_do_insn_bits(struct comedi_device *dev,
 			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn, unsigned int *data)
+			      struct comedi_insn *insn,
+			      unsigned int *data)
 {
-	/* The insn data is a mask in data[0] and the new data
-	 * in data[1], each channel cooresponding to a bit. */
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= data[0] & data[1];
-		/* Write out the new digital output lines */
-		outb(s->state & 0xFF, dev->iobase);
-		outb(s->state >> 8, dev->iobase + 1);
+	if (comedi_dio_update_state(s, data)) {
+		outb(s->state & 0xff, dev->iobase);
+		outb((s->state >> 8) & 0xff, dev->iobase + 1);
 	}
+
+	data[1] = s->state;
+
 	return insn->n;
 }
 
diff --git a/drivers/staging/comedi/drivers/amplc_pci263.c b/drivers/staging/comedi/drivers/amplc_pci263.c
index 145bb48f618e..4bd4ef8e88cd 100644
--- a/drivers/staging/comedi/drivers/amplc_pci263.c
+++ b/drivers/staging/comedi/drivers/amplc_pci263.c
@@ -44,17 +44,16 @@ The state of the outputs can be read.
 
 static int pci263_do_insn_bits(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
+			       struct comedi_insn *insn,
+			       unsigned int *data)
 {
-	/* The insn data is a mask in data[0] and the new data
-	 * in data[1], each channel cooresponding to a bit. */
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= data[0] & data[1];
-		/* Write out the new digital output lines */
-		outb(s->state & 0xFF, dev->iobase);
-		outb(s->state >> 8, dev->iobase + 1);
+	if (comedi_dio_update_state(s, data)) {
+		outb(s->state & 0xff, dev->iobase);
+		outb((s->state >> 8) & 0xff, dev->iobase + 1);
 	}
+
+	data[1] = s->state;
+
 	return insn->n;
 }
 
diff --git a/drivers/staging/comedi/drivers/cb_das16_cs.c b/drivers/staging/comedi/drivers/cb_das16_cs.c
index 0ce93da70847..3e072955ea79 100644
--- a/drivers/staging/comedi/drivers/cb_das16_cs.c
+++ b/drivers/staging/comedi/drivers/cb_das16_cs.c
@@ -325,14 +325,11 @@ static int das16cs_ao_rinsn(struct comedi_device *dev,
 
 static int das16cs_dio_insn_bits(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn, unsigned int *data)
+				 struct comedi_insn *insn,
+				 unsigned int *data)
 {
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= data[0] & data[1];
-
+	if (comedi_dio_update_state(s, data))
 		outw(s->state, dev->iobase + DAS16CS_DIO);
-	}
 
 	data[1] = inw(dev->iobase + DAS16CS_DIO);
 
diff --git a/drivers/staging/comedi/drivers/cb_pcidas64.c b/drivers/staging/comedi/drivers/cb_pcidas64.c
index 388dbd7a5d27..e49743aed65d 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas64.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas64.c
@@ -3490,18 +3490,15 @@ static int di_rbits(struct comedi_device *dev, struct comedi_subdevice *s,
 	return insn->n;
 }
 
-static int do_wbits(struct comedi_device *dev, struct comedi_subdevice *s,
-		    struct comedi_insn *insn, unsigned int *data)
+static int do_wbits(struct comedi_device *dev,
+		    struct comedi_subdevice *s,
+		    struct comedi_insn *insn,
+		    unsigned int *data)
 {
 	struct pcidas64_private *devpriv = dev->private;
 
-	data[0] &= 0xf;
-	/*  zero bits we are going to change */
-	s->state &= ~data[0];
-	/*  set new bits */
-	s->state |= data[0] & data[1];
-
-	writeb(s->state, devpriv->dio_counter_iobase + DO_REG);
+	if (comedi_dio_update_state(s, data))
+		writeb(s->state, devpriv->dio_counter_iobase + DO_REG);
 
 	data[1] = s->state;
 
@@ -3526,14 +3523,14 @@ static int dio_60xx_config_insn(struct comedi_device *dev,
 	return insn->n;
 }
 
-static int dio_60xx_wbits(struct comedi_device *dev, struct comedi_subdevice *s,
-			  struct comedi_insn *insn, unsigned int *data)
+static int dio_60xx_wbits(struct comedi_device *dev,
+			  struct comedi_subdevice *s,
+			  struct comedi_insn *insn,
+			  unsigned int *data)
 {
 	struct pcidas64_private *devpriv = dev->private;
 
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
+	if (comedi_dio_update_state(s, data)) {
 		writeb(s->state,
 		       devpriv->dio_counter_iobase + DIO_DATA_60XX_REG);
 	}
diff --git a/drivers/staging/comedi/drivers/contec_pci_dio.c b/drivers/staging/comedi/drivers/contec_pci_dio.c
index e781716bf355..89836c0828d9 100644
--- a/drivers/staging/comedi/drivers/contec_pci_dio.c
+++ b/drivers/staging/comedi/drivers/contec_pci_dio.c
@@ -40,17 +40,11 @@ Configuration Options: not applicable, uses comedi PCI auto config
 
 static int contec_do_insn_bits(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
+			       struct comedi_insn *insn,
+			       unsigned int *data)
 {
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
-
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
-
+	if (comedi_dio_update_state(s, data))
 		outw(s->state, dev->iobase + PIO1616L_DO_REG);
-	}
 
 	data[1] = s->state;
 
diff --git a/drivers/staging/comedi/drivers/das16.c b/drivers/staging/comedi/drivers/das16.c
index 1b0793f33b9f..fc058f8e8702 100644
--- a/drivers/staging/comedi/drivers/das16.c
+++ b/drivers/staging/comedi/drivers/das16.c
@@ -952,15 +952,8 @@ static int das16_do_insn_bits(struct comedi_device *dev,
 			      struct comedi_insn *insn,
 			      unsigned int *data)
 {
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
-
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
-
+	if (comedi_dio_update_state(s, data))
 		outb(s->state, dev->iobase + DAS16_DIO_REG);
-	}
 
 	data[1] = s->state;
 
diff --git a/drivers/staging/comedi/drivers/das800.c b/drivers/staging/comedi/drivers/das800.c
index 11e16114e4e3..b80dd0362ffc 100644
--- a/drivers/staging/comedi/drivers/das800.c
+++ b/drivers/staging/comedi/drivers/das800.c
@@ -630,13 +630,9 @@ static int das800_do_insn_bits(struct comedi_device *dev,
 			       unsigned int *data)
 {
 	struct das800_private *devpriv = dev->private;
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
 	unsigned long irq_flags;
 
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
+	if (comedi_dio_update_state(s, data)) {
 		devpriv->do_bits = s->state << 4;
 
 		spin_lock_irqsave(&dev->spinlock, irq_flags);
diff --git a/drivers/staging/comedi/drivers/dt2801.c b/drivers/staging/comedi/drivers/dt2801.c
index 38918a1198aa..1a2b0e4b1ea5 100644
--- a/drivers/staging/comedi/drivers/dt2801.c
+++ b/drivers/staging/comedi/drivers/dt2801.c
@@ -528,23 +528,23 @@ static int dt2801_ao_insn_write(struct comedi_device *dev,
 
 static int dt2801_dio_insn_bits(struct comedi_device *dev,
 				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
+				struct comedi_insn *insn,
+				unsigned int *data)
 {
-	int which = 0;
-
-	if (s == &dev->subdevices[3])
-		which = 1;
+	int which = (s == &dev->subdevices[3]) ? 1 : 0;
+	unsigned int val;
 
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
+	if (comedi_dio_update_state(s, data)) {
 		dt2801_writecmd(dev, DT_C_WRITE_DIG);
 		dt2801_writedata(dev, which);
 		dt2801_writedata(dev, s->state);
 	}
+
 	dt2801_writecmd(dev, DT_C_READ_DIG);
 	dt2801_writedata(dev, which);
-	dt2801_readdata(dev, data + 1);
+	dt2801_readdata(dev, &val);
+
+	data[1] = val;
 
 	return insn->n;
 }
diff --git a/drivers/staging/comedi/drivers/dt2811.c b/drivers/staging/comedi/drivers/dt2811.c
index a41a5716f358..0ca02fa7ba1b 100644
--- a/drivers/staging/comedi/drivers/dt2811.c
+++ b/drivers/staging/comedi/drivers/dt2811.c
@@ -353,11 +353,11 @@ static int dt2811_di_insn_bits(struct comedi_device *dev,
 
 static int dt2811_do_insn_bits(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
+			       struct comedi_insn *insn,
+			       unsigned int *data)
 {
-	s->state &= ~data[0];
-	s->state |= data[0] & data[1];
-	outb(s->state, dev->iobase + DT2811_DIO);
+	if (comedi_dio_update_state(s, data))
+		outb(s->state, dev->iobase + DT2811_DIO);
 
 	data[1] = s->state;
 
diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c
index da3ee859bdbc..e89126a15e53 100644
--- a/drivers/staging/comedi/drivers/dt282x.c
+++ b/drivers/staging/comedi/drivers/dt282x.c
@@ -967,14 +967,12 @@ static int dt282x_ao_cancel(struct comedi_device *dev,
 
 static int dt282x_dio_insn_bits(struct comedi_device *dev,
 				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
+				struct comedi_insn *insn,
+				unsigned int *data)
 {
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
-
+	if (comedi_dio_update_state(s, data))
 		outw(s->state, dev->iobase + DT2821_DIODAT);
-	}
+
 	data[1] = inw(dev->iobase + DT2821_DIODAT);
 
 	return insn->n;
diff --git a/drivers/staging/comedi/drivers/dt3000.c b/drivers/staging/comedi/drivers/dt3000.c
index 64ef87598b60..fec911fc8d68 100644
--- a/drivers/staging/comedi/drivers/dt3000.c
+++ b/drivers/staging/comedi/drivers/dt3000.c
@@ -665,13 +665,12 @@ static int dt3k_dio_insn_config(struct comedi_device *dev,
 
 static int dt3k_dio_insn_bits(struct comedi_device *dev,
 			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn, unsigned int *data)
+			      struct comedi_insn *insn,
+			      unsigned int *data)
 {
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= data[1] & data[0];
+	if (comedi_dio_update_state(s, data))
 		dt3k_writesingle(dev, SUBS_DOUT, 0, s->state);
-	}
+
 	data[1] = dt3k_readsingle(dev, SUBS_DIN, 0, 0);
 
 	return insn->n;
diff --git a/drivers/staging/comedi/drivers/dt9812.c b/drivers/staging/comedi/drivers/dt9812.c
index b5e6f33dc217..64565d4c902d 100644
--- a/drivers/staging/comedi/drivers/dt9812.c
+++ b/drivers/staging/comedi/drivers/dt9812.c
@@ -580,15 +580,8 @@ static int dt9812_do_insn_bits(struct comedi_device *dev,
 			       struct comedi_insn *insn,
 			       unsigned int *data)
 {
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
-
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
-
+	if (comedi_dio_update_state(s, data))
 		dt9812_digital_out(dev, s->state);
-	}
 
 	data[1] = s->state;
 
diff --git a/drivers/staging/comedi/drivers/dyna_pci10xx.c b/drivers/staging/comedi/drivers/dyna_pci10xx.c
index fd525f499f2a..f2a9f1c2f3b6 100644
--- a/drivers/staging/comedi/drivers/dyna_pci10xx.c
+++ b/drivers/staging/comedi/drivers/dyna_pci10xx.c
@@ -147,33 +147,23 @@ static int dyna_pci10xx_di_insn_bits(struct comedi_device *dev,
 	return insn->n;
 }
 
-/* digital output bit interface */
 static int dyna_pci10xx_do_insn_bits(struct comedi_device *dev,
-			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn, unsigned int *data)
+				     struct comedi_subdevice *s,
+				     struct comedi_insn *insn,
+				     unsigned int *data)
 {
 	struct dyna_pci10xx_private *devpriv = dev->private;
 
-	/* The insn data is a mask in data[0] and the new data
-	 * in data[1], each channel cooresponding to a bit.
-	 * s->state contains the previous write data
-	 */
 	mutex_lock(&devpriv->mutex);
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
+	if (comedi_dio_update_state(s, data)) {
 		smp_mb();
 		outw_p(s->state, devpriv->BADR3);
 		udelay(10);
 	}
 
-	/*
-	 * On return, data[1] contains the value of the digital
-	 * input and output lines. We just return the software copy of the
-	 * output values if it was a purely digital output subdevice.
-	 */
 	data[1] = s->state;
 	mutex_unlock(&devpriv->mutex);
+
 	return insn->n;
 }
 
diff --git a/drivers/staging/comedi/drivers/icp_multi.c b/drivers/staging/comedi/drivers/icp_multi.c
index 17f9c0665469..15d87187b590 100644
--- a/drivers/staging/comedi/drivers/icp_multi.c
+++ b/drivers/staging/comedi/drivers/icp_multi.c
@@ -348,18 +348,13 @@ static int icp_multi_insn_bits_di(struct comedi_device *dev,
 
 static int icp_multi_insn_bits_do(struct comedi_device *dev,
 				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn, unsigned int *data)
+				  struct comedi_insn *insn,
+				  unsigned int *data)
 {
 	struct icp_multi_private *devpriv = dev->private;
 
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
-
-		printk(KERN_DEBUG "Digital outputs = %4x \n", s->state);
-
+	if (comedi_dio_update_state(s, data))
 		writew(s->state, devpriv->io_addr + ICP_MULTI_DO);
-	}
 
 	data[1] = readw(devpriv->io_addr + ICP_MULTI_DI);
 
diff --git a/drivers/staging/comedi/drivers/multiq3.c b/drivers/staging/comedi/drivers/multiq3.c
index 9d75ea4e201b..3ca755eca285 100644
--- a/drivers/staging/comedi/drivers/multiq3.c
+++ b/drivers/staging/comedi/drivers/multiq3.c
@@ -163,11 +163,11 @@ static int multiq3_di_insn_bits(struct comedi_device *dev,
 
 static int multiq3_do_insn_bits(struct comedi_device *dev,
 				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
+				struct comedi_insn *insn,
+				unsigned int *data)
 {
-	s->state &= ~data[0];
-	s->state |= (data[0] & data[1]);
-	outw(s->state, dev->iobase + MULTIQ3_DIGOUT_PORT);
+	if (comedi_dio_update_state(s, data))
+		outw(s->state, dev->iobase + MULTIQ3_DIGOUT_PORT);
 
 	data[1] = s->state;
 
diff --git a/drivers/staging/comedi/drivers/ni_670x.c b/drivers/staging/comedi/drivers/ni_670x.c
index e2926ce3fb24..e4414cf110e7 100644
--- a/drivers/staging/comedi/drivers/ni_670x.c
+++ b/drivers/staging/comedi/drivers/ni_670x.c
@@ -136,20 +136,15 @@ static int ni_670x_ao_rinsn(struct comedi_device *dev,
 
 static int ni_670x_dio_insn_bits(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn, unsigned int *data)
+				 struct comedi_insn *insn,
+				 unsigned int *data)
 {
 	struct ni_670x_private *devpriv = dev->private;
 	void __iomem *io_addr = devpriv->mite->daq_io_addr +
 					DIO_PORT0_DATA_OFFSET;
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
-
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
 
+	if (comedi_dio_update_state(s, data))
 		writel(s->state, io_addr);
-	}
 
 	data[1] = readl(io_addr);
 
diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index b9122fd835e1..4e4b227e091f 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -233,13 +233,11 @@ static int atao_ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 
 static int atao_dio_insn_bits(struct comedi_device *dev,
 			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn, unsigned int *data)
+			      struct comedi_insn *insn,
+			      unsigned int *data)
 {
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= data[0] & data[1];
+	if (comedi_dio_update_state(s, data))
 		outw(s->state, dev->iobase + ATAO_DOUT);
-	}
 
 	data[1] = inw(dev->iobase + ATAO_DIN);
 
diff --git a/drivers/staging/comedi/drivers/ni_atmio16d.c b/drivers/staging/comedi/drivers/ni_atmio16d.c
index bb3491f5ad21..a9f7d40d6db2 100644
--- a/drivers/staging/comedi/drivers/ni_atmio16d.c
+++ b/drivers/staging/comedi/drivers/ni_atmio16d.c
@@ -558,13 +558,12 @@ static int atmio16d_ao_insn_write(struct comedi_device *dev,
 
 static int atmio16d_dio_insn_bits(struct comedi_device *dev,
 				  struct comedi_subdevice *s,
-				  struct comedi_insn *insn, unsigned int *data)
+				  struct comedi_insn *insn,
+				  unsigned int *data)
 {
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] | data[1]);
+	if (comedi_dio_update_state(s, data))
 		outw(s->state, dev->iobase + MIO_16_DIG_OUT_REG);
-	}
+
 	data[1] = inw(dev->iobase + MIO_16_DIG_IN_REG);
 
 	return insn->n;
diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c
index fad81bc97b6e..b6283a8a7cd4 100644
--- a/drivers/staging/comedi/drivers/ni_pcidio.c
+++ b/drivers/staging/comedi/drivers/ni_pcidio.c
@@ -657,15 +657,14 @@ static int ni_pcidio_insn_config(struct comedi_device *dev,
 
 static int ni_pcidio_insn_bits(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
+			       struct comedi_insn *insn,
+			       unsigned int *data)
 {
 	struct nidio96_private *devpriv = dev->private;
 
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
+	if (comedi_dio_update_state(s, data))
 		writel(s->state, devpriv->mite->daq_io_addr + Port_IO(0));
-	}
+
 	data[1] = readl(devpriv->mite->daq_io_addr + Port_IO(0));
 
 	return insn->n;
diff --git a/drivers/staging/comedi/drivers/pcl812.c b/drivers/staging/comedi/drivers/pcl812.c
index 03a098900d34..2b10a95251bd 100644
--- a/drivers/staging/comedi/drivers/pcl812.c
+++ b/drivers/staging/comedi/drivers/pcl812.c
@@ -509,19 +509,16 @@ static int pcl812_di_insn_bits(struct comedi_device *dev,
 	return insn->n;
 }
 
-/*
-==============================================================================
-*/
 static int pcl812_do_insn_bits(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
+			       struct comedi_insn *insn,
+			       unsigned int *data)
 {
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= data[0] & data[1];
+	if (comedi_dio_update_state(s, data)) {
 		outb(s->state & 0xff, dev->iobase + PCL812_DO_LO);
 		outb((s->state >> 8), dev->iobase + PCL812_DO_HI);
 	}
+
 	data[1] = s->state;
 
 	return insn->n;
diff --git a/drivers/staging/comedi/drivers/pcl818.c b/drivers/staging/comedi/drivers/pcl818.c
index a52ba82ff0e4..33cd4aae884e 100644
--- a/drivers/staging/comedi/drivers/pcl818.c
+++ b/drivers/staging/comedi/drivers/pcl818.c
@@ -418,21 +418,15 @@ static int pcl818_di_insn_bits(struct comedi_device *dev,
 	return insn->n;
 }
 
-/*
-==============================================================================
-   DIGITAL OUTPUT MODE0, 818 cards
-
-   only one sample per call is supported
-*/
 static int pcl818_do_insn_bits(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
+			       struct comedi_insn *insn,
+			       unsigned int *data)
 {
-	s->state &= ~data[0];
-	s->state |= (data[0] & data[1]);
-
-	outb(s->state & 0xff, dev->iobase + PCL818_DO_LO);
-	outb((s->state >> 8), dev->iobase + PCL818_DO_HI);
+	if (comedi_dio_update_state(s, data)) {
+		outb(s->state & 0xff, dev->iobase + PCL818_DO_LO);
+		outb((s->state >> 8), dev->iobase + PCL818_DO_HI);
+	}
 
 	data[1] = s->state;
 
diff --git a/drivers/staging/comedi/drivers/quatech_daqp_cs.c b/drivers/staging/comedi/drivers/quatech_daqp_cs.c
index 9775d3622a62..ece3031711eb 100644
--- a/drivers/staging/comedi/drivers/quatech_daqp_cs.c
+++ b/drivers/staging/comedi/drivers/quatech_daqp_cs.c
@@ -690,18 +690,12 @@ static int daqp_do_insn_bits(struct comedi_device *dev,
 			     unsigned int *data)
 {
 	struct daqp_private *devpriv = dev->private;
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
 
 	if (devpriv->stop)
 		return -EIO;
 
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
-
+	if (comedi_dio_update_state(s, data))
 		outb(s->state, dev->iobase + DAQP_DIGITAL_IO);
-	}
 
 	data[1] = s->state;
 
diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c
index 93c980c62a23..3ec6632949bd 100644
--- a/drivers/staging/comedi/drivers/rtd520.c
+++ b/drivers/staging/comedi/drivers/rtd520.c
@@ -1217,15 +1217,9 @@ static int rtd_dio_insn_bits(struct comedi_device *dev,
 			     unsigned int *data)
 {
 	struct rtd_private *devpriv = dev->private;
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
-
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
 
+	if (comedi_dio_update_state(s, data))
 		writew(s->state & 0xff, devpriv->las0 + LAS0_DIO0);
-	}
 
 	data[1] = readw(devpriv->las0 + LAS0_DIO0) & 0xff;
 
diff --git a/drivers/staging/comedi/drivers/rti800.c b/drivers/staging/comedi/drivers/rti800.c
index cbb4ba5b852a..e1f3671ac056 100644
--- a/drivers/staging/comedi/drivers/rti800.c
+++ b/drivers/staging/comedi/drivers/rti800.c
@@ -267,13 +267,7 @@ static int rti800_do_insn_bits(struct comedi_device *dev,
 			       struct comedi_insn *insn,
 			       unsigned int *data)
 {
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
-
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
-
+	if (comedi_dio_update_state(s, data)) {
 		/* Outputs are inverted... */
 		outb(s->state ^ 0xff, dev->iobase + RTI800_DO);
 	}
diff --git a/drivers/staging/comedi/drivers/s526.c b/drivers/staging/comedi/drivers/s526.c
index d629463b85a2..9950f59b1192 100644
--- a/drivers/staging/comedi/drivers/s526.c
+++ b/drivers/staging/comedi/drivers/s526.c
@@ -499,14 +499,11 @@ static int s526_ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 
 static int s526_dio_insn_bits(struct comedi_device *dev,
 			      struct comedi_subdevice *s,
-			      struct comedi_insn *insn, unsigned int *data)
+			      struct comedi_insn *insn,
+			      unsigned int *data)
 {
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= data[0] & data[1];
-
+	if (comedi_dio_update_state(s, data))
 		outw(s->state, dev->iobase + REG_DIO);
-	}
 
 	data[1] = inw(dev->iobase + REG_DIO) & 0xff;
 
-- 
cgit 


From b3ff824a81e8978deb56f6d163479c1a0a606037 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:06:17 -0700
Subject: staging: comedi: drivers: use comedi_dio_update_state() for complex
 cases

Use comedi_dio_update_state() to handle the boilerplate code to update
the subdevice s->state for more complex cases where the hardware is only
updated based on the 'mask' of the channels that are modified.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/8255.c              | 22 +++----
 .../staging/comedi/drivers/amplc_dio200_common.c   | 31 +++++-----
 drivers/staging/comedi/drivers/dmm32at.c           | 70 +++++++++-------------
 drivers/staging/comedi/drivers/dt2817.c            | 51 +++++++---------
 drivers/staging/comedi/drivers/ni_6527.c           | 22 +++----
 drivers/staging/comedi/drivers/ni_daq_700.c        | 18 +++---
 drivers/staging/comedi/drivers/pcl711.c            | 19 +++---
 drivers/staging/comedi/drivers/pcl726.c            | 19 +++---
 drivers/staging/comedi/drivers/pcl730.c            | 13 ++--
 9 files changed, 124 insertions(+), 141 deletions(-)

diff --git a/drivers/staging/comedi/drivers/8255.c b/drivers/staging/comedi/drivers/8255.c
index 5283bb520a1d..5737bb4c29ab 100644
--- a/drivers/staging/comedi/drivers/8255.c
+++ b/drivers/staging/comedi/drivers/8255.c
@@ -126,30 +126,24 @@ EXPORT_SYMBOL_GPL(subdev_8255_interrupt);
 
 static int subdev_8255_insn(struct comedi_device *dev,
 			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn, unsigned int *data)
+			    struct comedi_insn *insn,
+			    unsigned int *data)
 {
 	struct subdev_8255_private *spriv = s->private;
 	unsigned long iobase = spriv->iobase;
 	unsigned int mask;
-	unsigned int bits;
 	unsigned int v;
 
-	mask = data[0];
-	bits = data[1];
-
+	mask = comedi_dio_update_state(s, data);
 	if (mask) {
-		v = s->state;
-		v &= ~mask;
-		v |= (bits & mask);
-
 		if (mask & 0xff)
-			spriv->io(1, _8255_DATA, v & 0xff, iobase);
+			spriv->io(1, _8255_DATA, s->state & 0xff, iobase);
 		if (mask & 0xff00)
-			spriv->io(1, _8255_DATA + 1, (v >> 8) & 0xff, iobase);
+			spriv->io(1, _8255_DATA + 1, (s->state >> 8) & 0xff,
+				  iobase);
 		if (mask & 0xff0000)
-			spriv->io(1, _8255_DATA + 2, (v >> 16) & 0xff, iobase);
-
-		s->state = v;
+			spriv->io(1, _8255_DATA + 2, (s->state >> 16) & 0xff,
+				  iobase);
 	}
 
 	v = spriv->io(0, _8255_DATA, 0, iobase);
diff --git a/drivers/staging/comedi/drivers/amplc_dio200_common.c b/drivers/staging/comedi/drivers/amplc_dio200_common.c
index 8c6fa1e62abf..2e4bf284d52c 100644
--- a/drivers/staging/comedi/drivers/amplc_dio200_common.c
+++ b/drivers/staging/comedi/drivers/amplc_dio200_common.c
@@ -941,31 +941,34 @@ static void dio200_subdev_8255_set_dir(struct comedi_device *dev,
 	dio200_write8(dev, subpriv->ofs + 3, config);
 }
 
-/*
- * Handle 'insn_bits' for an '8255' DIO subdevice.
- */
 static int dio200_subdev_8255_bits(struct comedi_device *dev,
 				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn, unsigned int *data)
+				   struct comedi_insn *insn,
+				   unsigned int *data)
 {
 	struct dio200_subdev_8255 *subpriv = s->private;
+	unsigned int mask;
+	unsigned int val;
 
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
-		if (data[0] & 0xff)
+	mask = comedi_dio_update_state(s, data);
+	if (mask) {
+		if (mask & 0xff)
 			dio200_write8(dev, subpriv->ofs, s->state & 0xff);
-		if (data[0] & 0xff00)
+		if (mask & 0xff00)
 			dio200_write8(dev, subpriv->ofs + 1,
 				      (s->state >> 8) & 0xff);
-		if (data[0] & 0xff0000)
+		if (mask & 0xff0000)
 			dio200_write8(dev, subpriv->ofs + 2,
 				      (s->state >> 16) & 0xff);
 	}
-	data[1] = dio200_read8(dev, subpriv->ofs);
-	data[1] |= dio200_read8(dev, subpriv->ofs + 1) << 8;
-	data[1] |= dio200_read8(dev, subpriv->ofs + 2) << 16;
-	return 2;
+
+	val = dio200_read8(dev, subpriv->ofs);
+	val |= dio200_read8(dev, subpriv->ofs + 1) << 8;
+	val |= dio200_read8(dev, subpriv->ofs + 2) << 16;
+
+	data[1] = val;
+
+	return insn->n;
 }
 
 /*
diff --git a/drivers/staging/comedi/drivers/dmm32at.c b/drivers/staging/comedi/drivers/dmm32at.c
index 118a4fd129f9..b04a5633f754 100644
--- a/drivers/staging/comedi/drivers/dmm32at.c
+++ b/drivers/staging/comedi/drivers/dmm32at.c
@@ -596,52 +596,40 @@ static int dmm32at_ao_rinsn(struct comedi_device *dev,
 
 static int dmm32at_dio_insn_bits(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn, unsigned int *data)
+				 struct comedi_insn *insn,
+				 unsigned int *data)
 {
 	struct dmm32at_private *devpriv = dev->private;
-	unsigned char diobits;
-
-	/* The insn data is a mask in data[0] and the new data
-	 * in data[1], each channel cooresponding to a bit. */
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= data[0] & data[1];
-		/* Write out the new digital output lines */
-		/* outw(s->state,dev->iobase + DMM32AT_DIO); */
+	unsigned int mask;
+	unsigned int val;
+
+	mask = comedi_dio_update_state(s, data);
+	if (mask) {
+		/* get access to the DIO regs */
+		outb(DMM32AT_DIOACC, dev->iobase + DMM32AT_CNTRL);
+
+		/* if either part of dio is set for output */
+		if (((devpriv->dio_config & DMM32AT_DIRCL) == 0) ||
+		    ((devpriv->dio_config & DMM32AT_DIRCH) == 0)) {
+			val = (s->state & 0x00ff0000) >> 16;
+			outb(val, dev->iobase + DMM32AT_DIOC);
+		}
+		if ((devpriv->dio_config & DMM32AT_DIRB) == 0) {
+			val = (s->state & 0x0000ff00) >> 8;
+			outb(val, dev->iobase + DMM32AT_DIOB);
+		}
+		if ((devpriv->dio_config & DMM32AT_DIRA) == 0) {
+			val = (s->state & 0x000000ff);
+			outb(val, dev->iobase + DMM32AT_DIOA);
+		}
 	}
 
-	/* get access to the DIO regs */
-	outb(DMM32AT_DIOACC, dev->iobase + DMM32AT_CNTRL);
-
-	/* if either part of dio is set for output */
-	if (((devpriv->dio_config & DMM32AT_DIRCL) == 0) ||
-	    ((devpriv->dio_config & DMM32AT_DIRCH) == 0)) {
-		diobits = (s->state & 0x00ff0000) >> 16;
-		outb(diobits, dev->iobase + DMM32AT_DIOC);
-	}
-	if ((devpriv->dio_config & DMM32AT_DIRB) == 0) {
-		diobits = (s->state & 0x0000ff00) >> 8;
-		outb(diobits, dev->iobase + DMM32AT_DIOB);
-	}
-	if ((devpriv->dio_config & DMM32AT_DIRA) == 0) {
-		diobits = (s->state & 0x000000ff);
-		outb(diobits, dev->iobase + DMM32AT_DIOA);
-	}
+	val = inb(dev->iobase + DMM32AT_DIOA);
+	val |= inb(dev->iobase + DMM32AT_DIOB) << 8;
+	val |= inb(dev->iobase + DMM32AT_DIOC) << 16;
+	s->state = val;
 
-	/* now read the state back in */
-	s->state = inb(dev->iobase + DMM32AT_DIOC);
-	s->state <<= 8;
-	s->state |= inb(dev->iobase + DMM32AT_DIOB);
-	s->state <<= 8;
-	s->state |= inb(dev->iobase + DMM32AT_DIOA);
-	data[1] = s->state;
-
-	/* on return, data[1] contains the value of the digital
-	 * input and output lines. */
-	/* data[1]=inw(dev->iobase + DMM32AT_DIO); */
-	/* or we could just return the software copy of the output values if
-	 * it was a purely digital output subdevice */
-	/* data[1]=s->state; */
+	data[1] = val;
 
 	return insn->n;
 }
diff --git a/drivers/staging/comedi/drivers/dt2817.c b/drivers/staging/comedi/drivers/dt2817.c
index f4a8529239b5..bf589936e546 100644
--- a/drivers/staging/comedi/drivers/dt2817.c
+++ b/drivers/staging/comedi/drivers/dt2817.c
@@ -80,36 +80,31 @@ static int dt2817_dio_insn_config(struct comedi_device *dev,
 
 static int dt2817_dio_insn_bits(struct comedi_device *dev,
 				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
+				struct comedi_insn *insn,
+				unsigned int *data)
 {
-	unsigned int changed;
-
-	/* It's questionable whether it is more important in
-	 * a driver like this to be deterministic or fast.
-	 * We choose fast. */
-
-	if (data[0]) {
-		changed = s->state;
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
-		changed ^= s->state;
-		changed &= s->io_bits;
-		if (changed & 0x000000ff)
-			outb(s->state & 0xff, dev->iobase + DT2817_DATA + 0);
-		if (changed & 0x0000ff00)
-			outb((s->state >> 8) & 0xff,
-			     dev->iobase + DT2817_DATA + 1);
-		if (changed & 0x00ff0000)
-			outb((s->state >> 16) & 0xff,
-			     dev->iobase + DT2817_DATA + 2);
-		if (changed & 0xff000000)
-			outb((s->state >> 24) & 0xff,
-			     dev->iobase + DT2817_DATA + 3);
+	unsigned long iobase = dev->iobase + DT2817_DATA;
+	unsigned int mask;
+	unsigned int val;
+
+	mask = comedi_dio_update_state(s, data);
+	if (mask) {
+		if (mask & 0x000000ff)
+			outb(s->state & 0xff, iobase + 0);
+		if (mask & 0x0000ff00)
+			outb((s->state >> 8) & 0xff, iobase + 1);
+		if (mask & 0x00ff0000)
+			outb((s->state >> 16) & 0xff, iobase + 2);
+		if (mask & 0xff000000)
+			outb((s->state >> 24) & 0xff, iobase + 3);
 	}
-	data[1] = inb(dev->iobase + DT2817_DATA + 0);
-	data[1] |= (inb(dev->iobase + DT2817_DATA + 1) << 8);
-	data[1] |= (inb(dev->iobase + DT2817_DATA + 2) << 16);
-	data[1] |= (inb(dev->iobase + DT2817_DATA + 3) << 24);
+
+	val = inb(iobase + 0);
+	val |= (inb(iobase + 1) << 8);
+	val |= (inb(iobase + 2) << 16);
+	val |= (inb(iobase + 3) << 24);
+
+	data[1] = val;
 
 	return insn->n;
 }
diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index c2745f201f2c..44557c9671ac 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -163,29 +163,29 @@ static int ni6527_di_insn_bits(struct comedi_device *dev,
 
 static int ni6527_do_insn_bits(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
+			       struct comedi_insn *insn,
+			       unsigned int *data)
 {
 	struct ni6527_private *devpriv = dev->private;
+	unsigned int mask;
 
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
-
-		/* The open relay state on the board cooresponds to 1,
-		 * but in Comedi, it is represented by 0. */
-		if (data[0] & 0x0000ff) {
-			writeb((s->state ^ 0xff),
+	mask = comedi_dio_update_state(s, data);
+	if (mask) {
+		/* Outputs are inverted */
+		if (mask & 0x0000ff) {
+			writeb(s->state ^ 0xff,
 			       devpriv->mite->daq_io_addr + Port_Register(3));
 		}
-		if (data[0] & 0x00ff00) {
+		if (mask & 0x00ff00) {
 			writeb((s->state >> 8) ^ 0xff,
 			       devpriv->mite->daq_io_addr + Port_Register(4));
 		}
-		if (data[0] & 0xff0000) {
+		if (mask & 0xff0000) {
 			writeb((s->state >> 16) ^ 0xff,
 			       devpriv->mite->daq_io_addr + Port_Register(5));
 		}
 	}
+
 	data[1] = s->state;
 
 	return insn->n;
diff --git a/drivers/staging/comedi/drivers/ni_daq_700.c b/drivers/staging/comedi/drivers/ni_daq_700.c
index 0ac875f18787..e4cdca349157 100644
--- a/drivers/staging/comedi/drivers/ni_daq_700.c
+++ b/drivers/staging/comedi/drivers/ni_daq_700.c
@@ -72,18 +72,22 @@ Manuals:	Register level:	http://www.ni.com/pdf/manuals/340698.pdf
 
 static int daq700_dio_insn_bits(struct comedi_device *dev,
 				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
+				struct comedi_insn *insn,
+				unsigned int *data)
 {
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
+	unsigned int mask;
+	unsigned int val;
 
-		if (data[0] & 0xff)
+	mask = comedi_dio_update_state(s, data);
+	if (mask) {
+		if (mask & 0xff)
 			outb(s->state & 0xff, dev->iobase + DIO_W);
 	}
 
-	data[1] = s->state & 0xff;
-	data[1] |= inb(dev->iobase + DIO_R) << 8;
+	val = s->state & 0xff;
+	val |= inb(dev->iobase + DIO_R) << 8;
+
+	data[1] = val;
 
 	return insn->n;
 }
diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index e859f85a8e17..53cd1af7ce9d 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -422,19 +422,20 @@ static int pcl711_di_insn_bits(struct comedi_device *dev,
 	return insn->n;
 }
 
-/* Digital port write - Untested on 8112 */
 static int pcl711_do_insn_bits(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
+			       struct comedi_insn *insn,
+			       unsigned int *data)
 {
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= data[0] & data[1];
+	unsigned int mask;
+
+	mask = comedi_dio_update_state(s, data);
+	if (mask) {
+		if (mask & 0x00ff)
+			outb(s->state & 0xff, dev->iobase + PCL711_DO_LO);
+		if (mask & 0xff00)
+			outb((s->state >> 8), dev->iobase + PCL711_DO_HI);
 	}
-	if (data[0] & 0x00ff)
-		outb(s->state & 0xff, dev->iobase + PCL711_DO_LO);
-	if (data[0] & 0xff00)
-		outb((s->state >> 8), dev->iobase + PCL711_DO_HI);
 
 	data[1] = s->state;
 
diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index a4d0bcc31e52..32fb57a7fa26 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -196,18 +196,19 @@ static int pcl726_di_insn_bits(struct comedi_device *dev,
 
 static int pcl726_do_insn_bits(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
+			       struct comedi_insn *insn,
+			       unsigned int *data)
 {
 	const struct pcl726_board *board = comedi_board(dev);
-
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= data[0] & data[1];
+	unsigned int mask;
+
+	mask = comedi_dio_update_state(s, data);
+	if (mask) {
+		if (mask & 0x00ff)
+			outb(s->state & 0xff, dev->iobase + board->do_lo);
+		if (mask & 0xff00)
+			outb((s->state >> 8), dev->iobase + board->do_hi);
 	}
-	if (data[1] & 0x00ff)
-		outb(s->state & 0xff, dev->iobase + board->do_lo);
-	if (data[1] & 0xff00)
-		outb((s->state >> 8), dev->iobase + board->do_hi);
 
 	data[1] = s->state;
 
diff --git a/drivers/staging/comedi/drivers/pcl730.c b/drivers/staging/comedi/drivers/pcl730.c
index 2a659f23ecda..d041b714db29 100644
--- a/drivers/staging/comedi/drivers/pcl730.c
+++ b/drivers/staging/comedi/drivers/pcl730.c
@@ -167,20 +167,17 @@ static int pcl730_do_insn_bits(struct comedi_device *dev,
 			       unsigned int *data)
 {
 	unsigned long reg = (unsigned long)s->private;
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
+	unsigned int mask;
 
+	mask = comedi_dio_update_state(s, data);
 	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
-
 		if (mask & 0x00ff)
 			outb(s->state & 0xff, dev->iobase + reg);
-		if ((mask & 0xff00) && (s->n_chan > 8))
+		if ((mask & 0xff00) & (s->n_chan > 8))
 			outb((s->state >> 8) & 0xff, dev->iobase + reg + 1);
-		if ((mask & 0xff0000) && (s->n_chan > 16))
+		if ((mask & 0xff0000) & (s->n_chan > 16))
 			outb((s->state >> 16) & 0xff, dev->iobase + reg + 2);
-		if ((mask & 0xff000000) && (s->n_chan > 24))
+		if ((mask & 0xff000000) & (s->n_chan > 24))
 			outb((s->state >> 24) & 0xff, dev->iobase + reg + 3);
 	}
 
-- 
cgit 


From 6171667a81fd650082c83df1d417e152686483ab Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:06:38 -0700
Subject: staging: comedi: ni_mio_common: use comedi_dio_update_state()

Use comedi_dio_update_state() to handle the boilerplate code to update
the subdevice s->state.

Remove the DEBUG_DIO, its just added noise.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_mio_common.c | 45 +++++++++-----------------
 1 file changed, 16 insertions(+), 29 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c
index 4e02770e834b..b9df2eeae6fb 100644
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ b/drivers/staging/comedi/drivers/ni_mio_common.c
@@ -3547,28 +3547,22 @@ static int ni_dio_insn_config(struct comedi_device *dev,
 
 static int ni_dio_insn_bits(struct comedi_device *dev,
 			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn, unsigned int *data)
+			    struct comedi_insn *insn,
+			    unsigned int *data)
 {
 	struct ni_private *devpriv = dev->private;
 
-#ifdef DEBUG_DIO
-	printk("ni_dio_insn_bits() mask=0x%x bits=0x%x\n", data[0], data[1]);
-#endif
-
-	if (data[0]) {
-		/* Perform check to make sure we're not using the
-		   serial part of the dio */
-		if ((data[0] & (DIO_SDIN | DIO_SDOUT))
-		    && devpriv->serial_interval_ns)
-			return -EBUSY;
+	/* Make sure we're not using the serial part of the dio */
+	if ((data[0] & (DIO_SDIN | DIO_SDOUT)) && devpriv->serial_interval_ns)
+		return -EBUSY;
 
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
+	if (comedi_dio_update_state(s, data)) {
 		devpriv->dio_output &= ~DIO_Parallel_Data_Mask;
 		devpriv->dio_output |= DIO_Parallel_Data_Out(s->state);
 		devpriv->stc_writew(dev, devpriv->dio_output,
 				    DIO_Output_Register);
 	}
+
 	data[1] = devpriv->stc_readw(dev, DIO_Parallel_Input_Register);
 
 	return insn->n;
@@ -3598,16 +3592,9 @@ static int ni_m_series_dio_insn_bits(struct comedi_device *dev,
 {
 	struct ni_private *devpriv __maybe_unused = dev->private;
 
-#ifdef DEBUG_DIO
-	printk("ni_m_series_dio_insn_bits() mask=0x%x bits=0x%x\n", data[0],
-	       data[1]);
-#endif
-
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
+	if (comedi_dio_update_state(s, data))
 		ni_writel(s->state, M_Offset_Static_Digital_Output);
-	}
+
 	data[1] = ni_readl(M_Offset_Static_Digital_Input);
 
 	return insn->n;
@@ -5355,20 +5342,20 @@ static int ni_config_filter(struct comedi_device *dev, unsigned pfi_channel,
 
 static int ni_pfi_insn_bits(struct comedi_device *dev,
 			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn, unsigned int *data)
+			    struct comedi_insn *insn,
+			    unsigned int *data)
 {
 	const struct ni_board_struct *board = comedi_board(dev);
 	struct ni_private *devpriv __maybe_unused = dev->private;
 
-	if ((board->reg_type & ni_reg_m_series_mask) == 0) {
+	if (!(board->reg_type & ni_reg_m_series_mask))
 		return -ENOTSUPP;
-	}
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
+
+	if (comedi_dio_update_state(s, data))
 		ni_writew(s->state, M_Offset_PFI_DO);
-	}
+
 	data[1] = ni_readw(M_Offset_PFI_DI);
+
 	return insn->n;
 }
 
-- 
cgit 


From 6f617e544b26d4232659402da42924e8cd6b1eaf Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:06:58 -0700
Subject: staging: comedi: vmk80xx: use comedi_dio_update_state()

Use comedi_dio_update_state() to handle the boilerplate code to update
the subdevice s->state.

Tidy up the vmk80xx_do_insn_bits() function a bit.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/vmk80xx.c | 35 ++++++++++++--------------------
 1 file changed, 13 insertions(+), 22 deletions(-)

diff --git a/drivers/staging/comedi/drivers/vmk80xx.c b/drivers/staging/comedi/drivers/vmk80xx.c
index 06efa16b9af2..933b01a0f03d 100644
--- a/drivers/staging/comedi/drivers/vmk80xx.c
+++ b/drivers/staging/comedi/drivers/vmk80xx.c
@@ -462,9 +462,10 @@ static int vmk80xx_do_insn_bits(struct comedi_device *dev,
 				unsigned int *data)
 {
 	struct vmk80xx_private *devpriv = dev->private;
-	unsigned char *rx_buf, *tx_buf;
+	unsigned char *rx_buf = devpriv->usb_rx_buf;
+	unsigned char *tx_buf = devpriv->usb_tx_buf;
 	int reg, cmd;
-	int retval;
+	int ret;
 
 	if (devpriv->model == VMK8061_MODEL) {
 		reg = VMK8061_DO_REG;
@@ -476,37 +477,27 @@ static int vmk80xx_do_insn_bits(struct comedi_device *dev,
 
 	down(&devpriv->limit_sem);
 
-	rx_buf = devpriv->usb_rx_buf;
-	tx_buf = devpriv->usb_tx_buf;
-
-	if (data[0]) {
-		tx_buf[reg] &= ~data[0];
-		tx_buf[reg] |= (data[0] & data[1]);
-
-		retval = vmk80xx_write_packet(dev, cmd);
-
-		if (retval)
+	if (comedi_dio_update_state(s, data)) {
+		tx_buf[reg] = s->state;
+		ret = vmk80xx_write_packet(dev, cmd);
+		if (ret)
 			goto out;
 	}
 
 	if (devpriv->model == VMK8061_MODEL) {
 		tx_buf[0] = VMK8061_CMD_RD_DO;
-
-		retval = vmk80xx_read_packet(dev);
-
-		if (!retval) {
-			data[1] = rx_buf[reg];
-			retval = 2;
-		}
+		ret = vmk80xx_read_packet(dev);
+		if (ret)
+			goto out;
+		data[1] = rx_buf[reg];
 	} else {
-		data[1] = tx_buf[reg];
-		retval = 2;
+		data[1] = s->state;
 	}
 
 out:
 	up(&devpriv->limit_sem);
 
-	return retval;
+	return ret ? ret : insn->n;
 }
 
 static int vmk80xx_cnt_insn_read(struct comedi_device *dev,
-- 
cgit 


From ebf33d0479b0e61c9f1cf35a29bcb65cc5e14a44 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:07:17 -0700
Subject: staging: comedi: das08: remove do_bits from private data

Use the subdevice 'state' variable instead of carrying the state of
the output channels in the private data.

Use comedi_dio_update_state() to handle the boilerplate code to update
the subdevice s->state.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/das08.c | 14 +++++---------
 drivers/staging/comedi/drivers/das08.h |  1 -
 2 files changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/comedi/drivers/das08.c b/drivers/staging/comedi/drivers/das08.c
index 5f669709501f..1add6fb883f5 100644
--- a/drivers/staging/comedi/drivers/das08.c
+++ b/drivers/staging/comedi/drivers/das08.c
@@ -316,17 +316,13 @@ static int das08jr_di_rbits(struct comedi_device *dev,
 
 static int das08jr_do_wbits(struct comedi_device *dev,
 			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn, unsigned int *data)
+			    struct comedi_insn *insn,
+			    unsigned int *data)
 {
-	struct das08_private_struct *devpriv = dev->private;
-
-	/*  null bits we are going to set */
-	devpriv->do_bits &= ~data[0];
-	/*  set new bit values */
-	devpriv->do_bits |= data[0] & data[1];
-	outb(devpriv->do_bits, dev->iobase + DAS08JR_DIO);
+	if (comedi_dio_update_state(s, data))
+		outb(s->state, dev->iobase + DAS08JR_DIO);
 
-	data[1] = devpriv->do_bits;
+	data[1] = s->state;
 
 	return insn->n;
 }
diff --git a/drivers/staging/comedi/drivers/das08.h b/drivers/staging/comedi/drivers/das08.h
index cce1b584200a..46a314c5113e 100644
--- a/drivers/staging/comedi/drivers/das08.h
+++ b/drivers/staging/comedi/drivers/das08.h
@@ -41,7 +41,6 @@ struct das08_board_struct {
 
 struct das08_private_struct {
 	unsigned int do_mux_bits;	/*  bits for do/mux register on boards without separate do register */
-	unsigned int do_bits;	/*  bits for do register on boards with register dedicated to digital out only */
 	const unsigned int *pg_gainlist;
 	unsigned int ao_readback[2];	/* assume 2 AO channels */
 };
-- 
cgit 


From 4800fee7e09a948f5ad8d1eb081f7b7f503e9a61 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:07:35 -0700
Subject: staging: comedi: das08: use s->state in das08_do_wbits()

Use the subdevice 'state' variable instead of having to calculate the
current state based on the do_mux_bits in the private data.

Use comedi_dio_update_state() to handle the boilerplate code to update
the subdevice s->state.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/das08.c | 32 ++++++++++++++------------------
 1 file changed, 14 insertions(+), 18 deletions(-)

diff --git a/drivers/staging/comedi/drivers/das08.c b/drivers/staging/comedi/drivers/das08.c
index 1add6fb883f5..15dd33e3e1c7 100644
--- a/drivers/staging/comedi/drivers/das08.c
+++ b/drivers/staging/comedi/drivers/das08.c
@@ -279,27 +279,23 @@ static int das08_di_rbits(struct comedi_device *dev, struct comedi_subdevice *s,
 	return insn->n;
 }
 
-static int das08_do_wbits(struct comedi_device *dev, struct comedi_subdevice *s,
-			  struct comedi_insn *insn, unsigned int *data)
+static int das08_do_wbits(struct comedi_device *dev,
+			  struct comedi_subdevice *s,
+			  struct comedi_insn *insn,
+			  unsigned int *data)
 {
 	struct das08_private_struct *devpriv = dev->private;
-	int wbits;
-
-	/*  get current settings of digital output lines */
-	wbits = (devpriv->do_mux_bits >> 4) & 0xf;
-	/*  null bits we are going to set */
-	wbits &= ~data[0];
-	/*  set new bit values */
-	wbits |= data[0] & data[1];
-	/*  remember digital output bits */
-	/*  prevent race with setting of analog input mux */
-	spin_lock(&dev->spinlock);
-	devpriv->do_mux_bits &= ~DAS08_DO_MASK;
-	devpriv->do_mux_bits |= DAS08_OP(wbits);
-	outb(devpriv->do_mux_bits, dev->iobase + DAS08_CONTROL);
-	spin_unlock(&dev->spinlock);
 
-	data[1] = wbits;
+	if (comedi_dio_update_state(s, data)) {
+		/* prevent race with setting of analog input mux */
+		spin_lock(&dev->spinlock);
+		devpriv->do_mux_bits &= ~DAS08_DO_MASK;
+		devpriv->do_mux_bits |= DAS08_OP(s->state);
+		outb(devpriv->do_mux_bits, dev->iobase + DAS08_CONTROL);
+		spin_unlock(&dev->spinlock);
+	}
+
+	data[1] = s->state;
 
 	return insn->n;
 }
-- 
cgit 


From 8c32d5dabc663066a0dc1e0f2266b18ef4347d34 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:07:52 -0700
Subject: staging: comedi: das1800: remove do_bits from private data

Use the subdevice 'state' variable instead of carrying the state of
the output channels in the private data.

Use comedi_dio_update_state() to handle the boilerplate code to update
the subdevice s->state.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/das1800.c | 22 ++++++----------------
 1 file changed, 6 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c
index 5b300294d322..8b9a0a66b5a5 100644
--- a/drivers/staging/comedi/drivers/das1800.c
+++ b/drivers/staging/comedi/drivers/das1800.c
@@ -427,7 +427,6 @@ struct das1800_private {
 	volatile unsigned int count;	/* number of data points left to be taken */
 	unsigned int divisor1;	/* value to load into board's counter 1 for timed conversions */
 	unsigned int divisor2;	/* value to load into board's counter 2 for timed conversions */
-	int do_bits;		/* digital output bits */
 	int irq_dma_bits;	/* bits for control register b */
 	/* dma bits for control register b, stored so that dma can be
 	 * turned on and off */
@@ -1319,24 +1318,15 @@ static int das1800_di_rbits(struct comedi_device *dev,
 	return insn->n;
 }
 
-/* writes to digital output channels */
 static int das1800_do_wbits(struct comedi_device *dev,
 			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn, unsigned int *data)
+			    struct comedi_insn *insn,
+			    unsigned int *data)
 {
-	struct das1800_private *devpriv = dev->private;
-	unsigned int wbits;
-
-	/*  only set bits that have been masked */
-	data[0] &= (1 << s->n_chan) - 1;
-	wbits = devpriv->do_bits;
-	wbits &= ~data[0];
-	wbits |= data[0] & data[1];
-	devpriv->do_bits = wbits;
-
-	outb(devpriv->do_bits, dev->iobase + DAS1800_DIGITAL);
+	if (comedi_dio_update_state(s, data))
+		outb(s->state, dev->iobase + DAS1800_DIGITAL);
 
-	data[1] = devpriv->do_bits;
+	data[1] = s->state;
 
 	return insn->n;
 }
@@ -1644,7 +1634,7 @@ static int das1800_attach(struct comedi_device *dev,
 	das1800_cancel(dev, dev->read_subdev);
 
 	/*  initialize digital out channels */
-	outb(devpriv->do_bits, dev->iobase + DAS1800_DIGITAL);
+	outb(0, dev->iobase + DAS1800_DIGITAL);
 
 	/*  initialize analog out channels */
 	if (thisboard->ao_ability == 1) {
-- 
cgit 


From e49242a4d50d88af21beccd3d35c066381397cca Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:08:12 -0700
Subject: staging: comedi: das16m1: remove do_bits from private data

Use the subdevice 'state' variable instead of carrying the state of
the output channels in the private data.

Use comedi_dio_update_state() to handle the boilerplate code to update
the subdevice s->state.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/das16m1.c | 22 ++++++----------------
 1 file changed, 6 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/comedi/drivers/das16m1.c b/drivers/staging/comedi/drivers/das16m1.c
index b943c449b691..187b0a1c378b 100644
--- a/drivers/staging/comedi/drivers/das16m1.c
+++ b/drivers/staging/comedi/drivers/das16m1.c
@@ -134,7 +134,6 @@ struct das16m1_private_struct {
 	 * counter yet (loaded by first sample conversion) */
 	u16 initial_hw_count;
 	short ai_buffer[FIFO_SIZE];
-	unsigned int do_bits;	/*  saves status of digital output bits */
 	unsigned int divisor1;	/*  divides master clock to obtain conversion speed */
 	unsigned int divisor2;	/*  divides master clock to obtain conversion speed */
 	unsigned long extra_iobase;
@@ -393,22 +392,13 @@ static int das16m1_di_rbits(struct comedi_device *dev,
 
 static int das16m1_do_wbits(struct comedi_device *dev,
 			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn, unsigned int *data)
+			    struct comedi_insn *insn,
+			    unsigned int *data)
 {
-	struct das16m1_private_struct *devpriv = dev->private;
-	unsigned int wbits;
-
-	/*  only set bits that have been masked */
-	data[0] &= 0xf;
-	wbits = devpriv->do_bits;
-	/*  zero bits that have been masked */
-	wbits &= ~data[0];
-	/*  set masked bits */
-	wbits |= data[0] & data[1];
-	devpriv->do_bits = wbits;
-	data[1] = wbits;
+	if (comedi_dio_update_state(s, data))
+		outb(s->state, dev->iobase + DAS16M1_DIO);
 
-	outb(devpriv->do_bits, dev->iobase + DAS16M1_DIO);
+	data[1] = s->state;
 
 	return insn->n;
 }
@@ -649,7 +639,7 @@ static int das16m1_attach(struct comedi_device *dev,
 	outb(TOTAL_CLEAR, dev->iobase + DAS16M1_8254_FIRST_CNTRL);
 
 	/*  initialize digital output lines */
-	outb(devpriv->do_bits, dev->iobase + DAS16M1_DIO);
+	outb(0, dev->iobase + DAS16M1_DIO);
 
 	/* set the interrupt level */
 	if (dev->irq)
-- 
cgit 


From b2c20d154a296f0d2b4641b5f8369745a811a035 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:08:31 -0700
Subject: staging: comedi: adq12b: remove digital_state from private data

Use the subdevice 'state' variable instead of carrying the state of
the output channels in the private data.

Use comedi_dio_update_state() to handle the boilerplate code to update
the subdevice s->state.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/adq12b.c | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/comedi/drivers/adq12b.c b/drivers/staging/comedi/drivers/adq12b.c
index cdf5ba26c590..8150a67cd1fb 100644
--- a/drivers/staging/comedi/drivers/adq12b.c
+++ b/drivers/staging/comedi/drivers/adq12b.c
@@ -119,7 +119,6 @@ struct adq12b_private {
 	int differential;	/* option 3 of comedi_config */
 	int last_channel;
 	int last_range;
-	unsigned int digital_state;
 };
 
 /*
@@ -186,23 +185,25 @@ static int adq12b_di_insn_bits(struct comedi_device *dev,
 
 static int adq12b_do_insn_bits(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
+			       struct comedi_insn *insn,
+			       unsigned int *data)
 {
-	struct adq12b_private *devpriv = dev->private;
-	int channel;
-
-	for (channel = 0; channel < 8; channel++)
-		if (((data[0] >> channel) & 0x01) != 0)
-			outb((((data[1] >> channel) & 0x01) << 3) | channel,
-			     dev->iobase + ADQ12B_OUTBR);
-
-	/* store information to retrieve when asked for reading */
-	if (data[0]) {
-		devpriv->digital_state &= ~data[0];
-		devpriv->digital_state |= (data[0] & data[1]);
+	unsigned int mask;
+	unsigned int chan;
+	unsigned int val;
+
+	mask = comedi_dio_update_state(s, data);
+	if (mask) {
+		for (chan = 0; chan < 8; chan++) {
+			if ((mask >> chan) & 0x01) {
+				val = (s->state >> chan) & 0x01;
+				outb((val << 3) | chan,
+				     dev->iobase + ADQ12B_OUTBR);
+			}
+		}
 	}
 
-	data[1] = devpriv->digital_state;
+	data[1] = s->state;
 
 	return insn->n;
 }
@@ -223,7 +224,6 @@ static int adq12b_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	devpriv->unipolar = it->options[1];
 	devpriv->differential = it->options[2];
-	devpriv->digital_state = 0;
 	/*
 	 * initialize channel and range to -1 so we make sure we
 	 * always write at least once to the CTREG in the instruction
-- 
cgit 


From f6b316bcd8c421acd6fa5a6e18b4c846ecb9d965 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:08:50 -0700
Subject: staging: comedi: ssv_dnp: use comedi_dio_update_state()

Use comedi_dio_update_state() to handle the boilerplate code to update
the subdevice s->state.

Also, fix a bug where the state of the channels is returned in data[0].
The comedi core expects it to be returned in data[1].

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ssv_dnp.c | 48 +++++++++++++-------------------
 1 file changed, 20 insertions(+), 28 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ssv_dnp.c b/drivers/staging/comedi/drivers/ssv_dnp.c
index 11758a515c1b..df22a78d2b7e 100644
--- a/drivers/staging/comedi/drivers/ssv_dnp.c
+++ b/drivers/staging/comedi/drivers/ssv_dnp.c
@@ -46,51 +46,43 @@ Status: unknown
 #define PCMR  0xa3		/* Port C Mode Register                      */
 #define PCDR  0xa7		/* Port C Data Register                      */
 
-/* ------------------------------------------------------------------------- */
-/* The insn_bits interface allows packed reading/writing of DIO channels.    */
-/* The comedi core can convert between insn_bits and insn_read/write, so you */
-/* are able to use these instructions as well.                               */
-/* ------------------------------------------------------------------------- */
-
 static int dnp_dio_insn_bits(struct comedi_device *dev,
 			     struct comedi_subdevice *s,
-			     struct comedi_insn *insn, unsigned int *data)
+			     struct comedi_insn *insn,
+			     unsigned int *data)
 {
-	/* The insn data is a mask in data[0] and the new data in data[1],   */
-	/* each channel cooresponding to a bit.                              */
-
-	/* Ports A and B are straight forward: each bit corresponds to an    */
-	/* output pin with the same order. Port C is different: bits 0...3   */
-	/* correspond to bits 4...7 of the output register (PCDR).           */
+	unsigned int mask;
+	unsigned int val;
 
-	if (data[0]) {
+	/*
+	 * Ports A and B are straight forward: each bit corresponds to an
+	 * output pin with the same order. Port C is different: bits 0...3
+	 * correspond to bits 4...7 of the output register (PCDR).
+	 */
 
+	mask = comedi_dio_update_state(s, data);
+	if (mask) {
 		outb(PADR, CSCIR);
-		outb((inb(CSCDR)
-		      & ~(u8) (data[0] & 0x0000FF))
-		     | (u8) (data[1] & 0x0000FF), CSCDR);
+		outb(s->state & 0xff, CSCDR);
 
 		outb(PBDR, CSCIR);
-		outb((inb(CSCDR)
-		      & ~(u8) ((data[0] & 0x00FF00) >> 8))
-		     | (u8) ((data[1] & 0x00FF00) >> 8), CSCDR);
+		outb((s->state >> 8) & 0xff, CSCDR);
 
 		outb(PCDR, CSCIR);
-		outb((inb(CSCDR)
-		      & ~(u8) ((data[0] & 0x0F0000) >> 12))
-		     | (u8) ((data[1] & 0x0F0000) >> 12), CSCDR);
+		val = inb(CSCDR) & 0x0f;
+		outb(((s->state >> 12) & 0xf0) | val, CSCDR);
 	}
 
-	/* on return, data[1] contains the value of the digital input lines. */
 	outb(PADR, CSCIR);
-	data[0] = inb(CSCDR);
+	val = inb(CSCDR);
 	outb(PBDR, CSCIR);
-	data[0] += inb(CSCDR) << 8;
+	val |= (inb(CSCDR) << 8);
 	outb(PCDR, CSCIR);
-	data[0] += ((inb(CSCDR) & 0xF0) << 12);
+	val |= ((inb(CSCDR) & 0xf0) << 12);
 
-	return insn->n;
+	data[1] = val;
 
+	return insn->n;
 }
 
 static int dnp_dio_insn_config(struct comedi_device *dev,
-- 
cgit 


From 2da43beab0534f5c0d36e05d84659b8d5c825569 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:09:07 -0700
Subject: staging: comedi: hwdrv_apci3120: use comedi_dio_update_state()

Use comedi_dio_update_state() to handle the boilerplate code to update
the subdevice s->state.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../staging/comedi/drivers/addi-data/hwdrv_apci3120.c   | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
index 1449b92403e2..ac6e75d62e61 100644
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
+++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
@@ -2175,21 +2175,16 @@ static int apci3120_do_insn_bits(struct comedi_device *dev,
 				 unsigned int *data)
 {
 	struct addi_private *devpriv = dev->private;
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
-	unsigned int val;
 
-	/* The do channels are bits 7:4 of the do register */
-	val = devpriv->b_DigitalOutputRegister >> 4;
-	if (mask) {
-		val &= ~mask;
-		val |= (bits & mask);
-		devpriv->b_DigitalOutputRegister = val << 4;
+	if (comedi_dio_update_state(s, data)) {
+		/* The do channels are bits 7:4 of the do register */
+		devpriv->b_DigitalOutputRegister = s->state << 4;
 
-		outb(val << 4, devpriv->iobase + APCI3120_DIGITAL_OUTPUT);
+		outb(devpriv->b_DigitalOutputRegister,
+		     devpriv->iobase + APCI3120_DIGITAL_OUTPUT);
 	}
 
-	data[1] = val;
+	data[1] = s->state;
 
 	return insn->n;
 }
-- 
cgit 


From a485f4d60e7de92b65e3f03ccd6c3b8cb0062c32 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:09:27 -0700
Subject: staging: comedi: addi_apci_16xx: use comedi_dio_update_state()

The extra mask used to only update the channels configured as outputs is
not necessary in this driver. Remove it and use comedi_dio_update_state()
to handle the boilerplate code to update the subdevice s->state.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/addi_apci_16xx.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/staging/comedi/drivers/addi_apci_16xx.c b/drivers/staging/comedi/drivers/addi_apci_16xx.c
index 96523744b8de..5ee204bcbeef 100644
--- a/drivers/staging/comedi/drivers/addi_apci_16xx.c
+++ b/drivers/staging/comedi/drivers/addi_apci_16xx.c
@@ -87,17 +87,8 @@ static int apci16xx_dio_insn_bits(struct comedi_device *dev,
 				  struct comedi_insn *insn,
 				  unsigned int *data)
 {
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
-
-	/* Only update the channels configured as outputs */
-	mask &= s->io_bits;
-	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
-
+	if (comedi_dio_update_state(s, data))
 		outl(s->state, dev->iobase + APCI16XX_OUT_REG(s->index));
-	}
 
 	data[1] = inl(dev->iobase + APCI16XX_IN_REG(s->index));
 
-- 
cgit 


From ca5d4a20fb65a2ab2ad3c2797d7639d3dc64c147 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:09:44 -0700
Subject: staging: comedi: addi_apci_3xxx: use comedi_dio_update_state()

The extra mask used to only update the channels configured as outputs is
not necessary in this driver. Remove it and use comedi_dio_update_state()
to handle the boilerplate code to update the subdevice s->state.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/addi_apci_3xxx.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/comedi/drivers/addi_apci_3xxx.c b/drivers/staging/comedi/drivers/addi_apci_3xxx.c
index fcec604bebf7..761cbf8f964b 100644
--- a/drivers/staging/comedi/drivers/addi_apci_3xxx.c
+++ b/drivers/staging/comedi/drivers/addi_apci_3xxx.c
@@ -711,16 +711,11 @@ static int apci3xxx_dio_insn_bits(struct comedi_device *dev,
 				  struct comedi_insn *insn,
 				  unsigned int *data)
 {
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
+	unsigned int mask;
 	unsigned int val;
 
-	/* only update output channels */
-	mask &= s->io_bits;
+	mask = comedi_dio_update_state(s, data);
 	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
-
 		if (mask & 0xff)
 			outl(s->state & 0xff, dev->iobase + 80);
 		if (mask & 0xff0000)
-- 
cgit 


From 9b13bc1d4ab0c5abc1b29d4fa95a41bf02238d2a Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:10:01 -0700
Subject: staging: comedi: ii_pci20kc: use comedi_dio_update_state()

The extra mask used to only update the channels configured as outputs is
not necessary in this driver. Remove it and use comedi_dio_update_state()
to handle the boilerplate code to update the subdevice s->state.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ii_pci20kc.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ii_pci20kc.c b/drivers/staging/comedi/drivers/ii_pci20kc.c
index 5c3a318b4640..8577778441fa 100644
--- a/drivers/staging/comedi/drivers/ii_pci20kc.c
+++ b/drivers/staging/comedi/drivers/ii_pci20kc.c
@@ -378,13 +378,10 @@ static int ii20k_dio_insn_bits(struct comedi_device *dev,
 			       unsigned int *data)
 {
 	struct ii20k_private *devpriv = dev->private;
-	unsigned int mask = data[0] & s->io_bits;	/* outputs only */
-	unsigned int bits = data[1];
+	unsigned int mask;
 
+	mask = comedi_dio_update_state(s, data);
 	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
-
 		if (mask & 0x000000ff)
 			writeb((s->state >> 0) & 0xff,
 			       devpriv->ioaddr + II20K_DIO0_REG);
-- 
cgit 


From b523c2b2ec56939ddc39a33682f402929c70f4a0 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:10:20 -0700
Subject: staging: comedi: me4000: use comedi_dio_update_state()

The extra mask used to only update the channels configured as outputs is
not necessary in this driver. Remove it and use comedi_dio_update_state()
to handle the boilerplate code to update the subdevice s->state.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/me4000.c | 25 +++----------------------
 1 file changed, 3 insertions(+), 22 deletions(-)

diff --git a/drivers/staging/comedi/drivers/me4000.c b/drivers/staging/comedi/drivers/me4000.c
index 8f4afadab76a..aba7beae8e86 100644
--- a/drivers/staging/comedi/drivers/me4000.c
+++ b/drivers/staging/comedi/drivers/me4000.c
@@ -1313,29 +1313,12 @@ static int me4000_ao_insn_read(struct comedi_device *dev,
 	return 1;
 }
 
-/*=============================================================================
-  Digital I/O section
-  ===========================================================================*/
-
 static int me4000_dio_insn_bits(struct comedi_device *dev,
 				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
+				struct comedi_insn *insn,
+				unsigned int *data)
 {
-	/*
-	 * The insn data consists of a mask in data[0] and the new data
-	 * in data[1]. The mask defines which bits we are concerning about.
-	 * The new data must be anded with the mask.
-	 * Each channel corresponds to a bit.
-	 */
-	if (data[0]) {
-		/* Check if requested ports are configured for output */
-		if ((s->io_bits & data[0]) != data[0])
-			return -EIO;
-
-		s->state &= ~data[0];
-		s->state |= data[0] & data[1];
-
-		/* Write out the new digital output lines */
+	if (comedi_dio_update_state(s, data)) {
 		outl((s->state >> 0) & 0xFF,
 			    dev->iobase + ME4000_DIO_PORT_0_REG);
 		outl((s->state >> 8) & 0xFF,
@@ -1346,8 +1329,6 @@ static int me4000_dio_insn_bits(struct comedi_device *dev,
 			    dev->iobase + ME4000_DIO_PORT_3_REG);
 	}
 
-	/* On return, data[1] contains the value of
-	   the digital input and output lines. */
 	data[1] = ((inl(dev->iobase + ME4000_DIO_PORT_0_REG) & 0xFF) << 0) |
 		  ((inl(dev->iobase + ME4000_DIO_PORT_1_REG) & 0xFF) << 8) |
 		  ((inl(dev->iobase + ME4000_DIO_PORT_2_REG) & 0xFF) << 16) |
-- 
cgit 


From 1cc5a338674d468b8995add959b9c2eef23ecc7d Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:10:39 -0700
Subject: staging: comedi: me_daq: use comedi_dio_update_state()

The extra mask used to only update the channels configured as outputs is
not necessary in this driver. Remove it and use comedi_dio_update_state()
to handle the boilerplate code to update the subdevice s->state.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/me_daq.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/comedi/drivers/me_daq.c b/drivers/staging/comedi/drivers/me_daq.c
index 00ebf4dd78fb..24ec9ef9b1a0 100644
--- a/drivers/staging/comedi/drivers/me_daq.c
+++ b/drivers/staging/comedi/drivers/me_daq.c
@@ -222,15 +222,11 @@ static int me_dio_insn_bits(struct comedi_device *dev,
 	struct me_private_data *dev_private = dev->private;
 	void __iomem *mmio_porta = dev_private->me_regbase + ME_DIO_PORT_A;
 	void __iomem *mmio_portb = dev_private->me_regbase + ME_DIO_PORT_B;
-	unsigned int mask = data[0];
-	unsigned int bits = data[1];
+	unsigned int mask;
 	unsigned int val;
 
-	mask &= s->io_bits;	/* only update the COMEDI_OUTPUT channels */
+	mask = comedi_dio_update_state(s, data);
 	if (mask) {
-		s->state &= ~mask;
-		s->state |= (bits & mask);
-
 		if (mask & 0x0000ffff)
 			writew((s->state & 0xffff), mmio_porta);
 		if (mask & 0xffff0000)
-- 
cgit 


From 6ea79c1d8005aedfe53ad040c7bd6aa67a767031 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:10:56 -0700
Subject: staging: comedi: s626: use comedi_dio_update_state()

The extra mask used to only update the channels configured as outputs is
not necessary in this driver. Remove it and use comedi_dio_update_state()
to handle the boilerplate code to update the subdevice s->state.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index d22b95dcb9bd..4eb4e7160bc3 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -1638,19 +1638,10 @@ static int s626_dio_insn_bits(struct comedi_device *dev,
 			      unsigned int *data)
 {
 	unsigned long group = (unsigned long)s->private;
-	unsigned long mask = data[0];
-	unsigned long bits = data[1];
-
-	if (mask) {
-		/* Check if requested channels are configured for output */
-		if ((s->io_bits & mask) != mask)
-			return -EIO;
-
-		s->state &= ~mask;
-		s->state |= (bits & mask);
 
+	if (comedi_dio_update_state(s, data))
 		DEBIwrite(dev, LP_WRDOUT(group), s->state);
-	}
+
 	data[1] = DEBIread(dev, LP_RDDIN(group));
 
 	return insn->n;
-- 
cgit 


From 5790b4279b204c839115e6838ff13071ca295679 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:44:19 -0700
Subject: staging: comedi: comedi_parport: tidy up the register map

Rename the register map defines to better describe the hardware.

Add defines for the control register bits that enable the irq and
change the direction of the data register. This gets rid of the
"magic" numbers.

Remove PARPORT_SIZE, it's only used when requesting the i/o region
with comedi_request_region().

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/comedi_parport.c | 41 +++++++++++++------------
 1 file changed, 22 insertions(+), 19 deletions(-)

diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index f28a15f0274e..72b07717ada1 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -82,11 +82,14 @@ pin, which can be used to wake up tasks.
 
 #include "comedi_fc.h"
 
-#define PARPORT_SIZE 3
-
-#define PARPORT_A 0
-#define PARPORT_B 1
-#define PARPORT_C 2
+/*
+ * Register map
+ */
+#define PARPORT_DATA_REG	0x00
+#define PARPORT_STATUS_REG	0x01
+#define PARPORT_CTRL_REG	0x02
+#define PARPORT_CTRL_IRQ_ENA	(1 << 4)
+#define PARPORT_CTRL_BIDIR_ENA	(1 << 5)
 
 struct parport_private {
 	unsigned int a_data;
@@ -103,10 +106,10 @@ static int parport_insn_a(struct comedi_device *dev, struct comedi_subdevice *s,
 		devpriv->a_data &= ~data[0];
 		devpriv->a_data |= (data[0] & data[1]);
 
-		outb(devpriv->a_data, dev->iobase + PARPORT_A);
+		outb(devpriv->a_data, dev->iobase + PARPORT_DATA_REG);
 	}
 
-	data[1] = inb(dev->iobase + PARPORT_A);
+	data[1] = inb(dev->iobase + PARPORT_DATA_REG);
 
 	return insn->n;
 }
@@ -119,12 +122,12 @@ static int parport_insn_config_a(struct comedi_device *dev,
 
 	if (data[0]) {
 		s->io_bits = 0xff;
-		devpriv->c_data &= ~(1 << 5);
+		devpriv->c_data &= ~PARPORT_CTRL_BIDIR_ENA;
 	} else {
 		s->io_bits = 0;
-		devpriv->c_data |= (1 << 5);
+		devpriv->c_data |= PARPORT_CTRL_BIDIR_ENA;
 	}
-	outb(devpriv->c_data, dev->iobase + PARPORT_C);
+	outb(devpriv->c_data, dev->iobase + PARPORT_CTRL_REG);
 
 	return 1;
 }
@@ -137,7 +140,7 @@ static int parport_insn_b(struct comedi_device *dev, struct comedi_subdevice *s,
 		/* anyone??? */
 	}
 
-	data[1] = (inb(dev->iobase + PARPORT_B) >> 3);
+	data[1] = (inb(dev->iobase + PARPORT_STATUS_REG) >> 3);
 
 	return insn->n;
 }
@@ -152,7 +155,7 @@ static int parport_insn_c(struct comedi_device *dev, struct comedi_subdevice *s,
 		devpriv->c_data &= ~data[0];
 		devpriv->c_data |= (data[0] & data[1]);
 
-		outb(devpriv->c_data, dev->iobase + PARPORT_C);
+		outb(devpriv->c_data, dev->iobase + PARPORT_CTRL_REG);
 	}
 
 	data[1] = devpriv->c_data & 0xf;
@@ -215,8 +218,8 @@ static int parport_intr_cmd(struct comedi_device *dev,
 {
 	struct parport_private *devpriv = dev->private;
 
-	devpriv->c_data |= 0x10;
-	outb(devpriv->c_data, dev->iobase + PARPORT_C);
+	devpriv->c_data |= PARPORT_CTRL_IRQ_ENA;
+	outb(devpriv->c_data, dev->iobase + PARPORT_CTRL_REG);
 
 	devpriv->enable_irq = 1;
 
@@ -228,8 +231,8 @@ static int parport_intr_cancel(struct comedi_device *dev,
 {
 	struct parport_private *devpriv = dev->private;
 
-	devpriv->c_data &= ~0x10;
-	outb(devpriv->c_data, dev->iobase + PARPORT_C);
+	devpriv->c_data &= ~PARPORT_CTRL_IRQ_ENA;
+	outb(devpriv->c_data, dev->iobase + PARPORT_CTRL_REG);
 
 	devpriv->enable_irq = 0;
 
@@ -260,7 +263,7 @@ static int parport_attach(struct comedi_device *dev,
 	unsigned int irq;
 	int ret;
 
-	ret = comedi_request_region(dev, it->options[0], PARPORT_SIZE);
+	ret = comedi_request_region(dev, it->options[0], 0x03);
 	if (ret)
 		return ret;
 
@@ -325,9 +328,9 @@ static int parport_attach(struct comedi_device *dev,
 	}
 
 	devpriv->a_data = 0;
-	outb(devpriv->a_data, dev->iobase + PARPORT_A);
+	outb(devpriv->a_data, dev->iobase + PARPORT_DATA_REG);
 	devpriv->c_data = 0;
-	outb(devpriv->c_data, dev->iobase + PARPORT_C);
+	outb(devpriv->c_data, dev->iobase + PARPORT_CTRL_REG);
 
 	return 0;
 }
-- 
cgit 


From 9f1a0909deaed0a35dc459f598dafb048331f9d2 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:44:43 -0700
Subject: staging: comedi: comedi_parport: remove 'a_data' from private data

Use the subdevice s->state to hold the current state of the data register
outputs instead of carrying it in the private data.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/comedi_parport.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index 72b07717ada1..5565a99c6858 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -92,7 +92,6 @@ pin, which can be used to wake up tasks.
 #define PARPORT_CTRL_BIDIR_ENA	(1 << 5)
 
 struct parport_private {
-	unsigned int a_data;
 	unsigned int c_data;
 	int enable_irq;
 };
@@ -100,13 +99,11 @@ struct parport_private {
 static int parport_insn_a(struct comedi_device *dev, struct comedi_subdevice *s,
 			  struct comedi_insn *insn, unsigned int *data)
 {
-	struct parport_private *devpriv = dev->private;
-
 	if (data[0]) {
-		devpriv->a_data &= ~data[0];
-		devpriv->a_data |= (data[0] & data[1]);
+		s->state &= ~data[0];
+		s->state |= (data[0] & data[1]);
 
-		outb(devpriv->a_data, dev->iobase + PARPORT_DATA_REG);
+		outb(s->state, dev->iobase + PARPORT_DATA_REG);
 	}
 
 	data[1] = inb(dev->iobase + PARPORT_DATA_REG);
@@ -327,8 +324,7 @@ static int parport_attach(struct comedi_device *dev,
 		s->type = COMEDI_SUBD_UNUSED;
 	}
 
-	devpriv->a_data = 0;
-	outb(devpriv->a_data, dev->iobase + PARPORT_DATA_REG);
+	outb(0, dev->iobase + PARPORT_DATA_REG);
 	devpriv->c_data = 0;
 	outb(devpriv->c_data, dev->iobase + PARPORT_CTRL_REG);
 
-- 
cgit 


From 4c9213374c9862f9f1060ec4da944514c21bd290 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:45:02 -0700
Subject: staging: comedi: comedi_parport: tidy up parport_insn_a()

Rename this function to better describe it's use.

Use comedi_dio_update_state() to handle the boilerplate code to update
the subdevice s->state.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/comedi_parport.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index 5565a99c6858..fc73434ba9a4 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -96,15 +96,13 @@ struct parport_private {
 	int enable_irq;
 };
 
-static int parport_insn_a(struct comedi_device *dev, struct comedi_subdevice *s,
-			  struct comedi_insn *insn, unsigned int *data)
+static int parport_data_reg_insn_bits(struct comedi_device *dev,
+				      struct comedi_subdevice *s,
+				      struct comedi_insn *insn,
+				      unsigned int *data)
 {
-	if (data[0]) {
-		s->state &= ~data[0];
-		s->state |= (data[0] & data[1]);
-
+	if (comedi_dio_update_state(s, data))
 		outb(s->state, dev->iobase + PARPORT_DATA_REG);
-	}
 
 	data[1] = inb(dev->iobase + PARPORT_DATA_REG);
 
@@ -289,7 +287,7 @@ static int parport_attach(struct comedi_device *dev,
 	s->n_chan = 8;
 	s->maxdata = 1;
 	s->range_table = &range_digital;
-	s->insn_bits = parport_insn_a;
+	s->insn_bits = parport_data_reg_insn_bits;
 	s->insn_config = parport_insn_config_a;
 
 	s = &dev->subdevices[1];
-- 
cgit 


From 9f2843d17e3ca7aac99f5d77d690a80f10878a4a Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:45:25 -0700
Subject: staging: comedi: comedi_parport: fix parport_insn_config_a()

This is the (*insn_config) function for a DIO subdevice. It should be
using the data[0] value as the "instruction" to perform on the subdevice.

Use the comedi_dio_insn_config() helper to properly handle instructions.

Also, rename the function to better describe it's use.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/comedi_parport.c | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index fc73434ba9a4..0e0cc75d03e7 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -109,22 +109,25 @@ static int parport_data_reg_insn_bits(struct comedi_device *dev,
 	return insn->n;
 }
 
-static int parport_insn_config_a(struct comedi_device *dev,
-				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn, unsigned int *data)
+static int parport_data_reg_insn_config(struct comedi_device *dev,
+					struct comedi_subdevice *s,
+					struct comedi_insn *insn,
+					unsigned int *data)
 {
 	struct parport_private *devpriv = dev->private;
+	int ret;
 
-	if (data[0]) {
-		s->io_bits = 0xff;
+	ret = comedi_dio_insn_config(dev, s, insn, data, 0xff);
+	if (ret)
+		return ret;
+
+	if (s->io_bits)
 		devpriv->c_data &= ~PARPORT_CTRL_BIDIR_ENA;
-	} else {
-		s->io_bits = 0;
+	else
 		devpriv->c_data |= PARPORT_CTRL_BIDIR_ENA;
-	}
 	outb(devpriv->c_data, dev->iobase + PARPORT_CTRL_REG);
 
-	return 1;
+	return insn->n;
 }
 
 static int parport_insn_b(struct comedi_device *dev, struct comedi_subdevice *s,
@@ -288,7 +291,7 @@ static int parport_attach(struct comedi_device *dev,
 	s->maxdata = 1;
 	s->range_table = &range_digital;
 	s->insn_bits = parport_data_reg_insn_bits;
-	s->insn_config = parport_insn_config_a;
+	s->insn_config = parport_data_reg_insn_config;
 
 	s = &dev->subdevices[1];
 	s->type = COMEDI_SUBD_DI;
-- 
cgit 


From 6e2dbe3c6c7736592310b80bccf7c5c09614e72f Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:45:53 -0700
Subject: staging: comedi: comedi_parport: tidy up parport_insn_b()

Rename this function to better describe it's use.

Tidy it up to follow the normal comedi (*insn_bits) for DI subdevices.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/comedi_parport.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index 0e0cc75d03e7..8394b7ea894a 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -130,15 +130,12 @@ static int parport_data_reg_insn_config(struct comedi_device *dev,
 	return insn->n;
 }
 
-static int parport_insn_b(struct comedi_device *dev, struct comedi_subdevice *s,
-			  struct comedi_insn *insn, unsigned int *data)
+static int parport_status_reg_insn_bits(struct comedi_device *dev,
+					struct comedi_subdevice *s,
+					struct comedi_insn *insn,
+					unsigned int *data)
 {
-	if (data[0]) {
-		/* should writes be ignored? */
-		/* anyone??? */
-	}
-
-	data[1] = (inb(dev->iobase + PARPORT_STATUS_REG) >> 3);
+	data[1] = inb(dev->iobase + PARPORT_STATUS_REG) >> 3;
 
 	return insn->n;
 }
@@ -299,7 +296,7 @@ static int parport_attach(struct comedi_device *dev,
 	s->n_chan = 5;
 	s->maxdata = 1;
 	s->range_table = &range_digital;
-	s->insn_bits = parport_insn_b;
+	s->insn_bits = parport_status_reg_insn_bits;
 
 	s = &dev->subdevices[2];
 	s->type = COMEDI_SUBD_DO;
-- 
cgit 


From cdf434eef11dc3a9e820de8fd6a6a397da490cd9 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:46:11 -0700
Subject: staging: comedi: comedi_parport: tidy up parport_insn_c()

Rename this function to better describe it's use.

Use comedi_dio_update_state() to handle the boilerplate code to update
the subdevice s->state.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/comedi_parport.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index 8394b7ea894a..d720f27a7169 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -140,20 +140,20 @@ static int parport_status_reg_insn_bits(struct comedi_device *dev,
 	return insn->n;
 }
 
-static int parport_insn_c(struct comedi_device *dev, struct comedi_subdevice *s,
-			  struct comedi_insn *insn, unsigned int *data)
+static int parport_ctrl_reg_insn_bits(struct comedi_device *dev,
+				      struct comedi_subdevice *s,
+				      struct comedi_insn *insn,
+				      unsigned int *data)
 {
 	struct parport_private *devpriv = dev->private;
 
-	data[0] &= 0x0f;
-	if (data[0]) {
-		devpriv->c_data &= ~data[0];
-		devpriv->c_data |= (data[0] & data[1]);
-
+	if (comedi_dio_update_state(s, data)) {
+		devpriv->c_data &= ~((1 << s->n_chan) - 1);
+		devpriv->c_data |= s->state;
 		outb(devpriv->c_data, dev->iobase + PARPORT_CTRL_REG);
 	}
 
-	data[1] = devpriv->c_data & 0xf;
+	data[1] = s->state;
 
 	return insn->n;
 }
@@ -304,7 +304,7 @@ static int parport_attach(struct comedi_device *dev,
 	s->n_chan = 4;
 	s->maxdata = 1;
 	s->range_table = &range_digital;
-	s->insn_bits = parport_insn_c;
+	s->insn_bits = parport_ctrl_reg_insn_bits;
 
 	s = &dev->subdevices[3];
 	if (irq) {
-- 
cgit 


From 4dc3a8920cbe23a807285fa4f04fadedfc95caf7 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:46:30 -0700
Subject: staging: comedi: comedi_parport: remove 'c_data' from private data

The control register for the parallel port is readable so there is no need
to cache the current value in the private data.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/comedi_parport.c | 34 ++++++++++++++-----------
 1 file changed, 19 insertions(+), 15 deletions(-)

diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index d720f27a7169..6d8fb29848ae 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -92,7 +92,6 @@ pin, which can be used to wake up tasks.
 #define PARPORT_CTRL_BIDIR_ENA	(1 << 5)
 
 struct parport_private {
-	unsigned int c_data;
 	int enable_irq;
 };
 
@@ -114,18 +113,19 @@ static int parport_data_reg_insn_config(struct comedi_device *dev,
 					struct comedi_insn *insn,
 					unsigned int *data)
 {
-	struct parport_private *devpriv = dev->private;
+	unsigned int ctrl;
 	int ret;
 
 	ret = comedi_dio_insn_config(dev, s, insn, data, 0xff);
 	if (ret)
 		return ret;
 
+	ctrl = inb(dev->iobase + PARPORT_CTRL_REG);
 	if (s->io_bits)
-		devpriv->c_data &= ~PARPORT_CTRL_BIDIR_ENA;
+		ctrl &= ~PARPORT_CTRL_BIDIR_ENA;
 	else
-		devpriv->c_data |= PARPORT_CTRL_BIDIR_ENA;
-	outb(devpriv->c_data, dev->iobase + PARPORT_CTRL_REG);
+		ctrl |= PARPORT_CTRL_BIDIR_ENA;
+	outb(ctrl, dev->iobase + PARPORT_CTRL_REG);
 
 	return insn->n;
 }
@@ -145,12 +145,13 @@ static int parport_ctrl_reg_insn_bits(struct comedi_device *dev,
 				      struct comedi_insn *insn,
 				      unsigned int *data)
 {
-	struct parport_private *devpriv = dev->private;
+	unsigned int ctrl;
 
 	if (comedi_dio_update_state(s, data)) {
-		devpriv->c_data &= ~((1 << s->n_chan) - 1);
-		devpriv->c_data |= s->state;
-		outb(devpriv->c_data, dev->iobase + PARPORT_CTRL_REG);
+		ctrl = inb(dev->iobase + PARPORT_CTRL_REG);
+		ctrl &= (PARPORT_CTRL_IRQ_ENA | PARPORT_CTRL_BIDIR_ENA);
+		ctrl |= s->state;
+		outb(ctrl, dev->iobase + PARPORT_CTRL_REG);
 	}
 
 	data[1] = s->state;
@@ -212,9 +213,11 @@ static int parport_intr_cmd(struct comedi_device *dev,
 			    struct comedi_subdevice *s)
 {
 	struct parport_private *devpriv = dev->private;
+	unsigned int ctrl;
 
-	devpriv->c_data |= PARPORT_CTRL_IRQ_ENA;
-	outb(devpriv->c_data, dev->iobase + PARPORT_CTRL_REG);
+	ctrl = inb(dev->iobase + PARPORT_CTRL_REG);
+	ctrl |= PARPORT_CTRL_IRQ_ENA;
+	outb(ctrl, dev->iobase + PARPORT_CTRL_REG);
 
 	devpriv->enable_irq = 1;
 
@@ -225,9 +228,11 @@ static int parport_intr_cancel(struct comedi_device *dev,
 			       struct comedi_subdevice *s)
 {
 	struct parport_private *devpriv = dev->private;
+	unsigned int ctrl;
 
-	devpriv->c_data &= ~PARPORT_CTRL_IRQ_ENA;
-	outb(devpriv->c_data, dev->iobase + PARPORT_CTRL_REG);
+	ctrl = inb(dev->iobase + PARPORT_CTRL_REG);
+	ctrl &= ~PARPORT_CTRL_IRQ_ENA;
+	outb(ctrl, dev->iobase + PARPORT_CTRL_REG);
 
 	devpriv->enable_irq = 0;
 
@@ -323,8 +328,7 @@ static int parport_attach(struct comedi_device *dev,
 	}
 
 	outb(0, dev->iobase + PARPORT_DATA_REG);
-	devpriv->c_data = 0;
-	outb(devpriv->c_data, dev->iobase + PARPORT_CTRL_REG);
+	outb(0, dev->iobase + PARPORT_CTRL_REG);
 
 	return 0;
 }
-- 
cgit 


From b6ede0545894aa4d363875b9fb087d06e52b9cac Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:46:53 -0700
Subject: staging: comedi: comedi_parport: remove 'enable_irq' from private
 data

The enabled state of the interrupt can be checked by reading the control
register.

Remove 'enabled_irq' from the private data.

Since the private data is now empty, remove it completely and remove the
allocation of it in parport_attach().

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/comedi_parport.c | 20 +++-----------------
 1 file changed, 3 insertions(+), 17 deletions(-)

diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index 6d8fb29848ae..33b3b9017546 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -91,10 +91,6 @@ pin, which can be used to wake up tasks.
 #define PARPORT_CTRL_IRQ_ENA	(1 << 4)
 #define PARPORT_CTRL_BIDIR_ENA	(1 << 5)
 
-struct parport_private {
-	int enable_irq;
-};
-
 static int parport_data_reg_insn_bits(struct comedi_device *dev,
 				      struct comedi_subdevice *s,
 				      struct comedi_insn *insn,
@@ -212,40 +208,35 @@ static int parport_intr_cmdtest(struct comedi_device *dev,
 static int parport_intr_cmd(struct comedi_device *dev,
 			    struct comedi_subdevice *s)
 {
-	struct parport_private *devpriv = dev->private;
 	unsigned int ctrl;
 
 	ctrl = inb(dev->iobase + PARPORT_CTRL_REG);
 	ctrl |= PARPORT_CTRL_IRQ_ENA;
 	outb(ctrl, dev->iobase + PARPORT_CTRL_REG);
 
-	devpriv->enable_irq = 1;
-
 	return 0;
 }
 
 static int parport_intr_cancel(struct comedi_device *dev,
 			       struct comedi_subdevice *s)
 {
-	struct parport_private *devpriv = dev->private;
 	unsigned int ctrl;
 
 	ctrl = inb(dev->iobase + PARPORT_CTRL_REG);
 	ctrl &= ~PARPORT_CTRL_IRQ_ENA;
 	outb(ctrl, dev->iobase + PARPORT_CTRL_REG);
 
-	devpriv->enable_irq = 0;
-
 	return 0;
 }
 
 static irqreturn_t parport_interrupt(int irq, void *d)
 {
 	struct comedi_device *dev = d;
-	struct parport_private *devpriv = dev->private;
 	struct comedi_subdevice *s = &dev->subdevices[3];
+	unsigned int ctrl;
 
-	if (!devpriv->enable_irq)
+	ctrl = inb(dev->iobase + PARPORT_CTRL_REG);
+	if (!(ctrl & PARPORT_CTRL_IRQ_ENA))
 		return IRQ_NONE;
 
 	comedi_buf_put(s->async, 0);
@@ -258,7 +249,6 @@ static irqreturn_t parport_interrupt(int irq, void *d)
 static int parport_attach(struct comedi_device *dev,
 			  struct comedi_devconfig *it)
 {
-	struct parport_private *devpriv;
 	struct comedi_subdevice *s;
 	unsigned int irq;
 	int ret;
@@ -282,10 +272,6 @@ static int parport_attach(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
 	s = &dev->subdevices[0];
 	s->type = COMEDI_SUBD_DIO;
 	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-- 
cgit 


From 7e6f185e68d49c88ddc37973f8670e7fe88ad53b Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:47:11 -0700
Subject: staging: comedi: comedi_parport: don't fail attach if irq is not
 available

Interrupt support in this driver is optional. Don't fail the attach of the
board if the request_irq() fails.

Only allocate and setup the subdevice for the interrupt if the request_irq()
was successful.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/comedi_parport.c | 23 ++++++++---------------
 1 file changed, 8 insertions(+), 15 deletions(-)

diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index 33b3b9017546..f7680c92245d 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -250,25 +250,20 @@ static int parport_attach(struct comedi_device *dev,
 			  struct comedi_devconfig *it)
 {
 	struct comedi_subdevice *s;
-	unsigned int irq;
 	int ret;
 
 	ret = comedi_request_region(dev, it->options[0], 0x03);
 	if (ret)
 		return ret;
 
-	irq = it->options[1];
-	if (irq) {
-		ret = request_irq(irq, parport_interrupt, 0, dev->board_name,
-				  dev);
-		if (ret < 0) {
-			dev_err(dev->class_dev, "irq not available\n");
-			return -EINVAL;
-		}
-		dev->irq = irq;
+	if (it->options[1]) {
+		ret = request_irq(it->options[1], parport_interrupt, 0,
+				  dev->board_name, dev);
+		if (ret == 0)
+			dev->irq = it->options[1];
 	}
 
-	ret = comedi_alloc_subdevices(dev, 4);
+	ret = comedi_alloc_subdevices(dev, dev->irq ? 4 : 3);
 	if (ret)
 		return ret;
 
@@ -297,8 +292,8 @@ static int parport_attach(struct comedi_device *dev,
 	s->range_table = &range_digital;
 	s->insn_bits = parport_ctrl_reg_insn_bits;
 
-	s = &dev->subdevices[3];
-	if (irq) {
+	if (dev->irq) {
+		s = &dev->subdevices[3];
 		dev->read_subdev = s;
 		s->type = COMEDI_SUBD_DI;
 		s->subdev_flags = SDF_READABLE | SDF_CMD_READ;
@@ -309,8 +304,6 @@ static int parport_attach(struct comedi_device *dev,
 		s->do_cmdtest = parport_intr_cmdtest;
 		s->do_cmd = parport_intr_cmd;
 		s->cancel = parport_intr_cancel;
-	} else {
-		s->type = COMEDI_SUBD_UNUSED;
 	}
 
 	outb(0, dev->iobase + PARPORT_DATA_REG);
-- 
cgit 


From 88f0b62baf06f740ac634857c3e64321439ea9ed Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:47:31 -0700
Subject: staging: comedi: comedi_parport: tidy up parport_attach()

Add some whitespace to tidy up the subdevice init.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/comedi_parport.c | 64 +++++++++++++------------
 1 file changed, 34 insertions(+), 30 deletions(-)

diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index f7680c92245d..c36a415f6ba1 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -267,43 +267,47 @@ static int parport_attach(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
+	/* Digial I/O subdevice - Parallel port DATA register */
 	s = &dev->subdevices[0];
-	s->type = COMEDI_SUBD_DIO;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-	s->n_chan = 8;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = parport_data_reg_insn_bits;
-	s->insn_config = parport_data_reg_insn_config;
-
+	s->type		= COMEDI_SUBD_DIO;
+	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
+	s->n_chan	= 8;
+	s->maxdata	= 1;
+	s->range_table	= &range_digital;
+	s->insn_bits	= parport_data_reg_insn_bits;
+	s->insn_config	= parport_data_reg_insn_config;
+
+	/* Digial Input subdevice - Parallel port STATUS register */
 	s = &dev->subdevices[1];
-	s->type = COMEDI_SUBD_DI;
-	s->subdev_flags = SDF_READABLE;
-	s->n_chan = 5;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = parport_status_reg_insn_bits;
-
+	s->type		= COMEDI_SUBD_DI;
+	s->subdev_flags	= SDF_READABLE;
+	s->n_chan	= 5;
+	s->maxdata	= 1;
+	s->range_table	= &range_digital;
+	s->insn_bits	= parport_status_reg_insn_bits;
+
+	/* Digial Output subdevice - Parallel port CONTROL register */
 	s = &dev->subdevices[2];
-	s->type = COMEDI_SUBD_DO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 4;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = parport_ctrl_reg_insn_bits;
+	s->type		= COMEDI_SUBD_DO;
+	s->subdev_flags	= SDF_WRITABLE;
+	s->n_chan	= 4;
+	s->maxdata	= 1;
+	s->range_table	= &range_digital;
+	s->insn_bits	= parport_ctrl_reg_insn_bits;
 
 	if (dev->irq) {
+		/* Digial Input subdevice - Interrupt support */
 		s = &dev->subdevices[3];
 		dev->read_subdev = s;
-		s->type = COMEDI_SUBD_DI;
-		s->subdev_flags = SDF_READABLE | SDF_CMD_READ;
-		s->n_chan = 1;
-		s->maxdata = 1;
-		s->range_table = &range_digital;
-		s->insn_bits = parport_intr_insn;
-		s->do_cmdtest = parport_intr_cmdtest;
-		s->do_cmd = parport_intr_cmd;
-		s->cancel = parport_intr_cancel;
+		s->type		= COMEDI_SUBD_DI;
+		s->subdev_flags	= SDF_READABLE | SDF_CMD_READ;
+		s->n_chan	= 1;
+		s->maxdata	= 1;
+		s->range_table	= &range_digital;
+		s->insn_bits	= parport_intr_insn;
+		s->do_cmdtest	= parport_intr_cmdtest;
+		s->do_cmd	= parport_intr_cmd;
+		s->cancel	= parport_intr_cancel;
 	}
 
 	outb(0, dev->iobase + PARPORT_DATA_REG);
-- 
cgit 


From 7821e8e49645602366df1a770ecd76b763698073 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:47:51 -0700
Subject: staging: comedi: comedi_parport: tidy up multi-line comments

Tidy up the multi-line comments to follow the CodingStyle.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/comedi_parport.c | 136 +++++++++++-------------
 1 file changed, 62 insertions(+), 74 deletions(-)

diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index c36a415f6ba1..014485f67b87 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -1,79 +1,67 @@
 /*
-    comedi/drivers/comedi_parport.c
-    hardware driver for standard parallel port
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1998,2001 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: comedi_parport
-Description: Standard PC parallel port
-Author: ds
-Status: works in immediate mode
-Devices: [standard] parallel port (comedi_parport)
-Updated: Tue, 30 Apr 2002 21:11:45 -0700
-
-A cheap and easy way to get a few more digital I/O lines.  Steal
-additional parallel ports from old computers or your neighbors'
-computers.
-
-Option list:
- 0: I/O port base for the parallel port.
- 1: IRQ
-
-Parallel Port Lines:
-
-pin     subdev  chan    aka
----     ------  ----    ---
-1       2       0       strobe
-2       0       0       data 0
-3       0       1       data 1
-4       0       2       data 2
-5       0       3       data 3
-6       0       4       data 4
-7       0       5       data 5
-8       0       6       data 6
-9       0       7       data 7
-10      1       3       acknowledge
-11      1       4       busy
-12      1       2       output
-13      1       1       printer selected
-14      2       1       auto LF
-15      1       0       error
-16      2       2       init
-17      2       3       select printer
-18-25   ground
-
-Notes:
-
-Subdevices 0 is digital I/O, subdevice 1 is digital input, and
-subdevice 2 is digital output.  Unlike other Comedi devices,
-subdevice 0 defaults to output.
-
-Pins 13 and 14 are inverted once by Comedi and once by the
-hardware, thus cancelling the effect.
-
-Pin 1 is a strobe, thus acts like one.  There's no way in software
-to change this, at least on a standard parallel port.
-
-Subdevice 3 pretends to be a digital input subdevice, but it always
-returns 0 when read.  However, if you run a command with
-scan_begin_src=TRIG_EXT, it uses pin 10 as a external triggering
-pin, which can be used to wake up tasks.
-*/
+ * comedi_parport.c
+ * Comedi driver for standard parallel port
+ *
+ * For more information see:
+ *	http://retired.beyondlogic.org/spp/parallel.htm
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 1998,2001 David A. Schleef <ds@schleef.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
 /*
-   see http://www.beyondlogic.org/ for information.
-   or http://www.linux-magazin.de/ausgabe/1999/10/IO/io.html
+ * Driver: comedi_parport
+ * Description: Standard PC parallel port
+ * Author: ds
+ * Status: works in immediate mode
+ * Devices: (standard) parallel port [comedi_parport]
+ * Updated: Tue, 30 Apr 2002 21:11:45 -0700
+ *
+ * A cheap and easy way to get a few more digital I/O lines. Steal
+ * additional parallel ports from old computers or your neighbors'
+ * computers.
+ *
+ * Option list:
+ *   0: I/O port base for the parallel port.
+ *   1: IRQ (optional)
+ *
+ * Parallel Port Lines:
+ *
+ *	 pin   subdev  chan  type  name
+ *	-----  ------  ----  ----  --------------
+ *	  1      2       0    DO   strobe
+ *	  2      0       0    DIO  data 0
+ *	  3      0       1    DIO  data 1
+ *	  4      0       2    DIO  data 2
+ *	  5      0       3    DIO  data 3
+ *	  6      0       4    DIO  data 4
+ *	  7      0       5    DIO  data 5
+ *	  8      0       6    DIO  data 6
+ *	  9      0       7    DIO  data 7
+ *	 10      1       3    DI   ack
+ *	 11      1       4    DI   busy
+ *	 12      1       2    DI   paper out
+ *	 13      1       1    DI   select in
+ *	 14      2       1    DO   auto LF
+ *	 15      1       0    DI   error
+ *	 16      2       2    DO   init
+ *	 17      2       3    DO   select printer
+ *	18-25                      ground
+ *
+ * When an IRQ is configured subdevice 3 pretends to be a digital
+ * input subdevice, but it always returns 0 when read. However, if
+ * you run a command with scan_begin_src=TRIG_EXT, it uses pin 10
+ * as a external trigger, which can be used to wake up tasks.
  */
 
 #include <linux/module.h>
-- 
cgit 


From 2f0ab4601a7ee2d14833d44681a5ff5d4e45e163 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:48:10 -0700
Subject: staging: comedi: comedi_parport: reorder #include's

For aesthetic reasons, reorder the #include list.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/comedi_parport.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index 014485f67b87..4339440eb65c 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -65,9 +65,10 @@
  */
 
 #include <linux/module.h>
-#include "../comedidev.h"
 #include <linux/interrupt.h>
 
+#include "../comedidev.h"
+
 #include "comedi_fc.h"
 
 /*
-- 
cgit 


From efc6da4daf054b982c0a28e9fc3a1eaf6754bece Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:48:27 -0700
Subject: staging: comedi: comedi_parport: rename parport_intr_insn()

For aesthetic reasons, rename this function.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/comedi_parport.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index 4339440eb65c..724d9a7cd1cd 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -144,9 +144,10 @@ static int parport_ctrl_reg_insn_bits(struct comedi_device *dev,
 	return insn->n;
 }
 
-static int parport_intr_insn(struct comedi_device *dev,
-			     struct comedi_subdevice *s,
-			     struct comedi_insn *insn, unsigned int *data)
+static int parport_intr_insn_bits(struct comedi_device *dev,
+				  struct comedi_subdevice *s,
+				  struct comedi_insn *insn,
+				  unsigned int *data)
 {
 	data[1] = 0;
 	return insn->n;
@@ -293,7 +294,7 @@ static int parport_attach(struct comedi_device *dev,
 		s->n_chan	= 1;
 		s->maxdata	= 1;
 		s->range_table	= &range_digital;
-		s->insn_bits	= parport_intr_insn;
+		s->insn_bits	= parport_intr_insn_bits;
 		s->do_cmdtest	= parport_intr_cmdtest;
 		s->do_cmd	= parport_intr_cmd;
 		s->cancel	= parport_intr_cancel;
-- 
cgit 


From b3860bff98c4ca988b31636bee4dc906f837001d Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:48:44 -0700
Subject: staging: comedi: comedi_parport: use dev->read_subdev in interrupt
 handler

Use the dev->read_subdev to get the comedi_subdevice instead of accessing
the dev->subdevices array directly.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/comedi_parport.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index 724d9a7cd1cd..d164243a09f7 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -222,7 +222,7 @@ static int parport_intr_cancel(struct comedi_device *dev,
 static irqreturn_t parport_interrupt(int irq, void *d)
 {
 	struct comedi_device *dev = d;
-	struct comedi_subdevice *s = &dev->subdevices[3];
+	struct comedi_subdevice *s = dev->read_subdev;
 	unsigned int ctrl;
 
 	ctrl = inb(dev->iobase + PARPORT_CTRL_REG);
-- 
cgit 


From 7c9cf743f4da65165d110b7bb1803d72115904d7 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 30 Aug 2013 11:49:02 -0700
Subject: staging: comedi: comedi_parport: change MODULE_DESCRIPTION

Change the MODULE_DESCRIPTION to something useful instead of the
generic "Comedi low-level driver".

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/comedi_parport.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/comedi_parport.c b/drivers/staging/comedi/drivers/comedi_parport.c
index d164243a09f7..9de81c7712fb 100644
--- a/drivers/staging/comedi/drivers/comedi_parport.c
+++ b/drivers/staging/comedi/drivers/comedi_parport.c
@@ -315,5 +315,5 @@ static struct comedi_driver parport_driver = {
 module_comedi_driver(parport_driver);
 
 MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
+MODULE_DESCRIPTION("Comedi: Standard parallel port driver");
 MODULE_LICENSE("GPL");
-- 
cgit 


From 63c7cc2aea9fafc12f6e2fb07e0310c75e899f98 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sat, 31 Aug 2013 10:58:22 +0530
Subject: staging: dgap: Remove version check in dgap_driver.c

Code should be for the kernel version it is merged in.
Version check is not necessary.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgap/dgap_driver.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/staging/dgap/dgap_driver.c b/drivers/staging/dgap/dgap_driver.c
index 724a685753dd..65d7ee042f90 100644
--- a/drivers/staging/dgap/dgap_driver.c
+++ b/drivers/staging/dgap/dgap_driver.c
@@ -32,16 +32,12 @@
 
 
 #include <linux/kernel.h>
-#include <linux/version.h>
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/delay.h>	/* For udelay */
 #include <linux/slab.h>
 #include <asm/uaccess.h>	/* For copy_from_user/copy_to_user */
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)
 #include <linux/sched.h>
-#endif
 
 #include "dgap_driver.h"
 #include "dgap_pci.h"
-- 
cgit 


From 3b33bd911dfcbe923b7aeac04e7b5691247dad35 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sat, 31 Aug 2013 10:58:23 +0530
Subject: staging: dgap: Remove version check in dgap_kcompat.h

Code should be for the kernel version it is merged in.
Version check is not necessary.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgap/dgap_kcompat.h | 29 -----------------------------
 1 file changed, 29 deletions(-)

diff --git a/drivers/staging/dgap/dgap_kcompat.h b/drivers/staging/dgap/dgap_kcompat.h
index 8ebf4b7373b7..0dc2404922ff 100644
--- a/drivers/staging/dgap/dgap_kcompat.h
+++ b/drivers/staging/dgap/dgap_kcompat.h
@@ -28,11 +28,6 @@
 #ifndef __DGAP_KCOMPAT_H
 #define __DGAP_KCOMPAT_H
 
-# ifndef KERNEL_VERSION
-#  define KERNEL_VERSION(a,b,c)  (((a) << 16) + ((b) << 8) + (c))
-# endif
-
-
 #if !defined(TTY_FLIPBUF_SIZE)
 # define TTY_FLIPBUF_SIZE 512
 #endif
@@ -66,28 +61,4 @@
 		module_param(VAR, long, PERM); \
 		MODULE_PARM_DESC(VAR, DESC);
 
-
-
-
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
-
-
-
-
-/* NOTHING YET */
-
-
-
-
-# else
-
-
-
-# error "this driver does not support anything below the 2.6.27 kernel series."
-
-
-
-# endif
-
 #endif /* ! __DGAP_KCOMPAT_H */
-- 
cgit 


From 538118b94febf5582b7313dc52e13c55cc1bd5a5 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 14:19:48 +0900
Subject: staging: dgap: Remove casting the return value which is a void
 pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgap/dgap_parse.c |  6 ++++--
 drivers/staging/dgap/dgap_sysfs.c | 22 +++++++++++-----------
 2 files changed, 15 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/dgap/dgap_parse.c b/drivers/staging/dgap/dgap_parse.c
index 5497e6de0608..3bb79c5d7fe5 100644
--- a/drivers/staging/dgap/dgap_parse.c
+++ b/drivers/staging/dgap/dgap_parse.c
@@ -1013,8 +1013,10 @@ static void dgap_err(char *s)
 static struct cnode *dgap_newnode(int t)
 {
 	struct cnode *n;
-	if ( (n = (struct cnode *) kmalloc(sizeof(struct cnode ), GFP_ATOMIC) ) != NULL) {
-		memset( (char *)n, 0, sizeof(struct cnode ) );
+
+	n = kmalloc(sizeof(struct cnode), GFP_ATOMIC);
+	if (n != NULL) {
+		memset((char *)n, 0, sizeof(struct cnode));
 		n->type = t;
 	}
 	return(n);
diff --git a/drivers/staging/dgap/dgap_sysfs.c b/drivers/staging/dgap/dgap_sysfs.c
index 94da06fcf7e9..7f4ec9a18293 100644
--- a/drivers/staging/dgap/dgap_sysfs.c
+++ b/drivers/staging/dgap/dgap_sysfs.c
@@ -395,7 +395,7 @@ static ssize_t dgap_tty_state_show(struct device *d, struct device_attribute *at
 
 	if (!d)
 		return (0);
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGAP_UNIT_MAGIC)
 		return (0);
 	ch = un->un_ch;
@@ -420,7 +420,7 @@ static ssize_t dgap_tty_baud_show(struct device *d, struct device_attribute *att
 
 	if (!d)
 		return (0);
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGAP_UNIT_MAGIC)
 		return (0);
 	ch = un->un_ch;
@@ -445,7 +445,7 @@ static ssize_t dgap_tty_msignals_show(struct device *d, struct device_attribute
 
 	if (!d)
 		return (0);
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGAP_UNIT_MAGIC)
 		return (0);
 	ch = un->un_ch;
@@ -479,7 +479,7 @@ static ssize_t dgap_tty_iflag_show(struct device *d, struct device_attribute *at
 
 	if (!d)
 		return (0);
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGAP_UNIT_MAGIC)
 		return (0);
 	ch = un->un_ch;
@@ -504,7 +504,7 @@ static ssize_t dgap_tty_cflag_show(struct device *d, struct device_attribute *at
 
 	if (!d)
 		return (0);
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGAP_UNIT_MAGIC)
 		return (0);
 	ch = un->un_ch;
@@ -529,7 +529,7 @@ static ssize_t dgap_tty_oflag_show(struct device *d, struct device_attribute *at
 
 	if (!d)
 		return (0);
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGAP_UNIT_MAGIC)
 		return (0);
 	ch = un->un_ch;
@@ -554,7 +554,7 @@ static ssize_t dgap_tty_lflag_show(struct device *d, struct device_attribute *at
 
 	if (!d)
 		return (0);
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGAP_UNIT_MAGIC)
 		return (0);
 	ch = un->un_ch;
@@ -579,7 +579,7 @@ static ssize_t dgap_tty_digi_flag_show(struct device *d, struct device_attribute
 
 	if (!d)
 		return (0);
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGAP_UNIT_MAGIC)
 		return (0);
 	ch = un->un_ch;
@@ -604,7 +604,7 @@ static ssize_t dgap_tty_rxcount_show(struct device *d, struct device_attribute *
 
 	if (!d)
 		return (0);
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGAP_UNIT_MAGIC)
 		return (0);
 	ch = un->un_ch;
@@ -629,7 +629,7 @@ static ssize_t dgap_tty_txcount_show(struct device *d, struct device_attribute *
 
 	if (!d)
 		return (0);
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGAP_UNIT_MAGIC)
 		return (0);
 	ch = un->un_ch;
@@ -661,7 +661,7 @@ static ssize_t dgap_tty_name_show(struct device *d, struct device_attribute *att
 
 	if (!d)
 		return (0);
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGAP_UNIT_MAGIC)
 		return (0);
 	ch = un->un_ch;
-- 
cgit 


From 03425f55a1604e969112257982fb910c1ce80f4f Mon Sep 17 00:00:00 2001
From: Lidza Louina <lidza.louina@gmail.com>
Date: Mon, 9 Sep 2013 15:01:22 -0400
Subject: staging: dgnc: renames board_t to dgnc_board

This patch renames the struct board_t to dgnc_board. board_t
wasn't a good name for it since the _t suffix is for typedefs.

Signed-off-by: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgnc/dgnc_cls.c    | 14 +++++------
 drivers/staging/dgnc/dgnc_driver.c | 20 +++++++--------
 drivers/staging/dgnc/dgnc_driver.h | 10 ++++----
 drivers/staging/dgnc/dgnc_neo.c    | 20 +++++++--------
 drivers/staging/dgnc/dgnc_sysfs.c  | 50 +++++++++++++++++++-------------------
 drivers/staging/dgnc/dgnc_sysfs.h  |  6 ++---
 drivers/staging/dgnc/dgnc_tty.c    | 38 ++++++++++++++---------------
 drivers/staging/dgnc/dgnc_tty.h    |  6 ++---
 8 files changed, 82 insertions(+), 82 deletions(-)

diff --git a/drivers/staging/dgnc/dgnc_cls.c b/drivers/staging/dgnc/dgnc_cls.c
index 117e15808240..22875c1834e2 100644
--- a/drivers/staging/dgnc/dgnc_cls.c
+++ b/drivers/staging/dgnc/dgnc_cls.c
@@ -43,7 +43,7 @@
 #include "dgnc_tty.h"
 #include "dgnc_trace.h"
 
-static inline void cls_parse_isr(struct board_t *brd, uint port);
+static inline void cls_parse_isr(struct dgnc_board *brd, uint port);
 static inline void cls_clear_break(struct channel_t *ch, int force);
 static inline void cls_set_cts_flow_control(struct channel_t *ch);
 static inline void cls_set_rts_flow_control(struct channel_t *ch);
@@ -53,7 +53,7 @@ static inline void cls_set_no_output_flow_control(struct channel_t *ch);
 static inline void cls_set_no_input_flow_control(struct channel_t *ch);
 static void cls_parse_modem(struct channel_t *ch, uchar signals);
 static void cls_tasklet(unsigned long data);
-static void cls_vpd(struct board_t *brd);
+static void cls_vpd(struct dgnc_board *brd);
 static void cls_uart_init(struct channel_t *ch);
 static void cls_uart_off(struct channel_t *ch);
 static int cls_drain(struct tty_struct *tty, uint seconds);
@@ -393,7 +393,7 @@ static inline void cls_clear_break(struct channel_t *ch, int force)
 
 
 /* Parse the ISR register for the specific port */
-static inline void cls_parse_isr(struct board_t *brd, uint port)
+static inline void cls_parse_isr(struct dgnc_board *brd, uint port)
 {
 	struct channel_t *ch;
 	uchar isr = 0;
@@ -477,7 +477,7 @@ static void cls_param(struct tty_struct *tty)
 	uchar uart_ier = 0;
         uint baud = 9600;
 	int quot = 0;
-        struct board_t *bd;
+        struct dgnc_board *bd;
 	struct channel_t *ch;
         struct un_t   *un;
 
@@ -725,7 +725,7 @@ static void cls_param(struct tty_struct *tty)
  */
 static void cls_tasklet(unsigned long data)
 {
-        struct board_t *bd = (struct board_t *) data;
+        struct dgnc_board *bd = (struct dgnc_board *) data;
 	struct channel_t *ch;
 	ulong  lock_flags;
 	int i;
@@ -802,7 +802,7 @@ static void cls_tasklet(unsigned long data)
  */
 static irqreturn_t cls_intr(int irq, void *voidbrd)
 {
-	struct board_t *brd = (struct board_t *) voidbrd;
+	struct dgnc_board *brd = (struct dgnc_board *) voidbrd;
 	uint i = 0;
 	uchar poll_reg;
 	unsigned long lock_flags;
@@ -1378,7 +1378,7 @@ static void cls_send_immediate_char(struct channel_t *ch, unsigned char c)
 	writeb(c, &ch->ch_cls_uart->txrx);
 }
 
-static void cls_vpd(struct board_t *brd)
+static void cls_vpd(struct dgnc_board *brd)
 {
         ulong           vpdbase;        /* Start of io base of the card */
         u8 __iomem           *re_map_vpdbase;/* Remapped memory of the card */
diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c
index f8c1e22585d6..5b352917a9f2 100644
--- a/drivers/staging/dgnc/dgnc_driver.c
+++ b/drivers/staging/dgnc/dgnc_driver.c
@@ -71,16 +71,16 @@ PARM_INT(trcbuf_size,	0x100000,	0644, 	"Debugging trace buffer size.");
  *
  */
 static int		dgnc_start(void);
-static int		dgnc_finalize_board_init(struct board_t *brd);
+static int		dgnc_finalize_board_init(struct dgnc_board *brd);
 static void		dgnc_init_globals(void);
 static int		dgnc_found_board(struct pci_dev *pdev, int id);
-static void		dgnc_cleanup_board(struct board_t *brd);
+static void		dgnc_cleanup_board(struct dgnc_board *brd);
 static void		dgnc_poll_handler(ulong dummy);
 static int		dgnc_init_pci(void);
 static int		dgnc_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
 static void		dgnc_remove_one(struct pci_dev *dev);
 static int		dgnc_probe1(struct pci_dev *pdev, int card_type);
-static void		dgnc_do_remap(struct board_t *brd);
+static void		dgnc_do_remap(struct dgnc_board *brd);
 
 /* Driver load/unload functions */
 int		dgnc_init_module(void);
@@ -106,7 +106,7 @@ static struct file_operations dgnc_BoardFops =
  * Globals
  */
 uint			dgnc_NumBoards;
-struct board_t		*dgnc_Board[MAXBOARDS];
+struct dgnc_board		*dgnc_Board[MAXBOARDS];
 DEFINE_SPINLOCK(dgnc_global_lock);
 int			dgnc_driver_state = DRIVER_INITIALIZED;
 ulong			dgnc_poll_counter;
@@ -418,7 +418,7 @@ void dgnc_cleanup_module(void)
  *
  * Free all the memory associated with a board
  */
-static void dgnc_cleanup_board(struct board_t *brd)
+static void dgnc_cleanup_board(struct dgnc_board *brd)
 {
 	int i = 0;
 
@@ -491,7 +491,7 @@ static void dgnc_cleanup_board(struct board_t *brd)
  */
 static int dgnc_found_board(struct pci_dev *pdev, int id)
 {
-	struct board_t *brd;
+	struct dgnc_board *brd;
 	unsigned int pci_irq;
 	int i = 0;
 	int rc = 0;
@@ -499,7 +499,7 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
 
 	/* get the board structure and prep it */
 	brd = dgnc_Board[dgnc_NumBoards] =
-	(struct board_t *) kzalloc(sizeof(struct board_t), GFP_KERNEL);
+	(struct dgnc_board *) kzalloc(sizeof(struct dgnc_board), GFP_KERNEL);
 	if (!brd) {
 		APR(("memory allocation for board structure failed\n"));
 		return(-ENOMEM);
@@ -734,7 +734,7 @@ failed:
 }
 
 
-static int dgnc_finalize_board_init(struct board_t *brd) {
+static int dgnc_finalize_board_init(struct dgnc_board *brd) {
 	int rc = 0;
 
 	DPR_INIT(("dgnc_finalize_board_init() - start\n"));
@@ -762,7 +762,7 @@ static int dgnc_finalize_board_init(struct board_t *brd) {
 /*
  * Remap PCI memory.
  */
-static void dgnc_do_remap(struct board_t *brd)
+static void dgnc_do_remap(struct dgnc_board *brd)
 {
 
 	if (!brd || brd->magic != DGNC_BOARD_MAGIC)
@@ -802,7 +802,7 @@ static void dgnc_do_remap(struct board_t *brd)
 
 static void dgnc_poll_handler(ulong dummy)
 {
-	struct board_t *brd;
+	struct dgnc_board *brd;
 	unsigned long lock_flags;
 	int i;
 	unsigned long new_time;
diff --git a/drivers/staging/dgnc/dgnc_driver.h b/drivers/staging/dgnc/dgnc_driver.h
index 218b15dccb7d..d4a830b8ed96 100644
--- a/drivers/staging/dgnc/dgnc_driver.h
+++ b/drivers/staging/dgnc/dgnc_driver.h
@@ -246,7 +246,7 @@ enum {
  *
  *************************************************************************/
 
-struct board_t;
+struct dgnc_board;
 struct channel_t;
 
 /************************************************************************
@@ -259,7 +259,7 @@ struct board_ops {
 	void (*uart_off) (struct channel_t *ch);
 	int  (*drain) (struct tty_struct *tty, uint seconds);
 	void (*param) (struct tty_struct *tty);
-	void (*vpd) (struct board_t *brd);
+	void (*vpd) (struct dgnc_board *brd);
 	void (*assert_modem_signals) (struct channel_t *ch);
 	void (*flush_uart_write) (struct channel_t *ch);
 	void (*flush_uart_read) (struct channel_t *ch);
@@ -282,7 +282,7 @@ struct board_ops {
 /*
  *	Per-board information
  */
-struct board_t {
+struct dgnc_board {
 	int		magic;		/* Board Magic number.  */
 	int		boardnum;	/* Board number: 0-32 */
 
@@ -449,7 +449,7 @@ struct un_t {
  ************************************************************************/
 struct channel_t {
 	int magic;			/* Channel Magic Number		*/
-	struct board_t	*ch_bd;		/* Board structure pointer      */
+	struct dgnc_board	*ch_bd;		/* Board structure pointer      */
 	struct digi_t	ch_digi;	/* Transparent Print structure  */
 	struct un_t	ch_tun;		/* Terminal unit info	   */
 	struct un_t	ch_pun;		/* Printer unit info	    */
@@ -555,7 +555,7 @@ extern int		dgnc_poll_tick;		/* Poll interval - 20 ms	*/
 extern int		dgnc_trcbuf_size;	/* Size of the ringbuffer	*/
 extern spinlock_t	dgnc_global_lock;	/* Driver global spinlock	*/
 extern uint		dgnc_NumBoards;		/* Total number of boards	*/
-extern struct board_t	*dgnc_Board[MAXBOARDS];	/* Array of board structs	*/
+extern struct dgnc_board	*dgnc_Board[MAXBOARDS];	/* Array of board structs	*/
 extern ulong		dgnc_poll_counter;	/* Times the poller has run	*/
 extern char		*dgnc_state_text[];	/* Array of state text		*/
 extern char		*dgnc_driver_state_text[];/* Array of driver state text */
diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c
index 8b9e09a83f75..61650515b5d4 100644
--- a/drivers/staging/dgnc/dgnc_neo.c
+++ b/drivers/staging/dgnc/dgnc_neo.c
@@ -43,8 +43,8 @@
 #include "dgnc_tty.h"
 #include "dgnc_trace.h"
 
-static inline void neo_parse_lsr(struct board_t *brd, uint port);
-static inline void neo_parse_isr(struct board_t *brd, uint port);
+static inline void neo_parse_lsr(struct dgnc_board *brd, uint port);
+static inline void neo_parse_isr(struct dgnc_board *brd, uint port);
 static void neo_copy_data_from_uart_to_queue(struct channel_t *ch);
 static inline void neo_clear_break(struct channel_t *ch, int force);
 static inline void neo_set_cts_flow_control(struct channel_t *ch);
@@ -56,7 +56,7 @@ static inline void neo_set_no_input_flow_control(struct channel_t *ch);
 static inline void neo_set_new_start_stop_chars(struct channel_t *ch);
 static void neo_parse_modem(struct channel_t *ch, uchar signals);
 static void neo_tasklet(unsigned long data);
-static void neo_vpd(struct board_t *brd);
+static void neo_vpd(struct dgnc_board *brd);
 static void neo_uart_init(struct channel_t *ch);
 static void neo_uart_off(struct channel_t *ch);
 static int neo_drain(struct tty_struct *tty, uint seconds);
@@ -107,7 +107,7 @@ static uint dgnc_offset_table[8] = { 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0
  * In this case, we are reading the DVID (Read-only Device Identification)
  * value of the Neo card.
  */
-static inline void neo_pci_posting_flush(struct board_t *bd)
+static inline void neo_pci_posting_flush(struct dgnc_board *bd)
 {
 	readb(bd->re_map_membase + 0x8D);
 }
@@ -411,7 +411,7 @@ static inline void neo_clear_break(struct channel_t *ch, int force)
 /*
  * Parse the ISR register.
  */
-static inline void neo_parse_isr(struct board_t *brd, uint port)
+static inline void neo_parse_isr(struct dgnc_board *brd, uint port)
 {
 	struct channel_t *ch;
 	uchar isr;
@@ -538,7 +538,7 @@ static inline void neo_parse_isr(struct board_t *brd, uint port)
 }
 
 
-static inline void neo_parse_lsr(struct board_t *brd, uint port)
+static inline void neo_parse_lsr(struct dgnc_board *brd, uint port)
 {
 	struct channel_t *ch;
 	int linestatus;
@@ -650,7 +650,7 @@ static void neo_param(struct tty_struct *tty)
 	uchar uart_ier = 0;
 	uint baud = 9600;
 	int quot = 0;
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t   *un;
 
@@ -911,7 +911,7 @@ static void neo_param(struct tty_struct *tty)
  */
 static void neo_tasklet(unsigned long data)
 {
-	struct board_t *bd = (struct board_t *) data;
+	struct dgnc_board *bd = (struct dgnc_board *) data;
 	struct channel_t *ch;
 	ulong  lock_flags;
 	int i;
@@ -994,7 +994,7 @@ static void neo_tasklet(unsigned long data)
  */
 static irqreturn_t neo_intr(int irq, void *voidbrd)
 {
-	struct board_t *brd = (struct board_t *) voidbrd;
+	struct dgnc_board *brd = (struct dgnc_board *) voidbrd;
 	struct channel_t *ch;
 	int port = 0;
 	int type = 0;
@@ -1939,7 +1939,7 @@ static unsigned int neo_read_eeprom(unsigned char __iomem *base, unsigned int ad
 }
 
 
-static void neo_vpd(struct board_t *brd)
+static void neo_vpd(struct dgnc_board *brd)
 {
 	unsigned int i = 0;
 	unsigned int a;
diff --git a/drivers/staging/dgnc/dgnc_sysfs.c b/drivers/staging/dgnc/dgnc_sysfs.c
index 0ea6c8002805..03d3e2f91ee8 100644
--- a/drivers/staging/dgnc/dgnc_sysfs.c
+++ b/drivers/staging/dgnc/dgnc_sysfs.c
@@ -164,7 +164,7 @@ void dgnc_remove_driver_sysfiles(struct pci_driver *dgnc_driver)
 
 static ssize_t dgnc_vpd_show(struct device *p, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	int count = 0;
 	int i = 0;
 
@@ -184,7 +184,7 @@ static DEVICE_ATTR(vpd, S_IRUSR, dgnc_vpd_show, NULL);
 
 static ssize_t dgnc_serial_number_show(struct device *p, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	int count = 0;
 
 	DGNC_VERIFY_BOARD(p, bd);
@@ -201,7 +201,7 @@ static DEVICE_ATTR(serial_number, S_IRUSR, dgnc_serial_number_show, NULL);
 
 static ssize_t dgnc_ports_state_show(struct device *p, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	int count = 0;
 	int i = 0;
 
@@ -219,7 +219,7 @@ static DEVICE_ATTR(ports_state, S_IRUSR, dgnc_ports_state_show, NULL);
 
 static ssize_t dgnc_ports_baud_show(struct device *p, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	int count = 0;
 	int i = 0;
 
@@ -236,7 +236,7 @@ static DEVICE_ATTR(ports_baud, S_IRUSR, dgnc_ports_baud_show, NULL);
 
 static ssize_t dgnc_ports_msignals_show(struct device *p, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	int count = 0;
 	int i = 0;
 
@@ -264,7 +264,7 @@ static DEVICE_ATTR(ports_msignals, S_IRUSR, dgnc_ports_msignals_show, NULL);
 
 static ssize_t dgnc_ports_iflag_show(struct device *p, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	int count = 0;
 	int i = 0;
 
@@ -281,7 +281,7 @@ static DEVICE_ATTR(ports_iflag, S_IRUSR, dgnc_ports_iflag_show, NULL);
 
 static ssize_t dgnc_ports_cflag_show(struct device *p, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	int count = 0;
 	int i = 0;
 
@@ -298,7 +298,7 @@ static DEVICE_ATTR(ports_cflag, S_IRUSR, dgnc_ports_cflag_show, NULL);
 
 static ssize_t dgnc_ports_oflag_show(struct device *p, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	int count = 0;
 	int i = 0;
 
@@ -315,7 +315,7 @@ static DEVICE_ATTR(ports_oflag, S_IRUSR, dgnc_ports_oflag_show, NULL);
 
 static ssize_t dgnc_ports_lflag_show(struct device *p, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	int count = 0;
 	int i = 0;
 
@@ -332,7 +332,7 @@ static DEVICE_ATTR(ports_lflag, S_IRUSR, dgnc_ports_lflag_show, NULL);
 
 static ssize_t dgnc_ports_digi_flag_show(struct device *p, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	int count = 0;
 	int i = 0;
 
@@ -349,7 +349,7 @@ static DEVICE_ATTR(ports_digi_flag, S_IRUSR, dgnc_ports_digi_flag_show, NULL);
 
 static ssize_t dgnc_ports_rxcount_show(struct device *p, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	int count = 0;
 	int i = 0;
 
@@ -366,7 +366,7 @@ static DEVICE_ATTR(ports_rxcount, S_IRUSR, dgnc_ports_rxcount_show, NULL);
 
 static ssize_t dgnc_ports_txcount_show(struct device *p, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	int count = 0;
 	int i = 0;
 
@@ -384,7 +384,7 @@ static DEVICE_ATTR(ports_txcount, S_IRUSR, dgnc_ports_txcount_show, NULL);
 /* this function creates the sys files that will export each signal status
  * to sysfs each value will be put in a separate filename
  */
-void dgnc_create_ports_sysfiles(struct board_t *bd)
+void dgnc_create_ports_sysfiles(struct dgnc_board *bd)
 {
 	int rc = 0;
 
@@ -408,7 +408,7 @@ void dgnc_create_ports_sysfiles(struct board_t *bd)
 
 
 /* removes all the sys files created for that port */
-void dgnc_remove_ports_sysfiles(struct board_t *bd)
+void dgnc_remove_ports_sysfiles(struct dgnc_board *bd)
 {
 	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_state);
 	device_remove_file(&(bd->pdev->dev), &dev_attr_ports_baud);
@@ -427,7 +427,7 @@ void dgnc_remove_ports_sysfiles(struct board_t *bd)
 
 static ssize_t dgnc_tty_state_show(struct device *d, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 
@@ -452,7 +452,7 @@ static DEVICE_ATTR(state, S_IRUSR, dgnc_tty_state_show, NULL);
 
 static ssize_t dgnc_tty_baud_show(struct device *d, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 
@@ -477,7 +477,7 @@ static DEVICE_ATTR(baud, S_IRUSR, dgnc_tty_baud_show, NULL);
 
 static ssize_t dgnc_tty_msignals_show(struct device *d, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 
@@ -511,7 +511,7 @@ static DEVICE_ATTR(msignals, S_IRUSR, dgnc_tty_msignals_show, NULL);
 
 static ssize_t dgnc_tty_iflag_show(struct device *d, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 
@@ -536,7 +536,7 @@ static DEVICE_ATTR(iflag, S_IRUSR, dgnc_tty_iflag_show, NULL);
 
 static ssize_t dgnc_tty_cflag_show(struct device *d, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 
@@ -561,7 +561,7 @@ static DEVICE_ATTR(cflag, S_IRUSR, dgnc_tty_cflag_show, NULL);
 
 static ssize_t dgnc_tty_oflag_show(struct device *d, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 
@@ -586,7 +586,7 @@ static DEVICE_ATTR(oflag, S_IRUSR, dgnc_tty_oflag_show, NULL);
 
 static ssize_t dgnc_tty_lflag_show(struct device *d, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 
@@ -611,7 +611,7 @@ static DEVICE_ATTR(lflag, S_IRUSR, dgnc_tty_lflag_show, NULL);
 
 static ssize_t dgnc_tty_digi_flag_show(struct device *d, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 
@@ -636,7 +636,7 @@ static DEVICE_ATTR(digi_flag, S_IRUSR, dgnc_tty_digi_flag_show, NULL);
 
 static ssize_t dgnc_tty_rxcount_show(struct device *d, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 
@@ -661,7 +661,7 @@ static DEVICE_ATTR(rxcount, S_IRUSR, dgnc_tty_rxcount_show, NULL);
 
 static ssize_t dgnc_tty_txcount_show(struct device *d, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 
@@ -686,7 +686,7 @@ static DEVICE_ATTR(txcount, S_IRUSR, dgnc_tty_txcount_show, NULL);
 
 static ssize_t dgnc_tty_name_show(struct device *d, struct device_attribute *attr, char *buf)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 
diff --git a/drivers/staging/dgnc/dgnc_sysfs.h b/drivers/staging/dgnc/dgnc_sysfs.h
index 4b87ce1cc7a2..68c0de5898a4 100644
--- a/drivers/staging/dgnc/dgnc_sysfs.h
+++ b/drivers/staging/dgnc/dgnc_sysfs.h
@@ -26,14 +26,14 @@
 
 #include <linux/device.h>
 
-struct board_t;
+struct dgnc_board;
 struct channel_t;
 struct un_t;
 struct pci_driver;
 struct class_device;
 
-extern void dgnc_create_ports_sysfiles(struct board_t *bd);
-extern void dgnc_remove_ports_sysfiles(struct board_t *bd);
+extern void dgnc_create_ports_sysfiles(struct dgnc_board *bd);
+extern void dgnc_remove_ports_sysfiles(struct dgnc_board *bd);
 
 extern void dgnc_create_driver_sysfiles(struct pci_driver *);
 extern void dgnc_remove_driver_sysfiles(struct pci_driver *);
diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c
index a7bb6bceb9e7..bd3d487b0714 100644
--- a/drivers/staging/dgnc/dgnc_tty.c
+++ b/drivers/staging/dgnc/dgnc_tty.c
@@ -69,7 +69,7 @@
 /*
  * internal variables
  */
-static struct board_t	*dgnc_BoardsByMajor[256];
+static struct dgnc_board	*dgnc_BoardsByMajor[256];
 static uchar		*dgnc_TmpWriteBuf = NULL;
 static DECLARE_MUTEX(dgnc_TmpWriteSem);
 
@@ -202,7 +202,7 @@ int dgnc_tty_preinit(void)
  *
  * Init the tty subsystem for this board.
  */
-int dgnc_tty_register(struct board_t *brd)
+int dgnc_tty_register(struct dgnc_board *brd)
 {
 	int rc = 0;
 
@@ -341,7 +341,7 @@ int dgnc_tty_register(struct board_t *brd)
  * Init the tty subsystem.  Called once per board after board has been
  * downloaded and init'ed.
  */
-int dgnc_tty_init(struct board_t *brd)
+int dgnc_tty_init(struct dgnc_board *brd)
 {
 	int i;
 	void __iomem *vaddr;
@@ -460,7 +460,7 @@ void dgnc_tty_post_uninit(void)
  * Uninitialize the TTY portion of this driver.  Free all memory and
  * resources.
  */
-void dgnc_tty_uninit(struct board_t *brd)
+void dgnc_tty_uninit(struct dgnc_board *brd)
 {
 	int i = 0;
 
@@ -671,7 +671,7 @@ static void dgnc_wmove(struct channel_t *ch, char *buf, uint n)
  *=======================================================================*/
 void dgnc_input(struct channel_t *ch)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct tty_struct *tp;
 	struct tty_ldisc *ld;
 	uint	rmask;
@@ -867,7 +867,7 @@ void dgnc_input(struct channel_t *ch)
  ************************************************************************/
 void dgnc_carrier(struct channel_t *ch)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 
 	int virt_carrier = 0;
 	int phys_carrier = 0;
@@ -1260,7 +1260,7 @@ void dgnc_wakeup_writes(struct channel_t *ch)
  */
 static int dgnc_tty_open(struct tty_struct *tty, struct file *file)
 {
-	struct board_t	*brd;
+	struct dgnc_board	*brd;
 	struct channel_t *ch;
 	struct un_t	*un;
 	uint		major = 0;
@@ -1667,7 +1667,7 @@ static void dgnc_tty_hangup(struct tty_struct *tty)
 static void dgnc_tty_close(struct tty_struct *tty, struct file *file)
 {
 	struct ktermios *ts;
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 	ulong lock_flags;
@@ -2301,7 +2301,7 @@ static int dgnc_tty_tiocmset(struct tty_struct *tty, struct file *file,
 		unsigned int set, unsigned int clear)
 #endif
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 	int ret = -EIO;
@@ -2360,7 +2360,7 @@ static int dgnc_tty_tiocmset(struct tty_struct *tty, struct file *file,
  */
 static int dgnc_tty_send_break(struct tty_struct *tty, int msec)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 	int ret = -EIO;
@@ -2414,7 +2414,7 @@ static int dgnc_tty_send_break(struct tty_struct *tty, int msec)
  */
 static void dgnc_tty_wait_until_sent(struct tty_struct *tty, int timeout)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 	int rc;
@@ -2450,7 +2450,7 @@ static void dgnc_tty_wait_until_sent(struct tty_struct *tty, int timeout)
  */
 static void dgnc_tty_send_xchar(struct tty_struct *tty, char c)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 	ulong   lock_flags;
@@ -2559,7 +2559,7 @@ static int dgnc_get_modem_info(struct channel_t *ch, unsigned int  __user *value
  */
 static int dgnc_set_modem_info(struct tty_struct *tty, unsigned int command, unsigned int __user *value)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 	int ret = -ENXIO;
@@ -2698,7 +2698,7 @@ static int dgnc_tty_digigeta(struct tty_struct *tty, struct digi_t __user *retin
  */
 static int dgnc_tty_digiseta(struct tty_struct *tty, struct digi_t __user *new_info)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 	struct digi_t new_digi;
@@ -2782,7 +2782,7 @@ static int dgnc_tty_digiseta(struct tty_struct *tty, struct digi_t __user *new_i
  */
 static void dgnc_tty_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 	unsigned long lock_flags;
@@ -2878,7 +2878,7 @@ static void dgnc_tty_unthrottle(struct tty_struct *tty)
 
 static void dgnc_tty_start(struct tty_struct *tty)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 	ulong lock_flags;
@@ -2912,7 +2912,7 @@ static void dgnc_tty_start(struct tty_struct *tty)
 
 static void dgnc_tty_stop(struct tty_struct *tty)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 	ulong lock_flags;
@@ -2959,7 +2959,7 @@ static void dgnc_tty_stop(struct tty_struct *tty)
  */
 static void dgnc_tty_flush_chars(struct tty_struct *tty)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 	ulong lock_flags;
@@ -3056,7 +3056,7 @@ static void dgnc_tty_flush_buffer(struct tty_struct *tty)
 static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 		unsigned long arg)
 {
-	struct board_t *bd;
+	struct dgnc_board *bd;
 	struct channel_t *ch;
 	struct un_t *un;
 	int rc;
diff --git a/drivers/staging/dgnc/dgnc_tty.h b/drivers/staging/dgnc/dgnc_tty.h
index deb388d2f4cf..9d1c2847bd94 100644
--- a/drivers/staging/dgnc/dgnc_tty.h
+++ b/drivers/staging/dgnc/dgnc_tty.h
@@ -24,13 +24,13 @@
 
 #include "dgnc_driver.h"
 
-int	dgnc_tty_register(struct board_t *brd);
+int	dgnc_tty_register(struct dgnc_board *brd);
 
 int	dgnc_tty_preinit(void);
-int     dgnc_tty_init(struct board_t *);
+int     dgnc_tty_init(struct dgnc_board *);
 
 void	dgnc_tty_post_uninit(void);
-void	dgnc_tty_uninit(struct board_t *);
+void	dgnc_tty_uninit(struct dgnc_board *);
 
 void	dgnc_input(struct channel_t *ch);
 void	dgnc_carrier(struct channel_t *ch);
-- 
cgit 


From 8f90ef80490100e5b87cc386110779680a0486c9 Mon Sep 17 00:00:00 2001
From: Lidza Louina <lidza.louina@gmail.com>
Date: Mon, 9 Sep 2013 15:01:23 -0400
Subject: staging: dgnc: removes parentheses around return statements

This patch removes parentheses around return
statements. They aren't needed.

Signed-off-by: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgnc/dgnc_cls.c    |   8 +-
 drivers/staging/dgnc/dgnc_driver.c | 106 +++++++++----------
 drivers/staging/dgnc/dgnc_mgmt.c   |  22 ++--
 drivers/staging/dgnc/dgnc_neo.c    |   8 +-
 drivers/staging/dgnc/dgnc_sysfs.c  | 116 ++++++++++----------
 drivers/staging/dgnc/dgnc_tty.c    | 212 ++++++++++++++++++-------------------
 6 files changed, 236 insertions(+), 236 deletions(-)

diff --git a/drivers/staging/dgnc/dgnc_cls.c b/drivers/staging/dgnc/dgnc_cls.c
index 22875c1834e2..fa1bb633f036 100644
--- a/drivers/staging/dgnc/dgnc_cls.c
+++ b/drivers/staging/dgnc/dgnc_cls.c
@@ -976,17 +976,17 @@ static int cls_drain(struct tty_struct *tty, uint seconds)
 	int rc = 0;
 
 	if (!tty || tty->magic != TTY_MAGIC) {
-		return (-ENXIO);
+		return -ENXIO;
 	}
 
 	un = (struct un_t *) tty->driver_data;
 	if (!un || un->magic != DGNC_UNIT_MAGIC) {
-		return (-ENXIO);
+		return -ENXIO;
 	}
 
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC) {
-		return (-ENXIO);
+		return -ENXIO;
 	}
 
 	DGNC_LOCK(ch->ch_lock, lock_flags);
@@ -1002,7 +1002,7 @@ static int cls_drain(struct tty_struct *tty, uint seconds)
 	if (rc)
 		DPR_IOCTL(("%d Drain - User ctrl c'ed\n", __LINE__));
 
-        return (rc);
+        return rc;
 }
 
 
diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c
index 5b352917a9f2..89c332fc278e 100644
--- a/drivers/staging/dgnc/dgnc_driver.c
+++ b/drivers/staging/dgnc/dgnc_driver.c
@@ -225,7 +225,7 @@ int dgnc_init_module(void)
 	rc = dgnc_start();
 
 	if (rc < 0) {
-		return(rc);
+		return rc;
 	}
 
 	/*
@@ -250,7 +250,7 @@ int dgnc_init_module(void)
 	}
 
 	DPR_INIT(("Finished init_module. Returning %d\n", rc));
-	return (rc);
+	return rc;
 }
 
 
@@ -286,7 +286,7 @@ static int dgnc_start(void)
 			if (rc <= 0) {
 				APR(("Can't register dgnc driver device (%d)\n", rc));
 				rc = -ENXIO;
-				return(rc);
+				return rc;
 			}
 			dgnc_Major = rc;
 
@@ -311,7 +311,7 @@ static int dgnc_start(void)
 
 		if (rc < 0) {
 			APR(("tty preinit - not enough memory (%d)\n", rc));
-			return(rc);
+			return rc;
 		}
 
 		/* Start the poller */
@@ -328,7 +328,7 @@ static int dgnc_start(void)
 		dgnc_driver_state = DRIVER_READY;
 	}
 
-	return(rc);
+	return rc;
 }
 
 /*
@@ -502,7 +502,7 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
 	(struct dgnc_board *) kzalloc(sizeof(struct dgnc_board), GFP_KERNEL);
 	if (!brd) {
 		APR(("memory allocation for board structure failed\n"));
-		return(-ENOMEM);
+		return -ENOMEM;
 	}
 
 	/* make a temporary message buffer for the boot messages */
@@ -511,7 +511,7 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
 	if (!brd->msgbuf) {
 		kfree(brd);
 		APR(("memory allocation for board msgbuf failed\n"));
-		return(-ENOMEM);
+		return -ENOMEM;
 	}
 
 	/* store the info for the board we've found */
@@ -663,7 +663,7 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
 
 	default:
 		APR(("Did not find any compatible Neo or Classic PCI boards in system.\n"));
-		return (-ENXIO);
+		return -ENXIO;
 
 	}
 
@@ -725,11 +725,11 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
 
 	wake_up_interruptible(&brd->state_wait);
 
-	return(0);
+	return 0;
 
 failed:
 
-	return (-ENXIO);
+	return -ENXIO;
 
 }
 
@@ -740,7 +740,7 @@ static int dgnc_finalize_board_init(struct dgnc_board *brd) {
 	DPR_INIT(("dgnc_finalize_board_init() - start\n"));
 
 	if (!brd || brd->magic != DGNC_BOARD_MAGIC)
-		return(-ENODEV);
+		return -ENODEV;
 
 	DPR_INIT(("dgnc_finalize_board_init() - start #2\n"));
 
@@ -756,7 +756,7 @@ static int dgnc_finalize_board_init(struct dgnc_board *brd) {
 			DPR_INIT(("Requested and received usage of IRQ %d\n", brd->irq));
 		}
 	}
-	return(rc);
+	return rc;
 }
 
 /*
@@ -900,7 +900,7 @@ int dgnc_ms_sleep(ulong ms)
 {
 	current->state = TASK_INTERRUPTIBLE;
 	schedule_timeout((ms * HZ) / 1000);
-	return (signal_pending(current));
+	return signal_pending(current);
 }
 
 
@@ -912,47 +912,47 @@ char *dgnc_ioctl_name(int cmd)
 {
 	switch(cmd) {
 
-	case TCGETA:		return("TCGETA");
-	case TCGETS:		return("TCGETS");
-	case TCSETA:		return("TCSETA");
-	case TCSETS:		return("TCSETS");
-	case TCSETAW:		return("TCSETAW");
-	case TCSETSW:		return("TCSETSW");
-	case TCSETAF:		return("TCSETAF");
-	case TCSETSF:		return("TCSETSF");
-	case TCSBRK:		return("TCSBRK");
-	case TCXONC:		return("TCXONC");
-	case TCFLSH:		return("TCFLSH");
-	case TIOCGSID:		return("TIOCGSID");
-
-	case TIOCGETD:		return("TIOCGETD");
-	case TIOCSETD:		return("TIOCSETD");
-	case TIOCGWINSZ:	return("TIOCGWINSZ");
-	case TIOCSWINSZ:	return("TIOCSWINSZ");
-
-	case TIOCMGET:		return("TIOCMGET");
-	case TIOCMSET:		return("TIOCMSET");
-	case TIOCMBIS:		return("TIOCMBIS");
-	case TIOCMBIC:		return("TIOCMBIC");
+	case TCGETA:		return "TCGETA";
+	case TCGETS:		return "TCGETS";
+	case TCSETA:		return "TCSETA";
+	case TCSETS:		return "TCSETS";
+	case TCSETAW:		return "TCSETAW";
+	case TCSETSW:		return "TCSETSW";
+	case TCSETAF:		return "TCSETAF";
+	case TCSETSF:		return "TCSETSF";
+	case TCSBRK:		return "TCSBRK";
+	case TCXONC:		return "TCXONC";
+	case TCFLSH:		return "TCFLSH";
+	case TIOCGSID:		return "TIOCGSID";
+
+	case TIOCGETD:		return "TIOCGETD";
+	case TIOCSETD:		return "TIOCSETD";
+	case TIOCGWINSZ:	return "TIOCGWINSZ";
+	case TIOCSWINSZ:	return "TIOCSWINSZ";
+
+	case TIOCMGET:		return "TIOCMGET";
+	case TIOCMSET:		return "TIOCMSET";
+	case TIOCMBIS:		return "TIOCMBIS";
+	case TIOCMBIC:		return "TIOCMBIC";
 
 	/* from digi.h */
-	case DIGI_SETA:		return("DIGI_SETA");
-	case DIGI_SETAW:	return("DIGI_SETAW");
-	case DIGI_SETAF:	return("DIGI_SETAF");
-	case DIGI_SETFLOW:	return("DIGI_SETFLOW");
-	case DIGI_SETAFLOW:	return("DIGI_SETAFLOW");
-	case DIGI_GETFLOW:	return("DIGI_GETFLOW");
-	case DIGI_GETAFLOW:	return("DIGI_GETAFLOW");
-	case DIGI_GETA:		return("DIGI_GETA");
-	case DIGI_GEDELAY:	return("DIGI_GEDELAY");
-	case DIGI_SEDELAY:	return("DIGI_SEDELAY");
-	case DIGI_GETCUSTOMBAUD: return("DIGI_GETCUSTOMBAUD");
-	case DIGI_SETCUSTOMBAUD: return("DIGI_SETCUSTOMBAUD");
-	case TIOCMODG:		return("TIOCMODG");
-	case TIOCMODS:		return("TIOCMODS");
-	case TIOCSDTR:		return("TIOCSDTR");
-	case TIOCCDTR:		return("TIOCCDTR");
-
-	default:		return("unknown");
+	case DIGI_SETA:		return "DIGI_SETA";
+	case DIGI_SETAW:	return "DIGI_SETAW";
+	case DIGI_SETAF:	return "DIGI_SETAF";
+	case DIGI_SETFLOW:	return "DIGI_SETFLOW";
+	case DIGI_SETAFLOW:	return "DIGI_SETAFLOW";
+	case DIGI_GETFLOW:	return "DIGI_GETFLOW";
+	case DIGI_GETAFLOW:	return "DIGI_GETAFLOW";
+	case DIGI_GETA:		return "DIGI_GETA";
+	case DIGI_GEDELAY:	return "DIGI_GEDELAY";
+	case DIGI_SEDELAY:	return "DIGI_SEDELAY";
+	case DIGI_GETCUSTOMBAUD: return "DIGI_GETCUSTOMBAUD";
+	case DIGI_SETCUSTOMBAUD: return "DIGI_SETCUSTOMBAUD";
+	case TIOCMODG:		return "TIOCMODG";
+	case TIOCMODS:		return "TIOCMODS";
+	case TIOCSDTR:		return "TIOCSDTR";
+	case TIOCCDTR:		return "TIOCCDTR";
+
+	default:		return "unknown";
 	}
 }
diff --git a/drivers/staging/dgnc/dgnc_mgmt.c b/drivers/staging/dgnc/dgnc_mgmt.c
index c4629d7c80b2..bb39f5dfa043 100644
--- a/drivers/staging/dgnc/dgnc_mgmt.c
+++ b/drivers/staging/dgnc/dgnc_mgmt.c
@@ -74,13 +74,13 @@ int dgnc_mgmt_open(struct inode *inode, struct file *file)
 		/* Only allow 1 open at a time on mgmt device */
 		if (dgnc_mgmt_in_use[minor]) {
 			DGNC_UNLOCK(dgnc_global_lock, lock_flags);
-			return (-EBUSY);
+			return -EBUSY;
 		}
 		dgnc_mgmt_in_use[minor]++;
 	}
 	else {
 		DGNC_UNLOCK(dgnc_global_lock, lock_flags);
-		return (-ENXIO);
+		return -ENXIO;
 	}
 
 	DGNC_UNLOCK(dgnc_global_lock, lock_flags);
@@ -154,7 +154,7 @@ long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 			ddi.dinfo_nboards, ddi.dinfo_version));
 
 		if (copy_to_user(uarg, &ddi, sizeof (ddi)))
-			return(-EFAULT);
+			return -EFAULT;
 
 		break;
 	}
@@ -166,13 +166,13 @@ long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		struct digi_info di;
 
 		if (copy_from_user(&brd, uarg, sizeof(int))) {
-			return(-EFAULT);
+			return -EFAULT;
 		}
 
 		DPR_MGMT(("DIGI_GETBD asking about board: %d\n", brd));
 
 		if ((brd < 0) || (brd > dgnc_NumBoards) || (dgnc_NumBoards == 0))
-			return (-ENODEV);
+			return -ENODEV;
 
 		memset(&di, 0, sizeof(di));
 
@@ -196,7 +196,7 @@ long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 			di.info_bdtype, di.info_bdstate, di.info_nports, di.info_physsize));
 
 		if (copy_to_user(uarg, &di, sizeof (di)))
-			return (-EFAULT);
+			return -EFAULT;
 
 		break;
 	}
@@ -210,7 +210,7 @@ long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		uint channel = 0;
 
 		if (copy_from_user(&ni, uarg, sizeof(struct ni_info))) {
-			return(-EFAULT);
+			return -EFAULT;
 		}
 
 		DPR_MGMT(("DIGI_GETBD asking about board: %d channel: %d\n",
@@ -221,16 +221,16 @@ long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 
 		/* Verify boundaries on board */
 		if ((board < 0) || (board > dgnc_NumBoards) || (dgnc_NumBoards == 0))
-			return (-ENODEV);
+			return -ENODEV;
 
 		/* Verify boundaries on channel */
 		if ((channel < 0) || (channel > dgnc_Board[board]->nasync))
-			return (-ENODEV);
+			return -ENODEV;
 
 		ch = dgnc_Board[board]->channels[channel];
 
 		if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-			return (-ENODEV);
+			return -ENODEV;
 
 		memset(&ni, 0, sizeof(ni));
 		ni.board = board;
@@ -291,7 +291,7 @@ long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
 
 		if (copy_to_user(uarg, &ni, sizeof(ni)))
-			return (-EFAULT);
+			return -EFAULT;
 
 		break;
 	}
diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c
index 61650515b5d4..9421c71d8e51 100644
--- a/drivers/staging/dgnc/dgnc_neo.c
+++ b/drivers/staging/dgnc/dgnc_neo.c
@@ -1404,17 +1404,17 @@ static int neo_drain(struct tty_struct *tty, uint seconds)
 	int rc = 0;
 
 	if (!tty || tty->magic != TTY_MAGIC) {
-		return (-ENXIO);
+		return -ENXIO;
 	}
 
 	un = (struct un_t *) tty->driver_data;
 	if (!un || un->magic != DGNC_UNIT_MAGIC) {
-		return (-ENXIO);
+		return -ENXIO;
 	}
 
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC) {
-		return (-ENXIO);
+		return -ENXIO;
 	}
 
 	DPR_IOCTL(("%d Drain wait started.\n", __LINE__));
@@ -1439,7 +1439,7 @@ static int neo_drain(struct tty_struct *tty, uint seconds)
 		DPR_IOCTL(("%d Drain wait finished.\n", __LINE__));
 	}
 
-	return (rc);
+	return rc;
 }
 
 
diff --git a/drivers/staging/dgnc/dgnc_sysfs.c b/drivers/staging/dgnc/dgnc_sysfs.c
index 03d3e2f91ee8..5834e0c17ee0 100644
--- a/drivers/staging/dgnc/dgnc_sysfs.c
+++ b/drivers/staging/dgnc/dgnc_sysfs.c
@@ -152,13 +152,13 @@ void dgnc_remove_driver_sysfiles(struct pci_driver *dgnc_driver)
 
 #define DGNC_VERIFY_BOARD(p, bd)			\
 	if (!p)						\
-		return (0);				\
+		return 0;				\
 							\
 	bd = dev_get_drvdata(p);			\
 	if (!bd || bd->magic != DGNC_BOARD_MAGIC)	\
-		return (0);				\
+		return 0;				\
 	if (bd->state != BOARD_READY)			\
-		return (0);				\
+		return 0;				\
 
 
 
@@ -432,18 +432,18 @@ static ssize_t dgnc_tty_state_show(struct device *d, struct device_attribute *at
 	struct un_t *un;
 
 	if (!d)
-		return (0);
+		return 0;
 	un = (struct un_t *) dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return (0);
+		return 0;
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return (0);
+		return 0;
 	bd = ch->ch_bd;
 	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return (0);
+		return 0;
 	if (bd->state != BOARD_READY)
-		return (0);
+		return 0;
 
 	return snprintf(buf, PAGE_SIZE, "%s", un->un_open_count ? "Open" : "Closed");
 }
@@ -457,18 +457,18 @@ static ssize_t dgnc_tty_baud_show(struct device *d, struct device_attribute *att
 	struct un_t *un;
 
 	if (!d)
-		return (0);
+		return 0;
 	un = (struct un_t *) dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return (0);
+		return 0;
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return (0);
+		return 0;
 	bd = ch->ch_bd;
 	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return (0);
+		return 0;
 	if (bd->state != BOARD_READY)
-		return (0);
+		return 0;
 
 	return snprintf(buf, PAGE_SIZE, "%d\n", ch->ch_old_baud);
 }
@@ -482,18 +482,18 @@ static ssize_t dgnc_tty_msignals_show(struct device *d, struct device_attribute
 	struct un_t *un;
 
 	if (!d)
-		return (0);
+		return 0;
 	un = (struct un_t *) dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return (0);
+		return 0;
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return (0);
+		return 0;
 	bd = ch->ch_bd;
 	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return (0);
+		return 0;
 	if (bd->state != BOARD_READY)
-		return (0);
+		return 0;
 
 	if (ch->ch_open_count) {
 		return snprintf(buf, PAGE_SIZE, "%s %s %s %s %s %s\n",
@@ -516,18 +516,18 @@ static ssize_t dgnc_tty_iflag_show(struct device *d, struct device_attribute *at
 	struct un_t *un;
 
 	if (!d)
-		return (0);
+		return 0;
 	un = (struct un_t *) dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return (0);
+		return 0;
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return (0);
+		return 0;
 	bd = ch->ch_bd;
 	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return (0);
+		return 0;
 	if (bd->state != BOARD_READY)
-		return (0);
+		return 0;
 
 	return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_c_iflag);
 }
@@ -541,18 +541,18 @@ static ssize_t dgnc_tty_cflag_show(struct device *d, struct device_attribute *at
 	struct un_t *un;
 
 	if (!d)
-		return (0);
+		return 0;
 	un = (struct un_t *) dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return (0);
+		return 0;
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return (0);
+		return 0;
 	bd = ch->ch_bd;
 	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return (0);
+		return 0;
 	if (bd->state != BOARD_READY)
-		return (0);
+		return 0;
 
 	return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_c_cflag);
 }
@@ -566,18 +566,18 @@ static ssize_t dgnc_tty_oflag_show(struct device *d, struct device_attribute *at
 	struct un_t *un;
 
 	if (!d)
-		return (0);
+		return 0;
 	un = (struct un_t *) dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return (0);
+		return 0;
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return (0);
+		return 0;
 	bd = ch->ch_bd;
 	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return (0);
+		return 0;
 	if (bd->state != BOARD_READY)
-		return (0);
+		return 0;
 
 	return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_c_oflag);
 }
@@ -591,18 +591,18 @@ static ssize_t dgnc_tty_lflag_show(struct device *d, struct device_attribute *at
 	struct un_t *un;
 
 	if (!d)
-		return (0);
+		return 0;
 	un = (struct un_t *) dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return (0);
+		return 0;
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return (0);
+		return 0;
 	bd = ch->ch_bd;
 	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return (0);
+		return 0;
 	if (bd->state != BOARD_READY)
-		return (0);
+		return 0;
 
 	return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_c_lflag);
 }
@@ -616,18 +616,18 @@ static ssize_t dgnc_tty_digi_flag_show(struct device *d, struct device_attribute
 	struct un_t *un;
 
 	if (!d)
-		return (0);
+		return 0;
 	un = (struct un_t *) dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return (0);
+		return 0;
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return (0);
+		return 0;
 	bd = ch->ch_bd;
 	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return (0);
+		return 0;
 	if (bd->state != BOARD_READY)
-		return (0);
+		return 0;
 
 	return snprintf(buf, PAGE_SIZE, "%x\n", ch->ch_digi.digi_flags);
 }
@@ -641,18 +641,18 @@ static ssize_t dgnc_tty_rxcount_show(struct device *d, struct device_attribute *
 	struct un_t *un;
 
 	if (!d)
-		return (0);
+		return 0;
 	un = (struct un_t *) dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return (0);
+		return 0;
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return (0);
+		return 0;
 	bd = ch->ch_bd;
 	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return (0);
+		return 0;
 	if (bd->state != BOARD_READY)
-		return (0);
+		return 0;
 
 	return snprintf(buf, PAGE_SIZE, "%ld\n", ch->ch_rxcount);
 }
@@ -666,18 +666,18 @@ static ssize_t dgnc_tty_txcount_show(struct device *d, struct device_attribute *
 	struct un_t *un;
 
 	if (!d)
-		return (0);
+		return 0;
 	un = (struct un_t *) dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return (0);
+		return 0;
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return (0);
+		return 0;
 	bd = ch->ch_bd;
 	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return (0);
+		return 0;
 	if (bd->state != BOARD_READY)
-		return (0);
+		return 0;
 
 	return snprintf(buf, PAGE_SIZE, "%ld\n", ch->ch_txcount);
 }
@@ -691,18 +691,18 @@ static ssize_t dgnc_tty_name_show(struct device *d, struct device_attribute *att
 	struct un_t *un;
 
 	if (!d)
-		return (0);
+		return 0;
 	un = (struct un_t *) dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return (0);
+		return 0;
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return (0);
+		return 0;
 	bd = ch->ch_bd;
 	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return (0);
+		return 0;
 	if (bd->state != BOARD_READY)
-		return (0);
+		return 0;
 
 	return snprintf(buf, PAGE_SIZE, "%sn%d%c\n",
 		(un->un_type == DGNC_PRINT) ? "pr" : "tty",
diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c
index bd3d487b0714..a0af01d79364 100644
--- a/drivers/staging/dgnc/dgnc_tty.c
+++ b/drivers/staging/dgnc/dgnc_tty.c
@@ -190,10 +190,10 @@ int dgnc_tty_preinit(void)
 
 	if (!dgnc_TmpWriteBuf) {
 		DPR_INIT(("unable to allocate tmp write buf"));
-		return (-ENOMEM);
+		return -ENOMEM;
 	}
 
-	return(0);
+	return 0;
 }
 
 
@@ -232,7 +232,7 @@ int dgnc_tty_register(struct dgnc_board *brd)
 	 */
 	brd->SerialDriver.ttys = kzalloc(brd->maxports * sizeof(struct tty_struct *), GFP_KERNEL);
 	if (!brd->SerialDriver.ttys)
-		return(-ENOMEM);
+		return -ENOMEM;
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
 	brd->SerialDriver.refcount = brd->TtyRefCnt;
@@ -242,12 +242,12 @@ int dgnc_tty_register(struct dgnc_board *brd)
 
 	brd->SerialDriver.termios = kzalloc(brd->maxports * sizeof(struct ktermios *), GFP_KERNEL);
 	if (!brd->SerialDriver.termios)
-		return(-ENOMEM);
+		return -ENOMEM;
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(3,0,0)
 	brd->SerialDriver.termios_locked = kzalloc(brd->maxports * sizeof(struct ktermios *), GFP_KERNEL);
 	if (!brd->SerialDriver.termios_locked)
-		return(-ENOMEM);
+		return -ENOMEM;
 #endif
 	/*
 	 * Entry points for driver.  Called by the kernel from
@@ -260,7 +260,7 @@ int dgnc_tty_register(struct dgnc_board *brd)
 		rc = tty_register_driver(&brd->SerialDriver);
 		if (rc < 0) {
 			APR(("Can't register tty device (%d)\n", rc));
-			return(rc);
+			return rc;
 		}
 		brd->dgnc_Major_Serial_Registered = TRUE;
 	}
@@ -291,7 +291,7 @@ int dgnc_tty_register(struct dgnc_board *brd)
 	 */
 	brd->PrintDriver.ttys = kzalloc(brd->maxports * sizeof(struct tty_struct *), GFP_KERNEL);
 	if (!brd->PrintDriver.ttys)
-		return(-ENOMEM);
+		return -ENOMEM;
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
 	brd->PrintDriver.refcount = brd->TtyRefCnt;
@@ -301,12 +301,12 @@ int dgnc_tty_register(struct dgnc_board *brd)
 
 	brd->PrintDriver.termios = kzalloc(brd->maxports * sizeof(struct ktermios *), GFP_KERNEL);
 	if (!brd->PrintDriver.termios)
-		return(-ENOMEM);
+		return -ENOMEM;
 
 #if LINUX_VERSION_CODE < KERNEL_VERSION(3,0,0)
 	brd->PrintDriver.termios_locked = kzalloc(brd->maxports * sizeof(struct ktermios *), GFP_KERNEL);
 	if (!brd->PrintDriver.termios_locked)
-		return(-ENOMEM);
+		return -ENOMEM;
 #endif
 
 	/*
@@ -320,7 +320,7 @@ int dgnc_tty_register(struct dgnc_board *brd)
 		rc = tty_register_driver(&brd->PrintDriver);
 		if (rc < 0) {
 			APR(("Can't register Transparent Print device (%d)\n", rc));
-			return(rc);
+			return rc;
 		}
 		brd->dgnc_Major_TransparentPrint_Registered = TRUE;
 	}
@@ -331,7 +331,7 @@ int dgnc_tty_register(struct dgnc_board *brd)
 
 	DPR_INIT(("DGNC REGISTER TTY: MAJOR: %d\n", brd->SerialDriver.major));
 
-	return (rc);
+	return rc;
 }
 
 
@@ -348,7 +348,7 @@ int dgnc_tty_init(struct dgnc_board *brd)
 	struct channel_t *ch;
 
 	if (!brd)
-		return (-ENXIO);
+		return -ENXIO;
 
 	DPR_INIT(("dgnc_tty_init start\n"));
 
@@ -436,7 +436,7 @@ int dgnc_tty_init(struct dgnc_board *brd)
 
 	DPR_INIT(("dgnc_tty_init finish\n"));
 
-	return (0);
+	return 0;
 }
 
 
@@ -1473,7 +1473,7 @@ static int dgnc_tty_open(struct tty_struct *tty, struct file *file)
 	DGNC_UNLOCK(ch->ch_lock, lock_flags);
 
 	DPR_OPEN(("dgnc_tty_open finished\n"));
-	return (rc);
+	return rc;
 }
 
 
@@ -1491,12 +1491,12 @@ static int dgnc_block_til_ready(struct tty_struct *tty, struct file *file, struc
 	int	sleep_on_un_flags = 0;
 
 	if (!tty || tty->magic != TTY_MAGIC || !file || !ch || ch->magic != DGNC_CHANNEL_MAGIC) {
-		return (-ENXIO);
+		return -ENXIO;
 	}
 
 	un = tty->driver_data;
 	if (!un || un->magic != DGNC_UNIT_MAGIC) {
-		return (-ENXIO);
+		return -ENXIO;
 	}
 
 	DPR_OPEN(("dgnc_block_til_ready - before block.\n"));
@@ -1624,12 +1624,12 @@ static int dgnc_block_til_ready(struct tty_struct *tty, struct file *file, struc
 
 	if (retval) {
 		DPR_OPEN(("dgnc_block_til_ready - done. error. retval: %x\n", retval));
-		return(retval);
+		return retval;
 	}
 
 	DPR_OPEN(("dgnc_block_til_ready - done no error. jiffies: %lu\n", jiffies));
 
-	return(0);
+	return 0;
 }
 
 
@@ -1843,15 +1843,15 @@ static int dgnc_tty_chars_in_buffer(struct tty_struct *tty)
 	ulong   lock_flags = 0;
 
 	if (tty == NULL)
-		return(0);
+		return 0;
 
 	un = tty->driver_data;
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return (0);
+		return 0;
 
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return (0);
+		return 0;
 
 	DGNC_LOCK(ch->ch_lock, lock_flags);
 
@@ -1873,7 +1873,7 @@ static int dgnc_tty_chars_in_buffer(struct tty_struct *tty)
 	DPR_WRITE(("dgnc_tty_chars_in_buffer. Port: %x - %d (head: %d tail: %d)\n",
 		ch->ch_portnum, chars, thead, ttail));
 
-	return(chars);
+	return chars;
 }
 
 
@@ -1891,22 +1891,22 @@ static int dgnc_maxcps_room(struct tty_struct *tty, int bytes_available)
 	struct un_t *un = NULL;
 
 	if (!tty)
-		return (bytes_available);
+		return bytes_available;
 
 	un = tty->driver_data;
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return (bytes_available);
+		return bytes_available;
 
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return (bytes_available);
+		return bytes_available;
 
 	/*
 	 * If its not the Transparent print device, return
 	 * the full data amount.
 	 */
 	if (un->un_type != DGNC_PRINT)
-		return (bytes_available);
+		return bytes_available;
 
 	if (ch->ch_digi.digi_maxcps > 0 && ch->ch_digi.digi_bufsize > 0 ) {
 		int cps_limit = 0;
@@ -1931,7 +1931,7 @@ static int dgnc_maxcps_room(struct tty_struct *tty, int bytes_available)
 		bytes_available = min(cps_limit, bytes_available);
 	}
 
-	return (bytes_available);
+	return bytes_available;
 }
 
 
@@ -1951,15 +1951,15 @@ static int dgnc_tty_write_room(struct tty_struct *tty)
 	ulong   lock_flags = 0;
 
 	if (tty == NULL || dgnc_TmpWriteBuf == NULL)
-		return(0);
+		return 0;
 
 	un = tty->driver_data;
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return (0);
+		return 0;
 
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return (0);
+		return 0;
 
 	DGNC_LOCK(ch->ch_lock, lock_flags);
 
@@ -1994,7 +1994,7 @@ static int dgnc_tty_write_room(struct tty_struct *tty)
 
 	DPR_WRITE(("dgnc_tty_write_room - %d tail: %d head: %d\n", ret, tail, head));
 
-	return(ret);
+	return ret;
 }
 
 
@@ -2037,18 +2037,18 @@ static int dgnc_tty_write(struct tty_struct *tty,
 	int from_user = 0;
 
 	if (tty == NULL || dgnc_TmpWriteBuf == NULL)
-		return(0);
+		return 0;
 
 	un = tty->driver_data;
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return(0);
+		return 0;
 
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return(0);
+		return 0;
 
 	if (!count)
-		return(0);
+		return 0;
 
 	DPR_WRITE(("dgnc_tty_write: Port: %x tty=%p user=%d len=%d\n",
 		ch->ch_portnum, tty, from_user, count));
@@ -2090,7 +2090,7 @@ static int dgnc_tty_write(struct tty_struct *tty,
 	 */
 	if (count <= 0) {
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
-		return(0);
+		return 0;
 	}
 
 	/*
@@ -2120,7 +2120,7 @@ static int dgnc_tty_write(struct tty_struct *tty,
 	 */
 	if (count <= 0) {
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
-		return(0);
+		return 0;
 	}
 
 	if (from_user) {
@@ -2136,7 +2136,7 @@ static int dgnc_tty_write(struct tty_struct *tty,
 		 */
 		/* we're allowed to block if it's from_user */
 		if (down_interruptible(&dgnc_TmpWriteSem)) {
-			return (-EINTR);
+			return -EINTR;
 		}
 
 		/*
@@ -2147,7 +2147,7 @@ static int dgnc_tty_write(struct tty_struct *tty,
 
 		if (!count) {
 			up(&dgnc_TmpWriteSem);
-			return(-EFAULT);
+			return -EFAULT;
 		}
 
 		DGNC_LOCK(ch->ch_lock, lock_flags);
@@ -2229,7 +2229,7 @@ static int dgnc_tty_write(struct tty_struct *tty,
 		ch->ch_bd->bd_ops->copy_data_from_queue_to_uart(ch);
 	}
 
-	return (count);
+	return count;
 }
 
 
@@ -2349,7 +2349,7 @@ static int dgnc_tty_tiocmset(struct tty_struct *tty, struct file *file,
 
 	DPR_IOCTL(("dgnc_tty_tiocmset finish\n"));
 
-	return (0);
+	return 0;
 }
 
 
@@ -2402,7 +2402,7 @@ static int dgnc_tty_send_break(struct tty_struct *tty, int msec)
 
 	DPR_IOCTL(("dgnc_tty_send_break finish\n"));
 
-	return (0);
+	return 0;
 
 }
 
@@ -2497,7 +2497,7 @@ static inline int dgnc_get_mstat(struct channel_t *ch)
 	DPR_IOCTL(("dgnc_getmstat start\n"));
 
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return(-ENXIO);
+		return -ENXIO;
 
 	DGNC_LOCK(ch->ch_lock, lock_flags);
 
@@ -2522,7 +2522,7 @@ static inline int dgnc_get_mstat(struct channel_t *ch)
 
 	DPR_IOCTL(("dgnc_getmstat finish\n"));
 
-	return(result);
+	return result;
 }
 
 
@@ -2538,17 +2538,17 @@ static int dgnc_get_modem_info(struct channel_t *ch, unsigned int  __user *value
 	DPR_IOCTL(("dgnc_get_modem_info start\n"));
 
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return(-ENXIO);
+		return -ENXIO;
 
 	result = dgnc_get_mstat(ch);
 
 	if (result < 0)
-		return (-ENXIO);
+		return -ENXIO;
 
 	rc = put_user(result, value);
 
 	DPR_IOCTL(("dgnc_get_modem_info finish\n"));
-	return(rc);
+	return rc;
 }
 
 
@@ -2587,7 +2587,7 @@ static int dgnc_set_modem_info(struct tty_struct *tty, unsigned int command, uns
 
 	ret = get_user(arg, value);
 	if (ret)
-		return(ret);
+		return ret;
 
 	switch (command) {
 	case TIOCMBIS:
@@ -2631,7 +2631,7 @@ static int dgnc_set_modem_info(struct tty_struct *tty, unsigned int command, uns
 		break;
 
 	default:
-		return(-EINVAL);
+		return -EINVAL;
 	}
 
 	DGNC_LOCK(ch->ch_lock, lock_flags);
@@ -2642,7 +2642,7 @@ static int dgnc_set_modem_info(struct tty_struct *tty, unsigned int command, uns
 
 	DPR_IOCTL(("dgnc_set_modem_info finish\n"));
 
-	return (0);
+	return 0;
 }
 
 
@@ -2662,18 +2662,18 @@ static int dgnc_tty_digigeta(struct tty_struct *tty, struct digi_t __user *retin
 	ulong   lock_flags;
 
 	if (!retinfo)
-		return (-EFAULT);
+		return -EFAULT;
 
 	if (!tty || tty->magic != TTY_MAGIC)
-		return (-EFAULT);
+		return -EFAULT;
 
 	un = tty->driver_data;
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return (-EFAULT);
+		return -EFAULT;
 
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return (-EFAULT);
+		return -EFAULT;
 
 	memset(&tmp, 0, sizeof(tmp));
 
@@ -2682,9 +2682,9 @@ static int dgnc_tty_digigeta(struct tty_struct *tty, struct digi_t __user *retin
 	DGNC_UNLOCK(ch->ch_lock, lock_flags);
 
 	if (copy_to_user(retinfo, &tmp, sizeof(*retinfo)))
-		return (-EFAULT);
+		return -EFAULT;
 
-	return (0);
+	return 0;
 }
 
 
@@ -2707,23 +2707,23 @@ static int dgnc_tty_digiseta(struct tty_struct *tty, struct digi_t __user *new_i
 	DPR_IOCTL(("DIGI_SETA start\n"));
 
 	if (!tty || tty->magic != TTY_MAGIC)
-		return (-EFAULT);
+		return -EFAULT;
 
 	un = tty->driver_data;
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return (-EFAULT);
+		return -EFAULT;
 
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return (-EFAULT);
+		return -EFAULT;
 
 	bd = ch->ch_bd;
 	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return (-EFAULT);
+		return -EFAULT;
 
 	if (copy_from_user(&new_digi, new_info, sizeof(struct digi_t))) {
 		DPR_IOCTL(("DIGI_SETA failed copy_from_user\n"));
-		return(-EFAULT);
+		return -EFAULT;
 	}
 
 	DGNC_LOCK(ch->ch_lock, lock_flags);
@@ -2773,7 +2773,7 @@ static int dgnc_tty_digiseta(struct tty_struct *tty, struct digi_t __user *new_i
 
 	DPR_IOCTL(("DIGI_SETA finish\n"));
 
-	return(0);
+	return 0;
 }
 
 
@@ -3064,19 +3064,19 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 	void __user *uarg = (void __user *) arg;
 
 	if (!tty || tty->magic != TTY_MAGIC)
-		return (-ENODEV);
+		return -ENODEV;
 
 	un = tty->driver_data;
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
-		return (-ENODEV);
+		return -ENODEV;
 
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
-		return (-ENODEV);
+		return -ENODEV;
 
 	bd = ch->ch_bd;
 	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
-		return (-ENODEV);
+		return -ENODEV;
 
 	DPR_IOCTL(("dgnc_tty_ioctl start on port %d - cmd %s (%x), arg %lx\n",
 		ch->ch_portnum, dgnc_ioctl_name(cmd), cmd, arg));
@@ -3086,7 +3086,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 	if (un->un_open_count <= 0) {
 		DPR_BASIC(("dgnc_tty_ioctl - unit not open.\n"));
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
-		return(-EIO);
+		return -EIO;
 	}
 
 	switch (cmd) {
@@ -3105,14 +3105,14 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 		rc = tty_check_change(tty);
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
 		if (rc) {
-			return(rc);
+			return rc;
 		}
 
 		rc = ch->ch_bd->bd_ops->drain(tty, 0);
 
 		if (rc) {
 			DPR_IOCTL(("dgnc_tty_ioctl - bad return: %d ", rc));
-			return(-EINTR);
+			return -EINTR;
 		}
 
 		DGNC_LOCK(ch->ch_lock, lock_flags);
@@ -3126,7 +3126,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 		DPR_IOCTL(("dgnc_tty_ioctl finish on port %d - cmd %s (%x), arg %lx\n",
 			ch->ch_portnum, dgnc_ioctl_name(cmd), cmd, arg));
 
-		return(0);
+		return 0;
 
 
 	case TCSBRKP:
@@ -3138,13 +3138,13 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 		rc = tty_check_change(tty);
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
 		if (rc) {
-			return(rc);
+			return rc;
 		}
 
 		rc = ch->ch_bd->bd_ops->drain(tty, 0);
 		if (rc) {
 			DPR_IOCTL(("dgnc_tty_ioctl - bad return: %d ", rc));
-			return(-EINTR);
+			return -EINTR;
 		}
 
 		DGNC_LOCK(ch->ch_lock, lock_flags);
@@ -3156,19 +3156,19 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 		DPR_IOCTL(("dgnc_tty_ioctl finish on port %d - cmd %s (%x), arg %lx\n",
 			ch->ch_portnum, dgnc_ioctl_name(cmd), cmd, arg));
 
-		return(0);
+		return 0;
 
 	case TIOCSBRK:
 		rc = tty_check_change(tty);
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
 		if (rc) {
-			return(rc);
+			return rc;
 		}
 
 		rc = ch->ch_bd->bd_ops->drain(tty, 0);
 		if (rc) {
 			DPR_IOCTL(("dgnc_tty_ioctl - bad return: %d ", rc));
-			return(-EINTR);
+			return -EINTR;
 		}
 
 		DGNC_LOCK(ch->ch_lock, lock_flags);
@@ -3180,7 +3180,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 		DPR_IOCTL(("dgnc_tty_ioctl finish on port %d - cmd %s (%x), arg %lx\n",
 			ch->ch_portnum, dgnc_ioctl_name(cmd), cmd, arg));
 
-		return(0);
+		return 0;
 
 	case TIOCCBRK:
 		/* Do Nothing */
@@ -3192,31 +3192,31 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
 
 		rc = put_user(C_CLOCAL(tty) ? 1 : 0, (unsigned long __user *) arg);
-		return(rc);
+		return rc;
 
 	case TIOCSSOFTCAR:
 
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
 		rc = get_user(arg, (unsigned long __user *) arg);
 		if (rc)
-			return(rc);
+			return rc;
 
 		DGNC_LOCK(ch->ch_lock, lock_flags);
 		tty->termios.c_cflag = ((tty->termios.c_cflag & ~CLOCAL) | (arg ? CLOCAL : 0));
 		ch->ch_bd->bd_ops->param(tty);
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
 
-		return(0);
+		return 0;
 
 	case TIOCMGET:
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
-		return(dgnc_get_modem_info(ch, uarg));
+		return dgnc_get_modem_info(ch, uarg);
 
 	case TIOCMBIS:
 	case TIOCMBIC:
 	case TIOCMSET:
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
-		return(dgnc_set_modem_info(tty, cmd, uarg));
+		return dgnc_set_modem_info(tty, cmd, uarg);
 
 		/*
 		 * Here are any additional ioctl's that we want to implement
@@ -3235,7 +3235,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 		rc = tty_check_change(tty);
 		if (rc) {
 			DGNC_UNLOCK(ch->ch_lock, lock_flags);
-			return(rc);
+			return rc;
 		}
 
 		if ((arg == TCIFLUSH) || (arg == TCIOFLUSH)) {
@@ -3265,7 +3265,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 
 		/* pretend we didn't recognize this IOCTL */
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
-		return(-ENOIOCTLCMD);
+		return -ENOIOCTLCMD;
 	case TCSETSF:
 	case TCSETSW:
 		/*
@@ -3291,14 +3291,14 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 		rc = ch->ch_bd->bd_ops->drain(tty, 0);
 		if (rc) {
 			DPR_IOCTL(("dgnc_tty_ioctl - bad return: %d\n", rc));
-			return(-EINTR);
+			return -EINTR;
 		}
 
 		DPR_IOCTL(("dgnc_tty_ioctl finish on port %d - cmd %s (%x), arg %lx\n",
 			ch->ch_portnum, dgnc_ioctl_name(cmd), cmd, arg));
 
 		/* pretend we didn't recognize this */
-		return(-ENOIOCTLCMD);
+		return -ENOIOCTLCMD;
 
 	case TCSETAW:
 
@@ -3306,21 +3306,21 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 		rc = ch->ch_bd->bd_ops->drain(tty, 0);
 		if (rc) {
 			DPR_IOCTL(("dgnc_tty_ioctl - bad return: %d ", rc));
-			return(-EINTR);
+			return -EINTR;
 		}
 
 		/* pretend we didn't recognize this */
-		return(-ENOIOCTLCMD);
+		return -ENOIOCTLCMD;
 
 	case TCXONC:
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
 		/* Make the ld do it */
-		return(-ENOIOCTLCMD);
+		return -ENOIOCTLCMD;
 
 	case DIGI_GETA:
 		/* get information for ditty */
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
-		return(dgnc_tty_digigeta(tty, uarg));
+		return dgnc_tty_digigeta(tty, uarg);
 
 	case DIGI_SETAW:
 	case DIGI_SETAF:
@@ -3332,7 +3332,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 			rc = ch->ch_bd->bd_ops->drain(tty, 0);
 			if (rc) {
 				DPR_IOCTL(("dgnc_tty_ioctl - bad return: %d ", rc));
-				return(-EINTR);
+				return -EINTR;
 			}
 			DGNC_LOCK(ch->ch_lock, lock_flags);
 		}
@@ -3343,7 +3343,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 
 	case DIGI_SETA:
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
-		return(dgnc_tty_digiseta(tty, uarg));
+		return dgnc_tty_digiseta(tty, uarg);
 
 	case DIGI_LOOPBACK:
 		{
@@ -3352,7 +3352,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 			DGNC_UNLOCK(ch->ch_lock, lock_flags);
 			rc = get_user(loopback, (unsigned int __user *) arg);
 			if (rc)
-				return(rc);
+				return rc;
 			DGNC_LOCK(ch->ch_lock, lock_flags);
 
 			/* Enable/disable internal loopback for this port */
@@ -3363,13 +3363,13 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 
 			ch->ch_bd->bd_ops->param(tty);
 			DGNC_UNLOCK(ch->ch_lock, lock_flags);
-			return(0);
+			return 0;
 		}
 
 	case DIGI_GETCUSTOMBAUD:
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
 		rc = put_user(ch->ch_custom_speed, (unsigned int __user *) arg);
-		return(rc);
+		return rc;
 
 	case DIGI_SETCUSTOMBAUD:
 	{
@@ -3378,12 +3378,12 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
 		rc = get_user(new_rate, (unsigned int __user *) arg);
 		if (rc)
-			return(rc);
+			return rc;
 		DGNC_LOCK(ch->ch_lock, lock_flags);
 		dgnc_set_custom_speed(ch, new_rate);
 		ch->ch_bd->bd_ops->param(tty);
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
-		return(0);
+		return 0;
 	}
 
 	/*
@@ -3399,11 +3399,11 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
 		rc = get_user(c, (unsigned char __user *) arg);
 		if (rc)
-			return(rc);
+			return rc;
 		DGNC_LOCK(ch->ch_lock, lock_flags);
 		ch->ch_bd->bd_ops->send_immediate_char(ch, c);
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
-		return(0);
+		return 0;
 	}
 
 	/*
@@ -3427,9 +3427,9 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
 
 		if (copy_to_user(uarg, &buf, sizeof(struct digi_getcounter))) {
-			return (-EFAULT);
+			return -EFAULT;
 		}
-		return(0);
+		return 0;
 	}
 
 	/*
@@ -3454,7 +3454,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
 		rc = put_user(events, (unsigned int __user *) arg);
-		return(rc);
+		return rc;
 	}
 
 	/*
@@ -3475,7 +3475,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 		 * Get data from user first.
 		 */
 		if (copy_from_user(&buf, uarg, sizeof(struct digi_getbuffer))) {
-			return (-EFAULT);
+			return -EFAULT;
 		}
 
 		DGNC_LOCK(ch->ch_lock, lock_flags);
@@ -3521,9 +3521,9 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
 
 		if (copy_to_user(uarg, &buf, sizeof(struct digi_getbuffer))) {
-			return (-EFAULT);
+			return -EFAULT;
 		}
-		return(0);
+		return 0;
 	}
 	default:
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
@@ -3532,7 +3532,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 		DPR_IOCTL(("dgnc_tty_ioctl end - cmd %s (%x), arg %lx\n",
 			dgnc_ioctl_name(cmd), cmd, arg));
 
-		return(-ENOIOCTLCMD);
+		return -ENOIOCTLCMD;
 	}
 
 	DGNC_UNLOCK(ch->ch_lock, lock_flags);
@@ -3540,5 +3540,5 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 	DPR_IOCTL(("dgnc_tty_ioctl end - cmd %s (%x), arg %lx\n",
 		dgnc_ioctl_name(cmd), cmd, arg));
 
-	return(0);
+	return 0;
 }
-- 
cgit 


From 4d2420b4615fcbe1141e26e90e20beb505ed01c2 Mon Sep 17 00:00:00 2001
From: Mark Einon <mark.einon@gmail.com>
Date: Wed, 11 Sep 2013 14:14:43 +0100
Subject: staging: et131x: Remove unused spinlock

phy_lock is no longer used in any useful code, it's all been moved into
a phy_device. Remove the lock definition and init.

Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/et131x/et131x.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/staging/et131x/et131x.c b/drivers/staging/et131x/et131x.c
index f73e58f5ef8d..4c1eade105ad 100644
--- a/drivers/staging/et131x/et131x.c
+++ b/drivers/staging/et131x/et131x.c
@@ -496,8 +496,6 @@ struct et131x_adapter {
 	spinlock_t rcv_pend_lock;
 	spinlock_t fbr_lock;
 
-	spinlock_t phy_lock;
-
 	/* Packet Filter and look ahead size */
 	u32 packet_filter;
 
@@ -3928,7 +3926,6 @@ static struct et131x_adapter *et131x_adapter_init(struct net_device *netdev,
 	spin_lock_init(&adapter->rcv_lock);
 	spin_lock_init(&adapter->rcv_pend_lock);
 	spin_lock_init(&adapter->fbr_lock);
-	spin_lock_init(&adapter->phy_lock);
 
 	adapter->registry_jumbo_packet = 1514;	/* 1514-9216 */
 
-- 
cgit 


From e0349d5bac22b344d1f3cf3fe127828b79177a15 Mon Sep 17 00:00:00 2001
From: Mark Einon <mark.einon@gmail.com>
Date: Wed, 11 Sep 2013 14:14:44 +0100
Subject: staging: et131x: Remove unused rcv_pend_lock spinlock

The rcv_pend_lock spinlock isn't used anymore. remove it.

Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/et131x/Module.symvers | 0
 drivers/staging/et131x/et131x.c       | 2 --
 2 files changed, 2 deletions(-)
 create mode 100644 drivers/staging/et131x/Module.symvers

diff --git a/drivers/staging/et131x/Module.symvers b/drivers/staging/et131x/Module.symvers
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/drivers/staging/et131x/et131x.c b/drivers/staging/et131x/et131x.c
index 4c1eade105ad..a8f7cd774036 100644
--- a/drivers/staging/et131x/et131x.c
+++ b/drivers/staging/et131x/et131x.c
@@ -493,7 +493,6 @@ struct et131x_adapter {
 	spinlock_t send_hw_lock;
 
 	spinlock_t rcv_lock;
-	spinlock_t rcv_pend_lock;
 	spinlock_t fbr_lock;
 
 	/* Packet Filter and look ahead size */
@@ -3924,7 +3923,6 @@ static struct et131x_adapter *et131x_adapter_init(struct net_device *netdev,
 	spin_lock_init(&adapter->tcb_ready_qlock);
 	spin_lock_init(&adapter->send_hw_lock);
 	spin_lock_init(&adapter->rcv_lock);
-	spin_lock_init(&adapter->rcv_pend_lock);
 	spin_lock_init(&adapter->fbr_lock);
 
 	adapter->registry_jumbo_packet = 1514;	/* 1514-9216 */
-- 
cgit 


From 0cdc6ee80d4f0a56fffd259d69966c3b76a09c7e Mon Sep 17 00:00:00 2001
From: Mark Einon <mark.einon@gmail.com>
Date: Wed, 11 Sep 2013 14:14:45 +0100
Subject: staging: et131x: Removing some unecessary braces

Remove braces from a few single line if statements.

Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/et131x/et131x.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/et131x/et131x.c b/drivers/staging/et131x/et131x.c
index a8f7cd774036..7cd3d3470758 100644
--- a/drivers/staging/et131x/et131x.c
+++ b/drivers/staging/et131x/et131x.c
@@ -2774,10 +2774,9 @@ static void et131x_handle_recv_interrupt(struct et131x_adapter *adapter)
 		adapter->net_stats.rx_packets++;
 
 		/* Set the status on the packet, either resources or success */
-		if (adapter->rx_ring.num_ready_recv < RFD_LOW_WATER_MARK) {
-			dev_warn(&adapter->pdev->dev,
-				    "RFD's are running out\n");
-		}
+		if (adapter->rx_ring.num_ready_recv < RFD_LOW_WATER_MARK)
+			dev_warn(&adapter->pdev->dev, "RFD's are running out\n");
+
 		count++;
 	}
 
@@ -3097,11 +3096,10 @@ static int send_packet(struct sk_buff *skb, struct et131x_adapter *adapter)
 		shbufva = (u16 *) skb->data;
 
 		if ((shbufva[0] == 0xffff) &&
-		    (shbufva[1] == 0xffff) && (shbufva[2] == 0xffff)) {
+		    (shbufva[1] == 0xffff) && (shbufva[2] == 0xffff))
 			tcb->flags |= FMP_DEST_BROAD;
-		} else if ((shbufva[0] & 0x3) == 0x0001) {
+		else if ((shbufva[0] & 0x3) == 0x0001)
 			tcb->flags |=  FMP_DEST_MULTI;
-		}
 	}
 
 	tcb->next = NULL;
-- 
cgit 


From 966630bc79fd16df43e4dc172771371f59d94849 Mon Sep 17 00:00:00 2001
From: Mark Einon <mark.einon@gmail.com>
Date: Wed, 11 Sep 2013 14:14:46 +0100
Subject: staging: et131x: Add some items to the TODO list

Adding some trivial formatting suggestions made by Dan Carpenter to
the TODO.

Signed-off-by: Mark Einon <mark.einon@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/et131x/README | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/et131x/README b/drivers/staging/et131x/README
index 9272a24ae61c..8da96a6d2c92 100644
--- a/drivers/staging/et131x/README
+++ b/drivers/staging/et131x/README
@@ -11,7 +11,12 @@ TODO:
 	- Look at reducing the number of spinlocks
 	- Simplify code in nic_rx_pkts(), when determining multicast_pkts_rcvd
 	- Implement NAPI support
-	- in et131x_tx(), don't return NETDEV_TX_BUSY, just drop the packet with	  kfree_skb().
+	- In et131x_tx(), don't return NETDEV_TX_BUSY, just drop the packet with kfree_skb().
+	- Reduce the number of split lines by careful consideration of variable names etc.
+	- Do this in et131x.c:
+                struct fbr_lookup *fbr;
+                fbr = rx_local->fbr[id];
+	  Then replace all the instances of "rx_local->fbr[id]" with fbr.
 
 Please send patches to:
 	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-- 
cgit 


From 51f085a3bcad5ee6cb62ba8ae35fa5899265a483 Mon Sep 17 00:00:00 2001
From: Avinash Kumar <avi.kp.137@gmail.com>
Date: Thu, 5 Sep 2013 23:02:16 +0530
Subject: staging: bcm: InterfaceMisc.c: fixed styling issue in casting
 (foo*)->(foo *)

fixed styling issue in pointer typecast.

Signed-off-by: Avinash Kumar <avi.kp.137@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/bcm/InterfaceMisc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/bcm/InterfaceMisc.c b/drivers/staging/bcm/InterfaceMisc.c
index afca010f9db5..d9fa2bb03e11 100644
--- a/drivers/staging/bcm/InterfaceMisc.c
+++ b/drivers/staging/bcm/InterfaceMisc.c
@@ -104,7 +104,7 @@ int BcmRDM(void *arg,
 	void *buff,
 	int len)
 {
-	return InterfaceRDM((struct bcm_interface_adapter*)arg, addr, buff, len);
+	return InterfaceRDM((struct bcm_interface_adapter *)arg, addr, buff, len);
 }
 
 int BcmWRM(void *arg,
-- 
cgit 


From ecdca554952279394fc511e9a740263edc2df2b2 Mon Sep 17 00:00:00 2001
From: Faris de Haan <farisdehaan@gmail.com>
Date: Mon, 9 Sep 2013 17:34:44 +0200
Subject: Staging: rtl8188eu: checkpatch.pl warnings removed

Fixed some of the coding style issues reported by checkpatch.pl

Signed-off-by: Faris de Haan <farisdehaan@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/core/rtw_sta_mgt.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_sta_mgt.c b/drivers/staging/rtl8188eu/core/rtw_sta_mgt.c
index c2977be92fb1..cd3c9a7c3044 100644
--- a/drivers/staging/rtl8188eu/core/rtw_sta_mgt.c
+++ b/drivers/staging/rtl8188eu/core/rtw_sta_mgt.c
@@ -267,9 +267,8 @@ _func_enter_;
 
 		rtw_mfree_sta_priv_lock(pstapriv);
 
-		if (pstapriv->pallocated_stainfo_buf) {
+		if (pstapriv->pallocated_stainfo_buf)
 			rtw_vmfree(pstapriv->pallocated_stainfo_buf, sizeof(struct sta_info)*NUM_STA+4);
-		}
 	}
 
 _func_exit_;
@@ -315,7 +314,7 @@ _func_enter_;
 
 		rtw_list_insert_tail(&psta->hash_list, phash_list);
 
-		pstapriv->asoc_sta_count++ ;
+		pstapriv->asoc_sta_count++;
 
 		_exit_critical_bh(&(pstapriv->sta_hash_lock), &irql2);
 
@@ -419,7 +418,7 @@ _func_enter_;
 	_cancel_timer_ex(&psta->addba_retry_timer);
 
 	/* for A-MPDU Rx reordering buffer control, cancel reordering_ctrl_timer */
-	for (i = 0; i < 16 ; i++) {
+	for (i = 0; i < 16; i++) {
 		unsigned long irql;
 		struct list_head *phead, *plist;
 		union recv_frame *prframe;
-- 
cgit 


From 1bab69ff97ab398edb43538a11cb752bec02c617 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 14:17:32 +0900
Subject: staging: dgrp: Remove casting the return value which is a void
 pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgrp/dgrp_sysfs.c | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/staging/dgrp/dgrp_sysfs.c b/drivers/staging/dgrp/dgrp_sysfs.c
index 8cee9c8bc38b..9a18a2c9e73b 100644
--- a/drivers/staging/dgrp/dgrp_sysfs.c
+++ b/drivers/staging/dgrp/dgrp_sysfs.c
@@ -157,7 +157,7 @@ static ssize_t dgrp_node_state_show(struct device *c,
 
 	if (!c)
 		return 0;
-	nd = (struct nd_struct *) dev_get_drvdata(c);
+	nd = dev_get_drvdata(c);
 	if (!nd)
 		return 0;
 
@@ -174,7 +174,7 @@ static ssize_t dgrp_node_description_show(struct device *c,
 
 	if (!c)
 		return 0;
-	nd = (struct nd_struct *) dev_get_drvdata(c);
+	nd = dev_get_drvdata(c);
 	if (!nd)
 		return 0;
 
@@ -192,7 +192,7 @@ static ssize_t dgrp_node_hw_version_show(struct device *c,
 
 	if (!c)
 		return 0;
-	nd = (struct nd_struct *) dev_get_drvdata(c);
+	nd = dev_get_drvdata(c);
 	if (!nd)
 		return 0;
 
@@ -212,7 +212,7 @@ static ssize_t dgrp_node_hw_id_show(struct device *c,
 
 	if (!c)
 		return 0;
-	nd = (struct nd_struct *) dev_get_drvdata(c);
+	nd = dev_get_drvdata(c);
 	if (!nd)
 		return 0;
 
@@ -232,7 +232,7 @@ static ssize_t dgrp_node_sw_version_show(struct device *c,
 	if (!c)
 		return 0;
 
-	nd = (struct nd_struct *) dev_get_drvdata(c);
+	nd = dev_get_drvdata(c);
 	if (!nd)
 		return 0;
 
@@ -311,7 +311,7 @@ static ssize_t dgrp_tty_state_show(struct device *d,
 
 	if (!d)
 		return 0;
-	un = (struct un_struct *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un)
 		return 0;
 
@@ -328,7 +328,7 @@ static ssize_t dgrp_tty_baud_show(struct device *d,
 
 	if (!d)
 		return 0;
-	un = (struct un_struct *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un)
 		return 0;
 	ch = un->un_ch;
@@ -348,7 +348,7 @@ static ssize_t dgrp_tty_msignals_show(struct device *d,
 
 	if (!d)
 		return 0;
-	un = (struct un_struct *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un)
 		return 0;
 	ch = un->un_ch;
@@ -377,7 +377,7 @@ static ssize_t dgrp_tty_iflag_show(struct device *d,
 
 	if (!d)
 		return 0;
-	un = (struct un_struct *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un)
 		return 0;
 	ch = un->un_ch;
@@ -396,7 +396,7 @@ static ssize_t dgrp_tty_cflag_show(struct device *d,
 
 	if (!d)
 		return 0;
-	un = (struct un_struct *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un)
 		return 0;
 	ch = un->un_ch;
@@ -415,7 +415,7 @@ static ssize_t dgrp_tty_oflag_show(struct device *d,
 
 	if (!d)
 		return 0;
-	un = (struct un_struct *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un)
 		return 0;
 	ch = un->un_ch;
@@ -434,7 +434,7 @@ static ssize_t dgrp_tty_digi_flag_show(struct device *d,
 
 	if (!d)
 		return 0;
-	un = (struct un_struct *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un)
 		return 0;
 	ch = un->un_ch;
@@ -453,7 +453,7 @@ static ssize_t dgrp_tty_rxcount_show(struct device *d,
 
 	if (!d)
 		return 0;
-	un = (struct un_struct *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un)
 		return 0;
 	ch = un->un_ch;
@@ -472,7 +472,7 @@ static ssize_t dgrp_tty_txcount_show(struct device *d,
 
 	if (!d)
 		return 0;
-	un = (struct un_struct *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un)
 		return 0;
 	ch = un->un_ch;
@@ -493,7 +493,7 @@ static ssize_t dgrp_tty_name_show(struct device *d,
 
 	if (!d)
 		return 0;
-	un = (struct un_struct *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un)
 		return 0;
 	ch = un->un_ch;
-- 
cgit 


From e4309b5dd529b69e904224470813dd1e92b03c69 Mon Sep 17 00:00:00 2001
From: Faris de Haan <farisdehaan@gmail.com>
Date: Tue, 10 Sep 2013 10:38:23 +0200
Subject: Staging: rtl8188eu: rtw_wlan_util.c: Fixed checkpatch.pl warnings.

Fixed a few of the coding style issues reported by checkpatch.pl

Signed-off-by: Faris de Haan <farisdehaan@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/core/rtw_wlan_util.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_wlan_util.c b/drivers/staging/rtl8188eu/core/rtw_wlan_util.c
index 013ea487e7ac..e7fd751f4f01 100644
--- a/drivers/staging/rtl8188eu/core/rtw_wlan_util.c
+++ b/drivers/staging/rtl8188eu/core/rtw_wlan_util.c
@@ -80,7 +80,7 @@ int cckratesonly_included(unsigned char *rate, int ratelen)
 	for (i = 0; i < ratelen; i++) {
 		if  ((((rate[i]) & 0x7f) != 2) && (((rate[i]) & 0x7f) != 4) &&
 			   (((rate[i]) & 0x7f) != 11)  && (((rate[i]) & 0x7f) != 22))
-		return false;
+			return false;
 	}
 
 	return true;
@@ -766,7 +766,7 @@ void HT_caps_handler(struct adapter *padapter, struct ndis_802_11_var_ie *pIE)
 
 	for (i = 0; i < (pIE->Length); i++) {
 		if (i != 2) {
-			/* 	Got the endian issue here. */
+			/*	Got the endian issue here. */
 			pmlmeinfo->HT_caps.u.HT_cap[i] &= (pIE->data[i]);
 		} else {
 			/* modify from  fw by Thomas 2010/11/17 */
@@ -1186,7 +1186,7 @@ unsigned int should_forbid_n_rate(struct adapter *padapter)
 			case _RSN_IE_2_:
 				if  ((_rtw_memcmp((pIE->data + 8), RSN_CIPHER_SUITE_CCMP, 4))  ||
 				       (_rtw_memcmp((pIE->data + 12), RSN_CIPHER_SUITE_CCMP, 4)))
-				return false;
+					return false;
 			default:
 				break;
 			}
@@ -1368,21 +1368,21 @@ void update_tx_basic_rate(struct adapter *padapter, u8 wirelessmode)
 #ifdef CONFIG_88EU_P2P
 	struct wifidirect_info *pwdinfo = &padapter->wdinfo;
 
-	/* 	Added by Albert 2011/03/22 */
-	/* 	In the P2P mode, the driver should not support the b mode. */
-	/* 	So, the Tx packet shouldn't use the CCK rate */
+	/*	Added by Albert 2011/03/22 */
+	/*	In the P2P mode, the driver should not support the b mode. */
+	/*	So, the Tx packet shouldn't use the CCK rate */
 	if (!rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE))
 		return;
 #endif /* CONFIG_88EU_P2P */
 	_rtw_memset(supported_rates, 0, NDIS_802_11_LENGTH_RATES_EX);
 
-	if ((wirelessmode & WIRELESS_11B) && (wirelessmode == WIRELESS_11B)) {
+	if ((wirelessmode & WIRELESS_11B) && (wirelessmode == WIRELESS_11B))
 		memcpy(supported_rates, rtw_basic_rate_cck, 4);
-	} else if (wirelessmode & WIRELESS_11B) {
+	else if (wirelessmode & WIRELESS_11B)
 		memcpy(supported_rates, rtw_basic_rate_mix, 7);
-	} else {
+	else
 		memcpy(supported_rates, rtw_basic_rate_ofdm, 3);
-	}
+
 
 	if (wirelessmode & WIRELESS_11B)
 		update_mgnt_tx_rate(padapter, IEEE80211_CCK_RATE_1MB);
@@ -1435,7 +1435,7 @@ unsigned char check_assoc_AP(u8 *pframe, uint len)
 				DBG_88E("link to Airgo Cap\n");
 				return HT_IOT_PEER_AIRGO;
 			} else if (_rtw_memcmp(pIE->data, EPIGRAM_OUI, 3)) {
-				 epigram_vendor_flag = 1;
+				epigram_vendor_flag = 1;
 				if (ralink_vendor_flag) {
 					DBG_88E("link to Tenda W311R AP\n");
 					 return HT_IOT_PEER_TENDA;
-- 
cgit 


From fe8c768431c7f6c7e58fe3c676f216b6f3809964 Mon Sep 17 00:00:00 2001
From: Aldo Iljazi <neonsync1@gmail.com>
Date: Tue, 10 Sep 2013 18:44:39 +0300
Subject: Staging: bcm: nvm: fixed space prohibition

Fixed space prohibition before semicolon, particularly:

nvm.c:106: WARNING: space prohibited before semicolon
nvm.c:1098: WARNING: space prohibited before semicolon
nvm.c:1279: WARNING: space prohibited before semicolon
nvm.c:2834: WARNING: space prohibited before semicolon
nvm.c:3361: WARNING: space prohibited before semicolon
nvm.c:4453: WARNING: space prohibited before semicolon

Signed-off-by: Aldo Iljazi <neonsync1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/bcm/nvm.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/bcm/nvm.c b/drivers/staging/bcm/nvm.c
index 91a5715964b9..1f5b62b4b5a1 100644
--- a/drivers/staging/bcm/nvm.c
+++ b/drivers/staging/bcm/nvm.c
@@ -103,7 +103,7 @@ static UCHAR ReadEEPROMStatusRegister(struct bcm_mini_adapter *Adapter)
 		}
 		if (!(dwRetries%RETRIES_PER_DELAY))
 			udelay(1000);
-		uiStatus = 0 ;
+		uiStatus = 0;
 	}
 	return uiData;
 } /* ReadEEPROMStatusRegister */
@@ -1095,7 +1095,7 @@ static int BeceemFlashBulkWrite(struct bcm_mini_adapter *Adapter,
 				goto BeceemFlashBulkWrite_EXIT;
 			}
 			uiTemp = uiTemp - 1;
-			index = index + 1 ;
+			index = index + 1;
 		}
 	}
 	Adapter->SelectedChip = RESET_CHIP_SELECT;
@@ -1276,7 +1276,7 @@ static int BeceemFlashBulkWriteStatus(struct bcm_mini_adapter *Adapter,
 				goto BeceemFlashBulkWriteStatus_EXIT;
 			}
 			uiTemp = uiTemp - 1;
-			index = index + 1 ;
+			index = index + 1;
 		}
 	}
 
@@ -2831,7 +2831,7 @@ int BcmGetSectionValEndOffset(struct bcm_mini_adapter *Adapter, enum bcm_flash2x
 		SectEndOffset = INVALID_OFFSET;
 	}
 
-	return SectEndOffset ;
+	return SectEndOffset;
 }
 
 /*
@@ -3358,7 +3358,7 @@ int BcmSetActiveSection(struct bcm_mini_adapter *Adapter, enum bcm_flash2x_secti
 	/* struct bcm_dsd_header sDSD = {0};
 	 * struct bcm_iso_header sISO = {0};
 	 */
-	int HighestPriDSD = 0 ;
+	int HighestPriDSD = 0;
 	int HighestPriISO = 0;
 
 	Status = IsSectionWritable(Adapter, eFlash2xSectVal);
@@ -4450,7 +4450,7 @@ int WriteToFlashWithoutSectorErase(struct bcm_mini_adapter *Adapter,
 		BcmDoChipSelect(Adapter, uiOffset);
 		uiPartOffset = (uiOffset & (FLASH_PART_SIZE - 1)) + GetFlashBaseAddr(Adapter);
 
-		for (i = 0 ; i < uiNumBytes; i += Adapter->ulFlashWriteSize) {
+		for (i = 0; i < uiNumBytes; i += Adapter->ulFlashWriteSize) {
 			if (Adapter->ulFlashWriteSize == BYTE_WRITE_SUPPORT)
 				Status = flashByteWrite(Adapter, uiPartOffset, pcBuff);
 			else
-- 
cgit 


From 9502e2b4ddc082bced045de07d99f4595a266e90 Mon Sep 17 00:00:00 2001
From: Jon Bernard <jbernard@tuxion.com>
Date: Tue, 10 Sep 2013 18:00:01 -0400
Subject: Staging: fwserial: wrap a line that exceeds 80 characters

This is a patch to fwserial.c that wraps a line which previously exceeded the 80
character limit warning found by checkpatch.pl.  This driver is now warning and
error free, according to checkpatch.pl

Signed-off-by: Jon Bernard <jbernard@tuxion.com>
Reviewed-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/fwserial/fwserial.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/fwserial/fwserial.c b/drivers/staging/fwserial/fwserial.c
index ff92f34e4746..62df009e5ac7 100644
--- a/drivers/staging/fwserial/fwserial.c
+++ b/drivers/staging/fwserial/fwserial.c
@@ -2394,7 +2394,8 @@ static int fwserial_create(struct fw_unit *unit)
 
 	list_del_rcu(&serial->list);
 	if (create_loop_dev)
-		tty_unregister_device(fwloop_driver, loop_idx(serial->ports[j]));
+		tty_unregister_device(fwloop_driver,
+				      loop_idx(serial->ports[j]));
 unregister_ttys:
 	for (--j; j >= 0; --j)
 		tty_unregister_device(fwtty_driver, serial->ports[j]->index);
-- 
cgit 


From 263b8bb9106a574f066d7a949aaee29a21c6b99f Mon Sep 17 00:00:00 2001
From: Avinash Kumar <avi.kp.137@gmail.com>
Date: Fri, 6 Sep 2013 22:21:49 +0530
Subject: staging: wlan-ng: hfa384x_usb.c: replaced printk() debugs with
 netdev_warn()/netdev_err()

replaced the printk debug lines with respective netdev_warn()/netdev_err()

Signed-off-by: Avinash kumar <avi.kp.137@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/wlan-ng/hfa384x_usb.c | 90 +++++++++++++++++------------------
 1 file changed, 45 insertions(+), 45 deletions(-)

diff --git a/drivers/staging/wlan-ng/hfa384x_usb.c b/drivers/staging/wlan-ng/hfa384x_usb.c
index c1a8cb625154..5b8b094c8726 100644
--- a/drivers/staging/wlan-ng/hfa384x_usb.c
+++ b/drivers/staging/wlan-ng/hfa384x_usb.c
@@ -355,7 +355,7 @@ static int submit_rx_urb(hfa384x_t *hw, gfp_t memflags)
 
 		/* Check whether we need to reset the RX pipe */
 		if (result == -EPIPE) {
-			printk(KERN_WARNING
+			netdev_warn(hw->wlandev->netdev,
 			       "%s rx pipe stalled: requesting reset\n",
 			       hw->wlandev->netdev->name);
 			if (!test_and_set_bit(WORK_RX_HALT, &hw->usb_flags))
@@ -405,7 +405,7 @@ static int submit_tx_urb(hfa384x_t *hw, struct urb *tx_urb, gfp_t memflags)
 
 			/* Test whether we need to reset the TX pipe */
 			if (result == -EPIPE) {
-				printk(KERN_WARNING
+				netdev_warn(hw->wlandev->netdev,
 				       "%s tx pipe stalled: requesting reset\n",
 				       netdev->name);
 				set_bit(WORK_TX_HALT, &hw->usb_flags);
@@ -454,11 +454,11 @@ static void hfa384x_usb_defer(struct work_struct *data)
 
 		ret = usb_clear_halt(hw->usb, hw->endp_in);
 		if (ret != 0) {
-			printk(KERN_ERR
+			netdev_err(hw->wlandev->netdev,
 			       "Failed to clear rx pipe for %s: err=%d\n",
 			       netdev->name, ret);
 		} else {
-			printk(KERN_INFO "%s rx pipe reset complete.\n",
+			netdev_info(hw->wlandev->netdev, "%s rx pipe reset complete.\n",
 			       netdev->name);
 			clear_bit(WORK_RX_HALT, &hw->usb_flags);
 			set_bit(WORK_RX_RESUME, &hw->usb_flags);
@@ -471,7 +471,7 @@ static void hfa384x_usb_defer(struct work_struct *data)
 
 		ret = submit_rx_urb(hw, GFP_KERNEL);
 		if (ret != 0) {
-			printk(KERN_ERR
+			netdev_err(hw->wlandev->netdev,
 			       "Failed to resume %s rx pipe.\n", netdev->name);
 		} else {
 			clear_bit(WORK_RX_RESUME, &hw->usb_flags);
@@ -485,11 +485,11 @@ static void hfa384x_usb_defer(struct work_struct *data)
 		usb_kill_urb(&hw->tx_urb);
 		ret = usb_clear_halt(hw->usb, hw->endp_out);
 		if (ret != 0) {
-			printk(KERN_ERR
+			netdev_err(hw->wlandev->netdev,
 			       "Failed to clear tx pipe for %s: err=%d\n",
 			       netdev->name, ret);
 		} else {
-			printk(KERN_INFO "%s tx pipe reset complete.\n",
+			netdev_info(hw->wlandev->netdev, "%s tx pipe reset complete.\n",
 			       netdev->name);
 			clear_bit(WORK_TX_HALT, &hw->usb_flags);
 			set_bit(WORK_TX_RESUME, &hw->usb_flags);
@@ -1211,7 +1211,7 @@ int hfa384x_corereset(hfa384x_t *hw, int holdtime, int settletime, int genesis)
 
 	result = usb_reset_device(hw->usb);
 	if (result < 0) {
-		printk(KERN_ERR "usb_reset_device() failed, result=%d.\n",
+		netdev_err(hw->wlandev->netdev, "usb_reset_device() failed, result=%d.\n",
 		       result);
 	}
 
@@ -1311,7 +1311,7 @@ cleanup:
 		if (ctlx->state == CTLX_COMPLETE) {
 			result = completor->complete(completor);
 		} else {
-			printk(KERN_WARNING "CTLX[%d] error: state(%s)\n",
+			netdev_warn(hw->wlandev->netdev, "CTLX[%d] error: state(%s)\n",
 			       le16_to_cpu(ctlx->outbuf.type),
 			       ctlxstr(ctlx->state));
 			result = -EIO;
@@ -2018,7 +2018,7 @@ int hfa384x_drvr_flashdl_write(hfa384x_t *hw, u32 daddr, void *buf, u32 len)
 	if (hw->dlstate != HFA384x_DLSTATE_FLASHENABLED)
 		return -EINVAL;
 
-	printk(KERN_INFO "Download %d bytes to flash @0x%06x\n", len, daddr);
+	netdev_info(hw->wlandev->netdev, "Download %d bytes to flash @0x%06x\n", len, daddr);
 
 	/* Convert to flat address for arithmetic */
 	/* NOTE: dlbuffer RID stores the address in AUX format */
@@ -2028,7 +2028,7 @@ int hfa384x_drvr_flashdl_write(hfa384x_t *hw, u32 daddr, void *buf, u32 len)
 		 hw->bufinfo.page, hw->bufinfo.offset, dlbufaddr);
 
 #if 0
-	printk(KERN_WARNING "dlbuf@0x%06lx len=%d to=%d\n", dlbufaddr,
+	netdev_warn(hw->wlandev->netdev, "dlbuf@0x%06lx len=%d to=%d\n", dlbufaddr,
 	       hw->bufinfo.len, hw->dltimeout);
 #endif
 	/* Calculations to determine how many fills of the dlbuffer to do
@@ -2055,14 +2055,14 @@ int hfa384x_drvr_flashdl_write(hfa384x_t *hw, u32 daddr, void *buf, u32 len)
 		burnlo = HFA384x_ADDR_CMD_MKOFF(burndaddr);
 		burnhi = HFA384x_ADDR_CMD_MKPAGE(burndaddr);
 
-		printk(KERN_INFO "Writing %d bytes to flash @0x%06x\n",
+		netdev_info(hw->wlandev->netdev, "Writing %d bytes to flash @0x%06x\n",
 		       burnlen, burndaddr);
 
 		/* Set the download mode */
 		result = hfa384x_cmd_download(hw, HFA384x_PROGMODE_NV,
 					      burnlo, burnhi, burnlen);
 		if (result) {
-			printk(KERN_ERR "download(NV,lo=%x,hi=%x,len=%x) "
+			netdev_err(hw->wlandev->netdev, "download(NV,lo=%x,hi=%x,len=%x) "
 			       "cmd failed, result=%d. Aborting d/l\n",
 			       burnlo, burnhi, burnlen, result);
 			goto exit_proc;
@@ -2094,7 +2094,7 @@ int hfa384x_drvr_flashdl_write(hfa384x_t *hw, u32 daddr, void *buf, u32 len)
 					      HFA384x_PROGMODE_NVWRITE,
 					      0, 0, 0);
 		if (result) {
-			printk(KERN_ERR
+			netdev_err(hw->wlandev->netdev,
 			       "download(NVWRITE,lo=%x,hi=%x,len=%x) "
 			       "cmd failed, result=%d. Aborting d/l\n",
 			       burnlo, burnhi, burnlen, result);
@@ -2279,7 +2279,7 @@ int hfa384x_drvr_ramdl_enable(hfa384x_t *hw, u32 exeaddr)
 	/* Check that a port isn't active */
 	for (i = 0; i < HFA384x_PORTID_MAX; i++) {
 		if (hw->port_enabled[i]) {
-			printk(KERN_ERR
+			netdev_err(hw->wlandev->netdev,
 			       "Can't download with a macport enabled.\n");
 			return -EINVAL;
 		}
@@ -2287,7 +2287,7 @@ int hfa384x_drvr_ramdl_enable(hfa384x_t *hw, u32 exeaddr)
 
 	/* Check that we're not already in a download state */
 	if (hw->dlstate != HFA384x_DLSTATE_DISABLED) {
-		printk(KERN_ERR "Download state not disabled.\n");
+		netdev_err(hw->wlandev->netdev, "Download state not disabled.\n");
 		return -EINVAL;
 	}
 
@@ -2352,7 +2352,7 @@ int hfa384x_drvr_ramdl_write(hfa384x_t *hw, u32 daddr, void *buf, u32 len)
 	if (hw->dlstate != HFA384x_DLSTATE_RAMENABLED)
 		return -EINVAL;
 
-	printk(KERN_INFO "Writing %d bytes to ram @0x%06x\n", len, daddr);
+	netdev_info(hw->wlandev->netdev, "Writing %d bytes to ram @0x%06x\n", len, daddr);
 
 	/* How many dowmem calls?  */
 	nwrites = len / HFA384x_USB_RWMEM_MAXLEN;
@@ -2449,7 +2449,7 @@ int hfa384x_drvr_readpda(hfa384x_t *hw, void *buf, unsigned int len)
 						len);
 
 		if (result) {
-			printk(KERN_WARNING
+			netdev_warn(hw->wlandev->netdev,
 			       "Read from index %zd failed, continuing\n", i);
 			continue;
 		}
@@ -2462,13 +2462,13 @@ int hfa384x_drvr_readpda(hfa384x_t *hw, void *buf, unsigned int len)
 			pdrcode = le16_to_cpu(pda[currpdr + 1]);
 			/* Test the record length */
 			if (pdrlen > HFA384x_PDR_LEN_MAX || pdrlen == 0) {
-				printk(KERN_ERR "pdrlen invalid=%d\n", pdrlen);
+				netdev_err(hw->wlandev->netdev, "pdrlen invalid=%d\n", pdrlen);
 				pdaok = 0;
 				break;
 			}
 			/* Test the code */
 			if (!hfa384x_isgood_pdrcode(pdrcode)) {
-				printk(KERN_ERR "pdrcode invalid=%d\n",
+				netdev_err(hw->wlandev->netdev, "pdrcode invalid=%d\n",
 				       pdrcode);
 				pdaok = 0;
 				break;
@@ -2484,7 +2484,7 @@ int hfa384x_drvr_readpda(hfa384x_t *hw, void *buf, unsigned int len)
 			}
 		}
 		if (pdaok) {
-			printk(KERN_INFO
+			netdev_info(hw->wlandev->netdev,
 			       "PDA Read from 0x%08x in %s space.\n",
 			       pdaloc[i].cardaddr,
 			       pdaloc[i].auxctl == 0 ? "EXTDS" :
@@ -2564,20 +2564,20 @@ int hfa384x_drvr_start(hfa384x_t *hw)
 	result =
 	    usb_get_status(hw->usb, USB_RECIP_ENDPOINT, hw->endp_in, &status);
 	if (result < 0) {
-		printk(KERN_ERR "Cannot get bulk in endpoint status.\n");
+		netdev_err(hw->wlandev->netdev, "Cannot get bulk in endpoint status.\n");
 		goto done;
 	}
 	if ((status == 1) && usb_clear_halt(hw->usb, hw->endp_in))
-		printk(KERN_ERR "Failed to reset bulk in endpoint.\n");
+		netdev_err(hw->wlandev->netdev, "Failed to reset bulk in endpoint.\n");
 
 	result =
 	    usb_get_status(hw->usb, USB_RECIP_ENDPOINT, hw->endp_out, &status);
 	if (result < 0) {
-		printk(KERN_ERR "Cannot get bulk out endpoint status.\n");
+		netdev_err(hw->wlandev->netdev, "Cannot get bulk out endpoint status.\n");
 		goto done;
 	}
 	if ((status == 1) && usb_clear_halt(hw->usb, hw->endp_out))
-		printk(KERN_ERR "Failed to reset bulk out endpoint.\n");
+		netdev_err(hw->wlandev->netdev, "Failed to reset bulk out endpoint.\n");
 
 	/* Synchronous unlink, in case we're trying to restart the driver */
 	usb_kill_urb(&hw->rx_urb);
@@ -2585,7 +2585,7 @@ int hfa384x_drvr_start(hfa384x_t *hw)
 	/* Post the IN urb */
 	result = submit_rx_urb(hw, GFP_KERNEL);
 	if (result != 0) {
-		printk(KERN_ERR
+		netdev_err(hw->wlandev->netdev,
 		       "Fatal, failed to submit RX URB, result=%d\n", result);
 		goto done;
 	}
@@ -2605,7 +2605,7 @@ int hfa384x_drvr_start(hfa384x_t *hw)
 	result = result2 = hfa384x_cmd_initialize(hw);
 	if (result1 != 0) {
 		if (result2 != 0) {
-			printk(KERN_ERR
+			netdev_err(hw->wlandev->netdev,
 				"cmd_initialize() failed on two attempts, results %d and %d\n",
 				result1, result2);
 			usb_kill_urb(&hw->rx_urb);
@@ -2616,9 +2616,9 @@ int hfa384x_drvr_start(hfa384x_t *hw)
 			pr_debug("but second attempt succeeded. All should be ok\n");
 		}
 	} else if (result2 != 0) {
-		printk(KERN_WARNING "First cmd_initialize() succeeded, but second attempt failed (result=%d)\n",
+		netdev_warn(hw->wlandev->netdev, "First cmd_initialize() succeeded, but second attempt failed (result=%d)\n",
 			result2);
-		printk(KERN_WARNING
+		netdev_warn(hw->wlandev->netdev,
 		       "Most likely the card will be functional\n");
 		goto done;
 	}
@@ -2709,7 +2709,7 @@ int hfa384x_drvr_txframe(hfa384x_t *hw, struct sk_buff *skb,
 	char *ptr;
 
 	if (hw->tx_urb.status == -EINPROGRESS) {
-		printk(KERN_WARNING "TX URB already in use\n");
+		netdev_warn(hw->wlandev->netdev, "TX URB already in use\n");
 		result = 3;
 		goto exit;
 	}
@@ -2784,7 +2784,7 @@ int hfa384x_drvr_txframe(hfa384x_t *hw, struct sk_buff *skb,
 	result = 1;
 	ret = submit_tx_urb(hw, &hw->tx_urb, GFP_ATOMIC);
 	if (ret != 0) {
-		printk(KERN_ERR "submit_tx_urb() failed, error=%d\n", ret);
+		netdev_err(hw->wlandev->netdev, "submit_tx_urb() failed, error=%d\n", ret);
 		result = 3;
 	}
 
@@ -3009,7 +3009,7 @@ static void unlocked_usbctlx_complete(hfa384x_t *hw, hfa384x_usbctlx_t *ctlx)
 		break;
 
 	default:
-		printk(KERN_ERR "CTLX[%d] not in a terminating state(%s)\n",
+		netdev_err(hw->wlandev->netdev, "CTLX[%d] not in a terminating state(%s)\n",
 		       le16_to_cpu(ctlx->outbuf.type), ctlxstr(ctlx->state));
 		break;
 	}			/* switch */
@@ -3091,7 +3091,7 @@ static void hfa384x_usbctlxq_run(hfa384x_t *hw)
 			 * this CTLX back in the "pending" queue
 			 * and schedule a reset ...
 			 */
-			printk(KERN_WARNING
+			netdev_warn(hw->wlandev->netdev,
 			       "%s tx pipe stalled: requesting reset\n",
 			       hw->wlandev->netdev->name);
 			list_move(&head->list, &hw->ctlxq.pending);
@@ -3101,12 +3101,12 @@ static void hfa384x_usbctlxq_run(hfa384x_t *hw)
 		}
 
 		if (result == -ESHUTDOWN) {
-			printk(KERN_WARNING "%s urb shutdown!\n",
+			netdev_warn(hw->wlandev->netdev, "%s urb shutdown!\n",
 			       hw->wlandev->netdev->name);
 			break;
 		}
 
-		printk(KERN_ERR "Failed to submit CTLX[%d]: error=%d\n",
+		netdev_err(hw->wlandev->netdev, "Failed to submit CTLX[%d]: error=%d\n",
 		       le16_to_cpu(head->outbuf.type), result);
 		unlocked_usbctlx_complete(hw, head);
 	}			/* while */
@@ -3173,7 +3173,7 @@ static void hfa384x_usbin_callback(struct urb *urb)
 		break;
 
 	case -EPIPE:
-		printk(KERN_WARNING "%s rx pipe stalled: requesting reset\n",
+		netdev_warn(hw->wlandev->netdev, "%s rx pipe stalled: requesting reset\n",
 		       wlandev->netdev->name);
 		if (!test_and_set_bit(WORK_RX_HALT, &hw->usb_flags))
 			schedule_work(&hw->usb_work);
@@ -3224,7 +3224,7 @@ static void hfa384x_usbin_callback(struct urb *urb)
 		result = submit_rx_urb(hw, GFP_ATOMIC);
 
 		if (result != 0) {
-			printk(KERN_ERR
+			netdev_err(hw->wlandev->netdev,
 			       "Fatal, failed to resubmit rx_urb. error=%d\n",
 			       result);
 		}
@@ -3360,7 +3360,7 @@ retry:
 		 * Check that our message is what we're expecting ...
 		 */
 		if (ctlx->outbuf.type != intype) {
-			printk(KERN_WARNING
+			netdev_warn(hw->wlandev->netdev,
 			       "Expected IN[%d], received IN[%d] - ignored.\n",
 			       le16_to_cpu(ctlx->outbuf.type),
 			       le16_to_cpu(intype));
@@ -3396,7 +3396,7 @@ retry:
 			/*
 			 * Throw this CTLX away ...
 			 */
-			printk(KERN_ERR
+			netdev_err(hw->wlandev->netdev,
 			       "Matched IN URB, CTLX[%d] in invalid state(%s)."
 			       " Discarded.\n",
 			       le16_to_cpu(ctlx->outbuf.type),
@@ -3534,7 +3534,7 @@ static void hfa384x_usbin_rx(wlandevice_t *wlandev, struct sk_buff *skb)
 		break;
 
 	default:
-		printk(KERN_WARNING "Received frame on unsupported port=%d\n",
+		netdev_warn(hw->wlandev->netdev, "Received frame on unsupported port=%d\n",
 		       HFA384x_RXSTATUS_MACPORT_GET(usbin->rxfrm.desc.status));
 		goto done;
 		break;
@@ -3596,7 +3596,7 @@ static void hfa384x_int_rxmonitor(wlandevice_t *wlandev,
 
 	skb = dev_alloc_skb(skblen);
 	if (skb == NULL) {
-		printk(KERN_ERR
+		netdev_err(hw->wlandev->netdev,
 		       "alloc_skb failed trying to allocate %d bytes\n",
 		       skblen);
 		return;
@@ -3714,7 +3714,7 @@ static void hfa384x_usbout_callback(struct urb *urb)
 		case -EPIPE:
 			{
 				hfa384x_t *hw = wlandev->priv;
-				printk(KERN_WARNING
+				netdev_warn(hw->wlandev->netdev,
 				       "%s tx pipe stalled: requesting reset\n",
 				       wlandev->netdev->name);
 				if (!test_and_set_bit
@@ -3747,7 +3747,7 @@ static void hfa384x_usbout_callback(struct urb *urb)
 			break;
 
 		default:
-			printk(KERN_INFO "unknown urb->status=%d\n",
+			netdev_info(wlandev->netdev, "unknown urb->status=%d\n",
 			       urb->status);
 			++(wlandev->linux_stats.tx_errors);
 			break;
@@ -3841,7 +3841,7 @@ retry:
 
 		default:
 			/* This is NOT a valid CTLX "success" state! */
-			printk(KERN_ERR
+			netdev_err(hw->wlandev->netdev,
 				"Illegal CTLX[%d] success state(%s, %d) in OUT URB\n",
 				le16_to_cpu(ctlx->outbuf.type),
 				ctlxstr(ctlx->state), urb->status);
@@ -3851,7 +3851,7 @@ retry:
 		/* If the pipe has stalled then we need to reset it */
 		if ((urb->status == -EPIPE) &&
 		    !test_and_set_bit(WORK_TX_HALT, &hw->usb_flags)) {
-			printk(KERN_WARNING
+			netdev_warn(hw->wlandev->netdev,
 			       "%s tx pipe stalled: requesting reset\n",
 			       hw->wlandev->netdev->name);
 			schedule_work(&hw->usb_work);
-- 
cgit 


From eed88971337309d50396578ae268cfa79feb3ca0 Mon Sep 17 00:00:00 2001
From: Avinash Kumar <avi.kp.137@gmail.com>
Date: Fri, 6 Sep 2013 21:44:51 +0530
Subject: staging: wlan-ng: cfg80211.c: replaced printk() with netdev_warn()

replaced printk functions used for debug messages by respective netdev_warn
netdev_err functions.

Signed-off-by: Avinash Kumar <avi.kp.137@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/wlan-ng/cfg80211.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/wlan-ng/cfg80211.c b/drivers/staging/wlan-ng/cfg80211.c
index f1bce18ea828..237479acc3b4 100644
--- a/drivers/staging/wlan-ng/cfg80211.c
+++ b/drivers/staging/wlan-ng/cfg80211.c
@@ -122,7 +122,7 @@ int prism2_change_virtual_intf(struct wiphy *wiphy,
 		data = 1;
 		break;
 	default:
-		printk(KERN_WARNING "Operation mode: %d not support\n", type);
+		netdev_warn(dev, "Operation mode: %d not support\n", type);
 		return -EOPNOTSUPP;
 	}
 
@@ -352,7 +352,7 @@ int prism2_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
 		return -EBUSY;
 
 	if (wlandev->macmode == WLAN_MACMODE_ESS_AP) {
-		printk(KERN_ERR "Can't scan in AP mode\n");
+		netdev_err(dev, "Can't scan in AP mode\n");
 		return -EOPNOTSUPP;
 	}
 
@@ -510,7 +510,7 @@ int prism2_connect(struct wiphy *wiphy, struct net_device *dev,
 		((sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) && is_wep))
 			msg_join.authtype.data = P80211ENUM_authalg_sharedkey;
 	else
-		printk(KERN_WARNING
+		netdev_warn(dev,
 			"Unhandled authorisation type for connect (%d)\n",
 			sme->auth_type);
 
-- 
cgit 


From 8329419a29d15abebc3aefb57f4c6bfdbded7d89 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sun, 1 Sep 2013 12:15:47 -0700
Subject: Staging: Convert uses of compare_ether_addr to ether_addr_equal

Preliminary to removing compare_ether_addr altogether:

Use the new bool function ether_addr_equal to add
some clarity and reduce the likelihood for misuse
of compare_ether_addr for sorting.

Additionally:

Used is_zero_ether_addr, removed now unused variable
Converted uses of &foo[0] to foo

Done via cocci script: (and a little typing)

$ cat compare_ether_addr.cocci
@@
expression a,b;
@@
-	!compare_ether_addr(a, b)
+	ether_addr_equal(a, b)

@@
expression a,b;
@@
-	compare_ether_addr(a, b)
+	!ether_addr_equal(a, b)

@@
expression a,b;
@@
-	!ether_addr_equal(a, b) == 0
+	ether_addr_equal(a, b)

@@
expression a,b;
@@
-	!ether_addr_equal(a, b) != 0
+	!ether_addr_equal(a, b)

@@
expression a,b;
@@
-	ether_addr_equal(a, b) == 0
+	!ether_addr_equal(a, b)

@@
expression a,b;
@@
-	ether_addr_equal(a, b) != 0
+	ether_addr_equal(a, b)

@@
expression a,b;
@@
-	!!ether_addr_equal(a, b)
+	ether_addr_equal(a, b)

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c | 18 +++++++++---------
 drivers/staging/rtl8192e/rtllib_rx.c           | 13 ++++++-------
 drivers/staging/slicoss/slicoss.c              |  6 +++---
 drivers/staging/vt6655/bssdb.c                 | 11 +++++++----
 drivers/staging/vt6655/dpc.c                   |  7 ++++---
 drivers/staging/vt6655/iwctl.c                 |  6 ++++--
 drivers/staging/vt6655/key.c                   | 10 +++++-----
 drivers/staging/vt6655/wctl.c                  |  8 ++++----
 drivers/staging/vt6655/wmgr.c                  |  3 ++-
 drivers/staging/vt6655/wpactl.c                |  2 +-
 drivers/staging/vt6656/bssdb.c                 | 12 ++++++------
 drivers/staging/vt6656/dpc.c                   | 13 ++++++-------
 drivers/staging/vt6656/iwctl.c                 |  8 ++++----
 drivers/staging/vt6656/key.c                   | 10 +++++-----
 drivers/staging/vt6656/wctl.c                  |  7 +++----
 drivers/staging/vt6656/wmgr.c                  |  4 ++--
 drivers/staging/vt6656/wpactl.c                |  2 +-
 17 files changed, 72 insertions(+), 68 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
index 74fbd70d5838..6616b3a20bc9 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
@@ -1866,15 +1866,15 @@ static void rtl8192_TranslateRxSignalStuff(struct net_device *dev,
 	type = WLAN_FC_GET_TYPE(fc);
 	praddr = hdr->addr1;
 
-	bpacket_match_bssid = ((RTLLIB_FTYPE_CTL != type) &&
-			(!compare_ether_addr(priv->rtllib->
-			current_network.bssid,
-			   (fc & RTLLIB_FCTL_TODS) ? hdr->addr1 :
-			   (fc & RTLLIB_FCTL_FROMDS) ? hdr->addr2 : hdr->addr3))
-		&& (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV));
-	bpacket_toself =  bpacket_match_bssid &&	/* check this */
-			  (!compare_ether_addr(praddr,
-			  priv->rtllib->dev->dev_addr));
+	bpacket_match_bssid =
+		((RTLLIB_FTYPE_CTL != type) &&
+		 ether_addr_equal(priv->rtllib->current_network.bssid,
+				  (fc & RTLLIB_FCTL_TODS) ? hdr->addr1 :
+				  (fc & RTLLIB_FCTL_FROMDS) ? hdr->addr2 :
+				  hdr->addr3) &&
+		 (!pstats->bHwError) && (!pstats->bCRC) && (!pstats->bICV));
+	bpacket_toself = bpacket_match_bssid &&		/* check this */
+			 ether_addr_equal(praddr, priv->rtllib->dev->dev_addr);
 	if (WLAN_FC_GET_FRAMETYPE(fc) == RTLLIB_STYPE_BEACON)
 		bPacketBeacon = true;
 	if (bpacket_match_bssid)
diff --git a/drivers/staging/rtl8192e/rtllib_rx.c b/drivers/staging/rtl8192e/rtllib_rx.c
index 8aeaed5a987d..8ee80c50303a 100644
--- a/drivers/staging/rtl8192e/rtllib_rx.c
+++ b/drivers/staging/rtl8192e/rtllib_rx.c
@@ -957,16 +957,15 @@ static void rtllib_rx_extract_addr(struct rtllib_device *ieee,
 static int rtllib_rx_data_filter(struct rtllib_device *ieee, u16 fc,
 				 u8 *dst, u8 *src, u8 *bssid, u8 *addr2)
 {
-	u8 zero_addr[ETH_ALEN] = {0};
 	u8 type, stype;
 
 	type = WLAN_FC_GET_TYPE(fc);
 	stype = WLAN_FC_GET_STYPE(fc);
 
 	/* Filter frames from different BSS */
-	if (((fc & RTLLIB_FCTL_DSTODS) != RTLLIB_FCTL_DSTODS)
-		&& (compare_ether_addr(ieee->current_network.bssid, bssid) != 0)
-		&& memcmp(ieee->current_network.bssid, zero_addr, ETH_ALEN)) {
+	if (((fc & RTLLIB_FCTL_DSTODS) != RTLLIB_FCTL_DSTODS) &&
+	    !ether_addr_equal(ieee->current_network.bssid, bssid) &&
+	    !is_zero_ether_addr(ieee->current_network.bssid)) {
 		return -1;
 	}
 
@@ -974,8 +973,8 @@ static int rtllib_rx_data_filter(struct rtllib_device *ieee, u16 fc,
 	if (ieee->IntelPromiscuousModeInfo.bPromiscuousOn  &&
 		ieee->IntelPromiscuousModeInfo.bFilterSourceStationFrame) {
 		if ((fc & RTLLIB_FCTL_TODS) && !(fc & RTLLIB_FCTL_FROMDS) &&
-			(compare_ether_addr(dst, ieee->current_network.bssid) != 0) &&
-			(compare_ether_addr(bssid, ieee->current_network.bssid) == 0)) {
+		    !ether_addr_equal(dst, ieee->current_network.bssid) &&
+		    ether_addr_equal(bssid, ieee->current_network.bssid)) {
 			return -1;
 		}
 	}
@@ -1275,7 +1274,7 @@ static int rtllib_rx_InfraAdhoc(struct rtllib_device *ieee, struct sk_buff *skb,
 	/*Filter pkt not to me*/
 	multicast = is_multicast_ether_addr(hdr->addr1);
 	unicast = !multicast;
-	if (unicast && (compare_ether_addr(dev->dev_addr, hdr->addr1) != 0)) {
+	if (unicast && !ether_addr_equal(dev->dev_addr, hdr->addr1)) {
 		if (ieee->bNetPromiscuousMode)
 			bToOtherSTA = true;
 		else
diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c
index 869dcd3b385a..b6eb5df7a426 100644
--- a/drivers/staging/slicoss/slicoss.c
+++ b/drivers/staging/slicoss/slicoss.c
@@ -791,8 +791,8 @@ static bool slic_mac_filter(struct adapter *adapter,
 			struct mcast_address *mcaddr = adapter->mcastaddrs;
 
 			while (mcaddr) {
-				if (!compare_ether_addr(mcaddr->address,
-							ether_frame->ether_dhost)) {
+				if (ether_addr_equal(mcaddr->address,
+						     ether_frame->ether_dhost)) {
 					adapter->rcv_multicasts++;
 					netdev->stats.multicast++;
 					return true;
@@ -2333,7 +2333,7 @@ static int slic_mcast_add_list(struct adapter *adapter, char *address)
 	/* Check to see if it already exists */
 	mlist = adapter->mcastaddrs;
 	while (mlist) {
-		if (!compare_ether_addr(mlist->address, address))
+		if (ether_addr_equal(mlist->address, address))
 			return 0;
 		mlist = mlist->next;
 	}
diff --git a/drivers/staging/vt6655/bssdb.c b/drivers/staging/vt6655/bssdb.c
index f983915168b7..a23b591eeac3 100644
--- a/drivers/staging/vt6655/bssdb.c
+++ b/drivers/staging/vt6655/bssdb.c
@@ -148,7 +148,8 @@ BSSpSearchBSSList(
 			if (pDevice->bLinkPass == false) pCurrBSS->bSelected = false;
 			if ((pCurrBSS->bActive) &&
 			    (pCurrBSS->bSelected == false)) {
-				if (!compare_ether_addr(pCurrBSS->abyBSSID, pbyBSSID)) {
+				if (ether_addr_equal(pCurrBSS->abyBSSID,
+						     pbyBSSID)) {
 					if (pSSID != NULL) {
 						// compare ssid
 						if (!memcmp(pSSID->abySSID,
@@ -275,7 +276,8 @@ BSSvClearBSSList(
 	for (ii = 0; ii < MAX_BSS_NUM; ii++) {
 		if (bKeepCurrBSSID) {
 			if (pMgmt->sBSSList[ii].bActive &&
-			    !compare_ether_addr(pMgmt->sBSSList[ii].abyBSSID, pMgmt->abyCurrBSSID)) {
+			    ether_addr_equal(pMgmt->sBSSList[ii].abyBSSID,
+					     pMgmt->abyCurrBSSID)) {
 				// bKeepCurrBSSID = false;
 				continue;
 			}
@@ -318,7 +320,7 @@ BSSpAddrIsInBSSList(
 	for (ii = 0; ii < MAX_BSS_NUM; ii++) {
 		pBSSList = &(pMgmt->sBSSList[ii]);
 		if (pBSSList->bActive) {
-			if (!compare_ether_addr(pBSSList->abyBSSID, abyBSSID)) {
+			if (ether_addr_equal(pBSSList->abyBSSID, abyBSSID)) {
 				if (pSSID->len == ((PWLAN_IE_SSID)pBSSList->abySSID)->len) {
 					if (memcmp(pSSID->abySSID,
 						   ((PWLAN_IE_SSID)pBSSList->abySSID)->abySSID,
@@ -733,7 +735,8 @@ BSSDBbIsSTAInNodeDB(void *pMgmtObject, unsigned char *abyDstAddr,
 	// Index = 0 reserved for AP Node
 	for (ii = 1; ii < (MAX_NODE_NUM + 1); ii++) {
 		if (pMgmt->sNodeDBTable[ii].bActive) {
-			if (!compare_ether_addr(abyDstAddr, pMgmt->sNodeDBTable[ii].abyMACAddr)) {
+			if (ether_addr_equal(abyDstAddr,
+					     pMgmt->sNodeDBTable[ii].abyMACAddr)) {
 				*puNodeIndex = ii;
 				return true;
 			}
diff --git a/drivers/staging/vt6655/dpc.c b/drivers/staging/vt6655/dpc.c
index a9533f3f2529..0ff51cb4a207 100644
--- a/drivers/staging/vt6655/dpc.c
+++ b/drivers/staging/vt6655/dpc.c
@@ -172,9 +172,9 @@ s_vProcessRxMACHeader(PSDevice pDevice, unsigned char *pbyRxBufferAddr,
 	};
 
 	pbyRxBuffer = (unsigned char *)(pbyRxBufferAddr + cbHeaderSize);
-	if (!compare_ether_addr(pbyRxBuffer, &pDevice->abySNAP_Bridgetunnel[0])) {
+	if (ether_addr_equal(pbyRxBuffer, pDevice->abySNAP_Bridgetunnel)) {
 		cbHeaderSize += 6;
-	} else if (!compare_ether_addr(pbyRxBuffer, &pDevice->abySNAP_RFC1042[0])) {
+	} else if (ether_addr_equal(pbyRxBuffer, pDevice->abySNAP_RFC1042)) {
 		cbHeaderSize += 6;
 		pwType = (unsigned short *)(pbyRxBufferAddr + cbHeaderSize);
 		if ((*pwType != TYPE_PKT_IPX) && (*pwType != cpu_to_le16(0xF380))) {
@@ -420,7 +420,8 @@ device_receive_frame(
 	s_vGetDASA(skb->data+4, &cbHeaderSize, &pDevice->sRxEthHeader);
 
 	// filter packet send from myself
-	if (!compare_ether_addr((unsigned char *)&(pDevice->sRxEthHeader.abySrcAddr[0]), pDevice->abyCurrentNetAddr))
+	if (ether_addr_equal(pDevice->sRxEthHeader.abySrcAddr,
+			     pDevice->abyCurrentNetAddr))
 		return false;
 
 	if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) || (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA)) {
diff --git a/drivers/staging/vt6655/iwctl.c b/drivers/staging/vt6655/iwctl.c
index 9de698ef25f5..4bff8aa96be7 100644
--- a/drivers/staging/vt6655/iwctl.c
+++ b/drivers/staging/vt6655/iwctl.c
@@ -663,7 +663,8 @@ int iwctl_siwap(struct net_device *dev,
 			unsigned int ii, uSameBssidNum = 0;
 			for (ii = 0; ii < MAX_BSS_NUM; ii++) {
 				if (pMgmt->sBSSList[ii].bActive &&
-				    !compare_ether_addr(pMgmt->sBSSList[ii].abyBSSID, pMgmt->abyDesireBSSID)) {
+				    ether_addr_equal(pMgmt->sBSSList[ii].abyBSSID,
+						     pMgmt->abyDesireBSSID)) {
 					uSameBssidNum++;
 				}
 			}
@@ -840,7 +841,8 @@ int iwctl_siwessid(struct net_device *dev,
 					//         by means of judging if there are two same BSSID exist in list ?
 					for (ii = 0; ii < MAX_BSS_NUM; ii++) {
 						if (pMgmt->sBSSList[ii].bActive &&
-						    !compare_ether_addr(pMgmt->sBSSList[ii].abyBSSID, pCurr->abyBSSID)) {
+						    ether_addr_equal(pMgmt->sBSSList[ii].abyBSSID,
+								     pCurr->abyBSSID)) {
 							uSameBssidNum++;
 						}
 					}
diff --git a/drivers/staging/vt6655/key.c b/drivers/staging/vt6655/key.c
index 92b84b5ea115..04c1304d16e5 100644
--- a/drivers/staging/vt6655/key.c
+++ b/drivers/staging/vt6655/key.c
@@ -141,7 +141,7 @@ bool KeybGetKey(
 	*pKey = NULL;
 	for (i = 0; i < MAX_KEY_TABLE; i++) {
 		if ((pTable->KeyTable[i].bInUse == true) &&
-		    !compare_ether_addr(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
+		    ether_addr_equal(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
 			if (dwKeyIndex == 0xFFFFFFFF) {
 				if (pTable->KeyTable[i].PairwiseKey.bKeyValid == true) {
 					*pKey = &(pTable->KeyTable[i].PairwiseKey);
@@ -208,7 +208,7 @@ bool KeybSetKey(
 			j = i;
 		}
 		if ((pTable->KeyTable[i].bInUse == true) &&
-		    !compare_ether_addr(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
+		    ether_addr_equal(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
 			// found table already exist
 			if ((dwKeyIndex & PAIRWISE_KEY) != 0) {
 				// Pairwise key
@@ -385,7 +385,7 @@ bool KeybRemoveKey(
 
 	for (i = 0; i < MAX_KEY_TABLE; i++) {
 		if ((pTable->KeyTable[i].bInUse == true) &&
-		    !compare_ether_addr(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
+		    ether_addr_equal(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
 			if ((dwKeyIndex & PAIRWISE_KEY) != 0) {
 				pTable->KeyTable[i].PairwiseKey.bKeyValid = false;
 				s_vCheckKeyTableValid(pTable, dwIoBase);
@@ -429,7 +429,7 @@ bool KeybRemoveAllKey(
 
 	for (i = 0; i < MAX_KEY_TABLE; i++) {
 		if ((pTable->KeyTable[i].bInUse == true) &&
-		    !compare_ether_addr(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
+		    ether_addr_equal(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
 			pTable->KeyTable[i].PairwiseKey.bKeyValid = false;
 			for (u = 0; u < MAX_GROUP_KEY; u++) {
 				pTable->KeyTable[i].GroupKey[u].bKeyValid = false;
@@ -512,7 +512,7 @@ bool KeybGetTransmitKey(
 	*pKey = NULL;
 	for (i = 0; i < MAX_KEY_TABLE; i++) {
 		if ((pTable->KeyTable[i].bInUse == true) &&
-		    !compare_ether_addr(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
+		    ether_addr_equal(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
 			if (dwKeyType == PAIRWISE_KEY) {
 				if (pTable->KeyTable[i].PairwiseKey.bKeyValid == true) {
 					*pKey = &(pTable->KeyTable[i].PairwiseKey);
diff --git a/drivers/staging/vt6655/wctl.c b/drivers/staging/vt6655/wctl.c
index 9eb81b4eee80..f05f9f55398b 100644
--- a/drivers/staging/vt6655/wctl.c
+++ b/drivers/staging/vt6655/wctl.c
@@ -75,8 +75,8 @@ bool WCTLbIsDuplicate(PSCache pCache, PS802_11Header pMACHeader)
 		for (ii = 0; ii < DUPLICATE_RX_CACHE_LENGTH; ii++) {
 			pCacheEntry = &(pCache->asCacheEntry[uIndex]);
 			if ((pCacheEntry->wFmSequence == pMACHeader->wSeqCtl) &&
-			    (!compare_ether_addr(&(pCacheEntry->abyAddr2[0]), &(pMACHeader->abyAddr2[0])))
-) {
+			    ether_addr_equal(pCacheEntry->abyAddr2,
+					     pMACHeader->abyAddr2)) {
 				/* Duplicate match */
 				return true;
 			}
@@ -111,8 +111,8 @@ unsigned int WCTLuSearchDFCB(PSDevice pDevice, PS802_11Header pMACHeader)
 
 	for (ii = 0; ii < pDevice->cbDFCB; ii++) {
 		if ((pDevice->sRxDFCB[ii].bInUse == true) &&
-		    (!compare_ether_addr(&(pDevice->sRxDFCB[ii].abyAddr2[0]), &(pMACHeader->abyAddr2[0])))
-) {
+		    ether_addr_equal(pDevice->sRxDFCB[ii].abyAddr2,
+				     pMACHeader->abyAddr2)) {
 			//
 			return ii;
 		}
diff --git a/drivers/staging/vt6655/wmgr.c b/drivers/staging/vt6655/wmgr.c
index 9938813f997a..ed4b32b6d9ce 100644
--- a/drivers/staging/vt6655/wmgr.c
+++ b/drivers/staging/vt6655/wmgr.c
@@ -1680,7 +1680,8 @@ s_vMgrRxDeauthentication(
 			vMgrDecodeDeauthen(&sFrame);
 			DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO  "AP deauthed me, reason=%d.\n", cpu_to_le16((*(sFrame.pwReason))));
 			// TODO: update BSS list for specific BSSID if pre-authentication case
-			if (!compare_ether_addr(sFrame.pHdr->sA3.abyAddr3, pMgmt->abyCurrBSSID)) {
+			if (ether_addr_equal(sFrame.pHdr->sA3.abyAddr3,
+					     pMgmt->abyCurrBSSID)) {
 				if (pMgmt->eCurrState >= WMAC_STATE_AUTHPENDING) {
 					pMgmt->sNodeDBTable[0].bActive = false;
 					pMgmt->eCurrMode = WMAC_MODE_STANDBY;
diff --git a/drivers/staging/vt6655/wpactl.c b/drivers/staging/vt6655/wpactl.c
index e8d9ecd2913a..044368a46c53 100644
--- a/drivers/staging/vt6655/wpactl.c
+++ b/drivers/staging/vt6655/wpactl.c
@@ -394,7 +394,7 @@ int wpa_set_keys(PSDevice pDevice, void *ctx, bool fcpfkernel)
 
 		} else {
 			// Key Table Full
-			if (!compare_ether_addr(&param->addr[0], pDevice->abyBSSID)) {
+			if (ether_addr_equal(param->addr, pDevice->abyBSSID)) {
 				//DBG_PRN_WLAN03(("return NDIS_STATUS_INVALID_DATA -Key Table Full.2\n"));
 				//spin_unlock_irq(&pDevice->lock);
 				return -EINVAL;
diff --git a/drivers/staging/vt6656/bssdb.c b/drivers/staging/vt6656/bssdb.c
index ee79bbdf1a06..ed1d609cc25f 100644
--- a/drivers/staging/vt6656/bssdb.c
+++ b/drivers/staging/vt6656/bssdb.c
@@ -126,7 +126,7 @@ PKnownBSS BSSpSearchBSSList(struct vnt_private *pDevice,
 
             if ((pCurrBSS->bActive) &&
                 (pCurrBSS->bSelected == false)) {
-		    if (!compare_ether_addr(pCurrBSS->abyBSSID, pbyBSSID)) {
+		    if (ether_addr_equal(pCurrBSS->abyBSSID, pbyBSSID)) {
                     if (pSSID != NULL) {
                         // compare ssid
                         if ( !memcmp(pSSID->abySSID,
@@ -242,8 +242,8 @@ void BSSvClearBSSList(struct vnt_private *pDevice, int bKeepCurrBSSID)
     for (ii = 0; ii < MAX_BSS_NUM; ii++) {
         if (bKeepCurrBSSID) {
             if (pMgmt->sBSSList[ii].bActive &&
-		!compare_ether_addr(pMgmt->sBSSList[ii].abyBSSID,
-				    pMgmt->abyCurrBSSID)) {
+		ether_addr_equal(pMgmt->sBSSList[ii].abyBSSID,
+				 pMgmt->abyCurrBSSID)) {
  //mike mark: there are two BSSID's in list. If that AP is in hidden ssid mode, one SSID is null,
  //                 but other's might not be obvious, so if it associate's with your STA,
  //                 you must keep the two of them!!
@@ -277,7 +277,7 @@ PKnownBSS BSSpAddrIsInBSSList(struct vnt_private *pDevice,
     for (ii = 0; ii < MAX_BSS_NUM; ii++) {
         pBSSList = &(pMgmt->sBSSList[ii]);
         if (pBSSList->bActive) {
-		if (!compare_ether_addr(pBSSList->abyBSSID, abyBSSID)) {
+		if (ether_addr_equal(pBSSList->abyBSSID, abyBSSID)) {
                 if (pSSID->len == ((PWLAN_IE_SSID)pBSSList->abySSID)->len){
                     if (memcmp(pSSID->abySSID,
                             ((PWLAN_IE_SSID)pBSSList->abySSID)->abySSID,
@@ -623,8 +623,8 @@ int BSSbIsSTAInNodeDB(struct vnt_private *pDevice,
     // Index = 0 reserved for AP Node
     for (ii = 1; ii < (MAX_NODE_NUM + 1); ii++) {
         if (pMgmt->sNodeDBTable[ii].bActive) {
-		if (!compare_ether_addr(abyDstAddr,
-					pMgmt->sNodeDBTable[ii].abyMACAddr)) {
+		if (ether_addr_equal(abyDstAddr,
+				     pMgmt->sNodeDBTable[ii].abyMACAddr)) {
                 *puNodeIndex = ii;
                 return true;
             }
diff --git a/drivers/staging/vt6656/dpc.c b/drivers/staging/vt6656/dpc.c
index ea7d443b11d0..29381b466e20 100644
--- a/drivers/staging/vt6656/dpc.c
+++ b/drivers/staging/vt6656/dpc.c
@@ -136,9 +136,9 @@ static void s_vProcessRxMACHeader(struct vnt_private *pDevice,
     };
 
     pbyRxBuffer = (u8 *) (pbyRxBufferAddr + cbHeaderSize);
-    if (!compare_ether_addr(pbyRxBuffer, &pDevice->abySNAP_Bridgetunnel[0])) {
+    if (ether_addr_equal(pbyRxBuffer, pDevice->abySNAP_Bridgetunnel)) {
         cbHeaderSize += 6;
-    } else if (!compare_ether_addr(pbyRxBuffer, &pDevice->abySNAP_RFC1042[0])) {
+    } else if (ether_addr_equal(pbyRxBuffer, pDevice->abySNAP_RFC1042)) {
         cbHeaderSize += 6;
         pwType = (u16 *) (pbyRxBufferAddr + cbHeaderSize);
 	if ((*pwType == cpu_to_be16(ETH_P_IPX)) ||
@@ -361,7 +361,7 @@ int RXbBulkInProcessData(struct vnt_private *pDevice, struct vnt_rcb *pRCB,
     if ((pMgmt->eCurrMode == WMAC_MODE_STANDBY) ||
         (pMgmt->eCurrMode == WMAC_MODE_ESS_STA)) {
        if (pMgmt->sNodeDBTable[0].bActive) {
-	 if (!compare_ether_addr(pMgmt->abyCurrBSSID, pMACHeader->addr2)) {
+	 if (ether_addr_equal(pMgmt->abyCurrBSSID, pMACHeader->addr2)) {
 	    if (pMgmt->sNodeDBTable[0].uInActiveCount != 0)
                   pMgmt->sNodeDBTable[0].uInActiveCount = 0;
            }
@@ -374,8 +374,7 @@ int RXbBulkInProcessData(struct vnt_private *pDevice, struct vnt_rcb *pRCB,
             return false;
         }
 
-	if (compare_ether_addr(pDevice->abyCurrentNetAddr,
-			       pMACHeader->addr1)) {
+	if (!ether_addr_equal(pDevice->abyCurrentNetAddr, pMACHeader->addr1)) {
 		return false;
         }
     }
@@ -383,8 +382,8 @@ int RXbBulkInProcessData(struct vnt_private *pDevice, struct vnt_rcb *pRCB,
     // Use for TKIP MIC
     s_vGetDASA(pbyFrame, &cbHeaderSize, &pDevice->sRxEthHeader);
 
-    if (!compare_ether_addr((u8 *)&(pDevice->sRxEthHeader.h_source[0]),
-			    pDevice->abyCurrentNetAddr))
+    if (ether_addr_equal((u8 *)pDevice->sRxEthHeader.h_source,
+			 pDevice->abyCurrentNetAddr))
         return false;
 
     if ((pMgmt->eCurrMode == WMAC_MODE_ESS_AP) || (pMgmt->eCurrMode == WMAC_MODE_IBSS_STA)) {
diff --git a/drivers/staging/vt6656/iwctl.c b/drivers/staging/vt6656/iwctl.c
index d0cf7d8a20e5..033cb50f779a 100644
--- a/drivers/staging/vt6656/iwctl.c
+++ b/drivers/staging/vt6656/iwctl.c
@@ -657,8 +657,8 @@ int iwctl_siwap(struct net_device *dev, struct iw_request_info *info,
 			unsigned uSameBssidNum = 0;
 			for (ii = 0; ii < MAX_BSS_NUM; ii++) {
 				if (pMgmt->sBSSList[ii].bActive &&
-					!compare_ether_addr(pMgmt->sBSSList[ii].abyBSSID,
-							pMgmt->abyDesireBSSID)) {
+					ether_addr_equal(pMgmt->sBSSList[ii].abyBSSID,
+							 pMgmt->abyDesireBSSID)) {
 					uSameBssidNum++;
 				}
 			}
@@ -840,8 +840,8 @@ int iwctl_siwessid(struct net_device *dev, struct iw_request_info *info,
 				// are two same BSSID exist in list ?
 				for (ii = 0; ii < MAX_BSS_NUM; ii++) {
 					if (pMgmt->sBSSList[ii].bActive &&
-						!compare_ether_addr(pMgmt->sBSSList[ii].abyBSSID,
-								pCurr->abyBSSID)) {
+						ether_addr_equal(pMgmt->sBSSList[ii].abyBSSID,
+								 pCurr->abyBSSID)) {
 						uSameBssidNum++;
 					}
 				}
diff --git a/drivers/staging/vt6656/key.c b/drivers/staging/vt6656/key.c
index 205590b0e9c8..be92c048a12e 100644
--- a/drivers/staging/vt6656/key.c
+++ b/drivers/staging/vt6656/key.c
@@ -151,7 +151,7 @@ int KeybGetKey(PSKeyManagement pTable, u8 *pbyBSSID, u32 dwKeyIndex,
     *pKey = NULL;
     for (i=0;i<MAX_KEY_TABLE;i++) {
         if ((pTable->KeyTable[i].bInUse == true) &&
-	    !compare_ether_addr(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
+	    ether_addr_equal(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
             if (dwKeyIndex == 0xFFFFFFFF) {
                 if (pTable->KeyTable[i].PairwiseKey.bKeyValid == true) {
                     *pKey = &(pTable->KeyTable[i].PairwiseKey);
@@ -213,7 +213,7 @@ int KeybSetKey(struct vnt_private *pDevice, PSKeyManagement pTable,
             j = i;
         }
         if ((pTable->KeyTable[i].bInUse == true) &&
-	    !compare_ether_addr(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
+	    ether_addr_equal(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
             // found table already exist
             if ((dwKeyIndex & PAIRWISE_KEY) != 0) {
                 // Pairwise key
@@ -395,7 +395,7 @@ int KeybRemoveKey(struct vnt_private *pDevice, PSKeyManagement pTable,
     } else {
         for (i=0;i<MAX_KEY_TABLE;i++) {
             if ( (pTable->KeyTable[i].bInUse == true) &&
-		 !compare_ether_addr(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
+		 ether_addr_equal(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
 
                 if ((dwKeyIndex & PAIRWISE_KEY) != 0) {
                     pTable->KeyTable[i].PairwiseKey.bKeyValid = false;
@@ -445,7 +445,7 @@ int KeybRemoveAllKey(struct vnt_private *pDevice, PSKeyManagement pTable,
 
     for (i=0;i<MAX_KEY_TABLE;i++) {
         if ((pTable->KeyTable[i].bInUse == true) &&
-	    !compare_ether_addr(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
+	    ether_addr_equal(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
             pTable->KeyTable[i].PairwiseKey.bKeyValid = false;
 	    for (u = 0; u < MAX_GROUP_KEY; u++)
 		pTable->KeyTable[i].GroupKey[u].bKeyValid = false;
@@ -480,7 +480,7 @@ int KeybGetTransmitKey(PSKeyManagement pTable, u8 *pbyBSSID, u32 dwKeyType,
 
     for (i = 0; i < MAX_KEY_TABLE; i++) {
         if ((pTable->KeyTable[i].bInUse == true) &&
-	    !compare_ether_addr(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
+	    ether_addr_equal(pTable->KeyTable[i].abyBSSID, pbyBSSID)) {
 
             if (dwKeyType == PAIRWISE_KEY) {
 
diff --git a/drivers/staging/vt6656/wctl.c b/drivers/staging/vt6656/wctl.c
index 47a655db51ef..814342cd948e 100644
--- a/drivers/staging/vt6656/wctl.c
+++ b/drivers/staging/vt6656/wctl.c
@@ -69,8 +69,7 @@ bool WCTLbIsDuplicate (PSCache pCache, struct ieee80211_hdr *pMACHeader)
         for (ii = 0; ii < DUPLICATE_RX_CACHE_LENGTH; ii++) {
             pCacheEntry = &(pCache->asCacheEntry[uIndex]);
             if ((pCacheEntry->wFmSequence == pMACHeader->seq_ctrl) &&
-		(!compare_ether_addr(&(pCacheEntry->abyAddr2[0]),
-				     &(pMACHeader->addr2[0]))) &&
+		ether_addr_equal(pCacheEntry->abyAddr2, pMACHeader->addr2) &&
                 (LOBYTE(pCacheEntry->wFrameCtl) == LOBYTE(pMACHeader->frame_control))
                 ) {
                 /* Duplicate match */
@@ -110,8 +109,8 @@ unsigned int WCTLuSearchDFCB(struct vnt_private *pDevice,
 
 	for (ii = 0; ii < pDevice->cbDFCB; ii++) {
 		if ((pDevice->sRxDFCB[ii].bInUse == true) &&
-		    (!compare_ether_addr(&(pDevice->sRxDFCB[ii].abyAddr2[0]),
-					  &(pMACHeader->addr2[0])))) {
+		    ether_addr_equal(pDevice->sRxDFCB[ii].abyAddr2,
+				     pMACHeader->addr2)) {
 			return ii;
 		}
 	}
diff --git a/drivers/staging/vt6656/wmgr.c b/drivers/staging/vt6656/wmgr.c
index b6cbd138a2b4..bc808ef7bd21 100644
--- a/drivers/staging/vt6656/wmgr.c
+++ b/drivers/staging/vt6656/wmgr.c
@@ -1422,8 +1422,8 @@ static void s_vMgrRxDeauthentication(struct vnt_private *pDevice,
 	   pDevice->fWPA_Authened = false;
             DBG_PRT(MSG_LEVEL_NOTICE, KERN_INFO  "AP deauthed me, reason=%d.\n", cpu_to_le16((*(sFrame.pwReason))));
             // TODO: update BSS list for specific BSSID if pre-authentication case
-	    if (!compare_ether_addr(sFrame.pHdr->sA3.abyAddr3,
-				    pMgmt->abyCurrBSSID)) {
+	    if (ether_addr_equal(sFrame.pHdr->sA3.abyAddr3,
+				 pMgmt->abyCurrBSSID)) {
                 if (pMgmt->eCurrState >= WMAC_STATE_AUTHPENDING) {
                     pMgmt->sNodeDBTable[0].bActive = false;
                     pMgmt->eCurrMode = WMAC_MODE_STANDBY;
diff --git a/drivers/staging/vt6656/wpactl.c b/drivers/staging/vt6656/wpactl.c
index 9f1b413ce86f..003bd7c614e5 100644
--- a/drivers/staging/vt6656/wpactl.c
+++ b/drivers/staging/vt6656/wpactl.c
@@ -227,7 +227,7 @@ int wpa_set_keys(struct vnt_private *pDevice, void *ctx)
 			DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Pairwise Key Set\n");
 		} else {
 			// Key Table Full
-			if (!compare_ether_addr(&param->addr[0], pDevice->abyBSSID)) {
+			if (ether_addr_equal(param->addr, pDevice->abyBSSID)) {
 				//DBG_PRN_WLAN03(("return NDIS_STATUS_INVALID_DATA -Key Table Full.2\n"));
 				return -EINVAL;
 			} else {
-- 
cgit 


From 462035531e1363f8be117de6d812586e91444f37 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sun, 1 Sep 2013 15:41:00 -0700
Subject: staging: vt6655: Remove commented out block with compare_ether_addr

compare_ether_addr is being removed so remove
even the commented out code referring to it.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6655/vntwifi.c | 22 ----------------------
 1 file changed, 22 deletions(-)

diff --git a/drivers/staging/vt6655/vntwifi.c b/drivers/staging/vt6655/vntwifi.c
index d8f4f8e7d05e..d2bdb71fe62d 100644
--- a/drivers/staging/vt6655/vntwifi.c
+++ b/drivers/staging/vt6655/vntwifi.c
@@ -752,25 +752,3 @@ VNTWIFIbChannelSwitch(
 	//spin_unlock_irq(&pDevice->lock);
 	return true;
 }
-
-/*
-  bool
-  VNTWIFIbRadarPresent(
-  void *pMgmtObject,
-  unsigned char byChannel
-) {
-  PSMgmtObject    pMgmt = (PSMgmtObject) pMgmtObject;
-  if ((pMgmt->eCurrMode == WMAC_MODE_IBSS_STA) &&
-  (byChannel == (unsigned char) pMgmt->uCurrChannel) &&
-  (pMgmt->bSwitchChannel != true) &&
-  (pMgmt->b11hEnable == true)) {
-  if (!compare_ether_addr(pMgmt->abyIBSSDFSOwner, CARDpGetCurrentAddress(pMgmt->pAdapter))) {
-  pMgmt->byNewChannel = CARDbyAutoChannelSelect(pMgmt->pAdapter,(unsigned char) pMgmt->uCurrChannel);
-  pMgmt->bSwitchChannel = true;
-  }
-  BEACONbSendBeacon(pMgmt);
-  CARDbChannelSwitch(pMgmt->pAdapter, 0, pMgmt->byNewChannel, 10);
-  }
-  return true;
-  }
-*/
-- 
cgit 


From 5e994b0e6407f7b3be85f112dce2342a07fc9a36 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 4 Sep 2013 15:55:53 -0500
Subject: staging: r8188eu: Fix Smatch off-by-one warning in
 hal/rtl8188e_hal_init.c

Smatch reports the following warning:
"drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c:2008
Hal_ReadPowerValueFromPROM_8188E()
	 error: buffer overflow 'pwrInfo24G->IndexBW40_Base[rfPath]' 5 <= 5"

drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c
  2005                          /* 2.4G default value */
  2006                          for (group = 0; group < MAX_CHNL_GROUP_24G; group++) {
  2007                                  pwrInfo24G->IndexCCK_Base[rfPath][group] =      EEPROM_DEFAULT_24G_INDEX;
  2008                                  pwrInfo24G->IndexBW40_Base[rfPath][group] =     EEPROM_DEFAULT_24G_INDEX;

The reason is that IndexCCK_Base[] has MAX_CHNL_GROUP_24G elements, but
IndexBW40_Base is smaller by 1. Make them both have MAX_CHNL_GROUP_24G
elements.

Reported by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/include/rtl8188e_hal.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8188eu/include/rtl8188e_hal.h b/drivers/staging/rtl8188eu/include/rtl8188e_hal.h
index 52b280165a92..555c801d2ded 100644
--- a/drivers/staging/rtl8188eu/include/rtl8188e_hal.h
+++ b/drivers/staging/rtl8188eu/include/rtl8188e_hal.h
@@ -188,7 +188,7 @@ enum ChannelPlan {
 
 struct txpowerinfo24g {
 	u8 IndexCCK_Base[MAX_RF_PATH][MAX_CHNL_GROUP_24G];
-	u8 IndexBW40_Base[MAX_RF_PATH][MAX_CHNL_GROUP_24G-1];
+	u8 IndexBW40_Base[MAX_RF_PATH][MAX_CHNL_GROUP_24G];
 	/* If only one tx, only BW20 and OFDM are used. */
 	s8 CCK_Diff[MAX_RF_PATH][MAX_TX_COUNT];
 	s8 OFDM_Diff[MAX_RF_PATH][MAX_TX_COUNT];
-- 
cgit 


From d7a380b2b3d748362c25da8e356ce4fe8ab316ce Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 4 Sep 2013 15:55:54 -0500
Subject: staging: r8188eu: Fix smatch error in core/rtw_mlme_ext.c

Smatch reports the following warning:
"drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:8328 mlme_evt_hdl()
	 error: buffer overflow 'wlanevents' 24 <= 24"

  8321          /*  checking if event code is valid */
  8322          if (evt_code >= MAX_C2HEVT) {
                    ^^^^^^^^^^^^^^^^^^^^^^
  8323                  RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_, ("\nEvent Code(%d) mismatch!\n", evt_code));
  8324                  goto _abort_event_;
  8325          }
  8326
  8327          /*  checking if event size match the event parm size */
  8328          if ((wlanevents[evt_code].parmsize != 0) &&
                     ^^^^^^^^^^^^^^^^^^^^
  8329              (wlanevents[evt_code].parmsize != evt_sz)) {
  8330                  RT_TRACE(_module_rtl871x_cmd_c_, _drv_err_,
  8331                           ("\nEvent(%d) Parm Size mismatch (%d vs %d)!\n",
  8332                           evt_code, wlanevents[evt_code].parmsize, evt_sz));
  8333                  goto _abort_event_;
  8334          }

This warning results because the number of items in "enum rtw_c2h_event",
which determines the value of MAX_C2HEVT, is one more than in "struct wlanevents".
Adding an extra dummy event to the latter fixes the problem.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/include/rtw_mlme_ext.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h b/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h
index a96b018e5e6a..853ab80a2b86 100644
--- a/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h
+++ b/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h
@@ -870,6 +870,7 @@ static struct fwevent wlanevents[] = {
 	{0, NULL},
 	{0, NULL},
 	{0, &rtw_cpwm_event_callback},
+	{0, NULL},
 };
 
 #endif/* _RTL_MLME_EXT_C_ */
-- 
cgit 


From dc2f9db95507b8641303c70e8e62ce286815ccdf Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 4 Sep 2013 15:55:55 -0500
Subject: staging: r8188eu: Fix smatch warning in os_dep/usb_intf.c

Smatch reports the following warning:

  CHECK   drivers/staging/rtl8188eu/os_dep/usb_intf.c
drivers/staging/rtl8188eu/os_dep/usb_intf.c:740 rtw_usb_if1_init() info: redundant null check on padapter->HalData calling kfree()

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/os_dep/usb_intf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8188eu/os_dep/usb_intf.c b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
index d3078d200e50..6e40299adbc2 100644
--- a/drivers/staging/rtl8188eu/os_dep/usb_intf.c
+++ b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
@@ -736,7 +736,7 @@ static struct adapter *rtw_usb_if1_init(struct dvobj_priv *dvobj,
 	status = _SUCCESS;
 
 free_hal_data:
-	if (status != _SUCCESS && padapter->HalData)
+	if (status != _SUCCESS)
 		kfree(padapter->HalData);
 handle_dualmac:
 	if (status != _SUCCESS)
-- 
cgit 


From fbb57f6d35f510e13d4f7e0af67ee232146c20da Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 4 Sep 2013 15:55:56 -0500
Subject: staging: r8188eu: Fix smatch warning in core/rtw_ieee80211.

Smatch shows the following warning:
drivers/staging/rtl8188eu/core/rtw_ieee80211.c:161 rtw_set_ie() info: ignoring unreachable code.

The cause is a module exit tracing statement after a return.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/core/rtw_ieee80211.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_ieee80211.c b/drivers/staging/rtl8188eu/core/rtw_ieee80211.c
index 3605c5da822d..6fc77428e83a 100644
--- a/drivers/staging/rtl8188eu/core/rtw_ieee80211.c
+++ b/drivers/staging/rtl8188eu/core/rtw_ieee80211.c
@@ -157,8 +157,8 @@ _func_enter_;
 
 	*frlen = *frlen + (len + 2);
 
-	return pbuf + len + 2;
 _func_exit_;
+	return pbuf + len + 2;
 }
 
 inline u8 *rtw_set_ie_ch_switch (u8 *buf, u32 *buf_len, u8 ch_switch_mode,
-- 
cgit 


From 95119067763c0340f39a9eb09ec5b0e35e6c8242 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 4 Sep 2013 15:55:57 -0500
Subject: staging: r8188eu: Remove unreachable code in core/rtw_br_ext.c

In this file, a "return -1" immediately follows a "return 0". Remove the
second line.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/core/rtw_br_ext.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_br_ext.c b/drivers/staging/rtl8188eu/core/rtw_br_ext.c
index fbca394cf4fc..63564f71c7c9 100644
--- a/drivers/staging/rtl8188eu/core/rtw_br_ext.c
+++ b/drivers/staging/rtl8188eu/core/rtw_br_ext.c
@@ -677,9 +677,8 @@ int nat25_db_handle(struct adapter *priv, struct sk_buff *skb, int method)
 			switch (method) {
 			case NAT25_CHECK:
 				if (!memcmp(skb->data+ETH_ALEN, ipx->ipx_source.node, ETH_ALEN))
-				DEBUG_INFO("NAT25: Check IPX skb_copy\n");
+					DEBUG_INFO("NAT25: Check IPX skb_copy\n");
 				return 0;
-				return -1;
 			case NAT25_INSERT:
 				DEBUG_INFO("NAT25: Insert IPX, Dest =%08x,%02x%02x%02x%02x%02x%02x,%04x Source =%08x,%02x%02x%02x%02x%02x%02x,%04x\n",
 					ipx->ipx_dest.net,
-- 
cgit 


From e255b0c6f745eac61a7971ff6f0f4f6bf9039374 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 4 Sep 2013 15:55:58 -0500
Subject: staging: r8188eu: Fix some smatch errors in core/rtw_efuse.c

Smatch reports the following situations:

drivers/staging/rtl8188eu/core/rtw_efuse.c:589 rtw_efuse_map_write() error: buffer overflow 'newdata' 8 <= 8
drivers/staging/rtl8188eu/core/rtw_efuse.c:598 rtw_efuse_map_write() error: buffer overflow 'newdata' 8 <= 8
drivers/staging/rtl8188eu/core/rtw_efuse.c:681 rtw_BT_efuse_map_write() error: buffer overflow 'newdata' 8 <= 8
drivers/staging/rtl8188eu/core/rtw_efuse.c:690 rtw_BT_efuse_map_write() error: buffer overflow 'newdata' 8 <= 8

In these cases, it is possible to write beyond the end of an array.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/core/rtw_efuse.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_efuse.c b/drivers/staging/rtl8188eu/core/rtw_efuse.c
index 869434c4cf69..ad1c174cd7ee 100644
--- a/drivers/staging/rtl8188eu/core/rtw_efuse.c
+++ b/drivers/staging/rtl8188eu/core/rtw_efuse.c
@@ -542,7 +542,7 @@ u8 rtw_efuse_map_write(struct adapter *padapter, u16 addr, u16 cnts, u8 *data)
 {
 	u8 offset, word_en;
 	u8 *map;
-	u8 newdata[PGPKT_DATA_SIZE];
+	u8 newdata[PGPKT_DATA_SIZE + 1];
 	s32	i, idx;
 	u8 ret = _SUCCESS;
 	u16 mapLen = 0;
@@ -564,7 +564,7 @@ u8 rtw_efuse_map_write(struct adapter *padapter, u16 addr, u16 cnts, u8 *data)
 
 	offset = (addr >> 3);
 	word_en = 0xF;
-	_rtw_memset(newdata, 0xFF, PGPKT_DATA_SIZE);
+	_rtw_memset(newdata, 0xFF, PGPKT_DATA_SIZE + 1);
 	i = addr & 0x7;	/*  index of one package */
 	idx = 0;	/*  data index */
 
@@ -634,7 +634,7 @@ u8 rtw_BT_efuse_map_write(struct adapter *padapter, u16 addr, u16 cnts, u8 *data
 {
 	u8 offset, word_en;
 	u8 *map;
-	u8 newdata[PGPKT_DATA_SIZE];
+	u8 newdata[PGPKT_DATA_SIZE + 1];
 	s32	i, idx;
 	u8 ret = _SUCCESS;
 	u16 mapLen = 0;
@@ -656,7 +656,7 @@ u8 rtw_BT_efuse_map_write(struct adapter *padapter, u16 addr, u16 cnts, u8 *data
 
 	offset = (addr >> 3);
 	word_en = 0xF;
-	_rtw_memset(newdata, 0xFF, PGPKT_DATA_SIZE);
+	_rtw_memset(newdata, 0xFF, PGPKT_DATA_SIZE + 1);
 	i = addr & 0x7;	/*  index of one package */
 	idx = 0;	/*  data index */
 
-- 
cgit 


From 9b276d2bd20ea2d20b45aab1b3c1700b7f2afa64 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 4 Sep 2013 15:55:59 -0500
Subject: staging: r8188eu: Fix a smatch warnings in core/rtw_recv.c

Smatch reports the following:
drivers/staging/rtl8188eu/os_dep/recv_linux.c:227 rtw_recv_indicatepkt() warn: variable dereferenced before check 'precv_frame' (see line 139)

The test in this location is removed and added in the free routine.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/core/rtw_recv.c     | 3 ++-
 drivers/staging/rtl8188eu/os_dep/recv_linux.c | 3 +--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_recv.c b/drivers/staging/rtl8188eu/core/rtw_recv.c
index 201165787362..55851997f21c 100644
--- a/drivers/staging/rtl8188eu/core/rtw_recv.c
+++ b/drivers/staging/rtl8188eu/core/rtw_recv.c
@@ -208,7 +208,8 @@ int rtw_free_recvframe(union recv_frame *precvframe, struct __queue *pfree_recv_
 	struct recv_priv *precvpriv = &padapter->recvpriv;
 
 _func_enter_;
-
+	if (!precvframe)
+		return _FAIL;
 	if (precvframe->u.hdr.pkt) {
 		dev_kfree_skb_any(precvframe->u.hdr.pkt);/* free skb by driver */
 		precvframe->u.hdr.pkt = NULL;
diff --git a/drivers/staging/rtl8188eu/os_dep/recv_linux.c b/drivers/staging/rtl8188eu/os_dep/recv_linux.c
index e2f4e7d77170..c40ef1357117 100644
--- a/drivers/staging/rtl8188eu/os_dep/recv_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/recv_linux.c
@@ -224,8 +224,7 @@ _func_exit_;
 _recv_indicatepkt_drop:
 
 	 /* enqueue back to free_recv_queue */
-	if (precv_frame)
-		rtw_free_recvframe(precv_frame, pfree_recv_queue);
+	rtw_free_recvframe(precv_frame, pfree_recv_queue);
 
 _func_exit_;
 	 return _FAIL;
-- 
cgit 


From efbff73ec1caa9a87fff4a5a88db0dd1b9756ede Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 4 Sep 2013 15:56:00 -0500
Subject: staging: r8188eu: Fix smatch warning in os_dep/osdep_service.c

Smatch reports the following warning:
drivers/staging/rtl8188eu/os_dep/osdep_service.c:634 rtw_change_ifname() warn: variable dereferenced before check 'padapter' (see line 630)

The dereference in question is deferred until the validity of 'padapter' is verified.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/os_dep/osdep_service.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8188eu/os_dep/osdep_service.c b/drivers/staging/rtl8188eu/os_dep/osdep_service.c
index 4e0bfb7e153b..51a1f6f9dbe7 100644
--- a/drivers/staging/rtl8188eu/os_dep/osdep_service.c
+++ b/drivers/staging/rtl8188eu/os_dep/osdep_service.c
@@ -627,13 +627,14 @@ RETURN:
 int rtw_change_ifname(struct adapter *padapter, const char *ifname)
 {
 	struct net_device *pnetdev;
-	struct net_device *cur_pnetdev = padapter->pnetdev;
+	struct net_device *cur_pnetdev;
 	struct rereg_nd_name_data *rereg_priv;
 	int ret;
 
 	if (!padapter)
 		goto error;
 
+	cur_pnetdev = padapter->pnetdev;
 	rereg_priv = &padapter->rereg_nd_name_priv;
 
 	/* free the old_pnetdev */
-- 
cgit 


From 33370038ff82e1aa465842416e033e30d6a7cfdb Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 4 Sep 2013 15:56:01 -0500
Subject: staging: r8188eu: Fix smatch warning in hal/usb_ops_linux.c

Smatch reports the following warning:
drivers/staging/rtl8188eu/hal/usb_ops_linux.c:614 usb_read_port() warn: variable dereferenced before check 'precvbuf' (see line 611)

Fixing this particular warning required some refactoring of the code.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/hal/usb_ops_linux.c | 96 +++++++++++++--------------
 1 file changed, 48 insertions(+), 48 deletions(-)

diff --git a/drivers/staging/rtl8188eu/hal/usb_ops_linux.c b/drivers/staging/rtl8188eu/hal/usb_ops_linux.c
index bc564169b2f0..2a20f2348108 100644
--- a/drivers/staging/rtl8188eu/hal/usb_ops_linux.c
+++ b/drivers/staging/rtl8188eu/hal/usb_ops_linux.c
@@ -605,68 +605,68 @@ _func_enter_;
 		return _FAIL;
 	}
 
+	if (!precvbuf) {
+		RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
+			 ("usb_read_port:precvbuf==NULL\n"));
+		return _FAIL;
+	}
+
 	if ((!precvbuf->reuse) || (precvbuf->pskb == NULL)) {
 		precvbuf->pskb = skb_dequeue(&precvpriv->free_recv_skb_queue);
 		if (NULL != precvbuf->pskb)
 			precvbuf->reuse = true;
 	}
 
-	if (precvbuf != NULL) {
-		rtl8188eu_init_recvbuf(adapter, precvbuf);
-
-		/* re-assign for linux based on skb */
-		if ((!precvbuf->reuse) || (precvbuf->pskb == NULL)) {
-			precvbuf->pskb = netdev_alloc_skb(adapter->pnetdev, MAX_RECVBUF_SZ + RECVBUFF_ALIGN_SZ);
-			if (precvbuf->pskb == NULL) {
-				RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("init_recvbuf(): alloc_skb fail!\n"));
-				DBG_88E("#### usb_read_port() alloc_skb fail!#####\n");
-				return _FAIL;
-			}
-
-			tmpaddr = (size_t)precvbuf->pskb->data;
-			alignment = tmpaddr & (RECVBUFF_ALIGN_SZ-1);
-			skb_reserve(precvbuf->pskb, (RECVBUFF_ALIGN_SZ - alignment));
-
-			precvbuf->phead = precvbuf->pskb->head;
-			precvbuf->pdata = precvbuf->pskb->data;
-			precvbuf->ptail = skb_tail_pointer(precvbuf->pskb);
-			precvbuf->pend = skb_end_pointer(precvbuf->pskb);
-			precvbuf->pbuf = precvbuf->pskb->data;
-		} else { /* reuse skb */
-			precvbuf->phead = precvbuf->pskb->head;
-			precvbuf->pdata = precvbuf->pskb->data;
-			precvbuf->ptail = skb_tail_pointer(precvbuf->pskb);
-			precvbuf->pend = skb_end_pointer(precvbuf->pskb);
-			precvbuf->pbuf = precvbuf->pskb->data;
+	rtl8188eu_init_recvbuf(adapter, precvbuf);
 
-			precvbuf->reuse = false;
+	/* re-assign for linux based on skb */
+	if ((!precvbuf->reuse) || (precvbuf->pskb == NULL)) {
+		precvbuf->pskb = netdev_alloc_skb(adapter->pnetdev, MAX_RECVBUF_SZ + RECVBUFF_ALIGN_SZ);
+		if (precvbuf->pskb == NULL) {
+			RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("init_recvbuf(): alloc_skb fail!\n"));
+			DBG_88E("#### usb_read_port() alloc_skb fail!#####\n");
+			return _FAIL;
 		}
 
-		precvpriv->rx_pending_cnt++;
+		tmpaddr = (size_t)precvbuf->pskb->data;
+		alignment = tmpaddr & (RECVBUFF_ALIGN_SZ-1);
+		skb_reserve(precvbuf->pskb, (RECVBUFF_ALIGN_SZ - alignment));
+
+		precvbuf->phead = precvbuf->pskb->head;
+		precvbuf->pdata = precvbuf->pskb->data;
+		precvbuf->ptail = skb_tail_pointer(precvbuf->pskb);
+		precvbuf->pend = skb_end_pointer(precvbuf->pskb);
+		precvbuf->pbuf = precvbuf->pskb->data;
+	} else { /* reuse skb */
+		precvbuf->phead = precvbuf->pskb->head;
+		precvbuf->pdata = precvbuf->pskb->data;
+		precvbuf->ptail = skb_tail_pointer(precvbuf->pskb);
+		precvbuf->pend = skb_end_pointer(precvbuf->pskb);
+		precvbuf->pbuf = precvbuf->pskb->data;
+
+		precvbuf->reuse = false;
+	}
 
-		purb = precvbuf->purb;
+	precvpriv->rx_pending_cnt++;
 
-		/* translate DMA FIFO addr to pipehandle */
-		pipe = ffaddr2pipehdl(pdvobj, addr);
+	purb = precvbuf->purb;
 
-		usb_fill_bulk_urb(purb, pusbd, pipe,
-				  precvbuf->pbuf,
-				  MAX_RECVBUF_SZ,
-				  usb_read_port_complete,
-				  precvbuf);/* context is precvbuf */
+	/* translate DMA FIFO addr to pipehandle */
+	pipe = ffaddr2pipehdl(pdvobj, addr);
 
-		err = usb_submit_urb(purb, GFP_ATOMIC);
-		if ((err) && (err != (-EPERM))) {
-			RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-				 ("cannot submit rx in-token(err=0x%.8x), URB_STATUS =0x%.8x",
-				 err, purb->status));
-			DBG_88E("cannot submit rx in-token(err = 0x%08x),urb_status = %d\n",
-				err, purb->status);
-			ret = _FAIL;
-		}
-	} else {
+	usb_fill_bulk_urb(purb, pusbd, pipe,
+			  precvbuf->pbuf,
+			  MAX_RECVBUF_SZ,
+			  usb_read_port_complete,
+			  precvbuf);/* context is precvbuf */
+
+	err = usb_submit_urb(purb, GFP_ATOMIC);
+	if ((err) && (err != (-EPERM))) {
 		RT_TRACE(_module_hci_ops_os_c_, _drv_err_,
-			 ("usb_read_port:precvbuf ==NULL\n"));
+			 ("cannot submit rx in-token(err=0x%.8x), URB_STATUS =0x%.8x",
+			 err, purb->status));
+		DBG_88E("cannot submit rx in-token(err = 0x%08x),urb_status = %d\n",
+			err, purb->status);
 		ret = _FAIL;
 	}
 
-- 
cgit 


From dc14a626e423f6adc193a677423c259f93a74e57 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 4 Sep 2013 15:56:02 -0500
Subject: staging: r8188eu: Fix smatch warnings in os_dep/ioctl_linux.c

Smatch reports the following:
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:941 rtw_wx_set_pmkid() warn: add some parenthesis here?
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:1042 rtw_wx_get_range() warn: assigning (-78) to unsigned variable 'range->avg_qual.level'
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:2629 rtw_get_ap_info() warn: add some parenthesis here?
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:4043 rtw_rereg_nd_name() warn: add some parenthesis here?
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:4052 rtw_rereg_nd_name() warn: add some parenthesis here?

The warnings calling for adding parentheses all have "if (!memcmp() == true)" and
are fixed by removing the "==true" part.

The warning where a negative number is stored in an unsigned variable is fixed
by biasing the result by 256.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/os_dep/ioctl_linux.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
index cd4100fb3645..8aba69388dbe 100644
--- a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
@@ -938,7 +938,7 @@ static int rtw_wx_set_pmkid(struct net_device *dev,
 	memcpy(strIssueBssid, pPMK->bssid.sa_data, ETH_ALEN);
 	if (pPMK->cmd == IW_PMKSA_ADD) {
 		DBG_88E("[rtw_wx_set_pmkid] IW_PMKSA_ADD!\n");
-		if (!memcmp(strIssueBssid, strZeroMacAddress, ETH_ALEN) == true)
+		if (!memcmp(strIssueBssid, strZeroMacAddress, ETH_ALEN))
 			return ret;
 		else
 			ret = true;
@@ -1039,7 +1039,7 @@ static int rtw_wx_get_range(struct net_device *dev,
 
 	range->avg_qual.qual = 92; /* > 8% missed beacons is 'bad' */
 	/* TODO: Find real 'good' to 'bad' threshol value for RSSI */
-	range->avg_qual.level = 20 + -98;
+	range->avg_qual.level = 178; /* -78 dBm */
 	range->avg_qual.noise = 0;
 	range->avg_qual.updated = 7; /* Updated all three */
 
@@ -2626,7 +2626,7 @@ static int rtw_get_ap_info(struct net_device *dev,
 			return -EINVAL;
 		}
 
-		if (!memcmp(bssid, pnetwork->network.MacAddress, ETH_ALEN) == true) {
+		if (!memcmp(bssid, pnetwork->network.MacAddress, ETH_ALEN)) {
 			/* BSSID match, then check if supporting wpa/wpa2 */
 			DBG_88E("BSSID:%pM\n", (bssid));
 
@@ -4040,7 +4040,7 @@ static int rtw_rereg_nd_name(struct net_device *dev,
 	if (0 != ret)
 		goto exit;
 
-	if (!memcmp(rereg_priv->old_ifname, "disable%d", 9) == true) {
+	if (!memcmp(rereg_priv->old_ifname, "disable%d", 9)) {
 		padapter->ledpriv.bRegUseLed = rereg_priv->old_bRegUseLed;
 		rtw_hal_sw_led_init(padapter);
 		rtw_ips_mode_req(&padapter->pwrctrlpriv, rereg_priv->old_ips_mode);
@@ -4049,7 +4049,7 @@ static int rtw_rereg_nd_name(struct net_device *dev,
 	strncpy(rereg_priv->old_ifname, new_ifname, IFNAMSIZ);
 	rereg_priv->old_ifname[IFNAMSIZ-1] = 0;
 
-	if (!memcmp(new_ifname, "disable%d", 9) == true) {
+	if (!memcmp(new_ifname, "disable%d", 9)) {
 		DBG_88E("%s disable\n", __func__);
 		/*  free network queue for Android's timming issue */
 		rtw_free_network_queue(padapter, true);
-- 
cgit 


From 22fd8b772c93df1073decd1dcb7477c87481ee54 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 4 Sep 2013 15:56:03 -0500
Subject: staging: r8188eu: Fix smatch warning in os_dep/ioctl_linux.c

Smatch reports the following:
drivers/staging/rtl8188eu/os_dep/ioctl_linux.c:4891 set_group_key() warn: missing break? reassigning 'keylen'

As it suggests, there is a missing break statement.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/os_dep/ioctl_linux.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
index 8aba69388dbe..1138ed18780f 100644
--- a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
@@ -4884,7 +4884,6 @@ static int set_group_key(struct adapter *padapter, u8 *key, u8 alg, int keyid)
 	case _TKIP_:
 	case _TKIP_WTMIC_:
 	case _AES_:
-		keylen = 16;
 	default:
 		keylen = 16;
 	}
-- 
cgit 


From f23e3c1e9c9c55afff39a37200e9760692ff16b6 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 4 Sep 2013 15:56:04 -0500
Subject: staging: r8188eu: Fix smatch warnings for hal/rtl8188e_phycfg.c

Smatch reports the following:
drivers/staging/rtl8188eu/hal/rtl8188e_phycfg.c:857 getTxPowerIndex88E() error: buffer overflow 'pHalData->BW20_24G_Diff' 2 <= 2
drivers/staging/rtl8188eu/hal/rtl8188e_phycfg.c:864 getTxPowerIndex88E() error: buffer overflow 'pHalData->BW20_24G_Diff' 2 <= 2

The array in question is large enough to handle RADIO_PATH_X, where X is A or B.
The lines in question refer to RADIO_PATH_C, which is defined as 2.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h | 2 +-
 drivers/staging/rtl8188eu/include/odm.h            | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h b/drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h
index c4769e20a5c3..25cae8147e73 100644
--- a/drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h
+++ b/drivers/staging/rtl8188eu/include/Hal8188EPhyCfg.h
@@ -75,7 +75,7 @@ enum rf_radio_path {
 
 #define MAX_PG_GROUP 13
 
-#define	RF_PATH_MAX			2
+#define	RF_PATH_MAX			3
 #define		MAX_RF_PATH		RF_PATH_MAX
 #define		MAX_TX_COUNT		4 /* path numbers */
 
diff --git a/drivers/staging/rtl8188eu/include/odm.h b/drivers/staging/rtl8188eu/include/odm.h
index 2bfe72841921..e3b40f8078f4 100644
--- a/drivers/staging/rtl8188eu/include/odm.h
+++ b/drivers/staging/rtl8188eu/include/odm.h
@@ -950,7 +950,7 @@ struct odm_dm_struct {
 	struct timer_list FastAntTrainingTimer;
 };		/*  DM_Dynamic_Mechanism_Structure */
 
-#define ODM_RF_PATH_MAX 2
+#define ODM_RF_PATH_MAX 3
 
 enum ODM_RF_RADIO_PATH {
 	ODM_RF_PATH_A = 0,   /* Radio Path A */
-- 
cgit 


From 1ad866e7bf1c64238d77aa5e390e90cf7a5c6c41 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 4 Sep 2013 15:56:05 -0500
Subject: staging: r8188eu: Fix smatch warnings in core/rtw_xmit.c

Smatch reports the following:
drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c:1500 hal_EfusePgPacketWriteData() info: ignoring unreachable code.
drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c:2188 Hal_ReadTxPowerInfo88E() error: buffer overflow 'pHalData->Index24G_CCK_Base[rfPath]' 14 <= 14
drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c:2190 Hal_ReadTxPowerInfo88E() error: buffer overflow 'pHalData->Index24G_BW40_Base[rfPath]' 14 <= 14
drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c:2196 Hal_ReadTxPowerInfo88E() error: buffer overflow 'pHalData->Index24G_CCK_Base[rfPath]' 14 <= 14
drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c:2197 Hal_ReadTxPowerInfo88E() error: buffer overflow 'pHalData->Index24G_BW40_Base[rfPath]' 14 <= 14

The first of these is trivial. The rest are due to an off-by-one error
in a loop over the channels.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c b/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c
index 292ba62d722f..390ab39591e6 100644
--- a/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c
+++ b/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c
@@ -1479,7 +1479,6 @@ static bool hal_EfusePgPacketWrite1ByteHeader(struct adapter *pAdapter, u8 efuse
 
 static bool hal_EfusePgPacketWriteData(struct adapter *pAdapter, u8 efuseType, u16 *pAddr, struct pgpkt *pTargetPkt, bool bPseudoTest)
 {
-	bool bRet = false;
 	u16	efuse_addr = *pAddr;
 	u8 badworden = 0;
 	u32	PgWriteSuccess = 0;
@@ -1497,7 +1496,6 @@ static bool hal_EfusePgPacketWriteData(struct adapter *pAdapter, u8 efuseType, u
 		else
 			return true;
 	}
-	return bRet;
 }
 
 static bool
@@ -2182,7 +2180,7 @@ void Hal_ReadTxPowerInfo88E(struct adapter *padapter, u8 *PROMContent, bool Auto
 		pHalData->bTXPowerDataReadFromEEPORM = true;
 
 	for (rfPath = 0; rfPath < pHalData->NumTotalRFPath; rfPath++) {
-		for (ch = 0; ch <= CHANNEL_MAX_NUMBER; ch++) {
+		for (ch = 0; ch < CHANNEL_MAX_NUMBER; ch++) {
 			bIn24G = Hal_GetChnlGroup88E(ch, &group);
 			if (bIn24G) {
 				pHalData->Index24G_CCK_Base[rfPath][ch] = pwrInfo24G.IndexCCK_Base[rfPath][group];
-- 
cgit 


From bdbdc54e186da6b8e8ea98c173f55198b0d337eb Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 4 Sep 2013 15:56:06 -0500
Subject: staging: r8188eu: Fix smatch warnings in odm_HWConfig.c

Smatch reports the following warnings:
drivers/staging/rtl8188eu/hal/odm_HWConfig.c:302 odm_RxPhyStatus92CSeries_Parsing() error: buffer overflow 'pPhyInfo->RxPwr' 2 <= 2
drivers/staging/rtl8188eu/hal/odm_HWConfig.c:319 odm_RxPhyStatus92CSeries_Parsing() error: buffer overflow 'pPhyInfo->RxMIMOSignalStrength' 2 <= 2
drivers/staging/rtl8188eu/hal/odm_HWConfig.c:322 odm_RxPhyStatus92CSeries_Parsing() error: buffer overflow 'pPhyStaRpt->path_rxsnr' 2 <= 2
drivers/staging/rtl8188eu/hal/odm_HWConfig.c:322 odm_RxPhyStatus92CSeries_Parsing() error: buffer overflow 'pPhyInfo->RxSNR' 2 <= 2
drivers/staging/rtl8188eu/hal/odm_HWConfig.c:323 odm_RxPhyStatus92CSeries_Parsing() error: buffer overflow 'pPhyStaRpt->path_rxsnr' 2 <= 2
drivers/staging/rtl8188eu/hal/odm_HWConfig.c:323 odm_RxPhyStatus92CSeries_Parsing() error: buffer overflow 'dm_odm->PhyDbgInfo.RxSNRdB' 2 <= 2

These warnings are again due to the number of radio patchs being increased
to 3 without adjustments to the array sizes.

A duplicate and redundant definition was also removed.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/include/odm.h          | 2 --
 drivers/staging/rtl8188eu/include/odm_HWConfig.h | 4 ++--
 drivers/staging/rtl8188eu/include/rtw_recv.h     | 2 +-
 3 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/rtl8188eu/include/odm.h b/drivers/staging/rtl8188eu/include/odm.h
index e3b40f8078f4..300ca7884bbb 100644
--- a/drivers/staging/rtl8188eu/include/odm.h
+++ b/drivers/staging/rtl8188eu/include/odm.h
@@ -283,8 +283,6 @@ struct odm_rate_adapt {
 
 /*  Declare for common info */
 
-#define MAX_PATH_NUM_92CS	2
-
 struct odm_phy_status_info {
 	u8	RxPWDBAll;
 	u8	SignalQuality;	 /*  in 0-100 index. */
diff --git a/drivers/staging/rtl8188eu/include/odm_HWConfig.h b/drivers/staging/rtl8188eu/include/odm_HWConfig.h
index 63779f5b2a3c..df5272221bad 100644
--- a/drivers/staging/rtl8188eu/include/odm_HWConfig.h
+++ b/drivers/staging/rtl8188eu/include/odm_HWConfig.h
@@ -69,7 +69,7 @@ struct phy_rx_agc_info {
 };
 
 struct phy_status_rpt {
-	struct phy_rx_agc_info path_agc[2];
+	struct phy_rx_agc_info path_agc[3];
 	u8	ch_corr[2];
 	u8	cck_sig_qual_ofdm_pwdb_all;
 	u8	cck_agc_rpt_ofdm_cfosho_a;
@@ -79,7 +79,7 @@ struct phy_status_rpt {
 	u8	path_cfotail[2];
 	u8	pcts_mask[2];
 	s8	stream_rxevm[2];
-	u8	path_rxsnr[2];
+	u8	path_rxsnr[3];
 	u8	noise_power_db_lsb;
 	u8	rsvd_2[3];
 	u8	stream_csi[2];
diff --git a/drivers/staging/rtl8188eu/include/rtw_recv.h b/drivers/staging/rtl8188eu/include/rtw_recv.h
index bae8885c57f9..be9c30c57419 100644
--- a/drivers/staging/rtl8188eu/include/rtw_recv.h
+++ b/drivers/staging/rtl8188eu/include/rtw_recv.h
@@ -83,7 +83,7 @@ struct signal_stat {
 	u32	total_num;		/* num of valid elements */
 	u32	total_val;		/* sum of valid elements */
 };
-#define MAX_PATH_NUM_92CS		2
+#define MAX_PATH_NUM_92CS		3
 struct phy_info {
 	u8	RxPWDBAll;
 	u8	SignalQuality;	 /*  in 0-100 index. */
-- 
cgit 


From 473803650dd7f37d1d520ec112dc12a8d57aaf22 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 4 Sep 2013 15:56:08 -0500
Subject: staging: r8188eu: Fix smatch warning in core/rtw_wlan_util.c

A misplaced _func_exit_ macro leads to the following smatch warning:
drivers/staging/rtl8188eu/core/rtw_wlan_util.c:1105 rtw_check_bcn_info() info: ignoring unreachable code.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/core/rtw_wlan_util.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_wlan_util.c b/drivers/staging/rtl8188eu/core/rtw_wlan_util.c
index e7fd751f4f01..42c46099cb79 100644
--- a/drivers/staging/rtl8188eu/core/rtw_wlan_util.c
+++ b/drivers/staging/rtl8188eu/core/rtw_wlan_util.c
@@ -1096,13 +1096,13 @@ int rtw_check_bcn_info(struct adapter  *Adapter, u8 *pframe, u32 packet_len)
 	}
 
 	kfree(bssid);
+	_func_exit_;
 	return _SUCCESS;
 
 _mismatch:
 	kfree(bssid);
-	return _FAIL;
-
 	_func_exit_;
+	return _FAIL;
 }
 
 void update_beacon_info(struct adapter *padapter, u8 *pframe, uint pkt_len, struct sta_info *psta)
-- 
cgit 


From 937ebbdec50ed1f257277acba99eea4620f908a2 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 4 Sep 2013 15:56:09 -0500
Subject: staging: r8188eu: Fix smatch warning in hal/HalPhyRf_8188e.c

Smatch reported the following warning:
drivers/staging/rtl8188eu/hal/HalPhyRf_8188e.c:1876 PHY_APCalibrate_8188E() info: ignoring unreachable code.

Once the unreachable code was removed, the entire routine was removed, which
led to the warning that phy_APCalibrate_8188E() was not used. It was also deleted
along with some unused defines.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/hal/HalPhyRf_8188e.c     | 423 ---------------------
 drivers/staging/rtl8188eu/include/HalPhyRf_8188e.h |   2 -
 2 files changed, 425 deletions(-)

diff --git a/drivers/staging/rtl8188eu/hal/HalPhyRf_8188e.c b/drivers/staging/rtl8188eu/hal/HalPhyRf_8188e.c
index e4f20da91b43..bb43793fd1ec 100644
--- a/drivers/staging/rtl8188eu/hal/HalPhyRf_8188e.c
+++ b/drivers/staging/rtl8188eu/hal/HalPhyRf_8188e.c
@@ -1276,407 +1276,6 @@ static void phy_LCCalibrate_8188E(struct adapter *adapt, bool is2t)
 	}
 }
 
-/* Analog Pre-distortion calibration */
-#define		APK_BB_REG_NUM	8
-#define		APK_CURVE_REG_NUM 4
-#define		PATH_NUM		2
-
-static void phy_APCalibrate_8188E(struct adapter *adapt, s8 delta, bool is2t)
-{
-	struct hal_data_8188e	*pHalData = GET_HAL_DATA(adapt);
-	struct odm_dm_struct *dm_odm = &pHalData->odmpriv;
-	u32 regD[PATH_NUM];
-	u32 tmpreg, index, offset,  apkbound;
-	u8 path, i, pathbound = PATH_NUM;
-	u32 BB_backup[APK_BB_REG_NUM];
-	u32 BB_REG[APK_BB_REG_NUM] = {
-		rFPGA1_TxBlock, 	rOFDM0_TRxPathEnable,
-		rFPGA0_RFMOD, rOFDM0_TRMuxPar,
-		rFPGA0_XCD_RFInterfaceSW, rFPGA0_XAB_RFInterfaceSW,
-		rFPGA0_XA_RFInterfaceOE, rFPGA0_XB_RFInterfaceOE	};
-	u32 BB_AP_MODE[APK_BB_REG_NUM] = {
-		0x00000020, 0x00a05430, 0x02040000,
-		0x000800e4, 0x00204000 };
-	u32 BB_normal_AP_MODE[APK_BB_REG_NUM] = {
-		0x00000020, 0x00a05430, 0x02040000,
-		0x000800e4, 0x22204000 };
-
-	u32 AFE_backup[IQK_ADDA_REG_NUM];
-	u32 AFE_REG[IQK_ADDA_REG_NUM] = {
-		rFPGA0_XCD_SwitchControl, rBlue_Tooth,
-		rRx_Wait_CCA, 	rTx_CCK_RFON,
-		rTx_CCK_BBON, rTx_OFDM_RFON,
-		rTx_OFDM_BBON, rTx_To_Rx,
-		rTx_To_Tx, 	rRx_CCK,
-		rRx_OFDM, 	rRx_Wait_RIFS,
-		rRx_TO_Rx, 	rStandby,
-		rSleep, 			rPMPD_ANAEN };
-
-	u32 MAC_backup[IQK_MAC_REG_NUM];
-	u32 MAC_REG[IQK_MAC_REG_NUM] = {
-		REG_TXPAUSE, 	REG_BCN_CTRL,
-		REG_BCN_CTRL_1, REG_GPIO_MUXCFG};
-
-	u32 APK_RF_init_value[PATH_NUM][APK_BB_REG_NUM] = {
-		{0x0852c, 0x1852c, 0x5852c, 0x1852c, 0x5852c},
-		{0x2852e, 0x0852e, 0x3852e, 0x0852e, 0x0852e}
-	};
-
-	u32 APK_normal_RF_init_value[PATH_NUM][APK_BB_REG_NUM] = {
-		{0x0852c, 0x0a52c, 0x3a52c, 0x5a52c, 0x5a52c}, /* path settings equal to path b settings */
-		{0x0852c, 0x0a52c, 0x5a52c, 0x5a52c, 0x5a52c}
-	};
-
-	u32 APK_RF_value_0[PATH_NUM][APK_BB_REG_NUM] = {
-		{0x52019, 0x52014, 0x52013, 0x5200f, 0x5208d},
-		{0x5201a, 0x52019, 0x52016, 0x52033, 0x52050}
-	};
-
-	u32 APK_normal_RF_value_0[PATH_NUM][APK_BB_REG_NUM] = {
-		{0x52019, 0x52017, 0x52010, 0x5200d, 0x5206a}, /* path settings equal to path b settings */
-		{0x52019, 0x52017, 0x52010, 0x5200d, 0x5206a}
-	};
-
-	u32 AFE_on_off[PATH_NUM] = {
-		0x04db25a4, 0x0b1b25a4};	/* path A on path B off / path A off path B on */
-
-	u32 APK_offset[PATH_NUM] = {
-		rConfig_AntA, rConfig_AntB};
-
-	u32 APK_normal_offset[PATH_NUM] = {
-		rConfig_Pmpd_AntA, rConfig_Pmpd_AntB};
-
-	u32 APK_value[PATH_NUM] = {
-		0x92fc0000, 0x12fc0000};
-
-	u32 APK_normal_value[PATH_NUM] = {
-		0x92680000, 0x12680000};
-
-	s8 APK_delta_mapping[APK_BB_REG_NUM][13] = {
-		{-4, -3, -2, -2, -1, -1, 0, 1, 2, 3, 4, 5, 6},
-		{-4, -3, -2, -2, -1, -1, 0, 1, 2, 3, 4, 5, 6},
-		{-6, -4, -2, -2, -1, -1, 0, 1, 2, 3, 4, 5, 6},
-		{-1, -1, -1, -1, -1, -1, 0, 1, 2, 3, 4, 5, 6},
-		{-11, -9, -7, -5, -3, -1, 0, 0, 0, 0, 0, 0, 0}
-	};
-
-	u32 APK_normal_setting_value_1[13] = {
-		0x01017018, 0xf7ed8f84, 0x1b1a1816, 0x2522201e, 0x322e2b28,
-		0x433f3a36, 0x5b544e49, 0x7b726a62, 0xa69a8f84, 0xdfcfc0b3,
-		0x12680000, 0x00880000, 0x00880000
-	};
-
-	u32 APK_normal_setting_value_2[16] = {
-		0x01c7021d, 0x01670183, 0x01000123, 0x00bf00e2, 0x008d00a3,
-		0x0068007b, 0x004d0059, 0x003a0042, 0x002b0031, 0x001f0025,
-		0x0017001b, 0x00110014, 0x000c000f, 0x0009000b, 0x00070008,
-		0x00050006
-	};
-
-	u32 APK_result[PATH_NUM][APK_BB_REG_NUM];	/* val_1_1a, val_1_2a, val_2a, val_3a, val_4a */
-	s32 BB_offset, delta_V, delta_offset;
-
-	if (*(dm_odm->mp_mode) == 1) {
-		struct mpt_context *pMptCtx = &(adapt->mppriv.MptCtx);
-		pMptCtx->APK_bound[0] = 45;
-		pMptCtx->APK_bound[1] = 52;
-	}
-
-	ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD, ("==>phy_APCalibrate_8188E() delta %d\n", delta));
-	ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD,  ("AP Calibration for %s\n", (is2t ? "2T2R" : "1T1R")));
-	if (!is2t)
-		pathbound = 1;
-
-	/* 2 FOR NORMAL CHIP SETTINGS */
-
-/*  Temporarily do not allow normal driver to do the following settings
- *  because these offset and value will cause RF internal PA to be
- *  unpredictably disabled by HW, such that RF Tx signal  will disappear
- *  after disable/enable card many times on 88CU. RF SD and DD have not
- *  find the root cause, so we remove these actions temporarily.
- */
-	if (*(dm_odm->mp_mode) != 1)
-		return;
-	/* settings adjust for normal chip */
-	for (index = 0; index < PATH_NUM; index++) {
-		APK_offset[index] = APK_normal_offset[index];
-		APK_value[index] = APK_normal_value[index];
-		AFE_on_off[index] = 0x6fdb25a4;
-	}
-
-	for (index = 0; index < APK_BB_REG_NUM; index++) {
-		for (path = 0; path < pathbound; path++) {
-			APK_RF_init_value[path][index] = APK_normal_RF_init_value[path][index];
-			APK_RF_value_0[path][index] = APK_normal_RF_value_0[path][index];
-		}
-		BB_AP_MODE[index] = BB_normal_AP_MODE[index];
-	}
-
-	apkbound = 6;
-
-	/* save BB default value */
-	for (index = 0; index < APK_BB_REG_NUM; index++) {
-		if (index == 0)		/* skip */
-			continue;
-		BB_backup[index] = ODM_GetBBReg(dm_odm, BB_REG[index], bMaskDWord);
-	}
-
-	/* save MAC default value */
-	_PHY_SaveMACRegisters(adapt, MAC_REG, MAC_backup);
-
-	/* save AFE default value */
-	_PHY_SaveADDARegisters(adapt, AFE_REG, AFE_backup, IQK_ADDA_REG_NUM);
-
-	for (path = 0; path < pathbound; path++) {
-		if (path == RF_PATH_A) {
-			/* path A APK */
-			/* load APK setting */
-			/* path-A */
-			offset = rPdp_AntA;
-			for (index = 0; index < 11; index++) {
-				ODM_SetBBReg(dm_odm, offset, bMaskDWord, APK_normal_setting_value_1[index]);
-				ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD,
-					     ("phy_APCalibrate_8188E() offset 0x%x value 0x%x\n",
-					     offset, ODM_GetBBReg(dm_odm, offset, bMaskDWord)));
-				offset += 0x04;
-			}
-
-			ODM_SetBBReg(dm_odm, rConfig_Pmpd_AntB, bMaskDWord, 0x12680000);
-
-			offset = rConfig_AntA;
-			for (; index < 13; index++) {
-				ODM_SetBBReg(dm_odm, offset, bMaskDWord, APK_normal_setting_value_1[index]);
-				ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD,
-					     ("phy_APCalibrate_8188E() offset 0x%x value 0x%x\n",
-					     offset, ODM_GetBBReg(dm_odm, offset, bMaskDWord)));
-				offset += 0x04;
-			}
-
-			/* page-B1 */
-			ODM_SetBBReg(dm_odm, rFPGA0_IQK, bMaskDWord, 0x40000000);
-
-			/* path A */
-			offset = rPdp_AntA;
-			for (index = 0; index < 16; index++) {
-				ODM_SetBBReg(dm_odm, offset, bMaskDWord, APK_normal_setting_value_2[index]);
-				ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD,
-					     ("phy_APCalibrate_8188E() offset 0x%x value 0x%x\n",
-					     offset, ODM_GetBBReg(dm_odm, offset, bMaskDWord)));
-
-				offset += 0x04;
-			}
-			ODM_SetBBReg(dm_odm,  rFPGA0_IQK, bMaskDWord, 0x00000000);
-		} else if (path == RF_PATH_B) {
-			/* path B APK */
-			/* load APK setting */
-			/* path-B */
-			offset = rPdp_AntB;
-			for (index = 0; index < 10; index++) {
-				ODM_SetBBReg(dm_odm, offset, bMaskDWord, APK_normal_setting_value_1[index]);
-				ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD,
-					     ("phy_APCalibrate_8188E() offset 0x%x value 0x%x\n",
-					     offset, ODM_GetBBReg(dm_odm, offset, bMaskDWord)));
-
-				offset += 0x04;
-			}
-			ODM_SetBBReg(dm_odm, rConfig_Pmpd_AntA, bMaskDWord, 0x12680000);
-			PHY_SetBBReg(adapt, rConfig_Pmpd_AntB, bMaskDWord, 0x12680000);
-
-			offset = rConfig_AntA;
-			index = 11;
-			for (; index < 13; index++) { /* offset 0xb68, 0xb6c */
-				ODM_SetBBReg(dm_odm, offset, bMaskDWord, APK_normal_setting_value_1[index]);
-				ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD,
-					     ("phy_APCalibrate_8188E() offset 0x%x value 0x%x\n",
-					     offset, ODM_GetBBReg(dm_odm, offset, bMaskDWord)));
-				offset += 0x04;
-			}
-
-			/* page-B1 */
-			ODM_SetBBReg(dm_odm, rFPGA0_IQK, bMaskDWord, 0x40000000);
-
-			/* path B */
-			offset = 0xb60;
-			for (index = 0; index < 16; index++) {
-				ODM_SetBBReg(dm_odm, offset, bMaskDWord, APK_normal_setting_value_2[index]);
-				ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD,
-					     ("phy_APCalibrate_8188E() offset 0x%x value 0x%x\n",
-					     offset, ODM_GetBBReg(dm_odm, offset, bMaskDWord)));
-
-				offset += 0x04;
-			}
-			ODM_SetBBReg(dm_odm, rFPGA0_IQK, bMaskDWord, 0);
-		}
-
-		/* save RF default value */
-		regD[path] = PHY_QueryRFReg(adapt, path, RF_TXBIAS_A, bMaskDWord);
-
-		/* Path A AFE all on, path B AFE All off or vise versa */
-		for (index = 0; index < IQK_ADDA_REG_NUM; index++)
-			ODM_SetBBReg(dm_odm, AFE_REG[index], bMaskDWord, AFE_on_off[path]);
-		ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD,
-			     ("phy_APCalibrate_8188E() offset 0xe70 %x\n",
-			     ODM_GetBBReg(dm_odm, rRx_Wait_CCA, bMaskDWord)));
-
-		/* BB to AP mode */
-		if (path == 0) {
-			for (index = 0; index < APK_BB_REG_NUM; index++) {
-				if (index == 0)		/* skip */
-					continue;
-				else if (index < 5)
-				ODM_SetBBReg(dm_odm, BB_REG[index], bMaskDWord, BB_AP_MODE[index]);
-				else if (BB_REG[index] == 0x870)
-					ODM_SetBBReg(dm_odm, BB_REG[index], bMaskDWord, BB_backup[index]|BIT10|BIT26);
-				else
-					ODM_SetBBReg(dm_odm, BB_REG[index], BIT10, 0x0);
-			}
-
-			ODM_SetBBReg(dm_odm, rTx_IQK_Tone_A, bMaskDWord, 0x01008c00);
-			ODM_SetBBReg(dm_odm, rRx_IQK_Tone_A, bMaskDWord, 0x01008c00);
-		} else {
-			/* path B */
-			ODM_SetBBReg(dm_odm, rTx_IQK_Tone_B, bMaskDWord, 0x01008c00);
-			ODM_SetBBReg(dm_odm, rRx_IQK_Tone_B, bMaskDWord, 0x01008c00);
-		}
-
-		ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD,
-			     ("phy_APCalibrate_8188E() offset 0x800 %x\n",
-			     ODM_GetBBReg(dm_odm, 0x800, bMaskDWord)));
-
-		/* MAC settings */
-		_PHY_MACSettingCalibration(adapt, MAC_REG, MAC_backup);
-
-		if (path == RF_PATH_A) {
-			/* Path B to standby mode */
-			ODM_SetRFReg(dm_odm, RF_PATH_B, RF_AC, bMaskDWord, 0x10000);
-		} else {
-			/* Path A to standby mode */
-			ODM_SetRFReg(dm_odm, RF_PATH_A, RF_AC, bMaskDWord, 0x10000);
-			ODM_SetRFReg(dm_odm, RF_PATH_A, RF_MODE1, bMaskDWord, 0x1000f);
-			ODM_SetRFReg(dm_odm, RF_PATH_A, RF_MODE2, bMaskDWord, 0x20103);
-		}
-
-		delta_offset = ((delta+14)/2);
-		if (delta_offset < 0)
-			delta_offset = 0;
-		else if (delta_offset > 12)
-			delta_offset = 12;
-
-		/* AP calibration */
-		for (index = 0; index < APK_BB_REG_NUM; index++) {
-			if (index != 1)	/* only DO PA11+PAD01001, AP RF setting */
-				continue;
-
-			tmpreg = APK_RF_init_value[path][index];
-			if (!dm_odm->RFCalibrateInfo.bAPKThermalMeterIgnore) {
-				BB_offset = (tmpreg & 0xF0000) >> 16;
-
-				if (!(tmpreg & BIT15)) /* sign bit 0 */
-					BB_offset = -BB_offset;
-
-				delta_V = APK_delta_mapping[index][delta_offset];
-
-				BB_offset += delta_V;
-
-				ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD,
-					     ("phy_APCalibrate_8188E() APK index %d tmpreg 0x%x delta_V %d delta_offset %d\n",
-					     index, tmpreg, delta_V, delta_offset));
-
-				if (BB_offset < 0) {
-					tmpreg = tmpreg & (~BIT15);
-					BB_offset = -BB_offset;
-				} else {
-					tmpreg = tmpreg | BIT15;
-				}
-				tmpreg = (tmpreg & 0xFFF0FFFF) | (BB_offset << 16);
-			}
-
-			ODM_SetRFReg(dm_odm, path, RF_IPA_A, bMaskDWord, 0x8992e);
-			ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD, ("phy_APCalibrate_8188E() offset 0xc %x\n", PHY_QueryRFReg(adapt, path, RF_IPA_A, bMaskDWord)));
-			ODM_SetRFReg(dm_odm, path, RF_AC, bMaskDWord, APK_RF_value_0[path][index]);
-			ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD,  ("phy_APCalibrate_8188E() offset 0x0 %x\n", PHY_QueryRFReg(adapt, path, RF_AC, bMaskDWord)));
-			ODM_SetRFReg(dm_odm, path, RF_TXBIAS_A, bMaskDWord, tmpreg);
-			ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD, ("phy_APCalibrate_8188E() offset 0xd %x\n", PHY_QueryRFReg(adapt, path, RF_TXBIAS_A, bMaskDWord)));
-			/*  PA11+PAD01111, one shot */
-			i = 0;
-			do {
-				ODM_SetBBReg(dm_odm, rFPGA0_IQK, bMaskDWord, 0x80000000);
-				ODM_SetBBReg(dm_odm, APK_offset[path], bMaskDWord, APK_value[0]);
-				ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD, ("phy_APCalibrate_8188E() offset 0x%x value 0x%x\n", APK_offset[path], ODM_GetBBReg(dm_odm, APK_offset[path], bMaskDWord)));
-				ODM_delay_ms(3);
-				ODM_SetBBReg(dm_odm, APK_offset[path], bMaskDWord, APK_value[1]);
-				ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD, ("phy_APCalibrate_8188E() offset 0x%x value 0x%x\n", APK_offset[path], ODM_GetBBReg(dm_odm, APK_offset[path], bMaskDWord)));
-
-				ODM_delay_ms(20);
-				ODM_SetBBReg(dm_odm, rFPGA0_IQK, bMaskDWord, 0x00000000);
-
-				if (path == RF_PATH_A)
-					tmpreg = ODM_GetBBReg(dm_odm, rAPK, 0x03E00000);
-				else
-					tmpreg = ODM_GetBBReg(dm_odm, rAPK, 0xF8000000);
-				ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD, ("phy_APCalibrate_8188E() offset 0xbd8[25:21] %x\n", tmpreg));
-
-				i++;
-			} while (tmpreg > apkbound && i < 4);
-
-			APK_result[path][index] = tmpreg;
-		}
-	}
-
-	/* reload MAC default value */
-	_PHY_ReloadMACRegisters(adapt, MAC_REG, MAC_backup);
-
-	/* reload BB default value */
-	for (index = 0; index < APK_BB_REG_NUM; index++) {
-		if (index == 0)		/* skip */
-			continue;
-		ODM_SetBBReg(dm_odm, BB_REG[index], bMaskDWord, BB_backup[index]);
-	}
-
-	/* reload AFE default value */
-	reload_adda_reg(adapt, AFE_REG, AFE_backup, IQK_ADDA_REG_NUM);
-
-	/* reload RF path default value */
-	for (path = 0; path < pathbound; path++) {
-		ODM_SetRFReg(dm_odm, path, 0xd, bMaskDWord, regD[path]);
-		if (path == RF_PATH_B) {
-			ODM_SetRFReg(dm_odm, RF_PATH_A, RF_MODE1, bMaskDWord, 0x1000f);
-			ODM_SetRFReg(dm_odm, RF_PATH_A, RF_MODE2, bMaskDWord, 0x20101);
-		}
-
-		/* note no index == 0 */
-		if (APK_result[path][1] > 6)
-			APK_result[path][1] = 6;
-		ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD, ("apk path %d result %d 0x%x \t", path, 1, APK_result[path][1]));
-	}
-
-	ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD,  ("\n"));
-
-	for (path = 0; path < pathbound; path++) {
-		ODM_SetRFReg(dm_odm, path, 0x3, bMaskDWord,
-			     ((APK_result[path][1] << 15) | (APK_result[path][1] << 10) | (APK_result[path][1] << 5) | APK_result[path][1]));
-		if (path == RF_PATH_A)
-			ODM_SetRFReg(dm_odm, path, 0x4, bMaskDWord,
-				     ((APK_result[path][1] << 15) | (APK_result[path][1] << 10) | (0x00 << 5) | 0x05));
-		else
-			ODM_SetRFReg(dm_odm, path, 0x4, bMaskDWord,
-				     ((APK_result[path][1] << 15) | (APK_result[path][1] << 10) | (0x02 << 5) | 0x05));
-		ODM_SetRFReg(dm_odm, path, RF_BS_PA_APSET_G9_G11, bMaskDWord,
-			     ((0x08 << 15) | (0x08 << 10) | (0x08 << 5) | 0x08));
-	}
-
-	dm_odm->RFCalibrateInfo.bAPKdone = true;
-
-	ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD, ("<==phy_APCalibrate_8188E()\n"));
-}
-
-#define		DP_BB_REG_NUM		7
-#define		DP_RF_REG_NUM		1
-#define		DP_RETRY_LIMIT		10
-#define		DP_PATH_NUM		2
-#define		DP_DPK_NUM			3
-#define		DP_DPK_VALUE_NUM	2
-
 void PHY_IQCalibrate_8188E(struct adapter *adapt, bool recovery)
 {
 	struct hal_data_8188e	*pHalData = GET_HAL_DATA(adapt);
@@ -1867,28 +1466,6 @@ void PHY_LCCalibrate_8188E(struct adapter *adapt)
 		     ("LCK:Finish!!!interface %d\n", dm_odm->InterfaceIndex));
 }
 
-void PHY_APCalibrate_8188E(struct adapter *adapt, s8 delta)
-{
-	struct hal_data_8188e	*pHalData = GET_HAL_DATA(adapt);
-	struct odm_dm_struct *dm_odm = &pHalData->odmpriv;
-
-	return;
-	if (!(dm_odm->SupportAbility & ODM_RF_CALIBRATION))
-		return;
-
-#if FOR_BRAZIL_PRETEST != 1
-	if (dm_odm->RFCalibrateInfo.bAPKdone)
-#endif
-		return;
-
-	if (dm_odm->RFType == ODM_2T2R) {
-		phy_APCalibrate_8188E(adapt, delta, true);
-	} else {
-		/*  For 88C 1T1R */
-		phy_APCalibrate_8188E(adapt, delta, false);
-	}
-}
-
 static void phy_setrfpathswitch_8188e(struct adapter *adapt, bool main, bool is2t)
 {
 	struct hal_data_8188e	*pHalData = GET_HAL_DATA(adapt);
diff --git a/drivers/staging/rtl8188eu/include/HalPhyRf_8188e.h b/drivers/staging/rtl8188eu/include/HalPhyRf_8188e.h
index fa583f248320..287e9f9eae4a 100644
--- a/drivers/staging/rtl8188eu/include/HalPhyRf_8188e.h
+++ b/drivers/staging/rtl8188eu/include/HalPhyRf_8188e.h
@@ -45,8 +45,6 @@ void PHY_IQCalibrate_8188E(struct adapter *Adapter, bool ReCovery);
 void PHY_LCCalibrate_8188E(struct adapter *pAdapter);
 
 /*  AP calibrate */
-void PHY_APCalibrate_8188E(struct adapter *pAdapter, s8 delta);
-
 void PHY_DigitalPredistortion_8188E(struct adapter *pAdapter);
 
 void _PHY_SaveADDARegisters(struct adapter *pAdapter, u32 *ADDAReg,
-- 
cgit 


From 9840093505bffa3f153bda2ac4046b868486150d Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 4 Sep 2013 15:56:10 -0500
Subject: staging: r8188eu: Fix smatch warnings in core/rtw_recv.c

Smatch reports the following:
drivers/staging/rtl8188eu/core/rtw_recv.c:211 rtw_free_recvframe() warn: variable dereferenced before check 'precvframe' (see line 207)
drivers/staging/rtl8188eu/core/rtw_recv.c:1803 amsdu_to_msdu() warn: variable dereferenced before check 'sub_skb' (see line 1784)

The code was rearranged to eliminate the dereference before the check.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/core/rtw_recv.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_recv.c b/drivers/staging/rtl8188eu/core/rtw_recv.c
index 55851997f21c..ba8e53463d10 100644
--- a/drivers/staging/rtl8188eu/core/rtw_recv.c
+++ b/drivers/staging/rtl8188eu/core/rtw_recv.c
@@ -204,12 +204,14 @@ void rtw_init_recvframe(union recv_frame *precvframe, struct recv_priv *precvpri
 int rtw_free_recvframe(union recv_frame *precvframe, struct __queue *pfree_recv_queue)
 {
 	unsigned long irqL;
-	struct adapter *padapter = precvframe->u.hdr.adapter;
-	struct recv_priv *precvpriv = &padapter->recvpriv;
+	struct adapter *padapter;
+	struct recv_priv *precvpriv;
 
 _func_enter_;
 	if (!precvframe)
 		return _FAIL;
+	padapter = precvframe->u.hdr.adapter;
+	precvpriv = &padapter->recvpriv;
 	if (precvframe->u.hdr.pkt) {
 		dev_kfree_skb_any(precvframe->u.hdr.pkt);/* free skb by driver */
 		precvframe->u.hdr.pkt = NULL;
@@ -1799,16 +1801,14 @@ static int amsdu_to_msdu(struct adapter *padapter, union recv_frame *prframe)
 			memcpy(skb_push(sub_skb, ETH_ALEN), pattrib->dst, ETH_ALEN);
 		}
 
-		/* Indicat the packets to upper layer */
-		if (sub_skb) {
-			/*  Insert NAT2.5 RX here! */
-			sub_skb->protocol = eth_type_trans(sub_skb, padapter->pnetdev);
-			sub_skb->dev = padapter->pnetdev;
+		/* Indicate the packets to upper layer */
+		/*  Insert NAT2.5 RX here! */
+		sub_skb->protocol = eth_type_trans(sub_skb, padapter->pnetdev);
+		sub_skb->dev = padapter->pnetdev;
 
-			sub_skb->ip_summed = CHECKSUM_NONE;
+		sub_skb->ip_summed = CHECKSUM_NONE;
 
-			netif_rx(sub_skb);
-		}
+		netif_rx(sub_skb);
 	}
 
 exit:
-- 
cgit 


From da6c37392c92efdda7b887c7e85a33324e7e5eda Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 4 Sep 2013 15:56:11 -0500
Subject: staging: r8188eu: Fix smatch warning in rtl8188eu/core/rtw_xmit.c

Smatch reports the following:
  CHECK   drivers/staging/rtl8188eu/core/rtw_xmit.c
drivers/staging/rtl8188eu/core/rtw_xmit.c:1570 dequeue_one_xmitframe() info: ignoring unreachable code.

This code uses a while construction that has an unconditional break. This part
of the code was restructured to use an if statement and the dead code was
removed.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/core/rtw_xmit.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_xmit.c b/drivers/staging/rtl8188eu/core/rtw_xmit.c
index bb5cd95c564e..a594e51d2e1c 100644
--- a/drivers/staging/rtl8188eu/core/rtw_xmit.c
+++ b/drivers/staging/rtl8188eu/core/rtw_xmit.c
@@ -1556,7 +1556,7 @@ static struct xmit_frame *dequeue_one_xmitframe(struct xmit_priv *pxmitpriv, str
 	xmitframe_phead = get_list_head(pframe_queue);
 	xmitframe_plist = get_next(xmitframe_phead);
 
-	while (!rtw_end_of_queue_search(xmitframe_phead, xmitframe_plist)) {
+	if (!rtw_end_of_queue_search(xmitframe_phead, xmitframe_plist)) {
 		pxmitframe = LIST_CONTAINOR(xmitframe_plist, struct xmit_frame, list);
 
 		xmitframe_plist = get_next(xmitframe_plist);
@@ -1564,12 +1564,7 @@ static struct xmit_frame *dequeue_one_xmitframe(struct xmit_priv *pxmitpriv, str
 		rtw_list_delete(&pxmitframe->list);
 
 		ptxservq->qcnt--;
-
-		break;
-
-		pxmitframe = NULL;
 	}
-
 	return pxmitframe;
 }
 
-- 
cgit 


From ad6343a49ee637de6352af1dc519067b9591b710 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Sun, 1 Sep 2013 19:55:58 +0100
Subject: Staging: speakup: Add dependencies for ISA card drivers

Several speakup drivers are for ISA cards and are useless on systems
without ISA slots.  Make them depend on ISA || COMPILE_TEST.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/speakup/Kconfig | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/staging/speakup/Kconfig b/drivers/staging/speakup/Kconfig
index 8c3e7a60a9be..efd6f4560d3e 100644
--- a/drivers/staging/speakup/Kconfig
+++ b/drivers/staging/speakup/Kconfig
@@ -51,6 +51,7 @@ config SPEAKUP_SYNTH_ACNTSA
 
 config SPEAKUP_SYNTH_ACNTPC
 	tristate "Accent PC synthesizer support"
+	depends on ISA || COMPILE_TEST
 	---help---
 		This is the Speakup driver for the accent pc
 		synthesizer.  You can say y to build it into the kernel,
@@ -102,6 +103,7 @@ config SPEAKUP_SYNTH_DECEXT
 
 config SPEAKUP_SYNTH_DECPC
 	depends on m
+	depends on ISA || COMPILE_TEST
 	tristate "DECtalk PC (big ISA card) synthesizer support"
 	---help---
 
@@ -124,6 +126,7 @@ config SPEAKUP_SYNTH_DECPC
 
 config SPEAKUP_SYNTH_DTLK
 	tristate "DoubleTalk PC synthesizer support"
+	depends on ISA || COMPILE_TEST
 	---help---
 
 		This is the Speakup driver for the internal DoubleTalk
@@ -134,6 +137,7 @@ config SPEAKUP_SYNTH_DTLK
 
 config SPEAKUP_SYNTH_KEYPC
 	tristate "Keynote Gold PC synthesizer support"
+	depends on ISA || COMPILE_TEST
 	---help---
 
 		This is the Speakup driver for the Keynote Gold
-- 
cgit 


From b71600bb4bc8591c9bc4234cc12b51d521444b1c Mon Sep 17 00:00:00 2001
From: "Raphael S.Carvalho" <raphael.scarv@gmail.com>
Date: Mon, 2 Sep 2013 19:20:18 -0300
Subject: staging/speakup/kobjects.c: Code improvement.

Well, there is no need to use strcmp since we can make a test of similar semantic by using the var_id field of param.
I moved the test into the VAR_NUM:VAR_TIME case since VAR_STRING will never be "voice".

spk_xlate isn't used anymore (in line 628), then there is no difference between using cp and buf in VAR_STRING case.
Besides, buf is a const char and those changes remove one uneeded line.

I created the function spk_reset_default_value because it clarifies the code and allows code reusing.

Signed-off-by: Raphael S.Carvalho <raphael.scarv@gmail.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/speakup/kobjects.c | 69 +++++++++++++++++++++-----------------
 1 file changed, 38 insertions(+), 31 deletions(-)

diff --git a/drivers/staging/speakup/kobjects.c b/drivers/staging/speakup/kobjects.c
index 51bdea3a5bea..61a3f7a5eb6b 100644
--- a/drivers/staging/speakup/kobjects.c
+++ b/drivers/staging/speakup/kobjects.c
@@ -585,6 +585,25 @@ ssize_t spk_var_show(struct kobject *kobj, struct kobj_attribute *attr,
 }
 EXPORT_SYMBOL_GPL(spk_var_show);
 
+/*
+ * Used to reset either default_pitch or default_vol.
+ */
+static inline void spk_reset_default_value(char *header_name,
+					int *synth_default_value, int idx)
+{
+	struct st_var_header *param;
+
+	if (synth && synth_default_value) {
+		param = spk_var_header_by_name(header_name);
+		if (param)  {
+			spk_set_num_var(synth_default_value[idx],
+					param, E_NEW_DEFAULT);
+			spk_set_num_var(0, param, E_DEFAULT);
+			pr_info("%s reset to default value\n", param->name);
+		}
+	}
+}
+
 /*
  * This function is called when a user echos a value to one of the
  * variable parameters.
@@ -624,56 +643,44 @@ ssize_t spk_var_store(struct kobject *kobj, struct kobj_attribute *attr,
 		if (ret == -ERANGE) {
 			var_data = param->data;
 			pr_warn("value for %s out of range, expect %d to %d\n",
-				attr->attr.name,
+				param->name,
 				var_data->u.n.low, var_data->u.n.high);
 		}
+
+	       /*
+		* If voice was just changed, we might need to reset our default
+		* pitch and volume.
+		*/
+		if (param->var_id == VOICE) {
+			spk_reset_default_value("pitch", synth->default_pitch,
+				value);
+			spk_reset_default_value("vol", synth->default_vol,
+				value);
+		}
 		break;
 	case VAR_STRING:
-		len = strlen(buf);
-		if ((len >= 1) && (buf[len - 1] == '\n'))
+		len = strlen(cp);
+		if ((len >= 1) && (cp[len - 1] == '\n'))
 			--len;
-		if ((len >= 2) && (buf[0] == '"') && (buf[len - 1] == '"')) {
-			++buf;
+		if ((len >= 2) && (cp[0] == '"') && (cp[len - 1] == '"')) {
+			++cp;
 			len -= 2;
 		}
-		cp = (char *) buf;
 		cp[len] = '\0';
-		ret = spk_set_string_var(buf, param, len);
+		ret = spk_set_string_var(cp, param, len);
 		if (ret == -E2BIG)
 			pr_warn("value too long for %s\n",
-					attr->attr.name);
+					param->name);
 		break;
 	default:
 		pr_warn("%s unknown type %d\n",
 			param->name, (int)param->var_type);
 	break;
 	}
-	/*
-	 * If voice was just changed, we might need to reset our default
-	 * pitch and volume.
-	 */
-	if (strcmp(attr->attr.name, "voice") == 0) {
-		if (synth && synth->default_pitch) {
-			param = spk_var_header_by_name("pitch");
-			if (param)  {
-				spk_set_num_var(synth->default_pitch[value],
-						param, E_NEW_DEFAULT);
-				spk_set_num_var(0, param, E_DEFAULT);
-			}
-		}
-		if (synth && synth->default_vol) {
-			param = spk_var_header_by_name("vol");
-			if (param)  {
-				spk_set_num_var(synth->default_vol[value],
-						param, E_NEW_DEFAULT);
-				spk_set_num_var(0, param, E_DEFAULT);
-			}
-		}
-	}
 	spin_unlock_irqrestore(&speakup_info.spinlock, flags);
 
 	if (ret == -ERESTART)
-		pr_info("%s reset to default value\n", attr->attr.name);
+		pr_info("%s reset to default value\n", param->name);
 	return count;
 }
 EXPORT_SYMBOL_GPL(spk_var_store);
-- 
cgit 


From faf487b62059cd837c393dd42b30996da49fc157 Mon Sep 17 00:00:00 2001
From: Christopher Brannon <chris@the-brannons.com>
Date: Wed, 11 Sep 2013 10:05:27 -0700
Subject: staging: speakup: kobjects.c: Use correct values when changing voice.

When a new voice is selected, we set volume and pitch appropriate for
the voice.  We need to use the numeric index corresponding to the
voice when indexing into the volume and pitch tables, rather than
the raw user input that was used to select the voice.
Note that using the raw input can also lead to an invalid memory read
in the case of invalid or malicious user input.

Signed-off-by: Christopher Brannon <chris@the-brannons.com>
Acked-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/speakup/kobjects.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/speakup/kobjects.c b/drivers/staging/speakup/kobjects.c
index 61a3f7a5eb6b..f31afa2cffb7 100644
--- a/drivers/staging/speakup/kobjects.c
+++ b/drivers/staging/speakup/kobjects.c
@@ -651,7 +651,10 @@ ssize_t spk_var_store(struct kobject *kobj, struct kobj_attribute *attr,
 		* If voice was just changed, we might need to reset our default
 		* pitch and volume.
 		*/
-		if (param->var_id == VOICE) {
+		if (param->var_id == VOICE && synth &&
+		    (ret == 0 || ret == -ERESTART)) {
+			var_data = param->data;
+			value = var_data->u.n.value;
 			spk_reset_default_value("pitch", synth->default_pitch,
 				value);
 			spk_reset_default_value("vol", synth->default_vol,
-- 
cgit 


From 3e67cdf54b2159ca99ecb24051601223147dd153 Mon Sep 17 00:00:00 2001
From: Jon Bernard <jbernard@tuxion.com>
Date: Thu, 12 Sep 2013 20:04:33 -0400
Subject: Staging: lustre: fix assignment in if condition in fsfilt.c

This is a patch to the fsfilt.c file that fixes up three assignment in if
condition errors found by the checkpatch.pl tool.

Signed-off-by: Jon Bernard <jbernard@tuxion.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/lvfs/fsfilt.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/lustre/lustre/lvfs/fsfilt.c b/drivers/staging/lustre/lustre/lvfs/fsfilt.c
index e86df7356cb1..1f38dafb0dc2 100644
--- a/drivers/staging/lustre/lustre/lvfs/fsfilt.c
+++ b/drivers/staging/lustre/lustre/lvfs/fsfilt.c
@@ -62,7 +62,8 @@ int fsfilt_register_ops(struct fsfilt_operations *fs_ops)
 	struct fsfilt_operations *found;
 
 	/* lock fsfilt_types list */
-	if ((found = fsfilt_search_type(fs_ops->fs_type))) {
+	found = fsfilt_search_type(fs_ops->fs_type);
+	if (found) {
 		if (found != fs_ops) {
 			CERROR("different operations for type %s\n",
 			       fs_ops->fs_type);
@@ -103,14 +104,16 @@ struct fsfilt_operations *fsfilt_get_ops(const char *type)
 	struct fsfilt_operations *fs_ops;
 
 	/* lock fsfilt_types list */
-	if (!(fs_ops = fsfilt_search_type(type))) {
+	fs_ops = fsfilt_search_type(type);
+	if (!fs_ops) {
 		char name[32];
 		int rc;
 
 		snprintf(name, sizeof(name) - 1, "fsfilt_%s", type);
 		name[sizeof(name) - 1] = '\0';
 
-		if (!(rc = request_module("%s", name))) {
+		rc = request_module("%s", name);
+		if (!rc) {
 			fs_ops = fsfilt_search_type(type);
 			CDEBUG(D_INFO, "Loaded module '%s'\n", name);
 			if (!fs_ops)
-- 
cgit 


From 497aaa5cd877175b34b601b4e7e721b31348fbda Mon Sep 17 00:00:00 2001
From: Jon Bernard <jbernard@tuxion.com>
Date: Thu, 12 Sep 2013 20:04:22 -0400
Subject: Staging: lustre: fix a brace coding style issue in fsfilt.c

This is a patch to the fsfilt.c file that fixes up a brace warning found by the
checkpatch.pl tool.

Signed-off-by: Jon Bernard <jbernard@tuxion.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/lvfs/fsfilt.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/lustre/lustre/lvfs/fsfilt.c b/drivers/staging/lustre/lustre/lvfs/fsfilt.c
index 1f38dafb0dc2..0d6ed69ddb22 100644
--- a/drivers/staging/lustre/lustre/lvfs/fsfilt.c
+++ b/drivers/staging/lustre/lustre/lvfs/fsfilt.c
@@ -50,9 +50,8 @@ static struct fsfilt_operations *fsfilt_search_type(const char *type)
 
 	list_for_each(p, &fsfilt_types) {
 		found = list_entry(p, struct fsfilt_operations, fs_list);
-		if (!strcmp(found->fs_type, type)) {
+		if (!strcmp(found->fs_type, type))
 			return found;
-		}
 	}
 	return NULL;
 }
-- 
cgit 


From 9dbd5fe8b57753c626d04243004278ab07471403 Mon Sep 17 00:00:00 2001
From: Jon Bernard <jbernard@tuxion.com>
Date: Wed, 11 Sep 2013 16:41:53 -0400
Subject: Staging: lustre: fix formatting mistake in Kconfig

Signed-off-by: Jon Bernard <jbernard@tuxion.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lustre/Kconfig b/drivers/staging/lustre/lustre/Kconfig
index 4e898e491860..f94972820db9 100644
--- a/drivers/staging/lustre/lustre/Kconfig
+++ b/drivers/staging/lustre/lustre/Kconfig
@@ -16,7 +16,7 @@ config LUSTRE_FS
 	  this file system support as a module, choose M here: the module will
 	  be called lustre.
 
-	  To mount Lustre file systems , you also need to install the user space
+	  To mount Lustre file systems, you also need to install the user space
 	  mount.lustre and other user space commands which can be found in the
 	  lustre-client package, available from
 	  http://downloads.whamcloud.com/public/lustre/
-- 
cgit 


From 3816a5409ebfcf0b9a0d5f3cc7df0165bb0750d7 Mon Sep 17 00:00:00 2001
From: Jon Bernard <jbernard@tuxion.com>
Date: Fri, 13 Sep 2013 13:29:30 -0400
Subject: Staging: lustre: remove unnecessary braces

This is a patch to the lvfs_lib.c file that removes unnecessary braces from an
if statement found by the checkpatch.pl tool.

Signed-off-by: Jon Bernard <jbernard@tuxion.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/lvfs/lvfs_lib.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/lustre/lustre/lvfs/lvfs_lib.c b/drivers/staging/lustre/lustre/lvfs/lvfs_lib.c
index 97a8be2300dd..b21e40cdacab 100644
--- a/drivers/staging/lustre/lustre/lvfs/lvfs_lib.c
+++ b/drivers/staging/lustre/lustre/lvfs/lvfs_lib.c
@@ -154,11 +154,10 @@ int lprocfs_stats_alloc_one(struct lprocfs_stats *stats, unsigned int cpuid)
 				spin_lock(&stats->ls_lock);
 			if (stats->ls_biggest_alloc_num <= cpuid)
 				stats->ls_biggest_alloc_num = cpuid + 1;
-			if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE) {
+			if (stats->ls_flags & LPROCFS_STATS_FLAG_IRQ_SAFE)
 				spin_unlock_irqrestore(&stats->ls_lock, flags);
-			} else {
+			else
 				spin_unlock(&stats->ls_lock);
-			}
 		}
 		/* initialize the ls_percpu[cpuid] non-zero counter */
 		for (i = 0; i < stats->ls_num; ++i) {
-- 
cgit 


From de2e487f0008f38bf3daab476c6234b1a24c8ddc Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Fri, 13 Sep 2013 09:44:31 +0300
Subject: staging: silicom: introduce bp_dev_get_idx_bsf() and use it

There are two places where duplicate code is located. Moreover, there is a
custom implementation of the sscanf() functionality. This patch makes code
quite simplier and cleaner.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/silicom/bpctl_mod.c | 188 +++++++++---------------------------
 1 file changed, 47 insertions(+), 141 deletions(-)

diff --git a/drivers/staging/silicom/bpctl_mod.c b/drivers/staging/silicom/bpctl_mod.c
index 495272d01348..39dc92a271ab 100644
--- a/drivers/staging/silicom/bpctl_mod.c
+++ b/drivers/staging/silicom/bpctl_mod.c
@@ -1,11 +1,11 @@
 /******************************************************************************/
 /*                                                                            */
-/* Bypass Control utility, Copyright (c) 2005-20011 Silicom                   */
+/* Bypass Control utility, Copyright (c) 2005-2011 Silicom                    */
 /*                                                                            */
 /* This program is free software; you can redistribute it and/or modify       */
 /* it under the terms of the GNU General Public License as published by       */
 /* the Free Software Foundation, located in the file LICENSE.                 */
-/*  Copyright(c) 2007 - 2009 Intel Corporation. All rights reserved.          */
+/* Copyright(c) 2007 - 2009, 2013 Intel Corporation. All rights reserved.     */
 /*                                                                            */
 /*                                                                            */
 /******************************************************************************/
@@ -124,80 +124,60 @@ int bp_proc_create(void);
 int is_bypass_fn(struct bpctl_dev *pbpctl_dev);
 int get_dev_idx_bsf(int bus, int slot, int func);
 
-static unsigned long str_to_hex(char *p);
+static int bp_get_dev_idx_bsf(struct net_device *dev, int *index)
+{
+	struct ethtool_drvinfo drvinfo = {0};
+	char *buf;
+	int bus, slot, func;
+
+	if (dev->ethtool_ops && dev->ethtool_ops->get_drvinfo)
+		dev->ethtool_ops->get_drvinfo(dev, &drvinfo);
+	else
+		return -EOPNOTSUPP;
+
+	if (!drvinfo.bus_info)
+		return -ENODATA;
+	if (!strcmp(drvinfo.bus_info, "N/A"))
+		return -ENODATA;
+
+	buf = strchr(drvinfo.bus_info, ':');
+	if (!buf)
+		return -EINVAL;
+	buf++;
+	if (sscanf(buf, "%x:%x.%x", &bus, &slot, &func) != 3)
+		return -EINVAL;
+
+	*index = get_dev_idx_bsf(bus, slot, func);
+	return 0;
+}
+
 static int bp_device_event(struct notifier_block *unused,
 			   unsigned long event, void *ptr)
 {
 	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
 	static struct bpctl_dev *pbpctl_dev, *pbpctl_dev_m;
 	int dev_num = 0, ret = 0, ret_d = 0, time_left = 0;
+
 	/* printk("BP_PROC_SUPPORT event =%d %s %d\n", event,dev->name, dev->ifindex ); */
 	/* return NOTIFY_DONE; */
 	if (!dev)
 		return NOTIFY_DONE;
-	if (event == NETDEV_REGISTER) {
-		{
-			struct ethtool_drvinfo drvinfo;
-			char cbuf[32];
-			char *buf = NULL;
-			char res[10];
-			int i = 0, ifindex, idx_dev = 0;
-			int bus = 0, slot = 0, func = 0;
-			ifindex = dev->ifindex;
-
-			memset(res, 0, 10);
-			memset(&drvinfo, 0, sizeof(struct ethtool_drvinfo));
-
-			if (dev->ethtool_ops && dev->ethtool_ops->get_drvinfo) {
-				memset(&drvinfo, 0, sizeof(drvinfo));
-				dev->ethtool_ops->get_drvinfo(dev, &drvinfo);
-			} else
-				return NOTIFY_DONE;
-			if (!drvinfo.bus_info)
-				return NOTIFY_DONE;
-			if (!strcmp(drvinfo.bus_info, "N/A"))
-				return NOTIFY_DONE;
-			memcpy(&cbuf, drvinfo.bus_info, 32);
-			buf = &cbuf[0];
 
-			while (*buf++ != ':')
-				;
-			for (i = 0; i < 10; i++, buf++) {
-				if (*buf == ':')
-					break;
-				res[i] = *buf;
-
-			}
-			buf++;
-			bus = str_to_hex(res);
-			memset(res, 0, 10);
-
-			for (i = 0; i < 10; i++, buf++) {
-				if (*buf == '.')
-					break;
-				res[i] = *buf;
-
-			}
-			buf++;
-			slot = str_to_hex(res);
-			func = str_to_hex(buf);
-			idx_dev = get_dev_idx_bsf(bus, slot, func);
-
-			if (idx_dev != -1) {
+	if (event == NETDEV_REGISTER) {
+		int idx_dev;
 
-				bpctl_dev_arr[idx_dev].ifindex = ifindex;
-				bpctl_dev_arr[idx_dev].ndev = dev;
+		if (bp_get_dev_idx_bsf(dev, &idx_dev))
+			return NOTIFY_DONE;
 
-				bypass_proc_remove_dev_sd(&bpctl_dev_arr
-							  [idx_dev]);
-				bypass_proc_create_dev_sd(&bpctl_dev_arr
-							  [idx_dev]);
+		if (idx_dev == -1)
+			return NOTIFY_DONE;
 
-			}
+		bpctl_dev_arr[idx_dev].ifindex = dev->ifindex;
+		bpctl_dev_arr[idx_dev].ndev = dev;
 
-		}
+		bypass_proc_remove_dev_sd(&bpctl_dev_arr[idx_dev]);
+		bypass_proc_create_dev_sd(&bpctl_dev_arr[idx_dev]);
 		return NOTIFY_DONE;
-
 	}
 	if (event == NETDEV_UNREGISTER) {
 		int idx_dev = 0;
@@ -5269,36 +5249,6 @@ int get_dev_idx_bsf(int bus, int slot, int func)
 	return -1;
 }
 
-static void str_low(char *str)
-{
-	int i;
-
-	for (i = 0; i < strlen(str); i++)
-		if ((str[i] >= 65) && (str[i] <= 90))
-			str[i] += 32;
-}
-
-static unsigned long str_to_hex(char *p)
-{
-	unsigned long hex = 0;
-	unsigned long length = strlen(p), shift = 0;
-	unsigned char dig = 0;
-
-	str_low(p);
-	length = strlen(p);
-
-	if (length == 0)
-		return 0;
-
-	do {
-		dig = p[--length];
-		dig = dig < 'a' ? (dig - '0') : (dig - 'a' + 0xa);
-		hex |= (dig << shift);
-		shift += 4;
-	} while (length);
-	return hex;
-}
-
 static int get_dev_idx(int ifindex)
 {
 	int idx_dev = 0;
@@ -5329,70 +5279,26 @@ static struct bpctl_dev *get_dev_idx_p(int ifindex)
 
 static void if_scan_init(void)
 {
-	int idx_dev = 0;
 	struct net_device *dev;
-	int ifindex;
+
 	/* rcu_read_lock(); */
 	/* rtnl_lock();     */
 	/* rcu_read_lock(); */
 
 	for_each_netdev(&init_net, dev) {
+		int idx_dev;
 
-		struct ethtool_drvinfo drvinfo;
-		char cbuf[32];
-		char *buf = NULL;
-		char res[10];
-		int i = 0;
-		int bus = 0, slot = 0, func = 0;
-		ifindex = dev->ifindex;
-
-		memset(res, 0, 10);
-		memset(&drvinfo, 0, sizeof(struct ethtool_drvinfo));
-
-		if (dev->ethtool_ops && dev->ethtool_ops->get_drvinfo) {
-			memset(&drvinfo, 0, sizeof(drvinfo));
-			dev->ethtool_ops->get_drvinfo(dev, &drvinfo);
-		} else
+		if (bp_get_dev_idx_bsf(dev, &idx_dev))
 			continue;
-		if (!strcmp(drvinfo.bus_info, "N/A"))
-			continue;
-		memcpy(&cbuf, drvinfo.bus_info, 32);
-		buf = &cbuf[0];
 
-		while (*buf++ != ':')
-			;
-		for (i = 0; i < 10; i++, buf++) {
-			if (*buf == ':')
-				break;
-			res[i] = *buf;
-
-		}
-		buf++;
-		bus = str_to_hex(res);
-		memset(res, 0, 10);
-
-		for (i = 0; i < 10; i++, buf++) {
-			if (*buf == '.')
-				break;
-			res[i] = *buf;
-
-		}
-		buf++;
-		slot = str_to_hex(res);
-		func = str_to_hex(buf);
-		idx_dev = get_dev_idx_bsf(bus, slot, func);
-
-		if (idx_dev != -1) {
-
-			bpctl_dev_arr[idx_dev].ifindex = ifindex;
-			bpctl_dev_arr[idx_dev].ndev = dev;
-
-		}
+		if (idx_dev == -1)
+			continue;
 
+		bpctl_dev_arr[idx_dev].ifindex = dev->ifindex;
+		bpctl_dev_arr[idx_dev].ndev = dev;
 	}
 	/* rtnl_unlock();     */
 	/* rcu_read_unlock(); */
-
 }
 
 static long device_ioctl(struct file *file,	/* see include/linux/fs.h */
-- 
cgit 


From 0dcde5084cc15b26ba9ed7ed049541f8a5d6d314 Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Fri, 13 Sep 2013 23:34:36 +0900
Subject: staging: dwc2: Fix typo in staging/dwc2

Correct spelling typo in comments

Singend-off-by: Masanari Iida <standby24x7@gmail.com>

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dwc2/core.c      | 2 +-
 drivers/staging/dwc2/hcd_queue.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/dwc2/core.c b/drivers/staging/dwc2/core.c
index 06dae67a9d62..8dbd174c9129 100644
--- a/drivers/staging/dwc2/core.c
+++ b/drivers/staging/dwc2/core.c
@@ -564,7 +564,7 @@ void dwc2_core_host_init(struct dwc2_hsotg *hsotg)
 
 	/*
 	 * This bit allows dynamic reloading of the HFIR register during
-	 * runtime. This bit needs to be programmed during inital configuration
+	 * runtime. This bit needs to be programmed during initial configuration
 	 * and its value must not be changed during runtime.
 	 */
 	if (hsotg->core_params->reload_ctl > 0) {
diff --git a/drivers/staging/dwc2/hcd_queue.c b/drivers/staging/dwc2/hcd_queue.c
index b1980ef28fa3..c09b2db2c89a 100644
--- a/drivers/staging/dwc2/hcd_queue.c
+++ b/drivers/staging/dwc2/hcd_queue.c
@@ -251,12 +251,12 @@ void dwc2_hcd_qh_free(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
  *
  * @hsotg: The HCD state structure for the DWC OTG controller
  *
- * Return: 0 if successful, negative error code otherise
+ * Return: 0 if successful, negative error code otherwise
  */
 static int dwc2_periodic_channel_available(struct dwc2_hsotg *hsotg)
 {
 	/*
-	 * Currently assuming that there is a dedicated host channnel for
+	 * Currently assuming that there is a dedicated host channel for
 	 * each periodic transaction plus at least one host channel for
 	 * non-periodic transactions
 	 */
-- 
cgit 


From 30765436fd3fdd797cfb67dd232b37fc855bb751 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Fri, 13 Sep 2013 17:59:43 +0300
Subject: staging: rtl8712: re-use native mac_pton() helper

There is a nice helper to parse MAC. Let's use it and remove custom
implementation.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8712/usb_intf.c | 16 +---------------
 1 file changed, 1 insertion(+), 15 deletions(-)

diff --git a/drivers/staging/rtl8712/usb_intf.c b/drivers/staging/rtl8712/usb_intf.c
index c812d6c7dc31..dbefa43e4c2c 100644
--- a/drivers/staging/rtl8712/usb_intf.c
+++ b/drivers/staging/rtl8712/usb_intf.c
@@ -353,11 +353,6 @@ static void disable_ht_for_spec_devid(const struct usb_device_id *pdid,
 	}
 }
 
-static u8 key_2char2num(u8 hch, u8 lch)
-{
-	return (hex_to_bin(hch) << 4) | hex_to_bin(lch);
-}
-
 /*
  * drv_init() - a device potentially for us
  *
@@ -465,16 +460,7 @@ static int r871xu_drv_init(struct usb_interface *pusb_intf,
 				r8712_efuse_pg_packet_read(padapter, offset,
 						     &pdata[i]);
 
-			if (r8712_initmac) {
-				/* Users specify the mac address */
-				int jj, kk;
-
-				for (jj = 0, kk = 0; jj < ETH_ALEN;
-				     jj++, kk += 3)
-					mac[jj] =
-					   key_2char2num(r8712_initmac[kk],
-					   r8712_initmac[kk + 1]);
-			} else {
+			if (!r8712_initmac || !mac_pton(r8712_initmac, mac)) {
 				/* Use the mac address stored in the Efuse
 				 * offset = 0x12 for usb in efuse
 				 */
-- 
cgit 


From 79e30af21fa56b92585c9efa5661d9c2cf9b997b Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Sat, 14 Sep 2013 00:46:31 +0900
Subject: staging: dgnc: Fix typo in staging/dgnc

Correct spelling typo in comments

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgnc/dgnc_driver.h | 2 +-
 drivers/staging/dgnc/dgnc_neo.c    | 2 +-
 drivers/staging/dgnc/dgnc_neo.h    | 2 +-
 drivers/staging/dgnc/dgnc_tty.c    | 4 ++--
 drivers/staging/dgnc/digi.h        | 4 ++--
 5 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/dgnc/dgnc_driver.h b/drivers/staging/dgnc/dgnc_driver.h
index d4a830b8ed96..3519b803e753 100644
--- a/drivers/staging/dgnc/dgnc_driver.h
+++ b/drivers/staging/dgnc/dgnc_driver.h
@@ -45,7 +45,7 @@
 /*
  * Driver identification, error and debugging statments
  *
- * In theory, you can change all occurances of "digi" in the next
+ * In theory, you can change all occurrences of "digi" in the next
  * three lines, and the driver printk's will all automagically change.
  *
  * APR((fmt, args, ...));	Always prints message
diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c
index 9421c71d8e51..0e2a5e144cfe 100644
--- a/drivers/staging/dgnc/dgnc_neo.c
+++ b/drivers/staging/dgnc/dgnc_neo.c
@@ -1111,7 +1111,7 @@ static irqreturn_t neo_intr(int irq, void *voidbrd)
 			 * Why would I check EVERY possibility of type of
 			 * interrupt, when we know its TXRDY???
 			 * Becuz for some reason, even tho we got triggered for TXRDY,
-			 * it seems to be occassionally wrong. Instead of TX, which
+			 * it seems to be occasionally wrong. Instead of TX, which
 			 * it should be, I was getting things like RXDY too. Weird.
 			 */
 			neo_parse_isr(brd, port);
diff --git a/drivers/staging/dgnc/dgnc_neo.h b/drivers/staging/dgnc/dgnc_neo.h
index 7ec5710a4340..1a4abb128693 100644
--- a/drivers/staging/dgnc/dgnc_neo.h
+++ b/drivers/staging/dgnc/dgnc_neo.h
@@ -47,7 +47,7 @@ struct neo_uart_struct {
 	u8 fctr;		/* WR  FCTR - Feature Control Reg */
 	u8 efr;		/* WR  EFR - Enhanced Function Reg */
 	u8 tfifo;		/* WR  TXCNT/TXTRG - Transmit FIFO Reg */
-	u8 rfifo;		/* WR  RXCNT/RXTRG - Recieve  FIFO Reg */
+	u8 rfifo;		/* WR  RXCNT/RXTRG - Receive  FIFO Reg */
 	u8 xoffchar1;	/* WR  XOFF 1 - XOff Character 1 Reg */
 	u8 xoffchar2;	/* WR  XOFF 2 - XOff Character 2 Reg */
 	u8 xonchar1;	/* WR  XON 1 - Xon Character 1 Reg */
diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c
index a0af01d79364..6906e9810913 100644
--- a/drivers/staging/dgnc/dgnc_tty.c
+++ b/drivers/staging/dgnc/dgnc_tty.c
@@ -267,7 +267,7 @@ int dgnc_tty_register(struct dgnc_board *brd)
 
 	/*
 	 * If we're doing transparent print, we have to do all of the above
-	 * again, seperately so we don't get the LD confused about what major
+	 * again, separately so we don't get the LD confused about what major
 	 * we are when we get into the dgnc_tty_open() routine.
 	 */
 	brd->PrintDriver.magic = TTY_DRIVER_MAGIC;
@@ -286,7 +286,7 @@ int dgnc_tty_register(struct dgnc_board *brd)
 
 	/*
 	 * The kernel wants space to store pointers to
-	 * tty_struct's and termios's.  Must be seperate from
+	 * tty_struct's and termios's.  Must be separated from
 	 * the Serial Driver so we don't get confused
 	 */
 	brd->PrintDriver.ttys = kzalloc(brd->maxports * sizeof(struct tty_struct *), GFP_KERNEL);
diff --git a/drivers/staging/dgnc/digi.h b/drivers/staging/dgnc/digi.h
index eb6e37125727..6a9adf6591eb 100644
--- a/drivers/staging/dgnc/digi.h
+++ b/drivers/staging/dgnc/digi.h
@@ -201,9 +201,9 @@ struct shrink_buf_struct {
 	unsigned int	shrink_buf_vaddr;	/* Virtual address of board */
 	unsigned int	shrink_buf_phys;	/* Physical address of board */
 	unsigned int	shrink_buf_bseg;	/* Amount of board memory */
-	unsigned int	shrink_buf_hseg;	/* '186 Begining of Dual-Port */
+	unsigned int	shrink_buf_hseg;	/* '186 Beginning of Dual-Port */
 
-	unsigned int	shrink_buf_lseg;	/* '186 Begining of freed memory */
+	unsigned int	shrink_buf_lseg;	/* '186 Beginning of freed memory */
 	unsigned int	shrink_buf_mseg;	/* Linear address from start of
 						   dual-port were freed memory
 						   begins, host viewpoint. */
-- 
cgit 


From 5fc6f1aebeb3dd815b378f4e02d93b770387c3a7 Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Sat, 14 Sep 2013 00:17:02 +0900
Subject: staging: dgap: Fix typo in staging/dgap

Correct spelling typo in comments.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgap/dgap_downld.h | 2 +-
 drivers/staging/dgap/dgap_driver.h | 2 +-
 drivers/staging/dgap/dgap_fep5.h   | 2 +-
 drivers/staging/dgap/dgap_parse.c  | 4 ++--
 drivers/staging/dgap/dgap_tty.c    | 4 ++--
 drivers/staging/dgap/digi.h        | 4 ++--
 drivers/staging/dgap/downld.c      | 4 ++--
 7 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/dgap/dgap_downld.h b/drivers/staging/dgap/dgap_downld.h
index f79e65cd1d51..271ac19257f9 100644
--- a/drivers/staging/dgap/dgap_downld.h
+++ b/drivers/staging/dgap/dgap_downld.h
@@ -35,7 +35,7 @@
 struct fepimg {
     int type;				/* board type */
     int	len;				/* length of image */
-    char fepimage[1];			/* begining of image */
+    char fepimage[1];			/* beginning of image */
 };
 
 struct downldio {
diff --git a/drivers/staging/dgap/dgap_driver.h b/drivers/staging/dgap/dgap_driver.h
index b1cf489a729c..4b9538598f3c 100644
--- a/drivers/staging/dgap/dgap_driver.h
+++ b/drivers/staging/dgap/dgap_driver.h
@@ -46,7 +46,7 @@
 /*
  * Driver identification, error and debugging statments
  *
- * In theory, you can change all occurances of "digi" in the next
+ * In theory, you can change all occurrences of "digi" in the next
  * three lines, and the driver printk's will all automagically change.
  *
  * APR((fmt, args, ...));	Always prints message
diff --git a/drivers/staging/dgap/dgap_fep5.h b/drivers/staging/dgap/dgap_fep5.h
index 3a12ba5e3c2a..c9abc406a1e0 100644
--- a/drivers/staging/dgap/dgap_fep5.h
+++ b/drivers/staging/dgap/dgap_fep5.h
@@ -211,7 +211,7 @@ struct bs_t {
 #define SIFLAG		0xea		/* Set UNIX iflags		*/
 #define SFLOWC		0xeb		/* Set flow control characters	*/
 #define STLOW		0xec		/* Set transmit low water mark	*/
-#define RPAUSE		0xee		/* Pause recieve		*/
+#define RPAUSE		0xee		/* Pause receive		*/
 #define RRESUME		0xef		/* Resume receive		*/  
 #define CHRESET		0xf0		/* Reset Channel		*/
 #define BUFSETALL	0xf2		/* Set Tx & Rx buffer size avail*/
diff --git a/drivers/staging/dgap/dgap_parse.c b/drivers/staging/dgap/dgap_parse.c
index 3bb79c5d7fe5..ff9d19449b43 100644
--- a/drivers/staging/dgap/dgap_parse.c
+++ b/drivers/staging/dgap/dgap_parse.c
@@ -904,7 +904,7 @@ int	dgap_parsefile(char **in, int Remove)
 /*
  * dgap_sindex: much like index(), but it looks for a match of any character in
  * the group, and returns that position.  If the first character is a ^, then
- * this will match the first occurence not in that group.
+ * this will match the first occurrence not in that group.
  */
 static char *dgap_sindex (char *string, char *group)
 {
@@ -1152,7 +1152,7 @@ uint dgap_config_get_altpin(struct board_t *bd)
 
 /*
  * Given a specific type of board, if found, detached link and 
- * returns the first occurance in the list.
+ * returns the first occurrence in the list.
  */
 struct cnode *dgap_find_config(int type, int bus, int slot)
 {
diff --git a/drivers/staging/dgap/dgap_tty.c b/drivers/staging/dgap/dgap_tty.c
index b906db30b617..2b2615202264 100644
--- a/drivers/staging/dgap/dgap_tty.c
+++ b/drivers/staging/dgap/dgap_tty.c
@@ -249,7 +249,7 @@ int dgap_tty_register(struct board_t *brd)
 
 	/*
 	 * If we're doing transparent print, we have to do all of the above
-	 * again, seperately so we don't get the LD confused about what major
+	 * again, separately so we don't get the LD confused about what major
 	 * we are when we get into the dgap_tty_open() routine.
 	 */
 	brd->PrintDriver = alloc_tty_driver(MAXPORTS);
@@ -1069,7 +1069,7 @@ static int dgap_tty_open(struct tty_struct *tty, struct file *file)
 
 	DGAP_LOCK(brd->bd_lock, lock_flags);
 
-	/* The wait above should guarentee this cannot happen */
+	/* The wait above should guarantee this cannot happen */
 	if (brd->state != BOARD_READY) {
 		DGAP_UNLOCK(brd->bd_lock, lock_flags);
 		return -ENXIO;
diff --git a/drivers/staging/dgap/digi.h b/drivers/staging/dgap/digi.h
index 651e2e5e93c7..bcea4f734a32 100644
--- a/drivers/staging/dgap/digi.h
+++ b/drivers/staging/dgap/digi.h
@@ -203,9 +203,9 @@ struct shrink_buf_struct {
 	unsigned long	shrink_buf_vaddr;	/* Virtual address of board */
 	unsigned long	shrink_buf_phys;	/* Physical address of board */
 	unsigned long	shrink_buf_bseg;	/* Amount of board memory */
-	unsigned long	shrink_buf_hseg;	/* '186 Begining of Dual-Port */
+	unsigned long	shrink_buf_hseg;	/* '186 Beginning of Dual-Port */
 
-	unsigned long	shrink_buf_lseg;	/* '186 Begining of freed memory						*/ 
+	unsigned long	shrink_buf_lseg;	/* '186 Beginning of freed memory						*/ 
 	unsigned long	shrink_buf_mseg;	/* Linear address from start of
 						   dual-port were freed memory
 						   begins, host viewpoint. */
diff --git a/drivers/staging/dgap/downld.c b/drivers/staging/dgap/downld.c
index 57dfd6bafcf6..638c5da43c85 100644
--- a/drivers/staging/dgap/downld.c
+++ b/drivers/staging/dgap/downld.c
@@ -52,7 +52,7 @@ char		*pgm;
 void		myperror();
 
 /*
-**  This structure is used to keep track of the diferent images available
+**  This structure is used to keep track of the different images available
 **  to give to the driver.  It is arranged so that the things that are
 **  constants or that have defaults are first inthe strucutre to simplify
 **  the table of initializers.
@@ -789,7 +789,7 @@ int main(int argc, char **argv)
 /*
 ** myperror()
 **
-**  Same as normal perror(), but places the program name at the begining
+**  Same as normal perror(), but places the program name at the beginning
 **  of the message.
 */
 void myperror(char *s)
-- 
cgit 


From 9076b09e07da4b2644a17d7d18e117944cbc09be Mon Sep 17 00:00:00 2001
From: Fengguang Wu <fengguang.wu@intel.com>
Date: Sat, 14 Sep 2013 19:56:25 -0700
Subject: staging/lustre: fix coccinelle warnings

drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c:217:2-3: Unneeded semicolon

Removes unneeded semicolon.

Generated by: coccinelle/misc/semicolon.cocci

CC: Peng Tao <bergwolf@gmail.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c
index e90c8fb7da6a..26f3f417edcc 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_bulk.c
@@ -207,7 +207,7 @@ static void enc_pools_release_free_pages(long npages)
 			p_idx++;
 			g_idx = 0;
 		}
-	};
+	}
 
 	/* free unused pools */
 	while (p_idx_max1 < p_idx_max2) {
-- 
cgit 


From e7f133290660d976da8cb20e9bc7310d0cd19341 Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Tue, 17 Sep 2013 09:38:23 -0700
Subject: openvswitch: Move flow table rehashing to flow install.

Rehashing in ovs-workqueue can cause ovs-mutex lock contentions
in case of heavy flow setups where both needs ovs-mutex.  So by
moving rehashing to flow-setup we can eliminate contention.
This also simplify ovs locking and reduces dependence on
workqueue.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
---
 net/openvswitch/datapath.c | 50 ++++++++++------------------------------------
 net/openvswitch/datapath.h |  2 ++
 2 files changed, 13 insertions(+), 39 deletions(-)

diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 2aa13bd7f2b2..2e1a9c24e380 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -60,8 +60,6 @@
 
 
 #define REHASH_FLOW_INTERVAL (10 * 60 * HZ)
-static void rehash_flow_table(struct work_struct *work);
-static DECLARE_DELAYED_WORK(rehash_flow_wq, rehash_flow_table);
 
 int ovs_net_id __read_mostly;
 
@@ -1289,22 +1287,25 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 	/* Check if this is a duplicate flow */
 	flow = ovs_flow_lookup(table, &key);
 	if (!flow) {
+		struct flow_table *new_table = NULL;
 		struct sw_flow_mask *mask_p;
+
 		/* Bail out if we're not allowed to create a new flow. */
 		error = -ENOENT;
 		if (info->genlhdr->cmd == OVS_FLOW_CMD_SET)
 			goto err_unlock_ovs;
 
 		/* Expand table, if necessary, to make room. */
-		if (ovs_flow_tbl_need_to_expand(table)) {
-			struct flow_table *new_table;
-
+		if (ovs_flow_tbl_need_to_expand(table))
 			new_table = ovs_flow_tbl_expand(table);
-			if (!IS_ERR(new_table)) {
-				rcu_assign_pointer(dp->table, new_table);
-				ovs_flow_tbl_destroy(table, true);
-				table = ovsl_dereference(dp->table);
-			}
+		else if (time_after(jiffies, dp->last_rehash + REHASH_FLOW_INTERVAL))
+			new_table = ovs_flow_tbl_rehash(table);
+
+		if (new_table && !IS_ERR(new_table)) {
+			rcu_assign_pointer(dp->table, new_table);
+			ovs_flow_tbl_destroy(table, true);
+			table = ovsl_dereference(dp->table);
+			dp->last_rehash = jiffies;
 		}
 
 		/* Allocate flow. */
@@ -2336,32 +2337,6 @@ error:
 	return err;
 }
 
-static void rehash_flow_table(struct work_struct *work)
-{
-	struct datapath *dp;
-	struct net *net;
-
-	ovs_lock();
-	rtnl_lock();
-	for_each_net(net) {
-		struct ovs_net *ovs_net = net_generic(net, ovs_net_id);
-
-		list_for_each_entry(dp, &ovs_net->dps, list_node) {
-			struct flow_table *old_table = ovsl_dereference(dp->table);
-			struct flow_table *new_table;
-
-			new_table = ovs_flow_tbl_rehash(old_table);
-			if (!IS_ERR(new_table)) {
-				rcu_assign_pointer(dp->table, new_table);
-				ovs_flow_tbl_destroy(old_table, true);
-			}
-		}
-	}
-	rtnl_unlock();
-	ovs_unlock();
-	schedule_delayed_work(&rehash_flow_wq, REHASH_FLOW_INTERVAL);
-}
-
 static int __net_init ovs_init_net(struct net *net)
 {
 	struct ovs_net *ovs_net = net_generic(net, ovs_net_id);
@@ -2419,8 +2394,6 @@ static int __init dp_init(void)
 	if (err < 0)
 		goto error_unreg_notifier;
 
-	schedule_delayed_work(&rehash_flow_wq, REHASH_FLOW_INTERVAL);
-
 	return 0;
 
 error_unreg_notifier:
@@ -2437,7 +2410,6 @@ error:
 
 static void dp_cleanup(void)
 {
-	cancel_delayed_work_sync(&rehash_flow_wq);
 	dp_unregister_genl(ARRAY_SIZE(dp_genl_families));
 	unregister_netdevice_notifier(&ovs_dp_device_notifier);
 	unregister_pernet_device(&ovs_net_ops);
diff --git a/net/openvswitch/datapath.h b/net/openvswitch/datapath.h
index 4d109c176ef3..2c15541f3b46 100644
--- a/net/openvswitch/datapath.h
+++ b/net/openvswitch/datapath.h
@@ -62,6 +62,7 @@ struct dp_stats_percpu {
  * ovs_mutex and RCU.
  * @stats_percpu: Per-CPU datapath statistics.
  * @net: Reference to net namespace.
+ * @last_rehash: Timestamp of last rehash.
  *
  * Context: See the comment on locking at the top of datapath.c for additional
  * locking information.
@@ -83,6 +84,7 @@ struct datapath {
 	/* Network namespace ref. */
 	struct net *net;
 #endif
+	unsigned long last_rehash;
 };
 
 /**
-- 
cgit 


From c7ccde6eac6d3c4bc6110cc3fd76ef3823bc0831 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Tue, 3 Sep 2013 13:58:43 -0400
Subject: USB: see if URB comes from a completion handler

Now that URBs can be completed inside tasklets, we need a way of
determining whether a completion handler for a given endpoint is
currently running.  Otherwise it's not possible to maintain the API
guarantee about keeping isochronous streams synchronous when an
underrun occurs.

This patch adds a field and a routine to check whether a completion
handler for a periodic endpoint is running.  At the moment no
analogous routine appears to be necessary for async endpoints, but one
can always be added.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hcd.c  | 2 ++
 include/linux/usb/hcd.h | 7 +++++++
 2 files changed, 9 insertions(+)

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index d6a8d23f047b..3a2e82a9c115 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1703,7 +1703,9 @@ static void usb_giveback_urb_bh(unsigned long param)
 
 		urb = list_entry(local_list.next, struct urb, urb_list);
 		list_del_init(&urb->urb_list);
+		bh->completing_ep = urb->ep;
 		__usb_hcd_giveback_urb(urb);
+		bh->completing_ep = NULL;
 	}
 
 	/* check if there are new URBs to giveback */
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index 75efc45eaa2f..8c865134c881 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -73,6 +73,7 @@ struct giveback_urb_bh {
 	spinlock_t lock;
 	struct list_head  head;
 	struct tasklet_struct bh;
+	struct usb_host_endpoint *completing_ep;
 };
 
 struct usb_hcd {
@@ -378,6 +379,12 @@ static inline int hcd_giveback_urb_in_bh(struct usb_hcd *hcd)
 	return hcd->driver->flags & HCD_BH;
 }
 
+static inline bool hcd_periodic_completion_in_progress(struct usb_hcd *hcd,
+		struct usb_host_endpoint *ep)
+{
+	return hcd->high_prio_bh.completing_ep == ep;
+}
+
 extern int usb_hcd_link_urb_to_ep(struct usb_hcd *hcd, struct urb *urb);
 extern int usb_hcd_check_unlink_urb(struct usb_hcd *hcd, struct urb *urb,
 		int status);
-- 
cgit 


From e4e18cbd52c8efb0d73a66d0598dc887c0feefb7 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Tue, 3 Sep 2013 13:58:59 -0400
Subject: USB: EHCI: code rearrangement in iso_stream_schedule()

This patch interchanges the "if" and "else" branches of the big "if"
statement in iso_stream_schedule(), in preparation for the next patch
in this series.  That is, it changes

	if (likely(!...)) {
		A
	} else {
		B
	}

to

	if (unlikely(...)) {
		B
	} else {
		A
	}

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-sched.c | 92 ++++++++++++++++++++++---------------------
 1 file changed, 47 insertions(+), 45 deletions(-)

diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 85dd24ed97a6..208518bc6e36 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -1384,12 +1384,57 @@ iso_stream_schedule (
 
 	now = ehci_read_frame_index(ehci) & (mod - 1);
 
-	/* Typical case: reuse current schedule, stream is still active.
+	/*
+	 * Need to schedule; when's the next (u)frame we could start?
+	 * This is bigger than ehci->i_thresh allows; scheduling itself
+	 * isn't free, the delay should handle reasonably slow cpus.  It
+	 * can also help high bandwidth if the dma and irq loads don't
+	 * jump until after the queue is primed.
+	 */
+	if (unlikely(list_empty(&stream->td_list))) {
+		int done = 0;
+
+		base = now & ~0x07;
+		start = base + SCHEDULING_DELAY;
+
+		/* find a uframe slot with enough bandwidth.
+		 * Early uframes are more precious because full-speed
+		 * iso IN transfers can't use late uframes,
+		 * and therefore they should be allocated last.
+		 */
+		next = start;
+		start += period;
+		do {
+			start--;
+			/* check schedule: enough space? */
+			if (stream->highspeed) {
+				if (itd_slot_ok(ehci, mod, start,
+						stream->usecs, period))
+					done = 1;
+			} else {
+				if ((start % 8) >= 6)
+					continue;
+				if (sitd_slot_ok(ehci, mod, stream,
+						start, sched, period))
+					done = 1;
+			}
+		} while (start > next && !done);
+
+		/* no room in the schedule */
+		if (!done) {
+			ehci_dbg(ehci, "iso sched full %p", urb);
+			status = -ENOSPC;
+			goto fail;
+		}
+	}
+
+	/*
+	 * Typical case: reuse current schedule, stream is still active.
 	 * Hopefully there are no gaps from the host falling behind
 	 * (irq delays etc).  If there are, the behavior depends on
 	 * whether URB_ISO_ASAP is set.
 	 */
-	if (likely (!list_empty (&stream->td_list))) {
+	else {
 
 		/* Take the isochronous scheduling threshold into account */
 		if (ehci->i_thresh)
@@ -1436,49 +1481,6 @@ iso_stream_schedule (
 		start += base;
 	}
 
-	/* need to schedule; when's the next (u)frame we could start?
-	 * this is bigger than ehci->i_thresh allows; scheduling itself
-	 * isn't free, the delay should handle reasonably slow cpus.  it
-	 * can also help high bandwidth if the dma and irq loads don't
-	 * jump until after the queue is primed.
-	 */
-	else {
-		int done = 0;
-
-		base = now & ~0x07;
-		start = base + SCHEDULING_DELAY;
-
-		/* find a uframe slot with enough bandwidth.
-		 * Early uframes are more precious because full-speed
-		 * iso IN transfers can't use late uframes,
-		 * and therefore they should be allocated last.
-		 */
-		next = start;
-		start += period;
-		do {
-			start--;
-			/* check schedule: enough space? */
-			if (stream->highspeed) {
-				if (itd_slot_ok(ehci, mod, start,
-						stream->usecs, period))
-					done = 1;
-			} else {
-				if ((start % 8) >= 6)
-					continue;
-				if (sitd_slot_ok(ehci, mod, stream,
-						start, sched, period))
-					done = 1;
-			}
-		} while (start > next && !done);
-
-		/* no room in the schedule */
-		if (!done) {
-			ehci_dbg(ehci, "iso sched full %p", urb);
-			status = -ENOSPC;
-			goto fail;
-		}
-	}
-
 	/* Tried to schedule too far into the future? */
 	if (unlikely(start - base + span - period >= mod)) {
 		ehci_dbg(ehci, "request %p would overflow (%u+%u >= %u)\n",
-- 
cgit 


From 46c73d1d3ebc38feed1d97c6980252a0a01f6a5b Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Tue, 3 Sep 2013 13:59:03 -0400
Subject: USB: EHCI: handle isochronous underruns with tasklets

This patch updates the iso_stream_schedule() routine in ehci-sched.c
to handle cases where an underrun causes an isochronous endpoint's
queue to empty out, but the client driver wants to maintain
synchronization with the device (i.e., the URB_ISO_ASAP flag is not
set).  This could not happen until recently, when ehci-hcd switched
over to completing URBs in a tasklet.

(This may seem like an unlikely case to worry about, but underruns are
all too common with the snd-usb-audio driver, which doesn't use
URB_ISO_ASAP.)

As part of the fix, some URBs may need to be given back when they are
submitted.  This is necessary when the URB's scheduled slots all fall
before the current value of ehci->last_iso_frame, and as an
optimization we do it also when the slots all fall before the current
frame number.

As a second part of the fix, we may need to skip some but not all of
an URB's packets.  This is necessary when some of the URB's scheduled
slots fall before the current value of ehci->last_iso_frame and some
of them fall after the current frame number.  A new field
(first_packet) is added to struct ehci_iso_sched, to indicate how many
packets should be skipped.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-sched.c | 150 ++++++++++++++++++++++++++----------------
 drivers/usb/host/ehci.h       |   1 +
 2 files changed, 96 insertions(+), 55 deletions(-)

diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 208518bc6e36..dcbaad94d607 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -1370,10 +1370,12 @@ iso_stream_schedule (
 	struct ehci_iso_stream	*stream
 )
 {
-	u32			now, base, next, start, period, span;
-	int			status;
+	u32			now, base, next, start, period, span, now2;
+	u32			wrap = 0, skip = 0;
+	int			status = 0;
 	unsigned		mod = ehci->periodic_size << 3;
 	struct ehci_iso_sched	*sched = urb->hcpriv;
+	bool			empty = list_empty(&stream->td_list);
 
 	period = urb->interval;
 	span = sched->span;
@@ -1384,6 +1386,19 @@ iso_stream_schedule (
 
 	now = ehci_read_frame_index(ehci) & (mod - 1);
 
+	/* Take the isochronous scheduling threshold into account */
+	if (ehci->i_thresh)
+		next = now + ehci->i_thresh;	/* uframe cache */
+	else
+		next = (now + 2 + 7) & ~0x07;	/* full frame cache */
+
+	/*
+	 * Use ehci->last_iso_frame as the base.  There can't be any
+	 * TDs scheduled for earlier than that.
+	 */
+	base = ehci->last_iso_frame << 3;
+	next = (next - base) & (mod - 1);
+
 	/*
 	 * Need to schedule; when's the next (u)frame we could start?
 	 * This is bigger than ehci->i_thresh allows; scheduling itself
@@ -1391,11 +1406,11 @@ iso_stream_schedule (
 	 * can also help high bandwidth if the dma and irq loads don't
 	 * jump until after the queue is primed.
 	 */
-	if (unlikely(list_empty(&stream->td_list))) {
+	if (unlikely(empty && !hcd_periodic_completion_in_progress(
+			ehci_to_hcd(ehci), urb->ep))) {
 		int done = 0;
 
-		base = now & ~0x07;
-		start = base + SCHEDULING_DELAY;
+		start = (now & ~0x07) + SCHEDULING_DELAY;
 
 		/* find a uframe slot with enough bandwidth.
 		 * Early uframes are more precious because full-speed
@@ -1426,6 +1441,9 @@ iso_stream_schedule (
 			status = -ENOSPC;
 			goto fail;
 		}
+
+		start = (start - base) & (mod - 1);
+		goto use_start;
 	}
 
 	/*
@@ -1434,72 +1452,85 @@ iso_stream_schedule (
 	 * (irq delays etc).  If there are, the behavior depends on
 	 * whether URB_ISO_ASAP is set.
 	 */
-	else {
+	start = (stream->next_uframe - base) & (mod - 1);
+	now2 = (now - base) & (mod - 1);
 
-		/* Take the isochronous scheduling threshold into account */
-		if (ehci->i_thresh)
-			next = now + ehci->i_thresh;	/* uframe cache */
-		else
-			next = (now + 2 + 7) & ~0x07;	/* full frame cache */
+	/* Is the schedule already full? */
+	if (unlikely(!empty && start < period)) {
+		ehci_dbg(ehci, "iso sched full %p (%u-%u < %u mod %u)\n",
+				urb, stream->next_uframe, base, period, mod);
+		status = -ENOSPC;
+		goto fail;
+	}
 
-		/*
-		 * Use ehci->last_iso_frame as the base.  There can't be any
-		 * TDs scheduled for earlier than that.
-		 */
-		base = ehci->last_iso_frame << 3;
-		next = (next - base) & (mod - 1);
-		start = (stream->next_uframe - base) & (mod - 1);
-
-		/* Is the schedule already full? */
-		if (unlikely(start < period)) {
-			ehci_dbg(ehci, "iso sched full %p (%u-%u < %u mod %u)\n",
-					urb, stream->next_uframe, base,
-					period, mod);
-			status = -ENOSPC;
-			goto fail;
-		}
+	/* Is the next packet scheduled after the base time? */
+	if (likely(!empty || start <= now2 + period)) {
 
-		/* Behind the scheduling threshold? */
-		if (unlikely(start < next)) {
-			unsigned now2 = (now - base) & (mod - 1);
+		/* URB_ISO_ASAP: make sure that start >= next */
+		if (unlikely(start < next &&
+				(urb->transfer_flags & URB_ISO_ASAP)))
+			goto do_ASAP;
 
-			/* USB_ISO_ASAP: Round up to the first available slot */
-			if (urb->transfer_flags & URB_ISO_ASAP)
-				start += (next - start + period - 1) & -period;
+		/* Otherwise use start, if it's not in the past */
+		if (likely(start >= now2))
+			goto use_start;
 
-			/*
-			 * Not ASAP: Use the next slot in the stream,
-			 * no matter what.
-			 */
-			else if (start + span - period < now2) {
-				ehci_dbg(ehci, "iso underrun %p (%u+%u < %u)\n",
-						urb, start + base,
-						span - period, now2 + base);
-			}
-		}
+	/* Otherwise we got an underrun while the queue was empty */
+	} else {
+		if (urb->transfer_flags & URB_ISO_ASAP)
+			goto do_ASAP;
+		wrap = mod;
+		now2 += mod;
+	}
 
-		start += base;
+	/* How many uframes and packets do we need to skip? */
+	skip = (now2 - start + period - 1) & -period;
+	if (skip >= span) {		/* Entirely in the past? */
+		ehci_dbg(ehci, "iso underrun %p (%u+%u < %u) [%u]\n",
+				urb, start + base, span - period, now2 + base,
+				base);
+
+		/* Try to keep the last TD intact for scanning later */
+		skip = span - period;
+
+		/* Will it come before the current scan position? */
+		if (empty) {
+			skip = span;	/* Skip the entire URB */
+			status = 1;	/* and give it back immediately */
+			iso_sched_free(stream, sched);
+			sched = NULL;
+		}
 	}
+	urb->error_count = skip / period;
+	if (sched)
+		sched->first_packet = urb->error_count;
+	goto use_start;
 
+ do_ASAP:
+	/* Use the first slot after "next" */
+	start = next + ((start - next) & (period - 1));
+
+ use_start:
 	/* Tried to schedule too far into the future? */
-	if (unlikely(start - base + span - period >= mod)) {
+	if (unlikely(start + span - period >= mod + wrap)) {
 		ehci_dbg(ehci, "request %p would overflow (%u+%u >= %u)\n",
-				urb, start - base, span - period, mod);
+				urb, start, span - period, mod + wrap);
 		status = -EFBIG;
 		goto fail;
 	}
 
-	stream->next_uframe = start & (mod - 1);
+	start += base;
+	stream->next_uframe = (start + skip) & (mod - 1);
 
 	/* report high speed start in uframes; full speed, in frames */
-	urb->start_frame = stream->next_uframe;
+	urb->start_frame = start & (mod - 1);
 	if (!stream->highspeed)
 		urb->start_frame >>= 3;
 
 	/* Make sure scan_isoc() sees these */
 	if (ehci->isoc_count == 0)
 		ehci->last_iso_frame = now >> 3;
-	return 0;
+	return status;
 
  fail:
 	iso_sched_free(stream, sched);
@@ -1612,7 +1643,8 @@ static void itd_link_urb(
 	ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs++;
 
 	/* fill iTDs uframe by uframe */
-	for (packet = 0, itd = NULL; packet < urb->number_of_packets; ) {
+	for (packet = iso_sched->first_packet, itd = NULL;
+			packet < urb->number_of_packets;) {
 		if (itd == NULL) {
 			/* ASSERT:  we have all necessary itds */
 			// BUG_ON (list_empty (&iso_sched->td_list));
@@ -1806,10 +1838,14 @@ static int itd_submit (struct ehci_hcd *ehci, struct urb *urb,
 	if (unlikely(status))
 		goto done_not_linked;
 	status = iso_stream_schedule(ehci, urb, stream);
-	if (likely (status == 0))
+	if (likely(status == 0)) {
 		itd_link_urb (ehci, urb, ehci->periodic_size << 3, stream);
-	else
+	} else if (status > 0) {
+		status = 0;
+		ehci_urb_done(ehci, urb, 0);
+	} else {
 		usb_hcd_unlink_urb_from_ep(ehci_to_hcd(ehci), urb);
+	}
  done_not_linked:
 	spin_unlock_irqrestore (&ehci->lock, flags);
  done:
@@ -2010,7 +2046,7 @@ static void sitd_link_urb(
 	ehci_to_hcd(ehci)->self.bandwidth_isoc_reqs++;
 
 	/* fill sITDs frame by frame */
-	for (packet = 0, sitd = NULL;
+	for (packet = sched->first_packet, sitd = NULL;
 			packet < urb->number_of_packets;
 			packet++) {
 
@@ -2180,10 +2216,14 @@ static int sitd_submit (struct ehci_hcd *ehci, struct urb *urb,
 	if (unlikely(status))
 		goto done_not_linked;
 	status = iso_stream_schedule(ehci, urb, stream);
-	if (status == 0)
+	if (likely(status == 0)) {
 		sitd_link_urb (ehci, urb, ehci->periodic_size << 3, stream);
-	else
+	} else if (status > 0) {
+		status = 0;
+		ehci_urb_done(ehci, urb, 0);
+	} else {
 		usb_hcd_unlink_urb_from_ep(ehci_to_hcd(ehci), urb);
+	}
  done_not_linked:
 	spin_unlock_irqrestore (&ehci->lock, flags);
  done:
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index 291db7d09f22..2d401927e143 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -434,6 +434,7 @@ struct ehci_iso_packet {
 struct ehci_iso_sched {
 	struct list_head	td_list;
 	unsigned		span;
+	unsigned		first_packet;
 	struct ehci_iso_packet	packet [0];
 };
 
-- 
cgit 


From 37c3a3c4ffde23115c58bec7694082b3a44c6da5 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 14:04:44 +0900
Subject: USB: ehci-fsl: Remove casting the return value which is a void
 pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-fsl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index 947b009009f1..e41cfdc9bf93 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -57,7 +57,7 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver,
 	pr_debug("initializing FSL-SOC USB Controller\n");
 
 	/* Need platform data for setup */
-	pdata = (struct fsl_usb2_platform_data *)dev_get_platdata(&pdev->dev);
+	pdata = dev_get_platdata(&pdev->dev);
 	if (!pdata) {
 		dev_err(&pdev->dev,
 			"No platform data for %s.\n", dev_name(&pdev->dev));
-- 
cgit 


From 6c74dada4f5a37037dee1da6a8a7aeb56c558bca Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Fri, 30 Aug 2013 14:03:59 +0200
Subject: usb-core: Make usb_free_streams return an error

The hcd-driver free_streams method can return an error, so lets properly
propagate that.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hcd.c | 11 +++++++----
 include/linux/usb.h    |  2 +-
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 3a2e82a9c115..ab54999da2bf 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -2075,8 +2075,11 @@ EXPORT_SYMBOL_GPL(usb_alloc_streams);
  *
  * Reverts a group of bulk endpoints back to not using stream IDs.
  * Can fail if we are given bad arguments, or HCD is broken.
+ *
+ * Return: On success, the number of allocated streams. On failure, a negative
+ * error code.
  */
-void usb_free_streams(struct usb_interface *interface,
+int usb_free_streams(struct usb_interface *interface,
 		struct usb_host_endpoint **eps, unsigned int num_eps,
 		gfp_t mem_flags)
 {
@@ -2087,14 +2090,14 @@ void usb_free_streams(struct usb_interface *interface,
 	dev = interface_to_usbdev(interface);
 	hcd = bus_to_hcd(dev->bus);
 	if (dev->speed != USB_SPEED_SUPER)
-		return;
+		return -EINVAL;
 
 	/* Streams only apply to bulk endpoints. */
 	for (i = 0; i < num_eps; i++)
 		if (!eps[i] || !usb_endpoint_xfer_bulk(&eps[i]->desc))
-			return;
+			return -EINVAL;
 
-	hcd->driver->free_streams(hcd, dev, eps, num_eps, mem_flags);
+	return hcd->driver->free_streams(hcd, dev, eps, num_eps, mem_flags);
 }
 EXPORT_SYMBOL_GPL(usb_free_streams);
 
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 001629cd1a97..f726c39097e0 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -702,7 +702,7 @@ extern int usb_alloc_streams(struct usb_interface *interface,
 		unsigned int num_streams, gfp_t mem_flags);
 
 /* Reverts a group of bulk endpoints back to not using stream IDs. */
-extern void usb_free_streams(struct usb_interface *interface,
+extern int usb_free_streams(struct usb_interface *interface,
 		struct usb_host_endpoint **eps, unsigned int num_eps,
 		gfp_t mem_flags);
 
-- 
cgit 


From 9df89d85b407690afa46ddfbccc80bec6869971d Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Sat, 31 Aug 2013 18:09:12 +0300
Subject: usbcore: set lpm_capable field for LPM capable root hubs

This patch sets the lpm_capable field for root hubs with LPM capabilities.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Reported-by: Martin MOKREJS <mmokrejs@gmail.com>
Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hcd.c | 1 +
 drivers/usb/core/hub.c | 7 ++++++-
 drivers/usb/core/usb.h | 1 +
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index ab54999da2bf..9795a21bc612 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1033,6 +1033,7 @@ static int register_root_hub(struct usb_hcd *hcd)
 					dev_name(&usb_dev->dev), retval);
 			return retval;
 		}
+		usb_dev->lpm_capable = usb_device_supports_lpm(usb_dev);
 	}
 
 	retval = usb_new_device (usb_dev);
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index dde4c83516a1..52a1de99c6f2 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -135,7 +135,7 @@ struct usb_hub *usb_hub_to_struct_hub(struct usb_device *hdev)
 	return usb_get_intfdata(hdev->actconfig->interface[0]);
 }
 
-static int usb_device_supports_lpm(struct usb_device *udev)
+int usb_device_supports_lpm(struct usb_device *udev)
 {
 	/* USB 2.1 (and greater) devices indicate LPM support through
 	 * their USB 2.0 Extended Capabilities BOS descriptor.
@@ -156,6 +156,11 @@ static int usb_device_supports_lpm(struct usb_device *udev)
 				"Power management will be impacted.\n");
 		return 0;
 	}
+
+	/* udev is root hub */
+	if (!udev->parent)
+		return 1;
+
 	if (udev->parent->lpm_capable)
 		return 1;
 
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h
index 823857767a16..c49383669cd8 100644
--- a/drivers/usb/core/usb.h
+++ b/drivers/usb/core/usb.h
@@ -35,6 +35,7 @@ extern int usb_get_device_descriptor(struct usb_device *dev,
 		unsigned int size);
 extern int usb_get_bos_descriptor(struct usb_device *dev);
 extern void usb_release_bos_descriptor(struct usb_device *dev);
+extern int usb_device_supports_lpm(struct usb_device *udev);
 extern char *usb_cache_string(struct usb_device *udev, int index);
 extern int usb_set_configuration(struct usb_device *dev, int configuration);
 extern int usb_choose_configuration(struct usb_device *udev);
-- 
cgit 


From 4d96799524159f7c3e774a7b45a308780a26dc4d Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Sat, 31 Aug 2013 18:09:13 +0300
Subject: usbcore: fix incorrect type in assignment in usb_set_lpm_parameters()

In the bos usb_ss_cap_descriptor structure, bU2DevExitLat is of type __le16.
This value is used as it is, without being first converted to the CPU
byteorder, for the setup of usb device's usb3_lpm_parameters.
This patch fixes that by converting bU2DevExitLat field to the CPU byteorder
before the assignmenment to [udev/hub]_u2_del variables.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hub.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 52a1de99c6f2..6f783bfe2959 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -315,9 +315,9 @@ static void usb_set_lpm_parameters(struct usb_device *udev)
 		return;
 
 	udev_u1_del = udev->bos->ss_cap->bU1devExitLat;
-	udev_u2_del = udev->bos->ss_cap->bU2DevExitLat;
+	udev_u2_del = le16_to_cpu(udev->bos->ss_cap->bU2DevExitLat);
 	hub_u1_del = udev->parent->bos->ss_cap->bU1devExitLat;
-	hub_u2_del = udev->parent->bos->ss_cap->bU2DevExitLat;
+	hub_u2_del = le16_to_cpu(udev->parent->bos->ss_cap->bU2DevExitLat);
 
 	usb_set_lpm_mel(udev, &udev->u1_params, udev_u1_del,
 			hub, &udev->parent->u1_params, hub_u1_del);
-- 
cgit 


From c8f2efc8f636506e0f0c2ba4035382076875f0c1 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Sat, 31 Aug 2013 18:09:14 +0300
Subject: usbcore: fix read of usbdevfs_ctrltransfer fields in proc_control()

Urb fields are stored in struct usbdevfs_ctrltransfer in CPU byteorder
and not in little endian, so there is no need to be converted.
This bug was reported by sparse.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/devio.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 737e3c19967b..f4f2300f8e10 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -898,10 +898,8 @@ static int proc_control(struct dev_state *ps, void __user *arg)
 	snoop(&dev->dev, "control urb: bRequestType=%02x "
 		"bRequest=%02x wValue=%04x "
 		"wIndex=%04x wLength=%04x\n",
-		ctrl.bRequestType, ctrl.bRequest,
-		__le16_to_cpup(&ctrl.wValue),
-		__le16_to_cpup(&ctrl.wIndex),
-		__le16_to_cpup(&ctrl.wLength));
+		ctrl.bRequestType, ctrl.bRequest, ctrl.wValue,
+		ctrl.wIndex, ctrl.wLength);
 	if (ctrl.bRequestType & 0x80) {
 		if (ctrl.wLength && !access_ok(VERIFY_WRITE, ctrl.data,
 					       ctrl.wLength)) {
-- 
cgit 


From 233bcb411cd32d15c4d04271fa06ca8f2dc24eb8 Mon Sep 17 00:00:00 2001
From: Elad Wexler <elad.wexler@gmail.com>
Date: Thu, 12 Sep 2013 13:28:54 +0300
Subject: clocksource: Fix 'ret' data type of sysfs_override_clocksource() and
 sysfs_unbind_clocksource()

sysfs_override_clocksource(): The expression 'if (ret >= 0)' is always true.
This will cause clocksource_select() to always run.
Thus modified ret to be of type ssize_t.

sysfs_unbind_clocksource(): The expression 'if (ret < 0)' is always false.
So in case sysfs_get_uname() failed, the expression won't take an effect.
Thus modified ret to be of type ssize_t.

Signed-off-by: Elad Wexler <elad.wexler@gmail.com>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 kernel/time/clocksource.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index 64cf63ca09cc..c9317e14aae6 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -940,7 +940,7 @@ static ssize_t sysfs_override_clocksource(struct device *dev,
 					  struct device_attribute *attr,
 					  const char *buf, size_t count)
 {
-	size_t ret;
+	ssize_t ret;
 
 	mutex_lock(&clocksource_mutex);
 
@@ -968,7 +968,7 @@ static ssize_t sysfs_unbind_clocksource(struct device *dev,
 {
 	struct clocksource *cs;
 	char name[CS_NAME_LEN];
-	size_t ret;
+	ssize_t ret;
 
 	ret = sysfs_get_uname(buf, name, count);
 	if (ret < 0)
-- 
cgit 


From 238493e34d3f6aea8531d3c0ee0583c4c929e12f Mon Sep 17 00:00:00 2001
From: Gregory CLEMENT <gregory.clement@free-electrons.com>
Date: Thu, 22 Aug 2013 16:19:29 +0200
Subject: ARM: dts: mvebu: Update with the new compatible string for
 mv64xxx-i2c

The mv64xxx-i2c embedded in the Armada XP have a new feature to
offload i2c transaction. This new version of the IP come also with
some errata. This lead to the introduction to a another compatible
string.

This commit split the i2c information into armada-370.dtsi and
armada-xp.dtsi. Most of the data remains the same and stay in the
common file Armada-370-xp.dtsi. With this new feature the size of the
registers are bigger for Armada XP and the new compatible string is
used.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/armada-370-xp.dtsi |  2 --
 arch/arm/boot/dts/armada-370.dtsi    |  8 ++++++++
 arch/arm/boot/dts/armada-xp.dtsi     | 10 ++++++++++
 3 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/armada-370-xp.dtsi b/arch/arm/boot/dts/armada-370-xp.dtsi
index 1de2dae0fdae..57dbc5dbc360 100644
--- a/arch/arm/boot/dts/armada-370-xp.dtsi
+++ b/arch/arm/boot/dts/armada-370-xp.dtsi
@@ -176,7 +176,6 @@
 
 			i2c0: i2c@11000 {
 				compatible = "marvell,mv64xxx-i2c";
-				reg = <0x11000 0x20>;
 				#address-cells = <1>;
 				#size-cells = <0>;
 				interrupts = <31>;
@@ -187,7 +186,6 @@
 
 			i2c1: i2c@11100 {
 				compatible = "marvell,mv64xxx-i2c";
-				reg = <0x11100 0x20>;
 				#address-cells = <1>;
 				#size-cells = <0>;
 				interrupts = <32>;
diff --git a/arch/arm/boot/dts/armada-370.dtsi b/arch/arm/boot/dts/armada-370.dtsi
index e134d7a90c9a..b8d376170959 100644
--- a/arch/arm/boot/dts/armada-370.dtsi
+++ b/arch/arm/boot/dts/armada-370.dtsi
@@ -218,6 +218,14 @@
 				};
 			};
 
+			i2c0: i2c@11000 {
+				reg = <0x11000 0x20>;
+			};
+
+			i2c1: i2c@11100 {
+				reg = <0x11100 0x20>;
+			};
+
 			usb@50000 {
 				clocks = <&coreclk 0>;
 			};
diff --git a/arch/arm/boot/dts/armada-xp.dtsi b/arch/arm/boot/dts/armada-xp.dtsi
index def125c0eeaa..84fcd861b6e7 100644
--- a/arch/arm/boot/dts/armada-xp.dtsi
+++ b/arch/arm/boot/dts/armada-xp.dtsi
@@ -145,6 +145,16 @@
 				};
 			};
 
+			i2c0: i2c@11000 {
+				compatible = "marvell,mv78230-i2c", "marvell,mv64xxx-i2c";
+				reg = <0x11000 0x100>;
+			};
+
+			i2c1: i2c@11100 {
+				compatible = "marvell,mv78230-i2c", "marvell,mv64xxx-i2c";
+				reg = <0x11100 0x100>;
+			};
+
 			usb@50000 {
 				clocks = <&gateclk 18>;
 			};
-- 
cgit 


From d2207071b3c74b144a860cbe6a46496a44963972 Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Tue, 20 Aug 2013 15:17:35 -0600
Subject: ARM: tegra: split tegra_pmc_init() in two

Tegra's board file currently initializes clocks much earlier than those
for most other ARM SoCs. The reason is:

* The PMC HW block is involved in the path of some interrupts (i.e. it
inverts, or not, the IRQ input pin dedicated to the PMIC).

* So, that part of the PMC must be initialized early so that the IRQ
polarity is correct.

* The PMC initialization is currently monolithic, and the PMC has some
clock inputs, so the init routine ends up calling of_clk_get_by_name(),
and hence clocks must be set up early too.

In order to defer clock initialization to the more typical location,
split out the portions of tegra_pmc_init() that are truly IRQ-related
into a separate tegra_pmc_init_irq(), which can be called from the
machine descriptor's .init_irq() function, and defer the rest until
the machine descriptor's .init_machine() function. This allows the
clock initiliazation to happen from the machine descriptor's
.init_time() function, as is typical.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/mach-tegra/common.c |  4 +---
 arch/arm/mach-tegra/pmc.c    | 41 ++++++++++++++++++++++-------------------
 arch/arm/mach-tegra/pmc.h    |  1 +
 arch/arm/mach-tegra/tegra.c  | 12 +++++++++++-
 4 files changed, 35 insertions(+), 23 deletions(-)

diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c
index 94a119a35af8..58dc91c56ccb 100644
--- a/arch/arm/mach-tegra/common.c
+++ b/arch/arm/mach-tegra/common.c
@@ -24,7 +24,6 @@
 #include <linux/delay.h>
 #include <linux/reboot.h>
 #include <linux/irqchip.h>
-#include <linux/clk-provider.h>
 
 #include <asm/hardware/cache-l2x0.h>
 
@@ -61,8 +60,7 @@ u32 tegra_uart_config[4] = {
 #ifdef CONFIG_OF
 void __init tegra_dt_init_irq(void)
 {
-	of_clk_init(NULL);
-	tegra_pmc_init();
+	tegra_pmc_init_irq();
 	tegra_init_irq();
 	irqchip_init();
 	tegra_legacy_irq_syscore_init();
diff --git a/arch/arm/mach-tegra/pmc.c b/arch/arm/mach-tegra/pmc.c
index 8acb881f7cfe..7916ff91f969 100644
--- a/arch/arm/mach-tegra/pmc.c
+++ b/arch/arm/mach-tegra/pmc.c
@@ -285,13 +285,10 @@ static const struct of_device_id matches[] __initconst = {
 	{ }
 };
 
-static void __init tegra_pmc_parse_dt(void)
+void __init tegra_pmc_init_irq(void)
 {
 	struct device_node *np;
-	u32 prop;
-	enum tegra_suspend_mode suspend_mode;
-	u32 core_good_time[2] = {0, 0};
-	u32 lp0_vec[2] = {0, 0};
+	u32 val;
 
 	np = of_find_matching_node(NULL, matches);
 	BUG_ON(!np);
@@ -300,6 +297,26 @@ static void __init tegra_pmc_parse_dt(void)
 
 	tegra_pmc_invert_interrupt = of_property_read_bool(np,
 				     "nvidia,invert-interrupt");
+
+	val = tegra_pmc_readl(PMC_CTRL);
+	if (tegra_pmc_invert_interrupt)
+		val |= PMC_CTRL_INTR_LOW;
+	else
+		val &= ~PMC_CTRL_INTR_LOW;
+	tegra_pmc_writel(val, PMC_CTRL);
+}
+
+void __init tegra_pmc_init(void)
+{
+	struct device_node *np;
+	u32 prop;
+	enum tegra_suspend_mode suspend_mode;
+	u32 core_good_time[2] = {0, 0};
+	u32 lp0_vec[2] = {0, 0};
+
+	np = of_find_matching_node(NULL, matches);
+	BUG_ON(!np);
+
 	tegra_pclk = of_clk_get_by_name(np, "pclk");
 	WARN_ON(IS_ERR(tegra_pclk));
 
@@ -365,17 +382,3 @@ static void __init tegra_pmc_parse_dt(void)
 
 	pmc_pm_data.suspend_mode = suspend_mode;
 }
-
-void __init tegra_pmc_init(void)
-{
-	u32 val;
-
-	tegra_pmc_parse_dt();
-
-	val = tegra_pmc_readl(PMC_CTRL);
-	if (tegra_pmc_invert_interrupt)
-		val |= PMC_CTRL_INTR_LOW;
-	else
-		val &= ~PMC_CTRL_INTR_LOW;
-	tegra_pmc_writel(val, PMC_CTRL);
-}
diff --git a/arch/arm/mach-tegra/pmc.h b/arch/arm/mach-tegra/pmc.h
index 549f8c7b762c..4d5f8f32225c 100644
--- a/arch/arm/mach-tegra/pmc.h
+++ b/arch/arm/mach-tegra/pmc.h
@@ -39,6 +39,7 @@ bool tegra_pmc_cpu_is_powered(int cpuid);
 int tegra_pmc_cpu_power_on(int cpuid);
 int tegra_pmc_cpu_remove_clamping(int cpuid);
 
+void tegra_pmc_init_irq(void);
 void tegra_pmc_init(void);
 
 #endif
diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c
index 5b8605547a09..4da271df2e6c 100644
--- a/arch/arm/mach-tegra/tegra.c
+++ b/arch/arm/mach-tegra/tegra.c
@@ -33,6 +33,7 @@
 #include <linux/slab.h>
 #include <linux/sys_soc.h>
 #include <linux/usb/tegra_usb_phy.h>
+#include <linux/clk-provider.h>
 #include <linux/clk/tegra.h>
 
 #include <asm/mach-types.h>
@@ -44,6 +45,7 @@
 #include "common.h"
 #include "fuse.h"
 #include "iomap.h"
+#include "pmc.h"
 
 static void __init tegra_dt_init(void)
 {
@@ -51,6 +53,8 @@ static void __init tegra_dt_init(void)
 	struct soc_device *soc_dev;
 	struct device *parent = NULL;
 
+	tegra_pmc_init();
+
 	tegra_clocks_apply_init_table();
 
 	soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
@@ -80,6 +84,12 @@ out:
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, parent);
 }
 
+static void __init tegra_dt_init_time(void)
+{
+	of_clk_init(NULL);
+	clocksource_of_init();
+}
+
 static void __init paz00_init(void)
 {
 	if (IS_ENABLED(CONFIG_ARCH_TEGRA_2x_SOC))
@@ -119,7 +129,7 @@ DT_MACHINE_START(TEGRA_DT, "NVIDIA Tegra SoC (Flattened Device Tree)")
 	.smp		= smp_ops(tegra_smp_ops),
 	.init_early	= tegra_init_early,
 	.init_irq	= tegra_dt_init_irq,
-	.init_time	= clocksource_of_init,
+	.init_time	= tegra_dt_init_time,
 	.init_machine	= tegra_dt_init,
 	.init_late	= tegra_dt_init_late,
 	.restart	= tegra_assert_system_reset,
-- 
cgit 


From 51100bdc067706624f0ffe285e63a6099336e11a Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Tue, 20 Aug 2013 15:47:38 -0600
Subject: ARM: tegra: remove common.c

common.c was create to contain code shared across the various Tegra board
files. There is now only one board file, tegra.c. So, move the code there.
One exception is the PMC reboot routine, which moves to pmc.c, and now
takes advantage of the 'standard' tegra_pmc_readl/writel functions.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/mach-tegra/Makefile |   1 -
 arch/arm/mach-tegra/board.h  |   6 ---
 arch/arm/mach-tegra/common.c | 113 -------------------------------------------
 arch/arm/mach-tegra/pmc.c    |   9 ++++
 arch/arm/mach-tegra/pmc.h    |   4 ++
 arch/arm/mach-tegra/tegra.c  |  67 ++++++++++++++++++++++++-
 6 files changed, 78 insertions(+), 122 deletions(-)
 delete mode 100644 arch/arm/mach-tegra/common.c

diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index e7e5f45c6558..97eb48e977e5 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -1,6 +1,5 @@
 asflags-y				+= -march=armv7-a
 
-obj-y                                   += common.o
 obj-y                                   += io.o
 obj-y                                   += irq.o
 obj-y					+= fuse.o
diff --git a/arch/arm/mach-tegra/board.h b/arch/arm/mach-tegra/board.h
index db6810dc0b3d..7b9a5bddc0be 100644
--- a/arch/arm/mach-tegra/board.h
+++ b/arch/arm/mach-tegra/board.h
@@ -25,14 +25,8 @@
 #include <linux/types.h>
 #include <linux/reboot.h>
 
-void tegra_assert_system_reset(enum reboot_mode mode, const char *cmd);
-
-void __init tegra_init_early(void);
 void __init tegra_map_common_io(void);
 void __init tegra_init_irq(void);
-void __init tegra_dt_init_irq(void);
-
-void tegra_init_late(void);
 
 #ifdef CONFIG_DEBUG_FS
 int tegra_clk_debugfs_init(void);
diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c
deleted file mode 100644
index 58dc91c56ccb..000000000000
--- a/arch/arm/mach-tegra/common.c
+++ /dev/null
@@ -1,113 +0,0 @@
-/*
- * arch/arm/mach-tegra/common.c
- *
- * Copyright (c) 2013 NVIDIA Corporation. All rights reserved.
- * Copyright (C) 2010 Google, Inc.
- *
- * Author:
- *	Colin Cross <ccross@android.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/init.h>
-#include <linux/io.h>
-#include <linux/clk.h>
-#include <linux/delay.h>
-#include <linux/reboot.h>
-#include <linux/irqchip.h>
-
-#include <asm/hardware/cache-l2x0.h>
-
-#include "board.h"
-#include "common.h"
-#include "cpuidle.h"
-#include "fuse.h"
-#include "iomap.h"
-#include "irq.h"
-#include "pmc.h"
-#include "apbio.h"
-#include "sleep.h"
-#include "pm.h"
-#include "reset.h"
-
-/*
- * Storage for debug-macro.S's state.
- *
- * This must be in .data not .bss so that it gets initialized each time the
- * kernel is loaded. The data is declared here rather than debug-macro.S so
- * that multiple inclusions of debug-macro.S point at the same data.
- */
-u32 tegra_uart_config[4] = {
-	/* Debug UART initialization required */
-	1,
-	/* Debug UART physical address */
-	0,
-	/* Debug UART virtual address */
-	0,
-	/* Scratch space for debug macro */
-	0,
-};
-
-#ifdef CONFIG_OF
-void __init tegra_dt_init_irq(void)
-{
-	tegra_pmc_init_irq();
-	tegra_init_irq();
-	irqchip_init();
-	tegra_legacy_irq_syscore_init();
-}
-#endif
-
-void tegra_assert_system_reset(enum reboot_mode mode, const char *cmd)
-{
-	void __iomem *reset = IO_ADDRESS(TEGRA_PMC_BASE + 0);
-	u32 reg;
-
-	reg = readl_relaxed(reset);
-	reg |= 0x10;
-	writel_relaxed(reg, reset);
-}
-
-static void __init tegra_init_cache(void)
-{
-#ifdef CONFIG_CACHE_L2X0
-	int ret;
-	void __iomem *p = IO_ADDRESS(TEGRA_ARM_PERIF_BASE) + 0x3000;
-	u32 aux_ctrl, cache_type;
-
-	cache_type = readl(p + L2X0_CACHE_TYPE);
-	aux_ctrl = (cache_type & 0x700) << (17-8);
-	aux_ctrl |= 0x7C400001;
-
-	ret = l2x0_of_init(aux_ctrl, 0x8200c3fe);
-	if (!ret)
-		l2x0_saved_regs_addr = virt_to_phys(&l2x0_saved_regs);
-#endif
-
-}
-
-void __init tegra_init_early(void)
-{
-	tegra_cpu_reset_handler_init();
-	tegra_apb_io_init();
-	tegra_init_fuse();
-	tegra_init_cache();
-	tegra_powergate_init();
-	tegra_hotplug_init();
-}
-
-void __init tegra_init_late(void)
-{
-	tegra_init_suspend();
-	tegra_cpuidle_init();
-	tegra_powergate_debugfs_init();
-}
diff --git a/arch/arm/mach-tegra/pmc.c b/arch/arm/mach-tegra/pmc.c
index 7916ff91f969..93a4dbcde27e 100644
--- a/arch/arm/mach-tegra/pmc.c
+++ b/arch/arm/mach-tegra/pmc.c
@@ -166,6 +166,15 @@ int tegra_pmc_cpu_remove_clamping(int cpuid)
 	return tegra_pmc_powergate_remove_clamping(id);
 }
 
+void tegra_pmc_restart(enum reboot_mode mode, const char *cmd)
+{
+	u32 val;
+
+	val = tegra_pmc_readl(0);
+	val |= 0x10;
+	tegra_pmc_writel(val, 0);
+}
+
 #ifdef CONFIG_PM_SLEEP
 static void set_power_timers(u32 us_on, u32 us_off, unsigned long rate)
 {
diff --git a/arch/arm/mach-tegra/pmc.h b/arch/arm/mach-tegra/pmc.h
index 4d5f8f32225c..59e19c344298 100644
--- a/arch/arm/mach-tegra/pmc.h
+++ b/arch/arm/mach-tegra/pmc.h
@@ -18,6 +18,8 @@
 #ifndef __MACH_TEGRA_PMC_H
 #define __MACH_TEGRA_PMC_H
 
+#include <linux/reboot.h>
+
 enum tegra_suspend_mode {
 	TEGRA_SUSPEND_NONE = 0,
 	TEGRA_SUSPEND_LP2,	/* CPU voltage off */
@@ -39,6 +41,8 @@ bool tegra_pmc_cpu_is_powered(int cpuid);
 int tegra_pmc_cpu_power_on(int cpuid);
 int tegra_pmc_cpu_remove_clamping(int cpuid);
 
+void tegra_pmc_restart(enum reboot_mode mode, const char *cmd);
+
 void tegra_pmc_init_irq(void);
 void tegra_pmc_init(void);
 
diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c
index 4da271df2e6c..40b031c42299 100644
--- a/arch/arm/mach-tegra/tegra.c
+++ b/arch/arm/mach-tegra/tegra.c
@@ -35,17 +35,78 @@
 #include <linux/usb/tegra_usb_phy.h>
 #include <linux/clk-provider.h>
 #include <linux/clk/tegra.h>
+#include <linux/irqchip.h>
 
+#include <asm/hardware/cache-l2x0.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>
 #include <asm/setup.h>
 
+#include "apbio.h"
 #include "board.h"
 #include "common.h"
+#include "cpuidle.h"
 #include "fuse.h"
 #include "iomap.h"
+#include "irq.h"
 #include "pmc.h"
+#include "pm.h"
+#include "reset.h"
+#include "sleep.h"
+
+/*
+ * Storage for debug-macro.S's state.
+ *
+ * This must be in .data not .bss so that it gets initialized each time the
+ * kernel is loaded. The data is declared here rather than debug-macro.S so
+ * that multiple inclusions of debug-macro.S point at the same data.
+ */
+u32 tegra_uart_config[4] = {
+	/* Debug UART initialization required */
+	1,
+	/* Debug UART physical address */
+	0,
+	/* Debug UART virtual address */
+	0,
+	/* Scratch space for debug macro */
+	0,
+};
+
+static void __init tegra_init_cache(void)
+{
+#ifdef CONFIG_CACHE_L2X0
+	int ret;
+	void __iomem *p = IO_ADDRESS(TEGRA_ARM_PERIF_BASE) + 0x3000;
+	u32 aux_ctrl, cache_type;
+
+	cache_type = readl(p + L2X0_CACHE_TYPE);
+	aux_ctrl = (cache_type & 0x700) << (17-8);
+	aux_ctrl |= 0x7C400001;
+
+	ret = l2x0_of_init(aux_ctrl, 0x8200c3fe);
+	if (!ret)
+		l2x0_saved_regs_addr = virt_to_phys(&l2x0_saved_regs);
+#endif
+}
+
+static void __init tegra_init_early(void)
+{
+	tegra_cpu_reset_handler_init();
+	tegra_apb_io_init();
+	tegra_init_fuse();
+	tegra_init_cache();
+	tegra_powergate_init();
+	tegra_hotplug_init();
+}
+
+static void __init tegra_dt_init_irq(void)
+{
+	tegra_pmc_init_irq();
+	tegra_init_irq();
+	irqchip_init();
+	tegra_legacy_irq_syscore_init();
+}
 
 static void __init tegra_dt_init(void)
 {
@@ -107,7 +168,9 @@ static void __init tegra_dt_init_late(void)
 {
 	int i;
 
-	tegra_init_late();
+	tegra_init_suspend();
+	tegra_cpuidle_init();
+	tegra_powergate_debugfs_init();
 
 	for (i = 0; i < ARRAY_SIZE(board_init_funcs); i++) {
 		if (of_machine_is_compatible(board_init_funcs[i].machine)) {
@@ -132,6 +195,6 @@ DT_MACHINE_START(TEGRA_DT, "NVIDIA Tegra SoC (Flattened Device Tree)")
 	.init_time	= tegra_dt_init_time,
 	.init_machine	= tegra_dt_init,
 	.init_late	= tegra_dt_init_late,
-	.restart	= tegra_assert_system_reset,
+	.restart	= tegra_pmc_restart,
 	.dt_compat	= tegra_dt_board_compat,
 MACHINE_END
-- 
cgit 


From 6163afd5e15c297031374bc7766916ff11f114b4 Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Tue, 20 Aug 2013 16:07:33 -0600
Subject: ARM: tegra: delete stale header content

A few function prototypes were left in header files during code re-
organization. Delete them.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/mach-tegra/board.h | 6 ------
 arch/arm/mach-tegra/pm.h    | 3 ---
 2 files changed, 9 deletions(-)

diff --git a/arch/arm/mach-tegra/board.h b/arch/arm/mach-tegra/board.h
index 7b9a5bddc0be..bcf5dbf69d58 100644
--- a/arch/arm/mach-tegra/board.h
+++ b/arch/arm/mach-tegra/board.h
@@ -28,12 +28,6 @@
 void __init tegra_map_common_io(void);
 void __init tegra_init_irq(void);
 
-#ifdef CONFIG_DEBUG_FS
-int tegra_clk_debugfs_init(void);
-#else
-static inline int tegra_clk_debugfs_init(void) { return 0; }
-#endif
-
 int __init tegra_powergate_init(void);
 #if defined(CONFIG_ARCH_TEGRA_2x_SOC) && defined(CONFIG_DEBUG_FS)
 int __init tegra_powergate_debugfs_init(void);
diff --git a/arch/arm/mach-tegra/pm.h b/arch/arm/mach-tegra/pm.h
index fe204e5256e7..6e92a7c2ecbd 100644
--- a/arch/arm/mach-tegra/pm.h
+++ b/arch/arm/mach-tegra/pm.h
@@ -37,9 +37,6 @@ void tegra30_sleep_core_init(void);
 
 extern unsigned long l2x0_saved_regs_addr;
 
-void save_cpu_arch_register(void);
-void restore_cpu_arch_register(void);
-
 void tegra_clear_cpu_in_lp2(void);
 bool tegra_set_cpu_in_lp2(void);
 
-- 
cgit 


From 6ae894166c249398da16fe8dc5ab6112f996203b Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Tue, 20 Aug 2013 16:11:29 -0600
Subject: ARM: tegra: delete gpio-names.h

gpio-names.h defines IDs for GPIOs. This information now comes from
device tree, so delete this stale header. The one remaining use-case is
board-paz00.c's wifi_rfkill device. Isolate the knowledge of those GPIO
IDs into that file. Let's hope the values stay valid:-)

Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/mach-tegra/board-paz00.c |   5 +-
 arch/arm/mach-tegra/board-paz00.h |  25 ----
 arch/arm/mach-tegra/gpio-names.h  | 247 --------------------------------------
 3 files changed, 2 insertions(+), 275 deletions(-)
 delete mode 100644 arch/arm/mach-tegra/board-paz00.h
 delete mode 100644 arch/arm/mach-tegra/gpio-names.h

diff --git a/arch/arm/mach-tegra/board-paz00.c b/arch/arm/mach-tegra/board-paz00.c
index 740e16f64728..06f024070dab 100644
--- a/arch/arm/mach-tegra/board-paz00.c
+++ b/arch/arm/mach-tegra/board-paz00.c
@@ -20,12 +20,11 @@
 #include <linux/platform_device.h>
 #include <linux/rfkill-gpio.h>
 #include "board.h"
-#include "board-paz00.h"
 
 static struct rfkill_gpio_platform_data wifi_rfkill_platform_data = {
 	.name		= "wifi_rfkill",
-	.reset_gpio	= TEGRA_WIFI_RST,
-	.shutdown_gpio	= TEGRA_WIFI_PWRN,
+	.reset_gpio	= 25, /* PD1 */
+	.shutdown_gpio	= 85, /* PK5 */
 	.type	= RFKILL_TYPE_WLAN,
 };
 
diff --git a/arch/arm/mach-tegra/board-paz00.h b/arch/arm/mach-tegra/board-paz00.h
deleted file mode 100644
index 25c08ecef52f..000000000000
--- a/arch/arm/mach-tegra/board-paz00.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * arch/arm/mach-tegra/board-paz00.h
- *
- * Copyright (C) 2010 Marc Dietrich <marvin24@gmx.de>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#ifndef _MACH_TEGRA_BOARD_PAZ00_H
-#define _MACH_TEGRA_BOARD_PAZ00_H
-
-#include "gpio-names.h"
-
-#define TEGRA_WIFI_PWRN			TEGRA_GPIO_PK5
-#define TEGRA_WIFI_RST			TEGRA_GPIO_PD1
-
-#endif
diff --git a/arch/arm/mach-tegra/gpio-names.h b/arch/arm/mach-tegra/gpio-names.h
deleted file mode 100644
index f28220a641b2..000000000000
--- a/arch/arm/mach-tegra/gpio-names.h
+++ /dev/null
@@ -1,247 +0,0 @@
-/*
- * arch/arm/mach-tegra/include/mach/gpio-names.h
- *
- * Copyright (c) 2010 Google, Inc
- *
- * Author:
- *	Erik Gilling <konkers@google.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#ifndef __MACH_TEGRA_GPIO_NAMES_H
-#define __MACH_TEGRA_GPIO_NAMES_H
-
-#define TEGRA_GPIO_PA0		0
-#define TEGRA_GPIO_PA1		1
-#define TEGRA_GPIO_PA2		2
-#define TEGRA_GPIO_PA3		3
-#define TEGRA_GPIO_PA4		4
-#define TEGRA_GPIO_PA5		5
-#define TEGRA_GPIO_PA6		6
-#define TEGRA_GPIO_PA7		7
-#define TEGRA_GPIO_PB0		8
-#define TEGRA_GPIO_PB1		9
-#define TEGRA_GPIO_PB2		10
-#define TEGRA_GPIO_PB3		11
-#define TEGRA_GPIO_PB4		12
-#define TEGRA_GPIO_PB5		13
-#define TEGRA_GPIO_PB6		14
-#define TEGRA_GPIO_PB7		15
-#define TEGRA_GPIO_PC0		16
-#define TEGRA_GPIO_PC1		17
-#define TEGRA_GPIO_PC2		18
-#define TEGRA_GPIO_PC3		19
-#define TEGRA_GPIO_PC4		20
-#define TEGRA_GPIO_PC5		21
-#define TEGRA_GPIO_PC6		22
-#define TEGRA_GPIO_PC7		23
-#define TEGRA_GPIO_PD0		24
-#define TEGRA_GPIO_PD1		25
-#define TEGRA_GPIO_PD2		26
-#define TEGRA_GPIO_PD3		27
-#define TEGRA_GPIO_PD4		28
-#define TEGRA_GPIO_PD5		29
-#define TEGRA_GPIO_PD6		30
-#define TEGRA_GPIO_PD7		31
-#define TEGRA_GPIO_PE0		32
-#define TEGRA_GPIO_PE1		33
-#define TEGRA_GPIO_PE2		34
-#define TEGRA_GPIO_PE3		35
-#define TEGRA_GPIO_PE4		36
-#define TEGRA_GPIO_PE5		37
-#define TEGRA_GPIO_PE6		38
-#define TEGRA_GPIO_PE7		39
-#define TEGRA_GPIO_PF0		40
-#define TEGRA_GPIO_PF1		41
-#define TEGRA_GPIO_PF2		42
-#define TEGRA_GPIO_PF3		43
-#define TEGRA_GPIO_PF4		44
-#define TEGRA_GPIO_PF5		45
-#define TEGRA_GPIO_PF6		46
-#define TEGRA_GPIO_PF7		47
-#define TEGRA_GPIO_PG0		48
-#define TEGRA_GPIO_PG1		49
-#define TEGRA_GPIO_PG2		50
-#define TEGRA_GPIO_PG3		51
-#define TEGRA_GPIO_PG4		52
-#define TEGRA_GPIO_PG5		53
-#define TEGRA_GPIO_PG6		54
-#define TEGRA_GPIO_PG7		55
-#define TEGRA_GPIO_PH0		56
-#define TEGRA_GPIO_PH1		57
-#define TEGRA_GPIO_PH2		58
-#define TEGRA_GPIO_PH3		59
-#define TEGRA_GPIO_PH4		60
-#define TEGRA_GPIO_PH5		61
-#define TEGRA_GPIO_PH6		62
-#define TEGRA_GPIO_PH7		63
-#define TEGRA_GPIO_PI0		64
-#define TEGRA_GPIO_PI1		65
-#define TEGRA_GPIO_PI2		66
-#define TEGRA_GPIO_PI3		67
-#define TEGRA_GPIO_PI4		68
-#define TEGRA_GPIO_PI5		69
-#define TEGRA_GPIO_PI6		70
-#define TEGRA_GPIO_PI7		71
-#define TEGRA_GPIO_PJ0		72
-#define TEGRA_GPIO_PJ1		73
-#define TEGRA_GPIO_PJ2		74
-#define TEGRA_GPIO_PJ3		75
-#define TEGRA_GPIO_PJ4		76
-#define TEGRA_GPIO_PJ5		77
-#define TEGRA_GPIO_PJ6		78
-#define TEGRA_GPIO_PJ7		79
-#define TEGRA_GPIO_PK0		80
-#define TEGRA_GPIO_PK1		81
-#define TEGRA_GPIO_PK2		82
-#define TEGRA_GPIO_PK3		83
-#define TEGRA_GPIO_PK4		84
-#define TEGRA_GPIO_PK5		85
-#define TEGRA_GPIO_PK6		86
-#define TEGRA_GPIO_PK7		87
-#define TEGRA_GPIO_PL0		88
-#define TEGRA_GPIO_PL1		89
-#define TEGRA_GPIO_PL2		90
-#define TEGRA_GPIO_PL3		91
-#define TEGRA_GPIO_PL4		92
-#define TEGRA_GPIO_PL5		93
-#define TEGRA_GPIO_PL6		94
-#define TEGRA_GPIO_PL7		95
-#define TEGRA_GPIO_PM0		96
-#define TEGRA_GPIO_PM1		97
-#define TEGRA_GPIO_PM2		98
-#define TEGRA_GPIO_PM3		99
-#define TEGRA_GPIO_PM4		100
-#define TEGRA_GPIO_PM5		101
-#define TEGRA_GPIO_PM6		102
-#define TEGRA_GPIO_PM7		103
-#define TEGRA_GPIO_PN0		104
-#define TEGRA_GPIO_PN1		105
-#define TEGRA_GPIO_PN2		106
-#define TEGRA_GPIO_PN3		107
-#define TEGRA_GPIO_PN4		108
-#define TEGRA_GPIO_PN5		109
-#define TEGRA_GPIO_PN6		110
-#define TEGRA_GPIO_PN7		111
-#define TEGRA_GPIO_PO0		112
-#define TEGRA_GPIO_PO1		113
-#define TEGRA_GPIO_PO2		114
-#define TEGRA_GPIO_PO3		115
-#define TEGRA_GPIO_PO4		116
-#define TEGRA_GPIO_PO5		117
-#define TEGRA_GPIO_PO6		118
-#define TEGRA_GPIO_PO7		119
-#define TEGRA_GPIO_PP0		120
-#define TEGRA_GPIO_PP1		121
-#define TEGRA_GPIO_PP2		122
-#define TEGRA_GPIO_PP3		123
-#define TEGRA_GPIO_PP4		124
-#define TEGRA_GPIO_PP5		125
-#define TEGRA_GPIO_PP6		126
-#define TEGRA_GPIO_PP7		127
-#define TEGRA_GPIO_PQ0		128
-#define TEGRA_GPIO_PQ1		129
-#define TEGRA_GPIO_PQ2		130
-#define TEGRA_GPIO_PQ3		131
-#define TEGRA_GPIO_PQ4		132
-#define TEGRA_GPIO_PQ5		133
-#define TEGRA_GPIO_PQ6		134
-#define TEGRA_GPIO_PQ7		135
-#define TEGRA_GPIO_PR0		136
-#define TEGRA_GPIO_PR1		137
-#define TEGRA_GPIO_PR2		138
-#define TEGRA_GPIO_PR3		139
-#define TEGRA_GPIO_PR4		140
-#define TEGRA_GPIO_PR5		141
-#define TEGRA_GPIO_PR6		142
-#define TEGRA_GPIO_PR7		143
-#define TEGRA_GPIO_PS0		144
-#define TEGRA_GPIO_PS1		145
-#define TEGRA_GPIO_PS2		146
-#define TEGRA_GPIO_PS3		147
-#define TEGRA_GPIO_PS4		148
-#define TEGRA_GPIO_PS5		149
-#define TEGRA_GPIO_PS6		150
-#define TEGRA_GPIO_PS7		151
-#define TEGRA_GPIO_PT0		152
-#define TEGRA_GPIO_PT1		153
-#define TEGRA_GPIO_PT2		154
-#define TEGRA_GPIO_PT3		155
-#define TEGRA_GPIO_PT4		156
-#define TEGRA_GPIO_PT5		157
-#define TEGRA_GPIO_PT6		158
-#define TEGRA_GPIO_PT7		159
-#define TEGRA_GPIO_PU0		160
-#define TEGRA_GPIO_PU1		161
-#define TEGRA_GPIO_PU2		162
-#define TEGRA_GPIO_PU3		163
-#define TEGRA_GPIO_PU4		164
-#define TEGRA_GPIO_PU5		165
-#define TEGRA_GPIO_PU6		166
-#define TEGRA_GPIO_PU7		167
-#define TEGRA_GPIO_PV0		168
-#define TEGRA_GPIO_PV1		169
-#define TEGRA_GPIO_PV2		170
-#define TEGRA_GPIO_PV3		171
-#define TEGRA_GPIO_PV4		172
-#define TEGRA_GPIO_PV5		173
-#define TEGRA_GPIO_PV6		174
-#define TEGRA_GPIO_PV7		175
-#define TEGRA_GPIO_PW0		176
-#define TEGRA_GPIO_PW1		177
-#define TEGRA_GPIO_PW2		178
-#define TEGRA_GPIO_PW3		179
-#define TEGRA_GPIO_PW4		180
-#define TEGRA_GPIO_PW5		181
-#define TEGRA_GPIO_PW6		182
-#define TEGRA_GPIO_PW7		183
-#define TEGRA_GPIO_PX0		184
-#define TEGRA_GPIO_PX1		185
-#define TEGRA_GPIO_PX2		186
-#define TEGRA_GPIO_PX3		187
-#define TEGRA_GPIO_PX4		188
-#define TEGRA_GPIO_PX5		189
-#define TEGRA_GPIO_PX6		190
-#define TEGRA_GPIO_PX7		191
-#define TEGRA_GPIO_PY0		192
-#define TEGRA_GPIO_PY1		193
-#define TEGRA_GPIO_PY2		194
-#define TEGRA_GPIO_PY3		195
-#define TEGRA_GPIO_PY4		196
-#define TEGRA_GPIO_PY5		197
-#define TEGRA_GPIO_PY6		198
-#define TEGRA_GPIO_PY7		199
-#define TEGRA_GPIO_PZ0		200
-#define TEGRA_GPIO_PZ1		201
-#define TEGRA_GPIO_PZ2		202
-#define TEGRA_GPIO_PZ3		203
-#define TEGRA_GPIO_PZ4		204
-#define TEGRA_GPIO_PZ5		205
-#define TEGRA_GPIO_PZ6		206
-#define TEGRA_GPIO_PZ7		207
-#define TEGRA_GPIO_PAA0		208
-#define TEGRA_GPIO_PAA1		209
-#define TEGRA_GPIO_PAA2		210
-#define TEGRA_GPIO_PAA3		211
-#define TEGRA_GPIO_PAA4		212
-#define TEGRA_GPIO_PAA5		213
-#define TEGRA_GPIO_PAA6		214
-#define TEGRA_GPIO_PAA7		215
-#define TEGRA_GPIO_PBB0		216
-#define TEGRA_GPIO_PBB1		217
-#define TEGRA_GPIO_PBB2		218
-#define TEGRA_GPIO_PBB3		219
-#define TEGRA_GPIO_PBB4		220
-#define TEGRA_GPIO_PBB5		221
-#define TEGRA_GPIO_PBB6		222
-#define TEGRA_GPIO_PBB7		223
-
-#endif
-- 
cgit 


From fddb770dbe468876ea6562e21f817813baa15082 Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Tue, 20 Aug 2013 16:19:15 -0600
Subject: ARM: tegra: move resume vector define to irammap.h

irammap.h's purpose is to define the layout/usage of IRAM. As such,
TEGRA_IRAM_CODE_AREA should have been added there rather than iomap.h.
Move the define, and rename it something more descriptive.

Cc: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/mach-tegra/iomap.h         | 2 --
 arch/arm/mach-tegra/irammap.h       | 6 ++++++
 arch/arm/mach-tegra/pm.c            | 8 ++++----
 arch/arm/mach-tegra/reset.c         | 2 +-
 arch/arm/mach-tegra/sleep-tegra20.S | 5 +++--
 arch/arm/mach-tegra/sleep-tegra30.S | 5 +++--
 6 files changed, 17 insertions(+), 11 deletions(-)

diff --git a/arch/arm/mach-tegra/iomap.h b/arch/arm/mach-tegra/iomap.h
index 3f5fa0749bde..7e0c1809c2dc 100644
--- a/arch/arm/mach-tegra/iomap.h
+++ b/arch/arm/mach-tegra/iomap.h
@@ -24,8 +24,6 @@
 #define TEGRA_IRAM_BASE			0x40000000
 #define TEGRA_IRAM_SIZE			SZ_256K
 
-#define TEGRA_IRAM_CODE_AREA		(TEGRA_IRAM_BASE + SZ_4K)
-
 #define TEGRA_HOST1X_BASE		0x50000000
 #define TEGRA_HOST1X_SIZE		0x24000
 
diff --git a/arch/arm/mach-tegra/irammap.h b/arch/arm/mach-tegra/irammap.h
index 501952a84344..e32e1742c9a1 100644
--- a/arch/arm/mach-tegra/irammap.h
+++ b/arch/arm/mach-tegra/irammap.h
@@ -23,4 +23,10 @@
 #define TEGRA_IRAM_RESET_HANDLER_OFFSET	0
 #define TEGRA_IRAM_RESET_HANDLER_SIZE	SZ_1K
 
+/*
+ * This area is used for LPx resume vector, only while LPx power state is
+ * active. At other times, the AVP may use this area for arbitrary purposes
+ */
+#define TEGRA_IRAM_LPx_RESUME_AREA	(TEGRA_IRAM_BASE + SZ_4K)
+
 #endif
diff --git a/arch/arm/mach-tegra/pm.c b/arch/arm/mach-tegra/pm.c
index ed294a04e1d3..36ed88af1cc1 100644
--- a/arch/arm/mach-tegra/pm.c
+++ b/arch/arm/mach-tegra/pm.c
@@ -263,10 +263,10 @@ static void tegra_suspend_enter_lp1(void)
 	tegra_pmc_suspend();
 
 	/* copy the reset vector & SDRAM shutdown code into IRAM */
-	memcpy(iram_save_addr, IO_ADDRESS(TEGRA_IRAM_CODE_AREA),
-		iram_save_size);
-	memcpy(IO_ADDRESS(TEGRA_IRAM_CODE_AREA), tegra_lp1_iram.start_addr,
+	memcpy(iram_save_addr, IO_ADDRESS(TEGRA_IRAM_LPx_RESUME_AREA),
 		iram_save_size);
+	memcpy(IO_ADDRESS(TEGRA_IRAM_LPx_RESUME_AREA),
+		tegra_lp1_iram.start_addr, iram_save_size);
 
 	*((u32 *)tegra_cpu_lp1_mask) = 1;
 }
@@ -276,7 +276,7 @@ static void tegra_suspend_exit_lp1(void)
 	tegra_pmc_resume();
 
 	/* restore IRAM */
-	memcpy(IO_ADDRESS(TEGRA_IRAM_CODE_AREA), iram_save_addr,
+	memcpy(IO_ADDRESS(TEGRA_IRAM_LPx_RESUME_AREA), iram_save_addr,
 		iram_save_size);
 
 	*(u32 *)tegra_cpu_lp1_mask = 0;
diff --git a/arch/arm/mach-tegra/reset.c b/arch/arm/mach-tegra/reset.c
index fd0bbf8a6c94..568f5bbf979d 100644
--- a/arch/arm/mach-tegra/reset.c
+++ b/arch/arm/mach-tegra/reset.c
@@ -82,7 +82,7 @@ void __init tegra_cpu_reset_handler_init(void)
 
 #ifdef CONFIG_PM_SLEEP
 	__tegra_cpu_reset_handler_data[TEGRA_RESET_STARTUP_LP1] =
-		TEGRA_IRAM_CODE_AREA;
+		TEGRA_IRAM_LPx_RESUME_AREA;
 	__tegra_cpu_reset_handler_data[TEGRA_RESET_STARTUP_LP2] =
 		virt_to_phys((void *)tegra_resume);
 #endif
diff --git a/arch/arm/mach-tegra/sleep-tegra20.S b/arch/arm/mach-tegra/sleep-tegra20.S
index 5c3bd11c9838..aaaf3abd2688 100644
--- a/arch/arm/mach-tegra/sleep-tegra20.S
+++ b/arch/arm/mach-tegra/sleep-tegra20.S
@@ -25,6 +25,7 @@
 #include <asm/cp15.h>
 #include <asm/cache.h>
 
+#include "irammap.h"
 #include "sleep.h"
 #include "flowctrl.h"
 
@@ -235,7 +236,7 @@ ENTRY(tegra20_sleep_core_finish)
 	mov32	r0, tegra20_tear_down_core
 	mov32	r1, tegra20_iram_start
 	sub	r0, r0, r1
-	mov32	r1, TEGRA_IRAM_CODE_AREA
+	mov32	r1, TEGRA_IRAM_LPx_RESUME_AREA
 	add	r0, r0, r1
 
 	mov	pc, r3
@@ -328,7 +329,7 @@ tegra20_iram_start:
  * The physical address of tegra_resume expected to be stored in
  * PMC_SCRATCH41.
  *
- * NOTE: THIS *MUST* BE RELOCATED TO TEGRA_IRAM_CODE_AREA.
+ * NOTE: THIS *MUST* BE RELOCATED TO TEGRA_IRAM_LPx_RESUME_AREA.
  */
 ENTRY(tegra20_lp1_reset)
 	/*
diff --git a/arch/arm/mach-tegra/sleep-tegra30.S b/arch/arm/mach-tegra/sleep-tegra30.S
index 63fa91b5fafb..c6fc15cb25df 100644
--- a/arch/arm/mach-tegra/sleep-tegra30.S
+++ b/arch/arm/mach-tegra/sleep-tegra30.S
@@ -20,6 +20,7 @@
 #include <asm/asm-offsets.h>
 #include <asm/cache.h>
 
+#include "irammap.h"
 #include "fuse.h"
 #include "sleep.h"
 #include "flowctrl.h"
@@ -262,7 +263,7 @@ ENTRY(tegra30_sleep_core_finish)
 	mov32	r0, tegra30_tear_down_core
 	mov32	r1, tegra30_iram_start
 	sub	r0, r0, r1
-	mov32	r1, TEGRA_IRAM_CODE_AREA
+	mov32	r1, TEGRA_IRAM_LPx_RESUME_AREA
 	add	r0, r0, r1
 
 	mov	pc, r3
@@ -314,7 +315,7 @@ tegra30_iram_start:
  * The physical address of tegra_resume expected to be stored in
  * PMC_SCRATCH41.
  *
- * NOTE: THIS *MUST* BE RELOCATED TO TEGRA_IRAM_CODE_AREA.
+ * NOTE: THIS *MUST* BE RELOCATED TO TEGRA_IRAM_LPx_RESUME_AREA.
  */
 ENTRY(tegra30_lp1_reset)
 	/*
-- 
cgit 


From 4cf6791a601676a8fc105cb88a2cf933d39e66df Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Tue, 20 Aug 2013 16:28:42 -0600
Subject: ARM: tegra: remove much of iomap.h

iomap.h defines the base address of Tegra peripherals. Most of this
information comes from device tree now, and hence can be deleted.
Entries are kept for various system peripherals that low-level code
(such as initial boot, system suspend/resume, debug) still requires.

Removing the values removes the temptation for someone to use them.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/mach-tegra/iomap.h | 150 --------------------------------------------
 1 file changed, 150 deletions(-)

diff --git a/arch/arm/mach-tegra/iomap.h b/arch/arm/mach-tegra/iomap.h
index 7e0c1809c2dc..cbee57fc4fd8 100644
--- a/arch/arm/mach-tegra/iomap.h
+++ b/arch/arm/mach-tegra/iomap.h
@@ -24,42 +24,12 @@
 #define TEGRA_IRAM_BASE			0x40000000
 #define TEGRA_IRAM_SIZE			SZ_256K
 
-#define TEGRA_HOST1X_BASE		0x50000000
-#define TEGRA_HOST1X_SIZE		0x24000
-
 #define TEGRA_ARM_PERIF_BASE		0x50040000
 #define TEGRA_ARM_PERIF_SIZE		SZ_8K
 
-#define TEGRA_ARM_PL310_BASE		0x50043000
-#define TEGRA_ARM_PL310_SIZE		SZ_4K
-
 #define TEGRA_ARM_INT_DIST_BASE		0x50041000
 #define TEGRA_ARM_INT_DIST_SIZE		SZ_4K
 
-#define TEGRA_MPE_BASE			0x54040000
-#define TEGRA_MPE_SIZE			SZ_256K
-
-#define TEGRA_VI_BASE			0x54080000
-#define TEGRA_VI_SIZE			SZ_256K
-
-#define TEGRA_ISP_BASE			0x54100000
-#define TEGRA_ISP_SIZE			SZ_256K
-
-#define TEGRA_DISPLAY_BASE		0x54200000
-#define TEGRA_DISPLAY_SIZE		SZ_256K
-
-#define TEGRA_DISPLAY2_BASE		0x54240000
-#define TEGRA_DISPLAY2_SIZE		SZ_256K
-
-#define TEGRA_HDMI_BASE			0x54280000
-#define TEGRA_HDMI_SIZE			SZ_256K
-
-#define TEGRA_GART_BASE			0x58000000
-#define TEGRA_GART_SIZE			SZ_32M
-
-#define TEGRA_RES_SEMA_BASE		0x60001000
-#define TEGRA_RES_SEMA_SIZE		SZ_4K
-
 #define TEGRA_PRIMARY_ICTLR_BASE	0x60004000
 #define TEGRA_PRIMARY_ICTLR_SIZE	SZ_64
 
@@ -96,51 +66,15 @@
 #define TEGRA_FLOW_CTRL_BASE		0x60007000
 #define TEGRA_FLOW_CTRL_SIZE		20
 
-#define TEGRA_AHB_DMA_BASE		0x60008000
-#define TEGRA_AHB_DMA_SIZE		SZ_4K
-
-#define TEGRA_AHB_DMA_CH0_BASE		0x60009000
-#define TEGRA_AHB_DMA_CH0_SIZE		32
-
-#define TEGRA_APB_DMA_BASE		0x6000A000
-#define TEGRA_APB_DMA_SIZE		SZ_4K
-
-#define TEGRA_APB_DMA_CH0_BASE		0x6000B000
-#define TEGRA_APB_DMA_CH0_SIZE		32
-
-#define TEGRA_AHB_GIZMO_BASE		0x6000C004
-#define TEGRA_AHB_GIZMO_SIZE		0x10C
-
 #define TEGRA_SB_BASE			0x6000C200
 #define TEGRA_SB_SIZE			256
 
-#define TEGRA_STATMON_BASE		0x6000C400
-#define TEGRA_STATMON_SIZE		SZ_1K
-
-#define TEGRA_GPIO_BASE			0x6000D000
-#define TEGRA_GPIO_SIZE			SZ_4K
-
 #define TEGRA_EXCEPTION_VECTORS_BASE    0x6000F000
 #define TEGRA_EXCEPTION_VECTORS_SIZE    SZ_4K
 
 #define TEGRA_APB_MISC_BASE		0x70000000
 #define TEGRA_APB_MISC_SIZE		SZ_4K
 
-#define TEGRA_APB_MISC_DAS_BASE		0x70000c00
-#define TEGRA_APB_MISC_DAS_SIZE		SZ_128
-
-#define TEGRA_AC97_BASE			0x70002000
-#define TEGRA_AC97_SIZE			SZ_512
-
-#define TEGRA_SPDIF_BASE		0x70002400
-#define TEGRA_SPDIF_SIZE		SZ_512
-
-#define TEGRA_I2S1_BASE			0x70002800
-#define TEGRA_I2S1_SIZE			SZ_256
-
-#define TEGRA_I2S2_BASE			0x70002A00
-#define TEGRA_I2S2_SIZE			SZ_256
-
 #define TEGRA_UARTA_BASE		0x70006000
 #define TEGRA_UARTA_SIZE		SZ_64
 
@@ -156,87 +90,15 @@
 #define TEGRA_UARTE_BASE		0x70006400
 #define TEGRA_UARTE_SIZE		SZ_256
 
-#define TEGRA_NAND_BASE			0x70008000
-#define TEGRA_NAND_SIZE			SZ_256
-
-#define TEGRA_HSMMC_BASE		0x70008500
-#define TEGRA_HSMMC_SIZE		SZ_256
-
-#define TEGRA_SNOR_BASE			0x70009000
-#define TEGRA_SNOR_SIZE			SZ_4K
-
-#define TEGRA_PWFM_BASE			0x7000A000
-#define TEGRA_PWFM_SIZE			SZ_256
-
-#define TEGRA_PWFM0_BASE		0x7000A000
-#define TEGRA_PWFM0_SIZE		4
-
-#define TEGRA_PWFM1_BASE		0x7000A010
-#define TEGRA_PWFM1_SIZE		4
-
-#define TEGRA_PWFM2_BASE		0x7000A020
-#define TEGRA_PWFM2_SIZE		4
-
-#define TEGRA_PWFM3_BASE		0x7000A030
-#define TEGRA_PWFM3_SIZE		4
-
-#define TEGRA_MIPI_BASE			0x7000B000
-#define TEGRA_MIPI_SIZE			SZ_256
-
-#define TEGRA_I2C_BASE			0x7000C000
-#define TEGRA_I2C_SIZE			SZ_256
-
-#define TEGRA_TWC_BASE			0x7000C100
-#define TEGRA_TWC_SIZE			SZ_256
-
-#define TEGRA_SPI_BASE			0x7000C380
-#define TEGRA_SPI_SIZE			48
-
-#define TEGRA_I2C2_BASE			0x7000C400
-#define TEGRA_I2C2_SIZE			SZ_256
-
-#define TEGRA_I2C3_BASE			0x7000C500
-#define TEGRA_I2C3_SIZE			SZ_256
-
-#define TEGRA_OWR_BASE			0x7000C600
-#define TEGRA_OWR_SIZE			80
-
-#define TEGRA_DVC_BASE			0x7000D000
-#define TEGRA_DVC_SIZE			SZ_512
-
-#define TEGRA_SPI1_BASE			0x7000D400
-#define TEGRA_SPI1_SIZE			SZ_512
-
-#define TEGRA_SPI2_BASE			0x7000D600
-#define TEGRA_SPI2_SIZE			SZ_512
-
-#define TEGRA_SPI3_BASE			0x7000D800
-#define TEGRA_SPI3_SIZE			SZ_512
-
-#define TEGRA_SPI4_BASE			0x7000DA00
-#define TEGRA_SPI4_SIZE			SZ_512
-
-#define TEGRA_RTC_BASE			0x7000E000
-#define TEGRA_RTC_SIZE			SZ_256
-
-#define TEGRA_KBC_BASE			0x7000E200
-#define TEGRA_KBC_SIZE			SZ_256
-
 #define TEGRA_PMC_BASE			0x7000E400
 #define TEGRA_PMC_SIZE			SZ_256
 
-#define TEGRA_MC_BASE			0x7000F000
-#define TEGRA_MC_SIZE			SZ_1K
-
 #define TEGRA_EMC_BASE			0x7000F400
 #define TEGRA_EMC_SIZE			SZ_1K
 
 #define TEGRA_FUSE_BASE			0x7000F800
 #define TEGRA_FUSE_SIZE			SZ_1K
 
-#define TEGRA_KFUSE_BASE		0x7000FC00
-#define TEGRA_KFUSE_SIZE		SZ_1K
-
 #define TEGRA_EMC0_BASE			0x7001A000
 #define TEGRA_EMC0_SIZE			SZ_2K
 
@@ -246,18 +108,6 @@
 #define TEGRA_CSITE_BASE		0x70040000
 #define TEGRA_CSITE_SIZE		SZ_256K
 
-#define TEGRA_SDMMC1_BASE		0xC8000000
-#define TEGRA_SDMMC1_SIZE		SZ_512
-
-#define TEGRA_SDMMC2_BASE		0xC8000200
-#define TEGRA_SDMMC2_SIZE		SZ_512
-
-#define TEGRA_SDMMC3_BASE		0xC8000400
-#define TEGRA_SDMMC3_SIZE		SZ_512
-
-#define TEGRA_SDMMC4_BASE		0xC8000600
-#define TEGRA_SDMMC4_SIZE		SZ_512
-
 /* On TEGRA, many peripherals are very closely packed in
  * two 256MB io windows (that actually only use about 64KB
  * at the start of each).
-- 
cgit 


From 5875df17a8b645f2038cc7ce5b8344b1fc923277 Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Fri, 13 Sep 2013 12:18:44 -0600
Subject: ARM: tegra: make tegra_init_fuse() __init

It's a one-time initialization function, called early during boot.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/mach-tegra/fuse.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-tegra/fuse.c b/arch/arm/mach-tegra/fuse.c
index e035cd284a6e..f3b5d0d7b620 100644
--- a/arch/arm/mach-tegra/fuse.c
+++ b/arch/arm/mach-tegra/fuse.c
@@ -112,7 +112,7 @@ u32 tegra_read_chipid(void)
 	return readl_relaxed(IO_ADDRESS(TEGRA_APB_MISC_BASE) + 0x804);
 }
 
-void tegra_init_fuse(void)
+void __init tegra_init_fuse(void)
 {
 	u32 id;
 
-- 
cgit 


From e579ed4f446e64748a2d26eed8f8b28f728495bd Mon Sep 17 00:00:00 2001
From: Bob Peterson <rpeterso@redhat.com>
Date: Tue, 17 Sep 2013 13:12:15 -0400
Subject: GFS2: Introduce rbm field bii

This is a respin of the original patch. As Steve pointed out, the
introduction of field bii makes it easy to eliminate bi itself.
This revised patch does just that, replacing bi with bii.

This patch adds a new field to the rbm structure, called bii,
which is an index into the array of bitmaps for an rgrp.
This replaces *bi which was a pointer to the bitmap.
This is being done for further optimizations.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---
 fs/gfs2/incore.h |  12 +++++--
 fs/gfs2/rgrp.c   | 107 +++++++++++++++++++++++++++++--------------------------
 2 files changed, 65 insertions(+), 54 deletions(-)

diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index f1a3243dfaf2..8c8f110d8e35 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -102,19 +102,25 @@ struct gfs2_rgrpd {
 
 struct gfs2_rbm {
 	struct gfs2_rgrpd *rgd;
-	struct gfs2_bitmap *bi;	/* Bitmap must belong to the rgd */
 	u32 offset;		/* The offset is bitmap relative */
+	int bii;		/* Bitmap index */
 };
 
+static inline struct gfs2_bitmap *rbm_bi(const struct gfs2_rbm *rbm)
+{
+	return rbm->rgd->rd_bits + rbm->bii;
+}
+
 static inline u64 gfs2_rbm_to_block(const struct gfs2_rbm *rbm)
 {
-	return rbm->rgd->rd_data0 + (rbm->bi->bi_start * GFS2_NBBY) + rbm->offset;
+	return rbm->rgd->rd_data0 + (rbm_bi(rbm)->bi_start * GFS2_NBBY) +
+		rbm->offset;
 }
 
 static inline bool gfs2_rbm_eq(const struct gfs2_rbm *rbm1,
 			       const struct gfs2_rbm *rbm2)
 {
-	return (rbm1->rgd == rbm2->rgd) && (rbm1->bi == rbm2->bi) && 
+	return (rbm1->rgd == rbm2->rgd) && (rbm1->bii == rbm2->bii) &&
 	       (rbm1->offset == rbm2->offset);
 }
 
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 8e5003820aa7..dd3c4d3d7f41 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -81,11 +81,12 @@ static inline void gfs2_setbit(const struct gfs2_rbm *rbm, bool do_clone,
 			       unsigned char new_state)
 {
 	unsigned char *byte1, *byte2, *end, cur_state;
-	unsigned int buflen = rbm->bi->bi_len;
+	struct gfs2_bitmap *bi = rbm_bi(rbm);
+	unsigned int buflen = bi->bi_len;
 	const unsigned int bit = (rbm->offset % GFS2_NBBY) * GFS2_BIT_SIZE;
 
-	byte1 = rbm->bi->bi_bh->b_data + rbm->bi->bi_offset + (rbm->offset / GFS2_NBBY);
-	end = rbm->bi->bi_bh->b_data + rbm->bi->bi_offset + buflen;
+	byte1 = bi->bi_bh->b_data + bi->bi_offset + (rbm->offset / GFS2_NBBY);
+	end = bi->bi_bh->b_data + bi->bi_offset + buflen;
 
 	BUG_ON(byte1 >= end);
 
@@ -95,18 +96,17 @@ static inline void gfs2_setbit(const struct gfs2_rbm *rbm, bool do_clone,
 		printk(KERN_WARNING "GFS2: buf_blk = 0x%x old_state=%d, "
 		       "new_state=%d\n", rbm->offset, cur_state, new_state);
 		printk(KERN_WARNING "GFS2: rgrp=0x%llx bi_start=0x%x\n",
-		       (unsigned long long)rbm->rgd->rd_addr,
-		       rbm->bi->bi_start);
+		       (unsigned long long)rbm->rgd->rd_addr, bi->bi_start);
 		printk(KERN_WARNING "GFS2: bi_offset=0x%x bi_len=0x%x\n",
-		       rbm->bi->bi_offset, rbm->bi->bi_len);
+		       bi->bi_offset, bi->bi_len);
 		dump_stack();
 		gfs2_consist_rgrpd(rbm->rgd);
 		return;
 	}
 	*byte1 ^= (cur_state ^ new_state) << bit;
 
-	if (do_clone && rbm->bi->bi_clone) {
-		byte2 = rbm->bi->bi_clone + rbm->bi->bi_offset + (rbm->offset / GFS2_NBBY);
+	if (do_clone && bi->bi_clone) {
+		byte2 = bi->bi_clone + bi->bi_offset + (rbm->offset / GFS2_NBBY);
 		cur_state = (*byte2 >> bit) & GFS2_BIT_MASK;
 		*byte2 ^= (cur_state ^ new_state) << bit;
 	}
@@ -121,7 +121,8 @@ static inline void gfs2_setbit(const struct gfs2_rbm *rbm, bool do_clone,
 
 static inline u8 gfs2_testbit(const struct gfs2_rbm *rbm)
 {
-	const u8 *buffer = rbm->bi->bi_bh->b_data + rbm->bi->bi_offset;
+	struct gfs2_bitmap *bi = rbm_bi(rbm);
+	const u8 *buffer = bi->bi_bh->b_data + bi->bi_offset;
 	const u8 *byte;
 	unsigned int bit;
 
@@ -252,25 +253,23 @@ static u32 gfs2_bitfit(const u8 *buf, const unsigned int len,
 static int gfs2_rbm_from_block(struct gfs2_rbm *rbm, u64 block)
 {
 	u64 rblock = block - rbm->rgd->rd_data0;
-	u32 x;
 
 	if (WARN_ON_ONCE(rblock > UINT_MAX))
 		return -EINVAL;
 	if (block >= rbm->rgd->rd_data0 + rbm->rgd->rd_data)
 		return -E2BIG;
 
-	rbm->bi = rbm->rgd->rd_bits;
+	rbm->bii = 0;
 	rbm->offset = (u32)(rblock);
 	/* Check if the block is within the first block */
-	if (rbm->offset < rbm->bi->bi_blocks)
+	if (rbm->offset < rbm_bi(rbm)->bi_blocks)
 		return 0;
 
 	/* Adjust for the size diff between gfs2_meta_header and gfs2_rgrp */
 	rbm->offset += (sizeof(struct gfs2_rgrp) -
 			sizeof(struct gfs2_meta_header)) * GFS2_NBBY;
-	x = rbm->offset / rbm->rgd->rd_sbd->sd_blocks_per_bitmap;
-	rbm->offset -= x * rbm->rgd->rd_sbd->sd_blocks_per_bitmap;
-	rbm->bi += x;
+	rbm->bii = rbm->offset / rbm->rgd->rd_sbd->sd_blocks_per_bitmap;
+	rbm->offset -= rbm->bii * rbm->rgd->rd_sbd->sd_blocks_per_bitmap;
 	return 0;
 }
 
@@ -328,6 +327,7 @@ static u32 gfs2_free_extlen(const struct gfs2_rbm *rrbm, u32 len)
 	u32 chunk_size;
 	u8 *ptr, *start, *end;
 	u64 block;
+	struct gfs2_bitmap *bi;
 
 	if (n_unaligned &&
 	    gfs2_unaligned_extlen(&rbm, 4 - n_unaligned, &len))
@@ -336,11 +336,12 @@ static u32 gfs2_free_extlen(const struct gfs2_rbm *rrbm, u32 len)
 	n_unaligned = len & 3;
 	/* Start is now byte aligned */
 	while (len > 3) {
-		start = rbm.bi->bi_bh->b_data;
-		if (rbm.bi->bi_clone)
-			start = rbm.bi->bi_clone;
-		end = start + rbm.bi->bi_bh->b_size;
-		start += rbm.bi->bi_offset;
+		bi = rbm_bi(&rbm);
+		start = bi->bi_bh->b_data;
+		if (bi->bi_clone)
+			start = bi->bi_clone;
+		end = start + bi->bi_bh->b_size;
+		start += bi->bi_offset;
 		BUG_ON(rbm.offset & 3);
 		start += (rbm.offset / GFS2_NBBY);
 		bytes = min_t(u32, len / GFS2_NBBY, (end - start));
@@ -605,11 +606,13 @@ static void __rs_deltree(struct gfs2_blkreserv *rs)
 	RB_CLEAR_NODE(&rs->rs_node);
 
 	if (rs->rs_free) {
+		struct gfs2_bitmap *bi = rbm_bi(&rs->rs_rbm);
+
 		/* return reserved blocks to the rgrp */
 		BUG_ON(rs->rs_rbm.rgd->rd_reserved < rs->rs_free);
 		rs->rs_rbm.rgd->rd_reserved -= rs->rs_free;
 		rs->rs_free = 0;
-		clear_bit(GBF_FULL, &rs->rs_rbm.bi->bi_flags);
+		clear_bit(GBF_FULL, &bi->bi_flags);
 		smp_mb__after_clear_bit();
 	}
 }
@@ -1558,14 +1561,14 @@ static int gfs2_rbm_find(struct gfs2_rbm *rbm, u8 state, u32 minext,
 			 const struct gfs2_inode *ip, bool nowrap)
 {
 	struct buffer_head *bh;
-	struct gfs2_bitmap *initial_bi;
+	int initial_bii;
 	u32 initial_offset;
 	u32 offset;
 	u8 *buffer;
-	int index;
 	int n = 0;
 	int iters = rbm->rgd->rd_length;
 	int ret;
+	struct gfs2_bitmap *bi;
 
 	/* If we are not starting at the beginning of a bitmap, then we
 	 * need to add one to the bitmap count to ensure that we search
@@ -1575,52 +1578,53 @@ static int gfs2_rbm_find(struct gfs2_rbm *rbm, u8 state, u32 minext,
 		iters++;
 
 	while(1) {
-		if (test_bit(GBF_FULL, &rbm->bi->bi_flags) &&
+		bi = rbm_bi(rbm);
+		if (test_bit(GBF_FULL, &bi->bi_flags) &&
 		    (state == GFS2_BLKST_FREE))
 			goto next_bitmap;
 
-		bh = rbm->bi->bi_bh;
-		buffer = bh->b_data + rbm->bi->bi_offset;
+		bh = bi->bi_bh;
+		buffer = bh->b_data + bi->bi_offset;
 		WARN_ON(!buffer_uptodate(bh));
-		if (state != GFS2_BLKST_UNLINKED && rbm->bi->bi_clone)
-			buffer = rbm->bi->bi_clone + rbm->bi->bi_offset;
+		if (state != GFS2_BLKST_UNLINKED && bi->bi_clone)
+			buffer = bi->bi_clone + bi->bi_offset;
 		initial_offset = rbm->offset;
-		offset = gfs2_bitfit(buffer, rbm->bi->bi_len, rbm->offset, state);
+		offset = gfs2_bitfit(buffer, bi->bi_len, rbm->offset, state);
 		if (offset == BFITNOENT)
 			goto bitmap_full;
 		rbm->offset = offset;
 		if (ip == NULL)
 			return 0;
 
-		initial_bi = rbm->bi;
+		initial_bii = rbm->bii;
 		ret = gfs2_reservation_check_and_update(rbm, ip, minext);
 		if (ret == 0)
 			return 0;
 		if (ret > 0) {
-			n += (rbm->bi - initial_bi);
+			n += (rbm->bii - initial_bii);
 			goto next_iter;
 		}
 		if (ret == -E2BIG) {
-			index = 0;
+			rbm->bii = 0;
 			rbm->offset = 0;
-			n += (rbm->bi - initial_bi);
+			n += (rbm->bii - initial_bii);
 			goto res_covered_end_of_rgrp;
 		}
 		return ret;
 
 bitmap_full:	/* Mark bitmap as full and fall through */
-		if ((state == GFS2_BLKST_FREE) && initial_offset == 0)
-			set_bit(GBF_FULL, &rbm->bi->bi_flags);
+		if ((state == GFS2_BLKST_FREE) && initial_offset == 0) {
+			struct gfs2_bitmap *bi = rbm_bi(rbm);
+			set_bit(GBF_FULL, &bi->bi_flags);
+		}
 
 next_bitmap:	/* Find next bitmap in the rgrp */
 		rbm->offset = 0;
-		index = rbm->bi - rbm->rgd->rd_bits;
-		index++;
-		if (index == rbm->rgd->rd_length)
-			index = 0;
+		rbm->bii++;
+		if (rbm->bii == rbm->rgd->rd_length)
+			rbm->bii = 0;
 res_covered_end_of_rgrp:
-		rbm->bi = &rbm->rgd->rd_bits[index];
-		if ((index == 0) && nowrap)
+		if ((rbm->bii == 0) && nowrap)
 			break;
 		n++;
 next_iter:
@@ -1649,7 +1653,7 @@ static void try_rgrp_unlink(struct gfs2_rgrpd *rgd, u64 *last_unlinked, u64 skip
 	struct gfs2_inode *ip;
 	int error;
 	int found = 0;
-	struct gfs2_rbm rbm = { .rgd = rgd, .bi = rgd->rd_bits, .offset = 0 };
+	struct gfs2_rbm rbm = { .rgd = rgd, .bii = 0, .offset = 0 };
 
 	while (1) {
 		down_write(&sdp->sd_log_flush_lock);
@@ -1976,14 +1980,14 @@ static void gfs2_alloc_extent(const struct gfs2_rbm *rbm, bool dinode,
 
 	*n = 1;
 	block = gfs2_rbm_to_block(rbm);
-	gfs2_trans_add_meta(rbm->rgd->rd_gl, rbm->bi->bi_bh);
+	gfs2_trans_add_meta(rbm->rgd->rd_gl, rbm_bi(rbm)->bi_bh);
 	gfs2_setbit(rbm, true, dinode ? GFS2_BLKST_DINODE : GFS2_BLKST_USED);
 	block++;
 	while (*n < elen) {
 		ret = gfs2_rbm_from_block(&pos, block);
 		if (ret || gfs2_testbit(&pos) != GFS2_BLKST_FREE)
 			break;
-		gfs2_trans_add_meta(pos.rgd->rd_gl, pos.bi->bi_bh);
+		gfs2_trans_add_meta(pos.rgd->rd_gl, rbm_bi(&pos)->bi_bh);
 		gfs2_setbit(&pos, true, GFS2_BLKST_USED);
 		(*n)++;
 		block++;
@@ -2004,6 +2008,7 @@ static struct gfs2_rgrpd *rgblk_free(struct gfs2_sbd *sdp, u64 bstart,
 				     u32 blen, unsigned char new_state)
 {
 	struct gfs2_rbm rbm;
+	struct gfs2_bitmap *bi;
 
 	rbm.rgd = gfs2_blk2rgrpd(sdp, bstart, 1);
 	if (!rbm.rgd) {
@@ -2014,15 +2019,15 @@ static struct gfs2_rgrpd *rgblk_free(struct gfs2_sbd *sdp, u64 bstart,
 
 	while (blen--) {
 		gfs2_rbm_from_block(&rbm, bstart);
+		bi = rbm_bi(&rbm);
 		bstart++;
-		if (!rbm.bi->bi_clone) {
-			rbm.bi->bi_clone = kmalloc(rbm.bi->bi_bh->b_size,
-						   GFP_NOFS | __GFP_NOFAIL);
-			memcpy(rbm.bi->bi_clone + rbm.bi->bi_offset,
-			       rbm.bi->bi_bh->b_data + rbm.bi->bi_offset,
-			       rbm.bi->bi_len);
+		if (!bi->bi_clone) {
+			bi->bi_clone = kmalloc(bi->bi_bh->b_size,
+					       GFP_NOFS | __GFP_NOFAIL);
+			memcpy(bi->bi_clone + bi->bi_offset,
+			       bi->bi_bh->b_data + bi->bi_offset, bi->bi_len);
 		}
-		gfs2_trans_add_meta(rbm.rgd->rd_gl, rbm.bi->bi_bh);
+		gfs2_trans_add_meta(rbm.rgd->rd_gl, bi->bi_bh);
 		gfs2_setbit(&rbm, false, new_state);
 	}
 
-- 
cgit 


From 149ed7f51e279916e7a7a1eef5cec50da67d7cfe Mon Sep 17 00:00:00 2001
From: Bob Peterson <rpeterso@redhat.com>
Date: Tue, 17 Sep 2013 13:14:35 -0400
Subject: GFS2: new function gfs2_rbm_incr

Since the previous patch eliminated bi in favor of bii, this follow-on
patch needed to be adjusted accordingly. Here is the revised version.

This patch adds a new function, gfs2_rbm_incr, which increments
an rbm structure. This is more efficient than calling gfs2_rbm_to_block,
incrementing, then calling gfs2_rbm_from_block.

Signed-off-by: Bob Peterson <rpeterso@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---
 fs/gfs2/rgrp.c | 30 +++++++++++++++++++++++++++---
 1 file changed, 27 insertions(+), 3 deletions(-)

diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index dd3c4d3d7f41..285dd363199a 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -273,6 +273,32 @@ static int gfs2_rbm_from_block(struct gfs2_rbm *rbm, u64 block)
 	return 0;
 }
 
+/**
+ * gfs2_rbm_incr - increment an rbm structure
+ * @rbm: The rbm with rgd already set correctly
+ *
+ * This function takes an existing rbm structure and increments it to the next
+ * viable block offset.
+ *
+ * Returns: If incrementing the offset would cause the rbm to go past the
+ *          end of the rgrp, true is returned, otherwise false.
+ *
+ */
+
+static bool gfs2_rbm_incr(struct gfs2_rbm *rbm)
+{
+	if (rbm->offset + 1 < rbm_bi(rbm)->bi_blocks) { /* in the same bitmap */
+		rbm->offset++;
+		return false;
+	}
+	if (rbm->bii == rbm->rgd->rd_length - 1) /* at the last bitmap */
+		return true;
+
+	rbm->offset = 0;
+	rbm->bii++;
+	return false;
+}
+
 /**
  * gfs2_unaligned_extlen - Look for free blocks which are not byte aligned
  * @rbm: Position to search (value/result)
@@ -284,7 +310,6 @@ static int gfs2_rbm_from_block(struct gfs2_rbm *rbm, u64 block)
 
 static bool gfs2_unaligned_extlen(struct gfs2_rbm *rbm, u32 n_unaligned, u32 *len)
 {
-	u64 block;
 	u32 n;
 	u8 res;
 
@@ -295,8 +320,7 @@ static bool gfs2_unaligned_extlen(struct gfs2_rbm *rbm, u32 n_unaligned, u32 *le
 		(*len)--;
 		if (*len == 0)
 			return true;
-		block = gfs2_rbm_to_block(rbm);
-		if (gfs2_rbm_from_block(rbm, block + 1))
+		if (gfs2_rbm_incr(rbm))
 			return true;
 	}
 
-- 
cgit 


From bcf25567ecec6cb0a8078cbf68969baed047fdf4 Mon Sep 17 00:00:00 2001
From: Jyri Sarha <jsarha@ti.com>
Date: Tue, 17 Sep 2013 12:26:00 +0300
Subject: ASoC: davinci-evm: Move sysclk logic away from evm_hw_params

The sysclk rate does not change runtime so it should be initialized at
init time.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/davinci/davinci-evm.c | 64 ++++++++++++++++++++++++++++-------------
 1 file changed, 44 insertions(+), 20 deletions(-)

diff --git a/sound/soc/davinci/davinci-evm.c b/sound/soc/davinci/davinci-evm.c
index fd7c45b9ed5a..2f8161c1d5f0 100644
--- a/sound/soc/davinci/davinci-evm.c
+++ b/sound/soc/davinci/davinci-evm.c
@@ -27,6 +27,10 @@
 #include "davinci-i2s.h"
 #include "davinci-mcasp.h"
 
+struct snd_soc_card_drvdata_davinci {
+	unsigned sysclk;
+};
+
 #define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \
 		SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF)
 static int evm_hw_params(struct snd_pcm_substream *substream,
@@ -35,27 +39,11 @@ static int evm_hw_params(struct snd_pcm_substream *substream,
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct snd_soc_codec *codec = rtd->codec;
+	struct snd_soc_card *soc_card = codec->card;
 	int ret = 0;
-	unsigned sysclk;
-
-	/* ASP1 on DM355 EVM is clocked by an external oscillator */
-	if (machine_is_davinci_dm355_evm() || machine_is_davinci_dm6467_evm() ||
-	    machine_is_davinci_dm365_evm())
-		sysclk = 27000000;
-
-	/* ASP0 in DM6446 EVM is clocked by U55, as configured by
-	 * board-dm644x-evm.c using GPIOs from U18.  There are six
-	 * options; here we "know" we use a 48 KHz sample rate.
-	 */
-	else if (machine_is_davinci_evm())
-		sysclk = 12288000;
-
-	else if (machine_is_davinci_da830_evm() ||
-				machine_is_davinci_da850_evm())
-		sysclk = 24576000;
-
-	else
-		return -EINVAL;
+	unsigned sysclk = ((struct snd_soc_card_drvdata_davinci *)
+			   snd_soc_card_get_drvdata(soc_card))->sysclk;
 
 	/* set codec DAI configuration */
 	ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
@@ -243,35 +231,65 @@ static struct snd_soc_dai_link da850_evm_dai = {
 };
 
 /* davinci dm6446 evm audio machine driver */
+/*
+ * ASP0 in DM6446 EVM is clocked by U55, as configured by
+ * board-dm644x-evm.c using GPIOs from U18.  There are six
+ * options; here we "know" we use a 48 KHz sample rate.
+ */
+static struct snd_soc_card_drvdata_davinci dm6446_snd_soc_card_drvdata = {
+	.sysclk = 12288000,
+};
+
 static struct snd_soc_card dm6446_snd_soc_card_evm = {
 	.name = "DaVinci DM6446 EVM",
 	.owner = THIS_MODULE,
 	.dai_link = &dm6446_evm_dai,
 	.num_links = 1,
+	.drvdata = &dm6446_snd_soc_card_drvdata,
 };
 
 /* davinci dm355 evm audio machine driver */
+/* ASP1 on DM355 EVM is clocked by an external oscillator */
+static struct snd_soc_card_drvdata_davinci dm355_snd_soc_card_drvdata = {
+	.sysclk = 27000000,
+};
+
 static struct snd_soc_card dm355_snd_soc_card_evm = {
 	.name = "DaVinci DM355 EVM",
 	.owner = THIS_MODULE,
 	.dai_link = &dm355_evm_dai,
 	.num_links = 1,
+	.drvdata = &dm355_snd_soc_card_drvdata,
 };
 
 /* davinci dm365 evm audio machine driver */
+static struct snd_soc_card_drvdata_davinci dm365_snd_soc_card_drvdata = {
+	.sysclk = 27000000,
+};
+
 static struct snd_soc_card dm365_snd_soc_card_evm = {
 	.name = "DaVinci DM365 EVM",
 	.owner = THIS_MODULE,
 	.dai_link = &dm365_evm_dai,
 	.num_links = 1,
+	.drvdata = &dm365_snd_soc_card_drvdata,
 };
 
 /* davinci dm6467 evm audio machine driver */
+static struct snd_soc_card_drvdata_davinci dm6467_snd_soc_card_drvdata = {
+	.sysclk = 27000000,
+};
+
 static struct snd_soc_card dm6467_snd_soc_card_evm = {
 	.name = "DaVinci DM6467 EVM",
 	.owner = THIS_MODULE,
 	.dai_link = dm6467_evm_dai,
 	.num_links = ARRAY_SIZE(dm6467_evm_dai),
+	.drvdata = &dm6467_snd_soc_card_drvdata,
+};
+
+static struct snd_soc_card_drvdata_davinci da830_snd_soc_card_drvdata = {
+	.sysclk = 24576000,
 };
 
 static struct snd_soc_card da830_snd_soc_card = {
@@ -279,6 +297,11 @@ static struct snd_soc_card da830_snd_soc_card = {
 	.owner = THIS_MODULE,
 	.dai_link = &da830_evm_dai,
 	.num_links = 1,
+	.drvdata = &da830_snd_soc_card_drvdata,
+};
+
+static struct snd_soc_card_drvdata_davinci da850_snd_soc_card_drvdata = {
+	.sysclk = 24576000,
 };
 
 static struct snd_soc_card da850_snd_soc_card = {
@@ -286,6 +309,7 @@ static struct snd_soc_card da850_snd_soc_card = {
 	.owner = THIS_MODULE,
 	.dai_link = &da850_evm_dai,
 	.num_links = 1,
+	.drvdata = &da850_snd_soc_card_drvdata,
 };
 
 static struct platform_device *evm_snd_device;
-- 
cgit 


From 91800f0e90050a4db4c77e940796f501e02af8be Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 18:55:53 +0100
Subject: spi/s3c64xx: Use managed registration

Also improve the error reporting on failure and remove a duplicate put.
This provides a small code saving.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-s3c64xx.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 20dd71237d3b..8bed27a4108c 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -1428,9 +1428,9 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
 	       S3C64XX_SPI_INT_TX_OVERRUN_EN | S3C64XX_SPI_INT_TX_UNDERRUN_EN,
 	       sdd->regs + S3C64XX_SPI_INT_EN);
 
-	if (spi_register_master(master)) {
-		dev_err(&pdev->dev, "cannot register SPI master\n");
-		ret = -EBUSY;
+	ret = devm_spi_register_master(&pdev->dev, master);
+	if (ret != 0) {
+		dev_err(&pdev->dev, "cannot register SPI master: %d\n", ret);
 		goto err3;
 	}
 
@@ -1461,16 +1461,12 @@ static int s3c64xx_spi_remove(struct platform_device *pdev)
 
 	pm_runtime_disable(&pdev->dev);
 
-	spi_unregister_master(master);
-
 	writel(0, sdd->regs + S3C64XX_SPI_INT_EN);
 
 	clk_disable_unprepare(sdd->src_clk);
 
 	clk_disable_unprepare(sdd->clk);
 
-	spi_master_put(master);
-
 	return 0;
 }
 
-- 
cgit 


From 5fb7680bd0035525eb1534001f7b7f2ca06a8ab7 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 17 Sep 2013 10:41:36 +0530
Subject: ASoC: SPEAr spdif_in: Use devm_snd_soc_register_component

devm_snd_soc_register_component makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/spear/spdif_in.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/sound/soc/spear/spdif_in.c b/sound/soc/spear/spdif_in.c
index 63acfeb4b69d..21a8c954af1c 100644
--- a/sound/soc/spear/spdif_in.c
+++ b/sound/soc/spear/spdif_in.c
@@ -257,20 +257,12 @@ static int spdif_in_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	return snd_soc_register_component(&pdev->dev, &spdif_in_component,
-					 &spdif_in_dai, 1);
-}
-
-static int spdif_in_remove(struct platform_device *pdev)
-{
-	snd_soc_unregister_component(&pdev->dev);
-
-	return 0;
+	return devm_snd_soc_register_component(&pdev->dev, &spdif_in_component,
+					       &spdif_in_dai, 1);
 }
 
 static struct platform_driver spdif_in_driver = {
 	.probe		= spdif_in_probe,
-	.remove		= spdif_in_remove,
 	.driver		= {
 		.name	= "spdif-in",
 		.owner	= THIS_MODULE,
-- 
cgit 


From 77aea716872fd976cbb9706b4588cf1fb9d52826 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 17 Sep 2013 10:41:37 +0530
Subject: ASoC: SPEAr spdif_out: Use devm_snd_soc_register_component

devm_snd_soc_register_component makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/spear/spdif_out.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/sound/soc/spear/spdif_out.c b/sound/soc/spear/spdif_out.c
index 2fdf68c98d22..70fc4d687529 100644
--- a/sound/soc/spear/spdif_out.c
+++ b/sound/soc/spear/spdif_out.c
@@ -307,18 +307,11 @@ static int spdif_out_probe(struct platform_device *pdev)
 
 	dev_set_drvdata(&pdev->dev, host);
 
-	ret = snd_soc_register_component(&pdev->dev, &spdif_out_component,
-					 &spdif_out_dai, 1);
+	ret = devm_snd_soc_register_component(&pdev->dev, &spdif_out_component,
+					      &spdif_out_dai, 1);
 	return ret;
 }
 
-static int spdif_out_remove(struct platform_device *pdev)
-{
-	snd_soc_unregister_component(&pdev->dev);
-
-	return 0;
-}
-
 #ifdef CONFIG_PM
 static int spdif_out_suspend(struct device *dev)
 {
@@ -357,7 +350,6 @@ static SIMPLE_DEV_PM_OPS(spdif_out_dev_pm_ops, spdif_out_suspend, \
 
 static struct platform_driver spdif_out_driver = {
 	.probe		= spdif_out_probe,
-	.remove		= spdif_out_remove,
 	.driver		= {
 		.name	= "spdif-out",
 		.owner	= THIS_MODULE,
-- 
cgit 


From c27769ef6e118d355922d9c4a530b9d68405b39b Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Wed, 18 Sep 2013 13:12:29 +0200
Subject: gpio: pcf857x: only use set_irq_flags() on ARM

As per the pattern from other GPIO drivers, use set_irq_flags()
on ARM only, use irq_set_noprobe() on other archs.

Also rename the argument "virq" to just "irq", this IRQ isn't
any more "virtual" than any other Linux IRQ number, we use
"hwirq" for the actual hw-numbers, "virq" is just bogus.

Cc: George Cherian <george.cherian@ti.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-pcf857x.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-pcf857x.c b/drivers/gpio/gpio-pcf857x.c
index 815944db37bf..54725a632660 100644
--- a/drivers/gpio/gpio-pcf857x.c
+++ b/drivers/gpio/gpio-pcf857x.c
@@ -195,15 +195,19 @@ static irqreturn_t pcf857x_irq(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-static int pcf857x_irq_domain_map(struct irq_domain *domain, unsigned int virq,
+static int pcf857x_irq_domain_map(struct irq_domain *domain, unsigned int irq,
 				 irq_hw_number_t hw)
 {
 	struct pcf857x *gpio = domain->host_data;
 
-	irq_set_chip_and_handler(virq,
+	irq_set_chip_and_handler(irq,
 				 &dummy_irq_chip,
 				 handle_level_irq);
-	set_irq_flags(virq, IRQF_VALID);
+#ifdef CONFIG_ARM
+	set_irq_flags(irq, IRQF_VALID);
+#else
+	irq_set_noprobe(irq);
+#endif
 	gpio->irq_mapped |= (1 << hw);
 
 	return 0;
-- 
cgit 


From be7c5926c22403b6f5895a10a73145925dd560a9 Mon Sep 17 00:00:00 2001
From: Jyri Sarha <jsarha@ti.com>
Date: Tue, 17 Sep 2013 12:26:06 +0300
Subject: ASoC: tlv320aic3x: Add regulators to DT bindings document

Add regulator properties to tlv320aic3x DT bindings document.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 Documentation/devicetree/bindings/sound/tlv320aic3x.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/tlv320aic3x.txt b/Documentation/devicetree/bindings/sound/tlv320aic3x.txt
index 705a6b156c6c..ba2647751aa5 100644
--- a/Documentation/devicetree/bindings/sound/tlv320aic3x.txt
+++ b/Documentation/devicetree/bindings/sound/tlv320aic3x.txt
@@ -24,10 +24,17 @@ Optional properties:
 	3 - MICBIAS output is connected to AVDD,
 	If this node is not mentioned or if the value is incorrect, then MicBias
 	is powered down.
+- AVDD-supply, IOVDD-supply, DRVDD-supply, DVDD-supply : power supplies for the
+  device as covered in Documentation/devicetree/bindings/regulator/regulator.txt
 
 Example:
 
 tlv320aic3x: tlv320aic3x@1b {
 	compatible = "ti,tlv320aic3x";
 	reg = <0x1b>;
+
+	AVDD-supply = <&regulator>;
+	IOVDD-supply = <&regulator>;
+	DRVDD-supply = <&regulator>;
+	DVDD-supply = <&regulator>;
 };
-- 
cgit 


From c9f3de41b93ae61da4cd10611e446a4b916245d2 Mon Sep 17 00:00:00 2001
From: Jyri Sarha <jsarha@ti.com>
Date: Tue, 17 Sep 2013 12:26:07 +0300
Subject: ASoC: tlv320aic3x: Add codec pins to DT bindings document

Add list of codec pins to tlv320aic3x DT bindings document.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 .../devicetree/bindings/sound/tlv320aic3x.txt         | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/tlv320aic3x.txt b/Documentation/devicetree/bindings/sound/tlv320aic3x.txt
index ba2647751aa5..5e6040c2c2e9 100644
--- a/Documentation/devicetree/bindings/sound/tlv320aic3x.txt
+++ b/Documentation/devicetree/bindings/sound/tlv320aic3x.txt
@@ -27,6 +27,25 @@ Optional properties:
 - AVDD-supply, IOVDD-supply, DRVDD-supply, DVDD-supply : power supplies for the
   device as covered in Documentation/devicetree/bindings/regulator/regulator.txt
 
+CODEC output pins:
+  * LLOUT
+  * RLOUT
+  * MONO_LOUT
+  * HPLOUT
+  * HPROUT
+  * HPLCOM
+  * HPRCOM
+
+CODEC input pins:
+  * MIC3L
+  * MIC3R
+  * LINE1L
+  * LINE2L
+  * LINE1R
+  * LINE2R
+
+The pins can be used in referring sound node's audio-routing property.
+
 Example:
 
 tlv320aic3x: tlv320aic3x@1b {
-- 
cgit 


From 221a27c240343b39052c05baa64deace845801ff Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 16 Sep 2013 08:32:54 -0700
Subject: Input: cypress_ps2 - remove casting the return value which is a void
 pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/mouse/cypress_ps2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/mouse/cypress_ps2.c b/drivers/input/mouse/cypress_ps2.c
index f51765fff054..ef651ccf130f 100644
--- a/drivers/input/mouse/cypress_ps2.c
+++ b/drivers/input/mouse/cypress_ps2.c
@@ -679,7 +679,7 @@ int cypress_init(struct psmouse *psmouse)
 {
 	struct cytp_data *cytp;
 
-	cytp = (struct cytp_data *)kzalloc(sizeof(struct cytp_data), GFP_KERNEL);
+	cytp = kzalloc(sizeof(struct cytp_data), GFP_KERNEL);
 	psmouse->private = (void *)cytp;
 	if (cytp == NULL)
 		return -ENOMEM;
-- 
cgit 


From 5d67e4c6f50d2706ef9cca522a093b30c8cba66a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 18 Sep 2013 07:45:27 -0700
Subject: Input: cobalt_btns - remove redundant dev_set_drvdata

Driver core sets the data to NULL upon release or probe
failure. Hence explicit setting is not necessary.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Yoichi Yuasa <yuasa@linux-mips.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/misc/cobalt_btns.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/input/misc/cobalt_btns.c b/drivers/input/misc/cobalt_btns.c
index 4f77f87847e8..b5d71d245854 100644
--- a/drivers/input/misc/cobalt_btns.c
+++ b/drivers/input/misc/cobalt_btns.c
@@ -131,7 +131,6 @@ static int cobalt_buttons_probe(struct platform_device *pdev)
  err_free_mem:
 	input_free_polled_device(poll_dev);
 	kfree(bdev);
-	dev_set_drvdata(&pdev->dev, NULL);
 	return error;
 }
 
@@ -144,7 +143,6 @@ static int cobalt_buttons_remove(struct platform_device *pdev)
 	input_free_polled_device(bdev->poll_dev);
 	iounmap(bdev->reg);
 	kfree(bdev);
-	dev_set_drvdata(dev, NULL);
 
 	return 0;
 }
-- 
cgit 


From 4906a31b4c60b2499e63737f3194c596d4f86482 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 18 Sep 2013 07:47:53 -0700
Subject: Input: htcpen - remove redundant dev_set_drvdata

Driver core sets the data to NULL upon release or probe
failure. Hence explicit setting is not necessary.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/htcpen.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/input/touchscreen/htcpen.c b/drivers/input/touchscreen/htcpen.c
index 66500852341b..92e2243fb77d 100644
--- a/drivers/input/touchscreen/htcpen.c
+++ b/drivers/input/touchscreen/htcpen.c
@@ -186,8 +186,6 @@ static int htcpen_isa_remove(struct device *dev, unsigned int id)
 	release_region(HTCPEN_PORT_INIT, 1);
 	release_region(HTCPEN_PORT_IRQ_CLEAR, 1);
 
-	dev_set_drvdata(dev, NULL);
-
 	return 0;
 }
 
-- 
cgit 


From 390de835b61228abf6646f2b14530edca8d7512f Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 18 Sep 2013 07:48:18 -0700
Subject: Input: rb532_button - remove redundant dev_set_drvdata

Driver core sets the data to NULL upon release or probe
failure. Hence explicit setting is not necessary.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/misc/rb532_button.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/input/misc/rb532_button.c b/drivers/input/misc/rb532_button.c
index fb4f8ac3343b..83fff38b86b3 100644
--- a/drivers/input/misc/rb532_button.c
+++ b/drivers/input/misc/rb532_button.c
@@ -87,7 +87,6 @@ static int rb532_button_remove(struct platform_device *pdev)
 
 	input_unregister_polled_device(poll_dev);
 	input_free_polled_device(poll_dev);
-	dev_set_drvdata(&pdev->dev, NULL);
 
 	return 0;
 }
-- 
cgit 


From 8474caddccedcbf6da59f3ed3bc5c4d9442f8e5d Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 18 Sep 2013 07:45:57 -0700
Subject: Input: cyttsp4_core - remove redundant dev_set_drvdata

Driver core sets the data to NULL upon release or probe
failure. Hence explicit setting is not necessary.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/cyttsp4_core.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/input/touchscreen/cyttsp4_core.c b/drivers/input/touchscreen/cyttsp4_core.c
index d038575f49db..42d830efa316 100644
--- a/drivers/input/touchscreen/cyttsp4_core.c
+++ b/drivers/input/touchscreen/cyttsp4_core.c
@@ -2113,7 +2113,6 @@ error_startup:
 error_request_irq:
 	if (cd->cpdata->init)
 		cd->cpdata->init(cd->cpdata, 0, dev);
-	dev_set_drvdata(dev, NULL);
 error_free_xfer:
 	kfree(cd->xfer_buf);
 error_free_cd:
@@ -2151,7 +2150,6 @@ int cyttsp4_remove(struct cyttsp4 *cd)
 	free_irq(cd->irq, cd);
 	if (cd->cpdata->init)
 		cd->cpdata->init(cd->cpdata, 0, dev);
-	dev_set_drvdata(dev, NULL);
 	cyttsp4_free_si_ptrs(cd);
 	kfree(cd);
 	return 0;
-- 
cgit 


From 00c877c69ba315d6c565a4df51c71b11e82cdeb8 Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Wed, 18 Sep 2013 18:18:02 +0530
Subject: regulator: core: add support for configuring turn-on time through
 constraints

The turn-on time of the regulator depends on the regulator device's
electrical characteristics. Sometimes regulator turn-on time also
depends on the capacitive load on the given platform and it can be
more than the datasheet value.

The driver provides the enable-time as per datasheet.

Add support for configure the enable ramp time through regulator
constraints so that regulator core can take this value for enable
time for that regulator.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 Documentation/devicetree/bindings/regulator/regulator.txt | 5 +++++
 drivers/regulator/core.c                                  | 2 ++
 drivers/regulator/of_regulator.c                          | 6 ++++++
 include/linux/regulator/machine.h                         | 2 ++
 4 files changed, 15 insertions(+)

diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt
index 2bd8f0978765..e2c7f1e7251a 100644
--- a/Documentation/devicetree/bindings/regulator/regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/regulator.txt
@@ -14,6 +14,11 @@ Optional properties:
 - regulator-ramp-delay: ramp delay for regulator(in uV/uS)
   For hardwares which support disabling ramp rate, it should be explicitly
   intialised to zero (regulator-ramp-delay = <0>) for disabling ramp delay.
+- regulator-enable-ramp-delay: The time taken, in microseconds, for the supply
+  rail to reach the target voltage, plus/minus whatever tolerance the board
+  design requires. This property describes the total system ramp time
+  required due to the combination of internal ramping of the regulator itself,
+  and board design issues such as trace capacitance and load on the supply.
 
 Deprecated properties:
 - regulator-compatible: If a regulator chip contains multiple
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index a01b8b3b70ca..5217c1964c32 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1186,6 +1186,8 @@ overflow_err:
 
 static int _regulator_get_enable_time(struct regulator_dev *rdev)
 {
+	if (rdev->constraints && rdev->constraints->enable_time)
+		return rdev->constraints->enable_time;
 	if (!rdev->desc->ops->enable_time)
 		return rdev->desc->enable_time;
 	return rdev->desc->ops->enable_time(rdev);
diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c
index 7827384680d6..ea4f36f2cbe2 100644
--- a/drivers/regulator/of_regulator.c
+++ b/drivers/regulator/of_regulator.c
@@ -23,6 +23,8 @@ static void of_get_regulation_constraints(struct device_node *np,
 	const __be32 *min_uA, *max_uA, *ramp_delay;
 	struct property *prop;
 	struct regulation_constraints *constraints = &(*init_data)->constraints;
+	int ret;
+	u32 pval;
 
 	constraints->name = of_get_property(np, "regulator-name", NULL);
 
@@ -73,6 +75,10 @@ static void of_get_regulation_constraints(struct device_node *np,
 		else
 			constraints->ramp_disable = true;
 	}
+
+	ret = of_property_read_u32(np, "regulator-enable-ramp-delay", &pval);
+	if (!ret)
+		constraints->enable_time = pval;
 }
 
 /**
diff --git a/include/linux/regulator/machine.h b/include/linux/regulator/machine.h
index 999b20ce06cf..8108751acb86 100644
--- a/include/linux/regulator/machine.h
+++ b/include/linux/regulator/machine.h
@@ -95,6 +95,7 @@ struct regulator_state {
  * @initial_state: Suspend state to set by default.
  * @initial_mode: Mode to set at startup.
  * @ramp_delay: Time to settle down after voltage change (unit: uV/us)
+ * @enable_time: Turn-on time of the rails (unit: microseconds)
  */
 struct regulation_constraints {
 
@@ -129,6 +130,7 @@ struct regulation_constraints {
 	unsigned int initial_mode;
 
 	unsigned int ramp_delay;
+	unsigned int enable_time;
 
 	/* constraint flags */
 	unsigned always_on:1;	/* regulator never off when system is on */
-- 
cgit 


From 1a81b94d4fc8470848eb80e39a6001c48cc3fc29 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Tue, 17 Sep 2013 05:21:29 +0200
Subject: c6x: remove unused parameter in Kconfig

This patch proposes to remove the TMS320C6X_CACHES_ON kernel configuration
parameter defined in arch/c6x/Kconfig, but used nowhere
in the makefiles and source code.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked by: Mark Salter <msalter@redhat.com>
---
 arch/c6x/Kconfig | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index 957dd00ea561..b4f77258cacc 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -105,10 +105,6 @@ menu "Processor type and features"
 
 source "arch/c6x/platforms/Kconfig"
 
-config TMS320C6X_CACHES_ON
-	bool "L2 cache support"
-	default y
-
 config KERNEL_RAM_BASE_ADDRESS
 	hex "Virtual address of memory base"
 	default 0xe0000000 if SOC_TMS320C6455
-- 
cgit 


From 428abbb8b89173e5ca2750cd407d1125b231caf2 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Sat, 31 Aug 2013 23:07:24 +0200
Subject: ARM: sun7i: Enable the I2C controllers

The Allwinner A20 shares the same I2C controller than the one that could
be found on earlier SoCs from Allwinner. There is only a few more of
these controllers. Add all of them in the DTSI.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 arch/arm/boot/dts/sun7i-a20.dtsi | 45 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 282c775ee11e..a6829efb8ccf 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -329,6 +329,51 @@
 			status = "disabled";
 		};
 
+		i2c0: i2c@01c2ac00 {
+			compatible = "allwinner,sun4i-i2c";
+			reg = <0x01c2ac00 0x400>;
+			interrupts = <0 7 1>;
+			clocks = <&apb1_gates 0>;
+			clock-frequency = <100000>;
+			status = "disabled";
+		};
+
+		i2c1: i2c@01c2b000 {
+			compatible = "allwinner,sun4i-i2c";
+			reg = <0x01c2b000 0x400>;
+			interrupts = <0 8 1>;
+			clocks = <&apb1_gates 1>;
+			clock-frequency = <100000>;
+			status = "disabled";
+		};
+
+		i2c2: i2c@01c2b400 {
+			compatible = "allwinner,sun4i-i2c";
+			reg = <0x01c2b400 0x400>;
+			interrupts = <0 9 1>;
+			clocks = <&apb1_gates 2>;
+			clock-frequency = <100000>;
+			status = "disabled";
+		};
+
+		i2c3: i2c@01c2b800 {
+			compatible = "allwinner,sun4i-i2c";
+			reg = <0x01c2b800 0x400>;
+			interrupts = <0 88 1>;
+			clocks = <&apb1_gates 3>;
+			clock-frequency = <100000>;
+			status = "disabled";
+		};
+
+		i2c4: i2c@01c2bc00 {
+			compatible = "allwinner,sun4i-i2c";
+			reg = <0x01c2bc00 0x400>;
+			interrupts = <0 89 1>;
+			clocks = <&apb1_gates 15>;
+			clock-frequency = <100000>;
+			status = "disabled";
+		};
+
 		gic: interrupt-controller@01c81000 {
 			compatible = "arm,cortex-a7-gic", "arm,cortex-a15-gic";
 			reg = <0x01c81000 0x1000>,
-- 
cgit 


From e5496a31d99c01b156522ce9877632db7c82257b Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Sat, 31 Aug 2013 23:08:49 +0200
Subject: ARM: sun7i: Add the pin muxing options for the I2C controllers

The A20 boards we currently have share the same pins for the i2c
controllers they share. Add them to the DTSI.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 arch/arm/boot/dts/sun7i-a20.dtsi | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index a6829efb8ccf..e46cfedde74c 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -215,6 +215,27 @@
 				allwinner,pull = <0>;
 			};
 
+			i2c0_pins_a: i2c0@0 {
+				allwinner,pins = "PB0", "PB1";
+				allwinner,function = "i2c0";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+
+			i2c1_pins_a: i2c1@0 {
+				allwinner,pins = "PB18", "PB19";
+				allwinner,function = "i2c1";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+
+			i2c2_pins_a: i2c2@0 {
+				allwinner,pins = "PB20", "PB21";
+				allwinner,function = "i2c2";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+
 			emac_pins_a: emac0@0 {
 				allwinner,pins = "PA0", "PA1", "PA2",
 						"PA3", "PA4", "PA5", "PA6",
-- 
cgit 


From ce0106c5bbf689949c752b2a389ee82721c0e5d6 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Sat, 31 Aug 2013 23:12:58 +0200
Subject: ARM: sun7i: cubieboard2: Enable the I2C controllers

The Cubieboard2 uses both the i2c0 and i2c1 controllers. Enable them in
the DT.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 arch/arm/boot/dts/sun7i-a20-cubieboard2.dts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
index 15e625eca312..5c51cb8a98b0 100644
--- a/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubieboard2.dts
@@ -48,6 +48,18 @@
 			pinctrl-0 = <&uart0_pins_a>;
 			status = "okay";
 		};
+
+		i2c0: i2c@01c2ac00 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&i2c0_pins_a>;
+			status = "okay";
+		};
+
+		i2c1: i2c@01c2b000 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&i2c1_pins_a>;
+			status = "okay";
+		};
 	};
 
 	leds {
-- 
cgit 


From d6d3f9e65406e0e3f90843b13afc823905e33a81 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Sat, 31 Aug 2013 23:14:19 +0200
Subject: ARM: sun7i: olinuxino-micro: Enable the I2C controllers

The A20-olinuxino-micro uses the first three I2C controllers found on
the A20. Enable them in the DT.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
index 9e778557fadb..ead3013f9aca 100644
--- a/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun7i-a20-olinuxino-micro.dts
@@ -60,6 +60,24 @@
 			pinctrl-0 = <&uart7_pins_a>;
 			status = "okay";
 		};
+
+		i2c0: i2c@01c2ac00 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&i2c0_pins_a>;
+			status = "okay";
+		};
+
+		i2c1: i2c@01c2b000 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&i2c1_pins_a>;
+			status = "okay";
+		};
+
+		i2c2: i2c@01c2b400 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&i2c2_pins_a>;
+			status = "okay";
+		};
 	};
 
 	leds {
-- 
cgit 


From 0af784dcbc44e3cf21a1bda3ce14df5fcc2bfe93 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 16 Sep 2013 13:05:12 +0300
Subject: Bluetooth: Remove unused event mask struct

The struct for HCI_Set_Event_Mask is never used. Instead a local 8-byte
array is used for sending this command. Therefore, remove the
unnecessary struct definition.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/hci.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 30c88b585c1b..52bd2488ff4a 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -694,9 +694,6 @@ struct hci_cp_sniff_subrate {
 } __packed;
 
 #define HCI_OP_SET_EVENT_MASK		0x0c01
-struct hci_cp_set_event_mask {
-	__u8     mask[8];
-} __packed;
 
 #define HCI_OP_RESET			0x0c03
 
-- 
cgit 


From 7a362838f9ed1d6806a2b28f68699826423a7e03 Mon Sep 17 00:00:00 2001
From: Paul Moore <pmoore@redhat.com>
Date: Wed, 18 Sep 2013 13:57:55 -0400
Subject: selinux: add Paul Moore as a SELinux maintainer

Signed-off-by: Paul Moore <paul@paul-moore.com>
Acked-by: Eric Paris <eparis@redhat.com>
---
 MAINTAINERS | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index b140c8123098..3df53f174725 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7310,9 +7310,10 @@ SELINUX SECURITY MODULE
 M:	Stephen Smalley <sds@tycho.nsa.gov>
 M:	James Morris <james.l.morris@oracle.com>
 M:	Eric Paris <eparis@parisplace.org>
+M:	Paul Moore <paul@paul-moore.com>
 L:	selinux@tycho.nsa.gov (subscribers-only, general discussion)
 W:	http://selinuxproject.org
-T:	git git://git.infradead.org/users/eparis/selinux.git
+T:	git git://git.infradead.org/users/pcmoore/selinux
 S:	Supported
 F:	include/linux/selinux*
 F:	security/selinux/
-- 
cgit 


From 9572588c912751ca9b2518252e0f203791fdc9ef Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Tue, 17 Sep 2013 23:42:00 +0100
Subject: iio: Minor cleanups of industrialio-buffer

adding one return value check
fix one kerneldoc

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/industrialio-buffer.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index a7ac4b5af03e..58180ec36fe8 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -243,6 +243,8 @@ static int iio_buffer_add_channel_sysfs(struct iio_dev *indio_dev,
 					     0,
 					     &indio_dev->dev,
 					     &buffer->scan_el_dev_attr_list);
+	if (ret)
+		goto error_ret;
 	attrcount++;
 	ret = attrcount;
 error_ret:
@@ -412,7 +414,7 @@ ssize_t iio_buffer_show_enable(struct device *dev,
 }
 EXPORT_SYMBOL(iio_buffer_show_enable);
 
-/* note NULL used as error indicator as it doesn't make sense. */
+/* Note NULL used as error indicator as it doesn't make sense. */
 static const unsigned long *iio_scan_mask_match(const unsigned long *av_masks,
 					  unsigned int masklength,
 					  const unsigned long *mask)
@@ -494,7 +496,7 @@ int iio_update_buffers(struct iio_dev *indio_dev,
 		return 0;
 	}
 
-	/* What scan mask do we actually have ?*/
+	/* What scan mask do we actually have? */
 	compound_mask = kcalloc(BITS_TO_LONGS(indio_dev->masklength),
 				sizeof(long), GFP_KERNEL);
 	if (compound_mask == NULL) {
@@ -560,7 +562,7 @@ int iio_update_buffers(struct iio_dev *indio_dev,
 			goto error_run_postdisable;
 		}
 	}
-	/* Definitely possible for devices to support both of these.*/
+	/* Definitely possible for devices to support both of these. */
 	if (indio_dev->modes & INDIO_BUFFER_TRIGGERED) {
 		if (!indio_dev->trig) {
 			printk(KERN_INFO "Buffer not started: no trigger\n");
@@ -571,7 +573,7 @@ int iio_update_buffers(struct iio_dev *indio_dev,
 		indio_dev->currentmode = INDIO_BUFFER_TRIGGERED;
 	} else if (indio_dev->modes & INDIO_BUFFER_HARDWARE) {
 		indio_dev->currentmode = INDIO_BUFFER_HARDWARE;
-	} else { /* should never be reached */
+	} else { /* Should never be reached */
 		ret = -EINVAL;
 		goto error_run_postdisable;
 	}
@@ -694,6 +696,7 @@ static bool iio_validate_scan_mask(struct iio_dev *indio_dev,
 
 /**
  * iio_scan_mask_set() - set particular bit in the scan mask
+ * @indio_dev: the iio device
  * @buffer: the buffer whose scan mask we are interested in
  * @bit: the bit to be set.
  *
@@ -714,7 +717,7 @@ int iio_scan_mask_set(struct iio_dev *indio_dev,
 	if (trialmask == NULL)
 		return -ENOMEM;
 	if (!indio_dev->masklength) {
-		WARN_ON("trying to set scanmask prior to registering buffer\n");
+		WARN_ON("Trying to set scanmask prior to registering buffer\n");
 		goto err_invalid_mask;
 	}
 	bitmap_copy(trialmask, buffer->scan_mask, indio_dev->masklength);
-- 
cgit 


From 07783397c6e3757de805bda5e1139a9e47aa7d74 Mon Sep 17 00:00:00 2001
From: John Stultz <john.stultz@linaro.org>
Date: Tue, 17 Sep 2013 11:20:21 -0700
Subject: rtc: rtc-pl031: Set wakeup flag prior to registering rtcdev

In some recent testing, I noticed the CLOCK_REALTIME_ALARM clockid
wasn't functioning on my vexpress qemu environment. Looking into it
I noticed the pl031 rtc driver doesn't set the wakeup flag on the
device until after registering the device with the RTC subsystem.

This causes the alarmtimer subsystem to not see the pl031 driver
as a valid backing device, and that resuls in alarm clockids
getting ENOTSUPP errors.

Thus be sure to set the wakeup flag on the device prior to
registering the rtcdev so the pl031 rtc driver can be used as
the backing alarmtimer device.

Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: "Jon Medhurst (Tixy)" <tixy@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 drivers/rtc/rtc-pl031.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c
index 0f0609b1aa2c..e3b25712b659 100644
--- a/drivers/rtc/rtc-pl031.c
+++ b/drivers/rtc/rtc-pl031.c
@@ -371,6 +371,7 @@ static int pl031_probe(struct amba_device *adev, const struct amba_id *id)
 		}
 	}
 
+	device_init_wakeup(&adev->dev, 1);
 	ldata->rtc = rtc_device_register("pl031", &adev->dev, ops,
 					THIS_MODULE);
 	if (IS_ERR(ldata->rtc)) {
@@ -384,8 +385,6 @@ static int pl031_probe(struct amba_device *adev, const struct amba_id *id)
 		goto out_no_irq;
 	}
 
-	device_init_wakeup(&adev->dev, 1);
-
 	return 0;
 
 out_no_irq:
-- 
cgit 


From dc280801da1006cd9c702cfaae7ae677fdbc5b53 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 16 Sep 2013 13:05:13 +0300
Subject: Bluetooth: Fix double error response for l2cap_create_chan_req

When an L2CAP request handler returns non-zero the calling code will
send a command reject response. The l2cap_create_chan_req function will
in some cases send its own response but then still return a -EFAULT
error which would cause two responses to be sent. This patch fixes this
by making the function return 0 after sending its own response.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/l2cap_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index b3bb7bca8e60..0b8a2704928e 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -4462,7 +4462,7 @@ error:
 	l2cap_send_cmd(conn, cmd->ident, L2CAP_CREATE_CHAN_RSP,
 		       sizeof(rsp), &rsp);
 
-	return -EFAULT;
+	return 0;
 }
 
 static void l2cap_send_move_chan_req(struct l2cap_chan *chan, u8 dest_amp_id)
-- 
cgit 


From 21870b523e847432312a1b62239ad139369e9f9f Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 16 Sep 2013 13:05:14 +0300
Subject: Bluetooth: Fix L2CAP error return used for failed channel lookups

The EFAULT error should only be used for memory address related errors
and ENOENT might be needed for other purposes than invalid CID errors.
This patch fixes the l2cap_config_req, l2cap_connect_create_rsp and
l2cap_create_channel_req handlers to use the unique EBADSLT error to
indicate failed lookups on a given CID.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/l2cap_core.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 0b8a2704928e..eb60cf78af77 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -3884,13 +3884,13 @@ static int l2cap_connect_create_rsp(struct l2cap_conn *conn,
 	if (scid) {
 		chan = __l2cap_get_chan_by_scid(conn, scid);
 		if (!chan) {
-			err = -EFAULT;
+			err = -EBADSLT;
 			goto unlock;
 		}
 	} else {
 		chan = __l2cap_get_chan_by_ident(conn, cmd->ident);
 		if (!chan) {
-			err = -EFAULT;
+			err = -EBADSLT;
 			goto unlock;
 		}
 	}
@@ -3978,7 +3978,7 @@ static inline int l2cap_config_req(struct l2cap_conn *conn,
 
 	chan = l2cap_get_chan_by_scid(conn, dcid);
 	if (!chan)
-		return -ENOENT;
+		return -EBADSLT;
 
 	if (chan->state != BT_CONFIG && chan->state != BT_CONNECT2) {
 		struct l2cap_cmd_rej_cid rej;
@@ -4438,7 +4438,7 @@ static int l2cap_create_channel_req(struct l2cap_conn *conn,
 		hs_hcon = hci_conn_hash_lookup_ba(hdev, AMP_LINK, conn->dst);
 		if (!hs_hcon) {
 			hci_dev_put(hdev);
-			return -EFAULT;
+			return -EBADSLT;
 		}
 
 		BT_DBG("mgr %p bredr_chan %p hs_hcon %p", mgr, chan, hs_hcon);
-- 
cgit 


From c4ea249f5f164957ec8402ba9f3b827d740b299c Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 16 Sep 2013 13:05:15 +0300
Subject: Bluetooth: Fix L2CAP Disconnect response for unknown CID

If we receive an L2CAP Disconnect Request for an unknown CID we should
not just silently drop it but reply with a proper Command Reject
response. This patch fixes this by ensuring that the disconnect handler
returns a proper error instead of 0 and will cause the function caller
to send the right response.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/l2cap_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index eb60cf78af77..31bf81275990 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -4206,7 +4206,7 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn,
 	chan = __l2cap_get_chan_by_scid(conn, dcid);
 	if (!chan) {
 		mutex_unlock(&conn->chan_lock);
-		return 0;
+		return -EBADSLT;
 	}
 
 	l2cap_chan_lock(chan);
-- 
cgit 


From 7c2005d6f9128aec77833019f5c134e4c63af9c5 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 16 Sep 2013 13:05:16 +0300
Subject: Bluetooth: Fix L2CAP command reject reason

There are several possible reason codes that can be sent in the command
reject L2CAP packet. Before this patch the code has used a hard-coded
single response code ("command not understood"). This patch adds a
helper function to map the return value of an L2CAP handler function to
the correct command reject reason.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/l2cap_core.c | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 31bf81275990..2ff35a25374a 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -5294,6 +5294,20 @@ static inline int l2cap_le_sig_cmd(struct l2cap_conn *conn,
 	}
 }
 
+static __le16 l2cap_err_to_reason(int err)
+{
+	switch (err) {
+	case -EBADSLT:
+		return __constant_cpu_to_le16(L2CAP_REJ_INVALID_CID);
+	case -EMSGSIZE:
+		return __constant_cpu_to_le16(L2CAP_REJ_MTU_EXCEEDED);
+	case -EINVAL:
+	case -EPROTO:
+	default:
+		return __constant_cpu_to_le16(L2CAP_REJ_NOT_UNDERSTOOD);
+	}
+}
+
 static inline void l2cap_le_sig_channel(struct l2cap_conn *conn,
 					struct sk_buff *skb)
 {
@@ -5326,8 +5340,7 @@ static inline void l2cap_le_sig_channel(struct l2cap_conn *conn,
 
 			BT_ERR("Wrong link type (%d)", err);
 
-			/* FIXME: Map err to a valid reason */
-			rej.reason = __constant_cpu_to_le16(L2CAP_REJ_NOT_UNDERSTOOD);
+			rej.reason = l2cap_err_to_reason(err);
 			l2cap_send_cmd(conn, cmd.ident, L2CAP_COMMAND_REJ,
 				       sizeof(rej), &rej);
 		}
@@ -5371,8 +5384,7 @@ static inline void l2cap_sig_channel(struct l2cap_conn *conn,
 
 			BT_ERR("Wrong link type (%d)", err);
 
-			/* FIXME: Map err to a valid reason */
-			rej.reason = __constant_cpu_to_le16(L2CAP_REJ_NOT_UNDERSTOOD);
+			rej.reason = l2cap_err_to_reason(err);
 			l2cap_send_cmd(conn, cmd.ident, L2CAP_COMMAND_REJ,
 				       sizeof(rej), &rej);
 		}
-- 
cgit 


From 9245e7375816c4d94d6327c8761b3c7431a5bc2f Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 16 Sep 2013 13:05:17 +0300
Subject: Bluetooth: Fix sending responses to identified L2CAP response packets

When L2CAP packets return a non-zero error and the value is passed
onwards by l2cap_bredr_sig_cmd this will trigger a command reject packet
to be sent. However, the core specification (page 1416 in core 4.0) says
the following: "Command Reject packets should not be sent in response to
an identified Response packet.".

This patch ensures that a command reject packet is not sent for any
identified response packet by ignoring the error return value from the
response handler functions.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/l2cap_core.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 2ff35a25374a..b0947ae336df 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -5212,7 +5212,7 @@ static inline int l2cap_bredr_sig_cmd(struct l2cap_conn *conn,
 
 	case L2CAP_CONN_RSP:
 	case L2CAP_CREATE_CHAN_RSP:
-		err = l2cap_connect_create_rsp(conn, cmd, cmd_len, data);
+		l2cap_connect_create_rsp(conn, cmd, cmd_len, data);
 		break;
 
 	case L2CAP_CONF_REQ:
@@ -5220,7 +5220,7 @@ static inline int l2cap_bredr_sig_cmd(struct l2cap_conn *conn,
 		break;
 
 	case L2CAP_CONF_RSP:
-		err = l2cap_config_rsp(conn, cmd, cmd_len, data);
+		l2cap_config_rsp(conn, cmd, cmd_len, data);
 		break;
 
 	case L2CAP_DISCONN_REQ:
@@ -5228,7 +5228,7 @@ static inline int l2cap_bredr_sig_cmd(struct l2cap_conn *conn,
 		break;
 
 	case L2CAP_DISCONN_RSP:
-		err = l2cap_disconnect_rsp(conn, cmd, cmd_len, data);
+		l2cap_disconnect_rsp(conn, cmd, cmd_len, data);
 		break;
 
 	case L2CAP_ECHO_REQ:
@@ -5243,7 +5243,7 @@ static inline int l2cap_bredr_sig_cmd(struct l2cap_conn *conn,
 		break;
 
 	case L2CAP_INFO_RSP:
-		err = l2cap_information_rsp(conn, cmd, cmd_len, data);
+		l2cap_information_rsp(conn, cmd, cmd_len, data);
 		break;
 
 	case L2CAP_CREATE_CHAN_REQ:
@@ -5255,7 +5255,7 @@ static inline int l2cap_bredr_sig_cmd(struct l2cap_conn *conn,
 		break;
 
 	case L2CAP_MOVE_CHAN_RSP:
-		err = l2cap_move_channel_rsp(conn, cmd, cmd_len, data);
+		l2cap_move_channel_rsp(conn, cmd, cmd_len, data);
 		break;
 
 	case L2CAP_MOVE_CHAN_CFM:
@@ -5263,7 +5263,7 @@ static inline int l2cap_bredr_sig_cmd(struct l2cap_conn *conn,
 		break;
 
 	case L2CAP_MOVE_CHAN_CFM_RSP:
-		err = l2cap_move_channel_confirm_rsp(conn, cmd, cmd_len, data);
+		l2cap_move_channel_confirm_rsp(conn, cmd, cmd_len, data);
 		break;
 
 	default:
-- 
cgit 


From 69c4e4e8b4ca8440e5cbb66219a179e73f7b9e9a Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 16 Sep 2013 13:05:18 +0300
Subject: Bluetooth: Fix responding to invalid L2CAP signaling commands

When we have an LE link we should not respond to any data on the BR/EDR
L2CAP signaling channel (0x0001) and vice-versa when we have a BR/EDR
link we should not respond to LE L2CAP (CID 0x0005) signaling commands.
This patch fixes this issue by checking for a valid link type and
ignores data if it is wrong.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/l2cap_core.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index b0947ae336df..636a3b4873db 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -5311,6 +5311,7 @@ static __le16 l2cap_err_to_reason(int err)
 static inline void l2cap_le_sig_channel(struct l2cap_conn *conn,
 					struct sk_buff *skb)
 {
+	struct hci_conn *hcon = conn->hcon;
 	u8 *data = skb->data;
 	int len = skb->len;
 	struct l2cap_cmd_hdr cmd;
@@ -5318,6 +5319,9 @@ static inline void l2cap_le_sig_channel(struct l2cap_conn *conn,
 
 	l2cap_raw_recv(conn, skb);
 
+	if (hcon->type != LE_LINK)
+		return;
+
 	while (len >= L2CAP_CMD_HDR_SIZE) {
 		u16 cmd_len;
 		memcpy(&cmd, data, L2CAP_CMD_HDR_SIZE);
@@ -5355,6 +5359,7 @@ static inline void l2cap_le_sig_channel(struct l2cap_conn *conn,
 static inline void l2cap_sig_channel(struct l2cap_conn *conn,
 				     struct sk_buff *skb)
 {
+	struct hci_conn *hcon = conn->hcon;
 	u8 *data = skb->data;
 	int len = skb->len;
 	struct l2cap_cmd_hdr cmd;
@@ -5362,6 +5367,9 @@ static inline void l2cap_sig_channel(struct l2cap_conn *conn,
 
 	l2cap_raw_recv(conn, skb);
 
+	if (hcon->type != ACL_LINK)
+		return;
+
 	while (len >= L2CAP_CMD_HDR_SIZE) {
 		u16 cmd_len;
 		memcpy(&cmd, data, L2CAP_CMD_HDR_SIZE);
-- 
cgit 


From 2bdb3afcecff232b8670648755a222494d00981d Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Tue, 17 Sep 2013 22:33:00 +0100
Subject: iio: Make available scan_masks const in ad7266

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ad7266.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c
index 5bfed2398b70..c304966a4f60 100644
--- a/drivers/iio/adc/ad7266.c
+++ b/drivers/iio/adc/ad7266.c
@@ -293,7 +293,7 @@ static const struct iio_info ad7266_info = {
 	.driver_module = THIS_MODULE,
 };
 
-static unsigned long ad7266_available_scan_masks[] = {
+static const unsigned long ad7266_available_scan_masks[] = {
 	0x003,
 	0x00c,
 	0x030,
@@ -303,14 +303,14 @@ static unsigned long ad7266_available_scan_masks[] = {
 	0x000,
 };
 
-static unsigned long ad7266_available_scan_masks_diff[] = {
+static const unsigned long ad7266_available_scan_masks_diff[] = {
 	0x003,
 	0x00c,
 	0x030,
 	0x000,
 };
 
-static unsigned long ad7266_available_scan_masks_fixed[] = {
+static const unsigned long ad7266_available_scan_masks_fixed[] = {
 	0x003,
 	0x000,
 };
@@ -318,7 +318,7 @@ static unsigned long ad7266_available_scan_masks_fixed[] = {
 struct ad7266_chan_info {
 	const struct iio_chan_spec *channels;
 	unsigned int num_channels;
-	unsigned long *scan_masks;
+	const unsigned long *scan_masks;
 };
 
 #define AD7266_CHAN_INFO_INDEX(_differential, _signed, _fixed) \
-- 
cgit 


From e793dcf082c847bd2b742c781252c20cbec37986 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 16 Sep 2013 13:05:19 +0300
Subject: Bluetooth: Fix waiting for clearing of BT_SK_SUSPEND flag

In the case of blocking sockets we should not proceed with sendmsg() if
the socket has the BT_SK_SUSPEND flag set. So far the code was only
ensuring that POLLOUT doesn't get set for non-blocking sockets using
poll() but there was no code in place to ensure that blocking sockets do
the right thing when writing to them.

This patch adds a new bt_sock_wait_ready helper function to sleep in the
sendmsg call if the BT_SK_SUSPEND flag is set, and wake up as soon as it
is unset. It also updates the L2CAP and RFCOMM sendmsg callbacks to take
advantage of this new helper function.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/bluetooth.h |  1 +
 net/bluetooth/af_bluetooth.c      | 40 +++++++++++++++++++++++++++++++++++++++
 net/bluetooth/l2cap_sock.c        |  6 ++++++
 net/bluetooth/rfcomm/sock.c       |  7 ++++++-
 4 files changed, 53 insertions(+), 1 deletion(-)

diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 10d43d8c7037..afbc711ba37a 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -249,6 +249,7 @@ int  bt_sock_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
 uint bt_sock_poll(struct file *file, struct socket *sock, poll_table *wait);
 int  bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
 int  bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
+int  bt_sock_wait_ready(struct sock *sk, unsigned long flags);
 
 void bt_accept_enqueue(struct sock *parent, struct sock *sk);
 void bt_accept_unlink(struct sock *sk);
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 9096137c889c..c600631cd19e 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -525,6 +525,46 @@ int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo)
 }
 EXPORT_SYMBOL(bt_sock_wait_state);
 
+/* This function expects the sk lock to be held when called */
+int bt_sock_wait_ready(struct sock *sk, unsigned long flags)
+{
+	DECLARE_WAITQUEUE(wait, current);
+	unsigned long timeo;
+	int err = 0;
+
+	BT_DBG("sk %p", sk);
+
+	timeo = sock_sndtimeo(sk, flags & O_NONBLOCK);
+
+	add_wait_queue(sk_sleep(sk), &wait);
+	set_current_state(TASK_INTERRUPTIBLE);
+	while (test_bit(BT_SK_SUSPEND, &bt_sk(sk)->flags)) {
+		if (!timeo) {
+			err = -EAGAIN;
+			break;
+		}
+
+		if (signal_pending(current)) {
+			err = sock_intr_errno(timeo);
+			break;
+		}
+
+		release_sock(sk);
+		timeo = schedule_timeout(timeo);
+		lock_sock(sk);
+		set_current_state(TASK_INTERRUPTIBLE);
+
+		err = sock_error(sk);
+		if (err)
+			break;
+	}
+	__set_current_state(TASK_RUNNING);
+	remove_wait_queue(sk_sleep(sk), &wait);
+
+	return err;
+}
+EXPORT_SYMBOL(bt_sock_wait_ready);
+
 #ifdef CONFIG_PROC_FS
 struct bt_seq_state {
 	struct bt_sock_list *l;
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 0098af80b213..ad95b426b09c 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -777,6 +777,12 @@ static int l2cap_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 	if (sk->sk_state != BT_CONNECTED)
 		return -ENOTCONN;
 
+	lock_sock(sk);
+	err = bt_sock_wait_ready(sk, msg->msg_flags);
+	release_sock(sk);
+	if (err)
+		return err;
+
 	l2cap_chan_lock(chan);
 	err = l2cap_chan_send(chan, msg, len, sk->sk_priority);
 	l2cap_chan_unlock(chan);
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 30b3721dc6d7..072938dc527d 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -544,7 +544,7 @@ static int rfcomm_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 	struct sock *sk = sock->sk;
 	struct rfcomm_dlc *d = rfcomm_pi(sk)->dlc;
 	struct sk_buff *skb;
-	int sent = 0;
+	int sent;
 
 	if (test_bit(RFCOMM_DEFER_SETUP, &d->flags))
 		return -ENOTCONN;
@@ -559,6 +559,10 @@ static int rfcomm_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 
 	lock_sock(sk);
 
+	sent = bt_sock_wait_ready(sk, msg->msg_flags);
+	if (sent)
+		goto done;
+
 	while (len) {
 		size_t size = min_t(size_t, len, d->mtu);
 		int err;
@@ -594,6 +598,7 @@ static int rfcomm_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 		len  -= size;
 	}
 
+done:
 	release_sock(sk);
 
 	return sent;
-- 
cgit 


From 5a7bbe86b0b99b1075b97d812946a84ed5fda9ff Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 14:49:14 +0900
Subject: video: au1100fb: Remove casting the return value which is a void
 pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/au1100fb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/au1100fb.c b/drivers/video/au1100fb.c
index a54ccdc4d661..248abd50ca25 100644
--- a/drivers/video/au1100fb.c
+++ b/drivers/video/au1100fb.c
@@ -588,7 +588,7 @@ int au1100fb_drv_remove(struct platform_device *dev)
 	if (!dev)
 		return -ENODEV;
 
-	fbdev = (struct au1100fb_device *) platform_get_drvdata(dev);
+	fbdev = platform_get_drvdata(dev);
 
 #if !defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_LOGO)
 	au1100fb_fb_blank(VESA_POWERDOWN, &fbdev->info);
-- 
cgit 


From 8d0c03dd2d1e8fd0f7ac3d43e90ed99dd748ed7a Mon Sep 17 00:00:00 2001
From: Jon Mason <jdmason@kudzu.us>
Date: Wed, 11 Sep 2013 14:35:05 -0700
Subject: aty128fb: Use pci_dev pm_cap

Use the already existing pm_cap variable in struct pci_dev for
determining the power management offset.  This saves the driver from
having to keep track of an extra variable.

Signed-off-by: Jon Mason <jdmason@kudzu.us>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/aty/aty128fb.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index a4dfe8cb0a0a..b5edb6f08b84 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -413,7 +413,6 @@ struct aty128fb_par {
 	int blitter_may_be_busy;
 	int fifo_slots;                 /* free slots in FIFO (64 max) */
 
-	int	pm_reg;
 	int crt_on, lcd_on;
 	struct pci_dev *pdev;
 	struct fb_info *next;
@@ -2016,7 +2015,6 @@ static int aty128_init(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	aty128_init_engine(par);
 
-	par->pm_reg = pdev->pm_cap;
 	par->pdev = pdev;
 	par->asleep = 0;
 	par->lock_blank = 0;
@@ -2397,7 +2395,7 @@ static void aty128_set_suspend(struct aty128fb_par *par, int suspend)
 	u32	pmgt;
 	struct pci_dev *pdev = par->pdev;
 
-	if (!par->pm_reg)
+	if (!par->pdev->pm_cap)
 		return;
 		
 	/* Set the chip into the appropriate suspend mode (we use D2,
-- 
cgit 


From 65122f7e80b5a4aaec76c21369c798975c3eedac Mon Sep 17 00:00:00 2001
From: Jon Mason <jdmason@kudzu.us>
Date: Wed, 11 Sep 2013 14:35:06 -0700
Subject: radeonfb: Use pci_dev pm_cap

Use the already existing pm_cap variable in struct pci_dev for
determining the power management offset.  This saves the driver from
having to keep track of an extra variable.  Also, use the pci_power_t
value instead of always using the raw value for PCI_D2.

Signed-off-by: Jon Mason <jdmason@kudzu.us>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/aty/radeon_pm.c | 15 ++++++---------
 drivers/video/aty/radeonfb.h  |  1 -
 2 files changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/video/aty/radeon_pm.c b/drivers/video/aty/radeon_pm.c
index f7091ece580d..f2662247363e 100644
--- a/drivers/video/aty/radeon_pm.c
+++ b/drivers/video/aty/radeon_pm.c
@@ -2515,13 +2515,13 @@ static void radeonfb_whack_power_state(struct radeonfb_info *rinfo, pci_power_t
 
 	for (;;) {
 		pci_read_config_word(rinfo->pdev,
-				     rinfo->pm_reg+PCI_PM_CTRL,
+				     rinfo->pdev->pm_cap + PCI_PM_CTRL,
 				     &pwr_cmd);
-		if (pwr_cmd & 2)
+		if (pwr_cmd & state)
 			break;
-		pwr_cmd = (pwr_cmd & ~PCI_PM_CTRL_STATE_MASK) | 2;
+		pwr_cmd = (pwr_cmd & ~PCI_PM_CTRL_STATE_MASK) | state;
 		pci_write_config_word(rinfo->pdev,
-				      rinfo->pm_reg+PCI_PM_CTRL,
+				      rinfo->pdev->pm_cap + PCI_PM_CTRL,
 				      pwr_cmd);
 		msleep(500);
 	}
@@ -2532,7 +2532,7 @@ static void radeon_set_suspend(struct radeonfb_info *rinfo, int suspend)
 {
 	u32 tmp;
 
-	if (!rinfo->pm_reg)
+	if (!rinfo->pdev->pm_cap)
 		return;
 
 	/* Set the chip into appropriate suspend mode (we use D2,
@@ -2804,9 +2804,6 @@ static void radeonfb_early_resume(void *data)
 
 void radeonfb_pm_init(struct radeonfb_info *rinfo, int dynclk, int ignore_devlist, int force_sleep)
 {
-	/* Find PM registers in config space if any*/
-	rinfo->pm_reg = rinfo->pdev->pm_cap;
-
 	/* Enable/Disable dynamic clocks: TODO add sysfs access */
 	if (rinfo->family == CHIP_FAMILY_RS480)
 		rinfo->dynclk = -1;
@@ -2830,7 +2827,7 @@ void radeonfb_pm_init(struct radeonfb_info *rinfo, int dynclk, int ignore_devlis
 	 * reason. --BenH
 	 */
 	if (machine_is(powermac) && rinfo->of_node) {
-		if (rinfo->is_mobility && rinfo->pm_reg &&
+		if (rinfo->is_mobility && rinfo->pdev->pm_cap &&
 		    rinfo->family <= CHIP_FAMILY_RV250)
 			rinfo->pm_mode |= radeon_pm_d2;
 
diff --git a/drivers/video/aty/radeonfb.h b/drivers/video/aty/radeonfb.h
index 7351e66c7f54..cb846044f57c 100644
--- a/drivers/video/aty/radeonfb.h
+++ b/drivers/video/aty/radeonfb.h
@@ -342,7 +342,6 @@ struct radeonfb_info {
 
 	int			mtrr_hdl;
 
-	int			pm_reg;
 	u32			save_regs[100];
 	int			asleep;
 	int			lock_blank;
-- 
cgit 


From 8e6947764f4b69d612519e9202f6e9ae982b6cd4 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:50:40 +0900
Subject: video: arkfb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/arkfb.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/arkfb.c b/drivers/video/arkfb.c
index 94a51f1ef904..ff6e304b225f 100644
--- a/drivers/video/arkfb.c
+++ b/drivers/video/arkfb.c
@@ -1108,7 +1108,6 @@ static void ark_pci_remove(struct pci_dev *dev)
 		pci_release_regions(dev);
 /*		pci_disable_device(dev); */
 
-		pci_set_drvdata(dev, NULL);
 		framebuffer_release(info);
 	}
 }
-- 
cgit 


From 4a70324640e100f375e55e9b502d18c610a8432d Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:51:25 +0900
Subject: video: carminefb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/carminefb.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/carminefb.c b/drivers/video/carminefb.c
index 153dd65b0ae8..b98f709abf52 100644
--- a/drivers/video/carminefb.c
+++ b/drivers/video/carminefb.c
@@ -746,7 +746,6 @@ static void carminefb_remove(struct pci_dev *dev)
 	iounmap(hw->v_regs);
 	release_mem_region(fix.mmio_start, fix.mmio_len);
 
-	pci_set_drvdata(dev, NULL);
 	pci_disable_device(dev);
 	kfree(hw);
 }
-- 
cgit 


From d5ddbb00b85486c458854b61f6002a6c8edee0c3 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:51:57 +0900
Subject: video: cirrusfb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/cirrusfb.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c
index 97db3ba8f237..b0167468f5c4 100644
--- a/drivers/video/cirrusfb.c
+++ b/drivers/video/cirrusfb.c
@@ -2159,7 +2159,6 @@ static int cirrusfb_pci_register(struct pci_dev *pdev,
 	if (!ret)
 		return 0;
 
-	pci_set_drvdata(pdev, NULL);
 	iounmap(info->screen_base);
 err_release_legacy:
 	if (release_io_ports)
-- 
cgit 


From 1df6af41bd6118681a18445c1b7f94f6893a28b6 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:52:30 +0900
Subject: video: cyber2000fb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/cyber2000fb.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/video/cyber2000fb.c b/drivers/video/cyber2000fb.c
index 57886787ead0..c824b4223b83 100644
--- a/drivers/video/cyber2000fb.c
+++ b/drivers/video/cyber2000fb.c
@@ -1871,11 +1871,6 @@ static void cyberpro_pci_remove(struct pci_dev *dev)
 		iounmap(cfb->region);
 		cyberpro_free_fb_info(cfb);
 
-		/*
-		 * Ensure that the driver data is no longer
-		 * valid.
-		 */
-		pci_set_drvdata(dev, NULL);
 		if (cfb == int_cfb_info)
 			int_cfb_info = NULL;
 
-- 
cgit 


From 72411db379e14411e15d8f75993deb52de13ac56 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:53:11 +0900
Subject: video: lxfb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/geode/lxfb_core.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/geode/lxfb_core.c b/drivers/video/geode/lxfb_core.c
index 4dd7b5566962..10de31b21d0a 100644
--- a/drivers/video/geode/lxfb_core.c
+++ b/drivers/video/geode/lxfb_core.c
@@ -606,7 +606,6 @@ static void lxfb_remove(struct pci_dev *pdev)
 	pci_release_region(pdev, 3);
 
 	fb_dealloc_cmap(&info->cmap);
-	pci_set_drvdata(pdev, NULL);
 	framebuffer_release(info);
 }
 
-- 
cgit 


From 90def2c31247ff195ce52089405a400a0209ca64 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:53:49 +0900
Subject: video: gx1fb: remove unnecessary pci_set_drvdata()

 From fbb1885952efb15a46d03aac050c38fc9179594e Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 14:42:45 +0900
Subject: [PATCH 06/21] video: gx1fb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/geode/gx1fb_core.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/geode/gx1fb_core.c b/drivers/video/geode/gx1fb_core.c
index ebbaada7b941..7551a04f5c31 100644
--- a/drivers/video/geode/gx1fb_core.c
+++ b/drivers/video/geode/gx1fb_core.c
@@ -399,7 +399,6 @@ static void gx1fb_remove(struct pci_dev *pdev)
 	release_mem_region(gx1_gx_base() + 0x8300, 0x100);
 
 	fb_dealloc_cmap(&info->cmap);
-	pci_set_drvdata(pdev, NULL);
 
 	framebuffer_release(info);
 }
-- 
cgit 


From 44f75bfdbea0a2364dda7d733b5a2e4e31de5482 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:54:28 +0900
Subject: video: gxfb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/geode/gxfb_core.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/geode/gxfb_core.c b/drivers/video/geode/gxfb_core.c
index 19f0c1add747..a42d74d6eded 100644
--- a/drivers/video/geode/gxfb_core.c
+++ b/drivers/video/geode/gxfb_core.c
@@ -471,7 +471,6 @@ static void gxfb_remove(struct pci_dev *pdev)
 	pci_release_region(pdev, 1);
 
 	fb_dealloc_cmap(&info->cmap);
-	pci_set_drvdata(pdev, NULL);
 
 	framebuffer_release(info);
 }
-- 
cgit 


From 6a20807905b6cf84026f78f25aee2ccc0e4d0d3e Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:54:53 +0900
Subject: video: i740fb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/i740fb.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/i740fb.c b/drivers/video/i740fb.c
index 6c4838818950..6501ac1dba0f 100644
--- a/drivers/video/i740fb.c
+++ b/drivers/video/i740fb.c
@@ -1194,7 +1194,6 @@ static void i740fb_remove(struct pci_dev *dev)
 		pci_iounmap(dev, info->screen_base);
 		pci_release_regions(dev);
 /*		pci_disable_device(dev); */
-		pci_set_drvdata(dev, NULL);
 		framebuffer_release(info);
 	}
 }
-- 
cgit 


From 17a7a1989aed7294f27b204fd93ee6842a47488f Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:55:29 +0900
Subject: video: i810fb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/i810/i810_main.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/i810/i810_main.c b/drivers/video/i810/i810_main.c
index 4ce3438ade6f..038192ac7369 100644
--- a/drivers/video/i810/i810_main.c
+++ b/drivers/video/i810/i810_main.c
@@ -2129,7 +2129,6 @@ static void __exit i810fb_remove_pci(struct pci_dev *dev)
 
 	unregister_framebuffer(info);  
 	i810fb_release_resource(info, par);
-	pci_set_drvdata(dev, NULL);
 	printk("cleanup_module:  unloaded i810 framebuffer device\n");
 }                                                	
 
-- 
cgit 


From 07af229af68efd6220b301be6561ca19ce26c40e Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:56:00 +0900
Subject: video: intelfb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/intelfb/intelfbdrv.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/intelfb/intelfbdrv.c b/drivers/video/intelfb/intelfbdrv.c
index 8209e46c5d28..b847d530471a 100644
--- a/drivers/video/intelfb/intelfbdrv.c
+++ b/drivers/video/intelfb/intelfbdrv.c
@@ -931,8 +931,6 @@ static void intelfb_pci_unregister(struct pci_dev *pdev)
 		return;
 
 	cleanup(dinfo);
-
-	pci_set_drvdata(pdev, NULL);
 }
 
 /***************************************************************
-- 
cgit 


From 443e3fbcd034218c97f0970ceeb42ca3c982c9a2 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:56:32 +0900
Subject: video: kyrofb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/kyro/fbdev.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/kyro/fbdev.c b/drivers/video/kyro/fbdev.c
index 6157f74ac600..c82f0400d7d2 100644
--- a/drivers/video/kyro/fbdev.c
+++ b/drivers/video/kyro/fbdev.c
@@ -779,7 +779,6 @@ static void kyrofb_remove(struct pci_dev *pdev)
 #endif
 
 	unregister_framebuffer(info);
-	pci_set_drvdata(pdev, NULL);
 	framebuffer_release(info);
 }
 
-- 
cgit 


From 3a1300ef9e3c25b206e0932655ab67996b3743e2 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:57:09 +0900
Subject: video: mb862xxfb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/mb862xx/mb862xxfbdrv.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/mb862xx/mb862xxfbdrv.c b/drivers/video/mb862xx/mb862xxfbdrv.c
index 91c59c9fb082..98d2f8c2ed75 100644
--- a/drivers/video/mb862xx/mb862xxfbdrv.c
+++ b/drivers/video/mb862xx/mb862xxfbdrv.c
@@ -1157,7 +1157,6 @@ static void mb862xx_pci_remove(struct pci_dev *pdev)
 
 	device_remove_file(&pdev->dev, &dev_attr_dispregs);
 
-	pci_set_drvdata(pdev, NULL);
 	unregister_framebuffer(fbi);
 	fb_dealloc_cmap(&fbi->cmap);
 
-- 
cgit 


From 0ab49846c82c31c7729c127b05ac8a3b927cd36a Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:57:54 +0900
Subject: video: neofb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/neofb.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/video/neofb.c b/drivers/video/neofb.c
index 7ef079c146e7..891b0bf841e3 100644
--- a/drivers/video/neofb.c
+++ b/drivers/video/neofb.c
@@ -2146,12 +2146,6 @@ static void neofb_remove(struct pci_dev *dev)
 		fb_destroy_modedb(info->monspecs.modedb);
 		neo_unmap_mmio(info);
 		neo_free_fb_info(info);
-
-		/*
-		 * Ensure that the driver data is no longer
-		 * valid.
-		 */
-		pci_set_drvdata(dev, NULL);
 	}
 }
 
-- 
cgit 


From fe2cc238932a28de11110e78bc807712fdc96158 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:58:11 +0900
Subject: video: pm2fb: remove unnecessary pci_set_drvdata()

 From 9e2c37ee1d5c2145fac113c483c9e6dd408f10fe Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:11:07 +0900
Subject: [PATCH 14/21] video: pm2fb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/pm2fb.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/pm2fb.c b/drivers/video/pm2fb.c
index 81354eeab021..45d9a3fe35e7 100644
--- a/drivers/video/pm2fb.c
+++ b/drivers/video/pm2fb.c
@@ -1744,7 +1744,6 @@ static void pm2fb_remove(struct pci_dev *pdev)
 	iounmap(par->v_regs);
 	release_mem_region(fix->mmio_start, fix->mmio_len);
 
-	pci_set_drvdata(pdev, NULL);
 	fb_dealloc_cmap(&info->cmap);
 	kfree(info->pixmap.addr);
 	framebuffer_release(info);
-- 
cgit 


From 76347609ae082a0d4bad223f0b076c51bb006b16 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:58:44 +0900
Subject: video: pm3fb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/pm3fb.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/pm3fb.c b/drivers/video/pm3fb.c
index 7718faa4a73b..9c17474340cd 100644
--- a/drivers/video/pm3fb.c
+++ b/drivers/video/pm3fb.c
@@ -1489,7 +1489,6 @@ static void pm3fb_remove(struct pci_dev *dev)
 		iounmap(par->v_regs);
 		release_mem_region(fix->mmio_start, fix->mmio_len);
 
-		pci_set_drvdata(dev, NULL);
 		kfree(info->pixmap.addr);
 		framebuffer_release(info);
 	}
-- 
cgit 


From 354b40c4a2f99461f86a5dc8a62e59acd18b08ea Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:59:13 +0900
Subject: video: s3fb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/s3fb.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/s3fb.c b/drivers/video/s3fb.c
index 47ca86c5c6c0..d158d2c0460f 100644
--- a/drivers/video/s3fb.c
+++ b/drivers/video/s3fb.c
@@ -1431,7 +1431,6 @@ static void s3_pci_remove(struct pci_dev *dev)
 		pci_release_regions(dev);
 /*		pci_disable_device(dev); */
 
-		pci_set_drvdata(dev, NULL);
 		framebuffer_release(info);
 	}
 }
-- 
cgit 


From f1260e3ec4c4abaadf2a68cf1378a613fb885bbe Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:59:43 +0900
Subject: video: savagefb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/savage/savagefb_driver.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/video/savage/savagefb_driver.c b/drivers/video/savage/savagefb_driver.c
index 741b2395d01e..4dbf45f3b21a 100644
--- a/drivers/video/savage/savagefb_driver.c
+++ b/drivers/video/savage/savagefb_driver.c
@@ -2362,12 +2362,6 @@ static void savagefb_remove(struct pci_dev *dev)
 		kfree(info->pixmap.addr);
 		pci_release_regions(dev);
 		framebuffer_release(info);
-
-		/*
-		 * Ensure that the driver data is no longer
-		 * valid.
-		 */
-		pci_set_drvdata(dev, NULL);
 	}
 }
 
-- 
cgit 


From f9af73c6f688630fbf84aa2361772613b36021ee Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 16:00:31 +0900
Subject: video: sisfb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/sis/sis_main.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c
index 977e27927a21..793b40238fca 100644
--- a/drivers/video/sis/sis_main.c
+++ b/drivers/video/sis/sis_main.c
@@ -5994,7 +5994,6 @@ static int sisfb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if(!ivideo->sisvga_enabled) {
 		if(pci_enable_device(pdev)) {
 			if(ivideo->nbridge) pci_dev_put(ivideo->nbridge);
-			pci_set_drvdata(pdev, NULL);
 			framebuffer_release(sis_fb_info);
 			return -EIO;
 		}
@@ -6211,7 +6210,6 @@ error_3:	vfree(ivideo->bios_abase);
 			pci_dev_put(ivideo->lpcdev);
 		if(ivideo->nbridge)
 			pci_dev_put(ivideo->nbridge);
-		pci_set_drvdata(pdev, NULL);
 		if(!ivideo->sisvga_enabled)
 			pci_disable_device(pdev);
 		framebuffer_release(sis_fb_info);
@@ -6523,8 +6521,6 @@ static void sisfb_remove(struct pci_dev *pdev)
 		mtrr_del(ivideo->mtrr, ivideo->video_base, ivideo->video_size);
 #endif
 
-	pci_set_drvdata(pdev, NULL);
-
 	/* If device was disabled when starting, disable
 	 * it when quitting.
 	 */
-- 
cgit 


From e09335a6fe88efb5db5c7e13ea58a5793f023c26 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 16:00:58 +0900
Subject: video: tdfxfb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/tdfxfb.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/tdfxfb.c b/drivers/video/tdfxfb.c
index 64bc28ba4037..f761fe375f5b 100644
--- a/drivers/video/tdfxfb.c
+++ b/drivers/video/tdfxfb.c
@@ -1646,7 +1646,6 @@ static void tdfxfb_remove(struct pci_dev *pdev)
 			   pci_resource_len(pdev, 1));
 	release_mem_region(pci_resource_start(pdev, 0),
 			   pci_resource_len(pdev, 0));
-	pci_set_drvdata(pdev, NULL);
 	fb_dealloc_cmap(&info->cmap);
 	framebuffer_release(info);
 }
-- 
cgit 


From e8473074924112d2f075be011f35db5bc9405577 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 16:01:18 +0900
Subject: video: tridentfb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/tridentfb.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/tridentfb.c b/drivers/video/tridentfb.c
index ab57d387d6b5..7ed9a227f5ea 100644
--- a/drivers/video/tridentfb.c
+++ b/drivers/video/tridentfb.c
@@ -1553,7 +1553,6 @@ static void trident_pci_remove(struct pci_dev *dev)
 	iounmap(info->screen_base);
 	release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
 	release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
-	pci_set_drvdata(dev, NULL);
 	kfree(info->pixmap.addr);
 	fb_dealloc_cmap(&info->cmap);
 	framebuffer_release(info);
-- 
cgit 


From fc0b01930e50074f66ab1a7fe6d6a9e1e1ef9e41 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 16:01:53 +0900
Subject: video: vt8623fb: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/vt8623fb.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/vt8623fb.c b/drivers/video/vt8623fb.c
index e9557fa014ee..6b424ddd6793 100644
--- a/drivers/video/vt8623fb.c
+++ b/drivers/video/vt8623fb.c
@@ -829,7 +829,6 @@ static void vt8623_pci_remove(struct pci_dev *dev)
 		pci_release_regions(dev);
 /*		pci_disable_device(dev); */
 
-		pci_set_drvdata(dev, NULL);
 		framebuffer_release(info);
 	}
 }
-- 
cgit 


From 93f571728f236dfaad1755f781898febb55d1d63 Mon Sep 17 00:00:00 2001
From: Peter Huewe <peterhuewe@gmx.de>
Date: Fri, 13 Sep 2013 21:51:50 +0200
Subject: video/matrox/matroxfb_maven: Use module_i2c_driver to register driver

Removing some boilerplate by using module_i2c_driver instead of calling
register and unregister in the otherwise empty init/exit functions.
Also removed a useless comment as suggested by Jean Delvare.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/matrox/matroxfb_maven.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/video/matrox/matroxfb_maven.c b/drivers/video/matrox/matroxfb_maven.c
index fd2897455696..ee41a0f276b2 100644
--- a/drivers/video/matrox/matroxfb_maven.c
+++ b/drivers/video/matrox/matroxfb_maven.c
@@ -1295,19 +1295,7 @@ static struct i2c_driver maven_driver={
 	.id_table	= maven_id,
 };
 
-static int __init matroxfb_maven_init(void)
-{
-	return i2c_add_driver(&maven_driver);
-}
-
-static void __exit matroxfb_maven_exit(void)
-{
-	i2c_del_driver(&maven_driver);
-}
-
+module_i2c_driver(maven_driver);
 MODULE_AUTHOR("(c) 1999-2002 Petr Vandrovec <vandrove@vc.cvut.cz>");
 MODULE_DESCRIPTION("Matrox G200/G400 Matrox MGA-TVO driver");
 MODULE_LICENSE("GPL");
-module_init(matroxfb_maven_init);
-module_exit(matroxfb_maven_exit);
-/* we do not have __setup() yet */
-- 
cgit 


From 32fcb97b9f699f63742bcaadca6e0beede86e8e8 Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Thu, 19 Sep 2013 11:18:06 +0200
Subject: ASoC: rt5640: Omit ACPI match table only if !ACPI

The ACPI_PTR() macro evaluates to NULL if ACPI is disabled and hence the
ACPI match table won't be used, causing the compiler to complain. Avoid
this by protecting the table using an #ifdef CONFIG_ACPI.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/rt5640.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/codecs/rt5640.c b/sound/soc/codecs/rt5640.c
index 0bfb960e90f8..641eeeb00c5c 100644
--- a/sound/soc/codecs/rt5640.c
+++ b/sound/soc/codecs/rt5640.c
@@ -2082,11 +2082,13 @@ static const struct i2c_device_id rt5640_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, rt5640_i2c_id);
 
+#ifdef CONFIG_ACPI
 static struct acpi_device_id rt5640_acpi_match[] = {
 	{ "INT33CA", 0 },
 	{ },
 };
 MODULE_DEVICE_TABLE(acpi, rt5640_acpi_match);
+#endif
 
 static int rt5640_parse_dt(struct rt5640_priv *rt5640, struct device_node *np)
 {
-- 
cgit 


From 25db0dc88016ec67ec4e38164482a3d7b7429f75 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 19 Sep 2013 12:23:44 +0530
Subject: ASoC: SPEAr spdif_out: Remove redundant variable

Return directly and remove the intermediate local variable.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/spear/spdif_out.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/sound/soc/spear/spdif_out.c b/sound/soc/spear/spdif_out.c
index 70fc4d687529..b6ef6f78dc78 100644
--- a/sound/soc/spear/spdif_out.c
+++ b/sound/soc/spear/spdif_out.c
@@ -280,7 +280,6 @@ static int spdif_out_probe(struct platform_device *pdev)
 	struct spdif_out_dev *host;
 	struct spear_spdif_platform_data *pdata;
 	struct resource *res;
-	int ret;
 
 	host = devm_kzalloc(&pdev->dev, sizeof(*host), GFP_KERNEL);
 	if (!host) {
@@ -307,9 +306,8 @@ static int spdif_out_probe(struct platform_device *pdev)
 
 	dev_set_drvdata(&pdev->dev, host);
 
-	ret = devm_snd_soc_register_component(&pdev->dev, &spdif_out_component,
-					      &spdif_out_dai, 1);
-	return ret;
+	return devm_snd_soc_register_component(&pdev->dev, &spdif_out_component,
+					       &spdif_out_dai, 1);
 }
 
 #ifdef CONFIG_PM
-- 
cgit 


From f3a82170aef72bf57f03e5c154fc94fad54968b1 Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <b.brezillon@overkiz.com>
Date: Wed, 18 Sep 2013 17:06:05 +0200
Subject: pwm: atmel-tcb: add missing clk source config

Clock source changes are never applied to the CMR register.
This may lead to wrong period/duty cycle configuration.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---
 drivers/pwm/pwm-atmel-tcb.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pwm/pwm-atmel-tcb.c b/drivers/pwm/pwm-atmel-tcb.c
index ba6ce01035e4..026696970d77 100644
--- a/drivers/pwm/pwm-atmel-tcb.c
+++ b/drivers/pwm/pwm-atmel-tcb.c
@@ -249,6 +249,8 @@ static int atmel_tcb_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
 		}
 	}
 
+	cmr |= (tcbpwm->div & ATMEL_TC_TCCLKS);
+
 	__raw_writel(cmr, regs + ATMEL_TC_REG(group, CMR));
 
 	if (index == 0)
-- 
cgit 


From ceb12f939809b3445d0b2118d4b07638bb07afa6 Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <b.brezillon@overkiz.com>
Date: Wed, 18 Sep 2013 17:06:21 +0200
Subject: pwm: atmel-tcb: fix max time computation for slow clk source

Use the the tcb counter width to compute the maximum time that can be
represented using the slow clock source instead of the static 16 bit width.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---
 drivers/pwm/pwm-atmel-tcb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pwm/pwm-atmel-tcb.c b/drivers/pwm/pwm-atmel-tcb.c
index 026696970d77..f3dcd02390f1 100644
--- a/drivers/pwm/pwm-atmel-tcb.c
+++ b/drivers/pwm/pwm-atmel-tcb.c
@@ -307,7 +307,7 @@ static int atmel_tcb_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
 		i = slowclk;
 		rate = 32768;
 		min = div_u64(NSEC_PER_SEC, rate);
-		max = min << 16;
+		max = min << tc->tcb_config->counter_width;
 
 		/* If period is too big return ERANGE error */
 		if (max < period_ns)
-- 
cgit 


From e9a03add0c6ed5341fc59ff9c76843c2888a33fa Mon Sep 17 00:00:00 2001
From: Sonic Zhang <sonic.zhang@analog.com>
Date: Tue, 3 Sep 2013 16:28:59 +0800
Subject: pinctrl: ADI PIN control driver for the GPIO controller on bf54x and
 bf60x.

The new ADI GPIO2 controller was introduced since the BF548 and BF60x
processors. It differs a lot from the old one on BF5xx processors. So,
create a pinctrl driver under the pinctrl framework.

- Define gpio ports and pin interrupt controllers as individual platform
  devices.
- Register a pinctrl driver for the whole GPIO ports and pin interrupt
  devices.
- Probe pint devices before port devices. Put device instances into
  the global gpio and pint lists.
- Define peripheral, irq and gpio reservation bit masks for each gpio
  port as runtime resources.
- Save and restore gpio port and pint status MMRs in syscore PM functions.
- Create the plug-in subdrivers to hold the pinctrl soc data for bf54x
  and bf60x. Add soc data into struct adi_pinctrl. Initialize the soc data
  in pin controller probe function. Get the pin groups and functions via
  the soc data reference.
- Call gpiochip_add_pin_range() in gpio device probe function to register
  range cross reference between gpio device and pin control device.
- Get range by pinctrl_find_gpio_range_from_pin(), find gpio_port object
  by container_of() and find adi_pinctrl by pin control device name.
- Handle peripheral and gpio requests in pinctrl operation functions.
- Demux gpio IRQs via the irq_domain created by each GPIO port.

v2-changes:
- Remove unlinke() directive.

v3-changes:
- Rename struct adi_pmx to adi_pinctrl.
- Fix the comments of struct gpio_pint.
- Remove unused pin_base in struct gpio_port.
- Change pint_assign into bool type.
- Add comments about the relationship between pint device and port device
to the driver header.
- Use BIT macro to shift bit.
- Remove all bitmap reservation help functions. Inline reservation functions
into the actual code.
- Remove gpio and offset mutual reference help functions.
- Remove all help functions to find gpio_port and adi_pinctrl structs. Get
range by pinctrl_find_gpio_range_from_pin(), find gpio_port object by
container_of() and find adi_pinctrl by pin control device name.
- Pass bool type usage variable to port_setup help function.
- Separate long bit operations into several lines and add comments.
- Use debugfs to output all GPIO request information.
- Avoid to set drvdata to NULL
- Add explanation to function adi_gpio_init_int()
- Call gpiochip_add_pin_range() in gpio device probe function to register
range cross reference between gpio device and pin control device.
- Remove the reference to pin control device from the gpio_port struct.
Remove the reference list to gpio device from the adi_pinctrl struct.
Replace the global adi_pinctrl list with adi_gpio_port_list. Walk through
the gpio list to do power suspend and resume operations.
- Remove the global GPIO base from struct adi_pinctrl, define pin base in
the platform data for each GPIO port device.
- Initialize adi_pinctrl_setup in arch_initcall().
- print the status of triggers, whether it is in GPIO mode, if it is
flagged to be used as IRQ, etc in adi_pin_dbg_show().
- Create the plug-in subdrivers to hold the pinctrl soc data for bf54x
and bf60x. Add soc data into struct adi_pinctrl. Initialize the soc data
in pin controller probe function. Get the pin groups and functions via
the soc data reference.

v4-changes:
- remove useless system_state checking.
- replace dev_err with dev_warn in both irq and gpio pin cases.
- comment on relationship between irq type and invert operation.
- It is not necessary to check the reservation mode of the requested
pin in IRQ chip operation. Remove the reservation map.
- Use existing gpio/pinctrl subsystem debugfs files. Remove pinctrl-adi2
driver specific debugfs output.
- Add linkport group and function information for bf60x.
- Separate uart and ctsrts pins into 2 groups.
- Separate APAPI and alternative ATAPI pins into 2 groups.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/Kconfig                    |   17 +
 drivers/pinctrl/Makefile                   |    3 +
 drivers/pinctrl/pinctrl-adi2-bf54x.c       |  592 ++++++++++++++
 drivers/pinctrl/pinctrl-adi2-bf60x.c       |  522 ++++++++++++
 drivers/pinctrl/pinctrl-adi2.c             | 1183 ++++++++++++++++++++++++++++
 drivers/pinctrl/pinctrl-adi2.h             |   75 ++
 include/linux/platform_data/pinctrl-adi2.h |   40 +
 7 files changed, 2432 insertions(+)
 create mode 100644 drivers/pinctrl/pinctrl-adi2-bf54x.c
 create mode 100644 drivers/pinctrl/pinctrl-adi2-bf60x.c
 create mode 100644 drivers/pinctrl/pinctrl-adi2.c
 create mode 100644 drivers/pinctrl/pinctrl-adi2.h
 create mode 100644 include/linux/platform_data/pinctrl-adi2.h

diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index b6e864e8c9e8..f45a21c57e0e 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -49,6 +49,23 @@ config PINCTRL_AB8505
 	bool "AB8505 pin controller driver"
 	depends on PINCTRL_ABX500 && ARCH_U8500
 
+config PINCTRL_ADI2
+	bool "ADI pin controller driver"
+	select PINMUX
+	select IRQ_DOMAIN
+	help
+	  This is the pin controller and gpio driver for ADI BF54x, BF60x and
+	  future processors. This option is selected automatically when specific
+	  machine and arch are selected to build.
+
+config PINCTRL_BF54x
+	def_bool y if BF54x
+	select PINCTRL_ADI2
+
+config PINCTRL_BF60x
+	def_bool y if BF60x
+	select PINCTRL_ADI2
+
 config PINCTRL_AT91
 	bool "AT91 pinctrl driver"
 	depends on OF
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index 496d9bf9e1b9..bbeb98086495 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -14,6 +14,9 @@ obj-$(CONFIG_PINCTRL_AB8500)	+= pinctrl-ab8500.o
 obj-$(CONFIG_PINCTRL_AB8540)	+= pinctrl-ab8540.o
 obj-$(CONFIG_PINCTRL_AB9540)	+= pinctrl-ab9540.o
 obj-$(CONFIG_PINCTRL_AB8505)	+= pinctrl-ab8505.o
+obj-$(CONFIG_PINCTRL_ADI2)	+= pinctrl-adi2.o
+obj-$(CONFIG_PINCTRL_BF54x)	+= pinctrl-adi2-bf54x.o
+obj-$(CONFIG_PINCTRL_BF60x)	+= pinctrl-adi2-bf60x.o
 obj-$(CONFIG_PINCTRL_AT91)	+= pinctrl-at91.o
 obj-$(CONFIG_PINCTRL_BCM2835)	+= pinctrl-bcm2835.o
 obj-$(CONFIG_PINCTRL_BAYTRAIL)	+= pinctrl-baytrail.o
diff --git a/drivers/pinctrl/pinctrl-adi2-bf54x.c b/drivers/pinctrl/pinctrl-adi2-bf54x.c
new file mode 100644
index 000000000000..ea9d9ab9cda1
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-adi2-bf54x.c
@@ -0,0 +1,592 @@
+/*
+ * Pinctrl Driver for ADI GPIO2 controller
+ *
+ * Copyright 2007-2013 Analog Devices Inc.
+ *
+ * Licensed under the GPLv2 or later
+ */
+
+#include <asm/portmux.h>
+#include "pinctrl-adi2.h"
+
+static const struct pinctrl_pin_desc adi_pads[] = {
+	PINCTRL_PIN(0, "PA0"),
+	PINCTRL_PIN(1, "PA1"),
+	PINCTRL_PIN(2, "PA2"),
+	PINCTRL_PIN(3, "PG3"),
+	PINCTRL_PIN(4, "PA4"),
+	PINCTRL_PIN(5, "PA5"),
+	PINCTRL_PIN(6, "PA6"),
+	PINCTRL_PIN(7, "PA7"),
+	PINCTRL_PIN(8, "PA8"),
+	PINCTRL_PIN(9, "PA9"),
+	PINCTRL_PIN(10, "PA10"),
+	PINCTRL_PIN(11, "PA11"),
+	PINCTRL_PIN(12, "PA12"),
+	PINCTRL_PIN(13, "PA13"),
+	PINCTRL_PIN(14, "PA14"),
+	PINCTRL_PIN(15, "PA15"),
+	PINCTRL_PIN(16, "PB0"),
+	PINCTRL_PIN(17, "PB1"),
+	PINCTRL_PIN(18, "PB2"),
+	PINCTRL_PIN(19, "PB3"),
+	PINCTRL_PIN(20, "PB4"),
+	PINCTRL_PIN(21, "PB5"),
+	PINCTRL_PIN(22, "PB6"),
+	PINCTRL_PIN(23, "PB7"),
+	PINCTRL_PIN(24, "PB8"),
+	PINCTRL_PIN(25, "PB9"),
+	PINCTRL_PIN(26, "PB10"),
+	PINCTRL_PIN(27, "PB11"),
+	PINCTRL_PIN(28, "PB12"),
+	PINCTRL_PIN(29, "PB13"),
+	PINCTRL_PIN(30, "PB14"),
+	PINCTRL_PIN(32, "PC0"),
+	PINCTRL_PIN(33, "PC1"),
+	PINCTRL_PIN(34, "PC2"),
+	PINCTRL_PIN(35, "PC3"),
+	PINCTRL_PIN(36, "PC4"),
+	PINCTRL_PIN(37, "PC5"),
+	PINCTRL_PIN(38, "PC6"),
+	PINCTRL_PIN(39, "PC7"),
+	PINCTRL_PIN(40, "PC8"),
+	PINCTRL_PIN(41, "PC9"),
+	PINCTRL_PIN(42, "PC10"),
+	PINCTRL_PIN(43, "PC11"),
+	PINCTRL_PIN(44, "PC12"),
+	PINCTRL_PIN(45, "PC13"),
+	PINCTRL_PIN(48, "PD0"),
+	PINCTRL_PIN(49, "PD1"),
+	PINCTRL_PIN(50, "PD2"),
+	PINCTRL_PIN(51, "PD3"),
+	PINCTRL_PIN(52, "PD4"),
+	PINCTRL_PIN(53, "PD5"),
+	PINCTRL_PIN(54, "PD6"),
+	PINCTRL_PIN(55, "PD7"),
+	PINCTRL_PIN(56, "PD8"),
+	PINCTRL_PIN(57, "PD9"),
+	PINCTRL_PIN(58, "PD10"),
+	PINCTRL_PIN(59, "PD11"),
+	PINCTRL_PIN(60, "PD12"),
+	PINCTRL_PIN(61, "PD13"),
+	PINCTRL_PIN(62, "PD14"),
+	PINCTRL_PIN(63, "PD15"),
+	PINCTRL_PIN(64, "PE0"),
+	PINCTRL_PIN(65, "PE1"),
+	PINCTRL_PIN(66, "PE2"),
+	PINCTRL_PIN(67, "PE3"),
+	PINCTRL_PIN(68, "PE4"),
+	PINCTRL_PIN(69, "PE5"),
+	PINCTRL_PIN(70, "PE6"),
+	PINCTRL_PIN(71, "PE7"),
+	PINCTRL_PIN(72, "PE8"),
+	PINCTRL_PIN(73, "PE9"),
+	PINCTRL_PIN(74, "PE10"),
+	PINCTRL_PIN(75, "PE11"),
+	PINCTRL_PIN(76, "PE12"),
+	PINCTRL_PIN(77, "PE13"),
+	PINCTRL_PIN(78, "PE14"),
+	PINCTRL_PIN(79, "PE15"),
+	PINCTRL_PIN(80, "PF0"),
+	PINCTRL_PIN(81, "PF1"),
+	PINCTRL_PIN(82, "PF2"),
+	PINCTRL_PIN(83, "PF3"),
+	PINCTRL_PIN(84, "PF4"),
+	PINCTRL_PIN(85, "PF5"),
+	PINCTRL_PIN(86, "PF6"),
+	PINCTRL_PIN(87, "PF7"),
+	PINCTRL_PIN(88, "PF8"),
+	PINCTRL_PIN(89, "PF9"),
+	PINCTRL_PIN(90, "PF10"),
+	PINCTRL_PIN(91, "PF11"),
+	PINCTRL_PIN(92, "PF12"),
+	PINCTRL_PIN(93, "PF13"),
+	PINCTRL_PIN(94, "PF14"),
+	PINCTRL_PIN(95, "PF15"),
+	PINCTRL_PIN(96, "PG0"),
+	PINCTRL_PIN(97, "PG1"),
+	PINCTRL_PIN(98, "PG2"),
+	PINCTRL_PIN(99, "PG3"),
+	PINCTRL_PIN(100, "PG4"),
+	PINCTRL_PIN(101, "PG5"),
+	PINCTRL_PIN(102, "PG6"),
+	PINCTRL_PIN(103, "PG7"),
+	PINCTRL_PIN(104, "PG8"),
+	PINCTRL_PIN(105, "PG9"),
+	PINCTRL_PIN(106, "PG10"),
+	PINCTRL_PIN(107, "PG11"),
+	PINCTRL_PIN(108, "PG12"),
+	PINCTRL_PIN(109, "PG13"),
+	PINCTRL_PIN(110, "PG14"),
+	PINCTRL_PIN(111, "PG15"),
+	PINCTRL_PIN(112, "PH0"),
+	PINCTRL_PIN(113, "PH1"),
+	PINCTRL_PIN(114, "PH2"),
+	PINCTRL_PIN(115, "PH3"),
+	PINCTRL_PIN(116, "PH4"),
+	PINCTRL_PIN(117, "PH5"),
+	PINCTRL_PIN(118, "PH6"),
+	PINCTRL_PIN(119, "PH7"),
+	PINCTRL_PIN(120, "PH8"),
+	PINCTRL_PIN(121, "PH9"),
+	PINCTRL_PIN(122, "PH10"),
+	PINCTRL_PIN(123, "PH11"),
+	PINCTRL_PIN(124, "PH12"),
+	PINCTRL_PIN(125, "PH13"),
+	PINCTRL_PIN(128, "PI0"),
+	PINCTRL_PIN(129, "PI1"),
+	PINCTRL_PIN(130, "PI2"),
+	PINCTRL_PIN(131, "PI3"),
+	PINCTRL_PIN(132, "PI4"),
+	PINCTRL_PIN(133, "PI5"),
+	PINCTRL_PIN(134, "PI6"),
+	PINCTRL_PIN(135, "PI7"),
+	PINCTRL_PIN(136, "PI8"),
+	PINCTRL_PIN(137, "PI9"),
+	PINCTRL_PIN(138, "PI10"),
+	PINCTRL_PIN(139, "PI11"),
+	PINCTRL_PIN(140, "PI12"),
+	PINCTRL_PIN(141, "PI13"),
+	PINCTRL_PIN(142, "PI14"),
+	PINCTRL_PIN(143, "PI15"),
+	PINCTRL_PIN(144, "PJ0"),
+	PINCTRL_PIN(145, "PJ1"),
+	PINCTRL_PIN(146, "PJ2"),
+	PINCTRL_PIN(147, "PJ3"),
+	PINCTRL_PIN(148, "PJ4"),
+	PINCTRL_PIN(149, "PJ5"),
+	PINCTRL_PIN(150, "PJ6"),
+	PINCTRL_PIN(151, "PJ7"),
+	PINCTRL_PIN(152, "PJ8"),
+	PINCTRL_PIN(153, "PJ9"),
+	PINCTRL_PIN(154, "PJ10"),
+	PINCTRL_PIN(155, "PJ11"),
+	PINCTRL_PIN(156, "PJ12"),
+	PINCTRL_PIN(157, "PJ13"),
+};
+
+static const unsigned uart0_pins[] = {
+	GPIO_PE7, GPIO_PE8,
+};
+
+static const unsigned uart1_pins[] = {
+	GPIO_PH0, GPIO_PH1,
+};
+
+static const unsigned uart1_ctsrts_pins[] = {
+	GPIO_PE9, GPIO_PE10,
+};
+
+static const unsigned uart2_pins[] = {
+	GPIO_PB4, GPIO_PB5,
+};
+
+static const unsigned uart3_pins[] = {
+	GPIO_PB6, GPIO_PB7,
+};
+
+static const unsigned uart3_ctsrts_pins[] = {
+	GPIO_PB2, GPIO_PB3,
+};
+
+static const unsigned rsi0_pins[] = {
+	GPIO_PC8, GPIO_PC9, GPIO_PC10, GPIO_PC11, GPIO_PC12, GPIO_PC13,
+};
+
+static const unsigned spi0_pins[] = {
+	GPIO_PE0, GPIO_PE1, GPIO_PE2,
+};
+
+static const unsigned spi1_pins[] = {
+	GPIO_PG8, GPIO_PG9, GPIO_PG10,
+};
+
+static const unsigned twi0_pins[] = {
+	GPIO_PE14, GPIO_PE15,
+};
+
+static const unsigned twi1_pins[] = {
+	GPIO_PB0, GPIO_PB1,
+};
+
+static const unsigned rotary_pins[] = {
+	GPIO_PH4, GPIO_PH3, GPIO_PH5,
+};
+
+static const unsigned can0_pins[] = {
+	GPIO_PG13, GPIO_PG12,
+};
+
+static const unsigned can1_pins[] = {
+	GPIO_PG14, GPIO_PG15,
+};
+
+static const unsigned smc0_pins[] = {
+	GPIO_PH8, GPIO_PH9, GPIO_PH10, GPIO_PH11, GPIO_PH12, GPIO_PH13,
+	GPIO_PI0, GPIO_PI1, GPIO_PI2, GPIO_PI3, GPIO_PI4, GPIO_PI5, GPIO_PI6,
+	GPIO_PI7, GPIO_PI8, GPIO_PI9, GPIO_PI10, GPIO_PI11,
+	GPIO_PI12, GPIO_PI13, GPIO_PI14, GPIO_PI15,
+};
+
+static const unsigned sport0_pins[] = {
+	GPIO_PC0, GPIO_PC2, GPIO_PC3, GPIO_PC4, GPIO_PC6, GPIO_PC7,
+};
+
+static const unsigned sport1_pins[] = {
+	GPIO_PD0, GPIO_PD2, GPIO_PD3, GPIO_PD4, GPIO_PD6, GPIO_PD7,
+};
+
+static const unsigned sport2_pins[] = {
+	GPIO_PA0, GPIO_PA2, GPIO_PA3, GPIO_PA4, GPIO_PA6, GPIO_PA7,
+};
+
+static const unsigned sport3_pins[] = {
+	GPIO_PA8, GPIO_PA10, GPIO_PA11, GPIO_PA12, GPIO_PA14, GPIO_PA15,
+};
+
+static const unsigned ppi0_8b_pins[] = {
+	GPIO_PF0, GPIO_PF1, GPIO_PF2, GPIO_PF3, GPIO_PF4, GPIO_PF5, GPIO_PF6,
+	GPIO_PF7, GPIO_PF13, GPIO_PG0, GPIO_PG1, GPIO_PG2,
+};
+
+static const unsigned ppi0_16b_pins[] = {
+	GPIO_PF0, GPIO_PF1, GPIO_PF2, GPIO_PF3, GPIO_PF4, GPIO_PF5, GPIO_PF6,
+	GPIO_PF7, GPIO_PF9, GPIO_PF10, GPIO_PF11, GPIO_PF12,
+	GPIO_PF13, GPIO_PF14, GPIO_PF15,
+	GPIO_PG0, GPIO_PG1, GPIO_PG2,
+};
+
+static const unsigned ppi0_24b_pins[] = {
+	GPIO_PF0, GPIO_PF1, GPIO_PF2, GPIO_PF3, GPIO_PF4, GPIO_PF5, GPIO_PF6,
+	GPIO_PF7, GPIO_PF8, GPIO_PF9, GPIO_PF10, GPIO_PF11, GPIO_PF12,
+	GPIO_PF13, GPIO_PF14, GPIO_PF15, GPIO_PD0, GPIO_PD1, GPIO_PD2,
+	GPIO_PD3, GPIO_PD4, GPIO_PD5, GPIO_PG3, GPIO_PG4,
+	GPIO_PG0, GPIO_PG1, GPIO_PG2,
+};
+
+static const unsigned ppi1_8b_pins[] = {
+	GPIO_PD0, GPIO_PD1, GPIO_PD2, GPIO_PD3, GPIO_PD4, GPIO_PD5, GPIO_PD6,
+	GPIO_PD7, GPIO_PE11, GPIO_PE12, GPIO_PE13,
+};
+
+static const unsigned ppi1_16b_pins[] = {
+	GPIO_PD0, GPIO_PD1, GPIO_PD2, GPIO_PD3, GPIO_PD4, GPIO_PD5, GPIO_PD6,
+	GPIO_PD7, GPIO_PD8, GPIO_PD9, GPIO_PD10, GPIO_PD11, GPIO_PD12,
+	GPIO_PD13, GPIO_PD14, GPIO_PD15,
+	GPIO_PE11, GPIO_PE12, GPIO_PE13,
+};
+
+static const unsigned ppi2_8b_pins[] = {
+	GPIO_PD8, GPIO_PD9, GPIO_PD10, GPIO_PD11, GPIO_PD12,
+	GPIO_PD13, GPIO_PD14, GPIO_PD15,
+	GPIO_PA7, GPIO_PB0, GPIO_PB1, GPIO_PB2, GPIO_PB3,
+};
+
+static const unsigned atapi_pins[] = {
+	GPIO_PH2, GPIO_PJ3, GPIO_PJ4, GPIO_PJ5, GPIO_PJ6,
+	GPIO_PJ7, GPIO_PJ8, GPIO_PJ9, GPIO_PJ10,
+};
+
+static const unsigned atapi_alter_pins[] = {
+	GPIO_PF0, GPIO_PF1, GPIO_PF2, GPIO_PF3, GPIO_PF4, GPIO_PF5, GPIO_PF6,
+	GPIO_PF7, GPIO_PF8, GPIO_PF9, GPIO_PF10, GPIO_PF11, GPIO_PF12,
+	GPIO_PF13, GPIO_PF14, GPIO_PF15, GPIO_PG2, GPIO_PG3, GPIO_PG4,
+};
+
+static const unsigned nfc0_pins[] = {
+	GPIO_PJ1, GPIO_PJ2,
+};
+
+static const unsigned keys_4x4_pins[] = {
+	GPIO_PD8, GPIO_PD9, GPIO_PD10, GPIO_PD11,
+	GPIO_PD12, GPIO_PD13, GPIO_PD14, GPIO_PD15,
+};
+
+static const unsigned keys_8x8_pins[] = {
+	GPIO_PD8, GPIO_PD9, GPIO_PD10, GPIO_PD11,
+	GPIO_PD12, GPIO_PD13, GPIO_PD14, GPIO_PD15,
+	GPIO_PE0, GPIO_PE1, GPIO_PE2, GPIO_PE3,
+	GPIO_PE4, GPIO_PE5, GPIO_PE6, GPIO_PE7,
+};
+
+static const struct adi_pin_group adi_pin_groups[] = {
+	ADI_PIN_GROUP("uart0grp", uart0_pins),
+	ADI_PIN_GROUP("uart1grp", uart1_pins),
+	ADI_PIN_GROUP("uart1ctsrtsgrp", uart1_ctsrts_pins),
+	ADI_PIN_GROUP("uart2grp", uart2_pins),
+	ADI_PIN_GROUP("uart3grp", uart3_pins),
+	ADI_PIN_GROUP("uart3ctsrtsgrp", uart3_ctsrts_pins),
+	ADI_PIN_GROUP("rsi0grp", rsi0_pins),
+	ADI_PIN_GROUP("spi0grp", spi0_pins),
+	ADI_PIN_GROUP("spi1grp", spi1_pins),
+	ADI_PIN_GROUP("twi0grp", twi0_pins),
+	ADI_PIN_GROUP("twi1grp", twi1_pins),
+	ADI_PIN_GROUP("rotarygrp", rotary_pins),
+	ADI_PIN_GROUP("can0grp", can0_pins),
+	ADI_PIN_GROUP("can1grp", can1_pins),
+	ADI_PIN_GROUP("smc0grp", smc0_pins),
+	ADI_PIN_GROUP("sport0grp", sport0_pins),
+	ADI_PIN_GROUP("sport1grp", sport1_pins),
+	ADI_PIN_GROUP("sport2grp", sport2_pins),
+	ADI_PIN_GROUP("sport3grp", sport3_pins),
+	ADI_PIN_GROUP("ppi0_8bgrp", ppi0_8b_pins),
+	ADI_PIN_GROUP("ppi0_16bgrp", ppi0_16b_pins),
+	ADI_PIN_GROUP("ppi0_24bgrp", ppi0_24b_pins),
+	ADI_PIN_GROUP("ppi1_8bgrp", ppi1_8b_pins),
+	ADI_PIN_GROUP("ppi1_16bgrp", ppi1_16b_pins),
+	ADI_PIN_GROUP("ppi2_8bgrp", ppi2_8b_pins),
+	ADI_PIN_GROUP("atapigrp", atapi_pins),
+	ADI_PIN_GROUP("atapialtergrp", atapi_alter_pins),
+	ADI_PIN_GROUP("nfc0grp", nfc0_pins),
+	ADI_PIN_GROUP("keys_4x4grp", keys_4x4_pins),
+	ADI_PIN_GROUP("keys_8x8grp", keys_8x8_pins),
+};
+
+static const unsigned short uart0_mux[] = {
+	P_UART0_TX, P_UART0_RX,
+	0
+};
+
+static const unsigned short uart1_mux[] = {
+	P_UART1_TX, P_UART1_RX,
+	0
+};
+
+static const unsigned short uart1_ctsrts_mux[] = {
+	P_UART1_RTS, P_UART1_CTS,
+	0
+};
+
+static const unsigned short uart2_mux[] = {
+	P_UART2_TX, P_UART2_RX,
+	0
+};
+
+static const unsigned short uart3_mux[] = {
+	P_UART3_TX, P_UART3_RX,
+	0
+};
+
+static const unsigned short uart3_ctsrts_mux[] = {
+	P_UART3_RTS, P_UART3_CTS,
+	0
+};
+
+static const unsigned short rsi0_mux[] = {
+	P_SD_D0, P_SD_D1, P_SD_D2, P_SD_D3, P_SD_CLK, P_SD_CMD,
+	0
+};
+
+static const unsigned short spi0_mux[] = {
+	P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0
+};
+
+static const unsigned short spi1_mux[] = {
+	P_SPI1_SCK, P_SPI1_MISO, P_SPI1_MOSI, 0
+};
+
+static const unsigned short twi0_mux[] = {
+	P_TWI0_SCL, P_TWI0_SDA, 0
+};
+
+static const unsigned short twi1_mux[] = {
+	P_TWI1_SCL, P_TWI1_SDA, 0
+};
+
+static const unsigned short rotary_mux[] = {
+	P_CNT_CUD, P_CNT_CDG, P_CNT_CZM, 0
+};
+
+static const unsigned short sport0_mux[] = {
+	P_SPORT0_TFS, P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS,
+	P_SPORT0_DRPRI, P_SPORT0_RSCLK, 0
+};
+
+static const unsigned short sport1_mux[] = {
+	P_SPORT1_TFS, P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_RFS,
+	P_SPORT1_DRPRI, P_SPORT1_RSCLK, 0
+};
+
+static const unsigned short sport2_mux[] = {
+	P_SPORT2_TFS, P_SPORT2_DTPRI, P_SPORT2_TSCLK, P_SPORT2_RFS,
+	P_SPORT2_DRPRI, P_SPORT2_RSCLK, 0
+};
+
+static const unsigned short sport3_mux[] = {
+	P_SPORT3_TFS, P_SPORT3_DTPRI, P_SPORT3_TSCLK, P_SPORT3_RFS,
+	P_SPORT3_DRPRI, P_SPORT3_RSCLK, 0
+};
+
+static const unsigned short can0_mux[] = {
+	P_CAN0_RX, P_CAN0_TX, 0
+};
+
+static const unsigned short can1_mux[] = {
+	P_CAN1_RX, P_CAN1_TX, 0
+};
+
+static const unsigned short smc0_mux[] = {
+	P_A4, P_A5, P_A6, P_A7, P_A8, P_A9, P_A10, P_A11, P_A12,
+	P_A13, P_A14, P_A15, P_A16, P_A17, P_A18, P_A19, P_A20, P_A21,
+	P_A22, P_A23, P_A24, P_A25, P_NOR_CLK, 0,
+};
+
+static const unsigned short ppi0_8b_mux[] = {
+	P_PPI0_D0, P_PPI0_D1, P_PPI0_D2, P_PPI0_D3,
+	P_PPI0_D4, P_PPI0_D5, P_PPI0_D6, P_PPI0_D7,
+	P_PPI0_CLK, P_PPI0_FS1, P_PPI0_FS2,
+	0,
+};
+
+static const unsigned short ppi0_16b_mux[] = {
+	P_PPI0_D0, P_PPI0_D1, P_PPI0_D2, P_PPI0_D3,
+	P_PPI0_D4, P_PPI0_D5, P_PPI0_D6, P_PPI0_D7,
+	P_PPI0_D8, P_PPI0_D9, P_PPI0_D10, P_PPI0_D11,
+	P_PPI0_D12, P_PPI0_D13, P_PPI0_D14, P_PPI0_D15,
+	P_PPI0_CLK, P_PPI0_FS1, P_PPI0_FS2,
+	0,
+};
+
+static const unsigned short ppi0_24b_mux[] = {
+	P_PPI0_D0, P_PPI0_D1, P_PPI0_D2, P_PPI0_D3,
+	P_PPI0_D4, P_PPI0_D5, P_PPI0_D6, P_PPI0_D7,
+	P_PPI0_D8, P_PPI0_D9, P_PPI0_D10, P_PPI0_D11,
+	P_PPI0_D12, P_PPI0_D13, P_PPI0_D14, P_PPI0_D15,
+	P_PPI0_D16, P_PPI0_D17, P_PPI0_D18, P_PPI0_D19,
+	P_PPI0_D20, P_PPI0_D21, P_PPI0_D22, P_PPI0_D23,
+	P_PPI0_CLK, P_PPI0_FS1, P_PPI0_FS2,
+	0,
+};
+
+static const unsigned short ppi1_8b_mux[] = {
+	P_PPI1_D0, P_PPI1_D1, P_PPI1_D2, P_PPI1_D3,
+	P_PPI1_D4, P_PPI1_D5, P_PPI1_D6, P_PPI1_D7,
+	P_PPI1_CLK, P_PPI1_FS1, P_PPI1_FS2,
+	0,
+};
+
+static const unsigned short ppi1_16b_mux[] = {
+	P_PPI1_D0, P_PPI1_D1, P_PPI1_D2, P_PPI1_D3,
+	P_PPI1_D4, P_PPI1_D5, P_PPI1_D6, P_PPI1_D7,
+	P_PPI1_D8, P_PPI1_D9, P_PPI1_D10, P_PPI1_D11,
+	P_PPI1_D12, P_PPI1_D13, P_PPI1_D14, P_PPI1_D15,
+	P_PPI1_CLK, P_PPI1_FS1, P_PPI1_FS2,
+	0,
+};
+
+static const unsigned short ppi2_8b_mux[] = {
+	P_PPI2_D0, P_PPI2_D1, P_PPI2_D2, P_PPI2_D3,
+	P_PPI2_D4, P_PPI2_D5, P_PPI2_D6, P_PPI2_D7,
+	P_PPI2_CLK, P_PPI2_FS1, P_PPI2_FS2,
+	0,
+};
+
+static const unsigned short atapi_mux[] = {
+	P_ATAPI_RESET, P_ATAPI_DIOR, P_ATAPI_DIOW, P_ATAPI_CS0, P_ATAPI_CS1,
+	P_ATAPI_DMACK, P_ATAPI_DMARQ, P_ATAPI_INTRQ, P_ATAPI_IORDY,
+};
+
+static const unsigned short atapi_alter_mux[] = {
+	P_ATAPI_D0A, P_ATAPI_D1A, P_ATAPI_D2A, P_ATAPI_D3A, P_ATAPI_D4A,
+	P_ATAPI_D5A, P_ATAPI_D6A, P_ATAPI_D7A, P_ATAPI_D8A, P_ATAPI_D9A,
+	P_ATAPI_D10A, P_ATAPI_D11A, P_ATAPI_D12A, P_ATAPI_D13A, P_ATAPI_D14A,
+	P_ATAPI_D15A, P_ATAPI_A0A, P_ATAPI_A1A, P_ATAPI_A2A,
+	0
+};
+
+static const unsigned short nfc0_mux[] = {
+	P_NAND_CE, P_NAND_RB,
+	0
+};
+
+static const unsigned short keys_4x4_mux[] = {
+	P_KEY_ROW3, P_KEY_ROW2, P_KEY_ROW1, P_KEY_ROW0,
+	P_KEY_COL3, P_KEY_COL2, P_KEY_COL1, P_KEY_COL0,
+	0
+};
+
+static const unsigned short keys_8x8_mux[] = {
+	P_KEY_ROW7, P_KEY_ROW6, P_KEY_ROW5, P_KEY_ROW4,
+	P_KEY_ROW3, P_KEY_ROW2, P_KEY_ROW1, P_KEY_ROW0,
+	P_KEY_COL7, P_KEY_COL6, P_KEY_COL5, P_KEY_COL4,
+	P_KEY_COL3, P_KEY_COL2, P_KEY_COL1, P_KEY_COL0,
+	0
+};
+
+static const char * const uart0grp[] = { "uart0grp" };
+static const char * const uart1grp[] = { "uart1grp" };
+static const char * const uart1ctsrtsgrp[] = { "uart1ctsrtsgrp" };
+static const char * const uart2grp[] = { "uart2grp" };
+static const char * const uart3grp[] = { "uart3grp" };
+static const char * const uart3ctsrtsgrp[] = { "uart3ctsrtsgrp" };
+static const char * const rsi0grp[] = { "rsi0grp" };
+static const char * const spi0grp[] = { "spi0grp" };
+static const char * const spi1grp[] = { "spi1grp" };
+static const char * const twi0grp[] = { "twi0grp" };
+static const char * const twi1grp[] = { "twi1grp" };
+static const char * const rotarygrp[] = { "rotarygrp" };
+static const char * const can0grp[] = { "can0grp" };
+static const char * const can1grp[] = { "can1grp" };
+static const char * const smc0grp[] = { "smc0grp" };
+static const char * const sport0grp[] = { "sport0grp" };
+static const char * const sport1grp[] = { "sport1grp" };
+static const char * const sport2grp[] = { "sport2grp" };
+static const char * const sport3grp[] = { "sport3grp" };
+static const char * const ppi0_8bgrp[] = { "ppi0_8bgrp" };
+static const char * const ppi0_16bgrp[] = { "ppi0_16bgrp" };
+static const char * const ppi0_24bgrp[] = { "ppi0_24bgrp" };
+static const char * const ppi1_8bgrp[] = { "ppi1_8bgrp" };
+static const char * const ppi1_16bgrp[] = { "ppi1_16bgrp" };
+static const char * const ppi2_8bgrp[] = { "ppi2_8bgrp" };
+static const char * const atapigrp[] = { "atapigrp" };
+static const char * const atapialtergrp[] = { "atapialtergrp" };
+static const char * const nfc0grp[] = { "nfc0grp" };
+static const char * const keys_4x4grp[] = { "keys_4x4grp" };
+static const char * const keys_8x8grp[] = { "keys_8x8grp" };
+
+static const struct adi_pmx_func adi_pmx_functions[] = {
+	ADI_PMX_FUNCTION("uart0", uart0grp, uart0_mux),
+	ADI_PMX_FUNCTION("uart1", uart1grp, uart1_mux),
+	ADI_PMX_FUNCTION("uart1_ctsrts", uart1ctsrtsgrp, uart1_ctsrts_mux),
+	ADI_PMX_FUNCTION("uart2", uart2grp, uart2_mux),
+	ADI_PMX_FUNCTION("uart3", uart3grp, uart3_mux),
+	ADI_PMX_FUNCTION("uart3_ctsrts", uart3ctsrtsgrp, uart3_ctsrts_mux),
+	ADI_PMX_FUNCTION("rsi0", rsi0grp, rsi0_mux),
+	ADI_PMX_FUNCTION("spi0", spi0grp, spi0_mux),
+	ADI_PMX_FUNCTION("spi1", spi1grp, spi1_mux),
+	ADI_PMX_FUNCTION("twi0", twi0grp, twi0_mux),
+	ADI_PMX_FUNCTION("twi1", twi1grp, twi1_mux),
+	ADI_PMX_FUNCTION("rotary", rotarygrp, rotary_mux),
+	ADI_PMX_FUNCTION("can0", can0grp, can0_mux),
+	ADI_PMX_FUNCTION("can1", can1grp, can1_mux),
+	ADI_PMX_FUNCTION("smc0", smc0grp, smc0_mux),
+	ADI_PMX_FUNCTION("sport0", sport0grp, sport0_mux),
+	ADI_PMX_FUNCTION("sport1", sport1grp, sport1_mux),
+	ADI_PMX_FUNCTION("sport2", sport2grp, sport2_mux),
+	ADI_PMX_FUNCTION("sport3", sport3grp, sport3_mux),
+	ADI_PMX_FUNCTION("ppi0_8b", ppi0_8bgrp, ppi0_8b_mux),
+	ADI_PMX_FUNCTION("ppi0_16b", ppi0_16bgrp, ppi0_16b_mux),
+	ADI_PMX_FUNCTION("ppi0_24b", ppi0_24bgrp, ppi0_24b_mux),
+	ADI_PMX_FUNCTION("ppi1_8b", ppi1_8bgrp, ppi1_8b_mux),
+	ADI_PMX_FUNCTION("ppi1_16b", ppi1_16bgrp, ppi1_16b_mux),
+	ADI_PMX_FUNCTION("ppi2_8b", ppi2_8bgrp, ppi2_8b_mux),
+	ADI_PMX_FUNCTION("atapi", atapigrp, atapi_mux),
+	ADI_PMX_FUNCTION("atapi_alter", atapialtergrp, atapi_alter_mux),
+	ADI_PMX_FUNCTION("nfc0", nfc0grp, nfc0_mux),
+	ADI_PMX_FUNCTION("keys_4x4", keys_4x4grp, keys_4x4_mux),
+	ADI_PMX_FUNCTION("keys_8x8", keys_8x8grp, keys_8x8_mux),
+};
+
+static const struct adi_pinctrl_soc_data adi_bf54x_soc = {
+	.functions = adi_pmx_functions,
+	.nfunctions = ARRAY_SIZE(adi_pmx_functions),
+	.groups = adi_pin_groups,
+	.ngroups = ARRAY_SIZE(adi_pin_groups),
+	.pins = adi_pads,
+	.npins = ARRAY_SIZE(adi_pads),
+};
+
+void adi_pinctrl_soc_init(const struct adi_pinctrl_soc_data **soc)
+{
+	*soc = &adi_bf54x_soc;
+}
diff --git a/drivers/pinctrl/pinctrl-adi2-bf60x.c b/drivers/pinctrl/pinctrl-adi2-bf60x.c
new file mode 100644
index 000000000000..e90cb80c8d0b
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-adi2-bf60x.c
@@ -0,0 +1,522 @@
+/*
+ * Pinctrl Driver for ADI GPIO2 controller
+ *
+ * Copyright 2007-2013 Analog Devices Inc.
+ *
+ * Licensed under the GPLv2 or later
+ */
+
+#include <asm/portmux.h>
+#include "pinctrl-adi2.h"
+
+static const struct pinctrl_pin_desc adi_pads[] = {
+	PINCTRL_PIN(0, "PA0"),
+	PINCTRL_PIN(1, "PA1"),
+	PINCTRL_PIN(2, "PA2"),
+	PINCTRL_PIN(3, "PG3"),
+	PINCTRL_PIN(4, "PA4"),
+	PINCTRL_PIN(5, "PA5"),
+	PINCTRL_PIN(6, "PA6"),
+	PINCTRL_PIN(7, "PA7"),
+	PINCTRL_PIN(8, "PA8"),
+	PINCTRL_PIN(9, "PA9"),
+	PINCTRL_PIN(10, "PA10"),
+	PINCTRL_PIN(11, "PA11"),
+	PINCTRL_PIN(12, "PA12"),
+	PINCTRL_PIN(13, "PA13"),
+	PINCTRL_PIN(14, "PA14"),
+	PINCTRL_PIN(15, "PA15"),
+	PINCTRL_PIN(16, "PB0"),
+	PINCTRL_PIN(17, "PB1"),
+	PINCTRL_PIN(18, "PB2"),
+	PINCTRL_PIN(19, "PB3"),
+	PINCTRL_PIN(20, "PB4"),
+	PINCTRL_PIN(21, "PB5"),
+	PINCTRL_PIN(22, "PB6"),
+	PINCTRL_PIN(23, "PB7"),
+	PINCTRL_PIN(24, "PB8"),
+	PINCTRL_PIN(25, "PB9"),
+	PINCTRL_PIN(26, "PB10"),
+	PINCTRL_PIN(27, "PB11"),
+	PINCTRL_PIN(28, "PB12"),
+	PINCTRL_PIN(29, "PB13"),
+	PINCTRL_PIN(30, "PB14"),
+	PINCTRL_PIN(31, "PB15"),
+	PINCTRL_PIN(32, "PC0"),
+	PINCTRL_PIN(33, "PC1"),
+	PINCTRL_PIN(34, "PC2"),
+	PINCTRL_PIN(35, "PC3"),
+	PINCTRL_PIN(36, "PC4"),
+	PINCTRL_PIN(37, "PC5"),
+	PINCTRL_PIN(38, "PC6"),
+	PINCTRL_PIN(39, "PC7"),
+	PINCTRL_PIN(40, "PC8"),
+	PINCTRL_PIN(41, "PC9"),
+	PINCTRL_PIN(42, "PC10"),
+	PINCTRL_PIN(43, "PC11"),
+	PINCTRL_PIN(44, "PC12"),
+	PINCTRL_PIN(45, "PC13"),
+	PINCTRL_PIN(46, "PC14"),
+	PINCTRL_PIN(47, "PC15"),
+	PINCTRL_PIN(48, "PD0"),
+	PINCTRL_PIN(49, "PD1"),
+	PINCTRL_PIN(50, "PD2"),
+	PINCTRL_PIN(51, "PD3"),
+	PINCTRL_PIN(52, "PD4"),
+	PINCTRL_PIN(53, "PD5"),
+	PINCTRL_PIN(54, "PD6"),
+	PINCTRL_PIN(55, "PD7"),
+	PINCTRL_PIN(56, "PD8"),
+	PINCTRL_PIN(57, "PD9"),
+	PINCTRL_PIN(58, "PD10"),
+	PINCTRL_PIN(59, "PD11"),
+	PINCTRL_PIN(60, "PD12"),
+	PINCTRL_PIN(61, "PD13"),
+	PINCTRL_PIN(62, "PD14"),
+	PINCTRL_PIN(63, "PD15"),
+	PINCTRL_PIN(64, "PE0"),
+	PINCTRL_PIN(65, "PE1"),
+	PINCTRL_PIN(66, "PE2"),
+	PINCTRL_PIN(67, "PE3"),
+	PINCTRL_PIN(68, "PE4"),
+	PINCTRL_PIN(69, "PE5"),
+	PINCTRL_PIN(70, "PE6"),
+	PINCTRL_PIN(71, "PE7"),
+	PINCTRL_PIN(72, "PE8"),
+	PINCTRL_PIN(73, "PE9"),
+	PINCTRL_PIN(74, "PE10"),
+	PINCTRL_PIN(75, "PE11"),
+	PINCTRL_PIN(76, "PE12"),
+	PINCTRL_PIN(77, "PE13"),
+	PINCTRL_PIN(78, "PE14"),
+	PINCTRL_PIN(79, "PE15"),
+	PINCTRL_PIN(80, "PF0"),
+	PINCTRL_PIN(81, "PF1"),
+	PINCTRL_PIN(82, "PF2"),
+	PINCTRL_PIN(83, "PF3"),
+	PINCTRL_PIN(84, "PF4"),
+	PINCTRL_PIN(85, "PF5"),
+	PINCTRL_PIN(86, "PF6"),
+	PINCTRL_PIN(87, "PF7"),
+	PINCTRL_PIN(88, "PF8"),
+	PINCTRL_PIN(89, "PF9"),
+	PINCTRL_PIN(90, "PF10"),
+	PINCTRL_PIN(91, "PF11"),
+	PINCTRL_PIN(92, "PF12"),
+	PINCTRL_PIN(93, "PF13"),
+	PINCTRL_PIN(94, "PF14"),
+	PINCTRL_PIN(95, "PF15"),
+	PINCTRL_PIN(96, "PG0"),
+	PINCTRL_PIN(97, "PG1"),
+	PINCTRL_PIN(98, "PG2"),
+	PINCTRL_PIN(99, "PG3"),
+	PINCTRL_PIN(100, "PG4"),
+	PINCTRL_PIN(101, "PG5"),
+	PINCTRL_PIN(102, "PG6"),
+	PINCTRL_PIN(103, "PG7"),
+	PINCTRL_PIN(104, "PG8"),
+	PINCTRL_PIN(105, "PG9"),
+	PINCTRL_PIN(106, "PG10"),
+	PINCTRL_PIN(107, "PG11"),
+	PINCTRL_PIN(108, "PG12"),
+	PINCTRL_PIN(109, "PG13"),
+	PINCTRL_PIN(110, "PG14"),
+	PINCTRL_PIN(111, "PG15"),
+};
+
+static const unsigned uart0_pins[] = {
+	GPIO_PD7, GPIO_PD8,
+};
+
+static const unsigned uart0_ctsrts_pins[] = {
+	GPIO_PD9, GPIO_PD10,
+};
+
+static const unsigned uart1_pins[] = {
+	GPIO_PG15, GPIO_PG14,
+};
+
+static const unsigned uart1_ctsrts_pins[] = {
+	GPIO_PG10, GPIO_PG13,
+};
+
+static const unsigned rsi0_pins[] = {
+	GPIO_PG3, GPIO_PG2, GPIO_PG0, GPIO_PE15, GPIO_PG5, GPIO_PG6,
+};
+
+static const unsigned eth0_pins[] = {
+	GPIO_PC6, GPIO_PC7, GPIO_PC2, GPIO_PC0, GPIO_PC3, GPIO_PC1,
+	GPIO_PB13, GPIO_PD6, GPIO_PC5, GPIO_PC4, GPIO_PB14, GPIO_PB15,
+};
+
+static const unsigned eth1_pins[] = {
+	GPIO_PE10, GPIO_PE11, GPIO_PG3, GPIO_PG0, GPIO_PG2, GPIO_PE15,
+	GPIO_PG5, GPIO_PE12, GPIO_PE13, GPIO_PE14, GPIO_PG6, GPIO_PC9,
+};
+
+static const unsigned spi0_pins[] = {
+	GPIO_PD4, GPIO_PD2, GPIO_PD3,
+};
+
+static const unsigned spi1_pins[] = {
+	GPIO_PD5, GPIO_PD14, GPIO_PD13,
+};
+
+static const unsigned twi0_pins[] = {
+};
+
+static const unsigned twi1_pins[] = {
+};
+
+static const unsigned rotary_pins[] = {
+	GPIO_PG7, GPIO_PG11, GPIO_PG12,
+};
+
+static const unsigned can0_pins[] = {
+	GPIO_PG1, GPIO_PG4,
+};
+
+static const unsigned smc0_pins[] = {
+	GPIO_PA0, GPIO_PA1, GPIO_PA2, GPIO_PA3, GPIO_PA4, GPIO_PA5, GPIO_PA6,
+	GPIO_PA7, GPIO_PA8, GPIO_PA9, GPIO_PB2, GPIO_PA10, GPIO_PA11,
+	GPIO_PB3, GPIO_PA12, GPIO_PA13, GPIO_PA14, GPIO_PA15, GPIO_PB6,
+	GPIO_PB7, GPIO_PB8, GPIO_PB10, GPIO_PB11, GPIO_PB0,
+};
+
+static const unsigned sport0_pins[] = {
+	GPIO_PB5, GPIO_PB4, GPIO_PB9, GPIO_PB8, GPIO_PB7, GPIO_PB11,
+};
+
+static const unsigned sport1_pins[] = {
+	GPIO_PE2, GPIO_PE5, GPIO_PD15, GPIO_PE4, GPIO_PE3, GPIO_PE1,
+};
+
+static const unsigned sport2_pins[] = {
+	GPIO_PG4, GPIO_PG1, GPIO_PG9, GPIO_PG10, GPIO_PG7, GPIO_PB12,
+};
+
+static const unsigned ppi0_8b_pins[] = {
+	GPIO_PF0, GPIO_PF1, GPIO_PF2, GPIO_PF3, GPIO_PF4, GPIO_PF5, GPIO_PF6,
+	GPIO_PF7, GPIO_PF13, GPIO_PF14, GPIO_PF15,
+	GPIO_PE6, GPIO_PE7, GPIO_PE8, GPIO_PE9,
+};
+
+static const unsigned ppi0_16b_pins[] = {
+	GPIO_PF0, GPIO_PF1, GPIO_PF2, GPIO_PF3, GPIO_PF4, GPIO_PF5, GPIO_PF6,
+	GPIO_PF7, GPIO_PF9, GPIO_PF10, GPIO_PF11, GPIO_PF12,
+	GPIO_PF13, GPIO_PF14, GPIO_PF15,
+	GPIO_PE6, GPIO_PE7, GPIO_PE8, GPIO_PE9,
+};
+
+static const unsigned ppi0_24b_pins[] = {
+	GPIO_PF0, GPIO_PF1, GPIO_PF2, GPIO_PF3, GPIO_PF4, GPIO_PF5, GPIO_PF6,
+	GPIO_PF7, GPIO_PF8, GPIO_PF9, GPIO_PF10, GPIO_PF11, GPIO_PF12,
+	GPIO_PF13, GPIO_PF14, GPIO_PF15, GPIO_PE0, GPIO_PE1, GPIO_PE2,
+	GPIO_PE3, GPIO_PE4, GPIO_PE5, GPIO_PE6, GPIO_PE7, GPIO_PE8,
+	GPIO_PE9, GPIO_PD12, GPIO_PD15,
+};
+
+static const unsigned ppi1_8b_pins[] = {
+	GPIO_PC0, GPIO_PC1, GPIO_PC2, GPIO_PC3, GPIO_PC4, GPIO_PC5, GPIO_PC6,
+	GPIO_PC7, GPIO_PC8, GPIO_PB13, GPIO_PB14, GPIO_PB15, GPIO_PD6,
+};
+
+static const unsigned ppi1_16b_pins[] = {
+	GPIO_PC0, GPIO_PC1, GPIO_PC2, GPIO_PC3, GPIO_PC4, GPIO_PC5, GPIO_PC6,
+	GPIO_PC7, GPIO_PC9, GPIO_PC10, GPIO_PC11, GPIO_PC12,
+	GPIO_PC13, GPIO_PC14, GPIO_PC15,
+	GPIO_PB13, GPIO_PB14, GPIO_PB15, GPIO_PD6,
+};
+
+static const unsigned ppi2_8b_pins[] = {
+	GPIO_PA0, GPIO_PA1, GPIO_PA2, GPIO_PA3, GPIO_PA4, GPIO_PA5, GPIO_PA6,
+	GPIO_PA7, GPIO_PB0, GPIO_PB1, GPIO_PB2, GPIO_PB3,
+};
+
+static const unsigned ppi2_16b_pins[] = {
+	GPIO_PA0, GPIO_PA1, GPIO_PA2, GPIO_PA3, GPIO_PA4, GPIO_PA5, GPIO_PA6,
+	GPIO_PA7, GPIO_PA8, GPIO_PA9, GPIO_PA10, GPIO_PA11, GPIO_PA12,
+	GPIO_PA13, GPIO_PA14, GPIO_PA15,
+	GPIO_PA7, GPIO_PB0, GPIO_PB1, GPIO_PB2, GPIO_PB3,
+};
+
+static const unsigned lp0_pins[] = {
+	GPIO_PB0, GPIO_PB1, GPIO_PA0, GPIO_PA1, GPIO_PA2, GPIO_PA3,
+	GPIO_PA4, GPIO_PA5, GPIO_PA6, GPIO_PA7,
+};
+
+static const unsigned lp1_pins[] = {
+	GPIO_PB3, GPIO_PB2, GPIO_PA8, GPIO_PA9, GPIO_PA10, GPIO_PA11,
+	GPIO_PA12, GPIO_PA13, GPIO_PA14, GPIO_PA15,
+};
+
+static const unsigned lp2_pins[] = {
+	GPIO_PE6, GPIO_PE7, GPIO_PF0, GPIO_PF1, GPIO_PF2, GPIO_PF3,
+	GPIO_PF4, GPIO_PF5, GPIO_PF6, GPIO_PF7,
+};
+
+static const unsigned lp3_pins[] = {
+	GPIO_PE9, GPIO_PE8, GPIO_PF8, GPIO_PF9, GPIO_PF10, GPIO_PF11,
+	GPIO_PF12, GPIO_PF13, GPIO_PF14, GPIO_PF15,
+};
+
+static const struct adi_pin_group adi_pin_groups[] = {
+	ADI_PIN_GROUP("uart0grp", uart0_pins),
+	ADI_PIN_GROUP("uart0ctsrtsgrp", uart0_ctsrts_pins),
+	ADI_PIN_GROUP("uart1grp", uart1_pins),
+	ADI_PIN_GROUP("uart1ctsrtsgrp", uart1_ctsrts_pins),
+	ADI_PIN_GROUP("rsi0grp", rsi0_pins),
+	ADI_PIN_GROUP("eth0grp", eth0_pins),
+	ADI_PIN_GROUP("eth1grp", eth1_pins),
+	ADI_PIN_GROUP("spi0grp", spi0_pins),
+	ADI_PIN_GROUP("spi1grp", spi1_pins),
+	ADI_PIN_GROUP("twi0grp", twi0_pins),
+	ADI_PIN_GROUP("twi1grp", twi1_pins),
+	ADI_PIN_GROUP("rotarygrp", rotary_pins),
+	ADI_PIN_GROUP("can0grp", can0_pins),
+	ADI_PIN_GROUP("smc0grp", smc0_pins),
+	ADI_PIN_GROUP("sport0grp", sport0_pins),
+	ADI_PIN_GROUP("sport1grp", sport1_pins),
+	ADI_PIN_GROUP("sport2grp", sport2_pins),
+	ADI_PIN_GROUP("ppi0_8bgrp", ppi0_8b_pins),
+	ADI_PIN_GROUP("ppi0_16bgrp", ppi0_16b_pins),
+	ADI_PIN_GROUP("ppi0_24bgrp", ppi0_24b_pins),
+	ADI_PIN_GROUP("ppi1_8bgrp", ppi1_8b_pins),
+	ADI_PIN_GROUP("ppi1_16bgrp", ppi1_16b_pins),
+	ADI_PIN_GROUP("ppi2_8bgrp", ppi2_8b_pins),
+	ADI_PIN_GROUP("ppi2_16bgrp", ppi2_16b_pins),
+	ADI_PIN_GROUP("lp0grp", lp0_pins),
+	ADI_PIN_GROUP("lp1grp", lp1_pins),
+	ADI_PIN_GROUP("lp2grp", lp2_pins),
+	ADI_PIN_GROUP("lp3grp", lp3_pins),
+};
+
+static const unsigned short uart0_mux[] = {
+	P_UART0_TX, P_UART0_RX,
+	0
+};
+
+static const unsigned short uart0_ctsrts_mux[] = {
+	P_UART0_RTS, P_UART0_CTS,
+	0
+};
+
+static const unsigned short uart1_mux[] = {
+	P_UART1_TX, P_UART1_RX,
+	0
+};
+
+static const unsigned short uart1_ctsrts_mux[] = {
+	P_UART1_RTS, P_UART1_CTS,
+	0
+};
+
+static const unsigned short rsi0_mux[] = {
+	P_RSI_DATA0, P_RSI_DATA1, P_RSI_DATA2, P_RSI_DATA3,
+	P_RSI_CMD, P_RSI_CLK, 0
+};
+
+static const unsigned short eth0_mux[] = P_RMII0;
+static const unsigned short eth1_mux[] = P_RMII1;
+
+static const unsigned short spi0_mux[] = {
+	P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0
+};
+
+static const unsigned short spi1_mux[] = {
+	P_SPI1_SCK, P_SPI1_MISO, P_SPI1_MOSI, 0
+};
+
+static const unsigned short twi0_mux[] = {
+	P_TWI0_SCL, P_TWI0_SDA, 0
+};
+
+static const unsigned short twi1_mux[] = {
+	P_TWI1_SCL, P_TWI1_SDA, 0
+};
+
+static const unsigned short rotary_mux[] = {
+	P_CNT_CUD, P_CNT_CDG, P_CNT_CZM, 0
+};
+
+static const unsigned short sport0_mux[] = {
+	P_SPORT0_ACLK, P_SPORT0_AFS, P_SPORT0_AD0, P_SPORT0_BCLK,
+	P_SPORT0_BFS, P_SPORT0_BD0, 0,
+};
+
+static const unsigned short sport1_mux[] = {
+	P_SPORT1_ACLK, P_SPORT1_AFS, P_SPORT1_AD0, P_SPORT1_BCLK,
+	P_SPORT1_BFS, P_SPORT1_BD0, 0,
+};
+
+static const unsigned short sport2_mux[] = {
+	P_SPORT2_ACLK, P_SPORT2_AFS, P_SPORT2_AD0, P_SPORT2_BCLK,
+	P_SPORT2_BFS, P_SPORT2_BD0, 0,
+};
+
+static const unsigned short can0_mux[] = {
+	P_CAN0_RX, P_CAN0_TX, 0
+};
+
+static const unsigned short smc0_mux[] = {
+	P_A3, P_A4, P_A5, P_A6, P_A7, P_A8, P_A9, P_A10, P_A11, P_A12,
+	P_A13, P_A14, P_A15, P_A16, P_A17, P_A18, P_A19, P_A20, P_A21,
+	P_A22, P_A23, P_A24, P_A25, P_NORCK, 0,
+};
+
+static const unsigned short ppi0_8b_mux[] = {
+	P_PPI0_D0, P_PPI0_D1, P_PPI0_D2, P_PPI0_D3,
+	P_PPI0_D4, P_PPI0_D5, P_PPI0_D6, P_PPI0_D7,
+	P_PPI0_CLK, P_PPI0_FS1, P_PPI0_FS2,
+	0,
+};
+
+static const unsigned short ppi0_16b_mux[] = {
+	P_PPI0_D0, P_PPI0_D1, P_PPI0_D2, P_PPI0_D3,
+	P_PPI0_D4, P_PPI0_D5, P_PPI0_D6, P_PPI0_D7,
+	P_PPI0_D8, P_PPI0_D9, P_PPI0_D10, P_PPI0_D11,
+	P_PPI0_D12, P_PPI0_D13, P_PPI0_D14, P_PPI0_D15,
+	P_PPI0_CLK, P_PPI0_FS1, P_PPI0_FS2,
+	0,
+};
+
+static const unsigned short ppi0_24b_mux[] = {
+	P_PPI0_D0, P_PPI0_D1, P_PPI0_D2, P_PPI0_D3,
+	P_PPI0_D4, P_PPI0_D5, P_PPI0_D6, P_PPI0_D7,
+	P_PPI0_D8, P_PPI0_D9, P_PPI0_D10, P_PPI0_D11,
+	P_PPI0_D12, P_PPI0_D13, P_PPI0_D14, P_PPI0_D15,
+	P_PPI0_D16, P_PPI0_D17, P_PPI0_D18, P_PPI0_D19,
+	P_PPI0_D20, P_PPI0_D21, P_PPI0_D22, P_PPI0_D23,
+	P_PPI0_CLK, P_PPI0_FS1, P_PPI0_FS2,
+	0,
+};
+
+static const unsigned short ppi1_8b_mux[] = {
+	P_PPI1_D0, P_PPI1_D1, P_PPI1_D2, P_PPI1_D3,
+	P_PPI1_D4, P_PPI1_D5, P_PPI1_D6, P_PPI1_D7,
+	P_PPI1_CLK, P_PPI1_FS1, P_PPI1_FS2,
+	0,
+};
+
+static const unsigned short ppi1_16b_mux[] = {
+	P_PPI1_D0, P_PPI1_D1, P_PPI1_D2, P_PPI1_D3,
+	P_PPI1_D4, P_PPI1_D5, P_PPI1_D6, P_PPI1_D7,
+	P_PPI1_D8, P_PPI1_D9, P_PPI1_D10, P_PPI1_D11,
+	P_PPI1_D12, P_PPI1_D13, P_PPI1_D14, P_PPI1_D15,
+	P_PPI1_CLK, P_PPI1_FS1, P_PPI1_FS2,
+	0,
+};
+
+static const unsigned short ppi2_8b_mux[] = {
+	P_PPI2_D0, P_PPI2_D1, P_PPI2_D2, P_PPI2_D3,
+	P_PPI2_D4, P_PPI2_D5, P_PPI2_D6, P_PPI2_D7,
+	P_PPI2_CLK, P_PPI2_FS1, P_PPI2_FS2,
+	0,
+};
+
+static const unsigned short ppi2_16b_mux[] = {
+	P_PPI2_D0, P_PPI2_D1, P_PPI2_D2, P_PPI2_D3,
+	P_PPI2_D4, P_PPI2_D5, P_PPI2_D6, P_PPI2_D7,
+	P_PPI2_D8, P_PPI2_D9, P_PPI2_D10, P_PPI2_D11,
+	P_PPI2_D12, P_PPI2_D13, P_PPI2_D14, P_PPI2_D15,
+	P_PPI2_CLK, P_PPI2_FS1, P_PPI2_FS2,
+	0,
+};
+
+static const unsigned short lp0_mux[] = {
+	P_LP0_CLK, P_LP0_ACK, P_LP0_D0, P_LP0_D1, P_LP0_D2,
+	P_LP0_D3, P_LP0_D4, P_LP0_D5, P_LP0_D6, P_LP0_D7,
+        0
+};
+
+static const unsigned short lp1_mux[] = {
+	P_LP1_CLK, P_LP1_ACK, P_LP1_D0, P_LP1_D1, P_LP1_D2,
+	P_LP1_D3, P_LP1_D4, P_LP1_D5, P_LP1_D6, P_LP1_D7,
+        0
+};
+
+static const unsigned short lp2_mux[] = {
+	P_LP2_CLK, P_LP2_ACK, P_LP2_D0, P_LP2_D1, P_LP2_D2,
+	P_LP2_D3, P_LP2_D4, P_LP2_D5, P_LP2_D6, P_LP2_D7,
+        0
+};
+
+static const unsigned short lp3_mux[] = {
+	P_LP3_CLK, P_LP3_ACK, P_LP3_D0, P_LP3_D1, P_LP3_D2,
+	P_LP3_D3, P_LP3_D4, P_LP3_D5, P_LP3_D6, P_LP3_D7,
+        0
+};
+
+static const char * const uart0grp[] = { "uart0grp" };
+static const char * const uart0ctsrtsgrp[] = { "uart0ctsrtsgrp" };
+static const char * const uart1grp[] = { "uart1grp" };
+static const char * const uart1ctsrtsgrp[] = { "uart1ctsrtsgrp" };
+static const char * const rsi0grp[] = { "rsi0grp" };
+static const char * const eth0grp[] = { "eth0grp" };
+static const char * const eth1grp[] = { "eth1grp" };
+static const char * const spi0grp[] = { "spi0grp" };
+static const char * const spi1grp[] = { "spi1grp" };
+static const char * const twi0grp[] = { "twi0grp" };
+static const char * const twi1grp[] = { "twi1grp" };
+static const char * const rotarygrp[] = { "rotarygrp" };
+static const char * const can0grp[] = { "can0grp" };
+static const char * const smc0grp[] = { "smc0grp" };
+static const char * const sport0grp[] = { "sport0grp" };
+static const char * const sport1grp[] = { "sport1grp" };
+static const char * const sport2grp[] = { "sport2grp" };
+static const char * const ppi0_8bgrp[] = { "ppi0_8bgrp" };
+static const char * const ppi0_16bgrp[] = { "ppi0_16bgrp" };
+static const char * const ppi0_24bgrp[] = { "ppi0_24bgrp" };
+static const char * const ppi1_8bgrp[] = { "ppi1_8bgrp" };
+static const char * const ppi1_16bgrp[] = { "ppi1_16bgrp" };
+static const char * const ppi2_8bgrp[] = { "ppi2_8bgrp" };
+static const char * const ppi2_16bgrp[] = { "ppi2_16bgrp" };
+static const char * const lp0grp[] = { "lp0grp" };
+static const char * const lp1grp[] = { "lp1grp" };
+static const char * const lp2grp[] = { "lp2grp" };
+static const char * const lp3grp[] = { "lp3grp" };
+
+static const struct adi_pmx_func adi_pmx_functions[] = {
+	ADI_PMX_FUNCTION("uart0", uart0grp, uart0_mux),
+	ADI_PMX_FUNCTION("uart0_ctsrts", uart0ctsrtsgrp, uart0_ctsrts_mux),
+	ADI_PMX_FUNCTION("uart1", uart1grp, uart1_mux),
+	ADI_PMX_FUNCTION("uart1_ctsrts", uart1ctsrtsgrp, uart1_ctsrts_mux),
+	ADI_PMX_FUNCTION("rsi0", rsi0grp, rsi0_mux),
+	ADI_PMX_FUNCTION("eth0", eth0grp, eth0_mux),
+	ADI_PMX_FUNCTION("eth1", eth1grp, eth1_mux),
+	ADI_PMX_FUNCTION("spi0", spi0grp, spi0_mux),
+	ADI_PMX_FUNCTION("spi1", spi1grp, spi1_mux),
+	ADI_PMX_FUNCTION("twi0", twi0grp, twi0_mux),
+	ADI_PMX_FUNCTION("twi1", twi1grp, twi1_mux),
+	ADI_PMX_FUNCTION("rotary", rotarygrp, rotary_mux),
+	ADI_PMX_FUNCTION("can0", can0grp, can0_mux),
+	ADI_PMX_FUNCTION("smc0", smc0grp, smc0_mux),
+	ADI_PMX_FUNCTION("sport0", sport0grp, sport0_mux),
+	ADI_PMX_FUNCTION("sport1", sport1grp, sport1_mux),
+	ADI_PMX_FUNCTION("sport2", sport2grp, sport2_mux),
+	ADI_PMX_FUNCTION("ppi0_8b", ppi0_8bgrp, ppi0_8b_mux),
+	ADI_PMX_FUNCTION("ppi0_16b", ppi0_16bgrp, ppi0_16b_mux),
+	ADI_PMX_FUNCTION("ppi0_24b", ppi0_24bgrp, ppi0_24b_mux),
+	ADI_PMX_FUNCTION("ppi1_8b", ppi1_8bgrp, ppi1_8b_mux),
+	ADI_PMX_FUNCTION("ppi1_16b", ppi1_16bgrp, ppi1_16b_mux),
+	ADI_PMX_FUNCTION("ppi2_8b", ppi2_8bgrp, ppi2_8b_mux),
+	ADI_PMX_FUNCTION("ppi2_16b", ppi2_16bgrp, ppi2_16b_mux),
+	ADI_PMX_FUNCTION("lp0", lp0grp, lp0_mux),
+	ADI_PMX_FUNCTION("lp1", lp1grp, lp1_mux),
+	ADI_PMX_FUNCTION("lp2", lp2grp, lp2_mux),
+	ADI_PMX_FUNCTION("lp3", lp3grp, lp3_mux),
+};
+
+static const struct adi_pinctrl_soc_data adi_bf60x_soc = {
+	.functions = adi_pmx_functions,
+	.nfunctions = ARRAY_SIZE(adi_pmx_functions),
+	.groups = adi_pin_groups,
+	.ngroups = ARRAY_SIZE(adi_pin_groups),
+	.pins = adi_pads,
+	.npins = ARRAY_SIZE(adi_pads),
+};
+
+void adi_pinctrl_soc_init(const struct adi_pinctrl_soc_data **soc)
+{
+	*soc = &adi_bf60x_soc;
+}
diff --git a/drivers/pinctrl/pinctrl-adi2.c b/drivers/pinctrl/pinctrl-adi2.c
new file mode 100644
index 000000000000..7a24e59b4138
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-adi2.c
@@ -0,0 +1,1183 @@
+/*
+ * Pinctrl Driver for ADI GPIO2 controller
+ *
+ * Copyright 2007-2013 Analog Devices Inc.
+ *
+ * Licensed under the GPLv2 or later
+ */
+
+#include <linux/bitops.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/irq.h>
+#include <linux/platform_data/pinctrl-adi2.h>
+#include <linux/irqdomain.h>
+#include <linux/irqchip/chained_irq.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/pinctrl/machine.h>
+#include <linux/syscore_ops.h>
+#include <linux/gpio.h>
+#include <asm/portmux.h>
+#include "pinctrl-adi2.h"
+#include "core.h"
+
+/*
+According to the BF54x HRM, pint means "pin interrupt".
+http://www.analog.com/static/imported-files/processor_manuals/ADSP-BF54x_hwr_rev1.2.pdf
+
+ADSP-BF54x processor Blackfin processors have four SIC interrupt chan-
+nels dedicated to pin interrupt purposes. These channels are managed by
+four hardware blocks, called PINT0, PINT1, PINT2, and PINT3. Every PINTx
+block can sense to up to 32 pins. While PINT0 and PINT1 can sense the
+pins of port A and port B, PINT2 and PINT3 manage all the pins from port
+C to port J as shown in Figure 9-2.
+
+n BF54x HRM:
+The ten GPIO ports are subdivided into 8-bit half ports, resulting in lower and
+upper half 8-bit units. The PINTx_ASSIGN registers control the 8-bit multi-
+plexers shown in Figure 9-3. Lower half units of eight pins can be
+forwarded to either byte 0 or byte 2 of either associated PINTx block.
+Upper half units can be forwarded to either byte 1 or byte 3 of the pin
+interrupt blocks, without further restrictions.
+
+All MMR registers in the pin interrupt module are 32 bits wide. To simply the
+mapping logic, this driver only maps a 16-bit gpio port to the upper or lower
+16 bits of a PINTx block. You can find the Figure 9-3 on page 583.
+
+Each IRQ domain is binding to a GPIO bank device. 2 GPIO bank devices can map
+to one PINT device. Two in "struct gpio_pint" are used to ease the PINT
+interrupt handler.
+
+The GPIO bank mapping to the lower 16 bits of the PINT device set its IRQ
+domain pointer in domain[0]. The IRQ domain pointer of the other bank is set
+to domain[1]. PINT interrupt handler adi_gpio_handle_pint_irq() finds out
+the current domain pointer according to whether the interrupt request mask
+is in lower 16 bits (domain[0]) or upper 16bits (domain[1]).
+
+A PINT device is not part of a GPIO port device in Blackfin. Multiple GPIO
+port devices can be mapped to the same PINT device.
+
+*/
+
+static LIST_HEAD(adi_pint_list);
+static LIST_HEAD(adi_gpio_port_list);
+
+#define DRIVER_NAME "pinctrl-adi2"
+
+#define PINT_HI_OFFSET		16
+
+/**
+ * struct gpio_port_saved - GPIO port registers that should be saved between
+ * power suspend and resume operations.
+ *
+ * @fer: PORTx_FER register
+ * @data: PORTx_DATA register
+ * @dir: PORTx_DIR register
+ * @inen: PORTx_INEN register
+ * @mux: PORTx_MUX register
+ */
+struct gpio_port_saved {
+	u16 fer;
+	u16 data;
+	u16 dir;
+	u16 inen;
+	u32 mux;
+};
+
+/**
+ * struct gpio_pint - Pin interrupt controller device. Multiple ADI GPIO
+ * banks can be mapped into one Pin interrupt controller.
+ *
+ * @node: All gpio_pint instances are added to a global list.
+ * @base: PINT device register base address
+ * @irq: IRQ of the PINT device, it is the parent IRQ of all
+ *       GPIO IRQs mapping to this device.
+ * @domain: [0] irq domain of the gpio port, whose hardware interrupts are
+ *		mapping to the low 16-bit of the pint registers.
+ *          [1] irq domain of the gpio port, whose hardware interrupts are
+ *		mapping to the high 16-bit of the pint registers.
+ * @regs: address pointer to the PINT device
+ * @map_count: No more than 2 GPIO banks can be mapped to this PINT device.
+ * @lock: This lock make sure the irq_chip operations to one PINT device
+ *        for different GPIO interrrupts are atomic.
+ * @pint_map_port: Set up the mapping between one PINT device and
+ *                 multiple GPIO banks.
+ */
+struct gpio_pint {
+	struct list_head node;
+	void __iomem *base;
+	int irq;
+	struct irq_domain *domain[2];
+	struct gpio_pint_regs *regs;
+	struct adi_pm_pint_save saved_data;
+	int map_count;
+	spinlock_t lock;
+
+	int (*pint_map_port)(struct gpio_pint *pint, bool assign,
+				u8 map, struct irq_domain *domain);
+};
+
+/**
+ * ADI pin controller
+ *
+ * @dev: a pointer back to containing device
+ * @pctl: the pinctrl device
+ * @soc: SoC data for this specific chip
+ */
+struct adi_pinctrl {
+	struct device *dev;
+	struct pinctrl_dev *pctl;
+	const struct adi_pinctrl_soc_data *soc;
+};
+
+/**
+ * struct gpio_port - GPIO bank device. Multiple ADI GPIO banks can be mapped
+ * into one pin interrupt controller.
+ *
+ * @node: All gpio_port instances are added to a list.
+ * @base: GPIO bank device register base address
+ * @irq_base: base IRQ of the GPIO bank device
+ * @width: PIN number of the GPIO bank device
+ * @regs: address pointer to the GPIO bank device
+ * @saved_data: registers that should be saved between PM operations.
+ * @dev: device structure of this GPIO bank
+ * @pint: GPIO PINT device that this GPIO bank mapped to
+ * @pint_map: GIOP bank mapping code in PINT device
+ * @pint_assign: The 32-bit PINT registers can be divided into 2 parts. A
+ *               GPIO bank can be mapped into either low 16 bits[0] or high 16
+ *               bits[1] of each PINT register.
+ * @lock: This lock make sure the irq_chip operations to one PINT device
+ *        for different GPIO interrrupts are atomic.
+ * @chip: abstract a GPIO controller
+ * @domain: The irq domain owned by the GPIO port.
+ * @rsvmap: Reservation map array for each pin in the GPIO bank
+ */
+struct gpio_port {
+	struct list_head node;
+	void __iomem *base;
+	unsigned int irq_base;
+	unsigned int width;
+	struct gpio_port_t *regs;
+	struct gpio_port_saved saved_data;
+	struct device *dev;
+
+	struct gpio_pint *pint;
+	u8 pint_map;
+	bool pint_assign;
+
+	spinlock_t lock;
+	struct gpio_chip chip;
+	struct irq_domain *domain;
+};
+
+static inline u8 pin_to_offset(struct pinctrl_gpio_range *range, unsigned pin)
+{
+	return pin - range->pin_base;
+}
+
+static inline u32 hwirq_to_pintbit(struct gpio_port *port, int hwirq)
+{
+	return port->pint_assign ? BIT(hwirq) << PINT_HI_OFFSET : BIT(hwirq);
+}
+
+static struct gpio_pint *find_gpio_pint(unsigned id)
+{
+	struct gpio_pint *pint;
+	int i = 0;
+
+	list_for_each_entry(pint, &adi_pint_list, node) {
+		if (id == i)
+			return pint;
+		i++;
+	}
+
+	return NULL;
+}
+
+static inline void port_setup(struct gpio_port *port, unsigned offset,
+	bool use_for_gpio)
+{
+	struct gpio_port_t *regs = port->regs;
+
+	if (use_for_gpio)
+		writew(readw(&regs->port_fer) & ~BIT(offset),
+			&regs->port_fer);
+	else
+		writew(readw(&regs->port_fer) | BIT(offset), &regs->port_fer);
+}
+
+static inline void portmux_setup(struct gpio_port *port, unsigned offset,
+	unsigned short function)
+{
+	struct gpio_port_t *regs = port->regs;
+	u32 pmux;
+
+	pmux = readl(&regs->port_mux);
+
+	/* The function field of each pin has 2 consecutive bits in
+	 * the mux register.
+	 */
+	pmux &= ~(0x3 << (2 * offset));
+	pmux |= (function & 0x3) << (2 * offset);
+
+	writel(pmux, &regs->port_mux);
+}
+
+static inline u16 get_portmux(struct gpio_port *port, unsigned offset)
+{
+	struct gpio_port_t *regs = port->regs;
+	u32 pmux = readl(&regs->port_mux);
+
+	/* The function field of each pin has 2 consecutive bits in
+	 * the mux register.
+	 */
+	return pmux >> (2 * offset) & 0x3;
+}
+
+static void adi_gpio_ack_irq(struct irq_data *d)
+{
+	unsigned long flags;
+	struct gpio_port *port = irq_data_get_irq_chip_data(d);
+	struct gpio_pint_regs *regs = port->pint->regs;
+	unsigned pintbit = hwirq_to_pintbit(port, d->hwirq);
+
+	spin_lock_irqsave(&port->lock, flags);
+	spin_lock_irqsave(&port->pint->lock, flags);
+
+	if (irqd_get_trigger_type(d) == IRQ_TYPE_EDGE_BOTH) {
+		if (readl(&regs->invert_set) & pintbit)
+			writel(pintbit, &regs->invert_clear);
+		else
+			writel(pintbit, &regs->invert_set);
+	}
+
+	writel(pintbit, &regs->request);
+
+	spin_unlock_irqrestore(&port->pint->lock, flags);
+	spin_unlock_irqrestore(&port->lock, flags);
+}
+
+static void adi_gpio_mask_ack_irq(struct irq_data *d)
+{
+	unsigned long flags;
+	struct gpio_port *port = irq_data_get_irq_chip_data(d);
+	struct gpio_pint_regs *regs = port->pint->regs;
+	unsigned pintbit = hwirq_to_pintbit(port, d->hwirq);
+
+	spin_lock_irqsave(&port->lock, flags);
+	spin_lock_irqsave(&port->pint->lock, flags);
+
+	if (irqd_get_trigger_type(d) == IRQ_TYPE_EDGE_BOTH) {
+		if (readl(&regs->invert_set) & pintbit)
+			writel(pintbit, &regs->invert_clear);
+		else
+			writel(pintbit, &regs->invert_set);
+	}
+
+	writel(pintbit, &regs->request);
+	writel(pintbit, &regs->mask_clear);
+
+	spin_unlock_irqrestore(&port->pint->lock, flags);
+	spin_unlock_irqrestore(&port->lock, flags);
+}
+
+static void adi_gpio_mask_irq(struct irq_data *d)
+{
+	unsigned long flags;
+	struct gpio_port *port = irq_data_get_irq_chip_data(d);
+	struct gpio_pint_regs *regs = port->pint->regs;
+
+	spin_lock_irqsave(&port->lock, flags);
+	spin_lock_irqsave(&port->pint->lock, flags);
+
+	writel(hwirq_to_pintbit(port, d->hwirq), &regs->mask_clear);
+
+	spin_unlock_irqrestore(&port->pint->lock, flags);
+	spin_unlock_irqrestore(&port->lock, flags);
+}
+
+static void adi_gpio_unmask_irq(struct irq_data *d)
+{
+	unsigned long flags;
+	struct gpio_port *port = irq_data_get_irq_chip_data(d);
+	struct gpio_pint_regs *regs = port->pint->regs;
+
+	spin_lock_irqsave(&port->lock, flags);
+	spin_lock_irqsave(&port->pint->lock, flags);
+
+	writel(hwirq_to_pintbit(port, d->hwirq), &regs->mask_set);
+
+	spin_unlock_irqrestore(&port->pint->lock, flags);
+	spin_unlock_irqrestore(&port->lock, flags);
+}
+
+static unsigned int adi_gpio_irq_startup(struct irq_data *d)
+{
+	unsigned long flags;
+	struct gpio_port *port = irq_data_get_irq_chip_data(d);
+	struct gpio_pint_regs *regs = port->pint->regs;
+
+	if (!port) {
+		dev_err(port->dev, "GPIO IRQ %d :Not exist\n", d->irq);
+		return -ENODEV;
+	}
+
+	spin_lock_irqsave(&port->lock, flags);
+	spin_lock_irqsave(&port->pint->lock, flags);
+
+	port_setup(port, d->hwirq, true);
+	writew(BIT(d->hwirq), &port->regs->dir_clear);
+	writew(readw(&port->regs->inen) | BIT(d->hwirq), &port->regs->inen);
+
+	writel(hwirq_to_pintbit(port, d->hwirq), &regs->mask_set);
+
+	spin_unlock_irqrestore(&port->pint->lock, flags);
+	spin_unlock_irqrestore(&port->lock, flags);
+
+	return 0;
+}
+
+static void adi_gpio_irq_shutdown(struct irq_data *d)
+{
+	unsigned long flags;
+	struct gpio_port *port = irq_data_get_irq_chip_data(d);
+	struct gpio_pint_regs *regs = port->pint->regs;
+
+	spin_lock_irqsave(&port->lock, flags);
+	spin_lock_irqsave(&port->pint->lock, flags);
+
+	writel(hwirq_to_pintbit(port, d->hwirq), &regs->mask_clear);
+
+	spin_unlock_irqrestore(&port->pint->lock, flags);
+	spin_unlock_irqrestore(&port->lock, flags);
+}
+
+static int adi_gpio_irq_type(struct irq_data *d, unsigned int type)
+{
+	unsigned long flags;
+	struct gpio_port *port = irq_data_get_irq_chip_data(d);
+	struct gpio_pint_regs *pint_regs = port->pint->regs;
+	unsigned pintmask;
+	unsigned int irq = d->irq;
+	int ret = 0;
+	char buf[16];
+
+	if (!port) {
+		dev_err(port->dev, "GPIO IRQ %d :Not exist\n", irq);
+		return -ENODEV;
+	}
+
+	pintmask = hwirq_to_pintbit(port, d->hwirq);
+
+	spin_lock_irqsave(&port->lock, flags);
+	spin_lock_irqsave(&port->pint->lock, flags);
+
+	/* In case of interrupt autodetect, set irq type to edge sensitive. */
+	if (type == IRQ_TYPE_PROBE)
+		type = IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING;
+
+	if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING |
+		    IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) {
+		snprintf(buf, 16, "gpio-irq%d", irq);
+		port_setup(port, d->hwirq, true);
+	} else
+		goto out;
+
+	/* The GPIO interrupt is triggered only when its input value
+	 * transfer from 0 to 1. So, invert the input value if the
+	 * irq type is low or falling
+	 */
+	if ((type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_LEVEL_LOW)))
+		writel(pintmask, &pint_regs->invert_set);
+	else
+		writel(pintmask, &pint_regs->invert_clear);
+
+	/* In edge sensitive case, if the input value of the requested irq
+	 * is already 1, invert it.
+	 */
+	if ((type & IRQ_TYPE_EDGE_BOTH) == IRQ_TYPE_EDGE_BOTH) {
+		if (gpio_get_value(port->chip.base + d->hwirq))
+			writel(pintmask, &pint_regs->invert_set);
+		else
+			writel(pintmask, &pint_regs->invert_clear);
+	}
+
+	if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) {
+		writel(pintmask, &pint_regs->edge_set);
+		__irq_set_handler_locked(irq, handle_edge_irq);
+	} else {
+		writel(pintmask, &pint_regs->edge_clear);
+		__irq_set_handler_locked(irq, handle_level_irq);
+	}
+
+out:
+	spin_unlock_irqrestore(&port->pint->lock, flags);
+	spin_unlock_irqrestore(&port->lock, flags);
+
+	return ret;
+}
+
+#ifdef CONFIG_PM
+static int adi_gpio_set_wake(struct irq_data *d, unsigned int state)
+{
+	struct gpio_port *port = irq_data_get_irq_chip_data(d);
+
+	if (!port || !port->pint || port->pint->irq != d->irq)
+		return -EINVAL;
+
+#ifndef SEC_GCTL
+	adi_internal_set_wake(port->pint->irq, state);
+#endif
+
+	return 0;
+}
+
+static int adi_pint_suspend(void)
+{
+	struct gpio_pint *pint;
+
+	list_for_each_entry(pint, &adi_pint_list, node) {
+		writel(0xffffffff, &pint->regs->mask_clear);
+		pint->saved_data.assign = readl(&pint->regs->assign);
+		pint->saved_data.edge_set = readl(&pint->regs->edge_set);
+		pint->saved_data.invert_set = readl(&pint->regs->invert_set);
+	}
+
+	return 0;
+}
+
+static void adi_pint_resume(void)
+{
+	struct gpio_pint *pint;
+
+	list_for_each_entry(pint, &adi_pint_list, node) {
+		writel(pint->saved_data.assign, &pint->regs->assign);
+		writel(pint->saved_data.edge_set, &pint->regs->edge_set);
+		writel(pint->saved_data.invert_set, &pint->regs->invert_set);
+	}
+}
+
+static int adi_gpio_suspend(void)
+{
+	struct gpio_port *port;
+
+	list_for_each_entry(port, &adi_gpio_port_list, node) {
+		port->saved_data.fer = readw(&port->regs->port_fer);
+		port->saved_data.mux = readl(&port->regs->port_mux);
+		port->saved_data.data = readw(&port->regs->data);
+		port->saved_data.inen = readw(&port->regs->inen);
+		port->saved_data.dir = readw(&port->regs->dir_set);
+	}
+
+	return adi_pint_suspend();
+}
+
+static void adi_gpio_resume(void)
+{
+	struct gpio_port *port;
+
+	adi_pint_resume();
+
+	list_for_each_entry(port, &adi_gpio_port_list, node) {
+		writel(port->saved_data.mux, &port->regs->port_mux);
+		writew(port->saved_data.fer, &port->regs->port_fer);
+		writew(port->saved_data.inen, &port->regs->inen);
+		writew(port->saved_data.data & port->saved_data.dir,
+					&port->regs->data_set);
+		writew(port->saved_data.dir, &port->regs->dir_set);
+	}
+
+}
+
+static struct syscore_ops gpio_pm_syscore_ops = {
+	.suspend = adi_gpio_suspend,
+	.resume = adi_gpio_resume,
+};
+#else /* CONFIG_PM */
+#define adi_gpio_set_wake NULL
+#endif /* CONFIG_PM */
+
+#ifdef CONFIG_IRQ_PREFLOW_FASTEOI
+static inline void preflow_handler(struct irq_desc *desc)
+{
+	if (desc->preflow_handler)
+		desc->preflow_handler(&desc->irq_data);
+}
+#else
+static inline void preflow_handler(struct irq_desc *desc) { }
+#endif
+
+static void adi_gpio_handle_pint_irq(unsigned int inta_irq,
+			struct irq_desc *desc)
+{
+	u32 request;
+	u32 level_mask, hwirq;
+	bool umask = false;
+	struct gpio_pint *pint = irq_desc_get_handler_data(desc);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
+	struct gpio_pint_regs *regs = pint->regs;
+	struct irq_domain *domain;
+
+	preflow_handler(desc);
+	chained_irq_enter(chip, desc);
+
+	request = readl(&regs->request);
+	level_mask = readl(&regs->edge_set) & request;
+
+	hwirq = 0;
+	domain = pint->domain[0];
+	while (request) {
+		/* domain pointer need to be changed only once at IRQ 16 when
+		 * we go through IRQ requests from bit 0 to bit 31.
+		 */
+		if (hwirq == PINT_HI_OFFSET)
+			domain = pint->domain[1];
+
+		if (request & 1) {
+			if (level_mask & BIT(hwirq)) {
+				umask = true;
+				chained_irq_exit(chip, desc);
+			}
+			generic_handle_irq(irq_find_mapping(domain,
+					hwirq % PINT_HI_OFFSET));
+		}
+
+		hwirq++;
+		request >>= 1;
+	}
+
+	if (!umask)
+		chained_irq_exit(chip, desc);
+}
+
+static struct irq_chip adi_gpio_irqchip = {
+	.name = "GPIO",
+	.irq_ack = adi_gpio_ack_irq,
+	.irq_mask = adi_gpio_mask_irq,
+	.irq_mask_ack = adi_gpio_mask_ack_irq,
+	.irq_unmask = adi_gpio_unmask_irq,
+	.irq_disable = adi_gpio_mask_irq,
+	.irq_enable = adi_gpio_unmask_irq,
+	.irq_set_type = adi_gpio_irq_type,
+	.irq_startup = adi_gpio_irq_startup,
+	.irq_shutdown = adi_gpio_irq_shutdown,
+	.irq_set_wake = adi_gpio_set_wake,
+};
+
+static int adi_get_groups_count(struct pinctrl_dev *pctldev)
+{
+	struct adi_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctldev);
+
+	return pinctrl->soc->ngroups;
+}
+
+static const char *adi_get_group_name(struct pinctrl_dev *pctldev,
+				       unsigned selector)
+{
+	struct adi_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctldev);
+
+	return pinctrl->soc->groups[selector].name;
+}
+
+static int adi_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector,
+			       const unsigned **pins,
+			       unsigned *num_pins)
+{
+	struct adi_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctldev);
+
+	*pins = pinctrl->soc->groups[selector].pins;
+	*num_pins = pinctrl->soc->groups[selector].num;
+	return 0;
+}
+
+static struct pinctrl_ops adi_pctrl_ops = {
+	.get_groups_count = adi_get_groups_count,
+	.get_group_name = adi_get_group_name,
+	.get_group_pins = adi_get_group_pins,
+};
+
+static int adi_pinmux_enable(struct pinctrl_dev *pctldev, unsigned selector,
+	unsigned group)
+{
+	struct adi_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctldev);
+	struct gpio_port *port;
+	struct pinctrl_gpio_range *range;
+	unsigned long flags;
+	unsigned short *mux, pin;
+
+	mux = (unsigned short *)pinctrl->soc->functions[selector].mux;
+
+	while (*mux) {
+		pin = P_IDENT(*mux);
+
+		range = pinctrl_find_gpio_range_from_pin(pctldev, pin);
+		if (range == NULL) /* should not happen */
+			return -ENODEV;
+
+		port = container_of(range->gc, struct gpio_port, chip);
+
+		spin_lock_irqsave(&port->lock, flags);
+
+		portmux_setup(port, pin_to_offset(range, pin),
+				 P_FUNCT2MUX(*mux));
+		port_setup(port, pin_to_offset(range, pin), false);
+		mux++;
+
+		spin_unlock_irqrestore(&port->lock, flags);
+	}
+
+	return 0;
+}
+
+static void adi_pinmux_disable(struct pinctrl_dev *pctldev, unsigned selector,
+	unsigned group)
+{
+	struct adi_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctldev);
+	struct gpio_port *port;
+	struct pinctrl_gpio_range *range;
+	unsigned long flags;
+	unsigned short *mux, pin;
+
+	mux = (unsigned short *)pinctrl->soc->functions[selector].mux;
+
+	while (*mux) {
+		pin = P_IDENT(*mux);
+
+		range = pinctrl_find_gpio_range_from_pin(pctldev, pin);
+		if (range == NULL) /* should not happen */
+			return;
+
+		port = container_of(range->gc, struct gpio_port, chip);
+
+		spin_lock_irqsave(&port->lock, flags);
+
+		port_setup(port, pin_to_offset(range, pin), true);
+		mux++;
+
+		spin_unlock_irqrestore(&port->lock, flags);
+	}
+}
+
+static int adi_pinmux_get_funcs_count(struct pinctrl_dev *pctldev)
+{
+	struct adi_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctldev);
+
+	return pinctrl->soc->nfunctions;
+}
+
+static const char *adi_pinmux_get_func_name(struct pinctrl_dev *pctldev,
+					  unsigned selector)
+{
+	struct adi_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctldev);
+
+	return pinctrl->soc->functions[selector].name;
+}
+
+static int adi_pinmux_get_groups(struct pinctrl_dev *pctldev, unsigned selector,
+			       const char * const **groups,
+			       unsigned * const num_groups)
+{
+	struct adi_pinctrl *pinctrl = pinctrl_dev_get_drvdata(pctldev);
+
+	*groups = pinctrl->soc->functions[selector].groups;
+	*num_groups = pinctrl->soc->functions[selector].num_groups;
+	return 0;
+}
+
+static int adi_pinmux_request_gpio(struct pinctrl_dev *pctldev,
+	struct pinctrl_gpio_range *range, unsigned pin)
+{
+	struct gpio_port *port;
+	unsigned long flags;
+	u8 offset;
+
+	port = container_of(range->gc, struct gpio_port, chip);
+	offset = pin_to_offset(range, pin);
+
+	spin_lock_irqsave(&port->lock, flags);
+
+	port_setup(port, offset, true);
+
+	spin_unlock_irqrestore(&port->lock, flags);
+
+	return 0;
+}
+
+static struct pinmux_ops adi_pinmux_ops = {
+	.enable = adi_pinmux_enable,
+	.disable = adi_pinmux_disable,
+	.get_functions_count = adi_pinmux_get_funcs_count,
+	.get_function_name = adi_pinmux_get_func_name,
+	.get_function_groups = adi_pinmux_get_groups,
+	.gpio_request_enable = adi_pinmux_request_gpio,
+};
+
+
+static struct pinctrl_desc adi_pinmux_desc = {
+	.name = DRIVER_NAME,
+	.pctlops = &adi_pctrl_ops,
+	.pmxops = &adi_pinmux_ops,
+	.owner = THIS_MODULE,
+};
+
+static int adi_gpio_request(struct gpio_chip *chip, unsigned offset)
+{
+	return pinctrl_request_gpio(chip->base + offset);
+}
+
+static void adi_gpio_free(struct gpio_chip *chip, unsigned offset)
+{
+	pinctrl_free_gpio(chip->base + offset);
+}
+
+static int adi_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+	struct gpio_port *port;
+	unsigned long flags;
+
+	port = container_of(chip, struct gpio_port, chip);
+
+	spin_lock_irqsave(&port->lock, flags);
+
+	writew(BIT(offset), &port->regs->dir_clear);
+	writew(readw(&port->regs->inen) | BIT(offset), &port->regs->inen);
+
+	spin_unlock_irqrestore(&port->lock, flags);
+
+	return 0;
+}
+
+static void adi_gpio_set_value(struct gpio_chip *chip, unsigned offset,
+	int value)
+{
+	struct gpio_port *port = container_of(chip, struct gpio_port, chip);
+	struct gpio_port_t *regs = port->regs;
+	unsigned long flags;
+
+	spin_lock_irqsave(&port->lock, flags);
+
+	if (value)
+		writew(1 << offset, &regs->data_set);
+	else
+		writew(1 << offset, &regs->data_clear);
+
+	spin_unlock_irqrestore(&port->lock, flags);
+}
+
+static int adi_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
+	int value)
+{
+	struct gpio_port *port = container_of(chip, struct gpio_port, chip);
+	struct gpio_port_t *regs = port->regs;
+	unsigned long flags;
+
+	spin_lock_irqsave(&port->lock, flags);
+
+	writew(readw(&regs->inen) & ~(1 << offset), &regs->inen);
+	adi_gpio_set_value(chip, offset, value);
+	writew(1 << offset, &regs->dir_set);
+
+	spin_unlock_irqrestore(&port->lock, flags);
+
+	return 0;
+}
+
+static int adi_gpio_get_value(struct gpio_chip *chip, unsigned offset)
+{
+	struct gpio_port *port = container_of(chip, struct gpio_port, chip);
+	struct gpio_port_t *regs = port->regs;
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&port->lock, flags);
+
+	ret = !!(readw(&regs->data) & BIT(offset));
+
+	spin_unlock_irqrestore(&port->lock, flags);
+
+	return ret;
+}
+
+static int adi_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+	struct gpio_port *port = container_of(chip, struct gpio_port, chip);
+
+	if (port->irq_base >= 0)
+		return irq_find_mapping(port->domain, offset);
+	else
+		return irq_create_mapping(port->domain, offset);
+}
+
+static int adi_pint_map_port(struct gpio_pint *pint, bool assign, u8 map,
+	struct irq_domain *domain)
+{
+	struct gpio_pint_regs *regs = pint->regs;
+	u32 map_mask;
+
+	if (pint->map_count > 1)
+		return -EINVAL;
+
+	pint->map_count++;
+
+	/* The map_mask of each gpio port is a 16-bit duplicate
+	 * of the 8-bit map. It can be set to either high 16 bits or low
+	 * 16 bits of the pint assignment register.
+	 */
+	map_mask = (map << 8) | map;
+	if (assign) {
+		map_mask <<= PINT_HI_OFFSET;
+		writel((readl(&regs->assign) & 0xFFFF) | map_mask,
+			&regs->assign);
+	} else
+		writel((readl(&regs->assign) & 0xFFFF0000) | map_mask,
+			&regs->assign);
+
+	pint->domain[assign] = domain;
+
+	return 0;
+}
+
+static int adi_gpio_pint_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct resource *res;
+	struct gpio_pint *pint;
+
+	pint = devm_kzalloc(dev, sizeof(struct gpio_pint), GFP_KERNEL);
+	if (!pint) {
+		dev_err(dev, "Memory alloc failed\n");
+		return -ENOMEM;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(dev, "Invalid mem resource\n");
+		return -ENODEV;
+	}
+
+	if (!devm_request_mem_region(dev, res->start, resource_size(res),
+				     pdev->name)) {
+		dev_err(dev, "Region already claimed\n");
+		return -EBUSY;
+	}
+
+	pint->base = devm_ioremap(dev, res->start, resource_size(res));
+	if (!pint->base) {
+		dev_err(dev, "Could not ioremap\n");
+		return -ENOMEM;
+	}
+
+	pint->regs = (struct gpio_pint_regs *)pint->base;
+
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!res) {
+		dev_err(dev, "Invalid IRQ resource\n");
+		return -ENODEV;
+	}
+
+	spin_lock_init(&pint->lock);
+
+	pint->irq = res->start;
+	pint->pint_map_port = adi_pint_map_port;
+	platform_set_drvdata(pdev, pint);
+
+	irq_set_chained_handler(pint->irq, adi_gpio_handle_pint_irq);
+	irq_set_handler_data(pint->irq, pint);
+
+	list_add_tail(&pint->node, &adi_pint_list);
+
+	return 0;
+}
+
+static int adi_gpio_pint_remove(struct platform_device *pdev)
+{
+	struct gpio_pint *pint = platform_get_drvdata(pdev);
+
+	list_del(&pint->node);
+	irq_set_handler(pint->irq, handle_simple_irq);
+
+	return 0;
+}
+
+static int adi_gpio_irq_map(struct irq_domain *d, unsigned int irq,
+				irq_hw_number_t hwirq)
+{
+	struct gpio_port *port = d->host_data;
+
+	if (!port)
+		return -EINVAL;
+
+	irq_set_chip_data(irq, port);
+	irq_set_chip_and_handler(irq, &adi_gpio_irqchip,
+				handle_level_irq);
+
+	return 0;
+}
+
+const struct irq_domain_ops adi_gpio_irq_domain_ops = {
+	.map = adi_gpio_irq_map,
+	.xlate = irq_domain_xlate_onecell,
+};
+
+static int adi_gpio_init_int(struct gpio_port *port)
+{
+	struct device_node *node = port->dev->of_node;
+	struct gpio_pint *pint = port->pint;
+	int ret;
+
+	port->domain = irq_domain_add_linear(node, port->width,
+				&adi_gpio_irq_domain_ops, port);
+	if (!port->domain) {
+		dev_err(port->dev, "Failed to create irqdomain\n");
+		return -ENOSYS;
+	}
+
+	/* According to BF54x and BF60x HRM, pin interrupt devices are not
+	 * part of the GPIO port device. in GPIO interrupt mode, the GPIO
+	 * pins of multiple port devices can be routed into one pin interrupt
+	 * device. The mapping can be configured by setting pint assignment
+	 * register with the mapping value of different GPIO port. This is
+	 * done via function pint_map_port().
+	 */
+	ret = pint->pint_map_port(port->pint, port->pint_assign,
+			port->pint_map,	port->domain);
+	if (ret)
+		return ret;
+
+	if (port->irq_base >= 0) {
+		ret = irq_create_strict_mappings(port->domain, port->irq_base,
+					0, port->width);
+		if (ret) {
+			dev_err(port->dev, "Couldn't associate to domain\n");
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+#define DEVNAME_SIZE 16
+
+static int adi_gpio_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	const struct adi_pinctrl_gpio_platform_data *pdata;
+	struct resource *res;
+	struct gpio_port *port;
+	char pinctrl_devname[DEVNAME_SIZE];
+	static int gpio;
+	int ret = 0, ret1;
+
+	pdata = dev->platform_data;
+	if (!pdata)
+		return -EINVAL;
+
+	port = devm_kzalloc(dev, sizeof(struct gpio_port), GFP_KERNEL);
+	if (!port) {
+		dev_err(dev, "Memory alloc failed\n");
+		return -ENOMEM;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(dev, "Invalid mem resource\n");
+		return -ENODEV;
+	}
+
+	if (!devm_request_mem_region(dev, res->start, resource_size(res),
+				     pdev->name)) {
+		dev_err(dev, "Region already claimed\n");
+		return -EBUSY;
+	}
+
+	port->base = devm_ioremap(dev, res->start, resource_size(res));
+	if (!port->base) {
+		dev_err(dev, "Could not ioremap\n");
+		return -ENOMEM;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!res)
+		port->irq_base = -1;
+	else
+		port->irq_base = res->start;
+
+	port->width = pdata->port_width;
+	port->dev = dev;
+	port->regs = (struct gpio_port_t *)port->base;
+	port->pint_assign = pdata->pint_assign;
+	port->pint_map = pdata->pint_map;
+
+	port->pint = find_gpio_pint(pdata->pint_id);
+	if (port->pint) {
+		ret = adi_gpio_init_int(port);
+		if (ret)
+			return ret;
+	}
+
+	spin_lock_init(&port->lock);
+
+	platform_set_drvdata(pdev, port);
+
+	port->chip.label		= "adi-gpio";
+	port->chip.direction_input	= adi_gpio_direction_input;
+	port->chip.get			= adi_gpio_get_value;
+	port->chip.direction_output	= adi_gpio_direction_output;
+	port->chip.set			= adi_gpio_set_value;
+	port->chip.request		= adi_gpio_request;
+	port->chip.free			= adi_gpio_free;
+	port->chip.to_irq		= adi_gpio_to_irq;
+	if (pdata->port_gpio_base > 0)
+		port->chip.base		= pdata->port_gpio_base;
+	else
+		port->chip.base		= gpio;
+	port->chip.ngpio		= port->width;
+	gpio = port->chip.base + port->width;
+
+	ret = gpiochip_add(&port->chip);
+	if (ret) {
+		dev_err(&pdev->dev, "Fail to add GPIO chip.\n");
+		goto out_remove_domain;
+	}
+
+	/* Add gpio pin range */
+	snprintf(pinctrl_devname, DEVNAME_SIZE, "pinctrl-adi2.%d",
+		pdata->pinctrl_id);
+	pinctrl_devname[DEVNAME_SIZE - 1] = 0;
+	ret = gpiochip_add_pin_range(&port->chip, pinctrl_devname,
+		0, pdata->port_pin_base, port->width);
+	if (ret) {
+		dev_err(&pdev->dev, "Fail to add pin range to %s.\n",
+				pinctrl_devname);
+		goto out_remove_gpiochip;
+	}
+
+	list_add_tail(&port->node, &adi_gpio_port_list);
+
+	return 0;
+
+out_remove_gpiochip:
+	ret1 = gpiochip_remove(&port->chip);
+out_remove_domain:
+	if (port->pint)
+		irq_domain_remove(port->domain);
+
+	return ret;
+}
+
+static int adi_gpio_remove(struct platform_device *pdev)
+{
+	struct gpio_port *port = platform_get_drvdata(pdev);
+	int ret;
+	u8 offset;
+
+	list_del(&port->node);
+	gpiochip_remove_pin_ranges(&port->chip);
+	ret = gpiochip_remove(&port->chip);
+	if (port->pint) {
+		for (offset = 0; offset < port->width; offset++)
+			irq_dispose_mapping(irq_find_mapping(port->domain,
+				offset));
+		irq_domain_remove(port->domain);
+	}
+
+	return ret;
+}
+
+static int adi_pinctrl_probe(struct platform_device *pdev)
+{
+	struct adi_pinctrl *pinctrl;
+
+	pinctrl = devm_kzalloc(&pdev->dev, sizeof(*pinctrl), GFP_KERNEL);
+	if (!pinctrl)
+		return -ENOMEM;
+
+	pinctrl->dev = &pdev->dev;
+
+	adi_pinctrl_soc_init(&pinctrl->soc);
+
+	adi_pinmux_desc.pins = pinctrl->soc->pins;
+	adi_pinmux_desc.npins = pinctrl->soc->npins;
+
+	/* Now register the pin controller and all pins it handles */
+	pinctrl->pctl = pinctrl_register(&adi_pinmux_desc, &pdev->dev, pinctrl);
+	if (!pinctrl->pctl) {
+		dev_err(&pdev->dev, "could not register pinctrl ADI2 driver\n");
+		return -EINVAL;
+	}
+
+	platform_set_drvdata(pdev, pinctrl);
+
+	return 0;
+}
+
+static int adi_pinctrl_remove(struct platform_device *pdev)
+{
+	struct adi_pinctrl *pinctrl = platform_get_drvdata(pdev);
+
+	pinctrl_unregister(pinctrl->pctl);
+
+	return 0;
+}
+
+static struct platform_driver adi_pinctrl_driver = {
+	.probe		= adi_pinctrl_probe,
+	.remove		= adi_pinctrl_remove,
+	.driver		= {
+		.name	= DRIVER_NAME,
+	},
+};
+
+static struct platform_driver adi_gpio_pint_driver = {
+	.probe		= adi_gpio_pint_probe,
+	.remove		= adi_gpio_pint_remove,
+	.driver		= {
+		.name	= "adi-gpio-pint",
+	},
+};
+
+static struct platform_driver adi_gpio_driver = {
+	.probe		= adi_gpio_probe,
+	.remove		= adi_gpio_remove,
+	.driver		= {
+		.name	= "adi-gpio",
+	},
+};
+
+static int __init adi_pinctrl_setup(void)
+{
+	int ret;
+
+	ret = platform_driver_register(&adi_pinctrl_driver);
+	if (ret)
+		return ret;
+
+	ret = platform_driver_register(&adi_gpio_pint_driver);
+	if (ret)
+		goto pint_error;
+
+	ret = platform_driver_register(&adi_gpio_driver);
+	if (ret)
+		goto gpio_error;
+
+#ifdef CONFIG_PM
+	register_syscore_ops(&gpio_pm_syscore_ops);
+#endif
+	return ret;
+gpio_error:
+	platform_driver_unregister(&adi_gpio_pint_driver);
+pint_error:
+	platform_driver_unregister(&adi_pinctrl_driver);
+
+	return ret;
+}
+arch_initcall(adi_pinctrl_setup);
+
+MODULE_AUTHOR("Sonic Zhang <sonic.zhang@analog.com>");
+MODULE_DESCRIPTION("ADI gpio2 pin control driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/pinctrl/pinctrl-adi2.h b/drivers/pinctrl/pinctrl-adi2.h
new file mode 100644
index 000000000000..1f06f8df1fa3
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-adi2.h
@@ -0,0 +1,75 @@
+/*
+ * Pinctrl Driver for ADI GPIO2 controller
+ *
+ * Copyright 2007-2013 Analog Devices Inc.
+ *
+ * Licensed under the GPLv2 or later
+ */
+
+#ifndef PINCTRL_PINCTRL_ADI2_H
+#define PINCTRL_PINCTRL_ADI2_H
+
+#include <linux/pinctrl/pinctrl.h>
+
+ /**
+ * struct adi_pin_group - describes a pin group
+ * @name: the name of this pin group
+ * @pins: an array of pins
+ * @num: the number of pins in this array
+ */
+struct adi_pin_group {
+	const char *name;
+	const unsigned *pins;
+	const unsigned num;
+};
+
+#define ADI_PIN_GROUP(n, p)  \
+	{			\
+		.name = n,	\
+		.pins = p,	\
+		.num = ARRAY_SIZE(p),	\
+	}
+
+ /**
+ * struct adi_pmx_func - describes function mux setting of pin groups
+ * @name: the name of this function mux setting
+ * @groups: an array of pin groups
+ * @num_groups: the number of pin groups in this array
+ * @mux: the function mux setting array, end by zero
+ */
+struct adi_pmx_func {
+	const char *name;
+	const char * const *groups;
+	const unsigned num_groups;
+	const unsigned short *mux;
+};
+
+#define ADI_PMX_FUNCTION(n, g, m)		\
+	{					\
+		.name = n,			\
+		.groups = g,			\
+		.num_groups = ARRAY_SIZE(g),	\
+		.mux = m,			\
+	}
+
+/**
+ * struct adi_pinctrl_soc_data - ADI pin controller per-SoC configuration
+ * @functions:  The functions supported on this SoC.
+ * @nfunction:  The number of entries in @functions.
+ * @groups:     An array describing all pin groups the pin SoC supports.
+ * @ngroups:    The number of entries in @groups.
+ * @pins:       An array describing all pins the pin controller affects.
+ * @npins:      The number of entries in @pins.
+ */
+struct adi_pinctrl_soc_data {
+	const struct adi_pmx_func *functions;
+	int nfunctions;
+	const struct adi_pin_group *groups;
+	int ngroups;
+	const struct pinctrl_pin_desc *pins;
+	int npins;
+};
+
+void adi_pinctrl_soc_init(const struct adi_pinctrl_soc_data **soc);
+
+#endif /* PINCTRL_PINCTRL_ADI2_H */
diff --git a/include/linux/platform_data/pinctrl-adi2.h b/include/linux/platform_data/pinctrl-adi2.h
new file mode 100644
index 000000000000..8f91300617ec
--- /dev/null
+++ b/include/linux/platform_data/pinctrl-adi2.h
@@ -0,0 +1,40 @@
+/*
+ * Pinctrl Driver for ADI GPIO2 controller
+ *
+ * Copyright 2007-2013 Analog Devices Inc.
+ *
+ * Licensed under the GPLv2 or later
+ */
+
+
+#ifndef PINCTRL_ADI2_H
+#define PINCTRL_ADI2_H
+
+#include <linux/io.h>
+#include <linux/platform_device.h>
+
+/**
+ * struct adi_pinctrl_gpio_platform_data - Pinctrl gpio platform data
+ * for ADI GPIO2 device.
+ *
+ * @port_gpio_base: Optional global GPIO index of the GPIO bank.
+ *                 0 means driver decides.
+ * @port_pin_base: Pin index of the pin controller device.
+ * @port_width: PIN number of the GPIO bank device
+ * @pint_id: GPIO PINT device id that this GPIO bank should map to.
+ * @pint_assign: The 32-bit GPIO PINT registers can be divided into 2 parts. A
+ *               GPIO bank can be mapped into either low 16 bits[0] or high 16
+ *               bits[1] of each PINT register.
+ * @pint_map: GIOP bank mapping code in PINT device
+ */
+struct adi_pinctrl_gpio_platform_data {
+	unsigned int port_gpio_base;
+	unsigned int port_pin_base;
+	unsigned int port_width;
+	u8 pinctrl_id;
+	u8 pint_id;
+	bool pint_assign;
+	u8 pint_map;
+};
+
+#endif
-- 
cgit 


From ffb7fc0f6d2d630cb9e6e37e67993aaa342819f1 Mon Sep 17 00:00:00 2001
From: Sonic Zhang <sonic.zhang@analog.com>
Date: Tue, 3 Sep 2013 16:29:00 +0800
Subject: blackfin: gpio: Remove none gpio lib code.

- Remove non gpio lib code from blackfin architecture.
- Limit the lagecy blackfin gpio driver to bf5xx processors only.
- Remove unused definition of the pint power functions.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/blackfin/Kconfig            |   7 ++
 arch/blackfin/include/asm/gpio.h | 157 +++++----------------------------------
 arch/blackfin/kernel/Makefile    |   3 +-
 3 files changed, 29 insertions(+), 138 deletions(-)

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index f78c9a2c7e28..a1199b2e9d2b 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -52,6 +52,9 @@ config GENERIC_BUG
 config ZONE_DMA
 	def_bool y
 
+config GENERIC_GPIO
+	def_bool y
+
 config FORCE_MAX_ZONEORDER
 	int
 	default "14"
@@ -317,6 +320,10 @@ config BF53x
 	depends on (BF531 || BF532 || BF533 || BF534 || BF536 || BF537)
 	default y
 
+config GPIO_ADI
+	def_bool y
+	depends on (BF51x || BF52x || BF53x || BF538 || BF539 || BF561)
+
 config MEM_MT48LC64M4A2FB_7E
 	bool
 	depends on (BFIN533_STAMP)
diff --git a/arch/blackfin/include/asm/gpio.h b/arch/blackfin/include/asm/gpio.h
index 98d0133346b5..99d338ca2ea4 100644
--- a/arch/blackfin/include/asm/gpio.h
+++ b/arch/blackfin/include/asm/gpio.h
@@ -25,8 +25,12 @@
 
 #ifndef __ASSEMBLY__
 
+#ifndef CONFIG_PINCTRL
+
 #include <linux/compiler.h>
-#include <linux/gpio.h>
+#include <asm/blackfin.h>
+#include <asm/portmux.h>
+#include <asm/irq_handler.h>
 
 /***********************************************************
 *
@@ -45,7 +49,6 @@
 * MODIFICATION HISTORY :
 **************************************************************/
 
-#if !BFIN_GPIO_PINT
 void set_gpio_dir(unsigned, unsigned short);
 void set_gpio_inen(unsigned, unsigned short);
 void set_gpio_polar(unsigned, unsigned short);
@@ -115,7 +118,6 @@ struct gpio_port_t {
 	unsigned short dummy16;
 	unsigned short inen;
 };
-#endif
 
 #ifdef BFIN_SPECIAL_GPIO_BANKS
 void bfin_special_gpio_free(unsigned gpio);
@@ -127,25 +129,21 @@ void bfin_special_gpio_pm_hibernate_suspend(void);
 #endif
 
 #ifdef CONFIG_PM
-int bfin_pm_standby_ctrl(unsigned ctrl);
+void bfin_gpio_pm_hibernate_restore(void);
+void bfin_gpio_pm_hibernate_suspend(void);
+int bfin_gpio_pm_wakeup_ctrl(unsigned gpio, unsigned ctrl);
+int bfin_gpio_pm_standby_ctrl(unsigned ctrl);
 
 static inline int bfin_pm_standby_setup(void)
 {
-	return bfin_pm_standby_ctrl(1);
+	return bfin_gpio_pm_standby_ctrl(1);
 }
 
 static inline void bfin_pm_standby_restore(void)
 {
-	bfin_pm_standby_ctrl(0);
+	bfin_gpio_pm_standby_ctrl(0);
 }
 
-void bfin_gpio_pm_hibernate_restore(void);
-void bfin_gpio_pm_hibernate_suspend(void);
-void bfin_pint_suspend(void);
-void bfin_pint_resume(void);
-
-# if !BFIN_GPIO_PINT
-int gpio_pm_wakeup_ctrl(unsigned gpio, unsigned ctrl);
 
 struct gpio_port_s {
 	unsigned short data;
@@ -161,7 +159,6 @@ struct gpio_port_s {
 	unsigned short reserved;
 	unsigned short mux;
 };
-# endif
 #endif /*CONFIG_PM*/
 
 /***********************************************************
@@ -178,36 +175,29 @@ struct gpio_port_s {
 *************************************************************
 * MODIFICATION HISTORY :
 **************************************************************/
-
-int bfin_gpio_request(unsigned gpio, const char *label);
-void bfin_gpio_free(unsigned gpio);
 int bfin_gpio_irq_request(unsigned gpio, const char *label);
 void bfin_gpio_irq_free(unsigned gpio);
-int bfin_gpio_direction_input(unsigned gpio);
-int bfin_gpio_direction_output(unsigned gpio, int value);
-int bfin_gpio_get_value(unsigned gpio);
-void bfin_gpio_set_value(unsigned gpio, int value);
+void bfin_gpio_irq_prepare(unsigned gpio);
+
+static inline int irq_to_gpio(unsigned irq)
+{
+	return irq - GPIO_IRQ_BASE;
+}
+#endif /* CONFIG_PINCTRL */
 
 #include <asm/irq.h>
 #include <asm/errno.h>
 
-#ifdef CONFIG_GPIOLIB
 #include <asm-generic/gpio.h>		/* cansleep wrappers */
 
 static inline int gpio_get_value(unsigned int gpio)
 {
-	if (gpio < MAX_BLACKFIN_GPIOS)
-		return bfin_gpio_get_value(gpio);
-	else
-		return __gpio_get_value(gpio);
+	return __gpio_get_value(gpio);
 }
 
 static inline void gpio_set_value(unsigned int gpio, int value)
 {
-	if (gpio < MAX_BLACKFIN_GPIOS)
-		bfin_gpio_set_value(gpio, value);
-	else
-		__gpio_set_value(gpio, value);
+	__gpio_set_value(gpio, value);
 }
 
 static inline int gpio_cansleep(unsigned int gpio)
@@ -219,113 +209,6 @@ static inline int gpio_to_irq(unsigned gpio)
 {
 	return __gpio_to_irq(gpio);
 }
-
-#else /* !CONFIG_GPIOLIB */
-
-static inline int gpio_request(unsigned gpio, const char *label)
-{
-	return bfin_gpio_request(gpio, label);
-}
-
-static inline void gpio_free(unsigned gpio)
-{
-	return bfin_gpio_free(gpio);
-}
-
-static inline int gpio_direction_input(unsigned gpio)
-{
-	return bfin_gpio_direction_input(gpio);
-}
-
-static inline int gpio_direction_output(unsigned gpio, int value)
-{
-	return bfin_gpio_direction_output(gpio, value);
-}
-
-static inline int gpio_set_debounce(unsigned gpio, unsigned debounce)
-{
-	return -EINVAL;
-}
-
-static inline int gpio_request_one(unsigned gpio, unsigned long flags, const char *label)
-{
-	int err;
-
-	err = bfin_gpio_request(gpio, label);
-	if (err)
-		return err;
-
-	if (flags & GPIOF_DIR_IN)
-		err = bfin_gpio_direction_input(gpio);
-	else
-		err = bfin_gpio_direction_output(gpio,
-			(flags & GPIOF_INIT_HIGH) ? 1 : 0);
-
-	if (err)
-		bfin_gpio_free(gpio);
-
-	return err;
-}
-
-static inline int gpio_request_array(const struct gpio *array, size_t num)
-{
-	int i, err;
-
-	for (i = 0; i < num; i++, array++) {
-		err = gpio_request_one(array->gpio, array->flags, array->label);
-		if (err)
-			goto err_free;
-	}
-	return 0;
-
-err_free:
-	while (i--)
-		bfin_gpio_free((--array)->gpio);
-	return err;
-}
-
-static inline void gpio_free_array(const struct gpio *array, size_t num)
-{
-	while (num--)
-		bfin_gpio_free((array++)->gpio);
-}
-
-static inline int __gpio_get_value(unsigned gpio)
-{
-	return bfin_gpio_get_value(gpio);
-}
-
-static inline void __gpio_set_value(unsigned gpio, int value)
-{
-	return bfin_gpio_set_value(gpio, value);
-}
-
-static inline int gpio_get_value(unsigned gpio)
-{
-	return __gpio_get_value(gpio);
-}
-
-static inline void gpio_set_value(unsigned gpio, int value)
-{
-	return __gpio_set_value(gpio, value);
-}
-
-static inline int gpio_to_irq(unsigned gpio)
-{
-	if (likely(gpio < MAX_BLACKFIN_GPIOS))
-		return gpio + GPIO_IRQ_BASE;
-
-	return -EINVAL;
-}
-
-#include <asm-generic/gpio.h>		/* cansleep wrappers */
-#endif	/* !CONFIG_GPIOLIB */
-
-static inline int irq_to_gpio(unsigned irq)
-{
-	return (irq - GPIO_IRQ_BASE);
-}
-
 #endif /* __ASSEMBLY__ */
 
 #endif /* __ARCH_BLACKFIN_GPIO_H__ */
diff --git a/arch/blackfin/kernel/Makefile b/arch/blackfin/kernel/Makefile
index 735f24e07425..703dc7cf2ecc 100644
--- a/arch/blackfin/kernel/Makefile
+++ b/arch/blackfin/kernel/Makefile
@@ -7,7 +7,7 @@ extra-y := vmlinux.lds
 obj-y := \
 	entry.o process.o bfin_ksyms.o ptrace.o setup.o signal.o \
 	sys_bfin.o traps.o irqchip.o dma-mapping.o flat.o \
-	fixed_code.o reboot.o bfin_gpio.o bfin_dma.o \
+	fixed_code.o reboot.o bfin_dma.o \
 	exception.o dumpstack.o
 
 ifeq ($(CONFIG_GENERIC_CLOCKEVENTS),y)
@@ -16,6 +16,7 @@ else
     obj-y += time.o
 endif
 
+obj-$(CONFIG_GPIO_ADI)               += bfin_gpio.o
 obj-$(CONFIG_DYNAMIC_FTRACE)         += ftrace.o
 obj-$(CONFIG_FUNCTION_TRACER)        += ftrace-entry.o
 obj-$(CONFIG_FUNCTION_GRAPH_TRACER)  += ftrace.o
-- 
cgit 


From 6424de5af1942e33ce0267cbfe9ff12e387d93d6 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 9 Sep 2013 10:33:49 +0100
Subject: gpiolib: Provide helper macros for logging of GPIO events

Currently many but not all GPIO log messages log the GPIO number and the
formats vary. Ensure that this is done consistently by defining logging
helpers which take the GPIO descriptor.

The will help people pattern matching on logs and providing the number
makes the log messages that omitted it more useful.

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpiolib.c | 52 +++++++++++++++++++++++++++++++-------------------
 1 file changed, 32 insertions(+), 20 deletions(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 86ef3461ec06..417ee75d82d3 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -102,6 +102,18 @@ static int gpiod_export_link(struct device *dev, const char *name,
 static int gpiod_sysfs_set_active_low(struct gpio_desc *desc, int value);
 static void gpiod_unexport(struct gpio_desc *desc);
 
+#define gpiod_emerg(desc, fmt, ...)			           \
+	pr_emerg("gpio-%d: " fmt, desc_to_gpio(desc), ##__VA_ARGS__)
+#define gpiod_crit(desc, fmt, ...)			           \
+	pr_crit("gpio-%d: " fmt, desc_to_gpio(desc), ##__VA_ARGS__)
+#define gpiod_err(desc, fmt, ...)				   \
+	pr_err("gpio-%d: " fmt, desc_to_gpio(desc), ##__VA_ARGS__)
+#define gpiod_warn(desc, fmt, ...)				   \
+	pr_warn("gpio-%d: " fmt, desc_to_gpio(desc), ##__VA_ARGS__)
+#define gpiod_info(desc, fmt, ...)				   \
+	pr_info("gpio-%d: " fmt, desc_to_gpio(desc), ##__VA_ARGS__)
+#define gpiod_dbg(desc, fmt, ...)				   \
+	pr_debug("gpio-%d: " fmt, desc_to_gpio(desc), ##__VA_ARGS__)
 
 static inline void desc_set_label(struct gpio_desc *d, const char *label)
 {
@@ -1635,8 +1647,9 @@ static int gpiod_direction_input(struct gpio_desc *desc)
 
 	chip = desc->chip;
 	if (!chip->get || !chip->direction_input) {
-		pr_warn("%s: missing get() or direction_input() operations\n",
-			__func__);
+		gpiod_warn(desc,
+			"%s: missing get() or direction_input() operations\n",
+			 __func__);
 		return -EIO;
 	}
 
@@ -1656,8 +1669,7 @@ static int gpiod_direction_input(struct gpio_desc *desc)
 	if (status) {
 		status = chip->request(chip, offset);
 		if (status < 0) {
-			pr_debug("GPIO-%d: chip request fail, %d\n",
-				desc_to_gpio(desc), status);
+			gpiod_dbg(desc, "chip request fail, %d\n", status);
 			/* and it's not available to anyone else ...
 			 * gpio_request() is the fully clean solution.
 			 */
@@ -1675,8 +1687,7 @@ lose:
 fail:
 	spin_unlock_irqrestore(&gpio_lock, flags);
 	if (status)
-		pr_debug("%s: gpio-%d status %d\n", __func__,
-			 desc_to_gpio(desc), status);
+		gpiod_dbg(desc, "%s status %d\n", __func__, status);
 	return status;
 }
 
@@ -1708,8 +1719,9 @@ static int gpiod_direction_output(struct gpio_desc *desc, int value)
 
 	chip = desc->chip;
 	if (!chip->set || !chip->direction_output) {
-		pr_warn("%s: missing set() or direction_output() operations\n",
-			__func__);
+		gpiod_warn(desc,
+		       "%s: missing set() or direction_output() operations\n",
+		       __func__);
 		return -EIO;
 	}
 
@@ -1729,8 +1741,7 @@ static int gpiod_direction_output(struct gpio_desc *desc, int value)
 	if (status) {
 		status = chip->request(chip, offset);
 		if (status < 0) {
-			pr_debug("GPIO-%d: chip request fail, %d\n",
-				desc_to_gpio(desc), status);
+			gpiod_dbg(desc, "chip request fail, %d\n", status);
 			/* and it's not available to anyone else ...
 			 * gpio_request() is the fully clean solution.
 			 */
@@ -1748,8 +1759,7 @@ lose:
 fail:
 	spin_unlock_irqrestore(&gpio_lock, flags);
 	if (status)
-		pr_debug("%s: gpio-%d status %d\n", __func__,
-			 desc_to_gpio(desc), status);
+		gpiod_dbg(desc, "%s: gpio status %d\n", __func__, status);
 	return status;
 }
 
@@ -1781,8 +1791,9 @@ static int gpiod_set_debounce(struct gpio_desc *desc, unsigned debounce)
 
 	chip = desc->chip;
 	if (!chip->set || !chip->set_debounce) {
-		pr_debug("%s: missing set() or set_debounce() operations\n",
-			__func__);
+		gpiod_dbg(desc,
+			  "%s: missing set() or set_debounce() operations\n",
+			  __func__);
 		return -ENOTSUPP;
 	}
 
@@ -1804,8 +1815,7 @@ static int gpiod_set_debounce(struct gpio_desc *desc, unsigned debounce)
 fail:
 	spin_unlock_irqrestore(&gpio_lock, flags);
 	if (status)
-		pr_debug("%s: gpio-%d status %d\n", __func__,
-			 desc_to_gpio(desc), status);
+		gpiod_dbg(desc, "%s: status %d\n", __func__, status);
 
 	return status;
 }
@@ -1893,8 +1903,9 @@ static void _gpio_set_open_drain_value(struct gpio_desc *desc, int value)
 	}
 	trace_gpio_direction(desc_to_gpio(desc), value, err);
 	if (err < 0)
-		pr_err("%s: Error in set_value for open drain gpio%d err %d\n",
-					__func__, desc_to_gpio(desc), err);
+		gpiod_err(desc,
+			  "%s: Error in set_value for open drain err %d\n",
+			  __func__, err);
 }
 
 /*
@@ -1920,8 +1931,9 @@ static void _gpio_set_open_source_value(struct gpio_desc *desc, int value)
 	}
 	trace_gpio_direction(desc_to_gpio(desc), !value, err);
 	if (err < 0)
-		pr_err("%s: Error in set_value for open source gpio%d err %d\n",
-					__func__, desc_to_gpio(desc), err);
+		gpiod_err(desc,
+			  "%s: Error in set_value for open source err %d\n",
+			  __func__, err);
 }
 
 /**
-- 
cgit 


From 7b17b59feaa8b0a54a333005b87ad7ea804d021f Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 9 Sep 2013 10:33:50 +0100
Subject: gpiolib: Include GPIO label in log messages for GPIOs

Provide the human readable label for the GPIO as well as the number when
we are recording it in order to improve the readability of log messages.

Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpiolib.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 417ee75d82d3..8048c3dbb8ad 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -102,6 +102,26 @@ static int gpiod_export_link(struct device *dev, const char *name,
 static int gpiod_sysfs_set_active_low(struct gpio_desc *desc, int value);
 static void gpiod_unexport(struct gpio_desc *desc);
 
+#ifdef CONFIG_DEBUG_FS
+#define gpiod_emerg(desc, fmt, ...)			                \
+	pr_emerg("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label, \
+                 ##__VA_ARGS__)
+#define gpiod_crit(desc, fmt, ...)			                \
+	pr_crit("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label,  \
+                 ##__VA_ARGS__)
+#define gpiod_err(desc, fmt, ...)				        \
+	pr_err("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label,   \
+                 ##__VA_ARGS__)
+#define gpiod_warn(desc, fmt, ...)				        \
+	pr_warn("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label,  \
+                 ##__VA_ARGS__)
+#define gpiod_info(desc, fmt, ...)				        \
+	pr_info("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label,  \
+                ##__VA_ARGS__)
+#define gpiod_dbg(desc, fmt, ...)				   \
+	pr_debug("gpio-%d (%s): " fmt, desc_to_gpio(desc), desc->label, \
+                 ##__VA_ARGS__)
+#else
 #define gpiod_emerg(desc, fmt, ...)			           \
 	pr_emerg("gpio-%d: " fmt, desc_to_gpio(desc), ##__VA_ARGS__)
 #define gpiod_crit(desc, fmt, ...)			           \
@@ -114,6 +134,7 @@ static void gpiod_unexport(struct gpio_desc *desc);
 	pr_info("gpio-%d: " fmt, desc_to_gpio(desc), ##__VA_ARGS__)
 #define gpiod_dbg(desc, fmt, ...)				   \
 	pr_debug("gpio-%d: " fmt, desc_to_gpio(desc), ##__VA_ARGS__)
+#endif
 
 static inline void desc_set_label(struct gpio_desc *d, const char *label)
 {
-- 
cgit 


From ca6af7b96ab621371f5f408e3fe7bd1e5cb063aa Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Tue, 3 Sep 2013 19:58:03 +0530
Subject: gpio: palmas: add support for TPS80036

TI Palmas series device TPS80036 supports 16 GPIOs.
Register its all 16 gpios when this device is selected.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-palmas.c | 104 ++++++++++++++++++++++++++++++---------------
 1 file changed, 69 insertions(+), 35 deletions(-)

diff --git a/drivers/gpio/gpio-palmas.c b/drivers/gpio/gpio-palmas.c
index 8588af0f7661..11801e986dd9 100644
--- a/drivers/gpio/gpio-palmas.c
+++ b/drivers/gpio/gpio-palmas.c
@@ -31,6 +31,10 @@ struct palmas_gpio {
 	struct palmas *palmas;
 };
 
+struct palmas_device_data {
+	int ngpio;
+};
+
 static inline struct palmas_gpio *to_palmas_gpio(struct gpio_chip *chip)
 {
 	return container_of(chip, struct palmas_gpio, gpio_chip);
@@ -42,23 +46,26 @@ static int palmas_gpio_get(struct gpio_chip *gc, unsigned offset)
 	struct palmas *palmas = pg->palmas;
 	unsigned int val;
 	int ret;
+	unsigned int reg;
+	int gpio16 = (offset/8);
+
+	offset %= 8;
+	reg = (gpio16) ? PALMAS_GPIO_DATA_DIR2 : PALMAS_GPIO_DATA_DIR;
 
-	ret = palmas_read(palmas, PALMAS_GPIO_BASE, PALMAS_GPIO_DATA_DIR, &val);
+	ret = palmas_read(palmas, PALMAS_GPIO_BASE, reg, &val);
 	if (ret < 0) {
-		dev_err(gc->dev, "GPIO_DATA_DIR read failed, err = %d\n", ret);
+		dev_err(gc->dev, "Reg 0x%02x read failed, %d\n", reg, ret);
 		return ret;
 	}
 
-	if (val & (1 << offset)) {
-		ret = palmas_read(palmas, PALMAS_GPIO_BASE,
-				  PALMAS_GPIO_DATA_OUT, &val);
-	} else {
-		ret = palmas_read(palmas, PALMAS_GPIO_BASE,
-				  PALMAS_GPIO_DATA_IN, &val);
-	}
+	if (val & BIT(offset))
+		reg = (gpio16) ? PALMAS_GPIO_DATA_OUT2 : PALMAS_GPIO_DATA_OUT;
+	else
+		reg = (gpio16) ? PALMAS_GPIO_DATA_IN2 : PALMAS_GPIO_DATA_IN;
+
+	ret = palmas_read(palmas, PALMAS_GPIO_BASE, reg, &val);
 	if (ret < 0) {
-		dev_err(gc->dev, "GPIO_DATA_IN/OUT read failed, err = %d\n",
-			ret);
+		dev_err(gc->dev, "Reg 0x%02x read failed, %d\n", reg, ret);
 		return ret;
 	}
 	return !!(val & BIT(offset));
@@ -70,17 +77,20 @@ static void palmas_gpio_set(struct gpio_chip *gc, unsigned offset,
 	struct palmas_gpio *pg = to_palmas_gpio(gc);
 	struct palmas *palmas = pg->palmas;
 	int ret;
+	unsigned int reg;
+	int gpio16 = (offset/8);
 
-	if (value)
-		ret = palmas_write(palmas, PALMAS_GPIO_BASE,
-				PALMAS_GPIO_SET_DATA_OUT, BIT(offset));
+	offset %= 8;
+	if (gpio16)
+		reg = (value) ?
+			PALMAS_GPIO_SET_DATA_OUT2 : PALMAS_GPIO_CLEAR_DATA_OUT2;
 	else
-		ret = palmas_write(palmas, PALMAS_GPIO_BASE,
-				PALMAS_GPIO_CLEAR_DATA_OUT, BIT(offset));
+		reg = (value) ?
+			PALMAS_GPIO_SET_DATA_OUT : PALMAS_GPIO_CLEAR_DATA_OUT;
+
+	ret = palmas_write(palmas, PALMAS_GPIO_BASE, reg, BIT(offset));
 	if (ret < 0)
-		dev_err(gc->dev, "%s write failed, err = %d\n",
-			(value) ? "GPIO_SET_DATA_OUT" : "GPIO_CLEAR_DATA_OUT",
-			ret);
+		dev_err(gc->dev, "Reg 0x%02x write failed, %d\n", reg, ret);
 }
 
 static int palmas_gpio_output(struct gpio_chip *gc, unsigned offset,
@@ -89,14 +99,19 @@ static int palmas_gpio_output(struct gpio_chip *gc, unsigned offset,
 	struct palmas_gpio *pg = to_palmas_gpio(gc);
 	struct palmas *palmas = pg->palmas;
 	int ret;
+	unsigned int reg;
+	int gpio16 = (offset/8);
+
+	offset %= 8;
+	reg = (gpio16) ? PALMAS_GPIO_DATA_DIR2 : PALMAS_GPIO_DATA_DIR;
 
 	/* Set the initial value */
 	palmas_gpio_set(gc, offset, value);
 
-	ret = palmas_update_bits(palmas, PALMAS_GPIO_BASE,
-		PALMAS_GPIO_DATA_DIR, BIT(offset), BIT(offset));
+	ret = palmas_update_bits(palmas, PALMAS_GPIO_BASE, reg,
+				BIT(offset), BIT(offset));
 	if (ret < 0)
-		dev_err(gc->dev, "GPIO_DATA_DIR write failed, err = %d\n", ret);
+		dev_err(gc->dev, "Reg 0x%02x update failed, %d\n", reg, ret);
 	return ret;
 }
 
@@ -105,11 +120,15 @@ static int palmas_gpio_input(struct gpio_chip *gc, unsigned offset)
 	struct palmas_gpio *pg = to_palmas_gpio(gc);
 	struct palmas *palmas = pg->palmas;
 	int ret;
+	unsigned int reg;
+	int gpio16 = (offset/8);
+
+	offset %= 8;
+	reg = (gpio16) ? PALMAS_GPIO_DATA_DIR2 : PALMAS_GPIO_DATA_DIR;
 
-	ret = palmas_update_bits(palmas, PALMAS_GPIO_BASE,
-		PALMAS_GPIO_DATA_DIR, BIT(offset), 0);
+	ret = palmas_update_bits(palmas, PALMAS_GPIO_BASE, reg, BIT(offset), 0);
 	if (ret < 0)
-		dev_err(gc->dev, "GPIO_DATA_DIR write failed, err = %d\n", ret);
+		dev_err(gc->dev, "Reg 0x%02x update failed, %d\n", reg, ret);
 	return ret;
 }
 
@@ -121,12 +140,36 @@ static int palmas_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
 	return palmas_irq_get_virq(palmas, PALMAS_GPIO_0_IRQ + offset);
 }
 
+static const struct palmas_device_data palmas_dev_data = {
+	.ngpio = 8,
+};
+
+static const struct palmas_device_data tps80036_dev_data = {
+	.ngpio = 16,
+};
+
+static struct of_device_id of_palmas_gpio_match[] = {
+	{ .compatible = "ti,palmas-gpio", .data = &palmas_dev_data,},
+	{ .compatible = "ti,tps65913-gpio", .data = &palmas_dev_data,},
+	{ .compatible = "ti,tps65914-gpio", .data = &palmas_dev_data,},
+	{ .compatible = "ti,tps80036-gpio", .data = &tps80036_dev_data,},
+	{ },
+};
+MODULE_DEVICE_TABLE(of, of_palmas_gpio_match);
+
 static int palmas_gpio_probe(struct platform_device *pdev)
 {
 	struct palmas *palmas = dev_get_drvdata(pdev->dev.parent);
 	struct palmas_platform_data *palmas_pdata;
 	struct palmas_gpio *palmas_gpio;
 	int ret;
+	const struct of_device_id *match;
+	const struct palmas_device_data *dev_data;
+
+	match = of_match_device(of_palmas_gpio_match, &pdev->dev);
+	dev_data = match->data;
+	if (!dev_data)
+		dev_data = &palmas_dev_data;
 
 	palmas_gpio = devm_kzalloc(&pdev->dev,
 				sizeof(*palmas_gpio), GFP_KERNEL);
@@ -138,7 +181,7 @@ static int palmas_gpio_probe(struct platform_device *pdev)
 	palmas_gpio->palmas = palmas;
 	palmas_gpio->gpio_chip.owner = THIS_MODULE;
 	palmas_gpio->gpio_chip.label = dev_name(&pdev->dev);
-	palmas_gpio->gpio_chip.ngpio = 8;
+	palmas_gpio->gpio_chip.ngpio = dev_data->ngpio;
 	palmas_gpio->gpio_chip.can_sleep = 1;
 	palmas_gpio->gpio_chip.direction_input = palmas_gpio_input;
 	palmas_gpio->gpio_chip.direction_output = palmas_gpio_output;
@@ -172,15 +215,6 @@ static int palmas_gpio_remove(struct platform_device *pdev)
 	return gpiochip_remove(&palmas_gpio->gpio_chip);
 }
 
-static struct of_device_id of_palmas_gpio_match[] = {
-	{ .compatible = "ti,palmas-gpio"},
-	{ .compatible = "ti,tps65913-gpio"},
-	{ .compatible = "ti,tps65914-gpio"},
-	{ .compatible = "ti,tps80036-gpio"},
-	{ },
-};
-MODULE_DEVICE_TABLE(of, of_palmas_gpio_match);
-
 static struct platform_driver palmas_gpio_driver = {
 	.driver.name	= "palmas-gpio",
 	.driver.owner	= THIS_MODULE,
-- 
cgit 


From b59278548e2383976f7db5fd3389f9116a6f240d Mon Sep 17 00:00:00 2001
From: Ian Molton <ian.molton@codethink.co.uk>
Date: Mon, 2 Sep 2013 16:44:55 +0100
Subject: emev2: GPIOLIB: Enable support for OF

EMEV2 is now a DT platform, however the GPIO driver cannot be used
from a DT file since it does not fill out the of_node field in its
gpio_chip structure.

Signed-off-by: Ian Molton <ian.molton@codethink.co.uk>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/Kconfig   | 2 +-
 drivers/gpio/gpio-em.c | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index b6ed304863eb..a6d67c5d0c20 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -129,7 +129,7 @@ config GPIO_IT8761E
 
 config GPIO_EM
 	tristate "Emma Mobile GPIO"
-	depends on ARM
+	depends on ARM && OF_GPIO
 	help
 	  Say yes here to support GPIO on Renesas Emma Mobile SoCs.
 
diff --git a/drivers/gpio/gpio-em.c b/drivers/gpio/gpio-em.c
index c6e1f086efe8..160d759170a5 100644
--- a/drivers/gpio/gpio-em.c
+++ b/drivers/gpio/gpio-em.c
@@ -319,6 +319,7 @@ static int em_gio_probe(struct platform_device *pdev)
 	}
 
 	gpio_chip = &p->gpio_chip;
+	gpio_chip->of_node = pdev->dev.of_node;
 	gpio_chip->direction_input = em_gio_direction_input;
 	gpio_chip->get = em_gio_get;
 	gpio_chip->direction_output = em_gio_direction_output;
-- 
cgit 


From 01984a47e21a7d36cea0d6c0933c8173391721fc Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 17 Sep 2013 09:42:46 +0530
Subject: ASoC: imx-sgtl5000: Use devm_snd_soc_register_card

devm_snd_soc_register_card makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/imx-sgtl5000.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/sound/soc/fsl/imx-sgtl5000.c b/sound/soc/fsl/imx-sgtl5000.c
index 46c5b4fdfc52..78f86d870b11 100644
--- a/sound/soc/fsl/imx-sgtl5000.c
+++ b/sound/soc/fsl/imx-sgtl5000.c
@@ -159,7 +159,7 @@ static int imx_sgtl5000_probe(struct platform_device *pdev)
 	data->card.dapm_widgets = imx_sgtl5000_dapm_widgets;
 	data->card.num_dapm_widgets = ARRAY_SIZE(imx_sgtl5000_dapm_widgets);
 
-	ret = snd_soc_register_card(&data->card);
+	ret = devm_snd_soc_register_card(&pdev->dev, &data->card);
 	if (ret) {
 		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
 		goto fail;
@@ -180,15 +180,6 @@ fail:
 	return ret;
 }
 
-static int imx_sgtl5000_remove(struct platform_device *pdev)
-{
-	struct imx_sgtl5000_data *data = platform_get_drvdata(pdev);
-
-	snd_soc_unregister_card(&data->card);
-
-	return 0;
-}
-
 static const struct of_device_id imx_sgtl5000_dt_ids[] = {
 	{ .compatible = "fsl,imx-audio-sgtl5000", },
 	{ /* sentinel */ }
@@ -202,7 +193,6 @@ static struct platform_driver imx_sgtl5000_driver = {
 		.of_match_table = imx_sgtl5000_dt_ids,
 	},
 	.probe = imx_sgtl5000_probe,
-	.remove = imx_sgtl5000_remove,
 };
 module_platform_driver(imx_sgtl5000_driver);
 
-- 
cgit 


From ff27d9b3d6dd26013537e4f8162627169ca92af4 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 17 Sep 2013 09:42:47 +0530
Subject: ASoC: imx-spdif: Use devm_snd_soc_register_card

devm_snd_soc_register_card makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/imx-spdif.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/sound/soc/fsl/imx-spdif.c b/sound/soc/fsl/imx-spdif.c
index 816013b0ebba..8499d5292f08 100644
--- a/sound/soc/fsl/imx-spdif.c
+++ b/sound/soc/fsl/imx-spdif.c
@@ -87,7 +87,7 @@ static int imx_spdif_audio_probe(struct platform_device *pdev)
 	if (ret)
 		goto error_dir;
 
-	ret = snd_soc_register_card(&data->card);
+	ret = devm_snd_soc_register_card(&pdev->dev, &data->card);
 	if (ret) {
 		dev_err(&pdev->dev, "snd_soc_register_card failed: %d\n", ret);
 		goto error_dir;
@@ -119,8 +119,6 @@ static int imx_spdif_audio_remove(struct platform_device *pdev)
 	if (data->txdev)
 		platform_device_unregister(data->txdev);
 
-	snd_soc_unregister_card(&data->card);
-
 	return 0;
 }
 
-- 
cgit 


From eafbae2919e24b6ed7078464b2c8b2313ac0252c Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 17 Sep 2013 09:42:48 +0530
Subject: ASoC: imx-wm8962: Use devm_snd_soc_register_card

devm_snd_soc_register_card makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/imx-wm8962.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/soc/fsl/imx-wm8962.c b/sound/soc/fsl/imx-wm8962.c
index 722afe69169e..6c6066618f3b 100644
--- a/sound/soc/fsl/imx-wm8962.c
+++ b/sound/soc/fsl/imx-wm8962.c
@@ -266,7 +266,7 @@ static int imx_wm8962_probe(struct platform_device *pdev)
 	data->card.late_probe = imx_wm8962_late_probe;
 	data->card.set_bias_level = imx_wm8962_set_bias_level;
 
-	ret = snd_soc_register_card(&data->card);
+	ret = devm_snd_soc_register_card(&pdev->dev, &data->card);
 	if (ret) {
 		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
 		goto clk_fail;
@@ -296,7 +296,6 @@ static int imx_wm8962_remove(struct platform_device *pdev)
 
 	if (!IS_ERR(data->codec_clk))
 		clk_disable_unprepare(data->codec_clk);
-	snd_soc_unregister_card(&data->card);
 
 	return 0;
 }
-- 
cgit 


From 33c89c30afd7b6a309638d8d9b88481118d0a3ec Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 17 Sep 2013 09:49:04 +0530
Subject: ASoC: mfld: Use devm_snd_soc_register_card

devm_snd_soc_register_card makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/mid-x86/mfld_machine.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/sound/soc/mid-x86/mfld_machine.c b/sound/soc/mid-x86/mfld_machine.c
index ee363845759e..d3d4c32434f7 100644
--- a/sound/soc/mid-x86/mfld_machine.c
+++ b/sound/soc/mid-x86/mfld_machine.c
@@ -400,7 +400,7 @@ static int snd_mfld_mc_probe(struct platform_device *pdev)
 	}
 	/* register the soc card */
 	snd_soc_card_mfld.dev = &pdev->dev;
-	ret_val = snd_soc_register_card(&snd_soc_card_mfld);
+	ret_val = devm_snd_soc_register_card(&pdev->dev, &snd_soc_card_mfld);
 	if (ret_val) {
 		pr_debug("snd_soc_register_card failed %d\n", ret_val);
 		return ret_val;
@@ -410,20 +410,12 @@ static int snd_mfld_mc_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int snd_mfld_mc_remove(struct platform_device *pdev)
-{
-	pr_debug("snd_mfld_mc_remove called\n");
-	snd_soc_unregister_card(&snd_soc_card_mfld);
-	return 0;
-}
-
 static struct platform_driver snd_mfld_mc_driver = {
 	.driver = {
 		.owner = THIS_MODULE,
 		.name = "msic_audio",
 	},
 	.probe = snd_mfld_mc_probe,
-	.remove = snd_mfld_mc_remove,
 };
 
 module_platform_driver(snd_mfld_mc_driver);
-- 
cgit 


From 67a48b8181b0c981c59acf06f056e00184d3debd Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 17 Sep 2013 09:53:59 +0530
Subject: ASoC: omap-twl4030: Use devm_snd_soc_register_card

devm_snd_soc_register_card makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/omap/omap-twl4030.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/sound/soc/omap/omap-twl4030.c b/sound/soc/omap/omap-twl4030.c
index 2a9324f794d8..6a8d6b5f160d 100644
--- a/sound/soc/omap/omap-twl4030.c
+++ b/sound/soc/omap/omap-twl4030.c
@@ -338,9 +338,9 @@ static int omap_twl4030_probe(struct platform_device *pdev)
 	}
 
 	snd_soc_card_set_drvdata(card, priv);
-	ret = snd_soc_register_card(card);
+	ret = devm_snd_soc_register_card(&pdev->dev, card);
 	if (ret) {
-		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
+		dev_err(&pdev->dev, "devm_snd_soc_register_card() failed: %d\n",
 			ret);
 		return ret;
 	}
@@ -357,7 +357,6 @@ static int omap_twl4030_remove(struct platform_device *pdev)
 		snd_soc_jack_free_gpios(&priv->hs_jack,
 					ARRAY_SIZE(hs_jack_gpios),
 					hs_jack_gpios);
-	snd_soc_unregister_card(card);
 
 	return 0;
 }
-- 
cgit 


From 256218ae65d2e59ef5d257355791a62af7d31b3c Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 17 Sep 2013 10:13:49 +0530
Subject: ASoC: fsl_spdif: Use devm_snd_soc_register_component

devm_snd_soc_register_component makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/fsl_spdif.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index 3920c3e849ce..44378e6e2696 100644
--- a/sound/soc/fsl/fsl_spdif.c
+++ b/sound/soc/fsl/fsl_spdif.c
@@ -1172,23 +1172,16 @@ static int fsl_spdif_probe(struct platform_device *pdev)
 	/* Register with ASoC */
 	dev_set_drvdata(&pdev->dev, spdif_priv);
 
-	ret = snd_soc_register_component(&pdev->dev, &fsl_spdif_component,
-					 &spdif_priv->cpu_dai_drv, 1);
+	ret = devm_snd_soc_register_component(&pdev->dev, &fsl_spdif_component,
+					      &spdif_priv->cpu_dai_drv, 1);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register DAI: %d\n", ret);
 		return ret;
 	}
 
 	ret = imx_pcm_dma_init(pdev);
-	if (ret) {
+	if (ret)
 		dev_err(&pdev->dev, "imx_pcm_dma_init failed: %d\n", ret);
-		goto error_component;
-	}
-
-	return ret;
-
-error_component:
-	snd_soc_unregister_component(&pdev->dev);
 
 	return ret;
 }
@@ -1196,7 +1189,6 @@ error_component:
 static int fsl_spdif_remove(struct platform_device *pdev)
 {
 	imx_pcm_dma_exit(pdev);
-	snd_soc_unregister_component(&pdev->dev);
 
 	return 0;
 }
-- 
cgit 


From fcd70eb50e2d572a67839410aa30f6b545355980 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 17 Sep 2013 10:20:09 +0530
Subject: ASoC: mxs-saif: Use devm_snd_soc_register_component

devm_snd_soc_register_component makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/mxs/mxs-saif.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index b56b8a0e8deb..14152f6f70dd 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -768,8 +768,8 @@ static int mxs_saif_probe(struct platform_device *pdev)
 			dev_warn(&pdev->dev, "failed to init clocks\n");
 	}
 
-	ret = snd_soc_register_component(&pdev->dev, &mxs_saif_component,
-					 &mxs_saif_dai, 1);
+	ret = devm_snd_soc_register_component(&pdev->dev, &mxs_saif_component,
+					      &mxs_saif_dai, 1);
 	if (ret) {
 		dev_err(&pdev->dev, "register DAI failed\n");
 		return ret;
@@ -778,21 +778,15 @@ static int mxs_saif_probe(struct platform_device *pdev)
 	ret = mxs_pcm_platform_register(&pdev->dev);
 	if (ret) {
 		dev_err(&pdev->dev, "register PCM failed: %d\n", ret);
-		goto failed_pdev_alloc;
+		return ret;
 	}
 
 	return 0;
-
-failed_pdev_alloc:
-	snd_soc_unregister_component(&pdev->dev);
-
-	return ret;
 }
 
 static int mxs_saif_remove(struct platform_device *pdev)
 {
 	mxs_pcm_platform_unregister(&pdev->dev);
-	snd_soc_unregister_component(&pdev->dev);
 
 	return 0;
 }
-- 
cgit 


From 6c3cc302a48acdd3797d694ae4a2be82bb71a05a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 17 Sep 2013 10:28:02 +0530
Subject: ASoC: omap-mcpdm: Use devm_snd_soc_register_component

devm_snd_soc_register_component makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/omap/omap-mcpdm.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/sound/soc/omap/omap-mcpdm.c b/sound/soc/omap/omap-mcpdm.c
index 90d2a7cd2563..cd9ee167959d 100644
--- a/sound/soc/omap/omap-mcpdm.c
+++ b/sound/soc/omap/omap-mcpdm.c
@@ -490,14 +490,9 @@ static int asoc_mcpdm_probe(struct platform_device *pdev)
 
 	mcpdm->dev = &pdev->dev;
 
-	return snd_soc_register_component(&pdev->dev, &omap_mcpdm_component,
-					  &omap_mcpdm_dai, 1);
-}
-
-static int asoc_mcpdm_remove(struct platform_device *pdev)
-{
-	snd_soc_unregister_component(&pdev->dev);
-	return 0;
+	return devm_snd_soc_register_component(&pdev->dev,
+					       &omap_mcpdm_component,
+					       &omap_mcpdm_dai, 1);
 }
 
 static const struct of_device_id omap_mcpdm_of_match[] = {
@@ -514,7 +509,6 @@ static struct platform_driver asoc_mcpdm_driver = {
 	},
 
 	.probe	= asoc_mcpdm_probe,
-	.remove	= asoc_mcpdm_remove,
 };
 
 module_platform_driver(asoc_mcpdm_driver);
-- 
cgit 


From 9ff50721e47ab0abb8b93159170f67262886ef0d Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 17 Sep 2013 10:32:48 +0530
Subject: ASoC: mmp-sspa: Use devm_snd_soc_register_component

devm_snd_soc_register_component makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/pxa/mmp-sspa.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/sound/soc/pxa/mmp-sspa.c b/sound/soc/pxa/mmp-sspa.c
index 41752a5fe3b0..5bf5f1f7cac5 100644
--- a/sound/soc/pxa/mmp-sspa.c
+++ b/sound/soc/pxa/mmp-sspa.c
@@ -455,8 +455,8 @@ static int asoc_mmp_sspa_probe(struct platform_device *pdev)
 	priv->dai_fmt = (unsigned int) -1;
 	platform_set_drvdata(pdev, priv);
 
-	return snd_soc_register_component(&pdev->dev, &mmp_sspa_component,
-					  &mmp_sspa_dai, 1);
+	return devm_snd_soc_register_component(&pdev->dev, &mmp_sspa_component,
+					       &mmp_sspa_dai, 1);
 }
 
 static int asoc_mmp_sspa_remove(struct platform_device *pdev)
@@ -466,7 +466,6 @@ static int asoc_mmp_sspa_remove(struct platform_device *pdev)
 	clk_disable(priv->audio_clk);
 	clk_put(priv->audio_clk);
 	clk_put(priv->sysclk);
-	snd_soc_unregister_component(&pdev->dev);
 	return 0;
 }
 
-- 
cgit 


From 5d4e7e8db0544ec53025383bac49a3328affdad3 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Fri, 13 Sep 2013 11:40:01 +0300
Subject: Bluetooth: Add synchronization train parameters reading support

This patch adds support for reading the synchronization train parameters
for controllers that support the feature. Since the feature is
detectable through the local features page 2, which is retreived only in
stage 3 of the HCI init sequence, there is no other option than to add a
fourth stage to the init sequence.

For now the patch doesn't yet add storing of the parameters, but it is
nevertheless convenient to have around to see what kind of parameters
various controllers use by default (analyzable e.g. with the btmon user
space tool).

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/hci.h |  2 ++
 net/bluetooth/hci_core.c    | 15 ++++++++++++++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 52bd2488ff4a..f7197a0ac759 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -835,6 +835,8 @@ struct hci_cp_write_le_host_supported {
 	__u8	simul;
 } __packed;
 
+#define HCI_OP_READ_SYNC_TRAIN_PARAMS	0x0c77
+
 #define HCI_OP_READ_LOCAL_VERSION	0x1001
 struct hci_rp_read_local_version {
 	__u8     status;
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index b24d2fa02c2f..ea542e07b2e9 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -648,6 +648,15 @@ static void hci_init3_req(struct hci_request *req, unsigned long opt)
 	}
 }
 
+static void hci_init4_req(struct hci_request *req, unsigned long opt)
+{
+	struct hci_dev *hdev = req->hdev;
+
+	/* Check for Synchronization Train support */
+	if (hdev->features[2][0] & 0x04)
+		hci_req_add(req, HCI_OP_READ_SYNC_TRAIN_PARAMS, 0, NULL);
+}
+
 static int __hci_init(struct hci_dev *hdev)
 {
 	int err;
@@ -667,7 +676,11 @@ static int __hci_init(struct hci_dev *hdev)
 	if (err < 0)
 		return err;
 
-	return __hci_req_sync(hdev, hci_init3_req, 0, HCI_INIT_TIMEOUT);
+	err = __hci_req_sync(hdev, hci_init3_req, 0, HCI_INIT_TIMEOUT);
+	if (err < 0)
+		return err;
+
+	return __hci_req_sync(hdev, hci_init4_req, 0, HCI_INIT_TIMEOUT);
 }
 
 static void hci_scan_req(struct hci_request *req, unsigned long opt)
-- 
cgit 


From d62e6d67a776fe6a0a725e2835e4f9e16e8db512 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Fri, 13 Sep 2013 11:40:02 +0300
Subject: Bluetooth: Add event mask page 2 setting support

For those controller that support the HCI_Set_Event_Mask_Page_2 command
we should include it in the init sequence. This patch implements sending
of the command and enables the events in it based on supported features
(currently only CSB is checked).

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/hci.h |  2 ++
 net/bluetooth/hci_core.c    | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index f7197a0ac759..22d6e664612a 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -823,6 +823,8 @@ struct hci_rp_read_inq_rsp_tx_power {
 	__s8     tx_power;
 } __packed;
 
+#define HCI_OP_SET_EVENT_MASK_PAGE_2	0x0c63
+
 #define HCI_OP_READ_FLOW_CONTROL_MODE	0x0c66
 struct hci_rp_read_flow_control_mode {
 	__u8     status;
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index ea542e07b2e9..3d9f02b2f010 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -607,6 +607,34 @@ static void hci_set_le_support(struct hci_request *req)
 			    &cp);
 }
 
+static void hci_set_event_mask_page_2(struct hci_request *req)
+{
+	struct hci_dev *hdev = req->hdev;
+	u8 events[8] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+
+	/* If Connectionless Slave Broadcast master role is supported
+	 * enable all necessary events for it.
+	 */
+	if (hdev->features[2][0] & 0x01) {
+		events[1] |= 0x40;	/* Triggered Clock Capture */
+		events[1] |= 0x80;	/* Synchronization Train Complete */
+		events[2] |= 0x10;	/* Slave Page Response Timeout */
+		events[2] |= 0x20;	/* CSB Channel Map Change */
+	}
+
+	/* If Connectionless Slave Broadcast slave role is supported
+	 * enable all necessary events for it.
+	 */
+	if (hdev->features[2][0] & 0x02) {
+		events[2] |= 0x01;	/* Synchronization Train Received */
+		events[2] |= 0x02;	/* CSB Receive */
+		events[2] |= 0x04;	/* CSB Timeout */
+		events[2] |= 0x08;	/* Truncated Page Complete */
+	}
+
+	hci_req_add(req, HCI_OP_SET_EVENT_MASK_PAGE_2, sizeof(events), events);
+}
+
 static void hci_init3_req(struct hci_request *req, unsigned long opt)
 {
 	struct hci_dev *hdev = req->hdev;
@@ -652,6 +680,10 @@ static void hci_init4_req(struct hci_request *req, unsigned long opt)
 {
 	struct hci_dev *hdev = req->hdev;
 
+	/* Set event mask page 2 if the HCI command for it is supported */
+	if (hdev->commands[22] & 0x04)
+		hci_set_event_mask_page_2(req);
+
 	/* Check for Synchronization Train support */
 	if (hdev->features[2][0] & 0x04)
 		hci_req_add(req, HCI_OP_READ_SYNC_TRAIN_PARAMS, 0, NULL);
-- 
cgit 


From cbf0541374e2fcfdfdcaf8365c957a137eb9feea Mon Sep 17 00:00:00 2001
From: Ryan Mallon <rmallon@gmail.com>
Date: Wed, 18 Sep 2013 12:40:47 -0700
Subject: Input: uinput - support injecting multiple events in one write() call

Rework the code in uinput_inject_event so that it matches the code in
evdev_write and allows injecting more than one event, or zero events.

Signed-off-by: Ryan Mallon <rmallon@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/misc/uinput.c | 26 ++++++++++++++++++--------
 1 file changed, 18 insertions(+), 8 deletions(-)

diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
index a0a4bbaef02c..772835938a52 100644
--- a/drivers/input/misc/uinput.c
+++ b/drivers/input/misc/uinput.c
@@ -430,20 +430,30 @@ static int uinput_setup_device(struct uinput_device *udev,
 	return retval;
 }
 
-static ssize_t uinput_inject_event(struct uinput_device *udev,
-				   const char __user *buffer, size_t count)
+static ssize_t uinput_inject_events(struct uinput_device *udev,
+				    const char __user *buffer, size_t count)
 {
 	struct input_event ev;
+	size_t bytes = 0;
 
-	if (count < input_event_size())
+	if (count != 0 && count < input_event_size())
 		return -EINVAL;
 
-	if (input_event_from_user(buffer, &ev))
-		return -EFAULT;
+	while (bytes + input_event_size() <= count) {
+		/*
+		 * Note that even if some events were fetched successfully
+		 * we are still going to return EFAULT instead of partial
+		 * count to let userspace know that it got it's buffers
+		 * all wrong.
+		 */
+		if (input_event_from_user(buffer + bytes, &ev))
+			return -EFAULT;
 
-	input_event(udev->dev, ev.type, ev.code, ev.value);
+		input_event(udev->dev, ev.type, ev.code, ev.value);
+		bytes += input_event_size();
+	}
 
-	return input_event_size();
+	return bytes;
 }
 
 static ssize_t uinput_write(struct file *file, const char __user *buffer,
@@ -460,7 +470,7 @@ static ssize_t uinput_write(struct file *file, const char __user *buffer,
 		return retval;
 
 	retval = udev->state == UIST_CREATED ?
-			uinput_inject_event(udev, buffer, count) :
+			uinput_inject_events(udev, buffer, count) :
 			uinput_setup_device(udev, buffer, count);
 
 	mutex_unlock(&udev->mutex);
-- 
cgit 


From aed06b9cfcabf8644ac5f6f108c0b3d01522f88b Mon Sep 17 00:00:00 2001
From: "K. Y. Srinivasan" <kys@microsoft.com>
Date: Wed, 18 Sep 2013 12:50:42 -0700
Subject: Input: add a driver to support Hyper-V synthetic keyboard

Add a new driver to support synthetic keyboard. On the next generation
Hyper-V guest firmware, many legacy devices will not be emulated and this
driver will be required.

I would like to thank Vojtech Pavlik <vojtech@suse.cz> for helping me with the
details of the AT keyboard driver. I would also like to thank
Dan Carpenter <dan.carpenter@oracle.com> and
Dmitry Torokhov <dmitry.torokhov@gmail.com> for their detailed review of this
driver.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/serio/Kconfig           |  10 +
 drivers/input/serio/Makefile          |   1 +
 drivers/input/serio/hyperv-keyboard.c | 437 ++++++++++++++++++++++++++++++++++
 3 files changed, 448 insertions(+)
 create mode 100644 drivers/input/serio/hyperv-keyboard.c

diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig
index 1e691a3a79cb..a5f342e7ea91 100644
--- a/drivers/input/serio/Kconfig
+++ b/drivers/input/serio/Kconfig
@@ -267,4 +267,14 @@ config SERIO_OLPC_APSP
 	  To compile this driver as a module, choose M here: the module will
 	  be called olpc_apsp.
 
+config HYPERV_KEYBOARD
+	tristate "Microsoft Synthetic Keyboard driver"
+	depends on HYPERV
+	default HYPERV
+	help
+	  Select this option to enable the Hyper-V Keyboard driver.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called hyperv_keyboard.
+
 endif
diff --git a/drivers/input/serio/Makefile b/drivers/input/serio/Makefile
index 12298b1c0e71..815d874fe724 100644
--- a/drivers/input/serio/Makefile
+++ b/drivers/input/serio/Makefile
@@ -28,3 +28,4 @@ obj-$(CONFIG_SERIO_ALTERA_PS2)	+= altera_ps2.o
 obj-$(CONFIG_SERIO_ARC_PS2)	+= arc_ps2.o
 obj-$(CONFIG_SERIO_APBPS2)	+= apbps2.o
 obj-$(CONFIG_SERIO_OLPC_APSP)	+= olpc_apsp.o
+obj-$(CONFIG_HYPERV_KEYBOARD)	+= hyperv-keyboard.o
diff --git a/drivers/input/serio/hyperv-keyboard.c b/drivers/input/serio/hyperv-keyboard.c
new file mode 100644
index 000000000000..3a83c3c14b23
--- /dev/null
+++ b/drivers/input/serio/hyperv-keyboard.c
@@ -0,0 +1,437 @@
+/*
+ *  Copyright (c) 2013, Microsoft Corporation.
+ *
+ *  This program is free software; you can redistribute it and/or modify it
+ *  under the terms and conditions of the GNU General Public License,
+ *  version 2, as published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ *  more details.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/completion.h>
+#include <linux/hyperv.h>
+#include <linux/serio.h>
+#include <linux/slab.h>
+
+/*
+ * Current version 1.0
+ *
+ */
+#define SYNTH_KBD_VERSION_MAJOR 1
+#define SYNTH_KBD_VERSION_MINOR	0
+#define SYNTH_KBD_VERSION		(SYNTH_KBD_VERSION_MINOR | \
+					 (SYNTH_KBD_VERSION_MAJOR << 16))
+
+
+/*
+ * Message types in the synthetic input protocol
+ */
+enum synth_kbd_msg_type {
+	SYNTH_KBD_PROTOCOL_REQUEST = 1,
+	SYNTH_KBD_PROTOCOL_RESPONSE = 2,
+	SYNTH_KBD_EVENT = 3,
+	SYNTH_KBD_LED_INDICATORS = 4,
+};
+
+/*
+ * Basic message structures.
+ */
+struct synth_kbd_msg_hdr {
+	__le32 type;
+};
+
+struct synth_kbd_msg {
+	struct synth_kbd_msg_hdr header;
+	char data[]; /* Enclosed message */
+};
+
+union synth_kbd_version {
+	__le32 version;
+};
+
+/*
+ * Protocol messages
+ */
+struct synth_kbd_protocol_request {
+	struct synth_kbd_msg_hdr header;
+	union synth_kbd_version version_requested;
+};
+
+#define PROTOCOL_ACCEPTED	BIT(0)
+struct synth_kbd_protocol_response {
+	struct synth_kbd_msg_hdr header;
+	__le32 proto_status;
+};
+
+#define IS_UNICODE	BIT(0)
+#define IS_BREAK	BIT(1)
+#define IS_E0		BIT(2)
+#define IS_E1		BIT(3)
+struct synth_kbd_keystroke {
+	struct synth_kbd_msg_hdr header;
+	__le16 make_code;
+	__le16 reserved0;
+	__le32 info; /* Additional information */
+};
+
+
+#define HK_MAXIMUM_MESSAGE_SIZE 256
+
+#define KBD_VSC_SEND_RING_BUFFER_SIZE		(10 * PAGE_SIZE)
+#define KBD_VSC_RECV_RING_BUFFER_SIZE		(10 * PAGE_SIZE)
+
+#define XTKBD_EMUL0     0xe0
+#define XTKBD_EMUL1     0xe1
+#define XTKBD_RELEASE   0x80
+
+
+/*
+ * Represents a keyboard device
+ */
+struct hv_kbd_dev {
+	struct hv_device *hv_dev;
+	struct serio *hv_serio;
+	struct synth_kbd_protocol_request protocol_req;
+	struct synth_kbd_protocol_response protocol_resp;
+	/* Synchronize the request/response if needed */
+	struct completion wait_event;
+	spinlock_t lock; /* protects 'started' field */
+	bool started;
+};
+
+static void hv_kbd_on_receive(struct hv_device *hv_dev,
+			      struct synth_kbd_msg *msg, u32 msg_length)
+{
+	struct hv_kbd_dev *kbd_dev = hv_get_drvdata(hv_dev);
+	struct synth_kbd_keystroke *ks_msg;
+	unsigned long flags;
+	u32 msg_type = __le32_to_cpu(msg->header.type);
+	u32 info;
+	u16 scan_code;
+
+	switch (msg_type) {
+	case SYNTH_KBD_PROTOCOL_RESPONSE:
+		/*
+		 * Validate the information provided by the host.
+		 * If the host is giving us a bogus packet,
+		 * drop the packet (hoping the problem
+		 * goes away).
+		 */
+		if (msg_length < sizeof(struct synth_kbd_protocol_response)) {
+			dev_err(&hv_dev->device,
+				"Illegal protocol response packet (len: %d)\n",
+				msg_length);
+			break;
+		}
+
+		memcpy(&kbd_dev->protocol_resp, msg,
+			sizeof(struct synth_kbd_protocol_response));
+		complete(&kbd_dev->wait_event);
+		break;
+
+	case SYNTH_KBD_EVENT:
+		/*
+		 * Validate the information provided by the host.
+		 * If the host is giving us a bogus packet,
+		 * drop the packet (hoping the problem
+		 * goes away).
+		 */
+		if (msg_length < sizeof(struct  synth_kbd_keystroke)) {
+			dev_err(&hv_dev->device,
+				"Illegal keyboard event packet (len: %d)\n",
+				msg_length);
+			break;
+		}
+
+		ks_msg = (struct synth_kbd_keystroke *)msg;
+		info = __le32_to_cpu(ks_msg->info);
+
+		/*
+		 * Inject the information through the serio interrupt.
+		 */
+		spin_lock_irqsave(&kbd_dev->lock, flags);
+		if (kbd_dev->started) {
+			if (info & IS_E0)
+				serio_interrupt(kbd_dev->hv_serio,
+						XTKBD_EMUL0, 0);
+
+			scan_code = __le16_to_cpu(ks_msg->make_code);
+			if (info & IS_BREAK)
+				scan_code |= XTKBD_RELEASE;
+
+			serio_interrupt(kbd_dev->hv_serio, scan_code, 0);
+		}
+		spin_unlock_irqrestore(&kbd_dev->lock, flags);
+		break;
+
+	default:
+		dev_err(&hv_dev->device,
+			"unhandled message type %d\n", msg_type);
+	}
+}
+
+static void hv_kbd_handle_received_packet(struct hv_device *hv_dev,
+					  struct vmpacket_descriptor *desc,
+					  u32 bytes_recvd,
+					  u64 req_id)
+{
+	struct synth_kbd_msg *msg;
+	u32 msg_sz;
+
+	switch (desc->type) {
+	case VM_PKT_COMP:
+		break;
+
+	case VM_PKT_DATA_INBAND:
+		/*
+		 * We have a packet that has "inband" data. The API used
+		 * for retrieving the packet guarantees that the complete
+		 * packet is read. So, minimally, we should be able to
+		 * parse the payload header safely (assuming that the host
+		 * can be trusted.  Trusting the host seems to be a
+		 * reasonable assumption because in a virtualized
+		 * environment there is not whole lot you can do if you
+		 * don't trust the host.
+		 *
+		 * Nonetheless, let us validate if the host can be trusted
+		 * (in a trivial way).  The interesting aspect of this
+		 * validation is how do you recover if we discover that the
+		 * host is not to be trusted? Simply dropping the packet, I
+		 * don't think is an appropriate recovery.  In the interest
+		 * of failing fast, it may be better to crash the guest.
+		 * For now, I will just drop the packet!
+		 */
+
+		msg_sz = bytes_recvd - (desc->offset8 << 3);
+		if (msg_sz <= sizeof(struct synth_kbd_msg_hdr)) {
+			/*
+			 * Drop the packet and hope
+			 * the problem magically goes away.
+			 */
+			dev_err(&hv_dev->device,
+				"Illegal packet (type: %d, tid: %llx, size: %d)\n",
+				desc->type, req_id, msg_sz);
+			break;
+		}
+
+		msg = (void *)desc + (desc->offset8 << 3);
+		hv_kbd_on_receive(hv_dev, msg, msg_sz);
+		break;
+
+	default:
+		dev_err(&hv_dev->device,
+			"unhandled packet type %d, tid %llx len %d\n",
+			desc->type, req_id, bytes_recvd);
+		break;
+	}
+}
+
+static void hv_kbd_on_channel_callback(void *context)
+{
+	struct hv_device *hv_dev = context;
+	void *buffer;
+	int bufferlen = 0x100; /* Start with sensible size */
+	u32 bytes_recvd;
+	u64 req_id;
+	int error;
+
+	buffer = kmalloc(bufferlen, GFP_ATOMIC);
+	if (!buffer)
+		return;
+
+	while (1) {
+		error = vmbus_recvpacket_raw(hv_dev->channel, buffer, bufferlen,
+					     &bytes_recvd, &req_id);
+		switch (error) {
+		case 0:
+			if (bytes_recvd == 0) {
+				kfree(buffer);
+				return;
+			}
+
+			hv_kbd_handle_received_packet(hv_dev, buffer,
+						      bytes_recvd, req_id);
+			break;
+
+		case -ENOBUFS:
+			kfree(buffer);
+			/* Handle large packet */
+			bufferlen = bytes_recvd;
+			buffer = kmalloc(bytes_recvd, GFP_ATOMIC);
+			if (!buffer)
+				return;
+			break;
+		}
+	}
+}
+
+static int hv_kbd_connect_to_vsp(struct hv_device *hv_dev)
+{
+	struct hv_kbd_dev *kbd_dev = hv_get_drvdata(hv_dev);
+	struct synth_kbd_protocol_request *request;
+	struct synth_kbd_protocol_response *response;
+	u32 proto_status;
+	int error;
+
+	request = &kbd_dev->protocol_req;
+	memset(request, 0, sizeof(struct synth_kbd_protocol_request));
+	request->header.type = __cpu_to_le32(SYNTH_KBD_PROTOCOL_REQUEST);
+	request->version_requested.version = __cpu_to_le32(SYNTH_KBD_VERSION);
+
+	error = vmbus_sendpacket(hv_dev->channel, request,
+				 sizeof(struct synth_kbd_protocol_request),
+				 (unsigned long)request,
+				 VM_PKT_DATA_INBAND,
+				 VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
+	if (error)
+		return error;
+
+	if (!wait_for_completion_timeout(&kbd_dev->wait_event, 10 * HZ))
+		return -ETIMEDOUT;
+
+	response = &kbd_dev->protocol_resp;
+	proto_status = __le32_to_cpu(response->proto_status);
+	if (!(proto_status & PROTOCOL_ACCEPTED)) {
+		dev_err(&hv_dev->device,
+			"synth_kbd protocol request failed (version %d)\n",
+		        SYNTH_KBD_VERSION);
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+static int hv_kbd_start(struct serio *serio)
+{
+	struct hv_kbd_dev *kbd_dev = serio->port_data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&kbd_dev->lock, flags);
+	kbd_dev->started = true;
+	spin_unlock_irqrestore(&kbd_dev->lock, flags);
+
+	return 0;
+}
+
+static void hv_kbd_stop(struct serio *serio)
+{
+	struct hv_kbd_dev *kbd_dev = serio->port_data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&kbd_dev->lock, flags);
+	kbd_dev->started = false;
+	spin_unlock_irqrestore(&kbd_dev->lock, flags);
+}
+
+static int hv_kbd_probe(struct hv_device *hv_dev,
+			const struct hv_vmbus_device_id *dev_id)
+{
+	struct hv_kbd_dev *kbd_dev;
+	struct serio *hv_serio;
+	int error;
+
+	kbd_dev = kzalloc(sizeof(struct hv_kbd_dev), GFP_KERNEL);
+	hv_serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
+	if (!kbd_dev || !hv_serio) {
+		error = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	kbd_dev->hv_dev = hv_dev;
+	kbd_dev->hv_serio = hv_serio;
+	spin_lock_init(&kbd_dev->lock);
+	init_completion(&kbd_dev->wait_event);
+	hv_set_drvdata(hv_dev, kbd_dev);
+
+	hv_serio->dev.parent  = &hv_dev->device;
+	hv_serio->id.type = SERIO_8042_XL;
+	hv_serio->port_data = kbd_dev;
+	strlcpy(hv_serio->name, dev_name(&hv_dev->device),
+		sizeof(hv_serio->name));
+	strlcpy(hv_serio->phys, dev_name(&hv_dev->device),
+		sizeof(hv_serio->phys));
+
+	hv_serio->start = hv_kbd_start;
+	hv_serio->stop = hv_kbd_stop;
+
+	error = vmbus_open(hv_dev->channel,
+			   KBD_VSC_SEND_RING_BUFFER_SIZE,
+			   KBD_VSC_RECV_RING_BUFFER_SIZE,
+			   NULL, 0,
+			   hv_kbd_on_channel_callback,
+			   hv_dev);
+	if (error)
+		goto err_free_mem;
+
+	error = hv_kbd_connect_to_vsp(hv_dev);
+	if (error)
+		goto err_close_vmbus;
+
+	serio_register_port(kbd_dev->hv_serio);
+	return 0;
+
+err_close_vmbus:
+	vmbus_close(hv_dev->channel);
+err_free_mem:
+	kfree(hv_serio);
+	kfree(kbd_dev);
+	return error;
+}
+
+static int hv_kbd_remove(struct hv_device *hv_dev)
+{
+	struct hv_kbd_dev *kbd_dev = hv_get_drvdata(hv_dev);
+
+	serio_unregister_port(kbd_dev->hv_serio);
+	vmbus_close(hv_dev->channel);
+	kfree(kbd_dev);
+
+	hv_set_drvdata(hv_dev, NULL);
+
+	return 0;
+}
+
+/*
+ * Keyboard GUID
+ * {f912ad6d-2b17-48ea-bd65-f927a61c7684}
+ */
+#define HV_KBD_GUID \
+	.guid = { \
+			0x6d, 0xad, 0x12, 0xf9, 0x17, 0x2b, 0xea, 0x48, \
+			0xbd, 0x65, 0xf9, 0x27, 0xa6, 0x1c, 0x76, 0x84 \
+	}
+
+static const struct hv_vmbus_device_id id_table[] = {
+	/* Keyboard guid */
+	{ HV_KBD_GUID, },
+	{ },
+};
+
+MODULE_DEVICE_TABLE(vmbus, id_table);
+
+static struct  hv_driver hv_kbd_drv = {
+	.name = KBUILD_MODNAME,
+	.id_table = id_table,
+	.probe = hv_kbd_probe,
+	.remove = hv_kbd_remove,
+};
+
+static int __init hv_kbd_init(void)
+{
+	return vmbus_driver_register(&hv_kbd_drv);
+}
+
+static void __exit hv_kbd_exit(void)
+{
+	vmbus_driver_unregister(&hv_kbd_drv);
+}
+
+MODULE_LICENSE("GPL");
+module_init(hv_kbd_init);
+module_exit(hv_kbd_exit);
-- 
cgit 


From 6be3cf7228692cfe6ff935848f4bbb9f0f4e3739 Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Wed, 18 Sep 2013 18:37:22 +0530
Subject: ARM: tegra: add palmas pincontrol to Dalmore device tree

Add Palmas pincontrol to Dalmore device tree and make following
configuration as default:
- Disable DVFS1 and DVFS2.
- Set GPIO6 to gpio mode.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/boot/dts/tegra114-dalmore.dts | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm/boot/dts/tegra114-dalmore.dts b/arch/arm/boot/dts/tegra114-dalmore.dts
index 60230288884b..dc5cdd7fd215 100644
--- a/arch/arm/boot/dts/tegra114-dalmore.dts
+++ b/arch/arm/boot/dts/tegra114-dalmore.dts
@@ -1011,6 +1011,19 @@
 				interrupt-parent = <&palmas>;
 				interrupts = <8 0>;
 			};
+
+			pinmux {
+				compatible = "ti,tps65913-pinctrl";
+				pinctrl-names = "default";
+				pinctrl-0 = <&palmas_default>;
+
+				palmas_default: pinmux {
+					pin_gpio6 {
+						pins = "gpio6";
+						function = "gpio";
+					};
+				};
+			};
 		};
 	};
 
-- 
cgit 


From e6e646e6778783037ea42db3034ce17d2a97583f Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Wed, 18 Sep 2013 18:52:32 +0530
Subject: ARM: tegra: use dt-binding header for key code

In place of hardcoding the key code in DTS file and comment the
key code as side notes, use the key code macro defines in the
dt-bindings/input/input.h directly.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/boot/dts/tegra114-dalmore.dts | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/tegra114-dalmore.dts b/arch/arm/boot/dts/tegra114-dalmore.dts
index dc5cdd7fd215..871aff5e2b87 100644
--- a/arch/arm/boot/dts/tegra114-dalmore.dts
+++ b/arch/arm/boot/dts/tegra114-dalmore.dts
@@ -1,5 +1,6 @@
 /dts-v1/;
 
+#include <dt-bindings/input/input.h>
 #include "tegra114.dtsi"
 
 / {
@@ -1094,26 +1095,26 @@
 		home {
 			label = "Home";
 			gpios = <&gpio TEGRA_GPIO(I, 5) GPIO_ACTIVE_LOW>;
-			linux,code = <102>; /* KEY_HOME */
+			linux,code = <KEY_HOME>;
 		};
 
 		power {
 			label = "Power";
 			gpios = <&gpio TEGRA_GPIO(Q, 0) GPIO_ACTIVE_LOW>;
-			linux,code = <116>; /* KEY_POWER */
+			linux,code = <KEY_POWER>;
 			gpio-key,wakeup;
 		};
 
 		volume_down {
 			label = "Volume Down";
 			gpios = <&gpio TEGRA_GPIO(R, 1) GPIO_ACTIVE_LOW>;
-			linux,code = <114>; /* KEY_VOLUMEDOWN */
+			linux,code = <KEY_VOLUMEDOWN>;
 		};
 
 		volume_up {
 			label = "Volume Up";
 			gpios = <&gpio TEGRA_GPIO(R, 2) GPIO_ACTIVE_LOW>;
-			linux,code = <115>; /* KEY_VOLUMEUP */
+			linux,code = <KEY_VOLUMEUP>;
 		};
 	};
 
-- 
cgit 


From edaf6d3d264ae9323a53a49b2a1cf42cc5df1be2 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 4 Sep 2013 08:59:51 +0100
Subject: ARM: 7831/1: mmc: mmci: Adapt to new pinctrl handling

There is no need for every driver to fetch a pinctrl handle and to
select the default state. Instead this is handled by the device driver
core, thus we can remove this piece of code from mmci.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/mmc/host/mmci.c | 17 -----------------
 drivers/mmc/host/mmci.h |  4 ----
 2 files changed, 21 deletions(-)

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index c3785edc0e92..5dffbbd57663 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1510,23 +1510,6 @@ static int mmci_probe(struct amba_device *dev,
 		mmc->f_max = min(host->mclk, fmax);
 	dev_dbg(mmc_dev(mmc), "clocking block at %u Hz\n", mmc->f_max);
 
-	host->pinctrl = devm_pinctrl_get(&dev->dev);
-	if (IS_ERR(host->pinctrl)) {
-		ret = PTR_ERR(host->pinctrl);
-		goto clk_disable;
-	}
-
-	host->pins_default = pinctrl_lookup_state(host->pinctrl,
-			PINCTRL_STATE_DEFAULT);
-
-	/* enable pins to be muxed in and configured */
-	if (!IS_ERR(host->pins_default)) {
-		ret = pinctrl_select_state(host->pinctrl, host->pins_default);
-		if (ret)
-			dev_warn(&dev->dev, "could not set default pins\n");
-	} else
-		dev_warn(&dev->dev, "could not get default pinstate\n");
-
 	/* Get regulators and the supported OCR mask */
 	mmc_regulator_get_supply(mmc);
 	if (!mmc->ocr_avail)
diff --git a/drivers/mmc/host/mmci.h b/drivers/mmc/host/mmci.h
index 69080fab6375..168bc72f7a94 100644
--- a/drivers/mmc/host/mmci.h
+++ b/drivers/mmc/host/mmci.h
@@ -200,10 +200,6 @@ struct mmci_host {
 	struct sg_mapping_iter	sg_miter;
 	unsigned int		size;
 
-	/* pinctrl handles */
-	struct pinctrl		*pinctrl;
-	struct pinctrl_state	*pins_default;
-
 #ifdef CONFIG_DMA_ENGINE
 	/* DMA stuff */
 	struct dma_chan		*dma_current;
-- 
cgit 


From e36bd9c6c99f47902d6fd6804730aa587ae275a0 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 4 Sep 2013 09:00:37 +0100
Subject: ARM: 7832/1: mmc: mmci: Use optional sleep pinctrl state

By optionally putting the pins into sleep state in the .runtime_suspend
callback we can accomplish two things. One is to minimize current leakage
from pins and thus save power, second we can prevent the IP from driving
pins output in an uncontrolled manner, which may happen if the power domain
drops the domain regulator.

When returning from idle, entering .runtime_resume callback, the pins
are restored to default state.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Rickard Andersson <rickard.andersson@stericsson.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/mmc/host/mmci.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 5dffbbd57663..c550b3ebb635 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1750,6 +1750,7 @@ static int mmci_runtime_suspend(struct device *dev)
 
 	if (mmc) {
 		struct mmci_host *host = mmc_priv(mmc);
+		pinctrl_pm_select_sleep_state(dev);
 		clk_disable_unprepare(host->clk);
 	}
 
@@ -1764,6 +1765,7 @@ static int mmci_runtime_resume(struct device *dev)
 	if (mmc) {
 		struct mmci_host *host = mmc_priv(mmc);
 		clk_prepare_enable(host->clk);
+		pinctrl_pm_select_default_state(dev);
 	}
 
 	return 0;
-- 
cgit 


From f829c04204de83aa0d13307d2a2dc07c0d9a94e3 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 4 Sep 2013 09:01:15 +0100
Subject: ARM: 7833/1: mmc: mmci: Adapt to register write restrictions

After a write to the MMCICLOCK register data cannot be written to this
register for three feedback clock cycles. Writes to the MMCIPOWER
register must be separated by three MCLK cycles. Previously no issues
has been observered, but using higher ARM clock frequencies on STE-
platforms has triggered this problem.

The MMCICLOCK register is written to in .set_ios and for some data
transmissions for SDIO. We do not need a delay at the data transmission
path, because sending and receiving data will require more than three
clock cycles. Then we use a simple logic to only delay in .set_ios and
thus we don't affect throughput performance.

Signed-off-by: Johan Rudholm <jrudholm@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Rickard Andersson <rickard.andersson@stericsson.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/mmc/host/mmci.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index c550b3ebb635..604e41db00db 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -189,6 +189,21 @@ static int mmci_validate_data(struct mmci_host *host,
 	return 0;
 }
 
+static void mmci_reg_delay(struct mmci_host *host)
+{
+	/*
+	 * According to the spec, at least three feedback clock cycles
+	 * of max 52 MHz must pass between two writes to the MMCICLOCK reg.
+	 * Three MCLK clock cycles must pass between two MMCIPOWER reg writes.
+	 * Worst delay time during card init is at 100 kHz => 30 us.
+	 * Worst delay time when up and running is at 25 MHz => 120 ns.
+	 */
+	if (host->cclk < 25000000)
+		udelay(30);
+	else
+		ndelay(120);
+}
+
 /*
  * This must be called with host->lock held
  */
@@ -1264,6 +1279,7 @@ static void mmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 
 	mmci_set_clkreg(host, ios->clock);
 	mmci_write_pwrreg(host, pwr);
+	mmci_reg_delay(host);
 
 	spin_unlock_irqrestore(&host->lock, flags);
 
-- 
cgit 


From 1ff44433c661c30afde6e6d2c47a29039a293da4 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 4 Sep 2013 09:05:17 +0100
Subject: ARM: 7834/1: mmc: mmci: Save and restore register context

If a corresponding power domain exists for the device and it manages
to cut the domain regulator while the device is runtime suspended,
the IP loses it's registers context. We restore the context in the
.runtime_resume callback from the existing register caches to adapt
to this situation.

We also want to make sure the registers are in a known state while
restoring context in the case when the power domain did not drop the
power, since there are restrictions for the order of writing to these
registers. To handle this, we clear the registers in the
.runtime_suspend callback.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Rickard Andersson <rickard.andersson@stericsson.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/mmc/host/mmci.c | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index 604e41db00db..d135c76c4855 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -62,6 +62,7 @@ static unsigned int fmax = 515633;
  * @signal_direction: input/out direction of bus signals can be indicated
  * @pwrreg_clkgate: MMCIPOWER register must be used to gate the clock
  * @busy_detect: true if busy detection on dat0 is supported
+ * @pwrreg_nopower: bits in MMCIPOWER don't controls ext. power supply
  */
 struct variant_data {
 	unsigned int		clkreg;
@@ -76,6 +77,7 @@ struct variant_data {
 	bool			signal_direction;
 	bool			pwrreg_clkgate;
 	bool			busy_detect;
+	bool			pwrreg_nopower;
 };
 
 static struct variant_data variant_arm = {
@@ -109,6 +111,7 @@ static struct variant_data variant_u300 = {
 	.pwrreg_powerup		= MCI_PWR_ON,
 	.signal_direction	= true,
 	.pwrreg_clkgate		= true,
+	.pwrreg_nopower		= true,
 };
 
 static struct variant_data variant_nomadik = {
@@ -121,6 +124,7 @@ static struct variant_data variant_nomadik = {
 	.pwrreg_powerup		= MCI_PWR_ON,
 	.signal_direction	= true,
 	.pwrreg_clkgate		= true,
+	.pwrreg_nopower		= true,
 };
 
 static struct variant_data variant_ux500 = {
@@ -135,6 +139,7 @@ static struct variant_data variant_ux500 = {
 	.signal_direction	= true,
 	.pwrreg_clkgate		= true,
 	.busy_detect		= true,
+	.pwrreg_nopower		= true,
 };
 
 static struct variant_data variant_ux500v2 = {
@@ -150,6 +155,7 @@ static struct variant_data variant_ux500v2 = {
 	.signal_direction	= true,
 	.pwrreg_clkgate		= true,
 	.busy_detect		= true,
+	.pwrreg_nopower		= true,
 };
 
 static int mmci_card_busy(struct mmc_host *mmc)
@@ -1759,6 +1765,41 @@ static int mmci_resume(struct device *dev)
 #endif
 
 #ifdef CONFIG_PM_RUNTIME
+static void mmci_save(struct mmci_host *host)
+{
+	unsigned long flags;
+
+	if (host->variant->pwrreg_nopower) {
+		spin_lock_irqsave(&host->lock, flags);
+
+		writel(0, host->base + MMCIMASK0);
+		writel(0, host->base + MMCIDATACTRL);
+		writel(0, host->base + MMCIPOWER);
+		writel(0, host->base + MMCICLOCK);
+		mmci_reg_delay(host);
+
+		spin_unlock_irqrestore(&host->lock, flags);
+	}
+
+}
+
+static void mmci_restore(struct mmci_host *host)
+{
+	unsigned long flags;
+
+	if (host->variant->pwrreg_nopower) {
+		spin_lock_irqsave(&host->lock, flags);
+
+		writel(host->clk_reg, host->base + MMCICLOCK);
+		writel(host->datactrl_reg, host->base + MMCIDATACTRL);
+		writel(host->pwr_reg, host->base + MMCIPOWER);
+		writel(MCI_IRQENABLE, host->base + MMCIMASK0);
+		mmci_reg_delay(host);
+
+		spin_unlock_irqrestore(&host->lock, flags);
+	}
+}
+
 static int mmci_runtime_suspend(struct device *dev)
 {
 	struct amba_device *adev = to_amba_device(dev);
@@ -1767,6 +1808,7 @@ static int mmci_runtime_suspend(struct device *dev)
 	if (mmc) {
 		struct mmci_host *host = mmc_priv(mmc);
 		pinctrl_pm_select_sleep_state(dev);
+		mmci_save(host);
 		clk_disable_unprepare(host->clk);
 	}
 
@@ -1781,6 +1823,7 @@ static int mmci_runtime_resume(struct device *dev)
 	if (mmc) {
 		struct mmci_host *host = mmc_priv(mmc);
 		clk_prepare_enable(host->clk);
+		mmci_restore(host);
 		pinctrl_pm_select_default_state(dev);
 	}
 
-- 
cgit 


From 0750a54592a2daff70771a1c170f9859d5901d3d Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Thu, 8 Aug 2013 07:26:48 +0900
Subject: ARM: shmobile: Rename to r8a73a4_init_early()

Rename r8a73a4_init_delay() into r8a73a4_init_early()
to make the function name show that more than just
delay setup may happen in the future.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-ape6evm-reference.c | 2 +-
 arch/arm/mach-shmobile/board-ape6evm.c           | 2 +-
 arch/arm/mach-shmobile/include/mach/r8a73a4.h    | 2 +-
 arch/arm/mach-shmobile/setup-r8a73a4.c           | 4 ++--
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-shmobile/board-ape6evm-reference.c b/arch/arm/mach-shmobile/board-ape6evm-reference.c
index a23fa714f7ac..3276afcf3cc9 100644
--- a/arch/arm/mach-shmobile/board-ape6evm-reference.c
+++ b/arch/arm/mach-shmobile/board-ape6evm-reference.c
@@ -57,7 +57,7 @@ static const char *ape6evm_boards_compat_dt[] __initdata = {
 };
 
 DT_MACHINE_START(APE6EVM_DT, "ape6evm")
-	.init_early	= r8a73a4_init_delay,
+	.init_early	= r8a73a4_init_early,
 	.init_machine	= ape6evm_add_standard_devices,
 	.dt_compat	= ape6evm_boards_compat_dt,
 MACHINE_END
diff --git a/arch/arm/mach-shmobile/board-ape6evm.c b/arch/arm/mach-shmobile/board-ape6evm.c
index 24b87eea9da3..d36e23f5d8b7 100644
--- a/arch/arm/mach-shmobile/board-ape6evm.c
+++ b/arch/arm/mach-shmobile/board-ape6evm.c
@@ -240,7 +240,7 @@ static const char *ape6evm_boards_compat_dt[] __initdata = {
 };
 
 DT_MACHINE_START(APE6EVM_DT, "ape6evm")
-	.init_early	= r8a73a4_init_delay,
+	.init_early	= r8a73a4_init_early,
 	.init_machine	= ape6evm_add_standard_devices,
 	.dt_compat	= ape6evm_boards_compat_dt,
 MACHINE_END
diff --git a/arch/arm/mach-shmobile/include/mach/r8a73a4.h b/arch/arm/mach-shmobile/include/mach/r8a73a4.h
index f3a9b702da56..5214338a6a47 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a73a4.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a73a4.h
@@ -5,6 +5,6 @@ void r8a73a4_add_standard_devices(void);
 void r8a73a4_add_dt_devices(void);
 void r8a73a4_clock_init(void);
 void r8a73a4_pinmux_init(void);
-void r8a73a4_init_delay(void);
+void r8a73a4_init_early(void);
 
 #endif /* __ASM_R8A73A4_H__ */
diff --git a/arch/arm/mach-shmobile/setup-r8a73a4.c b/arch/arm/mach-shmobile/setup-r8a73a4.c
index 89491700afb7..53a896275cae 100644
--- a/arch/arm/mach-shmobile/setup-r8a73a4.c
+++ b/arch/arm/mach-shmobile/setup-r8a73a4.c
@@ -207,7 +207,7 @@ void __init r8a73a4_add_standard_devices(void)
 	r8a73a4_register_thermal();
 }
 
-void __init r8a73a4_init_delay(void)
+void __init r8a73a4_init_early(void)
 {
 #ifndef CONFIG_ARM_ARCH_TIMER
 	shmobile_setup_delay(1500, 2, 4); /* Cortex-A15 @ 1500MHz */
@@ -222,7 +222,7 @@ static const char *r8a73a4_boards_compat_dt[] __initdata = {
 };
 
 DT_MACHINE_START(R8A73A4_DT, "Generic R8A73A4 (Flattened Device Tree)")
-	.init_early	= r8a73a4_init_delay,
+	.init_early	= r8a73a4_init_early,
 	.dt_compat	= r8a73a4_boards_compat_dt,
 MACHINE_END
 #endif /* CONFIG_USE_OF */
-- 
cgit 


From 0efd7faa6c611dab4ab8105473d2ffde7918cb69 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Thu, 8 Aug 2013 07:27:01 +0900
Subject: ARM: shmobile: Rename to r8a7790_init_early()

Rename r8a7790_init_delay() into r8a7790_init_early()
to make the function name show that more than just
delay setup may happen in the future.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-lager-reference.c | 2 +-
 arch/arm/mach-shmobile/board-lager.c           | 2 +-
 arch/arm/mach-shmobile/include/mach/r8a7790.h  | 2 +-
 arch/arm/mach-shmobile/setup-r8a7790.c         | 4 ++--
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-shmobile/board-lager-reference.c b/arch/arm/mach-shmobile/board-lager-reference.c
index 9c316a1b2e32..2856f51ff8a6 100644
--- a/arch/arm/mach-shmobile/board-lager-reference.c
+++ b/arch/arm/mach-shmobile/board-lager-reference.c
@@ -38,7 +38,7 @@ static const char *lager_boards_compat_dt[] __initdata = {
 };
 
 DT_MACHINE_START(LAGER_DT, "lager")
-	.init_early	= r8a7790_init_delay,
+	.init_early	= r8a7790_init_early,
 	.init_machine	= lager_add_standard_devices,
 	.init_time	= r8a7790_timer_init,
 	.dt_compat	= lager_boards_compat_dt,
diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index ffb6f0ac7606..4047fac811c0 100644
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -161,7 +161,7 @@ static const char *lager_boards_compat_dt[] __initdata = {
 };
 
 DT_MACHINE_START(LAGER_DT, "lager")
-	.init_early	= r8a7790_init_delay,
+	.init_early	= r8a7790_init_early,
 	.init_time	= r8a7790_timer_init,
 	.init_machine	= lager_add_standard_devices,
 	.dt_compat	= lager_boards_compat_dt,
diff --git a/arch/arm/mach-shmobile/include/mach/r8a7790.h b/arch/arm/mach-shmobile/include/mach/r8a7790.h
index 788d55952091..177a8372abb7 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7790.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7790.h
@@ -5,7 +5,7 @@ void r8a7790_add_standard_devices(void);
 void r8a7790_add_dt_devices(void);
 void r8a7790_clock_init(void);
 void r8a7790_pinmux_init(void);
-void r8a7790_init_delay(void);
+void r8a7790_init_early(void);
 void r8a7790_timer_init(void);
 
 #define MD(nr) BIT(nr)
diff --git a/arch/arm/mach-shmobile/setup-r8a7790.c b/arch/arm/mach-shmobile/setup-r8a7790.c
index d0f5c9f9349a..a42d1f6f1f81 100644
--- a/arch/arm/mach-shmobile/setup-r8a7790.c
+++ b/arch/arm/mach-shmobile/setup-r8a7790.c
@@ -267,7 +267,7 @@ void __init r8a7790_timer_init(void)
 	clocksource_of_init();
 }
 
-void __init r8a7790_init_delay(void)
+void __init r8a7790_init_early(void)
 {
 #ifndef CONFIG_ARM_ARCH_TIMER
 	shmobile_setup_delay(1300, 2, 4); /* Cortex-A15 @ 1300MHz */
@@ -282,7 +282,7 @@ static const char *r8a7790_boards_compat_dt[] __initdata = {
 };
 
 DT_MACHINE_START(R8A7790_DT, "Generic R8A7790 (Flattened Device Tree)")
-	.init_early	= r8a7790_init_delay,
+	.init_early	= r8a7790_init_early,
 	.init_time	= r8a7790_timer_init,
 	.dt_compat	= r8a7790_boards_compat_dt,
 MACHINE_END
-- 
cgit 


From cde214a890f81797a5eee94fffc89c1de21ed991 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Thu, 8 Aug 2013 00:34:53 +0200
Subject: ARM: shmobile: r8a7790: Constify platform data and resources

Platform data and resources for core devices are kmemdup()ed when the
corresponding devices are registered and can thus be declared as const.
Do so.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/setup-r8a7790.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/arch/arm/mach-shmobile/setup-r8a7790.c b/arch/arm/mach-shmobile/setup-r8a7790.c
index a42d1f6f1f81..e0d29a265c2d 100644
--- a/arch/arm/mach-shmobile/setup-r8a7790.c
+++ b/arch/arm/mach-shmobile/setup-r8a7790.c
@@ -31,17 +31,18 @@
 #include <mach/r8a7790.h>
 #include <asm/mach/arch.h>
 
-static struct resource pfc_resources[] __initdata = {
+static const struct resource pfc_resources[] __initconst = {
 	DEFINE_RES_MEM(0xe6060000, 0x250),
 };
 
 #define R8A7790_GPIO(idx)						\
-static struct resource r8a7790_gpio##idx##_resources[] __initdata = {	\
+static const struct resource r8a7790_gpio##idx##_resources[] __initconst = { \
 	DEFINE_RES_MEM(0xe6050000 + 0x1000 * (idx), 0x50),		\
 	DEFINE_RES_IRQ(gic_spi(4 + (idx))),				\
 };									\
 									\
-static struct gpio_rcar_config r8a7790_gpio##idx##_platform_data __initdata = {	\
+static const struct gpio_rcar_config					\
+r8a7790_gpio##idx##_platform_data __initconst = {			\
 	.gpio_base	= 32 * (idx),					\
 	.irq_base	= 0,						\
 	.number_of_pins	= 32,						\
@@ -112,7 +113,7 @@ void __init r8a7790_pinmux_init(void)
 enum { SCIFA0, SCIFA1, SCIFB0, SCIFB1, SCIFB2, SCIFA2, SCIF0, SCIF1,
        HSCIF0, HSCIF1 };
 
-static struct plat_sci_port scif[] __initdata = {
+static const struct plat_sci_port scif[] __initconst = {
 	SCIFA_DATA(SCIFA0, 0xe6c40000, gic_spi(144)), /* SCIFA0 */
 	SCIFA_DATA(SCIFA1, 0xe6c50000, gic_spi(145)), /* SCIFA1 */
 	SCIFB_DATA(SCIFB0, 0xe6c20000, gic_spi(148)), /* SCIFB0 */
@@ -131,11 +132,11 @@ static inline void r8a7790_register_scif(int idx)
 				      sizeof(struct plat_sci_port));
 }
 
-static struct renesas_irqc_config irqc0_data __initdata = {
+static const struct renesas_irqc_config irqc0_data __initconst = {
 	.irq_base = irq_pin(0), /* IRQ0 -> IRQ3 */
 };
 
-static struct resource irqc0_resources[] __initdata = {
+static const struct resource irqc0_resources[] __initconst = {
 	DEFINE_RES_MEM(0xe61c0000, 0x200), /* IRQC Event Detector Block_0 */
 	DEFINE_RES_IRQ(gic_spi(0)), /* IRQ0 */
 	DEFINE_RES_IRQ(gic_spi(1)), /* IRQ1 */
@@ -150,7 +151,7 @@ static struct resource irqc0_resources[] __initdata = {
 					  &irqc##idx##_data,		\
 					  sizeof(struct renesas_irqc_config))
 
-static struct resource thermal_resources[] __initdata = {
+static const struct resource thermal_resources[] __initconst = {
 	DEFINE_RES_MEM(0xe61f0000, 0x14),
 	DEFINE_RES_MEM(0xe61f0100, 0x38),
 	DEFINE_RES_IRQ(gic_spi(69)),
@@ -161,13 +162,13 @@ static struct resource thermal_resources[] __initdata = {
 					thermal_resources,		\
 					ARRAY_SIZE(thermal_resources))
 
-static struct sh_timer_config cmt00_platform_data __initdata = {
+static const struct sh_timer_config cmt00_platform_data __initconst = {
 	.name = "CMT00",
 	.timer_bit = 0,
 	.clockevent_rating = 80,
 };
 
-static struct resource cmt00_resources[] __initdata = {
+static const struct resource cmt00_resources[] __initconst = {
 	DEFINE_RES_MEM(0xffca0510, 0x0c),
 	DEFINE_RES_MEM(0xffca0500, 0x04),
 	DEFINE_RES_IRQ(gic_spi(142)), /* CMT0_0 */
@@ -276,7 +277,7 @@ void __init r8a7790_init_early(void)
 
 #ifdef CONFIG_USE_OF
 
-static const char *r8a7790_boards_compat_dt[] __initdata = {
+static const char * const r8a7790_boards_compat_dt[] __initconst = {
 	"renesas,r8a7790",
 	NULL,
 };
-- 
cgit 


From dbffb5a1525dc88f1c871c48574634f14845b43d Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 1 Aug 2013 09:41:21 +0200
Subject: ARM: shmobile: ape6evm-reference: add MMCIF and SDHI DT nodes

This patch adds MMCIF0, SDHI0 and SDHI1 DT nodes and a fixed voltage
reglator for them to the ape6evm-reference platform.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts | 72 +++++++++++++++++++++++++
 1 file changed, 72 insertions(+)

diff --git a/arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts b/arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts
index f444624eb097..2b49b05ae2f4 100644
--- a/arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts
+++ b/arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts
@@ -10,6 +10,7 @@
 
 /dts-v1/;
 /include/ "r8a73a4.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	model = "APE6EVM";
@@ -24,6 +25,34 @@
 		reg = <0 0x40000000 0 0x40000000>;
 	};
 
+	vcc_mmc0: regulator@0 {
+		compatible = "regulator-fixed";
+		regulator-name = "MMC0 Vcc";
+		regulator-min-microvolt = <2800000>;
+		regulator-max-microvolt = <2800000>;
+		regulator-always-on;
+	};
+
+	vcc_sdhi0: regulator@1 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "SDHI0 Vcc";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&pfc 76 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	/* Common 3.3V rail, used by several devices on APE6EVM */
+	ape6evm_fixed_3v3: regulator@2 {
+		compatible = "regulator-fixed";
+		regulator-name = "3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
 	lbsc {
 		compatible = "simple-bus";
 		#address-cells = <1>;
@@ -62,4 +91,47 @@
 		renesas,groups = "scifa0_data";
 		renesas,function = "scifa0";
 	};
+
+	mmc0_pins: mmcif {
+		renesas,groups = "mmc0_data8", "mmc0_ctrl";
+		renesas,function = "mmc0";
+	};
+
+	sdhi0_pins: sdhi0 {
+		renesas,groups = "sdhi0_data4", "sdhi0_ctrl", "sdhi0_cd";
+		renesas,function = "sdhi0";
+	};
+
+	sdhi1_pins: sdhi1 {
+		renesas,groups = "sdhi1_data4", "sdhi1_ctrl";
+		renesas,function = "sdhi1";
+	};
+};
+
+&mmcif0 {
+	vmmc-supply = <&vcc_mmc0>;
+	bus-width = <8>;
+	non-removable;
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc0_pins>;
+	status = "okay";
+};
+
+&sdhi0 {
+	vmmc-supply = <&vcc_sdhi0>;
+	bus-width = <4>;
+	toshiba,mmc-wrprotect-disable;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdhi0_pins>;
+	status = "okay";
+};
+
+&sdhi1 {
+	vmmc-supply = <&ape6evm_fixed_3v3>;
+	bus-width = <4>;
+	broken-cd;
+	toshiba,mmc-wrprotect-disable;
+	pinctrl-names = "default";
+	pinctrl-0 = <&sdhi1_pins>;
+	status = "okay";
 };
-- 
cgit 


From acf47ee741c4a5eb8a17438e8858f1cffa1e073a Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Thu, 8 Aug 2013 04:25:00 +0200
Subject: ARM: shmobile: r8a7779: Rename DU device in clock lookups list

The DU device will be called rcar-du-r8a7779. Rename the clock lookup
entry accordingly.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a7779.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/clock-r8a7779.c b/arch/arm/mach-shmobile/clock-r8a7779.c
index bd6ad922eb7e..1f7080fab0a5 100644
--- a/arch/arm/mach-shmobile/clock-r8a7779.c
+++ b/arch/arm/mach-shmobile/clock-r8a7779.c
@@ -200,7 +200,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP322]), /* SDHI1 */
 	CLKDEV_DEV_ID("sh_mobile_sdhi.2", &mstp_clks[MSTP321]), /* SDHI2 */
 	CLKDEV_DEV_ID("sh_mobile_sdhi.3", &mstp_clks[MSTP320]), /* SDHI3 */
-	CLKDEV_DEV_ID("rcar-du.0", &mstp_clks[MSTP103]), /* DU */
+	CLKDEV_DEV_ID("rcar-du-r8a7779", &mstp_clks[MSTP103]), /* DU */
 };
 
 void __init r8a7779_clock_init(void)
-- 
cgit 


From 9d8907c4e8c97127c562055ac7e1a8ea39ea589c Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Wed, 17 Apr 2013 11:33:56 +0200
Subject: ARM: shmobile: r8a7790: Add DU and LVDS clocks

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a7790.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/clock-r8a7790.c b/arch/arm/mach-shmobile/clock-r8a7790.c
index fc36d3db0b4d..d99b87bc76ea 100644
--- a/arch/arm/mach-shmobile/clock-r8a7790.c
+++ b/arch/arm/mach-shmobile/clock-r8a7790.c
@@ -182,7 +182,7 @@ static struct clk div6_clks[DIV6_NR] = {
 /* MSTP */
 enum {
 	MSTP813,
-	MSTP721, MSTP720,
+	MSTP726, MSTP725, MSTP724, MSTP723, MSTP722, MSTP721, MSTP720,
 	MSTP717, MSTP716,
 	MSTP522,
 	MSTP315, MSTP314, MSTP313, MSTP312, MSTP311, MSTP305, MSTP304,
@@ -193,6 +193,11 @@ enum {
 
 static struct clk mstp_clks[MSTP_NR] = {
 	[MSTP813] = SH_CLK_MSTP32(&p_clk, SMSTPCR8, 13, 0), /* Ether */
+	[MSTP726] = SH_CLK_MSTP32(&zx_clk, SMSTPCR7, 26, 0), /* LVDS0 */
+	[MSTP725] = SH_CLK_MSTP32(&zx_clk, SMSTPCR7, 25, 0), /* LVDS1 */
+	[MSTP724] = SH_CLK_MSTP32(&zx_clk, SMSTPCR7, 24, 0), /* DU0 */
+	[MSTP723] = SH_CLK_MSTP32(&zx_clk, SMSTPCR7, 23, 0), /* DU1 */
+	[MSTP722] = SH_CLK_MSTP32(&zx_clk, SMSTPCR7, 22, 0), /* DU2 */
 	[MSTP721] = SH_CLK_MSTP32(&p_clk, SMSTPCR7, 21, 0), /* SCIF0 */
 	[MSTP720] = SH_CLK_MSTP32(&p_clk, SMSTPCR7, 20, 0), /* SCIF1 */
 	[MSTP717] = SH_CLK_MSTP32(&zs_clk, SMSTPCR7, 17, 0), /* HSCIF0 */
@@ -251,6 +256,11 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_CON_ID("ssprs",		&div6_clks[DIV6_SSPRS]),
 
 	/* MSTP */
+	CLKDEV_ICK_ID("lvds.0", "rcar-du-r8a7790", &mstp_clks[MSTP726]),
+	CLKDEV_ICK_ID("lvds.1", "rcar-du-r8a7790", &mstp_clks[MSTP725]),
+	CLKDEV_ICK_ID("du.0", "rcar-du-r8a7790", &mstp_clks[MSTP724]),
+	CLKDEV_ICK_ID("du.1", "rcar-du-r8a7790", &mstp_clks[MSTP723]),
+	CLKDEV_ICK_ID("du.2", "rcar-du-r8a7790", &mstp_clks[MSTP722]),
 	CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]),
 	CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP203]),
 	CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP206]),
-- 
cgit 


From a93c2aaf18e0e10084c099a0ba2460ab8e3c0e05 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 26 Aug 2013 01:51:37 -0700
Subject: ARM: shmobile: r8a7778: add SSI/SRU clock support

Add a platform clock for the r8a7778 SRU/SSI sound.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a7778.c | 43 ++++++++++++++++++++++++++++++++--
 1 file changed, 41 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-shmobile/clock-r8a7778.c b/arch/arm/mach-shmobile/clock-r8a7778.c
index c4bf2d8fb111..244a8dec4d04 100644
--- a/arch/arm/mach-shmobile/clock-r8a7778.c
+++ b/arch/arm/mach-shmobile/clock-r8a7778.c
@@ -69,6 +69,15 @@ static struct clk extal_clk = {
 	.mapping = &cpg_mapping,
 };
 
+static struct clk audio_clk_a = {
+};
+
+static struct clk audio_clk_b = {
+};
+
+static struct clk audio_clk_c = {
+};
+
 /*
  * clock ratio of these clock will be updated
  * on r8a7778_clock_init()
@@ -100,18 +109,23 @@ static struct clk *main_clks[] = {
 	&p_clk,
 	&g_clk,
 	&z_clk,
+	&audio_clk_a,
+	&audio_clk_b,
+	&audio_clk_c,
 };
 
 enum {
 	MSTP331,
 	MSTP323, MSTP322, MSTP321,
+	MSTP311, MSTP310,
+	MSTP309, MSTP308, MSTP307,
 	MSTP114,
 	MSTP110, MSTP109,
 	MSTP100,
 	MSTP030,
 	MSTP029, MSTP028, MSTP027, MSTP026, MSTP025, MSTP024, MSTP023, MSTP022, MSTP021,
-	MSTP016, MSTP015,
-	MSTP007,
+	MSTP016, MSTP015, MSTP012, MSTP011, MSTP010,
+	MSTP009, MSTP008, MSTP007,
 	MSTP_NR };
 
 static struct clk mstp_clks[MSTP_NR] = {
@@ -119,6 +133,11 @@ static struct clk mstp_clks[MSTP_NR] = {
 	[MSTP323] = SH_CLK_MSTP32(&p_clk, MSTPCR3, 23, 0), /* SDHI0 */
 	[MSTP322] = SH_CLK_MSTP32(&p_clk, MSTPCR3, 22, 0), /* SDHI1 */
 	[MSTP321] = SH_CLK_MSTP32(&p_clk, MSTPCR3, 21, 0), /* SDHI2 */
+	[MSTP311] = SH_CLK_MSTP32(&p_clk, MSTPCR3, 11, 0), /* SSI4 */
+	[MSTP310] = SH_CLK_MSTP32(&p_clk, MSTPCR3, 10, 0), /* SSI5 */
+	[MSTP309] = SH_CLK_MSTP32(&p_clk, MSTPCR3,  9, 0), /* SSI6 */
+	[MSTP308] = SH_CLK_MSTP32(&p_clk, MSTPCR3,  8, 0), /* SSI7 */
+	[MSTP307] = SH_CLK_MSTP32(&p_clk, MSTPCR3,  7, 0), /* SSI8 */
 	[MSTP114] = SH_CLK_MSTP32(&p_clk, MSTPCR1, 14, 0), /* Ether */
 	[MSTP110] = SH_CLK_MSTP32(&s_clk, MSTPCR1, 10, 0), /* VIN0 */
 	[MSTP109] = SH_CLK_MSTP32(&s_clk, MSTPCR1,  9, 0), /* VIN1 */
@@ -135,11 +154,20 @@ static struct clk mstp_clks[MSTP_NR] = {
 	[MSTP021] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 21, 0), /* SCIF5 */
 	[MSTP016] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 16, 0), /* TMU0 */
 	[MSTP015] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 15, 0), /* TMU1 */
+	[MSTP012] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 12, 0), /* SSI0 */
+	[MSTP011] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 11, 0), /* SSI1 */
+	[MSTP010] = SH_CLK_MSTP32(&p_clk, MSTPCR0, 10, 0), /* SSI2 */
+	[MSTP009] = SH_CLK_MSTP32(&p_clk, MSTPCR0,  9, 0), /* SSI3 */
+	[MSTP008] = SH_CLK_MSTP32(&p_clk, MSTPCR0,  8, 0), /* SRU */
 	[MSTP007] = SH_CLK_MSTP32(&p_clk, MSTPCR0,  7, 0), /* HSPI */
 };
 
 static struct clk_lookup lookups[] = {
 	/* main */
+	CLKDEV_CON_ID("audio_clk_a",	&audio_clk_a),
+	CLKDEV_CON_ID("audio_clk_b",	&audio_clk_b),
+	CLKDEV_CON_ID("audio_clk_c",	&audio_clk_c),
+	CLKDEV_CON_ID("audio_clk_internal",	&s1_clk),
 	CLKDEV_CON_ID("shyway_clk",	&s_clk),
 	CLKDEV_CON_ID("peripheral_clk",	&p_clk),
 
@@ -168,6 +196,17 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("sh-hspi.0", &mstp_clks[MSTP007]), /* HSPI0 */
 	CLKDEV_DEV_ID("sh-hspi.1", &mstp_clks[MSTP007]), /* HSPI1 */
 	CLKDEV_DEV_ID("sh-hspi.2", &mstp_clks[MSTP007]), /* HSPI2 */
+	CLKDEV_DEV_ID("rcar_sound", &mstp_clks[MSTP008]), /* SRU */
+
+	CLKDEV_ICK_ID("ssi.0", "rcar_sound", &mstp_clks[MSTP012]),
+	CLKDEV_ICK_ID("ssi.1", "rcar_sound", &mstp_clks[MSTP011]),
+	CLKDEV_ICK_ID("ssi.2", "rcar_sound", &mstp_clks[MSTP010]),
+	CLKDEV_ICK_ID("ssi.3", "rcar_sound", &mstp_clks[MSTP009]),
+	CLKDEV_ICK_ID("ssi.4", "rcar_sound", &mstp_clks[MSTP311]),
+	CLKDEV_ICK_ID("ssi.5", "rcar_sound", &mstp_clks[MSTP310]),
+	CLKDEV_ICK_ID("ssi.6", "rcar_sound", &mstp_clks[MSTP309]),
+	CLKDEV_ICK_ID("ssi.7", "rcar_sound", &mstp_clks[MSTP308]),
+	CLKDEV_ICK_ID("ssi.8", "rcar_sound", &mstp_clks[MSTP307]),
 };
 
 void __init r8a7778_clock_init(void)
-- 
cgit 


From eb8417aa703eff5ff43d0275f19b0a8e591d818d Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 16 Sep 2013 09:23:02 +0200
Subject: perf/x86/intel: Remove division from the intel_pmu_drain_pebs_nhm()
 hot path

Only do the division in case we have to print the result out in a warning.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-43nl31erfbajwpfj254f6zji@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/cpu/perf_event_intel_ds.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c
index f364c13ddaa6..655d591b57a0 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_ds.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c
@@ -944,7 +944,7 @@ static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs)
 	struct perf_event *event = NULL;
 	void *at, *top;
 	u64 status = 0;
-	int bit, n;
+	int bit;
 
 	if (!x86_pmu.pebs_active)
 		return;
@@ -954,16 +954,16 @@ static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs)
 
 	ds->pebs_index = ds->pebs_buffer_base;
 
-	n = (top - at) / x86_pmu.pebs_record_size;
-	if (n <= 0)
+	if (unlikely(at > top))
 		return;
 
 	/*
 	 * Should not happen, we program the threshold at 1 and do not
 	 * set a reset value.
 	 */
-	WARN_ONCE(n > x86_pmu.max_pebs_events,
-		  "Unexpected number of pebs records %d\n", n);
+	WARN_ONCE(top - at > x86_pmu.max_pebs_events * x86_pmu.pebs_record_size,
+		  "Unexpected number of pebs records %ld\n",
+		  (top - at) / x86_pmu.pebs_record_size);
 
 	for (; at < top; at += x86_pmu.pebs_record_size) {
 		struct pebs_record_nhm *p = at;
-- 
cgit 


From 9e84f653ac16b718dd2305abe64a29bb3428621e Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Thu, 19 Sep 2013 09:44:09 +0200
Subject: ath10k: fix tracing build for ath10k_wmi_cmd

Commit be8b394390 ("ath10k: make WMI commands block by design") broke
the build if CONFIG_ATH10K_TRACING was enabled.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/trace.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/trace.h b/drivers/net/wireless/ath/ath10k/trace.h
index fd53130376c8..90817ddc92ba 100644
--- a/drivers/net/wireless/ath/ath10k/trace.h
+++ b/drivers/net/wireless/ath/ath10k/trace.h
@@ -119,7 +119,7 @@ TRACE_EVENT(ath10k_wmi_cmd,
 		__field(unsigned int, id)
 		__field(size_t, buf_len)
 		__dynamic_array(u8, buf, buf_len)
-		__field(int ret)
+		__field(int, ret)
 	),
 
 	TP_fast_assign(
-- 
cgit 


From 1073ab2e9b0d45f318052a3f3690405fc04eda75 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Wed, 18 Sep 2013 15:22:17 +0200
Subject: ath10k: fix num_sends_allowed replenishing

Commit e9bb0aa39 ("ath10k: delete struct ce_sendlist") broke
num_sends_allowed incrementing. num_sends_allowed
exceeded initial values and could overflow.

This code was supposed to replenish
num_sends_allowed for partial sendlist items (i.e.
before final sendlist item from a sendlist was
completed and could be processed by completion
handlers).

Fortunately it seems it did not cause any major breakage,
yet.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index f1faf4691f91..dff23d97bed0 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -626,10 +626,6 @@ static void ath10k_pci_ce_send_done(struct ath10k_ce_pipe *ce_state)
 	while (ath10k_ce_completed_send_next(ce_state, &transfer_context,
 					     &ce_data, &nbytes,
 					     &transfer_id) == 0) {
-		spin_lock_bh(&pipe_info->pipe_lock);
-		pipe_info->num_sends_allowed++;
-		spin_unlock_bh(&pipe_info->pipe_lock);
-
 		compl = get_free_compl(pipe_info);
 		if (!compl)
 			break;
-- 
cgit 


From 0945baf7d4245b79e01c2a790186c41fb4b27dd2 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Wed, 18 Sep 2013 14:43:18 +0200
Subject: ath10k: use num_pending_tx instead of msdu id bitmap

It's more efficient to simply check num_pending_tx
value instead of traversing whole bitmap of
msdu ids.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c  | 3 +--
 drivers/net/wireless/ath/ath10k/txrx.c | 2 +-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 11aa13e7587f..5a56833c4907 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2853,8 +2853,7 @@ static void ath10k_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
 			bool empty;
 
 			spin_lock_bh(&ar->htt.tx_lock);
-			empty = bitmap_empty(ar->htt.used_msdu_ids,
-					     ar->htt.max_num_pending_tx);
+			empty = (ar->htt.num_pending_tx == 0);
 			spin_unlock_bh(&ar->htt.tx_lock);
 
 			skip = (ar->state == ATH10K_STATE_WEDGED);
diff --git a/drivers/net/wireless/ath/ath10k/txrx.c b/drivers/net/wireless/ath/ath10k/txrx.c
index 68b6faefd1d8..37b819675d20 100644
--- a/drivers/net/wireless/ath/ath10k/txrx.c
+++ b/drivers/net/wireless/ath/ath10k/txrx.c
@@ -96,7 +96,7 @@ exit:
 	htt->pending_tx[ATH10K_SKB_CB(txdesc)->htt.msdu_id] = NULL;
 	ath10k_htt_tx_free_msdu_id(htt, ATH10K_SKB_CB(txdesc)->htt.msdu_id);
 	__ath10k_htt_tx_dec_pending(htt);
-	if (bitmap_empty(htt->used_msdu_ids, htt->max_num_pending_tx))
+	if (htt->num_pending_tx == 0)
 		wake_up(&htt->empty_tx_wq);
 	spin_unlock_bh(&htt->tx_lock);
 
-- 
cgit 


From 27bb178dae7b8165ffe7028fbd6f616fb7157c6d Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Wed, 18 Sep 2013 14:43:19 +0200
Subject: ath10k: avoid needless memset on TX path

This reduces number of memory accesses and
hopefully contributes to better performance in the
future.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htc.c    | 2 +-
 drivers/net/wireless/ath/ath10k/htt_tx.c | 4 +++-
 drivers/net/wireless/ath/ath10k/mac.c    | 4 +++-
 drivers/net/wireless/ath/ath10k/txrx.c   | 1 -
 4 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htc.c b/drivers/net/wireless/ath/ath10k/htc.c
index d0d72125df81..3118d7506734 100644
--- a/drivers/net/wireless/ath/ath10k/htc.c
+++ b/drivers/net/wireless/ath/ath10k/htc.c
@@ -103,10 +103,10 @@ static void ath10k_htc_prepare_tx_skb(struct ath10k_htc_ep *ep,
 	struct ath10k_htc_hdr *hdr;
 
 	hdr = (struct ath10k_htc_hdr *)skb->data;
-	memset(hdr, 0, sizeof(*hdr));
 
 	hdr->eid = ep->eid;
 	hdr->len = __cpu_to_le16(skb->len - sizeof(*hdr));
+	hdr->flags = 0;
 
 	spin_lock_bh(&ep->htc->tx_lock);
 	hdr->seq_no = ep->seq_no++;
diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c
index 454812879604..c4bbf74815f4 100644
--- a/drivers/net/wireless/ath/ath10k/htt_tx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_tx.c
@@ -384,9 +384,11 @@ int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 	/* refcount is decremented by HTC and HTT completions until it reaches
 	 * zero and is freed */
 	skb_cb = ATH10K_SKB_CB(txdesc);
+	skb_cb->htt.is_conf = false;
 	skb_cb->htt.msdu_id = msdu_id;
 	skb_cb->htt.refcount = 2;
 	skb_cb->htt.msdu = msdu;
+	skb_cb->htt.txfrag = NULL;
 
 	res = ath10k_htc_send(&htt->ar->htc, htt->eid, txdesc);
 	if (res)
@@ -505,7 +507,6 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 
 	skb_put(txdesc, desc_len);
 	cmd = (struct htt_cmd *)txdesc->data;
-	memset(cmd, 0, desc_len);
 
 	tid = ATH10K_SKB_CB(msdu)->htt.tid;
 
@@ -555,6 +556,7 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 	/* refcount is decremented by HTC and HTT completions until it reaches
 	 * zero and is freed */
 	skb_cb = ATH10K_SKB_CB(txdesc);
+	skb_cb->htt.is_conf = false;
 	skb_cb->htt.msdu_id = msdu_id;
 	skb_cb->htt.refcount = 2;
 	skb_cb->htt.txfrag = txfrag;
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 5a56833c4907..0d367e46ba9a 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1757,7 +1757,9 @@ static void ath10k_tx(struct ieee80211_hw *hw,
 		ath10k_tx_h_seq_no(skb);
 	}
 
-	memset(ATH10K_SKB_CB(skb), 0, sizeof(*ATH10K_SKB_CB(skb)));
+	ATH10K_SKB_CB(skb)->is_mapped = false;
+	ATH10K_SKB_CB(skb)->is_aborted = false;
+	ATH10K_SKB_CB(skb)->htt.is_offchan = false;
 	ATH10K_SKB_CB(skb)->htt.vdev_id = vdev_id;
 	ATH10K_SKB_CB(skb)->htt.tid = tid;
 
diff --git a/drivers/net/wireless/ath/ath10k/txrx.c b/drivers/net/wireless/ath/ath10k/txrx.c
index 37b819675d20..f6fed31ac545 100644
--- a/drivers/net/wireless/ath/ath10k/txrx.c
+++ b/drivers/net/wireless/ath/ath10k/txrx.c
@@ -75,7 +75,6 @@ void ath10k_txrx_tx_unref(struct ath10k_htt *htt, struct sk_buff *txdesc)
 	ath10k_report_offchan_tx(htt->ar, msdu);
 
 	info = IEEE80211_SKB_CB(msdu);
-	memset(&info->status, 0, sizeof(info->status));
 
 	if (ATH10K_SKB_CB(txdesc)->htt.discard) {
 		ieee80211_free_txskb(htt->ar->hw, msdu);
-- 
cgit 


From 0a89f8a01d0b28ca646f3aae9ffe1a7fc9d5b266 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Wed, 18 Sep 2013 14:43:20 +0200
Subject: ath10k: decouple HTT TX completions

Until now the all MSDU transfer related structures
were freed when all resources were unreferenced.

Now HTC transfer is freed independently and HTT
transfer is so too.

This yields a way more simpler ath10k_skb_cb and
should possibly enable parallel pipe processing
(which is now serialized in
ath10k_pci_process_ce routine).

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.h   |  8 ----
 drivers/net/wireless/ath/ath10k/htt_rx.c |  4 +-
 drivers/net/wireless/ath/ath10k/htt_tx.c | 64 ++++----------------------------
 drivers/net/wireless/ath/ath10k/mac.c    |  2 -
 drivers/net/wireless/ath/ath10k/txrx.c   | 52 ++++++++------------------
 drivers/net/wireless/ath/ath10k/txrx.h   |  5 +--
 6 files changed, 27 insertions(+), 108 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index fcf94ee8fb62..4563f800a291 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -52,18 +52,10 @@ struct ath10k_skb_cb {
 
 	struct {
 		u8 vdev_id;
-		u16 msdu_id;
 		u8 tid;
 		bool is_offchan;
-		bool is_conf;
-		bool discard;
-		bool no_ack;
-		u8 refcount;
 		struct sk_buff *txfrag;
-		struct sk_buff *msdu;
 	} __packed htt;
-
-	/* 4 bytes left on 64bit arch */
 } __packed;
 
 static inline struct ath10k_skb_cb *ATH10K_SKB_CB(struct sk_buff *skb)
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index a39fbf4536c0..62ea9c8f80c4 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -1140,7 +1140,7 @@ void ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb)
 			break;
 		}
 
-		ath10k_txrx_tx_completed(htt, &tx_done);
+		ath10k_txrx_tx_unref(htt, &tx_done);
 		break;
 	}
 	case HTT_T2H_MSG_TYPE_TX_COMPL_IND: {
@@ -1174,7 +1174,7 @@ void ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb)
 		for (i = 0; i < resp->data_tx_completion.num_msdus; i++) {
 			msdu_id = resp->data_tx_completion.msdus[i];
 			tx_done.msdu_id = __le16_to_cpu(msdu_id);
-			ath10k_txrx_tx_completed(htt, &tx_done);
+			ath10k_txrx_tx_unref(htt, &tx_done);
 		}
 		break;
 	}
diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c
index c4bbf74815f4..06946d2191aa 100644
--- a/drivers/net/wireless/ath/ath10k/htt_tx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_tx.c
@@ -117,7 +117,7 @@ int ath10k_htt_tx_attach(struct ath10k_htt *htt)
 
 static void ath10k_htt_tx_cleanup_pending(struct ath10k_htt *htt)
 {
-	struct sk_buff *txdesc;
+	struct htt_tx_done tx_done = {0};
 	int msdu_id;
 
 	/* No locks needed. Called after communication with the device has
@@ -127,18 +127,13 @@ static void ath10k_htt_tx_cleanup_pending(struct ath10k_htt *htt)
 		if (!test_bit(msdu_id, htt->used_msdu_ids))
 			continue;
 
-		txdesc = htt->pending_tx[msdu_id];
-		if (!txdesc)
-			continue;
-
 		ath10k_dbg(ATH10K_DBG_HTT, "force cleanup msdu_id %hu\n",
 			   msdu_id);
 
-		if (ATH10K_SKB_CB(txdesc)->htt.refcount > 0)
-			ATH10K_SKB_CB(txdesc)->htt.refcount = 1;
+		tx_done.discard = 1;
+		tx_done.msdu_id = msdu_id;
 
-		ATH10K_SKB_CB(txdesc)->htt.discard = true;
-		ath10k_txrx_tx_unref(htt, txdesc);
+		ath10k_txrx_tx_unref(htt, &tx_done);
 	}
 }
 
@@ -152,26 +147,7 @@ void ath10k_htt_tx_detach(struct ath10k_htt *htt)
 
 void ath10k_htt_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb)
 {
-	struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(skb);
-	struct ath10k_htt *htt = &ar->htt;
-
-	if (skb_cb->htt.is_conf) {
-		dev_kfree_skb_any(skb);
-		return;
-	}
-
-	if (skb_cb->is_aborted) {
-		skb_cb->htt.discard = true;
-
-		/* if the skbuff is aborted we need to make sure we'll free up
-		 * the tx resources, we can't simply run tx_unref() 2 times
-		 * because if htt tx completion came in earlier we'd access
-		 * unallocated memory */
-		if (skb_cb->htt.refcount > 1)
-			skb_cb->htt.refcount = 1;
-	}
-
-	ath10k_txrx_tx_unref(htt, skb);
+	dev_kfree_skb_any(skb);
 }
 
 int ath10k_htt_h2t_ver_req_msg(struct ath10k_htt *htt)
@@ -192,8 +168,6 @@ int ath10k_htt_h2t_ver_req_msg(struct ath10k_htt *htt)
 	cmd = (struct htt_cmd *)skb->data;
 	cmd->hdr.msg_type = HTT_H2T_MSG_TYPE_VERSION_REQ;
 
-	ATH10K_SKB_CB(skb)->htt.is_conf = true;
-
 	ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb);
 	if (ret) {
 		dev_kfree_skb_any(skb);
@@ -233,8 +207,6 @@ int ath10k_htt_h2t_stats_req(struct ath10k_htt *htt, u8 mask, u64 cookie)
 	req->cookie_lsb = cpu_to_le32(cookie & 0xffffffff);
 	req->cookie_msb = cpu_to_le32((cookie & 0xffffffff00000000ULL) >> 32);
 
-	ATH10K_SKB_CB(skb)->htt.is_conf = true;
-
 	ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb);
 	if (ret) {
 		ath10k_warn("failed to send htt type stats request: %d", ret);
@@ -321,8 +293,6 @@ int ath10k_htt_send_rx_ring_cfg_ll(struct ath10k_htt *htt)
 
 #undef desc_offset
 
-	ATH10K_SKB_CB(skb)->htt.is_conf = true;
-
 	ret = ath10k_htc_send(&htt->ar->htc, htt->eid, skb);
 	if (ret) {
 		dev_kfree_skb_any(skb);
@@ -335,7 +305,6 @@ int ath10k_htt_send_rx_ring_cfg_ll(struct ath10k_htt *htt)
 int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 {
 	struct device *dev = htt->ar->dev;
-	struct ath10k_skb_cb *skb_cb;
 	struct sk_buff *txdesc = NULL;
 	struct htt_cmd *cmd;
 	u8 vdev_id = ATH10K_SKB_CB(msdu)->htt.vdev_id;
@@ -364,7 +333,7 @@ int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 		res = msdu_id;
 		goto err;
 	}
-	htt->pending_tx[msdu_id] = txdesc;
+	htt->pending_tx[msdu_id] = msdu;
 	spin_unlock_bh(&htt->tx_lock);
 
 	res = ath10k_skb_map(dev, msdu);
@@ -381,15 +350,6 @@ int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 	memcpy(cmd->mgmt_tx.hdr, msdu->data,
 	       min_t(int, msdu->len, HTT_MGMT_FRM_HDR_DOWNLOAD_LEN));
 
-	/* refcount is decremented by HTC and HTT completions until it reaches
-	 * zero and is freed */
-	skb_cb = ATH10K_SKB_CB(txdesc);
-	skb_cb->htt.is_conf = false;
-	skb_cb->htt.msdu_id = msdu_id;
-	skb_cb->htt.refcount = 2;
-	skb_cb->htt.msdu = msdu;
-	skb_cb->htt.txfrag = NULL;
-
 	res = ath10k_htc_send(&htt->ar->htc, htt->eid, txdesc);
 	if (res)
 		goto err;
@@ -417,7 +377,6 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 	struct htt_cmd *cmd;
 	struct htt_data_tx_desc_frag *tx_frags;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)msdu->data;
-	struct ath10k_skb_cb *skb_cb;
 	struct sk_buff *txdesc = NULL;
 	struct sk_buff *txfrag = NULL;
 	u8 vdev_id = ATH10K_SKB_CB(msdu)->htt.vdev_id;
@@ -470,7 +429,7 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 		res = msdu_id;
 		goto err;
 	}
-	htt->pending_tx[msdu_id] = txdesc;
+	htt->pending_tx[msdu_id] = msdu;
 	spin_unlock_bh(&htt->tx_lock);
 
 	res = ath10k_skb_map(dev, msdu);
@@ -553,15 +512,6 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 
 	memcpy(cmd->data_tx.prefetch, msdu->data, prefetch_len);
 
-	/* refcount is decremented by HTC and HTT completions until it reaches
-	 * zero and is freed */
-	skb_cb = ATH10K_SKB_CB(txdesc);
-	skb_cb->htt.is_conf = false;
-	skb_cb->htt.msdu_id = msdu_id;
-	skb_cb->htt.refcount = 2;
-	skb_cb->htt.txfrag = txfrag;
-	skb_cb->htt.msdu = msdu;
-
 	res = ath10k_htc_send(&htt->ar->htc, htt->eid, txdesc);
 	if (res)
 		goto err;
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 0d367e46ba9a..9112e6d6f75c 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1757,8 +1757,6 @@ static void ath10k_tx(struct ieee80211_hw *hw,
 		ath10k_tx_h_seq_no(skb);
 	}
 
-	ATH10K_SKB_CB(skb)->is_mapped = false;
-	ATH10K_SKB_CB(skb)->is_aborted = false;
 	ATH10K_SKB_CB(skb)->htt.is_offchan = false;
 	ATH10K_SKB_CB(skb)->htt.vdev_id = vdev_id;
 	ATH10K_SKB_CB(skb)->htt.tid = tid;
diff --git a/drivers/net/wireless/ath/ath10k/txrx.c b/drivers/net/wireless/ath/ath10k/txrx.c
index f6fed31ac545..15395afae957 100644
--- a/drivers/net/wireless/ath/ath10k/txrx.c
+++ b/drivers/net/wireless/ath/ath10k/txrx.c
@@ -44,21 +44,25 @@ out:
 	spin_unlock_bh(&ar->data_lock);
 }
 
-void ath10k_txrx_tx_unref(struct ath10k_htt *htt, struct sk_buff *txdesc)
+void ath10k_txrx_tx_unref(struct ath10k_htt *htt,
+			  const struct htt_tx_done *tx_done)
 {
 	struct device *dev = htt->ar->dev;
 	struct ieee80211_tx_info *info;
-	struct sk_buff *txfrag = ATH10K_SKB_CB(txdesc)->htt.txfrag;
-	struct sk_buff *msdu = ATH10K_SKB_CB(txdesc)->htt.msdu;
+	struct sk_buff *msdu, *txfrag;
 	int ret;
 
-	if (ATH10K_SKB_CB(txdesc)->htt.refcount == 0)
-		return;
-
-	ATH10K_SKB_CB(txdesc)->htt.refcount--;
+	ath10k_dbg(ATH10K_DBG_HTT, "htt tx completion msdu_id %u discard %d no_ack %d\n",
+		   tx_done->msdu_id, !!tx_done->discard, !!tx_done->no_ack);
 
-	if (ATH10K_SKB_CB(txdesc)->htt.refcount > 0)
+	if (tx_done->msdu_id >= htt->max_num_pending_tx) {
+		ath10k_warn("warning: msdu_id %d too big, ignoring\n",
+			    tx_done->msdu_id);
 		return;
+	}
+
+	msdu = htt->pending_tx[tx_done->msdu_id];
+	txfrag = ATH10K_SKB_CB(msdu)->htt.txfrag;
 
 	if (txfrag) {
 		ret = ath10k_skb_unmap(dev, txfrag);
@@ -76,7 +80,7 @@ void ath10k_txrx_tx_unref(struct ath10k_htt *htt, struct sk_buff *txdesc)
 
 	info = IEEE80211_SKB_CB(msdu);
 
-	if (ATH10K_SKB_CB(txdesc)->htt.discard) {
+	if (tx_done->discard) {
 		ieee80211_free_txskb(htt->ar->hw, msdu);
 		goto exit;
 	}
@@ -84,7 +88,7 @@ void ath10k_txrx_tx_unref(struct ath10k_htt *htt, struct sk_buff *txdesc)
 	if (!(info->flags & IEEE80211_TX_CTL_NO_ACK))
 		info->flags |= IEEE80211_TX_STAT_ACK;
 
-	if (ATH10K_SKB_CB(txdesc)->htt.no_ack)
+	if (tx_done->no_ack)
 		info->flags &= ~IEEE80211_TX_STAT_ACK;
 
 	ieee80211_tx_status(htt->ar->hw, msdu);
@@ -92,36 +96,12 @@ void ath10k_txrx_tx_unref(struct ath10k_htt *htt, struct sk_buff *txdesc)
 
 exit:
 	spin_lock_bh(&htt->tx_lock);
-	htt->pending_tx[ATH10K_SKB_CB(txdesc)->htt.msdu_id] = NULL;
-	ath10k_htt_tx_free_msdu_id(htt, ATH10K_SKB_CB(txdesc)->htt.msdu_id);
+	htt->pending_tx[tx_done->msdu_id] = NULL;
+	ath10k_htt_tx_free_msdu_id(htt, tx_done->msdu_id);
 	__ath10k_htt_tx_dec_pending(htt);
 	if (htt->num_pending_tx == 0)
 		wake_up(&htt->empty_tx_wq);
 	spin_unlock_bh(&htt->tx_lock);
-
-	dev_kfree_skb_any(txdesc);
-}
-
-void ath10k_txrx_tx_completed(struct ath10k_htt *htt,
-			      const struct htt_tx_done *tx_done)
-{
-	struct sk_buff *txdesc;
-
-	ath10k_dbg(ATH10K_DBG_HTT, "htt tx completion msdu_id %u discard %d no_ack %d\n",
-		   tx_done->msdu_id, !!tx_done->discard, !!tx_done->no_ack);
-
-	if (tx_done->msdu_id >= htt->max_num_pending_tx) {
-		ath10k_warn("warning: msdu_id %d too big, ignoring\n",
-			    tx_done->msdu_id);
-		return;
-	}
-
-	txdesc = htt->pending_tx[tx_done->msdu_id];
-
-	ATH10K_SKB_CB(txdesc)->htt.discard = tx_done->discard;
-	ATH10K_SKB_CB(txdesc)->htt.no_ack = tx_done->no_ack;
-
-	ath10k_txrx_tx_unref(htt, txdesc);
 }
 
 static const u8 rx_legacy_rate_idx[] = {
diff --git a/drivers/net/wireless/ath/ath10k/txrx.h b/drivers/net/wireless/ath/ath10k/txrx.h
index e78632a76df7..356dc9c04c9e 100644
--- a/drivers/net/wireless/ath/ath10k/txrx.h
+++ b/drivers/net/wireless/ath/ath10k/txrx.h
@@ -19,9 +19,8 @@
 
 #include "htt.h"
 
-void ath10k_txrx_tx_unref(struct ath10k_htt *htt, struct sk_buff *txdesc);
-void ath10k_txrx_tx_completed(struct ath10k_htt *htt,
-			      const struct htt_tx_done *tx_done);
+void ath10k_txrx_tx_unref(struct ath10k_htt *htt,
+			  const struct htt_tx_done *tx_done);
 void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info);
 
 struct ath10k_peer *ath10k_peer_find(struct ath10k *ar, int vdev_id,
-- 
cgit 


From 2f3773bcaf9fbf3ddb9d4315e3a3ca5e4b376cef Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Wed, 18 Sep 2013 14:43:21 +0200
Subject: ath10k: cleanup HTT TX functions

Use a saner goto scheme for failure handling. Also
group operations more sensibly.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt_tx.c | 141 +++++++++++++++----------------
 1 file changed, 68 insertions(+), 73 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c
index 06946d2191aa..5e738d80138f 100644
--- a/drivers/net/wireless/ath/ath10k/htt_tx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_tx.c
@@ -315,30 +315,30 @@ int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 
 	res = ath10k_htt_tx_inc_pending(htt);
 	if (res)
-		return res;
+		goto err;
 
 	len += sizeof(cmd->hdr);
 	len += sizeof(cmd->mgmt_tx);
 
-	txdesc = ath10k_htc_alloc_skb(len);
-	if (!txdesc) {
-		res = -ENOMEM;
-		goto err;
-	}
-
 	spin_lock_bh(&htt->tx_lock);
-	msdu_id = ath10k_htt_tx_alloc_msdu_id(htt);
-	if (msdu_id < 0) {
+	res = ath10k_htt_tx_alloc_msdu_id(htt);
+	if (res < 0) {
 		spin_unlock_bh(&htt->tx_lock);
-		res = msdu_id;
-		goto err;
+		goto err_tx_dec;
 	}
+	msdu_id = res;
 	htt->pending_tx[msdu_id] = msdu;
 	spin_unlock_bh(&htt->tx_lock);
 
+	txdesc = ath10k_htc_alloc_skb(len);
+	if (!txdesc) {
+		res = -ENOMEM;
+		goto err_free_msdu_id;
+	}
+
 	res = ath10k_skb_map(dev, msdu);
 	if (res)
-		goto err;
+		goto err_free_txdesc;
 
 	skb_put(txdesc, len);
 	cmd = (struct htt_cmd *)txdesc->data;
@@ -352,22 +352,22 @@ int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 
 	res = ath10k_htc_send(&htt->ar->htc, htt->eid, txdesc);
 	if (res)
-		goto err;
+		goto err_unmap_msdu;
 
 	return 0;
 
-err:
+err_unmap_msdu:
 	ath10k_skb_unmap(dev, msdu);
-
-	if (txdesc)
-		dev_kfree_skb_any(txdesc);
-	if (msdu_id >= 0) {
-		spin_lock_bh(&htt->tx_lock);
-		htt->pending_tx[msdu_id] = NULL;
-		ath10k_htt_tx_free_msdu_id(htt, msdu_id);
-		spin_unlock_bh(&htt->tx_lock);
-	}
+err_free_txdesc:
+	dev_kfree_skb_any(txdesc);
+err_free_msdu_id:
+	spin_lock_bh(&htt->tx_lock);
+	htt->pending_tx[msdu_id] = NULL;
+	ath10k_htt_tx_free_msdu_id(htt, msdu_id);
+	spin_unlock_bh(&htt->tx_lock);
+err_tx_dec:
 	ath10k_htt_tx_dec_pending(htt);
+err:
 	return res;
 }
 
@@ -379,6 +379,7 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)msdu->data;
 	struct sk_buff *txdesc = NULL;
 	struct sk_buff *txfrag = NULL;
+	bool use_frags;
 	u8 vdev_id = ATH10K_SKB_CB(msdu)->htt.vdev_id;
 	u8 tid;
 	int prefetch_len, desc_len, frag_len;
@@ -390,7 +391,17 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 
 	res = ath10k_htt_tx_inc_pending(htt);
 	if (res)
-		return res;
+		goto err;
+
+	spin_lock_bh(&htt->tx_lock);
+	res = ath10k_htt_tx_alloc_msdu_id(htt);
+	if (res < 0) {
+		spin_unlock_bh(&htt->tx_lock);
+		goto err_tx_dec;
+	}
+	msdu_id = res;
+	htt->pending_tx[msdu_id] = msdu;
+	spin_unlock_bh(&htt->tx_lock);
 
 	prefetch_len = min(htt->prefetch_len, msdu->len);
 	prefetch_len = roundup(prefetch_len, 4);
@@ -401,46 +412,34 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 	txdesc = ath10k_htc_alloc_skb(desc_len);
 	if (!txdesc) {
 		res = -ENOMEM;
-		goto err;
+		goto err_free_msdu_id;
 	}
 
 	/* Since HTT 3.0 there is no separate mgmt tx command. However in case
 	 * of mgmt tx using TX_FRM there is not tx fragment list. Instead of tx
 	 * fragment list host driver specifies directly frame pointer. */
-	if (htt->target_version_major < 3 ||
-	    !ieee80211_is_mgmt(hdr->frame_control)) {
+	use_frags = htt->target_version_major < 3 ||
+		    !ieee80211_is_mgmt(hdr->frame_control);
+
+	if (use_frags) {
 		txfrag = dev_alloc_skb(frag_len);
 		if (!txfrag) {
 			res = -ENOMEM;
-			goto err;
+			goto err_free_txdesc;
 		}
 	}
 
 	if (!IS_ALIGNED((unsigned long)txdesc->data, 4)) {
 		ath10k_warn("htt alignment check failed. dropping packet.\n");
 		res = -EIO;
-		goto err;
+		goto err_free_txfrag;
 	}
 
-	spin_lock_bh(&htt->tx_lock);
-	msdu_id = ath10k_htt_tx_alloc_msdu_id(htt);
-	if (msdu_id < 0) {
-		spin_unlock_bh(&htt->tx_lock);
-		res = msdu_id;
-		goto err;
-	}
-	htt->pending_tx[msdu_id] = msdu;
-	spin_unlock_bh(&htt->tx_lock);
-
 	res = ath10k_skb_map(dev, msdu);
 	if (res)
-		goto err;
+		goto err_free_txfrag;
 
-	/* Since HTT 3.0 there is no separate mgmt tx command. However in case
-	 * of mgmt tx using TX_FRM there is not tx fragment list. Instead of tx
-	 * fragment list host driver specifies directly frame pointer. */
-	if (htt->target_version_major < 3 ||
-	    !ieee80211_is_mgmt(hdr->frame_control)) {
+	if (use_frags) {
 		/* tx fragment list must be terminated with zero-entry */
 		skb_put(txfrag, frag_len);
 		tx_frags = (struct htt_data_tx_desc_frag *)txfrag->data;
@@ -451,7 +450,7 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 
 		res = ath10k_skb_map(dev, txfrag);
 		if (res)
-			goto err;
+			goto err_unmap_msdu;
 
 		ath10k_dbg(ATH10K_DBG_HTT, "txfrag 0x%llx\n",
 			   (unsigned long long) ATH10K_SKB_CB(txfrag)->paddr);
@@ -476,15 +475,11 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 		flags0 |= HTT_DATA_TX_DESC_FLAGS0_NO_ENCRYPT;
 	flags0 |= HTT_DATA_TX_DESC_FLAGS0_MAC_HDR_PRESENT;
 
-	/* Since HTT 3.0 there is no separate mgmt tx command. However in case
-	 * of mgmt tx using TX_FRM there is not tx fragment list. Instead of tx
-	 * fragment list host driver specifies directly frame pointer. */
-	if (htt->target_version_major >= 3 &&
-	    ieee80211_is_mgmt(hdr->frame_control))
-		flags0 |= SM(ATH10K_HW_TXRX_MGMT,
+	if (use_frags)
+		flags0 |= SM(ATH10K_HW_TXRX_NATIVE_WIFI,
 			     HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE);
 	else
-		flags0 |= SM(ATH10K_HW_TXRX_NATIVE_WIFI,
+		flags0 |= SM(ATH10K_HW_TXRX_MGMT,
 			     HTT_DATA_TX_DESC_FLAGS0_PKT_TYPE);
 
 	flags1  = 0;
@@ -493,14 +488,10 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 	flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L3_OFFLOAD;
 	flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L4_OFFLOAD;
 
-	/* Since HTT 3.0 there is no separate mgmt tx command. However in case
-	 * of mgmt tx using TX_FRM there is not tx fragment list. Instead of tx
-	 * fragment list host driver specifies directly frame pointer. */
-	if (htt->target_version_major >= 3 &&
-	    ieee80211_is_mgmt(hdr->frame_control))
-		frags_paddr = ATH10K_SKB_CB(msdu)->paddr;
-	else
+	if (use_frags)
 		frags_paddr = ATH10K_SKB_CB(txfrag)->paddr;
+	else
+		frags_paddr = ATH10K_SKB_CB(msdu)->paddr;
 
 	cmd->hdr.msg_type        = HTT_H2T_MSG_TYPE_TX_FRM;
 	cmd->data_tx.flags0      = flags0;
@@ -514,23 +505,27 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 
 	res = ath10k_htc_send(&htt->ar->htc, htt->eid, txdesc);
 	if (res)
-		goto err;
+		goto err_restore;
 
 	return 0;
-err:
-	if (txfrag)
+
+err_restore:
+	if (use_frags)
 		ath10k_skb_unmap(dev, txfrag);
-	if (txdesc)
-		dev_kfree_skb_any(txdesc);
-	if (txfrag)
+err_unmap_msdu:
+	ath10k_skb_unmap(dev, msdu);
+err_free_txfrag:
+	if (use_frags)
 		dev_kfree_skb_any(txfrag);
-	if (msdu_id >= 0) {
-		spin_lock_bh(&htt->tx_lock);
-		htt->pending_tx[msdu_id] = NULL;
-		ath10k_htt_tx_free_msdu_id(htt, msdu_id);
-		spin_unlock_bh(&htt->tx_lock);
-	}
+err_free_txdesc:
+	dev_kfree_skb_any(txdesc);
+err_free_msdu_id:
+	spin_lock_bh(&htt->tx_lock);
+	htt->pending_tx[msdu_id] = NULL;
+	ath10k_htt_tx_free_msdu_id(htt, msdu_id);
+	spin_unlock_bh(&htt->tx_lock);
+err_tx_dec:
 	ath10k_htt_tx_dec_pending(htt);
-	ath10k_skb_unmap(dev, msdu);
+err:
 	return res;
 }
-- 
cgit 


From 1f8bb1518eee321d94477ca7bcbb153c47d43ba4 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Wed, 18 Sep 2013 14:43:22 +0200
Subject: ath10k: use msdu headroom to store txfrag

Instead of allocating sk_buff for a mere 16-byte
tx fragment list buffer use headroom of the
original msdu sk_buff.

This decreases CPU cache pressure and improves
performance.

Measured improvement on AP135 is 560mbps ->
590mbps of UDP TX briding traffic.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.h   |  4 +-
 drivers/net/wireless/ath/ath10k/htt_tx.c | 82 ++++++++++++++++----------------
 drivers/net/wireless/ath/ath10k/mac.c    |  4 ++
 drivers/net/wireless/ath/ath10k/txrx.c   | 16 +++----
 4 files changed, 53 insertions(+), 53 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 4563f800a291..292ad4577c98 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -54,7 +54,9 @@ struct ath10k_skb_cb {
 		u8 vdev_id;
 		u8 tid;
 		bool is_offchan;
-		struct sk_buff *txfrag;
+
+		u8 frag_len;
+		u8 pad_len;
 	} __packed htt;
 } __packed;
 
diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c
index 5e738d80138f..3b93c6a01c6c 100644
--- a/drivers/net/wireless/ath/ath10k/htt_tx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_tx.c
@@ -307,7 +307,8 @@ int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 	struct device *dev = htt->ar->dev;
 	struct sk_buff *txdesc = NULL;
 	struct htt_cmd *cmd;
-	u8 vdev_id = ATH10K_SKB_CB(msdu)->htt.vdev_id;
+	struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(msdu);
+	u8 vdev_id = skb_cb->htt.vdev_id;
 	int len = 0;
 	int msdu_id = -1;
 	int res;
@@ -350,6 +351,9 @@ int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 	memcpy(cmd->mgmt_tx.hdr, msdu->data,
 	       min_t(int, msdu->len, HTT_MGMT_FRM_HDR_DOWNLOAD_LEN));
 
+	skb_cb->htt.frag_len = 0;
+	skb_cb->htt.pad_len = 0;
+
 	res = ath10k_htc_send(&htt->ar->htc, htt->eid, txdesc);
 	if (res)
 		goto err_unmap_msdu;
@@ -377,13 +381,12 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 	struct htt_cmd *cmd;
 	struct htt_data_tx_desc_frag *tx_frags;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)msdu->data;
+	struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(msdu);
 	struct sk_buff *txdesc = NULL;
-	struct sk_buff *txfrag = NULL;
 	bool use_frags;
 	u8 vdev_id = ATH10K_SKB_CB(msdu)->htt.vdev_id;
 	u8 tid;
-	int prefetch_len, desc_len, frag_len;
-	dma_addr_t frags_paddr;
+	int prefetch_len, desc_len;
 	int msdu_id = -1;
 	int res;
 	u8 flags0;
@@ -407,7 +410,6 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 	prefetch_len = roundup(prefetch_len, 4);
 
 	desc_len = sizeof(cmd->hdr) + sizeof(cmd->data_tx) + prefetch_len;
-	frag_len = sizeof(*tx_frags) * 2;
 
 	txdesc = ath10k_htc_alloc_skb(desc_len);
 	if (!txdesc) {
@@ -421,41 +423,44 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 	use_frags = htt->target_version_major < 3 ||
 		    !ieee80211_is_mgmt(hdr->frame_control);
 
-	if (use_frags) {
-		txfrag = dev_alloc_skb(frag_len);
-		if (!txfrag) {
-			res = -ENOMEM;
-			goto err_free_txdesc;
-		}
-	}
-
 	if (!IS_ALIGNED((unsigned long)txdesc->data, 4)) {
 		ath10k_warn("htt alignment check failed. dropping packet.\n");
 		res = -EIO;
-		goto err_free_txfrag;
+		goto err_free_txdesc;
+	}
+
+	if (use_frags) {
+		skb_cb->htt.frag_len = sizeof(*tx_frags) * 2;
+		skb_cb->htt.pad_len = (unsigned long)msdu->data -
+				      round_down((unsigned long)msdu->data, 4);
+
+		skb_push(msdu, skb_cb->htt.frag_len + skb_cb->htt.pad_len);
+	} else {
+		skb_cb->htt.frag_len = 0;
+		skb_cb->htt.pad_len = 0;
 	}
 
 	res = ath10k_skb_map(dev, msdu);
 	if (res)
-		goto err_free_txfrag;
+		goto err_pull_txfrag;
 
 	if (use_frags) {
+		dma_sync_single_for_cpu(dev, skb_cb->paddr, msdu->len,
+					DMA_TO_DEVICE);
+
 		/* tx fragment list must be terminated with zero-entry */
-		skb_put(txfrag, frag_len);
-		tx_frags = (struct htt_data_tx_desc_frag *)txfrag->data;
-		tx_frags[0].paddr = __cpu_to_le32(ATH10K_SKB_CB(msdu)->paddr);
-		tx_frags[0].len   = __cpu_to_le32(msdu->len);
+		tx_frags = (struct htt_data_tx_desc_frag *)msdu->data;
+		tx_frags[0].paddr = __cpu_to_le32(skb_cb->paddr +
+						  skb_cb->htt.frag_len +
+						  skb_cb->htt.pad_len);
+		tx_frags[0].len   = __cpu_to_le32(msdu->len -
+						  skb_cb->htt.frag_len -
+						  skb_cb->htt.pad_len);
 		tx_frags[1].paddr = __cpu_to_le32(0);
 		tx_frags[1].len   = __cpu_to_le32(0);
 
-		res = ath10k_skb_map(dev, txfrag);
-		if (res)
-			goto err_unmap_msdu;
-
-		ath10k_dbg(ATH10K_DBG_HTT, "txfrag 0x%llx\n",
-			   (unsigned long long) ATH10K_SKB_CB(txfrag)->paddr);
-		ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "txfrag: ",
-				txfrag->data, frag_len);
+		dma_sync_single_for_device(dev, skb_cb->paddr, msdu->len,
+					   DMA_TO_DEVICE);
 	}
 
 	ath10k_dbg(ATH10K_DBG_HTT, "msdu 0x%llx\n",
@@ -488,35 +493,28 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 	flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L3_OFFLOAD;
 	flags1 |= HTT_DATA_TX_DESC_FLAGS1_CKSUM_L4_OFFLOAD;
 
-	if (use_frags)
-		frags_paddr = ATH10K_SKB_CB(txfrag)->paddr;
-	else
-		frags_paddr = ATH10K_SKB_CB(msdu)->paddr;
-
 	cmd->hdr.msg_type        = HTT_H2T_MSG_TYPE_TX_FRM;
 	cmd->data_tx.flags0      = flags0;
 	cmd->data_tx.flags1      = __cpu_to_le16(flags1);
-	cmd->data_tx.len         = __cpu_to_le16(msdu->len);
+	cmd->data_tx.len         = __cpu_to_le16(msdu->len -
+						 skb_cb->htt.frag_len -
+						 skb_cb->htt.pad_len);
 	cmd->data_tx.id          = __cpu_to_le16(msdu_id);
-	cmd->data_tx.frags_paddr = __cpu_to_le32(frags_paddr);
+	cmd->data_tx.frags_paddr = __cpu_to_le32(skb_cb->paddr);
 	cmd->data_tx.peerid      = __cpu_to_le32(HTT_INVALID_PEERID);
 
-	memcpy(cmd->data_tx.prefetch, msdu->data, prefetch_len);
+	memcpy(cmd->data_tx.prefetch, hdr, prefetch_len);
 
 	res = ath10k_htc_send(&htt->ar->htc, htt->eid, txdesc);
 	if (res)
-		goto err_restore;
+		goto err_unmap_msdu;
 
 	return 0;
 
-err_restore:
-	if (use_frags)
-		ath10k_skb_unmap(dev, txfrag);
 err_unmap_msdu:
 	ath10k_skb_unmap(dev, msdu);
-err_free_txfrag:
-	if (use_frags)
-		dev_kfree_skb_any(txfrag);
+err_pull_txfrag:
+	skb_pull(msdu, skb_cb->htt.frag_len + skb_cb->htt.pad_len);
 err_free_txdesc:
 	dev_kfree_skb_any(txdesc);
 err_free_msdu_id:
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 9112e6d6f75c..99a9bad3f398 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -3342,6 +3342,10 @@ int ath10k_mac_register(struct ath10k *ar)
 			IEEE80211_HW_WANT_MONITOR_VIF |
 			IEEE80211_HW_AP_LINK_PS;
 
+	/* MSDU can have HTT TX fragment pushed in front. The additional 4
+	 * bytes is used for padding/alignment if necessary. */
+	ar->hw->extra_tx_headroom += sizeof(struct htt_data_tx_desc_frag)*2 + 4;
+
 	if (ar->ht_cap_info & WMI_HT_CAP_DYNAMIC_SMPS)
 		ar->hw->flags |= IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS;
 
diff --git a/drivers/net/wireless/ath/ath10k/txrx.c b/drivers/net/wireless/ath/ath10k/txrx.c
index 15395afae957..57931d0fae4b 100644
--- a/drivers/net/wireless/ath/ath10k/txrx.c
+++ b/drivers/net/wireless/ath/ath10k/txrx.c
@@ -49,7 +49,8 @@ void ath10k_txrx_tx_unref(struct ath10k_htt *htt,
 {
 	struct device *dev = htt->ar->dev;
 	struct ieee80211_tx_info *info;
-	struct sk_buff *msdu, *txfrag;
+	struct ath10k_skb_cb *skb_cb;
+	struct sk_buff *msdu;
 	int ret;
 
 	ath10k_dbg(ATH10K_DBG_HTT, "htt tx completion msdu_id %u discard %d no_ack %d\n",
@@ -62,20 +63,15 @@ void ath10k_txrx_tx_unref(struct ath10k_htt *htt,
 	}
 
 	msdu = htt->pending_tx[tx_done->msdu_id];
-	txfrag = ATH10K_SKB_CB(msdu)->htt.txfrag;
-
-	if (txfrag) {
-		ret = ath10k_skb_unmap(dev, txfrag);
-		if (ret)
-			ath10k_warn("txfrag unmap failed (%d)\n", ret);
-
-		dev_kfree_skb_any(txfrag);
-	}
+	skb_cb = ATH10K_SKB_CB(msdu);
 
 	ret = ath10k_skb_unmap(dev, msdu);
 	if (ret)
 		ath10k_warn("data skb unmap failed (%d)\n", ret);
 
+	if (skb_cb->htt.frag_len)
+		skb_pull(msdu, skb_cb->htt.frag_len + skb_cb->htt.pad_len);
+
 	ath10k_report_offchan_tx(htt->ar, msdu);
 
 	info = IEEE80211_SKB_CB(msdu);
-- 
cgit 


From d8e0ac0824cd0868ea73f186d6511d710b068044 Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Wed, 4 Sep 2013 20:29:25 +0900
Subject: gpiolib: factorize gpiod_get/set functions

gpiod_get/set functions share common code between their regular and
cansleep variants. The exporting of the gpiod interface will make
the situation worse. This patch factorizes the common code to avoid code
redundancy.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpiolib.c | 72 +++++++++++++++++++++++---------------------------
 1 file changed, 33 insertions(+), 39 deletions(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 8048c3dbb8ad..4fc28603a742 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1869,6 +1869,19 @@ EXPORT_SYMBOL_GPL(gpio_set_debounce);
  * that the GPIO was actually requested.
  */
 
+static int _gpiod_get_value(const struct gpio_desc *desc)
+{
+	struct gpio_chip	*chip;
+	int value;
+	int offset;
+
+	chip = desc->chip;
+	offset = gpio_chip_hwgpio(desc);
+	value = chip->get ? chip->get(chip, offset) : 0;
+	trace_gpio_value(desc_to_gpio(desc), 1, value);
+	return value;
+}
+
 /**
  * __gpio_get_value() - return a gpio's value
  * @gpio: gpio whose value will be returned
@@ -1880,19 +1893,11 @@ EXPORT_SYMBOL_GPL(gpio_set_debounce);
  */
 static int gpiod_get_value(const struct gpio_desc *desc)
 {
-	struct gpio_chip	*chip;
-	int value;
-	int offset;
-
 	if (!desc)
 		return 0;
-	chip = desc->chip;
-	offset = gpio_chip_hwgpio(desc);
 	/* Should be using gpio_get_value_cansleep() */
-	WARN_ON(chip->can_sleep);
-	value = chip->get ? chip->get(chip, offset) : 0;
-	trace_gpio_value(desc_to_gpio(desc), 1, value);
-	return value;
+	WARN_ON(desc->chip->can_sleep);
+	return _gpiod_get_value(desc);
 }
 
 int __gpio_get_value(unsigned gpio)
@@ -1957,6 +1962,20 @@ static void _gpio_set_open_source_value(struct gpio_desc *desc, int value)
 			  __func__, err);
 }
 
+static void _gpiod_set_value(struct gpio_desc *desc, int value)
+{
+	struct gpio_chip	*chip;
+
+	chip = desc->chip;
+	trace_gpio_value(desc_to_gpio(desc), 0, value);
+	if (test_bit(FLAG_OPEN_DRAIN, &desc->flags))
+		_gpio_set_open_drain_value(desc, value);
+	else if (test_bit(FLAG_OPEN_SOURCE, &desc->flags))
+		_gpio_set_open_source_value(desc, value);
+	else
+		chip->set(chip, gpio_chip_hwgpio(desc), value);
+}
+
 /**
  * __gpio_set_value() - assign a gpio's value
  * @gpio: gpio whose value will be assigned
@@ -1968,20 +1987,12 @@ static void _gpio_set_open_source_value(struct gpio_desc *desc, int value)
  */
 static void gpiod_set_value(struct gpio_desc *desc, int value)
 {
-	struct gpio_chip	*chip;
 
 	if (!desc)
 		return;
-	chip = desc->chip;
 	/* Should be using gpio_set_value_cansleep() */
-	WARN_ON(chip->can_sleep);
-	trace_gpio_value(desc_to_gpio(desc), 0, value);
-	if (test_bit(FLAG_OPEN_DRAIN, &desc->flags))
-		_gpio_set_open_drain_value(desc, value);
-	else if (test_bit(FLAG_OPEN_SOURCE, &desc->flags))
-		_gpio_set_open_source_value(desc, value);
-	else
-		chip->set(chip, gpio_chip_hwgpio(desc), value);
+	WARN_ON(desc->chip->can_sleep);
+	_gpiod_set_value(desc, value);
 }
 
 void __gpio_set_value(unsigned gpio, int value)
@@ -2046,18 +2057,10 @@ EXPORT_SYMBOL_GPL(__gpio_to_irq);
 
 static int gpiod_get_value_cansleep(const struct gpio_desc *desc)
 {
-	struct gpio_chip	*chip;
-	int value;
-	int offset;
-
 	might_sleep_if(extra_checks);
 	if (!desc)
 		return 0;
-	chip = desc->chip;
-	offset = gpio_chip_hwgpio(desc);
-	value = chip->get ? chip->get(chip, offset) : 0;
-	trace_gpio_value(desc_to_gpio(desc), 1, value);
-	return value;
+	return _gpiod_get_value(desc);
 }
 
 int gpio_get_value_cansleep(unsigned gpio)
@@ -2068,19 +2071,10 @@ EXPORT_SYMBOL_GPL(gpio_get_value_cansleep);
 
 static void gpiod_set_value_cansleep(struct gpio_desc *desc, int value)
 {
-	struct gpio_chip	*chip;
-
 	might_sleep_if(extra_checks);
 	if (!desc)
 		return;
-	chip = desc->chip;
-	trace_gpio_value(desc_to_gpio(desc), 0, value);
-	if (test_bit(FLAG_OPEN_DRAIN,  &desc->flags))
-		_gpio_set_open_drain_value(desc, value);
-	else if (test_bit(FLAG_OPEN_SOURCE,  &desc->flags))
-		_gpio_set_open_source_value(desc, value);
-	else
-		chip->set(chip, gpio_chip_hwgpio(desc), value);
+	_gpiod_set_value(desc, value);
 }
 
 void gpio_set_value_cansleep(unsigned gpio, int value)
-- 
cgit 


From 350d72f0edd8bbc56d3018112316e1f05a273a20 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 12:05:38 +0530
Subject: video: grvga: Use module_platform_driver

module_platform_driver removes some boilerplate code and makes
it simple.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Kristoffer Glembo <kristoffer@gaisler.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/grvga.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/video/grvga.c b/drivers/video/grvga.c
index 861109e7de1b..b95eee7d901e 100644
--- a/drivers/video/grvga.c
+++ b/drivers/video/grvga.c
@@ -557,19 +557,7 @@ static struct platform_driver grvga_driver = {
 	.remove		= grvga_remove,
 };
 
-
-static int __init grvga_init(void)
-{
-	return platform_driver_register(&grvga_driver);
-}
-
-static void __exit grvga_exit(void)
-{
-	platform_driver_unregister(&grvga_driver);
-}
-
-module_init(grvga_init);
-module_exit(grvga_exit);
+module_platform_driver(grvga_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Aeroflex Gaisler");
-- 
cgit 


From 42ddb453a0cd07569e728dbf3e9109cf3ae03e26 Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Wed, 18 Sep 2013 14:48:32 +0200
Subject: radeon: Conditionally compile PM code

The power management code is only used on X86 and PowerMac. To prevent
the compiler from warning about unused code, only build when PM and one
of X86 or PowerMac is selected.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/aty/radeon_pm.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/video/aty/radeon_pm.c b/drivers/video/aty/radeon_pm.c
index f2662247363e..46a12f1a93c3 100644
--- a/drivers/video/aty/radeon_pm.c
+++ b/drivers/video/aty/radeon_pm.c
@@ -1427,6 +1427,8 @@ static void radeon_pm_full_reset_sdram(struct radeonfb_info *rinfo)
 	mdelay( 15);
 }
 
+#if defined(CONFIG_PM)
+#if defined(CONFIG_X86) || defined(CONFIG_PPC_PMAC)
 static void radeon_pm_reset_pad_ctlr_strength(struct radeonfb_info *rinfo)
 {
 	u32 tmp, tmp2;
@@ -1939,9 +1941,10 @@ static void radeon_reinitialize_M10(struct radeonfb_info *rinfo)
 	 */
 	radeon_pm_m10_enable_lvds_spread_spectrum(rinfo);
 }
+#endif
 
 #ifdef CONFIG_PPC_OF
-
+#ifdef CONFIG_PPC_PMAC
 static void radeon_pm_m9p_reconfigure_mc(struct radeonfb_info *rinfo)
 {
 	OUTREG(MC_CNTL, rinfo->save_regs[46]);
@@ -2202,6 +2205,8 @@ static void radeon_reinitialize_M9P(struct radeonfb_info *rinfo)
 	radeon_pm_restore_pixel_pll(rinfo);
 	radeon_pm_m10_enable_lvds_spread_spectrum(rinfo);
 }
+#endif
+#endif
 
 #if 0 /* Not ready yet */
 static void radeon_reinitialize_QW(struct radeonfb_info *rinfo)
-- 
cgit 


From a5d58be0796ac93d18a6dde5a14fafee0b73eb0d Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Sep 2013 14:06:39 +0900
Subject: video: atmel_lcdfb: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Also, unnecessary casting from return value that is a void pointer
is removed.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/atmel_lcdfb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index 088511a58a26..df05550b82e6 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -935,8 +935,8 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev)
 
 	sinfo = info->par;
 
-	if (dev->platform_data) {
-		pdata_sinfo = (struct atmel_lcdfb_info *)dev->platform_data;
+	if (dev_get_platdata(dev)) {
+		pdata_sinfo = dev_get_platdata(dev);
 		sinfo->default_bpp = pdata_sinfo->default_bpp;
 		sinfo->default_dmacon = pdata_sinfo->default_dmacon;
 		sinfo->default_lcdcon2 = pdata_sinfo->default_lcdcon2;
-- 
cgit 


From 521fdb7c4d05ab48fcbfe3d7eac169e305c88118 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Sep 2013 13:57:22 +0900
Subject: video: mx3fb: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/mx3fb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/mx3fb.c b/drivers/video/mx3fb.c
index cfdb380ec81e..804f874d32d3 100644
--- a/drivers/video/mx3fb.c
+++ b/drivers/video/mx3fb.c
@@ -1354,7 +1354,7 @@ static struct fb_info *mx3fb_init_fbinfo(struct device *dev, struct fb_ops *ops)
 static int init_fb_chan(struct mx3fb_data *mx3fb, struct idmac_channel *ichan)
 {
 	struct device *dev = mx3fb->dev;
-	struct mx3fb_platform_data *mx3fb_pdata = dev->platform_data;
+	struct mx3fb_platform_data *mx3fb_pdata = dev_get_platdata(dev);
 	const char *name = mx3fb_pdata->name;
 	unsigned int irq;
 	struct fb_info *fbi;
@@ -1462,7 +1462,7 @@ static bool chan_filter(struct dma_chan *chan, void *arg)
 		return false;
 
 	dev = rq->mx3fb->dev;
-	mx3fb_pdata = dev->platform_data;
+	mx3fb_pdata = dev_get_platdata(dev);
 
 	return rq->id == chan->chan_id &&
 		mx3fb_pdata->dma_dev == chan->device->dev;
-- 
cgit 


From cd7c7f6c3c6d0800e1096aa6d1bf36271c48f8ff Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Sep 2013 13:58:33 +0900
Subject: video: nuc900fb: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/nuc900fb.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/video/nuc900fb.c b/drivers/video/nuc900fb.c
index 796e5112ceee..ec32f675466d 100644
--- a/drivers/video/nuc900fb.c
+++ b/drivers/video/nuc900fb.c
@@ -91,7 +91,7 @@ static int nuc900fb_check_var(struct fb_var_screeninfo *var,
 			       struct fb_info *info)
 {
 	struct nuc900fb_info *fbi = info->par;
-	struct nuc900fb_mach_info *mach_info = fbi->dev->platform_data;
+	struct nuc900fb_mach_info *mach_info = dev_get_platdata(fbi->dev);
 	struct nuc900fb_display *display = NULL;
 	struct nuc900fb_display *default_display = mach_info->displays +
 						   mach_info->default_display;
@@ -358,7 +358,7 @@ static inline void modify_gpio(void __iomem *reg,
 static int nuc900fb_init_registers(struct fb_info *info)
 {
 	struct nuc900fb_info *fbi = info->par;
-	struct nuc900fb_mach_info *mach_info = fbi->dev->platform_data;
+	struct nuc900fb_mach_info *mach_info = dev_get_platdata(fbi->dev);
 	void __iomem *regs = fbi->io;
 
 	/*reset the display engine*/
@@ -512,7 +512,7 @@ static int nuc900fb_probe(struct platform_device *pdev)
 	int size;
 
 	dev_dbg(&pdev->dev, "devinit\n");
-	mach_info = pdev->dev.platform_data;
+	mach_info = dev_get_platdata(&pdev->dev);
 	if (mach_info == NULL) {
 		dev_err(&pdev->dev,
 			"no platform data for lcd, cannot attach\n");
-- 
cgit 


From dffb3b47baf472c538c85c22fdce78cbed786536 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Sep 2013 13:58:58 +0900
Subject: video: omapfb: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap/hwa742.c      | 2 +-
 drivers/video/omap/omapfb_main.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/video/omap/hwa742.c b/drivers/video/omap/hwa742.c
index f349ee6f0cea..a4ee65b8f918 100644
--- a/drivers/video/omap/hwa742.c
+++ b/drivers/video/omap/hwa742.c
@@ -947,7 +947,7 @@ static int hwa742_init(struct omapfb_device *fbdev, int ext_mode,
 	hwa742.extif = fbdev->ext_if;
 	hwa742.int_ctrl = fbdev->int_ctrl;
 
-	omapfb_conf = fbdev->dev->platform_data;
+	omapfb_conf = dev_get_platdata(fbdev->dev);
 
 	hwa742.sys_ck = clk_get(NULL, "hwa_sys_ck");
 
diff --git a/drivers/video/omap/omapfb_main.c b/drivers/video/omap/omapfb_main.c
index d40612c31a98..e4fc6d9b5371 100644
--- a/drivers/video/omap/omapfb_main.c
+++ b/drivers/video/omap/omapfb_main.c
@@ -1602,7 +1602,7 @@ static int omapfb_find_ctrl(struct omapfb_device *fbdev)
 	char name[17];
 	int i;
 
-	conf = fbdev->dev->platform_data;
+	conf = dev_get_platdata(fbdev->dev);
 
 	fbdev->ctrl = NULL;
 
@@ -1674,7 +1674,7 @@ static int omapfb_do_probe(struct platform_device *pdev,
 		goto cleanup;
 	}
 
-	if (pdev->dev.platform_data == NULL) {
+	if (dev_get_platdata(&pdev->dev) == NULL) {
 		dev_err(&pdev->dev, "missing platform data\n");
 		r = -ENOENT;
 		goto cleanup;
-- 
cgit 


From 006ac4d4f7d40d2ef0a059721630c7d2f1b3858e Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Sep 2013 13:59:59 +0900
Subject: video: pxa168fb: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/pxa168fb.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/video/pxa168fb.c b/drivers/video/pxa168fb.c
index aa9bd1f76d60..c95b9e46d48f 100644
--- a/drivers/video/pxa168fb.c
+++ b/drivers/video/pxa168fb.c
@@ -364,7 +364,7 @@ static void set_graphics_start(struct fb_info *info, int xoffset, int yoffset)
 static void set_dumb_panel_control(struct fb_info *info)
 {
 	struct pxa168fb_info *fbi = info->par;
-	struct pxa168fb_mach_info *mi = fbi->dev->platform_data;
+	struct pxa168fb_mach_info *mi = dev_get_platdata(fbi->dev);
 	u32 x;
 
 	/*
@@ -407,7 +407,7 @@ static int pxa168fb_set_par(struct fb_info *info)
 	u32 x;
 	struct pxa168fb_mach_info *mi;
 
-	mi = fbi->dev->platform_data;
+	mi = dev_get_platdata(fbi->dev);
 
 	/*
 	 * Set additional mode info.
@@ -609,7 +609,7 @@ static int pxa168fb_probe(struct platform_device *pdev)
 	struct clk *clk;
 	int irq, ret;
 
-	mi = pdev->dev.platform_data;
+	mi = dev_get_platdata(&pdev->dev);
 	if (mi == NULL) {
 		dev_err(&pdev->dev, "no platform data defined\n");
 		return -EINVAL;
-- 
cgit 


From 22313679b86c2073b0a570f6e5685b2e0edbf9df Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Sep 2013 14:01:01 +0900
Subject: video: pxafb: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/pxafb.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c
index eca2de45f7a6..1ecd9cec2921 100644
--- a/drivers/video/pxafb.c
+++ b/drivers/video/pxafb.c
@@ -457,7 +457,7 @@ static int pxafb_adjust_timing(struct pxafb_info *fbi,
 static int pxafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 {
 	struct pxafb_info *fbi = (struct pxafb_info *)info;
-	struct pxafb_mach_info *inf = fbi->dev->platform_data;
+	struct pxafb_mach_info *inf = dev_get_platdata(fbi->dev);
 	int err;
 
 	if (inf->fixed_modes) {
@@ -1230,7 +1230,7 @@ static unsigned int __smart_timing(unsigned time_ns, unsigned long lcd_clk)
 static void setup_smart_timing(struct pxafb_info *fbi,
 				struct fb_var_screeninfo *var)
 {
-	struct pxafb_mach_info *inf = fbi->dev->platform_data;
+	struct pxafb_mach_info *inf = dev_get_platdata(fbi->dev);
 	struct pxafb_mode_info *mode = &inf->modes[0];
 	unsigned long lclk = clk_get_rate(fbi->clk);
 	unsigned t1, t2, t3, t4;
@@ -1258,14 +1258,14 @@ static void setup_smart_timing(struct pxafb_info *fbi,
 static int pxafb_smart_thread(void *arg)
 {
 	struct pxafb_info *fbi = arg;
-	struct pxafb_mach_info *inf = fbi->dev->platform_data;
+	struct pxafb_mach_info *inf = dev_get_platdata(fbi->dev);
 
 	if (!inf->smart_update) {
 		pr_err("%s: not properly initialized, thread terminated\n",
 				__func__);
 		return -EINVAL;
 	}
-	inf = fbi->dev->platform_data;
+	inf = dev_get_platdata(fbi->dev);
 
 	pr_debug("%s(): task starting\n", __func__);
 
@@ -1793,7 +1793,7 @@ static struct pxafb_info *pxafb_init_fbinfo(struct device *dev)
 {
 	struct pxafb_info *fbi;
 	void *addr;
-	struct pxafb_mach_info *inf = dev->platform_data;
+	struct pxafb_mach_info *inf = dev_get_platdata(dev);
 
 	/* Alloc the pxafb_info and pseudo_palette in one step */
 	fbi = kmalloc(sizeof(struct pxafb_info) + sizeof(u32) * 16, GFP_KERNEL);
@@ -1855,7 +1855,7 @@ static struct pxafb_info *pxafb_init_fbinfo(struct device *dev)
 #ifdef CONFIG_FB_PXA_PARAMETERS
 static int parse_opt_mode(struct device *dev, const char *this_opt)
 {
-	struct pxafb_mach_info *inf = dev->platform_data;
+	struct pxafb_mach_info *inf = dev_get_platdata(dev);
 
 	const char *name = this_opt+5;
 	unsigned int namelen = strlen(name);
@@ -1914,7 +1914,7 @@ done:
 
 static int parse_opt(struct device *dev, char *this_opt)
 {
-	struct pxafb_mach_info *inf = dev->platform_data;
+	struct pxafb_mach_info *inf = dev_get_platdata(dev);
 	struct pxafb_mode_info *mode = &inf->modes[0];
 	char s[64];
 
@@ -2102,7 +2102,7 @@ static int pxafb_probe(struct platform_device *dev)
 
 	dev_dbg(&dev->dev, "pxafb_probe\n");
 
-	inf = dev->dev.platform_data;
+	inf = dev_get_platdata(&dev->dev);
 	ret = -ENOMEM;
 	fbi = NULL;
 	if (!inf)
-- 
cgit 


From 1df86cdaee3acc9b7e72855870eccaecbff336e6 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Sep 2013 14:01:38 +0900
Subject: video: s3c2410: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/s3c2410fb.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/video/s3c2410fb.c b/drivers/video/s3c2410fb.c
index 21a32adbb8ea..81af5a63e9e1 100644
--- a/drivers/video/s3c2410fb.c
+++ b/drivers/video/s3c2410fb.c
@@ -123,7 +123,7 @@ static int s3c2410fb_check_var(struct fb_var_screeninfo *var,
 			       struct fb_info *info)
 {
 	struct s3c2410fb_info *fbi = info->par;
-	struct s3c2410fb_mach_info *mach_info = fbi->dev->platform_data;
+	struct s3c2410fb_mach_info *mach_info = dev_get_platdata(fbi->dev);
 	struct s3c2410fb_display *display = NULL;
 	struct s3c2410fb_display *default_display = mach_info->displays +
 						    mach_info->default_display;
@@ -686,7 +686,7 @@ static inline void modify_gpio(void __iomem *reg,
 static int s3c2410fb_init_registers(struct fb_info *info)
 {
 	struct s3c2410fb_info *fbi = info->par;
-	struct s3c2410fb_mach_info *mach_info = fbi->dev->platform_data;
+	struct s3c2410fb_mach_info *mach_info = dev_get_platdata(fbi->dev);
 	unsigned long flags;
 	void __iomem *regs = fbi->io;
 	void __iomem *tpal;
@@ -833,7 +833,7 @@ static int s3c24xxfb_probe(struct platform_device *pdev,
 	int size;
 	u32 lcdcon1;
 
-	mach_info = pdev->dev.platform_data;
+	mach_info = dev_get_platdata(&pdev->dev);
 	if (mach_info == NULL) {
 		dev_err(&pdev->dev,
 			"no platform data for lcd, cannot attach\n");
-- 
cgit 


From 50144243c264cdb98f340856fa2e0bbd859ed320 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Sep 2013 14:02:24 +0900
Subject: video: sa1100fb: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/sa1100fb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/sa1100fb.c b/drivers/video/sa1100fb.c
index de76da0c6429..580c444ec301 100644
--- a/drivers/video/sa1100fb.c
+++ b/drivers/video/sa1100fb.c
@@ -1116,7 +1116,7 @@ static struct fb_monspecs monspecs = {
 
 static struct sa1100fb_info *sa1100fb_init_fbinfo(struct device *dev)
 {
-	struct sa1100fb_mach_info *inf = dev->platform_data;
+	struct sa1100fb_mach_info *inf = dev_get_platdata(dev);
 	struct sa1100fb_info *fbi;
 	unsigned i;
 
@@ -1201,7 +1201,7 @@ static int sa1100fb_probe(struct platform_device *pdev)
 	struct resource *res;
 	int ret, irq;
 
-	if (!pdev->dev.platform_data) {
+	if (!dev_get_platdata(&pdev->dev)) {
 		dev_err(&pdev->dev, "no platform LCD data\n");
 		return -EINVAL;
 	}
-- 
cgit 


From ad86abd81eb92afb978e093940bf731b948d7836 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Sep 2013 14:03:19 +0900
Subject: video: sh_mobile_hdmi: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/sh_mobile_hdmi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/video/sh_mobile_hdmi.c b/drivers/video/sh_mobile_hdmi.c
index bfe4728480fd..45417fa9749b 100644
--- a/drivers/video/sh_mobile_hdmi.c
+++ b/drivers/video/sh_mobile_hdmi.c
@@ -498,7 +498,7 @@ static void sh_hdmi_video_config(struct sh_hdmi *hdmi)
 static void sh_hdmi_audio_config(struct sh_hdmi *hdmi)
 {
 	u8 data;
-	struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data;
+	struct sh_mobile_hdmi_info *pdata = dev_get_platdata(hdmi->dev);
 
 	/*
 	 * [7:4] L/R data swap control
@@ -815,7 +815,7 @@ static unsigned long sh_hdmi_rate_error(struct sh_hdmi *hdmi,
 		unsigned long *hdmi_rate, unsigned long *parent_rate)
 {
 	unsigned long target = PICOS2KHZ(mode->pixclock) * 1000, rate_error;
-	struct sh_mobile_hdmi_info *pdata = hdmi->dev->platform_data;
+	struct sh_mobile_hdmi_info *pdata = dev_get_platdata(hdmi->dev);
 
 	*hdmi_rate = clk_round_rate(hdmi->hdmi_clk, target);
 	if ((long)*hdmi_rate < 0)
@@ -1271,7 +1271,7 @@ static void sh_hdmi_htop1_init(struct sh_hdmi *hdmi)
 
 static int __init sh_hdmi_probe(struct platform_device *pdev)
 {
-	struct sh_mobile_hdmi_info *pdata = pdev->dev.platform_data;
+	struct sh_mobile_hdmi_info *pdata = dev_get_platdata(&pdev->dev);
 	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	struct resource *htop1_res;
 	int irq = platform_get_irq(pdev, 0), ret;
-- 
cgit 


From 46d2db824575add49edf53b835674a8d905b2390 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Sep 2013 14:03:53 +0900
Subject: video: amba-clcd: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/amba-clcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/amba-clcd.c b/drivers/video/amba-clcd.c
index 0a2cce7285be..b7aa68b3eeff 100644
--- a/drivers/video/amba-clcd.c
+++ b/drivers/video/amba-clcd.c
@@ -544,7 +544,7 @@ static int clcdfb_register(struct clcd_fb *fb)
 
 static int clcdfb_probe(struct amba_device *dev, const struct amba_id *id)
 {
-	struct clcd_board *board = dev->dev.platform_data;
+	struct clcd_board *board = dev_get_platdata(&dev->dev);
 	struct clcd_fb *fb;
 	int ret;
 
-- 
cgit 


From 700601d28039bd01d26cb2328d11140ae8c53fd2 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Sep 2013 14:04:50 +0900
Subject: video: da8xx-fb: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/da8xx-fb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c
index e030e17a83f2..70fc8e89cf19 100644
--- a/drivers/video/da8xx-fb.c
+++ b/drivers/video/da8xx-fb.c
@@ -1314,7 +1314,7 @@ static struct fb_ops da8xx_fb_ops = {
 
 static struct fb_videomode *da8xx_fb_get_videomode(struct platform_device *dev)
 {
-	struct da8xx_lcdc_platform_data *fb_pdata = dev->dev.platform_data;
+	struct da8xx_lcdc_platform_data *fb_pdata = dev_get_platdata(&dev->dev);
 	struct fb_videomode *lcdc_info;
 	int i;
 
@@ -1336,7 +1336,7 @@ static struct fb_videomode *da8xx_fb_get_videomode(struct platform_device *dev)
 static int fb_probe(struct platform_device *device)
 {
 	struct da8xx_lcdc_platform_data *fb_pdata =
-						device->dev.platform_data;
+						dev_get_platdata(&device->dev);
 	static struct resource *lcdc_regs;
 	struct lcd_ctrl_config *lcd_cfg;
 	struct fb_videomode *lcdc_info;
-- 
cgit 


From e09f398e534944146245a7fab7f642e9247b104a Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Sep 2013 14:08:14 +0900
Subject: video: ep93xx-fb: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/ep93xx-fb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/ep93xx-fb.c b/drivers/video/ep93xx-fb.c
index 28a837dfddd1..35a0f533f1a2 100644
--- a/drivers/video/ep93xx-fb.c
+++ b/drivers/video/ep93xx-fb.c
@@ -487,7 +487,7 @@ static void ep93xxfb_dealloc_videomem(struct fb_info *info)
 
 static int ep93xxfb_probe(struct platform_device *pdev)
 {
-	struct ep93xxfb_mach_info *mach_info = pdev->dev.platform_data;
+	struct ep93xxfb_mach_info *mach_info = dev_get_platdata(&pdev->dev);
 	struct fb_info *info;
 	struct ep93xx_fbi *fbi;
 	struct resource *res;
-- 
cgit 


From 1c8034c7f0a3b53bb27b0faa9a6e3f88da0322ea Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Sep 2013 14:08:58 +0900
Subject: video: imxfb: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/imxfb.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/video/imxfb.c b/drivers/video/imxfb.c
index 38733ac2b698..44ee678481d5 100644
--- a/drivers/video/imxfb.c
+++ b/drivers/video/imxfb.c
@@ -755,7 +755,7 @@ static int imxfb_resume(struct platform_device *dev)
 
 static int imxfb_init_fbinfo(struct platform_device *pdev)
 {
-	struct imx_fb_platform_data *pdata = pdev->dev.platform_data;
+	struct imx_fb_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct fb_info *info = dev_get_drvdata(&pdev->dev);
 	struct imxfb_info *fbi = info->par;
 	struct device_node *np;
@@ -877,7 +877,7 @@ static int imxfb_probe(struct platform_device *pdev)
 	if (!res)
 		return -ENODEV;
 
-	pdata = pdev->dev.platform_data;
+	pdata = dev_get_platdata(&pdev->dev);
 
 	info = framebuffer_alloc(sizeof(struct imxfb_info), &pdev->dev);
 	if (!info)
@@ -1066,7 +1066,7 @@ static int imxfb_remove(struct platform_device *pdev)
 #endif
 	unregister_framebuffer(info);
 
-	pdata = pdev->dev.platform_data;
+	pdata = dev_get_platdata(&pdev->dev);
 	if (pdata && pdata->exit)
 		pdata->exit(fbi->pdev);
 
-- 
cgit 


From 3b2633fb1b8da59f0a160da7110a666b3e44b500 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Sep 2013 14:09:37 +0900
Subject: video: mbxfb: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/mbx/mbxfb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/mbx/mbxfb.c b/drivers/video/mbx/mbxfb.c
index 0c1a874ffd2b..f87c4ef10b78 100644
--- a/drivers/video/mbx/mbxfb.c
+++ b/drivers/video/mbx/mbxfb.c
@@ -890,7 +890,7 @@ static int mbxfb_probe(struct platform_device *dev)
 
 	dev_dbg(&dev->dev, "mbxfb_probe\n");
 
-	pdata = dev->dev.platform_data;
+	pdata = dev_get_platdata(&dev->dev);
 	if (!pdata) {
 		dev_err(&dev->dev, "platform data is required\n");
 		return -EINVAL;
-- 
cgit 


From 772ee6daf19554e72a2ac268b36a9abc9e3bff0f Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Sep 2013 14:10:19 +0900
Subject: video: s1d13xxxfb: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/s1d13xxxfb.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/video/s1d13xxxfb.c b/drivers/video/s1d13xxxfb.c
index 05c2dc3d4bc0..1399a469f8b0 100644
--- a/drivers/video/s1d13xxxfb.c
+++ b/drivers/video/s1d13xxxfb.c
@@ -777,8 +777,8 @@ static int s1d13xxxfb_probe(struct platform_device *pdev)
 	printk(KERN_INFO "Epson S1D13XXX FB Driver\n");
 
 	/* enable platform-dependent hardware glue, if any */
-	if (pdev->dev.platform_data)
-		pdata = pdev->dev.platform_data;
+	if (dev_get_platdata(&pdev->dev))
+		pdata = dev_get_platdata(&pdev->dev);
 
 	if (pdata && pdata->platform_init_video)
 		pdata->platform_init_video();
@@ -923,8 +923,8 @@ static int s1d13xxxfb_suspend(struct platform_device *dev, pm_message_t state)
 	lcd_enable(s1dfb, 0);
 	crt_enable(s1dfb, 0);
 
-	if (dev->dev.platform_data)
-		pdata = dev->dev.platform_data;
+	if (dev_get_platdata(&dev->dev))
+		pdata = dev_get_platdata(&dev->dev);
 
 #if 0
 	if (!s1dfb->disp_save)
@@ -973,8 +973,8 @@ static int s1d13xxxfb_resume(struct platform_device *dev)
 	while ((s1d13xxxfb_readreg(s1dfb, S1DREG_PS_STATUS) & 0x01))
 		udelay(10);
 
-	if (dev->dev.platform_data)
-		pdata = dev->dev.platform_data;
+	if (dev_get_platdata(&dev->dev))
+		pdata = dev_get_platdata(&dev->dev);
 
 	if (s1dfb->regs_save) {
 		/* will write RO regs, *should* get away with it :) */
-- 
cgit 


From 8b4c7e5da29b48381d3855a7b5cd656a58c6154c Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Sep 2013 14:10:37 +0900
Subject: video: s3c-fb: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/s3c-fb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/s3c-fb.c b/drivers/video/s3c-fb.c
index 2e7991c7ca08..62acae2694a9 100644
--- a/drivers/video/s3c-fb.c
+++ b/drivers/video/s3c-fb.c
@@ -1378,7 +1378,7 @@ static int s3c_fb_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	pd = pdev->dev.platform_data;
+	pd = dev_get_platdata(&pdev->dev);
 	if (!pd) {
 		dev_err(dev, "no platform data specified\n");
 		return -EINVAL;
-- 
cgit 


From 129f1be4b9357aec87cbc6d25a75a04b1d8c3a72 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Sep 2013 14:11:04 +0900
Subject: video: simplefb: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/simplefb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/simplefb.c b/drivers/video/simplefb.c
index 8d7810613058..ad46d2dd55a2 100644
--- a/drivers/video/simplefb.c
+++ b/drivers/video/simplefb.c
@@ -132,7 +132,7 @@ static int simplefb_parse_dt(struct platform_device *pdev,
 static int simplefb_parse_pd(struct platform_device *pdev,
 			     struct simplefb_params *params)
 {
-	struct simplefb_platform_data *pd = pdev->dev.platform_data;
+	struct simplefb_platform_data *pd = dev_get_platdata(&pdev->dev);
 	int i;
 
 	params->width = pd->width;
@@ -167,7 +167,7 @@ static int simplefb_probe(struct platform_device *pdev)
 		return -ENODEV;
 
 	ret = -ENODEV;
-	if (pdev->dev.platform_data)
+	if (dev_get_platdata(&pdev->dev))
 		ret = simplefb_parse_pd(pdev, &params);
 	else if (pdev->dev.of_node)
 		ret = simplefb_parse_dt(pdev, &params);
-- 
cgit 


From 0442f762b08bfd1ec929ec8768c8046db4a0e8d7 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Sep 2013 14:11:34 +0900
Subject: video: tmiofb: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/tmiofb.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/video/tmiofb.c b/drivers/video/tmiofb.c
index deb8733f3c70..b5b69a6b9dd8 100644
--- a/drivers/video/tmiofb.c
+++ b/drivers/video/tmiofb.c
@@ -250,7 +250,7 @@ static irqreturn_t tmiofb_irq(int irq, void *__info)
  */
 static int tmiofb_hw_stop(struct platform_device *dev)
 {
-	struct tmio_fb_data *data = dev->dev.platform_data;
+	struct tmio_fb_data *data = dev_get_platdata(&dev->dev);
 	struct fb_info *info = platform_get_drvdata(dev);
 	struct tmiofb_par *par = info->par;
 
@@ -311,7 +311,7 @@ static int tmiofb_hw_init(struct platform_device *dev)
  */
 static void tmiofb_hw_mode(struct platform_device *dev)
 {
-	struct tmio_fb_data *data = dev->dev.platform_data;
+	struct tmio_fb_data *data = dev_get_platdata(&dev->dev);
 	struct fb_info *info = platform_get_drvdata(dev);
 	struct fb_videomode *mode = info->mode;
 	struct tmiofb_par *par = info->par;
@@ -557,7 +557,7 @@ static int tmiofb_ioctl(struct fb_info *fbi,
 static struct fb_videomode *
 tmiofb_find_mode(struct fb_info *info, struct fb_var_screeninfo *var)
 {
-	struct tmio_fb_data *data = info->device->platform_data;
+	struct tmio_fb_data *data = dev_get_platdata(info->device);
 	struct fb_videomode *best = NULL;
 	int i;
 
@@ -577,7 +577,7 @@ static int tmiofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 {
 
 	struct fb_videomode *mode;
-	struct tmio_fb_data *data = info->device->platform_data;
+	struct tmio_fb_data *data = dev_get_platdata(info->device);
 
 	mode = tmiofb_find_mode(info, var);
 	if (!mode || var->bits_per_pixel > 16)
@@ -678,7 +678,7 @@ static struct fb_ops tmiofb_ops = {
 static int tmiofb_probe(struct platform_device *dev)
 {
 	const struct mfd_cell *cell = mfd_get_cell(dev);
-	struct tmio_fb_data *data = dev->dev.platform_data;
+	struct tmio_fb_data *data = dev_get_platdata(&dev->dev);
 	struct resource *ccr = platform_get_resource(dev, IORESOURCE_MEM, 1);
 	struct resource *lcr = platform_get_resource(dev, IORESOURCE_MEM, 0);
 	struct resource *vram = platform_get_resource(dev, IORESOURCE_MEM, 2);
-- 
cgit 


From 91f8628b7f7fe82af389ca99fffa1f132cb6afbf Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Sep 2013 14:11:55 +0900
Subject: video: w100fb: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/w100fb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/w100fb.c b/drivers/video/w100fb.c
index 7a299e951f75..2a0437a6d838 100644
--- a/drivers/video/w100fb.c
+++ b/drivers/video/w100fb.c
@@ -680,7 +680,7 @@ int w100fb_probe(struct platform_device *pdev)
 	par = info->par;
 	platform_set_drvdata(pdev, info);
 
-	inf = pdev->dev.platform_data;
+	inf = dev_get_platdata(&pdev->dev);
 	par->chip_id = chip_id;
 	par->mach = inf;
 	par->fastpll_mode = 0;
-- 
cgit 


From fa129ebeba6db2b4bcea45efe87a71d68181c04c Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Thu, 19 Sep 2013 18:20:26 +0100
Subject: ASoC: 88pm60x: Don't use control data for i2c

In preparation for using the regmap directly in the CODEC driver replace
references to the I2C client using control_data with references to the
driver private data.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/88pm860x-codec.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/sound/soc/codecs/88pm860x-codec.c b/sound/soc/codecs/88pm860x-codec.c
index 8af04343cc1a..3925cf34f751 100644
--- a/sound/soc/codecs/88pm860x-codec.c
+++ b/sound/soc/codecs/88pm860x-codec.c
@@ -1166,6 +1166,7 @@ static int pm860x_i2s_set_dai_fmt(struct snd_soc_dai *codec_dai,
 static int pm860x_set_bias_level(struct snd_soc_codec *codec,
 				 enum snd_soc_bias_level level)
 {
+	struct pm860x_priv *pm860x = snd_soc_codec_get_drvdata(codec);
 	int data;
 
 	switch (level) {
@@ -1179,17 +1180,17 @@ static int pm860x_set_bias_level(struct snd_soc_codec *codec,
 		if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
 			/* Enable Audio PLL & Audio section */
 			data = AUDIO_PLL | AUDIO_SECTION_ON;
-			pm860x_reg_write(codec->control_data, REG_MISC2, data);
+			pm860x_reg_write(pm860x->i2c, REG_MISC2, data);
 			udelay(300);
 			data = AUDIO_PLL | AUDIO_SECTION_RESET
 				| AUDIO_SECTION_ON;
-			pm860x_reg_write(codec->control_data, REG_MISC2, data);
+			pm860x_reg_write(pm860x->i2c, REG_MISC2, data);
 		}
 		break;
 
 	case SND_SOC_BIAS_OFF:
 		data = AUDIO_PLL | AUDIO_SECTION_RESET | AUDIO_SECTION_ON;
-		pm860x_set_bits(codec->control_data, REG_MISC2, data, 0);
+		pm860x_set_bits(pm860x->i2c, REG_MISC2, data, 0);
 		break;
 	}
 	codec->dapm.bias_level = level;
@@ -1319,17 +1320,17 @@ int pm860x_hs_jack_detect(struct snd_soc_codec *codec,
 	pm860x->det.lo_shrt = lo_shrt;
 
 	if (det & SND_JACK_HEADPHONE)
-		pm860x_set_bits(codec->control_data, REG_HS_DET,
+		pm860x_set_bits(pm860x->i2c, REG_HS_DET,
 				EN_HS_DET, EN_HS_DET);
 	/* headset short detect */
 	if (hs_shrt) {
 		data = CLR_SHORT_HS2 | CLR_SHORT_HS1;
-		pm860x_set_bits(codec->control_data, REG_SHORTS, data, data);
+		pm860x_set_bits(pm860x->i2c, REG_SHORTS, data, data);
 	}
 	/* Lineout short detect */
 	if (lo_shrt) {
 		data = CLR_SHORT_LO2 | CLR_SHORT_LO1;
-		pm860x_set_bits(codec->control_data, REG_SHORTS, data, data);
+		pm860x_set_bits(pm860x->i2c, REG_SHORTS, data, data);
 	}
 
 	/* sync status */
@@ -1347,7 +1348,7 @@ int pm860x_mic_jack_detect(struct snd_soc_codec *codec,
 	pm860x->det.mic_det = det;
 
 	if (det & SND_JACK_MICROPHONE)
-		pm860x_set_bits(codec->control_data, REG_MIC_DET,
+		pm860x_set_bits(pm860x->i2c, REG_MIC_DET,
 				MICDET_MASK, MICDET_MASK);
 
 	/* sync status */
@@ -1377,7 +1378,7 @@ static int pm860x_probe(struct snd_soc_codec *codec)
 
 	pm860x_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
-	ret = pm860x_bulk_read(codec->control_data, REG_CACHE_BASE,
+	ret = pm860x_bulk_read(pm860x->i2c, REG_CACHE_BASE,
 			       REG_CACHE_SIZE, codec->reg_cache);
 	if (ret < 0) {
 		dev_err(codec->dev, "Failed to fill register cache: %d\n",
-- 
cgit 


From f9ded3b2e761256301ebb8d90e87eb1b5443e3ea Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Thu, 19 Sep 2013 19:00:46 +0100
Subject: ASoC: 88pm860x: Use regmap for I/O

As part of a move to remove the duplication of regmap functionality in ASoC
convert the 88pm860x driver to use the regmap from the MFD. This means that
we no longer cache the registers so performance will be slightly reduced
on I/O operations.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/88pm860x-codec.c |  60 ++-----------------
 sound/soc/codecs/88pm860x-codec.h | 117 +++++++++++++++++++-------------------
 2 files changed, 63 insertions(+), 114 deletions(-)

diff --git a/sound/soc/codecs/88pm860x-codec.c b/sound/soc/codecs/88pm860x-codec.c
index 3925cf34f751..4633e51b1500 100644
--- a/sound/soc/codecs/88pm860x-codec.c
+++ b/sound/soc/codecs/88pm860x-codec.c
@@ -16,6 +16,7 @@
 #include <linux/mfd/88pm860x.h>
 #include <linux/slab.h>
 #include <linux/delay.h>
+#include <linux/regmap.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -140,6 +141,7 @@ struct pm860x_priv {
 	unsigned int		filter;
 	struct snd_soc_codec	*codec;
 	struct i2c_client	*i2c;
+	struct regmap		*regmap;
 	struct pm860x_chip	*chip;
 	struct pm860x_det	det;
 
@@ -269,48 +271,6 @@ static struct st_gain st_table[] = {
 	{   -86, 29,  0}, {   -56, 30,  0}, {   -28, 31,  0}, {     0,  0,  0},
 };
 
-static int pm860x_volatile(unsigned int reg)
-{
-	BUG_ON(reg >= REG_CACHE_SIZE);
-
-	switch (reg) {
-	case PM860X_AUDIO_SUPPLIES_2:
-		return 1;
-	}
-
-	return 0;
-}
-
-static unsigned int pm860x_read_reg_cache(struct snd_soc_codec *codec,
-					  unsigned int reg)
-{
-	unsigned char *cache = codec->reg_cache;
-
-	BUG_ON(reg >= REG_CACHE_SIZE);
-
-	if (pm860x_volatile(reg))
-		return cache[reg];
-
-	reg += REG_CACHE_BASE;
-
-	return pm860x_reg_read(codec->control_data, reg);
-}
-
-static int pm860x_write_reg_cache(struct snd_soc_codec *codec,
-				  unsigned int reg, unsigned int value)
-{
-	unsigned char *cache = codec->reg_cache;
-
-	BUG_ON(reg >= REG_CACHE_SIZE);
-
-	if (!pm860x_volatile(reg))
-		cache[reg] = (unsigned char)value;
-
-	reg += REG_CACHE_BASE;
-
-	return pm860x_reg_write(codec->control_data, reg, value);
-}
-
 static int snd_soc_get_volsw_2r_st(struct snd_kcontrol *kcontrol,
 				   struct snd_ctl_elem_value *ucontrol)
 {
@@ -1364,7 +1324,7 @@ static int pm860x_probe(struct snd_soc_codec *codec)
 
 	pm860x->codec = codec;
 
-	codec->control_data = pm860x->i2c;
+	codec->control_data = pm860x->regmap;
 
 	for (i = 0; i < 4; i++) {
 		ret = request_threaded_irq(pm860x->irq[i], NULL,
@@ -1378,14 +1338,6 @@ static int pm860x_probe(struct snd_soc_codec *codec)
 
 	pm860x_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
-	ret = pm860x_bulk_read(pm860x->i2c, REG_CACHE_BASE,
-			       REG_CACHE_SIZE, codec->reg_cache);
-	if (ret < 0) {
-		dev_err(codec->dev, "Failed to fill register cache: %d\n",
-			ret);
-		goto out;
-	}
-
 	return 0;
 
 out:
@@ -1408,10 +1360,6 @@ static int pm860x_remove(struct snd_soc_codec *codec)
 static struct snd_soc_codec_driver soc_codec_dev_pm860x = {
 	.probe		= pm860x_probe,
 	.remove		= pm860x_remove,
-	.read		= pm860x_read_reg_cache,
-	.write		= pm860x_write_reg_cache,
-	.reg_cache_size	= REG_CACHE_SIZE,
-	.reg_word_size	= sizeof(u8),
 	.set_bias_level	= pm860x_set_bias_level,
 
 	.controls = pm860x_snd_controls,
@@ -1437,6 +1385,8 @@ static int pm860x_codec_probe(struct platform_device *pdev)
 	pm860x->chip = chip;
 	pm860x->i2c = (chip->id == CHIP_PM8607) ? chip->client
 			: chip->companion;
+	pm860x->regmap = (chip->id == CHIP_PM8607) ? chip->regmap
+			: chip->regmap_companion;
 	platform_set_drvdata(pdev, pm860x);
 
 	for (i = 0; i < 4; i++) {
diff --git a/sound/soc/codecs/88pm860x-codec.h b/sound/soc/codecs/88pm860x-codec.h
index 3364ba4a3607..f7282f4f4a79 100644
--- a/sound/soc/codecs/88pm860x-codec.h
+++ b/sound/soc/codecs/88pm860x-codec.h
@@ -12,67 +12,66 @@
 #ifndef __88PM860X_H
 #define __88PM860X_H
 
-/* The offset of these registers are 0xb0 */
-#define PM860X_PCM_IFACE_1		0x00
-#define PM860X_PCM_IFACE_2		0x01
-#define PM860X_PCM_IFACE_3		0x02
-#define PM860X_PCM_RATE			0x03
-#define PM860X_EC_PATH			0x04
-#define PM860X_SIDETONE_L_GAIN		0x05
-#define PM860X_SIDETONE_R_GAIN		0x06
-#define PM860X_SIDETONE_SHIFT		0x07
-#define PM860X_ADC_OFFSET_1		0x08
-#define PM860X_ADC_OFFSET_2		0x09
-#define PM860X_DMIC_DELAY		0x0a
+#define PM860X_PCM_IFACE_1		0xb0
+#define PM860X_PCM_IFACE_2		0xb1
+#define PM860X_PCM_IFACE_3		0xb2
+#define PM860X_PCM_RATE			0xb3
+#define PM860X_EC_PATH			0xb4
+#define PM860X_SIDETONE_L_GAIN		0xb5
+#define PM860X_SIDETONE_R_GAIN		0xb6
+#define PM860X_SIDETONE_SHIFT		0xb7
+#define PM860X_ADC_OFFSET_1		0xb8
+#define PM860X_ADC_OFFSET_2		0xb9
+#define PM860X_DMIC_DELAY		0xba
 
-#define PM860X_I2S_IFACE_1		0x0b
-#define PM860X_I2S_IFACE_2		0x0c
-#define PM860X_I2S_IFACE_3		0x0d
-#define PM860X_I2S_IFACE_4		0x0e
-#define PM860X_EQUALIZER_N0_1		0x0f
-#define PM860X_EQUALIZER_N0_2		0x10
-#define PM860X_EQUALIZER_N1_1		0x11
-#define PM860X_EQUALIZER_N1_2		0x12
-#define PM860X_EQUALIZER_D1_1		0x13
-#define PM860X_EQUALIZER_D1_2		0x14
-#define PM860X_LOFI_GAIN_LEFT		0x15
-#define PM860X_LOFI_GAIN_RIGHT		0x16
-#define PM860X_HIFIL_GAIN_LEFT		0x17
-#define PM860X_HIFIL_GAIN_RIGHT		0x18
-#define PM860X_HIFIR_GAIN_LEFT		0x19
-#define PM860X_HIFIR_GAIN_RIGHT		0x1a
-#define PM860X_DAC_OFFSET		0x1b
-#define PM860X_OFFSET_LEFT_1		0x1c
-#define PM860X_OFFSET_LEFT_2		0x1d
-#define PM860X_OFFSET_RIGHT_1		0x1e
-#define PM860X_OFFSET_RIGHT_2		0x1f
-#define PM860X_ADC_ANA_1		0x20
-#define PM860X_ADC_ANA_2		0x21
-#define PM860X_ADC_ANA_3		0x22
-#define PM860X_ADC_ANA_4		0x23
-#define PM860X_ANA_TO_ANA		0x24
-#define PM860X_HS1_CTRL			0x25
-#define PM860X_HS2_CTRL			0x26
-#define PM860X_LO1_CTRL			0x27
-#define PM860X_LO2_CTRL			0x28
-#define PM860X_EAR_CTRL_1		0x29
-#define PM860X_EAR_CTRL_2		0x2a
-#define PM860X_AUDIO_SUPPLIES_1		0x2b
-#define PM860X_AUDIO_SUPPLIES_2		0x2c
-#define PM860X_ADC_EN_1			0x2d
-#define PM860X_ADC_EN_2			0x2e
-#define PM860X_DAC_EN_1			0x2f
-#define PM860X_DAC_EN_2			0x31
-#define PM860X_AUDIO_CAL_1		0x32
-#define PM860X_AUDIO_CAL_2		0x33
-#define PM860X_AUDIO_CAL_3		0x34
-#define PM860X_AUDIO_CAL_4		0x35
-#define PM860X_AUDIO_CAL_5		0x36
-#define PM860X_ANA_INPUT_SEL_1		0x37
-#define PM860X_ANA_INPUT_SEL_2		0x38
+#define PM860X_I2S_IFACE_1		0xbb
+#define PM860X_I2S_IFACE_2		0xbc
+#define PM860X_I2S_IFACE_3		0xbd
+#define PM860X_I2S_IFACE_4		0xbe
+#define PM860X_EQUALIZER_N0_1		0xbf
+#define PM860X_EQUALIZER_N0_2		0xc0
+#define PM860X_EQUALIZER_N1_1		0xc1
+#define PM860X_EQUALIZER_N1_2		0xc2
+#define PM860X_EQUALIZER_D1_1		0xc3
+#define PM860X_EQUALIZER_D1_2		0xc4
+#define PM860X_LOFI_GAIN_LEFT		0xc5
+#define PM860X_LOFI_GAIN_RIGHT		0xc6
+#define PM860X_HIFIL_GAIN_LEFT		0xc7
+#define PM860X_HIFIL_GAIN_RIGHT		0xc8
+#define PM860X_HIFIR_GAIN_LEFT		0xc9
+#define PM860X_HIFIR_GAIN_RIGHT		0xca
+#define PM860X_DAC_OFFSET		0xcb
+#define PM860X_OFFSET_LEFT_1		0xcc
+#define PM860X_OFFSET_LEFT_2		0xcd
+#define PM860X_OFFSET_RIGHT_1		0xce
+#define PM860X_OFFSET_RIGHT_2		0xcf
+#define PM860X_ADC_ANA_1		0xd0
+#define PM860X_ADC_ANA_2		0xd1
+#define PM860X_ADC_ANA_3		0xd2
+#define PM860X_ADC_ANA_4		0xd3
+#define PM860X_ANA_TO_ANA		0xd4
+#define PM860X_HS1_CTRL			0xd5
+#define PM860X_HS2_CTRL			0xd6
+#define PM860X_LO1_CTRL			0xd7
+#define PM860X_LO2_CTRL			0xd8
+#define PM860X_EAR_CTRL_1		0xd9
+#define PM860X_EAR_CTRL_2		0xda
+#define PM860X_AUDIO_SUPPLIES_1		0xdb
+#define PM860X_AUDIO_SUPPLIES_2		0xdc
+#define PM860X_ADC_EN_1			0xdd
+#define PM860X_ADC_EN_2			0xde
+#define PM860X_DAC_EN_1			0xdf
+#define PM860X_DAC_EN_2			0xe1
+#define PM860X_AUDIO_CAL_1		0xe2
+#define PM860X_AUDIO_CAL_2		0xe3
+#define PM860X_AUDIO_CAL_3		0xe4
+#define PM860X_AUDIO_CAL_4		0xe5
+#define PM860X_AUDIO_CAL_5		0xe6
+#define PM860X_ANA_INPUT_SEL_1		0xe7
+#define PM860X_ANA_INPUT_SEL_2		0xe8
 
-#define PM860X_PCM_IFACE_4		0x39
-#define PM860X_I2S_IFACE_5		0x3a
+#define PM860X_PCM_IFACE_4		0xe9
+#define PM860X_I2S_IFACE_5		0xea
 
 #define PM860X_SHORTS			0x3b
 #define PM860X_PLL_ADJ_1		0x3c
-- 
cgit 


From 78925b3a791b3ad485fe56d0b8951a5d043b7cae Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 09:45:35 +0530
Subject: regulator: tps6524x: Remove redundant spi_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/tps6524x-regulator.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/regulator/tps6524x-regulator.c b/drivers/regulator/tps6524x-regulator.c
index 62e8d28beabd..8b9ee3983a6c 100644
--- a/drivers/regulator/tps6524x-regulator.c
+++ b/drivers/regulator/tps6524x-regulator.c
@@ -588,7 +588,6 @@ static int pmic_remove(struct spi_device *spi)
 		regulator_unregister(hw->rdev[i]);
 		hw->rdev[i] = NULL;
 	}
-	spi_set_drvdata(spi, NULL);
 	return 0;
 }
 
-- 
cgit 


From f8c1700dd7d2ce9b2238b20d364317b2968ac76b Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Fri, 20 Sep 2013 13:13:02 +0530
Subject: regulator: core: set current constraints while setting machine
 constraints

Machine constraints is configured during regulator register. If current
constraints are provided through machine constraints then it is observed
that sometime the current configured on rail is out of range what machine
constraint has.

Set the current constraints when setting machine constraints to make
sure that rail's current is within the range of given machine constraints.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/core.c | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 5217c1964c32..66ae12d12c10 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -923,6 +923,36 @@ static int machine_constraints_voltage(struct regulator_dev *rdev,
 	return 0;
 }
 
+static int machine_constraints_current(struct regulator_dev *rdev,
+	struct regulation_constraints *constraints)
+{
+	struct regulator_ops *ops = rdev->desc->ops;
+	int ret;
+
+	if (!constraints->min_uA && !constraints->max_uA)
+		return 0;
+
+	if (constraints->min_uA > constraints->max_uA) {
+		rdev_err(rdev, "Invalid current constraints\n");
+		return -EINVAL;
+	}
+
+	if (!ops->set_current_limit || !ops->get_current_limit) {
+		rdev_warn(rdev, "Operation of current configuration missing\n");
+		return 0;
+	}
+
+	/* Set regulator current in constraints range */
+	ret = ops->set_current_limit(rdev, constraints->min_uA,
+			constraints->max_uA);
+	if (ret < 0) {
+		rdev_err(rdev, "Failed to set current constraint, %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
 /**
  * set_machine_constraints - sets regulator constraints
  * @rdev: regulator source
@@ -953,6 +983,10 @@ static int set_machine_constraints(struct regulator_dev *rdev,
 	if (ret != 0)
 		goto out;
 
+	ret = machine_constraints_current(rdev, rdev->constraints);
+	if (ret != 0)
+		goto out;
+
 	/* do we need to setup our suspend state */
 	if (rdev->constraints->initial_state) {
 		ret = suspend_prepare(rdev, rdev->constraints->initial_state);
-- 
cgit 


From 9a27d5916b1d0338f76a4a8cb6fabc5320664453 Mon Sep 17 00:00:00 2001
From: Guoqing Li <ligq@marvell.com>
Date: Fri, 13 Sep 2013 14:59:45 +0800
Subject: video: mmp: rb swap setting update for mmp display

We could set rb swap in two modules: DMA controler input part and
dsi interface output part.
DMA input part is based on pix_fmt to set rbswap, dsi output interface
part will set rbswap based on platform dsi_rbswap configuration.

This patch include below change and enhancement:

1) The input format which support rbswap is based on RGB format,
eg. RGB565 indicates the source data in memory is that Red is [15~11],
Green is [10~5], Blue is [4:0], Red is MSB, Blue is LSB, but for the
display dma input default setting(rbswap = 0), it only support Blue
is [15~11], Green is [10~5], Red is [4:0], Red is LSB, Blue is MSB,
so for this format(RGB565), display controller need to set rbswap
 = 1 and it can support the MSB/LSB correctly.
BGR/YUV format will not set it in mmp display driver.

2) The dsi output part of rbswap is depend on dsi_rbswap which is
defined in specific platfrom. For output dsi interface, it has this
feature to do rbswap again if it needs specifc byte sequence of RGB
byte for DSI panel.
eg. If display content is set RGB565 in memory and DMA input part set
rbswap in driver to support Red as MSB , Blue LSB, but dsi panel only
support Red as LSB, Blue as MSB, then it can use this feature.
If there is no this requirement of panel, this dsi output part is not
needed.

Signed-off-by: Guoqing Li <ligq@marvell.com>
Signed-off-by: Jett.Zhou <jtzhou@marvell.com>
Signed-off-by: Zhou Zhu <zzhu3@marvell.com>
Reviewed-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/mmp/hw/mmp_ctrl.c | 19 +++++++++++--------
 drivers/video/mmp/hw/mmp_ctrl.h |  5 +++++
 include/video/mmp_disp.h        |  1 +
 3 files changed, 17 insertions(+), 8 deletions(-)

diff --git a/drivers/video/mmp/hw/mmp_ctrl.c b/drivers/video/mmp/hw/mmp_ctrl.c
index 75dca19bf214..a40d95a54eec 100644
--- a/drivers/video/mmp/hw/mmp_ctrl.c
+++ b/drivers/video/mmp/hw/mmp_ctrl.c
@@ -60,8 +60,7 @@ static irqreturn_t ctrl_handle_irq(int irq, void *dev_id)
 
 static u32 fmt_to_reg(struct mmp_overlay *overlay, int pix_fmt)
 {
-	u32 link_config = path_to_path_plat(overlay->path)->link_config;
-	u32 rbswap, uvswap = 0, yuvswap = 0,
+	u32 rbswap = 0, uvswap = 0, yuvswap = 0,
 		csc_en = 0, val = 0,
 		vid = overlay_is_vid(overlay);
 
@@ -71,27 +70,23 @@ static u32 fmt_to_reg(struct mmp_overlay *overlay, int pix_fmt)
 	case PIXFMT_RGB888PACK:
 	case PIXFMT_RGB888UNPACK:
 	case PIXFMT_RGBA888:
-		rbswap = !(link_config & 0x1);
+		rbswap = 1;
 		break;
 	case PIXFMT_VYUY:
 	case PIXFMT_YVU422P:
 	case PIXFMT_YVU420P:
-		rbswap = link_config & 0x1;
 		uvswap = 1;
 		break;
 	case PIXFMT_YUYV:
-		rbswap = link_config & 0x1;
 		yuvswap = 1;
 		break;
 	default:
-		rbswap = link_config & 0x1;
 		break;
 	}
 
 	switch (pix_fmt) {
 	case PIXFMT_RGB565:
 	case PIXFMT_BGR565:
-		val = 0;
 		break;
 	case PIXFMT_RGB1555:
 	case PIXFMT_BGR1555:
@@ -248,7 +243,8 @@ static void path_set_mode(struct mmp_path *path, struct mmp_mode *mode)
 {
 	struct lcd_regs *regs = path_regs(path);
 	u32 total_x, total_y, vsync_ctrl, tmp, sclk_src, sclk_div,
-		link_config = path_to_path_plat(path)->link_config;
+		link_config = path_to_path_plat(path)->link_config,
+		dsi_rbswap = path_to_path_plat(path)->link_config;
 
 	/* FIXME: assert videomode supported */
 	memcpy(&path->mode, mode, sizeof(struct mmp_mode));
@@ -263,6 +259,12 @@ static void path_set_mode(struct mmp_path *path, struct mmp_mode *mode)
 	tmp |= CFG_DUMB_ENA(1);
 	writel_relaxed(tmp, ctrl_regs(path) + intf_ctrl(path->id));
 
+	/* interface rb_swap setting */
+	tmp = readl_relaxed(ctrl_regs(path) + intf_rbswap_ctrl(path->id)) &
+		(~(CFG_INTFRBSWAP_MASK));
+	tmp |= dsi_rbswap & CFG_INTFRBSWAP_MASK;
+	writel_relaxed(tmp, ctrl_regs(path) + intf_rbswap_ctrl(path->id));
+
 	writel_relaxed((mode->yres << 16) | mode->xres, &regs->screen_active);
 	writel_relaxed((mode->left_margin << 16) | mode->right_margin,
 		&regs->screen_h_porch);
@@ -419,6 +421,7 @@ static int path_init(struct mmphw_path_plat *path_plat,
 	path_plat->path = path;
 	path_plat->path_config = config->path_config;
 	path_plat->link_config = config->link_config;
+	path_plat->dsi_rbswap = config->dsi_rbswap;
 	path_set_default(path);
 
 	kfree(path_info);
diff --git a/drivers/video/mmp/hw/mmp_ctrl.h b/drivers/video/mmp/hw/mmp_ctrl.h
index edd2002b0e99..53301cfdb1ae 100644
--- a/drivers/video/mmp/hw/mmp_ctrl.h
+++ b/drivers/video/mmp/hw/mmp_ctrl.h
@@ -163,6 +163,8 @@ struct lcd_regs {
 
 #define LCD_SCLK(path) ((PATH_PN == path->id) ? LCD_CFG_SCLK_DIV :\
 	((PATH_TV == path->id) ? LCD_TCLK_DIV : LCD_PN2_SCLK_DIV))
+#define intf_rbswap_ctrl(id)	((id) ? (((id) & 1) ? LCD_TVIF_CTRL : \
+				PN2_IOPAD_CONTROL) : LCD_TOP_CTRL)
 
 /* dither configure */
 #ifdef CONFIG_CPU_PXA988
@@ -615,6 +617,8 @@ struct lcd_regs {
 #define LCD_SPU_DUMB_CTRL			0x01B8
 #define	 CFG_DUMBMODE(mode)			((mode)<<28)
 #define	 CFG_DUMBMODE_MASK			0xF0000000
+#define	 CFG_INTFRBSWAP(mode)			((mode)<<24)
+#define	 CFG_INTFRBSWAP_MASK			0x0F000000
 #define	 CFG_LCDGPIO_O(data)			((data)<<20)
 #define	 CFG_LCDGPIO_O_MASK			0x0FF00000
 #define	 CFG_LCDGPIO_ENA(gpio)			((gpio)<<12)
@@ -1427,6 +1431,7 @@ struct mmphw_path_plat {
 	struct mmp_path *path;
 	u32 path_config;
 	u32 link_config;
+	u32 dsi_rbswap;
 };
 
 /* mmp ctrl describes mmp controller related info */
diff --git a/include/video/mmp_disp.h b/include/video/mmp_disp.h
index b9dd1fbb0082..32094c052deb 100644
--- a/include/video/mmp_disp.h
+++ b/include/video/mmp_disp.h
@@ -334,6 +334,7 @@ struct mmp_mach_path_config {
 	int output_type;
 	u32 path_config;
 	u32 link_config;
+	u32 dsi_rbswap;
 };
 
 struct mmp_mach_plat_info {
-- 
cgit 


From 7ebdc78af2e310129a8b6eaffd8fbe637e18bd50 Mon Sep 17 00:00:00 2001
From: "Jett.Zhou" <jtzhou@marvell.com>
Date: Fri, 13 Sep 2013 14:59:46 +0800
Subject: ARM: mmp: remove the legacy rbswap setting for ttc_dkb platform

According to new rbswap scheme of mmp_display, it support appropriate
rbswap setting based on specific pix_fmt, then we can remove the legacy
rbswap setting for ttc_dkb platform.

Signed-off-by: Jett.Zhou <jtzhou@marvell.com>
Signed-off-by: Zhou Zhu <zzhu3@marvell.com>
Reviewed-by: Daniel Drake <dsd@laptop.org>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 arch/arm/mach-mmp/ttc_dkb.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/arm/mach-mmp/ttc_dkb.c b/arch/arm/mach-mmp/ttc_dkb.c
index 702232996c8c..cfadd974f5ce 100644
--- a/arch/arm/mach-mmp/ttc_dkb.c
+++ b/arch/arm/mach-mmp/ttc_dkb.c
@@ -191,7 +191,6 @@ static struct pxa3xx_nand_platform_data dkb_nand_info = {
 #define SCLK_SOURCE_SELECT(x)  (x << 30) /* 0x0 ~ 0x3 */
 /* link config */
 #define CFG_DUMBMODE(mode)     (mode << 28) /* 0x0 ~ 0x6*/
-#define CFG_GRA_SWAPRB(x)      (x << 0) /* 1: rbswap enabled */
 static struct mmp_mach_path_config dkb_disp_config[] = {
 	[0] = {
 		.name = "mmp-parallel",
@@ -199,8 +198,7 @@ static struct mmp_mach_path_config dkb_disp_config[] = {
 		.output_type = PATH_OUT_PARALLEL,
 		.path_config = CFG_IOPADMODE(0x1)
 			| SCLK_SOURCE_SELECT(0x1),
-		.link_config = CFG_DUMBMODE(0x2)
-			| CFG_GRA_SWAPRB(0x1),
+		.link_config = CFG_DUMBMODE(0x2),
 	},
 };
 
-- 
cgit 


From 1f2e42c6c3cdf1b62772f27e1de6033691839cfb Mon Sep 17 00:00:00 2001
From: Guoqing Li <ligq@marvell.com>
Date: Fri, 13 Sep 2013 14:59:47 +0800
Subject: video: mmp: optimize some register setting code

There are dumplicate code of the smooth setting based on different
path, optimized the routine and use readl_relaxed instead.

Signed-off-by: Jett.Zhou <jtzhou@marvell.com>
Signed-off-by: Jing Xiang <jxiang@marvell.com>
Signed-off-by: Guoqing Li <ligq@marvell.com>
Signed-off-by: Zhou Zhu <zzhu3@marvell.com>
Reviewed-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/mmp/hw/mmp_ctrl.c | 22 +++++++---------------
 1 file changed, 7 insertions(+), 15 deletions(-)

diff --git a/drivers/video/mmp/hw/mmp_ctrl.c b/drivers/video/mmp/hw/mmp_ctrl.c
index a40d95a54eec..c0eb8bccfb87 100644
--- a/drivers/video/mmp/hw/mmp_ctrl.c
+++ b/drivers/video/mmp/hw/mmp_ctrl.c
@@ -53,7 +53,7 @@ static irqreturn_t ctrl_handle_irq(int irq, void *dev_id)
 		tmp = readl_relaxed(ctrl->reg_base + SPU_IRQ_ISR);
 		if (tmp & isr)
 			writel_relaxed(~isr, ctrl->reg_base + SPU_IRQ_ISR);
-	} while ((isr = readl(ctrl->reg_base + SPU_IRQ_ISR)) & imask);
+	} while ((isr = readl_relaxed(ctrl->reg_base + SPU_IRQ_ISR)) & imask);
 
 	return IRQ_HANDLED;
 }
@@ -372,20 +372,12 @@ static void path_set_default(struct mmp_path *path)
 	 * bus arbiter for faster read if not tv path;
 	 * 2.enable horizontal smooth filter;
 	 */
-	if (PATH_PN == path->id) {
-		mask = CFG_GRA_HSMOOTH_MASK | CFG_DMA_HSMOOTH_MASK
-			| CFG_ARBFAST_ENA(1);
-		tmp = readl_relaxed(ctrl_regs(path) + dma_ctrl(0, path->id));
-		tmp |= mask;
-		writel_relaxed(tmp, ctrl_regs(path) + dma_ctrl(0, path->id));
-	} else if (PATH_TV == path->id) {
-		mask = CFG_GRA_HSMOOTH_MASK | CFG_DMA_HSMOOTH_MASK
-			| CFG_ARBFAST_ENA(1);
-		tmp = readl_relaxed(ctrl_regs(path) + dma_ctrl(0, path->id));
-		tmp &= ~mask;
-		tmp |= CFG_GRA_HSMOOTH_MASK | CFG_DMA_HSMOOTH_MASK;
-		writel_relaxed(tmp, ctrl_regs(path) + dma_ctrl(0, path->id));
-	}
+	mask = CFG_GRA_HSMOOTH_MASK | CFG_DMA_HSMOOTH_MASK | CFG_ARBFAST_ENA(1);
+	tmp = readl_relaxed(ctrl_regs(path) + dma_ctrl(0, path->id));
+	tmp |= mask;
+	if (PATH_TV == path->id)
+		tmp &= ~CFG_ARBFAST_ENA(1);
+	writel_relaxed(tmp, ctrl_regs(path) + dma_ctrl(0, path->id));
 }
 
 static int path_init(struct mmphw_path_plat *path_plat,
-- 
cgit 


From cc50bc5bb29a9b4f71913d0b36ab45c6055eafc0 Mon Sep 17 00:00:00 2001
From: Jing Xiang <jxiang@marvell.com>
Date: Fri, 13 Sep 2013 14:59:48 +0800
Subject: video: mmp: calculate pitch value when fb set win

Add new func mmpfb_set_win to make code clean, it will do resolution
and fmt setting of win in mmpfb_set_win.

Signed-off-by: Jing Xiang <jxiang@marvell.com>
Signed-off-by: Jett.Zhou <jtzhou@marvell.com>
Signed-off-by: Zhou Zhu <zzhu3@marvell.com>
Reviewed-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/mmp/fb/mmpfb.c | 28 ++++++++++++++++------------
 1 file changed, 16 insertions(+), 12 deletions(-)

diff --git a/drivers/video/mmp/fb/mmpfb.c b/drivers/video/mmp/fb/mmpfb.c
index 4ab95b8daed3..19fd913f462d 100644
--- a/drivers/video/mmp/fb/mmpfb.c
+++ b/drivers/video/mmp/fb/mmpfb.c
@@ -392,12 +392,23 @@ static int var_update(struct fb_info *info)
 	return 0;
 }
 
+static void mmpfb_set_win(struct fb_info *info)
+{
+	struct mmpfb_info *fbi = info->par;
+	struct mmp_win win;
+
+	memset(&win, 0, sizeof(win));
+	win.xsrc = win.xdst = fbi->mode.xres;
+	win.ysrc = win.ydst = fbi->mode.yres;
+	win.pix_fmt = fbi->pix_fmt;
+	mmp_overlay_set_win(fbi->overlay, &win);
+}
+
 static int mmpfb_set_par(struct fb_info *info)
 {
 	struct mmpfb_info *fbi = info->par;
 	struct fb_var_screeninfo *var = &info->var;
 	struct mmp_addr addr;
-	struct mmp_win win;
 	struct mmp_mode mode;
 	int ret;
 
@@ -409,11 +420,8 @@ static int mmpfb_set_par(struct fb_info *info)
 	fbmode_to_mmpmode(&mode, &fbi->mode, fbi->output_fmt);
 	mmp_path_set_mode(fbi->path, &mode);
 
-	memset(&win, 0, sizeof(win));
-	win.xsrc = win.xdst = fbi->mode.xres;
-	win.ysrc = win.ydst = fbi->mode.yres;
-	win.pix_fmt = fbi->pix_fmt;
-	mmp_overlay_set_win(fbi->overlay, &win);
+	/* set window related info */
+	mmpfb_set_win(info);
 
 	/* set address always */
 	memset(&addr, 0, sizeof(addr));
@@ -427,16 +435,12 @@ static int mmpfb_set_par(struct fb_info *info)
 static void mmpfb_power(struct mmpfb_info *fbi, int power)
 {
 	struct mmp_addr addr;
-	struct mmp_win win;
 	struct fb_var_screeninfo *var = &fbi->fb_info->var;
 
 	/* for power on, always set address/window again */
 	if (power) {
-		memset(&win, 0, sizeof(win));
-		win.xsrc = win.xdst = fbi->mode.xres;
-		win.ysrc = win.ydst = fbi->mode.yres;
-		win.pix_fmt = fbi->pix_fmt;
-		mmp_overlay_set_win(fbi->overlay, &win);
+		/* set window related info */
+		mmpfb_set_win(fbi->fb_info);
 
 		/* set address always */
 		memset(&addr, 0, sizeof(addr));
-- 
cgit 


From 24586d8342ab27bc75e4560d71e98f3e5dc67d8e Mon Sep 17 00:00:00 2001
From: Jing Xiang <jxiang@marvell.com>
Date: Fri, 13 Sep 2013 14:59:49 +0800
Subject: video: mmp: add pitch info in mmp_win structure

Add pitch length info of graphics/video layer, pitch is used
to represent line length in byte, the usage depends on pix_fmt.
If the fmt is YUV, the pitch[0] will be Y length,pitch[1]
will be U length, pitch[2] will be V lenth.
If the fmt is RGB, the picth[0] will be line lenth, and
pitch[1]/pitch[2] will be 0 and not be used.

Signed-off-by: Jing Xiang <jxiang@marvell.com>
Signed-off-by: Jett.Zhou <jtzhou@marvell.com>
Signed-off-by: Zhou Zhu <zzhu3@marvell.com>
Reviewed-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/mmp/fb/mmpfb.c    |  6 ++++++
 drivers/video/mmp/hw/mmp_ctrl.c | 30 +++++++++++++++++++++++-------
 include/video/mmp_disp.h        |  5 +++++
 3 files changed, 34 insertions(+), 7 deletions(-)

diff --git a/drivers/video/mmp/fb/mmpfb.c b/drivers/video/mmp/fb/mmpfb.c
index 19fd913f462d..7ab31eb76a8c 100644
--- a/drivers/video/mmp/fb/mmpfb.c
+++ b/drivers/video/mmp/fb/mmpfb.c
@@ -395,12 +395,18 @@ static int var_update(struct fb_info *info)
 static void mmpfb_set_win(struct fb_info *info)
 {
 	struct mmpfb_info *fbi = info->par;
+	struct fb_var_screeninfo *var = &info->var;
 	struct mmp_win win;
+	u32 stride;
 
 	memset(&win, 0, sizeof(win));
 	win.xsrc = win.xdst = fbi->mode.xres;
 	win.ysrc = win.ydst = fbi->mode.yres;
 	win.pix_fmt = fbi->pix_fmt;
+	stride = pixfmt_to_stride(win.pix_fmt);
+	win.pitch[0] = var->xres_virtual * stride;
+	win.pitch[1] = win.pitch[2] =
+		(stride == 1) ? (var->xres_virtual >> 1) : 0;
 	mmp_overlay_set_win(fbi->overlay, &win);
 }
 
diff --git a/drivers/video/mmp/hw/mmp_ctrl.c b/drivers/video/mmp/hw/mmp_ctrl.c
index c0eb8bccfb87..ae724aaaad47 100644
--- a/drivers/video/mmp/hw/mmp_ctrl.c
+++ b/drivers/video/mmp/hw/mmp_ctrl.c
@@ -142,17 +142,27 @@ static void dmafetch_set_fmt(struct mmp_overlay *overlay)
 static void overlay_set_win(struct mmp_overlay *overlay, struct mmp_win *win)
 {
 	struct lcd_regs *regs = path_regs(overlay->path);
-	u32 pitch;
 
 	/* assert win supported */
 	memcpy(&overlay->win, win, sizeof(struct mmp_win));
 
 	mutex_lock(&overlay->access_ok);
-	pitch = win->xsrc * pixfmt_to_stride(win->pix_fmt);
-	writel_relaxed(pitch, &regs->g_pitch);
-	writel_relaxed((win->ysrc << 16) | win->xsrc, &regs->g_size);
-	writel_relaxed((win->ydst << 16) | win->xdst, &regs->g_size_z);
-	writel_relaxed(0, &regs->g_start);
+
+	if (overlay_is_vid(overlay)) {
+		writel_relaxed(win->pitch[0], &regs->v_pitch_yc);
+		writel_relaxed(win->pitch[2] << 16 |
+				win->pitch[1], &regs->v_pitch_uv);
+
+		writel_relaxed((win->ysrc << 16) | win->xsrc, &regs->v_size);
+		writel_relaxed((win->ydst << 16) | win->xdst, &regs->v_size_z);
+		writel_relaxed(win->ypos << 16 | win->xpos, &regs->v_start);
+	} else {
+		writel_relaxed(win->pitch[0], &regs->g_pitch);
+
+		writel_relaxed((win->ysrc << 16) | win->xsrc, &regs->g_size);
+		writel_relaxed((win->ydst << 16) | win->xdst, &regs->g_size_z);
+		writel_relaxed(win->ypos << 16 | win->xpos, &regs->g_start);
+	}
 
 	dmafetch_set_fmt(overlay);
 	mutex_unlock(&overlay->access_ok);
@@ -234,7 +244,13 @@ static int overlay_set_addr(struct mmp_overlay *overlay, struct mmp_addr *addr)
 
 	/* FIXME: assert addr supported */
 	memcpy(&overlay->addr, addr, sizeof(struct mmp_addr));
-	writel(addr->phys[0], &regs->g_0);
+
+	if (overlay_is_vid(overlay)) {
+		writel_relaxed(addr->phys[0], &regs->v_y0);
+		writel_relaxed(addr->phys[1], &regs->v_u0);
+		writel_relaxed(addr->phys[2], &regs->v_v0);
+	} else
+		writel_relaxed(addr->phys[0], &regs->g_0);
 
 	return overlay->addr.phys[0];
 }
diff --git a/include/video/mmp_disp.h b/include/video/mmp_disp.h
index 32094c052deb..9fd9398368d5 100644
--- a/include/video/mmp_disp.h
+++ b/include/video/mmp_disp.h
@@ -91,6 +91,11 @@ struct mmp_win {
 	u16	up_crop;
 	u16	bottom_crop;
 	int	pix_fmt;
+	/*
+	 * pitch[0]: graphics/video layer line length or y pitch
+	 * pitch[1]/pitch[2]: video u/v pitch if non-zero
+	 */
+	u32	pitch[3];
 };
 
 struct mmp_addr {
-- 
cgit 


From 7aff2e3a56b724b79fa2d5abd10d8231ef8fb0c5 Mon Sep 17 00:00:00 2001
From: Vladimir Davydov <vdavydov@parallels.com>
Date: Sun, 15 Sep 2013 21:30:13 +0400
Subject: sched/balancing: Prevent the reselection of a previous env.dst_cpu if
 some tasks are pinned

Currently new_dst_cpu is prevented from being reselected actually, not
dst_cpu. This can result in attempting to pull tasks to this_cpu twice.

Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/281f59b6e596c718dd565ad267fc38f5b8e5c995.1379265590.git.vdavydov@parallels.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 71c6ef58bbb9..0784ab6fcc59 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5261,15 +5261,15 @@ more_balance:
 		 */
 		if ((env.flags & LBF_DST_PINNED) && env.imbalance > 0) {
 
+			/* Prevent to re-select dst_cpu via env's cpus */
+			cpumask_clear_cpu(env.dst_cpu, env.cpus);
+
 			env.dst_rq	 = cpu_rq(env.new_dst_cpu);
 			env.dst_cpu	 = env.new_dst_cpu;
 			env.flags	&= ~LBF_DST_PINNED;
 			env.loop	 = 0;
 			env.loop_break	 = sched_nr_migrate_break;
 
-			/* Prevent to re-select dst_cpu via env's cpus */
-			cpumask_clear_cpu(env.dst_cpu, env.cpus);
-
 			/*
 			 * Go back to "more_balance" rather than "redo" since we
 			 * need to continue with same src_cpu.
-- 
cgit 


From abfafa54db9aba404e8e6763503f04d35bd07138 Mon Sep 17 00:00:00 2001
From: Jason Low <jason.low2@hp.com>
Date: Fri, 13 Sep 2013 11:26:51 -0700
Subject: sched: Reduce overestimating rq->avg_idle

When updating avg_idle, if the delta exceeds some max value, then avg_idle
gets set to the max, regardless of what the previous avg was. This can cause
avg_idle to often be overestimated.

This patch modifies the way we update avg_idle by always updating it with the
function call to update_avg() first. Then, if avg_idle exceeds the max, we set
it to the max.

Signed-off-by: Jason Low <jason.low2@hp.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Reviewed-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1379096813-3032-2-git-send-email-jason.low2@hp.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/core.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 5ac63c9a995a..048f39e45761 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1332,10 +1332,11 @@ ttwu_do_wakeup(struct rq *rq, struct task_struct *p, int wake_flags)
 		u64 delta = rq_clock(rq) - rq->idle_stamp;
 		u64 max = 2*sysctl_sched_migration_cost;
 
-		if (delta > max)
+		update_avg(&rq->avg_idle, delta);
+
+		if (rq->avg_idle > max)
 			rq->avg_idle = max;
-		else
-			update_avg(&rq->avg_idle, delta);
+
 		rq->idle_stamp = 0;
 	}
 #endif
-- 
cgit 


From 9bd721c55c8a886b938a45198aab0ccb52f1f7fa Mon Sep 17 00:00:00 2001
From: Jason Low <jason.low2@hp.com>
Date: Fri, 13 Sep 2013 11:26:52 -0700
Subject: sched/balancing: Consider max cost of idle balance per sched domain

In this patch, we keep track of the max cost we spend doing idle load balancing
for each sched domain. If the avg time the CPU remains idle is less then the
time we have already spent on idle balancing + the max cost of idle balancing
in the sched domain, then we don't continue to attempt the balance. We also
keep a per rq variable, max_idle_balance_cost, which keeps track of the max
time spent on newidle load balances throughout all its domains so that we can
determine the avg_idle's max value.

By using the max, we avoid overrunning the average. This further reduces the
chance we attempt balancing when the CPU is not idle for longer than the cost
to balance.

Signed-off-by: Jason Low <jason.low2@hp.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1379096813-3032-3-git-send-email-jason.low2@hp.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/metag/include/asm/topology.h |  1 +
 include/linux/sched.h             |  1 +
 include/linux/topology.h          |  3 +++
 kernel/sched/core.c               |  3 ++-
 kernel/sched/fair.c               | 16 ++++++++++++++++
 kernel/sched/sched.h              |  3 +++
 6 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/arch/metag/include/asm/topology.h b/arch/metag/include/asm/topology.h
index 23f5118f58db..db192924f4b0 100644
--- a/arch/metag/include/asm/topology.h
+++ b/arch/metag/include/asm/topology.h
@@ -26,6 +26,7 @@
 	.last_balance		= jiffies,		\
 	.balance_interval	= 1,			\
 	.nr_balance_failed	= 0,			\
+	.max_newidle_lb_cost	= 0,			\
 }
 
 #define cpu_to_node(cpu)	((void)(cpu), 0)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 6682da36b293..be078ff9157f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -810,6 +810,7 @@ struct sched_domain {
 	unsigned int nr_balance_failed; /* initialise to 0 */
 
 	u64 last_update;
+	u64 max_newidle_lb_cost;
 
 #ifdef CONFIG_SCHEDSTATS
 	/* load_balance() stats */
diff --git a/include/linux/topology.h b/include/linux/topology.h
index d3cf0d6e7712..e2a2c3da2929 100644
--- a/include/linux/topology.h
+++ b/include/linux/topology.h
@@ -106,6 +106,7 @@ int arch_update_cpu_topology(void);
 	.last_balance		= jiffies,				\
 	.balance_interval	= 1,					\
 	.smt_gain		= 1178,	/* 15% */			\
+	.max_newidle_lb_cost	= 0,					\
 }
 #endif
 #endif /* CONFIG_SCHED_SMT */
@@ -135,6 +136,7 @@ int arch_update_cpu_topology(void);
 				,					\
 	.last_balance		= jiffies,				\
 	.balance_interval	= 1,					\
+	.max_newidle_lb_cost	= 0,					\
 }
 #endif
 #endif /* CONFIG_SCHED_MC */
@@ -166,6 +168,7 @@ int arch_update_cpu_topology(void);
 				,					\
 	.last_balance		= jiffies,				\
 	.balance_interval	= 1,					\
+	.max_newidle_lb_cost	= 0,					\
 }
 #endif
 
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 048f39e45761..c2283c54aed0 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1330,7 +1330,7 @@ ttwu_do_wakeup(struct rq *rq, struct task_struct *p, int wake_flags)
 
 	if (rq->idle_stamp) {
 		u64 delta = rq_clock(rq) - rq->idle_stamp;
-		u64 max = 2*sysctl_sched_migration_cost;
+		u64 max = 2*rq->max_idle_balance_cost;
 
 		update_avg(&rq->avg_idle, delta);
 
@@ -6506,6 +6506,7 @@ void __init sched_init(void)
 		rq->online = 0;
 		rq->idle_stamp = 0;
 		rq->avg_idle = 2*sysctl_sched_migration_cost;
+		rq->max_idle_balance_cost = sysctl_sched_migration_cost;
 
 		INIT_LIST_HEAD(&rq->cfs_tasks);
 
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 0784ab6fcc59..ffc99d8f0a95 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5396,6 +5396,7 @@ void idle_balance(int this_cpu, struct rq *this_rq)
 	struct sched_domain *sd;
 	int pulled_task = 0;
 	unsigned long next_balance = jiffies + HZ;
+	u64 curr_cost = 0;
 
 	this_rq->idle_stamp = rq_clock(this_rq);
 
@@ -5412,15 +5413,27 @@ void idle_balance(int this_cpu, struct rq *this_rq)
 	for_each_domain(this_cpu, sd) {
 		unsigned long interval;
 		int continue_balancing = 1;
+		u64 t0, domain_cost;
 
 		if (!(sd->flags & SD_LOAD_BALANCE))
 			continue;
 
+		if (this_rq->avg_idle < curr_cost + sd->max_newidle_lb_cost)
+			break;
+
 		if (sd->flags & SD_BALANCE_NEWIDLE) {
+			t0 = sched_clock_cpu(this_cpu);
+
 			/* If we've pulled tasks over stop searching: */
 			pulled_task = load_balance(this_cpu, this_rq,
 						   sd, CPU_NEWLY_IDLE,
 						   &continue_balancing);
+
+			domain_cost = sched_clock_cpu(this_cpu) - t0;
+			if (domain_cost > sd->max_newidle_lb_cost)
+				sd->max_newidle_lb_cost = domain_cost;
+
+			curr_cost += domain_cost;
 		}
 
 		interval = msecs_to_jiffies(sd->balance_interval);
@@ -5442,6 +5455,9 @@ void idle_balance(int this_cpu, struct rq *this_rq)
 		 */
 		this_rq->next_balance = next_balance;
 	}
+
+	if (curr_cost > this_rq->max_idle_balance_cost)
+		this_rq->max_idle_balance_cost = curr_cost;
 }
 
 /*
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 0d7544c3dba7..e82484db7699 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -476,6 +476,9 @@ struct rq {
 	u64 age_stamp;
 	u64 idle_stamp;
 	u64 avg_idle;
+
+	/* This is used to determine avg_idle's max value */
+	u64 max_idle_balance_cost;
 #endif
 
 #ifdef CONFIG_IRQ_TIME_ACCOUNTING
-- 
cgit 


From f48627e686a69f5215cb0761e731edb3d9859dd9 Mon Sep 17 00:00:00 2001
From: Jason Low <jason.low2@hp.com>
Date: Fri, 13 Sep 2013 11:26:53 -0700
Subject: sched/balancing: Periodically decay max cost of idle balance

This patch builds on patch 2 and periodically decays that max value to
do idle balancing per sched domain by approximately 1% per second. Also
decay the rq's max_idle_balance_cost value.

Signed-off-by: Jason Low <jason.low2@hp.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1379096813-3032-4-git-send-email-jason.low2@hp.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/metag/include/asm/topology.h |  1 +
 include/linux/sched.h             |  3 +++
 include/linux/topology.h          |  3 +++
 kernel/sched/fair.c               | 38 +++++++++++++++++++++++++++++++-------
 4 files changed, 38 insertions(+), 7 deletions(-)

diff --git a/arch/metag/include/asm/topology.h b/arch/metag/include/asm/topology.h
index db192924f4b0..8e9c0b3b9691 100644
--- a/arch/metag/include/asm/topology.h
+++ b/arch/metag/include/asm/topology.h
@@ -27,6 +27,7 @@
 	.balance_interval	= 1,			\
 	.nr_balance_failed	= 0,			\
 	.max_newidle_lb_cost	= 0,			\
+	.next_decay_max_lb_cost	= jiffies,		\
 }
 
 #define cpu_to_node(cpu)	((void)(cpu), 0)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index be078ff9157f..b5344de1658b 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -810,7 +810,10 @@ struct sched_domain {
 	unsigned int nr_balance_failed; /* initialise to 0 */
 
 	u64 last_update;
+
+	/* idle_balance() stats */
 	u64 max_newidle_lb_cost;
+	unsigned long next_decay_max_lb_cost;
 
 #ifdef CONFIG_SCHEDSTATS
 	/* load_balance() stats */
diff --git a/include/linux/topology.h b/include/linux/topology.h
index e2a2c3da2929..12ae6ce997d6 100644
--- a/include/linux/topology.h
+++ b/include/linux/topology.h
@@ -107,6 +107,7 @@ int arch_update_cpu_topology(void);
 	.balance_interval	= 1,					\
 	.smt_gain		= 1178,	/* 15% */			\
 	.max_newidle_lb_cost	= 0,					\
+	.next_decay_max_lb_cost	= jiffies,				\
 }
 #endif
 #endif /* CONFIG_SCHED_SMT */
@@ -137,6 +138,7 @@ int arch_update_cpu_topology(void);
 	.last_balance		= jiffies,				\
 	.balance_interval	= 1,					\
 	.max_newidle_lb_cost	= 0,					\
+	.next_decay_max_lb_cost	= jiffies,				\
 }
 #endif
 #endif /* CONFIG_SCHED_MC */
@@ -169,6 +171,7 @@ int arch_update_cpu_topology(void);
 	.last_balance		= jiffies,				\
 	.balance_interval	= 1,					\
 	.max_newidle_lb_cost	= 0,					\
+	.next_decay_max_lb_cost	= jiffies,				\
 }
 #endif
 
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index ffc99d8f0a95..2b89cd244b0d 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5681,15 +5681,39 @@ static void rebalance_domains(int cpu, enum cpu_idle_type idle)
 	/* Earliest time when we have to do rebalance again */
 	unsigned long next_balance = jiffies + 60*HZ;
 	int update_next_balance = 0;
-	int need_serialize;
+	int need_serialize, need_decay = 0;
+	u64 max_cost = 0;
 
 	update_blocked_averages(cpu);
 
 	rcu_read_lock();
 	for_each_domain(cpu, sd) {
+		/*
+		 * Decay the newidle max times here because this is a regular
+		 * visit to all the domains. Decay ~1% per second.
+		 */
+		if (time_after(jiffies, sd->next_decay_max_lb_cost)) {
+			sd->max_newidle_lb_cost =
+				(sd->max_newidle_lb_cost * 253) / 256;
+			sd->next_decay_max_lb_cost = jiffies + HZ;
+			need_decay = 1;
+		}
+		max_cost += sd->max_newidle_lb_cost;
+
 		if (!(sd->flags & SD_LOAD_BALANCE))
 			continue;
 
+		/*
+		 * Stop the load balance at this level. There is another
+		 * CPU in our sched group which is doing load balancing more
+		 * actively.
+		 */
+		if (!continue_balancing) {
+			if (need_decay)
+				continue;
+			break;
+		}
+
 		interval = sd->balance_interval;
 		if (idle != CPU_IDLE)
 			interval *= sd->busy_factor;
@@ -5723,14 +5747,14 @@ out:
 			next_balance = sd->last_balance + interval;
 			update_next_balance = 1;
 		}
-
+	}
+	if (need_decay) {
 		/*
-		 * Stop the load balance at this level. There is another
-		 * CPU in our sched group which is doing load balancing more
-		 * actively.
+		 * Ensure the rq-wide value also decays but keep it at a
+		 * reasonable floor to avoid funnies with rq->avg_idle.
 		 */
-		if (!continue_balancing)
-			break;
+		rq->max_idle_balance_cost =
+			max((u64)sysctl_sched_migration_cost, max_cost);
 	}
 	rcu_read_unlock();
 
-- 
cgit 


From 92519bbc8af612975410def52bd462ca9af85cdb Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Fri, 20 Sep 2013 13:08:50 +0200
Subject: perf/x86/intel: Fix build warning in intel_pmu_drain_pebs_nhm()

Fengguang Wu reported this build warning:

    arch/x86/kernel/cpu/perf_event_intel_ds.c: In function 'intel_pmu_drain_pebs_nhm':
    arch/x86/kernel/cpu/perf_event_intel_ds.c:964:2: warning: format '%ld' expects argument of type 'long int', but argument 4 has type 'int'

Because pointer arithmetics result type is bitness dependent there's no natural
type to use here, cast it to long.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-jbpauwxJqtf24luewcsdFith@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/cpu/perf_event_intel_ds.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c
index 655d591b57a0..54ff6ce519c1 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_ds.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c
@@ -963,7 +963,7 @@ static void intel_pmu_drain_pebs_nhm(struct pt_regs *iregs)
 	 */
 	WARN_ONCE(top - at > x86_pmu.max_pebs_events * x86_pmu.pebs_record_size,
 		  "Unexpected number of pebs records %ld\n",
-		  (top - at) / x86_pmu.pebs_record_size);
+		  (long)(top - at) / x86_pmu.pebs_record_size);
 
 	for (; at < top; at += x86_pmu.pebs_record_size) {
 		struct pebs_record_nhm *p = at;
-- 
cgit 


From 9b92da1f1205bd2591487051a93624dd6c258eef Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Fri, 20 Sep 2013 12:23:30 +0100
Subject: regulator: core: Fix default return value for _get()

Now that we are defaulting to providing dummy regulators fix the logic
for substituting a dummy by making the default return code -EPROBE_DEFER.

Reported-by: Thierry Reding <treding@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index ac3a864d3635..088b41ac9506 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1247,7 +1247,7 @@ static struct regulator *_regulator_get(struct device *dev, const char *id,
 	struct regulator_dev *rdev;
 	struct regulator *regulator = ERR_PTR(-EPROBE_DEFER);
 	const char *devname = NULL;
-	int ret = 0;
+	int ret = -EPROBE_DEFER;
 
 	if (id == NULL) {
 		pr_err("get() with no identifier\n");
-- 
cgit 


From 38bfd48b87c44f6958f75bfcd5ae5a53bd3ca07b Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Thu, 19 Sep 2013 19:17:14 +0100
Subject: ASoC: ab8500: Downgrade noisy log message

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
---
 sound/soc/codecs/ab8500-codec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/ab8500-codec.c b/sound/soc/codecs/ab8500-codec.c
index b8ba0adacfce..7cea5a8487d0 100644
--- a/sound/soc/codecs/ab8500-codec.c
+++ b/sound/soc/codecs/ab8500-codec.c
@@ -2601,7 +2601,7 @@ static int ab8500_codec_driver_probe(struct platform_device *pdev)
 
 static int ab8500_codec_driver_remove(struct platform_device *pdev)
 {
-	dev_info(&pdev->dev, "%s Enter.\n", __func__);
+	dev_dbg(&pdev->dev, "%s Enter.\n", __func__);
 
 	snd_soc_unregister_codec(&pdev->dev);
 
-- 
cgit 


From 51f20e4cd83e804fb4fd940873763f29616f12a8 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Thu, 19 Sep 2013 19:25:18 +0100
Subject: ASoC: ab8500: Use ASoC I/O functions

In preparation for moving away from implementing the ASoC level register
I/O functionality change direct calls to the ab8500 implementation of that
to use snd_soc_write()

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
---
 sound/soc/codecs/ab8500-codec.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/sound/soc/codecs/ab8500-codec.c b/sound/soc/codecs/ab8500-codec.c
index 7cea5a8487d0..c2b663696611 100644
--- a/sound/soc/codecs/ab8500-codec.c
+++ b/sound/soc/codecs/ab8500-codec.c
@@ -2527,12 +2527,10 @@ static int ab8500_codec_probe(struct snd_soc_codec *codec)
 	}
 
 	/* Override HW-defaults */
-	ab8500_codec_write_reg(codec,
-				AB8500_ANACONF5,
-				BIT(AB8500_ANACONF5_HSAUTOEN));
-	ab8500_codec_write_reg(codec,
-				AB8500_SHORTCIRCONF,
-				BIT(AB8500_SHORTCIRCONF_HSZCDDIS));
+	snd_soc_write(codec, AB8500_ANACONF5,
+		      BIT(AB8500_ANACONF5_HSAUTOEN));
+	snd_soc_write(codec, AB8500_SHORTCIRCONF,
+		      BIT(AB8500_SHORTCIRCONF_HSZCDDIS));
 
 	/* Add filter controls */
 	status = snd_soc_add_codec_controls(codec, ab8500_filter_controls,
-- 
cgit 


From ff795d614bfa62a3c6fc0bcb75cb8842e5a87892 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Fri, 20 Sep 2013 10:38:16 +0100
Subject: ASoC: ab8500: Convert register I/O to regmap

As part of a general push to eliminate the duplicated register I/O support
in ASoC convert ab8500 to use regmap.

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
---
 sound/soc/codecs/ab8500-codec.c | 64 +++++++++++++++++++----------------------
 1 file changed, 30 insertions(+), 34 deletions(-)

diff --git a/sound/soc/codecs/ab8500-codec.c b/sound/soc/codecs/ab8500-codec.c
index c2b663696611..d5a0fc4b2fe2 100644
--- a/sound/soc/codecs/ab8500-codec.c
+++ b/sound/soc/codecs/ab8500-codec.c
@@ -126,6 +126,8 @@ struct ab8500_codec_drvdata_dbg {
 
 /* Private data for AB8500 device-driver */
 struct ab8500_codec_drvdata {
+	struct regmap *regmap;
+
 	/* Sidetone */
 	long *sid_fir_values;
 	enum sid_state sid_status;
@@ -166,49 +168,35 @@ static inline const char *amic_type_str(enum amic_type type)
  */
 
 /* Read a register from the audio-bank of AB8500 */
-static unsigned int ab8500_codec_read_reg(struct snd_soc_codec *codec,
-					unsigned int reg)
+static int ab8500_codec_read_reg(void *context, unsigned int reg,
+				 unsigned int *value)
 {
+	struct device *dev = context;
 	int status;
-	unsigned int value = 0;
 
 	u8 value8;
-	status = abx500_get_register_interruptible(codec->dev, AB8500_AUDIO,
-						reg, &value8);
-	if (status < 0) {
-		dev_err(codec->dev,
-			"%s: ERROR: Register (0x%02x:0x%02x) read failed (%d).\n",
-			__func__, (u8)AB8500_AUDIO, (u8)reg, status);
-	} else {
-		dev_dbg(codec->dev,
-			"%s: Read 0x%02x from register 0x%02x:0x%02x\n",
-			__func__, value8, (u8)AB8500_AUDIO, (u8)reg);
-		value = (unsigned int)value8;
-	}
+	status = abx500_get_register_interruptible(dev, AB8500_AUDIO,
+						   reg, &value8);
+	*value = (unsigned int)value8;
 
-	return value;
+	return status;
 }
 
 /* Write to a register in the audio-bank of AB8500 */
-static int ab8500_codec_write_reg(struct snd_soc_codec *codec,
-				unsigned int reg, unsigned int value)
+static int ab8500_codec_write_reg(void *context, unsigned int reg,
+				  unsigned int value)
 {
-	int status;
+	struct device *dev = context;
 
-	status = abx500_set_register_interruptible(codec->dev, AB8500_AUDIO,
-						reg, value);
-	if (status < 0)
-		dev_err(codec->dev,
-			"%s: ERROR: Register (%02x:%02x) write failed (%d).\n",
-			__func__, (u8)AB8500_AUDIO, (u8)reg, status);
-	else
-		dev_dbg(codec->dev,
-			"%s: Wrote 0x%02x into register %02x:%02x\n",
-			__func__, (u8)value, (u8)AB8500_AUDIO, (u8)reg);
-
-	return status;
+	return abx500_set_register_interruptible(dev, AB8500_AUDIO,
+						 reg, value);
 }
 
+static const struct regmap_config ab8500_codec_regmap = {
+	.reg_read = ab8500_codec_read_reg,
+	.reg_write = ab8500_codec_write_reg,
+};
+
 /*
  * Controls - DAPM
  */
@@ -2483,6 +2471,8 @@ static int ab8500_codec_probe(struct snd_soc_codec *codec)
 	/* Setup AB8500 according to board-settings */
 	pdata = dev_get_platdata(dev->parent);
 
+	codec->control_data = drvdata->regmap;
+
 	if (np) {
 		if (!pdata)
 			pdata = devm_kzalloc(dev,
@@ -2560,9 +2550,6 @@ static int ab8500_codec_probe(struct snd_soc_codec *codec)
 
 static struct snd_soc_codec_driver ab8500_codec_driver = {
 	.probe =		ab8500_codec_probe,
-	.read =			ab8500_codec_read_reg,
-	.write =		ab8500_codec_write_reg,
-	.reg_word_size =	sizeof(u8),
 	.controls =		ab8500_ctrls,
 	.num_controls =		ARRAY_SIZE(ab8500_ctrls),
 	.dapm_widgets =		ab8500_dapm_widgets,
@@ -2585,6 +2572,15 @@ static int ab8500_codec_driver_probe(struct platform_device *pdev)
 	drvdata->anc_status = ANC_UNCONFIGURED;
 	dev_set_drvdata(&pdev->dev, drvdata);
 
+	drvdata->regmap = devm_regmap_init(&pdev->dev, NULL, &pdev->dev,
+					   &ab8500_codec_regmap);
+	if (IS_ERR(drvdata->regmap)) {
+		status = PTR_ERR(drvdata->regmap);
+		dev_err(&pdev->dev, "%s: Failed to allocate regmap: %d\n",
+			__func__, status);
+		return status;
+	}
+
 	dev_dbg(&pdev->dev, "%s: Register codec.\n", __func__);
 	status = snd_soc_register_codec(&pdev->dev, &ab8500_codec_driver,
 				ab8500_codec_dai,
-- 
cgit 


From 5c889690aa089cc0f36f5cf4abb4d4f0ed81b4da Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Fri, 19 Jul 2013 15:09:25 -0700
Subject: mm: Place preemption point in do_mlockall() loop

There is a loop in do_mlockall() that lacks a preemption point, which
means that the following can happen on non-preemptible builds of the
kernel:

> My fuzz tester keeps hitting this. Every instance shows the non-irq stack
> came in from mlockall.  I'm only seeing this on one box, but that has more
> ram (8gb) than my other machines, which might explain it.
>
> 	Dave
>
> INFO: rcu_preempt self-detected stall on CPU { 3}  (t=6500 jiffies g=470344 c=470343 q=0)
> sending NMI to all CPUs:
> NMI backtrace for cpu 3
> CPU: 3 PID: 29664 Comm: trinity-child2 Not tainted 3.11.0-rc1+ #32
> task: ffff88023e743fc0 ti: ffff88022f6f2000 task.ti: ffff88022f6f2000
> RIP: 0010:[<ffffffff810bf7d1>]  [<ffffffff810bf7d1>] trace_hardirqs_off_caller+0x21/0xb0
> RSP: 0018:ffff880244e03c30  EFLAGS: 00000046
> RAX: ffff88023e743fc0 RBX: 0000000000000001 RCX: 000000000000003c
> RDX: 000000000000000f RSI: 0000000000000004 RDI: ffffffff81033cab
> RBP: ffff880244e03c38 R08: ffff880243288a80 R09: 0000000000000001
> R10: 0000000000000000 R11: 0000000000000001 R12: ffff880243288a80
> R13: ffff8802437eda40 R14: 0000000000080000 R15: 000000000000d010
> FS:  00007f50ae33b740(0000) GS:ffff880244e00000(0000) knlGS:0000000000000000
> CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: 000000000097f000 CR3: 0000000240fa0000 CR4: 00000000001407e0
> DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
> DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
> Stack:
>  ffffffff810bf86d ffff880244e03c98 ffffffff81033cab 0000000000000096
>  000000000000d008 0000000300000002 0000000000000004 0000000000000003
>  0000000000002710 ffffffff81c50d00 ffffffff81c50d00 ffff880244fcde00
> Call Trace:
>  <IRQ>
>  [<ffffffff810bf86d>] ? trace_hardirqs_off+0xd/0x10
>  [<ffffffff81033cab>] __x2apic_send_IPI_mask+0x1ab/0x1c0
>  [<ffffffff81033cdc>] x2apic_send_IPI_all+0x1c/0x20
>  [<ffffffff81030115>] arch_trigger_all_cpu_backtrace+0x65/0xa0
>  [<ffffffff811144b1>] rcu_check_callbacks+0x331/0x8e0
>  [<ffffffff8108bfa0>] ? hrtimer_run_queues+0x20/0x180
>  [<ffffffff8109e905>] ? sched_clock_cpu+0xb5/0x100
>  [<ffffffff81069557>] update_process_times+0x47/0x80
>  [<ffffffff810bd115>] tick_sched_handle.isra.16+0x25/0x60
>  [<ffffffff810bd231>] tick_sched_timer+0x41/0x60
>  [<ffffffff8108ace1>] __run_hrtimer+0x81/0x4e0
>  [<ffffffff810bd1f0>] ? tick_sched_do_timer+0x60/0x60
>  [<ffffffff8108b93f>] hrtimer_interrupt+0xff/0x240
>  [<ffffffff8102de84>] local_apic_timer_interrupt+0x34/0x60
>  [<ffffffff81718c5f>] smp_apic_timer_interrupt+0x3f/0x60
>  [<ffffffff817178ef>] apic_timer_interrupt+0x6f/0x80
>  [<ffffffff8170e8e0>] ? retint_restore_args+0xe/0xe
>  [<ffffffff8105f101>] ? __do_softirq+0xb1/0x440
>  [<ffffffff8105f64d>] irq_exit+0xcd/0xe0
>  [<ffffffff81718c65>] smp_apic_timer_interrupt+0x45/0x60
>  [<ffffffff817178ef>] apic_timer_interrupt+0x6f/0x80
>  <EOI>
>  [<ffffffff8170e8e0>] ? retint_restore_args+0xe/0xe
>  [<ffffffff8170b830>] ? wait_for_completion_killable+0x170/0x170
>  [<ffffffff8170c853>] ? preempt_schedule_irq+0x53/0x90
>  [<ffffffff8170e9f6>] retint_kernel+0x26/0x30
>  [<ffffffff8107a523>] ? queue_work_on+0x43/0x90
>  [<ffffffff8107c369>] schedule_on_each_cpu+0xc9/0x1a0
>  [<ffffffff81167770>] ? lru_add_drain+0x50/0x50
>  [<ffffffff811677c5>] lru_add_drain_all+0x15/0x20
>  [<ffffffff81186965>] SyS_mlockall+0xa5/0x1a0
>  [<ffffffff81716e94>] tracesys+0xdd/0xe2

This commit addresses this problem by inserting the required preemption
point.

Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/mlock.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/mlock.c b/mm/mlock.c
index d63802663242..67ba6da7d0e3 100644
--- a/mm/mlock.c
+++ b/mm/mlock.c
@@ -736,6 +736,7 @@ static int do_mlockall(int flags)
 
 		/* Ignore errors */
 		mlock_fixup(vma, &prev, vma->vm_start, vma->vm_end, newflags);
+		cond_resched();
 	}
 out:
 	return 0;
-- 
cgit 


From b3f2d02598fcf16933f72a57bbba7edb22ad8eda Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Thu, 8 Aug 2013 14:37:47 -0700
Subject: rcu: Use proper cpp macro for ->gp_flags

One of the ->gp_flags assignments used a raw number rather than the
cpp macro that was intended for this purpose, which this commit fixes.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 kernel/rcutree.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 32618b3fe4e6..e0fa1920cd67 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -1452,7 +1452,7 @@ static void rcu_gp_cleanup(struct rcu_state *rsp)
 	rdp = this_cpu_ptr(rsp->rda);
 	rcu_advance_cbs(rsp, rnp, rdp);  /* Reduce false positives below. */
 	if (cpu_needs_another_gp(rsp, rdp))
-		rsp->gp_flags = 1;
+		rsp->gp_flags = RCU_GP_FLAG_INIT;
 	raw_spin_unlock_irq(&rnp->lock);
 }
 
-- 
cgit 


From 6112fe60ac1bd1e68da8cc4248289d6e48015f9b Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Fri, 20 Sep 2013 18:00:10 +0530
Subject: regmap: add helper macro to set min/max range of register

Add helper macro to set the min and max value of the register range.

This is useful when initialising the register ranges of the device like

static const struct regmap_range readable_ranges[] = {
	regmap_reg_range(DEVICE_REG0, DEVICE_REG10),
};

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/linux/regmap.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index a10380bfbeac..7d3ae2be6869 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -70,6 +70,8 @@ struct regmap_range {
 	unsigned int range_max;
 };
 
+#define regmap_reg_range(low, high) { .range_min = low, .range_max = high, }
+
 /*
  * A table of ranges including some yes ranges and some no ranges.
  * If a register belongs to a no_range, the corresponding check function
-- 
cgit 


From 49e6c574508efc9c0914077af164245163ce1638 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 09:12:52 -0700
Subject: Input: ad714x-spi - remove redundant spi_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/misc/ad714x-spi.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/input/misc/ad714x-spi.c b/drivers/input/misc/ad714x-spi.c
index 61891486067c..3a90b710e309 100644
--- a/drivers/input/misc/ad714x-spi.c
+++ b/drivers/input/misc/ad714x-spi.c
@@ -108,7 +108,6 @@ static int ad714x_spi_remove(struct spi_device *spi)
 	struct ad714x_chip *chip = spi_get_drvdata(spi);
 
 	ad714x_remove(chip);
-	spi_set_drvdata(spi, NULL);
 
 	return 0;
 }
-- 
cgit 


From 993c379219c0aa069ab046305b6b6a87a29c1d88 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 09:38:05 -0700
Subject: Input: ad7877 - remove redundant spi_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/ad7877.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c
index f3a174a83c82..69834dd3c313 100644
--- a/drivers/input/touchscreen/ad7877.c
+++ b/drivers/input/touchscreen/ad7877.c
@@ -806,7 +806,6 @@ err_free_irq:
 err_free_mem:
 	input_free_device(input_dev);
 	kfree(ts);
-	spi_set_drvdata(spi, NULL);
 	return err;
 }
 
@@ -823,7 +822,6 @@ static int ad7877_remove(struct spi_device *spi)
 	kfree(ts);
 
 	dev_dbg(&spi->dev, "unregistered touchscreen\n");
-	spi_set_drvdata(spi, NULL);
 
 	return 0;
 }
-- 
cgit 


From 3a229b70d6fdd2aebf750997a5ca4e6b8885e7f6 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 09:38:28 -0700
Subject: Input: ad7879-spi - remove redundant spi_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/ad7879-spi.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/input/touchscreen/ad7879-spi.c b/drivers/input/touchscreen/ad7879-spi.c
index 606da5bd6115..1a7b1143536e 100644
--- a/drivers/input/touchscreen/ad7879-spi.c
+++ b/drivers/input/touchscreen/ad7879-spi.c
@@ -142,7 +142,6 @@ static int ad7879_spi_remove(struct spi_device *spi)
 	struct ad7879 *ts = spi_get_drvdata(spi);
 
 	ad7879_remove(ts);
-	spi_set_drvdata(spi, NULL);
 
 	return 0;
 }
-- 
cgit 


From c7c8b533c7be077acf6cfee6d0f83ca57b55a19a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 09:38:46 -0700
Subject: Input: tsc2005 - remove redundant spi_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/tsc2005.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c
index 7213e8b07e79..811353353917 100644
--- a/drivers/input/touchscreen/tsc2005.c
+++ b/drivers/input/touchscreen/tsc2005.c
@@ -678,7 +678,6 @@ static int tsc2005_probe(struct spi_device *spi)
 err_remove_sysfs:
 	sysfs_remove_group(&spi->dev.kobj, &tsc2005_attr_group);
 err_clear_drvdata:
-	spi_set_drvdata(spi, NULL);
 	free_irq(spi->irq, ts);
 err_free_mem:
 	input_free_device(input_dev);
@@ -696,7 +695,6 @@ static int tsc2005_remove(struct spi_device *spi)
 	input_unregister_device(ts->idev);
 	kfree(ts);
 
-	spi_set_drvdata(spi, NULL);
 	return 0;
 }
 
-- 
cgit 


From 36d3c510e6f0a05d6aec6bc54eb708bc6f01c3b4 Mon Sep 17 00:00:00 2001
From: Jason Gerecke <killertofu@gmail.com>
Date: Fri, 20 Sep 2013 09:47:35 -0700
Subject: Input: wacom - support EMR and MFT sensors of Cintiq Companion Hybrid

Adds support for the sensors integrated in to the Cintiq Companion
Hybrid. These sensors use by-and-large the same protocol as the
Cintiq 24HD touch.

NOTE: The ExpressKeys on the Cintiq Companion Hybrid are wired to
both the EMR controller and CPU GPIO pins. It may be necessary to
disable their functionality in this driver if building a custom
Android kernel for this device (lest two events be sent to userspace
for every button press).

Signed-off-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/tablet/wacom_sys.c |  2 +-
 drivers/input/tablet/wacom_wac.c | 46 +++++++++++++++++++++++++++++++++++++++-
 drivers/input/tablet/wacom_wac.h |  1 +
 3 files changed, 47 insertions(+), 2 deletions(-)

diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 79b69ea47f74..7e4cc2fd83e4 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -548,7 +548,7 @@ static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_feat
 			/* MT Tablet PC touch */
 			return wacom_set_device_mode(intf, 3, 4, 4);
 		}
-		else if (features->type == WACOM_24HDT) {
+		else if (features->type == WACOM_24HDT || features->type == CINTIQ_HYBRID) {
 			return wacom_set_device_mode(intf, 18, 3, 2);
 		}
 	} else if (features->device_type == BTN_TOOL_PEN) {
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index b2aa503c16b1..45984afb040d 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -477,7 +477,7 @@ static void wacom_intuos_general(struct wacom_wac *wacom)
 	/* general pen packet */
 	if ((data[1] & 0xb8) == 0xa0) {
 		t = (data[6] << 2) | ((data[7] >> 6) & 3);
-		if (features->type >= INTUOS4S && features->type <= WACOM_24HD) {
+		if (features->type >= INTUOS4S && features->type <= CINTIQ_HYBRID) {
 			t = (t << 1) | (data[1] & 1);
 		}
 		input_report_abs(input, ABS_PRESSURE, t);
@@ -621,6 +621,22 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
 			} else {
 				input_report_abs(input, ABS_MISC, 0);
 			}
+		} else if (features->type == CINTIQ_HYBRID) {
+			/*
+			 * Do not send hardware buttons under Android. They
+			 * are already sent to the system through GPIO (and
+			 * have different meaning).
+			 */
+			input_report_key(input, BTN_1, (data[4] & 0x01));
+			input_report_key(input, BTN_2, (data[4] & 0x02));
+			input_report_key(input, BTN_3, (data[4] & 0x04));
+			input_report_key(input, BTN_4, (data[4] & 0x08));
+
+			input_report_key(input, BTN_5, (data[4] & 0x10));  /* Right  */
+			input_report_key(input, BTN_6, (data[4] & 0x20));  /* Up     */
+			input_report_key(input, BTN_7, (data[4] & 0x40));  /* Left   */
+			input_report_key(input, BTN_8, (data[4] & 0x80));  /* Down   */
+			input_report_key(input, BTN_0, (data[3] & 0x01));  /* Center */
 		} else if (features->type >= INTUOS5S && features->type <= INTUOS5L) {
 			int i;
 
@@ -1327,6 +1343,7 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
 	case WACOM_22HD:
 	case WACOM_24HD:
 	case DTK:
+	case CINTIQ_HYBRID:
 		sync = wacom_intuos_irq(wacom_wac);
 		break;
 
@@ -1765,6 +1782,24 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
 					      0, 0);
 		}
 		break;
+
+	case CINTIQ_HYBRID:
+		__set_bit(BTN_1, input_dev->keybit);
+		__set_bit(BTN_2, input_dev->keybit);
+		__set_bit(BTN_3, input_dev->keybit);
+		__set_bit(BTN_4, input_dev->keybit);
+
+		__set_bit(BTN_5, input_dev->keybit);
+		__set_bit(BTN_6, input_dev->keybit);
+		__set_bit(BTN_7, input_dev->keybit);
+		__set_bit(BTN_8, input_dev->keybit);
+		__set_bit(BTN_0, input_dev->keybit);
+
+		input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
+		__set_bit(INPUT_PROP_DIRECT, input_dev->propbit);
+
+		wacom_setup_cintiq(wacom_wac);
+		break;
 	}
 	return 0;
 }
@@ -2125,6 +2160,13 @@ static const struct wacom_features wacom_features_0x301 =
 static const struct wacom_features wacom_features_0x6004 =
 	{ "ISD-V4",               WACOM_PKGLEN_GRAPHIRE,  12800,  8000,  255,
 	  0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0x0307 =
+	{ "Wacom ISDv5 307", WACOM_PKGLEN_INTUOS,  59552,  33848, 2047,
+	  63, CINTIQ_HYBRID, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES,
+	  .oVid = USB_VENDOR_ID_WACOM, .oPid = 0x309 };
+static const struct wacom_features wacom_features_0x0309 =
+	{ "Wacom ISDv5 309", .type = WACOM_24HDT, /* Touch */
+	  .oVid = USB_VENDOR_ID_WACOM, .oPid = 0x0307, .touch_max = 10 };
 
 #define USB_DEVICE_WACOM(prod)					\
 	USB_DEVICE(USB_VENDOR_ID_WACOM, prod),			\
@@ -2257,6 +2299,8 @@ const struct usb_device_id wacom_ids[] = {
 	{ USB_DEVICE_WACOM(0xF8) },
 	{ USB_DEVICE_DETAILED(0xF6, USB_CLASS_HID, 0, 0) },
 	{ USB_DEVICE_WACOM(0xFA) },
+	{ USB_DEVICE_WACOM(0x0307) },
+	{ USB_DEVICE_DETAILED(0x0309, USB_CLASS_HID, 0, 0) },
 	{ USB_DEVICE_LENOVO(0x6004) },
 	{ }
 };
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index dfc9e08e7f70..90ce10dadb33 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -80,6 +80,7 @@ enum {
 	WACOM_22HD,
 	DTK,
 	WACOM_24HD,
+	CINTIQ_HYBRID,
 	CINTIQ,
 	WACOM_BEE,
 	WACOM_13HD,
-- 
cgit 


From 4eb1830b492842023b4529bec901f576a4d9ed19 Mon Sep 17 00:00:00 2001
From: Jason Gerecke <killertofu@gmail.com>
Date: Fri, 20 Sep 2013 09:48:46 -0700
Subject: Input: wacom - send proper tablet state info when pen leaves
 proximity

The EMR sensor of Intuos4 and newer devices can send a packet with
0x20 in its second byte which contains only location information.
This packet is sent when the pen is too far away to reliably obtain
other information. Because only the location is updated userspace
will continue to see stale information for other values, most notably
TOUCH, PRESSURE, and DISTANCE.

This patch ensures userspace is not left with stale device state
information when the pen re-enters proximity (possibly leading to
the assumption the pen is still in contact even though it is
actually hovering).

Signed-off-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/tablet/wacom_wac.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 45984afb040d..102480621079 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -427,6 +427,13 @@ static int wacom_intuos_inout(struct wacom_wac *wacom)
 			(features->type == WACOM_21UX2))
 		return 1;
 
+	/* Range Report */
+	if ((data[1] & 0xfe) == 0x20) {
+		input_report_key(input, BTN_TOUCH, 0);
+		input_report_abs(input, ABS_PRESSURE, 0);
+		input_report_abs(input, ABS_DISTANCE, wacom->features.distance_max);
+	}
+
 	/* Exit report */
 	if ((data[1] & 0xfe) == 0x80) {
 		if (features->quirks == WACOM_QUIRK_MULTI_INPUT)
-- 
cgit 


From 1b2faaf7e219fc2905d75afcd4c815e5d39eda80 Mon Sep 17 00:00:00 2001
From: Ping Cheng <pinglinux@gmail.com>
Date: Fri, 20 Sep 2013 09:49:46 -0700
Subject: Input: wacom - testing result shows get_report is unnecessary.

Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/tablet/wacom_sys.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 7e4cc2fd83e4..f8b30d0cb210 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -524,9 +524,6 @@ static int wacom_set_device_mode(struct usb_interface *intf, int report_id, int
 
 		error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT,
 		                         report_id, rep_data, length, 1);
-		if (error >= 0)
-			error = wacom_get_report(intf, WAC_HID_FEATURE_REPORT,
-			                         report_id, rep_data, length, 1);
 	} while ((error < 0 || rep_data[1] != mode) && limit++ < WAC_MSG_RETRIES);
 
 	kfree(rep_data);
-- 
cgit 


From c2b0c273e59f66ded73fe04a9460fa1bcd494aa5 Mon Sep 17 00:00:00 2001
From: Ping Cheng <pinglinux@gmail.com>
Date: Fri, 20 Sep 2013 09:50:14 -0700
Subject: Input: wacom - LED is only supported through digitizer interface

Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/tablet/wacom_sys.c | 24 ++++++++++++++----------
 1 file changed, 14 insertions(+), 10 deletions(-)

diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index f8b30d0cb210..e21197be6a5a 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -978,14 +978,17 @@ static int wacom_initialize_leds(struct wacom *wacom)
 	case INTUOS5S:
 	case INTUOS5:
 	case INTUOS5L:
-		wacom->led.select[0] = 0;
-		wacom->led.select[1] = 0;
-		wacom->led.llv = 32;
-		wacom->led.hlv = 0;
-		wacom->led.img_lum = 0;
-
-		error = sysfs_create_group(&wacom->intf->dev.kobj,
-					   &intuos5_led_attr_group);
+		if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN) {
+			wacom->led.select[0] = 0;
+			wacom->led.select[1] = 0;
+			wacom->led.llv = 32;
+			wacom->led.hlv = 0;
+			wacom->led.img_lum = 0;
+
+			error = sysfs_create_group(&wacom->intf->dev.kobj,
+						  &intuos5_led_attr_group);
+		} else
+			return 0;
 		break;
 
 	default:
@@ -1021,8 +1024,9 @@ static void wacom_destroy_leds(struct wacom *wacom)
 	case INTUOS5S:
 	case INTUOS5:
 	case INTUOS5L:
-		sysfs_remove_group(&wacom->intf->dev.kobj,
-				   &intuos5_led_attr_group);
+		if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN)
+			sysfs_remove_group(&wacom->intf->dev.kobj,
+					   &intuos5_led_attr_group);
 		break;
 	}
 }
-- 
cgit 


From 9a35c411f904a662d3a39edea406d95ead8acea6 Mon Sep 17 00:00:00 2001
From: Ping Cheng <pinglinux@gmail.com>
Date: Fri, 20 Sep 2013 09:51:56 -0700
Subject: Input: wacom - add support for three new Intuos Pro devices

Acked-by: Chris Bagwell <chris@cnpbagwell.com>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/tablet/wacom_sys.c | 10 +++++--
 drivers/input/tablet/wacom_wac.c | 61 +++++++++++++++++++++++++++++++---------
 drivers/input/tablet/wacom_wac.h |  3 ++
 3 files changed, 58 insertions(+), 16 deletions(-)

diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index e21197be6a5a..63971b8188b0 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -716,7 +716,7 @@ static int wacom_led_control(struct wacom *wacom)
 		return -ENOMEM;
 
 	if (wacom->wacom_wac.features.type >= INTUOS5S &&
-	    wacom->wacom_wac.features.type <= INTUOS5L)	{
+	    wacom->wacom_wac.features.type <= INTUOSPL) {
 		/*
 		 * Touch Ring and crop mark LED luminance may take on
 		 * one of four values:
@@ -978,6 +978,9 @@ static int wacom_initialize_leds(struct wacom *wacom)
 	case INTUOS5S:
 	case INTUOS5:
 	case INTUOS5L:
+	case INTUOSPS:
+	case INTUOSPM:
+	case INTUOSPL:
 		if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN) {
 			wacom->led.select[0] = 0;
 			wacom->led.select[1] = 0;
@@ -1024,6 +1027,9 @@ static void wacom_destroy_leds(struct wacom *wacom)
 	case INTUOS5S:
 	case INTUOS5:
 	case INTUOS5L:
+	case INTUOSPS:
+	case INTUOSPM:
+	case INTUOSPL:
 		if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN)
 			sysfs_remove_group(&wacom->intf->dev.kobj,
 					   &intuos5_led_attr_group);
@@ -1299,7 +1305,7 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
 	 * HID descriptor. If this is the touch interface (wMaxPacketSize
 	 * of WACOM_PKGLEN_BBTOUCH3), override the table values.
 	 */
-	if (features->type >= INTUOS5S && features->type <= INTUOS5L) {
+	if (features->type >= INTUOS5S && features->type <= INTUOSPL) {
 		if (endpoint->wMaxPacketSize == WACOM_PKGLEN_BBTOUCH3) {
 			features->device_type = BTN_TOOL_FINGER;
 			features->pktlen = WACOM_PKGLEN_BBTOUCH3;
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 102480621079..9c8eded2e504 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -644,14 +644,14 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
 			input_report_key(input, BTN_7, (data[4] & 0x40));  /* Left   */
 			input_report_key(input, BTN_8, (data[4] & 0x80));  /* Down   */
 			input_report_key(input, BTN_0, (data[3] & 0x01));  /* Center */
-		} else if (features->type >= INTUOS5S && features->type <= INTUOS5L) {
+		} else if (features->type >= INTUOS5S && features->type <= INTUOSPL) {
 			int i;
 
 			/* Touch ring mode switch has no capacitive sensor */
 			input_report_key(input, BTN_0, (data[3] & 0x01));
 
 			/*
-			 * ExpressKeys on Intuos5 have a capacitive sensor in
+			 * ExpressKeys on Intuos5/Intuos Pro have a capacitive sensor in
 			 * addition to the mechanical switch. Switch data is
 			 * stored in data[4], capacitive data in data[5].
 			 */
@@ -739,7 +739,9 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
 	     features->type == INTUOS4 ||
 	     features->type == INTUOS4S ||
 	     features->type == INTUOS5 ||
-	     features->type == INTUOS5S)) {
+	     features->type == INTUOS5S ||
+	     features->type == INTUOSPM ||
+	     features->type == INTUOSPS)) {
 
 		return 0;
 	}
@@ -792,8 +794,7 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
 
 		} else if (wacom->tool[idx] == BTN_TOOL_MOUSE) {
 			/* I4 mouse */
-			if ((features->type >= INTUOS4S && features->type <= INTUOS4L) ||
-			    (features->type >= INTUOS5S && features->type <= INTUOS5L)) {
+			if (features->type >= INTUOS4S && features->type <= INTUOSPL) {
 				input_report_key(input, BTN_LEFT,   data[6] & 0x01);
 				input_report_key(input, BTN_MIDDLE, data[6] & 0x02);
 				input_report_key(input, BTN_RIGHT,  data[6] & 0x04);
@@ -820,7 +821,8 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
 				}
 			}
 		} else if ((features->type < INTUOS3S || features->type == INTUOS3L ||
-				features->type == INTUOS4L || features->type == INTUOS5L) &&
+				features->type == INTUOS4L || features->type == INTUOS5L ||
+				features->type == INTUOSPL) &&
 			   wacom->tool[idx] == BTN_TOOL_LENS) {
 			/* Lens cursor packets */
 			input_report_key(input, BTN_LEFT,   data[8] & 0x01);
@@ -1130,6 +1132,7 @@ static int wacom_bpt_touch(struct wacom_wac *wacom)
 
 static void wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data)
 {
+	struct wacom_features *features = &wacom->features;
 	struct input_dev *input = wacom->input;
 	bool touch = data[1] & 0x80;
 	int slot = input_mt_get_slot_by_key(input, data[0]);
@@ -1145,14 +1148,23 @@ static void wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data)
 	if (touch) {
 		int x = (data[2] << 4) | (data[4] >> 4);
 		int y = (data[3] << 4) | (data[4] & 0x0f);
-		int a = data[5];
+		int width, height;
 
-		// "a" is a scaled-down area which we assume is roughly
-		// circular and which can be described as: a=(pi*r^2)/C.
-		int x_res  = input_abs_get_res(input, ABS_X);
-		int y_res  = input_abs_get_res(input, ABS_Y);
-		int width  = 2 * int_sqrt(a * WACOM_CONTACT_AREA_SCALE);
-		int height = width * y_res / x_res;
+		if (features->type >= INTUOSPS && features->type <= INTUOSPL) {
+			width  = data[5];
+			height = data[6];
+		} else {
+			/*
+			 * "a" is a scaled-down area which we assume is
+			 * roughly circular and which can be described as:
+			 * a=(pi*r^2)/C.
+			 */
+			int a = data[5];
+			int x_res  = input_abs_get_res(input, ABS_X);
+			int y_res  = input_abs_get_res(input, ABS_Y);
+			width  = 2 * int_sqrt(a * WACOM_CONTACT_AREA_SCALE);
+			height = width * y_res / x_res;
+		}
 
 		input_report_abs(input, ABS_MT_POSITION_X, x);
 		input_report_abs(input, ABS_MT_POSITION_Y, y);
@@ -1361,6 +1373,9 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
 	case INTUOS5S:
 	case INTUOS5:
 	case INTUOS5L:
+	case INTUOSPS:
+	case INTUOSPM:
+	case INTUOSPL:
 		if (len == WACOM_PKGLEN_BBTOUCH3)
 			sync = wacom_bpt3_touch(wacom_wac);
 		else
@@ -1444,7 +1459,7 @@ void wacom_setup_device_quirks(struct wacom_features *features)
 
 	/* these device have multiple inputs */
 	if (features->type >= WIRELESS ||
-	    (features->type >= INTUOS5S && features->type <= INTUOS5L) ||
+	    (features->type >= INTUOS5S && features->type <= INTUOSPL) ||
 	    (features->oVid && features->oPid))
 		features->quirks |= WACOM_QUIRK_MULTI_INPUT;
 
@@ -1651,6 +1666,8 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
 
 	case INTUOS5:
 	case INTUOS5L:
+	case INTUOSPM:
+	case INTUOSPL:
 		if (features->device_type == BTN_TOOL_PEN) {
 			__set_bit(BTN_7, input_dev->keybit);
 			__set_bit(BTN_8, input_dev->keybit);
@@ -1658,6 +1675,7 @@ int wacom_setup_input_capabilities(struct input_dev *input_dev,
 		/* fall through */
 
 	case INTUOS5S:
+	case INTUOSPS:
 		__set_bit(INPUT_PROP_POINTER, input_dev->propbit);
 
 		if (features->device_type == BTN_TOOL_PEN) {
@@ -1994,6 +2012,18 @@ static const struct wacom_features wacom_features_0x29 =
 static const struct wacom_features wacom_features_0x2A =
 	{ "Wacom Intuos5 M", WACOM_PKGLEN_INTUOS,  44704, 27940, 2047,
 	  63, INTUOS5, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0x314 =
+	{ "Wacom Intuos Pro S", WACOM_PKGLEN_INTUOS,  31496, 19685, 2047,
+	  63, INTUOSPS, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES,
+	  .touch_max = 16 };
+static const struct wacom_features wacom_features_0x315 =
+	{ "Wacom Intuos Pro M", WACOM_PKGLEN_INTUOS,  44704, 27940, 2047,
+	  63, INTUOSPM, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES,
+	  .touch_max = 16 };
+static const struct wacom_features wacom_features_0x317 =
+	{ "Wacom Intuos Pro L", WACOM_PKGLEN_INTUOS,  65024, 40640, 2047,
+	  63, INTUOSPL, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES,
+	  .touch_max = 16 };
 static const struct wacom_features wacom_features_0xF4 =
 	{ "Wacom Cintiq 24HD",       WACOM_PKGLEN_INTUOS,   104480, 65600, 2047,
 	  63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
@@ -2300,6 +2330,9 @@ const struct usb_device_id wacom_ids[] = {
 	{ USB_DEVICE_WACOM(0x300) },
 	{ USB_DEVICE_WACOM(0x301) },
 	{ USB_DEVICE_WACOM(0x304) },
+	{ USB_DEVICE_DETAILED(0x314, USB_CLASS_HID, 0, 0) },
+	{ USB_DEVICE_DETAILED(0x315, USB_CLASS_HID, 0, 0) },
+	{ USB_DEVICE_DETAILED(0x317, USB_CLASS_HID, 0, 0) },
 	{ USB_DEVICE_WACOM(0x4001) },
 	{ USB_DEVICE_WACOM(0x47) },
 	{ USB_DEVICE_WACOM(0xF4) },
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index 90ce10dadb33..2a432e688e51 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -76,6 +76,9 @@ enum {
 	INTUOS5S,
 	INTUOS5,
 	INTUOS5L,
+	INTUOSPS,
+	INTUOSPM,
+	INTUOSPL,
 	WACOM_21UX2,
 	WACOM_22HD,
 	DTK,
-- 
cgit 


From bc407334e9a6a745de5360395282beb2690adf48 Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Fri, 20 Sep 2013 18:00:13 +0530
Subject: regulator: as3722: add regulator driver for AMS AS3722

The AMS AS3722 is a compact system PMU suitable for mobile phones,
tablets etc. It has 4 DCDC step down regulators, 3 DCDC step down
controller, 11 LDOs.

Add a driver to support accessing the DCDC/LDOs found on the AMS
AS3722 PMIC using regulators.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Florian Lobmaier <florian.lobmaier@ams.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 .../bindings/regulator/as3722-regulator.txt        |  91 ++
 drivers/regulator/Kconfig                          |   8 +
 drivers/regulator/Makefile                         |   1 +
 drivers/regulator/as3722-regulator.c               | 917 +++++++++++++++++++++
 4 files changed, 1017 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/regulator/as3722-regulator.txt
 create mode 100644 drivers/regulator/as3722-regulator.c

diff --git a/Documentation/devicetree/bindings/regulator/as3722-regulator.txt b/Documentation/devicetree/bindings/regulator/as3722-regulator.txt
new file mode 100644
index 000000000000..caad0c8a258d
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/as3722-regulator.txt
@@ -0,0 +1,91 @@
+Regulator of AMS AS3722 PMIC.
+Name of the regulator subnode must be "regulators".
+
+Optional properties:
+--------------------
+The input supply of regulators are the optional properties on the
+regulator node. The AS3722 is having 7 DCDC step-down regulators as
+sd[0-6], 10 LDOs as ldo[0-7], ldo[9-11]. The input supply of these
+regulators are provided through following properties:
+vsup-sd2-supply: Input supply for SD2.
+vsup-sd3-supply: Input supply for SD3.
+vsup-sd4-supply: Input supply for SD4.
+vsup-sd5-supply: Input supply for SD5.
+vin-ldo0-supply: Input supply for LDO0.
+vin-ldo1-6-supply: Input supply for LDO1 and LDO6.
+vin-ldo2-5-7-supply: Input supply for LDO2, LDO5 and LDO7.
+vin-ldo3-4-supply: Input supply for LDO3 and LDO4.
+vin-ldo9-10-supply: Input supply for LDO9 and LDO10.
+vin-ldo11-supply: Input supply for LDO11.
+
+Optional nodes:
+--------------
+- regulators : Must contain a sub-node per regulator from the list below.
+	       Each sub-node should contain the constraints and initialization
+	       information for that regulator. See regulator.txt for a
+	       description of standard properties for these sub-nodes.
+	       Additional custom properties  are listed below.
+	       sd[0-6], ldo[0-7], ldo[9-11].
+
+	       Optional sub-node properties:
+	       ----------------------------
+		ams,ext-control: External control of the rail. The option of
+			this properties will tell which external input is
+			controlling this rail. Valid values are 0, 1, 2 ad 3.
+			0: There is no external control of this rail.
+			1: Rail is controlled by ENABLE1 input pin.
+			2: Rail is controlled by ENABLE2 input pin.
+			3: Rail is controlled by ENABLE3 input pin.
+		ams,enable-tracking: Enable tracking with SD1, only supported
+			by LDO3.
+
+Example:
+-------
+	ams3722: ams3722 {
+		compatible = "ams,as3722";
+		reg = <0x40>;
+		...
+
+		regulators {
+			vsup-sd2-supply = <...>;
+			...
+
+			sd0 {
+				regulator-name = "vdd_cpu";
+				regulator-min-microvolt = <700000>;
+				regulator-max-microvolt = <1400000>;
+				regulator-always-on;
+				ams,ext-control = <2>;
+			};
+
+			sd1 {
+				regulator-name = "vdd_core";
+				regulator-min-microvolt = <700000>;
+				regulator-max-microvolt = <1400000>;
+				regulator-always-on;
+				ams,ext-control = <1>;
+			};
+
+			sd2 {
+				regulator-name = "vddio_ddr";
+				regulator-min-microvolt = <1350000>;
+				regulator-max-microvolt = <1350000>;
+				regulator-always-on;
+			};
+
+			sd4 {
+				regulator-name = "avdd-hdmi-pex";
+				regulator-min-microvolt = <1050000>;
+				regulator-max-microvolt = <1050000>;
+				regulator-always-on;
+			};
+
+			sd5 {
+				regulator-name = "vdd-1v8";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+			....
+		};
+	};
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index dfe58096b374..9869064f9f03 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -133,6 +133,14 @@ config REGULATOR_AS3711
 	  This driver provides support for the voltage regulators on the
 	  AS3711 PMIC
 
+config REGULATOR_AS3722
+	tristate "AMS AS3722 PMIC Regulators"
+	depends on MFD_AS3722
+	help
+	  This driver provides support for the voltage regulators on the
+	  AS3722 PMIC. This will enable support for all the software
+	  controllable DCDC/LDO regulators.
+
 config REGULATOR_DA903X
 	tristate "Dialog Semiconductor DA9030/DA9034 regulators"
 	depends on PMIC_DA903X
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 185cce246022..0b233bbe6734 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -18,6 +18,7 @@ obj-$(CONFIG_REGULATOR_AD5398) += ad5398.o
 obj-$(CONFIG_REGULATOR_ANATOP) += anatop-regulator.o
 obj-$(CONFIG_REGULATOR_ARIZONA) += arizona-micsupp.o arizona-ldo1.o
 obj-$(CONFIG_REGULATOR_AS3711) += as3711-regulator.o
+obj-$(CONFIG_REGULATOR_AS3722) += as3722-regulator.o
 obj-$(CONFIG_REGULATOR_DA903X)	+= da903x.o
 obj-$(CONFIG_REGULATOR_DA9052)	+= da9052-regulator.o
 obj-$(CONFIG_REGULATOR_DA9055)	+= da9055-regulator.o
diff --git a/drivers/regulator/as3722-regulator.c b/drivers/regulator/as3722-regulator.c
new file mode 100644
index 000000000000..16a5d26a2d35
--- /dev/null
+++ b/drivers/regulator/as3722-regulator.c
@@ -0,0 +1,917 @@
+/*
+ * Voltage regulator support for AMS AS3722 PMIC
+ *
+ * Copyright (C) 2013 ams
+ *
+ * Author: Florian Lobmaier <florian.lobmaier@ams.com>
+ * Author: Laxman Dewangan <ldewangan@nvidia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mfd/as3722.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/slab.h>
+
+/* Regulator IDs */
+enum as3722_regulators_id {
+	AS3722_REGULATOR_ID_SD0,
+	AS3722_REGULATOR_ID_SD1,
+	AS3722_REGULATOR_ID_SD2,
+	AS3722_REGULATOR_ID_SD3,
+	AS3722_REGULATOR_ID_SD4,
+	AS3722_REGULATOR_ID_SD5,
+	AS3722_REGULATOR_ID_SD6,
+	AS3722_REGULATOR_ID_LDO0,
+	AS3722_REGULATOR_ID_LDO1,
+	AS3722_REGULATOR_ID_LDO2,
+	AS3722_REGULATOR_ID_LDO3,
+	AS3722_REGULATOR_ID_LDO4,
+	AS3722_REGULATOR_ID_LDO5,
+	AS3722_REGULATOR_ID_LDO6,
+	AS3722_REGULATOR_ID_LDO7,
+	AS3722_REGULATOR_ID_LDO9,
+	AS3722_REGULATOR_ID_LDO10,
+	AS3722_REGULATOR_ID_LDO11,
+	AS3722_REGULATOR_ID_MAX,
+};
+
+struct as3722_register_mapping {
+	u8 regulator_id;
+	const char *name;
+	const char *sname;
+	u8 vsel_reg;
+	u8 vsel_mask;
+	int n_voltages;
+	u32 enable_reg;
+	u8 enable_mask;
+	u32 control_reg;
+	u8 mode_mask;
+	u32 sleep_ctrl_reg;
+	u8 sleep_ctrl_mask;
+};
+
+struct as3722_regulator_config_data {
+	struct regulator_init_data *reg_init;
+	bool enable_tracking;
+	int ext_control;
+};
+
+struct as3722_regulators {
+	struct device *dev;
+	struct as3722 *as3722;
+	struct regulator_dev *rdevs[AS3722_REGULATOR_ID_MAX];
+	struct regulator_desc desc[AS3722_REGULATOR_ID_MAX];
+	struct as3722_regulator_config_data
+			reg_config_data[AS3722_REGULATOR_ID_MAX];
+};
+
+static const struct as3722_register_mapping as3722_reg_lookup[] = {
+	{
+		.regulator_id = AS3722_REGULATOR_ID_SD0,
+		.name = "as3722-sd0",
+		.vsel_reg = AS3722_SD0_VOLTAGE_REG,
+		.vsel_mask = AS3722_SD_VSEL_MASK,
+		.enable_reg = AS3722_SD_CONTROL_REG,
+		.enable_mask = AS3722_SDn_CTRL(0),
+		.sleep_ctrl_reg = AS3722_ENABLE_CTRL1_REG,
+		.sleep_ctrl_mask = AS3722_SD0_EXT_ENABLE_MASK,
+		.control_reg = AS3722_SD0_CONTROL_REG,
+		.mode_mask = AS3722_SD0_MODE_FAST,
+		.n_voltages = AS3722_SD0_VSEL_MAX,
+	},
+	{
+		.regulator_id = AS3722_REGULATOR_ID_SD1,
+		.name = "as3722-sd1",
+		.vsel_reg = AS3722_SD1_VOLTAGE_REG,
+		.vsel_mask = AS3722_SD_VSEL_MASK,
+		.enable_reg = AS3722_SD_CONTROL_REG,
+		.enable_mask = AS3722_SDn_CTRL(1),
+		.sleep_ctrl_reg = AS3722_ENABLE_CTRL1_REG,
+		.sleep_ctrl_mask = AS3722_SD1_EXT_ENABLE_MASK,
+		.control_reg = AS3722_SD1_CONTROL_REG,
+		.mode_mask = AS3722_SD1_MODE_FAST,
+		.n_voltages = AS3722_SD0_VSEL_MAX,
+	},
+	{
+		.regulator_id = AS3722_REGULATOR_ID_SD2,
+		.name = "as3722-sd2",
+		.sname = "vsup-sd2",
+		.vsel_reg = AS3722_SD2_VOLTAGE_REG,
+		.vsel_mask = AS3722_SD_VSEL_MASK,
+		.enable_reg = AS3722_SD_CONTROL_REG,
+		.enable_mask = AS3722_SDn_CTRL(2),
+		.sleep_ctrl_reg = AS3722_ENABLE_CTRL1_REG,
+		.sleep_ctrl_mask = AS3722_SD2_EXT_ENABLE_MASK,
+		.control_reg = AS3722_SD23_CONTROL_REG,
+		.mode_mask = AS3722_SD2_MODE_FAST,
+		.n_voltages = AS3722_SD2_VSEL_MAX,
+	},
+	{
+		.regulator_id = AS3722_REGULATOR_ID_SD3,
+		.name = "as3722-sd3",
+		.sname = "vsup-sd3",
+		.vsel_reg = AS3722_SD3_VOLTAGE_REG,
+		.vsel_mask = AS3722_SD_VSEL_MASK,
+		.enable_reg = AS3722_SD_CONTROL_REG,
+		.enable_mask = AS3722_SDn_CTRL(3),
+		.sleep_ctrl_reg = AS3722_ENABLE_CTRL1_REG,
+		.sleep_ctrl_mask = AS3722_SD3_EXT_ENABLE_MASK,
+		.control_reg = AS3722_SD23_CONTROL_REG,
+		.mode_mask = AS3722_SD3_MODE_FAST,
+		.n_voltages = AS3722_SD2_VSEL_MAX,
+	},
+	{
+		.regulator_id = AS3722_REGULATOR_ID_SD4,
+		.name = "as3722-sd4",
+		.sname = "vsup-sd4",
+		.vsel_reg = AS3722_SD4_VOLTAGE_REG,
+		.vsel_mask = AS3722_SD_VSEL_MASK,
+		.enable_reg = AS3722_SD_CONTROL_REG,
+		.enable_mask = AS3722_SDn_CTRL(4),
+		.sleep_ctrl_reg = AS3722_ENABLE_CTRL2_REG,
+		.sleep_ctrl_mask = AS3722_SD4_EXT_ENABLE_MASK,
+		.control_reg = AS3722_SD4_CONTROL_REG,
+		.mode_mask = AS3722_SD4_MODE_FAST,
+		.n_voltages = AS3722_SD2_VSEL_MAX,
+	},
+	{
+		.regulator_id = AS3722_REGULATOR_ID_SD5,
+		.name = "as3722-sd5",
+		.sname = "vsup-sd5",
+		.vsel_reg = AS3722_SD5_VOLTAGE_REG,
+		.vsel_mask = AS3722_SD_VSEL_MASK,
+		.enable_reg = AS3722_SD_CONTROL_REG,
+		.enable_mask = AS3722_SDn_CTRL(5),
+		.sleep_ctrl_reg = AS3722_ENABLE_CTRL2_REG,
+		.sleep_ctrl_mask = AS3722_SD5_EXT_ENABLE_MASK,
+		.control_reg = AS3722_SD5_CONTROL_REG,
+		.mode_mask = AS3722_SD5_MODE_FAST,
+		.n_voltages = AS3722_SD2_VSEL_MAX,
+	},
+	{
+		.regulator_id = AS3722_REGULATOR_ID_SD6,
+		.name = "as3722-sd6",
+		.vsel_reg = AS3722_SD6_VOLTAGE_REG,
+		.vsel_mask = AS3722_SD_VSEL_MASK,
+		.enable_reg = AS3722_SD_CONTROL_REG,
+		.enable_mask = AS3722_SDn_CTRL(6),
+		.sleep_ctrl_reg = AS3722_ENABLE_CTRL2_REG,
+		.sleep_ctrl_mask = AS3722_SD6_EXT_ENABLE_MASK,
+		.control_reg = AS3722_SD6_CONTROL_REG,
+		.mode_mask = AS3722_SD6_MODE_FAST,
+		.n_voltages = AS3722_SD0_VSEL_MAX,
+	},
+	{
+		.regulator_id = AS3722_REGULATOR_ID_LDO0,
+		.name = "as3722-ldo0",
+		.sname = "vin-ldo0",
+		.vsel_reg = AS3722_LDO0_VOLTAGE_REG,
+		.vsel_mask = AS3722_LDO0_VSEL_MASK,
+		.enable_reg = AS3722_LDOCONTROL0_REG,
+		.enable_mask = AS3722_LDO0_CTRL,
+		.sleep_ctrl_reg = AS3722_ENABLE_CTRL3_REG,
+		.sleep_ctrl_mask = AS3722_LDO0_EXT_ENABLE_MASK,
+		.n_voltages = AS3722_LDO0_NUM_VOLT,
+	},
+	{
+		.regulator_id = AS3722_REGULATOR_ID_LDO1,
+		.name = "as3722-ldo1",
+		.sname = "vin-ldo1-6",
+		.vsel_reg = AS3722_LDO1_VOLTAGE_REG,
+		.vsel_mask = AS3722_LDO_VSEL_MASK,
+		.enable_reg = AS3722_LDOCONTROL0_REG,
+		.enable_mask = AS3722_LDO1_CTRL,
+		.sleep_ctrl_reg = AS3722_ENABLE_CTRL3_REG,
+		.sleep_ctrl_mask = AS3722_LDO1_EXT_ENABLE_MASK,
+		.n_voltages = AS3722_LDO_NUM_VOLT,
+	},
+	{
+		.regulator_id = AS3722_REGULATOR_ID_LDO2,
+		.name = "as3722-ldo2",
+		.sname = "vin-ldo2-5-7",
+		.vsel_reg = AS3722_LDO2_VOLTAGE_REG,
+		.vsel_mask = AS3722_LDO_VSEL_MASK,
+		.enable_reg = AS3722_LDOCONTROL0_REG,
+		.enable_mask = AS3722_LDO2_CTRL,
+		.sleep_ctrl_reg = AS3722_ENABLE_CTRL3_REG,
+		.sleep_ctrl_mask = AS3722_LDO2_EXT_ENABLE_MASK,
+		.n_voltages = AS3722_LDO_NUM_VOLT,
+	},
+	{
+		.regulator_id = AS3722_REGULATOR_ID_LDO3,
+		.name = "as3722-ldo3",
+		.name = "vin-ldo3-4",
+		.vsel_reg = AS3722_LDO3_VOLTAGE_REG,
+		.vsel_mask = AS3722_LDO3_VSEL_MASK,
+		.enable_reg = AS3722_LDOCONTROL0_REG,
+		.enable_mask = AS3722_LDO3_CTRL,
+		.sleep_ctrl_reg = AS3722_ENABLE_CTRL3_REG,
+		.sleep_ctrl_mask = AS3722_LDO3_EXT_ENABLE_MASK,
+		.n_voltages = AS3722_LDO3_NUM_VOLT,
+	},
+	{
+		.regulator_id = AS3722_REGULATOR_ID_LDO4,
+		.name = "as3722-ldo4",
+		.name = "vin-ldo3-4",
+		.vsel_reg = AS3722_LDO4_VOLTAGE_REG,
+		.vsel_mask = AS3722_LDO_VSEL_MASK,
+		.enable_reg = AS3722_LDOCONTROL0_REG,
+		.enable_mask = AS3722_LDO4_CTRL,
+		.sleep_ctrl_reg = AS3722_ENABLE_CTRL4_REG,
+		.sleep_ctrl_mask = AS3722_LDO4_EXT_ENABLE_MASK,
+		.n_voltages = AS3722_LDO_NUM_VOLT,
+	},
+	{
+		.regulator_id = AS3722_REGULATOR_ID_LDO5,
+		.name = "as3722-ldo5",
+		.sname = "vin-ldo2-5-7",
+		.vsel_reg = AS3722_LDO5_VOLTAGE_REG,
+		.vsel_mask = AS3722_LDO_VSEL_MASK,
+		.enable_reg = AS3722_LDOCONTROL0_REG,
+		.enable_mask = AS3722_LDO5_CTRL,
+		.sleep_ctrl_reg = AS3722_ENABLE_CTRL4_REG,
+		.sleep_ctrl_mask = AS3722_LDO5_EXT_ENABLE_MASK,
+		.n_voltages = AS3722_LDO_NUM_VOLT,
+	},
+	{
+		.regulator_id = AS3722_REGULATOR_ID_LDO6,
+		.name = "as3722-ldo6",
+		.sname = "vin-ldo1-6",
+		.vsel_reg = AS3722_LDO6_VOLTAGE_REG,
+		.vsel_mask = AS3722_LDO_VSEL_MASK,
+		.enable_reg = AS3722_LDOCONTROL0_REG,
+		.enable_mask = AS3722_LDO6_CTRL,
+		.sleep_ctrl_reg = AS3722_ENABLE_CTRL4_REG,
+		.sleep_ctrl_mask = AS3722_LDO6_EXT_ENABLE_MASK,
+		.n_voltages = AS3722_LDO_NUM_VOLT,
+	},
+	{
+		.regulator_id = AS3722_REGULATOR_ID_LDO7,
+		.name = "as3722-ldo7",
+		.sname = "vin-ldo2-5-7",
+		.vsel_reg = AS3722_LDO7_VOLTAGE_REG,
+		.vsel_mask = AS3722_LDO_VSEL_MASK,
+		.enable_reg = AS3722_LDOCONTROL0_REG,
+		.enable_mask = AS3722_LDO7_CTRL,
+		.sleep_ctrl_reg = AS3722_ENABLE_CTRL4_REG,
+		.sleep_ctrl_mask = AS3722_LDO7_EXT_ENABLE_MASK,
+		.n_voltages = AS3722_LDO_NUM_VOLT,
+	},
+	{
+		.regulator_id = AS3722_REGULATOR_ID_LDO9,
+		.name = "as3722-ldo9",
+		.sname = "vin-ldo9-10",
+		.vsel_reg = AS3722_LDO9_VOLTAGE_REG,
+		.vsel_mask = AS3722_LDO_VSEL_MASK,
+		.enable_reg = AS3722_LDOCONTROL1_REG,
+		.enable_mask = AS3722_LDO9_CTRL,
+		.sleep_ctrl_reg = AS3722_ENABLE_CTRL5_REG,
+		.sleep_ctrl_mask = AS3722_LDO9_EXT_ENABLE_MASK,
+		.n_voltages = AS3722_LDO_NUM_VOLT,
+	},
+	{
+		.regulator_id = AS3722_REGULATOR_ID_LDO10,
+		.name = "as3722-ldo10",
+		.sname = "vin-ldo9-10",
+		.vsel_reg = AS3722_LDO10_VOLTAGE_REG,
+		.vsel_mask = AS3722_LDO_VSEL_MASK,
+		.enable_reg = AS3722_LDOCONTROL1_REG,
+		.enable_mask = AS3722_LDO10_CTRL,
+		.sleep_ctrl_reg = AS3722_ENABLE_CTRL5_REG,
+		.sleep_ctrl_mask = AS3722_LDO10_EXT_ENABLE_MASK,
+		.n_voltages = AS3722_LDO_NUM_VOLT,
+	},
+	{
+		.regulator_id = AS3722_REGULATOR_ID_LDO11,
+		.name = "as3722-ldo11",
+		.sname = "vin-ldo11",
+		.vsel_reg = AS3722_LDO11_VOLTAGE_REG,
+		.vsel_mask = AS3722_LDO_VSEL_MASK,
+		.enable_reg = AS3722_LDOCONTROL1_REG,
+		.enable_mask = AS3722_LDO11_CTRL,
+		.sleep_ctrl_reg = AS3722_ENABLE_CTRL5_REG,
+		.sleep_ctrl_mask = AS3722_LDO11_EXT_ENABLE_MASK,
+		.n_voltages = AS3722_LDO_NUM_VOLT,
+	},
+};
+
+
+static const int as3722_ldo_current[] = { 150000, 300000 };
+static const int as3722_sd016_current[] = { 2500000, 3000000, 3500000 };
+
+static int as3722_current_to_index(int min_uA, int max_uA,
+		const int *curr_table, int n_currents)
+{
+	int i;
+
+	for (i = n_currents - 1; i >= 0; i--) {
+		if ((min_uA <= curr_table[i]) && (curr_table[i] <= max_uA))
+			return i;
+	}
+	return -EINVAL;
+}
+
+static int as3722_ldo_get_current_limit(struct regulator_dev *rdev)
+{
+	struct as3722_regulators *as3722_regs = rdev_get_drvdata(rdev);
+	struct as3722 *as3722 = as3722_regs->as3722;
+	int id = rdev_get_id(rdev);
+	u32 val;
+	int ret;
+
+	ret = as3722_read(as3722, as3722_reg_lookup[id].vsel_reg, &val);
+	if (ret < 0) {
+		dev_err(as3722_regs->dev, "Reg 0x%02x read failed: %d\n",
+			as3722_reg_lookup[id].vsel_reg, ret);
+		return ret;
+	}
+	if (val & AS3722_LDO_ILIMIT_MASK)
+		return 300000;
+	return 150000;
+}
+
+static int as3722_ldo_set_current_limit(struct regulator_dev *rdev,
+		int min_uA, int max_uA)
+{
+	struct as3722_regulators *as3722_regs = rdev_get_drvdata(rdev);
+	struct as3722 *as3722 = as3722_regs->as3722;
+	int id = rdev_get_id(rdev);
+	int ret;
+	u32 reg = 0;
+
+	ret = as3722_current_to_index(min_uA, max_uA, as3722_ldo_current,
+				ARRAY_SIZE(as3722_ldo_current));
+	if (ret < 0) {
+		dev_err(as3722_regs->dev,
+			"Current range min:max = %d:%d does not support\n",
+			min_uA, max_uA);
+		return ret;
+	}
+	if (ret)
+		reg = AS3722_LDO_ILIMIT_BIT;
+	return as3722_update_bits(as3722, as3722_reg_lookup[id].vsel_reg,
+			AS3722_LDO_ILIMIT_MASK, reg);
+}
+
+static struct regulator_ops as3722_ldo0_ops = {
+	.is_enabled = regulator_is_enabled_regmap,
+	.enable = regulator_enable_regmap,
+	.disable = regulator_disable_regmap,
+	.list_voltage = regulator_list_voltage_linear,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_current_limit = as3722_ldo_get_current_limit,
+	.set_current_limit = as3722_ldo_set_current_limit,
+};
+
+static struct regulator_ops as3722_ldo0_extcntrl_ops = {
+	.list_voltage = regulator_list_voltage_linear,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_current_limit = as3722_ldo_get_current_limit,
+	.set_current_limit = as3722_ldo_set_current_limit,
+};
+
+static int as3722_ldo3_set_tracking_mode(struct as3722_regulators *as3722_reg,
+		int id, u8 mode)
+{
+	struct as3722 *as3722 = as3722_reg->as3722;
+
+	switch (mode) {
+	case AS3722_LDO3_MODE_PMOS:
+	case AS3722_LDO3_MODE_PMOS_TRACKING:
+	case AS3722_LDO3_MODE_NMOS:
+	case AS3722_LDO3_MODE_SWITCH:
+		return as3722_update_bits(as3722,
+			as3722_reg_lookup[id].vsel_reg,
+			AS3722_LDO3_MODE_MASK, mode);
+
+	default:
+		return -EINVAL;
+	}
+}
+
+static int as3722_ldo3_get_current_limit(struct regulator_dev *rdev)
+{
+	return 150000;
+}
+
+static struct regulator_ops as3722_ldo3_ops = {
+	.is_enabled = regulator_is_enabled_regmap,
+	.enable = regulator_enable_regmap,
+	.disable = regulator_disable_regmap,
+	.list_voltage = regulator_list_voltage_linear,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_current_limit = as3722_ldo3_get_current_limit,
+};
+
+static struct regulator_ops as3722_ldo3_extcntrl_ops = {
+	.list_voltage = regulator_list_voltage_linear,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_current_limit = as3722_ldo3_get_current_limit,
+};
+
+#define regulator_lin_range(_min_sel, _max_sel, _min_uV, _step_uV)	\
+	{								\
+		.min_sel = _min_sel,					\
+		.max_sel = _max_sel,					\
+		.uV_step = _step_uV,					\
+		.min_uV = _min_uV,					\
+		.max_uV = _min_uV + (_max_sel - _min_sel + 1) * _step_uV, \
+	}
+
+static const struct regulator_linear_range as3722_ldo_ranges[] = {
+	regulator_lin_range(0x01, 0x24,  800000, 25000),
+	regulator_lin_range(0x40, 0x7F, 1725000, 25000),
+};
+
+static struct regulator_ops as3722_ldo_ops = {
+	.is_enabled = regulator_is_enabled_regmap,
+	.enable = regulator_enable_regmap,
+	.disable = regulator_disable_regmap,
+	.map_voltage = regulator_map_voltage_linear_range,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.list_voltage = regulator_list_voltage_linear_range,
+	.get_current_limit = as3722_ldo_get_current_limit,
+	.set_current_limit = as3722_ldo_set_current_limit,
+};
+
+static struct regulator_ops as3722_ldo_extcntrl_ops = {
+	.map_voltage = regulator_map_voltage_linear_range,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.list_voltage = regulator_list_voltage_linear_range,
+	.get_current_limit = as3722_ldo_get_current_limit,
+	.set_current_limit = as3722_ldo_set_current_limit,
+};
+
+static unsigned int as3722_sd_get_mode(struct regulator_dev *rdev)
+{
+	struct as3722_regulators *as3722_regs = rdev_get_drvdata(rdev);
+	struct as3722 *as3722 = as3722_regs->as3722;
+	int id = rdev_get_id(rdev);
+	u32 val;
+	int ret;
+
+	if (!as3722_reg_lookup[id].control_reg)
+		return -ENOTSUPP;
+
+	ret = as3722_read(as3722, as3722_reg_lookup[id].control_reg, &val);
+	if (ret < 0) {
+		dev_err(as3722_regs->dev, "Reg 0x%02x read failed: %d\n",
+			as3722_reg_lookup[id].control_reg, ret);
+		return ret;
+	}
+
+	if (val & as3722_reg_lookup[id].mode_mask)
+		return REGULATOR_MODE_FAST;
+	else
+		return REGULATOR_MODE_NORMAL;
+}
+
+static int as3722_sd_set_mode(struct regulator_dev *rdev,
+		unsigned int mode)
+{
+	struct as3722_regulators *as3722_regs = rdev_get_drvdata(rdev);
+	struct as3722 *as3722 = as3722_regs->as3722;
+	u8 id = rdev_get_id(rdev);
+	u8 val = 0;
+	int ret;
+
+	if (!as3722_reg_lookup[id].control_reg)
+		return -ERANGE;
+
+	switch (mode) {
+	case REGULATOR_MODE_FAST:
+		val = as3722_reg_lookup[id].mode_mask;
+	case REGULATOR_MODE_NORMAL: /* fall down */
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	ret = as3722_update_bits(as3722, as3722_reg_lookup[id].control_reg,
+			as3722_reg_lookup[id].mode_mask, val);
+	if (ret < 0) {
+		dev_err(as3722_regs->dev, "Reg 0x%02x update failed: %d\n",
+			as3722_reg_lookup[id].control_reg, ret);
+		return ret;
+	}
+	return ret;
+}
+
+static int as3722_sd016_get_current_limit(struct regulator_dev *rdev)
+{
+	struct as3722_regulators *as3722_regs = rdev_get_drvdata(rdev);
+	struct as3722 *as3722 = as3722_regs->as3722;
+	int id = rdev_get_id(rdev);
+	u32 val, reg;
+	int mask;
+	int ret;
+
+	switch (id) {
+	case AS3722_REGULATOR_ID_SD0:
+		reg = AS3722_OVCURRENT_REG;
+		mask = AS3722_OVCURRENT_SD0_TRIP_MASK;
+		break;
+	case AS3722_REGULATOR_ID_SD1:
+		reg = AS3722_OVCURRENT_REG;
+		mask = AS3722_OVCURRENT_SD1_TRIP_MASK;
+		break;
+	case AS3722_REGULATOR_ID_SD6:
+		reg = AS3722_OVCURRENT_DEB_REG;
+		mask = AS3722_OVCURRENT_SD6_TRIP_MASK;
+		break;
+	default:
+		return -EINVAL;
+	}
+	ret = as3722_read(as3722, reg, &val);
+	if (ret < 0) {
+		dev_err(as3722_regs->dev, "Reg 0x%02x read failed: %d\n",
+			reg, ret);
+		return ret;
+	}
+	val &= mask;
+	val >>= ffs(mask) - 1;
+	if (val == 3)
+		return -EINVAL;
+	return as3722_sd016_current[val];
+}
+
+static int as3722_sd016_set_current_limit(struct regulator_dev *rdev,
+		int min_uA, int max_uA)
+{
+	struct as3722_regulators *as3722_regs = rdev_get_drvdata(rdev);
+	struct as3722 *as3722 = as3722_regs->as3722;
+	int id = rdev_get_id(rdev);
+	int ret;
+	int val;
+	int mask;
+	u32 reg;
+
+	ret = as3722_current_to_index(min_uA, max_uA, as3722_sd016_current,
+				ARRAY_SIZE(as3722_sd016_current));
+	if (ret < 0) {
+		dev_err(as3722_regs->dev,
+			"Current range min:max = %d:%d does not support\n",
+			min_uA, max_uA);
+		return ret;
+	}
+
+	switch (id) {
+	case AS3722_REGULATOR_ID_SD0:
+		reg = AS3722_OVCURRENT_REG;
+		mask = AS3722_OVCURRENT_SD0_TRIP_MASK;
+		break;
+	case AS3722_REGULATOR_ID_SD1:
+		reg = AS3722_OVCURRENT_REG;
+		mask = AS3722_OVCURRENT_SD1_TRIP_MASK;
+		break;
+	case AS3722_REGULATOR_ID_SD6:
+		reg = AS3722_OVCURRENT_DEB_REG;
+		mask = AS3722_OVCURRENT_SD6_TRIP_MASK;
+		break;
+	default:
+		return -EINVAL;
+	}
+	val = ret & mask;
+	val <<= ffs(mask) - 1;
+	return as3722_update_bits(as3722, reg, mask, val);
+}
+
+static const struct regulator_linear_range as3722_sd2345_ranges[] = {
+	regulator_lin_range(0x01, 0x40,  600000, 12500),
+	regulator_lin_range(0x41, 0x70, 1400000, 25000),
+	regulator_lin_range(0x71, 0x7F, 1725000, 50000),
+};
+
+static struct regulator_ops as3722_sd016_ops = {
+	.is_enabled = regulator_is_enabled_regmap,
+	.enable = regulator_enable_regmap,
+	.disable = regulator_disable_regmap,
+	.list_voltage = regulator_list_voltage_linear,
+	.map_voltage = regulator_map_voltage_linear,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_current_limit = as3722_sd016_get_current_limit,
+	.set_current_limit = as3722_sd016_set_current_limit,
+	.get_mode = as3722_sd_get_mode,
+	.set_mode = as3722_sd_set_mode,
+};
+
+static struct regulator_ops as3722_sd016_extcntrl_ops = {
+	.list_voltage = regulator_list_voltage_linear,
+	.map_voltage = regulator_map_voltage_linear,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_current_limit = as3722_sd016_get_current_limit,
+	.set_current_limit = as3722_sd016_set_current_limit,
+	.get_mode = as3722_sd_get_mode,
+	.set_mode = as3722_sd_set_mode,
+};
+
+static struct regulator_ops as3722_sd2345_ops = {
+	.is_enabled = regulator_is_enabled_regmap,
+	.enable = regulator_enable_regmap,
+	.disable = regulator_disable_regmap,
+	.list_voltage = regulator_list_voltage_linear_range,
+	.map_voltage = regulator_map_voltage_linear_range,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.get_mode = as3722_sd_get_mode,
+	.set_mode = as3722_sd_set_mode,
+};
+
+static struct regulator_ops as3722_sd2345_extcntrl_ops = {
+	.list_voltage = regulator_list_voltage_linear_range,
+	.map_voltage = regulator_map_voltage_linear_range,
+	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.get_voltage_sel = regulator_get_voltage_sel_regmap,
+	.get_mode = as3722_sd_get_mode,
+	.set_mode = as3722_sd_set_mode,
+};
+
+static int as3722_extreg_init(struct as3722_regulators *as3722_regs, int id,
+		int ext_pwr_ctrl)
+{
+	int ret;
+	unsigned int val;
+
+	if ((ext_pwr_ctrl < AS3722_EXT_CONTROL_ENABLE1) ||
+		(ext_pwr_ctrl > AS3722_EXT_CONTROL_ENABLE3))
+		return -EINVAL;
+
+	val =  ext_pwr_ctrl << (ffs(as3722_reg_lookup[id].sleep_ctrl_mask) - 1);
+	ret = as3722_update_bits(as3722_regs->as3722,
+			as3722_reg_lookup[id].sleep_ctrl_reg,
+			as3722_reg_lookup[id].sleep_ctrl_mask, val);
+	if (ret < 0)
+		dev_err(as3722_regs->dev, "Reg 0x%02x update failed: %d\n",
+			as3722_reg_lookup[id].sleep_ctrl_reg, ret);
+	return ret;
+}
+
+static struct of_regulator_match as3722_regulator_matches[] = {
+	{ .name = "sd0", },
+	{ .name = "sd1", },
+	{ .name = "sd2", },
+	{ .name = "sd3", },
+	{ .name = "sd4", },
+	{ .name = "sd5", },
+	{ .name = "sd6", },
+	{ .name = "ldo0", },
+	{ .name = "ldo1", },
+	{ .name = "ldo2", },
+	{ .name = "ldo3", },
+	{ .name = "ldo4", },
+	{ .name = "ldo5", },
+	{ .name = "ldo6", },
+	{ .name = "ldo7", },
+	{ .name = "ldo9", },
+	{ .name = "ldo10", },
+	{ .name = "ldo11", },
+};
+
+static int as3722_get_regulator_dt_data(struct platform_device *pdev,
+		struct as3722_regulators *as3722_regs)
+{
+	struct device_node *np;
+	struct as3722_regulator_config_data *reg_config;
+	u32 prop;
+	int id;
+	int ret;
+
+	np = of_get_child_by_name(pdev->dev.parent->of_node, "regulators");
+	if (!np) {
+		dev_err(&pdev->dev, "Device is not having regulators node\n");
+		return -ENODEV;
+	}
+	pdev->dev.of_node = np;
+
+	ret = of_regulator_match(&pdev->dev, np, as3722_regulator_matches,
+			ARRAY_SIZE(as3722_regulator_matches));
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Parsing of regulator node failed: %d\n",
+			ret);
+		return ret;
+	}
+
+	for (id = 0; id < ARRAY_SIZE(as3722_regulator_matches); ++id) {
+		struct device_node *reg_node;
+
+		reg_config = &as3722_regs->reg_config_data[id];
+		reg_config->reg_init = as3722_regulator_matches[id].init_data;
+		reg_node = as3722_regulator_matches[id].of_node;
+
+		if (!reg_config->reg_init || !reg_node)
+			continue;
+
+		ret = of_property_read_u32(reg_node, "ams,ext-control", &prop);
+		if (!ret) {
+			if (prop < 3)
+				reg_config->ext_control = prop;
+			else
+				dev_warn(&pdev->dev,
+					"ext-control have invalid option: %u\n",
+					prop);
+		}
+		reg_config->enable_tracking =
+			of_property_read_bool(reg_node, "ams,enable-tracking");
+	}
+	return 0;
+}
+
+static int as3722_regulator_probe(struct platform_device *pdev)
+{
+	struct as3722 *as3722 = dev_get_drvdata(pdev->dev.parent);
+	struct as3722_regulators *as3722_regs;
+	struct as3722_regulator_config_data *reg_config;
+	struct regulator_dev *rdev;
+	struct regulator_config config = { };
+	struct regulator_ops *ops;
+	int id;
+	int ret;
+
+	as3722_regs = devm_kzalloc(&pdev->dev, sizeof(*as3722_regs),
+				GFP_KERNEL);
+	if (!as3722_regs)
+		return -ENOMEM;
+
+	as3722_regs->dev = &pdev->dev;
+	as3722_regs->as3722 = as3722;
+	platform_set_drvdata(pdev, as3722_regs);
+
+	ret = as3722_get_regulator_dt_data(pdev, as3722_regs);
+	if (ret < 0)
+		return ret;
+
+	config.dev = &pdev->dev;
+	config.driver_data = as3722_regs;
+	config.regmap = as3722->regmap;
+
+	for (id = 0; id < AS3722_REGULATOR_ID_MAX; id++) {
+		reg_config = &as3722_regs->reg_config_data[id];
+
+		as3722_regs->desc[id].name = as3722_reg_lookup[id].name;
+		as3722_regs->desc[id].supply_name = as3722_reg_lookup[id].sname;
+		as3722_regs->desc[id].id = as3722_reg_lookup[id].regulator_id;
+		as3722_regs->desc[id].n_voltages =
+					as3722_reg_lookup[id].n_voltages;
+		as3722_regs->desc[id].type = REGULATOR_VOLTAGE;
+		as3722_regs->desc[id].owner = THIS_MODULE;
+		as3722_regs->desc[id].enable_reg =
+					as3722_reg_lookup[id].enable_reg;
+		as3722_regs->desc[id].enable_mask =
+					as3722_reg_lookup[id].enable_mask;
+		as3722_regs->desc[id].vsel_reg = as3722_reg_lookup[id].vsel_reg;
+		as3722_regs->desc[id].vsel_mask =
+					as3722_reg_lookup[id].vsel_mask;
+		switch (id) {
+		case AS3722_REGULATOR_ID_LDO0:
+			if (reg_config->ext_control)
+				ops = &as3722_ldo0_extcntrl_ops;
+			else
+				ops = &as3722_ldo0_ops;
+			as3722_regs->desc[id].min_uV = 825000;
+			as3722_regs->desc[id].uV_step = 25000;
+			as3722_regs->desc[id].linear_min_sel = 1;
+			as3722_regs->desc[id].enable_time = 500;
+			break;
+		case AS3722_REGULATOR_ID_LDO3:
+			if (reg_config->ext_control)
+				ops = &as3722_ldo3_extcntrl_ops;
+			else
+				ops = &as3722_ldo3_ops;
+			as3722_regs->desc[id].min_uV = 620000;
+			as3722_regs->desc[id].uV_step = 20000;
+			as3722_regs->desc[id].linear_min_sel = 1;
+			as3722_regs->desc[id].enable_time = 500;
+			if (reg_config->enable_tracking) {
+				ret = as3722_ldo3_set_tracking_mode(as3722_regs,
+					id, AS3722_LDO3_MODE_PMOS_TRACKING);
+				if (ret < 0) {
+					dev_err(&pdev->dev,
+						"LDO3 tracking failed: %d\n",
+						ret);
+					return ret;
+				}
+			}
+			break;
+		case AS3722_REGULATOR_ID_SD0:
+		case AS3722_REGULATOR_ID_SD1:
+		case AS3722_REGULATOR_ID_SD6:
+			if (reg_config->ext_control)
+				ops = &as3722_sd016_extcntrl_ops;
+			else
+				ops = &as3722_sd016_ops;
+			as3722_regs->desc[id].min_uV = 610000;
+			as3722_regs->desc[id].uV_step = 10000;
+			as3722_regs->desc[id].linear_min_sel = 1;
+			break;
+		case AS3722_REGULATOR_ID_SD2:
+		case AS3722_REGULATOR_ID_SD3:
+		case AS3722_REGULATOR_ID_SD4:
+		case AS3722_REGULATOR_ID_SD5:
+			if (reg_config->ext_control)
+				ops = &as3722_sd2345_extcntrl_ops;
+			else
+				ops = &as3722_sd2345_ops;
+			as3722_regs->desc[id].linear_ranges =
+						as3722_sd2345_ranges;
+			as3722_regs->desc[id].n_linear_ranges =
+					ARRAY_SIZE(as3722_sd2345_ranges);
+			break;
+		default:
+			if (reg_config->ext_control)
+				ops = &as3722_ldo_extcntrl_ops;
+			else
+				ops = &as3722_ldo_ops;
+			as3722_regs->desc[id].min_uV = 825000;
+			as3722_regs->desc[id].uV_step = 25000;
+			as3722_regs->desc[id].linear_min_sel = 1;
+			as3722_regs->desc[id].enable_time = 500;
+			as3722_regs->desc[id].linear_ranges = as3722_ldo_ranges;
+			as3722_regs->desc[id].n_linear_ranges =
+						ARRAY_SIZE(as3722_ldo_ranges);
+			break;
+		}
+		as3722_regs->desc[id].ops = ops;
+		config.init_data = reg_config->reg_init;
+		config.of_node = as3722_regulator_matches[id].of_node;
+		rdev = devm_regulator_register(&pdev->dev,
+					&as3722_regs->desc[id], &config);
+		if (IS_ERR(rdev)) {
+			ret = PTR_ERR(rdev);
+			dev_err(&pdev->dev, "regulator %d register failed %d\n",
+				id, ret);
+			return ret;
+		}
+
+		as3722_regs->rdevs[id] = rdev;
+		if (reg_config->ext_control) {
+			ret = regulator_enable_regmap(rdev);
+			if (ret < 0) {
+				dev_err(&pdev->dev,
+					"Regulator %d enable failed: %d\n",
+					id, ret);
+				return ret;
+			}
+			ret = as3722_extreg_init(as3722_regs, id,
+					reg_config->ext_control);
+			if (ret < 0) {
+				dev_err(&pdev->dev,
+					"AS3722 ext control failed: %d", ret);
+				return ret;
+			}
+		}
+	}
+	return 0;
+}
+
+static const struct of_device_id of_as3722_regulator_match[] = {
+	{ .compatible = "ams,as3722-regulator", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, of_as3722_regulator_match);
+
+static struct platform_driver as3722_regulator_driver = {
+	.driver = {
+		.name = "as3722-regulator",
+		.owner = THIS_MODULE,
+		.of_match_table = of_as3722_regulator_match,
+	},
+	.probe = as3722_regulator_probe,
+};
+
+module_platform_driver(as3722_regulator_driver);
+
+MODULE_ALIAS("platform:as3722-regulator");
+MODULE_DESCRIPTION("AS3722 regulator driver");
+MODULE_AUTHOR("Florian Lobmaier <florian.lobmaier@ams.com>");
+MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
+MODULE_LICENSE("GPL");
-- 
cgit 


From 757651e3d60e5bff705743a301d64035b919fd03 Mon Sep 17 00:00:00 2001
From: Markus Mayer <mmayer@broadcom.com>
Date: Tue, 10 Sep 2013 11:07:01 -0700
Subject: gpio: bcm281xx: Add GPIO driver

Add the GPIO driver for the Broadcom bcm281xx family of mobile SoCs.
These GPIO controllers may contain up to 8 banks where each bank
includes 32 pins that can be driven high or low and act as an edge
sensitive interrupt.

Signed-off-by: Markus Mayer <markus.mayer@linaro.org>
Reviewed-by: Christian Daudt <csd@broadcom.com>
Reviewed-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Matt Porter <matt.porter@linaro.org>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
[Added depends on OF_GPIO]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 .../devicetree/bindings/gpio/gpio-bcm-kona.txt     |  52 ++
 drivers/gpio/Kconfig                               |   6 +
 drivers/gpio/Makefile                              |   1 +
 drivers/gpio/gpio-bcm-kona.c                       | 632 +++++++++++++++++++++
 4 files changed, 691 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpio/gpio-bcm-kona.txt
 create mode 100644 drivers/gpio/gpio-bcm-kona.c

diff --git a/Documentation/devicetree/bindings/gpio/gpio-bcm-kona.txt b/Documentation/devicetree/bindings/gpio/gpio-bcm-kona.txt
new file mode 100644
index 000000000000..4a63bc96b687
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-bcm-kona.txt
@@ -0,0 +1,52 @@
+Broadcom Kona Family GPIO
+=========================
+
+This GPIO driver is used in the following Broadcom SoCs:
+  BCM11130, BCM11140, BCM11351, BCM28145, BCM28155
+
+The Broadcom GPIO Controller IP can be configured prior to synthesis to
+support up to 8 banks of 32 GPIOs where each bank has its own IRQ. The
+GPIO controller only supports edge, not level, triggering of interrupts.
+
+Required properties
+-------------------
+
+- compatible: "brcm,bcm11351-gpio", "brcm,kona-gpio"
+- reg: Physical base address and length of the controller's registers.
+- interrupts: The interrupt outputs from the controller. There is one GPIO
+  interrupt per GPIO bank. The number of interrupts listed depends on the
+  number of GPIO banks on the SoC. The interrupts must be ordered by bank,
+  starting with bank 0. There is always a 1:1 mapping between banks and
+  IRQs.
+- #gpio-cells: Should be <2>. The first cell is the pin number, the second
+  cell is used to specify optional parameters:
+  - bit 0 specifies polarity (0 for normal, 1 for inverted)
+  See also "gpio-specifier" in .../devicetree/bindings/gpio/gpio.txt.
+- #interrupt-cells: Should be <2>. The first cell is the GPIO number. The
+  second cell is used to specify flags. The following subset of flags is
+  supported:
+  - trigger type (bits[1:0]):
+      1 = low-to-high edge triggered.
+      2 = high-to-low edge triggered.
+      3 = low-to-high or high-to-low edge triggered
+      Valid values are 1, 2, 3
+  See also .../devicetree/bindings/interrupt-controller/interrupts.txt.
+- gpio-controller: Marks the device node as a GPIO controller.
+- interrupt-controller: Marks the device node as an interrupt controller.
+
+Example:
+	gpio: gpio@35003000 {
+		compatible = "brcm,bcm11351-gpio", "brcm,kona-gpio";
+		reg = <0x35003000 0x800>;
+		interrupts =
+		       <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH
+			GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH
+			GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH
+			GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH
+			GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH
+			GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
+		#gpio-cells = <2>;
+		#interrupt-cells = <2>;
+		gpio-controller;
+		interrupt-controller;
+	};
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index a6d67c5d0c20..8e1d4db4be5f 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -759,6 +759,12 @@ config GPIO_MSIC
 	  Enable support for GPIO on intel MSIC controllers found in
 	  intel MID devices
 
+config GPIO_BCM_KONA
+	bool "Broadcom Kona GPIO"
+	depends on OF_GPIO
+	help
+	  Turn on GPIO support for Broadcom "Kona" chips.
+
 comment "USB GPIO expanders:"
 
 config GPIO_VIPERBOARD
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 98e23ebba2cf..aaf1adab40d4 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_GPIO_ADP5520)	+= gpio-adp5520.o
 obj-$(CONFIG_GPIO_ADP5588)	+= gpio-adp5588.o
 obj-$(CONFIG_GPIO_AMD8111)	+= gpio-amd8111.o
 obj-$(CONFIG_GPIO_ARIZONA)	+= gpio-arizona.o
+obj-$(CONFIG_GPIO_BCM_KONA)	+= gpio-bcm-kona.o
 obj-$(CONFIG_GPIO_BT8XX)	+= gpio-bt8xx.o
 obj-$(CONFIG_GPIO_CLPS711X)	+= gpio-clps711x.o
 obj-$(CONFIG_GPIO_CS5535)	+= gpio-cs5535.o
diff --git a/drivers/gpio/gpio-bcm-kona.c b/drivers/gpio/gpio-bcm-kona.c
new file mode 100644
index 000000000000..f7d932ac64e6
--- /dev/null
+++ b/drivers/gpio/gpio-bcm-kona.c
@@ -0,0 +1,632 @@
+/*
+ * Copyright (C) 2012-2013 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/bitops.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+#include <linux/of_device.h>
+#include <linux/of_irq.h>
+#include <linux/module.h>
+#include <linux/irqdomain.h>
+#include <linux/irqchip/chained_irq.h>
+
+#define BCM_GPIO_PASSWD				0x00a5a501
+#define GPIO_PER_BANK				32
+#define GPIO_MAX_BANK_NUM			8
+
+#define GPIO_BANK(gpio)				((gpio) >> 5)
+#define GPIO_BIT(gpio)				((gpio) & (GPIO_PER_BANK - 1))
+
+#define GPIO_OUT_STATUS(bank)			(0x00000000 + ((bank) << 2))
+#define GPIO_IN_STATUS(bank)			(0x00000020 + ((bank) << 2))
+#define GPIO_OUT_SET(bank)			(0x00000040 + ((bank) << 2))
+#define GPIO_OUT_CLEAR(bank)			(0x00000060 + ((bank) << 2))
+#define GPIO_INT_STATUS(bank)			(0x00000080 + ((bank) << 2))
+#define GPIO_INT_MASK(bank)			(0x000000a0 + ((bank) << 2))
+#define GPIO_INT_MSKCLR(bank)			(0x000000c0 + ((bank) << 2))
+#define GPIO_CONTROL(bank)			(0x00000100 + ((bank) << 2))
+#define GPIO_PWD_STATUS(bank)			(0x00000500 + ((bank) << 2))
+
+#define GPIO_GPPWR_OFFSET			0x00000520
+
+#define GPIO_GPCTR0_DBR_SHIFT			5
+#define GPIO_GPCTR0_DBR_MASK			0x000001e0
+
+#define GPIO_GPCTR0_ITR_SHIFT			3
+#define GPIO_GPCTR0_ITR_MASK			0x00000018
+#define GPIO_GPCTR0_ITR_CMD_RISING_EDGE		0x00000001
+#define GPIO_GPCTR0_ITR_CMD_FALLING_EDGE	0x00000002
+#define GPIO_GPCTR0_ITR_CMD_BOTH_EDGE		0x00000003
+
+#define GPIO_GPCTR0_IOTR_MASK			0x00000001
+#define GPIO_GPCTR0_IOTR_CMD_0UTPUT		0x00000000
+#define GPIO_GPCTR0_IOTR_CMD_INPUT		0x00000001
+
+#define GPIO_GPCTR0_DB_ENABLE_MASK		0x00000100
+
+#define LOCK_CODE				0xffffffff
+#define UNLOCK_CODE				0x00000000
+
+struct bcm_kona_gpio {
+	void __iomem *reg_base;
+	int num_bank;
+	spinlock_t lock;
+	struct gpio_chip gpio_chip;
+	struct irq_domain *irq_domain;
+	struct bcm_kona_gpio_bank *banks;
+	struct platform_device *pdev;
+};
+
+struct bcm_kona_gpio_bank {
+	int id;
+	int irq;
+	/* Used in the interrupt handler */
+	struct bcm_kona_gpio *kona_gpio;
+};
+
+static inline struct bcm_kona_gpio *to_kona_gpio(struct gpio_chip *chip)
+{
+	return container_of(chip, struct bcm_kona_gpio, gpio_chip);
+}
+
+static void bcm_kona_gpio_set_lockcode_bank(void __iomem *reg_base,
+					    int bank_id, int lockcode)
+{
+	writel(BCM_GPIO_PASSWD, reg_base + GPIO_GPPWR_OFFSET);
+	writel(lockcode, reg_base + GPIO_PWD_STATUS(bank_id));
+}
+
+static inline void bcm_kona_gpio_lock_bank(void __iomem *reg_base, int bank_id)
+{
+	bcm_kona_gpio_set_lockcode_bank(reg_base, bank_id, LOCK_CODE);
+}
+
+static inline void bcm_kona_gpio_unlock_bank(void __iomem *reg_base,
+					     int bank_id)
+{
+	bcm_kona_gpio_set_lockcode_bank(reg_base, bank_id, UNLOCK_CODE);
+}
+
+static void bcm_kona_gpio_set(struct gpio_chip *chip, unsigned gpio, int value)
+{
+	struct bcm_kona_gpio *kona_gpio;
+	void __iomem *reg_base;
+	int bank_id = GPIO_BANK(gpio);
+	int bit = GPIO_BIT(gpio);
+	u32 val, reg_offset;
+	unsigned long flags;
+
+	kona_gpio = to_kona_gpio(chip);
+	reg_base = kona_gpio->reg_base;
+	spin_lock_irqsave(&kona_gpio->lock, flags);
+	bcm_kona_gpio_unlock_bank(reg_base, bank_id);
+
+	/* determine the GPIO pin direction */
+	val = readl(reg_base + GPIO_CONTROL(gpio));
+	val &= GPIO_GPCTR0_IOTR_MASK;
+
+	/* this function only applies to output pin */
+	if (GPIO_GPCTR0_IOTR_CMD_INPUT == val)
+		goto out;
+
+	reg_offset = value ? GPIO_OUT_SET(bank_id) : GPIO_OUT_CLEAR(bank_id);
+
+	val = readl(reg_base + reg_offset);
+	val |= BIT(bit);
+	writel(val, reg_base + reg_offset);
+
+out:
+	bcm_kona_gpio_lock_bank(reg_base, bank_id);
+	spin_unlock_irqrestore(&kona_gpio->lock, flags);
+}
+
+static int bcm_kona_gpio_get(struct gpio_chip *chip, unsigned gpio)
+{
+	struct bcm_kona_gpio *kona_gpio;
+	void __iomem *reg_base;
+	int bank_id = GPIO_BANK(gpio);
+	int bit = GPIO_BIT(gpio);
+	u32 val, reg_offset;
+	unsigned long flags;
+
+	kona_gpio = to_kona_gpio(chip);
+	reg_base = kona_gpio->reg_base;
+	spin_lock_irqsave(&kona_gpio->lock, flags);
+	bcm_kona_gpio_unlock_bank(reg_base, bank_id);
+
+	/* determine the GPIO pin direction */
+	val = readl(reg_base + GPIO_CONTROL(gpio));
+	val &= GPIO_GPCTR0_IOTR_MASK;
+
+	/* read the GPIO bank status */
+	reg_offset = (GPIO_GPCTR0_IOTR_CMD_INPUT == val) ?
+	    GPIO_IN_STATUS(bank_id) : GPIO_OUT_STATUS(bank_id);
+	val = readl(reg_base + reg_offset);
+
+	bcm_kona_gpio_lock_bank(reg_base, bank_id);
+	spin_unlock_irqrestore(&kona_gpio->lock, flags);
+
+	/* return the specified bit status */
+	return !!(val & bit);
+}
+
+static int bcm_kona_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
+{
+	struct bcm_kona_gpio *kona_gpio;
+	void __iomem *reg_base;
+	u32 val;
+	unsigned long flags;
+	int bank_id = GPIO_BANK(gpio);
+
+	kona_gpio = to_kona_gpio(chip);
+	reg_base = kona_gpio->reg_base;
+	spin_lock_irqsave(&kona_gpio->lock, flags);
+	bcm_kona_gpio_unlock_bank(reg_base, bank_id);
+
+	val = readl(reg_base + GPIO_CONTROL(gpio));
+	val &= ~GPIO_GPCTR0_IOTR_MASK;
+	val |= GPIO_GPCTR0_IOTR_CMD_INPUT;
+	writel(val, reg_base + GPIO_CONTROL(gpio));
+
+	bcm_kona_gpio_lock_bank(reg_base, bank_id);
+	spin_unlock_irqrestore(&kona_gpio->lock, flags);
+
+	return 0;
+}
+
+static int bcm_kona_gpio_direction_output(struct gpio_chip *chip,
+					  unsigned gpio, int value)
+{
+	struct bcm_kona_gpio *kona_gpio;
+	void __iomem *reg_base;
+	int bank_id = GPIO_BANK(gpio);
+	int bit = GPIO_BIT(gpio);
+	u32 val, reg_offset;
+	unsigned long flags;
+
+	kona_gpio = to_kona_gpio(chip);
+	reg_base = kona_gpio->reg_base;
+	spin_lock_irqsave(&kona_gpio->lock, flags);
+	bcm_kona_gpio_unlock_bank(reg_base, bank_id);
+
+	val = readl(reg_base + GPIO_CONTROL(gpio));
+	val &= ~GPIO_GPCTR0_IOTR_MASK;
+	val |= GPIO_GPCTR0_IOTR_CMD_0UTPUT;
+	writel(val, reg_base + GPIO_CONTROL(gpio));
+	reg_offset = value ? GPIO_OUT_SET(bank_id) : GPIO_OUT_CLEAR(bank_id);
+
+	val = readl(reg_base + reg_offset);
+	val |= BIT(bit);
+	writel(val, reg_base + reg_offset);
+
+	bcm_kona_gpio_lock_bank(reg_base, bank_id);
+	spin_unlock_irqrestore(&kona_gpio->lock, flags);
+
+	return 0;
+}
+
+static int bcm_kona_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
+{
+	struct bcm_kona_gpio *kona_gpio;
+
+	kona_gpio = to_kona_gpio(chip);
+	if (gpio >= kona_gpio->gpio_chip.ngpio)
+		return -ENXIO;
+	return irq_create_mapping(kona_gpio->irq_domain, gpio);
+}
+
+static int bcm_kona_gpio_set_debounce(struct gpio_chip *chip, unsigned gpio,
+				      unsigned debounce)
+{
+	struct bcm_kona_gpio *kona_gpio;
+	void __iomem *reg_base;
+	u32 val, res;
+	unsigned long flags;
+	int bank_id = GPIO_BANK(gpio);
+
+	kona_gpio = to_kona_gpio(chip);
+	reg_base = kona_gpio->reg_base;
+	/* debounce must be 1-128ms (or 0) */
+	if ((debounce > 0 && debounce < 1000) || debounce > 128000) {
+		dev_err(chip->dev, "Debounce value %u not in range\n",
+			debounce);
+		return -EINVAL;
+	}
+
+	/* calculate debounce bit value */
+	if (debounce != 0) {
+		/* Convert to ms */
+		debounce /= 1000;
+		/* find the MSB */
+		res = fls(debounce) - 1;
+		/* Check if MSB-1 is set (round up or down) */
+		if (res > 0 && (debounce & BIT(res - 1)))
+			res++;
+	}
+
+	/* spin lock for read-modify-write of the GPIO register */
+	spin_lock_irqsave(&kona_gpio->lock, flags);
+	bcm_kona_gpio_unlock_bank(reg_base, bank_id);
+
+	val = readl(reg_base + GPIO_CONTROL(gpio));
+	val &= ~GPIO_GPCTR0_DBR_MASK;
+
+	if (debounce == 0) {
+		/* disable debounce */
+		val &= ~GPIO_GPCTR0_DB_ENABLE_MASK;
+	} else {
+		val |= GPIO_GPCTR0_DB_ENABLE_MASK |
+		    (res << GPIO_GPCTR0_DBR_SHIFT);
+	}
+
+	writel(val, reg_base + GPIO_CONTROL(gpio));
+
+	bcm_kona_gpio_lock_bank(reg_base, bank_id);
+	spin_unlock_irqrestore(&kona_gpio->lock, flags);
+
+	return 0;
+}
+
+static struct gpio_chip template_chip = {
+	.label = "bcm-kona-gpio",
+	.direction_input = bcm_kona_gpio_direction_input,
+	.get = bcm_kona_gpio_get,
+	.direction_output = bcm_kona_gpio_direction_output,
+	.set = bcm_kona_gpio_set,
+	.set_debounce = bcm_kona_gpio_set_debounce,
+	.to_irq = bcm_kona_gpio_to_irq,
+	.base = 0,
+};
+
+static void bcm_kona_gpio_irq_ack(struct irq_data *d)
+{
+	struct bcm_kona_gpio *kona_gpio;
+	void __iomem *reg_base;
+	int gpio = d->hwirq;
+	int bank_id = GPIO_BANK(gpio);
+	int bit = GPIO_BIT(gpio);
+	u32 val;
+	unsigned long flags;
+
+	kona_gpio = irq_data_get_irq_chip_data(d);
+	reg_base = kona_gpio->reg_base;
+	spin_lock_irqsave(&kona_gpio->lock, flags);
+	bcm_kona_gpio_unlock_bank(reg_base, bank_id);
+
+	val = readl(reg_base + GPIO_INT_STATUS(bank_id));
+	val |= BIT(bit);
+	writel(val, reg_base + GPIO_INT_STATUS(bank_id));
+
+	bcm_kona_gpio_lock_bank(reg_base, bank_id);
+	spin_unlock_irqrestore(&kona_gpio->lock, flags);
+}
+
+static void bcm_kona_gpio_irq_mask(struct irq_data *d)
+{
+	struct bcm_kona_gpio *kona_gpio;
+	void __iomem *reg_base;
+	int gpio = d->hwirq;
+	int bank_id = GPIO_BANK(gpio);
+	int bit = GPIO_BIT(gpio);
+	u32 val;
+	unsigned long flags;
+
+	kona_gpio = irq_data_get_irq_chip_data(d);
+	reg_base = kona_gpio->reg_base;
+	spin_lock_irqsave(&kona_gpio->lock, flags);
+	bcm_kona_gpio_unlock_bank(reg_base, bank_id);
+
+	val = readl(reg_base + GPIO_INT_MASK(bank_id));
+	val |= BIT(bit);
+	writel(val, reg_base + GPIO_INT_MASK(bank_id));
+
+	bcm_kona_gpio_lock_bank(reg_base, bank_id);
+	spin_unlock_irqrestore(&kona_gpio->lock, flags);
+}
+
+static void bcm_kona_gpio_irq_unmask(struct irq_data *d)
+{
+	struct bcm_kona_gpio *kona_gpio;
+	void __iomem *reg_base;
+	int gpio = d->hwirq;
+	int bank_id = GPIO_BANK(gpio);
+	int bit = GPIO_BIT(gpio);
+	u32 val;
+	unsigned long flags;
+
+	kona_gpio = irq_data_get_irq_chip_data(d);
+	reg_base = kona_gpio->reg_base;
+	spin_lock_irqsave(&kona_gpio->lock, flags);
+	bcm_kona_gpio_unlock_bank(reg_base, bank_id);
+
+	val = readl(reg_base + GPIO_INT_MSKCLR(bank_id));
+	val |= BIT(bit);
+	writel(val, reg_base + GPIO_INT_MSKCLR(bank_id));
+
+	bcm_kona_gpio_lock_bank(reg_base, bank_id);
+	spin_unlock_irqrestore(&kona_gpio->lock, flags);
+}
+
+static int bcm_kona_gpio_irq_set_type(struct irq_data *d, unsigned int type)
+{
+	struct bcm_kona_gpio *kona_gpio;
+	void __iomem *reg_base;
+	int gpio = d->hwirq;
+	u32 lvl_type;
+	u32 val;
+	unsigned long flags;
+	int bank_id = GPIO_BANK(gpio);
+
+	kona_gpio = irq_data_get_irq_chip_data(d);
+	reg_base = kona_gpio->reg_base;
+	switch (type & IRQ_TYPE_SENSE_MASK) {
+	case IRQ_TYPE_EDGE_RISING:
+		lvl_type = GPIO_GPCTR0_ITR_CMD_RISING_EDGE;
+		break;
+
+	case IRQ_TYPE_EDGE_FALLING:
+		lvl_type = GPIO_GPCTR0_ITR_CMD_FALLING_EDGE;
+		break;
+
+	case IRQ_TYPE_EDGE_BOTH:
+		lvl_type = GPIO_GPCTR0_ITR_CMD_BOTH_EDGE;
+		break;
+
+	case IRQ_TYPE_LEVEL_HIGH:
+	case IRQ_TYPE_LEVEL_LOW:
+		/* BCM GPIO doesn't support level triggering */
+	default:
+		dev_err(kona_gpio->gpio_chip.dev,
+			"Invalid BCM GPIO irq type 0x%x\n", type);
+		return -EINVAL;
+	}
+
+	spin_lock_irqsave(&kona_gpio->lock, flags);
+	bcm_kona_gpio_unlock_bank(reg_base, bank_id);
+
+	val = readl(reg_base + GPIO_CONTROL(gpio));
+	val &= ~GPIO_GPCTR0_ITR_MASK;
+	val |= lvl_type << GPIO_GPCTR0_ITR_SHIFT;
+	writel(val, reg_base + GPIO_CONTROL(gpio));
+
+	bcm_kona_gpio_lock_bank(reg_base, bank_id);
+	spin_unlock_irqrestore(&kona_gpio->lock, flags);
+
+	return 0;
+}
+
+static void bcm_kona_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+	void __iomem *reg_base;
+	int bit, bank_id;
+	unsigned long sta;
+	struct bcm_kona_gpio_bank *bank = irq_get_handler_data(irq);
+	struct irq_chip *chip = irq_desc_get_chip(desc);
+
+	chained_irq_enter(chip, desc);
+
+	/*
+	 * For bank interrupts, we can't use chip_data to store the kona_gpio
+	 * pointer, since GIC needs it for its own purposes. Therefore, we get
+	 * our pointer from the bank structure.
+	 */
+	reg_base = bank->kona_gpio->reg_base;
+	bank_id = bank->id;
+	bcm_kona_gpio_unlock_bank(reg_base, bank_id);
+
+	while ((sta = readl(reg_base + GPIO_INT_STATUS(bank_id)) &
+		    (~(readl(reg_base + GPIO_INT_MASK(bank_id)))))) {
+		for_each_set_bit(bit, &sta, 32) {
+			int gpio = GPIO_PER_BANK * bank_id + bit;
+			int virq = irq_find_mapping(bank->kona_gpio->irq_domain,
+						    gpio);
+			/*
+			 * Clear interrupt before handler is called so we don't
+			 * miss any interrupt occurred during executing them.
+			 */
+			writel(readl(reg_base + GPIO_INT_STATUS(bank_id)) |
+			       BIT(bit), reg_base + GPIO_INT_STATUS(bank_id));
+			/* Invoke interrupt handler */
+			generic_handle_irq(virq);
+		}
+	}
+
+	bcm_kona_gpio_lock_bank(reg_base, bank_id);
+
+	chained_irq_exit(chip, desc);
+}
+
+static struct irq_chip bcm_gpio_irq_chip = {
+	.name = "bcm-kona-gpio",
+	.irq_ack = bcm_kona_gpio_irq_ack,
+	.irq_mask = bcm_kona_gpio_irq_mask,
+	.irq_unmask = bcm_kona_gpio_irq_unmask,
+	.irq_set_type = bcm_kona_gpio_irq_set_type,
+};
+
+static struct __initconst of_device_id bcm_kona_gpio_of_match[] = {
+	{ .compatible = "brcm,kona-gpio" },
+	{}
+};
+
+MODULE_DEVICE_TABLE(of, bcm_kona_gpio_of_match);
+
+/*
+ * This lock class tells lockdep that GPIO irqs are in a different
+ * category than their parents, so it won't report false recursion.
+ */
+static struct lock_class_key gpio_lock_class;
+
+static int bcm_kona_gpio_irq_map(struct irq_domain *d, unsigned int virq,
+				 irq_hw_number_t hwirq)
+{
+	int ret;
+
+	ret = irq_set_chip_data(virq, d->host_data);
+	if (ret < 0)
+		return ret;
+	irq_set_lockdep_class(virq, &gpio_lock_class);
+	irq_set_chip_and_handler(virq, &bcm_gpio_irq_chip, handle_simple_irq);
+	irq_set_nested_thread(virq, 1);
+	set_irq_flags(virq, IRQF_VALID);
+
+	return 0;
+}
+
+static void bcm_kona_gpio_irq_unmap(struct irq_domain *d, unsigned int virq)
+{
+	irq_set_chip_and_handler(virq, NULL, NULL);
+	irq_set_chip_data(virq, NULL);
+}
+
+static struct irq_domain_ops bcm_kona_irq_ops = {
+	.map = bcm_kona_gpio_irq_map,
+	.unmap = bcm_kona_gpio_irq_unmap,
+	.xlate = irq_domain_xlate_twocell,
+};
+
+static void bcm_kona_gpio_reset(struct bcm_kona_gpio *kona_gpio)
+{
+	void __iomem *reg_base;
+	int i;
+
+	reg_base = kona_gpio->reg_base;
+	/* disable interrupts and clear status */
+	for (i = 0; i < kona_gpio->num_bank; i++) {
+		bcm_kona_gpio_unlock_bank(reg_base, i);
+		writel(0xffffffff, reg_base + GPIO_INT_MASK(i));
+		writel(0xffffffff, reg_base + GPIO_INT_STATUS(i));
+		bcm_kona_gpio_lock_bank(reg_base, i);
+	}
+}
+
+static int bcm_kona_gpio_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	const struct of_device_id *match;
+	struct resource *res;
+	struct bcm_kona_gpio_bank *bank;
+	struct bcm_kona_gpio *kona_gpio;
+	struct gpio_chip *chip;
+	int ret;
+	int i;
+
+	match = of_match_device(bcm_kona_gpio_of_match, dev);
+	if (!match) {
+		dev_err(dev, "Failed to find gpio controller\n");
+		return -ENODEV;
+	}
+
+	kona_gpio = devm_kzalloc(dev, sizeof(*kona_gpio), GFP_KERNEL);
+	if (!kona_gpio)
+		return -ENOMEM;
+
+	kona_gpio->gpio_chip = template_chip;
+	chip = &kona_gpio->gpio_chip;
+	kona_gpio->num_bank = of_irq_count(dev->of_node);
+	if (kona_gpio->num_bank == 0) {
+		dev_err(dev, "Couldn't determine # GPIO banks\n");
+		return -ENOENT;
+	}
+	if (kona_gpio->num_bank > GPIO_MAX_BANK_NUM) {
+		dev_err(dev, "Too many GPIO banks configured (max=%d)\n",
+			GPIO_MAX_BANK_NUM);
+		return -ENXIO;
+	}
+	kona_gpio->banks = devm_kzalloc(dev,
+					kona_gpio->num_bank *
+					sizeof(*kona_gpio->banks), GFP_KERNEL);
+	if (!kona_gpio->banks)
+		return -ENOMEM;
+
+	kona_gpio->pdev = pdev;
+	platform_set_drvdata(pdev, kona_gpio);
+	chip->of_node = dev->of_node;
+	chip->ngpio = kona_gpio->num_bank * GPIO_PER_BANK;
+
+	kona_gpio->irq_domain = irq_domain_add_linear(dev->of_node,
+						      chip->ngpio,
+						      &bcm_kona_irq_ops,
+						      kona_gpio);
+	if (!kona_gpio->irq_domain) {
+		dev_err(dev, "Couldn't allocate IRQ domain\n");
+		return -ENXIO;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	kona_gpio->reg_base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(kona_gpio->reg_base)) {
+		ret = -ENXIO;
+		goto err_irq_domain;
+	}
+
+	for (i = 0; i < kona_gpio->num_bank; i++) {
+		bank = &kona_gpio->banks[i];
+		bank->id = i;
+		bank->irq = platform_get_irq(pdev, i);
+		bank->kona_gpio = kona_gpio;
+		if (bank->irq < 0) {
+			dev_err(dev, "Couldn't get IRQ for bank %d", i);
+			ret = -ENOENT;
+			goto err_irq_domain;
+		}
+	}
+
+	dev_info(&pdev->dev, "Setting up Kona GPIO at 0x%p (phys %#x)\n",
+		 kona_gpio->reg_base, res->start);
+
+	bcm_kona_gpio_reset(kona_gpio);
+
+	ret = gpiochip_add(chip);
+	if (ret < 0) {
+		dev_err(dev, "Couldn't add GPIO chip -- %d\n", ret);
+		goto err_irq_domain;
+	}
+	for (i = 0; i < chip->ngpio; i++) {
+		int irq = bcm_kona_gpio_to_irq(chip, i);
+		irq_set_lockdep_class(irq, &gpio_lock_class);
+		irq_set_chip_and_handler(irq, &bcm_gpio_irq_chip,
+					 handle_simple_irq);
+		set_irq_flags(irq, IRQF_VALID);
+	}
+	for (i = 0; i < kona_gpio->num_bank; i++) {
+		bank = &kona_gpio->banks[i];
+		irq_set_chained_handler(bank->irq, bcm_kona_gpio_irq_handler);
+		irq_set_handler_data(bank->irq, bank);
+	}
+
+	spin_lock_init(&kona_gpio->lock);
+
+	return 0;
+
+err_irq_domain:
+	irq_domain_remove(kona_gpio->irq_domain);
+
+	return ret;
+}
+
+static struct platform_driver bcm_kona_gpio_driver = {
+	.driver = {
+			.name = "bcm-kona-gpio",
+			.owner = THIS_MODULE,
+			.of_match_table = bcm_kona_gpio_of_match,
+	},
+	.probe = bcm_kona_gpio_probe,
+};
+
+module_platform_driver(bcm_kona_gpio_driver);
+
+MODULE_AUTHOR("Broadcom");
+MODULE_DESCRIPTION("Broadcom Kona GPIO Driver");
+MODULE_LICENSE("GPL v2");
-- 
cgit 


From b51ca34a262f5a3556eb6f1d05fd88503927d3ae Mon Sep 17 00:00:00 2001
From: Fengguang Wu <fengguang.wu@intel.com>
Date: Wed, 3 Jul 2013 14:07:40 +0800
Subject: sfc: efx_ethtool_get_ts_info() can be static

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
 drivers/net/ethernet/sfc/ethtool.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/sfc/ethtool.c b/drivers/net/ethernet/sfc/ethtool.c
index 5b471cf5c323..c8dc407513b0 100644
--- a/drivers/net/ethernet/sfc/ethtool.c
+++ b/drivers/net/ethernet/sfc/ethtool.c
@@ -1035,8 +1035,8 @@ static int efx_ethtool_set_rxfh_indir(struct net_device *net_dev,
 	return 0;
 }
 
-int efx_ethtool_get_ts_info(struct net_device *net_dev,
-			    struct ethtool_ts_info *ts_info)
+static int efx_ethtool_get_ts_info(struct net_device *net_dev,
+				   struct ethtool_ts_info *ts_info)
 {
 	struct efx_nic *efx = netdev_priv(net_dev);
 
-- 
cgit 


From 9fd8095dc1140c45bfc4b7132fb00815a354fb63 Mon Sep 17 00:00:00 2001
From: Fengguang Wu <fengguang.wu@intel.com>
Date: Sat, 31 Aug 2013 06:54:05 +0800
Subject: sfc: efx_ef10_filter_update_rx_scatter() can be static

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
 drivers/net/ethernet/sfc/ef10.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index 9f18ae984f9e..0a3a3b92a131 100644
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -2137,7 +2137,7 @@ out_unlock:
 	return rc;
 }
 
-void efx_ef10_filter_update_rx_scatter(struct efx_nic *efx)
+static void efx_ef10_filter_update_rx_scatter(struct efx_nic *efx)
 {
 	/* no need to do anything here on EF10 */
 }
-- 
cgit 


From 137b79220c5a066fe98d4cfb0bde578637534296 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Wed, 19 Sep 2012 02:16:05 +0100
Subject: sfc: Add EF10 registers to register dump

There are very few readable registers, but we may as well report them.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
 drivers/net/ethernet/sfc/nic.c | 73 ++++++++++++++++++++++++------------------
 1 file changed, 42 insertions(+), 31 deletions(-)

diff --git a/drivers/net/ethernet/sfc/nic.c b/drivers/net/ethernet/sfc/nic.c
index e7dbd2dd202e..c75009b8c0d9 100644
--- a/drivers/net/ethernet/sfc/nic.c
+++ b/drivers/net/ethernet/sfc/nic.c
@@ -19,6 +19,7 @@
 #include "bitfield.h"
 #include "efx.h"
 #include "nic.h"
+#include "ef10_regs.h"
 #include "farch_regs.h"
 #include "io.h"
 #include "workarounds.h"
@@ -166,26 +167,30 @@ void efx_nic_fini_interrupt(struct efx_nic *efx)
 
 /* Register dump */
 
-#define REGISTER_REVISION_A	1
-#define REGISTER_REVISION_B	2
-#define REGISTER_REVISION_C	3
-#define REGISTER_REVISION_Z	3	/* latest revision */
+#define REGISTER_REVISION_FA	1
+#define REGISTER_REVISION_FB	2
+#define REGISTER_REVISION_FC	3
+#define REGISTER_REVISION_FZ	3	/* last Falcon arch revision */
+#define REGISTER_REVISION_ED	4
+#define REGISTER_REVISION_EZ	4	/* latest EF10 revision */
 
 struct efx_nic_reg {
 	u32 offset:24;
-	u32 min_revision:2, max_revision:2;
+	u32 min_revision:3, max_revision:3;
 };
 
-#define REGISTER(name, min_rev, max_rev) {				\
-	FR_ ## min_rev ## max_rev ## _ ## name,				\
-	REGISTER_REVISION_ ## min_rev, REGISTER_REVISION_ ## max_rev	\
+#define REGISTER(name, arch, min_rev, max_rev) {			\
+	arch ## R_ ## min_rev ## max_rev ## _ ## name,			\
+	REGISTER_REVISION_ ## arch ## min_rev,				\
+	REGISTER_REVISION_ ## arch ## max_rev				\
 }
-#define REGISTER_AA(name) REGISTER(name, A, A)
-#define REGISTER_AB(name) REGISTER(name, A, B)
-#define REGISTER_AZ(name) REGISTER(name, A, Z)
-#define REGISTER_BB(name) REGISTER(name, B, B)
-#define REGISTER_BZ(name) REGISTER(name, B, Z)
-#define REGISTER_CZ(name) REGISTER(name, C, Z)
+#define REGISTER_AA(name) REGISTER(name, F, A, A)
+#define REGISTER_AB(name) REGISTER(name, F, A, B)
+#define REGISTER_AZ(name) REGISTER(name, F, A, Z)
+#define REGISTER_BB(name) REGISTER(name, F, B, B)
+#define REGISTER_BZ(name) REGISTER(name, F, B, Z)
+#define REGISTER_CZ(name) REGISTER(name, F, C, Z)
+#define REGISTER_DZ(name) REGISTER(name, E, D, Z)
 
 static const struct efx_nic_reg efx_nic_regs[] = {
 	REGISTER_AZ(ADR_REGION),
@@ -292,37 +297,42 @@ static const struct efx_nic_reg efx_nic_regs[] = {
 	REGISTER_AB(XX_TXDRV_CTL),
 	/* XX_PRBS_CTL, XX_PRBS_CHK and XX_PRBS_ERR are not used */
 	/* XX_CORE_STAT is partly RC */
+	REGISTER_DZ(BIU_HW_REV_ID),
+	REGISTER_DZ(MC_DB_LWRD),
+	REGISTER_DZ(MC_DB_HWRD),
 };
 
 struct efx_nic_reg_table {
 	u32 offset:24;
-	u32 min_revision:2, max_revision:2;
+	u32 min_revision:3, max_revision:3;
 	u32 step:6, rows:21;
 };
 
-#define REGISTER_TABLE_DIMENSIONS(_, offset, min_rev, max_rev, step, rows) { \
+#define REGISTER_TABLE_DIMENSIONS(_, offset, arch, min_rev, max_rev, step, rows) { \
 	offset,								\
-	REGISTER_REVISION_ ## min_rev, REGISTER_REVISION_ ## max_rev,	\
+	REGISTER_REVISION_ ## arch ## min_rev,				\
+	REGISTER_REVISION_ ## arch ## max_rev,				\
 	step, rows							\
 }
-#define REGISTER_TABLE(name, min_rev, max_rev)				\
+#define REGISTER_TABLE(name, arch, min_rev, max_rev)			\
 	REGISTER_TABLE_DIMENSIONS(					\
-		name, FR_ ## min_rev ## max_rev ## _ ## name,		\
-		min_rev, max_rev,					\
-		FR_ ## min_rev ## max_rev ## _ ## name ## _STEP,	\
-		FR_ ## min_rev ## max_rev ## _ ## name ## _ROWS)
-#define REGISTER_TABLE_AA(name) REGISTER_TABLE(name, A, A)
-#define REGISTER_TABLE_AZ(name) REGISTER_TABLE(name, A, Z)
-#define REGISTER_TABLE_BB(name) REGISTER_TABLE(name, B, B)
-#define REGISTER_TABLE_BZ(name) REGISTER_TABLE(name, B, Z)
+		name, arch ## R_ ## min_rev ## max_rev ## _ ## name,	\
+		arch, min_rev, max_rev,					\
+		arch ## R_ ## min_rev ## max_rev ## _ ## name ## _STEP,	\
+		arch ## R_ ## min_rev ## max_rev ## _ ## name ## _ROWS)
+#define REGISTER_TABLE_AA(name) REGISTER_TABLE(name, F, A, A)
+#define REGISTER_TABLE_AZ(name) REGISTER_TABLE(name, F, A, Z)
+#define REGISTER_TABLE_BB(name) REGISTER_TABLE(name, F, B, B)
+#define REGISTER_TABLE_BZ(name) REGISTER_TABLE(name, F, B, Z)
 #define REGISTER_TABLE_BB_CZ(name)					\
-	REGISTER_TABLE_DIMENSIONS(name, FR_BZ_ ## name, B, B,		\
+	REGISTER_TABLE_DIMENSIONS(name, FR_BZ_ ## name, F, B, B,	\
 				  FR_BZ_ ## name ## _STEP,		\
 				  FR_BB_ ## name ## _ROWS),		\
-	REGISTER_TABLE_DIMENSIONS(name, FR_BZ_ ## name, C, Z,		\
+	REGISTER_TABLE_DIMENSIONS(name, FR_BZ_ ## name, F, C, Z,	\
 				  FR_BZ_ ## name ## _STEP,		\
 				  FR_CZ_ ## name ## _ROWS)
-#define REGISTER_TABLE_CZ(name) REGISTER_TABLE(name, C, Z)
+#define REGISTER_TABLE_CZ(name) REGISTER_TABLE(name, F, C, Z)
+#define REGISTER_TABLE_DZ(name) REGISTER_TABLE(name, E, D, Z)
 
 static const struct efx_nic_reg_table efx_nic_reg_tables[] = {
 	/* DRIVER is not used */
@@ -340,9 +350,9 @@ static const struct efx_nic_reg_table efx_nic_reg_tables[] = {
 	 * 1K entries allows for some expansion of queue count and
 	 * size before we need to change the version. */
 	REGISTER_TABLE_DIMENSIONS(BUF_FULL_TBL_KER, FR_AA_BUF_FULL_TBL_KER,
-				  A, A, 8, 1024),
+				  F, A, A, 8, 1024),
 	REGISTER_TABLE_DIMENSIONS(BUF_FULL_TBL, FR_BZ_BUF_FULL_TBL,
-				  B, Z, 8, 1024),
+				  F, B, Z, 8, 1024),
 	REGISTER_TABLE_CZ(RX_MAC_FILTER_TBL0),
 	REGISTER_TABLE_BB_CZ(TIMER_TBL),
 	REGISTER_TABLE_BB_CZ(TX_PACE_TBL),
@@ -353,6 +363,7 @@ static const struct efx_nic_reg_table efx_nic_reg_tables[] = {
 	/* MSIX_PBA_TABLE is not mapped */
 	/* SRM_DBG is not mapped (and is redundant with BUF_FLL_TBL) */
 	REGISTER_TABLE_BZ(RX_FILTER_TBL0),
+	REGISTER_TABLE_DZ(BIU_MC_SFT_STATUS),
 };
 
 size_t efx_nic_get_regs_len(struct efx_nic *efx)
-- 
cgit 


From c78c39e67cf65d147fae72c3c994b1ddc1a3dd04 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Fri, 8 Mar 2013 20:03:17 +0000
Subject: sfc: Fold tso_get_head_fragment() into tso_start()

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
 drivers/net/ethernet/sfc/tx.c | 62 +++++++++++++++++++++----------------------
 1 file changed, 31 insertions(+), 31 deletions(-)

diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c
index 2ac91c5b5eea..902535696928 100644
--- a/drivers/net/ethernet/sfc/tx.c
+++ b/drivers/net/ethernet/sfc/tx.c
@@ -822,11 +822,17 @@ static void efx_enqueue_unwind(struct efx_tx_queue *tx_queue)
 
 
 /* Parse the SKB header and initialise state. */
-static void tso_start(struct tso_state *st, const struct sk_buff *skb)
+static int tso_start(struct tso_state *st, struct efx_nic *efx,
+		     const struct sk_buff *skb)
 {
+	unsigned int header_len, in_len;
+
 	st->ip_off = skb_network_header(skb) - skb->data;
 	st->tcp_off = skb_transport_header(skb) - skb->data;
-	st->header_len = st->tcp_off + (tcp_hdr(skb)->doff << 2u);
+	header_len = st->tcp_off + (tcp_hdr(skb)->doff << 2u);
+	in_len = skb_headlen(skb) - header_len;
+	st->header_len = header_len;
+	st->in_len = in_len;
 	if (st->protocol == htons(ETH_P_IP)) {
 		st->ip_base_len = st->header_len - st->ip_off;
 		st->ipv4_id = ntohs(ip_hdr(skb)->id);
@@ -840,9 +846,24 @@ static void tso_start(struct tso_state *st, const struct sk_buff *skb)
 	EFX_BUG_ON_PARANOID(tcp_hdr(skb)->syn);
 	EFX_BUG_ON_PARANOID(tcp_hdr(skb)->rst);
 
-	st->out_len = skb->len - st->header_len;
-	st->unmap_len = 0;
-	st->dma_flags = 0;
+	st->out_len = skb->len - header_len;
+
+	if (likely(in_len == 0)) {
+		st->unmap_len = 0;
+		st->dma_flags = 0;
+		return 0;
+	}
+
+	st->unmap_addr = dma_map_single(&efx->pci_dev->dev,
+					skb->data + header_len, in_len,
+					DMA_TO_DEVICE);
+	if (unlikely(dma_mapping_error(&efx->pci_dev->dev, st->unmap_addr)))
+		return -ENOMEM;
+
+	st->dma_flags = EFX_TX_BUF_MAP_SINGLE;
+	st->unmap_len = in_len;
+	st->dma_addr = st->unmap_addr;
+	return 0;
 }
 
 static int tso_get_fragment(struct tso_state *st, struct efx_nic *efx,
@@ -860,24 +881,6 @@ static int tso_get_fragment(struct tso_state *st, struct efx_nic *efx,
 	return -ENOMEM;
 }
 
-static int tso_get_head_fragment(struct tso_state *st, struct efx_nic *efx,
-				 const struct sk_buff *skb)
-{
-	int hl = st->header_len;
-	int len = skb_headlen(skb) - hl;
-
-	st->unmap_addr = dma_map_single(&efx->pci_dev->dev, skb->data + hl,
-					len, DMA_TO_DEVICE);
-	if (likely(!dma_mapping_error(&efx->pci_dev->dev, st->unmap_addr))) {
-		st->dma_flags = EFX_TX_BUF_MAP_SINGLE;
-		st->unmap_len = len;
-		st->in_len = len;
-		st->dma_addr = st->unmap_addr;
-		return 0;
-	}
-	return -ENOMEM;
-}
-
 
 /**
  * tso_fill_packet_with_fragment - form descriptors for the current fragment
@@ -1023,12 +1026,11 @@ static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
 
 	EFX_BUG_ON_PARANOID(tx_queue->write_count != tx_queue->insert_count);
 
-	tso_start(&state, skb);
+	rc = tso_start(&state, efx, skb);
+	if (rc)
+		goto mem_err;
 
-	/* Assume that skb header area contains exactly the headers, and
-	 * all payload is in the frag list.
-	 */
-	if (skb_headlen(skb) == state.header_len) {
+	if (likely(state.in_len == 0)) {
 		/* Grab the first payload fragment. */
 		EFX_BUG_ON_PARANOID(skb_shinfo(skb)->nr_frags < 1);
 		frag_i = 0;
@@ -1037,9 +1039,7 @@ static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
 		if (rc)
 			goto mem_err;
 	} else {
-		rc = tso_get_head_fragment(&state, efx, skb);
-		if (rc)
-			goto mem_err;
+		/* Payload starts in the header area. */
 		frag_i = -1;
 	}
 
-- 
cgit 


From dfa50be95cc2c42d243c33433a5ff977177a3236 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Fri, 8 Mar 2013 21:20:09 +0000
Subject: sfc: Implement firmware-assisted TSO for EF10

Segmentation remains in the driver, but we generate option descriptors
describing the required packet editing rather than making our own
copies.

Reduce tso_state::ipv4_id to 16 bits, so it doesn't overflow into the
TCP_FLAGS field of the option descriptor.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
 drivers/net/ethernet/sfc/tx.c | 173 +++++++++++++++++++++++++++++-------------
 1 file changed, 121 insertions(+), 52 deletions(-)

diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c
index 902535696928..a23ba0dbdd1d 100644
--- a/drivers/net/ethernet/sfc/tx.c
+++ b/drivers/net/ethernet/sfc/tx.c
@@ -21,6 +21,7 @@
 #include "efx.h"
 #include "nic.h"
 #include "workarounds.h"
+#include "ef10_regs.h"
 
 static void efx_dequeue_buffer(struct efx_tx_queue *tx_queue,
 			       struct efx_tx_buffer *buffer,
@@ -83,8 +84,10 @@ unsigned int efx_tx_max_skb_descs(struct efx_nic *efx)
 	 */
 	unsigned int max_descs = EFX_TSO_MAX_SEGS * 2 + MAX_SKB_FRAGS;
 
-	/* Possibly one more per segment for the alignment workaround */
-	if (EFX_WORKAROUND_5391(efx))
+	/* Possibly one more per segment for the alignment workaround,
+	 * or for option descriptors
+	 */
+	if (EFX_WORKAROUND_5391(efx) || efx_nic_rev(efx) >= EFX_REV_HUNT_A0)
 		max_descs += EFX_TSO_MAX_SEGS;
 
 	/* Possibly more for PCIe page boundaries within input fragments */
@@ -628,6 +631,9 @@ void efx_remove_tx_queue(struct efx_tx_queue *tx_queue)
  * @tcp_off: Offset of TCP header
  * @header_len: Number of bytes of header
  * @ip_base_len: IPv4 tot_len or IPv6 payload_len, before TCP payload
+ * @header_dma_addr: Header DMA address, when using option descriptors
+ * @header_unmap_len: Header DMA mapped length, or 0 if not using option
+ *	descriptors
  *
  * The state used during segmentation.  It is put into this data structure
  * just to make it easy to pass into inline functions.
@@ -636,7 +642,7 @@ struct tso_state {
 	/* Output position */
 	unsigned out_len;
 	unsigned seqnum;
-	unsigned ipv4_id;
+	u16 ipv4_id;
 	unsigned packet_space;
 
 	/* Input position */
@@ -651,6 +657,8 @@ struct tso_state {
 	unsigned int tcp_off;
 	unsigned header_len;
 	unsigned int ip_base_len;
+	dma_addr_t header_dma_addr;
+	unsigned int header_unmap_len;
 };
 
 
@@ -825,7 +833,10 @@ static void efx_enqueue_unwind(struct efx_tx_queue *tx_queue)
 static int tso_start(struct tso_state *st, struct efx_nic *efx,
 		     const struct sk_buff *skb)
 {
+	bool use_options = efx_nic_rev(efx) >= EFX_REV_HUNT_A0;
+	struct device *dma_dev = &efx->pci_dev->dev;
 	unsigned int header_len, in_len;
+	dma_addr_t dma_addr;
 
 	st->ip_off = skb_network_header(skb) - skb->data;
 	st->tcp_off = skb_transport_header(skb) - skb->data;
@@ -848,22 +859,32 @@ static int tso_start(struct tso_state *st, struct efx_nic *efx,
 
 	st->out_len = skb->len - header_len;
 
-	if (likely(in_len == 0)) {
-		st->unmap_len = 0;
+	if (!use_options) {
+		st->header_unmap_len = 0;
+
+		if (likely(in_len == 0)) {
+			st->dma_flags = 0;
+			st->unmap_len = 0;
+			return 0;
+		}
+
+		dma_addr = dma_map_single(dma_dev, skb->data + header_len,
+					  in_len, DMA_TO_DEVICE);
+		st->dma_flags = EFX_TX_BUF_MAP_SINGLE;
+		st->dma_addr = dma_addr;
+		st->unmap_addr = dma_addr;
+		st->unmap_len = in_len;
+	} else {
+		dma_addr = dma_map_single(dma_dev, skb->data,
+					  skb_headlen(skb), DMA_TO_DEVICE);
+		st->header_dma_addr = dma_addr;
+		st->header_unmap_len = skb_headlen(skb);
 		st->dma_flags = 0;
-		return 0;
+		st->dma_addr = dma_addr + header_len;
+		st->unmap_len = 0;
 	}
 
-	st->unmap_addr = dma_map_single(&efx->pci_dev->dev,
-					skb->data + header_len, in_len,
-					DMA_TO_DEVICE);
-	if (unlikely(dma_mapping_error(&efx->pci_dev->dev, st->unmap_addr)))
-		return -ENOMEM;
-
-	st->dma_flags = EFX_TX_BUF_MAP_SINGLE;
-	st->unmap_len = in_len;
-	st->dma_addr = st->unmap_addr;
-	return 0;
+	return unlikely(dma_mapping_error(dma_dev, dma_addr)) ? -ENOMEM : 0;
 }
 
 static int tso_get_fragment(struct tso_state *st, struct efx_nic *efx,
@@ -948,54 +969,97 @@ static int tso_start_new_packet(struct efx_tx_queue *tx_queue,
 {
 	struct efx_tx_buffer *buffer =
 		&tx_queue->buffer[tx_queue->insert_count & tx_queue->ptr_mask];
-	struct tcphdr *tsoh_th;
-	unsigned ip_length;
-	u8 *header;
-	int rc;
-
-	/* Allocate and insert a DMA-mapped header buffer. */
-	header = efx_tsoh_get_buffer(tx_queue, buffer, st->header_len);
-	if (!header)
-		return -ENOMEM;
+	bool is_last = st->out_len <= skb_shinfo(skb)->gso_size;
+	u8 tcp_flags_clear;
 
-	tsoh_th = (struct tcphdr *)(header + st->tcp_off);
-
-	/* Copy and update the headers. */
-	memcpy(header, skb->data, st->header_len);
-
-	tsoh_th->seq = htonl(st->seqnum);
-	st->seqnum += skb_shinfo(skb)->gso_size;
-	if (st->out_len > skb_shinfo(skb)->gso_size) {
-		/* This packet will not finish the TSO burst. */
+	if (!is_last) {
 		st->packet_space = skb_shinfo(skb)->gso_size;
-		tsoh_th->fin = 0;
-		tsoh_th->psh = 0;
+		tcp_flags_clear = 0x09; /* mask out FIN and PSH */
 	} else {
-		/* This packet will be the last in the TSO burst. */
 		st->packet_space = st->out_len;
-		tsoh_th->fin = tcp_hdr(skb)->fin;
-		tsoh_th->psh = tcp_hdr(skb)->psh;
+		tcp_flags_clear = 0x00;
 	}
-	ip_length = st->ip_base_len + st->packet_space;
 
-	if (st->protocol == htons(ETH_P_IP)) {
-		struct iphdr *tsoh_iph = (struct iphdr *)(header + st->ip_off);
+	if (!st->header_unmap_len) {
+		/* Allocate and insert a DMA-mapped header buffer. */
+		struct tcphdr *tsoh_th;
+		unsigned ip_length;
+		u8 *header;
+		int rc;
 
-		tsoh_iph->tot_len = htons(ip_length);
+		header = efx_tsoh_get_buffer(tx_queue, buffer, st->header_len);
+		if (!header)
+			return -ENOMEM;
 
-		/* Linux leaves suitable gaps in the IP ID space for us to fill. */
-		tsoh_iph->id = htons(st->ipv4_id);
-		st->ipv4_id++;
+		tsoh_th = (struct tcphdr *)(header + st->tcp_off);
+
+		/* Copy and update the headers. */
+		memcpy(header, skb->data, st->header_len);
+
+		tsoh_th->seq = htonl(st->seqnum);
+		((u8 *)tsoh_th)[13] &= ~tcp_flags_clear;
+
+		ip_length = st->ip_base_len + st->packet_space;
+
+		if (st->protocol == htons(ETH_P_IP)) {
+			struct iphdr *tsoh_iph =
+				(struct iphdr *)(header + st->ip_off);
+
+			tsoh_iph->tot_len = htons(ip_length);
+			tsoh_iph->id = htons(st->ipv4_id);
+		} else {
+			struct ipv6hdr *tsoh_iph =
+				(struct ipv6hdr *)(header + st->ip_off);
+
+			tsoh_iph->payload_len = htons(ip_length);
+		}
+
+		rc = efx_tso_put_header(tx_queue, buffer, header);
+		if (unlikely(rc))
+			return rc;
 	} else {
-		struct ipv6hdr *tsoh_iph =
-			(struct ipv6hdr *)(header + st->ip_off);
+		/* Send the original headers with a TSO option descriptor
+		 * in front
+		 */
+		u8 tcp_flags = ((u8 *)tcp_hdr(skb))[13] & ~tcp_flags_clear;
+
+		buffer->flags = EFX_TX_BUF_OPTION;
+		buffer->len = 0;
+		buffer->unmap_len = 0;
+		EFX_POPULATE_QWORD_5(buffer->option,
+				     ESF_DZ_TX_DESC_IS_OPT, 1,
+				     ESF_DZ_TX_OPTION_TYPE,
+				     ESE_DZ_TX_OPTION_DESC_TSO,
+				     ESF_DZ_TX_TSO_TCP_FLAGS, tcp_flags,
+				     ESF_DZ_TX_TSO_IP_ID, st->ipv4_id,
+				     ESF_DZ_TX_TSO_TCP_SEQNO, st->seqnum);
+		++tx_queue->insert_count;
 
-		tsoh_iph->payload_len = htons(ip_length);
+		/* We mapped the headers in tso_start().  Unmap them
+		 * when the last segment is completed.
+		 */
+		buffer = &tx_queue->buffer[tx_queue->insert_count &
+					   tx_queue->ptr_mask];
+		buffer->dma_addr = st->header_dma_addr;
+		buffer->len = st->header_len;
+		if (is_last) {
+			buffer->flags = EFX_TX_BUF_CONT | EFX_TX_BUF_MAP_SINGLE;
+			buffer->unmap_len = st->header_unmap_len;
+			/* Ensure we only unmap them once in case of a
+			 * later DMA mapping error and rollback
+			 */
+			st->header_unmap_len = 0;
+		} else {
+			buffer->flags = EFX_TX_BUF_CONT;
+			buffer->unmap_len = 0;
+		}
+		++tx_queue->insert_count;
 	}
 
-	rc = efx_tso_put_header(tx_queue, buffer, header);
-	if (unlikely(rc))
-		return rc;
+	st->seqnum += skb_shinfo(skb)->gso_size;
+
+	/* Linux leaves suitable gaps in the IP ID space for us to fill. */
+	++st->ipv4_id;
 
 	++tx_queue->tso_packets;
 
@@ -1091,6 +1155,11 @@ static int efx_enqueue_skb_tso(struct efx_tx_queue *tx_queue,
 				       state.unmap_len, DMA_TO_DEVICE);
 	}
 
+	/* Free the header DMA mapping, if using option descriptors */
+	if (state.header_unmap_len)
+		dma_unmap_single(&efx->pci_dev->dev, state.header_dma_addr,
+				 state.header_unmap_len, DMA_TO_DEVICE);
+
 	efx_enqueue_unwind(tx_queue);
 	return NETDEV_TX_OK;
 }
-- 
cgit 


From 183233bec8105c06341d8cd380db1d830d0efc00 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Fri, 28 Jun 2013 21:47:12 +0100
Subject: sfc: Allocate and link PIO buffers; map them with write-combining

Try to allocate a segment of PIO buffer to each TX channel.  If
allocation fails, log an error but continue.

PIO buffers must be mapped separately from the NIC registers, with
write-combining enabled.  Where the host page size is 4K, we could
potentially map each VI's registers and PIO buffer separately.
However, this would add significant complexity, and we also need to
support architectures such as POWER which have a greater page size.
So make a single contiguous write-combining mapping after the
uncacheable mapping, aligned to the host page size, and link PIO
buffers there.  Where necessary, allocate additional VIs within
the write-combining mapping purely for access to PIO buffers.

Link all TX buffers to TX queues and the additional VIs in
efx_ef10_dimension_resources() and in efx_ef10_init_nic() after
an MC reboot.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
 drivers/net/ethernet/sfc/ef10.c       | 317 +++++++++++++++++++++++++++++++++-
 drivers/net/ethernet/sfc/efx.h        |   1 +
 drivers/net/ethernet/sfc/io.h         |   5 +
 drivers/net/ethernet/sfc/net_driver.h |   5 +
 drivers/net/ethernet/sfc/nic.h        |  18 ++
 drivers/net/ethernet/sfc/tx.c         |  10 ++
 6 files changed, 353 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index 0a3a3b92a131..844ee7539d33 100644
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -285,6 +285,181 @@ static int efx_ef10_free_vis(struct efx_nic *efx)
 	return rc;
 }
 
+#ifdef EFX_USE_PIO
+
+static void efx_ef10_free_piobufs(struct efx_nic *efx)
+{
+	struct efx_ef10_nic_data *nic_data = efx->nic_data;
+	MCDI_DECLARE_BUF(inbuf, MC_CMD_FREE_PIOBUF_IN_LEN);
+	unsigned int i;
+	int rc;
+
+	BUILD_BUG_ON(MC_CMD_FREE_PIOBUF_OUT_LEN != 0);
+
+	for (i = 0; i < nic_data->n_piobufs; i++) {
+		MCDI_SET_DWORD(inbuf, FREE_PIOBUF_IN_PIOBUF_HANDLE,
+			       nic_data->piobuf_handle[i]);
+		rc = efx_mcdi_rpc(efx, MC_CMD_FREE_PIOBUF, inbuf, sizeof(inbuf),
+				  NULL, 0, NULL);
+		WARN_ON(rc);
+	}
+
+	nic_data->n_piobufs = 0;
+}
+
+static int efx_ef10_alloc_piobufs(struct efx_nic *efx, unsigned int n)
+{
+	struct efx_ef10_nic_data *nic_data = efx->nic_data;
+	MCDI_DECLARE_BUF(outbuf, MC_CMD_ALLOC_PIOBUF_OUT_LEN);
+	unsigned int i;
+	size_t outlen;
+	int rc = 0;
+
+	BUILD_BUG_ON(MC_CMD_ALLOC_PIOBUF_IN_LEN != 0);
+
+	for (i = 0; i < n; i++) {
+		rc = efx_mcdi_rpc(efx, MC_CMD_ALLOC_PIOBUF, NULL, 0,
+				  outbuf, sizeof(outbuf), &outlen);
+		if (rc)
+			break;
+		if (outlen < MC_CMD_ALLOC_PIOBUF_OUT_LEN) {
+			rc = -EIO;
+			break;
+		}
+		nic_data->piobuf_handle[i] =
+			MCDI_DWORD(outbuf, ALLOC_PIOBUF_OUT_PIOBUF_HANDLE);
+		netif_dbg(efx, probe, efx->net_dev,
+			  "allocated PIO buffer %u handle %x\n", i,
+			  nic_data->piobuf_handle[i]);
+	}
+
+	nic_data->n_piobufs = i;
+	if (rc)
+		efx_ef10_free_piobufs(efx);
+	return rc;
+}
+
+static int efx_ef10_link_piobufs(struct efx_nic *efx)
+{
+	struct efx_ef10_nic_data *nic_data = efx->nic_data;
+	MCDI_DECLARE_BUF(inbuf,
+			 max(MC_CMD_LINK_PIOBUF_IN_LEN,
+			     MC_CMD_UNLINK_PIOBUF_IN_LEN));
+	struct efx_channel *channel;
+	struct efx_tx_queue *tx_queue;
+	unsigned int offset, index;
+	int rc;
+
+	BUILD_BUG_ON(MC_CMD_LINK_PIOBUF_OUT_LEN != 0);
+	BUILD_BUG_ON(MC_CMD_UNLINK_PIOBUF_OUT_LEN != 0);
+
+	/* Link a buffer to each VI in the write-combining mapping */
+	for (index = 0; index < nic_data->n_piobufs; ++index) {
+		MCDI_SET_DWORD(inbuf, LINK_PIOBUF_IN_PIOBUF_HANDLE,
+			       nic_data->piobuf_handle[index]);
+		MCDI_SET_DWORD(inbuf, LINK_PIOBUF_IN_TXQ_INSTANCE,
+			       nic_data->pio_write_vi_base + index);
+		rc = efx_mcdi_rpc(efx, MC_CMD_LINK_PIOBUF,
+				  inbuf, MC_CMD_LINK_PIOBUF_IN_LEN,
+				  NULL, 0, NULL);
+		if (rc) {
+			netif_err(efx, drv, efx->net_dev,
+				  "failed to link VI %u to PIO buffer %u (%d)\n",
+				  nic_data->pio_write_vi_base + index, index,
+				  rc);
+			goto fail;
+		}
+		netif_dbg(efx, probe, efx->net_dev,
+			  "linked VI %u to PIO buffer %u\n",
+			  nic_data->pio_write_vi_base + index, index);
+	}
+
+	/* Link a buffer to each TX queue */
+	efx_for_each_channel(channel, efx) {
+		efx_for_each_channel_tx_queue(tx_queue, channel) {
+			/* We assign the PIO buffers to queues in
+			 * reverse order to allow for the following
+			 * special case.
+			 */
+			offset = ((efx->tx_channel_offset + efx->n_tx_channels -
+				   tx_queue->channel->channel - 1) *
+				  efx_piobuf_size);
+			index = offset / ER_DZ_TX_PIOBUF_SIZE;
+			offset = offset % ER_DZ_TX_PIOBUF_SIZE;
+
+			/* When the host page size is 4K, the first
+			 * host page in the WC mapping may be within
+			 * the same VI page as the last TX queue.  We
+			 * can only link one buffer to each VI.
+			 */
+			if (tx_queue->queue == nic_data->pio_write_vi_base) {
+				BUG_ON(index != 0);
+				rc = 0;
+			} else {
+				MCDI_SET_DWORD(inbuf,
+					       LINK_PIOBUF_IN_PIOBUF_HANDLE,
+					       nic_data->piobuf_handle[index]);
+				MCDI_SET_DWORD(inbuf,
+					       LINK_PIOBUF_IN_TXQ_INSTANCE,
+					       tx_queue->queue);
+				rc = efx_mcdi_rpc(efx, MC_CMD_LINK_PIOBUF,
+						  inbuf, MC_CMD_LINK_PIOBUF_IN_LEN,
+						  NULL, 0, NULL);
+			}
+
+			if (rc) {
+				/* This is non-fatal; the TX path just
+				 * won't use PIO for this queue
+				 */
+				netif_err(efx, drv, efx->net_dev,
+					  "failed to link VI %u to PIO buffer %u (%d)\n",
+					  tx_queue->queue, index, rc);
+				tx_queue->piobuf = NULL;
+			} else {
+				tx_queue->piobuf =
+					nic_data->pio_write_base +
+					index * EFX_VI_PAGE_SIZE + offset;
+				tx_queue->piobuf_offset = offset;
+				netif_dbg(efx, probe, efx->net_dev,
+					  "linked VI %u to PIO buffer %u offset %x addr %p\n",
+					  tx_queue->queue, index,
+					  tx_queue->piobuf_offset,
+					  tx_queue->piobuf);
+			}
+		}
+	}
+
+	return 0;
+
+fail:
+	while (index--) {
+		MCDI_SET_DWORD(inbuf, UNLINK_PIOBUF_IN_TXQ_INSTANCE,
+			       nic_data->pio_write_vi_base + index);
+		efx_mcdi_rpc(efx, MC_CMD_UNLINK_PIOBUF,
+			     inbuf, MC_CMD_UNLINK_PIOBUF_IN_LEN,
+			     NULL, 0, NULL);
+	}
+	return rc;
+}
+
+#else /* !EFX_USE_PIO */
+
+static int efx_ef10_alloc_piobufs(struct efx_nic *efx, unsigned int n)
+{
+	return n == 0 ? 0 : -ENOBUFS;
+}
+
+static int efx_ef10_link_piobufs(struct efx_nic *efx)
+{
+	return 0;
+}
+
+static void efx_ef10_free_piobufs(struct efx_nic *efx)
+{
+}
+
+#endif /* EFX_USE_PIO */
+
 static void efx_ef10_remove(struct efx_nic *efx)
 {
 	struct efx_ef10_nic_data *nic_data = efx->nic_data;
@@ -295,9 +470,15 @@ static void efx_ef10_remove(struct efx_nic *efx)
 	/* This needs to be after efx_ptp_remove_channel() with no filters */
 	efx_ef10_rx_free_indir_table(efx);
 
+	if (nic_data->wc_membase)
+		iounmap(nic_data->wc_membase);
+
 	rc = efx_ef10_free_vis(efx);
 	WARN_ON(rc != 0);
 
+	if (!nic_data->must_restore_piobufs)
+		efx_ef10_free_piobufs(efx);
+
 	efx_mcdi_fini(efx);
 	efx_nic_free_buffer(efx, &nic_data->mcdi_buf);
 	kfree(nic_data);
@@ -330,12 +511,126 @@ static int efx_ef10_alloc_vis(struct efx_nic *efx,
 	return 0;
 }
 
+/* Note that the failure path of this function does not free
+ * resources, as this will be done by efx_ef10_remove().
+ */
 static int efx_ef10_dimension_resources(struct efx_nic *efx)
 {
-	unsigned int n_vis =
-		max(efx->n_channels, efx->n_tx_channels * EFX_TXQ_TYPES);
+	struct efx_ef10_nic_data *nic_data = efx->nic_data;
+	unsigned int uc_mem_map_size, wc_mem_map_size;
+	unsigned int min_vis, pio_write_vi_base, max_vis;
+	void __iomem *membase;
+	int rc;
+
+	min_vis = max(efx->n_channels, efx->n_tx_channels * EFX_TXQ_TYPES);
+
+#ifdef EFX_USE_PIO
+	/* Try to allocate PIO buffers if wanted and if the full
+	 * number of PIO buffers would be sufficient to allocate one
+	 * copy-buffer per TX channel.  Failure is non-fatal, as there
+	 * are only a small number of PIO buffers shared between all
+	 * functions of the controller.
+	 */
+	if (efx_piobuf_size != 0 &&
+	    ER_DZ_TX_PIOBUF_SIZE / efx_piobuf_size * EF10_TX_PIOBUF_COUNT >=
+	    efx->n_tx_channels) {
+		unsigned int n_piobufs =
+			DIV_ROUND_UP(efx->n_tx_channels,
+				     ER_DZ_TX_PIOBUF_SIZE / efx_piobuf_size);
+
+		rc = efx_ef10_alloc_piobufs(efx, n_piobufs);
+		if (rc)
+			netif_err(efx, probe, efx->net_dev,
+				  "failed to allocate PIO buffers (%d)\n", rc);
+		else
+			netif_dbg(efx, probe, efx->net_dev,
+				  "allocated %u PIO buffers\n", n_piobufs);
+	}
+#else
+	nic_data->n_piobufs = 0;
+#endif
 
-	return efx_ef10_alloc_vis(efx, n_vis, n_vis);
+	/* PIO buffers should be mapped with write-combining enabled,
+	 * and we want to make single UC and WC mappings rather than
+	 * several of each (in fact that's the only option if host
+	 * page size is >4K).  So we may allocate some extra VIs just
+	 * for writing PIO buffers through.
+	 */
+	uc_mem_map_size = PAGE_ALIGN((min_vis - 1) * EFX_VI_PAGE_SIZE +
+				     ER_DZ_TX_PIOBUF);
+	if (nic_data->n_piobufs) {
+		pio_write_vi_base = uc_mem_map_size / EFX_VI_PAGE_SIZE;
+		wc_mem_map_size = (PAGE_ALIGN((pio_write_vi_base +
+					       nic_data->n_piobufs) *
+					      EFX_VI_PAGE_SIZE) -
+				   uc_mem_map_size);
+		max_vis = pio_write_vi_base + nic_data->n_piobufs;
+	} else {
+		pio_write_vi_base = 0;
+		wc_mem_map_size = 0;
+		max_vis = min_vis;
+	}
+
+	/* In case the last attached driver failed to free VIs, do it now */
+	rc = efx_ef10_free_vis(efx);
+	if (rc != 0)
+		return rc;
+
+	rc = efx_ef10_alloc_vis(efx, min_vis, max_vis);
+	if (rc != 0)
+		return rc;
+
+	/* If we didn't get enough VIs to map all the PIO buffers, free the
+	 * PIO buffers
+	 */
+	if (nic_data->n_piobufs &&
+	    nic_data->n_allocated_vis <
+	    pio_write_vi_base + nic_data->n_piobufs) {
+		netif_dbg(efx, probe, efx->net_dev,
+			  "%u VIs are not sufficient to map %u PIO buffers\n",
+			  nic_data->n_allocated_vis, nic_data->n_piobufs);
+		efx_ef10_free_piobufs(efx);
+	}
+
+	/* Shrink the original UC mapping of the memory BAR */
+	membase = ioremap_nocache(efx->membase_phys, uc_mem_map_size);
+	if (!membase) {
+		netif_err(efx, probe, efx->net_dev,
+			  "could not shrink memory BAR to %x\n",
+			  uc_mem_map_size);
+		return -ENOMEM;
+	}
+	iounmap(efx->membase);
+	efx->membase = membase;
+
+	/* Set up the WC mapping if needed */
+	if (wc_mem_map_size) {
+		nic_data->wc_membase = ioremap_wc(efx->membase_phys +
+						  uc_mem_map_size,
+						  wc_mem_map_size);
+		if (!nic_data->wc_membase) {
+			netif_err(efx, probe, efx->net_dev,
+				  "could not allocate WC mapping of size %x\n",
+				  wc_mem_map_size);
+			return -ENOMEM;
+		}
+		nic_data->pio_write_vi_base = pio_write_vi_base;
+		nic_data->pio_write_base =
+			nic_data->wc_membase +
+			(pio_write_vi_base * EFX_VI_PAGE_SIZE + ER_DZ_TX_PIOBUF -
+			 uc_mem_map_size);
+
+		rc = efx_ef10_link_piobufs(efx);
+		if (rc)
+			efx_ef10_free_piobufs(efx);
+	}
+
+	netif_dbg(efx, probe, efx->net_dev,
+		  "memory BAR at %pa (virtual %p+%x UC, %p+%x WC)\n",
+		  &efx->membase_phys, efx->membase, uc_mem_map_size,
+		  nic_data->wc_membase, wc_mem_map_size);
+
+	return 0;
 }
 
 static int efx_ef10_init_nic(struct efx_nic *efx)
@@ -359,6 +654,21 @@ static int efx_ef10_init_nic(struct efx_nic *efx)
 		nic_data->must_realloc_vis = false;
 	}
 
+	if (nic_data->must_restore_piobufs && nic_data->n_piobufs) {
+		rc = efx_ef10_alloc_piobufs(efx, nic_data->n_piobufs);
+		if (rc == 0) {
+			rc = efx_ef10_link_piobufs(efx);
+			if (rc)
+				efx_ef10_free_piobufs(efx);
+		}
+
+		/* Log an error on failure, but this is non-fatal */
+		if (rc)
+			netif_err(efx, drv, efx->net_dev,
+				  "failed to restore PIO buffers (%d)\n", rc);
+		nic_data->must_restore_piobufs = false;
+	}
+
 	efx_ef10_rx_push_indir_table(efx);
 	return 0;
 }
@@ -716,6 +1026,7 @@ static int efx_ef10_mcdi_poll_reboot(struct efx_nic *efx)
 	/* All our allocations have been reset */
 	nic_data->must_realloc_vis = true;
 	nic_data->must_restore_filters = true;
+	nic_data->must_restore_piobufs = true;
 	nic_data->rx_rss_context = EFX_EF10_RSS_CONTEXT_INVALID;
 
 	/* The datapath firmware might have been changed */
diff --git a/drivers/net/ethernet/sfc/efx.h b/drivers/net/ethernet/sfc/efx.h
index 34d00f5771fe..31d01284e333 100644
--- a/drivers/net/ethernet/sfc/efx.h
+++ b/drivers/net/ethernet/sfc/efx.h
@@ -30,6 +30,7 @@ efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb);
 extern void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index);
 extern int efx_setup_tc(struct net_device *net_dev, u8 num_tc);
 extern unsigned int efx_tx_max_skb_descs(struct efx_nic *efx);
+extern unsigned int efx_piobuf_size;
 
 /* RX */
 extern void efx_rx_config_page_split(struct efx_nic *efx);
diff --git a/drivers/net/ethernet/sfc/io.h b/drivers/net/ethernet/sfc/io.h
index 96ce507d8602..4d3f119b67b3 100644
--- a/drivers/net/ethernet/sfc/io.h
+++ b/drivers/net/ethernet/sfc/io.h
@@ -66,6 +66,11 @@
 #define EFX_USE_QWORD_IO 1
 #endif
 
+/* PIO is a win only if write-combining is possible */
+#ifdef ARCH_HAS_IOREMAP_WC
+#define EFX_USE_PIO 1
+#endif
+
 #ifdef EFX_USE_QWORD_IO
 static inline void _efx_writeq(struct efx_nic *efx, __le64 value,
 				  unsigned int reg)
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h
index b172ed133055..6febecc46e86 100644
--- a/drivers/net/ethernet/sfc/net_driver.h
+++ b/drivers/net/ethernet/sfc/net_driver.h
@@ -182,6 +182,9 @@ struct efx_tx_buffer {
  * @tsoh_page: Array of pages of TSO header buffers
  * @txd: The hardware descriptor ring
  * @ptr_mask: The size of the ring minus 1.
+ * @piobuf: PIO buffer region for this TX queue (shared with its partner).
+ *	Size of the region is efx_piobuf_size.
+ * @piobuf_offset: Buffer offset to be specified in PIO descriptors
  * @initialised: Has hardware queue been initialised?
  * @read_count: Current read pointer.
  *	This is the number of buffers that have been removed from both rings.
@@ -223,6 +226,8 @@ struct efx_tx_queue {
 	struct efx_buffer *tsoh_page;
 	struct efx_special_buffer txd;
 	unsigned int ptr_mask;
+	void __iomem *piobuf;
+	unsigned int piobuf_offset;
 	bool initialised;
 
 	/* Members used mainly on the completion path */
diff --git a/drivers/net/ethernet/sfc/nic.h b/drivers/net/ethernet/sfc/nic.h
index fda29d39032f..db70005999c3 100644
--- a/drivers/net/ethernet/sfc/nic.h
+++ b/drivers/net/ethernet/sfc/nic.h
@@ -389,6 +389,12 @@ enum {
 	EF10_STAT_COUNT
 };
 
+/* Maximum number of TX PIO buffers we may allocate to a function.
+ * This matches the total number of buffers on each SFC9100-family
+ * controller.
+ */
+#define EF10_TX_PIOBUF_COUNT 16
+
 /**
  * struct efx_ef10_nic_data - EF10 architecture NIC state
  * @mcdi_buf: DMA buffer for MCDI
@@ -397,6 +403,13 @@ enum {
  * @n_allocated_vis: Number of VIs allocated to this function
  * @must_realloc_vis: Flag: VIs have yet to be reallocated after MC reboot
  * @must_restore_filters: Flag: filters have yet to be restored after MC reboot
+ * @n_piobufs: Number of PIO buffers allocated to this function
+ * @wc_membase: Base address of write-combining mapping of the memory BAR
+ * @pio_write_base: Base address for writing PIO buffers
+ * @pio_write_vi_base: Relative VI number for @pio_write_base
+ * @piobuf_handle: Handle of each PIO buffer allocated
+ * @must_restore_piobufs: Flag: PIO buffers have yet to be restored after MC
+ *	reboot
  * @rx_rss_context: Firmware handle for our RSS context
  * @stats: Hardware statistics
  * @workaround_35388: Flag: firmware supports workaround for bug 35388
@@ -412,6 +425,11 @@ struct efx_ef10_nic_data {
 	unsigned int n_allocated_vis;
 	bool must_realloc_vis;
 	bool must_restore_filters;
+	unsigned int n_piobufs;
+	void __iomem *wc_membase, *pio_write_base;
+	unsigned int pio_write_vi_base;
+	unsigned int piobuf_handle[EF10_TX_PIOBUF_COUNT];
+	bool must_restore_piobufs;
 	u32 rx_rss_context;
 	u64 stats[EF10_STAT_COUNT];
 	bool workaround_35388;
diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c
index a23ba0dbdd1d..87543476382d 100644
--- a/drivers/net/ethernet/sfc/tx.c
+++ b/drivers/net/ethernet/sfc/tx.c
@@ -17,12 +17,22 @@
 #include <net/ipv6.h>
 #include <linux/if_ether.h>
 #include <linux/highmem.h>
+#include <linux/cache.h>
 #include "net_driver.h"
 #include "efx.h"
+#include "io.h"
 #include "nic.h"
 #include "workarounds.h"
 #include "ef10_regs.h"
 
+#ifdef EFX_USE_PIO
+
+#define EFX_PIOBUF_SIZE_MAX ER_DZ_TX_PIOBUF_SIZE
+#define EFX_PIOBUF_SIZE_DEF ALIGN(256, L1_CACHE_BYTES)
+unsigned int efx_piobuf_size __read_mostly = EFX_PIOBUF_SIZE_DEF;
+
+#endif /* EFX_USE_PIO */
+
 static void efx_dequeue_buffer(struct efx_tx_queue *tx_queue,
 			       struct efx_tx_buffer *buffer,
 			       unsigned int *pkts_compl,
-- 
cgit 


From 306a27825c54e840bc33db924878fe6ef2a2be4f Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Fri, 28 Jun 2013 21:47:15 +0100
Subject: sfc: Separate out queue-empty check from efx_nic_may_push_tx_desc()

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
 drivers/net/ethernet/sfc/nic.h | 28 ++++++++++++++++++++++------
 1 file changed, 22 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/sfc/nic.h b/drivers/net/ethernet/sfc/nic.h
index db70005999c3..609f06769245 100644
--- a/drivers/net/ethernet/sfc/nic.h
+++ b/drivers/net/ethernet/sfc/nic.h
@@ -71,6 +71,26 @@ efx_tx_desc(struct efx_tx_queue *tx_queue, unsigned int index)
 	return ((efx_qword_t *) (tx_queue->txd.buf.addr)) + index;
 }
 
+/* Report whether the NIC considers this TX queue empty, given the
+ * write_count used for the last doorbell push.  May return false
+ * negative.
+ */
+static inline bool __efx_nic_tx_is_empty(struct efx_tx_queue *tx_queue,
+					 unsigned int write_count)
+{
+	unsigned int empty_read_count = ACCESS_ONCE(tx_queue->empty_read_count);
+
+	if (empty_read_count == 0)
+		return false;
+
+	return ((empty_read_count ^ write_count) & ~EFX_EMPTY_COUNT_VALID) == 0;
+}
+
+static inline bool efx_nic_tx_is_empty(struct efx_tx_queue *tx_queue)
+{
+	return __efx_nic_tx_is_empty(tx_queue, tx_queue->write_count);
+}
+
 /* Decide whether to push a TX descriptor to the NIC vs merely writing
  * the doorbell.  This can reduce latency when we are adding a single
  * descriptor to an empty queue, but is otherwise pointless.  Further,
@@ -80,14 +100,10 @@ efx_tx_desc(struct efx_tx_queue *tx_queue, unsigned int index)
 static inline bool efx_nic_may_push_tx_desc(struct efx_tx_queue *tx_queue,
 					    unsigned int write_count)
 {
-	unsigned empty_read_count = ACCESS_ONCE(tx_queue->empty_read_count);
-
-	if (empty_read_count == 0)
-		return false;
+	bool was_empty = __efx_nic_tx_is_empty(tx_queue, write_count);
 
 	tx_queue->empty_read_count = 0;
-	return ((empty_read_count ^ write_count) & ~EFX_EMPTY_COUNT_VALID) == 0
-		&& tx_queue->write_count - write_count == 1;
+	return was_empty && tx_queue->write_count - write_count == 1;
 }
 
 /* Returns a pointer to the specified descriptor in the RX descriptor queue */
-- 
cgit 


From 0fe5565b64667677a405cf14df49a7af8de4bff4 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Fri, 28 Jun 2013 21:47:15 +0100
Subject: sfc: Introduce inline functions to simplify TX insertion

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
 drivers/net/ethernet/sfc/tx.c | 53 +++++++++++++++++++++++++++----------------
 1 file changed, 33 insertions(+), 20 deletions(-)

diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c
index 87543476382d..6cecda3b3cbe 100644
--- a/drivers/net/ethernet/sfc/tx.c
+++ b/drivers/net/ethernet/sfc/tx.c
@@ -33,6 +33,31 @@ unsigned int efx_piobuf_size __read_mostly = EFX_PIOBUF_SIZE_DEF;
 
 #endif /* EFX_USE_PIO */
 
+static inline unsigned int
+efx_tx_queue_get_insert_index(const struct efx_tx_queue *tx_queue)
+{
+	return tx_queue->insert_count & tx_queue->ptr_mask;
+}
+
+static inline struct efx_tx_buffer *
+__efx_tx_queue_get_insert_buffer(const struct efx_tx_queue *tx_queue)
+{
+	return &tx_queue->buffer[efx_tx_queue_get_insert_index(tx_queue)];
+}
+
+static inline struct efx_tx_buffer *
+efx_tx_queue_get_insert_buffer(const struct efx_tx_queue *tx_queue)
+{
+	struct efx_tx_buffer *buffer =
+		__efx_tx_queue_get_insert_buffer(tx_queue);
+
+	EFX_BUG_ON_PARANOID(buffer->len);
+	EFX_BUG_ON_PARANOID(buffer->flags);
+	EFX_BUG_ON_PARANOID(buffer->unmap_len);
+
+	return buffer;
+}
+
 static void efx_dequeue_buffer(struct efx_tx_queue *tx_queue,
 			       struct efx_tx_buffer *buffer,
 			       unsigned int *pkts_compl,
@@ -180,7 +205,7 @@ netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
 	struct device *dma_dev = &efx->pci_dev->dev;
 	struct efx_tx_buffer *buffer;
 	skb_frag_t *fragment;
-	unsigned int len, unmap_len = 0, insert_ptr;
+	unsigned int len, unmap_len = 0;
 	dma_addr_t dma_addr, unmap_addr = 0;
 	unsigned int dma_len;
 	unsigned short dma_flags;
@@ -221,11 +246,7 @@ netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
 
 		/* Add to TX queue, splitting across DMA boundaries */
 		do {
-			insert_ptr = tx_queue->insert_count & tx_queue->ptr_mask;
-			buffer = &tx_queue->buffer[insert_ptr];
-			EFX_BUG_ON_PARANOID(buffer->flags);
-			EFX_BUG_ON_PARANOID(buffer->len);
-			EFX_BUG_ON_PARANOID(buffer->unmap_len);
+			buffer = efx_tx_queue_get_insert_buffer(tx_queue);
 
 			dma_len = efx_max_tx_len(efx, dma_addr);
 			if (likely(dma_len >= len))
@@ -283,8 +304,7 @@ netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
 	while (tx_queue->insert_count != tx_queue->write_count) {
 		unsigned int pkts_compl = 0, bytes_compl = 0;
 		--tx_queue->insert_count;
-		insert_ptr = tx_queue->insert_count & tx_queue->ptr_mask;
-		buffer = &tx_queue->buffer[insert_ptr];
+		buffer = __efx_tx_queue_get_insert_buffer(tx_queue);
 		efx_dequeue_buffer(tx_queue, buffer, &pkts_compl, &bytes_compl);
 	}
 
@@ -755,23 +775,18 @@ static void efx_tx_queue_insert(struct efx_tx_queue *tx_queue,
 {
 	struct efx_tx_buffer *buffer;
 	struct efx_nic *efx = tx_queue->efx;
-	unsigned dma_len, insert_ptr;
+	unsigned dma_len;
 
 	EFX_BUG_ON_PARANOID(len <= 0);
 
 	while (1) {
-		insert_ptr = tx_queue->insert_count & tx_queue->ptr_mask;
-		buffer = &tx_queue->buffer[insert_ptr];
+		buffer = efx_tx_queue_get_insert_buffer(tx_queue);
 		++tx_queue->insert_count;
 
 		EFX_BUG_ON_PARANOID(tx_queue->insert_count -
 				    tx_queue->read_count >=
 				    efx->txq_entries);
 
-		EFX_BUG_ON_PARANOID(buffer->len);
-		EFX_BUG_ON_PARANOID(buffer->unmap_len);
-		EFX_BUG_ON_PARANOID(buffer->flags);
-
 		buffer->dma_addr = dma_addr;
 
 		dma_len = efx_max_tx_len(efx, dma_addr);
@@ -832,8 +847,7 @@ static void efx_enqueue_unwind(struct efx_tx_queue *tx_queue)
 	/* Work backwards until we hit the original insert pointer value */
 	while (tx_queue->insert_count != tx_queue->write_count) {
 		--tx_queue->insert_count;
-		buffer = &tx_queue->buffer[tx_queue->insert_count &
-					   tx_queue->ptr_mask];
+		buffer = __efx_tx_queue_get_insert_buffer(tx_queue);
 		efx_dequeue_buffer(tx_queue, buffer, NULL, NULL);
 	}
 }
@@ -978,7 +992,7 @@ static int tso_start_new_packet(struct efx_tx_queue *tx_queue,
 				struct tso_state *st)
 {
 	struct efx_tx_buffer *buffer =
-		&tx_queue->buffer[tx_queue->insert_count & tx_queue->ptr_mask];
+		efx_tx_queue_get_insert_buffer(tx_queue);
 	bool is_last = st->out_len <= skb_shinfo(skb)->gso_size;
 	u8 tcp_flags_clear;
 
@@ -1048,8 +1062,7 @@ static int tso_start_new_packet(struct efx_tx_queue *tx_queue,
 		/* We mapped the headers in tso_start().  Unmap them
 		 * when the last segment is completed.
 		 */
-		buffer = &tx_queue->buffer[tx_queue->insert_count &
-					   tx_queue->ptr_mask];
+		buffer = efx_tx_queue_get_insert_buffer(tx_queue);
 		buffer->dma_addr = st->header_dma_addr;
 		buffer->len = st->header_len;
 		if (is_last) {
-- 
cgit 


From ee45fd92c739db5b7950163d91dfe5f016af6d24 Mon Sep 17 00:00:00 2001
From: Jon Cooper <jcooper@solarflare.com>
Date: Mon, 2 Sep 2013 18:24:29 +0100
Subject: sfc: Use TX PIO for sufficiently small packets

Sufficiently small linear packets can be copied into the PIO buffer
with a single call to memcpy_toio().  Non-linear packets require an
intermediate cache-line-sized buffer.

[bwh: I wrote the first version of this, but Jon did the hard work to
 handle non-linear packets.]
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
 drivers/net/ethernet/sfc/ef10_regs.h  |   1 +
 drivers/net/ethernet/sfc/ethtool.c    |   1 +
 drivers/net/ethernet/sfc/net_driver.h |   2 +
 drivers/net/ethernet/sfc/tx.c         | 151 ++++++++++++++++++++++++++++++++++
 4 files changed, 155 insertions(+)

diff --git a/drivers/net/ethernet/sfc/ef10_regs.h b/drivers/net/ethernet/sfc/ef10_regs.h
index b3f4e3755fd9..207ac9a1e3de 100644
--- a/drivers/net/ethernet/sfc/ef10_regs.h
+++ b/drivers/net/ethernet/sfc/ef10_regs.h
@@ -315,6 +315,7 @@
 #define	ESF_DZ_TX_PIO_TYPE_WIDTH 1
 #define	ESF_DZ_TX_PIO_OPT_LBN 60
 #define	ESF_DZ_TX_PIO_OPT_WIDTH 3
+#define	ESE_DZ_TX_OPTION_DESC_PIO 1
 #define	ESF_DZ_TX_PIO_CONT_LBN 59
 #define	ESF_DZ_TX_PIO_CONT_WIDTH 1
 #define	ESF_DZ_TX_PIO_BYTE_CNT_LBN 32
diff --git a/drivers/net/ethernet/sfc/ethtool.c b/drivers/net/ethernet/sfc/ethtool.c
index c8dc407513b0..1f529fa2edb1 100644
--- a/drivers/net/ethernet/sfc/ethtool.c
+++ b/drivers/net/ethernet/sfc/ethtool.c
@@ -70,6 +70,7 @@ static const struct efx_sw_stat_desc efx_sw_stat_desc[] = {
 	EFX_ETHTOOL_UINT_TXQ_STAT(tso_long_headers),
 	EFX_ETHTOOL_UINT_TXQ_STAT(tso_packets),
 	EFX_ETHTOOL_UINT_TXQ_STAT(pushes),
+	EFX_ETHTOOL_UINT_TXQ_STAT(pio_packets),
 	EFX_ETHTOOL_ATOMIC_NIC_ERROR_STAT(rx_reset),
 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_tobe_disc),
 	EFX_ETHTOOL_UINT_CHANNEL_STAT(rx_ip_hdr_chksum_err),
diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h
index 6febecc46e86..aac22a1e85b8 100644
--- a/drivers/net/ethernet/sfc/net_driver.h
+++ b/drivers/net/ethernet/sfc/net_driver.h
@@ -212,6 +212,7 @@ struct efx_tx_buffer {
  *	blocks
  * @tso_packets: Number of packets via the TSO xmit path
  * @pushes: Number of times the TX push feature has been used
+ * @pio_packets: Number of times the TX PIO feature has been used
  * @empty_read_count: If the completion path has seen the queue as empty
  *	and the transmission path has not yet checked this, the value of
  *	@read_count bitwise-added to %EFX_EMPTY_COUNT_VALID; otherwise 0.
@@ -243,6 +244,7 @@ struct efx_tx_queue {
 	unsigned int tso_long_headers;
 	unsigned int tso_packets;
 	unsigned int pushes;
+	unsigned int pio_packets;
 
 	/* Members shared between paths and sometimes updated */
 	unsigned int empty_read_count ____cacheline_aligned_in_smp;
diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c
index 6cecda3b3cbe..282692c48e6b 100644
--- a/drivers/net/ethernet/sfc/tx.c
+++ b/drivers/net/ethernet/sfc/tx.c
@@ -183,6 +183,145 @@ static void efx_tx_maybe_stop_queue(struct efx_tx_queue *txq1)
 	}
 }
 
+#ifdef EFX_USE_PIO
+
+struct efx_short_copy_buffer {
+	int used;
+	u8 buf[L1_CACHE_BYTES];
+};
+
+/* Copy to PIO, respecting that writes to PIO buffers must be dword aligned.
+ * Advances piobuf pointer. Leaves additional data in the copy buffer.
+ */
+static void efx_memcpy_toio_aligned(struct efx_nic *efx, u8 __iomem **piobuf,
+				    u8 *data, int len,
+				    struct efx_short_copy_buffer *copy_buf)
+{
+	int block_len = len & ~(sizeof(copy_buf->buf) - 1);
+
+	memcpy_toio(*piobuf, data, block_len);
+	*piobuf += block_len;
+	len -= block_len;
+
+	if (len) {
+		data += block_len;
+		BUG_ON(copy_buf->used);
+		BUG_ON(len > sizeof(copy_buf->buf));
+		memcpy(copy_buf->buf, data, len);
+		copy_buf->used = len;
+	}
+}
+
+/* Copy to PIO, respecting dword alignment, popping data from copy buffer first.
+ * Advances piobuf pointer. Leaves additional data in the copy buffer.
+ */
+static void efx_memcpy_toio_aligned_cb(struct efx_nic *efx, u8 __iomem **piobuf,
+				       u8 *data, int len,
+				       struct efx_short_copy_buffer *copy_buf)
+{
+	if (copy_buf->used) {
+		/* if the copy buffer is partially full, fill it up and write */
+		int copy_to_buf =
+			min_t(int, sizeof(copy_buf->buf) - copy_buf->used, len);
+
+		memcpy(copy_buf->buf + copy_buf->used, data, copy_to_buf);
+		copy_buf->used += copy_to_buf;
+
+		/* if we didn't fill it up then we're done for now */
+		if (copy_buf->used < sizeof(copy_buf->buf))
+			return;
+
+		memcpy_toio(*piobuf, copy_buf->buf, sizeof(copy_buf->buf));
+		*piobuf += sizeof(copy_buf->buf);
+		data += copy_to_buf;
+		len -= copy_to_buf;
+		copy_buf->used = 0;
+	}
+
+	efx_memcpy_toio_aligned(efx, piobuf, data, len, copy_buf);
+}
+
+static void efx_flush_copy_buffer(struct efx_nic *efx, u8 __iomem *piobuf,
+				  struct efx_short_copy_buffer *copy_buf)
+{
+	/* if there's anything in it, write the whole buffer, including junk */
+	if (copy_buf->used)
+		memcpy_toio(piobuf, copy_buf->buf, sizeof(copy_buf->buf));
+}
+
+/* Traverse skb structure and copy fragments in to PIO buffer.
+ * Advances piobuf pointer.
+ */
+static void efx_skb_copy_bits_to_pio(struct efx_nic *efx, struct sk_buff *skb,
+				     u8 __iomem **piobuf,
+				     struct efx_short_copy_buffer *copy_buf)
+{
+	int i;
+
+	efx_memcpy_toio_aligned(efx, piobuf, skb->data, skb_headlen(skb),
+				copy_buf);
+
+	for (i = 0; i < skb_shinfo(skb)->nr_frags; ++i) {
+		skb_frag_t *f = &skb_shinfo(skb)->frags[i];
+		u8 *vaddr;
+
+		vaddr = kmap_atomic(skb_frag_page(f));
+
+		efx_memcpy_toio_aligned_cb(efx, piobuf, vaddr + f->page_offset,
+					   skb_frag_size(f), copy_buf);
+		kunmap_atomic(vaddr);
+	}
+
+	EFX_BUG_ON_PARANOID(skb_shinfo(skb)->frag_list);
+}
+
+static struct efx_tx_buffer *
+efx_enqueue_skb_pio(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
+{
+	struct efx_tx_buffer *buffer =
+		efx_tx_queue_get_insert_buffer(tx_queue);
+	u8 __iomem *piobuf = tx_queue->piobuf;
+
+	/* Copy to PIO buffer. Ensure the writes are padded to the end
+	 * of a cache line, as this is required for write-combining to be
+	 * effective on at least x86.
+	 */
+
+	if (skb_shinfo(skb)->nr_frags) {
+		/* The size of the copy buffer will ensure all writes
+		 * are the size of a cache line.
+		 */
+		struct efx_short_copy_buffer copy_buf;
+
+		copy_buf.used = 0;
+
+		efx_skb_copy_bits_to_pio(tx_queue->efx, skb,
+					 &piobuf, &copy_buf);
+		efx_flush_copy_buffer(tx_queue->efx, piobuf, &copy_buf);
+	} else {
+		/* Pad the write to the size of a cache line.
+		 * We can do this because we know the skb_shared_info sruct is
+		 * after the source, and the destination buffer is big enough.
+		 */
+		BUILD_BUG_ON(L1_CACHE_BYTES >
+			     SKB_DATA_ALIGN(sizeof(struct skb_shared_info)));
+		memcpy_toio(tx_queue->piobuf, skb->data,
+			    ALIGN(skb->len, L1_CACHE_BYTES));
+	}
+
+	EFX_POPULATE_QWORD_5(buffer->option,
+			     ESF_DZ_TX_DESC_IS_OPT, 1,
+			     ESF_DZ_TX_OPTION_TYPE, ESE_DZ_TX_OPTION_DESC_PIO,
+			     ESF_DZ_TX_PIO_CONT, 0,
+			     ESF_DZ_TX_PIO_BYTE_CNT, skb->len,
+			     ESF_DZ_TX_PIO_BUF_ADDR,
+			     tx_queue->piobuf_offset);
+	++tx_queue->pio_packets;
+	++tx_queue->insert_count;
+	return buffer;
+}
+#endif /* EFX_USE_PIO */
+
 /*
  * Add a socket buffer to a TX queue
  *
@@ -227,6 +366,17 @@ netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
 			return NETDEV_TX_OK;
 	}
 
+	/* Consider using PIO for short packets */
+#ifdef EFX_USE_PIO
+	if (skb->len <= efx_piobuf_size && tx_queue->piobuf &&
+	    efx_nic_tx_is_empty(tx_queue) &&
+	    efx_nic_tx_is_empty(efx_tx_queue_partner(tx_queue))) {
+		buffer = efx_enqueue_skb_pio(tx_queue, skb);
+		dma_flags = EFX_TX_BUF_OPTION;
+		goto finish_packet;
+	}
+#endif
+
 	/* Map for DMA.  Use dma_map_single rather than dma_map_page
 	 * since this is more efficient on machines with sparse
 	 * memory.
@@ -279,6 +429,7 @@ netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
 	}
 
 	/* Transfer ownership of the skb to the final buffer */
+finish_packet:
 	buffer->skb = skb;
 	buffer->flags = EFX_TX_BUF_SKB | dma_flags;
 
-- 
cgit 


From c47b2d9d56832e7ff1a20bd598623de42701a3a3 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Tue, 3 Sep 2013 17:22:23 +0100
Subject: sfc: Support ARFS for IPv6 flows

Extend efx_filter_rfs() to map TCP/IPv6 and UDP/IPv6 flows into
efx_filter_spec.  These are only supported on EF10; on Falcon and
Siena they will be rejected by efx_farch_filter_from_gen_spec().

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
 drivers/net/ethernet/sfc/rx.c | 90 +++++++++++++++++++++++++++++--------------
 1 file changed, 62 insertions(+), 28 deletions(-)

diff --git a/drivers/net/ethernet/sfc/rx.c b/drivers/net/ethernet/sfc/rx.c
index 4a596725023f..8f09e686fc23 100644
--- a/drivers/net/ethernet/sfc/rx.c
+++ b/drivers/net/ethernet/sfc/rx.c
@@ -12,6 +12,7 @@
 #include <linux/in.h>
 #include <linux/slab.h>
 #include <linux/ip.h>
+#include <linux/ipv6.h>
 #include <linux/tcp.h>
 #include <linux/udp.h>
 #include <linux/prefetch.h>
@@ -818,44 +819,70 @@ int efx_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
 	struct efx_nic *efx = netdev_priv(net_dev);
 	struct efx_channel *channel;
 	struct efx_filter_spec spec;
-	const struct iphdr *ip;
 	const __be16 *ports;
+	__be16 ether_type;
 	int nhoff;
 	int rc;
 
-	nhoff = skb_network_offset(skb);
+	/* The core RPS/RFS code has already parsed and validated
+	 * VLAN, IP and transport headers.  We assume they are in the
+	 * header area.
+	 */
 
 	if (skb->protocol == htons(ETH_P_8021Q)) {
-		EFX_BUG_ON_PARANOID(skb_headlen(skb) <
-				    nhoff + sizeof(struct vlan_hdr));
-		if (((const struct vlan_hdr *)skb->data + nhoff)->
-		    h_vlan_encapsulated_proto != htons(ETH_P_IP))
-			return -EPROTONOSUPPORT;
+		const struct vlan_hdr *vh =
+			(const struct vlan_hdr *)skb->data;
 
-		/* This is IP over 802.1q VLAN.  We can't filter on the
-		 * IP 5-tuple and the vlan together, so just strip the
-		 * vlan header and filter on the IP part.
+		/* We can't filter on the IP 5-tuple and the vlan
+		 * together, so just strip the vlan header and filter
+		 * on the IP part.
 		 */
-		nhoff += sizeof(struct vlan_hdr);
-	} else if (skb->protocol != htons(ETH_P_IP)) {
-		return -EPROTONOSUPPORT;
+		EFX_BUG_ON_PARANOID(skb_headlen(skb) < sizeof(*vh));
+		ether_type = vh->h_vlan_encapsulated_proto;
+		nhoff = sizeof(struct vlan_hdr);
+	} else {
+		ether_type = skb->protocol;
+		nhoff = 0;
 	}
 
-	/* RFS must validate the IP header length before calling us */
-	EFX_BUG_ON_PARANOID(skb_headlen(skb) < nhoff + sizeof(*ip));
-	ip = (const struct iphdr *)(skb->data + nhoff);
-	if (ip_is_fragment(ip))
+	if (ether_type != htons(ETH_P_IP) && ether_type != htons(ETH_P_IPV6))
 		return -EPROTONOSUPPORT;
-	EFX_BUG_ON_PARANOID(skb_headlen(skb) < nhoff + 4 * ip->ihl + 4);
-	ports = (const __be16 *)(skb->data + nhoff + 4 * ip->ihl);
 
 	efx_filter_init_rx(&spec, EFX_FILTER_PRI_HINT,
 			   efx->rx_scatter ? EFX_FILTER_FLAG_RX_SCATTER : 0,
 			   rxq_index);
-	rc = efx_filter_set_ipv4_full(&spec, ip->protocol,
-				      ip->daddr, ports[1], ip->saddr, ports[0]);
-	if (rc)
-		return rc;
+	spec.match_flags =
+		EFX_FILTER_MATCH_ETHER_TYPE | EFX_FILTER_MATCH_IP_PROTO |
+		EFX_FILTER_MATCH_LOC_HOST | EFX_FILTER_MATCH_LOC_PORT |
+		EFX_FILTER_MATCH_REM_HOST | EFX_FILTER_MATCH_REM_PORT;
+	spec.ether_type = ether_type;
+
+	if (ether_type == htons(ETH_P_IP)) {
+		const struct iphdr *ip =
+			(const struct iphdr *)(skb->data + nhoff);
+
+		EFX_BUG_ON_PARANOID(skb_headlen(skb) < nhoff + sizeof(*ip));
+		if (ip_is_fragment(ip))
+			return -EPROTONOSUPPORT;
+		spec.ip_proto = ip->protocol;
+		spec.rem_host[0] = ip->saddr;
+		spec.loc_host[0] = ip->daddr;
+		EFX_BUG_ON_PARANOID(skb_headlen(skb) < nhoff + 4 * ip->ihl + 4);
+		ports = (const __be16 *)(skb->data + nhoff + 4 * ip->ihl);
+	} else {
+		const struct ipv6hdr *ip6 =
+			(const struct ipv6hdr *)(skb->data + nhoff);
+
+		EFX_BUG_ON_PARANOID(skb_headlen(skb) <
+				    nhoff + sizeof(*ip6) + 4);
+		spec.ip_proto = ip6->nexthdr;
+		memcpy(spec.rem_host, &ip6->saddr, sizeof(ip6->saddr));
+		memcpy(spec.loc_host, &ip6->daddr, sizeof(ip6->daddr));
+		ports = (const __be16 *)(ip6 + 1);
+	}
+
+	spec.rem_port = ports[0];
+	spec.loc_port = ports[1];
 
 	rc = efx->type->filter_rfs_insert(efx, &spec);
 	if (rc < 0)
@@ -866,11 +893,18 @@ int efx_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
 	channel = efx_get_channel(efx, skb_get_rx_queue(skb));
 	++channel->rfs_filters_added;
 
-	netif_info(efx, rx_status, efx->net_dev,
-		   "steering %s %pI4:%u:%pI4:%u to queue %u [flow %u filter %d]\n",
-		   (ip->protocol == IPPROTO_TCP) ? "TCP" : "UDP",
-		   &ip->saddr, ntohs(ports[0]), &ip->daddr, ntohs(ports[1]),
-		   rxq_index, flow_id, rc);
+	if (ether_type == htons(ETH_P_IP))
+		netif_info(efx, rx_status, efx->net_dev,
+			   "steering %s %pI4:%u:%pI4:%u to queue %u [flow %u filter %d]\n",
+			   (spec.ip_proto == IPPROTO_TCP) ? "TCP" : "UDP",
+			   spec.rem_host, ntohs(ports[0]), spec.loc_host,
+			   ntohs(ports[1]), rxq_index, flow_id, rc);
+	else
+		netif_info(efx, rx_status, efx->net_dev,
+			   "steering %s [%pI6]:%u:[%pI6]:%u to queue %u [flow %u filter %d]\n",
+			   (spec.ip_proto == IPPROTO_TCP) ? "TCP" : "UDP",
+			   spec.rem_host, ntohs(ports[0]), spec.loc_host,
+			   ntohs(ports[1]), rxq_index, flow_id, rc);
 
 	return rc;
 }
-- 
cgit 


From d9cadcc92a476b8dd5c301ebdea36a6459706465 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Wed, 11 Sep 2013 14:03:27 +0100
Subject: gpio: arizona: Add wm8997 support to probe

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-arizona.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpio/gpio-arizona.c b/drivers/gpio/gpio-arizona.c
index fa8b6a762761..a2bec3c6db94 100644
--- a/drivers/gpio/gpio-arizona.c
+++ b/drivers/gpio/gpio-arizona.c
@@ -113,6 +113,7 @@ static int arizona_gpio_probe(struct platform_device *pdev)
 	switch (arizona->type) {
 	case WM5102:
 	case WM5110:
+	case WM8997:
 		arizona_gpio->gpio_chip.ngpio = 5;
 		break;
 	default:
-- 
cgit 


From 37c67c6e2bb5b8f287d92e543acb0f8fa41af0e9 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 12 Sep 2013 09:05:10 +0200
Subject: net: emaclite: Not necessary to call devm_iounmap

devm_iounmap is called automatically.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/xilinx/xilinx_emaclite.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index 4c619ea5189f..de3909878f42 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -1075,14 +1075,9 @@ static int xemaclite_send(struct sk_buff *orig_skb, struct net_device *dev)
  * This function un maps the IO region of the Emaclite device and frees the net
  * device.
  */
-static void xemaclite_remove_ndev(struct net_device *ndev,
-				  struct platform_device *pdev)
+static void xemaclite_remove_ndev(struct net_device *ndev)
 {
 	if (ndev) {
-		struct net_local *lp = netdev_priv(ndev);
-
-		if (lp->base_addr)
-			devm_iounmap(&pdev->dev, lp->base_addr);
 		free_netdev(ndev);
 	}
 }
@@ -1214,7 +1209,7 @@ static int xemaclite_of_probe(struct platform_device *ofdev)
 	return 0;
 
 error:
-	xemaclite_remove_ndev(ndev, ofdev);
+	xemaclite_remove_ndev(ndev);
 	return rc;
 }
 
@@ -1248,7 +1243,7 @@ static int xemaclite_of_remove(struct platform_device *of_dev)
 		of_node_put(lp->phy_node);
 	lp->phy_node = NULL;
 
-	xemaclite_remove_ndev(ndev, of_dev);
+	xemaclite_remove_ndev(ndev);
 
 	return 0;
 }
-- 
cgit 


From cd738c4edeb30507789bcd69ca25c4c569c60971 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 12 Sep 2013 09:05:11 +0200
Subject: net: emaclite: Code cleanup

No function changes (s/\ \t/\t/g)

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/xilinx/xilinx_emaclite.c | 28 +++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index de3909878f42..80dd40417850 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -31,7 +31,7 @@
 #define DRIVER_NAME "xilinx_emaclite"
 
 /* Register offsets for the EmacLite Core */
-#define XEL_TXBUFF_OFFSET 	0x0		/* Transmit Buffer */
+#define XEL_TXBUFF_OFFSET	0x0		/* Transmit Buffer */
 #define XEL_MDIOADDR_OFFSET	0x07E4		/* MDIO Address Register */
 #define XEL_MDIOWR_OFFSET	0x07E8		/* MDIO Write Data Register */
 #define XEL_MDIORD_OFFSET	0x07EC		/* MDIO Read Data Register */
@@ -63,13 +63,13 @@
 #define XEL_MDIOCTRL_MDIOEN_MASK  0x00000008	/* MDIO Enable */
 
 /* Global Interrupt Enable Register (GIER) Bit Masks */
-#define XEL_GIER_GIE_MASK	0x80000000 	/* Global Enable */
+#define XEL_GIER_GIE_MASK	0x80000000	/* Global Enable */
 
 /* Transmit Status Register (TSR) Bit Masks */
-#define XEL_TSR_XMIT_BUSY_MASK	 0x00000001 	/* Tx complete */
-#define XEL_TSR_PROGRAM_MASK	 0x00000002 	/* Program the MAC address */
-#define XEL_TSR_XMIT_IE_MASK	 0x00000008 	/* Tx interrupt enable bit */
-#define XEL_TSR_XMIT_ACTIVE_MASK 0x80000000 	/* Buffer is active, SW bit
+#define XEL_TSR_XMIT_BUSY_MASK	 0x00000001	/* Tx complete */
+#define XEL_TSR_PROGRAM_MASK	 0x00000002	/* Program the MAC address */
+#define XEL_TSR_XMIT_IE_MASK	 0x00000008	/* Tx interrupt enable bit */
+#define XEL_TSR_XMIT_ACTIVE_MASK 0x80000000	/* Buffer is active, SW bit
 						 * only. This is not documented
 						 * in the HW spec */
 
@@ -77,21 +77,21 @@
 #define XEL_TSR_PROG_MAC_ADDR	(XEL_TSR_XMIT_BUSY_MASK | XEL_TSR_PROGRAM_MASK)
 
 /* Receive Status Register (RSR) */
-#define XEL_RSR_RECV_DONE_MASK	0x00000001 	/* Rx complete */
-#define XEL_RSR_RECV_IE_MASK	0x00000008 	/* Rx interrupt enable bit */
+#define XEL_RSR_RECV_DONE_MASK	0x00000001	/* Rx complete */
+#define XEL_RSR_RECV_IE_MASK	0x00000008	/* Rx interrupt enable bit */
 
 /* Transmit Packet Length Register (TPLR) */
-#define XEL_TPLR_LENGTH_MASK	0x0000FFFF 	/* Tx packet length */
+#define XEL_TPLR_LENGTH_MASK	0x0000FFFF	/* Tx packet length */
 
 /* Receive Packet Length Register (RPLR) */
-#define XEL_RPLR_LENGTH_MASK	0x0000FFFF 	/* Rx packet length */
+#define XEL_RPLR_LENGTH_MASK	0x0000FFFF	/* Rx packet length */
 
-#define XEL_HEADER_OFFSET	12 		/* Offset to length field */
-#define XEL_HEADER_SHIFT	16 		/* Shift value for length */
+#define XEL_HEADER_OFFSET	12		/* Offset to length field */
+#define XEL_HEADER_SHIFT	16		/* Shift value for length */
 
 /* General Ethernet Definitions */
-#define XEL_ARP_PACKET_SIZE		28 	/* Max ARP packet size */
-#define XEL_HEADER_IP_LENGTH_OFFSET	16 	/* IP Length Offset */
+#define XEL_ARP_PACKET_SIZE		28	/* Max ARP packet size */
+#define XEL_HEADER_IP_LENGTH_OFFSET	16	/* IP Length Offset */
 
 
 
-- 
cgit 


From 8e61777d365804403e49539f6ee2af790b789baf Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 18 Sep 2013 09:00:00 +0530
Subject: net: bnx2x: Staticize local symbols

Local symbols used only in this file are made static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Eilon Greenstein <eilong@broadcom.com>
Cc: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index 2604b6204abe..7991f10e1a98 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -2802,7 +2802,7 @@ struct set_vf_state_cookie {
 	u8 state;
 };
 
-void bnx2x_set_vf_state(void *cookie)
+static void bnx2x_set_vf_state(void *cookie)
 {
 	struct set_vf_state_cookie *p = (struct set_vf_state_cookie *)cookie;
 
@@ -3222,8 +3222,9 @@ void bnx2x_disable_sriov(struct bnx2x *bp)
 	pci_disable_sriov(bp->pdev);
 }
 
-int bnx2x_vf_ndo_prep(struct bnx2x *bp, int vfidx, struct bnx2x_virtf **vf,
-			struct pf_vf_bulletin_content **bulletin)
+static int bnx2x_vf_ndo_prep(struct bnx2x *bp, int vfidx,
+			     struct bnx2x_virtf **vf,
+			     struct pf_vf_bulletin_content **bulletin)
 {
 	if (bp->state != BNX2X_STATE_OPEN) {
 		BNX2X_ERR("vf ndo called though PF is down\n");
-- 
cgit 


From 8a67d1c6701be0ae3bb1f41b7104b732862c4483 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 18 Sep 2013 09:00:01 +0530
Subject: net: cxgb4vf: Staticize local symbols

Local symbols used only in this file are made static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Casey Leedom <leedom@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/chelsio/cxgb4vf/sge.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/sge.c b/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
index df296af20bd5..8475c4cda9e4 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
@@ -1396,8 +1396,9 @@ static inline void copy_frags(struct sk_buff *skb,
  *	Builds an sk_buff from the given packet gather list.  Returns the
  *	sk_buff or %NULL if sk_buff allocation failed.
  */
-struct sk_buff *t4vf_pktgl_to_skb(const struct pkt_gl *gl,
-				  unsigned int skb_len, unsigned int pull_len)
+static struct sk_buff *t4vf_pktgl_to_skb(const struct pkt_gl *gl,
+					 unsigned int skb_len,
+					 unsigned int pull_len)
 {
 	struct sk_buff *skb;
 
@@ -1443,7 +1444,7 @@ out:
  *	Releases the pages of a packet gather list.  We do not own the last
  *	page on the list and do not free it.
  */
-void t4vf_pktgl_free(const struct pkt_gl *gl)
+static void t4vf_pktgl_free(const struct pkt_gl *gl)
 {
 	int frag;
 
@@ -1640,7 +1641,7 @@ static inline void rspq_next(struct sge_rspq *rspq)
  *	on this queue.  If the system is under memory shortage use a fairly
  *	long delay to help recovery.
  */
-int process_responses(struct sge_rspq *rspq, int budget)
+static int process_responses(struct sge_rspq *rspq, int budget)
 {
 	struct sge_eth_rxq *rxq = container_of(rspq, struct sge_eth_rxq, rspq);
 	int budget_left = budget;
@@ -1893,7 +1894,7 @@ static unsigned int process_intrq(struct adapter *adapter)
  * The MSI interrupt handler handles data events from SGE response queues as
  * well as error and other async events as they all use the same MSI vector.
  */
-irqreturn_t t4vf_intr_msi(int irq, void *cookie)
+static irqreturn_t t4vf_intr_msi(int irq, void *cookie)
 {
 	struct adapter *adapter = cookie;
 
-- 
cgit 


From 052c19e60d3c4dcded53f2c591efb5de84efd68c Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 19 Sep 2013 12:15:26 +0530
Subject: net: cdc-phonet: Staticize usbpn_probe
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

'usbpn_probe' is referenced only in this file. Make it static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Rémi Denis-Courmont <remi@remlab.net>
Cc: Rémi Denis-Courmont <remi@remlab.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc-phonet.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/usb/cdc-phonet.c b/drivers/net/usb/cdc-phonet.c
index 7d78669000d7..6358d420e185 100644
--- a/drivers/net/usb/cdc-phonet.c
+++ b/drivers/net/usb/cdc-phonet.c
@@ -328,7 +328,7 @@ MODULE_DEVICE_TABLE(usb, usbpn_ids);
 
 static struct usb_driver usbpn_driver;
 
-int usbpn_probe(struct usb_interface *intf, const struct usb_device_id *id)
+static int usbpn_probe(struct usb_interface *intf, const struct usb_device_id *id)
 {
 	static const char ifname[] = "usbpn%d";
 	const struct usb_cdc_union_desc *union_header = NULL;
-- 
cgit 


From 118a7b0ede580f3c5553028301001d46f8eede99 Mon Sep 17 00:00:00 2001
From: Avinash Kumar <avi.kp.137@gmail.com>
Date: Thu, 19 Sep 2013 21:36:50 +0530
Subject: net: ethernet: eth.c: removed checkpatch warnings and errors

removed these checkpatch.pl warnings:
net/ethernet/eth.c:61: WARNING: Use #include <linux/uaccess.h> instead of <asm/uaccess.h>
net/ethernet/eth.c:136: WARNING: Prefer netdev_dbg(netdev, ... then dev_dbg(dev, ... then pr_debug(...  to printk(KERN_DEBUG ...
net/ethernet/eth.c:181: ERROR: space prohibited before that close parenthesis ')'

Signed-off-by: Avinash Kumar <avi.kp.137@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ethernet/eth.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c
index be1f64d35358..9bd3c31c30e5 100644
--- a/net/ethernet/eth.c
+++ b/net/ethernet/eth.c
@@ -58,7 +58,7 @@
 #include <net/ipv6.h>
 #include <net/ip.h>
 #include <net/dsa.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 __setup("ether=", netdev_boot_setup);
 
@@ -133,7 +133,7 @@ int eth_rebuild_header(struct sk_buff *skb)
 		return arp_find(eth->h_dest, skb);
 #endif
 	default:
-		printk(KERN_DEBUG
+		netdev_dbg(dev,
 		       "%s: unable to resolve type %X addresses.\n",
 		       dev->name, ntohs(eth->h_proto));
 
@@ -178,7 +178,7 @@ __be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev)
 	 *      seems to set IFF_PROMISC.
 	 */
 
-	else if (1 /*dev->flags&IFF_PROMISC */ ) {
+	else if (1 /*dev->flags&IFF_PROMISC */) {
 		if (unlikely(!ether_addr_equal_64bits(eth->h_dest,
 						      dev->dev_addr)))
 			skb->pkt_type = PACKET_OTHERHOST;
-- 
cgit 


From 3e1e3aae1f5d4e8e5edb7e332f6e265597cc5b0a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 19 Sep 2013 09:10:03 -0700
Subject: net_sched: add u64 rate to psched_ratecfg_precompute()

Add an extra u64 rate parameter to psched_ratecfg_precompute()
so that some qdisc can opt-in for 64bit rates in the future,
to overcome the ~34 Gbits limit.

psched_ratecfg_getrate() reports a legacy structure to
tc utility, so if actual rate is above the 32bit rate field,
cap it to the 34Gbit limit.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/sch_generic.h | 11 +++++++++--
 net/sched/act_police.c    |  4 ++--
 net/sched/sch_generic.c   |  5 +++--
 net/sched/sch_htb.c       |  4 ++--
 net/sched/sch_tbf.c       |  4 ++--
 5 files changed, 18 insertions(+), 10 deletions(-)

diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index f4eb365f7dcd..d0a6321c302e 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -702,13 +702,20 @@ static inline u64 psched_l2t_ns(const struct psched_ratecfg *r,
 }
 
 void psched_ratecfg_precompute(struct psched_ratecfg *r,
-			       const struct tc_ratespec *conf);
+			       const struct tc_ratespec *conf,
+			       u64 rate64);
 
 static inline void psched_ratecfg_getrate(struct tc_ratespec *res,
 					  const struct psched_ratecfg *r)
 {
 	memset(res, 0, sizeof(*res));
-	res->rate = r->rate_bytes_ps;
+
+	/* legacy struct tc_ratespec has a 32bit @rate field
+	 * Qdisc using 64bit rate should add new attributes
+	 * in order to maintain compatibility.
+	 */
+	res->rate = min_t(u64, r->rate_bytes_ps, ~0U);
+
 	res->overhead = r->overhead;
 	res->linklayer = (r->linklayer & TC_LINKLAYER_MASK);
 }
diff --git a/net/sched/act_police.c b/net/sched/act_police.c
index 189e3c5b3d09..272d8e924cf6 100644
--- a/net/sched/act_police.c
+++ b/net/sched/act_police.c
@@ -231,14 +231,14 @@ override:
 	}
 	if (R_tab) {
 		police->rate_present = true;
-		psched_ratecfg_precompute(&police->rate, &R_tab->rate);
+		psched_ratecfg_precompute(&police->rate, &R_tab->rate, 0);
 		qdisc_put_rtab(R_tab);
 	} else {
 		police->rate_present = false;
 	}
 	if (P_tab) {
 		police->peak_present = true;
-		psched_ratecfg_precompute(&police->peak, &P_tab->rate);
+		psched_ratecfg_precompute(&police->peak, &P_tab->rate, 0);
 		qdisc_put_rtab(P_tab);
 	} else {
 		police->peak_present = false;
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index a74e278654aa..e7121d29c4bd 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -910,11 +910,12 @@ void dev_shutdown(struct net_device *dev)
 }
 
 void psched_ratecfg_precompute(struct psched_ratecfg *r,
-			       const struct tc_ratespec *conf)
+			       const struct tc_ratespec *conf,
+			       u64 rate64)
 {
 	memset(r, 0, sizeof(*r));
 	r->overhead = conf->overhead;
-	r->rate_bytes_ps = conf->rate;
+	r->rate_bytes_ps = max_t(u64, conf->rate, rate64);
 	r->linklayer = (conf->linklayer & TC_LINKLAYER_MASK);
 	r->mult = 1;
 	/*
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 863846cc5513..6b126f6c9957 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -1491,8 +1491,8 @@ static int htb_change_class(struct Qdisc *sch, u32 classid,
 			cl->prio = TC_HTB_NUMPRIO - 1;
 	}
 
-	psched_ratecfg_precompute(&cl->rate, &hopt->rate);
-	psched_ratecfg_precompute(&cl->ceil, &hopt->ceil);
+	psched_ratecfg_precompute(&cl->rate, &hopt->rate, 0);
+	psched_ratecfg_precompute(&cl->ceil, &hopt->ceil, 0);
 
 	cl->buffer = PSCHED_TICKS2NS(hopt->buffer);
 	cl->cbuffer = PSCHED_TICKS2NS(hopt->cbuffer);
diff --git a/net/sched/sch_tbf.c b/net/sched/sch_tbf.c
index 1aaf1b6e51a2..b0571224f3c9 100644
--- a/net/sched/sch_tbf.c
+++ b/net/sched/sch_tbf.c
@@ -341,9 +341,9 @@ static int tbf_change(struct Qdisc *sch, struct nlattr *opt)
 	q->tokens = q->buffer;
 	q->ptokens = q->mtu;
 
-	psched_ratecfg_precompute(&q->rate, &rtab->rate);
+	psched_ratecfg_precompute(&q->rate, &rtab->rate, 0);
 	if (ptab) {
-		psched_ratecfg_precompute(&q->peak, &ptab->rate);
+		psched_ratecfg_precompute(&q->peak, &ptab->rate, 0);
 		q->peak_present = true;
 	} else {
 		q->peak_present = false;
-- 
cgit 


From df62cdf348c91baac61b4cb19d19ea1ef87b271e Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 19 Sep 2013 09:10:20 -0700
Subject: net_sched: htb: support of 64bit rates

HTB already can deal with 64bit rates, we only have to add two new
attributes so that tc can use them to break the current 32bit ABI
barrier.

TCA_HTB_RATE64 : class rate  (in bytes per second)
TCA_HTB_CEIL64 : class ceil  (in bytes per second)

This allows us to setup HTB on 40Gbps links, as 32bit limit is
actually ~34Gbps

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/uapi/linux/pkt_sched.h |  2 ++
 net/sched/sch_htb.c            | 17 +++++++++++++++--
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/include/uapi/linux/pkt_sched.h b/include/uapi/linux/pkt_sched.h
index 9b829134d422..f2624b549e61 100644
--- a/include/uapi/linux/pkt_sched.h
+++ b/include/uapi/linux/pkt_sched.h
@@ -357,6 +357,8 @@ enum {
 	TCA_HTB_CTAB,
 	TCA_HTB_RTAB,
 	TCA_HTB_DIRECT_QLEN,
+	TCA_HTB_RATE64,
+	TCA_HTB_CEIL64,
 	__TCA_HTB_MAX,
 };
 
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 6b126f6c9957..0e1e38b40025 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -997,6 +997,8 @@ static const struct nla_policy htb_policy[TCA_HTB_MAX + 1] = {
 	[TCA_HTB_CTAB]	= { .type = NLA_BINARY, .len = TC_RTAB_SIZE },
 	[TCA_HTB_RTAB]	= { .type = NLA_BINARY, .len = TC_RTAB_SIZE },
 	[TCA_HTB_DIRECT_QLEN] = { .type = NLA_U32 },
+	[TCA_HTB_RATE64] = { .type = NLA_U64 },
+	[TCA_HTB_CEIL64] = { .type = NLA_U64 },
 };
 
 static void htb_work_func(struct work_struct *work)
@@ -1114,6 +1116,12 @@ static int htb_dump_class(struct Qdisc *sch, unsigned long arg,
 	opt.level = cl->level;
 	if (nla_put(skb, TCA_HTB_PARMS, sizeof(opt), &opt))
 		goto nla_put_failure;
+	if ((cl->rate.rate_bytes_ps >= (1ULL << 32)) &&
+	    nla_put_u64(skb, TCA_HTB_RATE64, cl->rate.rate_bytes_ps))
+		goto nla_put_failure;
+	if ((cl->ceil.rate_bytes_ps >= (1ULL << 32)) &&
+	    nla_put_u64(skb, TCA_HTB_CEIL64, cl->ceil.rate_bytes_ps))
+		goto nla_put_failure;
 
 	nla_nest_end(skb, nest);
 	spin_unlock_bh(root_lock);
@@ -1332,6 +1340,7 @@ static int htb_change_class(struct Qdisc *sch, u32 classid,
 	struct qdisc_rate_table *rtab = NULL, *ctab = NULL;
 	struct nlattr *tb[TCA_HTB_MAX + 1];
 	struct tc_htb_opt *hopt;
+	u64 rate64, ceil64;
 
 	/* extract all subattrs from opt attr */
 	if (!opt)
@@ -1491,8 +1500,12 @@ static int htb_change_class(struct Qdisc *sch, u32 classid,
 			cl->prio = TC_HTB_NUMPRIO - 1;
 	}
 
-	psched_ratecfg_precompute(&cl->rate, &hopt->rate, 0);
-	psched_ratecfg_precompute(&cl->ceil, &hopt->ceil, 0);
+	rate64 = tb[TCA_HTB_RATE64] ? nla_get_u64(tb[TCA_HTB_RATE64]) : 0;
+
+	ceil64 = tb[TCA_HTB_CEIL64] ? nla_get_u64(tb[TCA_HTB_CEIL64]) : 0;
+
+	psched_ratecfg_precompute(&cl->rate, &hopt->rate, rate64);
+	psched_ratecfg_precompute(&cl->ceil, &hopt->ceil, ceil64);
 
 	cl->buffer = PSCHED_TICKS2NS(hopt->buffer);
 	cl->cbuffer = PSCHED_TICKS2NS(hopt->cbuffer);
-- 
cgit 


From 1a5465f5d6a23e84ef5c06cb32f3d8c26632f42a Mon Sep 17 00:00:00 2001
From: Patrice Vilchez <patrice.vilchez@atmel.com>
Date: Thu, 19 Sep 2013 19:40:48 +0200
Subject: phy/micrel: Add suspend/resume support to Micrel PHYs

All supported Micrel PHYs implement the standard "power down" bit 11 of BMCR,
so this patch adds support using the generic genphy_{suspend,resume} functions.

Signed-off-by: Patrice Vilchez <patrice.vilchez@atmel.com>
[b.brezillon@overkiz.com: adapt to newer kernel and generalize to other phys]
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
[nicolas.ferre@atmel.com: commit message modification]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: David J. Choi <david.choi@micrel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/phy/micrel.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index c31aad0004cb..3ae28f420868 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -287,6 +287,8 @@ static struct phy_driver ksphy_driver[] = {
 	.read_status	= genphy_read_status,
 	.ack_interrupt	= kszphy_ack_interrupt,
 	.config_intr	= ks8737_config_intr,
+	.suspend	= genphy_suspend,
+	.resume		= genphy_resume,
 	.driver		= { .owner = THIS_MODULE,},
 }, {
 	.phy_id		= PHY_ID_KSZ8021,
@@ -300,6 +302,8 @@ static struct phy_driver ksphy_driver[] = {
 	.read_status	= genphy_read_status,
 	.ack_interrupt	= kszphy_ack_interrupt,
 	.config_intr	= kszphy_config_intr,
+	.suspend	= genphy_suspend,
+	.resume		= genphy_resume,
 	.driver		= { .owner = THIS_MODULE,},
 }, {
 	.phy_id		= PHY_ID_KSZ8031,
@@ -313,6 +317,8 @@ static struct phy_driver ksphy_driver[] = {
 	.read_status	= genphy_read_status,
 	.ack_interrupt	= kszphy_ack_interrupt,
 	.config_intr	= kszphy_config_intr,
+	.suspend	= genphy_suspend,
+	.resume		= genphy_resume,
 	.driver		= { .owner = THIS_MODULE,},
 }, {
 	.phy_id		= PHY_ID_KSZ8041,
@@ -326,6 +332,8 @@ static struct phy_driver ksphy_driver[] = {
 	.read_status	= genphy_read_status,
 	.ack_interrupt	= kszphy_ack_interrupt,
 	.config_intr	= kszphy_config_intr,
+	.suspend	= genphy_suspend,
+	.resume		= genphy_resume,
 	.driver		= { .owner = THIS_MODULE,},
 }, {
 	.phy_id		= PHY_ID_KSZ8051,
@@ -339,6 +347,8 @@ static struct phy_driver ksphy_driver[] = {
 	.read_status	= genphy_read_status,
 	.ack_interrupt	= kszphy_ack_interrupt,
 	.config_intr	= kszphy_config_intr,
+	.suspend	= genphy_suspend,
+	.resume		= genphy_resume,
 	.driver		= { .owner = THIS_MODULE,},
 }, {
 	.phy_id		= PHY_ID_KSZ8001,
@@ -351,6 +361,8 @@ static struct phy_driver ksphy_driver[] = {
 	.read_status	= genphy_read_status,
 	.ack_interrupt	= kszphy_ack_interrupt,
 	.config_intr	= kszphy_config_intr,
+	.suspend	= genphy_suspend,
+	.resume		= genphy_resume,
 	.driver		= { .owner = THIS_MODULE,},
 }, {
 	.phy_id		= PHY_ID_KSZ8081,
@@ -363,6 +375,8 @@ static struct phy_driver ksphy_driver[] = {
 	.read_status	= genphy_read_status,
 	.ack_interrupt	= kszphy_ack_interrupt,
 	.config_intr	= kszphy_config_intr,
+	.suspend	= genphy_suspend,
+	.resume		= genphy_resume,
 	.driver		= { .owner = THIS_MODULE,},
 }, {
 	.phy_id		= PHY_ID_KSZ8061,
@@ -375,6 +389,8 @@ static struct phy_driver ksphy_driver[] = {
 	.read_status	= genphy_read_status,
 	.ack_interrupt	= kszphy_ack_interrupt,
 	.config_intr	= kszphy_config_intr,
+	.suspend	= genphy_suspend,
+	.resume		= genphy_resume,
 	.driver		= { .owner = THIS_MODULE,},
 }, {
 	.phy_id		= PHY_ID_KSZ9021,
@@ -387,6 +403,8 @@ static struct phy_driver ksphy_driver[] = {
 	.read_status	= genphy_read_status,
 	.ack_interrupt	= kszphy_ack_interrupt,
 	.config_intr	= ksz9021_config_intr,
+	.suspend	= genphy_suspend,
+	.resume		= genphy_resume,
 	.driver		= { .owner = THIS_MODULE, },
 }, {
 	.phy_id		= PHY_ID_KSZ9031,
@@ -400,6 +418,8 @@ static struct phy_driver ksphy_driver[] = {
 	.read_status	= genphy_read_status,
 	.ack_interrupt	= kszphy_ack_interrupt,
 	.config_intr	= ksz9021_config_intr,
+	.suspend	= genphy_suspend,
+	.resume		= genphy_resume,
 	.driver		= { .owner = THIS_MODULE, },
 }, {
 	.phy_id		= PHY_ID_KSZ8873MLL,
@@ -410,6 +430,8 @@ static struct phy_driver ksphy_driver[] = {
 	.config_init	= kszphy_config_init,
 	.config_aneg	= ksz8873mll_config_aneg,
 	.read_status	= ksz8873mll_read_status,
+	.suspend	= genphy_suspend,
+	.resume		= genphy_resume,
 	.driver		= { .owner = THIS_MODULE, },
 }, {
 	.phy_id		= PHY_ID_KSZ886X,
@@ -420,6 +442,8 @@ static struct phy_driver ksphy_driver[] = {
 	.config_init	= kszphy_config_init,
 	.config_aneg	= genphy_config_aneg,
 	.read_status	= genphy_read_status,
+	.suspend	= genphy_suspend,
+	.resume		= genphy_resume,
 	.driver		= { .owner = THIS_MODULE, },
 } };
 
-- 
cgit 


From 19717d05848849a3b1dddeced9abb5884cff9152 Mon Sep 17 00:00:00 2001
From: "Maciej W. Rozycki" <macro@linux-mips.org>
Date: Fri, 20 Sep 2013 00:49:44 +0100
Subject: declance: Remove `incompatible pointer type' warnings

Revert damage caused by 43d620c82985b19008d87a437b4cf83f356264f7:

.../declance.c: In function 'cp_to_buf':
.../declance.c:347: warning: assignment from incompatible pointer type
.../declance.c:348: warning: assignment from incompatible pointer type
.../declance.c: In function 'cp_from_buf':
.../declance.c:406: warning: assignment from incompatible pointer type
.../declance.c:407: warning: assignment from incompatible pointer type

Also add a `const' qualifier where applicable and adjust formatting.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/amd/declance.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/amd/declance.c b/drivers/net/ethernet/amd/declance.c
index 94edc9c6fbbf..cc35f6f4e703 100644
--- a/drivers/net/ethernet/amd/declance.c
+++ b/drivers/net/ethernet/amd/declance.c
@@ -344,8 +344,8 @@ static void cp_to_buf(const int type, void *to, const void *from, int len)
 		}
 
 		clen = len & 1;
-		rtp = tp;
-		rfp = fp;
+		rtp = (unsigned char *)tp;
+		rfp = (const unsigned char *)fp;
 		while (clen--) {
 			*rtp++ = *rfp++;
 		}
@@ -372,8 +372,8 @@ static void cp_to_buf(const int type, void *to, const void *from, int len)
 		 * do the rest, if any.
 		 */
 		clen = len & 15;
-		rtp = (unsigned char *) tp;
-		rfp = (unsigned char *) fp;
+		rtp = (unsigned char *)tp;
+		rfp = (const unsigned char *)fp;
 		while (clen--) {
 			*rtp++ = *rfp++;
 		}
@@ -403,8 +403,8 @@ static void cp_from_buf(const int type, void *to, const void *from, int len)
 
 		clen = len & 1;
 
-		rtp = tp;
-		rfp = fp;
+		rtp = (unsigned char *)tp;
+		rfp = (const unsigned char *)fp;
 
 		while (clen--) {
 			*rtp++ = *rfp++;
@@ -433,8 +433,8 @@ static void cp_from_buf(const int type, void *to, const void *from, int len)
 		 * do the rest, if any.
 		 */
 		clen = len & 15;
-		rtp = (unsigned char *) tp;
-		rfp = (unsigned char *) fp;
+		rtp = (unsigned char *)tp;
+		rfp = (const unsigned char *)fp;
 		while (clen--) {
 			*rtp++ = *rfp++;
 		}
-- 
cgit 


From 42877236160baaa785cfdcb281a653a012c82a2b Mon Sep 17 00:00:00 2001
From: Thomas Meyer <thomas@m3y3r.de>
Date: Thu, 19 Sep 2013 22:42:00 +0100
Subject: iio: at91_adc: Cocci spatch "noderef"

sizeof when applied to a pointer typed expression gives the size of the
pointer.
Found by coccinelle spatch "misc/noderef.cocci"

Signed-off-by: Thomas Meyer <thomas@m3y3r.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/at91_adc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index 6da5ebb25502..79c53b8e195c 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -279,7 +279,7 @@ static int at91_adc_trigger_init(struct iio_dev *idev)
 	int i, ret;
 
 	st->trig = devm_kzalloc(&idev->dev,
-				st->trigger_number * sizeof(st->trig),
+				st->trigger_number * sizeof(*st->trig),
 				GFP_KERNEL);
 
 	if (st->trig == NULL) {
-- 
cgit 


From 6316a4d34f6dd832cf9d84b654d0753f3000d3da Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:48:28 +0900
Subject: gpio: bt8xx: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-bt8xx.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/gpio/gpio-bt8xx.c b/drivers/gpio/gpio-bt8xx.c
index 8369e71ebe4f..9dfe36fd8baf 100644
--- a/drivers/gpio/gpio-bt8xx.c
+++ b/drivers/gpio/gpio-bt8xx.c
@@ -228,7 +228,6 @@ static int bt8xxgpio_probe(struct pci_dev *dev,
 err_release_mem:
 	release_mem_region(pci_resource_start(dev, 0),
 			   pci_resource_len(dev, 0));
-	pci_set_drvdata(dev, NULL);
 err_disable:
 	pci_disable_device(dev);
 err_freebg:
@@ -252,7 +251,6 @@ static void bt8xxgpio_remove(struct pci_dev *pdev)
 			   pci_resource_len(pdev, 0));
 	pci_disable_device(pdev);
 
-	pci_set_drvdata(pdev, NULL);
 	kfree(bg);
 }
 
-- 
cgit 


From e8d895a4bb26167292c8c14ecdf61d02502e9c03 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 20 Sep 2013 11:23:18 -0700
Subject: compat.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/compat.h | 48 +++++++++++++++++++++++++++---------------------
 1 file changed, 27 insertions(+), 21 deletions(-)

diff --git a/include/net/compat.h b/include/net/compat.h
index 6e9565324989..3b603b199c01 100644
--- a/include/net/compat.h
+++ b/include/net/compat.h
@@ -29,8 +29,8 @@ struct compat_cmsghdr {
 	compat_int_t	cmsg_type;
 };
 
-extern int compat_sock_get_timestamp(struct sock *, struct timeval __user *);
-extern int compat_sock_get_timestampns(struct sock *, struct timespec __user *);
+int compat_sock_get_timestamp(struct sock *, struct timeval __user *);
+int compat_sock_get_timestampns(struct sock *, struct timespec __user *);
 
 #else /* defined(CONFIG_COMPAT) */
 /*
@@ -40,24 +40,30 @@ extern int compat_sock_get_timestampns(struct sock *, struct timespec __user *);
 #define compat_mmsghdr	mmsghdr
 #endif /* defined(CONFIG_COMPAT) */
 
-extern int get_compat_msghdr(struct msghdr *, struct compat_msghdr __user *);
-extern int verify_compat_iovec(struct msghdr *, struct iovec *, struct sockaddr_storage *, int);
-extern asmlinkage long compat_sys_sendmsg(int,struct compat_msghdr __user *,unsigned int);
-extern asmlinkage long compat_sys_sendmmsg(int, struct compat_mmsghdr __user *,
-					   unsigned int, unsigned int);
-extern asmlinkage long compat_sys_recvmsg(int,struct compat_msghdr __user *,unsigned int);
-extern asmlinkage long compat_sys_recvmmsg(int, struct compat_mmsghdr __user *,
-					   unsigned int, unsigned int,
-					   struct compat_timespec __user *);
-extern asmlinkage long compat_sys_getsockopt(int, int, int, char __user *, int __user *);
-extern int put_cmsg_compat(struct msghdr*, int, int, int, void *);
-
-extern int cmsghdr_from_user_compat_to_kern(struct msghdr *, struct sock *, unsigned char *, int);
-
-extern int compat_mc_setsockopt(struct sock *, int, int, char __user *, unsigned int,
-	int (*)(struct sock *, int, int, char __user *, unsigned int));
-extern int compat_mc_getsockopt(struct sock *, int, int, char __user *,
-	int __user *, int (*)(struct sock *, int, int, char __user *,
-				int __user *));
+int get_compat_msghdr(struct msghdr *, struct compat_msghdr __user *);
+int verify_compat_iovec(struct msghdr *, struct iovec *,
+			struct sockaddr_storage *, int);
+asmlinkage long compat_sys_sendmsg(int, struct compat_msghdr __user *,
+				   unsigned int);
+asmlinkage long compat_sys_sendmmsg(int, struct compat_mmsghdr __user *,
+				    unsigned int, unsigned int);
+asmlinkage long compat_sys_recvmsg(int, struct compat_msghdr __user *,
+				   unsigned int);
+asmlinkage long compat_sys_recvmmsg(int, struct compat_mmsghdr __user *,
+				    unsigned int, unsigned int,
+				    struct compat_timespec __user *);
+asmlinkage long compat_sys_getsockopt(int, int, int, char __user *,
+				      int __user *);
+int put_cmsg_compat(struct msghdr*, int, int, int, void *);
+
+int cmsghdr_from_user_compat_to_kern(struct msghdr *, struct sock *,
+				     unsigned char *, int);
+
+int compat_mc_setsockopt(struct sock *, int, int, char __user *, unsigned int,
+			 int (*)(struct sock *, int, int, char __user *,
+				 unsigned int));
+int compat_mc_getsockopt(struct sock *, int, int, char __user *, int __user *,
+			 int (*)(struct sock *, int, int, char __user *,
+				 int __user *));
 
 #endif /* NET_COMPAT_H */
-- 
cgit 


From 126c623b3980e7c2dd68777171f5b6b6ab352912 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 20 Sep 2013 11:23:19 -0700
Subject: dcbevent.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/dcbevent.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/net/dcbevent.h b/include/net/dcbevent.h
index 443626ed4cbc..d2f3041c0dfa 100644
--- a/include/net/dcbevent.h
+++ b/include/net/dcbevent.h
@@ -25,9 +25,9 @@ enum dcbevent_notif_type {
 };
 
 #ifdef CONFIG_DCB
-extern int register_dcbevent_notifier(struct notifier_block *nb);
-extern int unregister_dcbevent_notifier(struct notifier_block *nb);
-extern int call_dcbevent_notifiers(unsigned long val, void *v);
+int register_dcbevent_notifier(struct notifier_block *nb);
+int unregister_dcbevent_notifier(struct notifier_block *nb);
+int call_dcbevent_notifiers(unsigned long val, void *v);
 #else
 static inline int
 register_dcbevent_notifier(struct notifier_block *nb)
-- 
cgit 


From 59ddd965c2388720681eb4dc386bfb074e80788e Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 20 Sep 2013 11:23:20 -0700
Subject: decnet (dn*.h): Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/dn.h       | 20 +++++++++++---------
 include/net/dn_dev.h   | 30 +++++++++++++++---------------
 include/net/dn_fib.h   | 47 ++++++++++++++++++++++-------------------------
 include/net/dn_neigh.h | 12 ++++++------
 include/net/dn_nsp.h   | 49 ++++++++++++++++++++++++++-----------------------
 include/net/dn_route.h | 13 +++++++------
 6 files changed, 87 insertions(+), 84 deletions(-)

diff --git a/include/net/dn.h b/include/net/dn.h
index c88bf4ebd330..ccc15588d108 100644
--- a/include/net/dn.h
+++ b/include/net/dn.h
@@ -199,24 +199,26 @@ static inline void dn_sk_ports_copy(struct flowidn *fld, struct dn_scp *scp)
 	fld->fld_dport = scp->addrrem;
 }
 
-extern unsigned int dn_mss_from_pmtu(struct net_device *dev, int mtu);
+unsigned int dn_mss_from_pmtu(struct net_device *dev, int mtu);
 
 #define DN_MENUVER_ACC 0x01
 #define DN_MENUVER_USR 0x02
 #define DN_MENUVER_PRX 0x04
 #define DN_MENUVER_UIC 0x08
 
-extern struct sock *dn_sklist_find_listener(struct sockaddr_dn *addr);
-extern struct sock *dn_find_by_skb(struct sk_buff *skb);
+struct sock *dn_sklist_find_listener(struct sockaddr_dn *addr);
+struct sock *dn_find_by_skb(struct sk_buff *skb);
 #define DN_ASCBUF_LEN 9
-extern char *dn_addr2asc(__u16, char *);
-extern int dn_destroy_timer(struct sock *sk);
+char *dn_addr2asc(__u16, char *);
+int dn_destroy_timer(struct sock *sk);
 
-extern int dn_sockaddr2username(struct sockaddr_dn *addr, unsigned char *buf, unsigned char type);
-extern int dn_username2sockaddr(unsigned char *data, int len, struct sockaddr_dn *addr, unsigned char *type);
+int dn_sockaddr2username(struct sockaddr_dn *addr, unsigned char *buf,
+			 unsigned char type);
+int dn_username2sockaddr(unsigned char *data, int len, struct sockaddr_dn *addr,
+			 unsigned char *type);
 
-extern void dn_start_slow_timer(struct sock *sk);
-extern void dn_stop_slow_timer(struct sock *sk);
+void dn_start_slow_timer(struct sock *sk);
+void dn_stop_slow_timer(struct sock *sk);
 
 extern __le16 decnet_address;
 extern int decnet_debug_level;
diff --git a/include/net/dn_dev.h b/include/net/dn_dev.h
index b9e32db03f20..20b5ab06032d 100644
--- a/include/net/dn_dev.h
+++ b/include/net/dn_dev.h
@@ -148,27 +148,27 @@ struct rtnode_hello_message {
 } __packed;
 
 
-extern void dn_dev_init(void);
-extern void dn_dev_cleanup(void);
+void dn_dev_init(void);
+void dn_dev_cleanup(void);
 
-extern int dn_dev_ioctl(unsigned int cmd, void __user *arg);
+int dn_dev_ioctl(unsigned int cmd, void __user *arg);
 
-extern void dn_dev_devices_off(void);
-extern void dn_dev_devices_on(void);
+void dn_dev_devices_off(void);
+void dn_dev_devices_on(void);
 
-extern void dn_dev_init_pkt(struct sk_buff *skb);
-extern void dn_dev_veri_pkt(struct sk_buff *skb);
-extern void dn_dev_hello(struct sk_buff *skb);
+void dn_dev_init_pkt(struct sk_buff *skb);
+void dn_dev_veri_pkt(struct sk_buff *skb);
+void dn_dev_hello(struct sk_buff *skb);
 
-extern void dn_dev_up(struct net_device *);
-extern void dn_dev_down(struct net_device *);
+void dn_dev_up(struct net_device *);
+void dn_dev_down(struct net_device *);
 
-extern int dn_dev_set_default(struct net_device *dev, int force);
-extern struct net_device *dn_dev_get_default(void);
-extern int dn_dev_bind_default(__le16 *addr);
+int dn_dev_set_default(struct net_device *dev, int force);
+struct net_device *dn_dev_get_default(void);
+int dn_dev_bind_default(__le16 *addr);
 
-extern int register_dnaddr_notifier(struct notifier_block *nb);
-extern int unregister_dnaddr_notifier(struct notifier_block *nb);
+int register_dnaddr_notifier(struct notifier_block *nb);
+int unregister_dnaddr_notifier(struct notifier_block *nb);
 
 static inline int dn_dev_islocal(struct net_device *dev, __le16 addr)
 {
diff --git a/include/net/dn_fib.h b/include/net/dn_fib.h
index 74004af31c48..f2ca135ddcc9 100644
--- a/include/net/dn_fib.h
+++ b/include/net/dn_fib.h
@@ -95,41 +95,38 @@ struct dn_fib_table {
 /*
  * dn_fib.c
  */
-extern void dn_fib_init(void);
-extern void dn_fib_cleanup(void);
-
-extern int dn_fib_ioctl(struct socket *sock, unsigned int cmd, 
-			unsigned long arg);
-extern struct dn_fib_info *dn_fib_create_info(const struct rtmsg *r, 
-				struct nlattr *attrs[],
-				const struct nlmsghdr *nlh, int *errp);
-extern int dn_fib_semantic_match(int type, struct dn_fib_info *fi, 
-			const struct flowidn *fld,
-			struct dn_fib_res *res);
-extern void dn_fib_release_info(struct dn_fib_info *fi);
-extern void dn_fib_flush(void);
-extern void dn_fib_select_multipath(const struct flowidn *fld,
-					struct dn_fib_res *res);
+void dn_fib_init(void);
+void dn_fib_cleanup(void);
+
+int dn_fib_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
+struct dn_fib_info *dn_fib_create_info(const struct rtmsg *r,
+				       struct nlattr *attrs[],
+				       const struct nlmsghdr *nlh, int *errp);
+int dn_fib_semantic_match(int type, struct dn_fib_info *fi,
+			  const struct flowidn *fld, struct dn_fib_res *res);
+void dn_fib_release_info(struct dn_fib_info *fi);
+void dn_fib_flush(void);
+void dn_fib_select_multipath(const struct flowidn *fld, struct dn_fib_res *res);
 
 /*
  * dn_tables.c
  */
-extern struct dn_fib_table *dn_fib_get_table(u32 n, int creat);
-extern struct dn_fib_table *dn_fib_empty_table(void);
-extern void dn_fib_table_init(void);
-extern void dn_fib_table_cleanup(void);
+struct dn_fib_table *dn_fib_get_table(u32 n, int creat);
+struct dn_fib_table *dn_fib_empty_table(void);
+void dn_fib_table_init(void);
+void dn_fib_table_cleanup(void);
 
 /*
  * dn_rules.c
  */
-extern void dn_fib_rules_init(void);
-extern void dn_fib_rules_cleanup(void);
-extern unsigned int dnet_addr_type(__le16 addr);
-extern int dn_fib_lookup(struct flowidn *fld, struct dn_fib_res *res);
+void dn_fib_rules_init(void);
+void dn_fib_rules_cleanup(void);
+unsigned int dnet_addr_type(__le16 addr);
+int dn_fib_lookup(struct flowidn *fld, struct dn_fib_res *res);
 
-extern int dn_fib_dump(struct sk_buff *skb, struct netlink_callback *cb);
+int dn_fib_dump(struct sk_buff *skb, struct netlink_callback *cb);
 
-extern void dn_fib_free_info(struct dn_fib_info *fi);
+void dn_fib_free_info(struct dn_fib_info *fi);
 
 static inline void dn_fib_info_put(struct dn_fib_info *fi)
 {
diff --git a/include/net/dn_neigh.h b/include/net/dn_neigh.h
index 4cb4ae7fb81f..fac4e3f4a6d3 100644
--- a/include/net/dn_neigh.h
+++ b/include/net/dn_neigh.h
@@ -16,12 +16,12 @@ struct dn_neigh {
 	__u8 priority;
 };
 
-extern void dn_neigh_init(void);
-extern void dn_neigh_cleanup(void);
-extern int dn_neigh_router_hello(struct sk_buff *skb);
-extern int dn_neigh_endnode_hello(struct sk_buff *skb);
-extern void dn_neigh_pointopoint_hello(struct sk_buff *skb);
-extern int dn_neigh_elist(struct net_device *dev, unsigned char *ptr, int n);
+void dn_neigh_init(void);
+void dn_neigh_cleanup(void);
+int dn_neigh_router_hello(struct sk_buff *skb);
+int dn_neigh_endnode_hello(struct sk_buff *skb);
+void dn_neigh_pointopoint_hello(struct sk_buff *skb);
+int dn_neigh_elist(struct net_device *dev, unsigned char *ptr, int n);
 
 extern struct neigh_table dn_neigh_table;
 
diff --git a/include/net/dn_nsp.h b/include/net/dn_nsp.h
index e43a2893f132..3a3e33d18456 100644
--- a/include/net/dn_nsp.h
+++ b/include/net/dn_nsp.h
@@ -15,29 +15,32 @@
 *******************************************************************************/
 /* dn_nsp.c functions prototyping */
 
-extern void dn_nsp_send_data_ack(struct sock *sk);
-extern void dn_nsp_send_oth_ack(struct sock *sk);
-extern void dn_nsp_delayed_ack(struct sock *sk);
-extern void dn_send_conn_ack(struct sock *sk);
-extern void dn_send_conn_conf(struct sock *sk, gfp_t gfp);
-extern void dn_nsp_send_disc(struct sock *sk, unsigned char type, 
-			unsigned short reason, gfp_t gfp);
-extern void dn_nsp_return_disc(struct sk_buff *skb, unsigned char type,
-				unsigned short reason);
-extern void dn_nsp_send_link(struct sock *sk, unsigned char lsflags, char fcval);
-extern void dn_nsp_send_conninit(struct sock *sk, unsigned char flags);
-
-extern void dn_nsp_output(struct sock *sk);
-extern int dn_nsp_check_xmit_queue(struct sock *sk, struct sk_buff *skb, struct sk_buff_head *q, unsigned short acknum);
-extern void dn_nsp_queue_xmit(struct sock *sk, struct sk_buff *skb, gfp_t gfp, int oob);
-extern unsigned long dn_nsp_persist(struct sock *sk);
-extern int dn_nsp_xmit_timeout(struct sock *sk);
-
-extern int dn_nsp_rx(struct sk_buff *);
-extern int dn_nsp_backlog_rcv(struct sock *sk, struct sk_buff *skb);
-
-extern struct sk_buff *dn_alloc_skb(struct sock *sk, int size, gfp_t pri);
-extern struct sk_buff *dn_alloc_send_skb(struct sock *sk, size_t *size, int noblock, long timeo, int *err);
+void dn_nsp_send_data_ack(struct sock *sk);
+void dn_nsp_send_oth_ack(struct sock *sk);
+void dn_nsp_delayed_ack(struct sock *sk);
+void dn_send_conn_ack(struct sock *sk);
+void dn_send_conn_conf(struct sock *sk, gfp_t gfp);
+void dn_nsp_send_disc(struct sock *sk, unsigned char type,
+		      unsigned short reason, gfp_t gfp);
+void dn_nsp_return_disc(struct sk_buff *skb, unsigned char type,
+			unsigned short reason);
+void dn_nsp_send_link(struct sock *sk, unsigned char lsflags, char fcval);
+void dn_nsp_send_conninit(struct sock *sk, unsigned char flags);
+
+void dn_nsp_output(struct sock *sk);
+int dn_nsp_check_xmit_queue(struct sock *sk, struct sk_buff *skb,
+			    struct sk_buff_head *q, unsigned short acknum);
+void dn_nsp_queue_xmit(struct sock *sk, struct sk_buff *skb, gfp_t gfp,
+		       int oob);
+unsigned long dn_nsp_persist(struct sock *sk);
+int dn_nsp_xmit_timeout(struct sock *sk);
+
+int dn_nsp_rx(struct sk_buff *);
+int dn_nsp_backlog_rcv(struct sock *sk, struct sk_buff *skb);
+
+struct sk_buff *dn_alloc_skb(struct sock *sk, int size, gfp_t pri);
+struct sk_buff *dn_alloc_send_skb(struct sock *sk, size_t *size, int noblock,
+				  long timeo, int *err);
 
 #define NSP_REASON_OK 0		/* No error */
 #define NSP_REASON_NR 1		/* No resources */
diff --git a/include/net/dn_route.h b/include/net/dn_route.h
index 2e9d317c82dc..b409ad6b8d7a 100644
--- a/include/net/dn_route.h
+++ b/include/net/dn_route.h
@@ -15,10 +15,11 @@
     GNU General Public License for more details.
 *******************************************************************************/
 
-extern struct sk_buff *dn_alloc_skb(struct sock *sk, int size, gfp_t pri);
-extern int dn_route_output_sock(struct dst_entry __rcu **pprt, struct flowidn *, struct sock *sk, int flags);
-extern int dn_cache_dump(struct sk_buff *skb, struct netlink_callback *cb);
-extern void dn_rt_cache_flush(int delay);
+struct sk_buff *dn_alloc_skb(struct sock *sk, int size, gfp_t pri);
+int dn_route_output_sock(struct dst_entry __rcu **pprt, struct flowidn *,
+			 struct sock *sk, int flags);
+int dn_cache_dump(struct sk_buff *skb, struct netlink_callback *cb);
+void dn_rt_cache_flush(int delay);
 
 /* Masks for flags field */
 #define DN_RT_F_PID 0x07 /* Mask for packet type                      */
@@ -92,8 +93,8 @@ static inline bool dn_is_output_route(struct dn_route *rt)
 	return rt->fld.flowidn_iif == 0;
 }
 
-extern void dn_route_init(void);
-extern void dn_route_cleanup(void);
+void dn_route_init(void);
+void dn_route_cleanup(void);
 
 #include <net/sock.h>
 #include <linux/if_arp.h>
-- 
cgit 


From a4023dd01a37f3a648ea028269f946cb55896337 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 20 Sep 2013 11:23:21 -0700
Subject: dst.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/dst.h | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/include/net/dst.h b/include/net/dst.h
index 3bc4865f8267..211dcf1e758e 100644
--- a/include/net/dst.h
+++ b/include/net/dst.h
@@ -106,7 +106,7 @@ struct dst_entry {
 	};
 };
 
-extern u32 *dst_cow_metrics_generic(struct dst_entry *dst, unsigned long old);
+u32 *dst_cow_metrics_generic(struct dst_entry *dst, unsigned long old);
 extern const u32 dst_default_metrics[];
 
 #define DST_METRICS_READ_ONLY	0x1UL
@@ -119,7 +119,7 @@ static inline bool dst_metrics_read_only(const struct dst_entry *dst)
 	return dst->_metrics & DST_METRICS_READ_ONLY;
 }
 
-extern void __dst_destroy_metrics_generic(struct dst_entry *dst, unsigned long old);
+void __dst_destroy_metrics_generic(struct dst_entry *dst, unsigned long old);
 
 static inline void dst_destroy_metrics_generic(struct dst_entry *dst)
 {
@@ -262,7 +262,7 @@ static inline struct dst_entry *dst_clone(struct dst_entry *dst)
 	return dst;
 }
 
-extern void dst_release(struct dst_entry *dst);
+void dst_release(struct dst_entry *dst);
 
 static inline void refdst_drop(unsigned long refdst)
 {
@@ -362,12 +362,11 @@ static inline struct dst_entry *skb_dst_pop(struct sk_buff *skb)
 	return child;
 }
 
-extern int dst_discard(struct sk_buff *skb);
-extern void *dst_alloc(struct dst_ops *ops, struct net_device *dev,
-		       int initial_ref, int initial_obsolete,
-		       unsigned short flags);
-extern void __dst_free(struct dst_entry *dst);
-extern struct dst_entry *dst_destroy(struct dst_entry *dst);
+int dst_discard(struct sk_buff *skb);
+void *dst_alloc(struct dst_ops *ops, struct net_device *dev, int initial_ref,
+		int initial_obsolete, unsigned short flags);
+void __dst_free(struct dst_entry *dst);
+struct dst_entry *dst_destroy(struct dst_entry *dst);
 
 static inline void dst_free(struct dst_entry *dst)
 {
@@ -463,7 +462,7 @@ static inline struct dst_entry *dst_check(struct dst_entry *dst, u32 cookie)
 	return dst;
 }
 
-extern void		dst_init(void);
+void dst_init(void);
 
 /* Flags for xfrm_lookup flags argument. */
 enum {
@@ -480,9 +479,9 @@ static inline struct dst_entry *xfrm_lookup(struct net *net,
 	return dst_orig;
 } 
 #else
-extern struct dst_entry *xfrm_lookup(struct net *net, struct dst_entry *dst_orig,
-				     const struct flowi *fl, struct sock *sk,
-				     int flags);
+struct dst_entry *xfrm_lookup(struct net *net, struct dst_entry *dst_orig,
+			      const struct flowi *fl, struct sock *sk,
+			      int flags);
 #endif
 
 #endif /* _NET_DST_H */
-- 
cgit 


From 7b3852a2fdd86238709038654f010befca5b47c3 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 20 Sep 2013 11:23:22 -0700
Subject: esp.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/esp.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/net/esp.h b/include/net/esp.h
index d58451331dbd..1356dda00d22 100644
--- a/include/net/esp.h
+++ b/include/net/esp.h
@@ -13,7 +13,7 @@ struct esp_data {
 	struct crypto_aead *aead;
 };
 
-extern void *pskb_put(struct sk_buff *skb, struct sk_buff *tail, int len);
+void *pskb_put(struct sk_buff *skb, struct sk_buff *tail, int len);
 
 struct ip_esp_hdr;
 
-- 
cgit 


From 8de6879fa949b3817f19f145a491e93df8925bc0 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 20 Sep 2013 11:23:23 -0700
Subject: fib_rules.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/fib_rules.h | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/include/net/fib_rules.h b/include/net/fib_rules.h
index 4b2b557fb0e8..e584de16e4c3 100644
--- a/include/net/fib_rules.h
+++ b/include/net/fib_rules.h
@@ -115,14 +115,13 @@ static inline u32 frh_get_table(struct fib_rule_hdr *frh, struct nlattr **nla)
 	return frh->table;
 }
 
-extern struct fib_rules_ops *fib_rules_register(const struct fib_rules_ops *, struct net *);
-extern void fib_rules_unregister(struct fib_rules_ops *);
+struct fib_rules_ops *fib_rules_register(const struct fib_rules_ops *,
+					 struct net *);
+void fib_rules_unregister(struct fib_rules_ops *);
 
-extern int			fib_rules_lookup(struct fib_rules_ops *,
-						 struct flowi *, int flags,
-						 struct fib_lookup_arg *);
-extern int			fib_default_rule_add(struct fib_rules_ops *,
-						     u32 pref, u32 table,
-						     u32 flags);
-extern u32			fib_default_rule_pref(struct fib_rules_ops *ops);
+int fib_rules_lookup(struct fib_rules_ops *, struct flowi *, int flags,
+		     struct fib_lookup_arg *);
+int fib_default_rule_add(struct fib_rules_ops *, u32 pref, u32 table,
+			 u32 flags);
+u32 fib_default_rule_pref(struct fib_rules_ops *ops);
 #endif
-- 
cgit 


From 4787342c390a8e7570a81a62c9b361d7a4380893 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 20 Sep 2013 11:23:24 -0700
Subject: flow.h/flow_keys.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/flow.h      | 11 ++++++-----
 include/net/flow_keys.h |  2 +-
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/include/net/flow.h b/include/net/flow.h
index 628e11b98c58..65ce471d2ab5 100644
--- a/include/net/flow.h
+++ b/include/net/flow.h
@@ -215,12 +215,13 @@ typedef struct flow_cache_object *(*flow_resolve_t)(
 		struct net *net, const struct flowi *key, u16 family,
 		u8 dir, struct flow_cache_object *oldobj, void *ctx);
 
-extern struct flow_cache_object *flow_cache_lookup(
-		struct net *net, const struct flowi *key, u16 family,
-		u8 dir, flow_resolve_t resolver, void *ctx);
+struct flow_cache_object *flow_cache_lookup(struct net *net,
+					    const struct flowi *key, u16 family,
+					    u8 dir, flow_resolve_t resolver,
+					    void *ctx);
 
-extern void flow_cache_flush(void);
-extern void flow_cache_flush_deferred(void);
+void flow_cache_flush(void);
+void flow_cache_flush_deferred(void);
 extern atomic_t flow_cache_genid;
 
 #endif
diff --git a/include/net/flow_keys.h b/include/net/flow_keys.h
index bb8271d487b7..ac2439d02f54 100644
--- a/include/net/flow_keys.h
+++ b/include/net/flow_keys.h
@@ -13,5 +13,5 @@ struct flow_keys {
 	u8 ip_proto;
 };
 
-extern bool skb_flow_dissect(const struct sk_buff *skb, struct flow_keys *flow);
+bool skb_flow_dissect(const struct sk_buff *skb, struct flow_keys *flow);
 #endif
-- 
cgit 


From 2008f21cbdc48761270cec119c8385584691cf34 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 20 Sep 2013 11:23:25 -0700
Subject: garp.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/garp.h | 27 +++++++++++++--------------
 1 file changed, 13 insertions(+), 14 deletions(-)

diff --git a/include/net/garp.h b/include/net/garp.h
index 834d8add9e5f..abf33bbd2e6a 100644
--- a/include/net/garp.h
+++ b/include/net/garp.h
@@ -112,19 +112,18 @@ struct garp_port {
 	struct rcu_head			rcu;
 };
 
-extern int	garp_register_application(struct garp_application *app);
-extern void	garp_unregister_application(struct garp_application *app);
-
-extern int	garp_init_applicant(struct net_device *dev,
-				    struct garp_application *app);
-extern void	garp_uninit_applicant(struct net_device *dev,
-				      struct garp_application *app);
-
-extern int	garp_request_join(const struct net_device *dev,
-				  const struct garp_application *app,
-				  const void *data, u8 len, u8 type);
-extern void	garp_request_leave(const struct net_device *dev,
-				   const struct garp_application *app,
-				   const void *data, u8 len, u8 type);
+int garp_register_application(struct garp_application *app);
+void garp_unregister_application(struct garp_application *app);
+
+int garp_init_applicant(struct net_device *dev, struct garp_application *app);
+void garp_uninit_applicant(struct net_device *dev,
+			   struct garp_application *app);
+
+int garp_request_join(const struct net_device *dev,
+		      const struct garp_application *app, const void *data,
+		      u8 len, u8 type);
+void garp_request_leave(const struct net_device *dev,
+			const struct garp_application *app,
+			const void *data, u8 len, u8 type);
 
 #endif /* _NET_GARP_H */
-- 
cgit 


From 8aae218f58f44471c6715e695da5ed9f54dd4491 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 20 Sep 2013 11:23:26 -0700
Subject: gen_stats.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/gen_stats.h | 51 ++++++++++++++++++++++++-------------------------
 1 file changed, 25 insertions(+), 26 deletions(-)

diff --git a/include/net/gen_stats.h b/include/net/gen_stats.h
index cf8439ba4d11..ea4271dceff0 100644
--- a/include/net/gen_stats.h
+++ b/include/net/gen_stats.h
@@ -19,32 +19,31 @@ struct gnet_dump {
 	struct tc_stats   tc_stats;
 };
 
-extern int gnet_stats_start_copy(struct sk_buff *skb, int type,
+int gnet_stats_start_copy(struct sk_buff *skb, int type, spinlock_t *lock,
+			  struct gnet_dump *d);
+
+int gnet_stats_start_copy_compat(struct sk_buff *skb, int type,
+				 int tc_stats_type, int xstats_type,
 				 spinlock_t *lock, struct gnet_dump *d);
 
-extern int gnet_stats_start_copy_compat(struct sk_buff *skb, int type,
-					int tc_stats_type,int xstats_type,
-					spinlock_t *lock, struct gnet_dump *d);
-
-extern int gnet_stats_copy_basic(struct gnet_dump *d,
-				 struct gnet_stats_basic_packed *b);
-extern int gnet_stats_copy_rate_est(struct gnet_dump *d,
-				    const struct gnet_stats_basic_packed *b,
-				    struct gnet_stats_rate_est64 *r);
-extern int gnet_stats_copy_queue(struct gnet_dump *d,
-				 struct gnet_stats_queue *q);
-extern int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len);
-
-extern int gnet_stats_finish_copy(struct gnet_dump *d);
-
-extern int gen_new_estimator(struct gnet_stats_basic_packed *bstats,
-			     struct gnet_stats_rate_est64 *rate_est,
-			     spinlock_t *stats_lock, struct nlattr *opt);
-extern void gen_kill_estimator(struct gnet_stats_basic_packed *bstats,
-			       struct gnet_stats_rate_est64 *rate_est);
-extern int gen_replace_estimator(struct gnet_stats_basic_packed *bstats,
-				 struct gnet_stats_rate_est64 *rate_est,
-				 spinlock_t *stats_lock, struct nlattr *opt);
-extern bool gen_estimator_active(const struct gnet_stats_basic_packed *bstats,
-				 const struct gnet_stats_rate_est64 *rate_est);
+int gnet_stats_copy_basic(struct gnet_dump *d,
+			  struct gnet_stats_basic_packed *b);
+int gnet_stats_copy_rate_est(struct gnet_dump *d,
+			     const struct gnet_stats_basic_packed *b,
+			     struct gnet_stats_rate_est64 *r);
+int gnet_stats_copy_queue(struct gnet_dump *d, struct gnet_stats_queue *q);
+int gnet_stats_copy_app(struct gnet_dump *d, void *st, int len);
+
+int gnet_stats_finish_copy(struct gnet_dump *d);
+
+int gen_new_estimator(struct gnet_stats_basic_packed *bstats,
+		      struct gnet_stats_rate_est64 *rate_est,
+		      spinlock_t *stats_lock, struct nlattr *opt);
+void gen_kill_estimator(struct gnet_stats_basic_packed *bstats,
+			struct gnet_stats_rate_est64 *rate_est);
+int gen_replace_estimator(struct gnet_stats_basic_packed *bstats,
+			  struct gnet_stats_rate_est64 *rate_est,
+			  spinlock_t *stats_lock, struct nlattr *opt);
+bool gen_estimator_active(const struct gnet_stats_basic_packed *bstats,
+			  const struct gnet_stats_rate_est64 *rate_est);
 #endif
-- 
cgit 


From ff2b94d2c3d075d0f2fde330e3b5a73053c426c7 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 20 Sep 2013 11:23:27 -0700
Subject: genetlink.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/genetlink.h | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 8e0b6c856a13..9b787b62cf16 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -122,7 +122,7 @@ struct genl_ops {
 	struct list_head	ops_list;
 };
 
-extern int __genl_register_family(struct genl_family *family);
+int __genl_register_family(struct genl_family *family);
 
 static inline int genl_register_family(struct genl_family *family)
 {
@@ -130,8 +130,8 @@ static inline int genl_register_family(struct genl_family *family)
 	return __genl_register_family(family);
 }
 
-extern int __genl_register_family_with_ops(struct genl_family *family,
-	struct genl_ops *ops, size_t n_ops);
+int __genl_register_family_with_ops(struct genl_family *family,
+				    struct genl_ops *ops, size_t n_ops);
 
 static inline int genl_register_family_with_ops(struct genl_family *family,
 	struct genl_ops *ops, size_t n_ops)
@@ -140,18 +140,18 @@ static inline int genl_register_family_with_ops(struct genl_family *family,
 	return __genl_register_family_with_ops(family, ops, n_ops);
 }
 
-extern int genl_unregister_family(struct genl_family *family);
-extern int genl_register_ops(struct genl_family *, struct genl_ops *ops);
-extern int genl_unregister_ops(struct genl_family *, struct genl_ops *ops);
-extern int genl_register_mc_group(struct genl_family *family,
-				  struct genl_multicast_group *grp);
-extern void genl_unregister_mc_group(struct genl_family *family,
-				     struct genl_multicast_group *grp);
-extern void genl_notify(struct sk_buff *skb, struct net *net, u32 portid,
-			u32 group, struct nlmsghdr *nlh, gfp_t flags);
+int genl_unregister_family(struct genl_family *family);
+int genl_register_ops(struct genl_family *, struct genl_ops *ops);
+int genl_unregister_ops(struct genl_family *, struct genl_ops *ops);
+int genl_register_mc_group(struct genl_family *family,
+			   struct genl_multicast_group *grp);
+void genl_unregister_mc_group(struct genl_family *family,
+			      struct genl_multicast_group *grp);
+void genl_notify(struct sk_buff *skb, struct net *net, u32 portid,
+		 u32 group, struct nlmsghdr *nlh, gfp_t flags);
 
 void *genlmsg_put(struct sk_buff *skb, u32 portid, u32 seq,
-				struct genl_family *family, int flags, u8 cmd);
+		  struct genl_family *family, int flags, u8 cmd);
 
 /**
  * genlmsg_nlhdr - Obtain netlink header from user specified header
-- 
cgit 


From e60ab84dd59cc0ddb46a7696a56f9de8b8b22f39 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 20 Sep 2013 11:23:28 -0700
Subject: icmp.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/icmp.h | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/net/icmp.h b/include/net/icmp.h
index 081439fd070e..970028e13382 100644
--- a/include/net/icmp.h
+++ b/include/net/icmp.h
@@ -39,10 +39,10 @@ struct net_proto_family;
 struct sk_buff;
 struct net;
 
-extern void	icmp_send(struct sk_buff *skb_in,  int type, int code, __be32 info);
-extern int	icmp_rcv(struct sk_buff *skb);
-extern void	icmp_err(struct sk_buff *, u32 info);
-extern int	icmp_init(void);
-extern void	icmp_out_count(struct net *net, unsigned char type);
+void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info);
+int icmp_rcv(struct sk_buff *skb);
+void icmp_err(struct sk_buff *skb, u32 info);
+int icmp_init(void);
+void icmp_out_count(struct net *net, unsigned char type);
 
 #endif	/* _ICMP_H */
-- 
cgit 


From 7d1815e1e51af36b5b52983cce8bc23cd79a92a9 Mon Sep 17 00:00:00 2001
From: Jean Delvare <jdelvare@suse.de>
Date: Fri, 13 Sep 2013 21:41:48 +0200
Subject: gpio: ucb1400: Can be built as a module

With the recent code cleanup from Marek Vasut, driver gpio-ucb1400 can
be built as a module, so change symbol GPIO_UCB1400 from bool to
tristate.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Marek Vasut <marex@denx.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 8e1d4db4be5f..7de768e92892 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -703,7 +703,7 @@ config GPIO_74X164
 comment "AC97 GPIO expanders:"
 
 config GPIO_UCB1400
-	bool "Philips UCB1400 GPIO"
+	tristate "Philips UCB1400 GPIO"
 	depends on UCB1400_CORE
 	help
 	  This enables support for the Philips UCB1400 GPIO pins.
-- 
cgit 


From e9004f5039b3840089cb1cb0fe558a81e2bb55f0 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Mon, 9 Sep 2013 11:59:51 +0200
Subject: ARM: plat-iop: move the GPIO driver to drivers/gpio

Move the IOP GPIO driver to live with its siblings in the
GPIO subsystem.

Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Mikael Pettersson <mikpe@it.uu.se>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/Kconfig           |  2 +
 arch/arm/plat-iop/Makefile |  2 -
 arch/arm/plat-iop/gpio.c   | 93 ----------------------------------------------
 drivers/gpio/Kconfig       |  9 +++++
 drivers/gpio/Makefile      |  1 +
 drivers/gpio/gpio-iop.c    | 93 ++++++++++++++++++++++++++++++++++++++++++++++
 6 files changed, 105 insertions(+), 95 deletions(-)
 delete mode 100644 arch/arm/plat-iop/gpio.c
 create mode 100644 drivers/gpio/gpio-iop.c

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3f7714d8d2d2..fc8c0928bfaf 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -457,6 +457,7 @@ config ARCH_IOP32X
 	depends on MMU
 	select ARCH_REQUIRE_GPIOLIB
 	select CPU_XSCALE
+	select GPIO_IOP
 	select NEED_MACH_GPIO_H
 	select NEED_RET_TO_USER
 	select PCI
@@ -470,6 +471,7 @@ config ARCH_IOP33X
 	depends on MMU
 	select ARCH_REQUIRE_GPIOLIB
 	select CPU_XSCALE
+	select GPIO_IOP
 	select NEED_MACH_GPIO_H
 	select NEED_RET_TO_USER
 	select PCI
diff --git a/arch/arm/plat-iop/Makefile b/arch/arm/plat-iop/Makefile
index a99dc15a70f7..224e56c6049b 100644
--- a/arch/arm/plat-iop/Makefile
+++ b/arch/arm/plat-iop/Makefile
@@ -5,7 +5,6 @@
 obj-y :=
 
 # IOP32X
-obj-$(CONFIG_ARCH_IOP32X) += gpio.o
 obj-$(CONFIG_ARCH_IOP32X) += i2c.o
 obj-$(CONFIG_ARCH_IOP32X) += pci.o
 obj-$(CONFIG_ARCH_IOP32X) += setup.o
@@ -16,7 +15,6 @@ obj-$(CONFIG_ARCH_IOP32X) += pmu.o
 obj-$(CONFIG_ARCH_IOP32X) += restart.o
 
 # IOP33X
-obj-$(CONFIG_ARCH_IOP33X) += gpio.o
 obj-$(CONFIG_ARCH_IOP33X) += i2c.o
 obj-$(CONFIG_ARCH_IOP33X) += pci.o
 obj-$(CONFIG_ARCH_IOP33X) += setup.o
diff --git a/arch/arm/plat-iop/gpio.c b/arch/arm/plat-iop/gpio.c
deleted file mode 100644
index 697de6dc4936..000000000000
--- a/arch/arm/plat-iop/gpio.c
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * arch/arm/plat-iop/gpio.c
- * GPIO handling for Intel IOP3xx processors.
- *
- * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or (at
- * your option) any later version.
- */
-
-#include <linux/device.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/errno.h>
-#include <linux/gpio.h>
-#include <linux/export.h>
-#include <asm/hardware/iop3xx.h>
-#include <mach/gpio.h>
-
-void gpio_line_config(int line, int direction)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	if (direction == GPIO_IN) {
-		*IOP3XX_GPOE |= 1 << line;
-	} else if (direction == GPIO_OUT) {
-		*IOP3XX_GPOE &= ~(1 << line);
-	}
-	local_irq_restore(flags);
-}
-EXPORT_SYMBOL(gpio_line_config);
-
-int gpio_line_get(int line)
-{
-	return !!(*IOP3XX_GPID & (1 << line));
-}
-EXPORT_SYMBOL(gpio_line_get);
-
-void gpio_line_set(int line, int value)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	if (value == GPIO_LOW) {
-		*IOP3XX_GPOD &= ~(1 << line);
-	} else if (value == GPIO_HIGH) {
-		*IOP3XX_GPOD |= 1 << line;
-	}
-	local_irq_restore(flags);
-}
-EXPORT_SYMBOL(gpio_line_set);
-
-static int iop3xx_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
-{
-	gpio_line_config(gpio, GPIO_IN);
-	return 0;
-}
-
-static int iop3xx_gpio_direction_output(struct gpio_chip *chip, unsigned gpio, int level)
-{
-	gpio_line_set(gpio, level);
-	gpio_line_config(gpio, GPIO_OUT);
-	return 0;
-}
-
-static int iop3xx_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
-{
-	return gpio_line_get(gpio);
-}
-
-static void iop3xx_gpio_set_value(struct gpio_chip *chip, unsigned gpio, int value)
-{
-	gpio_line_set(gpio, value);
-}
-
-static struct gpio_chip iop3xx_chip = {
-	.label			= "iop3xx",
-	.direction_input	= iop3xx_gpio_direction_input,
-	.get			= iop3xx_gpio_get_value,
-	.direction_output	= iop3xx_gpio_direction_output,
-	.set			= iop3xx_gpio_set_value,
-	.base			= 0,
-	.ngpio			= IOP3XX_N_GPIOS,
-};
-
-static int __init iop3xx_gpio_setup(void)
-{
-	return gpiochip_add(&iop3xx_chip);
-}
-arch_initcall(iop3xx_gpio_setup);
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index b6ed304863eb..cc30426d31ec 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -320,6 +320,15 @@ config GPIO_ICH
 
 	  If unsure, say N.
 
+config GPIO_IOP
+	tristate "Intel IOP GPIO"
+	depends on ARM && (ARCH_IOP32X || ARCH_IOP33X)
+	help
+	  Say yes here to support the GPIO functionality of a number of Intel
+	  IOP32X or IOP33X.
+
+	  If unsure, say N.
+
 config GPIO_VX855
 	tristate "VIA VX855/VX875 GPIO"
 	depends on PCI
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 98e23ebba2cf..06e5662aa4ec 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -28,6 +28,7 @@ obj-$(CONFIG_GPIO_F7188X)	+= gpio-f7188x.o
 obj-$(CONFIG_GPIO_GE_FPGA)	+= gpio-ge.o
 obj-$(CONFIG_GPIO_GRGPIO)	+= gpio-grgpio.o
 obj-$(CONFIG_GPIO_ICH)		+= gpio-ich.o
+obj-$(CONFIG_GPIO_IOP)		+= gpio-iop.o
 obj-$(CONFIG_GPIO_IT8761E)	+= gpio-it8761e.o
 obj-$(CONFIG_GPIO_JANZ_TTL)	+= gpio-janz-ttl.o
 obj-$(CONFIG_GPIO_KEMPLD)	+= gpio-kempld.o
diff --git a/drivers/gpio/gpio-iop.c b/drivers/gpio/gpio-iop.c
new file mode 100644
index 000000000000..697de6dc4936
--- /dev/null
+++ b/drivers/gpio/gpio-iop.c
@@ -0,0 +1,93 @@
+/*
+ * arch/arm/plat-iop/gpio.c
+ * GPIO handling for Intel IOP3xx processors.
+ *
+ * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or (at
+ * your option) any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/gpio.h>
+#include <linux/export.h>
+#include <asm/hardware/iop3xx.h>
+#include <mach/gpio.h>
+
+void gpio_line_config(int line, int direction)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	if (direction == GPIO_IN) {
+		*IOP3XX_GPOE |= 1 << line;
+	} else if (direction == GPIO_OUT) {
+		*IOP3XX_GPOE &= ~(1 << line);
+	}
+	local_irq_restore(flags);
+}
+EXPORT_SYMBOL(gpio_line_config);
+
+int gpio_line_get(int line)
+{
+	return !!(*IOP3XX_GPID & (1 << line));
+}
+EXPORT_SYMBOL(gpio_line_get);
+
+void gpio_line_set(int line, int value)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	if (value == GPIO_LOW) {
+		*IOP3XX_GPOD &= ~(1 << line);
+	} else if (value == GPIO_HIGH) {
+		*IOP3XX_GPOD |= 1 << line;
+	}
+	local_irq_restore(flags);
+}
+EXPORT_SYMBOL(gpio_line_set);
+
+static int iop3xx_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
+{
+	gpio_line_config(gpio, GPIO_IN);
+	return 0;
+}
+
+static int iop3xx_gpio_direction_output(struct gpio_chip *chip, unsigned gpio, int level)
+{
+	gpio_line_set(gpio, level);
+	gpio_line_config(gpio, GPIO_OUT);
+	return 0;
+}
+
+static int iop3xx_gpio_get_value(struct gpio_chip *chip, unsigned gpio)
+{
+	return gpio_line_get(gpio);
+}
+
+static void iop3xx_gpio_set_value(struct gpio_chip *chip, unsigned gpio, int value)
+{
+	gpio_line_set(gpio, value);
+}
+
+static struct gpio_chip iop3xx_chip = {
+	.label			= "iop3xx",
+	.direction_input	= iop3xx_gpio_direction_input,
+	.get			= iop3xx_gpio_get_value,
+	.direction_output	= iop3xx_gpio_direction_output,
+	.set			= iop3xx_gpio_set_value,
+	.base			= 0,
+	.ngpio			= IOP3XX_N_GPIOS,
+};
+
+static int __init iop3xx_gpio_setup(void)
+{
+	return gpiochip_add(&iop3xx_chip);
+}
+arch_initcall(iop3xx_gpio_setup);
-- 
cgit 


From 7111f8780fcf770d8624d758fd240e585adf7d3c Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Mon, 9 Sep 2013 14:45:47 +0200
Subject: ARM: iop32x: request and issue reset using gpio

As the IOP GPIO driver supports gpiolib we can use the standard
GPIO calls to issue a reset of the machine instead of using the
custom gpio_line_set/config calls. Also request the GPIO when
initializing the machine.

Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Mikael Pettersson <mikpe@it.uu.se>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-iop32x/n2100.c | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-iop32x/n2100.c b/arch/arm/mach-iop32x/n2100.c
index 069144300b77..6bace5bc7ebb 100644
--- a/arch/arm/mach-iop32x/n2100.c
+++ b/arch/arm/mach-iop32x/n2100.c
@@ -30,6 +30,7 @@
 #include <linux/platform_device.h>
 #include <linux/reboot.h>
 #include <linux/io.h>
+#include <linux/gpio.h>
 #include <mach/hardware.h>
 #include <asm/irq.h>
 #include <asm/mach/arch.h>
@@ -288,8 +289,14 @@ static void n2100_power_off(void)
 
 static void n2100_restart(enum reboot_mode mode, const char *cmd)
 {
-	gpio_line_set(N2100_HARDWARE_RESET, GPIO_LOW);
-	gpio_line_config(N2100_HARDWARE_RESET, GPIO_OUT);
+	int ret;
+
+	ret = gpio_direction_output(N2100_HARDWARE_RESET, 0);
+	if (ret) {
+		pr_crit("could not drive reset GPIO low\n");
+		return;
+	}
+	/* Wait for reset to happen */
 	while (1)
 		;
 }
@@ -308,6 +315,19 @@ static void power_button_poll(unsigned long dummy)
 	add_timer(&power_button_poll_timer);
 }
 
+static int __init n2100_request_gpios(void)
+{
+	int ret;
+
+	if (!machine_is_n2100())
+		return 0;
+
+	ret = gpio_request(N2100_HARDWARE_RESET, "reset");
+	if (ret)
+		pr_err("could not request reset GPIO\n");
+	return 0;
+}
+device_initcall(n2100_request_gpios);
 
 static void __init n2100_init_machine(void)
 {
-- 
cgit 


From afc3b79f5dbddd4ab210beb9cc6da102a1032b89 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Mon, 9 Sep 2013 14:53:02 +0200
Subject: ARM: iop32x: read N2100 power key using gpiolib

Refrain from using the custom gpio_line_get() to read the power
key on the N2100, use the gpiolib function gpio_get() instead.
Also request the line in the GPIOs initicall, and move the poll
timer setup to that inicall so the gpio chip is available before
we request this GPIO and start to poll it.

Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Mikael Pettersson <mikpe@it.uu.se>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-iop32x/n2100.c | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/arch/arm/mach-iop32x/n2100.c b/arch/arm/mach-iop32x/n2100.c
index 6bace5bc7ebb..bc40a97050a1 100644
--- a/arch/arm/mach-iop32x/n2100.c
+++ b/arch/arm/mach-iop32x/n2100.c
@@ -306,7 +306,7 @@ static struct timer_list power_button_poll_timer;
 
 static void power_button_poll(unsigned long dummy)
 {
-	if (gpio_line_get(N2100_POWER_BUTTON) == 0) {
+	if (gpio_get_value(N2100_POWER_BUTTON) == 0) {
 		ctrl_alt_del();
 		return;
 	}
@@ -325,6 +325,20 @@ static int __init n2100_request_gpios(void)
 	ret = gpio_request(N2100_HARDWARE_RESET, "reset");
 	if (ret)
 		pr_err("could not request reset GPIO\n");
+
+	ret = gpio_request(N2100_POWER_BUTTON, "power");
+	if (ret)
+		pr_err("could not request power GPIO\n");
+	else {
+		ret = gpio_direction_input(N2100_POWER_BUTTON);
+		if (ret)
+			pr_err("could not set power GPIO as input\n");
+	}
+	/* Set up power button poll timer */
+	init_timer(&power_button_poll_timer);
+	power_button_poll_timer.function = power_button_poll;
+	power_button_poll_timer.expires = jiffies + (HZ / 10);
+	add_timer(&power_button_poll_timer);
 	return 0;
 }
 device_initcall(n2100_request_gpios);
@@ -341,11 +355,6 @@ static void __init n2100_init_machine(void)
 		ARRAY_SIZE(n2100_i2c_devices));
 
 	pm_power_off = n2100_power_off;
-
-	init_timer(&power_button_poll_timer);
-	power_button_poll_timer.function = power_button_poll;
-	power_button_poll_timer.expires = jiffies + (HZ / 10);
-	add_timer(&power_button_poll_timer);
 }
 
 MACHINE_START(N2100, "Thecus N2100")
-- 
cgit 


From f6ffa5ee039cd0168d82e3edd712ebbb1de93a00 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Mon, 9 Sep 2013 15:00:40 +0200
Subject: gpio: decouple the IOP GPIO driver from platform

This removes the only dependence between the IOP GPIO
driver and the GENERIC_GPIO header in <mach/gpio.h>
and its common implementation in the <asm/*> namespace
by copying the one constant it is using into the driver
file.

Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Mikael Pettersson <mikpe@it.uu.se>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-iop.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-iop.c b/drivers/gpio/gpio-iop.c
index 697de6dc4936..d4a170dfe504 100644
--- a/drivers/gpio/gpio-iop.c
+++ b/drivers/gpio/gpio-iop.c
@@ -16,8 +16,8 @@
 #include <linux/errno.h>
 #include <linux/gpio.h>
 #include <linux/export.h>
-#include <asm/hardware/iop3xx.h>
-#include <mach/gpio.h>
+
+#define IOP3XX_N_GPIOS	8
 
 void gpio_line_config(int line, int direction)
 {
-- 
cgit 


From 51a97d829e32b7a1b960d3365e4c2546c9c792aa Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Mon, 9 Sep 2013 16:07:42 +0200
Subject: ARM: plat-iop: remove custom complex GPIO implementation

The kernel will now only use gpiolib to access GPIOs, so remove
the complex GPIO flag and the custom implementation.

Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Mikael Pettersson <mikpe@it.uu.se>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/include/asm/hardware/iop3xx-gpio.h | 43 -----------------------------
 arch/arm/include/asm/hardware/iop3xx.h      |  3 --
 drivers/gpio/gpio-iop.c                     |  9 ++----
 3 files changed, 3 insertions(+), 52 deletions(-)

diff --git a/arch/arm/include/asm/hardware/iop3xx-gpio.h b/arch/arm/include/asm/hardware/iop3xx-gpio.h
index 9eda7dc92ad8..e2a097078a06 100644
--- a/arch/arm/include/asm/hardware/iop3xx-gpio.h
+++ b/arch/arm/include/asm/hardware/iop3xx-gpio.h
@@ -28,48 +28,5 @@
 #include <mach/hardware.h>
 #include <asm-generic/gpio.h>
 
-#define __ARM_GPIOLIB_COMPLEX
-
-#define IOP3XX_N_GPIOS	8
-
-static inline int gpio_get_value(unsigned gpio)
-{
-	if (gpio > IOP3XX_N_GPIOS)
-		return __gpio_get_value(gpio);
-
-	return gpio_line_get(gpio);
-}
-
-static inline void gpio_set_value(unsigned gpio, int value)
-{
-	if (gpio > IOP3XX_N_GPIOS) {
-		__gpio_set_value(gpio, value);
-		return;
-	}
-	gpio_line_set(gpio, value);
-}
-
-static inline int gpio_cansleep(unsigned gpio)
-{
-	if (gpio < IOP3XX_N_GPIOS)
-		return 0;
-	else
-		return __gpio_cansleep(gpio);
-}
-
-/*
- * The GPIOs are not generating any interrupt
- * Note : manuals are not clear about this
- */
-static inline int gpio_to_irq(int gpio)
-{
-	return -EINVAL;
-}
-
-static inline int irq_to_gpio(int gpio)
-{
-	return -EINVAL;
-}
-
 #endif
 
diff --git a/arch/arm/include/asm/hardware/iop3xx.h b/arch/arm/include/asm/hardware/iop3xx.h
index 423744bf18eb..6af9c2841fcb 100644
--- a/arch/arm/include/asm/hardware/iop3xx.h
+++ b/arch/arm/include/asm/hardware/iop3xx.h
@@ -25,9 +25,6 @@
 #define IOP3XX_GPIO_LINE(x)	(x)
 
 #ifndef __ASSEMBLY__
-extern void gpio_line_config(int line, int direction);
-extern int  gpio_line_get(int line);
-extern void gpio_line_set(int line, int value);
 extern int init_atu;
 extern int iop3xx_get_init_atu(void);
 #endif
diff --git a/drivers/gpio/gpio-iop.c b/drivers/gpio/gpio-iop.c
index d4a170dfe504..17cc7010cd04 100644
--- a/drivers/gpio/gpio-iop.c
+++ b/drivers/gpio/gpio-iop.c
@@ -19,7 +19,7 @@
 
 #define IOP3XX_N_GPIOS	8
 
-void gpio_line_config(int line, int direction)
+static void gpio_line_config(int line, int direction)
 {
 	unsigned long flags;
 
@@ -31,15 +31,13 @@ void gpio_line_config(int line, int direction)
 	}
 	local_irq_restore(flags);
 }
-EXPORT_SYMBOL(gpio_line_config);
 
-int gpio_line_get(int line)
+static int gpio_line_get(int line)
 {
 	return !!(*IOP3XX_GPID & (1 << line));
 }
-EXPORT_SYMBOL(gpio_line_get);
 
-void gpio_line_set(int line, int value)
+static void gpio_line_set(int line, int value)
 {
 	unsigned long flags;
 
@@ -51,7 +49,6 @@ void gpio_line_set(int line, int value)
 	}
 	local_irq_restore(flags);
 }
-EXPORT_SYMBOL(gpio_line_set);
 
 static int iop3xx_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
 {
-- 
cgit 


From 7b85b867b99044da93f83851c806d1e324d49ed5 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Mon, 9 Sep 2013 16:39:51 +0200
Subject: ARM: plat-iop: instantiate GPIO from platform device

This converts the IOP32x and IOP33x platforms to pass their
base address offset by a resource attached to a platform device
instead of using static offset macros implicitly passed
through <linux/gpio.h> including <mach/gpio.h>. Delete the
local <mach/gpio.h> and <asm/hardware/iop3xx-gpio.h> headers
and remove the selection of NEED_MACH_GPIO_H.

Pass the virtual address as a resource in the platform device
at this point for bisectability, next patch will pass the
physical address as is custom.

Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Mikael Pettersson <mikpe@it.uu.se>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/Kconfig                            |  2 --
 arch/arm/include/asm/hardware/iop3xx-gpio.h | 32 -------------------------
 arch/arm/include/asm/hardware/iop3xx.h      |  9 --------
 arch/arm/mach-iop32x/em7210.c               |  2 ++
 arch/arm/mach-iop32x/glantank.c             |  2 ++
 arch/arm/mach-iop32x/gpio-iop32x.h          | 10 ++++++++
 arch/arm/mach-iop32x/include/mach/gpio.h    |  6 -----
 arch/arm/mach-iop32x/include/mach/iop32x.h  |  1 -
 arch/arm/mach-iop32x/iq31244.c              |  2 ++
 arch/arm/mach-iop32x/iq80321.c              |  2 ++
 arch/arm/mach-iop32x/n2100.c                |  2 ++
 arch/arm/mach-iop33x/include/mach/gpio.h    |  6 -----
 arch/arm/mach-iop33x/include/mach/iop33x.h  |  1 -
 arch/arm/mach-iop33x/iq80331.c              |  7 ++++++
 arch/arm/mach-iop33x/iq80332.c              |  7 ++++++
 drivers/gpio/gpio-iop.c                     | 36 +++++++++++++++++++++++++++--
 16 files changed, 68 insertions(+), 59 deletions(-)
 delete mode 100644 arch/arm/include/asm/hardware/iop3xx-gpio.h
 create mode 100644 arch/arm/mach-iop32x/gpio-iop32x.h
 delete mode 100644 arch/arm/mach-iop32x/include/mach/gpio.h
 delete mode 100644 arch/arm/mach-iop33x/include/mach/gpio.h

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index fc8c0928bfaf..e83529b42ac6 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -458,7 +458,6 @@ config ARCH_IOP32X
 	select ARCH_REQUIRE_GPIOLIB
 	select CPU_XSCALE
 	select GPIO_IOP
-	select NEED_MACH_GPIO_H
 	select NEED_RET_TO_USER
 	select PCI
 	select PLAT_IOP
@@ -472,7 +471,6 @@ config ARCH_IOP33X
 	select ARCH_REQUIRE_GPIOLIB
 	select CPU_XSCALE
 	select GPIO_IOP
-	select NEED_MACH_GPIO_H
 	select NEED_RET_TO_USER
 	select PCI
 	select PLAT_IOP
diff --git a/arch/arm/include/asm/hardware/iop3xx-gpio.h b/arch/arm/include/asm/hardware/iop3xx-gpio.h
deleted file mode 100644
index e2a097078a06..000000000000
--- a/arch/arm/include/asm/hardware/iop3xx-gpio.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * arch/arm/include/asm/hardware/iop3xx-gpio.h
- *
- * IOP3xx GPIO wrappers
- *
- * Copyright (c) 2008 Arnaud Patard <arnaud.patard@rtp-net.org>
- * Based on IXP4XX gpio.h file
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#ifndef __ASM_ARM_HARDWARE_IOP3XX_GPIO_H
-#define __ASM_ARM_HARDWARE_IOP3XX_GPIO_H
-
-#include <mach/hardware.h>
-#include <asm-generic/gpio.h>
-
-#endif
-
diff --git a/arch/arm/include/asm/hardware/iop3xx.h b/arch/arm/include/asm/hardware/iop3xx.h
index 6af9c2841fcb..2594a95ff19a 100644
--- a/arch/arm/include/asm/hardware/iop3xx.h
+++ b/arch/arm/include/asm/hardware/iop3xx.h
@@ -18,10 +18,6 @@
 /*
  * IOP3XX GPIO handling
  */
-#define GPIO_IN			0
-#define GPIO_OUT		1
-#define GPIO_LOW		0
-#define GPIO_HIGH		1
 #define IOP3XX_GPIO_LINE(x)	(x)
 
 #ifndef __ASSEMBLY__
@@ -165,11 +161,6 @@ extern int iop3xx_get_init_atu(void);
 /* PERCR0 DOESN'T EXIST - index from 1! */
 #define IOP3XX_PERCR0		(volatile u32 *)IOP3XX_REG_ADDR(0x0710)
 
-/* General Purpose I/O  */
-#define IOP3XX_GPOE		(volatile u32 *)IOP3XX_GPIO_REG(0x0000)
-#define IOP3XX_GPID		(volatile u32 *)IOP3XX_GPIO_REG(0x0004)
-#define IOP3XX_GPOD		(volatile u32 *)IOP3XX_GPIO_REG(0x0008)
-
 /* Timers  */
 #define IOP3XX_TU_TMR0		(volatile u32 *)IOP3XX_TIMER_REG(0x0000)
 #define IOP3XX_TU_TMR1		(volatile u32 *)IOP3XX_TIMER_REG(0x0004)
diff --git a/arch/arm/mach-iop32x/em7210.c b/arch/arm/mach-iop32x/em7210.c
index 31fbb6c61b25..177cd073a83b 100644
--- a/arch/arm/mach-iop32x/em7210.c
+++ b/arch/arm/mach-iop32x/em7210.c
@@ -32,6 +32,7 @@
 #include <asm/mach/time.h>
 #include <asm/mach-types.h>
 #include <mach/time.h>
+#include "gpio-iop32x.h"
 
 static void __init em7210_timer_init(void)
 {
@@ -183,6 +184,7 @@ void em7210_power_off(void)
 
 static void __init em7210_init_machine(void)
 {
+	register_iop32x_gpio();
 	platform_device_register(&em7210_serial_device);
 	platform_device_register(&iop3xx_i2c0_device);
 	platform_device_register(&iop3xx_i2c1_device);
diff --git a/arch/arm/mach-iop32x/glantank.c b/arch/arm/mach-iop32x/glantank.c
index ac304705fe68..547b2342d61a 100644
--- a/arch/arm/mach-iop32x/glantank.c
+++ b/arch/arm/mach-iop32x/glantank.c
@@ -34,6 +34,7 @@
 #include <asm/mach-types.h>
 #include <asm/page.h>
 #include <mach/time.h>
+#include "gpio-iop32x.h"
 
 /*
  * GLAN Tank timer tick configuration.
@@ -187,6 +188,7 @@ static void glantank_power_off(void)
 
 static void __init glantank_init_machine(void)
 {
+	register_iop32x_gpio();
 	platform_device_register(&iop3xx_i2c0_device);
 	platform_device_register(&iop3xx_i2c1_device);
 	platform_device_register(&glantank_flash_device);
diff --git a/arch/arm/mach-iop32x/gpio-iop32x.h b/arch/arm/mach-iop32x/gpio-iop32x.h
new file mode 100644
index 000000000000..b8710a63a13e
--- /dev/null
+++ b/arch/arm/mach-iop32x/gpio-iop32x.h
@@ -0,0 +1,10 @@
+static struct resource iop32x_gpio_res[] = {
+	DEFINE_RES_MEM((IOP3XX_PERIPHERAL_VIRT_BASE + 0x07c4), 0x10),
+};
+
+static inline void register_iop32x_gpio(void)
+{
+	platform_device_register_simple("gpio-iop", 0,
+					iop32x_gpio_res,
+					ARRAY_SIZE(iop32x_gpio_res));
+}
diff --git a/arch/arm/mach-iop32x/include/mach/gpio.h b/arch/arm/mach-iop32x/include/mach/gpio.h
deleted file mode 100644
index 708f4ec9db1d..000000000000
--- a/arch/arm/mach-iop32x/include/mach/gpio.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __ASM_ARCH_IOP32X_GPIO_H
-#define __ASM_ARCH_IOP32X_GPIO_H
-
-#include <asm/hardware/iop3xx-gpio.h>
-
-#endif
diff --git a/arch/arm/mach-iop32x/include/mach/iop32x.h b/arch/arm/mach-iop32x/include/mach/iop32x.h
index 941f363aca56..56ec864ec313 100644
--- a/arch/arm/mach-iop32x/include/mach/iop32x.h
+++ b/arch/arm/mach-iop32x/include/mach/iop32x.h
@@ -19,7 +19,6 @@
  * Peripherals that are shared between the iop32x and iop33x but
  * located at different addresses.
  */
-#define IOP3XX_GPIO_REG(reg)	(IOP3XX_PERIPHERAL_VIRT_BASE + 0x07c4 + (reg))
 #define IOP3XX_TIMER_REG(reg)	(IOP3XX_PERIPHERAL_VIRT_BASE + 0x07e0 + (reg))
 
 #include <asm/hardware/iop3xx.h>
diff --git a/arch/arm/mach-iop32x/iq31244.c b/arch/arm/mach-iop32x/iq31244.c
index f2cd2966212d..0e1392b20d18 100644
--- a/arch/arm/mach-iop32x/iq31244.c
+++ b/arch/arm/mach-iop32x/iq31244.c
@@ -37,6 +37,7 @@
 #include <asm/page.h>
 #include <asm/pgtable.h>
 #include <mach/time.h>
+#include "gpio-iop32x.h"
 
 /*
  * Until March of 2007 iq31244 platforms and ep80219 platforms shared the
@@ -283,6 +284,7 @@ void ep80219_power_off(void)
 
 static void __init iq31244_init_machine(void)
 {
+	register_iop32x_gpio();
 	platform_device_register(&iop3xx_i2c0_device);
 	platform_device_register(&iop3xx_i2c1_device);
 	platform_device_register(&iq31244_flash_device);
diff --git a/arch/arm/mach-iop32x/iq80321.c b/arch/arm/mach-iop32x/iq80321.c
index 015435de90dd..66782ff1f46a 100644
--- a/arch/arm/mach-iop32x/iq80321.c
+++ b/arch/arm/mach-iop32x/iq80321.c
@@ -33,6 +33,7 @@
 #include <asm/page.h>
 #include <asm/pgtable.h>
 #include <mach/time.h>
+#include "gpio-iop32x.h"
 
 /*
  * IQ80321 timer tick configuration.
@@ -170,6 +171,7 @@ static struct platform_device iq80321_serial_device = {
 
 static void __init iq80321_init_machine(void)
 {
+	register_iop32x_gpio();
 	platform_device_register(&iop3xx_i2c0_device);
 	platform_device_register(&iop3xx_i2c1_device);
 	platform_device_register(&iq80321_flash_device);
diff --git a/arch/arm/mach-iop32x/n2100.c b/arch/arm/mach-iop32x/n2100.c
index bc40a97050a1..c1cd80ecc219 100644
--- a/arch/arm/mach-iop32x/n2100.c
+++ b/arch/arm/mach-iop32x/n2100.c
@@ -41,6 +41,7 @@
 #include <asm/page.h>
 #include <asm/pgtable.h>
 #include <mach/time.h>
+#include "gpio-iop32x.h"
 
 /*
  * N2100 timer tick configuration.
@@ -345,6 +346,7 @@ device_initcall(n2100_request_gpios);
 
 static void __init n2100_init_machine(void)
 {
+	register_iop32x_gpio();
 	platform_device_register(&iop3xx_i2c0_device);
 	platform_device_register(&n2100_flash_device);
 	platform_device_register(&n2100_serial_device);
diff --git a/arch/arm/mach-iop33x/include/mach/gpio.h b/arch/arm/mach-iop33x/include/mach/gpio.h
deleted file mode 100644
index ddd55bba9bb9..000000000000
--- a/arch/arm/mach-iop33x/include/mach/gpio.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __ASM_ARCH_IOP33X_GPIO_H
-#define __ASM_ARCH_IOP33X_GPIO_H
-
-#include <asm/hardware/iop3xx-gpio.h>
-
-#endif
diff --git a/arch/arm/mach-iop33x/include/mach/iop33x.h b/arch/arm/mach-iop33x/include/mach/iop33x.h
index a89c0a234bff..c95122653094 100644
--- a/arch/arm/mach-iop33x/include/mach/iop33x.h
+++ b/arch/arm/mach-iop33x/include/mach/iop33x.h
@@ -18,7 +18,6 @@
  * Peripherals that are shared between the iop32x and iop33x but
  * located at different addresses.
  */
-#define IOP3XX_GPIO_REG(reg)	(IOP3XX_PERIPHERAL_VIRT_BASE + 0x1780 + (reg))
 #define IOP3XX_TIMER_REG(reg)	(IOP3XX_PERIPHERAL_VIRT_BASE + 0x07d0 + (reg))
 
 #include <asm/hardware/iop3xx.h>
diff --git a/arch/arm/mach-iop33x/iq80331.c b/arch/arm/mach-iop33x/iq80331.c
index c43304a10fa7..25741c4c92de 100644
--- a/arch/arm/mach-iop33x/iq80331.c
+++ b/arch/arm/mach-iop33x/iq80331.c
@@ -122,8 +122,15 @@ static struct platform_device iq80331_flash_device = {
 	.resource	= &iq80331_flash_resource,
 };
 
+static struct resource iq80331_gpio_res[] = {
+	DEFINE_RES_MEM((IOP3XX_PERIPHERAL_VIRT_BASE + 0x1780), 0x10),
+};
+
 static void __init iq80331_init_machine(void)
 {
+	platform_device_register_simple("gpio-iop", 0,
+					iq80331_gpio_res,
+					ARRAY_SIZE(iq80331_gpio_res));
 	platform_device_register(&iop3xx_i2c0_device);
 	platform_device_register(&iop3xx_i2c1_device);
 	platform_device_register(&iop33x_uart0_device);
diff --git a/arch/arm/mach-iop33x/iq80332.c b/arch/arm/mach-iop33x/iq80332.c
index 8192987e78e5..a3b56e1c2ad4 100644
--- a/arch/arm/mach-iop33x/iq80332.c
+++ b/arch/arm/mach-iop33x/iq80332.c
@@ -122,8 +122,15 @@ static struct platform_device iq80332_flash_device = {
 	.resource	= &iq80332_flash_resource,
 };
 
+static struct resource iq80332_gpio_res[] = {
+	DEFINE_RES_MEM((IOP3XX_PERIPHERAL_VIRT_BASE + 0x1780), 0x10),
+};
+
 static void __init iq80332_init_machine(void)
 {
+	platform_device_register_simple("gpio-iop", 0,
+					iq80332_gpio_res,
+					ARRAY_SIZE(iq80332_gpio_res));
 	platform_device_register(&iop3xx_i2c0_device);
 	platform_device_register(&iop3xx_i2c1_device);
 	platform_device_register(&iop33x_uart0_device);
diff --git a/drivers/gpio/gpio-iop.c b/drivers/gpio/gpio-iop.c
index 17cc7010cd04..24a86b05dc8c 100644
--- a/drivers/gpio/gpio-iop.c
+++ b/drivers/gpio/gpio-iop.c
@@ -16,9 +16,23 @@
 #include <linux/errno.h>
 #include <linux/gpio.h>
 #include <linux/export.h>
+#include <linux/platform_device.h>
 
 #define IOP3XX_N_GPIOS	8
 
+#define GPIO_IN			0
+#define GPIO_OUT		1
+#define GPIO_LOW		0
+#define GPIO_HIGH		1
+
+/* Memory base offset */
+static void __iomem *base;
+
+#define IOP3XX_GPIO_REG(reg)	(base + (reg))
+#define IOP3XX_GPOE		(volatile u32 *)IOP3XX_GPIO_REG(0x0000)
+#define IOP3XX_GPID		(volatile u32 *)IOP3XX_GPIO_REG(0x0004)
+#define IOP3XX_GPOD		(volatile u32 *)IOP3XX_GPIO_REG(0x0008)
+
 static void gpio_line_config(int line, int direction)
 {
 	unsigned long flags;
@@ -83,8 +97,26 @@ static struct gpio_chip iop3xx_chip = {
 	.ngpio			= IOP3XX_N_GPIOS,
 };
 
-static int __init iop3xx_gpio_setup(void)
+static int iop3xx_gpio_probe(struct platform_device *pdev)
 {
+	struct resource *res;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	base = (void *) res->start;
+
 	return gpiochip_add(&iop3xx_chip);
 }
-arch_initcall(iop3xx_gpio_setup);
+
+static struct platform_driver iop3xx_gpio_driver = {
+	.driver = {
+		.name = "gpio-iop",
+		.owner = THIS_MODULE,
+	},
+	.probe = iop3xx_gpio_probe,
+};
+
+static int __init iop3xx_gpio_init(void)
+{
+	return platform_driver_register(&iop3xx_gpio_driver);
+}
+arch_initcall(iop3xx_gpio_init);
-- 
cgit 


From e3f94b385748c10b735f392b69f39f33f02ca3a5 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Mon, 9 Sep 2013 16:54:32 +0200
Subject: gpio: iop: use readl/writel accessors

Use the standard 32bit I/O accessors instead of just assigning
addresses.

Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Mikael Pettersson <mikpe@it.uu.se>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-iop.c | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/drivers/gpio/gpio-iop.c b/drivers/gpio/gpio-iop.c
index 24a86b05dc8c..0d991d732467 100644
--- a/drivers/gpio/gpio-iop.c
+++ b/drivers/gpio/gpio-iop.c
@@ -17,6 +17,8 @@
 #include <linux/gpio.h>
 #include <linux/export.h>
 #include <linux/platform_device.h>
+#include <linux/bitops.h>
+#include <linux/io.h>
 
 #define IOP3XX_N_GPIOS	8
 
@@ -29,38 +31,44 @@
 static void __iomem *base;
 
 #define IOP3XX_GPIO_REG(reg)	(base + (reg))
-#define IOP3XX_GPOE		(volatile u32 *)IOP3XX_GPIO_REG(0x0000)
-#define IOP3XX_GPID		(volatile u32 *)IOP3XX_GPIO_REG(0x0004)
-#define IOP3XX_GPOD		(volatile u32 *)IOP3XX_GPIO_REG(0x0008)
+#define IOP3XX_GPOE		IOP3XX_GPIO_REG(0x0000)
+#define IOP3XX_GPID		IOP3XX_GPIO_REG(0x0004)
+#define IOP3XX_GPOD		IOP3XX_GPIO_REG(0x0008)
 
 static void gpio_line_config(int line, int direction)
 {
 	unsigned long flags;
+	u32 val;
 
 	local_irq_save(flags);
+	val = readl(IOP3XX_GPOE);
 	if (direction == GPIO_IN) {
-		*IOP3XX_GPOE |= 1 << line;
+		val |= BIT(line);
 	} else if (direction == GPIO_OUT) {
-		*IOP3XX_GPOE &= ~(1 << line);
+		val &= ~BIT(line);
 	}
+	writel(val, IOP3XX_GPOE);
 	local_irq_restore(flags);
 }
 
 static int gpio_line_get(int line)
 {
-	return !!(*IOP3XX_GPID & (1 << line));
+	return !!(readl(IOP3XX_GPID) & BIT(line));
 }
 
 static void gpio_line_set(int line, int value)
 {
 	unsigned long flags;
+	u32 val;
 
 	local_irq_save(flags);
+	val = readl(IOP3XX_GPOD);
 	if (value == GPIO_LOW) {
-		*IOP3XX_GPOD &= ~(1 << line);
+		val &= ~BIT(line);
 	} else if (value == GPIO_HIGH) {
-		*IOP3XX_GPOD |= 1 << line;
+		val |= BIT(line);
 	}
+	writel(val, IOP3XX_GPOD);
 	local_irq_restore(flags);
 }
 
-- 
cgit 


From e34ca9de0b3575fc7e94b1f520169fc7024c6dd2 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Mon, 9 Sep 2013 16:59:54 +0200
Subject: ARM: plat-iop: pass physical base for GPIO

This alters the IOP platforms to pass a physical base for their
GPIO blocks and alters the driver to remap it when probing
instead of relying on the virtual addresses to be used.

Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Mikael Pettersson <mikpe@it.uu.se>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-iop32x/gpio-iop32x.h | 2 +-
 arch/arm/mach-iop33x/iq80331.c     | 2 +-
 arch/arm/mach-iop33x/iq80332.c     | 2 +-
 drivers/gpio/gpio-iop.c            | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-iop32x/gpio-iop32x.h b/arch/arm/mach-iop32x/gpio-iop32x.h
index b8710a63a13e..3c7309c02029 100644
--- a/arch/arm/mach-iop32x/gpio-iop32x.h
+++ b/arch/arm/mach-iop32x/gpio-iop32x.h
@@ -1,5 +1,5 @@
 static struct resource iop32x_gpio_res[] = {
-	DEFINE_RES_MEM((IOP3XX_PERIPHERAL_VIRT_BASE + 0x07c4), 0x10),
+	DEFINE_RES_MEM((IOP3XX_PERIPHERAL_PHYS_BASE + 0x07c4), 0x10),
 };
 
 static inline void register_iop32x_gpio(void)
diff --git a/arch/arm/mach-iop33x/iq80331.c b/arch/arm/mach-iop33x/iq80331.c
index 25741c4c92de..e2cb65cfbe23 100644
--- a/arch/arm/mach-iop33x/iq80331.c
+++ b/arch/arm/mach-iop33x/iq80331.c
@@ -123,7 +123,7 @@ static struct platform_device iq80331_flash_device = {
 };
 
 static struct resource iq80331_gpio_res[] = {
-	DEFINE_RES_MEM((IOP3XX_PERIPHERAL_VIRT_BASE + 0x1780), 0x10),
+	DEFINE_RES_MEM((IOP3XX_PERIPHERAL_PHYS_BASE + 0x1780), 0x10),
 };
 
 static void __init iq80331_init_machine(void)
diff --git a/arch/arm/mach-iop33x/iq80332.c b/arch/arm/mach-iop33x/iq80332.c
index a3b56e1c2ad4..0b6269d94f89 100644
--- a/arch/arm/mach-iop33x/iq80332.c
+++ b/arch/arm/mach-iop33x/iq80332.c
@@ -123,7 +123,7 @@ static struct platform_device iq80332_flash_device = {
 };
 
 static struct resource iq80332_gpio_res[] = {
-	DEFINE_RES_MEM((IOP3XX_PERIPHERAL_VIRT_BASE + 0x1780), 0x10),
+	DEFINE_RES_MEM((IOP3XX_PERIPHERAL_PHYS_BASE + 0x1780), 0x10),
 };
 
 static void __init iq80332_init_machine(void)
diff --git a/drivers/gpio/gpio-iop.c b/drivers/gpio/gpio-iop.c
index 0d991d732467..c22a61be3a9c 100644
--- a/drivers/gpio/gpio-iop.c
+++ b/drivers/gpio/gpio-iop.c
@@ -110,7 +110,7 @@ static int iop3xx_gpio_probe(struct platform_device *pdev)
 	struct resource *res;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	base = (void *) res->start;
+	base = devm_ioremap_resource(&pdev->dev, res);
 
 	return gpiochip_add(&iop3xx_chip);
 }
-- 
cgit 


From 1dc94272117e35c1618516ffe5b129a7663c1d03 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 20 Sep 2013 23:14:18 +0200
Subject: gpio: bcm-kona: only use set_irq_flags() on ARM

As per the pattern from other GPIO drivers, use set_irq_flags()
on ARM only, use irq_set_noprobe() on other archs.

Also rename the argument "virq" to just "irq", this IRQ isn't
any more "virtual" than any other Linux IRQ number, we use
"hwirq" for the actual hw-numbers, "virq" is just bogus.

Reviewed-by: Markus Mayer <mmayer@broadcom.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-bcm-kona.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/drivers/gpio/gpio-bcm-kona.c b/drivers/gpio/gpio-bcm-kona.c
index f7d932ac64e6..c0751a8c2dee 100644
--- a/drivers/gpio/gpio-bcm-kona.c
+++ b/drivers/gpio/gpio-bcm-kona.c
@@ -468,18 +468,22 @@ MODULE_DEVICE_TABLE(of, bcm_kona_gpio_of_match);
  */
 static struct lock_class_key gpio_lock_class;
 
-static int bcm_kona_gpio_irq_map(struct irq_domain *d, unsigned int virq,
+static int bcm_kona_gpio_irq_map(struct irq_domain *d, unsigned int irq,
 				 irq_hw_number_t hwirq)
 {
 	int ret;
 
-	ret = irq_set_chip_data(virq, d->host_data);
+	ret = irq_set_chip_data(irq, d->host_data);
 	if (ret < 0)
 		return ret;
-	irq_set_lockdep_class(virq, &gpio_lock_class);
-	irq_set_chip_and_handler(virq, &bcm_gpio_irq_chip, handle_simple_irq);
-	irq_set_nested_thread(virq, 1);
-	set_irq_flags(virq, IRQF_VALID);
+	irq_set_lockdep_class(irq, &gpio_lock_class);
+	irq_set_chip_and_handler(irq, &bcm_gpio_irq_chip, handle_simple_irq);
+	irq_set_nested_thread(irq, 1);
+#ifdef CONFIG_ARM
+	set_irq_flags(irq, IRQF_VALID);
+#else
+	irq_set_noprobe(irq);
+#endif
 
 	return 0;
 }
@@ -598,7 +602,11 @@ static int bcm_kona_gpio_probe(struct platform_device *pdev)
 		irq_set_lockdep_class(irq, &gpio_lock_class);
 		irq_set_chip_and_handler(irq, &bcm_gpio_irq_chip,
 					 handle_simple_irq);
+#ifdef CONFIG_ARM
 		set_irq_flags(irq, IRQF_VALID);
+#else
+		irq_set_noprobe(irq);
+#endif
 	}
 	for (i = 0; i < kona_gpio->num_bank; i++) {
 		bank = &kona_gpio->banks[i];
-- 
cgit 


From 7525e87b468a1b2d8e3f0156e36acd8992af673c Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Thu, 8 Aug 2013 00:45:12 +0200
Subject: ARM: shmobile: marzen: Select DRM_RCAR_DU in defconfig

A R-Car DU DRM device is registered for the Marzen board, select the
corresponding driver in its defconfig.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/configs/marzen_defconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/configs/marzen_defconfig b/arch/arm/configs/marzen_defconfig
index 000e9205b2b9..5cc6360340b1 100644
--- a/arch/arm/configs/marzen_defconfig
+++ b/arch/arm/configs/marzen_defconfig
@@ -92,6 +92,8 @@ CONFIG_SOC_CAMERA=y
 CONFIG_VIDEO_RCAR_VIN=y
 # CONFIG_MEDIA_SUBDRV_AUTOSELECT is not set
 CONFIG_VIDEO_ADV7180=y
+CONFIG_DRM=y
+CONFIG_DRM_RCAR_DU=y
 CONFIG_USB=y
 CONFIG_USB_RCAR_PHY=y
 CONFIG_MMC=y
-- 
cgit 


From 57601184cefb36db8c1959d277918bdabb6b1c64 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Thu, 8 Aug 2013 00:47:57 +0200
Subject: ARM: shmobile: lager: Select DRM_RCAR_DU in defconfig

A R-Car DU DRM device is registered for the Lager board, select the
corresponding driver in its defconfig.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/configs/lager_defconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/configs/lager_defconfig b/arch/arm/configs/lager_defconfig
index e777ef22b801..35bff5e0d57a 100644
--- a/arch/arm/configs/lager_defconfig
+++ b/arch/arm/configs/lager_defconfig
@@ -89,6 +89,8 @@ CONFIG_THERMAL=y
 CONFIG_RCAR_THERMAL=y
 CONFIG_REGULATOR=y
 CONFIG_REGULATOR_FIXED_VOLTAGE=y
+CONFIG_DRM=y
+CONFIG_DRM_RCAR_DU=y
 # CONFIG_USB_SUPPORT is not set
 CONFIG_MMC=y
 CONFIG_MMC_SDHI=y
-- 
cgit 


From dca778f1e470494019e41e9eef073eb981a64380 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 26 Aug 2013 01:52:45 -0700
Subject: ARM: shmobile: bockw defconfig: add Sound support

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/configs/bockw_defconfig | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/configs/bockw_defconfig b/arch/arm/configs/bockw_defconfig
index e7e94948d194..b38cd107f82d 100644
--- a/arch/arm/configs/bockw_defconfig
+++ b/arch/arm/configs/bockw_defconfig
@@ -91,6 +91,10 @@ CONFIG_VIDEO_RCAR_VIN=y
 CONFIG_VIDEO_ML86V7667=y
 CONFIG_SPI=y
 CONFIG_SPI_SH_HSPI=y
+CONFIG_SOUND=y
+CONFIG_SND=y
+CONFIG_SND_SOC=y
+CONFIG_SND_SOC_RCAR=y
 CONFIG_USB=y
 CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
 CONFIG_USB_EHCI_HCD=y
-- 
cgit 


From 6bb2e347899b297eea26f2658eac8fdcd633fba5 Mon Sep 17 00:00:00 2001
From: Simon Horman <horms+renesas@verge.net.au>
Date: Wed, 4 Sep 2013 17:04:08 +0900
Subject: ARM: shmobile: Add koelsch defconfig

This is intended to be used until multi-arch is able to be
used for the koelsch board at which time a more generic configuration
will be used in place of this one.

This is based on the lager defconfig.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/configs/koelsch_defconfig | 54 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)
 create mode 100644 arch/arm/configs/koelsch_defconfig

diff --git a/arch/arm/configs/koelsch_defconfig b/arch/arm/configs/koelsch_defconfig
new file mode 100644
index 000000000000..825c16dee8a0
--- /dev/null
+++ b/arch/arm/configs/koelsch_defconfig
@@ -0,0 +1,54 @@
+CONFIG_SYSVIPC=y
+CONFIG_NO_HZ=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=16
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_EMBEDDED=y
+CONFIG_PERF_EVENTS=y
+CONFIG_SLAB=y
+# CONFIG_BLOCK is not set
+CONFIG_ARCH_SHMOBILE=y
+CONFIG_ARCH_R8A7791=y
+CONFIG_MACH_KOELSCH=y
+# CONFIG_SWP_EMULATE is not set
+CONFIG_CPU_BPREDICT_DISABLE=y
+CONFIG_PL310_ERRATA_588369=y
+CONFIG_ARM_ERRATA_754322=y
+CONFIG_SMP=y
+CONFIG_SCHED_MC=y
+CONFIG_NR_CPUS=8
+CONFIG_AEABI=y
+CONFIG_ZBOOT_ROM_TEXT=0x0
+CONFIG_ZBOOT_ROM_BSS=0x0
+CONFIG_ARM_APPENDED_DTB=y
+CONFIG_KEXEC=y
+CONFIG_AUTO_ZRELADDR=y
+CONFIG_VFP=y
+CONFIG_NEON=y
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+CONFIG_PM_RUNTIME=y
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_LEGACY_PTYS is not set
+CONFIG_SERIAL_SH_SCI=y
+CONFIG_SERIAL_SH_SCI_NR_UARTS=20
+CONFIG_SERIAL_SH_SCI_CONSOLE=y
+# CONFIG_HWMON is not set
+CONFIG_THERMAL=y
+CONFIG_RCAR_THERMAL=y
+# CONFIG_HID is not set
+# CONFIG_USB_SUPPORT is not set
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+# CONFIG_IOMMU_SUPPORT is not set
+# CONFIG_DNOTIFY is not set
+# CONFIG_INOTIFY_USER is not set
+CONFIG_TMPFS=y
+CONFIG_CONFIGFS_FS=y
+# CONFIG_MISC_FILESYSTEMS is not set
+# CONFIG_ENABLE_WARN_DEPRECATED is not set
+# CONFIG_ENABLE_MUST_CHECK is not set
+# CONFIG_ARM_UNWIND is not set
-- 
cgit 


From 5c4dfcd663b6e96cc20f02dc2c7c315749ea1bc1 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Thu, 8 Aug 2013 07:13:30 +0900
Subject: ARM: shmobile: Introduce shmobile_smp_cpu_disable()

Introduce the shared CPU Hotplug function shmobile_smp_cpu_disable()
for mach-shmobile. It is useful for the case when all CPUs may be
hotplugged, including CPU 0.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/include/mach/common.h | 1 +
 arch/arm/mach-shmobile/platsmp.c             | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/arch/arm/mach-shmobile/include/mach/common.h b/arch/arm/mach-shmobile/include/mach/common.h
index 7b938681e756..1ed155eb3e92 100644
--- a/arch/arm/mach-shmobile/include/mach/common.h
+++ b/arch/arm/mach-shmobile/include/mach/common.h
@@ -13,6 +13,7 @@ extern void shmobile_smp_boot(void);
 extern void shmobile_smp_sleep(void);
 extern void shmobile_smp_hook(unsigned int cpu, unsigned long fn,
 			      unsigned long arg);
+extern int shmobile_smp_cpu_disable(unsigned int cpu);
 extern void shmobile_boot_scu(void);
 extern void shmobile_smp_scu_prepare_cpus(unsigned int max_cpus);
 extern int shmobile_smp_scu_boot_secondary(unsigned int cpu,
diff --git a/arch/arm/mach-shmobile/platsmp.c b/arch/arm/mach-shmobile/platsmp.c
index d4ae616bcedb..3741562156ed 100644
--- a/arch/arm/mach-shmobile/platsmp.c
+++ b/arch/arm/mach-shmobile/platsmp.c
@@ -44,3 +44,10 @@ void shmobile_smp_hook(unsigned int cpu, unsigned long fn, unsigned long arg)
 	shmobile_smp_arg[cpu] = arg;
 	flush_cache_all();
 }
+
+#ifdef CONFIG_HOTPLUG_CPU
+int shmobile_smp_cpu_disable(unsigned int cpu)
+{
+	return 0; /* Hotplug of any CPU is supported */
+}
+#endif
-- 
cgit 


From a3b142a1a08af543473ae726e5d96a969c5b02b5 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Thu, 8 Aug 2013 07:13:39 +0900
Subject: ARM: shmobile: Use shmobile_smp_cpu_disable() on sh73a0

Use shmobile_smp_cpu_disable() on sh73a0 since it
allows CPU Hotplug of any CPU.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/smp-sh73a0.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/arch/arm/mach-shmobile/smp-sh73a0.c b/arch/arm/mach-shmobile/smp-sh73a0.c
index 0baa24443793..9a30a3fc7e7d 100644
--- a/arch/arm/mach-shmobile/smp-sh73a0.c
+++ b/arch/arm/mach-shmobile/smp-sh73a0.c
@@ -71,18 +71,11 @@ static void __init sh73a0_smp_prepare_cpus(unsigned int max_cpus)
 	shmobile_smp_scu_prepare_cpus(max_cpus);
 }
 
-#ifdef CONFIG_HOTPLUG_CPU
-static int sh73a0_cpu_disable(unsigned int cpu)
-{
-	return 0; /* CPU0 and CPU1 supported */
-}
-#endif /* CONFIG_HOTPLUG_CPU */
-
 struct smp_operations sh73a0_smp_ops __initdata = {
 	.smp_prepare_cpus	= sh73a0_smp_prepare_cpus,
 	.smp_boot_secondary	= sh73a0_boot_secondary,
 #ifdef CONFIG_HOTPLUG_CPU
-	.cpu_disable		= sh73a0_cpu_disable,
+	.cpu_disable		= shmobile_smp_cpu_disable,
 	.cpu_die		= shmobile_smp_scu_cpu_die,
 	.cpu_kill		= shmobile_smp_scu_cpu_kill,
 #endif
-- 
cgit 


From c4e1e64d2b6a921a57629ede635f81f5d2882543 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Thu, 8 Aug 2013 07:13:49 +0900
Subject: ARM: shmobile: Remove unused shmobile_smp_init_cpus()

Remove shmobile_smp_init_cpus() since all SMP platforms in
mach-shmobile now rely on DT for CPU core description instead
of for instance determining number of cores from the SCU.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/include/mach/common.h |  1 -
 arch/arm/mach-shmobile/platsmp.c             | 15 ---------------
 2 files changed, 16 deletions(-)

diff --git a/arch/arm/mach-shmobile/include/mach/common.h b/arch/arm/mach-shmobile/include/mach/common.h
index 1ed155eb3e92..26eaff1429bf 100644
--- a/arch/arm/mach-shmobile/include/mach/common.h
+++ b/arch/arm/mach-shmobile/include/mach/common.h
@@ -40,7 +40,6 @@ static inline int shmobile_cpuidle_init(void) { return 0; }
 #endif
 
 extern void __iomem *shmobile_scu_base;
-extern void shmobile_smp_init_cpus(unsigned int ncores);
 
 static inline void __init shmobile_init_late(void)
 {
diff --git a/arch/arm/mach-shmobile/platsmp.c b/arch/arm/mach-shmobile/platsmp.c
index 3741562156ed..9ebc246b8d7d 100644
--- a/arch/arm/mach-shmobile/platsmp.c
+++ b/arch/arm/mach-shmobile/platsmp.c
@@ -11,25 +11,10 @@
  * published by the Free Software Foundation.
  */
 #include <linux/init.h>
-#include <linux/smp.h>
 #include <asm/cacheflush.h>
 #include <asm/smp_plat.h>
 #include <mach/common.h>
 
-void __init shmobile_smp_init_cpus(unsigned int ncores)
-{
-	unsigned int i;
-
-	if (ncores > nr_cpu_ids) {
-		pr_warn("SMP: %u cores greater than maximum (%u), clipping\n",
-			ncores, nr_cpu_ids);
-		ncores = nr_cpu_ids;
-	}
-
-	for (i = 0; i < ncores; i++)
-		set_cpu_possible(i, true);
-}
-
 extern unsigned long shmobile_smp_fn[];
 extern unsigned long shmobile_smp_arg[];
 extern unsigned long shmobile_smp_mpidr[];
-- 
cgit 


From 87a08ca0f7f99b3136c763377c547a89cf6d0996 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Thu, 8 Aug 2013 07:13:58 +0900
Subject: ARM: shmobile: Expose shmobile_invalidate_start()

Expose shmobile_invalidate_start() in common.h for
mach-shmobile. This function will be used for boot of
secondary processors on future non-SCU SMP platforms.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/include/mach/common.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-shmobile/include/mach/common.h b/arch/arm/mach-shmobile/include/mach/common.h
index 26eaff1429bf..a9df8f3bfda7 100644
--- a/arch/arm/mach-shmobile/include/mach/common.h
+++ b/arch/arm/mach-shmobile/include/mach/common.h
@@ -14,6 +14,7 @@ extern void shmobile_smp_sleep(void);
 extern void shmobile_smp_hook(unsigned int cpu, unsigned long fn,
 			      unsigned long arg);
 extern int shmobile_smp_cpu_disable(unsigned int cpu);
+extern void shmobile_invalidate_start(void);
 extern void shmobile_boot_scu(void);
 extern void shmobile_smp_scu_prepare_cpus(unsigned int max_cpus);
 extern int shmobile_smp_scu_boot_secondary(unsigned int cpu,
-- 
cgit 


From a84a5ab73f77a5dd4f09f0af33f09d8d751d0cc7 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Thu, 8 Aug 2013 07:14:07 +0900
Subject: ARM: shmobile: Introduce shmobile_boot_size

Introduce shmobile_boot_size that can be used by
future SMP code to determine the size of the boot
code that needs to be copied to internal SRAM.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/headsmp.S             | 3 +++
 arch/arm/mach-shmobile/include/mach/common.h | 1 +
 2 files changed, 4 insertions(+)

diff --git a/arch/arm/mach-shmobile/headsmp.S b/arch/arm/mach-shmobile/headsmp.S
index f93751caf5cb..e5be5c88644b 100644
--- a/arch/arm/mach-shmobile/headsmp.S
+++ b/arch/arm/mach-shmobile/headsmp.S
@@ -40,6 +40,9 @@ shmobile_boot_fn:
 	.globl	shmobile_boot_arg
 shmobile_boot_arg:
 2:	.space	4
+	.globl	shmobile_boot_size
+shmobile_boot_size:
+	.long	. - shmobile_boot_vector
 
 /*
  * Per-CPU SMP boot function/argument selection code based on MPIDR
diff --git a/arch/arm/mach-shmobile/include/mach/common.h b/arch/arm/mach-shmobile/include/mach/common.h
index a9df8f3bfda7..cfe397716fd1 100644
--- a/arch/arm/mach-shmobile/include/mach/common.h
+++ b/arch/arm/mach-shmobile/include/mach/common.h
@@ -9,6 +9,7 @@ extern void shmobile_setup_console(void);
 extern void shmobile_boot_vector(void);
 extern unsigned long shmobile_boot_fn;
 extern unsigned long shmobile_boot_arg;
+extern unsigned long shmobile_boot_size;
 extern void shmobile_smp_boot(void);
 extern void shmobile_smp_sleep(void);
 extern void shmobile_smp_hook(unsigned int cpu, unsigned long fn,
-- 
cgit 


From baee539915e9e89bdebb369229bc0684c86feac2 Mon Sep 17 00:00:00 2001
From: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Date: Thu, 19 Sep 2013 07:24:00 +0100
Subject: input: ti_am335x_tsc: Enable shared IRQ for TSC

Enable shared IRQ to allow ADC to share IRQ line from
parent MFD core. Only FIFO0 IRQs are for TSC and handled
on the TSC side.

Step mask would be updated from cached variable only previously.
In rare cases when both TSC and ADC are used, the cached
variable gets mixed up.
The step mask is written with the required mask every time.

Rachna Patil (TI) laid ground work for shared IRQ.

Signed-off-by: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/input/touchscreen/ti_am335x_tsc.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c
index e1c5300cacfc..24e625c0b531 100644
--- a/drivers/input/touchscreen/ti_am335x_tsc.c
+++ b/drivers/input/touchscreen/ti_am335x_tsc.c
@@ -52,6 +52,7 @@ struct titsc {
 	u32			config_inp[4];
 	u32			bit_xp, bit_xn, bit_yp, bit_yn;
 	u32			inp_xp, inp_xn, inp_yp, inp_yn;
+	u32			step_mask;
 };
 
 static unsigned int titsc_readl(struct titsc *ts, unsigned int reg)
@@ -196,7 +197,8 @@ static void titsc_step_config(struct titsc *ts_dev)
 
 	/* The steps1 … end and bit 0 for TS_Charge */
 	stepenable = (1 << (end_step + 2)) - 1;
-	am335x_tsc_se_set(ts_dev->mfd_tscadc, stepenable);
+	ts_dev->step_mask = stepenable;
+	am335x_tsc_se_set(ts_dev->mfd_tscadc, ts_dev->step_mask);
 }
 
 static void titsc_read_coordinates(struct titsc *ts_dev,
@@ -260,6 +262,10 @@ static irqreturn_t titsc_irq(int irq, void *dev)
 	unsigned int fsm;
 
 	status = titsc_readl(ts_dev, REG_IRQSTATUS);
+	/*
+	 * ADC and touchscreen share the IRQ line.
+	 * FIFO1 interrupts are used by ADC. Handle FIFO0 IRQs here only
+	 */
 	if (status & IRQENB_FIFO0THRES) {
 
 		titsc_read_coordinates(ts_dev, &x, &y, &z1, &z2);
@@ -316,7 +322,7 @@ static irqreturn_t titsc_irq(int irq, void *dev)
 
 	if (irqclr) {
 		titsc_writel(ts_dev, REG_IRQSTATUS, irqclr);
-		am335x_tsc_se_update(ts_dev->mfd_tscadc);
+		am335x_tsc_se_set(ts_dev->mfd_tscadc, ts_dev->step_mask);
 		return IRQ_HANDLED;
 	}
 	return IRQ_NONE;
@@ -389,7 +395,7 @@ static int titsc_probe(struct platform_device *pdev)
 	}
 
 	err = request_irq(ts_dev->irq, titsc_irq,
-			  0, pdev->dev.driver->name, ts_dev);
+			  IRQF_SHARED, pdev->dev.driver->name, ts_dev);
 	if (err) {
 		dev_err(&pdev->dev, "failed to allocate irq.\n");
 		goto err_free_mem;
-- 
cgit 


From 0f6fc7d56fe56aad5410fdaa7cebbb918580a33c Mon Sep 17 00:00:00 2001
From: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Date: Thu, 19 Sep 2013 07:24:00 +0100
Subject: iio: ti_am335x_adc: optimize memory usage

12 bit ADC data is stored in 32 bits of storage.
Change from u32 to u16 to reduce wasted memory.

Signed-off-by: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ti_am335x_adc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index a952538a1a8b..ebe93eba3ec8 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -122,7 +122,7 @@ static int tiadc_channel_init(struct iio_dev *indio_dev, int channels)
 		chan->datasheet_name = chan_name_ain[chan->channel];
 		chan->scan_type.sign = 'u';
 		chan->scan_type.realbits = 12;
-		chan->scan_type.storagebits = 32;
+		chan->scan_type.storagebits = 16;
 	}
 
 	indio_dev->channels = chan_array;
@@ -186,7 +186,7 @@ static int tiadc_read_raw(struct iio_dev *indio_dev,
 		if (stepid == map_val) {
 			read = read & FIFOREAD_DATA_MASK;
 			found = true;
-			*val = read;
+			*val = (u16) read;
 		}
 	}
 
-- 
cgit 


From 84aac6c79bfdcfbcd8541c814b365c3001cdf5e6 Mon Sep 17 00:00:00 2001
From: Jean-Francois Moine <moinejf@free.fr>
Date: Sat, 21 Sep 2013 12:00:36 +0200
Subject: ASoC: kirkwood: fix loss of external clock at probe time

At probe time, when the clock driver is not yet initialized, the
external clock of the kirkwood sound device will not be usable.

This patch fixes this problem defering the device probe.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/kirkwood/kirkwood-i2s.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sound/soc/kirkwood/kirkwood-i2s.c b/sound/soc/kirkwood/kirkwood-i2s.c
index 0f3d73d4ef48..3e59af983527 100644
--- a/sound/soc/kirkwood/kirkwood-i2s.c
+++ b/sound/soc/kirkwood/kirkwood-i2s.c
@@ -496,7 +496,10 @@ static int kirkwood_i2s_dev_probe(struct platform_device *pdev)
 		return err;
 
 	priv->extclk = devm_clk_get(&pdev->dev, "extclk");
-	if (!IS_ERR(priv->extclk)) {
+	if (IS_ERR(priv->extclk)) {
+		if (PTR_ERR(priv->extclk) == -EPROBE_DEFER)
+			return -EPROBE_DEFER;
+	} else {
 		if (priv->extclk == priv->clk) {
 			devm_clk_put(&pdev->dev, priv->extclk);
 			priv->extclk = ERR_PTR(-EINVAL);
-- 
cgit 


From 2485602f1af209aaef3f394ac8336a67cb8742aa Mon Sep 17 00:00:00 2001
From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Sun, 18 Aug 2013 22:41:37 +0200
Subject: can: add explicit copyrights to can headers
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

These files are copied to the source code of user space applications (in
this case can-utils) and so it makes sense to mention explicitly their
copyright. I added the terms of C code that was introduced in the same
commit as these headers.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Oliver Hartkopp <socketcan@hartkopp.net>
Acked-by: Urs Thuermann <urs.thuermann@volkswagen.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 include/uapi/linux/can/bcm.h   | 32 ++++++++++++++++++++++++++++++++
 include/uapi/linux/can/error.h | 32 ++++++++++++++++++++++++++++++++
 include/uapi/linux/can/gw.h    | 32 ++++++++++++++++++++++++++++++++
 include/uapi/linux/can/raw.h   | 32 ++++++++++++++++++++++++++++++++
 4 files changed, 128 insertions(+)

diff --git a/include/uapi/linux/can/bcm.h b/include/uapi/linux/can/bcm.h
index 3ebe387fea4d..382251a1d214 100644
--- a/include/uapi/linux/can/bcm.h
+++ b/include/uapi/linux/can/bcm.h
@@ -7,6 +7,38 @@
  * Copyright (c) 2002-2007 Volkswagen Group Electronic Research
  * All rights reserved.
  *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Volkswagen nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * Alternatively, provided that this notice is retained in full, this
+ * software may be distributed under the terms of the GNU General
+ * Public License ("GPL") version 2, in which case the provisions of the
+ * GPL apply INSTEAD OF those given above.
+ *
+ * The provided data structures and external interfaces from this code
+ * are not restricted to be used by modules with a GPL compatible license.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
  */
 
 #ifndef CAN_BCM_H
diff --git a/include/uapi/linux/can/error.h b/include/uapi/linux/can/error.h
index 7b7148bded71..b63204545320 100644
--- a/include/uapi/linux/can/error.h
+++ b/include/uapi/linux/can/error.h
@@ -7,6 +7,38 @@
  * Copyright (c) 2002-2007 Volkswagen Group Electronic Research
  * All rights reserved.
  *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Volkswagen nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * Alternatively, provided that this notice is retained in full, this
+ * software may be distributed under the terms of the GNU General
+ * Public License ("GPL") version 2, in which case the provisions of the
+ * GPL apply INSTEAD OF those given above.
+ *
+ * The provided data structures and external interfaces from this code
+ * are not restricted to be used by modules with a GPL compatible license.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
  */
 
 #ifndef CAN_ERROR_H
diff --git a/include/uapi/linux/can/gw.h b/include/uapi/linux/can/gw.h
index 4e27c82b564a..844c8964bdfe 100644
--- a/include/uapi/linux/can/gw.h
+++ b/include/uapi/linux/can/gw.h
@@ -7,6 +7,38 @@
  * Copyright (c) 2011 Volkswagen Group Electronic Research
  * All rights reserved.
  *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Volkswagen nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * Alternatively, provided that this notice is retained in full, this
+ * software may be distributed under the terms of the GNU General
+ * Public License ("GPL") version 2, in which case the provisions of the
+ * GPL apply INSTEAD OF those given above.
+ *
+ * The provided data structures and external interfaces from this code
+ * are not restricted to be used by modules with a GPL compatible license.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
  */
 
 #ifndef CAN_GW_H
diff --git a/include/uapi/linux/can/raw.h b/include/uapi/linux/can/raw.h
index a814062b0719..c7d8c334e0ce 100644
--- a/include/uapi/linux/can/raw.h
+++ b/include/uapi/linux/can/raw.h
@@ -8,6 +8,38 @@
  * Copyright (c) 2002-2007 Volkswagen Group Electronic Research
  * All rights reserved.
  *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of Volkswagen nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * Alternatively, provided that this notice is retained in full, this
+ * software may be distributed under the terms of the GNU General
+ * Public License ("GPL") version 2, in which case the provisions of the
+ * GPL apply INSTEAD OF those given above.
+ *
+ * The provided data structures and external interfaces from this code
+ * are not restricted to be used by modules with a GPL compatible license.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
  */
 
 #ifndef CAN_RAW_H
-- 
cgit 


From 1c2da13c21a14e9db99c701412ac9069d5b91cf5 Mon Sep 17 00:00:00 2001
From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Sat, 7 Sep 2013 21:34:38 +0200
Subject: can: add explicit copyrights to can's netlink header
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This file is copied to the source code of user space applications (in
this case can-utils) and so it makes sense to mention explicitly their
copyright.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 include/uapi/linux/can/netlink.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/uapi/linux/can/netlink.h b/include/uapi/linux/can/netlink.h
index 14966ddb7df1..df944ed206a8 100644
--- a/include/uapi/linux/can/netlink.h
+++ b/include/uapi/linux/can/netlink.h
@@ -5,6 +5,14 @@
  *
  * Copyright (c) 2009 Wolfgang Grandegger <wg@grandegger.com>
  *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the version 2 of the GNU General Public License
+ * as published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
  */
 
 #ifndef CAN_NETLINK_H
-- 
cgit 


From 6cbdb91821afecc05dfd591f26c8e247b8e6ac56 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 17:40:09 +0900
Subject: can: at91_can: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/at91_can.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/at91_can.c b/drivers/net/can/at91_can.c
index 3b1ff6148702..64f2efaf7638 100644
--- a/drivers/net/can/at91_can.c
+++ b/drivers/net/can/at91_can.c
@@ -1347,7 +1347,7 @@ static int at91_can_probe(struct platform_device *pdev)
 	priv->reg_base = addr;
 	priv->devtype_data = *devtype_data;
 	priv->clk = clk;
-	priv->pdata = pdev->dev.platform_data;
+	priv->pdata = dev_get_platdata(&pdev->dev);
 	priv->mb0_id = 0x7ff;
 
 	netif_napi_add(dev, &priv->napi, at91_poll, get_mb_rx_num(priv));
-- 
cgit 


From 321165c3e703db177fb3324939fc6c3872d22fce Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 17:40:42 +0900
Subject: can: bfin_can: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/bfin_can.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/bfin_can.c b/drivers/net/can/bfin_can.c
index a2700d25ff0e..8a0b515b33ea 100644
--- a/drivers/net/can/bfin_can.c
+++ b/drivers/net/can/bfin_can.c
@@ -539,7 +539,7 @@ static int bfin_can_probe(struct platform_device *pdev)
 	struct resource *res_mem, *rx_irq, *tx_irq, *err_irq;
 	unsigned short *pdata;
 
-	pdata = pdev->dev.platform_data;
+	pdata = dev_get_platdata(&pdev->dev);
 	if (!pdata) {
 		dev_err(&pdev->dev, "No platform data provided!\n");
 		err = -EINVAL;
-- 
cgit 


From e19f0305450a05076a236b62c11777c966d580a8 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 17:41:07 +0900
Subject: can: cc770: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/cc770/cc770_platform.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/can/cc770/cc770_platform.c b/drivers/net/can/cc770/cc770_platform.c
index 034bdd816a60..ad76734b3ecc 100644
--- a/drivers/net/can/cc770/cc770_platform.c
+++ b/drivers/net/can/cc770/cc770_platform.c
@@ -152,7 +152,7 @@ static int cc770_get_platform_data(struct platform_device *pdev,
 				   struct cc770_priv *priv)
 {
 
-	struct cc770_platform_data *pdata = pdev->dev.platform_data;
+	struct cc770_platform_data *pdata = dev_get_platdata(&pdev->dev);
 
 	priv->can.clock.freq = pdata->osc_freq;
 	if (priv->cpu_interface & CPUIF_DSC)
@@ -203,7 +203,7 @@ static int cc770_platform_probe(struct platform_device *pdev)
 
 	if (pdev->dev.of_node)
 		err = cc770_get_of_node_data(pdev, priv);
-	else if (pdev->dev.platform_data)
+	else if (dev_get_platdata(&pdev->dev))
 		err = cc770_get_platform_data(pdev, priv);
 	else
 		err = -ENODEV;
-- 
cgit 


From 84ae6643d8bd2d6c9a4e313212bfe68e0abcab3f Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 17:41:30 +0900
Subject: can: flexcan: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/flexcan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 71c677e651d7..e8c46bda07f5 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -1074,7 +1074,7 @@ static int flexcan_probe(struct platform_device *pdev)
 	priv->dev = dev;
 	priv->clk_ipg = clk_ipg;
 	priv->clk_per = clk_per;
-	priv->pdata = pdev->dev.platform_data;
+	priv->pdata = dev_get_platdata(&pdev->dev);
 	priv->devtype_data = devtype_data;
 
 	priv->reg_xceiver = devm_regulator_get(&pdev->dev, "xceiver");
-- 
cgit 


From c91a319c58e23b0b0a582c2d7824219d1120a92d Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 17:41:59 +0900
Subject: can: janz-ican3: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/janz-ican3.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c
index 36bd6fa1c7f3..ab5909a7bae9 100644
--- a/drivers/net/can/janz-ican3.c
+++ b/drivers/net/can/janz-ican3.c
@@ -1769,7 +1769,7 @@ static int ican3_probe(struct platform_device *pdev)
 	struct device *dev;
 	int ret;
 
-	pdata = pdev->dev.platform_data;
+	pdata = dev_get_platdata(&pdev->dev);
 	if (!pdata)
 		return -ENXIO;
 
-- 
cgit 


From 369566ef13c70ba368e370cf3df42df7ebc51e66 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 17:42:19 +0900
Subject: can: mcp251x: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/mcp251x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/mcp251x.c b/drivers/net/can/mcp251x.c
index fe7dd696957e..08ac401e0214 100644
--- a/drivers/net/can/mcp251x.c
+++ b/drivers/net/can/mcp251x.c
@@ -999,7 +999,7 @@ static int mcp251x_can_probe(struct spi_device *spi)
 {
 	struct net_device *net;
 	struct mcp251x_priv *priv;
-	struct mcp251x_platform_data *pdata = spi->dev.platform_data;
+	struct mcp251x_platform_data *pdata = dev_get_platdata(&spi->dev);
 	int ret = -ENODEV;
 
 	if (!pdata)
-- 
cgit 


From ecd78d97532bcc8422ed6900c9a3f19537ce860f Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 17:42:35 +0900
Subject: can: sja1000: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/sja1000/sja1000_platform.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/sja1000/sja1000_platform.c b/drivers/net/can/sja1000/sja1000_platform.c
index 8e259c541036..29f9b6321187 100644
--- a/drivers/net/can/sja1000/sja1000_platform.c
+++ b/drivers/net/can/sja1000/sja1000_platform.c
@@ -76,7 +76,7 @@ static int sp_probe(struct platform_device *pdev)
 	struct resource *res_mem, *res_irq;
 	struct sja1000_platform_data *pdata;
 
-	pdata = pdev->dev.platform_data;
+	pdata = dev_get_platdata(&pdev->dev);
 	if (!pdata) {
 		dev_err(&pdev->dev, "No platform data provided!\n");
 		err = -ENODEV;
-- 
cgit 


From c58bd858087960a3d11df884f8f92cc36343c069 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 17:42:53 +0900
Subject: can: softing: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/softing/softing_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/softing/softing_main.c b/drivers/net/can/softing/softing_main.c
index 65eef1eea2e2..6cd5c01b624d 100644
--- a/drivers/net/can/softing/softing_main.c
+++ b/drivers/net/can/softing/softing_main.c
@@ -768,7 +768,7 @@ static int softing_pdev_remove(struct platform_device *pdev)
 
 static int softing_pdev_probe(struct platform_device *pdev)
 {
-	const struct softing_platform_data *pdat = pdev->dev.platform_data;
+	const struct softing_platform_data *pdat = dev_get_platdata(&pdev->dev);
 	struct softing *card;
 	struct net_device *netdev;
 	struct softing_priv *priv;
-- 
cgit 


From fc218471c69edd43c34d304cd737f0958d8ce195 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 17:43:12 +0900
Subject: can: ti_hecc: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/ti_hecc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c
index 3a349a22d5bc..beb5ef834f0f 100644
--- a/drivers/net/can/ti_hecc.c
+++ b/drivers/net/can/ti_hecc.c
@@ -894,7 +894,7 @@ static int ti_hecc_probe(struct platform_device *pdev)
 	void __iomem *addr;
 	int err = -ENODEV;
 
-	pdata = pdev->dev.platform_data;
+	pdata = dev_get_platdata(&pdev->dev);
 	if (!pdata) {
 		dev_err(&pdev->dev, "No platform data\n");
 		goto probe_exit;
-- 
cgit 


From 5fabc336fead7d62b22b1a59e45efd7adc5d2ea7 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 20:08:15 +0900
Subject: can: c_can: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/c_can/c_can_pci.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/can/c_can/c_can_pci.c b/drivers/net/can/c_can/c_can_pci.c
index b374be7891a2..bce0be54c2f5 100644
--- a/drivers/net/can/c_can/c_can_pci.c
+++ b/drivers/net/can/c_can/c_can_pci.c
@@ -160,7 +160,6 @@ static int c_can_pci_probe(struct pci_dev *pdev,
 	return 0;
 
 out_free_c_can:
-	pci_set_drvdata(pdev, NULL);
 	free_c_can_dev(dev);
 out_iounmap:
 	pci_iounmap(pdev, addr);
@@ -181,7 +180,6 @@ static void c_can_pci_remove(struct pci_dev *pdev)
 
 	unregister_c_can_dev(dev);
 
-	pci_set_drvdata(pdev, NULL);
 	free_c_can_dev(dev);
 
 	pci_iounmap(pdev, priv->base);
-- 
cgit 


From aa86858c356beb72af86107612ac854c0150d6db Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 20:10:35 +0900
Subject: can: pch_can: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/pch_can.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c
index 5c314a961970..5f0e9b3bfa7b 100644
--- a/drivers/net/can/pch_can.c
+++ b/drivers/net/can/pch_can.c
@@ -964,7 +964,6 @@ static void pch_can_remove(struct pci_dev *pdev)
 		pci_disable_msi(priv->dev);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 	pch_can_reset(priv);
 	pci_iounmap(pdev, priv->regs);
 	free_candev(priv->ndev);
-- 
cgit 


From a0c7d83322521880caf8c9c1ef20a2a1cd5cb955 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 20:12:51 +0900
Subject: can: sja1000: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/sja1000/ems_pci.c    | 1 -
 drivers/net/can/sja1000/kvaser_pci.c | 1 -
 drivers/net/can/sja1000/peak_pci.c   | 2 --
 drivers/net/can/sja1000/plx_pci.c    | 1 -
 4 files changed, 5 deletions(-)

diff --git a/drivers/net/can/sja1000/ems_pci.c b/drivers/net/can/sja1000/ems_pci.c
index 3752342a678a..835921388e7b 100644
--- a/drivers/net/can/sja1000/ems_pci.c
+++ b/drivers/net/can/sja1000/ems_pci.c
@@ -207,7 +207,6 @@ static void ems_pci_del_card(struct pci_dev *pdev)
 	kfree(card);
 
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 static void ems_pci_card_reset(struct ems_pci_card *card)
diff --git a/drivers/net/can/sja1000/kvaser_pci.c b/drivers/net/can/sja1000/kvaser_pci.c
index 217585b97cd3..087b13bd300e 100644
--- a/drivers/net/can/sja1000/kvaser_pci.c
+++ b/drivers/net/can/sja1000/kvaser_pci.c
@@ -387,7 +387,6 @@ static void kvaser_pci_remove_one(struct pci_dev *pdev)
 
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 static struct pci_driver kvaser_pci_driver = {
diff --git a/drivers/net/can/sja1000/peak_pci.c b/drivers/net/can/sja1000/peak_pci.c
index 6b6f0ad75090..065ca49eb45e 100644
--- a/drivers/net/can/sja1000/peak_pci.c
+++ b/drivers/net/can/sja1000/peak_pci.c
@@ -744,8 +744,6 @@ static void peak_pci_remove(struct pci_dev *pdev)
 	pci_iounmap(pdev, cfg_base);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-
-	pci_set_drvdata(pdev, NULL);
 }
 
 static struct pci_driver peak_pci_driver = {
diff --git a/drivers/net/can/sja1000/plx_pci.c b/drivers/net/can/sja1000/plx_pci.c
index c52c1e96bf90..f9b4f81cd86a 100644
--- a/drivers/net/can/sja1000/plx_pci.c
+++ b/drivers/net/can/sja1000/plx_pci.c
@@ -477,7 +477,6 @@ static void plx_pci_del_card(struct pci_dev *pdev)
 	kfree(card);
 
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 /*
-- 
cgit 


From 1fd51155387264e3ca72094abadcaadb3f5969f6 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sat, 21 Sep 2013 10:22:41 -0700
Subject: inet*.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/inet6_connection_sock.h | 32 +++++++--------
 include/net/inet6_hashtables.h      | 38 +++++++++---------
 include/net/inet_common.h           | 48 +++++++++++-----------
 include/net/inet_connection_sock.h  | 79 ++++++++++++++++++-------------------
 include/net/inet_hashtables.h       | 72 ++++++++++++++++-----------------
 include/net/inet_sock.h             |  4 +-
 include/net/inet_timewait_sock.h    | 37 +++++++++--------
 include/net/inetpeer.h              | 12 +++---
 8 files changed, 157 insertions(+), 165 deletions(-)

diff --git a/include/net/inet6_connection_sock.h b/include/net/inet6_connection_sock.h
index 04642c920431..f981ba7adeed 100644
--- a/include/net/inet6_connection_sock.h
+++ b/include/net/inet6_connection_sock.h
@@ -22,27 +22,25 @@ struct sk_buff;
 struct sock;
 struct sockaddr;
 
-extern int inet6_csk_bind_conflict(const struct sock *sk,
-				   const struct inet_bind_bucket *tb, bool relax);
+int inet6_csk_bind_conflict(const struct sock *sk,
+			    const struct inet_bind_bucket *tb, bool relax);
 
-extern struct dst_entry* inet6_csk_route_req(struct sock *sk,
-					     struct flowi6 *fl6,
-					     const struct request_sock *req);
+struct dst_entry *inet6_csk_route_req(struct sock *sk, struct flowi6 *fl6,
+				      const struct request_sock *req);
 
-extern struct request_sock *inet6_csk_search_req(const struct sock *sk,
-						 struct request_sock ***prevp,
-						 const __be16 rport,
-						 const struct in6_addr *raddr,
-						 const struct in6_addr *laddr,
-						 const int iif);
+struct request_sock *inet6_csk_search_req(const struct sock *sk,
+					  struct request_sock ***prevp,
+					  const __be16 rport,
+					  const struct in6_addr *raddr,
+					  const struct in6_addr *laddr,
+					  const int iif);
 
-extern void inet6_csk_reqsk_queue_hash_add(struct sock *sk,
-					   struct request_sock *req,
-					   const unsigned long timeout);
+void inet6_csk_reqsk_queue_hash_add(struct sock *sk, struct request_sock *req,
+				    const unsigned long timeout);
 
-extern void inet6_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr);
+void inet6_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr);
 
-extern int inet6_csk_xmit(struct sk_buff *skb, struct flowi *fl);
+int inet6_csk_xmit(struct sk_buff *skb, struct flowi *fl);
 
-extern struct dst_entry *inet6_csk_update_pmtu(struct sock *sk, u32 mtu);
+struct dst_entry *inet6_csk_update_pmtu(struct sock *sk, u32 mtu);
 #endif /* _INET6_CONNECTION_SOCK_H */
diff --git a/include/net/inet6_hashtables.h b/include/net/inet6_hashtables.h
index fd4ee016ba5c..f52fa88feb64 100644
--- a/include/net/inet6_hashtables.h
+++ b/include/net/inet6_hashtables.h
@@ -53,7 +53,7 @@ static inline int inet6_sk_ehashfn(const struct sock *sk)
 	return inet6_ehashfn(net, laddr, lport, faddr, fport);
 }
 
-extern int __inet6_hash(struct sock *sk, struct inet_timewait_sock *twp);
+int __inet6_hash(struct sock *sk, struct inet_timewait_sock *twp);
 
 /*
  * Sockets in TCP_CLOSE state are _always_ taken out of the hash, so
@@ -61,21 +61,19 @@ extern int __inet6_hash(struct sock *sk, struct inet_timewait_sock *twp);
  *
  * The sockhash lock must be held as a reader here.
  */
-extern struct sock *__inet6_lookup_established(struct net *net,
-					   struct inet_hashinfo *hashinfo,
-					   const struct in6_addr *saddr,
-					   const __be16 sport,
-					   const struct in6_addr *daddr,
-					   const u16 hnum,
-					   const int dif);
-
-extern struct sock *inet6_lookup_listener(struct net *net,
-					  struct inet_hashinfo *hashinfo,
-					  const struct in6_addr *saddr,
-					  const __be16 sport,
-					  const struct in6_addr *daddr,
-					  const unsigned short hnum,
-					  const int dif);
+struct sock *__inet6_lookup_established(struct net *net,
+					struct inet_hashinfo *hashinfo,
+					const struct in6_addr *saddr,
+					const __be16 sport,
+					const struct in6_addr *daddr,
+					const u16 hnum, const int dif);
+
+struct sock *inet6_lookup_listener(struct net *net,
+				   struct inet_hashinfo *hashinfo,
+				   const struct in6_addr *saddr,
+				   const __be16 sport,
+				   const struct in6_addr *daddr,
+				   const unsigned short hnum, const int dif);
 
 static inline struct sock *__inet6_lookup(struct net *net,
 					  struct inet_hashinfo *hashinfo,
@@ -110,9 +108,9 @@ static inline struct sock *__inet6_lookup_skb(struct inet_hashinfo *hashinfo,
 			      inet6_iif(skb));
 }
 
-extern struct sock *inet6_lookup(struct net *net, struct inet_hashinfo *hashinfo,
-				 const struct in6_addr *saddr, const __be16 sport,
-				 const struct in6_addr *daddr, const __be16 dport,
-				 const int dif);
+struct sock *inet6_lookup(struct net *net, struct inet_hashinfo *hashinfo,
+			  const struct in6_addr *saddr, const __be16 sport,
+			  const struct in6_addr *daddr, const __be16 dport,
+			  const int dif);
 #endif /* IS_ENABLED(CONFIG_IPV6) */
 #endif /* _INET6_HASHTABLES_H */
diff --git a/include/net/inet_common.h b/include/net/inet_common.h
index 234008782c8c..fe7994c48b75 100644
--- a/include/net/inet_common.h
+++ b/include/net/inet_common.h
@@ -13,30 +13,30 @@ struct sock;
 struct sockaddr;
 struct socket;
 
-extern int inet_release(struct socket *sock);
-extern int inet_stream_connect(struct socket *sock, struct sockaddr *uaddr,
-			       int addr_len, int flags);
-extern int __inet_stream_connect(struct socket *sock, struct sockaddr *uaddr,
-				 int addr_len, int flags);
-extern int inet_dgram_connect(struct socket *sock, struct sockaddr *uaddr,
-			      int addr_len, int flags);
-extern int inet_accept(struct socket *sock, struct socket *newsock, int flags);
-extern int inet_sendmsg(struct kiocb *iocb, struct socket *sock,
-			struct msghdr *msg, size_t size);
-extern ssize_t inet_sendpage(struct socket *sock, struct page *page, int offset,
-			     size_t size, int flags);
-extern int inet_recvmsg(struct kiocb *iocb, struct socket *sock,
-			struct msghdr *msg, size_t size, int flags);
-extern int inet_shutdown(struct socket *sock, int how);
-extern int inet_listen(struct socket *sock, int backlog);
-extern void inet_sock_destruct(struct sock *sk);
-extern int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len);
-extern int inet_getname(struct socket *sock, struct sockaddr *uaddr,
-			int *uaddr_len, int peer);
-extern int inet_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
-extern int inet_ctl_sock_create(struct sock **sk, unsigned short family,
-				unsigned short type, unsigned char protocol,
-				struct net *net);
+int inet_release(struct socket *sock);
+int inet_stream_connect(struct socket *sock, struct sockaddr *uaddr,
+			int addr_len, int flags);
+int __inet_stream_connect(struct socket *sock, struct sockaddr *uaddr,
+			  int addr_len, int flags);
+int inet_dgram_connect(struct socket *sock, struct sockaddr *uaddr,
+		       int addr_len, int flags);
+int inet_accept(struct socket *sock, struct socket *newsock, int flags);
+int inet_sendmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
+		 size_t size);
+ssize_t inet_sendpage(struct socket *sock, struct page *page, int offset,
+		      size_t size, int flags);
+int inet_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
+		 size_t size, int flags);
+int inet_shutdown(struct socket *sock, int how);
+int inet_listen(struct socket *sock, int backlog);
+void inet_sock_destruct(struct sock *sk);
+int inet_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len);
+int inet_getname(struct socket *sock, struct sockaddr *uaddr, int *uaddr_len,
+		 int peer);
+int inet_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
+int inet_ctl_sock_create(struct sock **sk, unsigned short family,
+			 unsigned short type, unsigned char protocol,
+			 struct net *net);
 
 static inline void inet_ctl_sock_destroy(struct sock *sk)
 {
diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h
index de2c78529afa..c55aeed41ace 100644
--- a/include/net/inet_connection_sock.h
+++ b/include/net/inet_connection_sock.h
@@ -146,9 +146,9 @@ static inline void *inet_csk_ca(const struct sock *sk)
 	return (void *)inet_csk(sk)->icsk_ca_priv;
 }
 
-extern struct sock *inet_csk_clone_lock(const struct sock *sk,
-					const struct request_sock *req,
-					const gfp_t priority);
+struct sock *inet_csk_clone_lock(const struct sock *sk,
+				 const struct request_sock *req,
+				 const gfp_t priority);
 
 enum inet_csk_ack_state_t {
 	ICSK_ACK_SCHED	= 1,
@@ -157,11 +157,11 @@ enum inet_csk_ack_state_t {
 	ICSK_ACK_PUSHED2 = 8
 };
 
-extern void inet_csk_init_xmit_timers(struct sock *sk,
-				      void (*retransmit_handler)(unsigned long),
-				      void (*delack_handler)(unsigned long),
-				      void (*keepalive_handler)(unsigned long));
-extern void inet_csk_clear_xmit_timers(struct sock *sk);
+void inet_csk_init_xmit_timers(struct sock *sk,
+			       void (*retransmit_handler)(unsigned long),
+			       void (*delack_handler)(unsigned long),
+			       void (*keepalive_handler)(unsigned long));
+void inet_csk_clear_xmit_timers(struct sock *sk);
 
 static inline void inet_csk_schedule_ack(struct sock *sk)
 {
@@ -178,8 +178,8 @@ static inline void inet_csk_delack_init(struct sock *sk)
 	memset(&inet_csk(sk)->icsk_ack, 0, sizeof(inet_csk(sk)->icsk_ack));
 }
 
-extern void inet_csk_delete_keepalive_timer(struct sock *sk);
-extern void inet_csk_reset_keepalive_timer(struct sock *sk, unsigned long timeout);
+void inet_csk_delete_keepalive_timer(struct sock *sk);
+void inet_csk_reset_keepalive_timer(struct sock *sk, unsigned long timeout);
 
 #ifdef INET_CSK_DEBUG
 extern const char inet_csk_timer_bug_msg[];
@@ -241,23 +241,21 @@ static inline void inet_csk_reset_xmit_timer(struct sock *sk, const int what,
 #endif
 }
 
-extern struct sock *inet_csk_accept(struct sock *sk, int flags, int *err);
+struct sock *inet_csk_accept(struct sock *sk, int flags, int *err);
 
-extern struct request_sock *inet_csk_search_req(const struct sock *sk,
-						struct request_sock ***prevp,
-						const __be16 rport,
-						const __be32 raddr,
-						const __be32 laddr);
-extern int inet_csk_bind_conflict(const struct sock *sk,
-				  const struct inet_bind_bucket *tb, bool relax);
-extern int inet_csk_get_port(struct sock *sk, unsigned short snum);
+struct request_sock *inet_csk_search_req(const struct sock *sk,
+					 struct request_sock ***prevp,
+					 const __be16 rport,
+					 const __be32 raddr,
+					 const __be32 laddr);
+int inet_csk_bind_conflict(const struct sock *sk,
+			   const struct inet_bind_bucket *tb, bool relax);
+int inet_csk_get_port(struct sock *sk, unsigned short snum);
 
-extern struct dst_entry* inet_csk_route_req(struct sock *sk,
-					    struct flowi4 *fl4,
+struct dst_entry *inet_csk_route_req(struct sock *sk, struct flowi4 *fl4,
+				     const struct request_sock *req);
+struct dst_entry *inet_csk_route_child_sock(struct sock *sk, struct sock *newsk,
 					    const struct request_sock *req);
-extern struct dst_entry* inet_csk_route_child_sock(struct sock *sk,
-						   struct sock *newsk,
-						   const struct request_sock *req);
 
 static inline void inet_csk_reqsk_queue_add(struct sock *sk,
 					    struct request_sock *req,
@@ -266,9 +264,8 @@ static inline void inet_csk_reqsk_queue_add(struct sock *sk,
 	reqsk_queue_add(&inet_csk(sk)->icsk_accept_queue, req, sk, child);
 }
 
-extern void inet_csk_reqsk_queue_hash_add(struct sock *sk,
-					  struct request_sock *req,
-					  unsigned long timeout);
+void inet_csk_reqsk_queue_hash_add(struct sock *sk, struct request_sock *req,
+				   unsigned long timeout);
 
 static inline void inet_csk_reqsk_queue_removed(struct sock *sk,
 						struct request_sock *req)
@@ -315,13 +312,13 @@ static inline void inet_csk_reqsk_queue_drop(struct sock *sk,
 	reqsk_free(req);
 }
 
-extern void inet_csk_reqsk_queue_prune(struct sock *parent,
-				       const unsigned long interval,
-				       const unsigned long timeout,
-				       const unsigned long max_rto);
+void inet_csk_reqsk_queue_prune(struct sock *parent,
+				const unsigned long interval,
+				const unsigned long timeout,
+				const unsigned long max_rto);
 
-extern void inet_csk_destroy_sock(struct sock *sk);
-extern void inet_csk_prepare_forced_close(struct sock *sk);
+void inet_csk_destroy_sock(struct sock *sk);
+void inet_csk_prepare_forced_close(struct sock *sk);
 
 /*
  * LISTEN is a special case for poll..
@@ -332,15 +329,15 @@ static inline unsigned int inet_csk_listen_poll(const struct sock *sk)
 			(POLLIN | POLLRDNORM) : 0;
 }
 
-extern int  inet_csk_listen_start(struct sock *sk, const int nr_table_entries);
-extern void inet_csk_listen_stop(struct sock *sk);
+int inet_csk_listen_start(struct sock *sk, const int nr_table_entries);
+void inet_csk_listen_stop(struct sock *sk);
 
-extern void inet_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr);
+void inet_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr);
 
-extern int inet_csk_compat_getsockopt(struct sock *sk, int level, int optname,
-				      char __user *optval, int __user *optlen);
-extern int inet_csk_compat_setsockopt(struct sock *sk, int level, int optname,
-				      char __user *optval, unsigned int optlen);
+int inet_csk_compat_getsockopt(struct sock *sk, int level, int optname,
+			       char __user *optval, int __user *optlen);
+int inet_csk_compat_setsockopt(struct sock *sk, int level, int optname,
+			       char __user *optval, unsigned int optlen);
 
-extern struct dst_entry *inet_csk_update_pmtu(struct sock *sk, u32 mtu);
+struct dst_entry *inet_csk_update_pmtu(struct sock *sk, u32 mtu);
 #endif /* _INET_CONNECTION_SOCK_H */
diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index ef83d9e844b5..594dfeead70f 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -218,22 +218,21 @@ static inline void inet_ehash_locks_free(struct inet_hashinfo *hashinfo)
 	}
 }
 
-extern struct inet_bind_bucket *
-		    inet_bind_bucket_create(struct kmem_cache *cachep,
-					    struct net *net,
-					    struct inet_bind_hashbucket *head,
-					    const unsigned short snum);
-extern void inet_bind_bucket_destroy(struct kmem_cache *cachep,
-				     struct inet_bind_bucket *tb);
-
-static inline int inet_bhashfn(struct net *net,
-		const __u16 lport, const int bhash_size)
+struct inet_bind_bucket *
+inet_bind_bucket_create(struct kmem_cache *cachep, struct net *net,
+			struct inet_bind_hashbucket *head,
+			const unsigned short snum);
+void inet_bind_bucket_destroy(struct kmem_cache *cachep,
+			      struct inet_bind_bucket *tb);
+
+static inline int inet_bhashfn(struct net *net, const __u16 lport,
+			       const int bhash_size)
 {
 	return (lport + net_hash_mix(net)) & (bhash_size - 1);
 }
 
-extern void inet_bind_hash(struct sock *sk, struct inet_bind_bucket *tb,
-			   const unsigned short snum);
+void inet_bind_hash(struct sock *sk, struct inet_bind_bucket *tb,
+		    const unsigned short snum);
 
 /* These can have wildcards, don't try too hard. */
 static inline int inet_lhashfn(struct net *net, const unsigned short num)
@@ -247,23 +246,22 @@ static inline int inet_sk_listen_hashfn(const struct sock *sk)
 }
 
 /* Caller must disable local BH processing. */
-extern int __inet_inherit_port(struct sock *sk, struct sock *child);
+int __inet_inherit_port(struct sock *sk, struct sock *child);
 
-extern void inet_put_port(struct sock *sk);
+void inet_put_port(struct sock *sk);
 
 void inet_hashinfo_init(struct inet_hashinfo *h);
 
-extern int __inet_hash_nolisten(struct sock *sk, struct inet_timewait_sock *tw);
-extern void inet_hash(struct sock *sk);
-extern void inet_unhash(struct sock *sk);
+int __inet_hash_nolisten(struct sock *sk, struct inet_timewait_sock *tw);
+void inet_hash(struct sock *sk);
+void inet_unhash(struct sock *sk);
 
-extern struct sock *__inet_lookup_listener(struct net *net,
-					   struct inet_hashinfo *hashinfo,
-					   const __be32 saddr,
-					   const __be16 sport,
-					   const __be32 daddr,
-					   const unsigned short hnum,
-					   const int dif);
+struct sock *__inet_lookup_listener(struct net *net,
+				    struct inet_hashinfo *hashinfo,
+				    const __be32 saddr, const __be16 sport,
+				    const __be32 daddr,
+				    const unsigned short hnum,
+				    const int dif);
 
 static inline struct sock *inet_lookup_listener(struct net *net,
 		struct inet_hashinfo *hashinfo,
@@ -339,10 +337,11 @@ static inline struct sock *inet_lookup_listener(struct net *net,
  *
  * Local BH must be disabled here.
  */
-extern struct sock * __inet_lookup_established(struct net *net,
-		struct inet_hashinfo *hashinfo,
-		const __be32 saddr, const __be16 sport,
-		const __be32 daddr, const u16 hnum, const int dif);
+struct sock *__inet_lookup_established(struct net *net,
+				       struct inet_hashinfo *hashinfo,
+				       const __be32 saddr, const __be16 sport,
+				       const __be32 daddr, const u16 hnum,
+				       const int dif);
 
 static inline struct sock *
 	inet_lookup_established(struct net *net, struct inet_hashinfo *hashinfo,
@@ -399,13 +398,14 @@ static inline struct sock *__inet_lookup_skb(struct inet_hashinfo *hashinfo,
 				     iph->daddr, dport, inet_iif(skb));
 }
 
-extern int __inet_hash_connect(struct inet_timewait_death_row *death_row,
-		struct sock *sk,
-		u32 port_offset,
-		int (*check_established)(struct inet_timewait_death_row *,
-			struct sock *, __u16, struct inet_timewait_sock **),
-		int (*hash)(struct sock *sk, struct inet_timewait_sock *twp));
+int __inet_hash_connect(struct inet_timewait_death_row *death_row,
+			struct sock *sk, u32 port_offset,
+			int (*check_established)(struct inet_timewait_death_row *,
+						 struct sock *, __u16,
+						 struct inet_timewait_sock **),
+			int (*hash)(struct sock *sk,
+				    struct inet_timewait_sock *twp));
 
-extern int inet_hash_connect(struct inet_timewait_death_row *death_row,
-			     struct sock *sk);
+int inet_hash_connect(struct inet_timewait_death_row *death_row,
+		      struct sock *sk);
 #endif /* _INET_HASHTABLES_H */
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index b21a7f06d6a4..636d203727a2 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -199,11 +199,11 @@ static inline void inet_sk_copy_descendant(struct sock *sk_to,
 }
 #endif
 
-extern int inet_sk_rebuild_header(struct sock *sk);
+int inet_sk_rebuild_header(struct sock *sk);
 
 extern u32 inet_ehash_secret;
 extern u32 ipv6_hash_secret;
-extern void build_ehash_secret(void);
+void build_ehash_secret(void);
 
 static inline unsigned int inet_ehashfn(struct net *net,
 					const __be32 laddr, const __u16 lport,
diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h
index f908dfc06505..828200ab1125 100644
--- a/include/net/inet_timewait_sock.h
+++ b/include/net/inet_timewait_sock.h
@@ -83,9 +83,9 @@ struct inet_timewait_death_row {
 	int			sysctl_max_tw_buckets;
 };
 
-extern void inet_twdr_hangman(unsigned long data);
-extern void inet_twdr_twkill_work(struct work_struct *work);
-extern void inet_twdr_twcal_tick(unsigned long data);
+void inet_twdr_hangman(unsigned long data);
+void inet_twdr_twkill_work(struct work_struct *work);
+void inet_twdr_twcal_tick(unsigned long data);
 
 struct inet_bind_bucket;
 
@@ -195,28 +195,27 @@ static inline __be32 sk_rcv_saddr(const struct sock *sk)
 	return sk->__sk_common.skc_rcv_saddr;
 }
 
-extern void inet_twsk_put(struct inet_timewait_sock *tw);
+void inet_twsk_put(struct inet_timewait_sock *tw);
 
-extern int inet_twsk_unhash(struct inet_timewait_sock *tw);
+int inet_twsk_unhash(struct inet_timewait_sock *tw);
 
-extern int inet_twsk_bind_unhash(struct inet_timewait_sock *tw,
-				 struct inet_hashinfo *hashinfo);
+int inet_twsk_bind_unhash(struct inet_timewait_sock *tw,
+			  struct inet_hashinfo *hashinfo);
 
-extern struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk,
-						  const int state);
+struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk,
+					   const int state);
 
-extern void __inet_twsk_hashdance(struct inet_timewait_sock *tw,
-				  struct sock *sk,
-				  struct inet_hashinfo *hashinfo);
+void __inet_twsk_hashdance(struct inet_timewait_sock *tw, struct sock *sk,
+			   struct inet_hashinfo *hashinfo);
 
-extern void inet_twsk_schedule(struct inet_timewait_sock *tw,
-			       struct inet_timewait_death_row *twdr,
-			       const int timeo, const int timewait_len);
-extern void inet_twsk_deschedule(struct inet_timewait_sock *tw,
-				 struct inet_timewait_death_row *twdr);
+void inet_twsk_schedule(struct inet_timewait_sock *tw,
+			struct inet_timewait_death_row *twdr,
+			const int timeo, const int timewait_len);
+void inet_twsk_deschedule(struct inet_timewait_sock *tw,
+			  struct inet_timewait_death_row *twdr);
 
-extern void inet_twsk_purge(struct inet_hashinfo *hashinfo,
-			    struct inet_timewait_death_row *twdr, int family);
+void inet_twsk_purge(struct inet_hashinfo *hashinfo,
+		     struct inet_timewait_death_row *twdr, int family);
 
 static inline
 struct net *twsk_net(const struct inet_timewait_sock *twsk)
diff --git a/include/net/inetpeer.h b/include/net/inetpeer.h
index 53f464d7cddc..f4e127af4e17 100644
--- a/include/net/inetpeer.h
+++ b/include/net/inetpeer.h
@@ -120,9 +120,9 @@ static inline void inetpeer_transfer_peer(unsigned long *to, unsigned long *from
 	}
 }
 
-extern void inet_peer_base_init(struct inet_peer_base *);
+void inet_peer_base_init(struct inet_peer_base *);
 
-void			inet_initpeers(void) __init;
+void inet_initpeers(void) __init;
 
 #define INETPEER_METRICS_NEW	(~(u32) 0)
 
@@ -159,11 +159,11 @@ static inline struct inet_peer *inet_getpeer_v6(struct inet_peer_base *base,
 }
 
 /* can be called from BH context or outside */
-extern void inet_putpeer(struct inet_peer *p);
-extern bool inet_peer_xrlim_allow(struct inet_peer *peer, int timeout);
+void inet_putpeer(struct inet_peer *p);
+bool inet_peer_xrlim_allow(struct inet_peer *peer, int timeout);
 
-extern void inetpeer_invalidate_tree(struct inet_peer_base *);
-extern void inetpeer_invalidate_family(int family);
+void inetpeer_invalidate_tree(struct inet_peer_base *);
+void inetpeer_invalidate_family(int family);
 
 /*
  * temporary check to make sure we dont access rid, ip_id_count, tcp_ts,
-- 
cgit 


From 5c3a0fd7d0fc2985fcd540aa9d7656dcc2d57b41 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sat, 21 Sep 2013 10:22:42 -0700
Subject: ip*.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/ip.h        | 169 +++++++++++++++---------------
 include/net/ip6_fib.h   |  53 +++++-----
 include/net/ip6_route.h |  98 ++++++++----------
 include/net/ip_fib.h    |  61 ++++++-----
 include/net/ip_vs.h     | 245 +++++++++++++++++++++----------------------
 include/net/ipv6.h      | 268 +++++++++++++++++++++---------------------------
 6 files changed, 416 insertions(+), 478 deletions(-)

diff --git a/include/net/ip.h b/include/net/ip.h
index 5e5268807a1c..c1f192b8cd0e 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -86,53 +86,51 @@ struct packet_type;
 struct rtable;
 struct sockaddr;
 
-extern int		igmp_mc_proc_init(void);
+int igmp_mc_proc_init(void);
 
 /*
  *	Functions provided by ip.c
  */
 
-extern int		ip_build_and_send_pkt(struct sk_buff *skb, struct sock *sk,
-					      __be32 saddr, __be32 daddr,
-					      struct ip_options_rcu *opt);
-extern int		ip_rcv(struct sk_buff *skb, struct net_device *dev,
-			       struct packet_type *pt, struct net_device *orig_dev);
-extern int		ip_local_deliver(struct sk_buff *skb);
-extern int		ip_mr_input(struct sk_buff *skb);
-extern int		ip_output(struct sk_buff *skb);
-extern int		ip_mc_output(struct sk_buff *skb);
-extern int		ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *));
-extern int		ip_do_nat(struct sk_buff *skb);
-extern void		ip_send_check(struct iphdr *ip);
-extern int		__ip_local_out(struct sk_buff *skb);
-extern int		ip_local_out(struct sk_buff *skb);
-extern int		ip_queue_xmit(struct sk_buff *skb, struct flowi *fl);
-extern void		ip_init(void);
-extern int		ip_append_data(struct sock *sk, struct flowi4 *fl4,
-				       int getfrag(void *from, char *to, int offset, int len,
-						   int odd, struct sk_buff *skb),
-				void *from, int len, int protolen,
-				struct ipcm_cookie *ipc,
-				struct rtable **rt,
-				unsigned int flags);
-extern int		ip_generic_getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb);
-extern ssize_t		ip_append_page(struct sock *sk, struct flowi4 *fl4, struct page *page,
-				int offset, size_t size, int flags);
-extern struct sk_buff  *__ip_make_skb(struct sock *sk,
-				      struct flowi4 *fl4,
-				      struct sk_buff_head *queue,
-				      struct inet_cork *cork);
-extern int		ip_send_skb(struct net *net, struct sk_buff *skb);
-extern int		ip_push_pending_frames(struct sock *sk, struct flowi4 *fl4);
-extern void		ip_flush_pending_frames(struct sock *sk);
-extern struct sk_buff  *ip_make_skb(struct sock *sk,
-				    struct flowi4 *fl4,
-				    int getfrag(void *from, char *to, int offset, int len,
-						int odd, struct sk_buff *skb),
-				    void *from, int length, int transhdrlen,
-				    struct ipcm_cookie *ipc,
-				    struct rtable **rtp,
-				    unsigned int flags);
+int ip_build_and_send_pkt(struct sk_buff *skb, struct sock *sk,
+			  __be32 saddr, __be32 daddr,
+			  struct ip_options_rcu *opt);
+int ip_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
+	   struct net_device *orig_dev);
+int ip_local_deliver(struct sk_buff *skb);
+int ip_mr_input(struct sk_buff *skb);
+int ip_output(struct sk_buff *skb);
+int ip_mc_output(struct sk_buff *skb);
+int ip_fragment(struct sk_buff *skb, int (*output)(struct sk_buff *));
+int ip_do_nat(struct sk_buff *skb);
+void ip_send_check(struct iphdr *ip);
+int __ip_local_out(struct sk_buff *skb);
+int ip_local_out(struct sk_buff *skb);
+int ip_queue_xmit(struct sk_buff *skb, struct flowi *fl);
+void ip_init(void);
+int ip_append_data(struct sock *sk, struct flowi4 *fl4,
+		   int getfrag(void *from, char *to, int offset, int len,
+			       int odd, struct sk_buff *skb),
+		   void *from, int len, int protolen,
+		   struct ipcm_cookie *ipc,
+		   struct rtable **rt,
+		   unsigned int flags);
+int ip_generic_getfrag(void *from, char *to, int offset, int len, int odd,
+		       struct sk_buff *skb);
+ssize_t ip_append_page(struct sock *sk, struct flowi4 *fl4, struct page *page,
+		       int offset, size_t size, int flags);
+struct sk_buff *__ip_make_skb(struct sock *sk, struct flowi4 *fl4,
+			      struct sk_buff_head *queue,
+			      struct inet_cork *cork);
+int ip_send_skb(struct net *net, struct sk_buff *skb);
+int ip_push_pending_frames(struct sock *sk, struct flowi4 *fl4);
+void ip_flush_pending_frames(struct sock *sk);
+struct sk_buff *ip_make_skb(struct sock *sk, struct flowi4 *fl4,
+			    int getfrag(void *from, char *to, int offset,
+					int len, int odd, struct sk_buff *skb),
+			    void *from, int length, int transhdrlen,
+			    struct ipcm_cookie *ipc, struct rtable **rtp,
+			    unsigned int flags);
 
 static inline struct sk_buff *ip_finish_skb(struct sock *sk, struct flowi4 *fl4)
 {
@@ -140,10 +138,9 @@ static inline struct sk_buff *ip_finish_skb(struct sock *sk, struct flowi4 *fl4)
 }
 
 /* datagram.c */
-extern int		ip4_datagram_connect(struct sock *sk, 
-					     struct sockaddr *uaddr, int addr_len);
+int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len);
 
-extern void ip4_datagram_release_cb(struct sock *sk);
+void ip4_datagram_release_cb(struct sock *sk);
 
 struct ip_reply_arg {
 	struct kvec iov[1];   
@@ -184,16 +181,16 @@ extern struct ipv4_config ipv4_config;
 #define NET_ADD_STATS_BH(net, field, adnd) SNMP_ADD_STATS_BH((net)->mib.net_statistics, field, adnd)
 #define NET_ADD_STATS_USER(net, field, adnd) SNMP_ADD_STATS_USER((net)->mib.net_statistics, field, adnd)
 
-extern unsigned long snmp_fold_field(void __percpu *mib[], int offt);
+unsigned long snmp_fold_field(void __percpu *mib[], int offt);
 #if BITS_PER_LONG==32
-extern u64 snmp_fold_field64(void __percpu *mib[], int offt, size_t sync_off);
+u64 snmp_fold_field64(void __percpu *mib[], int offt, size_t sync_off);
 #else
 static inline u64 snmp_fold_field64(void __percpu *mib[], int offt, size_t syncp_off)
 {
 	return snmp_fold_field(mib, offt);
 }
 #endif
-extern int snmp_mib_init(void __percpu *ptr[2], size_t mibsize, size_t align);
+int snmp_mib_init(void __percpu *ptr[2], size_t mibsize, size_t align);
 
 static inline void snmp_mib_free(void __percpu *ptr[SNMP_ARRAY_SZ])
 {
@@ -210,7 +207,7 @@ extern struct local_ports {
 	seqlock_t	lock;
 	int		range[2];
 } sysctl_local_ports;
-extern void inet_get_local_port_range(int *low, int *high);
+void inet_get_local_port_range(int *low, int *high);
 
 extern unsigned long *sysctl_local_reserved_ports;
 static inline int inet_is_reserved_local_port(int port)
@@ -231,9 +228,9 @@ extern int sysctl_ip_early_demux;
 /* From ip_output.c */
 extern int sysctl_ip_dynaddr;
 
-extern void ipfrag_init(void);
+void ipfrag_init(void);
 
-extern void ip_static_sysctl_init(void);
+void ip_static_sysctl_init(void);
 
 static inline bool ip_is_fragment(const struct iphdr *iph)
 {
@@ -262,7 +259,7 @@ int ip_dont_fragment(struct sock *sk, struct dst_entry *dst)
 		 !(dst_metric_locked(dst, RTAX_MTU)));
 }
 
-extern void __ip_select_ident(struct iphdr *iph, struct dst_entry *dst, int more);
+void __ip_select_ident(struct iphdr *iph, struct dst_entry *dst, int more);
 
 static inline void ip_select_ident(struct sk_buff *skb, struct dst_entry *dst, struct sock *sk)
 {
@@ -390,7 +387,7 @@ static inline int sk_mc_loop(struct sock *sk)
 	return 1;
 }
 
-extern bool ip_call_ra_chain(struct sk_buff *skb);
+bool ip_call_ra_chain(struct sk_buff *skb);
 
 /*
  *	Functions provided by ip_fragment.c
@@ -428,50 +425,52 @@ int ip_frag_nqueues(struct net *net);
  *	Functions provided by ip_forward.c
  */
  
-extern int ip_forward(struct sk_buff *skb);
+int ip_forward(struct sk_buff *skb);
  
 /*
  *	Functions provided by ip_options.c
  */
  
-extern void ip_options_build(struct sk_buff *skb, struct ip_options *opt,
-			     __be32 daddr, struct rtable *rt, int is_frag);
-extern int ip_options_echo(struct ip_options *dopt, struct sk_buff *skb);
-extern void ip_options_fragment(struct sk_buff *skb);
-extern int ip_options_compile(struct net *net,
-			      struct ip_options *opt, struct sk_buff *skb);
-extern int ip_options_get(struct net *net, struct ip_options_rcu **optp,
-			  unsigned char *data, int optlen);
-extern int ip_options_get_from_user(struct net *net, struct ip_options_rcu **optp,
-				    unsigned char __user *data, int optlen);
-extern void ip_options_undo(struct ip_options * opt);
-extern void ip_forward_options(struct sk_buff *skb);
-extern int ip_options_rcv_srr(struct sk_buff *skb);
+void ip_options_build(struct sk_buff *skb, struct ip_options *opt,
+		      __be32 daddr, struct rtable *rt, int is_frag);
+int ip_options_echo(struct ip_options *dopt, struct sk_buff *skb);
+void ip_options_fragment(struct sk_buff *skb);
+int ip_options_compile(struct net *net, struct ip_options *opt,
+		       struct sk_buff *skb);
+int ip_options_get(struct net *net, struct ip_options_rcu **optp,
+		   unsigned char *data, int optlen);
+int ip_options_get_from_user(struct net *net, struct ip_options_rcu **optp,
+			     unsigned char __user *data, int optlen);
+void ip_options_undo(struct ip_options *opt);
+void ip_forward_options(struct sk_buff *skb);
+int ip_options_rcv_srr(struct sk_buff *skb);
 
 /*
  *	Functions provided by ip_sockglue.c
  */
 
-extern void	ipv4_pktinfo_prepare(struct sk_buff *skb);
-extern void	ip_cmsg_recv(struct msghdr *msg, struct sk_buff *skb);
-extern int	ip_cmsg_send(struct net *net,
-			     struct msghdr *msg, struct ipcm_cookie *ipc);
-extern int	ip_setsockopt(struct sock *sk, int level, int optname, char __user *optval, unsigned int optlen);
-extern int	ip_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen);
-extern int	compat_ip_setsockopt(struct sock *sk, int level,
-			int optname, char __user *optval, unsigned int optlen);
-extern int	compat_ip_getsockopt(struct sock *sk, int level,
-			int optname, char __user *optval, int __user *optlen);
-extern int	ip_ra_control(struct sock *sk, unsigned char on, void (*destructor)(struct sock *));
-
-extern int 	ip_recv_error(struct sock *sk, struct msghdr *msg, int len);
-extern void	ip_icmp_error(struct sock *sk, struct sk_buff *skb, int err, 
-			      __be16 port, u32 info, u8 *payload);
-extern void	ip_local_error(struct sock *sk, int err, __be32 daddr, __be16 dport,
-			       u32 info);
+void ipv4_pktinfo_prepare(struct sk_buff *skb);
+void ip_cmsg_recv(struct msghdr *msg, struct sk_buff *skb);
+int ip_cmsg_send(struct net *net, struct msghdr *msg, struct ipcm_cookie *ipc);
+int ip_setsockopt(struct sock *sk, int level, int optname, char __user *optval,
+		  unsigned int optlen);
+int ip_getsockopt(struct sock *sk, int level, int optname, char __user *optval,
+		  int __user *optlen);
+int compat_ip_setsockopt(struct sock *sk, int level, int optname,
+			 char __user *optval, unsigned int optlen);
+int compat_ip_getsockopt(struct sock *sk, int level, int optname,
+			 char __user *optval, int __user *optlen);
+int ip_ra_control(struct sock *sk, unsigned char on,
+		  void (*destructor)(struct sock *));
+
+int ip_recv_error(struct sock *sk, struct msghdr *msg, int len);
+void ip_icmp_error(struct sock *sk, struct sk_buff *skb, int err, __be16 port,
+		   u32 info, u8 *payload);
+void ip_local_error(struct sock *sk, int err, __be32 daddr, __be16 dport,
+		    u32 info);
 
 #ifdef CONFIG_PROC_FS
-extern int ip_misc_proc_init(void);
+int ip_misc_proc_init(void);
 #endif
 
 #endif	/* _IP_H */
diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index 48ec25a7fcb6..eab88f0e2088 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -267,48 +267,41 @@ typedef struct rt6_info *(*pol_lookup_t)(struct net *,
  *	exported functions
  */
 
-extern struct fib6_table        *fib6_get_table(struct net *net, u32 id);
-extern struct fib6_table        *fib6_new_table(struct net *net, u32 id);
-extern struct dst_entry         *fib6_rule_lookup(struct net *net,
-						  struct flowi6 *fl6, int flags,
-						  pol_lookup_t lookup);
+struct fib6_table *fib6_get_table(struct net *net, u32 id);
+struct fib6_table *fib6_new_table(struct net *net, u32 id);
+struct dst_entry *fib6_rule_lookup(struct net *net, struct flowi6 *fl6,
+				   int flags, pol_lookup_t lookup);
 
-extern struct fib6_node		*fib6_lookup(struct fib6_node *root,
-					     const struct in6_addr *daddr,
-					     const struct in6_addr *saddr);
+struct fib6_node *fib6_lookup(struct fib6_node *root,
+			      const struct in6_addr *daddr,
+			      const struct in6_addr *saddr);
 
-struct fib6_node		*fib6_locate(struct fib6_node *root,
-					     const struct in6_addr *daddr, int dst_len,
-					     const struct in6_addr *saddr, int src_len);
+struct fib6_node *fib6_locate(struct fib6_node *root,
+			      const struct in6_addr *daddr, int dst_len,
+			      const struct in6_addr *saddr, int src_len);
 
-extern void			fib6_clean_all_ro(struct net *net,
-					       int (*func)(struct rt6_info *, void *arg),
-					       int prune, void *arg);
+void fib6_clean_all_ro(struct net *net,
+		       int (*func)(struct rt6_info *, void *arg),
+		       int prune, void *arg);
 
-extern void			fib6_clean_all(struct net *net,
-					       int (*func)(struct rt6_info *, void *arg),
-					       int prune, void *arg);
+void fib6_clean_all(struct net *net, int (*func)(struct rt6_info *, void *arg),
+		    int prune, void *arg);
 
-extern int			fib6_add(struct fib6_node *root,
-					 struct rt6_info *rt,
-					 struct nl_info *info);
+int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nl_info *info);
 
-extern int			fib6_del(struct rt6_info *rt,
-					 struct nl_info *info);
+int fib6_del(struct rt6_info *rt, struct nl_info *info);
 
-extern void			inet6_rt_notify(int event, struct rt6_info *rt,
-						struct nl_info *info);
+void inet6_rt_notify(int event, struct rt6_info *rt, struct nl_info *info);
 
-extern void			fib6_run_gc(unsigned long expires,
-					    struct net *net, bool force);
+void fib6_run_gc(unsigned long expires, struct net *net, bool force);
 
-extern void			fib6_gc_cleanup(void);
+void fib6_gc_cleanup(void);
 
-extern int			fib6_init(void);
+int fib6_init(void);
 
 #ifdef CONFIG_IPV6_MULTIPLE_TABLES
-extern int			fib6_rules_init(void);
-extern void			fib6_rules_cleanup(void);
+int fib6_rules_init(void);
+void fib6_rules_cleanup(void);
 #else
 static inline int               fib6_rules_init(void)
 {
diff --git a/include/net/ip6_route.h b/include/net/ip6_route.h
index f525e7038cca..02e220dc4cf5 100644
--- a/include/net/ip6_route.h
+++ b/include/net/ip6_route.h
@@ -51,7 +51,7 @@ static inline unsigned int rt6_flags2srcprefs(int flags)
 	return (flags >> 3) & 7;
 }
 
-extern void rt6_bind_peer(struct rt6_info *rt, int create);
+void rt6_bind_peer(struct rt6_info *rt, int create);
 
 static inline struct inet_peer *__rt6_get_peer(struct rt6_info *rt, int create)
 {
@@ -72,70 +72,58 @@ static inline struct inet_peer *rt6_get_peer_create(struct rt6_info *rt)
 	return __rt6_get_peer(rt, 1);
 }
 
-extern void			ip6_route_input(struct sk_buff *skb);
+void ip6_route_input(struct sk_buff *skb);
 
-extern struct dst_entry *	ip6_route_output(struct net *net,
-						 const struct sock *sk,
-						 struct flowi6 *fl6);
-extern struct dst_entry *	ip6_route_lookup(struct net *net,
-						 struct flowi6 *fl6, int flags);
+struct dst_entry *ip6_route_output(struct net *net, const struct sock *sk,
+				   struct flowi6 *fl6);
+struct dst_entry *ip6_route_lookup(struct net *net, struct flowi6 *fl6,
+				   int flags);
 
-extern int			ip6_route_init(void);
-extern void			ip6_route_cleanup(void);
+int ip6_route_init(void);
+void ip6_route_cleanup(void);
 
-extern int			ipv6_route_ioctl(struct net *net,
-						 unsigned int cmd,
-						 void __user *arg);
+int ipv6_route_ioctl(struct net *net, unsigned int cmd, void __user *arg);
 
-extern int			ip6_route_add(struct fib6_config *cfg);
-extern int			ip6_ins_rt(struct rt6_info *);
-extern int			ip6_del_rt(struct rt6_info *);
+int ip6_route_add(struct fib6_config *cfg);
+int ip6_ins_rt(struct rt6_info *);
+int ip6_del_rt(struct rt6_info *);
 
-extern int			ip6_route_get_saddr(struct net *net,
-						    struct rt6_info *rt,
-						    const struct in6_addr *daddr,
-						    unsigned int prefs,
-						    struct in6_addr *saddr);
+int ip6_route_get_saddr(struct net *net, struct rt6_info *rt,
+			const struct in6_addr *daddr, unsigned int prefs,
+			struct in6_addr *saddr);
 
-extern struct rt6_info		*rt6_lookup(struct net *net,
-					    const struct in6_addr *daddr,
-					    const struct in6_addr *saddr,
-					    int oif, int flags);
+struct rt6_info *rt6_lookup(struct net *net, const struct in6_addr *daddr,
+			    const struct in6_addr *saddr, int oif, int flags);
 
-extern struct dst_entry *icmp6_dst_alloc(struct net_device *dev,
-					 struct flowi6 *fl6);
-extern int icmp6_dst_gc(void);
+struct dst_entry *icmp6_dst_alloc(struct net_device *dev, struct flowi6 *fl6);
+int icmp6_dst_gc(void);
 
-extern void fib6_force_start_gc(struct net *net);
+void fib6_force_start_gc(struct net *net);
 
-extern struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
-					   const struct in6_addr *addr,
-					   bool anycast);
+struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev,
+				    const struct in6_addr *addr, bool anycast);
 
 /*
  *	support functions for ND
  *
  */
-extern struct rt6_info *	rt6_get_dflt_router(const struct in6_addr *addr,
-						    struct net_device *dev);
-extern struct rt6_info *	rt6_add_dflt_router(const struct in6_addr *gwaddr,
-						    struct net_device *dev,
-						    unsigned int pref);
-
-extern void			rt6_purge_dflt_routers(struct net *net);
-
-extern int			rt6_route_rcv(struct net_device *dev,
-					      u8 *opt, int len,
-					      const struct in6_addr *gwaddr);
-
-extern void ip6_update_pmtu(struct sk_buff *skb, struct net *net, __be32 mtu,
-			    int oif, u32 mark);
-extern void ip6_sk_update_pmtu(struct sk_buff *skb, struct sock *sk,
-			       __be32 mtu);
-extern void ip6_redirect(struct sk_buff *skb, struct net *net, int oif, u32 mark);
-extern void ip6_redirect_no_header(struct sk_buff *skb, struct net *net, int oif,
-				   u32 mark);
-extern void ip6_sk_redirect(struct sk_buff *skb, struct sock *sk);
+struct rt6_info *rt6_get_dflt_router(const struct in6_addr *addr,
+				     struct net_device *dev);
+struct rt6_info *rt6_add_dflt_router(const struct in6_addr *gwaddr,
+				     struct net_device *dev, unsigned int pref);
+
+void rt6_purge_dflt_routers(struct net *net);
+
+int rt6_route_rcv(struct net_device *dev, u8 *opt, int len,
+		  const struct in6_addr *gwaddr);
+
+void ip6_update_pmtu(struct sk_buff *skb, struct net *net, __be32 mtu, int oif,
+		     u32 mark);
+void ip6_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, __be32 mtu);
+void ip6_redirect(struct sk_buff *skb, struct net *net, int oif, u32 mark);
+void ip6_redirect_no_header(struct sk_buff *skb, struct net *net, int oif,
+			    u32 mark);
+void ip6_sk_redirect(struct sk_buff *skb, struct sock *sk);
 
 struct netlink_callback;
 
@@ -145,10 +133,10 @@ struct rt6_rtnl_dump_arg {
 	struct net *net;
 };
 
-extern int rt6_dump_route(struct rt6_info *rt, void *p_arg);
-extern void rt6_ifdown(struct net *net, struct net_device *dev);
-extern void rt6_mtu_change(struct net_device *dev, unsigned int mtu);
-extern void rt6_remove_prefsrc(struct inet6_ifaddr *ifp);
+int rt6_dump_route(struct rt6_info *rt, void *p_arg);
+void rt6_ifdown(struct net *net, struct net_device *dev);
+void rt6_mtu_change(struct net_device *dev, unsigned int mtu);
+void rt6_remove_prefsrc(struct inet6_ifaddr *ifp);
 
 
 /*
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h
index cbf2be37c91a..9922093f575e 100644
--- a/include/net/ip_fib.h
+++ b/include/net/ip_fib.h
@@ -165,7 +165,7 @@ struct fib_result_nl {
 #define FIB_TABLE_HASHSZ 2
 #endif
 
-extern __be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh);
+__be32 fib_info_update_nh_saddr(struct net *net, struct fib_nh *nh);
 
 #define FIB_RES_SADDR(net, res)				\
 	((FIB_RES_NH(res).nh_saddr_genid ==		\
@@ -187,14 +187,14 @@ struct fib_table {
 	unsigned long		tb_data[0];
 };
 
-extern int fib_table_lookup(struct fib_table *tb, const struct flowi4 *flp,
-			    struct fib_result *res, int fib_flags);
-extern int fib_table_insert(struct fib_table *, struct fib_config *);
-extern int fib_table_delete(struct fib_table *, struct fib_config *);
-extern int fib_table_dump(struct fib_table *table, struct sk_buff *skb,
-			  struct netlink_callback *cb);
-extern int fib_table_flush(struct fib_table *table);
-extern void fib_free_table(struct fib_table *tb);
+int fib_table_lookup(struct fib_table *tb, const struct flowi4 *flp,
+		     struct fib_result *res, int fib_flags);
+int fib_table_insert(struct fib_table *, struct fib_config *);
+int fib_table_delete(struct fib_table *, struct fib_config *);
+int fib_table_dump(struct fib_table *table, struct sk_buff *skb,
+		   struct netlink_callback *cb);
+int fib_table_flush(struct fib_table *table);
+void fib_free_table(struct fib_table *tb);
 
 
 
@@ -234,14 +234,13 @@ static inline int fib_lookup(struct net *net, const struct flowi4 *flp,
 }
 
 #else /* CONFIG_IP_MULTIPLE_TABLES */
-extern int __net_init fib4_rules_init(struct net *net);
-extern void __net_exit fib4_rules_exit(struct net *net);
+int __net_init fib4_rules_init(struct net *net);
+void __net_exit fib4_rules_exit(struct net *net);
 
-extern struct fib_table *fib_new_table(struct net *net, u32 id);
-extern struct fib_table *fib_get_table(struct net *net, u32 id);
+struct fib_table *fib_new_table(struct net *net, u32 id);
+struct fib_table *fib_get_table(struct net *net, u32 id);
 
-extern int __fib_lookup(struct net *net, struct flowi4 *flp,
-			struct fib_result *res);
+int __fib_lookup(struct net *net, struct flowi4 *flp, struct fib_result *res);
 
 static inline int fib_lookup(struct net *net, struct flowi4 *flp,
 			     struct fib_result *res)
@@ -269,12 +268,12 @@ static inline int fib_lookup(struct net *net, struct flowi4 *flp,
 
 /* Exported by fib_frontend.c */
 extern const struct nla_policy rtm_ipv4_policy[];
-extern void		ip_fib_init(void);
-extern __be32 fib_compute_spec_dst(struct sk_buff *skb);
-extern int fib_validate_source(struct sk_buff *skb, __be32 src, __be32 dst,
-			       u8 tos, int oif, struct net_device *dev,
-			       struct in_device *idev, u32 *itag);
-extern void fib_select_default(struct fib_result *res);
+void ip_fib_init(void);
+__be32 fib_compute_spec_dst(struct sk_buff *skb);
+int fib_validate_source(struct sk_buff *skb, __be32 src, __be32 dst,
+			u8 tos, int oif, struct net_device *dev,
+			struct in_device *idev, u32 *itag);
+void fib_select_default(struct fib_result *res);
 #ifdef CONFIG_IP_ROUTE_CLASSID
 static inline int fib_num_tclassid_users(struct net *net)
 {
@@ -288,15 +287,15 @@ static inline int fib_num_tclassid_users(struct net *net)
 #endif
 
 /* Exported by fib_semantics.c */
-extern int ip_fib_check_default(__be32 gw, struct net_device *dev);
-extern int fib_sync_down_dev(struct net_device *dev, int force);
-extern int fib_sync_down_addr(struct net *net, __be32 local);
-extern int fib_sync_up(struct net_device *dev);
-extern void fib_select_multipath(struct fib_result *res);
+int ip_fib_check_default(__be32 gw, struct net_device *dev);
+int fib_sync_down_dev(struct net_device *dev, int force);
+int fib_sync_down_addr(struct net *net, __be32 local);
+int fib_sync_up(struct net_device *dev);
+void fib_select_multipath(struct fib_result *res);
 
 /* Exported by fib_trie.c */
-extern void fib_trie_init(void);
-extern struct fib_table *fib_trie_table(u32 id);
+void fib_trie_init(void);
+struct fib_table *fib_trie_table(u32 id);
 
 static inline void fib_combine_itag(u32 *itag, const struct fib_result *res)
 {
@@ -314,7 +313,7 @@ static inline void fib_combine_itag(u32 *itag, const struct fib_result *res)
 #endif
 }
 
-extern void free_fib_info(struct fib_info *fi);
+void free_fib_info(struct fib_info *fi);
 
 static inline void fib_info_put(struct fib_info *fi)
 {
@@ -323,8 +322,8 @@ static inline void fib_info_put(struct fib_info *fi)
 }
 
 #ifdef CONFIG_PROC_FS
-extern int __net_init  fib_proc_init(struct net *net);
-extern void __net_exit fib_proc_exit(struct net *net);
+int __net_init fib_proc_init(struct net *net);
+void __net_exit fib_proc_exit(struct net *net);
 #else
 static inline int fib_proc_init(struct net *net)
 {
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index f0d70f066f3d..b6fd378c09c8 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -236,7 +236,7 @@ static inline int ip_vs_addr_equal(int af, const union nf_inet_addr *a,
 #ifdef CONFIG_IP_VS_DEBUG
 #include <linux/net.h>
 
-extern int ip_vs_get_debug_level(void);
+int ip_vs_get_debug_level(void);
 
 static inline const char *ip_vs_dbg_addr(int af, char *buf, size_t buf_len,
 					 const union nf_inet_addr *addr,
@@ -532,9 +532,9 @@ struct ip_vs_proto_data {
 	struct tcp_states_t	*tcp_state_table;
 };
 
-extern struct ip_vs_protocol   *ip_vs_proto_get(unsigned short proto);
-extern struct ip_vs_proto_data *ip_vs_proto_data_get(struct net *net,
-						     unsigned short proto);
+struct ip_vs_protocol   *ip_vs_proto_get(unsigned short proto);
+struct ip_vs_proto_data *ip_vs_proto_data_get(struct net *net,
+					      unsigned short proto);
 
 struct ip_vs_conn_param {
 	struct net			*net;
@@ -1176,8 +1176,8 @@ static inline int sysctl_backup_only(struct netns_ipvs *ipvs)
  *      IPVS core functions
  *      (from ip_vs_core.c)
  */
-extern const char *ip_vs_proto_name(unsigned int proto);
-extern void ip_vs_init_hash_table(struct list_head *table, int rows);
+const char *ip_vs_proto_name(unsigned int proto);
+void ip_vs_init_hash_table(struct list_head *table, int rows);
 #define IP_VS_INIT_HASH_TABLE(t) ip_vs_init_hash_table((t), ARRAY_SIZE((t)))
 
 #define IP_VS_APP_TYPE_FTP	1
@@ -1240,22 +1240,22 @@ static inline void __ip_vs_conn_put(struct ip_vs_conn *cp)
 	smp_mb__before_atomic_dec();
 	atomic_dec(&cp->refcnt);
 }
-extern void ip_vs_conn_put(struct ip_vs_conn *cp);
-extern void ip_vs_conn_fill_cport(struct ip_vs_conn *cp, __be16 cport);
+void ip_vs_conn_put(struct ip_vs_conn *cp);
+void ip_vs_conn_fill_cport(struct ip_vs_conn *cp, __be16 cport);
 
 struct ip_vs_conn *ip_vs_conn_new(const struct ip_vs_conn_param *p,
 				  const union nf_inet_addr *daddr,
 				  __be16 dport, unsigned int flags,
 				  struct ip_vs_dest *dest, __u32 fwmark);
-extern void ip_vs_conn_expire_now(struct ip_vs_conn *cp);
+void ip_vs_conn_expire_now(struct ip_vs_conn *cp);
 
-extern const char * ip_vs_state_name(__u16 proto, int state);
+const char *ip_vs_state_name(__u16 proto, int state);
 
-extern void ip_vs_tcp_conn_listen(struct net *net, struct ip_vs_conn *cp);
-extern int ip_vs_check_template(struct ip_vs_conn *ct);
-extern void ip_vs_random_dropentry(struct net *net);
-extern int ip_vs_conn_init(void);
-extern void ip_vs_conn_cleanup(void);
+void ip_vs_tcp_conn_listen(struct net *net, struct ip_vs_conn *cp);
+int ip_vs_check_template(struct ip_vs_conn *ct);
+void ip_vs_random_dropentry(struct net *net);
+int ip_vs_conn_init(void);
+void ip_vs_conn_cleanup(void);
 
 static inline void ip_vs_control_del(struct ip_vs_conn *cp)
 {
@@ -1320,37 +1320,36 @@ ip_vs_control_add(struct ip_vs_conn *cp, struct ip_vs_conn *ctl_cp)
 /*
  * IPVS netns init & cleanup functions
  */
-extern int ip_vs_estimator_net_init(struct net *net);
-extern int ip_vs_control_net_init(struct net *net);
-extern int ip_vs_protocol_net_init(struct net *net);
-extern int ip_vs_app_net_init(struct net *net);
-extern int ip_vs_conn_net_init(struct net *net);
-extern int ip_vs_sync_net_init(struct net *net);
-extern void ip_vs_conn_net_cleanup(struct net *net);
-extern void ip_vs_app_net_cleanup(struct net *net);
-extern void ip_vs_protocol_net_cleanup(struct net *net);
-extern void ip_vs_control_net_cleanup(struct net *net);
-extern void ip_vs_estimator_net_cleanup(struct net *net);
-extern void ip_vs_sync_net_cleanup(struct net *net);
-extern void ip_vs_service_net_cleanup(struct net *net);
+int ip_vs_estimator_net_init(struct net *net);
+int ip_vs_control_net_init(struct net *net);
+int ip_vs_protocol_net_init(struct net *net);
+int ip_vs_app_net_init(struct net *net);
+int ip_vs_conn_net_init(struct net *net);
+int ip_vs_sync_net_init(struct net *net);
+void ip_vs_conn_net_cleanup(struct net *net);
+void ip_vs_app_net_cleanup(struct net *net);
+void ip_vs_protocol_net_cleanup(struct net *net);
+void ip_vs_control_net_cleanup(struct net *net);
+void ip_vs_estimator_net_cleanup(struct net *net);
+void ip_vs_sync_net_cleanup(struct net *net);
+void ip_vs_service_net_cleanup(struct net *net);
 
 /*
  *      IPVS application functions
  *      (from ip_vs_app.c)
  */
 #define IP_VS_APP_MAX_PORTS  8
-extern struct ip_vs_app *register_ip_vs_app(struct net *net,
-					    struct ip_vs_app *app);
-extern void unregister_ip_vs_app(struct net *net, struct ip_vs_app *app);
-extern int ip_vs_bind_app(struct ip_vs_conn *cp, struct ip_vs_protocol *pp);
-extern void ip_vs_unbind_app(struct ip_vs_conn *cp);
-extern int register_ip_vs_app_inc(struct net *net, struct ip_vs_app *app,
-				  __u16 proto, __u16 port);
-extern int ip_vs_app_inc_get(struct ip_vs_app *inc);
-extern void ip_vs_app_inc_put(struct ip_vs_app *inc);
-
-extern int ip_vs_app_pkt_out(struct ip_vs_conn *, struct sk_buff *skb);
-extern int ip_vs_app_pkt_in(struct ip_vs_conn *, struct sk_buff *skb);
+struct ip_vs_app *register_ip_vs_app(struct net *net, struct ip_vs_app *app);
+void unregister_ip_vs_app(struct net *net, struct ip_vs_app *app);
+int ip_vs_bind_app(struct ip_vs_conn *cp, struct ip_vs_protocol *pp);
+void ip_vs_unbind_app(struct ip_vs_conn *cp);
+int register_ip_vs_app_inc(struct net *net, struct ip_vs_app *app, __u16 proto,
+			   __u16 port);
+int ip_vs_app_inc_get(struct ip_vs_app *inc);
+void ip_vs_app_inc_put(struct ip_vs_app *inc);
+
+int ip_vs_app_pkt_out(struct ip_vs_conn *, struct sk_buff *skb);
+int ip_vs_app_pkt_in(struct ip_vs_conn *, struct sk_buff *skb);
 
 int register_ip_vs_pe(struct ip_vs_pe *pe);
 int unregister_ip_vs_pe(struct ip_vs_pe *pe);
@@ -1371,17 +1370,15 @@ struct ip_vs_pe *__ip_vs_pe_getbyname(const char *pe_name);
 /*
  *	IPVS protocol functions (from ip_vs_proto.c)
  */
-extern int ip_vs_protocol_init(void);
-extern void ip_vs_protocol_cleanup(void);
-extern void ip_vs_protocol_timeout_change(struct netns_ipvs *ipvs, int flags);
-extern int *ip_vs_create_timeout_table(int *table, int size);
-extern int
-ip_vs_set_state_timeout(int *table, int num, const char *const *names,
-			const char *name, int to);
-extern void
-ip_vs_tcpudp_debug_packet(int af, struct ip_vs_protocol *pp,
-			  const struct sk_buff *skb,
-			  int offset, const char *msg);
+int ip_vs_protocol_init(void);
+void ip_vs_protocol_cleanup(void);
+void ip_vs_protocol_timeout_change(struct netns_ipvs *ipvs, int flags);
+int *ip_vs_create_timeout_table(int *table, int size);
+int ip_vs_set_state_timeout(int *table, int num, const char *const *names,
+			    const char *name, int to);
+void ip_vs_tcpudp_debug_packet(int af, struct ip_vs_protocol *pp,
+			       const struct sk_buff *skb, int offset,
+			       const char *msg);
 
 extern struct ip_vs_protocol ip_vs_protocol_tcp;
 extern struct ip_vs_protocol ip_vs_protocol_udp;
@@ -1394,22 +1391,22 @@ extern struct ip_vs_protocol ip_vs_protocol_sctp;
  *      Registering/unregistering scheduler functions
  *      (from ip_vs_sched.c)
  */
-extern int register_ip_vs_scheduler(struct ip_vs_scheduler *scheduler);
-extern int unregister_ip_vs_scheduler(struct ip_vs_scheduler *scheduler);
-extern int ip_vs_bind_scheduler(struct ip_vs_service *svc,
-				struct ip_vs_scheduler *scheduler);
-extern void ip_vs_unbind_scheduler(struct ip_vs_service *svc,
-				   struct ip_vs_scheduler *sched);
-extern struct ip_vs_scheduler *ip_vs_scheduler_get(const char *sched_name);
-extern void ip_vs_scheduler_put(struct ip_vs_scheduler *scheduler);
-extern struct ip_vs_conn *
+int register_ip_vs_scheduler(struct ip_vs_scheduler *scheduler);
+int unregister_ip_vs_scheduler(struct ip_vs_scheduler *scheduler);
+int ip_vs_bind_scheduler(struct ip_vs_service *svc,
+			 struct ip_vs_scheduler *scheduler);
+void ip_vs_unbind_scheduler(struct ip_vs_service *svc,
+			    struct ip_vs_scheduler *sched);
+struct ip_vs_scheduler *ip_vs_scheduler_get(const char *sched_name);
+void ip_vs_scheduler_put(struct ip_vs_scheduler *scheduler);
+struct ip_vs_conn *
 ip_vs_schedule(struct ip_vs_service *svc, struct sk_buff *skb,
 	       struct ip_vs_proto_data *pd, int *ignored,
 	       struct ip_vs_iphdr *iph);
-extern int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
-			struct ip_vs_proto_data *pd, struct ip_vs_iphdr *iph);
+int ip_vs_leave(struct ip_vs_service *svc, struct sk_buff *skb,
+		struct ip_vs_proto_data *pd, struct ip_vs_iphdr *iph);
 
-extern void ip_vs_scheduler_err(struct ip_vs_service *svc, const char *msg);
+void ip_vs_scheduler_err(struct ip_vs_service *svc, const char *msg);
 
 
 /*
@@ -1418,25 +1415,24 @@ extern void ip_vs_scheduler_err(struct ip_vs_service *svc, const char *msg);
 extern struct ip_vs_stats ip_vs_stats;
 extern int sysctl_ip_vs_sync_ver;
 
-extern struct ip_vs_service *
+struct ip_vs_service *
 ip_vs_service_find(struct net *net, int af, __u32 fwmark, __u16 protocol,
 		  const union nf_inet_addr *vaddr, __be16 vport);
 
-extern bool
-ip_vs_has_real_service(struct net *net, int af, __u16 protocol,
-		       const union nf_inet_addr *daddr, __be16 dport);
-
-extern int ip_vs_use_count_inc(void);
-extern void ip_vs_use_count_dec(void);
-extern int ip_vs_register_nl_ioctl(void);
-extern void ip_vs_unregister_nl_ioctl(void);
-extern int ip_vs_control_init(void);
-extern void ip_vs_control_cleanup(void);
-extern struct ip_vs_dest *
+bool ip_vs_has_real_service(struct net *net, int af, __u16 protocol,
+			    const union nf_inet_addr *daddr, __be16 dport);
+
+int ip_vs_use_count_inc(void);
+void ip_vs_use_count_dec(void);
+int ip_vs_register_nl_ioctl(void);
+void ip_vs_unregister_nl_ioctl(void);
+int ip_vs_control_init(void);
+void ip_vs_control_cleanup(void);
+struct ip_vs_dest *
 ip_vs_find_dest(struct net *net, int af, const union nf_inet_addr *daddr,
 		__be16 dport, const union nf_inet_addr *vaddr, __be16 vport,
 		__u16 protocol, __u32 fwmark, __u32 flags);
-extern void ip_vs_try_bind_dest(struct ip_vs_conn *cp);
+void ip_vs_try_bind_dest(struct ip_vs_conn *cp);
 
 static inline void ip_vs_dest_hold(struct ip_vs_dest *dest)
 {
@@ -1453,56 +1449,49 @@ static inline void ip_vs_dest_put(struct ip_vs_dest *dest)
  *      IPVS sync daemon data and function prototypes
  *      (from ip_vs_sync.c)
  */
-extern int start_sync_thread(struct net *net, int state, char *mcast_ifn,
-			     __u8 syncid);
-extern int stop_sync_thread(struct net *net, int state);
-extern void ip_vs_sync_conn(struct net *net, struct ip_vs_conn *cp, int pkts);
-
+int start_sync_thread(struct net *net, int state, char *mcast_ifn, __u8 syncid);
+int stop_sync_thread(struct net *net, int state);
+void ip_vs_sync_conn(struct net *net, struct ip_vs_conn *cp, int pkts);
 
 /*
  *      IPVS rate estimator prototypes (from ip_vs_est.c)
  */
-extern void ip_vs_start_estimator(struct net *net, struct ip_vs_stats *stats);
-extern void ip_vs_stop_estimator(struct net *net, struct ip_vs_stats *stats);
-extern void ip_vs_zero_estimator(struct ip_vs_stats *stats);
-extern void ip_vs_read_estimator(struct ip_vs_stats_user *dst,
-				 struct ip_vs_stats *stats);
+void ip_vs_start_estimator(struct net *net, struct ip_vs_stats *stats);
+void ip_vs_stop_estimator(struct net *net, struct ip_vs_stats *stats);
+void ip_vs_zero_estimator(struct ip_vs_stats *stats);
+void ip_vs_read_estimator(struct ip_vs_stats_user *dst,
+			  struct ip_vs_stats *stats);
 
 /*
  *	Various IPVS packet transmitters (from ip_vs_xmit.c)
  */
-extern int ip_vs_null_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
-			   struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph);
-extern int ip_vs_bypass_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
-			     struct ip_vs_protocol *pp,
-			     struct ip_vs_iphdr *iph);
-extern int ip_vs_nat_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
-			  struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph);
-extern int ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
-			     struct ip_vs_protocol *pp,
-			     struct ip_vs_iphdr *iph);
-extern int ip_vs_dr_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
-			 struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph);
-extern int ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
-			   struct ip_vs_protocol *pp, int offset,
-			   unsigned int hooknum, struct ip_vs_iphdr *iph);
-extern void ip_vs_dest_dst_rcu_free(struct rcu_head *head);
+int ip_vs_null_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
+		    struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph);
+int ip_vs_bypass_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
+		      struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph);
+int ip_vs_nat_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
+		   struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph);
+int ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
+		      struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph);
+int ip_vs_dr_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
+		  struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph);
+int ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
+		    struct ip_vs_protocol *pp, int offset,
+		    unsigned int hooknum, struct ip_vs_iphdr *iph);
+void ip_vs_dest_dst_rcu_free(struct rcu_head *head);
 
 #ifdef CONFIG_IP_VS_IPV6
-extern int ip_vs_bypass_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
-				struct ip_vs_protocol *pp,
-				struct ip_vs_iphdr *iph);
-extern int ip_vs_nat_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
-			     struct ip_vs_protocol *pp,
-			     struct ip_vs_iphdr *iph);
-extern int ip_vs_tunnel_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
-				struct ip_vs_protocol *pp,
-				struct ip_vs_iphdr *iph);
-extern int ip_vs_dr_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
-			    struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph);
-extern int ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
-			      struct ip_vs_protocol *pp, int offset,
-			      unsigned int hooknum, struct ip_vs_iphdr *iph);
+int ip_vs_bypass_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
+			 struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph);
+int ip_vs_nat_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
+		      struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph);
+int ip_vs_tunnel_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
+			 struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph);
+int ip_vs_dr_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
+		     struct ip_vs_protocol *pp, struct ip_vs_iphdr *iph);
+int ip_vs_icmp_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp,
+		       struct ip_vs_protocol *pp, int offset,
+		       unsigned int hooknum, struct ip_vs_iphdr *iph);
 #endif
 
 #ifdef CONFIG_SYSCTL
@@ -1551,15 +1540,15 @@ static inline char ip_vs_fwd_tag(struct ip_vs_conn *cp)
 	return fwd;
 }
 
-extern void ip_vs_nat_icmp(struct sk_buff *skb, struct ip_vs_protocol *pp,
-			   struct ip_vs_conn *cp, int dir);
+void ip_vs_nat_icmp(struct sk_buff *skb, struct ip_vs_protocol *pp,
+		    struct ip_vs_conn *cp, int dir);
 
 #ifdef CONFIG_IP_VS_IPV6
-extern void ip_vs_nat_icmp_v6(struct sk_buff *skb, struct ip_vs_protocol *pp,
-			      struct ip_vs_conn *cp, int dir);
+void ip_vs_nat_icmp_v6(struct sk_buff *skb, struct ip_vs_protocol *pp,
+		       struct ip_vs_conn *cp, int dir);
 #endif
 
-extern __sum16 ip_vs_checksum_complete(struct sk_buff *skb, int offset);
+__sum16 ip_vs_checksum_complete(struct sk_buff *skb, int offset);
 
 static inline __wsum ip_vs_check_diff4(__be32 old, __be32 new, __wsum oldsum)
 {
@@ -1618,13 +1607,13 @@ static inline int ip_vs_conntrack_enabled(struct netns_ipvs *ipvs)
 #endif
 }
 
-extern void ip_vs_update_conntrack(struct sk_buff *skb, struct ip_vs_conn *cp,
-				   int outin);
-extern int ip_vs_confirm_conntrack(struct sk_buff *skb);
-extern void ip_vs_nfct_expect_related(struct sk_buff *skb, struct nf_conn *ct,
-				      struct ip_vs_conn *cp, u_int8_t proto,
-				      const __be16 port, int from_rs);
-extern void ip_vs_conn_drop_conntrack(struct ip_vs_conn *cp);
+void ip_vs_update_conntrack(struct sk_buff *skb, struct ip_vs_conn *cp,
+			    int outin);
+int ip_vs_confirm_conntrack(struct sk_buff *skb);
+void ip_vs_nfct_expect_related(struct sk_buff *skb, struct nf_conn *ct,
+			       struct ip_vs_conn *cp, u_int8_t proto,
+			       const __be16 port, int from_rs);
+void ip_vs_conn_drop_conntrack(struct ip_vs_conn *cp);
 
 #else
 
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index bbf1c8fb8511..fe1c7f6c9217 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -244,14 +244,14 @@ struct ipv6_fl_socklist {
 	struct rcu_head			rcu;
 };
 
-extern struct ip6_flowlabel	*fl6_sock_lookup(struct sock *sk, __be32 label);
-extern struct ipv6_txoptions	*fl6_merge_options(struct ipv6_txoptions * opt_space,
-						   struct ip6_flowlabel * fl,
-						   struct ipv6_txoptions * fopt);
-extern void			fl6_free_socklist(struct sock *sk);
-extern int			ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen);
-extern int			ip6_flowlabel_init(void);
-extern void			ip6_flowlabel_cleanup(void);
+struct ip6_flowlabel *fl6_sock_lookup(struct sock *sk, __be32 label);
+struct ipv6_txoptions *fl6_merge_options(struct ipv6_txoptions *opt_space,
+					 struct ip6_flowlabel *fl,
+					 struct ipv6_txoptions *fopt);
+void fl6_free_socklist(struct sock *sk);
+int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen);
+int ip6_flowlabel_init(void);
+void ip6_flowlabel_cleanup(void);
 
 static inline void fl6_sock_release(struct ip6_flowlabel *fl)
 {
@@ -259,7 +259,7 @@ static inline void fl6_sock_release(struct ip6_flowlabel *fl)
 		atomic_dec(&fl->users);
 }
 
-extern void icmpv6_notify(struct sk_buff *skb, u8 type, u8 code, __be32 info);
+void icmpv6_notify(struct sk_buff *skb, u8 type, u8 code, __be32 info);
 
 int icmpv6_push_pending_frames(struct sock *sk, struct flowi6 *fl6,
 			       struct icmp6hdr *thdr, int len);
@@ -267,19 +267,21 @@ int icmpv6_push_pending_frames(struct sock *sk, struct flowi6 *fl6,
 struct dst_entry *icmpv6_route_lookup(struct net *net, struct sk_buff *skb,
 				      struct sock *sk, struct flowi6 *fl6);
 
-extern int 			ip6_ra_control(struct sock *sk, int sel);
+int ip6_ra_control(struct sock *sk, int sel);
 
-extern int			ipv6_parse_hopopts(struct sk_buff *skb);
+int ipv6_parse_hopopts(struct sk_buff *skb);
 
-extern struct ipv6_txoptions *  ipv6_dup_options(struct sock *sk, struct ipv6_txoptions *opt);
-extern struct ipv6_txoptions *	ipv6_renew_options(struct sock *sk, struct ipv6_txoptions *opt,
-						   int newtype,
-						   struct ipv6_opt_hdr __user *newopt,
-						   int newoptlen);
+struct ipv6_txoptions *ipv6_dup_options(struct sock *sk,
+					struct ipv6_txoptions *opt);
+struct ipv6_txoptions *ipv6_renew_options(struct sock *sk,
+					  struct ipv6_txoptions *opt,
+					  int newtype,
+					  struct ipv6_opt_hdr __user *newopt,
+					  int newoptlen);
 struct ipv6_txoptions *ipv6_fixup_options(struct ipv6_txoptions *opt_space,
 					  struct ipv6_txoptions *opt);
 
-extern bool ipv6_opt_accepted(const struct sock *sk, const struct sk_buff *skb);
+bool ipv6_opt_accepted(const struct sock *sk, const struct sk_buff *skb);
 
 static inline bool ipv6_accept_ra(struct inet6_dev *idev)
 {
@@ -306,7 +308,7 @@ static inline int ip6_frag_mem(struct net *net)
 #define IPV6_FRAG_LOW_THRESH	(3 * 1024*1024)	/* 3145728 */
 #define IPV6_FRAG_TIMEOUT	(60 * HZ)	/* 60 seconds */
 
-extern int __ipv6_addr_type(const struct in6_addr *addr);
+int __ipv6_addr_type(const struct in6_addr *addr);
 static inline int ipv6_addr_type(const struct in6_addr *addr)
 {
 	return __ipv6_addr_type(addr) & 0xffff;
@@ -656,9 +658,9 @@ static inline int ipv6_addr_diff(const struct in6_addr *a1, const struct in6_add
 	return __ipv6_addr_diff(a1, a2, sizeof(struct in6_addr));
 }
 
-extern void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt);
+void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt);
 
-extern int ip6_dst_hoplimit(struct dst_entry *dst);
+int ip6_dst_hoplimit(struct dst_entry *dst);
 
 /*
  *	Header manipulation
@@ -682,83 +684,65 @@ static inline __be32 ip6_flowinfo(const struct ipv6hdr *hdr)
  *	rcv function (called from netdevice level)
  */
 
-extern int			ipv6_rcv(struct sk_buff *skb, 
-					 struct net_device *dev, 
-					 struct packet_type *pt,
-					 struct net_device *orig_dev);
+int ipv6_rcv(struct sk_buff *skb, struct net_device *dev,
+	     struct packet_type *pt, struct net_device *orig_dev);
 
-extern int			ip6_rcv_finish(struct sk_buff *skb);
+int ip6_rcv_finish(struct sk_buff *skb);
 
 /*
  *	upper-layer output functions
  */
-extern int			ip6_xmit(struct sock *sk,
-					 struct sk_buff *skb,
-					 struct flowi6 *fl6,
-					 struct ipv6_txoptions *opt,
-					 int tclass);
-
-extern int			ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr);
-
-extern int			ip6_append_data(struct sock *sk,
-						int getfrag(void *from, char *to, int offset, int len, int odd, struct sk_buff *skb),
-		    				void *from,
-						int length,
-						int transhdrlen,
-		      				int hlimit,
-		      				int tclass,
-						struct ipv6_txoptions *opt,
-						struct flowi6 *fl6,
-						struct rt6_info *rt,
-						unsigned int flags,
-						int dontfrag);
-
-extern int			ip6_push_pending_frames(struct sock *sk);
-
-extern void			ip6_flush_pending_frames(struct sock *sk);
-
-extern int			ip6_dst_lookup(struct sock *sk,
-					       struct dst_entry **dst,
-					       struct flowi6 *fl6);
-extern struct dst_entry *	ip6_dst_lookup_flow(struct sock *sk,
-						    struct flowi6 *fl6,
-						    const struct in6_addr *final_dst,
-						    bool can_sleep);
-extern struct dst_entry *	ip6_sk_dst_lookup_flow(struct sock *sk,
-						       struct flowi6 *fl6,
-						       const struct in6_addr *final_dst,
-						       bool can_sleep);
-extern struct dst_entry *	ip6_blackhole_route(struct net *net,
-						    struct dst_entry *orig_dst);
+int ip6_xmit(struct sock *sk, struct sk_buff *skb, struct flowi6 *fl6,
+	     struct ipv6_txoptions *opt, int tclass);
+
+int ip6_find_1stfragopt(struct sk_buff *skb, u8 **nexthdr);
+
+int ip6_append_data(struct sock *sk,
+		    int getfrag(void *from, char *to, int offset, int len,
+				int odd, struct sk_buff *skb),
+		    void *from, int length, int transhdrlen, int hlimit,
+		    int tclass, struct ipv6_txoptions *opt, struct flowi6 *fl6,
+		    struct rt6_info *rt, unsigned int flags, int dontfrag);
+
+int ip6_push_pending_frames(struct sock *sk);
+
+void ip6_flush_pending_frames(struct sock *sk);
+
+int ip6_dst_lookup(struct sock *sk, struct dst_entry **dst, struct flowi6 *fl6);
+struct dst_entry *ip6_dst_lookup_flow(struct sock *sk, struct flowi6 *fl6,
+				      const struct in6_addr *final_dst,
+				      bool can_sleep);
+struct dst_entry *ip6_sk_dst_lookup_flow(struct sock *sk, struct flowi6 *fl6,
+					 const struct in6_addr *final_dst,
+					 bool can_sleep);
+struct dst_entry *ip6_blackhole_route(struct net *net,
+				      struct dst_entry *orig_dst);
 
 /*
  *	skb processing functions
  */
 
-extern int			ip6_output(struct sk_buff *skb);
-extern int			ip6_forward(struct sk_buff *skb);
-extern int			ip6_input(struct sk_buff *skb);
-extern int			ip6_mc_input(struct sk_buff *skb);
+int ip6_output(struct sk_buff *skb);
+int ip6_forward(struct sk_buff *skb);
+int ip6_input(struct sk_buff *skb);
+int ip6_mc_input(struct sk_buff *skb);
 
-extern int			__ip6_local_out(struct sk_buff *skb);
-extern int			ip6_local_out(struct sk_buff *skb);
+int __ip6_local_out(struct sk_buff *skb);
+int ip6_local_out(struct sk_buff *skb);
 
 /*
  *	Extension header (options) processing
  */
 
-extern void 			ipv6_push_nfrag_opts(struct sk_buff *skb,
-						     struct ipv6_txoptions *opt,
-						     u8 *proto,
-						     struct in6_addr **daddr_p);
-extern void			ipv6_push_frag_opts(struct sk_buff *skb,
-						    struct ipv6_txoptions *opt,
-						    u8 *proto);
+void ipv6_push_nfrag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt,
+			  u8 *proto, struct in6_addr **daddr_p);
+void ipv6_push_frag_opts(struct sk_buff *skb, struct ipv6_txoptions *opt,
+			 u8 *proto);
 
-extern int			ipv6_skip_exthdr(const struct sk_buff *, int start,
-					         u8 *nexthdrp, __be16 *frag_offp);
+int ipv6_skip_exthdr(const struct sk_buff *, int start, u8 *nexthdrp,
+		     __be16 *frag_offp);
 
-extern bool			ipv6_ext_hdr(u8 nexthdr);
+bool ipv6_ext_hdr(u8 nexthdr);
 
 enum {
 	IP6_FH_F_FRAG		= (1 << 0),
@@ -767,57 +751,44 @@ enum {
 };
 
 /* find specified header and get offset to it */
-extern int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
-			 int target, unsigned short *fragoff, int *fragflg);
+int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset, int target,
+		  unsigned short *fragoff, int *fragflg);
 
-extern int ipv6_find_tlv(struct sk_buff *skb, int offset, int type);
+int ipv6_find_tlv(struct sk_buff *skb, int offset, int type);
 
-extern struct in6_addr *fl6_update_dst(struct flowi6 *fl6,
-				       const struct ipv6_txoptions *opt,
-				       struct in6_addr *orig);
+struct in6_addr *fl6_update_dst(struct flowi6 *fl6,
+				const struct ipv6_txoptions *opt,
+				struct in6_addr *orig);
 
 /*
  *	socket options (ipv6_sockglue.c)
  */
 
-extern int			ipv6_setsockopt(struct sock *sk, int level, 
-						int optname,
-						char __user *optval, 
-						unsigned int optlen);
-extern int			ipv6_getsockopt(struct sock *sk, int level, 
-						int optname,
-						char __user *optval, 
-						int __user *optlen);
-extern int			compat_ipv6_setsockopt(struct sock *sk,
-						int level,
-						int optname,
-						char __user *optval,
-						unsigned int optlen);
-extern int			compat_ipv6_getsockopt(struct sock *sk,
-						int level,
-						int optname,
-						char __user *optval,
-						int __user *optlen);
-
-extern int			ip6_datagram_connect(struct sock *sk, 
-						     struct sockaddr *addr, int addr_len);
-
-extern int 			ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len);
-extern int 			ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len);
-extern void			ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err, __be16 port,
-						u32 info, u8 *payload);
-extern void			ipv6_local_error(struct sock *sk, int err, struct flowi6 *fl6, u32 info);
-extern void			ipv6_local_rxpmtu(struct sock *sk, struct flowi6 *fl6, u32 mtu);
-
-extern int inet6_release(struct socket *sock);
-extern int inet6_bind(struct socket *sock, struct sockaddr *uaddr, 
-		      int addr_len);
-extern int inet6_getname(struct socket *sock, struct sockaddr *uaddr,
-			 int *uaddr_len, int peer);
-extern int inet6_ioctl(struct socket *sock, unsigned int cmd, 
-		       unsigned long arg);
-
-extern int inet6_hash_connect(struct inet_timewait_death_row *death_row,
+int ipv6_setsockopt(struct sock *sk, int level, int optname,
+		    char __user *optval, unsigned int optlen);
+int ipv6_getsockopt(struct sock *sk, int level, int optname,
+		    char __user *optval, int __user *optlen);
+int compat_ipv6_setsockopt(struct sock *sk, int level, int optname,
+			   char __user *optval, unsigned int optlen);
+int compat_ipv6_getsockopt(struct sock *sk, int level, int optname,
+			   char __user *optval, int __user *optlen);
+
+int ip6_datagram_connect(struct sock *sk, struct sockaddr *addr, int addr_len);
+
+int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len);
+int ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len);
+void ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err, __be16 port,
+		     u32 info, u8 *payload);
+void ipv6_local_error(struct sock *sk, int err, struct flowi6 *fl6, u32 info);
+void ipv6_local_rxpmtu(struct sock *sk, struct flowi6 *fl6, u32 mtu);
+
+int inet6_release(struct socket *sock);
+int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len);
+int inet6_getname(struct socket *sock, struct sockaddr *uaddr, int *uaddr_len,
+		  int peer);
+int inet6_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
+
+int inet6_hash_connect(struct inet_timewait_death_row *death_row,
 			      struct sock *sk);
 
 /*
@@ -829,30 +800,29 @@ extern const struct proto_ops inet6_dgram_ops;
 struct group_source_req;
 struct group_filter;
 
-extern int ip6_mc_source(int add, int omode, struct sock *sk,
-			 struct group_source_req *pgsr);
-extern int ip6_mc_msfilter(struct sock *sk, struct group_filter *gsf);
-extern int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf,
-			 struct group_filter __user *optval,
-			 int __user *optlen);
-extern unsigned int inet6_hash_frag(__be32 id, const struct in6_addr *saddr,
-				    const struct in6_addr *daddr, u32 rnd);
+int ip6_mc_source(int add, int omode, struct sock *sk,
+		  struct group_source_req *pgsr);
+int ip6_mc_msfilter(struct sock *sk, struct group_filter *gsf);
+int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf,
+		  struct group_filter __user *optval, int __user *optlen);
+unsigned int inet6_hash_frag(__be32 id, const struct in6_addr *saddr,
+			     const struct in6_addr *daddr, u32 rnd);
 
 #ifdef CONFIG_PROC_FS
-extern int  ac6_proc_init(struct net *net);
-extern void ac6_proc_exit(struct net *net);
-extern int  raw6_proc_init(void);
-extern void raw6_proc_exit(void);
-extern int  tcp6_proc_init(struct net *net);
-extern void tcp6_proc_exit(struct net *net);
-extern int  udp6_proc_init(struct net *net);
-extern void udp6_proc_exit(struct net *net);
-extern int  udplite6_proc_init(void);
-extern void udplite6_proc_exit(void);
-extern int  ipv6_misc_proc_init(void);
-extern void ipv6_misc_proc_exit(void);
-extern int snmp6_register_dev(struct inet6_dev *idev);
-extern int snmp6_unregister_dev(struct inet6_dev *idev);
+int ac6_proc_init(struct net *net);
+void ac6_proc_exit(struct net *net);
+int raw6_proc_init(void);
+void raw6_proc_exit(void);
+int tcp6_proc_init(struct net *net);
+void tcp6_proc_exit(struct net *net);
+int udp6_proc_init(struct net *net);
+void udp6_proc_exit(struct net *net);
+int udplite6_proc_init(void);
+void udplite6_proc_exit(void);
+int ipv6_misc_proc_init(void);
+void ipv6_misc_proc_exit(void);
+int snmp6_register_dev(struct inet6_dev *idev);
+int snmp6_unregister_dev(struct inet6_dev *idev);
 
 #else
 static inline int ac6_proc_init(struct net *net) { return 0; }
@@ -865,10 +835,10 @@ static inline int snmp6_unregister_dev(struct inet6_dev *idev) { return 0; }
 extern struct ctl_table ipv6_route_table_template[];
 extern struct ctl_table ipv6_icmp_table_template[];
 
-extern struct ctl_table *ipv6_icmp_sysctl_init(struct net *net);
-extern struct ctl_table *ipv6_route_sysctl_init(struct net *net);
-extern int ipv6_sysctl_register(void);
-extern void ipv6_sysctl_unregister(void);
+struct ctl_table *ipv6_icmp_sysctl_init(struct net *net);
+struct ctl_table *ipv6_route_sysctl_init(struct net *net);
+int ipv6_sysctl_register(void);
+void ipv6_sysctl_unregister(void);
 #endif
 
 #endif /* _NET_IPV6_H */
-- 
cgit 


From 9d03626a28fd8c14511c96826cb4ca2112fb7709 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sat, 21 Sep 2013 10:22:43 -0700
Subject: ipx.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/ipx.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/net/ipx.h b/include/net/ipx.h
index c1fec6b464cc..9e9e35465baf 100644
--- a/include/net/ipx.h
+++ b/include/net/ipx.h
@@ -123,23 +123,23 @@ extern struct list_head ipx_routes;
 extern rwlock_t ipx_routes_lock;
 
 extern struct list_head ipx_interfaces;
-extern struct ipx_interface *ipx_interfaces_head(void);
+struct ipx_interface *ipx_interfaces_head(void);
 extern spinlock_t ipx_interfaces_lock;
 
 extern struct ipx_interface *ipx_primary_net;
 
-extern int ipx_proc_init(void);
-extern void ipx_proc_exit(void);
+int ipx_proc_init(void);
+void ipx_proc_exit(void);
 
-extern const char *ipx_frame_name(__be16);
-extern const char *ipx_device_name(struct ipx_interface *intrfc);
+const char *ipx_frame_name(__be16);
+const char *ipx_device_name(struct ipx_interface *intrfc);
 
 static __inline__ void ipxitf_hold(struct ipx_interface *intrfc)
 {
 	atomic_inc(&intrfc->refcnt);
 }
 
-extern void ipxitf_down(struct ipx_interface *intrfc);
+void ipxitf_down(struct ipx_interface *intrfc);
 
 static __inline__ void ipxitf_put(struct ipx_interface *intrfc)
 {
-- 
cgit 


From cb7d3d71e986067d19d991d75bff07ca304c9084 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sat, 21 Sep 2013 10:22:44 -0700
Subject: lapb.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/lapb.h | 52 ++++++++++++++++++++++++++--------------------------
 1 file changed, 26 insertions(+), 26 deletions(-)

diff --git a/include/net/lapb.h b/include/net/lapb.h
index df892a94f2c6..9510f8725f03 100644
--- a/include/net/lapb.h
+++ b/include/net/lapb.h
@@ -105,40 +105,40 @@ struct lapb_cb {
 };
 
 /* lapb_iface.c */
-extern void lapb_connect_confirmation(struct lapb_cb *lapb, int);
-extern void lapb_connect_indication(struct lapb_cb *lapb, int);
-extern void lapb_disconnect_confirmation(struct lapb_cb *lapb, int);
-extern void lapb_disconnect_indication(struct lapb_cb *lapb, int);
-extern int  lapb_data_indication(struct lapb_cb *lapb, struct sk_buff *);
-extern int  lapb_data_transmit(struct lapb_cb *lapb, struct sk_buff *);
+void lapb_connect_confirmation(struct lapb_cb *lapb, int);
+void lapb_connect_indication(struct lapb_cb *lapb, int);
+void lapb_disconnect_confirmation(struct lapb_cb *lapb, int);
+void lapb_disconnect_indication(struct lapb_cb *lapb, int);
+int lapb_data_indication(struct lapb_cb *lapb, struct sk_buff *);
+int lapb_data_transmit(struct lapb_cb *lapb, struct sk_buff *);
 
 /* lapb_in.c */
-extern void lapb_data_input(struct lapb_cb *lapb, struct sk_buff *);
+void lapb_data_input(struct lapb_cb *lapb, struct sk_buff *);
 
 /* lapb_out.c */
-extern void lapb_kick(struct lapb_cb *lapb);
-extern void lapb_transmit_buffer(struct lapb_cb *lapb, struct sk_buff *, int);
-extern void lapb_establish_data_link(struct lapb_cb *lapb);
-extern void lapb_enquiry_response(struct lapb_cb *lapb);
-extern void lapb_timeout_response(struct lapb_cb *lapb);
-extern void lapb_check_iframes_acked(struct lapb_cb *lapb, unsigned short);
-extern void lapb_check_need_response(struct lapb_cb *lapb, int, int);
+void lapb_kick(struct lapb_cb *lapb);
+void lapb_transmit_buffer(struct lapb_cb *lapb, struct sk_buff *, int);
+void lapb_establish_data_link(struct lapb_cb *lapb);
+void lapb_enquiry_response(struct lapb_cb *lapb);
+void lapb_timeout_response(struct lapb_cb *lapb);
+void lapb_check_iframes_acked(struct lapb_cb *lapb, unsigned short);
+void lapb_check_need_response(struct lapb_cb *lapb, int, int);
 
 /* lapb_subr.c */
-extern void lapb_clear_queues(struct lapb_cb *lapb);
-extern void lapb_frames_acked(struct lapb_cb *lapb, unsigned short);
-extern void lapb_requeue_frames(struct lapb_cb *lapb);
-extern int  lapb_validate_nr(struct lapb_cb *lapb, unsigned short);
-extern int lapb_decode(struct lapb_cb *lapb, struct sk_buff *, struct lapb_frame *);
-extern void lapb_send_control(struct lapb_cb *lapb, int, int, int);
-extern void lapb_transmit_frmr(struct lapb_cb *lapb);
+void lapb_clear_queues(struct lapb_cb *lapb);
+void lapb_frames_acked(struct lapb_cb *lapb, unsigned short);
+void lapb_requeue_frames(struct lapb_cb *lapb);
+int lapb_validate_nr(struct lapb_cb *lapb, unsigned short);
+int lapb_decode(struct lapb_cb *lapb, struct sk_buff *, struct lapb_frame *);
+void lapb_send_control(struct lapb_cb *lapb, int, int, int);
+void lapb_transmit_frmr(struct lapb_cb *lapb);
 
 /* lapb_timer.c */
-extern void lapb_start_t1timer(struct lapb_cb *lapb);
-extern void lapb_start_t2timer(struct lapb_cb *lapb);
-extern void lapb_stop_t1timer(struct lapb_cb *lapb);
-extern void lapb_stop_t2timer(struct lapb_cb *lapb);
-extern int  lapb_t1timer_running(struct lapb_cb *lapb);
+void lapb_start_t1timer(struct lapb_cb *lapb);
+void lapb_start_t2timer(struct lapb_cb *lapb);
+void lapb_stop_t1timer(struct lapb_cb *lapb);
+void lapb_stop_t2timer(struct lapb_cb *lapb);
+int lapb_t1timer_running(struct lapb_cb *lapb);
 
 /*
  * Debug levels.
-- 
cgit 


From bf3c710f71a6144bd4d3bb9efb91099863debfb8 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sat, 21 Sep 2013 10:22:45 -0700
Subject: llc*.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/llc.h      |  50 ++++++------
 include/net/llc_c_ac.h | 190 ++++++++++++++++++++-------------------------
 include/net/llc_c_ev.h | 207 +++++++++++++++++++------------------------------
 include/net/llc_conn.h |  36 ++++-----
 include/net/llc_if.h   |   7 +-
 include/net/llc_pdu.h  |  33 ++++----
 include/net/llc_s_ac.h |  20 +++--
 include/net/llc_s_ev.h |  21 +++--
 include/net/llc_sap.h  |  22 +++---
 9 files changed, 253 insertions(+), 333 deletions(-)

diff --git a/include/net/llc.h b/include/net/llc.h
index 9e7d7f08ef77..68490cbc8a65 100644
--- a/include/net/llc.h
+++ b/include/net/llc.h
@@ -95,29 +95,29 @@ struct hlist_nulls_head *llc_sk_laddr_hash(struct llc_sap *sap,
 extern struct list_head llc_sap_list;
 extern spinlock_t llc_sap_list_lock;
 
-extern int llc_rcv(struct sk_buff *skb, struct net_device *dev,
-		   struct packet_type *pt, struct net_device *orig_dev);
+int llc_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt,
+	    struct net_device *orig_dev);
 
-extern int llc_mac_hdr_init(struct sk_buff *skb,
-			    const unsigned char *sa, const unsigned char *da);
+int llc_mac_hdr_init(struct sk_buff *skb, const unsigned char *sa,
+		     const unsigned char *da);
 
-extern void llc_add_pack(int type, void (*handler)(struct llc_sap *sap,
-						   struct sk_buff *skb));
-extern void llc_remove_pack(int type);
+void llc_add_pack(int type,
+		  void (*handler)(struct llc_sap *sap, struct sk_buff *skb));
+void llc_remove_pack(int type);
 
-extern void llc_set_station_handler(void (*handler)(struct sk_buff *skb));
+void llc_set_station_handler(void (*handler)(struct sk_buff *skb));
 
-extern struct llc_sap *llc_sap_open(unsigned char lsap,
-				    int (*rcv)(struct sk_buff *skb,
-					       struct net_device *dev,
-					       struct packet_type *pt,
-					       struct net_device *orig_dev));
+struct llc_sap *llc_sap_open(unsigned char lsap,
+			     int (*rcv)(struct sk_buff *skb,
+					struct net_device *dev,
+					struct packet_type *pt,
+					struct net_device *orig_dev));
 static inline void llc_sap_hold(struct llc_sap *sap)
 {
 	atomic_inc(&sap->refcnt);
 }
 
-extern void llc_sap_close(struct llc_sap *sap);
+void llc_sap_close(struct llc_sap *sap);
 
 static inline void llc_sap_put(struct llc_sap *sap)
 {
@@ -125,27 +125,27 @@ static inline void llc_sap_put(struct llc_sap *sap)
 		llc_sap_close(sap);
 }
 
-extern struct llc_sap *llc_sap_find(unsigned char sap_value);
+struct llc_sap *llc_sap_find(unsigned char sap_value);
 
-extern int llc_build_and_send_ui_pkt(struct llc_sap *sap, struct sk_buff *skb,
-				     unsigned char *dmac, unsigned char dsap);
+int llc_build_and_send_ui_pkt(struct llc_sap *sap, struct sk_buff *skb,
+			      unsigned char *dmac, unsigned char dsap);
 
-extern void llc_sap_handler(struct llc_sap *sap, struct sk_buff *skb);
-extern void llc_conn_handler(struct llc_sap *sap, struct sk_buff *skb);
+void llc_sap_handler(struct llc_sap *sap, struct sk_buff *skb);
+void llc_conn_handler(struct llc_sap *sap, struct sk_buff *skb);
 
-extern void llc_station_init(void);
-extern void llc_station_exit(void);
+void llc_station_init(void);
+void llc_station_exit(void);
 
 #ifdef CONFIG_PROC_FS
-extern int llc_proc_init(void);
-extern void llc_proc_exit(void);
+int llc_proc_init(void);
+void llc_proc_exit(void);
 #else
 #define llc_proc_init()	(0)
 #define llc_proc_exit()	do { } while(0)
 #endif /* CONFIG_PROC_FS */
 #ifdef CONFIG_SYSCTL
-extern int llc_sysctl_init(void);
-extern void llc_sysctl_exit(void);
+int llc_sysctl_init(void);
+void llc_sysctl_exit(void);
 
 extern int sysctl_llc2_ack_timeout;
 extern int sysctl_llc2_busy_timeout;
diff --git a/include/net/llc_c_ac.h b/include/net/llc_c_ac.h
index df83f69d2de4..f3be818e73c1 100644
--- a/include/net/llc_c_ac.h
+++ b/include/net/llc_c_ac.h
@@ -89,114 +89,92 @@
 
 typedef int (*llc_conn_action_t)(struct sock *sk, struct sk_buff *skb);
 
-extern int llc_conn_ac_clear_remote_busy(struct sock *sk, struct sk_buff *skb);
-extern int llc_conn_ac_conn_ind(struct sock *sk, struct sk_buff *skb);
-extern int llc_conn_ac_conn_confirm(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_data_ind(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_disc_ind(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_rst_ind(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_rst_confirm(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_clear_remote_busy_if_f_eq_1(struct sock* sk,
-						   struct sk_buff *skb);
-extern int llc_conn_ac_stop_rej_tmr_if_data_flag_eq_2(struct sock* sk,
-						      struct sk_buff *skb);
-extern int llc_conn_ac_send_disc_cmd_p_set_x(struct sock* sk,
-					     struct sk_buff *skb);
-extern int llc_conn_ac_send_dm_rsp_f_set_p(struct sock* sk,
-					   struct sk_buff *skb);
-extern int llc_conn_ac_send_dm_rsp_f_set_1(struct sock* sk,
-					   struct sk_buff *skb);
-extern int llc_conn_ac_send_frmr_rsp_f_set_x(struct sock* sk,
-					     struct sk_buff *skb);
-extern int llc_conn_ac_resend_frmr_rsp_f_set_0(struct sock* sk,
-					       struct sk_buff *skb);
-extern int llc_conn_ac_resend_frmr_rsp_f_set_p(struct sock* sk,
-					       struct sk_buff *skb);
-extern int llc_conn_ac_send_i_cmd_p_set_1(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_send_i_xxx_x_set_0(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_resend_i_xxx_x_set_0(struct sock* sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ac_resend_i_xxx_x_set_0_or_send_rr(struct sock* sk,
-						       struct sk_buff *skb);
-extern int llc_conn_ac_resend_i_rsp_f_set_1(struct sock* sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ac_send_rej_cmd_p_set_1(struct sock* sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ac_send_rej_rsp_f_set_1(struct sock* sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ac_send_rej_xxx_x_set_0(struct sock* sk,
+int llc_conn_ac_clear_remote_busy(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_conn_ind(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_conn_confirm(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_data_ind(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_disc_ind(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_rst_ind(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_rst_confirm(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_clear_remote_busy_if_f_eq_1(struct sock *sk,
 					    struct sk_buff *skb);
-extern int llc_conn_ac_send_rnr_cmd_p_set_1(struct sock* sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ac_send_rnr_rsp_f_set_1(struct sock* sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ac_send_rnr_xxx_x_set_0(struct sock* sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ac_set_remote_busy(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_opt_send_rnr_xxx_x_set_0(struct sock* sk,
+int llc_conn_ac_stop_rej_tmr_if_data_flag_eq_2(struct sock *sk,
+					       struct sk_buff *skb);
+int llc_conn_ac_send_disc_cmd_p_set_x(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_send_dm_rsp_f_set_p(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_send_dm_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_send_frmr_rsp_f_set_x(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_resend_frmr_rsp_f_set_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_resend_frmr_rsp_f_set_p(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_send_i_cmd_p_set_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_send_i_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_resend_i_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_resend_i_xxx_x_set_0_or_send_rr(struct sock *sk,
 						struct sk_buff *skb);
-extern int llc_conn_ac_send_rr_cmd_p_set_1(struct sock* sk,
-					   struct sk_buff *skb);
-extern int llc_conn_ac_send_rr_rsp_f_set_1(struct sock* sk,
-					   struct sk_buff *skb);
-extern int llc_conn_ac_send_ack_rsp_f_set_1(struct sock* sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ac_send_rr_xxx_x_set_0(struct sock* sk,
-					   struct sk_buff *skb);
-extern int llc_conn_ac_send_ack_xxx_x_set_0(struct sock* sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ac_send_sabme_cmd_p_set_x(struct sock* sk,
-					      struct sk_buff *skb);
-extern int llc_conn_ac_send_ua_rsp_f_set_p(struct sock* sk,
-					   struct sk_buff *skb);
-extern int llc_conn_ac_set_s_flag_0(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_set_s_flag_1(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_start_p_timer(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_start_ack_timer(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_start_rej_timer(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_start_ack_tmr_if_not_running(struct sock* sk,
-						    struct sk_buff *skb);
-extern int llc_conn_ac_stop_ack_timer(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_stop_p_timer(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_stop_rej_timer(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_stop_all_timers(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_stop_other_timers(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_upd_nr_received(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_inc_tx_win_size(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_dec_tx_win_size(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_upd_p_flag(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_set_data_flag_2(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_set_data_flag_0(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_set_data_flag_1(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_set_data_flag_1_if_data_flag_eq_0(struct sock* sk,
-							 struct sk_buff *skb);
-extern int llc_conn_ac_set_p_flag_0(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_set_remote_busy_0(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_set_retry_cnt_0(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_set_cause_flag_0(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_set_cause_flag_1(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_inc_retry_cnt_by_1(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_set_vr_0(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_inc_vr_by_1(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_set_vs_0(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_set_vs_nr(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_rst_vs(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_upd_vs(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_disc(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_reset(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_disc_confirm(struct sock* sk, struct sk_buff *skb);
-extern u8 llc_circular_between(u8 a, u8 b, u8 c);
-extern int llc_conn_ac_send_ack_if_needed(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_adjust_npta_by_rr(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_adjust_npta_by_rnr(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_rst_sendack_flag(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_send_i_rsp_as_ack(struct sock* sk, struct sk_buff *skb);
-extern int llc_conn_ac_send_i_as_ack(struct sock* sk, struct sk_buff *skb);
+int llc_conn_ac_resend_i_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_send_rej_cmd_p_set_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_send_rej_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_send_rej_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_send_rnr_cmd_p_set_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_send_rnr_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_send_rnr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_set_remote_busy(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_opt_send_rnr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_send_rr_cmd_p_set_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_send_rr_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_send_ack_rsp_f_set_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_send_rr_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_send_ack_xxx_x_set_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_send_sabme_cmd_p_set_x(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_send_ua_rsp_f_set_p(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_set_s_flag_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_set_s_flag_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_start_p_timer(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_start_ack_timer(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_start_rej_timer(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_start_ack_tmr_if_not_running(struct sock *sk,
+					     struct sk_buff *skb);
+int llc_conn_ac_stop_ack_timer(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_stop_p_timer(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_stop_rej_timer(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_stop_all_timers(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_stop_other_timers(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_upd_nr_received(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_inc_tx_win_size(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_dec_tx_win_size(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_upd_p_flag(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_set_data_flag_2(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_set_data_flag_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_set_data_flag_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_set_data_flag_1_if_data_flag_eq_0(struct sock *sk,
+						  struct sk_buff *skb);
+int llc_conn_ac_set_p_flag_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_set_remote_busy_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_set_retry_cnt_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_set_cause_flag_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_set_cause_flag_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_inc_retry_cnt_by_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_set_vr_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_inc_vr_by_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_set_vs_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_set_vs_nr(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_rst_vs(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_upd_vs(struct sock *sk, struct sk_buff *skb);
+int llc_conn_disc(struct sock *sk, struct sk_buff *skb);
+int llc_conn_reset(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_disc_confirm(struct sock *sk, struct sk_buff *skb);
+u8 llc_circular_between(u8 a, u8 b, u8 c);
+int llc_conn_ac_send_ack_if_needed(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_adjust_npta_by_rr(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_adjust_npta_by_rnr(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_rst_sendack_flag(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_send_i_rsp_as_ack(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ac_send_i_as_ack(struct sock *sk, struct sk_buff *skb);
 
-extern void llc_conn_busy_tmr_cb(unsigned long timeout_data);
-extern void llc_conn_pf_cycle_tmr_cb(unsigned long timeout_data);
-extern void llc_conn_ack_tmr_cb(unsigned long timeout_data);
-extern void llc_conn_rej_tmr_cb(unsigned long timeout_data);
+void llc_conn_busy_tmr_cb(unsigned long timeout_data);
+void llc_conn_pf_cycle_tmr_cb(unsigned long timeout_data);
+void llc_conn_ack_tmr_cb(unsigned long timeout_data);
+void llc_conn_rej_tmr_cb(unsigned long timeout_data);
 
-extern void llc_conn_set_p_flag(struct sock *sk, u8 value);
+void llc_conn_set_p_flag(struct sock *sk, u8 value);
 #endif /* LLC_C_AC_H */
diff --git a/include/net/llc_c_ev.h b/include/net/llc_c_ev.h
index 6ca3113df39e..3948cf111dd0 100644
--- a/include/net/llc_c_ev.h
+++ b/include/net/llc_c_ev.h
@@ -128,138 +128,93 @@ static __inline__ struct llc_conn_state_ev *llc_conn_ev(struct sk_buff *skb)
 typedef int (*llc_conn_ev_t)(struct sock *sk, struct sk_buff *skb);
 typedef int (*llc_conn_ev_qfyr_t)(struct sock *sk, struct sk_buff *skb);
 
-extern int llc_conn_ev_conn_req(struct sock *sk, struct sk_buff *skb);
-extern int llc_conn_ev_data_req(struct sock *sk, struct sk_buff *skb);
-extern int llc_conn_ev_disc_req(struct sock *sk, struct sk_buff *skb);
-extern int llc_conn_ev_rst_req(struct sock *sk, struct sk_buff *skb);
-extern int llc_conn_ev_local_busy_detected(struct sock *sk,
-					   struct sk_buff *skb);
-extern int llc_conn_ev_local_busy_cleared(struct sock *sk, struct sk_buff *skb);
-extern int llc_conn_ev_rx_bad_pdu(struct sock *sk, struct sk_buff *skb);
-extern int llc_conn_ev_rx_disc_cmd_pbit_set_x(struct sock *sk,
+int llc_conn_ev_conn_req(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_data_req(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_disc_req(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rst_req(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_local_busy_detected(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_local_busy_cleared(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_bad_pdu(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_disc_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_dm_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_frmr_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_i_cmd_pbit_set_x_inval_ns(struct sock *sk,
+					     struct sk_buff *skb);
+int llc_conn_ev_rx_i_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_i_rsp_fbit_set_x_unexpd_ns(struct sock *sk,
 					      struct sk_buff *skb);
-extern int llc_conn_ev_rx_dm_rsp_fbit_set_x(struct sock *sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ev_rx_frmr_rsp_fbit_set_x(struct sock *sk,
-					      struct sk_buff *skb);
-extern int llc_conn_ev_rx_i_cmd_pbit_set_x_inval_ns(struct sock *sk,
-						    struct sk_buff *skb);
-extern int llc_conn_ev_rx_i_rsp_fbit_set_x(struct sock *sk,
-					   struct sk_buff *skb);
-extern int llc_conn_ev_rx_i_rsp_fbit_set_x_unexpd_ns(struct sock *sk,
-						  struct sk_buff *skb);
-extern int llc_conn_ev_rx_i_rsp_fbit_set_x_inval_ns(struct sock *sk,
-						  struct sk_buff *skb);
-extern int llc_conn_ev_rx_rej_rsp_fbit_set_x(struct sock *sk,
-					     struct sk_buff *skb);
-extern int llc_conn_ev_rx_sabme_cmd_pbit_set_x(struct sock *sk,
+int llc_conn_ev_rx_i_rsp_fbit_set_x_inval_ns(struct sock *sk,
+					     struct sk_buff *skb);
+int llc_conn_ev_rx_rej_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_sabme_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_ua_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_xxx_cmd_pbit_set_x(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_xxx_rsp_fbit_set_x(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_zzz_cmd_pbit_set_x_inval_nr(struct sock *sk,
 					       struct sk_buff *skb);
-extern int llc_conn_ev_rx_ua_rsp_fbit_set_x(struct sock *sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ev_rx_xxx_cmd_pbit_set_x(struct sock *sk,
-					     struct sk_buff *skb);
-extern int llc_conn_ev_rx_xxx_rsp_fbit_set_x(struct sock *sk,
-					     struct sk_buff *skb);
-extern int llc_conn_ev_rx_zzz_cmd_pbit_set_x_inval_nr(struct sock *sk,
-						      struct sk_buff *skb);
-extern int llc_conn_ev_rx_zzz_rsp_fbit_set_x_inval_nr(struct sock *sk,
-						      struct sk_buff *skb);
-extern int llc_conn_ev_p_tmr_exp(struct sock *sk, struct sk_buff *skb);
-extern int llc_conn_ev_ack_tmr_exp(struct sock *sk, struct sk_buff *skb);
-extern int llc_conn_ev_rej_tmr_exp(struct sock *sk, struct sk_buff *skb);
-extern int llc_conn_ev_busy_tmr_exp(struct sock *sk, struct sk_buff *skb);
-extern int llc_conn_ev_sendack_tmr_exp(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_zzz_rsp_fbit_set_x_inval_nr(struct sock *sk,
+					       struct sk_buff *skb);
+int llc_conn_ev_p_tmr_exp(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_ack_tmr_exp(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rej_tmr_exp(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_busy_tmr_exp(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_sendack_tmr_exp(struct sock *sk, struct sk_buff *skb);
 /* NOT_USED functions and their variations */
-extern int llc_conn_ev_rx_xxx_cmd_pbit_set_1(struct sock *sk,
-					     struct sk_buff *skb);
-extern int llc_conn_ev_rx_xxx_rsp_fbit_set_1(struct sock *sk,
-					     struct sk_buff *skb);
-extern int llc_conn_ev_rx_i_cmd_pbit_set_0_unexpd_ns(struct sock *sk,
-						  struct sk_buff *skb);
-extern int llc_conn_ev_rx_i_cmd_pbit_set_1_unexpd_ns(struct sock *sk,
-						  struct sk_buff *skb);
-extern int llc_conn_ev_rx_i_cmd_pbit_set_0(struct sock *sk,
-					   struct sk_buff *skb);
-extern int llc_conn_ev_rx_i_cmd_pbit_set_1(struct sock *sk,
-					   struct sk_buff *skb);
-extern int llc_conn_ev_rx_i_rsp_fbit_set_0_unexpd_ns(struct sock *sk,
-						  struct sk_buff *skb);
-extern int llc_conn_ev_rx_i_rsp_fbit_set_1_unexpd_ns(struct sock *sk,
-						  struct sk_buff *skb);
-extern int llc_conn_ev_rx_i_rsp_fbit_set_0(struct sock *sk,
-					   struct sk_buff *skb);
-extern int llc_conn_ev_rx_i_rsp_fbit_set_1(struct sock *sk,
-					   struct sk_buff *skb);
-extern int llc_conn_ev_rx_rr_cmd_pbit_set_0(struct sock *sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ev_rx_rr_cmd_pbit_set_1(struct sock *sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ev_rx_rr_rsp_fbit_set_0(struct sock *sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ev_rx_rr_rsp_fbit_set_1(struct sock *sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ev_rx_rnr_cmd_pbit_set_0(struct sock *sk,
-					     struct sk_buff *skb);
-extern int llc_conn_ev_rx_rnr_cmd_pbit_set_1(struct sock *sk,
-					     struct sk_buff *skb);
-extern int llc_conn_ev_rx_rnr_rsp_fbit_set_0(struct sock *sk,
-					     struct sk_buff *skb);
-extern int llc_conn_ev_rx_rnr_rsp_fbit_set_1(struct sock *sk,
-					     struct sk_buff *skb);
-extern int llc_conn_ev_rx_rej_cmd_pbit_set_0(struct sock *sk,
-					     struct sk_buff *skb);
-extern int llc_conn_ev_rx_rej_cmd_pbit_set_1(struct sock *sk,
-					     struct sk_buff *skb);
-extern int llc_conn_ev_rx_rej_rsp_fbit_set_0(struct sock *sk,
-					     struct sk_buff *skb);
-extern int llc_conn_ev_rx_rej_rsp_fbit_set_1(struct sock *sk,
-					     struct sk_buff *skb);
-extern int llc_conn_ev_rx_any_frame(struct sock *sk, struct sk_buff *skb);
-extern int llc_conn_ev_tx_buffer_full(struct sock *sk, struct sk_buff *skb);
-extern int llc_conn_ev_init_p_f_cycle(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_xxx_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_xxx_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_i_cmd_pbit_set_0_unexpd_ns(struct sock *sk,
+					      struct sk_buff *skb);
+int llc_conn_ev_rx_i_cmd_pbit_set_1_unexpd_ns(struct sock *sk,
+					      struct sk_buff *skb);
+int llc_conn_ev_rx_i_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_i_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_i_rsp_fbit_set_0_unexpd_ns(struct sock *sk,
+					      struct sk_buff *skb);
+int llc_conn_ev_rx_i_rsp_fbit_set_1_unexpd_ns(struct sock *sk,
+					      struct sk_buff *skb);
+int llc_conn_ev_rx_i_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_i_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_rr_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_rr_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_rr_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_rr_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_rnr_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_rnr_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_rnr_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_rnr_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_rej_cmd_pbit_set_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_rej_cmd_pbit_set_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_rej_rsp_fbit_set_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_rej_rsp_fbit_set_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_rx_any_frame(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_tx_buffer_full(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_init_p_f_cycle(struct sock *sk, struct sk_buff *skb);
 
 /* Available connection action qualifiers */
-extern int llc_conn_ev_qlfy_data_flag_eq_1(struct sock *sk,
-					   struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_data_flag_eq_0(struct sock *sk,
-					   struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_data_flag_eq_2(struct sock *sk,
-					   struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_p_flag_eq_1(struct sock *sk, struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_last_frame_eq_1(struct sock *sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_last_frame_eq_0(struct sock *sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_p_flag_eq_0(struct sock *sk, struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_p_flag_eq_f(struct sock *sk, struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_remote_busy_eq_0(struct sock *sk,
-					     struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_remote_busy_eq_1(struct sock *sk,
-					     struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_retry_cnt_lt_n2(struct sock *sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_retry_cnt_gte_n2(struct sock *sk,
-					     struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_s_flag_eq_1(struct sock *sk, struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_s_flag_eq_0(struct sock *sk, struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_cause_flag_eq_1(struct sock *sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_cause_flag_eq_0(struct sock *sk,
+int llc_conn_ev_qlfy_data_flag_eq_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_data_flag_eq_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_data_flag_eq_2(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_p_flag_eq_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_last_frame_eq_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_last_frame_eq_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_p_flag_eq_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_p_flag_eq_f(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_remote_busy_eq_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_remote_busy_eq_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_retry_cnt_lt_n2(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_retry_cnt_gte_n2(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_s_flag_eq_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_s_flag_eq_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_cause_flag_eq_1(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_cause_flag_eq_0(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_set_status_conn(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_set_status_disc(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_set_status_failed(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_set_status_remote_busy(struct sock *sk,
 					    struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_set_status_conn(struct sock *sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_set_status_disc(struct sock *sk,
-					    struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_set_status_failed(struct sock *sk,
-					      struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_set_status_remote_busy(struct sock *sk,
-						  struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_set_status_refuse(struct sock *sk,
-					      struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_set_status_conflict(struct sock *sk,
-						struct sk_buff *skb);
-extern int llc_conn_ev_qlfy_set_status_rst_done(struct sock *sk,
-						struct sk_buff *skb);
+int llc_conn_ev_qlfy_set_status_refuse(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_set_status_conflict(struct sock *sk, struct sk_buff *skb);
+int llc_conn_ev_qlfy_set_status_rst_done(struct sock *sk, struct sk_buff *skb);
 
 static __inline__ int llc_conn_space(struct sock *sk, struct sk_buff *skb)
 {
diff --git a/include/net/llc_conn.h b/include/net/llc_conn.h
index 2f97d8ddce92..0134681acc4c 100644
--- a/include/net/llc_conn.h
+++ b/include/net/llc_conn.h
@@ -95,28 +95,24 @@ static __inline__ char llc_backlog_type(struct sk_buff *skb)
 	return skb->cb[sizeof(skb->cb) - 1];
 }
 
-extern struct sock *llc_sk_alloc(struct net *net, int family, gfp_t priority,
-				 struct proto *prot);
-extern void llc_sk_free(struct sock *sk);
+struct sock *llc_sk_alloc(struct net *net, int family, gfp_t priority,
+			  struct proto *prot);
+void llc_sk_free(struct sock *sk);
 
-extern void llc_sk_reset(struct sock *sk);
+void llc_sk_reset(struct sock *sk);
 
 /* Access to a connection */
-extern int llc_conn_state_process(struct sock *sk, struct sk_buff *skb);
-extern void llc_conn_send_pdu(struct sock *sk, struct sk_buff *skb);
-extern void llc_conn_rtn_pdu(struct sock *sk, struct sk_buff *skb);
-extern void llc_conn_resend_i_pdu_as_cmd(struct sock *sk, u8 nr,
-					 u8 first_p_bit);
-extern void llc_conn_resend_i_pdu_as_rsp(struct sock *sk, u8 nr,
-					 u8 first_f_bit);
-extern int llc_conn_remove_acked_pdus(struct sock *conn, u8 nr,
-				      u16 *how_many_unacked);
-extern struct sock *llc_lookup_established(struct llc_sap *sap,
-					   struct llc_addr *daddr,
-					   struct llc_addr *laddr);
-extern void llc_sap_add_socket(struct llc_sap *sap, struct sock *sk);
-extern void llc_sap_remove_socket(struct llc_sap *sap, struct sock *sk);
+int llc_conn_state_process(struct sock *sk, struct sk_buff *skb);
+void llc_conn_send_pdu(struct sock *sk, struct sk_buff *skb);
+void llc_conn_rtn_pdu(struct sock *sk, struct sk_buff *skb);
+void llc_conn_resend_i_pdu_as_cmd(struct sock *sk, u8 nr, u8 first_p_bit);
+void llc_conn_resend_i_pdu_as_rsp(struct sock *sk, u8 nr, u8 first_f_bit);
+int llc_conn_remove_acked_pdus(struct sock *conn, u8 nr, u16 *how_many_unacked);
+struct sock *llc_lookup_established(struct llc_sap *sap, struct llc_addr *daddr,
+				    struct llc_addr *laddr);
+void llc_sap_add_socket(struct llc_sap *sap, struct sock *sk);
+void llc_sap_remove_socket(struct llc_sap *sap, struct sock *sk);
 
-extern u8 llc_data_accept_state(u8 state);
-extern void llc_build_offset_table(void);
+u8 llc_data_accept_state(u8 state);
+void llc_build_offset_table(void);
 #endif /* LLC_CONN_H */
diff --git a/include/net/llc_if.h b/include/net/llc_if.h
index f0cb909b60eb..8d5c543cd620 100644
--- a/include/net/llc_if.h
+++ b/include/net/llc_if.h
@@ -62,8 +62,7 @@
 #define LLC_STATUS_CONFLICT	7 /* disconnect conn */
 #define LLC_STATUS_RESET_DONE	8 /*  */
 
-extern int llc_establish_connection(struct sock *sk, u8 *lmac,
-				    u8 *dmac, u8 dsap);
-extern int llc_build_and_send_pkt(struct sock *sk, struct sk_buff *skb);
-extern int llc_send_disc(struct sock *sk);
+int llc_establish_connection(struct sock *sk, u8 *lmac, u8 *dmac, u8 dsap);
+int llc_build_and_send_pkt(struct sock *sk, struct sk_buff *skb);
+int llc_send_disc(struct sock *sk);
 #endif /* LLC_IF_H */
diff --git a/include/net/llc_pdu.h b/include/net/llc_pdu.h
index 5a93d13ac95c..31e2de7d57c5 100644
--- a/include/net/llc_pdu.h
+++ b/include/net/llc_pdu.h
@@ -410,21 +410,20 @@ struct llc_frmr_info {
 	u8  ind_bits;		/* indicator bits set with macro */
 } __packed;
 
-extern void llc_pdu_set_cmd_rsp(struct sk_buff *skb, u8 type);
-extern void llc_pdu_set_pf_bit(struct sk_buff *skb, u8 bit_value);
-extern void llc_pdu_decode_pf_bit(struct sk_buff *skb, u8 *pf_bit);
-extern void llc_pdu_init_as_disc_cmd(struct sk_buff *skb, u8 p_bit);
-extern void llc_pdu_init_as_i_cmd(struct sk_buff *skb, u8 p_bit, u8 ns, u8 nr);
-extern void llc_pdu_init_as_rej_cmd(struct sk_buff *skb, u8 p_bit, u8 nr);
-extern void llc_pdu_init_as_rnr_cmd(struct sk_buff *skb, u8 p_bit, u8 nr);
-extern void llc_pdu_init_as_rr_cmd(struct sk_buff *skb, u8 p_bit, u8 nr);
-extern void llc_pdu_init_as_sabme_cmd(struct sk_buff *skb, u8 p_bit);
-extern void llc_pdu_init_as_dm_rsp(struct sk_buff *skb, u8 f_bit);
-extern void llc_pdu_init_as_frmr_rsp(struct sk_buff *skb,
-				     struct llc_pdu_sn *prev_pdu,
-				     u8 f_bit, u8 vs, u8 vr, u8 vzyxw);
-extern void llc_pdu_init_as_rr_rsp(struct sk_buff *skb, u8 f_bit, u8 nr);
-extern void llc_pdu_init_as_rej_rsp(struct sk_buff *skb, u8 f_bit, u8 nr);
-extern void llc_pdu_init_as_rnr_rsp(struct sk_buff *skb, u8 f_bit, u8 nr);
-extern void llc_pdu_init_as_ua_rsp(struct sk_buff *skb, u8 f_bit);
+void llc_pdu_set_cmd_rsp(struct sk_buff *skb, u8 type);
+void llc_pdu_set_pf_bit(struct sk_buff *skb, u8 bit_value);
+void llc_pdu_decode_pf_bit(struct sk_buff *skb, u8 *pf_bit);
+void llc_pdu_init_as_disc_cmd(struct sk_buff *skb, u8 p_bit);
+void llc_pdu_init_as_i_cmd(struct sk_buff *skb, u8 p_bit, u8 ns, u8 nr);
+void llc_pdu_init_as_rej_cmd(struct sk_buff *skb, u8 p_bit, u8 nr);
+void llc_pdu_init_as_rnr_cmd(struct sk_buff *skb, u8 p_bit, u8 nr);
+void llc_pdu_init_as_rr_cmd(struct sk_buff *skb, u8 p_bit, u8 nr);
+void llc_pdu_init_as_sabme_cmd(struct sk_buff *skb, u8 p_bit);
+void llc_pdu_init_as_dm_rsp(struct sk_buff *skb, u8 f_bit);
+void llc_pdu_init_as_frmr_rsp(struct sk_buff *skb, struct llc_pdu_sn *prev_pdu,
+			      u8 f_bit, u8 vs, u8 vr, u8 vzyxw);
+void llc_pdu_init_as_rr_rsp(struct sk_buff *skb, u8 f_bit, u8 nr);
+void llc_pdu_init_as_rej_rsp(struct sk_buff *skb, u8 f_bit, u8 nr);
+void llc_pdu_init_as_rnr_rsp(struct sk_buff *skb, u8 f_bit, u8 nr);
+void llc_pdu_init_as_ua_rsp(struct sk_buff *skb, u8 f_bit);
 #endif /* LLC_PDU_H */
diff --git a/include/net/llc_s_ac.h b/include/net/llc_s_ac.h
index 37a3bbd02394..a61b98c108ee 100644
--- a/include/net/llc_s_ac.h
+++ b/include/net/llc_s_ac.h
@@ -25,15 +25,13 @@
 /* All action functions must look like this */
 typedef int (*llc_sap_action_t)(struct llc_sap *sap, struct sk_buff *skb);
 
-extern int llc_sap_action_unitdata_ind(struct llc_sap *sap,
-				       struct sk_buff *skb);
-extern int llc_sap_action_send_ui(struct llc_sap *sap, struct sk_buff *skb);
-extern int llc_sap_action_send_xid_c(struct llc_sap *sap, struct sk_buff *skb);
-extern int llc_sap_action_send_xid_r(struct llc_sap *sap, struct sk_buff *skb);
-extern int llc_sap_action_send_test_c(struct llc_sap *sap, struct sk_buff *skb);
-extern int llc_sap_action_send_test_r(struct llc_sap *sap, struct sk_buff *skb);
-extern int llc_sap_action_report_status(struct llc_sap *sap,
-					struct sk_buff *skb);
-extern int llc_sap_action_xid_ind(struct llc_sap *sap, struct sk_buff *skb);
-extern int llc_sap_action_test_ind(struct llc_sap *sap, struct sk_buff *skb);
+int llc_sap_action_unitdata_ind(struct llc_sap *sap, struct sk_buff *skb);
+int llc_sap_action_send_ui(struct llc_sap *sap, struct sk_buff *skb);
+int llc_sap_action_send_xid_c(struct llc_sap *sap, struct sk_buff *skb);
+int llc_sap_action_send_xid_r(struct llc_sap *sap, struct sk_buff *skb);
+int llc_sap_action_send_test_c(struct llc_sap *sap, struct sk_buff *skb);
+int llc_sap_action_send_test_r(struct llc_sap *sap, struct sk_buff *skb);
+int llc_sap_action_report_status(struct llc_sap *sap, struct sk_buff *skb);
+int llc_sap_action_xid_ind(struct llc_sap *sap, struct sk_buff *skb);
+int llc_sap_action_test_ind(struct llc_sap *sap, struct sk_buff *skb);
 #endif /* LLC_S_AC_H */
diff --git a/include/net/llc_s_ev.h b/include/net/llc_s_ev.h
index e3acb9329e4a..84db3a59ed28 100644
--- a/include/net/llc_s_ev.h
+++ b/include/net/llc_s_ev.h
@@ -53,15 +53,14 @@ struct llc_sap;
 
 typedef int (*llc_sap_ev_t)(struct llc_sap *sap, struct sk_buff *skb);
 
-extern int llc_sap_ev_activation_req(struct llc_sap *sap, struct sk_buff *skb);
-extern int llc_sap_ev_rx_ui(struct llc_sap *sap, struct sk_buff *skb);
-extern int llc_sap_ev_unitdata_req(struct llc_sap *sap, struct sk_buff *skb);
-extern int llc_sap_ev_xid_req(struct llc_sap *sap, struct sk_buff *skb);
-extern int llc_sap_ev_rx_xid_c(struct llc_sap *sap, struct sk_buff *skb);
-extern int llc_sap_ev_rx_xid_r(struct llc_sap *sap, struct sk_buff *skb);
-extern int llc_sap_ev_test_req(struct llc_sap *sap, struct sk_buff *skb);
-extern int llc_sap_ev_rx_test_c(struct llc_sap *sap, struct sk_buff *skb);
-extern int llc_sap_ev_rx_test_r(struct llc_sap *sap, struct sk_buff *skb);
-extern int llc_sap_ev_deactivation_req(struct llc_sap *sap,
-				       struct sk_buff *skb);
+int llc_sap_ev_activation_req(struct llc_sap *sap, struct sk_buff *skb);
+int llc_sap_ev_rx_ui(struct llc_sap *sap, struct sk_buff *skb);
+int llc_sap_ev_unitdata_req(struct llc_sap *sap, struct sk_buff *skb);
+int llc_sap_ev_xid_req(struct llc_sap *sap, struct sk_buff *skb);
+int llc_sap_ev_rx_xid_c(struct llc_sap *sap, struct sk_buff *skb);
+int llc_sap_ev_rx_xid_r(struct llc_sap *sap, struct sk_buff *skb);
+int llc_sap_ev_test_req(struct llc_sap *sap, struct sk_buff *skb);
+int llc_sap_ev_rx_test_c(struct llc_sap *sap, struct sk_buff *skb);
+int llc_sap_ev_rx_test_r(struct llc_sap *sap, struct sk_buff *skb);
+int llc_sap_ev_deactivation_req(struct llc_sap *sap, struct sk_buff *skb);
 #endif /* LLC_S_EV_H */
diff --git a/include/net/llc_sap.h b/include/net/llc_sap.h
index ed25bec2f648..1e4df9fd9fb2 100644
--- a/include/net/llc_sap.h
+++ b/include/net/llc_sap.h
@@ -19,18 +19,14 @@ struct net_device;
 struct sk_buff;
 struct sock;
 
-extern void llc_sap_rtn_pdu(struct llc_sap *sap, struct sk_buff *skb);
-extern void llc_save_primitive(struct sock *sk, struct sk_buff* skb,
-			       unsigned char prim);
-extern struct sk_buff *llc_alloc_frame(struct sock *sk, struct net_device *dev,
-				       u8 type, u32 data_size);
+void llc_sap_rtn_pdu(struct llc_sap *sap, struct sk_buff *skb);
+void llc_save_primitive(struct sock *sk, struct sk_buff *skb,
+			unsigned char prim);
+struct sk_buff *llc_alloc_frame(struct sock *sk, struct net_device *dev,
+				u8 type, u32 data_size);
 
-extern void llc_build_and_send_test_pkt(struct llc_sap *sap,
-				        struct sk_buff *skb,
-					unsigned char *dmac,
-					unsigned char dsap);
-extern void llc_build_and_send_xid_pkt(struct llc_sap *sap,
-				       struct sk_buff *skb,
-				       unsigned char *dmac,
-				       unsigned char dsap);
+void llc_build_and_send_test_pkt(struct llc_sap *sap, struct sk_buff *skb,
+				 unsigned char *dmac, unsigned char dsap);
+void llc_build_and_send_xid_pkt(struct llc_sap *sap, struct sk_buff *skb,
+				unsigned char *dmac, unsigned char dsap);
 #endif /* LLC_SAP_H */
-- 
cgit 


From a5be1eb6488f4755a8dc237d5ba689667ddeeab5 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sat, 21 Sep 2013 10:22:46 -0700
Subject: mrp.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/mrp.h | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/include/net/mrp.h b/include/net/mrp.h
index 4fbf02aa2ec1..687c8feecd09 100644
--- a/include/net/mrp.h
+++ b/include/net/mrp.h
@@ -125,19 +125,17 @@ struct mrp_port {
 	struct rcu_head			rcu;
 };
 
-extern int	mrp_register_application(struct mrp_application *app);
-extern void	mrp_unregister_application(struct mrp_application *app);
-
-extern int	mrp_init_applicant(struct net_device *dev,
-				    struct mrp_application *app);
-extern void	mrp_uninit_applicant(struct net_device *dev,
-				      struct mrp_application *app);
-
-extern int	mrp_request_join(const struct net_device *dev,
-				  const struct mrp_application *app,
-				  const void *value, u8 len, u8 type);
-extern void	mrp_request_leave(const struct net_device *dev,
-				   const struct mrp_application *app,
-				   const void *value, u8 len, u8 type);
+int mrp_register_application(struct mrp_application *app);
+void mrp_unregister_application(struct mrp_application *app);
+
+int mrp_init_applicant(struct net_device *dev, struct mrp_application *app);
+void mrp_uninit_applicant(struct net_device *dev, struct mrp_application *app);
+
+int mrp_request_join(const struct net_device *dev,
+		     const struct mrp_application *app,
+		     const void *value, u8 len, u8 type);
+void mrp_request_leave(const struct net_device *dev,
+		       const struct mrp_application *app,
+		       const void *value, u8 len, u8 type);
 
 #endif /* _NET_MRP_H */
-- 
cgit 


From 3cc818a27d17fc57aa37ee89d09feb2bc2dd789f Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sat, 21 Sep 2013 10:22:47 -0700
Subject: ndisc.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/ndisc.h | 61 +++++++++++++++++++++++------------------------------
 1 file changed, 26 insertions(+), 35 deletions(-)

diff --git a/include/net/ndisc.h b/include/net/ndisc.h
index ea0cc26ab70e..6bbda34d5e59 100644
--- a/include/net/ndisc.h
+++ b/include/net/ndisc.h
@@ -110,8 +110,8 @@ struct ndisc_options {
 
 #define NDISC_OPT_SPACE(len) (((len)+2+7)&~7)
 
-extern struct ndisc_options *ndisc_parse_options(u8 *opt, int opt_len,
-						 struct ndisc_options *ndopts);
+struct ndisc_options *ndisc_parse_options(u8 *opt, int opt_len,
+					  struct ndisc_options *ndopts);
 
 /*
  * Return the padding between the option length and the start of the
@@ -189,60 +189,51 @@ static inline struct neighbour *__ipv6_neigh_lookup(struct net_device *dev, cons
 	return n;
 }
 
-extern int			ndisc_init(void);
-extern int			ndisc_late_init(void);
+int ndisc_init(void);
+int ndisc_late_init(void);
 
-extern void			ndisc_late_cleanup(void);
-extern void			ndisc_cleanup(void);
+void ndisc_late_cleanup(void);
+void ndisc_cleanup(void);
 
-extern int			ndisc_rcv(struct sk_buff *skb);
+int ndisc_rcv(struct sk_buff *skb);
 
-extern void			ndisc_send_ns(struct net_device *dev,
-					      struct neighbour *neigh,
-					      const struct in6_addr *solicit,
-					      const struct in6_addr *daddr,
-					      const struct in6_addr *saddr);
+void ndisc_send_ns(struct net_device *dev, struct neighbour *neigh,
+		   const struct in6_addr *solicit,
+		   const struct in6_addr *daddr, const struct in6_addr *saddr);
 
-extern void			ndisc_send_rs(struct net_device *dev,
-					      const struct in6_addr *saddr,
-					      const struct in6_addr *daddr);
-extern void			ndisc_send_na(struct net_device *dev, struct neighbour *neigh,
-					      const struct in6_addr *daddr,
-					      const struct in6_addr *solicited_addr,
-					      bool router, bool solicited, bool override,
-					      bool inc_opt);
+void ndisc_send_rs(struct net_device *dev,
+		   const struct in6_addr *saddr, const struct in6_addr *daddr);
+void ndisc_send_na(struct net_device *dev, struct neighbour *neigh,
+		   const struct in6_addr *daddr,
+		   const struct in6_addr *solicited_addr,
+		   bool router, bool solicited, bool override, bool inc_opt);
 
-extern void			ndisc_send_redirect(struct sk_buff *skb,
-						    const struct in6_addr *target);
+void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target);
 
-extern int			ndisc_mc_map(const struct in6_addr *addr, char *buf,
-					     struct net_device *dev, int dir);
+int ndisc_mc_map(const struct in6_addr *addr, char *buf, struct net_device *dev,
+		 int dir);
 
 
 /*
  *	IGMP
  */
-extern int			igmp6_init(void);
+int igmp6_init(void);
 
-extern void			igmp6_cleanup(void);
+void igmp6_cleanup(void);
 
-extern int			igmp6_event_query(struct sk_buff *skb);
+int igmp6_event_query(struct sk_buff *skb);
 
-extern int			igmp6_event_report(struct sk_buff *skb);
+int igmp6_event_report(struct sk_buff *skb);
 
 
 #ifdef CONFIG_SYSCTL
-extern int 			ndisc_ifinfo_sysctl_change(struct ctl_table *ctl,
-							   int write,
-							   void __user *buffer,
-							   size_t *lenp,
-							   loff_t *ppos);
+int ndisc_ifinfo_sysctl_change(struct ctl_table *ctl, int write,
+			       void __user *buffer, size_t *lenp, loff_t *ppos);
 int ndisc_ifinfo_sysctl_strategy(struct ctl_table *ctl,
 				 void __user *oldval, size_t __user *oldlenp,
 				 void __user *newval, size_t newlen);
 #endif
 
-extern void 			inet6_ifinfo_notify(int event,
-						    struct inet6_dev *idev);
+void inet6_ifinfo_notify(int event, struct inet6_dev *idev);
 
 #endif
-- 
cgit 


From e67e16ea9b5ad1dd76adf32233aed75c1f619433 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sat, 21 Sep 2013 10:22:48 -0700
Subject: net_namespace.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/net_namespace.h | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index 1313456a0994..38c2afb585de 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -136,8 +136,8 @@ struct net {
 extern struct net init_net;
 
 #ifdef CONFIG_NET_NS
-extern struct net *copy_net_ns(unsigned long flags,
-	struct user_namespace *user_ns, struct net *old_net);
+struct net *copy_net_ns(unsigned long flags, struct user_namespace *user_ns,
+			struct net *old_net);
 
 #else /* CONFIG_NET_NS */
 #include <linux/sched.h>
@@ -154,11 +154,11 @@ static inline struct net *copy_net_ns(unsigned long flags,
 
 extern struct list_head net_namespace_list;
 
-extern struct net *get_net_ns_by_pid(pid_t pid);
-extern struct net *get_net_ns_by_fd(int pid);
+struct net *get_net_ns_by_pid(pid_t pid);
+struct net *get_net_ns_by_fd(int pid);
 
 #ifdef CONFIG_NET_NS
-extern void __put_net(struct net *net);
+void __put_net(struct net *net);
 
 static inline struct net *get_net(struct net *net)
 {
@@ -190,7 +190,7 @@ int net_eq(const struct net *net1, const struct net *net2)
 	return net1 == net2;
 }
 
-extern void net_drop_ns(void *);
+void net_drop_ns(void *);
 
 #else
 
@@ -307,19 +307,19 @@ struct pernet_operations {
  * device which caused kernel oops, and panics during network
  * namespace cleanup.   So please don't get this wrong.
  */
-extern int register_pernet_subsys(struct pernet_operations *);
-extern void unregister_pernet_subsys(struct pernet_operations *);
-extern int register_pernet_device(struct pernet_operations *);
-extern void unregister_pernet_device(struct pernet_operations *);
+int register_pernet_subsys(struct pernet_operations *);
+void unregister_pernet_subsys(struct pernet_operations *);
+int register_pernet_device(struct pernet_operations *);
+void unregister_pernet_device(struct pernet_operations *);
 
 struct ctl_table;
 struct ctl_table_header;
 
 #ifdef CONFIG_SYSCTL
-extern int net_sysctl_init(void);
-extern struct ctl_table_header *register_net_sysctl(struct net *net,
-	const char *path, struct ctl_table *table);
-extern void unregister_net_sysctl_table(struct ctl_table_header *header);
+int net_sysctl_init(void);
+struct ctl_table_header *register_net_sysctl(struct net *net, const char *path,
+					     struct ctl_table *table);
+void unregister_net_sysctl_table(struct ctl_table_header *header);
 #else
 static inline int net_sysctl_init(void) { return 0; }
 static inline struct ctl_table_header *register_net_sysctl(struct net *net,
-- 
cgit 


From 70a3926f49896be866e5f2bd9c47cf4b33e3f2e3 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sat, 21 Sep 2013 10:22:49 -0700
Subject: iw_handler.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/iw_handler.h | 38 +++++++++++++-------------------------
 1 file changed, 13 insertions(+), 25 deletions(-)

diff --git a/include/net/iw_handler.h b/include/net/iw_handler.h
index 5d5a6a4732ef..a830b01baba4 100644
--- a/include/net/iw_handler.h
+++ b/include/net/iw_handler.h
@@ -432,44 +432,32 @@ struct iw_public_data {
 /* First : function strictly used inside the kernel */
 
 /* Handle /proc/net/wireless, called in net/code/dev.c */
-extern int dev_get_wireless_info(char * buffer, char **start, off_t offset,
-				 int length);
+int dev_get_wireless_info(char *buffer, char **start, off_t offset, int length);
 
 /* Second : functions that may be called by driver modules */
 
 /* Send a single event to user space */
-extern void wireless_send_event(struct net_device *	dev,
-				unsigned int		cmd,
-				union iwreq_data *	wrqu,
-				const char *		extra);
+void wireless_send_event(struct net_device *dev, unsigned int cmd,
+			 union iwreq_data *wrqu, const char *extra);
 
 /* We may need a function to send a stream of events to user space.
  * More on that later... */
 
 /* Standard handler for SIOCSIWSPY */
-extern int iw_handler_set_spy(struct net_device *	dev,
-			      struct iw_request_info *	info,
-			      union iwreq_data *	wrqu,
-			      char *			extra);
+int iw_handler_set_spy(struct net_device *dev, struct iw_request_info *info,
+		       union iwreq_data *wrqu, char *extra);
 /* Standard handler for SIOCGIWSPY */
-extern int iw_handler_get_spy(struct net_device *	dev,
-			      struct iw_request_info *	info,
-			      union iwreq_data *	wrqu,
-			      char *			extra);
+int iw_handler_get_spy(struct net_device *dev, struct iw_request_info *info,
+		       union iwreq_data *wrqu, char *extra);
 /* Standard handler for SIOCSIWTHRSPY */
-extern int iw_handler_set_thrspy(struct net_device *	dev,
-				 struct iw_request_info *info,
-				 union iwreq_data *	wrqu,
-				 char *			extra);
+int iw_handler_set_thrspy(struct net_device *dev, struct iw_request_info *info,
+			  union iwreq_data *wrqu, char *extra);
 /* Standard handler for SIOCGIWTHRSPY */
-extern int iw_handler_get_thrspy(struct net_device *	dev,
-				 struct iw_request_info *info,
-				 union iwreq_data *	wrqu,
-				 char *			extra);
+int iw_handler_get_thrspy(struct net_device *dev, struct iw_request_info *info,
+			  union iwreq_data *wrqu, char *extra);
 /* Driver call to update spy records */
-extern void wireless_spy_update(struct net_device *	dev,
-				unsigned char *		address,
-				struct iw_quality *	wstats);
+void wireless_spy_update(struct net_device *dev, unsigned char *address,
+			 struct iw_quality *wstats);
 
 /************************* INLINE FUNTIONS *************************/
 /*
-- 
cgit 


From 4f69053b72c542faec2096ab454bba729a423efe Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sat, 21 Sep 2013 10:22:50 -0700
Subject: netevent/netlink.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/netevent.h |  6 ++---
 include/net/netlink.h  | 63 ++++++++++++++++++++------------------------------
 2 files changed, 28 insertions(+), 41 deletions(-)

diff --git a/include/net/netevent.h b/include/net/netevent.h
index fe630dde35c3..d8bbb38584b6 100644
--- a/include/net/netevent.h
+++ b/include/net/netevent.h
@@ -26,8 +26,8 @@ enum netevent_notif_type {
 	NETEVENT_REDIRECT,	   /* arg is struct netevent_redirect ptr */
 };
 
-extern int register_netevent_notifier(struct notifier_block *nb);
-extern int unregister_netevent_notifier(struct notifier_block *nb);
-extern int call_netevent_notifiers(unsigned long val, void *v);
+int register_netevent_notifier(struct notifier_block *nb);
+int unregister_netevent_notifier(struct notifier_block *nb);
+int call_netevent_notifiers(unsigned long val, void *v);
 
 #endif
diff --git a/include/net/netlink.h b/include/net/netlink.h
index 9690b0f6698a..2b47eaadba8f 100644
--- a/include/net/netlink.h
+++ b/include/net/netlink.h
@@ -225,44 +225,31 @@ struct nl_info {
 	u32			portid;
 };
 
-extern int		netlink_rcv_skb(struct sk_buff *skb,
-					int (*cb)(struct sk_buff *,
-						  struct nlmsghdr *));
-extern int		nlmsg_notify(struct sock *sk, struct sk_buff *skb,
-				     u32 portid, unsigned int group, int report,
-				     gfp_t flags);
-
-extern int		nla_validate(const struct nlattr *head,
-				     int len, int maxtype,
-				     const struct nla_policy *policy);
-extern int		nla_parse(struct nlattr **tb, int maxtype,
-				  const struct nlattr *head, int len,
-				  const struct nla_policy *policy);
-extern int		nla_policy_len(const struct nla_policy *, int);
-extern struct nlattr *	nla_find(const struct nlattr *head,
-				 int len, int attrtype);
-extern size_t		nla_strlcpy(char *dst, const struct nlattr *nla,
-				    size_t dstsize);
-extern int		nla_memcpy(void *dest, const struct nlattr *src, int count);
-extern int		nla_memcmp(const struct nlattr *nla, const void *data,
-				   size_t size);
-extern int		nla_strcmp(const struct nlattr *nla, const char *str);
-extern struct nlattr *	__nla_reserve(struct sk_buff *skb, int attrtype,
-				      int attrlen);
-extern void *		__nla_reserve_nohdr(struct sk_buff *skb, int attrlen);
-extern struct nlattr *	nla_reserve(struct sk_buff *skb, int attrtype,
-				    int attrlen);
-extern void *		nla_reserve_nohdr(struct sk_buff *skb, int attrlen);
-extern void		__nla_put(struct sk_buff *skb, int attrtype,
-				  int attrlen, const void *data);
-extern void		__nla_put_nohdr(struct sk_buff *skb, int attrlen,
-					const void *data);
-extern int		nla_put(struct sk_buff *skb, int attrtype,
-				int attrlen, const void *data);
-extern int		nla_put_nohdr(struct sk_buff *skb, int attrlen,
-				      const void *data);
-extern int		nla_append(struct sk_buff *skb, int attrlen,
-				   const void *data);
+int netlink_rcv_skb(struct sk_buff *skb,
+		    int (*cb)(struct sk_buff *, struct nlmsghdr *));
+int nlmsg_notify(struct sock *sk, struct sk_buff *skb, u32 portid,
+		 unsigned int group, int report, gfp_t flags);
+
+int nla_validate(const struct nlattr *head, int len, int maxtype,
+		 const struct nla_policy *policy);
+int nla_parse(struct nlattr **tb, int maxtype, const struct nlattr *head,
+	      int len, const struct nla_policy *policy);
+int nla_policy_len(const struct nla_policy *, int);
+struct nlattr *nla_find(const struct nlattr *head, int len, int attrtype);
+size_t nla_strlcpy(char *dst, const struct nlattr *nla, size_t dstsize);
+int nla_memcpy(void *dest, const struct nlattr *src, int count);
+int nla_memcmp(const struct nlattr *nla, const void *data, size_t size);
+int nla_strcmp(const struct nlattr *nla, const char *str);
+struct nlattr *__nla_reserve(struct sk_buff *skb, int attrtype, int attrlen);
+void *__nla_reserve_nohdr(struct sk_buff *skb, int attrlen);
+struct nlattr *nla_reserve(struct sk_buff *skb, int attrtype, int attrlen);
+void *nla_reserve_nohdr(struct sk_buff *skb, int attrlen);
+void __nla_put(struct sk_buff *skb, int attrtype, int attrlen,
+	       const void *data);
+void __nla_put_nohdr(struct sk_buff *skb, int attrlen, const void *data);
+int nla_put(struct sk_buff *skb, int attrtype, int attrlen, const void *data);
+int nla_put_nohdr(struct sk_buff *skb, int attrlen, const void *data);
+int nla_append(struct sk_buff *skb, int attrlen, const void *data);
 
 /**************************************************************************
  * Netlink Messages
-- 
cgit 


From 96496127fe2f37c3670facfdbcc5cc51460c439c Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sat, 21 Sep 2013 10:22:51 -0700
Subject: netrom.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/netrom.h | 89 ++++++++++++++++++++++++++--------------------------
 1 file changed, 44 insertions(+), 45 deletions(-)

diff --git a/include/net/netrom.h b/include/net/netrom.h
index 121dcf854db5..110350aca3df 100644
--- a/include/net/netrom.h
+++ b/include/net/netrom.h
@@ -183,51 +183,50 @@ extern int  sysctl_netrom_routing_control;
 extern int  sysctl_netrom_link_fails_count;
 extern int  sysctl_netrom_reset_circuit;
 
-extern int  nr_rx_frame(struct sk_buff *, struct net_device *);
-extern void nr_destroy_socket(struct sock *);
+int nr_rx_frame(struct sk_buff *, struct net_device *);
+void nr_destroy_socket(struct sock *);
 
 /* nr_dev.c */
-extern int  nr_rx_ip(struct sk_buff *, struct net_device *);
-extern void nr_setup(struct net_device *);
+int nr_rx_ip(struct sk_buff *, struct net_device *);
+void nr_setup(struct net_device *);
 
 /* nr_in.c */
-extern int  nr_process_rx_frame(struct sock *, struct sk_buff *);
+int nr_process_rx_frame(struct sock *, struct sk_buff *);
 
 /* nr_loopback.c */
-extern void nr_loopback_init(void);
-extern void nr_loopback_clear(void);
-extern int  nr_loopback_queue(struct sk_buff *);
+void nr_loopback_init(void);
+void nr_loopback_clear(void);
+int nr_loopback_queue(struct sk_buff *);
 
 /* nr_out.c */
-extern void nr_output(struct sock *, struct sk_buff *);
-extern void nr_send_nak_frame(struct sock *);
-extern void nr_kick(struct sock *);
-extern void nr_transmit_buffer(struct sock *, struct sk_buff *);
-extern void nr_establish_data_link(struct sock *);
-extern void nr_enquiry_response(struct sock *);
-extern void nr_check_iframes_acked(struct sock *, unsigned short);
+void nr_output(struct sock *, struct sk_buff *);
+void nr_send_nak_frame(struct sock *);
+void nr_kick(struct sock *);
+void nr_transmit_buffer(struct sock *, struct sk_buff *);
+void nr_establish_data_link(struct sock *);
+void nr_enquiry_response(struct sock *);
+void nr_check_iframes_acked(struct sock *, unsigned short);
 
 /* nr_route.c */
-extern void nr_rt_device_down(struct net_device *);
-extern struct net_device *nr_dev_first(void);
-extern struct net_device *nr_dev_get(ax25_address *);
-extern int  nr_rt_ioctl(unsigned int, void __user *);
-extern void nr_link_failed(ax25_cb *, int);
-extern int  nr_route_frame(struct sk_buff *, ax25_cb *);
+void nr_rt_device_down(struct net_device *);
+struct net_device *nr_dev_first(void);
+struct net_device *nr_dev_get(ax25_address *);
+int nr_rt_ioctl(unsigned int, void __user *);
+void nr_link_failed(ax25_cb *, int);
+int nr_route_frame(struct sk_buff *, ax25_cb *);
 extern const struct file_operations nr_nodes_fops;
 extern const struct file_operations nr_neigh_fops;
-extern void nr_rt_free(void);
+void nr_rt_free(void);
 
 /* nr_subr.c */
-extern void nr_clear_queues(struct sock *);
-extern void nr_frames_acked(struct sock *, unsigned short);
-extern void nr_requeue_frames(struct sock *);
-extern int  nr_validate_nr(struct sock *, unsigned short);
-extern int  nr_in_rx_window(struct sock *, unsigned short);
-extern void nr_write_internal(struct sock *, int);
+void nr_clear_queues(struct sock *);
+void nr_frames_acked(struct sock *, unsigned short);
+void nr_requeue_frames(struct sock *);
+int nr_validate_nr(struct sock *, unsigned short);
+int nr_in_rx_window(struct sock *, unsigned short);
+void nr_write_internal(struct sock *, int);
 
-extern void __nr_transmit_reply(struct sk_buff *skb, int mine,
-	unsigned char cmdflags);
+void __nr_transmit_reply(struct sk_buff *skb, int mine, unsigned char cmdflags);
 
 /*
  * This routine is called when a Connect Acknowledge with the Choke Flag
@@ -247,24 +246,24 @@ do {									\
 	__nr_transmit_reply((skb), (mine), NR_RESET);			\
 } while (0)
 
-extern void nr_disconnect(struct sock *, int);
+void nr_disconnect(struct sock *, int);
 
 /* nr_timer.c */
-extern void nr_init_timers(struct sock *sk);
-extern void nr_start_heartbeat(struct sock *);
-extern void nr_start_t1timer(struct sock *);
-extern void nr_start_t2timer(struct sock *);
-extern void nr_start_t4timer(struct sock *);
-extern void nr_start_idletimer(struct sock *);
-extern void nr_stop_heartbeat(struct sock *);
-extern void nr_stop_t1timer(struct sock *);
-extern void nr_stop_t2timer(struct sock *);
-extern void nr_stop_t4timer(struct sock *);
-extern void nr_stop_idletimer(struct sock *);
-extern int  nr_t1timer_running(struct sock *);
+void nr_init_timers(struct sock *sk);
+void nr_start_heartbeat(struct sock *);
+void nr_start_t1timer(struct sock *);
+void nr_start_t2timer(struct sock *);
+void nr_start_t4timer(struct sock *);
+void nr_start_idletimer(struct sock *);
+void nr_stop_heartbeat(struct sock *);
+void nr_stop_t1timer(struct sock *);
+void nr_stop_t2timer(struct sock *);
+void nr_stop_t4timer(struct sock *);
+void nr_stop_idletimer(struct sock *);
+int nr_t1timer_running(struct sock *);
 
 /* sysctl_net_netrom.c */
-extern void nr_register_sysctl(void);
-extern void nr_unregister_sysctl(void);
+void nr_register_sysctl(void);
+void nr_unregister_sysctl(void);
 
 #endif
-- 
cgit 


From 8dda204164131ff56fffc5443c475d8ed57d5ebd Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sat, 21 Sep 2013 10:22:52 -0700
Subject: p8022.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/p8022.h | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/include/net/p8022.h b/include/net/p8022.h
index 42e9fac51b31..05e41383856b 100644
--- a/include/net/p8022.h
+++ b/include/net/p8022.h
@@ -1,13 +1,13 @@
 #ifndef _NET_P8022_H
 #define _NET_P8022_H
-extern struct datalink_proto *
-	register_8022_client(unsigned char type,
-			     int (*func)(struct sk_buff *skb,
-					 struct net_device *dev,
-					 struct packet_type *pt,
-					 struct net_device *orig_dev));
-extern void unregister_8022_client(struct datalink_proto *proto);
+struct datalink_proto *
+register_8022_client(unsigned char type,
+		     int (*func)(struct sk_buff *skb,
+				 struct net_device *dev,
+				 struct packet_type *pt,
+				 struct net_device *orig_dev));
+void unregister_8022_client(struct datalink_proto *proto);
 
-extern struct datalink_proto *make_8023_client(void);
-extern void destroy_8023_client(struct datalink_proto *dl);
+struct datalink_proto *make_8023_client(void);
+void destroy_8023_client(struct datalink_proto *dl);
 #endif
-- 
cgit 


From 3ab7107133289324b77c466bb40617c5fdd24f0c Mon Sep 17 00:00:00 2001
From: Nithin Sujir <nsujir@broadcom.com>
Date: Fri, 20 Sep 2013 16:46:55 -0700
Subject: tg3: Add function tg3_phy_shdw_write()

For consistency with other register access functions, add shadow
register access function of the type (register/val).

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/tg3.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 12d961c4ebca..bcb92d497b44 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -1326,6 +1326,12 @@ static int tg3_phy_toggle_auxctl_smdsp(struct tg3 *tp, bool enable)
 	return err;
 }
 
+static int tg3_phy_shdw_write(struct tg3 *tp, int reg, u32 val)
+{
+	return tg3_writephy(tp, MII_TG3_MISC_SHDW,
+			    reg | val | MII_TG3_MISC_SHDW_WREN);
+}
+
 static int tg3_bmcr_reset(struct tg3 *tp)
 {
 	u32 phy_control;
@@ -2218,25 +2224,21 @@ static void tg3_phy_toggle_apd(struct tg3 *tp, bool enable)
 		return;
 	}
 
-	reg = MII_TG3_MISC_SHDW_WREN |
-	      MII_TG3_MISC_SHDW_SCR5_SEL |
-	      MII_TG3_MISC_SHDW_SCR5_LPED |
+	reg = MII_TG3_MISC_SHDW_SCR5_LPED |
 	      MII_TG3_MISC_SHDW_SCR5_DLPTLM |
 	      MII_TG3_MISC_SHDW_SCR5_SDTL |
 	      MII_TG3_MISC_SHDW_SCR5_C125OE;
 	if (tg3_asic_rev(tp) != ASIC_REV_5784 || !enable)
 		reg |= MII_TG3_MISC_SHDW_SCR5_DLLAPD;
 
-	tg3_writephy(tp, MII_TG3_MISC_SHDW, reg);
+	tg3_phy_shdw_write(tp, MII_TG3_MISC_SHDW_SCR5_SEL, reg);
 
 
-	reg = MII_TG3_MISC_SHDW_WREN |
-	      MII_TG3_MISC_SHDW_APD_SEL |
-	      MII_TG3_MISC_SHDW_APD_WKTM_84MS;
+	reg = MII_TG3_MISC_SHDW_APD_WKTM_84MS;
 	if (enable)
 		reg |= MII_TG3_MISC_SHDW_APD_ENABLE;
 
-	tg3_writephy(tp, MII_TG3_MISC_SHDW, reg);
+	tg3_phy_shdw_write(tp, MII_TG3_MISC_SHDW_APD_SEL, reg);
 }
 
 static void tg3_phy_toggle_automdix(struct tg3 *tp, bool enable)
-- 
cgit 


From 68273712a19e9107a498a371532b3b3eb6dbb14c Mon Sep 17 00:00:00 2001
From: Nithin Sujir <nsujir@broadcom.com>
Date: Fri, 20 Sep 2013 16:46:56 -0700
Subject: tg3: Add support for new 577xx device ids

This patch adds support for 57764, 57765, 57787, 57782 and 57786
devices.

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/tg3.c | 15 +++++++++++++--
 drivers/net/ethernet/broadcom/tg3.h |  3 +++
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index bcb92d497b44..c98f6b04b559 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -337,6 +337,11 @@ static DEFINE_PCI_DEVICE_TABLE(tg3_pci_tbl) = {
 	{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5762)},
 	{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5725)},
 	{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_5727)},
+	{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57764)},
+	{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57767)},
+	{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57787)},
+	{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57782)},
+	{PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, TG3PCI_DEVICE_TIGON3_57786)},
 	{PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9DXX)},
 	{PCI_DEVICE(PCI_VENDOR_ID_SYSKONNECT, PCI_DEVICE_ID_SYSKONNECT_9MXX)},
 	{PCI_DEVICE(PCI_VENDOR_ID_ALTIMA, PCI_DEVICE_ID_ALTIMA_AC1000)},
@@ -15761,9 +15766,12 @@ static void tg3_detect_asic_rev(struct tg3 *tp, u32 misc_ctrl_reg)
 		    tp->pdev->device == TG3PCI_DEVICE_TIGON3_5718 ||
 		    tp->pdev->device == TG3PCI_DEVICE_TIGON3_5719 ||
 		    tp->pdev->device == TG3PCI_DEVICE_TIGON3_5720 ||
+		    tp->pdev->device == TG3PCI_DEVICE_TIGON3_57767 ||
+		    tp->pdev->device == TG3PCI_DEVICE_TIGON3_57764 ||
 		    tp->pdev->device == TG3PCI_DEVICE_TIGON3_5762 ||
 		    tp->pdev->device == TG3PCI_DEVICE_TIGON3_5725 ||
-		    tp->pdev->device == TG3PCI_DEVICE_TIGON3_5727)
+		    tp->pdev->device == TG3PCI_DEVICE_TIGON3_5727 ||
+		    tp->pdev->device == TG3PCI_DEVICE_TIGON3_57787)
 			reg = TG3PCI_GEN2_PRODID_ASICREV;
 		else if (tp->pdev->device == TG3PCI_DEVICE_TIGON3_57781 ||
 			 tp->pdev->device == TG3PCI_DEVICE_TIGON3_57785 ||
@@ -17411,9 +17419,12 @@ static int tg3_init_one(struct pci_dev *pdev,
 	    tp->pdev->device == TG3PCI_DEVICE_TIGON3_5718 ||
 	    tp->pdev->device == TG3PCI_DEVICE_TIGON3_5719 ||
 	    tp->pdev->device == TG3PCI_DEVICE_TIGON3_5720 ||
+	    tp->pdev->device == TG3PCI_DEVICE_TIGON3_57767 ||
+	    tp->pdev->device == TG3PCI_DEVICE_TIGON3_57764 ||
 	    tp->pdev->device == TG3PCI_DEVICE_TIGON3_5762 ||
 	    tp->pdev->device == TG3PCI_DEVICE_TIGON3_5725 ||
-	    tp->pdev->device == TG3PCI_DEVICE_TIGON3_5727) {
+	    tp->pdev->device == TG3PCI_DEVICE_TIGON3_5727 ||
+	    tp->pdev->device == TG3PCI_DEVICE_TIGON3_57787) {
 		tg3_flag_set(tp, ENABLE_APE);
 		tp->aperegs = pci_ioremap_bar(pdev, BAR_2);
 		if (!tp->aperegs) {
diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
index 70257808aa37..5c3835aa1e1b 100644
--- a/drivers/net/ethernet/broadcom/tg3.h
+++ b/drivers/net/ethernet/broadcom/tg3.h
@@ -68,6 +68,9 @@
 #define  TG3PCI_DEVICE_TIGON3_5762	 0x1687
 #define  TG3PCI_DEVICE_TIGON3_5725	 0x1643
 #define  TG3PCI_DEVICE_TIGON3_5727	 0x16f3
+#define  TG3PCI_DEVICE_TIGON3_57764	 0x1642
+#define  TG3PCI_DEVICE_TIGON3_57767	 0x1683
+#define  TG3PCI_DEVICE_TIGON3_57787	 0x1641
 /* 0x04 --> 0x2c unused */
 #define TG3PCI_SUBVENDOR_ID_BROADCOM		PCI_VENDOR_ID_BROADCOM
 #define TG3PCI_SUBDEVICE_ID_BROADCOM_95700A6	0x1644
-- 
cgit 


From 89f67978b54c7e9ef3562ae3cb44cf43fb781d5c Mon Sep 17 00:00:00 2001
From: Nithin Sujir <nsujir@broadcom.com>
Date: Fri, 20 Sep 2013 16:46:57 -0700
Subject: tg3: LED in shared mode does not blink during traffic

On the 5717, 5719, 5720 and 5762 devices, in shared link/activity mode,
the blink rate must be overridden with all bits set.

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/tg3.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index c98f6b04b559..40f8f99116b7 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -14928,6 +14928,12 @@ static void tg3_get_eeprom_hw_cfg(struct tg3 *tp)
 			    tg3_chip_rev_id(tp) != CHIPREV_ID_5750_A1)
 				tp->led_ctrl |= (LED_CTRL_MODE_PHY_1 |
 						 LED_CTRL_MODE_PHY_2);
+
+			if (tg3_flag(tp, 5717_PLUS) ||
+			    tg3_asic_rev(tp) == ASIC_REV_5762)
+				tp->led_ctrl |= LED_CTRL_BLINK_RATE_OVERRIDE |
+						LED_CTRL_BLINK_RATE_MASK;
+
 			break;
 
 		case SHASTA_EXT_LED_MAC:
-- 
cgit 


From db79e1e93e1215d38ff93e9cbb898fba75fd72f4 Mon Sep 17 00:00:00 2001
From: Nithin Sujir <nsujir@broadcom.com>
Date: Fri, 20 Sep 2013 16:46:58 -0700
Subject: tg3: Remove if 0'd code

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/tg3.c | 18 ------------------
 1 file changed, 18 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 40f8f99116b7..a1a07f3ad4ad 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -17068,10 +17068,6 @@ static int tg3_test_dma(struct tg3 *tp)
 
 	tw32(TG3PCI_DMA_RW_CTRL, tp->dma_rwctrl);
 
-#if 0
-	/* Unneeded, already done by tg3_get_invariants.  */
-	tg3_switch_clocks(tp);
-#endif
 
 	if (tg3_asic_rev(tp) != ASIC_REV_5700 &&
 	    tg3_asic_rev(tp) != ASIC_REV_5701)
@@ -17099,20 +17095,6 @@ static int tg3_test_dma(struct tg3 *tp)
 			break;
 		}
 
-#if 0
-		/* validate data reached card RAM correctly. */
-		for (i = 0; i < TEST_BUFFER_SIZE / sizeof(u32); i++) {
-			u32 val;
-			tg3_read_mem(tp, 0x2100 + (i*4), &val);
-			if (le32_to_cpu(val) != p[i]) {
-				dev_err(&tp->pdev->dev,
-					"%s: Buffer corrupted on device! "
-					"(%d != %d)\n", __func__, val, i);
-				/* ret = -ENODEV here? */
-			}
-			p[i] = 0;
-		}
-#endif
 		/* Now read it back. */
 		ret = tg3_do_test_dma(tp, buf, buf_dma, TEST_BUFFER_SIZE, false);
 		if (ret) {
-- 
cgit 


From 4bc814ab71951cab2dd745c08772ed2eb849a5f8 Mon Sep 17 00:00:00 2001
From: Nithin Sujir <nsujir@broadcom.com>
Date: Fri, 20 Sep 2013 16:46:59 -0700
Subject: tg3: Remove redundant if check

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/tg3.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index a1a07f3ad4ad..00431bcefc41 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -9203,10 +9203,7 @@ static int tg3_halt(struct tg3 *tp, int kind, bool silent)
 		memset(tp->hw_stats, 0, sizeof(struct tg3_hw_stats));
 	}
 
-	if (err)
-		return err;
-
-	return 0;
+	return err;
 }
 
 static int tg3_set_mac_addr(struct net_device *dev, void *p)
-- 
cgit 


From 21e315e15dfc5b392998352e9c3492b8a58672c1 Mon Sep 17 00:00:00 2001
From: Nithin Sujir <nsujir@broadcom.com>
Date: Fri, 20 Sep 2013 16:47:00 -0700
Subject: tg3: Appropriately classify interrupts during request_irq

Distinguish between tx, rx and txrx interrupts.

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/tg3.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 00431bcefc41..6fd86457630a 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -11039,7 +11039,18 @@ static int tg3_request_irq(struct tg3 *tp, int irq_num)
 		name = tp->dev->name;
 	else {
 		name = &tnapi->irq_lbl[0];
-		snprintf(name, IFNAMSIZ, "%s-%d", tp->dev->name, irq_num);
+		if (tnapi->tx_buffers && tnapi->rx_rcb)
+			snprintf(name, IFNAMSIZ,
+				 "%s-txrx-%d", tp->dev->name, irq_num);
+		else if (tnapi->tx_buffers)
+			snprintf(name, IFNAMSIZ,
+				 "%s-tx-%d", tp->dev->name, irq_num);
+		else if (tnapi->rx_rcb)
+			snprintf(name, IFNAMSIZ,
+				 "%s-rx-%d", tp->dev->name, irq_num);
+		else
+			snprintf(name, IFNAMSIZ,
+				 "%s-%d", tp->dev->name, irq_num);
 		name[IFNAMSIZ-1] = 0;
 	}
 
-- 
cgit 


From cb04be4daacfd1fa0d1998e91390c1c2edda7a5d Mon Sep 17 00:00:00 2001
From: Nithin Sujir <nsujir@broadcom.com>
Date: Fri, 20 Sep 2013 16:47:01 -0700
Subject: tg3: Remove unnecessary spinlock

The spinlock is not needed after conversion of tg3_flags from array to
set_bit().

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/tg3.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 6fd86457630a..4c949eea5d0d 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -12108,12 +12108,10 @@ static int tg3_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
 
 	device_set_wakeup_enable(dp, wol->wolopts & WAKE_MAGIC);
 
-	spin_lock_bh(&tp->lock);
 	if (device_may_wakeup(dp))
 		tg3_flag_set(tp, WOL_ENABLE);
 	else
 		tg3_flag_clear(tp, WOL_ENABLE);
-	spin_unlock_bh(&tp->lock);
 
 	return 0;
 }
-- 
cgit 


From e4cb29fa722b793ca78a4f324ba84b374b3bde29 Mon Sep 17 00:00:00 2001
From: Nithin Sujir <nsujir@broadcom.com>
Date: Fri, 20 Sep 2013 16:47:02 -0700
Subject: tg3: Update version to 3.134

Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/tg3.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 4c949eea5d0d..221a1815fd36 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -94,10 +94,10 @@ static inline void _tg3_flag_clear(enum TG3_FLAGS flag, unsigned long *bits)
 
 #define DRV_MODULE_NAME		"tg3"
 #define TG3_MAJ_NUM			3
-#define TG3_MIN_NUM			133
+#define TG3_MIN_NUM			134
 #define DRV_MODULE_VERSION	\
 	__stringify(TG3_MAJ_NUM) "." __stringify(TG3_MIN_NUM)
-#define DRV_MODULE_RELDATE	"Jul 29, 2013"
+#define DRV_MODULE_RELDATE	"Sep 16, 2013"
 
 #define RESET_KIND_SHUTDOWN	0
 #define RESET_KIND_INIT		1
-- 
cgit 


From ca9a563805f7ae821e3303b1bdbc65d3a3c783ff Mon Sep 17 00:00:00 2001
From: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Date: Thu, 19 Sep 2013 07:24:00 +0100
Subject: iio: ti_am335x_adc: Add continuous sampling support

Previously the driver had only one-shot reading functionality.
This patch adds continuous sampling support to the driver.

Continuous sampling starts when buffer is enabled.
HW IRQ wakes worker thread that pushes samples to userspace.
Sampling stops when buffer is disabled by userspace.

Patil Rachna (TI) laid the ground work for ADC HW register access.
Russ Dill (TI) fixed bugs in the driver relevant to FIFOs and IRQs.

I fixed channel scanning so multiple ADC channels can be read
simultaneously and pushed to userspace.
Restructured the driver to fit IIO ABI.
And added INDIO_BUFFER_HARDWARE mode.

Signed-off-by: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Russ Dill <Russ.Dill@ti.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/Kconfig              |   1 +
 drivers/iio/adc/ti_am335x_adc.c      | 213 ++++++++++++++++++++++++++++++++++-
 include/linux/mfd/ti_am335x_tscadc.h |   9 ++
 3 files changed, 218 insertions(+), 5 deletions(-)

diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 0cf5c611b4c6..8b885188b839 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -177,6 +177,7 @@ config TI_ADC081C
 config TI_AM335X_ADC
 	tristate "TI's AM335X ADC driver"
 	depends on MFD_TI_AM335X_TSCADC
+	select IIO_KFIFO_BUF
 	help
 	  Say yes here to build support for Texas Instruments ADC
 	  driver which is also a MFD client.
diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index ebe93eba3ec8..5287bffd8a75 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -28,12 +28,20 @@
 #include <linux/iio/driver.h>
 
 #include <linux/mfd/ti_am335x_tscadc.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/kfifo_buf.h>
+#include <linux/iio/trigger.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/triggered_buffer.h>
 
 struct tiadc_device {
 	struct ti_tscadc_dev *mfd_tscadc;
 	int channels;
 	u8 channel_line[8];
 	u8 channel_step[8];
+	int buffer_en_ch_steps;
+	struct iio_trigger *trig;
+	u16 data[8];
 };
 
 static unsigned int tiadc_readl(struct tiadc_device *adc, unsigned int reg)
@@ -56,8 +64,14 @@ static u32 get_adc_step_mask(struct tiadc_device *adc_dev)
 	return step_en;
 }
 
-static void tiadc_step_config(struct tiadc_device *adc_dev)
+static u32 get_adc_step_bit(struct tiadc_device *adc_dev, int chan)
 {
+	return 1 << adc_dev->channel_step[chan];
+}
+
+static void tiadc_step_config(struct iio_dev *indio_dev)
+{
+	struct tiadc_device *adc_dev = iio_priv(indio_dev);
 	unsigned int stepconfig;
 	int i, steps;
 
@@ -72,7 +86,11 @@ static void tiadc_step_config(struct tiadc_device *adc_dev)
 	 */
 
 	steps = TOTAL_STEPS - adc_dev->channels;
-	stepconfig = STEPCONFIG_AVG_16 | STEPCONFIG_FIFO1;
+	if (iio_buffer_enabled(indio_dev))
+		stepconfig = STEPCONFIG_AVG_16 | STEPCONFIG_FIFO1
+					| STEPCONFIG_MODE_SWCNT;
+	else
+		stepconfig = STEPCONFIG_AVG_16 | STEPCONFIG_FIFO1;
 
 	for (i = 0; i < adc_dev->channels; i++) {
 		int chan;
@@ -85,9 +103,175 @@ static void tiadc_step_config(struct tiadc_device *adc_dev)
 		adc_dev->channel_step[i] = steps;
 		steps++;
 	}
+}
+
+static irqreturn_t tiadc_irq_h(int irq, void *private)
+{
+	struct iio_dev *indio_dev = private;
+	struct tiadc_device *adc_dev = iio_priv(indio_dev);
+	unsigned int status, config;
+	status = tiadc_readl(adc_dev, REG_IRQSTATUS);
+
+	/*
+	 * ADC and touchscreen share the IRQ line.
+	 * FIFO0 interrupts are used by TSC. Handle FIFO1 IRQs here only
+	 */
+	if (status & IRQENB_FIFO1OVRRUN) {
+		/* FIFO Overrun. Clear flag. Disable/Enable ADC to recover */
+		config = tiadc_readl(adc_dev, REG_CTRL);
+		config &= ~(CNTRLREG_TSCSSENB);
+		tiadc_writel(adc_dev, REG_CTRL, config);
+		tiadc_writel(adc_dev, REG_IRQSTATUS, IRQENB_FIFO1OVRRUN
+				| IRQENB_FIFO1UNDRFLW | IRQENB_FIFO1THRES);
+		tiadc_writel(adc_dev, REG_CTRL, (config | CNTRLREG_TSCSSENB));
+		return IRQ_HANDLED;
+	} else if (status & IRQENB_FIFO1THRES) {
+		/* Disable irq and wake worker thread */
+		tiadc_writel(adc_dev, REG_IRQCLR, IRQENB_FIFO1THRES);
+		return IRQ_WAKE_THREAD;
+	}
+
+	return IRQ_NONE;
+}
+
+static irqreturn_t tiadc_worker_h(int irq, void *private)
+{
+	struct iio_dev *indio_dev = private;
+	struct tiadc_device *adc_dev = iio_priv(indio_dev);
+	int i, k, fifo1count, read;
+	u16 *data = adc_dev->data;
+
+	fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT);
+	for (k = 0; k < fifo1count; k = k + i) {
+		for (i = 0; i < (indio_dev->scan_bytes)/2; i++) {
+			read = tiadc_readl(adc_dev, REG_FIFO1);
+			data[i] = read & FIFOREAD_DATA_MASK;
+		}
+		iio_push_to_buffers(indio_dev, (u8 *) data);
+	}
+
+	tiadc_writel(adc_dev, REG_IRQSTATUS, IRQENB_FIFO1THRES);
+	tiadc_writel(adc_dev, REG_IRQENABLE, IRQENB_FIFO1THRES);
+
+	return IRQ_HANDLED;
+}
+
+static int tiadc_buffer_preenable(struct iio_dev *indio_dev)
+{
+	struct tiadc_device *adc_dev = iio_priv(indio_dev);
+	int i, fifo1count, read;
+
+	tiadc_writel(adc_dev, REG_IRQCLR, (IRQENB_FIFO1THRES |
+				IRQENB_FIFO1OVRRUN |
+				IRQENB_FIFO1UNDRFLW));
+
+	/* Flush FIFO. Needed in corner cases in simultaneous tsc/adc use */
+	fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT);
+	for (i = 0; i < fifo1count; i++)
+		read = tiadc_readl(adc_dev, REG_FIFO1);
+
+	return iio_sw_buffer_preenable(indio_dev);
+}
+
+static int tiadc_buffer_postenable(struct iio_dev *indio_dev)
+{
+	struct tiadc_device *adc_dev = iio_priv(indio_dev);
+	struct iio_buffer *buffer = indio_dev->buffer;
+	unsigned int enb = 0;
+	u8 bit;
+
+	tiadc_step_config(indio_dev);
+	for_each_set_bit(bit, buffer->scan_mask, adc_dev->channels)
+		enb |= (get_adc_step_bit(adc_dev, bit) << 1);
+	adc_dev->buffer_en_ch_steps = enb;
+
+	am335x_tsc_se_set(adc_dev->mfd_tscadc, enb);
+
+	tiadc_writel(adc_dev,  REG_IRQSTATUS, IRQENB_FIFO1THRES
+				| IRQENB_FIFO1OVRRUN | IRQENB_FIFO1UNDRFLW);
+	tiadc_writel(adc_dev,  REG_IRQENABLE, IRQENB_FIFO1THRES
+				| IRQENB_FIFO1OVRRUN);
+
+	return 0;
+}
+
+static int tiadc_buffer_predisable(struct iio_dev *indio_dev)
+{
+	struct tiadc_device *adc_dev = iio_priv(indio_dev);
+	int fifo1count, i, read;
+
+	tiadc_writel(adc_dev, REG_IRQCLR, (IRQENB_FIFO1THRES |
+				IRQENB_FIFO1OVRRUN | IRQENB_FIFO1UNDRFLW));
+	am335x_tsc_se_clr(adc_dev->mfd_tscadc, adc_dev->buffer_en_ch_steps);
 
+	/* Flush FIFO of leftover data in the time it takes to disable adc */
+	fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT);
+	for (i = 0; i < fifo1count; i++)
+		read = tiadc_readl(adc_dev, REG_FIFO1);
+
+	return 0;
 }
 
+static int tiadc_buffer_postdisable(struct iio_dev *indio_dev)
+{
+	tiadc_step_config(indio_dev);
+
+	return 0;
+}
+
+static const struct iio_buffer_setup_ops tiadc_buffer_setup_ops = {
+	.preenable = &tiadc_buffer_preenable,
+	.postenable = &tiadc_buffer_postenable,
+	.predisable = &tiadc_buffer_predisable,
+	.postdisable = &tiadc_buffer_postdisable,
+};
+
+int tiadc_iio_buffered_hardware_setup(struct iio_dev *indio_dev,
+	irqreturn_t (*pollfunc_bh)(int irq, void *p),
+	irqreturn_t (*pollfunc_th)(int irq, void *p),
+	int irq,
+	unsigned long flags,
+	const struct iio_buffer_setup_ops *setup_ops)
+{
+	int ret;
+
+	indio_dev->buffer = iio_kfifo_allocate(indio_dev);
+	if (!indio_dev->buffer)
+		return -ENOMEM;
+
+	ret = request_threaded_irq(irq,	pollfunc_th, pollfunc_bh,
+				flags, indio_dev->name, indio_dev);
+	if (ret)
+		goto error_kfifo_free;
+
+	indio_dev->setup_ops = setup_ops;
+	indio_dev->modes |= INDIO_BUFFER_HARDWARE;
+
+	ret = iio_buffer_register(indio_dev,
+				  indio_dev->channels,
+				  indio_dev->num_channels);
+	if (ret)
+		goto error_free_irq;
+
+	return 0;
+
+error_free_irq:
+	free_irq(irq, indio_dev);
+error_kfifo_free:
+	iio_kfifo_free(indio_dev->buffer);
+	return ret;
+}
+
+static void tiadc_iio_buffered_hardware_remove(struct iio_dev *indio_dev)
+{
+	struct tiadc_device *adc_dev = iio_priv(indio_dev);
+
+	free_irq(adc_dev->mfd_tscadc->irq, indio_dev);
+	iio_kfifo_free(indio_dev->buffer);
+	iio_buffer_unregister(indio_dev);
+}
+
+
 static const char * const chan_name_ain[] = {
 	"AIN0",
 	"AIN1",
@@ -120,6 +304,7 @@ static int tiadc_channel_init(struct iio_dev *indio_dev, int channels)
 		chan->channel = adc_dev->channel_line[i];
 		chan->info_mask_separate = BIT(IIO_CHAN_INFO_RAW);
 		chan->datasheet_name = chan_name_ain[chan->channel];
+		chan->scan_index = i;
 		chan->scan_type.sign = 'u';
 		chan->scan_type.realbits = 12;
 		chan->scan_type.storagebits = 16;
@@ -147,6 +332,10 @@ static int tiadc_read_raw(struct iio_dev *indio_dev,
 	u32 step_en;
 	unsigned long timeout = jiffies + usecs_to_jiffies
 				(IDLE_TIMEOUT * adc_dev->channels);
+
+	if (iio_buffer_enabled(indio_dev))
+		return -EBUSY;
+
 	step_en = get_adc_step_mask(adc_dev);
 	am335x_tsc_se_set(adc_dev->mfd_tscadc, step_en);
 
@@ -237,20 +426,33 @@ static int tiadc_probe(struct platform_device *pdev)
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &tiadc_info;
 
-	tiadc_step_config(adc_dev);
+	tiadc_step_config(indio_dev);
+	tiadc_writel(adc_dev, REG_FIFO1THR, FIFO1_THRESHOLD);
 
 	err = tiadc_channel_init(indio_dev, adc_dev->channels);
 	if (err < 0)
 		return err;
 
-	err = iio_device_register(indio_dev);
+	err = tiadc_iio_buffered_hardware_setup(indio_dev,
+		&tiadc_worker_h,
+		&tiadc_irq_h,
+		adc_dev->mfd_tscadc->irq,
+		IRQF_SHARED,
+		&tiadc_buffer_setup_ops);
+
 	if (err)
 		goto err_free_channels;
 
+	err = iio_device_register(indio_dev);
+	if (err)
+		goto err_buffer_unregister;
+
 	platform_set_drvdata(pdev, indio_dev);
 
 	return 0;
 
+err_buffer_unregister:
+	tiadc_iio_buffered_hardware_remove(indio_dev);
 err_free_channels:
 	tiadc_channels_remove(indio_dev);
 	return err;
@@ -263,6 +465,7 @@ static int tiadc_remove(struct platform_device *pdev)
 	u32 step_en;
 
 	iio_device_unregister(indio_dev);
+	tiadc_iio_buffered_hardware_remove(indio_dev);
 	tiadc_channels_remove(indio_dev);
 
 	step_en = get_adc_step_mask(adc_dev);
@@ -301,7 +504,7 @@ static int tiadc_resume(struct device *dev)
 	restore &= ~(CNTRLREG_POWERDOWN);
 	tiadc_writel(adc_dev, REG_CTRL, restore);
 
-	tiadc_step_config(adc_dev);
+	tiadc_step_config(indio_dev);
 
 	return 0;
 }
diff --git a/include/linux/mfd/ti_am335x_tscadc.h b/include/linux/mfd/ti_am335x_tscadc.h
index db1791bb997a..7d98562b3b51 100644
--- a/include/linux/mfd/ti_am335x_tscadc.h
+++ b/include/linux/mfd/ti_am335x_tscadc.h
@@ -46,16 +46,24 @@
 /* Step Enable */
 #define STEPENB_MASK		(0x1FFFF << 0)
 #define STEPENB(val)		((val) << 0)
+#define ENB(val)			(1 << (val))
+#define STPENB_STEPENB		STEPENB(0x1FFFF)
+#define STPENB_STEPENB_TC	STEPENB(0x1FFF)
 
 /* IRQ enable */
 #define IRQENB_HW_PEN		BIT(0)
 #define IRQENB_FIFO0THRES	BIT(2)
+#define IRQENB_FIFO0OVRRUN	BIT(3)
+#define IRQENB_FIFO0UNDRFLW	BIT(4)
 #define IRQENB_FIFO1THRES	BIT(5)
+#define IRQENB_FIFO1OVRRUN	BIT(6)
+#define IRQENB_FIFO1UNDRFLW	BIT(7)
 #define IRQENB_PENUP		BIT(9)
 
 /* Step Configuration */
 #define STEPCONFIG_MODE_MASK	(3 << 0)
 #define STEPCONFIG_MODE(val)	((val) << 0)
+#define STEPCONFIG_MODE_SWCNT	STEPCONFIG_MODE(1)
 #define STEPCONFIG_MODE_HWSYNC	STEPCONFIG_MODE(2)
 #define STEPCONFIG_AVG_MASK	(7 << 2)
 #define STEPCONFIG_AVG(val)	((val) << 2)
@@ -124,6 +132,7 @@
 #define	MAX_CLK_DIV		7
 #define TOTAL_STEPS		16
 #define TOTAL_CHANNELS		8
+#define FIFO1_THRESHOLD		19
 
 /*
 * ADC runs at 3MHz, and it takes
-- 
cgit 


From 4caf279a285cb126023dde1386c6f1cebcfa7e29 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Wed, 18 Sep 2013 22:47:00 +0100
Subject: iio: Fix tcs3472 dev-to-indio_dev conversion in suspend/resume

dev_to_iio_dev() is a false friend

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/light/tcs3472.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/light/tcs3472.c b/drivers/iio/light/tcs3472.c
index 7bf296943745..0b4ed57d746e 100644
--- a/drivers/iio/light/tcs3472.c
+++ b/drivers/iio/light/tcs3472.c
@@ -330,12 +330,15 @@ static int tcs3472_remove(struct i2c_client *client)
 #ifdef CONFIG_PM_SLEEP
 static int tcs3472_suspend(struct device *dev)
 {
-	return tcs3472_powerdown(iio_priv(dev_to_iio_dev(dev)));
+	struct tcs3472_data *data = iio_priv(i2c_get_clientdata(
+		to_i2c_client(dev)));
+	return tcs3472_powerdown(data);
 }
 
 static int tcs3472_resume(struct device *dev)
 {
-	struct tcs3472_data *data = iio_priv(dev_to_iio_dev(dev));
+	struct tcs3472_data *data = iio_priv(i2c_get_clientdata(
+		to_i2c_client(dev)));
 	return i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE,
 		data->enable | (TCS3472_ENABLE_AEN | TCS3472_ENABLE_PON));
 }
-- 
cgit 


From 183f41734c7cf33cc37efaf7dd2f82866513d74d Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Wed, 18 Sep 2013 22:10:00 +0100
Subject: iio: Pass scan mask as unsigned long

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/industrialio-buffer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 58180ec36fe8..2361fbc74e33 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -429,8 +429,8 @@ static const unsigned long *iio_scan_mask_match(const unsigned long *av_masks,
 	return NULL;
 }
 
-static int iio_compute_scan_bytes(struct iio_dev *indio_dev, const long *mask,
-				  bool timestamp)
+static int iio_compute_scan_bytes(struct iio_dev *indio_dev,
+				const unsigned long *mask, bool timestamp)
 {
 	const struct iio_chan_spec *ch;
 	unsigned bytes = 0;
-- 
cgit 


From d2c3d072c4aded65f0632223cc0d3a8a2e577b3a Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: iio: Add iio_push_buffers_with_timestamp() helper

Drivers using software buffers often store the timestamp in their data buffer
before calling iio_push_to_buffers() with that data buffer. Storing the
timestamp in the buffer usually involves some ugly pointer arithmetic. This
patch adds a new helper function called iio_push_buffers_with_timestamp() which
is similar to iio_push_to_buffers but takes an additional timestamp parameter.
The function will help to hide to uglyness in one central place instead of
exposing it in every driver. If timestamps are enabled for the IIO device
iio_push_buffers_with_timestamp() will store the timestamp as the last element
in buffer, before passing the buffer on to iio_push_buffers(). The buffer needs
large enough to hold the timestamp in this case. If timestamps are disabled
iio_push_buffers_with_timestamp() will behave just like iio_push_buffers().

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Oleksandr Kravchenko <o.v.kravchenko@globallogic.com>
Cc: Josh Wu <josh.wu@atmel.com>
Cc: Denis Ciocca <denis.ciocca@gmail.com>
Cc: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Cc: Ge Gao <ggao@invensense.com>
Cc: Peter Meerwald <pmeerw@pmeerw.net>
Cc: Jacek Anaszewski <j.anaszewski@samsung.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Marek Vasut <marex@denx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 include/linux/iio/buffer.h | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/include/linux/iio/buffer.h b/include/linux/iio/buffer.h
index e5507e999ed1..a1124bdc4cac 100644
--- a/include/linux/iio/buffer.h
+++ b/include/linux/iio/buffer.h
@@ -122,6 +122,31 @@ int iio_scan_mask_set(struct iio_dev *indio_dev,
  */
 int iio_push_to_buffers(struct iio_dev *indio_dev, const void *data);
 
+/*
+ * iio_push_to_buffers_with_timestamp() - push data and timestamp to buffers
+ * @indio_dev:		iio_dev structure for device.
+ * @data:		sample data
+ * @timestamp:		timestamp for the sample data
+ *
+ * Pushes data to the IIO device's buffers. If timestamps are enabled for the
+ * device the function will store the supplied timestamp as the last element in
+ * the sample data buffer before pushing it to the device buffers. The sample
+ * data buffer needs to be large enough to hold the additional timestamp
+ * (usually the buffer should be indio->scan_bytes bytes large).
+ *
+ * Returns 0 on success, a negative error code otherwise.
+ */
+static inline int iio_push_to_buffers_with_timestamp(struct iio_dev *indio_dev,
+	void *data, int64_t timestamp)
+{
+	if (indio_dev->scan_timestamp) {
+		size_t ts_offset = indio_dev->scan_bytes / sizeof(int64_t) - 1;
+		((int64_t *)data)[ts_offset] = timestamp;
+	}
+
+	return iio_push_to_buffers(indio_dev, data);
+}
+
 int iio_update_demux(struct iio_dev *indio_dev);
 
 /**
-- 
cgit 


From 6bf9d87756d990dfca6a5102229271a9154362ba Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: iio:bma180: Use iio_push_buffers_with_timestamp()

Makes the code shorter and a bit less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Oleksandr Kravchenko <o.v.kravchenko@globallogic.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/accel/bma180.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/iio/accel/bma180.c b/drivers/iio/accel/bma180.c
index 3eff2469dba9..bda7a8343ddd 100644
--- a/drivers/iio/accel/bma180.c
+++ b/drivers/iio/accel/bma180.c
@@ -471,13 +471,10 @@ static irqreturn_t bma180_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct bma180_data *data = iio_priv(indio_dev);
+	int64_t time_ns = iio_get_time_ns();
 	int bit, ret, i = 0;
 
 	mutex_lock(&data->mutex);
-	if (indio_dev->scan_timestamp) {
-		ret = indio_dev->scan_bytes / sizeof(s64) - 1;
-		((s64 *)data->buff)[ret] = iio_get_time_ns();
-	}
 
 	for_each_set_bit(bit, indio_dev->buffer->scan_mask,
 			 indio_dev->masklength) {
@@ -490,7 +487,7 @@ static irqreturn_t bma180_trigger_handler(int irq, void *p)
 	}
 	mutex_unlock(&data->mutex);
 
-	iio_push_to_buffers(indio_dev, data->buff);
+	iio_push_to_buffers_with_timestamp(indio_dev, data->buff, time_ns);
 err:
 	iio_trigger_notify_done(indio_dev->trig);
 
-- 
cgit 


From fce8abfda40a764f4662ee354c1646ec78061371 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: iio:ad7266: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ad7266.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c
index c304966a4f60..656aa3e102f2 100644
--- a/drivers/iio/adc/ad7266.c
+++ b/drivers/iio/adc/ad7266.c
@@ -96,9 +96,8 @@ static irqreturn_t ad7266_trigger_handler(int irq, void *p)
 
 	ret = spi_read(st->spi, st->data, 4);
 	if (ret == 0) {
-		if (indio_dev->scan_timestamp)
-			((s64 *)st->data)[1] = pf->timestamp;
-		iio_push_to_buffers(indio_dev, st->data);
+		iio_push_to_buffers_with_timestamp(indio_dev, st->data,
+			    pf->timestamp);
 	}
 
 	iio_trigger_notify_done(indio_dev->trig);
-- 
cgit 


From 85ec2372c8c0a9d1b2faf4057bc430ce8b939903 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: iio:ad7298: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ad7298.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/iio/adc/ad7298.c b/drivers/iio/adc/ad7298.c
index 0812556c11ff..2a3b65c74af9 100644
--- a/drivers/iio/adc/ad7298.c
+++ b/drivers/iio/adc/ad7298.c
@@ -159,20 +159,14 @@ static irqreturn_t ad7298_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct ad7298_state *st = iio_priv(indio_dev);
-	s64 time_ns = 0;
 	int b_sent;
 
 	b_sent = spi_sync(st->spi, &st->ring_msg);
 	if (b_sent)
 		goto done;
 
-	if (indio_dev->scan_timestamp) {
-		time_ns = iio_get_time_ns();
-		memcpy((u8 *)st->rx_buf + indio_dev->scan_bytes - sizeof(s64),
-			&time_ns, sizeof(time_ns));
-	}
-
-	iio_push_to_buffers(indio_dev, st->rx_buf);
+	iio_push_to_buffers_with_timestamp(indio_dev, st->rx_buf,
+		iio_get_time_ns());
 
 done:
 	iio_trigger_notify_done(indio_dev->trig);
-- 
cgit 


From b05583a71deb5ec92e644c25aa5edbff249960c6 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: iio:ad7476: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ad7476.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/iio/adc/ad7476.c b/drivers/iio/adc/ad7476.c
index 6d2b1d8d1a1f..8d808b9de909 100644
--- a/drivers/iio/adc/ad7476.c
+++ b/drivers/iio/adc/ad7476.c
@@ -64,19 +64,14 @@ static irqreturn_t ad7476_trigger_handler(int irq, void  *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct ad7476_state *st = iio_priv(indio_dev);
-	s64 time_ns;
 	int b_sent;
 
 	b_sent = spi_sync(st->spi, &st->msg);
 	if (b_sent < 0)
 		goto done;
 
-	time_ns = iio_get_time_ns();
-
-	if (indio_dev->scan_timestamp)
-		((s64 *)st->data)[1] = time_ns;
-
-	iio_push_to_buffers(indio_dev, st->data);
+	iio_push_to_buffers_with_timestamp(indio_dev, st->data,
+		iio_get_time_ns());
 done:
 	iio_trigger_notify_done(indio_dev->trig);
 
-- 
cgit 


From 5afd602b90f70e1fb6768165eb3efae28babe541 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: iio:ad7887: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ad7887.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/iio/adc/ad7887.c b/drivers/iio/adc/ad7887.c
index 9dd077b78759..faedd0e165f6 100644
--- a/drivers/iio/adc/ad7887.c
+++ b/drivers/iio/adc/ad7887.c
@@ -121,20 +121,14 @@ static irqreturn_t ad7887_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct ad7887_state *st = iio_priv(indio_dev);
-	s64 time_ns;
 	int b_sent;
 
 	b_sent = spi_sync(st->spi, st->ring_msg);
 	if (b_sent)
 		goto done;
 
-	time_ns = iio_get_time_ns();
-
-	if (indio_dev->scan_timestamp)
-		memcpy(st->data + indio_dev->scan_bytes - sizeof(s64),
-		       &time_ns, sizeof(time_ns));
-
-	iio_push_to_buffers(indio_dev, st->data);
+	iio_push_to_buffers_with_timestamp(indio_dev, st->data,
+		iio_get_time_ns());
 done:
 	iio_trigger_notify_done(indio_dev->trig);
 
-- 
cgit 


From 9f4fa4f714241119ee9b0065648e58a2f7012cc9 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: iio:ad7923: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ad7923.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/iio/adc/ad7923.c b/drivers/iio/adc/ad7923.c
index 7eb4cb5a7f0d..28732c28e819 100644
--- a/drivers/iio/adc/ad7923.c
+++ b/drivers/iio/adc/ad7923.c
@@ -174,20 +174,14 @@ static irqreturn_t ad7923_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct ad7923_state *st = iio_priv(indio_dev);
-	s64 time_ns = 0;
 	int b_sent;
 
 	b_sent = spi_sync(st->spi, &st->ring_msg);
 	if (b_sent)
 		goto done;
 
-	if (indio_dev->scan_timestamp) {
-		time_ns = iio_get_time_ns();
-		memcpy((u8 *)st->rx_buf + indio_dev->scan_bytes - sizeof(s64),
-			&time_ns, sizeof(time_ns));
-	}
-
-	iio_push_to_buffers(indio_dev, st->rx_buf);
+	iio_push_to_buffers_with_timestamp(indio_dev, st->rx_buf,
+		iio_get_time_ns());
 
 done:
 	iio_trigger_notify_done(indio_dev->trig);
-- 
cgit 


From a1be505f49cacb288182c7281680ef5f93dea2f7 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: iio:ad_sigma_delta: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ad_sigma_delta.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c
index 78d276f40c8e..2b5911274763 100644
--- a/drivers/iio/adc/ad_sigma_delta.c
+++ b/drivers/iio/adc/ad_sigma_delta.c
@@ -368,10 +368,6 @@ static irqreturn_t ad_sd_trigger_handler(int irq, void *p)
 
 	memset(data, 0x00, 16);
 
-	/* Guaranteed to be aligned with 8 byte boundary */
-	if (indio_dev->scan_timestamp)
-		((s64 *)data)[1] = pf->timestamp;
-
 	reg_size = indio_dev->channels[0].scan_type.realbits +
 			indio_dev->channels[0].scan_type.shift;
 	reg_size = DIV_ROUND_UP(reg_size, 8);
@@ -391,7 +387,7 @@ static irqreturn_t ad_sd_trigger_handler(int irq, void *p)
 		break;
 	}
 
-	iio_push_to_buffers(indio_dev, data);
+	iio_push_to_buffers_with_timestamp(indio_dev, data, pf->timestamp);
 
 	iio_trigger_notify_done(indio_dev->trig);
 	sigma_delta->irq_dis = false;
-- 
cgit 


From e79cece0dc82c54b0c7903381ee8cfcdc3b5bfe1 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: iio:at91_adc: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/at91_adc.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index 79c53b8e195c..5c8f690ce92f 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -83,13 +83,7 @@ static irqreturn_t at91_adc_trigger_handler(int irq, void *p)
 		j++;
 	}
 
-	if (idev->scan_timestamp) {
-		s64 *timestamp = (s64 *)((u8 *)st->buffer +
-					ALIGN(j, sizeof(s64)));
-		*timestamp = pf->timestamp;
-	}
-
-	iio_push_to_buffers(idev, st->buffer);
+	iio_push_to_buffers_with_timestamp(idev, st->buffer, pf->timestamp);
 
 	iio_trigger_notify_done(idev->trig);
 
-- 
cgit 


From d49d95c25db3dc7320839a817310dc4a2d60fbba Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: iio:max1363: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/max1363.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/iio/adc/max1363.c b/drivers/iio/adc/max1363.c
index 1e7160de0b90..b4bc166d57b0 100644
--- a/drivers/iio/adc/max1363.c
+++ b/drivers/iio/adc/max1363.c
@@ -1436,7 +1436,6 @@ static irqreturn_t max1363_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct max1363_state *st = iio_priv(indio_dev);
-	s64 time_ns;
 	__u8 *rxbuf;
 	int b_sent;
 	size_t d_size;
@@ -1470,11 +1469,7 @@ static irqreturn_t max1363_trigger_handler(int irq, void *p)
 	if (b_sent < 0)
 		goto done_free;
 
-	time_ns = iio_get_time_ns();
-
-	if (indio_dev->scan_timestamp)
-		memcpy(rxbuf + d_size - sizeof(s64), &time_ns, sizeof(time_ns));
-	iio_push_to_buffers(indio_dev, rxbuf);
+	iio_push_to_buffers_with_timestamp(indio_dev, rxbuf, iio_get_time_ns());
 
 done_free:
 	kfree(rxbuf);
-- 
cgit 


From aa4e24279a6b3caa40def6fe81a01772f8cade7e Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: iio:st_sensors: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Denis Ciocca <denis.ciocca@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/common/st_sensors/st_sensors_buffer.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/iio/common/st_sensors/st_sensors_buffer.c b/drivers/iio/common/st_sensors/st_sensors_buffer.c
index 71a2c5f63b9c..1665c8e4b62b 100644
--- a/drivers/iio/common/st_sensors/st_sensors_buffer.c
+++ b/drivers/iio/common/st_sensors/st_sensors_buffer.c
@@ -113,11 +113,8 @@ irqreturn_t st_sensors_trigger_handler(int irq, void *p)
 	if (len < 0)
 		goto st_sensors_get_buffer_element_error;
 
-	if (indio_dev->scan_timestamp)
-		*(s64 *)((u8 *)sdata->buffer_data +
-				ALIGN(len, sizeof(s64))) = pf->timestamp;
-
-	iio_push_to_buffers(indio_dev, sdata->buffer_data);
+	iio_push_to_buffers_with_timestamp(indio_dev, sdata->buffer_data,
+		pf->timestamp);
 
 st_sensors_get_buffer_element_error:
 	iio_trigger_notify_done(indio_dev->trig);
-- 
cgit 


From 36e0371e7764a9b954ffdde6a4834e357ba31d28 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: iio:itg3200: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/gyro/itg3200_buffer.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/iio/gyro/itg3200_buffer.c b/drivers/iio/gyro/itg3200_buffer.c
index 6b3c30118c48..e3b3c5084070 100644
--- a/drivers/iio/gyro/itg3200_buffer.c
+++ b/drivers/iio/gyro/itg3200_buffer.c
@@ -55,11 +55,8 @@ static irqreturn_t itg3200_trigger_handler(int irq, void *p)
 	if (ret < 0)
 		goto error_ret;
 
-	if (indio_dev->scan_timestamp)
-		memcpy(buf + indio_dev->scan_bytes - sizeof(s64),
-				&pf->timestamp, sizeof(pf->timestamp));
+	iio_push_to_buffers_with_timestamp(indio_dev, buf, pf->timestamp);
 
-	iio_push_to_buffers(indio_dev, buf);
 	iio_trigger_notify_done(indio_dev->trig);
 
 error_ret:
-- 
cgit 


From 8c7b0322b9372998b5d39abe03e5f40cdf85786b Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: iio:adis16400: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/imu/adis16400_buffer.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/iio/imu/adis16400_buffer.c b/drivers/iio/imu/adis16400_buffer.c
index 054c01d6e73c..f2cf829e5df1 100644
--- a/drivers/iio/imu/adis16400_buffer.c
+++ b/drivers/iio/imu/adis16400_buffer.c
@@ -82,13 +82,8 @@ irqreturn_t adis16400_trigger_handler(int irq, void *p)
 		spi_setup(st->adis.spi);
 	}
 
-	/* Guaranteed to be aligned with 8 byte boundary */
-	if (indio_dev->scan_timestamp) {
-		void *b = adis->buffer + indio_dev->scan_bytes - sizeof(s64);
-		*(s64 *)b = pf->timestamp;
-	}
-
-	iio_push_to_buffers(indio_dev, adis->buffer);
+	iio_push_to_buffers_with_timestamp(indio_dev, adis->buffer,
+		pf->timestamp);
 
 	iio_trigger_notify_done(indio_dev->trig);
 
-- 
cgit 


From 419d8ce4eafbeb45303bdf94103ac07cc89ab5bb Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: iio:adis_lib: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/imu/adis_buffer.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/iio/imu/adis_buffer.c b/drivers/iio/imu/adis_buffer.c
index 99d8e0b0dd34..cb32b593f1c5 100644
--- a/drivers/iio/imu/adis_buffer.c
+++ b/drivers/iio/imu/adis_buffer.c
@@ -102,13 +102,8 @@ static irqreturn_t adis_trigger_handler(int irq, void *p)
 		mutex_unlock(&adis->txrx_lock);
 	}
 
-	/* Guaranteed to be aligned with 8 byte boundary */
-	if (indio_dev->scan_timestamp) {
-		void *b = adis->buffer + indio_dev->scan_bytes - sizeof(s64);
-		*(s64 *)b = pf->timestamp;
-	}
-
-	iio_push_to_buffers(indio_dev, adis->buffer);
+	iio_push_to_buffers_with_timestamp(indio_dev, adis->buffer,
+		pf->timestamp);
 
 	iio_trigger_notify_done(indio_dev->trig);
 
-- 
cgit 


From 01901d48fde9aeebe10199deb530e391b920392d Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: iio:mpu6050: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Ge Gao <ggao@invensense.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
index 7da0832f187b..429517117eff 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
@@ -124,7 +124,6 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p)
 	u8 data[INV_MPU6050_OUTPUT_DATA_SIZE];
 	u16 fifo_count;
 	s64 timestamp;
-	u64 *tmp;
 
 	mutex_lock(&indio_dev->mlock);
 	if (!(st->chip_config.accl_fifo_enable |
@@ -170,9 +169,8 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p)
 		if (0 == result)
 			timestamp = 0;
 
-		tmp = (u64 *)data;
-		tmp[DIV_ROUND_UP(bytes_per_datum, 8)] = timestamp;
-		result = iio_push_to_buffers(indio_dev, data);
+		result = iio_push_to_buffers_with_timestamp(indio_dev, data,
+			timestamp);
 		if (result)
 			goto flush_fifo;
 		fifo_count -= bytes_per_datum;
-- 
cgit 


From a9f3acd0aac58c128686e0c775081b416048392c Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: iio:adjd_s311: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/light/adjd_s311.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/iio/light/adjd_s311.c b/drivers/iio/light/adjd_s311.c
index c9c8b002b27d..39f639241e81 100644
--- a/drivers/iio/light/adjd_s311.c
+++ b/drivers/iio/light/adjd_s311.c
@@ -138,10 +138,7 @@ static irqreturn_t adjd_s311_trigger_handler(int irq, void *p)
 		len += 2;
 	}
 
-	if (indio_dev->scan_timestamp)
-		*(s64 *)((u8 *)data->buffer + ALIGN(len, sizeof(s64)))
-			= time_ns;
-	iio_push_to_buffers(indio_dev, data->buffer);
+	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer, time_ns);
 
 done:
 	iio_trigger_notify_done(indio_dev->trig);
-- 
cgit 


From 0624bf847dd0ddc9bf71ccb9d1a6fffa9e5a8dd0 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: iio:tcs3472: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/light/tcs3472.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/light/tcs3472.c b/drivers/iio/light/tcs3472.c
index 0b4ed57d746e..45df2204614a 100644
--- a/drivers/iio/light/tcs3472.c
+++ b/drivers/iio/light/tcs3472.c
@@ -192,10 +192,8 @@ static irqreturn_t tcs3472_trigger_handler(int irq, void *p)
 		len += 2;
 	}
 
-	if (indio_dev->scan_timestamp)
-		*(s64 *)((u8 *)data->buffer + ALIGN(len, sizeof(s64)))
-			= iio_get_time_ns();
-	iio_push_to_buffers(indio_dev, data->buffer);
+	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+		iio_get_time_ns());
 
 done:
 	iio_trigger_notify_done(indio_dev->trig);
-- 
cgit 


From 3b271798330ede49dc41615ce4eceb7a3aef8cd9 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: iio:gp2ap020a00f: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/light/gp2ap020a00f.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/iio/light/gp2ap020a00f.c b/drivers/iio/light/gp2ap020a00f.c
index 62809b53a7f0..b1e4615b87e8 100644
--- a/drivers/iio/light/gp2ap020a00f.c
+++ b/drivers/iio/light/gp2ap020a00f.c
@@ -988,13 +988,8 @@ static irqreturn_t gp2ap020a00f_trigger_handler(int irq, void *data)
 		}
 	}
 
-	if (indio_dev->scan_timestamp) {
-		s64 *timestamp = (s64 *)((u8 *)priv->buffer +
-						ALIGN(d_size, sizeof(s64)));
-		*timestamp = pf->timestamp;
-	}
-
-	iio_push_to_buffers(indio_dev, priv->buffer);
+	iio_push_to_buffers_with_timestamp(indio_dev, priv->buffer,
+		pf->timestamp);
 done:
 	iio_trigger_notify_done(indio_dev->trig);
 
-- 
cgit 


From fdc8020c10161a460c4df0a0fe4a74847366a817 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: staging:iio:lis3l02dq: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/accel/lis3l02dq_ring.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c
index 36dcc7e0b90d..aae86ddd658b 100644
--- a/drivers/staging/iio/accel/lis3l02dq_ring.c
+++ b/drivers/staging/iio/accel/lis3l02dq_ring.c
@@ -146,11 +146,7 @@ static irqreturn_t lis3l02dq_trigger_handler(int irq, void *p)
 	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
 		len = lis3l02dq_get_buffer_element(indio_dev, data);
 
-	  /* Guaranteed to be aligned with 8 byte boundary */
-	if (indio_dev->scan_timestamp)
-		*(s64 *)((u8 *)data + ALIGN(len, sizeof(s64)))
-			= pf->timestamp;
-	iio_push_to_buffers(indio_dev, data);
+	iio_push_to_buffers_with_timestamp(indio_dev, data, pf->timestamp);
 
 	kfree(data);
 done:
-- 
cgit 


From 5c757ac249c22560f34c523378eafdba37dab80d Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: staging:iio:ad7606: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/ad7606_ring.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/staging/iio/adc/ad7606_ring.c b/drivers/staging/iio/adc/ad7606_ring.c
index 2b25cb07fe41..3bf174cb19b1 100644
--- a/drivers/staging/iio/adc/ad7606_ring.c
+++ b/drivers/staging/iio/adc/ad7606_ring.c
@@ -46,7 +46,6 @@ static void ad7606_poll_bh_to_ring(struct work_struct *work_s)
 	struct ad7606_state *st = container_of(work_s, struct ad7606_state,
 						poll_work);
 	struct iio_dev *indio_dev = iio_priv_to_dev(st);
-	s64 time_ns;
 	__u8 *buf;
 	int ret;
 
@@ -78,12 +77,7 @@ static void ad7606_poll_bh_to_ring(struct work_struct *work_s)
 			goto done;
 	}
 
-	time_ns = iio_get_time_ns();
-
-	if (indio_dev->scan_timestamp)
-		*((s64 *)(buf + indio_dev->scan_bytes - sizeof(s64))) = time_ns;
-
-	iio_push_to_buffers(indio_dev, buf);
+	iio_push_to_buffers_with_timestamp(indio_dev, buf, iio_get_time_ns());
 done:
 	gpio_set_value(st->pdata->gpio_convst, 0);
 	iio_trigger_notify_done(indio_dev->trig);
-- 
cgit 


From c6f06818d0288ee9e53f39bd96f1814f62d80327 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: staging:iio:ad799x: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/ad799x_ring.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/iio/adc/ad799x_ring.c b/drivers/staging/iio/adc/ad799x_ring.c
index c2ebae12ee19..0ff6c03a483e 100644
--- a/drivers/staging/iio/adc/ad799x_ring.c
+++ b/drivers/staging/iio/adc/ad799x_ring.c
@@ -35,7 +35,6 @@ static irqreturn_t ad799x_trigger_handler(int irq, void *p)
 	struct iio_poll_func *pf = p;
 	struct iio_dev *indio_dev = pf->indio_dev;
 	struct ad799x_state *st = iio_priv(indio_dev);
-	s64 time_ns;
 	int b_sent;
 	u8 cmd;
 
@@ -65,13 +64,8 @@ static irqreturn_t ad799x_trigger_handler(int irq, void *p)
 	if (b_sent < 0)
 		goto out;
 
-	time_ns = iio_get_time_ns();
-
-	if (indio_dev->scan_timestamp)
-		memcpy(st->rx_buf + indio_dev->scan_bytes - sizeof(s64),
-			&time_ns, sizeof(time_ns));
-
-	iio_push_to_buffers(indio_dev, st->rx_buf);
+	iio_push_to_buffers_with_timestamp(indio_dev, st->rx_buf,
+			iio_get_time_ns());
 out:
 	iio_trigger_notify_done(indio_dev->trig);
 
-- 
cgit 


From 4fa10de6568780c4cc069e37dab21857580cf1a0 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 13:59:00 +0100
Subject: staging:iio:mxs-lradc: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/mxs-lradc.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index 7401230d3c33..9da64bf00039 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -625,13 +625,7 @@ static irqreturn_t mxs_lradc_trigger_handler(int irq, void *p)
 		j++;
 	}
 
-	if (iio->scan_timestamp) {
-		s64 *timestamp = (s64 *)((u8 *)lradc->buffer +
-					ALIGN(j, sizeof(s64)));
-		*timestamp = pf->timestamp;
-	}
-
-	iio_push_to_buffers(iio, lradc->buffer);
+	iio_push_to_buffers_with_timestamp(iio, lradc->buffer, pf->timestamp);
 
 	iio_trigger_notify_done(iio->trig);
 
-- 
cgit 


From 09a799d04eb17e19bbc80cb0e350a3ec89552b01 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 14:00:00 +0100
Subject: staging:iio:dummy: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/iio_simple_dummy_buffer.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/iio/iio_simple_dummy_buffer.c b/drivers/staging/iio/iio_simple_dummy_buffer.c
index 3921865fecd6..09c93ac7351a 100644
--- a/drivers/staging/iio/iio_simple_dummy_buffer.c
+++ b/drivers/staging/iio/iio_simple_dummy_buffer.c
@@ -82,11 +82,8 @@ static irqreturn_t iio_simple_dummy_trigger_h(int irq, void *p)
 			len += 2;
 		}
 	}
-	/* Store the timestamp at an 8 byte aligned offset */
-	if (indio_dev->scan_timestamp)
-		*(s64 *)((u8 *)data + ALIGN(len, sizeof(s64)))
-			= iio_get_time_ns();
-	iio_push_to_buffers(indio_dev, data);
+
+	iio_push_to_buffers_with_timestamp(indio_dev, data, iio_get_time_ns());
 
 	kfree(data);
 
-- 
cgit 


From 9d6c39867cc6cdfb6198ec83165b72e0f14ef8b6 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 19 Sep 2013 14:00:00 +0100
Subject: staging:iio:ade7758: Use iio_push_to_buffers_with_timestamp()

Makes the code a bit shorter and less ugly.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/meter/ade7758_ring.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/staging/iio/meter/ade7758_ring.c b/drivers/staging/iio/meter/ade7758_ring.c
index 3d8bc2dbbc9c..4080995c99b6 100644
--- a/drivers/staging/iio/meter/ade7758_ring.c
+++ b/drivers/staging/iio/meter/ade7758_ring.c
@@ -69,11 +69,7 @@ static irqreturn_t ade7758_trigger_handler(int irq, void *p)
 		if (ade7758_spi_read_burst(indio_dev) >= 0)
 			*dat32 = get_unaligned_be32(&st->rx_buf[5]) & 0xFFFFFF;
 
-	/* Guaranteed to be aligned with 8 byte boundary */
-	if (indio_dev->scan_timestamp)
-		dat64[1] = pf->timestamp;
-
-	iio_push_to_buffers(indio_dev, dat64);
+	iio_push_to_buffers_with_timestamp(indio_dev, dat64, pf->timestamp);
 
 	iio_trigger_notify_done(indio_dev->trig);
 
-- 
cgit 


From 38d1c6a9116bd9642ebcb027ac66305590aa8488 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 16 Sep 2013 17:02:00 +0100
Subject: iio: sensors-core: st: Support sensors which don't have a Data Ready
 pin

Not all ST's sensors support data ready, so let's make the declaration
of one conditional.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/common/st_sensors/st_sensors_core.c | 33 ++++++++++++++++---------
 drivers/iio/pressure/st_pressure_core.c         |  3 ++-
 2 files changed, 24 insertions(+), 12 deletions(-)

diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 793136aff390..d21b611d875b 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -198,21 +198,17 @@ int st_sensors_set_axis_enable(struct iio_dev *indio_dev, u8 axis_enable)
 }
 EXPORT_SYMBOL(st_sensors_set_axis_enable);
 
-int st_sensors_init_sensor(struct iio_dev *indio_dev,
-					struct st_sensors_platform_data *pdata)
+static int st_sensors_set_drdy_int_pin(struct iio_dev *indio_dev,
+				       struct st_sensors_platform_data *pdata)
 {
-	int err;
 	struct st_sensor_data *sdata = iio_priv(indio_dev);
 
-	mutex_init(&sdata->tb.buf_lock);
-
 	switch (pdata->drdy_int_pin) {
 	case 1:
 		if (sdata->sensor->drdy_irq.mask_int1 == 0) {
 			dev_err(&indio_dev->dev,
 					"DRDY on INT1 not available.\n");
-			err = -EINVAL;
-			goto init_error;
+			return -EINVAL;
 		}
 		sdata->drdy_int_pin = 1;
 		break;
@@ -220,17 +216,29 @@ int st_sensors_init_sensor(struct iio_dev *indio_dev,
 		if (sdata->sensor->drdy_irq.mask_int2 == 0) {
 			dev_err(&indio_dev->dev,
 					"DRDY on INT2 not available.\n");
-			err = -EINVAL;
-			goto init_error;
+			return -EINVAL;
 		}
 		sdata->drdy_int_pin = 2;
 		break;
 	default:
 		dev_err(&indio_dev->dev, "DRDY on pdata not valid.\n");
-		err = -EINVAL;
-		goto init_error;
+		return -EINVAL;
 	}
 
+	return 0;
+}
+
+int st_sensors_init_sensor(struct iio_dev *indio_dev,
+					struct st_sensors_platform_data *pdata)
+{
+	struct st_sensor_data *sdata = iio_priv(indio_dev);
+	int err = 0;
+
+	mutex_init(&sdata->tb.buf_lock);
+
+	if (pdata)
+		err = st_sensors_set_drdy_int_pin(indio_dev, pdata);
+
 	err = st_sensors_set_enable(indio_dev, false);
 	if (err < 0)
 		goto init_error;
@@ -266,6 +274,9 @@ int st_sensors_set_dataready_irq(struct iio_dev *indio_dev, bool enable)
 	u8 drdy_mask;
 	struct st_sensor_data *sdata = iio_priv(indio_dev);
 
+	if (!sdata->sensor->drdy_irq.addr)
+		return 0;
+
 	/* Enable/Disable the interrupt generator 1. */
 	if (sdata->sensor->drdy_irq.ig1.en_addr > 0) {
 		err = st_sensors_write_data_with_mask(indio_dev,
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 93bff9ba05d6..3abada26c3c2 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -254,7 +254,8 @@ int st_press_common_probe(struct iio_dev *indio_dev,
 
 	pdata->odr = pdata->sensor->odr.odr_avl[0].hz;
 
-	if (!plat_data)
+	/* Some devices don't support a data ready pin. */
+	if (!plat_data && pdata->sensor->drdy_irq.addr)
 		plat_data =
 			(struct st_sensors_platform_data *)&default_press_pdata;
 
-- 
cgit 


From efd9566ff8aef07d89d9ee530b65b38dad3b8eb9 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 16 Sep 2013 17:02:00 +0100
Subject: iio: sensors-core: st: Clean-up error handling in
 st_sensors_init_sensor()

Strip out all those unnecessary gotos and just return the error right away.

Aids to simplicity and reduces code.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/common/st_sensors/st_sensors_core.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index d21b611d875b..32a56fda51fe 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -241,29 +241,28 @@ int st_sensors_init_sensor(struct iio_dev *indio_dev,
 
 	err = st_sensors_set_enable(indio_dev, false);
 	if (err < 0)
-		goto init_error;
+		return err;
 
 	if (sdata->current_fullscale) {
 		err = st_sensors_set_fullscale(indio_dev,
 					       sdata->current_fullscale->num);
 		if (err < 0)
-			goto init_error;
+			return err;
 	} else
 		dev_info(&indio_dev->dev, "Full-scale not possible\n");
 
 	err = st_sensors_set_odr(indio_dev, sdata->odr);
 	if (err < 0)
-		goto init_error;
+		return err;
 
 	/* set BDU */
 	err = st_sensors_write_data_with_mask(indio_dev,
 			sdata->sensor->bdu.addr, sdata->sensor->bdu.mask, true);
 	if (err < 0)
-		goto init_error;
+		return err;
 
 	err = st_sensors_set_axis_enable(indio_dev, ST_SENSORS_ENABLE_ALL_AXIS);
 
-init_error:
 	return err;
 }
 EXPORT_SYMBOL(st_sensors_init_sensor);
-- 
cgit 


From caf5ca122b6b4c2da62949538604f1dabe6f34e8 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 16 Sep 2013 17:02:00 +0100
Subject: iio: sensors-core: st: Clean-up error handling in
 st_sensors_read_axis_data()

Gets rid of those unnecessary gotos.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/common/st_sensors/st_sensors_core.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/iio/common/st_sensors/st_sensors_core.c b/drivers/iio/common/st_sensors/st_sensors_core.c
index 32a56fda51fe..7ba1ef270213 100644
--- a/drivers/iio/common/st_sensors/st_sensors_core.c
+++ b/drivers/iio/common/st_sensors/st_sensors_core.c
@@ -331,10 +331,8 @@ static int st_sensors_read_axis_data(struct iio_dev *indio_dev,
 	unsigned int byte_for_channel = ch->scan_type.storagebits >> 3;
 
 	outdata = kmalloc(byte_for_channel, GFP_KERNEL);
-	if (!outdata) {
-		err = -EINVAL;
-		goto st_sensors_read_axis_data_error;
-	}
+	if (!outdata)
+		return -ENOMEM;
 
 	err = sdata->tf->read_multiple_byte(&sdata->tb, sdata->dev,
 				ch->address, byte_for_channel,
@@ -349,7 +347,7 @@ static int st_sensors_read_axis_data(struct iio_dev *indio_dev,
 
 st_sensors_free_memory:
 	kfree(outdata);
-st_sensors_read_axis_data_error:
+
 	return err;
 }
 
-- 
cgit 


From a6cc5b250c88930c47a0a231107844b69f086428 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 16 Sep 2013 17:02:00 +0100
Subject: iio: pressure-core: st: Clean-up probe() function

This patch contains some pretty basic clean-ups in probe() pertaining to
the simplification of error handling and a couple of readability adaptions.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/pressure/st_pressure_core.c | 28 +++++++++++++++-------------
 1 file changed, 15 insertions(+), 13 deletions(-)

diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 3abada26c3c2..453995310d48 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -232,21 +232,23 @@ static const struct iio_trigger_ops st_press_trigger_ops = {
 int st_press_common_probe(struct iio_dev *indio_dev,
 				struct st_sensors_platform_data *plat_data)
 {
-	int err;
 	struct st_sensor_data *pdata = iio_priv(indio_dev);
+	int irq = pdata->get_irq_data_ready(indio_dev);
+	int err;
 
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &press_info;
 
 	err = st_sensors_check_device_support(indio_dev,
-				ARRAY_SIZE(st_press_sensors), st_press_sensors);
+					      ARRAY_SIZE(st_press_sensors),
+					      st_press_sensors);
 	if (err < 0)
-		goto st_press_common_probe_error;
+		return err;
 
 	pdata->num_data_channels = ST_PRESS_NUMBER_DATA_CHANNELS;
-	pdata->multiread_bit = pdata->sensor->multi_read_bit;
-	indio_dev->channels = pdata->sensor->ch;
-	indio_dev->num_channels = pdata->sensor->num_ch;
+	pdata->multiread_bit     = pdata->sensor->multi_read_bit;
+	indio_dev->channels      = pdata->sensor->ch;
+	indio_dev->num_channels  = pdata->sensor->num_ch;
 
 	if (pdata->sensor->fs.addr != 0)
 		pdata->current_fullscale = (struct st_sensor_fullscale_avl *)
@@ -261,15 +263,15 @@ int st_press_common_probe(struct iio_dev *indio_dev,
 
 	err = st_sensors_init_sensor(indio_dev, plat_data);
 	if (err < 0)
-		goto st_press_common_probe_error;
+		return err;
 
-	if (pdata->get_irq_data_ready(indio_dev) > 0) {
+	if (irq > 0) {
 		err = st_press_allocate_ring(indio_dev);
 		if (err < 0)
-			goto st_press_common_probe_error;
+			return err;
 
 		err = st_sensors_allocate_trigger(indio_dev,
-							ST_PRESS_TRIGGER_OPS);
+						  ST_PRESS_TRIGGER_OPS);
 		if (err < 0)
 			goto st_press_probe_trigger_error;
 	}
@@ -281,12 +283,12 @@ int st_press_common_probe(struct iio_dev *indio_dev,
 	return err;
 
 st_press_device_register_error:
-	if (pdata->get_irq_data_ready(indio_dev) > 0)
+	if (irq > 0)
 		st_sensors_deallocate_trigger(indio_dev);
 st_press_probe_trigger_error:
-	if (pdata->get_irq_data_ready(indio_dev) > 0)
+	if (irq > 0)
 		st_press_deallocate_ring(indio_dev);
-st_press_common_probe_error:
+
 	return err;
 }
 EXPORT_SYMBOL(st_press_common_probe);
-- 
cgit 


From 7885a8ce6800ec37147902b316cd73790865dc1d Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 16 Sep 2013 17:02:00 +0100
Subject: iio: pressure: st: Add support for new LPS001WP pressure sensor

Here we use existing practices to introduce support for another
pressure/temperature sensor, the LPS001WP.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/pressure/st_pressure.h      |  1 +
 drivers/iio/pressure/st_pressure_core.c | 84 +++++++++++++++++++++++++++++++++
 drivers/iio/pressure/st_pressure_i2c.c  |  1 +
 3 files changed, 86 insertions(+)

diff --git a/drivers/iio/pressure/st_pressure.h b/drivers/iio/pressure/st_pressure.h
index b0b630688da6..049c21acf1f0 100644
--- a/drivers/iio/pressure/st_pressure.h
+++ b/drivers/iio/pressure/st_pressure.h
@@ -14,6 +14,7 @@
 #include <linux/types.h>
 #include <linux/iio/common/st_sensors.h>
 
+#define LPS001WP_PRESS_DEV_NAME		"lps001wp"
 #define LPS331AP_PRESS_DEV_NAME		"lps331ap"
 
 /**
diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 453995310d48..e8795420957c 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -64,6 +64,21 @@
 #define ST_PRESS_LPS331AP_OUT_XL_ADDR		0x28
 #define ST_TEMP_LPS331AP_OUT_L_ADDR		0x2b
 
+/* CUSTOM VALUES FOR LPS001WP SENSOR */
+#define ST_PRESS_LPS001WP_WAI_EXP		0xba
+#define ST_PRESS_LPS001WP_ODR_ADDR		0x20
+#define ST_PRESS_LPS001WP_ODR_MASK		0x30
+#define ST_PRESS_LPS001WP_ODR_AVL_1HZ_VAL	0x01
+#define ST_PRESS_LPS001WP_ODR_AVL_7HZ_VAL	0x02
+#define ST_PRESS_LPS001WP_ODR_AVL_13HZ_VAL	0x03
+#define ST_PRESS_LPS001WP_PW_ADDR		0x20
+#define ST_PRESS_LPS001WP_PW_MASK		0x40
+#define ST_PRESS_LPS001WP_BDU_ADDR		0x20
+#define ST_PRESS_LPS001WP_BDU_MASK		0x04
+#define ST_PRESS_LPS001WP_MULTIREAD_BIT		true
+#define ST_PRESS_LPS001WP_OUT_L_ADDR		0x28
+#define ST_TEMP_LPS001WP_OUT_L_ADDR		0x2a
+
 static const struct iio_chan_spec st_press_lps331ap_channels[] = {
 	{
 		.type = IIO_PRESSURE,
@@ -100,6 +115,40 @@ static const struct iio_chan_spec st_press_lps331ap_channels[] = {
 	IIO_CHAN_SOFT_TIMESTAMP(1)
 };
 
+static const struct iio_chan_spec st_press_lps001wp_channels[] = {
+	{
+		.type = IIO_PRESSURE,
+		.channel2 = IIO_NO_MOD,
+		.address = ST_PRESS_LPS001WP_OUT_L_ADDR,
+		.scan_index = ST_SENSORS_SCAN_X,
+		.scan_type = {
+			.sign = 'u',
+			.realbits = 16,
+			.storagebits = 16,
+			.endianness = IIO_LE,
+		},
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+		.modified = 0,
+	},
+	{
+		.type = IIO_TEMP,
+		.channel2 = IIO_NO_MOD,
+		.address = ST_TEMP_LPS001WP_OUT_L_ADDR,
+		.scan_index = -1,
+		.scan_type = {
+			.sign = 'u',
+			.realbits = 16,
+			.storagebits = 16,
+			.endianness = IIO_LE,
+		},
+		.info_mask_separate =
+			BIT(IIO_CHAN_INFO_RAW) |
+			BIT(IIO_CHAN_INFO_OFFSET),
+		.modified = 0,
+	},
+	IIO_CHAN_SOFT_TIMESTAMP(1)
+};
+
 static const struct st_sensors st_press_sensors[] = {
 	{
 		.wai = ST_PRESS_LPS331AP_WAI_EXP,
@@ -148,6 +197,41 @@ static const struct st_sensors st_press_sensors[] = {
 		.multi_read_bit = ST_PRESS_LPS331AP_MULTIREAD_BIT,
 		.bootime = 2,
 	},
+	{
+		.wai = ST_PRESS_LPS001WP_WAI_EXP,
+		.sensors_supported = {
+			[0] = LPS001WP_PRESS_DEV_NAME,
+		},
+		.ch = (struct iio_chan_spec *)st_press_lps001wp_channels,
+		.num_ch = ARRAY_SIZE(st_press_lps001wp_channels),
+		.odr = {
+			.addr = ST_PRESS_LPS001WP_ODR_ADDR,
+			.mask = ST_PRESS_LPS001WP_ODR_MASK,
+			.odr_avl = {
+				{ 1, ST_PRESS_LPS001WP_ODR_AVL_1HZ_VAL, },
+				{ 7, ST_PRESS_LPS001WP_ODR_AVL_7HZ_VAL, },
+				{ 13, ST_PRESS_LPS001WP_ODR_AVL_13HZ_VAL, },
+			},
+		},
+		.pw = {
+			.addr = ST_PRESS_LPS001WP_PW_ADDR,
+			.mask = ST_PRESS_LPS001WP_PW_MASK,
+			.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
+			.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
+		},
+		.fs = {
+			.addr = 0,
+		},
+		.bdu = {
+			.addr = ST_PRESS_LPS001WP_BDU_ADDR,
+			.mask = ST_PRESS_LPS001WP_BDU_MASK,
+		},
+		.drdy_irq = {
+			.addr = 0,
+		},
+		.multi_read_bit = ST_PRESS_LPS001WP_MULTIREAD_BIT,
+		.bootime = 2,
+	},
 };
 
 static int st_press_read_raw(struct iio_dev *indio_dev,
diff --git a/drivers/iio/pressure/st_pressure_i2c.c b/drivers/iio/pressure/st_pressure_i2c.c
index 08aac5e6251d..51eab7fcb194 100644
--- a/drivers/iio/pressure/st_pressure_i2c.c
+++ b/drivers/iio/pressure/st_pressure_i2c.c
@@ -49,6 +49,7 @@ static int st_press_i2c_remove(struct i2c_client *client)
 }
 
 static const struct i2c_device_id st_press_id_table[] = {
+	{ LPS001WP_PRESS_DEV_NAME },
 	{ LPS331AP_PRESS_DEV_NAME },
 	{},
 };
-- 
cgit 


From cf4dd430c4cfeb2b41e2de43f3463d0a3dba2463 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 16 Sep 2013 17:02:00 +0100
Subject: iio: accel-core: st: Clean up error handling in probe()

Reduce the amount of those unnecessary goto calls, as in most cases
we can simply return immediately. We also only call for the IRQ number
once and use that value throughout.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/accel/st_accel_core.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index 1458343f6f3f..97172ddb8cf9 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -452,8 +452,9 @@ static const struct iio_trigger_ops st_accel_trigger_ops = {
 int st_accel_common_probe(struct iio_dev *indio_dev,
 				struct st_sensors_platform_data *plat_data)
 {
-	int err;
 	struct st_sensor_data *adata = iio_priv(indio_dev);
+	int irq = adata->get_irq_data_ready(indio_dev);
+	int err;
 
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &accel_info;
@@ -461,7 +462,7 @@ int st_accel_common_probe(struct iio_dev *indio_dev,
 	err = st_sensors_check_device_support(indio_dev,
 				ARRAY_SIZE(st_accel_sensors), st_accel_sensors);
 	if (err < 0)
-		goto st_accel_common_probe_error;
+		return err;
 
 	adata->num_data_channels = ST_ACCEL_NUMBER_DATA_CHANNELS;
 	adata->multiread_bit = adata->sensor->multi_read_bit;
@@ -478,12 +479,12 @@ int st_accel_common_probe(struct iio_dev *indio_dev,
 
 	err = st_sensors_init_sensor(indio_dev, plat_data);
 	if (err < 0)
-		goto st_accel_common_probe_error;
+		return err;
 
-	if (adata->get_irq_data_ready(indio_dev) > 0) {
+	if (irq > 0) {
 		err = st_accel_allocate_ring(indio_dev);
 		if (err < 0)
-			goto st_accel_common_probe_error;
+			return err;
 
 		err = st_sensors_allocate_trigger(indio_dev,
 						 ST_ACCEL_TRIGGER_OPS);
@@ -495,15 +496,15 @@ int st_accel_common_probe(struct iio_dev *indio_dev,
 	if (err)
 		goto st_accel_device_register_error;
 
-	return err;
+	return 0;
 
 st_accel_device_register_error:
-	if (adata->get_irq_data_ready(indio_dev) > 0)
+	if (irq > 0)
 		st_sensors_deallocate_trigger(indio_dev);
 st_accel_probe_trigger_error:
-	if (adata->get_irq_data_ready(indio_dev) > 0)
+	if (irq > 0)
 		st_accel_deallocate_ring(indio_dev);
-st_accel_common_probe_error:
+
 	return err;
 }
 EXPORT_SYMBOL(st_accel_common_probe);
-- 
cgit 


From f01a140ad30cb99eb3a15a6c43fde80207ce2681 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 16 Sep 2013 17:02:00 +0100
Subject: iio: gyro-core: st: Clean up error handling in probe()

Reduce the amount of those unnecessary goto calls, as in most cases
we can simply return immediately. We also only call for the IRQ number
once and use that value throughout.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/gyro/st_gyro_core.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c
index e13c2b0bf3d1..9f80817182cf 100644
--- a/drivers/iio/gyro/st_gyro_core.c
+++ b/drivers/iio/gyro/st_gyro_core.c
@@ -305,8 +305,9 @@ static const struct iio_trigger_ops st_gyro_trigger_ops = {
 int st_gyro_common_probe(struct iio_dev *indio_dev,
 					struct st_sensors_platform_data *pdata)
 {
-	int err;
 	struct st_sensor_data *gdata = iio_priv(indio_dev);
+	int irq = gdata->get_irq_data_ready(indio_dev);
+	int err;
 
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &gyro_info;
@@ -314,7 +315,7 @@ int st_gyro_common_probe(struct iio_dev *indio_dev,
 	err = st_sensors_check_device_support(indio_dev,
 				ARRAY_SIZE(st_gyro_sensors), st_gyro_sensors);
 	if (err < 0)
-		goto st_gyro_common_probe_error;
+		return err;
 
 	gdata->num_data_channels = ST_GYRO_NUMBER_DATA_CHANNELS;
 	gdata->multiread_bit = gdata->sensor->multi_read_bit;
@@ -327,12 +328,12 @@ int st_gyro_common_probe(struct iio_dev *indio_dev,
 
 	err = st_sensors_init_sensor(indio_dev, pdata);
 	if (err < 0)
-		goto st_gyro_common_probe_error;
+		return err;
 
-	if (gdata->get_irq_data_ready(indio_dev) > 0) {
+	if (irq > 0) {
 		err = st_gyro_allocate_ring(indio_dev);
 		if (err < 0)
-			goto st_gyro_common_probe_error;
+			return err;
 
 		err = st_sensors_allocate_trigger(indio_dev,
 						  ST_GYRO_TRIGGER_OPS);
@@ -344,15 +345,15 @@ int st_gyro_common_probe(struct iio_dev *indio_dev,
 	if (err)
 		goto st_gyro_device_register_error;
 
-	return err;
+	return 0;
 
 st_gyro_device_register_error:
-	if (gdata->get_irq_data_ready(indio_dev) > 0)
+	if (irq > 0)
 		st_sensors_deallocate_trigger(indio_dev);
 st_gyro_probe_trigger_error:
-	if (gdata->get_irq_data_ready(indio_dev) > 0)
+	if (irq > 0)
 		st_gyro_deallocate_ring(indio_dev);
-st_gyro_common_probe_error:
+
 	return err;
 }
 EXPORT_SYMBOL(st_gyro_common_probe);
-- 
cgit 


From 267a29b957cb28725aef7b9b2ea4c219caefb3b7 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 16 Sep 2013 17:02:00 +0100
Subject: iio: magn-core: st: Clean up error handling in probe()

Reduce the amount of those unnecessary goto calls, as in most cases
we can simply return immediately. We also only call for the IRQ number
once and use that value throughout.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/magnetometer/st_magn_core.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c
index e8d2849cc81d..729c71af9400 100644
--- a/drivers/iio/magnetometer/st_magn_core.c
+++ b/drivers/iio/magnetometer/st_magn_core.c
@@ -348,8 +348,9 @@ static const struct iio_info magn_info = {
 int st_magn_common_probe(struct iio_dev *indio_dev,
 					struct st_sensors_platform_data *pdata)
 {
-	int err;
 	struct st_sensor_data *mdata = iio_priv(indio_dev);
+	int irq = mdata->get_irq_data_ready(indio_dev);
+	int err;
 
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &magn_info;
@@ -357,7 +358,7 @@ int st_magn_common_probe(struct iio_dev *indio_dev,
 	err = st_sensors_check_device_support(indio_dev,
 				ARRAY_SIZE(st_magn_sensors), st_magn_sensors);
 	if (err < 0)
-		goto st_magn_common_probe_error;
+		return err;
 
 	mdata->num_data_channels = ST_MAGN_NUMBER_DATA_CHANNELS;
 	mdata->multiread_bit = mdata->sensor->multi_read_bit;
@@ -370,12 +371,12 @@ int st_magn_common_probe(struct iio_dev *indio_dev,
 
 	err = st_sensors_init_sensor(indio_dev, pdata);
 	if (err < 0)
-		goto st_magn_common_probe_error;
+		return err;
 
-	if (mdata->get_irq_data_ready(indio_dev) > 0) {
+	if (irq > 0) {
 		err = st_magn_allocate_ring(indio_dev);
 		if (err < 0)
-			goto st_magn_common_probe_error;
+			return err;
 		err = st_sensors_allocate_trigger(indio_dev, NULL);
 		if (err < 0)
 			goto st_magn_probe_trigger_error;
@@ -385,15 +386,15 @@ int st_magn_common_probe(struct iio_dev *indio_dev,
 	if (err)
 		goto st_magn_device_register_error;
 
-	return err;
+	return 0;
 
 st_magn_device_register_error:
-	if (mdata->get_irq_data_ready(indio_dev) > 0)
+	if (irq > 0)
 		st_sensors_deallocate_trigger(indio_dev);
 st_magn_probe_trigger_error:
-	if (mdata->get_irq_data_ready(indio_dev) > 0)
+	if (irq > 0)
 		st_magn_deallocate_ring(indio_dev);
-st_magn_common_probe_error:
+
 	return err;
 }
 EXPORT_SYMBOL(st_magn_common_probe);
-- 
cgit 


From e21e254e49831075f7fb13d9dbe33defb00a3d3d Mon Sep 17 00:00:00 2001
From: Denis CIOCCA <denis.ciocca@st.com>
Date: Wed, 18 Sep 2013 10:00:00 +0100
Subject: iio:accel: Register buffer also without specific trigger

This patch fix buffer registration that allows to use generic IIO trigger.

Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/accel/st_accel_core.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/iio/accel/st_accel_core.c b/drivers/iio/accel/st_accel_core.c
index 97172ddb8cf9..38caedc76b98 100644
--- a/drivers/iio/accel/st_accel_core.c
+++ b/drivers/iio/accel/st_accel_core.c
@@ -481,11 +481,11 @@ int st_accel_common_probe(struct iio_dev *indio_dev,
 	if (err < 0)
 		return err;
 
-	if (irq > 0) {
-		err = st_accel_allocate_ring(indio_dev);
-		if (err < 0)
-			return err;
+	err = st_accel_allocate_ring(indio_dev);
+	if (err < 0)
+		return err;
 
+	if (irq > 0) {
 		err = st_sensors_allocate_trigger(indio_dev,
 						 ST_ACCEL_TRIGGER_OPS);
 		if (err < 0)
@@ -502,8 +502,7 @@ st_accel_device_register_error:
 	if (irq > 0)
 		st_sensors_deallocate_trigger(indio_dev);
 st_accel_probe_trigger_error:
-	if (irq > 0)
-		st_accel_deallocate_ring(indio_dev);
+	st_accel_deallocate_ring(indio_dev);
 
 	return err;
 }
@@ -514,10 +513,10 @@ void st_accel_common_remove(struct iio_dev *indio_dev)
 	struct st_sensor_data *adata = iio_priv(indio_dev);
 
 	iio_device_unregister(indio_dev);
-	if (adata->get_irq_data_ready(indio_dev) > 0) {
+	if (adata->get_irq_data_ready(indio_dev) > 0)
 		st_sensors_deallocate_trigger(indio_dev);
-		st_accel_deallocate_ring(indio_dev);
-	}
+
+	st_accel_deallocate_ring(indio_dev);
 }
 EXPORT_SYMBOL(st_accel_common_remove);
 
-- 
cgit 


From fb4ea1f828d515b766c081647935bad5a38e0586 Mon Sep 17 00:00:00 2001
From: Denis CIOCCA <denis.ciocca@st.com>
Date: Wed, 18 Sep 2013 10:00:00 +0100
Subject: iio:gyro: Register buffer also without specific trigger

This patch fix buffer registration that allows to use generic IIO trigger.

Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/gyro/st_gyro_core.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/iio/gyro/st_gyro_core.c b/drivers/iio/gyro/st_gyro_core.c
index 9f80817182cf..d53d91adfb55 100644
--- a/drivers/iio/gyro/st_gyro_core.c
+++ b/drivers/iio/gyro/st_gyro_core.c
@@ -330,11 +330,11 @@ int st_gyro_common_probe(struct iio_dev *indio_dev,
 	if (err < 0)
 		return err;
 
-	if (irq > 0) {
-		err = st_gyro_allocate_ring(indio_dev);
-		if (err < 0)
-			return err;
+	err = st_gyro_allocate_ring(indio_dev);
+	if (err < 0)
+		return err;
 
+	if (irq > 0) {
 		err = st_sensors_allocate_trigger(indio_dev,
 						  ST_GYRO_TRIGGER_OPS);
 		if (err < 0)
@@ -351,8 +351,7 @@ st_gyro_device_register_error:
 	if (irq > 0)
 		st_sensors_deallocate_trigger(indio_dev);
 st_gyro_probe_trigger_error:
-	if (irq > 0)
-		st_gyro_deallocate_ring(indio_dev);
+	st_gyro_deallocate_ring(indio_dev);
 
 	return err;
 }
@@ -363,10 +362,10 @@ void st_gyro_common_remove(struct iio_dev *indio_dev)
 	struct st_sensor_data *gdata = iio_priv(indio_dev);
 
 	iio_device_unregister(indio_dev);
-	if (gdata->get_irq_data_ready(indio_dev) > 0) {
+	if (gdata->get_irq_data_ready(indio_dev) > 0)
 		st_sensors_deallocate_trigger(indio_dev);
-		st_gyro_deallocate_ring(indio_dev);
-	}
+
+	st_gyro_deallocate_ring(indio_dev);
 }
 EXPORT_SYMBOL(st_gyro_common_remove);
 
-- 
cgit 


From f60b12b02ec8d9057863423c6d7b27169638e1d9 Mon Sep 17 00:00:00 2001
From: Denis CIOCCA <denis.ciocca@st.com>
Date: Wed, 18 Sep 2013 10:00:00 +0100
Subject: iio:magn: Register buffer also without specific trigger

This patch fix buffer registration that allows to use generic IIO trigger.

Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/magnetometer/st_magn_core.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/iio/magnetometer/st_magn_core.c b/drivers/iio/magnetometer/st_magn_core.c
index 729c71af9400..82461eff995a 100644
--- a/drivers/iio/magnetometer/st_magn_core.c
+++ b/drivers/iio/magnetometer/st_magn_core.c
@@ -373,10 +373,11 @@ int st_magn_common_probe(struct iio_dev *indio_dev,
 	if (err < 0)
 		return err;
 
+	err = st_magn_allocate_ring(indio_dev);
+	if (err < 0)
+		return err;
+
 	if (irq > 0) {
-		err = st_magn_allocate_ring(indio_dev);
-		if (err < 0)
-			return err;
 		err = st_sensors_allocate_trigger(indio_dev, NULL);
 		if (err < 0)
 			goto st_magn_probe_trigger_error;
@@ -392,8 +393,7 @@ st_magn_device_register_error:
 	if (irq > 0)
 		st_sensors_deallocate_trigger(indio_dev);
 st_magn_probe_trigger_error:
-	if (irq > 0)
-		st_magn_deallocate_ring(indio_dev);
+	st_magn_deallocate_ring(indio_dev);
 
 	return err;
 }
@@ -404,10 +404,10 @@ void st_magn_common_remove(struct iio_dev *indio_dev)
 	struct st_sensor_data *mdata = iio_priv(indio_dev);
 
 	iio_device_unregister(indio_dev);
-	if (mdata->get_irq_data_ready(indio_dev) > 0) {
+	if (mdata->get_irq_data_ready(indio_dev) > 0)
 		st_sensors_deallocate_trigger(indio_dev);
-		st_magn_deallocate_ring(indio_dev);
-	}
+
+	st_magn_deallocate_ring(indio_dev);
 }
 EXPORT_SYMBOL(st_magn_common_remove);
 
-- 
cgit 


From 7a137c9c40784e7be0a44182ed6ebc5ea22d5ac1 Mon Sep 17 00:00:00 2001
From: Denis CIOCCA <denis.ciocca@st.com>
Date: Wed, 18 Sep 2013 10:00:00 +0100
Subject: iio:press: Register buffer also without specific trigger

This patch fix buffer registration that allows to use generic IIO trigger.

Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/pressure/st_pressure_core.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index e8795420957c..2da411b6925b 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -349,11 +349,11 @@ int st_press_common_probe(struct iio_dev *indio_dev,
 	if (err < 0)
 		return err;
 
-	if (irq > 0) {
-		err = st_press_allocate_ring(indio_dev);
-		if (err < 0)
-			return err;
+	err = st_press_allocate_ring(indio_dev);
+	if (err < 0)
+		return err;
 
+	if (irq > 0) {
 		err = st_sensors_allocate_trigger(indio_dev,
 						  ST_PRESS_TRIGGER_OPS);
 		if (err < 0)
@@ -370,8 +370,7 @@ st_press_device_register_error:
 	if (irq > 0)
 		st_sensors_deallocate_trigger(indio_dev);
 st_press_probe_trigger_error:
-	if (irq > 0)
-		st_press_deallocate_ring(indio_dev);
+	st_press_deallocate_ring(indio_dev);
 
 	return err;
 }
@@ -382,10 +381,10 @@ void st_press_common_remove(struct iio_dev *indio_dev)
 	struct st_sensor_data *pdata = iio_priv(indio_dev);
 
 	iio_device_unregister(indio_dev);
-	if (pdata->get_irq_data_ready(indio_dev) > 0) {
+	if (pdata->get_irq_data_ready(indio_dev) > 0)
 		st_sensors_deallocate_trigger(indio_dev);
-		st_press_deallocate_ring(indio_dev);
-	}
+
+	st_press_deallocate_ring(indio_dev);
 }
 EXPORT_SYMBOL(st_press_common_remove);
 
-- 
cgit 


From 718a39eb587e038f7ded076afcfd8d709879139f Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Mon, 10 Jun 2013 12:22:30 +0100
Subject: DMA-API: net: intel/e1000e: fix 32-bit DMA mask handling

The fallback to 32-bit DMA mask is rather odd:
	err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
	if (!err) {
		err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
		if (!err)
			pci_using_dac = 1;
	} else {
		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
		if (err) {
			err = dma_set_coherent_mask(&pdev->dev,
						    DMA_BIT_MASK(32));
			if (err) {
				dev_err(&pdev->dev,
					"No usable DMA configuration, aborting\n");
				goto err_dma;
			}
		}
	}
This means we only set the coherent DMA mask in the fallback path if
the DMA mask set failed, which is silly.  This fixes it to set the
coherent DMA mask only if dma_set_mask() succeeded, and to error out
if either fails.

Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/net/ethernet/intel/e1000e/netdev.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index e87e9b01f404..519e293a8f38 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -6553,21 +6553,15 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		return err;
 
 	pci_using_dac = 0;
-	err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
 	if (!err) {
-		err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
-		if (!err)
-			pci_using_dac = 1;
+		pci_using_dac = 1;
 	} else {
-		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
+		err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 		if (err) {
-			err = dma_set_coherent_mask(&pdev->dev,
-						    DMA_BIT_MASK(32));
-			if (err) {
-				dev_err(&pdev->dev,
-					"No usable DMA configuration, aborting\n");
-				goto err_dma;
-			}
+			dev_err(&pdev->dev,
+				"No usable DMA configuration, aborting\n");
+			goto err_dma;
 		}
 	}
 
-- 
cgit 


From dc4ff9bb7534ebd153f8441ec0e9190964ad8944 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Mon, 10 Jun 2013 12:24:50 +0100
Subject: DMA-API: net: intel/igb: fix 32-bit DMA mask handling

The fallback to 32-bit DMA mask is rather odd:
	err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
	if (!err) {
		err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
		if (!err)
			pci_using_dac = 1;
	} else {
		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
		if (err) {
			err = dma_set_coherent_mask(&pdev->dev,
						    DMA_BIT_MASK(32));
			if (err) {
				dev_err(&pdev->dev,
					"No usable DMA configuration, aborting\n");
				goto err_dma;
			}
		}
	}
This means we only set the coherent DMA mask in the fallback path if
the DMA mask set failed, which is silly.  This fixes it to set the
coherent DMA mask only if dma_set_mask() succeeded, and to error out
if either fails.

Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/net/ethernet/intel/igb/igb_main.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 8cf44f2a8ccd..7579383c584d 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -2034,21 +2034,15 @@ static int igb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		return err;
 
 	pci_using_dac = 0;
-	err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
 	if (!err) {
-		err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
-		if (!err)
-			pci_using_dac = 1;
+		pci_using_dac = 1;
 	} else {
-		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
+		err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 		if (err) {
-			err = dma_set_coherent_mask(&pdev->dev,
-						    DMA_BIT_MASK(32));
-			if (err) {
-				dev_err(&pdev->dev,
-					"No usable DMA configuration, aborting\n");
-				goto err_dma;
-			}
+			dev_err(&pdev->dev,
+				"No usable DMA configuration, aborting\n");
+			goto err_dma;
 		}
 	}
 
-- 
cgit 


From c21b8ebc2f1613fd0a9d5aa0d0d1083aee8ca306 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Mon, 10 Jun 2013 12:26:32 +0100
Subject: DMA-API: net: intel/igbvf: fix 32-bit DMA mask handling

The fallback to 32-bit DMA mask is rather odd:
	err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
	if (!err) {
		err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
		if (!err)
			pci_using_dac = 1;
	} else {
		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
		if (err) {
			err = dma_set_coherent_mask(&pdev->dev,
						    DMA_BIT_MASK(32));
			if (err) {
				dev_err(&pdev->dev, "No usable DMA "
					"configuration, aborting\n");
				goto err_dma;
			}
		}
	}
This means we only set the coherent DMA mask in the fallback path if
the DMA mask set failed, which is silly.  This fixes it to set the
coherent DMA mask only if dma_set_mask() succeeded, and to error out
if either fails.

Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/net/ethernet/intel/igbvf/netdev.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c
index 93eb7ee06d3e..4e6b02fbe652 100644
--- a/drivers/net/ethernet/intel/igbvf/netdev.c
+++ b/drivers/net/ethernet/intel/igbvf/netdev.c
@@ -2638,21 +2638,15 @@ static int igbvf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		return err;
 
 	pci_using_dac = 0;
-	err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
 	if (!err) {
-		err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
-		if (!err)
-			pci_using_dac = 1;
+		pci_using_dac = 1;
 	} else {
-		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
+		err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 		if (err) {
-			err = dma_set_coherent_mask(&pdev->dev,
-						    DMA_BIT_MASK(32));
-			if (err) {
-				dev_err(&pdev->dev, "No usable DMA "
-				        "configuration, aborting\n");
-				goto err_dma;
-			}
+			dev_err(&pdev->dev, "No usable DMA "
+			        "configuration, aborting\n");
+			goto err_dma;
 		}
 	}
 
-- 
cgit 


From 590990362b939bc6edf8e05bd0f3146b33a42870 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Mon, 10 Jun 2013 12:46:11 +0100
Subject: DMA-API: net: intel/ixgb: fix 32-bit DMA mask handling

The fallback to 32-bit DMA mask is rather odd:
	err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
	if (!err) {
		err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
		if (!err)
			pci_using_dac = 1;
	} else {
		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
		if (err) {
			err = dma_set_coherent_mask(&pdev->dev,
						    DMA_BIT_MASK(32));
			if (err) {
				pr_err("No usable DMA configuration, aborting\n");
				goto err_dma_mask;
			}
		}
	}
This means we only set the coherent DMA mask in the fallback path if
the DMA mask set failed, which is silly.  This fixes it to set the
coherent DMA mask only if dma_set_mask() succeeded, and to error out
if either fails.

Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/net/ethernet/intel/ixgb/ixgb_main.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_main.c b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
index 9f6b236828e6..57e390cbe6d0 100644
--- a/drivers/net/ethernet/intel/ixgb/ixgb_main.c
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_main.c
@@ -408,20 +408,14 @@ ixgb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		return err;
 
 	pci_using_dac = 0;
-	err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
 	if (!err) {
-		err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
-		if (!err)
-			pci_using_dac = 1;
+		pci_using_dac = 1;
 	} else {
-		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
+		err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 		if (err) {
-			err = dma_set_coherent_mask(&pdev->dev,
-						    DMA_BIT_MASK(32));
-			if (err) {
-				pr_err("No usable DMA configuration, aborting\n");
-				goto err_dma_mask;
-			}
+			pr_err("No usable DMA configuration, aborting\n");
+			goto err_dma_mask;
 		}
 	}
 
-- 
cgit 


From f5f2eda8049644a27af5fdf59c3766589358e435 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Mon, 10 Jun 2013 12:47:42 +0100
Subject: DMA-API: net: intel/ixgbe: fix 32-bit DMA mask handling

The fallback to 32-bit DMA mask is rather odd:
	if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) &&
	    !dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) {
		pci_using_dac = 1;
	} else {
		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
		if (err) {
			err = dma_set_coherent_mask(&pdev->dev,
						    DMA_BIT_MASK(32));
			if (err) {
				dev_err(&pdev->dev,
					"No usable DMA configuration, aborting\n");
				goto err_dma;
			}
		}
		pci_using_dac = 0;
	}
This means we only set the coherent DMA mask in the fallback path if
the DMA mask set failed, which is silly.  This fixes it to set the
coherent DMA mask only if dma_set_mask() succeeded, and to error out
if either fails.

Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 7aba452833e5..b1dc8444219a 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -7475,19 +7475,14 @@ static int ixgbe_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (err)
 		return err;
 
-	if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) &&
-	    !dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) {
+	if (!dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) {
 		pci_using_dac = 1;
 	} else {
-		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
+		err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 		if (err) {
-			err = dma_set_coherent_mask(&pdev->dev,
-						    DMA_BIT_MASK(32));
-			if (err) {
-				dev_err(&pdev->dev,
-					"No usable DMA configuration, aborting\n");
-				goto err_dma;
-			}
+			dev_err(&pdev->dev,
+				"No usable DMA configuration, aborting\n");
+			goto err_dma;
 		}
 		pci_using_dac = 0;
 	}
-- 
cgit 


From 53567aa4e00399aa59339bba81b285a5b95f425c Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Mon, 10 Jun 2013 12:49:38 +0100
Subject: DMA-API: net: intel/ixgbevf: fix 32-bit DMA mask handling

The fallback to 32-bit DMA mask is rather odd:
	if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) &&
	    !dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) {
		pci_using_dac = 1;
	} else {
		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
		if (err) {
			err = dma_set_coherent_mask(&pdev->dev,
						    DMA_BIT_MASK(32));
			if (err) {
				dev_err(&pdev->dev, "No usable DMA "
					"configuration, aborting\n");
				goto err_dma;
			}
		}
		pci_using_dac = 0;
	}
This means we only set the coherent DMA mask in the fallback path if
the DMA mask set failed, which is silly.  This fixes it to set the
coherent DMA mask only if dma_set_mask() succeeded, and to error out
if either fails.

Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 59a62bbfb371..e34c2daac6a0 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -3326,19 +3326,14 @@ static int ixgbevf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (err)
 		return err;
 
-	if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)) &&
-	    !dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) {
+	if (!dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) {
 		pci_using_dac = 1;
 	} else {
-		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
+		err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 		if (err) {
-			err = dma_set_coherent_mask(&pdev->dev,
-						    DMA_BIT_MASK(32));
-			if (err) {
-				dev_err(&pdev->dev, "No usable DMA "
-					"configuration, aborting\n");
-				goto err_dma;
-			}
+			dev_err(&pdev->dev, "No usable DMA "
+				"configuration, aborting\n");
+			goto err_dma;
 		}
 		pci_using_dac = 0;
 	}
-- 
cgit 


From 4011f9f76683b7f30965c960ea45500acc200880 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Wed, 26 Jun 2013 19:04:29 +0100
Subject: DMA-API: net: broadcom/b44: replace
 dma_set_mask()+dma_set_coherent_mask() with new helper

Replace the following sequence:

	dma_set_mask(dev, mask);
	dma_set_coherent_mask(dev, mask);

with a call to the new helper dma_set_mask_and_coherent().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/net/ethernet/broadcom/b44.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/b44.c b/drivers/net/ethernet/broadcom/b44.c
index 9b017d9c58e9..b4d20182549b 100644
--- a/drivers/net/ethernet/broadcom/b44.c
+++ b/drivers/net/ethernet/broadcom/b44.c
@@ -2183,8 +2183,7 @@ static int b44_init_one(struct ssb_device *sdev,
 		goto err_out_free_dev;
 	}
 
-	if (dma_set_mask(sdev->dma_dev, DMA_BIT_MASK(30)) ||
-	    dma_set_coherent_mask(sdev->dma_dev, DMA_BIT_MASK(30))) {
+	if (dma_set_mask_and_coherent(sdev->dma_dev, DMA_BIT_MASK(30))) {
 		dev_err(sdev->dev,
 			"Required 30BIT DMA mask unsupported by the system\n");
 		goto err_out_powerdown;
-- 
cgit 


From 1bfa2c40ced07bae83839840be5143a7b09af714 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Wed, 26 Jun 2013 20:02:30 +0100
Subject: DMA-API: net: broadcom/bnx2x: replace
 dma_set_mask()+dma_set_coherent_mask() with new helper

Replace the following sequence:

	dma_set_mask(dev, mask);
	dma_set_coherent_mask(dev, mask);

with a call to the new helper dma_set_mask_and_coherent().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 2f8dbbbd7a86..e6c3e663f6c0 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -12072,13 +12072,9 @@ static int bnx2x_set_coherency_mask(struct bnx2x *bp)
 {
 	struct device *dev = &bp->pdev->dev;
 
-	if (dma_set_mask(dev, DMA_BIT_MASK(64)) == 0) {
+	if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)) == 0) {
 		bp->flags |= USING_DAC_FLAG;
-		if (dma_set_coherent_mask(dev, DMA_BIT_MASK(64)) != 0) {
-			dev_err(dev, "dma_set_coherent_mask failed, aborting\n");
-			return -EIO;
-		}
-	} else if (dma_set_mask(dev, DMA_BIT_MASK(32)) != 0) {
+	} else if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32)) != 0) {
 		dev_err(dev, "System does not support DMA, aborting\n");
 		return -EIO;
 	}
-- 
cgit 


From 4c15c243189d01509943e70896d575a2a69c3269 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Wed, 26 Jun 2013 23:49:11 +0100
Subject: DMA-API: net: emulex/benet: replace
 dma_set_mask()+dma_set_coherent_mask() with new helper

Replace the following sequence:

	dma_set_mask(dev, mask);
	dma_set_coherent_mask(dev, mask);

with a call to the new helper dma_set_mask_and_coherent().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/net/ethernet/emulex/benet/be_main.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 3224d28cdad4..208415107418 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -4335,19 +4335,11 @@ static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id)
 	adapter->netdev = netdev;
 	SET_NETDEV_DEV(netdev, &pdev->dev);
 
-	status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
+	status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
 	if (!status) {
-		status = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
-		if (status < 0) {
-			dev_err(&pdev->dev, "dma_set_coherent_mask failed\n");
-			goto free_netdev;
-		}
 		netdev->features |= NETIF_F_HIGHDMA;
 	} else {
-		status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
-		if (!status)
-			status = dma_set_coherent_mask(&pdev->dev,
-						       DMA_BIT_MASK(32));
+		status = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 		if (status) {
 			dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
 			goto free_netdev;
-- 
cgit 


From 9931a26ea7fa25b02547c2a15f4aa80f538197e2 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Wed, 26 Jun 2013 23:49:11 +0100
Subject: DMA-API: net: intel/e1000: replace
 dma_set_mask()+dma_set_coherent_mask() with new helper

Replace the following sequence:

	dma_set_mask(dev, mask);
	dma_set_coherent_mask(dev, mask);

with a call to the new helper dma_set_mask_and_coherent().

Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/net/ethernet/intel/e1000/e1000_main.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
index 59ad007dd5aa..34672f87726c 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
@@ -1018,19 +1018,14 @@ static int e1000_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	 */
 	pci_using_dac = 0;
 	if ((hw->bus_type == e1000_bus_type_pcix) &&
-	    !dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
-		/* according to DMA-API-HOWTO, coherent calls will always
-		 * succeed if the set call did
-		 */
-		dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
+	    !dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) {
 		pci_using_dac = 1;
 	} else {
-		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
+		err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 		if (err) {
 			pr_err("No usable DMA config, aborting\n");
 			goto err_dma;
 		}
-		dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
 	}
 
 	netdev->netdev_ops = &e1000_netdev_ops;
-- 
cgit 


From 9663dedafa302bb7fd511f9ae75d9ce33865477e Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Wed, 26 Jun 2013 23:49:11 +0100
Subject: DMA-API: net: sfc/efx.c: replace
 dma_set_mask()+dma_set_coherent_mask() with new helper

Replace the following sequence:

	dma_set_mask(dev, mask);
	dma_set_coherent_mask(dev, mask);

with a call to the new helper dma_set_mask_and_coherent().

Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/net/ethernet/sfc/efx.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/sfc/efx.c b/drivers/net/ethernet/sfc/efx.c
index 07c9bc4c61bc..2e27837ce6a2 100644
--- a/drivers/net/ethernet/sfc/efx.c
+++ b/drivers/net/ethernet/sfc/efx.c
@@ -1121,7 +1121,7 @@ static int efx_init_io(struct efx_nic *efx)
 	 */
 	while (dma_mask > 0x7fffffffUL) {
 		if (dma_supported(&pci_dev->dev, dma_mask)) {
-			rc = dma_set_mask(&pci_dev->dev, dma_mask);
+			rc = dma_set_mask_and_coherent(&pci_dev->dev, dma_mask);
 			if (rc == 0)
 				break;
 		}
@@ -1134,16 +1134,6 @@ static int efx_init_io(struct efx_nic *efx)
 	}
 	netif_dbg(efx, probe, efx->net_dev,
 		  "using DMA mask %llx\n", (unsigned long long) dma_mask);
-	rc = dma_set_coherent_mask(&pci_dev->dev, dma_mask);
-	if (rc) {
-		/* dma_set_coherent_mask() is not *allowed* to
-		 * fail with a mask that dma_set_mask() accepted,
-		 * but just in case...
-		 */
-		netif_err(efx, probe, efx->net_dev,
-			  "failed to set consistent DMA mask\n");
-		goto fail2;
-	}
 
 	efx->membase_phys = pci_resource_start(efx->pci_dev, EFX_MEM_BAR);
 	rc = pci_request_region(pci_dev, EFX_MEM_BAR, "sfc");
-- 
cgit 


From e1390a2adc72c907fb7a779d0111efa37b033dec Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Wed, 26 Jun 2013 23:49:11 +0100
Subject: DMA-API: net: b43: replace dma_set_mask()+dma_set_coherent_mask()
 with new helper

Replace the following sequence:

	dma_set_mask(dev, mask);
	dma_set_coherent_mask(dev, mask);

with a call to the new helper dma_set_mask_and_coherent().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/net/wireless/b43/dma.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/b43/dma.c b/drivers/net/wireless/b43/dma.c
index c51d2dc489e4..1d7982afc0ad 100644
--- a/drivers/net/wireless/b43/dma.c
+++ b/drivers/net/wireless/b43/dma.c
@@ -1065,12 +1065,9 @@ static int b43_dma_set_mask(struct b43_wldev *dev, u64 mask)
 	/* Try to set the DMA mask. If it fails, try falling back to a
 	 * lower mask, as we can always also support a lower one. */
 	while (1) {
-		err = dma_set_mask(dev->dev->dma_dev, mask);
-		if (!err) {
-			err = dma_set_coherent_mask(dev->dev->dma_dev, mask);
-			if (!err)
-				break;
-		}
+		err = dma_set_mask_and_coherent(dev->dev->dma_dev, mask);
+		if (!err)
+			break;
 		if (mask == DMA_BIT_MASK(64)) {
 			mask = DMA_BIT_MASK(32);
 			fallback = true;
-- 
cgit 


From de71f988003a2e0b3d5b5a3519e9426053b5dda5 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Wed, 26 Jun 2013 23:49:11 +0100
Subject: DMA-API: net: b43legacy: replace
 dma_set_mask()+dma_set_coherent_mask() with new helper

Replace the following sequence:

	dma_set_mask(dev, mask);
	dma_set_coherent_mask(dev, mask);

with a call to the new helper dma_set_mask_and_coherent().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/net/wireless/b43legacy/dma.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/b43legacy/dma.c b/drivers/net/wireless/b43legacy/dma.c
index 42eb26c99e11..b2ed1795130b 100644
--- a/drivers/net/wireless/b43legacy/dma.c
+++ b/drivers/net/wireless/b43legacy/dma.c
@@ -806,12 +806,9 @@ static int b43legacy_dma_set_mask(struct b43legacy_wldev *dev, u64 mask)
 	/* Try to set the DMA mask. If it fails, try falling back to a
 	 * lower mask, as we can always also support a lower one. */
 	while (1) {
-		err = dma_set_mask(dev->dev->dma_dev, mask);
-		if (!err) {
-			err = dma_set_coherent_mask(dev->dev->dma_dev, mask);
-			if (!err)
-				break;
-		}
+		err = dma_set_mask_and_coherent(dev->dev->dma_dev, mask);
+		if (!err)
+			break;
 		if (mask == DMA_BIT_MASK(64)) {
 			mask = DMA_BIT_MASK(32);
 			fallback = true;
-- 
cgit 


From 4886c399da70d5f8a4016c2213850dce6cac88c5 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Wed, 26 Jun 2013 23:49:11 +0100
Subject: DMA-API: ppc: vio.c: replace dma_set_mask()+dma_set_coherent_mask()
 with new helper

Replace the following sequence:

	dma_set_mask(dev, mask);
	dma_set_coherent_mask(dev, mask);

with a call to the new helper dma_set_mask_and_coherent().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/powerpc/kernel/vio.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 78a350670de3..96b6c97be5a1 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -1413,8 +1413,7 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
 
 		/* needed to ensure proper operation of coherent allocations
 		 * later, in case driver doesn't set it explicitly */
-		dma_set_mask(&viodev->dev, DMA_BIT_MASK(64));
-		dma_set_coherent_mask(&viodev->dev, DMA_BIT_MASK(64));
+		dma_set_mask_and_coherent(&viodev->dev, DMA_BIT_MASK(64));
 	}
 
 	/* register with generic device framework */
-- 
cgit 


From 052d0efada8ccfccd924059b75f5fb119cd10f9a Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Wed, 26 Jun 2013 23:49:11 +0100
Subject: DMA-API: block: nvme-core: replace
 dma_set_mask()+dma_set_coherent_mask() with new helper

Replace the following sequence:

	dma_set_mask(dev, mask);
	dma_set_coherent_mask(dev, mask);

with a call to the new helper dma_set_mask_and_coherent().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/block/nvme-core.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/block/nvme-core.c b/drivers/block/nvme-core.c
index da52092980e2..26d03fa0bf26 100644
--- a/drivers/block/nvme-core.c
+++ b/drivers/block/nvme-core.c
@@ -1949,12 +1949,9 @@ static int nvme_dev_map(struct nvme_dev *dev)
 	if (pci_request_selected_regions(pdev, bars, "nvme"))
 		goto disable_pci;
 
-	if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)))
-		dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
-	else if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)))
-		dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
-	else
-		goto disable_pci;
+	if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) &&
+	    dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)))
+		goto disable;
 
 	pci_set_drvdata(pdev, dev);
 	dev->bar = ioremap(pci_resource_start(pdev, 0), 8192);
@@ -2168,6 +2165,7 @@ static int nvme_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	INIT_LIST_HEAD(&dev->namespaces);
 	dev->pci_dev = pdev;
+
 	result = nvme_set_instance(dev);
 	if (result)
 		goto free;
-- 
cgit 


From e22f0e3fdc2b5b3a399df29c3b5991e35b690320 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Wed, 26 Jun 2013 23:49:11 +0100
Subject: DMA-API: staging: et131x: replace
 dma_set_mask()+dma_set_coherent_mask() with new helper

Replace the following sequence:

	dma_set_mask(dev, mask);
	dma_set_coherent_mask(dev, mask);

with a call to the new helper dma_set_mask_and_coherent().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/staging/et131x/et131x.c | 17 ++---------------
 1 file changed, 2 insertions(+), 15 deletions(-)

diff --git a/drivers/staging/et131x/et131x.c b/drivers/staging/et131x/et131x.c
index f73e58f5ef8d..61da7ee36e45 100644
--- a/drivers/staging/et131x/et131x.c
+++ b/drivers/staging/et131x/et131x.c
@@ -4797,21 +4797,8 @@ static int et131x_pci_setup(struct pci_dev *pdev,
 	pci_set_master(pdev);
 
 	/* Check the DMA addressing support of this device */
-	if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
-		rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
-		if (rc < 0) {
-			dev_err(&pdev->dev,
-			  "Unable to obtain 64 bit DMA for consistent allocations\n");
-			goto err_release_res;
-		}
-	} else if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) {
-		rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
-		if (rc < 0) {
-			dev_err(&pdev->dev,
-			  "Unable to obtain 32 bit DMA for consistent allocations\n");
-			goto err_release_res;
-		}
-	} else {
+	if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)) &&
+	    dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32))) {
 		dev_err(&pdev->dev, "No usable DMA addressing method\n");
 		rc = -EIO;
 		goto err_release_res;
-- 
cgit 


From ed08d40cdec45f3f1071fa4679127d4b76dc8986 Mon Sep 17 00:00:00 2001
From: Chuansheng Liu <chuansheng.liu@intel.com>
Date: Wed, 18 Sep 2013 20:21:49 +0800
Subject: ahci: Changing two module params with static and __read_mostly

Here module parameters ahci_em_messages and devslp_idle_timeout can
be set as static and __read_mostly.

Signed-off-by: Liu, Chuansheng <chuansheng.liu@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 drivers/ata/libahci.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index acfd0f711069..b67086fde1f1 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -189,14 +189,15 @@ struct ata_port_operations ahci_pmp_retry_srst_ops = {
 };
 EXPORT_SYMBOL_GPL(ahci_pmp_retry_srst_ops);
 
-int ahci_em_messages = 1;
+static bool ahci_em_messages __read_mostly = true;
 EXPORT_SYMBOL_GPL(ahci_em_messages);
-module_param(ahci_em_messages, int, 0444);
+module_param(ahci_em_messages, bool, 0444);
 /* add other LED protocol types when they become supported */
 MODULE_PARM_DESC(ahci_em_messages,
 	"AHCI Enclosure Management Message control (0 = off, 1 = on)");
 
-int devslp_idle_timeout = 1000;	/* device sleep idle timeout in ms */
+/* device sleep idle timeout in ms */
+static int devslp_idle_timeout __read_mostly = 1000;
 module_param(devslp_idle_timeout, int, 0644);
 MODULE_PARM_DESC(devslp_idle_timeout, "device sleep idle timeout");
 
-- 
cgit 


From eb6b036dde364c528807f53ee8c8e5c9b0e46c34 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 13 Sep 2013 21:45:51 +0200
Subject: clk: nomadik: set all timers to use 2.4 MHz TIMCLK

This fixes a regression for the Nomadik on the main system
timers.

The Nomadik seemed a bit slow and its heartbeat wasn't looking
healthy. And it was not strange, because it has been connected
to the 32768 Hz clock at boot, while being told by the clock driver
that it was 2.4MHz. Actually connect the TIMCLK to 2.4MHz by
default as this is what we want for nice scheduling, clocksource
and clock event.

Cc: stable@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/clk/clk-nomadik.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/clk/clk-nomadik.c b/drivers/clk/clk-nomadik.c
index 51410c2ac2cb..4d978a3c88f7 100644
--- a/drivers/clk/clk-nomadik.c
+++ b/drivers/clk/clk-nomadik.c
@@ -27,6 +27,14 @@
  */
 
 #define SRC_CR			0x00U
+#define SRC_CR_T0_ENSEL		BIT(15)
+#define SRC_CR_T1_ENSEL		BIT(17)
+#define SRC_CR_T2_ENSEL		BIT(19)
+#define SRC_CR_T3_ENSEL		BIT(21)
+#define SRC_CR_T4_ENSEL		BIT(23)
+#define SRC_CR_T5_ENSEL		BIT(25)
+#define SRC_CR_T6_ENSEL		BIT(27)
+#define SRC_CR_T7_ENSEL		BIT(29)
 #define SRC_XTALCR		0x0CU
 #define SRC_XTALCR_XTALTIMEN	BIT(20)
 #define SRC_XTALCR_SXTALDIS	BIT(19)
@@ -543,6 +551,19 @@ void __init nomadik_clk_init(void)
 		       __func__, np->name);
 		return;
 	}
+
+	/* Set all timers to use the 2.4 MHz TIMCLK */
+	val = readl(src_base + SRC_CR);
+	val |= SRC_CR_T0_ENSEL;
+	val |= SRC_CR_T1_ENSEL;
+	val |= SRC_CR_T2_ENSEL;
+	val |= SRC_CR_T3_ENSEL;
+	val |= SRC_CR_T4_ENSEL;
+	val |= SRC_CR_T5_ENSEL;
+	val |= SRC_CR_T6_ENSEL;
+	val |= SRC_CR_T7_ENSEL;
+	writel(val, src_base + SRC_CR);
+
 	val = readl(src_base + SRC_XTALCR);
 	pr_info("SXTALO is %s\n",
 		(val & SRC_XTALCR_SXTALDIS) ? "disabled" : "enabled");
-- 
cgit 


From 98c08cf4e39748f1bcbeb48338638181f8b1eb60 Mon Sep 17 00:00:00 2001
From: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Date: Sun, 22 Sep 2013 09:20:00 +0100
Subject: iio: ti_am335x_adc: fix static in function header

Static is missing in function header. Corrected.

Signed-off-by: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ti_am335x_adc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index 5287bffd8a75..91dce1f7a770 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -226,7 +226,7 @@ static const struct iio_buffer_setup_ops tiadc_buffer_setup_ops = {
 	.postdisable = &tiadc_buffer_postdisable,
 };
 
-int tiadc_iio_buffered_hardware_setup(struct iio_dev *indio_dev,
+static int tiadc_iio_buffered_hardware_setup(struct iio_dev *indio_dev,
 	irqreturn_t (*pollfunc_bh)(int irq, void *p),
 	irqreturn_t (*pollfunc_th)(int irq, void *p),
 	int irq,
-- 
cgit 


From a77d0209120aef181b6da252df2b4c83383c5a50 Mon Sep 17 00:00:00 2001
From: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Date: Sun, 22 Sep 2013 09:20:00 +0100
Subject: iio: ti_am335x_adc: cleanup trigger related code

Trigger related headers and variables are not needed
as driver is now based on INDIO_BUFFER_HARDWARE mode

Signed-off-by: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ti_am335x_adc.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index 91dce1f7a770..4eb63eb42711 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -30,9 +30,6 @@
 #include <linux/mfd/ti_am335x_tscadc.h>
 #include <linux/iio/buffer.h>
 #include <linux/iio/kfifo_buf.h>
-#include <linux/iio/trigger.h>
-#include <linux/iio/trigger_consumer.h>
-#include <linux/iio/triggered_buffer.h>
 
 struct tiadc_device {
 	struct ti_tscadc_dev *mfd_tscadc;
@@ -40,7 +37,6 @@ struct tiadc_device {
 	u8 channel_line[8];
 	u8 channel_step[8];
 	int buffer_en_ch_steps;
-	struct iio_trigger *trig;
 	u16 data[8];
 };
 
-- 
cgit 


From 074b6a8d9d73db27d48abe4200ce149bd4189b39 Mon Sep 17 00:00:00 2001
From: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Date: Sun, 22 Sep 2013 09:20:00 +0100
Subject: iio: ti_am335x_adc: cleanup error case

Driver is functional without this error case. Cleaned up.

Signed-off-by: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ti_am335x_adc.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index 4eb63eb42711..8fb5429e39ae 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -323,7 +323,6 @@ static int tiadc_read_raw(struct iio_dev *indio_dev,
 	struct tiadc_device *adc_dev = iio_priv(indio_dev);
 	int i, map_val;
 	unsigned int fifo1count, read, stepid;
-	u32 step = UINT_MAX;
 	bool found = false;
 	u32 step_en;
 	unsigned long timeout = jiffies + usecs_to_jiffies
@@ -353,15 +352,6 @@ static int tiadc_read_raw(struct iio_dev *indio_dev,
 	 * Hence we need to flush out this data.
 	 */
 
-	for (i = 0; i < ARRAY_SIZE(adc_dev->channel_step); i++) {
-		if (chan->channel == adc_dev->channel_line[i]) {
-			step = adc_dev->channel_step[i];
-			break;
-		}
-	}
-	if (WARN_ON_ONCE(step == UINT_MAX))
-		return -EINVAL;
-
 	fifo1count = tiadc_readl(adc_dev, REG_FIFO1CNT);
 	for (i = 0; i < fifo1count; i++) {
 		read = tiadc_readl(adc_dev, REG_FIFO1);
-- 
cgit 


From 941247f910953d6b0649c81f6cb446110438afae Mon Sep 17 00:00:00 2001
From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Sun, 22 Sep 2013 20:44:10 +0200
Subject: Bluetooth: Fix assignment of 0/1 to bool variables

Convert 0 to false and 1 to true when assigning values to bool
variables. Inspired by commit 3db1cd5c05f35fb43eb134df6f321de4e63141f2.

The simplified semantic patch that find this problem is as
follows (http://coccinelle.lip6.fr/):

@@
bool b;
@@
(
-b = 0
+b = false
|
-b = 1
+b = true
)

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/l2cap_core.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 636a3b4873db..688848074094 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -5797,7 +5797,7 @@ static int l2cap_rx_state_recv(struct l2cap_chan *chan,
 			       struct sk_buff *skb, u8 event)
 {
 	int err = 0;
-	bool skb_in_use = 0;
+	bool skb_in_use = false;
 
 	BT_DBG("chan %p, control %p, skb %p, event %d", chan, control, skb,
 	       event);
@@ -5818,7 +5818,7 @@ static int l2cap_rx_state_recv(struct l2cap_chan *chan,
 							   control->txseq);
 
 			chan->buffer_seq = chan->expected_tx_seq;
-			skb_in_use = 1;
+			skb_in_use = true;
 
 			err = l2cap_reassemble_sdu(chan, skb, control);
 			if (err)
@@ -5854,7 +5854,7 @@ static int l2cap_rx_state_recv(struct l2cap_chan *chan,
 			 * current frame is stored for later use.
 			 */
 			skb_queue_tail(&chan->srej_q, skb);
-			skb_in_use = 1;
+			skb_in_use = true;
 			BT_DBG("Queued %p (queue len %d)", skb,
 			       skb_queue_len(&chan->srej_q));
 
@@ -5932,7 +5932,7 @@ static int l2cap_rx_state_srej_sent(struct l2cap_chan *chan,
 {
 	int err = 0;
 	u16 txseq = control->txseq;
-	bool skb_in_use = 0;
+	bool skb_in_use = false;
 
 	BT_DBG("chan %p, control %p, skb %p, event %d", chan, control, skb,
 	       event);
@@ -5944,7 +5944,7 @@ static int l2cap_rx_state_srej_sent(struct l2cap_chan *chan,
 			/* Keep frame for reassembly later */
 			l2cap_pass_to_tx(chan, control);
 			skb_queue_tail(&chan->srej_q, skb);
-			skb_in_use = 1;
+			skb_in_use = true;
 			BT_DBG("Queued %p (queue len %d)", skb,
 			       skb_queue_len(&chan->srej_q));
 
@@ -5955,7 +5955,7 @@ static int l2cap_rx_state_srej_sent(struct l2cap_chan *chan,
 
 			l2cap_pass_to_tx(chan, control);
 			skb_queue_tail(&chan->srej_q, skb);
-			skb_in_use = 1;
+			skb_in_use = true;
 			BT_DBG("Queued %p (queue len %d)", skb,
 			       skb_queue_len(&chan->srej_q));
 
@@ -5970,7 +5970,7 @@ static int l2cap_rx_state_srej_sent(struct l2cap_chan *chan,
 			 * the missing frames.
 			 */
 			skb_queue_tail(&chan->srej_q, skb);
-			skb_in_use = 1;
+			skb_in_use = true;
 			BT_DBG("Queued %p (queue len %d)", skb,
 			       skb_queue_len(&chan->srej_q));
 
@@ -5984,7 +5984,7 @@ static int l2cap_rx_state_srej_sent(struct l2cap_chan *chan,
 			 * SREJ'd frames.
 			 */
 			skb_queue_tail(&chan->srej_q, skb);
-			skb_in_use = 1;
+			skb_in_use = true;
 			BT_DBG("Queued %p (queue len %d)", skb,
 			       skb_queue_len(&chan->srej_q));
 
-- 
cgit 


From 6d3b334d677cd0c18cf99ababe1441b62dd08020 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sun, 22 Sep 2013 10:32:16 -0700
Subject: ping.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/ping.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/net/ping.h b/include/net/ping.h
index 5db0224b73ac..3f67704f3747 100644
--- a/include/net/ping.h
+++ b/include/net/ping.h
@@ -103,8 +103,8 @@ void ping_seq_stop(struct seq_file *seq, void *v);
 int ping_proc_register(struct net *net, struct ping_seq_afinfo *afinfo);
 void ping_proc_unregister(struct net *net, struct ping_seq_afinfo *afinfo);
 
-extern int __init ping_proc_init(void);
-extern void ping_proc_exit(void);
+int __init ping_proc_init(void);
+void ping_proc_exit(void);
 #endif
 
 void __init ping_init(void);
-- 
cgit 


From f307c6365648e919d7ac733f0b3a7e9ee3e31eb2 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sun, 22 Sep 2013 10:32:17 -0700
Subject: protocol.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/protocol.h | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/include/net/protocol.h b/include/net/protocol.h
index 047c0476c0a0..fbf7676c9a02 100644
--- a/include/net/protocol.h
+++ b/include/net/protocol.h
@@ -96,20 +96,20 @@ extern const struct net_offload __rcu *inet6_offloads[MAX_INET_PROTOS];
 extern const struct inet6_protocol __rcu *inet6_protos[MAX_INET_PROTOS];
 #endif
 
-extern int	inet_add_protocol(const struct net_protocol *prot, unsigned char num);
-extern int	inet_del_protocol(const struct net_protocol *prot, unsigned char num);
-extern int	inet_add_offload(const struct net_offload *prot, unsigned char num);
-extern int	inet_del_offload(const struct net_offload *prot, unsigned char num);
-extern void	inet_register_protosw(struct inet_protosw *p);
-extern void	inet_unregister_protosw(struct inet_protosw *p);
+int inet_add_protocol(const struct net_protocol *prot, unsigned char num);
+int inet_del_protocol(const struct net_protocol *prot, unsigned char num);
+int inet_add_offload(const struct net_offload *prot, unsigned char num);
+int inet_del_offload(const struct net_offload *prot, unsigned char num);
+void inet_register_protosw(struct inet_protosw *p);
+void inet_unregister_protosw(struct inet_protosw *p);
 
 #if IS_ENABLED(CONFIG_IPV6)
-extern int	inet6_add_protocol(const struct inet6_protocol *prot, unsigned char num);
-extern int	inet6_del_protocol(const struct inet6_protocol *prot, unsigned char num);
-extern int	inet6_register_protosw(struct inet_protosw *p);
-extern void	inet6_unregister_protosw(struct inet_protosw *p);
+int inet6_add_protocol(const struct inet6_protocol *prot, unsigned char num);
+int inet6_del_protocol(const struct inet6_protocol *prot, unsigned char num);
+int inet6_register_protosw(struct inet_protosw *p);
+void inet6_unregister_protosw(struct inet_protosw *p);
 #endif
-extern int	inet6_add_offload(const struct net_offload *prot, unsigned char num);
-extern int	inet6_del_offload(const struct net_offload *prot, unsigned char num);
+int inet6_add_offload(const struct net_offload *prot, unsigned char num);
+int inet6_del_offload(const struct net_offload *prot, unsigned char num);
 
 #endif	/* _PROTOCOL_H */
-- 
cgit 


From c64b5c4b916f47ba854a560d6c56d87790e344ca Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sun, 22 Sep 2013 10:32:18 -0700
Subject: psnap.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/psnap.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/net/psnap.h b/include/net/psnap.h
index fe456c295b04..78db4cc1306a 100644
--- a/include/net/psnap.h
+++ b/include/net/psnap.h
@@ -1,11 +1,11 @@
 #ifndef _NET_PSNAP_H
 #define _NET_PSNAP_H
 
-extern struct datalink_proto *
+struct datalink_proto *
 register_snap_client(const unsigned char *desc,
 		     int (*rcvfunc)(struct sk_buff *, struct net_device *,
 				    struct packet_type *,
 				    struct net_device *orig_dev));
-extern void unregister_snap_client(struct datalink_proto *proto);
+void unregister_snap_client(struct datalink_proto *proto);
 
 #endif
-- 
cgit 


From 0ad6ad946167a706e22eb7bad9e77735bc577074 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sun, 22 Sep 2013 10:32:19 -0700
Subject: raw/rawv6.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/raw.h   | 6 +++---
 include/net/rawv6.h | 3 +--
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/include/net/raw.h b/include/net/raw.h
index 42ce6fe7a2d5..6a40c6562dd2 100644
--- a/include/net/raw.h
+++ b/include/net/raw.h
@@ -26,7 +26,7 @@ extern struct proto raw_prot;
 void raw_icmp_error(struct sk_buff *, int, u32);
 int raw_local_deliver(struct sk_buff *, int);
 
-extern int 	raw_rcv(struct sock *, struct sk_buff *);
+int raw_rcv(struct sock *, struct sk_buff *);
 
 #define RAW_HTABLE_SIZE	MAX_INET_PROTOS
 
@@ -36,8 +36,8 @@ struct raw_hashinfo {
 };
 
 #ifdef CONFIG_PROC_FS
-extern int  raw_proc_init(void);
-extern void raw_proc_exit(void);
+int raw_proc_init(void);
+void raw_proc_exit(void);
 
 struct raw_iter_state {
 	struct seq_net_private p;
diff --git a/include/net/rawv6.h b/include/net/rawv6.h
index e7ea660e4db6..87783dea0791 100644
--- a/include/net/rawv6.h
+++ b/include/net/rawv6.h
@@ -7,8 +7,7 @@ void raw6_icmp_error(struct sk_buff *, int nexthdr,
 		u8 type, u8 code, int inner_offset, __be32);
 bool raw6_local_deliver(struct sk_buff *, int);
 
-extern int			rawv6_rcv(struct sock *sk,
-					  struct sk_buff *skb);
+int rawv6_rcv(struct sock *sk, struct sk_buff *skb);
 
 #if defined(CONFIG_IPV6_MIP6) || defined(CONFIG_IPV6_MIP6_MODULE)
 int rawv6_mh_filter_register(int (*filter)(struct sock *sock,
-- 
cgit 


From c0f4502a8700832bb3a917fdcfe080f5ccf1c617 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sun, 22 Sep 2013 10:32:20 -0700
Subject: request_sock.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/request_sock.h | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/include/net/request_sock.h b/include/net/request_sock.h
index 59795e42c8b6..65c3e5164a5c 100644
--- a/include/net/request_sock.h
+++ b/include/net/request_sock.h
@@ -43,7 +43,7 @@ struct request_sock_ops {
 					   struct request_sock *req);
 };
 
-extern int inet_rtx_syn_ack(struct sock *parent, struct request_sock *req);
+int inet_rtx_syn_ack(struct sock *parent, struct request_sock *req);
 
 /* struct request_sock - mini sock to represent a connection request
  */
@@ -162,13 +162,13 @@ struct request_sock_queue {
 					     */
 };
 
-extern int reqsk_queue_alloc(struct request_sock_queue *queue,
-			     unsigned int nr_table_entries);
+int reqsk_queue_alloc(struct request_sock_queue *queue,
+		      unsigned int nr_table_entries);
 
-extern void __reqsk_queue_destroy(struct request_sock_queue *queue);
-extern void reqsk_queue_destroy(struct request_sock_queue *queue);
-extern void reqsk_fastopen_remove(struct sock *sk,
-				  struct request_sock *req, bool reset);
+void __reqsk_queue_destroy(struct request_sock_queue *queue);
+void reqsk_queue_destroy(struct request_sock_queue *queue);
+void reqsk_fastopen_remove(struct sock *sk, struct request_sock *req,
+			   bool reset);
 
 static inline struct request_sock *
 	reqsk_queue_yank_acceptq(struct request_sock_queue *queue)
-- 
cgit 


From 54df3b961db19e3eb6ccbac0ca469c56b1b58689 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sun, 22 Sep 2013 10:32:21 -0700
Subject: rose.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/rose.h | 114 ++++++++++++++++++++++++++++-------------------------
 1 file changed, 60 insertions(+), 54 deletions(-)

diff --git a/include/net/rose.h b/include/net/rose.h
index 555dd198aab7..50811fe2c585 100644
--- a/include/net/rose.h
+++ b/include/net/rose.h
@@ -160,38 +160,42 @@ extern int  sysctl_rose_routing_control;
 extern int  sysctl_rose_link_fail_timeout;
 extern int  sysctl_rose_maximum_vcs;
 extern int  sysctl_rose_window_size;
-extern int  rosecmp(rose_address *, rose_address *);
-extern int  rosecmpm(rose_address *, rose_address *, unsigned short);
-extern char *rose2asc(char *buf, const rose_address *);
-extern struct sock *rose_find_socket(unsigned int, struct rose_neigh *);
-extern void rose_kill_by_neigh(struct rose_neigh *);
-extern unsigned int rose_new_lci(struct rose_neigh *);
-extern int  rose_rx_call_request(struct sk_buff *, struct net_device *, struct rose_neigh *, unsigned int);
-extern void rose_destroy_socket(struct sock *);
+
+int rosecmp(rose_address *, rose_address *);
+int rosecmpm(rose_address *, rose_address *, unsigned short);
+char *rose2asc(char *buf, const rose_address *);
+struct sock *rose_find_socket(unsigned int, struct rose_neigh *);
+void rose_kill_by_neigh(struct rose_neigh *);
+unsigned int rose_new_lci(struct rose_neigh *);
+int rose_rx_call_request(struct sk_buff *, struct net_device *,
+			 struct rose_neigh *, unsigned int);
+void rose_destroy_socket(struct sock *);
 
 /* rose_dev.c */
-extern void  rose_setup(struct net_device *);
+void rose_setup(struct net_device *);
 
 /* rose_in.c */
-extern int  rose_process_rx_frame(struct sock *, struct sk_buff *);
+int rose_process_rx_frame(struct sock *, struct sk_buff *);
 
 /* rose_link.c */
-extern void rose_start_ftimer(struct rose_neigh *);
-extern void rose_stop_ftimer(struct rose_neigh *);
-extern void rose_stop_t0timer(struct rose_neigh *);
-extern int  rose_ftimer_running(struct rose_neigh *);
-extern void rose_link_rx_restart(struct sk_buff *, struct rose_neigh *, unsigned short);
-extern void rose_transmit_clear_request(struct rose_neigh *, unsigned int, unsigned char, unsigned char);
-extern void rose_transmit_link(struct sk_buff *, struct rose_neigh *);
+void rose_start_ftimer(struct rose_neigh *);
+void rose_stop_ftimer(struct rose_neigh *);
+void rose_stop_t0timer(struct rose_neigh *);
+int rose_ftimer_running(struct rose_neigh *);
+void rose_link_rx_restart(struct sk_buff *, struct rose_neigh *,
+			  unsigned short);
+void rose_transmit_clear_request(struct rose_neigh *, unsigned int,
+				 unsigned char, unsigned char);
+void rose_transmit_link(struct sk_buff *, struct rose_neigh *);
 
 /* rose_loopback.c */
-extern void rose_loopback_init(void);
-extern void rose_loopback_clear(void);
-extern int  rose_loopback_queue(struct sk_buff *, struct rose_neigh *);
+void rose_loopback_init(void);
+void rose_loopback_clear(void);
+int rose_loopback_queue(struct sk_buff *, struct rose_neigh *);
 
 /* rose_out.c */
-extern void rose_kick(struct sock *);
-extern void rose_enquiry_response(struct sock *);
+void rose_kick(struct sock *);
+void rose_enquiry_response(struct sock *);
 
 /* rose_route.c */
 extern struct rose_neigh *rose_loopback_neigh;
@@ -199,43 +203,45 @@ extern const struct file_operations rose_neigh_fops;
 extern const struct file_operations rose_nodes_fops;
 extern const struct file_operations rose_routes_fops;
 
-extern void rose_add_loopback_neigh(void);
-extern int __must_check rose_add_loopback_node(rose_address *);
-extern void rose_del_loopback_node(rose_address *);
-extern void rose_rt_device_down(struct net_device *);
-extern void rose_link_device_down(struct net_device *);
-extern struct net_device *rose_dev_first(void);
-extern struct net_device *rose_dev_get(rose_address *);
-extern struct rose_route *rose_route_free_lci(unsigned int, struct rose_neigh *);
-extern struct rose_neigh *rose_get_neigh(rose_address *, unsigned char *, unsigned char *, int);
-extern int  rose_rt_ioctl(unsigned int, void __user *);
-extern void rose_link_failed(ax25_cb *, int);
-extern int  rose_route_frame(struct sk_buff *, ax25_cb *);
-extern void rose_rt_free(void);
+void rose_add_loopback_neigh(void);
+int __must_check rose_add_loopback_node(rose_address *);
+void rose_del_loopback_node(rose_address *);
+void rose_rt_device_down(struct net_device *);
+void rose_link_device_down(struct net_device *);
+struct net_device *rose_dev_first(void);
+struct net_device *rose_dev_get(rose_address *);
+struct rose_route *rose_route_free_lci(unsigned int, struct rose_neigh *);
+struct rose_neigh *rose_get_neigh(rose_address *, unsigned char *,
+				  unsigned char *, int);
+int rose_rt_ioctl(unsigned int, void __user *);
+void rose_link_failed(ax25_cb *, int);
+int rose_route_frame(struct sk_buff *, ax25_cb *);
+void rose_rt_free(void);
 
 /* rose_subr.c */
-extern void rose_clear_queues(struct sock *);
-extern void rose_frames_acked(struct sock *, unsigned short);
-extern void rose_requeue_frames(struct sock *);
-extern int  rose_validate_nr(struct sock *, unsigned short);
-extern void rose_write_internal(struct sock *, int);
-extern int  rose_decode(struct sk_buff *, int *, int *, int *, int *, int *);
-extern int  rose_parse_facilities(unsigned char *, unsigned int, struct rose_facilities_struct *);
-extern void rose_disconnect(struct sock *, int, int, int);
+void rose_clear_queues(struct sock *);
+void rose_frames_acked(struct sock *, unsigned short);
+void rose_requeue_frames(struct sock *);
+int rose_validate_nr(struct sock *, unsigned short);
+void rose_write_internal(struct sock *, int);
+int rose_decode(struct sk_buff *, int *, int *, int *, int *, int *);
+int rose_parse_facilities(unsigned char *, unsigned int,
+			  struct rose_facilities_struct *);
+void rose_disconnect(struct sock *, int, int, int);
 
 /* rose_timer.c */
-extern void rose_start_heartbeat(struct sock *);
-extern void rose_start_t1timer(struct sock *);
-extern void rose_start_t2timer(struct sock *);
-extern void rose_start_t3timer(struct sock *);
-extern void rose_start_hbtimer(struct sock *);
-extern void rose_start_idletimer(struct sock *);
-extern void rose_stop_heartbeat(struct sock *);
-extern void rose_stop_timer(struct sock *);
-extern void rose_stop_idletimer(struct sock *);
+void rose_start_heartbeat(struct sock *);
+void rose_start_t1timer(struct sock *);
+void rose_start_t2timer(struct sock *);
+void rose_start_t3timer(struct sock *);
+void rose_start_hbtimer(struct sock *);
+void rose_start_idletimer(struct sock *);
+void rose_stop_heartbeat(struct sock *);
+void rose_stop_timer(struct sock *);
+void rose_stop_idletimer(struct sock *);
 
 /* sysctl_net_rose.c */
-extern void rose_register_sysctl(void);
-extern void rose_unregister_sysctl(void);
+void rose_register_sysctl(void);
+void rose_unregister_sysctl(void);
 
 #endif
-- 
cgit 


From 2702c4bb89b2a9bfe49f3db77a1bac88d5c6404c Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sun, 22 Sep 2013 10:32:22 -0700
Subject: route.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/route.h | 53 ++++++++++++++++++++++++++++-------------------------
 1 file changed, 28 insertions(+), 25 deletions(-)

diff --git a/include/net/route.h b/include/net/route.h
index afdeeb5bec25..6f572ca66d25 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -108,13 +108,15 @@ struct rt_cache_stat {
 extern struct ip_rt_acct __percpu *ip_rt_acct;
 
 struct in_device;
-extern int		ip_rt_init(void);
-extern void		rt_cache_flush(struct net *net);
-extern void		rt_flush_dev(struct net_device *dev);
-extern struct rtable *__ip_route_output_key(struct net *, struct flowi4 *flp);
-extern struct rtable *ip_route_output_flow(struct net *, struct flowi4 *flp,
-					   struct sock *sk);
-extern struct dst_entry *ipv4_blackhole_route(struct net *net, struct dst_entry *dst_orig);
+
+int ip_rt_init(void);
+void rt_cache_flush(struct net *net);
+void rt_flush_dev(struct net_device *dev);
+struct rtable *__ip_route_output_key(struct net *, struct flowi4 *flp);
+struct rtable *ip_route_output_flow(struct net *, struct flowi4 *flp,
+				    struct sock *sk);
+struct dst_entry *ipv4_blackhole_route(struct net *net,
+				       struct dst_entry *dst_orig);
 
 static inline struct rtable *ip_route_output_key(struct net *net, struct flowi4 *flp)
 {
@@ -162,8 +164,8 @@ static inline struct rtable *ip_route_output_gre(struct net *net, struct flowi4
 	return ip_route_output_key(net, fl4);
 }
 
-extern int ip_route_input_noref(struct sk_buff *skb, __be32 dst, __be32 src,
-				u8 tos, struct net_device *devin);
+int ip_route_input_noref(struct sk_buff *skb, __be32 dst, __be32 src,
+			 u8 tos, struct net_device *devin);
 
 static inline int ip_route_input(struct sk_buff *skb, __be32 dst, __be32 src,
 				 u8 tos, struct net_device *devin)
@@ -179,24 +181,25 @@ static inline int ip_route_input(struct sk_buff *skb, __be32 dst, __be32 src,
 	return err;
 }
 
-extern void ipv4_update_pmtu(struct sk_buff *skb, struct net *net, u32 mtu,
-			     int oif, u32 mark, u8 protocol, int flow_flags);
-extern void ipv4_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, u32 mtu);
-extern void ipv4_redirect(struct sk_buff *skb, struct net *net,
-			  int oif, u32 mark, u8 protocol, int flow_flags);
-extern void ipv4_sk_redirect(struct sk_buff *skb, struct sock *sk);
-extern void ip_rt_send_redirect(struct sk_buff *skb);
-
-extern unsigned int		inet_addr_type(struct net *net, __be32 addr);
-extern unsigned int		inet_dev_addr_type(struct net *net, const struct net_device *dev, __be32 addr);
-extern void		ip_rt_multicast_event(struct in_device *);
-extern int		ip_rt_ioctl(struct net *, unsigned int cmd, void __user *arg);
-extern void		ip_rt_get_source(u8 *src, struct sk_buff *skb, struct rtable *rt);
-extern int		ip_rt_dump(struct sk_buff *skb,  struct netlink_callback *cb);
+void ipv4_update_pmtu(struct sk_buff *skb, struct net *net, u32 mtu, int oif,
+		      u32 mark, u8 protocol, int flow_flags);
+void ipv4_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, u32 mtu);
+void ipv4_redirect(struct sk_buff *skb, struct net *net, int oif, u32 mark,
+		   u8 protocol, int flow_flags);
+void ipv4_sk_redirect(struct sk_buff *skb, struct sock *sk);
+void ip_rt_send_redirect(struct sk_buff *skb);
+
+unsigned int inet_addr_type(struct net *net, __be32 addr);
+unsigned int inet_dev_addr_type(struct net *net, const struct net_device *dev,
+				__be32 addr);
+void ip_rt_multicast_event(struct in_device *);
+int ip_rt_ioctl(struct net *, unsigned int cmd, void __user *arg);
+void ip_rt_get_source(u8 *src, struct sk_buff *skb, struct rtable *rt);
+int ip_rt_dump(struct sk_buff *skb,  struct netlink_callback *cb);
 
 struct in_ifaddr;
-extern void fib_add_ifaddr(struct in_ifaddr *);
-extern void fib_del_ifaddr(struct in_ifaddr *, struct in_ifaddr *);
+void fib_add_ifaddr(struct in_ifaddr *);
+void fib_del_ifaddr(struct in_ifaddr *, struct in_ifaddr *);
 
 static inline void ip_rt_put(struct rtable *rt)
 {
-- 
cgit 


From efb48ccfcda4dbb9fce39c5c8df19644a08121c0 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sun, 22 Sep 2013 10:32:23 -0700
Subject: rtnetlink.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/rtnetlink.h | 40 +++++++++++++++++++---------------------
 1 file changed, 19 insertions(+), 21 deletions(-)

diff --git a/include/net/rtnetlink.h b/include/net/rtnetlink.h
index 702664833a53..bb13a182fba6 100644
--- a/include/net/rtnetlink.h
+++ b/include/net/rtnetlink.h
@@ -8,14 +8,12 @@ typedef int (*rtnl_doit_func)(struct sk_buff *, struct nlmsghdr *);
 typedef int (*rtnl_dumpit_func)(struct sk_buff *, struct netlink_callback *);
 typedef u16 (*rtnl_calcit_func)(struct sk_buff *, struct nlmsghdr *);
 
-extern int	__rtnl_register(int protocol, int msgtype,
-				rtnl_doit_func, rtnl_dumpit_func,
-				rtnl_calcit_func);
-extern void	rtnl_register(int protocol, int msgtype,
-			      rtnl_doit_func, rtnl_dumpit_func,
-			      rtnl_calcit_func);
-extern int	rtnl_unregister(int protocol, int msgtype);
-extern void	rtnl_unregister_all(int protocol);
+int __rtnl_register(int protocol, int msgtype,
+		    rtnl_doit_func, rtnl_dumpit_func, rtnl_calcit_func);
+void rtnl_register(int protocol, int msgtype,
+		   rtnl_doit_func, rtnl_dumpit_func, rtnl_calcit_func);
+int rtnl_unregister(int protocol, int msgtype);
+void rtnl_unregister_all(int protocol);
 
 static inline int rtnl_msg_family(const struct nlmsghdr *nlh)
 {
@@ -83,11 +81,11 @@ struct rtnl_link_ops {
 	unsigned int		(*get_num_rx_queues)(void);
 };
 
-extern int	__rtnl_link_register(struct rtnl_link_ops *ops);
-extern void	__rtnl_link_unregister(struct rtnl_link_ops *ops);
+int __rtnl_link_register(struct rtnl_link_ops *ops);
+void __rtnl_link_unregister(struct rtnl_link_ops *ops);
 
-extern int	rtnl_link_register(struct rtnl_link_ops *ops);
-extern void	rtnl_link_unregister(struct rtnl_link_ops *ops);
+int rtnl_link_register(struct rtnl_link_ops *ops);
+void rtnl_link_unregister(struct rtnl_link_ops *ops);
 
 /**
  * 	struct rtnl_af_ops - rtnetlink address family operations
@@ -117,18 +115,18 @@ struct rtnl_af_ops {
 					       const struct nlattr *attr);
 };
 
-extern int	__rtnl_af_register(struct rtnl_af_ops *ops);
-extern void	__rtnl_af_unregister(struct rtnl_af_ops *ops);
+int __rtnl_af_register(struct rtnl_af_ops *ops);
+void __rtnl_af_unregister(struct rtnl_af_ops *ops);
 
-extern int	rtnl_af_register(struct rtnl_af_ops *ops);
-extern void	rtnl_af_unregister(struct rtnl_af_ops *ops);
+int rtnl_af_register(struct rtnl_af_ops *ops);
+void rtnl_af_unregister(struct rtnl_af_ops *ops);
 
+struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[]);
+struct net_device *rtnl_create_link(struct net *net, char *ifname,
+				    const struct rtnl_link_ops *ops,
+				    struct nlattr *tb[]);
+int rtnl_configure_link(struct net_device *dev, const struct ifinfomsg *ifm);
 
-extern struct net *rtnl_link_get_net(struct net *src_net, struct nlattr *tb[]);
-extern struct net_device *rtnl_create_link(struct net *net,
-	char *ifname, const struct rtnl_link_ops *ops, struct nlattr *tb[]);
-extern int rtnl_configure_link(struct net_device *dev,
-			       const struct ifinfomsg *ifm);
 extern const struct nla_policy ifla_policy[IFLA_MAX+1];
 
 #define MODULE_ALIAS_RTNL_LINK(kind) MODULE_ALIAS("rtnl-link-" kind)
-- 
cgit 


From 8153ff5c5f3183dec007469d7e039b4d01ea6d82 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sun, 22 Sep 2013 10:32:24 -0700
Subject: scm.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/scm.h | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/net/scm.h b/include/net/scm.h
index 8de2d37d2077..262532d111f5 100644
--- a/include/net/scm.h
+++ b/include/net/scm.h
@@ -33,11 +33,11 @@ struct scm_cookie {
 #endif
 };
 
-extern void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm);
-extern void scm_detach_fds_compat(struct msghdr *msg, struct scm_cookie *scm);
-extern int __scm_send(struct socket *sock, struct msghdr *msg, struct scm_cookie *scm);
-extern void __scm_destroy(struct scm_cookie *scm);
-extern struct scm_fp_list * scm_fp_dup(struct scm_fp_list *fpl);
+void scm_detach_fds(struct msghdr *msg, struct scm_cookie *scm);
+void scm_detach_fds_compat(struct msghdr *msg, struct scm_cookie *scm);
+int __scm_send(struct socket *sock, struct msghdr *msg, struct scm_cookie *scm);
+void __scm_destroy(struct scm_cookie *scm);
+struct scm_fp_list *scm_fp_dup(struct scm_fp_list *fpl);
 
 #ifdef CONFIG_SECURITY_NETWORK
 static __inline__ void unix_get_peersec_dgram(struct socket *sock, struct scm_cookie *scm)
-- 
cgit 


From a4ea1fef97e31fbdac77e5d1e183ea345fbb2cd6 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sun, 22 Sep 2013 10:32:25 -0700
Subject: secure_seq.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/secure_seq.h | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/include/net/secure_seq.h b/include/net/secure_seq.h
index 6ca975bebd37..52c1a906f288 100644
--- a/include/net/secure_seq.h
+++ b/include/net/secure_seq.h
@@ -3,19 +3,19 @@
 
 #include <linux/types.h>
 
-extern void net_secret_init(void);
-extern __u32 secure_ip_id(__be32 daddr);
-extern __u32 secure_ipv6_id(const __be32 daddr[4]);
-extern u32 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport);
-extern u32 secure_ipv6_port_ephemeral(const __be32 *saddr, const __be32 *daddr,
-				      __be16 dport);
-extern __u32 secure_tcp_sequence_number(__be32 saddr, __be32 daddr,
-					__be16 sport, __be16 dport);
-extern __u32 secure_tcpv6_sequence_number(const __be32 *saddr, const __be32 *daddr,
-					  __be16 sport, __be16 dport);
-extern u64 secure_dccp_sequence_number(__be32 saddr, __be32 daddr,
-				       __be16 sport, __be16 dport);
-extern u64 secure_dccpv6_sequence_number(__be32 *saddr, __be32 *daddr,
-					 __be16 sport, __be16 dport);
+void net_secret_init(void);
+__u32 secure_ip_id(__be32 daddr);
+__u32 secure_ipv6_id(const __be32 daddr[4]);
+u32 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport);
+u32 secure_ipv6_port_ephemeral(const __be32 *saddr, const __be32 *daddr,
+			       __be16 dport);
+__u32 secure_tcp_sequence_number(__be32 saddr, __be32 daddr,
+				 __be16 sport, __be16 dport);
+__u32 secure_tcpv6_sequence_number(const __be32 *saddr, const __be32 *daddr,
+				   __be16 sport, __be16 dport);
+u64 secure_dccp_sequence_number(__be32 saddr, __be32 daddr,
+				__be16 sport, __be16 dport);
+u64 secure_dccpv6_sequence_number(__be32 *saddr, __be32 *daddr,
+				  __be16 sport, __be16 dport);
 
 #endif /* _NET_SECURE_SEQ */
-- 
cgit 


From 69336bd2d3ddce315dc57be894e4b57a91036a14 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sun, 22 Sep 2013 10:32:26 -0700
Subject: sock.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/sock.h | 223 ++++++++++++++++++++++++-----------------------------
 1 file changed, 99 insertions(+), 124 deletions(-)

diff --git a/include/net/sock.h b/include/net/sock.h
index 6ba2e7b0e2b1..4625d2eff461 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -746,7 +746,7 @@ static inline int sk_stream_wspace(const struct sock *sk)
 	return sk->sk_sndbuf - sk->sk_wmem_queued;
 }
 
-extern void sk_stream_write_space(struct sock *sk);
+void sk_stream_write_space(struct sock *sk);
 
 /* OOB backlog add */
 static inline void __sk_add_backlog(struct sock *sk, struct sk_buff *skb)
@@ -788,7 +788,7 @@ static inline __must_check int sk_add_backlog(struct sock *sk, struct sk_buff *s
 	return 0;
 }
 
-extern int __sk_backlog_rcv(struct sock *sk, struct sk_buff *skb);
+int __sk_backlog_rcv(struct sock *sk, struct sk_buff *skb);
 
 static inline int sk_backlog_rcv(struct sock *sk, struct sk_buff *skb)
 {
@@ -853,15 +853,15 @@ static inline void sock_rps_reset_rxhash(struct sock *sk)
 		__rc;							\
 	})
 
-extern int sk_stream_wait_connect(struct sock *sk, long *timeo_p);
-extern int sk_stream_wait_memory(struct sock *sk, long *timeo_p);
-extern void sk_stream_wait_close(struct sock *sk, long timeo_p);
-extern int sk_stream_error(struct sock *sk, int flags, int err);
-extern void sk_stream_kill_queues(struct sock *sk);
-extern void sk_set_memalloc(struct sock *sk);
-extern void sk_clear_memalloc(struct sock *sk);
+int sk_stream_wait_connect(struct sock *sk, long *timeo_p);
+int sk_stream_wait_memory(struct sock *sk, long *timeo_p);
+void sk_stream_wait_close(struct sock *sk, long timeo_p);
+int sk_stream_error(struct sock *sk, int flags, int err);
+void sk_stream_kill_queues(struct sock *sk);
+void sk_set_memalloc(struct sock *sk);
+void sk_clear_memalloc(struct sock *sk);
 
-extern int sk_wait_data(struct sock *sk, long *timeo);
+int sk_wait_data(struct sock *sk, long *timeo);
 
 struct request_sock_ops;
 struct timewait_sock_ops;
@@ -1031,8 +1031,8 @@ struct cg_proto {
 	struct mem_cgroup	*memcg;
 };
 
-extern int proto_register(struct proto *prot, int alloc_slab);
-extern void proto_unregister(struct proto *prot);
+int proto_register(struct proto *prot, int alloc_slab);
+void proto_unregister(struct proto *prot);
 
 static inline bool memcg_proto_active(struct cg_proto *cg_proto)
 {
@@ -1287,8 +1287,8 @@ proto_memory_pressure(struct proto *prot)
 
 #ifdef CONFIG_PROC_FS
 /* Called with local bh disabled */
-extern void sock_prot_inuse_add(struct net *net, struct proto *prot, int inc);
-extern int sock_prot_inuse_get(struct net *net, struct proto *proto);
+void sock_prot_inuse_add(struct net *net, struct proto *prot, int inc);
+int sock_prot_inuse_get(struct net *net, struct proto *proto);
 #else
 static inline void sock_prot_inuse_add(struct net *net, struct proto *prot,
 		int inc)
@@ -1364,8 +1364,8 @@ static inline struct inode *SOCK_INODE(struct socket *socket)
 /*
  * Functions for memory accounting
  */
-extern int __sk_mem_schedule(struct sock *sk, int size, int kind);
-extern void __sk_mem_reclaim(struct sock *sk);
+int __sk_mem_schedule(struct sock *sk, int size, int kind);
+void __sk_mem_reclaim(struct sock *sk);
 
 #define SK_MEM_QUANTUM ((int)PAGE_SIZE)
 #define SK_MEM_QUANTUM_SHIFT ilog2(SK_MEM_QUANTUM)
@@ -1473,14 +1473,14 @@ do {									\
 	lockdep_init_map(&(sk)->sk_lock.dep_map, (name), (key), 0);	\
 } while (0)
 
-extern void lock_sock_nested(struct sock *sk, int subclass);
+void lock_sock_nested(struct sock *sk, int subclass);
 
 static inline void lock_sock(struct sock *sk)
 {
 	lock_sock_nested(sk, 0);
 }
 
-extern void release_sock(struct sock *sk);
+void release_sock(struct sock *sk);
 
 /* BH context may only use the following locking interface. */
 #define bh_lock_sock(__sk)	spin_lock(&((__sk)->sk_lock.slock))
@@ -1489,7 +1489,7 @@ extern void release_sock(struct sock *sk);
 				SINGLE_DEPTH_NESTING)
 #define bh_unlock_sock(__sk)	spin_unlock(&((__sk)->sk_lock.slock))
 
-extern bool lock_sock_fast(struct sock *sk);
+bool lock_sock_fast(struct sock *sk);
 /**
  * unlock_sock_fast - complement of lock_sock_fast
  * @sk: socket
@@ -1507,108 +1507,84 @@ static inline void unlock_sock_fast(struct sock *sk, bool slow)
 }
 
 
-extern struct sock		*sk_alloc(struct net *net, int family,
-					  gfp_t priority,
-					  struct proto *prot);
-extern void			sk_free(struct sock *sk);
-extern void			sk_release_kernel(struct sock *sk);
-extern struct sock		*sk_clone_lock(const struct sock *sk,
-					       const gfp_t priority);
-
-extern struct sk_buff		*sock_wmalloc(struct sock *sk,
-					      unsigned long size, int force,
-					      gfp_t priority);
-extern struct sk_buff		*sock_rmalloc(struct sock *sk,
-					      unsigned long size, int force,
-					      gfp_t priority);
-extern void			sock_wfree(struct sk_buff *skb);
-extern void			skb_orphan_partial(struct sk_buff *skb);
-extern void			sock_rfree(struct sk_buff *skb);
-extern void			sock_edemux(struct sk_buff *skb);
-
-extern int			sock_setsockopt(struct socket *sock, int level,
-						int op, char __user *optval,
-						unsigned int optlen);
-
-extern int			sock_getsockopt(struct socket *sock, int level,
-						int op, char __user *optval,
-						int __user *optlen);
-extern struct sk_buff		*sock_alloc_send_skb(struct sock *sk,
-						     unsigned long size,
-						     int noblock,
-						     int *errcode);
-extern struct sk_buff		*sock_alloc_send_pskb(struct sock *sk,
-						      unsigned long header_len,
-						      unsigned long data_len,
-						      int noblock,
-						      int *errcode,
-						      int max_page_order);
-extern void *sock_kmalloc(struct sock *sk, int size,
-			  gfp_t priority);
-extern void sock_kfree_s(struct sock *sk, void *mem, int size);
-extern void sk_send_sigurg(struct sock *sk);
+struct sock *sk_alloc(struct net *net, int family, gfp_t priority,
+		      struct proto *prot);
+void sk_free(struct sock *sk);
+void sk_release_kernel(struct sock *sk);
+struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority);
+
+struct sk_buff *sock_wmalloc(struct sock *sk, unsigned long size, int force,
+			     gfp_t priority);
+struct sk_buff *sock_rmalloc(struct sock *sk, unsigned long size, int force,
+			     gfp_t priority);
+void sock_wfree(struct sk_buff *skb);
+void skb_orphan_partial(struct sk_buff *skb);
+void sock_rfree(struct sk_buff *skb);
+void sock_edemux(struct sk_buff *skb);
+
+int sock_setsockopt(struct socket *sock, int level, int op,
+		    char __user *optval, unsigned int optlen);
+
+int sock_getsockopt(struct socket *sock, int level, int op,
+		    char __user *optval, int __user *optlen);
+struct sk_buff *sock_alloc_send_skb(struct sock *sk, unsigned long size,
+				    int noblock, int *errcode);
+struct sk_buff *sock_alloc_send_pskb(struct sock *sk, unsigned long header_len,
+				     unsigned long data_len, int noblock,
+				     int *errcode, int max_page_order);
+void *sock_kmalloc(struct sock *sk, int size, gfp_t priority);
+void sock_kfree_s(struct sock *sk, void *mem, int size);
+void sk_send_sigurg(struct sock *sk);
 
 /*
  * Functions to fill in entries in struct proto_ops when a protocol
  * does not implement a particular function.
  */
-extern int                      sock_no_bind(struct socket *,
-					     struct sockaddr *, int);
-extern int                      sock_no_connect(struct socket *,
-						struct sockaddr *, int, int);
-extern int                      sock_no_socketpair(struct socket *,
-						   struct socket *);
-extern int                      sock_no_accept(struct socket *,
-					       struct socket *, int);
-extern int                      sock_no_getname(struct socket *,
-						struct sockaddr *, int *, int);
-extern unsigned int             sock_no_poll(struct file *, struct socket *,
-					     struct poll_table_struct *);
-extern int                      sock_no_ioctl(struct socket *, unsigned int,
-					      unsigned long);
-extern int			sock_no_listen(struct socket *, int);
-extern int                      sock_no_shutdown(struct socket *, int);
-extern int			sock_no_getsockopt(struct socket *, int , int,
-						   char __user *, int __user *);
-extern int			sock_no_setsockopt(struct socket *, int, int,
-						   char __user *, unsigned int);
-extern int                      sock_no_sendmsg(struct kiocb *, struct socket *,
-						struct msghdr *, size_t);
-extern int                      sock_no_recvmsg(struct kiocb *, struct socket *,
-						struct msghdr *, size_t, int);
-extern int			sock_no_mmap(struct file *file,
-					     struct socket *sock,
-					     struct vm_area_struct *vma);
-extern ssize_t			sock_no_sendpage(struct socket *sock,
-						struct page *page,
-						int offset, size_t size,
-						int flags);
+int sock_no_bind(struct socket *, struct sockaddr *, int);
+int sock_no_connect(struct socket *, struct sockaddr *, int, int);
+int sock_no_socketpair(struct socket *, struct socket *);
+int sock_no_accept(struct socket *, struct socket *, int);
+int sock_no_getname(struct socket *, struct sockaddr *, int *, int);
+unsigned int sock_no_poll(struct file *, struct socket *,
+			  struct poll_table_struct *);
+int sock_no_ioctl(struct socket *, unsigned int, unsigned long);
+int sock_no_listen(struct socket *, int);
+int sock_no_shutdown(struct socket *, int);
+int sock_no_getsockopt(struct socket *, int , int, char __user *, int __user *);
+int sock_no_setsockopt(struct socket *, int, int, char __user *, unsigned int);
+int sock_no_sendmsg(struct kiocb *, struct socket *, struct msghdr *, size_t);
+int sock_no_recvmsg(struct kiocb *, struct socket *, struct msghdr *, size_t,
+		    int);
+int sock_no_mmap(struct file *file, struct socket *sock,
+		 struct vm_area_struct *vma);
+ssize_t sock_no_sendpage(struct socket *sock, struct page *page, int offset,
+			 size_t size, int flags);
 
 /*
  * Functions to fill in entries in struct proto_ops when a protocol
  * uses the inet style.
  */
-extern int sock_common_getsockopt(struct socket *sock, int level, int optname,
+int sock_common_getsockopt(struct socket *sock, int level, int optname,
 				  char __user *optval, int __user *optlen);
-extern int sock_common_recvmsg(struct kiocb *iocb, struct socket *sock,
+int sock_common_recvmsg(struct kiocb *iocb, struct socket *sock,
 			       struct msghdr *msg, size_t size, int flags);
-extern int sock_common_setsockopt(struct socket *sock, int level, int optname,
+int sock_common_setsockopt(struct socket *sock, int level, int optname,
 				  char __user *optval, unsigned int optlen);
-extern int compat_sock_common_getsockopt(struct socket *sock, int level,
+int compat_sock_common_getsockopt(struct socket *sock, int level,
 		int optname, char __user *optval, int __user *optlen);
-extern int compat_sock_common_setsockopt(struct socket *sock, int level,
+int compat_sock_common_setsockopt(struct socket *sock, int level,
 		int optname, char __user *optval, unsigned int optlen);
 
-extern void sk_common_release(struct sock *sk);
+void sk_common_release(struct sock *sk);
 
 /*
  *	Default socket callbacks and setup code
  */
 
 /* Initialise core socket variables */
-extern void sock_init_data(struct socket *sock, struct sock *sk);
+void sock_init_data(struct socket *sock, struct sock *sk);
 
-extern void sk_filter_release_rcu(struct rcu_head *rcu);
+void sk_filter_release_rcu(struct rcu_head *rcu);
 
 /**
  *	sk_filter_release - release a socket filter
@@ -1669,8 +1645,7 @@ static inline void sock_put(struct sock *sk)
 		sk_free(sk);
 }
 
-extern int sk_receive_skb(struct sock *sk, struct sk_buff *skb,
-			  const int nested);
+int sk_receive_skb(struct sock *sk, struct sk_buff *skb, const int nested);
 
 static inline void sk_tx_queue_set(struct sock *sk, int tx_queue)
 {
@@ -1724,8 +1699,8 @@ static inline void sock_graft(struct sock *sk, struct socket *parent)
 	write_unlock_bh(&sk->sk_callback_lock);
 }
 
-extern kuid_t sock_i_uid(struct sock *sk);
-extern unsigned long sock_i_ino(struct sock *sk);
+kuid_t sock_i_uid(struct sock *sk);
+unsigned long sock_i_ino(struct sock *sk);
 
 static inline struct dst_entry *
 __sk_dst_get(struct sock *sk)
@@ -1747,7 +1722,7 @@ sk_dst_get(struct sock *sk)
 	return dst;
 }
 
-extern void sk_reset_txq(struct sock *sk);
+void sk_reset_txq(struct sock *sk);
 
 static inline void dst_negative_advice(struct sock *sk)
 {
@@ -1800,16 +1775,16 @@ sk_dst_reset(struct sock *sk)
 	spin_unlock(&sk->sk_dst_lock);
 }
 
-extern struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie);
+struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie);
 
-extern struct dst_entry *sk_dst_check(struct sock *sk, u32 cookie);
+struct dst_entry *sk_dst_check(struct sock *sk, u32 cookie);
 
 static inline bool sk_can_gso(const struct sock *sk)
 {
 	return net_gso_ok(sk->sk_route_caps, sk->sk_gso_type);
 }
 
-extern void sk_setup_caps(struct sock *sk, struct dst_entry *dst);
+void sk_setup_caps(struct sock *sk, struct dst_entry *dst);
 
 static inline void sk_nocaps_add(struct sock *sk, netdev_features_t flags)
 {
@@ -2022,14 +1997,14 @@ static inline void skb_set_owner_r(struct sk_buff *skb, struct sock *sk)
 	sk_mem_charge(sk, skb->truesize);
 }
 
-extern void sk_reset_timer(struct sock *sk, struct timer_list *timer,
-			   unsigned long expires);
+void sk_reset_timer(struct sock *sk, struct timer_list *timer,
+		    unsigned long expires);
 
-extern void sk_stop_timer(struct sock *sk, struct timer_list *timer);
+void sk_stop_timer(struct sock *sk, struct timer_list *timer);
 
-extern int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);
+int sock_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);
 
-extern int sock_queue_err_skb(struct sock *sk, struct sk_buff *skb);
+int sock_queue_err_skb(struct sock *sk, struct sk_buff *skb);
 
 /*
  *	Recover an error report and clear atomically
@@ -2097,7 +2072,7 @@ static inline struct page_frag *sk_page_frag(struct sock *sk)
 	return &sk->sk_frag;
 }
 
-extern bool sk_page_frag_refill(struct sock *sk, struct page_frag *pfrag);
+bool sk_page_frag_refill(struct sock *sk, struct page_frag *pfrag);
 
 /*
  *	Default write policy as shown to user space via poll/select/SIGIO
@@ -2135,10 +2110,10 @@ static inline int sock_intr_errno(long timeo)
 	return timeo == MAX_SCHEDULE_TIMEOUT ? -ERESTARTSYS : -EINTR;
 }
 
-extern void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
-	struct sk_buff *skb);
-extern void __sock_recv_wifi_status(struct msghdr *msg, struct sock *sk,
-	struct sk_buff *skb);
+void __sock_recv_timestamp(struct msghdr *msg, struct sock *sk,
+			   struct sk_buff *skb);
+void __sock_recv_wifi_status(struct msghdr *msg, struct sock *sk,
+			     struct sk_buff *skb);
 
 static inline void
 sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
@@ -2171,8 +2146,8 @@ sock_recv_timestamp(struct msghdr *msg, struct sock *sk, struct sk_buff *skb)
 		__sock_recv_wifi_status(msg, sk, skb);
 }
 
-extern void __sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk,
-				     struct sk_buff *skb);
+void __sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk,
+			      struct sk_buff *skb);
 
 static inline void sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk,
 					  struct sk_buff *skb)
@@ -2197,7 +2172,7 @@ static inline void sock_recv_ts_and_drops(struct msghdr *msg, struct sock *sk,
  *
  * Currently only depends on SOCK_TIMESTAMPING* flags.
  */
-extern void sock_tx_timestamp(struct sock *sk, __u8 *tx_flags);
+void sock_tx_timestamp(struct sock *sk, __u8 *tx_flags);
 
 /**
  * sk_eat_skb - Release a skb if it is no longer needed
@@ -2261,11 +2236,11 @@ static inline struct sock *skb_steal_sock(struct sk_buff *skb)
 	return NULL;
 }
 
-extern void sock_enable_timestamp(struct sock *sk, int flag);
-extern int sock_get_timestamp(struct sock *, struct timeval __user *);
-extern int sock_get_timestampns(struct sock *, struct timespec __user *);
-extern int sock_recv_errqueue(struct sock *sk, struct msghdr *msg, int len,
-			      int level, int type);
+void sock_enable_timestamp(struct sock *sk, int flag);
+int sock_get_timestamp(struct sock *, struct timeval __user *);
+int sock_get_timestampns(struct sock *, struct timespec __user *);
+int sock_recv_errqueue(struct sock *sk, struct msghdr *msg, int len, int level,
+		       int type);
 
 /*
  *	Enable debug/info messages
-- 
cgit 


From f6982299f273b827c8fe80c4c34e9fcdf95af20d Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sun, 22 Sep 2013 10:32:27 -0700
Subject: stp.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/stp.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/net/stp.h b/include/net/stp.h
index ad447f105417..3af174d70d9e 100644
--- a/include/net/stp.h
+++ b/include/net/stp.h
@@ -8,7 +8,7 @@ struct stp_proto {
 	void		*data;
 };
 
-extern int stp_proto_register(const struct stp_proto *proto);
-extern void stp_proto_unregister(const struct stp_proto *proto);
+int stp_proto_register(const struct stp_proto *proto);
+void stp_proto_unregister(const struct stp_proto *proto);
 
 #endif /* _NET_STP_H */
-- 
cgit 


From 3f2b9c9cdf389e303b2273679af08aab5f153517 Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Tue, 17 Sep 2013 05:48:51 +0930
Subject: module: remove rmmod --wait option.

The option to wait for a module reference count to reach zero was in
the initial module implementation, but it was never supported in
modprobe (you had to use rmmod --wait).  After discussion with Lucas,
It has been deprecated (with a 10 second sleep) in kmod for the last
year.

This finally removes it: the flag will evoke a printk warning and a
normal (non-blocking) remove attempt.

Cc: Lucas De Marchi <lucas.de.marchi@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 include/linux/module.h |  3 ---
 kernel/module.c        | 46 ++++++++--------------------------------------
 2 files changed, 8 insertions(+), 41 deletions(-)

diff --git a/include/linux/module.h b/include/linux/module.h
index 05f2447f8c15..15cd6b1b211e 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -367,9 +367,6 @@ struct module
 	/* What modules do I depend on? */
 	struct list_head target_list;
 
-	/* Who is waiting for us to be unloaded */
-	struct task_struct *waiter;
-
 	/* Destruction function. */
 	void (*exit)(void);
 
diff --git a/kernel/module.c b/kernel/module.c
index dc582749fa13..947105fd4cab 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -644,8 +644,6 @@ static int module_unload_init(struct module *mod)
 
 	/* Hold reference count during initialization. */
 	__this_cpu_write(mod->refptr->incs, 1);
-	/* Backwards compatibility macros put refcount during init. */
-	mod->waiter = current;
 
 	return 0;
 }
@@ -771,16 +769,9 @@ static int __try_stop_module(void *_sref)
 
 static int try_stop_module(struct module *mod, int flags, int *forced)
 {
-	if (flags & O_NONBLOCK) {
-		struct stopref sref = { mod, flags, forced };
+	struct stopref sref = { mod, flags, forced };
 
-		return stop_machine(__try_stop_module, &sref, NULL);
-	} else {
-		/* We don't need to stop the machine for this. */
-		mod->state = MODULE_STATE_GOING;
-		synchronize_sched();
-		return 0;
-	}
+	return stop_machine(__try_stop_module, &sref, NULL);
 }
 
 unsigned long module_refcount(struct module *mod)
@@ -813,21 +804,6 @@ EXPORT_SYMBOL(module_refcount);
 /* This exists whether we can unload or not */
 static void free_module(struct module *mod);
 
-static void wait_for_zero_refcount(struct module *mod)
-{
-	/* Since we might sleep for some time, release the mutex first */
-	mutex_unlock(&module_mutex);
-	for (;;) {
-		pr_debug("Looking at refcount...\n");
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		if (module_refcount(mod) == 0)
-			break;
-		schedule();
-	}
-	current->state = TASK_RUNNING;
-	mutex_lock(&module_mutex);
-}
-
 SYSCALL_DEFINE2(delete_module, const char __user *, name_user,
 		unsigned int, flags)
 {
@@ -842,6 +818,11 @@ SYSCALL_DEFINE2(delete_module, const char __user *, name_user,
 		return -EFAULT;
 	name[MODULE_NAME_LEN-1] = '\0';
 
+	if (!(flags & O_NONBLOCK)) {
+		printk(KERN_WARNING
+		       "waiting module removal not supported: please upgrade");
+	}
+
 	if (mutex_lock_interruptible(&module_mutex) != 0)
 		return -EINTR;
 
@@ -859,8 +840,7 @@ SYSCALL_DEFINE2(delete_module, const char __user *, name_user,
 
 	/* Doing init or already dying? */
 	if (mod->state != MODULE_STATE_LIVE) {
-		/* FIXME: if (force), slam module count and wake up
-                   waiter --RR */
+		/* FIXME: if (force), slam module count damn the torpedoes */
 		pr_debug("%s already dying\n", mod->name);
 		ret = -EBUSY;
 		goto out;
@@ -876,18 +856,11 @@ SYSCALL_DEFINE2(delete_module, const char __user *, name_user,
 		}
 	}
 
-	/* Set this up before setting mod->state */
-	mod->waiter = current;
-
 	/* Stop the machine so refcounts can't move and disable module. */
 	ret = try_stop_module(mod, flags, &forced);
 	if (ret != 0)
 		goto out;
 
-	/* Never wait if forced. */
-	if (!forced && module_refcount(mod) != 0)
-		wait_for_zero_refcount(mod);
-
 	mutex_unlock(&module_mutex);
 	/* Final destruction now no one is using it. */
 	if (mod->exit != NULL)
@@ -1005,9 +978,6 @@ void module_put(struct module *module)
 		__this_cpu_inc(module->refptr->decs);
 
 		trace_module_put(module, _RET_IP_);
-		/* Maybe they're waiting for us to drop reference? */
-		if (unlikely(!module_is_live(module)))
-			wake_up_process(module->waiter);
 		preempt_enable();
 	}
 }
-- 
cgit 


From eed380f3f5933edb8f4c055ba34ae7908ed38565 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Mon, 23 Sep 2013 15:23:54 +0930
Subject: modpost: Optionally ignore secondary errors seen if a single module
 build fails

Commit ea4054a23 (modpost: handle huge numbers of modules) added
support for building a large number of modules.

Unfortunately, the commit changed the semantics of the makefile: Instead of
passing only existing object files to modpost, make now passes all expected
object files. If make was started with option -i, this results in a modpost
error if a single file failed to build.

Example with the current btrfs build falure on m68k:

fs/btrfs/btrfs.o: No such file or directory
make[1]: [__modpost] Error 1 (ignored)

This error is followed by lots of errors such as:

m68k-linux-gcc: error: arch/m68k/emu/nfcon.mod.c: No such file or directory
m68k-linux-gcc: fatal error: no input files
compilation terminated.
make[1]: [arch/m68k/emu/nfcon.mod.o] Error 1 (ignored)

This doesn't matter much for normal builds, but it is annoying for builds
started with "make -i" due to the large number of secondary errors.
Those errors unnececessarily clog any error log and make it difficult
to find the real errors in the build.

Fix the problem by adding a new parameter '-n' to modpost. If this parameter
is specified, modpost reports but ignores missing object files.

With this patch, error output from above problem is (with make -i):

m68k-linux-ld: cannot find fs/btrfs/ioctl.o: No such file or directory
make[2]: [fs/btrfs/btrfs.o] Error 1 (ignored)
...
fs/btrfs/btrfs.o: No such file or directory (ignored)

Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Michael Marek <mmarek@suse.cz>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 scripts/Makefile.modpost |  4 +++-
 scripts/mod/modpost.c    | 13 ++++++++++++-
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
index 8dcdca27d836..69f0a1417e9a 100644
--- a/scripts/Makefile.modpost
+++ b/scripts/Makefile.modpost
@@ -79,9 +79,11 @@ modpost = scripts/mod/modpost                    \
  $(if $(CONFIG_DEBUG_SECTION_MISMATCH),,-S)      \
  $(if $(KBUILD_EXTMOD)$(KBUILD_MODPOST_WARN),-w)
 
+MODPOST_OPT=$(subst -i,-n,$(filter -i,$(MAKEFLAGS)))
+
 # We can go over command line length here, so be careful.
 quiet_cmd_modpost = MODPOST $(words $(filter-out vmlinux FORCE, $^)) modules
-      cmd_modpost = $(MODLISTCMD) | sed 's/\.ko$$/.o/' | $(modpost) -s -T -
+      cmd_modpost = $(MODLISTCMD) | sed 's/\.ko$$/.o/' | $(modpost) $(MODPOST_OPT) -s -T -
 
 PHONY += __modpost
 __modpost: $(modules:.ko=.o) FORCE
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 8247979e8f64..393706b37774 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -17,6 +17,7 @@
 #include <string.h>
 #include <limits.h>
 #include <stdbool.h>
+#include <errno.h>
 #include "modpost.h"
 #include "../../include/generated/autoconf.h"
 #include "../../include/linux/license.h"
@@ -37,6 +38,8 @@ static int warn_unresolved = 0;
 /* How a symbol is exported */
 static int sec_mismatch_count = 0;
 static int sec_mismatch_verbose = 1;
+/* ignore missing files */
+static int ignore_missing_files;
 
 enum export {
 	export_plain,      export_unused,     export_gpl,
@@ -407,6 +410,11 @@ static int parse_elf(struct elf_info *info, const char *filename)
 
 	hdr = grab_file(filename, &info->size);
 	if (!hdr) {
+		if (ignore_missing_files) {
+			fprintf(stderr, "%s: %s (ignored)\n", filename,
+				strerror(errno));
+			return 0;
+		}
 		perror(filename);
 		exit(1);
 	}
@@ -2119,7 +2127,7 @@ int main(int argc, char **argv)
 	struct ext_sym_list *extsym_iter;
 	struct ext_sym_list *extsym_start = NULL;
 
-	while ((opt = getopt(argc, argv, "i:I:e:msST:o:awM:K:")) != -1) {
+	while ((opt = getopt(argc, argv, "i:I:e:mnsST:o:awM:K:")) != -1) {
 		switch (opt) {
 		case 'i':
 			kernel_read = optarg;
@@ -2139,6 +2147,9 @@ int main(int argc, char **argv)
 		case 'm':
 			modversions = 1;
 			break;
+		case 'n':
+			ignore_missing_files = 1;
+			break;
 		case 'o':
 			dump_write = optarg;
 			break;
-- 
cgit 


From 891070003999e7ac8881bba6f8242615382742eb Mon Sep 17 00:00:00 2001
From: Aaron Lu <aaron.lu@intel.com>
Date: Tue, 17 Sep 2013 09:25:23 +0930
Subject: virtio: pm: use CONFIG_PM_SLEEP instead of CONFIG_PM

The freeze and restore functions defined in virtio drivers are used
for suspend and hibernate, so CONFIG_PM_SLEEP is more appropriate than
CONFIG_PM. This patch replace all CONFIG_PM with CONFIG_PM_SLEEP for
virtio drivers that implement freeze and restore callbacks.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 drivers/block/virtio_blk.c          | 4 ++--
 drivers/char/hw_random/virtio-rng.c | 4 ++--
 drivers/char/virtio_console.c       | 4 ++--
 drivers/net/virtio_net.c            | 4 ++--
 drivers/scsi/virtio_scsi.c          | 4 ++--
 drivers/virtio/virtio_balloon.c     | 4 ++--
 6 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 5cdf88b7ad9e..89245b5adca1 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -899,7 +899,7 @@ static void virtblk_remove(struct virtio_device *vdev)
 		ida_simple_remove(&vd_index_ida, index);
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int virtblk_freeze(struct virtio_device *vdev)
 {
 	struct virtio_blk *vblk = vdev->priv;
@@ -959,7 +959,7 @@ static struct virtio_driver virtio_blk = {
 	.probe			= virtblk_probe,
 	.remove			= virtblk_remove,
 	.config_changed		= virtblk_config_changed,
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 	.freeze			= virtblk_freeze,
 	.restore		= virtblk_restore,
 #endif
diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c
index ef46a9cfd832..c12398d1517c 100644
--- a/drivers/char/hw_random/virtio-rng.c
+++ b/drivers/char/hw_random/virtio-rng.c
@@ -133,7 +133,7 @@ static void virtrng_remove(struct virtio_device *vdev)
 	remove_common(vdev);
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int virtrng_freeze(struct virtio_device *vdev)
 {
 	remove_common(vdev);
@@ -157,7 +157,7 @@ static struct virtio_driver virtio_rng_driver = {
 	.id_table =	id_table,
 	.probe =	virtrng_probe,
 	.remove =	virtrng_remove,
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 	.freeze =	virtrng_freeze,
 	.restore =	virtrng_restore,
 #endif
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index b79cf3e1b793..862fd54a0ffb 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -2142,7 +2142,7 @@ static struct virtio_device_id rproc_serial_id_table[] = {
 static unsigned int rproc_serial_features[] = {
 };
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int virtcons_freeze(struct virtio_device *vdev)
 {
 	struct ports_device *portdev;
@@ -2220,7 +2220,7 @@ static struct virtio_driver virtio_console = {
 	.probe =	virtcons_probe,
 	.remove =	virtcons_remove,
 	.config_changed = config_intr,
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 	.freeze =	virtcons_freeze,
 	.restore =	virtcons_restore,
 #endif
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index defec2b3c5a4..2ad3d96d4a7c 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -1683,7 +1683,7 @@ static void virtnet_remove(struct virtio_device *vdev)
 	free_netdev(vi->dev);
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int virtnet_freeze(struct virtio_device *vdev)
 {
 	struct virtnet_info *vi = vdev->priv;
@@ -1766,7 +1766,7 @@ static struct virtio_driver virtio_net_driver = {
 	.probe =	virtnet_probe,
 	.remove =	virtnet_remove,
 	.config_changed = virtnet_config_changed,
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 	.freeze =	virtnet_freeze,
 	.restore =	virtnet_restore,
 #endif
diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index 74b88efde6ad..2a110391f8ce 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -954,7 +954,7 @@ static void virtscsi_remove(struct virtio_device *vdev)
 	scsi_host_put(shost);
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int virtscsi_freeze(struct virtio_device *vdev)
 {
 	virtscsi_remove_vqs(vdev);
@@ -988,7 +988,7 @@ static struct virtio_driver virtio_scsi_driver = {
 	.id_table = id_table,
 	.probe = virtscsi_probe,
 	.scan = virtscsi_scan,
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 	.freeze = virtscsi_freeze,
 	.restore = virtscsi_restore,
 #endif
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index 1f572c00a1be..d6f681641606 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -513,7 +513,7 @@ static void virtballoon_remove(struct virtio_device *vdev)
 	kfree(vb);
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int virtballoon_freeze(struct virtio_device *vdev)
 {
 	struct virtio_balloon *vb = vdev->priv;
@@ -556,7 +556,7 @@ static struct virtio_driver virtio_balloon_driver = {
 	.probe =	virtballoon_probe,
 	.remove =	virtballoon_remove,
 	.config_changed = virtballoon_changed,
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 	.freeze	=	virtballoon_freeze,
 	.restore =	virtballoon_restore,
 #endif
-- 
cgit 


From 62a83183c477759363b2228e6b64c17593d9e4be Mon Sep 17 00:00:00 2001
From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Sun, 22 Sep 2013 20:44:11 +0200
Subject: OMAPDSS: DISPC: Fix assignment of 0/1 to bool variables

Convert 0 to false and 1 to true when assigning values to bool
variables. Inspired by commit 3db1cd5c05f35fb43eb134df6f321de4e63141f2.

The simplified semantic patch that find this problem is as
follows (http://coccinelle.lip6.fr/):

@@
bool b;
@@
(
-b = 0
+b = false
|
-b = 1
+b = true
)

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dispc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 02a7340111df..8fbeb299fac3 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2352,7 +2352,7 @@ int dispc_ovl_check(enum omap_plane plane, enum omap_channel channel,
 {
 	enum omap_overlay_caps caps = dss_feat_get_overlay_caps(plane);
 	bool five_taps = true;
-	bool fieldmode = 0;
+	bool fieldmode = false;
 	u16 in_height = oi->height;
 	u16 in_width = oi->width;
 	bool ilace = timings->interlace;
@@ -2365,7 +2365,7 @@ int dispc_ovl_check(enum omap_plane plane, enum omap_channel channel,
 	out_height = oi->out_height == 0 ? oi->height : oi->out_height;
 
 	if (ilace && oi->height == out_height)
-		fieldmode = 1;
+		fieldmode = true;
 
 	if (ilace) {
 		if (fieldmode)
@@ -2396,7 +2396,7 @@ static int dispc_ovl_setup_common(enum omap_plane plane,
 		bool mem_to_mem)
 {
 	bool five_taps = true;
-	bool fieldmode = 0;
+	bool fieldmode = false;
 	int r, cconv = 0;
 	unsigned offset0, offset1;
 	s32 row_inc;
@@ -2417,7 +2417,7 @@ static int dispc_ovl_setup_common(enum omap_plane plane,
 	out_height = out_height == 0 ? height : out_height;
 
 	if (ilace && height == out_height)
-		fieldmode = 1;
+		fieldmode = true;
 
 	if (ilace) {
 		if (fieldmode)
-- 
cgit 


From 9d7278d0b4238575739a96f64fb14b30ed0589b5 Mon Sep 17 00:00:00 2001
From: Sonic Zhang <sonic.zhang@analog.com>
Date: Mon, 23 Sep 2013 11:57:00 +0800
Subject: pinctrl: pinctrl-adi2: Add dependency to arch BLACKFIN in Kconfig.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index f45a21c57e0e..21db2013543b 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -51,6 +51,7 @@ config PINCTRL_AB8505
 
 config PINCTRL_ADI2
 	bool "ADI pin controller driver"
+	depends on BLACKFIN
 	select PINMUX
 	select IRQ_DOMAIN
 	help
-- 
cgit 


From 7330e345eefedce7675aa5974dd5e79ef1e4fa32 Mon Sep 17 00:00:00 2001
From: Sonic Zhang <sonic.zhang@analog.com>
Date: Mon, 23 Sep 2013 12:07:52 +0800
Subject: pinctrl: pinctrl-adi2-bf60x: remove useless and duplicated GPIO
 definition for PPI2.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-adi2-bf60x.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-adi2-bf60x.c b/drivers/pinctrl/pinctrl-adi2-bf60x.c
index e90cb80c8d0b..bf57aea2826c 100644
--- a/drivers/pinctrl/pinctrl-adi2-bf60x.c
+++ b/drivers/pinctrl/pinctrl-adi2-bf60x.c
@@ -236,8 +236,7 @@ static const unsigned ppi2_8b_pins[] = {
 static const unsigned ppi2_16b_pins[] = {
 	GPIO_PA0, GPIO_PA1, GPIO_PA2, GPIO_PA3, GPIO_PA4, GPIO_PA5, GPIO_PA6,
 	GPIO_PA7, GPIO_PA8, GPIO_PA9, GPIO_PA10, GPIO_PA11, GPIO_PA12,
-	GPIO_PA13, GPIO_PA14, GPIO_PA15,
-	GPIO_PA7, GPIO_PB0, GPIO_PB1, GPIO_PB2, GPIO_PB3,
+	GPIO_PA13, GPIO_PA14, GPIO_PA15, GPIO_PB0, GPIO_PB1, GPIO_PB2,
 };
 
 static const unsigned lp0_pins[] = {
-- 
cgit 


From 741ecef62a37bcc368ff8c7282f810327edc3d94 Mon Sep 17 00:00:00 2001
From: Sonic Zhang <sonic.zhang@analog.com>
Date: Tue, 3 Sep 2013 16:29:01 +0800
Subject: blackfin: pinctrl-adi2: Enable PINCTRL framework for BF54x and BF60x.

- Remove unused macro MAX_RESOURCES
- Override blackfin legacy peripheral pinmux request and free APIs by
devm_pinctrl_get_select_default() to init the peripheral portmux setting.

v3-chagnes:
- Move pinctrl soc data out of blackfin arch folder.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Acked-by: Steven Miao <realmz6@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/blackfin/Kconfig                           |  4 ++++
 arch/blackfin/include/asm/portmux.h             | 19 +++++++++++++++++--
 arch/blackfin/mach-bf548/include/mach/portmux.h |  2 --
 arch/blackfin/mach-bf609/include/mach/portmux.h |  2 --
 4 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index a1199b2e9d2b..74314bd8be39 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -324,6 +324,10 @@ config GPIO_ADI
 	def_bool y
 	depends on (BF51x || BF52x || BF53x || BF538 || BF539 || BF561)
 
+config PINCTRL
+	def_bool y
+	depends on BF54x || BF60x
+
 config MEM_MT48LC64M4A2FB_7E
 	bool
 	depends on (BFIN533_STAMP)
diff --git a/arch/blackfin/include/asm/portmux.h b/arch/blackfin/include/asm/portmux.h
index 9b1e2c37b324..7aa20436e799 100644
--- a/arch/blackfin/include/asm/portmux.h
+++ b/arch/blackfin/include/asm/portmux.h
@@ -17,14 +17,29 @@
 #define P_MAYSHARE	0x2000
 #define P_DONTCARE	0x1000
 
-
+#ifdef CONFIG_PINCTRL
+#include <asm/irq_handler.h>
+
+#define gpio_pint_regs bfin_pint_regs
+#define adi_internal_set_wake bfin_internal_set_wake
+
+#define peripheral_request(per, label) 0
+#define peripheral_free(per)
+#define peripheral_request_list(per, label) \
+	(pdev ? (IS_ERR(devm_pinctrl_get_select_default(&pdev->dev)) \
+	? -EINVAL : 0) : 0)
+#define peripheral_free_list(per)
+#else
 int peripheral_request(unsigned short per, const char *label);
 void peripheral_free(unsigned short per);
 int peripheral_request_list(const unsigned short per[], const char *label);
 void peripheral_free_list(const unsigned short per[]);
+#endif
 
-#include <asm/gpio.h>
+#include <linux/err.h>
+#include <linux/pinctrl/pinctrl.h>
 #include <mach/portmux.h>
+#include <linux/gpio.h>
 
 #ifndef P_SPORT2_TFS
 #define P_SPORT2_TFS P_UNDEF
diff --git a/arch/blackfin/mach-bf548/include/mach/portmux.h b/arch/blackfin/mach-bf548/include/mach/portmux.h
index e22246202730..d9f8632d7d09 100644
--- a/arch/blackfin/mach-bf548/include/mach/portmux.h
+++ b/arch/blackfin/mach-bf548/include/mach/portmux.h
@@ -7,8 +7,6 @@
 #ifndef _MACH_PORTMUX_H_
 #define _MACH_PORTMUX_H_
 
-#define MAX_RESOURCES	MAX_BLACKFIN_GPIOS
-
 #define P_SPORT2_TFS	(P_DEFINED | P_IDENT(GPIO_PA0) | P_FUNCT(0))
 #define P_SPORT2_DTSEC	(P_DEFINED | P_IDENT(GPIO_PA1) | P_FUNCT(0))
 #define P_SPORT2_DTPRI	(P_DEFINED | P_IDENT(GPIO_PA2) | P_FUNCT(0))
diff --git a/arch/blackfin/mach-bf609/include/mach/portmux.h b/arch/blackfin/mach-bf609/include/mach/portmux.h
index 2e1a51c25098..fe34191eef0b 100644
--- a/arch/blackfin/mach-bf609/include/mach/portmux.h
+++ b/arch/blackfin/mach-bf609/include/mach/portmux.h
@@ -7,8 +7,6 @@
 #ifndef _MACH_PORTMUX_H_
 #define _MACH_PORTMUX_H_
 
-#define MAX_RESOURCES	MAX_BLACKFIN_GPIOS
-
 /* EMAC RMII Port Mux */
 #define P_MII0_MDC	(P_DEFINED | P_IDENT(GPIO_PC6) | P_FUNCT(0))
 #define P_MII0_MDIO	(P_DEFINED | P_IDENT(GPIO_PC7) | P_FUNCT(0))
-- 
cgit 


From cd64647f043e3fd3569bcf068f47f030198ff93a Mon Sep 17 00:00:00 2001
From: Li Zefan <lizefan@huawei.com>
Date: Mon, 23 Sep 2013 16:43:58 +0800
Subject: hung_task: Change sysctl_hung_task_check_count to 'int'

As 'sysctl_hung_task_check_count' is 'unsigned long' when this
value is assigned to max_count in check_hung_uninterruptible_tasks(),
it's truncated to 'int' type.

This causes a minor artifact: if we write 2^32 to sysctl.hung_task_check_count,
hung task detection will be effectively disabled.

With this fix, it will still truncate the user input to 32 bits, but
reading sysctl.hung_task_check_count reflects the actual truncated value.

Signed-off-by: Li Zefan <lizefan@huawei.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Link: http://lkml.kernel.org/r/523FFF4E.9050401@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/sched/sysctl.h | 2 +-
 kernel/hung_task.c           | 2 +-
 kernel/sysctl.c              | 5 +++--
 3 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h
index bf8086b2506e..9552afa733d8 100644
--- a/include/linux/sched/sysctl.h
+++ b/include/linux/sched/sysctl.h
@@ -2,8 +2,8 @@
 #define _SCHED_SYSCTL_H
 
 #ifdef CONFIG_DETECT_HUNG_TASK
+extern int	     sysctl_hung_task_check_count;
 extern unsigned int  sysctl_hung_task_panic;
-extern unsigned long sysctl_hung_task_check_count;
 extern unsigned long sysctl_hung_task_timeout_secs;
 extern unsigned long sysctl_hung_task_warnings;
 extern int proc_dohung_task_timeout_secs(struct ctl_table *table, int write,
diff --git a/kernel/hung_task.c b/kernel/hung_task.c
index 3e97fb126e6b..042252383fd2 100644
--- a/kernel/hung_task.c
+++ b/kernel/hung_task.c
@@ -20,7 +20,7 @@
 /*
  * The number of tasks checked:
  */
-unsigned long __read_mostly sysctl_hung_task_check_count = PID_MAX_LIMIT;
+int __read_mostly sysctl_hung_task_check_count = PID_MAX_LIMIT;
 
 /*
  * Limit number of tasks checked in a batch.
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index b2f06f3c6a3f..b24ed7f87a14 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -962,9 +962,10 @@ static struct ctl_table kern_table[] = {
 	{
 		.procname	= "hung_task_check_count",
 		.data		= &sysctl_hung_task_check_count,
-		.maxlen		= sizeof(unsigned long),
+		.maxlen		= sizeof(int),
 		.mode		= 0644,
-		.proc_handler	= proc_doulongvec_minmax,
+		.proc_handler	= proc_dointvec_minmax,
+		.extra1		= &zero,
 	},
 	{
 		.procname	= "hung_task_timeout_secs",
-- 
cgit 


From 49f1d6bc5add49be7c03d83386f931c224b1d2cb Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 19 Sep 2013 17:28:07 +0530
Subject: gpio: gpio-74x164: Remove redundant spi_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-74x164.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpio/gpio-74x164.c b/drivers/gpio/gpio-74x164.c
index 5d518d5db7a0..a51e893e0592 100644
--- a/drivers/gpio/gpio-74x164.c
+++ b/drivers/gpio/gpio-74x164.c
@@ -176,7 +176,6 @@ static int gen_74x164_probe(struct spi_device *spi)
 	return ret;
 
 exit_destroy:
-	spi_set_drvdata(spi, NULL);
 	mutex_destroy(&chip->lock);
 	return ret;
 }
@@ -190,8 +189,6 @@ static int gen_74x164_remove(struct spi_device *spi)
 	if (chip == NULL)
 		return -ENODEV;
 
-	spi_set_drvdata(spi, NULL);
-
 	ret = gpiochip_remove(&chip->gpio_chip);
 	if (!ret)
 		mutex_destroy(&chip->lock);
-- 
cgit 


From 187a53a5ebec6a5d14d57ca12eaa4a106397a134 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 19 Sep 2013 17:28:08 +0530
Subject: gpio: gpio-74x164: Remove redundant of_match_ptr

'gen_74x164_dt_ids' is always compiled in. Hence the macro is not
necessary.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-74x164.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-74x164.c b/drivers/gpio/gpio-74x164.c
index a51e893e0592..1e04bf91328d 100644
--- a/drivers/gpio/gpio-74x164.c
+++ b/drivers/gpio/gpio-74x164.c
@@ -209,7 +209,7 @@ static struct spi_driver gen_74x164_driver = {
 	.driver = {
 		.name		= "74x164",
 		.owner		= THIS_MODULE,
-		.of_match_table	= of_match_ptr(gen_74x164_dt_ids),
+		.of_match_table	= gen_74x164_dt_ids,
 	},
 	.probe		= gen_74x164_probe,
 	.remove		= gen_74x164_remove,
-- 
cgit 


From 8fa82b16304b5cdcddb929afbfebfddfb7adb716 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 19 Sep 2013 17:30:53 +0530
Subject: gpio: gpio-mc33880: Remove redundant spi_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-mc33880.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/gpio/gpio-mc33880.c b/drivers/gpio/gpio-mc33880.c
index 3fd2caa4a2e0..c0b7835f5136 100644
--- a/drivers/gpio/gpio-mc33880.c
+++ b/drivers/gpio/gpio-mc33880.c
@@ -142,7 +142,6 @@ static int mc33880_probe(struct spi_device *spi)
 	return ret;
 
 exit_destroy:
-	spi_set_drvdata(spi, NULL);
 	mutex_destroy(&mc->lock);
 	return ret;
 }
@@ -156,8 +155,6 @@ static int mc33880_remove(struct spi_device *spi)
 	if (mc == NULL)
 		return -ENODEV;
 
-	spi_set_drvdata(spi, NULL);
-
 	ret = gpiochip_remove(&mc->chip);
 	if (!ret)
 		mutex_destroy(&mc->lock);
-- 
cgit 


From e5304db8d7541c1338a6313ae951355b5a72cd19 Mon Sep 17 00:00:00 2001
From: Graeme Smecher <gsmecher@threespeedlogic.com>
Date: Fri, 13 Sep 2013 14:41:48 -0700
Subject: gpio: pca953x: Don't flip bits on PCA957x GPIO expanders when probing
 them.

The pca957x driver supports a handful of I2C GPIO expanders from NXP, Maxim,
and TI. For the PCA9574 and PCA9575 devices only, the driver resets the GPIO
level and direction in the pca957x_probe function. This seems like the wrong
thing to do, since it can cause hardware bit twiddles during warm reboots when
the chip state and reset values don't match.

This kind of initialization is best left upstream (in a bootloader) or
downstream (in userspace). It's also an inconsistency across devices supported
by this driver.

This patch is NOT boot-tested: the SoC I'm  using is stuck on 2.6.37, and the
patch doesn't apply trivially.

Signed-off-by: Graeme Smecher <gsmecher@threespeedlogic.com>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-pca953x.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/drivers/gpio/gpio-pca953x.c b/drivers/gpio/gpio-pca953x.c
index cdd1aa12b895..6e48c07e3d8c 100644
--- a/drivers/gpio/gpio-pca953x.c
+++ b/drivers/gpio/gpio-pca953x.c
@@ -683,17 +683,6 @@ static int device_pca957x_init(struct pca953x_chip *chip, u32 invert)
 	int ret;
 	u8 val[MAX_BANK];
 
-	/* Let every port in proper state, that could save power */
-	memset(val, 0, NBANK(chip));
-	pca953x_write_regs(chip, PCA957X_PUPD, val);
-	memset(val, 0xFF, NBANK(chip));
-	pca953x_write_regs(chip, PCA957X_CFG, val);
-	memset(val, 0, NBANK(chip));
-	pca953x_write_regs(chip, PCA957X_OUT, val);
-
-	ret = pca953x_read_regs(chip, PCA957X_IN, val);
-	if (ret)
-		goto out;
 	ret = pca953x_read_regs(chip, PCA957X_OUT, chip->reg_output);
 	if (ret)
 		goto out;
-- 
cgit 


From 043c998f95036e7fc796b240ab5ba49a8de36df3 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Fri, 20 Sep 2013 12:32:18 +0100
Subject: regulator: core: Fix return code for invalid parameters

We should be returning an error, a repeated call will never succeed.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 66ae12d12c10..ad154247bb90 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1288,7 +1288,7 @@ static struct regulator *_regulator_get(struct device *dev, const char *id,
 
 	if (id == NULL) {
 		pr_err("get() with no identifier\n");
-		return regulator;
+		return ERR_PTR(-EINVAL);
 	}
 
 	if (dev)
-- 
cgit 


From da5feefeda496f003a2e909762e72843cb9837a6 Mon Sep 17 00:00:00 2001
From: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Date: Fri, 20 Sep 2013 18:19:05 +0100
Subject: ASoC: Docs: Update codec documentation

Update the codec class driver documentation and bring it up to date
with the current code base. This includes API changes, regmap and
multi component.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 Documentation/sound/alsa/soc/codec.txt | 46 +++++++++++-----------------------
 1 file changed, 15 insertions(+), 31 deletions(-)

diff --git a/Documentation/sound/alsa/soc/codec.txt b/Documentation/sound/alsa/soc/codec.txt
index bce23a4a7875..db5f9c9ae149 100644
--- a/Documentation/sound/alsa/soc/codec.txt
+++ b/Documentation/sound/alsa/soc/codec.txt
@@ -1,22 +1,23 @@
-ASoC Codec Driver
-=================
+ASoC Codec Class Driver
+=======================
 
-The codec driver is generic and hardware independent code that configures the
-codec to provide audio capture and playback. It should contain no code that is
-specific to the target platform or machine. All platform and machine specific
-code should be added to the platform and machine drivers respectively.
+The codec class driver is generic and hardware independent code that configures
+the codec, FM, MODEM, BT or external DSP to provide audio capture and playback.
+It should contain no code that is specific to the target platform or machine.
+All platform and machine specific code should be added to the platform and
+machine drivers respectively.
 
-Each codec driver *must* provide the following features:-
+Each codec class driver *must* provide the following features:-
 
  1) Codec DAI and PCM configuration
- 2) Codec control IO - using I2C, 3 Wire(SPI) or both APIs
+ 2) Codec control IO - using RegMap API
  3) Mixers and audio controls
  4) Codec audio operations
+ 5) DAPM description.
+ 6) DAPM event handler.
 
 Optionally, codec drivers can also provide:-
 
- 5) DAPM description.
- 6) DAPM event handler.
  7) DAC Digital mute control.
 
 Its probably best to use this guide in conjunction with the existing codec
@@ -64,26 +65,9 @@ struct snd_soc_dai_driver wm8731_dai = {
 2 - Codec control IO
 --------------------
 The codec can usually be controlled via an I2C or SPI style interface
-(AC97 combines control with data in the DAI). The codec drivers provide
-functions to read and write the codec registers along with supplying a
-register cache:-
-
-	/* IO control data and register cache */
-	void *control_data; /* codec control (i2c/3wire) data */
-	void *reg_cache;
-
-Codec read/write should do any data formatting and call the hardware
-read write below to perform the IO. These functions are called by the
-core and ALSA when performing DAPM or changing the mixer:-
-
-    unsigned int (*read)(struct snd_soc_codec *, unsigned int);
-    int (*write)(struct snd_soc_codec *, unsigned int, unsigned int);
-
-Codec hardware IO functions - usually points to either the I2C, SPI or AC97
-read/write:-
-
-	hw_write_t hw_write;
-	hw_read_t hw_read;
+(AC97 combines control with data in the DAI). The codec driver should use the
+Regmap API for all codec IO. Please see include/linux/regmap.h and existing
+codec drivers for example regmap usage.
 
 
 3 - Mixers and audio controls
@@ -127,7 +111,7 @@ Defines a stereo enumerated control
 
 4 - Codec Audio Operations
 --------------------------
-The codec driver also supports the following ALSA operations:-
+The codec driver also supports the following ALSA PCM operations:-
 
 /* SoC audio ops */
 struct snd_soc_ops {
-- 
cgit 


From 3eb012834b28585a37fe0684182828efc1ab0512 Mon Sep 17 00:00:00 2001
From: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Date: Fri, 20 Sep 2013 18:19:06 +0100
Subject: ASoC: Docs: Platform update

Update the platform class driver documentation and bring it up to date
with the current code base. This includes multi component and DSP.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 Documentation/sound/alsa/soc/platform.txt | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/Documentation/sound/alsa/soc/platform.txt b/Documentation/sound/alsa/soc/platform.txt
index d57efad37e0a..3a08a2c9150c 100644
--- a/Documentation/sound/alsa/soc/platform.txt
+++ b/Documentation/sound/alsa/soc/platform.txt
@@ -1,9 +1,9 @@
 ASoC Platform Driver
 ====================
 
-An ASoC platform driver can be divided into audio DMA and SoC DAI configuration
-and control. The platform drivers only target the SoC CPU and must have no board
-specific code.
+An ASoC platform driver class can be divided into audio DMA drivers, SoC DAI
+drivers and DSP drivers. The platform drivers only target the SoC CPU and must
+have no board specific code.
 
 Audio DMA
 =========
@@ -64,3 +64,16 @@ Each SoC DAI driver must provide the following features:-
  5) Suspend and resume (optional)
 
 Please see codec.txt for a description of items 1 - 4.
+
+
+SoC DSP Drivers
+===============
+
+Each SoC DSP driver usually supplies the following features :-
+
+ 1) DAPM graph
+ 2) Mixer controls
+ 3) DMA IO to/from DSP buffers (if applicable)
+ 4) Definition of DSP front end (FE) PCM devices.
+
+Please see DPCM.txt for a description of item 4.
-- 
cgit 


From 630a1b3b4f0bb40c84c1fde4fec0d97de62ccdac Mon Sep 17 00:00:00 2001
From: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Date: Fri, 20 Sep 2013 18:19:07 +0100
Subject: ASoC: Docs: update DAPM

Update the DAPM documentation and bring it up to date with the current
code base. This includes API changes and new widgets.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 Documentation/sound/alsa/soc/dapm.txt | 71 ++++++++++++++++++++---------------
 1 file changed, 41 insertions(+), 30 deletions(-)

diff --git a/Documentation/sound/alsa/soc/dapm.txt b/Documentation/sound/alsa/soc/dapm.txt
index 05bf5a0eee41..7dfd88ce31ac 100644
--- a/Documentation/sound/alsa/soc/dapm.txt
+++ b/Documentation/sound/alsa/soc/dapm.txt
@@ -21,7 +21,7 @@ level power systems.
 
 There are 4 power domains within DAPM
 
-   1. Codec domain - VREF, VMID (core codec and audio power)
+   1. Codec bias domain - VREF, VMID (core codec and audio power)
       Usually controlled at codec probe/remove and suspend/resume, although
       can be set at stream time if power is not needed for sidetone, etc.
 
@@ -63,14 +63,22 @@ Audio DAPM widgets fall into a number of types:-
  o Line       - Line Input/Output (and optional Jack)
  o Speaker    - Speaker
  o Supply     - Power or clock supply widget used by other widgets.
+ o Regulator  - External regulator that supplies power to audio components.
+ o Clock      -	External clock that supplies clock to audio componnents.
+ o AIF IN     - Audio Interface Input (with TDM slot mask).
+ o AIF OUT    - Audio Interface Output (with TDM slot mask).
+ o Siggen     - Signal Generator.
+ o DAI IN     - Digital Audio Interface Input.
+ o DAI OUT    - Digital Audio Interface Output.
+ o DAI Link   - DAI Link between two DAI structures */
  o Pre        - Special PRE widget (exec before all others)
  o Post       - Special POST widget (exec after all others)
 
 (Widgets are defined in include/sound/soc-dapm.h)
 
-Widgets are usually added in the codec driver and the machine driver. There are
-convenience macros defined in soc-dapm.h that can be used to quickly build a
-list of widgets of the codecs and machines DAPM widgets.
+Widgets can be added to the sound card by any of the component driver types.
+There are convenience macros defined in soc-dapm.h that can be used to quickly
+build a list of widgets of the codecs and machines DAPM widgets.
 
 Most widgets have a name, register, shift and invert. Some widgets have extra
 parameters for stream name and kcontrols.
@@ -80,11 +88,13 @@ parameters for stream name and kcontrols.
 -------------------------
 
 Stream Widgets relate to the stream power domain and only consist of ADCs
-(analog to digital converters) and DACs (digital to analog converters).
+(analog to digital converters), DACs (digital to analog converters),
+AIF IN and AIF OUT.
 
 Stream widgets have the following format:-
 
 SND_SOC_DAPM_DAC(name, stream name, reg, shift, invert),
+SND_SOC_DAPM_AIF_IN(name, stream, slot, reg, shift, invert)
 
 NOTE: the stream name must match the corresponding stream name in your codec
 snd_soc_codec_dai.
@@ -94,6 +104,11 @@ e.g. stream widgets for HiFi playback and capture
 SND_SOC_DAPM_DAC("HiFi DAC", "HiFi Playback", REG, 3, 1),
 SND_SOC_DAPM_ADC("HiFi ADC", "HiFi Capture", REG, 2, 1),
 
+e.g. stream widgets for AIF
+
+SND_SOC_DAPM_AIF_IN("AIF1RX", "AIF1 Playback", 0, SND_SOC_NOPM, 0, 0),
+SND_SOC_DAPM_AIF_OUT("AIF1TX", "AIF1 Capture", 0, SND_SOC_NOPM, 0, 0),
+
 
 2.2 Path Domain Widgets
 -----------------------
@@ -121,12 +136,14 @@ If you dont want the mixer elements prefixed with the name of the mixer widget,
 you can use SND_SOC_DAPM_MIXER_NAMED_CTL instead. the parameters are the same
 as for SND_SOC_DAPM_MIXER.
 
-2.3 Platform/Machine domain Widgets
------------------------------------
+
+2.3 Machine domain Widgets
+--------------------------
 
 Machine widgets are different from codec widgets in that they don't have a
 codec register bit associated with them. A machine widget is assigned to each
-machine audio component (non codec) that can be independently powered. e.g.
+machine audio component (non codec or DSP) that can be independently
+powered. e.g.
 
  o Speaker Amp
  o Microphone Bias
@@ -146,12 +163,12 @@ static int spitz_mic_bias(struct snd_soc_dapm_widget* w, int event)
 SND_SOC_DAPM_MIC("Mic Jack", spitz_mic_bias),
 
 
-2.4 Codec Domain
-----------------
+2.4 Codec (BIAS) Domain
+-----------------------
 
-The codec power domain has no widgets and is handled by the codecs DAPM event
-handler. This handler is called when the codec powerstate is changed wrt to any
-stream event or by kernel PM events.
+The codec bias power domain has no widgets and is handled by the codecs DAPM
+event handler. This handler is called when the codec powerstate is changed wrt
+to any stream event or by kernel PM events.
 
 
 2.5 Virtual Widgets
@@ -169,15 +186,16 @@ After all the widgets have been defined, they can then be added to the DAPM
 subsystem individually with a call to snd_soc_dapm_new_control().
 
 
-3. Codec Widget Interconnections
-================================
+3. Codec/DSP Widget Interconnections
+====================================
 
-Widgets are connected to each other within the codec and machine by audio paths
-(called interconnections). Each interconnection must be defined in order to
-create a map of all audio paths between widgets.
+Widgets are connected to each other within the codec, platform and machine by
+audio paths (called interconnections). Each interconnection must be defined in
+order to create a map of all audio paths between widgets.
 
-This is easiest with a diagram of the codec (and schematic of the machine audio
-system), as it requires joining widgets together via their audio signal paths.
+This is easiest with a diagram of the codec or DSP (and schematic of the machine
+audio system), as it requires joining widgets together via their audio signal
+paths.
 
 e.g., from the WM8731 output mixer (wm8731.c)
 
@@ -247,16 +265,9 @@ machine and includes the codec. e.g.
  o Mic Jack
  o Codec Pins
 
-When a codec pin is NC it can be marked as not used with a call to
-
-snd_soc_dapm_set_endpoint(codec, "Widget Name", 0);
-
-The last argument is 0 for inactive and 1 for active. This way the pin and its
-input widget will never be powered up and consume power.
-
-This also applies to machine widgets. e.g. if a headphone is connected to a
-jack then the jack can be marked active. If the headphone is removed, then
-the headphone jack can be marked inactive.
+Endpoints are added to the DAPM graph so that their usage can be determined in
+order to save power. e.g. NC codecs pins will be switched OFF, unconnected
+jacks can also be switched OFF.
 
 
 5 DAPM Widget Events
-- 
cgit 


From b5c47df974ddae44d4a1ff935cdda30b0795bc00 Mon Sep 17 00:00:00 2001
From: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Date: Fri, 20 Sep 2013 18:19:08 +0100
Subject: ASoC: Docs: Machine update

Update the machine driver documentation and bring it up to date
with the current code base. This includes multi component.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 Documentation/sound/alsa/soc/machine.txt | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Documentation/sound/alsa/soc/machine.txt b/Documentation/sound/alsa/soc/machine.txt
index d50c14df3411..74056dba52be 100644
--- a/Documentation/sound/alsa/soc/machine.txt
+++ b/Documentation/sound/alsa/soc/machine.txt
@@ -1,8 +1,10 @@
 ASoC Machine Driver
 ===================
 
-The ASoC machine (or board) driver is the code that glues together the platform
-and codec drivers.
+The ASoC machine (or board) driver is the code that glues together all the
+component drivers (e.g. codecs, platforms and DAIs). It also describes the
+relationships between each componnent which include audio paths, GPIOs,
+interrupts, clocking, jacks and voltage regulators.
 
 The machine driver can contain codec and platform specific code. It registers
 the audio subsystem with the kernel as a platform device and is represented by
-- 
cgit 


From 469b7bc4e6dbfdb173f0901f746e9277f6740ba7 Mon Sep 17 00:00:00 2001
From: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Date: Fri, 20 Sep 2013 18:19:09 +0100
Subject: ASoC: Docs: Add documentation for Dynamic PCM

Add documentation describing DPCM with examples of a DSP based
smart phone.

Signed-off-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 Documentation/sound/alsa/soc/DPCM.txt | 380 ++++++++++++++++++++++++++++++++++
 1 file changed, 380 insertions(+)
 create mode 100644 Documentation/sound/alsa/soc/DPCM.txt

diff --git a/Documentation/sound/alsa/soc/DPCM.txt b/Documentation/sound/alsa/soc/DPCM.txt
new file mode 100644
index 000000000000..aa8546f2d144
--- /dev/null
+++ b/Documentation/sound/alsa/soc/DPCM.txt
@@ -0,0 +1,380 @@
+Dynamic PCM
+===========
+
+1. Description
+==============
+
+Dynamic PCM allows an ALSA PCM device to digitally route its PCM audio to
+various digital endpoints during the PCM stream runtime. e.g. PCM0 can route
+digital audio to I2S DAI0, I2S DAI1 or PDM DAI2. This is useful for on SoC DSP
+drivers that expose several ALSA PCMs and can route to multiple DAIs.
+
+The DPCM runtime routing is determined by the ALSA mixer settings in the same
+way as the analog signal is routed in an ASoC codec driver. DPCM uses a DAPM
+graph representing the DSP internal audio paths and uses the mixer settings to
+determine the patch used by each ALSA PCM.
+
+DPCM re-uses all the existing component codec, platform and DAI drivers without
+any modifications.
+
+
+Phone Audio System with SoC based DSP
+-------------------------------------
+
+Consider the following phone audio subsystem. This will be used in this
+document for all examples :-
+
+| Front End PCMs    |  SoC DSP  | Back End DAIs | Audio devices |
+
+                    *************
+PCM0 <------------> *           * <----DAI0-----> Codec Headset
+                    *           *
+PCM1 <------------> *           * <----DAI1-----> Codec Speakers
+                    *   DSP     *
+PCM2 <------------> *           * <----DAI2-----> MODEM
+                    *           *
+PCM3 <------------> *           * <----DAI3-----> BT
+                    *           *
+                    *           * <----DAI4-----> DMIC
+                    *           *
+                    *           * <----DAI5-----> FM
+                    *************
+
+This diagram shows a simple smart phone audio subsystem. It supports Bluetooth,
+FM digital radio, Speakers, Headset Jack, digital microphones and cellular
+modem. This sound card exposes 4 DSP front end (FE) ALSA PCM devices and
+supports 6 back end (BE) DAIs. Each FE PCM can digitally route audio data to any
+of the BE DAIs. The FE PCM devices can also route audio to more than 1 BE DAI.
+
+
+
+Example - DPCM Switching playback from DAI0 to DAI1
+---------------------------------------------------
+
+Audio is being played to the Headset. After a while the user removes the headset
+and audio continues playing on the speakers.
+
+Playback on PCM0 to Headset would look like :-
+
+                    *************
+PCM0 <============> *           * <====DAI0=====> Codec Headset
+                    *           *
+PCM1 <------------> *           * <----DAI1-----> Codec Speakers
+                    *   DSP     *
+PCM2 <------------> *           * <----DAI2-----> MODEM
+                    *           *
+PCM3 <------------> *           * <----DAI3-----> BT
+                    *           *
+                    *           * <----DAI4-----> DMIC
+                    *           *
+                    *           * <----DAI5-----> FM
+                    *************
+
+The headset is removed from the jack by user so the speakers must now be used :-
+
+                    *************
+PCM0 <============> *           * <----DAI0-----> Codec Headset
+                    *           *
+PCM1 <------------> *           * <====DAI1=====> Codec Speakers
+                    *   DSP     *
+PCM2 <------------> *           * <----DAI2-----> MODEM
+                    *           *
+PCM3 <------------> *           * <----DAI3-----> BT
+                    *           *
+                    *           * <----DAI4-----> DMIC
+                    *           *
+                    *           * <----DAI5-----> FM
+                    *************
+
+The audio driver processes this as follows :-
+
+ 1) Machine driver receives Jack removal event.
+
+ 2) Machine driver OR audio HAL disables the Headset path.
+
+ 3) DPCM runs the PCM trigger(stop), hw_free(), shutdown() operations on DAI0
+    for headset since the path is now disabled.
+
+ 4) Machine driver or audio HAL enables the speaker path.
+
+ 5) DPCM runs the PCM ops for startup(), hw_params(), prepapre() and
+    trigger(start) for DAI1 Speakers since the path is enabled.
+
+In this example, the machine driver or userspace audio HAL can alter the routing
+and then DPCM will take care of managing the DAI PCM operations to either bring
+the link up or down. Audio playback does not stop during this transition.
+
+
+
+DPCM machine driver
+===================
+
+The DPCM enabled ASoC machine driver is similar to normal machine drivers
+except that we also have to :-
+
+ 1) Define the FE and BE DAI links.
+
+ 2) Define any FE/BE PCM operations.
+
+ 3) Define widget graph connections.
+
+
+1 FE and BE DAI links
+---------------------
+
+| Front End PCMs    |  SoC DSP  | Back End DAIs | Audio devices |
+
+                    *************
+PCM0 <------------> *           * <----DAI0-----> Codec Headset
+                    *           *
+PCM1 <------------> *           * <----DAI1-----> Codec Speakers
+                    *   DSP     *
+PCM2 <------------> *           * <----DAI2-----> MODEM
+                    *           *
+PCM3 <------------> *           * <----DAI3-----> BT
+                    *           *
+                    *           * <----DAI4-----> DMIC
+                    *           *
+                    *           * <----DAI5-----> FM
+                    *************
+
+For the example above we have to define 4 FE DAI links and 6 BE DAI links. The
+FE DAI links are defined as follows :-
+
+static struct snd_soc_dai_link machine_dais[] = {
+	{
+		.name = "PCM0 System",
+		.stream_name = "System Playback",
+		.cpu_dai_name = "System Pin",
+		.platform_name = "dsp-audio",
+		.codec_name = "snd-soc-dummy",
+		.codec_dai_name = "snd-soc-dummy-dai",
+		.dynamic = 1,
+		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
+		.dpcm_playback = 1,
+	},
+	.....< other FE and BE DAI links here >
+};
+
+This FE DAI link is pretty similar to a regular DAI link except that we also
+set the DAI link to a DPCM FE with the "dynamic = 1". The supported FE stream
+directions should also be set with the "dpcm_playback" and "dpcm_capture"
+flags. There is also an option to specify the ordering of the trigger call for
+each FE. This allows the ASoC core to trigger the DSP before or after the other
+components (as some DSPs have strong requirements for the ordering DAI/DSP
+start and stop sequences).
+
+The FE DAI above sets the codec and code DAIs to dummy devices since the BE is
+dynamic and will change depending on runtime config.
+
+The BE DAIs are configured as follows :-
+
+static struct snd_soc_dai_link machine_dais[] = {
+	.....< FE DAI links here >
+	{
+		.name = "Codec Headset",
+		.cpu_dai_name = "ssp-dai.0",
+		.platform_name = "snd-soc-dummy",
+		.no_pcm = 1,
+		.codec_name = "rt5640.0-001c",
+		.codec_dai_name = "rt5640-aif1",
+		.ignore_suspend = 1,
+		.ignore_pmdown_time = 1,
+		.be_hw_params_fixup = hswult_ssp0_fixup,
+		.ops = &haswell_ops,
+		.dpcm_playback = 1,
+		.dpcm_capture = 1,
+	},
+	.....< other BE DAI links here >
+};
+
+This BE DAI link connects DAI0 to the codec (in this case RT5460 AIF1). It sets
+the "no_pcm" flag to mark it has a BE and sets flags for supported stream
+directions using "dpcm_playback" and "dpcm_capture" above.
+
+The BE has also flags set for ignoreing suspend and PM down time. This allows
+the BE to work in a hostless mode where the host CPU is not transferring data
+like a BT phone call :-
+
+                    *************
+PCM0 <------------> *           * <----DAI0-----> Codec Headset
+                    *           *
+PCM1 <------------> *           * <----DAI1-----> Codec Speakers
+                    *   DSP     *
+PCM2 <------------> *           * <====DAI2=====> MODEM
+                    *           *
+PCM3 <------------> *           * <====DAI3=====> BT
+                    *           *
+                    *           * <----DAI4-----> DMIC
+                    *           *
+                    *           * <----DAI5-----> FM
+                    *************
+
+This allows the host CPU to sleep whilst the DSP, MODEM DAI and the BT DAI are
+still in operation.
+
+A BE DAI link can also set the codec to a dummy device if the code is a device
+that is managed externally.
+
+Likewise a BE DAI can also set a dummy cpu DAI if the CPU DAI is managed by the
+DSP firmware.
+
+
+2 FE/BE PCM operations
+----------------------
+
+The BE above also exports some PCM operations and a "fixup" callback. The fixup
+callback is used by the machine driver to (re)configure the DAI based upon the
+FE hw params. i.e. the DSP may perform SRC or ASRC from the FE to BE.
+
+e.g. DSP converts all FE hw params to run at fixed rate of 48k, 16bit, stereo for
+DAI0. This means all FE hw_params have to be fixed in the machine driver for
+DAI0 so that the DAI is running at desired configuration regardless of the FE
+configuration.
+
+static int dai0_fixup(struct snd_soc_pcm_runtime *rtd,
+			struct snd_pcm_hw_params *params)
+{
+	struct snd_interval *rate = hw_param_interval(params,
+			SNDRV_PCM_HW_PARAM_RATE);
+	struct snd_interval *channels = hw_param_interval(params,
+						SNDRV_PCM_HW_PARAM_CHANNELS);
+
+	/* The DSP will covert the FE rate to 48k, stereo */
+	rate->min = rate->max = 48000;
+	channels->min = channels->max = 2;
+
+	/* set DAI0 to 16 bit */
+	snd_mask_set(&params->masks[SNDRV_PCM_HW_PARAM_FORMAT -
+				    SNDRV_PCM_HW_PARAM_FIRST_MASK],
+				    SNDRV_PCM_FORMAT_S16_LE);
+	return 0;
+}
+
+The other PCM operation are the same as for regular DAI links. Use as necessary.
+
+
+3 Widget graph connections
+--------------------------
+
+The BE DAI links will normally be connected to the graph at initialisation time
+by the ASoC DAPM core. However, if the BE codec or BE DAI is a dummy then this
+has to be set explicitly in the driver :-
+
+/* BE for codec Headset -  DAI0 is dummy and managed by DSP FW */
+{"DAI0 CODEC IN", NULL, "AIF1 Capture"},
+{"AIF1 Playback", NULL, "DAI0 CODEC OUT"},
+
+
+Writing a DPCM DSP driver
+=========================
+
+The DPCM DSP driver looks much like a standard platform class ASoC driver
+combined with elements from a codec class driver. A DSP platform driver must
+implement :-
+
+ 1) Front End PCM DAIs - i.e. struct snd_soc_dai_driver.
+
+ 2) DAPM graph showing DSP audio routing from FE DAIs to BEs.
+
+ 3) DAPM widgets from DSP graph.
+
+ 4) Mixers for gains, routing, etc.
+
+ 5) DMA configuration.
+
+ 6) BE AIF widgets.
+
+Items 6 is important for routing the audio outside of the DSP. AIF need to be
+defined for each BE and each stream direction. e.g for BE DAI0 above we would
+have :-
+
+SND_SOC_DAPM_AIF_IN("DAI0 RX", NULL, 0, SND_SOC_NOPM, 0, 0),
+SND_SOC_DAPM_AIF_OUT("DAI0 TX", NULL, 0, SND_SOC_NOPM, 0, 0),
+
+The BE AIF are used to connect the DSP graph to the graphs for the other
+component drivers (e.g. codec graph).
+
+
+Hostless PCM streams
+====================
+
+A hostless PCM stream is a stream that is not routed through the host CPU. An
+example of this would be a phone call from handset to modem.
+
+
+                    *************
+PCM0 <------------> *           * <----DAI0-----> Codec Headset
+                    *           *
+PCM1 <------------> *           * <====DAI1=====> Codec Speakers/Mic
+                    *   DSP     *
+PCM2 <------------> *           * <====DAI2=====> MODEM
+                    *           *
+PCM3 <------------> *           * <----DAI3-----> BT
+                    *           *
+                    *           * <----DAI4-----> DMIC
+                    *           *
+                    *           * <----DAI5-----> FM
+                    *************
+
+In this case the PCM data is routed via the DSP. The host CPU in this use case
+is only used for control and can sleep during the runtime of the stream.
+
+The host can control the hostless link either by :-
+
+ 1) Configuring the link as a CODEC <-> CODEC style link. In this case the link
+    is enabled or disabled by the state of the DAPM graph. This usually means
+    there is a mixer control that can be used to connect or disconnect the path
+    between both DAIs.
+
+ 2) Hostless FE. This FE has a virtual connection to the BE DAI links on the DAPM
+    graph. Control is then carried out by the FE as regualar PCM operations.
+    This method gives more control over the DAI links, but requires much more
+    userspace code to control the link. Its recommended to use CODEC<->CODEC
+    unless your HW needs more fine grained sequencing of the PCM ops.
+
+
+CODEC <-> CODEC link
+--------------------
+
+This DAI link is enabled when DAPM detects a valid path within the DAPM graph.
+The machine driver sets some additional parameters to the DAI link i.e.
+
+static const struct snd_soc_pcm_stream dai_params = {
+	.formats = SNDRV_PCM_FMTBIT_S32_LE,
+	.rate_min = 8000,
+	.rate_max = 8000,
+	.channels_min = 2,
+	.channels_max = 2,
+};
+
+static struct snd_soc_dai_link dais[] = {
+	< ... more DAI links above ... >
+	{
+		.name = "MODEM",
+		.stream_name = "MODEM",
+		.cpu_dai_name = "dai2",
+		.codec_dai_name = "modem-aif1",
+		.codec_name = "modem",
+		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
+				| SND_SOC_DAIFMT_CBM_CFM,
+		.params = &dai_params,
+	}
+	< ... more DAI links here ... >
+
+These parameters are used to configure the DAI hw_params() when DAPM detects a
+valid path and then calls the PCM operations to start the link. DAPM will also
+call the appropriate PCM operations to disable the DAI when the path is no
+longer valid.
+
+
+Hostless FE
+-----------
+
+The DAI link(s) are enabled by a FE that does not read or write any PCM data.
+This means creating a new FE that is connected with a virtual path to both
+DAI links. The DAI links will be started when the FE PCM is started and stopped
+when the FE PCM is stopped. Note that the FE PCM cannot read or write data in
+this configuration.
+
+
-- 
cgit 


From 5ca1db41ecdeb0358b968265fadb755213558a85 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <miklos@szeredi.hu>
Date: Mon, 23 Sep 2013 13:21:04 +0100
Subject: GFS2: fix dentry leaks

We need to dput() the result of d_splice_alias(), unless it is passed to
finish_no_open().

Edited by Steven Whitehouse in order to make it apply to the current
GFS2 git tree, and taking account of a prerequisite patch which hasn't
been applied.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: stable@vger.kernel.org
---
 fs/gfs2/inode.c | 26 ++++++++++++++++----------
 1 file changed, 16 insertions(+), 10 deletions(-)

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 6d7f976aa328..cd58611912f5 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -585,12 +585,14 @@ static int gfs2_create_inode(struct inode *dir, struct dentry *dentry,
 		d = d_splice_alias(inode, dentry);
 		error = 0;
 		if (file) {
-			if (d == NULL)
-				d = dentry;
-			if (S_ISREG(inode->i_mode))
-				error = finish_open(file, d, gfs2_open_common, opened);
-			else
+			if (S_ISREG(inode->i_mode)) {
+				WARN_ON(d != NULL);
+				error = finish_open(file, dentry, gfs2_open_common, opened);
+			} else {
 				error = finish_no_open(file, d);
+			}
+		} else {
+			dput(d);
 		}
 		gfs2_glock_dq_uninit(ghs);
 		return error;
@@ -777,8 +779,10 @@ static struct dentry *__gfs2_lookup(struct inode *dir, struct dentry *dentry,
 		error = finish_open(file, dentry, gfs2_open_common, opened);
 
 	gfs2_glock_dq_uninit(&gh);
-	if (error)
+	if (error) {
+		dput(d);
 		return ERR_PTR(error);
+	}
 	return d;
 }
 
@@ -1159,14 +1163,16 @@ static int gfs2_atomic_open(struct inode *dir, struct dentry *dentry,
 	d = __gfs2_lookup(dir, dentry, file, opened);
 	if (IS_ERR(d))
 		return PTR_ERR(d);
-	if (d == NULL)
-		d = dentry;
-	if (d->d_inode) {
+	if (d != NULL)
+		dentry = d;
+	if (dentry->d_inode) {
 		if (!(*opened & FILE_OPENED))
-			return finish_no_open(file, d);
+			return finish_no_open(file, dentry);
+		dput(d);
 		return 0;
 	}
 
+	BUG_ON(d != NULL);
 	if (!(flags & O_CREAT))
 		return -ENOENT;
 
-- 
cgit 


From a3b924df8fa9083d2291efc2d1dca93609953718 Mon Sep 17 00:00:00 2001
From: Mateusz Krawczuk <m.krawczuk@partner.samsung.com>
Date: Mon, 23 Sep 2013 11:45:45 +0200
Subject: spi: s3c64xx: Add missing compatibles

Add compatibles for s3c6410, s5pc100 and s5pc110/s5pv210 boards.

Signed-off-by: Mateusz Krawczuk <m.krawczuk@partner.samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-s3c64xx.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 8bed27a4108c..84cc6ac801fe 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -1612,6 +1612,18 @@ static struct platform_device_id s3c64xx_spi_driver_ids[] = {
 };
 
 static const struct of_device_id s3c64xx_spi_dt_match[] = {
+	{ .compatible = "samsung,s3c2443-spi",
+			.data = (void *)&s3c2443_spi_port_config,
+	},
+	{ .compatible = "samsung,s3c6410-spi",
+			.data = (void *)&s3c6410_spi_port_config,
+	},
+	{ .compatible = "samsung,s5pc100-spi",
+			.data = (void *)&s5pc100_spi_port_config,
+	},
+	{ .compatible = "samsung,s5pv210-spi",
+			.data = (void *)&s5pv210_spi_port_config,
+	},
 	{ .compatible = "samsung,exynos4210-spi",
 			.data = (void *)&exynos4_spi_port_config,
 	},
-- 
cgit 


From 57841439b62e3ddb5ee50e765aa50330dde612d0 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Fri, 20 Sep 2013 18:39:18 +0800
Subject: spi: efm32: Don't call kfree() after spi_master_put()

Calling kfree() to clean up the memory obtained from spi_alloc_master() is
wrong as this is done in spi_master_release() when spi_master->dev's refcount
reaches zero.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-efm32.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/spi/spi-efm32.c b/drivers/spi/spi-efm32.c
index 7d84418a01d8..5b3117f69507 100644
--- a/drivers/spi/spi-efm32.c
+++ b/drivers/spi/spi-efm32.c
@@ -467,7 +467,6 @@ err_disable_clk:
 		clk_disable_unprepare(ddata->clk);
 err:
 		spi_master_put(master);
-		kfree(master);
 	}
 
 	return ret;
@@ -484,7 +483,6 @@ static int efm32_spi_remove(struct platform_device *pdev)
 	free_irq(ddata->rxirq, ddata);
 	clk_disable_unprepare(ddata->clk);
 	spi_master_put(master);
-	kfree(master);
 
 	return 0;
 }
-- 
cgit 


From f851c8d8583891a6e0a447b539db3c39a4f5d43d Mon Sep 17 00:00:00 2001
From: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Date: Tue, 17 Sep 2013 16:57:34 +0200
Subject: percpu: fix bootmem error handling in pcpu_page_first_chunk()

If memory allocation of in pcpu_embed_first_chunk() fails, the
allocated memory is not released correctly. In the release loop also
the non-allocated elements are released which leads to the following
kernel BUG on systems with very little memory:

[    0.000000] kernel BUG at mm/bootmem.c:307!
[    0.000000] illegal operation: 0001 [#1] PREEMPT SMP DEBUG_PAGEALLOC
[    0.000000] Modules linked in:
[    0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 3.10.0 #22
[    0.000000] task: 0000000000a20ae0 ti: 0000000000a08000 task.ti: 0000000000a08000
[    0.000000] Krnl PSW : 0400000180000000 0000000000abda7a (__free+0x116/0x154)
[    0.000000]            R:0 T:1 IO:0 EX:0 Key:0 M:0 W:0 P:0 AS:0 CC:0 PM:0 EA:3
...
[    0.000000]  [<0000000000abdce2>] mark_bootmem_node+0xde/0xf0
[    0.000000]  [<0000000000abdd9c>] mark_bootmem+0xa8/0x118
[    0.000000]  [<0000000000abcbba>] pcpu_embed_first_chunk+0xe7a/0xf0c
[    0.000000]  [<0000000000abcc96>] setup_per_cpu_areas+0x4a/0x28c

To fix the problem now only allocated elements are released. This then
leads to the correct kernel panic:

[    0.000000] Kernel panic - not syncing: Failed to initialize percpu areas.
...
[    0.000000] Call Trace:
[    0.000000] ([<000000000011307e>] show_trace+0x132/0x150)
[    0.000000]  [<0000000000113160>] show_stack+0xc4/0xd4
[    0.000000]  [<00000000007127dc>] dump_stack+0x74/0xd8
[    0.000000]  [<00000000007123fe>] panic+0xea/0x264
[    0.000000]  [<0000000000b14814>] setup_per_cpu_areas+0x5c/0x28c

tj: Flipped if conditional so that it doesn't need "continue".

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 mm/percpu.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/mm/percpu.c b/mm/percpu.c
index 8c8e08f3a692..0d10defe951e 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -1706,8 +1706,9 @@ int __init pcpu_embed_first_chunk(size_t reserved_size, size_t dyn_size,
 
 out_free_areas:
 	for (group = 0; group < ai->nr_groups; group++)
-		free_fn(areas[group],
-			ai->groups[group].nr_units * ai->unit_size);
+		if (areas[group])
+			free_fn(areas[group],
+				ai->groups[group].nr_units * ai->unit_size);
 out_free:
 	pcpu_free_alloc_info(ai);
 	if (areas)
-- 
cgit 


From 01896f7e0a122e8f20082e24f6f9a340034b9c01 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Sun, 18 Aug 2013 12:14:32 -0700
Subject: rcu: Convert local functions to static

The rcu_cpu_stall_timeout kernel parameter, the rcu_dynticks per-CPU
variable, and the rcu_gp_fqs() function are used only locally.  This
commit therefore marks them as static.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 kernel/rcupdate.c | 2 +-
 kernel/rcutree.c  | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c
index b02a339836b4..3260a1074b48 100644
--- a/kernel/rcupdate.c
+++ b/kernel/rcupdate.c
@@ -298,7 +298,7 @@ EXPORT_SYMBOL_GPL(do_trace_rcu_torture_read);
 #endif
 
 int rcu_cpu_stall_suppress __read_mostly; /* 1 = suppress stall warnings. */
-int rcu_cpu_stall_timeout __read_mostly = CONFIG_RCU_CPU_STALL_TIMEOUT;
+static int rcu_cpu_stall_timeout __read_mostly = CONFIG_RCU_CPU_STALL_TIMEOUT;
 
 module_param(rcu_cpu_stall_suppress, int, 0644);
 module_param(rcu_cpu_stall_timeout, int, 0644);
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index e0fa1920cd67..2712b8991143 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -222,7 +222,7 @@ void rcu_note_context_switch(int cpu)
 }
 EXPORT_SYMBOL_GPL(rcu_note_context_switch);
 
-DEFINE_PER_CPU(struct rcu_dynticks, rcu_dynticks) = {
+static DEFINE_PER_CPU(struct rcu_dynticks, rcu_dynticks) = {
 	.dynticks_nesting = DYNTICK_TASK_EXIT_IDLE,
 	.dynticks = ATOMIC_INIT(1),
 #ifdef CONFIG_NO_HZ_FULL_SYSIDLE
@@ -1366,7 +1366,7 @@ static int rcu_gp_init(struct rcu_state *rsp)
 /*
  * Do one round of quiescent-state forcing.
  */
-int rcu_gp_fqs(struct rcu_state *rsp, int fqs_state_in)
+static int rcu_gp_fqs(struct rcu_state *rsp, int fqs_state_in)
 {
 	int fqs_state = fqs_state_in;
 	bool isidle = false;
-- 
cgit 


From 829511d8aa7a2179bba57ab4ab277d6f9c77ae5b Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Sun, 18 Aug 2013 12:21:57 -0700
Subject: rcu: Fix dubious "if" condition in __call_rcu_nocb_enqueue()

This commit replaces an incorrect (but fortunately functional)
bitwise OR ("|") operator with the correct logical OR ("||").

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 kernel/rcutree_plugin.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index 130c97b027f2..6f9aecef8ab6 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -2108,7 +2108,7 @@ static void __call_rcu_nocb_enqueue(struct rcu_data *rdp,
 
 	/* If we are not being polled and there is a kthread, awaken it ... */
 	t = ACCESS_ONCE(rdp->nocb_kthread);
-	if (rcu_nocb_poll | !t)
+	if (rcu_nocb_poll || !t)
 		return;
 	len = atomic_long_read(&rdp->nocb_q_count);
 	if (old_rhpp == &rdp->nocb_head) {
-- 
cgit 


From 2a855b644c310d5db5a80b8816c0c7748c167977 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Fri, 23 Aug 2013 09:40:42 -0700
Subject: rcu: Make list_splice_init_rcu() account for RCU readers

The list_splice_init_rcu() function allows a list visible to RCU readers
to be spliced into another list visible to RCU readers.  This is OK,
except for the use of INIT_LIST_HEAD(), which does pointer updates
without doing anything to make those updates safe for concurrent readers.

Of course, most of the time INIT_LIST_HEAD() is being used in reader-free
contexts, such as initialization or cleanup, so it is OK for it to update
pointers in an unsafe-for-RCU-readers manner.  This commit therefore
creates an INIT_LIST_HEAD_RCU() that uses ACCESS_ONCE() to make the updates
reader-safe.  The reason that we can use ACCESS_ONCE() instead of the more
typical rcu_assign_pointer() is that list_splice_init_rcu() is updating the
pointers to reference something that is already visible to readers, so
that there is no problem with pre-initialized values.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 include/linux/rculist.h | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/include/linux/rculist.h b/include/linux/rculist.h
index 4106721c4e5e..45a0a9e81478 100644
--- a/include/linux/rculist.h
+++ b/include/linux/rculist.h
@@ -18,6 +18,21 @@
  * be used anywhere you would want to use a list_empty_rcu().
  */
 
+/*
+ * INIT_LIST_HEAD_RCU - Initialize a list_head visible to RCU readers
+ * @list: list to be initialized
+ *
+ * You should instead use INIT_LIST_HEAD() for normal initialization and
+ * cleanup tasks, when readers have no access to the list being initialized.
+ * However, if the list being initialized is visible to readers, you
+ * need to keep the compiler from being too mischievous.
+ */
+static inline void INIT_LIST_HEAD_RCU(struct list_head *list)
+{
+	ACCESS_ONCE(list->next) = list;
+	ACCESS_ONCE(list->prev) = list;
+}
+
 /*
  * return the ->next pointer of a list_head in an rcu safe
  * way, we must not access it directly
@@ -191,9 +206,13 @@ static inline void list_splice_init_rcu(struct list_head *list,
 	if (list_empty(list))
 		return;
 
-	/* "first" and "last" tracking list, so initialize it. */
+	/*
+	 * "first" and "last" tracking list, so initialize it.  RCU readers
+	 * have access to this list, so we must use INIT_LIST_HEAD_RCU()
+	 * instead of INIT_LIST_HEAD().
+	 */
 
-	INIT_LIST_HEAD(list);
+	INIT_LIST_HEAD_RCU(list);
 
 	/*
 	 * At this point, the list body still points to the source list.
-- 
cgit 


From c9d4b0af9e0609cc525c55de18229fde7c926d61 Mon Sep 17 00:00:00 2001
From: Christoph Lameter <cl@linux.com>
Date: Sat, 31 Aug 2013 13:34:10 -0700
Subject: rcu: Replace __get_cpu_var() uses

__get_cpu_var() is used for multiple purposes in the kernel source. One
of them is address calculation via the form &__get_cpu_var(x). This
calculates the address for the instance of the percpu variable of the
current processor based on an offset.

Other use cases are for storing and retrieving data from the current
processors percpu area.  __get_cpu_var() can be used as an lvalue when
writing data or on the right side of an assignment.

__get_cpu_var() is defined as :

__get_cpu_var() always only does an address determination. However,
store and retrieve operations could use a segment prefix (or global
register on other platforms) to avoid the address calculation.

this_cpu_write() and this_cpu_read() can directly take an offset into
a percpu area and use optimized assembly code to read and write per
cpu variables.

This patch converts __get_cpu_var into either an explicit address
calculation using this_cpu_ptr() or into a use of this_cpu operations
that use the offset. Thereby address calcualtions are avoided and less
registers are used when code is generated.

At the end of the patchset all uses of __get_cpu_var have been removed
so the macro is removed too.

The patchset includes passes over all arches as well. Once these
operations are used throughout then specialized macros can be defined in
non -x86 arches as well in order to optimize per cpu access by f.e. using
a global register that may be set to the per cpu base.

Transformations done to __get_cpu_var()

1. Determine the address of the percpu instance of the current processor.

	DEFINE_PER_CPU(int, y);
	int *x = &__get_cpu_var(y);

    Converts to

	int *x = this_cpu_ptr(&y);

2. Same as #1 but this time an array structure is involved.

	DEFINE_PER_CPU(int, y[20]);
	int *x = __get_cpu_var(y);

    Converts to

	int *x = this_cpu_ptr(y);

3. Retrieve the content of the current processors instance of a per cpu
   variable.

	DEFINE_PER_CPU(int, u);
	int x = __get_cpu_var(y)

   Converts to

	int x = __this_cpu_read(y);

4. Retrieve the content of a percpu struct

	DEFINE_PER_CPU(struct mystruct, y);
	struct mystruct x = __get_cpu_var(y);

   Converts to

	memcpy(this_cpu_ptr(&x), y, sizeof(x));

5. Assignment to a per cpu variable

	DEFINE_PER_CPU(int, y)
	__get_cpu_var(y) = x;

   Converts to

	this_cpu_write(y, x);

6. Increment/Decrement etc of a per cpu variable

	DEFINE_PER_CPU(int, y);
	__get_cpu_var(y)++

   Converts to

	this_cpu_inc(y)

Signed-off-by: Christoph Lameter <cl@linux.com>
[ paulmck: Address conflicts. ]
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 kernel/rcutree.c        | 22 +++++++++++-----------
 kernel/rcutree_plugin.h | 14 +++++++-------
 2 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 2712b8991143..8eb9cfd9e2b1 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -407,7 +407,7 @@ static void rcu_eqs_enter(bool user)
 	long long oldval;
 	struct rcu_dynticks *rdtp;
 
-	rdtp = &__get_cpu_var(rcu_dynticks);
+	rdtp = this_cpu_ptr(&rcu_dynticks);
 	oldval = rdtp->dynticks_nesting;
 	WARN_ON_ONCE((oldval & DYNTICK_TASK_NEST_MASK) == 0);
 	if ((oldval & DYNTICK_TASK_NEST_MASK) == DYNTICK_TASK_NEST_VALUE)
@@ -435,7 +435,7 @@ void rcu_idle_enter(void)
 
 	local_irq_save(flags);
 	rcu_eqs_enter(false);
-	rcu_sysidle_enter(&__get_cpu_var(rcu_dynticks), 0);
+	rcu_sysidle_enter(this_cpu_ptr(&rcu_dynticks), 0);
 	local_irq_restore(flags);
 }
 EXPORT_SYMBOL_GPL(rcu_idle_enter);
@@ -478,7 +478,7 @@ void rcu_irq_exit(void)
 	struct rcu_dynticks *rdtp;
 
 	local_irq_save(flags);
-	rdtp = &__get_cpu_var(rcu_dynticks);
+	rdtp = this_cpu_ptr(&rcu_dynticks);
 	oldval = rdtp->dynticks_nesting;
 	rdtp->dynticks_nesting--;
 	WARN_ON_ONCE(rdtp->dynticks_nesting < 0);
@@ -528,7 +528,7 @@ static void rcu_eqs_exit(bool user)
 	struct rcu_dynticks *rdtp;
 	long long oldval;
 
-	rdtp = &__get_cpu_var(rcu_dynticks);
+	rdtp = this_cpu_ptr(&rcu_dynticks);
 	oldval = rdtp->dynticks_nesting;
 	WARN_ON_ONCE(oldval < 0);
 	if (oldval & DYNTICK_TASK_NEST_MASK)
@@ -555,7 +555,7 @@ void rcu_idle_exit(void)
 
 	local_irq_save(flags);
 	rcu_eqs_exit(false);
-	rcu_sysidle_exit(&__get_cpu_var(rcu_dynticks), 0);
+	rcu_sysidle_exit(this_cpu_ptr(&rcu_dynticks), 0);
 	local_irq_restore(flags);
 }
 EXPORT_SYMBOL_GPL(rcu_idle_exit);
@@ -599,7 +599,7 @@ void rcu_irq_enter(void)
 	long long oldval;
 
 	local_irq_save(flags);
-	rdtp = &__get_cpu_var(rcu_dynticks);
+	rdtp = this_cpu_ptr(&rcu_dynticks);
 	oldval = rdtp->dynticks_nesting;
 	rdtp->dynticks_nesting++;
 	WARN_ON_ONCE(rdtp->dynticks_nesting == 0);
@@ -620,7 +620,7 @@ void rcu_irq_enter(void)
  */
 void rcu_nmi_enter(void)
 {
-	struct rcu_dynticks *rdtp = &__get_cpu_var(rcu_dynticks);
+	struct rcu_dynticks *rdtp = this_cpu_ptr(&rcu_dynticks);
 
 	if (rdtp->dynticks_nmi_nesting == 0 &&
 	    (atomic_read(&rdtp->dynticks) & 0x1))
@@ -642,7 +642,7 @@ void rcu_nmi_enter(void)
  */
 void rcu_nmi_exit(void)
 {
-	struct rcu_dynticks *rdtp = &__get_cpu_var(rcu_dynticks);
+	struct rcu_dynticks *rdtp = this_cpu_ptr(&rcu_dynticks);
 
 	if (rdtp->dynticks_nmi_nesting == 0 ||
 	    --rdtp->dynticks_nmi_nesting != 0)
@@ -665,7 +665,7 @@ int rcu_is_cpu_idle(void)
 	int ret;
 
 	preempt_disable();
-	ret = (atomic_read(&__get_cpu_var(rcu_dynticks).dynticks) & 0x1) == 0;
+	ret = (atomic_read(this_cpu_ptr(&rcu_dynticks.dynticks)) & 0x1) == 0;
 	preempt_enable();
 	return ret;
 }
@@ -703,7 +703,7 @@ bool rcu_lockdep_current_cpu_online(void)
 	if (in_nmi())
 		return 1;
 	preempt_disable();
-	rdp = &__get_cpu_var(rcu_sched_data);
+	rdp = this_cpu_ptr(&rcu_sched_data);
 	rnp = rdp->mynode;
 	ret = (rdp->grpmask & rnp->qsmaskinit) ||
 	      !rcu_scheduler_fully_active;
@@ -723,7 +723,7 @@ EXPORT_SYMBOL_GPL(rcu_lockdep_current_cpu_online);
  */
 static int rcu_is_cpu_rrupt_from_idle(void)
 {
-	return __get_cpu_var(rcu_dynticks).dynticks_nesting <= 1;
+	return __this_cpu_read(rcu_dynticks.dynticks_nesting) <= 1;
 }
 
 /*
diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index 6f9aecef8ab6..c684f7ab37fa 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -660,7 +660,7 @@ static void rcu_preempt_check_callbacks(int cpu)
 
 static void rcu_preempt_do_callbacks(void)
 {
-	rcu_do_batch(&rcu_preempt_state, &__get_cpu_var(rcu_preempt_data));
+	rcu_do_batch(&rcu_preempt_state, this_cpu_ptr(&rcu_preempt_data));
 }
 
 #endif /* #ifdef CONFIG_RCU_BOOST */
@@ -1332,7 +1332,7 @@ static void invoke_rcu_callbacks_kthread(void)
  */
 static bool rcu_is_callbacks_kthread(void)
 {
-	return __get_cpu_var(rcu_cpu_kthread_task) == current;
+	return __this_cpu_read(rcu_cpu_kthread_task) == current;
 }
 
 #define RCU_BOOST_DELAY_JIFFIES DIV_ROUND_UP(CONFIG_RCU_BOOST_DELAY * HZ, 1000)
@@ -1382,8 +1382,8 @@ static int rcu_spawn_one_boost_kthread(struct rcu_state *rsp,
 
 static void rcu_kthread_do_work(void)
 {
-	rcu_do_batch(&rcu_sched_state, &__get_cpu_var(rcu_sched_data));
-	rcu_do_batch(&rcu_bh_state, &__get_cpu_var(rcu_bh_data));
+	rcu_do_batch(&rcu_sched_state, this_cpu_ptr(&rcu_sched_data));
+	rcu_do_batch(&rcu_bh_state, this_cpu_ptr(&rcu_bh_data));
 	rcu_preempt_do_callbacks();
 }
 
@@ -1402,7 +1402,7 @@ static void rcu_cpu_kthread_park(unsigned int cpu)
 
 static int rcu_cpu_kthread_should_run(unsigned int cpu)
 {
-	return __get_cpu_var(rcu_cpu_has_work);
+	return __this_cpu_read(rcu_cpu_has_work);
 }
 
 /*
@@ -1412,8 +1412,8 @@ static int rcu_cpu_kthread_should_run(unsigned int cpu)
  */
 static void rcu_cpu_kthread(unsigned int cpu)
 {
-	unsigned int *statusp = &__get_cpu_var(rcu_cpu_kthread_status);
-	char work, *workp = &__get_cpu_var(rcu_cpu_has_work);
+	unsigned int *statusp = this_cpu_ptr(&rcu_cpu_kthread_status);
+	char work, *workp = this_cpu_ptr(&rcu_cpu_has_work);
 	int spincnt;
 
 	for (spincnt = 0; spincnt < 10; spincnt++) {
-- 
cgit 


From 289828e62de0334a0d01c0f65df91cd47d3a9e05 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Sat, 31 Aug 2013 19:23:29 -0700
Subject: rcu: Silence unused-variable warnings

The "idle" variable in both rcu_eqs_enter_common() and
rcu_eqs_exit_common() is only used in a WARN_ON_ONCE().  If the kernel
is built disabling WARN_ON_ONCE(), the compiler will complain (rightly)
that "idle" is unused.  This commit therefore adds a __maybe_unused to
the declaration of both variables.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 kernel/rcutree.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 8eb9cfd9e2b1..e6f2e8f14140 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -371,7 +371,8 @@ static void rcu_eqs_enter_common(struct rcu_dynticks *rdtp, long long oldval,
 {
 	trace_rcu_dyntick(TPS("Start"), oldval, rdtp->dynticks_nesting);
 	if (!user && !is_idle_task(current)) {
-		struct task_struct *idle = idle_task(smp_processor_id());
+		struct task_struct *idle __maybe_unused =
+			idle_task(smp_processor_id());
 
 		trace_rcu_dyntick(TPS("Error on entry: not idle task"), oldval, 0);
 		ftrace_dump(DUMP_ORIG);
@@ -508,7 +509,8 @@ static void rcu_eqs_exit_common(struct rcu_dynticks *rdtp, long long oldval,
 	rcu_cleanup_after_idle(smp_processor_id());
 	trace_rcu_dyntick(TPS("End"), oldval, rdtp->dynticks_nesting);
 	if (!user && !is_idle_task(current)) {
-		struct task_struct *idle = idle_task(smp_processor_id());
+		struct task_struct *idle __maybe_unused =
+			idle_task(smp_processor_id());
 
 		trace_rcu_dyntick(TPS("Error on exit: not idle task"),
 				  oldval, rdtp->dynticks_nesting);
-- 
cgit 


From 69c8d28c96445e28f081fcd987e34ea2afa65039 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Tue, 3 Sep 2013 09:52:20 -0700
Subject: rcu: Micro-optimize rcu_cpu_has_callbacks()

The for_each_rcu_flavor() loop unconditionally scans all flavors, even
when the first flavor might have some non-lazy callbacks.  Once the
loop has seen a non-lazy callback, further passes through the loop
cannot change the state.  This is not a huge problem, given that there
can be at most three RCU flavors (RCU-bh, RCU-preempt, and RCU-sched),
but this code is on the path to idle, so speeding it up even a small
amount would have some benefit.

This commit therefore does two things:

1.	Rearranges the order of the list of RCU flavors in order to
	place the most active flavor first in the list.  The most active
	RCU flavor is RCU-preempt, or, if there is no RCU-preempt,
	RCU-sched.

2.	Reworks the for_each_rcu_flavor() to exit early when the first
	non-lazy callback is seen, or, in the case where the caller
	does not care about non-lazy callbacks (RCU_FAST_NO_HZ=n),
	when the first callback is seen.

Reported-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 kernel/rcutree.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index e6f2e8f14140..49464aded7f7 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -2727,10 +2727,13 @@ static int rcu_cpu_has_callbacks(int cpu, bool *all_lazy)
 
 	for_each_rcu_flavor(rsp) {
 		rdp = per_cpu_ptr(rsp->rda, cpu);
-		if (rdp->qlen != rdp->qlen_lazy)
+		if (!rdp->nxtlist)
+			continue;
+		hc = true;
+		if (rdp->qlen != rdp->qlen_lazy || !all_lazy) {
 			al = false;
-		if (rdp->nxtlist)
-			hc = true;
+			break;
+		}
 	}
 	if (all_lazy)
 		*all_lazy = al;
@@ -3297,8 +3300,8 @@ void __init rcu_init(void)
 
 	rcu_bootup_announce();
 	rcu_init_geometry();
-	rcu_init_one(&rcu_sched_state, &rcu_sched_data);
 	rcu_init_one(&rcu_bh_state, &rcu_bh_data);
+	rcu_init_one(&rcu_sched_state, &rcu_sched_data);
 	__rcu_init_preempt();
 	open_softirq(RCU_SOFTIRQ, rcu_process_callbacks);
 
-- 
cgit 


From 26cdfedf6a902345f8604ea8e0b7dd2566b37a46 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Wed, 4 Sep 2013 10:51:13 -0700
Subject: rcu: Reject memory-order-induced stall-warning false positives

If a system is idle from an RCU perspective for longer than specified
by CONFIG_RCU_CPU_STALL_TIMEOUT, and if one CPU starts a grace period
just as a second checks for CPU stalls, and if this second CPU happens
to see the old value of rsp->jiffies_stall, it will incorrectly report a
CPU stall.  This is quite rare, but apparently occurs deterministically
on systems with about 6TB of memory.

This commit therefore orders accesses to the data used to determine
whether or not a CPU stall is in progress.  Grace-period initialization
and cleanup first increments rsp->completed to mark the end of the
previous grace period, then records the current jiffies in rsp->gp_start,
then records the jiffies at which a stall can be expected to occur in
rsp->jiffies_stall, and finally increments rsp->gpnum to mark the start
of the new grace period.  Now, this ordering by itself does not prevent
false positives.  For example, if grace-period initialization was delayed
between recording rsp->gp_start and rsp->jiffies_stall, the CPU stall
warning code might still see an old value of rsp->jiffies_stall.

Therefore, this commit also orders the CPU stall warning accesses as
well, loading rsp->gpnum and jiffies, then rsp->jiffies_stall, then
rsp->gp_start, and finally rsp->completed.  This ordering means that
the false-positive scenario in the previous paragraph would result
in rsp->completed being greater than or equal to rsp->gpnum, which is
never valid for a CPU stall, allowing the false positive to be rejected.
Furthermore, any fetch that gets an old value of rsp->jiffies_stall
must also get an old value of rsp->gpnum, which will again be rejected
by the comparison of rsp->gpnum and rsp->completed.  Situations where
rsp->gp_start is later than rsp->jiffies_stall are also rejected, as
are situations where jiffies is less than rsp->jiffies_stall.

Although use of unsynchronized accesses means that there are likely
still some false-positive scenarios (synchronization has proven to be
a very bad idea on large systems), this should get rid of a large class
of these scenarios.

Reported-by: Fabian Herschel <fabian.herschel@suse.com>
Reported-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Tested-by: Jochen Striepe <jochen@tolot.escape.de>
---
 kernel/rcutree.c | 45 ++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 40 insertions(+), 5 deletions(-)

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 49464aded7f7..b618d72bd8ec 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -804,8 +804,11 @@ static int rcu_implicit_dynticks_qs(struct rcu_data *rdp,
 
 static void record_gp_stall_check_time(struct rcu_state *rsp)
 {
-	rsp->gp_start = jiffies;
-	rsp->jiffies_stall = jiffies + rcu_jiffies_till_stall_check();
+	unsigned long j = ACCESS_ONCE(jiffies);
+
+	rsp->gp_start = j;
+	smp_wmb(); /* Record start time before stall time. */
+	rsp->jiffies_stall = j + rcu_jiffies_till_stall_check();
 }
 
 /*
@@ -934,17 +937,48 @@ static void print_cpu_stall(struct rcu_state *rsp)
 
 static void check_cpu_stall(struct rcu_state *rsp, struct rcu_data *rdp)
 {
+	unsigned long completed;
+	unsigned long gpnum;
+	unsigned long gps;
 	unsigned long j;
 	unsigned long js;
 	struct rcu_node *rnp;
 
-	if (rcu_cpu_stall_suppress)
+	if (rcu_cpu_stall_suppress || !rcu_gp_in_progress(rsp))
 		return;
 	j = ACCESS_ONCE(jiffies);
+
+	/*
+	 * Lots of memory barriers to reject false positives.
+	 *
+	 * The idea is to pick up rsp->gpnum, then rsp->jiffies_stall,
+	 * then rsp->gp_start, and finally rsp->completed.  These values
+	 * are updated in the opposite order with memory barriers (or
+	 * equivalent) during grace-period initialization and cleanup.
+	 * Now, a false positive can occur if we get an new value of
+	 * rsp->gp_start and a old value of rsp->jiffies_stall.  But given
+	 * the memory barriers, the only way that this can happen is if one
+	 * grace period ends and another starts between these two fetches.
+	 * Detect this by comparing rsp->completed with the previous fetch
+	 * from rsp->gpnum.
+	 *
+	 * Given this check, comparisons of jiffies, rsp->jiffies_stall,
+	 * and rsp->gp_start suffice to forestall false positives.
+	 */
+	gpnum = ACCESS_ONCE(rsp->gpnum);
+	smp_rmb(); /* Pick up ->gpnum first... */
 	js = ACCESS_ONCE(rsp->jiffies_stall);
+	smp_rmb(); /* ...then ->jiffies_stall before the rest... */
+	gps = ACCESS_ONCE(rsp->gp_start);
+	smp_rmb(); /* ...and finally ->gp_start before ->completed. */
+	completed = ACCESS_ONCE(rsp->completed);
+	if (ULONG_CMP_GE(completed, gpnum) ||
+	    ULONG_CMP_LT(j, js) ||
+	    ULONG_CMP_GE(gps, js))
+		return; /* No stall or GP completed since entering function. */
 	rnp = rdp->mynode;
 	if (rcu_gp_in_progress(rsp) &&
-	    (ACCESS_ONCE(rnp->qsmask) & rdp->grpmask) && ULONG_CMP_GE(j, js)) {
+	    (ACCESS_ONCE(rnp->qsmask) & rdp->grpmask)) {
 
 		/* We haven't checked in, so go dump stack. */
 		print_cpu_stall(rsp);
@@ -1317,9 +1351,10 @@ static int rcu_gp_init(struct rcu_state *rsp)
 	}
 
 	/* Advance to a new grace period and initialize state. */
+	record_gp_stall_check_time(rsp);
+	smp_wmb(); /* Record GP times before starting GP. */
 	rsp->gpnum++;
 	trace_rcu_grace_period(rsp->name, rsp->gpnum, TPS("start"));
-	record_gp_stall_check_time(rsp);
 	raw_spin_unlock_irq(&rnp->lock);
 
 	/* Exclude any concurrent CPU-hotplug operations. */
-- 
cgit 


From 0d75292467b0c8554d70c751a35af6514202ac28 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Sat, 17 Aug 2013 18:08:37 -0700
Subject: rcu: Have rcutiny tracepoints use tracepoint_string()

This commit extends the work done in f7f7bac9 (rcu: Have the RCU
tracepoints use the tracepoint_string infrastructure) to cover rcutiny.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/rcu.h     |  7 +++++++
 kernel/rcutiny.c | 17 ++++++++++-------
 kernel/rcutree.c |  7 -------
 3 files changed, 17 insertions(+), 14 deletions(-)

diff --git a/kernel/rcu.h b/kernel/rcu.h
index 77131966c4ad..7859a0a3951e 100644
--- a/kernel/rcu.h
+++ b/kernel/rcu.h
@@ -122,4 +122,11 @@ int rcu_jiffies_till_stall_check(void);
 
 #endif /* #ifdef CONFIG_RCU_STALL_COMMON */
 
+/*
+ * Strings used in tracepoints need to be exported via the
+ * tracing system such that tools like perf and trace-cmd can
+ * translate the string address pointers to actual text.
+ */
+#define TPS(x)  tracepoint_string(x)
+
 #endif /* __LINUX_RCU_H */
diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c
index 9ed6075dc562..e99eb5fb10af 100644
--- a/kernel/rcutiny.c
+++ b/kernel/rcutiny.c
@@ -35,6 +35,7 @@
 #include <linux/time.h>
 #include <linux/cpu.h>
 #include <linux/prefetch.h>
+#include <linux/ftrace_event.h>
 
 #ifdef CONFIG_RCU_TRACE
 #include <trace/events/rcu.h>
@@ -58,16 +59,17 @@ static long long rcu_dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
 static void rcu_idle_enter_common(long long newval)
 {
 	if (newval) {
-		RCU_TRACE(trace_rcu_dyntick("--=",
+		RCU_TRACE(trace_rcu_dyntick(TPS("--="),
 					    rcu_dynticks_nesting, newval));
 		rcu_dynticks_nesting = newval;
 		return;
 	}
-	RCU_TRACE(trace_rcu_dyntick("Start", rcu_dynticks_nesting, newval));
+	RCU_TRACE(trace_rcu_dyntick(TPS("Start"),
+				    rcu_dynticks_nesting, newval));
 	if (!is_idle_task(current)) {
 		struct task_struct *idle = idle_task(smp_processor_id());
 
-		RCU_TRACE(trace_rcu_dyntick("Error on entry: not idle task",
+		RCU_TRACE(trace_rcu_dyntick(TPS("Entry error: not idle task"),
 					    rcu_dynticks_nesting, newval));
 		ftrace_dump(DUMP_ALL);
 		WARN_ONCE(1, "Current pid: %d comm: %s / Idle pid: %d comm: %s",
@@ -120,15 +122,15 @@ EXPORT_SYMBOL_GPL(rcu_irq_exit);
 static void rcu_idle_exit_common(long long oldval)
 {
 	if (oldval) {
-		RCU_TRACE(trace_rcu_dyntick("++=",
+		RCU_TRACE(trace_rcu_dyntick(TPS("++="),
 					    oldval, rcu_dynticks_nesting));
 		return;
 	}
-	RCU_TRACE(trace_rcu_dyntick("End", oldval, rcu_dynticks_nesting));
+	RCU_TRACE(trace_rcu_dyntick(TPS("End"), oldval, rcu_dynticks_nesting));
 	if (!is_idle_task(current)) {
 		struct task_struct *idle = idle_task(smp_processor_id());
 
-		RCU_TRACE(trace_rcu_dyntick("Error on exit: not idle task",
+		RCU_TRACE(trace_rcu_dyntick(TPS("Exit error: not idle task"),
 			  oldval, rcu_dynticks_nesting));
 		ftrace_dump(DUMP_ALL);
 		WARN_ONCE(1, "Current pid: %d comm: %s / Idle pid: %d comm: %s",
@@ -304,7 +306,8 @@ static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp)
 		RCU_TRACE(cb_count++);
 	}
 	RCU_TRACE(rcu_trace_sub_qlen(rcp, cb_count));
-	RCU_TRACE(trace_rcu_batch_end(rcp->name, cb_count, 0, need_resched(),
+	RCU_TRACE(trace_rcu_batch_end(rcp->name,
+				      cb_count, 0, need_resched(),
 				      is_idle_task(current),
 				      false));
 }
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index b618d72bd8ec..62aab5ceefe9 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -61,13 +61,6 @@
 
 #include "rcu.h"
 
-/*
- * Strings used in tracepoints need to be exported via the
- * tracing system such that tools like perf and trace-cmd can
- * translate the string address pointers to actual text.
- */
-#define TPS(x)	tracepoint_string(x)
-
 /* Data structures. */
 
 static struct lock_class_key rcu_node_class[RCU_NUM_LVLS];
-- 
cgit 


From f7be82093952ee4a74ffc8c729b2811f908cd9a4 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Thu, 8 Aug 2013 18:27:52 -0700
Subject: rcu: Improve grace-period start logic

This commit improves grace-period start logic by checking ->gp_flags
under the lock and by issuing a warning if a grace period is already
in progress.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 kernel/rcutree.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 32618b3fe4e6..d679a522c0a2 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -1297,7 +1297,7 @@ static void note_gp_changes(struct rcu_state *rsp, struct rcu_data *rdp)
 }
 
 /*
- * Initialize a new grace period.
+ * Initialize a new grace period.  Return 0 if no grace period required.
  */
 static int rcu_gp_init(struct rcu_state *rsp)
 {
@@ -1306,10 +1306,18 @@ static int rcu_gp_init(struct rcu_state *rsp)
 
 	rcu_bind_gp_kthread();
 	raw_spin_lock_irq(&rnp->lock);
+	if (rsp->gp_flags == 0) {
+		/* Spurious wakeup, tell caller to go back to sleep.  */
+		raw_spin_unlock_irq(&rnp->lock);
+		return 0;
+	}
 	rsp->gp_flags = 0; /* Clear all flags: New grace period. */
 
-	if (rcu_gp_in_progress(rsp)) {
-		/* Grace period already in progress, don't start another.  */
+	if (WARN_ON_ONCE(rcu_gp_in_progress(rsp))) {
+		/*
+		 * Grace period already in progress, don't start another.
+		 * Not supposed to be able to happen.
+		 */
 		raw_spin_unlock_irq(&rnp->lock);
 		return 0;
 	}
@@ -1474,8 +1482,7 @@ static int __noreturn rcu_gp_kthread(void *arg)
 			wait_event_interruptible(rsp->gp_wq,
 						 rsp->gp_flags &
 						 RCU_GP_FLAG_INIT);
-			if ((rsp->gp_flags & RCU_GP_FLAG_INIT) &&
-			    rcu_gp_init(rsp))
+			if (rcu_gp_init(rsp))
 				break;
 			cond_resched();
 			flush_signals(current);
-- 
cgit 


From 88d6df612cc3c99f56cc18461fcc531c3a145544 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Thu, 8 Aug 2013 21:44:31 -0700
Subject: rcu: Prevent spurious-wakeup DoS attack on rcu_gp_kthread()

Spurious wakeups in the force-quiescent-state loop in rcu_gp_kthread()
cause the timeout to be recalculated, which would prevent rcu_gp_fqs()
from ever being called.  This would in turn would prevent the grace period
from ever ending for as long as there was at least one CPU in an extended
quiescent state that had not yet passed through a quiescent state.

This commit therefore avoids recalculating the timeout unless the
previous pass's call to wait_event_interruptible_timeout() actually
did time out, thus preventing the above scenario.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 kernel/rcutree.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index d679a522c0a2..62b67b78b661 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -1470,6 +1470,7 @@ static void rcu_gp_cleanup(struct rcu_state *rsp)
 static int __noreturn rcu_gp_kthread(void *arg)
 {
 	int fqs_state;
+	int gf;
 	unsigned long j;
 	int ret;
 	struct rcu_state *rsp = arg;
@@ -1495,10 +1496,13 @@ static int __noreturn rcu_gp_kthread(void *arg)
 			j = HZ;
 			jiffies_till_first_fqs = HZ;
 		}
+		ret = 0;
 		for (;;) {
-			rsp->jiffies_force_qs = jiffies + j;
+			if (!ret)
+				rsp->jiffies_force_qs = jiffies + j;
 			ret = wait_event_interruptible_timeout(rsp->gp_wq,
-					(rsp->gp_flags & RCU_GP_FLAG_FQS) ||
+					((gf = ACCESS_ONCE(rsp->gp_flags)) &
+					 RCU_GP_FLAG_FQS) ||
 					(!ACCESS_ONCE(rnp->qsmask) &&
 					 !rcu_preempt_blocked_readers_cgp(rnp)),
 					j);
@@ -1507,7 +1511,8 @@ static int __noreturn rcu_gp_kthread(void *arg)
 			    !rcu_preempt_blocked_readers_cgp(rnp))
 				break;
 			/* If time for quiescent-state forcing, do it. */
-			if (ret == 0 || (rsp->gp_flags & RCU_GP_FLAG_FQS)) {
+			if (ULONG_CMP_GE(jiffies, rsp->jiffies_force_qs) ||
+			    (gf & RCU_GP_FLAG_FQS)) {
 				fqs_state = rcu_gp_fqs(rsp, fqs_state);
 				cond_resched();
 			} else {
-- 
cgit 


From 591c6d1710cd73824057d08eda302cf2a7cfd18a Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Thu, 8 Aug 2013 22:26:23 -0700
Subject: rcu: Flag lockless access to ->gp_flags with ACCESS_ONCE()

This commit applies ACCESS_ONCE() to an outside-of-lock access to
->gp_flags.  Although it is hard to imagine any sane compiler messing
this particular case up, the documentation benefits are substantial.
Plus the definition of "sane compiler" grows ever looser.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 kernel/rcutree.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 62b67b78b661..6d028fdbf86c 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -1481,7 +1481,7 @@ static int __noreturn rcu_gp_kthread(void *arg)
 		/* Handle grace-period start. */
 		for (;;) {
 			wait_event_interruptible(rsp->gp_wq,
-						 rsp->gp_flags &
+						 ACCESS_ONCE(rsp->gp_flags) &
 						 RCU_GP_FLAG_INIT);
 			if (rcu_gp_init(rsp))
 				break;
-- 
cgit 


From 63c4db78e80407976e47bccaa2a4d8251b5a10bc Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Fri, 9 Aug 2013 12:19:29 -0700
Subject: rcu: Add tracing to rcu_gp_kthread()

This commit adds tracing to the rcu_gp_kthread() function in order to
help trace down hangs potentially involving this kthread.

Reported-by: Clark Williams <williams@redhat.com>
Reported-by: Carsten Emde <C.Emde@osadl.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 include/trace/events/rcu.h | 28 +++++++++++++++++++---------
 kernel/rcutree.c           | 18 ++++++++++++++++++
 2 files changed, 37 insertions(+), 9 deletions(-)

diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index ee2376cfaab3..60077e12093c 100644
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -39,15 +39,25 @@ TRACE_EVENT(rcu_utilization,
 #if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU)
 
 /*
- * Tracepoint for grace-period events: starting and ending a grace
- * period ("start" and "end", respectively), a CPU noting the start
- * of a new grace period or the end of an old grace period ("cpustart"
- * and "cpuend", respectively), a CPU passing through a quiescent
- * state ("cpuqs"), a CPU coming online or going offline ("cpuonl"
- * and "cpuofl", respectively), a CPU being kicked for being too
- * long in dyntick-idle mode ("kick"), a CPU accelerating its new
- * callbacks to RCU_NEXT_READY_TAIL ("AccReadyCB"), and a CPU
- * accelerating its new callbacks to RCU_WAIT_TAIL ("AccWaitCB").
+ * Tracepoint for grace-period events.  Takes a string identifying the
+ * RCU flavor, the grace-period number, and a string identifying the
+ * grace-period-related event as follows:
+ *
+ *	"AccReadyCB": CPU acclerates new callbacks to RCU_NEXT_READY_TAIL.
+ *	"AccWaitCB": CPU accelerates new callbacks to RCU_WAIT_TAIL.
+ *	"start": Start a grace period.
+ *	"cpustart": CPU first notices a grace-period start.
+ *	"cpuqs": CPU passes through a quiescent state.
+ *	"cpuonl": CPU comes online.
+ *	"cpuofl": CPU goes offline.
+ *	"reqwait": GP kthread sleeps waiting for grace-period request.
+ *	"reqwaitsig": GP kthread awakened by signal from reqwait state.
+ *	"fqswait": GP kthread waiting until time to force quiescent states.
+ *	"fqsstart": GP kthread starts forcing quiescent states.
+ *	"fqsend": GP kthread done forcing quiescent states.
+ *	"fqswaitsig": GP kthread awakened by signal from fqswait state.
+ *	"end": End a grace period.
+ *	"cpuend": CPU first notices a grace-period end.
  */
 TRACE_EVENT(rcu_grace_period,
 
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 6d028fdbf86c..78d371526667 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -1480,6 +1480,9 @@ static int __noreturn rcu_gp_kthread(void *arg)
 
 		/* Handle grace-period start. */
 		for (;;) {
+			trace_rcu_grace_period(rsp->name,
+					       ACCESS_ONCE(rsp->gpnum),
+					       TPS("reqwait"));
 			wait_event_interruptible(rsp->gp_wq,
 						 ACCESS_ONCE(rsp->gp_flags) &
 						 RCU_GP_FLAG_INIT);
@@ -1487,6 +1490,9 @@ static int __noreturn rcu_gp_kthread(void *arg)
 				break;
 			cond_resched();
 			flush_signals(current);
+			trace_rcu_grace_period(rsp->name,
+					       ACCESS_ONCE(rsp->gpnum),
+					       TPS("reqwaitsig"));
 		}
 
 		/* Handle quiescent-state forcing. */
@@ -1500,6 +1506,9 @@ static int __noreturn rcu_gp_kthread(void *arg)
 		for (;;) {
 			if (!ret)
 				rsp->jiffies_force_qs = jiffies + j;
+			trace_rcu_grace_period(rsp->name,
+					       ACCESS_ONCE(rsp->gpnum),
+					       TPS("fqswait"));
 			ret = wait_event_interruptible_timeout(rsp->gp_wq,
 					((gf = ACCESS_ONCE(rsp->gp_flags)) &
 					 RCU_GP_FLAG_FQS) ||
@@ -1513,12 +1522,21 @@ static int __noreturn rcu_gp_kthread(void *arg)
 			/* If time for quiescent-state forcing, do it. */
 			if (ULONG_CMP_GE(jiffies, rsp->jiffies_force_qs) ||
 			    (gf & RCU_GP_FLAG_FQS)) {
+				trace_rcu_grace_period(rsp->name,
+						       ACCESS_ONCE(rsp->gpnum),
+						       TPS("fqsstart"));
 				fqs_state = rcu_gp_fqs(rsp, fqs_state);
+				trace_rcu_grace_period(rsp->name,
+						       ACCESS_ONCE(rsp->gpnum),
+						       TPS("fqsend"));
 				cond_resched();
 			} else {
 				/* Deal with stray signal. */
 				cond_resched();
 				flush_signals(current);
+				trace_rcu_grace_period(rsp->name,
+						       ACCESS_ONCE(rsp->gpnum),
+						       TPS("fqswaitsig"));
 			}
 			j = jiffies_till_next_fqs;
 			if (j > HZ) {
-- 
cgit 


From bb311eccbdab974639263060b8452bf304af0b0c Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Fri, 9 Aug 2013 16:02:09 -0700
Subject: rcu: Add tracing of normal (non-NOCB) grace-period requests

This commit adds tracing to the normal grace-period request points.
These are rcu_gp_cleanup(), which checks for the need for another
grace period at the end of the previous grace period, and
rcu_start_gp_advanced(), which restarts RCU's state machine after
an idle period.  These trace events are intended to help track down
bugs where RCU remains idle despite there being work for it to do.

Reported-by: Clark Williams <williams@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 include/trace/events/rcu.h | 1 +
 kernel/rcutree.c           | 8 +++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index 60077e12093c..98466c618ebc 100644
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -45,6 +45,7 @@ TRACE_EVENT(rcu_utilization,
  *
  *	"AccReadyCB": CPU acclerates new callbacks to RCU_NEXT_READY_TAIL.
  *	"AccWaitCB": CPU accelerates new callbacks to RCU_WAIT_TAIL.
+ *	"newreq": Request a new grace period.
  *	"start": Start a grace period.
  *	"cpustart": CPU first notices a grace-period start.
  *	"cpuqs": CPU passes through a quiescent state.
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 78d371526667..54dd6d03dbb5 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -1459,8 +1459,12 @@ static void rcu_gp_cleanup(struct rcu_state *rsp)
 	rsp->fqs_state = RCU_GP_IDLE;
 	rdp = this_cpu_ptr(rsp->rda);
 	rcu_advance_cbs(rsp, rnp, rdp);  /* Reduce false positives below. */
-	if (cpu_needs_another_gp(rsp, rdp))
+	if (cpu_needs_another_gp(rsp, rdp)) {
 		rsp->gp_flags = 1;
+		trace_rcu_grace_period(rsp->name,
+				       ACCESS_ONCE(rsp->gpnum),
+				       TPS("newreq"));
+	}
 	raw_spin_unlock_irq(&rnp->lock);
 }
 
@@ -1584,6 +1588,8 @@ rcu_start_gp_advanced(struct rcu_state *rsp, struct rcu_node *rnp,
 		return;
 	}
 	rsp->gp_flags = RCU_GP_FLAG_INIT;
+	trace_rcu_grace_period(rsp->name, ACCESS_ONCE(rsp->gpnum),
+			       TPS("newreq"));
 
 	/*
 	 * We can't do wakeups while holding the rnp->lock, as that
-- 
cgit 


From 9261dd0da6c6432f08670719069449c6efe4f7a9 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Wed, 14 Aug 2013 16:24:26 -0700
Subject: rcu: Add tracing for rcuo no-CBs CPU wakeup handshake

Lost wakeups from call_rcu() to the rcuo kthreads can result in hangs
that are difficult to diagnose.  This commit therefore adds tracing to
help pin down the cause of these hangs.

Reported-by: Clark Williams <williams@redhat.com>
Reported-by: Carsten Emde <C.Emde@osadl.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
[ paulmck: Add const per kbuild test robot's advice. ]
---
 include/trace/events/rcu.h | 37 +++++++++++++++++++++++++++++++++++++
 kernel/rcutree_plugin.h    | 14 +++++++++++++-
 2 files changed, 50 insertions(+), 1 deletion(-)

diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index 98466c618ebc..4301cd9e3ee5 100644
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -171,6 +171,42 @@ TRACE_EVENT(rcu_grace_period_init,
 		  __entry->grplo, __entry->grphi, __entry->qsmask)
 );
 
+/*
+ * Tracepoint for RCU no-CBs CPU callback handoffs.  This event is intended
+ * to assist debugging of these handoffs.
+ *
+ * The first argument is the name of the RCU flavor, and the second is
+ * the number of the offloaded CPU are extracted.  The third and final
+ * argument is a string as follows:
+ *
+ *	"WakeEmpty": Wake rcuo kthread, first CB to empty list.
+ *	"WakeOvf": Wake rcuo kthread, CB list is huge.
+ *	"WakeNot": Don't wake rcuo kthread.
+ *	"WakeNotPoll": Don't wake rcuo kthread because it is polling.
+ *	"WokeEmpty": rcuo kthread woke to find empty list.
+ *	"WokeNonEmpty": rcuo kthread woke to find non-empty list.
+ */
+TRACE_EVENT(rcu_nocb_wake,
+
+	TP_PROTO(const char *rcuname, int cpu, const char *reason),
+
+	TP_ARGS(rcuname, cpu, reason),
+
+	TP_STRUCT__entry(
+		__field(const char *, rcuname)
+		__field(int, cpu)
+		__field(const char *, reason)
+	),
+
+	TP_fast_assign(
+		__entry->rcuname = rcuname;
+		__entry->cpu = cpu;
+		__entry->reason = reason;
+	),
+
+	TP_printk("%s %d %s", __entry->rcuname, __entry->cpu, __entry->reason)
+);
+
 /*
  * Tracepoint for tasks blocking within preemptible-RCU read-side
  * critical sections.  Track the type of RCU (which one day might
@@ -667,6 +703,7 @@ TRACE_EVENT(rcu_barrier,
 #define trace_rcu_future_grace_period(rcuname, gpnum, completed, c, \
 				      level, grplo, grphi, event) \
 				      do { } while (0)
+#define trace_rcu_nocb_wake(rcuname, cpu, reason) do { } while (0)
 #define trace_rcu_preempt_task(rcuname, pid, gpnum) do { } while (0)
 #define trace_rcu_unlock_preempted_task(rcuname, gpnum, pid) do { } while (0)
 #define trace_rcu_quiescent_state_report(rcuname, gpnum, mask, qsmask, level, \
diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index 130c97b027f2..f4ed24b18e77 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -2108,15 +2108,22 @@ static void __call_rcu_nocb_enqueue(struct rcu_data *rdp,
 
 	/* If we are not being polled and there is a kthread, awaken it ... */
 	t = ACCESS_ONCE(rdp->nocb_kthread);
-	if (rcu_nocb_poll | !t)
+	if (rcu_nocb_poll | !t) {
+		trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
+				    TPS("WakeNotPoll"));
 		return;
+	}
 	len = atomic_long_read(&rdp->nocb_q_count);
 	if (old_rhpp == &rdp->nocb_head) {
 		wake_up(&rdp->nocb_wq); /* ... only if queue was empty ... */
 		rdp->qlen_last_fqs_check = 0;
+		trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu, TPS("WakeEmpty"));
 	} else if (len > rdp->qlen_last_fqs_check + qhimark) {
 		wake_up_process(t); /* ... or if many callbacks queued. */
 		rdp->qlen_last_fqs_check = LONG_MAX / 2;
+		trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu, TPS("WakeOvf"));
+	} else {
+		trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu, TPS("WakeNot"));
 	}
 	return;
 }
@@ -2233,10 +2240,15 @@ static int rcu_nocb_kthread(void *arg)
 			wait_event_interruptible(rdp->nocb_wq, rdp->nocb_head);
 		list = ACCESS_ONCE(rdp->nocb_head);
 		if (!list) {
+			if (!rcu_nocb_poll)
+				trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
+						    TPS("WokeEmpty"));
 			schedule_timeout_interruptible(1);
 			flush_signals(current);
 			continue;
 		}
+		trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
+				    TPS("WokeNonEmpty"));
 
 		/*
 		 * Extract queued callbacks, update counts, and wait
-- 
cgit 


From 756cbf6befe6f59b0b3e0967d92a66c11e2566ed Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Thu, 15 Aug 2013 10:12:12 -0700
Subject: rcu: Distinguish between NOCB and non-NOCB rcu_callback trace events

One way to distinguish between NOCB and non-NOCB rcu_callback trace
events is that the former always print zero for the lazy and non-lazy
queue lengths.  Unfortunately, this also means that we cannot see the NOCB
queue lengths.  This commit therefore accesses the NOCB queue lengths,
but negates them.  NOCB rcu_callback trace events should therefore have
negative queue lengths.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
[ paulmck: Match operand size per kbuild test robot's advice. ]
---
 kernel/rcutree_plugin.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index f4ed24b18e77..24b01b69be92 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -2147,10 +2147,12 @@ static bool __call_rcu_nocb(struct rcu_data *rdp, struct rcu_head *rhp,
 	if (__is_kfree_rcu_offset((unsigned long)rhp->func))
 		trace_rcu_kfree_callback(rdp->rsp->name, rhp,
 					 (unsigned long)rhp->func,
-					 rdp->qlen_lazy, rdp->qlen);
+					 -atomic_long_read(&rdp->nocb_q_count_lazy),
+					 -atomic_long_read(&rdp->nocb_q_count));
 	else
 		trace_rcu_callback(rdp->rsp->name, rhp,
-				   rdp->qlen_lazy, rdp->qlen);
+				   -atomic_long_read(&rdp->nocb_q_count_lazy),
+				   -atomic_long_read(&rdp->nocb_q_count));
 	return 1;
 }
 
-- 
cgit 


From 69a79bb12a81024d718e73c52e886907a3777b34 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Thu, 15 Aug 2013 13:23:23 -0700
Subject: rcu: Track rcu_nocb_kthread()'s sleeping and awakening

This commit adds event traces to track all of rcu_nocb_kthread()'s
blocking and awakening.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 include/trace/events/rcu.h |  4 ++++
 kernel/rcutree_plugin.h    | 15 ++++++++++++++-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index 4301cd9e3ee5..a087d82ed431 100644
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -183,8 +183,12 @@ TRACE_EVENT(rcu_grace_period_init,
  *	"WakeOvf": Wake rcuo kthread, CB list is huge.
  *	"WakeNot": Don't wake rcuo kthread.
  *	"WakeNotPoll": Don't wake rcuo kthread because it is polling.
+ *	"Poll": Start of new polling cycle for rcu_nocb_poll.
+ *	"Sleep": Sleep waiting for CBs for !rcu_nocb_poll.
  *	"WokeEmpty": rcuo kthread woke to find empty list.
  *	"WokeNonEmpty": rcuo kthread woke to find non-empty list.
+ *	"WaitQueue": Enqueue partially done, timed wait for it to complete.
+ *	"WokeQueue": Partial enqueue now complete.
  */
 TRACE_EVENT(rcu_nocb_wake,
 
diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index 24b01b69be92..21205b185340 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -2230,6 +2230,7 @@ static void rcu_nocb_wait_gp(struct rcu_data *rdp)
 static int rcu_nocb_kthread(void *arg)
 {
 	int c, cl;
+	bool firsttime = 1;
 	struct rcu_head *list;
 	struct rcu_head *next;
 	struct rcu_head **tail;
@@ -2238,8 +2239,15 @@ static int rcu_nocb_kthread(void *arg)
 	/* Each pass through this loop invokes one batch of callbacks */
 	for (;;) {
 		/* If not polling, wait for next batch of callbacks. */
-		if (!rcu_nocb_poll)
+		if (!rcu_nocb_poll) {
+			trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
+					    TPS("Sleep"));
 			wait_event_interruptible(rdp->nocb_wq, rdp->nocb_head);
+		} else if (firsttime) {
+			firsttime = 0;
+			trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
+					    TPS("Poll"));
+		}
 		list = ACCESS_ONCE(rdp->nocb_head);
 		if (!list) {
 			if (!rcu_nocb_poll)
@@ -2249,6 +2257,7 @@ static int rcu_nocb_kthread(void *arg)
 			flush_signals(current);
 			continue;
 		}
+		firsttime = 1;
 		trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
 				    TPS("WokeNonEmpty"));
 
@@ -2271,7 +2280,11 @@ static int rcu_nocb_kthread(void *arg)
 			next = list->next;
 			/* Wait for enqueuing to complete, if needed. */
 			while (next == NULL && &list->next != tail) {
+				trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
+						    TPS("WaitQueue"));
 				schedule_timeout_interruptible(1);
+				trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
+						    TPS("WokeQueue"));
 				next = list->next;
 			}
 			debug_rcu_head_unqueue(list);
-- 
cgit 


From 15f5191b6acbbb38029b06284e8fd20275e7cfe8 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Sun, 18 Aug 2013 11:59:25 -0700
Subject: rcu: Avoid sparse warnings in rcu_nocb_wake trace event

The event-tracing macros do not like bool tracing arguments, so this
commit makes them be of type char.  This change has the knock-on effect
of making it illegal to pass a pointer into one of these arguments, so
also change rcutiny's first call to trace_rcu_batch_end() to convert
from pointer to boolean, prefixing with "!!".

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 include/trace/events/rcu.h | 10 +++++-----
 kernel/rcutiny.c           |  2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/trace/events/rcu.h b/include/trace/events/rcu.h
index a087d82ed431..aca382266411 100644
--- a/include/trace/events/rcu.h
+++ b/include/trace/events/rcu.h
@@ -591,17 +591,17 @@ TRACE_EVENT(rcu_invoke_kfree_callback,
 TRACE_EVENT(rcu_batch_end,
 
 	TP_PROTO(const char *rcuname, int callbacks_invoked,
-		 bool cb, bool nr, bool iit, bool risk),
+		 char cb, char nr, char iit, char risk),
 
 	TP_ARGS(rcuname, callbacks_invoked, cb, nr, iit, risk),
 
 	TP_STRUCT__entry(
 		__field(const char *, rcuname)
 		__field(int, callbacks_invoked)
-		__field(bool, cb)
-		__field(bool, nr)
-		__field(bool, iit)
-		__field(bool, risk)
+		__field(char, cb)
+		__field(char, nr)
+		__field(char, iit)
+		__field(char, risk)
 	),
 
 	TP_fast_assign(
diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c
index 9ed6075dc562..80b6e273f1c5 100644
--- a/kernel/rcutiny.c
+++ b/kernel/rcutiny.c
@@ -273,7 +273,7 @@ static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp)
 	if (&rcp->rcucblist == rcp->donetail) {
 		RCU_TRACE(trace_rcu_batch_start(rcp->name, 0, 0, -1));
 		RCU_TRACE(trace_rcu_batch_end(rcp->name, 0,
-					      ACCESS_ONCE(rcp->rcucblist),
+					      !!ACCESS_ONCE(rcp->rcucblist),
 					      need_resched(),
 					      is_idle_task(current),
 					      false));
-- 
cgit 


From 63f57cd45b0811de9663edf4af6b170c5bd3860d Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Sat, 21 Sep 2013 20:39:49 +0200
Subject: gpio: pcf857x: Add OF support

Add DT bindings for the pcf857x-compatible chips and parse the device
tree node in the driver.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 .../devicetree/bindings/gpio/gpio-pcf857x.txt      | 71 ++++++++++++++++++++++
 drivers/gpio/gpio-pcf857x.c                        | 44 +++++++++++---
 2 files changed, 107 insertions(+), 8 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/gpio/gpio-pcf857x.txt

diff --git a/Documentation/devicetree/bindings/gpio/gpio-pcf857x.txt b/Documentation/devicetree/bindings/gpio/gpio-pcf857x.txt
new file mode 100644
index 000000000000..d63194a2c848
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-pcf857x.txt
@@ -0,0 +1,71 @@
+* PCF857x-compatible I/O expanders
+
+The PCF857x-compatible chips have "quasi-bidirectional" I/O lines that can be
+driven high by a pull-up current source or driven low to ground. This combines
+the direction and output level into a single bit per line, which can't be read
+back. We can't actually know at initialization time whether a line is configured
+(a) as output and driving the signal low/high, or (b) as input and reporting a
+low/high value, without knowing the last value written since the chip came out
+of reset (if any). The only reliable solution for setting up line direction is
+thus to do it explicitly.
+
+Required Properties:
+
+  - compatible: should be one of the following.
+    - "maxim,max7328": For the Maxim MAX7378
+    - "maxim,max7329": For the Maxim MAX7329
+    - "nxp,pca8574": For the NXP PCA8574
+    - "nxp,pca8575": For the NXP PCA8575
+    - "nxp,pca9670": For the NXP PCA9670
+    - "nxp,pca9671": For the NXP PCA9671
+    - "nxp,pca9672": For the NXP PCA9672
+    - "nxp,pca9673": For the NXP PCA9673
+    - "nxp,pca9674": For the NXP PCA9674
+    - "nxp,pca9675": For the NXP PCA9675
+    - "nxp,pcf8574": For the NXP PCF8574
+    - "nxp,pcf8574a": For the NXP PCF8574A
+    - "nxp,pcf8575": For the NXP PCF8575
+    - "ti,tca9554": For the TI TCA9554
+
+  - reg: I2C slave address.
+
+  - gpio-controller: Marks the device node as a gpio controller.
+  - #gpio-cells: Should be 2. The first cell is the GPIO number and the second
+    cell specifies GPIO flags, as defined in <dt-bindings/gpio/gpio.h>. Only the
+    GPIO_ACTIVE_HIGH and GPIO_ACTIVE_LOW flags are supported.
+
+Optional Properties:
+
+  - lines-initial-states: Bitmask that specifies the initial state of each
+  line. When a bit is set to zero, the corresponding line will be initialized to
+  the input (pulled-up) state. When the  bit is set to one, the line will be
+  initialized the the low-level output state. If the property is not specified
+  all lines will be initialized to the input state.
+
+  The I/O expander can detect input state changes, and thus optionally act as
+  an interrupt controller. When the expander interrupt line is connected all the
+  following properties must be set. For more information please see the
+  interrupt controller device tree bindings documentation available at
+  Documentation/devicetree/bindings/interrupt-controller/interrupts.txt.
+
+  - interrupt-controller: Identifies the node as an interrupt controller.
+  - #interrupt-cells: Number of cells to encode an interrupt source, shall be 2.
+  - interrupt-parent: phandle of the parent interrupt controller.
+  - interrupts: Interrupt specifier for the controllers interrupt.
+
+
+Please refer to gpio.txt in this directory for details of the common GPIO
+bindings used by client devices.
+
+Example: PCF8575 I/O expander node
+
+	pcf8575: gpio@20 {
+		compatible = "nxp,pcf8575";
+		reg = <0x20>;
+		interrupt-parent = <&irqpin2>;
+		interrupts = <3 0>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+	};
diff --git a/drivers/gpio/gpio-pcf857x.c b/drivers/gpio/gpio-pcf857x.c
index 54725a632660..1535686e74ea 100644
--- a/drivers/gpio/gpio-pcf857x.c
+++ b/drivers/gpio/gpio-pcf857x.c
@@ -26,6 +26,8 @@
 #include <linux/irqdomain.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 
@@ -49,6 +51,27 @@ static const struct i2c_device_id pcf857x_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, pcf857x_id);
 
+#ifdef CONFIG_OF
+static const struct of_device_id pcf857x_of_table[] = {
+	{ .compatible = "nxp,pcf8574" },
+	{ .compatible = "nxp,pcf8574a" },
+	{ .compatible = "nxp,pca8574" },
+	{ .compatible = "nxp,pca9670" },
+	{ .compatible = "nxp,pca9672" },
+	{ .compatible = "nxp,pca9674" },
+	{ .compatible = "nxp,pcf8575" },
+	{ .compatible = "nxp,pca8575" },
+	{ .compatible = "nxp,pca9671" },
+	{ .compatible = "nxp,pca9673" },
+	{ .compatible = "nxp,pca9675" },
+	{ .compatible = "maxim,max7328" },
+	{ .compatible = "maxim,max7329" },
+	{ .compatible = "ti,tca9554" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, pcf857x_of_table);
+#endif
+
 /*
  * The pcf857x, pca857x, and pca967x chips only expose one read and one
  * write register.  Writing a "one" bit (to match the reset state) lets
@@ -260,14 +283,18 @@ fail:
 static int pcf857x_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
-	struct pcf857x_platform_data	*pdata;
+	struct pcf857x_platform_data	*pdata = dev_get_platdata(&client->dev);
+	struct device_node		*np = client->dev.of_node;
 	struct pcf857x			*gpio;
+	unsigned int			n_latch = 0;
 	int				status;
 
-	pdata = dev_get_platdata(&client->dev);
-	if (!pdata) {
+	if (IS_ENABLED(CONFIG_OF) && np)
+		of_property_read_u32(np, "lines-initial-states", &n_latch);
+	else if (pdata)
+		n_latch = pdata->n_latch;
+	else
 		dev_dbg(&client->dev, "no platform data\n");
-	}
 
 	/* Allocate, initialize, and register this gpio_chip. */
 	gpio = devm_kzalloc(&client->dev, sizeof(*gpio), GFP_KERNEL);
@@ -360,11 +387,11 @@ static int pcf857x_probe(struct i2c_client *client,
 	 * may cause transient glitching since it can't know the last value
 	 * written (some pins may need to be driven low).
 	 *
-	 * Using pdata->n_latch avoids that trouble.  When left initialized
-	 * to zero, our software copy of the "latch" then matches the chip's
-	 * all-ones reset state.  Otherwise it flags pins to be driven low.
+	 * Using n_latch avoids that trouble.  When left initialized to zero,
+	 * our software copy of the "latch" then matches the chip's all-ones
+	 * reset state.  Otherwise it flags pins to be driven low.
 	 */
-	gpio->out = pdata ? ~pdata->n_latch : ~0;
+	gpio->out = ~n_latch;
 	gpio->status = gpio->out;
 
 	status = gpiochip_add(&gpio->chip);
@@ -426,6 +453,7 @@ static struct i2c_driver pcf857x_driver = {
 	.driver = {
 		.name	= "pcf857x",
 		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(pcf857x_of_table),
 	},
 	.probe	= pcf857x_probe,
 	.remove	= pcf857x_remove,
-- 
cgit 


From 774487611c949e6d194877e7147f6eeeec092b53 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 16 Sep 2013 17:02:00 +0100
Subject: iio: pressure-core: st: Provide support for the Vdd power supply

The power to some of the sensors are controlled by regulators. In most
cases these are 'always on', but if not they will fail to work until
the regulator is enabled using the relevant APIs. This patch allows for
the Vdd power supply to be specified by either platform data or Device
Tree.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/pressure/st_pressure_core.c | 28 ++++++++++++++++++++++++++++
 include/linux/iio/common/st_sensors.h   |  3 +++
 2 files changed, 31 insertions(+)

diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index 2da411b6925b..baeab109f41d 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -23,6 +23,7 @@
 #include <linux/iio/sysfs.h>
 #include <linux/iio/trigger.h>
 #include <linux/iio/buffer.h>
+#include <linux/regulator/consumer.h>
 #include <asm/unaligned.h>
 
 #include <linux/iio/common/st_sensors.h>
@@ -313,6 +314,29 @@ static const struct iio_trigger_ops st_press_trigger_ops = {
 #define ST_PRESS_TRIGGER_OPS NULL
 #endif
 
+static void st_press_power_enable(struct iio_dev *indio_dev)
+{
+	struct st_sensor_data *pdata = iio_priv(indio_dev);
+	int err;
+
+	/* Regulators not mandatory, but if requested we should enable it. */
+	pdata->vdd = devm_regulator_get_optional(&indio_dev->dev, "vdd");
+	if (!IS_ERR(pdata->vdd)) {
+		err = regulator_enable(pdata->vdd);
+		if (err != 0)
+			dev_warn(&indio_dev->dev,
+				 "Failed to enable specified Vdd supply\n");
+	}
+}
+
+static void st_press_power_disable(struct iio_dev *indio_dev)
+{
+	struct st_sensor_data *pdata = iio_priv(indio_dev);
+
+	if (!IS_ERR(pdata->vdd))
+		regulator_disable(pdata->vdd);
+}
+
 int st_press_common_probe(struct iio_dev *indio_dev,
 				struct st_sensors_platform_data *plat_data)
 {
@@ -323,6 +347,8 @@ int st_press_common_probe(struct iio_dev *indio_dev,
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->info = &press_info;
 
+	st_press_power_enable(indio_dev);
+
 	err = st_sensors_check_device_support(indio_dev,
 					      ARRAY_SIZE(st_press_sensors),
 					      st_press_sensors);
@@ -380,6 +406,8 @@ void st_press_common_remove(struct iio_dev *indio_dev)
 {
 	struct st_sensor_data *pdata = iio_priv(indio_dev);
 
+	st_press_power_disable(indio_dev);
+
 	iio_device_unregister(indio_dev);
 	if (pdata->get_irq_data_ready(indio_dev) > 0)
 		st_sensors_deallocate_trigger(indio_dev);
diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index e732fda6c8e6..968b84e5f380 100644
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -16,6 +16,7 @@
 #include <linux/irqreturn.h>
 #include <linux/iio/trigger.h>
 #include <linux/bitops.h>
+#include <linux/regulator/consumer.h>
 
 #include <linux/platform_data/st_sensors_pdata.h>
 
@@ -201,6 +202,7 @@ struct st_sensors {
  * @trig: The trigger in use by the core driver.
  * @sensor: Pointer to the current sensor struct in use.
  * @current_fullscale: Maximum range of measure by the sensor.
+ * @vdd: Pointer to sensor's Vdd power supply
  * @enabled: Status of the sensor (false->off, true->on).
  * @multiread_bit: Use or not particular bit for [I2C/SPI] multiread.
  * @buffer_data: Data used by buffer part.
@@ -216,6 +218,7 @@ struct st_sensor_data {
 	struct iio_trigger *trig;
 	struct st_sensors *sensor;
 	struct st_sensor_fullscale_avl *current_fullscale;
+	struct regulator *vdd;
 
 	bool enabled;
 	bool multiread_bit;
-- 
cgit 


From 71e1980c8d465fd304d867d36f2246b72513efed Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 16 Sep 2013 17:02:00 +0100
Subject: iio: pressure-core: st: Provide support for the Vdd_IO power supply

The power to some of the sensors are controlled by regulators. In most
cases these are 'always on', but if not they will fail to work until
the regulator is enabled using the relevant APIs. This patch allows for
the Vdd_IO power supply to be specified by either platform data or
Device Tree.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/pressure/st_pressure_core.c | 13 ++++++++++++-
 include/linux/iio/common/st_sensors.h   |  2 ++
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c
index baeab109f41d..58083f9d51c5 100644
--- a/drivers/iio/pressure/st_pressure_core.c
+++ b/drivers/iio/pressure/st_pressure_core.c
@@ -319,7 +319,7 @@ static void st_press_power_enable(struct iio_dev *indio_dev)
 	struct st_sensor_data *pdata = iio_priv(indio_dev);
 	int err;
 
-	/* Regulators not mandatory, but if requested we should enable it. */
+	/* Regulators not mandatory, but if requested we should enable them. */
 	pdata->vdd = devm_regulator_get_optional(&indio_dev->dev, "vdd");
 	if (!IS_ERR(pdata->vdd)) {
 		err = regulator_enable(pdata->vdd);
@@ -327,6 +327,14 @@ static void st_press_power_enable(struct iio_dev *indio_dev)
 			dev_warn(&indio_dev->dev,
 				 "Failed to enable specified Vdd supply\n");
 	}
+
+	pdata->vdd_io = devm_regulator_get_optional(&indio_dev->dev, "vddio");
+	if (!IS_ERR(pdata->vdd_io)) {
+		err = regulator_enable(pdata->vdd_io);
+		if (err != 0)
+			dev_warn(&indio_dev->dev,
+				 "Failed to enable specified Vdd_IO supply\n");
+	}
 }
 
 static void st_press_power_disable(struct iio_dev *indio_dev)
@@ -335,6 +343,9 @@ static void st_press_power_disable(struct iio_dev *indio_dev)
 
 	if (!IS_ERR(pdata->vdd))
 		regulator_disable(pdata->vdd);
+
+	if (!IS_ERR(pdata->vdd_io))
+		regulator_disable(pdata->vdd_io);
 }
 
 int st_press_common_probe(struct iio_dev *indio_dev,
diff --git a/include/linux/iio/common/st_sensors.h b/include/linux/iio/common/st_sensors.h
index 968b84e5f380..3c005eb3a0a4 100644
--- a/include/linux/iio/common/st_sensors.h
+++ b/include/linux/iio/common/st_sensors.h
@@ -203,6 +203,7 @@ struct st_sensors {
  * @sensor: Pointer to the current sensor struct in use.
  * @current_fullscale: Maximum range of measure by the sensor.
  * @vdd: Pointer to sensor's Vdd power supply
+ * @vdd_io: Pointer to sensor's Vdd-IO power supply
  * @enabled: Status of the sensor (false->off, true->on).
  * @multiread_bit: Use or not particular bit for [I2C/SPI] multiread.
  * @buffer_data: Data used by buffer part.
@@ -219,6 +220,7 @@ struct st_sensor_data {
 	struct st_sensors *sensor;
 	struct st_sensor_fullscale_avl *current_fullscale;
 	struct regulator *vdd;
+	struct regulator *vdd_io;
 
 	bool enabled;
 	bool multiread_bit;
-- 
cgit 


From 4fa2a9e4682d2b559cc2fe9e9aaf026efa8be42e Mon Sep 17 00:00:00 2001
From: Aida Mynzhasova <aida.mynzhasova@skitlab.ru>
Date: Mon, 23 Sep 2013 15:19:00 +0100
Subject: iio: dac: ad5446: Add support for AD5641

This patch adds support for the AD5641 single channel,
14-bit, buffered voltage output DAC.

Signed-off-by: Aida Mynzhasova <aida.mynzhasova@skitlab.ru>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/Kconfig  | 2 +-
 drivers/iio/dac/ad5446.c | 6 ++++++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig
index 3c6a78a75b78..f378ca8033db 100644
--- a/drivers/iio/dac/Kconfig
+++ b/drivers/iio/dac/Kconfig
@@ -57,7 +57,7 @@ config AD5446
 	  Say yes here to build support for Analog Devices AD5300, AD5301, AD5310,
 	  AD5311, AD5320, AD5321, AD5444, AD5446, AD5450, AD5451, AD5452, AD5453,
 	  AD5512A, AD5541A, AD5542A, AD5543, AD5553, AD5601, AD5602, AD5611, AD5612,
-	  AD5620, AD5621, AD5622, AD5640, AD5660, AD5662 DACs.
+	  AD5620, AD5621, AD5622, AD5640, AD5641, AD5660, AD5662 DACs.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called ad5446.
diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c
index 6dcb6d93f0e4..8e28d3633e22 100644
--- a/drivers/iio/dac/ad5446.c
+++ b/drivers/iio/dac/ad5446.c
@@ -330,6 +330,7 @@ enum ad5446_supported_spi_device_ids {
 	ID_AD5601,
 	ID_AD5611,
 	ID_AD5621,
+	ID_AD5641,
 	ID_AD5620_2500,
 	ID_AD5620_1250,
 	ID_AD5640_2500,
@@ -392,6 +393,10 @@ static const struct ad5446_chip_info ad5446_spi_chip_info[] = {
 		.channel = AD5446_CHANNEL_POWERDOWN(12, 16, 2),
 		.write = ad5446_write,
 	},
+	[ID_AD5641] = {
+		.channel = AD5446_CHANNEL_POWERDOWN(14, 16, 0),
+		.write = ad5446_write,
+	},
 	[ID_AD5620_2500] = {
 		.channel = AD5446_CHANNEL_POWERDOWN(12, 16, 2),
 		.int_vref_mv = 2500,
@@ -446,6 +451,7 @@ static const struct spi_device_id ad5446_spi_ids[] = {
 	{"ad5601", ID_AD5601},
 	{"ad5611", ID_AD5611},
 	{"ad5621", ID_AD5621},
+	{"ad5641", ID_AD5641},
 	{"ad5620-2500", ID_AD5620_2500}, /* AD5620/40/60: */
 	{"ad5620-1250", ID_AD5620_1250}, /* part numbers may look differently */
 	{"ad5640-2500", ID_AD5640_2500},
-- 
cgit 


From 82ad6bcadeb87c2a289e714a680eadba294294df Mon Sep 17 00:00:00 2001
From: Yashpal Dutta <yashpal.dutta@freescale.com>
Date: Wed, 11 Sep 2013 19:24:06 +0000
Subject: crypto: caam - map src buffer before access

KMap the buffers before copying trailing bytes during hmac into a session
temporary buffer. This is required if pinned buffer from user-space is send
during hmac and is safe even if hmac request is generated from within kernel.

Signed-off-by: Yashpal Dutta <yashpal.dutta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/caam/sg_sw_sec4.h | 34 +++++++++++++++++++++++++---------
 1 file changed, 25 insertions(+), 9 deletions(-)

diff --git a/drivers/crypto/caam/sg_sw_sec4.h b/drivers/crypto/caam/sg_sw_sec4.h
index e0037c8ee243..b12ff85f4241 100644
--- a/drivers/crypto/caam/sg_sw_sec4.h
+++ b/drivers/crypto/caam/sg_sw_sec4.h
@@ -117,6 +117,21 @@ static int dma_unmap_sg_chained(struct device *dev, struct scatterlist *sg,
 	return nents;
 }
 
+/* Map SG page in kernel virtual address space and copy */
+static inline void sg_map_copy(u8 *dest, struct scatterlist *sg,
+			       int len, int offset)
+{
+	u8 *mapped_addr;
+
+	/*
+	 * Page here can be user-space pinned using get_user_pages
+	 * Same must be kmapped before use and kunmapped subsequently
+	 */
+	mapped_addr = kmap_atomic(sg_page(sg));
+	memcpy(dest, mapped_addr + offset, len);
+	kunmap_atomic(mapped_addr);
+}
+
 /* Copy from len bytes of sg to dest, starting from beginning */
 static inline void sg_copy(u8 *dest, struct scatterlist *sg, unsigned int len)
 {
@@ -124,15 +139,15 @@ static inline void sg_copy(u8 *dest, struct scatterlist *sg, unsigned int len)
 	int cpy_index = 0, next_cpy_index = current_sg->length;
 
 	while (next_cpy_index < len) {
-		memcpy(dest + cpy_index, (u8 *) sg_virt(current_sg),
-		       current_sg->length);
+		sg_map_copy(dest + cpy_index, current_sg, current_sg->length,
+			    current_sg->offset);
 		current_sg = scatterwalk_sg_next(current_sg);
 		cpy_index = next_cpy_index;
 		next_cpy_index += current_sg->length;
 	}
 	if (cpy_index < len)
-		memcpy(dest + cpy_index, (u8 *) sg_virt(current_sg),
-		       len - cpy_index);
+		sg_map_copy(dest + cpy_index, current_sg, len-cpy_index,
+			    current_sg->offset);
 }
 
 /* Copy sg data, from to_skip to end, to dest */
@@ -140,7 +155,7 @@ static inline void sg_copy_part(u8 *dest, struct scatterlist *sg,
 				      int to_skip, unsigned int end)
 {
 	struct scatterlist *current_sg = sg;
-	int sg_index, cpy_index;
+	int sg_index, cpy_index, offset;
 
 	sg_index = current_sg->length;
 	while (sg_index <= to_skip) {
@@ -148,9 +163,10 @@ static inline void sg_copy_part(u8 *dest, struct scatterlist *sg,
 		sg_index += current_sg->length;
 	}
 	cpy_index = sg_index - to_skip;
-	memcpy(dest, (u8 *) sg_virt(current_sg) +
-	       current_sg->length - cpy_index, cpy_index);
-	current_sg = scatterwalk_sg_next(current_sg);
-	if (end - sg_index)
+	offset = current_sg->offset + current_sg->length - cpy_index;
+	sg_map_copy(dest, current_sg, cpy_index, offset);
+	if (end - sg_index) {
+		current_sg = scatterwalk_sg_next(current_sg);
 		sg_copy(dest + cpy_index, current_sg, end - sg_index);
+	}
 }
-- 
cgit 


From 47aff652419bad66cc64c90210230e79c3317221 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 13 Sep 2013 17:06:45 +0530
Subject: crypto: mv_cesa - Staticize local symbols

Local symbols used only in this file are made static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/mv_cesa.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c
index 3374a3ebe4c7..f9b9560f64b4 100644
--- a/drivers/crypto/mv_cesa.c
+++ b/drivers/crypto/mv_cesa.c
@@ -907,7 +907,7 @@ static int mv_cra_hash_hmac_sha1_init(struct crypto_tfm *tfm)
 	return mv_cra_hash_init(tfm, "sha1", COP_HMAC_SHA1, SHA1_BLOCK_SIZE);
 }
 
-irqreturn_t crypto_int(int irq, void *priv)
+static irqreturn_t crypto_int(int irq, void *priv)
 {
 	u32 val;
 
@@ -928,7 +928,7 @@ irqreturn_t crypto_int(int irq, void *priv)
 	return IRQ_HANDLED;
 }
 
-struct crypto_alg mv_aes_alg_ecb = {
+static struct crypto_alg mv_aes_alg_ecb = {
 	.cra_name		= "ecb(aes)",
 	.cra_driver_name	= "mv-ecb-aes",
 	.cra_priority	= 300,
@@ -951,7 +951,7 @@ struct crypto_alg mv_aes_alg_ecb = {
 	},
 };
 
-struct crypto_alg mv_aes_alg_cbc = {
+static struct crypto_alg mv_aes_alg_cbc = {
 	.cra_name		= "cbc(aes)",
 	.cra_driver_name	= "mv-cbc-aes",
 	.cra_priority	= 300,
@@ -975,7 +975,7 @@ struct crypto_alg mv_aes_alg_cbc = {
 	},
 };
 
-struct ahash_alg mv_sha1_alg = {
+static struct ahash_alg mv_sha1_alg = {
 	.init = mv_hash_init,
 	.update = mv_hash_update,
 	.final = mv_hash_final,
@@ -999,7 +999,7 @@ struct ahash_alg mv_sha1_alg = {
 		 }
 };
 
-struct ahash_alg mv_hmac_sha1_alg = {
+static struct ahash_alg mv_hmac_sha1_alg = {
 	.init = mv_hash_init,
 	.update = mv_hash_update,
 	.final = mv_hash_final,
-- 
cgit 


From 034568e84f768cfa512884e4203c8bce035e46cc Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 13 Sep 2013 17:06:46 +0530
Subject: crypto: omap-aes - Staticize local symbols

Local symbols used only in this file are made static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Dmitry Kasatkin <dmitry.kasatkin@nokia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/omap-aes.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c
index ce791c2f81f7..e1e58d0ed550 100644
--- a/drivers/crypto/omap-aes.c
+++ b/drivers/crypto/omap-aes.c
@@ -554,7 +554,7 @@ static int omap_aes_crypt_dma_stop(struct omap_aes_dev *dd)
 	return err;
 }
 
-int omap_aes_check_aligned(struct scatterlist *sg)
+static int omap_aes_check_aligned(struct scatterlist *sg)
 {
 	while (sg) {
 		if (!IS_ALIGNED(sg->offset, 4))
@@ -566,7 +566,7 @@ int omap_aes_check_aligned(struct scatterlist *sg)
 	return 0;
 }
 
-int omap_aes_copy_sgs(struct omap_aes_dev *dd)
+static int omap_aes_copy_sgs(struct omap_aes_dev *dd)
 {
 	void *buf_in, *buf_out;
 	int pages;
-- 
cgit 


From 4903e9694d7681226802aaaffce5500de69230e1 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 13 Sep 2013 17:06:47 +0530
Subject: crypto: tegra-aes - Staticize tegra_aes_cra_exit

'tegra_aes_cra_exit' is used only in this file.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/tegra-aes.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/tegra-aes.c b/drivers/crypto/tegra-aes.c
index 7f42bfe9fc81..403282f01af9 100644
--- a/drivers/crypto/tegra-aes.c
+++ b/drivers/crypto/tegra-aes.c
@@ -795,7 +795,7 @@ static int tegra_aes_cra_init(struct crypto_tfm *tfm)
 	return 0;
 }
 
-void tegra_aes_cra_exit(struct crypto_tfm *tfm)
+static void tegra_aes_cra_exit(struct crypto_tfm *tfm)
 {
 	struct tegra_aes_ctx *ctx =
 		crypto_ablkcipher_ctx((struct crypto_ablkcipher *)tfm);
-- 
cgit 


From 6665ad20f020ffc8c632a4d4744a7550000f611e Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 16 Sep 2013 09:01:10 +0530
Subject: crypto: tegra-aes - Fix NULL pointer dereference

'dd' is tested for NULL. However, it is derefenced in the error
message print. Change the print to pr_err to avoid this.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/tegra-aes.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/crypto/tegra-aes.c b/drivers/crypto/tegra-aes.c
index 403282f01af9..33f953091402 100644
--- a/drivers/crypto/tegra-aes.c
+++ b/drivers/crypto/tegra-aes.c
@@ -27,6 +27,8 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/errno.h>
@@ -716,7 +718,7 @@ static int tegra_aes_rng_reset(struct crypto_rng *tfm, u8 *seed,
 	u8 *dt;
 
 	if (!ctx || !dd) {
-		dev_err(dd->dev, "ctx=0x%x, dd=0x%x\n",
+		pr_err("ctx=0x%x, dd=0x%x\n",
 			(unsigned int)ctx, (unsigned int)dd);
 		return -EINVAL;
 	}
-- 
cgit 


From 02e28cd71ab3e2752620b1f776b4bbc09ddc7ba3 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 16 Sep 2013 09:01:11 +0530
Subject: crypto: tegra-aes - Use devm_clk_get

devm_clk_get is device managed and makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/tegra-aes.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/crypto/tegra-aes.c b/drivers/crypto/tegra-aes.c
index 33f953091402..d8c7a132fea4 100644
--- a/drivers/crypto/tegra-aes.c
+++ b/drivers/crypto/tegra-aes.c
@@ -917,7 +917,7 @@ static int tegra_aes_probe(struct platform_device *pdev)
 	}
 
 	/* Initialize the vde clock */
-	dd->aes_clk = clk_get(dev, "vde");
+	dd->aes_clk = devm_clk_get(dev, "vde");
 	if (IS_ERR(dd->aes_clk)) {
 		dev_err(dev, "iclock intialization failed.\n");
 		err = -ENODEV;
@@ -1026,8 +1026,6 @@ out:
 	if (dd->buf_out)
 		dma_free_coherent(dev, AES_HW_DMA_BUFFER_SIZE_BYTES,
 			dd->buf_out, dd->dma_buf_out);
-	if (!IS_ERR(dd->aes_clk))
-		clk_put(dd->aes_clk);
 	if (aes_wq)
 		destroy_workqueue(aes_wq);
 	spin_lock(&list_lock);
@@ -1061,7 +1059,6 @@ static int tegra_aes_remove(struct platform_device *pdev)
 			  dd->buf_in, dd->dma_buf_in);
 	dma_free_coherent(dev, AES_HW_DMA_BUFFER_SIZE_BYTES,
 			  dd->buf_out, dd->dma_buf_out);
-	clk_put(dd->aes_clk);
 	aes_dev = NULL;
 
 	return 0;
-- 
cgit 


From ec795ad84c0a8c69723972eae31e60b0d94ab29a Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Mon, 16 Sep 2013 09:34:19 -0600
Subject: ARM: tegra: remove tegra_chip_uid()

Following commit f5b38c5 "crypto: tegra - use kernel entropy instead
of ad-hoc", this function is no longer used. It's also only accurate
for Tegra20 and not later SoCs. So, remove it.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 arch/arm/mach-tegra/fuse.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/arch/arm/mach-tegra/fuse.c b/arch/arm/mach-tegra/fuse.c
index e035cd284a6e..64652b374886 100644
--- a/arch/arm/mach-tegra/fuse.c
+++ b/arch/arm/mach-tegra/fuse.c
@@ -155,13 +155,3 @@ void tegra_init_fuse(void)
 		tegra_sku_id, tegra_cpu_process_id,
 		tegra_core_process_id);
 }
-
-unsigned long long tegra_chip_uid(void)
-{
-	unsigned long long lo, hi;
-
-	lo = tegra_fuse_readl(FUSE_UID_LOW);
-	hi = tegra_fuse_readl(FUSE_UID_HIGH);
-	return (hi << 32ull) | lo;
-}
-EXPORT_SYMBOL(tegra_chip_uid);
-- 
cgit 


From 714b33d15130cbb5ab426456d4e3de842d6c5b8a Mon Sep 17 00:00:00 2001
From: Neil Horman <nhorman@tuxdriver.com>
Date: Tue, 17 Sep 2013 08:33:11 -0400
Subject: crypto: ansi_cprng - Fix off by one error in non-block size request

Stephan Mueller reported to me recently a error in random number generation in
the ansi cprng. If several small requests are made that are less than the
instances block size, the remainder for loop code doesn't increment
rand_data_valid in the last iteration, meaning that the last bytes in the
rand_data buffer gets reused on the subsequent smaller-than-a-block request for
random data.

The fix is pretty easy, just re-code the for loop to make sure that
rand_data_valid gets incremented appropriately

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Reported-by: Stephan Mueller <stephan.mueller@atsec.com>
CC: Stephan Mueller <stephan.mueller@atsec.com>
CC: Petr Matousek <pmatouse@redhat.com>
CC: Herbert Xu <herbert@gondor.apana.org.au>
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/ansi_cprng.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/crypto/ansi_cprng.c b/crypto/ansi_cprng.c
index c0bb3778f1ae..666f1962a160 100644
--- a/crypto/ansi_cprng.c
+++ b/crypto/ansi_cprng.c
@@ -230,11 +230,11 @@ remainder:
 	 */
 	if (byte_count < DEFAULT_BLK_SZ) {
 empty_rbuf:
-		for (; ctx->rand_data_valid < DEFAULT_BLK_SZ;
-			ctx->rand_data_valid++) {
+		while (ctx->rand_data_valid < DEFAULT_BLK_SZ) {
 			*ptr = ctx->rand_data[ctx->rand_data_valid];
 			ptr++;
 			byte_count--;
+			ctx->rand_data_valid++;
 			if (byte_count == 0)
 				goto done;
 		}
-- 
cgit 


From a62b01cd6cc1feb5e80d64d6937c291473ed82cb Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Fri, 20 Sep 2013 09:55:40 +0200
Subject: crypto: create generic version of ablk_helper

Create a generic version of ablk_helper so it can be reused
by other architectures.

Acked-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/Kconfig               |   4 ++
 crypto/Makefile              |   1 +
 crypto/ablk_helper.c         | 150 +++++++++++++++++++++++++++++++++++++++++++
 include/asm-generic/simd.h   |  14 ++++
 include/crypto/ablk_helper.h |  31 +++++++++
 5 files changed, 200 insertions(+)
 create mode 100644 crypto/ablk_helper.c
 create mode 100644 include/asm-generic/simd.h
 create mode 100644 include/crypto/ablk_helper.h

diff --git a/crypto/Kconfig b/crypto/Kconfig
index 69ce573f1224..8179ae62cec0 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -179,6 +179,10 @@ config CRYPTO_ABLK_HELPER_X86
 	depends on X86
 	select CRYPTO_CRYPTD
 
+config CRYPTO_ABLK_HELPER
+	tristate
+	select CRYPTO_CRYPTD
+
 config CRYPTO_GLUE_HELPER_X86
 	tristate
 	depends on X86
diff --git a/crypto/Makefile b/crypto/Makefile
index 2d5ed08a239f..580af977f496 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -104,3 +104,4 @@ obj-$(CONFIG_CRYPTO_USER_API_SKCIPHER) += algif_skcipher.o
 obj-$(CONFIG_XOR_BLOCKS) += xor.o
 obj-$(CONFIG_ASYNC_CORE) += async_tx/
 obj-$(CONFIG_ASYMMETRIC_KEY_TYPE) += asymmetric_keys/
+obj-$(CONFIG_CRYPTO_ABLK_HELPER) += ablk_helper.o
diff --git a/crypto/ablk_helper.c b/crypto/ablk_helper.c
new file mode 100644
index 000000000000..62568b1fc885
--- /dev/null
+++ b/crypto/ablk_helper.c
@@ -0,0 +1,150 @@
+/*
+ * Shared async block cipher helpers
+ *
+ * Copyright (c) 2012 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
+ *
+ * Based on aesni-intel_glue.c by:
+ *  Copyright (C) 2008, Intel Corp.
+ *    Author: Huang Ying <ying.huang@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
+ * USA
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/crypto.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/hardirq.h>
+#include <crypto/algapi.h>
+#include <crypto/cryptd.h>
+#include <crypto/ablk_helper.h>
+#include <asm/simd.h>
+
+int ablk_set_key(struct crypto_ablkcipher *tfm, const u8 *key,
+		 unsigned int key_len)
+{
+	struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm);
+	struct crypto_ablkcipher *child = &ctx->cryptd_tfm->base;
+	int err;
+
+	crypto_ablkcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
+	crypto_ablkcipher_set_flags(child, crypto_ablkcipher_get_flags(tfm)
+				    & CRYPTO_TFM_REQ_MASK);
+	err = crypto_ablkcipher_setkey(child, key, key_len);
+	crypto_ablkcipher_set_flags(tfm, crypto_ablkcipher_get_flags(child)
+				    & CRYPTO_TFM_RES_MASK);
+	return err;
+}
+EXPORT_SYMBOL_GPL(ablk_set_key);
+
+int __ablk_encrypt(struct ablkcipher_request *req)
+{
+	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
+	struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm);
+	struct blkcipher_desc desc;
+
+	desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm);
+	desc.info = req->info;
+	desc.flags = 0;
+
+	return crypto_blkcipher_crt(desc.tfm)->encrypt(
+		&desc, req->dst, req->src, req->nbytes);
+}
+EXPORT_SYMBOL_GPL(__ablk_encrypt);
+
+int ablk_encrypt(struct ablkcipher_request *req)
+{
+	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
+	struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm);
+
+	if (!may_use_simd()) {
+		struct ablkcipher_request *cryptd_req =
+			ablkcipher_request_ctx(req);
+
+		memcpy(cryptd_req, req, sizeof(*req));
+		ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
+
+		return crypto_ablkcipher_encrypt(cryptd_req);
+	} else {
+		return __ablk_encrypt(req);
+	}
+}
+EXPORT_SYMBOL_GPL(ablk_encrypt);
+
+int ablk_decrypt(struct ablkcipher_request *req)
+{
+	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
+	struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm);
+
+	if (!may_use_simd()) {
+		struct ablkcipher_request *cryptd_req =
+			ablkcipher_request_ctx(req);
+
+		memcpy(cryptd_req, req, sizeof(*req));
+		ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
+
+		return crypto_ablkcipher_decrypt(cryptd_req);
+	} else {
+		struct blkcipher_desc desc;
+
+		desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm);
+		desc.info = req->info;
+		desc.flags = 0;
+
+		return crypto_blkcipher_crt(desc.tfm)->decrypt(
+			&desc, req->dst, req->src, req->nbytes);
+	}
+}
+EXPORT_SYMBOL_GPL(ablk_decrypt);
+
+void ablk_exit(struct crypto_tfm *tfm)
+{
+	struct async_helper_ctx *ctx = crypto_tfm_ctx(tfm);
+
+	cryptd_free_ablkcipher(ctx->cryptd_tfm);
+}
+EXPORT_SYMBOL_GPL(ablk_exit);
+
+int ablk_init_common(struct crypto_tfm *tfm, const char *drv_name)
+{
+	struct async_helper_ctx *ctx = crypto_tfm_ctx(tfm);
+	struct cryptd_ablkcipher *cryptd_tfm;
+
+	cryptd_tfm = cryptd_alloc_ablkcipher(drv_name, 0, 0);
+	if (IS_ERR(cryptd_tfm))
+		return PTR_ERR(cryptd_tfm);
+
+	ctx->cryptd_tfm = cryptd_tfm;
+	tfm->crt_ablkcipher.reqsize = sizeof(struct ablkcipher_request) +
+		crypto_ablkcipher_reqsize(&cryptd_tfm->base);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ablk_init_common);
+
+int ablk_init(struct crypto_tfm *tfm)
+{
+	char drv_name[CRYPTO_MAX_ALG_NAME];
+
+	snprintf(drv_name, sizeof(drv_name), "__driver-%s",
+					crypto_tfm_alg_driver_name(tfm));
+
+	return ablk_init_common(tfm, drv_name);
+}
+EXPORT_SYMBOL_GPL(ablk_init);
+
+MODULE_LICENSE("GPL");
diff --git a/include/asm-generic/simd.h b/include/asm-generic/simd.h
new file mode 100644
index 000000000000..f57eb7b5c23b
--- /dev/null
+++ b/include/asm-generic/simd.h
@@ -0,0 +1,14 @@
+
+#include <linux/hardirq.h>
+
+/*
+ * may_use_simd - whether it is allowable at this time to issue SIMD
+ *                instructions or access the SIMD register file
+ *
+ * As architectures typically don't preserve the SIMD register file when
+ * taking an interrupt, !in_interrupt() should be a reasonable default.
+ */
+static __must_check inline bool may_use_simd(void)
+{
+	return !in_interrupt();
+}
diff --git a/include/crypto/ablk_helper.h b/include/crypto/ablk_helper.h
new file mode 100644
index 000000000000..4f93df50c23e
--- /dev/null
+++ b/include/crypto/ablk_helper.h
@@ -0,0 +1,31 @@
+/*
+ * Shared async block cipher helpers
+ */
+
+#ifndef _CRYPTO_ABLK_HELPER_H
+#define _CRYPTO_ABLK_HELPER_H
+
+#include <linux/crypto.h>
+#include <linux/kernel.h>
+#include <crypto/cryptd.h>
+
+struct async_helper_ctx {
+	struct cryptd_ablkcipher *cryptd_tfm;
+};
+
+extern int ablk_set_key(struct crypto_ablkcipher *tfm, const u8 *key,
+			unsigned int key_len);
+
+extern int __ablk_encrypt(struct ablkcipher_request *req);
+
+extern int ablk_encrypt(struct ablkcipher_request *req);
+
+extern int ablk_decrypt(struct ablkcipher_request *req);
+
+extern void ablk_exit(struct crypto_tfm *tfm);
+
+extern int ablk_init_common(struct crypto_tfm *tfm, const char *drv_name);
+
+extern int ablk_init(struct crypto_tfm *tfm);
+
+#endif /* _CRYPTO_ABLK_HELPER_H */
-- 
cgit 


From 801201aa25646291aa87ba97250f6614639eb2ea Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Fri, 20 Sep 2013 09:55:41 +0200
Subject: crypto: move x86 to the generic version of ablk_helper

Move all users of ablk_helper under x86/ to the generic version
and delete the x86 specific version.

Acked-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 arch/x86/crypto/Makefile                   |   1 -
 arch/x86/crypto/ablk_helper.c              | 149 -----------------------------
 arch/x86/crypto/aesni-intel_glue.c         |   2 +-
 arch/x86/crypto/camellia_aesni_avx2_glue.c |   2 +-
 arch/x86/crypto/camellia_aesni_avx_glue.c  |   2 +-
 arch/x86/crypto/cast5_avx_glue.c           |   2 +-
 arch/x86/crypto/cast6_avx_glue.c           |   2 +-
 arch/x86/crypto/serpent_avx2_glue.c        |   2 +-
 arch/x86/crypto/serpent_avx_glue.c         |   2 +-
 arch/x86/crypto/serpent_sse2_glue.c        |   2 +-
 arch/x86/crypto/twofish_avx_glue.c         |   2 +-
 arch/x86/include/asm/crypto/ablk_helper.h  |  31 ------
 arch/x86/include/asm/simd.h                |  11 +++
 crypto/Kconfig                             |  25 ++---
 14 files changed, 30 insertions(+), 205 deletions(-)
 delete mode 100644 arch/x86/crypto/ablk_helper.c
 delete mode 100644 arch/x86/include/asm/crypto/ablk_helper.h
 create mode 100644 arch/x86/include/asm/simd.h

diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile
index 75b08e1e69db..e0fc24db234a 100644
--- a/arch/x86/crypto/Makefile
+++ b/arch/x86/crypto/Makefile
@@ -6,7 +6,6 @@ avx_supported := $(call as-instr,vpxor %xmm0$(comma)%xmm0$(comma)%xmm0,yes,no)
 avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\
 				$(comma)4)$(comma)%ymm2,yes,no)
 
-obj-$(CONFIG_CRYPTO_ABLK_HELPER_X86) += ablk_helper.o
 obj-$(CONFIG_CRYPTO_GLUE_HELPER_X86) += glue_helper.o
 
 obj-$(CONFIG_CRYPTO_AES_586) += aes-i586.o
diff --git a/arch/x86/crypto/ablk_helper.c b/arch/x86/crypto/ablk_helper.c
deleted file mode 100644
index 43282fe04a8b..000000000000
--- a/arch/x86/crypto/ablk_helper.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * Shared async block cipher helpers
- *
- * Copyright (c) 2012 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
- *
- * Based on aesni-intel_glue.c by:
- *  Copyright (C) 2008, Intel Corp.
- *    Author: Huang Ying <ying.huang@intel.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
- * USA
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/crypto.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <crypto/algapi.h>
-#include <crypto/cryptd.h>
-#include <asm/i387.h>
-#include <asm/crypto/ablk_helper.h>
-
-int ablk_set_key(struct crypto_ablkcipher *tfm, const u8 *key,
-		 unsigned int key_len)
-{
-	struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm);
-	struct crypto_ablkcipher *child = &ctx->cryptd_tfm->base;
-	int err;
-
-	crypto_ablkcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
-	crypto_ablkcipher_set_flags(child, crypto_ablkcipher_get_flags(tfm)
-				    & CRYPTO_TFM_REQ_MASK);
-	err = crypto_ablkcipher_setkey(child, key, key_len);
-	crypto_ablkcipher_set_flags(tfm, crypto_ablkcipher_get_flags(child)
-				    & CRYPTO_TFM_RES_MASK);
-	return err;
-}
-EXPORT_SYMBOL_GPL(ablk_set_key);
-
-int __ablk_encrypt(struct ablkcipher_request *req)
-{
-	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
-	struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm);
-	struct blkcipher_desc desc;
-
-	desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm);
-	desc.info = req->info;
-	desc.flags = 0;
-
-	return crypto_blkcipher_crt(desc.tfm)->encrypt(
-		&desc, req->dst, req->src, req->nbytes);
-}
-EXPORT_SYMBOL_GPL(__ablk_encrypt);
-
-int ablk_encrypt(struct ablkcipher_request *req)
-{
-	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
-	struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm);
-
-	if (!irq_fpu_usable()) {
-		struct ablkcipher_request *cryptd_req =
-			ablkcipher_request_ctx(req);
-
-		memcpy(cryptd_req, req, sizeof(*req));
-		ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
-
-		return crypto_ablkcipher_encrypt(cryptd_req);
-	} else {
-		return __ablk_encrypt(req);
-	}
-}
-EXPORT_SYMBOL_GPL(ablk_encrypt);
-
-int ablk_decrypt(struct ablkcipher_request *req)
-{
-	struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
-	struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm);
-
-	if (!irq_fpu_usable()) {
-		struct ablkcipher_request *cryptd_req =
-			ablkcipher_request_ctx(req);
-
-		memcpy(cryptd_req, req, sizeof(*req));
-		ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
-
-		return crypto_ablkcipher_decrypt(cryptd_req);
-	} else {
-		struct blkcipher_desc desc;
-
-		desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm);
-		desc.info = req->info;
-		desc.flags = 0;
-
-		return crypto_blkcipher_crt(desc.tfm)->decrypt(
-			&desc, req->dst, req->src, req->nbytes);
-	}
-}
-EXPORT_SYMBOL_GPL(ablk_decrypt);
-
-void ablk_exit(struct crypto_tfm *tfm)
-{
-	struct async_helper_ctx *ctx = crypto_tfm_ctx(tfm);
-
-	cryptd_free_ablkcipher(ctx->cryptd_tfm);
-}
-EXPORT_SYMBOL_GPL(ablk_exit);
-
-int ablk_init_common(struct crypto_tfm *tfm, const char *drv_name)
-{
-	struct async_helper_ctx *ctx = crypto_tfm_ctx(tfm);
-	struct cryptd_ablkcipher *cryptd_tfm;
-
-	cryptd_tfm = cryptd_alloc_ablkcipher(drv_name, 0, 0);
-	if (IS_ERR(cryptd_tfm))
-		return PTR_ERR(cryptd_tfm);
-
-	ctx->cryptd_tfm = cryptd_tfm;
-	tfm->crt_ablkcipher.reqsize = sizeof(struct ablkcipher_request) +
-		crypto_ablkcipher_reqsize(&cryptd_tfm->base);
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(ablk_init_common);
-
-int ablk_init(struct crypto_tfm *tfm)
-{
-	char drv_name[CRYPTO_MAX_ALG_NAME];
-
-	snprintf(drv_name, sizeof(drv_name), "__driver-%s",
-					crypto_tfm_alg_driver_name(tfm));
-
-	return ablk_init_common(tfm, drv_name);
-}
-EXPORT_SYMBOL_GPL(ablk_init);
-
-MODULE_LICENSE("GPL");
diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c
index f80e668785c0..835488b745ee 100644
--- a/arch/x86/crypto/aesni-intel_glue.c
+++ b/arch/x86/crypto/aesni-intel_glue.c
@@ -34,7 +34,7 @@
 #include <asm/cpu_device_id.h>
 #include <asm/i387.h>
 #include <asm/crypto/aes.h>
-#include <asm/crypto/ablk_helper.h>
+#include <crypto/ablk_helper.h>
 #include <crypto/scatterwalk.h>
 #include <crypto/internal/aead.h>
 #include <linux/workqueue.h>
diff --git a/arch/x86/crypto/camellia_aesni_avx2_glue.c b/arch/x86/crypto/camellia_aesni_avx2_glue.c
index 414fe5d7946b..4209a76fcdaa 100644
--- a/arch/x86/crypto/camellia_aesni_avx2_glue.c
+++ b/arch/x86/crypto/camellia_aesni_avx2_glue.c
@@ -14,6 +14,7 @@
 #include <linux/types.h>
 #include <linux/crypto.h>
 #include <linux/err.h>
+#include <crypto/ablk_helper.h>
 #include <crypto/algapi.h>
 #include <crypto/ctr.h>
 #include <crypto/lrw.h>
@@ -21,7 +22,6 @@
 #include <asm/xcr.h>
 #include <asm/xsave.h>
 #include <asm/crypto/camellia.h>
-#include <asm/crypto/ablk_helper.h>
 #include <asm/crypto/glue_helper.h>
 
 #define CAMELLIA_AESNI_PARALLEL_BLOCKS 16
diff --git a/arch/x86/crypto/camellia_aesni_avx_glue.c b/arch/x86/crypto/camellia_aesni_avx_glue.c
index 37fd0c0a81ea..87a041a10f4a 100644
--- a/arch/x86/crypto/camellia_aesni_avx_glue.c
+++ b/arch/x86/crypto/camellia_aesni_avx_glue.c
@@ -14,6 +14,7 @@
 #include <linux/types.h>
 #include <linux/crypto.h>
 #include <linux/err.h>
+#include <crypto/ablk_helper.h>
 #include <crypto/algapi.h>
 #include <crypto/ctr.h>
 #include <crypto/lrw.h>
@@ -21,7 +22,6 @@
 #include <asm/xcr.h>
 #include <asm/xsave.h>
 #include <asm/crypto/camellia.h>
-#include <asm/crypto/ablk_helper.h>
 #include <asm/crypto/glue_helper.h>
 
 #define CAMELLIA_AESNI_PARALLEL_BLOCKS 16
diff --git a/arch/x86/crypto/cast5_avx_glue.c b/arch/x86/crypto/cast5_avx_glue.c
index c6631813dc11..e6a3700489b9 100644
--- a/arch/x86/crypto/cast5_avx_glue.c
+++ b/arch/x86/crypto/cast5_avx_glue.c
@@ -26,13 +26,13 @@
 #include <linux/types.h>
 #include <linux/crypto.h>
 #include <linux/err.h>
+#include <crypto/ablk_helper.h>
 #include <crypto/algapi.h>
 #include <crypto/cast5.h>
 #include <crypto/cryptd.h>
 #include <crypto/ctr.h>
 #include <asm/xcr.h>
 #include <asm/xsave.h>
-#include <asm/crypto/ablk_helper.h>
 #include <asm/crypto/glue_helper.h>
 
 #define CAST5_PARALLEL_BLOCKS 16
diff --git a/arch/x86/crypto/cast6_avx_glue.c b/arch/x86/crypto/cast6_avx_glue.c
index 8d0dfb86a559..09f3677393e4 100644
--- a/arch/x86/crypto/cast6_avx_glue.c
+++ b/arch/x86/crypto/cast6_avx_glue.c
@@ -28,6 +28,7 @@
 #include <linux/types.h>
 #include <linux/crypto.h>
 #include <linux/err.h>
+#include <crypto/ablk_helper.h>
 #include <crypto/algapi.h>
 #include <crypto/cast6.h>
 #include <crypto/cryptd.h>
@@ -37,7 +38,6 @@
 #include <crypto/xts.h>
 #include <asm/xcr.h>
 #include <asm/xsave.h>
-#include <asm/crypto/ablk_helper.h>
 #include <asm/crypto/glue_helper.h>
 
 #define CAST6_PARALLEL_BLOCKS 8
diff --git a/arch/x86/crypto/serpent_avx2_glue.c b/arch/x86/crypto/serpent_avx2_glue.c
index 23aabc6c20a5..2fae489b1524 100644
--- a/arch/x86/crypto/serpent_avx2_glue.c
+++ b/arch/x86/crypto/serpent_avx2_glue.c
@@ -14,6 +14,7 @@
 #include <linux/types.h>
 #include <linux/crypto.h>
 #include <linux/err.h>
+#include <crypto/ablk_helper.h>
 #include <crypto/algapi.h>
 #include <crypto/ctr.h>
 #include <crypto/lrw.h>
@@ -22,7 +23,6 @@
 #include <asm/xcr.h>
 #include <asm/xsave.h>
 #include <asm/crypto/serpent-avx.h>
-#include <asm/crypto/ablk_helper.h>
 #include <asm/crypto/glue_helper.h>
 
 #define SERPENT_AVX2_PARALLEL_BLOCKS 16
diff --git a/arch/x86/crypto/serpent_avx_glue.c b/arch/x86/crypto/serpent_avx_glue.c
index 9ae83cf8d21e..ff4870870972 100644
--- a/arch/x86/crypto/serpent_avx_glue.c
+++ b/arch/x86/crypto/serpent_avx_glue.c
@@ -28,6 +28,7 @@
 #include <linux/types.h>
 #include <linux/crypto.h>
 #include <linux/err.h>
+#include <crypto/ablk_helper.h>
 #include <crypto/algapi.h>
 #include <crypto/serpent.h>
 #include <crypto/cryptd.h>
@@ -38,7 +39,6 @@
 #include <asm/xcr.h>
 #include <asm/xsave.h>
 #include <asm/crypto/serpent-avx.h>
-#include <asm/crypto/ablk_helper.h>
 #include <asm/crypto/glue_helper.h>
 
 /* 8-way parallel cipher functions */
diff --git a/arch/x86/crypto/serpent_sse2_glue.c b/arch/x86/crypto/serpent_sse2_glue.c
index 97a356ece24d..8c95f8637306 100644
--- a/arch/x86/crypto/serpent_sse2_glue.c
+++ b/arch/x86/crypto/serpent_sse2_glue.c
@@ -34,6 +34,7 @@
 #include <linux/types.h>
 #include <linux/crypto.h>
 #include <linux/err.h>
+#include <crypto/ablk_helper.h>
 #include <crypto/algapi.h>
 #include <crypto/serpent.h>
 #include <crypto/cryptd.h>
@@ -42,7 +43,6 @@
 #include <crypto/lrw.h>
 #include <crypto/xts.h>
 #include <asm/crypto/serpent-sse2.h>
-#include <asm/crypto/ablk_helper.h>
 #include <asm/crypto/glue_helper.h>
 
 static void serpent_decrypt_cbc_xway(void *ctx, u128 *dst, const u128 *src)
diff --git a/arch/x86/crypto/twofish_avx_glue.c b/arch/x86/crypto/twofish_avx_glue.c
index a62ba541884e..4e3c665be129 100644
--- a/arch/x86/crypto/twofish_avx_glue.c
+++ b/arch/x86/crypto/twofish_avx_glue.c
@@ -28,6 +28,7 @@
 #include <linux/types.h>
 #include <linux/crypto.h>
 #include <linux/err.h>
+#include <crypto/ablk_helper.h>
 #include <crypto/algapi.h>
 #include <crypto/twofish.h>
 #include <crypto/cryptd.h>
@@ -39,7 +40,6 @@
 #include <asm/xcr.h>
 #include <asm/xsave.h>
 #include <asm/crypto/twofish.h>
-#include <asm/crypto/ablk_helper.h>
 #include <asm/crypto/glue_helper.h>
 #include <crypto/scatterwalk.h>
 #include <linux/workqueue.h>
diff --git a/arch/x86/include/asm/crypto/ablk_helper.h b/arch/x86/include/asm/crypto/ablk_helper.h
deleted file mode 100644
index 4f93df50c23e..000000000000
--- a/arch/x86/include/asm/crypto/ablk_helper.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Shared async block cipher helpers
- */
-
-#ifndef _CRYPTO_ABLK_HELPER_H
-#define _CRYPTO_ABLK_HELPER_H
-
-#include <linux/crypto.h>
-#include <linux/kernel.h>
-#include <crypto/cryptd.h>
-
-struct async_helper_ctx {
-	struct cryptd_ablkcipher *cryptd_tfm;
-};
-
-extern int ablk_set_key(struct crypto_ablkcipher *tfm, const u8 *key,
-			unsigned int key_len);
-
-extern int __ablk_encrypt(struct ablkcipher_request *req);
-
-extern int ablk_encrypt(struct ablkcipher_request *req);
-
-extern int ablk_decrypt(struct ablkcipher_request *req);
-
-extern void ablk_exit(struct crypto_tfm *tfm);
-
-extern int ablk_init_common(struct crypto_tfm *tfm, const char *drv_name);
-
-extern int ablk_init(struct crypto_tfm *tfm);
-
-#endif /* _CRYPTO_ABLK_HELPER_H */
diff --git a/arch/x86/include/asm/simd.h b/arch/x86/include/asm/simd.h
new file mode 100644
index 000000000000..ee80b92f0096
--- /dev/null
+++ b/arch/x86/include/asm/simd.h
@@ -0,0 +1,11 @@
+
+#include <asm/i387.h>
+
+/*
+ * may_use_simd - whether it is allowable at this time to issue SIMD
+ *                instructions or access the SIMD register file
+ */
+static __must_check inline bool may_use_simd(void)
+{
+	return irq_fpu_usable();
+}
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 8179ae62cec0..7c0a4c5de075 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -174,11 +174,6 @@ config CRYPTO_TEST
 	help
 	  Quick & dirty crypto test module.
 
-config CRYPTO_ABLK_HELPER_X86
-	tristate
-	depends on X86
-	select CRYPTO_CRYPTD
-
 config CRYPTO_ABLK_HELPER
 	tristate
 	select CRYPTO_CRYPTD
@@ -699,7 +694,7 @@ config CRYPTO_AES_NI_INTEL
 	select CRYPTO_AES_X86_64 if 64BIT
 	select CRYPTO_AES_586 if !64BIT
 	select CRYPTO_CRYPTD
-	select CRYPTO_ABLK_HELPER_X86
+	select CRYPTO_ABLK_HELPER
 	select CRYPTO_ALGAPI
 	select CRYPTO_GLUE_HELPER_X86 if 64BIT
 	select CRYPTO_LRW
@@ -883,7 +878,7 @@ config CRYPTO_CAMELLIA_AESNI_AVX_X86_64
 	depends on CRYPTO
 	select CRYPTO_ALGAPI
 	select CRYPTO_CRYPTD
-	select CRYPTO_ABLK_HELPER_X86
+	select CRYPTO_ABLK_HELPER
 	select CRYPTO_GLUE_HELPER_X86
 	select CRYPTO_CAMELLIA_X86_64
 	select CRYPTO_LRW
@@ -905,7 +900,7 @@ config CRYPTO_CAMELLIA_AESNI_AVX2_X86_64
 	depends on CRYPTO
 	select CRYPTO_ALGAPI
 	select CRYPTO_CRYPTD
-	select CRYPTO_ABLK_HELPER_X86
+	select CRYPTO_ABLK_HELPER
 	select CRYPTO_GLUE_HELPER_X86
 	select CRYPTO_CAMELLIA_X86_64
 	select CRYPTO_CAMELLIA_AESNI_AVX_X86_64
@@ -957,7 +952,7 @@ config CRYPTO_CAST5_AVX_X86_64
 	depends on X86 && 64BIT
 	select CRYPTO_ALGAPI
 	select CRYPTO_CRYPTD
-	select CRYPTO_ABLK_HELPER_X86
+	select CRYPTO_ABLK_HELPER
 	select CRYPTO_CAST_COMMON
 	select CRYPTO_CAST5
 	help
@@ -980,7 +975,7 @@ config CRYPTO_CAST6_AVX_X86_64
 	depends on X86 && 64BIT
 	select CRYPTO_ALGAPI
 	select CRYPTO_CRYPTD
-	select CRYPTO_ABLK_HELPER_X86
+	select CRYPTO_ABLK_HELPER
 	select CRYPTO_GLUE_HELPER_X86
 	select CRYPTO_CAST_COMMON
 	select CRYPTO_CAST6
@@ -1098,7 +1093,7 @@ config CRYPTO_SERPENT_SSE2_X86_64
 	depends on X86 && 64BIT
 	select CRYPTO_ALGAPI
 	select CRYPTO_CRYPTD
-	select CRYPTO_ABLK_HELPER_X86
+	select CRYPTO_ABLK_HELPER
 	select CRYPTO_GLUE_HELPER_X86
 	select CRYPTO_SERPENT
 	select CRYPTO_LRW
@@ -1120,7 +1115,7 @@ config CRYPTO_SERPENT_SSE2_586
 	depends on X86 && !64BIT
 	select CRYPTO_ALGAPI
 	select CRYPTO_CRYPTD
-	select CRYPTO_ABLK_HELPER_X86
+	select CRYPTO_ABLK_HELPER
 	select CRYPTO_GLUE_HELPER_X86
 	select CRYPTO_SERPENT
 	select CRYPTO_LRW
@@ -1142,7 +1137,7 @@ config CRYPTO_SERPENT_AVX_X86_64
 	depends on X86 && 64BIT
 	select CRYPTO_ALGAPI
 	select CRYPTO_CRYPTD
-	select CRYPTO_ABLK_HELPER_X86
+	select CRYPTO_ABLK_HELPER
 	select CRYPTO_GLUE_HELPER_X86
 	select CRYPTO_SERPENT
 	select CRYPTO_LRW
@@ -1164,7 +1159,7 @@ config CRYPTO_SERPENT_AVX2_X86_64
 	depends on X86 && 64BIT
 	select CRYPTO_ALGAPI
 	select CRYPTO_CRYPTD
-	select CRYPTO_ABLK_HELPER_X86
+	select CRYPTO_ABLK_HELPER
 	select CRYPTO_GLUE_HELPER_X86
 	select CRYPTO_SERPENT
 	select CRYPTO_SERPENT_AVX_X86_64
@@ -1280,7 +1275,7 @@ config CRYPTO_TWOFISH_AVX_X86_64
 	depends on X86 && 64BIT
 	select CRYPTO_ALGAPI
 	select CRYPTO_CRYPTD
-	select CRYPTO_ABLK_HELPER_X86
+	select CRYPTO_ABLK_HELPER
 	select CRYPTO_GLUE_HELPER_X86
 	select CRYPTO_TWOFISH_COMMON
 	select CRYPTO_TWOFISH_X86_64
-- 
cgit 


From 05a27928f37b31ea8b844e3b0c623d7f46451145 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Sun, 22 Sep 2013 14:42:25 -0300
Subject: crypto: dcp - Use devm_ioremap_resource()

Using devm_ioremap_resource() can make the code simpler and smaller.

When devm_ioremap_resource() is used there is no need to explicitely check the
error returned by platform_get_resource().

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/dcp.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/crypto/dcp.c b/drivers/crypto/dcp.c
index a8a7dd4b0d25..90a7cb7fdc9d 100644
--- a/drivers/crypto/dcp.c
+++ b/drivers/crypto/dcp.c
@@ -733,12 +733,7 @@ static int dcp_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, dev);
 
 	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!r) {
-		dev_err(&pdev->dev, "failed to get IORESOURCE_MEM\n");
-		return -ENXIO;
-	}
-	dev->dcp_regs_base = devm_ioremap(&pdev->dev, r->start,
-					  resource_size(r));
+	dev->dcp_regs_base = devm_ioremap_resource(&pdev->dev, r);
 
 	dcp_set(dev, DCP_CTRL_SFRST, DCP_REG_CTRL);
 	udelay(10);
-- 
cgit 


From 0ff647551b4282eee90a6d944c9fccde07845db4 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Sun, 22 Sep 2013 14:42:26 -0300
Subject: crypto: dcp - Use devm_request_irq()

Using Use devm_request_irq() can make the code smaller and simpler, as we do
not need to call free_irq() in the probe error path and in the remove function.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/dcp.c | 22 +++++++---------------
 1 file changed, 7 insertions(+), 15 deletions(-)

diff --git a/drivers/crypto/dcp.c b/drivers/crypto/dcp.c
index 90a7cb7fdc9d..93ab753d610d 100644
--- a/drivers/crypto/dcp.c
+++ b/drivers/crypto/dcp.c
@@ -757,7 +757,8 @@ static int dcp_probe(struct platform_device *pdev)
 		return -EIO;
 	}
 	dev->dcp_vmi_irq = r->start;
-	ret = request_irq(dev->dcp_vmi_irq, dcp_vmi_irq, 0, "dcp", dev);
+	ret = devm_request_irq(&pdev->dev, dev->dcp_vmi_irq, dcp_vmi_irq, 0,
+			       "dcp", dev);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "can't request_irq (0)\n");
 		return -EIO;
@@ -766,15 +767,14 @@ static int dcp_probe(struct platform_device *pdev)
 	r = platform_get_resource(pdev, IORESOURCE_IRQ, 1);
 	if (!r) {
 		dev_err(&pdev->dev, "can't get IRQ resource (1)\n");
-		ret = -EIO;
-		goto err_free_irq0;
+		return -EIO;
 	}
 	dev->dcp_irq = r->start;
-	ret = request_irq(dev->dcp_irq, dcp_irq, 0, "dcp", dev);
+	ret = devm_request_irq(&pdev->dev, dev->dcp_irq, dcp_irq, 0, "dcp",
+			       dev);
 	if (ret != 0) {
 		dev_err(&pdev->dev, "can't request_irq (1)\n");
-		ret = -EIO;
-		goto err_free_irq0;
+		return -EIO;
 	}
 
 	dev->hw_pkg[0] = dma_alloc_coherent(&pdev->dev,
@@ -783,8 +783,7 @@ static int dcp_probe(struct platform_device *pdev)
 			GFP_KERNEL);
 	if (!dev->hw_pkg[0]) {
 		dev_err(&pdev->dev, "Could not allocate hw descriptors\n");
-		ret = -ENOMEM;
-		goto err_free_irq1;
+		return -ENOMEM;
 	}
 
 	for (i = 1; i < DCP_MAX_PKG; i++) {
@@ -849,10 +848,6 @@ err_free_hw_packet:
 	dma_free_coherent(&pdev->dev, DCP_MAX_PKG *
 		sizeof(struct dcp_hw_packet), dev->hw_pkg[0],
 		dev->hw_phys_pkg);
-err_free_irq1:
-	free_irq(dev->dcp_irq, dev);
-err_free_irq0:
-	free_irq(dev->dcp_vmi_irq, dev);
 
 	return ret;
 }
@@ -870,9 +865,6 @@ static int dcp_remove(struct platform_device *pdev)
 	dma_free_coherent(&pdev->dev, 2 * AES_KEYSIZE_128, dev->payload_base,
 			dev->payload_base_dma);
 
-	free_irq(dev->dcp_irq, dev);
-	free_irq(dev->dcp_vmi_irq, dev);
-
 	tasklet_kill(&dev->done_task);
 	tasklet_kill(&dev->queue_task);
 
-- 
cgit 


From 48e6dc1b2a1ad8186d48968d5018912bdacac744 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Sun, 22 Sep 2013 14:42:27 -0300
Subject: crypto: dcp - Fix the path for releasing the resources

tasklet_kill() is not being called in probe and the remove function releases
the resources in the wrong order.

Fix these issues.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/dcp.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/crypto/dcp.c b/drivers/crypto/dcp.c
index 93ab753d610d..7b77c8457854 100644
--- a/drivers/crypto/dcp.c
+++ b/drivers/crypto/dcp.c
@@ -842,6 +842,8 @@ err_unregister:
 	for (j = 0; j < i; j++)
 		crypto_unregister_alg(&algs[j]);
 err_free_key_iv:
+	tasklet_kill(&dev->done_task);
+	tasklet_kill(&dev->queue_task);
 	dma_free_coherent(&pdev->dev, 2 * AES_KEYSIZE_128, dev->payload_base,
 			dev->payload_base_dma);
 err_free_hw_packet:
@@ -858,20 +860,20 @@ static int dcp_remove(struct platform_device *pdev)
 	int j;
 	dev = platform_get_drvdata(pdev);
 
-	dma_free_coherent(&pdev->dev,
-			DCP_MAX_PKG * sizeof(struct dcp_hw_packet),
-			dev->hw_pkg[0],	dev->hw_phys_pkg);
+	misc_deregister(&dev->dcp_bootstream_misc);
 
-	dma_free_coherent(&pdev->dev, 2 * AES_KEYSIZE_128, dev->payload_base,
-			dev->payload_base_dma);
+	for (j = 0; j < ARRAY_SIZE(algs); j++)
+		crypto_unregister_alg(&algs[j]);
 
 	tasklet_kill(&dev->done_task);
 	tasklet_kill(&dev->queue_task);
 
-	for (j = 0; j < ARRAY_SIZE(algs); j++)
-		crypto_unregister_alg(&algs[j]);
+	dma_free_coherent(&pdev->dev, 2 * AES_KEYSIZE_128, dev->payload_base,
+			dev->payload_base_dma);
 
-	misc_deregister(&dev->dcp_bootstream_misc);
+	dma_free_coherent(&pdev->dev,
+			DCP_MAX_PKG * sizeof(struct dcp_hw_packet),
+			dev->hw_pkg[0],	dev->hw_phys_pkg);
 
 	return 0;
 }
-- 
cgit 


From 5c9f30236f53f3fbee170e2452dfa0e5dce4727b Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:33:32 -0700
Subject: tcp.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/tcp.h | 424 +++++++++++++++++++++++++++---------------------------
 1 file changed, 208 insertions(+), 216 deletions(-)

diff --git a/include/net/tcp.h b/include/net/tcp.h
index b1aa324c5e65..0e47551e9bdb 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -50,7 +50,7 @@
 extern struct inet_hashinfo tcp_hashinfo;
 
 extern struct percpu_counter tcp_orphan_count;
-extern void tcp_time_wait(struct sock *sk, int state, int timeo);
+void tcp_time_wait(struct sock *sk, int state, int timeo);
 
 #define MAX_TCP_HEADER	(128 + MAX_HEADER)
 #define MAX_TCP_OPTION_SPACE 40
@@ -325,7 +325,7 @@ static inline bool tcp_too_many_orphans(struct sock *sk, int shift)
 	return false;
 }
 
-extern bool tcp_check_oom(struct sock *sk, int shift);
+bool tcp_check_oom(struct sock *sk, int shift);
 
 /* syncookies: remember time of last synqueue overflow */
 static inline void tcp_synq_overflow(struct sock *sk)
@@ -348,38 +348,38 @@ extern struct proto tcp_prot;
 #define TCP_ADD_STATS_USER(net, field, val) SNMP_ADD_STATS_USER((net)->mib.tcp_statistics, field, val)
 #define TCP_ADD_STATS(net, field, val)	SNMP_ADD_STATS((net)->mib.tcp_statistics, field, val)
 
-extern void tcp_init_mem(struct net *net);
-
-extern void tcp_tasklet_init(void);
-
-extern void tcp_v4_err(struct sk_buff *skb, u32);
-
-extern void tcp_shutdown (struct sock *sk, int how);
-
-extern void tcp_v4_early_demux(struct sk_buff *skb);
-extern int tcp_v4_rcv(struct sk_buff *skb);
-
-extern int tcp_v4_tw_remember_stamp(struct inet_timewait_sock *tw);
-extern int tcp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
-		       size_t size);
-extern int tcp_sendpage(struct sock *sk, struct page *page, int offset,
-			size_t size, int flags);
-extern void tcp_release_cb(struct sock *sk);
-extern void tcp_wfree(struct sk_buff *skb);
-extern void tcp_write_timer_handler(struct sock *sk);
-extern void tcp_delack_timer_handler(struct sock *sk);
-extern int tcp_ioctl(struct sock *sk, int cmd, unsigned long arg);
-extern int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
-				 const struct tcphdr *th, unsigned int len);
-extern void tcp_rcv_established(struct sock *sk, struct sk_buff *skb,
-				const struct tcphdr *th, unsigned int len);
-extern void tcp_rcv_space_adjust(struct sock *sk);
-extern void tcp_cleanup_rbuf(struct sock *sk, int copied);
-extern int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp);
-extern void tcp_twsk_destructor(struct sock *sk);
-extern ssize_t tcp_splice_read(struct socket *sk, loff_t *ppos,
-			       struct pipe_inode_info *pipe, size_t len,
-			       unsigned int flags);
+void tcp_init_mem(struct net *net);
+
+void tcp_tasklet_init(void);
+
+void tcp_v4_err(struct sk_buff *skb, u32);
+
+void tcp_shutdown(struct sock *sk, int how);
+
+void tcp_v4_early_demux(struct sk_buff *skb);
+int tcp_v4_rcv(struct sk_buff *skb);
+
+int tcp_v4_tw_remember_stamp(struct inet_timewait_sock *tw);
+int tcp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+		size_t size);
+int tcp_sendpage(struct sock *sk, struct page *page, int offset, size_t size,
+		 int flags);
+void tcp_release_cb(struct sock *sk);
+void tcp_wfree(struct sk_buff *skb);
+void tcp_write_timer_handler(struct sock *sk);
+void tcp_delack_timer_handler(struct sock *sk);
+int tcp_ioctl(struct sock *sk, int cmd, unsigned long arg);
+int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
+			  const struct tcphdr *th, unsigned int len);
+void tcp_rcv_established(struct sock *sk, struct sk_buff *skb,
+			 const struct tcphdr *th, unsigned int len);
+void tcp_rcv_space_adjust(struct sock *sk);
+void tcp_cleanup_rbuf(struct sock *sk, int copied);
+int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp);
+void tcp_twsk_destructor(struct sock *sk);
+ssize_t tcp_splice_read(struct socket *sk, loff_t *ppos,
+			struct pipe_inode_info *pipe, size_t len,
+			unsigned int flags);
 
 static inline void tcp_dec_quickack_mode(struct sock *sk,
 					 const unsigned int pkts)
@@ -409,66 +409,65 @@ enum tcp_tw_status {
 };
 
 
-extern enum tcp_tw_status tcp_timewait_state_process(struct inet_timewait_sock *tw,
-						     struct sk_buff *skb,
-						     const struct tcphdr *th);
-extern struct sock * tcp_check_req(struct sock *sk,struct sk_buff *skb,
-				   struct request_sock *req,
-				   struct request_sock **prev,
-				   bool fastopen);
-extern int tcp_child_process(struct sock *parent, struct sock *child,
-			     struct sk_buff *skb);
-extern void tcp_enter_loss(struct sock *sk, int how);
-extern void tcp_clear_retrans(struct tcp_sock *tp);
-extern void tcp_update_metrics(struct sock *sk);
-extern void tcp_init_metrics(struct sock *sk);
-extern void tcp_metrics_init(void);
-extern bool tcp_peer_is_proven(struct request_sock *req, struct dst_entry *dst, bool paws_check);
-extern bool tcp_remember_stamp(struct sock *sk);
-extern bool tcp_tw_remember_stamp(struct inet_timewait_sock *tw);
-extern void tcp_fetch_timewait_stamp(struct sock *sk, struct dst_entry *dst);
-extern void tcp_disable_fack(struct tcp_sock *tp);
-extern void tcp_close(struct sock *sk, long timeout);
-extern void tcp_init_sock(struct sock *sk);
-extern unsigned int tcp_poll(struct file * file, struct socket *sock,
-			     struct poll_table_struct *wait);
-extern int tcp_getsockopt(struct sock *sk, int level, int optname,
+enum tcp_tw_status tcp_timewait_state_process(struct inet_timewait_sock *tw,
+					      struct sk_buff *skb,
+					      const struct tcphdr *th);
+struct sock *tcp_check_req(struct sock *sk, struct sk_buff *skb,
+			   struct request_sock *req, struct request_sock **prev,
+			   bool fastopen);
+int tcp_child_process(struct sock *parent, struct sock *child,
+		      struct sk_buff *skb);
+void tcp_enter_loss(struct sock *sk, int how);
+void tcp_clear_retrans(struct tcp_sock *tp);
+void tcp_update_metrics(struct sock *sk);
+void tcp_init_metrics(struct sock *sk);
+void tcp_metrics_init(void);
+bool tcp_peer_is_proven(struct request_sock *req, struct dst_entry *dst,
+			bool paws_check);
+bool tcp_remember_stamp(struct sock *sk);
+bool tcp_tw_remember_stamp(struct inet_timewait_sock *tw);
+void tcp_fetch_timewait_stamp(struct sock *sk, struct dst_entry *dst);
+void tcp_disable_fack(struct tcp_sock *tp);
+void tcp_close(struct sock *sk, long timeout);
+void tcp_init_sock(struct sock *sk);
+unsigned int tcp_poll(struct file *file, struct socket *sock,
+		      struct poll_table_struct *wait);
+int tcp_getsockopt(struct sock *sk, int level, int optname,
+		   char __user *optval, int __user *optlen);
+int tcp_setsockopt(struct sock *sk, int level, int optname,
+		   char __user *optval, unsigned int optlen);
+int compat_tcp_getsockopt(struct sock *sk, int level, int optname,
 			  char __user *optval, int __user *optlen);
-extern int tcp_setsockopt(struct sock *sk, int level, int optname,
+int compat_tcp_setsockopt(struct sock *sk, int level, int optname,
 			  char __user *optval, unsigned int optlen);
-extern int compat_tcp_getsockopt(struct sock *sk, int level, int optname,
-				 char __user *optval, int __user *optlen);
-extern int compat_tcp_setsockopt(struct sock *sk, int level, int optname,
-				 char __user *optval, unsigned int optlen);
-extern void tcp_set_keepalive(struct sock *sk, int val);
-extern void tcp_syn_ack_timeout(struct sock *sk, struct request_sock *req);
-extern int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
-		       size_t len, int nonblock, int flags, int *addr_len);
-extern void tcp_parse_options(const struct sk_buff *skb,
-			      struct tcp_options_received *opt_rx,
-			      int estab, struct tcp_fastopen_cookie *foc);
-extern const u8 *tcp_parse_md5sig_option(const struct tcphdr *th);
+void tcp_set_keepalive(struct sock *sk, int val);
+void tcp_syn_ack_timeout(struct sock *sk, struct request_sock *req);
+int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+		size_t len, int nonblock, int flags, int *addr_len);
+void tcp_parse_options(const struct sk_buff *skb,
+		       struct tcp_options_received *opt_rx,
+		       int estab, struct tcp_fastopen_cookie *foc);
+const u8 *tcp_parse_md5sig_option(const struct tcphdr *th);
 
 /*
  *	TCP v4 functions exported for the inet6 API
  */
 
-extern void tcp_v4_send_check(struct sock *sk, struct sk_buff *skb);
-extern int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb);
-extern struct sock * tcp_create_openreq_child(struct sock *sk,
-					      struct request_sock *req,
-					      struct sk_buff *skb);
-extern struct sock * tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
-					  struct request_sock *req,
-					  struct dst_entry *dst);
-extern int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb);
-extern int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr,
-			  int addr_len);
-extern int tcp_connect(struct sock *sk);
-extern struct sk_buff * tcp_make_synack(struct sock *sk, struct dst_entry *dst,
-					struct request_sock *req,
-					struct tcp_fastopen_cookie *foc);
-extern int tcp_disconnect(struct sock *sk, int flags);
+void tcp_v4_send_check(struct sock *sk, struct sk_buff *skb);
+int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb);
+struct sock *tcp_create_openreq_child(struct sock *sk,
+				      struct request_sock *req,
+				      struct sk_buff *skb);
+struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
+				  struct request_sock *req,
+				  struct dst_entry *dst);
+int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb);
+int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len);
+int tcp_connect(struct sock *sk);
+struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst,
+				struct request_sock *req,
+				struct tcp_fastopen_cookie *foc);
+int tcp_disconnect(struct sock *sk, int flags);
 
 void tcp_connect_init(struct sock *sk);
 void tcp_finish_connect(struct sock *sk, struct sk_buff *skb);
@@ -477,15 +476,14 @@ void inet_sk_rx_dst_set(struct sock *sk, const struct sk_buff *skb);
 
 /* From syncookies.c */
 extern __u32 syncookie_secret[2][16-4+SHA_DIGEST_WORDS];
-extern int __cookie_v4_check(const struct iphdr *iph, const struct tcphdr *th,
-			     u32 cookie);
-extern struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb, 
-				    struct ip_options *opt);
+int __cookie_v4_check(const struct iphdr *iph, const struct tcphdr *th,
+		      u32 cookie);
+struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
+			     struct ip_options *opt);
 #ifdef CONFIG_SYN_COOKIES
-extern u32 __cookie_v4_init_sequence(const struct iphdr *iph,
-				     const struct tcphdr *th, u16 *mssp);
-extern __u32 cookie_v4_init_sequence(struct sock *sk, struct sk_buff *skb, 
-				     __u16 *mss);
+u32 __cookie_v4_init_sequence(const struct iphdr *iph, const struct tcphdr *th,
+			      u16 *mssp);
+__u32 cookie_v4_init_sequence(struct sock *sk, struct sk_buff *skb, __u16 *mss);
 #else
 static inline __u32 cookie_v4_init_sequence(struct sock *sk,
 					    struct sk_buff *skb,
@@ -495,19 +493,19 @@ static inline __u32 cookie_v4_init_sequence(struct sock *sk,
 }
 #endif
 
-extern __u32 cookie_init_timestamp(struct request_sock *req);
-extern bool cookie_check_timestamp(struct tcp_options_received *opt,
-				struct net *net, bool *ecn_ok);
+__u32 cookie_init_timestamp(struct request_sock *req);
+bool cookie_check_timestamp(struct tcp_options_received *opt, struct net *net,
+			    bool *ecn_ok);
 
 /* From net/ipv6/syncookies.c */
-extern int __cookie_v6_check(const struct ipv6hdr *iph, const struct tcphdr *th,
-			     u32 cookie);
-extern struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb);
+int __cookie_v6_check(const struct ipv6hdr *iph, const struct tcphdr *th,
+		      u32 cookie);
+struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb);
 #ifdef CONFIG_SYN_COOKIES
-extern u32 __cookie_v6_init_sequence(const struct ipv6hdr *iph,
-				     const struct tcphdr *th, u16 *mssp);
-extern __u32 cookie_v6_init_sequence(struct sock *sk, const struct sk_buff *skb,
-				     __u16 *mss);
+u32 __cookie_v6_init_sequence(const struct ipv6hdr *iph,
+			      const struct tcphdr *th, u16 *mssp);
+__u32 cookie_v6_init_sequence(struct sock *sk, const struct sk_buff *skb,
+			      __u16 *mss);
 #else
 static inline __u32 cookie_v6_init_sequence(struct sock *sk,
 					    struct sk_buff *skb,
@@ -518,47 +516,46 @@ static inline __u32 cookie_v6_init_sequence(struct sock *sk,
 #endif
 /* tcp_output.c */
 
-extern void __tcp_push_pending_frames(struct sock *sk, unsigned int cur_mss,
-				      int nonagle);
-extern bool tcp_may_send_now(struct sock *sk);
-extern int __tcp_retransmit_skb(struct sock *, struct sk_buff *);
-extern int tcp_retransmit_skb(struct sock *, struct sk_buff *);
-extern void tcp_retransmit_timer(struct sock *sk);
-extern void tcp_xmit_retransmit_queue(struct sock *);
-extern void tcp_simple_retransmit(struct sock *);
-extern int tcp_trim_head(struct sock *, struct sk_buff *, u32);
-extern int tcp_fragment(struct sock *, struct sk_buff *, u32, unsigned int);
-
-extern void tcp_send_probe0(struct sock *);
-extern void tcp_send_partial(struct sock *);
-extern int tcp_write_wakeup(struct sock *);
-extern void tcp_send_fin(struct sock *sk);
-extern void tcp_send_active_reset(struct sock *sk, gfp_t priority);
-extern int tcp_send_synack(struct sock *);
-extern bool tcp_syn_flood_action(struct sock *sk,
-				 const struct sk_buff *skb,
-				 const char *proto);
-extern void tcp_push_one(struct sock *, unsigned int mss_now);
-extern void tcp_send_ack(struct sock *sk);
-extern void tcp_send_delayed_ack(struct sock *sk);
-extern void tcp_send_loss_probe(struct sock *sk);
-extern bool tcp_schedule_loss_probe(struct sock *sk);
+void __tcp_push_pending_frames(struct sock *sk, unsigned int cur_mss,
+			       int nonagle);
+bool tcp_may_send_now(struct sock *sk);
+int __tcp_retransmit_skb(struct sock *, struct sk_buff *);
+int tcp_retransmit_skb(struct sock *, struct sk_buff *);
+void tcp_retransmit_timer(struct sock *sk);
+void tcp_xmit_retransmit_queue(struct sock *);
+void tcp_simple_retransmit(struct sock *);
+int tcp_trim_head(struct sock *, struct sk_buff *, u32);
+int tcp_fragment(struct sock *, struct sk_buff *, u32, unsigned int);
+
+void tcp_send_probe0(struct sock *);
+void tcp_send_partial(struct sock *);
+int tcp_write_wakeup(struct sock *);
+void tcp_send_fin(struct sock *sk);
+void tcp_send_active_reset(struct sock *sk, gfp_t priority);
+int tcp_send_synack(struct sock *);
+bool tcp_syn_flood_action(struct sock *sk, const struct sk_buff *skb,
+			  const char *proto);
+void tcp_push_one(struct sock *, unsigned int mss_now);
+void tcp_send_ack(struct sock *sk);
+void tcp_send_delayed_ack(struct sock *sk);
+void tcp_send_loss_probe(struct sock *sk);
+bool tcp_schedule_loss_probe(struct sock *sk);
 
 /* tcp_input.c */
-extern void tcp_cwnd_application_limited(struct sock *sk);
-extern void tcp_resume_early_retransmit(struct sock *sk);
-extern void tcp_rearm_rto(struct sock *sk);
-extern void tcp_reset(struct sock *sk);
+void tcp_cwnd_application_limited(struct sock *sk);
+void tcp_resume_early_retransmit(struct sock *sk);
+void tcp_rearm_rto(struct sock *sk);
+void tcp_reset(struct sock *sk);
 
 /* tcp_timer.c */
-extern void tcp_init_xmit_timers(struct sock *);
+void tcp_init_xmit_timers(struct sock *);
 static inline void tcp_clear_xmit_timers(struct sock *sk)
 {
 	inet_csk_clear_xmit_timers(sk);
 }
 
-extern unsigned int tcp_sync_mss(struct sock *sk, u32 pmtu);
-extern unsigned int tcp_current_mss(struct sock *sk);
+unsigned int tcp_sync_mss(struct sock *sk, u32 pmtu);
+unsigned int tcp_current_mss(struct sock *sk);
 
 /* Bound MSS / TSO packet size with the half of the window */
 static inline int tcp_bound_to_half_wnd(struct tcp_sock *tp, int pktsize)
@@ -584,20 +581,20 @@ static inline int tcp_bound_to_half_wnd(struct tcp_sock *tp, int pktsize)
 }
 
 /* tcp.c */
-extern void tcp_get_info(const struct sock *, struct tcp_info *);
+void tcp_get_info(const struct sock *, struct tcp_info *);
 
 /* Read 'sendfile()'-style from a TCP socket */
 typedef int (*sk_read_actor_t)(read_descriptor_t *, struct sk_buff *,
 				unsigned int, size_t);
-extern int tcp_read_sock(struct sock *sk, read_descriptor_t *desc,
-			 sk_read_actor_t recv_actor);
+int tcp_read_sock(struct sock *sk, read_descriptor_t *desc,
+		  sk_read_actor_t recv_actor);
 
-extern void tcp_initialize_rcv_mss(struct sock *sk);
+void tcp_initialize_rcv_mss(struct sock *sk);
 
-extern int tcp_mtu_to_mss(struct sock *sk, int pmtu);
-extern int tcp_mss_to_mtu(struct sock *sk, int mss);
-extern void tcp_mtup_init(struct sock *sk);
-extern void tcp_init_buffer_space(struct sock *sk);
+int tcp_mtu_to_mss(struct sock *sk, int pmtu);
+int tcp_mss_to_mtu(struct sock *sk, int mss);
+void tcp_mtup_init(struct sock *sk);
+void tcp_init_buffer_space(struct sock *sk);
 
 static inline void tcp_bound_rto(const struct sock *sk)
 {
@@ -610,7 +607,7 @@ static inline u32 __tcp_set_rto(const struct tcp_sock *tp)
 	return (tp->srtt >> 3) + tp->rttvar;
 }
 
-extern void tcp_set_rto(struct sock *sk);
+void tcp_set_rto(struct sock *sk);
 
 static inline void __tcp_fast_path_on(struct tcp_sock *tp, u32 snd_wnd)
 {
@@ -663,7 +660,7 @@ static inline u32 tcp_receive_window(const struct tcp_sock *tp)
  * scaling applied to the result.  The caller does these things
  * if necessary.  This is a "raw" window selection.
  */
-extern u32 __tcp_select_window(struct sock *sk);
+u32 __tcp_select_window(struct sock *sk);
 
 void tcp_send_window_probe(struct sock *sk);
 
@@ -800,24 +797,24 @@ struct tcp_congestion_ops {
 	struct module 	*owner;
 };
 
-extern int tcp_register_congestion_control(struct tcp_congestion_ops *type);
-extern void tcp_unregister_congestion_control(struct tcp_congestion_ops *type);
+int tcp_register_congestion_control(struct tcp_congestion_ops *type);
+void tcp_unregister_congestion_control(struct tcp_congestion_ops *type);
 
-extern void tcp_init_congestion_control(struct sock *sk);
-extern void tcp_cleanup_congestion_control(struct sock *sk);
-extern int tcp_set_default_congestion_control(const char *name);
-extern void tcp_get_default_congestion_control(char *name);
-extern void tcp_get_available_congestion_control(char *buf, size_t len);
-extern void tcp_get_allowed_congestion_control(char *buf, size_t len);
-extern int tcp_set_allowed_congestion_control(char *allowed);
-extern int tcp_set_congestion_control(struct sock *sk, const char *name);
-extern void tcp_slow_start(struct tcp_sock *tp);
-extern void tcp_cong_avoid_ai(struct tcp_sock *tp, u32 w);
+void tcp_init_congestion_control(struct sock *sk);
+void tcp_cleanup_congestion_control(struct sock *sk);
+int tcp_set_default_congestion_control(const char *name);
+void tcp_get_default_congestion_control(char *name);
+void tcp_get_available_congestion_control(char *buf, size_t len);
+void tcp_get_allowed_congestion_control(char *buf, size_t len);
+int tcp_set_allowed_congestion_control(char *allowed);
+int tcp_set_congestion_control(struct sock *sk, const char *name);
+void tcp_slow_start(struct tcp_sock *tp);
+void tcp_cong_avoid_ai(struct tcp_sock *tp, u32 w);
 
 extern struct tcp_congestion_ops tcp_init_congestion_ops;
-extern u32 tcp_reno_ssthresh(struct sock *sk);
-extern void tcp_reno_cong_avoid(struct sock *sk, u32 ack, u32 in_flight);
-extern u32 tcp_reno_min_cwnd(const struct sock *sk);
+u32 tcp_reno_ssthresh(struct sock *sk);
+void tcp_reno_cong_avoid(struct sock *sk, u32 ack, u32 in_flight);
+u32 tcp_reno_min_cwnd(const struct sock *sk);
 extern struct tcp_congestion_ops tcp_reno;
 
 static inline void tcp_set_ca_state(struct sock *sk, const u8 ca_state)
@@ -936,8 +933,8 @@ static inline __u32 tcp_current_ssthresh(const struct sock *sk)
 /* Use define here intentionally to get WARN_ON location shown at the caller */
 #define tcp_verify_left_out(tp)	WARN_ON(tcp_left_out(tp) > tp->packets_out)
 
-extern void tcp_enter_cwr(struct sock *sk, const int set_ssthresh);
-extern __u32 tcp_init_cwnd(const struct tcp_sock *tp, const struct dst_entry *dst);
+void tcp_enter_cwr(struct sock *sk, const int set_ssthresh);
+__u32 tcp_init_cwnd(const struct tcp_sock *tp, const struct dst_entry *dst);
 
 /* The maximum number of MSS of available cwnd for which TSO defers
  * sending if not using sysctl_tcp_tso_win_divisor.
@@ -963,7 +960,7 @@ static inline u32 tcp_wnd_end(const struct tcp_sock *tp)
 {
 	return tp->snd_una + tp->snd_wnd;
 }
-extern bool tcp_is_cwnd_limited(const struct sock *sk, u32 in_flight);
+bool tcp_is_cwnd_limited(const struct sock *sk, u32 in_flight);
 
 static inline void tcp_minshall_update(struct tcp_sock *tp, unsigned int mss,
 				       const struct sk_buff *skb)
@@ -1028,7 +1025,7 @@ static inline void tcp_prequeue_init(struct tcp_sock *tp)
 #endif
 }
 
-extern bool tcp_prequeue(struct sock *sk, struct sk_buff *skb);
+bool tcp_prequeue(struct sock *sk, struct sk_buff *skb);
 
 #undef STATE_TRACE
 
@@ -1039,9 +1036,9 @@ static const char *statename[]={
 	"Close Wait","Last ACK","Listen","Closing"
 };
 #endif
-extern void tcp_set_state(struct sock *sk, int state);
+void tcp_set_state(struct sock *sk, int state);
 
-extern void tcp_done(struct sock *sk);
+void tcp_done(struct sock *sk);
 
 static inline void tcp_sack_reset(struct tcp_options_received *rx_opt)
 {
@@ -1049,13 +1046,12 @@ static inline void tcp_sack_reset(struct tcp_options_received *rx_opt)
 	rx_opt->num_sacks = 0;
 }
 
-extern u32 tcp_default_init_rwnd(u32 mss);
+u32 tcp_default_init_rwnd(u32 mss);
 
 /* Determine a window scaling and initial window to offer. */
-extern void tcp_select_initial_window(int __space, __u32 mss,
-				      __u32 *rcv_wnd, __u32 *window_clamp,
-				      int wscale_ok, __u8 *rcv_wscale,
-				      __u32 init_rcv_wnd);
+void tcp_select_initial_window(int __space, __u32 mss, __u32 *rcv_wnd,
+			       __u32 *window_clamp, int wscale_ok,
+			       __u8 *rcv_wscale, __u32 init_rcv_wnd);
 
 static inline int tcp_win_from_space(int space)
 {
@@ -1099,7 +1095,7 @@ static inline void tcp_openreq_init(struct request_sock *req,
 	ireq->loc_port = tcp_hdr(skb)->dest;
 }
 
-extern void tcp_enter_memory_pressure(struct sock *sk);
+void tcp_enter_memory_pressure(struct sock *sk);
 
 static inline int keepalive_intvl_when(const struct tcp_sock *tp)
 {
@@ -1252,21 +1248,20 @@ struct tcp_md5sig_pool {
 };
 
 /* - functions */
-extern int tcp_v4_md5_hash_skb(char *md5_hash, struct tcp_md5sig_key *key,
-			       const struct sock *sk,
-			       const struct request_sock *req,
-			       const struct sk_buff *skb);
-extern int tcp_md5_do_add(struct sock *sk, const union tcp_md5_addr *addr,
-			  int family, const u8 *newkey,
-			  u8 newkeylen, gfp_t gfp);
-extern int tcp_md5_do_del(struct sock *sk, const union tcp_md5_addr *addr,
-			  int family);
-extern struct tcp_md5sig_key *tcp_v4_md5_lookup(struct sock *sk,
+int tcp_v4_md5_hash_skb(char *md5_hash, struct tcp_md5sig_key *key,
+			const struct sock *sk, const struct request_sock *req,
+			const struct sk_buff *skb);
+int tcp_md5_do_add(struct sock *sk, const union tcp_md5_addr *addr,
+		   int family, const u8 *newkey, u8 newkeylen, gfp_t gfp);
+int tcp_md5_do_del(struct sock *sk, const union tcp_md5_addr *addr,
+		   int family);
+struct tcp_md5sig_key *tcp_v4_md5_lookup(struct sock *sk,
 					 struct sock *addr_sk);
 
 #ifdef CONFIG_TCP_MD5SIG
-extern struct tcp_md5sig_key *tcp_md5_do_lookup(struct sock *sk,
-			const union tcp_md5_addr *addr, int family);
+struct tcp_md5sig_key *tcp_md5_do_lookup(struct sock *sk,
+					 const union tcp_md5_addr *addr,
+					 int family);
 #define tcp_twsk_md5_key(twsk)	((twsk)->tw_md5_key)
 #else
 static inline struct tcp_md5sig_key *tcp_md5_do_lookup(struct sock *sk,
@@ -1278,27 +1273,26 @@ static inline struct tcp_md5sig_key *tcp_md5_do_lookup(struct sock *sk,
 #define tcp_twsk_md5_key(twsk)	NULL
 #endif
 
-extern bool tcp_alloc_md5sig_pool(void);
+bool tcp_alloc_md5sig_pool(void);
 
-extern struct tcp_md5sig_pool	*tcp_get_md5sig_pool(void);
+struct tcp_md5sig_pool *tcp_get_md5sig_pool(void);
 static inline void tcp_put_md5sig_pool(void)
 {
 	local_bh_enable();
 }
 
-extern int tcp_md5_hash_header(struct tcp_md5sig_pool *, const struct tcphdr *);
-extern int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *, const struct sk_buff *,
-				 unsigned int header_len);
-extern int tcp_md5_hash_key(struct tcp_md5sig_pool *hp,
-			    const struct tcp_md5sig_key *key);
+int tcp_md5_hash_header(struct tcp_md5sig_pool *, const struct tcphdr *);
+int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *, const struct sk_buff *,
+			  unsigned int header_len);
+int tcp_md5_hash_key(struct tcp_md5sig_pool *hp,
+		     const struct tcp_md5sig_key *key);
 
 /* From tcp_fastopen.c */
-extern void tcp_fastopen_cache_get(struct sock *sk, u16 *mss,
-				   struct tcp_fastopen_cookie *cookie,
-				   int *syn_loss, unsigned long *last_syn_loss);
-extern void tcp_fastopen_cache_set(struct sock *sk, u16 mss,
-				   struct tcp_fastopen_cookie *cookie,
-				   bool syn_lost);
+void tcp_fastopen_cache_get(struct sock *sk, u16 *mss,
+			    struct tcp_fastopen_cookie *cookie, int *syn_loss,
+			    unsigned long *last_syn_loss);
+void tcp_fastopen_cache_set(struct sock *sk, u16 mss,
+			    struct tcp_fastopen_cookie *cookie, bool syn_lost);
 struct tcp_fastopen_request {
 	/* Fast Open cookie. Size 0 means a cookie request */
 	struct tcp_fastopen_cookie	cookie;
@@ -1309,8 +1303,8 @@ void tcp_free_fastopen_req(struct tcp_sock *tp);
 
 extern struct tcp_fastopen_context __rcu *tcp_fastopen_ctx;
 int tcp_fastopen_reset_cipher(void *key, unsigned int len);
-extern void tcp_fastopen_cookie_gen(__be32 src, __be32 dst,
-				    struct tcp_fastopen_cookie *foc);
+void tcp_fastopen_cookie_gen(__be32 src, __be32 dst,
+			     struct tcp_fastopen_cookie *foc);
 
 #define TCP_FASTOPEN_KEY_LENGTH 16
 
@@ -1529,22 +1523,20 @@ struct tcp_iter_state {
 	loff_t			last_pos;
 };
 
-extern int tcp_proc_register(struct net *net, struct tcp_seq_afinfo *afinfo);
-extern void tcp_proc_unregister(struct net *net, struct tcp_seq_afinfo *afinfo);
+int tcp_proc_register(struct net *net, struct tcp_seq_afinfo *afinfo);
+void tcp_proc_unregister(struct net *net, struct tcp_seq_afinfo *afinfo);
 
 extern struct request_sock_ops tcp_request_sock_ops;
 extern struct request_sock_ops tcp6_request_sock_ops;
 
-extern void tcp_v4_destroy_sock(struct sock *sk);
+void tcp_v4_destroy_sock(struct sock *sk);
 
-extern struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
-				       netdev_features_t features);
-extern struct sk_buff **tcp_gro_receive(struct sk_buff **head,
-					struct sk_buff *skb);
-extern int tcp_gro_complete(struct sk_buff *skb);
+struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
+				netdev_features_t features);
+struct sk_buff **tcp_gro_receive(struct sk_buff **head, struct sk_buff *skb);
+int tcp_gro_complete(struct sk_buff *skb);
 
-extern void __tcp_v4_send_check(struct sk_buff *skb, __be32 saddr,
-				__be32 daddr);
+void __tcp_v4_send_check(struct sk_buff *skb, __be32 saddr, __be32 daddr);
 
 static inline u32 tcp_notsent_lowat(const struct tcp_sock *tp)
 {
@@ -1560,8 +1552,8 @@ static inline bool tcp_stream_memory_free(const struct sock *sk)
 }
 
 #ifdef CONFIG_PROC_FS
-extern int tcp4_proc_init(void);
-extern void tcp4_proc_exit(void);
+int tcp4_proc_init(void);
+void tcp4_proc_exit(void);
 #endif
 
 /* TCP af-specific functions */
@@ -1592,9 +1584,9 @@ struct tcp_request_sock_ops {
 #endif
 };
 
-extern int tcpv4_offload_init(void);
+int tcpv4_offload_init(void);
 
-extern void tcp_v4_init(void);
-extern void tcp_init(void);
+void tcp_v4_init(void);
+void tcp_init(void);
 
 #endif	/* _TCP_H */
-- 
cgit 


From 1a50bd064e1825ad0cc049be2d205ac6719f88e5 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:33:36 -0700
Subject: udp.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/udp.h | 94 +++++++++++++++++++++++++++----------------------------
 1 file changed, 47 insertions(+), 47 deletions(-)

diff --git a/include/net/udp.h b/include/net/udp.h
index ef2e0b7843a0..510b8cb4d1a7 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -79,7 +79,7 @@ struct udp_table {
 	unsigned int		log;
 };
 extern struct udp_table udp_table;
-extern void udp_table_init(struct udp_table *, const char *);
+void udp_table_init(struct udp_table *, const char *);
 static inline struct udp_hslot *udp_hashslot(struct udp_table *table,
 					     struct net *net, unsigned int num)
 {
@@ -162,52 +162,52 @@ static inline void udp_lib_hash(struct sock *sk)
 	BUG();
 }
 
-extern void udp_lib_unhash(struct sock *sk);
-extern void udp_lib_rehash(struct sock *sk, u16 new_hash);
+void udp_lib_unhash(struct sock *sk);
+void udp_lib_rehash(struct sock *sk, u16 new_hash);
 
 static inline void udp_lib_close(struct sock *sk, long timeout)
 {
 	sk_common_release(sk);
 }
 
-extern int udp_lib_get_port(struct sock *sk, unsigned short snum,
-			    int (*)(const struct sock *,const struct sock *),
-			    unsigned int hash2_nulladdr);
+int udp_lib_get_port(struct sock *sk, unsigned short snum,
+		     int (*)(const struct sock *, const struct sock *),
+		     unsigned int hash2_nulladdr);
 
 /* net/ipv4/udp.c */
-extern int udp_get_port(struct sock *sk, unsigned short snum,
-			int (*saddr_cmp)(const struct sock *,
-					 const struct sock *));
-extern void udp_err(struct sk_buff *, u32);
-extern int udp_sendmsg(struct kiocb *iocb, struct sock *sk,
-			    struct msghdr *msg, size_t len);
-extern int udp_push_pending_frames(struct sock *sk);
-extern void udp_flush_pending_frames(struct sock *sk);
-extern void udp4_hwcsum(struct sk_buff *skb, __be32 src, __be32 dst);
-extern int udp_rcv(struct sk_buff *skb);
-extern int udp_ioctl(struct sock *sk, int cmd, unsigned long arg);
-extern int udp_disconnect(struct sock *sk, int flags);
-extern unsigned int udp_poll(struct file *file, struct socket *sock,
-			     poll_table *wait);
-extern struct sk_buff *skb_udp_tunnel_segment(struct sk_buff *skb,
-					      netdev_features_t features);
-extern int udp_lib_getsockopt(struct sock *sk, int level, int optname,
-			      char __user *optval, int __user *optlen);
-extern int udp_lib_setsockopt(struct sock *sk, int level, int optname,
-			      char __user *optval, unsigned int optlen,
-			      int (*push_pending_frames)(struct sock *));
-extern struct sock *udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport,
-				    __be32 daddr, __be16 dport,
-				    int dif);
-extern struct sock *__udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport,
-				    __be32 daddr, __be16 dport,
-				    int dif, struct udp_table *tbl);
-extern struct sock *udp6_lib_lookup(struct net *net, const struct in6_addr *saddr, __be16 sport,
-				    const struct in6_addr *daddr, __be16 dport,
-				    int dif);
-extern struct sock *__udp6_lib_lookup(struct net *net, const struct in6_addr *saddr, __be16 sport,
-				    const struct in6_addr *daddr, __be16 dport,
-				    int dif, struct udp_table *tbl);
+int udp_get_port(struct sock *sk, unsigned short snum,
+		 int (*saddr_cmp)(const struct sock *,
+				  const struct sock *));
+void udp_err(struct sk_buff *, u32);
+int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+		size_t len);
+int udp_push_pending_frames(struct sock *sk);
+void udp_flush_pending_frames(struct sock *sk);
+void udp4_hwcsum(struct sk_buff *skb, __be32 src, __be32 dst);
+int udp_rcv(struct sk_buff *skb);
+int udp_ioctl(struct sock *sk, int cmd, unsigned long arg);
+int udp_disconnect(struct sock *sk, int flags);
+unsigned int udp_poll(struct file *file, struct socket *sock, poll_table *wait);
+struct sk_buff *skb_udp_tunnel_segment(struct sk_buff *skb,
+				       netdev_features_t features);
+int udp_lib_getsockopt(struct sock *sk, int level, int optname,
+		       char __user *optval, int __user *optlen);
+int udp_lib_setsockopt(struct sock *sk, int level, int optname,
+		       char __user *optval, unsigned int optlen,
+		       int (*push_pending_frames)(struct sock *));
+struct sock *udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport,
+			     __be32 daddr, __be16 dport, int dif);
+struct sock *__udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport,
+			       __be32 daddr, __be16 dport, int dif,
+			       struct udp_table *tbl);
+struct sock *udp6_lib_lookup(struct net *net,
+			     const struct in6_addr *saddr, __be16 sport,
+			     const struct in6_addr *daddr, __be16 dport,
+			     int dif);
+struct sock *__udp6_lib_lookup(struct net *net,
+			       const struct in6_addr *saddr, __be16 sport,
+			       const struct in6_addr *daddr, __be16 dport,
+			       int dif, struct udp_table *tbl);
 
 /*
  * 	SNMP statistics for UDP and UDP-Lite
@@ -259,19 +259,19 @@ struct udp_iter_state {
 };
 
 #ifdef CONFIG_PROC_FS
-extern int udp_proc_register(struct net *net, struct udp_seq_afinfo *afinfo);
-extern void udp_proc_unregister(struct net *net, struct udp_seq_afinfo *afinfo);
+int udp_proc_register(struct net *net, struct udp_seq_afinfo *afinfo);
+void udp_proc_unregister(struct net *net, struct udp_seq_afinfo *afinfo);
 
-extern int udp4_proc_init(void);
-extern void udp4_proc_exit(void);
+int udp4_proc_init(void);
+void udp4_proc_exit(void);
 #endif
 
-extern int udpv4_offload_init(void);
+int udpv4_offload_init(void);
 
-extern void udp_init(void);
+void udp_init(void);
 
-extern void udp_encap_enable(void);
+void udp_encap_enable(void);
 #if IS_ENABLED(CONFIG_IPV6)
-extern void udpv6_encap_enable(void);
+void udpv6_encap_enable(void);
 #endif
 #endif	/* _UDP_H */
-- 
cgit 


From 160734399f968e4ac4d2f1db844c9c85a4952e05 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:33:39 -0700
Subject: udplite.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/udplite.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/net/udplite.h b/include/net/udplite.h
index 71375459a884..2caadabcd07b 100644
--- a/include/net/udplite.h
+++ b/include/net/udplite.h
@@ -126,7 +126,7 @@ static inline __wsum udplite_csum(struct sk_buff *skb)
 	return skb_checksum(skb, off, len, 0);
 }
 
-extern void	udplite4_register(void);
-extern int 	udplite_get_port(struct sock *sk, unsigned short snum,
-			int (*scmp)(const struct sock *, const struct sock *));
+void udplite4_register(void);
+int udplite_get_port(struct sock *sk, unsigned short snum,
+		     int (*scmp)(const struct sock *, const struct sock *));
 #endif	/* _UDPLITE_H */
-- 
cgit 


From 9e4638cdc894698db6e1de10565ae404748f16c5 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:33:42 -0700
Subject: wext.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/wext.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/include/net/wext.h b/include/net/wext.h
index 4f6e7423174c..345911965dbb 100644
--- a/include/net/wext.h
+++ b/include/net/wext.h
@@ -6,13 +6,13 @@
 struct net;
 
 #ifdef CONFIG_WEXT_CORE
-extern int wext_handle_ioctl(struct net *net, struct ifreq *ifr, unsigned int cmd,
-			     void __user *arg);
-extern int compat_wext_handle_ioctl(struct net *net, unsigned int cmd,
-				    unsigned long arg);
+int wext_handle_ioctl(struct net *net, struct ifreq *ifr, unsigned int cmd,
+		      void __user *arg);
+int compat_wext_handle_ioctl(struct net *net, unsigned int cmd,
+			     unsigned long arg);
 
-extern struct iw_statistics *get_wireless_stats(struct net_device *dev);
-extern int call_commit_handler(struct net_device *dev);
+struct iw_statistics *get_wireless_stats(struct net_device *dev);
+int call_commit_handler(struct net_device *dev);
 #else
 static inline int wext_handle_ioctl(struct net *net, struct ifreq *ifr, unsigned int cmd,
 				    void __user *arg)
@@ -27,8 +27,8 @@ static inline int compat_wext_handle_ioctl(struct net *net, unsigned int cmd,
 #endif
 
 #ifdef CONFIG_WEXT_PROC
-extern int wext_proc_init(struct net *net);
-extern void wext_proc_exit(struct net *net);
+int wext_proc_init(struct net *net);
+void wext_proc_exit(struct net *net);
 #else
 static inline int wext_proc_init(struct net *net)
 {
-- 
cgit 


From 6dfd43d28c92a6d00a3bbccb2aa978de8c1c96b8 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:33:45 -0700
Subject: wimax.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/wimax.h | 33 ++++++++++++++++-----------------
 1 file changed, 16 insertions(+), 17 deletions(-)

diff --git a/include/net/wimax.h b/include/net/wimax.h
index bbb74f990cab..98498e1daa06 100644
--- a/include/net/wimax.h
+++ b/include/net/wimax.h
@@ -438,9 +438,9 @@ struct wimax_dev {
  *
  * These functions are not exported to user space.
  */
-extern void wimax_dev_init(struct wimax_dev *);
-extern int wimax_dev_add(struct wimax_dev *, struct net_device *);
-extern void wimax_dev_rm(struct wimax_dev *);
+void wimax_dev_init(struct wimax_dev *);
+int wimax_dev_add(struct wimax_dev *, struct net_device *);
+void wimax_dev_rm(struct wimax_dev *);
 
 static inline
 struct wimax_dev *net_dev_to_wimax(struct net_device *net_dev)
@@ -454,8 +454,8 @@ struct device *wimax_dev_to_dev(struct wimax_dev *wimax_dev)
 	return wimax_dev->net_dev->dev.parent;
 }
 
-extern void wimax_state_change(struct wimax_dev *, enum wimax_st);
-extern enum wimax_st wimax_state_get(struct wimax_dev *);
+void wimax_state_change(struct wimax_dev *, enum wimax_st);
+enum wimax_st wimax_state_get(struct wimax_dev *);
 
 /*
  * Radio Switch state reporting.
@@ -463,8 +463,8 @@ extern enum wimax_st wimax_state_get(struct wimax_dev *);
  * enum wimax_rf_state is declared in linux/wimax.h so the exports
  * to user space can use it.
  */
-extern void wimax_report_rfkill_hw(struct wimax_dev *, enum wimax_rf_state);
-extern void wimax_report_rfkill_sw(struct wimax_dev *, enum wimax_rf_state);
+void wimax_report_rfkill_hw(struct wimax_dev *, enum wimax_rf_state);
+void wimax_report_rfkill_sw(struct wimax_dev *, enum wimax_rf_state);
 
 
 /*
@@ -490,15 +490,14 @@ extern void wimax_report_rfkill_sw(struct wimax_dev *, enum wimax_rf_state);
  * send diagnostics information that a device-specific diagnostics
  * tool would be interested in.
  */
-extern struct sk_buff *wimax_msg_alloc(struct wimax_dev *, const char *,
-				       const void *, size_t, gfp_t);
-extern int wimax_msg_send(struct wimax_dev *, struct sk_buff *);
-extern int wimax_msg(struct wimax_dev *, const char *,
-		     const void *, size_t, gfp_t);
+struct sk_buff *wimax_msg_alloc(struct wimax_dev *, const char *, const void *,
+				size_t, gfp_t);
+int wimax_msg_send(struct wimax_dev *, struct sk_buff *);
+int wimax_msg(struct wimax_dev *, const char *, const void *, size_t, gfp_t);
 
-extern const void *wimax_msg_data_len(struct sk_buff *, size_t *);
-extern const void *wimax_msg_data(struct sk_buff *);
-extern ssize_t wimax_msg_len(struct sk_buff *);
+const void *wimax_msg_data_len(struct sk_buff *, size_t *);
+const void *wimax_msg_data(struct sk_buff *);
+ssize_t wimax_msg_len(struct sk_buff *);
 
 
 /*
@@ -513,7 +512,7 @@ extern ssize_t wimax_msg_len(struct sk_buff *);
  * device's control structure and (as such) the 'struct wimax_dev' is
  * referenced by the caller.
  */
-extern int wimax_rfkill(struct wimax_dev *, enum wimax_rf_state);
-extern int wimax_reset(struct wimax_dev *);
+int wimax_rfkill(struct wimax_dev *, enum wimax_rf_state);
+int wimax_reset(struct wimax_dev *);
 
 #endif /* #ifndef __NET__WIMAX_H__ */
-- 
cgit 


From 5db50ee6e617c347a24b18ee229e44ba8d4d84a3 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:33:49 -0700
Subject: x25.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/x25.h | 141 +++++++++++++++++++++++++++---------------------------
 1 file changed, 71 insertions(+), 70 deletions(-)

diff --git a/include/net/x25.h b/include/net/x25.h
index b4a8a8923128..c383aa4edbf0 100644
--- a/include/net/x25.h
+++ b/include/net/x25.h
@@ -187,57 +187,57 @@ extern int  sysctl_x25_clear_request_timeout;
 extern int  sysctl_x25_ack_holdback_timeout;
 extern int  sysctl_x25_forward;
 
-extern int x25_parse_address_block(struct sk_buff *skb,
-		struct x25_address *called_addr,
-		struct x25_address *calling_addr);
-
-extern int  x25_addr_ntoa(unsigned char *, struct x25_address *,
-			  struct x25_address *);
-extern int  x25_addr_aton(unsigned char *, struct x25_address *,
-			  struct x25_address *);
-extern struct sock *x25_find_socket(unsigned int, struct x25_neigh *);
-extern void x25_destroy_socket_from_timer(struct sock *);
-extern int  x25_rx_call_request(struct sk_buff *, struct x25_neigh *, unsigned int);
-extern void x25_kill_by_neigh(struct x25_neigh *);
+int x25_parse_address_block(struct sk_buff *skb,
+			    struct x25_address *called_addr,
+			    struct x25_address *calling_addr);
+
+int x25_addr_ntoa(unsigned char *, struct x25_address *, struct x25_address *);
+int x25_addr_aton(unsigned char *, struct x25_address *, struct x25_address *);
+struct sock *x25_find_socket(unsigned int, struct x25_neigh *);
+void x25_destroy_socket_from_timer(struct sock *);
+int x25_rx_call_request(struct sk_buff *, struct x25_neigh *, unsigned int);
+void x25_kill_by_neigh(struct x25_neigh *);
 
 /* x25_dev.c */
-extern void x25_send_frame(struct sk_buff *, struct x25_neigh *);
-extern int  x25_lapb_receive_frame(struct sk_buff *, struct net_device *, struct packet_type *, struct net_device *);
-extern void x25_establish_link(struct x25_neigh *);
-extern void x25_terminate_link(struct x25_neigh *);
+void x25_send_frame(struct sk_buff *, struct x25_neigh *);
+int x25_lapb_receive_frame(struct sk_buff *, struct net_device *,
+			   struct packet_type *, struct net_device *);
+void x25_establish_link(struct x25_neigh *);
+void x25_terminate_link(struct x25_neigh *);
 
 /* x25_facilities.c */
-extern int x25_parse_facilities(struct sk_buff *, struct x25_facilities *,
-				struct x25_dte_facilities *, unsigned long *);
-extern int x25_create_facilities(unsigned char *, struct x25_facilities *,
-				struct x25_dte_facilities *, unsigned long);
-extern int x25_negotiate_facilities(struct sk_buff *, struct sock *,
-				struct x25_facilities *,
-				struct x25_dte_facilities *);
-extern void x25_limit_facilities(struct x25_facilities *, struct x25_neigh *);
+int x25_parse_facilities(struct sk_buff *, struct x25_facilities *,
+			 struct x25_dte_facilities *, unsigned long *);
+int x25_create_facilities(unsigned char *, struct x25_facilities *,
+			  struct x25_dte_facilities *, unsigned long);
+int x25_negotiate_facilities(struct sk_buff *, struct sock *,
+			     struct x25_facilities *,
+			     struct x25_dte_facilities *);
+void x25_limit_facilities(struct x25_facilities *, struct x25_neigh *);
 
 /* x25_forward.c */
-extern void x25_clear_forward_by_lci(unsigned int lci);
-extern void x25_clear_forward_by_dev(struct net_device *);
-extern int x25_forward_data(int, struct x25_neigh *, struct sk_buff *);
-extern int x25_forward_call(struct x25_address *, struct x25_neigh *,
-				struct sk_buff *, int);
+void x25_clear_forward_by_lci(unsigned int lci);
+void x25_clear_forward_by_dev(struct net_device *);
+int x25_forward_data(int, struct x25_neigh *, struct sk_buff *);
+int x25_forward_call(struct x25_address *, struct x25_neigh *, struct sk_buff *,
+		     int);
 
 /* x25_in.c */
-extern int  x25_process_rx_frame(struct sock *, struct sk_buff *);
-extern int  x25_backlog_rcv(struct sock *, struct sk_buff *);
+int x25_process_rx_frame(struct sock *, struct sk_buff *);
+int x25_backlog_rcv(struct sock *, struct sk_buff *);
 
 /* x25_link.c */
-extern void x25_link_control(struct sk_buff *, struct x25_neigh *, unsigned short);
-extern void x25_link_device_up(struct net_device *);
-extern void x25_link_device_down(struct net_device *);
-extern void x25_link_established(struct x25_neigh *);
-extern void x25_link_terminated(struct x25_neigh *);
-extern void x25_transmit_clear_request(struct x25_neigh *, unsigned int, unsigned char);
-extern void x25_transmit_link(struct sk_buff *, struct x25_neigh *);
-extern int  x25_subscr_ioctl(unsigned int, void __user *);
-extern struct x25_neigh *x25_get_neigh(struct net_device *);
-extern void x25_link_free(void);
+void x25_link_control(struct sk_buff *, struct x25_neigh *, unsigned short);
+void x25_link_device_up(struct net_device *);
+void x25_link_device_down(struct net_device *);
+void x25_link_established(struct x25_neigh *);
+void x25_link_terminated(struct x25_neigh *);
+void x25_transmit_clear_request(struct x25_neigh *, unsigned int,
+				unsigned char);
+void x25_transmit_link(struct sk_buff *, struct x25_neigh *);
+int x25_subscr_ioctl(unsigned int, void __user *);
+struct x25_neigh *x25_get_neigh(struct net_device *);
+void x25_link_free(void);
 
 /* x25_neigh.c */
 static __inline__ void x25_neigh_hold(struct x25_neigh *nb)
@@ -252,16 +252,16 @@ static __inline__ void x25_neigh_put(struct x25_neigh *nb)
 }
 
 /* x25_out.c */
-extern  int x25_output(struct sock *, struct sk_buff *);
-extern void x25_kick(struct sock *);
-extern void x25_enquiry_response(struct sock *);
+int x25_output(struct sock *, struct sk_buff *);
+void x25_kick(struct sock *);
+void x25_enquiry_response(struct sock *);
 
 /* x25_route.c */
-extern struct x25_route *x25_get_route(struct x25_address *addr);
-extern struct net_device *x25_dev_get(char *);
-extern void x25_route_device_down(struct net_device *dev);
-extern int  x25_route_ioctl(unsigned int, void __user *);
-extern void x25_route_free(void);
+struct x25_route *x25_get_route(struct x25_address *addr);
+struct net_device *x25_dev_get(char *);
+void x25_route_device_down(struct net_device *dev);
+int x25_route_ioctl(unsigned int, void __user *);
+void x25_route_free(void);
 
 static __inline__ void x25_route_hold(struct x25_route *rt)
 {
@@ -275,30 +275,31 @@ static __inline__ void x25_route_put(struct x25_route *rt)
 }
 
 /* x25_subr.c */
-extern void x25_clear_queues(struct sock *);
-extern void x25_frames_acked(struct sock *, unsigned short);
-extern void x25_requeue_frames(struct sock *);
-extern int  x25_validate_nr(struct sock *, unsigned short);
-extern void x25_write_internal(struct sock *, int);
-extern int  x25_decode(struct sock *, struct sk_buff *, int *, int *, int *, int *, int *);
-extern void x25_disconnect(struct sock *, int, unsigned char, unsigned char);
+void x25_clear_queues(struct sock *);
+void x25_frames_acked(struct sock *, unsigned short);
+void x25_requeue_frames(struct sock *);
+int x25_validate_nr(struct sock *, unsigned short);
+void x25_write_internal(struct sock *, int);
+int x25_decode(struct sock *, struct sk_buff *, int *, int *, int *, int *,
+	       int *);
+void x25_disconnect(struct sock *, int, unsigned char, unsigned char);
 
 /* x25_timer.c */
-extern void x25_init_timers(struct sock *sk);
-extern void x25_start_heartbeat(struct sock *);
-extern void x25_start_t2timer(struct sock *);
-extern void x25_start_t21timer(struct sock *);
-extern void x25_start_t22timer(struct sock *);
-extern void x25_start_t23timer(struct sock *);
-extern void x25_stop_heartbeat(struct sock *);
-extern void x25_stop_timer(struct sock *);
-extern unsigned long x25_display_timer(struct sock *);
-extern void x25_check_rbuf(struct sock *);
+void x25_init_timers(struct sock *sk);
+void x25_start_heartbeat(struct sock *);
+void x25_start_t2timer(struct sock *);
+void x25_start_t21timer(struct sock *);
+void x25_start_t22timer(struct sock *);
+void x25_start_t23timer(struct sock *);
+void x25_stop_heartbeat(struct sock *);
+void x25_stop_timer(struct sock *);
+unsigned long x25_display_timer(struct sock *);
+void x25_check_rbuf(struct sock *);
 
 /* sysctl_net_x25.c */
 #ifdef CONFIG_SYSCTL
-extern void x25_register_sysctl(void);
-extern void x25_unregister_sysctl(void);
+void x25_register_sysctl(void);
+void x25_unregister_sysctl(void);
 #else
 static inline void x25_register_sysctl(void) {};
 static inline void x25_unregister_sysctl(void) {};
@@ -318,6 +319,6 @@ extern rwlock_t x25_forward_list_lock;
 extern struct list_head x25_neigh_list;
 extern rwlock_t x25_neigh_list_lock;
 
-extern int x25_proc_init(void);
-extern void x25_proc_exit(void);
+int x25_proc_init(void);
+void x25_proc_exit(void);
 #endif
-- 
cgit 


From d511337a1eda35ac9d8e373e1cca17d6182a75b7 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:33:53 -0700
Subject: xfrm.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/xfrm.h | 375 +++++++++++++++++++++++++++--------------------------
 1 file changed, 190 insertions(+), 185 deletions(-)

diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index e253bf0cc7ef..765746192724 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -307,15 +307,17 @@ struct xfrm_policy_afinfo {
 	struct dst_entry	*(*blackhole_route)(struct net *net, struct dst_entry *orig);
 };
 
-extern int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo);
-extern int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo);
-extern void km_policy_notify(struct xfrm_policy *xp, int dir, const struct km_event *c);
-extern void km_state_notify(struct xfrm_state *x, const struct km_event *c);
+int xfrm_policy_register_afinfo(struct xfrm_policy_afinfo *afinfo);
+int xfrm_policy_unregister_afinfo(struct xfrm_policy_afinfo *afinfo);
+void km_policy_notify(struct xfrm_policy *xp, int dir,
+		      const struct km_event *c);
+void km_state_notify(struct xfrm_state *x, const struct km_event *c);
 
 struct xfrm_tmpl;
-extern int km_query(struct xfrm_state *x, struct xfrm_tmpl *t, struct xfrm_policy *pol);
-extern void km_state_expired(struct xfrm_state *x, int hard, u32 portid);
-extern int __xfrm_state_delete(struct xfrm_state *x);
+int km_query(struct xfrm_state *x, struct xfrm_tmpl *t,
+	     struct xfrm_policy *pol);
+void km_state_expired(struct xfrm_state *x, int hard, u32 portid);
+int __xfrm_state_delete(struct xfrm_state *x);
 
 struct xfrm_state_afinfo {
 	unsigned int		family;
@@ -344,12 +346,12 @@ struct xfrm_state_afinfo {
 	void			(*local_error)(struct sk_buff *skb, u32 mtu);
 };
 
-extern int xfrm_state_register_afinfo(struct xfrm_state_afinfo *afinfo);
-extern int xfrm_state_unregister_afinfo(struct xfrm_state_afinfo *afinfo);
-extern struct xfrm_state_afinfo *xfrm_state_get_afinfo(unsigned int family);
-extern void xfrm_state_put_afinfo(struct xfrm_state_afinfo *afinfo);
+int xfrm_state_register_afinfo(struct xfrm_state_afinfo *afinfo);
+int xfrm_state_unregister_afinfo(struct xfrm_state_afinfo *afinfo);
+struct xfrm_state_afinfo *xfrm_state_get_afinfo(unsigned int family);
+void xfrm_state_put_afinfo(struct xfrm_state_afinfo *afinfo);
 
-extern void xfrm_state_delete_tunnel(struct xfrm_state *x);
+void xfrm_state_delete_tunnel(struct xfrm_state *x);
 
 struct xfrm_type {
 	char			*description;
@@ -372,8 +374,8 @@ struct xfrm_type {
 	u32			(*get_mtu)(struct xfrm_state *, int size);
 };
 
-extern int xfrm_register_type(const struct xfrm_type *type, unsigned short family);
-extern int xfrm_unregister_type(const struct xfrm_type *type, unsigned short family);
+int xfrm_register_type(const struct xfrm_type *type, unsigned short family);
+int xfrm_unregister_type(const struct xfrm_type *type, unsigned short family);
 
 struct xfrm_mode {
 	/*
@@ -434,8 +436,8 @@ enum {
 	XFRM_MODE_FLAG_TUNNEL = 1,
 };
 
-extern int xfrm_register_mode(struct xfrm_mode *mode, int family);
-extern int xfrm_unregister_mode(struct xfrm_mode *mode, int family);
+int xfrm_register_mode(struct xfrm_mode *mode, int family);
+int xfrm_unregister_mode(struct xfrm_mode *mode, int family);
 
 static inline int xfrm_af2proto(unsigned int family)
 {
@@ -595,8 +597,8 @@ struct xfrm_mgr {
 					   const struct xfrm_kmaddress *k);
 };
 
-extern int xfrm_register_km(struct xfrm_mgr *km);
-extern int xfrm_unregister_km(struct xfrm_mgr *km);
+int xfrm_register_km(struct xfrm_mgr *km);
+int xfrm_unregister_km(struct xfrm_mgr *km);
 
 /*
  * This structure is used for the duration where packets are being
@@ -713,23 +715,23 @@ static inline void xfrm_audit_helper_usrinfo(kuid_t auid, u32 ses, u32 secid,
 		audit_log_task_context(audit_buf);
 }
 
-extern void xfrm_audit_policy_add(struct xfrm_policy *xp, int result,
-				  kuid_t auid, u32 ses, u32 secid);
-extern void xfrm_audit_policy_delete(struct xfrm_policy *xp, int result,
-				  kuid_t auid, u32 ses, u32 secid);
-extern void xfrm_audit_state_add(struct xfrm_state *x, int result,
-				 kuid_t auid, u32 ses, u32 secid);
-extern void xfrm_audit_state_delete(struct xfrm_state *x, int result,
-				    kuid_t auid, u32 ses, u32 secid);
-extern void xfrm_audit_state_replay_overflow(struct xfrm_state *x,
-					     struct sk_buff *skb);
-extern void xfrm_audit_state_replay(struct xfrm_state *x,
-				    struct sk_buff *skb, __be32 net_seq);
-extern void xfrm_audit_state_notfound_simple(struct sk_buff *skb, u16 family);
-extern void xfrm_audit_state_notfound(struct sk_buff *skb, u16 family,
-				      __be32 net_spi, __be32 net_seq);
-extern void xfrm_audit_state_icvfail(struct xfrm_state *x,
-				     struct sk_buff *skb, u8 proto);
+void xfrm_audit_policy_add(struct xfrm_policy *xp, int result, kuid_t auid,
+			   u32 ses, u32 secid);
+void xfrm_audit_policy_delete(struct xfrm_policy *xp, int result, kuid_t auid,
+			      u32 ses, u32 secid);
+void xfrm_audit_state_add(struct xfrm_state *x, int result, kuid_t auid,
+			  u32 ses, u32 secid);
+void xfrm_audit_state_delete(struct xfrm_state *x, int result, kuid_t auid,
+			     u32 ses, u32 secid);
+void xfrm_audit_state_replay_overflow(struct xfrm_state *x,
+				      struct sk_buff *skb);
+void xfrm_audit_state_replay(struct xfrm_state *x, struct sk_buff *skb,
+			     __be32 net_seq);
+void xfrm_audit_state_notfound_simple(struct sk_buff *skb, u16 family);
+void xfrm_audit_state_notfound(struct sk_buff *skb, u16 family, __be32 net_spi,
+			       __be32 net_seq);
+void xfrm_audit_state_icvfail(struct xfrm_state *x, struct sk_buff *skb,
+			      u8 proto);
 #else
 
 static inline void xfrm_audit_policy_add(struct xfrm_policy *xp, int result,
@@ -784,7 +786,7 @@ static inline void xfrm_pol_hold(struct xfrm_policy *policy)
 		atomic_inc(&policy->refcnt);
 }
 
-extern void xfrm_policy_destroy(struct xfrm_policy *policy);
+void xfrm_policy_destroy(struct xfrm_policy *policy);
 
 static inline void xfrm_pol_put(struct xfrm_policy *policy)
 {
@@ -799,7 +801,7 @@ static inline void xfrm_pols_put(struct xfrm_policy **pols, int npols)
 		xfrm_pol_put(pols[i]);
 }
 
-extern void __xfrm_state_destroy(struct xfrm_state *);
+void __xfrm_state_destroy(struct xfrm_state *);
 
 static inline void __xfrm_state_put(struct xfrm_state *x)
 {
@@ -903,9 +905,8 @@ __be16 xfrm_flowi_dport(const struct flowi *fl, const union flowi_uli *uli)
 	return port;
 }
 
-extern bool xfrm_selector_match(const struct xfrm_selector *sel,
-				const struct flowi *fl,
-				unsigned short family);
+bool xfrm_selector_match(const struct xfrm_selector *sel,
+			 const struct flowi *fl, unsigned short family);
 
 #ifdef CONFIG_SECURITY_NETWORK_XFRM
 /*	If neither has a context --> match
@@ -975,7 +976,7 @@ static inline void xfrm_dst_destroy(struct xfrm_dst *xdst)
 }
 #endif
 
-extern void xfrm_dst_ifdown(struct dst_entry *dst, struct net_device *dev);
+void xfrm_dst_ifdown(struct dst_entry *dst, struct net_device *dev);
 
 struct sec_path {
 	atomic_t		refcnt;
@@ -1000,7 +1001,7 @@ secpath_get(struct sec_path *sp)
 	return sp;
 }
 
-extern void __secpath_destroy(struct sec_path *sp);
+void __secpath_destroy(struct sec_path *sp);
 
 static inline void
 secpath_put(struct sec_path *sp)
@@ -1009,7 +1010,7 @@ secpath_put(struct sec_path *sp)
 		__secpath_destroy(sp);
 }
 
-extern struct sec_path *secpath_dup(struct sec_path *src);
+struct sec_path *secpath_dup(struct sec_path *src);
 
 static inline void
 secpath_reset(struct sk_buff *skb)
@@ -1059,7 +1060,8 @@ xfrm_state_addr_cmp(const struct xfrm_tmpl *tmpl, const struct xfrm_state *x, un
 }
 
 #ifdef CONFIG_XFRM
-extern int __xfrm_policy_check(struct sock *, int dir, struct sk_buff *skb, unsigned short family);
+int __xfrm_policy_check(struct sock *, int dir, struct sk_buff *skb,
+			unsigned short family);
 
 static inline int __xfrm_policy_check2(struct sock *sk, int dir,
 				       struct sk_buff *skb,
@@ -1103,8 +1105,8 @@ static inline int xfrm6_policy_check_reverse(struct sock *sk, int dir,
 	return __xfrm_policy_check2(sk, dir, skb, AF_INET6, 1);
 }
 
-extern int __xfrm_decode_session(struct sk_buff *skb, struct flowi *fl,
-				 unsigned int family, int reverse);
+int __xfrm_decode_session(struct sk_buff *skb, struct flowi *fl,
+			  unsigned int family, int reverse);
 
 static inline int xfrm_decode_session(struct sk_buff *skb, struct flowi *fl,
 				      unsigned int family)
@@ -1119,7 +1121,7 @@ static inline int xfrm_decode_session_reverse(struct sk_buff *skb,
 	return __xfrm_decode_session(skb, fl, family, 1);
 }
 
-extern int __xfrm_route_forward(struct sk_buff *skb, unsigned short family);
+int __xfrm_route_forward(struct sk_buff *skb, unsigned short family);
 
 static inline int xfrm_route_forward(struct sk_buff *skb, unsigned short family)
 {
@@ -1140,7 +1142,7 @@ static inline int xfrm6_route_forward(struct sk_buff *skb)
 	return xfrm_route_forward(skb, AF_INET6);
 }
 
-extern int __xfrm_sk_clone_policy(struct sock *sk);
+int __xfrm_sk_clone_policy(struct sock *sk);
 
 static inline int xfrm_sk_clone_policy(struct sock *sk)
 {
@@ -1149,7 +1151,7 @@ static inline int xfrm_sk_clone_policy(struct sock *sk)
 	return 0;
 }
 
-extern int xfrm_policy_delete(struct xfrm_policy *pol, int dir);
+int xfrm_policy_delete(struct xfrm_policy *pol, int dir);
 
 static inline void xfrm_sk_free_policy(struct sock *sk)
 {
@@ -1163,7 +1165,7 @@ static inline void xfrm_sk_free_policy(struct sock *sk)
 	}
 }
 
-extern void xfrm_garbage_collect(struct net *net);
+void xfrm_garbage_collect(struct net *net);
 
 #else
 
@@ -1363,16 +1365,16 @@ struct xfrm6_tunnel {
 	int priority;
 };
 
-extern void xfrm_init(void);
-extern void xfrm4_init(void);
-extern int xfrm_state_init(struct net *net);
-extern void xfrm_state_fini(struct net *net);
-extern void xfrm4_state_init(void);
+void xfrm_init(void);
+void xfrm4_init(void);
+int xfrm_state_init(struct net *net);
+void xfrm_state_fini(struct net *net);
+void xfrm4_state_init(void);
 #ifdef CONFIG_XFRM
-extern int xfrm6_init(void);
-extern void xfrm6_fini(void);
-extern int xfrm6_state_init(void);
-extern void xfrm6_state_fini(void);
+int xfrm6_init(void);
+void xfrm6_fini(void);
+int xfrm6_state_init(void);
+void xfrm6_state_fini(void);
 #else
 static inline int xfrm6_init(void)
 {
@@ -1385,52 +1387,52 @@ static inline void xfrm6_fini(void)
 #endif
 
 #ifdef CONFIG_XFRM_STATISTICS
-extern int xfrm_proc_init(struct net *net);
-extern void xfrm_proc_fini(struct net *net);
+int xfrm_proc_init(struct net *net);
+void xfrm_proc_fini(struct net *net);
 #endif
 
-extern int xfrm_sysctl_init(struct net *net);
+int xfrm_sysctl_init(struct net *net);
 #ifdef CONFIG_SYSCTL
-extern void xfrm_sysctl_fini(struct net *net);
+void xfrm_sysctl_fini(struct net *net);
 #else
 static inline void xfrm_sysctl_fini(struct net *net)
 {
 }
 #endif
 
-extern void xfrm_state_walk_init(struct xfrm_state_walk *walk, u8 proto);
-extern int xfrm_state_walk(struct net *net, struct xfrm_state_walk *walk,
-			   int (*func)(struct xfrm_state *, int, void*), void *);
-extern void xfrm_state_walk_done(struct xfrm_state_walk *walk);
-extern struct xfrm_state *xfrm_state_alloc(struct net *net);
-extern struct xfrm_state *xfrm_state_find(const xfrm_address_t *daddr,
-					  const xfrm_address_t *saddr,
-					  const struct flowi *fl,
-					  struct xfrm_tmpl *tmpl,
-					  struct xfrm_policy *pol, int *err,
-					  unsigned short family);
-extern struct xfrm_state *xfrm_stateonly_find(struct net *net, u32 mark,
-					       xfrm_address_t *daddr,
-					       xfrm_address_t *saddr,
-					       unsigned short family,
-					       u8 mode, u8 proto, u32 reqid);
-extern int xfrm_state_check_expire(struct xfrm_state *x);
-extern void xfrm_state_insert(struct xfrm_state *x);
-extern int xfrm_state_add(struct xfrm_state *x);
-extern int xfrm_state_update(struct xfrm_state *x);
-extern struct xfrm_state *xfrm_state_lookup(struct net *net, u32 mark,
-					    const xfrm_address_t *daddr, __be32 spi,
-					    u8 proto, unsigned short family);
-extern struct xfrm_state *xfrm_state_lookup_byaddr(struct net *net, u32 mark,
-						   const xfrm_address_t *daddr,
-						   const xfrm_address_t *saddr,
-						   u8 proto,
-						   unsigned short family);
+void xfrm_state_walk_init(struct xfrm_state_walk *walk, u8 proto);
+int xfrm_state_walk(struct net *net, struct xfrm_state_walk *walk,
+		    int (*func)(struct xfrm_state *, int, void*), void *);
+void xfrm_state_walk_done(struct xfrm_state_walk *walk);
+struct xfrm_state *xfrm_state_alloc(struct net *net);
+struct xfrm_state *xfrm_state_find(const xfrm_address_t *daddr,
+				   const xfrm_address_t *saddr,
+				   const struct flowi *fl,
+				   struct xfrm_tmpl *tmpl,
+				   struct xfrm_policy *pol, int *err,
+				   unsigned short family);
+struct xfrm_state *xfrm_stateonly_find(struct net *net, u32 mark,
+				       xfrm_address_t *daddr,
+				       xfrm_address_t *saddr,
+				       unsigned short family,
+				       u8 mode, u8 proto, u32 reqid);
+int xfrm_state_check_expire(struct xfrm_state *x);
+void xfrm_state_insert(struct xfrm_state *x);
+int xfrm_state_add(struct xfrm_state *x);
+int xfrm_state_update(struct xfrm_state *x);
+struct xfrm_state *xfrm_state_lookup(struct net *net, u32 mark,
+				     const xfrm_address_t *daddr, __be32 spi,
+				     u8 proto, unsigned short family);
+struct xfrm_state *xfrm_state_lookup_byaddr(struct net *net, u32 mark,
+					    const xfrm_address_t *daddr,
+					    const xfrm_address_t *saddr,
+					    u8 proto,
+					    unsigned short family);
 #ifdef CONFIG_XFRM_SUB_POLICY
-extern int xfrm_tmpl_sort(struct xfrm_tmpl **dst, struct xfrm_tmpl **src,
-			  int n, unsigned short family);
-extern int xfrm_state_sort(struct xfrm_state **dst, struct xfrm_state **src,
-			   int n, unsigned short family);
+int xfrm_tmpl_sort(struct xfrm_tmpl **dst, struct xfrm_tmpl **src, int n,
+		   unsigned short family);
+int xfrm_state_sort(struct xfrm_state **dst, struct xfrm_state **src, int n,
+		    unsigned short family);
 #else
 static inline int xfrm_tmpl_sort(struct xfrm_tmpl **dst, struct xfrm_tmpl **src,
 				 int n, unsigned short family)
@@ -1462,68 +1464,68 @@ struct xfrmk_spdinfo {
 	u32 spdhmcnt;
 };
 
-extern struct xfrm_state *xfrm_find_acq_byseq(struct net *net, u32 mark,
-					      u32 seq);
-extern int xfrm_state_delete(struct xfrm_state *x);
-extern int xfrm_state_flush(struct net *net, u8 proto, struct xfrm_audit *audit_info);
-extern void xfrm_sad_getinfo(struct net *net, struct xfrmk_sadinfo *si);
-extern void xfrm_spd_getinfo(struct net *net, struct xfrmk_spdinfo *si);
-extern u32 xfrm_replay_seqhi(struct xfrm_state *x, __be32 net_seq);
-extern int xfrm_init_replay(struct xfrm_state *x);
-extern int xfrm_state_mtu(struct xfrm_state *x, int mtu);
-extern int __xfrm_init_state(struct xfrm_state *x, bool init_replay);
-extern int xfrm_init_state(struct xfrm_state *x);
-extern int xfrm_prepare_input(struct xfrm_state *x, struct sk_buff *skb);
-extern int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi,
-		      int encap_type);
-extern int xfrm_input_resume(struct sk_buff *skb, int nexthdr);
-extern int xfrm_output_resume(struct sk_buff *skb, int err);
-extern int xfrm_output(struct sk_buff *skb);
-extern int xfrm_inner_extract_output(struct xfrm_state *x, struct sk_buff *skb);
-extern void xfrm_local_error(struct sk_buff *skb, int mtu);
-extern int xfrm4_extract_header(struct sk_buff *skb);
-extern int xfrm4_extract_input(struct xfrm_state *x, struct sk_buff *skb);
-extern int xfrm4_rcv_encap(struct sk_buff *skb, int nexthdr, __be32 spi,
-			   int encap_type);
-extern int xfrm4_transport_finish(struct sk_buff *skb, int async);
-extern int xfrm4_rcv(struct sk_buff *skb);
+struct xfrm_state *xfrm_find_acq_byseq(struct net *net, u32 mark, u32 seq);
+int xfrm_state_delete(struct xfrm_state *x);
+int xfrm_state_flush(struct net *net, u8 proto, struct xfrm_audit *audit_info);
+void xfrm_sad_getinfo(struct net *net, struct xfrmk_sadinfo *si);
+void xfrm_spd_getinfo(struct net *net, struct xfrmk_spdinfo *si);
+u32 xfrm_replay_seqhi(struct xfrm_state *x, __be32 net_seq);
+int xfrm_init_replay(struct xfrm_state *x);
+int xfrm_state_mtu(struct xfrm_state *x, int mtu);
+int __xfrm_init_state(struct xfrm_state *x, bool init_replay);
+int xfrm_init_state(struct xfrm_state *x);
+int xfrm_prepare_input(struct xfrm_state *x, struct sk_buff *skb);
+int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type);
+int xfrm_input_resume(struct sk_buff *skb, int nexthdr);
+int xfrm_output_resume(struct sk_buff *skb, int err);
+int xfrm_output(struct sk_buff *skb);
+int xfrm_inner_extract_output(struct xfrm_state *x, struct sk_buff *skb);
+void xfrm_local_error(struct sk_buff *skb, int mtu);
+int xfrm4_extract_header(struct sk_buff *skb);
+int xfrm4_extract_input(struct xfrm_state *x, struct sk_buff *skb);
+int xfrm4_rcv_encap(struct sk_buff *skb, int nexthdr, __be32 spi,
+		    int encap_type);
+int xfrm4_transport_finish(struct sk_buff *skb, int async);
+int xfrm4_rcv(struct sk_buff *skb);
 
 static inline int xfrm4_rcv_spi(struct sk_buff *skb, int nexthdr, __be32 spi)
 {
 	return xfrm4_rcv_encap(skb, nexthdr, spi, 0);
 }
 
-extern int xfrm4_extract_output(struct xfrm_state *x, struct sk_buff *skb);
-extern int xfrm4_prepare_output(struct xfrm_state *x, struct sk_buff *skb);
-extern int xfrm4_output(struct sk_buff *skb);
-extern int xfrm4_output_finish(struct sk_buff *skb);
-extern int xfrm4_tunnel_register(struct xfrm_tunnel *handler, unsigned short family);
-extern int xfrm4_tunnel_deregister(struct xfrm_tunnel *handler, unsigned short family);
-extern int xfrm4_mode_tunnel_input_register(struct xfrm_tunnel *handler);
-extern int xfrm4_mode_tunnel_input_deregister(struct xfrm_tunnel *handler);
-extern void xfrm4_local_error(struct sk_buff *skb, u32 mtu);
-extern int xfrm6_extract_header(struct sk_buff *skb);
-extern int xfrm6_extract_input(struct xfrm_state *x, struct sk_buff *skb);
-extern int xfrm6_rcv_spi(struct sk_buff *skb, int nexthdr, __be32 spi);
-extern int xfrm6_transport_finish(struct sk_buff *skb, int async);
-extern int xfrm6_rcv(struct sk_buff *skb);
-extern int xfrm6_input_addr(struct sk_buff *skb, xfrm_address_t *daddr,
-			    xfrm_address_t *saddr, u8 proto);
-extern int xfrm6_tunnel_register(struct xfrm6_tunnel *handler, unsigned short family);
-extern int xfrm6_tunnel_deregister(struct xfrm6_tunnel *handler, unsigned short family);
-extern __be32 xfrm6_tunnel_alloc_spi(struct net *net, xfrm_address_t *saddr);
-extern __be32 xfrm6_tunnel_spi_lookup(struct net *net, const xfrm_address_t *saddr);
-extern int xfrm6_extract_output(struct xfrm_state *x, struct sk_buff *skb);
-extern int xfrm6_prepare_output(struct xfrm_state *x, struct sk_buff *skb);
-extern int xfrm6_output(struct sk_buff *skb);
-extern int xfrm6_output_finish(struct sk_buff *skb);
-extern int xfrm6_find_1stfragopt(struct xfrm_state *x, struct sk_buff *skb,
-				 u8 **prevhdr);
-extern void xfrm6_local_error(struct sk_buff *skb, u32 mtu);
+int xfrm4_extract_output(struct xfrm_state *x, struct sk_buff *skb);
+int xfrm4_prepare_output(struct xfrm_state *x, struct sk_buff *skb);
+int xfrm4_output(struct sk_buff *skb);
+int xfrm4_output_finish(struct sk_buff *skb);
+int xfrm4_tunnel_register(struct xfrm_tunnel *handler, unsigned short family);
+int xfrm4_tunnel_deregister(struct xfrm_tunnel *handler, unsigned short family);
+int xfrm4_mode_tunnel_input_register(struct xfrm_tunnel *handler);
+int xfrm4_mode_tunnel_input_deregister(struct xfrm_tunnel *handler);
+void xfrm4_local_error(struct sk_buff *skb, u32 mtu);
+int xfrm6_extract_header(struct sk_buff *skb);
+int xfrm6_extract_input(struct xfrm_state *x, struct sk_buff *skb);
+int xfrm6_rcv_spi(struct sk_buff *skb, int nexthdr, __be32 spi);
+int xfrm6_transport_finish(struct sk_buff *skb, int async);
+int xfrm6_rcv(struct sk_buff *skb);
+int xfrm6_input_addr(struct sk_buff *skb, xfrm_address_t *daddr,
+		     xfrm_address_t *saddr, u8 proto);
+int xfrm6_tunnel_register(struct xfrm6_tunnel *handler, unsigned short family);
+int xfrm6_tunnel_deregister(struct xfrm6_tunnel *handler,
+			    unsigned short family);
+__be32 xfrm6_tunnel_alloc_spi(struct net *net, xfrm_address_t *saddr);
+__be32 xfrm6_tunnel_spi_lookup(struct net *net, const xfrm_address_t *saddr);
+int xfrm6_extract_output(struct xfrm_state *x, struct sk_buff *skb);
+int xfrm6_prepare_output(struct xfrm_state *x, struct sk_buff *skb);
+int xfrm6_output(struct sk_buff *skb);
+int xfrm6_output_finish(struct sk_buff *skb);
+int xfrm6_find_1stfragopt(struct xfrm_state *x, struct sk_buff *skb,
+			  u8 **prevhdr);
+void xfrm6_local_error(struct sk_buff *skb, u32 mtu);
 
 #ifdef CONFIG_XFRM
-extern int xfrm4_udp_encap_rcv(struct sock *sk, struct sk_buff *skb);
-extern int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen);
+int xfrm4_udp_encap_rcv(struct sock *sk, struct sk_buff *skb);
+int xfrm_user_policy(struct sock *sk, int optname,
+		     u8 __user *optval, int optlen);
 #else
 static inline int xfrm_user_policy(struct sock *sk, int optname, u8 __user *optval, int optlen)
 {
@@ -1540,59 +1542,62 @@ static inline int xfrm4_udp_encap_rcv(struct sock *sk, struct sk_buff *skb)
 
 struct xfrm_policy *xfrm_policy_alloc(struct net *net, gfp_t gfp);
 
-extern void xfrm_policy_walk_init(struct xfrm_policy_walk *walk, u8 type);
-extern int xfrm_policy_walk(struct net *net, struct xfrm_policy_walk *walk,
-	int (*func)(struct xfrm_policy *, int, int, void*), void *);
-extern void xfrm_policy_walk_done(struct xfrm_policy_walk *walk);
+void xfrm_policy_walk_init(struct xfrm_policy_walk *walk, u8 type);
+int xfrm_policy_walk(struct net *net, struct xfrm_policy_walk *walk,
+		     int (*func)(struct xfrm_policy *, int, int, void*),
+		     void *);
+void xfrm_policy_walk_done(struct xfrm_policy_walk *walk);
 int xfrm_policy_insert(int dir, struct xfrm_policy *policy, int excl);
 struct xfrm_policy *xfrm_policy_bysel_ctx(struct net *net, u32 mark,
 					  u8 type, int dir,
 					  struct xfrm_selector *sel,
 					  struct xfrm_sec_ctx *ctx, int delete,
 					  int *err);
-struct xfrm_policy *xfrm_policy_byid(struct net *net, u32 mark, u8, int dir, u32 id, int delete, int *err);
+struct xfrm_policy *xfrm_policy_byid(struct net *net, u32 mark, u8, int dir,
+				     u32 id, int delete, int *err);
 int xfrm_policy_flush(struct net *net, u8 type, struct xfrm_audit *audit_info);
 u32 xfrm_get_acqseq(void);
-extern int xfrm_alloc_spi(struct xfrm_state *x, u32 minspi, u32 maxspi);
+int xfrm_alloc_spi(struct xfrm_state *x, u32 minspi, u32 maxspi);
 struct xfrm_state *xfrm_find_acq(struct net *net, const struct xfrm_mark *mark,
 				 u8 mode, u32 reqid, u8 proto,
 				 const xfrm_address_t *daddr,
 				 const xfrm_address_t *saddr, int create,
 				 unsigned short family);
-extern int xfrm_sk_policy_insert(struct sock *sk, int dir, struct xfrm_policy *pol);
+int xfrm_sk_policy_insert(struct sock *sk, int dir, struct xfrm_policy *pol);
 
 #ifdef CONFIG_XFRM_MIGRATE
-extern int km_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
-		      const struct xfrm_migrate *m, int num_bundles,
-		      const struct xfrm_kmaddress *k);
-extern struct xfrm_state * xfrm_migrate_state_find(struct xfrm_migrate *m);
-extern struct xfrm_state * xfrm_state_migrate(struct xfrm_state *x,
-					      struct xfrm_migrate *m);
-extern int xfrm_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
-			struct xfrm_migrate *m, int num_bundles,
-			struct xfrm_kmaddress *k);
+int km_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
+	       const struct xfrm_migrate *m, int num_bundles,
+	       const struct xfrm_kmaddress *k);
+struct xfrm_state *xfrm_migrate_state_find(struct xfrm_migrate *m);
+struct xfrm_state *xfrm_state_migrate(struct xfrm_state *x,
+				      struct xfrm_migrate *m);
+int xfrm_migrate(const struct xfrm_selector *sel, u8 dir, u8 type,
+		 struct xfrm_migrate *m, int num_bundles,
+		 struct xfrm_kmaddress *k);
 #endif
 
-extern int km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport);
-extern void km_policy_expired(struct xfrm_policy *pol, int dir, int hard, u32 portid);
-extern int km_report(struct net *net, u8 proto, struct xfrm_selector *sel, xfrm_address_t *addr);
-
-extern void xfrm_input_init(void);
-extern int xfrm_parse_spi(struct sk_buff *skb, u8 nexthdr, __be32 *spi, __be32 *seq);
-
-extern void xfrm_probe_algs(void);
-extern int xfrm_count_pfkey_auth_supported(void);
-extern int xfrm_count_pfkey_enc_supported(void);
-extern struct xfrm_algo_desc *xfrm_aalg_get_byidx(unsigned int idx);
-extern struct xfrm_algo_desc *xfrm_ealg_get_byidx(unsigned int idx);
-extern struct xfrm_algo_desc *xfrm_aalg_get_byid(int alg_id);
-extern struct xfrm_algo_desc *xfrm_ealg_get_byid(int alg_id);
-extern struct xfrm_algo_desc *xfrm_calg_get_byid(int alg_id);
-extern struct xfrm_algo_desc *xfrm_aalg_get_byname(const char *name, int probe);
-extern struct xfrm_algo_desc *xfrm_ealg_get_byname(const char *name, int probe);
-extern struct xfrm_algo_desc *xfrm_calg_get_byname(const char *name, int probe);
-extern struct xfrm_algo_desc *xfrm_aead_get_byname(const char *name, int icv_len,
-						   int probe);
+int km_new_mapping(struct xfrm_state *x, xfrm_address_t *ipaddr, __be16 sport);
+void km_policy_expired(struct xfrm_policy *pol, int dir, int hard, u32 portid);
+int km_report(struct net *net, u8 proto, struct xfrm_selector *sel,
+	      xfrm_address_t *addr);
+
+void xfrm_input_init(void);
+int xfrm_parse_spi(struct sk_buff *skb, u8 nexthdr, __be32 *spi, __be32 *seq);
+
+void xfrm_probe_algs(void);
+int xfrm_count_pfkey_auth_supported(void);
+int xfrm_count_pfkey_enc_supported(void);
+struct xfrm_algo_desc *xfrm_aalg_get_byidx(unsigned int idx);
+struct xfrm_algo_desc *xfrm_ealg_get_byidx(unsigned int idx);
+struct xfrm_algo_desc *xfrm_aalg_get_byid(int alg_id);
+struct xfrm_algo_desc *xfrm_ealg_get_byid(int alg_id);
+struct xfrm_algo_desc *xfrm_calg_get_byid(int alg_id);
+struct xfrm_algo_desc *xfrm_aalg_get_byname(const char *name, int probe);
+struct xfrm_algo_desc *xfrm_ealg_get_byname(const char *name, int probe);
+struct xfrm_algo_desc *xfrm_calg_get_byname(const char *name, int probe);
+struct xfrm_algo_desc *xfrm_aead_get_byname(const char *name, int icv_len,
+					    int probe);
 
 static inline bool xfrm6_addr_equal(const xfrm_address_t *a,
 				    const xfrm_address_t *b)
-- 
cgit 


From e74e58f8d2015ac6b4e7a65c0acde8a499d46574 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:36 -0700
Subject: bluetooth: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/bluetooth/bluetooth.h | 16 ++++++++--------
 include/net/bluetooth/hci_core.h  | 23 +++++++++++------------
 include/net/bluetooth/rfcomm.h    |  4 ++--
 3 files changed, 21 insertions(+), 22 deletions(-)

diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 10d43d8c7037..13d6c3929759 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -331,16 +331,16 @@ out:
 
 int bt_to_errno(__u16 code);
 
-extern int hci_sock_init(void);
-extern void hci_sock_cleanup(void);
+int hci_sock_init(void);
+void hci_sock_cleanup(void);
 
-extern int bt_sysfs_init(void);
-extern void bt_sysfs_cleanup(void);
+int bt_sysfs_init(void);
+void bt_sysfs_cleanup(void);
 
-extern int  bt_procfs_init(struct net *net, const char *name,
-			   struct bt_sock_list* sk_list,
-			   int (* seq_show)(struct seq_file *, void *));
-extern void bt_procfs_cleanup(struct net *net, const char *name);
+int bt_procfs_init(struct net *net, const char *name,
+		   struct bt_sock_list *sk_list,
+		   int (*seq_show)(struct seq_file *, void *));
+void bt_procfs_cleanup(struct net *net, const char *name);
 
 extern struct dentry *bt_debugfs;
 
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 3ede820d328f..5769061e6533 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -367,18 +367,17 @@ extern rwlock_t hci_dev_list_lock;
 extern rwlock_t hci_cb_list_lock;
 
 /* ----- HCI interface to upper protocols ----- */
-extern int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
-extern void l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
-extern int l2cap_disconn_ind(struct hci_conn *hcon);
-extern void l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
-extern int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
-extern int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb,
-			      u16 flags);
-
-extern int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
-extern void sco_connect_cfm(struct hci_conn *hcon, __u8 status);
-extern void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason);
-extern int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
+int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
+void l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
+int l2cap_disconn_ind(struct hci_conn *hcon);
+void l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
+int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
+int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags);
+
+int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
+void sco_connect_cfm(struct hci_conn *hcon, __u8 status);
+void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason);
+int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
 
 /* ----- Inquiry cache ----- */
 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
diff --git a/include/net/bluetooth/rfcomm.h b/include/net/bluetooth/rfcomm.h
index 7afd4199d6b6..b7f43e76a5c5 100644
--- a/include/net/bluetooth/rfcomm.h
+++ b/include/net/bluetooth/rfcomm.h
@@ -256,8 +256,8 @@ static inline void rfcomm_dlc_put(struct rfcomm_dlc *d)
 		rfcomm_dlc_free(d);
 }
 
-extern void __rfcomm_dlc_throttle(struct rfcomm_dlc *d);
-extern void __rfcomm_dlc_unthrottle(struct rfcomm_dlc *d);
+void __rfcomm_dlc_throttle(struct rfcomm_dlc *d);
+void __rfcomm_dlc_unthrottle(struct rfcomm_dlc *d);
 
 static inline void rfcomm_dlc_throttle(struct rfcomm_dlc *d)
 {
-- 
cgit 


From a22b8f4b57af5a4bdda2039d82845285b2a2b7ec Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:40 -0700
Subject: caif_hsi.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/caif/caif_hsi.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/net/caif/caif_hsi.h b/include/net/caif/caif_hsi.h
index 4795e817afe5..097f69cfaa75 100644
--- a/include/net/caif/caif_hsi.h
+++ b/include/net/caif/caif_hsi.h
@@ -195,6 +195,6 @@ enum ifla_caif_hsi {
 	__IFLA_CAIF_HSI_MAX
 };
 
-extern struct cfhsi_ops *cfhsi_get_ops(void);
+struct cfhsi_ops *cfhsi_get_ops(void);
 
 #endif		/* CAIF_HSI_H_ */
-- 
cgit 


From 0e418f94d3fcdc79c88841f3338e768e1b0966a1 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:44 -0700
Subject: irda: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/irda/ircomm_tty.h  | 14 +++++++-------
 include/net/irda/irda.h        | 21 ++++++++++-----------
 include/net/irda/irlap_event.h |  2 +-
 include/net/irda/irlap_frame.h |  4 ++--
 4 files changed, 20 insertions(+), 21 deletions(-)

diff --git a/include/net/irda/ircomm_tty.h b/include/net/irda/ircomm_tty.h
index 80ffde3bb164..0224402260a7 100644
--- a/include/net/irda/ircomm_tty.h
+++ b/include/net/irda/ircomm_tty.h
@@ -105,13 +105,13 @@ struct ircomm_tty_cb {
 void ircomm_tty_start(struct tty_struct *tty);
 void ircomm_tty_check_modem_status(struct ircomm_tty_cb *self);
 
-extern int ircomm_tty_tiocmget(struct tty_struct *tty);
-extern int ircomm_tty_tiocmset(struct tty_struct *tty,
-			       unsigned int set, unsigned int clear);
-extern int ircomm_tty_ioctl(struct tty_struct *tty, 
-			    unsigned int cmd, unsigned long arg);
-extern void ircomm_tty_set_termios(struct tty_struct *tty, 
-				   struct ktermios *old_termios);
+int ircomm_tty_tiocmget(struct tty_struct *tty);
+int ircomm_tty_tiocmset(struct tty_struct *tty, unsigned int set,
+			unsigned int clear);
+int ircomm_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
+		     unsigned long arg);
+void ircomm_tty_set_termios(struct tty_struct *tty,
+			    struct ktermios *old_termios);
 
 #endif
 
diff --git a/include/net/irda/irda.h b/include/net/irda/irda.h
index 3bed61d379a8..a059465101ff 100644
--- a/include/net/irda/irda.h
+++ b/include/net/irda/irda.h
@@ -112,20 +112,19 @@ do { if(!(expr)) { \
 struct net_device;
 struct packet_type;
 
-extern void irda_proc_register(void);
-extern void irda_proc_unregister(void);
+void irda_proc_register(void);
+void irda_proc_unregister(void);
 
-extern int irda_sysctl_register(void);
-extern void irda_sysctl_unregister(void);
+int irda_sysctl_register(void);
+void irda_sysctl_unregister(void);
 
-extern int irsock_init(void);
-extern void irsock_cleanup(void);
+int irsock_init(void);
+void irsock_cleanup(void);
 
-extern int irda_nl_register(void);
-extern void irda_nl_unregister(void);
+int irda_nl_register(void);
+void irda_nl_unregister(void);
 
-extern int irlap_driver_rcv(struct sk_buff *skb, struct net_device *dev,
-			    struct packet_type *ptype,
-			    struct net_device *orig_dev);
+int irlap_driver_rcv(struct sk_buff *skb, struct net_device *dev,
+		     struct packet_type *ptype, struct net_device *orig_dev);
 
 #endif /* NET_IRDA_H */
diff --git a/include/net/irda/irlap_event.h b/include/net/irda/irlap_event.h
index 4c90824c50fb..f9d88da97af2 100644
--- a/include/net/irda/irlap_event.h
+++ b/include/net/irda/irlap_event.h
@@ -126,6 +126,6 @@ void irlap_do_event(struct irlap_cb *self, IRLAP_EVENT event,
 		    struct sk_buff *skb, struct irlap_info *info);
 void irlap_print_event(IRLAP_EVENT event);
 
-extern int irlap_qos_negotiate(struct irlap_cb *self, struct sk_buff *skb);
+int irlap_qos_negotiate(struct irlap_cb *self, struct sk_buff *skb);
 
 #endif
diff --git a/include/net/irda/irlap_frame.h b/include/net/irda/irlap_frame.h
index 6b1dc4f8eca5..57173ae398ae 100644
--- a/include/net/irda/irlap_frame.h
+++ b/include/net/irda/irlap_frame.h
@@ -163,7 +163,7 @@ void irlap_resend_rejected_frame(struct irlap_cb *self, int command);
 void irlap_send_ui_frame(struct irlap_cb *self, struct sk_buff *skb,
 			 __u8 caddr, int command);
 
-extern int irlap_insert_qos_negotiation_params(struct irlap_cb *self, 
-					       struct sk_buff *skb);
+int irlap_insert_qos_negotiation_params(struct irlap_cb *self,
+					struct sk_buff *skb);
 
 #endif
-- 
cgit 


From 4e77be4637641c92468dd5de39cba774bed7d6ba Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:48 -0700
Subject: netfilter: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/netfilter/ipv4/nf_conntrack_ipv4.h |  6 +--
 include/net/netfilter/ipv4/nf_defrag_ipv4.h    |  2 +-
 include/net/netfilter/ipv6/nf_defrag_ipv6.h    | 17 +++----
 include/net/netfilter/nf_conntrack.h           | 69 +++++++++++---------------
 include/net/netfilter/nf_conntrack_acct.h      | 12 ++---
 include/net/netfilter/nf_conntrack_core.h      | 69 ++++++++++++--------------
 include/net/netfilter/nf_conntrack_ecache.h    | 22 ++++----
 include/net/netfilter/nf_conntrack_extend.h    |  2 +-
 include/net/netfilter/nf_conntrack_helper.h    | 40 ++++++++-------
 include/net/netfilter/nf_conntrack_l3proto.h   | 16 +++---
 include/net/netfilter/nf_conntrack_l4proto.h   | 32 ++++++------
 include/net/netfilter/nf_conntrack_seqadj.h    | 30 +++++------
 include/net/netfilter/nf_conntrack_synproxy.h  | 28 +++++------
 include/net/netfilter/nf_conntrack_timeout.h   |  4 +-
 include/net/netfilter/nf_conntrack_timestamp.h |  8 +--
 include/net/netfilter/nf_nat.h                 | 10 ++--
 include/net/netfilter/nf_nat_core.h            |  8 ++-
 include/net/netfilter/nf_nat_helper.h          | 29 ++++-------
 include/net/netfilter/nf_nat_l3proto.h         | 23 ++++-----
 include/net/netfilter/nf_nat_l4proto.h         | 30 +++++------
 include/net/netfilter/nf_queue.h               |  2 +-
 include/net/netfilter/xt_rateest.h             |  4 +-
 22 files changed, 217 insertions(+), 246 deletions(-)

diff --git a/include/net/netfilter/ipv4/nf_conntrack_ipv4.h b/include/net/netfilter/ipv4/nf_conntrack_ipv4.h
index 7573d52a4346..6c3d12e2949f 100644
--- a/include/net/netfilter/ipv4/nf_conntrack_ipv4.h
+++ b/include/net/netfilter/ipv4/nf_conntrack_ipv4.h
@@ -16,9 +16,9 @@ extern struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp4;
 extern struct nf_conntrack_l4proto nf_conntrack_l4proto_udp4;
 extern struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp;
 
-extern int nf_conntrack_ipv4_compat_init(void);
-extern void nf_conntrack_ipv4_compat_fini(void);
+int nf_conntrack_ipv4_compat_init(void);
+void nf_conntrack_ipv4_compat_fini(void);
 
-extern void need_ipv4_conntrack(void);
+void need_ipv4_conntrack(void);
 
 #endif /*_NF_CONNTRACK_IPV4_H*/
diff --git a/include/net/netfilter/ipv4/nf_defrag_ipv4.h b/include/net/netfilter/ipv4/nf_defrag_ipv4.h
index 6b00ea38546b..f01ef208dff6 100644
--- a/include/net/netfilter/ipv4/nf_defrag_ipv4.h
+++ b/include/net/netfilter/ipv4/nf_defrag_ipv4.h
@@ -1,6 +1,6 @@
 #ifndef _NF_DEFRAG_IPV4_H
 #define _NF_DEFRAG_IPV4_H
 
-extern void nf_defrag_ipv4_enable(void);
+void nf_defrag_ipv4_enable(void);
 
 #endif /* _NF_DEFRAG_IPV4_H */
diff --git a/include/net/netfilter/ipv6/nf_defrag_ipv6.h b/include/net/netfilter/ipv6/nf_defrag_ipv6.h
index fd79c9a1779d..5613412e7dc2 100644
--- a/include/net/netfilter/ipv6/nf_defrag_ipv6.h
+++ b/include/net/netfilter/ipv6/nf_defrag_ipv6.h
@@ -1,15 +1,14 @@
 #ifndef _NF_DEFRAG_IPV6_H
 #define _NF_DEFRAG_IPV6_H
 
-extern void nf_defrag_ipv6_enable(void);
-
-extern int nf_ct_frag6_init(void);
-extern void nf_ct_frag6_cleanup(void);
-extern struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb, u32 user);
-extern void nf_ct_frag6_output(unsigned int hooknum, struct sk_buff *skb,
-			       struct net_device *in,
-			       struct net_device *out,
-			       int (*okfn)(struct sk_buff *));
+void nf_defrag_ipv6_enable(void);
+
+int nf_ct_frag6_init(void);
+void nf_ct_frag6_cleanup(void);
+struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb, u32 user);
+void nf_ct_frag6_output(unsigned int hooknum, struct sk_buff *skb,
+			struct net_device *in, struct net_device *out,
+			int (*okfn)(struct sk_buff *));
 
 struct inet_frags_ctl;
 
diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h
index 0c1288a50e8b..01ea6eed1bb1 100644
--- a/include/net/netfilter/nf_conntrack.h
+++ b/include/net/netfilter/nf_conntrack.h
@@ -139,15 +139,13 @@ static inline struct net *nf_ct_net(const struct nf_conn *ct)
 }
 
 /* Alter reply tuple (maybe alter helper). */
-extern void
-nf_conntrack_alter_reply(struct nf_conn *ct,
-			 const struct nf_conntrack_tuple *newreply);
+void nf_conntrack_alter_reply(struct nf_conn *ct,
+			      const struct nf_conntrack_tuple *newreply);
 
 /* Is this tuple taken? (ignoring any belonging to the given
    conntrack). */
-extern int
-nf_conntrack_tuple_taken(const struct nf_conntrack_tuple *tuple,
-			 const struct nf_conn *ignored_conntrack);
+int nf_conntrack_tuple_taken(const struct nf_conntrack_tuple *tuple,
+			     const struct nf_conn *ignored_conntrack);
 
 /* Return conntrack_info and tuple hash for given skb. */
 static inline struct nf_conn *
@@ -165,37 +163,34 @@ static inline void nf_ct_put(struct nf_conn *ct)
 }
 
 /* Protocol module loading */
-extern int nf_ct_l3proto_try_module_get(unsigned short l3proto);
-extern void nf_ct_l3proto_module_put(unsigned short l3proto);
+int nf_ct_l3proto_try_module_get(unsigned short l3proto);
+void nf_ct_l3proto_module_put(unsigned short l3proto);
 
 /*
  * Allocate a hashtable of hlist_head (if nulls == 0),
  * or hlist_nulls_head (if nulls == 1)
  */
-extern void *nf_ct_alloc_hashtable(unsigned int *sizep, int nulls);
+void *nf_ct_alloc_hashtable(unsigned int *sizep, int nulls);
 
-extern void nf_ct_free_hashtable(void *hash, unsigned int size);
+void nf_ct_free_hashtable(void *hash, unsigned int size);
 
-extern struct nf_conntrack_tuple_hash *
+struct nf_conntrack_tuple_hash *
 __nf_conntrack_find(struct net *net, u16 zone,
 		    const struct nf_conntrack_tuple *tuple);
 
-extern int nf_conntrack_hash_check_insert(struct nf_conn *ct);
+int nf_conntrack_hash_check_insert(struct nf_conn *ct);
 bool nf_ct_delete(struct nf_conn *ct, u32 pid, int report);
 
-extern void nf_conntrack_flush_report(struct net *net, u32 portid, int report);
+void nf_conntrack_flush_report(struct net *net, u32 portid, int report);
 
-extern bool nf_ct_get_tuplepr(const struct sk_buff *skb,
-			      unsigned int nhoff, u_int16_t l3num,
-			      struct nf_conntrack_tuple *tuple);
-extern bool nf_ct_invert_tuplepr(struct nf_conntrack_tuple *inverse,
-				 const struct nf_conntrack_tuple *orig);
+bool nf_ct_get_tuplepr(const struct sk_buff *skb, unsigned int nhoff,
+		       u_int16_t l3num, struct nf_conntrack_tuple *tuple);
+bool nf_ct_invert_tuplepr(struct nf_conntrack_tuple *inverse,
+			  const struct nf_conntrack_tuple *orig);
 
-extern void __nf_ct_refresh_acct(struct nf_conn *ct,
-				 enum ip_conntrack_info ctinfo,
-				 const struct sk_buff *skb,
-				 unsigned long extra_jiffies,
-				 int do_acct);
+void __nf_ct_refresh_acct(struct nf_conn *ct, enum ip_conntrack_info ctinfo,
+			  const struct sk_buff *skb,
+			  unsigned long extra_jiffies, int do_acct);
 
 /* Refresh conntrack for this many jiffies and do accounting */
 static inline void nf_ct_refresh_acct(struct nf_conn *ct,
@@ -214,10 +209,8 @@ static inline void nf_ct_refresh(struct nf_conn *ct,
 	__nf_ct_refresh_acct(ct, 0, skb, extra_jiffies, 0);
 }
 
-extern bool __nf_ct_kill_acct(struct nf_conn *ct,
-			      enum ip_conntrack_info ctinfo,
-			      const struct sk_buff *skb,
-			      int do_acct);
+bool __nf_ct_kill_acct(struct nf_conn *ct, enum ip_conntrack_info ctinfo,
+		       const struct sk_buff *skb, int do_acct);
 
 /* kill conntrack and do accounting */
 static inline bool nf_ct_kill_acct(struct nf_conn *ct,
@@ -244,19 +237,17 @@ static inline struct nf_conn *nf_ct_untracked_get(void)
 {
 	return &__raw_get_cpu_var(nf_conntrack_untracked);
 }
-extern void nf_ct_untracked_status_or(unsigned long bits);
+void nf_ct_untracked_status_or(unsigned long bits);
 
 /* Iterate over all conntracks: if iter returns true, it's deleted. */
-extern void
-nf_ct_iterate_cleanup(struct net *net,
-		      int (*iter)(struct nf_conn *i, void *data),
-		      void *data, u32 portid, int report);
-extern void nf_conntrack_free(struct nf_conn *ct);
-extern struct nf_conn *
-nf_conntrack_alloc(struct net *net, u16 zone,
-		   const struct nf_conntrack_tuple *orig,
-		   const struct nf_conntrack_tuple *repl,
-		   gfp_t gfp);
+void nf_ct_iterate_cleanup(struct net *net,
+			   int (*iter)(struct nf_conn *i, void *data),
+			   void *data, u32 portid, int report);
+void nf_conntrack_free(struct nf_conn *ct);
+struct nf_conn *nf_conntrack_alloc(struct net *net, u16 zone,
+				   const struct nf_conntrack_tuple *orig,
+				   const struct nf_conntrack_tuple *repl,
+				   gfp_t gfp);
 
 static inline int nf_ct_is_template(const struct nf_conn *ct)
 {
@@ -287,7 +278,7 @@ static inline bool nf_is_loopback_packet(const struct sk_buff *skb)
 
 struct kernel_param;
 
-extern int nf_conntrack_set_hashsize(const char *val, struct kernel_param *kp);
+int nf_conntrack_set_hashsize(const char *val, struct kernel_param *kp);
 extern unsigned int nf_conntrack_htable_size;
 extern unsigned int nf_conntrack_max;
 extern unsigned int nf_conntrack_hash_rnd;
diff --git a/include/net/netfilter/nf_conntrack_acct.h b/include/net/netfilter/nf_conntrack_acct.h
index 2bdb7a15fe06..fef44edf49c1 100644
--- a/include/net/netfilter/nf_conntrack_acct.h
+++ b/include/net/netfilter/nf_conntrack_acct.h
@@ -42,8 +42,8 @@ struct nf_conn_counter *nf_ct_acct_ext_add(struct nf_conn *ct, gfp_t gfp)
 	return acct;
 };
 
-extern unsigned int
-seq_print_acct(struct seq_file *s, const struct nf_conn *ct, int dir);
+unsigned int seq_print_acct(struct seq_file *s, const struct nf_conn *ct,
+			    int dir);
 
 /* Check if connection tracking accounting is enabled */
 static inline bool nf_ct_acct_enabled(struct net *net)
@@ -57,9 +57,9 @@ static inline void nf_ct_set_acct(struct net *net, bool enable)
 	net->ct.sysctl_acct = enable;
 }
 
-extern int nf_conntrack_acct_pernet_init(struct net *net);
-extern void nf_conntrack_acct_pernet_fini(struct net *net);
+int nf_conntrack_acct_pernet_init(struct net *net);
+void nf_conntrack_acct_pernet_fini(struct net *net);
 
-extern int nf_conntrack_acct_init(void);
-extern void nf_conntrack_acct_fini(void);
+int nf_conntrack_acct_init(void);
+void nf_conntrack_acct_fini(void);
 #endif /* _NF_CONNTRACK_ACCT_H */
diff --git a/include/net/netfilter/nf_conntrack_core.h b/include/net/netfilter/nf_conntrack_core.h
index fb2b6234e937..15308b8eb5b5 100644
--- a/include/net/netfilter/nf_conntrack_core.h
+++ b/include/net/netfilter/nf_conntrack_core.h
@@ -20,49 +20,42 @@
 /* This header is used to share core functionality between the
    standalone connection tracking module, and the compatibility layer's use
    of connection tracking. */
-extern unsigned int nf_conntrack_in(struct net *net,
-				    u_int8_t pf,
-				    unsigned int hooknum,
-				    struct sk_buff *skb);
-
-extern int nf_conntrack_init_net(struct net *net);
-extern void nf_conntrack_cleanup_net(struct net *net);
-extern void nf_conntrack_cleanup_net_list(struct list_head *net_exit_list);
-
-extern int nf_conntrack_proto_pernet_init(struct net *net);
-extern void nf_conntrack_proto_pernet_fini(struct net *net);
-
-extern int nf_conntrack_proto_init(void);
-extern void nf_conntrack_proto_fini(void);
-
-extern int nf_conntrack_init_start(void);
-extern void nf_conntrack_cleanup_start(void);
-
-extern void nf_conntrack_init_end(void);
-extern void nf_conntrack_cleanup_end(void);
-
-extern bool
-nf_ct_get_tuple(const struct sk_buff *skb,
-		unsigned int nhoff,
-		unsigned int dataoff,
-		u_int16_t l3num,
-		u_int8_t protonum,
-		struct nf_conntrack_tuple *tuple,
-		const struct nf_conntrack_l3proto *l3proto,
-		const struct nf_conntrack_l4proto *l4proto);
-
-extern bool
-nf_ct_invert_tuple(struct nf_conntrack_tuple *inverse,
-		   const struct nf_conntrack_tuple *orig,
-		   const struct nf_conntrack_l3proto *l3proto,
-		   const struct nf_conntrack_l4proto *l4proto);
+unsigned int nf_conntrack_in(struct net *net, u_int8_t pf, unsigned int hooknum,
+			     struct sk_buff *skb);
+
+int nf_conntrack_init_net(struct net *net);
+void nf_conntrack_cleanup_net(struct net *net);
+void nf_conntrack_cleanup_net_list(struct list_head *net_exit_list);
+
+int nf_conntrack_proto_pernet_init(struct net *net);
+void nf_conntrack_proto_pernet_fini(struct net *net);
+
+int nf_conntrack_proto_init(void);
+void nf_conntrack_proto_fini(void);
+
+int nf_conntrack_init_start(void);
+void nf_conntrack_cleanup_start(void);
+
+void nf_conntrack_init_end(void);
+void nf_conntrack_cleanup_end(void);
+
+bool nf_ct_get_tuple(const struct sk_buff *skb, unsigned int nhoff,
+		     unsigned int dataoff, u_int16_t l3num, u_int8_t protonum,
+		     struct nf_conntrack_tuple *tuple,
+		     const struct nf_conntrack_l3proto *l3proto,
+		     const struct nf_conntrack_l4proto *l4proto);
+
+bool nf_ct_invert_tuple(struct nf_conntrack_tuple *inverse,
+			const struct nf_conntrack_tuple *orig,
+			const struct nf_conntrack_l3proto *l3proto,
+			const struct nf_conntrack_l4proto *l4proto);
 
 /* Find a connection corresponding to a tuple. */
-extern struct nf_conntrack_tuple_hash *
+struct nf_conntrack_tuple_hash *
 nf_conntrack_find_get(struct net *net, u16 zone,
 		      const struct nf_conntrack_tuple *tuple);
 
-extern int __nf_conntrack_confirm(struct sk_buff *skb);
+int __nf_conntrack_confirm(struct sk_buff *skb);
 
 /* Confirm a connection: returns NF_DROP if packet must be dropped. */
 static inline int nf_conntrack_confirm(struct sk_buff *skb)
diff --git a/include/net/netfilter/nf_conntrack_ecache.h b/include/net/netfilter/nf_conntrack_ecache.h
index 092dc651689f..0e3d08e4b1d3 100644
--- a/include/net/netfilter/nf_conntrack_ecache.h
+++ b/include/net/netfilter/nf_conntrack_ecache.h
@@ -68,10 +68,12 @@ struct nf_ct_event_notifier {
 	int (*fcn)(unsigned int events, struct nf_ct_event *item);
 };
 
-extern int nf_conntrack_register_notifier(struct net *net, struct nf_ct_event_notifier *nb);
-extern void nf_conntrack_unregister_notifier(struct net *net, struct nf_ct_event_notifier *nb);
+int nf_conntrack_register_notifier(struct net *net,
+				   struct nf_ct_event_notifier *nb);
+void nf_conntrack_unregister_notifier(struct net *net,
+				      struct nf_ct_event_notifier *nb);
 
-extern void nf_ct_deliver_cached_events(struct nf_conn *ct);
+void nf_ct_deliver_cached_events(struct nf_conn *ct);
 
 static inline void
 nf_conntrack_event_cache(enum ip_conntrack_events event, struct nf_conn *ct)
@@ -166,8 +168,10 @@ struct nf_exp_event_notifier {
 	int (*fcn)(unsigned int events, struct nf_exp_event *item);
 };
 
-extern int nf_ct_expect_register_notifier(struct net *net, struct nf_exp_event_notifier *nb);
-extern void nf_ct_expect_unregister_notifier(struct net *net, struct nf_exp_event_notifier *nb);
+int nf_ct_expect_register_notifier(struct net *net,
+				   struct nf_exp_event_notifier *nb);
+void nf_ct_expect_unregister_notifier(struct net *net,
+				      struct nf_exp_event_notifier *nb);
 
 static inline void
 nf_ct_expect_event_report(enum ip_conntrack_expect_events event,
@@ -207,11 +211,11 @@ nf_ct_expect_event(enum ip_conntrack_expect_events event,
 	nf_ct_expect_event_report(event, exp, 0, 0);
 }
 
-extern int nf_conntrack_ecache_pernet_init(struct net *net);
-extern void nf_conntrack_ecache_pernet_fini(struct net *net);
+int nf_conntrack_ecache_pernet_init(struct net *net);
+void nf_conntrack_ecache_pernet_fini(struct net *net);
 
-extern int nf_conntrack_ecache_init(void);
-extern void nf_conntrack_ecache_fini(void);
+int nf_conntrack_ecache_init(void);
+void nf_conntrack_ecache_fini(void);
 #else /* CONFIG_NF_CONNTRACK_EVENTS */
 
 static inline void nf_conntrack_event_cache(enum ip_conntrack_events event,
diff --git a/include/net/netfilter/nf_conntrack_extend.h b/include/net/netfilter/nf_conntrack_extend.h
index 88a1d4060d52..86372ae0ee84 100644
--- a/include/net/netfilter/nf_conntrack_extend.h
+++ b/include/net/netfilter/nf_conntrack_extend.h
@@ -73,7 +73,7 @@ static inline void *__nf_ct_ext_find(const struct nf_conn *ct, u8 id)
 	((id##_TYPE *)__nf_ct_ext_find((ext), (id)))
 
 /* Destroy all relationships */
-extern void __nf_ct_ext_destroy(struct nf_conn *ct);
+void __nf_ct_ext_destroy(struct nf_conn *ct);
 static inline void nf_ct_ext_destroy(struct nf_conn *ct)
 {
 	if (ct->ext)
diff --git a/include/net/netfilter/nf_conntrack_helper.h b/include/net/netfilter/nf_conntrack_helper.h
index 26c4ae5bfbb8..6cf614bc0029 100644
--- a/include/net/netfilter/nf_conntrack_helper.h
+++ b/include/net/netfilter/nf_conntrack_helper.h
@@ -52,21 +52,24 @@ struct nf_conntrack_helper {
 	unsigned int queue_num;		/* For user-space helpers. */
 };
 
-extern struct nf_conntrack_helper *
-__nf_conntrack_helper_find(const char *name, u16 l3num, u8 protonum);
+struct nf_conntrack_helper *__nf_conntrack_helper_find(const char *name,
+						       u16 l3num, u8 protonum);
 
-extern struct nf_conntrack_helper *
-nf_conntrack_helper_try_module_get(const char *name, u16 l3num, u8 protonum);
+struct nf_conntrack_helper *nf_conntrack_helper_try_module_get(const char *name,
+							       u16 l3num,
+							       u8 protonum);
 
-extern int nf_conntrack_helper_register(struct nf_conntrack_helper *);
-extern void nf_conntrack_helper_unregister(struct nf_conntrack_helper *);
+int nf_conntrack_helper_register(struct nf_conntrack_helper *);
+void nf_conntrack_helper_unregister(struct nf_conntrack_helper *);
 
-extern struct nf_conn_help *nf_ct_helper_ext_add(struct nf_conn *ct, struct nf_conntrack_helper *helper, gfp_t gfp);
+struct nf_conn_help *nf_ct_helper_ext_add(struct nf_conn *ct,
+					  struct nf_conntrack_helper *helper,
+					  gfp_t gfp);
 
-extern int __nf_ct_try_assign_helper(struct nf_conn *ct, struct nf_conn *tmpl,
-				     gfp_t flags);
+int __nf_ct_try_assign_helper(struct nf_conn *ct, struct nf_conn *tmpl,
+			      gfp_t flags);
 
-extern void nf_ct_helper_destroy(struct nf_conn *ct);
+void nf_ct_helper_destroy(struct nf_conn *ct);
 
 static inline struct nf_conn_help *nfct_help(const struct nf_conn *ct)
 {
@@ -82,17 +85,16 @@ static inline void *nfct_help_data(const struct nf_conn *ct)
 	return (void *)help->data;
 }
 
-extern int nf_conntrack_helper_pernet_init(struct net *net);
-extern void nf_conntrack_helper_pernet_fini(struct net *net);
+int nf_conntrack_helper_pernet_init(struct net *net);
+void nf_conntrack_helper_pernet_fini(struct net *net);
 
-extern int nf_conntrack_helper_init(void);
-extern void nf_conntrack_helper_fini(void);
+int nf_conntrack_helper_init(void);
+void nf_conntrack_helper_fini(void);
 
-extern int nf_conntrack_broadcast_help(struct sk_buff *skb,
-				       unsigned int protoff,
-				       struct nf_conn *ct,
-				       enum ip_conntrack_info ctinfo,
-				       unsigned int timeout);
+int nf_conntrack_broadcast_help(struct sk_buff *skb, unsigned int protoff,
+				struct nf_conn *ct,
+				enum ip_conntrack_info ctinfo,
+				unsigned int timeout);
 
 struct nf_ct_helper_expectfn {
 	struct list_head head;
diff --git a/include/net/netfilter/nf_conntrack_l3proto.h b/include/net/netfilter/nf_conntrack_l3proto.h
index 3bb89eac3fa1..3efab704b7eb 100644
--- a/include/net/netfilter/nf_conntrack_l3proto.h
+++ b/include/net/netfilter/nf_conntrack_l3proto.h
@@ -77,17 +77,17 @@ struct nf_conntrack_l3proto {
 extern struct nf_conntrack_l3proto __rcu *nf_ct_l3protos[AF_MAX];
 
 /* Protocol pernet registration. */
-extern int nf_ct_l3proto_pernet_register(struct net *net,
-					 struct nf_conntrack_l3proto *proto);
-extern void nf_ct_l3proto_pernet_unregister(struct net *net,
-					    struct nf_conntrack_l3proto *proto);
+int nf_ct_l3proto_pernet_register(struct net *net,
+				  struct nf_conntrack_l3proto *proto);
+void nf_ct_l3proto_pernet_unregister(struct net *net,
+				     struct nf_conntrack_l3proto *proto);
 
 /* Protocol global registration. */
-extern int nf_ct_l3proto_register(struct nf_conntrack_l3proto *proto);
-extern void nf_ct_l3proto_unregister(struct nf_conntrack_l3proto *proto);
+int nf_ct_l3proto_register(struct nf_conntrack_l3proto *proto);
+void nf_ct_l3proto_unregister(struct nf_conntrack_l3proto *proto);
 
-extern struct nf_conntrack_l3proto *nf_ct_l3proto_find_get(u_int16_t l3proto);
-extern void nf_ct_l3proto_put(struct nf_conntrack_l3proto *p);
+struct nf_conntrack_l3proto *nf_ct_l3proto_find_get(u_int16_t l3proto);
+void nf_ct_l3proto_put(struct nf_conntrack_l3proto *p);
 
 /* Existing built-in protocols */
 extern struct nf_conntrack_l3proto nf_conntrack_l3proto_generic;
diff --git a/include/net/netfilter/nf_conntrack_l4proto.h b/include/net/netfilter/nf_conntrack_l4proto.h
index b411d7b17dec..4c8d573830b7 100644
--- a/include/net/netfilter/nf_conntrack_l4proto.h
+++ b/include/net/netfilter/nf_conntrack_l4proto.h
@@ -114,22 +114,22 @@ extern struct nf_conntrack_l4proto nf_conntrack_l4proto_generic;
 
 #define MAX_NF_CT_PROTO 256
 
-extern struct nf_conntrack_l4proto *
-__nf_ct_l4proto_find(u_int16_t l3proto, u_int8_t l4proto);
+struct nf_conntrack_l4proto *__nf_ct_l4proto_find(u_int16_t l3proto,
+						  u_int8_t l4proto);
 
-extern struct nf_conntrack_l4proto *
-nf_ct_l4proto_find_get(u_int16_t l3proto, u_int8_t l4proto);
-extern void nf_ct_l4proto_put(struct nf_conntrack_l4proto *p);
+struct nf_conntrack_l4proto *nf_ct_l4proto_find_get(u_int16_t l3proto,
+						    u_int8_t l4proto);
+void nf_ct_l4proto_put(struct nf_conntrack_l4proto *p);
 
 /* Protocol pernet registration. */
-extern int nf_ct_l4proto_pernet_register(struct net *net,
-					 struct nf_conntrack_l4proto *proto);
-extern void nf_ct_l4proto_pernet_unregister(struct net *net,
-					    struct nf_conntrack_l4proto *proto);
+int nf_ct_l4proto_pernet_register(struct net *net,
+				  struct nf_conntrack_l4proto *proto);
+void nf_ct_l4proto_pernet_unregister(struct net *net,
+				     struct nf_conntrack_l4proto *proto);
 
 /* Protocol global registration. */
-extern int nf_ct_l4proto_register(struct nf_conntrack_l4proto *proto);
-extern void nf_ct_l4proto_unregister(struct nf_conntrack_l4proto *proto);
+int nf_ct_l4proto_register(struct nf_conntrack_l4proto *proto);
+void nf_ct_l4proto_unregister(struct nf_conntrack_l4proto *proto);
 
 static inline void nf_ct_kfree_compat_sysctl_table(struct nf_proto_net *pn)
 {
@@ -140,11 +140,11 @@ static inline void nf_ct_kfree_compat_sysctl_table(struct nf_proto_net *pn)
 }
 
 /* Generic netlink helpers */
-extern int nf_ct_port_tuple_to_nlattr(struct sk_buff *skb,
-				      const struct nf_conntrack_tuple *tuple);
-extern int nf_ct_port_nlattr_to_tuple(struct nlattr *tb[],
-				      struct nf_conntrack_tuple *t);
-extern int nf_ct_port_nlattr_tuple_size(void);
+int nf_ct_port_tuple_to_nlattr(struct sk_buff *skb,
+			       const struct nf_conntrack_tuple *tuple);
+int nf_ct_port_nlattr_to_tuple(struct nlattr *tb[],
+			       struct nf_conntrack_tuple *t);
+int nf_ct_port_nlattr_tuple_size(void);
 extern const struct nla_policy nf_ct_port_nla_policy[];
 
 #ifdef CONFIG_SYSCTL
diff --git a/include/net/netfilter/nf_conntrack_seqadj.h b/include/net/netfilter/nf_conntrack_seqadj.h
index f6177a5fe0ca..4b3362991a25 100644
--- a/include/net/netfilter/nf_conntrack_seqadj.h
+++ b/include/net/netfilter/nf_conntrack_seqadj.h
@@ -30,22 +30,18 @@ static inline struct nf_conn_seqadj *nfct_seqadj_ext_add(struct nf_conn *ct)
 	return nf_ct_ext_add(ct, NF_CT_EXT_SEQADJ, GFP_ATOMIC);
 }
 
-extern int nf_ct_seqadj_init(struct nf_conn *ct, enum ip_conntrack_info ctinfo,
-			     s32 off);
-extern int nf_ct_seqadj_set(struct nf_conn *ct, enum ip_conntrack_info ctinfo,
-			    __be32 seq, s32 off);
-extern void nf_ct_tcp_seqadj_set(struct sk_buff *skb,
-				 struct nf_conn *ct,
-				 enum ip_conntrack_info ctinfo,
-				 s32 off);
-
-extern int nf_ct_seq_adjust(struct sk_buff *skb,
-			    struct nf_conn *ct, enum ip_conntrack_info ctinfo,
-			    unsigned int protoff);
-extern s32 nf_ct_seq_offset(const struct nf_conn *ct, enum ip_conntrack_dir,
-			    u32 seq);
-
-extern int nf_conntrack_seqadj_init(void);
-extern void nf_conntrack_seqadj_fini(void);
+int nf_ct_seqadj_init(struct nf_conn *ct, enum ip_conntrack_info ctinfo,
+		      s32 off);
+int nf_ct_seqadj_set(struct nf_conn *ct, enum ip_conntrack_info ctinfo,
+		     __be32 seq, s32 off);
+void nf_ct_tcp_seqadj_set(struct sk_buff *skb, struct nf_conn *ct,
+			  enum ip_conntrack_info ctinfo, s32 off);
+
+int nf_ct_seq_adjust(struct sk_buff *skb, struct nf_conn *ct,
+		     enum ip_conntrack_info ctinfo, unsigned int protoff);
+s32 nf_ct_seq_offset(const struct nf_conn *ct, enum ip_conntrack_dir, u32 seq);
+
+int nf_conntrack_seqadj_init(void);
+void nf_conntrack_seqadj_fini(void);
 
 #endif /* _NF_CONNTRACK_SEQADJ_H */
diff --git a/include/net/netfilter/nf_conntrack_synproxy.h b/include/net/netfilter/nf_conntrack_synproxy.h
index 806f54a290d6..968186642bb1 100644
--- a/include/net/netfilter/nf_conntrack_synproxy.h
+++ b/include/net/netfilter/nf_conntrack_synproxy.h
@@ -56,22 +56,20 @@ struct synproxy_options {
 
 struct tcphdr;
 struct xt_synproxy_info;
-extern void synproxy_parse_options(const struct sk_buff *skb, unsigned int doff,
-				   const struct tcphdr *th,
-				   struct synproxy_options *opts);
-extern unsigned int synproxy_options_size(const struct synproxy_options *opts);
-extern void synproxy_build_options(struct tcphdr *th,
-				   const struct synproxy_options *opts);
+void synproxy_parse_options(const struct sk_buff *skb, unsigned int doff,
+			    const struct tcphdr *th,
+			    struct synproxy_options *opts);
+unsigned int synproxy_options_size(const struct synproxy_options *opts);
+void synproxy_build_options(struct tcphdr *th,
+			    const struct synproxy_options *opts);
 
-extern void synproxy_init_timestamp_cookie(const struct xt_synproxy_info *info,
-					   struct synproxy_options *opts);
-extern void synproxy_check_timestamp_cookie(struct synproxy_options *opts);
+void synproxy_init_timestamp_cookie(const struct xt_synproxy_info *info,
+				    struct synproxy_options *opts);
+void synproxy_check_timestamp_cookie(struct synproxy_options *opts);
 
-extern unsigned int synproxy_tstamp_adjust(struct sk_buff *skb,
-					   unsigned int protoff,
-					   struct tcphdr *th,
-					   struct nf_conn *ct,
-					   enum ip_conntrack_info ctinfo,
-					   const struct nf_conn_synproxy *synproxy);
+unsigned int synproxy_tstamp_adjust(struct sk_buff *skb, unsigned int protoff,
+				    struct tcphdr *th, struct nf_conn *ct,
+				    enum ip_conntrack_info ctinfo,
+				    const struct nf_conn_synproxy *synproxy);
 
 #endif /* _NF_CONNTRACK_SYNPROXY_H */
diff --git a/include/net/netfilter/nf_conntrack_timeout.h b/include/net/netfilter/nf_conntrack_timeout.h
index d23aceb16d94..62308713dd7f 100644
--- a/include/net/netfilter/nf_conntrack_timeout.h
+++ b/include/net/netfilter/nf_conntrack_timeout.h
@@ -76,8 +76,8 @@ nf_ct_timeout_lookup(struct net *net, struct nf_conn *ct,
 }
 
 #ifdef CONFIG_NF_CONNTRACK_TIMEOUT
-extern int nf_conntrack_timeout_init(void);
-extern void nf_conntrack_timeout_fini(void);
+int nf_conntrack_timeout_init(void);
+void nf_conntrack_timeout_fini(void);
 #else
 static inline int nf_conntrack_timeout_init(void)
 {
diff --git a/include/net/netfilter/nf_conntrack_timestamp.h b/include/net/netfilter/nf_conntrack_timestamp.h
index b00461413efd..300ae2209f25 100644
--- a/include/net/netfilter/nf_conntrack_timestamp.h
+++ b/include/net/netfilter/nf_conntrack_timestamp.h
@@ -48,11 +48,11 @@ static inline void nf_ct_set_tstamp(struct net *net, bool enable)
 }
 
 #ifdef CONFIG_NF_CONNTRACK_TIMESTAMP
-extern int nf_conntrack_tstamp_pernet_init(struct net *net);
-extern void nf_conntrack_tstamp_pernet_fini(struct net *net);
+int nf_conntrack_tstamp_pernet_init(struct net *net);
+void nf_conntrack_tstamp_pernet_fini(struct net *net);
 
-extern int nf_conntrack_tstamp_init(void);
-extern void nf_conntrack_tstamp_fini(void);
+int nf_conntrack_tstamp_init(void);
+void nf_conntrack_tstamp_fini(void);
 #else
 static inline int nf_conntrack_tstamp_pernet_init(struct net *net)
 {
diff --git a/include/net/netfilter/nf_nat.h b/include/net/netfilter/nf_nat.h
index 59a192420053..c29b4e545f87 100644
--- a/include/net/netfilter/nf_nat.h
+++ b/include/net/netfilter/nf_nat.h
@@ -41,13 +41,13 @@ struct nf_conn_nat {
 };
 
 /* Set up the info structure to map into this range. */
-extern unsigned int nf_nat_setup_info(struct nf_conn *ct,
-				      const struct nf_nat_range *range,
-				      enum nf_nat_manip_type maniptype);
+unsigned int nf_nat_setup_info(struct nf_conn *ct,
+			       const struct nf_nat_range *range,
+			       enum nf_nat_manip_type maniptype);
 
 /* Is this tuple already taken? (not by us)*/
-extern int nf_nat_used_tuple(const struct nf_conntrack_tuple *tuple,
-			     const struct nf_conn *ignored_conntrack);
+int nf_nat_used_tuple(const struct nf_conntrack_tuple *tuple,
+		      const struct nf_conn *ignored_conntrack);
 
 static inline struct nf_conn_nat *nfct_nat(const struct nf_conn *ct)
 {
diff --git a/include/net/netfilter/nf_nat_core.h b/include/net/netfilter/nf_nat_core.h
index 972e1e47ec79..fbfd1ba4254e 100644
--- a/include/net/netfilter/nf_nat_core.h
+++ b/include/net/netfilter/nf_nat_core.h
@@ -7,12 +7,10 @@
 /* This header used to share core functionality between the standalone
    NAT module, and the compatibility layer's use of NAT for masquerading. */
 
-extern unsigned int nf_nat_packet(struct nf_conn *ct,
-				  enum ip_conntrack_info ctinfo,
-				  unsigned int hooknum,
-				  struct sk_buff *skb);
+unsigned int nf_nat_packet(struct nf_conn *ct, enum ip_conntrack_info ctinfo,
+			   unsigned int hooknum, struct sk_buff *skb);
 
-extern int nf_xfrm_me_harder(struct sk_buff *skb, unsigned int family);
+int nf_xfrm_me_harder(struct sk_buff *skb, unsigned int family);
 
 static inline int nf_nat_initialized(struct nf_conn *ct,
 				     enum nf_nat_manip_type manip)
diff --git a/include/net/netfilter/nf_nat_helper.h b/include/net/netfilter/nf_nat_helper.h
index 404324d1d0c4..01bcc6bfbcc9 100644
--- a/include/net/netfilter/nf_nat_helper.h
+++ b/include/net/netfilter/nf_nat_helper.h
@@ -7,14 +7,11 @@
 struct sk_buff;
 
 /* These return true or false. */
-extern int __nf_nat_mangle_tcp_packet(struct sk_buff *skb,
-				      struct nf_conn *ct,
-				      enum ip_conntrack_info ctinfo,
-				      unsigned int protoff,
-				      unsigned int match_offset,
-				      unsigned int match_len,
-				      const char *rep_buffer,
-				      unsigned int rep_len, bool adjust);
+int __nf_nat_mangle_tcp_packet(struct sk_buff *skb, struct nf_conn *ct,
+			       enum ip_conntrack_info ctinfo,
+			       unsigned int protoff, unsigned int match_offset,
+			       unsigned int match_len, const char *rep_buffer,
+			       unsigned int rep_len, bool adjust);
 
 static inline int nf_nat_mangle_tcp_packet(struct sk_buff *skb,
 					   struct nf_conn *ct,
@@ -30,18 +27,14 @@ static inline int nf_nat_mangle_tcp_packet(struct sk_buff *skb,
 					  rep_buffer, rep_len, true);
 }
 
-extern int nf_nat_mangle_udp_packet(struct sk_buff *skb,
-				    struct nf_conn *ct,
-				    enum ip_conntrack_info ctinfo,
-				    unsigned int protoff,
-				    unsigned int match_offset,
-				    unsigned int match_len,
-				    const char *rep_buffer,
-				    unsigned int rep_len);
+int nf_nat_mangle_udp_packet(struct sk_buff *skb, struct nf_conn *ct,
+			     enum ip_conntrack_info ctinfo,
+			     unsigned int protoff, unsigned int match_offset,
+			     unsigned int match_len, const char *rep_buffer,
+			     unsigned int rep_len);
 
 /* Setup NAT on this expected conntrack so it follows master, but goes
  * to port ct->master->saved_proto. */
-extern void nf_nat_follow_master(struct nf_conn *ct,
-				 struct nf_conntrack_expect *this);
+void nf_nat_follow_master(struct nf_conn *ct, struct nf_conntrack_expect *this);
 
 #endif
diff --git a/include/net/netfilter/nf_nat_l3proto.h b/include/net/netfilter/nf_nat_l3proto.h
index bd3b97e02c82..5a2919b2e09a 100644
--- a/include/net/netfilter/nf_nat_l3proto.h
+++ b/include/net/netfilter/nf_nat_l3proto.h
@@ -35,18 +35,15 @@ struct nf_nat_l3proto {
 				   struct nf_nat_range *range);
 };
 
-extern int nf_nat_l3proto_register(const struct nf_nat_l3proto *);
-extern void nf_nat_l3proto_unregister(const struct nf_nat_l3proto *);
-extern const struct nf_nat_l3proto *__nf_nat_l3proto_find(u8 l3proto);
-
-extern int nf_nat_icmp_reply_translation(struct sk_buff *skb,
-					 struct nf_conn *ct,
-					 enum ip_conntrack_info ctinfo,
-					 unsigned int hooknum);
-extern int nf_nat_icmpv6_reply_translation(struct sk_buff *skb,
-					   struct nf_conn *ct,
-					   enum ip_conntrack_info ctinfo,
-					   unsigned int hooknum,
-					   unsigned int hdrlen);
+int nf_nat_l3proto_register(const struct nf_nat_l3proto *);
+void nf_nat_l3proto_unregister(const struct nf_nat_l3proto *);
+const struct nf_nat_l3proto *__nf_nat_l3proto_find(u8 l3proto);
+
+int nf_nat_icmp_reply_translation(struct sk_buff *skb, struct nf_conn *ct,
+				  enum ip_conntrack_info ctinfo,
+				  unsigned int hooknum);
+int nf_nat_icmpv6_reply_translation(struct sk_buff *skb, struct nf_conn *ct,
+				    enum ip_conntrack_info ctinfo,
+				    unsigned int hooknum, unsigned int hdrlen);
 
 #endif /* _NF_NAT_L3PROTO_H */
diff --git a/include/net/netfilter/nf_nat_l4proto.h b/include/net/netfilter/nf_nat_l4proto.h
index 24feb68d1bcc..12f4cc841b6e 100644
--- a/include/net/netfilter/nf_nat_l4proto.h
+++ b/include/net/netfilter/nf_nat_l4proto.h
@@ -42,10 +42,11 @@ struct nf_nat_l4proto {
 };
 
 /* Protocol registration. */
-extern int nf_nat_l4proto_register(u8 l3proto, const struct nf_nat_l4proto *l4proto);
-extern void nf_nat_l4proto_unregister(u8 l3proto, const struct nf_nat_l4proto *l4proto);
+int nf_nat_l4proto_register(u8 l3proto, const struct nf_nat_l4proto *l4proto);
+void nf_nat_l4proto_unregister(u8 l3proto,
+			       const struct nf_nat_l4proto *l4proto);
 
-extern const struct nf_nat_l4proto *__nf_nat_l4proto_find(u8 l3proto, u8 l4proto);
+const struct nf_nat_l4proto *__nf_nat_l4proto_find(u8 l3proto, u8 l4proto);
 
 /* Built-in protocols. */
 extern const struct nf_nat_l4proto nf_nat_l4proto_tcp;
@@ -54,19 +55,18 @@ extern const struct nf_nat_l4proto nf_nat_l4proto_icmp;
 extern const struct nf_nat_l4proto nf_nat_l4proto_icmpv6;
 extern const struct nf_nat_l4proto nf_nat_l4proto_unknown;
 
-extern bool nf_nat_l4proto_in_range(const struct nf_conntrack_tuple *tuple,
-				    enum nf_nat_manip_type maniptype,
-				    const union nf_conntrack_man_proto *min,
-				    const union nf_conntrack_man_proto *max);
+bool nf_nat_l4proto_in_range(const struct nf_conntrack_tuple *tuple,
+			     enum nf_nat_manip_type maniptype,
+			     const union nf_conntrack_man_proto *min,
+			     const union nf_conntrack_man_proto *max);
 
-extern void nf_nat_l4proto_unique_tuple(const struct nf_nat_l3proto *l3proto,
-					struct nf_conntrack_tuple *tuple,
-					const struct nf_nat_range *range,
-					enum nf_nat_manip_type maniptype,
-					const struct nf_conn *ct,
-					u16 *rover);
+void nf_nat_l4proto_unique_tuple(const struct nf_nat_l3proto *l3proto,
+				 struct nf_conntrack_tuple *tuple,
+				 const struct nf_nat_range *range,
+				 enum nf_nat_manip_type maniptype,
+				 const struct nf_conn *ct, u16 *rover);
 
-extern int nf_nat_l4proto_nlattr_to_range(struct nlattr *tb[],
-					  struct nf_nat_range *range);
+int nf_nat_l4proto_nlattr_to_range(struct nlattr *tb[],
+				   struct nf_nat_range *range);
 
 #endif /*_NF_NAT_L4PROTO_H*/
diff --git a/include/net/netfilter/nf_queue.h b/include/net/netfilter/nf_queue.h
index aaba4bbcdda0..c1d5b3e34a21 100644
--- a/include/net/netfilter/nf_queue.h
+++ b/include/net/netfilter/nf_queue.h
@@ -28,7 +28,7 @@ struct nf_queue_handler {
 
 void nf_register_queue_handler(const struct nf_queue_handler *qh);
 void nf_unregister_queue_handler(void);
-extern void nf_reinject(struct nf_queue_entry *entry, unsigned int verdict);
+void nf_reinject(struct nf_queue_entry *entry, unsigned int verdict);
 
 bool nf_queue_entry_get_refs(struct nf_queue_entry *entry);
 void nf_queue_entry_release_refs(struct nf_queue_entry *entry);
diff --git a/include/net/netfilter/xt_rateest.h b/include/net/netfilter/xt_rateest.h
index 495c71f66e7e..79f45e19f31e 100644
--- a/include/net/netfilter/xt_rateest.h
+++ b/include/net/netfilter/xt_rateest.h
@@ -16,7 +16,7 @@ struct xt_rateest {
 	struct rcu_head			rcu;
 };
 
-extern struct xt_rateest *xt_rateest_lookup(const char *name);
-extern void xt_rateest_put(struct xt_rateest *est);
+struct xt_rateest *xt_rateest_lookup(const char *name);
+void xt_rateest_put(struct xt_rateest *est);
 
 #endif /* _XT_RATEEST_H */
-- 
cgit 


From 7b584460689d4326d2d1664271ab0c56b56d4328 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: sctp: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/sctp/sctp.h | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index 3794c5ad20fe..c5fe80697f8d 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -90,12 +90,11 @@
 /*
  * sctp/protocol.c
  */
-extern int sctp_copy_local_addr_list(struct net *, struct sctp_bind_addr *,
-				     sctp_scope_t, gfp_t gfp,
-				     int flags);
-extern struct sctp_pf *sctp_get_pf_specific(sa_family_t family);
-extern int sctp_register_pf(struct sctp_pf *, sa_family_t);
-extern void sctp_addr_wq_mgmt(struct net *, struct sctp_sockaddr_entry *, int);
+int sctp_copy_local_addr_list(struct net *, struct sctp_bind_addr *,
+			      sctp_scope_t, gfp_t gfp, int flags);
+struct sctp_pf *sctp_get_pf_specific(sa_family_t family);
+int sctp_register_pf(struct sctp_pf *, sa_family_t);
+void sctp_addr_wq_mgmt(struct net *, struct sctp_sockaddr_entry *, int);
 
 /*
  * sctp/socket.c
@@ -110,7 +109,7 @@ void sctp_sock_rfree(struct sk_buff *skb);
 void sctp_copy_sock(struct sock *newsk, struct sock *sk,
 		    struct sctp_association *asoc);
 extern struct percpu_counter sctp_sockets_allocated;
-extern int sctp_asconf_mgmt(struct sctp_sock *, struct sctp_sockaddr_entry *);
+int sctp_asconf_mgmt(struct sctp_sock *, struct sctp_sockaddr_entry *);
 
 /*
  * sctp/primitive.c
-- 
cgit 


From c04ee4b1136e462722567cf6e76bb35a181574a7 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 23 Sep 2013 13:32:51 -0700
Subject: Revert "Revert "USB: EHCI: support running URB giveback in tasklet
 context""

This reverts commit 3b8d7321ed4b8511e17048303b806ffcc2806077, which
brings back commit 428aac8a81058e2303677a8fbf26670229e51d3a as it should
be working for the 3.13-rc1 merge window now that Alan's other fixes are
here in the tree already.

Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-fsl.c       | 2 +-
 drivers/usb/host/ehci-grlib.c     | 2 +-
 drivers/usb/host/ehci-hcd.c       | 2 +-
 drivers/usb/host/ehci-mv.c        | 2 +-
 drivers/usb/host/ehci-octeon.c    | 2 +-
 drivers/usb/host/ehci-pmcmsp.c    | 2 +-
 drivers/usb/host/ehci-ppc-of.c    | 2 +-
 drivers/usb/host/ehci-ps3.c       | 2 +-
 drivers/usb/host/ehci-q.c         | 5 -----
 drivers/usb/host/ehci-sead3.c     | 2 +-
 drivers/usb/host/ehci-sh.c        | 2 +-
 drivers/usb/host/ehci-tilegx.c    | 2 +-
 drivers/usb/host/ehci-w90x900.c   | 2 +-
 drivers/usb/host/ehci-xilinx-of.c | 2 +-
 14 files changed, 13 insertions(+), 18 deletions(-)

diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index 848fc46ad80c..e41cfdc9bf93 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -669,7 +669,7 @@ static const struct hc_driver ehci_fsl_hc_driver = {
 	 * generic hardware linkage
 	 */
 	.irq = ehci_irq,
-	.flags = HCD_USB2 | HCD_MEMORY,
+	.flags = HCD_USB2 | HCD_MEMORY | HCD_BH,
 
 	/*
 	 * basic lifecycle operations
diff --git a/drivers/usb/host/ehci-grlib.c b/drivers/usb/host/ehci-grlib.c
index 83ab51af250f..b52a66ce92e8 100644
--- a/drivers/usb/host/ehci-grlib.c
+++ b/drivers/usb/host/ehci-grlib.c
@@ -43,7 +43,7 @@ static const struct hc_driver ehci_grlib_hc_driver = {
 	 * generic hardware linkage
 	 */
 	.irq			= ehci_irq,
-	.flags			= HCD_MEMORY | HCD_USB2,
+	.flags			= HCD_MEMORY | HCD_USB2 | HCD_BH,
 
 	/*
 	 * basic lifecycle operations
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 86ab9fd9fe9e..5d6022f30ebe 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1158,7 +1158,7 @@ static const struct hc_driver ehci_hc_driver = {
 	 * generic hardware linkage
 	 */
 	.irq =			ehci_irq,
-	.flags =		HCD_MEMORY | HCD_USB2,
+	.flags =		HCD_MEMORY | HCD_USB2 | HCD_BH,
 
 	/*
 	 * basic lifecycle operations
diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c
index 35cdbd88bbbe..417c10da9450 100644
--- a/drivers/usb/host/ehci-mv.c
+++ b/drivers/usb/host/ehci-mv.c
@@ -96,7 +96,7 @@ static const struct hc_driver mv_ehci_hc_driver = {
 	 * generic hardware linkage
 	 */
 	.irq = ehci_irq,
-	.flags = HCD_MEMORY | HCD_USB2,
+	.flags = HCD_MEMORY | HCD_USB2 | HCD_BH,
 
 	/*
 	 * basic lifecycle operations
diff --git a/drivers/usb/host/ehci-octeon.c b/drivers/usb/host/ehci-octeon.c
index 45cc00158412..ab0397e4d8f3 100644
--- a/drivers/usb/host/ehci-octeon.c
+++ b/drivers/usb/host/ehci-octeon.c
@@ -51,7 +51,7 @@ static const struct hc_driver ehci_octeon_hc_driver = {
 	 * generic hardware linkage
 	 */
 	.irq			= ehci_irq,
-	.flags			= HCD_MEMORY | HCD_USB2,
+	.flags			= HCD_MEMORY | HCD_USB2 | HCD_BH,
 
 	/*
 	 * basic lifecycle operations
diff --git a/drivers/usb/host/ehci-pmcmsp.c b/drivers/usb/host/ehci-pmcmsp.c
index 601e208bd782..893b707f0000 100644
--- a/drivers/usb/host/ehci-pmcmsp.c
+++ b/drivers/usb/host/ehci-pmcmsp.c
@@ -286,7 +286,7 @@ static const struct hc_driver ehci_msp_hc_driver = {
 #else
 	.irq =			ehci_irq,
 #endif
-	.flags =		HCD_MEMORY | HCD_USB2,
+	.flags =		HCD_MEMORY | HCD_USB2 | HCD_BH,
 
 	/*
 	 * basic lifecycle operations
diff --git a/drivers/usb/host/ehci-ppc-of.c b/drivers/usb/host/ehci-ppc-of.c
index 932293fa32de..6cc5567bf9c8 100644
--- a/drivers/usb/host/ehci-ppc-of.c
+++ b/drivers/usb/host/ehci-ppc-of.c
@@ -28,7 +28,7 @@ static const struct hc_driver ehci_ppc_of_hc_driver = {
 	 * generic hardware linkage
 	 */
 	.irq			= ehci_irq,
-	.flags			= HCD_MEMORY | HCD_USB2,
+	.flags			= HCD_MEMORY | HCD_USB2 | HCD_BH,
 
 	/*
 	 * basic lifecycle operations
diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c
index fd983771b025..8188542ba17e 100644
--- a/drivers/usb/host/ehci-ps3.c
+++ b/drivers/usb/host/ehci-ps3.c
@@ -71,7 +71,7 @@ static const struct hc_driver ps3_ehci_hc_driver = {
 	.product_desc		= "PS3 EHCI Host Controller",
 	.hcd_priv_size		= sizeof(struct ehci_hcd),
 	.irq			= ehci_irq,
-	.flags			= HCD_MEMORY | HCD_USB2,
+	.flags			= HCD_MEMORY | HCD_USB2 | HCD_BH,
 	.reset			= ps3_ehci_hc_reset,
 	.start			= ehci_run,
 	.stop			= ehci_stop,
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index a7f776a13eb1..e321804c3475 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -247,8 +247,6 @@ static int qtd_copy_status (
 
 static void
 ehci_urb_done(struct ehci_hcd *ehci, struct urb *urb, int status)
-__releases(ehci->lock)
-__acquires(ehci->lock)
 {
 	if (usb_pipetype(urb->pipe) == PIPE_INTERRUPT) {
 		/* ... update hc-wide periodic stats */
@@ -274,11 +272,8 @@ __acquires(ehci->lock)
 		urb->actual_length, urb->transfer_buffer_length);
 #endif
 
-	/* complete() can reenter this HCD */
 	usb_hcd_unlink_urb_from_ep(ehci_to_hcd(ehci), urb);
-	spin_unlock (&ehci->lock);
 	usb_hcd_giveback_urb(ehci_to_hcd(ehci), urb, status);
-	spin_lock (&ehci->lock);
 }
 
 static int qh_schedule (struct ehci_hcd *ehci, struct ehci_qh *qh);
diff --git a/drivers/usb/host/ehci-sead3.c b/drivers/usb/host/ehci-sead3.c
index b2de52d39614..8a734498079b 100644
--- a/drivers/usb/host/ehci-sead3.c
+++ b/drivers/usb/host/ehci-sead3.c
@@ -55,7 +55,7 @@ const struct hc_driver ehci_sead3_hc_driver = {
 	 * generic hardware linkage
 	 */
 	.irq			= ehci_irq,
-	.flags			= HCD_MEMORY | HCD_USB2,
+	.flags			= HCD_MEMORY | HCD_USB2 | HCD_BH,
 
 	/*
 	 * basic lifecycle operations
diff --git a/drivers/usb/host/ehci-sh.c b/drivers/usb/host/ehci-sh.c
index 93e59a13bc1f..dc899eb2b861 100644
--- a/drivers/usb/host/ehci-sh.c
+++ b/drivers/usb/host/ehci-sh.c
@@ -36,7 +36,7 @@ static const struct hc_driver ehci_sh_hc_driver = {
 	 * generic hardware linkage
 	 */
 	.irq				= ehci_irq,
-	.flags				= HCD_USB2 | HCD_MEMORY,
+	.flags				= HCD_USB2 | HCD_MEMORY | HCD_BH,
 
 	/*
 	 * basic lifecycle operations
diff --git a/drivers/usb/host/ehci-tilegx.c b/drivers/usb/host/ehci-tilegx.c
index cca4be90a864..67026ffbf9a8 100644
--- a/drivers/usb/host/ehci-tilegx.c
+++ b/drivers/usb/host/ehci-tilegx.c
@@ -61,7 +61,7 @@ static const struct hc_driver ehci_tilegx_hc_driver = {
 	 * Generic hardware linkage.
 	 */
 	.irq			= ehci_irq,
-	.flags			= HCD_MEMORY | HCD_USB2,
+	.flags			= HCD_MEMORY | HCD_USB2 | HCD_BH,
 
 	/*
 	 * Basic lifecycle operations.
diff --git a/drivers/usb/host/ehci-w90x900.c b/drivers/usb/host/ehci-w90x900.c
index 59e0e24c753f..1c370dfbee0d 100644
--- a/drivers/usb/host/ehci-w90x900.c
+++ b/drivers/usb/host/ehci-w90x900.c
@@ -108,7 +108,7 @@ static const struct hc_driver ehci_w90x900_hc_driver = {
 	 * generic hardware linkage
 	 */
 	.irq = ehci_irq,
-	.flags = HCD_USB2|HCD_MEMORY,
+	.flags = HCD_USB2|HCD_MEMORY|HCD_BH,
 
 	/*
 	 * basic lifecycle operations
diff --git a/drivers/usb/host/ehci-xilinx-of.c b/drivers/usb/host/ehci-xilinx-of.c
index eba962e6ebfb..95979f9f4381 100644
--- a/drivers/usb/host/ehci-xilinx-of.c
+++ b/drivers/usb/host/ehci-xilinx-of.c
@@ -79,7 +79,7 @@ static const struct hc_driver ehci_xilinx_of_hc_driver = {
 	 * generic hardware linkage
 	 */
 	.irq			= ehci_irq,
-	.flags			= HCD_MEMORY | HCD_USB2,
+	.flags			= HCD_MEMORY | HCD_USB2 | HCD_BH,
 
 	/*
 	 * basic lifecycle operations
-- 
cgit 


From 9db5507947659065c5ffd76e4dd243f4a26a0bbb Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 23 Sep 2013 21:55:22 +0800
Subject: openvswitch: remove duplicated include from vport-vxlan.c

Remove duplicated include.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Jesse Gross <jesse@nicira.com>
---
 net/openvswitch/vport-vxlan.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/openvswitch/vport-vxlan.c b/net/openvswitch/vport-vxlan.c
index a481c03e2861..b0da39469ec8 100644
--- a/net/openvswitch/vport-vxlan.c
+++ b/net/openvswitch/vport-vxlan.c
@@ -29,7 +29,6 @@
 #include <net/ip.h>
 #include <net/udp.h>
 #include <net/ip_tunnels.h>
-#include <net/udp.h>
 #include <net/rtnetlink.h>
 #include <net/route.h>
 #include <net/dsfield.h>
-- 
cgit 


From f0627cfa24389cab25c67bb7ca902912216a8a2d Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 23 Sep 2013 21:56:14 +0800
Subject: openvswitch: remove duplicated include from vport-gre.c

Remove duplicated include.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Jesse Gross <jesse@nicira.com>
---
 net/openvswitch/vport-gre.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/net/openvswitch/vport-gre.c b/net/openvswitch/vport-gre.c
index c99dea543d64..a3d6951602db 100644
--- a/net/openvswitch/vport-gre.c
+++ b/net/openvswitch/vport-gre.c
@@ -24,8 +24,6 @@
 #include <linux/if_tunnel.h>
 #include <linux/if_vlan.h>
 #include <linux/in.h>
-#include <linux/if_vlan.h>
-#include <linux/in.h>
 #include <linux/in_route.h>
 #include <linux/inetdevice.h>
 #include <linux/jhash.h>
-- 
cgit 


From 568ebc5985f5d849814117e40967b5d2e739405c Mon Sep 17 00:00:00 2001
From: Dong Zhu <bluezhudong@gmail.com>
Date: Tue, 17 Sep 2013 15:32:35 +0800
Subject: ptp: add the PTP_SYS_OFFSET ioctl to the testptp program

This patch add a method into testptp.c to measure the time offset
between phc and system clock through the ioctl PTP_SYS_OFFSET.

Signed-off-by: Dong Zhu <bluezhudong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 Documentation/ptp/testptp.c | 65 +++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 63 insertions(+), 2 deletions(-)

diff --git a/Documentation/ptp/testptp.c b/Documentation/ptp/testptp.c
index f59ded066108..a74d0a84d329 100644
--- a/Documentation/ptp/testptp.c
+++ b/Documentation/ptp/testptp.c
@@ -100,6 +100,11 @@ static long ppb_to_scaled_ppm(int ppb)
 	return (long) (ppb * 65.536);
 }
 
+static int64_t pctns(struct ptp_clock_time *t)
+{
+	return t->sec * 1000000000LL + t->nsec;
+}
+
 static void usage(char *progname)
 {
 	fprintf(stderr,
@@ -112,6 +117,8 @@ static void usage(char *progname)
 		" -f val     adjust the ptp clock frequency by 'val' ppb\n"
 		" -g         get the ptp clock time\n"
 		" -h         prints this message\n"
+		" -k val     measure the time offset between system and phc clock\n"
+		"            for 'val' times (Maximum 25)\n"
 		" -p val     enable output with a period of 'val' nanoseconds\n"
 		" -P val     enable or disable (val=1|0) the system clock PPS\n"
 		" -s         set the ptp clock time from the system time\n"
@@ -133,8 +140,12 @@ int main(int argc, char *argv[])
 	struct itimerspec timeout;
 	struct sigevent sigevent;
 
+	struct ptp_clock_time *pct;
+	struct ptp_sys_offset *sysoff;
+
+
 	char *progname;
-	int c, cnt, fd;
+	int i, c, cnt, fd;
 
 	char *device = DEVICE;
 	clockid_t clkid;
@@ -144,14 +155,19 @@ int main(int argc, char *argv[])
 	int extts = 0;
 	int gettime = 0;
 	int oneshot = 0;
+	int pct_offset = 0;
+	int n_samples = 0;
 	int periodic = 0;
 	int perout = -1;
 	int pps = -1;
 	int settime = 0;
 
+	int64_t t1, t2, tp;
+	int64_t interval, offset;
+
 	progname = strrchr(argv[0], '/');
 	progname = progname ? 1+progname : argv[0];
-	while (EOF != (c = getopt(argc, argv, "a:A:cd:e:f:ghp:P:sSt:v"))) {
+	while (EOF != (c = getopt(argc, argv, "a:A:cd:e:f:ghk:p:P:sSt:v"))) {
 		switch (c) {
 		case 'a':
 			oneshot = atoi(optarg);
@@ -174,6 +190,10 @@ int main(int argc, char *argv[])
 		case 'g':
 			gettime = 1;
 			break;
+		case 'k':
+			pct_offset = 1;
+			n_samples = atoi(optarg);
+			break;
 		case 'p':
 			perout = atoi(optarg);
 			break;
@@ -376,6 +396,47 @@ int main(int argc, char *argv[])
 		}
 	}
 
+	if (pct_offset) {
+		if (n_samples <= 0 || n_samples > 25) {
+			puts("n_samples should be between 1 and 25");
+			usage(progname);
+			return -1;
+		}
+
+		sysoff = calloc(1, sizeof(*sysoff));
+		if (!sysoff) {
+			perror("calloc");
+			return -1;
+		}
+		sysoff->n_samples = n_samples;
+
+		if (ioctl(fd, PTP_SYS_OFFSET, sysoff))
+			perror("PTP_SYS_OFFSET");
+		else
+			puts("system and phc clock time offset request okay");
+
+		pct = &sysoff->ts[0];
+		for (i = 0; i < sysoff->n_samples; i++) {
+			t1 = pctns(pct+2*i);
+			tp = pctns(pct+2*i+1);
+			t2 = pctns(pct+2*i+2);
+			interval = t2 - t1;
+			offset = (t2 + t1) / 2 - tp;
+
+			printf("system time: %ld.%ld\n",
+				(pct+2*i)->sec, (pct+2*i)->nsec);
+			printf("phc    time: %ld.%ld\n",
+				(pct+2*i+1)->sec, (pct+2*i+1)->nsec);
+			printf("system time: %ld.%ld\n",
+				(pct+2*i+2)->sec, (pct+2*i+2)->nsec);
+			printf("system/phc clock time offset is %ld ns\n"
+				"system     clock time delay  is %ld ns\n",
+				offset, interval);
+		}
+
+		free(sysoff);
+	}
+
 	close(fd);
 	return 0;
 }
-- 
cgit 


From 5d5a08003d3e678372e375d99c65a24e0d33d2f5 Mon Sep 17 00:00:00 2001
From: Kirill Tkhai <tkhai@yandex.ru>
Date: Sun, 15 Sep 2013 17:29:17 +0400
Subject: rcu: Fix CONFIG_RCU_NOCB_CPU_ALL panic on machines with sparse CPU
 mask

Some architectures have sparse cpu mask. UltraSparc's cpuinfo for example:

CPU0: online
CPU2: online

So, set only possible CPUs when CONFIG_RCU_NOCB_CPU_ALL is enabled.

Also, check that user passes right 'rcu_nocbs=' option.

Signed-off-by: Kirill Tkhai <tkhai@yandex.ru>
CC: Dipankar Sarma <dipankar@in.ibm.com>
[ paulmck: Fix pr_info() issue noted by scripts/checkpatch.pl. ]
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
 kernel/rcutree_plugin.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index c684f7ab37fa..1855d66bf705 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -96,10 +96,15 @@ static void __init rcu_bootup_announce_oddness(void)
 #endif /* #ifdef CONFIG_RCU_NOCB_CPU_ZERO */
 #ifdef CONFIG_RCU_NOCB_CPU_ALL
 	pr_info("\tOffload RCU callbacks from all CPUs\n");
-	cpumask_setall(rcu_nocb_mask);
+	cpumask_copy(rcu_nocb_mask, cpu_possible_mask);
 #endif /* #ifdef CONFIG_RCU_NOCB_CPU_ALL */
 #endif /* #ifndef CONFIG_RCU_NOCB_CPU_NONE */
 	if (have_rcu_nocb_mask) {
+		if (!cpumask_subset(rcu_nocb_mask, cpu_possible_mask)) {
+			pr_info("\tNote: kernel parameter 'rcu_nocbs=' contains nonexistent CPUs.\n");
+			cpumask_and(rcu_nocb_mask, cpu_possible_mask,
+				    rcu_nocb_mask);
+		}
 		cpulist_scnprintf(nocb_buf, sizeof(nocb_buf), rcu_nocb_mask);
 		pr_info("\tOffload RCU callbacks from CPUs: %s.\n", nocb_buf);
 		if (rcu_nocb_poll)
-- 
cgit 


From c0f4375146a738bae23e48fa8b5383abf02177cb Mon Sep 17 00:00:00 2001
From: Dave Martin <dave.martin@linaro.org>
Date: Mon, 10 Dec 2012 17:19:57 +0000
Subject: ARM: bL_switcher: Add synchronous enable/disable interface

Some subsystems will need to know for sure whether the switcher is
enabled or disabled during certain critical regions.

This patch provides a simple mutex-based mechanism to discover
whether the switcher is enabled and temporarily lock out further
enable/disable:

  * bL_switcher_get_enabled() returns true iff the switcher is
    enabled and temporarily inhibits enable/disable.

  * bL_switcher_put_enabled() permits enable/disable of the switcher
    again after a previous call to bL_switcher_get_enabled().

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
 arch/arm/common/bL_switcher.c      | 27 +++++++++++++++++++++++++--
 arch/arm/include/asm/bL_switcher.h |  3 +++
 2 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index 335ff76d4c5a..7d98629aa446 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -23,6 +23,7 @@
 #include <linux/hrtimer.h>
 #include <linux/tick.h>
 #include <linux/mm.h>
+#include <linux/mutex.h>
 #include <linux/string.h>
 #include <linux/sysfs.h>
 #include <linux/irqchip/arm-gic.h>
@@ -302,6 +303,7 @@ EXPORT_SYMBOL_GPL(bL_switch_request);
  * Activation and configuration code.
  */
 
+static DEFINE_MUTEX(bL_switcher_activation_lock);
 static unsigned int bL_switcher_active;
 static unsigned int bL_switcher_cpu_original_cluster[NR_CPUS];
 static cpumask_t bL_switcher_removed_logical_cpus;
@@ -413,9 +415,11 @@ static int bL_switcher_enable(void)
 {
 	int cpu, ret;
 
+	mutex_lock(&bL_switcher_activation_lock);
 	cpu_hotplug_driver_lock();
 	if (bL_switcher_active) {
 		cpu_hotplug_driver_unlock();
+		mutex_unlock(&bL_switcher_activation_lock);
 		return 0;
 	}
 
@@ -424,6 +428,7 @@ static int bL_switcher_enable(void)
 	ret = bL_switcher_halve_cpus();
 	if (ret) {
 		cpu_hotplug_driver_unlock();
+		mutex_unlock(&bL_switcher_activation_lock);
 		return ret;
 	}
 
@@ -436,9 +441,10 @@ static int bL_switcher_enable(void)
 	}
 
 	bL_switcher_active = 1;
-	cpu_hotplug_driver_unlock();
-
 	pr_info("big.LITTLE switcher initialized\n");
+
+	cpu_hotplug_driver_unlock();
+	mutex_unlock(&bL_switcher_activation_lock);
 	return 0;
 }
 
@@ -450,9 +456,11 @@ static void bL_switcher_disable(void)
 	struct bL_thread *t;
 	struct task_struct *task;
 
+	mutex_lock(&bL_switcher_activation_lock);
 	cpu_hotplug_driver_lock();
 	if (!bL_switcher_active) {
 		cpu_hotplug_driver_unlock();
+		mutex_unlock(&bL_switcher_activation_lock);
 		return;
 	}
 	bL_switcher_active = 0;
@@ -497,6 +505,7 @@ static void bL_switcher_disable(void)
 
 	bL_switcher_restore_cpus();
 	cpu_hotplug_driver_unlock();
+	mutex_unlock(&bL_switcher_activation_lock);
 }
 
 static ssize_t bL_switcher_active_show(struct kobject *kobj,
@@ -554,6 +563,20 @@ static int __init bL_switcher_sysfs_init(void)
 
 #endif  /* CONFIG_SYSFS */
 
+bool bL_switcher_get_enabled(void)
+{
+	mutex_lock(&bL_switcher_activation_lock);
+
+	return bL_switcher_active;
+}
+EXPORT_SYMBOL_GPL(bL_switcher_get_enabled);
+
+void bL_switcher_put_enabled(void)
+{
+	mutex_unlock(&bL_switcher_activation_lock);
+}
+EXPORT_SYMBOL_GPL(bL_switcher_put_enabled);
+
 /*
  * Veto any CPU hotplug operation on those CPUs we've removed
  * while the switcher is active.
diff --git a/arch/arm/include/asm/bL_switcher.h b/arch/arm/include/asm/bL_switcher.h
index e0c0bba70bbf..05d7c4cb9473 100644
--- a/arch/arm/include/asm/bL_switcher.h
+++ b/arch/arm/include/asm/bL_switcher.h
@@ -14,4 +14,7 @@
 
 int bL_switch_request(unsigned int cpu, unsigned int new_cluster_id);
 
+bool bL_switcher_get_enabled(void);
+void bL_switcher_put_enabled(void);
+
 #endif
-- 
cgit 


From 491990e29f5d285a1b75e74785e3160716b79040 Mon Sep 17 00:00:00 2001
From: Dave Martin <dave.martin@linaro.org>
Date: Mon, 10 Dec 2012 17:19:58 +0000
Subject: ARM: bL_switcher: Add runtime control notifier

Some subsystems will need to respond synchronously to runtime
enabling and disabling of the switcher.

This patch adds a dedicated notifier interface to support such
subsystems.  Pre- and post- enable/disable notifications are sent
to registered callbacks, allowing safe transition of non-b.L-
transparent subsystems across these control transitions.

Notifier callbacks may veto switcher (de)activation on pre notifications
only.  Post notifications won't revert the action.

If enabling or disabling of the switcher fails after the pre-change
notification has been sent, subsystems which have registered
notifiers can be left in an inappropriate state.

This patch sends a suitable post-change notification on failure,
indicating that the old state has been reestablished.

For example, a failed initialisation will result in the following
sequence:

    BL_NOTIFY_PRE_ENABLE
    /* switcher initialisation fails */
    BL_NOTIFY_POST_DISABLE

It is the responsibility of notified subsystems to respond in an
appropriate way.

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
 arch/arm/common/bL_switcher.c      | 60 +++++++++++++++++++++++++++++++-------
 arch/arm/include/asm/bL_switcher.h | 44 ++++++++++++++++++++++++++++
 2 files changed, 94 insertions(+), 10 deletions(-)

diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index 7d98629aa446..016488730cb7 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -22,6 +22,7 @@
 #include <linux/clockchips.h>
 #include <linux/hrtimer.h>
 #include <linux/tick.h>
+#include <linux/notifier.h>
 #include <linux/mm.h>
 #include <linux/mutex.h>
 #include <linux/string.h>
@@ -304,10 +305,34 @@ EXPORT_SYMBOL_GPL(bL_switch_request);
  */
 
 static DEFINE_MUTEX(bL_switcher_activation_lock);
+static BLOCKING_NOTIFIER_HEAD(bL_activation_notifier);
 static unsigned int bL_switcher_active;
 static unsigned int bL_switcher_cpu_original_cluster[NR_CPUS];
 static cpumask_t bL_switcher_removed_logical_cpus;
 
+int bL_switcher_register_notifier(struct notifier_block *nb)
+{
+	return blocking_notifier_chain_register(&bL_activation_notifier, nb);
+}
+EXPORT_SYMBOL_GPL(bL_switcher_register_notifier);
+
+int bL_switcher_unregister_notifier(struct notifier_block *nb)
+{
+	return blocking_notifier_chain_unregister(&bL_activation_notifier, nb);
+}
+EXPORT_SYMBOL_GPL(bL_switcher_unregister_notifier);
+
+static int bL_activation_notify(unsigned long val)
+{
+	int ret;
+
+	ret = blocking_notifier_call_chain(&bL_activation_notifier, val, NULL);
+	if (ret & NOTIFY_STOP_MASK)
+		pr_err("%s: notifier chain failed with status 0x%x\n",
+			__func__, ret);
+	return notifier_to_errno(ret);
+}
+
 static void bL_switcher_restore_cpus(void)
 {
 	int i;
@@ -425,12 +450,13 @@ static int bL_switcher_enable(void)
 
 	pr_info("big.LITTLE switcher initializing\n");
 
+	ret = bL_activation_notify(BL_NOTIFY_PRE_ENABLE);
+	if (ret)
+		goto error;
+
 	ret = bL_switcher_halve_cpus();
-	if (ret) {
-		cpu_hotplug_driver_unlock();
-		mutex_unlock(&bL_switcher_activation_lock);
-		return ret;
-	}
+	if (ret)
+		goto error;
 
 	for_each_online_cpu(cpu) {
 		struct bL_thread *t = &bL_threads[cpu];
@@ -441,11 +467,18 @@ static int bL_switcher_enable(void)
 	}
 
 	bL_switcher_active = 1;
+	bL_activation_notify(BL_NOTIFY_POST_ENABLE);
 	pr_info("big.LITTLE switcher initialized\n");
+	goto out;
+
+error:
+	pr_warn("big.LITTLE switcher initialization failed\n");
+	bL_activation_notify(BL_NOTIFY_POST_DISABLE);
 
+out:
 	cpu_hotplug_driver_unlock();
 	mutex_unlock(&bL_switcher_activation_lock);
-	return 0;
+	return ret;
 }
 
 #ifdef CONFIG_SYSFS
@@ -458,11 +491,15 @@ static void bL_switcher_disable(void)
 
 	mutex_lock(&bL_switcher_activation_lock);
 	cpu_hotplug_driver_lock();
-	if (!bL_switcher_active) {
-		cpu_hotplug_driver_unlock();
-		mutex_unlock(&bL_switcher_activation_lock);
-		return;
+
+	if (!bL_switcher_active)
+		goto out;
+
+	if (bL_activation_notify(BL_NOTIFY_PRE_DISABLE) != 0) {
+		bL_activation_notify(BL_NOTIFY_POST_ENABLE);
+		goto out;
 	}
+
 	bL_switcher_active = 0;
 
 	/*
@@ -504,6 +541,9 @@ static void bL_switcher_disable(void)
 	}
 
 	bL_switcher_restore_cpus();
+	bL_activation_notify(BL_NOTIFY_POST_DISABLE);
+
+out:
 	cpu_hotplug_driver_unlock();
 	mutex_unlock(&bL_switcher_activation_lock);
 }
diff --git a/arch/arm/include/asm/bL_switcher.h b/arch/arm/include/asm/bL_switcher.h
index 05d7c4cb9473..b243ca93e8e9 100644
--- a/arch/arm/include/asm/bL_switcher.h
+++ b/arch/arm/include/asm/bL_switcher.h
@@ -12,9 +12,53 @@
 #ifndef ASM_BL_SWITCHER_H
 #define ASM_BL_SWITCHER_H
 
+#include <linux/compiler.h>
+#include <linux/types.h>
+
 int bL_switch_request(unsigned int cpu, unsigned int new_cluster_id);
 
+/*
+ * Register here to be notified about runtime enabling/disabling of
+ * the switcher.
+ *
+ * The notifier chain is called with the switcher activation lock held:
+ * the switcher will not be enabled or disabled during callbacks.
+ * Callbacks must not call bL_switcher_{get,put}_enabled().
+ */
+#define BL_NOTIFY_PRE_ENABLE	0
+#define BL_NOTIFY_POST_ENABLE	1
+#define BL_NOTIFY_PRE_DISABLE	2
+#define BL_NOTIFY_POST_DISABLE	3
+
+#ifdef CONFIG_BL_SWITCHER
+
+int bL_switcher_register_notifier(struct notifier_block *nb);
+int bL_switcher_unregister_notifier(struct notifier_block *nb);
+
+/*
+ * Use these functions to temporarily prevent enabling/disabling of
+ * the switcher.
+ * bL_switcher_get_enabled() returns true if the switcher is currently
+ * enabled.  Each call to bL_switcher_get_enabled() must be followed
+ * by a call to bL_switcher_put_enabled().  These functions are not
+ * recursive.
+ */
 bool bL_switcher_get_enabled(void);
 void bL_switcher_put_enabled(void);
 
+#else
+static inline int bL_switcher_register_notifier(struct notifier_block *nb)
+{
+	return 0;
+}
+
+static inline int bL_switcher_unregister_notifier(struct notifier_block *nb)
+{
+	return 0;
+}
+
+static inline bool bL_switcher_get_enabled(void) { return false; }
+static inline void bL_switcher_put_enabled(void) { }
+#endif /* CONFIG_BL_SWITCHER */
+
 #endif
-- 
cgit 


From 0577fee283fb385afbcdb78d1f4c398d7326b68f Mon Sep 17 00:00:00 2001
From: Dave Martin <dave.martin@linaro.org>
Date: Wed, 22 May 2013 19:08:16 +0100
Subject: ARM: bL_switcher: Add switch completion callback for
 bL_switch_request()

There is no explicit way to know when a switch started via
bL_switch_request() is complete.  This can lead to unpredictable
behaviour when the switcher is controlled by a subsystem which
makes dynamic decisions (such as cpufreq).

The CPU PM notifier is not really suitable for signalling
completion, because the CPU could get suspended and resumed for
other, independent reasons while a switch request is in flight.
Adding a whole new notifier for this seems excessive, and may tempt
people to put heavyweight code on this path.

This patch implements a new bL_switch_request_cb() function that
allows for a per-request lightweight callback, private between the
switcher and the caller of bL_switch_request_cb().

Overlapping switches on a single CPU are considered incorrect if
they are requested via bL_switch_request_cb() with a callback (they
will lead to an unpredictable final state without explicit external
synchronisation to force the requests into a particular order).
Queuing requests robustly would be overkill because only one
subsystem should be attempting to control the switcher at any time.

Overlapping requests of this kind will be failed with -EBUSY to
indicate that the second request won't take effect and the
completer will never be called for it.

bL_switch_request() is retained as a wrapper round the new function,
with the old, fire-and-forget semantics.  In this case the last request
will always win. The request may still be denied if a previous request
with a completer is still pending.

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
---
 arch/arm/common/bL_switcher.c      | 53 ++++++++++++++++++++++++++++++++++----
 arch/arm/include/asm/bL_switcher.h | 10 ++++++-
 2 files changed, 57 insertions(+), 6 deletions(-)

diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index 016488730cb7..34316be404d5 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -9,6 +9,7 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/atomic.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
@@ -25,6 +26,7 @@
 #include <linux/notifier.h>
 #include <linux/mm.h>
 #include <linux/mutex.h>
+#include <linux/spinlock.h>
 #include <linux/string.h>
 #include <linux/sysfs.h>
 #include <linux/irqchip/arm-gic.h>
@@ -224,10 +226,13 @@ static int bL_switch_to(unsigned int new_cluster_id)
 }
 
 struct bL_thread {
+	spinlock_t lock;
 	struct task_struct *task;
 	wait_queue_head_t wq;
 	int wanted_cluster;
 	struct completion started;
+	bL_switch_completion_handler completer;
+	void *completer_cookie;
 };
 
 static struct bL_thread bL_threads[NR_CPUS];
@@ -237,6 +242,8 @@ static int bL_switcher_thread(void *arg)
 	struct bL_thread *t = arg;
 	struct sched_param param = { .sched_priority = 1 };
 	int cluster;
+	bL_switch_completion_handler completer;
+	void *completer_cookie;
 
 	sched_setscheduler_nocheck(current, SCHED_FIFO, &param);
 	complete(&t->started);
@@ -247,9 +254,21 @@ static int bL_switcher_thread(void *arg)
 		wait_event_interruptible(t->wq,
 				t->wanted_cluster != -1 ||
 				kthread_should_stop());
-		cluster = xchg(&t->wanted_cluster, -1);
-		if (cluster != -1)
+
+		spin_lock(&t->lock);
+		cluster = t->wanted_cluster;
+		completer = t->completer;
+		completer_cookie = t->completer_cookie;
+		t->wanted_cluster = -1;
+		t->completer = NULL;
+		spin_unlock(&t->lock);
+
+		if (cluster != -1) {
 			bL_switch_to(cluster);
+
+			if (completer)
+				completer(completer_cookie);
+		}
 	} while (!kthread_should_stop());
 
 	return 0;
@@ -270,16 +289,30 @@ static struct task_struct *bL_switcher_thread_create(int cpu, void *arg)
 }
 
 /*
- * bL_switch_request - Switch to a specific cluster for the given CPU
+ * bL_switch_request_cb - Switch to a specific cluster for the given CPU,
+ *      with completion notification via a callback
  *
  * @cpu: the CPU to switch
  * @new_cluster_id: the ID of the cluster to switch to.
+ * @completer: switch completion callback.  if non-NULL,
+ *	@completer(@completer_cookie) will be called on completion of
+ *	the switch, in non-atomic context.
+ * @completer_cookie: opaque context argument for @completer.
  *
  * This function causes a cluster switch on the given CPU by waking up
  * the appropriate switcher thread.  This function may or may not return
  * before the switch has occurred.
+ *
+ * If a @completer callback function is supplied, it will be called when
+ * the switch is complete.  This can be used to determine asynchronously
+ * when the switch is complete, regardless of when bL_switch_request()
+ * returns.  When @completer is supplied, no new switch request is permitted
+ * for the affected CPU until after the switch is complete, and @completer
+ * has returned.
  */
-int bL_switch_request(unsigned int cpu, unsigned int new_cluster_id)
+int bL_switch_request_cb(unsigned int cpu, unsigned int new_cluster_id,
+			 bL_switch_completion_handler completer,
+			 void *completer_cookie)
 {
 	struct bL_thread *t;
 
@@ -289,16 +322,25 @@ int bL_switch_request(unsigned int cpu, unsigned int new_cluster_id)
 	}
 
 	t = &bL_threads[cpu];
+
 	if (IS_ERR(t->task))
 		return PTR_ERR(t->task);
 	if (!t->task)
 		return -ESRCH;
 
+	spin_lock(&t->lock);
+	if (t->completer) {
+		spin_unlock(&t->lock);
+		return -EBUSY;
+	}
+	t->completer = completer;
+	t->completer_cookie = completer_cookie;
 	t->wanted_cluster = new_cluster_id;
+	spin_unlock(&t->lock);
 	wake_up(&t->wq);
 	return 0;
 }
-EXPORT_SYMBOL_GPL(bL_switch_request);
+EXPORT_SYMBOL_GPL(bL_switch_request_cb);
 
 /*
  * Activation and configuration code.
@@ -460,6 +502,7 @@ static int bL_switcher_enable(void)
 
 	for_each_online_cpu(cpu) {
 		struct bL_thread *t = &bL_threads[cpu];
+		spin_lock_init(&t->lock);
 		init_waitqueue_head(&t->wq);
 		init_completion(&t->started);
 		t->wanted_cluster = -1;
diff --git a/arch/arm/include/asm/bL_switcher.h b/arch/arm/include/asm/bL_switcher.h
index b243ca93e8e9..7d1cce8b8a0d 100644
--- a/arch/arm/include/asm/bL_switcher.h
+++ b/arch/arm/include/asm/bL_switcher.h
@@ -15,7 +15,15 @@
 #include <linux/compiler.h>
 #include <linux/types.h>
 
-int bL_switch_request(unsigned int cpu, unsigned int new_cluster_id);
+typedef void (*bL_switch_completion_handler)(void *cookie);
+
+int bL_switch_request_cb(unsigned int cpu, unsigned int new_cluster_id,
+			 bL_switch_completion_handler completer,
+			 void *completer_cookie);
+static inline int bL_switch_request(unsigned int cpu, unsigned int new_cluster_id)
+{
+	return bL_switch_request_cb(cpu, new_cluster_id, NULL, NULL);
+}
 
 /*
  * Register here to be notified about runtime enabling/disabling of
-- 
cgit 


From 108a9640abfada2599b6cb08c7cc00a4eebf8f8f Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Tue, 23 Oct 2012 01:39:08 -0400
Subject: ARM: bL_switcher: synchronize the outbound with the inbound

Let's wait for the inbound CPU to come up and snoop some of the outbound
CPU cache before bringing the outbound CPU down.  That should be more
efficient than going down right away.

Possible improvements might involve some monitoring of the CCI event
counters.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
 arch/arm/common/bL_switcher.c | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index 34316be404d5..aab7c1274885 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -55,9 +55,10 @@ static int read_mpidr(void)
  * bL switcher core code.
  */
 
-static void bL_do_switch(void *_unused)
+static void bL_do_switch(void *_arg)
 {
 	unsigned ib_mpidr, ib_cpu, ib_cluster;
+	long volatile handshake, **handshake_ptr = _arg;
 
 	pr_debug("%s\n", __func__);
 
@@ -65,6 +66,13 @@ static void bL_do_switch(void *_unused)
 	ib_cpu = MPIDR_AFFINITY_LEVEL(ib_mpidr, 0);
 	ib_cluster = MPIDR_AFFINITY_LEVEL(ib_mpidr, 1);
 
+	/* Advertise our handshake location */
+	if (handshake_ptr) {
+		handshake = 0;
+		*handshake_ptr = &handshake;
+	} else
+		handshake = -1;
+
 	/*
 	 * Our state has been saved at this point.  Let's release our
 	 * inbound CPU.
@@ -83,6 +91,14 @@ static void bL_do_switch(void *_unused)
 	 * we have none.
 	 */
 
+	/*
+	 * Let's wait until our inbound is alive.
+	 */
+	while (!handshake) {
+		wfe();
+		smp_mb();
+	}
+
 	/* Let's put ourself down. */
 	mcpm_cpu_power_down();
 
@@ -130,6 +146,7 @@ static int bL_switch_to(unsigned int new_cluster_id)
 	unsigned int ob_mpidr, ob_cpu, ob_cluster, ib_mpidr, ib_cpu, ib_cluster;
 	struct tick_device *tdev;
 	enum clock_event_mode tdev_mode;
+	long volatile *handshake_ptr;
 	int ret;
 
 	this_cpu = smp_processor_id();
@@ -198,7 +215,7 @@ static int bL_switch_to(unsigned int new_cluster_id)
 	cpu_logical_map(that_cpu) = ob_mpidr;
 
 	/* Let's do the actual CPU switch. */
-	ret = cpu_suspend(0, bL_switchpoint);
+	ret = cpu_suspend((unsigned long)&handshake_ptr, bL_switchpoint);
 	if (ret > 0)
 		panic("%s: cpu_suspend() returned %d\n", __func__, ret);
 
@@ -220,6 +237,9 @@ static int bL_switch_to(unsigned int new_cluster_id)
 	local_fiq_enable();
 	local_irq_enable();
 
+	*handshake_ptr = 1;
+	dsb_sev();
+
 	if (ret)
 		pr_err("%s exiting with error %d\n", __func__, ret);
 	return ret;
-- 
cgit 


From 5135d875e1457ef946a055003d8f80713e862135 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Tue, 27 Nov 2012 21:54:41 -0500
Subject: ARM: SMP: basic IPI triggered completion support

We need a mechanism to let an inbound CPU signal that it is alive before
even getting into the kernel environment i.e. from early assembly code.
Using an IPI is the simplest way to achieve that.

This adds some basic infrastructure to register a struct completion
pointer to be "completed" when the dedicated IPI for this task is
received.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
 arch/arm/include/asm/hardirq.h |  2 +-
 arch/arm/include/asm/smp.h     |  2 ++
 arch/arm/kernel/smp.c          | 21 +++++++++++++++++++++
 3 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/hardirq.h b/arch/arm/include/asm/hardirq.h
index 2740c2a2df63..3d7351c844aa 100644
--- a/arch/arm/include/asm/hardirq.h
+++ b/arch/arm/include/asm/hardirq.h
@@ -5,7 +5,7 @@
 #include <linux/threads.h>
 #include <asm/irq.h>
 
-#define NR_IPI	6
+#define NR_IPI	7
 
 typedef struct {
 	unsigned int __softirq_pending;
diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h
index a8cae71caceb..22a3b9b5d4a1 100644
--- a/arch/arm/include/asm/smp.h
+++ b/arch/arm/include/asm/smp.h
@@ -84,6 +84,8 @@ extern void arch_send_call_function_single_ipi(int cpu);
 extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
 extern void arch_send_wakeup_ipi_mask(const struct cpumask *mask);
 
+extern int register_ipi_completion(struct completion *completion, int cpu);
+
 struct smp_operations {
 #ifdef CONFIG_SMP
 	/*
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 72024ea8a3a6..7d80a549cae5 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -66,6 +66,7 @@ enum ipi_msg_type {
 	IPI_CALL_FUNC,
 	IPI_CALL_FUNC_SINGLE,
 	IPI_CPU_STOP,
+	IPI_COMPLETION,
 };
 
 static DECLARE_COMPLETION(cpu_running);
@@ -456,6 +457,7 @@ static const char *ipi_types[NR_IPI] = {
 	S(IPI_CALL_FUNC, "Function call interrupts"),
 	S(IPI_CALL_FUNC_SINGLE, "Single function call interrupts"),
 	S(IPI_CPU_STOP, "CPU stop interrupts"),
+	S(IPI_COMPLETION, "completion interrupts"),
 };
 
 void show_ipi_list(struct seq_file *p, int prec)
@@ -515,6 +517,19 @@ static void ipi_cpu_stop(unsigned int cpu)
 		cpu_relax();
 }
 
+static DEFINE_PER_CPU(struct completion *, cpu_completion);
+
+int register_ipi_completion(struct completion *completion, int cpu)
+{
+	per_cpu(cpu_completion, cpu) = completion;
+	return IPI_COMPLETION;
+}
+
+static void ipi_complete(unsigned int cpu)
+{
+	complete(per_cpu(cpu_completion, cpu));
+}
+
 /*
  * Main handler for inter-processor interrupts
  */
@@ -565,6 +580,12 @@ void handle_IPI(int ipinr, struct pt_regs *regs)
 		irq_exit();
 		break;
 
+	case IPI_COMPLETION:
+		irq_enter();
+		ipi_complete(cpu);
+		irq_exit();
+		break;
+
 	default:
 		printk(KERN_CRIT "CPU%u: Unknown IPI message 0x%x\n",
 		       cpu, ipinr);
-- 
cgit 


From de885d147ad2c4a66777e3557440247efde1cc8d Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Tue, 27 Nov 2012 23:11:20 -0500
Subject: ARM: mcpm: add a simple poke mechanism to the early entry code

This allows to poke a predetermined value into a specific address
upon entering the early boot code in bL_head.S.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
 arch/arm/common/mcpm_entry.c | 12 ++++++++++++
 arch/arm/common/mcpm_head.S  | 16 ++++++++++++++--
 arch/arm/include/asm/mcpm.h  |  8 ++++++++
 3 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/arch/arm/common/mcpm_entry.c b/arch/arm/common/mcpm_entry.c
index 370236dd1a03..4a2b32fd53a1 100644
--- a/arch/arm/common/mcpm_entry.c
+++ b/arch/arm/common/mcpm_entry.c
@@ -27,6 +27,18 @@ void mcpm_set_entry_vector(unsigned cpu, unsigned cluster, void *ptr)
 	sync_cache_w(&mcpm_entry_vectors[cluster][cpu]);
 }
 
+extern unsigned long mcpm_entry_early_pokes[MAX_NR_CLUSTERS][MAX_CPUS_PER_CLUSTER][2];
+
+void mcpm_set_early_poke(unsigned cpu, unsigned cluster,
+			 unsigned long poke_phys_addr, unsigned long poke_val)
+{
+	unsigned long *poke = &mcpm_entry_early_pokes[cluster][cpu][0];
+	poke[0] = poke_phys_addr;
+	poke[1] = poke_val;
+	__cpuc_flush_dcache_area((void *)poke, 8);
+	outer_clean_range(__pa(poke), __pa(poke + 2));
+}
+
 static const struct mcpm_platform_ops *platform_ops;
 
 int __init mcpm_platform_register(const struct mcpm_platform_ops *ops)
diff --git a/arch/arm/common/mcpm_head.S b/arch/arm/common/mcpm_head.S
index 39c96df3477a..49dd5352fe70 100644
--- a/arch/arm/common/mcpm_head.S
+++ b/arch/arm/common/mcpm_head.S
@@ -71,12 +71,19 @@ ENTRY(mcpm_entry_point)
 	 * position independent way.
 	 */
 	adr	r5, 3f
-	ldmia	r5, {r6, r7, r8, r11}
+	ldmia	r5, {r0, r6, r7, r8, r11}
+	add	r0, r5, r0			@ r0 = mcpm_entry_early_pokes
 	add	r6, r5, r6			@ r6 = mcpm_entry_vectors
 	ldr	r7, [r5, r7]			@ r7 = mcpm_power_up_setup_phys
 	add	r8, r5, r8			@ r8 = mcpm_sync
 	add	r11, r5, r11			@ r11 = first_man_locks
 
+	@ Perform an early poke, if any
+	add	r0, r0, r4, lsl #3
+	ldmia	r0, {r0, r1}
+	teq	r0, #0
+	strne	r1, [r0]
+
 	mov	r0, #MCPM_SYNC_CLUSTER_SIZE
 	mla	r8, r0, r10, r8			@ r8 = sync cluster base
 
@@ -195,7 +202,8 @@ mcpm_entry_gated:
 
 	.align	2
 
-3:	.word	mcpm_entry_vectors - .
+3:	.word	mcpm_entry_early_pokes - .
+	.word	mcpm_entry_vectors - 3b
 	.word	mcpm_power_up_setup_phys - 3b
 	.word	mcpm_sync - 3b
 	.word	first_man_locks - 3b
@@ -214,6 +222,10 @@ first_man_locks:
 ENTRY(mcpm_entry_vectors)
 	.space	4 * MAX_NR_CLUSTERS * MAX_CPUS_PER_CLUSTER
 
+	.type	mcpm_entry_early_pokes, #object
+ENTRY(mcpm_entry_early_pokes)
+	.space	8 * MAX_NR_CLUSTERS * MAX_CPUS_PER_CLUSTER
+
 	.type	mcpm_power_up_setup_phys, #object
 ENTRY(mcpm_power_up_setup_phys)
 	.space  4		@ set by mcpm_sync_init()
diff --git a/arch/arm/include/asm/mcpm.h b/arch/arm/include/asm/mcpm.h
index 0f7b7620e9a5..7626a7fd4938 100644
--- a/arch/arm/include/asm/mcpm.h
+++ b/arch/arm/include/asm/mcpm.h
@@ -41,6 +41,14 @@ extern void mcpm_entry_point(void);
  */
 void mcpm_set_entry_vector(unsigned cpu, unsigned cluster, void *ptr);
 
+/*
+ * This sets an early poke i.e a value to be poked into some address
+ * from very early assembly code before the CPU is ungated.  The
+ * address must be physical, and if 0 then nothing will happen.
+ */
+void mcpm_set_early_poke(unsigned cpu, unsigned cluster,
+			 unsigned long poke_phys_addr, unsigned long poke_val);
+
 /*
  * CPU/cluster power operations API for higher subsystems to use.
  */
-- 
cgit 


From eeb446581ba23a5a36b4f5c7bfa2b1f8f7c9fb66 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Wed, 28 Nov 2012 18:17:25 -0500
Subject: ARM: GIC: function to retrieve the physical address of the SGIR

In order to have early assembly code signal other CPUs in the system,
we need to get the physical address for the SGIR register used to
send IPIs.  Because the register will be used with a precomputed CPU
interface ID number, there is no need for any locking in the assembly
code where this register is written to.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
 drivers/irqchip/irq-gic.c       | 29 +++++++++++++++++++++++++++++
 include/linux/irqchip/arm-gic.h |  1 +
 2 files changed, 30 insertions(+)

diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 6365b59181ee..09fdf3d574cd 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -769,6 +769,33 @@ void gic_migrate_target(unsigned int new_cpu_id)
 		}
 	}
 }
+
+/*
+ * gic_get_sgir_physaddr - get the physical address for the SGI register
+ *
+ * REturn the physical address of the SGI register to be used
+ * by some early assembly code when the kernel is not yet available.
+ */
+static unsigned long gic_dist_physaddr;
+
+unsigned long gic_get_sgir_physaddr(void)
+{
+	if (!gic_dist_physaddr)
+		return 0;
+	return gic_dist_physaddr + GIC_DIST_SOFTINT;
+}
+
+void __init gic_init_physaddr(struct device_node *node)
+{
+	struct resource res;
+	if (of_address_to_resource(node, 0, &res) == 0) {
+		gic_dist_physaddr = res.start;
+		pr_info("GIC physical location is %#lx\n", gic_dist_physaddr);
+	}
+}
+
+#else
+#define gic_init_physaddr(node)  do { } while (0)
 #endif
 
 static int gic_irq_domain_map(struct irq_domain *d, unsigned int irq,
@@ -952,6 +979,8 @@ int __init gic_of_init(struct device_node *node, struct device_node *parent)
 		percpu_offset = 0;
 
 	gic_init_bases(gic_cnt, -1, dist_base, cpu_base, percpu_offset, node);
+	if (!gic_cnt)
+		gic_init_physaddr(node);
 
 	if (parent) {
 		irq = irq_of_parse_and_map(node, 0);
diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
index 46544e381bf9..dc30835099e3 100644
--- a/include/linux/irqchip/arm-gic.h
+++ b/include/linux/irqchip/arm-gic.h
@@ -78,6 +78,7 @@ static inline void gic_init(unsigned int nr, int start,
 
 int gic_get_cpu_id(unsigned int cpu);
 void gic_migrate_target(unsigned int new_cpu_id);
+unsigned long gic_get_sgir_physaddr(void);
 
 #endif /* __ASSEMBLY */
 
-- 
cgit 


From 14d2ca615a85e2dbc744c12c296affd35f119fa7 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Wed, 28 Nov 2012 18:48:19 -0500
Subject: ARM: GIC: interface to send a SGI directly

The regular gic_raise_softirq() takes as input a CPU mask which is not
adequate when we need to send an IPI to a CPU which is not represented
in the kernel to GIC mapping.  That is the case with the b.L switcher
when GIC migration to the inbound CPU has not yet occurred.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
 drivers/irqchip/irq-gic.c       | 14 ++++++++++++++
 include/linux/irqchip/arm-gic.h |  1 +
 2 files changed, 15 insertions(+)

diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index 09fdf3d574cd..9031171c141b 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -673,6 +673,20 @@ void gic_raise_softirq(const struct cpumask *mask, unsigned int irq)
 #endif
 
 #ifdef CONFIG_BL_SWITCHER
+/*
+ * gic_send_sgi - send a SGI directly to given CPU interface number
+ *
+ * cpu_id: the ID for the destination CPU interface
+ * irq: the IPI number to send a SGI for
+ */
+void gic_send_sgi(unsigned int cpu_id, unsigned int irq)
+{
+	BUG_ON(cpu_id >= NR_GIC_CPU_IF);
+	cpu_id = 1 << cpu_id;
+	/* this always happens on GIC0 */
+	writel_relaxed((cpu_id << 16) | irq, gic_data_dist_base(&gic_data[0]) + GIC_DIST_SOFTINT);
+}
+
 /*
  * gic_get_cpu_id - get the CPU interface ID for the specified CPU
  *
diff --git a/include/linux/irqchip/arm-gic.h b/include/linux/irqchip/arm-gic.h
index dc30835099e3..cac496b1e279 100644
--- a/include/linux/irqchip/arm-gic.h
+++ b/include/linux/irqchip/arm-gic.h
@@ -76,6 +76,7 @@ static inline void gic_init(unsigned int nr, int start,
 	gic_init_bases(nr, start, dist, cpu, 0, NULL);
 }
 
+void gic_send_sgi(unsigned int cpu_id, unsigned int irq);
 int gic_get_cpu_id(unsigned int cpu);
 void gic_migrate_target(unsigned int new_cpu_id);
 unsigned long gic_get_sgir_physaddr(void);
-- 
cgit 


From 6137eba6c2b9bc2b7fd52e77741f50e43db4b5a6 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Thu, 13 Jun 2013 23:51:18 -0400
Subject: ARM: bL_switcher: wait until inbound is alive before performing a
 switch

In some cases, a significant delay may be observed between the moment
a request for a CPU to come up is made and the moment it is ready to
start executing kernel code.  This is especially true when a whole
cluster has to be powered up which may take in the order of miliseconds.
It is therefore a good idea to let the outbound CPU continue to execute
code in the mean time, and be notified when the inbound is ready before
performing the actual switch.

This is achieved by registering a completion block with the appropriate
IPI callback, and programming the sending of an IPI by the early assembly
code prior to entering the main kernel code.  Once the IPI is delivered
to the outbound CPU, the completion block is "completed" and the switcher
thread is resumed.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
 arch/arm/common/bL_switcher.c | 30 +++++++++++++++++++++++-------
 1 file changed, 23 insertions(+), 7 deletions(-)

diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index aab7c1274885..dc53eb8dcc81 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -144,10 +144,11 @@ static int bL_switch_to(unsigned int new_cluster_id)
 {
 	unsigned int mpidr, this_cpu, that_cpu;
 	unsigned int ob_mpidr, ob_cpu, ob_cluster, ib_mpidr, ib_cpu, ib_cluster;
+	struct completion inbound_alive;
 	struct tick_device *tdev;
 	enum clock_event_mode tdev_mode;
 	long volatile *handshake_ptr;
-	int ret;
+	int ipi_nr, ret;
 
 	this_cpu = smp_processor_id();
 	ob_mpidr = read_mpidr();
@@ -166,10 +167,18 @@ static int bL_switch_to(unsigned int new_cluster_id)
 	pr_debug("before switch: CPU %d MPIDR %#x -> %#x\n",
 		 this_cpu, ob_mpidr, ib_mpidr);
 
+	this_cpu = smp_processor_id();
+
 	/* Close the gate for our entry vectors */
 	mcpm_set_entry_vector(ob_cpu, ob_cluster, NULL);
 	mcpm_set_entry_vector(ib_cpu, ib_cluster, NULL);
 
+	/* Install our "inbound alive" notifier. */
+	init_completion(&inbound_alive);
+	ipi_nr = register_ipi_completion(&inbound_alive, this_cpu);
+	ipi_nr |= ((1 << 16) << bL_gic_id[ob_cpu][ob_cluster]);
+	mcpm_set_early_poke(ib_cpu, ib_cluster, gic_get_sgir_physaddr(), ipi_nr);
+
 	/*
 	 * Let's wake up the inbound CPU now in case it requires some delay
 	 * to come online, but leave it gated in our entry vector code.
@@ -180,6 +189,19 @@ static int bL_switch_to(unsigned int new_cluster_id)
 		return ret;
 	}
 
+	/*
+	 * Raise a SGI on the inbound CPU to make sure it doesn't stall
+	 * in a possible WFI, such as in bL_power_down().
+	 */
+	gic_send_sgi(bL_gic_id[ib_cpu][ib_cluster], 0);
+
+	/*
+	 * Wait for the inbound to come up.  This allows for other
+	 * tasks to be scheduled in the mean time.
+	 */
+	wait_for_completion(&inbound_alive);
+	mcpm_set_early_poke(ib_cpu, ib_cluster, 0, 0);
+
 	/*
 	 * From this point we are entering the switch critical zone
 	 * and can't take any interrupts anymore.
@@ -190,12 +212,6 @@ static int bL_switch_to(unsigned int new_cluster_id)
 	/* redirect GIC's SGIs to our counterpart */
 	gic_migrate_target(bL_gic_id[ib_cpu][ib_cluster]);
 
-	/*
-	 * Raise a SGI on the inbound CPU to make sure it doesn't stall
-	 * in a possible WFI, such as in mcpm_power_down().
-	 */
-	arch_send_wakeup_ipi_mask(cpumask_of(this_cpu));
-
 	tdev = tick_get_device(this_cpu);
 	if (tdev && !cpumask_equal(tdev->evtdev->cpumask, cpumask_of(this_cpu)))
 		tdev = NULL;
-- 
cgit 


From 1bfbddb6f3a0dbb8c3996d1c4d4911d695737c15 Mon Sep 17 00:00:00 2001
From: Dave Martin <dave.martin@linaro.org>
Date: Mon, 14 May 2012 17:40:07 +0100
Subject: ARM: bL_switcher: Basic trace events support

This patch adds simple trace events to the b.L switcher code
to allow tracing of CPU migration events.

To make use of the trace events, you will need:

CONFIG_FTRACE=y
CONFIG_ENABLE_DEFAULT_TRACERS=y

The following events are added:
  * power:cpu_migrate_begin
  * power:cpu_migrate_finish

each with the following data:
    u64     timestamp;
    u32     cpu_hwid;

power:cpu_migrate_begin occurs immediately before the
switcher-specific migration operations start.
power:cpu_migrate_finish occurs immediately when migration is
completed.

The cpu_hwid field contains the ID fields of the MPIDR.

* For power:cpu_migrate_begin, cpu_hwid is the ID of the outbound
  physical CPU (equivalent to (from_phys_cpu,from_phys_cluster)).

* For power:cpu_migrate_finish, cpu_hwid is the ID of the inbound
  physical CPU (equivalent to (to_phys_cpu,to_phys_cluster)).

By design, the cpu_hwid field is masked in the same way as the
device tree cpu node reg property, allowing direct correlation to
the DT description of the hardware.

The timestamp is added in order to minimise timing noise.  An
accurate system-wide clock should be used for generating this
(hopefully getnstimeofday is appropriate, but it could be changed).
It could be any monotonic shared clock, since the aim is to allow
accurate deltas to be computed.  We don't necessarily care about
accurate synchronisation with wall clock time.

In practice, each switch takes place on a single logical CPU,
and the trace infrastructure should guarantee that events are
well-ordered with respect to a single logical CPU.

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
 arch/arm/common/bL_switcher.c            | 17 ++++++++
 include/trace/events/power_cpu_migrate.h | 66 ++++++++++++++++++++++++++++++++
 2 files changed, 83 insertions(+)
 create mode 100644 include/trace/events/power_cpu_migrate.h

diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index dc53eb8dcc81..7002de360d23 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -20,6 +20,7 @@
 #include <linux/cpumask.h>
 #include <linux/kthread.h>
 #include <linux/wait.h>
+#include <linux/time.h>
 #include <linux/clockchips.h>
 #include <linux/hrtimer.h>
 #include <linux/tick.h>
@@ -33,10 +34,14 @@
 #include <linux/moduleparam.h>
 
 #include <asm/smp_plat.h>
+#include <asm/cputype.h>
 #include <asm/suspend.h>
 #include <asm/mcpm.h>
 #include <asm/bL_switcher.h>
 
+#define CREATE_TRACE_POINTS
+#include <trace/events/power_cpu_migrate.h>
+
 
 /*
  * Use our own MPIDR accessors as the generic ones in asm/cputype.h have
@@ -51,6 +56,16 @@ static int read_mpidr(void)
 	return id & MPIDR_HWID_BITMASK;
 }
 
+/*
+ * Get a global nanosecond time stamp for tracing.
+ */
+static s64 get_ns(void)
+{
+	struct timespec ts;
+	getnstimeofday(&ts);
+	return timespec_to_ns(&ts);
+}
+
 /*
  * bL switcher core code.
  */
@@ -208,6 +223,7 @@ static int bL_switch_to(unsigned int new_cluster_id)
 	 */
 	local_irq_disable();
 	local_fiq_disable();
+	trace_cpu_migrate_begin(get_ns(), ob_mpidr);
 
 	/* redirect GIC's SGIs to our counterpart */
 	gic_migrate_target(bL_gic_id[ib_cpu][ib_cluster]);
@@ -250,6 +266,7 @@ static int bL_switch_to(unsigned int new_cluster_id)
 					  tdev->evtdev->next_event, 1);
 	}
 
+	trace_cpu_migrate_finish(get_ns(), ib_mpidr);
 	local_fiq_enable();
 	local_irq_enable();
 
diff --git a/include/trace/events/power_cpu_migrate.h b/include/trace/events/power_cpu_migrate.h
new file mode 100644
index 000000000000..3694af0f5bc5
--- /dev/null
+++ b/include/trace/events/power_cpu_migrate.h
@@ -0,0 +1,66 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM power
+
+#if !defined(_TRACE_POWER_CPU_MIGRATE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_POWER_CPU_MIGRATE_H
+
+#include <linux/tracepoint.h>
+
+#define __cpu_migrate_proto			\
+	TP_PROTO(u64 timestamp,			\
+		 u32 cpu_hwid)
+#define __cpu_migrate_args			\
+	TP_ARGS(timestamp,			\
+		cpu_hwid)
+
+DECLARE_EVENT_CLASS(cpu_migrate,
+
+	__cpu_migrate_proto,
+	__cpu_migrate_args,
+
+	TP_STRUCT__entry(
+		__field(u64,	timestamp		)
+		__field(u32,	cpu_hwid		)
+	),
+
+	TP_fast_assign(
+		__entry->timestamp = timestamp;
+		__entry->cpu_hwid = cpu_hwid;
+	),
+
+	TP_printk("timestamp=%llu cpu_hwid=0x%08lX",
+		(unsigned long long)__entry->timestamp,
+		(unsigned long)__entry->cpu_hwid
+	)
+);
+
+#define __define_cpu_migrate_event(name)		\
+	DEFINE_EVENT(cpu_migrate, cpu_migrate_##name,	\
+		__cpu_migrate_proto,			\
+		__cpu_migrate_args			\
+	)
+
+__define_cpu_migrate_event(begin);
+__define_cpu_migrate_event(finish);
+
+#undef __define_cpu_migrate
+#undef __cpu_migrate_proto
+#undef __cpu_migrate_args
+
+/* This file can get included multiple times, TRACE_HEADER_MULTI_READ at top */
+#ifndef _PWR_CPU_MIGRATE_EVENT_AVOID_DOUBLE_DEFINING
+#define _PWR_CPU_MIGRATE_EVENT_AVOID_DOUBLE_DEFINING
+
+/*
+ * Set from_phys_cpu and to_phys_cpu to CPU_MIGRATE_ALL_CPUS to indicate
+ * a whole-cluster migration:
+ */
+#define CPU_MIGRATE_ALL_CPUS 0x80000000U
+#endif
+
+#endif /* _TRACE_POWER_CPU_MIGRATE_H */
+
+/* This part must be outside protection */
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE power_cpu_migrate
+#include <trace/define_trace.h>
-- 
cgit 


From b09bbe5b1267b6af22a9584d614f5eec5d74f405 Mon Sep 17 00:00:00 2001
From: Dave Martin <dave.martin@linaro.org>
Date: Wed, 6 Feb 2013 15:45:23 +0000
Subject: ARM: bL_switcher/trace: Add trace trigger for trace bootstrapping

When tracing switching, an external tracer needs a way to bootstrap
its knowledge of the logical<->physical CPU mapping.

This patch adds a sysfs attribute trace_trigger.  A write to this
attribute will generate a power:cpu_migrate_current event for each
online CPU, indicating the current physical CPU for each logical
CPU.

Activating or deactivating the switcher also generates these
events, so that the tracer knows about the resulting remapping of
affected CPUs.

Signed-off-by: Dave Martin <dave.martin@linaro.org>
---
 arch/arm/common/bL_switcher.c            | 36 ++++++++++++++++++++++++++++++++
 include/trace/events/power_cpu_migrate.h |  1 +
 2 files changed, 37 insertions(+)

diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index 7002de360d23..f0dc025077d5 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -27,6 +27,7 @@
 #include <linux/notifier.h>
 #include <linux/mm.h>
 #include <linux/mutex.h>
+#include <linux/smp.h>
 #include <linux/spinlock.h>
 #include <linux/string.h>
 #include <linux/sysfs.h>
@@ -531,6 +532,25 @@ static int bL_switcher_halve_cpus(void)
 	return 0;
 }
 
+static void bL_switcher_trace_trigger_cpu(void *__always_unused info)
+{
+	trace_cpu_migrate_current(get_ns(), read_mpidr());
+}
+
+static int bL_switcher_trace_trigger(void)
+{
+	int ret;
+
+	preempt_disable();
+
+	bL_switcher_trace_trigger_cpu(NULL);
+	ret = smp_call_function(bL_switcher_trace_trigger_cpu, NULL, true);
+
+	preempt_enable();
+
+	return ret;
+}
+
 static int bL_switcher_enable(void)
 {
 	int cpu, ret;
@@ -553,6 +573,8 @@ static int bL_switcher_enable(void)
 	if (ret)
 		goto error;
 
+	bL_switcher_trace_trigger();
+
 	for_each_online_cpu(cpu) {
 		struct bL_thread *t = &bL_threads[cpu];
 		spin_lock_init(&t->lock);
@@ -637,6 +659,8 @@ static void bL_switcher_disable(void)
 	}
 
 	bL_switcher_restore_cpus();
+	bL_switcher_trace_trigger();
+
 	bL_activation_notify(BL_NOTIFY_POST_DISABLE);
 
 out:
@@ -670,11 +694,23 @@ static ssize_t bL_switcher_active_store(struct kobject *kobj,
 	return (ret >= 0) ? count : ret;
 }
 
+static ssize_t bL_switcher_trace_trigger_store(struct kobject *kobj,
+		struct kobj_attribute *attr, const char *buf, size_t count)
+{
+	int ret = bL_switcher_trace_trigger();
+
+	return ret ? ret : count;
+}
+
 static struct kobj_attribute bL_switcher_active_attr =
 	__ATTR(active, 0644, bL_switcher_active_show, bL_switcher_active_store);
 
+static struct kobj_attribute bL_switcher_trace_trigger_attr =
+	__ATTR(trace_trigger, 0200, NULL, bL_switcher_trace_trigger_store);
+
 static struct attribute *bL_switcher_attrs[] = {
 	&bL_switcher_active_attr.attr,
+	&bL_switcher_trace_trigger_attr.attr,
 	NULL,
 };
 
diff --git a/include/trace/events/power_cpu_migrate.h b/include/trace/events/power_cpu_migrate.h
index 3694af0f5bc5..f76dd4de625e 100644
--- a/include/trace/events/power_cpu_migrate.h
+++ b/include/trace/events/power_cpu_migrate.h
@@ -42,6 +42,7 @@ DECLARE_EVENT_CLASS(cpu_migrate,
 
 __define_cpu_migrate_event(begin);
 __define_cpu_migrate_event(finish);
+__define_cpu_migrate_event(current);
 
 #undef __define_cpu_migrate
 #undef __cpu_migrate_proto
-- 
cgit 


From 29064b88466ee725613db16d8c05b0ec5443a309 Mon Sep 17 00:00:00 2001
From: Dave Martin <dave.martin@linaro.org>
Date: Mon, 11 Feb 2013 14:39:19 +0000
Subject: ARM: bL_switcher/trace: Add kernel trace trigger interface

This patch exports a bL_switcher_trace_trigger() function to
provide a means for drivers using the trace events to get the
current status when starting a trace session.

Calling this function is equivalent to pinging the trace_trigger
file in sysfs.

Signed-off-by: Dave Martin <dave.martin@linaro.org>
---
 arch/arm/common/bL_switcher.c      | 3 ++-
 arch/arm/include/asm/bL_switcher.h | 3 +++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index f0dc025077d5..f4878a36047a 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -537,7 +537,7 @@ static void bL_switcher_trace_trigger_cpu(void *__always_unused info)
 	trace_cpu_migrate_current(get_ns(), read_mpidr());
 }
 
-static int bL_switcher_trace_trigger(void)
+int bL_switcher_trace_trigger(void)
 {
 	int ret;
 
@@ -550,6 +550,7 @@ static int bL_switcher_trace_trigger(void)
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(bL_switcher_trace_trigger);
 
 static int bL_switcher_enable(void)
 {
diff --git a/arch/arm/include/asm/bL_switcher.h b/arch/arm/include/asm/bL_switcher.h
index 7d1cce8b8a0d..8ada5a885c70 100644
--- a/arch/arm/include/asm/bL_switcher.h
+++ b/arch/arm/include/asm/bL_switcher.h
@@ -54,6 +54,8 @@ int bL_switcher_unregister_notifier(struct notifier_block *nb);
 bool bL_switcher_get_enabled(void);
 void bL_switcher_put_enabled(void);
 
+int bL_switcher_trace_trigger(void);
+
 #else
 static inline int bL_switcher_register_notifier(struct notifier_block *nb)
 {
@@ -67,6 +69,7 @@ static inline int bL_switcher_unregister_notifier(struct notifier_block *nb)
 
 static inline bool bL_switcher_get_enabled(void) { return false; }
 static inline void bL_switcher_put_enabled(void) { }
+static inline int bL_switcher_trace_trigger(void) { return 0; }
 #endif /* CONFIG_BL_SWITCHER */
 
 #endif
-- 
cgit 


From d08e2e09042bd3f7ef66a35cb4bb92794ab26bb2 Mon Sep 17 00:00:00 2001
From: Dave Martin <dave.martin@linaro.org>
Date: Wed, 13 Feb 2013 16:20:44 +0000
Subject: ARM: bL_switcher: Add query interface to discover CPU affinities

When the switcher is active, there is no straightforward way to
figure out which logical CPU a given physical CPU maps to.

This patch provides a function
bL_switcher_get_logical_index(mpidr), which is analogous to
get_logical_index().

This function returns the logical CPU on which the specified
physical CPU is grouped (or -EINVAL if unknown).
If the switcher is inactive or not present, -EUNATCH is returned instead.

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
---
 arch/arm/common/bL_switcher.c      | 20 ++++++++++++++++++++
 arch/arm/include/asm/bL_switcher.h |  2 ++
 2 files changed, 22 insertions(+)

diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index f4878a36047a..63bbc4f70564 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -532,6 +532,26 @@ static int bL_switcher_halve_cpus(void)
 	return 0;
 }
 
+/* Determine the logical CPU a given physical CPU is grouped on. */
+int bL_switcher_get_logical_index(u32 mpidr)
+{
+	int cpu;
+
+	if (!bL_switcher_active)
+		return -EUNATCH;
+
+	mpidr &= MPIDR_HWID_BITMASK;
+	for_each_online_cpu(cpu) {
+		int pairing = bL_switcher_cpu_pairing[cpu];
+		if (pairing == -1)
+			continue;
+		if ((mpidr == cpu_logical_map(cpu)) ||
+		    (mpidr == cpu_logical_map(pairing)))
+			return cpu;
+	}
+	return -EINVAL;
+}
+
 static void bL_switcher_trace_trigger_cpu(void *__always_unused info)
 {
 	trace_cpu_migrate_current(get_ns(), read_mpidr());
diff --git a/arch/arm/include/asm/bL_switcher.h b/arch/arm/include/asm/bL_switcher.h
index 8ada5a885c70..1714800fa113 100644
--- a/arch/arm/include/asm/bL_switcher.h
+++ b/arch/arm/include/asm/bL_switcher.h
@@ -55,6 +55,7 @@ bool bL_switcher_get_enabled(void);
 void bL_switcher_put_enabled(void);
 
 int bL_switcher_trace_trigger(void);
+int bL_switcher_get_logical_index(u32 mpidr);
 
 #else
 static inline int bL_switcher_register_notifier(struct notifier_block *nb)
@@ -70,6 +71,7 @@ static inline int bL_switcher_unregister_notifier(struct notifier_block *nb)
 static inline bool bL_switcher_get_enabled(void) { return false; }
 static inline void bL_switcher_put_enabled(void) { }
 static inline int bL_switcher_trace_trigger(void) { return 0; }
+static inline int bL_switcher_get_logical_index(u32 mpidr) { return -EUNATCH; }
 #endif /* CONFIG_BL_SWITCHER */
 
 #endif
-- 
cgit 


From fdfe151127a75de037c7e32cef110ae9c7c5e3c8 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Thu, 5 Sep 2013 15:55:29 +0800
Subject: PCI: Use pci_is_pcie() to simplify code

Use pci_is_pcie() instead of pci_find_capability() to simplify code.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/probe.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 7ef0f868b3e0..c90d0f8021e7 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -641,8 +641,7 @@ static void pci_set_bus_speed(struct pci_bus *bus)
 		return;
 	}
 
-	pos = pci_find_capability(bridge, PCI_CAP_ID_EXP);
-	if (pos) {
+	if (pci_is_pcie(bridge)) {
 		u32 linkcap;
 		u16 linksta;
 
-- 
cgit 


From f8a26fe637fc740ebb927ce25dcf036363a998df Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Thu, 5 Sep 2013 15:55:28 +0800
Subject: x86/pci: Use cached pci_dev->pcie_cap to simplify code

The PCI core caches the PCIe Capability offset in pci_dev->pcie_cap, so
use that instead of pci_find_capability().  Use pci_bus_set_ops() when
replacing the device pci_ops.  And use #defines instead of numeric
constants.

[bhelgaas: changelog, also use PCI_EXP_LNKCTL_ASPMC]
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 arch/x86/pci/fixup.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/arch/x86/pci/fixup.c b/arch/x86/pci/fixup.c
index f5809fa2753e..b046e070e088 100644
--- a/arch/x86/pci/fixup.c
+++ b/arch/x86/pci/fixup.c
@@ -231,7 +231,7 @@ static int quirk_pcie_aspm_write(struct pci_bus *bus, unsigned int devfn, int wh
 	offset = quirk_aspm_offset[GET_INDEX(bus->self->device, devfn)];
 
 	if ((offset) && (where == offset))
-		value = value & 0xfffffffc;
+		value = value & ~PCI_EXP_LNKCTL_ASPMC;
 
 	return raw_pci_write(pci_domain_nr(bus), bus->number,
 						devfn, where, size, value);
@@ -252,7 +252,7 @@ static struct pci_ops quirk_pcie_aspm_ops = {
  */
 static void pcie_rootport_aspm_quirk(struct pci_dev *pdev)
 {
-	int cap_base, i;
+	int i;
 	struct pci_bus  *pbus;
 	struct pci_dev *dev;
 
@@ -278,7 +278,7 @@ static void pcie_rootport_aspm_quirk(struct pci_dev *pdev)
 		for (i = GET_INDEX(pdev->device, 0); i <= GET_INDEX(pdev->device, 7); ++i)
 			quirk_aspm_offset[i] = 0;
 
-		pbus->ops = pbus->parent->ops;
+		pci_bus_set_ops(pbus, pbus->parent->ops);
 	} else {
 		/*
 		 * If devices are attached to the root port at power-up or
@@ -286,13 +286,15 @@ static void pcie_rootport_aspm_quirk(struct pci_dev *pdev)
 		 * each root port to save the register offsets and replace the
 		 * bus ops.
 		 */
-		list_for_each_entry(dev, &pbus->devices, bus_list) {
+		list_for_each_entry(dev, &pbus->devices, bus_list)
 			/* There are 0 to 8 devices attached to this bus */
-			cap_base = pci_find_capability(dev, PCI_CAP_ID_EXP);
-			quirk_aspm_offset[GET_INDEX(pdev->device, dev->devfn)] = cap_base + 0x10;
-		}
-		pbus->ops = &quirk_pcie_aspm_ops;
+			quirk_aspm_offset[GET_INDEX(pdev->device, dev->devfn)] =
+				dev->pcie_cap + PCI_EXP_LNKCTL;
+
+		pci_bus_set_ops(pbus, &quirk_pcie_aspm_ops);
+		dev_info(&pbus->dev, "writes to ASPM control bits will be ignored\n");
 	}
+
 }
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_MCH_PA,	pcie_rootport_aspm_quirk);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_MCH_PA1,	pcie_rootport_aspm_quirk);
-- 
cgit 


From c0102c00d8c9f4109509d9d68631a1ad47703b5f Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Thu, 5 Sep 2013 15:55:25 +0800
Subject: [SCSI] bfa: Use pcie_set()/get_readrq() to simplify code

Use pcie_get_readrq()/pcie_set_readrq() to simplify code.

Jon Mason proposed a similar patch a couple years ago (see below).

[bhelgaas: validate pcie_max_read_reqsz, add pointer to Jon's patch]
Reference: http://lkml.kernel.org/r/1309191190-14670-1-git-send-email-jdmason@kudzu.us
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Anil Gurumurthy <agurumur@brocade.com>
Cc: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
---
 drivers/scsi/bfa/bfad.c | 53 +++++++++++--------------------------------------
 1 file changed, 12 insertions(+), 41 deletions(-)

diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index f8ca7becacca..7591fa4e28bb 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -766,49 +766,20 @@ bfad_pci_init(struct pci_dev *pdev, struct bfad_s *bfad)
 	bfad->pcidev = pdev;
 
 	/* Adjust PCIe Maximum Read Request Size */
-	if (pcie_max_read_reqsz > 0) {
-		int pcie_cap_reg;
-		u16 pcie_dev_ctl;
-		u16 mask = 0xffff;
-
-		switch (pcie_max_read_reqsz) {
-		case 128:
-			mask = 0x0;
-			break;
-		case 256:
-			mask = 0x1000;
-			break;
-		case 512:
-			mask = 0x2000;
-			break;
-		case 1024:
-			mask = 0x3000;
-			break;
-		case 2048:
-			mask = 0x4000;
-			break;
-		case 4096:
-			mask = 0x5000;
-			break;
-		default:
-			break;
-		}
-
-		pcie_cap_reg = pci_find_capability(pdev, PCI_CAP_ID_EXP);
-		if (mask != 0xffff && pcie_cap_reg) {
-			pcie_cap_reg += 0x08;
-			pci_read_config_word(pdev, pcie_cap_reg, &pcie_dev_ctl);
-			if ((pcie_dev_ctl & 0x7000) != mask) {
-				printk(KERN_WARNING "BFA[%s]: "
+	if (pci_is_pcie(pdev) && pcie_max_read_reqsz) {
+		if (pcie_max_read_reqsz >= 128 &&
+		    pcie_max_read_reqsz <= 4096 &&
+		    is_power_of_2(pcie_max_read_reqsz)) {
+			int max_rq = pcie_get_readrq(pdev);
+			printk(KERN_WARNING "BFA[%s]: "
 				"pcie_max_read_request_size is %d, "
-				"reset to %d\n", bfad->pci_name,
-				(1 << ((pcie_dev_ctl & 0x7000) >> 12)) << 7,
+				"reset to %d\n", bfad->pci_name, max_rq,
 				pcie_max_read_reqsz);
-
-				pcie_dev_ctl &= ~0x7000;
-				pci_write_config_word(pdev, pcie_cap_reg,
-						pcie_dev_ctl | mask);
-			}
+			pcie_set_readrq(pdev, pcie_max_read_reqsz);
+		} else {
+			printk(KERN_WARNING "BFA[%s]: invalid "
+			       "pcie_max_read_request_size %d ignored\n",
+			       bfad->pci_name, pcie_max_read_reqsz);
 		}
 	}
 
-- 
cgit 


From ad4d35f865408a494f0a4c02b1c7ebd3f80f5dbf Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Thu, 5 Sep 2013 15:55:26 +0800
Subject: [SCSI] csiostor: Use pcie_capability_clear_and_set_word() to simplify
 code

pci_is_pcie() and pcie_capability_clear_and_set_word() make it trivial
to set the PCIe Completion Timeout, so just fold the
csio_set_pcie_completion_timeout() function into its caller.

[bhelgaas: changelog, fold csio_set_pcie_completion_timeout() into caller]
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: Naresh Kumar Inna <naresh@chelsio.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jesper Juhl <jj@chaosbits.net>
---
 drivers/scsi/csiostor/csio_hw.c | 22 ++++------------------
 include/uapi/linux/pci_regs.h   |  3 ++-
 2 files changed, 6 insertions(+), 19 deletions(-)

diff --git a/drivers/scsi/csiostor/csio_hw.c b/drivers/scsi/csiostor/csio_hw.c
index 0eb35b9b3784..0eaec4748957 100644
--- a/drivers/scsi/csiostor/csio_hw.c
+++ b/drivers/scsi/csiostor/csio_hw.c
@@ -852,22 +852,6 @@ csio_hw_get_flash_params(struct csio_hw *hw)
 	return 0;
 }
 
-static void
-csio_set_pcie_completion_timeout(struct csio_hw *hw, u8 range)
-{
-	uint16_t val;
-	int pcie_cap;
-
-	if (!csio_pci_capability(hw->pdev, PCI_CAP_ID_EXP, &pcie_cap)) {
-		pci_read_config_word(hw->pdev,
-				     pcie_cap + PCI_EXP_DEVCTL2, &val);
-		val &= 0xfff0;
-		val |= range ;
-		pci_write_config_word(hw->pdev,
-				      pcie_cap + PCI_EXP_DEVCTL2, val);
-	}
-}
-
 /*****************************************************************************/
 /* HW State machine assists                                                  */
 /*****************************************************************************/
@@ -2069,8 +2053,10 @@ csio_hw_configure(struct csio_hw *hw)
 		goto out;
 	}
 
-	/* Set pci completion timeout value to 4 seconds. */
-	csio_set_pcie_completion_timeout(hw, 0xd);
+	/* Set PCIe completion timeout to 4 seconds */
+	if (pci_is_pcie(hw->pdev))
+		pcie_capability_clear_and_set_word(hw->pdev, PCI_EXP_DEVCTL2,
+				PCI_EXP_DEVCTL2_COMP_TIMEOUT, 0xd);
 
 	hw->chip_ops->chip_set_mem_win(hw, MEMWIN_CSIOSTOR);
 
diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h
index baa7852468ef..1a38377a0032 100644
--- a/include/uapi/linux/pci_regs.h
+++ b/include/uapi/linux/pci_regs.h
@@ -558,7 +558,8 @@
 #define  PCI_EXP_DEVCAP2_OBFF_MSG	0x00040000 /* New message signaling */
 #define  PCI_EXP_DEVCAP2_OBFF_WAKE	0x00080000 /* Re-use WAKE# for OBFF */
 #define PCI_EXP_DEVCTL2		40	/* Device Control 2 */
-#define  PCI_EXP_DEVCTL2_ARI		0x20	/* Alternative Routing-ID */
+#define  PCI_EXP_DEVCTL2_COMP_TIMEOUT	0x000f	/* Completion Timeout Value */
+#define  PCI_EXP_DEVCTL2_ARI		0x0020	/* Alternative Routing-ID */
 #define  PCI_EXP_DEVCTL2_IDO_REQ_EN	0x0100	/* Allow IDO for requests */
 #define  PCI_EXP_DEVCTL2_IDO_CMP_EN	0x0200	/* Allow IDO for completions */
 #define  PCI_EXP_DEVCTL2_LTR_EN		0x0400	/* Enable LTR mechanism */
-- 
cgit 


From ce9f7ed92adfc4c56c68d757e66fd1497dcf1130 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Thu, 5 Sep 2013 15:55:30 +0800
Subject: [SCSI] qla2xxx: Use pcie_is_pcie() to simplify code

Use pci_is_pcie() instead of pci_find_capability() to simplify code.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Chad Dupuis <chad.dupuis@qlogic.com>
Cc: Andrew Vasquez <andrew.vasquez@qlogic.com>
Cc: linux-driver@qlogic.com
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
---
 drivers/scsi/qla2xxx/qla_mr.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_mr.c b/drivers/scsi/qla2xxx/qla_mr.c
index 62ee7131b204..30d20e74e48a 100644
--- a/drivers/scsi/qla2xxx/qla_mr.c
+++ b/drivers/scsi/qla2xxx/qla_mr.c
@@ -507,7 +507,7 @@ qlafx00_pci_config(scsi_qla_host_t *vha)
 	pci_write_config_word(ha->pdev, PCI_COMMAND, w);
 
 	/* PCIe -- adjust Maximum Read Request Size (2048). */
-	if (pci_find_capability(ha->pdev, PCI_CAP_ID_EXP))
+	if (pci_is_pcie(ha->pdev))
 		pcie_set_readrq(ha->pdev, 2048);
 
 	ha->chip_revision = ha->pdev->revision;
@@ -660,10 +660,8 @@ char *
 qlafx00_pci_info_str(struct scsi_qla_host *vha, char *str)
 {
 	struct qla_hw_data *ha = vha->hw;
-	int pcie_reg;
 
-	pcie_reg = pci_find_capability(ha->pdev, PCI_CAP_ID_EXP);
-	if (pcie_reg) {
+	if (pci_is_pcie(ha->pdev)) {
 		strcpy(str, "PCIe iSA");
 		return str;
 	}
-- 
cgit 


From f0308261b1dd5acba5c7e797159e60f94706df7d Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Thu, 5 Sep 2013 15:55:27 +0800
Subject: powerpc/pci: Use pci_is_pcie() to simplify code

Use pci_is_pcie() to simplify code.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Reviewed-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Cc: Gavin Shan <shangw@linux.vnet.ibm.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/kernel/eeh.c     | 3 +--
 arch/powerpc/sysdev/fsl_pci.c | 2 +-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
index 55593ee2d5aa..6ebbe545b7a5 100644
--- a/arch/powerpc/kernel/eeh.c
+++ b/arch/powerpc/kernel/eeh.c
@@ -189,8 +189,7 @@ static size_t eeh_gather_pci_data(struct eeh_dev *edev, char * buf, size_t len)
 	}
 
 	/* If PCI-E capable, dump PCI-E cap 10, and the AER */
-	cap = pci_find_capability(dev, PCI_CAP_ID_EXP);
-	if (cap) {
+	if (pci_is_pcie(dev)) {
 		n += scnprintf(buf+n, len-n, "pci-e cap10:\n");
 		printk(KERN_WARNING
 		       "EEH: PCI-E capabilities and status follow:\n");
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index ccfb50ddfe38..92e7258478d8 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -45,7 +45,7 @@ static void quirk_fsl_pcie_header(struct pci_dev *dev)
 	u8 hdr_type;
 
 	/* if we aren't a PCIe don't bother */
-	if (!pci_find_capability(dev, PCI_CAP_ID_EXP))
+	if (!pci_is_pcie(dev))
 		return;
 
 	/* if we aren't in host mode don't bother */
-- 
cgit 


From b408a054931cdd1274f72fbeb297e3e3c7ce85f8 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:31:49 +0800
Subject: olpc_xo15_sci: convert acpi_evaluate_object() to
 acpi_execute_simple_method()

acpi_execute_simple_method() is a new ACPI API introduced to invoke
an ACPI control method that has single integer parameter and no return value.

Convert acpi_evaluate_object() to acpi_execute_simple_method()
in arch/x86/platform/olpc/olpc-xo15-sci.c

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Daniel Drake <dsd@laptop.org>
CC: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/x86/platform/olpc/olpc-xo15-sci.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/arch/x86/platform/olpc/olpc-xo15-sci.c b/arch/x86/platform/olpc/olpc-xo15-sci.c
index fef7d0ba7e3a..649a12befba9 100644
--- a/arch/x86/platform/olpc/olpc-xo15-sci.c
+++ b/arch/x86/platform/olpc/olpc-xo15-sci.c
@@ -40,16 +40,9 @@ static bool				lid_wake_on_close;
  */
 static int set_lid_wake_behavior(bool wake_on_close)
 {
-	struct acpi_object_list arg_list;
-	union acpi_object arg;
 	acpi_status status;
 
-	arg_list.count		= 1;
-	arg_list.pointer	= &arg;
-	arg.type		= ACPI_TYPE_INTEGER;
-	arg.integer.value	= wake_on_close;
-
-	status = acpi_evaluate_object(NULL, "\\_SB.PCI0.LID.LIDW", &arg_list, NULL);
+	status = acpi_execute_simple_method(NULL, "\\_SB.PCI0.LID.LIDW", wake_on_close);
 	if (ACPI_FAILURE(status)) {
 		pr_warning(PFX "failed to set lid behavior\n");
 		return 1;
-- 
cgit 


From 5e8ac96f2969aa7b73f630259ce7f5e40e2f8edd Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:31:50 +0800
Subject: gpiolib-acpi: convert acpi_evaluate_object() to
 acpi_execute_simple_method()

acpi_execute_simple_method() is a new ACPI API introduced to invoke
an ACPI control method that has single integer parameter and no return value.

Convert acpi_evaluate_object() to acpi_execute_simple_method()
in drivers/gpio/gpiolib-acpi.c

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/gpio/gpiolib-acpi.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 5c1ef2b3ef18..f2beb728ed8f 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -73,15 +73,8 @@ static irqreturn_t acpi_gpio_irq_handler(int irq, void *data)
 static irqreturn_t acpi_gpio_irq_handler_evt(int irq, void *data)
 {
 	struct acpi_gpio_evt_pin *evt_pin = data;
-	struct acpi_object_list args;
-	union acpi_object arg;
 
-	arg.type = ACPI_TYPE_INTEGER;
-	arg.integer.value = evt_pin->pin;
-	args.count = 1;
-	args.pointer = &arg;
-
-	acpi_evaluate_object(evt_pin->evt_handle, NULL, &args, NULL);
+	acpi_execute_simple_method(evt_pin->evt_handle, NULL, evt_pin->pin);
 
 	return IRQ_HANDLED;
 }
-- 
cgit 


From fca41991296444ebab32c0fc9850c62d838082f2 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:31:51 +0800
Subject: eeepc-laptop: convert acpi_evaluate_object() to
 acpi_execute_simple_method()

acpi_execute_simple_method() is a new ACPI API introduced to invoke
an ACPI control method that has single integer parameter and no return value.

Convert acpi_evaluate_object() to acpi_execute_simple_method()
in drivers/platform/x86/eeepc-laptop.c

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
CC: Corentin Chary <corentincj@iksaif.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/eeepc-laptop.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c
index a6afd4108beb..aefcc32e5634 100644
--- a/drivers/platform/x86/eeepc-laptop.c
+++ b/drivers/platform/x86/eeepc-laptop.c
@@ -190,16 +190,10 @@ struct eeepc_laptop {
  */
 static int write_acpi_int(acpi_handle handle, const char *method, int val)
 {
-	struct acpi_object_list params;
-	union acpi_object in_obj;
 	acpi_status status;
 
-	params.count = 1;
-	params.pointer = &in_obj;
-	in_obj.type = ACPI_TYPE_INTEGER;
-	in_obj.integer.value = val;
+	status = acpi_execute_simple_method(handle, (char *)method, val);
 
-	status = acpi_evaluate_object(handle, (char *)method, &params, NULL);
 	return (status == AE_OK ? 0 : -1);
 }
 
-- 
cgit 


From 6c7fe47a4a3c6e243830ba5f9c6908a38f5ee3ed Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:31:52 +0800
Subject: fujitsu-laptop: convert acpi_evaluate_object() to
 acpi_execute_simple_method()

acpi_execute_simple_method() is a new ACPI API introduced to invoke
an ACPI control method that has single integer parameter and no return value.

Convert acpi_evaluate_object() to acpi_execute_simple_method()
in drivers/platform/x86/fujitsu-laptop.c

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
Acked-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/fujitsu-laptop.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index 52b8a97efde1..29738cb2e3dd 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -317,8 +317,6 @@ static enum led_brightness kblamps_get(struct led_classdev *cdev)
 static int set_lcd_level(int level)
 {
 	acpi_status status = AE_OK;
-	union acpi_object arg0 = { ACPI_TYPE_INTEGER };
-	struct acpi_object_list arg_list = { 1, &arg0 };
 	acpi_handle handle = NULL;
 
 	vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBLL [%d]\n",
@@ -333,9 +331,8 @@ static int set_lcd_level(int level)
 		return -ENODEV;
 	}
 
-	arg0.integer.value = level;
 
-	status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
+	status = acpi_execute_simple_method(handle, NULL, level);
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
 
@@ -345,8 +342,6 @@ static int set_lcd_level(int level)
 static int set_lcd_level_alt(int level)
 {
 	acpi_status status = AE_OK;
-	union acpi_object arg0 = { ACPI_TYPE_INTEGER };
-	struct acpi_object_list arg_list = { 1, &arg0 };
 	acpi_handle handle = NULL;
 
 	vdbg_printk(FUJLAPTOP_DBG_TRACE, "set lcd level via SBL2 [%d]\n",
@@ -361,9 +356,7 @@ static int set_lcd_level_alt(int level)
 		return -ENODEV;
 	}
 
-	arg0.integer.value = level;
-
-	status = acpi_evaluate_object(handle, NULL, &arg_list, NULL);
+	status = acpi_execute_simple_method(handle, NULL, level);
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
 
-- 
cgit 


From b92f7a9f94841f3f0d39127a83c8728505a82fd5 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:31:53 +0800
Subject: intel-rst: convert acpi_evaluate_object() to
 acpi_execute_simple_method()

acpi_execute_simple_method() is a new ACPI API introduced to invoke
an ACPI control method that has single integer parameter and no return value.

Convert acpi_evaluate_object() to acpi_execute_simple_method()
in drivers/platform/x86/intel-rst.c

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/intel-rst.c | 20 ++------------------
 1 file changed, 2 insertions(+), 18 deletions(-)

diff --git a/drivers/platform/x86/intel-rst.c b/drivers/platform/x86/intel-rst.c
index 41b740cb28bc..c6346cc933c6 100644
--- a/drivers/platform/x86/intel-rst.c
+++ b/drivers/platform/x86/intel-rst.c
@@ -54,8 +54,6 @@ static ssize_t irst_store_wakeup_events(struct device *dev,
 					const char *buf, size_t count)
 {
 	struct acpi_device *acpi;
-	struct acpi_object_list input;
-	union acpi_object param;
 	acpi_status status;
 	unsigned long value;
 	int error;
@@ -67,13 +65,7 @@ static ssize_t irst_store_wakeup_events(struct device *dev,
 	if (error)
 		return error;
 
-	param.type = ACPI_TYPE_INTEGER;
-	param.integer.value = value;
-
-	input.count = 1;
-	input.pointer = &param;
-
-	status = acpi_evaluate_object(acpi->handle, "SFFS", &input, NULL);
+	status = acpi_execute_simple_method(acpi->handle, "SFFS", value);
 
 	if (!ACPI_SUCCESS(status))
 		return -EINVAL;
@@ -116,8 +108,6 @@ static ssize_t irst_store_wakeup_time(struct device *dev,
 				      const char *buf, size_t count)
 {
 	struct acpi_device *acpi;
-	struct acpi_object_list input;
-	union acpi_object param;
 	acpi_status status;
 	unsigned long value;
 	int error;
@@ -129,13 +119,7 @@ static ssize_t irst_store_wakeup_time(struct device *dev,
 	if (error)
 		return error;
 
-	param.type = ACPI_TYPE_INTEGER;
-	param.integer.value = value;
-
-	input.count = 1;
-	input.pointer = &param;
-
-	status = acpi_evaluate_object(acpi->handle, "SFTV", &input, NULL);
+	status = acpi_execute_simple_method(acpi->handle, "SFTV", value);
 
 	if (!ACPI_SUCCESS(status))
 		return -EINVAL;
-- 
cgit 


From 77c39851401121046b3129de9e5aeb2fd5ef7405 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:31:54 +0800
Subject: intel-smartconnect: convert acpi_evaluate_object() to
 acpi_execute_simple_method()

acpi_execute_simple_method() is a new ACPI API introduced to invoke
an ACPI control method that has single integer parameter and no return value.

Convert acpi_evaluate_object() to acpi_execute_simple_method()
in drivers/platform/x86/intel-smartconnect.c

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/intel-smartconnect.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/platform/x86/intel-smartconnect.c b/drivers/platform/x86/intel-smartconnect.c
index 52259dcabecb..898400865f40 100644
--- a/drivers/platform/x86/intel-smartconnect.c
+++ b/drivers/platform/x86/intel-smartconnect.c
@@ -25,10 +25,8 @@ MODULE_LICENSE("GPL");
 
 static int smartconnect_acpi_init(struct acpi_device *acpi)
 {
-	struct acpi_object_list input;
 	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
 	union acpi_object *result;
-	union acpi_object param;
 	acpi_status status;
 
 	status = acpi_evaluate_object(acpi->handle, "GAOS", NULL, &output);
@@ -43,15 +41,8 @@ static int smartconnect_acpi_init(struct acpi_device *acpi)
 	}
 
 	if (result->integer.value & 0x1) {
-		param.type = ACPI_TYPE_INTEGER;
-		param.integer.value = 0;
-
-		input.count = 1;
-		input.pointer = &param;
-
 		dev_info(&acpi->dev, "Disabling Intel Smart Connect\n");
-		status = acpi_evaluate_object(acpi->handle, "SAOS", &input,
-					      NULL);
+		status = acpi_execute_simple_method(acpi->handle, "SAOS", 0);
 	}
 
 	kfree(result);
-- 
cgit 


From a7f6451f0c78dcca2de1569edbf55fa30c9bae71 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:31:55 +0800
Subject: topstar-laptop: convert acpi_evaluate_object() to
 acpi_execute_simple_method()

acpi_execute_simple_method() is a new ACPI API introduced to invoke
an ACPI control method that has single integer parameter and no return value.

Convert acpi_evaluate_object() to acpi_execute_simple_method()
in drivers/platform/x86/topstar-laptop.c

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
CC: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/topstar-laptop.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/platform/x86/topstar-laptop.c b/drivers/platform/x86/topstar-laptop.c
index 4ab618c63b45..67897c8740ba 100644
--- a/drivers/platform/x86/topstar-laptop.c
+++ b/drivers/platform/x86/topstar-laptop.c
@@ -80,13 +80,9 @@ static void acpi_topstar_notify(struct acpi_device *device, u32 event)
 static int acpi_topstar_fncx_switch(struct acpi_device *device, bool state)
 {
 	acpi_status status;
-	union acpi_object fncx_params[1] = {
-		{ .type = ACPI_TYPE_INTEGER }
-	};
-	struct acpi_object_list fncx_arg_list = { 1, &fncx_params[0] };
 
-	fncx_params[0].integer.value = state ? 0x86 : 0x87;
-	status = acpi_evaluate_object(device->handle, "FNCX", &fncx_arg_list, NULL);
+	status = acpi_execute_simple_method(device->handle, "FNCX",
+						state ? 0x86 : 0x87);
 	if (ACPI_FAILURE(status)) {
 		pr_err("Unable to switch FNCX notifications\n");
 		return -ENODEV;
-- 
cgit 


From 619400dae9f2ee46ffa0a15a4a8a34a306b2aa24 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:31:56 +0800
Subject: toshiba_acpi: convert acpi_evaluate_object() to
 acpi_execute_simple_method()

acpi_execute_simple_method() is a new ACPI API introduced to invoke
an ACPI control method that has single integer parameter and no return value.

Convert acpi_evaluate_object() to acpi_execute_simple_method()
in drivers/platform/x86/toshiba_acpi.c

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/toshiba_acpi.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index eb3467ea6d86..4c0e6579c4ca 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -191,16 +191,9 @@ static __inline__ void _set_bit(u32 * word, u32 mask, int value)
 
 static int write_acpi_int(const char *methodName, int val)
 {
-	struct acpi_object_list params;
-	union acpi_object in_objs[1];
 	acpi_status status;
 
-	params.count = ARRAY_SIZE(in_objs);
-	params.pointer = in_objs;
-	in_objs[0].type = ACPI_TYPE_INTEGER;
-	in_objs[0].integer.value = val;
-
-	status = acpi_evaluate_object(NULL, (char *)methodName, &params, NULL);
+	status = acpi_execute_simple_method(NULL, (char *)methodName, val);
 	return (status == AE_OK) ? 0 : -EIO;
 }
 
-- 
cgit 


From 8122ab66b129678bf871aef7559640323eb465bb Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:31:57 +0800
Subject: wmi: convert acpi_evaluate_object() to acpi_execute_simple_method()

acpi_execute_simple_method() is a new ACPI API introduced to invoke
an ACPI control method that has single integer parameter and no return value.

Convert acpi_evaluate_object() to acpi_execute_simple_method()
in drivers/platform/x86/wmi.c

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/wmi.c | 25 ++++++-------------------
 1 file changed, 6 insertions(+), 19 deletions(-)

diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index 601ea9512242..3bb55060bd05 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -252,8 +252,6 @@ static acpi_status wmi_method_enable(struct wmi_block *wblock, int enable)
 {
 	struct guid_block *block = NULL;
 	char method[5];
-	struct acpi_object_list input;
-	union acpi_object params[1];
 	acpi_status status;
 	acpi_handle handle;
 
@@ -263,13 +261,9 @@ static acpi_status wmi_method_enable(struct wmi_block *wblock, int enable)
 	if (!block)
 		return AE_NOT_EXIST;
 
-	input.count = 1;
-	input.pointer = params;
-	params[0].type = ACPI_TYPE_INTEGER;
-	params[0].integer.value = enable;
 
 	snprintf(method, 5, "WE%02X", block->notify_id);
-	status = acpi_evaluate_object(handle, method, &input, NULL);
+	status = acpi_execute_simple_method(handle, method, enable);
 
 	if (status != AE_OK && status != AE_NOT_FOUND)
 		return status;
@@ -355,8 +349,8 @@ struct acpi_buffer *out)
 	struct wmi_block *wblock = NULL;
 	acpi_handle handle, wc_handle;
 	acpi_status status, wc_status = AE_ERROR;
-	struct acpi_object_list input, wc_input;
-	union acpi_object wc_params[1], wq_params[1];
+	struct acpi_object_list input;
+	union acpi_object wq_params[1];
 	char method[5];
 	char wc_method[5] = "WC";
 
@@ -386,11 +380,6 @@ struct acpi_buffer *out)
 	 * enable collection.
 	 */
 	if (block->flags & ACPI_WMI_EXPENSIVE) {
-		wc_input.count = 1;
-		wc_input.pointer = wc_params;
-		wc_params[0].type = ACPI_TYPE_INTEGER;
-		wc_params[0].integer.value = 1;
-
 		strncat(wc_method, block->object_id, 2);
 
 		/*
@@ -400,8 +389,8 @@ struct acpi_buffer *out)
 		 */
 		wc_status = acpi_get_handle(handle, wc_method, &wc_handle);
 		if (ACPI_SUCCESS(wc_status))
-			wc_status = acpi_evaluate_object(handle, wc_method,
-				&wc_input, NULL);
+			wc_status = acpi_execute_simple_method(handle,
+								wc_method, 1);
 	}
 
 	strcpy(method, "WQ");
@@ -414,9 +403,7 @@ struct acpi_buffer *out)
 	 * the WQxx method failed - we should disable collection anyway.
 	 */
 	if ((block->flags & ACPI_WMI_EXPENSIVE) && ACPI_SUCCESS(wc_status)) {
-		wc_params[0].integer.value = 0;
-		status = acpi_evaluate_object(handle,
-		wc_method, &wc_input, NULL);
+		status = acpi_execute_simple_method(handle, wc_method, 0);
 	}
 
 	return status;
-- 
cgit 


From 7ca9b574915a17a588db37c5635890fe660ef7e9 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:31:58 +0800
Subject: pcc_freq: convert acpi_get_handle() to acpi_has_method()

acpi_has_method() is a new ACPI API introduced to check
the existence of an ACPI control method.

It can be used to replace acpi_get_handle() in the case that
1. the calling function doesn't need the ACPI handle of the control method.
and
2. the calling function doesn't care the reason why the method is unavailable.

Convert acpi_get_handle() to acpi_has_method()
in drivers/cpufreq/pcc_freq.c in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/pcc-cpufreq.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/cpufreq/pcc-cpufreq.c b/drivers/cpufreq/pcc-cpufreq.c
index d81c4e5ea0ad..70438de5c0e4 100644
--- a/drivers/cpufreq/pcc-cpufreq.c
+++ b/drivers/cpufreq/pcc-cpufreq.c
@@ -396,15 +396,14 @@ static int __init pcc_cpufreq_probe(void)
 	struct pcc_memory_resource *mem_resource;
 	struct pcc_register_resource *reg_resource;
 	union acpi_object *out_obj, *member;
-	acpi_handle handle, osc_handle, pcch_handle;
+	acpi_handle handle, osc_handle;
 	int ret = 0;
 
 	status = acpi_get_handle(NULL, "\\_SB", &handle);
 	if (ACPI_FAILURE(status))
 		return -ENODEV;
 
-	status = acpi_get_handle(handle, "PCCH", &pcch_handle);
-	if (ACPI_FAILURE(status))
+	if (!acpi_has_method(handle, "PCCH"))
 		return -ENODEV;
 
 	status = acpi_get_handle(handle, "_OSC", &osc_handle);
-- 
cgit 


From 2a3ca1429589521df49fd9348fc382c34b57a88f Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:31:59 +0800
Subject: i915: intel_acpi: convert acpi_get_handle() to acpi_has_method()

acpi_has_method() is a new ACPI API introduced to check
the existence of an ACPI control method.

It can be used to replace acpi_get_handle() in the case that
1. the calling function doesn't need the ACPI handle of the control method.
and
2. the calling function doesn't care the reason why the method is unavailable.

Convert acpi_get_handle() to acpi_has_method()
in drivers/gpu/drm/i915/intel_acpi.c in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/gpu/drm/i915/intel_acpi.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_acpi.c b/drivers/gpu/drm/i915/intel_acpi.c
index 57fe1ae32a0d..43959edd4291 100644
--- a/drivers/gpu/drm/i915/intel_acpi.c
+++ b/drivers/gpu/drm/i915/intel_acpi.c
@@ -193,16 +193,14 @@ out:
 
 static bool intel_dsm_pci_probe(struct pci_dev *pdev)
 {
-	acpi_handle dhandle, intel_handle;
-	acpi_status status;
+	acpi_handle dhandle;
 	int ret;
 
 	dhandle = DEVICE_ACPI_HANDLE(&pdev->dev);
 	if (!dhandle)
 		return false;
 
-	status = acpi_get_handle(dhandle, "_DSM", &intel_handle);
-	if (ACPI_FAILURE(status)) {
+	if (!acpi_has_method(dhandle, "_DSM")) {
 		DRM_DEBUG_KMS("no _DSM method for intel device\n");
 		return false;
 	}
-- 
cgit 


From 187b5b5d520c2318a1f88fb8d8913a9d7fbf7d92 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:32:00 +0800
Subject: nouveau_acpi: convert acpi_get_handle() to acpi_has_method()

acpi_has_method() is a new ACPI API introduced to check
the existence of an ACPI control method.

It can be used to replace acpi_get_handle() in the case that
1. the calling function doesn't need the ACPI handle of the control method.
and
2. the calling function doesn't care the reason why the method is unavailable.

Convert acpi_get_handle() to acpi_has_method()
in drivers/gpu/drm/nouveau/nouveau_acpi.c in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Ben Skeggs <bskeggs@redhat.com>
CC: Dave Airlie <airlied@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/gpu/drm/nouveau/nouveau_acpi.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c
index dd7d2e182719..cfbeee607b3a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_acpi.c
+++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c
@@ -253,18 +253,15 @@ static struct vga_switcheroo_handler nouveau_dsm_handler = {
 
 static int nouveau_dsm_pci_probe(struct pci_dev *pdev)
 {
-	acpi_handle dhandle, nvidia_handle;
-	acpi_status status;
+	acpi_handle dhandle;
 	int retval = 0;
 
 	dhandle = DEVICE_ACPI_HANDLE(&pdev->dev);
 	if (!dhandle)
 		return false;
 
-	status = acpi_get_handle(dhandle, "_DSM", &nvidia_handle);
-	if (ACPI_FAILURE(status)) {
+	if (!acpi_has_method(dhandle, "_DSM"))
 		return false;
-	}
 
 	if (nouveau_test_dsm(dhandle, nouveau_dsm, NOUVEAU_DSM_POWER))
 		retval |= NOUVEAU_DSM_HAS_MUX;
-- 
cgit 


From 2fd6f9c302153ad136455a6bfb36afa97f631e41 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:32:01 +0800
Subject: acpi_pcihp: convert acpi_get_handle() to acpi_has_method()

acpi_has_method() is a new ACPI API introduced to check
the existence of an ACPI control method.

It can be used to replace acpi_get_handle() in the case that
1. the calling function doesn't need the ACPI handle of the control method.
and
2. the calling function doesn't care the reason why the method is unavailable.

Convert acpi_get_handle() to acpi_has_method()
in drivers/pci/hotplug/acpi_pcihp.c in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/pci/hotplug/acpi_pcihp.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c
index 2a47e82821da..5440131cd4ee 100644
--- a/drivers/pci/hotplug/acpi_pcihp.c
+++ b/drivers/pci/hotplug/acpi_pcihp.c
@@ -411,13 +411,10 @@ EXPORT_SYMBOL(acpi_get_hp_hw_control_from_firmware);
 static int pcihp_is_ejectable(acpi_handle handle)
 {
 	acpi_status status;
-	acpi_handle tmp;
 	unsigned long long removable;
-	status = acpi_get_handle(handle, "_ADR", &tmp);
-	if (ACPI_FAILURE(status))
+	if (!acpi_has_method(handle, "_ADR"))
 		return 0;
-	status = acpi_get_handle(handle, "_EJ0", &tmp);
-	if (ACPI_SUCCESS(status))
+	if (acpi_has_method(handle, "_EJ0"))
 		return 1;
 	status = acpi_evaluate_integer(handle, "_RMV", NULL, &removable);
 	if (ACPI_SUCCESS(status) && removable)
-- 
cgit 


From be07c00e1639e6aa098d8ac5ea4d5ac58c3dbc50 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:32:02 +0800
Subject: pci-acpi: convert acpi_get_handle() to acpi_has_method()

acpi_has_method() is a new ACPI API introduced to check
the existence of an ACPI control method.

It can be used to replace acpi_get_handle() in the case that
1. the calling function doesn't need the ACPI handle of the control method.
and
2. the calling function doesn't care the reason why the method is unavailable.

Convert acpi_get_handle() to acpi_has_method()
in drivers/pci/pci-acpi.c in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/pci/pci-acpi.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index b0299e6d9a3f..dfd1f59de729 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -181,7 +181,6 @@ static bool acpi_pci_power_manageable(struct pci_dev *dev)
 static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
 {
 	acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev);
-	acpi_handle tmp;
 	static const u8 state_conv[] = {
 		[PCI_D0] = ACPI_STATE_D0,
 		[PCI_D1] = ACPI_STATE_D1,
@@ -192,7 +191,7 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
 	int error = -EINVAL;
 
 	/* If the ACPI device has _EJ0, ignore the device */
-	if (!handle || ACPI_SUCCESS(acpi_get_handle(handle, "_EJ0", &tmp)))
+	if (!handle || acpi_has_method(handle, "_EJ0"))
 		return -ENODEV;
 
 	switch (state) {
-- 
cgit 


From dd13b9a6d58d15a2cc596e1eb0baa043705c7bc8 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:32:03 +0800
Subject: fujitsu-laptop: convert acpi_get_handle() to acpi_has_method()

acpi_has_method() is a new ACPI API introduced to check
the existence of an ACPI control method.

It can be used to replace acpi_get_handle() in the case that
1. the calling function doesn't need the ACPI handle of the control method.
and
2. the calling function doesn't care the reason why the method is unavailable.

Convert acpi_get_handle() to acpi_has_method()
in drivers/platform/x86/fujitsu-laptop.c in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
Acked-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/fujitsu-laptop.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index 29738cb2e3dd..765d8c15a0d9 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -579,11 +579,10 @@ static struct platform_driver fujitsupf_driver = {
 
 static void dmi_check_cb_common(const struct dmi_system_id *id)
 {
-	acpi_handle handle;
 	pr_info("Identified laptop model '%s'\n", id->ident);
 	if (use_alt_lcd_levels == -1) {
-		if (ACPI_SUCCESS(acpi_get_handle(NULL,
-				"\\_SB.PCI0.LPCB.FJEX.SBL2", &handle)))
+		if (acpi_has_method(NULL,
+				"\\_SB.PCI0.LPCB.FJEX.SBL2"))
 			use_alt_lcd_levels = 1;
 		else
 			use_alt_lcd_levels = 0;
@@ -646,7 +645,6 @@ static struct dmi_system_id fujitsu_dmi_table[] = {
 
 static int acpi_fujitsu_add(struct acpi_device *device)
 {
-	acpi_handle handle;
 	int result = 0;
 	int state = 0;
 	struct input_dev *input;
@@ -695,8 +693,7 @@ static int acpi_fujitsu_add(struct acpi_device *device)
 
 	fujitsu->dev = device;
 
-	if (ACPI_SUCCESS
-	    (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) {
+	if (acpi_has_method(device->handle, METHOD_NAME__INI)) {
 		vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
 		if (ACPI_FAILURE
 		    (acpi_evaluate_object
@@ -796,7 +793,6 @@ static void acpi_fujitsu_notify(struct acpi_device *device, u32 event)
 
 static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
 {
-	acpi_handle handle;
 	int result = 0;
 	int state = 0;
 	struct input_dev *input;
@@ -859,8 +855,7 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
 
 	fujitsu_hotkey->dev = device;
 
-	if (ACPI_SUCCESS
-	    (acpi_get_handle(device->handle, METHOD_NAME__INI, &handle))) {
+	if (acpi_has_method(device->handle, METHOD_NAME__INI)) {
 		vdbg_printk(FUJLAPTOP_DBG_INFO, "Invoking _INI\n");
 		if (ACPI_FAILURE
 		    (acpi_evaluate_object
-- 
cgit 


From 70122e3d3108d89d7d2dc0d8a11e7163a84d9d40 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:32:04 +0800
Subject: intel_menlow: convert acpi_get_handle() to acpi_has_method()

acpi_has_method() is a new ACPI API introduced to check
the existence of an ACPI control method.

It can be used to replace acpi_get_handle() in the case that
1. the calling function doesn't need the ACPI handle of the control method.
and
2. the calling function doesn't care the reason why the method is unavailable.

Convert acpi_get_handle() to acpi_has_method()
in drivers/platform/x86/intel_menlow.c in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/intel_menlow.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/platform/x86/intel_menlow.c b/drivers/platform/x86/intel_menlow.c
index d6cfc1558c2f..11244f8703c4 100644
--- a/drivers/platform/x86/intel_menlow.c
+++ b/drivers/platform/x86/intel_menlow.c
@@ -156,19 +156,15 @@ static struct thermal_cooling_device_ops memory_cooling_ops = {
 static int intel_menlow_memory_add(struct acpi_device *device)
 {
 	int result = -ENODEV;
-	acpi_status status = AE_OK;
-	acpi_handle dummy;
 	struct thermal_cooling_device *cdev;
 
 	if (!device)
 		return -EINVAL;
 
-	status = acpi_get_handle(device->handle, MEMORY_GET_BANDWIDTH, &dummy);
-	if (ACPI_FAILURE(status))
+	if (!acpi_has_method(device->handle, MEMORY_GET_BANDWIDTH))
 		goto end;
 
-	status = acpi_get_handle(device->handle, MEMORY_SET_BANDWIDTH, &dummy);
-	if (ACPI_FAILURE(status))
+	if (!acpi_has_method(device->handle, MEMORY_SET_BANDWIDTH))
 		goto end;
 
 	cdev = thermal_cooling_device_register("Memory controller", device,
-- 
cgit 


From 8a8bce1dc50c9beab55fc697230f910a9142fc3d Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:32:05 +0800
Subject: sony-laptop: convert acpi_get_handle() to acpi_has_method()

acpi_has_method() is a new ACPI API introduced to check
the existence of an ACPI control method.

It can be used to replace acpi_get_handle() in the case that
1. the calling function doesn't need the ACPI handle of the control method.
and
2. the calling function doesn't care the reason why the method is unavailable.

Convert acpi_get_handle() to acpi_has_method()
in drivers/platform/x86/sony-laptop.c in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
CC: Mattia Dongili <malattia@linux.it>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/sony-laptop.c | 28 +++++++++-------------------
 1 file changed, 9 insertions(+), 19 deletions(-)

diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index d3fd52036fd6..3b32852d6d2d 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -1509,7 +1509,6 @@ static void sony_nc_function_resume(void)
 static int sony_nc_resume(struct device *dev)
 {
 	struct sony_nc_value *item;
-	acpi_handle handle;
 
 	for (item = sony_nc_values; item->name; item++) {
 		int ret;
@@ -1524,15 +1523,13 @@ static int sony_nc_resume(struct device *dev)
 		}
 	}
 
-	if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
-					 &handle))) {
+	if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
 		int arg = 1;
 		if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
 			dprintk("ECON Method failed\n");
 	}
 
-	if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
-					 &handle)))
+	if (acpi_has_method(sony_nc_acpi_handle, "SN00"))
 		sony_nc_function_resume();
 
 	return 0;
@@ -2690,7 +2687,6 @@ static void sony_nc_backlight_ng_read_limits(int handle,
 
 static void sony_nc_backlight_setup(void)
 {
-	acpi_handle unused;
 	int max_brightness = 0;
 	const struct backlight_ops *ops = NULL;
 	struct backlight_properties props;
@@ -2725,8 +2721,7 @@ static void sony_nc_backlight_setup(void)
 		sony_nc_backlight_ng_read_limits(0x14c, &sony_bl_props);
 		max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset;
 
-	} else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT",
-						&unused))) {
+	} else if (acpi_has_method(sony_nc_acpi_handle, "GBRT")) {
 		ops = &sony_backlight_ops;
 		max_brightness = SONY_MAX_BRIGHTNESS - 1;
 
@@ -2758,7 +2753,6 @@ static int sony_nc_add(struct acpi_device *device)
 {
 	acpi_status status;
 	int result = 0;
-	acpi_handle handle;
 	struct sony_nc_value *item;
 
 	pr_info("%s v%s\n", SONY_NC_DRIVER_NAME, SONY_LAPTOP_DRIVER_VERSION);
@@ -2798,15 +2792,13 @@ static int sony_nc_add(struct acpi_device *device)
 		goto outplatform;
 	}
 
-	if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON",
-					 &handle))) {
+	if (acpi_has_method(sony_nc_acpi_handle, "ECON")) {
 		int arg = 1;
 		if (sony_nc_int_call(sony_nc_acpi_handle, "ECON", &arg, NULL))
 			dprintk("ECON Method failed\n");
 	}
 
-	if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "SN00",
-					 &handle))) {
+	if (acpi_has_method(sony_nc_acpi_handle, "SN00")) {
 		dprintk("Doing SNC setup\n");
 		/* retrieve the available handles */
 		result = sony_nc_handles_setup(sony_pf_device);
@@ -2829,9 +2821,8 @@ static int sony_nc_add(struct acpi_device *device)
 
 		/* find the available acpiget as described in the DSDT */
 		for (; item->acpiget && *item->acpiget; ++item->acpiget) {
-			if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
-							 *item->acpiget,
-							 &handle))) {
+			if (acpi_has_method(sony_nc_acpi_handle,
+							*item->acpiget)) {
 				dprintk("Found %s getter: %s\n",
 						item->name, *item->acpiget);
 				item->devattr.attr.mode |= S_IRUGO;
@@ -2841,9 +2832,8 @@ static int sony_nc_add(struct acpi_device *device)
 
 		/* find the available acpiset as described in the DSDT */
 		for (; item->acpiset && *item->acpiset; ++item->acpiset) {
-			if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle,
-							 *item->acpiset,
-							 &handle))) {
+			if (acpi_has_method(sony_nc_acpi_handle,
+							*item->acpiset)) {
 				dprintk("Found %s setter: %s\n",
 						item->name, *item->acpiset);
 				item->devattr.attr.mode |= S_IWUSR;
-- 
cgit 


From e2e196069fd68fcf8c20fd478f8b683e5403e575 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:32:06 +0800
Subject: toshiba_acpi: convert acpi_get_handle() to acpi_has_method()

acpi_has_method() is a new ACPI API introduced to check
the existence of an ACPI control method.

It can be used to replace acpi_get_handle() in the case that
1. the calling function doesn't need the ACPI handle of the control method.
and
2. the calling function doesn't care the reason why the method is unavailable.

Convert acpi_get_handle() to acpi_has_method()
in drivers/platform/x86/toshiba_acpi.c in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/toshiba_acpi.c | 21 ++++++---------------
 1 file changed, 6 insertions(+), 15 deletions(-)

diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index 4c0e6579c4ca..235185b710c8 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -974,7 +974,7 @@ static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
 static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
 {
 	acpi_status status;
-	acpi_handle ec_handle, handle;
+	acpi_handle ec_handle;
 	int error;
 	u32 hci_result;
 
@@ -1001,10 +1001,7 @@ static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
 	 */
 	status = AE_ERROR;
 	ec_handle = ec_get_handle();
-	if (ec_handle)
-		status = acpi_get_handle(ec_handle, "NTFY", &handle);
-
-	if (ACPI_SUCCESS(status)) {
+	if (ec_handle && acpi_has_method(ec_handle, "NTFY")) {
 		INIT_WORK(&dev->hotkey_work, toshiba_acpi_hotkey_work);
 
 		error = i8042_install_filter(toshiba_acpi_i8042_filter);
@@ -1020,10 +1017,9 @@ static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
 	 * Determine hotkey query interface. Prefer using the INFO
 	 * method when it is available.
 	 */
-	status = acpi_get_handle(dev->acpi_dev->handle, "INFO", &handle);
-	if (ACPI_SUCCESS(status)) {
+	if (acpi_has_method(dev->acpi_dev->handle, "INFO"))
 		dev->info_supported = 1;
-	} else {
+	else {
 		hci_write1(dev, HCI_SYSTEM_EVENT, 1, &hci_result);
 		if (hci_result == HCI_SUCCESS)
 			dev->system_event_supported = 1;
@@ -1148,15 +1144,10 @@ static int toshiba_acpi_remove(struct acpi_device *acpi_dev)
 
 static const char *find_hci_method(acpi_handle handle)
 {
-	acpi_status status;
-	acpi_handle hci_handle;
-
-	status = acpi_get_handle(handle, "GHCI", &hci_handle);
-	if (ACPI_SUCCESS(status))
+	if (acpi_has_method(handle, "GHCI"))
 		return "GHCI";
 
-	status = acpi_get_handle(handle, "SPFC", &hci_handle);
-	if (ACPI_SUCCESS(status))
+	if (acpi_has_method(handle, "SPFC"))
 		return "SPFC";
 
 	return NULL;
-- 
cgit 


From 54f14c277d78cd4fee860f5daf391a5759f8596f Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:32:07 +0800
Subject: wmi: convert acpi_get_handle() to acpi_has_method()

acpi_has_method() is a new ACPI API introduced to check
the existence of an ACPI control method.

It can be used to replace acpi_get_handle() in the case that
1. the calling function doesn't need the ACPI handle of the control method.
and
2. the calling function doesn't care the reason why the method is unavailable.

Convert acpi_get_handle() to acpi_has_method()
in drivers/platform/x86/wmi.c in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/wmi.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index 3bb55060bd05..62e8c221d01e 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -347,7 +347,7 @@ struct acpi_buffer *out)
 {
 	struct guid_block *block = NULL;
 	struct wmi_block *wblock = NULL;
-	acpi_handle handle, wc_handle;
+	acpi_handle handle;
 	acpi_status status, wc_status = AE_ERROR;
 	struct acpi_object_list input;
 	union acpi_object wq_params[1];
@@ -387,8 +387,7 @@ struct acpi_buffer *out)
 		 * expensive, but have no corresponding WCxx method. So we
 		 * should not fail if this happens.
 		 */
-		wc_status = acpi_get_handle(handle, wc_method, &wc_handle);
-		if (ACPI_SUCCESS(wc_status))
+		if (acpi_has_method(handle, wc_method))
 			wc_status = acpi_execute_simple_method(handle,
 								wc_method, 1);
 	}
-- 
cgit 


From 0e77e2c416e8fa110fa0e749db0ae1e9344b6050 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:32:08 +0800
Subject: pnpacpi: convert acpi_get_handle() to acpi_has_method()

acpi_has_method() is a new ACPI API introduced to check
the existence of an ACPI control method.

It can be used to replace acpi_get_handle() in the case that
1. the calling function doesn't need the ACPI handle of the control method.
and
2. the calling function doesn't care the reason why the method is unavailable.

Convert acpi_get_handle() to acpi_has_method()
in drivers/pnp/pnpacpi/core.c in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/pnp/pnpacpi/core.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c
index 34049b0b4c73..747826d99059 100644
--- a/drivers/pnp/pnpacpi/core.c
+++ b/drivers/pnp/pnpacpi/core.c
@@ -239,8 +239,6 @@ static char *__init pnpacpi_get_id(struct acpi_device *device)
 
 static int __init pnpacpi_add_device(struct acpi_device *device)
 {
-	acpi_handle temp = NULL;
-	acpi_status status;
 	struct pnp_dev *dev;
 	char *pnpid;
 	struct acpi_hardware_id *id;
@@ -253,8 +251,7 @@ static int __init pnpacpi_add_device(struct acpi_device *device)
 	 * If a PnPacpi device is not present , the device
 	 * driver should not be loaded.
 	 */
-	status = acpi_get_handle(device->handle, "_CRS", &temp);
-	if (ACPI_FAILURE(status))
+	if (!acpi_has_method(device->handle, "_CRS"))
 		return 0;
 
 	pnpid = pnpacpi_get_id(device);
@@ -271,16 +268,14 @@ static int __init pnpacpi_add_device(struct acpi_device *device)
 	dev->data = device;
 	/* .enabled means the device can decode the resources */
 	dev->active = device->status.enabled;
-	status = acpi_get_handle(device->handle, "_SRS", &temp);
-	if (ACPI_SUCCESS(status))
+	if (acpi_has_method(device->handle, "_SRS"))
 		dev->capabilities |= PNP_CONFIGURABLE;
 	dev->capabilities |= PNP_READ;
 	if (device->flags.dynamic_status && (dev->capabilities & PNP_CONFIGURABLE))
 		dev->capabilities |= PNP_WRITE;
 	if (device->flags.removable)
 		dev->capabilities |= PNP_REMOVABLE;
-	status = acpi_get_handle(device->handle, "_DIS", &temp);
-	if (ACPI_SUCCESS(status))
+	if (acpi_has_method(device->handle, "_DIS"))
 		dev->capabilities |= PNP_DISABLE;
 
 	if (strlen(acpi_device_name(device)))
-- 
cgit 


From 6ebb5bc9e61be4315202c15a0f53f636e8f0bf2e Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:32:09 +0800
Subject: acpi_processor: convert acpi_evaluate_object() to
 acpi_evaluate_integer()

acpi_evaluate_integer() is an ACPI API introduced to evaluate an
ACPI control method that is known to have an integer return value.
This API can simplify the code because the calling function does not need to
use the specified acpi_buffer structure required by acpi_evaluate_object();

Convert acpi_evaluate_object() to acpi_evaluate_integer()
in drivers/acpi/acpi_processor.c in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_processor.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index f29e06efa479..357abdc1406a 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -219,6 +219,7 @@ static int acpi_processor_get_info(struct acpi_device *device)
 	int cpu_index, device_declaration = 0;
 	acpi_status status = AE_OK;
 	static int cpu0_initialized;
+	unsigned long long value;
 
 	if (num_online_cpus() > 1)
 		errata.smp = TRUE;
@@ -258,7 +259,6 @@ static int acpi_processor_get_info(struct acpi_device *device)
 		 * Declared with "Device" statement; match _UID.
 		 * Note that we don't handle string _UIDs yet.
 		 */
-		unsigned long long value;
 		status = acpi_evaluate_integer(pr->handle, METHOD_NAME__UID,
 						NULL, &value);
 		if (ACPI_FAILURE(status)) {
@@ -332,9 +332,9 @@ static int acpi_processor_get_info(struct acpi_device *device)
 	 * ensure we get the right value in the "physical id" field
 	 * of /proc/cpuinfo
 	 */
-	status = acpi_evaluate_object(pr->handle, "_SUN", NULL, &buffer);
+	status = acpi_evaluate_integer(pr->handle, "_SUN", NULL, &value);
 	if (ACPI_SUCCESS(status))
-		arch_fix_phys_package_id(pr->id, object.integer.value);
+		arch_fix_phys_package_id(pr->id, value);
 
 	return 0;
 }
-- 
cgit 


From 6a868e171c3800442f59b74ec1e0eaf7d858eb58 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:32:10 +0800
Subject: ACPI: dock: convert acpi_evaluate_object() to acpi_evaluate_integer()

acpi_evaluate_integer() is an ACPI API introduced to evaluate an
ACPI control method that is known to have an integer return value.
This API can simplify the code because the calling function does not need to
use the specified acpi_buffer structure required by acpi_evaluate_object();

Convert acpi_evaluate_object() to acpi_evaluate_integer()
in drivers/acpi/dock.c in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/dock.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 05ea4be01a83..ca86c1ce7c8a 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -441,7 +441,7 @@ static void handle_dock(struct dock_station *ds, int dock)
 	acpi_status status;
 	struct acpi_object_list arg_list;
 	union acpi_object arg;
-	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+	unsigned long long value;
 
 	acpi_handle_info(ds->handle, "%s\n", dock ? "docking" : "undocking");
 
@@ -450,12 +450,10 @@ static void handle_dock(struct dock_station *ds, int dock)
 	arg_list.pointer = &arg;
 	arg.type = ACPI_TYPE_INTEGER;
 	arg.integer.value = dock;
-	status = acpi_evaluate_object(ds->handle, "_DCK", &arg_list, &buffer);
+	status = acpi_evaluate_integer(ds->handle, "_DCK", &arg_list, &value);
 	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND)
 		acpi_handle_err(ds->handle, "Failed to execute _DCK (0x%x)\n",
 				status);
-
-	kfree(buffer.pointer);
 }
 
 static inline void dock(struct dock_station *ds)
-- 
cgit 


From 74da276028966f333acc97b59292f928c16c1709 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:32:11 +0800
Subject: i2c-hid: convert acpi_evaluate_object() to acpi_evaluate_integer()

acpi_evaluate_integer() is an ACPI API introduced to evaluate an
ACPI control method that is known to have an integer return value.
This API can simplify the code because the calling function does not need to
use the specified acpi_buffer structure required by acpi_evaluate_object();

Convert acpi_evaluate_object() to acpi_evaluate_integer()
in drivers/hid/i2c-hid/i2c-hid.c in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/hid/i2c-hid/i2c-hid.c | 18 +++++-------------
 1 file changed, 5 insertions(+), 13 deletions(-)

diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index c1336193b04b..fd7ce374f812 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -854,10 +854,10 @@ static int i2c_hid_acpi_pdata(struct i2c_client *client,
 		0xF7, 0xF6, 0xDF, 0x3C, 0x67, 0x42, 0x55, 0x45,
 		0xAD, 0x05, 0xB3, 0x0A, 0x3D, 0x89, 0x38, 0xDE,
 	};
-	struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER, NULL };
-	union acpi_object params[4], *obj;
+	union acpi_object params[4];
 	struct acpi_object_list input;
 	struct acpi_device *adev;
+	unsigned long long value;
 	acpi_handle handle;
 
 	handle = ACPI_HANDLE(&client->dev);
@@ -878,22 +878,14 @@ static int i2c_hid_acpi_pdata(struct i2c_client *client,
 	params[3].package.count = 0;
 	params[3].package.elements = NULL;
 
-	if (ACPI_FAILURE(acpi_evaluate_object(handle, "_DSM", &input, &buf))) {
+	if (ACPI_FAILURE(acpi_evaluate_integer(handle, "_DSM", &input,
+								&value))) {
 		dev_err(&client->dev, "device _DSM execution failed\n");
 		return -ENODEV;
 	}
 
-	obj = (union acpi_object *)buf.pointer;
-	if (obj->type != ACPI_TYPE_INTEGER) {
-		dev_err(&client->dev, "device _DSM returned invalid type: %d\n",
-			obj->type);
-		kfree(buf.pointer);
-		return -EINVAL;
-	}
-
-	pdata->hid_descriptor_address = obj->integer.value;
+	pdata->hid_descriptor_address = value;
 
-	kfree(buf.pointer);
 	return 0;
 }
 
-- 
cgit 


From 29c29a9bb4d5abdb92480375e42e48a9190306e8 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:32:12 +0800
Subject: fujitsu-laptop: convert acpi_evaluate_object() to
 acpi_evaluate_integer()

acpi_evaluate_integer() is an ACPI API introduced to evaluate an
ACPI control method that is known to have an integer return value.
This API can simplify the code because the calling function does not need to
use the specified acpi_buffer structure required by acpi_evaluate_object();

Convert acpi_evaluate_object() to acpi_evaluate_integer()
in drivers/platform/x86/fujitsu-laptop.c in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
Acked-by: Jonathan Woithe <jwoithe@just42.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/fujitsu-laptop.c | 20 ++++----------------
 1 file changed, 4 insertions(+), 16 deletions(-)

diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index 765d8c15a0d9..9d30d69aa78f 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -219,8 +219,7 @@ static int call_fext_func(int cmd, int arg0, int arg1, int arg2)
 	{ .type = ACPI_TYPE_INTEGER }
 	};
 	struct acpi_object_list arg_list = { 4, &params[0] };
-	struct acpi_buffer output;
-	union acpi_object out_obj;
+	unsigned long long value;
 	acpi_handle handle = NULL;
 
 	status = acpi_get_handle(fujitsu_hotkey->acpi_handle, "FUNC", &handle);
@@ -235,10 +234,7 @@ static int call_fext_func(int cmd, int arg0, int arg1, int arg2)
 	params[2].integer.value = arg1;
 	params[3].integer.value = arg2;
 
-	output.length = sizeof(out_obj);
-	output.pointer = &out_obj;
-
-	status = acpi_evaluate_object(handle, NULL, &arg_list, &output);
+	status = acpi_evaluate_integer(handle, NULL, &arg_list, &value);
 	if (ACPI_FAILURE(status)) {
 		vdbg_printk(FUJLAPTOP_DBG_WARN,
 			"FUNC 0x%x (args 0x%x, 0x%x, 0x%x) call failed\n",
@@ -246,18 +242,10 @@ static int call_fext_func(int cmd, int arg0, int arg1, int arg2)
 		return -ENODEV;
 	}
 
-	if (out_obj.type != ACPI_TYPE_INTEGER) {
-		vdbg_printk(FUJLAPTOP_DBG_WARN,
-			"FUNC 0x%x (args 0x%x, 0x%x, 0x%x) did not "
-			"return an integer\n",
-			cmd, arg0, arg1, arg2);
-		return -ENODEV;
-	}
-
 	vdbg_printk(FUJLAPTOP_DBG_TRACE,
 		"FUNC 0x%x (args 0x%x, 0x%x, 0x%x) returned 0x%x\n",
-			cmd, arg0, arg1, arg2, (int)out_obj.integer.value);
-	return out_obj.integer.value;
+			cmd, arg0, arg1, arg2, (int)value);
+	return value;
 }
 
 #if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE)
-- 
cgit 


From c7c878a41d8b087f292015d4afeb2950a5d28830 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:32:13 +0800
Subject: intel-rst: convert acpi_evaluate_object() to acpi_evaluate_integer()

acpi_evaluate_integer() is an ACPI API introduced to evaluate an
ACPI control method that is known to have an integer return value.
This API can simplify the code because the calling function does not need to
use the specified acpi_buffer structure required by acpi_evaluate_object();

Convert acpi_evaluate_object() to acpi_evaluate_integer()
in drivers/platform/x86/intel-rst.c in this patch.
Plus, this should also fix a memory leak that
the acpi_buffer is not freed in some cases.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/intel-rst.c | 28 ++++++----------------------
 1 file changed, 6 insertions(+), 22 deletions(-)

diff --git a/drivers/platform/x86/intel-rst.c b/drivers/platform/x86/intel-rst.c
index c6346cc933c6..a2083a9e5662 100644
--- a/drivers/platform/x86/intel-rst.c
+++ b/drivers/platform/x86/intel-rst.c
@@ -29,24 +29,16 @@ static ssize_t irst_show_wakeup_events(struct device *dev,
 				       char *buf)
 {
 	struct acpi_device *acpi;
-	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
-	union acpi_object *result;
+	unsigned long long value;
 	acpi_status status;
 
 	acpi = to_acpi_device(dev);
 
-	status = acpi_evaluate_object(acpi->handle, "GFFS", NULL, &output);
+	status = acpi_evaluate_integer(acpi->handle, "GFFS", NULL, &value);
 	if (!ACPI_SUCCESS(status))
 		return -EINVAL;
 
-	result = output.pointer;
-
-	if (result->type != ACPI_TYPE_INTEGER) {
-		kfree(result);
-		return -EINVAL;
-	}
-
-	return sprintf(buf, "%lld\n", result->integer.value);
+	return sprintf(buf, "%lld\n", value);
 }
 
 static ssize_t irst_store_wakeup_events(struct device *dev,
@@ -83,24 +75,16 @@ static ssize_t irst_show_wakeup_time(struct device *dev,
 				     struct device_attribute *attr, char *buf)
 {
 	struct acpi_device *acpi;
-	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
-	union acpi_object *result;
+	unsigned long long value;
 	acpi_status status;
 
 	acpi = to_acpi_device(dev);
 
-	status = acpi_evaluate_object(acpi->handle, "GFTV", NULL, &output);
+	status = acpi_evaluate_integer(acpi->handle, "GFTV", NULL, &value);
 	if (!ACPI_SUCCESS(status))
 		return -EINVAL;
 
-	result = output.pointer;
-
-	if (result->type != ACPI_TYPE_INTEGER) {
-		kfree(result);
-		return -EINVAL;
-	}
-
-	return sprintf(buf, "%lld\n", result->integer.value);
+	return sprintf(buf, "%lld\n", value);
 }
 
 static ssize_t irst_store_wakeup_time(struct device *dev,
-- 
cgit 


From 4a2d6f6637d59bafa8be5cd4c323684224422ef1 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:32:14 +0800
Subject: intel-smartconnect: convert acpi_evaluate_object() to
 acpi_evaluate_integer()

acpi_evaluate_integer() is an ACPI API introduced to evaluate an
ACPI control method that is known to have an integer return value.
This API can simplify the code because the calling function does not need to
use the specified acpi_buffer structure required by acpi_evaluate_object();

Convert acpi_evaluate_object() to acpi_evaluate_integer()
in drivers/platform/x86/intel-smartconnect.c in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/intel-smartconnect.c | 16 +++-------------
 1 file changed, 3 insertions(+), 13 deletions(-)

diff --git a/drivers/platform/x86/intel-smartconnect.c b/drivers/platform/x86/intel-smartconnect.c
index 898400865f40..1838400dc036 100644
--- a/drivers/platform/x86/intel-smartconnect.c
+++ b/drivers/platform/x86/intel-smartconnect.c
@@ -25,28 +25,18 @@ MODULE_LICENSE("GPL");
 
 static int smartconnect_acpi_init(struct acpi_device *acpi)
 {
-	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
-	union acpi_object *result;
+	unsigned long long value;
 	acpi_status status;
 
-	status = acpi_evaluate_object(acpi->handle, "GAOS", NULL, &output);
+	status = acpi_evaluate_integer(acpi->handle, "GAOS", NULL, &value);
 	if (!ACPI_SUCCESS(status))
 		return -EINVAL;
 
-	result = output.pointer;
-
-	if (result->type != ACPI_TYPE_INTEGER) {
-		kfree(result);
-		return -EINVAL;
-	}
-
-	if (result->integer.value & 0x1) {
+	if (value & 0x1) {
 		dev_info(&acpi->dev, "Disabling Intel Smart Connect\n");
 		status = acpi_execute_simple_method(acpi->handle, "SAOS", 0);
 	}
 
-	kfree(result);
-
 	return 0;
 }
 
-- 
cgit 


From 74facaf75d3de2dd81193d907d0bee050c259f0c Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Tue, 3 Sep 2013 08:32:15 +0800
Subject: toshiba_acpi: convert acpi_evaluate_object() to
 acpi_evaluate_integer()

acpi_evaluate_integer() is an ACPI API introduced to evaluate an
ACPI control method that is known to have an integer return value.
This API can simplify the code because the calling function does not need to
use the specified acpi_buffer structure required by acpi_evaluate_object();

Convert acpi_evaluate_object() to acpi_evaluate_integer()
in drivers/platform/x86/toshiba_acpi.c in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/toshiba_acpi.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index 235185b710c8..0cfadb65f7c6 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -940,21 +940,17 @@ static void toshiba_acpi_hotkey_work(struct work_struct *work)
  */
 static int toshiba_acpi_query_hotkey(struct toshiba_acpi_dev *dev)
 {
-	struct acpi_buffer buf;
-	union acpi_object out_obj;
+	unsigned long long value;
 	acpi_status status;
 
-	buf.pointer = &out_obj;
-	buf.length = sizeof(out_obj);
-
-	status = acpi_evaluate_object(dev->acpi_dev->handle, "INFO",
-				      NULL, &buf);
-	if (ACPI_FAILURE(status) || out_obj.type != ACPI_TYPE_INTEGER) {
+	status = acpi_evaluate_integer(dev->acpi_dev->handle, "INFO",
+				      NULL, &value);
+	if (ACPI_FAILURE(status)) {
 		pr_err("ACPI INFO method execution failed\n");
 		return -EIO;
 	}
 
-	return out_obj.integer.value;
+	return value;
 }
 
 static void toshiba_acpi_report_hotkey(struct toshiba_acpi_dev *dev,
-- 
cgit 


From ca9f62ac783bf88c54143f8065adc0fc8df859c1 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@huawei.com>
Date: Mon, 2 Sep 2013 11:57:34 +0800
Subject: ACPI / processor: Introduce apic_id in struct processor to save
 parsed APIC id

For cpu hot add, we evaluate _MAT or parse MADT twice to get APIC id,
here is the code logic:
acpi_processor_add()
	acpi_processor_get_info()
		acpi_get_cpuid() will evaluate _MAT or parse MADT;
	acpi_processor_hotadd_init()
		acpi_map_lsapic() will evaluate _MAT again;

This can be done more effectively, this patch introduces apic_id in struct
processor to save parsed APIC id, and then we can use it and remove the
duplicated _MAT evaluation.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_processor.c |  4 +++-
 drivers/acpi/processor_core.c | 26 +++++++++++++++++++++-----
 include/acpi/processor.h      |  3 +++
 3 files changed, 27 insertions(+), 6 deletions(-)

diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index f29e06efa479..f89f914cb97e 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -270,7 +270,9 @@ static int acpi_processor_get_info(struct acpi_device *device)
 		device_declaration = 1;
 		pr->acpi_id = value;
 	}
-	cpu_index = acpi_get_cpuid(pr->handle, device_declaration, pr->acpi_id);
+	pr->apic_id = acpi_get_apicid(pr->handle, device_declaration,
+					pr->acpi_id);
+	cpu_index = acpi_map_cpuid(pr->apic_id, pr->acpi_id);
 
 	/* Handle UP system running SMP kernel, with no LAPIC in MADT */
 	if (!cpu0_initialized && (cpu_index == -1) &&
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index cf34d903f4fb..b3171f30b319 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -162,16 +162,23 @@ exit:
 	return apic_id;
 }
 
-int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id)
+int acpi_get_apicid(acpi_handle handle, int type, u32 acpi_id)
 {
-#ifdef CONFIG_SMP
-	int i;
-#endif
-	int apic_id = -1;
+	int apic_id;
 
 	apic_id = map_mat_entry(handle, type, acpi_id);
 	if (apic_id == -1)
 		apic_id = map_madt_entry(type, acpi_id);
+
+	return apic_id;
+}
+
+int acpi_map_cpuid(int apic_id, u32 acpi_id)
+{
+#ifdef CONFIG_SMP
+	int i;
+#endif
+
 	if (apic_id == -1) {
 		/*
 		 * On UP processor, there is no _MAT or MADT table.
@@ -211,6 +218,15 @@ int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id)
 #endif
 	return -1;
 }
+
+int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id)
+{
+	int apic_id;
+
+	apic_id = acpi_get_apicid(handle, type, acpi_id);
+
+	return acpi_map_cpuid(apic_id, acpi_id);
+}
 EXPORT_SYMBOL_GPL(acpi_get_cpuid);
 
 static bool __init processor_physically_present(acpi_handle handle)
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 66096d06925e..7816e45f5d5a 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -199,6 +199,7 @@ struct acpi_processor_flags {
 struct acpi_processor {
 	acpi_handle handle;
 	u32 acpi_id;
+	u32 apic_id;
 	u32 id;
 	u32 pblk;
 	int performance_platform_limit;
@@ -314,6 +315,8 @@ static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit)
 
 /* in processor_core.c */
 void acpi_processor_set_pdc(acpi_handle handle);
+int acpi_get_apicid(acpi_handle, int type, u32 acpi_id);
+int acpi_map_cpuid(int apic_id, u32 acpi_id);
 int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id);
 
 /* in processor_throttling.c */
-- 
cgit 


From d536bf3dc97417471e2c5098837a1cddd7fbb3c7 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@huawei.com>
Date: Mon, 2 Sep 2013 11:57:35 +0800
Subject: ACPI / processor: use apic_id and remove duplicated _MAT evaluation

Since APIC id is saved in processor struct, just use it and
remove the duplicated _MAT evaluation.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/ia64/kernel/acpi.c       | 38 ++++----------------------------------
 arch/x86/kernel/acpi/boot.c   | 38 +++-----------------------------------
 drivers/acpi/acpi_processor.c |  2 +-
 include/linux/acpi.h          |  2 +-
 4 files changed, 9 insertions(+), 71 deletions(-)

diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index 5eb71d22c3d5..59d52e3aef12 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -882,40 +882,10 @@ __init void prefill_possible_map(void)
 		set_cpu_possible(i, true);
 }
 
-static int _acpi_map_lsapic(acpi_handle handle, int *pcpu)
+static int _acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu)
 {
-	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
-	union acpi_object *obj;
-	struct acpi_madt_local_sapic *lsapic;
 	cpumask_t tmp_map;
-	int cpu, physid;
-
-	if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer)))
-		return -EINVAL;
-
-	if (!buffer.length || !buffer.pointer)
-		return -EINVAL;
-
-	obj = buffer.pointer;
-	if (obj->type != ACPI_TYPE_BUFFER)
-	{
-		kfree(buffer.pointer);
-		return -EINVAL;
-	}
-
-	lsapic = (struct acpi_madt_local_sapic *)obj->buffer.pointer;
-
-	if ((lsapic->header.type != ACPI_MADT_TYPE_LOCAL_SAPIC) ||
-	    (!(lsapic->lapic_flags & ACPI_MADT_ENABLED))) {
-		kfree(buffer.pointer);
-		return -EINVAL;
-	}
-
-	physid = ((lsapic->id << 8) | (lsapic->eid));
-
-	kfree(buffer.pointer);
-	buffer.length = ACPI_ALLOCATE_BUFFER;
-	buffer.pointer = NULL;
+	int cpu;
 
 	cpumask_complement(&tmp_map, cpu_present_mask);
 	cpu = cpumask_first(&tmp_map);
@@ -934,9 +904,9 @@ static int _acpi_map_lsapic(acpi_handle handle, int *pcpu)
 }
 
 /* wrapper to silence section mismatch warning */
-int __ref acpi_map_lsapic(acpi_handle handle, int *pcpu)
+int __ref acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu)
 {
-	return _acpi_map_lsapic(handle, pcpu);
+	return _acpi_map_lsapic(handle, physid, pcpu);
 }
 EXPORT_SYMBOL(acpi_map_lsapic);
 
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 40c76604199f..f6dbb2f5e39f 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -614,44 +614,12 @@ static void acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
 #endif
 }
 
-static int _acpi_map_lsapic(acpi_handle handle, int *pcpu)
+static int _acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu)
 {
-	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
-	union acpi_object *obj;
-	struct acpi_madt_local_apic *lapic;
 	cpumask_var_t tmp_map, new_map;
-	u8 physid;
 	int cpu;
 	int retval = -ENOMEM;
 
-	if (ACPI_FAILURE(acpi_evaluate_object(handle, "_MAT", NULL, &buffer)))
-		return -EINVAL;
-
-	if (!buffer.length || !buffer.pointer)
-		return -EINVAL;
-
-	obj = buffer.pointer;
-	if (obj->type != ACPI_TYPE_BUFFER ||
-	    obj->buffer.length < sizeof(*lapic)) {
-		kfree(buffer.pointer);
-		return -EINVAL;
-	}
-
-	lapic = (struct acpi_madt_local_apic *)obj->buffer.pointer;
-
-	if (lapic->header.type != ACPI_MADT_TYPE_LOCAL_APIC ||
-	    !(lapic->lapic_flags & ACPI_MADT_ENABLED)) {
-		kfree(buffer.pointer);
-		return -EINVAL;
-	}
-
-	physid = lapic->id;
-
-	kfree(buffer.pointer);
-	buffer.length = ACPI_ALLOCATE_BUFFER;
-	buffer.pointer = NULL;
-	lapic = NULL;
-
 	if (!alloc_cpumask_var(&tmp_map, GFP_KERNEL))
 		goto out;
 
@@ -689,9 +657,9 @@ out:
 }
 
 /* wrapper to silence section mismatch warning */
-int __ref acpi_map_lsapic(acpi_handle handle, int *pcpu)
+int __ref acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu)
 {
-	return _acpi_map_lsapic(handle, pcpu);
+	return _acpi_map_lsapic(handle, physid, pcpu);
 }
 EXPORT_SYMBOL(acpi_map_lsapic);
 
diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index f89f914cb97e..66c9b702894b 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -181,7 +181,7 @@ static int acpi_processor_hotadd_init(struct acpi_processor *pr)
 	cpu_maps_update_begin();
 	cpu_hotplug_begin();
 
-	ret = acpi_map_lsapic(pr->handle, &pr->id);
+	ret = acpi_map_lsapic(pr->handle, pr->apic_id, &pr->id);
 	if (ret)
 		goto out;
 
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index a5db4aeefa36..3bc74141453f 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -116,7 +116,7 @@ void acpi_numa_arch_fixup(void);
 
 #ifdef CONFIG_ACPI_HOTPLUG_CPU
 /* Arch dependent functions for cpu hotplug support */
-int acpi_map_lsapic(acpi_handle handle, int *pcpu);
+int acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu);
 int acpi_unmap_lsapic(int cpu);
 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
 
-- 
cgit 


From 7e1f85f96def9453ac5322329503e6d43c5ecd01 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@huawei.com>
Date: Mon, 2 Sep 2013 11:57:36 +0800
Subject: x86 / ACPI: simplify _acpi_map_lsapic()

In acpi_register_lapic(), it will generates a new logical cpu
number and maps to the local APIC id, this logical cpu number
can be returned to simplify _acpi_map_lsapic() implementation.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/x86/include/asm/mpspec.h |  2 +-
 arch/x86/kernel/acpi/boot.c   | 50 ++++++++++++++-----------------------------
 arch/x86/kernel/apic/apic.c   |  8 ++++---
 3 files changed, 22 insertions(+), 38 deletions(-)

diff --git a/arch/x86/include/asm/mpspec.h b/arch/x86/include/asm/mpspec.h
index 626cf70082d7..3142a94c7b4b 100644
--- a/arch/x86/include/asm/mpspec.h
+++ b/arch/x86/include/asm/mpspec.h
@@ -94,7 +94,7 @@ static inline void early_reserve_e820_mpc_new(void) { }
 #define default_get_smp_config x86_init_uint_noop
 #endif
 
-void generic_processor_info(int apicid, int version);
+int generic_processor_info(int apicid, int version);
 #ifdef CONFIG_ACPI
 extern void mp_register_ioapic(int id, u32 address, u32 gsi_base);
 extern void mp_override_legacy_irq(u8 bus_irq, u8 polarity, u8 trigger,
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index f6dbb2f5e39f..1f7c0746611f 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -189,24 +189,31 @@ static int __init acpi_parse_madt(struct acpi_table_header *table)
 	return 0;
 }
 
-static void acpi_register_lapic(int id, u8 enabled)
+/**
+ * acpi_register_lapic - register a local apic and generates a logic cpu number
+ * @id: local apic id to register
+ * @enabled: this cpu is enabled or not
+ *
+ * Returns the logic cpu number which maps to the local apic
+ */
+static int acpi_register_lapic(int id, u8 enabled)
 {
 	unsigned int ver = 0;
 
 	if (id >= MAX_LOCAL_APIC) {
 		printk(KERN_INFO PREFIX "skipped apicid that is too big\n");
-		return;
+		return -EINVAL;
 	}
 
 	if (!enabled) {
 		++disabled_cpus;
-		return;
+		return -EINVAL;
 	}
 
 	if (boot_cpu_physical_apicid != -1U)
 		ver = apic_version[boot_cpu_physical_apicid];
 
-	generic_processor_info(id, ver);
+	return generic_processor_info(id, ver);
 }
 
 static int __init
@@ -616,44 +623,19 @@ static void acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
 
 static int _acpi_map_lsapic(acpi_handle handle, int physid, int *pcpu)
 {
-	cpumask_var_t tmp_map, new_map;
 	int cpu;
-	int retval = -ENOMEM;
-
-	if (!alloc_cpumask_var(&tmp_map, GFP_KERNEL))
-		goto out;
 
-	if (!alloc_cpumask_var(&new_map, GFP_KERNEL))
-		goto free_tmp_map;
-
-	cpumask_copy(tmp_map, cpu_present_mask);
-	acpi_register_lapic(physid, ACPI_MADT_ENABLED);
-
-	/*
-	 * If acpi_register_lapic successfully generates a new logical cpu
-	 * number, then the following will get us exactly what was mapped
-	 */
-	cpumask_andnot(new_map, cpu_present_mask, tmp_map);
-	if (cpumask_empty(new_map)) {
-		printk ("Unable to map lapic to logical cpu number\n");
-		retval = -EINVAL;
-		goto free_new_map;
+	cpu = acpi_register_lapic(physid, ACPI_MADT_ENABLED);
+	if (cpu < 0) {
+		pr_info(PREFIX "Unable to map lapic to logical cpu number\n");
+		return cpu;
 	}
 
 	acpi_processor_set_pdc(handle);
-
-	cpu = cpumask_first(new_map);
 	acpi_map_cpu2node(handle, cpu, physid);
 
 	*pcpu = cpu;
-	retval = 0;
-
-free_new_map:
-	free_cpumask_var(new_map);
-free_tmp_map:
-	free_cpumask_var(tmp_map);
-out:
-	return retval;
+	return 0;
 }
 
 /* wrapper to silence section mismatch warning */
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index a7eb82d9b012..ed165d657380 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -2107,7 +2107,7 @@ void disconnect_bsp_APIC(int virt_wire_setup)
 	apic_write(APIC_LVT1, value);
 }
 
-void generic_processor_info(int apicid, int version)
+int generic_processor_info(int apicid, int version)
 {
 	int cpu, max = nr_cpu_ids;
 	bool boot_cpu_detected = physid_isset(boot_cpu_physical_apicid,
@@ -2127,7 +2127,7 @@ void generic_processor_info(int apicid, int version)
 			"  Processor %d/0x%x ignored.\n", max, thiscpu, apicid);
 
 		disabled_cpus++;
-		return;
+		return -ENODEV;
 	}
 
 	if (num_processors >= nr_cpu_ids) {
@@ -2138,7 +2138,7 @@ void generic_processor_info(int apicid, int version)
 			"  Processor %d/0x%x ignored.\n", max, thiscpu, apicid);
 
 		disabled_cpus++;
-		return;
+		return -EINVAL;
 	}
 
 	num_processors++;
@@ -2183,6 +2183,8 @@ void generic_processor_info(int apicid, int version)
 #endif
 	set_cpu_possible(cpu, true);
 	set_cpu_present(cpu, true);
+
+	return cpu;
 }
 
 int hard_smp_processor_id(void)
-- 
cgit 


From 2d4d3e2a06bd25fba52a4693b09ec72d61d250d9 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@huawei.com>
Date: Mon, 2 Sep 2013 11:57:37 +0800
Subject: ACPI / processor: remove some dead code in acpi_processor_get_info()

errata.smp is used by nowhere, so the variable assignment is meanless,
remove it.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_processor.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index 66c9b702894b..5364d029b8e9 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -220,9 +220,6 @@ static int acpi_processor_get_info(struct acpi_device *device)
 	acpi_status status = AE_OK;
 	static int cpu0_initialized;
 
-	if (num_online_cpus() > 1)
-		errata.smp = TRUE;
-
 	acpi_processor_errata(pr);
 
 	/*
-- 
cgit 


From 082e12a05cf317acec2feaf3a78de3f3372feeb3 Mon Sep 17 00:00:00 2001
From: Hanjun Guo <hanjun.guo@linaro.org>
Date: Mon, 2 Sep 2013 11:57:38 +0800
Subject: ACPI / processor: remove unnecessary if (!pr) check

acpi_processor_errata() is only called in acpi_processor_get_info(),
and the argument 'pr' passed to acpi_processor_errata() will never be
NULL, so the if (!pr) check is unnecessary and can be removed.

Since the 'pr' argument is not used by acpi_processor_errata() any more,
so change the argument into void too.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_processor.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index 5364d029b8e9..7ce075008034 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -140,15 +140,11 @@ static int acpi_processor_errata_piix4(struct pci_dev *dev)
 	return 0;
 }
 
-static int acpi_processor_errata(struct acpi_processor *pr)
+static int acpi_processor_errata(void)
 {
 	int result = 0;
 	struct pci_dev *dev = NULL;
 
-
-	if (!pr)
-		return -EINVAL;
-
 	/*
 	 * PIIX4
 	 */
@@ -220,7 +216,7 @@ static int acpi_processor_get_info(struct acpi_device *device)
 	acpi_status status = AE_OK;
 	static int cpu0_initialized;
 
-	acpi_processor_errata(pr);
+	acpi_processor_errata();
 
 	/*
 	 * Check to see if we have bus mastering arbitration control.  This
-- 
cgit 


From 7cc34680c1ab418d5c7fd0f9621515b7a0aa1d66 Mon Sep 17 00:00:00 2001
From: Hanjun Guo <hanjun.guo@linaro.org>
Date: Mon, 2 Sep 2013 11:57:39 +0800
Subject: ACPI / processor: Remove outdated comments

acpi_get_processor_id() can be find nowhere, and the acpi id
is synchronized to APIC id when acpi_get_cpuid() is called, so
the comments can be removed.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_processor.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c
index 7ce075008034..da428929c1a4 100644
--- a/drivers/acpi/acpi_processor.c
+++ b/drivers/acpi/acpi_processor.c
@@ -240,11 +240,6 @@ static int acpi_processor_get_info(struct acpi_device *device)
 			return -ENODEV;
 		}
 
-		/*
-		 * TBD: Synch processor ID (via LAPIC/LSAPIC structures) on SMP.
-		 *      >>> 'acpi_get_processor_id(acpi_id, &id)' in
-		 *      arch/xxx/acpi.c
-		 */
 		pr->acpi_id = object.processor.proc_id;
 	} else {
 		/*
-- 
cgit 


From 1bb25df0fde2cdb2f250a7e7e43c2ec1ba65d0f5 Mon Sep 17 00:00:00 2001
From: Jianguo Wu <wujianguo@huawei.com>
Date: Fri, 30 Aug 2013 09:25:40 +0800
Subject: ACPI / mm: use NUMA_NO_NODE

Use more appropriate NUMA_NO_NODE instead of -1

Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_memhotplug.c | 2 +-
 drivers/acpi/numa.c            | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index 999adb5499c7..c00a3a73409b 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -281,7 +281,7 @@ static void acpi_memory_remove_memory(struct acpi_memory_device *mem_device)
 		if (!info->enabled)
 			continue;
 
-		if (nid < 0)
+		if (nid == NUMA_NO_NODE)
 			nid = memory_add_physaddr_to_nid(info->start_addr);
 
 		acpi_unbind_memory_blocks(info, handle);
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 2e82e5d76930..a2343a1d9e0b 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -73,7 +73,7 @@ int acpi_map_pxm_to_node(int pxm)
 {
 	int node = pxm_to_node_map[pxm];
 
-	if (node < 0) {
+	if (node == NUMA_NO_NODE) {
 		if (nodes_weight(nodes_found_map) >= MAX_NUMNODES)
 			return NUMA_NO_NODE;
 		node = first_unset_node(nodes_found_map);
@@ -334,7 +334,7 @@ int acpi_get_pxm(acpi_handle h)
 
 int acpi_get_node(acpi_handle *handle)
 {
-	int pxm, node = -1;
+	int pxm, node = NUMA_NO_NODE;
 
 	pxm = acpi_get_pxm(handle);
 	if (pxm >= 0 && pxm < MAX_PXM_DOMAINS)
-- 
cgit 


From bf9b59f2571d0d0470f904842a283ac7957438cd Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Fri, 30 Aug 2013 12:30:51 +0200
Subject: ACPI / processor: remove superfluous pr == NULL checks

The only acpi_processor_get_power_info_fadt() user
(acpi_processor_get_power_info()) dereferences pr before calling
the function.

The only acpi_processor_hotplug() user (acpi_cpu_soft_notify())
checks for pr == NULL before calling the function.

The only acpi_processor_cst_has_changed() user (acpi_processor_notify())
checks for pr == NULL before calling the function.

The only acpi_processor_power_init() user (__acpi_processor_start())
dereferences pr before calling the function.

Thus remove superfluous pr == NULL checks from affected functions.

Also:

While at it remove redundant brackets from acpi_processor_hotplug().

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/processor_idle.c | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index f98dd00b51a9..35c8f2bbcc40 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -272,9 +272,6 @@ static void tsc_check_state(int state) { return; }
 static int acpi_processor_get_power_info_fadt(struct acpi_processor *pr)
 {
 
-	if (!pr)
-		return -EINVAL;
-
 	if (!pr->pblk)
 		return -ENODEV;
 
@@ -1076,12 +1073,8 @@ int acpi_processor_hotplug(struct acpi_processor *pr)
 	if (disabled_by_idle_boot_param())
 		return 0;
 
-	if (!pr)
-		return -EINVAL;
-
-	if (nocst) {
+	if (nocst)
 		return -ENODEV;
-	}
 
 	if (!pr->flags.power_setup_done)
 		return -ENODEV;
@@ -1108,9 +1101,6 @@ int acpi_processor_cst_has_changed(struct acpi_processor *pr)
 	if (disabled_by_idle_boot_param())
 		return 0;
 
-	if (!pr)
-		return -EINVAL;
-
 	if (nocst)
 		return -ENODEV;
 
@@ -1183,9 +1173,6 @@ int acpi_processor_power_init(struct acpi_processor *pr)
 		first_run++;
 	}
 
-	if (!pr)
-		return -EINVAL;
-
 	if (acpi_gbl_FADT.cst_control && !nocst) {
 		status =
 		    acpi_os_write_port(acpi_gbl_FADT.smi_command, acpi_gbl_FADT.cst_control, 8);
-- 
cgit 


From 568b6ad834e90351f1a1e6e6cf93bf0e0d8a0eae Mon Sep 17 00:00:00 2001
From: Felipe Contreras <felipe.contreras@gmail.com>
Date: Fri, 30 Aug 2013 16:16:05 -0500
Subject: ACP / fan: trivial style cleanup

Remove label indentation in acpi_fan_add().

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/fan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index 41ade6570bc0..ba3da88cee45 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -168,7 +168,7 @@ static int acpi_fan_add(struct acpi_device *device)
 	       acpi_device_name(device), acpi_device_bid(device),
 	       !device->power.state ? "on" : "off");
 
-      end:
+end:
 	return result;
 }
 
-- 
cgit 


From dedf1e4dfd5477b4315ad451b4be0ff8d9f7e85f Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Thu, 5 Sep 2013 15:05:53 -0600
Subject: ACPI: Write _OSC bit field definitions in hex

Update _OSC definition comments to correspond to the 1-based spec wording
(DWORD 1, etc.)  Write _OSC field #defines as hex to make clear that they
are bits in a 32-bit DWORD, not arbitrary values.  No functional change.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/linux/acpi.h | 54 ++++++++++++++++++++++++++--------------------------
 1 file changed, 27 insertions(+), 27 deletions(-)

diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index a5db4aeefa36..164ba10ddcb3 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -304,39 +304,39 @@ struct acpi_osc_context {
 #define OSC_SUPPORT_TYPE 		1
 #define OSC_CONTROL_TYPE		2
 
-/* _OSC DW0 Definition */
-#define OSC_QUERY_ENABLE		1
-#define OSC_REQUEST_ERROR		2
-#define OSC_INVALID_UUID_ERROR		4
-#define OSC_INVALID_REVISION_ERROR	8
-#define OSC_CAPABILITIES_MASK_ERROR	16
+/* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
+#define OSC_QUERY_ENABLE			0x00000001  /* input */
+#define OSC_REQUEST_ERROR			0x00000002  /* return */
+#define OSC_INVALID_UUID_ERROR			0x00000004  /* return */
+#define OSC_INVALID_REVISION_ERROR		0x00000008  /* return */
+#define OSC_CAPABILITIES_MASK_ERROR		0x00000010  /* return */
 
 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
 
-/* platform-wide _OSC bits */
-#define OSC_SB_PAD_SUPPORT		1
-#define OSC_SB_PPC_OST_SUPPORT		2
-#define OSC_SB_PR3_SUPPORT		4
-#define OSC_SB_HOTPLUG_OST_SUPPORT	8
-#define OSC_SB_APEI_SUPPORT		16
+/* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
+#define OSC_SB_PAD_SUPPORT			0x00000001
+#define OSC_SB_PPC_OST_SUPPORT			0x00000002
+#define OSC_SB_PR3_SUPPORT			0x00000004
+#define OSC_SB_HOTPLUG_OST_SUPPORT		0x00000008
+#define OSC_SB_APEI_SUPPORT			0x00000010
+#define OSC_SB_CPC_SUPPORT			0x00000020
 
 extern bool osc_sb_apei_support_acked;
 
-/* PCI defined _OSC bits */
-/* _OSC DW1 Definition (OS Support Fields) */
-#define OSC_EXT_PCI_CONFIG_SUPPORT		1
-#define OSC_ACTIVE_STATE_PWR_SUPPORT 		2
-#define OSC_CLOCK_PWR_CAPABILITY_SUPPORT	4
-#define OSC_PCI_SEGMENT_GROUPS_SUPPORT		8
-#define OSC_MSI_SUPPORT				16
-#define OSC_PCI_SUPPORT_MASKS			0x1f
-
-/* _OSC DW1 Definition (OS Control Fields) */
-#define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL	1
-#define OSC_SHPC_NATIVE_HP_CONTROL 		2
-#define OSC_PCI_EXPRESS_PME_CONTROL		4
-#define OSC_PCI_EXPRESS_AER_CONTROL		8
-#define OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL	16
+/* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
+#define OSC_EXT_PCI_CONFIG_SUPPORT		0x00000001
+#define OSC_ACTIVE_STATE_PWR_SUPPORT		0x00000002
+#define OSC_CLOCK_PWR_CAPABILITY_SUPPORT	0x00000004
+#define OSC_PCI_SEGMENT_GROUPS_SUPPORT		0x00000008
+#define OSC_MSI_SUPPORT				0x00000010
+#define OSC_PCI_SUPPORT_MASKS			0x0000001f
+
+/* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
+#define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL	0x00000001
+#define OSC_SHPC_NATIVE_HP_CONTROL		0x00000002
+#define OSC_PCI_EXPRESS_PME_CONTROL		0x00000004
+#define OSC_PCI_EXPRESS_AER_CONTROL		0x00000008
+#define OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL	0x00000010
 
 #define OSC_PCI_CONTROL_MASKS 	(OSC_PCI_EXPRESS_NATIVE_HP_CONTROL | 	\
 				OSC_SHPC_NATIVE_HP_CONTROL | 		\
-- 
cgit 


From b938a229c85a567de7dba2d806d9f63a7c90483e Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Thu, 5 Sep 2013 15:05:54 -0600
Subject: ACPI: Rename OSC_QUERY_TYPE to OSC_QUERY_DWORD

OSC_QUERY_TYPE isn't a "type"; it's an index into the _OSC Capabilities
Buffer of DWORDs.  Rename OSC_QUERY_TYPE, OSC_SUPPORT_TYPE, and
OSC_CONTROL_TYPE to OSC_QUERY_DWORD, etc., to make this clear.
No functional change.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/apei/apei-base.c |  6 +++---
 drivers/acpi/bus.c            | 18 +++++++++---------
 drivers/acpi/pci_root.c       | 14 +++++++-------
 include/linux/acpi.h          |  7 ++++---
 4 files changed, 23 insertions(+), 22 deletions(-)

diff --git a/drivers/acpi/apei/apei-base.c b/drivers/acpi/apei/apei-base.c
index 46f80e2c92f7..6d2c49b86b7f 100644
--- a/drivers/acpi/apei/apei-base.c
+++ b/drivers/acpi/apei/apei-base.c
@@ -758,9 +758,9 @@ int apei_osc_setup(void)
 		.cap.pointer	= capbuf,
 	};
 
-	capbuf[OSC_QUERY_TYPE] = OSC_QUERY_ENABLE;
-	capbuf[OSC_SUPPORT_TYPE] = 1;
-	capbuf[OSC_CONTROL_TYPE] = 0;
+	capbuf[OSC_QUERY_DWORD] = OSC_QUERY_ENABLE;
+	capbuf[OSC_SUPPORT_DWORD] = 1;
+	capbuf[OSC_CONTROL_DWORD] = 0;
 
 	if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle))
 	    || ACPI_FAILURE(acpi_run_osc(handle, &context)))
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index b587ec8257b2..fbcfaa682c15 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -255,7 +255,7 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context)
 			acpi_print_osc_error(handle, context,
 				"_OSC invalid revision");
 		if (errors & OSC_CAPABILITIES_MASK_ERROR) {
-			if (((u32 *)context->cap.pointer)[OSC_QUERY_TYPE]
+			if (((u32 *)context->cap.pointer)[OSC_QUERY_DWORD]
 			    & OSC_QUERY_ENABLE)
 				goto out_success;
 			status = AE_SUPPORT;
@@ -295,30 +295,30 @@ static void acpi_bus_osc_support(void)
 	};
 	acpi_handle handle;
 
-	capbuf[OSC_QUERY_TYPE] = OSC_QUERY_ENABLE;
-	capbuf[OSC_SUPPORT_TYPE] = OSC_SB_PR3_SUPPORT; /* _PR3 is in use */
+	capbuf[OSC_QUERY_DWORD] = OSC_QUERY_ENABLE;
+	capbuf[OSC_SUPPORT_DWORD] = OSC_SB_PR3_SUPPORT; /* _PR3 is in use */
 #if defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR) ||\
 			defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR_MODULE)
-	capbuf[OSC_SUPPORT_TYPE] |= OSC_SB_PAD_SUPPORT;
+	capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PAD_SUPPORT;
 #endif
 
 #if defined(CONFIG_ACPI_PROCESSOR) || defined(CONFIG_ACPI_PROCESSOR_MODULE)
-	capbuf[OSC_SUPPORT_TYPE] |= OSC_SB_PPC_OST_SUPPORT;
+	capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PPC_OST_SUPPORT;
 #endif
 
 #ifdef ACPI_HOTPLUG_OST
-	capbuf[OSC_SUPPORT_TYPE] |= OSC_SB_HOTPLUG_OST_SUPPORT;
+	capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_HOTPLUG_OST_SUPPORT;
 #endif
 
 	if (!ghes_disable)
-		capbuf[OSC_SUPPORT_TYPE] |= OSC_SB_APEI_SUPPORT;
+		capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_APEI_SUPPORT;
 	if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle)))
 		return;
 	if (ACPI_SUCCESS(acpi_run_osc(handle, &context))) {
 		u32 *capbuf_ret = context.ret.pointer;
-		if (context.ret.length > OSC_SUPPORT_TYPE)
+		if (context.ret.length > OSC_SUPPORT_DWORD)
 			osc_sb_apei_support_acked =
-				capbuf_ret[OSC_SUPPORT_TYPE] & OSC_SB_APEI_SUPPORT;
+				capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_APEI_SUPPORT;
 		kfree(context.ret.pointer);
 	}
 	/* do we need to check other returned cap? Sounds no */
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index d3874f425653..323afd7ccfbf 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -158,14 +158,14 @@ static acpi_status acpi_pci_query_osc(struct acpi_pci_root *root,
 	support &= OSC_PCI_SUPPORT_MASKS;
 	support |= root->osc_support_set;
 
-	capbuf[OSC_QUERY_TYPE] = OSC_QUERY_ENABLE;
-	capbuf[OSC_SUPPORT_TYPE] = support;
+	capbuf[OSC_QUERY_DWORD] = OSC_QUERY_ENABLE;
+	capbuf[OSC_SUPPORT_DWORD] = support;
 	if (control) {
 		*control &= OSC_PCI_CONTROL_MASKS;
-		capbuf[OSC_CONTROL_TYPE] = *control | root->osc_control_set;
+		capbuf[OSC_CONTROL_DWORD] = *control | root->osc_control_set;
 	} else {
 		/* Run _OSC query only with existing controls. */
-		capbuf[OSC_CONTROL_TYPE] = root->osc_control_set;
+		capbuf[OSC_CONTROL_DWORD] = root->osc_control_set;
 	}
 
 	status = acpi_pci_run_osc(root->device->handle, capbuf, &result);
@@ -357,9 +357,9 @@ acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32 *mask, u32 req)
 		goto out;
 	}
 
-	capbuf[OSC_QUERY_TYPE] = 0;
-	capbuf[OSC_SUPPORT_TYPE] = root->osc_support_set;
-	capbuf[OSC_CONTROL_TYPE] = ctrl;
+	capbuf[OSC_QUERY_DWORD] = 0;
+	capbuf[OSC_SUPPORT_DWORD] = root->osc_support_set;
+	capbuf[OSC_CONTROL_DWORD] = ctrl;
 	status = acpi_pci_run_osc(handle, capbuf, mask);
 	if (ACPI_SUCCESS(status))
 		root->osc_control_set = *mask;
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 164ba10ddcb3..d220d1465d9b 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -300,9 +300,10 @@ struct acpi_osc_context {
 	struct acpi_buffer ret; /* free by caller if success */
 };
 
-#define OSC_QUERY_TYPE			0
-#define OSC_SUPPORT_TYPE 		1
-#define OSC_CONTROL_TYPE		2
+/* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
+#define OSC_QUERY_DWORD				0	/* DWORD 1 */
+#define OSC_SUPPORT_DWORD			1	/* DWORD 2 */
+#define OSC_CONTROL_DWORD			2	/* DWORD 3 */
 
 /* _OSC Capabilities DWORD 1: Query/Control and Error Returns (generic) */
 #define OSC_QUERY_ENABLE			0x00000001  /* input */
-- 
cgit 


From c8678473609b0271ffa0963af82e575312e882cb Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Thu, 5 Sep 2013 15:05:55 -0600
Subject: ACPI: Tidy acpi_run_osc() declarations

Move the acpi_run_osc() prototype next to the related structure and
update comments.  No functional change.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/linux/acpi.h | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index d220d1465d9b..a2f501c0a4f4 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -294,12 +294,14 @@ void __init acpi_nvs_nosave_s3(void);
 #endif /* CONFIG_PM_SLEEP */
 
 struct acpi_osc_context {
-	char *uuid_str; /* uuid string */
+	char *uuid_str;			/* UUID string */
 	int rev;
-	struct acpi_buffer cap; /* arg2/arg3 */
-	struct acpi_buffer ret; /* free by caller if success */
+	struct acpi_buffer cap;		/* list of DWORD capabilities */
+	struct acpi_buffer ret;		/* free by caller if success */
 };
 
+acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
+
 /* Indexes into _OSC Capabilities Buffer (DWORDs 2 & 3 are device-specific) */
 #define OSC_QUERY_DWORD				0	/* DWORD 1 */
 #define OSC_SUPPORT_DWORD			1	/* DWORD 2 */
@@ -312,8 +314,6 @@ struct acpi_osc_context {
 #define OSC_INVALID_REVISION_ERROR		0x00000008  /* return */
 #define OSC_CAPABILITIES_MASK_ERROR		0x00000010  /* return */
 
-acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
-
 /* Platform-Wide Capabilities _OSC: Capabilities DWORD 2: Support Field */
 #define OSC_SB_PAD_SUPPORT			0x00000001
 #define OSC_SB_PPC_OST_SUPPORT			0x00000002
-- 
cgit 


From b4481934167430d82ea9c857cf95276460e4b607 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Thu, 5 Sep 2013 15:22:11 -0600
Subject: ACPI: Remove unused OSC_PCI_NATIVE_HOTPLUG

OSC_PCI_NATIVE_HOTPLUG is completely unused, so remove it.  No functional
change.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/linux/acpi.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index a2f501c0a4f4..ca072e3927a2 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -345,9 +345,6 @@ extern bool osc_sb_apei_support_acked;
 				OSC_PCI_EXPRESS_AER_CONTROL |		\
 				OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL)
 
-#define OSC_PCI_NATIVE_HOTPLUG	(OSC_PCI_EXPRESS_NATIVE_HP_CONTROL |	\
-				OSC_SHPC_NATIVE_HP_CONTROL)
-
 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
 					     u32 *mask, u32 req);
 
-- 
cgit 


From 335b15097d571007b125eb9fe4ef1f84e61bd31d Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Thu, 5 Sep 2013 15:24:24 -0600
Subject: ACPI: Write OSC_PCI_CONTROL_MASKS like OSC_PCI_SUPPORT_MASKS

We write OSC_PCI_SUPPORT_MASKS as a simple 0x1f, so do the same
for OSC_PCI_CONTROL_MASKS.  No functional change.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/linux/acpi.h | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index ca072e3927a2..bb4e7701b26b 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -338,12 +338,7 @@ extern bool osc_sb_apei_support_acked;
 #define OSC_PCI_EXPRESS_PME_CONTROL		0x00000004
 #define OSC_PCI_EXPRESS_AER_CONTROL		0x00000008
 #define OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL	0x00000010
-
-#define OSC_PCI_CONTROL_MASKS 	(OSC_PCI_EXPRESS_NATIVE_HP_CONTROL | 	\
-				OSC_SHPC_NATIVE_HP_CONTROL | 		\
-				OSC_PCI_EXPRESS_PME_CONTROL |		\
-				OSC_PCI_EXPRESS_AER_CONTROL |		\
-				OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL)
+#define OSC_PCI_CONTROL_MASKS			0x0000001f
 
 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
 					     u32 *mask, u32 req);
-- 
cgit 


From 7dab9ef4f0823072a3c9afdb3b373c9f2f38848b Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Thu, 5 Sep 2013 15:07:39 -0600
Subject: PCI/ACPI: Name _OSC #defines more consistently

Make PCI Host Bridge _OSC #defines more consistent.  No functional change.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/pci_root.c          | 19 +++++++++----------
 drivers/pci/hotplug/acpi_pcihp.c |  2 +-
 drivers/pci/hotplug/shpchp.h     |  2 +-
 include/linux/acpi.h             | 12 ++++++------
 4 files changed, 17 insertions(+), 18 deletions(-)

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 323afd7ccfbf..28dd55509789 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -49,10 +49,10 @@ static int acpi_pci_root_add(struct acpi_device *device,
 			     const struct acpi_device_id *not_used);
 static void acpi_pci_root_remove(struct acpi_device *device);
 
-#define ACPI_PCIE_REQ_SUPPORT (OSC_EXT_PCI_CONFIG_SUPPORT \
-				| OSC_ACTIVE_STATE_PWR_SUPPORT \
-				| OSC_CLOCK_PWR_CAPABILITY_SUPPORT \
-				| OSC_MSI_SUPPORT)
+#define ACPI_PCIE_REQ_SUPPORT (OSC_PCI_EXT_CONFIG_SUPPORT \
+				| OSC_PCI_ASPM_SUPPORT \
+				| OSC_PCI_CLOCK_PM_SUPPORT \
+				| OSC_PCI_MSI_SUPPORT)
 
 static const struct acpi_device_id root_device_ids[] = {
 	{"PNP0A03", 0},
@@ -439,13 +439,12 @@ static int acpi_pci_root_add(struct acpi_device *device,
 	acpi_pci_osc_support(root, flags);
 
 	if (pci_ext_cfg_avail())
-		flags |= OSC_EXT_PCI_CONFIG_SUPPORT;
+		flags |= OSC_PCI_EXT_CONFIG_SUPPORT;
 	if (pcie_aspm_support_enabled()) {
-		flags |= OSC_ACTIVE_STATE_PWR_SUPPORT |
-		OSC_CLOCK_PWR_CAPABILITY_SUPPORT;
+		flags |= OSC_PCI_ASPM_SUPPORT | OSC_PCI_CLOCK_PM_SUPPORT;
 	}
 	if (pci_msi_enabled())
-		flags |= OSC_MSI_SUPPORT;
+		flags |= OSC_PCI_MSI_SUPPORT;
 	if (flags != base_flags) {
 		status = acpi_pci_osc_support(root, flags);
 		if (ACPI_FAILURE(status)) {
@@ -458,7 +457,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
 
 	if (!pcie_ports_disabled
 	    && (flags & ACPI_PCIE_REQ_SUPPORT) == ACPI_PCIE_REQ_SUPPORT) {
-		flags = OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL
+		flags = OSC_PCI_EXPRESS_CAPABILITY_CONTROL
 			| OSC_PCI_EXPRESS_NATIVE_HP_CONTROL
 			| OSC_PCI_EXPRESS_PME_CONTROL;
 
@@ -474,7 +473,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
 			"Requesting ACPI _OSC control (0x%02x)\n", flags);
 
 		status = acpi_pci_osc_control_set(handle, &flags,
-				       OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL);
+				       OSC_PCI_EXPRESS_CAPABILITY_CONTROL);
 		if (ACPI_SUCCESS(status)) {
 			dev_info(&device->dev,
 				"ACPI _OSC control (0x%02x) granted\n", flags);
diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c
index 2a47e82821da..f8140164ec0b 100644
--- a/drivers/pci/hotplug/acpi_pcihp.c
+++ b/drivers/pci/hotplug/acpi_pcihp.c
@@ -338,7 +338,7 @@ int acpi_get_hp_hw_control_from_firmware(struct pci_dev *pdev, u32 flags)
 	acpi_handle chandle, handle;
 	struct acpi_buffer string = { ACPI_ALLOCATE_BUFFER, NULL };
 
-	flags &= OSC_SHPC_NATIVE_HP_CONTROL;
+	flags &= OSC_PCI_SHPC_NATIVE_HP_CONTROL;
 	if (!flags) {
 		err("Invalid flags %u specified!\n", flags);
 		return -EINVAL;
diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h
index e260f207a90e..d876e4b3c6a9 100644
--- a/drivers/pci/hotplug/shpchp.h
+++ b/drivers/pci/hotplug/shpchp.h
@@ -191,7 +191,7 @@ static inline const char *slot_name(struct slot *slot)
 #include <linux/pci-acpi.h>
 static inline int get_hp_hw_control_from_firmware(struct pci_dev *dev)
 {
-	u32 flags = OSC_SHPC_NATIVE_HP_CONTROL;
+	u32 flags = OSC_PCI_SHPC_NATIVE_HP_CONTROL;
 	return acpi_get_hp_hw_control_from_firmware(dev, flags);
 }
 #else
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index bb4e7701b26b..e2e52cf53224 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -325,19 +325,19 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
 extern bool osc_sb_apei_support_acked;
 
 /* PCI Host Bridge _OSC: Capabilities DWORD 2: Support Field */
-#define OSC_EXT_PCI_CONFIG_SUPPORT		0x00000001
-#define OSC_ACTIVE_STATE_PWR_SUPPORT		0x00000002
-#define OSC_CLOCK_PWR_CAPABILITY_SUPPORT	0x00000004
+#define OSC_PCI_EXT_CONFIG_SUPPORT		0x00000001
+#define OSC_PCI_ASPM_SUPPORT			0x00000002
+#define OSC_PCI_CLOCK_PM_SUPPORT		0x00000004
 #define OSC_PCI_SEGMENT_GROUPS_SUPPORT		0x00000008
-#define OSC_MSI_SUPPORT				0x00000010
+#define OSC_PCI_MSI_SUPPORT			0x00000010
 #define OSC_PCI_SUPPORT_MASKS			0x0000001f
 
 /* PCI Host Bridge _OSC: Capabilities DWORD 3: Control Field */
 #define OSC_PCI_EXPRESS_NATIVE_HP_CONTROL	0x00000001
-#define OSC_SHPC_NATIVE_HP_CONTROL		0x00000002
+#define OSC_PCI_SHPC_NATIVE_HP_CONTROL		0x00000002
 #define OSC_PCI_EXPRESS_PME_CONTROL		0x00000004
 #define OSC_PCI_EXPRESS_AER_CONTROL		0x00000008
-#define OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL	0x00000010
+#define OSC_PCI_EXPRESS_CAPABILITY_CONTROL	0x00000010
 #define OSC_PCI_CONTROL_MASKS			0x0000001f
 
 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
-- 
cgit 


From 4ffe6e54b0ce259d254e7740a7a4a99dad14a484 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Thu, 5 Sep 2013 15:07:41 -0600
Subject: PCI/ACPI: Drop unnecessary _OSC existence tests

There's no need to check whether _OSC exists here; we eventually
call acpi_evaluate_object(..., "_OSC", ...), and that will fail
gracefully if _OSC doesn't exist.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/pci_root.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 28dd55509789..cc87cc4fea0e 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -180,11 +180,7 @@ static acpi_status acpi_pci_query_osc(struct acpi_pci_root *root,
 static acpi_status acpi_pci_osc_support(struct acpi_pci_root *root, u32 flags)
 {
 	acpi_status status;
-	acpi_handle tmp;
 
-	status = acpi_get_handle(root->device->handle, "_OSC", &tmp);
-	if (ACPI_FAILURE(status))
-		return status;
 	mutex_lock(&osc_lock);
 	status = acpi_pci_query_osc(root, flags, NULL);
 	mutex_unlock(&osc_lock);
@@ -316,9 +312,8 @@ EXPORT_SYMBOL_GPL(acpi_get_pci_dev);
 acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32 *mask, u32 req)
 {
 	struct acpi_pci_root *root;
-	acpi_status status;
+	acpi_status status = AE_OK;
 	u32 ctrl, capbuf[3];
-	acpi_handle tmp;
 
 	if (!mask)
 		return AE_BAD_PARAMETER;
@@ -331,10 +326,6 @@ acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32 *mask, u32 req)
 	if (!root)
 		return AE_NOT_EXIST;
 
-	status = acpi_get_handle(handle, "_OSC", &tmp);
-	if (ACPI_FAILURE(status))
-		return status;
-
 	mutex_lock(&osc_lock);
 
 	*mask = ctrl | root->osc_control_set;
-- 
cgit 


From 3e43abb012d45dc284ef9a0fb0cea0fb004b5607 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Thu, 5 Sep 2013 15:07:41 -0600
Subject: PCI/ACPI: Move _OSC stuff from acpi_pci_root_add() to
 negotiate_os_control()

This doesn't change any of the _OSC code; it just moves it out into
a new function so it doesn't clutter acpi_pci_root_add() so much.  This
also enables future simplifications.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/pci_root.c | 132 ++++++++++++++++++++++++++----------------------
 1 file changed, 71 insertions(+), 61 deletions(-)

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index cc87cc4fea0e..3e57f104e09a 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -360,67 +360,13 @@ out:
 }
 EXPORT_SYMBOL(acpi_pci_osc_control_set);
 
-static int acpi_pci_root_add(struct acpi_device *device,
-			     const struct acpi_device_id *not_used)
+static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
+				 int *clear_aspm)
 {
-	unsigned long long segment, bus;
-	acpi_status status;
-	int result;
-	struct acpi_pci_root *root;
 	u32 flags, base_flags;
+	acpi_status status;
+	struct acpi_device *device = root->device;
 	acpi_handle handle = device->handle;
-	bool no_aspm = false, clear_aspm = false;
-
-	root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
-	if (!root)
-		return -ENOMEM;
-
-	segment = 0;
-	status = acpi_evaluate_integer(handle, METHOD_NAME__SEG, NULL,
-				       &segment);
-	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
-		dev_err(&device->dev,  "can't evaluate _SEG\n");
-		result = -ENODEV;
-		goto end;
-	}
-
-	/* Check _CRS first, then _BBN.  If no _BBN, default to zero. */
-	root->secondary.flags = IORESOURCE_BUS;
-	status = try_get_root_bridge_busnr(handle, &root->secondary);
-	if (ACPI_FAILURE(status)) {
-		/*
-		 * We need both the start and end of the downstream bus range
-		 * to interpret _CBA (MMCONFIG base address), so it really is
-		 * supposed to be in _CRS.  If we don't find it there, all we
-		 * can do is assume [_BBN-0xFF] or [0-0xFF].
-		 */
-		root->secondary.end = 0xFF;
-		dev_warn(&device->dev,
-			 FW_BUG "no secondary bus range in _CRS\n");
-		status = acpi_evaluate_integer(handle, METHOD_NAME__BBN,
-					       NULL, &bus);
-		if (ACPI_SUCCESS(status))
-			root->secondary.start = bus;
-		else if (status == AE_NOT_FOUND)
-			root->secondary.start = 0;
-		else {
-			dev_err(&device->dev, "can't evaluate _BBN\n");
-			result = -ENODEV;
-			goto end;
-		}
-	}
-
-	root->device = device;
-	root->segment = segment & 0xFFFF;
-	strcpy(acpi_device_name(device), ACPI_PCI_ROOT_DEVICE_NAME);
-	strcpy(acpi_device_class(device), ACPI_PCI_ROOT_CLASS);
-	device->driver_data = root;
-
-	pr_info(PREFIX "%s [%s] (domain %04x %pR)\n",
-	       acpi_device_name(device), acpi_device_bid(device),
-	       root->segment, &root->secondary);
-
-	root->mcfg_addr = acpi_pci_root_get_mcfg_addr(handle);
 
 	/*
 	 * All supported architectures that use ACPI have support for
@@ -441,7 +387,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
 		if (ACPI_FAILURE(status)) {
 			dev_info(&device->dev, "ACPI _OSC support "
 				"notification failed, disabling PCIe ASPM\n");
-			no_aspm = true;
+			*no_aspm = 1;
 			flags = base_flags;
 		}
 	}
@@ -473,7 +419,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
 				 * We have ASPM control, but the FADT indicates
 				 * that it's unsupported. Clear it.
 				 */
-				clear_aspm = true;
+				*clear_aspm = 1;
 			}
 		} else {
 			dev_info(&device->dev,
@@ -489,13 +435,77 @@ static int acpi_pci_root_add(struct acpi_device *device,
 			 * flag here, to defer the action until after the ACPI
 			 * root scan.
 			 */
-			no_aspm = true;
+			*no_aspm = 1;
 		}
 	} else {
 		dev_info(&device->dev,
 			 "Unable to request _OSC control "
 			 "(_OSC support mask: 0x%02x)\n", flags);
 	}
+}
+
+static int acpi_pci_root_add(struct acpi_device *device,
+			     const struct acpi_device_id *not_used)
+{
+	unsigned long long segment, bus;
+	acpi_status status;
+	int result;
+	struct acpi_pci_root *root;
+	acpi_handle handle = device->handle;
+	int no_aspm = 0, clear_aspm = 0;
+
+	root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL);
+	if (!root)
+		return -ENOMEM;
+
+	segment = 0;
+	status = acpi_evaluate_integer(handle, METHOD_NAME__SEG, NULL,
+				       &segment);
+	if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
+		dev_err(&device->dev,  "can't evaluate _SEG\n");
+		result = -ENODEV;
+		goto end;
+	}
+
+	/* Check _CRS first, then _BBN.  If no _BBN, default to zero. */
+	root->secondary.flags = IORESOURCE_BUS;
+	status = try_get_root_bridge_busnr(handle, &root->secondary);
+	if (ACPI_FAILURE(status)) {
+		/*
+		 * We need both the start and end of the downstream bus range
+		 * to interpret _CBA (MMCONFIG base address), so it really is
+		 * supposed to be in _CRS.  If we don't find it there, all we
+		 * can do is assume [_BBN-0xFF] or [0-0xFF].
+		 */
+		root->secondary.end = 0xFF;
+		dev_warn(&device->dev,
+			 FW_BUG "no secondary bus range in _CRS\n");
+		status = acpi_evaluate_integer(handle, METHOD_NAME__BBN,
+					       NULL, &bus);
+		if (ACPI_SUCCESS(status))
+			root->secondary.start = bus;
+		else if (status == AE_NOT_FOUND)
+			root->secondary.start = 0;
+		else {
+			dev_err(&device->dev, "can't evaluate _BBN\n");
+			result = -ENODEV;
+			goto end;
+		}
+	}
+
+	root->device = device;
+	root->segment = segment & 0xFFFF;
+	strcpy(acpi_device_name(device), ACPI_PCI_ROOT_DEVICE_NAME);
+	strcpy(acpi_device_class(device), ACPI_PCI_ROOT_CLASS);
+	device->driver_data = root;
+
+	pr_info(PREFIX "%s [%s] (domain %04x %pR)\n",
+	       acpi_device_name(device), acpi_device_bid(device),
+	       root->segment, &root->secondary);
+
+	root->mcfg_addr = acpi_pci_root_get_mcfg_addr(handle);
+
+	negotiate_os_control(root, &no_aspm, &clear_aspm);
 
 	/*
 	 * TBD: Need PCI interface for enumeration/configuration of roots.
-- 
cgit 


From b8eb67fcc4548b9f0d00bbfd1c0c8f72d8018900 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Thu, 5 Sep 2013 15:07:42 -0600
Subject: PCI/ACPI: Split _OSC "support" and "control" flags into separate
 variables

Previously we used "flags" for both:

  - the bitmask of features we support (segments, ASPM, MSI, etc.), and
  - the bitmask of features we want to control (native hotplug, AER, etc.)

To reduce confusion, this patch splits this into two variables:
"support" is the bitmask of features we support, and "control" is the
bitmask of features we want to control.  No functional change.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/pci_root.c | 35 ++++++++++++++++++-----------------
 1 file changed, 18 insertions(+), 17 deletions(-)

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 3e57f104e09a..3e06d4e179ec 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -363,7 +363,7 @@ EXPORT_SYMBOL(acpi_pci_osc_control_set);
 static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
 				 int *clear_aspm)
 {
-	u32 flags, base_flags;
+	u32 support, base_support, control;
 	acpi_status status;
 	struct acpi_device *device = root->device;
 	acpi_handle handle = device->handle;
@@ -372,29 +372,29 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
 	 * All supported architectures that use ACPI have support for
 	 * PCI domains, so we indicate this in _OSC support capabilities.
 	 */
-	flags = base_flags = OSC_PCI_SEGMENT_GROUPS_SUPPORT;
-	acpi_pci_osc_support(root, flags);
+	support = base_support = OSC_PCI_SEGMENT_GROUPS_SUPPORT;
+	acpi_pci_osc_support(root, support);
 
 	if (pci_ext_cfg_avail())
-		flags |= OSC_PCI_EXT_CONFIG_SUPPORT;
+		support |= OSC_PCI_EXT_CONFIG_SUPPORT;
 	if (pcie_aspm_support_enabled()) {
-		flags |= OSC_PCI_ASPM_SUPPORT | OSC_PCI_CLOCK_PM_SUPPORT;
+		support |= OSC_PCI_ASPM_SUPPORT | OSC_PCI_CLOCK_PM_SUPPORT;
 	}
 	if (pci_msi_enabled())
-		flags |= OSC_PCI_MSI_SUPPORT;
-	if (flags != base_flags) {
-		status = acpi_pci_osc_support(root, flags);
+		support |= OSC_PCI_MSI_SUPPORT;
+	if (support != base_support) {
+		status = acpi_pci_osc_support(root, support);
 		if (ACPI_FAILURE(status)) {
 			dev_info(&device->dev, "ACPI _OSC support "
 				"notification failed, disabling PCIe ASPM\n");
 			*no_aspm = 1;
-			flags = base_flags;
+			support = base_support;
 		}
 	}
 
 	if (!pcie_ports_disabled
-	    && (flags & ACPI_PCIE_REQ_SUPPORT) == ACPI_PCIE_REQ_SUPPORT) {
-		flags = OSC_PCI_EXPRESS_CAPABILITY_CONTROL
+	    && (support & ACPI_PCIE_REQ_SUPPORT) == ACPI_PCIE_REQ_SUPPORT) {
+		control = OSC_PCI_EXPRESS_CAPABILITY_CONTROL
 			| OSC_PCI_EXPRESS_NATIVE_HP_CONTROL
 			| OSC_PCI_EXPRESS_PME_CONTROL;
 
@@ -403,17 +403,18 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
 				dev_dbg(&device->dev,
 					"PCIe errors handled by BIOS.\n");
 			else
-				flags |= OSC_PCI_EXPRESS_AER_CONTROL;
+				control |= OSC_PCI_EXPRESS_AER_CONTROL;
 		}
 
 		dev_info(&device->dev,
-			"Requesting ACPI _OSC control (0x%02x)\n", flags);
+			"Requesting ACPI _OSC control (0x%02x)\n", control);
 
-		status = acpi_pci_osc_control_set(handle, &flags,
+		status = acpi_pci_osc_control_set(handle, &control,
 				       OSC_PCI_EXPRESS_CAPABILITY_CONTROL);
 		if (ACPI_SUCCESS(status)) {
 			dev_info(&device->dev,
-				"ACPI _OSC control (0x%02x) granted\n", flags);
+				"ACPI _OSC control (0x%02x) granted\n",
+				control);
 			if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM) {
 				/*
 				 * We have ASPM control, but the FADT indicates
@@ -425,7 +426,7 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
 			dev_info(&device->dev,
 				"ACPI _OSC request failed (%s), "
 				"returned control mask: 0x%02x\n",
-				acpi_format_exception(status), flags);
+				acpi_format_exception(status), control);
 			dev_info(&device->dev,
 				 "ACPI _OSC control for PCIe not granted, disabling ASPM\n");
 			/*
@@ -440,7 +441,7 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
 	} else {
 		dev_info(&device->dev,
 			 "Unable to request _OSC control "
-			 "(_OSC support mask: 0x%02x)\n", flags);
+			 "(_OSC support mask: 0x%02x)\n", support);
 	}
 }
 
-- 
cgit 


From 1b2a7be60eaaf17bc88368d748471dd70e40befd Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Thu, 5 Sep 2013 15:07:42 -0600
Subject: PCI/ACPI: Run _OSC only once for OSPM feature support

Previously, we ran _OSC once to tell the platform that we support
PCI Segment Groups, then we ran it again if we supported any additional
features (ASPM, MSI, or extended config space).  I don't think it's
necessary to run it twice, since we can easily build the complete
mask of features we support before running _OSC the first time.

We run _OSC again later when requesting control of PCIe features;
that's unaffected by this change.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/pci_root.c | 19 +++++++------------
 1 file changed, 7 insertions(+), 12 deletions(-)

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 3e06d4e179ec..0e2004100c44 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -373,23 +373,18 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
 	 * PCI domains, so we indicate this in _OSC support capabilities.
 	 */
 	support = base_support = OSC_PCI_SEGMENT_GROUPS_SUPPORT;
-	acpi_pci_osc_support(root, support);
-
 	if (pci_ext_cfg_avail())
 		support |= OSC_PCI_EXT_CONFIG_SUPPORT;
-	if (pcie_aspm_support_enabled()) {
+	if (pcie_aspm_support_enabled())
 		support |= OSC_PCI_ASPM_SUPPORT | OSC_PCI_CLOCK_PM_SUPPORT;
-	}
 	if (pci_msi_enabled())
 		support |= OSC_PCI_MSI_SUPPORT;
-	if (support != base_support) {
-		status = acpi_pci_osc_support(root, support);
-		if (ACPI_FAILURE(status)) {
-			dev_info(&device->dev, "ACPI _OSC support "
-				"notification failed, disabling PCIe ASPM\n");
-			*no_aspm = 1;
-			support = base_support;
-		}
+	status = acpi_pci_osc_support(root, support);
+	if (ACPI_FAILURE(status)) {
+		dev_info(&device->dev, "ACPI _OSC support "
+			"notification failed, disabling PCIe ASPM\n");
+		*no_aspm = 1;
+		support = base_support;
 	}
 
 	if (!pcie_ports_disabled
-- 
cgit 


From 65afe91622c456560e20d57a779b807c20822e81 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Thu, 5 Sep 2013 15:07:43 -0600
Subject: PCI/ACPI: Skip _OSC control tests if _OSC support call failed

If the _OSC support notification fails, we will never request control
(because "support == OSC_PCI_SEGMENT_GROUPS_SUPPORT", which doesn't include
all the features in ACPI_PCIE_REQ_SUPPORT), so we can return early to
simplify the code.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/pci_root.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 0e2004100c44..67cc43a134ad 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -363,7 +363,7 @@ EXPORT_SYMBOL(acpi_pci_osc_control_set);
 static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
 				 int *clear_aspm)
 {
-	u32 support, base_support, control;
+	u32 support, control;
 	acpi_status status;
 	struct acpi_device *device = root->device;
 	acpi_handle handle = device->handle;
@@ -372,7 +372,7 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
 	 * All supported architectures that use ACPI have support for
 	 * PCI domains, so we indicate this in _OSC support capabilities.
 	 */
-	support = base_support = OSC_PCI_SEGMENT_GROUPS_SUPPORT;
+	support = OSC_PCI_SEGMENT_GROUPS_SUPPORT;
 	if (pci_ext_cfg_avail())
 		support |= OSC_PCI_EXT_CONFIG_SUPPORT;
 	if (pcie_aspm_support_enabled())
@@ -381,10 +381,10 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
 		support |= OSC_PCI_MSI_SUPPORT;
 	status = acpi_pci_osc_support(root, support);
 	if (ACPI_FAILURE(status)) {
-		dev_info(&device->dev, "ACPI _OSC support "
-			"notification failed, disabling PCIe ASPM\n");
+		dev_info(&device->dev, "_OSC failed (%s); disabling ASPM\n",
+			 acpi_format_exception(status));
 		*no_aspm = 1;
-		support = base_support;
+		return;
 	}
 
 	if (!pcie_ports_disabled
-- 
cgit 


From 43613a1fac0eec78de14fecc9de184e1052abac7 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Thu, 5 Sep 2013 15:07:43 -0600
Subject: PCI/ACPI: Separate out _OSC "PCIe port services disabled" path

Test "pcie_ports_disabled" separately so we can give a better message.
Previously we said "Unable to request _OSC control..."; now we'll
say "PCIe port services disabled; not requesting _OSC control".

"pcie_ports_disabled" is true when CONFIG_PCIEPORTBUS=n or we boot
with "pcie_ports=compat".

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/pci_root.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 67cc43a134ad..68e5a187e784 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -387,8 +387,12 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
 		return;
 	}
 
-	if (!pcie_ports_disabled
-	    && (support & ACPI_PCIE_REQ_SUPPORT) == ACPI_PCIE_REQ_SUPPORT) {
+	if (pcie_ports_disabled) {
+		dev_info(&device->dev, "PCIe port services disabled; not requesting _OSC control\n");
+		return;
+	}
+
+	if ((support & ACPI_PCIE_REQ_SUPPORT) == ACPI_PCIE_REQ_SUPPORT) {
 		control = OSC_PCI_EXPRESS_CAPABILITY_CONTROL
 			| OSC_PCI_EXPRESS_NATIVE_HP_CONTROL
 			| OSC_PCI_EXPRESS_PME_CONTROL;
-- 
cgit 


From de18966228ed4b42393ecbe83ba20ff3db78bfdc Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Thu, 5 Sep 2013 15:50:52 -0600
Subject: PCI/ACPI: Separate out _OSC "we don't support enough services" path

Test the services we support (extended config space, ASPM, MSI) separately
so we can give a better message.  Previously we said "Unable to request
_OSC control..."; now we'll say "we support %#02x but %#02x are required".

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/pci_root.c | 84 ++++++++++++++++++++++++-------------------------
 1 file changed, 42 insertions(+), 42 deletions(-)

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 68e5a187e784..65aefcf78552 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -392,55 +392,55 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
 		return;
 	}
 
-	if ((support & ACPI_PCIE_REQ_SUPPORT) == ACPI_PCIE_REQ_SUPPORT) {
-		control = OSC_PCI_EXPRESS_CAPABILITY_CONTROL
-			| OSC_PCI_EXPRESS_NATIVE_HP_CONTROL
-			| OSC_PCI_EXPRESS_PME_CONTROL;
-
-		if (pci_aer_available()) {
-			if (aer_acpi_firmware_first())
-				dev_dbg(&device->dev,
-					"PCIe errors handled by BIOS.\n");
-			else
-				control |= OSC_PCI_EXPRESS_AER_CONTROL;
-		}
+	if ((support & ACPI_PCIE_REQ_SUPPORT) != ACPI_PCIE_REQ_SUPPORT) {
+		dev_info(&device->dev, "Not requesting _OSC control (we support %#02x but %#02x are required)\n",
+			 support, ACPI_PCIE_REQ_SUPPORT);
+		return;
+	}
+
+	control = OSC_PCI_EXPRESS_CAPABILITY_CONTROL
+		| OSC_PCI_EXPRESS_NATIVE_HP_CONTROL
+		| OSC_PCI_EXPRESS_PME_CONTROL;
+
+	if (pci_aer_available()) {
+		if (aer_acpi_firmware_first())
+			dev_dbg(&device->dev,
+				"PCIe errors handled by BIOS.\n");
+		else
+			control |= OSC_PCI_EXPRESS_AER_CONTROL;
+	}
 
+	dev_info(&device->dev,
+		 "Requesting ACPI _OSC control (0x%02x)\n", control);
+
+	status = acpi_pci_osc_control_set(handle, &control,
+					  OSC_PCI_EXPRESS_CAPABILITY_CONTROL);
+	if (ACPI_SUCCESS(status)) {
 		dev_info(&device->dev,
-			"Requesting ACPI _OSC control (0x%02x)\n", control);
-
-		status = acpi_pci_osc_control_set(handle, &control,
-				       OSC_PCI_EXPRESS_CAPABILITY_CONTROL);
-		if (ACPI_SUCCESS(status)) {
-			dev_info(&device->dev,
-				"ACPI _OSC control (0x%02x) granted\n",
-				control);
-			if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM) {
-				/*
-				 * We have ASPM control, but the FADT indicates
-				 * that it's unsupported. Clear it.
-				 */
-				*clear_aspm = 1;
-			}
-		} else {
-			dev_info(&device->dev,
-				"ACPI _OSC request failed (%s), "
-				"returned control mask: 0x%02x\n",
-				acpi_format_exception(status), control);
-			dev_info(&device->dev,
-				 "ACPI _OSC control for PCIe not granted, disabling ASPM\n");
+			 "ACPI _OSC control (0x%02x) granted\n",
+			 control);
+		if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM) {
 			/*
-			 * We want to disable ASPM here, but aspm_disabled
-			 * needs to remain in its state from boot so that we
-			 * properly handle PCIe 1.1 devices.  So we set this
-			 * flag here, to defer the action until after the ACPI
-			 * root scan.
+			 * We have ASPM control, but the FADT indicates
+			 * that it's unsupported. Clear it.
 			 */
-			*no_aspm = 1;
+			*clear_aspm = 1;
 		}
 	} else {
 		dev_info(&device->dev,
-			 "Unable to request _OSC control "
-			 "(_OSC support mask: 0x%02x)\n", support);
+			"ACPI _OSC request failed (%s), "
+			"returned control mask: 0x%02x\n",
+			acpi_format_exception(status), control);
+		dev_info(&device->dev,
+			 "ACPI _OSC control for PCIe not granted, disabling ASPM\n");
+		/*
+		 * We want to disable ASPM here, but aspm_disabled
+		 * needs to remain in its state from boot so that we
+		 * properly handle PCIe 1.1 devices.  So we set this
+		 * flag here, to defer the action until after the ACPI
+		 * root scan.
+		 */
+		*no_aspm = 1;
 	}
 }
 
-- 
cgit 


From 955f14b4ed0648da12f0a7011f94150b8982a5c2 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Thu, 5 Sep 2013 15:07:45 -0600
Subject: PCI/ACPI: Decode _OSC bitmasks symbolically

This updates _OSC-related messages to be more human-readable.  We now always
show the features we declare support for (this was previously invisible) as
well as the features we are granted control of.

Typical changes:

  -acpi PNP0A08:00: Requesting ACPI _OSC control (0x1d)
  -acpi PNP0A08:00: ACPI _OSC control (0x1d) granted
  +acpi PNP0A08:00: _OSC: OS supports [ExtendedConfig ASPM ClockPM Segments MSI]
  +acpi PNP0A08:00: _OSC: OS now controls [PCIeHotplug PME AER PCIeCapability]

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/pci_root.c | 84 +++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 67 insertions(+), 17 deletions(-)

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 65aefcf78552..924ad92852c1 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -127,6 +127,55 @@ static acpi_status try_get_root_bridge_busnr(acpi_handle handle,
 	return AE_OK;
 }
 
+struct pci_osc_bit_struct {
+	u32 bit;
+	char *desc;
+};
+
+static struct pci_osc_bit_struct pci_osc_support_bit[] = {
+	{ OSC_PCI_EXT_CONFIG_SUPPORT, "ExtendedConfig" },
+	{ OSC_PCI_ASPM_SUPPORT, "ASPM" },
+	{ OSC_PCI_CLOCK_PM_SUPPORT, "ClockPM" },
+	{ OSC_PCI_SEGMENT_GROUPS_SUPPORT, "Segments" },
+	{ OSC_PCI_MSI_SUPPORT, "MSI" },
+};
+
+static struct pci_osc_bit_struct pci_osc_control_bit[] = {
+	{ OSC_PCI_EXPRESS_NATIVE_HP_CONTROL, "PCIeHotplug" },
+	{ OSC_PCI_SHPC_NATIVE_HP_CONTROL, "SHPCHotplug" },
+	{ OSC_PCI_EXPRESS_PME_CONTROL, "PME" },
+	{ OSC_PCI_EXPRESS_AER_CONTROL, "AER" },
+	{ OSC_PCI_EXPRESS_CAPABILITY_CONTROL, "PCIeCapability" },
+};
+
+static void decode_osc_bits(struct acpi_pci_root *root, char *msg, u32 word,
+			    struct pci_osc_bit_struct *table, int size)
+{
+	char buf[80];
+	int i, len = 0;
+	struct pci_osc_bit_struct *entry;
+
+	buf[0] = '\0';
+	for (i = 0, entry = table; i < size; i++, entry++)
+		if (word & entry->bit)
+			len += snprintf(buf + len, sizeof(buf) - len, "%s%s",
+					len ? " " : "", entry->desc);
+
+	dev_info(&root->device->dev, "_OSC: %s [%s]\n", msg, buf);
+}
+
+static void decode_osc_support(struct acpi_pci_root *root, char *msg, u32 word)
+{
+	decode_osc_bits(root, msg, word, pci_osc_support_bit,
+			ARRAY_SIZE(pci_osc_support_bit));
+}
+
+static void decode_osc_control(struct acpi_pci_root *root, char *msg, u32 word)
+{
+	decode_osc_bits(root, msg, word, pci_osc_control_bit,
+			ARRAY_SIZE(pci_osc_control_bit));
+}
+
 static u8 pci_osc_uuid_str[] = "33DB4D5B-1FF7-401C-9657-7441C03DD766";
 
 static acpi_status acpi_pci_run_osc(acpi_handle handle,
@@ -340,10 +389,14 @@ acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32 *mask, u32 req)
 			goto out;
 		if (ctrl == *mask)
 			break;
+		decode_osc_control(root, "platform does not support",
+				   ctrl & ~(*mask));
 		ctrl = *mask;
 	}
 
 	if ((ctrl & req) != req) {
+		decode_osc_control(root, "not requesting control; platform does not support",
+				   req & ~(ctrl));
 		status = AE_SUPPORT;
 		goto out;
 	}
@@ -363,7 +416,7 @@ EXPORT_SYMBOL(acpi_pci_osc_control_set);
 static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
 				 int *clear_aspm)
 {
-	u32 support, control;
+	u32 support, control, requested;
 	acpi_status status;
 	struct acpi_device *device = root->device;
 	acpi_handle handle = device->handle;
@@ -379,6 +432,8 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
 		support |= OSC_PCI_ASPM_SUPPORT | OSC_PCI_CLOCK_PM_SUPPORT;
 	if (pci_msi_enabled())
 		support |= OSC_PCI_MSI_SUPPORT;
+
+	decode_osc_support(root, "OS supports", support);
 	status = acpi_pci_osc_support(root, support);
 	if (ACPI_FAILURE(status)) {
 		dev_info(&device->dev, "_OSC failed (%s); disabling ASPM\n",
@@ -393,8 +448,8 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
 	}
 
 	if ((support & ACPI_PCIE_REQ_SUPPORT) != ACPI_PCIE_REQ_SUPPORT) {
-		dev_info(&device->dev, "Not requesting _OSC control (we support %#02x but %#02x are required)\n",
-			 support, ACPI_PCIE_REQ_SUPPORT);
+		decode_osc_support(root, "not requesting OS control; OS requires",
+				   ACPI_PCIE_REQ_SUPPORT);
 		return;
 	}
 
@@ -404,21 +459,17 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
 
 	if (pci_aer_available()) {
 		if (aer_acpi_firmware_first())
-			dev_dbg(&device->dev,
-				"PCIe errors handled by BIOS.\n");
+			dev_info(&device->dev,
+				 "PCIe AER handled by firmware\n");
 		else
 			control |= OSC_PCI_EXPRESS_AER_CONTROL;
 	}
 
-	dev_info(&device->dev,
-		 "Requesting ACPI _OSC control (0x%02x)\n", control);
-
+	requested = control;
 	status = acpi_pci_osc_control_set(handle, &control,
 					  OSC_PCI_EXPRESS_CAPABILITY_CONTROL);
 	if (ACPI_SUCCESS(status)) {
-		dev_info(&device->dev,
-			 "ACPI _OSC control (0x%02x) granted\n",
-			 control);
+		decode_osc_control(root, "OS now controls", control);
 		if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM) {
 			/*
 			 * We have ASPM control, but the FADT indicates
@@ -427,12 +478,11 @@ static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm,
 			*clear_aspm = 1;
 		}
 	} else {
-		dev_info(&device->dev,
-			"ACPI _OSC request failed (%s), "
-			"returned control mask: 0x%02x\n",
-			acpi_format_exception(status), control);
-		dev_info(&device->dev,
-			 "ACPI _OSC control for PCIe not granted, disabling ASPM\n");
+		decode_osc_control(root, "OS requested", requested);
+		decode_osc_control(root, "platform willing to grant", control);
+		dev_info(&device->dev, "_OSC failed (%s); disabling ASPM\n",
+			acpi_format_exception(status));
+
 		/*
 		 * We want to disable ASPM here, but aspm_disabled
 		 * needs to remain in its state from boot so that we
-- 
cgit 


From eba682a5aeb6c9bf08a9751f8d3ecafe043d8f88 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Fri, 30 Aug 2013 12:25:10 +0200
Subject: intel_idle: shrink states tables

There is no reason to define CPUIDLE_STATE_MAX (currently 10) entries
in states tables if the driver always stops iterating over table when
it encounters first .enter == NULL entry.

$ size drivers/idle/intel_idle.o.*
   text    data     bss     dec     hex filename
   2886    5440      32    8358    20a6 drivers/idle/intel_idle.o.before
   2886    3752      32    6670    1a0e drivers/idle/intel_idle.o.after

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/idle/intel_idle.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index fa6964d8681a..9c97fbb426df 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -123,7 +123,7 @@ static struct cpuidle_state *cpuidle_state_table;
  * which is also the index into the MWAIT hint array.
  * Thus C0 is a dummy.
  */
-static struct cpuidle_state nehalem_cstates[CPUIDLE_STATE_MAX] = {
+static struct cpuidle_state nehalem_cstates[] = {
 	{
 		.name = "C1-NHM",
 		.desc = "MWAIT 0x00",
@@ -156,7 +156,7 @@ static struct cpuidle_state nehalem_cstates[CPUIDLE_STATE_MAX] = {
 		.enter = NULL }
 };
 
-static struct cpuidle_state snb_cstates[CPUIDLE_STATE_MAX] = {
+static struct cpuidle_state snb_cstates[] = {
 	{
 		.name = "C1-SNB",
 		.desc = "MWAIT 0x00",
@@ -196,7 +196,7 @@ static struct cpuidle_state snb_cstates[CPUIDLE_STATE_MAX] = {
 		.enter = NULL }
 };
 
-static struct cpuidle_state ivb_cstates[CPUIDLE_STATE_MAX] = {
+static struct cpuidle_state ivb_cstates[] = {
 	{
 		.name = "C1-IVB",
 		.desc = "MWAIT 0x00",
@@ -236,7 +236,7 @@ static struct cpuidle_state ivb_cstates[CPUIDLE_STATE_MAX] = {
 		.enter = NULL }
 };
 
-static struct cpuidle_state hsw_cstates[CPUIDLE_STATE_MAX] = {
+static struct cpuidle_state hsw_cstates[] = {
 	{
 		.name = "C1-HSW",
 		.desc = "MWAIT 0x00",
@@ -297,7 +297,7 @@ static struct cpuidle_state hsw_cstates[CPUIDLE_STATE_MAX] = {
 		.enter = NULL }
 };
 
-static struct cpuidle_state atom_cstates[CPUIDLE_STATE_MAX] = {
+static struct cpuidle_state atom_cstates[] = {
 	{
 		.name = "C1E-ATM",
 		.desc = "MWAIT 0x00",
@@ -628,7 +628,7 @@ static int intel_idle_cpu_init(int cpu)
 		int num_substates, mwait_hint, mwait_cstate, mwait_substate;
 
 		if (cpuidle_state_table[cstate].enter == NULL)
-			continue;
+			break;
 
 		if (cstate + 1 > max_cstate) {
 			printk(PREFIX "max_cstate %d reached\n", max_cstate);
-- 
cgit 


From 9d046ccb98085f1d437585f84748c783a04ba240 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Fri, 30 Aug 2013 12:26:42 +0200
Subject: intel_idle: mark states tables with __initdata tag

States tables are only accessed during driver initialization so they
can be marked with __initdata tag.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/idle/intel_idle.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 9c97fbb426df..53b24f14606a 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -123,7 +123,7 @@ static struct cpuidle_state *cpuidle_state_table;
  * which is also the index into the MWAIT hint array.
  * Thus C0 is a dummy.
  */
-static struct cpuidle_state nehalem_cstates[] = {
+static struct cpuidle_state nehalem_cstates[] __initdata = {
 	{
 		.name = "C1-NHM",
 		.desc = "MWAIT 0x00",
@@ -156,7 +156,7 @@ static struct cpuidle_state nehalem_cstates[] = {
 		.enter = NULL }
 };
 
-static struct cpuidle_state snb_cstates[] = {
+static struct cpuidle_state snb_cstates[] __initdata = {
 	{
 		.name = "C1-SNB",
 		.desc = "MWAIT 0x00",
@@ -196,7 +196,7 @@ static struct cpuidle_state snb_cstates[] = {
 		.enter = NULL }
 };
 
-static struct cpuidle_state ivb_cstates[] = {
+static struct cpuidle_state ivb_cstates[] __initdata = {
 	{
 		.name = "C1-IVB",
 		.desc = "MWAIT 0x00",
@@ -236,7 +236,7 @@ static struct cpuidle_state ivb_cstates[] = {
 		.enter = NULL }
 };
 
-static struct cpuidle_state hsw_cstates[] = {
+static struct cpuidle_state hsw_cstates[] __initdata = {
 	{
 		.name = "C1-HSW",
 		.desc = "MWAIT 0x00",
@@ -297,7 +297,7 @@ static struct cpuidle_state hsw_cstates[] = {
 		.enter = NULL }
 };
 
-static struct cpuidle_state atom_cstates[] = {
+static struct cpuidle_state atom_cstates[] __initdata = {
 	{
 		.name = "C1E-ATM",
 		.desc = "MWAIT 0x00",
-- 
cgit 


From 00f3e755513748a6a4f2c370742227aabd8af170 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Fri, 30 Aug 2013 12:27:45 +0200
Subject: intel_idle: mark some functions with __init tag

intel_idle_probe() and intel_idle_cpuidle_driver_init() can be marked
with __init tag as they are only called from intel_idle_init().

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/idle/intel_idle.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 53b24f14606a..33e599ebbe96 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -490,7 +490,7 @@ MODULE_DEVICE_TABLE(x86cpu, intel_idle_ids);
 /*
  * intel_idle_probe()
  */
-static int intel_idle_probe(void)
+static int __init intel_idle_probe(void)
 {
 	unsigned int eax, ebx, ecx;
 	const struct x86_cpu_id *id;
@@ -558,7 +558,7 @@ static void intel_idle_cpuidle_devices_uninit(void)
  * intel_idle_cpuidle_driver_init()
  * allocate, initialize cpuidle_states
  */
-static int intel_idle_cpuidle_driver_init(void)
+static int __init intel_idle_cpuidle_driver_init(void)
 {
 	int cstate;
 	struct cpuidle_driver *drv = &intel_idle_driver;
-- 
cgit 


From 35baa3369d1c68921b37af64495f63933850ad80 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Fri, 30 Aug 2013 12:15:04 +0200
Subject: ARM: EXYNOS: convert cpuidle driver to be a platform driver

ARM EXYNOS cpuidle driver is currently not multiplatform support
ready (as it uses device_initcall() for initialization and doesn't
check on what platform it is running). Fix it by converting the
driver to be a platform driver and registering exynos_cpuidle
platform device from exynos[4,5]_dt_machine_init().

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/arm/mach-exynos/common.c          | 11 +++++++++++
 arch/arm/mach-exynos/common.h          |  1 +
 arch/arm/mach-exynos/cpuidle.c         | 14 ++++++++++++--
 arch/arm/mach-exynos/mach-exynos4-dt.c |  2 ++
 arch/arm/mach-exynos/mach-exynos5-dt.c |  2 ++
 5 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index ba95e5db2501..c17407b16d7c 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -30,6 +30,7 @@
 #include <linux/clk-provider.h>
 #include <linux/irqchip/arm-gic.h>
 #include <linux/irqchip/chained_irq.h>
+#include <linux/platform_device.h>
 
 #include <asm/proc-fns.h>
 #include <asm/exception.h>
@@ -294,6 +295,16 @@ void exynos5_restart(enum reboot_mode mode, const char *cmd)
 	__raw_writel(val, addr);
 }
 
+static struct platform_device exynos_cpuidle = {
+	.name		= "exynos_cpuidle",
+	.id		= -1,
+};
+
+void __init exynos_cpuidle_init(void)
+{
+	platform_device_register(&exynos_cpuidle);
+}
+
 void __init exynos_init_late(void)
 {
 	if (of_machine_is_compatible("samsung,exynos5440"))
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index 8646a141ae46..b2ac1885d381 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -22,6 +22,7 @@ struct map_desc;
 void exynos_init_io(void);
 void exynos4_restart(enum reboot_mode mode, const char *cmd);
 void exynos5_restart(enum reboot_mode mode, const char *cmd);
+void exynos_cpuidle_init(void);
 void exynos_init_late(void);
 
 void exynos_firmware_init(void);
diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c
index ac139226d63c..1bde6ad07d93 100644
--- a/arch/arm/mach-exynos/cpuidle.c
+++ b/arch/arm/mach-exynos/cpuidle.c
@@ -15,6 +15,7 @@
 #include <linux/io.h>
 #include <linux/export.h>
 #include <linux/time.h>
+#include <linux/platform_device.h>
 
 #include <asm/proc-fns.h>
 #include <asm/smp_scu.h>
@@ -192,7 +193,7 @@ static void __init exynos5_core_down_clk(void)
 	__raw_writel(tmp, EXYNOS5_PWR_CTRL2);
 }
 
-static int __init exynos4_init_cpuidle(void)
+static int __init exynos_cpuidle_probe(struct platform_device *pdev)
 {
 	int cpu_id, ret;
 	struct cpuidle_device *device;
@@ -226,4 +227,13 @@ static int __init exynos4_init_cpuidle(void)
 
 	return 0;
 }
-device_initcall(exynos4_init_cpuidle);
+
+static struct platform_driver exynos_cpuidle_driver = {
+	.probe	= exynos_cpuidle_probe,
+	.driver = {
+		.name = "exynos_cpuidle",
+		.owner = THIS_MODULE,
+	},
+};
+
+module_platform_driver(exynos_cpuidle_driver);
diff --git a/arch/arm/mach-exynos/mach-exynos4-dt.c b/arch/arm/mach-exynos/mach-exynos4-dt.c
index 0099c6c13bba..53a3dc37a730 100644
--- a/arch/arm/mach-exynos/mach-exynos4-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos4-dt.c
@@ -25,6 +25,8 @@
 
 static void __init exynos4_dt_machine_init(void)
 {
+	exynos_cpuidle_init();
+
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }
 
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index f874b773ca13..c9f7dd1cdc8f 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -47,6 +47,8 @@ static void __init exynos5_dt_machine_init(void)
 		}
 	}
 
+	exynos_cpuidle_init();
+
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }
 
-- 
cgit 


From f28eb9f5009abdc74d4052ae05c01795e254a6fc Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 23 Sep 2013 09:51:13 +0800
Subject: ACPICA: Improve error message for "too many parent prefixes"
 condition.

Emit the full offending pathname in the error message.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/nsaccess.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/acpica/nsaccess.c b/drivers/acpi/acpica/nsaccess.c
index c5316e5bd4ab..aff79c7392ff 100644
--- a/drivers/acpi/acpica/nsaccess.c
+++ b/drivers/acpi/acpica/nsaccess.c
@@ -424,8 +424,9 @@ acpi_ns_lookup(union acpi_generic_state *scope_info,
 					/* Current scope has no parent scope */
 
 					ACPI_ERROR((AE_INFO,
-						    "ACPI path has too many parent prefixes (^) "
-						    "- reached beyond root node"));
+						    "%s: Path has too many parent prefixes (^) "
+						    "- reached beyond root node",
+						    pathname));
 					return_ACPI_STATUS(AE_NOT_FOUND);
 				}
 			}
-- 
cgit 


From c3faedcdb41a2fedbec8ca8f8612d67b012b44a2 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bjorn.helgaas@hp.com>
Date: Mon, 23 Sep 2013 09:51:22 +0800
Subject: ACPICA: acpi_read: On error, do not modify the return value target
 location.

If an error happens in the middle of a split 32/32 64-bit I/O
operation, do not modify the target of the return value pointer.
Makes the code consistent with the rest of ACPICA. Bjorn Helgaas.

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/hwxface.c | 26 ++++++++++++++------------
 1 file changed, 14 insertions(+), 12 deletions(-)

diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c
index 5ee7a814cd92..f81fb068d20e 100644
--- a/drivers/acpi/acpica/hwxface.c
+++ b/drivers/acpi/acpica/hwxface.c
@@ -119,7 +119,8 @@ ACPI_EXPORT_SYMBOL(acpi_reset)
  ******************************************************************************/
 acpi_status acpi_read(u64 *return_value, struct acpi_generic_address *reg)
 {
-	u32 value;
+	u32 value_lo;
+	u32 value_hi;
 	u32 width;
 	u64 address;
 	acpi_status status;
@@ -137,13 +138,8 @@ acpi_status acpi_read(u64 *return_value, struct acpi_generic_address *reg)
 		return (status);
 	}
 
-	/* Initialize entire 64-bit return value to zero */
-
-	*return_value = 0;
-	value = 0;
-
 	/*
-	 * Two address spaces supported: Memory or IO. PCI_Config is
+	 * Two address spaces supported: Memory or I/O. PCI_Config is
 	 * not supported here because the GAS structure is insufficient
 	 */
 	if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) {
@@ -155,29 +151,35 @@ acpi_status acpi_read(u64 *return_value, struct acpi_generic_address *reg)
 		}
 	} else {		/* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */
 
+		value_lo = 0;
+		value_hi = 0;
+
 		width = reg->bit_width;
 		if (width == 64) {
 			width = 32;	/* Break into two 32-bit transfers */
 		}
 
 		status = acpi_hw_read_port((acpi_io_address)
-					   address, &value, width);
+					   address, &value_lo, width);
 		if (ACPI_FAILURE(status)) {
 			return (status);
 		}
-		*return_value = value;
 
 		if (reg->bit_width == 64) {
 
 			/* Read the top 32 bits */
 
 			status = acpi_hw_read_port((acpi_io_address)
-						   (address + 4), &value, 32);
+						   (address + 4), &value_hi,
+						   32);
 			if (ACPI_FAILURE(status)) {
 				return (status);
 			}
-			*return_value |= ((u64)value << 32);
 		}
+
+		/* Set the return value only if status is AE_OK */
+
+		*return_value = (value_lo | ((u64)value_hi << 32));
 	}
 
 	ACPI_DEBUG_PRINT((ACPI_DB_IO,
@@ -186,7 +188,7 @@ acpi_status acpi_read(u64 *return_value, struct acpi_generic_address *reg)
 			  ACPI_FORMAT_UINT64(address),
 			  acpi_ut_get_region_name(reg->space_id)));
 
-	return (status);
+	return (AE_OK);
 }
 
 ACPI_EXPORT_SYMBOL(acpi_read)
-- 
cgit 


From 2856846e3a7bee02ce6b498c760376061e41aaed Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 23 Sep 2013 09:51:39 +0800
Subject: ACPICA: Debug output: small formatting update, no functional change.

Allow for longer filenames in the module name output during
trace operations.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/utdebug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c
index 5796e11a0671..ffd0db509d34 100644
--- a/drivers/acpi/acpica/utdebug.c
+++ b/drivers/acpi/acpica/utdebug.c
@@ -190,7 +190,7 @@ acpi_debug_print(u32 requested_debug_level,
 	 * Display the module name, current line number, thread ID (if requested),
 	 * current procedure nesting level, and the current procedure name
 	 */
-	acpi_os_printf("%8s-%04ld ", module_name, line_number);
+	acpi_os_printf("%9s-%04ld ", module_name, line_number);
 
 	if (ACPI_LV_THREADS & acpi_dbg_level) {
 		acpi_os_printf("[%u] ", (u32)thread_id);
-- 
cgit 


From 30095207072665503a5f6c769d16be26de38fa6a Mon Sep 17 00:00:00 2001
From: Naresh Bhat <naresh.bhat@linaro.org>
Date: Mon, 23 Sep 2013 09:51:46 +0800
Subject: ACPICA: Linux-specific header: enable "aarch64" 64-bit build.

Add support for the __aarch64__ define for 64-bit builds.

Signed-off-by: Naresh Bhat <naresh.bhat@linaro.org>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/acpi/platform/aclinux.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index 68534ef86ec8..fda0f3e35c03 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -87,7 +87,7 @@
 #define ACPI_FLUSH_CPU_CACHE()
 #define ACPI_CAST_PTHREAD_T(pthread) ((acpi_thread_id) (pthread))
 
-#if defined(__ia64__) || defined(__x86_64__)
+#if defined(__ia64__) || defined(__x86_64__) || defined(__aarch64__)
 #define ACPI_MACHINE_WIDTH          64
 #define COMPILER_DEPENDENT_INT64    long
 #define COMPILER_DEPENDENT_UINT64   unsigned long
-- 
cgit 


From 1f5210a1e6c21ef850a290bac2a85ae1da2f0c2e Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 23 Sep 2013 09:51:52 +0800
Subject: ACPICA: Debugger: Prevent possible command line buffer overflow,
 kernel behavior is not affected.

Increase the size of a couple of the debugger line buffers.
ACPICA BZ 1037.

The debugger related code is not in the kernel so the behavior of the
kernel is not affected.

Buglink: http://bugs.acpica.org/show_bug.cgi?id=1037
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acglobal.h | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index 90e846f985fa..c9ad2e1f1ee1 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -445,13 +445,6 @@ ACPI_EXTERN u8 acpi_gbl_db_opt_tables;
 ACPI_EXTERN u8 acpi_gbl_db_opt_stats;
 ACPI_EXTERN u8 acpi_gbl_db_opt_ini_methods;
 ACPI_EXTERN u8 acpi_gbl_db_opt_no_region_support;
-
-ACPI_EXTERN char *acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS];
-ACPI_EXTERN acpi_object_type acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS];
-ACPI_EXTERN char acpi_gbl_db_line_buf[ACPI_DB_LINE_BUFFER_SIZE];
-ACPI_EXTERN char acpi_gbl_db_parsed_buf[ACPI_DB_LINE_BUFFER_SIZE];
-ACPI_EXTERN char acpi_gbl_db_scope_buf[80];
-ACPI_EXTERN char acpi_gbl_db_debug_filename[80];
 ACPI_EXTERN u8 acpi_gbl_db_output_to_file;
 ACPI_EXTERN char *acpi_gbl_db_buffer;
 ACPI_EXTERN char *acpi_gbl_db_filename;
@@ -459,6 +452,16 @@ ACPI_EXTERN u32 acpi_gbl_db_debug_level;
 ACPI_EXTERN u32 acpi_gbl_db_console_debug_level;
 ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_db_scope_node;
 
+ACPI_EXTERN char *acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS];
+ACPI_EXTERN acpi_object_type acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS];
+
+/* These buffers should all be the same size */
+
+ACPI_EXTERN char acpi_gbl_db_line_buf[ACPI_DB_LINE_BUFFER_SIZE];
+ACPI_EXTERN char acpi_gbl_db_parsed_buf[ACPI_DB_LINE_BUFFER_SIZE];
+ACPI_EXTERN char acpi_gbl_db_scope_buf[ACPI_DB_LINE_BUFFER_SIZE];
+ACPI_EXTERN char acpi_gbl_db_debug_filename[ACPI_DB_LINE_BUFFER_SIZE];
+
 /*
  * Statistic globals
  */
-- 
cgit 


From d53d820741806a5488d0f002b61765deb58371f3 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 23 Sep 2013 09:51:58 +0800
Subject: ACPICA: Validate start object for acpi_walk_namespace.

Perform a sanity check on the start object to prevent problems
later. ACPICA BZ 1025.
This patch only adds additional input parameter validation, no actual
kernel suffering has been discovered.

Buglink: http://bugs.acpica.org/show_bug.cgi?id=1025
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/nsxfeval.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index b38b4b07f86e..481a6b4a9b2f 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -605,11 +605,19 @@ acpi_walk_namespace(acpi_object_type type,
 		goto unlock_and_exit;
 	}
 
+	/* Now we can validate the starting node */
+
+	if (!acpi_ns_validate_handle(start_object)) {
+		status = AE_BAD_PARAMETER;
+		goto unlock_and_exit2;
+	}
+
 	status = acpi_ns_walk_namespace(type, start_object, max_depth,
 					ACPI_NS_WALK_UNLOCK,
 					descending_callback, ascending_callback,
 					context, return_value);
 
+      unlock_and_exit2:
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 
       unlock_and_exit:
-- 
cgit 


From a2fd4b4b4e2884405c54a91514b0fad3853aea01 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Mon, 23 Sep 2013 09:52:05 +0800
Subject: ACPICA: Add support for host-installed SCI handlers.

This change adds support to allow hosts to install System Control
Interrupt handlers. Certain ACPI functionality requires the host
to handle raw SCIs. For example, the "SCI Doorbell" that is defined
for memory power state support requires the host device driver to
handle SCIs to examine if the doorbell has been activated. Multiple
SCI handlers can be installed to allow for future expansion.
Debugger support is included.
Lv Zheng, Bob Moore. ACPICA BZ 1032.

Bug summary:
It is reported when the PCC (Platform Communication Channel, via
MPST table, defined in ACPI specification 5.0) subchannel responds
to the host, it issues an SCI and the host must probe the subchannel
for channel status.

Buglink: http://bugs.acpica.org/show_bug.cgi?id=1032
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acdebug.h   |   3 +-
 drivers/acpi/acpica/acevents.h  |   6 +-
 drivers/acpi/acpica/acglobal.h  |   1 +
 drivers/acpi/acpica/aclocal.h   |   8 +++
 drivers/acpi/acpica/evgpeutil.c |   2 +-
 drivers/acpi/acpica/evmisc.c    |  14 ++--
 drivers/acpi/acpica/evsci.c     |  80 +++++++++++++++++++++--
 drivers/acpi/acpica/evxface.c   | 139 ++++++++++++++++++++++++++++++++++++++++
 drivers/acpi/acpica/utglobal.c  |   3 +-
 include/acpi/acpixf.h           |  13 +++-
 include/acpi/actypes.h          |   3 +
 11 files changed, 249 insertions(+), 23 deletions(-)

diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h
index 9feba08c29fe..30c2d6911386 100644
--- a/drivers/acpi/acpica/acdebug.h
+++ b/drivers/acpi/acpica/acdebug.h
@@ -113,11 +113,12 @@ void acpi_db_display_handlers(void);
 ACPI_HW_DEPENDENT_RETURN_VOID(void
 			      acpi_db_generate_gpe(char *gpe_arg,
 						   char *block_arg))
+ ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_db_generate_sci(void))
 
 /*
  * dbconvert - miscellaneous conversion routines
  */
- acpi_status acpi_db_hex_char_to_value(int hex_char, u8 *return_value);
+acpi_status acpi_db_hex_char_to_value(int hex_char, u8 *return_value);
 
 acpi_status acpi_db_convert_to_package(char *string, union acpi_object *object);
 
diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h
index ab0e97710381..3ae5fd02ae64 100644
--- a/drivers/acpi/acpica/acevents.h
+++ b/drivers/acpi/acpica/acevents.h
@@ -242,11 +242,11 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj,
  */
 u32 ACPI_SYSTEM_XFACE acpi_ev_gpe_xrupt_handler(void *context);
 
-u32 acpi_ev_install_sci_handler(void);
+u32 acpi_ev_sci_dispatch(void);
 
-acpi_status acpi_ev_remove_sci_handler(void);
+u32 acpi_ev_install_sci_handler(void);
 
-u32 acpi_ev_initialize_SCI(u32 program_SCI);
+acpi_status acpi_ev_remove_all_sci_handlers(void);
 
 ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_ev_terminate(void))
 #endif				/* __ACEVENTS_H__  */
diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index c9ad2e1f1ee1..0fba431f4fcb 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -269,6 +269,7 @@ ACPI_EXTERN acpi_table_handler acpi_gbl_table_handler;
 ACPI_EXTERN void *acpi_gbl_table_handler_context;
 ACPI_EXTERN struct acpi_walk_state *acpi_gbl_breakpoint_walk;
 ACPI_EXTERN acpi_interface_handler acpi_gbl_interface_handler;
+ACPI_EXTERN struct acpi_sci_handler_info *acpi_gbl_sci_handler_list;
 
 /* Owner ID support */
 
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 0ed00669cd21..be9e30ee6048 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -398,6 +398,14 @@ struct acpi_simple_repair_info {
  *
  ****************************************************************************/
 
+/* Dispatch info for each host-installed SCI handler */
+
+struct acpi_sci_handler_info {
+	struct acpi_sci_handler_info *next;
+	acpi_sci_handler address;	/* Address of handler */
+	void *context;		/* Context to be passed to handler */
+};
+
 /* Dispatch info for each GPE -- either a method or handler, cannot be both */
 
 struct acpi_gpe_handler_info {
diff --git a/drivers/acpi/acpica/evgpeutil.c b/drivers/acpi/acpica/evgpeutil.c
index b24dbb80fab8..d52339090b60 100644
--- a/drivers/acpi/acpica/evgpeutil.c
+++ b/drivers/acpi/acpica/evgpeutil.c
@@ -196,7 +196,7 @@ acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
  *
  * FUNCTION:    acpi_ev_get_gpe_xrupt_block
  *
- * PARAMETERS:  interrupt_number     - Interrupt for a GPE block
+ * PARAMETERS:  interrupt_number            - Interrupt for a GPE block
  *
  * RETURN:      A GPE interrupt block
  *
diff --git a/drivers/acpi/acpica/evmisc.c b/drivers/acpi/acpica/evmisc.c
index 1b111ef74903..a5687540e9a6 100644
--- a/drivers/acpi/acpica/evmisc.c
+++ b/drivers/acpi/acpica/evmisc.c
@@ -264,13 +264,6 @@ void acpi_ev_terminate(void)
 
 		status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block, NULL);
 
-		/* Remove SCI handler */
-
-		status = acpi_ev_remove_sci_handler();
-		if (ACPI_FAILURE(status)) {
-			ACPI_ERROR((AE_INFO, "Could not remove SCI handler"));
-		}
-
 		status = acpi_ev_remove_global_lock_handler();
 		if (ACPI_FAILURE(status)) {
 			ACPI_ERROR((AE_INFO,
@@ -280,6 +273,13 @@ void acpi_ev_terminate(void)
 		acpi_gbl_events_initialized = FALSE;
 	}
 
+	/* Remove SCI handlers */
+
+	status = acpi_ev_remove_all_sci_handlers();
+	if (ACPI_FAILURE(status)) {
+		ACPI_ERROR((AE_INFO, "Could not remove SCI handler"));
+	}
+
 	/* Deallocate all handler objects installed within GPE info structs */
 
 	status = acpi_ev_walk_gpe_list(acpi_ev_delete_gpe_handlers, NULL);
diff --git a/drivers/acpi/acpica/evsci.c b/drivers/acpi/acpica/evsci.c
index b905acf7aacd..b2f0fb2f57b4 100644
--- a/drivers/acpi/acpica/evsci.c
+++ b/drivers/acpi/acpica/evsci.c
@@ -52,6 +52,52 @@ ACPI_MODULE_NAME("evsci")
 /* Local prototypes */
 static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context);
 
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ev_sci_dispatch
+ *
+ * PARAMETERS:  None
+ *
+ * RETURN:      Status code indicates whether interrupt was handled.
+ *
+ * DESCRIPTION: Dispatch the SCI to all host-installed SCI handlers.
+ *
+ ******************************************************************************/
+
+u32 acpi_ev_sci_dispatch(void)
+{
+	struct acpi_sci_handler_info *sci_handler;
+	acpi_cpu_flags flags;
+	u32 int_status = ACPI_INTERRUPT_NOT_HANDLED;
+
+	ACPI_FUNCTION_NAME(ev_sci_dispatch);
+
+	/* Are there any host-installed SCI handlers? */
+
+	if (!acpi_gbl_sci_handler_list) {
+		return (int_status);
+	}
+
+	flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+
+	/* Invoke all host-installed SCI handlers */
+
+	sci_handler = acpi_gbl_sci_handler_list;
+	while (sci_handler) {
+
+		/* Invoke the installed handler (at interrupt level) */
+
+		int_status |= sci_handler->address((u32)acpi_gbl_FADT.
+						   sci_interrupt,
+						   sci_handler->context);
+
+		sci_handler = sci_handler->next;
+	}
+
+	acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+	return (int_status);
+}
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ev_sci_xrupt_handler
@@ -89,6 +135,10 @@ static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context)
 	 */
 	interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list);
 
+	/* Invoke all host-installed SCI handlers */
+
+	interrupt_handled |= acpi_ev_sci_dispatch();
+
 	return_UINT32(interrupt_handled);
 }
 
@@ -112,14 +162,13 @@ u32 ACPI_SYSTEM_XFACE acpi_ev_gpe_xrupt_handler(void *context)
 	ACPI_FUNCTION_TRACE(ev_gpe_xrupt_handler);
 
 	/*
-	 * We are guaranteed by the ACPI CA initialization/shutdown code that
+	 * We are guaranteed by the ACPICA initialization/shutdown code that
 	 * if this interrupt handler is installed, ACPI is enabled.
 	 */
 
 	/* GPEs: Check for and dispatch any GPEs that have occurred */
 
 	interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list);
-
 	return_UINT32(interrupt_handled);
 }
 
@@ -150,15 +199,15 @@ u32 acpi_ev_install_sci_handler(void)
 
 /******************************************************************************
  *
- * FUNCTION:    acpi_ev_remove_sci_handler
+ * FUNCTION:    acpi_ev_remove_all_sci_handlers
  *
  * PARAMETERS:  none
  *
- * RETURN:      E_OK if handler uninstalled OK, E_ERROR if handler was not
+ * RETURN:      AE_OK if handler uninstalled, AE_ERROR if handler was not
  *              installed to begin with
  *
  * DESCRIPTION: Remove the SCI interrupt handler. No further SCIs will be
- *              taken.
+ *              taken. Remove all host-installed SCI handlers.
  *
  * Note:  It doesn't seem important to disable all events or set the event
  *        enable registers to their original values. The OS should disable
@@ -167,11 +216,13 @@ u32 acpi_ev_install_sci_handler(void)
  *
  ******************************************************************************/
 
-acpi_status acpi_ev_remove_sci_handler(void)
+acpi_status acpi_ev_remove_all_sci_handlers(void)
 {
+	struct acpi_sci_handler_info *sci_handler;
+	acpi_cpu_flags flags;
 	acpi_status status;
 
-	ACPI_FUNCTION_TRACE(ev_remove_sci_handler);
+	ACPI_FUNCTION_TRACE(ev_remove_all_sci_handlers);
 
 	/* Just let the OS remove the handler and disable the level */
 
@@ -179,6 +230,21 @@ acpi_status acpi_ev_remove_sci_handler(void)
 	    acpi_os_remove_interrupt_handler((u32) acpi_gbl_FADT.sci_interrupt,
 					     acpi_ev_sci_xrupt_handler);
 
+	if (!acpi_gbl_sci_handler_list) {
+		return (status);
+	}
+
+	flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+
+	/* Free all host-installed SCI handlers */
+
+	while (acpi_gbl_sci_handler_list) {
+		sci_handler = acpi_gbl_sci_handler_list;
+		acpi_gbl_sci_handler_list = sci_handler->next;
+		ACPI_FREE(sci_handler);
+	}
+
+	acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
 	return_ACPI_STATUS(status);
 }
 
diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c
index ca5fba99c33b..6f56146a6f88 100644
--- a/drivers/acpi/acpica/evxface.c
+++ b/drivers/acpi/acpica/evxface.c
@@ -383,6 +383,144 @@ ACPI_EXPORT_SYMBOL(acpi_install_exception_handler)
 #endif				/*  ACPI_FUTURE_USAGE  */
 
 #if (!ACPI_REDUCED_HARDWARE)
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_install_sci_handler
+ *
+ * PARAMETERS:  address             - Address of the handler
+ *              context             - Value passed to the handler on each SCI
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Install a handler for a System Control Interrupt.
+ *
+ ******************************************************************************/
+acpi_status acpi_install_sci_handler(acpi_sci_handler address, void *context)
+{
+	struct acpi_sci_handler_info *new_sci_handler;
+	struct acpi_sci_handler_info *sci_handler;
+	acpi_cpu_flags flags;
+	acpi_status status;
+
+	ACPI_FUNCTION_TRACE(acpi_install_sci_handler);
+
+	if (!address) {
+		return_ACPI_STATUS(AE_BAD_PARAMETER);
+	}
+
+	/* Allocate and init a handler object */
+
+	new_sci_handler = ACPI_ALLOCATE(sizeof(struct acpi_sci_handler_info));
+	if (!new_sci_handler) {
+		return_ACPI_STATUS(AE_NO_MEMORY);
+	}
+
+	new_sci_handler->address = address;
+	new_sci_handler->context = context;
+
+	status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+	if (ACPI_FAILURE(status)) {
+		goto exit;
+	}
+
+	/* Lock list during installation */
+
+	flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+	sci_handler = acpi_gbl_sci_handler_list;
+
+	/* Ensure handler does not already exist */
+
+	while (sci_handler) {
+		if (address == sci_handler->address) {
+			status = AE_ALREADY_EXISTS;
+			goto unlock_and_exit;
+		}
+
+		sci_handler = sci_handler->next;
+	}
+
+	/* Install the new handler into the global list (at head) */
+
+	new_sci_handler->next = acpi_gbl_sci_handler_list;
+	acpi_gbl_sci_handler_list = new_sci_handler;
+
+      unlock_and_exit:
+
+	acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+	(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+
+      exit:
+	if (ACPI_FAILURE(status)) {
+		ACPI_FREE(new_sci_handler);
+	}
+	return_ACPI_STATUS(status);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_remove_sci_handler
+ *
+ * PARAMETERS:  address             - Address of the handler
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Remove a handler for a System Control Interrupt.
+ *
+ ******************************************************************************/
+
+acpi_status acpi_remove_sci_handler(acpi_sci_handler address)
+{
+	struct acpi_sci_handler_info *prev_sci_handler;
+	struct acpi_sci_handler_info *next_sci_handler;
+	acpi_cpu_flags flags;
+	acpi_status status;
+
+	ACPI_FUNCTION_TRACE(acpi_remove_sci_handler);
+
+	if (!address) {
+		return_ACPI_STATUS(AE_BAD_PARAMETER);
+	}
+
+	status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS);
+	if (ACPI_FAILURE(status)) {
+		return_ACPI_STATUS(status);
+	}
+
+	/* Remove the SCI handler with lock */
+
+	flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock);
+
+	prev_sci_handler = NULL;
+	next_sci_handler = acpi_gbl_sci_handler_list;
+	while (next_sci_handler) {
+		if (next_sci_handler->address == address) {
+
+			/* Unlink and free the SCI handler info block */
+
+			if (prev_sci_handler) {
+				prev_sci_handler->next = next_sci_handler->next;
+			} else {
+				acpi_gbl_sci_handler_list =
+				    next_sci_handler->next;
+			}
+
+			acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+			ACPI_FREE(next_sci_handler);
+			goto unlock_and_exit;
+		}
+
+		prev_sci_handler = next_sci_handler;
+		next_sci_handler = next_sci_handler->next;
+	}
+
+	acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
+	status = AE_NOT_EXIST;
+
+      unlock_and_exit:
+	(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
+	return_ACPI_STATUS(status);
+}
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_install_global_event_handler
@@ -398,6 +536,7 @@ ACPI_EXPORT_SYMBOL(acpi_install_exception_handler)
  *              Can be used to update event counters, etc.
  *
  ******************************************************************************/
+
 acpi_status
 acpi_install_global_event_handler(acpi_gbl_event_handler handler, void *context)
 {
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index d6f26bf8a062..046d5b059c07 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -291,7 +291,7 @@ acpi_status acpi_ut_init_globals(void)
 
 #if (!ACPI_REDUCED_HARDWARE)
 
-	/* GPE support */
+	/* GPE/SCI support */
 
 	acpi_gbl_all_gpes_initialized = FALSE;
 	acpi_gbl_gpe_xrupt_list_head = NULL;
@@ -300,6 +300,7 @@ acpi_status acpi_ut_init_globals(void)
 	acpi_current_gpe_count = 0;
 
 	acpi_gbl_global_event_handler = NULL;
+	acpi_gbl_sci_handler_list = NULL;
 
 #endif				/* !ACPI_REDUCED_HARDWARE */
 
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 85bfdbe17805..55a4d3ae1477 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -280,9 +280,16 @@ acpi_status
 acpi_install_initialization_handler(acpi_init_handler handler, u32 function);
 
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
-				acpi_install_global_event_handler
-				(acpi_gbl_event_handler handler, void *context))
-
+				acpi_install_sci_handler(acpi_sci_handler
+							 address,
+							 void *context))
+ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
+				 acpi_remove_sci_handler(acpi_sci_handler
+							 address))
+ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
+				 acpi_install_global_event_handler
+				 (acpi_gbl_event_handler handler,
+				  void *context))
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 				 acpi_install_fixed_event_handler(u32
 								  acpi_event,
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index b748aefce929..850f75027fb6 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -945,6 +945,9 @@ typedef void
 /*
  * Various handlers and callback procedures
  */
+typedef
+u32 (*acpi_sci_handler) (u32 interrupt_number, void *context);
+
 typedef
 void (*acpi_gbl_event_handler) (u32 event_type,
 			       acpi_handle device,
-- 
cgit 


From d2e7d079c7f21999e93802351c6ac7b31d266cce Mon Sep 17 00:00:00 2001
From: "David E. Box" <david.e.box@intel.com>
Date: Mon, 23 Sep 2013 09:52:12 +0800
Subject: ACPICA: Operation region support: Never free the handler "context"
 pointer.

This change removes some dangerous code that attempts to free the
handler context pointer in some (rare) circumstances. The owner of
the handler owns this pointer and the ACPICA code should never
touch it. Although not seen to be an issue in any kernel, it did
show up as a problem under AcpiExec. Also, set the internal storage
field for the context pointer to zero when the region is deactivated,
simply for sanity. David Box.

Signed-off-by: David E. Box <david.e.box@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/evregion.c | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c
index cea14d6fc76c..6293d6bb6fe1 100644
--- a/drivers/acpi/acpica/evregion.c
+++ b/drivers/acpi/acpica/evregion.c
@@ -217,16 +217,11 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
 		if (!(region_obj->region.flags & AOPOBJ_SETUP_COMPLETE)) {
 			region_obj->region.flags |= AOPOBJ_SETUP_COMPLETE;
 
-			if (region_obj2->extra.region_context) {
-
-				/* The handler for this region was already installed */
-
-				ACPI_FREE(region_context);
-			} else {
-				/*
-				 * Save the returned context for use in all accesses to
-				 * this particular region
-				 */
+			/*
+			 * Save the returned context for use in all accesses to
+			 * the handler for this particular region
+			 */
+			if (!(region_obj2->extra.region_context)) {
 				region_obj2->extra.region_context =
 				    region_context;
 			}
@@ -402,6 +397,14 @@ acpi_ev_detach_region(union acpi_operand_object *region_obj,
 						 handler_obj->address_space.
 						 context, region_context);
 
+				/*
+				 * region_context should have been released by the deactivate
+				 * operation. We don't need access to it anymore here.
+				 */
+				if (region_context) {
+					*region_context = NULL;
+				}
+
 				/* Init routine may fail, Just ignore errors */
 
 				if (ACPI_FAILURE(status)) {
-- 
cgit 


From 424deb3870580d9afbbb421edfbe30a02ef28056 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 23 Sep 2013 09:52:19 +0800
Subject: ACPICA: Debugger: Add new command to display full namespace
 pathnames.

Paths command displays the full pathname and object type for
the entire namespace. Alternative to the Namespace command.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acdebug.h  |   2 +
 drivers/acpi/acpica/acnamesp.h |   6 ++
 drivers/acpi/acpica/nsdump.c   | 134 +++++++++++++++++++++++++++++++++++++++++
 3 files changed, 142 insertions(+)

diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h
index 30c2d6911386..27c36a5251b5 100644
--- a/drivers/acpi/acpica/acdebug.h
+++ b/drivers/acpi/acpica/acdebug.h
@@ -155,6 +155,8 @@ void acpi_db_set_scope(char *name);
 
 void acpi_db_dump_namespace(char *start_arg, char *depth_arg);
 
+void acpi_db_dump_namespace_paths(void);
+
 void acpi_db_dump_namespace_by_owner(char *owner_arg, char *depth_arg);
 
 acpi_status acpi_db_find_name_in_namespace(char *name_arg);
diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h
index 40b04bd5579e..e6138ac4a160 100644
--- a/drivers/acpi/acpica/acnamesp.h
+++ b/drivers/acpi/acpica/acnamesp.h
@@ -213,6 +213,12 @@ acpi_ns_dump_objects(acpi_object_type type,
 		     u8 display_type,
 		     u32 max_depth,
 		     acpi_owner_id owner_id, acpi_handle start_handle);
+
+void
+acpi_ns_dump_object_paths(acpi_object_type type,
+			  u8 display_type,
+			  u32 max_depth,
+			  acpi_owner_id owner_id, acpi_handle start_handle);
 #endif				/* ACPI_FUTURE_USAGE */
 
 /*
diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c
index 7418c77fde8c..80633851cb2f 100644
--- a/drivers/acpi/acpica/nsdump.c
+++ b/drivers/acpi/acpica/nsdump.c
@@ -59,6 +59,17 @@ acpi_ns_dump_one_device(acpi_handle obj_handle,
 #endif
 
 #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER)
+
+#ifdef	ACPI_FUTURE_USAGE
+static acpi_status
+acpi_ns_dump_one_object_path(acpi_handle obj_handle,
+			     u32 level, void *context, void **return_value);
+
+static acpi_status
+acpi_ns_get_max_depth(acpi_handle obj_handle,
+		      u32 level, void *context, void **return_value);
+#endif				/* ACPI_FUTURE_USAGE */
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ns_print_pathname
@@ -671,6 +682,129 @@ acpi_ns_dump_objects(acpi_object_type type,
 }
 #endif				/* ACPI_FUTURE_USAGE */
 
+#ifdef	ACPI_FUTURE_USAGE
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_dump_one_object_path, acpi_ns_get_max_depth
+ *
+ * PARAMETERS:  obj_handle          - Node to be dumped
+ *              level               - Nesting level of the handle
+ *              context             - Passed into walk_namespace
+ *              return_value        - Not used
+ *
+ * RETURN:      Status
+ *
+ * DESCRIPTION: Dump the full pathname to a namespace object. acp_ns_get_max_depth
+ *              computes the maximum nesting depth in the namespace tree, in
+ *              order to simplify formatting in acpi_ns_dump_one_object_path.
+ *              These procedures are user_functions called by acpi_ns_walk_namespace.
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_ns_dump_one_object_path(acpi_handle obj_handle,
+			     u32 level, void *context, void **return_value)
+{
+	u32 max_level = *((u32 *)context);
+	char *pathname;
+	struct acpi_namespace_node *node;
+	int path_indent;
+
+	if (!obj_handle) {
+		return (AE_OK);
+	}
+
+	node = acpi_ns_validate_handle(obj_handle);
+	pathname = acpi_ns_get_external_pathname(node);
+
+	path_indent = 1;
+	if (level <= max_level) {
+		path_indent = max_level - level + 1;
+	}
+
+	acpi_os_printf("%2d%*s%-12s%*s",
+		       level, level, " ", acpi_ut_get_type_name(node->type),
+		       path_indent, " ");
+
+	acpi_os_printf("%s\n", &pathname[1]);
+	ACPI_FREE(pathname);
+	return (AE_OK);
+}
+
+static acpi_status
+acpi_ns_get_max_depth(acpi_handle obj_handle,
+		      u32 level, void *context, void **return_value)
+{
+	u32 *max_level = (u32 *)context;
+
+	if (level > *max_level) {
+		*max_level = level;
+	}
+	return (AE_OK);
+}
+
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ns_dump_object_paths
+ *
+ * PARAMETERS:  type                - Object type to be dumped
+ *              display_type        - 0 or ACPI_DISPLAY_SUMMARY
+ *              max_depth           - Maximum depth of dump. Use ACPI_UINT32_MAX
+ *                                    for an effectively unlimited depth.
+ *              owner_id            - Dump only objects owned by this ID. Use
+ *                                    ACPI_UINT32_MAX to match all owners.
+ *              start_handle        - Where in namespace to start/end search
+ *
+ * RETURN:      None
+ *
+ * DESCRIPTION: Dump full object pathnames within the loaded namespace. Uses
+ *              acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object_path.
+ *
+ ******************************************************************************/
+
+void
+acpi_ns_dump_object_paths(acpi_object_type type,
+			  u8 display_type,
+			  u32 max_depth,
+			  acpi_owner_id owner_id, acpi_handle start_handle)
+{
+	acpi_status status;
+	u32 max_level = 0;
+
+	ACPI_FUNCTION_ENTRY();
+
+	/*
+	 * Just lock the entire namespace for the duration of the dump.
+	 * We don't want any changes to the namespace during this time,
+	 * especially the temporary nodes since we are going to display
+	 * them also.
+	 */
+	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE(status)) {
+		acpi_os_printf("Could not acquire namespace mutex\n");
+		return;
+	}
+
+	/* Get the max depth of the namespace tree, for formatting later */
+
+	(void)acpi_ns_walk_namespace(type, start_handle, max_depth,
+				     ACPI_NS_WALK_NO_UNLOCK |
+				     ACPI_NS_WALK_TEMP_NODES,
+				     acpi_ns_get_max_depth, NULL,
+				     (void *)&max_level, NULL);
+
+	/* Now dump the entire namespace */
+
+	(void)acpi_ns_walk_namespace(type, start_handle, max_depth,
+				     ACPI_NS_WALK_NO_UNLOCK |
+				     ACPI_NS_WALK_TEMP_NODES,
+				     acpi_ns_dump_one_object_path, NULL,
+				     (void *)&max_level, NULL);
+
+	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+}
+#endif				/* ACPI_FUTURE_USAGE */
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ns_dump_entry
-- 
cgit 


From 94d4be6773e86a0d52d7e200fb3cda2b9013c862 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Mon, 23 Sep 2013 09:52:29 +0800
Subject: ACPICA: Tables: Cleanup table checksum verification code.

This patch reduces code redundancy by moving the FACS/S3PT checksum
verification skip logic into acpi_tb_verify_checksum() and other
calls of this function also get benefit from this change.  Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/tbinstal.c | 12 +++---------
 drivers/acpi/acpica/tbprint.c  | 10 ++++++++++
 2 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c
index 42a13c0d7015..9e6788f9ba0f 100644
--- a/drivers/acpi/acpica/tbinstal.c
+++ b/drivers/acpi/acpica/tbinstal.c
@@ -80,16 +80,10 @@ acpi_status acpi_tb_verify_table(struct acpi_table_desc *table_desc)
 		}
 	}
 
-	/* FACS is the odd table, has no standard ACPI header and no checksum */
+	/* Always calculate checksum, ignore bad checksum if requested */
 
-	if (!ACPI_COMPARE_NAME(&table_desc->signature, ACPI_SIG_FACS)) {
-
-		/* Always calculate checksum, ignore bad checksum if requested */
-
-		status =
-		    acpi_tb_verify_checksum(table_desc->pointer,
-					    table_desc->length);
-	}
+	status =
+	    acpi_tb_verify_checksum(table_desc->pointer, table_desc->length);
 
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/tbprint.c b/drivers/acpi/acpica/tbprint.c
index dc963f823d2c..499759a23b41 100644
--- a/drivers/acpi/acpica/tbprint.c
+++ b/drivers/acpi/acpica/tbprint.c
@@ -190,6 +190,16 @@ acpi_status acpi_tb_verify_checksum(struct acpi_table_header *table, u32 length)
 {
 	u8 checksum;
 
+	/*
+	 * FACS/S3PT:
+	 * They are the odd tables, have no standard ACPI header and no checksum
+	 */
+
+	if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_S3PT) ||
+	    ACPI_COMPARE_NAME(table->signature, ACPI_SIG_FACS)) {
+		return (AE_OK);
+	}
+
 	/* Compute the checksum on the table */
 
 	checksum = acpi_tb_checksum(ACPI_CAST_PTR(u8, table), length);
-- 
cgit 


From cacba8657351f709ab3cb53a2b207f513f14054c Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Mon, 23 Sep 2013 09:52:34 +0800
Subject: ACPICA: Tables: Cleanup RSDP signature codes.

This patch introduces new macors to handle RSDP signature and cleans up the
affected codes.  Lv Zheng.
Some updates are only used for ACPICA utilities which are not shipped in
the kernel yet.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/tbprint.c  | 2 +-
 drivers/acpi/acpica/tbxfroot.c | 3 +--
 include/acpi/actypes.h         | 5 +++++
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/acpica/tbprint.c b/drivers/acpi/acpica/tbprint.c
index 499759a23b41..9a47715af1f3 100644
--- a/drivers/acpi/acpica/tbprint.c
+++ b/drivers/acpi/acpica/tbprint.c
@@ -138,7 +138,7 @@ acpi_tb_print_table_header(acpi_physical_address address,
 		ACPI_INFO((AE_INFO, "%4.4s %p %05X",
 			   header->signature, ACPI_CAST_PTR(void, address),
 			   header->length));
-	} else if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_RSDP)) {
+	} else if (ACPI_VALIDATE_RSDP_SIG(header->signature)) {
 
 		/* RSDP has no common fields */
 
diff --git a/drivers/acpi/acpica/tbxfroot.c b/drivers/acpi/acpica/tbxfroot.c
index 948c95e80d44..1c95fabbe6a4 100644
--- a/drivers/acpi/acpica/tbxfroot.c
+++ b/drivers/acpi/acpica/tbxfroot.c
@@ -68,8 +68,7 @@ acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp)
 	 * Note: Sometimes there exists more than one RSDP in memory; the valid
 	 * RSDP has a valid checksum, all others have an invalid checksum.
 	 */
-	if (ACPI_STRNCMP((char *)rsdp->signature, ACPI_SIG_RSDP,
-			 sizeof(ACPI_SIG_RSDP) - 1) != 0) {
+	if (!ACPI_VALIDATE_RSDP_SIG(rsdp->signature)) {
 
 		/* Nope, BAD Signature */
 
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 850f75027fb6..54006720af8e 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -474,6 +474,11 @@ typedef u64 acpi_integer;
 #define ACPI_MOVE_NAME(dest,src)        (ACPI_STRNCPY (ACPI_CAST_PTR (char, (dest)), ACPI_CAST_PTR (char, (src)), ACPI_NAME_SIZE))
 #endif
 
+/* Support for the special RSDP signature (8 characters) */
+
+#define ACPI_VALIDATE_RSDP_SIG(a)       (!ACPI_STRNCMP (ACPI_CAST_PTR (char, (a)), ACPI_SIG_RSDP, 8))
+#define ACPI_MAKE_RSDP_SIG(dest)        (ACPI_MEMCPY (ACPI_CAST_PTR (char, (dest)), ACPI_SIG_RSDP, 8))
+
 /*******************************************************************************
  *
  * Miscellaneous constants
-- 
cgit 


From 31e93a166c7cfa6d5ff0bae0c19f0541f06f2260 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Mon, 23 Sep 2013 09:52:40 +0800
Subject: ACPICA: Cleanup exception codes.

This patch adds AE_ACCESS for EACCES or EPERM.  Some error prompts are
also cleaned up in this patch.  Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/acpi/acexcep.h | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/include/acpi/acexcep.h b/include/acpi/acexcep.h
index cf051e05a8fe..4e280bd226dd 100644
--- a/include/acpi/acexcep.h
+++ b/include/acpi/acexcep.h
@@ -125,8 +125,9 @@ struct acpi_exception_info {
 #define AE_NO_HANDLER                   EXCEP_ENV (0x001A)
 #define AE_OWNER_ID_LIMIT               EXCEP_ENV (0x001B)
 #define AE_NOT_CONFIGURED               EXCEP_ENV (0x001C)
+#define AE_ACCESS                       EXCEP_ENV (0x001D)
 
-#define AE_CODE_ENV_MAX                 0x001C
+#define AE_CODE_ENV_MAX                 0x001D
 
 /*
  * Programmer exceptions
@@ -227,7 +228,7 @@ static const struct acpi_exception_info acpi_gbl_exception_names_env[] = {
 	EXCEP_TXT("AE_NO_ACPI_TABLES", "ACPI tables could not be found"),
 	EXCEP_TXT("AE_NO_NAMESPACE", "A namespace has not been loaded"),
 	EXCEP_TXT("AE_NO_MEMORY", "Insufficient dynamic memory"),
-	EXCEP_TXT("AE_NOT_FOUND", "The name was not found in the namespace"),
+	EXCEP_TXT("AE_NOT_FOUND", "A requested entity is not found"),
 	EXCEP_TXT("AE_NOT_EXIST", "A required entity does not exist"),
 	EXCEP_TXT("AE_ALREADY_EXISTS", "An entity already exists"),
 	EXCEP_TXT("AE_TYPE", "The object type is incorrect"),
@@ -259,7 +260,8 @@ static const struct acpi_exception_info acpi_gbl_exception_names_env[] = {
 	EXCEP_TXT("AE_OWNER_ID_LIMIT",
 		  "There are no more Owner IDs available for ACPI tables or control methods"),
 	EXCEP_TXT("AE_NOT_CONFIGURED",
-		  "The interface is not part of the current subsystem configuration")
+		  "The interface is not part of the current subsystem configuration"),
+	EXCEP_TXT("AE_ACCESS", "Permission denied for the requested operation")
 };
 
 static const struct acpi_exception_info acpi_gbl_exception_names_pgm[] = {
-- 
cgit 


From c53ae3a60c2494a160140d09637f543562626365 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 23 Sep 2013 09:52:45 +0800
Subject: ACPICA: SCI Handlers: Update handler interface, eliminate unnecessary
 argument.

The SCI interrupt number is not needed for the SCI handlers, and was
just unnecessary overhead.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/evsci.c | 4 +---
 include/acpi/actypes.h      | 2 +-
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/acpica/evsci.c b/drivers/acpi/acpica/evsci.c
index b2f0fb2f57b4..94d9ebddf575 100644
--- a/drivers/acpi/acpica/evsci.c
+++ b/drivers/acpi/acpica/evsci.c
@@ -87,9 +87,7 @@ u32 acpi_ev_sci_dispatch(void)
 
 		/* Invoke the installed handler (at interrupt level) */
 
-		int_status |= sci_handler->address((u32)acpi_gbl_FADT.
-						   sci_interrupt,
-						   sci_handler->context);
+		int_status |= sci_handler->address(sci_handler->context);
 
 		sci_handler = sci_handler->next;
 	}
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 54006720af8e..f6abf23ad0a7 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -951,7 +951,7 @@ typedef void
  * Various handlers and callback procedures
  */
 typedef
-u32 (*acpi_sci_handler) (u32 interrupt_number, void *context);
+u32 (*acpi_sci_handler) (void *context);
 
 typedef
 void (*acpi_gbl_event_handler) (u32 event_type,
-- 
cgit 


From 94d7ba991fe0dd245babc8f227ad5fabe234303f Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Mon, 23 Sep 2013 09:52:53 +0800
Subject: ACPICA: Update version to 20130823.

Version 20130823.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/acpi/acpixf.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 55a4d3ae1477..c7b1475422b3 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -46,7 +46,7 @@
 
 /* Current ACPICA subsystem version in YYYYMMDD format */
 
-#define ACPI_CA_VERSION                 0x20130725
+#define ACPI_CA_VERSION                 0x20130823
 
 #include <acpi/acconfig.h>
 #include <acpi/actypes.h>
-- 
cgit 


From a3c9e45d18ace44d02574518144742a00c7a94ec Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Tue, 10 Sep 2013 09:51:50 -0400
Subject: security: remove erroneous comment about capabilities.o link ordering

Back when we had half ass LSM stacking we had to link capabilities.o
after bigger LSMs so that on initialization the bigger LSM would
register first and the capabilities module would be the one stacked as
the 'seconday'.  Somewhere around 6f0f0fd496333777d53 (back in 2008) we
finally removed the last of the kinda module stacking code but this
comment in the makefile still lives today.

Reported-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
---
 security/Makefile | 1 -
 1 file changed, 1 deletion(-)

diff --git a/security/Makefile b/security/Makefile
index c26c81e92571..a5918e01a4f7 100644
--- a/security/Makefile
+++ b/security/Makefile
@@ -16,7 +16,6 @@ obj-$(CONFIG_MMU)			+= min_addr.o
 # Object file lists
 obj-$(CONFIG_SECURITY)			+= security.o capability.o
 obj-$(CONFIG_SECURITYFS)		+= inode.o
-# Must precede capability.o in order to stack properly.
 obj-$(CONFIG_SECURITY_SELINUX)		+= selinux/built-in.o
 obj-$(CONFIG_SECURITY_SMACK)		+= smack/built-in.o
 obj-$(CONFIG_AUDIT)			+= lsm_audit.o
-- 
cgit 


From b47f77b5a2243768d5cb1f143ce5e6c28baa271a Mon Sep 17 00:00:00 2001
From: Li Zefan <lizefan@huawei.com>
Date: Mon, 23 Sep 2013 16:55:43 +0800
Subject: memcg: convert to use cgroup_is_descendant()

This is a preparation to kill css_id.

Signed-off-by: Li Zefan <lizefan@huawei.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 mm/memcontrol.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index d5ff3ce13029..aa8363ef381c 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -1318,7 +1318,7 @@ bool __mem_cgroup_same_or_subtree(const struct mem_cgroup *root_memcg,
 		return true;
 	if (!root_memcg->use_hierarchy || !memcg)
 		return false;
-	return css_is_ancestor(&memcg->css, &root_memcg->css);
+	return cgroup_is_descendant(memcg->css.cgroup, root_memcg->css.cgroup);
 }
 
 static bool mem_cgroup_same_or_subtree(const struct mem_cgroup *root_memcg,
-- 
cgit 


From 34c00c319ce7eddf79be0cd307acd5630addcbb8 Mon Sep 17 00:00:00 2001
From: Li Zefan <lizefan@huawei.com>
Date: Mon, 23 Sep 2013 16:56:01 +0800
Subject: memcg: convert to use cgroup id

Use cgroup id instead of css id. This is a preparation to kill css id.

Note, as memcg treat 0 as an invalid id, while cgroup id starts with 0,
we define memcg_id == cgroup_id + 1.

Signed-off-by: Li Zefan <lizefan@huawei.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 mm/memcontrol.c | 32 ++++++++++++++++++++++----------
 1 file changed, 22 insertions(+), 10 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index aa8363ef381c..404a13a09efa 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -488,6 +488,23 @@ static inline bool mem_cgroup_is_root(struct mem_cgroup *memcg)
 	return (memcg == root_mem_cgroup);
 }
 
+static inline unsigned short mem_cgroup_id(struct mem_cgroup *memcg)
+{
+	/*
+	 * The ID of the root cgroup is 0, but memcg treat 0 as an
+	 * invalid ID, so we return (cgroup_id + 1).
+	 */
+	return memcg->css.cgroup->id + 1;
+}
+
+static inline struct mem_cgroup *mem_cgroup_from_id(unsigned short id)
+{
+	struct cgroup_subsys_state *css;
+
+	css = css_from_id(id - 1, &mem_cgroup_subsys);
+	return mem_cgroup_from_css(css);
+}
+
 /* Writing them here to avoid exposing memcg's inner layout */
 #if defined(CONFIG_INET) && defined(CONFIG_MEMCG_KMEM)
 
@@ -2709,15 +2726,10 @@ static void __mem_cgroup_cancel_local_charge(struct mem_cgroup *memcg,
  */
 static struct mem_cgroup *mem_cgroup_lookup(unsigned short id)
 {
-	struct cgroup_subsys_state *css;
-
 	/* ID 0 is unused ID */
 	if (!id)
 		return NULL;
-	css = css_lookup(&mem_cgroup_subsys, id);
-	if (!css)
-		return NULL;
-	return mem_cgroup_from_css(css);
+	return mem_cgroup_from_id(id);
 }
 
 struct mem_cgroup *try_get_mem_cgroup_from_page(struct page *page)
@@ -4232,7 +4244,7 @@ mem_cgroup_uncharge_swapcache(struct page *page, swp_entry_t ent, bool swapout)
 	 * css_get() was called in uncharge().
 	 */
 	if (do_swap_account && swapout && memcg)
-		swap_cgroup_record(ent, css_id(&memcg->css));
+		swap_cgroup_record(ent, mem_cgroup_id(memcg));
 }
 #endif
 
@@ -4284,8 +4296,8 @@ static int mem_cgroup_move_swap_account(swp_entry_t entry,
 {
 	unsigned short old_id, new_id;
 
-	old_id = css_id(&from->css);
-	new_id = css_id(&to->css);
+	old_id = mem_cgroup_id(from);
+	new_id = mem_cgroup_id(to);
 
 	if (swap_cgroup_cmpxchg(entry, old_id, new_id) == old_id) {
 		mem_cgroup_swap_statistics(from, false);
@@ -6325,7 +6337,7 @@ static enum mc_target_type get_mctgt_type(struct vm_area_struct *vma,
 	}
 	/* There is a swap entry and a page doesn't exist or isn't charged */
 	if (ent.val && !ret &&
-			css_id(&mc.from->css) == lookup_swap_cgroup_id(ent)) {
+	    mem_cgroup_id(mc.from) == lookup_swap_cgroup_id(ent)) {
 		ret = MC_TARGET_SWAP;
 		if (target)
 			target->ent = ent;
-- 
cgit 


From 4219b2da206b3787dea4950ec53ccbc203f50e5e Mon Sep 17 00:00:00 2001
From: Li Zefan <lizefan@huawei.com>
Date: Mon, 23 Sep 2013 16:56:29 +0800
Subject: memcg: fail to create cgroup if the cgroup id is too big

memcg requires the cgroup id to be smaller than 65536.

This is a preparation to kill css id.

Signed-off-by: Li Zefan <lizefan@huawei.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 mm/memcontrol.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 404a13a09efa..c14039575608 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -488,6 +488,12 @@ static inline bool mem_cgroup_is_root(struct mem_cgroup *memcg)
 	return (memcg == root_mem_cgroup);
 }
 
+/*
+ * We restrict the id in the range of [1, 65535], so it can fit into
+ * an unsigned short.
+ */
+#define MEM_CGROUP_ID_MAX	USHRT_MAX
+
 static inline unsigned short mem_cgroup_id(struct mem_cgroup *memcg)
 {
 	/*
@@ -6059,6 +6065,9 @@ mem_cgroup_css_online(struct cgroup_subsys_state *css)
 	struct mem_cgroup *parent = mem_cgroup_from_css(css_parent(css));
 	int error = 0;
 
+	if (css->cgroup->id > MEM_CGROUP_ID_MAX)
+		return -ENOSPC;
+
 	if (!parent)
 		return 0;
 
-- 
cgit 


From b862783594847a1087cd18c8aeac5727608c3c67 Mon Sep 17 00:00:00 2001
From: Li Zefan <lizefan@huawei.com>
Date: Mon, 23 Sep 2013 16:56:47 +0800
Subject: memcg: stop using css id

Now memcg uses cgroup id instead of css id. Update some comments and
set mem_cgroup_subsys->use_id to 0.

Signed-off-by: Li Zefan <lizefan@huawei.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 mm/memcontrol.c | 24 ++++++++----------------
 1 file changed, 8 insertions(+), 16 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index c14039575608..65a46eff5c3d 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -582,16 +582,11 @@ static void disarm_sock_keys(struct mem_cgroup *memcg)
 #ifdef CONFIG_MEMCG_KMEM
 /*
  * This will be the memcg's index in each cache's ->memcg_params->memcg_caches.
- * There are two main reasons for not using the css_id for this:
- *  1) this works better in sparse environments, where we have a lot of memcgs,
- *     but only a few kmem-limited. Or also, if we have, for instance, 200
- *     memcgs, and none but the 200th is kmem-limited, we'd have to have a
- *     200 entry array for that.
- *
- *  2) In order not to violate the cgroup API, we would like to do all memory
- *     allocation in ->create(). At that point, we haven't yet allocated the
- *     css_id. Having a separate index prevents us from messing with the cgroup
- *     core for this
+ * The main reason for not using cgroup id for this:
+ *  this works better in sparse environments, where we have a lot of memcgs,
+ *  but only a few kmem-limited. Or also, if we have, for instance, 200
+ *  memcgs, and none but the 200th is kmem-limited, we'd have to have a
+ *  200 entry array for that.
  *
  * The current size of the caches array is stored in
  * memcg_limited_groups_array_size.  It will double each time we have to
@@ -606,14 +601,14 @@ int memcg_limited_groups_array_size;
  * cgroups is a reasonable guess. In the future, it could be a parameter or
  * tunable, but that is strictly not necessary.
  *
- * MAX_SIZE should be as large as the number of css_ids. Ideally, we could get
+ * MAX_SIZE should be as large as the number of cgrp_ids. Ideally, we could get
  * this constant directly from cgroup, but it is understandable that this is
  * better kept as an internal representation in cgroup.c. In any case, the
- * css_id space is not getting any smaller, and we don't have to necessarily
+ * cgrp_id space is not getting any smaller, and we don't have to necessarily
  * increase ours as well if it increases.
  */
 #define MEMCG_CACHES_MIN_SIZE 4
-#define MEMCG_CACHES_MAX_SIZE 65535
+#define MEMCG_CACHES_MAX_SIZE MEM_CGROUP_ID_MAX
 
 /*
  * A lot of the calls to the cache allocation functions are expected to be
@@ -5984,8 +5979,6 @@ static void __mem_cgroup_free(struct mem_cgroup *memcg)
 	int node;
 	size_t size = memcg_size();
 
-	free_css_id(&mem_cgroup_subsys, &memcg->css);
-
 	for_each_node(node)
 		free_mem_cgroup_per_zone_info(memcg, node);
 
@@ -6766,7 +6759,6 @@ struct cgroup_subsys mem_cgroup_subsys = {
 	.bind = mem_cgroup_bind,
 	.base_cftypes = mem_cgroup_files,
 	.early_init = 0,
-	.use_id = 1,
 };
 
 #ifdef CONFIG_MEMCG_SWAP
-- 
cgit 


From 2ff2a7d03bbe472ed44a8380dbdbea490d81c59d Mon Sep 17 00:00:00 2001
From: Li Zefan <lizefan@huawei.com>
Date: Mon, 23 Sep 2013 16:57:03 +0800
Subject: cgroup: kill css_id

The only user of css_id was memcg, and it has been convered to use
cgroup->id, so kill css_id.

Signed-off-by: Li Zefan <lizefan@huwei.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 include/linux/cgroup.h |  37 --------
 kernel/cgroup.c        | 248 +------------------------------------------------
 2 files changed, 1 insertion(+), 284 deletions(-)

diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 3561d305b1e0..39c1d9469677 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -612,11 +612,6 @@ struct cgroup_subsys {
 	int subsys_id;
 	int disabled;
 	int early_init;
-	/*
-	 * True if this subsys uses ID. ID is not available before cgroup_init()
-	 * (not available in early_init time.)
-	 */
-	bool use_id;
 
 	/*
 	 * If %false, this subsystem is properly hierarchical -
@@ -642,9 +637,6 @@ struct cgroup_subsys {
 	 */
 	struct cgroupfs_root *root;
 	struct list_head sibling;
-	/* used when use_id == true */
-	struct idr idr;
-	spinlock_t id_lock;
 
 	/* list of cftype_sets */
 	struct list_head cftsets;
@@ -875,35 +867,6 @@ int css_scan_tasks(struct cgroup_subsys_state *css,
 int cgroup_attach_task_all(struct task_struct *from, struct task_struct *);
 int cgroup_transfer_tasks(struct cgroup *to, struct cgroup *from);
 
-/*
- * CSS ID is ID for cgroup_subsys_state structs under subsys. This only works
- * if cgroup_subsys.use_id == true. It can be used for looking up and scanning.
- * CSS ID is assigned at cgroup allocation (create) automatically
- * and removed when subsys calls free_css_id() function. This is because
- * the lifetime of cgroup_subsys_state is subsys's matter.
- *
- * Looking up and scanning function should be called under rcu_read_lock().
- * Taking cgroup_mutex is not necessary for following calls.
- * But the css returned by this routine can be "not populated yet" or "being
- * destroyed". The caller should check css and cgroup's status.
- */
-
-/*
- * Typically Called at ->destroy(), or somewhere the subsys frees
- * cgroup_subsys_state.
- */
-void free_css_id(struct cgroup_subsys *ss, struct cgroup_subsys_state *css);
-
-/* Find a cgroup_subsys_state which has given ID */
-
-struct cgroup_subsys_state *css_lookup(struct cgroup_subsys *ss, int id);
-
-/* Returns true if root is ancestor of cg */
-bool css_is_ancestor(struct cgroup_subsys_state *cg,
-		     const struct cgroup_subsys_state *root);
-
-/* Get id and depth of css */
-unsigned short css_id(struct cgroup_subsys_state *css);
 struct cgroup_subsys_state *css_from_dir(struct dentry *dentry,
 					 struct cgroup_subsys *ss);
 
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 2418b6e71a85..a5629f1df13a 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -124,38 +124,6 @@ struct cfent {
 	struct simple_xattrs		xattrs;
 };
 
-/*
- * CSS ID -- ID per subsys's Cgroup Subsys State(CSS). used only when
- * cgroup_subsys->use_id != 0.
- */
-#define CSS_ID_MAX	(65535)
-struct css_id {
-	/*
-	 * The css to which this ID points. This pointer is set to valid value
-	 * after cgroup is populated. If cgroup is removed, this will be NULL.
-	 * This pointer is expected to be RCU-safe because destroy()
-	 * is called after synchronize_rcu(). But for safe use, css_tryget()
-	 * should be used for avoiding race.
-	 */
-	struct cgroup_subsys_state __rcu *css;
-	/*
-	 * ID of this css.
-	 */
-	unsigned short id;
-	/*
-	 * Depth in hierarchy which this ID belongs to.
-	 */
-	unsigned short depth;
-	/*
-	 * ID is freed by RCU. (and lookup routine is RCU safe.)
-	 */
-	struct rcu_head rcu_head;
-	/*
-	 * Hierarchy of CSS ID belongs to.
-	 */
-	unsigned short stack[0]; /* Array of Length (depth+1) */
-};
-
 /*
  * cgroup_event represents events which userspace want to receive.
  */
@@ -387,9 +355,6 @@ struct cgrp_cset_link {
 static struct css_set init_css_set;
 static struct cgrp_cset_link init_cgrp_cset_link;
 
-static int cgroup_init_idr(struct cgroup_subsys *ss,
-			   struct cgroup_subsys_state *css);
-
 /*
  * css_set_lock protects the list of css_set objects, and the chain of
  * tasks off each css_set.  Nests outside task->alloc_lock due to
@@ -841,8 +806,6 @@ static struct backing_dev_info cgroup_backing_dev_info = {
 	.capabilities	= BDI_CAP_NO_ACCT_AND_WRITEBACK,
 };
 
-static int alloc_css_id(struct cgroup_subsys_state *child_css);
-
 static struct inode *cgroup_new_inode(umode_t mode, struct super_block *sb)
 {
 	struct inode *inode = new_inode(sb);
@@ -4242,21 +4205,6 @@ static int cgroup_populate_dir(struct cgroup *cgrp, unsigned long subsys_mask)
 				goto err;
 		}
 	}
-
-	/* This cgroup is ready now */
-	for_each_root_subsys(cgrp->root, ss) {
-		struct cgroup_subsys_state *css = cgroup_css(cgrp, ss);
-		struct css_id *id = rcu_dereference_protected(css->id, true);
-
-		/*
-		 * Update id->css pointer and make this css visible from
-		 * CSS ID functions. This pointer will be dereferened
-		 * from RCU-read-side without locks.
-		 */
-		if (id)
-			rcu_assign_pointer(id->css, css);
-	}
-
 	return 0;
 err:
 	cgroup_clear_dir(cgrp, subsys_mask);
@@ -4325,7 +4273,6 @@ static void init_css(struct cgroup_subsys_state *css, struct cgroup_subsys *ss,
 	css->cgroup = cgrp;
 	css->ss = ss;
 	css->flags = 0;
-	css->id = NULL;
 
 	if (cgrp->parent)
 		css->parent = cgroup_css(cgrp->parent, ss);
@@ -4457,12 +4404,6 @@ static long cgroup_create(struct cgroup *parent, struct dentry *dentry,
 			goto err_free_all;
 
 		init_css(css, ss, cgrp);
-
-		if (ss->use_id) {
-			err = alloc_css_id(css);
-			if (err)
-				goto err_free_all;
-		}
 	}
 
 	/*
@@ -4927,12 +4868,6 @@ int __init_or_module cgroup_load_subsys(struct cgroup_subsys *ss)
 
 	/* our new subsystem will be attached to the dummy hierarchy. */
 	init_css(css, ss, cgroup_dummy_top);
-	/* init_idr must be after init_css() because it sets css->id. */
-	if (ss->use_id) {
-		ret = cgroup_init_idr(ss, css);
-		if (ret)
-			goto err_unload;
-	}
 
 	/*
 	 * Now we need to entangle the css into the existing css_sets. unlike
@@ -4998,9 +4933,6 @@ void cgroup_unload_subsys(struct cgroup_subsys *ss)
 
 	offline_css(cgroup_css(cgroup_dummy_top, ss));
 
-	if (ss->use_id)
-		idr_destroy(&ss->idr);
-
 	/* deassign the subsys_id */
 	cgroup_subsys[ss->subsys_id] = NULL;
 
@@ -5027,8 +4959,7 @@ void cgroup_unload_subsys(struct cgroup_subsys *ss)
 	/*
 	 * remove subsystem's css from the cgroup_dummy_top and free it -
 	 * need to free before marking as null because ss->css_free needs
-	 * the cgrp->subsys pointer to find their state. note that this
-	 * also takes care of freeing the css_id.
+	 * the cgrp->subsys pointer to find their state.
 	 */
 	ss->css_free(cgroup_css(cgroup_dummy_top, ss));
 	RCU_INIT_POINTER(cgroup_dummy_top->subsys[ss->subsys_id], NULL);
@@ -5099,8 +5030,6 @@ int __init cgroup_init(void)
 	for_each_builtin_subsys(ss, i) {
 		if (!ss->early_init)
 			cgroup_init_subsys(ss);
-		if (ss->use_id)
-			cgroup_init_idr(ss, init_css_set.subsys[ss->subsys_id]);
 	}
 
 	/* allocate id for the dummy hierarchy */
@@ -5520,181 +5449,6 @@ static int __init cgroup_disable(char *str)
 }
 __setup("cgroup_disable=", cgroup_disable);
 
-/*
- * Functons for CSS ID.
- */
-
-/* to get ID other than 0, this should be called when !cgroup_is_dead() */
-unsigned short css_id(struct cgroup_subsys_state *css)
-{
-	struct css_id *cssid;
-
-	/*
-	 * This css_id() can return correct value when somone has refcnt
-	 * on this or this is under rcu_read_lock(). Once css->id is allocated,
-	 * it's unchanged until freed.
-	 */
-	cssid = rcu_dereference_raw(css->id);
-
-	if (cssid)
-		return cssid->id;
-	return 0;
-}
-EXPORT_SYMBOL_GPL(css_id);
-
-/**
- *  css_is_ancestor - test "root" css is an ancestor of "child"
- * @child: the css to be tested.
- * @root: the css supporsed to be an ancestor of the child.
- *
- * Returns true if "root" is an ancestor of "child" in its hierarchy. Because
- * this function reads css->id, the caller must hold rcu_read_lock().
- * But, considering usual usage, the csses should be valid objects after test.
- * Assuming that the caller will do some action to the child if this returns
- * returns true, the caller must take "child";s reference count.
- * If "child" is valid object and this returns true, "root" is valid, too.
- */
-
-bool css_is_ancestor(struct cgroup_subsys_state *child,
-		    const struct cgroup_subsys_state *root)
-{
-	struct css_id *child_id;
-	struct css_id *root_id;
-
-	child_id  = rcu_dereference(child->id);
-	if (!child_id)
-		return false;
-	root_id = rcu_dereference(root->id);
-	if (!root_id)
-		return false;
-	if (child_id->depth < root_id->depth)
-		return false;
-	if (child_id->stack[root_id->depth] != root_id->id)
-		return false;
-	return true;
-}
-
-void free_css_id(struct cgroup_subsys *ss, struct cgroup_subsys_state *css)
-{
-	struct css_id *id = rcu_dereference_protected(css->id, true);
-
-	/* When this is called before css_id initialization, id can be NULL */
-	if (!id)
-		return;
-
-	BUG_ON(!ss->use_id);
-
-	rcu_assign_pointer(id->css, NULL);
-	rcu_assign_pointer(css->id, NULL);
-	spin_lock(&ss->id_lock);
-	idr_remove(&ss->idr, id->id);
-	spin_unlock(&ss->id_lock);
-	kfree_rcu(id, rcu_head);
-}
-EXPORT_SYMBOL_GPL(free_css_id);
-
-/*
- * This is called by init or create(). Then, calls to this function are
- * always serialized (By cgroup_mutex() at create()).
- */
-
-static struct css_id *get_new_cssid(struct cgroup_subsys *ss, int depth)
-{
-	struct css_id *newid;
-	int ret, size;
-
-	BUG_ON(!ss->use_id);
-
-	size = sizeof(*newid) + sizeof(unsigned short) * (depth + 1);
-	newid = kzalloc(size, GFP_KERNEL);
-	if (!newid)
-		return ERR_PTR(-ENOMEM);
-
-	idr_preload(GFP_KERNEL);
-	spin_lock(&ss->id_lock);
-	/* Don't use 0. allocates an ID of 1-65535 */
-	ret = idr_alloc(&ss->idr, newid, 1, CSS_ID_MAX + 1, GFP_NOWAIT);
-	spin_unlock(&ss->id_lock);
-	idr_preload_end();
-
-	/* Returns error when there are no free spaces for new ID.*/
-	if (ret < 0)
-		goto err_out;
-
-	newid->id = ret;
-	newid->depth = depth;
-	return newid;
-err_out:
-	kfree(newid);
-	return ERR_PTR(ret);
-
-}
-
-static int __init_or_module cgroup_init_idr(struct cgroup_subsys *ss,
-					    struct cgroup_subsys_state *rootcss)
-{
-	struct css_id *newid;
-
-	spin_lock_init(&ss->id_lock);
-	idr_init(&ss->idr);
-
-	newid = get_new_cssid(ss, 0);
-	if (IS_ERR(newid))
-		return PTR_ERR(newid);
-
-	newid->stack[0] = newid->id;
-	RCU_INIT_POINTER(newid->css, rootcss);
-	RCU_INIT_POINTER(rootcss->id, newid);
-	return 0;
-}
-
-static int alloc_css_id(struct cgroup_subsys_state *child_css)
-{
-	struct cgroup_subsys_state *parent_css = css_parent(child_css);
-	struct css_id *child_id, *parent_id;
-	int i, depth;
-
-	parent_id = rcu_dereference_protected(parent_css->id, true);
-	depth = parent_id->depth + 1;
-
-	child_id = get_new_cssid(child_css->ss, depth);
-	if (IS_ERR(child_id))
-		return PTR_ERR(child_id);
-
-	for (i = 0; i < depth; i++)
-		child_id->stack[i] = parent_id->stack[i];
-	child_id->stack[depth] = child_id->id;
-	/*
-	 * child_id->css pointer will be set after this cgroup is available
-	 * see cgroup_populate_dir()
-	 */
-	rcu_assign_pointer(child_css->id, child_id);
-
-	return 0;
-}
-
-/**
- * css_lookup - lookup css by id
- * @ss: cgroup subsys to be looked into.
- * @id: the id
- *
- * Returns pointer to cgroup_subsys_state if there is valid one with id.
- * NULL if not. Should be called under rcu_read_lock()
- */
-struct cgroup_subsys_state *css_lookup(struct cgroup_subsys *ss, int id)
-{
-	struct css_id *cssid = NULL;
-
-	BUG_ON(!ss->use_id);
-	cssid = idr_find(&ss->idr, id);
-
-	if (unlikely(!cssid))
-		return NULL;
-
-	return rcu_dereference(cssid->css);
-}
-EXPORT_SYMBOL_GPL(css_lookup);
-
 /**
  * css_from_dir - get corresponding css from the dentry of a cgroup dir
  * @dentry: directory dentry of interest
-- 
cgit 


From 5a5f2acfd04269e2e0958067216b68ff461c285c Mon Sep 17 00:00:00 2001
From: Paul Moore <pmoore@redhat.com>
Date: Wed, 18 Sep 2013 13:14:04 -0400
Subject: selinux: add Paul Moore as a SELinux maintainer

Signed-off-by: Paul Moore <paul@paul-moore.com>
Acked-by: Eric Paris <eparis@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
---
 MAINTAINERS | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index e61c2e83fc2b..4fde7066de70 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7390,9 +7390,10 @@ SELINUX SECURITY MODULE
 M:	Stephen Smalley <sds@tycho.nsa.gov>
 M:	James Morris <james.l.morris@oracle.com>
 M:	Eric Paris <eparis@parisplace.org>
+M:	Paul Moore <paul@paul-moore.com>
 L:	selinux@tycho.nsa.gov (subscribers-only, general discussion)
 W:	http://selinuxproject.org
-T:	git git://git.infradead.org/users/eparis/selinux.git
+T:	git git://git.infradead.org/users/pcmoore/selinux
 S:	Supported
 F:	include/linux/selinux*
 F:	security/selinux/
-- 
cgit 


From 131a10a39545cce2f569a760e4470ebd988132b0 Mon Sep 17 00:00:00 2001
From: Philip Avinash <avinashphilip@ti.com>
Date: Sun, 18 Aug 2013 10:48:57 +0530
Subject: gpio: davinci: coding style correction

Make some minor coding style fixes. Use proper multi-line
commenting style, and use a macro for register offset.

Signed-off-by: Philip Avinash <avinashphilip@ti.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
[nsekhar@ti.com: drop changes which are considered
		 unnecessary churn - line break fixes
		 variable name changes and include file
		 reordering]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
---
 drivers/gpio/gpio-davinci.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c
index 17df6db5dca7..cb947a1266ae 100644
--- a/drivers/gpio/gpio-davinci.c
+++ b/drivers/gpio/gpio-davinci.c
@@ -31,6 +31,8 @@ struct davinci_gpio_regs {
 	u32	intstat;
 };
 
+#define BINTEN	0x8 /* GPIO Interrupt Per-Bank Enable Register */
+
 #define chip2controller(chip)	\
 	container_of(chip, struct davinci_gpio_controller, chip)
 
@@ -304,7 +306,8 @@ static int gpio_to_irq_unbanked(struct gpio_chip *chip, unsigned offset)
 {
 	struct davinci_soc_info *soc_info = &davinci_soc_info;
 
-	/* NOTE:  we assume for now that only irqs in the first gpio_chip
+	/*
+	 * NOTE:  we assume for now that only irqs in the first gpio_chip
 	 * can provide direct-mapped IRQs to AINTC (up to 32 GPIOs).
 	 */
 	if (offset < soc_info->gpio_unbanked)
@@ -368,7 +371,8 @@ static int __init davinci_gpio_irq_setup(void)
 	}
 	clk_prepare_enable(clk);
 
-	/* Arrange gpio_to_irq() support, handling either direct IRQs or
+	/*
+	 * Arrange gpio_to_irq() support, handling either direct IRQs or
 	 * banked IRQs.  Having GPIOs in the first GPIO bank use direct
 	 * IRQs, while the others use banked IRQs, would need some setup
 	 * tweaks to recognize hardware which can do that.
@@ -450,10 +454,11 @@ static int __init davinci_gpio_irq_setup(void)
 	}
 
 done:
-	/* BINTEN -- per-bank interrupt enable. genirq would also let these
+	/*
+	 * BINTEN -- per-bank interrupt enable. genirq would also let these
 	 * bits be set/cleared dynamically.
 	 */
-	__raw_writel(binten, gpio_base + 0x08);
+	__raw_writel(binten, gpio_base + BINTEN);
 
 	printk(KERN_INFO "DaVinci: %d gpio irqs\n", irq - gpio_to_irq(0));
 
-- 
cgit 


From 118150f22d6b4431a1fe2e715de314a5d93836f5 Mon Sep 17 00:00:00 2001
From: KV Sujith <sujithkv@ti.com>
Date: Sun, 18 Aug 2013 10:48:58 +0530
Subject: gpio: davinci: move to platform device

Modify DaVinci GPIO driver to become a platform device
driver.

The driver does not have platform driver structure or
a probe. Instead, it has pure_initcall function for
initialization. The platform specific informaiton is
obtained using the DaVinci specific davinci_soc_info
structure. This is a problem for Device Tree (DT)
implementation.

As a first stage of DT conversion, we implement a probe.

Additional notes:

- The driver registration happens as  postcore_initcall.
  This is required since machine init functions like
  da850_lcd_hw_init() make use of GPIO.
- Start using devres APIs for simpler error handling.

Signed-off-by: KV Sujith <sujithkv@ti.com>
[avinashphilip@ti.com: Move global definition of
		       "davinci_gpio_controller" to local]
Signed-off-by: Philip Avinash <avinashphilip@ti.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
[nsekhar@ti.com: drop unused structure member, rebase to new
		 clean-up patch and fix error messages]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
---
 arch/arm/mach-davinci/include/mach/gpio-davinci.h |   1 +
 drivers/gpio/gpio-davinci.c                       | 119 +++++++++++++++-------
 include/linux/platform_data/gpio-davinci.h        |  25 +++++
 3 files changed, 107 insertions(+), 38 deletions(-)
 create mode 100644 include/linux/platform_data/gpio-davinci.h

diff --git a/arch/arm/mach-davinci/include/mach/gpio-davinci.h b/arch/arm/mach-davinci/include/mach/gpio-davinci.h
index 1fdd1fd35448..551ba43a763e 100644
--- a/arch/arm/mach-davinci/include/mach/gpio-davinci.h
+++ b/arch/arm/mach-davinci/include/mach/gpio-davinci.h
@@ -60,6 +60,7 @@ struct davinci_gpio_controller {
 	void __iomem		*set_data;
 	void __iomem		*clr_data;
 	void __iomem		*in_data;
+	unsigned		gpio_irq;
 };
 
 /* The __gpio_to_controller() and __gpio_mask() functions inline to constants
diff --git a/drivers/gpio/gpio-davinci.c b/drivers/gpio/gpio-davinci.c
index cb947a1266ae..8847adf392b7 100644
--- a/drivers/gpio/gpio-davinci.c
+++ b/drivers/gpio/gpio-davinci.c
@@ -15,8 +15,9 @@
 #include <linux/clk.h>
 #include <linux/err.h>
 #include <linux/io.h>
-
-#include <asm/mach/irq.h>
+#include <linux/irq.h>
+#include <linux/platform_device.h>
+#include <linux/platform_data/gpio-davinci.h>
 
 struct davinci_gpio_regs {
 	u32	dir;
@@ -36,10 +37,9 @@ struct davinci_gpio_regs {
 #define chip2controller(chip)	\
 	container_of(chip, struct davinci_gpio_controller, chip)
 
-static struct davinci_gpio_controller chips[DIV_ROUND_UP(DAVINCI_N_GPIO, 32)];
 static void __iomem *gpio_base;
 
-static struct davinci_gpio_regs __iomem __init *gpio2regs(unsigned gpio)
+static struct davinci_gpio_regs __iomem *gpio2regs(unsigned gpio)
 {
 	void __iomem *ptr;
 
@@ -67,7 +67,7 @@ static inline struct davinci_gpio_regs __iomem *irq2regs(int irq)
 	return g;
 }
 
-static int __init davinci_gpio_irq_setup(void);
+static int davinci_gpio_irq_setup(struct platform_device *pdev);
 
 /*--------------------------------------------------------------------------*/
 
@@ -133,33 +133,53 @@ davinci_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 	__raw_writel((1 << offset), value ? &g->set_data : &g->clr_data);
 }
 
-static int __init davinci_gpio_setup(void)
+static int davinci_gpio_probe(struct platform_device *pdev)
 {
 	int i, base;
 	unsigned ngpio;
-	struct davinci_soc_info *soc_info = &davinci_soc_info;
-	struct davinci_gpio_regs *regs;
-
-	if (soc_info->gpio_type != GPIO_TYPE_DAVINCI)
-		return 0;
+	struct davinci_gpio_controller *chips;
+	struct davinci_gpio_platform_data *pdata;
+	struct davinci_gpio_regs __iomem *regs;
+	struct device *dev = &pdev->dev;
+	struct resource *res;
+
+	pdata = dev->platform_data;
+	if (!pdata) {
+		dev_err(dev, "No platform data found\n");
+		return -EINVAL;
+	}
 
 	/*
 	 * The gpio banks conceptually expose a segmented bitmap,
 	 * and "ngpio" is one more than the largest zero-based
 	 * bit index that's valid.
 	 */
-	ngpio = soc_info->gpio_num;
+	ngpio = pdata->ngpio;
 	if (ngpio == 0) {
-		pr_err("GPIO setup:  how many GPIOs?\n");
+		dev_err(dev, "How many GPIOs?\n");
 		return -EINVAL;
 	}
 
 	if (WARN_ON(DAVINCI_N_GPIO < ngpio))
 		ngpio = DAVINCI_N_GPIO;
 
-	gpio_base = ioremap(soc_info->gpio_base, SZ_4K);
-	if (WARN_ON(!gpio_base))
+	chips = devm_kzalloc(dev,
+			     ngpio * sizeof(struct davinci_gpio_controller),
+			     GFP_KERNEL);
+	if (!chips) {
+		dev_err(dev, "Memory allocation failed\n");
 		return -ENOMEM;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(dev, "Invalid memory resource\n");
+		return -EBUSY;
+	}
+
+	gpio_base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(gpio_base))
+		return PTR_ERR(gpio_base);
 
 	for (i = 0, base = 0; base < ngpio; i++, base += 32) {
 		chips[i].chip.label = "DaVinci";
@@ -185,13 +205,10 @@ static int __init davinci_gpio_setup(void)
 		gpiochip_add(&chips[i].chip);
 	}
 
-	soc_info->gpio_ctlrs = chips;
-	soc_info->gpio_ctlrs_num = DIV_ROUND_UP(ngpio, 32);
-
-	davinci_gpio_irq_setup();
+	platform_set_drvdata(pdev, chips);
+	davinci_gpio_irq_setup(pdev);
 	return 0;
 }
-pure_initcall(davinci_gpio_setup);
 
 /*--------------------------------------------------------------------------*/
 /*
@@ -304,14 +321,14 @@ static int gpio_to_irq_banked(struct gpio_chip *chip, unsigned offset)
 
 static int gpio_to_irq_unbanked(struct gpio_chip *chip, unsigned offset)
 {
-	struct davinci_soc_info *soc_info = &davinci_soc_info;
+	struct davinci_gpio_controller *d = chip2controller(chip);
 
 	/*
 	 * NOTE:  we assume for now that only irqs in the first gpio_chip
 	 * can provide direct-mapped IRQs to AINTC (up to 32 GPIOs).
 	 */
-	if (offset < soc_info->gpio_unbanked)
-		return soc_info->gpio_irq + offset;
+	if (offset < d->irq_base)
+		return d->gpio_irq + offset;
 	else
 		return -ENODEV;
 }
@@ -320,12 +337,11 @@ static int gpio_irq_type_unbanked(struct irq_data *data, unsigned trigger)
 {
 	struct davinci_gpio_controller *d;
 	struct davinci_gpio_regs __iomem *g;
-	struct davinci_soc_info *soc_info = &davinci_soc_info;
 	u32 mask;
 
 	d = (struct davinci_gpio_controller *)data->handler_data;
 	g = (struct davinci_gpio_regs __iomem *)d->regs;
-	mask = __gpio_mask(data->irq - soc_info->gpio_irq);
+	mask = __gpio_mask(data->irq - d->gpio_irq);
 
 	if (trigger & ~(IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_EDGE_RISING))
 		return -EINVAL;
@@ -346,24 +362,33 @@ static int gpio_irq_type_unbanked(struct irq_data *data, unsigned trigger)
  * (dm6446) can be set appropriately for GPIOV33 pins.
  */
 
-static int __init davinci_gpio_irq_setup(void)
+static int davinci_gpio_irq_setup(struct platform_device *pdev)
 {
 	unsigned	gpio, irq, bank;
 	struct clk	*clk;
 	u32		binten = 0;
 	unsigned	ngpio, bank_irq;
-	struct davinci_soc_info *soc_info = &davinci_soc_info;
-	struct davinci_gpio_regs	__iomem *g;
+	struct device *dev = &pdev->dev;
+	struct resource	*res;
+	struct davinci_gpio_controller *chips = platform_get_drvdata(pdev);
+	struct davinci_gpio_platform_data *pdata = dev->platform_data;
+	struct davinci_gpio_regs __iomem *g;
 
-	ngpio = soc_info->gpio_num;
+	ngpio = pdata->ngpio;
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!res) {
+		dev_err(dev, "Invalid IRQ resource\n");
+		return -EBUSY;
+	}
 
-	bank_irq = soc_info->gpio_irq;
-	if (bank_irq == 0) {
-		printk(KERN_ERR "Don't know first GPIO bank IRQ.\n");
-		return -EINVAL;
+	bank_irq = res->start;
+
+	if (!bank_irq) {
+		dev_err(dev, "Invalid IRQ resource\n");
+		return -ENODEV;
 	}
 
-	clk = clk_get(NULL, "gpio");
+	clk = devm_clk_get(dev, "gpio");
 	if (IS_ERR(clk)) {
 		printk(KERN_ERR "Error %ld getting gpio clock?\n",
 		       PTR_ERR(clk));
@@ -379,9 +404,9 @@ static int __init davinci_gpio_irq_setup(void)
 	 */
 	for (gpio = 0, bank = 0; gpio < ngpio; bank++, gpio += 32) {
 		chips[bank].chip.to_irq = gpio_to_irq_banked;
-		chips[bank].irq_base = soc_info->gpio_unbanked
+		chips[bank].irq_base = pdata->gpio_unbanked
 			? -EINVAL
-			: (soc_info->intc_irq_num + gpio);
+			: (pdata->intc_irq_num + gpio);
 	}
 
 	/*
@@ -389,7 +414,7 @@ static int __init davinci_gpio_irq_setup(void)
 	 * controller only handling trigger modes.  We currently assume no
 	 * IRQ mux conflicts; gpio_irq_type_unbanked() is only for GPIOs.
 	 */
-	if (soc_info->gpio_unbanked) {
+	if (pdata->gpio_unbanked) {
 		static struct irq_chip_type gpio_unbanked;
 
 		/* pass "bank 0" GPIO IRQs to AINTC */
@@ -409,7 +434,7 @@ static int __init davinci_gpio_irq_setup(void)
 		__raw_writel(~0, &g->set_rising);
 
 		/* set the direct IRQs up to use that irqchip */
-		for (gpio = 0; gpio < soc_info->gpio_unbanked; gpio++, irq++) {
+		for (gpio = 0; gpio < pdata->gpio_unbanked; gpio++, irq++) {
 			irq_set_chip(irq, &gpio_unbanked.chip);
 			irq_set_handler_data(irq, &chips[gpio / 32]);
 			irq_set_status_flags(irq, IRQ_TYPE_EDGE_BOTH);
@@ -464,3 +489,21 @@ done:
 
 	return 0;
 }
+
+static struct platform_driver davinci_gpio_driver = {
+	.probe		= davinci_gpio_probe,
+	.driver		= {
+		.name	= "davinci_gpio",
+		.owner	= THIS_MODULE,
+	},
+};
+
+/**
+ * GPIO driver registration needs to be done before machine_init functions
+ * access GPIO. Hence davinci_gpio_drv_reg() is a postcore_initcall.
+ */
+static int __init davinci_gpio_drv_reg(void)
+{
+	return platform_driver_register(&davinci_gpio_driver);
+}
+postcore_initcall(davinci_gpio_drv_reg);
diff --git a/include/linux/platform_data/gpio-davinci.h b/include/linux/platform_data/gpio-davinci.h
new file mode 100644
index 000000000000..2fcc125af1aa
--- /dev/null
+++ b/include/linux/platform_data/gpio-davinci.h
@@ -0,0 +1,25 @@
+/*
+ * DaVinci GPIO Platform Related Defines
+ *
+ * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __DAVINCI_GPIO_PLATFORM_H
+#define __DAVINCI_GPIO_PLATFORM_H
+
+struct davinci_gpio_platform_data {
+	u32	ngpio;
+	u32	gpio_unbanked;
+	u32	intc_irq_num;
+};
+
+#endif
-- 
cgit 


From f606d38de74a2f2d43d4a57317aaa8f05809fdef Mon Sep 17 00:00:00 2001
From: KV Sujith <sujithkv@ti.com>
Date: Sun, 18 Aug 2013 10:48:59 +0530
Subject: ARM: davinci: da8xx: support gpio platform device

DaVinci GPIO driver now uses platform device model.
Convert DA8XX SoC code to use the new model.

Add da8xx_register_gpio() to create platform device for da8xx
platforms.

Signed-off-by: KV Sujith <sujithkv@ti.com>
Signed-off-by: Philip Avinash <avinashphilip@ti.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
[nsekhar@ti.com: simplify commit message]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
---
 arch/arm/mach-davinci/da830.c              | 16 +++++++++++-----
 arch/arm/mach-davinci/da850.c              | 16 +++++++++++-----
 arch/arm/mach-davinci/devices-da8xx.c      | 26 ++++++++++++++++++++++++++
 arch/arm/mach-davinci/include/mach/da8xx.h |  3 +++
 4 files changed, 51 insertions(+), 10 deletions(-)

diff --git a/arch/arm/mach-davinci/da830.c b/arch/arm/mach-davinci/da830.c
index d6c746e35ad9..0813b5167e05 100644
--- a/arch/arm/mach-davinci/da830.c
+++ b/arch/arm/mach-davinci/da830.c
@@ -11,6 +11,7 @@
 #include <linux/gpio.h>
 #include <linux/init.h>
 #include <linux/clk.h>
+#include <linux/platform_data/gpio-davinci.h>
 
 #include <asm/mach/map.h>
 
@@ -20,7 +21,6 @@
 #include <mach/common.h>
 #include <mach/time.h>
 #include <mach/da8xx.h>
-#include <mach/gpio-davinci.h>
 
 #include "clock.h"
 #include "mux.h"
@@ -1151,6 +1151,16 @@ static struct davinci_id da830_ids[] = {
 	},
 };
 
+static struct davinci_gpio_platform_data da830_gpio_platform_data = {
+	.ngpio = 128,
+	.intc_irq_num = DA830_N_CP_INTC_IRQ,
+};
+
+int __init da830_register_gpio(void)
+{
+	return da8xx_register_gpio(&da830_gpio_platform_data);
+}
+
 static struct davinci_timer_instance da830_timer_instance[2] = {
 	{
 		.base		= DA8XX_TIMER64P0_BASE,
@@ -1196,10 +1206,6 @@ static struct davinci_soc_info davinci_soc_info_da830 = {
 	.intc_irq_prios		= da830_default_priorities,
 	.intc_irq_num		= DA830_N_CP_INTC_IRQ,
 	.timer_info		= &da830_timer_info,
-	.gpio_type		= GPIO_TYPE_DAVINCI,
-	.gpio_base		= DA8XX_GPIO_BASE,
-	.gpio_num		= 128,
-	.gpio_irq		= IRQ_DA8XX_GPIO0,
 	.emac_pdata		= &da8xx_emac_pdata,
 };
 
diff --git a/arch/arm/mach-davinci/da850.c b/arch/arm/mach-davinci/da850.c
index f56e5fbfa2fd..352984e1528a 100644
--- a/arch/arm/mach-davinci/da850.c
+++ b/arch/arm/mach-davinci/da850.c
@@ -17,6 +17,7 @@
 #include <linux/platform_device.h>
 #include <linux/cpufreq.h>
 #include <linux/regulator/consumer.h>
+#include <linux/platform_data/gpio-davinci.h>
 
 #include <asm/mach/map.h>
 
@@ -28,7 +29,6 @@
 #include <mach/da8xx.h>
 #include <mach/cpufreq.h>
 #include <mach/pm.h>
-#include <mach/gpio-davinci.h>
 
 #include "clock.h"
 #include "mux.h"
@@ -1281,6 +1281,16 @@ int __init da850_register_vpif_capture(struct vpif_capture_config
 	return platform_device_register(&da850_vpif_capture_dev);
 }
 
+static struct davinci_gpio_platform_data da850_gpio_platform_data = {
+	.ngpio = 144,
+	.intc_irq_num = DA850_N_CP_INTC_IRQ,
+};
+
+int __init da850_register_gpio(void)
+{
+	return da8xx_register_gpio(&da850_gpio_platform_data);
+}
+
 static struct davinci_soc_info davinci_soc_info_da850 = {
 	.io_desc		= da850_io_desc,
 	.io_desc_num		= ARRAY_SIZE(da850_io_desc),
@@ -1298,10 +1308,6 @@ static struct davinci_soc_info davinci_soc_info_da850 = {
 	.intc_irq_prios		= da850_default_priorities,
 	.intc_irq_num		= DA850_N_CP_INTC_IRQ,
 	.timer_info		= &da850_timer_info,
-	.gpio_type		= GPIO_TYPE_DAVINCI,
-	.gpio_base		= DA8XX_GPIO_BASE,
-	.gpio_num		= 144,
-	.gpio_irq		= IRQ_DA8XX_GPIO0,
 	.emac_pdata		= &da8xx_emac_pdata,
 	.sram_dma		= DA8XX_SHARED_RAM_BASE,
 	.sram_len		= SZ_128K,
diff --git a/arch/arm/mach-davinci/devices-da8xx.c b/arch/arm/mach-davinci/devices-da8xx.c
index 2e473fefd71e..c46eccbbd512 100644
--- a/arch/arm/mach-davinci/devices-da8xx.c
+++ b/arch/arm/mach-davinci/devices-da8xx.c
@@ -665,6 +665,32 @@ int __init da8xx_register_lcdc(struct da8xx_lcdc_platform_data *pdata)
 	return platform_device_register(&da8xx_lcdc_device);
 }
 
+static struct resource da8xx_gpio_resources[] = {
+	{ /* registers */
+		.start	= DA8XX_GPIO_BASE,
+		.end	= DA8XX_GPIO_BASE + SZ_4K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{ /* interrupt */
+		.start	= IRQ_DA8XX_GPIO0,
+		.end	= IRQ_DA8XX_GPIO8,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device da8xx_gpio_device = {
+	.name		= "davinci_gpio",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(da8xx_gpio_resources),
+	.resource	= da8xx_gpio_resources,
+};
+
+int __init da8xx_register_gpio(void *pdata)
+{
+	da8xx_gpio_device.dev.platform_data = pdata;
+	return platform_device_register(&da8xx_gpio_device);
+}
+
 static struct resource da8xx_mmcsd0_resources[] = {
 	{		/* registers */
 		.start	= DA8XX_MMCSD0_BASE,
diff --git a/arch/arm/mach-davinci/include/mach/da8xx.h b/arch/arm/mach-davinci/include/mach/da8xx.h
index aae53072c0eb..39e58b48e826 100644
--- a/arch/arm/mach-davinci/include/mach/da8xx.h
+++ b/arch/arm/mach-davinci/include/mach/da8xx.h
@@ -97,6 +97,7 @@ int da8xx_register_mmcsd0(struct davinci_mmc_config *config);
 int da850_register_mmcsd1(struct davinci_mmc_config *config);
 void da8xx_register_mcasp(int id, struct snd_platform_data *pdata);
 int da8xx_register_rtc(void);
+int da8xx_register_gpio(void *pdata);
 int da850_register_cpufreq(char *async_clk);
 int da8xx_register_cpuidle(void);
 void __iomem *da8xx_get_mem_ctlr(void);
@@ -110,6 +111,8 @@ int da850_register_vpif_capture
 void da8xx_restart(enum reboot_mode mode, const char *cmd);
 void da8xx_rproc_reserve_cma(void);
 int da8xx_register_rproc(void);
+int da850_register_gpio(void);
+int da830_register_gpio(void);
 
 extern struct platform_device da8xx_serial_device[];
 extern struct emac_platform_data da8xx_emac_pdata;
-- 
cgit 


From 9cc1515cbd2155df8530ba8438b0b5bfdff50117 Mon Sep 17 00:00:00 2001
From: Philip Avinash <avinashphilip@ti.com>
Date: Sun, 18 Aug 2013 10:49:00 +0530
Subject: ARM: davinci: support gpio platform device

DaVinci GPIO driver now uses platform device model.
Add a GPIO platform register API to convert the
traditional DaVinci  SoCs to use the new model.

While at it, also group related include files together
wherever that was not the case.

Signed-off-by: Philip Avinash <avinashphilip@ti.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
[nsekhar@ti.com: move function declaration to local header,
		 simplify commit message, merge SoC specific
		 portions from other patches into this patch]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
---
 arch/arm/mach-davinci/davinci.h                   |  7 +++++
 arch/arm/mach-davinci/devices.c                   | 13 ++++++++
 arch/arm/mach-davinci/dm355.c                     | 35 ++++++++++++++++-----
 arch/arm/mach-davinci/dm365.c                     | 37 ++++++++++++++++++-----
 arch/arm/mach-davinci/dm644x.c                    | 30 +++++++++++++++---
 arch/arm/mach-davinci/dm646x.c                    | 30 +++++++++++++++---
 arch/arm/mach-davinci/include/mach/gpio-davinci.h |  2 --
 7 files changed, 126 insertions(+), 28 deletions(-)

diff --git a/arch/arm/mach-davinci/davinci.h b/arch/arm/mach-davinci/davinci.h
index 2ab5d577186f..2eebc4338802 100644
--- a/arch/arm/mach-davinci/davinci.h
+++ b/arch/arm/mach-davinci/davinci.h
@@ -53,6 +53,9 @@ extern void __iomem *davinci_sysmod_base;
 #define DAVINCI_SYSMOD_VIRT(x)	(davinci_sysmod_base + (x))
 void davinci_map_sysmod(void);
 
+#define DAVINCI_GPIO_BASE 0x01C67000
+int davinci_gpio_register(struct resource *res, int size, void *pdata);
+
 /* DM355 base addresses */
 #define DM355_ASYNC_EMIF_CONTROL_BASE	0x01e10000
 #define DM355_ASYNC_EMIF_DATA_CE0_BASE	0x02000000
@@ -82,6 +85,7 @@ void dm355_init_spi0(unsigned chipselect_mask,
 		const struct spi_board_info *info, unsigned len);
 void dm355_init_asp1(u32 evt_enable, struct snd_platform_data *pdata);
 int dm355_init_video(struct vpfe_config *, struct vpbe_config *);
+int dm355_gpio_register(void);
 
 /* DM365 function declarations */
 void dm365_init(void);
@@ -92,11 +96,13 @@ void dm365_init_rtc(void);
 void dm365_init_spi0(unsigned chipselect_mask,
 			const struct spi_board_info *info, unsigned len);
 int dm365_init_video(struct vpfe_config *, struct vpbe_config *);
+int dm365_gpio_register(void);
 
 /* DM644x function declarations */
 void dm644x_init(void);
 void dm644x_init_asp(struct snd_platform_data *pdata);
 int dm644x_init_video(struct vpfe_config *, struct vpbe_config *);
+int dm644x_gpio_register(void);
 
 /* DM646x function declarations */
 void dm646x_init(void);
@@ -106,6 +112,7 @@ int dm646x_init_edma(struct edma_rsv_info *rsv);
 void dm646x_video_init(void);
 void dm646x_setup_vpif(struct vpif_display_config *,
 		       struct vpif_capture_config *);
+int dm646x_gpio_register(void);
 
 extern struct platform_device dm365_serial_device[];
 extern struct platform_device dm355_serial_device[];
diff --git a/arch/arm/mach-davinci/devices.c b/arch/arm/mach-davinci/devices.c
index 111573c0aad1..3996e98f52fb 100644
--- a/arch/arm/mach-davinci/devices.c
+++ b/arch/arm/mach-davinci/devices.c
@@ -318,6 +318,19 @@ static void davinci_init_wdt(void)
 	platform_device_register(&davinci_wdt_device);
 }
 
+static struct platform_device davinci_gpio_device = {
+	.name	= "davinci_gpio",
+	.id	= -1,
+};
+
+int davinci_gpio_register(struct resource *res, int size, void *pdata)
+{
+	davinci_gpio_device.resource = res;
+	davinci_gpio_device.num_resources = size;
+	davinci_gpio_device.dev.platform_data = pdata;
+	return platform_device_register(&davinci_gpio_device);
+}
+
 /*-------------------------------------------------------------------------*/
 
 /*-------------------------------------------------------------------------*/
diff --git a/arch/arm/mach-davinci/dm355.c b/arch/arm/mach-davinci/dm355.c
index 3eaa5f6b2160..ef9ff1fb6f52 100644
--- a/arch/arm/mach-davinci/dm355.c
+++ b/arch/arm/mach-davinci/dm355.c
@@ -13,8 +13,10 @@
 #include <linux/serial_8250.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
-
 #include <linux/spi/spi.h>
+#include <linux/platform_data/edma.h>
+#include <linux/platform_data/gpio-davinci.h>
+#include <linux/platform_data/spi-davinci.h>
 
 #include <asm/mach/map.h>
 
@@ -25,9 +27,6 @@
 #include <mach/time.h>
 #include <mach/serial.h>
 #include <mach/common.h>
-#include <linux/platform_data/spi-davinci.h>
-#include <mach/gpio-davinci.h>
-#include <linux/platform_data/edma.h>
 
 #include "davinci.h"
 #include "clock.h"
@@ -886,6 +885,30 @@ static struct platform_device dm355_vpbe_dev = {
 	},
 };
 
+static struct resource dm355_gpio_resources[] = {
+	{	/* registers */
+		.start	= DAVINCI_GPIO_BASE,
+		.end	= DAVINCI_GPIO_BASE + SZ_4K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{	/* interrupt */
+		.start	= IRQ_DM355_GPIOBNK0,
+		.end	= IRQ_DM355_GPIOBNK6,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct davinci_gpio_platform_data dm355_gpio_platform_data = {
+	.ngpio		= 104,
+	.intc_irq_num	= DAVINCI_N_AINTC_IRQ,
+};
+
+int __init dm355_gpio_register(void)
+{
+	return davinci_gpio_register(dm355_gpio_resources,
+				     sizeof(dm355_gpio_resources),
+				     &dm355_gpio_platform_data);
+}
 /*----------------------------------------------------------------------*/
 
 static struct map_desc dm355_io_desc[] = {
@@ -1005,10 +1028,6 @@ static struct davinci_soc_info davinci_soc_info_dm355 = {
 	.intc_irq_prios		= dm355_default_priorities,
 	.intc_irq_num		= DAVINCI_N_AINTC_IRQ,
 	.timer_info		= &dm355_timer_info,
-	.gpio_type		= GPIO_TYPE_DAVINCI,
-	.gpio_base		= DAVINCI_GPIO_BASE,
-	.gpio_num		= 104,
-	.gpio_irq		= IRQ_DM355_GPIOBNK0,
 	.sram_dma		= 0x00010000,
 	.sram_len		= SZ_32K,
 };
diff --git a/arch/arm/mach-davinci/dm365.c b/arch/arm/mach-davinci/dm365.c
index c29e324eb0bb..1511a0680f9a 100644
--- a/arch/arm/mach-davinci/dm365.c
+++ b/arch/arm/mach-davinci/dm365.c
@@ -19,6 +19,9 @@
 #include <linux/dma-mapping.h>
 #include <linux/spi/spi.h>
 #include <linux/platform_data/edma.h>
+#include <linux/platform_data/gpio-davinci.h>
+#include <linux/platform_data/keyscan-davinci.h>
+#include <linux/platform_data/spi-davinci.h>
 
 #include <asm/mach/map.h>
 
@@ -29,9 +32,6 @@
 #include <mach/time.h>
 #include <mach/serial.h>
 #include <mach/common.h>
-#include <linux/platform_data/keyscan-davinci.h>
-#include <linux/platform_data/spi-davinci.h>
-#include <mach/gpio-davinci.h>
 
 #include "davinci.h"
 #include "clock.h"
@@ -698,6 +698,32 @@ void __init dm365_init_spi0(unsigned chipselect_mask,
 	platform_device_register(&dm365_spi0_device);
 }
 
+static struct resource dm365_gpio_resources[] = {
+	{	/* registers */
+		.start	= DAVINCI_GPIO_BASE,
+		.end	= DAVINCI_GPIO_BASE + SZ_4K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{	/* interrupt */
+		.start	= IRQ_DM365_GPIO0,
+		.end	= IRQ_DM365_GPIO7,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct davinci_gpio_platform_data dm365_gpio_platform_data = {
+	.ngpio		= 104,
+	.intc_irq_num	= DAVINCI_N_AINTC_IRQ,
+	.gpio_unbanked	= 8,
+};
+
+int __init dm365_gpio_register(void)
+{
+	return davinci_gpio_register(dm365_gpio_resources,
+				     sizeof(dm365_gpio_resources),
+				     &dm365_gpio_platform_data);
+}
+
 static struct emac_platform_data dm365_emac_pdata = {
 	.ctrl_reg_offset	= DM365_EMAC_CNTRL_OFFSET,
 	.ctrl_mod_reg_offset	= DM365_EMAC_CNTRL_MOD_OFFSET,
@@ -1105,11 +1131,6 @@ static struct davinci_soc_info davinci_soc_info_dm365 = {
 	.intc_irq_prios		= dm365_default_priorities,
 	.intc_irq_num		= DAVINCI_N_AINTC_IRQ,
 	.timer_info		= &dm365_timer_info,
-	.gpio_type		= GPIO_TYPE_DAVINCI,
-	.gpio_base		= DAVINCI_GPIO_BASE,
-	.gpio_num		= 104,
-	.gpio_irq		= IRQ_DM365_GPIO0,
-	.gpio_unbanked		= 8,	/* really 16 ... skip muxed GPIOs */
 	.emac_pdata		= &dm365_emac_pdata,
 	.sram_dma		= 0x00010000,
 	.sram_len		= SZ_32K,
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 4f74682293d6..143a3217e8ef 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -13,6 +13,7 @@
 #include <linux/serial_8250.h>
 #include <linux/platform_device.h>
 #include <linux/platform_data/edma.h>
+#include <linux/platform_data/gpio-davinci.h>
 
 #include <asm/mach/map.h>
 
@@ -23,7 +24,6 @@
 #include <mach/time.h>
 #include <mach/serial.h>
 #include <mach/common.h>
-#include <mach/gpio-davinci.h>
 
 #include "davinci.h"
 #include "clock.h"
@@ -771,6 +771,30 @@ static struct platform_device dm644x_vpbe_dev = {
 	},
 };
 
+static struct resource dm644_gpio_resources[] = {
+	{	/* registers */
+		.start	= DAVINCI_GPIO_BASE,
+		.end	= DAVINCI_GPIO_BASE + SZ_4K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{	/* interrupt */
+		.start	= IRQ_GPIOBNK0,
+		.end	= IRQ_GPIOBNK4,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct davinci_gpio_platform_data dm644_gpio_platform_data = {
+	.ngpio		= 71,
+	.intc_irq_num	= DAVINCI_N_AINTC_IRQ,
+};
+
+int __init dm644x_gpio_register(void)
+{
+	return davinci_gpio_register(dm644_gpio_resources,
+				     sizeof(dm644_gpio_resources),
+				     &dm644_gpio_platform_data);
+}
 /*----------------------------------------------------------------------*/
 
 static struct map_desc dm644x_io_desc[] = {
@@ -897,10 +921,6 @@ static struct davinci_soc_info davinci_soc_info_dm644x = {
 	.intc_irq_prios 	= dm644x_default_priorities,
 	.intc_irq_num		= DAVINCI_N_AINTC_IRQ,
 	.timer_info		= &dm644x_timer_info,
-	.gpio_type		= GPIO_TYPE_DAVINCI,
-	.gpio_base		= DAVINCI_GPIO_BASE,
-	.gpio_num		= 71,
-	.gpio_irq		= IRQ_GPIOBNK0,
 	.emac_pdata		= &dm644x_emac_pdata,
 	.sram_dma		= 0x00008000,
 	.sram_len		= SZ_16K,
diff --git a/arch/arm/mach-davinci/dm646x.c b/arch/arm/mach-davinci/dm646x.c
index 68f8d1f1aca1..2a73f299c1d0 100644
--- a/arch/arm/mach-davinci/dm646x.c
+++ b/arch/arm/mach-davinci/dm646x.c
@@ -14,6 +14,7 @@
 #include <linux/serial_8250.h>
 #include <linux/platform_device.h>
 #include <linux/platform_data/edma.h>
+#include <linux/platform_data/gpio-davinci.h>
 
 #include <asm/mach/map.h>
 
@@ -24,7 +25,6 @@
 #include <mach/time.h>
 #include <mach/serial.h>
 #include <mach/common.h>
-#include <mach/gpio-davinci.h>
 
 #include "davinci.h"
 #include "clock.h"
@@ -748,6 +748,30 @@ static struct platform_device vpif_capture_dev = {
 	.num_resources	= ARRAY_SIZE(vpif_capture_resource),
 };
 
+static struct resource dm646x_gpio_resources[] = {
+	{	/* registers */
+		.start	= DAVINCI_GPIO_BASE,
+		.end	= DAVINCI_GPIO_BASE + SZ_4K - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	{	/* interrupt */
+		.start	= IRQ_DM646X_GPIOBNK0,
+		.end	= IRQ_DM646X_GPIOBNK2,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+static struct davinci_gpio_platform_data dm646x_gpio_platform_data = {
+	.ngpio		= 43,
+	.intc_irq_num	= DAVINCI_N_AINTC_IRQ,
+};
+
+int __init dm646x_gpio_register(void)
+{
+	return davinci_gpio_register(dm646x_gpio_resources,
+				     sizeof(dm646x_gpio_resources),
+				     &dm646x_gpio_platform_data);
+}
 /*----------------------------------------------------------------------*/
 
 static struct map_desc dm646x_io_desc[] = {
@@ -874,10 +898,6 @@ static struct davinci_soc_info davinci_soc_info_dm646x = {
 	.intc_irq_prios		= dm646x_default_priorities,
 	.intc_irq_num		= DAVINCI_N_AINTC_IRQ,
 	.timer_info		= &dm646x_timer_info,
-	.gpio_type		= GPIO_TYPE_DAVINCI,
-	.gpio_base		= DAVINCI_GPIO_BASE,
-	.gpio_num		= 43, /* Only 33 usable */
-	.gpio_irq		= IRQ_DM646X_GPIOBNK0,
 	.emac_pdata		= &dm646x_emac_pdata,
 	.sram_dma		= 0x10010000,
 	.sram_len		= SZ_32K,
diff --git a/arch/arm/mach-davinci/include/mach/gpio-davinci.h b/arch/arm/mach-davinci/include/mach/gpio-davinci.h
index 551ba43a763e..0d63b24cefc9 100644
--- a/arch/arm/mach-davinci/include/mach/gpio-davinci.h
+++ b/arch/arm/mach-davinci/include/mach/gpio-davinci.h
@@ -21,8 +21,6 @@
 #include <mach/irqs.h>
 #include <mach/common.h>
 
-#define DAVINCI_GPIO_BASE 0x01C67000
-
 enum davinci_gpio_type {
 	GPIO_TYPE_DAVINCI = 0,
 	GPIO_TYPE_TNETV107X,
-- 
cgit 


From 1e019421bca68cfae1a61a09d9d49cf6a9e2143b Mon Sep 17 00:00:00 2001
From: Mike Travis <travis@sgi.com>
Date: Mon, 23 Sep 2013 16:25:00 -0500
Subject: x86/UV: Move NMI support

This patch moves the UV NMI support from the x2apic file to a
new separate uv_nmi.c file in preparation for the next sequence
of patches. It prevents upcoming bloat of the x2apic file, and
has the added benefit of putting the upcoming /sys/module
parameters under the name 'uv_nmi' instead of 'x2apic_uv_x',
which was obscure.

Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Dimitri Sivanich <sivanich@sgi.com>
Reviewed-by: Hedi Berriche <hedi@sgi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Jason Wessel <jason.wessel@windriver.com>
Link: http://lkml.kernel.org/r/20130923212500.183295611@asylum.americas.sgi.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/include/asm/uv/uv.h       |   2 +
 arch/x86/kernel/apic/x2apic_uv_x.c |  69 -------------------------
 arch/x86/platform/uv/Makefile      |   2 +-
 arch/x86/platform/uv/uv_nmi.c      | 102 +++++++++++++++++++++++++++++++++++++
 4 files changed, 105 insertions(+), 70 deletions(-)
 create mode 100644 arch/x86/platform/uv/uv_nmi.c

diff --git a/arch/x86/include/asm/uv/uv.h b/arch/x86/include/asm/uv/uv.h
index 062921ef34e9..6b964a0b86d1 100644
--- a/arch/x86/include/asm/uv/uv.h
+++ b/arch/x86/include/asm/uv/uv.h
@@ -12,6 +12,7 @@ extern enum uv_system_type get_uv_system_type(void);
 extern int is_uv_system(void);
 extern void uv_cpu_init(void);
 extern void uv_nmi_init(void);
+extern void uv_register_nmi_notifier(void);
 extern void uv_system_init(void);
 extern const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
 						 struct mm_struct *mm,
@@ -25,6 +26,7 @@ static inline enum uv_system_type get_uv_system_type(void) { return UV_NONE; }
 static inline int is_uv_system(void)	{ return 0; }
 static inline void uv_cpu_init(void)	{ }
 static inline void uv_system_init(void)	{ }
+static inline void uv_register_nmi_notifier(void) { }
 static inline const struct cpumask *
 uv_flush_tlb_others(const struct cpumask *cpumask, struct mm_struct *mm,
 		    unsigned long start, unsigned long end, unsigned int cpu)
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 1191ac1c9d25..9e47c06ae5ab 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -39,12 +39,6 @@
 #include <asm/x86_init.h>
 #include <asm/nmi.h>
 
-/* BMC sets a bit this MMR non-zero before sending an NMI */
-#define UVH_NMI_MMR				UVH_SCRATCH5
-#define UVH_NMI_MMR_CLEAR			(UVH_NMI_MMR + 8)
-#define UV_NMI_PENDING_MASK			(1UL << 63)
-DEFINE_PER_CPU(unsigned long, cpu_last_nmi_count);
-
 DEFINE_PER_CPU(int, x2apic_extra_bits);
 
 #define PR_DEVEL(fmt, args...)	pr_devel("%s: " fmt, __func__, args)
@@ -58,7 +52,6 @@ int uv_min_hub_revision_id;
 EXPORT_SYMBOL_GPL(uv_min_hub_revision_id);
 unsigned int uv_apicid_hibits;
 EXPORT_SYMBOL_GPL(uv_apicid_hibits);
-static DEFINE_SPINLOCK(uv_nmi_lock);
 
 static struct apic apic_x2apic_uv_x;
 
@@ -847,68 +840,6 @@ void uv_cpu_init(void)
 		set_x2apic_extra_bits(uv_hub_info->pnode);
 }
 
-/*
- * When NMI is received, print a stack trace.
- */
-int uv_handle_nmi(unsigned int reason, struct pt_regs *regs)
-{
-	unsigned long real_uv_nmi;
-	int bid;
-
-	/*
-	 * Each blade has an MMR that indicates when an NMI has been sent
-	 * to cpus on the blade. If an NMI is detected, atomically
-	 * clear the MMR and update a per-blade NMI count used to
-	 * cause each cpu on the blade to notice a new NMI.
-	 */
-	bid = uv_numa_blade_id();
-	real_uv_nmi = (uv_read_local_mmr(UVH_NMI_MMR) & UV_NMI_PENDING_MASK);
-
-	if (unlikely(real_uv_nmi)) {
-		spin_lock(&uv_blade_info[bid].nmi_lock);
-		real_uv_nmi = (uv_read_local_mmr(UVH_NMI_MMR) & UV_NMI_PENDING_MASK);
-		if (real_uv_nmi) {
-			uv_blade_info[bid].nmi_count++;
-			uv_write_local_mmr(UVH_NMI_MMR_CLEAR, UV_NMI_PENDING_MASK);
-		}
-		spin_unlock(&uv_blade_info[bid].nmi_lock);
-	}
-
-	if (likely(__get_cpu_var(cpu_last_nmi_count) == uv_blade_info[bid].nmi_count))
-		return NMI_DONE;
-
-	__get_cpu_var(cpu_last_nmi_count) = uv_blade_info[bid].nmi_count;
-
-	/*
-	 * Use a lock so only one cpu prints at a time.
-	 * This prevents intermixed output.
-	 */
-	spin_lock(&uv_nmi_lock);
-	pr_info("UV NMI stack dump cpu %u:\n", smp_processor_id());
-	dump_stack();
-	spin_unlock(&uv_nmi_lock);
-
-	return NMI_HANDLED;
-}
-
-void uv_register_nmi_notifier(void)
-{
-	if (register_nmi_handler(NMI_UNKNOWN, uv_handle_nmi, 0, "uv"))
-		printk(KERN_WARNING "UV NMI handler failed to register\n");
-}
-
-void uv_nmi_init(void)
-{
-	unsigned int value;
-
-	/*
-	 * Unmask NMI on all cpus
-	 */
-	value = apic_read(APIC_LVT1) | APIC_DM_NMI;
-	value &= ~APIC_LVT_MASKED;
-	apic_write(APIC_LVT1, value);
-}
-
 void __init uv_system_init(void)
 {
 	union uvh_rh_gam_config_mmr_u  m_n_config;
diff --git a/arch/x86/platform/uv/Makefile b/arch/x86/platform/uv/Makefile
index 6c40995fefb8..52079bebd014 100644
--- a/arch/x86/platform/uv/Makefile
+++ b/arch/x86/platform/uv/Makefile
@@ -1 +1 @@
-obj-$(CONFIG_X86_UV)		+= tlb_uv.o bios_uv.o uv_irq.o uv_sysfs.o uv_time.o
+obj-$(CONFIG_X86_UV)		+= tlb_uv.o bios_uv.o uv_irq.o uv_sysfs.o uv_time.o uv_nmi.o
diff --git a/arch/x86/platform/uv/uv_nmi.c b/arch/x86/platform/uv/uv_nmi.c
new file mode 100644
index 000000000000..37feb60618b1
--- /dev/null
+++ b/arch/x86/platform/uv/uv_nmi.c
@@ -0,0 +1,102 @@
+/*
+ * SGI NMI support routines
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ *  Copyright (c) 2009-2013 Silicon Graphics, Inc.  All Rights Reserved.
+ *  Copyright (c) Mike Travis
+ */
+
+#include <linux/cpu.h>
+#include <linux/nmi.h>
+
+#include <asm/apic.h>
+#include <asm/nmi.h>
+#include <asm/uv/uv.h>
+#include <asm/uv/uv_hub.h>
+#include <asm/uv/uv_mmrs.h>
+
+/* BMC sets a bit this MMR non-zero before sending an NMI */
+#define UVH_NMI_MMR				UVH_SCRATCH5
+#define UVH_NMI_MMR_CLEAR			(UVH_NMI_MMR + 8)
+#define UV_NMI_PENDING_MASK			(1UL << 63)
+DEFINE_PER_CPU(unsigned long, cpu_last_nmi_count);
+static DEFINE_SPINLOCK(uv_nmi_lock);
+
+/*
+ * When NMI is received, print a stack trace.
+ */
+int uv_handle_nmi(unsigned int reason, struct pt_regs *regs)
+{
+	unsigned long real_uv_nmi;
+	int bid;
+
+	/*
+	 * Each blade has an MMR that indicates when an NMI has been sent
+	 * to cpus on the blade. If an NMI is detected, atomically
+	 * clear the MMR and update a per-blade NMI count used to
+	 * cause each cpu on the blade to notice a new NMI.
+	 */
+	bid = uv_numa_blade_id();
+	real_uv_nmi = (uv_read_local_mmr(UVH_NMI_MMR) & UV_NMI_PENDING_MASK);
+
+	if (unlikely(real_uv_nmi)) {
+		spin_lock(&uv_blade_info[bid].nmi_lock);
+		real_uv_nmi = (uv_read_local_mmr(UVH_NMI_MMR) &
+				UV_NMI_PENDING_MASK);
+		if (real_uv_nmi) {
+			uv_blade_info[bid].nmi_count++;
+			uv_write_local_mmr(UVH_NMI_MMR_CLEAR,
+						UV_NMI_PENDING_MASK);
+		}
+		spin_unlock(&uv_blade_info[bid].nmi_lock);
+	}
+
+	if (likely(__get_cpu_var(cpu_last_nmi_count) ==
+			uv_blade_info[bid].nmi_count))
+		return NMI_DONE;
+
+	__get_cpu_var(cpu_last_nmi_count) = uv_blade_info[bid].nmi_count;
+
+	/*
+	 * Use a lock so only one cpu prints at a time.
+	 * This prevents intermixed output.
+	 */
+	spin_lock(&uv_nmi_lock);
+	pr_info("UV NMI stack dump cpu %u:\n", smp_processor_id());
+	dump_stack();
+	spin_unlock(&uv_nmi_lock);
+
+	return NMI_HANDLED;
+}
+
+void uv_register_nmi_notifier(void)
+{
+	if (register_nmi_handler(NMI_UNKNOWN, uv_handle_nmi, 0, "uv"))
+		pr_warn("UV NMI handler failed to register\n");
+}
+
+void uv_nmi_init(void)
+{
+	unsigned int value;
+
+	/*
+	 * Unmask NMI on all cpus
+	 */
+	value = apic_read(APIC_LVT1) | APIC_DM_NMI;
+	value &= ~APIC_LVT_MASKED;
+	apic_write(APIC_LVT1, value);
+}
+
-- 
cgit 


From 0d12ef0c900078cc1f4e78dff2245521aa5d0c89 Mon Sep 17 00:00:00 2001
From: Mike Travis <travis@sgi.com>
Date: Mon, 23 Sep 2013 16:25:01 -0500
Subject: x86/UV: Update UV support for external NMI signals

The current UV NMI handler has not been updated for the changes
in the system NMI handler and the perf operations.  The UV NMI
handler reads an MMR in the UV Hub to check to see if the NMI
event was caused by the external 'system NMI' that the operator
can initiate on the System Mgmt Controller.

The problem arises when the perf tools are running, causing
millions of perf events per second on very large CPU count
systems.  Previously this was okay because the perf NMI handler
ran at a higher priority on the NMI call chain and if the NMI
was a perf event, it would stop calling other NMI handlers
remaining on the NMI call chain.

Now the system NMI handler calls all the handlers on the NMI
call chain including the UV NMI handler.  This causes the UV NMI
handler to read the MMRs at the same millions per second rate.
This can lead to significant performance loss and possible
system failures.  It also can cause thousands of 'Dazed and
Confused' messages being sent to the system console.  This
effectively makes perf tools unusable on UV systems.

To avoid this excessive overhead when perf tools are running,
this code has been optimized to minimize reading of the MMRs as
much as possible, by moving to the NMI_UNKNOWN notifier chain.
This chain is called only when all the users on the standard
NMI_LOCAL call chain have been called and none of them have
claimed this NMI.

There is an exception where the NMI_LOCAL notifier chain is
used.  When the perf tools are in use, it's possible that the UV
NMI was captured by some other NMI handler and then either
ignored or mistakenly processed as a perf event.  We set a
per_cpu ('ping') flag for those CPUs that ignored the initial
NMI, and then send them an IPI NMI signal.  The NMI_LOCAL
handler on each cpu does not need to read the MMR, but instead
checks the in memory flag indicating it was pinged.  There are
two module variables, 'ping_count' indicating how many requested
NMI events occurred, and 'ping_misses' indicating how many stray
NMI events.  These most likely are perf events so it shows the
overhead of the perf NMI interrupts and how many MMR reads were avoided.

This patch also minimizes the reads of the MMRs by having the
first cpu entering the NMI handler on each node set a per HUB
in-memory atomic value.  (Having a per HUB value avoids sending
lock traffic over NumaLink.)  Both types of UV NMIs from the SMI
layer are supported.

Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Dimitri Sivanich <sivanich@sgi.com>
Reviewed-by: Hedi Berriche <hedi@sgi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Jason Wessel <jason.wessel@windriver.com>
Link: http://lkml.kernel.org/r/20130923212500.353547733@asylum.americas.sgi.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/include/asm/uv/uv_hub.h   |  57 +++-
 arch/x86/include/asm/uv/uv_mmrs.h  |  31 +++
 arch/x86/kernel/apic/x2apic_uv_x.c |   1 +
 arch/x86/platform/uv/uv_nmi.c      | 553 ++++++++++++++++++++++++++++++++++---
 4 files changed, 600 insertions(+), 42 deletions(-)

diff --git a/arch/x86/include/asm/uv/uv_hub.h b/arch/x86/include/asm/uv/uv_hub.h
index 2c32df95bb78..a30836c8ac4d 100644
--- a/arch/x86/include/asm/uv/uv_hub.h
+++ b/arch/x86/include/asm/uv/uv_hub.h
@@ -502,8 +502,8 @@ struct uv_blade_info {
 	unsigned short	nr_online_cpus;
 	unsigned short	pnode;
 	short		memory_nid;
-	spinlock_t	nmi_lock;
-	unsigned long	nmi_count;
+	spinlock_t	nmi_lock;	/* obsolete, see uv_hub_nmi */
+	unsigned long	nmi_count;	/* obsolete, see uv_hub_nmi */
 };
 extern struct uv_blade_info *uv_blade_info;
 extern short *uv_node_to_blade;
@@ -576,6 +576,59 @@ static inline int uv_num_possible_blades(void)
 	return uv_possible_blades;
 }
 
+/* Per Hub NMI support */
+extern void uv_nmi_setup(void);
+
+/* BMC sets a bit this MMR non-zero before sending an NMI */
+#define UVH_NMI_MMR		UVH_SCRATCH5
+#define UVH_NMI_MMR_CLEAR	UVH_SCRATCH5_ALIAS
+#define UVH_NMI_MMR_SHIFT	63
+#define	UVH_NMI_MMR_TYPE	"SCRATCH5"
+
+/* Newer SMM NMI handler, not present in all systems */
+#define UVH_NMI_MMRX		UVH_EVENT_OCCURRED0
+#define UVH_NMI_MMRX_CLEAR	UVH_EVENT_OCCURRED0_ALIAS
+#define UVH_NMI_MMRX_SHIFT	(is_uv1_hub() ? \
+					UV1H_EVENT_OCCURRED0_EXTIO_INT0_SHFT :\
+					UVXH_EVENT_OCCURRED0_EXTIO_INT0_SHFT)
+#define	UVH_NMI_MMRX_TYPE	"EXTIO_INT0"
+
+/* Non-zero indicates newer SMM NMI handler present */
+#define UVH_NMI_MMRX_SUPPORTED	UVH_EXTIO_INT0_BROADCAST
+
+/* Indicates to BIOS that we want to use the newer SMM NMI handler */
+#define UVH_NMI_MMRX_REQ	UVH_SCRATCH5_ALIAS_2
+#define UVH_NMI_MMRX_REQ_SHIFT	62
+
+struct uv_hub_nmi_s {
+	raw_spinlock_t	nmi_lock;
+	atomic_t	in_nmi;		/* flag this node in UV NMI IRQ */
+	atomic_t	cpu_owner;	/* last locker of this struct */
+	atomic_t	read_mmr_count;	/* count of MMR reads */
+	atomic_t	nmi_count;	/* count of true UV NMIs */
+	unsigned long	nmi_value;	/* last value read from NMI MMR */
+};
+
+struct uv_cpu_nmi_s {
+	struct uv_hub_nmi_s	*hub;
+	atomic_t		state;
+	atomic_t		pinging;
+	int			queries;
+	int			pings;
+};
+
+DECLARE_PER_CPU(struct uv_cpu_nmi_s, __uv_cpu_nmi);
+#define uv_cpu_nmi			(__get_cpu_var(__uv_cpu_nmi))
+#define uv_hub_nmi			(uv_cpu_nmi.hub)
+#define uv_cpu_nmi_per(cpu)		(per_cpu(__uv_cpu_nmi, cpu))
+#define uv_hub_nmi_per(cpu)		(uv_cpu_nmi_per(cpu).hub)
+
+/* uv_cpu_nmi_states */
+#define	UV_NMI_STATE_OUT		0
+#define	UV_NMI_STATE_IN			1
+#define	UV_NMI_STATE_DUMP		2
+#define	UV_NMI_STATE_DUMP_DONE		3
+
 /* Update SCIR state */
 static inline void uv_set_scir_bits(unsigned char value)
 {
diff --git a/arch/x86/include/asm/uv/uv_mmrs.h b/arch/x86/include/asm/uv/uv_mmrs.h
index bd5f80e58a23..e42249bcf7e1 100644
--- a/arch/x86/include/asm/uv/uv_mmrs.h
+++ b/arch/x86/include/asm/uv/uv_mmrs.h
@@ -460,6 +460,23 @@ union uvh_event_occurred0_u {
 #define UVH_EVENT_OCCURRED0_ALIAS_32 0x5f0
 
 
+/* ========================================================================= */
+/*                         UVH_EXTIO_INT0_BROADCAST                          */
+/* ========================================================================= */
+#define UVH_EXTIO_INT0_BROADCAST 0x61448UL
+#define UVH_EXTIO_INT0_BROADCAST_32 0x3f0
+
+#define UVH_EXTIO_INT0_BROADCAST_ENABLE_SHFT		0
+#define UVH_EXTIO_INT0_BROADCAST_ENABLE_MASK		0x0000000000000001UL
+
+union uvh_extio_int0_broadcast_u {
+	unsigned long	v;
+	struct uvh_extio_int0_broadcast_s {
+		unsigned long	enable:1;			/* RW */
+		unsigned long	rsvd_1_63:63;
+	} s;
+};
+
 /* ========================================================================= */
 /*                         UVH_GR0_TLB_INT0_CONFIG                           */
 /* ========================================================================= */
@@ -2605,6 +2622,20 @@ union uvh_scratch5_u {
 	} s;
 };
 
+/* ========================================================================= */
+/*                            UVH_SCRATCH5_ALIAS                             */
+/* ========================================================================= */
+#define UVH_SCRATCH5_ALIAS 0x2d0208UL
+#define UVH_SCRATCH5_ALIAS_32 0x780
+
+
+/* ========================================================================= */
+/*                           UVH_SCRATCH5_ALIAS_2                            */
+/* ========================================================================= */
+#define UVH_SCRATCH5_ALIAS_2 0x2d0210UL
+#define UVH_SCRATCH5_ALIAS_2_32 0x788
+
+
 /* ========================================================================= */
 /*                          UVXH_EVENT_OCCURRED2                             */
 /* ========================================================================= */
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 9e47c06ae5ab..0a5a4b8ae36c 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -977,6 +977,7 @@ void __init uv_system_init(void)
 	map_mmr_high(max_pnode);
 	map_mmioh_high(min_pnode, max_pnode);
 
+	uv_nmi_setup();
 	uv_cpu_init();
 	uv_scir_register_cpu_notifier();
 	uv_register_nmi_notifier();
diff --git a/arch/x86/platform/uv/uv_nmi.c b/arch/x86/platform/uv/uv_nmi.c
index 37feb60618b1..fb02ea7d2b2d 100644
--- a/arch/x86/platform/uv/uv_nmi.c
+++ b/arch/x86/platform/uv/uv_nmi.c
@@ -20,72 +20,518 @@
  */
 
 #include <linux/cpu.h>
+#include <linux/delay.h>
+#include <linux/module.h>
 #include <linux/nmi.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
 
 #include <asm/apic.h>
+#include <asm/current.h>
+#include <asm/kdebug.h>
+#include <asm/local64.h>
 #include <asm/nmi.h>
 #include <asm/uv/uv.h>
 #include <asm/uv/uv_hub.h>
 #include <asm/uv/uv_mmrs.h>
 
-/* BMC sets a bit this MMR non-zero before sending an NMI */
-#define UVH_NMI_MMR				UVH_SCRATCH5
-#define UVH_NMI_MMR_CLEAR			(UVH_NMI_MMR + 8)
-#define UV_NMI_PENDING_MASK			(1UL << 63)
-DEFINE_PER_CPU(unsigned long, cpu_last_nmi_count);
-static DEFINE_SPINLOCK(uv_nmi_lock);
+/*
+ * UV handler for NMI
+ *
+ * Handle system-wide NMI events generated by the global 'power nmi' command.
+ *
+ * Basic operation is to field the NMI interrupt on each cpu and wait
+ * until all cpus have arrived into the nmi handler.  If some cpus do not
+ * make it into the handler, try and force them in with the IPI(NMI) signal.
+ *
+ * We also have to lessen UV Hub MMR accesses as much as possible as this
+ * disrupts the UV Hub's primary mission of directing NumaLink traffic and
+ * can cause system problems to occur.
+ *
+ * To do this we register our primary NMI notifier on the NMI_UNKNOWN
+ * chain.  This reduces the number of false NMI calls when the perf
+ * tools are running which generate an enormous number of NMIs per
+ * second (~4M/s for 1024 cpu threads).  Our secondary NMI handler is
+ * very short as it only checks that if it has been "pinged" with the
+ * IPI(NMI) signal as mentioned above, and does not read the UV Hub's MMR.
+ *
+ */
+
+static struct uv_hub_nmi_s **uv_hub_nmi_list;
+
+DEFINE_PER_CPU(struct uv_cpu_nmi_s, __uv_cpu_nmi);
+EXPORT_PER_CPU_SYMBOL_GPL(__uv_cpu_nmi);
+
+static unsigned long nmi_mmr;
+static unsigned long nmi_mmr_clear;
+static unsigned long nmi_mmr_pending;
+
+static atomic_t	uv_in_nmi;
+static atomic_t uv_nmi_cpu = ATOMIC_INIT(-1);
+static atomic_t uv_nmi_cpus_in_nmi = ATOMIC_INIT(-1);
+static atomic_t uv_nmi_slave_continue;
+static cpumask_var_t uv_nmi_cpu_mask;
+
+/* Values for uv_nmi_slave_continue */
+#define SLAVE_CLEAR	0
+#define SLAVE_CONTINUE	1
+#define SLAVE_EXIT	2
 
 /*
- * When NMI is received, print a stack trace.
+ * Default is all stack dumps go to the console and buffer.
+ * Lower level to send to log buffer only.
  */
-int uv_handle_nmi(unsigned int reason, struct pt_regs *regs)
+static int uv_nmi_loglevel = 7;
+module_param_named(dump_loglevel, uv_nmi_loglevel, int, 0644);
+
+/*
+ * The following values show statistics on how perf events are affecting
+ * this system.
+ */
+static int param_get_local64(char *buffer, const struct kernel_param *kp)
 {
-	unsigned long real_uv_nmi;
-	int bid;
+	return sprintf(buffer, "%lu\n", local64_read((local64_t *)kp->arg));
+}
 
-	/*
-	 * Each blade has an MMR that indicates when an NMI has been sent
-	 * to cpus on the blade. If an NMI is detected, atomically
-	 * clear the MMR and update a per-blade NMI count used to
-	 * cause each cpu on the blade to notice a new NMI.
-	 */
-	bid = uv_numa_blade_id();
-	real_uv_nmi = (uv_read_local_mmr(UVH_NMI_MMR) & UV_NMI_PENDING_MASK);
-
-	if (unlikely(real_uv_nmi)) {
-		spin_lock(&uv_blade_info[bid].nmi_lock);
-		real_uv_nmi = (uv_read_local_mmr(UVH_NMI_MMR) &
-				UV_NMI_PENDING_MASK);
-		if (real_uv_nmi) {
-			uv_blade_info[bid].nmi_count++;
-			uv_write_local_mmr(UVH_NMI_MMR_CLEAR,
-						UV_NMI_PENDING_MASK);
+static int param_set_local64(const char *val, const struct kernel_param *kp)
+{
+	/* clear on any write */
+	local64_set((local64_t *)kp->arg, 0);
+	return 0;
+}
+
+static struct kernel_param_ops param_ops_local64 = {
+	.get = param_get_local64,
+	.set = param_set_local64,
+};
+#define param_check_local64(name, p) __param_check(name, p, local64_t)
+
+static local64_t uv_nmi_count;
+module_param_named(nmi_count, uv_nmi_count, local64, 0644);
+
+static local64_t uv_nmi_misses;
+module_param_named(nmi_misses, uv_nmi_misses, local64, 0644);
+
+static local64_t uv_nmi_ping_count;
+module_param_named(ping_count, uv_nmi_ping_count, local64, 0644);
+
+static local64_t uv_nmi_ping_misses;
+module_param_named(ping_misses, uv_nmi_ping_misses, local64, 0644);
+
+/*
+ * Following values allow tuning for large systems under heavy loading
+ */
+static int uv_nmi_initial_delay = 100;
+module_param_named(initial_delay, uv_nmi_initial_delay, int, 0644);
+
+static int uv_nmi_slave_delay = 100;
+module_param_named(slave_delay, uv_nmi_slave_delay, int, 0644);
+
+static int uv_nmi_loop_delay = 100;
+module_param_named(loop_delay, uv_nmi_loop_delay, int, 0644);
+
+static int uv_nmi_trigger_delay = 10000;
+module_param_named(trigger_delay, uv_nmi_trigger_delay, int, 0644);
+
+static int uv_nmi_wait_count = 100;
+module_param_named(wait_count, uv_nmi_wait_count, int, 0644);
+
+static int uv_nmi_retry_count = 500;
+module_param_named(retry_count, uv_nmi_retry_count, int, 0644);
+
+/* Setup which NMI support is present in system */
+static void uv_nmi_setup_mmrs(void)
+{
+	if (uv_read_local_mmr(UVH_NMI_MMRX_SUPPORTED)) {
+		uv_write_local_mmr(UVH_NMI_MMRX_REQ,
+					1UL << UVH_NMI_MMRX_REQ_SHIFT);
+		nmi_mmr = UVH_NMI_MMRX;
+		nmi_mmr_clear = UVH_NMI_MMRX_CLEAR;
+		nmi_mmr_pending = 1UL << UVH_NMI_MMRX_SHIFT;
+		pr_info("UV: SMI NMI support: %s\n", UVH_NMI_MMRX_TYPE);
+	} else {
+		nmi_mmr = UVH_NMI_MMR;
+		nmi_mmr_clear = UVH_NMI_MMR_CLEAR;
+		nmi_mmr_pending = 1UL << UVH_NMI_MMR_SHIFT;
+		pr_info("UV: SMI NMI support: %s\n", UVH_NMI_MMR_TYPE);
+	}
+}
+
+/* Read NMI MMR and check if NMI flag was set by BMC. */
+static inline int uv_nmi_test_mmr(struct uv_hub_nmi_s *hub_nmi)
+{
+	hub_nmi->nmi_value = uv_read_local_mmr(nmi_mmr);
+	atomic_inc(&hub_nmi->read_mmr_count);
+	return !!(hub_nmi->nmi_value & nmi_mmr_pending);
+}
+
+static inline void uv_local_mmr_clear_nmi(void)
+{
+	uv_write_local_mmr(nmi_mmr_clear, nmi_mmr_pending);
+}
+
+/*
+ * If first cpu in on this hub, set hub_nmi "in_nmi" and "owner" values and
+ * return true.  If first cpu in on the system, set global "in_nmi" flag.
+ */
+static int uv_set_in_nmi(int cpu, struct uv_hub_nmi_s *hub_nmi)
+{
+	int first = atomic_add_unless(&hub_nmi->in_nmi, 1, 1);
+
+	if (first) {
+		atomic_set(&hub_nmi->cpu_owner, cpu);
+		if (atomic_add_unless(&uv_in_nmi, 1, 1))
+			atomic_set(&uv_nmi_cpu, cpu);
+
+		atomic_inc(&hub_nmi->nmi_count);
+	}
+	return first;
+}
+
+/* Check if this is a system NMI event */
+static int uv_check_nmi(struct uv_hub_nmi_s *hub_nmi)
+{
+	int cpu = smp_processor_id();
+	int nmi = 0;
+
+	local64_inc(&uv_nmi_count);
+	uv_cpu_nmi.queries++;
+
+	do {
+		nmi = atomic_read(&hub_nmi->in_nmi);
+		if (nmi)
+			break;
+
+		if (raw_spin_trylock(&hub_nmi->nmi_lock)) {
+
+			/* check hub MMR NMI flag */
+			if (uv_nmi_test_mmr(hub_nmi)) {
+				uv_set_in_nmi(cpu, hub_nmi);
+				nmi = 1;
+				break;
+			}
+
+			/* MMR NMI flag is clear */
+			raw_spin_unlock(&hub_nmi->nmi_lock);
+
+		} else {
+			/* wait a moment for the hub nmi locker to set flag */
+			cpu_relax();
+			udelay(uv_nmi_slave_delay);
+
+			/* re-check hub in_nmi flag */
+			nmi = atomic_read(&hub_nmi->in_nmi);
+			if (nmi)
+				break;
+		}
+
+		/* check if this BMC missed setting the MMR NMI flag */
+		if (!nmi) {
+			nmi = atomic_read(&uv_in_nmi);
+			if (nmi)
+				uv_set_in_nmi(cpu, hub_nmi);
+		}
+
+	} while (0);
+
+	if (!nmi)
+		local64_inc(&uv_nmi_misses);
+
+	return nmi;
+}
+
+/* Need to reset the NMI MMR register, but only once per hub. */
+static inline void uv_clear_nmi(int cpu)
+{
+	struct uv_hub_nmi_s *hub_nmi = uv_hub_nmi;
+
+	if (cpu == atomic_read(&hub_nmi->cpu_owner)) {
+		atomic_set(&hub_nmi->cpu_owner, -1);
+		atomic_set(&hub_nmi->in_nmi, 0);
+		uv_local_mmr_clear_nmi();
+		raw_spin_unlock(&hub_nmi->nmi_lock);
+	}
+}
+
+/* Print non-responding cpus */
+static void uv_nmi_nr_cpus_pr(char *fmt)
+{
+	static char cpu_list[1024];
+	int len = sizeof(cpu_list);
+	int c = cpumask_weight(uv_nmi_cpu_mask);
+	int n = cpulist_scnprintf(cpu_list, len, uv_nmi_cpu_mask);
+
+	if (n >= len-1)
+		strcpy(&cpu_list[len - 6], "...\n");
+
+	printk(fmt, c, cpu_list);
+}
+
+/* Ping non-responding cpus attemping to force them into the NMI handler */
+static void uv_nmi_nr_cpus_ping(void)
+{
+	int cpu;
+
+	for_each_cpu(cpu, uv_nmi_cpu_mask)
+		atomic_set(&uv_cpu_nmi_per(cpu).pinging, 1);
+
+	apic->send_IPI_mask(uv_nmi_cpu_mask, APIC_DM_NMI);
+}
+
+/* Clean up flags for cpus that ignored both NMI and ping */
+static void uv_nmi_cleanup_mask(void)
+{
+	int cpu;
+
+	for_each_cpu(cpu, uv_nmi_cpu_mask) {
+		atomic_set(&uv_cpu_nmi_per(cpu).pinging, 0);
+		atomic_set(&uv_cpu_nmi_per(cpu).state, UV_NMI_STATE_OUT);
+		cpumask_clear_cpu(cpu, uv_nmi_cpu_mask);
+	}
+}
+
+/* Loop waiting as cpus enter nmi handler */
+static int uv_nmi_wait_cpus(int first)
+{
+	int i, j, k, n = num_online_cpus();
+	int last_k = 0, waiting = 0;
+
+	if (first) {
+		cpumask_copy(uv_nmi_cpu_mask, cpu_online_mask);
+		k = 0;
+	} else {
+		k = n - cpumask_weight(uv_nmi_cpu_mask);
+	}
+
+	udelay(uv_nmi_initial_delay);
+	for (i = 0; i < uv_nmi_retry_count; i++) {
+		int loop_delay = uv_nmi_loop_delay;
+
+		for_each_cpu(j, uv_nmi_cpu_mask) {
+			if (atomic_read(&uv_cpu_nmi_per(j).state)) {
+				cpumask_clear_cpu(j, uv_nmi_cpu_mask);
+				if (++k >= n)
+					break;
+			}
+		}
+		if (k >= n) {		/* all in? */
+			k = n;
+			break;
+		}
+		if (last_k != k) {	/* abort if no new cpus coming in */
+			last_k = k;
+			waiting = 0;
+		} else if (++waiting > uv_nmi_wait_count)
+			break;
+
+		/* extend delay if waiting only for cpu 0 */
+		if (waiting && (n - k) == 1 &&
+		    cpumask_test_cpu(0, uv_nmi_cpu_mask))
+			loop_delay *= 100;
+
+		udelay(loop_delay);
+	}
+	atomic_set(&uv_nmi_cpus_in_nmi, k);
+	return n - k;
+}
+
+/* Wait until all slave cpus have entered UV NMI handler */
+static void uv_nmi_wait(int master)
+{
+	/* indicate this cpu is in */
+	atomic_set(&uv_cpu_nmi.state, UV_NMI_STATE_IN);
+
+	/* if not the first cpu in (the master), then we are a slave cpu */
+	if (!master)
+		return;
+
+	do {
+		/* wait for all other cpus to gather here */
+		if (!uv_nmi_wait_cpus(1))
+			break;
+
+		/* if not all made it in, send IPI NMI to them */
+		uv_nmi_nr_cpus_pr(KERN_ALERT
+			"UV: Sending NMI IPI to %d non-responding CPUs: %s\n");
+		uv_nmi_nr_cpus_ping();
+
+		/* if all cpus are in, then done */
+		if (!uv_nmi_wait_cpus(0))
+			break;
+
+		uv_nmi_nr_cpus_pr(KERN_ALERT
+			"UV: %d CPUs not in NMI loop: %s\n");
+	} while (0);
+
+	pr_alert("UV: %d of %d CPUs in NMI\n",
+		atomic_read(&uv_nmi_cpus_in_nmi), num_online_cpus());
+}
+
+/* Dump this cpu's state */
+static void uv_nmi_dump_state_cpu(int cpu, struct pt_regs *regs)
+{
+	const char *dots = " ................................. ";
+
+	printk(KERN_DEFAULT "UV:%sNMI process trace for CPU %d\n", dots, cpu);
+	show_regs(regs);
+	atomic_set(&uv_cpu_nmi.state, UV_NMI_STATE_DUMP_DONE);
+}
+
+/* Trigger a slave cpu to dump it's state */
+static void uv_nmi_trigger_dump(int cpu)
+{
+	int retry = uv_nmi_trigger_delay;
+
+	if (atomic_read(&uv_cpu_nmi_per(cpu).state) != UV_NMI_STATE_IN)
+		return;
+
+	atomic_set(&uv_cpu_nmi_per(cpu).state, UV_NMI_STATE_DUMP);
+	do {
+		cpu_relax();
+		udelay(10);
+		if (atomic_read(&uv_cpu_nmi_per(cpu).state)
+				!= UV_NMI_STATE_DUMP)
+			return;
+	} while (--retry > 0);
+
+	pr_crit("UV: CPU %d stuck in process dump function\n", cpu);
+	atomic_set(&uv_cpu_nmi_per(cpu).state, UV_NMI_STATE_DUMP_DONE);
+}
+
+/* Wait until all cpus ready to exit */
+static void uv_nmi_sync_exit(int master)
+{
+	atomic_dec(&uv_nmi_cpus_in_nmi);
+	if (master) {
+		while (atomic_read(&uv_nmi_cpus_in_nmi) > 0)
+			cpu_relax();
+		atomic_set(&uv_nmi_slave_continue, SLAVE_CLEAR);
+	} else {
+		while (atomic_read(&uv_nmi_slave_continue))
+			cpu_relax();
+	}
+}
+
+/* Walk through cpu list and dump state of each */
+static void uv_nmi_dump_state(int cpu, struct pt_regs *regs, int master)
+{
+	if (master) {
+		int tcpu;
+		int ignored = 0;
+		int saved_console_loglevel = console_loglevel;
+
+		pr_alert("UV: tracing processes for %d CPUs from CPU %d\n",
+			atomic_read(&uv_nmi_cpus_in_nmi), cpu);
+
+		console_loglevel = uv_nmi_loglevel;
+		atomic_set(&uv_nmi_slave_continue, SLAVE_EXIT);
+		for_each_online_cpu(tcpu) {
+			if (cpumask_test_cpu(tcpu, uv_nmi_cpu_mask))
+				ignored++;
+			else if (tcpu == cpu)
+				uv_nmi_dump_state_cpu(tcpu, regs);
+			else
+				uv_nmi_trigger_dump(tcpu);
 		}
-		spin_unlock(&uv_blade_info[bid].nmi_lock);
+		if (ignored)
+			printk(KERN_DEFAULT "UV: %d CPUs ignored NMI\n",
+				ignored);
+
+		console_loglevel = saved_console_loglevel;
+		pr_alert("UV: process trace complete\n");
+	} else {
+		while (!atomic_read(&uv_nmi_slave_continue))
+			cpu_relax();
+		while (atomic_read(&uv_cpu_nmi.state) != UV_NMI_STATE_DUMP)
+			cpu_relax();
+		uv_nmi_dump_state_cpu(cpu, regs);
 	}
+	uv_nmi_sync_exit(master);
+}
 
-	if (likely(__get_cpu_var(cpu_last_nmi_count) ==
-			uv_blade_info[bid].nmi_count))
+static void uv_nmi_touch_watchdogs(void)
+{
+	touch_softlockup_watchdog_sync();
+	clocksource_touch_watchdog();
+	rcu_cpu_stall_reset();
+	touch_nmi_watchdog();
+}
+
+/*
+ * UV NMI handler
+ */
+int uv_handle_nmi(unsigned int reason, struct pt_regs *regs)
+{
+	struct uv_hub_nmi_s *hub_nmi = uv_hub_nmi;
+	int cpu = smp_processor_id();
+	int master = 0;
+	unsigned long flags;
+
+	local_irq_save(flags);
+
+	/* If not a UV System NMI, ignore */
+	if (!atomic_read(&uv_cpu_nmi.pinging) && !uv_check_nmi(hub_nmi)) {
+		local_irq_restore(flags);
 		return NMI_DONE;
+	}
 
-	__get_cpu_var(cpu_last_nmi_count) = uv_blade_info[bid].nmi_count;
+	/* Indicate we are the first CPU into the NMI handler */
+	master = (atomic_read(&uv_nmi_cpu) == cpu);
 
-	/*
-	 * Use a lock so only one cpu prints at a time.
-	 * This prevents intermixed output.
-	 */
-	spin_lock(&uv_nmi_lock);
-	pr_info("UV NMI stack dump cpu %u:\n", smp_processor_id());
-	dump_stack();
-	spin_unlock(&uv_nmi_lock);
+	/* Pause as all cpus enter the NMI handler */
+	uv_nmi_wait(master);
+
+	/* Dump state of each cpu */
+	uv_nmi_dump_state(cpu, regs, master);
+
+	/* Clear per_cpu "in nmi" flag */
+	atomic_set(&uv_cpu_nmi.state, UV_NMI_STATE_OUT);
+
+	/* Clear MMR NMI flag on each hub */
+	uv_clear_nmi(cpu);
+
+	/* Clear global flags */
+	if (master) {
+		if (cpumask_weight(uv_nmi_cpu_mask))
+			uv_nmi_cleanup_mask();
+		atomic_set(&uv_nmi_cpus_in_nmi, -1);
+		atomic_set(&uv_nmi_cpu, -1);
+		atomic_set(&uv_in_nmi, 0);
+	}
+
+	uv_nmi_touch_watchdogs();
+	local_irq_restore(flags);
 
 	return NMI_HANDLED;
 }
 
+/*
+ * NMI handler for pulling in CPUs when perf events are grabbing our NMI
+ */
+int uv_handle_nmi_ping(unsigned int reason, struct pt_regs *regs)
+{
+	int ret;
+
+	uv_cpu_nmi.queries++;
+	if (!atomic_read(&uv_cpu_nmi.pinging)) {
+		local64_inc(&uv_nmi_ping_misses);
+		return NMI_DONE;
+	}
+
+	uv_cpu_nmi.pings++;
+	local64_inc(&uv_nmi_ping_count);
+	ret = uv_handle_nmi(reason, regs);
+	atomic_set(&uv_cpu_nmi.pinging, 0);
+	return ret;
+}
+
 void uv_register_nmi_notifier(void)
 {
 	if (register_nmi_handler(NMI_UNKNOWN, uv_handle_nmi, 0, "uv"))
-		pr_warn("UV NMI handler failed to register\n");
+		pr_warn("UV: NMI handler failed to register\n");
+
+	if (register_nmi_handler(NMI_LOCAL, uv_handle_nmi_ping, 0, "uvping"))
+		pr_warn("UV: PING NMI handler failed to register\n");
 }
 
 void uv_nmi_init(void)
@@ -100,3 +546,30 @@ void uv_nmi_init(void)
 	apic_write(APIC_LVT1, value);
 }
 
+void uv_nmi_setup(void)
+{
+	int size = sizeof(void *) * (1 << NODES_SHIFT);
+	int cpu, nid;
+
+	/* Setup hub nmi info */
+	uv_nmi_setup_mmrs();
+	uv_hub_nmi_list = kzalloc(size, GFP_KERNEL);
+	pr_info("UV: NMI hub list @ 0x%p (%d)\n", uv_hub_nmi_list, size);
+	BUG_ON(!uv_hub_nmi_list);
+	size = sizeof(struct uv_hub_nmi_s);
+	for_each_present_cpu(cpu) {
+		nid = cpu_to_node(cpu);
+		if (uv_hub_nmi_list[nid] == NULL) {
+			uv_hub_nmi_list[nid] = kzalloc_node(size,
+							    GFP_KERNEL, nid);
+			BUG_ON(!uv_hub_nmi_list[nid]);
+			raw_spin_lock_init(&(uv_hub_nmi_list[nid]->nmi_lock));
+			atomic_set(&uv_hub_nmi_list[nid]->cpu_owner, -1);
+		}
+		uv_hub_nmi_per(cpu) = uv_hub_nmi_list[nid];
+	}
+	alloc_cpumask_var(&uv_nmi_cpu_mask, GFP_KERNEL);
+	BUG_ON(!uv_nmi_cpu_mask);
+}
+
+
-- 
cgit 


From 3c121d9a21dc16ef030ad6ca3ebb159b5726fab9 Mon Sep 17 00:00:00 2001
From: Mike Travis <travis@sgi.com>
Date: Mon, 23 Sep 2013 16:25:02 -0500
Subject: x86/UV: Add summary of cpu activity to UV NMI handler

The standard NMI handler dumps the states of all the cpus.  This
includes a full register dump and stack trace.  This can be way
more information than what is needed.  This patch adds a
"summary" dump that is basically a form of the "ps" command.  It
includes the symbolic IP address as well as the command field
and basic process information.

It is enabled when the nmi action is changed to "ips".

Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Dimitri Sivanich <sivanich@sgi.com>
Reviewed-by: Hedi Berriche <hedi@sgi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Jason Wessel <jason.wessel@windriver.com>
Link: http://lkml.kernel.org/r/20130923212500.507922930@asylum.americas.sgi.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/platform/uv/uv_nmi.c | 48 +++++++++++++++++++++++++++++++++++++++----
 1 file changed, 44 insertions(+), 4 deletions(-)

diff --git a/arch/x86/platform/uv/uv_nmi.c b/arch/x86/platform/uv/uv_nmi.c
index fb02ea7d2b2d..4efcde1b9d54 100644
--- a/arch/x86/platform/uv/uv_nmi.c
+++ b/arch/x86/platform/uv/uv_nmi.c
@@ -139,6 +139,19 @@ module_param_named(wait_count, uv_nmi_wait_count, int, 0644);
 static int uv_nmi_retry_count = 500;
 module_param_named(retry_count, uv_nmi_retry_count, int, 0644);
 
+/*
+ * Valid NMI Actions:
+ *  "dump"	- dump process stack for each cpu
+ *  "ips"	- dump IP info for each cpu
+ */
+static char uv_nmi_action[8] = "dump";
+module_param_string(action, uv_nmi_action, sizeof(uv_nmi_action), 0644);
+
+static inline bool uv_nmi_action_is(const char *action)
+{
+	return (strncmp(uv_nmi_action, action, strlen(action)) == 0);
+}
+
 /* Setup which NMI support is present in system */
 static void uv_nmi_setup_mmrs(void)
 {
@@ -367,13 +380,38 @@ static void uv_nmi_wait(int master)
 		atomic_read(&uv_nmi_cpus_in_nmi), num_online_cpus());
 }
 
+static void uv_nmi_dump_cpu_ip_hdr(void)
+{
+	printk(KERN_DEFAULT
+		"\nUV: %4s %6s %-32s %s   (Note: PID 0 not listed)\n",
+		"CPU", "PID", "COMMAND", "IP");
+}
+
+static void uv_nmi_dump_cpu_ip(int cpu, struct pt_regs *regs)
+{
+	printk(KERN_DEFAULT "UV: %4d %6d %-32.32s ",
+		cpu, current->pid, current->comm);
+
+	printk_address(regs->ip, 1);
+}
+
 /* Dump this cpu's state */
 static void uv_nmi_dump_state_cpu(int cpu, struct pt_regs *regs)
 {
 	const char *dots = " ................................. ";
 
-	printk(KERN_DEFAULT "UV:%sNMI process trace for CPU %d\n", dots, cpu);
-	show_regs(regs);
+	if (uv_nmi_action_is("ips")) {
+		if (cpu == 0)
+			uv_nmi_dump_cpu_ip_hdr();
+
+		if (current->pid != 0)
+			uv_nmi_dump_cpu_ip(cpu, regs);
+
+	} else if (uv_nmi_action_is("dump")) {
+		printk(KERN_DEFAULT
+			"UV:%sNMI process trace for CPU %d\n", dots, cpu);
+		show_regs(regs);
+	}
 	atomic_set(&uv_cpu_nmi.state, UV_NMI_STATE_DUMP_DONE);
 }
 
@@ -420,7 +458,8 @@ static void uv_nmi_dump_state(int cpu, struct pt_regs *regs, int master)
 		int ignored = 0;
 		int saved_console_loglevel = console_loglevel;
 
-		pr_alert("UV: tracing processes for %d CPUs from CPU %d\n",
+		pr_alert("UV: tracing %s for %d CPUs from CPU %d\n",
+			uv_nmi_action_is("ips") ? "IPs" : "processes",
 			atomic_read(&uv_nmi_cpus_in_nmi), cpu);
 
 		console_loglevel = uv_nmi_loglevel;
@@ -482,7 +521,8 @@ int uv_handle_nmi(unsigned int reason, struct pt_regs *regs)
 	uv_nmi_wait(master);
 
 	/* Dump state of each cpu */
-	uv_nmi_dump_state(cpu, regs, master);
+	if (uv_nmi_action_is("ips") || uv_nmi_action_is("dump"))
+		uv_nmi_dump_state(cpu, regs, master);
 
 	/* Clear per_cpu "in nmi" flag */
 	atomic_set(&uv_cpu_nmi.state, UV_NMI_STATE_OUT);
-- 
cgit 


From 12ba6c990fab50fe568f3ad8715e81e356552428 Mon Sep 17 00:00:00 2001
From: Mike Travis <travis@sgi.com>
Date: Mon, 23 Sep 2013 16:25:03 -0500
Subject: x86/UV: Add kdump to UV NMI handler

If a system has hung and it no longer responds to external
events, this patch adds the capability of doing a standard kdump
and system reboot then triggered by the system NMI command.

It is enabled when the nmi action is changed to "kdump" and the
kernel is built with CONFIG_KEXEC enabled.

Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Dimitri Sivanich <sivanich@sgi.com>
Reviewed-by: Hedi Berriche <hedi@sgi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Jason Wessel <jason.wessel@windriver.com>
Link: http://lkml.kernel.org/r/20130923212500.660567460@asylum.americas.sgi.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/platform/uv/uv_nmi.c | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/arch/x86/platform/uv/uv_nmi.c b/arch/x86/platform/uv/uv_nmi.c
index 4efcde1b9d54..2579fbd6b95c 100644
--- a/arch/x86/platform/uv/uv_nmi.c
+++ b/arch/x86/platform/uv/uv_nmi.c
@@ -21,6 +21,7 @@
 
 #include <linux/cpu.h>
 #include <linux/delay.h>
+#include <linux/kexec.h>
 #include <linux/module.h>
 #include <linux/nmi.h>
 #include <linux/sched.h>
@@ -70,6 +71,7 @@ static atomic_t	uv_in_nmi;
 static atomic_t uv_nmi_cpu = ATOMIC_INIT(-1);
 static atomic_t uv_nmi_cpus_in_nmi = ATOMIC_INIT(-1);
 static atomic_t uv_nmi_slave_continue;
+static atomic_t uv_nmi_kexec_failed;
 static cpumask_var_t uv_nmi_cpu_mask;
 
 /* Values for uv_nmi_slave_continue */
@@ -143,6 +145,7 @@ module_param_named(retry_count, uv_nmi_retry_count, int, 0644);
  * Valid NMI Actions:
  *  "dump"	- dump process stack for each cpu
  *  "ips"	- dump IP info for each cpu
+ *  "kdump"	- do crash dump
  */
 static char uv_nmi_action[8] = "dump";
 module_param_string(action, uv_nmi_action, sizeof(uv_nmi_action), 0644);
@@ -496,6 +499,40 @@ static void uv_nmi_touch_watchdogs(void)
 	touch_nmi_watchdog();
 }
 
+#if defined(CONFIG_KEXEC)
+static void uv_nmi_kdump(int cpu, int master, struct pt_regs *regs)
+{
+	/* Call crash to dump system state */
+	if (master) {
+		pr_emerg("UV: NMI executing crash_kexec on CPU%d\n", cpu);
+		crash_kexec(regs);
+
+		pr_emerg("UV: crash_kexec unexpectedly returned, ");
+		if (!kexec_crash_image) {
+			pr_cont("crash kernel not loaded\n");
+			atomic_set(&uv_nmi_kexec_failed, 1);
+			uv_nmi_sync_exit(1);
+			return;
+		}
+		pr_cont("kexec busy, stalling cpus while waiting\n");
+	}
+
+	/* If crash exec fails the slaves should return, otherwise stall */
+	while (atomic_read(&uv_nmi_kexec_failed) == 0)
+		mdelay(10);
+
+	/* Crash kernel most likely not loaded, return in an orderly fashion */
+	uv_nmi_sync_exit(0);
+}
+
+#else /* !CONFIG_KEXEC */
+static inline void uv_nmi_kdump(int cpu, int master, struct pt_regs *regs)
+{
+	if (master)
+		pr_err("UV: NMI kdump: KEXEC not supported in this kernel\n");
+}
+#endif /* !CONFIG_KEXEC */
+
 /*
  * UV NMI handler
  */
@@ -517,6 +554,10 @@ int uv_handle_nmi(unsigned int reason, struct pt_regs *regs)
 	/* Indicate we are the first CPU into the NMI handler */
 	master = (atomic_read(&uv_nmi_cpu) == cpu);
 
+	/* If NMI action is "kdump", then attempt to do it */
+	if (uv_nmi_action_is("kdump"))
+		uv_nmi_kdump(cpu, master, regs);
+
 	/* Pause as all cpus enter the NMI handler */
 	uv_nmi_wait(master);
 
-- 
cgit 


From 8eba18428ac926f436064ac281e76d36d51bd631 Mon Sep 17 00:00:00 2001
From: Mike Travis <travis@sgi.com>
Date: Mon, 23 Sep 2013 16:25:06 -0500
Subject: x86/UV: Add uvtrace support

This patch adds support for the uvtrace module by providing a
skeleton call to the registered trace function.  It also
provides another separate 'NMI' tracer that is triggered by the
system wide 'power nmi' command.

Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Dimitri Sivanich <sivanich@sgi.com>
Reviewed-by: Hedi Berriche <hedi@sgi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Jason Wessel <jason.wessel@windriver.com>
Link: http://lkml.kernel.org/r/20130923212501.185052551@asylum.americas.sgi.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/include/asm/uv/uv.h  |  8 ++++++++
 arch/x86/platform/uv/uv_nmi.c | 13 ++++++++++++-
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/uv/uv.h b/arch/x86/include/asm/uv/uv.h
index 6b964a0b86d1..8b1283daa332 100644
--- a/arch/x86/include/asm/uv/uv.h
+++ b/arch/x86/include/asm/uv/uv.h
@@ -14,6 +14,13 @@ extern void uv_cpu_init(void);
 extern void uv_nmi_init(void);
 extern void uv_register_nmi_notifier(void);
 extern void uv_system_init(void);
+extern void (*uv_trace_nmi_func)(unsigned int reason, struct pt_regs *regs);
+extern void (*uv_trace_func)(const char *f, const int l, const char *fmt, ...);
+#define uv_trace(fmt, ...)						\
+do {									\
+	if (unlikely(uv_trace_func))					\
+		(uv_trace_func)(__func__, __LINE__, fmt, ##__VA_ARGS__);\
+} while (0)
 extern const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
 						 struct mm_struct *mm,
 						 unsigned long start,
@@ -26,6 +33,7 @@ static inline enum uv_system_type get_uv_system_type(void) { return UV_NONE; }
 static inline int is_uv_system(void)	{ return 0; }
 static inline void uv_cpu_init(void)	{ }
 static inline void uv_system_init(void)	{ }
+static inline void uv_trace(void *fmt, ...)	{ }
 static inline void uv_register_nmi_notifier(void) { }
 static inline const struct cpumask *
 uv_flush_tlb_others(const struct cpumask *cpumask, struct mm_struct *mm,
diff --git a/arch/x86/platform/uv/uv_nmi.c b/arch/x86/platform/uv/uv_nmi.c
index 2579fbd6b95c..c171ca533156 100644
--- a/arch/x86/platform/uv/uv_nmi.c
+++ b/arch/x86/platform/uv/uv_nmi.c
@@ -1,5 +1,5 @@
 /*
- * SGI NMI support routines
+ * SGI NMI/TRACE support routines
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -36,6 +36,13 @@
 #include <asm/uv/uv_hub.h>
 #include <asm/uv/uv_mmrs.h>
 
+void (*uv_trace_func)(const char *f, const int l, const char *fmt, ...);
+EXPORT_SYMBOL(uv_trace_func);
+
+void (*uv_trace_nmi_func)(unsigned int reason, struct pt_regs *regs);
+EXPORT_SYMBOL(uv_trace_nmi_func);
+
+
 /*
  * UV handler for NMI
  *
@@ -551,6 +558,10 @@ int uv_handle_nmi(unsigned int reason, struct pt_regs *regs)
 		return NMI_DONE;
 	}
 
+	/* Call possible NMI trace function */
+	if (unlikely(uv_trace_nmi_func))
+		(uv_trace_nmi_func)(reason, regs);
+
 	/* Indicate we are the first CPU into the NMI handler */
 	master = (atomic_read(&uv_nmi_cpu) == cpu);
 
-- 
cgit 


From 8a1f4653f27ffd5d61088cf6b95c39bb13bf6132 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Tue, 24 Sep 2013 09:52:40 +0200
Subject: x86/UV: Check for alloc_cpumask_var() failures properly in
 uv_nmi_setup()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

GCC warned about:

   arch/x86/platform/uv/uv_nmi.c: In function ‘uv_nmi_setup’:
   arch/x86/platform/uv/uv_nmi.c:664:2: warning: the address of ‘uv_nmi_cpu_mask’ will always evaluate as ‘true’

The reason is this code:

        alloc_cpumask_var(&uv_nmi_cpu_mask, GFP_KERNEL);
        BUG_ON(!uv_nmi_cpu_mask);

which is not the way to check for alloc_cpumask_var() failures - its
return code should be checked instead.

Cc: Mike Travis <travis@sgi.com>
Link: http://lkml.kernel.org/n/tip-2pXRemsjupmvonbpmmnzleo1@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/platform/uv/uv_nmi.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/platform/uv/uv_nmi.c b/arch/x86/platform/uv/uv_nmi.c
index c171ca533156..9126dfb6dbfc 100644
--- a/arch/x86/platform/uv/uv_nmi.c
+++ b/arch/x86/platform/uv/uv_nmi.c
@@ -660,8 +660,7 @@ void uv_nmi_setup(void)
 		}
 		uv_hub_nmi_per(cpu) = uv_hub_nmi_list[nid];
 	}
-	alloc_cpumask_var(&uv_nmi_cpu_mask, GFP_KERNEL);
-	BUG_ON(!uv_nmi_cpu_mask);
+	BUG_ON(!alloc_cpumask_var(&uv_nmi_cpu_mask, GFP_KERNEL));
 }
 
 
-- 
cgit 


From e76eebee70948060d80b5f9edd2d97062049df53 Mon Sep 17 00:00:00 2001
From: Yu Chao <chao2.yu@samsung.com>
Date: Thu, 12 Sep 2013 11:17:51 +0800
Subject: f2fs: optimize fs_lock for better performance

There is a performance problem: when all sbi->fs_lock are holded, then
all the following threads may get the same next_lock value from sbi->next_lock_num
in function mutex_lock_op, and wait for the same lock(fs_lock[next_lock]),
it may cause performance reduce.
So we move the sbi->next_lock_num++ before getting lock, this will average the
following threads if all sbi->fs_lock are holded.

v1-->v2:
	Drop the needless spin_lock as Jaegeuk suggested.

Suggested-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Signed-off-by: Yu Chao <chao2.yu@samsung.com>
Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/f2fs.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 608f0df5b919..7fd99d8bd2ff 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -544,15 +544,15 @@ static inline void mutex_unlock_all(struct f2fs_sb_info *sbi)
 
 static inline int mutex_lock_op(struct f2fs_sb_info *sbi)
 {
-	unsigned char next_lock = sbi->next_lock_num % NR_GLOBAL_LOCKS;
+	unsigned char next_lock;
 	int i = 0;
 
 	for (; i < NR_GLOBAL_LOCKS; i++)
 		if (mutex_trylock(&sbi->fs_lock[i]))
 			return i;
 
+	next_lock = sbi->next_lock_num++ % NR_GLOBAL_LOCKS;
 	mutex_lock(&sbi->fs_lock[next_lock]);
-	sbi->next_lock_num++;
 	return next_lock;
 }
 
-- 
cgit 


From a57e564d14d9d123b2dd4ff1c933da0d900e0b1d Mon Sep 17 00:00:00 2001
From: Jin Xu <jinuxstyle@gmail.com>
Date: Fri, 13 Sep 2013 08:38:54 +0800
Subject: f2fs: optimize the victim searching loop slightly

Since the MAX_VICTIM_SEARCH has been enlarged from 20 to 4096,
the victim searching overhead will be increased much than before,
especially for SSR that searches victim for use quiet often.
This patch intends to reduce the overhead a little bit by:
- make the get_gc_cost a inline routine to reduce function call
  overhead
- reduce multiplication and division operations
- reduce unnecessary comparison operation

Signed-off-by: Jin Xu <jinuxstyle@gmail.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/gc.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 2f157e883687..fbad96846c7c 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -236,8 +236,8 @@ static unsigned int get_cb_cost(struct f2fs_sb_info *sbi, unsigned int segno)
 	return UINT_MAX - ((100 * (100 - u) * age) / (100 + u));
 }
 
-static unsigned int get_gc_cost(struct f2fs_sb_info *sbi, unsigned int segno,
-					struct victim_sel_policy *p)
+static inline unsigned int get_gc_cost(struct f2fs_sb_info *sbi,
+			unsigned int segno, struct victim_sel_policy *p)
 {
 	if (p->alloc_mode == SSR)
 		return get_seg_entry(sbi, segno)->ckpt_valid_blocks;
@@ -293,7 +293,11 @@ static int get_victim_by_default(struct f2fs_sb_info *sbi,
 			}
 			break;
 		}
-		p.offset = ((segno / p.ofs_unit) * p.ofs_unit) + p.ofs_unit;
+
+		p.offset = segno + p.ofs_unit;
+		if (p.ofs_unit > 1)
+			p.offset -= segno % p.ofs_unit;
+
 		secno = GET_SECNO(sbi, segno);
 
 		if (sec_usage_check(sbi, secno))
@@ -306,10 +310,9 @@ static int get_victim_by_default(struct f2fs_sb_info *sbi,
 		if (p.min_cost > cost) {
 			p.min_segno = segno;
 			p.min_cost = cost;
-		}
-
-		if (cost == max_cost)
+		} else if (unlikely(cost == max_cost)) {
 			continue;
+		}
 
 		if (nsearched++ >= p.max_search) {
 			sbi->last_victim[p.gc_mode] = segno;
-- 
cgit 


From cc7b1bb173676621b092b61d22d8d12b05efb5e8 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao2.yu@samsung.com>
Date: Sun, 22 Sep 2013 15:50:50 +0800
Subject: f2fs: avoid allocating failure in bio_alloc

This patch add macro MAX_BIO_BLOCKS to limit value of npages in
f2fs_bio_alloc, it can avoid allocating failure in bio_alloc caused by
npages is larger than BIO_MAX_PAGES.

Signed-off-by: Yu Chao <chao2.yu@samsung.com>
Reviewed-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/segment.c | 4 +++-
 fs/f2fs/segment.h | 2 ++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 09af9c7b0f52..bd79bbeceb1d 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -657,6 +657,7 @@ static void submit_write_page(struct f2fs_sb_info *sbi, struct page *page,
 				block_t blk_addr, enum page_type type)
 {
 	struct block_device *bdev = sbi->sb->s_bdev;
+	int bio_blocks;
 
 	verify_block_addr(sbi, blk_addr);
 
@@ -676,7 +677,8 @@ retry:
 			goto retry;
 		}
 
-		sbi->bio[type] = f2fs_bio_alloc(bdev, max_hw_blocks(sbi));
+		bio_blocks = MAX_BIO_BLOCKS(max_hw_blocks(sbi));
+		sbi->bio[type] = f2fs_bio_alloc(bdev, bio_blocks);
 		sbi->bio[type]->bi_sector = SECTOR_FROM_BLOCK(sbi, blk_addr);
 		sbi->bio[type]->bi_private = priv;
 		/*
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index bdd10eab8c40..7f94d78cda3d 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -90,6 +90,8 @@
 	(blk_addr << ((sbi)->log_blocksize - F2FS_LOG_SECTOR_SIZE))
 #define SECTOR_TO_BLOCK(sbi, sectors)					\
 	(sectors >> ((sbi)->log_blocksize - F2FS_LOG_SECTOR_SIZE))
+#define MAX_BIO_BLOCKS(max_hw_blocks)					\
+	(min((int)max_hw_blocks, BIO_MAX_PAGES))
 
 /* during checkpoint, bio_private is used to synchronize the last bio */
 struct bio_private {
-- 
cgit 


From 61ea0c0ba904a55f55317d850c1072ff7835ac92 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 24 Sep 2013 10:35:13 +0100
Subject: KEYS: Skip key state checks when checking for possession

Skip key state checks (invalidation, revocation and expiration) when checking
for possession.  Without this, keys that have been marked invalid, revoked
keys and expired keys are not given a possession attribute - which means the
possessor is not granted any possession permits and cannot do anything with
them unless they also have one a user, group or other permit.

This causes failures in the keyutils test suite's revocation and expiration
tests now that commit 96b5c8fea6c0861621051290d705ec2e971963f1 reduced the
initial permissions granted to a key.

The failures are due to accesses to revoked and expired keys being given
EACCES instead of EKEYREVOKED or EKEYEXPIRED.

Signed-off-by: David Howells <dhowells@redhat.com>
---
 security/keys/internal.h         | 1 +
 security/keys/process_keys.c     | 8 +++++---
 security/keys/request_key.c      | 6 ++++--
 security/keys/request_key_auth.c | 2 +-
 4 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/security/keys/internal.h b/security/keys/internal.h
index d4f1468b9b50..df971feceaf2 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -124,6 +124,7 @@ extern key_ref_t search_my_process_keyrings(struct key_type *type,
 extern key_ref_t search_process_keyrings(struct key_type *type,
 					 const void *description,
 					 key_match_func_t match,
+					 bool no_state_check,
 					 const struct cred *cred);
 
 extern struct key *find_keyring_by_name(const char *name, bool skip_perm_check);
diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
index 42defae1e161..a3410d605849 100644
--- a/security/keys/process_keys.c
+++ b/security/keys/process_keys.c
@@ -440,6 +440,7 @@ found:
 key_ref_t search_process_keyrings(struct key_type *type,
 				  const void *description,
 				  key_match_func_t match,
+				  bool no_state_check,
 				  const struct cred *cred)
 {
 	struct request_key_auth *rka;
@@ -448,7 +449,7 @@ key_ref_t search_process_keyrings(struct key_type *type,
 	might_sleep();
 
 	key_ref = search_my_process_keyrings(type, description, match,
-					     false, cred);
+					     no_state_check, cred);
 	if (!IS_ERR(key_ref))
 		goto found;
 	err = key_ref;
@@ -468,7 +469,8 @@ key_ref_t search_process_keyrings(struct key_type *type,
 			rka = cred->request_key_auth->payload.data;
 
 			key_ref = search_process_keyrings(type, description,
-							  match, rka->cred);
+							  match, no_state_check,
+							  rka->cred);
 
 			up_read(&cred->request_key_auth->sem);
 
@@ -675,7 +677,7 @@ try_again:
 		/* check to see if we possess the key */
 		skey_ref = search_process_keyrings(key->type, key,
 						   lookup_user_key_possessed,
-						   cred);
+						   true, cred);
 
 		if (!IS_ERR(skey_ref)) {
 			key_put(key);
diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index c411f9bb156b..172115b38054 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -390,7 +390,8 @@ static int construct_alloc_key(struct key_type *type,
 	 * waited for locks */
 	mutex_lock(&key_construction_mutex);
 
-	key_ref = search_process_keyrings(type, description, type->match, cred);
+	key_ref = search_process_keyrings(type, description, type->match,
+					  false, cred);
 	if (!IS_ERR(key_ref))
 		goto key_already_present;
 
@@ -539,7 +540,8 @@ struct key *request_key_and_link(struct key_type *type,
 	       dest_keyring, flags);
 
 	/* search all the process keyrings for a key */
-	key_ref = search_process_keyrings(type, description, type->match, cred);
+	key_ref = search_process_keyrings(type, description, type->match,
+					  false, cred);
 
 	if (!IS_ERR(key_ref)) {
 		key = key_ref_to_ptr(key_ref);
diff --git a/security/keys/request_key_auth.c b/security/keys/request_key_auth.c
index 85730d5a5a59..92077de555df 100644
--- a/security/keys/request_key_auth.c
+++ b/security/keys/request_key_auth.c
@@ -247,7 +247,7 @@ struct key *key_get_instantiation_authkey(key_serial_t target_id)
 		&key_type_request_key_auth,
 		(void *) (unsigned long) target_id,
 		key_get_instantiation_authkey_match,
-		cred);
+		false, cred);
 
 	if (IS_ERR(authkey_ref)) {
 		authkey = ERR_CAST(authkey_ref);
-- 
cgit 


From a5b4bd2874d9032b42db8cc4880058576c561b06 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 24 Sep 2013 10:35:14 +0100
Subject: KEYS: Use bool in make_key_ref() and is_key_possessed()

Make make_key_ref() take a bool possession parameter and make
is_key_possessed() return a bool.

Signed-off-by: David Howells <dhowells@redhat.com>
---
 Documentation/security/keys.txt | 7 +++----
 include/linux/key.h             | 4 ++--
 security/keys/keyring.c         | 5 +++--
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/Documentation/security/keys.txt b/Documentation/security/keys.txt
index 7b4145d00452..9ede67084f0b 100644
--- a/Documentation/security/keys.txt
+++ b/Documentation/security/keys.txt
@@ -865,15 +865,14 @@ encountered:
      calling processes has a searchable link to the key from one of its
      keyrings. There are three functions for dealing with these:
 
-	key_ref_t make_key_ref(const struct key *key,
-			       unsigned long possession);
+	key_ref_t make_key_ref(const struct key *key, bool possession);
 
 	struct key *key_ref_to_ptr(const key_ref_t key_ref);
 
-	unsigned long is_key_possessed(const key_ref_t key_ref);
+	bool is_key_possessed(const key_ref_t key_ref);
 
      The first function constructs a key reference from a key pointer and
-     possession information (which must be 0 or 1 and not any other value).
+     possession information (which must be true or false).
 
      The second function retrieves the key pointer from a reference and the
      third retrieves the possession flag.
diff --git a/include/linux/key.h b/include/linux/key.h
index 4dfde1161c5e..51bce2950de4 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -99,7 +99,7 @@ struct keyring_name;
 typedef struct __key_reference_with_attributes *key_ref_t;
 
 static inline key_ref_t make_key_ref(const struct key *key,
-				     unsigned long possession)
+				     bool possession)
 {
 	return (key_ref_t) ((unsigned long) key | possession);
 }
@@ -109,7 +109,7 @@ static inline struct key *key_ref_to_ptr(const key_ref_t key_ref)
 	return (struct key *) ((unsigned long) key_ref & ~1UL);
 }
 
-static inline unsigned long is_key_possessed(const key_ref_t key_ref)
+static inline bool is_key_possessed(const key_ref_t key_ref)
 {
 	return (unsigned long) key_ref & 1UL;
 }
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index 6ece7f2e5707..f78406372ebe 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -329,9 +329,10 @@ key_ref_t keyring_search_aux(key_ref_t keyring_ref,
 
 	struct keyring_list *keylist;
 	struct timespec now;
-	unsigned long possessed, kflags;
+	unsigned long kflags;
 	struct key *keyring, *key;
 	key_ref_t key_ref;
+	bool possessed;
 	long err;
 	int sp, nkeys, kix;
 
@@ -542,8 +543,8 @@ key_ref_t __keyring_search_one(key_ref_t keyring_ref,
 			       key_perm_t perm)
 {
 	struct keyring_list *klist;
-	unsigned long possessed;
 	struct key *keyring, *key;
+	bool possessed;
 	int nkeys, loop;
 
 	keyring = key_ref_to_ptr(keyring_ref);
-- 
cgit 


From 7e55ca6dcd07b45619035df343c9614a3ab35034 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 24 Sep 2013 10:35:14 +0100
Subject: KEYS: key_is_dead() should take a const key pointer argument

key_is_dead() should take a const key pointer argument as it doesn't modify
what it points to.

Signed-off-by: David Howells <dhowells@redhat.com>
---
 security/keys/internal.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/keys/internal.h b/security/keys/internal.h
index df971feceaf2..490aef5ba34b 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -203,7 +203,7 @@ extern struct key *key_get_instantiation_authkey(key_serial_t target_id);
 /*
  * Determine whether a key is dead.
  */
-static inline bool key_is_dead(struct key *key, time_t limit)
+static inline bool key_is_dead(const struct key *key, time_t limit)
 {
 	return
 		key->flags & ((1 << KEY_FLAG_DEAD) |
-- 
cgit 


From 16feef4340172b7dbb9cba60850e78fa6388adf1 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 24 Sep 2013 10:35:15 +0100
Subject: KEYS: Consolidate the concept of an 'index key' for key access

Consolidate the concept of an 'index key' for accessing keys.  The index key
is the search term needed to find a key directly - basically the key type and
the key description.  We can add to that the description length.

This will be useful when turning a keyring into an associative array rather
than just a pointer block.

Signed-off-by: David Howells <dhowells@redhat.com>
---
 include/linux/key.h         | 21 +++++++++----
 security/keys/internal.h    |  8 ++---
 security/keys/key.c         | 72 +++++++++++++++++++++++----------------------
 security/keys/keyring.c     | 37 +++++++++++------------
 security/keys/request_key.c | 12 +++++---
 5 files changed, 83 insertions(+), 67 deletions(-)

diff --git a/include/linux/key.h b/include/linux/key.h
index 51bce2950de4..d573e820a23d 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -82,6 +82,12 @@ struct key_owner;
 struct keyring_list;
 struct keyring_name;
 
+struct keyring_index_key {
+	struct key_type		*type;
+	const char		*description;
+	size_t			desc_len;
+};
+
 /*****************************************************************************/
 /*
  * key reference with possession attribute handling
@@ -129,7 +135,6 @@ struct key {
 		struct list_head graveyard_link;
 		struct rb_node	serial_node;
 	};
-	struct key_type		*type;		/* type of key */
 	struct rw_semaphore	sem;		/* change vs change sem */
 	struct key_user		*user;		/* owner of this key */
 	void			*security;	/* security data for this key */
@@ -163,12 +168,18 @@ struct key {
 #define KEY_FLAG_ROOT_CAN_CLEAR	6	/* set if key can be cleared by root without permission */
 #define KEY_FLAG_INVALIDATED	7	/* set if key has been invalidated */
 
-	/* the description string
-	 * - this is used to match a key against search criteria
-	 * - this should be a printable string
+	/* the key type and key description string
+	 * - the desc is used to match a key against search criteria
+	 * - it should be a printable string
 	 * - eg: for krb5 AFS, this might be "afs@REDHAT.COM"
 	 */
-	char			*description;
+	union {
+		struct keyring_index_key index_key;
+		struct {
+			struct key_type	*type;		/* type of key */
+			char		*description;
+		};
+	};
 
 	/* type specific data
 	 * - this is used by the keyring type to index the name
diff --git a/security/keys/internal.h b/security/keys/internal.h
index 490aef5ba34b..77441dd1f9d4 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -89,19 +89,17 @@ extern struct key_type *key_type_lookup(const char *type);
 extern void key_type_put(struct key_type *ktype);
 
 extern int __key_link_begin(struct key *keyring,
-			    const struct key_type *type,
-			    const char *description,
+			    const struct keyring_index_key *index_key,
 			    unsigned long *_prealloc);
 extern int __key_link_check_live_key(struct key *keyring, struct key *key);
 extern void __key_link(struct key *keyring, struct key *key,
 		       unsigned long *_prealloc);
 extern void __key_link_end(struct key *keyring,
-			   struct key_type *type,
+			   const struct keyring_index_key *index_key,
 			   unsigned long prealloc);
 
 extern key_ref_t __keyring_search_one(key_ref_t keyring_ref,
-				      const struct key_type *type,
-				      const char *description,
+				      const struct keyring_index_key *index_key,
 				      key_perm_t perm);
 
 extern struct key *keyring_search_instkey(struct key *keyring,
diff --git a/security/keys/key.c b/security/keys/key.c
index 8fb7c7bd4657..7e6bc396bb23 100644
--- a/security/keys/key.c
+++ b/security/keys/key.c
@@ -242,8 +242,8 @@ struct key *key_alloc(struct key_type *type, const char *desc,
 		}
 	}
 
-	desclen = strlen(desc) + 1;
-	quotalen = desclen + type->def_datalen;
+	desclen = strlen(desc);
+	quotalen = desclen + 1 + type->def_datalen;
 
 	/* get hold of the key tracking for this user */
 	user = key_user_lookup(uid);
@@ -277,7 +277,8 @@ struct key *key_alloc(struct key_type *type, const char *desc,
 		goto no_memory_2;
 
 	if (desc) {
-		key->description = kmemdup(desc, desclen, GFP_KERNEL);
+		key->index_key.desc_len = desclen;
+		key->index_key.description = kmemdup(desc, desclen + 1, GFP_KERNEL);
 		if (!key->description)
 			goto no_memory_3;
 	}
@@ -285,7 +286,7 @@ struct key *key_alloc(struct key_type *type, const char *desc,
 	atomic_set(&key->usage, 1);
 	init_rwsem(&key->sem);
 	lockdep_set_class(&key->sem, &type->lock_class);
-	key->type = type;
+	key->index_key.type = type;
 	key->user = user;
 	key->quotalen = quotalen;
 	key->datalen = type->def_datalen;
@@ -489,8 +490,7 @@ int key_instantiate_and_link(struct key *key,
 	}
 
 	if (keyring) {
-		ret = __key_link_begin(keyring, key->type, key->description,
-				       &prealloc);
+		ret = __key_link_begin(keyring, &key->index_key, &prealloc);
 		if (ret < 0)
 			goto error_free_preparse;
 	}
@@ -499,7 +499,7 @@ int key_instantiate_and_link(struct key *key,
 					 &prealloc);
 
 	if (keyring)
-		__key_link_end(keyring, key->type, prealloc);
+		__key_link_end(keyring, &key->index_key, prealloc);
 
 error_free_preparse:
 	if (key->type->preparse)
@@ -548,8 +548,7 @@ int key_reject_and_link(struct key *key,
 	ret = -EBUSY;
 
 	if (keyring)
-		link_ret = __key_link_begin(keyring, key->type,
-					    key->description, &prealloc);
+		link_ret = __key_link_begin(keyring, &key->index_key, &prealloc);
 
 	mutex_lock(&key_construction_mutex);
 
@@ -581,7 +580,7 @@ int key_reject_and_link(struct key *key,
 	mutex_unlock(&key_construction_mutex);
 
 	if (keyring)
-		__key_link_end(keyring, key->type, prealloc);
+		__key_link_end(keyring, &key->index_key, prealloc);
 
 	/* wake up anyone waiting for a key to be constructed */
 	if (awaken)
@@ -780,25 +779,27 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref,
 			       key_perm_t perm,
 			       unsigned long flags)
 {
-	unsigned long prealloc;
+	struct keyring_index_key index_key = {
+		.description	= description,
+	};
 	struct key_preparsed_payload prep;
 	const struct cred *cred = current_cred();
-	struct key_type *ktype;
+	unsigned long prealloc;
 	struct key *keyring, *key = NULL;
 	key_ref_t key_ref;
 	int ret;
 
 	/* look up the key type to see if it's one of the registered kernel
 	 * types */
-	ktype = key_type_lookup(type);
-	if (IS_ERR(ktype)) {
+	index_key.type = key_type_lookup(type);
+	if (IS_ERR(index_key.type)) {
 		key_ref = ERR_PTR(-ENODEV);
 		goto error;
 	}
 
 	key_ref = ERR_PTR(-EINVAL);
-	if (!ktype->match || !ktype->instantiate ||
-	    (!description && !ktype->preparse))
+	if (!index_key.type->match || !index_key.type->instantiate ||
+	    (!index_key.description && !index_key.type->preparse))
 		goto error_put_type;
 
 	keyring = key_ref_to_ptr(keyring_ref);
@@ -812,21 +813,22 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref,
 	memset(&prep, 0, sizeof(prep));
 	prep.data = payload;
 	prep.datalen = plen;
-	prep.quotalen = ktype->def_datalen;
-	if (ktype->preparse) {
-		ret = ktype->preparse(&prep);
+	prep.quotalen = index_key.type->def_datalen;
+	if (index_key.type->preparse) {
+		ret = index_key.type->preparse(&prep);
 		if (ret < 0) {
 			key_ref = ERR_PTR(ret);
 			goto error_put_type;
 		}
-		if (!description)
-			description = prep.description;
+		if (!index_key.description)
+			index_key.description = prep.description;
 		key_ref = ERR_PTR(-EINVAL);
-		if (!description)
+		if (!index_key.description)
 			goto error_free_prep;
 	}
+	index_key.desc_len = strlen(index_key.description);
 
-	ret = __key_link_begin(keyring, ktype, description, &prealloc);
+	ret = __key_link_begin(keyring, &index_key, &prealloc);
 	if (ret < 0) {
 		key_ref = ERR_PTR(ret);
 		goto error_free_prep;
@@ -844,9 +846,8 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref,
 	 * key of the same type and description in the destination keyring and
 	 * update that instead if possible
 	 */
-	if (ktype->update) {
-		key_ref = __keyring_search_one(keyring_ref, ktype, description,
-					       0);
+	if (index_key.type->update) {
+		key_ref = __keyring_search_one(keyring_ref, &index_key, 0);
 		if (!IS_ERR(key_ref))
 			goto found_matching_key;
 	}
@@ -856,16 +857,17 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref,
 		perm = KEY_POS_VIEW | KEY_POS_SEARCH | KEY_POS_LINK | KEY_POS_SETATTR;
 		perm |= KEY_USR_VIEW;
 
-		if (ktype->read)
+		if (index_key.type->read)
 			perm |= KEY_POS_READ;
 
-		if (ktype == &key_type_keyring || ktype->update)
+		if (index_key.type == &key_type_keyring ||
+		    index_key.type->update)
 			perm |= KEY_POS_WRITE;
 	}
 
 	/* allocate a new key */
-	key = key_alloc(ktype, description, cred->fsuid, cred->fsgid, cred,
-			perm, flags);
+	key = key_alloc(index_key.type, index_key.description,
+			cred->fsuid, cred->fsgid, cred, perm, flags);
 	if (IS_ERR(key)) {
 		key_ref = ERR_CAST(key);
 		goto error_link_end;
@@ -882,12 +884,12 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref,
 	key_ref = make_key_ref(key, is_key_possessed(keyring_ref));
 
 error_link_end:
-	__key_link_end(keyring, ktype, prealloc);
+	__key_link_end(keyring, &index_key, prealloc);
 error_free_prep:
-	if (ktype->preparse)
-		ktype->free_preparse(&prep);
+	if (index_key.type->preparse)
+		index_key.type->free_preparse(&prep);
 error_put_type:
-	key_type_put(ktype);
+	key_type_put(index_key.type);
 error:
 	return key_ref;
 
@@ -895,7 +897,7 @@ error:
 	/* we found a matching key, so we're going to try to update it
 	 * - we can drop the locks first as we have the key pinned
 	 */
-	__key_link_end(keyring, ktype, prealloc);
+	__key_link_end(keyring, &index_key, prealloc);
 
 	key_ref = __key_update(key_ref, &prep);
 	goto error_free_prep;
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index f78406372ebe..c7f59f9dd7b6 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -538,8 +538,7 @@ EXPORT_SYMBOL(keyring_search);
  * to the returned key reference.
  */
 key_ref_t __keyring_search_one(key_ref_t keyring_ref,
-			       const struct key_type *ktype,
-			       const char *description,
+			       const struct keyring_index_key *index_key,
 			       key_perm_t perm)
 {
 	struct keyring_list *klist;
@@ -558,9 +557,9 @@ key_ref_t __keyring_search_one(key_ref_t keyring_ref,
 		smp_rmb();
 		for (loop = 0; loop < nkeys ; loop++) {
 			key = rcu_dereference(klist->keys[loop]);
-			if (key->type == ktype &&
+			if (key->type == index_key->type &&
 			    (!key->type->match ||
-			     key->type->match(key, description)) &&
+			     key->type->match(key, index_key->description)) &&
 			    key_permission(make_key_ref(key, possessed),
 					   perm) == 0 &&
 			    !(key->flags & ((1 << KEY_FLAG_INVALIDATED) |
@@ -747,8 +746,8 @@ static void keyring_unlink_rcu_disposal(struct rcu_head *rcu)
 /*
  * Preallocate memory so that a key can be linked into to a keyring.
  */
-int __key_link_begin(struct key *keyring, const struct key_type *type,
-		     const char *description, unsigned long *_prealloc)
+int __key_link_begin(struct key *keyring, const struct keyring_index_key *index_key,
+		     unsigned long *_prealloc)
 	__acquires(&keyring->sem)
 	__acquires(&keyring_serialise_link_sem)
 {
@@ -759,7 +758,8 @@ int __key_link_begin(struct key *keyring, const struct key_type *type,
 	size_t size;
 	int loop, lru, ret;
 
-	kenter("%d,%s,%s,", key_serial(keyring), type->name, description);
+	kenter("%d,%s,%s,",
+	       key_serial(keyring), index_key->type->name, index_key->description);
 
 	if (keyring->type != &key_type_keyring)
 		return -ENOTDIR;
@@ -772,7 +772,7 @@ int __key_link_begin(struct key *keyring, const struct key_type *type,
 
 	/* serialise link/link calls to prevent parallel calls causing a cycle
 	 * when linking two keyring in opposite orders */
-	if (type == &key_type_keyring)
+	if (index_key->type == &key_type_keyring)
 		down_write(&keyring_serialise_link_sem);
 
 	klist = rcu_dereference_locked_keyring(keyring);
@@ -784,8 +784,8 @@ int __key_link_begin(struct key *keyring, const struct key_type *type,
 		for (loop = klist->nkeys - 1; loop >= 0; loop--) {
 			struct key *key = rcu_deref_link_locked(klist, loop,
 								keyring);
-			if (key->type == type &&
-			    strcmp(key->description, description) == 0) {
+			if (key->type == index_key->type &&
+			    strcmp(key->description, index_key->description) == 0) {
 				/* Found a match - we'll replace the link with
 				 * one to the new key.  We record the slot
 				 * position.
@@ -865,7 +865,7 @@ error_quota:
 	key_payload_reserve(keyring,
 			    keyring->datalen - KEYQUOTA_LINK_BYTES);
 error_sem:
-	if (type == &key_type_keyring)
+	if (index_key->type == &key_type_keyring)
 		up_write(&keyring_serialise_link_sem);
 error_krsem:
 	up_write(&keyring->sem);
@@ -957,16 +957,17 @@ void __key_link(struct key *keyring, struct key *key,
  *
  * Must be called with __key_link_begin() having being called.
  */
-void __key_link_end(struct key *keyring, struct key_type *type,
+void __key_link_end(struct key *keyring,
+		    const struct keyring_index_key *index_key,
 		    unsigned long prealloc)
 	__releases(&keyring->sem)
 	__releases(&keyring_serialise_link_sem)
 {
-	BUG_ON(type == NULL);
-	BUG_ON(type->name == NULL);
-	kenter("%d,%s,%lx", keyring->serial, type->name, prealloc);
+	BUG_ON(index_key->type == NULL);
+	BUG_ON(index_key->type->name == NULL);
+	kenter("%d,%s,%lx", keyring->serial, index_key->type->name, prealloc);
 
-	if (type == &key_type_keyring)
+	if (index_key->type == &key_type_keyring)
 		up_write(&keyring_serialise_link_sem);
 
 	if (prealloc) {
@@ -1007,12 +1008,12 @@ int key_link(struct key *keyring, struct key *key)
 	key_check(keyring);
 	key_check(key);
 
-	ret = __key_link_begin(keyring, key->type, key->description, &prealloc);
+	ret = __key_link_begin(keyring, &key->index_key, &prealloc);
 	if (ret == 0) {
 		ret = __key_link_check_live_key(keyring, key);
 		if (ret == 0)
 			__key_link(keyring, key, &prealloc);
-		__key_link_end(keyring, key->type, prealloc);
+		__key_link_end(keyring, &key->index_key, prealloc);
 	}
 
 	return ret;
diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index 172115b38054..586cb79ee82d 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -352,6 +352,11 @@ static int construct_alloc_key(struct key_type *type,
 			       struct key_user *user,
 			       struct key **_key)
 {
+	const struct keyring_index_key index_key = {
+		.type		= type,
+		.description	= description,
+		.desc_len	= strlen(description),
+	};
 	const struct cred *cred = current_cred();
 	unsigned long prealloc;
 	struct key *key;
@@ -379,8 +384,7 @@ static int construct_alloc_key(struct key_type *type,
 	set_bit(KEY_FLAG_USER_CONSTRUCT, &key->flags);
 
 	if (dest_keyring) {
-		ret = __key_link_begin(dest_keyring, type, description,
-				       &prealloc);
+		ret = __key_link_begin(dest_keyring, &index_key, &prealloc);
 		if (ret < 0)
 			goto link_prealloc_failed;
 	}
@@ -400,7 +404,7 @@ static int construct_alloc_key(struct key_type *type,
 
 	mutex_unlock(&key_construction_mutex);
 	if (dest_keyring)
-		__key_link_end(dest_keyring, type, prealloc);
+		__key_link_end(dest_keyring, &index_key, prealloc);
 	mutex_unlock(&user->cons_lock);
 	*_key = key;
 	kleave(" = 0 [%d]", key_serial(key));
@@ -416,7 +420,7 @@ key_already_present:
 		ret = __key_link_check_live_key(dest_keyring, key);
 		if (ret == 0)
 			__key_link(dest_keyring, key, &prealloc);
-		__key_link_end(dest_keyring, type, prealloc);
+		__key_link_end(dest_keyring, &index_key, prealloc);
 		if (ret < 0)
 			goto link_check_failed;
 	}
-- 
cgit 


From 4bdf0bc300314141e5475e145acb8b5ad846f00d Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 24 Sep 2013 10:35:15 +0100
Subject: KEYS: Introduce a search context structure

Search functions pass around a bunch of arguments, each of which gets copied
with each call.  Introduce a search context structure to hold these.

Whilst we're at it, create a search flag that indicates whether the search
should be directly to the description or whether it should iterate through all
keys looking for a non-description match.

This will be useful when keyrings use a generic data struct with generic
routines to manage their content as the search terms can just be passed
through to the iterator callback function.

Also, for future use, the data to be supplied to the match function is
separated from the description pointer in the search context.  This makes it
clear which is being supplied.

Signed-off-by: David Howells <dhowells@redhat.com>
---
 include/linux/key-type.h         |   5 ++
 security/keys/internal.h         |  40 +++++++------
 security/keys/keyring.c          |  70 +++++++++++------------
 security/keys/proc.c             |  17 ++++--
 security/keys/process_keys.c     | 117 +++++++++++++++++++--------------------
 security/keys/request_key.c      |  56 +++++++++----------
 security/keys/request_key_auth.c |  14 +++--
 security/keys/user_defined.c     |  18 +++---
 8 files changed, 179 insertions(+), 158 deletions(-)

diff --git a/include/linux/key-type.h b/include/linux/key-type.h
index 518a53afb9ea..f58737bcb050 100644
--- a/include/linux/key-type.h
+++ b/include/linux/key-type.h
@@ -63,6 +63,11 @@ struct key_type {
 	 */
 	size_t def_datalen;
 
+	/* Default key search algorithm. */
+	unsigned def_lookup_type;
+#define KEYRING_SEARCH_LOOKUP_DIRECT	0x0000	/* Direct lookup by description. */
+#define KEYRING_SEARCH_LOOKUP_ITERATE	0x0001	/* Iterative search. */
+
 	/* vet a description */
 	int (*vet_description)(const char *description);
 
diff --git a/security/keys/internal.h b/security/keys/internal.h
index 77441dd1f9d4..f4bf938b68b4 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -107,23 +107,31 @@ extern struct key *keyring_search_instkey(struct key *keyring,
 
 typedef int (*key_match_func_t)(const struct key *, const void *);
 
+struct keyring_search_context {
+	struct keyring_index_key index_key;
+	const struct cred	*cred;
+	key_match_func_t	match;
+	const void		*match_data;
+	unsigned		flags;
+#define KEYRING_SEARCH_LOOKUP_TYPE	0x0001	/* [as type->def_lookup_type] */
+#define KEYRING_SEARCH_NO_STATE_CHECK	0x0002	/* Skip state checks */
+#define KEYRING_SEARCH_DO_STATE_CHECK	0x0004	/* Override NO_STATE_CHECK */
+#define KEYRING_SEARCH_NO_UPDATE_TIME	0x0008	/* Don't update times */
+#define KEYRING_SEARCH_NO_CHECK_PERM	0x0010	/* Don't check permissions */
+#define KEYRING_SEARCH_DETECT_TOO_DEEP	0x0020	/* Give an error on excessive depth */
+
+	/* Internal stuff */
+	int			skipped_ret;
+	bool			possessed;
+	key_ref_t		result;
+	struct timespec		now;
+};
+
 extern key_ref_t keyring_search_aux(key_ref_t keyring_ref,
-				    const struct cred *cred,
-				    struct key_type *type,
-				    const void *description,
-				    key_match_func_t match,
-				    bool no_state_check);
-
-extern key_ref_t search_my_process_keyrings(struct key_type *type,
-					    const void *description,
-					    key_match_func_t match,
-					    bool no_state_check,
-					    const struct cred *cred);
-extern key_ref_t search_process_keyrings(struct key_type *type,
-					 const void *description,
-					 key_match_func_t match,
-					 bool no_state_check,
-					 const struct cred *cred);
+				    struct keyring_search_context *ctx);
+
+extern key_ref_t search_my_process_keyrings(struct keyring_search_context *ctx);
+extern key_ref_t search_process_keyrings(struct keyring_search_context *ctx);
 
 extern struct key *find_keyring_by_name(const char *name, bool skip_perm_check);
 
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index c7f59f9dd7b6..b42f2d4f7f83 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -280,11 +280,7 @@ EXPORT_SYMBOL(keyring_alloc);
 /**
  * keyring_search_aux - Search a keyring tree for a key matching some criteria
  * @keyring_ref: A pointer to the keyring with possession indicator.
- * @cred: The credentials to use for permissions checks.
- * @type: The type of key to search for.
- * @description: Parameter for @match.
- * @match: Function to rule on whether or not a key is the one required.
- * @no_state_check: Don't check if a matching key is bad
+ * @ctx: The keyring search context.
  *
  * Search the supplied keyring tree for a key that matches the criteria given.
  * The root keyring and any linked keyrings must grant Search permission to the
@@ -314,11 +310,7 @@ EXPORT_SYMBOL(keyring_alloc);
  * @keyring_ref is propagated to the returned key reference.
  */
 key_ref_t keyring_search_aux(key_ref_t keyring_ref,
-			     const struct cred *cred,
-			     struct key_type *type,
-			     const void *description,
-			     key_match_func_t match,
-			     bool no_state_check)
+			     struct keyring_search_context *ctx)
 {
 	struct {
 		/* Need a separate keylist pointer for RCU purposes */
@@ -328,20 +320,18 @@ key_ref_t keyring_search_aux(key_ref_t keyring_ref,
 	} stack[KEYRING_SEARCH_MAX_DEPTH];
 
 	struct keyring_list *keylist;
-	struct timespec now;
 	unsigned long kflags;
 	struct key *keyring, *key;
 	key_ref_t key_ref;
-	bool possessed;
 	long err;
 	int sp, nkeys, kix;
 
 	keyring = key_ref_to_ptr(keyring_ref);
-	possessed = is_key_possessed(keyring_ref);
+	ctx->possessed = is_key_possessed(keyring_ref);
 	key_check(keyring);
 
 	/* top keyring must have search permission to begin the search */
-	err = key_task_permission(keyring_ref, cred, KEY_SEARCH);
+	err = key_task_permission(keyring_ref, ctx->cred, KEY_SEARCH);
 	if (err < 0) {
 		key_ref = ERR_PTR(err);
 		goto error;
@@ -353,7 +343,7 @@ key_ref_t keyring_search_aux(key_ref_t keyring_ref,
 
 	rcu_read_lock();
 
-	now = current_kernel_time();
+	ctx->now = current_kernel_time();
 	err = -EAGAIN;
 	sp = 0;
 
@@ -361,16 +351,17 @@ key_ref_t keyring_search_aux(key_ref_t keyring_ref,
 	 * are looking for */
 	key_ref = ERR_PTR(-EAGAIN);
 	kflags = keyring->flags;
-	if (keyring->type == type && match(keyring, description)) {
+	if (keyring->type == ctx->index_key.type &&
+	    ctx->match(keyring, ctx->match_data)) {
 		key = keyring;
-		if (no_state_check)
+		if (ctx->flags & KEYRING_SEARCH_NO_STATE_CHECK)
 			goto found;
 
 		/* check it isn't negative and hasn't expired or been
 		 * revoked */
 		if (kflags & (1 << KEY_FLAG_REVOKED))
 			goto error_2;
-		if (key->expiry && now.tv_sec >= key->expiry)
+		if (key->expiry && ctx->now.tv_sec >= key->expiry)
 			goto error_2;
 		key_ref = ERR_PTR(key->type_data.reject_error);
 		if (kflags & (1 << KEY_FLAG_NEGATIVE))
@@ -384,7 +375,7 @@ key_ref_t keyring_search_aux(key_ref_t keyring_ref,
 	if (kflags & ((1 << KEY_FLAG_INVALIDATED) |
 		      (1 << KEY_FLAG_REVOKED) |
 		      (1 << KEY_FLAG_NEGATIVE)) ||
-	    (keyring->expiry && now.tv_sec >= keyring->expiry))
+	    (keyring->expiry && ctx->now.tv_sec >= keyring->expiry))
 		goto error_2;
 
 	/* start processing a new keyring */
@@ -406,29 +397,29 @@ descend:
 		kflags = key->flags;
 
 		/* ignore keys not of this type */
-		if (key->type != type)
+		if (key->type != ctx->index_key.type)
 			continue;
 
 		/* skip invalidated, revoked and expired keys */
-		if (!no_state_check) {
+		if (!(ctx->flags & KEYRING_SEARCH_NO_STATE_CHECK)) {
 			if (kflags & ((1 << KEY_FLAG_INVALIDATED) |
 				      (1 << KEY_FLAG_REVOKED)))
 				continue;
 
-			if (key->expiry && now.tv_sec >= key->expiry)
+			if (key->expiry && ctx->now.tv_sec >= key->expiry)
 				continue;
 		}
 
 		/* keys that don't match */
-		if (!match(key, description))
+		if (!ctx->match(key, ctx->match_data))
 			continue;
 
 		/* key must have search permissions */
-		if (key_task_permission(make_key_ref(key, possessed),
-					cred, KEY_SEARCH) < 0)
+		if (key_task_permission(make_key_ref(key, ctx->possessed),
+					ctx->cred, KEY_SEARCH) < 0)
 			continue;
 
-		if (no_state_check)
+		if (ctx->flags & KEYRING_SEARCH_NO_STATE_CHECK)
 			goto found;
 
 		/* we set a different error code if we pass a negative key */
@@ -456,8 +447,8 @@ ascend:
 		if (sp >= KEYRING_SEARCH_MAX_DEPTH)
 			continue;
 
-		if (key_task_permission(make_key_ref(key, possessed),
-					cred, KEY_SEARCH) < 0)
+		if (key_task_permission(make_key_ref(key, ctx->possessed),
+					ctx->cred, KEY_SEARCH) < 0)
 			continue;
 
 		/* stack the current position */
@@ -489,12 +480,12 @@ not_this_keyring:
 	/* we found a viable match */
 found:
 	atomic_inc(&key->usage);
-	key->last_used_at = now.tv_sec;
-	keyring->last_used_at = now.tv_sec;
+	key->last_used_at = ctx->now.tv_sec;
+	keyring->last_used_at = ctx->now.tv_sec;
 	while (sp > 0)
-		stack[--sp].keyring->last_used_at = now.tv_sec;
+		stack[--sp].keyring->last_used_at = ctx->now.tv_sec;
 	key_check(key);
-	key_ref = make_key_ref(key, possessed);
+	key_ref = make_key_ref(key, ctx->possessed);
 error_2:
 	rcu_read_unlock();
 error:
@@ -514,11 +505,20 @@ key_ref_t keyring_search(key_ref_t keyring,
 			 struct key_type *type,
 			 const char *description)
 {
-	if (!type->match)
+	struct keyring_search_context ctx = {
+		.index_key.type		= type,
+		.index_key.description	= description,
+		.cred			= current_cred(),
+		.match			= type->match,
+		.match_data		= description,
+		.flags			= (type->def_lookup_type |
+					   KEYRING_SEARCH_DO_STATE_CHECK),
+	};
+
+	if (!ctx.match)
 		return ERR_PTR(-ENOKEY);
 
-	return keyring_search_aux(keyring, current->cred,
-				  type, description, type->match, false);
+	return keyring_search_aux(keyring, &ctx);
 }
 EXPORT_SYMBOL(keyring_search);
 
diff --git a/security/keys/proc.c b/security/keys/proc.c
index 217b6855e815..88e9a466940f 100644
--- a/security/keys/proc.c
+++ b/security/keys/proc.c
@@ -182,7 +182,6 @@ static void proc_keys_stop(struct seq_file *p, void *v)
 
 static int proc_keys_show(struct seq_file *m, void *v)
 {
-	const struct cred *cred = current_cred();
 	struct rb_node *_p = v;
 	struct key *key = rb_entry(_p, struct key, serial_node);
 	struct timespec now;
@@ -191,15 +190,23 @@ static int proc_keys_show(struct seq_file *m, void *v)
 	char xbuf[12];
 	int rc;
 
+	struct keyring_search_context ctx = {
+		.index_key.type		= key->type,
+		.index_key.description	= key->description,
+		.cred			= current_cred(),
+		.match			= lookup_user_key_possessed,
+		.match_data		= key,
+		.flags			= (KEYRING_SEARCH_NO_STATE_CHECK |
+					   KEYRING_SEARCH_LOOKUP_DIRECT),
+	};
+
 	key_ref = make_key_ref(key, 0);
 
 	/* determine if the key is possessed by this process (a test we can
 	 * skip if the key does not indicate the possessor can view it
 	 */
 	if (key->perm & KEY_POS_VIEW) {
-		skey_ref = search_my_process_keyrings(key->type, key,
-						      lookup_user_key_possessed,
-						      true, cred);
+		skey_ref = search_my_process_keyrings(&ctx);
 		if (!IS_ERR(skey_ref)) {
 			key_ref_put(skey_ref);
 			key_ref = make_key_ref(key, 1);
@@ -211,7 +218,7 @@ static int proc_keys_show(struct seq_file *m, void *v)
 	 * - the caller holds a spinlock, and thus the RCU read lock, making our
 	 *   access to __current_cred() safe
 	 */
-	rc = key_task_permission(key_ref, cred, KEY_VIEW);
+	rc = key_task_permission(key_ref, ctx.cred, KEY_VIEW);
 	if (rc < 0)
 		return 0;
 
diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
index a3410d605849..e68a3e0e7aa0 100644
--- a/security/keys/process_keys.c
+++ b/security/keys/process_keys.c
@@ -319,11 +319,7 @@ void key_fsgid_changed(struct task_struct *tsk)
  * In the case of a successful return, the possession attribute is set on the
  * returned key reference.
  */
-key_ref_t search_my_process_keyrings(struct key_type *type,
-				     const void *description,
-				     key_match_func_t match,
-				     bool no_state_check,
-				     const struct cred *cred)
+key_ref_t search_my_process_keyrings(struct keyring_search_context *ctx)
 {
 	key_ref_t key_ref, ret, err;
 
@@ -339,10 +335,9 @@ key_ref_t search_my_process_keyrings(struct key_type *type,
 	err = ERR_PTR(-EAGAIN);
 
 	/* search the thread keyring first */
-	if (cred->thread_keyring) {
+	if (ctx->cred->thread_keyring) {
 		key_ref = keyring_search_aux(
-			make_key_ref(cred->thread_keyring, 1),
-			cred, type, description, match, no_state_check);
+			make_key_ref(ctx->cred->thread_keyring, 1), ctx);
 		if (!IS_ERR(key_ref))
 			goto found;
 
@@ -358,10 +353,9 @@ key_ref_t search_my_process_keyrings(struct key_type *type,
 	}
 
 	/* search the process keyring second */
-	if (cred->process_keyring) {
+	if (ctx->cred->process_keyring) {
 		key_ref = keyring_search_aux(
-			make_key_ref(cred->process_keyring, 1),
-			cred, type, description, match, no_state_check);
+			make_key_ref(ctx->cred->process_keyring, 1), ctx);
 		if (!IS_ERR(key_ref))
 			goto found;
 
@@ -379,11 +373,11 @@ key_ref_t search_my_process_keyrings(struct key_type *type,
 	}
 
 	/* search the session keyring */
-	if (cred->session_keyring) {
+	if (ctx->cred->session_keyring) {
 		rcu_read_lock();
 		key_ref = keyring_search_aux(
-			make_key_ref(rcu_dereference(cred->session_keyring), 1),
-			cred, type, description, match, no_state_check);
+			make_key_ref(rcu_dereference(ctx->cred->session_keyring), 1),
+			ctx);
 		rcu_read_unlock();
 
 		if (!IS_ERR(key_ref))
@@ -402,10 +396,10 @@ key_ref_t search_my_process_keyrings(struct key_type *type,
 		}
 	}
 	/* or search the user-session keyring */
-	else if (cred->user->session_keyring) {
+	else if (ctx->cred->user->session_keyring) {
 		key_ref = keyring_search_aux(
-			make_key_ref(cred->user->session_keyring, 1),
-			cred, type, description, match, no_state_check);
+			make_key_ref(ctx->cred->user->session_keyring, 1),
+			ctx);
 		if (!IS_ERR(key_ref))
 			goto found;
 
@@ -437,19 +431,14 @@ found:
  *
  * Return same as search_my_process_keyrings().
  */
-key_ref_t search_process_keyrings(struct key_type *type,
-				  const void *description,
-				  key_match_func_t match,
-				  bool no_state_check,
-				  const struct cred *cred)
+key_ref_t search_process_keyrings(struct keyring_search_context *ctx)
 {
 	struct request_key_auth *rka;
 	key_ref_t key_ref, ret = ERR_PTR(-EACCES), err;
 
 	might_sleep();
 
-	key_ref = search_my_process_keyrings(type, description, match,
-					     no_state_check, cred);
+	key_ref = search_my_process_keyrings(ctx);
 	if (!IS_ERR(key_ref))
 		goto found;
 	err = key_ref;
@@ -458,19 +447,21 @@ key_ref_t search_process_keyrings(struct key_type *type,
 	 * search the keyrings of the process mentioned there
 	 * - we don't permit access to request_key auth keys via this method
 	 */
-	if (cred->request_key_auth &&
-	    cred == current_cred() &&
-	    type != &key_type_request_key_auth
+	if (ctx->cred->request_key_auth &&
+	    ctx->cred == current_cred() &&
+	    ctx->index_key.type != &key_type_request_key_auth
 	    ) {
+		const struct cred *cred = ctx->cred;
+
 		/* defend against the auth key being revoked */
 		down_read(&cred->request_key_auth->sem);
 
-		if (key_validate(cred->request_key_auth) == 0) {
-			rka = cred->request_key_auth->payload.data;
+		if (key_validate(ctx->cred->request_key_auth) == 0) {
+			rka = ctx->cred->request_key_auth->payload.data;
 
-			key_ref = search_process_keyrings(type, description,
-							  match, no_state_check,
-							  rka->cred);
+			ctx->cred = rka->cred;
+			key_ref = search_process_keyrings(ctx);
+			ctx->cred = cred;
 
 			up_read(&cred->request_key_auth->sem);
 
@@ -524,19 +515,23 @@ int lookup_user_key_possessed(const struct key *key, const void *target)
 key_ref_t lookup_user_key(key_serial_t id, unsigned long lflags,
 			  key_perm_t perm)
 {
+	struct keyring_search_context ctx = {
+		.match	= lookup_user_key_possessed,
+		.flags	= (KEYRING_SEARCH_NO_STATE_CHECK |
+			   KEYRING_SEARCH_LOOKUP_DIRECT),
+	};
 	struct request_key_auth *rka;
-	const struct cred *cred;
 	struct key *key;
 	key_ref_t key_ref, skey_ref;
 	int ret;
 
 try_again:
-	cred = get_current_cred();
+	ctx.cred = get_current_cred();
 	key_ref = ERR_PTR(-ENOKEY);
 
 	switch (id) {
 	case KEY_SPEC_THREAD_KEYRING:
-		if (!cred->thread_keyring) {
+		if (!ctx.cred->thread_keyring) {
 			if (!(lflags & KEY_LOOKUP_CREATE))
 				goto error;
 
@@ -548,13 +543,13 @@ try_again:
 			goto reget_creds;
 		}
 
-		key = cred->thread_keyring;
+		key = ctx.cred->thread_keyring;
 		atomic_inc(&key->usage);
 		key_ref = make_key_ref(key, 1);
 		break;
 
 	case KEY_SPEC_PROCESS_KEYRING:
-		if (!cred->process_keyring) {
+		if (!ctx.cred->process_keyring) {
 			if (!(lflags & KEY_LOOKUP_CREATE))
 				goto error;
 
@@ -566,13 +561,13 @@ try_again:
 			goto reget_creds;
 		}
 
-		key = cred->process_keyring;
+		key = ctx.cred->process_keyring;
 		atomic_inc(&key->usage);
 		key_ref = make_key_ref(key, 1);
 		break;
 
 	case KEY_SPEC_SESSION_KEYRING:
-		if (!cred->session_keyring) {
+		if (!ctx.cred->session_keyring) {
 			/* always install a session keyring upon access if one
 			 * doesn't exist yet */
 			ret = install_user_keyrings();
@@ -582,13 +577,13 @@ try_again:
 				ret = join_session_keyring(NULL);
 			else
 				ret = install_session_keyring(
-					cred->user->session_keyring);
+					ctx.cred->user->session_keyring);
 
 			if (ret < 0)
 				goto error;
 			goto reget_creds;
-		} else if (cred->session_keyring ==
-			   cred->user->session_keyring &&
+		} else if (ctx.cred->session_keyring ==
+			   ctx.cred->user->session_keyring &&
 			   lflags & KEY_LOOKUP_CREATE) {
 			ret = join_session_keyring(NULL);
 			if (ret < 0)
@@ -597,32 +592,32 @@ try_again:
 		}
 
 		rcu_read_lock();
-		key = rcu_dereference(cred->session_keyring);
+		key = rcu_dereference(ctx.cred->session_keyring);
 		atomic_inc(&key->usage);
 		rcu_read_unlock();
 		key_ref = make_key_ref(key, 1);
 		break;
 
 	case KEY_SPEC_USER_KEYRING:
-		if (!cred->user->uid_keyring) {
+		if (!ctx.cred->user->uid_keyring) {
 			ret = install_user_keyrings();
 			if (ret < 0)
 				goto error;
 		}
 
-		key = cred->user->uid_keyring;
+		key = ctx.cred->user->uid_keyring;
 		atomic_inc(&key->usage);
 		key_ref = make_key_ref(key, 1);
 		break;
 
 	case KEY_SPEC_USER_SESSION_KEYRING:
-		if (!cred->user->session_keyring) {
+		if (!ctx.cred->user->session_keyring) {
 			ret = install_user_keyrings();
 			if (ret < 0)
 				goto error;
 		}
 
-		key = cred->user->session_keyring;
+		key = ctx.cred->user->session_keyring;
 		atomic_inc(&key->usage);
 		key_ref = make_key_ref(key, 1);
 		break;
@@ -633,7 +628,7 @@ try_again:
 		goto error;
 
 	case KEY_SPEC_REQKEY_AUTH_KEY:
-		key = cred->request_key_auth;
+		key = ctx.cred->request_key_auth;
 		if (!key)
 			goto error;
 
@@ -642,20 +637,20 @@ try_again:
 		break;
 
 	case KEY_SPEC_REQUESTOR_KEYRING:
-		if (!cred->request_key_auth)
+		if (!ctx.cred->request_key_auth)
 			goto error;
 
-		down_read(&cred->request_key_auth->sem);
+		down_read(&ctx.cred->request_key_auth->sem);
 		if (test_bit(KEY_FLAG_REVOKED,
-			     &cred->request_key_auth->flags)) {
+			     &ctx.cred->request_key_auth->flags)) {
 			key_ref = ERR_PTR(-EKEYREVOKED);
 			key = NULL;
 		} else {
-			rka = cred->request_key_auth->payload.data;
+			rka = ctx.cred->request_key_auth->payload.data;
 			key = rka->dest_keyring;
 			atomic_inc(&key->usage);
 		}
-		up_read(&cred->request_key_auth->sem);
+		up_read(&ctx.cred->request_key_auth->sem);
 		if (!key)
 			goto error;
 		key_ref = make_key_ref(key, 1);
@@ -675,9 +670,13 @@ try_again:
 		key_ref = make_key_ref(key, 0);
 
 		/* check to see if we possess the key */
-		skey_ref = search_process_keyrings(key->type, key,
-						   lookup_user_key_possessed,
-						   true, cred);
+		ctx.index_key.type		= key->type;
+		ctx.index_key.description	= key->description;
+		ctx.index_key.desc_len		= strlen(key->description);
+		ctx.match_data			= key;
+		kdebug("check possessed");
+		skey_ref = search_process_keyrings(&ctx);
+		kdebug("possessed=%p", skey_ref);
 
 		if (!IS_ERR(skey_ref)) {
 			key_put(key);
@@ -717,14 +716,14 @@ try_again:
 		goto invalid_key;
 
 	/* check the permissions */
-	ret = key_task_permission(key_ref, cred, perm);
+	ret = key_task_permission(key_ref, ctx.cred, perm);
 	if (ret < 0)
 		goto invalid_key;
 
 	key->last_used_at = current_kernel_time().tv_sec;
 
 error:
-	put_cred(cred);
+	put_cred(ctx.cred);
 	return key_ref;
 
 invalid_key:
@@ -735,7 +734,7 @@ invalid_key:
 	/* if we attempted to install a keyring, then it may have caused new
 	 * creds to be installed */
 reget_creds:
-	put_cred(cred);
+	put_cred(ctx.cred);
 	goto try_again;
 }
 
diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index 586cb79ee82d..ab75df4745af 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -345,38 +345,34 @@ static void construct_get_dest_keyring(struct key **_dest_keyring)
  * May return a key that's already under construction instead if there was a
  * race between two thread calling request_key().
  */
-static int construct_alloc_key(struct key_type *type,
-			       const char *description,
+static int construct_alloc_key(struct keyring_search_context *ctx,
 			       struct key *dest_keyring,
 			       unsigned long flags,
 			       struct key_user *user,
 			       struct key **_key)
 {
-	const struct keyring_index_key index_key = {
-		.type		= type,
-		.description	= description,
-		.desc_len	= strlen(description),
-	};
-	const struct cred *cred = current_cred();
 	unsigned long prealloc;
 	struct key *key;
 	key_perm_t perm;
 	key_ref_t key_ref;
 	int ret;
 
-	kenter("%s,%s,,,", type->name, description);
+	kenter("%s,%s,,,",
+	       ctx->index_key.type->name, ctx->index_key.description);
 
 	*_key = NULL;
 	mutex_lock(&user->cons_lock);
 
 	perm = KEY_POS_VIEW | KEY_POS_SEARCH | KEY_POS_LINK | KEY_POS_SETATTR;
 	perm |= KEY_USR_VIEW;
-	if (type->read)
+	if (ctx->index_key.type->read)
 		perm |= KEY_POS_READ;
-	if (type == &key_type_keyring || type->update)
+	if (ctx->index_key.type == &key_type_keyring ||
+	    ctx->index_key.type->update)
 		perm |= KEY_POS_WRITE;
 
-	key = key_alloc(type, description, cred->fsuid, cred->fsgid, cred,
+	key = key_alloc(ctx->index_key.type, ctx->index_key.description,
+			ctx->cred->fsuid, ctx->cred->fsgid, ctx->cred,
 			perm, flags);
 	if (IS_ERR(key))
 		goto alloc_failed;
@@ -384,7 +380,7 @@ static int construct_alloc_key(struct key_type *type,
 	set_bit(KEY_FLAG_USER_CONSTRUCT, &key->flags);
 
 	if (dest_keyring) {
-		ret = __key_link_begin(dest_keyring, &index_key, &prealloc);
+		ret = __key_link_begin(dest_keyring, &ctx->index_key, &prealloc);
 		if (ret < 0)
 			goto link_prealloc_failed;
 	}
@@ -394,8 +390,7 @@ static int construct_alloc_key(struct key_type *type,
 	 * waited for locks */
 	mutex_lock(&key_construction_mutex);
 
-	key_ref = search_process_keyrings(type, description, type->match,
-					  false, cred);
+	key_ref = search_process_keyrings(ctx);
 	if (!IS_ERR(key_ref))
 		goto key_already_present;
 
@@ -404,7 +399,7 @@ static int construct_alloc_key(struct key_type *type,
 
 	mutex_unlock(&key_construction_mutex);
 	if (dest_keyring)
-		__key_link_end(dest_keyring, &index_key, prealloc);
+		__key_link_end(dest_keyring, &ctx->index_key, prealloc);
 	mutex_unlock(&user->cons_lock);
 	*_key = key;
 	kleave(" = 0 [%d]", key_serial(key));
@@ -420,7 +415,7 @@ key_already_present:
 		ret = __key_link_check_live_key(dest_keyring, key);
 		if (ret == 0)
 			__key_link(dest_keyring, key, &prealloc);
-		__key_link_end(dest_keyring, &index_key, prealloc);
+		__key_link_end(dest_keyring, &ctx->index_key, prealloc);
 		if (ret < 0)
 			goto link_check_failed;
 	}
@@ -449,8 +444,7 @@ alloc_failed:
 /*
  * Commence key construction.
  */
-static struct key *construct_key_and_link(struct key_type *type,
-					  const char *description,
+static struct key *construct_key_and_link(struct keyring_search_context *ctx,
 					  const char *callout_info,
 					  size_t callout_len,
 					  void *aux,
@@ -469,8 +463,7 @@ static struct key *construct_key_and_link(struct key_type *type,
 
 	construct_get_dest_keyring(&dest_keyring);
 
-	ret = construct_alloc_key(type, description, dest_keyring, flags, user,
-				  &key);
+	ret = construct_alloc_key(ctx, dest_keyring, flags, user, &key);
 	key_user_put(user);
 
 	if (ret == 0) {
@@ -534,18 +527,24 @@ struct key *request_key_and_link(struct key_type *type,
 				 struct key *dest_keyring,
 				 unsigned long flags)
 {
-	const struct cred *cred = current_cred();
+	struct keyring_search_context ctx = {
+		.index_key.type		= type,
+		.index_key.description	= description,
+		.cred			= current_cred(),
+		.match			= type->match,
+		.match_data		= description,
+		.flags			= KEYRING_SEARCH_LOOKUP_DIRECT,
+	};
 	struct key *key;
 	key_ref_t key_ref;
 	int ret;
 
 	kenter("%s,%s,%p,%zu,%p,%p,%lx",
-	       type->name, description, callout_info, callout_len, aux,
-	       dest_keyring, flags);
+	       ctx.index_key.type->name, ctx.index_key.description,
+	       callout_info, callout_len, aux, dest_keyring, flags);
 
 	/* search all the process keyrings for a key */
-	key_ref = search_process_keyrings(type, description, type->match,
-					  false, cred);
+	key_ref = search_process_keyrings(&ctx);
 
 	if (!IS_ERR(key_ref)) {
 		key = key_ref_to_ptr(key_ref);
@@ -568,9 +567,8 @@ struct key *request_key_and_link(struct key_type *type,
 		if (!callout_info)
 			goto error;
 
-		key = construct_key_and_link(type, description, callout_info,
-					     callout_len, aux, dest_keyring,
-					     flags);
+		key = construct_key_and_link(&ctx, callout_info, callout_len,
+					     aux, dest_keyring, flags);
 	}
 
 error:
diff --git a/security/keys/request_key_auth.c b/security/keys/request_key_auth.c
index 92077de555df..8d09852854ca 100644
--- a/security/keys/request_key_auth.c
+++ b/security/keys/request_key_auth.c
@@ -239,15 +239,17 @@ static int key_get_instantiation_authkey_match(const struct key *key,
  */
 struct key *key_get_instantiation_authkey(key_serial_t target_id)
 {
-	const struct cred *cred = current_cred();
+	struct keyring_search_context ctx = {
+		.index_key.type		= &key_type_request_key_auth,
+		.cred			= current_cred(),
+		.match			= key_get_instantiation_authkey_match,
+		.match_data		= (void *)(unsigned long)target_id,
+		.flags			= KEYRING_SEARCH_LOOKUP_DIRECT,
+	};
 	struct key *authkey;
 	key_ref_t authkey_ref;
 
-	authkey_ref = search_process_keyrings(
-		&key_type_request_key_auth,
-		(void *) (unsigned long) target_id,
-		key_get_instantiation_authkey_match,
-		false, cred);
+	authkey_ref = search_process_keyrings(&ctx);
 
 	if (IS_ERR(authkey_ref)) {
 		authkey = ERR_CAST(authkey_ref);
diff --git a/security/keys/user_defined.c b/security/keys/user_defined.c
index 55dc88939185..faa2caeb593f 100644
--- a/security/keys/user_defined.c
+++ b/security/keys/user_defined.c
@@ -25,14 +25,15 @@ static int logon_vet_description(const char *desc);
  * arbitrary blob of data as the payload
  */
 struct key_type key_type_user = {
-	.name		= "user",
-	.instantiate	= user_instantiate,
-	.update		= user_update,
-	.match		= user_match,
-	.revoke		= user_revoke,
-	.destroy	= user_destroy,
-	.describe	= user_describe,
-	.read		= user_read,
+	.name			= "user",
+	.def_lookup_type	= KEYRING_SEARCH_LOOKUP_DIRECT,
+	.instantiate		= user_instantiate,
+	.update			= user_update,
+	.match			= user_match,
+	.revoke			= user_revoke,
+	.destroy		= user_destroy,
+	.describe		= user_describe,
+	.read			= user_read,
 };
 
 EXPORT_SYMBOL_GPL(key_type_user);
@@ -45,6 +46,7 @@ EXPORT_SYMBOL_GPL(key_type_user);
  */
 struct key_type key_type_logon = {
 	.name			= "logon",
+	.def_lookup_type	= KEYRING_SEARCH_LOOKUP_DIRECT,
 	.instantiate		= user_instantiate,
 	.update			= user_update,
 	.match			= user_match,
-- 
cgit 


From d0a059cac6523b23ad7d743dec8783705aab1668 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 24 Sep 2013 10:35:16 +0100
Subject: KEYS: Search for auth-key by name rather than target key ID

Search for auth-key by name rather than by target key ID as, in a future
patch, we'll by searching directly by index key in preference to iteration
over all keys.

Signed-off-by: David Howells <dhowells@redhat.com>
---
 security/keys/request_key_auth.c | 21 +++++++--------------
 1 file changed, 7 insertions(+), 14 deletions(-)

diff --git a/security/keys/request_key_auth.c b/security/keys/request_key_auth.c
index 8d09852854ca..7495a93b4b90 100644
--- a/security/keys/request_key_auth.c
+++ b/security/keys/request_key_auth.c
@@ -18,6 +18,7 @@
 #include <linux/slab.h>
 #include <asm/uaccess.h>
 #include "internal.h"
+#include <keys/user-type.h>
 
 static int request_key_auth_instantiate(struct key *,
 					struct key_preparsed_payload *);
@@ -221,34 +222,26 @@ error_alloc:
 	return ERR_PTR(ret);
 }
 
-/*
- * See if an authorisation key is associated with a particular key.
- */
-static int key_get_instantiation_authkey_match(const struct key *key,
-					       const void *_id)
-{
-	struct request_key_auth *rka = key->payload.data;
-	key_serial_t id = (key_serial_t)(unsigned long) _id;
-
-	return rka->target_key->serial == id;
-}
-
 /*
  * Search the current process's keyrings for the authorisation key for
  * instantiation of a key.
  */
 struct key *key_get_instantiation_authkey(key_serial_t target_id)
 {
+	char description[16];
 	struct keyring_search_context ctx = {
 		.index_key.type		= &key_type_request_key_auth,
+		.index_key.description	= description,
 		.cred			= current_cred(),
-		.match			= key_get_instantiation_authkey_match,
-		.match_data		= (void *)(unsigned long)target_id,
+		.match			= user_match,
+		.match_data		= description,
 		.flags			= KEYRING_SEARCH_LOOKUP_DIRECT,
 	};
 	struct key *authkey;
 	key_ref_t authkey_ref;
 
+	sprintf(description, "%x", target_id);
+
 	authkey_ref = search_process_keyrings(&ctx);
 
 	if (IS_ERR(authkey_ref)) {
-- 
cgit 


From ccc3e6d9c9aea07a0b60b2b0bfc5b05a704b66d5 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 24 Sep 2013 10:35:16 +0100
Subject: KEYS: Define a __key_get() wrapper to use rather than atomic_inc()

Define a __key_get() wrapper to use rather than atomic_inc() on the key usage
count as this makes it easier to hook in refcount error debugging.

Signed-off-by: David Howells <dhowells@redhat.com>
---
 Documentation/security/keys.txt | 13 ++++++++-----
 include/linux/key.h             | 10 +++++++---
 security/keys/key.c             |  2 +-
 security/keys/keyring.c         |  6 +++---
 security/keys/process_keys.c    | 16 ++++++++--------
 5 files changed, 27 insertions(+), 20 deletions(-)

diff --git a/Documentation/security/keys.txt b/Documentation/security/keys.txt
index 9ede67084f0b..a4c33f1a7c6d 100644
--- a/Documentation/security/keys.txt
+++ b/Documentation/security/keys.txt
@@ -960,14 +960,17 @@ payload contents" for more information.
     the argument will not be parsed.
 
 
-(*) Extra references can be made to a key by calling the following function:
+(*) Extra references can be made to a key by calling one of the following
+    functions:
 
+	struct key *__key_get(struct key *key);
 	struct key *key_get(struct key *key);
 
-    These need to be disposed of by calling key_put() when they've been
-    finished with. The key pointer passed in will be returned. If the pointer
-    is NULL or CONFIG_KEYS is not set then the key will not be dereferenced and
-    no increment will take place.
+    Keys so references will need to be disposed of by calling key_put() when
+    they've been finished with.  The key pointer passed in will be returned.
+
+    In the case of key_get(), if the pointer is NULL or CONFIG_KEYS is not set
+    then the key will not be dereferenced and no increment will take place.
 
 
 (*) A key's serial number can be obtained by calling:
diff --git a/include/linux/key.h b/include/linux/key.h
index d573e820a23d..ef596c7af585 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -219,13 +219,17 @@ extern void key_revoke(struct key *key);
 extern void key_invalidate(struct key *key);
 extern void key_put(struct key *key);
 
-static inline struct key *key_get(struct key *key)
+static inline struct key *__key_get(struct key *key)
 {
-	if (key)
-		atomic_inc(&key->usage);
+	atomic_inc(&key->usage);
 	return key;
 }
 
+static inline struct key *key_get(struct key *key)
+{
+	return key ? __key_get(key) : key;
+}
+
 static inline void key_ref_put(key_ref_t key_ref)
 {
 	key_put(key_ref_to_ptr(key_ref));
diff --git a/security/keys/key.c b/security/keys/key.c
index 7e6bc396bb23..1e23cc288106 100644
--- a/security/keys/key.c
+++ b/security/keys/key.c
@@ -644,7 +644,7 @@ found:
 	/* this races with key_put(), but that doesn't matter since key_put()
 	 * doesn't actually change the key
 	 */
-	atomic_inc(&key->usage);
+	__key_get(key);
 
 error:
 	spin_unlock(&key_serial_lock);
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index b42f2d4f7f83..87eff32b53f4 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -479,7 +479,7 @@ not_this_keyring:
 
 	/* we found a viable match */
 found:
-	atomic_inc(&key->usage);
+	__key_get(key);
 	key->last_used_at = ctx->now.tv_sec;
 	keyring->last_used_at = ctx->now.tv_sec;
 	while (sp > 0)
@@ -573,7 +573,7 @@ key_ref_t __keyring_search_one(key_ref_t keyring_ref,
 	return ERR_PTR(-ENOKEY);
 
 found:
-	atomic_inc(&key->usage);
+	__key_get(key);
 	keyring->last_used_at = key->last_used_at =
 		current_kernel_time().tv_sec;
 	rcu_read_unlock();
@@ -909,7 +909,7 @@ void __key_link(struct key *keyring, struct key *key,
 
 	klist = rcu_dereference_locked_keyring(keyring);
 
-	atomic_inc(&key->usage);
+	__key_get(key);
 	keyring->last_used_at = key->last_used_at =
 		current_kernel_time().tv_sec;
 
diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
index e68a3e0e7aa0..68548ea6fe01 100644
--- a/security/keys/process_keys.c
+++ b/security/keys/process_keys.c
@@ -235,7 +235,7 @@ int install_session_keyring_to_cred(struct cred *cred, struct key *keyring)
 		if (IS_ERR(keyring))
 			return PTR_ERR(keyring);
 	} else {
-		atomic_inc(&keyring->usage);
+		__key_get(keyring);
 	}
 
 	/* install the keyring */
@@ -544,7 +544,7 @@ try_again:
 		}
 
 		key = ctx.cred->thread_keyring;
-		atomic_inc(&key->usage);
+		__key_get(key);
 		key_ref = make_key_ref(key, 1);
 		break;
 
@@ -562,7 +562,7 @@ try_again:
 		}
 
 		key = ctx.cred->process_keyring;
-		atomic_inc(&key->usage);
+		__key_get(key);
 		key_ref = make_key_ref(key, 1);
 		break;
 
@@ -593,7 +593,7 @@ try_again:
 
 		rcu_read_lock();
 		key = rcu_dereference(ctx.cred->session_keyring);
-		atomic_inc(&key->usage);
+		__key_get(key);
 		rcu_read_unlock();
 		key_ref = make_key_ref(key, 1);
 		break;
@@ -606,7 +606,7 @@ try_again:
 		}
 
 		key = ctx.cred->user->uid_keyring;
-		atomic_inc(&key->usage);
+		__key_get(key);
 		key_ref = make_key_ref(key, 1);
 		break;
 
@@ -618,7 +618,7 @@ try_again:
 		}
 
 		key = ctx.cred->user->session_keyring;
-		atomic_inc(&key->usage);
+		__key_get(key);
 		key_ref = make_key_ref(key, 1);
 		break;
 
@@ -632,7 +632,7 @@ try_again:
 		if (!key)
 			goto error;
 
-		atomic_inc(&key->usage);
+		__key_get(key);
 		key_ref = make_key_ref(key, 1);
 		break;
 
@@ -648,7 +648,7 @@ try_again:
 		} else {
 			rka = ctx.cred->request_key_auth->payload.data;
 			key = rka->dest_keyring;
-			atomic_inc(&key->usage);
+			__key_get(key);
 		}
 		up_read(&ctx.cred->request_key_auth->sem);
 		if (!key)
-- 
cgit 


From e57e8669f2ab8350d30f771dd2fdd5377f183db2 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 24 Sep 2013 10:35:17 +0100
Subject: KEYS: Drop the permissions argument from __keyring_search_one()

Drop the permissions argument from __keyring_search_one() as the only caller
passes 0 here - which causes all checks to be skipped.

Signed-off-by: David Howells <dhowells@redhat.com>
---
 security/keys/internal.h | 3 +--
 security/keys/key.c      | 2 +-
 security/keys/keyring.c  | 9 +++------
 3 files changed, 5 insertions(+), 9 deletions(-)

diff --git a/security/keys/internal.h b/security/keys/internal.h
index f4bf938b68b4..73950bf8f875 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -99,8 +99,7 @@ extern void __key_link_end(struct key *keyring,
 			   unsigned long prealloc);
 
 extern key_ref_t __keyring_search_one(key_ref_t keyring_ref,
-				      const struct keyring_index_key *index_key,
-				      key_perm_t perm);
+				      const struct keyring_index_key *index_key);
 
 extern struct key *keyring_search_instkey(struct key *keyring,
 					  key_serial_t target_id);
diff --git a/security/keys/key.c b/security/keys/key.c
index 1e23cc288106..7d716b82a61e 100644
--- a/security/keys/key.c
+++ b/security/keys/key.c
@@ -847,7 +847,7 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref,
 	 * update that instead if possible
 	 */
 	if (index_key.type->update) {
-		key_ref = __keyring_search_one(keyring_ref, &index_key, 0);
+		key_ref = __keyring_search_one(keyring_ref, &index_key);
 		if (!IS_ERR(key_ref))
 			goto found_matching_key;
 	}
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index 87eff32b53f4..eeef1a073db4 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -531,15 +531,14 @@ EXPORT_SYMBOL(keyring_search);
  * RCU is used to make it unnecessary to lock the keyring key list here.
  *
  * Returns a pointer to the found key with usage count incremented if
- * successful and returns -ENOKEY if not found.  Revoked keys and keys not
- * providing the requested permission are skipped over.
+ * successful and returns -ENOKEY if not found.  Revoked and invalidated keys
+ * are skipped over.
  *
  * If successful, the possession indicator is propagated from the keyring ref
  * to the returned key reference.
  */
 key_ref_t __keyring_search_one(key_ref_t keyring_ref,
-			       const struct keyring_index_key *index_key,
-			       key_perm_t perm)
+			       const struct keyring_index_key *index_key)
 {
 	struct keyring_list *klist;
 	struct key *keyring, *key;
@@ -560,8 +559,6 @@ key_ref_t __keyring_search_one(key_ref_t keyring_ref,
 			if (key->type == index_key->type &&
 			    (!key->type->match ||
 			     key->type->match(key, index_key->description)) &&
-			    key_permission(make_key_ref(key, possessed),
-					   perm) == 0 &&
 			    !(key->flags & ((1 << KEY_FLAG_INVALIDATED) |
 					    (1 << KEY_FLAG_REVOKED)))
 			    )
-- 
cgit 


From 3cb989501c2688cacbb7dc4b0d353faf838f53a1 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 24 Sep 2013 10:35:17 +0100
Subject: Add a generic associative array implementation.

Add a generic associative array implementation that can be used as the
container for keyrings, thereby massively increasing the capacity available
whilst also speeding up searching in keyrings that contain a lot of keys.

This may also be useful in FS-Cache for tracking cookies.

Documentation is added into Documentation/associative_array.txt

Some of the properties of the implementation are:

 (1) Objects are opaque pointers.  The implementation does not care where they
     point (if anywhere) or what they point to (if anything).

     [!] NOTE: Pointers to objects _must_ be zero in the two least significant
     	       bits.

 (2) Objects do not need to contain linkage blocks for use by the array.  This
     permits an object to be located in multiple arrays simultaneously.
     Rather, the array is made up of metadata blocks that point to objects.

 (3) Objects are labelled as being one of two types (the type is a bool value).
     This information is stored in the array, but has no consequence to the
     array itself or its algorithms.

 (4) Objects require index keys to locate them within the array.

 (5) Index keys must be unique.  Inserting an object with the same key as one
     already in the array will replace the old object.

 (6) Index keys can be of any length and can be of different lengths.

 (7) Index keys should encode the length early on, before any variation due to
     length is seen.

 (8) Index keys can include a hash to scatter objects throughout the array.

 (9) The array can iterated over.  The objects will not necessarily come out in
     key order.

(10) The array can be iterated whilst it is being modified, provided the RCU
     readlock is being held by the iterator.  Note, however, under these
     circumstances, some objects may be seen more than once.  If this is a
     problem, the iterator should lock against modification.  Objects will not
     be missed, however, unless deleted.

(11) Objects in the array can be looked up by means of their index key.

(12) Objects can be looked up whilst the array is being modified, provided the
     RCU readlock is being held by the thread doing the look up.

The implementation uses a tree of 16-pointer nodes internally that are indexed
on each level by nibbles from the index key.  To improve memory efficiency,
shortcuts can be emplaced to skip over what would otherwise be a series of
single-occupancy nodes.  Further, nodes pack leaf object pointers into spare
space in the node rather than making an extra branch until as such time an
object needs to be added to a full node.

Signed-off-by: David Howells <dhowells@redhat.com>
---
 Documentation/assoc_array.txt    |  574 +++++++++++++
 include/linux/assoc_array.h      |   92 ++
 include/linux/assoc_array_priv.h |  182 ++++
 lib/Kconfig                      |   14 +
 lib/Makefile                     |    1 +
 lib/assoc_array.c                | 1745 ++++++++++++++++++++++++++++++++++++++
 6 files changed, 2608 insertions(+)
 create mode 100644 Documentation/assoc_array.txt
 create mode 100644 include/linux/assoc_array.h
 create mode 100644 include/linux/assoc_array_priv.h
 create mode 100644 lib/assoc_array.c

diff --git a/Documentation/assoc_array.txt b/Documentation/assoc_array.txt
new file mode 100644
index 000000000000..f4faec0f66e4
--- /dev/null
+++ b/Documentation/assoc_array.txt
@@ -0,0 +1,574 @@
+		   ========================================
+		   GENERIC ASSOCIATIVE ARRAY IMPLEMENTATION
+		   ========================================
+
+Contents:
+
+ - Overview.
+
+ - The public API.
+   - Edit script.
+   - Operations table.
+   - Manipulation functions.
+   - Access functions.
+   - Index key form.
+
+ - Internal workings.
+   - Basic internal tree layout.
+   - Shortcuts.
+   - Splitting and collapsing nodes.
+   - Non-recursive iteration.
+   - Simultaneous alteration and iteration.
+
+
+========
+OVERVIEW
+========
+
+This associative array implementation is an object container with the following
+properties:
+
+ (1) Objects are opaque pointers.  The implementation does not care where they
+     point (if anywhere) or what they point to (if anything).
+
+     [!] NOTE: Pointers to objects _must_ be zero in the least significant bit.
+
+ (2) Objects do not need to contain linkage blocks for use by the array.  This
+     permits an object to be located in multiple arrays simultaneously.
+     Rather, the array is made up of metadata blocks that point to objects.
+
+ (3) Objects require index keys to locate them within the array.
+
+ (4) Index keys must be unique.  Inserting an object with the same key as one
+     already in the array will replace the old object.
+
+ (5) Index keys can be of any length and can be of different lengths.
+
+ (6) Index keys should encode the length early on, before any variation due to
+     length is seen.
+
+ (7) Index keys can include a hash to scatter objects throughout the array.
+
+ (8) The array can iterated over.  The objects will not necessarily come out in
+     key order.
+
+ (9) The array can be iterated over whilst it is being modified, provided the
+     RCU readlock is being held by the iterator.  Note, however, under these
+     circumstances, some objects may be seen more than once.  If this is a
+     problem, the iterator should lock against modification.  Objects will not
+     be missed, however, unless deleted.
+
+(10) Objects in the array can be looked up by means of their index key.
+
+(11) Objects can be looked up whilst the array is being modified, provided the
+     RCU readlock is being held by the thread doing the look up.
+
+The implementation uses a tree of 16-pointer nodes internally that are indexed
+on each level by nibbles from the index key in the same manner as in a radix
+tree.  To improve memory efficiency, shortcuts can be emplaced to skip over
+what would otherwise be a series of single-occupancy nodes.  Further, nodes
+pack leaf object pointers into spare space in the node rather than making an
+extra branch until as such time an object needs to be added to a full node.
+
+
+==============
+THE PUBLIC API
+==============
+
+The public API can be found in <linux/assoc_array.h>.  The associative array is
+rooted on the following structure:
+
+	struct assoc_array {
+		...
+	};
+
+The code is selected by enabling CONFIG_ASSOCIATIVE_ARRAY.
+
+
+EDIT SCRIPT
+-----------
+
+The insertion and deletion functions produce an 'edit script' that can later be
+applied to effect the changes without risking ENOMEM.  This retains the
+preallocated metadata blocks that will be installed in the internal tree and
+keeps track of the metadata blocks that will be removed from the tree when the
+script is applied.
+
+This is also used to keep track of dead blocks and dead objects after the
+script has been applied so that they can be freed later.  The freeing is done
+after an RCU grace period has passed - thus allowing access functions to
+proceed under the RCU read lock.
+
+The script appears as outside of the API as a pointer of the type:
+
+	struct assoc_array_edit;
+
+There are two functions for dealing with the script:
+
+ (1) Apply an edit script.
+
+	void assoc_array_apply_edit(struct assoc_array_edit *edit);
+
+     This will perform the edit functions, interpolating various write barriers
+     to permit accesses under the RCU read lock to continue.  The edit script
+     will then be passed to call_rcu() to free it and any dead stuff it points
+     to.
+
+ (2) Cancel an edit script.
+
+	void assoc_array_cancel_edit(struct assoc_array_edit *edit);
+
+     This frees the edit script and all preallocated memory immediately.  If
+     this was for insertion, the new object is _not_ released by this function,
+     but must rather be released by the caller.
+
+These functions are guaranteed not to fail.
+
+
+OPERATIONS TABLE
+----------------
+
+Various functions take a table of operations:
+
+	struct assoc_array_ops {
+		...
+	};
+
+This points to a number of methods, all of which need to be provided:
+
+ (1) Get a chunk of index key from caller data:
+
+	unsigned long (*get_key_chunk)(const void *index_key, int level);
+
+     This should return a chunk of caller-supplied index key starting at the
+     *bit* position given by the level argument.  The level argument will be a
+     multiple of ASSOC_ARRAY_KEY_CHUNK_SIZE and the function should return
+     ASSOC_ARRAY_KEY_CHUNK_SIZE bits.  No error is possible.
+
+
+ (2) Get a chunk of an object's index key.
+
+	unsigned long (*get_object_key_chunk)(const void *object, int level);
+
+     As the previous function, but gets its data from an object in the array
+     rather than from a caller-supplied index key.
+
+
+ (3) See if this is the object we're looking for.
+
+	bool (*compare_object)(const void *object, const void *index_key);
+
+     Compare the object against an index key and return true if it matches and
+     false if it doesn't.
+
+
+ (4) Diff the index keys of two objects.
+
+	int (*diff_objects)(const void *a, const void *b);
+
+     Return the bit position at which the index keys of two objects differ or
+     -1 if they are the same.
+
+
+ (5) Free an object.
+
+	void (*free_object)(void *object);
+
+     Free the specified object.  Note that this may be called an RCU grace
+     period after assoc_array_apply_edit() was called, so synchronize_rcu() may
+     be necessary on module unloading.
+
+
+MANIPULATION FUNCTIONS
+----------------------
+
+There are a number of functions for manipulating an associative array:
+
+ (1) Initialise an associative array.
+
+	void assoc_array_init(struct assoc_array *array);
+
+     This initialises the base structure for an associative array.  It can't
+     fail.
+
+
+ (2) Insert/replace an object in an associative array.
+
+	struct assoc_array_edit *
+	assoc_array_insert(struct assoc_array *array,
+			   const struct assoc_array_ops *ops,
+			   const void *index_key,
+			   void *object);
+
+     This inserts the given object into the array.  Note that the least
+     significant bit of the pointer must be zero as it's used to type-mark
+     pointers internally.
+
+     If an object already exists for that key then it will be replaced with the
+     new object and the old one will be freed automatically.
+
+     The index_key argument should hold index key information and is
+     passed to the methods in the ops table when they are called.
+
+     This function makes no alteration to the array itself, but rather returns
+     an edit script that must be applied.  -ENOMEM is returned in the case of
+     an out-of-memory error.
+
+     The caller should lock exclusively against other modifiers of the array.
+
+
+ (3) Delete an object from an associative array.
+
+	struct assoc_array_edit *
+	assoc_array_delete(struct assoc_array *array,
+			   const struct assoc_array_ops *ops,
+			   const void *index_key);
+
+     This deletes an object that matches the specified data from the array.
+
+     The index_key argument should hold index key information and is
+     passed to the methods in the ops table when they are called.
+
+     This function makes no alteration to the array itself, but rather returns
+     an edit script that must be applied.  -ENOMEM is returned in the case of
+     an out-of-memory error.  NULL will be returned if the specified object is
+     not found within the array.
+
+     The caller should lock exclusively against other modifiers of the array.
+
+
+ (4) Delete all objects from an associative array.
+
+	struct assoc_array_edit *
+	assoc_array_clear(struct assoc_array *array,
+			  const struct assoc_array_ops *ops);
+
+     This deletes all the objects from an associative array and leaves it
+     completely empty.
+
+     This function makes no alteration to the array itself, but rather returns
+     an edit script that must be applied.  -ENOMEM is returned in the case of
+     an out-of-memory error.
+
+     The caller should lock exclusively against other modifiers of the array.
+
+
+ (5) Destroy an associative array, deleting all objects.
+
+	void assoc_array_destroy(struct assoc_array *array,
+				 const struct assoc_array_ops *ops);
+
+     This destroys the contents of the associative array and leaves it
+     completely empty.  It is not permitted for another thread to be traversing
+     the array under the RCU read lock at the same time as this function is
+     destroying it as no RCU deferral is performed on memory release -
+     something that would require memory to be allocated.
+
+     The caller should lock exclusively against other modifiers and accessors
+     of the array.
+
+
+ (6) Garbage collect an associative array.
+
+	int assoc_array_gc(struct assoc_array *array,
+			   const struct assoc_array_ops *ops,
+			   bool (*iterator)(void *object, void *iterator_data),
+			   void *iterator_data);
+
+     This iterates over the objects in an associative array and passes each one
+     to iterator().  If iterator() returns true, the object is kept.  If it
+     returns false, the object will be freed.  If the iterator() function
+     returns true, it must perform any appropriate refcount incrementing on the
+     object before returning.
+
+     The internal tree will be packed down if possible as part of the iteration
+     to reduce the number of nodes in it.
+
+     The iterator_data is passed directly to iterator() and is otherwise
+     ignored by the function.
+
+     The function will return 0 if successful and -ENOMEM if there wasn't
+     enough memory.
+
+     It is possible for other threads to iterate over or search the array under
+     the RCU read lock whilst this function is in progress.  The caller should
+     lock exclusively against other modifiers of the array.
+
+
+ACCESS FUNCTIONS
+----------------
+
+There are two functions for accessing an associative array:
+
+ (1) Iterate over all the objects in an associative array.
+
+	int assoc_array_iterate(const struct assoc_array *array,
+				int (*iterator)(const void *object,
+						void *iterator_data),
+				void *iterator_data);
+
+     This passes each object in the array to the iterator callback function.
+     iterator_data is private data for that function.
+
+     This may be used on an array at the same time as the array is being
+     modified, provided the RCU read lock is held.  Under such circumstances,
+     it is possible for the iteration function to see some objects twice.  If
+     this is a problem, then modification should be locked against.  The
+     iteration algorithm should not, however, miss any objects.
+
+     The function will return 0 if no objects were in the array or else it will
+     return the result of the last iterator function called.  Iteration stops
+     immediately if any call to the iteration function results in a non-zero
+     return.
+
+
+ (2) Find an object in an associative array.
+
+	void *assoc_array_find(const struct assoc_array *array,
+			       const struct assoc_array_ops *ops,
+			       const void *index_key);
+
+     This walks through the array's internal tree directly to the object
+     specified by the index key..
+
+     This may be used on an array at the same time as the array is being
+     modified, provided the RCU read lock is held.
+
+     The function will return the object if found (and set *_type to the object
+     type) or will return NULL if the object was not found.
+
+
+INDEX KEY FORM
+--------------
+
+The index key can be of any form, but since the algorithms aren't told how long
+the key is, it is strongly recommended that the index key includes its length
+very early on before any variation due to the length would have an effect on
+comparisons.
+
+This will cause leaves with different length keys to scatter away from each
+other - and those with the same length keys to cluster together.
+
+It is also recommended that the index key begin with a hash of the rest of the
+key to maximise scattering throughout keyspace.
+
+The better the scattering, the wider and lower the internal tree will be.
+
+Poor scattering isn't too much of a problem as there are shortcuts and nodes
+can contain mixtures of leaves and metadata pointers.
+
+The index key is read in chunks of machine word.  Each chunk is subdivided into
+one nibble (4 bits) per level, so on a 32-bit CPU this is good for 8 levels and
+on a 64-bit CPU, 16 levels.  Unless the scattering is really poor, it is
+unlikely that more than one word of any particular index key will have to be
+used.
+
+
+=================
+INTERNAL WORKINGS
+=================
+
+The associative array data structure has an internal tree.  This tree is
+constructed of two types of metadata blocks: nodes and shortcuts.
+
+A node is an array of slots.  Each slot can contain one of four things:
+
+ (*) A NULL pointer, indicating that the slot is empty.
+
+ (*) A pointer to an object (a leaf).
+
+ (*) A pointer to a node at the next level.
+
+ (*) A pointer to a shortcut.
+
+
+BASIC INTERNAL TREE LAYOUT
+--------------------------
+
+Ignoring shortcuts for the moment, the nodes form a multilevel tree.  The index
+key space is strictly subdivided by the nodes in the tree and nodes occur on
+fixed levels.  For example:
+
+ Level:	0		1		2		3
+	===============	===============	===============	===============
+							NODE D
+			NODE B		NODE C	+------>+---+
+		+------>+---+	+------>+---+	|	| 0 |
+	NODE A	|	| 0 |	|	| 0 |	|	+---+
+	+---+	|	+---+	|	+---+	|	:   :
+	| 0 |	|	:   :	|	:   :	|	+---+
+	+---+	|	+---+	|	+---+	|	| f |
+	| 1 |---+	| 3 |---+	| 7 |---+	+---+
+	+---+		+---+		+---+
+	:   :		:   :		| 8 |---+
+	+---+		+---+		+---+	|	NODE E
+	| e |---+	| f |		:   :   +------>+---+
+	+---+	|	+---+		+---+		| 0 |
+	| f |	|			| f |		+---+
+	+---+	|			+---+		:   :
+		|	NODE F				+---+
+		+------>+---+				| f |
+			| 0 |		NODE G		+---+
+			+---+	+------>+---+
+			:   :	|	| 0 |
+			+---+	|	+---+
+			| 6 |---+	:   :
+			+---+		+---+
+			:   :		| f |
+			+---+		+---+
+			| f |
+			+---+
+
+In the above example, there are 7 nodes (A-G), each with 16 slots (0-f).
+Assuming no other meta data nodes in the tree, the key space is divided thusly:
+
+	KEY PREFIX	NODE
+	==========	====
+	137*		D
+	138*		E
+	13[0-69-f]*	C
+	1[0-24-f]*	B
+	e6*		G
+	e[0-57-f]*	F
+	[02-df]*	A
+
+So, for instance, keys with the following example index keys will be found in
+the appropriate nodes:
+
+	INDEX KEY	PREFIX	NODE
+	===============	=======	====
+	13694892892489	13	C
+	13795289025897	137	D
+	13889dde88793	138	E
+	138bbb89003093	138	E
+	1394879524789	12	C
+	1458952489	1	B
+	9431809de993ba	-	A
+	b4542910809cd	-	A
+	e5284310def98	e	F
+	e68428974237	e6	G
+	e7fffcbd443	e	F
+	f3842239082	-	A
+
+To save memory, if a node can hold all the leaves in its portion of keyspace,
+then the node will have all those leaves in it and will not have any metadata
+pointers - even if some of those leaves would like to be in the same slot.
+
+A node can contain a heterogeneous mix of leaves and metadata pointers.
+Metadata pointers must be in the slots that match their subdivisions of key
+space.  The leaves can be in any slot not occupied by a metadata pointer.  It
+is guaranteed that none of the leaves in a node will match a slot occupied by a
+metadata pointer.  If the metadata pointer is there, any leaf whose key matches
+the metadata key prefix must be in the subtree that the metadata pointer points
+to.
+
+In the above example list of index keys, node A will contain:
+
+	SLOT	CONTENT		INDEX KEY (PREFIX)
+	====	===============	==================
+	1	PTR TO NODE B	1*
+	any	LEAF		9431809de993ba
+	any	LEAF		b4542910809cd
+	e	PTR TO NODE F	e*
+	any	LEAF		f3842239082
+
+and node B:
+
+	3	PTR TO NODE C	13*
+	any	LEAF		1458952489
+
+
+SHORTCUTS
+---------
+
+Shortcuts are metadata records that jump over a piece of keyspace.  A shortcut
+is a replacement for a series of single-occupancy nodes ascending through the
+levels.  Shortcuts exist to save memory and to speed up traversal.
+
+It is possible for the root of the tree to be a shortcut - say, for example,
+the tree contains at least 17 nodes all with key prefix '1111'.  The insertion
+algorithm will insert a shortcut to skip over the '1111' keyspace in a single
+bound and get to the fourth level where these actually become different.
+
+
+SPLITTING AND COLLAPSING NODES
+------------------------------
+
+Each node has a maximum capacity of 16 leaves and metadata pointers.  If the
+insertion algorithm finds that it is trying to insert a 17th object into a
+node, that node will be split such that at least two leaves that have a common
+key segment at that level end up in a separate node rooted on that slot for
+that common key segment.
+
+If the leaves in a full node and the leaf that is being inserted are
+sufficiently similar, then a shortcut will be inserted into the tree.
+
+When the number of objects in the subtree rooted at a node falls to 16 or
+fewer, then the subtree will be collapsed down to a single node - and this will
+ripple towards the root if possible.
+
+
+NON-RECURSIVE ITERATION
+-----------------------
+
+Each node and shortcut contains a back pointer to its parent and the number of
+slot in that parent that points to it.  None-recursive iteration uses these to
+proceed rootwards through the tree, going to the parent node, slot N + 1 to
+make sure progress is made without the need for a stack.
+
+The backpointers, however, make simultaneous alteration and iteration tricky.
+
+
+SIMULTANEOUS ALTERATION AND ITERATION
+-------------------------------------
+
+There are a number of cases to consider:
+
+ (1) Simple insert/replace.  This involves simply replacing a NULL or old
+     matching leaf pointer with the pointer to the new leaf after a barrier.
+     The metadata blocks don't change otherwise.  An old leaf won't be freed
+     until after the RCU grace period.
+
+ (2) Simple delete.  This involves just clearing an old matching leaf.  The
+     metadata blocks don't change otherwise.  The old leaf won't be freed until
+     after the RCU grace period.
+
+ (3) Insertion replacing part of a subtree that we haven't yet entered.  This
+     may involve replacement of part of that subtree - but that won't affect
+     the iteration as we won't have reached the pointer to it yet and the
+     ancestry blocks are not replaced (the layout of those does not change).
+
+ (4) Insertion replacing nodes that we're actively processing.  This isn't a
+     problem as we've passed the anchoring pointer and won't switch onto the
+     new layout until we follow the back pointers - at which point we've
+     already examined the leaves in the replaced node (we iterate over all the
+     leaves in a node before following any of its metadata pointers).
+
+     We might, however, re-see some leaves that have been split out into a new
+     branch that's in a slot further along than we were at.
+
+ (5) Insertion replacing nodes that we're processing a dependent branch of.
+     This won't affect us until we follow the back pointers.  Similar to (4).
+
+ (6) Deletion collapsing a branch under us.  This doesn't affect us because the
+     back pointers will get us back to the parent of the new node before we
+     could see the new node.  The entire collapsed subtree is thrown away
+     unchanged - and will still be rooted on the same slot, so we shouldn't
+     process it a second time as we'll go back to slot + 1.
+
+Note:
+
+ (*) Under some circumstances, we need to simultaneously change the parent
+     pointer and the parent slot pointer on a node (say, for example, we
+     inserted another node before it and moved it up a level).  We cannot do
+     this without locking against a read - so we have to replace that node too.
+
+     However, when we're changing a shortcut into a node this isn't a problem
+     as shortcuts only have one slot and so the parent slot number isn't used
+     when traversing backwards over one.  This means that it's okay to change
+     the slot number first - provided suitable barriers are used to make sure
+     the parent slot number is read after the back pointer.
+
+Obsolete blocks and leaves are freed up after an RCU grace period has passed,
+so as long as anyone doing walking or iteration holds the RCU read lock, the
+old superstructure should not go away on them.
diff --git a/include/linux/assoc_array.h b/include/linux/assoc_array.h
new file mode 100644
index 000000000000..9a193b84238a
--- /dev/null
+++ b/include/linux/assoc_array.h
@@ -0,0 +1,92 @@
+/* Generic associative array implementation.
+ *
+ * See Documentation/assoc_array.txt for information.
+ *
+ * Copyright (C) 2013 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _LINUX_ASSOC_ARRAY_H
+#define _LINUX_ASSOC_ARRAY_H
+
+#ifdef CONFIG_ASSOCIATIVE_ARRAY
+
+#include <linux/types.h>
+
+#define ASSOC_ARRAY_KEY_CHUNK_SIZE BITS_PER_LONG /* Key data retrieved in chunks of this size */
+
+/*
+ * Generic associative array.
+ */
+struct assoc_array {
+	struct assoc_array_ptr	*root;		/* The node at the root of the tree */
+	unsigned long		nr_leaves_on_tree;
+};
+
+/*
+ * Operations on objects and index keys for use by array manipulation routines.
+ */
+struct assoc_array_ops {
+	/* Method to get a chunk of an index key from caller-supplied data */
+	unsigned long (*get_key_chunk)(const void *index_key, int level);
+
+	/* Method to get a piece of an object's index key */
+	unsigned long (*get_object_key_chunk)(const void *object, int level);
+
+	/* Is this the object we're looking for? */
+	bool (*compare_object)(const void *object, const void *index_key);
+
+	/* How different are two objects, to a bit position in their keys? (or
+	 * -1 if they're the same)
+	 */
+	int (*diff_objects)(const void *a, const void *b);
+
+	/* Method to free an object. */
+	void (*free_object)(void *object);
+};
+
+/*
+ * Access and manipulation functions.
+ */
+struct assoc_array_edit;
+
+static inline void assoc_array_init(struct assoc_array *array)
+{
+	array->root = NULL;
+	array->nr_leaves_on_tree = 0;
+}
+
+extern int assoc_array_iterate(const struct assoc_array *array,
+			       int (*iterator)(const void *object,
+					       void *iterator_data),
+			       void *iterator_data);
+extern void *assoc_array_find(const struct assoc_array *array,
+			      const struct assoc_array_ops *ops,
+			      const void *index_key);
+extern void assoc_array_destroy(struct assoc_array *array,
+				const struct assoc_array_ops *ops);
+extern struct assoc_array_edit *assoc_array_insert(struct assoc_array *array,
+						   const struct assoc_array_ops *ops,
+						   const void *index_key,
+						   void *object);
+extern void assoc_array_insert_set_object(struct assoc_array_edit *edit,
+					  void *object);
+extern struct assoc_array_edit *assoc_array_delete(struct assoc_array *array,
+						   const struct assoc_array_ops *ops,
+						   const void *index_key);
+extern struct assoc_array_edit *assoc_array_clear(struct assoc_array *array,
+						  const struct assoc_array_ops *ops);
+extern void assoc_array_apply_edit(struct assoc_array_edit *edit);
+extern void assoc_array_cancel_edit(struct assoc_array_edit *edit);
+extern int assoc_array_gc(struct assoc_array *array,
+			  const struct assoc_array_ops *ops,
+			  bool (*iterator)(void *object, void *iterator_data),
+			  void *iterator_data);
+
+#endif /* CONFIG_ASSOCIATIVE_ARRAY */
+#endif /* _LINUX_ASSOC_ARRAY_H */
diff --git a/include/linux/assoc_array_priv.h b/include/linux/assoc_array_priv.h
new file mode 100644
index 000000000000..711275e6681c
--- /dev/null
+++ b/include/linux/assoc_array_priv.h
@@ -0,0 +1,182 @@
+/* Private definitions for the generic associative array implementation.
+ *
+ * See Documentation/assoc_array.txt for information.
+ *
+ * Copyright (C) 2013 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _LINUX_ASSOC_ARRAY_PRIV_H
+#define _LINUX_ASSOC_ARRAY_PRIV_H
+
+#ifdef CONFIG_ASSOCIATIVE_ARRAY
+
+#include <linux/assoc_array.h>
+
+#define ASSOC_ARRAY_FAN_OUT		16	/* Number of slots per node */
+#define ASSOC_ARRAY_FAN_MASK		(ASSOC_ARRAY_FAN_OUT - 1)
+#define ASSOC_ARRAY_LEVEL_STEP		(ilog2(ASSOC_ARRAY_FAN_OUT))
+#define ASSOC_ARRAY_LEVEL_STEP_MASK	(ASSOC_ARRAY_LEVEL_STEP - 1)
+#define ASSOC_ARRAY_KEY_CHUNK_MASK	(ASSOC_ARRAY_KEY_CHUNK_SIZE - 1)
+#define ASSOC_ARRAY_KEY_CHUNK_SHIFT	(ilog2(BITS_PER_LONG))
+
+/*
+ * Undefined type representing a pointer with type information in the bottom
+ * two bits.
+ */
+struct assoc_array_ptr;
+
+/*
+ * An N-way node in the tree.
+ *
+ * Each slot contains one of four things:
+ *
+ *	(1) Nothing (NULL).
+ *
+ *	(2) A leaf object (pointer types 0).
+ *
+ *	(3) A next-level node (pointer type 1, subtype 0).
+ *
+ *	(4) A shortcut (pointer type 1, subtype 1).
+ *
+ * The tree is optimised for search-by-ID, but permits reasonable iteration
+ * also.
+ *
+ * The tree is navigated by constructing an index key consisting of an array of
+ * segments, where each segment is ilog2(ASSOC_ARRAY_FAN_OUT) bits in size.
+ *
+ * The segments correspond to levels of the tree (the first segment is used at
+ * level 0, the second at level 1, etc.).
+ */
+struct assoc_array_node {
+	struct assoc_array_ptr	*back_pointer;
+	u8			parent_slot;
+	struct assoc_array_ptr	*slots[ASSOC_ARRAY_FAN_OUT];
+	unsigned long		nr_leaves_on_branch;
+};
+
+/*
+ * A shortcut through the index space out to where a collection of nodes/leaves
+ * with the same IDs live.
+ */
+struct assoc_array_shortcut {
+	struct assoc_array_ptr	*back_pointer;
+	int			parent_slot;
+	int			skip_to_level;
+	struct assoc_array_ptr	*next_node;
+	unsigned long		index_key[];
+};
+
+/*
+ * Preallocation cache.
+ */
+struct assoc_array_edit {
+	struct rcu_head			rcu;
+	struct assoc_array		*array;
+	const struct assoc_array_ops	*ops;
+	const struct assoc_array_ops	*ops_for_excised_subtree;
+	struct assoc_array_ptr		*leaf;
+	struct assoc_array_ptr		**leaf_p;
+	struct assoc_array_ptr		*dead_leaf;
+	struct assoc_array_ptr		*new_meta[3];
+	struct assoc_array_ptr		*excised_meta[1];
+	struct assoc_array_ptr		*excised_subtree;
+	struct assoc_array_ptr		**set_backpointers[ASSOC_ARRAY_FAN_OUT];
+	struct assoc_array_ptr		*set_backpointers_to;
+	struct assoc_array_node		*adjust_count_on;
+	long				adjust_count_by;
+	struct {
+		struct assoc_array_ptr	**ptr;
+		struct assoc_array_ptr	*to;
+	} set[2];
+	struct {
+		u8			*p;
+		u8			to;
+	} set_parent_slot[1];
+	u8				segment_cache[ASSOC_ARRAY_FAN_OUT + 1];
+};
+
+/*
+ * Internal tree member pointers are marked in the bottom one or two bits to
+ * indicate what type they are so that we don't have to look behind every
+ * pointer to see what it points to.
+ *
+ * We provide functions to test type annotations and to create and translate
+ * the annotated pointers.
+ */
+#define ASSOC_ARRAY_PTR_TYPE_MASK 0x1UL
+#define ASSOC_ARRAY_PTR_LEAF_TYPE 0x0UL	/* Points to leaf (or nowhere) */
+#define ASSOC_ARRAY_PTR_META_TYPE 0x1UL	/* Points to node or shortcut */
+#define ASSOC_ARRAY_PTR_SUBTYPE_MASK	0x2UL
+#define ASSOC_ARRAY_PTR_NODE_SUBTYPE	0x0UL
+#define ASSOC_ARRAY_PTR_SHORTCUT_SUBTYPE 0x2UL
+
+static inline bool assoc_array_ptr_is_meta(const struct assoc_array_ptr *x)
+{
+	return (unsigned long)x & ASSOC_ARRAY_PTR_TYPE_MASK;
+}
+static inline bool assoc_array_ptr_is_leaf(const struct assoc_array_ptr *x)
+{
+	return !assoc_array_ptr_is_meta(x);
+}
+static inline bool assoc_array_ptr_is_shortcut(const struct assoc_array_ptr *x)
+{
+	return (unsigned long)x & ASSOC_ARRAY_PTR_SUBTYPE_MASK;
+}
+static inline bool assoc_array_ptr_is_node(const struct assoc_array_ptr *x)
+{
+	return !assoc_array_ptr_is_shortcut(x);
+}
+
+static inline void *assoc_array_ptr_to_leaf(const struct assoc_array_ptr *x)
+{
+	return (void *)((unsigned long)x & ~ASSOC_ARRAY_PTR_TYPE_MASK);
+}
+
+static inline
+unsigned long __assoc_array_ptr_to_meta(const struct assoc_array_ptr *x)
+{
+	return (unsigned long)x &
+		~(ASSOC_ARRAY_PTR_SUBTYPE_MASK | ASSOC_ARRAY_PTR_TYPE_MASK);
+}
+static inline
+struct assoc_array_node *assoc_array_ptr_to_node(const struct assoc_array_ptr *x)
+{
+	return (struct assoc_array_node *)__assoc_array_ptr_to_meta(x);
+}
+static inline
+struct assoc_array_shortcut *assoc_array_ptr_to_shortcut(const struct assoc_array_ptr *x)
+{
+	return (struct assoc_array_shortcut *)__assoc_array_ptr_to_meta(x);
+}
+
+static inline
+struct assoc_array_ptr *__assoc_array_x_to_ptr(const void *p, unsigned long t)
+{
+	return (struct assoc_array_ptr *)((unsigned long)p | t);
+}
+static inline
+struct assoc_array_ptr *assoc_array_leaf_to_ptr(const void *p)
+{
+	return __assoc_array_x_to_ptr(p, ASSOC_ARRAY_PTR_LEAF_TYPE);
+}
+static inline
+struct assoc_array_ptr *assoc_array_node_to_ptr(const struct assoc_array_node *p)
+{
+	return __assoc_array_x_to_ptr(
+		p, ASSOC_ARRAY_PTR_META_TYPE | ASSOC_ARRAY_PTR_NODE_SUBTYPE);
+}
+static inline
+struct assoc_array_ptr *assoc_array_shortcut_to_ptr(const struct assoc_array_shortcut *p)
+{
+	return __assoc_array_x_to_ptr(
+		p, ASSOC_ARRAY_PTR_META_TYPE | ASSOC_ARRAY_PTR_SHORTCUT_SUBTYPE);
+}
+
+#endif /* CONFIG_ASSOCIATIVE_ARRAY */
+#endif /* _LINUX_ASSOC_ARRAY_PRIV_H */
diff --git a/lib/Kconfig b/lib/Kconfig
index b3c8be0da17f..3cb879b1f282 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -322,6 +322,20 @@ config TEXTSEARCH_FSM
 config BTREE
 	boolean
 
+config ASSOCIATIVE_ARRAY
+	bool
+	help
+	  Generic associative array.  Can be searched and iterated over whilst
+	  it is being modified.  It is also reasonably quick to search and
+	  modify.  The algorithms are non-recursive, and the trees are highly
+	  capacious.
+
+	  See:
+
+		Documentation/assoc_array.txt
+
+	  for more information.
+
 config HAS_IOMEM
 	boolean
 	depends on !NO_IOMEM
diff --git a/lib/Makefile b/lib/Makefile
index f3bb2cb98adf..1e806477e472 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -51,6 +51,7 @@ CFLAGS_hweight.o = $(subst $(quote),,$(CONFIG_ARCH_HWEIGHT_CFLAGS))
 obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o
 
 obj-$(CONFIG_BTREE) += btree.o
+obj-$(CONFIG_ASSOCIATIVE_ARRAY) += assoc_array.o
 obj-$(CONFIG_DEBUG_PREEMPT) += smp_processor_id.o
 obj-$(CONFIG_DEBUG_LIST) += list_debug.o
 obj-$(CONFIG_DEBUG_OBJECTS) += debugobjects.o
diff --git a/lib/assoc_array.c b/lib/assoc_array.c
new file mode 100644
index 000000000000..a0952818f938
--- /dev/null
+++ b/lib/assoc_array.c
@@ -0,0 +1,1745 @@
+/* Generic associative array implementation.
+ *
+ * See Documentation/assoc_array.txt for information.
+ *
+ * Copyright (C) 2013 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+//#define DEBUG
+#include <linux/slab.h>
+#include <linux/assoc_array_priv.h>
+
+/*
+ * Iterate over an associative array.  The caller must hold the RCU read lock
+ * or better.
+ */
+static int assoc_array_subtree_iterate(const struct assoc_array_ptr *root,
+				       const struct assoc_array_ptr *stop,
+				       int (*iterator)(const void *leaf,
+						       void *iterator_data),
+				       void *iterator_data)
+{
+	const struct assoc_array_shortcut *shortcut;
+	const struct assoc_array_node *node;
+	const struct assoc_array_ptr *cursor, *ptr, *parent;
+	unsigned long has_meta;
+	int slot, ret;
+
+	cursor = root;
+
+begin_node:
+	if (assoc_array_ptr_is_shortcut(cursor)) {
+		/* Descend through a shortcut */
+		shortcut = assoc_array_ptr_to_shortcut(cursor);
+		smp_read_barrier_depends();
+		cursor = ACCESS_ONCE(shortcut->next_node);
+	}
+
+	node = assoc_array_ptr_to_node(cursor);
+	smp_read_barrier_depends();
+	slot = 0;
+
+	/* We perform two passes of each node.
+	 *
+	 * The first pass does all the leaves in this node.  This means we
+	 * don't miss any leaves if the node is split up by insertion whilst
+	 * we're iterating over the branches rooted here (we may, however, see
+	 * some leaves twice).
+	 */
+	has_meta = 0;
+	for (; slot < ASSOC_ARRAY_FAN_OUT; slot++) {
+		ptr = ACCESS_ONCE(node->slots[slot]);
+		has_meta |= (unsigned long)ptr;
+		if (ptr && assoc_array_ptr_is_leaf(ptr)) {
+			/* We need a barrier between the read of the pointer
+			 * and dereferencing the pointer - but only if we are
+			 * actually going to dereference it.
+			 */
+			smp_read_barrier_depends();
+
+			/* Invoke the callback */
+			ret = iterator(assoc_array_ptr_to_leaf(ptr),
+				       iterator_data);
+			if (ret)
+				return ret;
+		}
+	}
+
+	/* The second pass attends to all the metadata pointers.  If we follow
+	 * one of these we may find that we don't come back here, but rather go
+	 * back to a replacement node with the leaves in a different layout.
+	 *
+	 * We are guaranteed to make progress, however, as the slot number for
+	 * a particular portion of the key space cannot change - and we
+	 * continue at the back pointer + 1.
+	 */
+	if (!(has_meta & ASSOC_ARRAY_PTR_META_TYPE))
+		goto finished_node;
+	slot = 0;
+
+continue_node:
+	node = assoc_array_ptr_to_node(cursor);
+	smp_read_barrier_depends();
+
+	for (; slot < ASSOC_ARRAY_FAN_OUT; slot++) {
+		ptr = ACCESS_ONCE(node->slots[slot]);
+		if (assoc_array_ptr_is_meta(ptr)) {
+			cursor = ptr;
+			goto begin_node;
+		}
+	}
+
+finished_node:
+	/* Move up to the parent (may need to skip back over a shortcut) */
+	parent = ACCESS_ONCE(node->back_pointer);
+	slot = node->parent_slot;
+	if (parent == stop)
+		return 0;
+
+	if (assoc_array_ptr_is_shortcut(parent)) {
+		shortcut = assoc_array_ptr_to_shortcut(parent);
+		smp_read_barrier_depends();
+		cursor = parent;
+		parent = ACCESS_ONCE(shortcut->back_pointer);
+		slot = shortcut->parent_slot;
+		if (parent == stop)
+			return 0;
+	}
+
+	/* Ascend to next slot in parent node */
+	cursor = parent;
+	slot++;
+	goto continue_node;
+}
+
+/**
+ * assoc_array_iterate - Pass all objects in the array to a callback
+ * @array: The array to iterate over.
+ * @iterator: The callback function.
+ * @iterator_data: Private data for the callback function.
+ *
+ * Iterate over all the objects in an associative array.  Each one will be
+ * presented to the iterator function.
+ *
+ * If the array is being modified concurrently with the iteration then it is
+ * possible that some objects in the array will be passed to the iterator
+ * callback more than once - though every object should be passed at least
+ * once.  If this is undesirable then the caller must lock against modification
+ * for the duration of this function.
+ *
+ * The function will return 0 if no objects were in the array or else it will
+ * return the result of the last iterator function called.  Iteration stops
+ * immediately if any call to the iteration function results in a non-zero
+ * return.
+ *
+ * The caller should hold the RCU read lock or better if concurrent
+ * modification is possible.
+ */
+int assoc_array_iterate(const struct assoc_array *array,
+			int (*iterator)(const void *object,
+					void *iterator_data),
+			void *iterator_data)
+{
+	struct assoc_array_ptr *root = ACCESS_ONCE(array->root);
+
+	if (!root)
+		return 0;
+	return assoc_array_subtree_iterate(root, NULL, iterator, iterator_data);
+}
+
+enum assoc_array_walk_status {
+	assoc_array_walk_tree_empty,
+	assoc_array_walk_found_terminal_node,
+	assoc_array_walk_found_wrong_shortcut,
+} status;
+
+struct assoc_array_walk_result {
+	struct {
+		struct assoc_array_node	*node;	/* Node in which leaf might be found */
+		int		level;
+		int		slot;
+	} terminal_node;
+	struct {
+		struct assoc_array_shortcut *shortcut;
+		int		level;
+		int		sc_level;
+		unsigned long	sc_segments;
+		unsigned long	dissimilarity;
+	} wrong_shortcut;
+};
+
+/*
+ * Navigate through the internal tree looking for the closest node to the key.
+ */
+static enum assoc_array_walk_status
+assoc_array_walk(const struct assoc_array *array,
+		 const struct assoc_array_ops *ops,
+		 const void *index_key,
+		 struct assoc_array_walk_result *result)
+{
+	struct assoc_array_shortcut *shortcut;
+	struct assoc_array_node *node;
+	struct assoc_array_ptr *cursor, *ptr;
+	unsigned long sc_segments, dissimilarity;
+	unsigned long segments;
+	int level, sc_level, next_sc_level;
+	int slot;
+
+	pr_devel("-->%s()\n", __func__);
+
+	cursor = ACCESS_ONCE(array->root);
+	if (!cursor)
+		return assoc_array_walk_tree_empty;
+
+	level = 0;
+
+	/* Use segments from the key for the new leaf to navigate through the
+	 * internal tree, skipping through nodes and shortcuts that are on
+	 * route to the destination.  Eventually we'll come to a slot that is
+	 * either empty or contains a leaf at which point we've found a node in
+	 * which the leaf we're looking for might be found or into which it
+	 * should be inserted.
+	 */
+jumped:
+	segments = ops->get_key_chunk(index_key, level);
+	pr_devel("segments[%d]: %lx\n", level, segments);
+
+	if (assoc_array_ptr_is_shortcut(cursor))
+		goto follow_shortcut;
+
+consider_node:
+	node = assoc_array_ptr_to_node(cursor);
+	smp_read_barrier_depends();
+
+	slot = segments >> (level & ASSOC_ARRAY_KEY_CHUNK_MASK);
+	slot &= ASSOC_ARRAY_FAN_MASK;
+	ptr = ACCESS_ONCE(node->slots[slot]);
+
+	pr_devel("consider slot %x [ix=%d type=%lu]\n",
+		 slot, level, (unsigned long)ptr & 3);
+
+	if (!assoc_array_ptr_is_meta(ptr)) {
+		/* The node doesn't have a node/shortcut pointer in the slot
+		 * corresponding to the index key that we have to follow.
+		 */
+		result->terminal_node.node = node;
+		result->terminal_node.level = level;
+		result->terminal_node.slot = slot;
+		pr_devel("<--%s() = terminal_node\n", __func__);
+		return assoc_array_walk_found_terminal_node;
+	}
+
+	if (assoc_array_ptr_is_node(ptr)) {
+		/* There is a pointer to a node in the slot corresponding to
+		 * this index key segment, so we need to follow it.
+		 */
+		cursor = ptr;
+		level += ASSOC_ARRAY_LEVEL_STEP;
+		if ((level & ASSOC_ARRAY_KEY_CHUNK_MASK) != 0)
+			goto consider_node;
+		goto jumped;
+	}
+
+	/* There is a shortcut in the slot corresponding to the index key
+	 * segment.  We follow the shortcut if its partial index key matches
+	 * this leaf's.  Otherwise we need to split the shortcut.
+	 */
+	cursor = ptr;
+follow_shortcut:
+	shortcut = assoc_array_ptr_to_shortcut(cursor);
+	smp_read_barrier_depends();
+	pr_devel("shortcut to %d\n", shortcut->skip_to_level);
+	sc_level = level + ASSOC_ARRAY_LEVEL_STEP;
+	BUG_ON(sc_level > shortcut->skip_to_level);
+
+	do {
+		/* Check the leaf against the shortcut's index key a word at a
+		 * time, trimming the final word (the shortcut stores the index
+		 * key completely from the root to the shortcut's target).
+		 */
+		if ((sc_level & ASSOC_ARRAY_KEY_CHUNK_MASK) == 0)
+			segments = ops->get_key_chunk(index_key, sc_level);
+
+		sc_segments = shortcut->index_key[sc_level >> ASSOC_ARRAY_KEY_CHUNK_SHIFT];
+		dissimilarity = segments ^ sc_segments;
+
+		if (round_up(sc_level, ASSOC_ARRAY_KEY_CHUNK_SIZE) > shortcut->skip_to_level) {
+			/* Trim segments that are beyond the shortcut */
+			int shift = shortcut->skip_to_level & ASSOC_ARRAY_KEY_CHUNK_MASK;
+			dissimilarity &= ~(ULONG_MAX << shift);
+			next_sc_level = shortcut->skip_to_level;
+		} else {
+			next_sc_level = sc_level + ASSOC_ARRAY_KEY_CHUNK_SIZE;
+			next_sc_level = round_down(next_sc_level, ASSOC_ARRAY_KEY_CHUNK_SIZE);
+		}
+
+		if (dissimilarity != 0) {
+			/* This shortcut points elsewhere */
+			result->wrong_shortcut.shortcut = shortcut;
+			result->wrong_shortcut.level = level;
+			result->wrong_shortcut.sc_level = sc_level;
+			result->wrong_shortcut.sc_segments = sc_segments;
+			result->wrong_shortcut.dissimilarity = dissimilarity;
+			return assoc_array_walk_found_wrong_shortcut;
+		}
+
+		sc_level = next_sc_level;
+	} while (sc_level < shortcut->skip_to_level);
+
+	/* The shortcut matches the leaf's index to this point. */
+	cursor = ACCESS_ONCE(shortcut->next_node);
+	if (((level ^ sc_level) & ~ASSOC_ARRAY_KEY_CHUNK_MASK) != 0) {
+		level = sc_level;
+		goto jumped;
+	} else {
+		level = sc_level;
+		goto consider_node;
+	}
+}
+
+/**
+ * assoc_array_find - Find an object by index key
+ * @array: The associative array to search.
+ * @ops: The operations to use.
+ * @index_key: The key to the object.
+ *
+ * Find an object in an associative array by walking through the internal tree
+ * to the node that should contain the object and then searching the leaves
+ * there.  NULL is returned if the requested object was not found in the array.
+ *
+ * The caller must hold the RCU read lock or better.
+ */
+void *assoc_array_find(const struct assoc_array *array,
+		       const struct assoc_array_ops *ops,
+		       const void *index_key)
+{
+	struct assoc_array_walk_result result;
+	const struct assoc_array_node *node;
+	const struct assoc_array_ptr *ptr;
+	const void *leaf;
+	int slot;
+
+	if (assoc_array_walk(array, ops, index_key, &result) !=
+	    assoc_array_walk_found_terminal_node)
+		return NULL;
+
+	node = result.terminal_node.node;
+	smp_read_barrier_depends();
+
+	/* If the target key is available to us, it's has to be pointed to by
+	 * the terminal node.
+	 */
+	for (slot = 0; slot < ASSOC_ARRAY_FAN_OUT; slot++) {
+		ptr = ACCESS_ONCE(node->slots[slot]);
+		if (ptr && assoc_array_ptr_is_leaf(ptr)) {
+			/* We need a barrier between the read of the pointer
+			 * and dereferencing the pointer - but only if we are
+			 * actually going to dereference it.
+			 */
+			leaf = assoc_array_ptr_to_leaf(ptr);
+			smp_read_barrier_depends();
+			if (ops->compare_object(leaf, index_key))
+				return (void *)leaf;
+		}
+	}
+
+	return NULL;
+}
+
+/*
+ * Destructively iterate over an associative array.  The caller must prevent
+ * other simultaneous accesses.
+ */
+static void assoc_array_destroy_subtree(struct assoc_array_ptr *root,
+					const struct assoc_array_ops *ops)
+{
+	struct assoc_array_shortcut *shortcut;
+	struct assoc_array_node *node;
+	struct assoc_array_ptr *cursor, *parent = NULL;
+	int slot = -1;
+
+	pr_devel("-->%s()\n", __func__);
+
+	cursor = root;
+	if (!cursor) {
+		pr_devel("empty\n");
+		return;
+	}
+
+move_to_meta:
+	if (assoc_array_ptr_is_shortcut(cursor)) {
+		/* Descend through a shortcut */
+		pr_devel("[%d] shortcut\n", slot);
+		BUG_ON(!assoc_array_ptr_is_shortcut(cursor));
+		shortcut = assoc_array_ptr_to_shortcut(cursor);
+		BUG_ON(shortcut->back_pointer != parent);
+		BUG_ON(slot != -1 && shortcut->parent_slot != slot);
+		parent = cursor;
+		cursor = shortcut->next_node;
+		slot = -1;
+		BUG_ON(!assoc_array_ptr_is_node(cursor));
+	}
+
+	pr_devel("[%d] node\n", slot);
+	node = assoc_array_ptr_to_node(cursor);
+	BUG_ON(node->back_pointer != parent);
+	BUG_ON(slot != -1 && node->parent_slot != slot);
+	slot = 0;
+
+continue_node:
+	pr_devel("Node %p [back=%p]\n", node, node->back_pointer);
+	for (; slot < ASSOC_ARRAY_FAN_OUT; slot++) {
+		struct assoc_array_ptr *ptr = node->slots[slot];
+		if (!ptr)
+			continue;
+		if (assoc_array_ptr_is_meta(ptr)) {
+			parent = cursor;
+			cursor = ptr;
+			goto move_to_meta;
+		}
+
+		if (ops) {
+			pr_devel("[%d] free leaf\n", slot);
+			ops->free_object(assoc_array_ptr_to_leaf(ptr));
+		}
+	}
+
+	parent = node->back_pointer;
+	slot = node->parent_slot;
+	pr_devel("free node\n");
+	kfree(node);
+	if (!parent)
+		return; /* Done */
+
+	/* Move back up to the parent (may need to free a shortcut on
+	 * the way up) */
+	if (assoc_array_ptr_is_shortcut(parent)) {
+		shortcut = assoc_array_ptr_to_shortcut(parent);
+		BUG_ON(shortcut->next_node != cursor);
+		cursor = parent;
+		parent = shortcut->back_pointer;
+		slot = shortcut->parent_slot;
+		pr_devel("free shortcut\n");
+		kfree(shortcut);
+		if (!parent)
+			return;
+
+		BUG_ON(!assoc_array_ptr_is_node(parent));
+	}
+
+	/* Ascend to next slot in parent node */
+	pr_devel("ascend to %p[%d]\n", parent, slot);
+	cursor = parent;
+	node = assoc_array_ptr_to_node(cursor);
+	slot++;
+	goto continue_node;
+}
+
+/**
+ * assoc_array_destroy - Destroy an associative array
+ * @array: The array to destroy.
+ * @ops: The operations to use.
+ *
+ * Discard all metadata and free all objects in an associative array.  The
+ * array will be empty and ready to use again upon completion.  This function
+ * cannot fail.
+ *
+ * The caller must prevent all other accesses whilst this takes place as no
+ * attempt is made to adjust pointers gracefully to permit RCU readlock-holding
+ * accesses to continue.  On the other hand, no memory allocation is required.
+ */
+void assoc_array_destroy(struct assoc_array *array,
+			 const struct assoc_array_ops *ops)
+{
+	assoc_array_destroy_subtree(array->root, ops);
+	array->root = NULL;
+}
+
+/*
+ * Handle insertion into an empty tree.
+ */
+static bool assoc_array_insert_in_empty_tree(struct assoc_array_edit *edit)
+{
+	struct assoc_array_node *new_n0;
+
+	pr_devel("-->%s()\n", __func__);
+
+	new_n0 = kzalloc(sizeof(struct assoc_array_node), GFP_KERNEL);
+	if (!new_n0)
+		return false;
+
+	edit->new_meta[0] = assoc_array_node_to_ptr(new_n0);
+	edit->leaf_p = &new_n0->slots[0];
+	edit->adjust_count_on = new_n0;
+	edit->set[0].ptr = &edit->array->root;
+	edit->set[0].to = assoc_array_node_to_ptr(new_n0);
+
+	pr_devel("<--%s() = ok [no root]\n", __func__);
+	return true;
+}
+
+/*
+ * Handle insertion into a terminal node.
+ */
+static bool assoc_array_insert_into_terminal_node(struct assoc_array_edit *edit,
+						  const struct assoc_array_ops *ops,
+						  const void *index_key,
+						  struct assoc_array_walk_result *result)
+{
+	struct assoc_array_shortcut *shortcut, *new_s0;
+	struct assoc_array_node *node, *new_n0, *new_n1, *side;
+	struct assoc_array_ptr *ptr;
+	unsigned long dissimilarity, base_seg, blank;
+	size_t keylen;
+	bool have_meta;
+	int level, diff;
+	int slot, next_slot, free_slot, i, j;
+
+	node	= result->terminal_node.node;
+	level	= result->terminal_node.level;
+	edit->segment_cache[ASSOC_ARRAY_FAN_OUT] = result->terminal_node.slot;
+
+	pr_devel("-->%s()\n", __func__);
+
+	/* We arrived at a node which doesn't have an onward node or shortcut
+	 * pointer that we have to follow.  This means that (a) the leaf we
+	 * want must go here (either by insertion or replacement) or (b) we
+	 * need to split this node and insert in one of the fragments.
+	 */
+	free_slot = -1;
+
+	/* Firstly, we have to check the leaves in this node to see if there's
+	 * a matching one we should replace in place.
+	 */
+	for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
+		ptr = node->slots[i];
+		if (!ptr) {
+			free_slot = i;
+			continue;
+		}
+		if (ops->compare_object(assoc_array_ptr_to_leaf(ptr), index_key)) {
+			pr_devel("replace in slot %d\n", i);
+			edit->leaf_p = &node->slots[i];
+			edit->dead_leaf = node->slots[i];
+			pr_devel("<--%s() = ok [replace]\n", __func__);
+			return true;
+		}
+	}
+
+	/* If there is a free slot in this node then we can just insert the
+	 * leaf here.
+	 */
+	if (free_slot >= 0) {
+		pr_devel("insert in free slot %d\n", free_slot);
+		edit->leaf_p = &node->slots[free_slot];
+		edit->adjust_count_on = node;
+		pr_devel("<--%s() = ok [insert]\n", __func__);
+		return true;
+	}
+
+	/* The node has no spare slots - so we're either going to have to split
+	 * it or insert another node before it.
+	 *
+	 * Whatever, we're going to need at least two new nodes - so allocate
+	 * those now.  We may also need a new shortcut, but we deal with that
+	 * when we need it.
+	 */
+	new_n0 = kzalloc(sizeof(struct assoc_array_node), GFP_KERNEL);
+	if (!new_n0)
+		return false;
+	edit->new_meta[0] = assoc_array_node_to_ptr(new_n0);
+	new_n1 = kzalloc(sizeof(struct assoc_array_node), GFP_KERNEL);
+	if (!new_n1)
+		return false;
+	edit->new_meta[1] = assoc_array_node_to_ptr(new_n1);
+
+	/* We need to find out how similar the leaves are. */
+	pr_devel("no spare slots\n");
+	have_meta = false;
+	for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
+		ptr = node->slots[i];
+		if (assoc_array_ptr_is_meta(ptr)) {
+			edit->segment_cache[i] = 0xff;
+			have_meta = true;
+			continue;
+		}
+		base_seg = ops->get_object_key_chunk(
+			assoc_array_ptr_to_leaf(ptr), level);
+		base_seg >>= level & ASSOC_ARRAY_KEY_CHUNK_MASK;
+		edit->segment_cache[i] = base_seg & ASSOC_ARRAY_FAN_MASK;
+	}
+
+	if (have_meta) {
+		pr_devel("have meta\n");
+		goto split_node;
+	}
+
+	/* The node contains only leaves */
+	dissimilarity = 0;
+	base_seg = edit->segment_cache[0];
+	for (i = 1; i < ASSOC_ARRAY_FAN_OUT; i++)
+		dissimilarity |= edit->segment_cache[i] ^ base_seg;
+
+	pr_devel("only leaves; dissimilarity=%lx\n", dissimilarity);
+
+	if ((dissimilarity & ASSOC_ARRAY_FAN_MASK) == 0) {
+		/* The old leaves all cluster in the same slot.  We will need
+		 * to insert a shortcut if the new node wants to cluster with them.
+		 */
+		if ((edit->segment_cache[ASSOC_ARRAY_FAN_OUT] ^ base_seg) == 0)
+			goto all_leaves_cluster_together;
+
+		/* Otherwise we can just insert a new node ahead of the old
+		 * one.
+		 */
+		goto present_leaves_cluster_but_not_new_leaf;
+	}
+
+split_node:
+	pr_devel("split node\n");
+
+	/* We need to split the current node; we know that the node doesn't
+	 * simply contain a full set of leaves that cluster together (it
+	 * contains meta pointers and/or non-clustering leaves).
+	 *
+	 * We need to expel at least two leaves out of a set consisting of the
+	 * leaves in the node and the new leaf.
+	 *
+	 * We need a new node (n0) to replace the current one and a new node to
+	 * take the expelled nodes (n1).
+	 */
+	edit->set[0].to = assoc_array_node_to_ptr(new_n0);
+	new_n0->back_pointer = node->back_pointer;
+	new_n0->parent_slot = node->parent_slot;
+	new_n1->back_pointer = assoc_array_node_to_ptr(new_n0);
+	new_n1->parent_slot = -1; /* Need to calculate this */
+
+do_split_node:
+	pr_devel("do_split_node\n");
+
+	new_n0->nr_leaves_on_branch = node->nr_leaves_on_branch;
+	new_n1->nr_leaves_on_branch = 0;
+
+	/* Begin by finding two matching leaves.  There have to be at least two
+	 * that match - even if there are meta pointers - because any leaf that
+	 * would match a slot with a meta pointer in it must be somewhere
+	 * behind that meta pointer and cannot be here.  Further, given N
+	 * remaining leaf slots, we now have N+1 leaves to go in them.
+	 */
+	for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
+		slot = edit->segment_cache[i];
+		if (slot != 0xff)
+			for (j = i + 1; j < ASSOC_ARRAY_FAN_OUT + 1; j++)
+				if (edit->segment_cache[j] == slot)
+					goto found_slot_for_multiple_occupancy;
+	}
+found_slot_for_multiple_occupancy:
+	pr_devel("same slot: %x %x [%02x]\n", i, j, slot);
+	BUG_ON(i >= ASSOC_ARRAY_FAN_OUT);
+	BUG_ON(j >= ASSOC_ARRAY_FAN_OUT + 1);
+	BUG_ON(slot >= ASSOC_ARRAY_FAN_OUT);
+
+	new_n1->parent_slot = slot;
+
+	/* Metadata pointers cannot change slot */
+	for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++)
+		if (assoc_array_ptr_is_meta(node->slots[i]))
+			new_n0->slots[i] = node->slots[i];
+		else
+			new_n0->slots[i] = NULL;
+	BUG_ON(new_n0->slots[slot] != NULL);
+	new_n0->slots[slot] = assoc_array_node_to_ptr(new_n1);
+
+	/* Filter the leaf pointers between the new nodes */
+	free_slot = -1;
+	next_slot = 0;
+	for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
+		if (assoc_array_ptr_is_meta(node->slots[i]))
+			continue;
+		if (edit->segment_cache[i] == slot) {
+			new_n1->slots[next_slot++] = node->slots[i];
+			new_n1->nr_leaves_on_branch++;
+		} else {
+			do {
+				free_slot++;
+			} while (new_n0->slots[free_slot] != NULL);
+			new_n0->slots[free_slot] = node->slots[i];
+		}
+	}
+
+	pr_devel("filtered: f=%x n=%x\n", free_slot, next_slot);
+
+	if (edit->segment_cache[ASSOC_ARRAY_FAN_OUT] != slot) {
+		do {
+			free_slot++;
+		} while (new_n0->slots[free_slot] != NULL);
+		edit->leaf_p = &new_n0->slots[free_slot];
+		edit->adjust_count_on = new_n0;
+	} else {
+		edit->leaf_p = &new_n1->slots[next_slot++];
+		edit->adjust_count_on = new_n1;
+	}
+
+	BUG_ON(next_slot <= 1);
+
+	edit->set_backpointers_to = assoc_array_node_to_ptr(new_n0);
+	for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
+		if (edit->segment_cache[i] == 0xff) {
+			ptr = node->slots[i];
+			BUG_ON(assoc_array_ptr_is_leaf(ptr));
+			if (assoc_array_ptr_is_node(ptr)) {
+				side = assoc_array_ptr_to_node(ptr);
+				edit->set_backpointers[i] = &side->back_pointer;
+			} else {
+				shortcut = assoc_array_ptr_to_shortcut(ptr);
+				edit->set_backpointers[i] = &shortcut->back_pointer;
+			}
+		}
+	}
+
+	ptr = node->back_pointer;
+	if (!ptr)
+		edit->set[0].ptr = &edit->array->root;
+	else if (assoc_array_ptr_is_node(ptr))
+		edit->set[0].ptr = &assoc_array_ptr_to_node(ptr)->slots[node->parent_slot];
+	else
+		edit->set[0].ptr = &assoc_array_ptr_to_shortcut(ptr)->next_node;
+	edit->excised_meta[0] = assoc_array_node_to_ptr(node);
+	pr_devel("<--%s() = ok [split node]\n", __func__);
+	return true;
+
+present_leaves_cluster_but_not_new_leaf:
+	/* All the old leaves cluster in the same slot, but the new leaf wants
+	 * to go into a different slot, so we create a new node to hold the new
+	 * leaf and a pointer to a new node holding all the old leaves.
+	 */
+	pr_devel("present leaves cluster but not new leaf\n");
+
+	new_n0->back_pointer = node->back_pointer;
+	new_n0->parent_slot = node->parent_slot;
+	new_n0->nr_leaves_on_branch = node->nr_leaves_on_branch;
+	new_n1->back_pointer = assoc_array_node_to_ptr(new_n0);
+	new_n1->parent_slot = edit->segment_cache[0];
+	new_n1->nr_leaves_on_branch = node->nr_leaves_on_branch;
+	edit->adjust_count_on = new_n0;
+
+	for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++)
+		new_n1->slots[i] = node->slots[i];
+
+	new_n0->slots[edit->segment_cache[0]] = assoc_array_node_to_ptr(new_n0);
+	edit->leaf_p = &new_n0->slots[edit->segment_cache[ASSOC_ARRAY_FAN_OUT]];
+
+	edit->set[0].ptr = &assoc_array_ptr_to_node(node->back_pointer)->slots[node->parent_slot];
+	edit->set[0].to = assoc_array_node_to_ptr(new_n0);
+	edit->excised_meta[0] = assoc_array_node_to_ptr(node);
+	pr_devel("<--%s() = ok [insert node before]\n", __func__);
+	return true;
+
+all_leaves_cluster_together:
+	/* All the leaves, new and old, want to cluster together in this node
+	 * in the same slot, so we have to replace this node with a shortcut to
+	 * skip over the identical parts of the key and then place a pair of
+	 * nodes, one inside the other, at the end of the shortcut and
+	 * distribute the keys between them.
+	 *
+	 * Firstly we need to work out where the leaves start diverging as a
+	 * bit position into their keys so that we know how big the shortcut
+	 * needs to be.
+	 *
+	 * We only need to make a single pass of N of the N+1 leaves because if
+	 * any keys differ between themselves at bit X then at least one of
+	 * them must also differ with the base key at bit X or before.
+	 */
+	pr_devel("all leaves cluster together\n");
+	diff = INT_MAX;
+	for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
+		int x = ops->diff_objects(assoc_array_ptr_to_leaf(edit->leaf),
+					  assoc_array_ptr_to_leaf(node->slots[i]));
+		if (x < diff) {
+			BUG_ON(x < 0);
+			diff = x;
+		}
+	}
+	BUG_ON(diff == INT_MAX);
+	BUG_ON(diff < level + ASSOC_ARRAY_LEVEL_STEP);
+
+	keylen = round_up(diff, ASSOC_ARRAY_KEY_CHUNK_SIZE);
+	keylen >>= ASSOC_ARRAY_KEY_CHUNK_SHIFT;
+
+	new_s0 = kzalloc(sizeof(struct assoc_array_shortcut) +
+			 keylen * sizeof(unsigned long), GFP_KERNEL);
+	if (!new_s0)
+		return false;
+	edit->new_meta[2] = assoc_array_shortcut_to_ptr(new_s0);
+
+	edit->set[0].to = assoc_array_shortcut_to_ptr(new_s0);
+	new_s0->back_pointer = node->back_pointer;
+	new_s0->parent_slot = node->parent_slot;
+	new_s0->next_node = assoc_array_node_to_ptr(new_n0);
+	new_n0->back_pointer = assoc_array_shortcut_to_ptr(new_s0);
+	new_n0->parent_slot = 0;
+	new_n1->back_pointer = assoc_array_node_to_ptr(new_n0);
+	new_n1->parent_slot = -1; /* Need to calculate this */
+
+	new_s0->skip_to_level = level = diff & ~ASSOC_ARRAY_LEVEL_STEP_MASK;
+	pr_devel("skip_to_level = %d [diff %d]\n", level, diff);
+	BUG_ON(level <= 0);
+
+	for (i = 0; i < keylen; i++)
+		new_s0->index_key[i] =
+			ops->get_key_chunk(index_key, i * ASSOC_ARRAY_KEY_CHUNK_SIZE);
+
+	blank = ULONG_MAX << (level & ASSOC_ARRAY_KEY_CHUNK_MASK);
+	pr_devel("blank off [%zu] %d: %lx\n", keylen - 1, level, blank);
+	new_s0->index_key[keylen - 1] &= ~blank;
+
+	/* This now reduces to a node splitting exercise for which we'll need
+	 * to regenerate the disparity table.
+	 */
+	for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
+		ptr = node->slots[i];
+		base_seg = ops->get_object_key_chunk(assoc_array_ptr_to_leaf(ptr),
+						     level);
+		base_seg >>= level & ASSOC_ARRAY_KEY_CHUNK_MASK;
+		edit->segment_cache[i] = base_seg & ASSOC_ARRAY_FAN_MASK;
+	}
+
+	base_seg = ops->get_key_chunk(index_key, level);
+	base_seg >>= level & ASSOC_ARRAY_KEY_CHUNK_MASK;
+	edit->segment_cache[ASSOC_ARRAY_FAN_OUT] = base_seg & ASSOC_ARRAY_FAN_MASK;
+	goto do_split_node;
+}
+
+/*
+ * Handle insertion into the middle of a shortcut.
+ */
+static bool assoc_array_insert_mid_shortcut(struct assoc_array_edit *edit,
+					    const struct assoc_array_ops *ops,
+					    struct assoc_array_walk_result *result)
+{
+	struct assoc_array_shortcut *shortcut, *new_s0, *new_s1;
+	struct assoc_array_node *node, *new_n0, *side;
+	unsigned long sc_segments, dissimilarity, blank;
+	size_t keylen;
+	int level, sc_level, diff;
+	int sc_slot;
+
+	shortcut	= result->wrong_shortcut.shortcut;
+	level		= result->wrong_shortcut.level;
+	sc_level	= result->wrong_shortcut.sc_level;
+	sc_segments	= result->wrong_shortcut.sc_segments;
+	dissimilarity	= result->wrong_shortcut.dissimilarity;
+
+	pr_devel("-->%s(ix=%d dis=%lx scix=%d)\n",
+		 __func__, level, dissimilarity, sc_level);
+
+	/* We need to split a shortcut and insert a node between the two
+	 * pieces.  Zero-length pieces will be dispensed with entirely.
+	 *
+	 * First of all, we need to find out in which level the first
+	 * difference was.
+	 */
+	diff = __ffs(dissimilarity);
+	diff &= ~ASSOC_ARRAY_LEVEL_STEP_MASK;
+	diff += sc_level & ~ASSOC_ARRAY_KEY_CHUNK_MASK;
+	pr_devel("diff=%d\n", diff);
+
+	if (!shortcut->back_pointer) {
+		edit->set[0].ptr = &edit->array->root;
+	} else if (assoc_array_ptr_is_node(shortcut->back_pointer)) {
+		node = assoc_array_ptr_to_node(shortcut->back_pointer);
+		edit->set[0].ptr = &node->slots[shortcut->parent_slot];
+	} else {
+		BUG();
+	}
+
+	edit->excised_meta[0] = assoc_array_shortcut_to_ptr(shortcut);
+
+	/* Create a new node now since we're going to need it anyway */
+	new_n0 = kzalloc(sizeof(struct assoc_array_node), GFP_KERNEL);
+	if (!new_n0)
+		return false;
+	edit->new_meta[0] = assoc_array_node_to_ptr(new_n0);
+	edit->adjust_count_on = new_n0;
+
+	/* Insert a new shortcut before the new node if this segment isn't of
+	 * zero length - otherwise we just connect the new node directly to the
+	 * parent.
+	 */
+	level += ASSOC_ARRAY_LEVEL_STEP;
+	if (diff > level) {
+		pr_devel("pre-shortcut %d...%d\n", level, diff);
+		keylen = round_up(diff, ASSOC_ARRAY_KEY_CHUNK_SIZE);
+		keylen >>= ASSOC_ARRAY_KEY_CHUNK_SHIFT;
+
+		new_s0 = kzalloc(sizeof(struct assoc_array_shortcut) +
+				 keylen * sizeof(unsigned long), GFP_KERNEL);
+		if (!new_s0)
+			return false;
+		edit->new_meta[1] = assoc_array_shortcut_to_ptr(new_s0);
+		edit->set[0].to = assoc_array_shortcut_to_ptr(new_s0);
+		new_s0->back_pointer = shortcut->back_pointer;
+		new_s0->parent_slot = shortcut->parent_slot;
+		new_s0->next_node = assoc_array_node_to_ptr(new_n0);
+		new_s0->skip_to_level = diff;
+
+		new_n0->back_pointer = assoc_array_shortcut_to_ptr(new_s0);
+		new_n0->parent_slot = 0;
+
+		memcpy(new_s0->index_key, shortcut->index_key,
+		       keylen * sizeof(unsigned long));
+
+		blank = ULONG_MAX << (diff & ASSOC_ARRAY_KEY_CHUNK_MASK);
+		pr_devel("blank off [%zu] %d: %lx\n", keylen - 1, diff, blank);
+		new_s0->index_key[keylen - 1] &= ~blank;
+	} else {
+		pr_devel("no pre-shortcut\n");
+		edit->set[0].to = assoc_array_node_to_ptr(new_n0);
+		new_n0->back_pointer = shortcut->back_pointer;
+		new_n0->parent_slot = shortcut->parent_slot;
+	}
+
+	side = assoc_array_ptr_to_node(shortcut->next_node);
+	new_n0->nr_leaves_on_branch = side->nr_leaves_on_branch;
+
+	/* We need to know which slot in the new node is going to take a
+	 * metadata pointer.
+	 */
+	sc_slot = sc_segments >> (diff & ASSOC_ARRAY_KEY_CHUNK_MASK);
+	sc_slot &= ASSOC_ARRAY_FAN_MASK;
+
+	pr_devel("new slot %lx >> %d -> %d\n",
+		 sc_segments, diff & ASSOC_ARRAY_KEY_CHUNK_MASK, sc_slot);
+
+	/* Determine whether we need to follow the new node with a replacement
+	 * for the current shortcut.  We could in theory reuse the current
+	 * shortcut if its parent slot number doesn't change - but that's a
+	 * 1-in-16 chance so not worth expending the code upon.
+	 */
+	level = diff + ASSOC_ARRAY_LEVEL_STEP;
+	if (level < shortcut->skip_to_level) {
+		pr_devel("post-shortcut %d...%d\n", level, shortcut->skip_to_level);
+		keylen = round_up(shortcut->skip_to_level, ASSOC_ARRAY_KEY_CHUNK_SIZE);
+		keylen >>= ASSOC_ARRAY_KEY_CHUNK_SHIFT;
+
+		new_s1 = kzalloc(sizeof(struct assoc_array_shortcut) +
+				 keylen * sizeof(unsigned long), GFP_KERNEL);
+		if (!new_s1)
+			return false;
+		edit->new_meta[2] = assoc_array_shortcut_to_ptr(new_s1);
+
+		new_s1->back_pointer = assoc_array_node_to_ptr(new_n0);
+		new_s1->parent_slot = sc_slot;
+		new_s1->next_node = shortcut->next_node;
+		new_s1->skip_to_level = shortcut->skip_to_level;
+
+		new_n0->slots[sc_slot] = assoc_array_shortcut_to_ptr(new_s1);
+
+		memcpy(new_s1->index_key, shortcut->index_key,
+		       keylen * sizeof(unsigned long));
+
+		edit->set[1].ptr = &side->back_pointer;
+		edit->set[1].to = assoc_array_shortcut_to_ptr(new_s1);
+	} else {
+		pr_devel("no post-shortcut\n");
+
+		/* We don't have to replace the pointed-to node as long as we
+		 * use memory barriers to make sure the parent slot number is
+		 * changed before the back pointer (the parent slot number is
+		 * irrelevant to the old parent shortcut).
+		 */
+		new_n0->slots[sc_slot] = shortcut->next_node;
+		edit->set_parent_slot[0].p = &side->parent_slot;
+		edit->set_parent_slot[0].to = sc_slot;
+		edit->set[1].ptr = &side->back_pointer;
+		edit->set[1].to = assoc_array_node_to_ptr(new_n0);
+	}
+
+	/* Install the new leaf in a spare slot in the new node. */
+	if (sc_slot == 0)
+		edit->leaf_p = &new_n0->slots[1];
+	else
+		edit->leaf_p = &new_n0->slots[0];
+
+	pr_devel("<--%s() = ok [split shortcut]\n", __func__);
+	return edit;
+}
+
+/**
+ * assoc_array_insert - Script insertion of an object into an associative array
+ * @array: The array to insert into.
+ * @ops: The operations to use.
+ * @index_key: The key to insert at.
+ * @object: The object to insert.
+ *
+ * Precalculate and preallocate a script for the insertion or replacement of an
+ * object in an associative array.  This results in an edit script that can
+ * either be applied or cancelled.
+ *
+ * The function returns a pointer to an edit script or -ENOMEM.
+ *
+ * The caller should lock against other modifications and must continue to hold
+ * the lock until assoc_array_apply_edit() has been called.
+ *
+ * Accesses to the tree may take place concurrently with this function,
+ * provided they hold the RCU read lock.
+ */
+struct assoc_array_edit *assoc_array_insert(struct assoc_array *array,
+					    const struct assoc_array_ops *ops,
+					    const void *index_key,
+					    void *object)
+{
+	struct assoc_array_walk_result result;
+	struct assoc_array_edit *edit;
+
+	pr_devel("-->%s()\n", __func__);
+
+	/* The leaf pointer we're given must not have the bottom bit set as we
+	 * use those for type-marking the pointer.  NULL pointers are also not
+	 * allowed as they indicate an empty slot but we have to allow them
+	 * here as they can be updated later.
+	 */
+	BUG_ON(assoc_array_ptr_is_meta(object));
+
+	edit = kzalloc(sizeof(struct assoc_array_edit), GFP_KERNEL);
+	if (!edit)
+		return ERR_PTR(-ENOMEM);
+	edit->array = array;
+	edit->ops = ops;
+	edit->leaf = assoc_array_leaf_to_ptr(object);
+	edit->adjust_count_by = 1;
+
+	switch (assoc_array_walk(array, ops, index_key, &result)) {
+	case assoc_array_walk_tree_empty:
+		/* Allocate a root node if there isn't one yet */
+		if (!assoc_array_insert_in_empty_tree(edit))
+			goto enomem;
+		return edit;
+
+	case assoc_array_walk_found_terminal_node:
+		/* We found a node that doesn't have a node/shortcut pointer in
+		 * the slot corresponding to the index key that we have to
+		 * follow.
+		 */
+		if (!assoc_array_insert_into_terminal_node(edit, ops, index_key,
+							   &result))
+			goto enomem;
+		return edit;
+
+	case assoc_array_walk_found_wrong_shortcut:
+		/* We found a shortcut that didn't match our key in a slot we
+		 * needed to follow.
+		 */
+		if (!assoc_array_insert_mid_shortcut(edit, ops, &result))
+			goto enomem;
+		return edit;
+	}
+
+enomem:
+	/* Clean up after an out of memory error */
+	pr_devel("enomem\n");
+	assoc_array_cancel_edit(edit);
+	return ERR_PTR(-ENOMEM);
+}
+
+/**
+ * assoc_array_insert_set_object - Set the new object pointer in an edit script
+ * @edit: The edit script to modify.
+ * @object: The object pointer to set.
+ *
+ * Change the object to be inserted in an edit script.  The object pointed to
+ * by the old object is not freed.  This must be done prior to applying the
+ * script.
+ */
+void assoc_array_insert_set_object(struct assoc_array_edit *edit, void *object)
+{
+	BUG_ON(!object);
+	edit->leaf = assoc_array_leaf_to_ptr(object);
+}
+
+struct assoc_array_delete_collapse_context {
+	struct assoc_array_node	*node;
+	const void		*skip_leaf;
+	int			slot;
+};
+
+/*
+ * Subtree collapse to node iterator.
+ */
+static int assoc_array_delete_collapse_iterator(const void *leaf,
+						void *iterator_data)
+{
+	struct assoc_array_delete_collapse_context *collapse = iterator_data;
+
+	if (leaf == collapse->skip_leaf)
+		return 0;
+
+	BUG_ON(collapse->slot >= ASSOC_ARRAY_FAN_OUT);
+
+	collapse->node->slots[collapse->slot++] = assoc_array_leaf_to_ptr(leaf);
+	return 0;
+}
+
+/**
+ * assoc_array_delete - Script deletion of an object from an associative array
+ * @array: The array to search.
+ * @ops: The operations to use.
+ * @index_key: The key to the object.
+ *
+ * Precalculate and preallocate a script for the deletion of an object from an
+ * associative array.  This results in an edit script that can either be
+ * applied or cancelled.
+ *
+ * The function returns a pointer to an edit script if the object was found,
+ * NULL if the object was not found or -ENOMEM.
+ *
+ * The caller should lock against other modifications and must continue to hold
+ * the lock until assoc_array_apply_edit() has been called.
+ *
+ * Accesses to the tree may take place concurrently with this function,
+ * provided they hold the RCU read lock.
+ */
+struct assoc_array_edit *assoc_array_delete(struct assoc_array *array,
+					    const struct assoc_array_ops *ops,
+					    const void *index_key)
+{
+	struct assoc_array_delete_collapse_context collapse;
+	struct assoc_array_walk_result result;
+	struct assoc_array_node *node, *new_n0;
+	struct assoc_array_edit *edit;
+	struct assoc_array_ptr *ptr;
+	bool has_meta;
+	int slot, i;
+
+	pr_devel("-->%s()\n", __func__);
+
+	edit = kzalloc(sizeof(struct assoc_array_edit), GFP_KERNEL);
+	if (!edit)
+		return ERR_PTR(-ENOMEM);
+	edit->array = array;
+	edit->ops = ops;
+	edit->adjust_count_by = -1;
+
+	switch (assoc_array_walk(array, ops, index_key, &result)) {
+	case assoc_array_walk_found_terminal_node:
+		/* We found a node that should contain the leaf we've been
+		 * asked to remove - *if* it's in the tree.
+		 */
+		pr_devel("terminal_node\n");
+		node = result.terminal_node.node;
+
+		for (slot = 0; slot < ASSOC_ARRAY_FAN_OUT; slot++) {
+			ptr = node->slots[slot];
+			if (ptr &&
+			    assoc_array_ptr_is_leaf(ptr) &&
+			    ops->compare_object(assoc_array_ptr_to_leaf(ptr),
+						index_key))
+				goto found_leaf;
+		}
+	case assoc_array_walk_tree_empty:
+	case assoc_array_walk_found_wrong_shortcut:
+	default:
+		assoc_array_cancel_edit(edit);
+		pr_devel("not found\n");
+		return NULL;
+	}
+
+found_leaf:
+	BUG_ON(array->nr_leaves_on_tree <= 0);
+
+	/* In the simplest form of deletion we just clear the slot and release
+	 * the leaf after a suitable interval.
+	 */
+	edit->dead_leaf = node->slots[slot];
+	edit->set[0].ptr = &node->slots[slot];
+	edit->set[0].to = NULL;
+	edit->adjust_count_on = node;
+
+	/* If that concludes erasure of the last leaf, then delete the entire
+	 * internal array.
+	 */
+	if (array->nr_leaves_on_tree == 1) {
+		edit->set[1].ptr = &array->root;
+		edit->set[1].to = NULL;
+		edit->adjust_count_on = NULL;
+		edit->excised_subtree = array->root;
+		pr_devel("all gone\n");
+		return edit;
+	}
+
+	/* However, we'd also like to clear up some metadata blocks if we
+	 * possibly can.
+	 *
+	 * We go for a simple algorithm of: if this node has FAN_OUT or fewer
+	 * leaves in it, then attempt to collapse it - and attempt to
+	 * recursively collapse up the tree.
+	 *
+	 * We could also try and collapse in partially filled subtrees to take
+	 * up space in this node.
+	 */
+	if (node->nr_leaves_on_branch <= ASSOC_ARRAY_FAN_OUT + 1) {
+		struct assoc_array_node *parent, *grandparent;
+		struct assoc_array_ptr *ptr;
+
+		/* First of all, we need to know if this node has metadata so
+		 * that we don't try collapsing if all the leaves are already
+		 * here.
+		 */
+		has_meta = false;
+		for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
+			ptr = node->slots[i];
+			if (assoc_array_ptr_is_meta(ptr)) {
+				has_meta = true;
+				break;
+			}
+		}
+
+		pr_devel("leaves: %ld [m=%d]\n",
+			 node->nr_leaves_on_branch - 1, has_meta);
+
+		/* Look further up the tree to see if we can collapse this node
+		 * into a more proximal node too.
+		 */
+		parent = node;
+	collapse_up:
+		pr_devel("collapse subtree: %ld\n", parent->nr_leaves_on_branch);
+
+		ptr = parent->back_pointer;
+		if (!ptr)
+			goto do_collapse;
+		if (assoc_array_ptr_is_shortcut(ptr)) {
+			struct assoc_array_shortcut *s = assoc_array_ptr_to_shortcut(ptr);
+			ptr = s->back_pointer;
+			if (!ptr)
+				goto do_collapse;
+		}
+
+		grandparent = assoc_array_ptr_to_node(ptr);
+		if (grandparent->nr_leaves_on_branch <= ASSOC_ARRAY_FAN_OUT + 1) {
+			parent = grandparent;
+			goto collapse_up;
+		}
+
+	do_collapse:
+		/* There's no point collapsing if the original node has no meta
+		 * pointers to discard and if we didn't merge into one of that
+		 * node's ancestry.
+		 */
+		if (has_meta || parent != node) {
+			node = parent;
+
+			/* Create a new node to collapse into */
+			new_n0 = kzalloc(sizeof(struct assoc_array_node), GFP_KERNEL);
+			if (!new_n0)
+				goto enomem;
+			edit->new_meta[0] = assoc_array_node_to_ptr(new_n0);
+
+			new_n0->back_pointer = node->back_pointer;
+			new_n0->parent_slot = node->parent_slot;
+			new_n0->nr_leaves_on_branch = node->nr_leaves_on_branch;
+			edit->adjust_count_on = new_n0;
+
+			collapse.node = new_n0;
+			collapse.skip_leaf = assoc_array_ptr_to_leaf(edit->dead_leaf);
+			collapse.slot = 0;
+			assoc_array_subtree_iterate(assoc_array_node_to_ptr(node),
+						    node->back_pointer,
+						    assoc_array_delete_collapse_iterator,
+						    &collapse);
+			pr_devel("collapsed %d,%lu\n", collapse.slot, new_n0->nr_leaves_on_branch);
+			BUG_ON(collapse.slot != new_n0->nr_leaves_on_branch - 1);
+
+			if (!node->back_pointer) {
+				edit->set[1].ptr = &array->root;
+			} else if (assoc_array_ptr_is_leaf(node->back_pointer)) {
+				BUG();
+			} else if (assoc_array_ptr_is_node(node->back_pointer)) {
+				struct assoc_array_node *p =
+					assoc_array_ptr_to_node(node->back_pointer);
+				edit->set[1].ptr = &p->slots[node->parent_slot];
+			} else if (assoc_array_ptr_is_shortcut(node->back_pointer)) {
+				struct assoc_array_shortcut *s =
+					assoc_array_ptr_to_shortcut(node->back_pointer);
+				edit->set[1].ptr = &s->next_node;
+			}
+			edit->set[1].to = assoc_array_node_to_ptr(new_n0);
+			edit->excised_subtree = assoc_array_node_to_ptr(node);
+		}
+	}
+
+	return edit;
+
+enomem:
+	/* Clean up after an out of memory error */
+	pr_devel("enomem\n");
+	assoc_array_cancel_edit(edit);
+	return ERR_PTR(-ENOMEM);
+}
+
+/**
+ * assoc_array_clear - Script deletion of all objects from an associative array
+ * @array: The array to clear.
+ * @ops: The operations to use.
+ *
+ * Precalculate and preallocate a script for the deletion of all the objects
+ * from an associative array.  This results in an edit script that can either
+ * be applied or cancelled.
+ *
+ * The function returns a pointer to an edit script if there are objects to be
+ * deleted, NULL if there are no objects in the array or -ENOMEM.
+ *
+ * The caller should lock against other modifications and must continue to hold
+ * the lock until assoc_array_apply_edit() has been called.
+ *
+ * Accesses to the tree may take place concurrently with this function,
+ * provided they hold the RCU read lock.
+ */
+struct assoc_array_edit *assoc_array_clear(struct assoc_array *array,
+					   const struct assoc_array_ops *ops)
+{
+	struct assoc_array_edit *edit;
+
+	pr_devel("-->%s()\n", __func__);
+
+	if (!array->root)
+		return NULL;
+
+	edit = kzalloc(sizeof(struct assoc_array_edit), GFP_KERNEL);
+	if (!edit)
+		return ERR_PTR(-ENOMEM);
+	edit->array = array;
+	edit->ops = ops;
+	edit->set[1].ptr = &array->root;
+	edit->set[1].to = NULL;
+	edit->excised_subtree = array->root;
+	edit->ops_for_excised_subtree = ops;
+	pr_devel("all gone\n");
+	return edit;
+}
+
+/*
+ * Handle the deferred destruction after an applied edit.
+ */
+static void assoc_array_rcu_cleanup(struct rcu_head *head)
+{
+	struct assoc_array_edit *edit =
+		container_of(head, struct assoc_array_edit, rcu);
+	int i;
+
+	pr_devel("-->%s()\n", __func__);
+
+	if (edit->dead_leaf)
+		edit->ops->free_object(assoc_array_ptr_to_leaf(edit->dead_leaf));
+	for (i = 0; i < ARRAY_SIZE(edit->excised_meta); i++)
+		if (edit->excised_meta[i])
+			kfree(assoc_array_ptr_to_node(edit->excised_meta[i]));
+
+	if (edit->excised_subtree) {
+		BUG_ON(assoc_array_ptr_is_leaf(edit->excised_subtree));
+		if (assoc_array_ptr_is_node(edit->excised_subtree)) {
+			struct assoc_array_node *n =
+				assoc_array_ptr_to_node(edit->excised_subtree);
+			n->back_pointer = NULL;
+		} else {
+			struct assoc_array_shortcut *s =
+				assoc_array_ptr_to_shortcut(edit->excised_subtree);
+			s->back_pointer = NULL;
+		}
+		assoc_array_destroy_subtree(edit->excised_subtree,
+					    edit->ops_for_excised_subtree);
+	}
+
+	kfree(edit);
+}
+
+/**
+ * assoc_array_apply_edit - Apply an edit script to an associative array
+ * @edit: The script to apply.
+ *
+ * Apply an edit script to an associative array to effect an insertion,
+ * deletion or clearance.  As the edit script includes preallocated memory,
+ * this is guaranteed not to fail.
+ *
+ * The edit script, dead objects and dead metadata will be scheduled for
+ * destruction after an RCU grace period to permit those doing read-only
+ * accesses on the array to continue to do so under the RCU read lock whilst
+ * the edit is taking place.
+ */
+void assoc_array_apply_edit(struct assoc_array_edit *edit)
+{
+	struct assoc_array_shortcut *shortcut;
+	struct assoc_array_node *node;
+	struct assoc_array_ptr *ptr;
+	int i;
+
+	pr_devel("-->%s()\n", __func__);
+
+	smp_wmb();
+	if (edit->leaf_p)
+		*edit->leaf_p = edit->leaf;
+
+	smp_wmb();
+	for (i = 0; i < ARRAY_SIZE(edit->set_parent_slot); i++)
+		if (edit->set_parent_slot[i].p)
+			*edit->set_parent_slot[i].p = edit->set_parent_slot[i].to;
+
+	smp_wmb();
+	for (i = 0; i < ARRAY_SIZE(edit->set_backpointers); i++)
+		if (edit->set_backpointers[i])
+			*edit->set_backpointers[i] = edit->set_backpointers_to;
+
+	smp_wmb();
+	for (i = 0; i < ARRAY_SIZE(edit->set); i++)
+		if (edit->set[i].ptr)
+			*edit->set[i].ptr = edit->set[i].to;
+
+	if (edit->array->root == NULL) {
+		edit->array->nr_leaves_on_tree = 0;
+	} else if (edit->adjust_count_on) {
+		node = edit->adjust_count_on;
+		for (;;) {
+			node->nr_leaves_on_branch += edit->adjust_count_by;
+
+			ptr = node->back_pointer;
+			if (!ptr)
+				break;
+			if (assoc_array_ptr_is_shortcut(ptr)) {
+				shortcut = assoc_array_ptr_to_shortcut(ptr);
+				ptr = shortcut->back_pointer;
+				if (!ptr)
+					break;
+			}
+			BUG_ON(!assoc_array_ptr_is_node(ptr));
+			node = assoc_array_ptr_to_node(ptr);
+		}
+
+		edit->array->nr_leaves_on_tree += edit->adjust_count_by;
+	}
+
+	call_rcu(&edit->rcu, assoc_array_rcu_cleanup);
+}
+
+/**
+ * assoc_array_cancel_edit - Discard an edit script.
+ * @edit: The script to discard.
+ *
+ * Free an edit script and all the preallocated data it holds without making
+ * any changes to the associative array it was intended for.
+ *
+ * NOTE!  In the case of an insertion script, this does _not_ release the leaf
+ * that was to be inserted.  That is left to the caller.
+ */
+void assoc_array_cancel_edit(struct assoc_array_edit *edit)
+{
+	struct assoc_array_ptr *ptr;
+	int i;
+
+	pr_devel("-->%s()\n", __func__);
+
+	/* Clean up after an out of memory error */
+	for (i = 0; i < ARRAY_SIZE(edit->new_meta); i++) {
+		ptr = edit->new_meta[i];
+		if (ptr) {
+			if (assoc_array_ptr_is_node(ptr))
+				kfree(assoc_array_ptr_to_node(ptr));
+			else
+				kfree(assoc_array_ptr_to_shortcut(ptr));
+		}
+	}
+	kfree(edit);
+}
+
+/**
+ * assoc_array_gc - Garbage collect an associative array.
+ * @array: The array to clean.
+ * @ops: The operations to use.
+ * @iterator: A callback function to pass judgement on each object.
+ * @iterator_data: Private data for the callback function.
+ *
+ * Collect garbage from an associative array and pack down the internal tree to
+ * save memory.
+ *
+ * The iterator function is asked to pass judgement upon each object in the
+ * array.  If it returns false, the object is discard and if it returns true,
+ * the object is kept.  If it returns true, it must increment the object's
+ * usage count (or whatever it needs to do to retain it) before returning.
+ *
+ * This function returns 0 if successful or -ENOMEM if out of memory.  In the
+ * latter case, the array is not changed.
+ *
+ * The caller should lock against other modifications and must continue to hold
+ * the lock until assoc_array_apply_edit() has been called.
+ *
+ * Accesses to the tree may take place concurrently with this function,
+ * provided they hold the RCU read lock.
+ */
+int assoc_array_gc(struct assoc_array *array,
+		   const struct assoc_array_ops *ops,
+		   bool (*iterator)(void *object, void *iterator_data),
+		   void *iterator_data)
+{
+	struct assoc_array_shortcut *shortcut, *new_s;
+	struct assoc_array_node *node, *new_n;
+	struct assoc_array_edit *edit;
+	struct assoc_array_ptr *cursor, *ptr;
+	struct assoc_array_ptr *new_root, *new_parent, **new_ptr_pp;
+	unsigned long nr_leaves_on_tree;
+	int keylen, slot, nr_free, next_slot, i;
+
+	pr_devel("-->%s()\n", __func__);
+
+	if (!array->root)
+		return 0;
+
+	edit = kzalloc(sizeof(struct assoc_array_edit), GFP_KERNEL);
+	if (!edit)
+		return -ENOMEM;
+	edit->array = array;
+	edit->ops = ops;
+	edit->ops_for_excised_subtree = ops;
+	edit->set[0].ptr = &array->root;
+	edit->excised_subtree = array->root;
+
+	new_root = new_parent = NULL;
+	new_ptr_pp = &new_root;
+	cursor = array->root;
+
+descend:
+	/* If this point is a shortcut, then we need to duplicate it and
+	 * advance the target cursor.
+	 */
+	if (assoc_array_ptr_is_shortcut(cursor)) {
+		shortcut = assoc_array_ptr_to_shortcut(cursor);
+		keylen = round_up(shortcut->skip_to_level, ASSOC_ARRAY_KEY_CHUNK_SIZE);
+		keylen >>= ASSOC_ARRAY_KEY_CHUNK_SHIFT;
+		new_s = kmalloc(sizeof(struct assoc_array_shortcut) +
+				keylen * sizeof(unsigned long), GFP_KERNEL);
+		if (!new_s)
+			goto enomem;
+		pr_devel("dup shortcut %p -> %p\n", shortcut, new_s);
+		memcpy(new_s, shortcut, (sizeof(struct assoc_array_shortcut) +
+					 keylen * sizeof(unsigned long)));
+		new_s->back_pointer = new_parent;
+		new_s->parent_slot = shortcut->parent_slot;
+		*new_ptr_pp = new_parent = assoc_array_shortcut_to_ptr(new_s);
+		new_ptr_pp = &new_s->next_node;
+		cursor = shortcut->next_node;
+	}
+
+	/* Duplicate the node at this position */
+	node = assoc_array_ptr_to_node(cursor);
+	new_n = kzalloc(sizeof(struct assoc_array_node), GFP_KERNEL);
+	if (!new_n)
+		goto enomem;
+	pr_devel("dup node %p -> %p\n", node, new_n);
+	new_n->back_pointer = new_parent;
+	new_n->parent_slot = node->parent_slot;
+	*new_ptr_pp = new_parent = assoc_array_node_to_ptr(new_n);
+	new_ptr_pp = NULL;
+	slot = 0;
+
+continue_node:
+	/* Filter across any leaves and gc any subtrees */
+	for (; slot < ASSOC_ARRAY_FAN_OUT; slot++) {
+		ptr = node->slots[slot];
+		if (!ptr)
+			continue;
+
+		if (assoc_array_ptr_is_leaf(ptr)) {
+			if (iterator(assoc_array_ptr_to_leaf(ptr),
+				     iterator_data))
+				/* The iterator will have done any reference
+				 * counting on the object for us.
+				 */
+				new_n->slots[slot] = ptr;
+			continue;
+		}
+
+		new_ptr_pp = &new_n->slots[slot];
+		cursor = ptr;
+		goto descend;
+	}
+
+	pr_devel("-- compress node %p --\n", new_n);
+
+	/* Count up the number of empty slots in this node and work out the
+	 * subtree leaf count.
+	 */
+	new_n->nr_leaves_on_branch = 0;
+	nr_free = 0;
+	for (slot = 0; slot < ASSOC_ARRAY_FAN_OUT; slot++) {
+		ptr = new_n->slots[slot];
+		if (!ptr)
+			nr_free++;
+		else if (assoc_array_ptr_is_leaf(ptr))
+			new_n->nr_leaves_on_branch++;
+	}
+	pr_devel("free=%d, leaves=%lu\n", nr_free, new_n->nr_leaves_on_branch);
+
+	/* See what we can fold in */
+	next_slot = 0;
+	for (slot = 0; slot < ASSOC_ARRAY_FAN_OUT; slot++) {
+		struct assoc_array_shortcut *s;
+		struct assoc_array_node *child;
+
+		ptr = new_n->slots[slot];
+		if (!ptr || assoc_array_ptr_is_leaf(ptr))
+			continue;
+
+		s = NULL;
+		if (assoc_array_ptr_is_shortcut(ptr)) {
+			s = assoc_array_ptr_to_shortcut(ptr);
+			ptr = s->next_node;
+		}
+
+		child = assoc_array_ptr_to_node(ptr);
+		new_n->nr_leaves_on_branch += child->nr_leaves_on_branch;
+
+		if (child->nr_leaves_on_branch <= nr_free + 1) {
+			/* Fold the child node into this one */
+			pr_devel("[%d] fold node %lu/%d [nx %d]\n",
+				 slot, child->nr_leaves_on_branch, nr_free + 1,
+				 next_slot);
+
+			/* We would already have reaped an intervening shortcut
+			 * on the way back up the tree.
+			 */
+			BUG_ON(s);
+
+			new_n->slots[slot] = NULL;
+			nr_free++;
+			if (slot < next_slot)
+				next_slot = slot;
+			for (i = 0; i < ASSOC_ARRAY_FAN_OUT; i++) {
+				struct assoc_array_ptr *p = child->slots[i];
+				if (!p)
+					continue;
+				BUG_ON(assoc_array_ptr_is_meta(p));
+				while (new_n->slots[next_slot])
+					next_slot++;
+				BUG_ON(next_slot >= ASSOC_ARRAY_FAN_OUT);
+				new_n->slots[next_slot++] = p;
+				nr_free--;
+			}
+			kfree(child);
+		} else {
+			pr_devel("[%d] retain node %lu/%d [nx %d]\n",
+				 slot, child->nr_leaves_on_branch, nr_free + 1,
+				 next_slot);
+		}
+	}
+
+	pr_devel("after: %lu\n", new_n->nr_leaves_on_branch);
+
+	nr_leaves_on_tree = new_n->nr_leaves_on_branch;
+
+	/* Excise this node if it is singly occupied by a shortcut */
+	if (nr_free == ASSOC_ARRAY_FAN_OUT - 1) {
+		for (slot = 0; slot < ASSOC_ARRAY_FAN_OUT; slot++)
+			if ((ptr = new_n->slots[slot]))
+				break;
+
+		if (assoc_array_ptr_is_meta(ptr) &&
+		    assoc_array_ptr_is_shortcut(ptr)) {
+			pr_devel("excise node %p with 1 shortcut\n", new_n);
+			new_s = assoc_array_ptr_to_shortcut(ptr);
+			new_parent = new_n->back_pointer;
+			slot = new_n->parent_slot;
+			kfree(new_n);
+			if (!new_parent) {
+				new_s->back_pointer = NULL;
+				new_s->parent_slot = 0;
+				new_root = ptr;
+				goto gc_complete;
+			}
+
+			if (assoc_array_ptr_is_shortcut(new_parent)) {
+				/* We can discard any preceding shortcut also */
+				struct assoc_array_shortcut *s =
+					assoc_array_ptr_to_shortcut(new_parent);
+
+				pr_devel("excise preceding shortcut\n");
+
+				new_parent = new_s->back_pointer = s->back_pointer;
+				slot = new_s->parent_slot = s->parent_slot;
+				kfree(s);
+				if (!new_parent) {
+					new_s->back_pointer = NULL;
+					new_s->parent_slot = 0;
+					new_root = ptr;
+					goto gc_complete;
+				}
+			}
+
+			new_s->back_pointer = new_parent;
+			new_s->parent_slot = slot;
+			new_n = assoc_array_ptr_to_node(new_parent);
+			new_n->slots[slot] = ptr;
+			goto ascend_old_tree;
+		}
+	}
+
+	/* Excise any shortcuts we might encounter that point to nodes that
+	 * only contain leaves.
+	 */
+	ptr = new_n->back_pointer;
+	if (!ptr)
+		goto gc_complete;
+
+	if (assoc_array_ptr_is_shortcut(ptr)) {
+		new_s = assoc_array_ptr_to_shortcut(ptr);
+		new_parent = new_s->back_pointer;
+		slot = new_s->parent_slot;
+
+		if (new_n->nr_leaves_on_branch <= ASSOC_ARRAY_FAN_OUT) {
+			struct assoc_array_node *n;
+
+			pr_devel("excise shortcut\n");
+			new_n->back_pointer = new_parent;
+			new_n->parent_slot = slot;
+			kfree(new_s);
+			if (!new_parent) {
+				new_root = assoc_array_node_to_ptr(new_n);
+				goto gc_complete;
+			}
+
+			n = assoc_array_ptr_to_node(new_parent);
+			n->slots[slot] = assoc_array_node_to_ptr(new_n);
+		}
+	} else {
+		new_parent = ptr;
+	}
+	new_n = assoc_array_ptr_to_node(new_parent);
+
+ascend_old_tree:
+	ptr = node->back_pointer;
+	if (assoc_array_ptr_is_shortcut(ptr)) {
+		shortcut = assoc_array_ptr_to_shortcut(ptr);
+		slot = shortcut->parent_slot;
+		cursor = shortcut->back_pointer;
+	} else {
+		slot = node->parent_slot;
+		cursor = ptr;
+	}
+	BUG_ON(!ptr);
+	node = assoc_array_ptr_to_node(cursor);
+	slot++;
+	goto continue_node;
+
+gc_complete:
+	edit->set[0].to = new_root;
+	assoc_array_apply_edit(edit);
+	edit->array->nr_leaves_on_tree = nr_leaves_on_tree;
+	return 0;
+
+enomem:
+	pr_devel("enomem\n");
+	assoc_array_destroy_subtree(new_root, edit->ops);
+	kfree(edit);
+	return -ENOMEM;
+}
-- 
cgit 


From b2a4df200d570b2c33a57e1ebfa5896e4bc81b69 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 24 Sep 2013 10:35:18 +0100
Subject: KEYS: Expand the capacity of a keyring

Expand the capacity of a keyring to be able to hold a lot more keys by using
the previously added associative array implementation.  Currently the maximum
capacity is:

	(PAGE_SIZE - sizeof(header)) / sizeof(struct key *)

which, on a 64-bit system, is a little more 500.  However, since this is being
used for the NFS uid mapper, we need more than that.  The new implementation
gives us effectively unlimited capacity.

With some alterations, the keyutils testsuite runs successfully to completion
after this patch is applied.  The alterations are because (a) keyrings that
are simply added to no longer appear ordered and (b) some of the errors have
changed a bit.

Signed-off-by: David Howells <dhowells@redhat.com>
---
 include/keys/keyring-type.h |   17 +-
 include/linux/key.h         |   13 +-
 lib/assoc_array.c           |    1 +
 security/keys/Kconfig       |    1 +
 security/keys/gc.c          |   33 +-
 security/keys/internal.h    |   17 +-
 security/keys/key.c         |   35 +-
 security/keys/keyring.c     | 1436 ++++++++++++++++++++++---------------------
 security/keys/request_key.c |   12 +-
 9 files changed, 803 insertions(+), 762 deletions(-)

diff --git a/include/keys/keyring-type.h b/include/keys/keyring-type.h
index cf49159b0e3a..fca5c62340a4 100644
--- a/include/keys/keyring-type.h
+++ b/include/keys/keyring-type.h
@@ -1,6 +1,6 @@
 /* Keyring key type
  *
- * Copyright (C) 2008 Red Hat, Inc. All Rights Reserved.
+ * Copyright (C) 2008, 2013 Red Hat, Inc. All Rights Reserved.
  * Written by David Howells (dhowells@redhat.com)
  *
  * This program is free software; you can redistribute it and/or
@@ -13,19 +13,6 @@
 #define _KEYS_KEYRING_TYPE_H
 
 #include <linux/key.h>
-#include <linux/rcupdate.h>
-
-/*
- * the keyring payload contains a list of the keys to which the keyring is
- * subscribed
- */
-struct keyring_list {
-	struct rcu_head	rcu;		/* RCU deletion hook */
-	unsigned short	maxkeys;	/* max keys this list can hold */
-	unsigned short	nkeys;		/* number of keys currently held */
-	unsigned short	delkey;		/* key to be unlinked by RCU */
-	struct key __rcu *keys[0];
-};
-
+#include <linux/assoc_array.h>
 
 #endif /* _KEYS_KEYRING_TYPE_H */
diff --git a/include/linux/key.h b/include/linux/key.h
index ef596c7af585..2417f789d29b 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -22,6 +22,7 @@
 #include <linux/sysctl.h>
 #include <linux/rwsem.h>
 #include <linux/atomic.h>
+#include <linux/assoc_array.h>
 
 #ifdef __KERNEL__
 #include <linux/uidgid.h>
@@ -196,11 +197,13 @@ struct key {
 	 *   whatever
 	 */
 	union {
-		unsigned long		value;
-		void __rcu		*rcudata;
-		void			*data;
-		struct keyring_list __rcu *subscriptions;
-	} payload;
+		union {
+			unsigned long		value;
+			void __rcu		*rcudata;
+			void			*data;
+		} payload;
+		struct assoc_array keys;
+	};
 };
 
 extern struct key *key_alloc(struct key_type *type,
diff --git a/lib/assoc_array.c b/lib/assoc_array.c
index a0952818f938..17edeaf19180 100644
--- a/lib/assoc_array.c
+++ b/lib/assoc_array.c
@@ -12,6 +12,7 @@
  */
 //#define DEBUG
 #include <linux/slab.h>
+#include <linux/err.h>
 #include <linux/assoc_array_priv.h>
 
 /*
diff --git a/security/keys/Kconfig b/security/keys/Kconfig
index a90d6d300dbd..15e0dfe8c80f 100644
--- a/security/keys/Kconfig
+++ b/security/keys/Kconfig
@@ -4,6 +4,7 @@
 
 config KEYS
 	bool "Enable access key retention support"
+	select ASSOCIATIVE_ARRAY
 	help
 	  This option provides support for retaining authentication tokens and
 	  access keys in the kernel.
diff --git a/security/keys/gc.c b/security/keys/gc.c
index d67c97bb1025..cce621c33dce 100644
--- a/security/keys/gc.c
+++ b/security/keys/gc.c
@@ -130,6 +130,13 @@ void key_gc_keytype(struct key_type *ktype)
 	kleave("");
 }
 
+static int key_gc_keyring_func(const void *object, void *iterator_data)
+{
+	const struct key *key = object;
+	time_t *limit = iterator_data;
+	return key_is_dead(key, *limit);
+}
+
 /*
  * Garbage collect pointers from a keyring.
  *
@@ -138,10 +145,9 @@ void key_gc_keytype(struct key_type *ktype)
  */
 static void key_gc_keyring(struct key *keyring, time_t limit)
 {
-	struct keyring_list *klist;
-	int loop;
+	int result;
 
-	kenter("%x", key_serial(keyring));
+	kenter("%x{%s}", keyring->serial, keyring->description ?: "");
 
 	if (keyring->flags & ((1 << KEY_FLAG_INVALIDATED) |
 			      (1 << KEY_FLAG_REVOKED)))
@@ -149,27 +155,17 @@ static void key_gc_keyring(struct key *keyring, time_t limit)
 
 	/* scan the keyring looking for dead keys */
 	rcu_read_lock();
-	klist = rcu_dereference(keyring->payload.subscriptions);
-	if (!klist)
-		goto unlock_dont_gc;
-
-	loop = klist->nkeys;
-	smp_rmb();
-	for (loop--; loop >= 0; loop--) {
-		struct key *key = rcu_dereference(klist->keys[loop]);
-		if (key_is_dead(key, limit))
-			goto do_gc;
-	}
-
-unlock_dont_gc:
+	result = assoc_array_iterate(&keyring->keys,
+				     key_gc_keyring_func, &limit);
 	rcu_read_unlock();
+	if (result == true)
+		goto do_gc;
+
 dont_gc:
 	kleave(" [no gc]");
 	return;
 
 do_gc:
-	rcu_read_unlock();
-
 	keyring_gc(keyring, limit);
 	kleave(" [gc]");
 }
@@ -392,7 +388,6 @@ found_unreferenced_key:
 	 */
 found_keyring:
 	spin_unlock(&key_serial_lock);
-	kdebug("scan keyring %d", key->serial);
 	key_gc_keyring(key, limit);
 	goto maybe_resched;
 
diff --git a/security/keys/internal.h b/security/keys/internal.h
index 73950bf8f875..581c6f688352 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -90,20 +90,23 @@ extern void key_type_put(struct key_type *ktype);
 
 extern int __key_link_begin(struct key *keyring,
 			    const struct keyring_index_key *index_key,
-			    unsigned long *_prealloc);
+			    struct assoc_array_edit **_edit);
 extern int __key_link_check_live_key(struct key *keyring, struct key *key);
-extern void __key_link(struct key *keyring, struct key *key,
-		       unsigned long *_prealloc);
+extern void __key_link(struct key *key, struct assoc_array_edit **_edit);
 extern void __key_link_end(struct key *keyring,
 			   const struct keyring_index_key *index_key,
-			   unsigned long prealloc);
+			   struct assoc_array_edit *edit);
 
-extern key_ref_t __keyring_search_one(key_ref_t keyring_ref,
-				      const struct keyring_index_key *index_key);
+extern key_ref_t find_key_to_update(key_ref_t keyring_ref,
+				    const struct keyring_index_key *index_key);
 
 extern struct key *keyring_search_instkey(struct key *keyring,
 					  key_serial_t target_id);
 
+extern int iterate_over_keyring(const struct key *keyring,
+				int (*func)(const struct key *key, void *data),
+				void *data);
+
 typedef int (*key_match_func_t)(const struct key *, const void *);
 
 struct keyring_search_context {
@@ -119,6 +122,8 @@ struct keyring_search_context {
 #define KEYRING_SEARCH_NO_CHECK_PERM	0x0010	/* Don't check permissions */
 #define KEYRING_SEARCH_DETECT_TOO_DEEP	0x0020	/* Give an error on excessive depth */
 
+	int (*iterator)(const void *object, void *iterator_data);
+
 	/* Internal stuff */
 	int			skipped_ret;
 	bool			possessed;
diff --git a/security/keys/key.c b/security/keys/key.c
index 7d716b82a61e..a819b5c7d4ec 100644
--- a/security/keys/key.c
+++ b/security/keys/key.c
@@ -409,7 +409,7 @@ static int __key_instantiate_and_link(struct key *key,
 				      struct key_preparsed_payload *prep,
 				      struct key *keyring,
 				      struct key *authkey,
-				      unsigned long *_prealloc)
+				      struct assoc_array_edit **_edit)
 {
 	int ret, awaken;
 
@@ -436,7 +436,7 @@ static int __key_instantiate_and_link(struct key *key,
 
 			/* and link it into the destination keyring */
 			if (keyring)
-				__key_link(keyring, key, _prealloc);
+				__key_link(key, _edit);
 
 			/* disable the authorisation key */
 			if (authkey)
@@ -476,7 +476,7 @@ int key_instantiate_and_link(struct key *key,
 			     struct key *authkey)
 {
 	struct key_preparsed_payload prep;
-	unsigned long prealloc;
+	struct assoc_array_edit *edit;
 	int ret;
 
 	memset(&prep, 0, sizeof(prep));
@@ -490,16 +490,15 @@ int key_instantiate_and_link(struct key *key,
 	}
 
 	if (keyring) {
-		ret = __key_link_begin(keyring, &key->index_key, &prealloc);
+		ret = __key_link_begin(keyring, &key->index_key, &edit);
 		if (ret < 0)
 			goto error_free_preparse;
 	}
 
-	ret = __key_instantiate_and_link(key, &prep, keyring, authkey,
-					 &prealloc);
+	ret = __key_instantiate_and_link(key, &prep, keyring, authkey, &edit);
 
 	if (keyring)
-		__key_link_end(keyring, &key->index_key, prealloc);
+		__key_link_end(keyring, &key->index_key, edit);
 
 error_free_preparse:
 	if (key->type->preparse)
@@ -537,7 +536,7 @@ int key_reject_and_link(struct key *key,
 			struct key *keyring,
 			struct key *authkey)
 {
-	unsigned long prealloc;
+	struct assoc_array_edit *edit;
 	struct timespec now;
 	int ret, awaken, link_ret = 0;
 
@@ -548,7 +547,7 @@ int key_reject_and_link(struct key *key,
 	ret = -EBUSY;
 
 	if (keyring)
-		link_ret = __key_link_begin(keyring, &key->index_key, &prealloc);
+		link_ret = __key_link_begin(keyring, &key->index_key, &edit);
 
 	mutex_lock(&key_construction_mutex);
 
@@ -570,7 +569,7 @@ int key_reject_and_link(struct key *key,
 
 		/* and link it into the destination keyring */
 		if (keyring && link_ret == 0)
-			__key_link(keyring, key, &prealloc);
+			__key_link(key, &edit);
 
 		/* disable the authorisation key */
 		if (authkey)
@@ -580,7 +579,7 @@ int key_reject_and_link(struct key *key,
 	mutex_unlock(&key_construction_mutex);
 
 	if (keyring)
-		__key_link_end(keyring, &key->index_key, prealloc);
+		__key_link_end(keyring, &key->index_key, edit);
 
 	/* wake up anyone waiting for a key to be constructed */
 	if (awaken)
@@ -783,8 +782,8 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref,
 		.description	= description,
 	};
 	struct key_preparsed_payload prep;
+	struct assoc_array_edit *edit;
 	const struct cred *cred = current_cred();
-	unsigned long prealloc;
 	struct key *keyring, *key = NULL;
 	key_ref_t key_ref;
 	int ret;
@@ -828,7 +827,7 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref,
 	}
 	index_key.desc_len = strlen(index_key.description);
 
-	ret = __key_link_begin(keyring, &index_key, &prealloc);
+	ret = __key_link_begin(keyring, &index_key, &edit);
 	if (ret < 0) {
 		key_ref = ERR_PTR(ret);
 		goto error_free_prep;
@@ -847,8 +846,8 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref,
 	 * update that instead if possible
 	 */
 	if (index_key.type->update) {
-		key_ref = __keyring_search_one(keyring_ref, &index_key);
-		if (!IS_ERR(key_ref))
+		key_ref = find_key_to_update(keyring_ref, &index_key);
+		if (key_ref)
 			goto found_matching_key;
 	}
 
@@ -874,7 +873,7 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref,
 	}
 
 	/* instantiate it and link it into the target keyring */
-	ret = __key_instantiate_and_link(key, &prep, keyring, NULL, &prealloc);
+	ret = __key_instantiate_and_link(key, &prep, keyring, NULL, &edit);
 	if (ret < 0) {
 		key_put(key);
 		key_ref = ERR_PTR(ret);
@@ -884,7 +883,7 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref,
 	key_ref = make_key_ref(key, is_key_possessed(keyring_ref));
 
 error_link_end:
-	__key_link_end(keyring, &index_key, prealloc);
+	__key_link_end(keyring, &index_key, edit);
 error_free_prep:
 	if (index_key.type->preparse)
 		index_key.type->free_preparse(&prep);
@@ -897,7 +896,7 @@ error:
 	/* we found a matching key, so we're going to try to update it
 	 * - we can drop the locks first as we have the key pinned
 	 */
-	__key_link_end(keyring, &index_key, prealloc);
+	__key_link_end(keyring, &index_key, edit);
 
 	key_ref = __key_update(key_ref, &prep);
 	goto error_free_prep;
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index eeef1a073db4..f7cdea22214f 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -1,6 +1,6 @@
 /* Keyring handling
  *
- * Copyright (C) 2004-2005, 2008 Red Hat, Inc. All Rights Reserved.
+ * Copyright (C) 2004-2005, 2008, 2013 Red Hat, Inc. All Rights Reserved.
  * Written by David Howells (dhowells@redhat.com)
  *
  * This program is free software; you can redistribute it and/or
@@ -17,25 +17,11 @@
 #include <linux/seq_file.h>
 #include <linux/err.h>
 #include <keys/keyring-type.h>
+#include <keys/user-type.h>
+#include <linux/assoc_array_priv.h>
 #include <linux/uaccess.h>
 #include "internal.h"
 
-#define rcu_dereference_locked_keyring(keyring)				\
-	(rcu_dereference_protected(					\
-		(keyring)->payload.subscriptions,			\
-		rwsem_is_locked((struct rw_semaphore *)&(keyring)->sem)))
-
-#define rcu_deref_link_locked(klist, index, keyring)			\
-	(rcu_dereference_protected(					\
-		(klist)->keys[index],					\
-		rwsem_is_locked((struct rw_semaphore *)&(keyring)->sem)))
-
-#define MAX_KEYRING_LINKS						\
-	min_t(size_t, USHRT_MAX - 1,					\
-	      ((PAGE_SIZE - sizeof(struct keyring_list)) / sizeof(struct key *)))
-
-#define KEY_LINK_FIXQUOTA 1UL
-
 /*
  * When plumbing the depths of the key tree, this sets a hard limit
  * set on how deep we're willing to go.
@@ -47,6 +33,28 @@
  */
 #define KEYRING_NAME_HASH_SIZE	(1 << 5)
 
+/*
+ * We mark pointers we pass to the associative array with bit 1 set if
+ * they're keyrings and clear otherwise.
+ */
+#define KEYRING_PTR_SUBTYPE	0x2UL
+
+static inline bool keyring_ptr_is_keyring(const struct assoc_array_ptr *x)
+{
+	return (unsigned long)x & KEYRING_PTR_SUBTYPE;
+}
+static inline struct key *keyring_ptr_to_key(const struct assoc_array_ptr *x)
+{
+	void *object = assoc_array_ptr_to_leaf(x);
+	return (struct key *)((unsigned long)object & ~KEYRING_PTR_SUBTYPE);
+}
+static inline void *keyring_key_to_ptr(struct key *key)
+{
+	if (key->type == &key_type_keyring)
+		return (void *)((unsigned long)key | KEYRING_PTR_SUBTYPE);
+	return key;
+}
+
 static struct list_head	keyring_name_hash[KEYRING_NAME_HASH_SIZE];
 static DEFINE_RWLOCK(keyring_name_lock);
 
@@ -67,7 +75,6 @@ static inline unsigned keyring_hash(const char *desc)
  */
 static int keyring_instantiate(struct key *keyring,
 			       struct key_preparsed_payload *prep);
-static int keyring_match(const struct key *keyring, const void *criterion);
 static void keyring_revoke(struct key *keyring);
 static void keyring_destroy(struct key *keyring);
 static void keyring_describe(const struct key *keyring, struct seq_file *m);
@@ -76,9 +83,9 @@ static long keyring_read(const struct key *keyring,
 
 struct key_type key_type_keyring = {
 	.name		= "keyring",
-	.def_datalen	= sizeof(struct keyring_list),
+	.def_datalen	= 0,
 	.instantiate	= keyring_instantiate,
-	.match		= keyring_match,
+	.match		= user_match,
 	.revoke		= keyring_revoke,
 	.destroy	= keyring_destroy,
 	.describe	= keyring_describe,
@@ -127,6 +134,7 @@ static int keyring_instantiate(struct key *keyring,
 
 	ret = -EINVAL;
 	if (prep->datalen == 0) {
+		assoc_array_init(&keyring->keys);
 		/* make the keyring available by name if it has one */
 		keyring_publish_name(keyring);
 		ret = 0;
@@ -136,14 +144,225 @@ static int keyring_instantiate(struct key *keyring,
 }
 
 /*
- * Match keyrings on their name
+ * Multiply 64-bits by 32-bits to 96-bits and fold back to 64-bit.  Ideally we'd
+ * fold the carry back too, but that requires inline asm.
+ */
+static u64 mult_64x32_and_fold(u64 x, u32 y)
+{
+	u64 hi = (u64)(u32)(x >> 32) * y;
+	u64 lo = (u64)(u32)(x) * y;
+	return lo + ((u64)(u32)hi << 32) + (u32)(hi >> 32);
+}
+
+/*
+ * Hash a key type and description.
+ */
+static unsigned long hash_key_type_and_desc(const struct keyring_index_key *index_key)
+{
+	const unsigned level_shift = ASSOC_ARRAY_LEVEL_STEP;
+	const unsigned long level_mask = ASSOC_ARRAY_LEVEL_STEP_MASK;
+	const char *description = index_key->description;
+	unsigned long hash, type;
+	u32 piece;
+	u64 acc;
+	int n, desc_len = index_key->desc_len;
+
+	type = (unsigned long)index_key->type;
+
+	acc = mult_64x32_and_fold(type, desc_len + 13);
+	acc = mult_64x32_and_fold(acc, 9207);
+	for (;;) {
+		n = desc_len;
+		if (n <= 0)
+			break;
+		if (n > 4)
+			n = 4;
+		piece = 0;
+		memcpy(&piece, description, n);
+		description += n;
+		desc_len -= n;
+		acc = mult_64x32_and_fold(acc, piece);
+		acc = mult_64x32_and_fold(acc, 9207);
+	}
+
+	/* Fold the hash down to 32 bits if need be. */
+	hash = acc;
+	if (ASSOC_ARRAY_KEY_CHUNK_SIZE == 32)
+		hash ^= acc >> 32;
+
+	/* Squidge all the keyrings into a separate part of the tree to
+	 * ordinary keys by making sure the lowest level segment in the hash is
+	 * zero for keyrings and non-zero otherwise.
+	 */
+	if (index_key->type != &key_type_keyring && (hash & level_mask) == 0)
+		return hash | (hash >> (ASSOC_ARRAY_KEY_CHUNK_SIZE - level_shift)) | 1;
+	if (index_key->type == &key_type_keyring && (hash & level_mask) != 0)
+		return (hash + (hash << level_shift)) & ~level_mask;
+	return hash;
+}
+
+/*
+ * Build the next index key chunk.
+ *
+ * On 32-bit systems the index key is laid out as:
+ *
+ *	0	4	5	9...
+ *	hash	desclen	typeptr	desc[]
+ *
+ * On 64-bit systems:
+ *
+ *	0	8	9	17...
+ *	hash	desclen	typeptr	desc[]
+ *
+ * We return it one word-sized chunk at a time.
  */
-static int keyring_match(const struct key *keyring, const void *description)
+static unsigned long keyring_get_key_chunk(const void *data, int level)
+{
+	const struct keyring_index_key *index_key = data;
+	unsigned long chunk = 0;
+	long offset = 0;
+	int desc_len = index_key->desc_len, n = sizeof(chunk);
+
+	level /= ASSOC_ARRAY_KEY_CHUNK_SIZE;
+	switch (level) {
+	case 0:
+		return hash_key_type_and_desc(index_key);
+	case 1:
+		return ((unsigned long)index_key->type << 8) | desc_len;
+	case 2:
+		if (desc_len == 0)
+			return (u8)((unsigned long)index_key->type >>
+				    (ASSOC_ARRAY_KEY_CHUNK_SIZE - 8));
+		n--;
+		offset = 1;
+	default:
+		offset += sizeof(chunk) - 1;
+		offset += (level - 3) * sizeof(chunk);
+		if (offset >= desc_len)
+			return 0;
+		desc_len -= offset;
+		if (desc_len > n)
+			desc_len = n;
+		offset += desc_len;
+		do {
+			chunk <<= 8;
+			chunk |= ((u8*)index_key->description)[--offset];
+		} while (--desc_len > 0);
+
+		if (level == 2) {
+			chunk <<= 8;
+			chunk |= (u8)((unsigned long)index_key->type >>
+				      (ASSOC_ARRAY_KEY_CHUNK_SIZE - 8));
+		}
+		return chunk;
+	}
+}
+
+static unsigned long keyring_get_object_key_chunk(const void *object, int level)
+{
+	const struct key *key = keyring_ptr_to_key(object);
+	return keyring_get_key_chunk(&key->index_key, level);
+}
+
+static bool keyring_compare_object(const void *object, const void *data)
 {
-	return keyring->description &&
-		strcmp(keyring->description, description) == 0;
+	const struct keyring_index_key *index_key = data;
+	const struct key *key = keyring_ptr_to_key(object);
+
+	return key->index_key.type == index_key->type &&
+		key->index_key.desc_len == index_key->desc_len &&
+		memcmp(key->index_key.description, index_key->description,
+		       index_key->desc_len) == 0;
 }
 
+/*
+ * Compare the index keys of a pair of objects and determine the bit position
+ * at which they differ - if they differ.
+ */
+static int keyring_diff_objects(const void *_a, const void *_b)
+{
+	const struct key *key_a = keyring_ptr_to_key(_a);
+	const struct key *key_b = keyring_ptr_to_key(_b);
+	const struct keyring_index_key *a = &key_a->index_key;
+	const struct keyring_index_key *b = &key_b->index_key;
+	unsigned long seg_a, seg_b;
+	int level, i;
+
+	level = 0;
+	seg_a = hash_key_type_and_desc(a);
+	seg_b = hash_key_type_and_desc(b);
+	if ((seg_a ^ seg_b) != 0)
+		goto differ;
+
+	/* The number of bits contributed by the hash is controlled by a
+	 * constant in the assoc_array headers.  Everything else thereafter we
+	 * can deal with as being machine word-size dependent.
+	 */
+	level += ASSOC_ARRAY_KEY_CHUNK_SIZE / 8;
+	seg_a = a->desc_len;
+	seg_b = b->desc_len;
+	if ((seg_a ^ seg_b) != 0)
+		goto differ;
+
+	/* The next bit may not work on big endian */
+	level++;
+	seg_a = (unsigned long)a->type;
+	seg_b = (unsigned long)b->type;
+	if ((seg_a ^ seg_b) != 0)
+		goto differ;
+
+	level += sizeof(unsigned long);
+	if (a->desc_len == 0)
+		goto same;
+
+	i = 0;
+	if (((unsigned long)a->description | (unsigned long)b->description) &
+	    (sizeof(unsigned long) - 1)) {
+		do {
+			seg_a = *(unsigned long *)(a->description + i);
+			seg_b = *(unsigned long *)(b->description + i);
+			if ((seg_a ^ seg_b) != 0)
+				goto differ_plus_i;
+			i += sizeof(unsigned long);
+		} while (i < (a->desc_len & (sizeof(unsigned long) - 1)));
+	}
+
+	for (; i < a->desc_len; i++) {
+		seg_a = *(unsigned char *)(a->description + i);
+		seg_b = *(unsigned char *)(b->description + i);
+		if ((seg_a ^ seg_b) != 0)
+			goto differ_plus_i;
+	}
+
+same:
+	return -1;
+
+differ_plus_i:
+	level += i;
+differ:
+	i = level * 8 + __ffs(seg_a ^ seg_b);
+	return i;
+}
+
+/*
+ * Free an object after stripping the keyring flag off of the pointer.
+ */
+static void keyring_free_object(void *object)
+{
+	key_put(keyring_ptr_to_key(object));
+}
+
+/*
+ * Operations for keyring management by the index-tree routines.
+ */
+static const struct assoc_array_ops keyring_assoc_array_ops = {
+	.get_key_chunk		= keyring_get_key_chunk,
+	.get_object_key_chunk	= keyring_get_object_key_chunk,
+	.compare_object		= keyring_compare_object,
+	.diff_objects		= keyring_diff_objects,
+	.free_object		= keyring_free_object,
+};
+
 /*
  * Clean up a keyring when it is destroyed.  Unpublish its name if it had one
  * and dispose of its data.
@@ -155,9 +374,6 @@ static int keyring_match(const struct key *keyring, const void *description)
  */
 static void keyring_destroy(struct key *keyring)
 {
-	struct keyring_list *klist;
-	int loop;
-
 	if (keyring->description) {
 		write_lock(&keyring_name_lock);
 
@@ -168,12 +384,7 @@ static void keyring_destroy(struct key *keyring)
 		write_unlock(&keyring_name_lock);
 	}
 
-	klist = rcu_access_pointer(keyring->payload.subscriptions);
-	if (klist) {
-		for (loop = klist->nkeys - 1; loop >= 0; loop--)
-			key_put(rcu_access_pointer(klist->keys[loop]));
-		kfree(klist);
-	}
+	assoc_array_destroy(&keyring->keys, &keyring_assoc_array_ops);
 }
 
 /*
@@ -181,76 +392,88 @@ static void keyring_destroy(struct key *keyring)
  */
 static void keyring_describe(const struct key *keyring, struct seq_file *m)
 {
-	struct keyring_list *klist;
-
 	if (keyring->description)
 		seq_puts(m, keyring->description);
 	else
 		seq_puts(m, "[anon]");
 
 	if (key_is_instantiated(keyring)) {
-		rcu_read_lock();
-		klist = rcu_dereference(keyring->payload.subscriptions);
-		if (klist)
-			seq_printf(m, ": %u/%u", klist->nkeys, klist->maxkeys);
+		if (keyring->keys.nr_leaves_on_tree != 0)
+			seq_printf(m, ": %lu", keyring->keys.nr_leaves_on_tree);
 		else
 			seq_puts(m, ": empty");
-		rcu_read_unlock();
 	}
 }
 
+struct keyring_read_iterator_context {
+	size_t			qty;
+	size_t			count;
+	key_serial_t __user	*buffer;
+};
+
+static int keyring_read_iterator(const void *object, void *data)
+{
+	struct keyring_read_iterator_context *ctx = data;
+	const struct key *key = keyring_ptr_to_key(object);
+	int ret;
+
+	kenter("{%s,%d},,{%zu/%zu}",
+	       key->type->name, key->serial, ctx->count, ctx->qty);
+
+	if (ctx->count >= ctx->qty)
+		return 1;
+
+	ret = put_user(key->serial, ctx->buffer);
+	if (ret < 0)
+		return ret;
+	ctx->buffer++;
+	ctx->count += sizeof(key->serial);
+	return 0;
+}
+
 /*
  * Read a list of key IDs from the keyring's contents in binary form
  *
- * The keyring's semaphore is read-locked by the caller.
+ * The keyring's semaphore is read-locked by the caller.  This prevents someone
+ * from modifying it under us - which could cause us to read key IDs multiple
+ * times.
  */
 static long keyring_read(const struct key *keyring,
 			 char __user *buffer, size_t buflen)
 {
-	struct keyring_list *klist;
-	struct key *key;
-	size_t qty, tmp;
-	int loop, ret;
+	struct keyring_read_iterator_context ctx;
+	unsigned long nr_keys;
+	int ret;
 
-	ret = 0;
-	klist = rcu_dereference_locked_keyring(keyring);
-	if (klist) {
-		/* calculate how much data we could return */
-		qty = klist->nkeys * sizeof(key_serial_t);
-
-		if (buffer && buflen > 0) {
-			if (buflen > qty)
-				buflen = qty;
-
-			/* copy the IDs of the subscribed keys into the
-			 * buffer */
-			ret = -EFAULT;
-
-			for (loop = 0; loop < klist->nkeys; loop++) {
-				key = rcu_deref_link_locked(klist, loop,
-							    keyring);
-
-				tmp = sizeof(key_serial_t);
-				if (tmp > buflen)
-					tmp = buflen;
-
-				if (copy_to_user(buffer,
-						 &key->serial,
-						 tmp) != 0)
-					goto error;
-
-				buflen -= tmp;
-				if (buflen == 0)
-					break;
-				buffer += tmp;
-			}
-		}
+	kenter("{%d},,%zu", key_serial(keyring), buflen);
+
+	if (buflen & (sizeof(key_serial_t) - 1))
+		return -EINVAL;
+
+	nr_keys = keyring->keys.nr_leaves_on_tree;
+	if (nr_keys == 0)
+		return 0;
 
-		ret = qty;
+	/* Calculate how much data we could return */
+	ctx.qty = nr_keys * sizeof(key_serial_t);
+
+	if (!buffer || !buflen)
+		return ctx.qty;
+
+	if (buflen > ctx.qty)
+		ctx.qty = buflen;
+
+	/* Copy the IDs of the subscribed keys into the buffer */
+	ctx.buffer = (key_serial_t __user *)buffer;
+	ctx.count = 0;
+	ret = assoc_array_iterate(&keyring->keys, keyring_read_iterator, &ctx);
+	if (ret < 0) {
+		kleave(" = %d [iterate]", ret);
+		return ret;
 	}
 
-error:
-	return ret;
+	kleave(" = %zu [ok]", ctx.count);
+	return ctx.count;
 }
 
 /*
@@ -277,219 +500,360 @@ struct key *keyring_alloc(const char *description, kuid_t uid, kgid_t gid,
 }
 EXPORT_SYMBOL(keyring_alloc);
 
-/**
- * keyring_search_aux - Search a keyring tree for a key matching some criteria
- * @keyring_ref: A pointer to the keyring with possession indicator.
- * @ctx: The keyring search context.
- *
- * Search the supplied keyring tree for a key that matches the criteria given.
- * The root keyring and any linked keyrings must grant Search permission to the
- * caller to be searchable and keys can only be found if they too grant Search
- * to the caller. The possession flag on the root keyring pointer controls use
- * of the possessor bits in permissions checking of the entire tree.  In
- * addition, the LSM gets to forbid keyring searches and key matches.
- *
- * The search is performed as a breadth-then-depth search up to the prescribed
- * limit (KEYRING_SEARCH_MAX_DEPTH).
- *
- * Keys are matched to the type provided and are then filtered by the match
- * function, which is given the description to use in any way it sees fit.  The
- * match function may use any attributes of a key that it wishes to to
- * determine the match.  Normally the match function from the key type would be
- * used.
- *
- * RCU is used to prevent the keyring key lists from disappearing without the
- * need to take lots of locks.
- *
- * Returns a pointer to the found key and increments the key usage count if
- * successful; -EAGAIN if no matching keys were found, or if expired or revoked
- * keys were found; -ENOKEY if only negative keys were found; -ENOTDIR if the
- * specified keyring wasn't a keyring.
- *
- * In the case of a successful return, the possession attribute from
- * @keyring_ref is propagated to the returned key reference.
+/*
+ * Iteration function to consider each key found.
  */
-key_ref_t keyring_search_aux(key_ref_t keyring_ref,
-			     struct keyring_search_context *ctx)
+static int keyring_search_iterator(const void *object, void *iterator_data)
 {
-	struct {
-		/* Need a separate keylist pointer for RCU purposes */
-		struct key *keyring;
-		struct keyring_list *keylist;
-		int kix;
-	} stack[KEYRING_SEARCH_MAX_DEPTH];
-
-	struct keyring_list *keylist;
-	unsigned long kflags;
-	struct key *keyring, *key;
-	key_ref_t key_ref;
-	long err;
-	int sp, nkeys, kix;
+	struct keyring_search_context *ctx = iterator_data;
+	const struct key *key = keyring_ptr_to_key(object);
+	unsigned long kflags = key->flags;
 
-	keyring = key_ref_to_ptr(keyring_ref);
-	ctx->possessed = is_key_possessed(keyring_ref);
-	key_check(keyring);
+	kenter("{%d}", key->serial);
 
-	/* top keyring must have search permission to begin the search */
-	err = key_task_permission(keyring_ref, ctx->cred, KEY_SEARCH);
-	if (err < 0) {
-		key_ref = ERR_PTR(err);
-		goto error;
+	/* ignore keys not of this type */
+	if (key->type != ctx->index_key.type) {
+		kleave(" = 0 [!type]");
+		return 0;
 	}
 
-	key_ref = ERR_PTR(-ENOTDIR);
-	if (keyring->type != &key_type_keyring)
-		goto error;
+	/* skip invalidated, revoked and expired keys */
+	if (ctx->flags & KEYRING_SEARCH_DO_STATE_CHECK) {
+		if (kflags & ((1 << KEY_FLAG_INVALIDATED) |
+			      (1 << KEY_FLAG_REVOKED))) {
+			ctx->result = ERR_PTR(-EKEYREVOKED);
+			kleave(" = %d [invrev]", ctx->skipped_ret);
+			goto skipped;
+		}
 
-	rcu_read_lock();
+		if (key->expiry && ctx->now.tv_sec >= key->expiry) {
+			ctx->result = ERR_PTR(-EKEYEXPIRED);
+			kleave(" = %d [expire]", ctx->skipped_ret);
+			goto skipped;
+		}
+	}
 
-	ctx->now = current_kernel_time();
-	err = -EAGAIN;
-	sp = 0;
-
-	/* firstly we should check to see if this top-level keyring is what we
-	 * are looking for */
-	key_ref = ERR_PTR(-EAGAIN);
-	kflags = keyring->flags;
-	if (keyring->type == ctx->index_key.type &&
-	    ctx->match(keyring, ctx->match_data)) {
-		key = keyring;
-		if (ctx->flags & KEYRING_SEARCH_NO_STATE_CHECK)
-			goto found;
+	/* keys that don't match */
+	if (!ctx->match(key, ctx->match_data)) {
+		kleave(" = 0 [!match]");
+		return 0;
+	}
 
-		/* check it isn't negative and hasn't expired or been
-		 * revoked */
-		if (kflags & (1 << KEY_FLAG_REVOKED))
-			goto error_2;
-		if (key->expiry && ctx->now.tv_sec >= key->expiry)
-			goto error_2;
-		key_ref = ERR_PTR(key->type_data.reject_error);
-		if (kflags & (1 << KEY_FLAG_NEGATIVE))
-			goto error_2;
-		goto found;
+	/* key must have search permissions */
+	if (!(ctx->flags & KEYRING_SEARCH_NO_CHECK_PERM) &&
+	    key_task_permission(make_key_ref(key, ctx->possessed),
+				ctx->cred, KEY_SEARCH) < 0) {
+		ctx->result = ERR_PTR(-EACCES);
+		kleave(" = %d [!perm]", ctx->skipped_ret);
+		goto skipped;
 	}
 
-	/* otherwise, the top keyring must not be revoked, expired, or
-	 * negatively instantiated if we are to search it */
-	key_ref = ERR_PTR(-EAGAIN);
-	if (kflags & ((1 << KEY_FLAG_INVALIDATED) |
-		      (1 << KEY_FLAG_REVOKED) |
-		      (1 << KEY_FLAG_NEGATIVE)) ||
-	    (keyring->expiry && ctx->now.tv_sec >= keyring->expiry))
-		goto error_2;
-
-	/* start processing a new keyring */
-descend:
-	kflags = keyring->flags;
-	if (kflags & ((1 << KEY_FLAG_INVALIDATED) |
-		      (1 << KEY_FLAG_REVOKED)))
-		goto not_this_keyring;
+	if (ctx->flags & KEYRING_SEARCH_DO_STATE_CHECK) {
+		/* we set a different error code if we pass a negative key */
+		if (kflags & (1 << KEY_FLAG_NEGATIVE)) {
+			ctx->result = ERR_PTR(key->type_data.reject_error);
+			kleave(" = %d [neg]", ctx->skipped_ret);
+			goto skipped;
+		}
+	}
 
-	keylist = rcu_dereference(keyring->payload.subscriptions);
-	if (!keylist)
-		goto not_this_keyring;
+	/* Found */
+	ctx->result = make_key_ref(key, ctx->possessed);
+	kleave(" = 1 [found]");
+	return 1;
 
-	/* iterate through the keys in this keyring first */
-	nkeys = keylist->nkeys;
-	smp_rmb();
-	for (kix = 0; kix < nkeys; kix++) {
-		key = rcu_dereference(keylist->keys[kix]);
-		kflags = key->flags;
+skipped:
+	return ctx->skipped_ret;
+}
 
-		/* ignore keys not of this type */
-		if (key->type != ctx->index_key.type)
-			continue;
+/*
+ * Search inside a keyring for a key.  We can search by walking to it
+ * directly based on its index-key or we can iterate over the entire
+ * tree looking for it, based on the match function.
+ */
+static int search_keyring(struct key *keyring, struct keyring_search_context *ctx)
+{
+	if ((ctx->flags & KEYRING_SEARCH_LOOKUP_TYPE) ==
+	    KEYRING_SEARCH_LOOKUP_DIRECT) {
+		const void *object;
+
+		object = assoc_array_find(&keyring->keys,
+					  &keyring_assoc_array_ops,
+					  &ctx->index_key);
+		return object ? ctx->iterator(object, ctx) : 0;
+	}
+	return assoc_array_iterate(&keyring->keys, ctx->iterator, ctx);
+}
 
-		/* skip invalidated, revoked and expired keys */
-		if (!(ctx->flags & KEYRING_SEARCH_NO_STATE_CHECK)) {
-			if (kflags & ((1 << KEY_FLAG_INVALIDATED) |
-				      (1 << KEY_FLAG_REVOKED)))
-				continue;
+/*
+ * Search a tree of keyrings that point to other keyrings up to the maximum
+ * depth.
+ */
+static bool search_nested_keyrings(struct key *keyring,
+				   struct keyring_search_context *ctx)
+{
+	struct {
+		struct key *keyring;
+		struct assoc_array_node *node;
+		int slot;
+	} stack[KEYRING_SEARCH_MAX_DEPTH];
 
-			if (key->expiry && ctx->now.tv_sec >= key->expiry)
-				continue;
-		}
+	struct assoc_array_shortcut *shortcut;
+	struct assoc_array_node *node;
+	struct assoc_array_ptr *ptr;
+	struct key *key;
+	int sp = 0, slot;
 
-		/* keys that don't match */
-		if (!ctx->match(key, ctx->match_data))
-			continue;
+	kenter("{%d},{%s,%s}",
+	       keyring->serial,
+	       ctx->index_key.type->name,
+	       ctx->index_key.description);
 
-		/* key must have search permissions */
-		if (key_task_permission(make_key_ref(key, ctx->possessed),
-					ctx->cred, KEY_SEARCH) < 0)
-			continue;
+	if (ctx->index_key.description)
+		ctx->index_key.desc_len = strlen(ctx->index_key.description);
 
-		if (ctx->flags & KEYRING_SEARCH_NO_STATE_CHECK)
+	/* Check to see if this top-level keyring is what we are looking for
+	 * and whether it is valid or not.
+	 */
+	if (ctx->flags & KEYRING_SEARCH_LOOKUP_ITERATE ||
+	    keyring_compare_object(keyring, &ctx->index_key)) {
+		ctx->skipped_ret = 2;
+		ctx->flags |= KEYRING_SEARCH_DO_STATE_CHECK;
+		switch (ctx->iterator(keyring_key_to_ptr(keyring), ctx)) {
+		case 1:
 			goto found;
-
-		/* we set a different error code if we pass a negative key */
-		if (kflags & (1 << KEY_FLAG_NEGATIVE)) {
-			err = key->type_data.reject_error;
-			continue;
+		case 2:
+			return false;
+		default:
+			break;
 		}
+	}
 
+	ctx->skipped_ret = 0;
+	if (ctx->flags & KEYRING_SEARCH_NO_STATE_CHECK)
+		ctx->flags &= ~KEYRING_SEARCH_DO_STATE_CHECK;
+
+	/* Start processing a new keyring */
+descend_to_keyring:
+	kdebug("descend to %d", keyring->serial);
+	if (keyring->flags & ((1 << KEY_FLAG_INVALIDATED) |
+			      (1 << KEY_FLAG_REVOKED)))
+		goto not_this_keyring;
+
+	/* Search through the keys in this keyring before its searching its
+	 * subtrees.
+	 */
+	if (search_keyring(keyring, ctx))
 		goto found;
-	}
 
-	/* search through the keyrings nested in this one */
-	kix = 0;
-ascend:
-	nkeys = keylist->nkeys;
-	smp_rmb();
-	for (; kix < nkeys; kix++) {
-		key = rcu_dereference(keylist->keys[kix]);
-		if (key->type != &key_type_keyring)
-			continue;
+	/* Then manually iterate through the keyrings nested in this one.
+	 *
+	 * Start from the root node of the index tree.  Because of the way the
+	 * hash function has been set up, keyrings cluster on the leftmost
+	 * branch of the root node (root slot 0) or in the root node itself.
+	 * Non-keyrings avoid the leftmost branch of the root entirely (root
+	 * slots 1-15).
+	 */
+	ptr = ACCESS_ONCE(keyring->keys.root);
+	if (!ptr)
+		goto not_this_keyring;
 
-		/* recursively search nested keyrings
-		 * - only search keyrings for which we have search permission
+	if (assoc_array_ptr_is_shortcut(ptr)) {
+		/* If the root is a shortcut, either the keyring only contains
+		 * keyring pointers (everything clusters behind root slot 0) or
+		 * doesn't contain any keyring pointers.
 		 */
-		if (sp >= KEYRING_SEARCH_MAX_DEPTH)
+		shortcut = assoc_array_ptr_to_shortcut(ptr);
+		smp_read_barrier_depends();
+		if ((shortcut->index_key[0] & ASSOC_ARRAY_FAN_MASK) != 0)
+			goto not_this_keyring;
+
+		ptr = ACCESS_ONCE(shortcut->next_node);
+		node = assoc_array_ptr_to_node(ptr);
+		goto begin_node;
+	}
+
+	node = assoc_array_ptr_to_node(ptr);
+	smp_read_barrier_depends();
+
+	ptr = node->slots[0];
+	if (!assoc_array_ptr_is_meta(ptr))
+		goto begin_node;
+
+descend_to_node:
+	/* Descend to a more distal node in this keyring's content tree and go
+	 * through that.
+	 */
+	kdebug("descend");
+	if (assoc_array_ptr_is_shortcut(ptr)) {
+		shortcut = assoc_array_ptr_to_shortcut(ptr);
+		smp_read_barrier_depends();
+		ptr = ACCESS_ONCE(shortcut->next_node);
+		BUG_ON(!assoc_array_ptr_is_node(ptr));
+		node = assoc_array_ptr_to_node(ptr);
+	}
+
+begin_node:
+	kdebug("begin_node");
+	smp_read_barrier_depends();
+	slot = 0;
+ascend_to_node:
+	/* Go through the slots in a node */
+	for (; slot < ASSOC_ARRAY_FAN_OUT; slot++) {
+		ptr = ACCESS_ONCE(node->slots[slot]);
+
+		if (assoc_array_ptr_is_meta(ptr) && node->back_pointer)
+			goto descend_to_node;
+
+		if (!keyring_ptr_is_keyring(ptr))
 			continue;
 
-		if (key_task_permission(make_key_ref(key, ctx->possessed),
+		key = keyring_ptr_to_key(ptr);
+
+		if (sp >= KEYRING_SEARCH_MAX_DEPTH) {
+			if (ctx->flags & KEYRING_SEARCH_DETECT_TOO_DEEP) {
+				ctx->result = ERR_PTR(-ELOOP);
+				return false;
+			}
+			goto not_this_keyring;
+		}
+
+		/* Search a nested keyring */
+		if (!(ctx->flags & KEYRING_SEARCH_NO_CHECK_PERM) &&
+		    key_task_permission(make_key_ref(key, ctx->possessed),
 					ctx->cred, KEY_SEARCH) < 0)
 			continue;
 
 		/* stack the current position */
 		stack[sp].keyring = keyring;
-		stack[sp].keylist = keylist;
-		stack[sp].kix = kix;
+		stack[sp].node = node;
+		stack[sp].slot = slot;
 		sp++;
 
 		/* begin again with the new keyring */
 		keyring = key;
-		goto descend;
+		goto descend_to_keyring;
+	}
+
+	/* We've dealt with all the slots in the current node, so now we need
+	 * to ascend to the parent and continue processing there.
+	 */
+	ptr = ACCESS_ONCE(node->back_pointer);
+	slot = node->parent_slot;
+
+	if (ptr && assoc_array_ptr_is_shortcut(ptr)) {
+		shortcut = assoc_array_ptr_to_shortcut(ptr);
+		smp_read_barrier_depends();
+		ptr = ACCESS_ONCE(shortcut->back_pointer);
+		slot = shortcut->parent_slot;
+	}
+	if (!ptr)
+		goto not_this_keyring;
+	node = assoc_array_ptr_to_node(ptr);
+	smp_read_barrier_depends();
+	slot++;
+
+	/* If we've ascended to the root (zero backpointer), we must have just
+	 * finished processing the leftmost branch rather than the root slots -
+	 * so there can't be any more keyrings for us to find.
+	 */
+	if (node->back_pointer) {
+		kdebug("ascend %d", slot);
+		goto ascend_to_node;
 	}
 
-	/* the keyring we're looking at was disqualified or didn't contain a
-	 * matching key */
+	/* The keyring we're looking at was disqualified or didn't contain a
+	 * matching key.
+	 */
 not_this_keyring:
-	if (sp > 0) {
-		/* resume the processing of a keyring higher up in the tree */
-		sp--;
-		keyring = stack[sp].keyring;
-		keylist = stack[sp].keylist;
-		kix = stack[sp].kix + 1;
-		goto ascend;
+	kdebug("not_this_keyring %d", sp);
+	if (sp <= 0) {
+		kleave(" = false");
+		return false;
 	}
 
-	key_ref = ERR_PTR(err);
-	goto error_2;
+	/* Resume the processing of a keyring higher up in the tree */
+	sp--;
+	keyring = stack[sp].keyring;
+	node = stack[sp].node;
+	slot = stack[sp].slot + 1;
+	kdebug("ascend to %d [%d]", keyring->serial, slot);
+	goto ascend_to_node;
 
-	/* we found a viable match */
+	/* We found a viable match */
 found:
-	__key_get(key);
-	key->last_used_at = ctx->now.tv_sec;
-	keyring->last_used_at = ctx->now.tv_sec;
-	while (sp > 0)
-		stack[--sp].keyring->last_used_at = ctx->now.tv_sec;
+	key = key_ref_to_ptr(ctx->result);
 	key_check(key);
-	key_ref = make_key_ref(key, ctx->possessed);
-error_2:
+	if (!(ctx->flags & KEYRING_SEARCH_NO_UPDATE_TIME)) {
+		key->last_used_at = ctx->now.tv_sec;
+		keyring->last_used_at = ctx->now.tv_sec;
+		while (sp > 0)
+			stack[--sp].keyring->last_used_at = ctx->now.tv_sec;
+	}
+	kleave(" = true");
+	return true;
+}
+
+/**
+ * keyring_search_aux - Search a keyring tree for a key matching some criteria
+ * @keyring_ref: A pointer to the keyring with possession indicator.
+ * @ctx: The keyring search context.
+ *
+ * Search the supplied keyring tree for a key that matches the criteria given.
+ * The root keyring and any linked keyrings must grant Search permission to the
+ * caller to be searchable and keys can only be found if they too grant Search
+ * to the caller. The possession flag on the root keyring pointer controls use
+ * of the possessor bits in permissions checking of the entire tree.  In
+ * addition, the LSM gets to forbid keyring searches and key matches.
+ *
+ * The search is performed as a breadth-then-depth search up to the prescribed
+ * limit (KEYRING_SEARCH_MAX_DEPTH).
+ *
+ * Keys are matched to the type provided and are then filtered by the match
+ * function, which is given the description to use in any way it sees fit.  The
+ * match function may use any attributes of a key that it wishes to to
+ * determine the match.  Normally the match function from the key type would be
+ * used.
+ *
+ * RCU can be used to prevent the keyring key lists from disappearing without
+ * the need to take lots of locks.
+ *
+ * Returns a pointer to the found key and increments the key usage count if
+ * successful; -EAGAIN if no matching keys were found, or if expired or revoked
+ * keys were found; -ENOKEY if only negative keys were found; -ENOTDIR if the
+ * specified keyring wasn't a keyring.
+ *
+ * In the case of a successful return, the possession attribute from
+ * @keyring_ref is propagated to the returned key reference.
+ */
+key_ref_t keyring_search_aux(key_ref_t keyring_ref,
+			     struct keyring_search_context *ctx)
+{
+	struct key *keyring;
+	long err;
+
+	ctx->iterator = keyring_search_iterator;
+	ctx->possessed = is_key_possessed(keyring_ref);
+	ctx->result = ERR_PTR(-EAGAIN);
+
+	keyring = key_ref_to_ptr(keyring_ref);
+	key_check(keyring);
+
+	if (keyring->type != &key_type_keyring)
+		return ERR_PTR(-ENOTDIR);
+
+	if (!(ctx->flags & KEYRING_SEARCH_NO_CHECK_PERM)) {
+		err = key_task_permission(keyring_ref, ctx->cred, KEY_SEARCH);
+		if (err < 0)
+			return ERR_PTR(err);
+	}
+
+	rcu_read_lock();
+	ctx->now = current_kernel_time();
+	if (search_nested_keyrings(keyring, ctx))
+		__key_get(key_ref_to_ptr(ctx->result));
 	rcu_read_unlock();
-error:
-	return key_ref;
+	return ctx->result;
 }
 
 /**
@@ -499,7 +863,7 @@ error:
  * @description: The name of the keyring we want to find.
  *
  * As keyring_search_aux() above, but using the current task's credentials and
- * type's default matching function.
+ * type's default matching function and preferred search method.
  */
 key_ref_t keyring_search(key_ref_t keyring,
 			 struct key_type *type,
@@ -523,58 +887,49 @@ key_ref_t keyring_search(key_ref_t keyring,
 EXPORT_SYMBOL(keyring_search);
 
 /*
- * Search the given keyring only (no recursion).
+ * Search the given keyring for a key that might be updated.
  *
  * The caller must guarantee that the keyring is a keyring and that the
- * permission is granted to search the keyring as no check is made here.
- *
- * RCU is used to make it unnecessary to lock the keyring key list here.
+ * permission is granted to modify the keyring as no check is made here.  The
+ * caller must also hold a lock on the keyring semaphore.
  *
  * Returns a pointer to the found key with usage count incremented if
- * successful and returns -ENOKEY if not found.  Revoked and invalidated keys
- * are skipped over.
+ * successful and returns NULL if not found.  Revoked and invalidated keys are
+ * skipped over.
  *
  * If successful, the possession indicator is propagated from the keyring ref
  * to the returned key reference.
  */
-key_ref_t __keyring_search_one(key_ref_t keyring_ref,
-			       const struct keyring_index_key *index_key)
+key_ref_t find_key_to_update(key_ref_t keyring_ref,
+			     const struct keyring_index_key *index_key)
 {
-	struct keyring_list *klist;
 	struct key *keyring, *key;
-	bool possessed;
-	int nkeys, loop;
+	const void *object;
 
 	keyring = key_ref_to_ptr(keyring_ref);
-	possessed = is_key_possessed(keyring_ref);
 
-	rcu_read_lock();
+	kenter("{%d},{%s,%s}",
+	       keyring->serial, index_key->type->name, index_key->description);
 
-	klist = rcu_dereference(keyring->payload.subscriptions);
-	if (klist) {
-		nkeys = klist->nkeys;
-		smp_rmb();
-		for (loop = 0; loop < nkeys ; loop++) {
-			key = rcu_dereference(klist->keys[loop]);
-			if (key->type == index_key->type &&
-			    (!key->type->match ||
-			     key->type->match(key, index_key->description)) &&
-			    !(key->flags & ((1 << KEY_FLAG_INVALIDATED) |
-					    (1 << KEY_FLAG_REVOKED)))
-			    )
-				goto found;
-		}
-	}
+	object = assoc_array_find(&keyring->keys, &keyring_assoc_array_ops,
+				  index_key);
 
-	rcu_read_unlock();
-	return ERR_PTR(-ENOKEY);
+	if (object)
+		goto found;
+
+	kleave(" = NULL");
+	return NULL;
 
 found:
+	key = keyring_ptr_to_key(object);
+	if (key->flags & ((1 << KEY_FLAG_INVALIDATED) |
+			  (1 << KEY_FLAG_REVOKED))) {
+		kleave(" = NULL [x]");
+		return NULL;
+	}
 	__key_get(key);
-	keyring->last_used_at = key->last_used_at =
-		current_kernel_time().tv_sec;
-	rcu_read_unlock();
-	return make_key_ref(key, possessed);
+	kleave(" = {%d}", key->serial);
+	return make_key_ref(key, is_key_possessed(keyring_ref));
 }
 
 /*
@@ -637,6 +992,19 @@ out:
 	return keyring;
 }
 
+static int keyring_detect_cycle_iterator(const void *object,
+					 void *iterator_data)
+{
+	struct keyring_search_context *ctx = iterator_data;
+	const struct key *key = keyring_ptr_to_key(object);
+
+	kenter("{%d}", key->serial);
+
+	BUG_ON(key != ctx->match_data);
+	ctx->result = ERR_PTR(-EDEADLK);
+	return 1;
+}
+
 /*
  * See if a cycle will will be created by inserting acyclic tree B in acyclic
  * tree A at the topmost level (ie: as a direct child of A).
@@ -646,117 +1014,39 @@ out:
  */
 static int keyring_detect_cycle(struct key *A, struct key *B)
 {
-	struct {
-		struct keyring_list *keylist;
-		int kix;
-	} stack[KEYRING_SEARCH_MAX_DEPTH];
-
-	struct keyring_list *keylist;
-	struct key *subtree, *key;
-	int sp, nkeys, kix, ret;
+	struct keyring_search_context ctx = {
+		.index_key	= A->index_key,
+		.match_data	= A,
+		.iterator	= keyring_detect_cycle_iterator,
+		.flags		= (KEYRING_SEARCH_LOOKUP_DIRECT |
+				   KEYRING_SEARCH_NO_STATE_CHECK |
+				   KEYRING_SEARCH_NO_UPDATE_TIME |
+				   KEYRING_SEARCH_NO_CHECK_PERM |
+				   KEYRING_SEARCH_DETECT_TOO_DEEP),
+	};
 
 	rcu_read_lock();
-
-	ret = -EDEADLK;
-	if (A == B)
-		goto cycle_detected;
-
-	subtree = B;
-	sp = 0;
-
-	/* start processing a new keyring */
-descend:
-	if (test_bit(KEY_FLAG_REVOKED, &subtree->flags))
-		goto not_this_keyring;
-
-	keylist = rcu_dereference(subtree->payload.subscriptions);
-	if (!keylist)
-		goto not_this_keyring;
-	kix = 0;
-
-ascend:
-	/* iterate through the remaining keys in this keyring */
-	nkeys = keylist->nkeys;
-	smp_rmb();
-	for (; kix < nkeys; kix++) {
-		key = rcu_dereference(keylist->keys[kix]);
-
-		if (key == A)
-			goto cycle_detected;
-
-		/* recursively check nested keyrings */
-		if (key->type == &key_type_keyring) {
-			if (sp >= KEYRING_SEARCH_MAX_DEPTH)
-				goto too_deep;
-
-			/* stack the current position */
-			stack[sp].keylist = keylist;
-			stack[sp].kix = kix;
-			sp++;
-
-			/* begin again with the new keyring */
-			subtree = key;
-			goto descend;
-		}
-	}
-
-	/* the keyring we're looking at was disqualified or didn't contain a
-	 * matching key */
-not_this_keyring:
-	if (sp > 0) {
-		/* resume the checking of a keyring higher up in the tree */
-		sp--;
-		keylist = stack[sp].keylist;
-		kix = stack[sp].kix + 1;
-		goto ascend;
-	}
-
-	ret = 0; /* no cycles detected */
-
-error:
+	search_nested_keyrings(B, &ctx);
 	rcu_read_unlock();
-	return ret;
-
-too_deep:
-	ret = -ELOOP;
-	goto error;
-
-cycle_detected:
-	ret = -EDEADLK;
-	goto error;
-}
-
-/*
- * Dispose of a keyring list after the RCU grace period, freeing the unlinked
- * key
- */
-static void keyring_unlink_rcu_disposal(struct rcu_head *rcu)
-{
-	struct keyring_list *klist =
-		container_of(rcu, struct keyring_list, rcu);
-
-	if (klist->delkey != USHRT_MAX)
-		key_put(rcu_access_pointer(klist->keys[klist->delkey]));
-	kfree(klist);
+	return PTR_ERR(ctx.result) == -EAGAIN ? 0 : PTR_ERR(ctx.result);
 }
 
 /*
  * Preallocate memory so that a key can be linked into to a keyring.
  */
-int __key_link_begin(struct key *keyring, const struct keyring_index_key *index_key,
-		     unsigned long *_prealloc)
+int __key_link_begin(struct key *keyring,
+		     const struct keyring_index_key *index_key,
+		     struct assoc_array_edit **_edit)
 	__acquires(&keyring->sem)
 	__acquires(&keyring_serialise_link_sem)
 {
-	struct keyring_list *klist, *nklist;
-	unsigned long prealloc;
-	unsigned max;
-	time_t lowest_lru;
-	size_t size;
-	int loop, lru, ret;
+	struct assoc_array_edit *edit;
+	int ret;
 
 	kenter("%d,%s,%s,",
-	       key_serial(keyring), index_key->type->name, index_key->description);
+	       keyring->serial, index_key->type->name, index_key->description);
+
+	BUG_ON(index_key->desc_len == 0);
 
 	if (keyring->type != &key_type_keyring)
 		return -ENOTDIR;
@@ -772,88 +1062,25 @@ int __key_link_begin(struct key *keyring, const struct keyring_index_key *index_
 	if (index_key->type == &key_type_keyring)
 		down_write(&keyring_serialise_link_sem);
 
-	klist = rcu_dereference_locked_keyring(keyring);
-
-	/* see if there's a matching key we can displace */
-	lru = -1;
-	if (klist && klist->nkeys > 0) {
-		lowest_lru = TIME_T_MAX;
-		for (loop = klist->nkeys - 1; loop >= 0; loop--) {
-			struct key *key = rcu_deref_link_locked(klist, loop,
-								keyring);
-			if (key->type == index_key->type &&
-			    strcmp(key->description, index_key->description) == 0) {
-				/* Found a match - we'll replace the link with
-				 * one to the new key.  We record the slot
-				 * position.
-				 */
-				klist->delkey = loop;
-				prealloc = 0;
-				goto done;
-			}
-			if (key->last_used_at < lowest_lru) {
-				lowest_lru = key->last_used_at;
-				lru = loop;
-			}
-		}
-	}
-
-	/* If the keyring is full then do an LRU discard */
-	if (klist &&
-	    klist->nkeys == klist->maxkeys &&
-	    klist->maxkeys >= MAX_KEYRING_LINKS) {
-		kdebug("LRU discard %d\n", lru);
-		klist->delkey = lru;
-		prealloc = 0;
-		goto done;
-	}
-
 	/* check that we aren't going to overrun the user's quota */
 	ret = key_payload_reserve(keyring,
 				  keyring->datalen + KEYQUOTA_LINK_BYTES);
 	if (ret < 0)
 		goto error_sem;
 
-	if (klist && klist->nkeys < klist->maxkeys) {
-		/* there's sufficient slack space to append directly */
-		klist->delkey = klist->nkeys;
-		prealloc = KEY_LINK_FIXQUOTA;
-	} else {
-		/* grow the key list */
-		max = 4;
-		if (klist) {
-			max += klist->maxkeys;
-			if (max > MAX_KEYRING_LINKS)
-				max = MAX_KEYRING_LINKS;
-			BUG_ON(max <= klist->maxkeys);
-		}
-
-		size = sizeof(*klist) + sizeof(struct key *) * max;
-
-		ret = -ENOMEM;
-		nklist = kmalloc(size, GFP_KERNEL);
-		if (!nklist)
-			goto error_quota;
-
-		nklist->maxkeys = max;
-		if (klist) {
-			memcpy(nklist->keys, klist->keys,
-			       sizeof(struct key *) * klist->nkeys);
-			nklist->delkey = klist->nkeys;
-			nklist->nkeys = klist->nkeys + 1;
-			klist->delkey = USHRT_MAX;
-		} else {
-			nklist->nkeys = 1;
-			nklist->delkey = 0;
-		}
-
-		/* add the key into the new space */
-		RCU_INIT_POINTER(nklist->keys[nklist->delkey], NULL);
-		prealloc = (unsigned long)nklist | KEY_LINK_FIXQUOTA;
+	/* Create an edit script that will insert/replace the key in the
+	 * keyring tree.
+	 */
+	edit = assoc_array_insert(&keyring->keys,
+				  &keyring_assoc_array_ops,
+				  index_key,
+				  NULL);
+	if (IS_ERR(edit)) {
+		ret = PTR_ERR(edit);
+		goto error_quota;
 	}
 
-done:
-	*_prealloc = prealloc;
+	*_edit = edit;
 	kleave(" = 0");
 	return 0;
 
@@ -893,60 +1120,12 @@ int __key_link_check_live_key(struct key *keyring, struct key *key)
  * holds at most one link to any given key of a particular type+description
  * combination.
  */
-void __key_link(struct key *keyring, struct key *key,
-		unsigned long *_prealloc)
+void __key_link(struct key *key, struct assoc_array_edit **_edit)
 {
-	struct keyring_list *klist, *nklist;
-	struct key *discard;
-
-	nklist = (struct keyring_list *)(*_prealloc & ~KEY_LINK_FIXQUOTA);
-	*_prealloc = 0;
-
-	kenter("%d,%d,%p", keyring->serial, key->serial, nklist);
-
-	klist = rcu_dereference_locked_keyring(keyring);
-
 	__key_get(key);
-	keyring->last_used_at = key->last_used_at =
-		current_kernel_time().tv_sec;
-
-	/* there's a matching key we can displace or an empty slot in a newly
-	 * allocated list we can fill */
-	if (nklist) {
-		kdebug("reissue %hu/%hu/%hu",
-		       nklist->delkey, nklist->nkeys, nklist->maxkeys);
-
-		RCU_INIT_POINTER(nklist->keys[nklist->delkey], key);
-
-		rcu_assign_pointer(keyring->payload.subscriptions, nklist);
-
-		/* dispose of the old keyring list and, if there was one, the
-		 * displaced key */
-		if (klist) {
-			kdebug("dispose %hu/%hu/%hu",
-			       klist->delkey, klist->nkeys, klist->maxkeys);
-			call_rcu(&klist->rcu, keyring_unlink_rcu_disposal);
-		}
-	} else if (klist->delkey < klist->nkeys) {
-		kdebug("replace %hu/%hu/%hu",
-		       klist->delkey, klist->nkeys, klist->maxkeys);
-
-		discard = rcu_dereference_protected(
-			klist->keys[klist->delkey],
-			rwsem_is_locked(&keyring->sem));
-		rcu_assign_pointer(klist->keys[klist->delkey], key);
-		/* The garbage collector will take care of RCU
-		 * synchronisation */
-		key_put(discard);
-	} else {
-		/* there's sufficient slack space to append directly */
-		kdebug("append %hu/%hu/%hu",
-		       klist->delkey, klist->nkeys, klist->maxkeys);
-
-		RCU_INIT_POINTER(klist->keys[klist->delkey], key);
-		smp_wmb();
-		klist->nkeys++;
-	}
+	assoc_array_insert_set_object(*_edit, keyring_key_to_ptr(key));
+	assoc_array_apply_edit(*_edit);
+	*_edit = NULL;
 }
 
 /*
@@ -956,23 +1135,20 @@ void __key_link(struct key *keyring, struct key *key,
  */
 void __key_link_end(struct key *keyring,
 		    const struct keyring_index_key *index_key,
-		    unsigned long prealloc)
+		    struct assoc_array_edit *edit)
 	__releases(&keyring->sem)
 	__releases(&keyring_serialise_link_sem)
 {
 	BUG_ON(index_key->type == NULL);
-	BUG_ON(index_key->type->name == NULL);
-	kenter("%d,%s,%lx", keyring->serial, index_key->type->name, prealloc);
+	kenter("%d,%s,", keyring->serial, index_key->type->name);
 
 	if (index_key->type == &key_type_keyring)
 		up_write(&keyring_serialise_link_sem);
 
-	if (prealloc) {
-		if (prealloc & KEY_LINK_FIXQUOTA)
-			key_payload_reserve(keyring,
-					    keyring->datalen -
-					    KEYQUOTA_LINK_BYTES);
-		kfree((struct keyring_list *)(prealloc & ~KEY_LINK_FIXQUOTA));
+	if (edit) {
+		key_payload_reserve(keyring,
+				    keyring->datalen - KEYQUOTA_LINK_BYTES);
+		assoc_array_cancel_edit(edit);
 	}
 	up_write(&keyring->sem);
 }
@@ -999,20 +1175,24 @@ void __key_link_end(struct key *keyring,
  */
 int key_link(struct key *keyring, struct key *key)
 {
-	unsigned long prealloc;
+	struct assoc_array_edit *edit;
 	int ret;
 
+	kenter("{%d,%d}", keyring->serial, atomic_read(&keyring->usage));
+
 	key_check(keyring);
 	key_check(key);
 
-	ret = __key_link_begin(keyring, &key->index_key, &prealloc);
+	ret = __key_link_begin(keyring, &key->index_key, &edit);
 	if (ret == 0) {
+		kdebug("begun {%d,%d}", keyring->serial, atomic_read(&keyring->usage));
 		ret = __key_link_check_live_key(keyring, key);
 		if (ret == 0)
-			__key_link(keyring, key, &prealloc);
-		__key_link_end(keyring, &key->index_key, prealloc);
+			__key_link(key, &edit);
+		__key_link_end(keyring, &key->index_key, edit);
 	}
 
+	kleave(" = %d {%d,%d}", ret, keyring->serial, atomic_read(&keyring->usage));
 	return ret;
 }
 EXPORT_SYMBOL(key_link);
@@ -1036,90 +1216,36 @@ EXPORT_SYMBOL(key_link);
  */
 int key_unlink(struct key *keyring, struct key *key)
 {
-	struct keyring_list *klist, *nklist;
-	int loop, ret;
+	struct assoc_array_edit *edit;
+	int ret;
 
 	key_check(keyring);
 	key_check(key);
 
-	ret = -ENOTDIR;
 	if (keyring->type != &key_type_keyring)
-		goto error;
+		return -ENOTDIR;
 
 	down_write(&keyring->sem);
 
-	klist = rcu_dereference_locked_keyring(keyring);
-	if (klist) {
-		/* search the keyring for the key */
-		for (loop = 0; loop < klist->nkeys; loop++)
-			if (rcu_access_pointer(klist->keys[loop]) == key)
-				goto key_is_present;
+	edit = assoc_array_delete(&keyring->keys, &keyring_assoc_array_ops,
+				  &key->index_key);
+	if (IS_ERR(edit)) {
+		ret = PTR_ERR(edit);
+		goto error;
 	}
-
-	up_write(&keyring->sem);
 	ret = -ENOENT;
-	goto error;
-
-key_is_present:
-	/* we need to copy the key list for RCU purposes */
-	nklist = kmalloc(sizeof(*klist) +
-			 sizeof(struct key *) * klist->maxkeys,
-			 GFP_KERNEL);
-	if (!nklist)
-		goto nomem;
-	nklist->maxkeys = klist->maxkeys;
-	nklist->nkeys = klist->nkeys - 1;
-
-	if (loop > 0)
-		memcpy(&nklist->keys[0],
-		       &klist->keys[0],
-		       loop * sizeof(struct key *));
-
-	if (loop < nklist->nkeys)
-		memcpy(&nklist->keys[loop],
-		       &klist->keys[loop + 1],
-		       (nklist->nkeys - loop) * sizeof(struct key *));
-
-	/* adjust the user's quota */
-	key_payload_reserve(keyring,
-			    keyring->datalen - KEYQUOTA_LINK_BYTES);
-
-	rcu_assign_pointer(keyring->payload.subscriptions, nklist);
-
-	up_write(&keyring->sem);
-
-	/* schedule for later cleanup */
-	klist->delkey = loop;
-	call_rcu(&klist->rcu, keyring_unlink_rcu_disposal);
+	if (edit == NULL)
+		goto error;
 
+	assoc_array_apply_edit(edit);
 	ret = 0;
 
 error:
-	return ret;
-nomem:
-	ret = -ENOMEM;
 	up_write(&keyring->sem);
-	goto error;
+	return ret;
 }
 EXPORT_SYMBOL(key_unlink);
 
-/*
- * Dispose of a keyring list after the RCU grace period, releasing the keys it
- * links to.
- */
-static void keyring_clear_rcu_disposal(struct rcu_head *rcu)
-{
-	struct keyring_list *klist;
-	int loop;
-
-	klist = container_of(rcu, struct keyring_list, rcu);
-
-	for (loop = klist->nkeys - 1; loop >= 0; loop--)
-		key_put(rcu_access_pointer(klist->keys[loop]));
-
-	kfree(klist);
-}
-
 /**
  * keyring_clear - Clear a keyring
  * @keyring: The keyring to clear.
@@ -1130,33 +1256,25 @@ static void keyring_clear_rcu_disposal(struct rcu_head *rcu)
  */
 int keyring_clear(struct key *keyring)
 {
-	struct keyring_list *klist;
+	struct assoc_array_edit *edit;
 	int ret;
 
-	ret = -ENOTDIR;
-	if (keyring->type == &key_type_keyring) {
-		/* detach the pointer block with the locks held */
-		down_write(&keyring->sem);
-
-		klist = rcu_dereference_locked_keyring(keyring);
-		if (klist) {
-			/* adjust the quota */
-			key_payload_reserve(keyring,
-					    sizeof(struct keyring_list));
-
-			rcu_assign_pointer(keyring->payload.subscriptions,
-					   NULL);
-		}
-
-		up_write(&keyring->sem);
+	if (keyring->type != &key_type_keyring)
+		return -ENOTDIR;
 
-		/* free the keys after the locks have been dropped */
-		if (klist)
-			call_rcu(&klist->rcu, keyring_clear_rcu_disposal);
+	down_write(&keyring->sem);
 
+	edit = assoc_array_clear(&keyring->keys, &keyring_assoc_array_ops);
+	if (IS_ERR(edit)) {
+		ret = PTR_ERR(edit);
+	} else {
+		if (edit)
+			assoc_array_apply_edit(edit);
+		key_payload_reserve(keyring, 0);
 		ret = 0;
 	}
 
+	up_write(&keyring->sem);
 	return ret;
 }
 EXPORT_SYMBOL(keyring_clear);
@@ -1168,17 +1286,25 @@ EXPORT_SYMBOL(keyring_clear);
  */
 static void keyring_revoke(struct key *keyring)
 {
-	struct keyring_list *klist;
+	struct assoc_array_edit *edit;
 
-	klist = rcu_dereference_locked_keyring(keyring);
+	edit = assoc_array_clear(&keyring->keys, &keyring_assoc_array_ops);
+	if (!IS_ERR(edit)) {
+		if (edit)
+			assoc_array_apply_edit(edit);
+		key_payload_reserve(keyring, 0);
+	}
+}
 
-	/* adjust the quota */
-	key_payload_reserve(keyring, 0);
+static bool gc_iterator(void *object, void *iterator_data)
+{
+	struct key *key = keyring_ptr_to_key(object);
+	time_t *limit = iterator_data;
 
-	if (klist) {
-		rcu_assign_pointer(keyring->payload.subscriptions, NULL);
-		call_rcu(&klist->rcu, keyring_clear_rcu_disposal);
-	}
+	if (key_is_dead(key, *limit))
+		return false;
+	key_get(key);
+	return true;
 }
 
 /*
@@ -1191,88 +1317,12 @@ static void keyring_revoke(struct key *keyring)
  */
 void keyring_gc(struct key *keyring, time_t limit)
 {
-	struct keyring_list *klist, *new;
-	struct key *key;
-	int loop, keep, max;
-
 	kenter("{%x,%s}", key_serial(keyring), keyring->description);
 
 	down_write(&keyring->sem);
-
-	klist = rcu_dereference_locked_keyring(keyring);
-	if (!klist)
-		goto no_klist;
-
-	/* work out how many subscriptions we're keeping */
-	keep = 0;
-	for (loop = klist->nkeys - 1; loop >= 0; loop--)
-		if (!key_is_dead(rcu_deref_link_locked(klist, loop, keyring),
-				 limit))
-			keep++;
-
-	if (keep == klist->nkeys)
-		goto just_return;
-
-	/* allocate a new keyring payload */
-	max = roundup(keep, 4);
-	new = kmalloc(sizeof(struct keyring_list) + max * sizeof(struct key *),
-		      GFP_KERNEL);
-	if (!new)
-		goto nomem;
-	new->maxkeys = max;
-	new->nkeys = 0;
-	new->delkey = 0;
-
-	/* install the live keys
-	 * - must take care as expired keys may be updated back to life
-	 */
-	keep = 0;
-	for (loop = klist->nkeys - 1; loop >= 0; loop--) {
-		key = rcu_deref_link_locked(klist, loop, keyring);
-		if (!key_is_dead(key, limit)) {
-			if (keep >= max)
-				goto discard_new;
-			RCU_INIT_POINTER(new->keys[keep++], key_get(key));
-		}
-	}
-	new->nkeys = keep;
-
-	/* adjust the quota */
-	key_payload_reserve(keyring,
-			    sizeof(struct keyring_list) +
-			    KEYQUOTA_LINK_BYTES * keep);
-
-	if (keep == 0) {
-		rcu_assign_pointer(keyring->payload.subscriptions, NULL);
-		kfree(new);
-	} else {
-		rcu_assign_pointer(keyring->payload.subscriptions, new);
-	}
-
-	up_write(&keyring->sem);
-
-	call_rcu(&klist->rcu, keyring_clear_rcu_disposal);
-	kleave(" [yes]");
-	return;
-
-discard_new:
-	new->nkeys = keep;
-	keyring_clear_rcu_disposal(&new->rcu);
+	assoc_array_gc(&keyring->keys, &keyring_assoc_array_ops,
+		       gc_iterator, &limit);
 	up_write(&keyring->sem);
-	kleave(" [discard]");
-	return;
 
-just_return:
-	up_write(&keyring->sem);
-	kleave(" [no dead]");
-	return;
-
-no_klist:
-	up_write(&keyring->sem);
-	kleave(" [no_klist]");
-	return;
-
-nomem:
-	up_write(&keyring->sem);
-	kleave(" [oom]");
+	kleave("");
 }
diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index ab75df4745af..df94827103d0 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -351,7 +351,7 @@ static int construct_alloc_key(struct keyring_search_context *ctx,
 			       struct key_user *user,
 			       struct key **_key)
 {
-	unsigned long prealloc;
+	struct assoc_array_edit *edit;
 	struct key *key;
 	key_perm_t perm;
 	key_ref_t key_ref;
@@ -380,7 +380,7 @@ static int construct_alloc_key(struct keyring_search_context *ctx,
 	set_bit(KEY_FLAG_USER_CONSTRUCT, &key->flags);
 
 	if (dest_keyring) {
-		ret = __key_link_begin(dest_keyring, &ctx->index_key, &prealloc);
+		ret = __key_link_begin(dest_keyring, &ctx->index_key, &edit);
 		if (ret < 0)
 			goto link_prealloc_failed;
 	}
@@ -395,11 +395,11 @@ static int construct_alloc_key(struct keyring_search_context *ctx,
 		goto key_already_present;
 
 	if (dest_keyring)
-		__key_link(dest_keyring, key, &prealloc);
+		__key_link(key, &edit);
 
 	mutex_unlock(&key_construction_mutex);
 	if (dest_keyring)
-		__key_link_end(dest_keyring, &ctx->index_key, prealloc);
+		__key_link_end(dest_keyring, &ctx->index_key, edit);
 	mutex_unlock(&user->cons_lock);
 	*_key = key;
 	kleave(" = 0 [%d]", key_serial(key));
@@ -414,8 +414,8 @@ key_already_present:
 	if (dest_keyring) {
 		ret = __key_link_check_live_key(dest_keyring, key);
 		if (ret == 0)
-			__key_link(dest_keyring, key, &prealloc);
-		__key_link_end(dest_keyring, &ctx->index_key, prealloc);
+			__key_link(key, &edit);
+		__key_link_end(dest_keyring, &ctx->index_key, edit);
 		if (ret < 0)
 			goto link_check_failed;
 	}
-- 
cgit 


From ab3c3587f8cda9083209a61dbe3a4407d3cada10 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 24 Sep 2013 10:35:18 +0100
Subject: KEYS: Implement a big key type that can save to tmpfs

Implement a big key type that can save its contents to tmpfs and thus
swapspace when memory is tight.  This is useful for Kerberos ticket caches.

Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Simo Sorce <simo@redhat.com>
---
 include/keys/big_key-type.h |  25 ++++++
 include/linux/key.h         |   1 +
 security/keys/Kconfig       |  11 +++
 security/keys/Makefile      |   1 +
 security/keys/big_key.c     | 204 ++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 242 insertions(+)
 create mode 100644 include/keys/big_key-type.h
 create mode 100644 security/keys/big_key.c

diff --git a/include/keys/big_key-type.h b/include/keys/big_key-type.h
new file mode 100644
index 000000000000..d69bc8af3292
--- /dev/null
+++ b/include/keys/big_key-type.h
@@ -0,0 +1,25 @@
+/* Big capacity key type.
+ *
+ * Copyright (C) 2013 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _KEYS_BIG_KEY_TYPE_H
+#define _KEYS_BIG_KEY_TYPE_H
+
+#include <linux/key-type.h>
+
+extern struct key_type key_type_big_key;
+
+extern int big_key_instantiate(struct key *key, struct key_preparsed_payload *prep);
+extern void big_key_revoke(struct key *key);
+extern void big_key_destroy(struct key *key);
+extern void big_key_describe(const struct key *big_key, struct seq_file *m);
+extern long big_key_read(const struct key *key, char __user *buffer, size_t buflen);
+
+#endif /* _KEYS_BIG_KEY_TYPE_H */
diff --git a/include/linux/key.h b/include/linux/key.h
index 2417f789d29b..010dbb618aca 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -201,6 +201,7 @@ struct key {
 			unsigned long		value;
 			void __rcu		*rcudata;
 			void			*data;
+			void			*data2[2];
 		} payload;
 		struct assoc_array keys;
 	};
diff --git a/security/keys/Kconfig b/security/keys/Kconfig
index 15e0dfe8c80f..b56362275ec8 100644
--- a/security/keys/Kconfig
+++ b/security/keys/Kconfig
@@ -20,6 +20,17 @@ config KEYS
 
 	  If you are unsure as to whether this is required, answer N.
 
+config BIG_KEYS
+	tristate "Large payload keys"
+	depends on KEYS
+	depends on TMPFS
+	help
+	  This option provides support for holding large keys within the kernel
+	  (for example Kerberos ticket caches).  The data may be stored out to
+	  swapspace by tmpfs.
+
+	  If you are unsure as to whether this is required, answer N.
+
 config TRUSTED_KEYS
 	tristate "TRUSTED KEYS"
 	depends on KEYS && TCG_TPM
diff --git a/security/keys/Makefile b/security/keys/Makefile
index 504aaa008388..c487c77a00be 100644
--- a/security/keys/Makefile
+++ b/security/keys/Makefile
@@ -22,5 +22,6 @@ obj-$(CONFIG_SYSCTL) += sysctl.o
 #
 # Key types
 #
+obj-$(CONFIG_BIG_KEYS) += big_key.o
 obj-$(CONFIG_TRUSTED_KEYS) += trusted.o
 obj-$(CONFIG_ENCRYPTED_KEYS) += encrypted-keys/
diff --git a/security/keys/big_key.c b/security/keys/big_key.c
new file mode 100644
index 000000000000..5f9defc4a807
--- /dev/null
+++ b/security/keys/big_key.c
@@ -0,0 +1,204 @@
+/* Large capacity key type
+ *
+ * Copyright (C) 2013 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/seq_file.h>
+#include <linux/file.h>
+#include <linux/shmem_fs.h>
+#include <linux/err.h>
+#include <keys/user-type.h>
+#include <keys/big_key-type.h>
+
+MODULE_LICENSE("GPL");
+
+/*
+ * If the data is under this limit, there's no point creating a shm file to
+ * hold it as the permanently resident metadata for the shmem fs will be at
+ * least as large as the data.
+ */
+#define BIG_KEY_FILE_THRESHOLD (sizeof(struct inode) + sizeof(struct dentry))
+
+/*
+ * big_key defined keys take an arbitrary string as the description and an
+ * arbitrary blob of data as the payload
+ */
+struct key_type key_type_big_key = {
+	.name			= "big_key",
+	.def_lookup_type	= KEYRING_SEARCH_LOOKUP_DIRECT,
+	.instantiate		= big_key_instantiate,
+	.match			= user_match,
+	.revoke			= big_key_revoke,
+	.destroy		= big_key_destroy,
+	.describe		= big_key_describe,
+	.read			= big_key_read,
+};
+
+/*
+ * Instantiate a big key
+ */
+int big_key_instantiate(struct key *key, struct key_preparsed_payload *prep)
+{
+	struct path *path = (struct path *)&key->payload.data2;
+	struct file *file;
+	ssize_t written;
+	size_t datalen = prep->datalen;
+	int ret;
+
+	ret = -EINVAL;
+	if (datalen <= 0 || datalen > 1024 * 1024 || !prep->data)
+		goto error;
+
+	/* Set an arbitrary quota */
+	ret = key_payload_reserve(key, 16);
+	if (ret < 0)
+		goto error;
+
+	key->type_data.x[1] = datalen;
+
+	if (datalen > BIG_KEY_FILE_THRESHOLD) {
+		/* Create a shmem file to store the data in.  This will permit the data
+		 * to be swapped out if needed.
+		 *
+		 * TODO: Encrypt the stored data with a temporary key.
+		 */
+		file = shmem_file_setup("", datalen, 0);
+		if (IS_ERR(file))
+			goto err_quota;
+
+		written = kernel_write(file, prep->data, prep->datalen, 0);
+		if (written != datalen) {
+			if (written >= 0)
+				ret = -ENOMEM;
+			goto err_fput;
+		}
+
+		/* Pin the mount and dentry to the key so that we can open it again
+		 * later
+		 */
+		*path = file->f_path;
+		path_get(path);
+		fput(file);
+	} else {
+		/* Just store the data in a buffer */
+		void *data = kmalloc(datalen, GFP_KERNEL);
+		if (!data) {
+			ret = -ENOMEM;
+			goto err_quota;
+		}
+
+		key->payload.data = memcpy(data, prep->data, prep->datalen);
+	}
+	return 0;
+
+err_fput:
+	fput(file);
+err_quota:
+	key_payload_reserve(key, 0);
+error:
+	return ret;
+}
+
+/*
+ * dispose of the links from a revoked keyring
+ * - called with the key sem write-locked
+ */
+void big_key_revoke(struct key *key)
+{
+	struct path *path = (struct path *)&key->payload.data2;
+
+	/* clear the quota */
+	key_payload_reserve(key, 0);
+	if (key_is_instantiated(key) && key->type_data.x[1] > BIG_KEY_FILE_THRESHOLD)
+		vfs_truncate(path, 0);
+}
+
+/*
+ * dispose of the data dangling from the corpse of a big_key key
+ */
+void big_key_destroy(struct key *key)
+{
+	if (key->type_data.x[1] > BIG_KEY_FILE_THRESHOLD) {
+		struct path *path = (struct path *)&key->payload.data2;
+		path_put(path);
+		path->mnt = NULL;
+		path->dentry = NULL;
+	} else {
+		kfree(key->payload.data);
+		key->payload.data = NULL;
+	}
+}
+
+/*
+ * describe the big_key key
+ */
+void big_key_describe(const struct key *key, struct seq_file *m)
+{
+	unsigned long datalen = key->type_data.x[1];
+
+	seq_puts(m, key->description);
+
+	if (key_is_instantiated(key))
+		seq_printf(m, ": %lu [%s]",
+			   datalen,
+			   datalen > BIG_KEY_FILE_THRESHOLD ? "file" : "buff");
+}
+
+/*
+ * read the key data
+ * - the key's semaphore is read-locked
+ */
+long big_key_read(const struct key *key, char __user *buffer, size_t buflen)
+{
+	unsigned long datalen = key->type_data.x[1];
+	long ret;
+
+	if (!buffer || buflen < datalen)
+		return datalen;
+
+	if (datalen > BIG_KEY_FILE_THRESHOLD) {
+		struct path *path = (struct path *)&key->payload.data2;
+		struct file *file;
+		loff_t pos;
+
+		file = dentry_open(path, O_RDONLY, current_cred());
+		if (IS_ERR(file))
+			return PTR_ERR(file);
+
+		pos = 0;
+		ret = vfs_read(file, buffer, datalen, &pos);
+		fput(file);
+		if (ret >= 0 && ret != datalen)
+			ret = -EIO;
+	} else {
+		ret = datalen;
+		if (copy_to_user(buffer, key->payload.data, datalen) != 0)
+			ret = -EFAULT;
+	}
+
+	return ret;
+}
+
+/*
+ * Module stuff
+ */
+static int __init big_key_init(void)
+{
+	return register_key_type(&key_type_big_key);
+}
+
+static void __exit big_key_cleanup(void)
+{
+	unregister_key_type(&key_type_big_key);
+}
+
+module_init(big_key_init);
+module_exit(big_key_cleanup);
-- 
cgit 


From f36f8c75ae2e7d4da34f4c908cebdb4aa42c977e Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 24 Sep 2013 10:35:19 +0100
Subject: KEYS: Add per-user_namespace registers for persistent per-UID
 kerberos caches

Add support for per-user_namespace registers of persistent per-UID kerberos
caches held within the kernel.

This allows the kerberos cache to be retained beyond the life of all a user's
processes so that the user's cron jobs can work.

The kerberos cache is envisioned as a keyring/key tree looking something like:

	struct user_namespace
	  \___ .krb_cache keyring		- The register
		\___ _krb.0 keyring		- Root's Kerberos cache
		\___ _krb.5000 keyring		- User 5000's Kerberos cache
		\___ _krb.5001 keyring		- User 5001's Kerberos cache
			\___ tkt785 big_key	- A ccache blob
			\___ tkt12345 big_key	- Another ccache blob

Or possibly:

	struct user_namespace
	  \___ .krb_cache keyring		- The register
		\___ _krb.0 keyring		- Root's Kerberos cache
		\___ _krb.5000 keyring		- User 5000's Kerberos cache
		\___ _krb.5001 keyring		- User 5001's Kerberos cache
			\___ tkt785 keyring	- A ccache
				\___ krbtgt/REDHAT.COM@REDHAT.COM big_key
				\___ http/REDHAT.COM@REDHAT.COM user
				\___ afs/REDHAT.COM@REDHAT.COM user
				\___ nfs/REDHAT.COM@REDHAT.COM user
				\___ krbtgt/KERNEL.ORG@KERNEL.ORG big_key
				\___ http/KERNEL.ORG@KERNEL.ORG big_key

What goes into a particular Kerberos cache is entirely up to userspace.  Kernel
support is limited to giving you the Kerberos cache keyring that you want.

The user asks for their Kerberos cache by:

	krb_cache = keyctl_get_krbcache(uid, dest_keyring);

The uid is -1 or the user's own UID for the user's own cache or the uid of some
other user's cache (requires CAP_SETUID).  This permits rpc.gssd or whatever to
mess with the cache.

The cache returned is a keyring named "_krb.<uid>" that the possessor can read,
search, clear, invalidate, unlink from and add links to.  Active LSMs get a
chance to rule on whether the caller is permitted to make a link.

Each uid's cache keyring is created when it first accessed and is given a
timeout that is extended each time this function is called so that the keyring
goes away after a while.  The timeout is configurable by sysctl but defaults to
three days.

Each user_namespace struct gets a lazily-created keyring that serves as the
register.  The cache keyrings are added to it.  This means that standard key
search and garbage collection facilities are available.

The user_namespace struct's register goes away when it does and anything left
in it is then automatically gc'd.

Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Simo Sorce <simo@redhat.com>
cc: Serge E. Hallyn <serge.hallyn@ubuntu.com>
cc: Eric W. Biederman <ebiederm@xmission.com>
---
 include/linux/user_namespace.h |   6 ++
 include/uapi/linux/keyctl.h    |   1 +
 kernel/user.c                  |   4 +
 kernel/user_namespace.c        |   6 ++
 security/keys/Kconfig          |  17 +++++
 security/keys/Makefile         |   1 +
 security/keys/compat.c         |   3 +
 security/keys/internal.h       |   9 +++
 security/keys/keyctl.c         |   3 +
 security/keys/persistent.c     | 169 +++++++++++++++++++++++++++++++++++++++++
 security/keys/sysctl.c         |  11 +++
 11 files changed, 230 insertions(+)
 create mode 100644 security/keys/persistent.c

diff --git a/include/linux/user_namespace.h b/include/linux/user_namespace.h
index 4db29859464f..4836ba3c1cd8 100644
--- a/include/linux/user_namespace.h
+++ b/include/linux/user_namespace.h
@@ -27,6 +27,12 @@ struct user_namespace {
 	kuid_t			owner;
 	kgid_t			group;
 	unsigned int		proc_inum;
+
+	/* Register of per-UID persistent keyrings for this namespace */
+#ifdef CONFIG_PERSISTENT_KEYRINGS
+	struct key		*persistent_keyring_register;
+	struct rw_semaphore	persistent_keyring_register_sem;
+#endif
 };
 
 extern struct user_namespace init_user_ns;
diff --git a/include/uapi/linux/keyctl.h b/include/uapi/linux/keyctl.h
index c9b7f4faf97a..840cb990abe2 100644
--- a/include/uapi/linux/keyctl.h
+++ b/include/uapi/linux/keyctl.h
@@ -56,5 +56,6 @@
 #define KEYCTL_REJECT			19	/* reject a partially constructed key */
 #define KEYCTL_INSTANTIATE_IOV		20	/* instantiate a partially constructed key */
 #define KEYCTL_INVALIDATE		21	/* invalidate a key */
+#define KEYCTL_GET_PERSISTENT		22	/* get a user's persistent keyring */
 
 #endif /*  _LINUX_KEYCTL_H */
diff --git a/kernel/user.c b/kernel/user.c
index 5bbb91988e69..a3a0dbfda329 100644
--- a/kernel/user.c
+++ b/kernel/user.c
@@ -51,6 +51,10 @@ struct user_namespace init_user_ns = {
 	.owner = GLOBAL_ROOT_UID,
 	.group = GLOBAL_ROOT_GID,
 	.proc_inum = PROC_USER_INIT_INO,
+#ifdef CONFIG_KEYS_KERBEROS_CACHE
+	.krb_cache_register_sem =
+	__RWSEM_INITIALIZER(init_user_ns.krb_cache_register_sem),
+#endif
 };
 EXPORT_SYMBOL_GPL(init_user_ns);
 
diff --git a/kernel/user_namespace.c b/kernel/user_namespace.c
index 13fb1134ba58..240fb62cf394 100644
--- a/kernel/user_namespace.c
+++ b/kernel/user_namespace.c
@@ -101,6 +101,9 @@ int create_user_ns(struct cred *new)
 
 	set_cred_user_ns(new, ns);
 
+#ifdef CONFIG_PERSISTENT_KEYRINGS
+	init_rwsem(&ns->persistent_keyring_register_sem);
+#endif
 	return 0;
 }
 
@@ -130,6 +133,9 @@ void free_user_ns(struct user_namespace *ns)
 
 	do {
 		parent = ns->parent;
+#ifdef CONFIG_PERSISTENT_KEYRINGS
+		key_put(ns->persistent_keyring_register);
+#endif
 		proc_free_inum(ns->proc_inum);
 		kmem_cache_free(user_ns_cachep, ns);
 		ns = parent;
diff --git a/security/keys/Kconfig b/security/keys/Kconfig
index b56362275ec8..53d8748c9564 100644
--- a/security/keys/Kconfig
+++ b/security/keys/Kconfig
@@ -20,6 +20,23 @@ config KEYS
 
 	  If you are unsure as to whether this is required, answer N.
 
+config PERSISTENT_KEYRINGS
+	bool "Enable register of persistent per-UID keyrings"
+	depends on KEYS
+	help
+	  This option provides a register of persistent per-UID keyrings,
+	  primarily aimed at Kerberos key storage.  The keyrings are persistent
+	  in the sense that they stay around after all processes of that UID
+	  have exited, not that they survive the machine being rebooted.
+
+	  A particular keyring may be accessed by either the user whose keyring
+	  it is or by a process with administrative privileges.  The active
+	  LSMs gets to rule on which admin-level processes get to access the
+	  cache.
+
+	  Keyrings are created and added into the register upon demand and get
+	  removed if they expire (a default timeout is set upon creation).
+
 config BIG_KEYS
 	tristate "Large payload keys"
 	depends on KEYS
diff --git a/security/keys/Makefile b/security/keys/Makefile
index c487c77a00be..dfb3a7bededf 100644
--- a/security/keys/Makefile
+++ b/security/keys/Makefile
@@ -18,6 +18,7 @@ obj-y := \
 obj-$(CONFIG_KEYS_COMPAT) += compat.o
 obj-$(CONFIG_PROC_FS) += proc.o
 obj-$(CONFIG_SYSCTL) += sysctl.o
+obj-$(CONFIG_PERSISTENT_KEYRINGS) += persistent.o
 
 #
 # Key types
diff --git a/security/keys/compat.c b/security/keys/compat.c
index d65fa7fa29ba..bbd32c729dbb 100644
--- a/security/keys/compat.c
+++ b/security/keys/compat.c
@@ -138,6 +138,9 @@ asmlinkage long compat_sys_keyctl(u32 option,
 	case KEYCTL_INVALIDATE:
 		return keyctl_invalidate_key(arg2);
 
+	case KEYCTL_GET_PERSISTENT:
+		return keyctl_get_persistent(arg2, arg3);
+
 	default:
 		return -EOPNOTSUPP;
 	}
diff --git a/security/keys/internal.h b/security/keys/internal.h
index 581c6f688352..80b2aac4f50c 100644
--- a/security/keys/internal.h
+++ b/security/keys/internal.h
@@ -255,6 +255,15 @@ extern long keyctl_invalidate_key(key_serial_t);
 extern long keyctl_instantiate_key_common(key_serial_t,
 					  const struct iovec *,
 					  unsigned, size_t, key_serial_t);
+#ifdef CONFIG_PERSISTENT_KEYRINGS
+extern long keyctl_get_persistent(uid_t, key_serial_t);
+extern unsigned persistent_keyring_expiry;
+#else
+static inline long keyctl_get_persistent(uid_t uid, key_serial_t destring)
+{
+	return -EOPNOTSUPP;
+}
+#endif
 
 /*
  * Debugging key validation
diff --git a/security/keys/keyctl.c b/security/keys/keyctl.c
index 33cfd27b4de2..cee72ce64222 100644
--- a/security/keys/keyctl.c
+++ b/security/keys/keyctl.c
@@ -1667,6 +1667,9 @@ SYSCALL_DEFINE5(keyctl, int, option, unsigned long, arg2, unsigned long, arg3,
 	case KEYCTL_INVALIDATE:
 		return keyctl_invalidate_key((key_serial_t) arg2);
 
+	case KEYCTL_GET_PERSISTENT:
+		return keyctl_get_persistent((uid_t)arg2, (key_serial_t)arg3);
+
 	default:
 		return -EOPNOTSUPP;
 	}
diff --git a/security/keys/persistent.c b/security/keys/persistent.c
new file mode 100644
index 000000000000..82f4957a7acf
--- /dev/null
+++ b/security/keys/persistent.c
@@ -0,0 +1,169 @@
+/* General persistent per-UID keyrings register
+ *
+ * Copyright (C) 2013 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#include <linux/user_namespace.h>
+#include "internal.h"
+
+unsigned persistent_keyring_expiry = 3 * 24 * 3600; /* Expire after 3 days of non-use */
+
+/*
+ * Create the persistent keyring register for the current user namespace.
+ *
+ * Called with the namespace's sem locked for writing.
+ */
+static int key_create_persistent_register(struct user_namespace *ns)
+{
+	struct key *reg = keyring_alloc(".persistent_register",
+					KUIDT_INIT(0), KGIDT_INIT(0),
+					current_cred(),
+					((KEY_POS_ALL & ~KEY_POS_SETATTR) |
+					 KEY_USR_VIEW | KEY_USR_READ),
+					KEY_ALLOC_NOT_IN_QUOTA, NULL);
+	if (IS_ERR(reg))
+		return PTR_ERR(reg);
+
+	ns->persistent_keyring_register = reg;
+	return 0;
+}
+
+/*
+ * Create the persistent keyring for the specified user.
+ *
+ * Called with the namespace's sem locked for writing.
+ */
+static key_ref_t key_create_persistent(struct user_namespace *ns, kuid_t uid,
+				       struct keyring_index_key *index_key)
+{
+	struct key *persistent;
+	key_ref_t reg_ref, persistent_ref;
+
+	if (!ns->persistent_keyring_register) {
+		long err = key_create_persistent_register(ns);
+		if (err < 0)
+			return ERR_PTR(err);
+	} else {
+		reg_ref = make_key_ref(ns->persistent_keyring_register, true);
+		persistent_ref = find_key_to_update(reg_ref, index_key);
+		if (persistent_ref)
+			return persistent_ref;
+	}
+
+	persistent = keyring_alloc(index_key->description,
+				   uid, INVALID_GID, current_cred(),
+				   ((KEY_POS_ALL & ~KEY_POS_SETATTR) |
+				    KEY_USR_VIEW | KEY_USR_READ),
+				   KEY_ALLOC_NOT_IN_QUOTA,
+				   ns->persistent_keyring_register);
+	if (IS_ERR(persistent))
+		return ERR_CAST(persistent);
+
+	return make_key_ref(persistent, true);
+}
+
+/*
+ * Get the persistent keyring for a specific UID and link it to the nominated
+ * keyring.
+ */
+static long key_get_persistent(struct user_namespace *ns, kuid_t uid,
+			       key_ref_t dest_ref)
+{
+	struct keyring_index_key index_key;
+	struct key *persistent;
+	key_ref_t reg_ref, persistent_ref;
+	char buf[32];
+	long ret;
+
+	/* Look in the register if it exists */
+	index_key.type = &key_type_keyring;
+	index_key.description = buf;
+	index_key.desc_len = sprintf(buf, "_persistent.%u", from_kuid(ns, uid));
+
+	if (ns->persistent_keyring_register) {
+		reg_ref = make_key_ref(ns->persistent_keyring_register, true);
+		down_read(&ns->persistent_keyring_register_sem);
+		persistent_ref = find_key_to_update(reg_ref, &index_key);
+		up_read(&ns->persistent_keyring_register_sem);
+
+		if (persistent_ref)
+			goto found;
+	}
+
+	/* It wasn't in the register, so we'll need to create it.  We might
+	 * also need to create the register.
+	 */
+	down_write(&ns->persistent_keyring_register_sem);
+	persistent_ref = key_create_persistent(ns, uid, &index_key);
+	up_write(&ns->persistent_keyring_register_sem);
+	if (!IS_ERR(persistent_ref))
+		goto found;
+
+	return PTR_ERR(persistent_ref);
+
+found:
+	ret = key_task_permission(persistent_ref, current_cred(), KEY_LINK);
+	if (ret == 0) {
+		persistent = key_ref_to_ptr(persistent_ref);
+		ret = key_link(key_ref_to_ptr(dest_ref), persistent);
+		if (ret == 0) {
+			key_set_timeout(persistent, persistent_keyring_expiry);
+			ret = persistent->serial;		
+		}
+	}
+
+	key_ref_put(persistent_ref);
+	return ret;
+}
+
+/*
+ * Get the persistent keyring for a specific UID and link it to the nominated
+ * keyring.
+ */
+long keyctl_get_persistent(uid_t _uid, key_serial_t destid)
+{
+	struct user_namespace *ns = current_user_ns();
+	key_ref_t dest_ref;
+	kuid_t uid;
+	long ret;
+
+	/* -1 indicates the current user */
+	if (_uid == (uid_t)-1) {
+		uid = current_uid();
+	} else {
+		uid = make_kuid(ns, _uid);
+		if (!uid_valid(uid))
+			return -EINVAL;
+
+		/* You can only see your own persistent cache if you're not
+		 * sufficiently privileged.
+		 */
+		if (uid_eq(uid, current_uid()) &&
+		    uid_eq(uid, current_suid()) &&
+		    uid_eq(uid, current_euid()) &&
+		    uid_eq(uid, current_fsuid()) &&
+		    !ns_capable(ns, CAP_SETUID))
+			return -EPERM;
+	}
+
+	/* There must be a destination keyring */
+	dest_ref = lookup_user_key(destid, KEY_LOOKUP_CREATE, KEY_WRITE);
+	if (IS_ERR(dest_ref))
+		return PTR_ERR(dest_ref);
+	if (key_ref_to_ptr(dest_ref)->type != &key_type_keyring) {
+		ret = -ENOTDIR;
+		goto out_put_dest;
+	}
+
+	ret = key_get_persistent(ns, uid, dest_ref);
+
+out_put_dest:
+	key_ref_put(dest_ref);
+	return ret;
+}
diff --git a/security/keys/sysctl.c b/security/keys/sysctl.c
index ee32d181764a..8c0af08760c8 100644
--- a/security/keys/sysctl.c
+++ b/security/keys/sysctl.c
@@ -61,5 +61,16 @@ ctl_table key_sysctls[] = {
 		.extra1 = (void *) &zero,
 		.extra2 = (void *) &max,
 	},
+#ifdef CONFIG_PERSISTENT_KEYRINGS
+	{
+		.procname = "persistent_keyring_expiry",
+		.data = &persistent_keyring_expiry,
+		.maxlen = sizeof(unsigned),
+		.mode = 0644,
+		.proc_handler = proc_dointvec_minmax,
+		.extra1 = (void *) &zero,
+		.extra2 = (void *) &max,
+	},
+#endif
 	{ }
 };
-- 
cgit 


From ef60abbb6b406389245225ab4acfe73f66e7d92c Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 23 Sep 2013 16:12:52 +0100
Subject: regulator: core: Always use return value when regulator_dev_lookup()
 fails

Ensure that the return value is always set when we return now that the
logic has changed for regulator_get_optional() so we don't get missing
codes leaking out.

Reported-by: Thierry Reding <treding@nvidia.com>
Tested-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 088b41ac9506..a40055edaae4 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1263,12 +1263,13 @@ static struct regulator *_regulator_get(struct device *dev, const char *id,
 	if (rdev)
 		goto found;
 
+	regulator = ERR_PTR(ret);
+
 	/*
 	 * If we have return value from dev_lookup fail, we do not expect to
 	 * succeed, so, quit with appropriate error value
 	 */
 	if (ret && ret != -ENODEV) {
-		regulator = ERR_PTR(ret);
 		goto out;
 	}
 
-- 
cgit 


From 01ab35f14aafbc6e159254f52444895661c2f604 Mon Sep 17 00:00:00 2001
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Wed, 11 Sep 2013 22:12:23 +0200
Subject: HID: lenovo-tpkbd: devm conversion

We can use the devres API in hid modules, so use it to avoid some kfree
and potential leaks.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-lenovo-tpkbd.c | 30 ++++++++----------------------
 1 file changed, 8 insertions(+), 22 deletions(-)

diff --git a/drivers/hid/hid-lenovo-tpkbd.c b/drivers/hid/hid-lenovo-tpkbd.c
index 31cf29a6ba17..0d9a276af16a 100644
--- a/drivers/hid/hid-lenovo-tpkbd.c
+++ b/drivers/hid/hid-lenovo-tpkbd.c
@@ -339,7 +339,7 @@ static int tpkbd_probe_tp(struct hid_device *hdev)
 	struct tpkbd_data_pointer *data_pointer;
 	size_t name_sz = strlen(dev_name(dev)) + 16;
 	char *name_mute, *name_micmute;
-	int i, ret;
+	int i;
 
 	/* Validate required reports. */
 	for (i = 0; i < 4; i++) {
@@ -354,7 +354,9 @@ static int tpkbd_probe_tp(struct hid_device *hdev)
 		hid_warn(hdev, "Could not create sysfs group\n");
 	}
 
-	data_pointer = kzalloc(sizeof(struct tpkbd_data_pointer), GFP_KERNEL);
+	data_pointer = devm_kzalloc(&hdev->dev,
+				    sizeof(struct tpkbd_data_pointer),
+				    GFP_KERNEL);
 	if (data_pointer == NULL) {
 		hid_err(hdev, "Could not allocate memory for driver data\n");
 		return -ENOMEM;
@@ -364,20 +366,13 @@ static int tpkbd_probe_tp(struct hid_device *hdev)
 	data_pointer->sensitivity = 0xa0;
 	data_pointer->press_speed = 0x38;
 
-	name_mute = kzalloc(name_sz, GFP_KERNEL);
-	if (name_mute == NULL) {
+	name_mute = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);
+	name_micmute = devm_kzalloc(&hdev->dev, name_sz, GFP_KERNEL);
+	if (name_mute == NULL || name_micmute == NULL) {
 		hid_err(hdev, "Could not allocate memory for led data\n");
-		ret = -ENOMEM;
-		goto err;
+		return -ENOMEM;
 	}
 	snprintf(name_mute, name_sz, "%s:amber:mute", dev_name(dev));
-
-	name_micmute = kzalloc(name_sz, GFP_KERNEL);
-	if (name_micmute == NULL) {
-		hid_err(hdev, "Could not allocate memory for led data\n");
-		ret = -ENOMEM;
-		goto err2;
-	}
 	snprintf(name_micmute, name_sz, "%s:amber:micmute", dev_name(dev));
 
 	hid_set_drvdata(hdev, data_pointer);
@@ -397,12 +392,6 @@ static int tpkbd_probe_tp(struct hid_device *hdev)
 	tpkbd_features_set(hdev);
 
 	return 0;
-
-err2:
-	kfree(name_mute);
-err:
-	kfree(data_pointer);
-	return ret;
 }
 
 static int tpkbd_probe(struct hid_device *hdev,
@@ -449,9 +438,6 @@ static void tpkbd_remove_tp(struct hid_device *hdev)
 	led_classdev_unregister(&data_pointer->led_mute);
 
 	hid_set_drvdata(hdev, NULL);
-	kfree(data_pointer->led_micmute.name);
-	kfree(data_pointer->led_mute.name);
-	kfree(data_pointer);
 }
 
 static void tpkbd_remove(struct hid_device *hdev)
-- 
cgit 


From 0c5218362b429ab9cbf295dfe069ce410d180493 Mon Sep 17 00:00:00 2001
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Wed, 11 Sep 2013 22:12:24 +0200
Subject: HID: lenovo-tpkbd: remove usb dependency

lenovo tpkbd currently relies on the usb interface number to detect
if it is dealing with the touchpad interface or not.
As the report descriptors of the interface 0 does not contain the
button 3, we can use this to remove the need to check for usb.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/Kconfig            |  2 +-
 drivers/hid/hid-lenovo-tpkbd.c | 20 ++++++--------------
 2 files changed, 7 insertions(+), 15 deletions(-)

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 71b70e3a7a71..53747245d904 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -322,7 +322,7 @@ config HID_LCPOWER
 
 config HID_LENOVO_TPKBD
 	tristate "Lenovo ThinkPad USB Keyboard with TrackPoint"
-	depends on USB_HID
+	depends on HID
 	select NEW_LEDS
 	select LEDS_CLASS
 	---help---
diff --git a/drivers/hid/hid-lenovo-tpkbd.c b/drivers/hid/hid-lenovo-tpkbd.c
index 0d9a276af16a..2d25b6cbbc05 100644
--- a/drivers/hid/hid-lenovo-tpkbd.c
+++ b/drivers/hid/hid-lenovo-tpkbd.c
@@ -14,11 +14,9 @@
 #include <linux/module.h>
 #include <linux/sysfs.h>
 #include <linux/device.h>
-#include <linux/usb.h>
 #include <linux/hid.h>
 #include <linux/input.h>
 #include <linux/leds.h>
-#include "usbhid/usbhid.h"
 
 #include "hid-ids.h"
 
@@ -41,10 +39,9 @@ static int tpkbd_input_mapping(struct hid_device *hdev,
 		struct hid_input *hi, struct hid_field *field,
 		struct hid_usage *usage, unsigned long **bit, int *max)
 {
-	struct usbhid_device *uhdev;
-
-	uhdev = (struct usbhid_device *) hdev->driver_data;
-	if (uhdev->ifnum == 1 && usage->hid == (HID_UP_BUTTON | 0x0010)) {
+	if (usage->hid == (HID_UP_BUTTON | 0x0010)) {
+		/* mark the device as pointer */
+		hid_set_drvdata(hdev, (void *)1);
 		map_key_clear(KEY_MICMUTE);
 		return 1;
 	}
@@ -398,7 +395,6 @@ static int tpkbd_probe(struct hid_device *hdev,
 		const struct hid_device_id *id)
 {
 	int ret;
-	struct usbhid_device *uhdev;
 
 	ret = hid_parse(hdev);
 	if (ret) {
@@ -412,9 +408,8 @@ static int tpkbd_probe(struct hid_device *hdev,
 		goto err;
 	}
 
-	uhdev = (struct usbhid_device *) hdev->driver_data;
-
-	if (uhdev->ifnum == 1) {
+	if (hid_get_drvdata(hdev)) {
+		hid_set_drvdata(hdev, NULL);
 		ret = tpkbd_probe_tp(hdev);
 		if (ret)
 			goto err_hid;
@@ -442,10 +437,7 @@ static void tpkbd_remove_tp(struct hid_device *hdev)
 
 static void tpkbd_remove(struct hid_device *hdev)
 {
-	struct usbhid_device *uhdev;
-
-	uhdev = (struct usbhid_device *) hdev->driver_data;
-	if (uhdev->ifnum == 1)
+	if (hid_get_drvdata(hdev))
 		tpkbd_remove_tp(hdev);
 
 	hid_hw_stop(hdev);
-- 
cgit 


From f204828a1150b0f35730556cd493febda011caf1 Mon Sep 17 00:00:00 2001
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Wed, 11 Sep 2013 22:12:25 +0200
Subject: HID: sony: use hid_get_raw_report() instead of a direct call to usb

The usb packets are exactly the same, but it makes it a little bit more
independent of the transport layer.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-sony.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index b18320db5f7d..bc37a1800166 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -419,21 +419,14 @@ static int sixaxis_usb_output_raw_report(struct hid_device *hid, __u8 *buf,
  */
 static int sixaxis_set_operational_usb(struct hid_device *hdev)
 {
-	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
-	struct usb_device *dev = interface_to_usbdev(intf);
-	__u16 ifnum = intf->cur_altsetting->desc.bInterfaceNumber;
 	int ret;
 	char *buf = kmalloc(18, GFP_KERNEL);
 
 	if (!buf)
 		return -ENOMEM;
 
-	ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
-				 HID_REQ_GET_REPORT,
-				 USB_DIR_IN | USB_TYPE_CLASS |
-				 USB_RECIP_INTERFACE,
-				 (3 << 8) | 0xf2, ifnum, buf, 17,
-				 USB_CTRL_GET_TIMEOUT);
+	ret = hdev->hid_get_raw_report(hdev, 0xf2, buf, 17, HID_FEATURE_REPORT);
+
 	if (ret < 0)
 		hid_err(hdev, "can't set operational mode\n");
 
-- 
cgit 


From 64d2307c3b7daa03dbc0c3a6b514709dd7b6eaee Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 23 Sep 2013 01:08:25 -0300
Subject: ASoC: fsl: fsl_ssi: Fix simultaneous capture and playback

When doing simultaneous capture and playback on a mx6 board we get the following
error:

$ arecord -f cd  | aplay -f cd
imx-sgtl5000 sound.13: set sample size in capture stream first
fsl-ssi-dai 2028000.ssi: ASoC: can't open interface 2028000.ssi: -11
ALSA lib pcm_dmix.c:1018:(snd_pcm_dmix_
open) unable to open slave
aplay: main:660: audio open error: Device or resource busy
Recording WAVE 'stdin' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo

The 'arecord -f cd  | aplay -f cd' always trigger cause the
'if (!first_runtime->sample_bits)' block to be true which returns an error.

Adjust the logic inside fsl_ssi_startup(), so that we do not always hit the
error when playing  'arecord | aplay' line for the first time.

Reported-by: Chris Clepper <cgclepper@gmail.com>
Suggested-by: Nicolin Chen <b42378@freescale.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/fsl_ssi.c | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index 6ac87300d45d..cdbb641ef518 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -469,19 +469,12 @@ static int fsl_ssi_startup(struct snd_pcm_substream *substream,
 			 * parameters, then the second stream may be
 			 * constrained to the wrong sample rate or size.
 			 */
-			if (!first_runtime->sample_bits) {
-				dev_err(substream->pcm->card->dev,
-					"set sample size in %s stream first\n",
-					substream->stream ==
-					SNDRV_PCM_STREAM_PLAYBACK
-					? "capture" : "playback");
-				return -EAGAIN;
-			}
-
-			snd_pcm_hw_constraint_minmax(substream->runtime,
-				SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
+			if (first_runtime->sample_bits) {
+				snd_pcm_hw_constraint_minmax(substream->runtime,
+						SNDRV_PCM_HW_PARAM_SAMPLE_BITS,
 				first_runtime->sample_bits,
 				first_runtime->sample_bits);
+			}
 		}
 
 		ssi_private->second_stream = substream;
-- 
cgit 


From 9553821ead2b6e813a8b3a5360e20e28bfabc177 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 24 Sep 2013 10:54:51 +0300
Subject: spi: spi-topcliff-pch: fix a pci_iomap() check

If pci_iomap() returns NULL, adding "PCH_ADDRESS_SIZE * plat_dev->id"
can make it non-NULL which breaks the error handling.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-topcliff-pch.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-topcliff-pch.c b/drivers/spi/spi-topcliff-pch.c
index eaeeed51bbbf..777c40452bd1 100644
--- a/drivers/spi/spi-topcliff-pch.c
+++ b/drivers/spi/spi-topcliff-pch.c
@@ -1410,13 +1410,13 @@ static int pch_spi_pd_probe(struct platform_device *plat_dev)
 	/* baseaddress + address offset) */
 	data->io_base_addr = pci_resource_start(board_dat->pdev, 1) +
 					 PCH_ADDRESS_SIZE * plat_dev->id;
-	data->io_remap_addr = pci_iomap(board_dat->pdev, 1, 0) +
-					 PCH_ADDRESS_SIZE * plat_dev->id;
+	data->io_remap_addr = pci_iomap(board_dat->pdev, 1, 0);
 	if (!data->io_remap_addr) {
 		dev_err(&plat_dev->dev, "%s pci_iomap failed\n", __func__);
 		ret = -ENOMEM;
 		goto err_pci_iomap;
 	}
+	data->io_remap_addr += PCH_ADDRESS_SIZE * plat_dev->id;
 
 	dev_dbg(&plat_dev->dev, "[ch%d] remap_addr=%p\n",
 		plat_dev->id, data->io_remap_addr);
-- 
cgit 


From d3be689e6a07c00123786659b4429b07cf4272ac Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Tue, 24 Sep 2013 01:25:08 -0700
Subject: ASoC: rcar: remove unnecessary mach/clock.h

${LINUX}/sound/soc/sh driver can be compiled from
SuperH and ARM.
but, ${LINUX}/sound/soc/sh/rcar driver included
SH-ARM specific header.
This patch removes it

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/sh/rcar/adg.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sound/soc/sh/rcar/adg.c b/sound/soc/sh/rcar/adg.c
index d80deb7ccf13..2935bbf1811b 100644
--- a/sound/soc/sh/rcar/adg.c
+++ b/sound/soc/sh/rcar/adg.c
@@ -8,7 +8,6 @@
  * for more details.
  */
 #include <linux/sh_clk.h>
-#include <mach/clock.h>
 #include "rsnd.h"
 
 #define CLKA	0
-- 
cgit 


From 356d86e24850cdc353602b90be73e627f86707c7 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 23 Sep 2013 17:22:17 +0100
Subject: ASoC: max98088: Fix indentation

Tested-by: Dylan Reid <dgreid@chromium.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/max98088.c | 46 ++++++++++++++++++++++-----------------------
 1 file changed, 23 insertions(+), 23 deletions(-)

diff --git a/sound/soc/codecs/max98088.c b/sound/soc/codecs/max98088.c
index 566a367c94fa..391f66913a44 100644
--- a/sound/soc/codecs/max98088.c
+++ b/sound/soc/codecs/max98088.c
@@ -38,20 +38,20 @@ struct max98088_cdata {
 };
 
 struct max98088_priv {
-       enum max98088_type devtype;
-       struct max98088_pdata *pdata;
-       unsigned int sysclk;
-       struct max98088_cdata dai[2];
-       int eq_textcnt;
-       const char **eq_texts;
-       struct soc_enum eq_enum;
-       u8 ina_state;
-       u8 inb_state;
-       unsigned int ex_mode;
-       unsigned int digmic;
-       unsigned int mic1pre;
-       unsigned int mic2pre;
-       unsigned int extmic_mode;
+	enum max98088_type devtype;
+	struct max98088_pdata *pdata;
+	unsigned int sysclk;
+	struct max98088_cdata dai[2];
+	int eq_textcnt;
+	const char **eq_texts;
+	struct soc_enum eq_enum;
+	u8 ina_state;
+	u8 inb_state;
+	unsigned int ex_mode;
+	unsigned int digmic;
+	unsigned int mic1pre;
+	unsigned int mic2pre;
+	unsigned int extmic_mode;
 };
 
 static const u8 max98088_reg[M98088_REG_CNT] = {
@@ -2066,15 +2066,15 @@ static int max98088_remove(struct snd_soc_codec *codec)
 }
 
 static struct snd_soc_codec_driver soc_codec_dev_max98088 = {
-       .probe   = max98088_probe,
-       .remove  = max98088_remove,
-       .suspend = max98088_suspend,
-       .resume  = max98088_resume,
-       .set_bias_level = max98088_set_bias_level,
-       .reg_cache_size = ARRAY_SIZE(max98088_reg),
-       .reg_word_size = sizeof(u8),
-       .reg_cache_default = max98088_reg,
-       .volatile_register = max98088_volatile_register,
+	.probe   = max98088_probe,
+	.remove  = max98088_remove,
+	.suspend = max98088_suspend,
+	.resume  = max98088_resume,
+	.set_bias_level = max98088_set_bias_level,
+	.reg_cache_size = ARRAY_SIZE(max98088_reg),
+	.reg_word_size = sizeof(u8),
+	.reg_cache_default = max98088_reg,
+	.volatile_register = max98088_volatile_register,
 	.dapm_widgets = max98088_dapm_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(max98088_dapm_widgets),
 	.dapm_routes = max98088_audio_map,
-- 
cgit 


From ad65adf4a3039ecd93d4712ac6524dbd9e0e848a Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 23 Sep 2013 17:54:02 +0100
Subject: ASoC: max98088: Use table based control init

Tested-by: Dylan Reid <dgreid@chromium.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/max98088.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/max98088.c b/sound/soc/codecs/max98088.c
index 391f66913a44..8896d5e33980 100644
--- a/sound/soc/codecs/max98088.c
+++ b/sound/soc/codecs/max98088.c
@@ -2048,9 +2048,6 @@ static int max98088_probe(struct snd_soc_codec *codec)
 
        max98088_handle_pdata(codec);
 
-       snd_soc_add_codec_controls(codec, max98088_snd_controls,
-                            ARRAY_SIZE(max98088_snd_controls));
-
 err_access:
        return ret;
 }
@@ -2071,6 +2068,8 @@ static struct snd_soc_codec_driver soc_codec_dev_max98088 = {
 	.suspend = max98088_suspend,
 	.resume  = max98088_resume,
 	.set_bias_level = max98088_set_bias_level,
+	.controls = max98088_snd_controls,
+	.num_controls = ARRAY_SIZE(max98088_snd_controls),
 	.reg_cache_size = ARRAY_SIZE(max98088_reg),
 	.reg_word_size = sizeof(u8),
 	.reg_cache_default = max98088_reg,
-- 
cgit 


From 4127d5d59f8135e3c187b8daa2540691761938ce Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 23 Sep 2013 17:56:17 +0100
Subject: ASoC: max98088: Convert to direct regmap API usage

This saves code and moves us towards removing the redundant register I/O
implementation in ASoC.

Tested-by: Dylan Reid <dgreid@chromium.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/max98088.c | 580 +++++++++++++++++++-------------------------
 1 file changed, 251 insertions(+), 329 deletions(-)

diff --git a/sound/soc/codecs/max98088.c b/sound/soc/codecs/max98088.c
index 8896d5e33980..31912d59702c 100644
--- a/sound/soc/codecs/max98088.c
+++ b/sound/soc/codecs/max98088.c
@@ -15,6 +15,7 @@
 #include <linux/delay.h>
 #include <linux/pm.h>
 #include <linux/i2c.h>
+#include <linux/regmap.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -38,6 +39,7 @@ struct max98088_cdata {
 };
 
 struct max98088_priv {
+	struct regmap *regmap;
 	enum max98088_type devtype;
 	struct max98088_pdata *pdata;
 	unsigned int sysclk;
@@ -54,278 +56,206 @@ struct max98088_priv {
 	unsigned int extmic_mode;
 };
 
-static const u8 max98088_reg[M98088_REG_CNT] = {
-       0x00, /* 00 IRQ status */
-       0x00, /* 01 MIC status */
-       0x00, /* 02 jack status */
-       0x00, /* 03 battery voltage */
-       0x00, /* 04 */
-       0x00, /* 05 */
-       0x00, /* 06 */
-       0x00, /* 07 */
-       0x00, /* 08 */
-       0x00, /* 09 */
-       0x00, /* 0A */
-       0x00, /* 0B */
-       0x00, /* 0C */
-       0x00, /* 0D */
-       0x00, /* 0E */
-       0x00, /* 0F interrupt enable */
-
-       0x00, /* 10 master clock */
-       0x00, /* 11 DAI1 clock mode */
-       0x00, /* 12 DAI1 clock control */
-       0x00, /* 13 DAI1 clock control */
-       0x00, /* 14 DAI1 format */
-       0x00, /* 15 DAI1 clock */
-       0x00, /* 16 DAI1 config */
-       0x00, /* 17 DAI1 TDM */
-       0x00, /* 18 DAI1 filters */
-       0x00, /* 19 DAI2 clock mode */
-       0x00, /* 1A DAI2 clock control */
-       0x00, /* 1B DAI2 clock control */
-       0x00, /* 1C DAI2 format */
-       0x00, /* 1D DAI2 clock */
-       0x00, /* 1E DAI2 config */
-       0x00, /* 1F DAI2 TDM */
-
-       0x00, /* 20 DAI2 filters */
-       0x00, /* 21 data config */
-       0x00, /* 22 DAC mixer */
-       0x00, /* 23 left ADC mixer */
-       0x00, /* 24 right ADC mixer */
-       0x00, /* 25 left HP mixer */
-       0x00, /* 26 right HP mixer */
-       0x00, /* 27 HP control */
-       0x00, /* 28 left REC mixer */
-       0x00, /* 29 right REC mixer */
-       0x00, /* 2A REC control */
-       0x00, /* 2B left SPK mixer */
-       0x00, /* 2C right SPK mixer */
-       0x00, /* 2D SPK control */
-       0x00, /* 2E sidetone */
-       0x00, /* 2F DAI1 playback level */
-
-       0x00, /* 30 DAI1 playback level */
-       0x00, /* 31 DAI2 playback level */
-       0x00, /* 32 DAI2 playbakc level */
-       0x00, /* 33 left ADC level */
-       0x00, /* 34 right ADC level */
-       0x00, /* 35 MIC1 level */
-       0x00, /* 36 MIC2 level */
-       0x00, /* 37 INA level */
-       0x00, /* 38 INB level */
-       0x00, /* 39 left HP volume */
-       0x00, /* 3A right HP volume */
-       0x00, /* 3B left REC volume */
-       0x00, /* 3C right REC volume */
-       0x00, /* 3D left SPK volume */
-       0x00, /* 3E right SPK volume */
-       0x00, /* 3F MIC config */
-
-       0x00, /* 40 MIC threshold */
-       0x00, /* 41 excursion limiter filter */
-       0x00, /* 42 excursion limiter threshold */
-       0x00, /* 43 ALC */
-       0x00, /* 44 power limiter threshold */
-       0x00, /* 45 power limiter config */
-       0x00, /* 46 distortion limiter config */
-       0x00, /* 47 audio input */
-       0x00, /* 48 microphone */
-       0x00, /* 49 level control */
-       0x00, /* 4A bypass switches */
-       0x00, /* 4B jack detect */
-       0x00, /* 4C input enable */
-       0x00, /* 4D output enable */
-       0xF0, /* 4E bias control */
-       0x00, /* 4F DAC power */
-
-       0x0F, /* 50 DAC power */
-       0x00, /* 51 system */
-       0x00, /* 52 DAI1 EQ1 */
-       0x00, /* 53 DAI1 EQ1 */
-       0x00, /* 54 DAI1 EQ1 */
-       0x00, /* 55 DAI1 EQ1 */
-       0x00, /* 56 DAI1 EQ1 */
-       0x00, /* 57 DAI1 EQ1 */
-       0x00, /* 58 DAI1 EQ1 */
-       0x00, /* 59 DAI1 EQ1 */
-       0x00, /* 5A DAI1 EQ1 */
-       0x00, /* 5B DAI1 EQ1 */
-       0x00, /* 5C DAI1 EQ2 */
-       0x00, /* 5D DAI1 EQ2 */
-       0x00, /* 5E DAI1 EQ2 */
-       0x00, /* 5F DAI1 EQ2 */
-
-       0x00, /* 60 DAI1 EQ2 */
-       0x00, /* 61 DAI1 EQ2 */
-       0x00, /* 62 DAI1 EQ2 */
-       0x00, /* 63 DAI1 EQ2 */
-       0x00, /* 64 DAI1 EQ2 */
-       0x00, /* 65 DAI1 EQ2 */
-       0x00, /* 66 DAI1 EQ3 */
-       0x00, /* 67 DAI1 EQ3 */
-       0x00, /* 68 DAI1 EQ3 */
-       0x00, /* 69 DAI1 EQ3 */
-       0x00, /* 6A DAI1 EQ3 */
-       0x00, /* 6B DAI1 EQ3 */
-       0x00, /* 6C DAI1 EQ3 */
-       0x00, /* 6D DAI1 EQ3 */
-       0x00, /* 6E DAI1 EQ3 */
-       0x00, /* 6F DAI1 EQ3 */
-
-       0x00, /* 70 DAI1 EQ4 */
-       0x00, /* 71 DAI1 EQ4 */
-       0x00, /* 72 DAI1 EQ4 */
-       0x00, /* 73 DAI1 EQ4 */
-       0x00, /* 74 DAI1 EQ4 */
-       0x00, /* 75 DAI1 EQ4 */
-       0x00, /* 76 DAI1 EQ4 */
-       0x00, /* 77 DAI1 EQ4 */
-       0x00, /* 78 DAI1 EQ4 */
-       0x00, /* 79 DAI1 EQ4 */
-       0x00, /* 7A DAI1 EQ5 */
-       0x00, /* 7B DAI1 EQ5 */
-       0x00, /* 7C DAI1 EQ5 */
-       0x00, /* 7D DAI1 EQ5 */
-       0x00, /* 7E DAI1 EQ5 */
-       0x00, /* 7F DAI1 EQ5 */
-
-       0x00, /* 80 DAI1 EQ5 */
-       0x00, /* 81 DAI1 EQ5 */
-       0x00, /* 82 DAI1 EQ5 */
-       0x00, /* 83 DAI1 EQ5 */
-       0x00, /* 84 DAI2 EQ1 */
-       0x00, /* 85 DAI2 EQ1 */
-       0x00, /* 86 DAI2 EQ1 */
-       0x00, /* 87 DAI2 EQ1 */
-       0x00, /* 88 DAI2 EQ1 */
-       0x00, /* 89 DAI2 EQ1 */
-       0x00, /* 8A DAI2 EQ1 */
-       0x00, /* 8B DAI2 EQ1 */
-       0x00, /* 8C DAI2 EQ1 */
-       0x00, /* 8D DAI2 EQ1 */
-       0x00, /* 8E DAI2 EQ2 */
-       0x00, /* 8F DAI2 EQ2 */
-
-       0x00, /* 90 DAI2 EQ2 */
-       0x00, /* 91 DAI2 EQ2 */
-       0x00, /* 92 DAI2 EQ2 */
-       0x00, /* 93 DAI2 EQ2 */
-       0x00, /* 94 DAI2 EQ2 */
-       0x00, /* 95 DAI2 EQ2 */
-       0x00, /* 96 DAI2 EQ2 */
-       0x00, /* 97 DAI2 EQ2 */
-       0x00, /* 98 DAI2 EQ3 */
-       0x00, /* 99 DAI2 EQ3 */
-       0x00, /* 9A DAI2 EQ3 */
-       0x00, /* 9B DAI2 EQ3 */
-       0x00, /* 9C DAI2 EQ3 */
-       0x00, /* 9D DAI2 EQ3 */
-       0x00, /* 9E DAI2 EQ3 */
-       0x00, /* 9F DAI2 EQ3 */
-
-       0x00, /* A0 DAI2 EQ3 */
-       0x00, /* A1 DAI2 EQ3 */
-       0x00, /* A2 DAI2 EQ4 */
-       0x00, /* A3 DAI2 EQ4 */
-       0x00, /* A4 DAI2 EQ4 */
-       0x00, /* A5 DAI2 EQ4 */
-       0x00, /* A6 DAI2 EQ4 */
-       0x00, /* A7 DAI2 EQ4 */
-       0x00, /* A8 DAI2 EQ4 */
-       0x00, /* A9 DAI2 EQ4 */
-       0x00, /* AA DAI2 EQ4 */
-       0x00, /* AB DAI2 EQ4 */
-       0x00, /* AC DAI2 EQ5 */
-       0x00, /* AD DAI2 EQ5 */
-       0x00, /* AE DAI2 EQ5 */
-       0x00, /* AF DAI2 EQ5 */
-
-       0x00, /* B0 DAI2 EQ5 */
-       0x00, /* B1 DAI2 EQ5 */
-       0x00, /* B2 DAI2 EQ5 */
-       0x00, /* B3 DAI2 EQ5 */
-       0x00, /* B4 DAI2 EQ5 */
-       0x00, /* B5 DAI2 EQ5 */
-       0x00, /* B6 DAI1 biquad */
-       0x00, /* B7 DAI1 biquad */
-       0x00, /* B8 DAI1 biquad */
-       0x00, /* B9 DAI1 biquad */
-       0x00, /* BA DAI1 biquad */
-       0x00, /* BB DAI1 biquad */
-       0x00, /* BC DAI1 biquad */
-       0x00, /* BD DAI1 biquad */
-       0x00, /* BE DAI1 biquad */
-       0x00, /* BF DAI1 biquad */
-
-       0x00, /* C0 DAI2 biquad */
-       0x00, /* C1 DAI2 biquad */
-       0x00, /* C2 DAI2 biquad */
-       0x00, /* C3 DAI2 biquad */
-       0x00, /* C4 DAI2 biquad */
-       0x00, /* C5 DAI2 biquad */
-       0x00, /* C6 DAI2 biquad */
-       0x00, /* C7 DAI2 biquad */
-       0x00, /* C8 DAI2 biquad */
-       0x00, /* C9 DAI2 biquad */
-       0x00, /* CA */
-       0x00, /* CB */
-       0x00, /* CC */
-       0x00, /* CD */
-       0x00, /* CE */
-       0x00, /* CF */
-
-       0x00, /* D0 */
-       0x00, /* D1 */
-       0x00, /* D2 */
-       0x00, /* D3 */
-       0x00, /* D4 */
-       0x00, /* D5 */
-       0x00, /* D6 */
-       0x00, /* D7 */
-       0x00, /* D8 */
-       0x00, /* D9 */
-       0x00, /* DA */
-       0x70, /* DB */
-       0x00, /* DC */
-       0x00, /* DD */
-       0x00, /* DE */
-       0x00, /* DF */
-
-       0x00, /* E0 */
-       0x00, /* E1 */
-       0x00, /* E2 */
-       0x00, /* E3 */
-       0x00, /* E4 */
-       0x00, /* E5 */
-       0x00, /* E6 */
-       0x00, /* E7 */
-       0x00, /* E8 */
-       0x00, /* E9 */
-       0x00, /* EA */
-       0x00, /* EB */
-       0x00, /* EC */
-       0x00, /* ED */
-       0x00, /* EE */
-       0x00, /* EF */
-
-       0x00, /* F0 */
-       0x00, /* F1 */
-       0x00, /* F2 */
-       0x00, /* F3 */
-       0x00, /* F4 */
-       0x00, /* F5 */
-       0x00, /* F6 */
-       0x00, /* F7 */
-       0x00, /* F8 */
-       0x00, /* F9 */
-       0x00, /* FA */
-       0x00, /* FB */
-       0x00, /* FC */
-       0x00, /* FD */
-       0x00, /* FE */
-       0x00, /* FF */
+static const struct reg_default max98088_reg[] = {
+	{  0xf, 0x00 }, /* 0F interrupt enable */
+
+	{ 0x10, 0x00 }, /* 10 master clock */
+	{ 0x11, 0x00 }, /* 11 DAI1 clock mode */
+	{ 0x12, 0x00 }, /* 12 DAI1 clock control */
+	{ 0x13, 0x00 }, /* 13 DAI1 clock control */
+	{ 0x14, 0x00 }, /* 14 DAI1 format */
+	{ 0x15, 0x00 }, /* 15 DAI1 clock */
+	{ 0x16, 0x00 }, /* 16 DAI1 config */
+	{ 0x17, 0x00 }, /* 17 DAI1 TDM */
+	{ 0x18, 0x00 }, /* 18 DAI1 filters */
+	{ 0x19, 0x00 }, /* 19 DAI2 clock mode */
+	{ 0x1a, 0x00 }, /* 1A DAI2 clock control */
+	{ 0x1b, 0x00 }, /* 1B DAI2 clock control */
+	{ 0x1c, 0x00 }, /* 1C DAI2 format */
+	{ 0x1d, 0x00 }, /* 1D DAI2 clock */
+	{ 0x1e, 0x00 }, /* 1E DAI2 config */
+	{ 0x1f, 0x00 }, /* 1F DAI2 TDM */
+
+	{ 0x20, 0x00 }, /* 20 DAI2 filters */
+	{ 0x21, 0x00 }, /* 21 data config */
+	{ 0x22, 0x00 }, /* 22 DAC mixer */
+	{ 0x23, 0x00 }, /* 23 left ADC mixer */
+	{ 0x24, 0x00 }, /* 24 right ADC mixer */
+	{ 0x25, 0x00 }, /* 25 left HP mixer */
+	{ 0x26, 0x00 }, /* 26 right HP mixer */
+	{ 0x27, 0x00 }, /* 27 HP control */
+	{ 0x28, 0x00 }, /* 28 left REC mixer */
+	{ 0x29, 0x00 }, /* 29 right REC mixer */
+	{ 0x2a, 0x00 }, /* 2A REC control */
+	{ 0x2b, 0x00 }, /* 2B left SPK mixer */
+	{ 0x2c, 0x00 }, /* 2C right SPK mixer */
+	{ 0x2d, 0x00 }, /* 2D SPK control */
+	{ 0x2e, 0x00 }, /* 2E sidetone */
+	{ 0x2f, 0x00 }, /* 2F DAI1 playback level */
+
+	{ 0x30, 0x00 }, /* 30 DAI1 playback level */
+	{ 0x31, 0x00 }, /* 31 DAI2 playback level */
+	{ 0x32, 0x00 }, /* 32 DAI2 playbakc level */
+	{ 0x33, 0x00 }, /* 33 left ADC level */
+	{ 0x34, 0x00 }, /* 34 right ADC level */
+	{ 0x35, 0x00 }, /* 35 MIC1 level */
+	{ 0x36, 0x00 }, /* 36 MIC2 level */
+	{ 0x37, 0x00 }, /* 37 INA level */
+	{ 0x38, 0x00 }, /* 38 INB level */
+	{ 0x39, 0x00 }, /* 39 left HP volume */
+	{ 0x3a, 0x00 }, /* 3A right HP volume */
+	{ 0x3b, 0x00 }, /* 3B left REC volume */
+	{ 0x3c, 0x00 }, /* 3C right REC volume */
+	{ 0x3d, 0x00 }, /* 3D left SPK volume */
+	{ 0x3e, 0x00 }, /* 3E right SPK volume */
+	{ 0x3f, 0x00 }, /* 3F MIC config */
+
+	{ 0x40, 0x00 }, /* 40 MIC threshold */
+	{ 0x41, 0x00 }, /* 41 excursion limiter filter */
+	{ 0x42, 0x00 }, /* 42 excursion limiter threshold */
+	{ 0x43, 0x00 }, /* 43 ALC */
+	{ 0x44, 0x00 }, /* 44 power limiter threshold */
+	{ 0x45, 0x00 }, /* 45 power limiter config */
+	{ 0x46, 0x00 }, /* 46 distortion limiter config */
+	{ 0x47, 0x00 }, /* 47 audio input */
+        { 0x48, 0x00 }, /* 48 microphone */
+	{ 0x49, 0x00 }, /* 49 level control */
+	{ 0x4a, 0x00 }, /* 4A bypass switches */
+	{ 0x4b, 0x00 }, /* 4B jack detect */
+	{ 0x4c, 0x00 }, /* 4C input enable */
+	{ 0x4d, 0x00 }, /* 4D output enable */
+	{ 0x4e, 0xF0 }, /* 4E bias control */
+	{ 0x4f, 0x00 }, /* 4F DAC power */
+
+	{ 0x50, 0x0F }, /* 50 DAC power */
+	{ 0x51, 0x00 }, /* 51 system */
+	{ 0x52, 0x00 }, /* 52 DAI1 EQ1 */
+	{ 0x53, 0x00 }, /* 53 DAI1 EQ1 */
+	{ 0x54, 0x00 }, /* 54 DAI1 EQ1 */
+	{ 0x55, 0x00 }, /* 55 DAI1 EQ1 */
+	{ 0x56, 0x00 }, /* 56 DAI1 EQ1 */
+	{ 0x57, 0x00 }, /* 57 DAI1 EQ1 */
+	{ 0x58, 0x00 }, /* 58 DAI1 EQ1 */
+	{ 0x59, 0x00 }, /* 59 DAI1 EQ1 */
+	{ 0x5a, 0x00 }, /* 5A DAI1 EQ1 */
+	{ 0x5b, 0x00 }, /* 5B DAI1 EQ1 */
+	{ 0x5c, 0x00 }, /* 5C DAI1 EQ2 */
+	{ 0x5d, 0x00 }, /* 5D DAI1 EQ2 */
+	{ 0x5e, 0x00 }, /* 5E DAI1 EQ2 */
+	{ 0x5f, 0x00 }, /* 5F DAI1 EQ2 */
+
+	{ 0x60, 0x00 }, /* 60 DAI1 EQ2 */
+	{ 0x61, 0x00 }, /* 61 DAI1 EQ2 */
+	{ 0x62, 0x00 }, /* 62 DAI1 EQ2 */
+	{ 0x63, 0x00 }, /* 63 DAI1 EQ2 */
+	{ 0x64, 0x00 }, /* 64 DAI1 EQ2 */
+	{ 0x65, 0x00 }, /* 65 DAI1 EQ2 */
+	{ 0x66, 0x00 }, /* 66 DAI1 EQ3 */
+	{ 0x67, 0x00 }, /* 67 DAI1 EQ3 */
+	{ 0x68, 0x00 }, /* 68 DAI1 EQ3 */
+	{ 0x69, 0x00 }, /* 69 DAI1 EQ3 */
+	{ 0x6a, 0x00 }, /* 6A DAI1 EQ3 */
+	{ 0x6b, 0x00 }, /* 6B DAI1 EQ3 */
+	{ 0x6c, 0x00 }, /* 6C DAI1 EQ3 */
+	{ 0x6d, 0x00 }, /* 6D DAI1 EQ3 */
+	{ 0x6e, 0x00 }, /* 6E DAI1 EQ3 */
+	{ 0x6f, 0x00 }, /* 6F DAI1 EQ3 */
+
+	{ 0x70, 0x00 }, /* 70 DAI1 EQ4 */
+	{ 0x71, 0x00 }, /* 71 DAI1 EQ4 */
+	{ 0x72, 0x00 }, /* 72 DAI1 EQ4 */
+	{ 0x73, 0x00 }, /* 73 DAI1 EQ4 */
+	{ 0x74, 0x00 }, /* 74 DAI1 EQ4 */
+	{ 0x75, 0x00 }, /* 75 DAI1 EQ4 */
+	{ 0x76, 0x00 }, /* 76 DAI1 EQ4 */
+	{ 0x77, 0x00 }, /* 77 DAI1 EQ4 */
+	{ 0x78, 0x00 }, /* 78 DAI1 EQ4 */
+	{ 0x79, 0x00 }, /* 79 DAI1 EQ4 */
+	{ 0x7a, 0x00 }, /* 7A DAI1 EQ5 */
+	{ 0x7b, 0x00 }, /* 7B DAI1 EQ5 */
+	{ 0x7c, 0x00 }, /* 7C DAI1 EQ5 */
+	{ 0x7d, 0x00 }, /* 7D DAI1 EQ5 */
+	{ 0x7e, 0x00 }, /* 7E DAI1 EQ5 */
+	{ 0x7f, 0x00 }, /* 7F DAI1 EQ5 */
+
+	{ 0x80, 0x00 }, /* 80 DAI1 EQ5 */
+	{ 0x81, 0x00 }, /* 81 DAI1 EQ5 */
+	{ 0x82, 0x00 }, /* 82 DAI1 EQ5 */
+	{ 0x83, 0x00 }, /* 83 DAI1 EQ5 */
+	{ 0x84, 0x00 }, /* 84 DAI2 EQ1 */
+	{ 0x85, 0x00 }, /* 85 DAI2 EQ1 */
+	{ 0x86, 0x00 }, /* 86 DAI2 EQ1 */
+	{ 0x87, 0x00 }, /* 87 DAI2 EQ1 */
+	{ 0x88, 0x00 }, /* 88 DAI2 EQ1 */
+	{ 0x89, 0x00 }, /* 89 DAI2 EQ1 */
+	{ 0x8a, 0x00 }, /* 8A DAI2 EQ1 */
+	{ 0x8b, 0x00 }, /* 8B DAI2 EQ1 */
+	{ 0x8c, 0x00 }, /* 8C DAI2 EQ1 */
+	{ 0x8d, 0x00 }, /* 8D DAI2 EQ1 */
+	{ 0x8e, 0x00 }, /* 8E DAI2 EQ2 */
+	{ 0x8f, 0x00 }, /* 8F DAI2 EQ2 */
+
+	{ 0x90, 0x00 }, /* 90 DAI2 EQ2 */
+	{ 0x91, 0x00 }, /* 91 DAI2 EQ2 */
+	{ 0x92, 0x00 }, /* 92 DAI2 EQ2 */
+	{ 0x93, 0x00 }, /* 93 DAI2 EQ2 */
+	{ 0x94, 0x00 }, /* 94 DAI2 EQ2 */
+	{ 0x95, 0x00 }, /* 95 DAI2 EQ2 */
+	{ 0x96, 0x00 }, /* 96 DAI2 EQ2 */
+	{ 0x97, 0x00 }, /* 97 DAI2 EQ2 */
+	{ 0x98, 0x00 }, /* 98 DAI2 EQ3 */
+	{ 0x99, 0x00 }, /* 99 DAI2 EQ3 */
+	{ 0x9a, 0x00 }, /* 9A DAI2 EQ3 */
+        { 0x9b, 0x00 }, /* 9B DAI2 EQ3 */
+	{ 0x9c, 0x00 }, /* 9C DAI2 EQ3 */
+	{ 0x9d, 0x00 }, /* 9D DAI2 EQ3 */
+	{ 0x9e, 0x00 }, /* 9E DAI2 EQ3 */
+	{ 0x9f, 0x00 }, /* 9F DAI2 EQ3 */
+
+	{ 0xa0, 0x00 }, /* A0 DAI2 EQ3 */
+	{ 0xa1, 0x00 }, /* A1 DAI2 EQ3 */
+	{ 0xa2, 0x00 }, /* A2 DAI2 EQ4 */
+	{ 0xa3, 0x00 }, /* A3 DAI2 EQ4 */
+	{ 0xa4, 0x00 }, /* A4 DAI2 EQ4 */
+	{ 0xa5, 0x00 }, /* A5 DAI2 EQ4 */
+	{ 0xa6, 0x00 }, /* A6 DAI2 EQ4 */
+	{ 0xa7, 0x00 }, /* A7 DAI2 EQ4 */
+	{ 0xa8, 0x00 }, /* A8 DAI2 EQ4 */
+	{ 0xa9, 0x00 }, /* A9 DAI2 EQ4 */
+	{ 0xaa, 0x00 }, /* AA DAI2 EQ4 */
+	{ 0xab, 0x00 }, /* AB DAI2 EQ4 */
+	{ 0xac, 0x00 }, /* AC DAI2 EQ5 */
+	{ 0xad, 0x00 }, /* AD DAI2 EQ5 */
+	{ 0xae, 0x00 }, /* AE DAI2 EQ5 */
+	{ 0xaf, 0x00 }, /* AF DAI2 EQ5 */
+
+	{ 0xb0, 0x00 }, /* B0 DAI2 EQ5 */
+	{ 0xb1, 0x00 }, /* B1 DAI2 EQ5 */
+	{ 0xb2, 0x00 }, /* B2 DAI2 EQ5 */
+	{ 0xb3, 0x00 }, /* B3 DAI2 EQ5 */
+	{ 0xb4, 0x00 }, /* B4 DAI2 EQ5 */
+	{ 0xb5, 0x00 }, /* B5 DAI2 EQ5 */
+	{ 0xb6, 0x00 }, /* B6 DAI1 biquad */
+	{ 0xb7, 0x00 }, /* B7 DAI1 biquad */
+	{ 0xb8 ,0x00 }, /* B8 DAI1 biquad */
+	{ 0xb9, 0x00 }, /* B9 DAI1 biquad */
+	{ 0xba, 0x00 }, /* BA DAI1 biquad */
+	{ 0xbb, 0x00 }, /* BB DAI1 biquad */
+	{ 0xbc, 0x00 }, /* BC DAI1 biquad */
+	{ 0xbd, 0x00 }, /* BD DAI1 biquad */
+	{ 0xbe, 0x00 }, /* BE DAI1 biquad */
+        { 0xbf, 0x00 }, /* BF DAI1 biquad */
+
+	{ 0xc0, 0x00 }, /* C0 DAI2 biquad */
+	{ 0xc1, 0x00 }, /* C1 DAI2 biquad */
+	{ 0xc2, 0x00 }, /* C2 DAI2 biquad */
+	{ 0xc3, 0x00 }, /* C3 DAI2 biquad */
+	{ 0xc4, 0x00 }, /* C4 DAI2 biquad */
+	{ 0xc5, 0x00 }, /* C5 DAI2 biquad */
+	{ 0xc6, 0x00 }, /* C6 DAI2 biquad */
+	{ 0xc7, 0x00 }, /* C7 DAI2 biquad */
+	{ 0xc8, 0x00 }, /* C8 DAI2 biquad */
+	{ 0xc9, 0x00 }, /* C9 DAI2 biquad */
 };
 
 static struct {
@@ -606,11 +536,27 @@ static struct {
        { 0xFF, 0x00, 1 }, /* FF */
 };
 
-static int max98088_volatile_register(struct snd_soc_codec *codec, unsigned int reg)
+static bool max98088_readable_register(struct device *dev, unsigned int reg)
+{
+       return max98088_access[reg].readable;
+}
+
+static bool max98088_volatile_register(struct device *dev, unsigned int reg)
 {
        return max98088_access[reg].vol;
 }
 
+static const struct regmap_config max98088_regmap = {
+	.reg_bits = 8,
+	.val_bits = 8,
+
+	.readable_reg = max98088_readable_register,
+	.volatile_reg = max98088_volatile_register,
+
+	.reg_defaults = max98088_reg,
+	.num_reg_defaults = ARRAY_SIZE(max98088_reg),
+	.cache_type = REGCACHE_RBTREE,
+};
 
 /*
  * Load equalizer DSP coefficient configurations registers
@@ -1610,58 +1556,34 @@ static int max98088_dai2_digital_mute(struct snd_soc_dai *codec_dai, int mute)
        return 0;
 }
 
-static void max98088_sync_cache(struct snd_soc_codec *codec)
-{
-       u8 *reg_cache = codec->reg_cache;
-       int i;
-
-       if (!codec->cache_sync)
-               return;
-
-       codec->cache_only = 0;
-
-       /* write back cached values if they're writeable and
-        * different from the hardware default.
-        */
-       for (i = 1; i < codec->driver->reg_cache_size; i++) {
-               if (!max98088_access[i].writable)
-                       continue;
-
-               if (reg_cache[i] == max98088_reg[i])
-                       continue;
-
-               snd_soc_write(codec, i, reg_cache[i]);
-       }
-
-       codec->cache_sync = 0;
-}
-
 static int max98088_set_bias_level(struct snd_soc_codec *codec,
                                   enum snd_soc_bias_level level)
 {
-       switch (level) {
-       case SND_SOC_BIAS_ON:
-               break;
-
-       case SND_SOC_BIAS_PREPARE:
-               break;
-
-       case SND_SOC_BIAS_STANDBY:
-               if (codec->dapm.bias_level == SND_SOC_BIAS_OFF)
-                       max98088_sync_cache(codec);
-
-               snd_soc_update_bits(codec, M98088_REG_4C_PWR_EN_IN,
-                               M98088_MBEN, M98088_MBEN);
-               break;
-
-       case SND_SOC_BIAS_OFF:
-               snd_soc_update_bits(codec, M98088_REG_4C_PWR_EN_IN,
-                               M98088_MBEN, 0);
-               codec->cache_sync = 1;
-               break;
-       }
-       codec->dapm.bias_level = level;
-       return 0;
+	struct max98088_priv *max98088 = snd_soc_codec_get_drvdata(codec);
+
+	switch (level) {
+	case SND_SOC_BIAS_ON:
+		break;
+
+	case SND_SOC_BIAS_PREPARE:
+		break;
+
+	case SND_SOC_BIAS_STANDBY:
+		if (codec->dapm.bias_level == SND_SOC_BIAS_OFF)
+			regcache_sync(max98088->regmap);
+
+		snd_soc_update_bits(codec, M98088_REG_4C_PWR_EN_IN,
+				   M98088_MBEN, M98088_MBEN);
+		break;
+
+	case SND_SOC_BIAS_OFF:
+		snd_soc_update_bits(codec, M98088_REG_4C_PWR_EN_IN,
+				    M98088_MBEN, 0);
+		regcache_mark_dirty(max98088->regmap);
+		break;
+	}
+	codec->dapm.bias_level = level;
+	return 0;
 }
 
 #define MAX98088_RATES SNDRV_PCM_RATE_8000_96000
@@ -1988,9 +1910,9 @@ static int max98088_probe(struct snd_soc_codec *codec)
        struct max98088_cdata *cdata;
        int ret = 0;
 
-       codec->cache_sync = 1;
+       regcache_mark_dirty(max98088->regmap);
 
-       ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_I2C);
+       ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_REGMAP);
        if (ret != 0) {
                dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
                return ret;
@@ -2070,10 +1992,6 @@ static struct snd_soc_codec_driver soc_codec_dev_max98088 = {
 	.set_bias_level = max98088_set_bias_level,
 	.controls = max98088_snd_controls,
 	.num_controls = ARRAY_SIZE(max98088_snd_controls),
-	.reg_cache_size = ARRAY_SIZE(max98088_reg),
-	.reg_word_size = sizeof(u8),
-	.reg_cache_default = max98088_reg,
-	.volatile_register = max98088_volatile_register,
 	.dapm_widgets = max98088_dapm_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(max98088_dapm_widgets),
 	.dapm_routes = max98088_audio_map,
@@ -2081,7 +1999,7 @@ static struct snd_soc_codec_driver soc_codec_dev_max98088 = {
 };
 
 static int max98088_i2c_probe(struct i2c_client *i2c,
-                            const struct i2c_device_id *id)
+			      const struct i2c_device_id *id)
 {
        struct max98088_priv *max98088;
        int ret;
@@ -2091,6 +2009,10 @@ static int max98088_i2c_probe(struct i2c_client *i2c,
        if (max98088 == NULL)
                return -ENOMEM;
 
+       max98088->regmap = devm_regmap_init_i2c(i2c, &max98088_regmap);
+       if (IS_ERR(max98088->regmap))
+	       return PTR_ERR(max98088->regmap);
+
        max98088->devtype = id->driver_data;
 
        i2c_set_clientdata(i2c, max98088);
-- 
cgit 


From 3ad8219a50eab201abf89b25d7797d6695b73e4e Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 26 Aug 2013 01:51:22 -0700
Subject: sh-pfc: r8a7778: Add SRU/SSI pin support

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/pinctrl/sh-pfc/pfc-r8a7778.c | 125 +++++++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)

diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7778.c b/drivers/pinctrl/sh-pfc/pfc-r8a7778.c
index 428d2a6857ef..20b1d0d671a3 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a7778.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a7778.c
@@ -1288,6 +1288,22 @@ static struct sh_pfc_pin pinmux_pins[] = {
 						     arg5##_MARK, arg6##_MARK, \
 						     arg7##_MARK, arg8##_MARK, }
 
+/* - AUDIO macro -------------------------------------------------------------*/
+#define AUDIO_PFC_PIN(name, pin)	SH_PFC_PINS(name, pin)
+#define AUDIO_PFC_DAT(name, pin)	SH_PFC_MUX1(name, pin)
+
+/* - AUDIO clock -------------------------------------------------------------*/
+AUDIO_PFC_PIN(audio_clk_a,	RCAR_GP_PIN(2, 22));
+AUDIO_PFC_DAT(audio_clk_a,	AUDIO_CLKA);
+AUDIO_PFC_PIN(audio_clk_b,	RCAR_GP_PIN(2, 23));
+AUDIO_PFC_DAT(audio_clk_b,	AUDIO_CLKB);
+AUDIO_PFC_PIN(audio_clk_c,	RCAR_GP_PIN(2, 7));
+AUDIO_PFC_DAT(audio_clk_c,	AUDIO_CLKC);
+AUDIO_PFC_PIN(audio_clkout_a,	RCAR_GP_PIN(2, 16));
+AUDIO_PFC_DAT(audio_clkout_a,	AUDIO_CLKOUT_A);
+AUDIO_PFC_PIN(audio_clkout_b,	RCAR_GP_PIN(1, 16));
+AUDIO_PFC_DAT(audio_clkout_b,	AUDIO_CLKOUT_B);
+
 /* - Ether ------------------------------------------------------------------ */
 SH_PFC_PINS(ether_rmii,		RCAR_GP_PIN(4, 10),	RCAR_GP_PIN(4, 11),
 				RCAR_GP_PIN(4, 13),	RCAR_GP_PIN(4, 9),
@@ -1577,6 +1593,59 @@ SDHI_PFC_WPPN(sdhi2_wp_a,	SD2_WP_A);
 SDHI_PFC_PINS(sdhi2_wp_b,	RCAR_GP_PIN(3, 28));
 SDHI_PFC_WPPN(sdhi2_wp_b,	SD2_WP_B);
 
+/* - SSI macro -------------------------------------------------------------- */
+#define SSI_PFC_PINS(name, args...)		SH_PFC_PINS(name, args)
+#define SSI_PFC_CTRL(name, sck, ws)		SH_PFC_MUX2(name, sck, ws)
+#define SSI_PFC_DATA(name, d)			SH_PFC_MUX1(name, d)
+
+/* - SSI 0/1/2 -------------------------------------------------------------- */
+SSI_PFC_PINS(ssi012_ctrl,	RCAR_GP_PIN(3, 6),	RCAR_GP_PIN(3, 7));
+SSI_PFC_CTRL(ssi012_ctrl,	SSI_SCK012,		SSI_WS012);
+SSI_PFC_PINS(ssi0_data,		RCAR_GP_PIN(3, 10));
+SSI_PFC_DATA(ssi0_data,		SSI_SDATA0);
+SSI_PFC_PINS(ssi1_a_ctrl,	RCAR_GP_PIN(2, 20),	RCAR_GP_PIN(2, 21));
+SSI_PFC_CTRL(ssi1_a_ctrl,	SSI_SCK1_A,		SSI_WS1_A);
+SSI_PFC_PINS(ssi1_b_ctrl,	PIN_NUMBER(3, 20),	RCAR_GP_PIN(1, 3));
+SSI_PFC_CTRL(ssi1_b_ctrl,	SSI_SCK1_B,		SSI_WS1_B);
+SSI_PFC_PINS(ssi1_data,		RCAR_GP_PIN(3, 9));
+SSI_PFC_DATA(ssi1_data,		SSI_SDATA1);
+SSI_PFC_PINS(ssi2_a_ctrl,	RCAR_GP_PIN(2, 26),	RCAR_GP_PIN(3, 4));
+SSI_PFC_CTRL(ssi2_a_ctrl,	SSI_SCK2_A,		SSI_WS2_A);
+SSI_PFC_PINS(ssi2_b_ctrl,	RCAR_GP_PIN(2, 6),	RCAR_GP_PIN(2, 17));
+SSI_PFC_CTRL(ssi2_b_ctrl,	SSI_SCK2_B,		SSI_WS2_B);
+SSI_PFC_PINS(ssi2_data,		RCAR_GP_PIN(3, 8));
+SSI_PFC_DATA(ssi2_data,		SSI_SDATA2);
+
+/* - SSI 3/4 ---------------------------------------------------------------- */
+SSI_PFC_PINS(ssi34_ctrl,	RCAR_GP_PIN(3, 2),	RCAR_GP_PIN(3, 3));
+SSI_PFC_CTRL(ssi34_ctrl,	SSI_SCK34,		SSI_WS34);
+SSI_PFC_PINS(ssi3_data,		RCAR_GP_PIN(3, 5));
+SSI_PFC_DATA(ssi3_data,		SSI_SDATA3);
+SSI_PFC_PINS(ssi4_ctrl,		RCAR_GP_PIN(1, 22),     RCAR_GP_PIN(1, 23));
+SSI_PFC_CTRL(ssi4_ctrl,		SSI_SCK4,               SSI_WS4);
+SSI_PFC_PINS(ssi4_data,		RCAR_GP_PIN(3, 4));
+SSI_PFC_DATA(ssi4_data,		SSI_SDATA4);
+
+/* - SSI 5 ------------------------------------------------------------------ */
+SSI_PFC_PINS(ssi5_ctrl,		RCAR_GP_PIN(2, 31),	RCAR_GP_PIN(3, 0));
+SSI_PFC_CTRL(ssi5_ctrl,		SSI_SCK5,		SSI_WS5);
+SSI_PFC_PINS(ssi5_data,		RCAR_GP_PIN(3, 1));
+SSI_PFC_DATA(ssi5_data,		SSI_SDATA5);
+
+/* - SSI 6 ------------------------------------------------------------------ */
+SSI_PFC_PINS(ssi6_ctrl,		RCAR_GP_PIN(2, 28),	RCAR_GP_PIN(2, 29));
+SSI_PFC_CTRL(ssi6_ctrl,		SSI_SCK6,		SSI_WS6);
+SSI_PFC_PINS(ssi6_data,		RCAR_GP_PIN(2, 30));
+SSI_PFC_DATA(ssi6_data,		SSI_SDATA6);
+
+/* - SSI 7/8  --------------------------------------------------------------- */
+SSI_PFC_PINS(ssi78_ctrl,	RCAR_GP_PIN(2, 24),	RCAR_GP_PIN(2, 25));
+SSI_PFC_CTRL(ssi78_ctrl,	SSI_SCK78,		SSI_WS78);
+SSI_PFC_PINS(ssi7_data,		RCAR_GP_PIN(2, 27));
+SSI_PFC_DATA(ssi7_data,		SSI_SDATA7);
+SSI_PFC_PINS(ssi8_data,		RCAR_GP_PIN(2, 26));
+SSI_PFC_DATA(ssi8_data,		SSI_SDATA8);
+
 /* - USB0 ------------------------------------------------------------------- */
 SH_PFC_PINS(usb0,		RCAR_GP_PIN(0, 1));
 SH_PFC_MUX1(usb0,		PENC0);
@@ -1624,6 +1693,11 @@ VIN_PFC_PINS(vin1_sync,		RCAR_GP_PIN(3, 21),	RCAR_GP_PIN(3, 22));
 VIN_PFC_SYNC(vin1_sync,		VI1_HSYNC,		VI1_VSYNC);
 
 static const struct sh_pfc_pin_group pinmux_groups[] = {
+	SH_PFC_PIN_GROUP(audio_clk_a),
+	SH_PFC_PIN_GROUP(audio_clk_b),
+	SH_PFC_PIN_GROUP(audio_clk_c),
+	SH_PFC_PIN_GROUP(audio_clkout_a),
+	SH_PFC_PIN_GROUP(audio_clkout_b),
 	SH_PFC_PIN_GROUP(ether_rmii),
 	SH_PFC_PIN_GROUP(ether_link),
 	SH_PFC_PIN_GROUP(ether_magic),
@@ -1713,6 +1787,25 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
 	SH_PFC_PIN_GROUP(sdhi2_data4_b),
 	SH_PFC_PIN_GROUP(sdhi2_wp_a),
 	SH_PFC_PIN_GROUP(sdhi2_wp_b),
+	SH_PFC_PIN_GROUP(ssi012_ctrl),
+	SH_PFC_PIN_GROUP(ssi0_data),
+	SH_PFC_PIN_GROUP(ssi1_a_ctrl),
+	SH_PFC_PIN_GROUP(ssi1_b_ctrl),
+	SH_PFC_PIN_GROUP(ssi1_data),
+	SH_PFC_PIN_GROUP(ssi2_a_ctrl),
+	SH_PFC_PIN_GROUP(ssi2_b_ctrl),
+	SH_PFC_PIN_GROUP(ssi2_data),
+	SH_PFC_PIN_GROUP(ssi34_ctrl),
+	SH_PFC_PIN_GROUP(ssi3_data),
+	SH_PFC_PIN_GROUP(ssi4_ctrl),
+	SH_PFC_PIN_GROUP(ssi4_data),
+	SH_PFC_PIN_GROUP(ssi5_ctrl),
+	SH_PFC_PIN_GROUP(ssi5_data),
+	SH_PFC_PIN_GROUP(ssi6_ctrl),
+	SH_PFC_PIN_GROUP(ssi6_data),
+	SH_PFC_PIN_GROUP(ssi78_ctrl),
+	SH_PFC_PIN_GROUP(ssi7_data),
+	SH_PFC_PIN_GROUP(ssi8_data),
 	SH_PFC_PIN_GROUP(usb0),
 	SH_PFC_PIN_GROUP(usb0_ovc),
 	SH_PFC_PIN_GROUP(usb1),
@@ -1725,6 +1818,14 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
 	SH_PFC_PIN_GROUP(vin1_sync),
 };
 
+static const char * const audio_clk_groups[] = {
+	"audio_clk_a",
+	"audio_clk_b",
+	"audio_clk_c",
+	"audio_clkout_a",
+	"audio_clkout_b",
+};
+
 static const char * const ether_groups[] = {
 	"ether_rmii",
 	"ether_link",
@@ -1875,6 +1976,28 @@ static const char * const sdhi2_groups[] = {
 	"sdhi2_wp_b",
 };
 
+static const char * const ssi_groups[] = {
+	"ssi012_ctrl",
+	"ssi0_data",
+	"ssi1_a_ctrl",
+	"ssi1_b_ctrl",
+	"ssi1_data",
+	"ssi2_a_ctrl",
+	"ssi2_b_ctrl",
+	"ssi2_data",
+	"ssi34_ctrl",
+	"ssi3_data",
+	"ssi4_ctrl",
+	"ssi4_data",
+	"ssi5_ctrl",
+	"ssi5_data",
+	"ssi6_ctrl",
+	"ssi6_data",
+	"ssi78_ctrl",
+	"ssi7_data",
+	"ssi8_data",
+};
+
 static const char * const usb0_groups[] = {
 	"usb0",
 	"usb0_ovc",
@@ -1898,6 +2021,7 @@ static const char * const vin1_groups[] = {
 };
 
 static const struct sh_pfc_function pinmux_functions[] = {
+	SH_PFC_FUNCTION(audio_clk),
 	SH_PFC_FUNCTION(ether),
 	SH_PFC_FUNCTION(hscif0),
 	SH_PFC_FUNCTION(hscif1),
@@ -1918,6 +2042,7 @@ static const struct sh_pfc_function pinmux_functions[] = {
 	SH_PFC_FUNCTION(sdhi0),
 	SH_PFC_FUNCTION(sdhi1),
 	SH_PFC_FUNCTION(sdhi2),
+	SH_PFC_FUNCTION(ssi),
 	SH_PFC_FUNCTION(usb0),
 	SH_PFC_FUNCTION(usb1),
 	SH_PFC_FUNCTION(vin0),
-- 
cgit 


From 70702bfc13c4f96f2f05d4ce2eb110cd1735fef5 Mon Sep 17 00:00:00 2001
From: Ulrich Hecht <ulrich.hecht@gmail.com>
Date: Fri, 30 Aug 2013 14:37:41 +0200
Subject: sh-pfc: r8a7790: Add I2C pin groups and functions

Adds pinmux for i2c bus 1 and 2. (Pins for 0 and 3 are not multiplexed.)

Signed-off-by: Ulrich Hecht <ulrich.hecht@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/pinctrl/sh-pfc/pfc-r8a7790.c | 82 ++++++++++++++++++++++++++++++++++++
 1 file changed, 82 insertions(+)

diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7790.c b/drivers/pinctrl/sh-pfc/pfc-r8a7790.c
index 64fcc00693b5..5c2657bcc3a4 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a7790.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a7790.c
@@ -1990,6 +1990,64 @@ static const unsigned int hscif1_ctrl_b_pins[] = {
 static const unsigned int hscif1_ctrl_b_mux[] = {
 	HRTS1_N_B_MARK, HCTS1_N_B_MARK,
 };
+/* - I2C1 ------------------------------------------------------------------- */
+static const unsigned int i2c1_pins[] = {
+	/* SCL, SDA */
+	RCAR_GP_PIN(1, 16), RCAR_GP_PIN(1, 17),
+};
+static const unsigned int i2c1_mux[] = {
+	I2C1_SCL_MARK, I2C1_SDA_MARK,
+};
+static const unsigned int i2c1_b_pins[] = {
+	/* SCL, SDA */
+	RCAR_GP_PIN(3, 6), RCAR_GP_PIN(3, 7),
+};
+static const unsigned int i2c1_b_mux[] = {
+	I2C1_SCL_B_MARK, I2C1_SDA_B_MARK,
+};
+static const unsigned int i2c1_c_pins[] = {
+	/* SCL, SDA */
+	RCAR_GP_PIN(4, 30), RCAR_GP_PIN(4, 27),
+};
+static const unsigned int i2c1_c_mux[] = {
+	I2C1_SCL_C_MARK, I2C1_SDA_C_MARK,
+};
+/* - I2C2 ------------------------------------------------------------------- */
+static const unsigned int i2c2_pins[] = {
+	/* SCL, SDA */
+	RCAR_GP_PIN(5, 5), RCAR_GP_PIN(5, 6),
+};
+static const unsigned int i2c2_mux[] = {
+	I2C2_SCL_MARK, I2C2_SDA_MARK,
+};
+static const unsigned int i2c2_b_pins[] = {
+	/* SCL, SDA */
+	RCAR_GP_PIN(4, 0), RCAR_GP_PIN(4, 1),
+};
+static const unsigned int i2c2_b_mux[] = {
+	I2C2_SCL_B_MARK, I2C2_SDA_B_MARK,
+};
+static const unsigned int i2c2_c_pins[] = {
+	/* SCL, SDA */
+	RCAR_GP_PIN(0, 6), RCAR_GP_PIN(0, 7),
+};
+static const unsigned int i2c2_c_mux[] = {
+	I2C2_SCL_C_MARK, I2C2_SDA_C_MARK,
+};
+static const unsigned int i2c2_d_pins[] = {
+	/* SCL, SDA */
+	RCAR_GP_PIN(3, 14), RCAR_GP_PIN(3, 15),
+};
+static const unsigned int i2c2_d_mux[] = {
+	I2C2_SCL_D_MARK, I2C2_SDA_D_MARK,
+};
+static const unsigned int i2c2_e_pins[] = {
+	/* SCL, SDA */
+	RCAR_GP_PIN(2, 18), RCAR_GP_PIN(2, 19),
+};
+static const unsigned int i2c2_e_mux[] = {
+	I2C2_SCL_E_MARK, I2C2_SDA_E_MARK,
+};
 /* - INTC ------------------------------------------------------------------- */
 static const unsigned int intc_irq0_pins[] = {
 	/* IRQ */
@@ -3047,6 +3105,14 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
 	SH_PFC_PIN_GROUP(hscif1_data_b),
 	SH_PFC_PIN_GROUP(hscif1_clk_b),
 	SH_PFC_PIN_GROUP(hscif1_ctrl_b),
+	SH_PFC_PIN_GROUP(i2c1),
+	SH_PFC_PIN_GROUP(i2c1_b),
+	SH_PFC_PIN_GROUP(i2c1_c),
+	SH_PFC_PIN_GROUP(i2c2),
+	SH_PFC_PIN_GROUP(i2c2_b),
+	SH_PFC_PIN_GROUP(i2c2_c),
+	SH_PFC_PIN_GROUP(i2c2_d),
+	SH_PFC_PIN_GROUP(i2c2_e),
 	SH_PFC_PIN_GROUP(intc_irq0),
 	SH_PFC_PIN_GROUP(intc_irq1),
 	SH_PFC_PIN_GROUP(intc_irq2),
@@ -3243,6 +3309,20 @@ static const char * const hscif1_groups[] = {
 	"hscif1_ctrl_b",
 };
 
+static const char * const i2c1_groups[] = {
+	"i2c1",
+	"i2c1_b",
+	"i2c1_c",
+};
+
+static const char * const i2c2_groups[] = {
+	"i2c2",
+	"i2c2_b",
+	"i2c2_c",
+	"i2c2_d",
+	"i2c2_e",
+};
+
 static const char * const intc_groups[] = {
 	"intc_irq0",
 	"intc_irq1",
@@ -3469,6 +3549,8 @@ static const struct sh_pfc_function pinmux_functions[] = {
 	SH_PFC_FUNCTION(eth),
 	SH_PFC_FUNCTION(hscif0),
 	SH_PFC_FUNCTION(hscif1),
+	SH_PFC_FUNCTION(i2c1),
+	SH_PFC_FUNCTION(i2c2),
 	SH_PFC_FUNCTION(intc),
 	SH_PFC_FUNCTION(mmc0),
 	SH_PFC_FUNCTION(mmc1),
-- 
cgit 


From 7f6db1717235bd45d265766dad53c10d30899d41 Mon Sep 17 00:00:00 2001
From: Shuah Khan <shuah.kh@samsung.com>
Date: Thu, 15 Aug 2013 11:59:23 -0600
Subject: iommu: Add event tracing feature to iommu

Add tracing feature to iommu to report various iommu events. Classes
iommu_group, iommu_device, and iommu_map_unmap are defined.

iommu_group class events can be enabled to trigger when devices get added
to and removed from an iommu group. Trace information includes iommu group
id and device name.

iommu:add_device_to_group
iommu:remove_device_from_group

iommu_device class events can be enabled to trigger when devices are attached
to and detached from a domain. Trace information includes device name.

iommu:attach_device_to_domain
iommu:detach_device_from_domain

iommu_map_unmap class events can be enabled to trigger when iommu map and
unmap iommu ops. Trace information includes iova, physical address (map event
only), and size.

iommu:map
iommu:unmap

Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---
 drivers/iommu/Makefile       |   1 +
 drivers/iommu/iommu-traces.c |  24 ++++++++
 drivers/iommu/iommu.c        |   1 +
 include/trace/events/iommu.h | 129 +++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 155 insertions(+)
 create mode 100644 drivers/iommu/iommu-traces.c
 create mode 100644 include/trace/events/iommu.h

diff --git a/drivers/iommu/Makefile b/drivers/iommu/Makefile
index 14c1f474cf11..5d58bf16e9e3 100644
--- a/drivers/iommu/Makefile
+++ b/drivers/iommu/Makefile
@@ -1,4 +1,5 @@
 obj-$(CONFIG_IOMMU_API) += iommu.o
+obj-$(CONFIG_IOMMU_API) += iommu-traces.o
 obj-$(CONFIG_OF_IOMMU)	+= of_iommu.o
 obj-$(CONFIG_MSM_IOMMU) += msm_iommu.o msm_iommu_dev.o
 obj-$(CONFIG_AMD_IOMMU) += amd_iommu.o amd_iommu_init.o
diff --git a/drivers/iommu/iommu-traces.c b/drivers/iommu/iommu-traces.c
new file mode 100644
index 000000000000..a2af60f31810
--- /dev/null
+++ b/drivers/iommu/iommu-traces.c
@@ -0,0 +1,24 @@
+/*
+ * iommu trace points
+ *
+ * Copyright (C) 2013 Shuah Khan <shuah.kh@samsung.com>
+ *
+ */
+
+#include <linux/string.h>
+#include <linux/types.h>
+
+#define CREATE_TRACE_POINTS
+#include <trace/events/iommu.h>
+
+/* iommu_group_event */
+EXPORT_TRACEPOINT_SYMBOL_GPL(add_device_to_group);
+EXPORT_TRACEPOINT_SYMBOL_GPL(remove_device_from_group);
+
+/* iommu_device_event */
+EXPORT_TRACEPOINT_SYMBOL_GPL(attach_device_to_domain);
+EXPORT_TRACEPOINT_SYMBOL_GPL(detach_device_from_domain);
+
+/* iommu_map_unmap */
+EXPORT_TRACEPOINT_SYMBOL_GPL(map);
+EXPORT_TRACEPOINT_SYMBOL_GPL(unmap);
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index fbe9ca734f8f..58f6a16b2e1a 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -29,6 +29,7 @@
 #include <linux/idr.h>
 #include <linux/notifier.h>
 #include <linux/err.h>
+#include <trace/events/iommu.h>
 
 static struct kset *iommu_group_kset;
 static struct ida iommu_group_ida;
diff --git a/include/trace/events/iommu.h b/include/trace/events/iommu.h
new file mode 100644
index 000000000000..86bcc5a9fedc
--- /dev/null
+++ b/include/trace/events/iommu.h
@@ -0,0 +1,129 @@
+/*
+ * iommu trace points
+ *
+ * Copyright (C) 2013 Shuah Khan <shuah.kh@samsung.com>
+ *
+ */
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM iommu
+
+#if !defined(_TRACE_IOMMU_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_IOMMU_H
+
+#include <linux/tracepoint.h>
+#include <linux/pci.h>
+
+struct device;
+
+DECLARE_EVENT_CLASS(iommu_group_event,
+
+	TP_PROTO(int group_id, struct device *dev),
+
+	TP_ARGS(group_id, dev),
+
+	TP_STRUCT__entry(
+		__field(int, gid)
+		__string(device, dev_name(dev))
+	),
+
+	TP_fast_assign(
+		__entry->gid = group_id;
+		__assign_str(device, dev_name(dev));
+	),
+
+	TP_printk("IOMMU: groupID=%d device=%s",
+			__entry->gid, __get_str(device)
+	)
+);
+
+DEFINE_EVENT(iommu_group_event, add_device_to_group,
+
+	TP_PROTO(int group_id, struct device *dev),
+
+	TP_ARGS(group_id, dev)
+
+);
+
+DEFINE_EVENT(iommu_group_event, remove_device_from_group,
+
+	TP_PROTO(int group_id, struct device *dev),
+
+	TP_ARGS(group_id, dev)
+);
+
+DECLARE_EVENT_CLASS(iommu_device_event,
+
+	TP_PROTO(struct device *dev),
+
+	TP_ARGS(dev),
+
+	TP_STRUCT__entry(
+		__string(device, dev_name(dev))
+	),
+
+	TP_fast_assign(
+		__assign_str(device, dev_name(dev));
+	),
+
+	TP_printk("IOMMU: device=%s", __get_str(device)
+	)
+);
+
+DEFINE_EVENT(iommu_device_event, attach_device_to_domain,
+
+	TP_PROTO(struct device *dev),
+
+	TP_ARGS(dev)
+);
+
+DEFINE_EVENT(iommu_device_event, detach_device_from_domain,
+
+	TP_PROTO(struct device *dev),
+
+	TP_ARGS(dev)
+);
+
+DECLARE_EVENT_CLASS(iommu_map_unmap,
+
+	TP_PROTO(unsigned long iova, phys_addr_t paddr, size_t size),
+
+	TP_ARGS(iova, paddr, size),
+
+	TP_STRUCT__entry(
+		__field(u64, iova)
+		__field(u64, paddr)
+		__field(int, size)
+	),
+
+	TP_fast_assign(
+		__entry->iova = iova;
+		__entry->paddr = paddr;
+		__entry->size = size;
+	),
+
+	TP_printk("IOMMU: iova=0x%016llx paddr=0x%016llx size=0x%x",
+			__entry->iova, __entry->paddr, __entry->size
+	)
+);
+
+DEFINE_EVENT(iommu_map_unmap, map,
+
+	TP_PROTO(unsigned long iova, phys_addr_t paddr, size_t size),
+
+	TP_ARGS(iova, paddr, size)
+);
+
+DEFINE_EVENT_PRINT(iommu_map_unmap, unmap,
+
+	TP_PROTO(unsigned long iova, phys_addr_t paddr, size_t size),
+
+	TP_ARGS(iova, paddr, size),
+
+	TP_printk("IOMMU: iova=0x%016llx size=0x%x",
+			__entry->iova, __entry->size
+	)
+);
+#endif /* _TRACE_IOMMU_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
-- 
cgit 


From d1cf7e822746b5e755f5a893ffeced1f6311c0cf Mon Sep 17 00:00:00 2001
From: Shuah Khan <shuah.kh@samsung.com>
Date: Thu, 15 Aug 2013 11:59:24 -0600
Subject: iommu: Change iommu driver to call add_device_to_group trace event

Change iommu driver to call add_device_to_group trace event. This iommu_group
class event can be enabled to trigger when devices get added to an iommu group.
Trace information includes iommu group id and device name.

Testing:
The following is trace is generated when intel-iommu driver adds devices to
to iommu groups during boot-time during its initialization:

       swapper/0-1     [003] ....     1.854793: add_device_to_group: IOMMU: groupID=0 device=0000:00:00.0
       swapper/0-1     [003] ....     1.854797: add_device_to_group: IOMMU: groupID=1 device=0000:00:02.0

Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---
 drivers/iommu/iommu.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 58f6a16b2e1a..349c92dfce05 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -364,6 +364,8 @@ rename:
 	/* Notify any listeners about change to group. */
 	blocking_notifier_call_chain(&group->notifier,
 				     IOMMU_GROUP_NOTIFY_ADD_DEVICE, dev);
+
+	trace_add_device_to_group(group->id, dev);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(iommu_group_add_device);
-- 
cgit 


From 2e757086bdfdc9450dc2e4a5d2ec5431520a02c8 Mon Sep 17 00:00:00 2001
From: Shuah Khan <shuah.kh@samsung.com>
Date: Thu, 15 Aug 2013 11:59:25 -0600
Subject: iommu: Change iommu driver to call remove_device_to_group trace event

Change iommu driver to call remove_device_to_group trace event. This
iommu_group class event can be enabled to trigger when devices get
removed from an iommu group. Trace information includes iommu group id and
device name.

Testing:
Added trace calls to iommu_prepare_identity_map() for testing some of the
conditions that are hard to trigger. Here is the trace from the testing:

       swapper/0-1     [003] ....     1.854101: remove_device_from_group: IOMMU: groupID=0 device=0000:00:02.0

Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---
 drivers/iommu/iommu.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 349c92dfce05..278055bd0715 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -402,6 +402,8 @@ void iommu_group_remove_device(struct device *dev)
 	sysfs_remove_link(group->devices_kobj, device->name);
 	sysfs_remove_link(&dev->kobj, "iommu_group");
 
+	trace_remove_device_from_group(group->id, dev);
+
 	kfree(device->name);
 	kfree(device);
 	dev->iommu_group = NULL;
-- 
cgit 


From b54db778858bc83f9231e5b358cb978f559f7016 Mon Sep 17 00:00:00 2001
From: Shuah Khan <shuah.kh@samsung.com>
Date: Thu, 15 Aug 2013 11:59:26 -0600
Subject: iommu: Change iommu driver to call attach_device_to_domain trace
 event

Change iommu driver to call attach_device_to_domain trace event. This
iommu_device class event can be enabled to trigger when devices are attached
to a domain. Trace information includes device name.

Testing:
Added trace calls to iommu_prepare_identity_map() for testing some of the
conditions that are hard to trigger. Here is the trace from the testing:

      swapper/0-1     [003] ....     1.854102: attach_device_to_domain: IOMMU: device=0000:00:02.0

Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---
 drivers/iommu/iommu.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 278055bd0715..74c371c53ee4 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -685,10 +685,14 @@ EXPORT_SYMBOL_GPL(iommu_domain_free);
 
 int iommu_attach_device(struct iommu_domain *domain, struct device *dev)
 {
+	int ret;
 	if (unlikely(domain->ops->attach_dev == NULL))
 		return -ENODEV;
 
-	return domain->ops->attach_dev(domain, dev);
+	ret = domain->ops->attach_dev(domain, dev);
+	if (!ret)
+		trace_attach_device_to_domain(dev);
+	return ret;
 }
 EXPORT_SYMBOL_GPL(iommu_attach_device);
 
-- 
cgit 


From 699806302d8ac7dfb7d46e20da0ecd4317418d1d Mon Sep 17 00:00:00 2001
From: Shuah Khan <shuah.kh@samsung.com>
Date: Thu, 15 Aug 2013 11:59:27 -0600
Subject: iommu: Change iommu driver to call detach_device_to_domain trace
 event

Change iommu driver to call detach_device_to_domain trace event. This
iommu_device class event can be enabled to trigger when devices are detached
from a domain. Trace information includes device name.

Testing:
Added trace calls to iommu_prepare_identity_map() for testing some of the
conditions that are hard to trigger. Here is the trace from the testing:

       swapper/0-1     [003] ....     1.854102: detach_device_from_domain: IOMMU: device=0000:00:02.0

Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---
 drivers/iommu/iommu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 74c371c53ee4..b6307545124c 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -702,6 +702,7 @@ void iommu_detach_device(struct iommu_domain *domain, struct device *dev)
 		return;
 
 	domain->ops->detach_dev(domain, dev);
+	trace_detach_device_from_domain(dev);
 }
 EXPORT_SYMBOL_GPL(iommu_detach_device);
 
-- 
cgit 


From e0be7c867882320b65714a4386760382196dc7e8 Mon Sep 17 00:00:00 2001
From: Shuah Khan <shuah.kh@samsung.com>
Date: Thu, 15 Aug 2013 11:59:28 -0600
Subject: iommu: Change iommu driver to call map trace event

Change iommu driver to call map trace event. This iommu_map_unmap class event
can be enabled to trigger when iommu map iommu ops is called. Trace information
includes iova, physical address (map event only), and size.

Testing:
Added trace calls to iommu_prepare_identity_map() for testing some of the
conditions that are hard to trigger. Here is the trace from the testing:

       swapper/0-1     [003] ....     1.854102: map: IOMMU: iova=0x00000000cb800000 paddr=0x00000000cf9fffff size=0x400

Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---
 drivers/iommu/iommu.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index b6307545124c..ea49fe814026 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -842,6 +842,8 @@ int iommu_map(struct iommu_domain *domain, unsigned long iova,
 	/* unroll mapping in case something went wrong */
 	if (ret)
 		iommu_unmap(domain, orig_iova, orig_size - size);
+	else
+		trace_map(iova, paddr, size);
 
 	return ret;
 }
-- 
cgit 


From 3a50639ca4684476a69314811d89622d78c09448 Mon Sep 17 00:00:00 2001
From: Shuah Khan <shuah.kh@samsung.com>
Date: Thu, 15 Aug 2013 11:59:29 -0600
Subject: iommu: Change iommu driver to call unmap trace event

Change iommu driver to call unmap trace event. This iommu_map_unmap class
event can be enabled to trigger when iommu unmap iommu ops is called. Trace
information includes iova, physical address (map event only), and size.

Testing:
Added trace calls to iommu_prepare_identity_map() for testing some of the
conditions that are hard to trigger. Here is the trace from the testing:

       swapper/0-1     [003] ....     1.854102: unmap: IOMMU: iova=0x00000000cb800000 size=0x400

Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---
 drivers/iommu/iommu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index ea49fe814026..d8c53c7a7ec1 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -892,6 +892,7 @@ size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova, size_t size)
 		unmapped += unmapped_page;
 	}
 
+	trace_unmap(iova, 0, size);
 	return unmapped;
 }
 EXPORT_SYMBOL_GPL(iommu_unmap);
-- 
cgit 


From 2245e3c31c15c2d2a26926c4b734f4d3a37ae252 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Tue, 24 Sep 2013 11:50:10 +0100
Subject: ASoC: ab8500: Explicitly set I/O up

We do some I/O in probe so we need to ensure the I/O operations are fully
set up then.

Reported-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/ab8500-codec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/codecs/ab8500-codec.c b/sound/soc/codecs/ab8500-codec.c
index d5a0fc4b2fe2..7f6ca111659b 100644
--- a/sound/soc/codecs/ab8500-codec.c
+++ b/sound/soc/codecs/ab8500-codec.c
@@ -2468,6 +2468,8 @@ static int ab8500_codec_probe(struct snd_soc_codec *codec)
 
 	dev_dbg(dev, "%s: Enter.\n", __func__);
 
+	snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP);
+
 	/* Setup AB8500 according to board-settings */
 	pdata = dev_get_platdata(dev->parent);
 
-- 
cgit 


From abedb049c52ef77ce7b11b915a4e7e6abd3985cb Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Thu, 22 Aug 2013 10:25:42 -0300
Subject: iommu: No need to pass '0x' when '%pa' is used

Commit 6197ca82 (iommu: Use %pa and %zx instead of casting) introduced the
usage of '%pa', but still kept the '0x', which leads to printing '0x0x'.

Remove the '0x' when '%pa' is used.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---
 drivers/iommu/iommu.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index fbe9ca734f8f..06d36a0b1001 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -807,17 +807,17 @@ int iommu_map(struct iommu_domain *domain, unsigned long iova,
 	 * size of the smallest page supported by the hardware
 	 */
 	if (!IS_ALIGNED(iova | paddr | size, min_pagesz)) {
-		pr_err("unaligned: iova 0x%lx pa 0x%pa size 0x%zx min_pagesz 0x%x\n",
+		pr_err("unaligned: iova 0x%lx pa %pa size 0x%zx min_pagesz 0x%x\n",
 		       iova, &paddr, size, min_pagesz);
 		return -EINVAL;
 	}
 
-	pr_debug("map: iova 0x%lx pa 0x%pa size 0x%zx\n", iova, &paddr, size);
+	pr_debug("map: iova 0x%lx pa %pa size 0x%zx\n", iova, &paddr, size);
 
 	while (size) {
 		size_t pgsize = iommu_pgsize(domain, iova | paddr, size);
 
-		pr_debug("mapping: iova 0x%lx pa 0x%pa pgsize 0x%zx\n",
+		pr_debug("mapping: iova 0x%lx pa %pa pgsize 0x%zx\n",
 			 iova, &paddr, pgsize);
 
 		ret = domain->ops->map(domain, iova, paddr, pgsize, prot);
-- 
cgit 


From e56b3dab34d41804b57b900f5b7e7837ece0367b Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Tue, 17 Sep 2013 10:19:31 +0200
Subject: iommu/tegra: Print phys_addr_t using %pa

When enabling LPAE on ARM, phys_addr_t becomes 64 bits wide and printing
a variable of that type using a simple %x format specifier causes the
compiler to complain. Change the format specifier to %pa, which is used
specifically for variables of type phys_addr_t.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---
 drivers/iommu/tegra-gart.c | 6 +++---
 drivers/iommu/tegra-smmu.c | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c
index 108c0e9c24d9..8993999fd2f4 100644
--- a/drivers/iommu/tegra-gart.c
+++ b/drivers/iommu/tegra-gart.c
@@ -252,7 +252,7 @@ static int gart_iommu_map(struct iommu_domain *domain, unsigned long iova,
 	spin_lock_irqsave(&gart->pte_lock, flags);
 	pfn = __phys_to_pfn(pa);
 	if (!pfn_valid(pfn)) {
-		dev_err(gart->dev, "Invalid page: %08x\n", pa);
+		dev_err(gart->dev, "Invalid page: %pa\n", &pa);
 		spin_unlock_irqrestore(&gart->pte_lock, flags);
 		return -EINVAL;
 	}
@@ -295,8 +295,8 @@ static phys_addr_t gart_iommu_iova_to_phys(struct iommu_domain *domain,
 
 	pa = (pte & GART_PAGE_MASK);
 	if (!pfn_valid(__phys_to_pfn(pa))) {
-		dev_err(gart->dev, "No entry for %08llx:%08x\n",
-			 (unsigned long long)iova, pa);
+		dev_err(gart->dev, "No entry for %08llx:%pa\n",
+			 (unsigned long long)iova, &pa);
 		gart_dump_table(gart);
 		return -EINVAL;
 	}
diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index e0665603afd9..34374b3bc13b 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -731,7 +731,7 @@ static int smmu_iommu_map(struct iommu_domain *domain, unsigned long iova,
 	unsigned long pfn = __phys_to_pfn(pa);
 	unsigned long flags;
 
-	dev_dbg(as->smmu->dev, "[%d] %08lx:%08x\n", as->asid, iova, pa);
+	dev_dbg(as->smmu->dev, "[%d] %08lx:%pa\n", as->asid, iova, &pa);
 
 	if (!pfn_valid(pfn))
 		return -ENOMEM;
-- 
cgit 


From d0c5b2579509b86c1b4a4fa7508428aa44bddd3b Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Tue, 24 Sep 2013 11:40:24 +0800
Subject: iommu/tegra: gart: cleanup devm_* functions usage

The devm_[kzalloc|ioremap] functions allocates data that are released
when a driver detaches. Thus, there is no reason to explicitly call
devm_[kfree|iounmap] in probe or remove functions.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---
 drivers/iommu/tegra-gart.c | 19 ++-----------------
 1 file changed, 2 insertions(+), 17 deletions(-)

diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c
index 8993999fd2f4..f75483a3a2ef 100644
--- a/drivers/iommu/tegra-gart.c
+++ b/drivers/iommu/tegra-gart.c
@@ -351,7 +351,6 @@ static int tegra_gart_probe(struct platform_device *pdev)
 	struct gart_device *gart;
 	struct resource *res, *res_remap;
 	void __iomem *gart_regs;
-	int err;
 	struct device *dev = &pdev->dev;
 
 	if (gart_handle)
@@ -376,8 +375,7 @@ static int tegra_gart_probe(struct platform_device *pdev)
 	gart_regs = devm_ioremap(dev, res->start, resource_size(res));
 	if (!gart_regs) {
 		dev_err(dev, "failed to remap GART registers\n");
-		err = -ENXIO;
-		goto fail;
+		return -ENXIO;
 	}
 
 	gart->dev = &pdev->dev;
@@ -391,8 +389,7 @@ static int tegra_gart_probe(struct platform_device *pdev)
 	gart->savedata = vmalloc(sizeof(u32) * gart->page_count);
 	if (!gart->savedata) {
 		dev_err(dev, "failed to allocate context save area\n");
-		err = -ENOMEM;
-		goto fail;
+		return -ENOMEM;
 	}
 
 	platform_set_drvdata(pdev, gart);
@@ -401,27 +398,15 @@ static int tegra_gart_probe(struct platform_device *pdev)
 	gart_handle = gart;
 	bus_set_iommu(&platform_bus_type, &gart_iommu_ops);
 	return 0;
-
-fail:
-	if (gart_regs)
-		devm_iounmap(dev, gart_regs);
-	if (gart && gart->savedata)
-		vfree(gart->savedata);
-	devm_kfree(dev, gart);
-	return err;
 }
 
 static int tegra_gart_remove(struct platform_device *pdev)
 {
 	struct gart_device *gart = platform_get_drvdata(pdev);
-	struct device *dev = gart->dev;
 
 	writel(0, gart->regs + GART_CONFIG);
 	if (gart->savedata)
 		vfree(gart->savedata);
-	if (gart->regs)
-		devm_iounmap(dev, gart->regs);
-	devm_kfree(dev, gart);
 	gart_handle = NULL;
 	return 0;
 }
-- 
cgit 


From fee4f2c66a3b0f0e97e16b3084e8c4151ae9196f Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Sun, 22 Sep 2013 06:04:23 +0100
Subject: drivers: CCI: fix the error handle in cci_pmu_probe()

This patch fix the error handle of function cci_pmu_probe():
- using IS_ERR() instead of NULL test for the return value of
  devm_ioremap_resource() since it nerver return NULL.
- remove kfree() for devm_kzalloc allocated memory
- remove dev_warn() since devm_ioremap_resource() has error message
  already.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 drivers/bus/arm-cci.c | 33 +++++++--------------------------
 1 file changed, 7 insertions(+), 26 deletions(-)

diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c
index dc6528e8b8fb..bb5b90e8e768 100644
--- a/drivers/bus/arm-cci.c
+++ b/drivers/bus/arm-cci.c
@@ -565,18 +565,9 @@ static int cci_pmu_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_warn(&pdev->dev, "Failed to get mem resource\n");
-		ret = -EINVAL;
-		goto memalloc_err;
-	};
-
 	pmu->base = devm_ioremap_resource(&pdev->dev, res);
-	if (!pmu->base) {
-		dev_warn(&pdev->dev, "Failed to ioremap\n");
-		ret = -ENOMEM;
-		goto memalloc_err;
-	}
+	if (IS_ERR(pmu->base))
+		return -ENOMEM;
 
 	/*
 	 * CCI PMU has 5 overflow signals - one per counter; but some may be tied
@@ -601,22 +592,18 @@ static int cci_pmu_probe(struct platform_device *pdev)
 	if (i < CCI_PMU_MAX_HW_EVENTS) {
 		dev_warn(&pdev->dev, "In-correct number of interrupts: %d, should be %d\n",
 			i, CCI_PMU_MAX_HW_EVENTS);
-		ret = -EINVAL;
-		goto memalloc_err;
+		return -EINVAL;
 	}
 
 	pmu->port_ranges = port_range_by_rev();
 	if (!pmu->port_ranges) {
 		dev_warn(&pdev->dev, "CCI PMU version not supported\n");
-		ret = -EINVAL;
-		goto memalloc_err;
+		return -EINVAL;
 	}
 
 	pmu->cci_pmu = devm_kzalloc(&pdev->dev, sizeof(*(pmu->cci_pmu)), GFP_KERNEL);
-	if (!pmu->cci_pmu) {
-		ret = -ENOMEM;
-		goto memalloc_err;
-	}
+	if (!pmu->cci_pmu)
+		return -ENOMEM;
 
 	pmu->hw_events.events = pmu->events;
 	pmu->hw_events.used_mask = pmu->used_mask;
@@ -624,15 +611,9 @@ static int cci_pmu_probe(struct platform_device *pdev)
 
 	ret = cci_pmu_init(pmu->cci_pmu, pdev);
 	if (ret)
-		goto pmuinit_err;
+		return ret;
 
 	return 0;
-
-pmuinit_err:
-	kfree(pmu->cci_pmu);
-memalloc_err:
-	kfree(pmu);
-	return ret;
 }
 
 static int cci_platform_probe(struct platform_device *pdev)
-- 
cgit 


From 405eb0e5b85d82d307ff4706af4f08c3ccd1c1f7 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 15:11:28 -0700
Subject: can: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/can/mscan/mscan.h     |  6 +++---
 drivers/net/can/softing/softing.h | 24 ++++++++++++------------
 2 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/net/can/mscan/mscan.h b/drivers/net/can/mscan/mscan.h
index 9c24d60a23b1..e98abb97a050 100644
--- a/drivers/net/can/mscan/mscan.h
+++ b/drivers/net/can/mscan/mscan.h
@@ -297,8 +297,8 @@ struct mscan_priv {
 	struct napi_struct napi;
 };
 
-extern struct net_device *alloc_mscandev(void);
-extern int register_mscandev(struct net_device *dev, int mscan_clksrc);
-extern void unregister_mscandev(struct net_device *dev);
+struct net_device *alloc_mscandev(void);
+int register_mscandev(struct net_device *dev, int mscan_clksrc);
+void unregister_mscandev(struct net_device *dev);
 
 #endif /* __MSCAN_H__ */
diff --git a/drivers/net/can/softing/softing.h b/drivers/net/can/softing/softing.h
index afd7d85b6915..35f062282dbd 100644
--- a/drivers/net/can/softing/softing.h
+++ b/drivers/net/can/softing/softing.h
@@ -71,34 +71,34 @@ struct softing {
 	} id;
 };
 
-extern int softing_default_output(struct net_device *netdev);
+int softing_default_output(struct net_device *netdev);
 
-extern ktime_t softing_raw2ktime(struct softing *card, u32 raw);
+ktime_t softing_raw2ktime(struct softing *card, u32 raw);
 
-extern int softing_chip_poweron(struct softing *card);
+int softing_chip_poweron(struct softing *card);
 
-extern int softing_bootloader_command(struct softing *card, int16_t cmd,
-		const char *msg);
+int softing_bootloader_command(struct softing *card, int16_t cmd,
+			       const char *msg);
 
 /* Load firmware after reset */
-extern int softing_load_fw(const char *file, struct softing *card,
-			__iomem uint8_t *virt, unsigned int size, int offset);
+int softing_load_fw(const char *file, struct softing *card,
+		    __iomem uint8_t *virt, unsigned int size, int offset);
 
 /* Load final application firmware after bootloader */
-extern int softing_load_app_fw(const char *file, struct softing *card);
+int softing_load_app_fw(const char *file, struct softing *card);
 
 /*
  * enable or disable irq
  * only called with fw.lock locked
  */
-extern int softing_enable_irq(struct softing *card, int enable);
+int softing_enable_irq(struct softing *card, int enable);
 
 /* start/stop 1 bus on card */
-extern int softing_startstop(struct net_device *netdev, int up);
+int softing_startstop(struct net_device *netdev, int up);
 
 /* netif_rx() */
-extern int softing_netdev_rx(struct net_device *netdev,
-		const struct can_frame *msg, ktime_t ktime);
+int softing_netdev_rx(struct net_device *netdev, const struct can_frame *msg,
+		      ktime_t ktime);
 
 /* SOFTING DPRAM mappings */
 #define DPRAM_RX		0x0000
-- 
cgit 


From 68d34301518b678850ad897ef0dcd4b894632868 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 15:11:29 -0700
Subject: 8390: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/8390/8390.h | 40 ++++++++++++++++++++--------------------
 1 file changed, 20 insertions(+), 20 deletions(-)

diff --git a/drivers/net/ethernet/8390/8390.h b/drivers/net/ethernet/8390/8390.h
index ef325ffa1b5a..2923c51bb351 100644
--- a/drivers/net/ethernet/8390/8390.h
+++ b/drivers/net/ethernet/8390/8390.h
@@ -28,42 +28,42 @@ extern int ei_debug;
 #endif
 
 #ifdef CONFIG_NET_POLL_CONTROLLER
-extern void ei_poll(struct net_device *dev);
-extern void eip_poll(struct net_device *dev);
+void ei_poll(struct net_device *dev);
+void eip_poll(struct net_device *dev);
 #endif
 
 
 /* Without I/O delay - non ISA or later chips */
-extern void NS8390_init(struct net_device *dev, int startp);
-extern int ei_open(struct net_device *dev);
-extern int ei_close(struct net_device *dev);
-extern irqreturn_t ei_interrupt(int irq, void *dev_id);
-extern void ei_tx_timeout(struct net_device *dev);
-extern netdev_tx_t ei_start_xmit(struct sk_buff *skb, struct net_device *dev);
-extern void ei_set_multicast_list(struct net_device *dev);
-extern struct net_device_stats *ei_get_stats(struct net_device *dev);
+void NS8390_init(struct net_device *dev, int startp);
+int ei_open(struct net_device *dev);
+int ei_close(struct net_device *dev);
+irqreturn_t ei_interrupt(int irq, void *dev_id);
+void ei_tx_timeout(struct net_device *dev);
+netdev_tx_t ei_start_xmit(struct sk_buff *skb, struct net_device *dev);
+void ei_set_multicast_list(struct net_device *dev);
+struct net_device_stats *ei_get_stats(struct net_device *dev);
 
 extern const struct net_device_ops ei_netdev_ops;
 
-extern struct net_device *__alloc_ei_netdev(int size);
+struct net_device *__alloc_ei_netdev(int size);
 static inline struct net_device *alloc_ei_netdev(void)
 {
 	return __alloc_ei_netdev(0);
 }
 
 /* With I/O delay form */
-extern void NS8390p_init(struct net_device *dev, int startp);
-extern int eip_open(struct net_device *dev);
-extern int eip_close(struct net_device *dev);
-extern irqreturn_t eip_interrupt(int irq, void *dev_id);
-extern void eip_tx_timeout(struct net_device *dev);
-extern netdev_tx_t eip_start_xmit(struct sk_buff *skb, struct net_device *dev);
-extern void eip_set_multicast_list(struct net_device *dev);
-extern struct net_device_stats *eip_get_stats(struct net_device *dev);
+void NS8390p_init(struct net_device *dev, int startp);
+int eip_open(struct net_device *dev);
+int eip_close(struct net_device *dev);
+irqreturn_t eip_interrupt(int irq, void *dev_id);
+void eip_tx_timeout(struct net_device *dev);
+netdev_tx_t eip_start_xmit(struct sk_buff *skb, struct net_device *dev);
+void eip_set_multicast_list(struct net_device *dev);
+struct net_device_stats *eip_get_stats(struct net_device *dev);
 
 extern const struct net_device_ops eip_netdev_ops;
 
-extern struct net_device *__alloc_eip_netdev(int size);
+struct net_device *__alloc_eip_netdev(int size);
 static inline struct net_device *alloc_eip_netdev(void)
 {
 	return __alloc_eip_netdev(0);
-- 
cgit 


From 3398032c65127749683e44cc263049606fec4322 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 15:11:30 -0700
Subject: adi: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/adi/bfin_mac.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/adi/bfin_mac.h b/drivers/net/ethernet/adi/bfin_mac.h
index 7a07ee07906b..6dec86ac97cd 100644
--- a/drivers/net/ethernet/adi/bfin_mac.h
+++ b/drivers/net/ethernet/adi/bfin_mac.h
@@ -104,6 +104,6 @@ struct bfin_mac_local {
 #endif
 };
 
-extern int bfin_get_ether_addr(char *addr);
+int bfin_get_ether_addr(char *addr);
 
 #endif
-- 
cgit 


From 6ae97e834a36ef0413ee1d3bf057ab8ee8ac63ab Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 15:11:32 -0700
Subject: atheros: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/atheros/atl1c/atl1c.h |  6 +++---
 drivers/net/ethernet/atheros/atl1e/atl1e.h | 12 ++++++------
 drivers/net/ethernet/atheros/atlx/atl2.h   |  2 +-
 3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c.h b/drivers/net/ethernet/atheros/atl1c/atl1c.h
index 0f0556526ba9..7f9369a3b378 100644
--- a/drivers/net/ethernet/atheros/atl1c/atl1c.h
+++ b/drivers/net/ethernet/atheros/atl1c/atl1c.h
@@ -600,7 +600,7 @@ struct atl1c_adapter {
 extern char atl1c_driver_name[];
 extern char atl1c_driver_version[];
 
-extern void atl1c_reinit_locked(struct atl1c_adapter *adapter);
-extern s32 atl1c_reset_hw(struct atl1c_hw *hw);
-extern void atl1c_set_ethtool_ops(struct net_device *netdev);
+void atl1c_reinit_locked(struct atl1c_adapter *adapter);
+s32 atl1c_reset_hw(struct atl1c_hw *hw);
+void atl1c_set_ethtool_ops(struct net_device *netdev);
 #endif /* _ATL1C_H_ */
diff --git a/drivers/net/ethernet/atheros/atl1e/atl1e.h b/drivers/net/ethernet/atheros/atl1e/atl1e.h
index b5fd934585e9..1b0fe2d04a0e 100644
--- a/drivers/net/ethernet/atheros/atl1e/atl1e.h
+++ b/drivers/net/ethernet/atheros/atl1e/atl1e.h
@@ -499,10 +499,10 @@ struct atl1e_adapter {
 extern char atl1e_driver_name[];
 extern char atl1e_driver_version[];
 
-extern void atl1e_check_options(struct atl1e_adapter *adapter);
-extern int atl1e_up(struct atl1e_adapter *adapter);
-extern void atl1e_down(struct atl1e_adapter *adapter);
-extern void atl1e_reinit_locked(struct atl1e_adapter *adapter);
-extern s32 atl1e_reset_hw(struct atl1e_hw *hw);
-extern void atl1e_set_ethtool_ops(struct net_device *netdev);
+void atl1e_check_options(struct atl1e_adapter *adapter);
+int atl1e_up(struct atl1e_adapter *adapter);
+void atl1e_down(struct atl1e_adapter *adapter);
+void atl1e_reinit_locked(struct atl1e_adapter *adapter);
+s32 atl1e_reset_hw(struct atl1e_hw *hw);
+void atl1e_set_ethtool_ops(struct net_device *netdev);
 #endif /* _ATL1_E_H_ */
diff --git a/drivers/net/ethernet/atheros/atlx/atl2.h b/drivers/net/ethernet/atheros/atlx/atl2.h
index 3ebe19f7242b..2f27d4c4c3ad 100644
--- a/drivers/net/ethernet/atheros/atlx/atl2.h
+++ b/drivers/net/ethernet/atheros/atlx/atl2.h
@@ -42,7 +42,7 @@
 #include "atlx.h"
 
 #ifdef ETHTOOL_OPS_COMPAT
-extern int ethtool_ioctl(struct ifreq *ifr);
+int ethtool_ioctl(struct ifreq *ifr);
 #endif
 
 #define PCI_COMMAND_REGISTER	PCI_COMMAND
-- 
cgit 


From 1ee1725bb087b3fa859a1c7786959a8440075e22 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 15:11:33 -0700
Subject: broadcom: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/cnic_if.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/cnic_if.h b/drivers/net/ethernet/broadcom/cnic_if.h
index 0658b43e148c..ebbfe25acaa6 100644
--- a/drivers/net/ethernet/broadcom/cnic_if.h
+++ b/drivers/net/ethernet/broadcom/cnic_if.h
@@ -353,8 +353,8 @@ struct cnic_ulp_ops {
 	atomic_t ref_count;
 };
 
-extern int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops);
+int cnic_register_driver(int ulp_type, struct cnic_ulp_ops *ulp_ops);
 
-extern int cnic_unregister_driver(int ulp_type);
+int cnic_unregister_driver(int ulp_type);
 
 #endif
-- 
cgit 


From 49ca19bd2f7d0d9d55d5b42774bf31bf37136ccc Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 15:11:34 -0700
Subject: brocade: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/brocade/bna/bnad.h | 43 ++++++++++++++++-----------------
 1 file changed, 21 insertions(+), 22 deletions(-)

diff --git a/drivers/net/ethernet/brocade/bna/bnad.h b/drivers/net/ethernet/brocade/bna/bnad.h
index aefee77523f2..f7e033f8a00e 100644
--- a/drivers/net/ethernet/brocade/bna/bnad.h
+++ b/drivers/net/ethernet/brocade/bna/bnad.h
@@ -372,38 +372,37 @@ extern u32		bnad_rxqs_per_cq;
 /*
  * EXTERN PROTOTYPES
  */
-extern u32 *cna_get_firmware_buf(struct pci_dev *pdev);
+u32 *cna_get_firmware_buf(struct pci_dev *pdev);
 /* Netdev entry point prototypes */
-extern void bnad_set_rx_mode(struct net_device *netdev);
-extern struct net_device_stats *bnad_get_netdev_stats(
-				struct net_device *netdev);
-extern int bnad_mac_addr_set_locked(struct bnad *bnad, u8 *mac_addr);
-extern int bnad_enable_default_bcast(struct bnad *bnad);
-extern void bnad_restore_vlans(struct bnad *bnad, u32 rx_id);
-extern void bnad_set_ethtool_ops(struct net_device *netdev);
-extern void bnad_cb_completion(void *arg, enum bfa_status status);
+void bnad_set_rx_mode(struct net_device *netdev);
+struct net_device_stats *bnad_get_netdev_stats(struct net_device *netdev);
+int bnad_mac_addr_set_locked(struct bnad *bnad, u8 *mac_addr);
+int bnad_enable_default_bcast(struct bnad *bnad);
+void bnad_restore_vlans(struct bnad *bnad, u32 rx_id);
+void bnad_set_ethtool_ops(struct net_device *netdev);
+void bnad_cb_completion(void *arg, enum bfa_status status);
 
 /* Configuration & setup */
-extern void bnad_tx_coalescing_timeo_set(struct bnad *bnad);
-extern void bnad_rx_coalescing_timeo_set(struct bnad *bnad);
+void bnad_tx_coalescing_timeo_set(struct bnad *bnad);
+void bnad_rx_coalescing_timeo_set(struct bnad *bnad);
 
-extern int bnad_setup_rx(struct bnad *bnad, u32 rx_id);
-extern int bnad_setup_tx(struct bnad *bnad, u32 tx_id);
-extern void bnad_destroy_tx(struct bnad *bnad, u32 tx_id);
-extern void bnad_destroy_rx(struct bnad *bnad, u32 rx_id);
+int bnad_setup_rx(struct bnad *bnad, u32 rx_id);
+int bnad_setup_tx(struct bnad *bnad, u32 tx_id);
+void bnad_destroy_tx(struct bnad *bnad, u32 tx_id);
+void bnad_destroy_rx(struct bnad *bnad, u32 rx_id);
 
 /* Timer start/stop protos */
-extern void bnad_dim_timer_start(struct bnad *bnad);
+void bnad_dim_timer_start(struct bnad *bnad);
 
 /* Statistics */
-extern void bnad_netdev_qstats_fill(struct bnad *bnad,
-		struct rtnl_link_stats64 *stats);
-extern void bnad_netdev_hwstats_fill(struct bnad *bnad,
-		struct rtnl_link_stats64 *stats);
+void bnad_netdev_qstats_fill(struct bnad *bnad,
+			     struct rtnl_link_stats64 *stats);
+void bnad_netdev_hwstats_fill(struct bnad *bnad,
+			      struct rtnl_link_stats64 *stats);
 
 /* Debugfs */
-void	bnad_debugfs_init(struct bnad *bnad);
-void	bnad_debugfs_uninit(struct bnad *bnad);
+void bnad_debugfs_init(struct bnad *bnad);
+void bnad_debugfs_uninit(struct bnad *bnad);
 
 /* MACROS */
 /* To set & get the stats counters */
-- 
cgit 


From 22018e45ae4acb98e27717defd16335b512b0c1c Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 15:11:35 -0700
Subject: chelsio: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/chelsio/cxgb/common.h | 46 +++++++++++++++---------------
 1 file changed, 23 insertions(+), 23 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb/common.h b/drivers/net/ethernet/chelsio/cxgb/common.h
index 5ccbed1784d2..8abb46b39032 100644
--- a/drivers/net/ethernet/chelsio/cxgb/common.h
+++ b/drivers/net/ethernet/chelsio/cxgb/common.h
@@ -324,30 +324,30 @@ static inline unsigned int core_ticks_per_usec(const adapter_t *adap)
 	return board_info(adap)->clock_core / 1000000;
 }
 
-extern int __t1_tpi_read(adapter_t *adapter, u32 addr, u32 *valp);
-extern int __t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
-extern int t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
-extern int t1_tpi_read(adapter_t *adapter, u32 addr, u32 *value);
-
-extern void t1_interrupts_enable(adapter_t *adapter);
-extern void t1_interrupts_disable(adapter_t *adapter);
-extern void t1_interrupts_clear(adapter_t *adapter);
-extern int t1_elmer0_ext_intr_handler(adapter_t *adapter);
-extern void t1_elmer0_ext_intr(adapter_t *adapter);
-extern int t1_slow_intr_handler(adapter_t *adapter);
-
-extern int t1_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc);
-extern const struct board_info *t1_get_board_info(unsigned int board_id);
-extern const struct board_info *t1_get_board_info_from_ids(unsigned int devid,
+int __t1_tpi_read(adapter_t *adapter, u32 addr, u32 *valp);
+int __t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
+int t1_tpi_write(adapter_t *adapter, u32 addr, u32 value);
+int t1_tpi_read(adapter_t *adapter, u32 addr, u32 *value);
+
+void t1_interrupts_enable(adapter_t *adapter);
+void t1_interrupts_disable(adapter_t *adapter);
+void t1_interrupts_clear(adapter_t *adapter);
+int t1_elmer0_ext_intr_handler(adapter_t *adapter);
+void t1_elmer0_ext_intr(adapter_t *adapter);
+int t1_slow_intr_handler(adapter_t *adapter);
+
+int t1_link_start(struct cphy *phy, struct cmac *mac, struct link_config *lc);
+const struct board_info *t1_get_board_info(unsigned int board_id);
+const struct board_info *t1_get_board_info_from_ids(unsigned int devid,
 						    unsigned short ssid);
-extern int t1_seeprom_read(adapter_t *adapter, u32 addr, __le32 *data);
-extern int t1_get_board_rev(adapter_t *adapter, const struct board_info *bi,
+int t1_seeprom_read(adapter_t *adapter, u32 addr, __le32 *data);
+int t1_get_board_rev(adapter_t *adapter, const struct board_info *bi,
 		     struct adapter_params *p);
-extern int t1_init_hw_modules(adapter_t *adapter);
-extern int t1_init_sw_modules(adapter_t *adapter, const struct board_info *bi);
-extern void t1_free_sw_modules(adapter_t *adapter);
-extern void t1_fatal_err(adapter_t *adapter);
-extern void t1_link_changed(adapter_t *adapter, int port_id);
-extern void t1_link_negotiated(adapter_t *adapter, int port_id, int link_stat,
+int t1_init_hw_modules(adapter_t *adapter);
+int t1_init_sw_modules(adapter_t *adapter, const struct board_info *bi);
+void t1_free_sw_modules(adapter_t *adapter);
+void t1_fatal_err(adapter_t *adapter);
+void t1_link_changed(adapter_t *adapter, int port_id);
+void t1_link_negotiated(adapter_t *adapter, int port_id, int link_stat,
 			    int speed, int duplex, int pause);
 #endif /* _CXGB_COMMON_H_ */
-- 
cgit 


From 31886e87bdb1ca4f1b4e03f2c061938fd47ac163 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 15:11:36 -0700
Subject: emulex: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be.h      |  24 +--
 drivers/net/ethernet/emulex/benet/be_cmds.h | 238 +++++++++++++---------------
 2 files changed, 123 insertions(+), 139 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index ace5050dba38..4a0d3b786288 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -694,27 +694,27 @@ static inline int qnq_async_evt_rcvd(struct be_adapter *adapter)
 	return adapter->flags & BE_FLAGS_QNQ_ASYNC_EVT_RCVD;
 }
 
-extern void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm,
-		u16 num_popped);
-extern void be_link_status_update(struct be_adapter *adapter, u8 link_status);
-extern void be_parse_stats(struct be_adapter *adapter);
-extern int be_load_fw(struct be_adapter *adapter, u8 *func);
-extern bool be_is_wol_supported(struct be_adapter *adapter);
-extern bool be_pause_supported(struct be_adapter *adapter);
-extern u32 be_get_fw_log_level(struct be_adapter *adapter);
+void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm,
+		  u16 num_popped);
+void be_link_status_update(struct be_adapter *adapter, u8 link_status);
+void be_parse_stats(struct be_adapter *adapter);
+int be_load_fw(struct be_adapter *adapter, u8 *func);
+bool be_is_wol_supported(struct be_adapter *adapter);
+bool be_pause_supported(struct be_adapter *adapter);
+u32 be_get_fw_log_level(struct be_adapter *adapter);
 int be_update_queues(struct be_adapter *adapter);
 int be_poll(struct napi_struct *napi, int budget);
 
 /*
  * internal function to initialize-cleanup roce device.
  */
-extern void be_roce_dev_add(struct be_adapter *);
-extern void be_roce_dev_remove(struct be_adapter *);
+void be_roce_dev_add(struct be_adapter *);
+void be_roce_dev_remove(struct be_adapter *);
 
 /*
  * internal function to open-close roce device during ifup-ifdown.
  */
-extern void be_roce_dev_open(struct be_adapter *);
-extern void be_roce_dev_close(struct be_adapter *);
+void be_roce_dev_open(struct be_adapter *);
+void be_roce_dev_close(struct be_adapter *);
 
 #endif				/* BE_H */
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index d026226db88c..84f8c5243655 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -1863,137 +1863,121 @@ struct be_cmd_resp_get_iface_list {
 	struct be_if_desc if_desc;
 };
 
-extern int be_pci_fnum_get(struct be_adapter *adapter);
-extern int be_fw_wait_ready(struct be_adapter *adapter);
-extern int be_cmd_mac_addr_query(struct be_adapter *adapter, u8 *mac_addr,
-				 bool permanent, u32 if_handle, u32 pmac_id);
-extern int be_cmd_pmac_add(struct be_adapter *adapter, u8 *mac_addr,
-			u32 if_id, u32 *pmac_id, u32 domain);
-extern int be_cmd_pmac_del(struct be_adapter *adapter, u32 if_id,
-			int pmac_id, u32 domain);
-extern int be_cmd_if_create(struct be_adapter *adapter, u32 cap_flags,
-			    u32 en_flags, u32 *if_handle, u32 domain);
-extern int be_cmd_if_destroy(struct be_adapter *adapter, int if_handle,
-			u32 domain);
-extern int be_cmd_eq_create(struct be_adapter *adapter, struct be_eq_obj *eqo);
-extern int be_cmd_cq_create(struct be_adapter *adapter,
-			struct be_queue_info *cq, struct be_queue_info *eq,
-			bool no_delay, int num_cqe_dma_coalesce);
-extern int be_cmd_mccq_create(struct be_adapter *adapter,
-			struct be_queue_info *mccq,
-			struct be_queue_info *cq);
-extern int be_cmd_txq_create(struct be_adapter *adapter,
-			struct be_tx_obj *txo);
-extern int be_cmd_rxq_create(struct be_adapter *adapter,
-			struct be_queue_info *rxq, u16 cq_id,
-			u16 frag_size, u32 if_id, u32 rss, u8 *rss_id);
-extern int be_cmd_q_destroy(struct be_adapter *adapter, struct be_queue_info *q,
-			int type);
-extern int be_cmd_rxq_destroy(struct be_adapter *adapter,
-			struct be_queue_info *q);
-extern int be_cmd_link_status_query(struct be_adapter *adapter, u16 *link_speed,
-				    u8 *link_status, u32 dom);
-extern int be_cmd_reset(struct be_adapter *adapter);
-extern int be_cmd_get_stats(struct be_adapter *adapter,
-			struct be_dma_mem *nonemb_cmd);
-extern int lancer_cmd_get_pport_stats(struct be_adapter *adapter,
-			struct be_dma_mem *nonemb_cmd);
-extern int be_cmd_get_fw_ver(struct be_adapter *adapter, char *fw_ver,
-		char *fw_on_flash);
-
-extern int be_cmd_modify_eqd(struct be_adapter *adapter, u32 eq_id, u32 eqd);
-extern int be_cmd_vlan_config(struct be_adapter *adapter, u32 if_id,
-			u16 *vtag_array, u32 num, bool untagged,
-			bool promiscuous);
-extern int be_cmd_rx_filter(struct be_adapter *adapter, u32 flags, u32 status);
-extern int be_cmd_set_flow_control(struct be_adapter *adapter,
-			u32 tx_fc, u32 rx_fc);
-extern int be_cmd_get_flow_control(struct be_adapter *adapter,
-			u32 *tx_fc, u32 *rx_fc);
-extern int be_cmd_query_fw_cfg(struct be_adapter *adapter, u32 *port_num,
+int be_pci_fnum_get(struct be_adapter *adapter);
+int be_fw_wait_ready(struct be_adapter *adapter);
+int be_cmd_mac_addr_query(struct be_adapter *adapter, u8 *mac_addr,
+			  bool permanent, u32 if_handle, u32 pmac_id);
+int be_cmd_pmac_add(struct be_adapter *adapter, u8 *mac_addr, u32 if_id,
+		    u32 *pmac_id, u32 domain);
+int be_cmd_pmac_del(struct be_adapter *adapter, u32 if_id, int pmac_id,
+		    u32 domain);
+int be_cmd_if_create(struct be_adapter *adapter, u32 cap_flags, u32 en_flags,
+		     u32 *if_handle, u32 domain);
+int be_cmd_if_destroy(struct be_adapter *adapter, int if_handle, u32 domain);
+int be_cmd_eq_create(struct be_adapter *adapter, struct be_eq_obj *eqo);
+int be_cmd_cq_create(struct be_adapter *adapter, struct be_queue_info *cq,
+		     struct be_queue_info *eq, bool no_delay,
+		     int num_cqe_dma_coalesce);
+int be_cmd_mccq_create(struct be_adapter *adapter, struct be_queue_info *mccq,
+		       struct be_queue_info *cq);
+int be_cmd_txq_create(struct be_adapter *adapter, struct be_tx_obj *txo);
+int be_cmd_rxq_create(struct be_adapter *adapter, struct be_queue_info *rxq,
+		      u16 cq_id, u16 frag_size, u32 if_id, u32 rss, u8 *rss_id);
+int be_cmd_q_destroy(struct be_adapter *adapter, struct be_queue_info *q,
+		     int type);
+int be_cmd_rxq_destroy(struct be_adapter *adapter, struct be_queue_info *q);
+int be_cmd_link_status_query(struct be_adapter *adapter, u16 *link_speed,
+			     u8 *link_status, u32 dom);
+int be_cmd_reset(struct be_adapter *adapter);
+int be_cmd_get_stats(struct be_adapter *adapter, struct be_dma_mem *nonemb_cmd);
+int lancer_cmd_get_pport_stats(struct be_adapter *adapter,
+			       struct be_dma_mem *nonemb_cmd);
+int be_cmd_get_fw_ver(struct be_adapter *adapter, char *fw_ver,
+		      char *fw_on_flash);
+
+int be_cmd_modify_eqd(struct be_adapter *adapter, u32 eq_id, u32 eqd);
+int be_cmd_vlan_config(struct be_adapter *adapter, u32 if_id, u16 *vtag_array,
+		       u32 num, bool untagged, bool promiscuous);
+int be_cmd_rx_filter(struct be_adapter *adapter, u32 flags, u32 status);
+int be_cmd_set_flow_control(struct be_adapter *adapter, u32 tx_fc, u32 rx_fc);
+int be_cmd_get_flow_control(struct be_adapter *adapter, u32 *tx_fc, u32 *rx_fc);
+int be_cmd_query_fw_cfg(struct be_adapter *adapter, u32 *port_num,
 			u32 *function_mode, u32 *function_caps, u16 *asic_rev);
-extern int be_cmd_reset_function(struct be_adapter *adapter);
-extern int be_cmd_rss_config(struct be_adapter *adapter, u8 *rsstable,
-			     u32 rss_hash_opts, u16 table_size);
-extern int be_process_mcc(struct be_adapter *adapter);
-extern int be_cmd_set_beacon_state(struct be_adapter *adapter,
-			u8 port_num, u8 beacon, u8 status, u8 state);
-extern int be_cmd_get_beacon_state(struct be_adapter *adapter,
-			u8 port_num, u32 *state);
-extern int be_cmd_write_flashrom(struct be_adapter *adapter,
-			struct be_dma_mem *cmd, u32 flash_oper,
-			u32 flash_opcode, u32 buf_size);
-extern int lancer_cmd_write_object(struct be_adapter *adapter,
-				   struct be_dma_mem *cmd,
-				   u32 data_size, u32 data_offset,
-				   const char *obj_name,
-				   u32 *data_written, u8 *change_status,
-				   u8 *addn_status);
+int be_cmd_reset_function(struct be_adapter *adapter);
+int be_cmd_rss_config(struct be_adapter *adapter, u8 *rsstable,
+		      u32 rss_hash_opts, u16 table_size);
+int be_process_mcc(struct be_adapter *adapter);
+int be_cmd_set_beacon_state(struct be_adapter *adapter, u8 port_num, u8 beacon,
+			    u8 status, u8 state);
+int be_cmd_get_beacon_state(struct be_adapter *adapter, u8 port_num,
+			    u32 *state);
+int be_cmd_write_flashrom(struct be_adapter *adapter, struct be_dma_mem *cmd,
+			  u32 flash_oper, u32 flash_opcode, u32 buf_size);
+int lancer_cmd_write_object(struct be_adapter *adapter, struct be_dma_mem *cmd,
+			    u32 data_size, u32 data_offset,
+			    const char *obj_name, u32 *data_written,
+			    u8 *change_status, u8 *addn_status);
 int lancer_cmd_read_object(struct be_adapter *adapter, struct be_dma_mem *cmd,
-		u32 data_size, u32 data_offset, const char *obj_name,
-		u32 *data_read, u32 *eof, u8 *addn_status);
+			   u32 data_size, u32 data_offset, const char *obj_name,
+			   u32 *data_read, u32 *eof, u8 *addn_status);
 int be_cmd_get_flash_crc(struct be_adapter *adapter, u8 *flashed_crc,
-				int offset);
-extern int be_cmd_enable_magic_wol(struct be_adapter *adapter, u8 *mac,
-				struct be_dma_mem *nonemb_cmd);
-extern int be_cmd_fw_init(struct be_adapter *adapter);
-extern int be_cmd_fw_clean(struct be_adapter *adapter);
-extern void be_async_mcc_enable(struct be_adapter *adapter);
-extern void be_async_mcc_disable(struct be_adapter *adapter);
-extern int be_cmd_loopback_test(struct be_adapter *adapter, u32 port_num,
-				u32 loopback_type, u32 pkt_size,
-				u32 num_pkts, u64 pattern);
-extern int be_cmd_ddr_dma_test(struct be_adapter *adapter, u64 pattern,
-			u32 byte_cnt, struct be_dma_mem *cmd);
-extern int be_cmd_get_seeprom_data(struct be_adapter *adapter,
-				struct be_dma_mem *nonemb_cmd);
-extern int be_cmd_set_loopback(struct be_adapter *adapter, u8 port_num,
-				u8 loopback_type, u8 enable);
-extern int be_cmd_get_phy_info(struct be_adapter *adapter);
-extern int be_cmd_set_qos(struct be_adapter *adapter, u32 bps, u32 domain);
-extern void be_detect_error(struct be_adapter *adapter);
-extern int be_cmd_get_die_temperature(struct be_adapter *adapter);
-extern int be_cmd_get_cntl_attributes(struct be_adapter *adapter);
-extern int be_cmd_req_native_mode(struct be_adapter *adapter);
-extern int be_cmd_get_reg_len(struct be_adapter *adapter, u32 *log_size);
-extern void be_cmd_get_regs(struct be_adapter *adapter, u32 buf_len, void *buf);
-extern int be_cmd_get_fn_privileges(struct be_adapter *adapter,
-				    u32 *privilege, u32 domain);
-extern int be_cmd_set_fn_privileges(struct be_adapter *adapter,
-				    u32 privileges, u32 vf_num);
-extern int be_cmd_get_mac_from_list(struct be_adapter *adapter, u8 *mac,
-				    bool *pmac_id_active, u32 *pmac_id,
-				    u8 domain);
-extern int be_cmd_get_active_mac(struct be_adapter *adapter, u32 pmac_id,
-				 u8 *mac);
-extern int be_cmd_get_perm_mac(struct be_adapter *adapter, u8 *mac);
-extern int be_cmd_set_mac_list(struct be_adapter *adapter, u8 *mac_array,
-						u8 mac_count, u32 domain);
-extern int be_cmd_set_mac(struct be_adapter *adapter, u8 *mac, int if_id,
-			  u32 dom);
-extern int be_cmd_set_hsw_config(struct be_adapter *adapter, u16 pvid,
-				 u32 domain, u16 intf_id, u16 hsw_mode);
-extern int be_cmd_get_hsw_config(struct be_adapter *adapter, u16 *pvid,
-				 u32 domain, u16 intf_id, u8 *mode);
-extern int be_cmd_get_acpi_wol_cap(struct be_adapter *adapter);
-extern int be_cmd_get_ext_fat_capabilites(struct be_adapter *adapter,
-					  struct be_dma_mem *cmd);
-extern int be_cmd_set_ext_fat_capabilites(struct be_adapter *adapter,
-					  struct be_dma_mem *cmd,
-					  struct be_fat_conf_params *cfgs);
-extern int lancer_wait_ready(struct be_adapter *adapter);
-extern int lancer_physdev_ctrl(struct be_adapter *adapter, u32 mask);
-extern int lancer_initiate_dump(struct be_adapter *adapter);
-extern bool dump_present(struct be_adapter *adapter);
-extern int lancer_test_and_set_rdy_state(struct be_adapter *adapter);
-extern int be_cmd_query_port_name(struct be_adapter *adapter, u8 *port_name);
+			 int offset);
+int be_cmd_enable_magic_wol(struct be_adapter *adapter, u8 *mac,
+			    struct be_dma_mem *nonemb_cmd);
+int be_cmd_fw_init(struct be_adapter *adapter);
+int be_cmd_fw_clean(struct be_adapter *adapter);
+void be_async_mcc_enable(struct be_adapter *adapter);
+void be_async_mcc_disable(struct be_adapter *adapter);
+int be_cmd_loopback_test(struct be_adapter *adapter, u32 port_num,
+			 u32 loopback_type, u32 pkt_size, u32 num_pkts,
+			 u64 pattern);
+int be_cmd_ddr_dma_test(struct be_adapter *adapter, u64 pattern, u32 byte_cnt,
+			struct be_dma_mem *cmd);
+int be_cmd_get_seeprom_data(struct be_adapter *adapter,
+			    struct be_dma_mem *nonemb_cmd);
+int be_cmd_set_loopback(struct be_adapter *adapter, u8 port_num,
+			u8 loopback_type, u8 enable);
+int be_cmd_get_phy_info(struct be_adapter *adapter);
+int be_cmd_set_qos(struct be_adapter *adapter, u32 bps, u32 domain);
+void be_detect_error(struct be_adapter *adapter);
+int be_cmd_get_die_temperature(struct be_adapter *adapter);
+int be_cmd_get_cntl_attributes(struct be_adapter *adapter);
+int be_cmd_req_native_mode(struct be_adapter *adapter);
+int be_cmd_get_reg_len(struct be_adapter *adapter, u32 *log_size);
+void be_cmd_get_regs(struct be_adapter *adapter, u32 buf_len, void *buf);
+int be_cmd_get_fn_privileges(struct be_adapter *adapter, u32 *privilege,
+			     u32 domain);
+int be_cmd_set_fn_privileges(struct be_adapter *adapter, u32 privileges,
+			     u32 vf_num);
+int be_cmd_get_mac_from_list(struct be_adapter *adapter, u8 *mac,
+			     bool *pmac_id_active, u32 *pmac_id, u8 domain);
+int be_cmd_get_active_mac(struct be_adapter *adapter, u32 pmac_id, u8 *mac);
+int be_cmd_get_perm_mac(struct be_adapter *adapter, u8 *mac);
+int be_cmd_set_mac_list(struct be_adapter *adapter, u8 *mac_array, u8 mac_count,
+			u32 domain);
+int be_cmd_set_mac(struct be_adapter *adapter, u8 *mac, int if_id, u32 dom);
+int be_cmd_set_hsw_config(struct be_adapter *adapter, u16 pvid, u32 domain,
+			  u16 intf_id, u16 hsw_mode);
+int be_cmd_get_hsw_config(struct be_adapter *adapter, u16 *pvid, u32 domain,
+			  u16 intf_id, u8 *mode);
+int be_cmd_get_acpi_wol_cap(struct be_adapter *adapter);
+int be_cmd_get_ext_fat_capabilites(struct be_adapter *adapter,
+				   struct be_dma_mem *cmd);
+int be_cmd_set_ext_fat_capabilites(struct be_adapter *adapter,
+				   struct be_dma_mem *cmd,
+				   struct be_fat_conf_params *cfgs);
+int lancer_wait_ready(struct be_adapter *adapter);
+int lancer_physdev_ctrl(struct be_adapter *adapter, u32 mask);
+int lancer_initiate_dump(struct be_adapter *adapter);
+bool dump_present(struct be_adapter *adapter);
+int lancer_test_and_set_rdy_state(struct be_adapter *adapter);
+int be_cmd_query_port_name(struct be_adapter *adapter, u8 *port_name);
 int be_cmd_get_func_config(struct be_adapter *adapter,
 			   struct be_resources *res);
 int be_cmd_get_profile_config(struct be_adapter *adapter,
 			      struct be_resources *res, u8 domain);
-extern int be_cmd_set_profile_config(struct be_adapter *adapter, u32 bps,
-				     u8 domain);
-extern int be_cmd_get_if_id(struct be_adapter *adapter,
-			    struct be_vf_cfg *vf_cfg, int vf_num);
-extern int be_cmd_enable_vf(struct be_adapter *adapter, u8 domain);
-extern int be_cmd_intr_set(struct be_adapter *adapter, bool intr_enable);
+int be_cmd_set_profile_config(struct be_adapter *adapter, u32 bps, u8 domain);
+int be_cmd_get_if_id(struct be_adapter *adapter, struct be_vf_cfg *vf_cfg,
+		     int vf_num);
+int be_cmd_enable_vf(struct be_adapter *adapter, u8 domain);
+int be_cmd_intr_set(struct be_adapter *adapter, bool intr_enable);
-- 
cgit 


From bddb2d9a1efbceb6d78f515dd35c7c16f68b37db Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 15:11:37 -0700
Subject: gianfar: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/freescale/gianfar.h | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/freescale/gianfar.h b/drivers/net/ethernet/freescale/gianfar.h
index 04112b98ff5d..114c58f9d8d2 100644
--- a/drivers/net/ethernet/freescale/gianfar.h
+++ b/drivers/net/ethernet/freescale/gianfar.h
@@ -1177,21 +1177,21 @@ static inline void gfar_read_filer(struct gfar_private *priv,
 	*fpr = gfar_read(&regs->rqfpr);
 }
 
-extern void lock_rx_qs(struct gfar_private *priv);
-extern void lock_tx_qs(struct gfar_private *priv);
-extern void unlock_rx_qs(struct gfar_private *priv);
-extern void unlock_tx_qs(struct gfar_private *priv);
-extern irqreturn_t gfar_receive(int irq, void *dev_id);
-extern int startup_gfar(struct net_device *dev);
-extern void stop_gfar(struct net_device *dev);
-extern void gfar_halt(struct net_device *dev);
-extern void gfar_phy_test(struct mii_bus *bus, struct phy_device *phydev,
-		int enable, u32 regnum, u32 read);
-extern void gfar_configure_coalescing_all(struct gfar_private *priv);
+void lock_rx_qs(struct gfar_private *priv);
+void lock_tx_qs(struct gfar_private *priv);
+void unlock_rx_qs(struct gfar_private *priv);
+void unlock_tx_qs(struct gfar_private *priv);
+irqreturn_t gfar_receive(int irq, void *dev_id);
+int startup_gfar(struct net_device *dev);
+void stop_gfar(struct net_device *dev);
+void gfar_halt(struct net_device *dev);
+void gfar_phy_test(struct mii_bus *bus, struct phy_device *phydev, int enable,
+		   u32 regnum, u32 read);
+void gfar_configure_coalescing_all(struct gfar_private *priv);
 void gfar_init_sysfs(struct net_device *dev);
 int gfar_set_features(struct net_device *dev, netdev_features_t features);
-extern void gfar_check_rx_parser_mode(struct gfar_private *priv);
-extern void gfar_vlan_mode(struct net_device *dev, netdev_features_t features);
+void gfar_check_rx_parser_mode(struct gfar_private *priv);
+void gfar_vlan_mode(struct net_device *dev, netdev_features_t features);
 
 extern const struct ethtool_ops gfar_ethtool_ops;
 
-- 
cgit 


From 44da5c2f523876a02336c18dbcce93449fdbf0ca Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 15:11:31 -0700
Subject: amd/7990: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/ethernet/amd/7990.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/amd/7990.h b/drivers/net/ethernet/amd/7990.h
index 0a5837b96421..ae33a99bf476 100644
--- a/drivers/net/ethernet/amd/7990.h
+++ b/drivers/net/ethernet/amd/7990.h
@@ -242,13 +242,13 @@ struct lance_private
 #define LANCE_ADDR(x) ((int)(x) & ~0xff000000)
 
 /* Now the prototypes we export */
-extern int lance_open(struct net_device *dev);
-extern int lance_close (struct net_device *dev);
-extern int lance_start_xmit (struct sk_buff *skb, struct net_device *dev);
-extern void lance_set_multicast (struct net_device *dev);
-extern void lance_tx_timeout(struct net_device *dev);
+int lance_open(struct net_device *dev);
+int lance_close (struct net_device *dev);
+int lance_start_xmit (struct sk_buff *skb, struct net_device *dev);
+void lance_set_multicast (struct net_device *dev);
+void lance_tx_timeout(struct net_device *dev);
 #ifdef CONFIG_NET_POLL_CONTROLLER
-extern void lance_poll(struct net_device *dev);
+void lance_poll(struct net_device *dev);
 #endif
 
 #endif /* ndef _7990_H */
-- 
cgit 


From aa1a15e2d9199711cdcc9399fdb22544ab835a83 Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Sat, 21 Sep 2013 00:50:38 +0530
Subject: net: ethernet: cpsw: switch to devres allocations

This patch cleans up the allocation and error unwind paths, which
allows us to carry less information in struct cpsw_priv and reduce the
amount of jump labels in the probe functions.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/ti/cpsw.c | 153 ++++++++++++-----------------------------
 1 file changed, 43 insertions(+), 110 deletions(-)

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 79974e31187a..01c42e1b5b11 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -367,8 +367,6 @@ struct cpsw_priv {
 	spinlock_t			lock;
 	struct platform_device		*pdev;
 	struct net_device		*ndev;
-	struct resource			*cpsw_res;
-	struct resource			*cpsw_wr_res;
 	struct napi_struct		napi;
 	struct device			*dev;
 	struct cpsw_platform_data	data;
@@ -1712,62 +1710,55 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data,
 
 	if (of_property_read_u32(node, "active_slave", &prop)) {
 		pr_err("Missing active_slave property in the DT.\n");
-		ret = -EINVAL;
-		goto error_ret;
+		return -EINVAL;
 	}
 	data->active_slave = prop;
 
 	if (of_property_read_u32(node, "cpts_clock_mult", &prop)) {
 		pr_err("Missing cpts_clock_mult property in the DT.\n");
-		ret = -EINVAL;
-		goto error_ret;
+		return -EINVAL;
 	}
 	data->cpts_clock_mult = prop;
 
 	if (of_property_read_u32(node, "cpts_clock_shift", &prop)) {
 		pr_err("Missing cpts_clock_shift property in the DT.\n");
-		ret = -EINVAL;
-		goto error_ret;
+		return -EINVAL;
 	}
 	data->cpts_clock_shift = prop;
 
-	data->slave_data = kcalloc(data->slaves, sizeof(struct cpsw_slave_data),
-				   GFP_KERNEL);
+	data->slave_data = devm_kzalloc(&pdev->dev, data->slaves
+					* sizeof(struct cpsw_slave_data),
+					GFP_KERNEL);
 	if (!data->slave_data)
-		return -EINVAL;
+		return -ENOMEM;
 
 	if (of_property_read_u32(node, "cpdma_channels", &prop)) {
 		pr_err("Missing cpdma_channels property in the DT.\n");
-		ret = -EINVAL;
-		goto error_ret;
+		return -EINVAL;
 	}
 	data->channels = prop;
 
 	if (of_property_read_u32(node, "ale_entries", &prop)) {
 		pr_err("Missing ale_entries property in the DT.\n");
-		ret = -EINVAL;
-		goto error_ret;
+		return -EINVAL;
 	}
 	data->ale_entries = prop;
 
 	if (of_property_read_u32(node, "bd_ram_size", &prop)) {
 		pr_err("Missing bd_ram_size property in the DT.\n");
-		ret = -EINVAL;
-		goto error_ret;
+		return -EINVAL;
 	}
 	data->bd_ram_size = prop;
 
 	if (of_property_read_u32(node, "rx_descs", &prop)) {
 		pr_err("Missing rx_descs property in the DT.\n");
-		ret = -EINVAL;
-		goto error_ret;
+		return -EINVAL;
 	}
 	data->rx_descs = prop;
 
 	if (of_property_read_u32(node, "mac_control", &prop)) {
 		pr_err("Missing mac_control property in the DT.\n");
-		ret = -EINVAL;
-		goto error_ret;
+		return -EINVAL;
 	}
 	data->mac_control = prop;
 
@@ -1794,8 +1785,7 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data,
 		parp = of_get_property(slave_node, "phy_id", &lenp);
 		if ((parp == NULL) || (lenp != (sizeof(void *) * 2))) {
 			pr_err("Missing slave[%d] phy_id property\n", i);
-			ret = -EINVAL;
-			goto error_ret;
+			return -EINVAL;
 		}
 		mdio_node = of_find_node_by_phandle(be32_to_cpup(parp));
 		phyid = be32_to_cpup(parp+1);
@@ -1825,10 +1815,6 @@ static int cpsw_probe_dt(struct cpsw_platform_data *data,
 	}
 
 	return 0;
-
-error_ret:
-	kfree(data->slave_data);
-	return ret;
 }
 
 static int cpsw_probe_dual_emac(struct platform_device *pdev,
@@ -1870,7 +1856,6 @@ static int cpsw_probe_dual_emac(struct platform_device *pdev,
 	priv_sl2->coal_intvl = 0;
 	priv_sl2->bus_freq_mhz = priv->bus_freq_mhz;
 
-	priv_sl2->cpsw_res = priv->cpsw_res;
 	priv_sl2->regs = priv->regs;
 	priv_sl2->host_port = priv->host_port;
 	priv_sl2->host_port_regs = priv->host_port_regs;
@@ -1914,8 +1899,8 @@ static int cpsw_probe(struct platform_device *pdev)
 	struct cpsw_priv		*priv;
 	struct cpdma_params		dma_params;
 	struct cpsw_ale_params		ale_params;
-	void __iomem			*ss_regs, *wr_regs;
-	struct resource			*res;
+	void __iomem			*ss_regs;
+	struct resource			*res, *ss_res;
 	u32 slave_offset, sliver_offset, slave_size;
 	int ret = 0, i, k = 0;
 
@@ -1951,7 +1936,7 @@ static int cpsw_probe(struct platform_device *pdev)
 	if (cpsw_probe_dt(&priv->data, pdev)) {
 		pr_err("cpsw: platform data missing\n");
 		ret = -ENODEV;
-		goto clean_ndev_ret;
+		goto clean_runtime_disable_ret;
 	}
 	data = &priv->data;
 
@@ -1965,11 +1950,12 @@ static int cpsw_probe(struct platform_device *pdev)
 
 	memcpy(ndev->dev_addr, priv->mac_addr, ETH_ALEN);
 
-	priv->slaves = kzalloc(sizeof(struct cpsw_slave) * data->slaves,
-			       GFP_KERNEL);
+	priv->slaves = devm_kzalloc(&pdev->dev,
+				    sizeof(struct cpsw_slave) * data->slaves,
+				    GFP_KERNEL);
 	if (!priv->slaves) {
-		ret = -EBUSY;
-		goto clean_ndev_ret;
+		ret = -ENOMEM;
+		goto clean_runtime_disable_ret;
 	}
 	for (i = 0; i < data->slaves; i++)
 		priv->slaves[i].slave_num = i;
@@ -1977,55 +1963,31 @@ static int cpsw_probe(struct platform_device *pdev)
 	priv->slaves[0].ndev = ndev;
 	priv->emac_port = 0;
 
-	priv->clk = clk_get(&pdev->dev, "fck");
+	priv->clk = devm_clk_get(&pdev->dev, "fck");
 	if (IS_ERR(priv->clk)) {
-		dev_err(&pdev->dev, "fck is not found\n");
+		dev_err(priv->dev, "fck is not found\n");
 		ret = -ENODEV;
-		goto clean_slave_ret;
+		goto clean_runtime_disable_ret;
 	}
 	priv->coal_intvl = 0;
 	priv->bus_freq_mhz = clk_get_rate(priv->clk) / 1000000;
 
-	priv->cpsw_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!priv->cpsw_res) {
-		dev_err(priv->dev, "error getting i/o resource\n");
-		ret = -ENOENT;
-		goto clean_clk_ret;
-	}
-	if (!request_mem_region(priv->cpsw_res->start,
-				resource_size(priv->cpsw_res), ndev->name)) {
-		dev_err(priv->dev, "failed request i/o region\n");
-		ret = -ENXIO;
-		goto clean_clk_ret;
-	}
-	ss_regs = ioremap(priv->cpsw_res->start, resource_size(priv->cpsw_res));
-	if (!ss_regs) {
-		dev_err(priv->dev, "unable to map i/o region\n");
-		goto clean_cpsw_iores_ret;
+	ss_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	ss_regs = devm_ioremap_resource(&pdev->dev, ss_res);
+	if (IS_ERR(ss_regs)) {
+		ret = PTR_ERR(ss_regs);
+		goto clean_runtime_disable_ret;
 	}
 	priv->regs = ss_regs;
 	priv->version = __raw_readl(&priv->regs->id_ver);
 	priv->host_port = HOST_PORT_NUM;
 
-	priv->cpsw_wr_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	if (!priv->cpsw_wr_res) {
-		dev_err(priv->dev, "error getting i/o resource\n");
-		ret = -ENOENT;
-		goto clean_iomap_ret;
-	}
-	if (!request_mem_region(priv->cpsw_wr_res->start,
-			resource_size(priv->cpsw_wr_res), ndev->name)) {
-		dev_err(priv->dev, "failed request i/o region\n");
-		ret = -ENXIO;
-		goto clean_iomap_ret;
-	}
-	wr_regs = ioremap(priv->cpsw_wr_res->start,
-				resource_size(priv->cpsw_wr_res));
-	if (!wr_regs) {
-		dev_err(priv->dev, "unable to map i/o region\n");
-		goto clean_cpsw_wr_iores_ret;
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	priv->wr_regs = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(priv->wr_regs)) {
+		ret = PTR_ERR(priv->wr_regs);
+		goto clean_runtime_disable_ret;
 	}
-	priv->wr_regs = wr_regs;
 
 	memset(&dma_params, 0, sizeof(dma_params));
 	memset(&ale_params, 0, sizeof(ale_params));
@@ -2056,12 +2018,12 @@ static int cpsw_probe(struct platform_device *pdev)
 		slave_size           = CPSW2_SLAVE_SIZE;
 		sliver_offset        = CPSW2_SLIVER_OFFSET;
 		dma_params.desc_mem_phys =
-			(u32 __force) priv->cpsw_res->start + CPSW2_BD_OFFSET;
+			(u32 __force) ss_res->start + CPSW2_BD_OFFSET;
 		break;
 	default:
 		dev_err(priv->dev, "unknown version 0x%08x\n", priv->version);
 		ret = -ENODEV;
-		goto clean_cpsw_wr_iores_ret;
+		goto clean_runtime_disable_ret;
 	}
 	for (i = 0; i < priv->data.slaves; i++) {
 		struct cpsw_slave *slave = &priv->slaves[i];
@@ -2089,7 +2051,7 @@ static int cpsw_probe(struct platform_device *pdev)
 	if (!priv->dma) {
 		dev_err(priv->dev, "error initializing dma\n");
 		ret = -ENOMEM;
-		goto clean_wr_iomap_ret;
+		goto clean_runtime_disable_ret;
 	}
 
 	priv->txch = cpdma_chan_create(priv->dma, tx_chan_num(0),
@@ -2124,8 +2086,8 @@ static int cpsw_probe(struct platform_device *pdev)
 
 	while ((res = platform_get_resource(priv->pdev, IORESOURCE_IRQ, k))) {
 		for (i = res->start; i <= res->end; i++) {
-			if (request_irq(i, cpsw_interrupt, 0,
-					dev_name(&pdev->dev), priv)) {
+			if (devm_request_irq(&pdev->dev, i, cpsw_interrupt, 0,
+					     dev_name(priv->dev), priv)) {
 				dev_err(priv->dev, "error attaching irq\n");
 				goto clean_ale_ret;
 			}
@@ -2147,7 +2109,7 @@ static int cpsw_probe(struct platform_device *pdev)
 	if (ret) {
 		dev_err(priv->dev, "error registering net device\n");
 		ret = -ENODEV;
-		goto clean_irq_ret;
+		goto clean_ale_ret;
 	}
 
 	if (cpts_register(&pdev->dev, priv->cpts,
@@ -2155,44 +2117,27 @@ static int cpsw_probe(struct platform_device *pdev)
 		dev_err(priv->dev, "error registering cpts device\n");
 
 	cpsw_notice(priv, probe, "initialized device (regs %x, irq %d)\n",
-		  priv->cpsw_res->start, ndev->irq);
+		    ss_res->start, ndev->irq);
 
 	if (priv->data.dual_emac) {
 		ret = cpsw_probe_dual_emac(pdev, priv);
 		if (ret) {
 			cpsw_err(priv, probe, "error probe slave 2 emac interface\n");
-			goto clean_irq_ret;
+			goto clean_ale_ret;
 		}
 	}
 
 	return 0;
 
-clean_irq_ret:
-	for (i = 0; i < priv->num_irqs; i++)
-		free_irq(priv->irqs_table[i], priv);
 clean_ale_ret:
 	cpsw_ale_destroy(priv->ale);
 clean_dma_ret:
 	cpdma_chan_destroy(priv->txch);
 	cpdma_chan_destroy(priv->rxch);
 	cpdma_ctlr_destroy(priv->dma);
-clean_wr_iomap_ret:
-	iounmap(priv->wr_regs);
-clean_cpsw_wr_iores_ret:
-	release_mem_region(priv->cpsw_wr_res->start,
-			   resource_size(priv->cpsw_wr_res));
-clean_iomap_ret:
-	iounmap(priv->regs);
-clean_cpsw_iores_ret:
-	release_mem_region(priv->cpsw_res->start,
-			   resource_size(priv->cpsw_res));
-clean_clk_ret:
-	clk_put(priv->clk);
-clean_slave_ret:
+clean_runtime_disable_ret:
 	pm_runtime_disable(&pdev->dev);
-	kfree(priv->slaves);
 clean_ndev_ret:
-	kfree(priv->data.slave_data);
 	free_netdev(priv->ndev);
 	return ret;
 }
@@ -2201,30 +2146,18 @@ static int cpsw_remove(struct platform_device *pdev)
 {
 	struct net_device *ndev = platform_get_drvdata(pdev);
 	struct cpsw_priv *priv = netdev_priv(ndev);
-	int i;
 
 	if (priv->data.dual_emac)
 		unregister_netdev(cpsw_get_slave_ndev(priv, 1));
 	unregister_netdev(ndev);
 
 	cpts_unregister(priv->cpts);
-	for (i = 0; i < priv->num_irqs; i++)
-		free_irq(priv->irqs_table[i], priv);
 
 	cpsw_ale_destroy(priv->ale);
 	cpdma_chan_destroy(priv->txch);
 	cpdma_chan_destroy(priv->rxch);
 	cpdma_ctlr_destroy(priv->dma);
-	iounmap(priv->regs);
-	release_mem_region(priv->cpsw_res->start,
-			   resource_size(priv->cpsw_res));
-	iounmap(priv->wr_regs);
-	release_mem_region(priv->cpsw_wr_res->start,
-			   resource_size(priv->cpsw_wr_res));
 	pm_runtime_disable(&pdev->dev);
-	clk_put(priv->clk);
-	kfree(priv->slaves);
-	kfree(priv->data.slave_data);
 	if (priv->data.dual_emac)
 		free_netdev(cpsw_get_slave_ndev(priv, 1));
 	free_netdev(ndev);
-- 
cgit 


From 5892cd135e166c425c992c437a2944534b663a24 Mon Sep 17 00:00:00 2001
From: Mugunthan V N <mugunthanvnm@ti.com>
Date: Sat, 21 Sep 2013 00:50:39 +0530
Subject: drivers: net: cpsw-phy-sel: Add new driver for phy mode selection for
 cpsw

The cpsw currently lacks code to properly set up the hardware interface
mode on AM33xx. Other platforms might be equally affected.

Usually, the bootloader will configure the control module register, so
probably that's why such support wasn't needed in the past. In suspend
mode though, this register is modified, and so it needs reprogramming
after resume.

This patch adds a new driver in which hardware interface can configure
correct register bits when the slave is opened.

The AM33xx also has a bit for each slave to configure the RMII reference
clock direction. Setting it is now supported by a per-slave DT property.

This code path introducted by this patch is currently exclusive for
am33xx and same can be extened to various platforms via the DT compatibility
property.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Tested-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 .../devicetree/bindings/net/cpsw-phy-sel.txt       |  28 ++++
 drivers/net/ethernet/ti/Kconfig                    |   8 +
 drivers/net/ethernet/ti/Makefile                   |   1 +
 drivers/net/ethernet/ti/cpsw-phy-sel.c             | 161 +++++++++++++++++++++
 drivers/net/ethernet/ti/cpsw.h                     |   2 +
 5 files changed, 200 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/cpsw-phy-sel.txt
 create mode 100644 drivers/net/ethernet/ti/cpsw-phy-sel.c

diff --git a/Documentation/devicetree/bindings/net/cpsw-phy-sel.txt b/Documentation/devicetree/bindings/net/cpsw-phy-sel.txt
new file mode 100644
index 000000000000..7ff57a119f81
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/cpsw-phy-sel.txt
@@ -0,0 +1,28 @@
+TI CPSW Phy mode Selection Device Tree Bindings
+-----------------------------------------------
+
+Required properties:
+- compatible		: Should be "ti,am3352-cpsw-phy-sel"
+- reg			: physical base address and size of the cpsw
+			  registers map
+- reg-names		: names of the register map given in "reg" node
+
+Optional properties:
+-rmii-clock-ext		: If present, the driver will configure the RMII
+			  interface to external clock usage
+
+Examples:
+
+	phy_sel: cpsw-phy-sel@44e10650 {
+		compatible = "ti,am3352-cpsw-phy-sel";
+		reg= <0x44e10650 0x4>;
+		reg-names = "gmii-sel";
+	};
+
+(or)
+	phy_sel: cpsw-phy-sel@44e10650 {
+		compatible = "ti,am3352-cpsw-phy-sel";
+		reg= <0x44e10650 0x4>;
+		reg-names = "gmii-sel";
+		rmii-clock-ext;
+	};
diff --git a/drivers/net/ethernet/ti/Kconfig b/drivers/net/ethernet/ti/Kconfig
index de71b1ec4625..53150c25a96b 100644
--- a/drivers/net/ethernet/ti/Kconfig
+++ b/drivers/net/ethernet/ti/Kconfig
@@ -49,11 +49,19 @@ config TI_DAVINCI_CPDMA
 	  To compile this driver as a module, choose M here: the module
 	  will be called davinci_cpdma.  This is recommended.
 
+config TI_CPSW_PHY_SEL
+	boolean "TI CPSW Switch Phy sel Support"
+	depends on TI_CPSW
+	---help---
+	  This driver supports configuring of the phy mode connected to
+	  the CPSW.
+
 config TI_CPSW
 	tristate "TI CPSW Switch Support"
 	depends on ARM && (ARCH_DAVINCI || SOC_AM33XX)
 	select TI_DAVINCI_CPDMA
 	select TI_DAVINCI_MDIO
+	select TI_CPSW_PHY_SEL
 	---help---
 	  This driver supports TI's CPSW Ethernet Switch.
 
diff --git a/drivers/net/ethernet/ti/Makefile b/drivers/net/ethernet/ti/Makefile
index c65148e8aa1d..9cfaab8152be 100644
--- a/drivers/net/ethernet/ti/Makefile
+++ b/drivers/net/ethernet/ti/Makefile
@@ -7,5 +7,6 @@ obj-$(CONFIG_CPMAC) += cpmac.o
 obj-$(CONFIG_TI_DAVINCI_EMAC) += davinci_emac.o
 obj-$(CONFIG_TI_DAVINCI_MDIO) += davinci_mdio.o
 obj-$(CONFIG_TI_DAVINCI_CPDMA) += davinci_cpdma.o
+obj-$(CONFIG_TI_CPSW_PHY_SEL) += cpsw-phy-sel.o
 obj-$(CONFIG_TI_CPSW) += ti_cpsw.o
 ti_cpsw-y := cpsw_ale.o cpsw.o cpts.o
diff --git a/drivers/net/ethernet/ti/cpsw-phy-sel.c b/drivers/net/ethernet/ti/cpsw-phy-sel.c
new file mode 100644
index 000000000000..e092edeab650
--- /dev/null
+++ b/drivers/net/ethernet/ti/cpsw-phy-sel.c
@@ -0,0 +1,161 @@
+/* Texas Instruments Ethernet Switch Driver
+ *
+ * Copyright (C) 2013 Texas Instruments
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/phy.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+
+#include "cpsw.h"
+
+/* AM33xx SoC specific definitions for the CONTROL port */
+#define AM33XX_GMII_SEL_MODE_MII	0
+#define AM33XX_GMII_SEL_MODE_RMII	1
+#define AM33XX_GMII_SEL_MODE_RGMII	2
+
+#define AM33XX_GMII_SEL_RMII2_IO_CLK_EN	BIT(7)
+#define AM33XX_GMII_SEL_RMII1_IO_CLK_EN	BIT(6)
+
+struct cpsw_phy_sel_priv {
+	struct device	*dev;
+	u32 __iomem	*gmii_sel;
+	bool		rmii_clock_external;
+	void (*cpsw_phy_sel)(struct cpsw_phy_sel_priv *priv,
+			     phy_interface_t phy_mode, int slave);
+};
+
+
+static void cpsw_gmii_sel_am3352(struct cpsw_phy_sel_priv *priv,
+				 phy_interface_t phy_mode, int slave)
+{
+	u32 reg;
+	u32 mask;
+	u32 mode = 0;
+
+	reg = readl(priv->gmii_sel);
+
+	switch (phy_mode) {
+	case PHY_INTERFACE_MODE_RMII:
+		mode = AM33XX_GMII_SEL_MODE_RMII;
+		break;
+
+	case PHY_INTERFACE_MODE_RGMII:
+	case PHY_INTERFACE_MODE_RGMII_ID:
+	case PHY_INTERFACE_MODE_RGMII_RXID:
+	case PHY_INTERFACE_MODE_RGMII_TXID:
+		mode = AM33XX_GMII_SEL_MODE_RGMII;
+		break;
+
+	case PHY_INTERFACE_MODE_MII:
+	default:
+		mode = AM33XX_GMII_SEL_MODE_MII;
+		break;
+	};
+
+	mask = 0x3 << (slave * 2) | BIT(slave + 6);
+	mode <<= slave * 2;
+
+	if (priv->rmii_clock_external) {
+		if (slave == 0)
+			mode |= AM33XX_GMII_SEL_RMII1_IO_CLK_EN;
+		else
+			mode |= AM33XX_GMII_SEL_RMII2_IO_CLK_EN;
+	}
+
+	reg &= ~mask;
+	reg |= mode;
+
+	writel(reg, priv->gmii_sel);
+}
+
+static struct platform_driver cpsw_phy_sel_driver;
+static int match(struct device *dev, void *data)
+{
+	struct device_node *node = (struct device_node *)data;
+	return dev->of_node == node &&
+		dev->driver == &cpsw_phy_sel_driver.driver;
+}
+
+void cpsw_phy_sel(struct device *dev, phy_interface_t phy_mode, int slave)
+{
+	struct device_node *node;
+	struct cpsw_phy_sel_priv *priv;
+
+	node = of_get_child_by_name(dev->of_node, "cpsw-phy-sel");
+	if (!node) {
+		dev_err(dev, "Phy mode driver DT not found\n");
+		return;
+	}
+
+	dev = bus_find_device(&platform_bus_type, NULL, node, match);
+	priv = dev_get_drvdata(dev);
+
+	priv->cpsw_phy_sel(priv, phy_mode, slave);
+}
+EXPORT_SYMBOL_GPL(cpsw_phy_sel);
+
+static const struct of_device_id cpsw_phy_sel_id_table[] = {
+	{
+		.compatible	= "ti,am3352-cpsw-phy-sel",
+		.data		= &cpsw_gmii_sel_am3352,
+	},
+	{}
+};
+MODULE_DEVICE_TABLE(of, cpsw_phy_sel_id_table);
+
+static int cpsw_phy_sel_probe(struct platform_device *pdev)
+{
+	struct resource	*res;
+	const struct of_device_id *of_id;
+	struct cpsw_phy_sel_priv *priv;
+
+	of_id = of_match_node(cpsw_phy_sel_id_table, pdev->dev.of_node);
+	if (!of_id)
+		return -EINVAL;
+
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv) {
+		dev_err(&pdev->dev, "unable to alloc memory for cpsw phy sel\n");
+		return -ENOMEM;
+	}
+
+	priv->cpsw_phy_sel = of_id->data;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "gmii-sel");
+	priv->gmii_sel = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(priv->gmii_sel))
+		return PTR_ERR(priv->gmii_sel);
+
+	if (of_find_property(pdev->dev.of_node, "rmii-clock-ext", NULL))
+		priv->rmii_clock_external = true;
+
+	dev_set_drvdata(&pdev->dev, priv);
+
+	return 0;
+}
+
+static struct platform_driver cpsw_phy_sel_driver = {
+	.probe		= cpsw_phy_sel_probe,
+	.driver		= {
+		.name	= "cpsw-phy-sel",
+		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(cpsw_phy_sel_id_table),
+	},
+};
+
+module_platform_driver(cpsw_phy_sel_driver);
+MODULE_AUTHOR("Mugunthan V N <mugunthanvnm@ti.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/net/ethernet/ti/cpsw.h b/drivers/net/ethernet/ti/cpsw.h
index eb3e101ec048..574f49da693f 100644
--- a/drivers/net/ethernet/ti/cpsw.h
+++ b/drivers/net/ethernet/ti/cpsw.h
@@ -39,4 +39,6 @@ struct cpsw_platform_data {
 	bool	dual_emac;	/* Enable Dual EMAC mode */
 };
 
+void cpsw_phy_sel(struct device *dev, phy_interface_t phy_mode, int slave);
+
 #endif /* __CPSW_H__ */
-- 
cgit 


From 388367a5a9fbbb86db815ab069c8d5e970d2b86e Mon Sep 17 00:00:00 2001
From: Mugunthan V N <mugunthanvnm@ti.com>
Date: Sat, 21 Sep 2013 00:50:40 +0530
Subject: drivers: net: cpsw: use cpsw-phy-sel driver to configure phy mode

Phy mode can be configured via the cpsw-phy-sel driver, this patch enabled the
cpsw driver to utilise the api provided by the cpsw-phy-sel driver to configure
the phy mode.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Tested-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/ti/cpsw.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 01c42e1b5b11..5efb37bf0681 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -1021,6 +1021,10 @@ static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv)
 		dev_info(priv->dev, "phy found : id is : 0x%x\n",
 			 slave->phy->phy_id);
 		phy_start(slave->phy);
+
+		/* Configure GMII_SEL register */
+		cpsw_phy_sel(&priv->pdev->dev, slave->phy->interface,
+			     slave->slave_num);
 	}
 }
 
-- 
cgit 


From 39ffbd917c6230ca503edcd90de6b373f34b6b1a Mon Sep 17 00:00:00 2001
From: Mugunthan V N <mugunthanvnm@ti.com>
Date: Sat, 21 Sep 2013 00:50:41 +0530
Subject: ARM: dts: am33xx: adopt to cpsw-phy-sel driver to configure phy mode

Add DT entries for the phy mode selection in AM33xx SoC using cpsw-phy-sel
driver.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Tested-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/arm/boot/dts/am33xx.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index f9c5da9c7fe1..d76ae24c9745 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -594,6 +594,12 @@
 				/* Filled in by U-Boot */
 				mac-address = [ 00 00 00 00 00 00 ];
 			};
+
+			phy_sel: cpsw-phy-sel@44e10650 {
+				compatible = "ti,am3352-cpsw-phy-sel";
+				reg= <0x44e10650 0x4>;
+				reg-names = "gmii-sel";
+			};
 		};
 
 		ocmcram: ocmcram@40300000 {
-- 
cgit 


From 8c27bd75f04fb9cb70c69c3cfe24f4e6d8e15906 Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Fri, 20 Sep 2013 22:32:55 +0200
Subject: tcp: syncookies: reduce cookie lifetime to 128 seconds

We currently accept cookies that were created less than 4 minutes ago
(ie, cookies with counter delta 0-3).  Combined with the 8 mss table
values, this yields 32 possible values (out of 2**32) that will be valid.

Reducing the lifetime to < 2 minutes halves the guessing chance while
still providing a large enough period.

While at it, get rid of jiffies value -- they overflow too quickly on
32 bit platforms.

getnstimeofday is used to create a counter that increments every 64s.
perf shows getnstimeofday cost is negible compared to sha_transform;
normal tcp initial sequence number generation uses getnstimeofday, too.

Reported-by: Jakob Lell <jakob@jakoblell.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/tcp.h     | 18 ++++++++++++++++++
 net/ipv4/syncookies.c | 31 ++++++++++---------------------
 net/ipv6/syncookies.c | 24 +++++++-----------------
 3 files changed, 35 insertions(+), 38 deletions(-)

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 0e47551e9bdb..de870ee5582d 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -481,6 +481,24 @@ int __cookie_v4_check(const struct iphdr *iph, const struct tcphdr *th,
 struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 			     struct ip_options *opt);
 #ifdef CONFIG_SYN_COOKIES
+#include <linux/ktime.h>
+
+/* Syncookies use a monotonic timer which increments every 64 seconds.
+ * This counter is used both as a hash input and partially encoded into
+ * the cookie value.  A cookie is only validated further if the delta
+ * between the current counter value and the encoded one is less than this,
+ * i.e. a sent cookie is valid only at most for 128 seconds (or less if
+ * the counter advances immediately after a cookie is generated).
+ */
+#define MAX_SYNCOOKIE_AGE 2
+
+static inline u32 tcp_cookie_time(void)
+{
+	struct timespec now;
+	getnstimeofday(&now);
+	return now.tv_sec >> 6; /* 64 seconds granularity */
+}
+
 u32 __cookie_v4_init_sequence(const struct iphdr *iph, const struct tcphdr *th,
 			      u16 *mssp);
 __u32 cookie_v4_init_sequence(struct sock *sk, struct sk_buff *skb, __u16 *mss);
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index 14a15c49129d..b6ea2979a2b7 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -89,8 +89,7 @@ __u32 cookie_init_timestamp(struct request_sock *req)
 
 
 static __u32 secure_tcp_syn_cookie(__be32 saddr, __be32 daddr, __be16 sport,
-				   __be16 dport, __u32 sseq, __u32 count,
-				   __u32 data)
+				   __be16 dport, __u32 sseq, __u32 data)
 {
 	/*
 	 * Compute the secure sequence number.
@@ -102,7 +101,7 @@ static __u32 secure_tcp_syn_cookie(__be32 saddr, __be32 daddr, __be16 sport,
 	 * As an extra hack, we add a small "data" value that encodes the
 	 * MSS into the second hash value.
 	 */
-
+	u32 count = tcp_cookie_time();
 	return (cookie_hash(saddr, daddr, sport, dport, 0, 0) +
 		sseq + (count << COOKIEBITS) +
 		((cookie_hash(saddr, daddr, sport, dport, count, 1) + data)
@@ -114,22 +113,21 @@ static __u32 secure_tcp_syn_cookie(__be32 saddr, __be32 daddr, __be16 sport,
  * If the syncookie is bad, the data returned will be out of
  * range.  This must be checked by the caller.
  *
- * The count value used to generate the cookie must be within
- * "maxdiff" if the current (passed-in) "count".  The return value
- * is (__u32)-1 if this test fails.
+ * The count value used to generate the cookie must be less than
+ * MAX_SYNCOOKIE_AGE minutes in the past.
+ * The return value (__u32)-1 if this test fails.
  */
 static __u32 check_tcp_syn_cookie(__u32 cookie, __be32 saddr, __be32 daddr,
-				  __be16 sport, __be16 dport, __u32 sseq,
-				  __u32 count, __u32 maxdiff)
+				  __be16 sport, __be16 dport, __u32 sseq)
 {
-	__u32 diff;
+	u32 diff, count = tcp_cookie_time();
 
 	/* Strip away the layers from the cookie */
 	cookie -= cookie_hash(saddr, daddr, sport, dport, 0, 0) + sseq;
 
 	/* Cookie is now reduced to (count * 2^24) ^ (hash % 2^24) */
 	diff = (count - (cookie >> COOKIEBITS)) & ((__u32) - 1 >> COOKIEBITS);
-	if (diff >= maxdiff)
+	if (diff >= MAX_SYNCOOKIE_AGE)
 		return (__u32)-1;
 
 	return (cookie -
@@ -173,7 +171,7 @@ u32 __cookie_v4_init_sequence(const struct iphdr *iph, const struct tcphdr *th,
 
 	return secure_tcp_syn_cookie(iph->saddr, iph->daddr,
 				     th->source, th->dest, ntohl(th->seq),
-				     jiffies / (HZ * 60), mssind);
+				     mssind);
 }
 EXPORT_SYMBOL_GPL(__cookie_v4_init_sequence);
 
@@ -188,13 +186,6 @@ __u32 cookie_v4_init_sequence(struct sock *sk, struct sk_buff *skb, __u16 *mssp)
 	return __cookie_v4_init_sequence(iph, th, mssp);
 }
 
-/*
- * This (misnamed) value is the age of syncookie which is permitted.
- * Its ideal value should be dependent on TCP_TIMEOUT_INIT and
- * sysctl_tcp_retries1. It's a rather complicated formula (exponential
- * backoff) to compute at runtime so it's currently hardcoded here.
- */
-#define COUNTER_TRIES 4
 /*
  * Check if a ack sequence number is a valid syncookie.
  * Return the decoded mss if it is, or 0 if not.
@@ -204,9 +195,7 @@ int __cookie_v4_check(const struct iphdr *iph, const struct tcphdr *th,
 {
 	__u32 seq = ntohl(th->seq) - 1;
 	__u32 mssind = check_tcp_syn_cookie(cookie, iph->saddr, iph->daddr,
-					    th->source, th->dest, seq,
-					    jiffies / (HZ * 60),
-					    COUNTER_TRIES);
+					    th->source, th->dest, seq);
 
 	return mssind < ARRAY_SIZE(msstab) ? msstab[mssind] : 0;
 }
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index bf63ac8a49b9..13ca0a0ea680 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -36,14 +36,6 @@ static __u16 const msstab[] = {
 	9000 - 60,
 };
 
-/*
- * This (misnamed) value is the age of syncookie which is permitted.
- * Its ideal value should be dependent on TCP_TIMEOUT_INIT and
- * sysctl_tcp_retries1. It's a rather complicated formula (exponential
- * backoff) to compute at runtime so it's currently hardcoded here.
- */
-#define COUNTER_TRIES 4
-
 static inline struct sock *get_cookie_sock(struct sock *sk, struct sk_buff *skb,
 					   struct request_sock *req,
 					   struct dst_entry *dst)
@@ -86,8 +78,9 @@ static u32 cookie_hash(const struct in6_addr *saddr, const struct in6_addr *dadd
 static __u32 secure_tcp_syn_cookie(const struct in6_addr *saddr,
 				   const struct in6_addr *daddr,
 				   __be16 sport, __be16 dport, __u32 sseq,
-				   __u32 count, __u32 data)
+				   __u32 data)
 {
+	u32 count = tcp_cookie_time();
 	return (cookie_hash(saddr, daddr, sport, dport, 0, 0) +
 		sseq + (count << COOKIEBITS) +
 		((cookie_hash(saddr, daddr, sport, dport, count, 1) + data)
@@ -96,15 +89,14 @@ static __u32 secure_tcp_syn_cookie(const struct in6_addr *saddr,
 
 static __u32 check_tcp_syn_cookie(__u32 cookie, const struct in6_addr *saddr,
 				  const struct in6_addr *daddr, __be16 sport,
-				  __be16 dport, __u32 sseq, __u32 count,
-				  __u32 maxdiff)
+				  __be16 dport, __u32 sseq)
 {
-	__u32 diff;
+	__u32 diff, count = tcp_cookie_time();
 
 	cookie -= cookie_hash(saddr, daddr, sport, dport, 0, 0) + sseq;
 
 	diff = (count - (cookie >> COOKIEBITS)) & ((__u32) -1 >> COOKIEBITS);
-	if (diff >= maxdiff)
+	if (diff >= MAX_SYNCOOKIE_AGE)
 		return (__u32)-1;
 
 	return (cookie -
@@ -125,8 +117,7 @@ u32 __cookie_v6_init_sequence(const struct ipv6hdr *iph,
 	*mssp = msstab[mssind];
 
 	return secure_tcp_syn_cookie(&iph->saddr, &iph->daddr, th->source,
-				     th->dest, ntohl(th->seq),
-				     jiffies / (HZ * 60), mssind);
+				     th->dest, ntohl(th->seq), mssind);
 }
 EXPORT_SYMBOL_GPL(__cookie_v6_init_sequence);
 
@@ -146,8 +137,7 @@ int __cookie_v6_check(const struct ipv6hdr *iph, const struct tcphdr *th,
 {
 	__u32 seq = ntohl(th->seq) - 1;
 	__u32 mssind = check_tcp_syn_cookie(cookie, &iph->saddr, &iph->daddr,
-					    th->source, th->dest, seq,
-					    jiffies / (HZ * 60), COUNTER_TRIES);
+					    th->source, th->dest, seq);
 
 	return mssind < ARRAY_SIZE(msstab) ? msstab[mssind] : 0;
 }
-- 
cgit 


From 086293542b991fb88a2e41ae7b4f82ac65a20e1a Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Fri, 20 Sep 2013 22:32:56 +0200
Subject: tcp: syncookies: reduce mss table to four values

Halve mss table size to make blind cookie guessing more difficult.
This is sad since the tables were already small, but there
is little alternative except perhaps adding more precise mss information
in the tcp timestamp.  Timestamps are unfortunately not ubiquitous.

Guessing all possible cookie values still has 8-in 2**32 chance.

Reported-by: Jakob Lell <jakob@jakoblell.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/syncookies.c | 22 +++++++++++-----------
 net/ipv6/syncookies.c | 15 +++++++++------
 2 files changed, 20 insertions(+), 17 deletions(-)

diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index b6ea2979a2b7..15e024105f91 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -136,22 +136,22 @@ static __u32 check_tcp_syn_cookie(__u32 cookie, __be32 saddr, __be32 daddr,
 }
 
 /*
- * MSS Values are taken from the 2009 paper
- * 'Measuring TCP Maximum Segment Size' by S. Alcock and R. Nelson:
- *  - values 1440 to 1460 accounted for 80% of observed mss values
- *  - values outside the 536-1460 range are rare (<0.2%).
+ * MSS Values are chosen based on the 2011 paper
+ * 'An Analysis of TCP Maximum Segement Sizes' by S. Alcock and R. Nelson.
+ * Values ..
+ *  .. lower than 536 are rare (< 0.2%)
+ *  .. between 537 and 1299 account for less than < 1.5% of observed values
+ *  .. in the 1300-1349 range account for about 15 to 20% of observed mss values
+ *  .. exceeding 1460 are very rare (< 0.04%)
  *
- * Table must be sorted.
+ *  1460 is the single most frequently announced mss value (30 to 46% depending
+ *  on monitor location).  Table must be sorted.
  */
 static __u16 const msstab[] = {
-	64,
-	512,
 	536,
-	1024,
-	1440,
+	1300,
+	1440,	/* 1440, 1452: PPPoE */
 	1460,
-	4312,
-	8960,
 };
 
 /*
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index 13ca0a0ea680..d703218a653b 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -24,15 +24,18 @@
 #define COOKIEBITS 24	/* Upper bits store count */
 #define COOKIEMASK (((__u32)1 << COOKIEBITS) - 1)
 
-/* Table must be sorted. */
+/* RFC 2460, Section 8.3:
+ * [ipv6 tcp] MSS must be computed as the maximum packet size minus 60 [..]
+ *
+ * Due to IPV6_MIN_MTU=1280 the lowest possible MSS is 1220, which allows
+ * using higher values than ipv4 tcp syncookies.
+ * The other values are chosen based on ethernet (1500 and 9k MTU), plus
+ * one that accounts for common encap (PPPoe) overhead. Table must be sorted.
+ */
 static __u16 const msstab[] = {
-	64,
-	512,
-	536,
-	1280 - 60,
+	1280 - 60, /* IPV6_MIN_MTU - 60 */
 	1480 - 60,
 	1500 - 60,
-	4460 - 60,
 	9000 - 60,
 };
 
-- 
cgit 


From b0983d3c9b132c33b6fb2e28d157a1edc18a173c Mon Sep 17 00:00:00 2001
From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Fri, 20 Sep 2013 13:56:58 -0700
Subject: tcp: fix dynamic right sizing

Dynamic Right Sizing (DRS) is supposed to open TCP receive window
automatically, but suffers from two bugs, presented by order
of importance.

1) tcp_rcv_space_adjust() fix :

Using twice the last received amount is very pessimistic,
because it doesn't allow fast recovery or proper slow start
ramp up, if sender wants to increase cwin by 100% every RTT.

copied = bytes received in previous RTT

2*copied = bytes we expect to receive in next RTT

4*copied = bytes we need to advertise in rwin at end of next RTT

DRS is one RTT late, it needs a 4x factor.

If sender is not using ABC, and increases cwin by 50% every rtt,
then we needed 1.5*1.5 = 2.25 factor.
This is probably why this bug was not really noticed.

2) There is no window adjustment after first RTT. DRS triggers only
  after the second RTT.
  DRS needs two RTT to initialize, so tcp_fixup_rcvbuf() should setup
  sk_rcvbuf to allow proper window grow for first two RTT.

This patch increases TCP efficiency particularly for large RTT flows
when autotuning is used at the receiver, and more particularly
in presence of packet losses.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Cc: Van Jacobson <vanj@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/tcp_input.c | 84 +++++++++++++++++++++++++++++++++-------------------
 1 file changed, 53 insertions(+), 31 deletions(-)

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 25a89eaa669d..5d083855c111 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -355,6 +355,12 @@ static void tcp_fixup_rcvbuf(struct sock *sk)
 	rcvmem = 2 * SKB_TRUESIZE(mss + MAX_TCP_HEADER) *
 		 tcp_default_init_rwnd(mss);
 
+	/* Dynamic Right Sizing (DRS) has 2 to 3 RTT latency
+	 * Allow enough cushion so that sender is not limited by our window
+	 */
+	if (sysctl_tcp_moderate_rcvbuf)
+		rcvmem <<= 2;
+
 	if (sk->sk_rcvbuf < rcvmem)
 		sk->sk_rcvbuf = min(rcvmem, sysctl_tcp_rmem[2]);
 }
@@ -373,6 +379,8 @@ void tcp_init_buffer_space(struct sock *sk)
 		tcp_fixup_sndbuf(sk);
 
 	tp->rcvq_space.space = tp->rcv_wnd;
+	tp->rcvq_space.time = tcp_time_stamp;
+	tp->rcvq_space.seq = tp->copied_seq;
 
 	maxwin = tcp_full_space(sk);
 
@@ -512,48 +520,62 @@ void tcp_rcv_space_adjust(struct sock *sk)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	int time;
-	int space;
-
-	if (tp->rcvq_space.time == 0)
-		goto new_measure;
+	int copied;
 
 	time = tcp_time_stamp - tp->rcvq_space.time;
 	if (time < (tp->rcv_rtt_est.rtt >> 3) || tp->rcv_rtt_est.rtt == 0)
 		return;
 
-	space = 2 * (tp->copied_seq - tp->rcvq_space.seq);
+	/* Number of bytes copied to user in last RTT */
+	copied = tp->copied_seq - tp->rcvq_space.seq;
+	if (copied <= tp->rcvq_space.space)
+		goto new_measure;
+
+	/* A bit of theory :
+	 * copied = bytes received in previous RTT, our base window
+	 * To cope with packet losses, we need a 2x factor
+	 * To cope with slow start, and sender growing its cwin by 100 %
+	 * every RTT, we need a 4x factor, because the ACK we are sending
+	 * now is for the next RTT, not the current one :
+	 * <prev RTT . ><current RTT .. ><next RTT .... >
+	 */
+
+	if (sysctl_tcp_moderate_rcvbuf &&
+	    !(sk->sk_userlocks & SOCK_RCVBUF_LOCK)) {
+		int rcvwin, rcvmem, rcvbuf;
 
-	space = max(tp->rcvq_space.space, space);
+		/* minimal window to cope with packet losses, assuming
+		 * steady state. Add some cushion because of small variations.
+		 */
+		rcvwin = (copied << 1) + 16 * tp->advmss;
 
-	if (tp->rcvq_space.space != space) {
-		int rcvmem;
+		/* If rate increased by 25%,
+		 *	assume slow start, rcvwin = 3 * copied
+		 * If rate increased by 50%,
+		 *	assume sender can use 2x growth, rcvwin = 4 * copied
+		 */
+		if (copied >=
+		    tp->rcvq_space.space + (tp->rcvq_space.space >> 2)) {
+			if (copied >=
+			    tp->rcvq_space.space + (tp->rcvq_space.space >> 1))
+				rcvwin <<= 1;
+			else
+				rcvwin += (rcvwin >> 1);
+		}
 
-		tp->rcvq_space.space = space;
+		rcvmem = SKB_TRUESIZE(tp->advmss + MAX_TCP_HEADER);
+		while (tcp_win_from_space(rcvmem) < tp->advmss)
+			rcvmem += 128;
 
-		if (sysctl_tcp_moderate_rcvbuf &&
-		    !(sk->sk_userlocks & SOCK_RCVBUF_LOCK)) {
-			int new_clamp = space;
+		rcvbuf = min(rcvwin / tp->advmss * rcvmem, sysctl_tcp_rmem[2]);
+		if (rcvbuf > sk->sk_rcvbuf) {
+			sk->sk_rcvbuf = rcvbuf;
 
-			/* Receive space grows, normalize in order to
-			 * take into account packet headers and sk_buff
-			 * structure overhead.
-			 */
-			space /= tp->advmss;
-			if (!space)
-				space = 1;
-			rcvmem = SKB_TRUESIZE(tp->advmss + MAX_TCP_HEADER);
-			while (tcp_win_from_space(rcvmem) < tp->advmss)
-				rcvmem += 128;
-			space *= rcvmem;
-			space = min(space, sysctl_tcp_rmem[2]);
-			if (space > sk->sk_rcvbuf) {
-				sk->sk_rcvbuf = space;
-
-				/* Make the window clamp follow along.  */
-				tp->window_clamp = new_clamp;
-			}
+			/* Make the window clamp follow along.  */
+			tp->window_clamp = rcvwin;
 		}
 	}
+	tp->rcvq_space.space = copied;
 
 new_measure:
 	tp->rcvq_space.seq = tp->copied_seq;
@@ -5674,8 +5696,8 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 			tcp_init_congestion_control(sk);
 
 			tcp_mtup_init(sk);
-			tcp_init_buffer_space(sk);
 			tp->copied_seq = tp->rcv_nxt;
+			tcp_init_buffer_space(sk);
 		}
 		smp_mb();
 		tcp_set_state(sk, TCP_ESTABLISHED);
-- 
cgit 


From 8ce440610357b77587433d0df647cea69a6890a8 Mon Sep 17 00:00:00 2001
From: Cong Wang <amwang@redhat.com>
Date: Sat, 21 Sep 2013 11:12:21 +0800
Subject: ipv6: do not allow ipv6 module to be removed

There was some bug report on ipv6 module removal path before.
Also, as Stephen pointed out, after vxlan module gets ipv6 support,
the ipv6 stub it used is not safe against this module removal either.
So, let's just remove inet6_exit() so that ipv6 module will not be
able to be unloaded.

Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/af_inet6.c | 48 ------------------------------------------------
 1 file changed, 48 deletions(-)

diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 7c96100b021e..4966b124dc2e 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -1028,52 +1028,4 @@ out_unregister_tcp_proto:
 }
 module_init(inet6_init);
 
-static void __exit inet6_exit(void)
-{
-	if (disable_ipv6_mod)
-		return;
-
-	/* First of all disallow new sockets creation. */
-	sock_unregister(PF_INET6);
-	/* Disallow any further netlink messages */
-	rtnl_unregister_all(PF_INET6);
-
-	udpv6_exit();
-	udplitev6_exit();
-	tcpv6_exit();
-
-	/* Cleanup code parts. */
-	ipv6_packet_cleanup();
-	ipv6_frag_exit();
-	ipv6_exthdrs_exit();
-	addrconf_cleanup();
-	ip6_flowlabel_cleanup();
-	ndisc_late_cleanup();
-	ip6_route_cleanup();
-#ifdef CONFIG_PROC_FS
-
-	/* Cleanup code parts. */
-	if6_proc_exit();
-	ipv6_misc_proc_exit();
-	udplite6_proc_exit();
-	raw6_proc_exit();
-#endif
-	ipv6_netfilter_fini();
-	ipv6_stub = NULL;
-	igmp6_cleanup();
-	ndisc_cleanup();
-	ip6_mr_cleanup();
-	icmpv6_cleanup();
-	rawv6_exit();
-
-	unregister_pernet_subsys(&inet6_net_ops);
-	proto_unregister(&rawv6_prot);
-	proto_unregister(&udplitev6_prot);
-	proto_unregister(&udpv6_prot);
-	proto_unregister(&tcpv6_prot);
-
-	rcu_barrier(); /* Wait for completion of call_rcu()'s */
-}
-module_exit(inet6_exit);
-
 MODULE_ALIAS_NETPROTO(PF_INET6);
-- 
cgit 


From 519192aaae38e24d6b32d3d55d791fe294981185 Mon Sep 17 00:00:00 2001
From: Thomas Huth <thuth@linux.vnet.ibm.com>
Date: Mon, 9 Sep 2013 17:32:56 +0200
Subject: KVM: Add documentation for kvm->srcu lock

This patch documents the kvm->srcu lock (using the information from
a mail which has been posted by Marcelo Tosatti to the kvm mailing
list some months ago, see the following URL for details:
http://www.mail-archive.com/kvm@vger.kernel.org/msg90040.html )

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 Documentation/virtual/kvm/locking.txt | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Documentation/virtual/kvm/locking.txt b/Documentation/virtual/kvm/locking.txt
index 41b7ac9884b5..a9f366e73c8e 100644
--- a/Documentation/virtual/kvm/locking.txt
+++ b/Documentation/virtual/kvm/locking.txt
@@ -151,3 +151,14 @@ Type:		spinlock_t
 Arch:		any
 Protects:	-shadow page/shadow tlb entry
 Comment:	it is a spinlock since it is used in mmu notifier.
+
+Name:		kvm->srcu
+Type:		srcu lock
+Arch:		any
+Protects:	- kvm->memslots
+		- kvm->buses
+Comment:	The srcu read lock must be held while accessing memslots (e.g.
+		when using gfn_to_* functions) and while accessing in-kernel
+		MMIO/PIO address->device structure mapping (kvm->buses).
+		The srcu index can be stored in kvm_vcpu->srcu_idx per vcpu
+		if it is needed by multiple functions.
-- 
cgit 


From 98fda169290b3b28c0f2db2b8f02290c13da50ef Mon Sep 17 00:00:00 2001
From: Radim Krčmář <rkrcmar@redhat.com>
Date: Wed, 4 Sep 2013 22:32:24 +0200
Subject: kvm: remove .done from struct kvm_async_pf
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

'.done' is used to mark the completion of 'async_pf_execute()', but
'cancel_work_sync()' returns true when the work was canceled, so we
use it instead.

Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 include/linux/kvm_host.h | 1 -
 virt/kvm/async_pf.c      | 5 +----
 2 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 0fbbc7aa02cb..749bdb12cd15 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -190,7 +190,6 @@ struct kvm_async_pf {
 	unsigned long addr;
 	struct kvm_arch_async_pf arch;
 	struct page *page;
-	bool done;
 };
 
 void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu);
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c
index 8a39dda7a325..b197950ac4d5 100644
--- a/virt/kvm/async_pf.c
+++ b/virt/kvm/async_pf.c
@@ -75,7 +75,6 @@ static void async_pf_execute(struct work_struct *work)
 	spin_lock(&vcpu->async_pf.lock);
 	list_add_tail(&apf->link, &vcpu->async_pf.done);
 	apf->page = page;
-	apf->done = true;
 	spin_unlock(&vcpu->async_pf.lock);
 
 	/*
@@ -99,9 +98,8 @@ void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu)
 		struct kvm_async_pf *work =
 			list_entry(vcpu->async_pf.queue.next,
 				   typeof(*work), queue);
-		cancel_work_sync(&work->work);
 		list_del(&work->queue);
-		if (!work->done) { /* work was canceled */
+		if (cancel_work_sync(&work->work)) {
 			mmdrop(work->mm);
 			kvm_put_kvm(vcpu->kvm); /* == work->vcpu->kvm */
 			kmem_cache_free(async_pf_cache, work);
@@ -166,7 +164,6 @@ int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, gfn_t gfn,
 		return 0;
 
 	work->page = NULL;
-	work->done = false;
 	work->vcpu = vcpu;
 	work->gva = gva;
 	work->addr = gfn_to_hva(vcpu->kvm, gfn);
-- 
cgit 


From 9e3e4dbf4469ba19971fbd547f1be713604c7f5e Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Tue, 3 Sep 2013 21:11:45 +0200
Subject: KVM: nVMX: Replace kvm_set_cr0 with vmx_set_cr0 in
 load_vmcs12_host_state

kvm_set_cr0 performs checks on the state transition that may prevent
loading L1's cr0. For now we rely on the hardware to catch invalid
states loaded by L1 into its VMCS. Still, consistency checks on the host
state part of the VMCS on guest entry will have to be improved later on.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/vmx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index a1216de9ffda..4de2b7990273 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -8199,7 +8199,7 @@ static void load_vmcs12_host_state(struct kvm_vcpu *vcpu,
 	 * fpu_active (which may have changed).
 	 * Note that vmx_set_cr0 refers to efer set above.
 	 */
-	kvm_set_cr0(vcpu, vmcs12->host_cr0);
+	vmx_set_cr0(vcpu, vmcs12->host_cr0);
 	/*
 	 * If we did fpu_activate()/fpu_deactivate() during L2's run, we need
 	 * to apply the same changes to L1's vmcs. We just set cr0 correctly,
-- 
cgit 


From 59ab5a8f4445699e238c4c46b3da63bb9dc02897 Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Thu, 8 Aug 2013 16:26:29 +0200
Subject: KVM: nVMX: Do not set identity page map for L2

Fiddling with CR3 for L2 is L1's job. It may set its own, different
identity map or simple leave it alone if unrestricted guest mode is
enabled. This also fixes reading back the current CR3 on L2 exits for
reporting it to L1.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/vmx.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 4de2b7990273..6b9aa87074b0 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -3376,8 +3376,10 @@ static void vmx_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
 	if (enable_ept) {
 		eptp = construct_eptp(cr3);
 		vmcs_write64(EPT_POINTER, eptp);
-		guest_cr3 = is_paging(vcpu) ? kvm_read_cr3(vcpu) :
-			vcpu->kvm->arch.ept_identity_map_addr;
+		if (is_paging(vcpu) || is_guest_mode(vcpu))
+			guest_cr3 = kvm_read_cr3(vcpu);
+		else
+			guest_cr3 = vcpu->kvm->arch.ept_identity_map_addr;
 		ept_load_pdptrs(vcpu);
 	}
 
-- 
cgit 


From 10ba54a58949e222dcb9cd9fb64cd3e7f53fc6b1 Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Thu, 8 Aug 2013 16:26:31 +0200
Subject: KVM: nVMX: Implement support for EFER saving on VM-exit

Implement and advertise VM_EXIT_SAVE_IA32_EFER. L0 traps EFER writes
unconditionally, so we always find the current L2 value in the
architectural state.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/vmx.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 6b9aa87074b0..58d07a1ced69 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2206,7 +2206,7 @@ static __init void nested_vmx_setup_ctls_msrs(void)
 #endif
 		VM_EXIT_LOAD_IA32_PAT | VM_EXIT_SAVE_IA32_PAT;
 	nested_vmx_exit_ctls_high |= (VM_EXIT_ALWAYSON_WITHOUT_TRUE_MSR |
-				      VM_EXIT_LOAD_IA32_EFER);
+		VM_EXIT_LOAD_IA32_EFER | VM_EXIT_SAVE_IA32_EFER);
 
 	/* entry controls */
 	rdmsr(MSR_IA32_VMX_ENTRY_CTLS,
@@ -8130,6 +8130,8 @@ static void prepare_vmcs12(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
 	vmcs12->guest_ia32_debugctl = vmcs_read64(GUEST_IA32_DEBUGCTL);
 	if (vmcs12->vm_exit_controls & VM_EXIT_SAVE_IA32_PAT)
 		vmcs12->guest_ia32_pat = vmcs_read64(GUEST_IA32_PAT);
+	if (vmcs12->vm_exit_controls & VM_EXIT_SAVE_IA32_EFER)
+		vmcs12->guest_ia32_efer = vcpu->arch.efer;
 	vmcs12->guest_sysenter_cs = vmcs_read32(GUEST_SYSENTER_CS);
 	vmcs12->guest_sysenter_esp = vmcs_readl(GUEST_SYSENTER_ESP);
 	vmcs12->guest_sysenter_eip = vmcs_readl(GUEST_SYSENTER_EIP);
-- 
cgit 


From 92fbc7b195b824e201d9f06f2b93105f72384d65 Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Thu, 8 Aug 2013 16:26:33 +0200
Subject: KVM: nVMX: Enable unrestricted guest mode support

Now that we provide EPT support, there is no reason to torture our
guests by hiding the relieving unrestricted guest mode feature. We just
need to relax CR0 checks for always-on bits as PE and PG can now be
switched off.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/vmx.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 58d07a1ced69..e6e8fbc02d5e 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2252,6 +2252,7 @@ static __init void nested_vmx_setup_ctls_msrs(void)
 	nested_vmx_secondary_ctls_low = 0;
 	nested_vmx_secondary_ctls_high &=
 		SECONDARY_EXEC_VIRTUALIZE_APIC_ACCESSES |
+		SECONDARY_EXEC_UNRESTRICTED_GUEST |
 		SECONDARY_EXEC_WBINVD_EXITING;
 
 	if (enable_ept) {
@@ -4877,6 +4878,17 @@ vmx_patch_hypercall(struct kvm_vcpu *vcpu, unsigned char *hypercall)
 	hypercall[2] = 0xc1;
 }
 
+static bool nested_cr0_valid(struct vmcs12 *vmcs12, unsigned long val)
+{
+	unsigned long always_on = VMXON_CR0_ALWAYSON;
+
+	if (nested_vmx_secondary_ctls_high &
+		SECONDARY_EXEC_UNRESTRICTED_GUEST &&
+	    nested_cpu_has2(vmcs12, SECONDARY_EXEC_UNRESTRICTED_GUEST))
+		always_on &= ~(X86_CR0_PE | X86_CR0_PG);
+	return (val & always_on) == always_on;
+}
+
 /* called to set cr0 as appropriate for a mov-to-cr0 exit. */
 static int handle_set_cr0(struct kvm_vcpu *vcpu, unsigned long val)
 {
@@ -4895,9 +4907,7 @@ static int handle_set_cr0(struct kvm_vcpu *vcpu, unsigned long val)
 		val = (val & ~vmcs12->cr0_guest_host_mask) |
 			(vmcs12->guest_cr0 & vmcs12->cr0_guest_host_mask);
 
-		/* TODO: will have to take unrestricted guest mode into
-		 * account */
-		if ((val & VMXON_CR0_ALWAYSON) != VMXON_CR0_ALWAYSON)
+		if (!nested_cr0_valid(vmcs12, val))
 			return 1;
 
 		if (kvm_set_cr0(vcpu, val))
@@ -7876,7 +7886,7 @@ static int nested_vmx_run(struct kvm_vcpu *vcpu, bool launch)
 		return 1;
 	}
 
-	if (((vmcs12->guest_cr0 & VMXON_CR0_ALWAYSON) != VMXON_CR0_ALWAYSON) ||
+	if (!nested_cr0_valid(vmcs12, vmcs12->guest_cr0) ||
 	    ((vmcs12->guest_cr4 & VMXON_CR4_ALWAYSON) != VMXON_CR4_ALWAYSON)) {
 		nested_vmx_entry_failure(vcpu, vmcs12,
 			EXIT_REASON_INVALID_STATE, ENTRY_FAIL_DEFAULT);
-- 
cgit 


From 56aba608257b451f663d25313d5ecae134d5557f Mon Sep 17 00:00:00 2001
From: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Date: Thu, 12 Sep 2013 13:00:11 +0530
Subject: Documentation/kvm: Update cpuid documentation for steal time and pv
 eoi

Thanks Michael S Tsirkin for rewriting the description and suggestions.

Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 Documentation/virtual/kvm/cpuid.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/virtual/kvm/cpuid.txt b/Documentation/virtual/kvm/cpuid.txt
index 22ff659bc0fb..3c65feb83010 100644
--- a/Documentation/virtual/kvm/cpuid.txt
+++ b/Documentation/virtual/kvm/cpuid.txt
@@ -43,6 +43,13 @@ KVM_FEATURE_CLOCKSOURCE2           ||     3 || kvmclock available at msrs
 KVM_FEATURE_ASYNC_PF               ||     4 || async pf can be enabled by
                                    ||       || writing to msr 0x4b564d02
 ------------------------------------------------------------------------------
+KVM_FEATURE_STEAL_TIME             ||     5 || steal time can be enabled by
+                                   ||       || writing to msr 0x4b564d03.
+------------------------------------------------------------------------------
+KVM_FEATURE_PV_EOI                 ||     6 || paravirtualized end of interrupt
+                                   ||       || handler can be enabled by writing
+                                   ||       || to msr 0x4b564d04.
+------------------------------------------------------------------------------
 KVM_FEATURE_PV_UNHALT              ||     7 || guest checks this feature bit
                                    ||       || before enabling paravirtualized
                                    ||       || spinlock support.
-- 
cgit 


From 6b948a7276b61ba0bb5a102bd240d2473a751506 Mon Sep 17 00:00:00 2001
From: Thomas Huth <thuth@linux.vnet.ibm.com>
Date: Thu, 12 Sep 2013 10:33:42 +0200
Subject: KVM: s390: Remove dead "rerun vcpu" code

The need for SIE_INTERCEPT_RERUNVCPU has been removed long ago already,
with the following commit:
	f7850c92884b40915001e332a0a33ed4f10158e8
	[S390] remove kvm mmu reload on s390
Since the remainders are dead code, they are now removed by this patch.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/s390/include/asm/kvm_host.h | 1 -
 arch/s390/kvm/intercept.c        | 6 ------
 arch/s390/kvm/kvm-s390.c         | 4 ----
 arch/s390/kvm/kvm-s390.h         | 3 +--
 4 files changed, 1 insertion(+), 13 deletions(-)

diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index e87ecaa2c569..6a0e27be6305 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -220,7 +220,6 @@ struct kvm_s390_interrupt_info {
 /* for local_interrupt.action_flags */
 #define ACTION_STORE_ON_STOP		(1<<0)
 #define ACTION_STOP_ON_STOP		(1<<1)
-#define ACTION_RELOADVCPU_ON_STOP	(1<<2)
 
 struct kvm_s390_local_interrupt {
 	spinlock_t lock;
diff --git a/arch/s390/kvm/intercept.c b/arch/s390/kvm/intercept.c
index 5ee56e5acc23..5ddbbde6f65c 100644
--- a/arch/s390/kvm/intercept.c
+++ b/arch/s390/kvm/intercept.c
@@ -62,12 +62,6 @@ static int handle_stop(struct kvm_vcpu *vcpu)
 
 	trace_kvm_s390_stop_request(vcpu->arch.local_int.action_bits);
 
-	if (vcpu->arch.local_int.action_bits & ACTION_RELOADVCPU_ON_STOP) {
-		vcpu->arch.local_int.action_bits &= ~ACTION_RELOADVCPU_ON_STOP;
-		rc = SIE_INTERCEPT_RERUNVCPU;
-		vcpu->run->exit_reason = KVM_EXIT_INTR;
-	}
-
 	if (vcpu->arch.local_int.action_bits & ACTION_STOP_ON_STOP) {
 		atomic_set_mask(CPUSTAT_STOPPED,
 				&vcpu->arch.sie_block->cpuflags);
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 776dafe918db..e3e7ff77ba44 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -749,7 +749,6 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 	int rc;
 	sigset_t sigsaved;
 
-rerun_vcpu:
 	if (vcpu->sigset_active)
 		sigprocmask(SIG_SETMASK, &vcpu->sigset, &sigsaved);
 
@@ -793,9 +792,6 @@ rerun_vcpu:
 			rc = kvm_handle_sie_intercept(vcpu);
 	} while (!signal_pending(current) && !rc);
 
-	if (rc == SIE_INTERCEPT_RERUNVCPU)
-		goto rerun_vcpu;
-
 	if (signal_pending(current) && !rc) {
 		kvm_run->exit_reason = KVM_EXIT_INTR;
 		rc = -EINTR;
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h
index dc99f1ca4267..a307a854a8d4 100644
--- a/arch/s390/kvm/kvm-s390.h
+++ b/arch/s390/kvm/kvm-s390.h
@@ -28,8 +28,7 @@ typedef int (*intercept_handler_t)(struct kvm_vcpu *vcpu);
 extern unsigned long *vfacilities;
 
 /* negativ values are error codes, positive values for internal conditions */
-#define SIE_INTERCEPT_RERUNVCPU		(1<<0)
-#define SIE_INTERCEPT_UCONTROL		(1<<1)
+#define SIE_INTERCEPT_UCONTROL		(1<<0)
 int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu);
 
 #define VM_EVENT(d_kvm, d_loglevel, d_string, d_args...)\
-- 
cgit 


From 3fb4c40f0715f382ba7092c5d9a1804d45818039 Mon Sep 17 00:00:00 2001
From: Thomas Huth <thuth@linux.vnet.ibm.com>
Date: Thu, 12 Sep 2013 10:33:43 +0200
Subject: KVM: s390: Split up __vcpu_run into three parts

In preparation for the following patch (which will change the indentation
of __vcpu_run quite a bit), this patch puts most of the code from __vcpu_run
into separate functions. The first function handles the code that runs
before the SIE instruction and the other one handles the code that runs
afterwards.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/s390/kvm/kvm-s390.c | 54 +++++++++++++++++++++++++++++++++---------------
 1 file changed, 37 insertions(+), 17 deletions(-)

diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index e3e7ff77ba44..69c7592e80d9 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -689,9 +689,9 @@ static int kvm_s390_handle_requests(struct kvm_vcpu *vcpu)
 	return 0;
 }
 
-static int __vcpu_run(struct kvm_vcpu *vcpu)
+static int vcpu_pre_run(struct kvm_vcpu *vcpu)
 {
-	int rc;
+	int rc, cpuflags;
 
 	memcpy(&vcpu->arch.sie_block->gg14, &vcpu->run->s.regs.gprs[14], 16);
 
@@ -709,28 +709,24 @@ static int __vcpu_run(struct kvm_vcpu *vcpu)
 		return rc;
 
 	vcpu->arch.sie_block->icptcode = 0;
-	VCPU_EVENT(vcpu, 6, "entering sie flags %x",
-		   atomic_read(&vcpu->arch.sie_block->cpuflags));
-	trace_kvm_s390_sie_enter(vcpu,
-				 atomic_read(&vcpu->arch.sie_block->cpuflags));
+	cpuflags = atomic_read(&vcpu->arch.sie_block->cpuflags);
+	VCPU_EVENT(vcpu, 6, "entering sie flags %x", cpuflags);
+	trace_kvm_s390_sie_enter(vcpu, cpuflags);
 
-	/*
-	 * As PF_VCPU will be used in fault handler, between guest_enter
-	 * and guest_exit should be no uaccess.
-	 */
-	preempt_disable();
-	kvm_guest_enter();
-	preempt_enable();
-	rc = sie64a(vcpu->arch.sie_block, vcpu->run->s.regs.gprs);
-	kvm_guest_exit();
+	return 0;
+}
+
+static int vcpu_post_run(struct kvm_vcpu *vcpu, int exit_reason)
+{
+	int rc;
 
 	VCPU_EVENT(vcpu, 6, "exit sie icptcode %d",
 		   vcpu->arch.sie_block->icptcode);
 	trace_kvm_s390_sie_exit(vcpu, vcpu->arch.sie_block->icptcode);
 
-	if (rc > 0)
+	if (exit_reason >= 0) {
 		rc = 0;
-	if (rc < 0) {
+	} else {
 		if (kvm_is_ucontrol(vcpu->kvm)) {
 			rc = SIE_INTERCEPT_UCONTROL;
 		} else {
@@ -741,6 +737,30 @@ static int __vcpu_run(struct kvm_vcpu *vcpu)
 	}
 
 	memcpy(&vcpu->run->s.regs.gprs[14], &vcpu->arch.sie_block->gg14, 16);
+
+	return rc;
+}
+
+static int __vcpu_run(struct kvm_vcpu *vcpu)
+{
+	int rc, exit_reason;
+
+	rc = vcpu_pre_run(vcpu);
+	if (rc)
+		return rc;
+
+	/*
+	 * As PF_VCPU will be used in fault handler, between guest_enter
+	 * and guest_exit should be no uaccess.
+	 */
+	preempt_disable();
+	kvm_guest_enter();
+	preempt_enable();
+	exit_reason = sie64a(vcpu->arch.sie_block, vcpu->run->s.regs.gprs);
+	kvm_guest_exit();
+
+	rc = vcpu_post_run(vcpu, exit_reason);
+
 	return rc;
 }
 
-- 
cgit 


From a76ccff6f5ed89153bf58ef4215b5512a0316877 Mon Sep 17 00:00:00 2001
From: Thomas Huth <thuth@linux.vnet.ibm.com>
Date: Thu, 12 Sep 2013 10:33:44 +0200
Subject: KVM: s390: Push run loop into __vcpu_run

Moved the do-while loop from kvm_arch_vcpu_ioctl_run into __vcpu_run
and the calling of kvm_handle_sie_intercept() into vcpu_post_run()
(so we can add the srcu locks in a proper way in the next patch).

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/s390/kvm/kvm-s390.c | 49 ++++++++++++++++++++++++------------------------
 1 file changed, 25 insertions(+), 24 deletions(-)

diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 69c7592e80d9..8eec7abc5664 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -738,6 +738,13 @@ static int vcpu_post_run(struct kvm_vcpu *vcpu, int exit_reason)
 
 	memcpy(&vcpu->run->s.regs.gprs[14], &vcpu->arch.sie_block->gg14, 16);
 
+	if (rc == 0) {
+		if (kvm_is_ucontrol(vcpu->kvm))
+			rc = -EOPNOTSUPP;
+		else
+			rc = kvm_handle_sie_intercept(vcpu);
+	}
+
 	return rc;
 }
 
@@ -745,21 +752,24 @@ static int __vcpu_run(struct kvm_vcpu *vcpu)
 {
 	int rc, exit_reason;
 
-	rc = vcpu_pre_run(vcpu);
-	if (rc)
-		return rc;
-
-	/*
-	 * As PF_VCPU will be used in fault handler, between guest_enter
-	 * and guest_exit should be no uaccess.
-	 */
-	preempt_disable();
-	kvm_guest_enter();
-	preempt_enable();
-	exit_reason = sie64a(vcpu->arch.sie_block, vcpu->run->s.regs.gprs);
-	kvm_guest_exit();
+	do {
+		rc = vcpu_pre_run(vcpu);
+		if (rc)
+			break;
 
-	rc = vcpu_post_run(vcpu, exit_reason);
+		/*
+		 * As PF_VCPU will be used in fault handler, between
+		 * guest_enter and guest_exit should be no uaccess.
+		 */
+		preempt_disable();
+		kvm_guest_enter();
+		preempt_enable();
+		exit_reason = sie64a(vcpu->arch.sie_block,
+				     vcpu->run->s.regs.gprs);
+		kvm_guest_exit();
+
+		rc = vcpu_post_run(vcpu, exit_reason);
+	} while (!signal_pending(current) && !rc);
 
 	return rc;
 }
@@ -801,16 +811,7 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 	}
 
 	might_fault();
-
-	do {
-		rc = __vcpu_run(vcpu);
-		if (rc)
-			break;
-		if (kvm_is_ucontrol(vcpu->kvm))
-			rc = -EOPNOTSUPP;
-		else
-			rc = kvm_handle_sie_intercept(vcpu);
-	} while (!signal_pending(current) && !rc);
+	rc = __vcpu_run(vcpu);
 
 	if (signal_pending(current) && !rc) {
 		kvm_run->exit_reason = KVM_EXIT_INTR;
-- 
cgit 


From 800c1065c3207a1b04d4ac457a57a37ce19eeb21 Mon Sep 17 00:00:00 2001
From: Thomas Huth <thuth@linux.vnet.ibm.com>
Date: Thu, 12 Sep 2013 10:33:45 +0200
Subject: KVM: s390: Lock kvm->srcu at the appropriate places

The kvm->srcu lock has to be held while accessing the memory of
guests and during certain other actions. This patch now adds
the locks to the __vcpu_run function so that all affected code
is protected now (and additionally to the KVM_S390_STORE_STATUS
ioctl, which can be called out-of-band and needs a separate lock).

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/s390/kvm/diag.c      |  4 +---
 arch/s390/kvm/interrupt.c |  3 +++
 arch/s390/kvm/kvm-s390.c  | 12 ++++++++++++
 3 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/arch/s390/kvm/diag.c b/arch/s390/kvm/diag.c
index 3a74d8af0d69..78d967f180f4 100644
--- a/arch/s390/kvm/diag.c
+++ b/arch/s390/kvm/diag.c
@@ -107,14 +107,13 @@ static int __diag_ipl_functions(struct kvm_vcpu *vcpu)
 
 static int __diag_virtio_hypercall(struct kvm_vcpu *vcpu)
 {
-	int ret, idx;
+	int ret;
 
 	/* No virtio-ccw notification? Get out quickly. */
 	if (!vcpu->kvm->arch.css_support ||
 	    (vcpu->run->s.regs.gprs[1] != KVM_S390_VIRTIO_CCW_NOTIFY))
 		return -EOPNOTSUPP;
 
-	idx = srcu_read_lock(&vcpu->kvm->srcu);
 	/*
 	 * The layout is as follows:
 	 * - gpr 2 contains the subchannel id (passed as addr)
@@ -125,7 +124,6 @@ static int __diag_virtio_hypercall(struct kvm_vcpu *vcpu)
 				      vcpu->run->s.regs.gprs[2],
 				      8, &vcpu->run->s.regs.gprs[3],
 				      vcpu->run->s.regs.gprs[4]);
-	srcu_read_unlock(&vcpu->kvm->srcu, idx);
 
 	/*
 	 * Return cookie in gpr 2, but don't overwrite the register if the
diff --git a/arch/s390/kvm/interrupt.c b/arch/s390/kvm/interrupt.c
index 7f35cb33e510..e7323cd9f109 100644
--- a/arch/s390/kvm/interrupt.c
+++ b/arch/s390/kvm/interrupt.c
@@ -436,6 +436,7 @@ int kvm_s390_handle_wait(struct kvm_vcpu *vcpu)
 	hrtimer_start(&vcpu->arch.ckc_timer, ktime_set (0, sltime) , HRTIMER_MODE_REL);
 	VCPU_EVENT(vcpu, 5, "enabled wait via clock comparator: %llx ns", sltime);
 no_timer:
+	srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx);
 	spin_lock(&vcpu->arch.local_int.float_int->lock);
 	spin_lock_bh(&vcpu->arch.local_int.lock);
 	add_wait_queue(&vcpu->wq, &wait);
@@ -455,6 +456,8 @@ no_timer:
 	remove_wait_queue(&vcpu->wq, &wait);
 	spin_unlock_bh(&vcpu->arch.local_int.lock);
 	spin_unlock(&vcpu->arch.local_int.float_int->lock);
+	vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
+
 	hrtimer_try_to_cancel(&vcpu->arch.ckc_timer);
 	return 0;
 }
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 8eec7abc5664..1e4e7b97337a 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -752,11 +752,18 @@ static int __vcpu_run(struct kvm_vcpu *vcpu)
 {
 	int rc, exit_reason;
 
+	/*
+	 * We try to hold kvm->srcu during most of vcpu_run (except when run-
+	 * ning the guest), so that memslots (and other stuff) are protected
+	 */
+	vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
+
 	do {
 		rc = vcpu_pre_run(vcpu);
 		if (rc)
 			break;
 
+		srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx);
 		/*
 		 * As PF_VCPU will be used in fault handler, between
 		 * guest_enter and guest_exit should be no uaccess.
@@ -767,10 +774,12 @@ static int __vcpu_run(struct kvm_vcpu *vcpu)
 		exit_reason = sie64a(vcpu->arch.sie_block,
 				     vcpu->run->s.regs.gprs);
 		kvm_guest_exit();
+		vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
 
 		rc = vcpu_post_run(vcpu, exit_reason);
 	} while (!signal_pending(current) && !rc);
 
+	srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx);
 	return rc;
 }
 
@@ -968,6 +977,7 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
 {
 	struct kvm_vcpu *vcpu = filp->private_data;
 	void __user *argp = (void __user *)arg;
+	int idx;
 	long r;
 
 	switch (ioctl) {
@@ -981,7 +991,9 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
 		break;
 	}
 	case KVM_S390_STORE_STATUS:
+		idx = srcu_read_lock(&vcpu->kvm->srcu);
 		r = kvm_s390_vcpu_store_status(vcpu, arg);
+		srcu_read_unlock(&vcpu->kvm->srcu, idx);
 		break;
 	case KVM_S390_SET_INITIAL_PSW: {
 		psw_t psw;
-- 
cgit 


From ff7158b2277d2bb942e2d09dd1df9a9d8a7598ab Mon Sep 17 00:00:00 2001
From: Thomas Huth <thuth@linux.vnet.ibm.com>
Date: Thu, 12 Sep 2013 10:33:46 +0200
Subject: KVM: s390: Allow NULL parameter for kvm_s390_get_regs_rre

We're not always interested in both registers that are specified
for an RRE instruction. So allow NULL as parameter, too, to indicate
that we do not need the corresponding value.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/s390/kvm/kvm-s390.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h
index a307a854a8d4..b44912a32949 100644
--- a/arch/s390/kvm/kvm-s390.h
+++ b/arch/s390/kvm/kvm-s390.h
@@ -90,8 +90,10 @@ static inline void kvm_s390_get_base_disp_sse(struct kvm_vcpu *vcpu,
 
 static inline void kvm_s390_get_regs_rre(struct kvm_vcpu *vcpu, int *r1, int *r2)
 {
-	*r1 = (vcpu->arch.sie_block->ipb & 0x00f00000) >> 20;
-	*r2 = (vcpu->arch.sie_block->ipb & 0x000f0000) >> 16;
+	if (r1)
+		*r1 = (vcpu->arch.sie_block->ipb & 0x00f00000) >> 20;
+	if (r2)
+		*r2 = (vcpu->arch.sie_block->ipb & 0x000f0000) >> 16;
 }
 
 static inline u64 kvm_s390_get_base_disp_rsy(struct kvm_vcpu *vcpu)
-- 
cgit 


From 732e563373ffc57d38a8a3b6d55f2de865182117 Mon Sep 17 00:00:00 2001
From: Thomas Huth <thuth@linux.vnet.ibm.com>
Date: Thu, 12 Sep 2013 10:33:47 +0200
Subject: KVM: s390: Helper for converting real addresses to absolute

Added a separate helper function that translates guest real addresses
to guest absolute addresses by applying the prefix of the guest CPU.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/s390/kvm/gaccess.h | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/arch/s390/kvm/gaccess.h b/arch/s390/kvm/gaccess.h
index 99d789e8a018..374a439ccc60 100644
--- a/arch/s390/kvm/gaccess.h
+++ b/arch/s390/kvm/gaccess.h
@@ -18,20 +18,27 @@
 #include <asm/uaccess.h>
 #include "kvm-s390.h"
 
+/* Convert real to absolute address by applying the prefix of the CPU */
+static inline unsigned long kvm_s390_real_to_abs(struct kvm_vcpu *vcpu,
+						 unsigned long gaddr)
+{
+	unsigned long prefix  = vcpu->arch.sie_block->prefix;
+	if (gaddr < 2 * PAGE_SIZE)
+		gaddr += prefix;
+	else if (gaddr >= prefix && gaddr < prefix + 2 * PAGE_SIZE)
+		gaddr -= prefix;
+	return gaddr;
+}
+
 static inline void __user *__gptr_to_uptr(struct kvm_vcpu *vcpu,
 					  void __user *gptr,
 					  int prefixing)
 {
-	unsigned long prefix  = vcpu->arch.sie_block->prefix;
 	unsigned long gaddr = (unsigned long) gptr;
 	unsigned long uaddr;
 
-	if (prefixing) {
-		if (gaddr < 2 * PAGE_SIZE)
-			gaddr += prefix;
-		else if ((gaddr >= prefix) && (gaddr < prefix + 2 * PAGE_SIZE))
-			gaddr -= prefix;
-	}
+	if (prefixing)
+		gaddr = kvm_s390_real_to_abs(vcpu, gaddr);
 	uaddr = gmap_fault(gaddr, vcpu->arch.gmap);
 	if (IS_ERR_VALUE(uaddr))
 		uaddr = -EFAULT;
-- 
cgit 


From aca84241b576044de68da9ca7e5cfa9c9bf9867b Mon Sep 17 00:00:00 2001
From: Thomas Huth <thuth@linux.vnet.ibm.com>
Date: Thu, 12 Sep 2013 10:33:48 +0200
Subject: KVM: s390: Implement TEST BLOCK

This patch provides a simple version for the mandatory TEST BLOCK
instruction interception, so that guests that use this instruction
do not crash anymore.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/s390/kvm/priv.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index 59200ee275e5..6f9599416bae 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -128,6 +128,33 @@ static int handle_skey(struct kvm_vcpu *vcpu)
 	return 0;
 }
 
+static int handle_test_block(struct kvm_vcpu *vcpu)
+{
+	unsigned long hva;
+	gpa_t addr;
+	int reg2;
+
+	if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
+		return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
+
+	kvm_s390_get_regs_rre(vcpu, NULL, &reg2);
+	addr = vcpu->run->s.regs.gprs[reg2] & PAGE_MASK;
+	addr = kvm_s390_real_to_abs(vcpu, addr);
+
+	hva = gfn_to_hva(vcpu->kvm, gpa_to_gfn(addr));
+	if (kvm_is_error_hva(hva))
+		return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
+	/*
+	 * We don't expect errors on modern systems, and do not care
+	 * about storage keys (yet), so let's just clear the page.
+	 */
+	if (clear_user((void __user *)hva, PAGE_SIZE) != 0)
+		return -EFAULT;
+	kvm_s390_set_psw_cc(vcpu, 0);
+	vcpu->run->s.regs.gprs[0] = 0;
+	return 0;
+}
+
 static int handle_tpi(struct kvm_vcpu *vcpu)
 {
 	struct kvm_s390_interrupt_info *inti;
@@ -444,6 +471,7 @@ static const intercept_handler_t b2_handlers[256] = {
 	[0x29] = handle_skey,
 	[0x2a] = handle_skey,
 	[0x2b] = handle_skey,
+	[0x2c] = handle_test_block,
 	[0x30] = handle_io_inst,
 	[0x31] = handle_io_inst,
 	[0x32] = handle_io_inst,
-- 
cgit 


From 6a3f95a6b04cd5efaa45269e453ef30b8680062e Mon Sep 17 00:00:00 2001
From: Thomas Huth <thuth@linux.vnet.ibm.com>
Date: Thu, 12 Sep 2013 10:33:49 +0200
Subject: KVM: s390: Intercept SCK instruction

Interception of the SET CLOCK instruction is mandatory, so this patch
provides a simple handler for this instruction (by setting up the
"epoch" field in the sie_block).

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/s390/kvm/priv.c | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c
index 6f9599416bae..2440602e6df1 100644
--- a/arch/s390/kvm/priv.c
+++ b/arch/s390/kvm/priv.c
@@ -30,6 +30,38 @@
 #include "kvm-s390.h"
 #include "trace.h"
 
+/* Handle SCK (SET CLOCK) interception */
+static int handle_set_clock(struct kvm_vcpu *vcpu)
+{
+	struct kvm_vcpu *cpup;
+	s64 hostclk, val;
+	u64 op2;
+	int i;
+
+	if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
+		return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
+
+	op2 = kvm_s390_get_base_disp_s(vcpu);
+	if (op2 & 7)	/* Operand must be on a doubleword boundary */
+		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
+	if (get_guest(vcpu, val, (u64 __user *) op2))
+		return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
+
+	if (store_tod_clock(&hostclk)) {
+		kvm_s390_set_psw_cc(vcpu, 3);
+		return 0;
+	}
+	val = (val - hostclk) & ~0x3fUL;
+
+	mutex_lock(&vcpu->kvm->lock);
+	kvm_for_each_vcpu(i, cpup, vcpu->kvm)
+		cpup->arch.sie_block->epoch = val;
+	mutex_unlock(&vcpu->kvm->lock);
+
+	kvm_s390_set_psw_cc(vcpu, 0);
+	return 0;
+}
+
 static int handle_set_prefix(struct kvm_vcpu *vcpu)
 {
 	u64 operand2;
@@ -465,6 +497,7 @@ out_exception:
 
 static const intercept_handler_t b2_handlers[256] = {
 	[0x02] = handle_stidp,
+	[0x04] = handle_set_clock,
 	[0x10] = handle_set_prefix,
 	[0x11] = handle_store_prefix,
 	[0x12] = handle_store_cpu_address,
-- 
cgit 


From f1c66c4678ad223bda0dcd261e4048f009234f85 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Tue, 24 Sep 2013 12:08:06 -0600
Subject: PCI: Export pcie_set_mps() and pcie_get_mps()

Export pcie_get_mps() and pcie_set_mps() functions so drivers can use
them to simplify code.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/pci.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index e8ccf6c0f08a..8c812464f259 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -3972,6 +3972,7 @@ int pcie_get_mps(struct pci_dev *dev)
 
 	return 128 << ((ctl & PCI_EXP_DEVCTL_PAYLOAD) >> 5);
 }
+EXPORT_SYMBOL(pcie_get_mps);
 
 /**
  * pcie_set_mps - set PCI Express maximum payload size
@@ -3996,6 +3997,7 @@ int pcie_set_mps(struct pci_dev *dev, int mps)
 	return pcie_capability_clear_and_set_word(dev, PCI_EXP_DEVCTL,
 						  PCI_EXP_DEVCTL_PAYLOAD, v);
 }
+EXPORT_SYMBOL(pcie_set_mps);
 
 /**
  * pcie_get_minimum_link - determine minimum link settings of a PCI device
-- 
cgit 


From 503275bf371fbab01a14f2e9fd1ac7aa20c81645 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Mon, 9 Sep 2013 21:13:04 +0800
Subject: tile/PCI: use cached pci_dev->pcie_mpss to simplify code

The PCI core caches the "PCIe Max Payload Size Supported" in
pci_dev->pcie_mpss, so use that instead of pcie_capability_read_dword().

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 arch/tile/kernel/pci.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c
index b7180e6e900d..c45593db7718 100644
--- a/arch/tile/kernel/pci.c
+++ b/arch/tile/kernel/pci.c
@@ -251,15 +251,12 @@ static void fixup_read_and_payload_sizes(void)
 	/* Scan for the smallest maximum payload size. */
 	for_each_pci_dev(dev) {
 		u32 devcap;
-		int max_payload;
 
 		if (!pci_is_pcie(dev))
 			continue;
 
-		pcie_capability_read_dword(dev, PCI_EXP_DEVCAP, &devcap);
-		max_payload = devcap & PCI_EXP_DEVCAP_PAYLOAD;
-		if (max_payload < smallest_max_payload)
-			smallest_max_payload = max_payload;
+		if (dev->pcie_mpss < smallest_max_payload)
+			smallest_max_payload = dev->pcie_mpss;
 	}
 
 	/* Now, set the max_payload_size for all devices to that value. */
-- 
cgit 


From dcaa73dc3411c4d771d1d6a950c6b8a9c71da089 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Mon, 9 Sep 2013 21:13:05 +0800
Subject: IB/qib: Use pci_is_root_bus() to check whether it is a root bus

Use pci_is_root_bus() instead of "if (bus->parent)" statement
for better readability.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
---
 drivers/infiniband/hw/qib/qib_pcie.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/qib/qib_pcie.c b/drivers/infiniband/hw/qib/qib_pcie.c
index 3f14009fb662..45e55ff33dbf 100644
--- a/drivers/infiniband/hw/qib/qib_pcie.c
+++ b/drivers/infiniband/hw/qib/qib_pcie.c
@@ -590,7 +590,7 @@ static int qib_tune_pcie_caps(struct qib_devdata *dd)
 
 	/* Find out supported and configured values for parent (root) */
 	parent = dd->pcidev->bus->self;
-	if (parent->bus->parent) {
+	if (!pci_is_root_bus(parent->bus)) {
 		qib_devinfo(dd->pcidev, "Parent not root\n");
 		goto bail;
 	}
-- 
cgit 


From d36126ac5674a83e1d426877709437b24f058f47 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 23 Sep 2013 18:58:59 +0100
Subject: ASoC: max98095: Remove custom hw_write() implementation

The registers that are being kept uncached are marked as volatile anyway
so the call has no practical impact.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/max98095.c | 25 ++++---------------------
 1 file changed, 4 insertions(+), 21 deletions(-)

diff --git a/sound/soc/codecs/max98095.c b/sound/soc/codecs/max98095.c
index 41cdd1642970..65aba5ec52df 100644
--- a/sound/soc/codecs/max98095.c
+++ b/sound/soc/codecs/max98095.c
@@ -611,23 +611,6 @@ static int max98095_volatile(struct snd_soc_codec *codec, unsigned int reg)
 	return 0;
 }
 
-/*
- * Filter coefficients are in a separate register segment
- * and they share the address space of the normal registers.
- * The coefficient registers do not need or share the cache.
- */
-static int max98095_hw_write(struct snd_soc_codec *codec, unsigned int reg,
-			     unsigned int value)
-{
-	int ret;
-
-	codec->cache_bypass = 1;
-	ret = snd_soc_write(codec, reg, value);
-	codec->cache_bypass = 0;
-
-	return ret ? -EIO : 0;
-}
-
 /*
  * Load equalizer DSP coefficient configurations registers
  */
@@ -648,8 +631,8 @@ static void m98095_eq_band(struct snd_soc_codec *codec, unsigned int dai,
 
 	/* Step through the registers and coefs */
 	for (i = 0; i < M98095_COEFS_PER_BAND; i++) {
-		max98095_hw_write(codec, eq_reg++, M98095_BYTE1(coefs[i]));
-		max98095_hw_write(codec, eq_reg++, M98095_BYTE0(coefs[i]));
+		snd_soc_write(codec, eq_reg++, M98095_BYTE1(coefs[i]));
+		snd_soc_write(codec, eq_reg++, M98095_BYTE0(coefs[i]));
 	}
 }
 
@@ -673,8 +656,8 @@ static void m98095_biquad_band(struct snd_soc_codec *codec, unsigned int dai,
 
 	/* Step through the registers and coefs */
 	for (i = 0; i < M98095_COEFS_PER_BAND; i++) {
-		max98095_hw_write(codec, bq_reg++, M98095_BYTE1(coefs[i]));
-		max98095_hw_write(codec, bq_reg++, M98095_BYTE0(coefs[i]));
+		snd_soc_write(codec, bq_reg++, M98095_BYTE1(coefs[i]));
+		snd_soc_write(codec, bq_reg++, M98095_BYTE0(coefs[i]));
 	}
 }
 
-- 
cgit 


From c6b3283f6d8818177349eb7cc0549286a55140c7 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 23 Sep 2013 19:05:16 +0100
Subject: ASoC: max90895: Convert to table based control init

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/max98095.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/sound/soc/codecs/max98095.c b/sound/soc/codecs/max98095.c
index 65aba5ec52df..1a4585ae36e4 100644
--- a/sound/soc/codecs/max98095.c
+++ b/sound/soc/codecs/max98095.c
@@ -1268,14 +1268,6 @@ static const struct snd_soc_dapm_route max98095_audio_map[] = {
 	{"MIC2 Input", NULL, "MIC2"},
 };
 
-static int max98095_add_widgets(struct snd_soc_codec *codec)
-{
-	snd_soc_add_codec_controls(codec, max98095_snd_controls,
-			     ARRAY_SIZE(max98095_snd_controls));
-
-	return 0;
-}
-
 /* codec mclk clock divider coefficients */
 static const struct {
 	u32 rate;
@@ -2430,8 +2422,6 @@ static int max98095_probe(struct snd_soc_codec *codec)
 	snd_soc_update_bits(codec, M98095_097_PWR_SYS, M98095_SHDNRUN,
 		M98095_SHDNRUN);
 
-	max98095_add_widgets(codec);
-
 	return 0;
 
 err_irq:
@@ -2463,6 +2453,8 @@ static struct snd_soc_codec_driver soc_codec_dev_max98095 = {
 	.suspend = max98095_suspend,
 	.resume  = max98095_resume,
 	.set_bias_level = max98095_set_bias_level,
+	.controls = max98095_snd_controls,
+	.num_controls = ARRAY_SIZE(max98095_snd_controls),
 	.reg_cache_size = ARRAY_SIZE(max98095_reg_def),
 	.reg_word_size = sizeof(u8),
 	.reg_cache_default = max98095_reg_def,
-- 
cgit 


From 14acbbbbc649c4c6057f601396b8000cd616d9ad Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 23 Sep 2013 19:08:35 +0100
Subject: ASoC: max98095: Convert to direct regmap API usage

Saves code and moves us towards being able to remove the duplicate ASoC
level register I/O functionality.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/max98095.c | 435 +++++++++++++++++---------------------------
 1 file changed, 167 insertions(+), 268 deletions(-)

diff --git a/sound/soc/codecs/max98095.c b/sound/soc/codecs/max98095.c
index 1a4585ae36e4..5c9f6b527cf0 100644
--- a/sound/soc/codecs/max98095.c
+++ b/sound/soc/codecs/max98095.c
@@ -39,6 +39,7 @@ struct max98095_cdata {
 };
 
 struct max98095_priv {
+	struct regmap *regmap;
 	enum max98095_type devtype;
 	struct max98095_pdata *pdata;
 	unsigned int sysclk;
@@ -56,263 +57,145 @@ struct max98095_priv {
 	struct snd_soc_jack *mic_jack;
 };
 
-static const u8 max98095_reg_def[M98095_REG_CNT] = {
-	0x00, /* 00 */
-	0x00, /* 01 */
-	0x00, /* 02 */
-	0x00, /* 03 */
-	0x00, /* 04 */
-	0x00, /* 05 */
-	0x00, /* 06 */
-	0x00, /* 07 */
-	0x00, /* 08 */
-	0x00, /* 09 */
-	0x00, /* 0A */
-	0x00, /* 0B */
-	0x00, /* 0C */
-	0x00, /* 0D */
-	0x00, /* 0E */
-	0x00, /* 0F */
-	0x00, /* 10 */
-	0x00, /* 11 */
-	0x00, /* 12 */
-	0x00, /* 13 */
-	0x00, /* 14 */
-	0x00, /* 15 */
-	0x00, /* 16 */
-	0x00, /* 17 */
-	0x00, /* 18 */
-	0x00, /* 19 */
-	0x00, /* 1A */
-	0x00, /* 1B */
-	0x00, /* 1C */
-	0x00, /* 1D */
-	0x00, /* 1E */
-	0x00, /* 1F */
-	0x00, /* 20 */
-	0x00, /* 21 */
-	0x00, /* 22 */
-	0x00, /* 23 */
-	0x00, /* 24 */
-	0x00, /* 25 */
-	0x00, /* 26 */
-	0x00, /* 27 */
-	0x00, /* 28 */
-	0x00, /* 29 */
-	0x00, /* 2A */
-	0x00, /* 2B */
-	0x00, /* 2C */
-	0x00, /* 2D */
-	0x00, /* 2E */
-	0x00, /* 2F */
-	0x00, /* 30 */
-	0x00, /* 31 */
-	0x00, /* 32 */
-	0x00, /* 33 */
-	0x00, /* 34 */
-	0x00, /* 35 */
-	0x00, /* 36 */
-	0x00, /* 37 */
-	0x00, /* 38 */
-	0x00, /* 39 */
-	0x00, /* 3A */
-	0x00, /* 3B */
-	0x00, /* 3C */
-	0x00, /* 3D */
-	0x00, /* 3E */
-	0x00, /* 3F */
-	0x00, /* 40 */
-	0x00, /* 41 */
-	0x00, /* 42 */
-	0x00, /* 43 */
-	0x00, /* 44 */
-	0x00, /* 45 */
-	0x00, /* 46 */
-	0x00, /* 47 */
-	0x00, /* 48 */
-	0x00, /* 49 */
-	0x00, /* 4A */
-	0x00, /* 4B */
-	0x00, /* 4C */
-	0x00, /* 4D */
-	0x00, /* 4E */
-	0x00, /* 4F */
-	0x00, /* 50 */
-	0x00, /* 51 */
-	0x00, /* 52 */
-	0x00, /* 53 */
-	0x00, /* 54 */
-	0x00, /* 55 */
-	0x00, /* 56 */
-	0x00, /* 57 */
-	0x00, /* 58 */
-	0x00, /* 59 */
-	0x00, /* 5A */
-	0x00, /* 5B */
-	0x00, /* 5C */
-	0x00, /* 5D */
-	0x00, /* 5E */
-	0x00, /* 5F */
-	0x00, /* 60 */
-	0x00, /* 61 */
-	0x00, /* 62 */
-	0x00, /* 63 */
-	0x00, /* 64 */
-	0x00, /* 65 */
-	0x00, /* 66 */
-	0x00, /* 67 */
-	0x00, /* 68 */
-	0x00, /* 69 */
-	0x00, /* 6A */
-	0x00, /* 6B */
-	0x00, /* 6C */
-	0x00, /* 6D */
-	0x00, /* 6E */
-	0x00, /* 6F */
-	0x00, /* 70 */
-	0x00, /* 71 */
-	0x00, /* 72 */
-	0x00, /* 73 */
-	0x00, /* 74 */
-	0x00, /* 75 */
-	0x00, /* 76 */
-	0x00, /* 77 */
-	0x00, /* 78 */
-	0x00, /* 79 */
-	0x00, /* 7A */
-	0x00, /* 7B */
-	0x00, /* 7C */
-	0x00, /* 7D */
-	0x00, /* 7E */
-	0x00, /* 7F */
-	0x00, /* 80 */
-	0x00, /* 81 */
-	0x00, /* 82 */
-	0x00, /* 83 */
-	0x00, /* 84 */
-	0x00, /* 85 */
-	0x00, /* 86 */
-	0x00, /* 87 */
-	0x00, /* 88 */
-	0x00, /* 89 */
-	0x00, /* 8A */
-	0x00, /* 8B */
-	0x00, /* 8C */
-	0x00, /* 8D */
-	0x00, /* 8E */
-	0x00, /* 8F */
-	0x00, /* 90 */
-	0x00, /* 91 */
-	0x30, /* 92 */
-	0xF0, /* 93 */
-	0x00, /* 94 */
-	0x00, /* 95 */
-	0x3F, /* 96 */
-	0x00, /* 97 */
-	0x00, /* 98 */
-	0x00, /* 99 */
-	0x00, /* 9A */
-	0x00, /* 9B */
-	0x00, /* 9C */
-	0x00, /* 9D */
-	0x00, /* 9E */
-	0x00, /* 9F */
-	0x00, /* A0 */
-	0x00, /* A1 */
-	0x00, /* A2 */
-	0x00, /* A3 */
-	0x00, /* A4 */
-	0x00, /* A5 */
-	0x00, /* A6 */
-	0x00, /* A7 */
-	0x00, /* A8 */
-	0x00, /* A9 */
-	0x00, /* AA */
-	0x00, /* AB */
-	0x00, /* AC */
-	0x00, /* AD */
-	0x00, /* AE */
-	0x00, /* AF */
-	0x00, /* B0 */
-	0x00, /* B1 */
-	0x00, /* B2 */
-	0x00, /* B3 */
-	0x00, /* B4 */
-	0x00, /* B5 */
-	0x00, /* B6 */
-	0x00, /* B7 */
-	0x00, /* B8 */
-	0x00, /* B9 */
-	0x00, /* BA */
-	0x00, /* BB */
-	0x00, /* BC */
-	0x00, /* BD */
-	0x00, /* BE */
-	0x00, /* BF */
-	0x00, /* C0 */
-	0x00, /* C1 */
-	0x00, /* C2 */
-	0x00, /* C3 */
-	0x00, /* C4 */
-	0x00, /* C5 */
-	0x00, /* C6 */
-	0x00, /* C7 */
-	0x00, /* C8 */
-	0x00, /* C9 */
-	0x00, /* CA */
-	0x00, /* CB */
-	0x00, /* CC */
-	0x00, /* CD */
-	0x00, /* CE */
-	0x00, /* CF */
-	0x00, /* D0 */
-	0x00, /* D1 */
-	0x00, /* D2 */
-	0x00, /* D3 */
-	0x00, /* D4 */
-	0x00, /* D5 */
-	0x00, /* D6 */
-	0x00, /* D7 */
-	0x00, /* D8 */
-	0x00, /* D9 */
-	0x00, /* DA */
-	0x00, /* DB */
-	0x00, /* DC */
-	0x00, /* DD */
-	0x00, /* DE */
-	0x00, /* DF */
-	0x00, /* E0 */
-	0x00, /* E1 */
-	0x00, /* E2 */
-	0x00, /* E3 */
-	0x00, /* E4 */
-	0x00, /* E5 */
-	0x00, /* E6 */
-	0x00, /* E7 */
-	0x00, /* E8 */
-	0x00, /* E9 */
-	0x00, /* EA */
-	0x00, /* EB */
-	0x00, /* EC */
-	0x00, /* ED */
-	0x00, /* EE */
-	0x00, /* EF */
-	0x00, /* F0 */
-	0x00, /* F1 */
-	0x00, /* F2 */
-	0x00, /* F3 */
-	0x00, /* F4 */
-	0x00, /* F5 */
-	0x00, /* F6 */
-	0x00, /* F7 */
-	0x00, /* F8 */
-	0x00, /* F9 */
-	0x00, /* FA */
-	0x00, /* FB */
-	0x00, /* FC */
-	0x00, /* FD */
-	0x00, /* FE */
-	0x00, /* FF */
+static const struct reg_default max98095_reg_def[] = {
+	{  0xf, 0x00 }, /* 0F */
+	{ 0x10, 0x00 }, /* 10 */
+	{ 0x11, 0x00 }, /* 11 */
+	{ 0x12, 0x00 }, /* 12 */
+	{ 0x13, 0x00 }, /* 13 */
+	{ 0x14, 0x00 }, /* 14 */
+	{ 0x15, 0x00 }, /* 15 */
+	{ 0x16, 0x00 }, /* 16 */
+	{ 0x17, 0x00 }, /* 17 */
+	{ 0x18, 0x00 }, /* 18 */
+	{ 0x19, 0x00 }, /* 19 */
+	{ 0x1a, 0x00 }, /* 1A */
+	{ 0x1b, 0x00 }, /* 1B */
+	{ 0x1c, 0x00 }, /* 1C */
+	{ 0x1d, 0x00 }, /* 1D */
+	{ 0x1e, 0x00 }, /* 1E */
+	{ 0x1f, 0x00 }, /* 1F */
+	{ 0x20, 0x00 }, /* 20 */
+	{ 0x21, 0x00 }, /* 21 */
+	{ 0x22, 0x00 }, /* 22 */
+	{ 0x23, 0x00 }, /* 23 */
+	{ 0x24, 0x00 }, /* 24 */
+	{ 0x25, 0x00 }, /* 25 */
+	{ 0x26, 0x00 }, /* 26 */
+	{ 0x27, 0x00 }, /* 27 */
+	{ 0x28, 0x00 }, /* 28 */
+	{ 0x29, 0x00 }, /* 29 */
+	{ 0x2a, 0x00 }, /* 2A */
+	{ 0x2b, 0x00 }, /* 2B */
+	{ 0x2c, 0x00 }, /* 2C */
+	{ 0x2d, 0x00 }, /* 2D */
+	{ 0x2e, 0x00 }, /* 2E */
+	{ 0x2f, 0x00 }, /* 2F */
+	{ 0x30, 0x00 }, /* 30 */
+	{ 0x31, 0x00 }, /* 31 */
+	{ 0x32, 0x00 }, /* 32 */
+	{ 0x33, 0x00 }, /* 33 */
+	{ 0x34, 0x00 }, /* 34 */
+	{ 0x35, 0x00 }, /* 35 */
+	{ 0x36, 0x00 }, /* 36 */
+	{ 0x37, 0x00 }, /* 37 */
+	{ 0x38, 0x00 }, /* 38 */
+	{ 0x39, 0x00 }, /* 39 */
+	{ 0x3a, 0x00 }, /* 3A */
+	{ 0x3b, 0x00 }, /* 3B */
+	{ 0x3c, 0x00 }, /* 3C */
+	{ 0x3d, 0x00 }, /* 3D */
+	{ 0x3e, 0x00 }, /* 3E */
+	{ 0x3f, 0x00 }, /* 3F */
+	{ 0x40, 0x00 }, /* 40 */
+	{ 0x41, 0x00 }, /* 41 */
+	{ 0x42, 0x00 }, /* 42 */
+	{ 0x43, 0x00 }, /* 43 */
+	{ 0x44, 0x00 }, /* 44 */
+	{ 0x45, 0x00 }, /* 45 */
+	{ 0x46, 0x00 }, /* 46 */
+	{ 0x47, 0x00 }, /* 47 */
+	{ 0x48, 0x00 }, /* 48 */
+	{ 0x49, 0x00 }, /* 49 */
+	{ 0x4a, 0x00 }, /* 4A */
+	{ 0x4b, 0x00 }, /* 4B */
+	{ 0x4c, 0x00 }, /* 4C */
+	{ 0x4d, 0x00 }, /* 4D */
+	{ 0x4e, 0x00 }, /* 4E */
+	{ 0x4f, 0x00 }, /* 4F */
+	{ 0x50, 0x00 }, /* 50 */
+	{ 0x51, 0x00 }, /* 51 */
+	{ 0x52, 0x00 }, /* 52 */
+	{ 0x53, 0x00 }, /* 53 */
+	{ 0x54, 0x00 }, /* 54 */
+	{ 0x55, 0x00 }, /* 55 */
+	{ 0x56, 0x00 }, /* 56 */
+	{ 0x57, 0x00 }, /* 57 */
+	{ 0x58, 0x00 }, /* 58 */
+	{ 0x59, 0x00 }, /* 59 */
+	{ 0x5a, 0x00 }, /* 5A */
+	{ 0x5b, 0x00 }, /* 5B */
+	{ 0x5c, 0x00 }, /* 5C */
+	{ 0x5d, 0x00 }, /* 5D */
+	{ 0x5e, 0x00 }, /* 5E */
+	{ 0x5f, 0x00 }, /* 5F */
+	{ 0x60, 0x00 }, /* 60 */
+	{ 0x61, 0x00 }, /* 61 */
+	{ 0x62, 0x00 }, /* 62 */
+	{ 0x63, 0x00 }, /* 63 */
+	{ 0x64, 0x00 }, /* 64 */
+	{ 0x65, 0x00 }, /* 65 */
+	{ 0x66, 0x00 }, /* 66 */
+	{ 0x67, 0x00 }, /* 67 */
+	{ 0x68, 0x00 }, /* 68 */
+	{ 0x69, 0x00 }, /* 69 */
+	{ 0x6a, 0x00 }, /* 6A */
+	{ 0x6b, 0x00 }, /* 6B */
+	{ 0x6c, 0x00 }, /* 6C */
+	{ 0x6d, 0x00 }, /* 6D */
+	{ 0x6e, 0x00 }, /* 6E */
+	{ 0x6f, 0x00 }, /* 6F */
+	{ 0x70, 0x00 }, /* 70 */
+	{ 0x71, 0x00 }, /* 71 */
+	{ 0x72, 0x00 }, /* 72 */
+	{ 0x73, 0x00 }, /* 73 */
+	{ 0x74, 0x00 }, /* 74 */
+	{ 0x75, 0x00 }, /* 75 */
+	{ 0x76, 0x00 }, /* 76 */
+	{ 0x77, 0x00 }, /* 77 */
+	{ 0x78, 0x00 }, /* 78 */
+	{ 0x79, 0x00 }, /* 79 */
+	{ 0x7a, 0x00 }, /* 7A */
+	{ 0x7b, 0x00 }, /* 7B */
+	{ 0x7c, 0x00 }, /* 7C */
+	{ 0x7d, 0x00 }, /* 7D */
+	{ 0x7e, 0x00 }, /* 7E */
+	{ 0x7f, 0x00 }, /* 7F */
+	{ 0x80, 0x00 }, /* 80 */
+	{ 0x81, 0x00 }, /* 81 */
+	{ 0x82, 0x00 }, /* 82 */
+	{ 0x83, 0x00 }, /* 83 */
+	{ 0x84, 0x00 }, /* 84 */
+	{ 0x85, 0x00 }, /* 85 */
+	{ 0x86, 0x00 }, /* 86 */
+	{ 0x87, 0x00 }, /* 87 */
+	{ 0x88, 0x00 }, /* 88 */
+	{ 0x89, 0x00 }, /* 89 */
+	{ 0x8a, 0x00 }, /* 8A */
+	{ 0x8b, 0x00 }, /* 8B */
+	{ 0x8c, 0x00 }, /* 8C */
+	{ 0x8d, 0x00 }, /* 8D */
+	{ 0x8e, 0x00 }, /* 8E */
+	{ 0x8f, 0x00 }, /* 8F */
+	{ 0x90, 0x00 }, /* 90 */
+	{ 0x91, 0x00 }, /* 91 */
+	{ 0x92, 0x30 }, /* 92 */
+	{ 0x93, 0xF0 }, /* 93 */
+	{ 0x94, 0x00 }, /* 94 */
+	{ 0x95, 0x00 }, /* 95 */
+	{ 0x96, 0x3F }, /* 96 */
+	{ 0x97, 0x00 }, /* 97 */
+	{ 0xff, 0x00 }, /* FF */
 };
 
 static struct {
@@ -577,14 +460,14 @@ static struct {
 	{ 0xFF, 0x00 }, /* FF */
 };
 
-static int max98095_readable(struct snd_soc_codec *codec, unsigned int reg)
+static bool max98095_readable(struct device *dev, unsigned int reg)
 {
 	if (reg >= M98095_REG_CNT)
 		return 0;
 	return max98095_access[reg].readable != 0;
 }
 
-static int max98095_volatile(struct snd_soc_codec *codec, unsigned int reg)
+static bool max98095_volatile(struct device *dev, unsigned int reg)
 {
 	if (reg > M98095_REG_MAX_CACHED)
 		return 1;
@@ -611,6 +494,19 @@ static int max98095_volatile(struct snd_soc_codec *codec, unsigned int reg)
 	return 0;
 }
 
+static const struct regmap_config max98095_regmap = {
+	.reg_bits = 8,
+	.val_bits = 8,
+
+	.reg_defaults = max98095_reg_def,
+	.num_reg_defaults = ARRAY_SIZE(max98095_reg_def),
+	.max_register = M98095_0FF_REV_ID,
+	.cache_type = REGCACHE_RBTREE,
+
+	.readable_reg = max98095_readable,
+	.volatile_reg = max98095_volatile,
+};
+
 /*
  * Load equalizer DSP coefficient configurations registers
  */
@@ -1723,6 +1619,7 @@ static int max98095_dai3_set_fmt(struct snd_soc_dai *codec_dai,
 static int max98095_set_bias_level(struct snd_soc_codec *codec,
 				   enum snd_soc_bias_level level)
 {
+	struct max98095_priv *max98095 = snd_soc_codec_get_drvdata(codec);
 	int ret;
 
 	switch (level) {
@@ -1734,7 +1631,7 @@ static int max98095_set_bias_level(struct snd_soc_codec *codec,
 
 	case SND_SOC_BIAS_STANDBY:
 		if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
-			ret = snd_soc_cache_sync(codec);
+			ret = regcache_sync(max98095->regmap);
 
 			if (ret != 0) {
 				dev_err(codec->dev, "Failed to sync cache: %d\n", ret);
@@ -1749,7 +1646,7 @@ static int max98095_set_bias_level(struct snd_soc_codec *codec,
 	case SND_SOC_BIAS_OFF:
 		snd_soc_update_bits(codec, M98095_090_PWR_EN_IN,
 				M98095_MBEN, 0);
-		codec->cache_sync = 1;
+		regcache_mark_dirty(max98095->regmap);
 		break;
 	}
 	codec->dapm.bias_level = level;
@@ -2316,7 +2213,7 @@ static int max98095_reset(struct snd_soc_codec *codec)
 	/* Reset to hardware default for registers, as there is not
 	 * a soft reset hardware control register */
 	for (i = M98095_010_HOST_INT_CFG; i < M98095_REG_MAX_CACHED; i++) {
-		ret = snd_soc_write(codec, i, max98095_reg_def[i]);
+		ret = snd_soc_write(codec, i, snd_soc_read(codec, i));
 		if (ret < 0) {
 			dev_err(codec->dev, "Failed to reset: %d\n", ret);
 			return ret;
@@ -2333,7 +2230,7 @@ static int max98095_probe(struct snd_soc_codec *codec)
 	struct i2c_client *client;
 	int ret = 0;
 
-	ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_I2C);
+	ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_REGMAP);
 	if (ret != 0) {
 		dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
 		return ret;
@@ -2455,11 +2352,6 @@ static struct snd_soc_codec_driver soc_codec_dev_max98095 = {
 	.set_bias_level = max98095_set_bias_level,
 	.controls = max98095_snd_controls,
 	.num_controls = ARRAY_SIZE(max98095_snd_controls),
-	.reg_cache_size = ARRAY_SIZE(max98095_reg_def),
-	.reg_word_size = sizeof(u8),
-	.reg_cache_default = max98095_reg_def,
-	.readable_register = max98095_readable,
-	.volatile_register = max98095_volatile,
 	.dapm_widgets	  = max98095_dapm_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(max98095_dapm_widgets),
 	.dapm_routes     = max98095_audio_map,
@@ -2477,6 +2369,13 @@ static int max98095_i2c_probe(struct i2c_client *i2c,
 	if (max98095 == NULL)
 		return -ENOMEM;
 
+	max98095->regmap = devm_regmap_init_i2c(i2c, &max98095_regmap);
+	if (IS_ERR(max98095->regmap)) {
+		ret = PTR_ERR(max98095->regmap);
+		dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);
+		return ret;
+	}
+
 	max98095->devtype = id->driver_data;
 	i2c_set_clientdata(i2c, max98095);
 	max98095->pdata = i2c->dev.platform_data;
-- 
cgit 


From 2c142c61f79c14a120c0f4d2954e35b6404b2d0d Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Tue, 24 Sep 2013 18:49:54 +0100
Subject: ASoC: tlv320aic23: Remove #defines for I2C

The only control interface supported by this driver is I2C so there is no
need for conditional compilation around the control interface.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/tlv320aic23.c | 25 +------------------------
 1 file changed, 1 insertion(+), 24 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic23.c b/sound/soc/codecs/tlv320aic23.c
index 31762ebdd774..32994597a43f 100644
--- a/sound/soc/codecs/tlv320aic23.c
+++ b/sound/soc/codecs/tlv320aic23.c
@@ -613,7 +613,6 @@ static struct snd_soc_codec_driver soc_codec_dev_tlv320aic23 = {
 	.num_dapm_routes = ARRAY_SIZE(tlv320aic23_intercon),
 };
 
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
 /*
  * If the i2c layer weren't so broken, we could pass this kind of data
  * around
@@ -660,29 +659,7 @@ static struct i2c_driver tlv320aic23_i2c_driver = {
 	.id_table = tlv320aic23_id,
 };
 
-#endif
-
-static int __init tlv320aic23_modinit(void)
-{
-	int ret;
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-	ret = i2c_add_driver(&tlv320aic23_i2c_driver);
-	if (ret != 0) {
-		printk(KERN_ERR "Failed to register TLV320AIC23 I2C driver: %d\n",
-		       ret);
-	}
-#endif
-	return ret;
-}
-module_init(tlv320aic23_modinit);
-
-static void __exit tlv320aic23_exit(void)
-{
-#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
-	i2c_del_driver(&tlv320aic23_i2c_driver);
-#endif
-}
-module_exit(tlv320aic23_exit);
+module_i2c_driver(tlv320aic23_i2c_driver);
 
 MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver");
 MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
-- 
cgit 


From b07c443fabb97f909c8cc406bfd2d0ecc002bc3b Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Tue, 24 Sep 2013 18:51:26 +0100
Subject: ASoC: tlv320aic23: Convert to table based control init

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/tlv320aic23.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic23.c b/sound/soc/codecs/tlv320aic23.c
index 32994597a43f..3a6be8c3d557 100644
--- a/sound/soc/codecs/tlv320aic23.c
+++ b/sound/soc/codecs/tlv320aic23.c
@@ -586,9 +586,6 @@ static int tlv320aic23_probe(struct snd_soc_codec *codec)
 
 	snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x1);
 
-	snd_soc_add_codec_controls(codec, tlv320aic23_snd_controls,
-				ARRAY_SIZE(tlv320aic23_snd_controls));
-
 	return 0;
 }
 
@@ -607,6 +604,8 @@ static struct snd_soc_codec_driver soc_codec_dev_tlv320aic23 = {
 	.suspend = tlv320aic23_suspend,
 	.resume = tlv320aic23_resume,
 	.set_bias_level = tlv320aic23_set_bias_level,
+	.controls = tlv320aic23_snd_controls,
+	.num_controls = ARRAY_SIZE(tlv320aic23_snd_controls),
 	.dapm_widgets = tlv320aic23_dapm_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(tlv320aic23_dapm_widgets),
 	.dapm_routes = tlv320aic23_intercon,
-- 
cgit 


From a16bbe4d685c1465b98d3fabdb95310eafcd383e Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 23 Sep 2013 20:07:12 +0100
Subject: ASoC: tlv320aic3x: Remove nonsense comment for register cache

Every statement in this comment is incorrect either through bitrot or
(mostly) through never having corresponded to reality in the first place.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/tlv320aic3x.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index 6e3f269243e0..3abbff3fe888 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -90,12 +90,6 @@ struct aic3x_priv {
 	enum aic3x_micbias_voltage micbias_vg;
 };
 
-/*
- * AIC3X register cache
- * We can't read the AIC3X register space when we are
- * using 2 wire for device control, so we cache them instead.
- * There is no point in caching the reset register
- */
 static const u8 aic3x_reg[AIC3X_CACHEREGNUM] = {
 	0x00, 0x00, 0x00, 0x10,	/* 0 */
 	0x04, 0x00, 0x00, 0x00,	/* 4 */
-- 
cgit 


From 6f818e04fc8d3d413eeb3a689c7607f2a89ab568 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 23 Sep 2013 19:48:45 +0100
Subject: ASoC: tlv320aic3x: Move resource acquisition to I2C probe

This is more idiomatic and interacts better with deferred probing.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/tlv320aic3x.c | 63 ++++++++++++++++++++++--------------------
 1 file changed, 33 insertions(+), 30 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index 3abbff3fe888..de17a36beb6f 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -1345,23 +1345,6 @@ static int aic3x_probe(struct snd_soc_codec *codec)
 		return ret;
 	}
 
-	if (gpio_is_valid(aic3x->gpio_reset) &&
-	    !aic3x_is_shared_reset(aic3x)) {
-		ret = gpio_request(aic3x->gpio_reset, "tlv320aic3x reset");
-		if (ret != 0)
-			goto err_gpio;
-		gpio_direction_output(aic3x->gpio_reset, 0);
-	}
-
-	for (i = 0; i < ARRAY_SIZE(aic3x->supplies); i++)
-		aic3x->supplies[i].supply = aic3x_supply_names[i];
-
-	ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(aic3x->supplies),
-				 aic3x->supplies);
-	if (ret != 0) {
-		dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
-		goto err_get;
-	}
 	for (i = 0; i < ARRAY_SIZE(aic3x->supplies); i++) {
 		aic3x->disable_nb[i].nb.notifier_call = aic3x_regulator_event;
 		aic3x->disable_nb[i].aic3x = aic3x;
@@ -1418,12 +1401,6 @@ err_notif:
 	while (i--)
 		regulator_unregister_notifier(aic3x->supplies[i].consumer,
 					      &aic3x->disable_nb[i].nb);
-	regulator_bulk_free(ARRAY_SIZE(aic3x->supplies), aic3x->supplies);
-err_get:
-	if (gpio_is_valid(aic3x->gpio_reset) &&
-	    !aic3x_is_shared_reset(aic3x))
-		gpio_free(aic3x->gpio_reset);
-err_gpio:
 	return ret;
 }
 
@@ -1434,15 +1411,9 @@ static int aic3x_remove(struct snd_soc_codec *codec)
 
 	aic3x_set_bias_level(codec, SND_SOC_BIAS_OFF);
 	list_del(&aic3x->list);
-	if (gpio_is_valid(aic3x->gpio_reset) &&
-	    !aic3x_is_shared_reset(aic3x)) {
-		gpio_set_value(aic3x->gpio_reset, 0);
-		gpio_free(aic3x->gpio_reset);
-	}
 	for (i = 0; i < ARRAY_SIZE(aic3x->supplies); i++)
 		regulator_unregister_notifier(aic3x->supplies[i].consumer,
 					      &aic3x->disable_nb[i].nb);
-	regulator_bulk_free(ARRAY_SIZE(aic3x->supplies), aic3x->supplies);
 
 	return 0;
 }
@@ -1484,7 +1455,7 @@ static int aic3x_i2c_probe(struct i2c_client *i2c,
 	struct aic3x_priv *aic3x;
 	struct aic3x_setup_data *ai3x_setup;
 	struct device_node *np = i2c->dev.of_node;
-	int ret;
+	int ret, i;
 	u32 value;
 
 	aic3x = devm_kzalloc(&i2c->dev, sizeof(struct aic3x_priv), GFP_KERNEL);
@@ -1545,14 +1516,46 @@ static int aic3x_i2c_probe(struct i2c_client *i2c,
 
 	aic3x->model = id->driver_data;
 
+	if (gpio_is_valid(aic3x->gpio_reset) &&
+	    !aic3x_is_shared_reset(aic3x)) {
+		ret = gpio_request(aic3x->gpio_reset, "tlv320aic3x reset");
+		if (ret != 0)
+			goto err;
+		gpio_direction_output(aic3x->gpio_reset, 0);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(aic3x->supplies); i++)
+		aic3x->supplies[i].supply = aic3x_supply_names[i];
+
+	ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(aic3x->supplies),
+				      aic3x->supplies);
+	if (ret != 0) {
+		dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
+		goto err_gpio;
+	}
+
 	ret = snd_soc_register_codec(&i2c->dev,
 			&soc_codec_dev_aic3x, &aic3x_dai, 1);
 	return ret;
+
+err_gpio:
+	if (gpio_is_valid(aic3x->gpio_reset) &&
+	    !aic3x_is_shared_reset(aic3x))
+		gpio_free(aic3x->gpio_reset);
+err:
+	return ret;
 }
 
 static int aic3x_i2c_remove(struct i2c_client *client)
 {
+	struct aic3x_priv *aic3x = i2c_get_clientdata(client);
+
 	snd_soc_unregister_codec(&client->dev);
+	if (gpio_is_valid(aic3x->gpio_reset) &&
+	    !aic3x_is_shared_reset(aic3x)) {
+		gpio_set_value(aic3x->gpio_reset, 0);
+		gpio_free(aic3x->gpio_reset);
+	}
 	return 0;
 }
 
-- 
cgit 


From f9df1ae6b59e5bb16d3094e9c1c8b6feeaf32aae Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 23 Sep 2013 23:53:16 +0100
Subject: ASoC: tlv320aic3x: Move to table based control init

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/tlv320aic3x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index de17a36beb6f..397a2133e2d1 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -1369,8 +1369,6 @@ static int aic3x_probe(struct snd_soc_codec *codec)
 			      (aic3x->setup->gpio_func[1] & 0xf) << 4);
 	}
 
-	snd_soc_add_codec_controls(codec, aic3x_snd_controls,
-			     ARRAY_SIZE(aic3x_snd_controls));
 	if (aic3x->model == AIC3X_MODEL_3007)
 		snd_soc_add_codec_controls(codec, &aic3x_classd_amp_gain_ctrl, 1);
 
@@ -1428,6 +1426,8 @@ static struct snd_soc_codec_driver soc_codec_dev_aic3x = {
 	.remove = aic3x_remove,
 	.suspend = aic3x_suspend,
 	.resume = aic3x_resume,
+	.controls = aic3x_snd_controls,
+	.num_controls = ARRAY_SIZE(aic3x_snd_controls),
 };
 
 /*
-- 
cgit 


From 58a63fbd7c80510140a94442b2ca9199bb6d51c3 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 23 Sep 2013 23:57:36 +0100
Subject: ASoC: tlv320aic3x: Move to table based DAPM init

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/tlv320aic3x.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index 397a2133e2d1..16fc74cae754 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -818,12 +818,6 @@ static int aic3x_add_widgets(struct snd_soc_codec *codec)
 	struct aic3x_priv *aic3x = snd_soc_codec_get_drvdata(codec);
 	struct snd_soc_dapm_context *dapm = &codec->dapm;
 
-	snd_soc_dapm_new_controls(dapm, aic3x_dapm_widgets,
-				  ARRAY_SIZE(aic3x_dapm_widgets));
-
-	/* set up audio path interconnects */
-	snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon));
-
 	if (aic3x->model == AIC3X_MODEL_3007) {
 		snd_soc_dapm_new_controls(dapm, aic3007_dapm_widgets,
 			ARRAY_SIZE(aic3007_dapm_widgets));
@@ -1428,6 +1422,10 @@ static struct snd_soc_codec_driver soc_codec_dev_aic3x = {
 	.resume = aic3x_resume,
 	.controls = aic3x_snd_controls,
 	.num_controls = ARRAY_SIZE(aic3x_snd_controls),
+	.dapm_widgets = aic3x_dapm_widgets,
+	.num_dapm_widgets = ARRAY_SIZE(aic3x_dapm_widgets),
+	.dapm_routes = intercon,
+	.num_dapm_routes = ARRAY_SIZE(intercon),
 };
 
 /*
-- 
cgit 


From 2677b4bb7316c07dd53535e01bd9b2ec699d0314 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 23 Sep 2013 19:55:39 +0100
Subject: ASoC: tlv320aic3x: Don't reference cache datastructure directly

Rather than referencing the cache directly read back the values we are
going to restore, supporting refactoring to use regmap.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/tlv320aic3x.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index 16fc74cae754..83e7d855c49a 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -1068,14 +1068,14 @@ static int aic3x_set_dai_fmt(struct snd_soc_dai *codec_dai,
 
 static int aic3x_init_3007(struct snd_soc_codec *codec)
 {
-	u8 tmp1, tmp2, *cache = codec->reg_cache;
+	unsigned int tmp1, tmp2;
 
 	/*
 	 * There is no need to cache writes to undocumented page 0xD but
 	 * respective page 0 register cache entries must be preserved
 	 */
-	tmp1 = cache[0xD];
-	tmp2 = cache[0x8];
+	tmp1 = snd_soc_read(codec, 0xD);
+	tmp2 = snd_soc_read(codec, 0x8);
 	/* Class-D speaker driver init; datasheet p. 46 */
 	snd_soc_write(codec, AIC3X_PAGE_SELECT, 0x0D);
 	snd_soc_write(codec, 0xD, 0x0D);
@@ -1083,8 +1083,9 @@ static int aic3x_init_3007(struct snd_soc_codec *codec)
 	snd_soc_write(codec, 0x8, 0x5D);
 	snd_soc_write(codec, 0x8, 0x5C);
 	snd_soc_write(codec, AIC3X_PAGE_SELECT, 0x00);
-	cache[0xD] = tmp1;
-	cache[0x8] = tmp2;
+
+	snd_soc_write(codec, 0xD, tmp1);
+	snd_soc_write(codec, 0x8, tmp2);
 
 	return 0;
 }
-- 
cgit 


From 2a6fedec195b9bd20e60f9825ba7cc6315e54652 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Tue, 24 Sep 2013 00:07:13 +0100
Subject: ASoC: tlv320aic3x: Convert to direct regmap API usage

This is slightly more complex than a standard regmap conversion due to
the moderately detailed cache control and the open coding of a register
patch for the class D speaker on the TLV320AIC3007.

Although the device supports paging this is not currently implemented as
the additional pages are only used during the application of the patch
for the TLV320AIC3007.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/tlv320aic3x.c | 151 ++++++++++++++++++++---------------------
 1 file changed, 73 insertions(+), 78 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index 83e7d855c49a..892c108ca67a 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -72,9 +72,9 @@ struct aic3x_disable_nb {
 /* codec private data */
 struct aic3x_priv {
 	struct snd_soc_codec *codec;
+	struct regmap *regmap;
 	struct regulator_bulk_data supplies[AIC3X_NUM_SUPPLIES];
 	struct aic3x_disable_nb disable_nb[AIC3X_NUM_SUPPLIES];
-	enum snd_soc_control_type control_type;
 	struct aic3x_setup_data *setup;
 	unsigned int sysclk;
 	struct list_head list;
@@ -90,35 +90,45 @@ struct aic3x_priv {
 	enum aic3x_micbias_voltage micbias_vg;
 };
 
-static const u8 aic3x_reg[AIC3X_CACHEREGNUM] = {
-	0x00, 0x00, 0x00, 0x10,	/* 0 */
-	0x04, 0x00, 0x00, 0x00,	/* 4 */
-	0x00, 0x00, 0x00, 0x01,	/* 8 */
-	0x00, 0x00, 0x00, 0x80,	/* 12 */
-	0x80, 0xff, 0xff, 0x78,	/* 16 */
-	0x78, 0x78, 0x78, 0x78,	/* 20 */
-	0x78, 0x00, 0x00, 0xfe,	/* 24 */
-	0x00, 0x00, 0xfe, 0x00,	/* 28 */
-	0x18, 0x18, 0x00, 0x00,	/* 32 */
-	0x00, 0x00, 0x00, 0x00,	/* 36 */
-	0x00, 0x00, 0x00, 0x80,	/* 40 */
-	0x80, 0x00, 0x00, 0x00,	/* 44 */
-	0x00, 0x00, 0x00, 0x04,	/* 48 */
-	0x00, 0x00, 0x00, 0x00,	/* 52 */
-	0x00, 0x00, 0x04, 0x00,	/* 56 */
-	0x00, 0x00, 0x00, 0x00,	/* 60 */
-	0x00, 0x04, 0x00, 0x00,	/* 64 */
-	0x00, 0x00, 0x00, 0x00,	/* 68 */
-	0x04, 0x00, 0x00, 0x00,	/* 72 */
-	0x00, 0x00, 0x00, 0x00,	/* 76 */
-	0x00, 0x00, 0x00, 0x00,	/* 80 */
-	0x00, 0x00, 0x00, 0x00,	/* 84 */
-	0x00, 0x00, 0x00, 0x00,	/* 88 */
-	0x00, 0x00, 0x00, 0x00,	/* 92 */
-	0x00, 0x00, 0x00, 0x00,	/* 96 */
-	0x00, 0x00, 0x02, 0x00,	/* 100 */
-	0x00, 0x00, 0x00, 0x00,	/* 104 */
-	0x00, 0x00,            	/* 108 */
+static const struct reg_default aic3x_reg[] = {
+	{   0, 0x00 }, {   1, 0x00 }, {   2, 0x00 }, {   3, 0x10 },
+	{   4, 0x04 }, {   5, 0x00 }, {   6, 0x00 }, {   7, 0x00 },
+	{   8, 0x00 }, {   9, 0x00 }, {  10, 0x00 }, {  11, 0x01 },
+	{  12, 0x00 }, {  13, 0x00 }, {  14, 0x00 }, {  15, 0x80 },
+	{  16, 0x80 }, {  17, 0xff }, {  18, 0xff }, {  19, 0x78 },
+	{  20, 0x78 }, {  21, 0x78 }, {  22, 0x78 }, {  23, 0x78 },
+	{  24, 0x78 }, {  25, 0x00 }, {  26, 0x00 }, {  27, 0xfe },
+	{  28, 0x00 }, {  29, 0x00 }, {  30, 0xfe }, {  31, 0x00 },
+	{  32, 0x18 }, {  33, 0x18 }, {  34, 0x00 }, {  35, 0x00 },
+	{  36, 0x00 }, {  37, 0x00 }, {  38, 0x00 }, {  39, 0x00 },
+	{  40, 0x00 }, {  41, 0x00 }, {  42, 0x00 }, {  43, 0x80 },
+	{  44, 0x80 }, {  45, 0x00 }, {  46, 0x00 }, {  47, 0x00 },
+	{  48, 0x00 }, {  49, 0x00 }, {  50, 0x00 }, {  51, 0x04 },
+	{  52, 0x00 }, {  53, 0x00 }, {  54, 0x00 }, {  55, 0x00 },
+	{  56, 0x00 }, {  57, 0x00 }, {  58, 0x04 }, {  59, 0x00 },
+	{  60, 0x00 }, {  61, 0x00 }, {  62, 0x00 }, {  63, 0x00 },
+	{  64, 0x00 }, {  65, 0x04 }, {  66, 0x00 }, {  67, 0x00 },
+	{  68, 0x00 }, {  69, 0x00 }, {  70, 0x00 }, {  71, 0x00 },
+	{  72, 0x04 }, {  73, 0x00 }, {  74, 0x00 }, {  75, 0x00 },
+	{  76, 0x00 }, {  77, 0x00 }, {  78, 0x00 }, {  79, 0x00 },
+	{  80, 0x00 }, {  81, 0x00 }, {  82, 0x00 }, {  83, 0x00 },
+	{  84, 0x00 }, {  85, 0x00 }, {  86, 0x00 }, {  87, 0x00 },
+	{  88, 0x00 }, {  89, 0x00 }, {  90, 0x00 }, {  91, 0x00 },
+	{  92, 0x00 }, {  93, 0x00 }, {  94, 0x00 }, {  95, 0x00 },
+	{  96, 0x00 }, {  97, 0x00 }, {  98, 0x00 }, {  99, 0x00 },
+	{ 100, 0x00 }, { 101, 0x00 }, { 102, 0x02 }, { 103, 0x00 },
+	{ 104, 0x00 }, { 105, 0x00 }, { 106, 0x00 }, { 107, 0x00 },
+	{ 108, 0x00 }, { 109, 0x00 },
+};
+
+static const struct regmap_config aic3x_regmap = {
+	.reg_bits = 8,
+	.val_bits = 8,
+
+	.max_register = DAC_ICC_ADJ,
+	.reg_defaults = aic3x_reg,
+	.num_reg_defaults = ARRAY_SIZE(aic3x_reg),
+	.cache_type = REGCACHE_RBTREE,
 };
 
 #define SOC_DAPM_SINGLE_AIC3X(xname, reg, shift, mask, invert) \
@@ -1066,30 +1076,6 @@ static int aic3x_set_dai_fmt(struct snd_soc_dai *codec_dai,
 	return 0;
 }
 
-static int aic3x_init_3007(struct snd_soc_codec *codec)
-{
-	unsigned int tmp1, tmp2;
-
-	/*
-	 * There is no need to cache writes to undocumented page 0xD but
-	 * respective page 0 register cache entries must be preserved
-	 */
-	tmp1 = snd_soc_read(codec, 0xD);
-	tmp2 = snd_soc_read(codec, 0x8);
-	/* Class-D speaker driver init; datasheet p. 46 */
-	snd_soc_write(codec, AIC3X_PAGE_SELECT, 0x0D);
-	snd_soc_write(codec, 0xD, 0x0D);
-	snd_soc_write(codec, 0x8, 0x5C);
-	snd_soc_write(codec, 0x8, 0x5D);
-	snd_soc_write(codec, 0x8, 0x5C);
-	snd_soc_write(codec, AIC3X_PAGE_SELECT, 0x00);
-
-	snd_soc_write(codec, 0xD, tmp1);
-	snd_soc_write(codec, 0x8, tmp2);
-
-	return 0;
-}
-
 static int aic3x_regulator_event(struct notifier_block *nb,
 				 unsigned long event, void *data)
 {
@@ -1104,7 +1090,7 @@ static int aic3x_regulator_event(struct notifier_block *nb,
 		 */
 		if (gpio_is_valid(aic3x->gpio_reset))
 			gpio_set_value(aic3x->gpio_reset, 0);
-		aic3x->codec->cache_sync = 1;
+		regcache_mark_dirty(aic3x->regmap);
 	}
 
 	return 0;
@@ -1113,8 +1099,7 @@ static int aic3x_regulator_event(struct notifier_block *nb,
 static int aic3x_set_power(struct snd_soc_codec *codec, int power)
 {
 	struct aic3x_priv *aic3x = snd_soc_codec_get_drvdata(codec);
-	int i, ret;
-	u8 *cache = codec->reg_cache;
+	int ret;
 
 	if (power) {
 		ret = regulator_bulk_enable(ARRAY_SIZE(aic3x->supplies),
@@ -1122,12 +1107,6 @@ static int aic3x_set_power(struct snd_soc_codec *codec, int power)
 		if (ret)
 			goto out;
 		aic3x->power = 1;
-		/*
-		 * Reset release and cache sync is necessary only if some
-		 * supply was off or if there were cached writes
-		 */
-		if (!codec->cache_sync)
-			goto out;
 
 		if (gpio_is_valid(aic3x->gpio_reset)) {
 			udelay(1);
@@ -1135,12 +1114,8 @@ static int aic3x_set_power(struct snd_soc_codec *codec, int power)
 		}
 
 		/* Sync reg_cache with the hardware */
-		codec->cache_only = 0;
-		for (i = AIC3X_SAMPLE_RATE_SEL_REG; i < ARRAY_SIZE(aic3x_reg); i++)
-			snd_soc_write(codec, i, cache[i]);
-		if (aic3x->model == AIC3X_MODEL_3007)
-			aic3x_init_3007(codec);
-		codec->cache_sync = 0;
+		regcache_cache_only(aic3x->regmap, false);
+		regcache_sync(aic3x->regmap);
 	} else {
 		/*
 		 * Do soft reset to this codec instance in order to clear
@@ -1148,10 +1123,10 @@ static int aic3x_set_power(struct snd_soc_codec *codec, int power)
 		 * remain on
 		 */
 		snd_soc_write(codec, AIC3X_RESET, SOFT_RESET);
-		codec->cache_sync = 1;
+		regcache_mark_dirty(aic3x->regmap);
 		aic3x->power = 0;
 		/* HW writes are needless when bias is off */
-		codec->cache_only = 1;
+		regcache_cache_only(aic3x->regmap, true);
 		ret = regulator_bulk_disable(ARRAY_SIZE(aic3x->supplies),
 					     aic3x->supplies);
 	}
@@ -1306,7 +1281,6 @@ static int aic3x_init(struct snd_soc_codec *codec)
 	snd_soc_write(codec, LINE2R_2_MONOLOPM_VOL, DEFAULT_VOL);
 
 	if (aic3x->model == AIC3X_MODEL_3007) {
-		aic3x_init_3007(codec);
 		snd_soc_write(codec, CLASSD_CTRL, 0);
 	}
 
@@ -1334,7 +1308,7 @@ static int aic3x_probe(struct snd_soc_codec *codec)
 	INIT_LIST_HEAD(&aic3x->list);
 	aic3x->codec = codec;
 
-	ret = snd_soc_codec_set_cache_io(codec, 8, 8, aic3x->control_type);
+	ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_REGMAP);
 	if (ret != 0) {
 		dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
 		return ret;
@@ -1353,7 +1327,7 @@ static int aic3x_probe(struct snd_soc_codec *codec)
 		}
 	}
 
-	codec->cache_only = 1;
+	regcache_mark_dirty(aic3x->regmap);
 	aic3x_init(codec);
 
 	if (aic3x->setup) {
@@ -1414,9 +1388,6 @@ static int aic3x_remove(struct snd_soc_codec *codec)
 static struct snd_soc_codec_driver soc_codec_dev_aic3x = {
 	.set_bias_level = aic3x_set_bias_level,
 	.idle_bias_off = true,
-	.reg_cache_size = ARRAY_SIZE(aic3x_reg),
-	.reg_word_size = sizeof(u8),
-	.reg_cache_default = aic3x_reg,
 	.probe = aic3x_probe,
 	.remove = aic3x_remove,
 	.suspend = aic3x_suspend,
@@ -1443,6 +1414,16 @@ static const struct i2c_device_id aic3x_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, aic3x_i2c_id);
 
+static const struct reg_default aic3007_class_d[] = {
+	/* Class-D speaker driver init; datasheet p. 46 */
+	{ AIC3X_PAGE_SELECT, 0x0D },
+	{ 0xD, 0x0D },
+	{ 0x8, 0x5C },
+	{ 0x8, 0x5D },
+	{ 0x8, 0x5C },
+	{ AIC3X_PAGE_SELECT, 0x00 },
+};
+
 /*
  * If the i2c layer weren't so broken, we could pass this kind of data
  * around
@@ -1463,7 +1444,13 @@ static int aic3x_i2c_probe(struct i2c_client *i2c,
 		return -ENOMEM;
 	}
 
-	aic3x->control_type = SND_SOC_I2C;
+	aic3x->regmap = devm_regmap_init_i2c(i2c, &aic3x_regmap);
+	if (IS_ERR(aic3x->regmap)) {
+		ret = PTR_ERR(aic3x->regmap);
+		return ret;
+	}
+
+	regcache_cache_only(aic3x->regmap, true);
 
 	i2c_set_clientdata(i2c, aic3x);
 	if (pdata) {
@@ -1533,6 +1520,14 @@ static int aic3x_i2c_probe(struct i2c_client *i2c,
 		goto err_gpio;
 	}
 
+	if (aic3x->model == AIC3X_MODEL_3007) {
+		ret = regmap_register_patch(aic3x->regmap, aic3007_class_d,
+					    ARRAY_SIZE(aic3007_class_d));
+		if (ret != 0)
+			dev_err(&i2c->dev, "Failed to init class D: %d\n",
+				ret);
+	}
+
 	ret = snd_soc_register_codec(&i2c->dev,
 			&soc_codec_dev_aic3x, &aic3x_dai, 1);
 	return ret;
-- 
cgit 


From 19ab2a7a24539d6c80dfe301d2970b075ad3b9ab Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Tue, 24 Sep 2013 11:14:39 +0100
Subject: ASoC: max98088: Set max_register

Makes some of the debug functions more useful.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/max98088.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/codecs/max98088.c b/sound/soc/codecs/max98088.c
index 31912d59702c..66ceee22fdad 100644
--- a/sound/soc/codecs/max98088.c
+++ b/sound/soc/codecs/max98088.c
@@ -552,6 +552,7 @@ static const struct regmap_config max98088_regmap = {
 
 	.readable_reg = max98088_readable_register,
 	.volatile_reg = max98088_volatile_register,
+	.max_register = 0xff,
 
 	.reg_defaults = max98088_reg,
 	.num_reg_defaults = ARRAY_SIZE(max98088_reg),
-- 
cgit 


From 068416620c0d956b3b382d19dd3000119e280f8c Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 23 Sep 2013 18:12:51 +0100
Subject: ASoC: max9850: Convert to direct regmap API usage

This prepares for removal of the duplicated register I/O functionality in
ASoC.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/max9850.c | 39 +++++++++++++++++++++++++++++----------
 1 file changed, 29 insertions(+), 10 deletions(-)

diff --git a/sound/soc/codecs/max9850.c b/sound/soc/codecs/max9850.c
index 58c38a5b481c..c5dd61785f8d 100644
--- a/sound/soc/codecs/max9850.c
+++ b/sound/soc/codecs/max9850.c
@@ -18,6 +18,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/i2c.h>
+#include <linux/regmap.h>
 #include <linux/slab.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -27,18 +28,26 @@
 #include "max9850.h"
 
 struct max9850_priv {
+	struct regmap *regmap;
 	unsigned int sysclk;
 };
 
 /* max9850 register cache */
-static const u8 max9850_reg[MAX9850_CACHEREGNUM] = {
-	0x00, 0x00, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+static const struct reg_default max9850_reg[] = {
+	{  2, 0x0c },
+	{  3, 0x00 },
+	{  4, 0x00 },
+	{  5, 0x00 },
+	{  6, 0x00 },
+	{  7, 0x00 },
+	{  8, 0x00 },
+	{  9, 0x00 },
+	{ 10, 0x00 },
 };
 
 /* these registers are not used at the moment but provided for the sake of
  * completeness */
-static int max9850_volatile_register(struct snd_soc_codec *codec,
-		unsigned int reg)
+static bool max9850_volatile_register(struct device *dev, unsigned int reg)
 {
 	switch (reg) {
 	case MAX9850_STATUSA:
@@ -49,6 +58,15 @@ static int max9850_volatile_register(struct snd_soc_codec *codec,
 	}
 }
 
+static const struct regmap_config max9850_regmap = {
+	.reg_bits = 8,
+	.val_bits = 8,
+
+	.max_register = MAX9850_DIGITAL_AUDIO,
+	.volatile_reg = max9850_volatile_register,
+	.cache_type = REGCACHE_RBTREE,
+};
+
 static const unsigned int max9850_tlv[] = {
 	TLV_DB_RANGE_HEAD(4),
 	0x18, 0x1f, TLV_DB_SCALE_ITEM(-7450, 400, 0),
@@ -225,6 +243,7 @@ static int max9850_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
 static int max9850_set_bias_level(struct snd_soc_codec *codec,
 				  enum snd_soc_bias_level level)
 {
+	struct max9850_priv *max9850 = snd_soc_codec_get_drvdata(codec);
 	int ret;
 
 	switch (level) {
@@ -234,7 +253,7 @@ static int max9850_set_bias_level(struct snd_soc_codec *codec,
 		break;
 	case SND_SOC_BIAS_STANDBY:
 		if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
-			ret = snd_soc_cache_sync(codec);
+			ret = regcache_sync(max9850->regmap);
 			if (ret) {
 				dev_err(codec->dev,
 					"Failed to sync cache: %d\n", ret);
@@ -295,7 +314,7 @@ static int max9850_probe(struct snd_soc_codec *codec)
 {
 	int ret;
 
-	ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_I2C);
+	ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_REGMAP);
 	if (ret < 0) {
 		dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
 		return ret;
@@ -316,10 +335,6 @@ static struct snd_soc_codec_driver soc_codec_dev_max9850 = {
 	.suspend =	max9850_suspend,
 	.resume =	max9850_resume,
 	.set_bias_level = max9850_set_bias_level,
-	.reg_cache_size = ARRAY_SIZE(max9850_reg),
-	.reg_word_size = sizeof(u8),
-	.reg_cache_default = max9850_reg,
-	.volatile_register = max9850_volatile_register,
 
 	.controls = max9850_controls,
 	.num_controls = ARRAY_SIZE(max9850_controls),
@@ -340,6 +355,10 @@ static int max9850_i2c_probe(struct i2c_client *i2c,
 	if (max9850 == NULL)
 		return -ENOMEM;
 
+	max9850->regmap = devm_regmap_init_i2c(i2c, &max9850_regmap);
+	if (IS_ERR(max9850->regmap))
+		return PTR_ERR(max9850->regmap);
+
 	i2c_set_clientdata(i2c, max9850);
 
 	ret = snd_soc_register_codec(&i2c->dev,
-- 
cgit 


From 6f88063c1474b8cdd9254d3934047b6087222145 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 13:46:05 +0100
Subject: ASoC: cq93vc: Use table based control registration

Saves a little code.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/cq93vc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/cq93vc.c b/sound/soc/codecs/cq93vc.c
index e2c4c0a896e2..e538f4eca980 100644
--- a/sound/soc/codecs/cq93vc.c
+++ b/sound/soc/codecs/cq93vc.c
@@ -156,10 +156,6 @@ static int cq93vc_probe(struct snd_soc_codec *codec)
 	davinci_vc->cq93vc.codec = codec;
 	codec->control_data = davinci_vc;
 
-	/* Set controls */
-	snd_soc_add_codec_controls(codec, cq93vc_snd_controls,
-			     ARRAY_SIZE(cq93vc_snd_controls));
-
 	/* Off, with power on */
 	cq93vc_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
@@ -180,6 +176,8 @@ static struct snd_soc_codec_driver soc_codec_dev_cq93vc = {
 	.probe = cq93vc_probe,
 	.remove = cq93vc_remove,
 	.resume = cq93vc_resume,
+	.controls = cq93vc_snd_controls,
+	.num_controls = ARRAY_SIZE(cq93vc_snd_controls),
 };
 
 static int cq93vc_platform_probe(struct platform_device *pdev)
-- 
cgit 


From 1201939a6f981cb656872784e39ef443540078cd Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 13:38:16 +0100
Subject: ASoC: cq93vc: Use core I/O functions

Support future refactoring by using the core I/O functions rather than
calling the driver provided I/O functions directly.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/cq93vc.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/sound/soc/codecs/cq93vc.c b/sound/soc/codecs/cq93vc.c
index e538f4eca980..2cbb584b33de 100644
--- a/sound/soc/codecs/cq93vc.c
+++ b/sound/soc/codecs/cq93vc.c
@@ -64,13 +64,15 @@ static const struct snd_kcontrol_new cq93vc_snd_controls[] = {
 static int cq93vc_mute(struct snd_soc_dai *dai, int mute)
 {
 	struct snd_soc_codec *codec = dai->codec;
-	u8 reg = cq93vc_read(codec, DAVINCI_VC_REG09) & ~DAVINCI_VC_REG09_MUTE;
+	u8 reg;
 
 	if (mute)
-		cq93vc_write(codec, DAVINCI_VC_REG09,
-			     reg | DAVINCI_VC_REG09_MUTE);
+		reg = DAVINCI_VC_REG09_MUTE;
 	else
-		cq93vc_write(codec, DAVINCI_VC_REG09, reg);
+		reg = 0;
+
+	snd_soc_update_bits(codec, DAVINCI_VC_REG09, DAVINCI_VC_REG09_MUTE,
+			    reg);
 
 	return 0;
 }
@@ -97,18 +99,18 @@ static int cq93vc_set_bias_level(struct snd_soc_codec *codec,
 {
 	switch (level) {
 	case SND_SOC_BIAS_ON:
-		cq93vc_write(codec, DAVINCI_VC_REG12,
+		snd_soc_write(codec, DAVINCI_VC_REG12,
 			     DAVINCI_VC_REG12_POWER_ALL_ON);
 		break;
 	case SND_SOC_BIAS_PREPARE:
 		break;
 	case SND_SOC_BIAS_STANDBY:
-		cq93vc_write(codec, DAVINCI_VC_REG12,
+		snd_soc_write(codec, DAVINCI_VC_REG12,
 			     DAVINCI_VC_REG12_POWER_ALL_OFF);
 		break;
 	case SND_SOC_BIAS_OFF:
 		/* force all power off */
-		cq93vc_write(codec, DAVINCI_VC_REG12,
+		snd_soc_write(codec, DAVINCI_VC_REG12,
 			     DAVINCI_VC_REG12_POWER_ALL_OFF);
 		break;
 	}
-- 
cgit 


From d33c33352b3228ca3a422e55981f80fc12dc30f8 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 31 Aug 2013 13:52:41 +0100
Subject: ASoC: cq93vc: Use regmap for I/O

Avoid use of the ASoC-specific register I/O functions by converting to
use the MMIO regmap provided the core MFD.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/cq93vc.c | 24 +++---------------------
 1 file changed, 3 insertions(+), 21 deletions(-)

diff --git a/sound/soc/codecs/cq93vc.c b/sound/soc/codecs/cq93vc.c
index 2cbb584b33de..43737a27d79c 100644
--- a/sound/soc/codecs/cq93vc.c
+++ b/sound/soc/codecs/cq93vc.c
@@ -38,24 +38,6 @@
 #include <sound/soc.h>
 #include <sound/initval.h>
 
-static inline unsigned int cq93vc_read(struct snd_soc_codec *codec,
-						unsigned int reg)
-{
-	struct davinci_vc *davinci_vc = codec->control_data;
-
-	return readl(davinci_vc->base + reg);
-}
-
-static inline int cq93vc_write(struct snd_soc_codec *codec, unsigned int reg,
-		       unsigned int value)
-{
-	struct davinci_vc *davinci_vc = codec->control_data;
-
-	writel(value, davinci_vc->base + reg);
-
-	return 0;
-}
-
 static const struct snd_kcontrol_new cq93vc_snd_controls[] = {
 	SOC_SINGLE("PGA Capture Volume", DAVINCI_VC_REG05, 0, 0x03, 0),
 	SOC_SINGLE("Mono DAC Playback Volume", DAVINCI_VC_REG09, 0, 0x3f, 0),
@@ -156,7 +138,9 @@ static int cq93vc_probe(struct snd_soc_codec *codec)
 	struct davinci_vc *davinci_vc = codec->dev->platform_data;
 
 	davinci_vc->cq93vc.codec = codec;
-	codec->control_data = davinci_vc;
+	codec->control_data = davinci_vc->regmap;
+
+	snd_soc_codec_set_cache_io(codec, 32, 32, SND_SOC_REGMAP);
 
 	/* Off, with power on */
 	cq93vc_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
@@ -172,8 +156,6 @@ static int cq93vc_remove(struct snd_soc_codec *codec)
 }
 
 static struct snd_soc_codec_driver soc_codec_dev_cq93vc = {
-	.read = cq93vc_read,
-	.write = cq93vc_write,
 	.set_bias_level = cq93vc_set_bias_level,
 	.probe = cq93vc_probe,
 	.remove = cq93vc_remove,
-- 
cgit 


From efeb970ee799b80c984a42d5706081af6047e160 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 23 Sep 2013 23:12:17 -0700
Subject: ASoC: rsnd: remove rsnd_priv_read/write/bset()

adg.c only used rsnd_priv_read/write/bset()
which is the only user of NULL mod.
but, it can be removed.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/sh/rcar/adg.c  | 10 +++++++---
 sound/soc/sh/rcar/rsnd.h |  4 ----
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/sound/soc/sh/rcar/adg.c b/sound/soc/sh/rcar/adg.c
index 2935bbf1811b..9430097979a5 100644
--- a/sound/soc/sh/rcar/adg.c
+++ b/sound/soc/sh/rcar/adg.c
@@ -21,6 +21,7 @@ struct rsnd_adg {
 
 	int rate_of_441khz_div_6;
 	int rate_of_48khz_div_6;
+	u32 ckr;
 };
 
 #define for_each_rsnd_clk(pos, adg, i)		\
@@ -115,6 +116,11 @@ int rsnd_adg_ssi_clk_try_start(struct rsnd_mod *mod, unsigned int rate)
 
 found_clock:
 
+	/* see rsnd_adg_ssi_clk_init() */
+	rsnd_mod_bset(mod, SSICKR, 0x00FF0000, adg->ckr);
+	rsnd_mod_write(mod, BRRA,  0x00000002); /* 1/6 */
+	rsnd_mod_write(mod, BRRB,  0x00000002); /* 1/6 */
+
 	/*
 	 * This "mod" = "ssi" here.
 	 * we can get "ssi id" from mod
@@ -181,9 +187,7 @@ static void rsnd_adg_ssi_clk_init(struct rsnd_priv *priv, struct rsnd_adg *adg)
 		}
 	}
 
-	rsnd_priv_bset(priv, SSICKR, 0x00FF0000, ckr);
-	rsnd_priv_write(priv, BRRA,  0x00000002); /* 1/6 */
-	rsnd_priv_write(priv, BRRB,  0x00000002); /* 1/6 */
+	adg->ckr = ckr;
 }
 
 int rsnd_adg_probe(struct platform_device *pdev,
diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h
index 9cc6986a8cfb..3868aaf41cc4 100644
--- a/sound/soc/sh/rcar/rsnd.h
+++ b/sound/soc/sh/rcar/rsnd.h
@@ -78,10 +78,6 @@ struct rsnd_dai_stream;
 #define rsnd_mod_bset(m, r, s, d) \
 	rsnd_bset(rsnd_mod_to_priv(m), m, RSND_REG_##r, s, d)
 
-#define rsnd_priv_read(p, r)		rsnd_read(p, NULL, RSND_REG_##r)
-#define rsnd_priv_write(p, r, d)	rsnd_write(p, NULL, RSND_REG_##r, d)
-#define rsnd_priv_bset(p, r, s, d)	rsnd_bset(p, NULL, RSND_REG_##r, s, d)
-
 u32 rsnd_read(struct rsnd_priv *priv, struct rsnd_mod *mod, enum rsnd_reg reg);
 void rsnd_write(struct rsnd_priv *priv, struct rsnd_mod *mod,
 		enum rsnd_reg reg, u32 data);
-- 
cgit 


From 55e5b6fd5af04b6d8b0ac6635edf49476ff298ba Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 23 Sep 2013 23:12:27 -0700
Subject: ASoC: rsnd: use regmap instead of original register mapping method

Current Linux kernel is supporting regmap/regmap_field,
and, it is good match for Renesas Sound Gen1/Gen2 register mapping.
This patch uses regmap instead of original method for register access

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/sh/rcar/core.c |  45 ----------
 sound/soc/sh/rcar/gen.c  | 224 ++++++++++++++++++++++++++++++-----------------
 2 files changed, 143 insertions(+), 126 deletions(-)

diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index a35706028514..fc83f0f2aead 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -106,51 +106,6 @@
 	(!(priv->info->func) ? -ENODEV :		\
 	 priv->info->func(param))
 
-
-/*
- *	basic function
- */
-u32 rsnd_read(struct rsnd_priv *priv,
-	      struct rsnd_mod *mod, enum rsnd_reg reg)
-{
-	void __iomem *base = rsnd_gen_reg_get(priv, mod, reg);
-
-	BUG_ON(!base);
-
-	return ioread32(base);
-}
-
-void rsnd_write(struct rsnd_priv *priv,
-		struct rsnd_mod *mod,
-		enum rsnd_reg reg, u32 data)
-{
-	void __iomem *base = rsnd_gen_reg_get(priv, mod, reg);
-	struct device *dev = rsnd_priv_to_dev(priv);
-
-	BUG_ON(!base);
-
-	dev_dbg(dev, "w %p : %08x\n", base, data);
-
-	iowrite32(data, base);
-}
-
-void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod,
-	       enum rsnd_reg reg, u32 mask, u32 data)
-{
-	void __iomem *base = rsnd_gen_reg_get(priv, mod, reg);
-	struct device *dev = rsnd_priv_to_dev(priv);
-	u32 val;
-
-	BUG_ON(!base);
-
-	val = ioread32(base);
-	val &= ~mask;
-	val |= data & mask;
-	iowrite32(val, base);
-
-	dev_dbg(dev, "s %p : %08x\n", base, val);
-}
-
 /*
  *	rsnd_mod functions
  */
diff --git a/sound/soc/sh/rcar/gen.c b/sound/soc/sh/rcar/gen.c
index 331fc558d796..61212ee97c28 100644
--- a/sound/soc/sh/rcar/gen.c
+++ b/sound/soc/sh/rcar/gen.c
@@ -24,21 +24,97 @@ struct rsnd_gen_ops {
 			 struct rsnd_dai_stream *io);
 };
 
-struct rsnd_gen_reg_map {
-	int index;	/* -1 : not supported */
-	u32 offset_id;	/* offset of ssi0, ssi1, ssi2... */
-	u32 offset_adr;	/* offset of SSICR, SSISR, ... */
-};
-
 struct rsnd_gen {
 	void __iomem *base[RSND_BASE_MAX];
 
-	struct rsnd_gen_reg_map reg_map[RSND_REG_MAX];
 	struct rsnd_gen_ops *ops;
+
+	struct regmap *regmap;
+	struct regmap_field *regs[RSND_REG_MAX];
 };
 
 #define rsnd_priv_to_gen(p)	((struct rsnd_gen *)(p)->gen)
 
+#define RSND_REG_SET(gen, id, reg_id, offset, _id_offset, _id_size)	\
+	[id] = {							\
+		.reg = (unsigned int)gen->base[reg_id] + offset,	\
+		.lsb = 0,						\
+		.msb = 31,						\
+		.id_size = _id_size,					\
+		.id_offset = _id_offset,				\
+	}
+
+/*
+ *		basic function
+ */
+static int rsnd_regmap_write32(void *context, const void *_data, size_t count)
+{
+	struct rsnd_priv *priv = context;
+	struct device *dev = rsnd_priv_to_dev(priv);
+	u32 *data = (u32 *)_data;
+	u32 val = data[1];
+	void __iomem *reg = (void *)data[0];
+
+	iowrite32(val, reg);
+
+	dev_dbg(dev, "w %p : %08x\n", reg, val);
+
+	return 0;
+}
+
+static int rsnd_regmap_read32(void *context,
+			      const void *_data, size_t reg_size,
+			      void *_val, size_t val_size)
+{
+	struct rsnd_priv *priv = context;
+	struct device *dev = rsnd_priv_to_dev(priv);
+	u32 *data = (u32 *)_data;
+	u32 *val = (u32 *)_val;
+	void __iomem *reg = (void *)data[0];
+
+	*val = ioread32(reg);
+
+	dev_dbg(dev, "r %p : %08x\n", reg, *val);
+
+	return 0;
+}
+
+static struct regmap_bus rsnd_regmap_bus = {
+	.write				= rsnd_regmap_write32,
+	.read				= rsnd_regmap_read32,
+	.reg_format_endian_default	= REGMAP_ENDIAN_NATIVE,
+	.val_format_endian_default	= REGMAP_ENDIAN_NATIVE,
+};
+
+u32 rsnd_read(struct rsnd_priv *priv,
+	      struct rsnd_mod *mod, enum rsnd_reg reg)
+{
+	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+	u32 val;
+
+	regmap_fields_read(gen->regs[reg], rsnd_mod_id(mod), &val);
+
+	return val;
+}
+
+void rsnd_write(struct rsnd_priv *priv,
+		struct rsnd_mod *mod,
+		enum rsnd_reg reg, u32 data)
+{
+	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+
+	regmap_fields_write(gen->regs[reg], rsnd_mod_id(mod), data);
+}
+
+void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod,
+	       enum rsnd_reg reg, u32 mask, u32 data)
+{
+	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
+
+	regmap_fields_update_bits(gen->regs[reg], rsnd_mod_id(mod),
+				  mask, data);
+}
+
 /*
  *		Gen2
  *		will be filled in the future
@@ -103,39 +179,64 @@ static int rsnd_gen1_path_exit(struct rsnd_priv *priv,
 	return ret;
 }
 
-#define RSND_GEN1_REG_MAP(g, s, i, oi, oa)				\
-	do {								\
-		(g)->reg_map[RSND_REG_##i].index  = RSND_GEN1_##s;	\
-		(g)->reg_map[RSND_REG_##i].offset_id = oi;		\
-		(g)->reg_map[RSND_REG_##i].offset_adr = oa;		\
-	} while (0)
+/* single address mapping */
+#define RSND_GEN1_S_REG(gen, reg, id, offset)	\
+	RSND_REG_SET(gen, RSND_REG_##id, RSND_GEN1_##reg, offset, 0, 9)
 
-static void rsnd_gen1_reg_map_init(struct rsnd_gen *gen)
+/* multi address mapping */
+#define RSND_GEN1_M_REG(gen, reg, id, offset, _id_offset)	\
+	RSND_REG_SET(gen, RSND_REG_##id, RSND_GEN1_##reg, offset, _id_offset, 9)
+
+static int rsnd_gen1_regmap_init(struct rsnd_priv *priv, struct rsnd_gen *gen)
 {
-	RSND_GEN1_REG_MAP(gen, SRU,	SRC_ROUTE_SEL,	0x0,	0x00);
-	RSND_GEN1_REG_MAP(gen, SRU,	SRC_TMG_SEL0,	0x0,	0x08);
-	RSND_GEN1_REG_MAP(gen, SRU,	SRC_TMG_SEL1,	0x0,	0x0c);
-	RSND_GEN1_REG_MAP(gen, SRU,	SRC_TMG_SEL2,	0x0,	0x10);
-	RSND_GEN1_REG_MAP(gen, SRU,	SRC_CTRL,	0x0,	0xc0);
-	RSND_GEN1_REG_MAP(gen, SRU,	SSI_MODE0,	0x0,	0xD0);
-	RSND_GEN1_REG_MAP(gen, SRU,	SSI_MODE1,	0x0,	0xD4);
-	RSND_GEN1_REG_MAP(gen, SRU,	BUSIF_MODE,	0x4,	0x20);
-	RSND_GEN1_REG_MAP(gen, SRU,	BUSIF_ADINR,	0x40,	0x214);
-
-	RSND_GEN1_REG_MAP(gen, ADG,	BRRA,		0x0,	0x00);
-	RSND_GEN1_REG_MAP(gen, ADG,	BRRB,		0x0,	0x04);
-	RSND_GEN1_REG_MAP(gen, ADG,	SSICKR,		0x0,	0x08);
-	RSND_GEN1_REG_MAP(gen, ADG,	AUDIO_CLK_SEL0,	0x0,	0x0c);
-	RSND_GEN1_REG_MAP(gen, ADG,	AUDIO_CLK_SEL1,	0x0,	0x10);
-	RSND_GEN1_REG_MAP(gen, ADG,	AUDIO_CLK_SEL3,	0x0,	0x18);
-	RSND_GEN1_REG_MAP(gen, ADG,	AUDIO_CLK_SEL4,	0x0,	0x1c);
-	RSND_GEN1_REG_MAP(gen, ADG,	AUDIO_CLK_SEL5,	0x0,	0x20);
-
-	RSND_GEN1_REG_MAP(gen, SSI,	SSICR,		0x40,	0x00);
-	RSND_GEN1_REG_MAP(gen, SSI,	SSISR,		0x40,	0x04);
-	RSND_GEN1_REG_MAP(gen, SSI,	SSITDR,		0x40,	0x08);
-	RSND_GEN1_REG_MAP(gen, SSI,	SSIRDR,		0x40,	0x0c);
-	RSND_GEN1_REG_MAP(gen, SSI,	SSIWSR,		0x40,	0x20);
+	int i;
+	struct device *dev = rsnd_priv_to_dev(priv);
+	struct regmap_config regc;
+	struct reg_field regf[RSND_REG_MAX] = {
+		RSND_GEN1_S_REG(gen, SRU,	SRC_ROUTE_SEL,	0x00),
+		RSND_GEN1_S_REG(gen, SRU,	SRC_TMG_SEL0,	0x08),
+		RSND_GEN1_S_REG(gen, SRU,	SRC_TMG_SEL1,	0x0c),
+		RSND_GEN1_S_REG(gen, SRU,	SRC_TMG_SEL2,	0x10),
+		RSND_GEN1_S_REG(gen, SRU,	SRC_CTRL,	0xc0),
+		RSND_GEN1_S_REG(gen, SRU,	SSI_MODE0,	0xD0),
+		RSND_GEN1_S_REG(gen, SRU,	SSI_MODE1,	0xD4),
+		RSND_GEN1_M_REG(gen, SRU,	BUSIF_MODE,	0x20,	0x4),
+		RSND_GEN1_M_REG(gen, SRU,	BUSIF_ADINR,	0x214,	0x40),
+
+		RSND_GEN1_S_REG(gen, ADG,	BRRA,		0x00),
+		RSND_GEN1_S_REG(gen, ADG,	BRRB,		0x04),
+		RSND_GEN1_S_REG(gen, ADG,	SSICKR,		0x08),
+		RSND_GEN1_S_REG(gen, ADG,	AUDIO_CLK_SEL0,	0x0c),
+		RSND_GEN1_S_REG(gen, ADG,	AUDIO_CLK_SEL1,	0x10),
+		RSND_GEN1_S_REG(gen, ADG,	AUDIO_CLK_SEL3,	0x18),
+		RSND_GEN1_S_REG(gen, ADG,	AUDIO_CLK_SEL4,	0x1c),
+		RSND_GEN1_S_REG(gen, ADG,	AUDIO_CLK_SEL5,	0x20),
+
+		RSND_GEN1_M_REG(gen, SSI,	SSICR,		0x00,	0x40),
+		RSND_GEN1_M_REG(gen, SSI,	SSISR,		0x04,	0x40),
+		RSND_GEN1_M_REG(gen, SSI,	SSITDR,		0x08,	0x40),
+		RSND_GEN1_M_REG(gen, SSI,	SSIRDR,		0x0c,	0x40),
+		RSND_GEN1_M_REG(gen, SSI,	SSIWSR,		0x20,	0x40),
+	};
+
+	memset(&regc, 0, sizeof(regc));
+	regc.reg_bits = 32;
+	regc.val_bits = 32;
+
+	gen->regmap = devm_regmap_init(dev, &rsnd_regmap_bus, priv, &regc);
+	if (IS_ERR(gen->regmap)) {
+		dev_err(dev, "regmap error %ld\n", PTR_ERR(gen->regmap));
+		return PTR_ERR(gen->regmap);
+	}
+
+	for (i = 0; i < RSND_REG_MAX; i++) {
+		gen->regs[i] = devm_regmap_field_alloc(dev, gen->regmap, regf[i]);
+		if (IS_ERR(gen->regs[i]))
+			return PTR_ERR(gen->regs[i]);
+
+	}
+
+	return 0;
 }
 
 static int rsnd_gen1_probe(struct platform_device *pdev,
@@ -147,6 +248,7 @@ static int rsnd_gen1_probe(struct platform_device *pdev,
 	struct resource *sru_res;
 	struct resource *adg_res;
 	struct resource *ssi_res;
+	int ret;
 
 	/*
 	 * map address
@@ -163,7 +265,9 @@ static int rsnd_gen1_probe(struct platform_device *pdev,
 	    IS_ERR(gen->base[RSND_GEN1_SSI]))
 		return -ENODEV;
 
-	rsnd_gen1_reg_map_init(gen);
+	ret = rsnd_gen1_regmap_init(priv, gen);
+	if (ret < 0)
+		return ret;
 
 	dev_dbg(dev, "Gen1 device probed\n");
 	dev_dbg(dev, "SRU : %08x => %p\n",	sru_res->start,
@@ -210,46 +314,12 @@ int rsnd_gen_path_exit(struct rsnd_priv *priv,
 	return gen->ops->path_exit(priv, rdai, io);
 }
 
-void __iomem *rsnd_gen_reg_get(struct rsnd_priv *priv,
-			       struct rsnd_mod *mod,
-			       enum rsnd_reg reg)
-{
-	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
-	struct device *dev = rsnd_priv_to_dev(priv);
-	int index;
-	u32 offset_id, offset_adr;
-
-	if (reg >= RSND_REG_MAX) {
-		dev_err(dev, "rsnd_reg reg error\n");
-		return NULL;
-	}
-
-	index		= gen->reg_map[reg].index;
-	offset_id	= gen->reg_map[reg].offset_id;
-	offset_adr	= gen->reg_map[reg].offset_adr;
-
-	if (index < 0) {
-		dev_err(dev, "unsupported reg access %d\n", reg);
-		return NULL;
-	}
-
-	if (offset_id && mod)
-		offset_id *= rsnd_mod_id(mod);
-
-	/*
-	 * index/offset were set on gen1/gen2
-	 */
-
-	return gen->base[index] + offset_id + offset_adr;
-}
-
 int rsnd_gen_probe(struct platform_device *pdev,
 		   struct rcar_snd_info *info,
 		   struct rsnd_priv *priv)
 {
 	struct device *dev = rsnd_priv_to_dev(priv);
 	struct rsnd_gen *gen;
-	int i;
 
 	gen = devm_kzalloc(dev, sizeof(*gen), GFP_KERNEL);
 	if (!gen) {
@@ -267,14 +337,6 @@ int rsnd_gen_probe(struct platform_device *pdev,
 
 	priv->gen = gen;
 
-	/*
-	 * see
-	 *	rsnd_reg_get()
-	 *	rsnd_gen_probe()
-	 */
-	for (i = 0; i < RSND_REG_MAX; i++)
-		gen->reg_map[i].index = -1;
-
 	return gen->ops->probe(pdev, info, priv);
 }
 
-- 
cgit 


From d9f37d9e6af8a6477e36f2686a1a9a09d9b3cacf Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 28 May 2013 15:55:56 +0200
Subject: ARM: nomadik: register VMMC regulator

This adds the STw481x VMMC regulator to the Nomadik
device tree.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-nomadik-stn8815.dtsi | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
index 9169d3025f39..0e543e09beea 100644
--- a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
+++ b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
@@ -707,8 +707,14 @@
 		pinctrl-0 = <&i2c0_default_mux>, <&i2c0_default_mode>;
 
 		stw4811@2d {
-			   compatible = "st,stw4811";
-			   reg = <0x2d>;
+			compatible = "st,stw4811";
+			reg = <0x2d>;
+			vmmc_regulator: vmmc {
+				compatible = "st,stw481x-vmmc";
+				regulator-name = "VMMC";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <3300000>;
+			};
 		};
 	};
 
@@ -839,6 +845,7 @@
 			cd-inverted;
 			pinctrl-names = "default";
 			pinctrl-0 = <&mmcsd_default_mux>, <&mmcsd_default_mode>;
+			vmmc-supply = <&vmmc_regulator>;
 		};
 	};
 };
-- 
cgit 


From 4c6d92b3cd05e08452ecb2480c49dd9109ba788a Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Wed, 7 Aug 2013 10:41:16 +0200
Subject: ARM: nomadik: delete MMCI platform data

Now that we have a proper regulator set up for the MMCI driver
and managed through the device tree, we no longer need the
platform data providing the OCR voltages for the MMCI block.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-nomadik/cpu-8815.c | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/arch/arm/mach-nomadik/cpu-8815.c b/arch/arm/mach-nomadik/cpu-8815.c
index 13e0df9c11ce..7a00506dc9e1 100644
--- a/arch/arm/mach-nomadik/cpu-8815.c
+++ b/arch/arm/mach-nomadik/cpu-8815.c
@@ -33,7 +33,6 @@
 #include <linux/of_platform.h>
 #include <linux/mtd/fsmc.h>
 #include <linux/gpio.h>
-#include <linux/amba/mmci.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -189,15 +188,6 @@ static int __init cpu8815_eth_init(void)
 }
 device_initcall(cpu8815_eth_init);
 
-/*
- * TODO:
- * cannot be set from device tree, convert to a proper DT
- * binding.
- */
-static struct mmci_platform_data mmcsd_plat_data = {
-	.ocr_mask = MMC_VDD_29_30,
-};
-
 /*
  * This GPIO pin turns on a line that is used to detect card insertion
  * on this board.
@@ -232,13 +222,10 @@ static int __init cpu8815_mmcsd_init(void)
 }
 device_initcall(cpu8815_mmcsd_init);
 
-
-/* These are mostly to get the right device names for the clock lookups */
+/* This still waits for a device tree enablement patch */
 static struct of_dev_auxdata cpu8815_auxdata_lookup[] __initdata = {
 	OF_DEV_AUXDATA("stericsson,fsmc-nand", NOMADIK_FSMC_BASE,
 		NULL, &cpu8815_nand_data),
-	OF_DEV_AUXDATA("arm,primecell", NOMADIK_SDI_BASE,
-		NULL, &mmcsd_plat_data),
 	{ /* sentinel */ },
 };
 
-- 
cgit 


From 2c5a7424dae5e34b977716f9f0ab8a99d00cc7bc Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 13 Sep 2013 21:15:14 +0200
Subject: ARM: nomadik: delete FSMC platform data

We now have device tree support for setting the NAND timings
for FSMC from the device tree, so delete the last piece of
platform data and auxdata.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-nomadik-stn8815.dtsi |  1 +
 arch/arm/mach-nomadik/cpu-8815.c           | 22 +---------------------
 2 files changed, 2 insertions(+), 21 deletions(-)

diff --git a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
index 0e543e09beea..79425e3836ce 100644
--- a/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
+++ b/arch/arm/boot/dts/ste-nomadik-stn8815.dtsi
@@ -653,6 +653,7 @@
 		reg-names = "fsmc_regs", "nand_data", "nand_addr", "nand_cmd";
 		clocks = <&hclksmc>;
 		status = "okay";
+		timings = /bits/ 8 <0 0 0 0x10 0x0a 0>;
 
 		partition@0 {
 		label = "X-Loader(NAND)";
diff --git a/arch/arm/mach-nomadik/cpu-8815.c b/arch/arm/mach-nomadik/cpu-8815.c
index 7a00506dc9e1..c6c156e5570e 100644
--- a/arch/arm/mach-nomadik/cpu-8815.c
+++ b/arch/arm/mach-nomadik/cpu-8815.c
@@ -31,7 +31,6 @@
 #include <linux/of_gpio.h>
 #include <linux/of_address.h>
 #include <linux/of_platform.h>
-#include <linux/mtd/fsmc.h>
 #include <linux/gpio.h>
 
 #include <asm/mach/arch.h>
@@ -145,17 +144,6 @@ static void __init cpu8815_timer_init_of(void)
 	clocksource_of_init();
 }
 
-static struct fsmc_nand_timings cpu8815_nand_timings = {
-	.thiz	= 0,
-	.thold	= 0x10,
-	.twait	= 0x0A,
-	.tset	= 0,
-};
-
-static struct fsmc_nand_platform_data cpu8815_nand_data = {
-	.nand_timings = &cpu8815_nand_timings,
-};
-
 /*
  * The SMSC911x IRQ is connected to a GPIO pin, but the driver expects
  * to simply request an IRQ passed as a resource. So the GPIO pin needs
@@ -222,21 +210,13 @@ static int __init cpu8815_mmcsd_init(void)
 }
 device_initcall(cpu8815_mmcsd_init);
 
-/* This still waits for a device tree enablement patch */
-static struct of_dev_auxdata cpu8815_auxdata_lookup[] __initdata = {
-	OF_DEV_AUXDATA("stericsson,fsmc-nand", NOMADIK_FSMC_BASE,
-		NULL, &cpu8815_nand_data),
-	{ /* sentinel */ },
-};
-
 static void __init cpu8815_init_of(void)
 {
 #ifdef CONFIG_CACHE_L2X0
 	/* At full speed latency must be >=2, so 0x249 in low bits */
 	l2x0_of_init(0x00730249, 0xfe000fff);
 #endif
-	of_platform_populate(NULL, of_default_bus_match_table,
-			cpu8815_auxdata_lookup, NULL);
+	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }
 
 static const char * cpu8815_board_compat[] = {
-- 
cgit 


From 4aa11d67b66a84189d25f301e7ef206c4f541692 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Tue, 24 Sep 2013 19:26:08 +0100
Subject: ASoC: tlv320aic23: Convert to direct regmap API usage

This moves us towards being able to remove the duplicated register I/O
code in ASoC.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/tlv320aic23.c | 54 ++++++++++++++++++++++++------------------
 1 file changed, 31 insertions(+), 23 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic23.c b/sound/soc/codecs/tlv320aic23.c
index 3a6be8c3d557..5d430cc56f51 100644
--- a/sound/soc/codecs/tlv320aic23.c
+++ b/sound/soc/codecs/tlv320aic23.c
@@ -24,6 +24,7 @@
 #include <linux/delay.h>
 #include <linux/pm.h>
 #include <linux/i2c.h>
+#include <linux/regmap.h>
 #include <linux/slab.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
@@ -37,11 +38,27 @@
 /*
  * AIC23 register cache
  */
-static const u16 tlv320aic23_reg[] = {
-	0x0097, 0x0097, 0x00F9, 0x00F9,	/* 0 */
-	0x001A, 0x0004, 0x0007, 0x0001,	/* 4 */
-	0x0020, 0x0000, 0x0000, 0x0000,	/* 8 */
-	0x0000, 0x0000, 0x0000, 0x0000,	/* 12 */
+static const struct reg_default tlv320aic23_reg[] = {
+	{  0, 0x0097 },
+	{  1, 0x0097 },
+	{  2, 0x00F9 },
+	{  3, 0x00F9 },
+	{  4, 0x001A },
+	{  5, 0x0004 },
+	{  6, 0x0007 },
+	{  7, 0x0001 },
+	{  8, 0x0020 },
+	{  9, 0x0000 },
+};
+
+static const struct regmap_config tlv320aic23_regmap = {
+	.reg_bits = 7,
+	.val_bits = 9,
+
+	.max_register = TLV320AIC23_RESET,
+	.reg_defaults = tlv320aic23_reg,
+	.num_reg_defaults = ARRAY_SIZE(tlv320aic23_reg),
+	.cache_type = REGCACHE_RBTREE,
 };
 
 static const char *rec_src_text[] = { "Line", "Mic" };
@@ -171,7 +188,7 @@ static const struct snd_soc_dapm_route tlv320aic23_intercon[] = {
 
 /* AIC23 driver data */
 struct aic23 {
-	enum snd_soc_control_type control_type;
+	struct regmap *regmap;
 	int mclk;
 	int requested_adc;
 	int requested_dac;
@@ -532,7 +549,9 @@ static int tlv320aic23_suspend(struct snd_soc_codec *codec)
 
 static int tlv320aic23_resume(struct snd_soc_codec *codec)
 {
-	snd_soc_cache_sync(codec);
+	struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec);
+	regcache_mark_dirty(aic23->regmap);
+	regcache_sync(aic23->regmap);
 	tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
 	return 0;
@@ -540,10 +559,9 @@ static int tlv320aic23_resume(struct snd_soc_codec *codec)
 
 static int tlv320aic23_probe(struct snd_soc_codec *codec)
 {
-	struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec);
 	int ret;
 
-	ret = snd_soc_codec_set_cache_io(codec, 7, 9, aic23->control_type);
+	ret = snd_soc_codec_set_cache_io(codec, 7, 9, SND_SOC_REGMAP);
 	if (ret < 0) {
 		dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
 		return ret;
@@ -552,16 +570,6 @@ static int tlv320aic23_probe(struct snd_soc_codec *codec)
 	/* Reset codec */
 	snd_soc_write(codec, TLV320AIC23_RESET, 0);
 
-	/* Write the register default value to cache for reserved registers,
-	 * so the write to the these registers are suppressed by the cache
-	 * restore code when it skips writes of default registers.
-	 */
-	snd_soc_cache_write(codec, 0x0A, 0);
-	snd_soc_cache_write(codec, 0x0B, 0);
-	snd_soc_cache_write(codec, 0x0C, 0);
-	snd_soc_cache_write(codec, 0x0D, 0);
-	snd_soc_cache_write(codec, 0x0E, 0);
-
 	/* power on device */
 	tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
@@ -596,9 +604,6 @@ static int tlv320aic23_remove(struct snd_soc_codec *codec)
 }
 
 static struct snd_soc_codec_driver soc_codec_dev_tlv320aic23 = {
-	.reg_cache_size = ARRAY_SIZE(tlv320aic23_reg),
-	.reg_word_size = sizeof(u16),
-	.reg_cache_default = tlv320aic23_reg,
 	.probe = tlv320aic23_probe,
 	.remove = tlv320aic23_remove,
 	.suspend = tlv320aic23_suspend,
@@ -629,8 +634,11 @@ static int tlv320aic23_codec_probe(struct i2c_client *i2c,
 	if (aic23 == NULL)
 		return -ENOMEM;
 
+	aic23->regmap = devm_regmap_init_i2c(i2c, &tlv320aic23_regmap);
+	if (IS_ERR(aic23->regmap))
+		return PTR_ERR(aic23->regmap);
+
 	i2c_set_clientdata(i2c, aic23);
-	aic23->control_type = SND_SOC_I2C;
 
 	ret =  snd_soc_register_codec(&i2c->dev,
 			&soc_codec_dev_tlv320aic23, &tlv320aic23_dai, 1);
-- 
cgit 


From d4cb2ee17dbb9fb636e5e127e8cb6cbde9d28cef Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: ibm/emac: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/ethernet/ibm/emac/debug.h | 14 +++++++-------
 drivers/net/ethernet/ibm/emac/rgmii.h | 18 +++++++++---------
 drivers/net/ethernet/ibm/emac/tah.h   | 14 +++++++-------
 drivers/net/ethernet/ibm/emac/zmii.h  | 18 +++++++++---------
 4 files changed, 32 insertions(+), 32 deletions(-)

diff --git a/drivers/net/ethernet/ibm/emac/debug.h b/drivers/net/ethernet/ibm/emac/debug.h
index 59a92d5870b5..9c45efe4c8fe 100644
--- a/drivers/net/ethernet/ibm/emac/debug.h
+++ b/drivers/net/ethernet/ibm/emac/debug.h
@@ -29,13 +29,13 @@
 struct emac_instance;
 struct mal_instance;
 
-extern void emac_dbg_register(struct emac_instance *dev);
-extern void emac_dbg_unregister(struct emac_instance *dev);
-extern void mal_dbg_register(struct mal_instance *mal);
-extern void mal_dbg_unregister(struct mal_instance *mal);
-extern int emac_init_debug(void) __init;
-extern void emac_fini_debug(void) __exit;
-extern void emac_dbg_dump_all(void);
+void emac_dbg_register(struct emac_instance *dev);
+void emac_dbg_unregister(struct emac_instance *dev);
+void mal_dbg_register(struct mal_instance *mal);
+void mal_dbg_unregister(struct mal_instance *mal);
+int emac_init_debug(void) __init;
+void emac_fini_debug(void) __exit;
+void emac_dbg_dump_all(void);
 
 # define DBG_LEVEL		1
 
diff --git a/drivers/net/ethernet/ibm/emac/rgmii.h b/drivers/net/ethernet/ibm/emac/rgmii.h
index 668bceeff4a2..d4f1374d1900 100644
--- a/drivers/net/ethernet/ibm/emac/rgmii.h
+++ b/drivers/net/ethernet/ibm/emac/rgmii.h
@@ -56,15 +56,15 @@ struct rgmii_instance {
 
 #ifdef CONFIG_IBM_EMAC_RGMII
 
-extern int rgmii_init(void);
-extern void rgmii_exit(void);
-extern int rgmii_attach(struct platform_device *ofdev, int input, int mode);
-extern void rgmii_detach(struct platform_device *ofdev, int input);
-extern void rgmii_get_mdio(struct platform_device *ofdev, int input);
-extern void rgmii_put_mdio(struct platform_device *ofdev, int input);
-extern void rgmii_set_speed(struct platform_device *ofdev, int input, int speed);
-extern int rgmii_get_regs_len(struct platform_device *ofdev);
-extern void *rgmii_dump_regs(struct platform_device *ofdev, void *buf);
+int rgmii_init(void);
+void rgmii_exit(void);
+int rgmii_attach(struct platform_device *ofdev, int input, int mode);
+void rgmii_detach(struct platform_device *ofdev, int input);
+void rgmii_get_mdio(struct platform_device *ofdev, int input);
+void rgmii_put_mdio(struct platform_device *ofdev, int input);
+void rgmii_set_speed(struct platform_device *ofdev, int input, int speed);
+int rgmii_get_regs_len(struct platform_device *ofdev);
+void *rgmii_dump_regs(struct platform_device *ofdev, void *buf);
 
 #else
 
diff --git a/drivers/net/ethernet/ibm/emac/tah.h b/drivers/net/ethernet/ibm/emac/tah.h
index 350b7096a041..4d5f336f07b3 100644
--- a/drivers/net/ethernet/ibm/emac/tah.h
+++ b/drivers/net/ethernet/ibm/emac/tah.h
@@ -72,13 +72,13 @@ struct tah_instance {
 
 #ifdef CONFIG_IBM_EMAC_TAH
 
-extern int tah_init(void);
-extern void tah_exit(void);
-extern int tah_attach(struct platform_device *ofdev, int channel);
-extern void tah_detach(struct platform_device *ofdev, int channel);
-extern void tah_reset(struct platform_device *ofdev);
-extern int tah_get_regs_len(struct platform_device *ofdev);
-extern void *tah_dump_regs(struct platform_device *ofdev, void *buf);
+int tah_init(void);
+void tah_exit(void);
+int tah_attach(struct platform_device *ofdev, int channel);
+void tah_detach(struct platform_device *ofdev, int channel);
+void tah_reset(struct platform_device *ofdev);
+int tah_get_regs_len(struct platform_device *ofdev);
+void *tah_dump_regs(struct platform_device *ofdev, void *buf);
 
 #else
 
diff --git a/drivers/net/ethernet/ibm/emac/zmii.h b/drivers/net/ethernet/ibm/emac/zmii.h
index 455bfb085493..0959c55b1459 100644
--- a/drivers/net/ethernet/ibm/emac/zmii.h
+++ b/drivers/net/ethernet/ibm/emac/zmii.h
@@ -53,15 +53,15 @@ struct zmii_instance {
 
 #ifdef CONFIG_IBM_EMAC_ZMII
 
-extern int zmii_init(void);
-extern void zmii_exit(void);
-extern int zmii_attach(struct platform_device *ofdev, int input, int *mode);
-extern void zmii_detach(struct platform_device *ofdev, int input);
-extern void zmii_get_mdio(struct platform_device *ofdev, int input);
-extern void zmii_put_mdio(struct platform_device *ofdev, int input);
-extern void zmii_set_speed(struct platform_device *ofdev, int input, int speed);
-extern int zmii_get_regs_len(struct platform_device *ocpdev);
-extern void *zmii_dump_regs(struct platform_device *ofdev, void *buf);
+int zmii_init(void);
+void zmii_exit(void);
+int zmii_attach(struct platform_device *ofdev, int input, int *mode);
+void zmii_detach(struct platform_device *ofdev, int input);
+void zmii_get_mdio(struct platform_device *ofdev, int input);
+void zmii_put_mdio(struct platform_device *ofdev, int input);
+void zmii_set_speed(struct platform_device *ofdev, int input, int speed);
+int zmii_get_regs_len(struct platform_device *ocpdev);
+void *zmii_dump_regs(struct platform_device *ofdev, void *buf);
 
 #else
 # define zmii_init()		0
-- 
cgit 


From 5ccc921af41a862fe969809228f029035f851502 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: intel: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/ethernet/intel/e1000/e1000.h     |  32 ++---
 drivers/net/ethernet/intel/e1000e/e1000.h    |  45 ++++---
 drivers/net/ethernet/intel/igb/e1000_82575.h |  16 +--
 drivers/net/ethernet/intel/igb/e1000_hw.h    |   6 +-
 drivers/net/ethernet/intel/igb/e1000_i210.h  |  38 +++---
 drivers/net/ethernet/intel/igb/e1000_mac.h   |   2 +-
 drivers/net/ethernet/intel/igb/igb.h         |  73 ++++++------
 drivers/net/ethernet/intel/igbvf/igbvf.h     |  22 ++--
 drivers/net/ethernet/intel/ixgb/ixgb.h       |  22 ++--
 drivers/net/ethernet/intel/ixgb/ixgb_hw.h    |  25 ++--
 drivers/net/ethernet/intel/ixgbe/ixgbe.h     | 172 +++++++++++++--------------
 drivers/net/ethernet/intel/ixgbevf/ixgbevf.h |  34 +++---
 12 files changed, 233 insertions(+), 254 deletions(-)

diff --git a/drivers/net/ethernet/intel/e1000/e1000.h b/drivers/net/ethernet/intel/e1000/e1000.h
index 26d9cd59ec75..58c147271a36 100644
--- a/drivers/net/ethernet/intel/e1000/e1000.h
+++ b/drivers/net/ethernet/intel/e1000/e1000.h
@@ -325,7 +325,7 @@ enum e1000_state_t {
 #undef pr_fmt
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
-extern struct net_device *e1000_get_hw_dev(struct e1000_hw *hw);
+struct net_device *e1000_get_hw_dev(struct e1000_hw *hw);
 #define e_dbg(format, arg...) \
 	netdev_dbg(e1000_get_hw_dev(hw), format, ## arg)
 #define e_err(msglvl, format, arg...) \
@@ -346,20 +346,20 @@ extern struct net_device *e1000_get_hw_dev(struct e1000_hw *hw);
 extern char e1000_driver_name[];
 extern const char e1000_driver_version[];
 
-extern int e1000_up(struct e1000_adapter *adapter);
-extern void e1000_down(struct e1000_adapter *adapter);
-extern void e1000_reinit_locked(struct e1000_adapter *adapter);
-extern void e1000_reset(struct e1000_adapter *adapter);
-extern int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx);
-extern int e1000_setup_all_rx_resources(struct e1000_adapter *adapter);
-extern int e1000_setup_all_tx_resources(struct e1000_adapter *adapter);
-extern void e1000_free_all_rx_resources(struct e1000_adapter *adapter);
-extern void e1000_free_all_tx_resources(struct e1000_adapter *adapter);
-extern void e1000_update_stats(struct e1000_adapter *adapter);
-extern bool e1000_has_link(struct e1000_adapter *adapter);
-extern void e1000_power_up_phy(struct e1000_adapter *);
-extern void e1000_set_ethtool_ops(struct net_device *netdev);
-extern void e1000_check_options(struct e1000_adapter *adapter);
-extern char *e1000_get_hw_dev_name(struct e1000_hw *hw);
+int e1000_up(struct e1000_adapter *adapter);
+void e1000_down(struct e1000_adapter *adapter);
+void e1000_reinit_locked(struct e1000_adapter *adapter);
+void e1000_reset(struct e1000_adapter *adapter);
+int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx);
+int e1000_setup_all_rx_resources(struct e1000_adapter *adapter);
+int e1000_setup_all_tx_resources(struct e1000_adapter *adapter);
+void e1000_free_all_rx_resources(struct e1000_adapter *adapter);
+void e1000_free_all_tx_resources(struct e1000_adapter *adapter);
+void e1000_update_stats(struct e1000_adapter *adapter);
+bool e1000_has_link(struct e1000_adapter *adapter);
+void e1000_power_up_phy(struct e1000_adapter *);
+void e1000_set_ethtool_ops(struct net_device *netdev);
+void e1000_check_options(struct e1000_adapter *adapter);
+char *e1000_get_hw_dev_name(struct e1000_hw *hw);
 
 #endif /* _E1000_H_ */
diff --git a/drivers/net/ethernet/intel/e1000e/e1000.h b/drivers/net/ethernet/intel/e1000e/e1000.h
index ad0edd11015d..0150f7fc893d 100644
--- a/drivers/net/ethernet/intel/e1000e/e1000.h
+++ b/drivers/net/ethernet/intel/e1000e/e1000.h
@@ -472,26 +472,25 @@ enum latency_range {
 extern char e1000e_driver_name[];
 extern const char e1000e_driver_version[];
 
-extern void e1000e_check_options(struct e1000_adapter *adapter);
-extern void e1000e_set_ethtool_ops(struct net_device *netdev);
-
-extern int e1000e_up(struct e1000_adapter *adapter);
-extern void e1000e_down(struct e1000_adapter *adapter);
-extern void e1000e_reinit_locked(struct e1000_adapter *adapter);
-extern void e1000e_reset(struct e1000_adapter *adapter);
-extern void e1000e_power_up_phy(struct e1000_adapter *adapter);
-extern int e1000e_setup_rx_resources(struct e1000_ring *ring);
-extern int e1000e_setup_tx_resources(struct e1000_ring *ring);
-extern void e1000e_free_rx_resources(struct e1000_ring *ring);
-extern void e1000e_free_tx_resources(struct e1000_ring *ring);
-extern struct rtnl_link_stats64 *e1000e_get_stats64(struct net_device *netdev,
-						    struct rtnl_link_stats64
-						    *stats);
-extern void e1000e_set_interrupt_capability(struct e1000_adapter *adapter);
-extern void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter);
-extern void e1000e_get_hw_control(struct e1000_adapter *adapter);
-extern void e1000e_release_hw_control(struct e1000_adapter *adapter);
-extern void e1000e_write_itr(struct e1000_adapter *adapter, u32 itr);
+void e1000e_check_options(struct e1000_adapter *adapter);
+void e1000e_set_ethtool_ops(struct net_device *netdev);
+
+int e1000e_up(struct e1000_adapter *adapter);
+void e1000e_down(struct e1000_adapter *adapter);
+void e1000e_reinit_locked(struct e1000_adapter *adapter);
+void e1000e_reset(struct e1000_adapter *adapter);
+void e1000e_power_up_phy(struct e1000_adapter *adapter);
+int e1000e_setup_rx_resources(struct e1000_ring *ring);
+int e1000e_setup_tx_resources(struct e1000_ring *ring);
+void e1000e_free_rx_resources(struct e1000_ring *ring);
+void e1000e_free_tx_resources(struct e1000_ring *ring);
+struct rtnl_link_stats64 *e1000e_get_stats64(struct net_device *netdev,
+					     struct rtnl_link_stats64 *stats);
+void e1000e_set_interrupt_capability(struct e1000_adapter *adapter);
+void e1000e_reset_interrupt_capability(struct e1000_adapter *adapter);
+void e1000e_get_hw_control(struct e1000_adapter *adapter);
+void e1000e_release_hw_control(struct e1000_adapter *adapter);
+void e1000e_write_itr(struct e1000_adapter *adapter, u32 itr);
 
 extern unsigned int copybreak;
 
@@ -508,8 +507,8 @@ extern const struct e1000_info e1000_pch2_info;
 extern const struct e1000_info e1000_pch_lpt_info;
 extern const struct e1000_info e1000_es2_info;
 
-extern void e1000e_ptp_init(struct e1000_adapter *adapter);
-extern void e1000e_ptp_remove(struct e1000_adapter *adapter);
+void e1000e_ptp_init(struct e1000_adapter *adapter);
+void e1000e_ptp_remove(struct e1000_adapter *adapter);
 
 static inline s32 e1000_phy_hw_reset(struct e1000_hw *hw)
 {
@@ -536,7 +535,7 @@ static inline s32 e1e_wphy_locked(struct e1000_hw *hw, u32 offset, u16 data)
 	return hw->phy.ops.write_reg_locked(hw, offset, data);
 }
 
-extern void e1000e_reload_nvm_generic(struct e1000_hw *hw);
+void e1000e_reload_nvm_generic(struct e1000_hw *hw);
 
 static inline s32 e1000e_read_mac_addr(struct e1000_hw *hw)
 {
diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.h b/drivers/net/ethernet/intel/igb/e1000_82575.h
index 74a1506b4235..8c2437722aad 100644
--- a/drivers/net/ethernet/intel/igb/e1000_82575.h
+++ b/drivers/net/ethernet/intel/igb/e1000_82575.h
@@ -28,14 +28,14 @@
 #ifndef _E1000_82575_H_
 #define _E1000_82575_H_
 
-extern void igb_shutdown_serdes_link_82575(struct e1000_hw *hw);
-extern void igb_power_up_serdes_link_82575(struct e1000_hw *hw);
-extern void igb_power_down_phy_copper_82575(struct e1000_hw *hw);
-extern void igb_rx_fifo_flush_82575(struct e1000_hw *hw);
-extern s32 igb_read_i2c_byte(struct e1000_hw *hw, u8 byte_offset,
-				u8 dev_addr, u8 *data);
-extern s32 igb_write_i2c_byte(struct e1000_hw *hw, u8 byte_offset,
-				 u8 dev_addr, u8 data);
+void igb_shutdown_serdes_link_82575(struct e1000_hw *hw);
+void igb_power_up_serdes_link_82575(struct e1000_hw *hw);
+void igb_power_down_phy_copper_82575(struct e1000_hw *hw);
+void igb_rx_fifo_flush_82575(struct e1000_hw *hw);
+s32 igb_read_i2c_byte(struct e1000_hw *hw, u8 byte_offset, u8 dev_addr,
+		      u8 *data);
+s32 igb_write_i2c_byte(struct e1000_hw *hw, u8 byte_offset, u8 dev_addr,
+		       u8 data);
 
 #define ID_LED_DEFAULT_82575_SERDES ((ID_LED_DEF1_DEF2 << 12) | \
                                      (ID_LED_DEF1_DEF2 <<  8) | \
diff --git a/drivers/net/ethernet/intel/igb/e1000_hw.h b/drivers/net/ethernet/intel/igb/e1000_hw.h
index 37a9c06a6c68..2e166b22d52b 100644
--- a/drivers/net/ethernet/intel/igb/e1000_hw.h
+++ b/drivers/net/ethernet/intel/igb/e1000_hw.h
@@ -562,11 +562,11 @@ struct e1000_hw {
 	u8  revision_id;
 };
 
-extern struct net_device *igb_get_hw_dev(struct e1000_hw *hw);
+struct net_device *igb_get_hw_dev(struct e1000_hw *hw);
 #define hw_dbg(format, arg...) \
 	netdev_dbg(igb_get_hw_dev(hw), format, ##arg)
 
 /* These functions must be implemented by drivers */
-s32  igb_read_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value);
-s32  igb_write_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value);
+s32 igb_read_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value);
+s32 igb_write_pcie_cap_reg(struct e1000_hw *hw, u32 reg, u16 *value);
 #endif /* _E1000_HW_H_ */
diff --git a/drivers/net/ethernet/intel/igb/e1000_i210.h b/drivers/net/ethernet/intel/igb/e1000_i210.h
index dde3c4b7ea99..2d913716573a 100644
--- a/drivers/net/ethernet/intel/igb/e1000_i210.h
+++ b/drivers/net/ethernet/intel/igb/e1000_i210.h
@@ -28,26 +28,24 @@
 #ifndef _E1000_I210_H_
 #define _E1000_I210_H_
 
-extern s32 igb_update_flash_i210(struct e1000_hw *hw);
-extern s32 igb_update_nvm_checksum_i210(struct e1000_hw *hw);
-extern s32 igb_validate_nvm_checksum_i210(struct e1000_hw *hw);
-extern s32 igb_write_nvm_srwr_i210(struct e1000_hw *hw, u16 offset,
-			      u16 words, u16 *data);
-extern s32 igb_read_nvm_srrd_i210(struct e1000_hw *hw, u16 offset,
-			     u16 words, u16 *data);
-extern s32 igb_acquire_swfw_sync_i210(struct e1000_hw *hw, u16 mask);
-extern void igb_release_swfw_sync_i210(struct e1000_hw *hw, u16 mask);
-extern s32 igb_acquire_nvm_i210(struct e1000_hw *hw);
-extern void igb_release_nvm_i210(struct e1000_hw *hw);
-extern s32 igb_valid_led_default_i210(struct e1000_hw *hw, u16 *data);
-extern s32 igb_read_invm_version(struct e1000_hw *hw,
-				 struct e1000_fw_version *invm_ver);
-extern s32 igb_read_xmdio_reg(struct e1000_hw *hw, u16 addr, u8 dev_addr,
-			      u16 *data);
-extern s32 igb_write_xmdio_reg(struct e1000_hw *hw, u16 addr, u8 dev_addr,
-			       u16 data);
-extern s32 igb_init_nvm_params_i210(struct e1000_hw *hw);
-extern bool igb_get_flash_presence_i210(struct e1000_hw *hw);
+s32 igb_update_flash_i210(struct e1000_hw *hw);
+s32 igb_update_nvm_checksum_i210(struct e1000_hw *hw);
+s32 igb_validate_nvm_checksum_i210(struct e1000_hw *hw);
+s32 igb_write_nvm_srwr_i210(struct e1000_hw *hw, u16 offset, u16 words,
+			    u16 *data);
+s32 igb_read_nvm_srrd_i210(struct e1000_hw *hw, u16 offset, u16 words,
+			   u16 *data);
+s32 igb_acquire_swfw_sync_i210(struct e1000_hw *hw, u16 mask);
+void igb_release_swfw_sync_i210(struct e1000_hw *hw, u16 mask);
+s32 igb_acquire_nvm_i210(struct e1000_hw *hw);
+void igb_release_nvm_i210(struct e1000_hw *hw);
+s32 igb_valid_led_default_i210(struct e1000_hw *hw, u16 *data);
+s32 igb_read_invm_version(struct e1000_hw *hw,
+			  struct e1000_fw_version *invm_ver);
+s32 igb_read_xmdio_reg(struct e1000_hw *hw, u16 addr, u8 dev_addr, u16 *data);
+s32 igb_write_xmdio_reg(struct e1000_hw *hw, u16 addr, u8 dev_addr, u16 data);
+s32 igb_init_nvm_params_i210(struct e1000_hw *hw);
+bool igb_get_flash_presence_i210(struct e1000_hw *hw);
 
 #define E1000_STM_OPCODE		0xDB00
 #define E1000_EEPROM_FLASH_SIZE_WORD	0x11
diff --git a/drivers/net/ethernet/intel/igb/e1000_mac.h b/drivers/net/ethernet/intel/igb/e1000_mac.h
index 5e13e83cc608..e4cbe8ef67b3 100644
--- a/drivers/net/ethernet/intel/igb/e1000_mac.h
+++ b/drivers/net/ethernet/intel/igb/e1000_mac.h
@@ -86,6 +86,6 @@ enum e1000_mng_mode {
 
 #define E1000_MNG_DHCP_COOKIE_STATUS_VLAN	0x2
 
-extern void e1000_init_function_pointers_82575(struct e1000_hw *hw);
+void e1000_init_function_pointers_82575(struct e1000_hw *hw);
 
 #endif
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h
index 6807b098edae..cdaa2bcefc4c 100644
--- a/drivers/net/ethernet/intel/igb/igb.h
+++ b/drivers/net/ethernet/intel/igb/igb.h
@@ -483,40 +483,37 @@ enum igb_boards {
 extern char igb_driver_name[];
 extern char igb_driver_version[];
 
-extern int igb_up(struct igb_adapter *);
-extern void igb_down(struct igb_adapter *);
-extern void igb_reinit_locked(struct igb_adapter *);
-extern void igb_reset(struct igb_adapter *);
-extern void igb_write_rss_indir_tbl(struct igb_adapter *);
-extern int igb_set_spd_dplx(struct igb_adapter *, u32, u8);
-extern int igb_setup_tx_resources(struct igb_ring *);
-extern int igb_setup_rx_resources(struct igb_ring *);
-extern void igb_free_tx_resources(struct igb_ring *);
-extern void igb_free_rx_resources(struct igb_ring *);
-extern void igb_configure_tx_ring(struct igb_adapter *, struct igb_ring *);
-extern void igb_configure_rx_ring(struct igb_adapter *, struct igb_ring *);
-extern void igb_setup_tctl(struct igb_adapter *);
-extern void igb_setup_rctl(struct igb_adapter *);
-extern netdev_tx_t igb_xmit_frame_ring(struct sk_buff *, struct igb_ring *);
-extern void igb_unmap_and_free_tx_resource(struct igb_ring *,
-					   struct igb_tx_buffer *);
-extern void igb_alloc_rx_buffers(struct igb_ring *, u16);
-extern void igb_update_stats(struct igb_adapter *, struct rtnl_link_stats64 *);
-extern bool igb_has_link(struct igb_adapter *adapter);
-extern void igb_set_ethtool_ops(struct net_device *);
-extern void igb_power_up_link(struct igb_adapter *);
-extern void igb_set_fw_version(struct igb_adapter *);
-extern void igb_ptp_init(struct igb_adapter *adapter);
-extern void igb_ptp_stop(struct igb_adapter *adapter);
-extern void igb_ptp_reset(struct igb_adapter *adapter);
-extern void igb_ptp_tx_work(struct work_struct *work);
-extern void igb_ptp_rx_hang(struct igb_adapter *adapter);
-extern void igb_ptp_tx_hwtstamp(struct igb_adapter *adapter);
-extern void igb_ptp_rx_rgtstamp(struct igb_q_vector *q_vector,
-				struct sk_buff *skb);
-extern void igb_ptp_rx_pktstamp(struct igb_q_vector *q_vector,
-				unsigned char *va,
-				struct sk_buff *skb);
+int igb_up(struct igb_adapter *);
+void igb_down(struct igb_adapter *);
+void igb_reinit_locked(struct igb_adapter *);
+void igb_reset(struct igb_adapter *);
+void igb_write_rss_indir_tbl(struct igb_adapter *);
+int igb_set_spd_dplx(struct igb_adapter *, u32, u8);
+int igb_setup_tx_resources(struct igb_ring *);
+int igb_setup_rx_resources(struct igb_ring *);
+void igb_free_tx_resources(struct igb_ring *);
+void igb_free_rx_resources(struct igb_ring *);
+void igb_configure_tx_ring(struct igb_adapter *, struct igb_ring *);
+void igb_configure_rx_ring(struct igb_adapter *, struct igb_ring *);
+void igb_setup_tctl(struct igb_adapter *);
+void igb_setup_rctl(struct igb_adapter *);
+netdev_tx_t igb_xmit_frame_ring(struct sk_buff *, struct igb_ring *);
+void igb_unmap_and_free_tx_resource(struct igb_ring *, struct igb_tx_buffer *);
+void igb_alloc_rx_buffers(struct igb_ring *, u16);
+void igb_update_stats(struct igb_adapter *, struct rtnl_link_stats64 *);
+bool igb_has_link(struct igb_adapter *adapter);
+void igb_set_ethtool_ops(struct net_device *);
+void igb_power_up_link(struct igb_adapter *);
+void igb_set_fw_version(struct igb_adapter *);
+void igb_ptp_init(struct igb_adapter *adapter);
+void igb_ptp_stop(struct igb_adapter *adapter);
+void igb_ptp_reset(struct igb_adapter *adapter);
+void igb_ptp_tx_work(struct work_struct *work);
+void igb_ptp_rx_hang(struct igb_adapter *adapter);
+void igb_ptp_tx_hwtstamp(struct igb_adapter *adapter);
+void igb_ptp_rx_rgtstamp(struct igb_q_vector *q_vector, struct sk_buff *skb);
+void igb_ptp_rx_pktstamp(struct igb_q_vector *q_vector, unsigned char *va,
+			 struct sk_buff *skb);
 static inline void igb_ptp_rx_hwtstamp(struct igb_ring *rx_ring,
 				       union e1000_adv_rx_desc *rx_desc,
 				       struct sk_buff *skb)
@@ -531,11 +528,11 @@ static inline void igb_ptp_rx_hwtstamp(struct igb_ring *rx_ring,
 	rx_ring->last_rx_timestamp = jiffies;
 }
 
-extern int igb_ptp_hwtstamp_ioctl(struct net_device *netdev,
-				  struct ifreq *ifr, int cmd);
+int igb_ptp_hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr,
+			   int cmd);
 #ifdef CONFIG_IGB_HWMON
-extern void igb_sysfs_exit(struct igb_adapter *adapter);
-extern int igb_sysfs_init(struct igb_adapter *adapter);
+void igb_sysfs_exit(struct igb_adapter *adapter);
+int igb_sysfs_init(struct igb_adapter *adapter);
 #endif
 static inline s32 igb_reset_phy(struct e1000_hw *hw)
 {
diff --git a/drivers/net/ethernet/intel/igbvf/igbvf.h b/drivers/net/ethernet/intel/igbvf/igbvf.h
index a1463e3d14c0..7d6a25c8f889 100644
--- a/drivers/net/ethernet/intel/igbvf/igbvf.h
+++ b/drivers/net/ethernet/intel/igbvf/igbvf.h
@@ -312,17 +312,17 @@ enum igbvf_state_t {
 extern char igbvf_driver_name[];
 extern const char igbvf_driver_version[];
 
-extern void igbvf_check_options(struct igbvf_adapter *);
-extern void igbvf_set_ethtool_ops(struct net_device *);
-
-extern int igbvf_up(struct igbvf_adapter *);
-extern void igbvf_down(struct igbvf_adapter *);
-extern void igbvf_reinit_locked(struct igbvf_adapter *);
-extern int igbvf_setup_rx_resources(struct igbvf_adapter *, struct igbvf_ring *);
-extern int igbvf_setup_tx_resources(struct igbvf_adapter *, struct igbvf_ring *);
-extern void igbvf_free_rx_resources(struct igbvf_ring *);
-extern void igbvf_free_tx_resources(struct igbvf_ring *);
-extern void igbvf_update_stats(struct igbvf_adapter *);
+void igbvf_check_options(struct igbvf_adapter *);
+void igbvf_set_ethtool_ops(struct net_device *);
+
+int igbvf_up(struct igbvf_adapter *);
+void igbvf_down(struct igbvf_adapter *);
+void igbvf_reinit_locked(struct igbvf_adapter *);
+int igbvf_setup_rx_resources(struct igbvf_adapter *, struct igbvf_ring *);
+int igbvf_setup_tx_resources(struct igbvf_adapter *, struct igbvf_ring *);
+void igbvf_free_rx_resources(struct igbvf_ring *);
+void igbvf_free_tx_resources(struct igbvf_ring *);
+void igbvf_update_stats(struct igbvf_adapter *);
 
 extern unsigned int copybreak;
 
diff --git a/drivers/net/ethernet/intel/ixgb/ixgb.h b/drivers/net/ethernet/intel/ixgb/ixgb.h
index 4d2ae97ff1b3..2224cc2edf13 100644
--- a/drivers/net/ethernet/intel/ixgb/ixgb.h
+++ b/drivers/net/ethernet/intel/ixgb/ixgb.h
@@ -187,21 +187,21 @@ enum ixgb_state_t {
 };
 
 /* Exported from other modules */
-extern void ixgb_check_options(struct ixgb_adapter *adapter);
-extern void ixgb_set_ethtool_ops(struct net_device *netdev);
+void ixgb_check_options(struct ixgb_adapter *adapter);
+void ixgb_set_ethtool_ops(struct net_device *netdev);
 extern char ixgb_driver_name[];
 extern const char ixgb_driver_version[];
 
-extern void ixgb_set_speed_duplex(struct net_device *netdev);
+void ixgb_set_speed_duplex(struct net_device *netdev);
 
-extern int ixgb_up(struct ixgb_adapter *adapter);
-extern void ixgb_down(struct ixgb_adapter *adapter, bool kill_watchdog);
-extern void ixgb_reset(struct ixgb_adapter *adapter);
-extern int ixgb_setup_rx_resources(struct ixgb_adapter *adapter);
-extern int ixgb_setup_tx_resources(struct ixgb_adapter *adapter);
-extern void ixgb_free_rx_resources(struct ixgb_adapter *adapter);
-extern void ixgb_free_tx_resources(struct ixgb_adapter *adapter);
-extern void ixgb_update_stats(struct ixgb_adapter *adapter);
+int ixgb_up(struct ixgb_adapter *adapter);
+void ixgb_down(struct ixgb_adapter *adapter, bool kill_watchdog);
+void ixgb_reset(struct ixgb_adapter *adapter);
+int ixgb_setup_rx_resources(struct ixgb_adapter *adapter);
+int ixgb_setup_tx_resources(struct ixgb_adapter *adapter);
+void ixgb_free_rx_resources(struct ixgb_adapter *adapter);
+void ixgb_free_tx_resources(struct ixgb_adapter *adapter);
+void ixgb_update_stats(struct ixgb_adapter *adapter);
 
 
 #endif /* _IXGB_H_ */
diff --git a/drivers/net/ethernet/intel/ixgb/ixgb_hw.h b/drivers/net/ethernet/intel/ixgb/ixgb_hw.h
index 2a99a35c33aa..0bd5d72e1af5 100644
--- a/drivers/net/ethernet/intel/ixgb/ixgb_hw.h
+++ b/drivers/net/ethernet/intel/ixgb/ixgb_hw.h
@@ -759,27 +759,20 @@ struct ixgb_hw_stats {
 };
 
 /* Function Prototypes */
-extern bool ixgb_adapter_stop(struct ixgb_hw *hw);
-extern bool ixgb_init_hw(struct ixgb_hw *hw);
-extern bool ixgb_adapter_start(struct ixgb_hw *hw);
-extern void ixgb_check_for_link(struct ixgb_hw *hw);
-extern bool ixgb_check_for_bad_link(struct ixgb_hw *hw);
-
-extern void ixgb_rar_set(struct ixgb_hw *hw,
-				u8 *addr,
-				u32 index);
+bool ixgb_adapter_stop(struct ixgb_hw *hw);
+bool ixgb_init_hw(struct ixgb_hw *hw);
+bool ixgb_adapter_start(struct ixgb_hw *hw);
+void ixgb_check_for_link(struct ixgb_hw *hw);
+bool ixgb_check_for_bad_link(struct ixgb_hw *hw);
 
+void ixgb_rar_set(struct ixgb_hw *hw, u8 *addr, u32 index);
 
 /* Filters (multicast, vlan, receive) */
-extern void ixgb_mc_addr_list_update(struct ixgb_hw *hw,
-				   u8 *mc_addr_list,
-				   u32 mc_addr_count,
-				   u32 pad);
+void ixgb_mc_addr_list_update(struct ixgb_hw *hw, u8 *mc_addr_list,
+			      u32 mc_addr_count, u32 pad);
 
 /* Vfta functions */
-extern void ixgb_write_vfta(struct ixgb_hw *hw,
-				 u32 offset,
-				 u32 value);
+void ixgb_write_vfta(struct ixgb_hw *hw, u32 offset, u32 value);
 
 /* Access functions to eeprom data */
 void ixgb_get_ee_mac_addr(struct ixgb_hw *hw, u8 *mac_addr);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index 0ac6b11c6e4e..3637841daea4 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -786,93 +786,89 @@ extern const char ixgbe_driver_version[];
 extern char ixgbe_default_device_descr[];
 #endif /* IXGBE_FCOE */
 
-extern void ixgbe_up(struct ixgbe_adapter *adapter);
-extern void ixgbe_down(struct ixgbe_adapter *adapter);
-extern void ixgbe_reinit_locked(struct ixgbe_adapter *adapter);
-extern void ixgbe_reset(struct ixgbe_adapter *adapter);
-extern void ixgbe_set_ethtool_ops(struct net_device *netdev);
-extern int ixgbe_setup_rx_resources(struct ixgbe_ring *);
-extern int ixgbe_setup_tx_resources(struct ixgbe_ring *);
-extern void ixgbe_free_rx_resources(struct ixgbe_ring *);
-extern void ixgbe_free_tx_resources(struct ixgbe_ring *);
-extern void ixgbe_configure_rx_ring(struct ixgbe_adapter *,struct ixgbe_ring *);
-extern void ixgbe_configure_tx_ring(struct ixgbe_adapter *,struct ixgbe_ring *);
-extern void ixgbe_disable_rx_queue(struct ixgbe_adapter *adapter,
-				   struct ixgbe_ring *);
-extern void ixgbe_update_stats(struct ixgbe_adapter *adapter);
-extern int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter);
-extern int ixgbe_wol_supported(struct ixgbe_adapter *adapter, u16 device_id,
+void ixgbe_up(struct ixgbe_adapter *adapter);
+void ixgbe_down(struct ixgbe_adapter *adapter);
+void ixgbe_reinit_locked(struct ixgbe_adapter *adapter);
+void ixgbe_reset(struct ixgbe_adapter *adapter);
+void ixgbe_set_ethtool_ops(struct net_device *netdev);
+int ixgbe_setup_rx_resources(struct ixgbe_ring *);
+int ixgbe_setup_tx_resources(struct ixgbe_ring *);
+void ixgbe_free_rx_resources(struct ixgbe_ring *);
+void ixgbe_free_tx_resources(struct ixgbe_ring *);
+void ixgbe_configure_rx_ring(struct ixgbe_adapter *, struct ixgbe_ring *);
+void ixgbe_configure_tx_ring(struct ixgbe_adapter *, struct ixgbe_ring *);
+void ixgbe_disable_rx_queue(struct ixgbe_adapter *adapter, struct ixgbe_ring *);
+void ixgbe_update_stats(struct ixgbe_adapter *adapter);
+int ixgbe_init_interrupt_scheme(struct ixgbe_adapter *adapter);
+int ixgbe_wol_supported(struct ixgbe_adapter *adapter, u16 device_id,
 			       u16 subdevice_id);
-extern void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter);
-extern netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *,
-					 struct ixgbe_adapter *,
-					 struct ixgbe_ring *);
-extern void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *,
-                                             struct ixgbe_tx_buffer *);
-extern void ixgbe_alloc_rx_buffers(struct ixgbe_ring *, u16);
-extern void ixgbe_write_eitr(struct ixgbe_q_vector *);
-extern int ixgbe_poll(struct napi_struct *napi, int budget);
-extern int ethtool_ioctl(struct ifreq *ifr);
-extern s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw);
-extern s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl);
-extern s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl);
-extern s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
-						 union ixgbe_atr_hash_dword input,
-						 union ixgbe_atr_hash_dword common,
-                                                 u8 queue);
-extern s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
-					   union ixgbe_atr_input *input_mask);
-extern s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
-						 union ixgbe_atr_input *input,
-						 u16 soft_id, u8 queue);
-extern s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
-						 union ixgbe_atr_input *input,
-						 u16 soft_id);
-extern void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
-						 union ixgbe_atr_input *mask);
-extern bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw);
-extern void ixgbe_set_rx_mode(struct net_device *netdev);
+void ixgbe_clear_interrupt_scheme(struct ixgbe_adapter *adapter);
+netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *, struct ixgbe_adapter *,
+				  struct ixgbe_ring *);
+void ixgbe_unmap_and_free_tx_resource(struct ixgbe_ring *,
+				      struct ixgbe_tx_buffer *);
+void ixgbe_alloc_rx_buffers(struct ixgbe_ring *, u16);
+void ixgbe_write_eitr(struct ixgbe_q_vector *);
+int ixgbe_poll(struct napi_struct *napi, int budget);
+int ethtool_ioctl(struct ifreq *ifr);
+s32 ixgbe_reinit_fdir_tables_82599(struct ixgbe_hw *hw);
+s32 ixgbe_init_fdir_signature_82599(struct ixgbe_hw *hw, u32 fdirctrl);
+s32 ixgbe_init_fdir_perfect_82599(struct ixgbe_hw *hw, u32 fdirctrl);
+s32 ixgbe_fdir_add_signature_filter_82599(struct ixgbe_hw *hw,
+					  union ixgbe_atr_hash_dword input,
+					  union ixgbe_atr_hash_dword common,
+					  u8 queue);
+s32 ixgbe_fdir_set_input_mask_82599(struct ixgbe_hw *hw,
+				    union ixgbe_atr_input *input_mask);
+s32 ixgbe_fdir_write_perfect_filter_82599(struct ixgbe_hw *hw,
+					  union ixgbe_atr_input *input,
+					  u16 soft_id, u8 queue);
+s32 ixgbe_fdir_erase_perfect_filter_82599(struct ixgbe_hw *hw,
+					  union ixgbe_atr_input *input,
+					  u16 soft_id);
+void ixgbe_atr_compute_perfect_hash_82599(union ixgbe_atr_input *input,
+					  union ixgbe_atr_input *mask);
+bool ixgbe_verify_lesm_fw_enabled_82599(struct ixgbe_hw *hw);
+void ixgbe_set_rx_mode(struct net_device *netdev);
 #ifdef CONFIG_IXGBE_DCB
-extern void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter);
+void ixgbe_set_rx_drop_en(struct ixgbe_adapter *adapter);
 #endif
-extern int ixgbe_setup_tc(struct net_device *dev, u8 tc);
-extern void ixgbe_tx_ctxtdesc(struct ixgbe_ring *, u32, u32, u32, u32);
-extern void ixgbe_do_reset(struct net_device *netdev);
+int ixgbe_setup_tc(struct net_device *dev, u8 tc);
+void ixgbe_tx_ctxtdesc(struct ixgbe_ring *, u32, u32, u32, u32);
+void ixgbe_do_reset(struct net_device *netdev);
 #ifdef CONFIG_IXGBE_HWMON
-extern void ixgbe_sysfs_exit(struct ixgbe_adapter *adapter);
-extern int ixgbe_sysfs_init(struct ixgbe_adapter *adapter);
+void ixgbe_sysfs_exit(struct ixgbe_adapter *adapter);
+int ixgbe_sysfs_init(struct ixgbe_adapter *adapter);
 #endif /* CONFIG_IXGBE_HWMON */
 #ifdef IXGBE_FCOE
-extern void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter);
-extern int ixgbe_fso(struct ixgbe_ring *tx_ring,
-		     struct ixgbe_tx_buffer *first,
-		     u8 *hdr_len);
-extern int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter,
-			  union ixgbe_adv_rx_desc *rx_desc,
-			  struct sk_buff *skb);
-extern int ixgbe_fcoe_ddp_get(struct net_device *netdev, u16 xid,
-                              struct scatterlist *sgl, unsigned int sgc);
-extern int ixgbe_fcoe_ddp_target(struct net_device *netdev, u16 xid,
-				 struct scatterlist *sgl, unsigned int sgc);
-extern int ixgbe_fcoe_ddp_put(struct net_device *netdev, u16 xid);
-extern int ixgbe_setup_fcoe_ddp_resources(struct ixgbe_adapter *adapter);
-extern void ixgbe_free_fcoe_ddp_resources(struct ixgbe_adapter *adapter);
-extern int ixgbe_fcoe_enable(struct net_device *netdev);
-extern int ixgbe_fcoe_disable(struct net_device *netdev);
+void ixgbe_configure_fcoe(struct ixgbe_adapter *adapter);
+int ixgbe_fso(struct ixgbe_ring *tx_ring, struct ixgbe_tx_buffer *first,
+	      u8 *hdr_len);
+int ixgbe_fcoe_ddp(struct ixgbe_adapter *adapter,
+		   union ixgbe_adv_rx_desc *rx_desc, struct sk_buff *skb);
+int ixgbe_fcoe_ddp_get(struct net_device *netdev, u16 xid,
+		       struct scatterlist *sgl, unsigned int sgc);
+int ixgbe_fcoe_ddp_target(struct net_device *netdev, u16 xid,
+			  struct scatterlist *sgl, unsigned int sgc);
+int ixgbe_fcoe_ddp_put(struct net_device *netdev, u16 xid);
+int ixgbe_setup_fcoe_ddp_resources(struct ixgbe_adapter *adapter);
+void ixgbe_free_fcoe_ddp_resources(struct ixgbe_adapter *adapter);
+int ixgbe_fcoe_enable(struct net_device *netdev);
+int ixgbe_fcoe_disable(struct net_device *netdev);
 #ifdef CONFIG_IXGBE_DCB
-extern u8 ixgbe_fcoe_getapp(struct ixgbe_adapter *adapter);
-extern u8 ixgbe_fcoe_setapp(struct ixgbe_adapter *adapter, u8 up);
+u8 ixgbe_fcoe_getapp(struct ixgbe_adapter *adapter);
+u8 ixgbe_fcoe_setapp(struct ixgbe_adapter *adapter, u8 up);
 #endif /* CONFIG_IXGBE_DCB */
-extern int ixgbe_fcoe_get_wwn(struct net_device *netdev, u64 *wwn, int type);
-extern int ixgbe_fcoe_get_hbainfo(struct net_device *netdev,
-				  struct netdev_fcoe_hbainfo *info);
-extern u8 ixgbe_fcoe_get_tc(struct ixgbe_adapter *adapter);
+int ixgbe_fcoe_get_wwn(struct net_device *netdev, u64 *wwn, int type);
+int ixgbe_fcoe_get_hbainfo(struct net_device *netdev,
+			   struct netdev_fcoe_hbainfo *info);
+u8 ixgbe_fcoe_get_tc(struct ixgbe_adapter *adapter);
 #endif /* IXGBE_FCOE */
 #ifdef CONFIG_DEBUG_FS
-extern void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter);
-extern void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter);
-extern void ixgbe_dbg_init(void);
-extern void ixgbe_dbg_exit(void);
+void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter);
+void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter);
+void ixgbe_dbg_init(void);
+void ixgbe_dbg_exit(void);
 #else
 static inline void ixgbe_dbg_adapter_init(struct ixgbe_adapter *adapter) {}
 static inline void ixgbe_dbg_adapter_exit(struct ixgbe_adapter *adapter) {}
@@ -884,12 +880,12 @@ static inline struct netdev_queue *txring_txq(const struct ixgbe_ring *ring)
 	return netdev_get_tx_queue(ring->netdev, ring->queue_index);
 }
 
-extern void ixgbe_ptp_init(struct ixgbe_adapter *adapter);
-extern void ixgbe_ptp_stop(struct ixgbe_adapter *adapter);
-extern void ixgbe_ptp_overflow_check(struct ixgbe_adapter *adapter);
-extern void ixgbe_ptp_rx_hang(struct ixgbe_adapter *adapter);
-extern void __ixgbe_ptp_rx_hwtstamp(struct ixgbe_q_vector *q_vector,
-				    struct sk_buff *skb);
+void ixgbe_ptp_init(struct ixgbe_adapter *adapter);
+void ixgbe_ptp_stop(struct ixgbe_adapter *adapter);
+void ixgbe_ptp_overflow_check(struct ixgbe_adapter *adapter);
+void ixgbe_ptp_rx_hang(struct ixgbe_adapter *adapter);
+void __ixgbe_ptp_rx_hwtstamp(struct ixgbe_q_vector *q_vector,
+			     struct sk_buff *skb);
 static inline void ixgbe_ptp_rx_hwtstamp(struct ixgbe_ring *rx_ring,
 					 union ixgbe_adv_rx_desc *rx_desc,
 					 struct sk_buff *skb)
@@ -906,11 +902,11 @@ static inline void ixgbe_ptp_rx_hwtstamp(struct ixgbe_ring *rx_ring,
 	rx_ring->last_rx_timestamp = jiffies;
 }
 
-extern int ixgbe_ptp_hwtstamp_ioctl(struct ixgbe_adapter *adapter,
-				    struct ifreq *ifr, int cmd);
-extern void ixgbe_ptp_start_cyclecounter(struct ixgbe_adapter *adapter);
-extern void ixgbe_ptp_reset(struct ixgbe_adapter *adapter);
-extern void ixgbe_ptp_check_pps_event(struct ixgbe_adapter *adapter, u32 eicr);
+int ixgbe_ptp_hwtstamp_ioctl(struct ixgbe_adapter *adapter, struct ifreq *ifr,
+			     int cmd);
+void ixgbe_ptp_start_cyclecounter(struct ixgbe_adapter *adapter);
+void ixgbe_ptp_reset(struct ixgbe_adapter *adapter);
+void ixgbe_ptp_check_pps_event(struct ixgbe_adapter *adapter, u32 eicr);
 #ifdef CONFIG_PCI_IOV
 void ixgbe_sriov_reinit(struct ixgbe_adapter *adapter);
 #endif
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
index fff0d9867529..64a2b912e73c 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
@@ -281,27 +281,23 @@ extern const struct ixgbe_mbx_operations ixgbevf_mbx_ops;
 extern const char ixgbevf_driver_name[];
 extern const char ixgbevf_driver_version[];
 
-extern void ixgbevf_up(struct ixgbevf_adapter *adapter);
-extern void ixgbevf_down(struct ixgbevf_adapter *adapter);
-extern void ixgbevf_reinit_locked(struct ixgbevf_adapter *adapter);
-extern void ixgbevf_reset(struct ixgbevf_adapter *adapter);
-extern void ixgbevf_set_ethtool_ops(struct net_device *netdev);
-extern int ixgbevf_setup_rx_resources(struct ixgbevf_adapter *,
-				      struct ixgbevf_ring *);
-extern int ixgbevf_setup_tx_resources(struct ixgbevf_adapter *,
-				      struct ixgbevf_ring *);
-extern void ixgbevf_free_rx_resources(struct ixgbevf_adapter *,
-				      struct ixgbevf_ring *);
-extern void ixgbevf_free_tx_resources(struct ixgbevf_adapter *,
-				      struct ixgbevf_ring *);
-extern void ixgbevf_update_stats(struct ixgbevf_adapter *adapter);
-extern int ethtool_ioctl(struct ifreq *ifr);
-
-extern void ixgbe_napi_add_all(struct ixgbevf_adapter *adapter);
-extern void ixgbe_napi_del_all(struct ixgbevf_adapter *adapter);
+void ixgbevf_up(struct ixgbevf_adapter *adapter);
+void ixgbevf_down(struct ixgbevf_adapter *adapter);
+void ixgbevf_reinit_locked(struct ixgbevf_adapter *adapter);
+void ixgbevf_reset(struct ixgbevf_adapter *adapter);
+void ixgbevf_set_ethtool_ops(struct net_device *netdev);
+int ixgbevf_setup_rx_resources(struct ixgbevf_adapter *, struct ixgbevf_ring *);
+int ixgbevf_setup_tx_resources(struct ixgbevf_adapter *, struct ixgbevf_ring *);
+void ixgbevf_free_rx_resources(struct ixgbevf_adapter *, struct ixgbevf_ring *);
+void ixgbevf_free_tx_resources(struct ixgbevf_adapter *, struct ixgbevf_ring *);
+void ixgbevf_update_stats(struct ixgbevf_adapter *adapter);
+int ethtool_ioctl(struct ifreq *ifr);
+
+void ixgbe_napi_add_all(struct ixgbevf_adapter *adapter);
+void ixgbe_napi_del_all(struct ixgbevf_adapter *adapter);
 
 #ifdef DEBUG
-extern char *ixgbevf_get_hw_dev_name(struct ixgbe_hw *hw);
+char *ixgbevf_get_hw_dev_name(struct ixgbe_hw *hw);
 #define hw_dbg(hw, format, arg...) \
 	printk(KERN_DEBUG "%s: " format, ixgbevf_get_hw_dev_name(hw), ##arg)
 #else
-- 
cgit 


From f4588c4d5ded222ed2afb06bcec88c9b57597b1f Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: oki-semi: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h | 56 ++++++++++++-------------
 1 file changed, 28 insertions(+), 28 deletions(-)

diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h
index 6797b1075874..2a9003071d51 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.h
@@ -653,38 +653,38 @@ struct pch_gbe_adapter {
 extern const char pch_driver_version[];
 
 /* pch_gbe_main.c */
-extern int pch_gbe_up(struct pch_gbe_adapter *adapter);
-extern void pch_gbe_down(struct pch_gbe_adapter *adapter);
-extern void pch_gbe_reinit_locked(struct pch_gbe_adapter *adapter);
-extern void pch_gbe_reset(struct pch_gbe_adapter *adapter);
-extern int pch_gbe_setup_tx_resources(struct pch_gbe_adapter *adapter,
-				       struct pch_gbe_tx_ring *txdr);
-extern int pch_gbe_setup_rx_resources(struct pch_gbe_adapter *adapter,
-				       struct pch_gbe_rx_ring *rxdr);
-extern void pch_gbe_free_tx_resources(struct pch_gbe_adapter *adapter,
-				       struct pch_gbe_tx_ring *tx_ring);
-extern void pch_gbe_free_rx_resources(struct pch_gbe_adapter *adapter,
-				       struct pch_gbe_rx_ring *rx_ring);
-extern void pch_gbe_update_stats(struct pch_gbe_adapter *adapter);
-extern u32 pch_ch_control_read(struct pci_dev *pdev);
-extern void pch_ch_control_write(struct pci_dev *pdev, u32 val);
-extern u32 pch_ch_event_read(struct pci_dev *pdev);
-extern void pch_ch_event_write(struct pci_dev *pdev, u32 val);
-extern u32 pch_src_uuid_lo_read(struct pci_dev *pdev);
-extern u32 pch_src_uuid_hi_read(struct pci_dev *pdev);
-extern u64 pch_rx_snap_read(struct pci_dev *pdev);
-extern u64 pch_tx_snap_read(struct pci_dev *pdev);
-extern int pch_set_station_address(u8 *addr, struct pci_dev *pdev);
+int pch_gbe_up(struct pch_gbe_adapter *adapter);
+void pch_gbe_down(struct pch_gbe_adapter *adapter);
+void pch_gbe_reinit_locked(struct pch_gbe_adapter *adapter);
+void pch_gbe_reset(struct pch_gbe_adapter *adapter);
+int pch_gbe_setup_tx_resources(struct pch_gbe_adapter *adapter,
+			       struct pch_gbe_tx_ring *txdr);
+int pch_gbe_setup_rx_resources(struct pch_gbe_adapter *adapter,
+			       struct pch_gbe_rx_ring *rxdr);
+void pch_gbe_free_tx_resources(struct pch_gbe_adapter *adapter,
+			       struct pch_gbe_tx_ring *tx_ring);
+void pch_gbe_free_rx_resources(struct pch_gbe_adapter *adapter,
+			       struct pch_gbe_rx_ring *rx_ring);
+void pch_gbe_update_stats(struct pch_gbe_adapter *adapter);
+u32 pch_ch_control_read(struct pci_dev *pdev);
+void pch_ch_control_write(struct pci_dev *pdev, u32 val);
+u32 pch_ch_event_read(struct pci_dev *pdev);
+void pch_ch_event_write(struct pci_dev *pdev, u32 val);
+u32 pch_src_uuid_lo_read(struct pci_dev *pdev);
+u32 pch_src_uuid_hi_read(struct pci_dev *pdev);
+u64 pch_rx_snap_read(struct pci_dev *pdev);
+u64 pch_tx_snap_read(struct pci_dev *pdev);
+int pch_set_station_address(u8 *addr, struct pci_dev *pdev);
 
 /* pch_gbe_param.c */
-extern void pch_gbe_check_options(struct pch_gbe_adapter *adapter);
+void pch_gbe_check_options(struct pch_gbe_adapter *adapter);
 
 /* pch_gbe_ethtool.c */
-extern void pch_gbe_set_ethtool_ops(struct net_device *netdev);
+void pch_gbe_set_ethtool_ops(struct net_device *netdev);
 
 /* pch_gbe_mac.c */
-extern s32 pch_gbe_mac_force_mac_fc(struct pch_gbe_hw *hw);
-extern s32 pch_gbe_mac_read_mac_addr(struct pch_gbe_hw *hw);
-extern u16 pch_gbe_mac_ctrl_miim(struct pch_gbe_hw *hw,
-				  u32 addr, u32 dir, u32 reg, u16 data);
+s32 pch_gbe_mac_force_mac_fc(struct pch_gbe_hw *hw);
+s32 pch_gbe_mac_read_mac_addr(struct pch_gbe_hw *hw);
+u16 pch_gbe_mac_ctrl_miim(struct pch_gbe_hw *hw, u32 addr, u32 dir, u32 reg,
+			  u16 data);
 #endif /* _PCH_GBE_H_ */
-- 
cgit 


From 8a1a0ae11cbf80cacee40abc9af8a8ef16aaaf36 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: qlogic: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/ethernet/qlogic/netxen/netxen_nic.h |  5 +--
 drivers/net/ethernet/qlogic/qlge/qlge.h         | 58 ++++++++++++-------------
 2 files changed, 30 insertions(+), 33 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic.h b/drivers/net/ethernet/qlogic/netxen/netxen_nic.h
index 32675e16021e..e8eff3e269e4 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic.h
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic.h
@@ -1883,9 +1883,8 @@ static inline u32 netxen_tx_avail(struct nx_host_tx_ring *tx_ring)
 
 int netxen_get_flash_mac_addr(struct netxen_adapter *adapter, u64 *mac);
 int netxen_p3_get_mac_addr(struct netxen_adapter *adapter, u64 *mac);
-extern void netxen_change_ringparam(struct netxen_adapter *adapter);
-extern int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr,
-				int *valp);
+void netxen_change_ringparam(struct netxen_adapter *adapter);
+int netxen_rom_fast_read(struct netxen_adapter *adapter, int addr, int *valp);
 
 extern const struct ethtool_ops netxen_nic_ethtool_ops;
 
diff --git a/drivers/net/ethernet/qlogic/qlge/qlge.h b/drivers/net/ethernet/qlogic/qlge/qlge.h
index 899433778466..cc62272d485b 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge.h
+++ b/drivers/net/ethernet/qlogic/qlge/qlge.h
@@ -2206,14 +2206,14 @@ extern char qlge_driver_name[];
 extern const char qlge_driver_version[];
 extern const struct ethtool_ops qlge_ethtool_ops;
 
-extern int ql_sem_spinlock(struct ql_adapter *qdev, u32 sem_mask);
-extern void ql_sem_unlock(struct ql_adapter *qdev, u32 sem_mask);
-extern int ql_read_xgmac_reg(struct ql_adapter *qdev, u32 reg, u32 *data);
-extern int ql_get_mac_addr_reg(struct ql_adapter *qdev, u32 type, u16 index,
-			       u32 *value);
-extern int ql_get_routing_reg(struct ql_adapter *qdev, u32 index, u32 *value);
-extern int ql_write_cfg(struct ql_adapter *qdev, void *ptr, int size, u32 bit,
-			u16 q_id);
+int ql_sem_spinlock(struct ql_adapter *qdev, u32 sem_mask);
+void ql_sem_unlock(struct ql_adapter *qdev, u32 sem_mask);
+int ql_read_xgmac_reg(struct ql_adapter *qdev, u32 reg, u32 *data);
+int ql_get_mac_addr_reg(struct ql_adapter *qdev, u32 type, u16 index,
+			u32 *value);
+int ql_get_routing_reg(struct ql_adapter *qdev, u32 index, u32 *value);
+int ql_write_cfg(struct ql_adapter *qdev, void *ptr, int size, u32 bit,
+		 u16 q_id);
 void ql_queue_fw_error(struct ql_adapter *qdev);
 void ql_mpi_work(struct work_struct *work);
 void ql_mpi_reset_work(struct work_struct *work);
@@ -2233,10 +2233,9 @@ int ql_unpause_mpi_risc(struct ql_adapter *qdev);
 int ql_pause_mpi_risc(struct ql_adapter *qdev);
 int ql_hard_reset_mpi_risc(struct ql_adapter *qdev);
 int ql_soft_reset_mpi_risc(struct ql_adapter *qdev);
-int ql_dump_risc_ram_area(struct ql_adapter *qdev, void *buf,
-		u32 ram_addr, int word_count);
-int ql_core_dump(struct ql_adapter *qdev,
-		struct ql_mpi_coredump *mpi_coredump);
+int ql_dump_risc_ram_area(struct ql_adapter *qdev, void *buf, u32 ram_addr,
+			  int word_count);
+int ql_core_dump(struct ql_adapter *qdev, struct ql_mpi_coredump *mpi_coredump);
 int ql_mb_about_fw(struct ql_adapter *qdev);
 int ql_mb_wol_set_magic(struct ql_adapter *qdev, u32 enable_wol);
 int ql_mb_wol_mode(struct ql_adapter *qdev, u32 wol);
@@ -2249,8 +2248,7 @@ int ql_mb_get_port_cfg(struct ql_adapter *qdev);
 int ql_mb_set_port_cfg(struct ql_adapter *qdev);
 int ql_wait_fifo_empty(struct ql_adapter *qdev);
 void ql_get_dump(struct ql_adapter *qdev, void *buff);
-void ql_gen_reg_dump(struct ql_adapter *qdev,
-			struct ql_reg_dump *mpi_coredump);
+void ql_gen_reg_dump(struct ql_adapter *qdev, struct ql_reg_dump *mpi_coredump);
 netdev_tx_t ql_lb_send(struct sk_buff *skb, struct net_device *ndev);
 void ql_check_lb_frame(struct ql_adapter *, struct sk_buff *);
 int ql_own_firmware(struct ql_adapter *qdev);
@@ -2264,9 +2262,9 @@ int ql_clean_lb_rx_ring(struct rx_ring *rx_ring, int budget);
 /* #define QL_OB_DUMP */
 
 #ifdef QL_REG_DUMP
-extern void ql_dump_xgmac_control_regs(struct ql_adapter *qdev);
-extern void ql_dump_routing_entries(struct ql_adapter *qdev);
-extern void ql_dump_regs(struct ql_adapter *qdev);
+void ql_dump_xgmac_control_regs(struct ql_adapter *qdev);
+void ql_dump_routing_entries(struct ql_adapter *qdev);
+void ql_dump_regs(struct ql_adapter *qdev);
 #define QL_DUMP_REGS(qdev) ql_dump_regs(qdev)
 #define QL_DUMP_ROUTE(qdev) ql_dump_routing_entries(qdev)
 #define QL_DUMP_XGMAC_CONTROL_REGS(qdev) ql_dump_xgmac_control_regs(qdev)
@@ -2277,26 +2275,26 @@ extern void ql_dump_regs(struct ql_adapter *qdev);
 #endif
 
 #ifdef QL_STAT_DUMP
-extern void ql_dump_stat(struct ql_adapter *qdev);
+void ql_dump_stat(struct ql_adapter *qdev);
 #define QL_DUMP_STAT(qdev) ql_dump_stat(qdev)
 #else
 #define QL_DUMP_STAT(qdev)
 #endif
 
 #ifdef QL_DEV_DUMP
-extern void ql_dump_qdev(struct ql_adapter *qdev);
+void ql_dump_qdev(struct ql_adapter *qdev);
 #define QL_DUMP_QDEV(qdev) ql_dump_qdev(qdev)
 #else
 #define QL_DUMP_QDEV(qdev)
 #endif
 
 #ifdef QL_CB_DUMP
-extern void ql_dump_wqicb(struct wqicb *wqicb);
-extern void ql_dump_tx_ring(struct tx_ring *tx_ring);
-extern void ql_dump_ricb(struct ricb *ricb);
-extern void ql_dump_cqicb(struct cqicb *cqicb);
-extern void ql_dump_rx_ring(struct rx_ring *rx_ring);
-extern void ql_dump_hw_cb(struct ql_adapter *qdev, int size, u32 bit, u16 q_id);
+void ql_dump_wqicb(struct wqicb *wqicb);
+void ql_dump_tx_ring(struct tx_ring *tx_ring);
+void ql_dump_ricb(struct ricb *ricb);
+void ql_dump_cqicb(struct cqicb *cqicb);
+void ql_dump_rx_ring(struct rx_ring *rx_ring);
+void ql_dump_hw_cb(struct ql_adapter *qdev, int size, u32 bit, u16 q_id);
 #define QL_DUMP_RICB(ricb) ql_dump_ricb(ricb)
 #define QL_DUMP_WQICB(wqicb) ql_dump_wqicb(wqicb)
 #define QL_DUMP_TX_RING(tx_ring) ql_dump_tx_ring(tx_ring)
@@ -2314,9 +2312,9 @@ extern void ql_dump_hw_cb(struct ql_adapter *qdev, int size, u32 bit, u16 q_id);
 #endif
 
 #ifdef QL_OB_DUMP
-extern void ql_dump_tx_desc(struct tx_buf_desc *tbd);
-extern void ql_dump_ob_mac_iocb(struct ob_mac_iocb_req *ob_mac_iocb);
-extern void ql_dump_ob_mac_rsp(struct ob_mac_iocb_rsp *ob_mac_rsp);
+void ql_dump_tx_desc(struct tx_buf_desc *tbd);
+void ql_dump_ob_mac_iocb(struct ob_mac_iocb_req *ob_mac_iocb);
+void ql_dump_ob_mac_rsp(struct ob_mac_iocb_rsp *ob_mac_rsp);
 #define QL_DUMP_OB_MAC_IOCB(ob_mac_iocb) ql_dump_ob_mac_iocb(ob_mac_iocb)
 #define QL_DUMP_OB_MAC_RSP(ob_mac_rsp) ql_dump_ob_mac_rsp(ob_mac_rsp)
 #else
@@ -2325,14 +2323,14 @@ extern void ql_dump_ob_mac_rsp(struct ob_mac_iocb_rsp *ob_mac_rsp);
 #endif
 
 #ifdef QL_IB_DUMP
-extern void ql_dump_ib_mac_rsp(struct ib_mac_iocb_rsp *ib_mac_rsp);
+void ql_dump_ib_mac_rsp(struct ib_mac_iocb_rsp *ib_mac_rsp);
 #define QL_DUMP_IB_MAC_RSP(ib_mac_rsp) ql_dump_ib_mac_rsp(ib_mac_rsp)
 #else
 #define QL_DUMP_IB_MAC_RSP(ib_mac_rsp)
 #endif
 
 #ifdef	QL_ALL_DUMP
-extern void ql_dump_all(struct ql_adapter *qdev);
+void ql_dump_all(struct ql_adapter *qdev);
 #define QL_DUMP_ALL(qdev) ql_dump_all(qdev)
 #else
 #define QL_DUMP_ALL(qdev)
-- 
cgit 


From 00aef9867ee9d0de8380c3e65c1ca41698fc9949 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: sfc: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/ethernet/sfc/efx.h      | 104 +++++++++---------
 drivers/net/ethernet/sfc/mcdi.h     | 120 ++++++++++-----------
 drivers/net/ethernet/sfc/mdio_10g.h |  26 +++--
 drivers/net/ethernet/sfc/nic.h      | 210 ++++++++++++++++++------------------
 drivers/net/ethernet/sfc/phy.h      |   8 +-
 drivers/net/ethernet/sfc/selftest.h |  15 ++-
 6 files changed, 234 insertions(+), 249 deletions(-)

diff --git a/drivers/net/ethernet/sfc/efx.h b/drivers/net/ethernet/sfc/efx.h
index 31d01284e333..b8235ee5d7d7 100644
--- a/drivers/net/ethernet/sfc/efx.h
+++ b/drivers/net/ethernet/sfc/efx.h
@@ -18,38 +18,36 @@
 #define EFX_MEM_BAR 2
 
 /* TX */
-extern int efx_probe_tx_queue(struct efx_tx_queue *tx_queue);
-extern void efx_remove_tx_queue(struct efx_tx_queue *tx_queue);
-extern void efx_init_tx_queue(struct efx_tx_queue *tx_queue);
-extern void efx_init_tx_queue_core_txq(struct efx_tx_queue *tx_queue);
-extern void efx_fini_tx_queue(struct efx_tx_queue *tx_queue);
-extern netdev_tx_t
-efx_hard_start_xmit(struct sk_buff *skb, struct net_device *net_dev);
-extern netdev_tx_t
-efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb);
-extern void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index);
-extern int efx_setup_tc(struct net_device *net_dev, u8 num_tc);
-extern unsigned int efx_tx_max_skb_descs(struct efx_nic *efx);
+int efx_probe_tx_queue(struct efx_tx_queue *tx_queue);
+void efx_remove_tx_queue(struct efx_tx_queue *tx_queue);
+void efx_init_tx_queue(struct efx_tx_queue *tx_queue);
+void efx_init_tx_queue_core_txq(struct efx_tx_queue *tx_queue);
+void efx_fini_tx_queue(struct efx_tx_queue *tx_queue);
+netdev_tx_t efx_hard_start_xmit(struct sk_buff *skb,
+				struct net_device *net_dev);
+netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb);
+void efx_xmit_done(struct efx_tx_queue *tx_queue, unsigned int index);
+int efx_setup_tc(struct net_device *net_dev, u8 num_tc);
+unsigned int efx_tx_max_skb_descs(struct efx_nic *efx);
 extern unsigned int efx_piobuf_size;
 
 /* RX */
-extern void efx_rx_config_page_split(struct efx_nic *efx);
-extern int efx_probe_rx_queue(struct efx_rx_queue *rx_queue);
-extern void efx_remove_rx_queue(struct efx_rx_queue *rx_queue);
-extern void efx_init_rx_queue(struct efx_rx_queue *rx_queue);
-extern void efx_fini_rx_queue(struct efx_rx_queue *rx_queue);
-extern void efx_fast_push_rx_descriptors(struct efx_rx_queue *rx_queue);
-extern void efx_rx_slow_fill(unsigned long context);
-extern void __efx_rx_packet(struct efx_channel *channel);
-extern void efx_rx_packet(struct efx_rx_queue *rx_queue,
-			  unsigned int index, unsigned int n_frags,
-			  unsigned int len, u16 flags);
+void efx_rx_config_page_split(struct efx_nic *efx);
+int efx_probe_rx_queue(struct efx_rx_queue *rx_queue);
+void efx_remove_rx_queue(struct efx_rx_queue *rx_queue);
+void efx_init_rx_queue(struct efx_rx_queue *rx_queue);
+void efx_fini_rx_queue(struct efx_rx_queue *rx_queue);
+void efx_fast_push_rx_descriptors(struct efx_rx_queue *rx_queue);
+void efx_rx_slow_fill(unsigned long context);
+void __efx_rx_packet(struct efx_channel *channel);
+void efx_rx_packet(struct efx_rx_queue *rx_queue, unsigned int index,
+		   unsigned int n_frags, unsigned int len, u16 flags);
 static inline void efx_rx_flush_packet(struct efx_channel *channel)
 {
 	if (channel->rx_pkt_n_frags)
 		__efx_rx_packet(channel);
 }
-extern void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue);
+void efx_schedule_slow_fill(struct efx_rx_queue *rx_queue);
 
 #define EFX_MAX_DMAQ_SIZE 4096UL
 #define EFX_DEFAULT_DMAQ_SIZE 1024UL
@@ -163,9 +161,9 @@ static inline s32 efx_filter_get_rx_ids(struct efx_nic *efx,
 	return efx->type->filter_get_rx_ids(efx, priority, buf, size);
 }
 #ifdef CONFIG_RFS_ACCEL
-extern int efx_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
-			  u16 rxq_index, u32 flow_id);
-extern bool __efx_filter_rfs_expire(struct efx_nic *efx, unsigned quota);
+int efx_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
+		   u16 rxq_index, u32 flow_id);
+bool __efx_filter_rfs_expire(struct efx_nic *efx, unsigned quota);
 static inline void efx_filter_rfs_expire(struct efx_channel *channel)
 {
 	if (channel->rfs_filters_added >= 60 &&
@@ -177,50 +175,48 @@ static inline void efx_filter_rfs_expire(struct efx_channel *channel)
 static inline void efx_filter_rfs_expire(struct efx_channel *channel) {}
 #define efx_filter_rfs_enabled() 0
 #endif
-extern bool efx_filter_is_mc_recipient(const struct efx_filter_spec *spec);
+bool efx_filter_is_mc_recipient(const struct efx_filter_spec *spec);
 
 /* Channels */
-extern int efx_channel_dummy_op_int(struct efx_channel *channel);
-extern void efx_channel_dummy_op_void(struct efx_channel *channel);
-extern int
-efx_realloc_channels(struct efx_nic *efx, u32 rxq_entries, u32 txq_entries);
+int efx_channel_dummy_op_int(struct efx_channel *channel);
+void efx_channel_dummy_op_void(struct efx_channel *channel);
+int efx_realloc_channels(struct efx_nic *efx, u32 rxq_entries, u32 txq_entries);
 
 /* Ports */
-extern int efx_reconfigure_port(struct efx_nic *efx);
-extern int __efx_reconfigure_port(struct efx_nic *efx);
+int efx_reconfigure_port(struct efx_nic *efx);
+int __efx_reconfigure_port(struct efx_nic *efx);
 
 /* Ethtool support */
 extern const struct ethtool_ops efx_ethtool_ops;
 
 /* Reset handling */
-extern int efx_reset(struct efx_nic *efx, enum reset_type method);
-extern void efx_reset_down(struct efx_nic *efx, enum reset_type method);
-extern int efx_reset_up(struct efx_nic *efx, enum reset_type method, bool ok);
-extern int efx_try_recovery(struct efx_nic *efx);
+int efx_reset(struct efx_nic *efx, enum reset_type method);
+void efx_reset_down(struct efx_nic *efx, enum reset_type method);
+int efx_reset_up(struct efx_nic *efx, enum reset_type method, bool ok);
+int efx_try_recovery(struct efx_nic *efx);
 
 /* Global */
-extern void efx_schedule_reset(struct efx_nic *efx, enum reset_type type);
-extern int efx_init_irq_moderation(struct efx_nic *efx, unsigned int tx_usecs,
-				   unsigned int rx_usecs, bool rx_adaptive,
-				   bool rx_may_override_tx);
-extern void efx_get_irq_moderation(struct efx_nic *efx, unsigned int *tx_usecs,
-				   unsigned int *rx_usecs, bool *rx_adaptive);
+void efx_schedule_reset(struct efx_nic *efx, enum reset_type type);
+int efx_init_irq_moderation(struct efx_nic *efx, unsigned int tx_usecs,
+			    unsigned int rx_usecs, bool rx_adaptive,
+			    bool rx_may_override_tx);
+void efx_get_irq_moderation(struct efx_nic *efx, unsigned int *tx_usecs,
+			    unsigned int *rx_usecs, bool *rx_adaptive);
 
 /* Dummy PHY ops for PHY drivers */
-extern int efx_port_dummy_op_int(struct efx_nic *efx);
-extern void efx_port_dummy_op_void(struct efx_nic *efx);
-
+int efx_port_dummy_op_int(struct efx_nic *efx);
+void efx_port_dummy_op_void(struct efx_nic *efx);
 
 /* MTD */
 #ifdef CONFIG_SFC_MTD
-extern int efx_mtd_add(struct efx_nic *efx, struct efx_mtd_partition *parts,
-		       size_t n_parts, size_t sizeof_part);
+int efx_mtd_add(struct efx_nic *efx, struct efx_mtd_partition *parts,
+		size_t n_parts, size_t sizeof_part);
 static inline int efx_mtd_probe(struct efx_nic *efx)
 {
 	return efx->type->mtd_probe(efx);
 }
-extern void efx_mtd_rename(struct efx_nic *efx);
-extern void efx_mtd_remove(struct efx_nic *efx);
+void efx_mtd_rename(struct efx_nic *efx);
+void efx_mtd_remove(struct efx_nic *efx);
 #else
 static inline int efx_mtd_probe(struct efx_nic *efx) { return 0; }
 static inline void efx_mtd_rename(struct efx_nic *efx) {}
@@ -242,9 +238,9 @@ static inline void efx_schedule_channel_irq(struct efx_channel *channel)
 	efx_schedule_channel(channel);
 }
 
-extern void efx_link_status_changed(struct efx_nic *efx);
-extern void efx_link_set_advertising(struct efx_nic *efx, u32);
-extern void efx_link_set_wanted_fc(struct efx_nic *efx, u8);
+void efx_link_status_changed(struct efx_nic *efx);
+void efx_link_set_advertising(struct efx_nic *efx, u32);
+void efx_link_set_wanted_fc(struct efx_nic *efx, u8);
 
 static inline void efx_device_detach_sync(struct efx_nic *efx)
 {
diff --git a/drivers/net/ethernet/sfc/mcdi.h b/drivers/net/ethernet/sfc/mcdi.h
index c34d0d4e10ee..656a3277c2b2 100644
--- a/drivers/net/ethernet/sfc/mcdi.h
+++ b/drivers/net/ethernet/sfc/mcdi.h
@@ -108,38 +108,35 @@ static inline struct efx_mcdi_mon *efx_mcdi_mon(struct efx_nic *efx)
 }
 #endif
 
-extern int efx_mcdi_init(struct efx_nic *efx);
-extern void efx_mcdi_fini(struct efx_nic *efx);
+int efx_mcdi_init(struct efx_nic *efx);
+void efx_mcdi_fini(struct efx_nic *efx);
 
-extern int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd,
-			const efx_dword_t *inbuf, size_t inlen,
+int efx_mcdi_rpc(struct efx_nic *efx, unsigned cmd, const efx_dword_t *inbuf,
+		 size_t inlen, efx_dword_t *outbuf, size_t outlen,
+		 size_t *outlen_actual);
+
+int efx_mcdi_rpc_start(struct efx_nic *efx, unsigned cmd,
+		       const efx_dword_t *inbuf, size_t inlen);
+int efx_mcdi_rpc_finish(struct efx_nic *efx, unsigned cmd, size_t inlen,
 			efx_dword_t *outbuf, size_t outlen,
 			size_t *outlen_actual);
 
-extern int efx_mcdi_rpc_start(struct efx_nic *efx, unsigned cmd,
-			      const efx_dword_t *inbuf, size_t inlen);
-extern int efx_mcdi_rpc_finish(struct efx_nic *efx, unsigned cmd, size_t inlen,
-			       efx_dword_t *outbuf, size_t outlen,
-			       size_t *outlen_actual);
-
 typedef void efx_mcdi_async_completer(struct efx_nic *efx,
 				      unsigned long cookie, int rc,
 				      efx_dword_t *outbuf,
 				      size_t outlen_actual);
-extern int efx_mcdi_rpc_async(struct efx_nic *efx, unsigned int cmd,
-			      const efx_dword_t *inbuf, size_t inlen,
-			      size_t outlen,
-			      efx_mcdi_async_completer *complete,
-			      unsigned long cookie);
+int efx_mcdi_rpc_async(struct efx_nic *efx, unsigned int cmd,
+		       const efx_dword_t *inbuf, size_t inlen, size_t outlen,
+		       efx_mcdi_async_completer *complete,
+		       unsigned long cookie);
 
-extern int efx_mcdi_poll_reboot(struct efx_nic *efx);
-extern void efx_mcdi_mode_poll(struct efx_nic *efx);
-extern void efx_mcdi_mode_event(struct efx_nic *efx);
-extern void efx_mcdi_flush_async(struct efx_nic *efx);
+int efx_mcdi_poll_reboot(struct efx_nic *efx);
+void efx_mcdi_mode_poll(struct efx_nic *efx);
+void efx_mcdi_mode_event(struct efx_nic *efx);
+void efx_mcdi_flush_async(struct efx_nic *efx);
 
-extern void efx_mcdi_process_event(struct efx_channel *channel,
-				   efx_qword_t *event);
-extern void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev);
+void efx_mcdi_process_event(struct efx_channel *channel, efx_qword_t *event);
+void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev);
 
 /* We expect that 16- and 32-bit fields in MCDI requests and responses
  * are appropriately aligned, but 64-bit fields are only
@@ -275,55 +272,54 @@ extern void efx_mcdi_sensor_event(struct efx_nic *efx, efx_qword_t *ev);
 #define MCDI_EVENT_FIELD(_ev, _field)			\
 	EFX_QWORD_FIELD(_ev, MCDI_EVENT_ ## _field)
 
-extern void efx_mcdi_print_fwver(struct efx_nic *efx, char *buf, size_t len);
-extern int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address,
-				  u16 *fw_subtype_list, u32 *capabilities);
-extern int efx_mcdi_log_ctrl(struct efx_nic *efx, bool evq, bool uart,
-			     u32 dest_evq);
-extern int efx_mcdi_nvram_types(struct efx_nic *efx, u32 *nvram_types_out);
-extern int efx_mcdi_nvram_info(struct efx_nic *efx, unsigned int type,
-			       size_t *size_out, size_t *erase_size_out,
-			       bool *protected_out);
-extern int efx_mcdi_nvram_test_all(struct efx_nic *efx);
-extern int efx_mcdi_handle_assertion(struct efx_nic *efx);
-extern void efx_mcdi_set_id_led(struct efx_nic *efx, enum efx_led_mode mode);
-extern int efx_mcdi_wol_filter_set_magic(struct efx_nic *efx,
-					 const u8 *mac, int *id_out);
-extern int efx_mcdi_wol_filter_get_magic(struct efx_nic *efx, int *id_out);
-extern int efx_mcdi_wol_filter_remove(struct efx_nic *efx, int id);
-extern int efx_mcdi_wol_filter_reset(struct efx_nic *efx);
-extern int efx_mcdi_flush_rxqs(struct efx_nic *efx);
-extern int efx_mcdi_port_probe(struct efx_nic *efx);
-extern void efx_mcdi_port_remove(struct efx_nic *efx);
-extern int efx_mcdi_port_reconfigure(struct efx_nic *efx);
-extern int efx_mcdi_port_get_number(struct efx_nic *efx);
-extern u32 efx_mcdi_phy_get_caps(struct efx_nic *efx);
-extern void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev);
-extern int efx_mcdi_set_mac(struct efx_nic *efx);
+void efx_mcdi_print_fwver(struct efx_nic *efx, char *buf, size_t len);
+int efx_mcdi_get_board_cfg(struct efx_nic *efx, u8 *mac_address,
+			   u16 *fw_subtype_list, u32 *capabilities);
+int efx_mcdi_log_ctrl(struct efx_nic *efx, bool evq, bool uart, u32 dest_evq);
+int efx_mcdi_nvram_types(struct efx_nic *efx, u32 *nvram_types_out);
+int efx_mcdi_nvram_info(struct efx_nic *efx, unsigned int type,
+			size_t *size_out, size_t *erase_size_out,
+			bool *protected_out);
+int efx_mcdi_nvram_test_all(struct efx_nic *efx);
+int efx_mcdi_handle_assertion(struct efx_nic *efx);
+void efx_mcdi_set_id_led(struct efx_nic *efx, enum efx_led_mode mode);
+int efx_mcdi_wol_filter_set_magic(struct efx_nic *efx, const u8 *mac,
+				  int *id_out);
+int efx_mcdi_wol_filter_get_magic(struct efx_nic *efx, int *id_out);
+int efx_mcdi_wol_filter_remove(struct efx_nic *efx, int id);
+int efx_mcdi_wol_filter_reset(struct efx_nic *efx);
+int efx_mcdi_flush_rxqs(struct efx_nic *efx);
+int efx_mcdi_port_probe(struct efx_nic *efx);
+void efx_mcdi_port_remove(struct efx_nic *efx);
+int efx_mcdi_port_reconfigure(struct efx_nic *efx);
+int efx_mcdi_port_get_number(struct efx_nic *efx);
+u32 efx_mcdi_phy_get_caps(struct efx_nic *efx);
+void efx_mcdi_process_link_change(struct efx_nic *efx, efx_qword_t *ev);
+int efx_mcdi_set_mac(struct efx_nic *efx);
 #define EFX_MC_STATS_GENERATION_INVALID ((__force __le64)(-1))
-extern void efx_mcdi_mac_start_stats(struct efx_nic *efx);
-extern void efx_mcdi_mac_stop_stats(struct efx_nic *efx);
-extern bool efx_mcdi_mac_check_fault(struct efx_nic *efx);
-extern enum reset_type efx_mcdi_map_reset_reason(enum reset_type reason);
-extern int efx_mcdi_reset(struct efx_nic *efx, enum reset_type method);
-extern int efx_mcdi_set_workaround(struct efx_nic *efx, u32 type, bool enabled);
+void efx_mcdi_mac_start_stats(struct efx_nic *efx);
+void efx_mcdi_mac_stop_stats(struct efx_nic *efx);
+bool efx_mcdi_mac_check_fault(struct efx_nic *efx);
+enum reset_type efx_mcdi_map_reset_reason(enum reset_type reason);
+int efx_mcdi_reset(struct efx_nic *efx, enum reset_type method);
+int efx_mcdi_set_workaround(struct efx_nic *efx, u32 type, bool enabled);
 
 #ifdef CONFIG_SFC_MCDI_MON
-extern int efx_mcdi_mon_probe(struct efx_nic *efx);
-extern void efx_mcdi_mon_remove(struct efx_nic *efx);
+int efx_mcdi_mon_probe(struct efx_nic *efx);
+void efx_mcdi_mon_remove(struct efx_nic *efx);
 #else
 static inline int efx_mcdi_mon_probe(struct efx_nic *efx) { return 0; }
 static inline void efx_mcdi_mon_remove(struct efx_nic *efx) {}
 #endif
 
 #ifdef CONFIG_SFC_MTD
-extern int efx_mcdi_mtd_read(struct mtd_info *mtd, loff_t start,
-			     size_t len, size_t *retlen, u8 *buffer);
-extern int efx_mcdi_mtd_erase(struct mtd_info *mtd, loff_t start, size_t len);
-extern int efx_mcdi_mtd_write(struct mtd_info *mtd, loff_t start,
-			      size_t len, size_t *retlen, const u8 *buffer);
-extern int efx_mcdi_mtd_sync(struct mtd_info *mtd);
-extern void efx_mcdi_mtd_rename(struct efx_mtd_partition *part);
+int efx_mcdi_mtd_read(struct mtd_info *mtd, loff_t start, size_t len,
+		      size_t *retlen, u8 *buffer);
+int efx_mcdi_mtd_erase(struct mtd_info *mtd, loff_t start, size_t len);
+int efx_mcdi_mtd_write(struct mtd_info *mtd, loff_t start, size_t len,
+		       size_t *retlen, const u8 *buffer);
+int efx_mcdi_mtd_sync(struct mtd_info *mtd);
+void efx_mcdi_mtd_rename(struct efx_mtd_partition *part);
 #endif
 
 #endif /* EFX_MCDI_H */
diff --git a/drivers/net/ethernet/sfc/mdio_10g.h b/drivers/net/ethernet/sfc/mdio_10g.h
index 16824fecc5ee..4a2dc4c281b7 100644
--- a/drivers/net/ethernet/sfc/mdio_10g.h
+++ b/drivers/net/ethernet/sfc/mdio_10g.h
@@ -20,7 +20,7 @@
 
 static inline unsigned efx_mdio_id_rev(u32 id) { return id & 0xf; }
 static inline unsigned efx_mdio_id_model(u32 id) { return (id >> 4) & 0x3f; }
-extern unsigned efx_mdio_id_oui(u32 id);
+unsigned efx_mdio_id_oui(u32 id);
 
 static inline int efx_mdio_read(struct efx_nic *efx, int devad, int addr)
 {
@@ -56,7 +56,7 @@ static inline bool efx_mdio_phyxgxs_lane_sync(struct efx_nic *efx)
 	return sync;
 }
 
-extern const char *efx_mdio_mmd_name(int mmd);
+const char *efx_mdio_mmd_name(int mmd);
 
 /*
  * Reset a specific MMD and wait for reset to clear.
@@ -64,30 +64,29 @@ extern const char *efx_mdio_mmd_name(int mmd);
  *
  * This function will sleep
  */
-extern int efx_mdio_reset_mmd(struct efx_nic *efx, int mmd,
-			      int spins, int spintime);
+int efx_mdio_reset_mmd(struct efx_nic *efx, int mmd, int spins, int spintime);
 
 /* As efx_mdio_check_mmd but for multiple MMDs */
 int efx_mdio_check_mmds(struct efx_nic *efx, unsigned int mmd_mask);
 
 /* Check the link status of specified mmds in bit mask */
-extern bool efx_mdio_links_ok(struct efx_nic *efx, unsigned int mmd_mask);
+bool efx_mdio_links_ok(struct efx_nic *efx, unsigned int mmd_mask);
 
 /* Generic transmit disable support though PMAPMD */
-extern void efx_mdio_transmit_disable(struct efx_nic *efx);
+void efx_mdio_transmit_disable(struct efx_nic *efx);
 
 /* Generic part of reconfigure: set/clear loopback bits */
-extern void efx_mdio_phy_reconfigure(struct efx_nic *efx);
+void efx_mdio_phy_reconfigure(struct efx_nic *efx);
 
 /* Set the power state of the specified MMDs */
-extern void efx_mdio_set_mmds_lpower(struct efx_nic *efx,
-				     int low_power, unsigned int mmd_mask);
+void efx_mdio_set_mmds_lpower(struct efx_nic *efx, int low_power,
+			      unsigned int mmd_mask);
 
 /* Set (some of) the PHY settings over MDIO */
-extern int efx_mdio_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd);
+int efx_mdio_set_settings(struct efx_nic *efx, struct ethtool_cmd *ecmd);
 
 /* Push advertising flags and restart autonegotiation */
-extern void efx_mdio_an_reconfigure(struct efx_nic *efx);
+void efx_mdio_an_reconfigure(struct efx_nic *efx);
 
 /* Get pause parameters from AN if available (otherwise return
  * requested pause parameters)
@@ -95,8 +94,7 @@ extern void efx_mdio_an_reconfigure(struct efx_nic *efx);
 u8 efx_mdio_get_pause(struct efx_nic *efx);
 
 /* Wait for specified MMDs to exit reset within a timeout */
-extern int efx_mdio_wait_reset_mmds(struct efx_nic *efx,
-				    unsigned int mmd_mask);
+int efx_mdio_wait_reset_mmds(struct efx_nic *efx, unsigned int mmd_mask);
 
 /* Set or clear flag, debouncing */
 static inline void
@@ -107,6 +105,6 @@ efx_mdio_set_flag(struct efx_nic *efx, int devad, int addr,
 }
 
 /* Liveness self-test for MDIO PHYs */
-extern int efx_mdio_test_alive(struct efx_nic *efx);
+int efx_mdio_test_alive(struct efx_nic *efx);
 
 #endif /* EFX_MDIO_10G_H */
diff --git a/drivers/net/ethernet/sfc/nic.h b/drivers/net/ethernet/sfc/nic.h
index 609f06769245..08883c8edf0e 100644
--- a/drivers/net/ethernet/sfc/nic.h
+++ b/drivers/net/ethernet/sfc/nic.h
@@ -30,7 +30,7 @@ static inline int efx_nic_rev(struct efx_nic *efx)
 	return efx->type->revision;
 }
 
-extern u32 efx_farch_fpga_ver(struct efx_nic *efx);
+u32 efx_farch_fpga_ver(struct efx_nic *efx);
 
 /* NIC has two interlinked PCI functions for the same port. */
 static inline bool efx_nic_is_dual_func(struct efx_nic *efx)
@@ -497,18 +497,18 @@ static inline unsigned int efx_vf_size(struct efx_nic *efx)
 	return 1 << efx->vi_scale;
 }
 
-extern int efx_init_sriov(void);
-extern void efx_sriov_probe(struct efx_nic *efx);
-extern int efx_sriov_init(struct efx_nic *efx);
-extern void efx_sriov_mac_address_changed(struct efx_nic *efx);
-extern void efx_sriov_tx_flush_done(struct efx_nic *efx, efx_qword_t *event);
-extern void efx_sriov_rx_flush_done(struct efx_nic *efx, efx_qword_t *event);
-extern void efx_sriov_event(struct efx_channel *channel, efx_qword_t *event);
-extern void efx_sriov_desc_fetch_err(struct efx_nic *efx, unsigned dmaq);
-extern void efx_sriov_flr(struct efx_nic *efx, unsigned flr);
-extern void efx_sriov_reset(struct efx_nic *efx);
-extern void efx_sriov_fini(struct efx_nic *efx);
-extern void efx_fini_sriov(void);
+int efx_init_sriov(void);
+void efx_sriov_probe(struct efx_nic *efx);
+int efx_sriov_init(struct efx_nic *efx);
+void efx_sriov_mac_address_changed(struct efx_nic *efx);
+void efx_sriov_tx_flush_done(struct efx_nic *efx, efx_qword_t *event);
+void efx_sriov_rx_flush_done(struct efx_nic *efx, efx_qword_t *event);
+void efx_sriov_event(struct efx_channel *channel, efx_qword_t *event);
+void efx_sriov_desc_fetch_err(struct efx_nic *efx, unsigned dmaq);
+void efx_sriov_flr(struct efx_nic *efx, unsigned flr);
+void efx_sriov_reset(struct efx_nic *efx);
+void efx_sriov_fini(struct efx_nic *efx);
+void efx_fini_sriov(void);
 
 #else
 
@@ -534,22 +534,20 @@ static inline void efx_fini_sriov(void) {}
 
 #endif
 
-extern int efx_sriov_set_vf_mac(struct net_device *dev, int vf, u8 *mac);
-extern int efx_sriov_set_vf_vlan(struct net_device *dev, int vf,
-				 u16 vlan, u8 qos);
-extern int efx_sriov_get_vf_config(struct net_device *dev, int vf,
-				   struct ifla_vf_info *ivf);
-extern int efx_sriov_set_vf_spoofchk(struct net_device *net_dev, int vf,
-				     bool spoofchk);
+int efx_sriov_set_vf_mac(struct net_device *dev, int vf, u8 *mac);
+int efx_sriov_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos);
+int efx_sriov_get_vf_config(struct net_device *dev, int vf,
+			    struct ifla_vf_info *ivf);
+int efx_sriov_set_vf_spoofchk(struct net_device *net_dev, int vf,
+			      bool spoofchk);
 
 struct ethtool_ts_info;
-extern void efx_ptp_probe(struct efx_nic *efx);
-extern int efx_ptp_ioctl(struct efx_nic *efx, struct ifreq *ifr, int cmd);
-extern void efx_ptp_get_ts_info(struct efx_nic *efx,
-				struct ethtool_ts_info *ts_info);
-extern bool efx_ptp_is_ptp_tx(struct efx_nic *efx, struct sk_buff *skb);
-extern int efx_ptp_tx(struct efx_nic *efx, struct sk_buff *skb);
-extern void efx_ptp_event(struct efx_nic *efx, efx_qword_t *ev);
+void efx_ptp_probe(struct efx_nic *efx);
+int efx_ptp_ioctl(struct efx_nic *efx, struct ifreq *ifr, int cmd);
+void efx_ptp_get_ts_info(struct efx_nic *efx, struct ethtool_ts_info *ts_info);
+bool efx_ptp_is_ptp_tx(struct efx_nic *efx, struct sk_buff *skb);
+int efx_ptp_tx(struct efx_nic *efx, struct sk_buff *skb);
+void efx_ptp_event(struct efx_nic *efx, efx_qword_t *ev);
 
 extern const struct efx_nic_type falcon_a1_nic_type;
 extern const struct efx_nic_type falcon_b0_nic_type;
@@ -563,7 +561,7 @@ extern const struct efx_nic_type efx_hunt_a0_nic_type;
  **************************************************************************
  */
 
-extern int falcon_probe_board(struct efx_nic *efx, u16 revision_info);
+int falcon_probe_board(struct efx_nic *efx, u16 revision_info);
 
 /* TX data path */
 static inline int efx_nic_probe_tx(struct efx_tx_queue *tx_queue)
@@ -631,58 +629,58 @@ static inline void efx_nic_eventq_read_ack(struct efx_channel *channel)
 {
 	channel->efx->type->ev_read_ack(channel);
 }
-extern void efx_nic_event_test_start(struct efx_channel *channel);
+void efx_nic_event_test_start(struct efx_channel *channel);
 
 /* Falcon/Siena queue operations */
-extern int efx_farch_tx_probe(struct efx_tx_queue *tx_queue);
-extern void efx_farch_tx_init(struct efx_tx_queue *tx_queue);
-extern void efx_farch_tx_fini(struct efx_tx_queue *tx_queue);
-extern void efx_farch_tx_remove(struct efx_tx_queue *tx_queue);
-extern void efx_farch_tx_write(struct efx_tx_queue *tx_queue);
-extern int efx_farch_rx_probe(struct efx_rx_queue *rx_queue);
-extern void efx_farch_rx_init(struct efx_rx_queue *rx_queue);
-extern void efx_farch_rx_fini(struct efx_rx_queue *rx_queue);
-extern void efx_farch_rx_remove(struct efx_rx_queue *rx_queue);
-extern void efx_farch_rx_write(struct efx_rx_queue *rx_queue);
-extern void efx_farch_rx_defer_refill(struct efx_rx_queue *rx_queue);
-extern int efx_farch_ev_probe(struct efx_channel *channel);
-extern int efx_farch_ev_init(struct efx_channel *channel);
-extern void efx_farch_ev_fini(struct efx_channel *channel);
-extern void efx_farch_ev_remove(struct efx_channel *channel);
-extern int efx_farch_ev_process(struct efx_channel *channel, int quota);
-extern void efx_farch_ev_read_ack(struct efx_channel *channel);
-extern void efx_farch_ev_test_generate(struct efx_channel *channel);
+int efx_farch_tx_probe(struct efx_tx_queue *tx_queue);
+void efx_farch_tx_init(struct efx_tx_queue *tx_queue);
+void efx_farch_tx_fini(struct efx_tx_queue *tx_queue);
+void efx_farch_tx_remove(struct efx_tx_queue *tx_queue);
+void efx_farch_tx_write(struct efx_tx_queue *tx_queue);
+int efx_farch_rx_probe(struct efx_rx_queue *rx_queue);
+void efx_farch_rx_init(struct efx_rx_queue *rx_queue);
+void efx_farch_rx_fini(struct efx_rx_queue *rx_queue);
+void efx_farch_rx_remove(struct efx_rx_queue *rx_queue);
+void efx_farch_rx_write(struct efx_rx_queue *rx_queue);
+void efx_farch_rx_defer_refill(struct efx_rx_queue *rx_queue);
+int efx_farch_ev_probe(struct efx_channel *channel);
+int efx_farch_ev_init(struct efx_channel *channel);
+void efx_farch_ev_fini(struct efx_channel *channel);
+void efx_farch_ev_remove(struct efx_channel *channel);
+int efx_farch_ev_process(struct efx_channel *channel, int quota);
+void efx_farch_ev_read_ack(struct efx_channel *channel);
+void efx_farch_ev_test_generate(struct efx_channel *channel);
 
 /* Falcon/Siena filter operations */
-extern int efx_farch_filter_table_probe(struct efx_nic *efx);
-extern void efx_farch_filter_table_restore(struct efx_nic *efx);
-extern void efx_farch_filter_table_remove(struct efx_nic *efx);
-extern void efx_farch_filter_update_rx_scatter(struct efx_nic *efx);
-extern s32 efx_farch_filter_insert(struct efx_nic *efx,
-				   struct efx_filter_spec *spec, bool replace);
-extern int efx_farch_filter_remove_safe(struct efx_nic *efx,
-					enum efx_filter_priority priority,
-					u32 filter_id);
-extern int efx_farch_filter_get_safe(struct efx_nic *efx,
-				     enum efx_filter_priority priority,
-				     u32 filter_id, struct efx_filter_spec *);
-extern void efx_farch_filter_clear_rx(struct efx_nic *efx,
-				      enum efx_filter_priority priority);
-extern u32 efx_farch_filter_count_rx_used(struct efx_nic *efx,
-					  enum efx_filter_priority priority);
-extern u32 efx_farch_filter_get_rx_id_limit(struct efx_nic *efx);
-extern s32 efx_farch_filter_get_rx_ids(struct efx_nic *efx,
-				       enum efx_filter_priority priority,
-				       u32 *buf, u32 size);
+int efx_farch_filter_table_probe(struct efx_nic *efx);
+void efx_farch_filter_table_restore(struct efx_nic *efx);
+void efx_farch_filter_table_remove(struct efx_nic *efx);
+void efx_farch_filter_update_rx_scatter(struct efx_nic *efx);
+s32 efx_farch_filter_insert(struct efx_nic *efx, struct efx_filter_spec *spec,
+			    bool replace);
+int efx_farch_filter_remove_safe(struct efx_nic *efx,
+				 enum efx_filter_priority priority,
+				 u32 filter_id);
+int efx_farch_filter_get_safe(struct efx_nic *efx,
+			      enum efx_filter_priority priority, u32 filter_id,
+			      struct efx_filter_spec *);
+void efx_farch_filter_clear_rx(struct efx_nic *efx,
+			       enum efx_filter_priority priority);
+u32 efx_farch_filter_count_rx_used(struct efx_nic *efx,
+				   enum efx_filter_priority priority);
+u32 efx_farch_filter_get_rx_id_limit(struct efx_nic *efx);
+s32 efx_farch_filter_get_rx_ids(struct efx_nic *efx,
+				enum efx_filter_priority priority, u32 *buf,
+				u32 size);
 #ifdef CONFIG_RFS_ACCEL
-extern s32 efx_farch_filter_rfs_insert(struct efx_nic *efx,
-				       struct efx_filter_spec *spec);
-extern bool efx_farch_filter_rfs_expire_one(struct efx_nic *efx, u32 flow_id,
-					    unsigned int index);
+s32 efx_farch_filter_rfs_insert(struct efx_nic *efx,
+				struct efx_filter_spec *spec);
+bool efx_farch_filter_rfs_expire_one(struct efx_nic *efx, u32 flow_id,
+				     unsigned int index);
 #endif
-extern void efx_farch_filter_sync_rx_mode(struct efx_nic *efx);
+void efx_farch_filter_sync_rx_mode(struct efx_nic *efx);
 
-extern bool efx_nic_event_present(struct efx_channel *channel);
+bool efx_nic_event_present(struct efx_channel *channel);
 
 /* Some statistics are computed as A - B where A and B each increase
  * linearly with some hardware counter(s) and the counters are read
@@ -703,17 +701,17 @@ static inline void efx_update_diff_stat(u64 *stat, u64 diff)
 }
 
 /* Interrupts */
-extern int efx_nic_init_interrupt(struct efx_nic *efx);
-extern void efx_nic_irq_test_start(struct efx_nic *efx);
-extern void efx_nic_fini_interrupt(struct efx_nic *efx);
+int efx_nic_init_interrupt(struct efx_nic *efx);
+void efx_nic_irq_test_start(struct efx_nic *efx);
+void efx_nic_fini_interrupt(struct efx_nic *efx);
 
 /* Falcon/Siena interrupts */
-extern void efx_farch_irq_enable_master(struct efx_nic *efx);
-extern void efx_farch_irq_test_generate(struct efx_nic *efx);
-extern void efx_farch_irq_disable_master(struct efx_nic *efx);
-extern irqreturn_t efx_farch_msi_interrupt(int irq, void *dev_id);
-extern irqreturn_t efx_farch_legacy_interrupt(int irq, void *dev_id);
-extern irqreturn_t efx_farch_fatal_interrupt(struct efx_nic *efx);
+void efx_farch_irq_enable_master(struct efx_nic *efx);
+void efx_farch_irq_test_generate(struct efx_nic *efx);
+void efx_farch_irq_disable_master(struct efx_nic *efx);
+irqreturn_t efx_farch_msi_interrupt(int irq, void *dev_id);
+irqreturn_t efx_farch_legacy_interrupt(int irq, void *dev_id);
+irqreturn_t efx_farch_fatal_interrupt(struct efx_nic *efx);
 
 static inline int efx_nic_event_test_irq_cpu(struct efx_channel *channel)
 {
@@ -725,21 +723,21 @@ static inline int efx_nic_irq_test_irq_cpu(struct efx_nic *efx)
 }
 
 /* Global Resources */
-extern int efx_nic_flush_queues(struct efx_nic *efx);
-extern void siena_prepare_flush(struct efx_nic *efx);
-extern int efx_farch_fini_dmaq(struct efx_nic *efx);
-extern void siena_finish_flush(struct efx_nic *efx);
-extern void falcon_start_nic_stats(struct efx_nic *efx);
-extern void falcon_stop_nic_stats(struct efx_nic *efx);
-extern int falcon_reset_xaui(struct efx_nic *efx);
-extern void efx_farch_dimension_resources(struct efx_nic *efx, unsigned sram_lim_qw);
-extern void efx_farch_init_common(struct efx_nic *efx);
-extern void efx_ef10_handle_drain_event(struct efx_nic *efx);
+int efx_nic_flush_queues(struct efx_nic *efx);
+void siena_prepare_flush(struct efx_nic *efx);
+int efx_farch_fini_dmaq(struct efx_nic *efx);
+void siena_finish_flush(struct efx_nic *efx);
+void falcon_start_nic_stats(struct efx_nic *efx);
+void falcon_stop_nic_stats(struct efx_nic *efx);
+int falcon_reset_xaui(struct efx_nic *efx);
+void efx_farch_dimension_resources(struct efx_nic *efx, unsigned sram_lim_qw);
+void efx_farch_init_common(struct efx_nic *efx);
+void efx_ef10_handle_drain_event(struct efx_nic *efx);
 static inline void efx_nic_push_rx_indir_table(struct efx_nic *efx)
 {
 	efx->type->rx_push_indir_table(efx);
 }
-extern void efx_farch_rx_push_indir_table(struct efx_nic *efx);
+void efx_farch_rx_push_indir_table(struct efx_nic *efx);
 
 int efx_nic_alloc_buffer(struct efx_nic *efx, struct efx_buffer *buffer,
 			 unsigned int len, gfp_t gfp_flags);
@@ -750,24 +748,22 @@ struct efx_farch_register_test {
 	unsigned address;
 	efx_oword_t mask;
 };
-extern int efx_farch_test_registers(struct efx_nic *efx,
-				    const struct efx_farch_register_test *regs,
-				    size_t n_regs);
+int efx_farch_test_registers(struct efx_nic *efx,
+			     const struct efx_farch_register_test *regs,
+			     size_t n_regs);
 
-extern size_t efx_nic_get_regs_len(struct efx_nic *efx);
-extern void efx_nic_get_regs(struct efx_nic *efx, void *buf);
+size_t efx_nic_get_regs_len(struct efx_nic *efx);
+void efx_nic_get_regs(struct efx_nic *efx, void *buf);
 
-extern size_t
-efx_nic_describe_stats(const struct efx_hw_stat_desc *desc, size_t count,
-		       const unsigned long *mask, u8 *names);
-extern void
-efx_nic_update_stats(const struct efx_hw_stat_desc *desc, size_t count,
-		     const unsigned long *mask,
-		     u64 *stats, const void *dma_buf, bool accumulate);
+size_t efx_nic_describe_stats(const struct efx_hw_stat_desc *desc, size_t count,
+			      const unsigned long *mask, u8 *names);
+void efx_nic_update_stats(const struct efx_hw_stat_desc *desc, size_t count,
+			  const unsigned long *mask, u64 *stats,
+			  const void *dma_buf, bool accumulate);
 
 #define EFX_MAX_FLUSH_TIME 5000
 
-extern void efx_farch_generate_event(struct efx_nic *efx, unsigned int evq,
-				     efx_qword_t *event);
+void efx_farch_generate_event(struct efx_nic *efx, unsigned int evq,
+			      efx_qword_t *event);
 
 #endif /* EFX_NIC_H */
diff --git a/drivers/net/ethernet/sfc/phy.h b/drivers/net/ethernet/sfc/phy.h
index 45eeb7075156..803bf445c08e 100644
--- a/drivers/net/ethernet/sfc/phy.h
+++ b/drivers/net/ethernet/sfc/phy.h
@@ -15,7 +15,7 @@
  */
 extern const struct efx_phy_operations falcon_sfx7101_phy_ops;
 
-extern void tenxpress_set_id_led(struct efx_nic *efx, enum efx_led_mode mode);
+void tenxpress_set_id_led(struct efx_nic *efx, enum efx_led_mode mode);
 
 /****************************************************************************
  * AMCC/Quake QT202x PHYs
@@ -34,7 +34,7 @@ extern const struct efx_phy_operations falcon_qt202x_phy_ops;
 #define QUAKE_LED_TXLINK	(0)
 #define QUAKE_LED_RXLINK	(8)
 
-extern void falcon_qt202x_set_led(struct efx_nic *p, int led, int state);
+void falcon_qt202x_set_led(struct efx_nic *p, int led, int state);
 
 /****************************************************************************
 * Transwitch CX4 retimer
@@ -44,7 +44,7 @@ extern const struct efx_phy_operations falcon_txc_phy_ops;
 #define TXC_GPIO_DIR_INPUT	0
 #define TXC_GPIO_DIR_OUTPUT	1
 
-extern void falcon_txc_set_gpio_dir(struct efx_nic *efx, int pin, int dir);
-extern void falcon_txc_set_gpio_val(struct efx_nic *efx, int pin, int val);
+void falcon_txc_set_gpio_dir(struct efx_nic *efx, int pin, int dir);
+void falcon_txc_set_gpio_val(struct efx_nic *efx, int pin, int val);
 
 #endif
diff --git a/drivers/net/ethernet/sfc/selftest.h b/drivers/net/ethernet/sfc/selftest.h
index 87698ae0bf75..a2f4a06ffa4e 100644
--- a/drivers/net/ethernet/sfc/selftest.h
+++ b/drivers/net/ethernet/sfc/selftest.h
@@ -43,13 +43,12 @@ struct efx_self_tests {
 	struct efx_loopback_self_tests loopback[LOOPBACK_TEST_MAX + 1];
 };
 
-extern void efx_loopback_rx_packet(struct efx_nic *efx,
-				   const char *buf_ptr, int pkt_len);
-extern int efx_selftest(struct efx_nic *efx,
-			struct efx_self_tests *tests,
-			unsigned flags);
-extern void efx_selftest_async_start(struct efx_nic *efx);
-extern void efx_selftest_async_cancel(struct efx_nic *efx);
-extern void efx_selftest_async_work(struct work_struct *data);
+void efx_loopback_rx_packet(struct efx_nic *efx, const char *buf_ptr,
+			    int pkt_len);
+int efx_selftest(struct efx_nic *efx, struct efx_self_tests *tests,
+		 unsigned flags);
+void efx_selftest_async_start(struct efx_nic *efx);
+void efx_selftest_async_cancel(struct efx_nic *efx);
+void efx_selftest_async_work(struct work_struct *data);
 
 #endif /* EFX_SELFTEST_H */
-- 
cgit 


From d6cc64ef73f74edfc485fefb5e6dc2ba625bd675 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: stmicro: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/ethernet/stmicro/stmmac/common.h    | 12 ++++++------
 drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h | 17 ++++++++---------
 drivers/net/ethernet/stmicro/stmmac/mmc.h       |  6 +++---
 drivers/net/ethernet/stmicro/stmmac/stmmac.h    | 10 +++++-----
 4 files changed, 22 insertions(+), 23 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h
index 7eb8babed2cb..fc94f202a43e 100644
--- a/drivers/net/ethernet/stmicro/stmmac/common.h
+++ b/drivers/net/ethernet/stmicro/stmmac/common.h
@@ -451,14 +451,14 @@ struct mac_device_info {
 struct mac_device_info *dwmac1000_setup(void __iomem *ioaddr);
 struct mac_device_info *dwmac100_setup(void __iomem *ioaddr);
 
-extern void stmmac_set_mac_addr(void __iomem *ioaddr, u8 addr[6],
-				unsigned int high, unsigned int low);
-extern void stmmac_get_mac_addr(void __iomem *ioaddr, unsigned char *addr,
-				unsigned int high, unsigned int low);
+void stmmac_set_mac_addr(void __iomem *ioaddr, u8 addr[6],
+			 unsigned int high, unsigned int low);
+void stmmac_get_mac_addr(void __iomem *ioaddr, unsigned char *addr,
+			 unsigned int high, unsigned int low);
 
-extern void stmmac_set_mac(void __iomem *ioaddr, bool enable);
+void stmmac_set_mac(void __iomem *ioaddr, bool enable);
 
-extern void dwmac_dma_flush_tx_fifo(void __iomem *ioaddr);
+void dwmac_dma_flush_tx_fifo(void __iomem *ioaddr);
 extern const struct stmmac_ring_mode_ops ring_mode_ops;
 extern const struct stmmac_chain_mode_ops chain_mode_ops;
 
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h b/drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h
index 8e5662ce488b..def266da55db 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h
@@ -104,14 +104,13 @@
 #define DMA_STATUS_TI	0x00000001	/* Transmit Interrupt */
 #define DMA_CONTROL_FTF		0x00100000	/* Flush transmit FIFO */
 
-extern void dwmac_enable_dma_transmission(void __iomem *ioaddr);
-extern void dwmac_enable_dma_irq(void __iomem *ioaddr);
-extern void dwmac_disable_dma_irq(void __iomem *ioaddr);
-extern void dwmac_dma_start_tx(void __iomem *ioaddr);
-extern void dwmac_dma_stop_tx(void __iomem *ioaddr);
-extern void dwmac_dma_start_rx(void __iomem *ioaddr);
-extern void dwmac_dma_stop_rx(void __iomem *ioaddr);
-extern int dwmac_dma_interrupt(void __iomem *ioaddr,
-			       struct stmmac_extra_stats *x);
+void dwmac_enable_dma_transmission(void __iomem *ioaddr);
+void dwmac_enable_dma_irq(void __iomem *ioaddr);
+void dwmac_disable_dma_irq(void __iomem *ioaddr);
+void dwmac_dma_start_tx(void __iomem *ioaddr);
+void dwmac_dma_stop_tx(void __iomem *ioaddr);
+void dwmac_dma_start_rx(void __iomem *ioaddr);
+void dwmac_dma_stop_rx(void __iomem *ioaddr);
+int dwmac_dma_interrupt(void __iomem *ioaddr, struct stmmac_extra_stats *x);
 
 #endif /* __DWMAC_DMA_H__ */
diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc.h b/drivers/net/ethernet/stmicro/stmmac/mmc.h
index 48ec001566b5..8607488cbcfc 100644
--- a/drivers/net/ethernet/stmicro/stmmac/mmc.h
+++ b/drivers/net/ethernet/stmicro/stmmac/mmc.h
@@ -128,8 +128,8 @@ struct stmmac_counters {
 	unsigned int mmc_rx_icmp_err_octets;
 };
 
-extern void dwmac_mmc_ctrl(void __iomem *ioaddr, unsigned int mode);
-extern void dwmac_mmc_intr_all_mask(void __iomem *ioaddr);
-extern void dwmac_mmc_read(void __iomem *ioaddr, struct stmmac_counters *mmc);
+void dwmac_mmc_ctrl(void __iomem *ioaddr, unsigned int mode);
+void dwmac_mmc_intr_all_mask(void __iomem *ioaddr);
+void dwmac_mmc_read(void __iomem *ioaddr, struct stmmac_counters *mmc);
 
 #endif /* __MMC_H__ */
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
index f16a9bdf45bb..22f89ffdfd95 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h
@@ -110,14 +110,14 @@ struct stmmac_priv {
 
 extern int phyaddr;
 
-extern int stmmac_mdio_unregister(struct net_device *ndev);
-extern int stmmac_mdio_register(struct net_device *ndev);
-extern void stmmac_set_ethtool_ops(struct net_device *netdev);
+int stmmac_mdio_unregister(struct net_device *ndev);
+int stmmac_mdio_register(struct net_device *ndev);
+void stmmac_set_ethtool_ops(struct net_device *netdev);
 extern const struct stmmac_desc_ops enh_desc_ops;
 extern const struct stmmac_desc_ops ndesc_ops;
 extern const struct stmmac_hwtimestamp stmmac_ptp;
-extern int stmmac_ptp_register(struct stmmac_priv *priv);
-extern void stmmac_ptp_unregister(struct stmmac_priv *priv);
+int stmmac_ptp_register(struct stmmac_priv *priv);
+void stmmac_ptp_unregister(struct stmmac_priv *priv);
 int stmmac_freeze(struct net_device *ndev);
 int stmmac_restore(struct net_device *ndev);
 int stmmac_resume(struct net_device *ndev);
-- 
cgit 


From 95f7f1519d5b1ad7c51b3ac561a0903462202d36 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: ti: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/ethernet/ti/cpts.h | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/ti/cpts.h b/drivers/net/ethernet/ti/cpts.h
index fe993cdd7e23..1a581ef7eee8 100644
--- a/drivers/net/ethernet/ti/cpts.h
+++ b/drivers/net/ethernet/ti/cpts.h
@@ -127,8 +127,8 @@ struct cpts {
 };
 
 #ifdef CONFIG_TI_CPTS
-extern void cpts_rx_timestamp(struct cpts *cpts, struct sk_buff *skb);
-extern void cpts_tx_timestamp(struct cpts *cpts, struct sk_buff *skb);
+void cpts_rx_timestamp(struct cpts *cpts, struct sk_buff *skb);
+void cpts_tx_timestamp(struct cpts *cpts, struct sk_buff *skb);
 #else
 static inline void cpts_rx_timestamp(struct cpts *cpts, struct sk_buff *skb)
 {
@@ -138,8 +138,7 @@ static inline void cpts_tx_timestamp(struct cpts *cpts, struct sk_buff *skb)
 }
 #endif
 
-extern int cpts_register(struct device *dev, struct cpts *cpts,
-			 u32 mult, u32 shift);
-extern void cpts_unregister(struct cpts *cpts);
+int cpts_register(struct device *dev, struct cpts *cpts, u32 mult, u32 shift);
+void cpts_unregister(struct cpts *cpts);
 
 #endif
-- 
cgit 


From 3e0dd1f4722f8e0c10a47b9bbb26e891e79fef60 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: toshiba: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/ethernet/toshiba/ps3_gelic_net.h      | 29 +++++++++++------------
 drivers/net/ethernet/toshiba/ps3_gelic_wireless.h |  6 ++---
 drivers/net/ethernet/toshiba/spider_net.h         |  4 ++--
 3 files changed, 19 insertions(+), 20 deletions(-)

diff --git a/drivers/net/ethernet/toshiba/ps3_gelic_net.h b/drivers/net/ethernet/toshiba/ps3_gelic_net.h
index 309abb472aa2..8505196be9f5 100644
--- a/drivers/net/ethernet/toshiba/ps3_gelic_net.h
+++ b/drivers/net/ethernet/toshiba/ps3_gelic_net.h
@@ -359,27 +359,26 @@ static inline void *port_priv(struct gelic_port *port)
 }
 
 #ifdef CONFIG_PPC_EARLY_DEBUG_PS3GELIC
-extern void udbg_shutdown_ps3gelic(void);
+void udbg_shutdown_ps3gelic(void);
 #else
 static inline void udbg_shutdown_ps3gelic(void) {}
 #endif
 
-extern int gelic_card_set_irq_mask(struct gelic_card *card, u64 mask);
+int gelic_card_set_irq_mask(struct gelic_card *card, u64 mask);
 /* shared netdev ops */
-extern void gelic_card_up(struct gelic_card *card);
-extern void gelic_card_down(struct gelic_card *card);
-extern int gelic_net_open(struct net_device *netdev);
-extern int gelic_net_stop(struct net_device *netdev);
-extern int gelic_net_xmit(struct sk_buff *skb, struct net_device *netdev);
-extern void gelic_net_set_multi(struct net_device *netdev);
-extern void gelic_net_tx_timeout(struct net_device *netdev);
-extern int gelic_net_change_mtu(struct net_device *netdev, int new_mtu);
-extern int gelic_net_setup_netdev(struct net_device *netdev,
-				  struct gelic_card *card);
+void gelic_card_up(struct gelic_card *card);
+void gelic_card_down(struct gelic_card *card);
+int gelic_net_open(struct net_device *netdev);
+int gelic_net_stop(struct net_device *netdev);
+int gelic_net_xmit(struct sk_buff *skb, struct net_device *netdev);
+void gelic_net_set_multi(struct net_device *netdev);
+void gelic_net_tx_timeout(struct net_device *netdev);
+int gelic_net_change_mtu(struct net_device *netdev, int new_mtu);
+int gelic_net_setup_netdev(struct net_device *netdev, struct gelic_card *card);
 
 /* shared ethtool ops */
-extern void gelic_net_get_drvinfo(struct net_device *netdev,
-				  struct ethtool_drvinfo *info);
-extern void gelic_net_poll_controller(struct net_device *netdev);
+void gelic_net_get_drvinfo(struct net_device *netdev,
+			   struct ethtool_drvinfo *info);
+void gelic_net_poll_controller(struct net_device *netdev);
 
 #endif /* _GELIC_NET_H */
diff --git a/drivers/net/ethernet/toshiba/ps3_gelic_wireless.h b/drivers/net/ethernet/toshiba/ps3_gelic_wireless.h
index f7e51b7d7049..11f443d8e4ea 100644
--- a/drivers/net/ethernet/toshiba/ps3_gelic_wireless.h
+++ b/drivers/net/ethernet/toshiba/ps3_gelic_wireless.h
@@ -320,7 +320,7 @@ struct gelic_eurus_cmd {
 #define GELIC_WL_PRIV_SET_PSK		(SIOCIWFIRSTPRIV + 0)
 #define GELIC_WL_PRIV_GET_PSK		(SIOCIWFIRSTPRIV + 1)
 
-extern int gelic_wl_driver_probe(struct gelic_card *card);
-extern int gelic_wl_driver_remove(struct gelic_card *card);
-extern void gelic_wl_interrupt(struct net_device *netdev, u64 status);
+int gelic_wl_driver_probe(struct gelic_card *card);
+int gelic_wl_driver_remove(struct gelic_card *card);
+void gelic_wl_interrupt(struct net_device *netdev, u64 status);
 #endif /* _GELIC_WIRELESS_H */
diff --git a/drivers/net/ethernet/toshiba/spider_net.h b/drivers/net/ethernet/toshiba/spider_net.h
index 4ba2135474d1..9b6af0845a11 100644
--- a/drivers/net/ethernet/toshiba/spider_net.h
+++ b/drivers/net/ethernet/toshiba/spider_net.h
@@ -29,8 +29,8 @@
 
 #include <linux/sungem_phy.h>
 
-extern int spider_net_stop(struct net_device *netdev);
-extern int spider_net_open(struct net_device *netdev);
+int spider_net_stop(struct net_device *netdev);
+int spider_net_open(struct net_device *netdev);
 
 extern const struct ethtool_ops spider_net_ethtool_ops;
 
-- 
cgit 


From d140ad96146b6e7b196c31cbbb0f971845bfd053 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: fddi/skfp: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/fddi/skfp/h/smc.h | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/net/fddi/skfp/h/smc.h b/drivers/net/fddi/skfp/h/smc.h
index 3ca308b28214..bd1166bf8f61 100644
--- a/drivers/net/fddi/skfp/h/smc.h
+++ b/drivers/net/fddi/skfp/h/smc.h
@@ -469,20 +469,20 @@ struct s_smc {
 
 extern const struct fddi_addr fddi_broadcast;
 
-extern void all_selection_criteria(struct s_smc *smc);
-extern void card_stop(struct s_smc *smc);
-extern void init_board(struct s_smc *smc, u_char *mac_addr);
-extern int init_fplus(struct s_smc *smc);
-extern void init_plc(struct s_smc *smc);
-extern int init_smt(struct s_smc *smc, u_char * mac_addr);
-extern void mac1_irq(struct s_smc *smc, u_short stu, u_short stl);
-extern void mac2_irq(struct s_smc *smc, u_short code_s2u, u_short code_s2l);
-extern void mac3_irq(struct s_smc *smc, u_short code_s3u, u_short code_s3l);
-extern int pcm_status_twisted(struct s_smc *smc);
-extern void plc1_irq(struct s_smc *smc);
-extern void plc2_irq(struct s_smc *smc);
-extern void read_address(struct s_smc *smc, u_char * mac_addr);
-extern void timer_irq(struct s_smc *smc);
+void all_selection_criteria(struct s_smc *smc);
+void card_stop(struct s_smc *smc);
+void init_board(struct s_smc *smc, u_char *mac_addr);
+int init_fplus(struct s_smc *smc);
+void init_plc(struct s_smc *smc);
+int init_smt(struct s_smc *smc, u_char *mac_addr);
+void mac1_irq(struct s_smc *smc, u_short stu, u_short stl);
+void mac2_irq(struct s_smc *smc, u_short code_s2u, u_short code_s2l);
+void mac3_irq(struct s_smc *smc, u_short code_s3u, u_short code_s3l);
+int pcm_status_twisted(struct s_smc *smc);
+void plc1_irq(struct s_smc *smc);
+void plc2_irq(struct s_smc *smc);
+void read_address(struct s_smc *smc, u_char *mac_addr);
+void timer_irq(struct s_smc *smc);
 
 #endif	/* _SCMECM_ */
 
-- 
cgit 


From 294da3abaa73a0b69fd54e442b0b5bd9455b7be6 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: irda: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/irda/sir-dev.h | 29 +++++++++++++++--------------
 1 file changed, 15 insertions(+), 14 deletions(-)

diff --git a/drivers/net/irda/sir-dev.h b/drivers/net/irda/sir-dev.h
index 6d5b1e2b1289..f50b9c1c0639 100644
--- a/drivers/net/irda/sir-dev.h
+++ b/drivers/net/irda/sir-dev.h
@@ -102,28 +102,29 @@ struct sir_driver {
 
 /* exported */
 
-extern int irda_register_dongle(struct dongle_driver *new);
-extern int irda_unregister_dongle(struct dongle_driver *drv);
+int irda_register_dongle(struct dongle_driver *new);
+int irda_unregister_dongle(struct dongle_driver *drv);
 
-extern struct sir_dev * sirdev_get_instance(const struct sir_driver *drv, const char *name);
-extern int sirdev_put_instance(struct sir_dev *self);
+struct sir_dev *sirdev_get_instance(const struct sir_driver *drv,
+				    const char *name);
+int sirdev_put_instance(struct sir_dev *self);
 
-extern int sirdev_set_dongle(struct sir_dev *dev, IRDA_DONGLE type);
-extern void sirdev_write_complete(struct sir_dev *dev);
-extern int sirdev_receive(struct sir_dev *dev, const unsigned char *cp, size_t count);
+int sirdev_set_dongle(struct sir_dev *dev, IRDA_DONGLE type);
+void sirdev_write_complete(struct sir_dev *dev);
+int sirdev_receive(struct sir_dev *dev, const unsigned char *cp, size_t count);
 
 /* low level helpers for SIR device/dongle setup */
-extern int sirdev_raw_write(struct sir_dev *dev, const char *buf, int len);
-extern int sirdev_raw_read(struct sir_dev *dev, char *buf, int len);
-extern int sirdev_set_dtr_rts(struct sir_dev *dev, int dtr, int rts);
+int sirdev_raw_write(struct sir_dev *dev, const char *buf, int len);
+int sirdev_raw_read(struct sir_dev *dev, char *buf, int len);
+int sirdev_set_dtr_rts(struct sir_dev *dev, int dtr, int rts);
 
 /* not exported */
 
-extern int sirdev_get_dongle(struct sir_dev *self, IRDA_DONGLE type);
-extern int sirdev_put_dongle(struct sir_dev *self);
+int sirdev_get_dongle(struct sir_dev *self, IRDA_DONGLE type);
+int sirdev_put_dongle(struct sir_dev *self);
 
-extern void sirdev_enable_rx(struct sir_dev *dev);
-extern int sirdev_schedule_request(struct sir_dev *dev, int state, unsigned param);
+void sirdev_enable_rx(struct sir_dev *dev);
+int sirdev_schedule_request(struct sir_dev *dev, int state, unsigned param);
 
 /* inline helpers */
 
-- 
cgit 


From 0ce0e62f1f7893f983a8f61bc8f5306e80d520b1 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Mon, 9 Sep 2013 21:13:06 +0800
Subject: IB/qib: Use pcie_set_mps() and pcie_get_mps() to simplify code

Refactor qib_tune_pcie_caps().  Use pcie_get_mps(), pcie_set_mps(),
pcie_get_readrq(), and pcie_set_readrq() to simplify the code.  The PCI
core caches the "PCIe Max Payload Size Supported" in pci_dev->pcie_mpss,
so use that instead of pcie_capability_read_word().  Remove the unused
val2fld() and fld2val().

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
---
 drivers/infiniband/hw/qib/qib_pcie.c | 96 +++++++++++-------------------------
 1 file changed, 30 insertions(+), 66 deletions(-)

diff --git a/drivers/infiniband/hw/qib/qib_pcie.c b/drivers/infiniband/hw/qib/qib_pcie.c
index 45e55ff33dbf..24973c8b8443 100644
--- a/drivers/infiniband/hw/qib/qib_pcie.c
+++ b/drivers/infiniband/hw/qib/qib_pcie.c
@@ -476,30 +476,6 @@ void qib_pcie_reenable(struct qib_devdata *dd, u16 cmd, u8 iline, u8 cline)
 			"pci_enable_device failed after reset: %d\n", r);
 }
 
-/* code to adjust PCIe capabilities. */
-
-static int fld2val(int wd, int mask)
-{
-	int lsbmask;
-
-	if (!mask)
-		return 0;
-	wd &= mask;
-	lsbmask = mask ^ (mask & (mask - 1));
-	wd /= lsbmask;
-	return wd;
-}
-
-static int val2fld(int wd, int mask)
-{
-	int lsbmask;
-
-	if (!mask)
-		return 0;
-	lsbmask = mask ^ (mask & (mask - 1));
-	wd *= lsbmask;
-	return wd;
-}
 
 static int qib_pcie_coalesce;
 module_param_named(pcie_coalesce, qib_pcie_coalesce, int, S_IRUGO);
@@ -584,9 +560,8 @@ static int qib_tune_pcie_caps(struct qib_devdata *dd)
 {
 	int ret = 1; /* Assume the worst */
 	struct pci_dev *parent;
-	u16 pcaps, pctl, ecaps, ectl;
-	int rc_sup, ep_sup;
-	int rc_cur, ep_cur;
+	u16 rc_mpss, rc_mps, ep_mpss, ep_mps;
+	u16 rc_mrrs, ep_mrrs, max_mrrs;
 
 	/* Find out supported and configured values for parent (root) */
 	parent = dd->pcidev->bus->self;
@@ -597,38 +572,29 @@ static int qib_tune_pcie_caps(struct qib_devdata *dd)
 
 	if (!pci_is_pcie(parent) || !pci_is_pcie(dd->pcidev))
 		goto bail;
-	pcie_capability_read_word(parent, PCI_EXP_DEVCAP, &pcaps);
-	pcie_capability_read_word(parent, PCI_EXP_DEVCTL, &pctl);
+	rc_mpss = parent->pcie_mpss;
+	rc_mps = ffs(pcie_get_mps(parent)) - 8;
 	/* Find out supported and configured values for endpoint (us) */
-	pcie_capability_read_word(dd->pcidev, PCI_EXP_DEVCAP, &ecaps);
-	pcie_capability_read_word(dd->pcidev, PCI_EXP_DEVCTL, &ectl);
+	ep_mpss = dd->pcidev->pcie_mpss;
+	ep_mps = ffs(pcie_get_mps(dd->pcidev)) - 8;
 
 	ret = 0;
 	/* Find max payload supported by root, endpoint */
-	rc_sup = fld2val(pcaps, PCI_EXP_DEVCAP_PAYLOAD);
-	ep_sup = fld2val(ecaps, PCI_EXP_DEVCAP_PAYLOAD);
-	if (rc_sup > ep_sup)
-		rc_sup = ep_sup;
-
-	rc_cur = fld2val(pctl, PCI_EXP_DEVCTL_PAYLOAD);
-	ep_cur = fld2val(ectl, PCI_EXP_DEVCTL_PAYLOAD);
+	if (rc_mpss > ep_mpss)
+		rc_mpss = ep_mpss;
 
 	/* If Supported greater than limit in module param, limit it */
-	if (rc_sup > (qib_pcie_caps & 7))
-		rc_sup = qib_pcie_caps & 7;
+	if (rc_mpss > (qib_pcie_caps & 7))
+		rc_mpss = qib_pcie_caps & 7;
 	/* If less than (allowed, supported), bump root payload */
-	if (rc_sup > rc_cur) {
-		rc_cur = rc_sup;
-		pctl = (pctl & ~PCI_EXP_DEVCTL_PAYLOAD) |
-			val2fld(rc_cur, PCI_EXP_DEVCTL_PAYLOAD);
-		pcie_capability_write_word(parent, PCI_EXP_DEVCTL, pctl);
+	if (rc_mpss > rc_mps) {
+		rc_mps = rc_mpss;
+		pcie_set_mps(parent, 128 << rc_mps);
 	}
 	/* If less than (allowed, supported), bump endpoint payload */
-	if (rc_sup > ep_cur) {
-		ep_cur = rc_sup;
-		ectl = (ectl & ~PCI_EXP_DEVCTL_PAYLOAD) |
-			val2fld(ep_cur, PCI_EXP_DEVCTL_PAYLOAD);
-		pcie_capability_write_word(dd->pcidev, PCI_EXP_DEVCTL, ectl);
+	if (rc_mpss > ep_mps) {
+		ep_mps = rc_mpss;
+		pcie_set_mps(dd->pcidev, 128 << ep_mps);
 	}
 
 	/*
@@ -636,23 +602,21 @@ static int qib_tune_pcie_caps(struct qib_devdata *dd)
 	 * No field for max supported, but PCIe spec limits it to 4096,
 	 * which is code '5' (log2(4096) - 7)
 	 */
-	rc_sup = 5;
-	if (rc_sup > ((qib_pcie_caps >> 4) & 7))
-		rc_sup = (qib_pcie_caps >> 4) & 7;
-	rc_cur = fld2val(pctl, PCI_EXP_DEVCTL_READRQ);
-	ep_cur = fld2val(ectl, PCI_EXP_DEVCTL_READRQ);
-
-	if (rc_sup > rc_cur) {
-		rc_cur = rc_sup;
-		pctl = (pctl & ~PCI_EXP_DEVCTL_READRQ) |
-			val2fld(rc_cur, PCI_EXP_DEVCTL_READRQ);
-		pcie_capability_write_word(parent, PCI_EXP_DEVCTL, pctl);
+	max_mrrs = 5;
+	if (max_mrrs > ((qib_pcie_caps >> 4) & 7))
+		max_mrrs = (qib_pcie_caps >> 4) & 7;
+
+	max_mrrs = 128 << max_mrrs;
+	rc_mrrs = pcie_get_readrq(parent);
+	ep_mrrs = pcie_get_readrq(dd->pcidev);
+
+	if (max_mrrs > rc_mrrs) {
+		rc_mrrs = max_mrrs;
+		pcie_set_readrq(parent, rc_mrrs);
 	}
-	if (rc_sup > ep_cur) {
-		ep_cur = rc_sup;
-		ectl = (ectl & ~PCI_EXP_DEVCTL_READRQ) |
-			val2fld(ep_cur, PCI_EXP_DEVCTL_READRQ);
-		pcie_capability_write_word(dd->pcidev, PCI_EXP_DEVCTL, ectl);
+	if (max_mrrs > ep_mrrs) {
+		ep_mrrs = max_mrrs;
+		pcie_set_readrq(dd->pcidev, ep_mrrs);
 	}
 bail:
 	return ret;
-- 
cgit 


From b856671e8ce18122dce87c2b6b2aec12fb9dda14 Mon Sep 17 00:00:00 2001
From: Philip Avinash <avinashphilip@ti.com>
Date: Sun, 18 Aug 2013 10:49:01 +0530
Subject: ARM: davinci: da8xx boards: gpio device creation

Register  gpio platform device on DA8XX boards.

While at it, group related include files together.

Signed-off-by: Philip Avinash <avinashphilip@ti.com>
[nsekhar@ti.com: remove SoC specific parts from this file.
		 fix compile warnings]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-davinci/board-da830-evm.c     | 14 ++++++++++----
 arch/arm/mach-davinci/board-da850-evm.c     |  6 ++++++
 arch/arm/mach-davinci/board-omapl138-hawk.c |  6 ++++++
 3 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-davinci/board-da830-evm.c b/arch/arm/mach-davinci/board-da830-evm.c
index c4bdc0a1c36e..67df6f6bee49 100644
--- a/arch/arm/mach-davinci/board-da830-evm.c
+++ b/arch/arm/mach-davinci/board-da830-evm.c
@@ -22,17 +22,19 @@
 #include <linux/mtd/partitions.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
+#include <linux/platform_data/gpio-davinci.h>
+#include <linux/platform_data/mtd-davinci.h>
+#include <linux/platform_data/mtd-davinci-aemif.h>
+#include <linux/platform_data/spi-davinci.h>
+#include <linux/platform_data/usb-davinci.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 
+#include <mach/common.h>
 #include <mach/cp_intc.h>
 #include <mach/mux.h>
-#include <linux/platform_data/mtd-davinci.h>
 #include <mach/da8xx.h>
-#include <linux/platform_data/usb-davinci.h>
-#include <linux/platform_data/mtd-davinci-aemif.h>
-#include <linux/platform_data/spi-davinci.h>
 
 #define DA830_EVM_PHY_ID		""
 /*
@@ -591,6 +593,10 @@ static __init void da830_evm_init(void)
 	struct davinci_soc_info *soc_info = &davinci_soc_info;
 	int ret;
 
+	ret = da830_register_gpio();
+	if (ret)
+		pr_warn("da830_evm_init: GPIO init failed: %d\n", ret);
+
 	ret = da830_register_edma(da830_edma_rsv);
 	if (ret)
 		pr_warning("da830_evm_init: edma registration failed: %d\n",
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index dd1fb24521aa..df16cb88a26b 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -28,6 +28,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/physmap.h>
 #include <linux/platform_device.h>
+#include <linux/platform_data/gpio-davinci.h>
 #include <linux/platform_data/mtd-davinci.h>
 #include <linux/platform_data/mtd-davinci-aemif.h>
 #include <linux/platform_data/spi-davinci.h>
@@ -38,6 +39,7 @@
 #include <linux/spi/flash.h>
 #include <linux/wl12xx.h>
 
+#include <mach/common.h>
 #include <mach/cp_intc.h>
 #include <mach/da8xx.h>
 #include <mach/mux.h>
@@ -1437,6 +1439,10 @@ static __init void da850_evm_init(void)
 {
 	int ret;
 
+	ret = da850_register_gpio();
+	if (ret)
+		pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
+
 	ret = pmic_tps65070_init();
 	if (ret)
 		pr_warn("%s: TPS65070 PMIC init failed: %d\n", __func__, ret);
diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c
index ab98c75cabb4..d0d9da0b0a94 100644
--- a/arch/arm/mach-davinci/board-omapl138-hawk.c
+++ b/arch/arm/mach-davinci/board-omapl138-hawk.c
@@ -13,10 +13,12 @@
 #include <linux/init.h>
 #include <linux/console.h>
 #include <linux/gpio.h>
+#include <linux/platform_data/gpio-davinci.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 
+#include <mach/common.h>
 #include <mach/cp_intc.h>
 #include <mach/da8xx.h>
 #include <mach/mux.h>
@@ -290,6 +292,10 @@ static __init void omapl138_hawk_init(void)
 {
 	int ret;
 
+	ret = da850_register_gpio();
+	if (ret)
+		pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
+
 	davinci_serial_init(da8xx_serial_device);
 
 	omapl138_hawk_config_emac();
-- 
cgit 


From 834acb2af6e8255a026c754fac3d1bc3f32b0c1a Mon Sep 17 00:00:00 2001
From: Philip Avinash <avinashphilip@ti.com>
Date: Sun, 18 Aug 2013 10:49:02 +0530
Subject: ARM: davinci: board: gpio device creation

Create GPIO device for existing DaVinci boards.

While at it, group related header files together.

Signed-off-by: Philip Avinash <avinashphilip@ti.com>
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
[nsekhar@ti.com: remove soc bits from this patch and
		 simplify commit message]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
---
 arch/arm/mach-davinci/board-dm355-evm.c     | 15 +++++++++++----
 arch/arm/mach-davinci/board-dm355-leopard.c | 14 ++++++++++----
 arch/arm/mach-davinci/board-dm365-evm.c     |  6 ++++++
 arch/arm/mach-davinci/board-dm644x-evm.c    |  5 +++++
 arch/arm/mach-davinci/board-dm646x-evm.c    | 13 ++++++++++---
 arch/arm/mach-davinci/board-neuros-osd2.c   | 14 ++++++++++----
 6 files changed, 52 insertions(+), 15 deletions(-)

diff --git a/arch/arm/mach-davinci/board-dm355-evm.c b/arch/arm/mach-davinci/board-dm355-evm.c
index 42b23a3194a0..ecdc7d44fa70 100644
--- a/arch/arm/mach-davinci/board-dm355-evm.c
+++ b/arch/arm/mach-davinci/board-dm355-evm.c
@@ -22,15 +22,17 @@
 #include <media/tvp514x.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/eeprom.h>
+#include <linux/platform_data/gpio-davinci.h>
+#include <linux/platform_data/i2c-davinci.h>
+#include <linux/platform_data/mtd-davinci.h>
+#include <linux/platform_data/mmc-davinci.h>
+#include <linux/platform_data/usb-davinci.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 
-#include <linux/platform_data/i2c-davinci.h>
 #include <mach/serial.h>
-#include <linux/platform_data/mtd-davinci.h>
-#include <linux/platform_data/mmc-davinci.h>
-#include <linux/platform_data/usb-davinci.h>
+#include <mach/common.h>
 
 #include "davinci.h"
 
@@ -375,6 +377,11 @@ static struct spi_board_info dm355_evm_spi_info[] __initconst = {
 static __init void dm355_evm_init(void)
 {
 	struct clk *aemif;
+	int ret;
+
+	ret = dm355_gpio_register();
+	if (ret)
+		pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
 
 	gpio_request(1, "dm9000");
 	gpio_direction_input(1);
diff --git a/arch/arm/mach-davinci/board-dm355-leopard.c b/arch/arm/mach-davinci/board-dm355-leopard.c
index 65a984c52df6..43bacbf15314 100644
--- a/arch/arm/mach-davinci/board-dm355-leopard.c
+++ b/arch/arm/mach-davinci/board-dm355-leopard.c
@@ -19,15 +19,16 @@
 #include <linux/clk.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/eeprom.h>
+#include <linux/platform_data/i2c-davinci.h>
+#include <linux/platform_data/mmc-davinci.h>
+#include <linux/platform_data/mtd-davinci.h>
+#include <linux/platform_data/usb-davinci.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 
-#include <linux/platform_data/i2c-davinci.h>
+#include <mach/common.h>
 #include <mach/serial.h>
-#include <linux/platform_data/mtd-davinci.h>
-#include <linux/platform_data/mmc-davinci.h>
-#include <linux/platform_data/usb-davinci.h>
 
 #include "davinci.h"
 
@@ -234,6 +235,11 @@ static struct spi_board_info dm355_leopard_spi_info[] __initconst = {
 static __init void dm355_leopard_init(void)
 {
 	struct clk *aemif;
+	int ret;
+
+	ret = dm355_gpio_register();
+	if (ret)
+		pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
 
 	gpio_request(9, "dm9000");
 	gpio_direction_input(9);
diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c
index 92b7f770615a..c2aed66f284d 100644
--- a/arch/arm/mach-davinci/board-dm365-evm.c
+++ b/arch/arm/mach-davinci/board-dm365-evm.c
@@ -743,6 +743,12 @@ static struct spi_board_info dm365_evm_spi_info[] __initconst = {
 
 static __init void dm365_evm_init(void)
 {
+	int ret;
+
+	ret = dm365_gpio_register();
+	if (ret)
+		pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
+
 	evm_init_i2c();
 	davinci_serial_init(dm365_serial_device);
 
diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index 40bb9b5b87e8..9cc32c283b8b 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -754,9 +754,14 @@ static int davinci_phy_fixup(struct phy_device *phydev)
 
 static __init void davinci_evm_init(void)
 {
+	int ret;
 	struct clk *aemif_clk;
 	struct davinci_soc_info *soc_info = &davinci_soc_info;
 
+	ret = dm644x_gpio_register();
+	if (ret)
+		pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
+
 	aemif_clk = clk_get(NULL, "aemif");
 	clk_prepare_enable(aemif_clk);
 
diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c
index 2bc3651d56cc..44b20191a9fe 100644
--- a/arch/arm/mach-davinci/board-dm646x-evm.c
+++ b/arch/arm/mach-davinci/board-dm646x-evm.c
@@ -33,17 +33,19 @@
 #include <linux/mtd/partitions.h>
 #include <linux/clk.h>
 #include <linux/export.h>
+#include <linux/platform_data/gpio-davinci.h>
+#include <linux/platform_data/i2c-davinci.h>
+#include <linux/platform_data/mtd-davinci.h>
+#include <linux/platform_data/mtd-davinci-aemif.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 
 #include <mach/common.h>
+#include <mach/irqs.h>
 #include <mach/serial.h>
-#include <linux/platform_data/i2c-davinci.h>
-#include <linux/platform_data/mtd-davinci.h>
 #include <mach/clock.h>
 #include <mach/cdce949.h>
-#include <linux/platform_data/mtd-davinci-aemif.h>
 
 #include "davinci.h"
 #include "clock.h"
@@ -786,8 +788,13 @@ static struct edma_rsv_info dm646x_edma_rsv[] = {
 
 static __init void evm_init(void)
 {
+	int ret;
 	struct davinci_soc_info *soc_info = &davinci_soc_info;
 
+	ret = dm646x_gpio_register();
+	if (ret)
+		pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
+
 	evm_init_i2c();
 	davinci_serial_init(dm646x_serial_device);
 	dm646x_init_mcasp0(&dm646x_evm_snd_data[0]);
diff --git a/arch/arm/mach-davinci/board-neuros-osd2.c b/arch/arm/mach-davinci/board-neuros-osd2.c
index 46f336fca803..bb680af98374 100644
--- a/arch/arm/mach-davinci/board-neuros-osd2.c
+++ b/arch/arm/mach-davinci/board-neuros-osd2.c
@@ -26,17 +26,18 @@
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
 #include <linux/mtd/partitions.h>
+#include <linux/platform_data/gpio-davinci.h>
+#include <linux/platform_data/i2c-davinci.h>
+#include <linux/platform_data/mmc-davinci.h>
+#include <linux/platform_data/mtd-davinci.h>
+#include <linux/platform_data/usb-davinci.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 
 #include <mach/common.h>
-#include <linux/platform_data/i2c-davinci.h>
 #include <mach/serial.h>
 #include <mach/mux.h>
-#include <linux/platform_data/mtd-davinci.h>
-#include <linux/platform_data/mmc-davinci.h>
-#include <linux/platform_data/usb-davinci.h>
 
 #include "davinci.h"
 
@@ -169,9 +170,14 @@ static struct davinci_mmc_config davinci_ntosd2_mmc_config = {
 
 static __init void davinci_ntosd2_init(void)
 {
+	int ret;
 	struct clk *aemif_clk;
 	struct davinci_soc_info *soc_info = &davinci_soc_info;
 
+	ret = dm644x_gpio_register();
+	if (ret)
+		pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
+
 	aemif_clk = clk_get(NULL, "aemif");
 	clk_prepare_enable(aemif_clk);
 
-- 
cgit 


From f1a4c52ff5913378b7baf05ac71f10282b341cf7 Mon Sep 17 00:00:00 2001
From: Philip Avinash <avinashphilip@ti.com>
Date: Sun, 18 Aug 2013 10:49:03 +0530
Subject: ARM: davinci: gpio: use gpiolib API instead of inline functions

Remove NEED_MACH_GPIO_H config select option for ARCH_DAVINCI
to start using gpiolib interface for davinci platforms. This makes
it easier to use the gpio driver on other platforms as it breaks
dependency on mach-davinci.

Latencies for gpio_get/set APIs will increase. On measurement,
latency was found to have increased by 18 microsecond with
gpiolib API as compared to inline APIs.

Measurement was done on DA850 EVM for gpio_get_value() API by
taking the printk timing across the call with interrupts disabled.

  inline gpio API with interrupt disabled
  [   29.734337] before gpio_get
  [   29.736847] after gpio_get

  Time difference 0.00251

  gpio library with interrupt disabled
  [  272.876763] before gpio_get
  [  272.879291] after gpio_get

  Time difference 0.002528
  Latency increased by (0.002528 -  0.00251) = 18 microsecond.

While at it, remove GPIO_TYPE_DAVINCI enum definition as
gpio-davinci.c is converted to Linux device driver model.

Signed-off-by: Philip Avinash <avinashphilip@ti.com>
Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
[nsekhar@ti.com: minor edits to commit message]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
---
 arch/arm/Kconfig                                  |  1 -
 arch/arm/mach-davinci/include/mach/gpio-davinci.h | 90 -----------------------
 arch/arm/mach-davinci/include/mach/gpio.h         | 88 ----------------------
 drivers/gpio/gpio-tnetv107x.c                     |  1 +
 include/linux/platform_data/gpio-davinci.h        | 35 +++++++++
 5 files changed, 36 insertions(+), 179 deletions(-)
 delete mode 100644 arch/arm/mach-davinci/include/mach/gpio-davinci.h
 delete mode 100644 arch/arm/mach-davinci/include/mach/gpio.h

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3f7714d8d2d2..ad3767095422 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -847,7 +847,6 @@ config ARCH_DAVINCI
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_IRQ_CHIP
 	select HAVE_IDE
-	select NEED_MACH_GPIO_H
 	select TI_PRIV_EDMA
 	select USE_OF
 	select ZONE_DMA
diff --git a/arch/arm/mach-davinci/include/mach/gpio-davinci.h b/arch/arm/mach-davinci/include/mach/gpio-davinci.h
deleted file mode 100644
index 0d63b24cefc9..000000000000
--- a/arch/arm/mach-davinci/include/mach/gpio-davinci.h
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
- * TI DaVinci GPIO Support
- *
- * Copyright (c) 2006 David Brownell
- * Copyright (c) 2007, MontaVista Software, Inc. <source@mvista.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#ifndef	__DAVINCI_DAVINCI_GPIO_H
-#define	__DAVINCI_DAVINCI_GPIO_H
-
-#include <linux/io.h>
-#include <linux/spinlock.h>
-
-#include <asm-generic/gpio.h>
-
-#include <mach/irqs.h>
-#include <mach/common.h>
-
-enum davinci_gpio_type {
-	GPIO_TYPE_DAVINCI = 0,
-	GPIO_TYPE_TNETV107X,
-};
-
-/*
- * basic gpio routines
- *
- * board-specific init should be done by arch/.../.../board-XXX.c (maybe
- * initializing banks together) rather than boot loaders; kexec() won't
- * go through boot loaders.
- *
- * the gpio clock will be turned on when gpios are used, and you may also
- * need to pay attention to PINMUX registers to be sure those pins are
- * used as gpios, not with other peripherals.
- *
- * On-chip GPIOs are numbered 0..(DAVINCI_N_GPIO-1).  For documentation,
- * and maybe for later updates, code may write GPIO(N).  These may be
- * all 1.8V signals, all 3.3V ones, or a mix of the two.  A given chip
- * may not support all the GPIOs in that range.
- *
- * GPIOs can also be on external chips, numbered after the ones built-in
- * to the DaVinci chip.  For now, they won't be usable as IRQ sources.
- */
-#define	GPIO(X)		(X)		/* 0 <= X <= (DAVINCI_N_GPIO - 1) */
-
-/* Convert GPIO signal to GPIO pin number */
-#define GPIO_TO_PIN(bank, gpio)	(16 * (bank) + (gpio))
-
-struct davinci_gpio_controller {
-	struct gpio_chip	chip;
-	int			irq_base;
-	spinlock_t		lock;
-	void __iomem		*regs;
-	void __iomem		*set_data;
-	void __iomem		*clr_data;
-	void __iomem		*in_data;
-	unsigned		gpio_irq;
-};
-
-/* The __gpio_to_controller() and __gpio_mask() functions inline to constants
- * with constant parameters; or in outlined code they execute at runtime.
- *
- * You'd access the controller directly when reading or writing more than
- * one gpio value at a time, and to support wired logic where the value
- * being driven by the cpu need not match the value read back.
- *
- * These are NOT part of the cross-platform GPIO interface
- */
-static inline struct davinci_gpio_controller *
-__gpio_to_controller(unsigned gpio)
-{
-	struct davinci_gpio_controller *ctlrs = davinci_soc_info.gpio_ctlrs;
-	int index = gpio / 32;
-
-	if (!ctlrs || index >= davinci_soc_info.gpio_ctlrs_num)
-		return NULL;
-
-	return ctlrs + index;
-}
-
-static inline u32 __gpio_mask(unsigned gpio)
-{
-	return 1 << (gpio % 32);
-}
-
-#endif	/* __DAVINCI_DAVINCI_GPIO_H */
diff --git a/arch/arm/mach-davinci/include/mach/gpio.h b/arch/arm/mach-davinci/include/mach/gpio.h
deleted file mode 100644
index 960e9de47e1e..000000000000
--- a/arch/arm/mach-davinci/include/mach/gpio.h
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- * TI DaVinci GPIO Support
- *
- * Copyright (c) 2006 David Brownell
- * Copyright (c) 2007, MontaVista Software, Inc. <source@mvista.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#ifndef	__DAVINCI_GPIO_H
-#define	__DAVINCI_GPIO_H
-
-#include <asm-generic/gpio.h>
-
-#define __ARM_GPIOLIB_COMPLEX
-
-/* The inline versions use the static inlines in the driver header */
-#include "gpio-davinci.h"
-
-/*
- * The get/set/clear functions will inline when called with constant
- * parameters referencing built-in GPIOs, for low-overhead bitbanging.
- *
- * gpio_set_value() will inline only on traditional Davinci style controllers
- * with distinct set/clear registers.
- *
- * Otherwise, calls with variable parameters or referencing external
- * GPIOs (e.g. on GPIO expander chips) use outlined functions.
- */
-static inline void gpio_set_value(unsigned gpio, int value)
-{
-	if (__builtin_constant_p(value) && gpio < davinci_soc_info.gpio_num) {
-		struct davinci_gpio_controller *ctlr;
-		u32				mask;
-
-		ctlr = __gpio_to_controller(gpio);
-
-		if (ctlr->set_data != ctlr->clr_data) {
-			mask = __gpio_mask(gpio);
-			if (value)
-				__raw_writel(mask, ctlr->set_data);
-			else
-				__raw_writel(mask, ctlr->clr_data);
-			return;
-		}
-	}
-
-	__gpio_set_value(gpio, value);
-}
-
-/* Returns zero or nonzero; works for gpios configured as inputs OR
- * as outputs, at least for built-in GPIOs.
- *
- * NOTE: for built-in GPIOs, changes in reported values are synchronized
- * to the GPIO clock.  This is easily seen after calling gpio_set_value()
- * and then immediately gpio_get_value(), where the gpio_get_value() will
- * return the old value until the GPIO clock ticks and the new value gets
- * latched.
- */
-static inline int gpio_get_value(unsigned gpio)
-{
-	struct davinci_gpio_controller *ctlr;
-
-	if (!__builtin_constant_p(gpio) || gpio >= davinci_soc_info.gpio_num)
-		return __gpio_get_value(gpio);
-
-	ctlr = __gpio_to_controller(gpio);
-	return __gpio_mask(gpio) & __raw_readl(ctlr->in_data);
-}
-
-static inline int gpio_cansleep(unsigned gpio)
-{
-	if (__builtin_constant_p(gpio) && gpio < davinci_soc_info.gpio_num)
-		return 0;
-	else
-		return __gpio_cansleep(gpio);
-}
-
-static inline int irq_to_gpio(unsigned irq)
-{
-	/* don't support the reverse mapping */
-	return -ENOSYS;
-}
-
-#endif				/* __DAVINCI_GPIO_H */
diff --git a/drivers/gpio/gpio-tnetv107x.c b/drivers/gpio/gpio-tnetv107x.c
index 3fa3e2867e19..58445bb69106 100644
--- a/drivers/gpio/gpio-tnetv107x.c
+++ b/drivers/gpio/gpio-tnetv107x.c
@@ -15,6 +15,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/gpio.h>
+#include <linux/platform_data/gpio-davinci.h>
 
 #include <mach/common.h>
 #include <mach/tnetv107x.h>
diff --git a/include/linux/platform_data/gpio-davinci.h b/include/linux/platform_data/gpio-davinci.h
index 2fcc125af1aa..6efd20264585 100644
--- a/include/linux/platform_data/gpio-davinci.h
+++ b/include/linux/platform_data/gpio-davinci.h
@@ -16,10 +16,45 @@
 #ifndef __DAVINCI_GPIO_PLATFORM_H
 #define __DAVINCI_GPIO_PLATFORM_H
 
+#include <linux/io.h>
+#include <linux/spinlock.h>
+
+#include <asm-generic/gpio.h>
+
+enum davinci_gpio_type {
+	GPIO_TYPE_TNETV107X = 0,
+};
+
 struct davinci_gpio_platform_data {
 	u32	ngpio;
 	u32	gpio_unbanked;
 	u32	intc_irq_num;
 };
 
+
+struct davinci_gpio_controller {
+	struct gpio_chip	chip;
+	int			irq_base;
+	/* Serialize access to GPIO registers */
+	spinlock_t		lock;
+	void __iomem		*regs;
+	void __iomem		*set_data;
+	void __iomem		*clr_data;
+	void __iomem		*in_data;
+	int			gpio_unbanked;
+	unsigned		gpio_irq;
+};
+
+/*
+ * basic gpio routines
+ */
+#define	GPIO(X)		(X)	/* 0 <= X <= (DAVINCI_N_GPIO - 1) */
+
+/* Convert GPIO signal to GPIO pin number */
+#define GPIO_TO_PIN(bank, gpio)	(16 * (bank) + (gpio))
+
+static inline u32 __gpio_mask(unsigned gpio)
+{
+	return 1 << (gpio % 32);
+}
 #endif
-- 
cgit 


From 5faba2fdf9819ebebd6d1a1cef70fddb0518cd08 Mon Sep 17 00:00:00 2001
From: Arron Wang <arron.wang@intel.com>
Date: Fri, 23 Aug 2013 16:01:58 +0800
Subject: NFC: pn544: Add SE discover operation

For the SWP secure element, we send the proprietary SELF_TEST_SWP
command and check the response.
For the WI secure element, we simply try to switch to the default
embedded SE mode. If that works, it means we have an embedded SE.

Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/nfc/pn544/pn544.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/drivers/nfc/pn544/pn544.c b/drivers/nfc/pn544/pn544.c
index 078e62feba17..727f312e05d2 100644
--- a/drivers/nfc/pn544/pn544.c
+++ b/drivers/nfc/pn544/pn544.c
@@ -41,6 +41,7 @@ enum pn544_state {
 
 /* Proprietary commands */
 #define PN544_WRITE		0x3f
+#define PN544_TEST_SWP		0x21
 
 /* Proprietary gates, events, commands and registers */
 
@@ -83,12 +84,14 @@ enum pn544_state {
 #define PN544_SWP_MGMT_GATE			0xA0
 
 #define PN544_NFC_WI_MGMT_GATE			0xA1
+#define PN544_NFC_ESE_DEFAULT_MODE		0x01
 
 #define PN544_HCI_EVT_SND_DATA			0x01
 #define PN544_HCI_EVT_ACTIVATED			0x02
 #define PN544_HCI_EVT_DEACTIVATED		0x03
 #define PN544_HCI_EVT_RCV_DATA			0x04
 #define PN544_HCI_EVT_CONTINUE_MI		0x05
+#define PN544_HCI_EVT_SWITCH_MODE		0x03
 
 #define PN544_HCI_CMD_ATTREQUEST		0x12
 #define PN544_HCI_CMD_CONTINUE_ACTIVATION	0x13
@@ -792,6 +795,32 @@ static int pn544_hci_fw_download(struct nfc_hci_dev *hdev,
 	return info->fw_download(info->phy_id, firmware_name);
 }
 
+static int pn544_hci_discover_se(struct nfc_hci_dev *hdev)
+{
+	u32 se_idx = 0;
+	u8 ese_mode = 0x01; /* Default mode */
+	struct sk_buff *res_skb;
+	int r;
+
+	r = nfc_hci_send_cmd(hdev, PN544_SYS_MGMT_GATE, PN544_TEST_SWP,
+			     NULL, 0, &res_skb);
+
+	if (r == 0) {
+		if (res_skb->len == 2 && res_skb->data[0] == 0x00)
+			nfc_add_se(hdev->ndev, se_idx++, NFC_SE_UICC);
+
+		kfree_skb(res_skb);
+	}
+
+	r = nfc_hci_send_event(hdev, PN544_NFC_WI_MGMT_GATE,
+				PN544_HCI_EVT_SWITCH_MODE,
+				&ese_mode, 1);
+	if (r == 0)
+		nfc_add_se(hdev->ndev, se_idx++, NFC_SE_EMBEDDED);
+
+	return !se_idx;
+}
+
 static struct nfc_hci_ops pn544_hci_ops = {
 	.open = pn544_hci_open,
 	.close = pn544_hci_close,
@@ -807,6 +836,7 @@ static struct nfc_hci_ops pn544_hci_ops = {
 	.check_presence = pn544_hci_check_presence,
 	.event_received = pn544_hci_event_received,
 	.fw_download = pn544_hci_fw_download,
+	.discover_se = pn544_hci_discover_se,
 };
 
 int pn544_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
-- 
cgit 


From d8eb18eecaf358e37f4941c2b8cba3c4b8122b7f Mon Sep 17 00:00:00 2001
From: Arron Wang <arron.wang@intel.com>
Date: Fri, 23 Aug 2013 16:02:08 +0800
Subject: NFC: Export nfc_find_se()

This will be needed by all NFC driver implementing the SE ops.

Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 include/net/nfc/nfc.h | 1 +
 net/nfc/core.c        | 9 +++++----
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/include/net/nfc/nfc.h b/include/net/nfc/nfc.h
index f68ee68e4e3e..e34859423105 100644
--- a/include/net/nfc/nfc.h
+++ b/include/net/nfc/nfc.h
@@ -243,5 +243,6 @@ void nfc_driver_failure(struct nfc_dev *dev, int err);
 
 int nfc_add_se(struct nfc_dev *dev, u32 se_idx, u16 type);
 int nfc_remove_se(struct nfc_dev *dev, u32 se_idx);
+struct nfc_se *nfc_find_se(struct nfc_dev *dev, u32 se_idx);
 
 #endif /* __NET_NFC_H */
diff --git a/net/nfc/core.c b/net/nfc/core.c
index e92923cf3e03..269ffc5288d0 100644
--- a/net/nfc/core.c
+++ b/net/nfc/core.c
@@ -536,7 +536,7 @@ error:
 	return rc;
 }
 
-static struct nfc_se *find_se(struct nfc_dev *dev, u32 se_idx)
+struct nfc_se *nfc_find_se(struct nfc_dev *dev, u32 se_idx)
 {
 	struct nfc_se *se, *n;
 
@@ -546,6 +546,7 @@ static struct nfc_se *find_se(struct nfc_dev *dev, u32 se_idx)
 
 	return NULL;
 }
+EXPORT_SYMBOL(nfc_find_se);
 
 int nfc_enable_se(struct nfc_dev *dev, u32 se_idx)
 {
@@ -577,7 +578,7 @@ int nfc_enable_se(struct nfc_dev *dev, u32 se_idx)
 		goto error;
 	}
 
-	se = find_se(dev, se_idx);
+	se = nfc_find_se(dev, se_idx);
 	if (!se) {
 		rc = -EINVAL;
 		goto error;
@@ -622,7 +623,7 @@ int nfc_disable_se(struct nfc_dev *dev, u32 se_idx)
 		goto error;
 	}
 
-	se = find_se(dev, se_idx);
+	se = nfc_find_se(dev, se_idx);
 	if (!se) {
 		rc = -EINVAL;
 		goto error;
@@ -881,7 +882,7 @@ int nfc_add_se(struct nfc_dev *dev, u32 se_idx, u16 type)
 
 	pr_debug("%s se index %d\n", dev_name(&dev->dev), se_idx);
 
-	se = find_se(dev, se_idx);
+	se = nfc_find_se(dev, se_idx);
 	if (se)
 		return -EALREADY;
 
-- 
cgit 


From 3943826177945c0f7e82fcf1f37797149c6d9c91 Mon Sep 17 00:00:00 2001
From: Arron Wang <arron.wang@intel.com>
Date: Fri, 23 Aug 2013 16:02:22 +0800
Subject: NFC: pn544: Add SE enable/disable operation

To enable the UICC secure element, we first enable the UICC gate list in
order for the SE to be able to use all RF technologies.
For the embedded SE, we just turn the eSE default mode to ON.

Signed-off-by: Arron Wang <arron.wang@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/nfc/pn544/pn544.c | 86 +++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 79 insertions(+), 7 deletions(-)

diff --git a/drivers/nfc/pn544/pn544.c b/drivers/nfc/pn544/pn544.c
index 727f312e05d2..b5048cbcc182 100644
--- a/drivers/nfc/pn544/pn544.c
+++ b/drivers/nfc/pn544/pn544.c
@@ -82,6 +82,7 @@ enum pn544_state {
 #define PN544_PL_NFCT_DEACTIVATED		0x09
 
 #define PN544_SWP_MGMT_GATE			0xA0
+#define PN544_SWP_DEFAULT_MODE			0x01
 
 #define PN544_NFC_WI_MGMT_GATE			0xA1
 #define PN544_NFC_ESE_DEFAULT_MODE		0x01
@@ -190,13 +191,6 @@ static int pn544_hci_ready(struct nfc_hci_dev *hdev)
 
 		{{0x9e, 0xb4}, 0x00},
 
-		{{0x9e, 0xd9}, 0xff},
-		{{0x9e, 0xda}, 0xff},
-		{{0x9e, 0xdb}, 0x23},
-		{{0x9e, 0xdc}, 0x21},
-		{{0x9e, 0xdd}, 0x22},
-		{{0x9e, 0xde}, 0x24},
-
 		{{0x9c, 0x01}, 0x08},
 
 		{{0x9e, 0xaa}, 0x01},
@@ -821,6 +815,82 @@ static int pn544_hci_discover_se(struct nfc_hci_dev *hdev)
 	return !se_idx;
 }
 
+#define PN544_SE_MODE_OFF	0x00
+#define PN544_SE_MODE_ON	0x01
+static int pn544_hci_enable_se(struct nfc_hci_dev *hdev, u32 se_idx)
+{
+	struct nfc_se *se;
+	u8 enable = PN544_SE_MODE_ON;
+	static struct uicc_gatelist {
+		u8 head;
+		u8 adr[2];
+		u8 value;
+	} uicc_gatelist[] = {
+		{0x00, {0x9e, 0xd9}, 0x23},
+		{0x00, {0x9e, 0xda}, 0x21},
+		{0x00, {0x9e, 0xdb}, 0x22},
+		{0x00, {0x9e, 0xdc}, 0x24},
+	};
+	struct uicc_gatelist *p = uicc_gatelist;
+	int count = ARRAY_SIZE(uicc_gatelist);
+	struct sk_buff *res_skb;
+	int r;
+
+	se = nfc_find_se(hdev->ndev, se_idx);
+
+	switch (se->type) {
+	case NFC_SE_UICC:
+		while (count--) {
+			r = nfc_hci_send_cmd(hdev, PN544_SYS_MGMT_GATE,
+					PN544_WRITE, (u8 *)p, 4, &res_skb);
+			if (r < 0)
+				return r;
+
+			if (res_skb->len != 1) {
+				kfree_skb(res_skb);
+				return -EPROTO;
+			}
+
+			if (res_skb->data[0] != p->value) {
+				kfree_skb(res_skb);
+				return -EIO;
+			}
+
+			kfree_skb(res_skb);
+
+			p++;
+		}
+
+		return nfc_hci_set_param(hdev, PN544_SWP_MGMT_GATE,
+			      PN544_SWP_DEFAULT_MODE, &enable, 1);
+	case NFC_SE_EMBEDDED:
+		return nfc_hci_set_param(hdev, PN544_NFC_WI_MGMT_GATE,
+			      PN544_NFC_ESE_DEFAULT_MODE, &enable, 1);
+
+	default:
+		return -EINVAL;
+	}
+}
+
+static int pn544_hci_disable_se(struct nfc_hci_dev *hdev, u32 se_idx)
+{
+	struct nfc_se *se;
+	u8 disable = PN544_SE_MODE_OFF;
+
+	se = nfc_find_se(hdev->ndev, se_idx);
+
+	switch (se->type) {
+	case NFC_SE_UICC:
+		return nfc_hci_set_param(hdev, PN544_SWP_MGMT_GATE,
+			      PN544_SWP_DEFAULT_MODE, &disable, 1);
+	case NFC_SE_EMBEDDED:
+		return nfc_hci_set_param(hdev, PN544_NFC_WI_MGMT_GATE,
+			      PN544_NFC_ESE_DEFAULT_MODE, &disable, 1);
+	default:
+		return -EINVAL;
+	}
+}
+
 static struct nfc_hci_ops pn544_hci_ops = {
 	.open = pn544_hci_open,
 	.close = pn544_hci_close,
@@ -837,6 +907,8 @@ static struct nfc_hci_ops pn544_hci_ops = {
 	.event_received = pn544_hci_event_received,
 	.fw_download = pn544_hci_fw_download,
 	.discover_se = pn544_hci_discover_se,
+	.enable_se = pn544_hci_enable_se,
+	.disable_se = pn544_hci_disable_se,
 };
 
 int pn544_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
-- 
cgit 


From b48348395ff665f49c7c684c93c5ce09fd0a0307 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 5 Apr 2013 12:27:37 -0700
Subject: NFC: Replace nfc_dev_dbg with dev_dbg

Use the generic kernel function instead of a home-grown
one that does the same thing.

Add \n to uses not at the macro.  Don't add \n where
the nfc_dev_dbg macro mistakenly had them already.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/nfc/nfcsim.c    |  24 ++++-----
 drivers/nfc/nfcwilink.c |  51 ++++++------------
 drivers/nfc/pn533.c     | 137 ++++++++++++++++++++++--------------------------
 include/net/nfc/nfc.h   |   1 -
 4 files changed, 91 insertions(+), 122 deletions(-)

diff --git a/drivers/nfc/nfcsim.c b/drivers/nfc/nfcsim.c
index 9a53f13c88df..4a614794ea61 100644
--- a/drivers/nfc/nfcsim.c
+++ b/drivers/nfc/nfcsim.c
@@ -22,7 +22,7 @@
 #define DEV_ERR(_dev, fmt, args...) nfc_dev_err(&_dev->nfc_dev->dev, \
 						"%s: " fmt, __func__, ## args)
 
-#define DEV_DBG(_dev, fmt, args...) nfc_dev_dbg(&_dev->nfc_dev->dev, \
+#define DEV_DBG(_dev, fmt, args...) dev_dbg(&_dev->nfc_dev->dev, \
 						"%s: " fmt, __func__, ## args)
 
 #define NFCSIM_VERSION "0.1"
@@ -64,7 +64,7 @@ static struct workqueue_struct *wq;
 
 static void nfcsim_cleanup_dev(struct nfcsim *dev, u8 shutdown)
 {
-	DEV_DBG(dev, "shutdown=%d", shutdown);
+	DEV_DBG(dev, "shutdown=%d\n", shutdown);
 
 	mutex_lock(&dev->lock);
 
@@ -84,7 +84,7 @@ static int nfcsim_target_found(struct nfcsim *dev)
 {
 	struct nfc_target nfc_tgt;
 
-	DEV_DBG(dev, "");
+	DEV_DBG(dev, "\n");
 
 	memset(&nfc_tgt, 0, sizeof(struct nfc_target));
 
@@ -98,7 +98,7 @@ static int nfcsim_dev_up(struct nfc_dev *nfc_dev)
 {
 	struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
 
-	DEV_DBG(dev, "");
+	DEV_DBG(dev, "\n");
 
 	mutex_lock(&dev->lock);
 
@@ -113,7 +113,7 @@ static int nfcsim_dev_down(struct nfc_dev *nfc_dev)
 {
 	struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
 
-	DEV_DBG(dev, "");
+	DEV_DBG(dev, "\n");
 
 	mutex_lock(&dev->lock);
 
@@ -172,7 +172,7 @@ static int nfcsim_dep_link_down(struct nfc_dev *nfc_dev)
 {
 	struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
 
-	DEV_DBG(dev, "");
+	DEV_DBG(dev, "\n");
 
 	nfcsim_cleanup_dev(dev, 0);
 
@@ -210,7 +210,7 @@ static int nfcsim_start_poll(struct nfc_dev *nfc_dev,
 
 	queue_delayed_work(wq, &dev->poll_work, 0);
 
-	DEV_DBG(dev, "Start polling: im: 0x%X, tm: 0x%X", im_protocols,
+	DEV_DBG(dev, "Start polling: im: 0x%X, tm: 0x%X\n", im_protocols,
 		tm_protocols);
 
 	rc = 0;
@@ -224,7 +224,7 @@ static void nfcsim_stop_poll(struct nfc_dev *nfc_dev)
 {
 	struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
 
-	DEV_DBG(dev, "Stop poll");
+	DEV_DBG(dev, "Stop poll\n");
 
 	mutex_lock(&dev->lock);
 
@@ -240,7 +240,7 @@ static int nfcsim_activate_target(struct nfc_dev *nfc_dev,
 {
 	struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
 
-	DEV_DBG(dev, "");
+	DEV_DBG(dev, "\n");
 
 	return -ENOTSUPP;
 }
@@ -250,7 +250,7 @@ static void nfcsim_deactivate_target(struct nfc_dev *nfc_dev,
 {
 	struct nfcsim *dev = nfc_get_drvdata(nfc_dev);
 
-	DEV_DBG(dev, "");
+	DEV_DBG(dev, "\n");
 }
 
 static void nfcsim_wq_recv(struct work_struct *work)
@@ -397,13 +397,13 @@ static void nfcsim_wq_poll(struct work_struct *work)
 	nfcsim_set_polling_mode(dev);
 
 	if (dev->curr_polling_mode == NFCSIM_POLL_NONE) {
-		DEV_DBG(dev, "Not polling");
+		DEV_DBG(dev, "Not polling\n");
 		goto unlock;
 	}
 
 	DEV_DBG(dev, "Polling as %s",
 		dev->curr_polling_mode == NFCSIM_POLL_INITIATOR ?
-		"initiator" : "target");
+		"initiator\n" : "target\n");
 
 	if (dev->curr_polling_mode == NFCSIM_POLL_TARGET)
 		goto sched_work;
diff --git a/drivers/nfc/nfcwilink.c b/drivers/nfc/nfcwilink.c
index 59f95d8fc98c..ec9dbf4fad83 100644
--- a/drivers/nfc/nfcwilink.c
+++ b/drivers/nfc/nfcwilink.c
@@ -146,8 +146,6 @@ static int nfcwilink_get_bts_file_name(struct nfcwilink *drv, char *file_name)
 	unsigned long comp_ret;
 	int rc;
 
-	nfc_dev_dbg(&drv->pdev->dev, "get_bts_file_name entry");
-
 	skb = nfcwilink_skb_alloc(sizeof(struct nci_vs_nfcc_info_cmd),
 					GFP_KERNEL);
 	if (!skb) {
@@ -170,17 +168,16 @@ static int nfcwilink_get_bts_file_name(struct nfcwilink *drv, char *file_name)
 
 	comp_ret = wait_for_completion_timeout(&drv->completed,
 				msecs_to_jiffies(NFCWILINK_CMD_TIMEOUT));
-	nfc_dev_dbg(&drv->pdev->dev, "wait_for_completion_timeout returned %ld",
-			comp_ret);
+	dev_dbg(&drv->pdev->dev, "wait_for_completion_timeout returned %ld\n",
+		comp_ret);
 	if (comp_ret == 0) {
-		nfc_dev_err(&drv->pdev->dev,
-				"timeout on wait_for_completion_timeout");
+		dev_err(&drv->pdev->dev,
+			"timeout on wait_for_completion_timeout\n");
 		return -ETIMEDOUT;
 	}
 
-	nfc_dev_dbg(&drv->pdev->dev, "nci_vs_nfcc_info_rsp: plen %d, status %d",
-			drv->nfcc_info.plen,
-			drv->nfcc_info.status);
+	dev_dbg(&drv->pdev->dev, "nci_vs_nfcc_info_rsp: plen %d, status %d\n",
+		drv->nfcc_info.plen, drv->nfcc_info.status);
 
 	if ((drv->nfcc_info.plen != 5) || (drv->nfcc_info.status != 0)) {
 		nfc_dev_err(&drv->pdev->dev,
@@ -207,8 +204,6 @@ static int nfcwilink_send_bts_cmd(struct nfcwilink *drv, __u8 *data, int len)
 	unsigned long comp_ret;
 	int rc;
 
-	nfc_dev_dbg(&drv->pdev->dev, "send_bts_cmd entry");
-
 	/* verify valid cmd for the NFC channel */
 	if ((len <= sizeof(struct nfcwilink_hdr)) ||
 		(len > BTS_FILE_CMD_MAX_LEN) ||
@@ -238,8 +233,8 @@ static int nfcwilink_send_bts_cmd(struct nfcwilink *drv, __u8 *data, int len)
 
 	comp_ret = wait_for_completion_timeout(&drv->completed,
 				msecs_to_jiffies(NFCWILINK_CMD_TIMEOUT));
-	nfc_dev_dbg(&drv->pdev->dev, "wait_for_completion_timeout returned %ld",
-			comp_ret);
+	dev_dbg(&drv->pdev->dev, "wait_for_completion_timeout returned %ld\n",
+		comp_ret);
 	if (comp_ret == 0) {
 		nfc_dev_err(&drv->pdev->dev,
 				"timeout on wait_for_completion_timeout");
@@ -257,8 +252,6 @@ static int nfcwilink_download_fw(struct nfcwilink *drv)
 	__u8 *ptr;
 	int len, rc;
 
-	nfc_dev_dbg(&drv->pdev->dev, "download_fw entry");
-
 	set_bit(NFCWILINK_FW_DOWNLOAD, &drv->flags);
 
 	rc = nfcwilink_get_bts_file_name(drv, file_name);
@@ -280,8 +273,8 @@ static int nfcwilink_download_fw(struct nfcwilink *drv)
 	ptr = (__u8 *)fw->data;
 
 	if ((len == 0) || (ptr == NULL)) {
-		nfc_dev_dbg(&drv->pdev->dev,
-				"request_firmware returned size %d", len);
+		dev_dbg(&drv->pdev->dev,
+			"request_firmware returned size %d\n", len);
 		goto release_fw;
 	}
 
@@ -302,8 +295,8 @@ static int nfcwilink_download_fw(struct nfcwilink *drv)
 		action_len =
 			__le16_to_cpu(((struct bts_file_action *)ptr)->len);
 
-		nfc_dev_dbg(&drv->pdev->dev, "bts_file_action type %d, len %d",
-				action_type, action_len);
+		dev_dbg(&drv->pdev->dev, "bts_file_action type %d, len %d\n",
+			action_type, action_len);
 
 		switch (action_type) {
 		case BTS_FILE_ACTION_TYPE_SEND_CMD:
@@ -333,8 +326,6 @@ static void nfcwilink_register_complete(void *priv_data, char data)
 {
 	struct nfcwilink *drv = priv_data;
 
-	nfc_dev_dbg(&drv->pdev->dev, "register_complete entry");
-
 	/* store ST registration status */
 	drv->st_register_cb_status = data;
 
@@ -356,7 +347,7 @@ static long nfcwilink_receive(void *priv_data, struct sk_buff *skb)
 		return -EFAULT;
 	}
 
-	nfc_dev_dbg(&drv->pdev->dev, "receive entry, len %d", skb->len);
+	dev_dbg(&drv->pdev->dev, "receive entry, len %d\n", skb->len);
 
 	/* strip the ST header
 	(apart for the chnl byte, which is not received in the hdr) */
@@ -396,8 +387,6 @@ static int nfcwilink_open(struct nci_dev *ndev)
 	unsigned long comp_ret;
 	int rc;
 
-	nfc_dev_dbg(&drv->pdev->dev, "open entry");
-
 	if (test_and_set_bit(NFCWILINK_RUNNING, &drv->flags)) {
 		rc = -EBUSY;
 		goto exit;
@@ -415,9 +404,9 @@ static int nfcwilink_open(struct nci_dev *ndev)
 			&drv->completed,
 			msecs_to_jiffies(NFCWILINK_REGISTER_TIMEOUT));
 
-			nfc_dev_dbg(&drv->pdev->dev,
-			"wait_for_completion_timeout returned %ld",
-			comp_ret);
+			dev_dbg(&drv->pdev->dev,
+				"wait_for_completion_timeout returned %ld\n",
+				comp_ret);
 
 			if (comp_ret == 0) {
 				/* timeout */
@@ -460,8 +449,6 @@ static int nfcwilink_close(struct nci_dev *ndev)
 	struct nfcwilink *drv = nci_get_drvdata(ndev);
 	int rc;
 
-	nfc_dev_dbg(&drv->pdev->dev, "close entry");
-
 	if (!test_and_clear_bit(NFCWILINK_RUNNING, &drv->flags))
 		return 0;
 
@@ -480,7 +467,7 @@ static int nfcwilink_send(struct nci_dev *ndev, struct sk_buff *skb)
 	struct nfcwilink_hdr hdr = {NFCWILINK_CHNL, NFCWILINK_OPCODE, 0x0000};
 	long len;
 
-	nfc_dev_dbg(&drv->pdev->dev, "send entry, len %d", skb->len);
+	dev_dbg(&drv->pdev->dev, "send entry, len %d\n", skb->len);
 
 	if (!test_bit(NFCWILINK_RUNNING, &drv->flags)) {
 		kfree_skb(skb);
@@ -517,8 +504,6 @@ static int nfcwilink_probe(struct platform_device *pdev)
 	int rc;
 	__u32 protocols;
 
-	nfc_dev_dbg(&pdev->dev, "probe entry");
-
 	drv = devm_kzalloc(&pdev->dev, sizeof(struct nfcwilink), GFP_KERNEL);
 	if (!drv) {
 		rc = -ENOMEM;
@@ -568,8 +553,6 @@ static int nfcwilink_remove(struct platform_device *pdev)
 	struct nfcwilink *drv = dev_get_drvdata(&pdev->dev);
 	struct nci_dev *ndev;
 
-	nfc_dev_dbg(&pdev->dev, "remove entry");
-
 	if (!drv)
 		return -EFAULT;
 
diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index 5df730be88a3..e64bea53f0c8 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -722,9 +722,9 @@ static void pn533_recv_response(struct urb *urb)
 		break; /* success */
 	case -ECONNRESET:
 	case -ENOENT:
-		nfc_dev_dbg(&dev->interface->dev,
-			    "The urb has been canceled (status %d)",
-			    urb->status);
+		dev_dbg(&dev->interface->dev,
+			"The urb has been canceled (status %d)\n",
+			urb->status);
 		goto sched_wq;
 	case -ESHUTDOWN:
 	default:
@@ -735,7 +735,7 @@ static void pn533_recv_response(struct urb *urb)
 
 	in_frame = dev->in_urb->transfer_buffer;
 
-	nfc_dev_dbg(&dev->interface->dev, "Received a frame.");
+	dev_dbg(&dev->interface->dev, "Received a frame\n");
 	print_hex_dump_debug("PN533 RX: ", DUMP_PREFIX_NONE, 16, 1, in_frame,
 			     dev->ops->rx_frame_size(in_frame), false);
 
@@ -777,9 +777,9 @@ static void pn533_recv_ack(struct urb *urb)
 		break; /* success */
 	case -ECONNRESET:
 	case -ENOENT:
-		nfc_dev_dbg(&dev->interface->dev,
-			    "The urb has been stopped (status %d)",
-			    urb->status);
+		dev_dbg(&dev->interface->dev,
+			"The urb has been stopped (status %d)\n",
+			urb->status);
 		goto sched_wq;
 	case -ESHUTDOWN:
 	default:
@@ -823,8 +823,6 @@ static int pn533_send_ack(struct pn533 *dev, gfp_t flags)
 	/* spec 7.1.1.3:  Preamble, SoPC (2), ACK Code (2), Postamble */
 	int rc;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
-
 	dev->out_urb->transfer_buffer = ack;
 	dev->out_urb->transfer_buffer_length = sizeof(ack);
 	rc = usb_submit_urb(dev->out_urb, flags);
@@ -927,7 +925,7 @@ static int __pn533_send_async(struct pn533 *dev, u8 cmd_code,
 	struct pn533_cmd *cmd;
 	int rc = 0;
 
-	nfc_dev_dbg(&dev->interface->dev, "Sending command 0x%x", cmd_code);
+	dev_dbg(&dev->interface->dev, "Sending command 0x%x\n", cmd_code);
 
 	cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
 	if (!cmd)
@@ -954,8 +952,8 @@ static int __pn533_send_async(struct pn533 *dev, u8 cmd_code,
 		goto unlock;
 	}
 
-	nfc_dev_dbg(&dev->interface->dev, "%s Queueing command 0x%x", __func__,
-		    cmd_code);
+	dev_dbg(&dev->interface->dev, "%s Queueing command 0x%x\n",
+		__func__, cmd_code);
 
 	INIT_LIST_HEAD(&cmd->queue);
 	list_add_tail(&cmd->queue, &dev->cmd_queue);
@@ -1168,9 +1166,9 @@ static void pn533_send_complete(struct urb *urb)
 		break; /* success */
 	case -ECONNRESET:
 	case -ENOENT:
-		nfc_dev_dbg(&dev->interface->dev,
-			    "The urb has been stopped (status %d)",
-			    urb->status);
+		dev_dbg(&dev->interface->dev,
+			"The urb has been stopped (status %d)\n",
+			urb->status);
 		break;
 	case -ESHUTDOWN:
 	default:
@@ -1452,8 +1450,8 @@ static int pn533_target_found(struct pn533 *dev, u8 tg, u8 *tgdata,
 	struct nfc_target nfc_tgt;
 	int rc;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s - modulation=%d", __func__,
-		    dev->poll_mod_curr);
+	dev_dbg(&dev->interface->dev, "%s - modulation=%d\n",
+		__func__, dev->poll_mod_curr);
 
 	if (tg != 1)
 		return -EPROTO;
@@ -1484,14 +1482,14 @@ static int pn533_target_found(struct pn533 *dev, u8 tg, u8 *tgdata,
 		return rc;
 
 	if (!(nfc_tgt.supported_protocols & dev->poll_protocols)) {
-		nfc_dev_dbg(&dev->interface->dev,
-			    "The Tg found doesn't have the desired protocol");
+		dev_dbg(&dev->interface->dev,
+			"The Tg found doesn't have the desired protocol\n");
 		return -EAGAIN;
 	}
 
-	nfc_dev_dbg(&dev->interface->dev,
-		    "Target found - supported protocols: 0x%x",
-		    nfc_tgt.supported_protocols);
+	dev_dbg(&dev->interface->dev,
+		"Target found - supported protocols: 0x%x\n",
+		nfc_tgt.supported_protocols);
 
 	dev->tgt_available_prots = nfc_tgt.supported_protocols;
 
@@ -1548,8 +1546,6 @@ static int pn533_start_poll_complete(struct pn533 *dev, struct sk_buff *resp)
 	u8 nbtg, tg, *tgdata;
 	int rc, tgdata_len;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
-
 	nbtg = resp->data[0];
 	tg = resp->data[1];
 	tgdata = &resp->data[2];
@@ -1629,7 +1625,7 @@ static int pn533_tm_get_data_complete(struct pn533 *dev, void *arg,
 {
 	u8 status;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	if (IS_ERR(resp))
 		return PTR_ERR(resp);
@@ -1650,11 +1646,10 @@ static int pn533_tm_get_data_complete(struct pn533 *dev, void *arg,
 static void pn533_wq_tg_get_data(struct work_struct *work)
 {
 	struct pn533 *dev = container_of(work, struct pn533, tg_work);
-
 	struct sk_buff *skb;
 	int rc;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	skb = pn533_alloc_skb(dev, 0);
 	if (!skb)
@@ -1676,7 +1671,7 @@ static int pn533_init_target_complete(struct pn533 *dev, struct sk_buff *resp)
 	size_t gb_len;
 	int rc;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	if (resp->len < ATR_REQ_GB_OFFSET + 1)
 		return -EINVAL;
@@ -1684,8 +1679,8 @@ static int pn533_init_target_complete(struct pn533 *dev, struct sk_buff *resp)
 	mode = resp->data[0];
 	cmd = &resp->data[1];
 
-	nfc_dev_dbg(&dev->interface->dev, "Target mode 0x%x len %d\n",
-		    mode, resp->len);
+	dev_dbg(&dev->interface->dev, "Target mode 0x%x len %d\n",
+		mode, resp->len);
 
 	if ((mode & PN533_INIT_TARGET_RESP_FRAME_MASK) ==
 	    PN533_INIT_TARGET_RESP_ACTIVE)
@@ -1715,7 +1710,7 @@ static void pn533_listen_mode_timer(unsigned long data)
 {
 	struct pn533 *dev = (struct pn533 *)data;
 
-	nfc_dev_dbg(&dev->interface->dev, "Listen mode timeout");
+	dev_dbg(&dev->interface->dev, "Listen mode timeout\n");
 
 	dev->cancel_listen = 1;
 
@@ -1730,7 +1725,7 @@ static int pn533_rf_complete(struct pn533 *dev, void *arg,
 {
 	int rc = 0;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	if (IS_ERR(resp)) {
 		rc = PTR_ERR(resp);
@@ -1754,7 +1749,7 @@ static void pn533_wq_rf(struct work_struct *work)
 	struct sk_buff *skb;
 	int rc;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	skb = pn533_alloc_skb(dev, 2);
 	if (!skb)
@@ -1779,7 +1774,7 @@ static int pn533_poll_complete(struct pn533 *dev, void *arg,
 	struct pn533_poll_modulations *cur_mod;
 	int rc;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	if (IS_ERR(resp)) {
 		rc = PTR_ERR(resp);
@@ -1813,7 +1808,7 @@ static int pn533_poll_complete(struct pn533 *dev, void *arg,
 		goto done;
 
 	if (!dev->poll_mod_count) {
-		nfc_dev_dbg(&dev->interface->dev, "Polling has been stopped.");
+		dev_dbg(&dev->interface->dev, "Polling has been stopped\n");
 		goto done;
 	}
 
@@ -1856,8 +1851,8 @@ static int pn533_send_poll_frame(struct pn533 *dev)
 
 	mod = dev->poll_mod_active[dev->poll_mod_curr];
 
-	nfc_dev_dbg(&dev->interface->dev, "%s mod len %d\n",
-		    __func__, mod->len);
+	dev_dbg(&dev->interface->dev, "%s mod len %d\n",
+		__func__, mod->len);
 
 	if (mod->len == 0) {  /* Listen mode */
 		cmd_code = PN533_CMD_TG_INIT_AS_TARGET;
@@ -1890,9 +1885,9 @@ static void pn533_wq_poll(struct work_struct *work)
 
 	cur_mod = dev->poll_mod_active[dev->poll_mod_curr];
 
-	nfc_dev_dbg(&dev->interface->dev,
-		    "%s cancel_listen %d modulation len %d",
-		    __func__, dev->cancel_listen, cur_mod->len);
+	dev_dbg(&dev->interface->dev,
+		"%s cancel_listen %d modulation len %d\n",
+		__func__, dev->cancel_listen, cur_mod->len);
 
 	if (dev->cancel_listen == 1) {
 		dev->cancel_listen = 0;
@@ -1915,9 +1910,9 @@ static int pn533_start_poll(struct nfc_dev *nfc_dev,
 	struct pn533 *dev = nfc_get_drvdata(nfc_dev);
 	u8 rand_mod;
 
-	nfc_dev_dbg(&dev->interface->dev,
-		    "%s: im protocols 0x%x tm protocols 0x%x",
-		    __func__, im_protocols, tm_protocols);
+	dev_dbg(&dev->interface->dev,
+		"%s: im protocols 0x%x tm protocols 0x%x\n",
+		__func__, im_protocols, tm_protocols);
 
 	if (dev->tgt_active_prot) {
 		nfc_dev_err(&dev->interface->dev,
@@ -1953,13 +1948,11 @@ static void pn533_stop_poll(struct nfc_dev *nfc_dev)
 {
 	struct pn533 *dev = nfc_get_drvdata(nfc_dev);
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
-
 	del_timer(&dev->listen_timer);
 
 	if (!dev->poll_mod_count) {
-		nfc_dev_dbg(&dev->interface->dev,
-			    "Polling operation was not running");
+		dev_dbg(&dev->interface->dev,
+			"Polling operation was not running\n");
 		return;
 	}
 
@@ -1973,11 +1966,10 @@ static int pn533_activate_target_nfcdep(struct pn533 *dev)
 	struct pn533_cmd_activate_response *rsp;
 	u16 gt_len;
 	int rc;
-
 	struct sk_buff *skb;
 	struct sk_buff *resp;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	skb = pn533_alloc_skb(dev, sizeof(u8) * 2); /*TG + Next*/
 	if (!skb)
@@ -2013,12 +2005,12 @@ static int pn533_activate_target(struct nfc_dev *nfc_dev,
 	struct pn533 *dev = nfc_get_drvdata(nfc_dev);
 	int rc;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s - protocol=%u", __func__,
-		    protocol);
+	dev_dbg(&dev->interface->dev, "%s - protocol=%u\n",
+		__func__, protocol);
 
 	if (dev->poll_mod_count) {
-		nfc_dev_err(&dev->interface->dev,
-			    "Cannot activate while polling");
+		dev_err(&dev->interface->dev,
+			"Cannot activate while polling\n");
 		return -EBUSY;
 	}
 
@@ -2060,13 +2052,11 @@ static void pn533_deactivate_target(struct nfc_dev *nfc_dev,
 				    struct nfc_target *target)
 {
 	struct pn533 *dev = nfc_get_drvdata(nfc_dev);
-
 	struct sk_buff *skb;
 	struct sk_buff *resp;
-
 	int rc;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	if (!dev->tgt_active_prot) {
 		nfc_dev_err(&dev->interface->dev, "There is no active target");
@@ -2129,7 +2119,7 @@ static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg,
 	if (!dev->tgt_available_prots) {
 		struct nfc_target nfc_target;
 
-		nfc_dev_dbg(&dev->interface->dev, "Creating new target");
+		dev_dbg(&dev->interface->dev, "Creating new target\n");
 
 		nfc_target.supported_protocols = NFC_PROTO_NFC_DEP_MASK;
 		nfc_target.nfcid1_len = 10;
@@ -2166,10 +2156,9 @@ static int pn533_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target,
 	struct sk_buff *skb;
 	int rc, skb_len;
 	u8 *next, *arg, nfcid3[NFC_NFCID3_MAXSIZE];
-
 	u8 passive_data[PASSIVE_DATA_LEN] = {0x00, 0xff, 0xff, 0x00, 0x3};
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	if (dev->poll_mod_count) {
 		nfc_dev_err(&dev->interface->dev,
@@ -2249,7 +2238,7 @@ static int pn533_dep_link_down(struct nfc_dev *nfc_dev)
 {
 	struct pn533 *dev = nfc_get_drvdata(nfc_dev);
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	pn533_poll_reset_mod_list(dev);
 
@@ -2274,7 +2263,7 @@ static struct sk_buff *pn533_build_response(struct pn533 *dev)
 	struct sk_buff *skb, *tmp, *t;
 	unsigned int skb_len = 0, tmp_len = 0;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	if (skb_queue_empty(&dev->resp_q))
 		return NULL;
@@ -2287,8 +2276,8 @@ static struct sk_buff *pn533_build_response(struct pn533 *dev)
 	skb_queue_walk_safe(&dev->resp_q, tmp, t)
 		skb_len += tmp->len;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s total length %d\n",
-		    __func__, skb_len);
+	dev_dbg(&dev->interface->dev, "%s total length %d\n",
+		__func__, skb_len);
 
 	skb = alloc_skb(skb_len, GFP_KERNEL);
 	if (skb == NULL)
@@ -2315,7 +2304,7 @@ static int pn533_data_exchange_complete(struct pn533 *dev, void *_arg,
 	int rc = 0;
 	u8 status, ret, mi;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	if (IS_ERR(resp)) {
 		rc = PTR_ERR(resp);
@@ -2420,7 +2409,7 @@ static int pn533_transceive(struct nfc_dev *nfc_dev,
 	struct pn533_data_exchange_arg *arg = NULL;
 	int rc;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	if (!dev->tgt_active_prot) {
 		nfc_dev_err(&dev->interface->dev,
@@ -2487,7 +2476,7 @@ static int pn533_tm_send_complete(struct pn533 *dev, void *arg,
 {
 	u8 status;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	if (IS_ERR(resp))
 		return PTR_ERR(resp);
@@ -2514,7 +2503,7 @@ static int pn533_tm_send(struct nfc_dev *nfc_dev, struct sk_buff *skb)
 	struct pn533 *dev = nfc_get_drvdata(nfc_dev);
 	int rc;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	if (skb->len > PN533_CMD_DATAEXCH_DATA_MAXLEN) {
 		nfc_dev_err(&dev->interface->dev,
@@ -2534,11 +2523,10 @@ static int pn533_tm_send(struct nfc_dev *nfc_dev, struct sk_buff *skb)
 static void pn533_wq_mi_recv(struct work_struct *work)
 {
 	struct pn533 *dev = container_of(work, struct pn533, mi_rx_work);
-
 	struct sk_buff *skb;
 	int rc;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	skb = pn533_alloc_skb(dev, PN533_CMD_DATAEXCH_HEAD_LEN);
 	if (!skb)
@@ -2587,7 +2575,7 @@ static void pn533_wq_mi_send(struct work_struct *work)
 	struct sk_buff *skb;
 	int rc;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	/* Grab the first skb in the queue */
 	skb = skb_dequeue(&dev->fragment_skb);
@@ -2641,10 +2629,9 @@ static int pn533_set_configuration(struct pn533 *dev, u8 cfgitem, u8 *cfgdata,
 {
 	struct sk_buff *skb;
 	struct sk_buff *resp;
-
 	int skb_len;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	skb_len = sizeof(cfgitem) + cfgdata_len; /* cfgitem + cfgdata */
 
@@ -2691,7 +2678,7 @@ static int pn533_pasori_fw_reset(struct pn533 *dev)
 	struct sk_buff *skb;
 	struct sk_buff *resp;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	skb = pn533_alloc_skb(dev, sizeof(u8));
 	if (!skb)
@@ -2717,7 +2704,7 @@ static void pn533_acr122_poweron_rdr_resp(struct urb *urb)
 {
 	struct pn533_acr122_poweron_rdr_arg *arg = urb->context;
 
-	nfc_dev_dbg(&urb->dev->dev, "%s", __func__);
+	dev_dbg(&urb->dev->dev, "%s\n", __func__);
 
 	print_hex_dump_debug("ACR122 RX: ", DUMP_PREFIX_NONE, 16, 1,
 		       urb->transfer_buffer, urb->transfer_buffer_length,
@@ -2737,7 +2724,7 @@ static int pn533_acr122_poweron_rdr(struct pn533 *dev)
 	void *cntx;
 	struct pn533_acr122_poweron_rdr_arg arg;
 
-	nfc_dev_dbg(&dev->interface->dev, "%s", __func__);
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	init_completion(&arg.done);
 	cntx = dev->in_urb->context;  /* backup context */
diff --git a/include/net/nfc/nfc.h b/include/net/nfc/nfc.h
index e34859423105..a164c46bed7e 100644
--- a/include/net/nfc/nfc.h
+++ b/include/net/nfc/nfc.h
@@ -30,7 +30,6 @@
 
 #define nfc_dev_info(dev, fmt, arg...) dev_info((dev), "NFC: " fmt "\n", ## arg)
 #define nfc_dev_err(dev, fmt, arg...) dev_err((dev), "NFC: " fmt "\n", ## arg)
-#define nfc_dev_dbg(dev, fmt, arg...) dev_dbg((dev), fmt "\n", ## arg)
 
 struct nfc_dev;
 
-- 
cgit 


From 073a625f0b80fb7613220a56375b0f3d2831af1b Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 5 Apr 2013 12:27:38 -0700
Subject: NFC: Convert nfc_dev_info and nfc_dev_err to nfc_<level>

Use a more standard kernel style macro logging name.

Standardize the spacing of the "NFC: " prefix.
Add \n to uses, remove from macro.
Fix the defective uses that already had a \n.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/nfc/nfcsim.c    |  14 ++--
 drivers/nfc/nfcwilink.c |  44 ++++++------
 drivers/nfc/pn533.c     | 175 +++++++++++++++++++++++-------------------------
 include/net/nfc/nfc.h   |   4 +-
 4 files changed, 115 insertions(+), 122 deletions(-)

diff --git a/drivers/nfc/nfcsim.c b/drivers/nfc/nfcsim.c
index 4a614794ea61..93111fa8d282 100644
--- a/drivers/nfc/nfcsim.c
+++ b/drivers/nfc/nfcsim.c
@@ -19,7 +19,7 @@
 #include <linux/nfc.h>
 #include <net/nfc/nfc.h>
 
-#define DEV_ERR(_dev, fmt, args...) nfc_dev_err(&_dev->nfc_dev->dev, \
+#define DEV_ERR(_dev, fmt, args...) nfc_err(&_dev->nfc_dev->dev, \
 						"%s: " fmt, __func__, ## args)
 
 #define DEV_DBG(_dev, fmt, args...) dev_dbg(&_dev->nfc_dev->dev, \
@@ -143,7 +143,7 @@ static int nfcsim_dep_link_up(struct nfc_dev *nfc_dev,
 
 	remote_gb = nfc_get_local_general_bytes(peer->nfc_dev, &remote_gb_len);
 	if (!remote_gb) {
-		DEV_ERR(peer, "Can't get remote general bytes");
+		DEV_ERR(peer, "Can't get remote general bytes\n");
 
 		mutex_unlock(&peer->lock);
 		return -EINVAL;
@@ -155,7 +155,7 @@ static int nfcsim_dep_link_up(struct nfc_dev *nfc_dev,
 
 	rc = nfc_set_remote_general_bytes(nfc_dev, remote_gb, remote_gb_len);
 	if (rc) {
-		DEV_ERR(dev, "Can't set remote general bytes");
+		DEV_ERR(dev, "Can't set remote general bytes\n");
 		mutex_unlock(&dev->lock);
 		return rc;
 	}
@@ -188,7 +188,7 @@ static int nfcsim_start_poll(struct nfc_dev *nfc_dev,
 	mutex_lock(&dev->lock);
 
 	if (dev->polling_mode != NFCSIM_POLL_NONE) {
-		DEV_ERR(dev, "Already in polling mode");
+		DEV_ERR(dev, "Already in polling mode\n");
 		rc = -EBUSY;
 		goto exit;
 	}
@@ -200,7 +200,7 @@ static int nfcsim_start_poll(struct nfc_dev *nfc_dev,
 		dev->polling_mode |= NFCSIM_POLL_TARGET;
 
 	if (dev->polling_mode == NFCSIM_POLL_NONE) {
-		DEV_ERR(dev, "Unsupported polling mode");
+		DEV_ERR(dev, "Unsupported polling mode\n");
 		rc = -EINVAL;
 		goto exit;
 	}
@@ -267,7 +267,7 @@ static void nfcsim_wq_recv(struct work_struct *work)
 
 	if (dev->initiator) {
 		if (!dev->cb) {
-			DEV_ERR(dev, "Null recv callback");
+			DEV_ERR(dev, "Null recv callback\n");
 			dev_kfree_skb(dev->clone_skb);
 			goto exit;
 		}
@@ -310,7 +310,7 @@ static int nfcsim_tx(struct nfc_dev *nfc_dev, struct nfc_target *target,
 	peer->clone_skb = skb_clone(skb, GFP_KERNEL);
 
 	if (!peer->clone_skb) {
-		DEV_ERR(dev, "skb_clone failed");
+		DEV_ERR(dev, "skb_clone failed\n");
 		mutex_unlock(&peer->lock);
 		err = -ENOMEM;
 		goto exit;
diff --git a/drivers/nfc/nfcwilink.c b/drivers/nfc/nfcwilink.c
index ec9dbf4fad83..ebf6da75bd40 100644
--- a/drivers/nfc/nfcwilink.c
+++ b/drivers/nfc/nfcwilink.c
@@ -149,8 +149,8 @@ static int nfcwilink_get_bts_file_name(struct nfcwilink *drv, char *file_name)
 	skb = nfcwilink_skb_alloc(sizeof(struct nci_vs_nfcc_info_cmd),
 					GFP_KERNEL);
 	if (!skb) {
-		nfc_dev_err(&drv->pdev->dev,
-				"no memory for nci_vs_nfcc_info_cmd");
+		nfc_err(&drv->pdev->dev,
+			"no memory for nci_vs_nfcc_info_cmd\n");
 		return -ENOMEM;
 	}
 
@@ -180,8 +180,7 @@ static int nfcwilink_get_bts_file_name(struct nfcwilink *drv, char *file_name)
 		drv->nfcc_info.plen, drv->nfcc_info.status);
 
 	if ((drv->nfcc_info.plen != 5) || (drv->nfcc_info.status != 0)) {
-		nfc_dev_err(&drv->pdev->dev,
-				"invalid nci_vs_nfcc_info_rsp");
+		nfc_err(&drv->pdev->dev, "invalid nci_vs_nfcc_info_rsp\n");
 		return -EINVAL;
 	}
 
@@ -192,7 +191,7 @@ static int nfcwilink_get_bts_file_name(struct nfcwilink *drv, char *file_name)
 			drv->nfcc_info.sw_ver_z,
 			drv->nfcc_info.patch_id);
 
-	nfc_dev_info(&drv->pdev->dev, "nfcwilink FW file name: %s", file_name);
+	nfc_info(&drv->pdev->dev, "nfcwilink FW file name: %s\n", file_name);
 
 	return 0;
 }
@@ -209,8 +208,8 @@ static int nfcwilink_send_bts_cmd(struct nfcwilink *drv, __u8 *data, int len)
 		(len > BTS_FILE_CMD_MAX_LEN) ||
 		(hdr->chnl != NFCWILINK_CHNL) ||
 		(hdr->opcode != NFCWILINK_OPCODE)) {
-		nfc_dev_err(&drv->pdev->dev,
-			"ignoring invalid bts cmd, len %d, chnl %d, opcode %d",
+		nfc_err(&drv->pdev->dev,
+			"ignoring invalid bts cmd, len %d, chnl %d, opcode %d\n",
 			len, hdr->chnl, hdr->opcode);
 		return 0;
 	}
@@ -221,7 +220,7 @@ static int nfcwilink_send_bts_cmd(struct nfcwilink *drv, __u8 *data, int len)
 
 	skb = nfcwilink_skb_alloc(len, GFP_KERNEL);
 	if (!skb) {
-		nfc_dev_err(&drv->pdev->dev, "no memory for bts cmd");
+		nfc_err(&drv->pdev->dev, "no memory for bts cmd\n");
 		return -ENOMEM;
 	}
 
@@ -236,8 +235,8 @@ static int nfcwilink_send_bts_cmd(struct nfcwilink *drv, __u8 *data, int len)
 	dev_dbg(&drv->pdev->dev, "wait_for_completion_timeout returned %ld\n",
 		comp_ret);
 	if (comp_ret == 0) {
-		nfc_dev_err(&drv->pdev->dev,
-				"timeout on wait_for_completion_timeout");
+		nfc_err(&drv->pdev->dev,
+			"timeout on wait_for_completion_timeout\n");
 		return -ETIMEDOUT;
 	}
 
@@ -260,7 +259,7 @@ static int nfcwilink_download_fw(struct nfcwilink *drv)
 
 	rc = request_firmware(&fw, file_name, &drv->pdev->dev);
 	if (rc) {
-		nfc_dev_err(&drv->pdev->dev, "request_firmware failed %d", rc);
+		nfc_err(&drv->pdev->dev, "request_firmware failed %d\n", rc);
 
 		/* if the file is not found, don't exit with failure */
 		if (rc == -ENOENT)
@@ -280,7 +279,7 @@ static int nfcwilink_download_fw(struct nfcwilink *drv)
 
 	if (__le32_to_cpu(((struct bts_file_hdr *)ptr)->magic) !=
 			BTS_FILE_HDR_MAGIC) {
-		nfc_dev_err(&drv->pdev->dev, "wrong bts magic number");
+		nfc_err(&drv->pdev->dev, "wrong bts magic number\n");
 		rc = -EINVAL;
 		goto release_fw;
 	}
@@ -361,7 +360,7 @@ static long nfcwilink_receive(void *priv_data, struct sk_buff *skb)
 	/* Forward skb to NCI core layer */
 	rc = nci_recv_frame(drv->ndev, skb);
 	if (rc < 0) {
-		nfc_dev_err(&drv->pdev->dev, "nci_recv_frame failed %d", rc);
+		nfc_err(&drv->pdev->dev, "nci_recv_frame failed %d\n", rc);
 		return rc;
 	}
 
@@ -414,13 +413,12 @@ static int nfcwilink_open(struct nci_dev *ndev)
 				goto clear_exit;
 			} else if (drv->st_register_cb_status != 0) {
 				rc = drv->st_register_cb_status;
-				nfc_dev_err(&drv->pdev->dev,
-				"st_register_cb failed %d", rc);
+				nfc_err(&drv->pdev->dev,
+					"st_register_cb failed %d\n", rc);
 				goto clear_exit;
 			}
 		} else {
-			nfc_dev_err(&drv->pdev->dev,
-				"st_register failed %d", rc);
+			nfc_err(&drv->pdev->dev, "st_register failed %d\n", rc);
 			goto clear_exit;
 		}
 	}
@@ -430,8 +428,8 @@ static int nfcwilink_open(struct nci_dev *ndev)
 	drv->st_write = nfcwilink_proto.write;
 
 	if (nfcwilink_download_fw(drv)) {
-		nfc_dev_err(&drv->pdev->dev, "nfcwilink_download_fw failed %d",
-				rc);
+		nfc_err(&drv->pdev->dev, "nfcwilink_download_fw failed %d\n",
+			rc);
 		/* open should succeed, even if the FW download failed */
 	}
 
@@ -454,7 +452,7 @@ static int nfcwilink_close(struct nci_dev *ndev)
 
 	rc = st_unregister(&nfcwilink_proto);
 	if (rc)
-		nfc_dev_err(&drv->pdev->dev, "st_unregister failed %d", rc);
+		nfc_err(&drv->pdev->dev, "st_unregister failed %d\n", rc);
 
 	drv->st_write = NULL;
 
@@ -485,7 +483,7 @@ static int nfcwilink_send(struct nci_dev *ndev, struct sk_buff *skb)
 	len = drv->st_write(skb);
 	if (len < 0) {
 		kfree_skb(skb);
-		nfc_dev_err(&drv->pdev->dev, "st_write failed %ld", len);
+		nfc_err(&drv->pdev->dev, "st_write failed %ld\n", len);
 		return -EFAULT;
 	}
 
@@ -523,7 +521,7 @@ static int nfcwilink_probe(struct platform_device *pdev)
 					NFCWILINK_HDR_LEN,
 					0);
 	if (!drv->ndev) {
-		nfc_dev_err(&pdev->dev, "nci_allocate_device failed");
+		nfc_err(&pdev->dev, "nci_allocate_device failed\n");
 		rc = -ENOMEM;
 		goto exit;
 	}
@@ -533,7 +531,7 @@ static int nfcwilink_probe(struct platform_device *pdev)
 
 	rc = nci_register_device(drv->ndev);
 	if (rc < 0) {
-		nfc_dev_err(&pdev->dev, "nci_register_device failed %d", rc);
+		nfc_err(&pdev->dev, "nci_register_device failed %d\n", rc);
 		goto free_dev_exit;
 	}
 
diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index e64bea53f0c8..a66dff6ed51c 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -728,8 +728,8 @@ static void pn533_recv_response(struct urb *urb)
 		goto sched_wq;
 	case -ESHUTDOWN:
 	default:
-		nfc_dev_err(&dev->interface->dev,
-			    "Urb failure (status %d)", urb->status);
+		nfc_err(&dev->interface->dev,
+			"Urb failure (status %d)\n", urb->status);
 		goto sched_wq;
 	}
 
@@ -740,14 +740,14 @@ static void pn533_recv_response(struct urb *urb)
 			     dev->ops->rx_frame_size(in_frame), false);
 
 	if (!dev->ops->rx_is_frame_valid(in_frame, dev)) {
-		nfc_dev_err(&dev->interface->dev, "Received an invalid frame");
+		nfc_err(&dev->interface->dev, "Received an invalid frame\n");
 		cmd->status = -EIO;
 		goto sched_wq;
 	}
 
 	if (!pn533_rx_frame_is_cmd_response(dev, in_frame)) {
-		nfc_dev_err(&dev->interface->dev,
-			    "It it not the response to the last command");
+		nfc_err(&dev->interface->dev,
+			"It it not the response to the last command\n");
 		cmd->status = -EIO;
 		goto sched_wq;
 	}
@@ -783,23 +783,23 @@ static void pn533_recv_ack(struct urb *urb)
 		goto sched_wq;
 	case -ESHUTDOWN:
 	default:
-		nfc_dev_err(&dev->interface->dev,
-			    "Urb failure (status %d)", urb->status);
+		nfc_err(&dev->interface->dev,
+			"Urb failure (status %d)\n", urb->status);
 		goto sched_wq;
 	}
 
 	in_frame = dev->in_urb->transfer_buffer;
 
 	if (!pn533_std_rx_frame_is_ack(in_frame)) {
-		nfc_dev_err(&dev->interface->dev, "Received an invalid ack");
+		nfc_err(&dev->interface->dev, "Received an invalid ack\n");
 		cmd->status = -EIO;
 		goto sched_wq;
 	}
 
 	rc = pn533_submit_urb_for_response(dev, GFP_ATOMIC);
 	if (rc) {
-		nfc_dev_err(&dev->interface->dev,
-			    "usb_submit_urb failed with result %d", rc);
+		nfc_err(&dev->interface->dev,
+			"usb_submit_urb failed with result %d\n", rc);
 		cmd->status = rc;
 		goto sched_wq;
 	}
@@ -1172,8 +1172,8 @@ static void pn533_send_complete(struct urb *urb)
 		break;
 	case -ESHUTDOWN:
 	default:
-		nfc_dev_err(&dev->interface->dev,
-			    "Urb failure (status %d)", urb->status);
+		nfc_err(&dev->interface->dev, "Urb failure (status %d)\n",
+			urb->status);
 	}
 }
 
@@ -1473,8 +1473,8 @@ static int pn533_target_found(struct pn533 *dev, u8 tg, u8 *tgdata,
 		rc = pn533_target_found_type_b(&nfc_tgt, tgdata, tgdata_len);
 		break;
 	default:
-		nfc_dev_err(&dev->interface->dev,
-			    "Unknown current poll modulation");
+		nfc_err(&dev->interface->dev,
+			"Unknown current poll modulation\n");
 		return -EPROTO;
 	}
 
@@ -1695,8 +1695,8 @@ static int pn533_init_target_complete(struct pn533 *dev, struct sk_buff *resp)
 	rc = nfc_tm_activated(dev->nfc_dev, NFC_PROTO_NFC_DEP_MASK,
 			      comm_mode, gb, gb_len);
 	if (rc < 0) {
-		nfc_dev_err(&dev->interface->dev,
-			    "Error when signaling target activation");
+		nfc_err(&dev->interface->dev,
+			"Error when signaling target activation\n");
 		return rc;
 	}
 
@@ -1730,8 +1730,7 @@ static int pn533_rf_complete(struct pn533 *dev, void *arg,
 	if (IS_ERR(resp)) {
 		rc = PTR_ERR(resp);
 
-		nfc_dev_err(&dev->interface->dev, "%s RF setting error %d",
-			    __func__, rc);
+		nfc_err(&dev->interface->dev, "RF setting error %d", rc);
 
 		return rc;
 	}
@@ -1762,7 +1761,7 @@ static void pn533_wq_rf(struct work_struct *work)
 				  pn533_rf_complete, NULL);
 	if (rc < 0) {
 		dev_kfree_skb(skb);
-		nfc_dev_err(&dev->interface->dev, "RF setting error %d", rc);
+		nfc_err(&dev->interface->dev, "RF setting error %d\n", rc);
 	}
 
 	return;
@@ -1779,8 +1778,8 @@ static int pn533_poll_complete(struct pn533 *dev, void *arg,
 	if (IS_ERR(resp)) {
 		rc = PTR_ERR(resp);
 
-		nfc_dev_err(&dev->interface->dev, "%s  Poll complete error %d",
-			    __func__, rc);
+		nfc_err(&dev->interface->dev, "%s  Poll complete error %d\n",
+			__func__, rc);
 
 		if (rc == -ENOENT) {
 			if (dev->poll_mod_count != 0)
@@ -1788,8 +1787,8 @@ static int pn533_poll_complete(struct pn533 *dev, void *arg,
 			else
 				goto stop_poll;
 		} else if (rc < 0) {
-			nfc_dev_err(&dev->interface->dev,
-				    "Error %d when running poll", rc);
+			nfc_err(&dev->interface->dev,
+				"Error %d when running poll\n", rc);
 			goto stop_poll;
 		}
 	}
@@ -1821,7 +1820,7 @@ done:
 	return rc;
 
 stop_poll:
-	nfc_dev_err(&dev->interface->dev, "Polling operation has been stopped");
+	nfc_err(&dev->interface->dev, "Polling operation has been stopped\n");
 
 	pn533_poll_reset_mod_list(dev);
 	dev->poll_protocols = 0;
@@ -1863,7 +1862,7 @@ static int pn533_send_poll_frame(struct pn533 *dev)
 	}
 
 	if (!skb) {
-		nfc_dev_err(&dev->interface->dev, "Failed to allocate skb.");
+		nfc_err(&dev->interface->dev, "Failed to allocate skb\n");
 		return -ENOMEM;
 	}
 
@@ -1871,7 +1870,7 @@ static int pn533_send_poll_frame(struct pn533 *dev)
 				  NULL);
 	if (rc < 0) {
 		dev_kfree_skb(skb);
-		nfc_dev_err(&dev->interface->dev, "Polling loop error %d", rc);
+		nfc_err(&dev->interface->dev, "Polling loop error %d\n", rc);
 	}
 
 	return rc;
@@ -1915,14 +1914,14 @@ static int pn533_start_poll(struct nfc_dev *nfc_dev,
 		__func__, im_protocols, tm_protocols);
 
 	if (dev->tgt_active_prot) {
-		nfc_dev_err(&dev->interface->dev,
-			    "Cannot poll with a target already activated");
+		nfc_err(&dev->interface->dev,
+			"Cannot poll with a target already activated\n");
 		return -EBUSY;
 	}
 
 	if (dev->tgt_mode) {
-		nfc_dev_err(&dev->interface->dev,
-			    "Cannot poll while already being activated");
+		nfc_err(&dev->interface->dev,
+			"Cannot poll while already being activated\n");
 		return -EBUSY;
 	}
 
@@ -1985,8 +1984,8 @@ static int pn533_activate_target_nfcdep(struct pn533 *dev)
 	rsp = (struct pn533_cmd_activate_response *)resp->data;
 	rc = rsp->status & PN533_CMD_RET_MASK;
 	if (rc != PN533_CMD_RET_SUCCESS) {
-		nfc_dev_err(&dev->interface->dev,
-			    "Target activation failed (error 0x%x)", rc);
+		nfc_err(&dev->interface->dev,
+			"Target activation failed (error 0x%x)\n", rc);
 		dev_kfree_skb(resp);
 		return -EIO;
 	}
@@ -2009,35 +2008,35 @@ static int pn533_activate_target(struct nfc_dev *nfc_dev,
 		__func__, protocol);
 
 	if (dev->poll_mod_count) {
-		dev_err(&dev->interface->dev,
+		nfc_err(&dev->interface->dev,
 			"Cannot activate while polling\n");
 		return -EBUSY;
 	}
 
 	if (dev->tgt_active_prot) {
-		nfc_dev_err(&dev->interface->dev,
-			    "There is already an active target");
+		nfc_err(&dev->interface->dev,
+			"There is already an active target\n");
 		return -EBUSY;
 	}
 
 	if (!dev->tgt_available_prots) {
-		nfc_dev_err(&dev->interface->dev,
-			    "There is no available target to activate");
+		nfc_err(&dev->interface->dev,
+			"There is no available target to activate\n");
 		return -EINVAL;
 	}
 
 	if (!(dev->tgt_available_prots & (1 << protocol))) {
-		nfc_dev_err(&dev->interface->dev,
-			    "Target doesn't support requested proto %u",
-			    protocol);
+		nfc_err(&dev->interface->dev,
+			"Target doesn't support requested proto %u\n",
+			protocol);
 		return -EINVAL;
 	}
 
 	if (protocol == NFC_PROTO_NFC_DEP) {
 		rc = pn533_activate_target_nfcdep(dev);
 		if (rc) {
-			nfc_dev_err(&dev->interface->dev,
-				    "Activating target with DEP failed %d", rc);
+			nfc_err(&dev->interface->dev,
+				"Activating target with DEP failed %d\n", rc);
 			return rc;
 		}
 	}
@@ -2059,7 +2058,7 @@ static void pn533_deactivate_target(struct nfc_dev *nfc_dev,
 	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	if (!dev->tgt_active_prot) {
-		nfc_dev_err(&dev->interface->dev, "There is no active target");
+		nfc_err(&dev->interface->dev, "There is no active target\n");
 		return;
 	}
 
@@ -2078,8 +2077,8 @@ static void pn533_deactivate_target(struct nfc_dev *nfc_dev,
 
 	rc = resp->data[0] & PN533_CMD_RET_MASK;
 	if (rc != PN533_CMD_RET_SUCCESS)
-		nfc_dev_err(&dev->interface->dev,
-			    "Error 0x%x when releasing the target", rc);
+		nfc_err(&dev->interface->dev,
+			"Error 0x%x when releasing the target\n", rc);
 
 	dev_kfree_skb(resp);
 	return;
@@ -2101,8 +2100,8 @@ static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg,
 
 	if (dev->tgt_available_prots &&
 	    !(dev->tgt_available_prots & (1 << NFC_PROTO_NFC_DEP))) {
-		nfc_dev_err(&dev->interface->dev,
-			    "The target does not support DEP");
+		nfc_err(&dev->interface->dev,
+			"The target does not support DEP\n");
 		rc =  -EINVAL;
 		goto error;
 	}
@@ -2111,8 +2110,8 @@ static int pn533_in_dep_link_up_complete(struct pn533 *dev, void *arg,
 
 	rc = rsp->status & PN533_CMD_RET_MASK;
 	if (rc != PN533_CMD_RET_SUCCESS) {
-		nfc_dev_err(&dev->interface->dev,
-			    "Bringing DEP link up failed (error 0x%x)", rc);
+		nfc_err(&dev->interface->dev,
+			"Bringing DEP link up failed (error 0x%x)\n", rc);
 		goto error;
 	}
 
@@ -2161,14 +2160,14 @@ static int pn533_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target,
 	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	if (dev->poll_mod_count) {
-		nfc_dev_err(&dev->interface->dev,
-			    "Cannot bring the DEP link up while polling");
+		nfc_err(&dev->interface->dev,
+			"Cannot bring the DEP link up while polling\n");
 		return -EBUSY;
 	}
 
 	if (dev->tgt_active_prot) {
-		nfc_dev_err(&dev->interface->dev,
-			    "There is already an active target");
+		nfc_err(&dev->interface->dev,
+			"There is already an active target\n");
 		return -EBUSY;
 	}
 
@@ -2318,8 +2317,8 @@ static int pn533_data_exchange_complete(struct pn533 *dev, void *_arg,
 	skb_pull(resp, sizeof(status));
 
 	if (ret != PN533_CMD_RET_SUCCESS) {
-		nfc_dev_err(&dev->interface->dev,
-			    "Exchanging data failed (error 0x%x)", ret);
+		nfc_err(&dev->interface->dev,
+			"Exchanging data failed (error 0x%x)\n", ret);
 		rc = -EIO;
 		goto error;
 	}
@@ -2412,8 +2411,8 @@ static int pn533_transceive(struct nfc_dev *nfc_dev,
 	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	if (!dev->tgt_active_prot) {
-		nfc_dev_err(&dev->interface->dev,
-			    "Can't exchange data if there is no active target");
+		nfc_err(&dev->interface->dev,
+			"Can't exchange data if there is no active target\n");
 		rc = -EINVAL;
 		goto error;
 	}
@@ -2506,9 +2505,9 @@ static int pn533_tm_send(struct nfc_dev *nfc_dev, struct sk_buff *skb)
 	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
 	if (skb->len > PN533_CMD_DATAEXCH_DATA_MAXLEN) {
-		nfc_dev_err(&dev->interface->dev,
-			    "Data length greater than the max allowed: %d",
-			    PN533_CMD_DATAEXCH_DATA_MAXLEN);
+		nfc_err(&dev->interface->dev,
+			"Data length greater than the max allowed: %d\n",
+			PN533_CMD_DATAEXCH_DATA_MAXLEN);
 		return -ENOSYS;
 	}
 
@@ -2558,8 +2557,8 @@ static void pn533_wq_mi_recv(struct work_struct *work)
 	if (rc == 0) /* success */
 		return;
 
-	nfc_dev_err(&dev->interface->dev,
-		    "Error %d when trying to perform data_exchange", rc);
+	nfc_err(&dev->interface->dev,
+		"Error %d when trying to perform data_exchange\n", rc);
 
 	dev_kfree_skb(skb);
 	kfree(dev->cmd_complete_mi_arg);
@@ -2613,8 +2612,8 @@ static void pn533_wq_mi_send(struct work_struct *work)
 	if (rc == 0) /* success */
 		return;
 
-	nfc_dev_err(&dev->interface->dev,
-		    "Error %d when trying to perform data_exchange", rc);
+	nfc_err(&dev->interface->dev,
+		"Error %d when trying to perform data_exchange\n", rc);
 
 	dev_kfree_skb(skb);
 	kfree(dev->cmd_complete_dep_arg);
@@ -2742,16 +2741,15 @@ static int pn533_acr122_poweron_rdr(struct pn533 *dev)
 
 	rc = usb_submit_urb(dev->out_urb, GFP_KERNEL);
 	if (rc) {
-		nfc_dev_err(&dev->interface->dev,
-			    "Reader power on cmd error %d", rc);
+		nfc_err(&dev->interface->dev,
+			"Reader power on cmd error %d\n", rc);
 		return rc;
 	}
 
 	rc =  usb_submit_urb(dev->in_urb, GFP_KERNEL);
 	if (rc) {
-		nfc_dev_err(&dev->interface->dev,
-			    "Can't submit for reader power on cmd response %d",
-			    rc);
+		nfc_err(&dev->interface->dev,
+			"Can't submit reader poweron cmd response %d\n", rc);
 		return rc;
 	}
 
@@ -2772,8 +2770,7 @@ static int pn533_rf_field(struct nfc_dev *nfc_dev, u8 rf)
 	rc = pn533_set_configuration(dev, PN533_CFGITEM_RF_FIELD,
 				     (u8 *)&rf_field, 1);
 	if (rc) {
-		nfc_dev_err(&dev->interface->dev,
-			    "Error on setting RF field");
+		nfc_err(&dev->interface->dev, "Error on setting RF field\n");
 		return rc;
 	}
 
@@ -2826,16 +2823,16 @@ static int pn533_setup(struct pn533 *dev)
 		break;
 
 	default:
-		nfc_dev_err(&dev->interface->dev, "Unknown device type %d\n",
-			    dev->device_type);
+		nfc_err(&dev->interface->dev, "Unknown device type %d\n",
+			dev->device_type);
 		return -EINVAL;
 	}
 
 	rc = pn533_set_configuration(dev, PN533_CFGITEM_MAX_RETRIES,
 				     (u8 *)&max_retries, sizeof(max_retries));
 	if (rc) {
-		nfc_dev_err(&dev->interface->dev,
-			    "Error on setting MAX_RETRIES config");
+		nfc_err(&dev->interface->dev,
+			"Error on setting MAX_RETRIES config\n");
 		return rc;
 	}
 
@@ -2843,8 +2840,7 @@ static int pn533_setup(struct pn533 *dev)
 	rc = pn533_set_configuration(dev, PN533_CFGITEM_TIMING,
 				     (u8 *)&timing, sizeof(timing));
 	if (rc) {
-		nfc_dev_err(&dev->interface->dev,
-			    "Error on setting RF timings");
+		nfc_err(&dev->interface->dev, "Error on setting RF timings\n");
 		return rc;
 	}
 
@@ -2858,8 +2854,8 @@ static int pn533_setup(struct pn533 *dev)
 		rc = pn533_set_configuration(dev, PN533_CFGITEM_PASORI,
 					     pasori_cfg, 3);
 		if (rc) {
-			nfc_dev_err(&dev->interface->dev,
-				    "Error while settings PASORI config");
+			nfc_err(&dev->interface->dev,
+				"Error while settings PASORI config\n");
 			return rc;
 		}
 
@@ -2904,8 +2900,8 @@ static int pn533_probe(struct usb_interface *interface,
 	}
 
 	if (!in_endpoint || !out_endpoint) {
-		nfc_dev_err(&interface->dev,
-			    "Could not find bulk-in or bulk-out endpoint");
+		nfc_err(&interface->dev,
+			"Could not find bulk-in or bulk-out endpoint\n");
 		rc = -ENODEV;
 		goto error;
 	}
@@ -2965,16 +2961,15 @@ static int pn533_probe(struct usb_interface *interface,
 
 		rc = pn533_acr122_poweron_rdr(dev);
 		if (rc < 0) {
-			nfc_dev_err(&dev->interface->dev,
-				    "Couldn't poweron the reader (error %d)",
-				    rc);
+			nfc_err(&dev->interface->dev,
+				"Couldn't poweron the reader (error %d)\n", rc);
 			goto destroy_wq;
 		}
 		break;
 
 	default:
-		nfc_dev_err(&dev->interface->dev, "Unknown device type %d\n",
-			    dev->device_type);
+		nfc_err(&dev->interface->dev, "Unknown device type %d\n",
+			dev->device_type);
 		rc = -EINVAL;
 		goto destroy_wq;
 	}
@@ -2984,9 +2979,9 @@ static int pn533_probe(struct usb_interface *interface,
 	if (rc < 0)
 		goto destroy_wq;
 
-	nfc_dev_info(&dev->interface->dev,
-		     "NXP PN5%02X firmware ver %d.%d now attached",
-		     fw_ver.ic, fw_ver.ver, fw_ver.rev);
+	nfc_info(&dev->interface->dev,
+		 "NXP PN5%02X firmware ver %d.%d now attached\n",
+		 fw_ver.ic, fw_ver.ver, fw_ver.rev);
 
 
 	dev->nfc_dev = nfc_allocate_device(&pn533_nfc_ops, protocols,
@@ -3057,7 +3052,7 @@ static void pn533_disconnect(struct usb_interface *interface)
 	usb_free_urb(dev->out_urb);
 	kfree(dev);
 
-	nfc_dev_info(&interface->dev, "NXP PN533 NFC device disconnected");
+	nfc_info(&interface->dev, "NXP PN533 NFC device disconnected\n");
 }
 
 static struct usb_driver pn533_driver = {
diff --git a/include/net/nfc/nfc.h b/include/net/nfc/nfc.h
index a164c46bed7e..f5c6a23636f1 100644
--- a/include/net/nfc/nfc.h
+++ b/include/net/nfc/nfc.h
@@ -28,8 +28,8 @@
 #include <linux/device.h>
 #include <linux/skbuff.h>
 
-#define nfc_dev_info(dev, fmt, arg...) dev_info((dev), "NFC: " fmt "\n", ## arg)
-#define nfc_dev_err(dev, fmt, arg...) dev_err((dev), "NFC: " fmt "\n", ## arg)
+#define nfc_info(dev, fmt, ...) dev_info((dev), "NFC: " fmt, ##__VA_ARGS__)
+#define nfc_err(dev, fmt, ...) dev_err((dev), "NFC: " fmt, ##__VA_ARGS__)
 
 struct nfc_dev;
 
-- 
cgit 


From 17936b43f0fdede23582d83a45622751409c99b9 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 5 Apr 2013 12:27:39 -0700
Subject: NFC: Standardize logging style

Use standardized styles to minimize coding defects.

Always use nfc_<level> where feasible.
Add \n to formats where appropriate.
Typo "it it" correction.
Add #define pr_fmt where appropriate.
Remove function tracing logging messages.
Remove OOM messages.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/nfc/mei_phy.c             |  6 ++++--
 drivers/nfc/microread/i2c.c       | 32 ++++++++++-------------------
 drivers/nfc/microread/mei.c       |  4 ++--
 drivers/nfc/microread/microread.c |  7 ++++---
 drivers/nfc/nfcwilink.c           |  2 +-
 drivers/nfc/pn533.c               |  5 ++---
 drivers/nfc/pn544/i2c.c           | 42 ++++++++++++++++++---------------------
 drivers/nfc/pn544/pn544.c         | 13 ++++++------
 8 files changed, 50 insertions(+), 61 deletions(-)

diff --git a/drivers/nfc/mei_phy.c b/drivers/nfc/mei_phy.c
index 606bf55e76ec..85f90090cc1d 100644
--- a/drivers/nfc/mei_phy.c
+++ b/drivers/nfc/mei_phy.c
@@ -18,6 +18,8 @@
  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/nfc.h>
@@ -60,13 +62,13 @@ int nfc_mei_phy_enable(void *phy_id)
 
 	r = mei_cl_enable_device(phy->device);
 	if (r < 0) {
-		pr_err("MEI_PHY: Could not enable device\n");
+		pr_err("Could not enable device\n");
 		return r;
 	}
 
 	r = mei_cl_register_event_cb(phy->device, nfc_mei_event_cb, phy);
 	if (r) {
-		pr_err("MEY_PHY: Event cb registration failed\n");
+		pr_err("Event cb registration failed\n");
 		mei_cl_disable_device(phy->device);
 		phy->powered = 0;
 
diff --git a/drivers/nfc/microread/i2c.c b/drivers/nfc/microread/i2c.c
index 101089495bf8..696e3467eccc 100644
--- a/drivers/nfc/microread/i2c.c
+++ b/drivers/nfc/microread/i2c.c
@@ -18,6 +18,8 @@
  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/i2c.h>
 #include <linux/delay.h>
@@ -95,12 +97,8 @@ static int check_crc(struct sk_buff *skb)
 		crc = crc ^ skb->data[i];
 
 	if (crc != skb->data[skb->len-1]) {
-		pr_err(MICROREAD_I2C_DRIVER_NAME
-		       ": CRC error 0x%x != 0x%x\n",
-		       crc, skb->data[skb->len-1]);
-
-		pr_info(DRIVER_DESC ": %s : BAD CRC\n", __func__);
-
+		pr_err("CRC error 0x%x != 0x%x\n", crc, skb->data[skb->len-1]);
+		pr_info("%s: BAD CRC\n", __func__);
 		return -EPERM;
 	}
 
@@ -160,18 +158,15 @@ static int microread_i2c_read(struct microread_i2c_phy *phy,
 	u8 tmp[MICROREAD_I2C_LLC_MAX_SIZE - 1];
 	struct i2c_client *client = phy->i2c_dev;
 
-	pr_debug("%s\n", __func__);
-
 	r = i2c_master_recv(client, &len, 1);
 	if (r != 1) {
-		dev_err(&client->dev, "cannot read len byte\n");
+		nfc_err(&client->dev, "cannot read len byte\n");
 		return -EREMOTEIO;
 	}
 
 	if ((len < MICROREAD_I2C_LLC_MIN_SIZE) ||
 	    (len > MICROREAD_I2C_LLC_MAX_SIZE)) {
-		dev_err(&client->dev, "invalid len byte\n");
-		pr_err("invalid len byte\n");
+		nfc_err(&client->dev, "invalid len byte\n");
 		r = -EBADMSG;
 		goto flush;
 	}
@@ -228,7 +223,6 @@ static irqreturn_t microread_i2c_irq_thread_fn(int irq, void *phy_id)
 	}
 
 	client = phy->i2c_dev;
-	dev_dbg(&client->dev, "IRQ\n");
 
 	if (phy->hard_fault != 0)
 		return IRQ_HANDLED;
@@ -263,20 +257,18 @@ static int microread_i2c_probe(struct i2c_client *client,
 		dev_get_platdata(&client->dev);
 	int r;
 
-	dev_dbg(&client->dev, "client %p", client);
+	dev_dbg(&client->dev, "client %p\n", client);
 
 	if (!pdata) {
-		dev_err(&client->dev, "client %p: missing platform data",
+		nfc_err(&client->dev, "client %p: missing platform data\n",
 			client);
 		return -EINVAL;
 	}
 
 	phy = devm_kzalloc(&client->dev, sizeof(struct microread_i2c_phy),
 			   GFP_KERNEL);
-	if (!phy) {
-		dev_err(&client->dev, "Can't allocate microread phy");
+	if (!phy)
 		return -ENOMEM;
-	}
 
 	i2c_set_clientdata(client, phy);
 	phy->i2c_dev = client;
@@ -285,7 +277,7 @@ static int microread_i2c_probe(struct i2c_client *client,
 				 IRQF_TRIGGER_RISING | IRQF_ONESHOT,
 				 MICROREAD_I2C_DRIVER_NAME, phy);
 	if (r) {
-		dev_err(&client->dev, "Unable to register IRQ handler");
+		nfc_err(&client->dev, "Unable to register IRQ handler\n");
 		return r;
 	}
 
@@ -296,7 +288,7 @@ static int microread_i2c_probe(struct i2c_client *client,
 	if (r < 0)
 		goto err_irq;
 
-	dev_info(&client->dev, "Probed");
+	nfc_info(&client->dev, "Probed");
 
 	return 0;
 
@@ -310,8 +302,6 @@ static int microread_i2c_remove(struct i2c_client *client)
 {
 	struct microread_i2c_phy *phy = i2c_get_clientdata(client);
 
-	dev_dbg(&client->dev, "%s\n", __func__);
-
 	microread_remove(phy->hdev);
 
 	free_irq(client->irq, phy);
diff --git a/drivers/nfc/microread/mei.c b/drivers/nfc/microread/mei.c
index cdf1bc53b257..72fafec3d460 100644
--- a/drivers/nfc/microread/mei.c
+++ b/drivers/nfc/microread/mei.c
@@ -18,6 +18,8 @@
  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
 #include <linux/nfc.h>
@@ -59,8 +61,6 @@ static int microread_mei_remove(struct mei_cl_device *device)
 {
 	struct nfc_mei_phy *phy = mei_cl_get_drvdata(device);
 
-	pr_info("Removing microread\n");
-
 	microread_remove(phy->hdev);
 
 	nfc_mei_phy_free(phy);
diff --git a/drivers/nfc/microread/microread.c b/drivers/nfc/microread/microread.c
index cdb9f6de132a..970ded6bfcf5 100644
--- a/drivers/nfc/microread/microread.c
+++ b/drivers/nfc/microread/microread.c
@@ -18,6 +18,8 @@
  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
@@ -546,7 +548,7 @@ exit:
 	kfree_skb(skb);
 
 	if (r)
-		pr_err("Failed to handle discovered target err=%d", r);
+		pr_err("Failed to handle discovered target err=%d\n", r);
 }
 
 static int microread_event_received(struct nfc_hci_dev *hdev, u8 gate,
@@ -656,7 +658,6 @@ int microread_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
 
 	info = kzalloc(sizeof(struct microread_info), GFP_KERNEL);
 	if (!info) {
-		pr_err("Cannot allocate memory for microread_info.\n");
 		r = -ENOMEM;
 		goto err_info_alloc;
 	}
@@ -686,7 +687,7 @@ int microread_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
 					     MICROREAD_CMD_TAILROOM,
 					     phy_payload);
 	if (!info->hdev) {
-		pr_err("Cannot allocate nfc hdev.\n");
+		pr_err("Cannot allocate nfc hdev\n");
 		r = -ENOMEM;
 		goto err_alloc_hdev;
 	}
diff --git a/drivers/nfc/nfcwilink.c b/drivers/nfc/nfcwilink.c
index ebf6da75bd40..0c79921b3870 100644
--- a/drivers/nfc/nfcwilink.c
+++ b/drivers/nfc/nfcwilink.c
@@ -171,7 +171,7 @@ static int nfcwilink_get_bts_file_name(struct nfcwilink *drv, char *file_name)
 	dev_dbg(&drv->pdev->dev, "wait_for_completion_timeout returned %ld\n",
 		comp_ret);
 	if (comp_ret == 0) {
-		dev_err(&drv->pdev->dev,
+		nfc_err(&drv->pdev->dev,
 			"timeout on wait_for_completion_timeout\n");
 		return -ETIMEDOUT;
 	}
diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index a66dff6ed51c..dc744eabeec1 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -1450,7 +1450,7 @@ static int pn533_target_found(struct pn533 *dev, u8 tg, u8 *tgdata,
 	struct nfc_target nfc_tgt;
 	int rc;
 
-	dev_dbg(&dev->interface->dev, "%s - modulation=%d\n",
+	dev_dbg(&dev->interface->dev, "%s: modulation=%d\n",
 		__func__, dev->poll_mod_curr);
 
 	if (tg != 1)
@@ -2004,8 +2004,7 @@ static int pn533_activate_target(struct nfc_dev *nfc_dev,
 	struct pn533 *dev = nfc_get_drvdata(nfc_dev);
 	int rc;
 
-	dev_dbg(&dev->interface->dev, "%s - protocol=%u\n",
-		__func__, protocol);
+	dev_dbg(&dev->interface->dev, "%s: protocol=%u\n", __func__, protocol);
 
 	if (dev->poll_mod_count) {
 		nfc_err(&dev->interface->dev,
diff --git a/drivers/nfc/pn544/i2c.c b/drivers/nfc/pn544/i2c.c
index 01e27d4bdd0d..b158ee1c2ac6 100644
--- a/drivers/nfc/pn544/i2c.c
+++ b/drivers/nfc/pn544/i2c.c
@@ -18,6 +18,8 @@
  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/crc-ccitt.h>
 #include <linux/module.h>
 #include <linux/i2c.h>
@@ -151,8 +153,7 @@ static void pn544_hci_i2c_platform_init(struct pn544_i2c_phy *phy)
 	char rset_cmd[] = { 0x05, 0xF9, 0x04, 0x00, 0xC3, 0xE5 };
 	int count = sizeof(rset_cmd);
 
-	pr_info(DRIVER_DESC ": %s\n", __func__);
-	dev_info(&phy->i2c_dev->dev, "Detecting nfc_en polarity\n");
+	nfc_info(&phy->i2c_dev->dev, "Detecting nfc_en polarity\n");
 
 	/* Disable fw download */
 	gpio_set_value(phy->gpio_fw, 0);
@@ -173,7 +174,7 @@ static void pn544_hci_i2c_platform_init(struct pn544_i2c_phy *phy)
 			dev_dbg(&phy->i2c_dev->dev, "Sending reset cmd\n");
 			ret = i2c_master_send(phy->i2c_dev, rset_cmd, count);
 			if (ret == count) {
-				dev_info(&phy->i2c_dev->dev,
+				nfc_info(&phy->i2c_dev->dev,
 					 "nfc_en polarity : active %s\n",
 					 (polarity == 0 ? "low" : "high"));
 				goto out;
@@ -181,7 +182,7 @@ static void pn544_hci_i2c_platform_init(struct pn544_i2c_phy *phy)
 		}
 	}
 
-	dev_err(&phy->i2c_dev->dev,
+	nfc_err(&phy->i2c_dev->dev,
 		"Could not detect nfc_en polarity, fallback to active high\n");
 
 out:
@@ -201,7 +202,7 @@ static int pn544_hci_i2c_enable(void *phy_id)
 {
 	struct pn544_i2c_phy *phy = phy_id;
 
-	pr_info(DRIVER_DESC ": %s\n", __func__);
+	pr_info("%s\n", __func__);
 
 	pn544_hci_i2c_enable_mode(phy, PN544_HCI_MODE);
 
@@ -214,8 +215,6 @@ static void pn544_hci_i2c_disable(void *phy_id)
 {
 	struct pn544_i2c_phy *phy = phy_id;
 
-	pr_info(DRIVER_DESC ": %s\n", __func__);
-
 	gpio_set_value(phy->gpio_fw, 0);
 	gpio_set_value(phy->gpio_en, !phy->en_polarity);
 	usleep_range(10000, 15000);
@@ -298,11 +297,9 @@ static int check_crc(u8 *buf, int buflen)
 	crc = ~crc;
 
 	if (buf[len - 2] != (crc & 0xff) || buf[len - 1] != (crc >> 8)) {
-		pr_err(PN544_HCI_I2C_DRIVER_NAME
-		       ": CRC error 0x%x != 0x%x 0x%x\n",
+		pr_err("CRC error 0x%x != 0x%x 0x%x\n",
 		       crc, buf[len - 1], buf[len - 2]);
-
-		pr_info(DRIVER_DESC ": %s : BAD CRC\n", __func__);
+		pr_info("%s: BAD CRC\n", __func__);
 		print_hex_dump(KERN_DEBUG, "crc: ", DUMP_PREFIX_NONE,
 			       16, 2, buf, buflen, false);
 		return -EPERM;
@@ -328,13 +325,13 @@ static int pn544_hci_i2c_read(struct pn544_i2c_phy *phy, struct sk_buff **skb)
 
 	r = i2c_master_recv(client, &len, 1);
 	if (r != 1) {
-		dev_err(&client->dev, "cannot read len byte\n");
+		nfc_err(&client->dev, "cannot read len byte\n");
 		return -EREMOTEIO;
 	}
 
 	if ((len < (PN544_HCI_I2C_LLC_MIN_SIZE - 1)) ||
 	    (len > (PN544_HCI_I2C_LLC_MAX_SIZE - 1))) {
-		dev_err(&client->dev, "invalid len byte\n");
+		nfc_err(&client->dev, "invalid len byte\n");
 		r = -EBADMSG;
 		goto flush;
 	}
@@ -386,7 +383,7 @@ static int pn544_hci_i2c_fw_read_status(struct pn544_i2c_phy *phy)
 
 	r = i2c_master_recv(client, (char *) &response, sizeof(response));
 	if (r != sizeof(response)) {
-		dev_err(&client->dev, "cannot read fw status\n");
+		nfc_err(&client->dev, "cannot read fw status\n");
 		return -EIO;
 	}
 
@@ -478,8 +475,7 @@ static int pn544_hci_i2c_fw_download(void *phy_id, const char *firmware_name)
 {
 	struct pn544_i2c_phy *phy = phy_id;
 
-	pr_info(DRIVER_DESC ": Starting Firmware Download (%s)\n",
-		firmware_name);
+	pr_info("Starting Firmware Download (%s)\n", firmware_name);
 
 	strcpy(phy->firmware_name, firmware_name);
 
@@ -493,7 +489,7 @@ static int pn544_hci_i2c_fw_download(void *phy_id, const char *firmware_name)
 static void pn544_hci_i2c_fw_work_complete(struct pn544_i2c_phy *phy,
 					   int result)
 {
-	pr_info(DRIVER_DESC ": Firmware Download Complete, result=%d\n", result);
+	pr_info("Firmware Download Complete, result=%d\n", result);
 
 	pn544_hci_i2c_disable(phy);
 
@@ -694,14 +690,14 @@ static int pn544_hci_i2c_probe(struct i2c_client *client,
 	dev_dbg(&client->dev, "IRQ: %d\n", client->irq);
 
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
-		dev_err(&client->dev, "Need I2C_FUNC_I2C\n");
+		nfc_err(&client->dev, "Need I2C_FUNC_I2C\n");
 		return -ENODEV;
 	}
 
 	phy = devm_kzalloc(&client->dev, sizeof(struct pn544_i2c_phy),
 			   GFP_KERNEL);
 	if (!phy) {
-		dev_err(&client->dev,
+		nfc_err(&client->dev,
 			"Cannot allocate memory for pn544 i2c phy.\n");
 		return -ENOMEM;
 	}
@@ -714,18 +710,18 @@ static int pn544_hci_i2c_probe(struct i2c_client *client,
 
 	pdata = client->dev.platform_data;
 	if (pdata == NULL) {
-		dev_err(&client->dev, "No platform data\n");
+		nfc_err(&client->dev, "No platform data\n");
 		return -EINVAL;
 	}
 
 	if (pdata->request_resources == NULL) {
-		dev_err(&client->dev, "request_resources() missing\n");
+		nfc_err(&client->dev, "request_resources() missing\n");
 		return -EINVAL;
 	}
 
 	r = pdata->request_resources(client);
 	if (r) {
-		dev_err(&client->dev, "Cannot get platform resources\n");
+		nfc_err(&client->dev, "Cannot get platform resources\n");
 		return r;
 	}
 
@@ -739,7 +735,7 @@ static int pn544_hci_i2c_probe(struct i2c_client *client,
 				 IRQF_TRIGGER_RISING | IRQF_ONESHOT,
 				 PN544_HCI_I2C_DRIVER_NAME, phy);
 	if (r < 0) {
-		dev_err(&client->dev, "Unable to register IRQ handler\n");
+		nfc_err(&client->dev, "Unable to register IRQ handler\n");
 		goto err_rti;
 	}
 
diff --git a/drivers/nfc/pn544/pn544.c b/drivers/nfc/pn544/pn544.c
index b5048cbcc182..74cfa0a88b9e 100644
--- a/drivers/nfc/pn544/pn544.c
+++ b/drivers/nfc/pn544/pn544.c
@@ -18,6 +18,8 @@
  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/delay.h>
 #include <linux/slab.h>
 #include <linux/module.h>
@@ -391,7 +393,7 @@ static int pn544_hci_start_poll(struct nfc_hci_dev *hdev,
 	if ((im_protocols | tm_protocols) & NFC_PROTO_NFC_DEP_MASK) {
 		hdev->gb = nfc_get_local_general_bytes(hdev->ndev,
 							&hdev->gb_len);
-		pr_debug("generate local bytes %p", hdev->gb);
+		pr_debug("generate local bytes %p\n", hdev->gb);
 		if (hdev->gb == NULL || hdev->gb_len == 0) {
 			im_protocols &= ~NFC_PROTO_NFC_DEP_MASK;
 			tm_protocols &= ~NFC_PROTO_NFC_DEP_MASK;
@@ -693,7 +695,7 @@ static int pn544_hci_tm_send(struct nfc_hci_dev *hdev, struct sk_buff *skb)
 static int pn544_hci_check_presence(struct nfc_hci_dev *hdev,
 				   struct nfc_target *target)
 {
-	pr_debug("supported protocol %d", target->supported_protocols);
+	pr_debug("supported protocol %d\b", target->supported_protocols);
 	if (target->supported_protocols & (NFC_PROTO_ISO14443_MASK |
 					NFC_PROTO_ISO14443_B_MASK)) {
 		return nfc_hci_send_cmd(hdev, target->hci_reader_gate,
@@ -730,7 +732,7 @@ static int pn544_hci_event_received(struct nfc_hci_dev *hdev, u8 gate, u8 event,
 	struct sk_buff *rgb_skb = NULL;
 	int r;
 
-	pr_debug("hci event %d", event);
+	pr_debug("hci event %d\n", event);
 	switch (event) {
 	case PN544_HCI_EVT_ACTIVATED:
 		if (gate == PN544_RF_READER_NFCIP1_INITIATOR_GATE) {
@@ -761,7 +763,7 @@ static int pn544_hci_event_received(struct nfc_hci_dev *hdev, u8 gate, u8 event,
 		}
 
 		if (skb->data[0] != 0) {
-			pr_debug("data0 %d", skb->data[0]);
+			pr_debug("data0 %d\n", skb->data[0]);
 			r = -EPROTO;
 			goto exit;
 		}
@@ -922,7 +924,6 @@ int pn544_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
 
 	info = kzalloc(sizeof(struct pn544_hci_info), GFP_KERNEL);
 	if (!info) {
-		pr_err("Cannot allocate memory for pn544_hci_info.\n");
 		r = -ENOMEM;
 		goto err_info_alloc;
 	}
@@ -955,7 +956,7 @@ int pn544_hci_probe(void *phy_id, struct nfc_phy_ops *phy_ops, char *llc_name,
 					     phy_headroom + PN544_CMDS_HEADROOM,
 					     phy_tailroom, phy_payload);
 	if (!info->hdev) {
-		pr_err("Cannot allocate nfc hdev.\n");
+		pr_err("Cannot allocate nfc hdev\n");
 		r = -ENOMEM;
 		goto err_alloc_hdev;
 	}
-- 
cgit 


From 079797c3b7ca74a4e81496fda5d53adec9f727bf Mon Sep 17 00:00:00 2001
From: Eric Lapuyade <eric.lapuyade@linux.intel.com>
Date: Mon, 2 Sep 2013 12:34:34 +0200
Subject: NFC: NCI: Fix wrong allocation size in nci_spi_allocate_device()

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 net/nfc/nci/spi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/nfc/nci/spi.c b/net/nfc/nci/spi.c
index c7cf37ba7298..b6795955432d 100644
--- a/net/nfc/nci/spi.c
+++ b/net/nfc/nci/spi.c
@@ -150,7 +150,7 @@ struct nci_spi_dev *nci_spi_allocate_device(struct spi_device *spi,
 	if (!supported_protocols)
 		return NULL;
 
-	ndev = devm_kzalloc(&spi->dev, sizeof(struct nci_dev), GFP_KERNEL);
+	ndev = devm_kzalloc(&spi->dev, sizeof(struct nci_spi_dev), GFP_KERNEL);
 	if (!ndev)
 		return NULL;
 
-- 
cgit 


From d593751129ec26762412b2fa7afe9c9258923340 Mon Sep 17 00:00:00 2001
From: Eric Lapuyade <eric.lapuyade@linux.intel.com>
Date: Mon, 2 Sep 2013 12:35:39 +0200
Subject: NFC: NCI: Rename spi ndev -> nsdev and nci_dev -> ndev for
 consistency

An hci dev is an hdev. An nci dev is an ndev. Calling an nci spi dev an
ndev is misleading since it's not the same thing. The nci dev contained
in the nci spi dev is also named inconsistently.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 include/net/nfc/nci_core.h |  26 ++++-----
 net/nfc/nci/spi.c          | 128 ++++++++++++++++++++++-----------------------
 2 files changed, 77 insertions(+), 77 deletions(-)

diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 99fc1f3a392a..c08399621c8b 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -210,14 +210,14 @@ int nci_to_errno(__u8 code);
 struct nci_spi_dev;
 
 struct nci_spi_ops {
-	int (*open)(struct nci_spi_dev *ndev);
-	int (*close)(struct nci_spi_dev *ndev);
-	void (*assert_int)(struct nci_spi_dev *ndev);
-	void (*deassert_int)(struct nci_spi_dev *ndev);
+	int (*open)(struct nci_spi_dev *nsdev);
+	int (*close)(struct nci_spi_dev *nsdev);
+	void (*assert_int)(struct nci_spi_dev *nsdev);
+	void (*deassert_int)(struct nci_spi_dev *nsdev);
 };
 
 struct nci_spi_dev {
-	struct nci_dev		*nci_dev;
+	struct nci_dev		*ndev;
 	struct spi_device	*spi;
 	struct nci_spi_ops	*ops;
 
@@ -238,20 +238,20 @@ struct nci_spi_dev *nci_spi_allocate_device(struct spi_device *spi,
 						u32 supported_se,
 						u8 acknowledge_mode,
 						unsigned int delay);
-void nci_spi_free_device(struct nci_spi_dev *ndev);
-int nci_spi_register_device(struct nci_spi_dev *ndev);
-void nci_spi_unregister_device(struct nci_spi_dev *ndev);
-int nci_spi_recv_frame(struct nci_spi_dev *ndev);
+void nci_spi_free_device(struct nci_spi_dev *nsdev);
+int nci_spi_register_device(struct nci_spi_dev *nsdev);
+void nci_spi_unregister_device(struct nci_spi_dev *nsdev);
+int nci_spi_recv_frame(struct nci_spi_dev *nsdev);
 
-static inline void nci_spi_set_drvdata(struct nci_spi_dev *ndev,
+static inline void nci_spi_set_drvdata(struct nci_spi_dev *nsdev,
 					    void *data)
 {
-	ndev->driver_data = data;
+	nsdev->driver_data = data;
 }
 
-static inline void *nci_spi_get_drvdata(struct nci_spi_dev *ndev)
+static inline void *nci_spi_get_drvdata(struct nci_spi_dev *nsdev)
 {
-	return ndev->driver_data;
+	return nsdev->driver_data;
 }
 
 #endif /* __NCI_CORE_H */
diff --git a/net/nfc/nci/spi.c b/net/nfc/nci/spi.c
index b6795955432d..e66fda4d9ede 100644
--- a/net/nfc/nci/spi.c
+++ b/net/nfc/nci/spi.c
@@ -41,21 +41,21 @@
 
 #define CRC_INIT		0xFFFF
 
-static int nci_spi_open(struct nci_dev *nci_dev)
+static int nci_spi_open(struct nci_dev *ndev)
 {
-	struct nci_spi_dev *ndev = nci_get_drvdata(nci_dev);
+	struct nci_spi_dev *nsdev = nci_get_drvdata(ndev);
 
-	return ndev->ops->open(ndev);
+	return nsdev->ops->open(nsdev);
 }
 
-static int nci_spi_close(struct nci_dev *nci_dev)
+static int nci_spi_close(struct nci_dev *ndev)
 {
-	struct nci_spi_dev *ndev = nci_get_drvdata(nci_dev);
+	struct nci_spi_dev *nsdev = nci_get_drvdata(ndev);
 
-	return ndev->ops->close(ndev);
+	return nsdev->ops->close(nsdev);
 }
 
-static int __nci_spi_send(struct nci_spi_dev *ndev, struct sk_buff *skb)
+static int __nci_spi_send(struct nci_spi_dev *nsdev, struct sk_buff *skb)
 {
 	struct spi_message m;
 	struct spi_transfer t;
@@ -63,32 +63,32 @@ static int __nci_spi_send(struct nci_spi_dev *ndev, struct sk_buff *skb)
 	t.tx_buf = skb->data;
 	t.len = skb->len;
 	t.cs_change = 0;
-	t.delay_usecs = ndev->xfer_udelay;
+	t.delay_usecs = nsdev->xfer_udelay;
 
 	spi_message_init(&m);
 	spi_message_add_tail(&t, &m);
 
-	return spi_sync(ndev->spi, &m);
+	return spi_sync(nsdev->spi, &m);
 }
 
-static int nci_spi_send(struct nci_dev *nci_dev, struct sk_buff *skb)
+static int nci_spi_send(struct nci_dev *ndev, struct sk_buff *skb)
 {
-	struct nci_spi_dev *ndev = nci_get_drvdata(nci_dev);
+	struct nci_spi_dev *nsdev = nci_get_drvdata(ndev);
 	unsigned int payload_len = skb->len;
 	unsigned char *hdr;
 	int ret;
 	long completion_rc;
 
-	ndev->ops->deassert_int(ndev);
+	nsdev->ops->deassert_int(nsdev);
 
 	/* add the NCI SPI header to the start of the buffer */
 	hdr = skb_push(skb, NCI_SPI_HDR_LEN);
 	hdr[0] = NCI_SPI_DIRECT_WRITE;
-	hdr[1] = ndev->acknowledge_mode;
+	hdr[1] = nsdev->acknowledge_mode;
 	hdr[2] = payload_len >> 8;
 	hdr[3] = payload_len & 0xFF;
 
-	if (ndev->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
+	if (nsdev->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
 		u16 crc;
 
 		crc = crc_ccitt(CRC_INIT, skb->data, skb->len);
@@ -96,20 +96,20 @@ static int nci_spi_send(struct nci_dev *nci_dev, struct sk_buff *skb)
 		*skb_put(skb, 1) = crc & 0xFF;
 	}
 
-	ret = __nci_spi_send(ndev, skb);
+	ret = __nci_spi_send(nsdev, skb);
 
 	kfree_skb(skb);
-	ndev->ops->assert_int(ndev);
+	nsdev->ops->assert_int(nsdev);
 
-	if (ret != 0 || ndev->acknowledge_mode == NCI_SPI_CRC_DISABLED)
+	if (ret != 0 || nsdev->acknowledge_mode == NCI_SPI_CRC_DISABLED)
 		goto done;
 
-	init_completion(&ndev->req_completion);
-	completion_rc =
-		wait_for_completion_interruptible_timeout(&ndev->req_completion,
-							  NCI_SPI_SEND_TIMEOUT);
+	init_completion(&nsdev->req_completion);
+	completion_rc =	wait_for_completion_interruptible_timeout(
+							&nsdev->req_completion,
+							NCI_SPI_SEND_TIMEOUT);
 
-	if (completion_rc <= 0 || ndev->req_result == ACKNOWLEDGE_NACK)
+	if (completion_rc <= 0 || nsdev->req_result == ACKNOWLEDGE_NACK)
 		ret = -EIO;
 
 done:
@@ -141,7 +141,7 @@ struct nci_spi_dev *nci_spi_allocate_device(struct spi_device *spi,
 						u8 acknowledge_mode,
 						unsigned int delay)
 {
-	struct nci_spi_dev *ndev;
+	struct nci_spi_dev *nsdev;
 	int tailroom = 0;
 
 	if (!ops->open || !ops->close || !ops->assert_int || !ops->deassert_int)
@@ -150,36 +150,36 @@ struct nci_spi_dev *nci_spi_allocate_device(struct spi_device *spi,
 	if (!supported_protocols)
 		return NULL;
 
-	ndev = devm_kzalloc(&spi->dev, sizeof(struct nci_spi_dev), GFP_KERNEL);
-	if (!ndev)
+	nsdev = devm_kzalloc(&spi->dev, sizeof(struct nci_spi_dev), GFP_KERNEL);
+	if (!nsdev)
 		return NULL;
 
-	ndev->ops = ops;
-	ndev->acknowledge_mode = acknowledge_mode;
-	ndev->xfer_udelay = delay;
+	nsdev->ops = ops;
+	nsdev->acknowledge_mode = acknowledge_mode;
+	nsdev->xfer_udelay = delay;
 
 	if (acknowledge_mode == NCI_SPI_CRC_ENABLED)
 		tailroom += NCI_SPI_CRC_LEN;
 
-	ndev->nci_dev = nci_allocate_device(&nci_spi_ops, supported_protocols,
-					    NCI_SPI_HDR_LEN, tailroom);
-	if (!ndev->nci_dev)
+	nsdev->ndev = nci_allocate_device(&nci_spi_ops, supported_protocols,
+					  NCI_SPI_HDR_LEN, tailroom);
+	if (!nsdev->ndev)
 		return NULL;
 
-	nci_set_drvdata(ndev->nci_dev, ndev);
+	nci_set_drvdata(nsdev->ndev, nsdev);
 
-	return ndev;
+	return nsdev;
 }
 EXPORT_SYMBOL_GPL(nci_spi_allocate_device);
 
 /**
  * nci_spi_free_device - deallocate nci spi device
  *
- * @ndev: The nci spi device to deallocate
+ * @nsdev: The nci spi device to deallocate
  */
-void nci_spi_free_device(struct nci_spi_dev *ndev)
+void nci_spi_free_device(struct nci_spi_dev *nsdev)
 {
-	nci_free_device(ndev->nci_dev);
+	nci_free_device(nsdev->ndev);
 }
 EXPORT_SYMBOL_GPL(nci_spi_free_device);
 
@@ -188,9 +188,9 @@ EXPORT_SYMBOL_GPL(nci_spi_free_device);
  *
  * @pdev: The nci spi device to register
  */
-int nci_spi_register_device(struct nci_spi_dev *ndev)
+int nci_spi_register_device(struct nci_spi_dev *nsdev)
 {
-	return nci_register_device(ndev->nci_dev);
+	return nci_register_device(nsdev->ndev);
 }
 EXPORT_SYMBOL_GPL(nci_spi_register_device);
 
@@ -199,20 +199,20 @@ EXPORT_SYMBOL_GPL(nci_spi_register_device);
  *
  * @dev: The nci spi device to unregister
  */
-void nci_spi_unregister_device(struct nci_spi_dev *ndev)
+void nci_spi_unregister_device(struct nci_spi_dev *nsdev)
 {
-	nci_unregister_device(ndev->nci_dev);
+	nci_unregister_device(nsdev->ndev);
 }
 EXPORT_SYMBOL_GPL(nci_spi_unregister_device);
 
-static int send_acknowledge(struct nci_spi_dev *ndev, u8 acknowledge)
+static int send_acknowledge(struct nci_spi_dev *nsdev, u8 acknowledge)
 {
 	struct sk_buff *skb;
 	unsigned char *hdr;
 	u16 crc;
 	int ret;
 
-	skb = nci_skb_alloc(ndev->nci_dev, 0, GFP_KERNEL);
+	skb = nci_skb_alloc(nsdev->ndev, 0, GFP_KERNEL);
 
 	/* add the NCI SPI header to the start of the buffer */
 	hdr = skb_push(skb, NCI_SPI_HDR_LEN);
@@ -225,14 +225,14 @@ static int send_acknowledge(struct nci_spi_dev *ndev, u8 acknowledge)
 	*skb_put(skb, 1) = crc >> 8;
 	*skb_put(skb, 1) = crc & 0xFF;
 
-	ret = __nci_spi_send(ndev, skb);
+	ret = __nci_spi_send(nsdev, skb);
 
 	kfree_skb(skb);
 
 	return ret;
 }
 
-static struct sk_buff *__nci_spi_recv_frame(struct nci_spi_dev *ndev)
+static struct sk_buff *__nci_spi_recv_frame(struct nci_spi_dev *nsdev)
 {
 	struct sk_buff *skb;
 	struct spi_message m;
@@ -243,7 +243,7 @@ static struct sk_buff *__nci_spi_recv_frame(struct nci_spi_dev *ndev)
 
 	spi_message_init(&m);
 	req[0] = NCI_SPI_DIRECT_READ;
-	req[1] = ndev->acknowledge_mode;
+	req[1] = nsdev->acknowledge_mode;
 	tx.tx_buf = req;
 	tx.len = 2;
 	tx.cs_change = 0;
@@ -252,18 +252,18 @@ static struct sk_buff *__nci_spi_recv_frame(struct nci_spi_dev *ndev)
 	rx.len = 2;
 	rx.cs_change = 1;
 	spi_message_add_tail(&rx, &m);
-	ret = spi_sync(ndev->spi, &m);
+	ret = spi_sync(nsdev->spi, &m);
 
 	if (ret)
 		return NULL;
 
-	if (ndev->acknowledge_mode == NCI_SPI_CRC_ENABLED)
+	if (nsdev->acknowledge_mode == NCI_SPI_CRC_ENABLED)
 		rx_len = ((resp_hdr[0] & NCI_SPI_MSB_PAYLOAD_MASK) << 8) +
 				resp_hdr[1] + NCI_SPI_CRC_LEN;
 	else
 		rx_len = (resp_hdr[0] << 8) | resp_hdr[1];
 
-	skb = nci_skb_alloc(ndev->nci_dev, rx_len, GFP_KERNEL);
+	skb = nci_skb_alloc(nsdev->ndev, rx_len, GFP_KERNEL);
 	if (!skb)
 		return NULL;
 
@@ -271,14 +271,14 @@ static struct sk_buff *__nci_spi_recv_frame(struct nci_spi_dev *ndev)
 	rx.rx_buf = skb_put(skb, rx_len);
 	rx.len = rx_len;
 	rx.cs_change = 0;
-	rx.delay_usecs = ndev->xfer_udelay;
+	rx.delay_usecs = nsdev->xfer_udelay;
 	spi_message_add_tail(&rx, &m);
-	ret = spi_sync(ndev->spi, &m);
+	ret = spi_sync(nsdev->spi, &m);
 
 	if (ret)
 		goto receive_error;
 
-	if (ndev->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
+	if (nsdev->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
 		*skb_push(skb, 1) = resp_hdr[1];
 		*skb_push(skb, 1) = resp_hdr[0];
 	}
@@ -320,7 +320,7 @@ static u8 nci_spi_get_ack(struct sk_buff *skb)
 /**
  * nci_spi_recv_frame - receive frame from NCI SPI drivers
  *
- * @ndev: The nci spi device
+ * @nsdev: The nci spi device
  * Context: can sleep
  *
  * This call may only be used from a context that may sleep.  The sleep
@@ -328,32 +328,32 @@ static u8 nci_spi_get_ack(struct sk_buff *skb)
  *
  * It returns zero on success, else a negative error code.
  */
-int nci_spi_recv_frame(struct nci_spi_dev *ndev)
+int nci_spi_recv_frame(struct nci_spi_dev *nsdev)
 {
 	struct sk_buff *skb;
 	int ret = 0;
 
-	ndev->ops->deassert_int(ndev);
+	nsdev->ops->deassert_int(nsdev);
 
 	/* Retrieve frame from SPI */
-	skb = __nci_spi_recv_frame(ndev);
+	skb = __nci_spi_recv_frame(nsdev);
 	if (!skb) {
 		ret = -EIO;
 		goto done;
 	}
 
-	if (ndev->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
+	if (nsdev->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
 		if (!nci_spi_check_crc(skb)) {
-			send_acknowledge(ndev, ACKNOWLEDGE_NACK);
+			send_acknowledge(nsdev, ACKNOWLEDGE_NACK);
 			goto done;
 		}
 
 		/* In case of acknowledged mode: if ACK or NACK received,
 		 * unblock completion of latest frame sent.
 		 */
-		ndev->req_result = nci_spi_get_ack(skb);
-		if (ndev->req_result)
-			complete(&ndev->req_completion);
+		nsdev->req_result = nci_spi_get_ack(skb);
+		if (nsdev->req_result)
+			complete(&nsdev->req_completion);
 	}
 
 	/* If there is no payload (ACK/NACK only frame),
@@ -364,14 +364,14 @@ int nci_spi_recv_frame(struct nci_spi_dev *ndev)
 		goto done;
 	}
 
-	if (ndev->acknowledge_mode == NCI_SPI_CRC_ENABLED)
-		send_acknowledge(ndev, ACKNOWLEDGE_ACK);
+	if (nsdev->acknowledge_mode == NCI_SPI_CRC_ENABLED)
+		send_acknowledge(nsdev, ACKNOWLEDGE_ACK);
 
 	/* Forward skb to NCI core layer */
-	ret = nci_recv_frame(ndev->nci_dev, skb);
+	ret = nci_recv_frame(nsdev->ndev, skb);
 
 done:
-	ndev->ops->assert_int(ndev);
+	nsdev->ops->assert_int(nsdev);
 
 	return ret;
 }
-- 
cgit 


From 08f13acff960d6c95a371f67ab98785aa9969179 Mon Sep 17 00:00:00 2001
From: Eric Lapuyade <eric.lapuyade@linux.intel.com>
Date: Tue, 3 Sep 2013 11:51:00 +0200
Subject: NFC: Move struct nfc_phy_ops out of HCI up to nfc core level

struct nfc_phy_ops is not an HCI structure only, it can also be used by
NCI or direct NFC Core drivers.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 include/net/nfc/hci.h | 6 ------
 include/net/nfc/nfc.h | 6 ++++++
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/net/nfc/hci.h b/include/net/nfc/hci.h
index b64b7bce4b94..2eca2960ca9c 100644
--- a/include/net/nfc/hci.h
+++ b/include/net/nfc/hci.h
@@ -24,12 +24,6 @@
 
 #include <net/nfc/nfc.h>
 
-struct nfc_phy_ops {
-	int (*write)(void *dev_id, struct sk_buff *skb);
-	int (*enable)(void *dev_id);
-	void (*disable)(void *dev_id);
-};
-
 struct nfc_hci_dev;
 
 struct nfc_hci_ops {
diff --git a/include/net/nfc/nfc.h b/include/net/nfc/nfc.h
index f5c6a23636f1..c2aee4875b65 100644
--- a/include/net/nfc/nfc.h
+++ b/include/net/nfc/nfc.h
@@ -31,6 +31,12 @@
 #define nfc_info(dev, fmt, ...) dev_info((dev), "NFC: " fmt, ##__VA_ARGS__)
 #define nfc_err(dev, fmt, ...) dev_err((dev), "NFC: " fmt, ##__VA_ARGS__)
 
+struct nfc_phy_ops {
+	int (*write)(void *dev_id, struct sk_buff *skb);
+	int (*enable)(void *dev_id);
+	void (*disable)(void *dev_id);
+};
+
 struct nfc_dev;
 
 /**
-- 
cgit 


From fa544fff62aeeb0cf8008c61077aae10fb1407a9 Mon Sep 17 00:00:00 2001
From: Eric Lapuyade <eric.lapuyade@linux.intel.com>
Date: Thu, 5 Sep 2013 11:02:21 +0200
Subject: NFC: NCI: Simplify NCI SPI to become a simple framing/checking layer

NCI SPI layer should not manage the nci dev, this is the job of the nci
chipset driver. This layer should be limited to frame/deframe nci
packets, and optionnaly check integrity (crc) and manage the ack/nak
protocol.

The NCI SPI must not be mixed up with an NCI dev. spi_[dev|device] are
therefore renamed to a simple spi for more clarity.
The header and crc sizes are moved to nci.h so that drivers can use
them to reserve space in outgoing skbs.
nci_spi_send() is exported to be accessible by drivers.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 include/net/nfc/nci.h      |   4 +
 include/net/nfc/nci_core.h |  41 +++--------
 net/nfc/nci/spi.c          | 180 ++++++++++++++-------------------------------
 3 files changed, 70 insertions(+), 155 deletions(-)

diff --git a/include/net/nfc/nci.h b/include/net/nfc/nci.h
index 88785e5c6b2c..e5aa5acafea0 100644
--- a/include/net/nfc/nci.h
+++ b/include/net/nfc/nci.h
@@ -166,6 +166,10 @@
 #define NCI_GID_NFCEE_MGMT					0x2
 #define NCI_GID_PROPRIETARY					0xf
 
+/* ----- NCI over SPI head/crc(tail) room needed for outgoing frames ----- */
+#define NCI_SPI_HDR_LEN						4
+#define NCI_SPI_CRC_LEN						2
+
 /* ---- NCI Packet structures ---- */
 #define NCI_CTRL_HDR_SIZE					3
 #define NCI_DATA_HDR_SIZE					3
diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index c08399621c8b..37ba06f2dfa9 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -207,16 +207,14 @@ int nci_to_errno(__u8 code);
 #define NCI_SPI_CRC_ENABLED	0x01
 
 /* ----- NCI SPI structures ----- */
-struct nci_spi_dev;
+struct nci_spi;
 
 struct nci_spi_ops {
-	int (*open)(struct nci_spi_dev *nsdev);
-	int (*close)(struct nci_spi_dev *nsdev);
-	void (*assert_int)(struct nci_spi_dev *nsdev);
-	void (*deassert_int)(struct nci_spi_dev *nsdev);
+	void (*assert_int)(struct nci_spi *nspi);
+	void (*deassert_int)(struct nci_spi *nspi);
 };
 
-struct nci_spi_dev {
+struct nci_spi {
 	struct nci_dev		*ndev;
 	struct spi_device	*spi;
 	struct nci_spi_ops	*ops;
@@ -227,31 +225,14 @@ struct nci_spi_dev {
 
 	struct completion	req_completion;
 	u8			req_result;
-
-	void			*driver_data;
 };
 
-/* ----- NCI SPI Devices ----- */
-struct nci_spi_dev *nci_spi_allocate_device(struct spi_device *spi,
-						struct nci_spi_ops *ops,
-						u32 supported_protocols,
-						u32 supported_se,
-						u8 acknowledge_mode,
-						unsigned int delay);
-void nci_spi_free_device(struct nci_spi_dev *nsdev);
-int nci_spi_register_device(struct nci_spi_dev *nsdev);
-void nci_spi_unregister_device(struct nci_spi_dev *nsdev);
-int nci_spi_recv_frame(struct nci_spi_dev *nsdev);
-
-static inline void nci_spi_set_drvdata(struct nci_spi_dev *nsdev,
-					    void *data)
-{
-	nsdev->driver_data = data;
-}
-
-static inline void *nci_spi_get_drvdata(struct nci_spi_dev *nsdev)
-{
-	return nsdev->driver_data;
-}
+/* ----- NCI SPI ----- */
+struct nci_spi *nci_spi_allocate_spi(struct spi_device *spi,
+				     struct nci_spi_ops *ops,
+				     u8 acknowledge_mode, unsigned int delay,
+				     struct nci_dev *ndev);
+int nci_spi_send(struct nci_spi *nspi, struct sk_buff *skb);
+int nci_spi_recv_frame(struct nci_spi *nspi);
 
 #endif /* __NCI_CORE_H */
diff --git a/net/nfc/nci/spi.c b/net/nfc/nci/spi.c
index e66fda4d9ede..910dfd8015f4 100644
--- a/net/nfc/nci/spi.c
+++ b/net/nfc/nci/spi.c
@@ -24,8 +24,6 @@
 #include <linux/nfc.h>
 #include <net/nfc/nci_core.h>
 
-#define NCI_SPI_HDR_LEN			4
-#define NCI_SPI_CRC_LEN			2
 #define NCI_SPI_ACK_SHIFT		6
 #define NCI_SPI_MSB_PAYLOAD_MASK	0x3F
 
@@ -41,21 +39,7 @@
 
 #define CRC_INIT		0xFFFF
 
-static int nci_spi_open(struct nci_dev *ndev)
-{
-	struct nci_spi_dev *nsdev = nci_get_drvdata(ndev);
-
-	return nsdev->ops->open(nsdev);
-}
-
-static int nci_spi_close(struct nci_dev *ndev)
-{
-	struct nci_spi_dev *nsdev = nci_get_drvdata(ndev);
-
-	return nsdev->ops->close(nsdev);
-}
-
-static int __nci_spi_send(struct nci_spi_dev *nsdev, struct sk_buff *skb)
+static int __nci_spi_send(struct nci_spi *nspi, struct sk_buff *skb)
 {
 	struct spi_message m;
 	struct spi_transfer t;
@@ -63,32 +47,31 @@ static int __nci_spi_send(struct nci_spi_dev *nsdev, struct sk_buff *skb)
 	t.tx_buf = skb->data;
 	t.len = skb->len;
 	t.cs_change = 0;
-	t.delay_usecs = nsdev->xfer_udelay;
+	t.delay_usecs = nspi->xfer_udelay;
 
 	spi_message_init(&m);
 	spi_message_add_tail(&t, &m);
 
-	return spi_sync(nsdev->spi, &m);
+	return spi_sync(nspi->spi, &m);
 }
 
-static int nci_spi_send(struct nci_dev *ndev, struct sk_buff *skb)
+int nci_spi_send(struct nci_spi *nspi, struct sk_buff *skb)
 {
-	struct nci_spi_dev *nsdev = nci_get_drvdata(ndev);
 	unsigned int payload_len = skb->len;
 	unsigned char *hdr;
 	int ret;
 	long completion_rc;
 
-	nsdev->ops->deassert_int(nsdev);
+	nspi->ops->deassert_int(nspi);
 
 	/* add the NCI SPI header to the start of the buffer */
 	hdr = skb_push(skb, NCI_SPI_HDR_LEN);
 	hdr[0] = NCI_SPI_DIRECT_WRITE;
-	hdr[1] = nsdev->acknowledge_mode;
+	hdr[1] = nspi->acknowledge_mode;
 	hdr[2] = payload_len >> 8;
 	hdr[3] = payload_len & 0xFF;
 
-	if (nsdev->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
+	if (nspi->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
 		u16 crc;
 
 		crc = crc_ccitt(CRC_INIT, skb->data, skb->len);
@@ -96,123 +79,70 @@ static int nci_spi_send(struct nci_dev *ndev, struct sk_buff *skb)
 		*skb_put(skb, 1) = crc & 0xFF;
 	}
 
-	ret = __nci_spi_send(nsdev, skb);
+	ret = __nci_spi_send(nspi, skb);
 
 	kfree_skb(skb);
-	nsdev->ops->assert_int(nsdev);
+	nspi->ops->assert_int(nspi);
 
-	if (ret != 0 || nsdev->acknowledge_mode == NCI_SPI_CRC_DISABLED)
+	if (ret != 0 || nspi->acknowledge_mode == NCI_SPI_CRC_DISABLED)
 		goto done;
 
-	init_completion(&nsdev->req_completion);
+	init_completion(&nspi->req_completion);
 	completion_rc =	wait_for_completion_interruptible_timeout(
-							&nsdev->req_completion,
+							&nspi->req_completion,
 							NCI_SPI_SEND_TIMEOUT);
 
-	if (completion_rc <= 0 || nsdev->req_result == ACKNOWLEDGE_NACK)
+	if (completion_rc <= 0 || nspi->req_result == ACKNOWLEDGE_NACK)
 		ret = -EIO;
 
 done:
 	return ret;
 }
-
-static struct nci_ops nci_spi_ops = {
-	.open = nci_spi_open,
-	.close = nci_spi_close,
-	.send = nci_spi_send,
-};
+EXPORT_SYMBOL_GPL(nci_spi_send);
 
 /* ---- Interface to NCI SPI drivers ---- */
 
 /**
- * nci_spi_allocate_device - allocate a new nci spi device
+ * nci_spi_allocate_spi - allocate a new nci spi
  *
  * @spi: SPI device
  * @ops: device operations
- * @supported_protocols: NFC protocols supported by the device
- * @supported_se: NFC Secure Elements supported by the device
- * @acknowledge_mode: Acknowledge mode used by the device
+ * @acknowledge_mode: Acknowledge mode used by the NFC device
  * @delay: delay between transactions in us
+ * @ndev: nci dev to send incoming nci frames to
  */
-struct nci_spi_dev *nci_spi_allocate_device(struct spi_device *spi,
-						struct nci_spi_ops *ops,
-						u32 supported_protocols,
-						u32 supported_se,
-						u8 acknowledge_mode,
-						unsigned int delay)
+struct nci_spi *nci_spi_allocate_spi(struct spi_device *spi,
+				     struct nci_spi_ops *ops,
+				     u8 acknowledge_mode, unsigned int delay,
+				     struct nci_dev *ndev)
 {
-	struct nci_spi_dev *nsdev;
-	int tailroom = 0;
-
-	if (!ops->open || !ops->close || !ops->assert_int || !ops->deassert_int)
-		return NULL;
-
-	if (!supported_protocols)
-		return NULL;
+	struct nci_spi *nspi;
 
-	nsdev = devm_kzalloc(&spi->dev, sizeof(struct nci_spi_dev), GFP_KERNEL);
-	if (!nsdev)
+	if (!ops->assert_int || !ops->deassert_int)
 		return NULL;
 
-	nsdev->ops = ops;
-	nsdev->acknowledge_mode = acknowledge_mode;
-	nsdev->xfer_udelay = delay;
-
-	if (acknowledge_mode == NCI_SPI_CRC_ENABLED)
-		tailroom += NCI_SPI_CRC_LEN;
-
-	nsdev->ndev = nci_allocate_device(&nci_spi_ops, supported_protocols,
-					  NCI_SPI_HDR_LEN, tailroom);
-	if (!nsdev->ndev)
+	nspi = devm_kzalloc(&spi->dev, sizeof(struct nci_spi), GFP_KERNEL);
+	if (!nspi)
 		return NULL;
 
-	nci_set_drvdata(nsdev->ndev, nsdev);
-
-	return nsdev;
-}
-EXPORT_SYMBOL_GPL(nci_spi_allocate_device);
-
-/**
- * nci_spi_free_device - deallocate nci spi device
- *
- * @nsdev: The nci spi device to deallocate
- */
-void nci_spi_free_device(struct nci_spi_dev *nsdev)
-{
-	nci_free_device(nsdev->ndev);
-}
-EXPORT_SYMBOL_GPL(nci_spi_free_device);
+	nspi->ops = ops;
+	nspi->acknowledge_mode = acknowledge_mode;
+	nspi->xfer_udelay = delay;
 
-/**
- * nci_spi_register_device - register a nci spi device in the nfc subsystem
- *
- * @pdev: The nci spi device to register
- */
-int nci_spi_register_device(struct nci_spi_dev *nsdev)
-{
-	return nci_register_device(nsdev->ndev);
-}
-EXPORT_SYMBOL_GPL(nci_spi_register_device);
+	nspi->ndev = ndev;
 
-/**
- * nci_spi_unregister_device - unregister a nci spi device in the nfc subsystem
- *
- * @dev: The nci spi device to unregister
- */
-void nci_spi_unregister_device(struct nci_spi_dev *nsdev)
-{
-	nci_unregister_device(nsdev->ndev);
+	return nspi;
 }
-EXPORT_SYMBOL_GPL(nci_spi_unregister_device);
+EXPORT_SYMBOL_GPL(nci_spi_allocate_spi);
 
-static int send_acknowledge(struct nci_spi_dev *nsdev, u8 acknowledge)
+static int send_acknowledge(struct nci_spi *nspi, u8 acknowledge)
 {
 	struct sk_buff *skb;
 	unsigned char *hdr;
 	u16 crc;
 	int ret;
 
-	skb = nci_skb_alloc(nsdev->ndev, 0, GFP_KERNEL);
+	skb = nci_skb_alloc(nspi->ndev, 0, GFP_KERNEL);
 
 	/* add the NCI SPI header to the start of the buffer */
 	hdr = skb_push(skb, NCI_SPI_HDR_LEN);
@@ -225,14 +155,14 @@ static int send_acknowledge(struct nci_spi_dev *nsdev, u8 acknowledge)
 	*skb_put(skb, 1) = crc >> 8;
 	*skb_put(skb, 1) = crc & 0xFF;
 
-	ret = __nci_spi_send(nsdev, skb);
+	ret = __nci_spi_send(nspi, skb);
 
 	kfree_skb(skb);
 
 	return ret;
 }
 
-static struct sk_buff *__nci_spi_recv_frame(struct nci_spi_dev *nsdev)
+static struct sk_buff *__nci_spi_recv_frame(struct nci_spi *nspi)
 {
 	struct sk_buff *skb;
 	struct spi_message m;
@@ -243,7 +173,7 @@ static struct sk_buff *__nci_spi_recv_frame(struct nci_spi_dev *nsdev)
 
 	spi_message_init(&m);
 	req[0] = NCI_SPI_DIRECT_READ;
-	req[1] = nsdev->acknowledge_mode;
+	req[1] = nspi->acknowledge_mode;
 	tx.tx_buf = req;
 	tx.len = 2;
 	tx.cs_change = 0;
@@ -252,18 +182,18 @@ static struct sk_buff *__nci_spi_recv_frame(struct nci_spi_dev *nsdev)
 	rx.len = 2;
 	rx.cs_change = 1;
 	spi_message_add_tail(&rx, &m);
-	ret = spi_sync(nsdev->spi, &m);
+	ret = spi_sync(nspi->spi, &m);
 
 	if (ret)
 		return NULL;
 
-	if (nsdev->acknowledge_mode == NCI_SPI_CRC_ENABLED)
+	if (nspi->acknowledge_mode == NCI_SPI_CRC_ENABLED)
 		rx_len = ((resp_hdr[0] & NCI_SPI_MSB_PAYLOAD_MASK) << 8) +
 				resp_hdr[1] + NCI_SPI_CRC_LEN;
 	else
 		rx_len = (resp_hdr[0] << 8) | resp_hdr[1];
 
-	skb = nci_skb_alloc(nsdev->ndev, rx_len, GFP_KERNEL);
+	skb = nci_skb_alloc(nspi->ndev, rx_len, GFP_KERNEL);
 	if (!skb)
 		return NULL;
 
@@ -271,14 +201,14 @@ static struct sk_buff *__nci_spi_recv_frame(struct nci_spi_dev *nsdev)
 	rx.rx_buf = skb_put(skb, rx_len);
 	rx.len = rx_len;
 	rx.cs_change = 0;
-	rx.delay_usecs = nsdev->xfer_udelay;
+	rx.delay_usecs = nspi->xfer_udelay;
 	spi_message_add_tail(&rx, &m);
-	ret = spi_sync(nsdev->spi, &m);
+	ret = spi_sync(nspi->spi, &m);
 
 	if (ret)
 		goto receive_error;
 
-	if (nsdev->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
+	if (nspi->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
 		*skb_push(skb, 1) = resp_hdr[1];
 		*skb_push(skb, 1) = resp_hdr[0];
 	}
@@ -320,7 +250,7 @@ static u8 nci_spi_get_ack(struct sk_buff *skb)
 /**
  * nci_spi_recv_frame - receive frame from NCI SPI drivers
  *
- * @nsdev: The nci spi device
+ * @nspi: The nci spi
  * Context: can sleep
  *
  * This call may only be used from a context that may sleep.  The sleep
@@ -328,32 +258,32 @@ static u8 nci_spi_get_ack(struct sk_buff *skb)
  *
  * It returns zero on success, else a negative error code.
  */
-int nci_spi_recv_frame(struct nci_spi_dev *nsdev)
+int nci_spi_recv_frame(struct nci_spi *nspi)
 {
 	struct sk_buff *skb;
 	int ret = 0;
 
-	nsdev->ops->deassert_int(nsdev);
+	nspi->ops->deassert_int(nspi);
 
 	/* Retrieve frame from SPI */
-	skb = __nci_spi_recv_frame(nsdev);
+	skb = __nci_spi_recv_frame(nspi);
 	if (!skb) {
 		ret = -EIO;
 		goto done;
 	}
 
-	if (nsdev->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
+	if (nspi->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
 		if (!nci_spi_check_crc(skb)) {
-			send_acknowledge(nsdev, ACKNOWLEDGE_NACK);
+			send_acknowledge(nspi, ACKNOWLEDGE_NACK);
 			goto done;
 		}
 
 		/* In case of acknowledged mode: if ACK or NACK received,
 		 * unblock completion of latest frame sent.
 		 */
-		nsdev->req_result = nci_spi_get_ack(skb);
-		if (nsdev->req_result)
-			complete(&nsdev->req_completion);
+		nspi->req_result = nci_spi_get_ack(skb);
+		if (nspi->req_result)
+			complete(&nspi->req_completion);
 	}
 
 	/* If there is no payload (ACK/NACK only frame),
@@ -364,14 +294,14 @@ int nci_spi_recv_frame(struct nci_spi_dev *nsdev)
 		goto done;
 	}
 
-	if (nsdev->acknowledge_mode == NCI_SPI_CRC_ENABLED)
-		send_acknowledge(nsdev, ACKNOWLEDGE_ACK);
+	if (nspi->acknowledge_mode == NCI_SPI_CRC_ENABLED)
+		send_acknowledge(nspi, ACKNOWLEDGE_ACK);
 
 	/* Forward skb to NCI core layer */
-	ret = nci_recv_frame(nsdev->ndev, skb);
+	ret = nci_recv_frame(nspi->ndev, skb);
 
 done:
-	nsdev->ops->assert_int(nsdev);
+	nspi->ops->assert_int(nspi);
 
 	return ret;
 }
-- 
cgit 


From e29a9e2ae165620d202f3ce45abd3a219b13ffb7 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Wed, 21 Aug 2013 14:46:20 +0200
Subject: NFC: Set active target upon DEP up event reception

As we can potentially get DEP up events without having sent a netlink
command, we need to set the active target properly from dep_link_is_up.
Spontaneous DEP up events can come from devices that detected an active
p2p target. In that case there is no need to call the netlink DEP up
command as the link is already up and running.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 net/nfc/core.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/net/nfc/core.c b/net/nfc/core.c
index 269ffc5288d0..872529105abc 100644
--- a/net/nfc/core.c
+++ b/net/nfc/core.c
@@ -384,6 +384,19 @@ int nfc_dep_link_is_up(struct nfc_dev *dev, u32 target_idx,
 {
 	dev->dep_link_up = true;
 
+	if (!dev->active_target) {
+		struct nfc_target *target;
+
+		target = nfc_find_target(dev, target_idx);
+		if (target == NULL)
+			return -ENOTCONN;
+
+		dev->active_target = target;
+	}
+
+	dev->polling = false;
+	dev->rf_mode = rf_mode;
+
 	nfc_llcp_mac_is_up(dev, target_idx, comm_mode, rf_mode);
 
 	return nfc_genl_dep_link_up_event(dev, target_idx, comm_mode, rf_mode);
-- 
cgit 


From 673088fb42d0d6de500c4d3e22527611982dcce1 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Wed, 21 Aug 2013 15:06:55 +0200
Subject: NFC: pn533: Send ATR_REQ directly for active device detection

In order to improve active devices detection, we send an ATR_REQ between
each passive detection cycle. Without this algorithm, Android 4.3 based
devices running the Broadcom stack are hardly detected.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/nfc/pn533.c | 121 +++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 120 insertions(+), 1 deletion(-)

diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index dc744eabeec1..8cffd73690b8 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -387,6 +387,7 @@ struct pn533 {
 	struct pn533_poll_modulations *poll_mod_active[PN533_POLL_MOD_MAX + 1];
 	u8 poll_mod_count;
 	u8 poll_mod_curr;
+	u8 poll_dep;
 	u32 poll_protocols;
 	u32 listen_protocols;
 	struct timer_list listen_timer;
@@ -1546,6 +1547,9 @@ static int pn533_start_poll_complete(struct pn533 *dev, struct sk_buff *resp)
 	u8 nbtg, tg, *tgdata;
 	int rc, tgdata_len;
 
+	/* Toggle the DEP polling */
+	dev->poll_dep = 1;
+
 	nbtg = resp->data[0];
 	tg = resp->data[1];
 	tgdata = &resp->data[2];
@@ -1767,6 +1771,117 @@ static void pn533_wq_rf(struct work_struct *work)
 	return;
 }
 
+static int pn533_poll_dep_complete(struct pn533 *dev, void *arg,
+				   struct sk_buff *resp)
+{
+	struct pn533_cmd_jump_dep_response *rsp;
+	struct nfc_target nfc_target;
+	u8 target_gt_len;
+	int rc;
+
+	if (IS_ERR(resp))
+		return PTR_ERR(resp);
+
+	rsp = (struct pn533_cmd_jump_dep_response *)resp->data;
+
+	rc = rsp->status & PN533_CMD_RET_MASK;
+	if (rc != PN533_CMD_RET_SUCCESS) {
+		/* Not target found, turn radio off */
+		queue_work(dev->wq, &dev->rf_work);
+
+		dev_kfree_skb(resp);
+		return 0;
+	}
+
+	dev_dbg(&dev->interface->dev, "Creating new target");
+
+	nfc_target.supported_protocols = NFC_PROTO_NFC_DEP_MASK;
+	nfc_target.nfcid1_len = 10;
+	memcpy(nfc_target.nfcid1, rsp->nfcid3t, nfc_target.nfcid1_len);
+	rc = nfc_targets_found(dev->nfc_dev, &nfc_target, 1);
+	if (rc)
+		goto error;
+
+	dev->tgt_available_prots = 0;
+	dev->tgt_active_prot = NFC_PROTO_NFC_DEP;
+
+	/* ATR_RES general bytes are located at offset 17 */
+	target_gt_len = resp->len - 17;
+	rc = nfc_set_remote_general_bytes(dev->nfc_dev,
+					  rsp->gt, target_gt_len);
+	if (!rc) {
+		rc = nfc_dep_link_is_up(dev->nfc_dev,
+					dev->nfc_dev->targets[0].idx,
+					0, NFC_RF_INITIATOR);
+
+		if (!rc)
+			pn533_poll_reset_mod_list(dev);
+	}
+error:
+	dev_kfree_skb(resp);
+	return rc;
+}
+
+#define PASSIVE_DATA_LEN 5
+static int pn533_poll_dep(struct nfc_dev *nfc_dev)
+{
+	struct pn533 *dev = nfc_get_drvdata(nfc_dev);
+	struct sk_buff *skb;
+	int rc, skb_len;
+	u8 *next, nfcid3[NFC_NFCID3_MAXSIZE];
+	u8 passive_data[PASSIVE_DATA_LEN] = {0x00, 0xff, 0xff, 0x00, 0x3};
+
+	dev_dbg(&dev->interface->dev, "%s", __func__);
+
+	if (!dev->gb) {
+		dev->gb = nfc_get_local_general_bytes(nfc_dev, &dev->gb_len);
+
+		if (!dev->gb || !dev->gb_len) {
+			dev->poll_dep = 0;
+			queue_work(dev->wq, &dev->rf_work);
+		}
+	}
+
+	skb_len = 3 + dev->gb_len; /* ActPass + BR + Next */
+	skb_len += PASSIVE_DATA_LEN;
+
+	/* NFCID3 */
+	skb_len += NFC_NFCID3_MAXSIZE;
+	nfcid3[0] = 0x1;
+	nfcid3[1] = 0xfe;
+	get_random_bytes(nfcid3 + 2, 6);
+
+	skb = pn533_alloc_skb(dev, skb_len);
+	if (!skb)
+		return -ENOMEM;
+
+	*skb_put(skb, 1) = 0x01;  /* Active */
+	*skb_put(skb, 1) = 0x02;  /* 424 kbps */
+
+	next = skb_put(skb, 1);  /* Next */
+	*next = 0;
+
+	/* Copy passive data */
+	memcpy(skb_put(skb, PASSIVE_DATA_LEN), passive_data, PASSIVE_DATA_LEN);
+	*next |= 1;
+
+	/* Copy NFCID3 (which is NFCID2 from SENSF_RES) */
+	memcpy(skb_put(skb, NFC_NFCID3_MAXSIZE), nfcid3,
+	       NFC_NFCID3_MAXSIZE);
+	*next |= 2;
+
+	memcpy(skb_put(skb, dev->gb_len), dev->gb, dev->gb_len);
+	*next |= 4; /* We have some Gi */
+
+	rc = pn533_send_cmd_async(dev, PN533_CMD_IN_JUMP_FOR_DEP, skb,
+				  pn533_poll_dep_complete, NULL);
+
+	if (rc < 0)
+		dev_kfree_skb(skb);
+
+	return rc;
+}
+
 static int pn533_poll_complete(struct pn533 *dev, void *arg,
 			       struct sk_buff *resp)
 {
@@ -1853,6 +1968,11 @@ static int pn533_send_poll_frame(struct pn533 *dev)
 	dev_dbg(&dev->interface->dev, "%s mod len %d\n",
 		__func__, mod->len);
 
+	if (dev->poll_dep)  {
+		dev->poll_dep = 0;
+		return pn533_poll_dep(dev->nfc_dev);
+	}
+
 	if (mod->len == 0) {  /* Listen mode */
 		cmd_code = PN533_CMD_TG_INIT_AS_TARGET;
 		skb = pn533_alloc_poll_tg_frame(dev);
@@ -2146,7 +2266,6 @@ error:
 }
 
 static int pn533_rf_field(struct nfc_dev *nfc_dev, u8 rf);
-#define PASSIVE_DATA_LEN 5
 static int pn533_dep_link_up(struct nfc_dev *nfc_dev, struct nfc_target *target,
 			     u8 comm_mode, u8 *gb, size_t gb_len)
 {
-- 
cgit 


From cec4b8edc9c139ef658e2a26aa38a2a4b768aec6 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Wed, 21 Aug 2013 15:12:06 +0200
Subject: NFC: pn533: Start listen timer from start_poll

If we start the polling loop from a listening cycle, we need to start
the corresponding timer as well.
This bug showed up after commit dfccd0f5 as it was impossible to start
from a listening cycle before it.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/nfc/pn533.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index 8cffd73690b8..dbe962c47a56 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -2027,7 +2027,9 @@ static int pn533_start_poll(struct nfc_dev *nfc_dev,
 			    u32 im_protocols, u32 tm_protocols)
 {
 	struct pn533 *dev = nfc_get_drvdata(nfc_dev);
+	struct pn533_poll_modulations *cur_mod;
 	u8 rand_mod;
+	int rc;
 
 	dev_dbg(&dev->interface->dev,
 		"%s: im protocols 0x%x tm protocols 0x%x\n",
@@ -2060,7 +2062,15 @@ static int pn533_start_poll(struct nfc_dev *nfc_dev,
 	rand_mod %= dev->poll_mod_count;
 	dev->poll_mod_curr = rand_mod;
 
-	return pn533_send_poll_frame(dev);
+	cur_mod = dev->poll_mod_active[dev->poll_mod_curr];
+
+	rc = pn533_send_poll_frame(dev);
+
+	/* Start listen timer */
+	if (!rc && cur_mod->len == 0 && dev->poll_mod_count > 1)
+		mod_timer(&dev->listen_timer, jiffies + PN533_LISTEN_TIME * HZ);
+
+	return rc;
 }
 
 static void pn533_stop_poll(struct nfc_dev *nfc_dev)
-- 
cgit 


From 4b10884eb428c243ae2070a539612e645f3d9b93 Mon Sep 17 00:00:00 2001
From: Thierry Escande <thierry.escande@linux.intel.com>
Date: Thu, 19 Sep 2013 17:55:25 +0200
Subject: NFC: Digital Protocol stack implementation

This is the initial commit of the NFC Digital Protocol stack
implementation.

It offers an interface for devices that don't have an embedded NFC
Digital protocol stack. The driver instantiates the digital stack by
calling nfc_digital_allocate_device(). Within the nfc_digital_ops
structure, the driver specifies a set of function pointers for driver
operations. These functions must be implemented by the driver and are:

in_configure_hw:
Hardware configuration for RF technology and communication framing in
initiator mode. This is a synchronous function.

in_send_cmd:
Initiator mode data exchange using RF technology and framing previously
set with in_configure_hw. The peer response is returned through
callback cb. If an io error occurs or the peer didn't reply within the
specified timeout (ms), the error code is passed back through the resp
pointer. This is an asynchronous function.

tg_configure_hw:
Hardware configuration for RF technology and communication framing in
target mode. This is a synchronous function.

tg_send_cmd:
Target mode data exchange using RF technology and framing previously
set with tg_configure_hw. The peer next command is returned through
callback cb. If an io error occurs or the peer didn't reply within the
specified timeout (ms), the error code is passed back through the resp
pointer. This is an asynchronous function.

tg_listen:
Put the device in listen mode waiting for data from the peer device.
This is an asynchronous function.

tg_listen_mdaa:
If supported, put the device in automatic listen mode with mode
detection and automatic anti-collision. In this mode, the device
automatically detects the RF technology and executes the
anti-collision detection using the command responses specified in
mdaa_params. The mdaa_params structure contains SENS_RES, NFCID1, and
SEL_RES for 106A RF tech. NFCID2 and system code (sc) for 212F and
424F. The driver returns the NFC-DEP ATR_REQ command through cb. The
digital stack deducts the RF tech by analyzing the SoD of the frame
containing the ATR_REQ command. This is an asynchronous function.

switch_rf:
Turns device radio on or off. The stack does not call explicitly
switch_rf to turn the radio on. A call to in|tg_configure_hw must turn
the device radio on.

abort_cmd:
Discard the last sent command.

Then the driver registers itself against the digital stack by using
nfc_digital_register_device() which in turn registers the digital stack
against the NFC core layer. The digital stack implements common NFC
operations like dev_up(), dev_down(), start_poll(), stop_poll(), etc.

This patch is only a skeleton and NFC operations are just stubs.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 include/net/nfc/digital.h | 199 ++++++++++++++++++++++++++++++++++++++++++++++
 net/nfc/Kconfig           |  12 +++
 net/nfc/Makefile          |   2 +
 net/nfc/digital.h         |  27 +++++++
 net/nfc/digital_core.c    | 151 +++++++++++++++++++++++++++++++++++
 5 files changed, 391 insertions(+)
 create mode 100644 include/net/nfc/digital.h
 create mode 100644 net/nfc/digital.h
 create mode 100644 net/nfc/digital_core.c

diff --git a/include/net/nfc/digital.h b/include/net/nfc/digital.h
new file mode 100644
index 000000000000..8e16b6e0265a
--- /dev/null
+++ b/include/net/nfc/digital.h
@@ -0,0 +1,199 @@
+/*
+ * NFC Digital Protocol stack
+ * Copyright (c) 2013, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef __NFC_DIGITAL_H
+#define __NFC_DIGITAL_H
+
+#include <linux/skbuff.h>
+#include <net/nfc/nfc.h>
+
+/**
+ * Configuration types for in_configure_hw and tg_configure_hw.
+ */
+enum {
+	NFC_DIGITAL_CONFIG_RF_TECH = 0,
+	NFC_DIGITAL_CONFIG_FRAMING,
+};
+
+/**
+ * RF technology values passed as param argument to in_configure_hw and
+ * tg_configure_hw for NFC_DIGITAL_CONFIG_RF_TECH configuration type.
+ */
+enum {
+	NFC_DIGITAL_RF_TECH_106A = 0,
+	NFC_DIGITAL_RF_TECH_212F,
+	NFC_DIGITAL_RF_TECH_424F,
+
+	NFC_DIGITAL_RF_TECH_LAST,
+};
+
+/**
+ * Framing configuration passed as param argument to in_configure_hw and
+ * tg_configure_hw for NFC_DIGITAL_CONFIG_FRAMING configuration type.
+ */
+enum {
+	NFC_DIGITAL_FRAMING_NFCA_SHORT = 0,
+	NFC_DIGITAL_FRAMING_NFCA_STANDARD,
+	NFC_DIGITAL_FRAMING_NFCA_STANDARD_WITH_CRC_A,
+
+	NFC_DIGITAL_FRAMING_NFCA_T1T,
+	NFC_DIGITAL_FRAMING_NFCA_T2T,
+	NFC_DIGITAL_FRAMING_NFCA_NFC_DEP,
+
+	NFC_DIGITAL_FRAMING_NFCF,
+	NFC_DIGITAL_FRAMING_NFCF_T3T,
+	NFC_DIGITAL_FRAMING_NFCF_NFC_DEP,
+	NFC_DIGITAL_FRAMING_NFC_DEP_ACTIVATED,
+
+	NFC_DIGITAL_FRAMING_LAST,
+};
+
+#define DIGITAL_MDAA_NFCID1_SIZE 3
+
+struct digital_tg_mdaa_params {
+	u16 sens_res;
+	u8 nfcid1[DIGITAL_MDAA_NFCID1_SIZE];
+	u8 sel_res;
+
+	u8 nfcid2[NFC_NFCID2_MAXSIZE];
+	u16 sc;
+};
+
+struct nfc_digital_dev;
+
+/**
+ * nfc_digital_cmd_complete_t - Definition of command result callback
+ *
+ * @ddev: nfc_digital_device ref
+ * @arg: user data
+ * @resp: response data
+ *
+ * resp pointer can be an error code and will be checked with IS_ERR() macro.
+ * The callback is responsible for freeing resp sk_buff.
+ */
+typedef void (*nfc_digital_cmd_complete_t)(struct nfc_digital_dev *ddev,
+					   void *arg, struct sk_buff *resp);
+
+/**
+ * Device side NFC Digital operations
+ *
+ * Initiator mode:
+ * @in_configure_hw: Hardware configuration for RF technology and communication
+ *	framing in initiator mode. This is a synchronous function.
+ * @in_send_cmd: Initiator mode data exchange using RF technology and framing
+ *	previously set with in_configure_hw. The peer response is returned
+ *	through callback cb. If an io error occurs or the peer didn't reply
+ *	within the specified timeout (ms), the error code is passed back through
+ *	the resp pointer. This is an asynchronous function.
+ *
+ * Target mode: Only NFC-DEP protocol is supported in target mode.
+ * @tg_configure_hw: Hardware configuration for RF technology and communication
+ *	framing in target mode. This is a synchronous function.
+ * @tg_send_cmd: Target mode data exchange using RF technology and framing
+ *	previously set with tg_configure_hw. The peer next command is returned
+ *	through callback cb. If an io error occurs or the peer didn't reply
+ *	within the specified timeout (ms), the error code is passed back through
+ *	the resp pointer. This is an asynchronous function.
+ * @tg_listen: Put the device in listen mode waiting for data from the peer
+ *	device. This is an asynchronous function.
+ * @tg_listen_mdaa: If supported, put the device in automatic listen mode with
+ *	mode detection and automatic anti-collision. In this mode, the device
+ *	automatically detects the RF technology and executes the anti-collision
+ *	detection using the command responses specified in mdaa_params. The
+ *	mdaa_params structure contains SENS_RES, NFCID1, and SEL_RES for 106A RF
+ *	tech. NFCID2 and system code (sc) for 212F and 424F. The driver returns
+ *	the NFC-DEP ATR_REQ command through cb. The digital stack deducts the RF
+ *	tech by analyzing the SoD of the frame containing the ATR_REQ command.
+ *	This is an asynchronous function.
+ *
+ * @switch_rf: Turns device radio on or off. The stack does not call explicitly
+ *	switch_rf to turn the radio on. A call to in|tg_configure_hw must turn
+ *	the device radio on.
+ * @abort_cmd: Discard the last sent command.
+ */
+struct nfc_digital_ops {
+	int (*in_configure_hw)(struct nfc_digital_dev *ddev, int type,
+			       int param);
+	int (*in_send_cmd)(struct nfc_digital_dev *ddev, struct sk_buff *skb,
+			   u16 timeout, nfc_digital_cmd_complete_t cb,
+			   void *arg);
+
+	int (*tg_configure_hw)(struct nfc_digital_dev *ddev, int type,
+			       int param);
+	int (*tg_send_cmd)(struct nfc_digital_dev *ddev, struct sk_buff *skb,
+			   u16 timeout, nfc_digital_cmd_complete_t cb,
+			   void *arg);
+	int (*tg_listen)(struct nfc_digital_dev *ddev, u16 timeout,
+			 nfc_digital_cmd_complete_t cb, void *arg);
+	int (*tg_listen_mdaa)(struct nfc_digital_dev *ddev,
+			      struct digital_tg_mdaa_params *mdaa_params,
+			      u16 timeout, nfc_digital_cmd_complete_t cb,
+			      void *arg);
+
+	int (*switch_rf)(struct nfc_digital_dev *ddev, bool on);
+	void (*abort_cmd)(struct nfc_digital_dev *ddev);
+};
+
+/**
+ * Driver capabilities - bit mask made of the following values
+ *
+ * @NFC_DIGITAL_DRV_CAPS_IN_CRC: The driver handles CRC calculation in initiator
+ *	mode.
+ * @NFC_DIGITAL_DRV_CAPS_TG_CRC: The driver handles CRC calculation in target
+ *	mode.
+ */
+#define NFC_DIGITAL_DRV_CAPS_IN_CRC	0x0001
+#define NFC_DIGITAL_DRV_CAPS_TG_CRC	0x0002
+
+struct nfc_digital_dev {
+	struct nfc_dev *nfc_dev;
+	struct nfc_digital_ops *ops;
+
+	u32 protocols;
+
+	int tx_headroom;
+	int tx_tailroom;
+
+	u32 driver_capabilities;
+	void *driver_data;
+};
+
+struct nfc_digital_dev *nfc_digital_allocate_device(struct nfc_digital_ops *ops,
+						    __u32 supported_protocols,
+						    __u32 driver_capabilities,
+						    int tx_headroom,
+						    int tx_tailroom);
+void nfc_digital_free_device(struct nfc_digital_dev *ndev);
+int nfc_digital_register_device(struct nfc_digital_dev *ndev);
+void nfc_digital_unregister_device(struct nfc_digital_dev *ndev);
+
+static inline void nfc_digital_set_parent_dev(struct nfc_digital_dev *ndev,
+					      struct device *dev)
+{
+	nfc_set_parent_dev(ndev->nfc_dev, dev);
+}
+
+static inline void nfc_digital_set_drvdata(struct nfc_digital_dev *dev,
+					   void *data)
+{
+	dev->driver_data = data;
+}
+
+static inline void *nfc_digital_get_drvdata(struct nfc_digital_dev *dev)
+{
+	return dev->driver_data;
+}
+
+#endif /* __NFC_DIGITAL_H */
diff --git a/net/nfc/Kconfig b/net/nfc/Kconfig
index 5948b2fc72f6..13e1237e1ea1 100644
--- a/net/nfc/Kconfig
+++ b/net/nfc/Kconfig
@@ -14,6 +14,18 @@ menuconfig NFC
 	  To compile this support as a module, choose M here: the module will
 	  be called nfc.
 
+config NFC_DIGITAL
+	depends on NFC
+	tristate "NFC Digital Protocol stack support"
+	default n
+	help
+	  Say Y if you want to build NFC digital protocol stack support.
+	  This is needed by NFC chipsets whose firmware only implement
+	  the NFC analog layer.
+
+	  To compile this support as a module, choose M here: the module will
+	  be called nfc_digital.
+
 source "net/nfc/nci/Kconfig"
 source "net/nfc/hci/Kconfig"
 
diff --git a/net/nfc/Makefile b/net/nfc/Makefile
index a76f4533cb6c..8e0cabd85e99 100644
--- a/net/nfc/Makefile
+++ b/net/nfc/Makefile
@@ -5,7 +5,9 @@
 obj-$(CONFIG_NFC) += nfc.o
 obj-$(CONFIG_NFC_NCI) += nci/
 obj-$(CONFIG_NFC_HCI) += hci/
+obj-$(CONFIG_NFC_DIGITAL) += nfc_digital.o
 
 nfc-objs := core.o netlink.o af_nfc.o rawsock.o llcp_core.o llcp_commands.o \
 		llcp_sock.o
 
+nfc_digital-objs := digital_core.o
diff --git a/net/nfc/digital.h b/net/nfc/digital.h
new file mode 100644
index 000000000000..8d91ed820912
--- /dev/null
+++ b/net/nfc/digital.h
@@ -0,0 +1,27 @@
+/*
+ * NFC Digital Protocol stack
+ * Copyright (c) 2013, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#ifndef __DIGITAL_H
+#define __DIGITAL_H
+
+#include <net/nfc/nfc.h>
+#include <net/nfc/digital.h>
+
+#define PR_DBG(fmt, ...)  pr_debug("%s: " fmt "\n", __func__, ##__VA_ARGS__)
+#define PR_ERR(fmt, ...)  pr_err("%s: " fmt "\n", __func__, ##__VA_ARGS__)
+#define PROTOCOL_ERR(req) pr_err("%s:%d: NFC Digital Protocol error: %s\n", \
+				 __func__, __LINE__, req)
+
+#endif /* __DIGITAL_H */
diff --git a/net/nfc/digital_core.c b/net/nfc/digital_core.c
new file mode 100644
index 000000000000..471188a0d2e0
--- /dev/null
+++ b/net/nfc/digital_core.c
@@ -0,0 +1,151 @@
+/*
+ * NFC Digital Protocol stack
+ * Copyright (c) 2013, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#include <linux/module.h>
+
+#include "digital.h"
+
+static int digital_start_poll(struct nfc_dev *nfc_dev, __u32 im_protocols,
+			      __u32 tm_protocols)
+{
+	return -EOPNOTSUPP;
+}
+
+static void digital_stop_poll(struct nfc_dev *nfc_dev)
+{
+}
+
+static int digital_dev_up(struct nfc_dev *nfc_dev)
+{
+	return -EOPNOTSUPP;
+}
+
+static int digital_dev_down(struct nfc_dev *nfc_dev)
+{
+	return -EOPNOTSUPP;
+}
+
+static int digital_dep_link_up(struct nfc_dev *nfc_dev,
+			       struct nfc_target *target,
+			       __u8 comm_mode, __u8 *gb, size_t gb_len)
+{
+	return -EOPNOTSUPP;
+}
+
+static int digital_dep_link_down(struct nfc_dev *nfc_dev)
+{
+	return -EOPNOTSUPP;
+}
+
+static int digital_activate_target(struct nfc_dev *nfc_dev,
+				   struct nfc_target *target, __u32 protocol)
+{
+	return -EOPNOTSUPP;
+}
+
+static void digital_deactivate_target(struct nfc_dev *nfc_dev,
+				      struct nfc_target *target)
+{
+}
+
+static int digital_tg_send(struct nfc_dev *dev, struct sk_buff *skb)
+{
+	return -EOPNOTSUPP;
+}
+
+static int digital_in_send(struct nfc_dev *nfc_dev, struct nfc_target *target,
+			   struct sk_buff *skb, data_exchange_cb_t cb,
+			   void *cb_context)
+{
+	return -EOPNOTSUPP;
+}
+
+static struct nfc_ops digital_nfc_ops = {
+	.dev_up = digital_dev_up,
+	.dev_down = digital_dev_down,
+	.start_poll = digital_start_poll,
+	.stop_poll = digital_stop_poll,
+	.dep_link_up = digital_dep_link_up,
+	.dep_link_down = digital_dep_link_down,
+	.activate_target = digital_activate_target,
+	.deactivate_target = digital_deactivate_target,
+	.tm_send = digital_tg_send,
+	.im_transceive = digital_in_send,
+};
+
+struct nfc_digital_dev *nfc_digital_allocate_device(struct nfc_digital_ops *ops,
+					    __u32 supported_protocols,
+					    __u32 driver_capabilities,
+					    int tx_headroom, int tx_tailroom)
+{
+	struct nfc_digital_dev *ddev;
+
+	if (!ops->in_configure_hw || !ops->in_send_cmd || !ops->tg_listen ||
+	    !ops->tg_configure_hw || !ops->tg_send_cmd || !ops->abort_cmd ||
+	    !ops->switch_rf)
+		return NULL;
+
+	ddev = kzalloc(sizeof(struct nfc_digital_dev), GFP_KERNEL);
+	if (!ddev) {
+		PR_ERR("kzalloc failed");
+		return NULL;
+	}
+
+	ddev->driver_capabilities = driver_capabilities;
+	ddev->ops = ops;
+
+	ddev->tx_headroom = tx_headroom;
+	ddev->tx_tailroom = tx_tailroom;
+
+	ddev->nfc_dev = nfc_allocate_device(&digital_nfc_ops, ddev->protocols,
+					    ddev->tx_headroom,
+					    ddev->tx_tailroom);
+	if (!ddev->nfc_dev) {
+		PR_ERR("nfc_allocate_device failed");
+		goto free_dev;
+	}
+
+	nfc_set_drvdata(ddev->nfc_dev, ddev);
+
+	return ddev;
+
+free_dev:
+	kfree(ddev);
+
+	return NULL;
+}
+EXPORT_SYMBOL(nfc_digital_allocate_device);
+
+void nfc_digital_free_device(struct nfc_digital_dev *ddev)
+{
+	nfc_free_device(ddev->nfc_dev);
+
+	kfree(ddev);
+}
+EXPORT_SYMBOL(nfc_digital_free_device);
+
+int nfc_digital_register_device(struct nfc_digital_dev *ddev)
+{
+	return nfc_register_device(ddev->nfc_dev);
+}
+EXPORT_SYMBOL(nfc_digital_register_device);
+
+void nfc_digital_unregister_device(struct nfc_digital_dev *ddev)
+{
+	nfc_unregister_device(ddev->nfc_dev);
+}
+EXPORT_SYMBOL(nfc_digital_unregister_device);
+
+MODULE_LICENSE("GPL");
-- 
cgit 


From d8dea1eb36bcc004416b9587f09730430905e5b7 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: vmxnet3: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/vmxnet3/vmxnet3_int.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/vmxnet3/vmxnet3_int.h b/drivers/net/vmxnet3/vmxnet3_int.h
index a03f358fd58b..12040a35d95d 100644
--- a/drivers/net/vmxnet3/vmxnet3_int.h
+++ b/drivers/net/vmxnet3/vmxnet3_int.h
@@ -410,9 +410,9 @@ int
 vmxnet3_create_queues(struct vmxnet3_adapter *adapter,
 		      u32 tx_ring_size, u32 rx_ring_size, u32 rx_ring2_size);
 
-extern void vmxnet3_set_ethtool_ops(struct net_device *netdev);
+void vmxnet3_set_ethtool_ops(struct net_device *netdev);
 
-extern struct rtnl_link_stats64 *
+struct rtnl_link_stats64 *
 vmxnet3_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats);
 
 extern char vmxnet3_driver_name[];
-- 
cgit 


From 65c8f953621acc51fd45662191ca21126b75d142 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: wan: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/wan/x25_asy.h |  2 +-
 drivers/net/wan/z85230.h  | 27 +++++++++++++--------------
 2 files changed, 14 insertions(+), 15 deletions(-)

diff --git a/drivers/net/wan/x25_asy.h b/drivers/net/wan/x25_asy.h
index 8f0fc2e57e2b..f57ee67836ae 100644
--- a/drivers/net/wan/x25_asy.h
+++ b/drivers/net/wan/x25_asy.h
@@ -41,6 +41,6 @@ struct x25_asy {
 
 #define X25_ASY_MAGIC 0x5303
 
-extern int x25_asy_init(struct net_device *dev);
+int x25_asy_init(struct net_device *dev);
 
 #endif	/* _LINUX_X25_ASY.H */
diff --git a/drivers/net/wan/z85230.h b/drivers/net/wan/z85230.h
index f29d554fc07d..2416a9d60bd6 100644
--- a/drivers/net/wan/z85230.h
+++ b/drivers/net/wan/z85230.h
@@ -395,20 +395,19 @@ struct z8530_dev
 extern u8 z8530_dead_port[];
 extern u8 z8530_hdlc_kilostream_85230[];
 extern u8 z8530_hdlc_kilostream[];
-extern irqreturn_t z8530_interrupt(int, void *);
-extern void z8530_describe(struct z8530_dev *, char *mapping, unsigned long io);
-extern int z8530_init(struct z8530_dev *);
-extern int z8530_shutdown(struct z8530_dev *);
-extern int z8530_sync_open(struct net_device *, struct z8530_channel *);
-extern int z8530_sync_close(struct net_device *, struct z8530_channel *);
-extern int z8530_sync_dma_open(struct net_device *, struct z8530_channel *);
-extern int z8530_sync_dma_close(struct net_device *, struct z8530_channel *);
-extern int z8530_sync_txdma_open(struct net_device *, struct z8530_channel *);
-extern int z8530_sync_txdma_close(struct net_device *, struct z8530_channel *);
-extern int z8530_channel_load(struct z8530_channel *, u8 *);
-extern netdev_tx_t z8530_queue_xmit(struct z8530_channel *c,
-					  struct sk_buff *skb);
-extern void z8530_null_rx(struct z8530_channel *c, struct sk_buff *skb);
+irqreturn_t z8530_interrupt(int, void *);
+void z8530_describe(struct z8530_dev *, char *mapping, unsigned long io);
+int z8530_init(struct z8530_dev *);
+int z8530_shutdown(struct z8530_dev *);
+int z8530_sync_open(struct net_device *, struct z8530_channel *);
+int z8530_sync_close(struct net_device *, struct z8530_channel *);
+int z8530_sync_dma_open(struct net_device *, struct z8530_channel *);
+int z8530_sync_dma_close(struct net_device *, struct z8530_channel *);
+int z8530_sync_txdma_open(struct net_device *, struct z8530_channel *);
+int z8530_sync_txdma_close(struct net_device *, struct z8530_channel *);
+int z8530_channel_load(struct z8530_channel *, u8 *);
+netdev_tx_t z8530_queue_xmit(struct z8530_channel *c, struct sk_buff *skb);
+void z8530_null_rx(struct z8530_channel *c, struct sk_buff *skb);
 
 
 /*
-- 
cgit 


From 8bedb968b246c5bf5009f8f083451506a496d6e8 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: wimax: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/wimax/i2400m/i2400m-usb.h |  27 ++++----
 drivers/net/wimax/i2400m/i2400m.h     | 117 +++++++++++++++++-----------------
 2 files changed, 70 insertions(+), 74 deletions(-)

diff --git a/drivers/net/wimax/i2400m/i2400m-usb.h b/drivers/net/wimax/i2400m/i2400m-usb.h
index 9f1e947f3557..649ecad6844c 100644
--- a/drivers/net/wimax/i2400m/i2400m-usb.h
+++ b/drivers/net/wimax/i2400m/i2400m-usb.h
@@ -256,21 +256,20 @@ void i2400mu_init(struct i2400mu *i2400mu)
 	i2400mu->rx_size_auto_shrink = 1;
 }
 
-extern int i2400mu_notification_setup(struct i2400mu *);
-extern void i2400mu_notification_release(struct i2400mu *);
+int i2400mu_notification_setup(struct i2400mu *);
+void i2400mu_notification_release(struct i2400mu *);
 
-extern int i2400mu_rx_setup(struct i2400mu *);
-extern void i2400mu_rx_release(struct i2400mu *);
-extern void i2400mu_rx_kick(struct i2400mu *);
+int i2400mu_rx_setup(struct i2400mu *);
+void i2400mu_rx_release(struct i2400mu *);
+void i2400mu_rx_kick(struct i2400mu *);
 
-extern int i2400mu_tx_setup(struct i2400mu *);
-extern void i2400mu_tx_release(struct i2400mu *);
-extern void i2400mu_bus_tx_kick(struct i2400m *);
+int i2400mu_tx_setup(struct i2400mu *);
+void i2400mu_tx_release(struct i2400mu *);
+void i2400mu_bus_tx_kick(struct i2400m *);
 
-extern ssize_t i2400mu_bus_bm_cmd_send(struct i2400m *,
-				       const struct i2400m_bootrom_header *,
-				       size_t, int);
-extern ssize_t i2400mu_bus_bm_wait_for_ack(struct i2400m *,
-					   struct i2400m_bootrom_header *,
-					   size_t);
+ssize_t i2400mu_bus_bm_cmd_send(struct i2400m *,
+				const struct i2400m_bootrom_header *, size_t,
+				int);
+ssize_t i2400mu_bus_bm_wait_for_ack(struct i2400m *,
+				    struct i2400m_bootrom_header *, size_t);
 #endif /* #ifndef __I2400M_USB_H__ */
diff --git a/drivers/net/wimax/i2400m/i2400m.h b/drivers/net/wimax/i2400m/i2400m.h
index 79c6505b5c20..5a34e72bab9a 100644
--- a/drivers/net/wimax/i2400m/i2400m.h
+++ b/drivers/net/wimax/i2400m/i2400m.h
@@ -710,18 +710,18 @@ enum i2400m_bri {
 	I2400M_BRI_MAC_REINIT = 1 << 3,
 };
 
-extern void i2400m_bm_cmd_prepare(struct i2400m_bootrom_header *);
-extern int i2400m_dev_bootstrap(struct i2400m *, enum i2400m_bri);
-extern int i2400m_read_mac_addr(struct i2400m *);
-extern int i2400m_bootrom_init(struct i2400m *, enum i2400m_bri);
-extern int i2400m_is_boot_barker(struct i2400m *, const void *, size_t);
+void i2400m_bm_cmd_prepare(struct i2400m_bootrom_header *);
+int i2400m_dev_bootstrap(struct i2400m *, enum i2400m_bri);
+int i2400m_read_mac_addr(struct i2400m *);
+int i2400m_bootrom_init(struct i2400m *, enum i2400m_bri);
+int i2400m_is_boot_barker(struct i2400m *, const void *, size_t);
 static inline
 int i2400m_is_d2h_barker(const void *buf)
 {
 	const __le32 *barker = buf;
 	return le32_to_cpu(*barker) == I2400M_D2H_MSG_BARKER;
 }
-extern void i2400m_unknown_barker(struct i2400m *, const void *, size_t);
+void i2400m_unknown_barker(struct i2400m *, const void *, size_t);
 
 /* Make/grok boot-rom header commands */
 
@@ -789,32 +789,31 @@ unsigned i2400m_brh_get_signature(const struct i2400m_bootrom_header *hdr)
 /*
  * Driver / device setup and internal functions
  */
-extern void i2400m_init(struct i2400m *);
-extern int i2400m_reset(struct i2400m *, enum i2400m_reset_type);
-extern void i2400m_netdev_setup(struct net_device *net_dev);
-extern int i2400m_sysfs_setup(struct device_driver *);
-extern void i2400m_sysfs_release(struct device_driver *);
-extern int i2400m_tx_setup(struct i2400m *);
-extern void i2400m_wake_tx_work(struct work_struct *);
-extern void i2400m_tx_release(struct i2400m *);
-
-extern int i2400m_rx_setup(struct i2400m *);
-extern void i2400m_rx_release(struct i2400m *);
-
-extern void i2400m_fw_cache(struct i2400m *);
-extern void i2400m_fw_uncache(struct i2400m *);
-
-extern void i2400m_net_rx(struct i2400m *, struct sk_buff *, unsigned,
-			  const void *, int);
-extern void i2400m_net_erx(struct i2400m *, struct sk_buff *,
-			   enum i2400m_cs);
-extern void i2400m_net_wake_stop(struct i2400m *);
+void i2400m_init(struct i2400m *);
+int i2400m_reset(struct i2400m *, enum i2400m_reset_type);
+void i2400m_netdev_setup(struct net_device *net_dev);
+int i2400m_sysfs_setup(struct device_driver *);
+void i2400m_sysfs_release(struct device_driver *);
+int i2400m_tx_setup(struct i2400m *);
+void i2400m_wake_tx_work(struct work_struct *);
+void i2400m_tx_release(struct i2400m *);
+
+int i2400m_rx_setup(struct i2400m *);
+void i2400m_rx_release(struct i2400m *);
+
+void i2400m_fw_cache(struct i2400m *);
+void i2400m_fw_uncache(struct i2400m *);
+
+void i2400m_net_rx(struct i2400m *, struct sk_buff *, unsigned, const void *,
+		   int);
+void i2400m_net_erx(struct i2400m *, struct sk_buff *, enum i2400m_cs);
+void i2400m_net_wake_stop(struct i2400m *);
 enum i2400m_pt;
-extern int i2400m_tx(struct i2400m *, const void *, size_t, enum i2400m_pt);
+int i2400m_tx(struct i2400m *, const void *, size_t, enum i2400m_pt);
 
 #ifdef CONFIG_DEBUG_FS
-extern int i2400m_debugfs_add(struct i2400m *);
-extern void i2400m_debugfs_rm(struct i2400m *);
+int i2400m_debugfs_add(struct i2400m *);
+void i2400m_debugfs_rm(struct i2400m *);
 #else
 static inline int i2400m_debugfs_add(struct i2400m *i2400m)
 {
@@ -824,8 +823,8 @@ static inline void i2400m_debugfs_rm(struct i2400m *i2400m) {}
 #endif
 
 /* Initialize/shutdown the device */
-extern int i2400m_dev_initialize(struct i2400m *);
-extern void i2400m_dev_shutdown(struct i2400m *);
+int i2400m_dev_initialize(struct i2400m *);
+void i2400m_dev_shutdown(struct i2400m *);
 
 extern struct attribute_group i2400m_dev_attr_group;
 
@@ -873,21 +872,21 @@ void i2400m_put(struct i2400m *i2400m)
 	dev_put(i2400m->wimax_dev.net_dev);
 }
 
-extern int i2400m_dev_reset_handle(struct i2400m *, const char *);
-extern int i2400m_pre_reset(struct i2400m *);
-extern int i2400m_post_reset(struct i2400m *);
-extern void i2400m_error_recovery(struct i2400m *);
+int i2400m_dev_reset_handle(struct i2400m *, const char *);
+int i2400m_pre_reset(struct i2400m *);
+int i2400m_post_reset(struct i2400m *);
+void i2400m_error_recovery(struct i2400m *);
 
 /*
  * _setup()/_release() are called by the probe/disconnect functions of
  * the bus-specific drivers.
  */
-extern int i2400m_setup(struct i2400m *, enum i2400m_bri bm_flags);
-extern void i2400m_release(struct i2400m *);
+int i2400m_setup(struct i2400m *, enum i2400m_bri bm_flags);
+void i2400m_release(struct i2400m *);
 
-extern int i2400m_rx(struct i2400m *, struct sk_buff *);
-extern struct i2400m_msg_hdr *i2400m_tx_msg_get(struct i2400m *, size_t *);
-extern void i2400m_tx_msg_sent(struct i2400m *);
+int i2400m_rx(struct i2400m *, struct sk_buff *);
+struct i2400m_msg_hdr *i2400m_tx_msg_get(struct i2400m *, size_t *);
+void i2400m_tx_msg_sent(struct i2400m *);
 
 
 /*
@@ -900,20 +899,19 @@ struct device *i2400m_dev(struct i2400m *i2400m)
 	return i2400m->wimax_dev.net_dev->dev.parent;
 }
 
-extern int i2400m_msg_check_status(const struct i2400m_l3l4_hdr *,
-				   char *, size_t);
-extern int i2400m_msg_size_check(struct i2400m *,
-				 const struct i2400m_l3l4_hdr *, size_t);
-extern struct sk_buff *i2400m_msg_to_dev(struct i2400m *, const void *, size_t);
-extern void i2400m_msg_to_dev_cancel_wait(struct i2400m *, int);
-extern void i2400m_report_hook(struct i2400m *,
-			       const struct i2400m_l3l4_hdr *, size_t);
-extern void i2400m_report_hook_work(struct work_struct *);
-extern int i2400m_cmd_enter_powersave(struct i2400m *);
-extern int i2400m_cmd_exit_idle(struct i2400m *);
-extern struct sk_buff *i2400m_get_device_info(struct i2400m *);
-extern int i2400m_firmware_check(struct i2400m *);
-extern int i2400m_set_idle_timeout(struct i2400m *, unsigned);
+int i2400m_msg_check_status(const struct i2400m_l3l4_hdr *, char *, size_t);
+int i2400m_msg_size_check(struct i2400m *, const struct i2400m_l3l4_hdr *,
+			  size_t);
+struct sk_buff *i2400m_msg_to_dev(struct i2400m *, const void *, size_t);
+void i2400m_msg_to_dev_cancel_wait(struct i2400m *, int);
+void i2400m_report_hook(struct i2400m *, const struct i2400m_l3l4_hdr *,
+			size_t);
+void i2400m_report_hook_work(struct work_struct *);
+int i2400m_cmd_enter_powersave(struct i2400m *);
+int i2400m_cmd_exit_idle(struct i2400m *);
+struct sk_buff *i2400m_get_device_info(struct i2400m *);
+int i2400m_firmware_check(struct i2400m *);
+int i2400m_set_idle_timeout(struct i2400m *, unsigned);
 
 static inline
 struct usb_endpoint_descriptor *usb_get_epd(struct usb_interface *iface, int ep)
@@ -921,10 +919,9 @@ struct usb_endpoint_descriptor *usb_get_epd(struct usb_interface *iface, int ep)
 	return &iface->cur_altsetting->endpoint[ep].desc;
 }
 
-extern int i2400m_op_rfkill_sw_toggle(struct wimax_dev *,
-				      enum wimax_rf_state);
-extern void i2400m_report_tlv_rf_switches_status(
-	struct i2400m *, const struct i2400m_tlv_rf_switches_status *);
+int i2400m_op_rfkill_sw_toggle(struct wimax_dev *, enum wimax_rf_state);
+void i2400m_report_tlv_rf_switches_status(struct i2400m *,
+					  const struct i2400m_tlv_rf_switches_status *);
 
 /*
  * Helpers for firmware backwards compatibility
@@ -968,8 +965,8 @@ void __i2400m_msleep(unsigned ms)
 
 
 /* module initialization helpers */
-extern int i2400m_barker_db_init(const char *);
-extern void i2400m_barker_db_exit(void);
+int i2400m_barker_db_init(const char *);
+void i2400m_barker_db_exit(void);
 
 
 
-- 
cgit 


From a3dabaf02d36dbb4051188b706a3e66e6465c56b Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: ath: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/wireless/ath/ath10k/debug.h  | 8 ++++----
 drivers/net/wireless/ath/ath6kl/common.h | 3 +--
 drivers/net/wireless/ath/ath6kl/debug.h  | 9 ++++-----
 drivers/net/wireless/ath/ath9k/ath9k.h   | 2 +-
 4 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/debug.h b/drivers/net/wireless/ath/ath10k/debug.h
index 168140c54028..bb0063320397 100644
--- a/drivers/net/wireless/ath/ath10k/debug.h
+++ b/drivers/net/wireless/ath/ath10k/debug.h
@@ -37,9 +37,9 @@ enum ath10k_debug_mask {
 
 extern unsigned int ath10k_debug_mask;
 
-extern __printf(1, 2) int ath10k_info(const char *fmt, ...);
-extern __printf(1, 2) int ath10k_err(const char *fmt, ...);
-extern __printf(1, 2) int ath10k_warn(const char *fmt, ...);
+__printf(1, 2) int ath10k_info(const char *fmt, ...);
+__printf(1, 2) int ath10k_err(const char *fmt, ...);
+__printf(1, 2) int ath10k_warn(const char *fmt, ...);
 
 #ifdef CONFIG_ATH10K_DEBUGFS
 int ath10k_debug_create(struct ath10k *ar);
@@ -68,7 +68,7 @@ static inline void ath10k_debug_read_target_stats(struct ath10k *ar,
 #endif /* CONFIG_ATH10K_DEBUGFS */
 
 #ifdef CONFIG_ATH10K_DEBUG
-extern __printf(2, 3) void ath10k_dbg(enum ath10k_debug_mask mask,
+__printf(2, 3) void ath10k_dbg(enum ath10k_debug_mask mask,
 				      const char *fmt, ...);
 void ath10k_dbg_dump(enum ath10k_debug_mask mask,
 		     const char *msg, const char *prefix,
diff --git a/drivers/net/wireless/ath/ath6kl/common.h b/drivers/net/wireless/ath/ath6kl/common.h
index 98a886154d9c..05debf700a84 100644
--- a/drivers/net/wireless/ath/ath6kl/common.h
+++ b/drivers/net/wireless/ath/ath6kl/common.h
@@ -22,8 +22,7 @@
 
 #define ATH6KL_MAX_IE			256
 
-extern __printf(2, 3)
-int ath6kl_printk(const char *level, const char *fmt, ...);
+__printf(2, 3) int ath6kl_printk(const char *level, const char *fmt, ...);
 
 /*
  * Reflects the version of binary interface exposed by ATH6KL target
diff --git a/drivers/net/wireless/ath/ath6kl/debug.h b/drivers/net/wireless/ath/ath6kl/debug.h
index 74369de00fb5..ca9ba005f287 100644
--- a/drivers/net/wireless/ath/ath6kl/debug.h
+++ b/drivers/net/wireless/ath/ath6kl/debug.h
@@ -50,11 +50,10 @@ enum ATH6K_DEBUG_MASK {
 };
 
 extern unsigned int debug_mask;
-extern __printf(2, 3)
-int ath6kl_printk(const char *level, const char *fmt, ...);
-extern __printf(1, 2) int ath6kl_info(const char *fmt, ...);
-extern __printf(1, 2) int ath6kl_err(const char *fmt, ...);
-extern __printf(1, 2) int ath6kl_warn(const char *fmt, ...);
+__printf(2, 3) int ath6kl_printk(const char *level, const char *fmt, ...);
+__printf(1, 2) int ath6kl_info(const char *fmt, ...);
+__printf(1, 2) int ath6kl_err(const char *fmt, ...);
+__printf(1, 2) int ath6kl_warn(const char *fmt, ...);
 
 enum ath6kl_war {
 	ATH6KL_WAR_INVALID_RATE,
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 2ee35f677c0e..da24ba2a5b41 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -952,7 +952,7 @@ void ath9k_ps_restore(struct ath_softc *sc);
 u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate);
 
 void ath_start_rfkill_poll(struct ath_softc *sc);
-extern void ath9k_rfkill_poll_state(struct ieee80211_hw *hw);
+void ath9k_rfkill_poll_state(struct ieee80211_hw *hw);
 void ath9k_calculate_iter_data(struct ieee80211_hw *hw,
 			       struct ieee80211_vif *vif,
 			       struct ath9k_vif_iter_data *iter_data);
-- 
cgit 


From 59ee2361c9248f07846f7a6e585768dcce18fb16 Mon Sep 17 00:00:00 2001
From: Thierry Escande <thierry.escande@linux.intel.com>
Date: Thu, 19 Sep 2013 17:55:26 +0200
Subject: NFC Digital: Implement driver commands mechanism

This implements the mechanism used to send commands to the driver in
initiator mode through in_send_cmd().

Commands are serialized and sent to the driver by using a work item
on the system workqueue. Responses are handled asynchronously by
another work item. Once the digital stack receives the response through
the command_complete callback, the next command is sent to the driver.

This also implements the polling mechanism. It's handled by a work item
cycling on all supported protocols. The start poll command for a given
protocol is sent to the driver using the mechanism described above.
The process continues until a peer is discovered or stop_poll is
called. This patch implements the poll function for NFC-A that sends a
SENS_REQ command and waits for the SENS_RES response.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 include/net/nfc/digital.h    |  25 ++++
 net/nfc/Makefile             |   2 +-
 net/nfc/digital.h            |  29 ++++
 net/nfc/digital_core.c       | 340 ++++++++++++++++++++++++++++++++++++++++++-
 net/nfc/digital_technology.c |  64 ++++++++
 5 files changed, 452 insertions(+), 8 deletions(-)
 create mode 100644 net/nfc/digital_technology.c

diff --git a/include/net/nfc/digital.h b/include/net/nfc/digital.h
index 8e16b6e0265a..aabd89400d23 100644
--- a/include/net/nfc/digital.h
+++ b/include/net/nfc/digital.h
@@ -146,6 +146,15 @@ struct nfc_digital_ops {
 	void (*abort_cmd)(struct nfc_digital_dev *ddev);
 };
 
+#define NFC_DIGITAL_POLL_MODE_COUNT_MAX	6 /* 106A, 212F, and 424F in & tg */
+
+typedef int (*digital_poll_t)(struct nfc_digital_dev *ddev, u8 rf_tech);
+
+struct digital_poll_tech {
+	u8 rf_tech;
+	digital_poll_t poll_func;
+};
+
 /**
  * Driver capabilities - bit mask made of the following values
  *
@@ -168,6 +177,22 @@ struct nfc_digital_dev {
 
 	u32 driver_capabilities;
 	void *driver_data;
+
+	struct digital_poll_tech poll_techs[NFC_DIGITAL_POLL_MODE_COUNT_MAX];
+	u8 poll_tech_count;
+	u8 poll_tech_index;
+	struct mutex poll_lock;
+
+	struct work_struct cmd_work;
+	struct work_struct cmd_complete_work;
+	struct list_head cmd_queue;
+	struct mutex cmd_lock;
+
+	struct work_struct poll_work;
+
+	u8 curr_protocol;
+	u8 curr_rf_tech;
+	u8 curr_nfc_dep_pni;
 };
 
 struct nfc_digital_dev *nfc_digital_allocate_device(struct nfc_digital_ops *ops,
diff --git a/net/nfc/Makefile b/net/nfc/Makefile
index 8e0cabd85e99..2db39713a907 100644
--- a/net/nfc/Makefile
+++ b/net/nfc/Makefile
@@ -10,4 +10,4 @@ obj-$(CONFIG_NFC_DIGITAL) += nfc_digital.o
 nfc-objs := core.o netlink.o af_nfc.o rawsock.o llcp_core.o llcp_commands.o \
 		llcp_sock.o
 
-nfc_digital-objs := digital_core.o
+nfc_digital-objs := digital_core.o digital_technology.o
diff --git a/net/nfc/digital.h b/net/nfc/digital.h
index 8d91ed820912..0a2767098daa 100644
--- a/net/nfc/digital.h
+++ b/net/nfc/digital.h
@@ -24,4 +24,33 @@
 #define PROTOCOL_ERR(req) pr_err("%s:%d: NFC Digital Protocol error: %s\n", \
 				 __func__, __LINE__, req)
 
+#define DIGITAL_CMD_IN_SEND        0
+#define DIGITAL_CMD_TG_SEND        1
+#define DIGITAL_CMD_TG_LISTEN      2
+#define DIGITAL_CMD_TG_LISTEN_MDAA 3
+
+#define DIGITAL_MAX_HEADER_LEN 7
+#define DIGITAL_CRC_LEN        2
+
+struct sk_buff *digital_skb_alloc(struct nfc_digital_dev *ddev,
+				  unsigned int len);
+
+int digital_send_cmd(struct nfc_digital_dev *ddev, u8 cmd_type,
+		     struct sk_buff *skb, u16 timeout,
+		     nfc_digital_cmd_complete_t cmd_cb, void *cb_context);
+
+int digital_in_configure_hw(struct nfc_digital_dev *ddev, int type, int param);
+static inline int digital_in_send_cmd(struct nfc_digital_dev *ddev,
+				      struct sk_buff *skb, u16 timeout,
+				      nfc_digital_cmd_complete_t cmd_cb,
+				      void *cb_context)
+{
+	return digital_send_cmd(ddev, DIGITAL_CMD_IN_SEND, skb, timeout, cmd_cb,
+				cb_context);
+}
+
+void digital_poll_next_tech(struct nfc_digital_dev *ddev);
+
+int digital_in_send_sens_req(struct nfc_digital_dev *ddev, u8 rf_tech);
+
 #endif /* __DIGITAL_H */
diff --git a/net/nfc/digital_core.c b/net/nfc/digital_core.c
index 471188a0d2e0..13abd293ca37 100644
--- a/net/nfc/digital_core.c
+++ b/net/nfc/digital_core.c
@@ -17,24 +17,319 @@
 
 #include "digital.h"
 
+#define DIGITAL_PROTO_NFCA_RF_TECH \
+	(NFC_PROTO_JEWEL_MASK | NFC_PROTO_MIFARE_MASK)
+
+struct digital_cmd {
+	struct list_head queue;
+
+	u8 type;
+	u8 pending;
+
+	u16 timeout;
+	struct sk_buff *req;
+	struct sk_buff *resp;
+
+	nfc_digital_cmd_complete_t cmd_cb;
+	void *cb_context;
+};
+
+struct sk_buff *digital_skb_alloc(struct nfc_digital_dev *ddev,
+				  unsigned int len)
+{
+	struct sk_buff *skb;
+
+	skb = alloc_skb(len + ddev->tx_headroom + ddev->tx_tailroom,
+			GFP_KERNEL);
+	if (skb)
+		skb_reserve(skb, ddev->tx_headroom);
+
+	return skb;
+}
+
+static inline void digital_switch_rf(struct nfc_digital_dev *ddev, bool on)
+{
+	ddev->ops->switch_rf(ddev, on);
+}
+
+static inline void digital_abort_cmd(struct nfc_digital_dev *ddev)
+{
+	ddev->ops->abort_cmd(ddev);
+}
+
+static void digital_wq_cmd_complete(struct work_struct *work)
+{
+	struct digital_cmd *cmd;
+	struct nfc_digital_dev *ddev = container_of(work,
+						    struct nfc_digital_dev,
+						    cmd_complete_work);
+
+	mutex_lock(&ddev->cmd_lock);
+
+	cmd = list_first_entry_or_null(&ddev->cmd_queue, struct digital_cmd,
+				       queue);
+	if (!cmd) {
+		mutex_unlock(&ddev->cmd_lock);
+		return;
+	}
+
+	list_del(&cmd->queue);
+
+	mutex_unlock(&ddev->cmd_lock);
+
+	if (!IS_ERR(cmd->resp))
+		print_hex_dump_debug("DIGITAL RX: ", DUMP_PREFIX_NONE, 16, 1,
+				     cmd->resp->data, cmd->resp->len, false);
+
+	cmd->cmd_cb(ddev, cmd->cb_context, cmd->resp);
+
+	kfree(cmd);
+
+	schedule_work(&ddev->cmd_work);
+}
+
+static void digital_send_cmd_complete(struct nfc_digital_dev *ddev,
+				      void *arg, struct sk_buff *resp)
+{
+	struct digital_cmd *cmd = arg;
+
+	cmd->resp = resp;
+
+	schedule_work(&ddev->cmd_complete_work);
+}
+
+static void digital_wq_cmd(struct work_struct *work)
+{
+	int rc;
+	struct digital_cmd *cmd;
+	struct nfc_digital_dev *ddev = container_of(work,
+						    struct nfc_digital_dev,
+						    cmd_work);
+
+	mutex_lock(&ddev->cmd_lock);
+
+	cmd = list_first_entry_or_null(&ddev->cmd_queue, struct digital_cmd,
+				       queue);
+	if (!cmd || cmd->pending) {
+		mutex_unlock(&ddev->cmd_lock);
+		return;
+	}
+
+	mutex_unlock(&ddev->cmd_lock);
+
+	if (cmd->req)
+		print_hex_dump_debug("DIGITAL TX: ", DUMP_PREFIX_NONE, 16, 1,
+				     cmd->req->data, cmd->req->len, false);
+
+	switch (cmd->type) {
+	case DIGITAL_CMD_IN_SEND:
+		rc = ddev->ops->in_send_cmd(ddev, cmd->req, cmd->timeout,
+					    digital_send_cmd_complete, cmd);
+		break;
+	default:
+		PR_ERR("Unknown cmd type %d", cmd->type);
+		return;
+	}
+
+	if (!rc)
+		return;
+
+	PR_ERR("in_send_command returned err %d", rc);
+
+	mutex_lock(&ddev->cmd_lock);
+	list_del(&cmd->queue);
+	mutex_unlock(&ddev->cmd_lock);
+
+	kfree_skb(cmd->req);
+	kfree(cmd);
+
+	schedule_work(&ddev->cmd_work);
+}
+
+int digital_send_cmd(struct nfc_digital_dev *ddev, u8 cmd_type,
+		     struct sk_buff *skb, u16 timeout,
+		     nfc_digital_cmd_complete_t cmd_cb, void *cb_context)
+{
+	struct digital_cmd *cmd;
+
+	cmd = kzalloc(sizeof(struct digital_cmd), GFP_KERNEL);
+	if (!cmd)
+		return -ENOMEM;
+
+	cmd->type = cmd_type;
+	cmd->timeout = timeout;
+	cmd->req = skb;
+	cmd->cmd_cb = cmd_cb;
+	cmd->cb_context = cb_context;
+	INIT_LIST_HEAD(&cmd->queue);
+
+	mutex_lock(&ddev->cmd_lock);
+	list_add_tail(&cmd->queue, &ddev->cmd_queue);
+	mutex_unlock(&ddev->cmd_lock);
+
+	schedule_work(&ddev->cmd_work);
+
+	return 0;
+}
+
+int digital_in_configure_hw(struct nfc_digital_dev *ddev, int type, int param)
+{
+	int rc;
+
+	rc = ddev->ops->in_configure_hw(ddev, type, param);
+	if (rc)
+		PR_ERR("in_configure_hw failed: %d", rc);
+
+	return rc;
+}
+
+void digital_poll_next_tech(struct nfc_digital_dev *ddev)
+{
+	digital_switch_rf(ddev, 0);
+
+	mutex_lock(&ddev->poll_lock);
+
+	if (!ddev->poll_tech_count) {
+		mutex_unlock(&ddev->poll_lock);
+		return;
+	}
+
+	ddev->poll_tech_index = (ddev->poll_tech_index + 1) %
+				ddev->poll_tech_count;
+
+	mutex_unlock(&ddev->poll_lock);
+
+	schedule_work(&ddev->poll_work);
+}
+
+static void digital_wq_poll(struct work_struct *work)
+{
+	int rc;
+	struct digital_poll_tech *poll_tech;
+	struct nfc_digital_dev *ddev = container_of(work,
+						    struct nfc_digital_dev,
+						    poll_work);
+	mutex_lock(&ddev->poll_lock);
+
+	if (!ddev->poll_tech_count) {
+		mutex_unlock(&ddev->poll_lock);
+		return;
+	}
+
+	poll_tech = &ddev->poll_techs[ddev->poll_tech_index];
+
+	mutex_unlock(&ddev->poll_lock);
+
+	rc = poll_tech->poll_func(ddev, poll_tech->rf_tech);
+	if (rc)
+		digital_poll_next_tech(ddev);
+}
+
+static void digital_add_poll_tech(struct nfc_digital_dev *ddev, u8 rf_tech,
+				  digital_poll_t poll_func)
+{
+	struct digital_poll_tech *poll_tech;
+
+	if (ddev->poll_tech_count >= NFC_DIGITAL_POLL_MODE_COUNT_MAX)
+		return;
+
+	poll_tech = &ddev->poll_techs[ddev->poll_tech_count++];
+
+	poll_tech->rf_tech = rf_tech;
+	poll_tech->poll_func = poll_func;
+}
+
+/**
+ * start_poll operation
+ *
+ * For every supported protocol, the corresponding polling function is added
+ * to the table of polling technologies (ddev->poll_techs[]) using
+ * digital_add_poll_tech().
+ * When a polling function fails (by timeout or protocol error) the next one is
+ * schedule by digital_poll_next_tech() on the poll workqueue (ddev->poll_work).
+ */
 static int digital_start_poll(struct nfc_dev *nfc_dev, __u32 im_protocols,
 			      __u32 tm_protocols)
 {
-	return -EOPNOTSUPP;
+	struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
+	u32 matching_im_protocols, matching_tm_protocols;
+
+	PR_DBG("protocols: im 0x%x, tm 0x%x, supported 0x%x", im_protocols,
+	       tm_protocols, ddev->protocols);
+
+	matching_im_protocols = ddev->protocols & im_protocols;
+	matching_tm_protocols = ddev->protocols & tm_protocols;
+
+	if (!matching_im_protocols && !matching_tm_protocols) {
+		PR_ERR("No known protocol");
+		return -EINVAL;
+	}
+
+	if (ddev->poll_tech_count) {
+		PR_ERR("Already polling");
+		return -EBUSY;
+	}
+
+	if (ddev->curr_protocol) {
+		PR_ERR("A target is already active");
+		return -EBUSY;
+	}
+
+	ddev->poll_tech_count = 0;
+	ddev->poll_tech_index = 0;
+
+	if (matching_im_protocols & DIGITAL_PROTO_NFCA_RF_TECH)
+		digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_106A,
+				      digital_in_send_sens_req);
+
+	if (!ddev->poll_tech_count) {
+		PR_ERR("Unsupported protocols: im=0x%x, tm=0x%x",
+		       matching_im_protocols, matching_tm_protocols);
+		return -EINVAL;
+	}
+
+	schedule_work(&ddev->poll_work);
+
+	return 0;
 }
 
 static void digital_stop_poll(struct nfc_dev *nfc_dev)
 {
+	struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
+
+	mutex_lock(&ddev->poll_lock);
+
+	if (!ddev->poll_tech_count) {
+		PR_ERR("Polling operation was not running");
+		mutex_unlock(&ddev->poll_lock);
+		return;
+	}
+
+	ddev->poll_tech_count = 0;
+
+	mutex_unlock(&ddev->poll_lock);
+
+	cancel_work_sync(&ddev->poll_work);
+
+	digital_abort_cmd(ddev);
 }
 
 static int digital_dev_up(struct nfc_dev *nfc_dev)
 {
-	return -EOPNOTSUPP;
+	struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
+
+	digital_switch_rf(ddev, 1);
+
+	return 0;
 }
 
 static int digital_dev_down(struct nfc_dev *nfc_dev)
 {
-	return -EOPNOTSUPP;
+	struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
+
+	digital_switch_rf(ddev, 0);
+
+	return 0;
 }
 
 static int digital_dep_link_up(struct nfc_dev *nfc_dev,
@@ -52,12 +347,15 @@ static int digital_dep_link_down(struct nfc_dev *nfc_dev)
 static int digital_activate_target(struct nfc_dev *nfc_dev,
 				   struct nfc_target *target, __u32 protocol)
 {
-	return -EOPNOTSUPP;
+	return 0;
 }
 
 static void digital_deactivate_target(struct nfc_dev *nfc_dev,
 				      struct nfc_target *target)
 {
+	struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
+
+	ddev->curr_protocol = 0;
 }
 
 static int digital_tg_send(struct nfc_dev *dev, struct sk_buff *skb)
@@ -106,8 +404,22 @@ struct nfc_digital_dev *nfc_digital_allocate_device(struct nfc_digital_ops *ops,
 	ddev->driver_capabilities = driver_capabilities;
 	ddev->ops = ops;
 
-	ddev->tx_headroom = tx_headroom;
-	ddev->tx_tailroom = tx_tailroom;
+	mutex_init(&ddev->cmd_lock);
+	INIT_LIST_HEAD(&ddev->cmd_queue);
+
+	INIT_WORK(&ddev->cmd_work, digital_wq_cmd);
+	INIT_WORK(&ddev->cmd_complete_work, digital_wq_cmd_complete);
+
+	mutex_init(&ddev->poll_lock);
+	INIT_WORK(&ddev->poll_work, digital_wq_poll);
+
+	if (supported_protocols & NFC_PROTO_JEWEL_MASK)
+		ddev->protocols |= NFC_PROTO_JEWEL_MASK;
+	if (supported_protocols & NFC_PROTO_MIFARE_MASK)
+		ddev->protocols |= NFC_PROTO_MIFARE_MASK;
+
+	ddev->tx_headroom = tx_headroom + DIGITAL_MAX_HEADER_LEN;
+	ddev->tx_tailroom = tx_tailroom + DIGITAL_CRC_LEN;
 
 	ddev->nfc_dev = nfc_allocate_device(&digital_nfc_ops, ddev->protocols,
 					    ddev->tx_headroom,
@@ -131,7 +443,6 @@ EXPORT_SYMBOL(nfc_digital_allocate_device);
 void nfc_digital_free_device(struct nfc_digital_dev *ddev)
 {
 	nfc_free_device(ddev->nfc_dev);
-
 	kfree(ddev);
 }
 EXPORT_SYMBOL(nfc_digital_free_device);
@@ -144,7 +455,22 @@ EXPORT_SYMBOL(nfc_digital_register_device);
 
 void nfc_digital_unregister_device(struct nfc_digital_dev *ddev)
 {
+	struct digital_cmd *cmd, *n;
+
 	nfc_unregister_device(ddev->nfc_dev);
+
+	mutex_lock(&ddev->poll_lock);
+	ddev->poll_tech_count = 0;
+	mutex_unlock(&ddev->poll_lock);
+
+	cancel_work_sync(&ddev->poll_work);
+	cancel_work_sync(&ddev->cmd_work);
+	cancel_work_sync(&ddev->cmd_complete_work);
+
+	list_for_each_entry_safe(cmd, n, &ddev->cmd_queue, queue) {
+		list_del(&cmd->queue);
+		kfree(cmd);
+	}
 }
 EXPORT_SYMBOL(nfc_digital_unregister_device);
 
diff --git a/net/nfc/digital_technology.c b/net/nfc/digital_technology.c
new file mode 100644
index 000000000000..084b0fba5f4d
--- /dev/null
+++ b/net/nfc/digital_technology.c
@@ -0,0 +1,64 @@
+/*
+ * NFC Digital Protocol stack
+ * Copyright (c) 2013, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#include "digital.h"
+
+#define DIGITAL_CMD_SENS_REQ    0x26
+#define DIGITAL_CMD_ALL_REQ     0x52
+#define DIGITAL_CMD_SEL_REQ_CL1 0x93
+#define DIGITAL_CMD_SEL_REQ_CL2 0x95
+#define DIGITAL_CMD_SEL_REQ_CL3 0x97
+
+#define DIGITAL_SDD_REQ_SEL_PAR 0x20
+
+#define DIGITAL_SDD_RES_CT  0x88
+#define DIGITAL_SDD_RES_LEN 5
+
+static void digital_in_recv_sens_res(struct nfc_digital_dev *ddev, void *arg,
+				     struct sk_buff *resp)
+{
+	if (!IS_ERR(resp))
+		dev_kfree_skb(resp);
+
+	digital_poll_next_tech(ddev);
+}
+
+int digital_in_send_sens_req(struct nfc_digital_dev *ddev, u8 rf_tech)
+{
+	struct sk_buff *skb;
+	int rc;
+
+	rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH,
+				     NFC_DIGITAL_RF_TECH_106A);
+	if (rc)
+		return rc;
+
+	rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,
+				     NFC_DIGITAL_FRAMING_NFCA_SHORT);
+	if (rc)
+		return rc;
+
+	skb = digital_skb_alloc(ddev, 1);
+	if (!skb)
+		return -ENOMEM;
+
+	*skb_put(skb, sizeof(u8)) = DIGITAL_CMD_SENS_REQ;
+
+	rc = digital_in_send_cmd(ddev, skb, 30, digital_in_recv_sens_res, NULL);
+	if (rc)
+		kfree_skb(skb);
+
+	return rc;
+}
-- 
cgit 


From 2c66daecc4092e6049673c281b2e6f0d5e59a94c Mon Sep 17 00:00:00 2001
From: Thierry Escande <thierry.escande@linux.intel.com>
Date: Thu, 19 Sep 2013 17:55:27 +0200
Subject: NFC Digital: Add NFC-A technology support

This adds support for NFC-A technology at 106 kbits/s. The stack can
detect tags of type 1 and 2. There is no support for collision
detection. Tags can be read and written by using a user space
application or a daemon like neard.

The flow of polling operations for NFC-A detection is as follow:

1 - The digital stack sends the SENS_REQ command to the NFC device.
2 - The NFC device receives a SENS_RES response from a peer device and
    passes it to the digital stack.
3   - If the SENS_RES response identifies a type 1 tag, detection ends.
      NFC core is notified through nfc_targets_found().
4   - Otherwise, the digital stack sets the cascade level of NFCID1 to
      CL1 and sends the SDD_REQ command.
5 - The digital stack selects SEL_CMD and SEL_PAR according to the
    cascade level and sends the SDD_REQ command.
4 - The digital stack receives a SDD_RES response for the cascade level
    passed in the SDD_REQ command.
5 - The digital stack analyses (part of) NFCID1 and verify BCC.
6 - The digital stack sends the SEL_REQ command with the NFCID1
    received in the SDD_RES.
6 - The peer device replies with a SEL_RES response
7   - Detection ends if NFCID1 is complete. NFC core notified of new
      target by nfc_targets_found().
8   - If NFCID1 is not complete, the cascade level is incremented (up
      to and including CL3) and the execution continues at step 5 to
      get the remaining bytes of NFCID1.

Once target detection is done, type 1 and 2 tag commands must be
handled by a user space application (i.e neard) through the NFC core.
Responses for type 1 tag are returned directly to user space via NFC
core.
Responses of type 2 commands are handled differently. The digital stack
doesn't analyse the type of commands sent through im_transceive() and
must differentiate valid responses from error ones.
The response process flow is as follow:

1 - If the response length is 16 bytes, it is a valid response of a
    READ command. the packet is returned to the NFC core through the
    callback passed to im_transceive(). Processing stops.
2 - If the response is 1 byte long and is a ACK byte (0x0A), it is a
    valid response of a WRITE command for example. First packet byte
    is set to 0 for no-error and passed back to the NFC core.
    Processing stops.
3 - Any other response is treated as an error and -EIO error code is
    returned to the NFC core through the response callback.

Moreover, since the driver can't differentiate success response from a
NACK response, the digital stack has to handle CRC calculation.

Thus, this patch also adds support for CRC calculation. If the driver
doesn't handle it, the digital stack will calculate CRC and will add it
to sent frames. CRC will also be checked and removed from received
frames. Pointers to the correct CRC calculation functions are stored in
the digital stack device structure when a target is detected. This
avoids the need to check the current target type for every call to
im_transceive() and for every response received from a peer device.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 include/net/nfc/digital.h    |   3 +
 net/nfc/Kconfig              |   1 +
 net/nfc/digital.h            |  58 +++++++++
 net/nfc/digital_core.c       | 145 +++++++++++++++++++++-
 net/nfc/digital_technology.c | 288 ++++++++++++++++++++++++++++++++++++++++++-
 5 files changed, 491 insertions(+), 4 deletions(-)

diff --git a/include/net/nfc/digital.h b/include/net/nfc/digital.h
index aabd89400d23..36acecd5f06c 100644
--- a/include/net/nfc/digital.h
+++ b/include/net/nfc/digital.h
@@ -193,6 +193,9 @@ struct nfc_digital_dev {
 	u8 curr_protocol;
 	u8 curr_rf_tech;
 	u8 curr_nfc_dep_pni;
+
+	int (*skb_check_crc)(struct sk_buff *skb);
+	void (*skb_add_crc)(struct sk_buff *skb);
 };
 
 struct nfc_digital_dev *nfc_digital_allocate_device(struct nfc_digital_ops *ops,
diff --git a/net/nfc/Kconfig b/net/nfc/Kconfig
index 13e1237e1ea1..4f4d2481325a 100644
--- a/net/nfc/Kconfig
+++ b/net/nfc/Kconfig
@@ -16,6 +16,7 @@ menuconfig NFC
 
 config NFC_DIGITAL
 	depends on NFC
+	select CRC_CCITT
 	tristate "NFC Digital Protocol stack support"
 	default n
 	help
diff --git a/net/nfc/digital.h b/net/nfc/digital.h
index 0a2767098daa..fb5324b792de 100644
--- a/net/nfc/digital.h
+++ b/net/nfc/digital.h
@@ -19,6 +19,8 @@
 #include <net/nfc/nfc.h>
 #include <net/nfc/digital.h>
 
+#include <linux/crc-ccitt.h>
+
 #define PR_DBG(fmt, ...)  pr_debug("%s: " fmt "\n", __func__, ##__VA_ARGS__)
 #define PR_ERR(fmt, ...)  pr_err("%s: " fmt "\n", __func__, ##__VA_ARGS__)
 #define PROTOCOL_ERR(req) pr_err("%s:%d: NFC Digital Protocol error: %s\n", \
@@ -32,6 +34,16 @@
 #define DIGITAL_MAX_HEADER_LEN 7
 #define DIGITAL_CRC_LEN        2
 
+#define DIGITAL_DRV_CAPS_IN_CRC(ddev) \
+	((ddev)->driver_capabilities & NFC_DIGITAL_DRV_CAPS_IN_CRC)
+#define DIGITAL_DRV_CAPS_TG_CRC(ddev) \
+	((ddev)->driver_capabilities & NFC_DIGITAL_DRV_CAPS_TG_CRC)
+
+struct digital_data_exch {
+	data_exchange_cb_t cb;
+	void *cb_context;
+};
+
 struct sk_buff *digital_skb_alloc(struct nfc_digital_dev *ddev,
 				  unsigned int len);
 
@@ -53,4 +65,50 @@ void digital_poll_next_tech(struct nfc_digital_dev *ddev);
 
 int digital_in_send_sens_req(struct nfc_digital_dev *ddev, u8 rf_tech);
 
+int digital_target_found(struct nfc_digital_dev *ddev,
+			 struct nfc_target *target, u8 protocol);
+
+int digital_in_recv_mifare_res(struct sk_buff *resp);
+
+typedef u16 (*crc_func_t)(u16, const u8 *, size_t);
+
+#define CRC_A_INIT 0x6363
+#define CRC_B_INIT 0xFFFF
+
+void digital_skb_add_crc(struct sk_buff *skb, crc_func_t crc_func, u16 init,
+			 u8 bitwise_inv, u8 msb_first);
+
+static inline void digital_skb_add_crc_a(struct sk_buff *skb)
+{
+	digital_skb_add_crc(skb, crc_ccitt, CRC_A_INIT, 0, 0);
+}
+
+static inline void digital_skb_add_crc_b(struct sk_buff *skb)
+{
+	digital_skb_add_crc(skb, crc_ccitt, CRC_B_INIT, 1, 0);
+}
+
+static inline void digital_skb_add_crc_none(struct sk_buff *skb)
+{
+	return;
+}
+
+int digital_skb_check_crc(struct sk_buff *skb, crc_func_t crc_func,
+			  u16 crc_init, u8 bitwise_inv, u8 msb_first);
+
+static inline int digital_skb_check_crc_a(struct sk_buff *skb)
+{
+	return digital_skb_check_crc(skb, crc_ccitt, CRC_A_INIT, 0, 0);
+}
+
+static inline int digital_skb_check_crc_b(struct sk_buff *skb)
+{
+	return digital_skb_check_crc(skb, crc_ccitt, CRC_B_INIT, 1, 0);
+}
+
+static inline int digital_skb_check_crc_none(struct sk_buff *skb)
+{
+	return 0;
+}
+
 #endif /* __DIGITAL_H */
diff --git a/net/nfc/digital_core.c b/net/nfc/digital_core.c
index 13abd293ca37..4b3ceb45834b 100644
--- a/net/nfc/digital_core.c
+++ b/net/nfc/digital_core.c
@@ -47,6 +47,51 @@ struct sk_buff *digital_skb_alloc(struct nfc_digital_dev *ddev,
 	return skb;
 }
 
+void digital_skb_add_crc(struct sk_buff *skb, crc_func_t crc_func, u16 init,
+			 u8 bitwise_inv, u8 msb_first)
+{
+	u16 crc;
+
+	crc = crc_func(init, skb->data, skb->len);
+
+	if (bitwise_inv)
+		crc = ~crc;
+
+	if (msb_first)
+		crc = __fswab16(crc);
+
+	*skb_put(skb, 1) = crc & 0xFF;
+	*skb_put(skb, 1) = (crc >> 8) & 0xFF;
+}
+
+int digital_skb_check_crc(struct sk_buff *skb, crc_func_t crc_func,
+			  u16 crc_init, u8 bitwise_inv, u8 msb_first)
+{
+	int rc;
+	u16 crc;
+
+	if (skb->len <= 2)
+		return -EIO;
+
+	crc = crc_func(crc_init, skb->data, skb->len - 2);
+
+	if (bitwise_inv)
+		crc = ~crc;
+
+	if (msb_first)
+		crc = __swab16(crc);
+
+	rc = (skb->data[skb->len - 2] - (crc & 0xFF)) +
+	     (skb->data[skb->len - 1] - ((crc >> 8) & 0xFF));
+
+	if (rc)
+		return -EIO;
+
+	skb_trim(skb, skb->len - 2);
+
+	return 0;
+}
+
 static inline void digital_switch_rf(struct nfc_digital_dev *ddev, bool on)
 {
 	ddev->ops->switch_rf(ddev, on);
@@ -183,6 +228,62 @@ int digital_in_configure_hw(struct nfc_digital_dev *ddev, int type, int param)
 	return rc;
 }
 
+int digital_target_found(struct nfc_digital_dev *ddev,
+			 struct nfc_target *target, u8 protocol)
+{
+	int rc;
+	u8 framing;
+	u8 rf_tech;
+	int (*check_crc)(struct sk_buff *skb);
+	void (*add_crc)(struct sk_buff *skb);
+
+	rf_tech = ddev->poll_techs[ddev->poll_tech_index].rf_tech;
+
+	switch (protocol) {
+	case NFC_PROTO_JEWEL:
+		framing = NFC_DIGITAL_FRAMING_NFCA_T1T;
+		check_crc = digital_skb_check_crc_b;
+		add_crc = digital_skb_add_crc_b;
+		break;
+
+	case NFC_PROTO_MIFARE:
+		framing = NFC_DIGITAL_FRAMING_NFCA_T2T;
+		check_crc = digital_skb_check_crc_a;
+		add_crc = digital_skb_add_crc_a;
+		break;
+
+	default:
+		PR_ERR("Invalid protocol %d", protocol);
+		return -EINVAL;
+	}
+
+	PR_DBG("rf_tech=%d, protocol=%d", rf_tech, protocol);
+
+	ddev->curr_rf_tech = rf_tech;
+	ddev->curr_protocol = protocol;
+
+	if (DIGITAL_DRV_CAPS_IN_CRC(ddev)) {
+		ddev->skb_add_crc = digital_skb_add_crc_none;
+		ddev->skb_check_crc = digital_skb_check_crc_none;
+	} else {
+		ddev->skb_add_crc = add_crc;
+		ddev->skb_check_crc = check_crc;
+	}
+
+	rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING, framing);
+	if (rc)
+		return rc;
+
+	target->supported_protocols = (1 << protocol);
+	rc = nfc_targets_found(ddev->nfc_dev, target, 1);
+	if (rc)
+		return rc;
+
+	ddev->poll_tech_count = 0;
+
+	return 0;
+}
+
 void digital_poll_next_tech(struct nfc_digital_dev *ddev)
 {
 	digital_switch_rf(ddev, 0);
@@ -363,11 +464,53 @@ static int digital_tg_send(struct nfc_dev *dev, struct sk_buff *skb)
 	return -EOPNOTSUPP;
 }
 
+static void digital_in_send_complete(struct nfc_digital_dev *ddev, void *arg,
+				     struct sk_buff *resp)
+{
+	struct digital_data_exch *data_exch = arg;
+	int rc;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		goto done;
+	}
+
+	if (ddev->curr_protocol == NFC_PROTO_MIFARE)
+		rc = digital_in_recv_mifare_res(resp);
+	else
+		rc = ddev->skb_check_crc(resp);
+
+	if (rc) {
+		kfree_skb(resp);
+		resp = NULL;
+	}
+
+done:
+	data_exch->cb(data_exch->cb_context, resp, rc);
+
+	kfree(data_exch);
+}
+
 static int digital_in_send(struct nfc_dev *nfc_dev, struct nfc_target *target,
 			   struct sk_buff *skb, data_exchange_cb_t cb,
 			   void *cb_context)
 {
-	return -EOPNOTSUPP;
+	struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
+	struct digital_data_exch *data_exch;
+
+	data_exch = kzalloc(sizeof(struct digital_data_exch), GFP_KERNEL);
+	if (!data_exch) {
+		PR_ERR("Failed to allocate data_exch struct");
+		return -ENOMEM;
+	}
+
+	data_exch->cb = cb;
+	data_exch->cb_context = cb_context;
+
+	ddev->skb_add_crc(skb);
+
+	return digital_in_send_cmd(ddev, skb, 500, digital_in_send_complete,
+				   data_exch);
 }
 
 static struct nfc_ops digital_nfc_ops = {
diff --git a/net/nfc/digital_technology.c b/net/nfc/digital_technology.c
index 084b0fba5f4d..0cad38001c5f 100644
--- a/net/nfc/digital_technology.c
+++ b/net/nfc/digital_technology.c
@@ -26,13 +26,269 @@
 #define DIGITAL_SDD_RES_CT  0x88
 #define DIGITAL_SDD_RES_LEN 5
 
+#define DIGITAL_SEL_RES_NFCID1_COMPLETE(sel_res) (!((sel_res) & 0x04))
+#define DIGITAL_SEL_RES_IS_T2T(sel_res) (!((sel_res) & 0x60))
+
+#define DIGITAL_SENS_RES_IS_T1T(sens_res) (((sens_res) & 0x000C) == 0x000C)
+#define DIGITAL_SENS_RES_IS_VALID(sens_res) \
+	((!((sens_res) & 0x1F00) && (((sens_res) & 0x000C) == 0x000C)) || \
+	(((sens_res) & 0x1F00) && ((sens_res) & 0x000C) != 0x000C))
+
+#define DIGITAL_MIFARE_READ_RES_LEN 16
+#define DIGITAL_MIFARE_ACK_RES	0x0A
+
+struct digital_sdd_res {
+	u8 nfcid1[4];
+	u8 bcc;
+} __packed;
+
+struct digital_sel_req {
+	u8 sel_cmd;
+	u8 b2;
+	u8 nfcid1[4];
+	u8 bcc;
+} __packed;
+
+static int digital_in_send_sdd_req(struct nfc_digital_dev *ddev,
+				   struct nfc_target *target);
+
+static void digital_in_recv_sel_res(struct nfc_digital_dev *ddev, void *arg,
+				    struct sk_buff *resp)
+{
+	struct nfc_target *target = arg;
+	int rc;
+	u8 sel_res;
+	u8 nfc_proto;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	if (!DIGITAL_DRV_CAPS_IN_CRC(ddev)) {
+		rc = digital_skb_check_crc_a(resp);
+		if (rc) {
+			PROTOCOL_ERR("4.4.1.3");
+			goto exit;
+		}
+	}
+
+	if (!resp->len) {
+		rc = -EIO;
+		goto exit;
+	}
+
+	sel_res = resp->data[0];
+
+	if (!DIGITAL_SEL_RES_NFCID1_COMPLETE(sel_res)) {
+		rc = digital_in_send_sdd_req(ddev, target);
+		if (rc)
+			goto exit;
+
+		goto exit_free_skb;
+	}
+
+	if (DIGITAL_SEL_RES_IS_T2T(sel_res)) {
+		nfc_proto = NFC_PROTO_MIFARE;
+	} else {
+		rc = -EOPNOTSUPP;
+		goto exit;
+	}
+
+	target->sel_res = sel_res;
+
+	rc = digital_target_found(ddev, target, nfc_proto);
+
+exit:
+	kfree(target);
+
+exit_free_skb:
+	dev_kfree_skb(resp);
+
+	if (rc)
+		digital_poll_next_tech(ddev);
+}
+
+static int digital_in_send_sel_req(struct nfc_digital_dev *ddev,
+				   struct nfc_target *target,
+				   struct digital_sdd_res *sdd_res)
+{
+	struct sk_buff *skb;
+	struct digital_sel_req *sel_req;
+	u8 sel_cmd;
+	int rc;
+
+	skb = digital_skb_alloc(ddev, sizeof(struct digital_sel_req));
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, sizeof(struct digital_sel_req));
+	sel_req = (struct digital_sel_req *)skb->data;
+
+	if (target->nfcid1_len <= 4)
+		sel_cmd = DIGITAL_CMD_SEL_REQ_CL1;
+	else if (target->nfcid1_len < 10)
+		sel_cmd = DIGITAL_CMD_SEL_REQ_CL2;
+	else
+		sel_cmd = DIGITAL_CMD_SEL_REQ_CL3;
+
+	sel_req->sel_cmd = sel_cmd;
+	sel_req->b2 = 0x70;
+	memcpy(sel_req->nfcid1, sdd_res->nfcid1, 4);
+	sel_req->bcc = sdd_res->bcc;
+
+	if (DIGITAL_DRV_CAPS_IN_CRC(ddev)) {
+		rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,
+				NFC_DIGITAL_FRAMING_NFCA_STANDARD_WITH_CRC_A);
+		if (rc)
+			goto exit;
+	} else {
+		digital_skb_add_crc_a(skb);
+	}
+
+	rc = digital_in_send_cmd(ddev, skb, 30, digital_in_recv_sel_res,
+				 target);
+exit:
+	if (rc)
+		kfree_skb(skb);
+
+	return rc;
+}
+
+static void digital_in_recv_sdd_res(struct nfc_digital_dev *ddev, void *arg,
+				    struct sk_buff *resp)
+{
+	struct nfc_target *target = arg;
+	struct digital_sdd_res *sdd_res;
+	int rc;
+	u8 offset, size;
+	u8 i, bcc;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	if (resp->len < DIGITAL_SDD_RES_LEN) {
+		PROTOCOL_ERR("4.7.2.8");
+		rc = -EINVAL;
+		goto exit;
+	}
+
+	sdd_res = (struct digital_sdd_res *)resp->data;
+
+	for (i = 0, bcc = 0; i < 4; i++)
+		bcc ^= sdd_res->nfcid1[i];
+
+	if (bcc != sdd_res->bcc) {
+		PROTOCOL_ERR("4.7.2.6");
+		rc = -EINVAL;
+		goto exit;
+	}
+
+	if (sdd_res->nfcid1[0] == DIGITAL_SDD_RES_CT) {
+		offset = 1;
+		size = 3;
+	} else {
+		offset = 0;
+		size = 4;
+	}
+
+	memcpy(target->nfcid1 + target->nfcid1_len, sdd_res->nfcid1 + offset,
+	       size);
+	target->nfcid1_len += size;
+
+	rc = digital_in_send_sel_req(ddev, target, sdd_res);
+
+exit:
+	dev_kfree_skb(resp);
+
+	if (rc) {
+		kfree(target);
+		digital_poll_next_tech(ddev);
+	}
+}
+
+static int digital_in_send_sdd_req(struct nfc_digital_dev *ddev,
+				   struct nfc_target *target)
+{
+	int rc;
+	struct sk_buff *skb;
+	u8 sel_cmd;
+
+	rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,
+				     NFC_DIGITAL_FRAMING_NFCA_STANDARD);
+	if (rc)
+		return rc;
+
+	skb = digital_skb_alloc(ddev, 2);
+	if (!skb) {
+		PR_ERR("alloc_skb failed");
+		return -ENOMEM;
+	}
+
+	if (target->nfcid1_len == 0)
+		sel_cmd = DIGITAL_CMD_SEL_REQ_CL1;
+	else if (target->nfcid1_len == 3)
+		sel_cmd = DIGITAL_CMD_SEL_REQ_CL2;
+	else
+		sel_cmd = DIGITAL_CMD_SEL_REQ_CL3;
+
+	*skb_put(skb, sizeof(u8)) = sel_cmd;
+	*skb_put(skb, sizeof(u8)) = DIGITAL_SDD_REQ_SEL_PAR;
+
+	return digital_in_send_cmd(ddev, skb, 30, digital_in_recv_sdd_res,
+				   target);
+}
+
 static void digital_in_recv_sens_res(struct nfc_digital_dev *ddev, void *arg,
 				     struct sk_buff *resp)
 {
-	if (!IS_ERR(resp))
-		dev_kfree_skb(resp);
+	struct nfc_target *target = NULL;
+	u16 sens_res;
+	int rc;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	if (resp->len < sizeof(u16)) {
+		rc = -EIO;
+		goto exit;
+	}
+
+	target = kzalloc(sizeof(struct nfc_target), GFP_KERNEL);
+	if (!target) {
+		rc = -ENOMEM;
+		goto exit;
+	}
+
+	memcpy(&target->sens_res, resp->data, sizeof(u16));
 
-	digital_poll_next_tech(ddev);
+	sens_res = be16_to_cpu(target->sens_res);
+
+	if (!DIGITAL_SENS_RES_IS_VALID(sens_res)) {
+		PROTOCOL_ERR("4.6.3.3");
+		rc = -EINVAL;
+		goto exit;
+	}
+
+	if (DIGITAL_SENS_RES_IS_T1T(sens_res))
+		rc = digital_target_found(ddev, target, NFC_PROTO_JEWEL);
+	else
+		rc = digital_in_send_sdd_req(ddev, target);
+
+exit:
+	dev_kfree_skb(resp);
+
+	if (rc) {
+		kfree(target);
+		digital_poll_next_tech(ddev);
+	}
 }
 
 int digital_in_send_sens_req(struct nfc_digital_dev *ddev, u8 rf_tech)
@@ -62,3 +318,29 @@ int digital_in_send_sens_req(struct nfc_digital_dev *ddev, u8 rf_tech)
 
 	return rc;
 }
+
+int digital_in_recv_mifare_res(struct sk_buff *resp)
+{
+	/* Successful READ command response is 16 data bytes + 2 CRC bytes long.
+	 * Since the driver can't differentiate a ACK/NACK response from a valid
+	 * READ response, the CRC calculation must be handled at digital level
+	 * even if the driver supports it for this technology.
+	 */
+	if (resp->len == DIGITAL_MIFARE_READ_RES_LEN + DIGITAL_CRC_LEN) {
+		if (digital_skb_check_crc_a(resp)) {
+			PROTOCOL_ERR("9.4.1.2");
+			return -EIO;
+		}
+
+		return 0;
+	}
+
+	/* ACK response (i.e. successful WRITE). */
+	if (resp->len == 1 && resp->data[0] == DIGITAL_MIFARE_ACK_RES) {
+		resp->data[0] = 0;
+		return 0;
+	}
+
+	/* NACK and any other responses are treated as error. */
+	return -EIO;
+}
-- 
cgit 


From 8c0695e4998dd268ff2a05951961247b7e015651 Mon Sep 17 00:00:00 2001
From: Thierry Escande <thierry.escande@linux.intel.com>
Date: Thu, 19 Sep 2013 17:55:28 +0200
Subject: NFC Digital: Add NFC-F technology support

This adds polling support for NFC-F technology at 212 kbits/s and 424
kbits/s. A user space application like neard can send type 3 tag
commands through the NFC core.

Process flow for NFC-F detection is as follow:

1 - The digital stack sends the SENSF_REQ command to the NFC device.
2 - A peer device replies with a SENSF_RES response.
3   - The digital stack notifies the NFC core of the presence of a
      target in the operation field and passes the target NFCID2.

This also adds support for CRC calculation of type CRC-F. The CRC
calculation is handled by the digital stack if the NFC device doesn't
support it.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 net/nfc/Kconfig              |   1 +
 net/nfc/digital.h            |  13 +++++
 net/nfc/digital_core.c       |  18 +++++++
 net/nfc/digital_technology.c | 121 +++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 153 insertions(+)

diff --git a/net/nfc/Kconfig b/net/nfc/Kconfig
index 4f4d2481325a..6e0fa0cce198 100644
--- a/net/nfc/Kconfig
+++ b/net/nfc/Kconfig
@@ -17,6 +17,7 @@ menuconfig NFC
 config NFC_DIGITAL
 	depends on NFC
 	select CRC_CCITT
+	select CRC_ITU_T
 	tristate "NFC Digital Protocol stack support"
 	default n
 	help
diff --git a/net/nfc/digital.h b/net/nfc/digital.h
index fb5324b792de..85bc74c988f8 100644
--- a/net/nfc/digital.h
+++ b/net/nfc/digital.h
@@ -20,6 +20,7 @@
 #include <net/nfc/digital.h>
 
 #include <linux/crc-ccitt.h>
+#include <linux/crc-itu-t.h>
 
 #define PR_DBG(fmt, ...)  pr_debug("%s: " fmt "\n", __func__, ##__VA_ARGS__)
 #define PR_ERR(fmt, ...)  pr_err("%s: " fmt "\n", __func__, ##__VA_ARGS__)
@@ -64,6 +65,7 @@ static inline int digital_in_send_cmd(struct nfc_digital_dev *ddev,
 void digital_poll_next_tech(struct nfc_digital_dev *ddev);
 
 int digital_in_send_sens_req(struct nfc_digital_dev *ddev, u8 rf_tech);
+int digital_in_send_sensf_req(struct nfc_digital_dev *ddev, u8 rf_tech);
 
 int digital_target_found(struct nfc_digital_dev *ddev,
 			 struct nfc_target *target, u8 protocol);
@@ -74,6 +76,7 @@ typedef u16 (*crc_func_t)(u16, const u8 *, size_t);
 
 #define CRC_A_INIT 0x6363
 #define CRC_B_INIT 0xFFFF
+#define CRC_F_INIT 0x0000
 
 void digital_skb_add_crc(struct sk_buff *skb, crc_func_t crc_func, u16 init,
 			 u8 bitwise_inv, u8 msb_first);
@@ -88,6 +91,11 @@ static inline void digital_skb_add_crc_b(struct sk_buff *skb)
 	digital_skb_add_crc(skb, crc_ccitt, CRC_B_INIT, 1, 0);
 }
 
+static inline void digital_skb_add_crc_f(struct sk_buff *skb)
+{
+	digital_skb_add_crc(skb, crc_itu_t, CRC_F_INIT, 0, 1);
+}
+
 static inline void digital_skb_add_crc_none(struct sk_buff *skb)
 {
 	return;
@@ -106,6 +114,11 @@ static inline int digital_skb_check_crc_b(struct sk_buff *skb)
 	return digital_skb_check_crc(skb, crc_ccitt, CRC_B_INIT, 1, 0);
 }
 
+static inline int digital_skb_check_crc_f(struct sk_buff *skb)
+{
+	return digital_skb_check_crc(skb, crc_itu_t, CRC_F_INIT, 0, 1);
+}
+
 static inline int digital_skb_check_crc_none(struct sk_buff *skb)
 {
 	return 0;
diff --git a/net/nfc/digital_core.c b/net/nfc/digital_core.c
index 4b3ceb45834b..25e5bcb946e0 100644
--- a/net/nfc/digital_core.c
+++ b/net/nfc/digital_core.c
@@ -20,6 +20,8 @@
 #define DIGITAL_PROTO_NFCA_RF_TECH \
 	(NFC_PROTO_JEWEL_MASK | NFC_PROTO_MIFARE_MASK)
 
+#define DIGITAL_PROTO_NFCF_RF_TECH (NFC_PROTO_FELICA_MASK)
+
 struct digital_cmd {
 	struct list_head queue;
 
@@ -252,6 +254,12 @@ int digital_target_found(struct nfc_digital_dev *ddev,
 		add_crc = digital_skb_add_crc_a;
 		break;
 
+	case NFC_PROTO_FELICA:
+		framing = NFC_DIGITAL_FRAMING_NFCF_T3T;
+		check_crc = digital_skb_check_crc_f;
+		add_crc = digital_skb_add_crc_f;
+		break;
+
 	default:
 		PR_ERR("Invalid protocol %d", protocol);
 		return -EINVAL;
@@ -383,6 +391,14 @@ static int digital_start_poll(struct nfc_dev *nfc_dev, __u32 im_protocols,
 		digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_106A,
 				      digital_in_send_sens_req);
 
+	if (im_protocols & DIGITAL_PROTO_NFCF_RF_TECH) {
+		digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_212F,
+				      digital_in_send_sensf_req);
+
+		digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_424F,
+				      digital_in_send_sensf_req);
+	}
+
 	if (!ddev->poll_tech_count) {
 		PR_ERR("Unsupported protocols: im=0x%x, tm=0x%x",
 		       matching_im_protocols, matching_tm_protocols);
@@ -560,6 +576,8 @@ struct nfc_digital_dev *nfc_digital_allocate_device(struct nfc_digital_ops *ops,
 		ddev->protocols |= NFC_PROTO_JEWEL_MASK;
 	if (supported_protocols & NFC_PROTO_MIFARE_MASK)
 		ddev->protocols |= NFC_PROTO_MIFARE_MASK;
+	if (supported_protocols & NFC_PROTO_FELICA_MASK)
+		ddev->protocols |= NFC_PROTO_FELICA_MASK;
 
 	ddev->tx_headroom = tx_headroom + DIGITAL_MAX_HEADER_LEN;
 	ddev->tx_tailroom = tx_tailroom + DIGITAL_CRC_LEN;
diff --git a/net/nfc/digital_technology.c b/net/nfc/digital_technology.c
index 0cad38001c5f..bfe5ae17909e 100644
--- a/net/nfc/digital_technology.c
+++ b/net/nfc/digital_technology.c
@@ -37,6 +37,17 @@
 #define DIGITAL_MIFARE_READ_RES_LEN 16
 #define DIGITAL_MIFARE_ACK_RES	0x0A
 
+#define DIGITAL_CMD_SENSF_REQ	0x00
+#define DIGITAL_CMD_SENSF_RES	0x01
+
+#define DIGITAL_SENSF_RES_MIN_LENGTH 17
+#define DIGITAL_SENSF_RES_RD_AP_B1   0x00
+#define DIGITAL_SENSF_RES_RD_AP_B2   0x8F
+
+#define DIGITAL_SENSF_REQ_RC_NONE 0
+#define DIGITAL_SENSF_REQ_RC_SC   1
+#define DIGITAL_SENSF_REQ_RC_AP   2
+
 struct digital_sdd_res {
 	u8 nfcid1[4];
 	u8 bcc;
@@ -49,6 +60,25 @@ struct digital_sel_req {
 	u8 bcc;
 } __packed;
 
+struct digital_sensf_req {
+	u8 cmd;
+	u8 sc1;
+	u8 sc2;
+	u8 rc;
+	u8 tsn;
+} __packed;
+
+struct digital_sensf_res {
+	u8 cmd;
+	u8 nfcid2[8];
+	u8 pad0[2];
+	u8 pad1[3];
+	u8 mrti_check;
+	u8 mrti_update;
+	u8 pad2;
+	u8 rd[2];
+} __packed;
+
 static int digital_in_send_sdd_req(struct nfc_digital_dev *ddev,
 				   struct nfc_target *target);
 
@@ -344,3 +374,94 @@ int digital_in_recv_mifare_res(struct sk_buff *resp)
 	/* NACK and any other responses are treated as error. */
 	return -EIO;
 }
+
+static void digital_in_recv_sensf_res(struct nfc_digital_dev *ddev, void *arg,
+				   struct sk_buff *resp)
+{
+	int rc;
+	struct nfc_target target;
+	struct digital_sensf_res *sensf_res;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	if (resp->len < DIGITAL_SENSF_RES_MIN_LENGTH) {
+		rc = -EIO;
+		goto exit;
+	}
+
+	if (!DIGITAL_DRV_CAPS_IN_CRC(ddev)) {
+		rc = digital_skb_check_crc_f(resp);
+		if (rc) {
+			PROTOCOL_ERR("6.4.1.8");
+			goto exit;
+		}
+	}
+
+	skb_pull(resp, 1);
+
+	memset(&target, 0, sizeof(struct nfc_target));
+
+	sensf_res = (struct digital_sensf_res *)resp->data;
+
+	memcpy(target.sensf_res, sensf_res, resp->len);
+	target.sensf_res_len = resp->len;
+
+	memcpy(target.nfcid2, sensf_res->nfcid2, NFC_NFCID2_MAXSIZE);
+	target.nfcid2_len = NFC_NFCID2_MAXSIZE;
+
+	rc = digital_target_found(ddev, &target, NFC_PROTO_FELICA);
+
+exit:
+	dev_kfree_skb(resp);
+
+	if (rc)
+		digital_poll_next_tech(ddev);
+}
+
+int digital_in_send_sensf_req(struct nfc_digital_dev *ddev, u8 rf_tech)
+{
+	struct digital_sensf_req *sensf_req;
+	struct sk_buff *skb;
+	int rc;
+	u8 size;
+
+	rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH, rf_tech);
+	if (rc)
+		return rc;
+
+	rc = digital_in_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,
+				     NFC_DIGITAL_FRAMING_NFCF);
+	if (rc)
+		return rc;
+
+	size = sizeof(struct digital_sensf_req);
+
+	skb = digital_skb_alloc(ddev, size);
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, size);
+
+	sensf_req = (struct digital_sensf_req *)skb->data;
+	sensf_req->cmd = DIGITAL_CMD_SENSF_REQ;
+	sensf_req->sc1 = 0xFF;
+	sensf_req->sc2 = 0xFF;
+	sensf_req->rc = 0;
+	sensf_req->tsn = 0;
+
+	*skb_push(skb, 1) = size + 1;
+
+	if (!DIGITAL_DRV_CAPS_IN_CRC(ddev))
+		digital_skb_add_crc_f(skb);
+
+	rc = digital_in_send_cmd(ddev, skb, 30, digital_in_recv_sensf_res,
+				 NULL);
+	if (rc)
+		kfree_skb(skb);
+
+	return rc;
+}
-- 
cgit 


From 7d0911c02fa2a448a28d7844d2a0c439ff8397b1 Mon Sep 17 00:00:00 2001
From: Thierry Escande <thierry.escande@linux.intel.com>
Date: Thu, 19 Sep 2013 17:55:29 +0200
Subject: NFC Digital: Add initiator NFC-DEP support

This adds support for NFC-DEP protocol in initiator mode for NFC-A and
NFC-F technologies.

When a target is detected, the process flow is as follow:

For NFC-A technology:
1 - The digital stack receives a SEL_RES as the reply of the SEL_REQ
    command.
2   - If b7 of SEL_RES is set, the peer device is configure for NFC-DEP
      protocol. NFC core is notified through nfc_targets_found().
      Execution continues at step 4.
3   - Otherwise, it's a tag and the NFC core is notified. Detection
      ends.
4 - The digital stacks sends an ATR_REQ command containing a randomly
    generated NFCID3 and the general bytes obtained from the LLCP layer
    of NFC core.

For NFC-F technology:
1 - The digital stack receives a SENSF_RES as the reply of the
    SENSF_REQ command.
2   - If B1 and B2 of NFCID2 are 0x01 and 0xFE respectively, the peer
      device is configured for NFC-DEP protocol. NFC core is notified
      through nfc_targets_found(). Execution continues at step 4.
3   - Otherwise it's a type 3 tag. NFC core is notified. Detection
      ends.
4 - The digital stacks sends an ATR_REQ command containing the NFC-F
    NFCID2 as NFCID3 and the general bytes obtained from the LLCP layer
    of NFC core.

For both technologies:
5 - The digital stacks receives the ATR_RES response containing the
    NFCID3 and the general bytes of the peer device.
6 - The digital stack notifies NFC core that the DEP link is up through
    nfc_dep_link_up().
7 - The NFC core performs data exchange through tm_transceive().
8 - The digital stack sends a DEP_REQ command containing an I PDU with
    the data from NFC core.
9 - The digital stack receives a DEP_RES command
10  - If the DEP_RES response contains a supervisor PDU with timeout
      extension request (RTOX) the digital stack sends a DEP_REQ
      command containing a supervisor PDU acknowledging the RTOX
      request. The execution continues at step 9.
11  - If the DEP_RES response contains an I PDU, the response data is
      passed back to NFC core through the response callback. The
      execution continues at step 8.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 net/nfc/Makefile             |   2 +-
 net/nfc/digital.h            |  14 ++
 net/nfc/digital_core.c       |  32 +++-
 net/nfc/digital_dep.c        | 381 +++++++++++++++++++++++++++++++++++++++++++
 net/nfc/digital_technology.c |  12 +-
 5 files changed, 435 insertions(+), 6 deletions(-)
 create mode 100644 net/nfc/digital_dep.c

diff --git a/net/nfc/Makefile b/net/nfc/Makefile
index 2db39713a907..2555ff8e7219 100644
--- a/net/nfc/Makefile
+++ b/net/nfc/Makefile
@@ -10,4 +10,4 @@ obj-$(CONFIG_NFC_DIGITAL) += nfc_digital.o
 nfc-objs := core.o netlink.o af_nfc.o rawsock.o llcp_core.o llcp_commands.o \
 		llcp_sock.o
 
-nfc_digital-objs := digital_core.o digital_technology.o
+nfc_digital-objs := digital_core.o digital_technology.o digital_dep.o
diff --git a/net/nfc/digital.h b/net/nfc/digital.h
index 85bc74c988f8..5254a872522b 100644
--- a/net/nfc/digital.h
+++ b/net/nfc/digital.h
@@ -35,6 +35,13 @@
 #define DIGITAL_MAX_HEADER_LEN 7
 #define DIGITAL_CRC_LEN        2
 
+#define DIGITAL_SENSF_NFCID2_NFC_DEP_B1 0x01
+#define DIGITAL_SENSF_NFCID2_NFC_DEP_B2 0xFE
+
+#define DIGITAL_SENS_RES_NFC_DEP 0x0100
+#define DIGITAL_SEL_RES_NFC_DEP  0x40
+#define DIGITAL_SENSF_FELICA_SC  0xFFFF
+
 #define DIGITAL_DRV_CAPS_IN_CRC(ddev) \
 	((ddev)->driver_capabilities & NFC_DIGITAL_DRV_CAPS_IN_CRC)
 #define DIGITAL_DRV_CAPS_TG_CRC(ddev) \
@@ -72,6 +79,13 @@ int digital_target_found(struct nfc_digital_dev *ddev,
 
 int digital_in_recv_mifare_res(struct sk_buff *resp);
 
+int digital_in_send_atr_req(struct nfc_digital_dev *ddev,
+			    struct nfc_target *target, __u8 comm_mode, __u8 *gb,
+			    size_t gb_len);
+int digital_in_send_dep_req(struct nfc_digital_dev *ddev,
+			    struct nfc_target *target, struct sk_buff *skb,
+			    struct digital_data_exch *data_exch);
+
 typedef u16 (*crc_func_t)(u16, const u8 *, size_t);
 
 #define CRC_A_INIT 0x6363
diff --git a/net/nfc/digital_core.c b/net/nfc/digital_core.c
index 25e5bcb946e0..dccfcccf6998 100644
--- a/net/nfc/digital_core.c
+++ b/net/nfc/digital_core.c
@@ -18,9 +18,10 @@
 #include "digital.h"
 
 #define DIGITAL_PROTO_NFCA_RF_TECH \
-	(NFC_PROTO_JEWEL_MASK | NFC_PROTO_MIFARE_MASK)
+	(NFC_PROTO_JEWEL_MASK | NFC_PROTO_MIFARE_MASK | NFC_PROTO_NFC_DEP_MASK)
 
-#define DIGITAL_PROTO_NFCF_RF_TECH (NFC_PROTO_FELICA_MASK)
+#define DIGITAL_PROTO_NFCF_RF_TECH \
+	(NFC_PROTO_FELICA_MASK | NFC_PROTO_NFC_DEP_MASK)
 
 struct digital_cmd {
 	struct list_head queue;
@@ -260,6 +261,18 @@ int digital_target_found(struct nfc_digital_dev *ddev,
 		add_crc = digital_skb_add_crc_f;
 		break;
 
+	case NFC_PROTO_NFC_DEP:
+		if (rf_tech == NFC_DIGITAL_RF_TECH_106A) {
+			framing = NFC_DIGITAL_FRAMING_NFCA_NFC_DEP;
+			check_crc = digital_skb_check_crc_a;
+			add_crc = digital_skb_add_crc_a;
+		} else {
+			framing = NFC_DIGITAL_FRAMING_NFCF_NFC_DEP;
+			check_crc = digital_skb_check_crc_f;
+			add_crc = digital_skb_add_crc_f;
+		}
+		break;
+
 	default:
 		PR_ERR("Invalid protocol %d", protocol);
 		return -EINVAL;
@@ -453,12 +466,18 @@ static int digital_dep_link_up(struct nfc_dev *nfc_dev,
 			       struct nfc_target *target,
 			       __u8 comm_mode, __u8 *gb, size_t gb_len)
 {
-	return -EOPNOTSUPP;
+	struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
+
+	return digital_in_send_atr_req(ddev, target, comm_mode, gb, gb_len);
 }
 
 static int digital_dep_link_down(struct nfc_dev *nfc_dev)
 {
-	return -EOPNOTSUPP;
+	struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
+
+	ddev->curr_protocol = 0;
+
+	return 0;
 }
 
 static int digital_activate_target(struct nfc_dev *nfc_dev,
@@ -523,6 +542,9 @@ static int digital_in_send(struct nfc_dev *nfc_dev, struct nfc_target *target,
 	data_exch->cb = cb;
 	data_exch->cb_context = cb_context;
 
+	if (ddev->curr_protocol == NFC_PROTO_NFC_DEP)
+		return digital_in_send_dep_req(ddev, target, skb, data_exch);
+
 	ddev->skb_add_crc(skb);
 
 	return digital_in_send_cmd(ddev, skb, 500, digital_in_send_complete,
@@ -578,6 +600,8 @@ struct nfc_digital_dev *nfc_digital_allocate_device(struct nfc_digital_ops *ops,
 		ddev->protocols |= NFC_PROTO_MIFARE_MASK;
 	if (supported_protocols & NFC_PROTO_FELICA_MASK)
 		ddev->protocols |= NFC_PROTO_FELICA_MASK;
+	if (supported_protocols & NFC_PROTO_NFC_DEP_MASK)
+		ddev->protocols |= NFC_PROTO_NFC_DEP_MASK;
 
 	ddev->tx_headroom = tx_headroom + DIGITAL_MAX_HEADER_LEN;
 	ddev->tx_tailroom = tx_tailroom + DIGITAL_CRC_LEN;
diff --git a/net/nfc/digital_dep.c b/net/nfc/digital_dep.c
new file mode 100644
index 000000000000..be984c4204d2
--- /dev/null
+++ b/net/nfc/digital_dep.c
@@ -0,0 +1,381 @@
+/*
+ * NFC Digital Protocol stack
+ * Copyright (c) 2013, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#include "digital.h"
+
+#define DIGITAL_NFC_DEP_FRAME_DIR_OUT 0xD4
+#define DIGITAL_NFC_DEP_FRAME_DIR_IN  0xD5
+
+#define DIGITAL_NFC_DEP_NFCA_SOD_SB   0xF0
+
+#define DIGITAL_CMD_ATR_REQ 0x00
+#define DIGITAL_CMD_ATR_RES 0x01
+#define DIGITAL_CMD_PSL_REQ 0x04
+#define DIGITAL_CMD_PSL_RES 0x05
+#define DIGITAL_CMD_DEP_REQ 0x06
+#define DIGITAL_CMD_DEP_RES 0x07
+
+#define DIGITAL_ATR_REQ_MIN_SIZE 16
+#define DIGITAL_ATR_REQ_MAX_SIZE 64
+
+#define DIGITAL_NFCID3_LEN ((u8)8)
+#define DIGITAL_LR_BITS_PAYLOAD_SIZE_254B 0x30
+#define DIGITAL_GB_BIT	0x02
+
+#define DIGITAL_NFC_DEP_PFB_TYPE(pfb) ((pfb) & 0xE0)
+
+#define DIGITAL_NFC_DEP_PFB_TIMEOUT_BIT 0x10
+
+#define DIGITAL_NFC_DEP_PFB_IS_TIMEOUT(pfb) \
+				((pfb) & DIGITAL_NFC_DEP_PFB_TIMEOUT_BIT)
+#define DIGITAL_NFC_DEP_MI_BIT_SET(pfb)  ((pfb) & 0x10)
+#define DIGITAL_NFC_DEP_NAD_BIT_SET(pfb) ((pfb) & 0x08)
+#define DIGITAL_NFC_DEP_DID_BIT_SET(pfb) ((pfb) & 0x04)
+#define DIGITAL_NFC_DEP_PFB_PNI(pfb)     ((pfb) & 0x03)
+
+#define DIGITAL_NFC_DEP_PFB_I_PDU          0x00
+#define DIGITAL_NFC_DEP_PFB_ACK_NACK_PDU   0x40
+#define DIGITAL_NFC_DEP_PFB_SUPERVISOR_PDU 0x80
+
+struct digital_atr_req {
+	u8 dir;
+	u8 cmd;
+	u8 nfcid3[10];
+	u8 did;
+	u8 bs;
+	u8 br;
+	u8 pp;
+	u8 gb[0];
+} __packed;
+
+struct digital_atr_res {
+	u8 dir;
+	u8 cmd;
+	u8 nfcid3[10];
+	u8 did;
+	u8 bs;
+	u8 br;
+	u8 to;
+	u8 pp;
+	u8 gb[0];
+} __packed;
+
+struct digital_psl_req {
+	u8 dir;
+	u8 cmd;
+	u8 did;
+	u8 brs;
+	u8 fsl;
+} __packed;
+
+struct digital_psl_res {
+	u8 dir;
+	u8 cmd;
+	u8 did;
+} __packed;
+
+struct digital_dep_req_res {
+	u8 dir;
+	u8 cmd;
+	u8 pfb;
+} __packed;
+
+static void digital_in_recv_dep_res(struct nfc_digital_dev *ddev, void *arg,
+				    struct sk_buff *resp);
+
+static void digital_skb_push_dep_sod(struct nfc_digital_dev *ddev,
+				     struct sk_buff *skb)
+{
+	skb_push(skb, sizeof(u8));
+
+	skb->data[0] = skb->len;
+
+	if (ddev->curr_rf_tech == NFC_DIGITAL_RF_TECH_106A)
+		*skb_push(skb, sizeof(u8)) = DIGITAL_NFC_DEP_NFCA_SOD_SB;
+}
+
+static int digital_skb_pull_dep_sod(struct nfc_digital_dev *ddev,
+				    struct sk_buff *skb)
+{
+	u8 size;
+
+	if (skb->len < 2)
+		return -EIO;
+
+	if (ddev->curr_rf_tech == NFC_DIGITAL_RF_TECH_106A)
+		skb_pull(skb, sizeof(u8));
+
+	size = skb->data[0];
+	if (size != skb->len)
+		return -EIO;
+
+	skb_pull(skb, sizeof(u8));
+
+	return 0;
+}
+
+static void digital_in_recv_atr_res(struct nfc_digital_dev *ddev, void *arg,
+				 struct sk_buff *resp)
+{
+	struct nfc_target *target = arg;
+	struct digital_atr_res *atr_res;
+	u8 gb_len;
+	int rc;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	rc = ddev->skb_check_crc(resp);
+	if (rc) {
+		PROTOCOL_ERR("14.4.1.6");
+		goto exit;
+	}
+
+	rc = digital_skb_pull_dep_sod(ddev, resp);
+	if (rc) {
+		PROTOCOL_ERR("14.4.1.2");
+		goto exit;
+	}
+
+	if (resp->len < sizeof(struct digital_atr_res)) {
+		rc = -EIO;
+		goto exit;
+	}
+
+	gb_len = resp->len - sizeof(struct digital_atr_res);
+
+	atr_res = (struct digital_atr_res *)resp->data;
+
+	rc = nfc_set_remote_general_bytes(ddev->nfc_dev, atr_res->gb, gb_len);
+	if (rc)
+		goto exit;
+
+	rc = nfc_dep_link_is_up(ddev->nfc_dev, target->idx, NFC_COMM_ACTIVE,
+				NFC_RF_INITIATOR);
+
+	ddev->curr_nfc_dep_pni = 0;
+
+exit:
+	dev_kfree_skb(resp);
+
+	if (rc)
+		ddev->curr_protocol = 0;
+}
+
+int digital_in_send_atr_req(struct nfc_digital_dev *ddev,
+			    struct nfc_target *target, __u8 comm_mode, __u8 *gb,
+			    size_t gb_len)
+{
+	struct sk_buff *skb;
+	struct digital_atr_req *atr_req;
+	uint size;
+
+	size = DIGITAL_ATR_REQ_MIN_SIZE + gb_len;
+
+	if (size > DIGITAL_ATR_REQ_MAX_SIZE) {
+		PROTOCOL_ERR("14.6.1.1");
+		return -EINVAL;
+	}
+
+	skb = digital_skb_alloc(ddev, size);
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, sizeof(struct digital_atr_req));
+
+	atr_req = (struct digital_atr_req *)skb->data;
+	memset(atr_req, 0, sizeof(struct digital_atr_req));
+
+	atr_req->dir = DIGITAL_NFC_DEP_FRAME_DIR_OUT;
+	atr_req->cmd = DIGITAL_CMD_ATR_REQ;
+	if (target->nfcid2_len)
+		memcpy(atr_req->nfcid3, target->nfcid2,
+		       max(target->nfcid2_len, DIGITAL_NFCID3_LEN));
+	else
+		get_random_bytes(atr_req->nfcid3, DIGITAL_NFCID3_LEN);
+
+	atr_req->did = 0;
+	atr_req->bs = 0;
+	atr_req->br = 0;
+
+	atr_req->pp = DIGITAL_LR_BITS_PAYLOAD_SIZE_254B;
+
+	if (gb_len) {
+		atr_req->pp |= DIGITAL_GB_BIT;
+		memcpy(skb_put(skb, gb_len), gb, gb_len);
+	}
+
+	digital_skb_push_dep_sod(ddev, skb);
+
+	ddev->skb_add_crc(skb);
+
+	digital_in_send_cmd(ddev, skb, 500, digital_in_recv_atr_res, target);
+
+	return 0;
+}
+
+static int digital_in_send_rtox(struct nfc_digital_dev *ddev,
+				struct digital_data_exch *data_exch, u8 rtox)
+{
+	struct digital_dep_req_res *dep_req;
+	struct sk_buff *skb;
+	int rc;
+
+	skb = digital_skb_alloc(ddev, 1);
+	if (!skb)
+		return -ENOMEM;
+
+	*skb_put(skb, 1) = rtox;
+
+	skb_push(skb, sizeof(struct digital_dep_req_res));
+
+	dep_req = (struct digital_dep_req_res *)skb->data;
+
+	dep_req->dir = DIGITAL_NFC_DEP_FRAME_DIR_OUT;
+	dep_req->cmd = DIGITAL_CMD_DEP_REQ;
+	dep_req->pfb = DIGITAL_NFC_DEP_PFB_SUPERVISOR_PDU |
+		       DIGITAL_NFC_DEP_PFB_TIMEOUT_BIT;
+
+	digital_skb_push_dep_sod(ddev, skb);
+
+	ddev->skb_add_crc(skb);
+
+	rc = digital_in_send_cmd(ddev, skb, 1500, digital_in_recv_dep_res,
+				 data_exch);
+
+	return rc;
+}
+
+static void digital_in_recv_dep_res(struct nfc_digital_dev *ddev, void *arg,
+				    struct sk_buff *resp)
+{
+	struct digital_data_exch *data_exch = arg;
+	struct digital_dep_req_res *dep_res;
+	u8 pfb;
+	uint size;
+	int rc;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	rc = ddev->skb_check_crc(resp);
+	if (rc) {
+		PROTOCOL_ERR("14.4.1.6");
+		goto error;
+	}
+
+	rc = digital_skb_pull_dep_sod(ddev, resp);
+	if (rc) {
+		PROTOCOL_ERR("14.4.1.2");
+		goto exit;
+	}
+
+	dep_res = (struct digital_dep_req_res *)resp->data;
+
+	if (resp->len < sizeof(struct digital_dep_req_res) ||
+	    dep_res->dir != DIGITAL_NFC_DEP_FRAME_DIR_IN ||
+	    dep_res->cmd != DIGITAL_CMD_DEP_RES) {
+		rc = -EIO;
+		goto error;
+	}
+
+	pfb = dep_res->pfb;
+
+	switch (DIGITAL_NFC_DEP_PFB_TYPE(pfb)) {
+	case DIGITAL_NFC_DEP_PFB_I_PDU:
+		if (DIGITAL_NFC_DEP_PFB_PNI(pfb) != ddev->curr_nfc_dep_pni) {
+			PROTOCOL_ERR("14.12.3.3");
+			rc = -EIO;
+			goto error;
+		}
+
+		ddev->curr_nfc_dep_pni =
+			DIGITAL_NFC_DEP_PFB_PNI(ddev->curr_nfc_dep_pni + 1);
+		rc = 0;
+		break;
+
+	case DIGITAL_NFC_DEP_PFB_ACK_NACK_PDU:
+		PR_ERR("Received a ACK/NACK PDU");
+		rc = -EIO;
+		goto error;
+
+	case DIGITAL_NFC_DEP_PFB_SUPERVISOR_PDU:
+		if (!DIGITAL_NFC_DEP_PFB_IS_TIMEOUT(pfb)) {
+			rc = -EINVAL;
+			goto error;
+		}
+
+		rc = digital_in_send_rtox(ddev, data_exch, resp->data[3]);
+		if (rc)
+			goto error;
+
+		kfree_skb(resp);
+		return;
+	}
+
+	if (DIGITAL_NFC_DEP_MI_BIT_SET(pfb)) {
+		PR_ERR("MI bit set. Chained PDU not supported.");
+		rc = -EIO;
+		goto error;
+	}
+
+	size = sizeof(struct digital_dep_req_res);
+
+	if (DIGITAL_NFC_DEP_DID_BIT_SET(pfb))
+		size++;
+
+	if (size > resp->len) {
+		rc = -EIO;
+		goto error;
+	}
+
+	skb_pull(resp, size);
+
+exit:
+	data_exch->cb(data_exch->cb_context, resp, rc);
+
+error:
+	kfree(data_exch);
+
+	if (rc)
+		kfree_skb(resp);
+}
+
+int digital_in_send_dep_req(struct nfc_digital_dev *ddev,
+			    struct nfc_target *target, struct sk_buff *skb,
+			    struct digital_data_exch *data_exch)
+{
+	struct digital_dep_req_res *dep_req;
+
+	skb_push(skb, sizeof(struct digital_dep_req_res));
+
+	dep_req = (struct digital_dep_req_res *)skb->data;
+	dep_req->dir = DIGITAL_NFC_DEP_FRAME_DIR_OUT;
+	dep_req->cmd = DIGITAL_CMD_DEP_REQ;
+	dep_req->pfb = ddev->curr_nfc_dep_pni;
+
+	digital_skb_push_dep_sod(ddev, skb);
+
+	ddev->skb_add_crc(skb);
+
+	return digital_in_send_cmd(ddev, skb, 1500, digital_in_recv_dep_res,
+				   data_exch);
+}
diff --git a/net/nfc/digital_technology.c b/net/nfc/digital_technology.c
index bfe5ae17909e..0c28f600fd1c 100644
--- a/net/nfc/digital_technology.c
+++ b/net/nfc/digital_technology.c
@@ -28,6 +28,7 @@
 
 #define DIGITAL_SEL_RES_NFCID1_COMPLETE(sel_res) (!((sel_res) & 0x04))
 #define DIGITAL_SEL_RES_IS_T2T(sel_res) (!((sel_res) & 0x60))
+#define DIGITAL_SEL_RES_IS_NFC_DEP(sel_res) ((sel_res) & 0x40)
 
 #define DIGITAL_SENS_RES_IS_T1T(sens_res) (((sens_res) & 0x000C) == 0x000C)
 #define DIGITAL_SENS_RES_IS_VALID(sens_res) \
@@ -121,6 +122,8 @@ static void digital_in_recv_sel_res(struct nfc_digital_dev *ddev, void *arg,
 
 	if (DIGITAL_SEL_RES_IS_T2T(sel_res)) {
 		nfc_proto = NFC_PROTO_MIFARE;
+	} else if (DIGITAL_SEL_RES_IS_NFC_DEP(sel_res)) {
+		nfc_proto = NFC_PROTO_NFC_DEP;
 	} else {
 		rc = -EOPNOTSUPP;
 		goto exit;
@@ -379,6 +382,7 @@ static void digital_in_recv_sensf_res(struct nfc_digital_dev *ddev, void *arg,
 				   struct sk_buff *resp)
 {
 	int rc;
+	u8 proto;
 	struct nfc_target target;
 	struct digital_sensf_res *sensf_res;
 
@@ -413,7 +417,13 @@ static void digital_in_recv_sensf_res(struct nfc_digital_dev *ddev, void *arg,
 	memcpy(target.nfcid2, sensf_res->nfcid2, NFC_NFCID2_MAXSIZE);
 	target.nfcid2_len = NFC_NFCID2_MAXSIZE;
 
-	rc = digital_target_found(ddev, &target, NFC_PROTO_FELICA);
+	if (target.nfcid2[0] == DIGITAL_SENSF_NFCID2_NFC_DEP_B1 &&
+	    target.nfcid2[1] == DIGITAL_SENSF_NFCID2_NFC_DEP_B2)
+		proto = NFC_PROTO_NFC_DEP;
+	else
+		proto = NFC_PROTO_FELICA;
+
+	rc = digital_target_found(ddev, &target, proto);
 
 exit:
 	dev_kfree_skb(resp);
-- 
cgit 


From 1c7a4c24fbfd99442cc6e14dc80fcb00f118e8b8 Mon Sep 17 00:00:00 2001
From: Thierry Escande <thierry.escande@linux.intel.com>
Date: Thu, 19 Sep 2013 17:55:30 +0200
Subject: NFC Digital: Add target NFC-DEP support

This adds support for NFC-DEP target mode for NFC-A and NFC-F
technologies.

If the driver provides it, the stack uses an automatic mode for
technology detection and automatic anti-collision. Otherwise the stack
tries to use non-automatic synchronization and listens for SENS_REQ and
SENSF_REQ commands.

The detection, activation, and data exchange procedures work exactly
the same way as in initiator mode, as described in the previous
commits, except that the digital stack waits for commands and sends
responses back to the peer device.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 net/nfc/digital.h            |  39 ++++-
 net/nfc/digital_core.c       |  81 +++++++++-
 net/nfc/digital_dep.c        | 346 +++++++++++++++++++++++++++++++++++++++++++
 net/nfc/digital_technology.c | 296 ++++++++++++++++++++++++++++++++++++
 4 files changed, 755 insertions(+), 7 deletions(-)

diff --git a/net/nfc/digital.h b/net/nfc/digital.h
index 5254a872522b..586075a3feed 100644
--- a/net/nfc/digital.h
+++ b/net/nfc/digital.h
@@ -56,8 +56,9 @@ struct sk_buff *digital_skb_alloc(struct nfc_digital_dev *ddev,
 				  unsigned int len);
 
 int digital_send_cmd(struct nfc_digital_dev *ddev, u8 cmd_type,
-		     struct sk_buff *skb, u16 timeout,
-		     nfc_digital_cmd_complete_t cmd_cb, void *cb_context);
+		     struct sk_buff *skb, struct digital_tg_mdaa_params *params,
+		     u16 timeout, nfc_digital_cmd_complete_t cmd_cb,
+		     void *cb_context);
 
 int digital_in_configure_hw(struct nfc_digital_dev *ddev, int type, int param);
 static inline int digital_in_send_cmd(struct nfc_digital_dev *ddev,
@@ -65,8 +66,8 @@ static inline int digital_in_send_cmd(struct nfc_digital_dev *ddev,
 				      nfc_digital_cmd_complete_t cmd_cb,
 				      void *cb_context)
 {
-	return digital_send_cmd(ddev, DIGITAL_CMD_IN_SEND, skb, timeout, cmd_cb,
-				cb_context);
+	return digital_send_cmd(ddev, DIGITAL_CMD_IN_SEND, skb, NULL, timeout,
+				cmd_cb, cb_context);
 }
 
 void digital_poll_next_tech(struct nfc_digital_dev *ddev);
@@ -86,6 +87,36 @@ int digital_in_send_dep_req(struct nfc_digital_dev *ddev,
 			    struct nfc_target *target, struct sk_buff *skb,
 			    struct digital_data_exch *data_exch);
 
+int digital_tg_configure_hw(struct nfc_digital_dev *ddev, int type, int param);
+static inline int digital_tg_send_cmd(struct nfc_digital_dev *ddev,
+			struct sk_buff *skb, u16 timeout,
+			nfc_digital_cmd_complete_t cmd_cb, void *cb_context)
+{
+	return digital_send_cmd(ddev, DIGITAL_CMD_TG_SEND, skb, NULL, timeout,
+				cmd_cb, cb_context);
+}
+
+void digital_tg_recv_sens_req(struct nfc_digital_dev *ddev, void *arg,
+			      struct sk_buff *resp);
+
+void digital_tg_recv_sensf_req(struct nfc_digital_dev *ddev, void *arg,
+			       struct sk_buff *resp);
+
+static inline int digital_tg_listen(struct nfc_digital_dev *ddev, u16 timeout,
+				    nfc_digital_cmd_complete_t cb, void *arg)
+{
+	return digital_send_cmd(ddev, DIGITAL_CMD_TG_LISTEN, NULL, NULL,
+				timeout, cb, arg);
+}
+
+void digital_tg_recv_atr_req(struct nfc_digital_dev *ddev, void *arg,
+			     struct sk_buff *resp);
+
+int digital_tg_send_dep_res(struct nfc_digital_dev *ddev, struct sk_buff *skb);
+
+int digital_tg_listen_nfca(struct nfc_digital_dev *ddev, u8 rf_tech);
+int digital_tg_listen_nfcf(struct nfc_digital_dev *ddev, u8 rf_tech);
+
 typedef u16 (*crc_func_t)(u16, const u8 *, size_t);
 
 #define CRC_A_INIT 0x6363
diff --git a/net/nfc/digital_core.c b/net/nfc/digital_core.c
index dccfcccf6998..66151fc5d990 100644
--- a/net/nfc/digital_core.c
+++ b/net/nfc/digital_core.c
@@ -32,6 +32,7 @@ struct digital_cmd {
 	u16 timeout;
 	struct sk_buff *req;
 	struct sk_buff *resp;
+	struct digital_tg_mdaa_params *mdaa_params;
 
 	nfc_digital_cmd_complete_t cmd_cb;
 	void *cb_context;
@@ -131,6 +132,7 @@ static void digital_wq_cmd_complete(struct work_struct *work)
 
 	cmd->cmd_cb(ddev, cmd->cb_context, cmd->resp);
 
+	kfree(cmd->mdaa_params);
 	kfree(cmd);
 
 	schedule_work(&ddev->cmd_work);
@@ -150,6 +152,7 @@ static void digital_wq_cmd(struct work_struct *work)
 {
 	int rc;
 	struct digital_cmd *cmd;
+	struct digital_tg_mdaa_params *params;
 	struct nfc_digital_dev *ddev = container_of(work,
 						    struct nfc_digital_dev,
 						    cmd_work);
@@ -174,6 +177,24 @@ static void digital_wq_cmd(struct work_struct *work)
 		rc = ddev->ops->in_send_cmd(ddev, cmd->req, cmd->timeout,
 					    digital_send_cmd_complete, cmd);
 		break;
+
+	case DIGITAL_CMD_TG_SEND:
+		rc = ddev->ops->tg_send_cmd(ddev, cmd->req, cmd->timeout,
+					    digital_send_cmd_complete, cmd);
+		break;
+
+	case DIGITAL_CMD_TG_LISTEN:
+		rc = ddev->ops->tg_listen(ddev, cmd->timeout,
+					  digital_send_cmd_complete, cmd);
+		break;
+
+	case DIGITAL_CMD_TG_LISTEN_MDAA:
+		params = cmd->mdaa_params;
+
+		rc = ddev->ops->tg_listen_mdaa(ddev, params, cmd->timeout,
+					       digital_send_cmd_complete, cmd);
+		break;
+
 	default:
 		PR_ERR("Unknown cmd type %d", cmd->type);
 		return;
@@ -189,14 +210,16 @@ static void digital_wq_cmd(struct work_struct *work)
 	mutex_unlock(&ddev->cmd_lock);
 
 	kfree_skb(cmd->req);
+	kfree(cmd->mdaa_params);
 	kfree(cmd);
 
 	schedule_work(&ddev->cmd_work);
 }
 
 int digital_send_cmd(struct nfc_digital_dev *ddev, u8 cmd_type,
-		     struct sk_buff *skb, u16 timeout,
-		     nfc_digital_cmd_complete_t cmd_cb, void *cb_context)
+		     struct sk_buff *skb, struct digital_tg_mdaa_params *params,
+		     u16 timeout, nfc_digital_cmd_complete_t cmd_cb,
+		     void *cb_context)
 {
 	struct digital_cmd *cmd;
 
@@ -207,6 +230,7 @@ int digital_send_cmd(struct nfc_digital_dev *ddev, u8 cmd_type,
 	cmd->type = cmd_type;
 	cmd->timeout = timeout;
 	cmd->req = skb;
+	cmd->mdaa_params = params;
 	cmd->cmd_cb = cmd_cb;
 	cmd->cb_context = cb_context;
 	INIT_LIST_HEAD(&cmd->queue);
@@ -231,6 +255,38 @@ int digital_in_configure_hw(struct nfc_digital_dev *ddev, int type, int param)
 	return rc;
 }
 
+int digital_tg_configure_hw(struct nfc_digital_dev *ddev, int type, int param)
+{
+	int rc;
+
+	rc = ddev->ops->tg_configure_hw(ddev, type, param);
+	if (rc)
+		PR_ERR("tg_configure_hw failed: %d", rc);
+
+	return rc;
+}
+
+static int digital_tg_listen_mdaa(struct nfc_digital_dev *ddev, u8 rf_tech)
+{
+	struct digital_tg_mdaa_params *params;
+
+	params = kzalloc(sizeof(struct digital_tg_mdaa_params), GFP_KERNEL);
+	if (!params)
+		return -ENOMEM;
+
+	params->sens_res = DIGITAL_SENS_RES_NFC_DEP;
+	get_random_bytes(params->nfcid1, sizeof(params->nfcid1));
+	params->sel_res = DIGITAL_SEL_RES_NFC_DEP;
+
+	params->nfcid2[0] = DIGITAL_SENSF_NFCID2_NFC_DEP_B1;
+	params->nfcid2[1] = DIGITAL_SENSF_NFCID2_NFC_DEP_B2;
+	get_random_bytes(params->nfcid2 + 2, NFC_NFCID2_MAXSIZE - 2);
+	params->sc = DIGITAL_SENSF_FELICA_SC;
+
+	return digital_send_cmd(ddev, DIGITAL_CMD_TG_LISTEN_MDAA, NULL, params,
+				500, digital_tg_recv_atr_req, NULL);
+}
+
 int digital_target_found(struct nfc_digital_dev *ddev,
 			 struct nfc_target *target, u8 protocol)
 {
@@ -412,6 +468,22 @@ static int digital_start_poll(struct nfc_dev *nfc_dev, __u32 im_protocols,
 				      digital_in_send_sensf_req);
 	}
 
+	if (tm_protocols & NFC_PROTO_NFC_DEP_MASK) {
+		if (ddev->ops->tg_listen_mdaa) {
+			digital_add_poll_tech(ddev, 0,
+					      digital_tg_listen_mdaa);
+		} else {
+			digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_106A,
+					      digital_tg_listen_nfca);
+
+			digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_212F,
+					      digital_tg_listen_nfcf);
+
+			digital_add_poll_tech(ddev, NFC_DIGITAL_RF_TECH_424F,
+					      digital_tg_listen_nfcf);
+		}
+	}
+
 	if (!ddev->poll_tech_count) {
 		PR_ERR("Unsupported protocols: im=0x%x, tm=0x%x",
 		       matching_im_protocols, matching_tm_protocols);
@@ -496,7 +568,9 @@ static void digital_deactivate_target(struct nfc_dev *nfc_dev,
 
 static int digital_tg_send(struct nfc_dev *dev, struct sk_buff *skb)
 {
-	return -EOPNOTSUPP;
+	struct nfc_digital_dev *ddev = nfc_get_drvdata(dev);
+
+	return digital_tg_send_dep_res(ddev, skb);
 }
 
 static void digital_in_send_complete(struct nfc_digital_dev *ddev, void *arg,
@@ -654,6 +728,7 @@ void nfc_digital_unregister_device(struct nfc_digital_dev *ddev)
 
 	list_for_each_entry_safe(cmd, n, &ddev->cmd_queue, queue) {
 		list_del(&cmd->queue);
+		kfree(cmd->mdaa_params);
 		kfree(cmd);
 	}
 }
diff --git a/net/nfc/digital_dep.c b/net/nfc/digital_dep.c
index be984c4204d2..810d00c9cd5d 100644
--- a/net/nfc/digital_dep.c
+++ b/net/nfc/digital_dep.c
@@ -379,3 +379,349 @@ int digital_in_send_dep_req(struct nfc_digital_dev *ddev,
 	return digital_in_send_cmd(ddev, skb, 1500, digital_in_recv_dep_res,
 				   data_exch);
 }
+
+static void digital_tg_recv_dep_req(struct nfc_digital_dev *ddev, void *arg,
+				    struct sk_buff *resp)
+{
+	int rc;
+	struct digital_dep_req_res *dep_req;
+	size_t size;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	rc = ddev->skb_check_crc(resp);
+	if (rc) {
+		PROTOCOL_ERR("14.4.1.6");
+		goto exit;
+	}
+
+	rc = digital_skb_pull_dep_sod(ddev, resp);
+	if (rc) {
+		PROTOCOL_ERR("14.4.1.2");
+		goto exit;
+	}
+
+	size = sizeof(struct digital_dep_req_res);
+	dep_req = (struct digital_dep_req_res *)resp->data;
+
+	if (resp->len < size || dep_req->dir != DIGITAL_NFC_DEP_FRAME_DIR_OUT ||
+	    dep_req->cmd != DIGITAL_CMD_DEP_REQ) {
+		rc = -EIO;
+		goto exit;
+	}
+
+	if (DIGITAL_NFC_DEP_DID_BIT_SET(dep_req->pfb))
+		size++;
+
+	if (resp->len < size) {
+		rc = -EIO;
+		goto exit;
+	}
+
+	switch (DIGITAL_NFC_DEP_PFB_TYPE(dep_req->pfb)) {
+	case DIGITAL_NFC_DEP_PFB_I_PDU:
+		PR_DBG("DIGITAL_NFC_DEP_PFB_I_PDU");
+		ddev->curr_nfc_dep_pni = DIGITAL_NFC_DEP_PFB_PNI(dep_req->pfb);
+		break;
+	case DIGITAL_NFC_DEP_PFB_ACK_NACK_PDU:
+		PR_ERR("Received a ACK/NACK PDU");
+		rc = -EINVAL;
+		goto exit;
+		break;
+	case DIGITAL_NFC_DEP_PFB_SUPERVISOR_PDU:
+		PR_ERR("Received a SUPERVISOR PDU");
+		rc = -EINVAL;
+		goto exit;
+		break;
+	}
+
+	skb_pull(resp, size);
+
+	rc = nfc_tm_data_received(ddev->nfc_dev, resp);
+
+exit:
+	if (rc)
+		kfree_skb(resp);
+}
+
+int digital_tg_send_dep_res(struct nfc_digital_dev *ddev, struct sk_buff *skb)
+{
+	struct digital_dep_req_res *dep_res;
+
+	skb_push(skb, sizeof(struct digital_dep_req_res));
+	dep_res = (struct digital_dep_req_res *)skb->data;
+
+	dep_res->dir = DIGITAL_NFC_DEP_FRAME_DIR_IN;
+	dep_res->cmd = DIGITAL_CMD_DEP_RES;
+	dep_res->pfb = ddev->curr_nfc_dep_pni;
+
+	digital_skb_push_dep_sod(ddev, skb);
+
+	ddev->skb_add_crc(skb);
+
+	return digital_tg_send_cmd(ddev, skb, 1500, digital_tg_recv_dep_req,
+				   NULL);
+}
+
+static void digital_tg_send_psl_res_complete(struct nfc_digital_dev *ddev,
+					     void *arg, struct sk_buff *resp)
+{
+	u8 rf_tech = PTR_ERR(arg);
+
+	if (IS_ERR(resp))
+		return;
+
+	digital_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH, rf_tech);
+
+	digital_tg_listen(ddev, 1500, digital_tg_recv_dep_req, NULL);
+
+	dev_kfree_skb(resp);
+}
+
+static int digital_tg_send_psl_res(struct nfc_digital_dev *ddev, u8 did,
+				   u8 rf_tech)
+{
+	struct digital_psl_res *psl_res;
+	struct sk_buff *skb;
+	int rc;
+
+	skb = digital_skb_alloc(ddev, sizeof(struct digital_psl_res));
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, sizeof(struct digital_psl_res));
+
+	psl_res = (struct digital_psl_res *)skb->data;
+
+	psl_res->dir = DIGITAL_NFC_DEP_FRAME_DIR_IN;
+	psl_res->cmd = DIGITAL_CMD_PSL_RES;
+	psl_res->did = did;
+
+	digital_skb_push_dep_sod(ddev, skb);
+
+	ddev->skb_add_crc(skb);
+
+	rc = digital_tg_send_cmd(ddev, skb, 0, digital_tg_send_psl_res_complete,
+				 ERR_PTR(rf_tech));
+
+	if (rc)
+		kfree_skb(skb);
+
+	return rc;
+}
+
+static void digital_tg_recv_psl_req(struct nfc_digital_dev *ddev, void *arg,
+				    struct sk_buff *resp)
+{
+	int rc;
+	struct digital_psl_req *psl_req;
+	u8 rf_tech;
+	u8 dsi;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	rc = ddev->skb_check_crc(resp);
+	if (rc) {
+		PROTOCOL_ERR("14.4.1.6");
+		goto exit;
+	}
+
+	rc = digital_skb_pull_dep_sod(ddev, resp);
+	if (rc) {
+		PROTOCOL_ERR("14.4.1.2");
+		goto exit;
+	}
+
+	psl_req = (struct digital_psl_req *)resp->data;
+
+	if (resp->len != sizeof(struct digital_psl_req) ||
+	    psl_req->dir != DIGITAL_NFC_DEP_FRAME_DIR_OUT ||
+	    psl_req->cmd != DIGITAL_CMD_PSL_REQ) {
+		rc = -EIO;
+		goto exit;
+	}
+
+	dsi = (psl_req->brs >> 3) & 0x07;
+	switch (dsi) {
+	case 0:
+		rf_tech = NFC_DIGITAL_RF_TECH_106A;
+		break;
+	case 1:
+		rf_tech = NFC_DIGITAL_RF_TECH_212F;
+		break;
+	case 2:
+		rf_tech = NFC_DIGITAL_RF_TECH_424F;
+		break;
+	default:
+		PR_ERR("Unsuported dsi value %d", dsi);
+		goto exit;
+	}
+
+	rc = digital_tg_send_psl_res(ddev, psl_req->did, rf_tech);
+
+exit:
+	kfree_skb(resp);
+}
+
+static void digital_tg_send_atr_res_complete(struct nfc_digital_dev *ddev,
+					     void *arg, struct sk_buff *resp)
+{
+	int offset;
+
+	if (IS_ERR(resp)) {
+		digital_poll_next_tech(ddev);
+		return;
+	}
+
+	offset = 2;
+	if (resp->data[0] == DIGITAL_NFC_DEP_NFCA_SOD_SB)
+		offset++;
+
+	if (resp->data[offset] == DIGITAL_CMD_PSL_REQ)
+		digital_tg_recv_psl_req(ddev, arg, resp);
+	else
+		digital_tg_recv_dep_req(ddev, arg, resp);
+}
+
+static int digital_tg_send_atr_res(struct nfc_digital_dev *ddev,
+				   struct digital_atr_req *atr_req)
+{
+	struct digital_atr_res *atr_res;
+	struct sk_buff *skb;
+	u8 *gb;
+	size_t gb_len;
+	int rc;
+
+	gb = nfc_get_local_general_bytes(ddev->nfc_dev, &gb_len);
+	if (!gb)
+		gb_len = 0;
+
+	skb = digital_skb_alloc(ddev, sizeof(struct digital_atr_res) + gb_len);
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, sizeof(struct digital_atr_res));
+	atr_res = (struct digital_atr_res *)skb->data;
+
+	memset(atr_res, 0, sizeof(struct digital_atr_res));
+
+	atr_res->dir = DIGITAL_NFC_DEP_FRAME_DIR_IN;
+	atr_res->cmd = DIGITAL_CMD_ATR_RES;
+	memcpy(atr_res->nfcid3, atr_req->nfcid3, sizeof(atr_req->nfcid3));
+	atr_res->to = 8;
+	atr_res->pp = DIGITAL_LR_BITS_PAYLOAD_SIZE_254B;
+	if (gb_len) {
+		skb_put(skb, gb_len);
+
+		atr_res->pp |= DIGITAL_GB_BIT;
+		memcpy(atr_res->gb, gb, gb_len);
+	}
+
+	digital_skb_push_dep_sod(ddev, skb);
+
+	ddev->skb_add_crc(skb);
+
+	rc = digital_tg_send_cmd(ddev, skb, 999,
+				 digital_tg_send_atr_res_complete, NULL);
+	if (rc) {
+		kfree_skb(skb);
+		return rc;
+	}
+
+	return rc;
+}
+
+void digital_tg_recv_atr_req(struct nfc_digital_dev *ddev, void *arg,
+			     struct sk_buff *resp)
+{
+	int rc;
+	struct digital_atr_req *atr_req;
+	size_t gb_len, min_size;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	if (!resp->len) {
+		rc = -EIO;
+		goto exit;
+	}
+
+	if (resp->data[0] == DIGITAL_NFC_DEP_NFCA_SOD_SB) {
+		min_size = DIGITAL_ATR_REQ_MIN_SIZE + 2;
+
+		ddev->curr_rf_tech = NFC_DIGITAL_RF_TECH_106A;
+		ddev->skb_add_crc = digital_skb_add_crc_a;
+		ddev->skb_check_crc = digital_skb_check_crc_a;
+	} else {
+		min_size = DIGITAL_ATR_REQ_MIN_SIZE + 1;
+
+		ddev->curr_rf_tech = NFC_DIGITAL_RF_TECH_212F;
+		ddev->skb_add_crc = digital_skb_add_crc_f;
+		ddev->skb_check_crc = digital_skb_check_crc_f;
+	}
+
+	if (resp->len < min_size) {
+		rc = -EIO;
+		goto exit;
+	}
+
+	if (DIGITAL_DRV_CAPS_TG_CRC(ddev)) {
+		ddev->skb_add_crc = digital_skb_add_crc_none;
+		ddev->skb_check_crc = digital_skb_check_crc_none;
+	}
+
+	rc = ddev->skb_check_crc(resp);
+	if (rc) {
+		PROTOCOL_ERR("14.4.1.6");
+		goto exit;
+	}
+
+	rc = digital_skb_pull_dep_sod(ddev, resp);
+	if (rc) {
+		PROTOCOL_ERR("14.4.1.2");
+		goto exit;
+	}
+
+	atr_req = (struct digital_atr_req *)resp->data;
+
+	if (atr_req->dir != DIGITAL_NFC_DEP_FRAME_DIR_OUT ||
+	    atr_req->cmd != DIGITAL_CMD_ATR_REQ) {
+		rc = -EINVAL;
+		goto exit;
+	}
+
+	rc = digital_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,
+				     NFC_DIGITAL_FRAMING_NFC_DEP_ACTIVATED);
+	if (rc)
+		goto exit;
+
+	rc = digital_tg_send_atr_res(ddev, atr_req);
+	if (rc)
+		goto exit;
+
+	gb_len = resp->len - sizeof(struct digital_atr_req);
+	rc = nfc_tm_activated(ddev->nfc_dev, NFC_PROTO_NFC_DEP_MASK,
+			      NFC_COMM_PASSIVE, atr_req->gb, gb_len);
+	if (rc)
+		goto exit;
+
+	ddev->poll_tech_count = 0;
+
+	rc = 0;
+exit:
+	if (rc)
+		digital_poll_next_tech(ddev);
+
+	dev_kfree_skb(resp);
+}
diff --git a/net/nfc/digital_technology.c b/net/nfc/digital_technology.c
index 0c28f600fd1c..564735fbbd8f 100644
--- a/net/nfc/digital_technology.c
+++ b/net/nfc/digital_technology.c
@@ -475,3 +475,299 @@ int digital_in_send_sensf_req(struct nfc_digital_dev *ddev, u8 rf_tech)
 
 	return rc;
 }
+
+static int digital_tg_send_sel_res(struct nfc_digital_dev *ddev)
+{
+	struct sk_buff *skb;
+	int rc;
+
+	skb = digital_skb_alloc(ddev, 1);
+	if (!skb)
+		return -ENOMEM;
+
+	*skb_put(skb, 1) = DIGITAL_SEL_RES_NFC_DEP;
+
+	if (!DIGITAL_DRV_CAPS_TG_CRC(ddev))
+		digital_skb_add_crc_a(skb);
+
+	rc = digital_tg_send_cmd(ddev, skb, 300, digital_tg_recv_atr_req,
+				 NULL);
+	if (rc)
+		kfree_skb(skb);
+
+	return rc;
+}
+
+static void digital_tg_recv_sel_req(struct nfc_digital_dev *ddev, void *arg,
+				    struct sk_buff *resp)
+{
+	int rc;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	if (!DIGITAL_DRV_CAPS_TG_CRC(ddev)) {
+		rc = digital_skb_check_crc_a(resp);
+		if (rc) {
+			PROTOCOL_ERR("4.4.1.3");
+			goto exit;
+		}
+	}
+
+	/* Silently ignore SEL_REQ content and send a SEL_RES for NFC-DEP */
+
+	rc = digital_tg_send_sel_res(ddev);
+
+exit:
+	if (rc)
+		digital_poll_next_tech(ddev);
+
+	dev_kfree_skb(resp);
+}
+
+static int digital_tg_send_sdd_res(struct nfc_digital_dev *ddev)
+{
+	struct sk_buff *skb;
+	struct digital_sdd_res *sdd_res;
+	int rc, i;
+
+	skb = digital_skb_alloc(ddev, sizeof(struct digital_sdd_res));
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, sizeof(struct digital_sdd_res));
+	sdd_res = (struct digital_sdd_res *)skb->data;
+
+	sdd_res->nfcid1[0] = 0x08;
+	get_random_bytes(sdd_res->nfcid1 + 1, 3);
+
+	sdd_res->bcc = 0;
+	for (i = 0; i < 4; i++)
+		sdd_res->bcc ^= sdd_res->nfcid1[i];
+
+	rc = digital_tg_send_cmd(ddev, skb, 300, digital_tg_recv_sel_req,
+				 NULL);
+	if (rc)
+		kfree_skb(skb);
+
+	return rc;
+}
+
+static void digital_tg_recv_sdd_req(struct nfc_digital_dev *ddev, void *arg,
+				    struct sk_buff *resp)
+{
+	u8 *sdd_req;
+	int rc;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	sdd_req = resp->data;
+
+	if (resp->len < 2 || sdd_req[0] != DIGITAL_CMD_SEL_REQ_CL1 ||
+	    sdd_req[1] != DIGITAL_SDD_REQ_SEL_PAR) {
+		rc = -EINVAL;
+		goto exit;
+	}
+
+	rc = digital_tg_send_sdd_res(ddev);
+
+exit:
+	if (rc)
+		digital_poll_next_tech(ddev);
+
+	dev_kfree_skb(resp);
+}
+
+static int digital_tg_send_sens_res(struct nfc_digital_dev *ddev)
+{
+	struct sk_buff *skb;
+	u8 *sens_res;
+	int rc;
+
+	skb = digital_skb_alloc(ddev, 2);
+	if (!skb)
+		return -ENOMEM;
+
+	sens_res = skb_put(skb, 2);
+
+	sens_res[0] = (DIGITAL_SENS_RES_NFC_DEP >> 8) & 0xFF;
+	sens_res[1] = DIGITAL_SENS_RES_NFC_DEP & 0xFF;
+
+	rc = digital_tg_send_cmd(ddev, skb, 300, digital_tg_recv_sdd_req,
+				 NULL);
+	if (rc)
+		kfree_skb(skb);
+
+	return rc;
+}
+
+void digital_tg_recv_sens_req(struct nfc_digital_dev *ddev, void *arg,
+			      struct sk_buff *resp)
+{
+	u8 sens_req;
+	int rc;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	sens_req = resp->data[0];
+
+	if (!resp->len || (sens_req != DIGITAL_CMD_SENS_REQ &&
+	    sens_req != DIGITAL_CMD_ALL_REQ)) {
+		rc = -EINVAL;
+		goto exit;
+	}
+
+	rc = digital_tg_send_sens_res(ddev);
+
+exit:
+	if (rc)
+		digital_poll_next_tech(ddev);
+
+	dev_kfree_skb(resp);
+}
+
+int digital_tg_send_sensf_res(struct nfc_digital_dev *ddev,
+			      struct digital_sensf_req *sensf_req)
+{
+	struct sk_buff *skb;
+	u8 size;
+	int rc;
+	struct digital_sensf_res *sensf_res;
+
+	size = sizeof(struct digital_sensf_res);
+
+	if (sensf_req->rc != DIGITAL_SENSF_REQ_RC_NONE)
+		size -= sizeof(sensf_res->rd);
+
+	skb = digital_skb_alloc(ddev, size);
+	if (!skb)
+		return -ENOMEM;
+
+	skb_put(skb, size);
+
+	sensf_res = (struct digital_sensf_res *)skb->data;
+
+	memset(sensf_res, 0, size);
+
+	sensf_res->cmd = DIGITAL_CMD_SENSF_RES;
+	sensf_res->nfcid2[0] = DIGITAL_SENSF_NFCID2_NFC_DEP_B1;
+	sensf_res->nfcid2[1] = DIGITAL_SENSF_NFCID2_NFC_DEP_B2;
+	get_random_bytes(&sensf_res->nfcid2[2], 6);
+
+	switch (sensf_req->rc) {
+	case DIGITAL_SENSF_REQ_RC_SC:
+		sensf_res->rd[0] = sensf_req->sc1;
+		sensf_res->rd[1] = sensf_req->sc2;
+		break;
+	case DIGITAL_SENSF_REQ_RC_AP:
+		sensf_res->rd[0] = DIGITAL_SENSF_RES_RD_AP_B1;
+		sensf_res->rd[1] = DIGITAL_SENSF_RES_RD_AP_B2;
+		break;
+	}
+
+	*skb_push(skb, sizeof(u8)) = size + 1;
+
+	if (!DIGITAL_DRV_CAPS_TG_CRC(ddev))
+		digital_skb_add_crc_f(skb);
+
+	rc = digital_tg_send_cmd(ddev, skb, 300,
+				 digital_tg_recv_atr_req, NULL);
+	if (rc)
+		kfree_skb(skb);
+
+	return rc;
+}
+
+void digital_tg_recv_sensf_req(struct nfc_digital_dev *ddev, void *arg,
+			       struct sk_buff *resp)
+{
+	struct digital_sensf_req *sensf_req;
+	int rc;
+
+	if (IS_ERR(resp)) {
+		rc = PTR_ERR(resp);
+		resp = NULL;
+		goto exit;
+	}
+
+	if (!DIGITAL_DRV_CAPS_TG_CRC(ddev)) {
+		rc = digital_skb_check_crc_f(resp);
+		if (rc) {
+			PROTOCOL_ERR("6.4.1.8");
+			goto exit;
+		}
+	}
+
+	if (resp->len != sizeof(struct digital_sensf_req) + 1) {
+		rc = -EINVAL;
+		goto exit;
+	}
+
+	skb_pull(resp, 1);
+	sensf_req = (struct digital_sensf_req *)resp->data;
+
+	if (sensf_req->cmd != DIGITAL_CMD_SENSF_REQ) {
+		rc = -EINVAL;
+		goto exit;
+	}
+
+	rc = digital_tg_send_sensf_res(ddev, sensf_req);
+
+exit:
+	if (rc)
+		digital_poll_next_tech(ddev);
+
+	dev_kfree_skb(resp);
+}
+
+int digital_tg_listen_nfca(struct nfc_digital_dev *ddev, u8 rf_tech)
+{
+	int rc;
+
+	rc = digital_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH, rf_tech);
+	if (rc)
+		return rc;
+
+	rc = digital_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,
+				     NFC_DIGITAL_FRAMING_NFCA_NFC_DEP);
+	if (rc)
+		return rc;
+
+	return digital_tg_listen(ddev, 300, digital_tg_recv_sens_req, NULL);
+}
+
+int digital_tg_listen_nfcf(struct nfc_digital_dev *ddev, u8 rf_tech)
+{
+	int rc;
+	u8 *nfcid2;
+
+	rc = digital_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH, rf_tech);
+	if (rc)
+		return rc;
+
+	rc = digital_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,
+				     NFC_DIGITAL_FRAMING_NFCF_NFC_DEP);
+	if (rc)
+		return rc;
+
+	nfcid2 = kzalloc(NFC_NFCID2_MAXSIZE, GFP_KERNEL);
+	if (!nfcid2)
+		return -ENOMEM;
+
+	nfcid2[0] = DIGITAL_SENSF_NFCID2_NFC_DEP_B1;
+	nfcid2[1] = DIGITAL_SENSF_NFCID2_NFC_DEP_B2;
+	get_random_bytes(nfcid2 + 2, NFC_NFCID2_MAXSIZE - 2);
+
+	return digital_tg_listen(ddev, 300, digital_tg_recv_sensf_req, nfcid2);
+}
-- 
cgit 


From 645d5087bd9667ed398bcb4bfd8784e1de1ee693 Mon Sep 17 00:00:00 2001
From: Eric Lapuyade <eric.lapuyade@linux.intel.com>
Date: Thu, 19 Sep 2013 16:52:06 +0200
Subject: NFC: NCI: Store the spi device pointer from the spi instance

Storing the spi device was forgotten in the original implementation,
which would pretty obviously cause some kind of serious crash when
actually trying to send something through that device.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 net/nfc/nci/spi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/nfc/nci/spi.c b/net/nfc/nci/spi.c
index 910dfd8015f4..5c2234024774 100644
--- a/net/nfc/nci/spi.c
+++ b/net/nfc/nci/spi.c
@@ -129,6 +129,7 @@ struct nci_spi *nci_spi_allocate_spi(struct spi_device *spi,
 	nspi->acknowledge_mode = acknowledge_mode;
 	nspi->xfer_udelay = delay;
 
+	nspi->spi = spi;
 	nspi->ndev = ndev;
 
 	return nspi;
-- 
cgit 


From c5da0e4a35eb1eba0c1593bef4bf2b58d9d50d6b Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Fri, 20 Sep 2013 09:05:48 +0200
Subject: NFC: digital: Remove PR_ERR and PR_DBG macros

They can be replaced by the standard pr_err and pr_debug one after
defining the right pr_fmt macro.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 net/nfc/digital.h            |  6 ++----
 net/nfc/digital_core.c       | 34 ++++++++++++++++++----------------
 net/nfc/digital_dep.c        | 14 ++++++++------
 net/nfc/digital_technology.c |  4 +++-
 4 files changed, 31 insertions(+), 27 deletions(-)

diff --git a/net/nfc/digital.h b/net/nfc/digital.h
index 586075a3feed..08b29b55ea63 100644
--- a/net/nfc/digital.h
+++ b/net/nfc/digital.h
@@ -22,10 +22,8 @@
 #include <linux/crc-ccitt.h>
 #include <linux/crc-itu-t.h>
 
-#define PR_DBG(fmt, ...)  pr_debug("%s: " fmt "\n", __func__, ##__VA_ARGS__)
-#define PR_ERR(fmt, ...)  pr_err("%s: " fmt "\n", __func__, ##__VA_ARGS__)
-#define PROTOCOL_ERR(req) pr_err("%s:%d: NFC Digital Protocol error: %s\n", \
-				 __func__, __LINE__, req)
+#define PROTOCOL_ERR(req) pr_err("%d: NFC Digital Protocol error: %s\n", \
+				 __LINE__, req)
 
 #define DIGITAL_CMD_IN_SEND        0
 #define DIGITAL_CMD_TG_SEND        1
diff --git a/net/nfc/digital_core.c b/net/nfc/digital_core.c
index 66151fc5d990..6f563d09b520 100644
--- a/net/nfc/digital_core.c
+++ b/net/nfc/digital_core.c
@@ -13,6 +13,8 @@
  *
  */
 
+#define pr_fmt(fmt) "digital: %s: " fmt, __func__
+
 #include <linux/module.h>
 
 #include "digital.h"
@@ -196,14 +198,14 @@ static void digital_wq_cmd(struct work_struct *work)
 		break;
 
 	default:
-		PR_ERR("Unknown cmd type %d", cmd->type);
+		pr_err("Unknown cmd type %d", cmd->type);
 		return;
 	}
 
 	if (!rc)
 		return;
 
-	PR_ERR("in_send_command returned err %d", rc);
+	pr_err("in_send_command returned err %d", rc);
 
 	mutex_lock(&ddev->cmd_lock);
 	list_del(&cmd->queue);
@@ -250,7 +252,7 @@ int digital_in_configure_hw(struct nfc_digital_dev *ddev, int type, int param)
 
 	rc = ddev->ops->in_configure_hw(ddev, type, param);
 	if (rc)
-		PR_ERR("in_configure_hw failed: %d", rc);
+		pr_err("in_configure_hw failed: %d", rc);
 
 	return rc;
 }
@@ -261,7 +263,7 @@ int digital_tg_configure_hw(struct nfc_digital_dev *ddev, int type, int param)
 
 	rc = ddev->ops->tg_configure_hw(ddev, type, param);
 	if (rc)
-		PR_ERR("tg_configure_hw failed: %d", rc);
+		pr_err("tg_configure_hw failed: %d", rc);
 
 	return rc;
 }
@@ -330,11 +332,11 @@ int digital_target_found(struct nfc_digital_dev *ddev,
 		break;
 
 	default:
-		PR_ERR("Invalid protocol %d", protocol);
+		pr_err("Invalid protocol %d", protocol);
 		return -EINVAL;
 	}
 
-	PR_DBG("rf_tech=%d, protocol=%d", rf_tech, protocol);
+	pr_debug("rf_tech=%d, protocol=%d", rf_tech, protocol);
 
 	ddev->curr_rf_tech = rf_tech;
 	ddev->curr_protocol = protocol;
@@ -432,24 +434,24 @@ static int digital_start_poll(struct nfc_dev *nfc_dev, __u32 im_protocols,
 	struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
 	u32 matching_im_protocols, matching_tm_protocols;
 
-	PR_DBG("protocols: im 0x%x, tm 0x%x, supported 0x%x", im_protocols,
-	       tm_protocols, ddev->protocols);
+	pr_debug("protocols: im 0x%x, tm 0x%x, supported 0x%x", im_protocols,
+		 tm_protocols, ddev->protocols);
 
 	matching_im_protocols = ddev->protocols & im_protocols;
 	matching_tm_protocols = ddev->protocols & tm_protocols;
 
 	if (!matching_im_protocols && !matching_tm_protocols) {
-		PR_ERR("No known protocol");
+		pr_err("No known protocol");
 		return -EINVAL;
 	}
 
 	if (ddev->poll_tech_count) {
-		PR_ERR("Already polling");
+		pr_err("Already polling");
 		return -EBUSY;
 	}
 
 	if (ddev->curr_protocol) {
-		PR_ERR("A target is already active");
+		pr_err("A target is already active");
 		return -EBUSY;
 	}
 
@@ -485,7 +487,7 @@ static int digital_start_poll(struct nfc_dev *nfc_dev, __u32 im_protocols,
 	}
 
 	if (!ddev->poll_tech_count) {
-		PR_ERR("Unsupported protocols: im=0x%x, tm=0x%x",
+		pr_err("Unsupported protocols: im=0x%x, tm=0x%x",
 		       matching_im_protocols, matching_tm_protocols);
 		return -EINVAL;
 	}
@@ -502,7 +504,7 @@ static void digital_stop_poll(struct nfc_dev *nfc_dev)
 	mutex_lock(&ddev->poll_lock);
 
 	if (!ddev->poll_tech_count) {
-		PR_ERR("Polling operation was not running");
+		pr_err("Polling operation was not running");
 		mutex_unlock(&ddev->poll_lock);
 		return;
 	}
@@ -609,7 +611,7 @@ static int digital_in_send(struct nfc_dev *nfc_dev, struct nfc_target *target,
 
 	data_exch = kzalloc(sizeof(struct digital_data_exch), GFP_KERNEL);
 	if (!data_exch) {
-		PR_ERR("Failed to allocate data_exch struct");
+		pr_err("Failed to allocate data_exch struct");
 		return -ENOMEM;
 	}
 
@@ -652,7 +654,7 @@ struct nfc_digital_dev *nfc_digital_allocate_device(struct nfc_digital_ops *ops,
 
 	ddev = kzalloc(sizeof(struct nfc_digital_dev), GFP_KERNEL);
 	if (!ddev) {
-		PR_ERR("kzalloc failed");
+		pr_err("kzalloc failed");
 		return NULL;
 	}
 
@@ -684,7 +686,7 @@ struct nfc_digital_dev *nfc_digital_allocate_device(struct nfc_digital_ops *ops,
 					    ddev->tx_headroom,
 					    ddev->tx_tailroom);
 	if (!ddev->nfc_dev) {
-		PR_ERR("nfc_allocate_device failed");
+		pr_err("nfc_allocate_device failed");
 		goto free_dev;
 	}
 
diff --git a/net/nfc/digital_dep.c b/net/nfc/digital_dep.c
index 810d00c9cd5d..15f140ae9099 100644
--- a/net/nfc/digital_dep.c
+++ b/net/nfc/digital_dep.c
@@ -13,6 +13,8 @@
  *
  */
 
+#define pr_fmt(fmt) "digital: %s: " fmt, __func__
+
 #include "digital.h"
 
 #define DIGITAL_NFC_DEP_FRAME_DIR_OUT 0xD4
@@ -313,7 +315,7 @@ static void digital_in_recv_dep_res(struct nfc_digital_dev *ddev, void *arg,
 		break;
 
 	case DIGITAL_NFC_DEP_PFB_ACK_NACK_PDU:
-		PR_ERR("Received a ACK/NACK PDU");
+		pr_err("Received a ACK/NACK PDU");
 		rc = -EIO;
 		goto error;
 
@@ -332,7 +334,7 @@ static void digital_in_recv_dep_res(struct nfc_digital_dev *ddev, void *arg,
 	}
 
 	if (DIGITAL_NFC_DEP_MI_BIT_SET(pfb)) {
-		PR_ERR("MI bit set. Chained PDU not supported.");
+		pr_err("MI bit set. Chained PDU not supported.");
 		rc = -EIO;
 		goto error;
 	}
@@ -424,16 +426,16 @@ static void digital_tg_recv_dep_req(struct nfc_digital_dev *ddev, void *arg,
 
 	switch (DIGITAL_NFC_DEP_PFB_TYPE(dep_req->pfb)) {
 	case DIGITAL_NFC_DEP_PFB_I_PDU:
-		PR_DBG("DIGITAL_NFC_DEP_PFB_I_PDU");
+		pr_debug("DIGITAL_NFC_DEP_PFB_I_PDU");
 		ddev->curr_nfc_dep_pni = DIGITAL_NFC_DEP_PFB_PNI(dep_req->pfb);
 		break;
 	case DIGITAL_NFC_DEP_PFB_ACK_NACK_PDU:
-		PR_ERR("Received a ACK/NACK PDU");
+		pr_err("Received a ACK/NACK PDU");
 		rc = -EINVAL;
 		goto exit;
 		break;
 	case DIGITAL_NFC_DEP_PFB_SUPERVISOR_PDU:
-		PR_ERR("Received a SUPERVISOR PDU");
+		pr_err("Received a SUPERVISOR PDU");
 		rc = -EINVAL;
 		goto exit;
 		break;
@@ -561,7 +563,7 @@ static void digital_tg_recv_psl_req(struct nfc_digital_dev *ddev, void *arg,
 		rf_tech = NFC_DIGITAL_RF_TECH_424F;
 		break;
 	default:
-		PR_ERR("Unsuported dsi value %d", dsi);
+		pr_err("Unsuported dsi value %d", dsi);
 		goto exit;
 	}
 
diff --git a/net/nfc/digital_technology.c b/net/nfc/digital_technology.c
index 564735fbbd8f..5a13e1bb1e68 100644
--- a/net/nfc/digital_technology.c
+++ b/net/nfc/digital_technology.c
@@ -13,6 +13,8 @@
  *
  */
 
+#define pr_fmt(fmt) "digital: %s: " fmt, __func__
+
 #include "digital.h"
 
 #define DIGITAL_CMD_SENS_REQ    0x26
@@ -258,7 +260,7 @@ static int digital_in_send_sdd_req(struct nfc_digital_dev *ddev,
 
 	skb = digital_skb_alloc(ddev, 2);
 	if (!skb) {
-		PR_ERR("alloc_skb failed");
+		pr_err("alloc_skb failed");
 		return -ENOMEM;
 	}
 
-- 
cgit 


From 260425308de63155a087361d961dafd2dd45e275 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Fri, 20 Sep 2013 16:56:40 +0200
Subject: NFC: digital: Add newline to pr_* calls

We do not add the newline to the pr_fmt macro, in order to give more
flexibility to the caller and to keep the logging style consistent with
the rest of the NFC and kernel code.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 net/nfc/digital_core.c       | 32 +++++++++++++++-----------------
 net/nfc/digital_dep.c        | 12 ++++++------
 net/nfc/digital_technology.c |  4 +---
 3 files changed, 22 insertions(+), 26 deletions(-)

diff --git a/net/nfc/digital_core.c b/net/nfc/digital_core.c
index 6f563d09b520..09fc95439955 100644
--- a/net/nfc/digital_core.c
+++ b/net/nfc/digital_core.c
@@ -198,14 +198,14 @@ static void digital_wq_cmd(struct work_struct *work)
 		break;
 
 	default:
-		pr_err("Unknown cmd type %d", cmd->type);
+		pr_err("Unknown cmd type %d\n", cmd->type);
 		return;
 	}
 
 	if (!rc)
 		return;
 
-	pr_err("in_send_command returned err %d", rc);
+	pr_err("in_send_command returned err %d\n", rc);
 
 	mutex_lock(&ddev->cmd_lock);
 	list_del(&cmd->queue);
@@ -252,7 +252,7 @@ int digital_in_configure_hw(struct nfc_digital_dev *ddev, int type, int param)
 
 	rc = ddev->ops->in_configure_hw(ddev, type, param);
 	if (rc)
-		pr_err("in_configure_hw failed: %d", rc);
+		pr_err("in_configure_hw failed: %d\n", rc);
 
 	return rc;
 }
@@ -263,7 +263,7 @@ int digital_tg_configure_hw(struct nfc_digital_dev *ddev, int type, int param)
 
 	rc = ddev->ops->tg_configure_hw(ddev, type, param);
 	if (rc)
-		pr_err("tg_configure_hw failed: %d", rc);
+		pr_err("tg_configure_hw failed: %d\n", rc);
 
 	return rc;
 }
@@ -332,11 +332,11 @@ int digital_target_found(struct nfc_digital_dev *ddev,
 		break;
 
 	default:
-		pr_err("Invalid protocol %d", protocol);
+		pr_err("Invalid protocol %d\n", protocol);
 		return -EINVAL;
 	}
 
-	pr_debug("rf_tech=%d, protocol=%d", rf_tech, protocol);
+	pr_debug("rf_tech=%d, protocol=%d\n", rf_tech, protocol);
 
 	ddev->curr_rf_tech = rf_tech;
 	ddev->curr_protocol = protocol;
@@ -434,24 +434,24 @@ static int digital_start_poll(struct nfc_dev *nfc_dev, __u32 im_protocols,
 	struct nfc_digital_dev *ddev = nfc_get_drvdata(nfc_dev);
 	u32 matching_im_protocols, matching_tm_protocols;
 
-	pr_debug("protocols: im 0x%x, tm 0x%x, supported 0x%x", im_protocols,
+	pr_debug("protocols: im 0x%x, tm 0x%x, supported 0x%x\n", im_protocols,
 		 tm_protocols, ddev->protocols);
 
 	matching_im_protocols = ddev->protocols & im_protocols;
 	matching_tm_protocols = ddev->protocols & tm_protocols;
 
 	if (!matching_im_protocols && !matching_tm_protocols) {
-		pr_err("No known protocol");
+		pr_err("Unknown protocol\n");
 		return -EINVAL;
 	}
 
 	if (ddev->poll_tech_count) {
-		pr_err("Already polling");
+		pr_err("Already polling\n");
 		return -EBUSY;
 	}
 
 	if (ddev->curr_protocol) {
-		pr_err("A target is already active");
+		pr_err("A target is already active\n");
 		return -EBUSY;
 	}
 
@@ -487,7 +487,7 @@ static int digital_start_poll(struct nfc_dev *nfc_dev, __u32 im_protocols,
 	}
 
 	if (!ddev->poll_tech_count) {
-		pr_err("Unsupported protocols: im=0x%x, tm=0x%x",
+		pr_err("Unsupported protocols: im=0x%x, tm=0x%x\n",
 		       matching_im_protocols, matching_tm_protocols);
 		return -EINVAL;
 	}
@@ -504,7 +504,7 @@ static void digital_stop_poll(struct nfc_dev *nfc_dev)
 	mutex_lock(&ddev->poll_lock);
 
 	if (!ddev->poll_tech_count) {
-		pr_err("Polling operation was not running");
+		pr_err("Polling operation was not running\n");
 		mutex_unlock(&ddev->poll_lock);
 		return;
 	}
@@ -611,7 +611,7 @@ static int digital_in_send(struct nfc_dev *nfc_dev, struct nfc_target *target,
 
 	data_exch = kzalloc(sizeof(struct digital_data_exch), GFP_KERNEL);
 	if (!data_exch) {
-		pr_err("Failed to allocate data_exch struct");
+		pr_err("Failed to allocate data_exch struct\n");
 		return -ENOMEM;
 	}
 
@@ -653,10 +653,8 @@ struct nfc_digital_dev *nfc_digital_allocate_device(struct nfc_digital_ops *ops,
 		return NULL;
 
 	ddev = kzalloc(sizeof(struct nfc_digital_dev), GFP_KERNEL);
-	if (!ddev) {
-		pr_err("kzalloc failed");
+	if (!ddev)
 		return NULL;
-	}
 
 	ddev->driver_capabilities = driver_capabilities;
 	ddev->ops = ops;
@@ -686,7 +684,7 @@ struct nfc_digital_dev *nfc_digital_allocate_device(struct nfc_digital_ops *ops,
 					    ddev->tx_headroom,
 					    ddev->tx_tailroom);
 	if (!ddev->nfc_dev) {
-		pr_err("nfc_allocate_device failed");
+		pr_err("nfc_allocate_device failed\n");
 		goto free_dev;
 	}
 
diff --git a/net/nfc/digital_dep.c b/net/nfc/digital_dep.c
index 15f140ae9099..07bbc24fb4c7 100644
--- a/net/nfc/digital_dep.c
+++ b/net/nfc/digital_dep.c
@@ -315,7 +315,7 @@ static void digital_in_recv_dep_res(struct nfc_digital_dev *ddev, void *arg,
 		break;
 
 	case DIGITAL_NFC_DEP_PFB_ACK_NACK_PDU:
-		pr_err("Received a ACK/NACK PDU");
+		pr_err("Received a ACK/NACK PDU\n");
 		rc = -EIO;
 		goto error;
 
@@ -334,7 +334,7 @@ static void digital_in_recv_dep_res(struct nfc_digital_dev *ddev, void *arg,
 	}
 
 	if (DIGITAL_NFC_DEP_MI_BIT_SET(pfb)) {
-		pr_err("MI bit set. Chained PDU not supported.");
+		pr_err("MI bit set. Chained PDU not supported\n");
 		rc = -EIO;
 		goto error;
 	}
@@ -426,16 +426,16 @@ static void digital_tg_recv_dep_req(struct nfc_digital_dev *ddev, void *arg,
 
 	switch (DIGITAL_NFC_DEP_PFB_TYPE(dep_req->pfb)) {
 	case DIGITAL_NFC_DEP_PFB_I_PDU:
-		pr_debug("DIGITAL_NFC_DEP_PFB_I_PDU");
+		pr_debug("DIGITAL_NFC_DEP_PFB_I_PDU\n");
 		ddev->curr_nfc_dep_pni = DIGITAL_NFC_DEP_PFB_PNI(dep_req->pfb);
 		break;
 	case DIGITAL_NFC_DEP_PFB_ACK_NACK_PDU:
-		pr_err("Received a ACK/NACK PDU");
+		pr_err("Received a ACK/NACK PDU\n");
 		rc = -EINVAL;
 		goto exit;
 		break;
 	case DIGITAL_NFC_DEP_PFB_SUPERVISOR_PDU:
-		pr_err("Received a SUPERVISOR PDU");
+		pr_err("Received a SUPERVISOR PDU\n");
 		rc = -EINVAL;
 		goto exit;
 		break;
@@ -563,7 +563,7 @@ static void digital_tg_recv_psl_req(struct nfc_digital_dev *ddev, void *arg,
 		rf_tech = NFC_DIGITAL_RF_TECH_424F;
 		break;
 	default:
-		pr_err("Unsuported dsi value %d", dsi);
+		pr_err("Unsuported dsi value %d\n", dsi);
 		goto exit;
 	}
 
diff --git a/net/nfc/digital_technology.c b/net/nfc/digital_technology.c
index 5a13e1bb1e68..bcdb73eaf945 100644
--- a/net/nfc/digital_technology.c
+++ b/net/nfc/digital_technology.c
@@ -259,10 +259,8 @@ static int digital_in_send_sdd_req(struct nfc_digital_dev *ddev,
 		return rc;
 
 	skb = digital_skb_alloc(ddev, 2);
-	if (!skb) {
-		pr_err("alloc_skb failed");
+	if (!skb)
 		return -ENOMEM;
-	}
 
 	if (target->nfcid1_len == 0)
 		sel_cmd = DIGITAL_CMD_SEL_REQ_CL1;
-- 
cgit 


From 180106bd074aad4b00a0dc6a6fc414c386a27195 Mon Sep 17 00:00:00 2001
From: Fengguang Wu <fengguang.wu@intel.com>
Date: Fri, 20 Sep 2013 17:08:08 +0200
Subject: NFC: digital: digital_tg_send_sensf_res() can be static

Fixes sparse hint:

net/nfc/digital_technology.c:640:5: sparse: symbol 'digital_tg_send_sensf_res'
was not declared. Should it be static?

Cc: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 net/nfc/digital_technology.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/nfc/digital_technology.c b/net/nfc/digital_technology.c
index bcdb73eaf945..f5dd8cfad404 100644
--- a/net/nfc/digital_technology.c
+++ b/net/nfc/digital_technology.c
@@ -637,7 +637,7 @@ exit:
 	dev_kfree_skb(resp);
 }
 
-int digital_tg_send_sensf_res(struct nfc_digital_dev *ddev,
+static int digital_tg_send_sensf_res(struct nfc_digital_dev *ddev,
 			      struct digital_sensf_req *sensf_req)
 {
 	struct sk_buff *skb;
-- 
cgit 


From 4b7449cdf4280298d65afd4921b5030fc93a19a1 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 14:30:40 +0530
Subject: NFC: nfcwilink: Remove redundant dev_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Cc: Ilan Elias <ilane@ti.com>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/nfc/nfcwilink.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/nfc/nfcwilink.c b/drivers/nfc/nfcwilink.c
index 0c79921b3870..71308645593f 100644
--- a/drivers/nfc/nfcwilink.c
+++ b/drivers/nfc/nfcwilink.c
@@ -559,8 +559,6 @@ static int nfcwilink_remove(struct platform_device *pdev)
 	nci_unregister_device(ndev);
 	nci_free_device(ndev);
 
-	dev_set_drvdata(&pdev->dev, NULL);
-
 	return 0;
 }
 
-- 
cgit 


From e44666b98111e64efae974c3e91357d991dba0ca Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 14:30:41 +0530
Subject: NFC: pn533: Staticize local symbols

Local symbols used only in this file are made static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/nfc/pn533.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index dbe962c47a56..75bffd8bb3eb 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -2905,12 +2905,12 @@ static int pn533_rf_field(struct nfc_dev *nfc_dev, u8 rf)
 	return rc;
 }
 
-int pn533_dev_up(struct nfc_dev *nfc_dev)
+static int pn533_dev_up(struct nfc_dev *nfc_dev)
 {
 	return pn533_rf_field(nfc_dev, 1);
 }
 
-int pn533_dev_down(struct nfc_dev *nfc_dev)
+static int pn533_dev_down(struct nfc_dev *nfc_dev)
 {
 	return pn533_rf_field(nfc_dev, 0);
 }
-- 
cgit 


From 4cf7e032960a945f813784a68bf0b982a4035bf9 Mon Sep 17 00:00:00 2001
From: Thierry Escande <thierry.escande@linux.intel.com>
Date: Wed, 10 Jul 2013 10:55:37 +0200
Subject: NFC: rawsock: Fix a memory leak

In the rawsock data exchange callback, the sk_buff is not freed
on error.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 net/nfc/rawsock.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/net/nfc/rawsock.c b/net/nfc/rawsock.c
index 313bf1bc848a..cd958b381f96 100644
--- a/net/nfc/rawsock.c
+++ b/net/nfc/rawsock.c
@@ -142,11 +142,11 @@ static void rawsock_data_exchange_complete(void *context, struct sk_buff *skb,
 
 	err = rawsock_add_header(skb);
 	if (err)
-		goto error;
+		goto error_skb;
 
 	err = sock_queue_rcv_skb(sk, skb);
 	if (err)
-		goto error;
+		goto error_skb;
 
 	spin_lock_bh(&sk->sk_write_queue.lock);
 	if (!skb_queue_empty(&sk->sk_write_queue))
@@ -158,6 +158,9 @@ static void rawsock_data_exchange_complete(void *context, struct sk_buff *skb,
 	sock_put(sk);
 	return;
 
+error_skb:
+	kfree_skb(skb);
+
 error:
 	rawsock_report_error(sk, err);
 	sock_put(sk);
-- 
cgit 


From 13292c9a1ed92e535caae6154db1fea7993777ad Mon Sep 17 00:00:00 2001
From: Thierry Escande <thierry.escande@linux.intel.com>
Date: Tue, 24 Sep 2013 11:47:34 +0200
Subject: NFC: digital: Fix sens_res endiannes handling

This was triggered by the following sparse warning:

net/nfc/digital_technology.c:272:20: sparse: cast to restricted __be16

The SENS_RES response must be treated as __le16 with the first byte
received as LSB and the second one as MSB. This is the way neard
handles it in the sens_res field of the nfc_target structure which is
treated as u16 in cpu endianness. So le16_to_cpu() is used on the
received SENS_RES instead of memcpy'ing it.

SENS_RES test macros have also been fixed accordingly.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 net/nfc/digital_technology.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/net/nfc/digital_technology.c b/net/nfc/digital_technology.c
index f5dd8cfad404..251c8c753ebe 100644
--- a/net/nfc/digital_technology.c
+++ b/net/nfc/digital_technology.c
@@ -32,10 +32,10 @@
 #define DIGITAL_SEL_RES_IS_T2T(sel_res) (!((sel_res) & 0x60))
 #define DIGITAL_SEL_RES_IS_NFC_DEP(sel_res) ((sel_res) & 0x40)
 
-#define DIGITAL_SENS_RES_IS_T1T(sens_res) (((sens_res) & 0x000C) == 0x000C)
+#define DIGITAL_SENS_RES_IS_T1T(sens_res) (((sens_res) & 0x0C00) == 0x0C00)
 #define DIGITAL_SENS_RES_IS_VALID(sens_res) \
-	((!((sens_res) & 0x1F00) && (((sens_res) & 0x000C) == 0x000C)) || \
-	(((sens_res) & 0x1F00) && ((sens_res) & 0x000C) != 0x000C))
+	((!((sens_res) & 0x001F) && (((sens_res) & 0x0C00) == 0x0C00)) || \
+	(((sens_res) & 0x001F) && ((sens_res) & 0x0C00) != 0x0C00))
 
 #define DIGITAL_MIFARE_READ_RES_LEN 16
 #define DIGITAL_MIFARE_ACK_RES	0x0A
@@ -280,7 +280,6 @@ static void digital_in_recv_sens_res(struct nfc_digital_dev *ddev, void *arg,
 				     struct sk_buff *resp)
 {
 	struct nfc_target *target = NULL;
-	u16 sens_res;
 	int rc;
 
 	if (IS_ERR(resp)) {
@@ -300,17 +299,15 @@ static void digital_in_recv_sens_res(struct nfc_digital_dev *ddev, void *arg,
 		goto exit;
 	}
 
-	memcpy(&target->sens_res, resp->data, sizeof(u16));
+	target->sens_res = __le16_to_cpu(*(__le16 *)resp->data);
 
-	sens_res = be16_to_cpu(target->sens_res);
-
-	if (!DIGITAL_SENS_RES_IS_VALID(sens_res)) {
+	if (!DIGITAL_SENS_RES_IS_VALID(target->sens_res)) {
 		PROTOCOL_ERR("4.6.3.3");
 		rc = -EINVAL;
 		goto exit;
 	}
 
-	if (DIGITAL_SENS_RES_IS_T1T(sens_res))
+	if (DIGITAL_SENS_RES_IS_T1T(target->sens_res))
 		rc = digital_target_found(ddev, target, NFC_PROTO_JEWEL);
 	else
 		rc = digital_in_send_sdd_req(ddev, target);
-- 
cgit 


From b9c0c678f7267831b73e1d73fb30c9b4658e91ec Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Tue, 24 Sep 2013 12:40:44 +0200
Subject: NFC: Document NFC targets sens_res field

SENS_RES has no specific endiannes attached to it, the kernel ABI is the
following one: Byte 2 (As described by the NFC Forum Digital spec) is
the u16 most significant byte.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 include/net/nfc/nfc.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/net/nfc/nfc.h b/include/net/nfc/nfc.h
index c2aee4875b65..5329804ebb70 100644
--- a/include/net/nfc/nfc.h
+++ b/include/net/nfc/nfc.h
@@ -85,6 +85,14 @@ struct nfc_ops {
 #define NFC_MAX_GT_LEN 48
 #define NFC_ATR_RES_GT_OFFSET 15
 
+/**
+ * struct nfc_target - NFC target descriptiom
+ *
+ * @sens_res: 2 bytes describing the target SENS_RES response, if the target
+ *	is a type A one. The %sens_res most significant byte must be byte 2
+ *	as described by the NFC Forum digital specification (i.e. the platform
+ *	configuration one) while %sens_res least significant byte is byte 1.
+ */
 struct nfc_target {
 	u32 idx;
 	u32 supported_protocols;
-- 
cgit 


From 72b70b6ec4fa7da86a3ac0aacee699b18d94fc3b Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Wed, 28 Aug 2013 00:39:48 +0200
Subject: NFC: Define secure element IO API and commands

In order to send and receive ISO7816 APDUs to and from NFC embedded
secure elements, we define a specific netlink command.
On a typical SE use case, host applications will send very few APDUs
(Less than 10) per transaction. This is why we decided to go for a
simple netlink API. Defining another NFC socket protocol for such low
traffic would have been overengineered.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 include/net/nfc/nfc.h    | 5 +++++
 include/uapi/linux/nfc.h | 4 ++++
 2 files changed, 9 insertions(+)

diff --git a/include/net/nfc/nfc.h b/include/net/nfc/nfc.h
index 5329804ebb70..82fc4e43fc6e 100644
--- a/include/net/nfc/nfc.h
+++ b/include/net/nfc/nfc.h
@@ -53,6 +53,8 @@ struct nfc_dev;
 typedef void (*data_exchange_cb_t)(void *context, struct sk_buff *skb,
 								int err);
 
+typedef void (*se_io_cb_t)(void *context, u8 *apdu, size_t apdu_len, int err);
+
 struct nfc_target;
 
 struct nfc_ops {
@@ -79,6 +81,9 @@ struct nfc_ops {
 	int (*discover_se)(struct nfc_dev *dev);
 	int (*enable_se)(struct nfc_dev *dev, u32 se_idx);
 	int (*disable_se)(struct nfc_dev *dev, u32 se_idx);
+	int (*se_io) (struct nfc_dev *dev, u32 se_idx,
+		      u8 *apdu, size_t apdu_length,
+		      se_io_cb_t cb, void *cb_context);
 };
 
 #define NFC_TARGET_IDX_ANY -1
diff --git a/include/uapi/linux/nfc.h b/include/uapi/linux/nfc.h
index 29bed72a4ac4..6ad6cc03ccd3 100644
--- a/include/uapi/linux/nfc.h
+++ b/include/uapi/linux/nfc.h
@@ -85,6 +85,7 @@
  *	a specific SE notifies us about the end of a transaction. The parameter
  *	for this event is the application ID (AID).
  * @NFC_CMD_GET_SE: Dump all discovered secure elements from an NFC controller.
+ * @NFC_CMD_SE_IO: Send/Receive APDUs to/from the selected secure element.
  */
 enum nfc_commands {
 	NFC_CMD_UNSPEC,
@@ -114,6 +115,7 @@ enum nfc_commands {
 	NFC_EVENT_SE_CONNECTIVITY,
 	NFC_EVENT_SE_TRANSACTION,
 	NFC_CMD_GET_SE,
+	NFC_CMD_SE_IO,
 /* private: internal use only */
 	__NFC_CMD_AFTER_LAST
 };
@@ -147,6 +149,7 @@ enum nfc_commands {
  * @NFC_ATTR_SE_INDEX: Secure element index
  * @NFC_ATTR_SE_TYPE: Secure element type (UICC or EMBEDDED)
  * @NFC_ATTR_FIRMWARE_DOWNLOAD_STATUS: Firmware download operation status
+ * @NFC_ATTR_APDU: Secure element APDU
  */
 enum nfc_attrs {
 	NFC_ATTR_UNSPEC,
@@ -174,6 +177,7 @@ enum nfc_attrs {
 	NFC_ATTR_SE_TYPE,
 	NFC_ATTR_SE_AID,
 	NFC_ATTR_FIRMWARE_DOWNLOAD_STATUS,
+	NFC_ATTR_SE_APDU,
 /* private: internal use only */
 	__NFC_ATTR_AFTER_LAST
 };
-- 
cgit 


From 9bd91f3c00bd8dd54339499a9253b31c6bac7c7b Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: brcm80211: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/dhd.h      |  30 +-
 drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h  |  27 +-
 .../net/wireless/brcm80211/brcmfmac/dhd_proto.h    |  12 +-
 .../net/wireless/brcm80211/brcmfmac/sdio_chip.h    |  23 +-
 .../net/wireless/brcm80211/brcmfmac/sdio_host.h    |  92 +++--
 drivers/net/wireless/brcm80211/brcmsmac/aiutils.h  |  18 +-
 drivers/net/wireless/brcm80211/brcmsmac/ampdu.h    |  22 +-
 drivers/net/wireless/brcm80211/brcmsmac/antsel.h   |  14 +-
 drivers/net/wireless/brcm80211/brcmsmac/channel.h  |  20 +-
 .../net/wireless/brcm80211/brcmsmac/mac80211_if.h  |  38 +--
 drivers/net/wireless/brcm80211/brcmsmac/main.h     | 110 +++---
 .../net/wireless/brcm80211/brcmsmac/phy/phy_hal.h  | 219 ++++++------
 .../net/wireless/brcm80211/brcmsmac/phy/phy_int.h  | 371 ++++++++++-----------
 drivers/net/wireless/brcm80211/brcmsmac/phy_shim.h |  91 +++--
 drivers/net/wireless/brcm80211/brcmsmac/pmu.h      |   4 +-
 drivers/net/wireless/brcm80211/brcmsmac/pub.h      | 145 ++++----
 drivers/net/wireless/brcm80211/brcmsmac/rate.h     |  48 ++-
 drivers/net/wireless/brcm80211/brcmsmac/stf.h      |  31 +-
 .../net/wireless/brcm80211/brcmsmac/ucode_loader.h |  16 +-
 drivers/net/wireless/brcm80211/include/brcmu_d11.h |   2 +-
 .../net/wireless/brcm80211/include/brcmu_utils.h   |  44 ++-
 21 files changed, 644 insertions(+), 733 deletions(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd.h
index 2eb9e642c9bf..34af9d183107 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd.h
@@ -632,29 +632,29 @@ struct brcmf_skb_reorder_data {
 	u8 *reorder;
 };
 
-extern int brcmf_netdev_wait_pend8021x(struct net_device *ndev);
+int brcmf_netdev_wait_pend8021x(struct net_device *ndev);
 
 /* Return pointer to interface name */
-extern char *brcmf_ifname(struct brcmf_pub *drvr, int idx);
+char *brcmf_ifname(struct brcmf_pub *drvr, int idx);
 
 /* Query dongle */
-extern int brcmf_proto_cdc_query_dcmd(struct brcmf_pub *drvr, int ifidx,
-				       uint cmd, void *buf, uint len);
-extern int brcmf_proto_cdc_set_dcmd(struct brcmf_pub *drvr, int ifidx, uint cmd,
-				    void *buf, uint len);
+int brcmf_proto_cdc_query_dcmd(struct brcmf_pub *drvr, int ifidx, uint cmd,
+			       void *buf, uint len);
+int brcmf_proto_cdc_set_dcmd(struct brcmf_pub *drvr, int ifidx, uint cmd,
+			     void *buf, uint len);
 
 /* Remove any protocol-specific data header. */
-extern int brcmf_proto_hdrpull(struct brcmf_pub *drvr, bool do_fws, u8 *ifidx,
-			       struct sk_buff *rxp);
+int brcmf_proto_hdrpull(struct brcmf_pub *drvr, bool do_fws, u8 *ifidx,
+			struct sk_buff *rxp);
 
-extern int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked);
-extern struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bssidx,
-				     s32 ifidx, char *name, u8 *mac_addr);
-extern void brcmf_del_if(struct brcmf_pub *drvr, s32 bssidx);
+int brcmf_net_attach(struct brcmf_if *ifp, bool rtnl_locked);
+struct brcmf_if *brcmf_add_if(struct brcmf_pub *drvr, s32 bssidx, s32 ifidx,
+			      char *name, u8 *mac_addr);
+void brcmf_del_if(struct brcmf_pub *drvr, s32 bssidx);
 void brcmf_txflowblock_if(struct brcmf_if *ifp,
 			  enum brcmf_netif_stop_reason reason, bool state);
-extern u32 brcmf_get_chip_info(struct brcmf_if *ifp);
-extern void brcmf_txfinalize(struct brcmf_pub *drvr, struct sk_buff *txp,
-			     bool success);
+u32 brcmf_get_chip_info(struct brcmf_if *ifp);
+void brcmf_txfinalize(struct brcmf_pub *drvr, struct sk_buff *txp,
+		      bool success);
 
 #endif				/* _BRCMF_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
index f7c1985844e4..5bc02768587a 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
@@ -132,34 +132,33 @@ struct pktq *brcmf_bus_gettxq(struct brcmf_bus *bus)
  * interface functions from common layer
  */
 
-extern bool brcmf_c_prec_enq(struct device *dev, struct pktq *q,
-			 struct sk_buff *pkt, int prec);
+bool brcmf_c_prec_enq(struct device *dev, struct pktq *q, struct sk_buff *pkt,
+		      int prec);
 
 /* Receive frame for delivery to OS.  Callee disposes of rxp. */
-extern void brcmf_rx_frames(struct device *dev, struct sk_buff_head *rxlist);
+void brcmf_rx_frames(struct device *dev, struct sk_buff_head *rxlist);
 
 /* Indication from bus module regarding presence/insertion of dongle. */
-extern int brcmf_attach(uint bus_hdrlen, struct device *dev);
+int brcmf_attach(uint bus_hdrlen, struct device *dev);
 /* Indication from bus module regarding removal/absence of dongle */
-extern void brcmf_detach(struct device *dev);
+void brcmf_detach(struct device *dev);
 /* Indication from bus module that dongle should be reset */
-extern void brcmf_dev_reset(struct device *dev);
+void brcmf_dev_reset(struct device *dev);
 /* Indication from bus module to change flow-control state */
-extern void brcmf_txflowblock(struct device *dev, bool state);
+void brcmf_txflowblock(struct device *dev, bool state);
 
 /* Notify the bus has transferred the tx packet to firmware */
-extern void brcmf_txcomplete(struct device *dev, struct sk_buff *txp,
-			     bool success);
+void brcmf_txcomplete(struct device *dev, struct sk_buff *txp, bool success);
 
-extern int brcmf_bus_start(struct device *dev);
+int brcmf_bus_start(struct device *dev);
 
 #ifdef CONFIG_BRCMFMAC_SDIO
-extern void brcmf_sdio_exit(void);
-extern void brcmf_sdio_init(void);
+void brcmf_sdio_exit(void);
+void brcmf_sdio_init(void);
 #endif
 #ifdef CONFIG_BRCMFMAC_USB
-extern void brcmf_usb_exit(void);
-extern void brcmf_usb_init(void);
+void brcmf_usb_exit(void);
+void brcmf_usb_init(void);
 #endif
 
 #endif				/* _BRCMF_BUS_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_proto.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd_proto.h
index ef9179883748..53c6e710f2cb 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_proto.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_proto.h
@@ -22,21 +22,21 @@
  */
 
 /* Linkage, sets prot link and updates hdrlen in pub */
-extern int brcmf_proto_attach(struct brcmf_pub *drvr);
+int brcmf_proto_attach(struct brcmf_pub *drvr);
 
 /* Unlink, frees allocated protocol memory (including brcmf_proto) */
-extern void brcmf_proto_detach(struct brcmf_pub *drvr);
+void brcmf_proto_detach(struct brcmf_pub *drvr);
 
 /* Stop protocol: sync w/dongle state. */
-extern void brcmf_proto_stop(struct brcmf_pub *drvr);
+void brcmf_proto_stop(struct brcmf_pub *drvr);
 
 /* Add any protocol-specific data header.
  * Caller must reserve prot_hdrlen prepend space.
  */
-extern void brcmf_proto_hdrpush(struct brcmf_pub *, int ifidx, u8 offset,
-				struct sk_buff *txp);
+void brcmf_proto_hdrpush(struct brcmf_pub *, int ifidx, u8 offset,
+			 struct sk_buff *txp);
 
 /* Sets dongle media info (drv_version, mac address). */
-extern int brcmf_c_preinit_dcmds(struct brcmf_if *ifp);
+int brcmf_c_preinit_dcmds(struct brcmf_if *ifp);
 
 #endif				/* _BRCMF_PROTO_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.h b/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.h
index 83c041f1bf4a..f0780ee05602 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.h
@@ -215,17 +215,16 @@ struct sdpcmd_regs {
 	u16 PAD[0x80];
 };
 
-extern int brcmf_sdio_chip_attach(struct brcmf_sdio_dev *sdiodev,
-				  struct chip_info **ci_ptr, u32 regs);
-extern void brcmf_sdio_chip_detach(struct chip_info **ci_ptr);
-extern void brcmf_sdio_chip_drivestrengthinit(struct brcmf_sdio_dev *sdiodev,
-					      struct chip_info *ci,
-					      u32 drivestrength);
-extern u8 brcmf_sdio_chip_getinfidx(struct chip_info *ci, u16 coreid);
-extern void brcmf_sdio_chip_enter_download(struct brcmf_sdio_dev *sdiodev,
-					   struct chip_info *ci);
-extern bool brcmf_sdio_chip_exit_download(struct brcmf_sdio_dev *sdiodev,
-					  struct chip_info *ci, char *nvram_dat,
-					  uint nvram_sz);
+int brcmf_sdio_chip_attach(struct brcmf_sdio_dev *sdiodev,
+			   struct chip_info **ci_ptr, u32 regs);
+void brcmf_sdio_chip_detach(struct chip_info **ci_ptr);
+void brcmf_sdio_chip_drivestrengthinit(struct brcmf_sdio_dev *sdiodev,
+				       struct chip_info *ci, u32 drivestrength);
+u8 brcmf_sdio_chip_getinfidx(struct chip_info *ci, u16 coreid);
+void brcmf_sdio_chip_enter_download(struct brcmf_sdio_dev *sdiodev,
+				    struct chip_info *ci);
+bool brcmf_sdio_chip_exit_download(struct brcmf_sdio_dev *sdiodev,
+				   struct chip_info *ci, char *nvram_dat,
+				   uint nvram_sz);
 
 #endif		/* _BRCMFMAC_SDIO_CHIP_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
index 2b5407f002e5..c9b06b4e71f7 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
@@ -181,18 +181,18 @@ struct brcmf_sdio_dev {
 };
 
 /* Register/deregister interrupt handler. */
-extern int brcmf_sdio_intr_register(struct brcmf_sdio_dev *sdiodev);
-extern int brcmf_sdio_intr_unregister(struct brcmf_sdio_dev *sdiodev);
+int brcmf_sdio_intr_register(struct brcmf_sdio_dev *sdiodev);
+int brcmf_sdio_intr_unregister(struct brcmf_sdio_dev *sdiodev);
 
 /* sdio device register access interface */
-extern u8 brcmf_sdio_regrb(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret);
-extern u32 brcmf_sdio_regrl(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret);
-extern void brcmf_sdio_regwb(struct brcmf_sdio_dev *sdiodev, u32 addr,
-			     u8 data, int *ret);
-extern void brcmf_sdio_regwl(struct brcmf_sdio_dev *sdiodev, u32 addr,
-			     u32 data, int *ret);
-extern int brcmf_sdio_regrw_helper(struct brcmf_sdio_dev *sdiodev, u32 addr,
-				   void *data, bool write);
+u8 brcmf_sdio_regrb(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret);
+u32 brcmf_sdio_regrl(struct brcmf_sdio_dev *sdiodev, u32 addr, int *ret);
+void brcmf_sdio_regwb(struct brcmf_sdio_dev *sdiodev, u32 addr, u8 data,
+		      int *ret);
+void brcmf_sdio_regwl(struct brcmf_sdio_dev *sdiodev, u32 addr, u32 data,
+		      int *ret);
+int brcmf_sdio_regrw_helper(struct brcmf_sdio_dev *sdiodev, u32 addr,
+			    void *data, bool write);
 
 /* Buffer transfer to/from device (client) core via cmd53.
  *   fn:       function number
@@ -206,22 +206,17 @@ extern int brcmf_sdio_regrw_helper(struct brcmf_sdio_dev *sdiodev, u32 addr,
  * Returns 0 or error code.
  * NOTE: Async operation is not currently supported.
  */
-extern int
-brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
-		      uint flags, struct sk_buff_head *pktq);
-extern int
-brcmf_sdcard_send_buf(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
-		      uint flags, u8 *buf, uint nbytes);
-
-extern int
-brcmf_sdcard_recv_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
-		      uint flags, struct sk_buff *pkt);
-extern int
-brcmf_sdcard_recv_buf(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
-		      uint flags, u8 *buf, uint nbytes);
-extern int
-brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
-			uint flags, struct sk_buff_head *pktq);
+int brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
+			  uint flags, struct sk_buff_head *pktq);
+int brcmf_sdcard_send_buf(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
+			  uint flags, u8 *buf, uint nbytes);
+
+int brcmf_sdcard_recv_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
+			  uint flags, struct sk_buff *pkt);
+int brcmf_sdcard_recv_buf(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
+			  uint flags, u8 *buf, uint nbytes);
+int brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
+			    uint flags, struct sk_buff_head *pktq);
 
 /* Flags bits */
 
@@ -237,46 +232,43 @@ brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
  *   nbytes:   number of bytes to transfer to/from buf
  * Returns 0 or error code.
  */
-extern int brcmf_sdcard_rwdata(struct brcmf_sdio_dev *sdiodev, uint rw,
-			       u32 addr, u8 *buf, uint nbytes);
-extern int brcmf_sdio_ramrw(struct brcmf_sdio_dev *sdiodev, bool write,
-			    u32 address, u8 *data, uint size);
+int brcmf_sdcard_rwdata(struct brcmf_sdio_dev *sdiodev, uint rw, u32 addr,
+			u8 *buf, uint nbytes);
+int brcmf_sdio_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address,
+		     u8 *data, uint size);
 
 /* Issue an abort to the specified function */
-extern int brcmf_sdcard_abort(struct brcmf_sdio_dev *sdiodev, uint fn);
+int brcmf_sdcard_abort(struct brcmf_sdio_dev *sdiodev, uint fn);
 
 /* platform specific/high level functions */
-extern int brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev);
-extern int brcmf_sdio_remove(struct brcmf_sdio_dev *sdiodev);
+int brcmf_sdio_probe(struct brcmf_sdio_dev *sdiodev);
+int brcmf_sdio_remove(struct brcmf_sdio_dev *sdiodev);
 
 /* attach, return handler on success, NULL if failed.
  *  The handler shall be provided by all subsequent calls. No local cache
  *  cfghdl points to the starting address of pci device mapped memory
  */
-extern int brcmf_sdioh_attach(struct brcmf_sdio_dev *sdiodev);
-extern void brcmf_sdioh_detach(struct brcmf_sdio_dev *sdiodev);
+int brcmf_sdioh_attach(struct brcmf_sdio_dev *sdiodev);
+void brcmf_sdioh_detach(struct brcmf_sdio_dev *sdiodev);
 
 /* read or write one byte using cmd52 */
-extern int brcmf_sdioh_request_byte(struct brcmf_sdio_dev *sdiodev, uint rw,
-				    uint fnc, uint addr, u8 *byte);
+int brcmf_sdioh_request_byte(struct brcmf_sdio_dev *sdiodev, uint rw, uint fnc,
+			     uint addr, u8 *byte);
 
 /* read or write 2/4 bytes using cmd53 */
-extern int
-brcmf_sdioh_request_word(struct brcmf_sdio_dev *sdiodev,
-			 uint rw, uint fnc, uint addr,
-			 u32 *word, uint nbyte);
+int brcmf_sdioh_request_word(struct brcmf_sdio_dev *sdiodev, uint rw, uint fnc,
+			     uint addr, u32 *word, uint nbyte);
 
 /* Watchdog timer interface for pm ops */
-extern void brcmf_sdio_wdtmr_enable(struct brcmf_sdio_dev *sdiodev,
-				    bool enable);
+void brcmf_sdio_wdtmr_enable(struct brcmf_sdio_dev *sdiodev, bool enable);
 
-extern void *brcmf_sdbrcm_probe(u32 regsva, struct brcmf_sdio_dev *sdiodev);
-extern void brcmf_sdbrcm_disconnect(void *ptr);
-extern void brcmf_sdbrcm_isr(void *arg);
+void *brcmf_sdbrcm_probe(u32 regsva, struct brcmf_sdio_dev *sdiodev);
+void brcmf_sdbrcm_disconnect(void *ptr);
+void brcmf_sdbrcm_isr(void *arg);
 
-extern void brcmf_sdbrcm_wd_timer(struct brcmf_sdio *bus, uint wdtick);
+void brcmf_sdbrcm_wd_timer(struct brcmf_sdio *bus, uint wdtick);
 
-extern void brcmf_pm_resume_wait(struct brcmf_sdio_dev *sdiodev,
-				 wait_queue_head_t *wq);
-extern bool brcmf_pm_resume_error(struct brcmf_sdio_dev *sdiodev);
+void brcmf_pm_resume_wait(struct brcmf_sdio_dev *sdiodev,
+			  wait_queue_head_t *wq);
+bool brcmf_pm_resume_error(struct brcmf_sdio_dev *sdiodev);
 #endif				/* _BRCM_SDH_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/aiutils.h b/drivers/net/wireless/brcm80211/brcmsmac/aiutils.h
index a8a267b5b87a..2d08c155c23b 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/aiutils.h
+++ b/drivers/net/wireless/brcm80211/brcmsmac/aiutils.h
@@ -172,19 +172,19 @@ struct si_info {
 
 
 /* AMBA Interconnect exported externs */
-extern u32 ai_core_cflags(struct bcma_device *core, u32 mask, u32 val);
+u32 ai_core_cflags(struct bcma_device *core, u32 mask, u32 val);
 
 /* === exported functions === */
-extern struct si_pub *ai_attach(struct bcma_bus *pbus);
-extern void ai_detach(struct si_pub *sih);
-extern uint ai_cc_reg(struct si_pub *sih, uint regoff, u32 mask, u32 val);
-extern void ai_clkctl_init(struct si_pub *sih);
-extern u16 ai_clkctl_fast_pwrup_delay(struct si_pub *sih);
-extern bool ai_clkctl_cc(struct si_pub *sih, enum bcma_clkmode mode);
-extern bool ai_deviceremoved(struct si_pub *sih);
+struct si_pub *ai_attach(struct bcma_bus *pbus);
+void ai_detach(struct si_pub *sih);
+uint ai_cc_reg(struct si_pub *sih, uint regoff, u32 mask, u32 val);
+void ai_clkctl_init(struct si_pub *sih);
+u16 ai_clkctl_fast_pwrup_delay(struct si_pub *sih);
+bool ai_clkctl_cc(struct si_pub *sih, enum bcma_clkmode mode);
+bool ai_deviceremoved(struct si_pub *sih);
 
 /* Enable Ex-PA for 4313 */
-extern void ai_epa_4313war(struct si_pub *sih);
+void ai_epa_4313war(struct si_pub *sih);
 
 static inline u32 ai_get_cccaps(struct si_pub *sih)
 {
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/ampdu.h b/drivers/net/wireless/brcm80211/brcmsmac/ampdu.h
index 73d01e586109..03bdcf29bd50 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/ampdu.h
+++ b/drivers/net/wireless/brcm80211/brcmsmac/ampdu.h
@@ -37,17 +37,17 @@ struct brcms_ampdu_session {
 	u16 dma_len;
 };
 
-extern void brcms_c_ampdu_reset_session(struct brcms_ampdu_session *session,
-					struct brcms_c_info *wlc);
-extern int brcms_c_ampdu_add_frame(struct brcms_ampdu_session *session,
-				   struct sk_buff *p);
-extern void brcms_c_ampdu_finalize(struct brcms_ampdu_session *session);
+void brcms_c_ampdu_reset_session(struct brcms_ampdu_session *session,
+				 struct brcms_c_info *wlc);
+int brcms_c_ampdu_add_frame(struct brcms_ampdu_session *session,
+			    struct sk_buff *p);
+void brcms_c_ampdu_finalize(struct brcms_ampdu_session *session);
 
-extern struct ampdu_info *brcms_c_ampdu_attach(struct brcms_c_info *wlc);
-extern void brcms_c_ampdu_detach(struct ampdu_info *ampdu);
-extern void brcms_c_ampdu_dotxstatus(struct ampdu_info *ampdu, struct scb *scb,
-				 struct sk_buff *p, struct tx_status *txs);
-extern void brcms_c_ampdu_macaddr_upd(struct brcms_c_info *wlc);
-extern void brcms_c_ampdu_shm_upd(struct ampdu_info *ampdu);
+struct ampdu_info *brcms_c_ampdu_attach(struct brcms_c_info *wlc);
+void brcms_c_ampdu_detach(struct ampdu_info *ampdu);
+void brcms_c_ampdu_dotxstatus(struct ampdu_info *ampdu, struct scb *scb,
+			      struct sk_buff *p, struct tx_status *txs);
+void brcms_c_ampdu_macaddr_upd(struct brcms_c_info *wlc);
+void brcms_c_ampdu_shm_upd(struct ampdu_info *ampdu);
 
 #endif				/* _BRCM_AMPDU_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/antsel.h b/drivers/net/wireless/brcm80211/brcmsmac/antsel.h
index 97ea3881a8ec..a3d487ab1964 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/antsel.h
+++ b/drivers/net/wireless/brcm80211/brcmsmac/antsel.h
@@ -17,13 +17,11 @@
 #ifndef _BRCM_ANTSEL_H_
 #define _BRCM_ANTSEL_H_
 
-extern struct antsel_info *brcms_c_antsel_attach(struct brcms_c_info *wlc);
-extern void brcms_c_antsel_detach(struct antsel_info *asi);
-extern void brcms_c_antsel_init(struct antsel_info *asi);
-extern void brcms_c_antsel_antcfg_get(struct antsel_info *asi, bool usedef,
-				  bool sel,
-				  u8 id, u8 fbid, u8 *antcfg,
-				  u8 *fbantcfg);
-extern u8 brcms_c_antsel_antsel2id(struct antsel_info *asi, u16 antsel);
+struct antsel_info *brcms_c_antsel_attach(struct brcms_c_info *wlc);
+void brcms_c_antsel_detach(struct antsel_info *asi);
+void brcms_c_antsel_init(struct antsel_info *asi);
+void brcms_c_antsel_antcfg_get(struct antsel_info *asi, bool usedef, bool sel,
+			       u8 id, u8 fbid, u8 *antcfg, u8 *fbantcfg);
+u8 brcms_c_antsel_antsel2id(struct antsel_info *asi, u16 antsel);
 
 #endif /* _BRCM_ANTSEL_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/channel.h b/drivers/net/wireless/brcm80211/brcmsmac/channel.h
index 006483a0abe6..39dd3a5b2979 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/channel.h
+++ b/drivers/net/wireless/brcm80211/brcmsmac/channel.h
@@ -32,20 +32,16 @@
 
 #define BRCMS_DFS_EU (BRCMS_DFS_TPC | BRCMS_RADAR_TYPE_EU) /* Flag for DFS EU */
 
-extern struct brcms_cm_info *
-brcms_c_channel_mgr_attach(struct brcms_c_info *wlc);
+struct brcms_cm_info *brcms_c_channel_mgr_attach(struct brcms_c_info *wlc);
 
-extern void brcms_c_channel_mgr_detach(struct brcms_cm_info *wlc_cm);
+void brcms_c_channel_mgr_detach(struct brcms_cm_info *wlc_cm);
 
-extern bool brcms_c_valid_chanspec_db(struct brcms_cm_info *wlc_cm,
-				      u16 chspec);
+bool brcms_c_valid_chanspec_db(struct brcms_cm_info *wlc_cm, u16 chspec);
 
-extern void brcms_c_channel_reg_limits(struct brcms_cm_info *wlc_cm,
-				   u16 chanspec,
-				   struct txpwr_limits *txpwr);
-extern void brcms_c_channel_set_chanspec(struct brcms_cm_info *wlc_cm,
-				     u16 chanspec,
-				     u8 local_constraint_qdbm);
-extern void brcms_c_regd_init(struct brcms_c_info *wlc);
+void brcms_c_channel_reg_limits(struct brcms_cm_info *wlc_cm, u16 chanspec,
+				struct txpwr_limits *txpwr);
+void brcms_c_channel_set_chanspec(struct brcms_cm_info *wlc_cm, u16 chanspec,
+				  u8 local_constraint_qdbm);
+void brcms_c_regd_init(struct brcms_c_info *wlc);
 
 #endif				/* _WLC_CHANNEL_H */
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.h b/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.h
index 4090032e81a2..198053dfc310 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.h
+++ b/drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.h
@@ -88,26 +88,26 @@ struct brcms_info {
 };
 
 /* misc callbacks */
-extern void brcms_init(struct brcms_info *wl);
-extern uint brcms_reset(struct brcms_info *wl);
-extern void brcms_intrson(struct brcms_info *wl);
-extern u32 brcms_intrsoff(struct brcms_info *wl);
-extern void brcms_intrsrestore(struct brcms_info *wl, u32 macintmask);
-extern int brcms_up(struct brcms_info *wl);
-extern void brcms_down(struct brcms_info *wl);
-extern void brcms_txflowcontrol(struct brcms_info *wl, struct brcms_if *wlif,
-				bool state, int prio);
-extern bool brcms_rfkill_set_hw_state(struct brcms_info *wl);
+void brcms_init(struct brcms_info *wl);
+uint brcms_reset(struct brcms_info *wl);
+void brcms_intrson(struct brcms_info *wl);
+u32 brcms_intrsoff(struct brcms_info *wl);
+void brcms_intrsrestore(struct brcms_info *wl, u32 macintmask);
+int brcms_up(struct brcms_info *wl);
+void brcms_down(struct brcms_info *wl);
+void brcms_txflowcontrol(struct brcms_info *wl, struct brcms_if *wlif,
+			 bool state, int prio);
+bool brcms_rfkill_set_hw_state(struct brcms_info *wl);
 
 /* timer functions */
-extern struct brcms_timer *brcms_init_timer(struct brcms_info *wl,
-				      void (*fn) (void *arg), void *arg,
-				      const char *name);
-extern void brcms_free_timer(struct brcms_timer *timer);
-extern void brcms_add_timer(struct brcms_timer *timer, uint ms, int periodic);
-extern bool brcms_del_timer(struct brcms_timer *timer);
-extern void brcms_dpc(unsigned long data);
-extern void brcms_timer(struct brcms_timer *t);
-extern void brcms_fatal_error(struct brcms_info *wl);
+struct brcms_timer *brcms_init_timer(struct brcms_info *wl,
+				     void (*fn) (void *arg), void *arg,
+				     const char *name);
+void brcms_free_timer(struct brcms_timer *timer);
+void brcms_add_timer(struct brcms_timer *timer, uint ms, int periodic);
+bool brcms_del_timer(struct brcms_timer *timer);
+void brcms_dpc(unsigned long data);
+void brcms_timer(struct brcms_timer *t);
+void brcms_fatal_error(struct brcms_info *wl);
 
 #endif				/* _BRCM_MAC80211_IF_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/main.h b/drivers/net/wireless/brcm80211/brcmsmac/main.h
index b5d7a38b53fe..c4d135cff04a 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/main.h
+++ b/drivers/net/wireless/brcm80211/brcmsmac/main.h
@@ -616,66 +616,54 @@ struct brcms_bss_cfg {
 	struct brcms_bss_info *current_bss;
 };
 
-extern int brcms_c_txfifo(struct brcms_c_info *wlc, uint fifo,
-			   struct sk_buff *p);
-extern int brcms_b_xmtfifo_sz_get(struct brcms_hardware *wlc_hw, uint fifo,
-		   uint *blocks);
-
-extern int brcms_c_set_gmode(struct brcms_c_info *wlc, u8 gmode, bool config);
-extern void brcms_c_mac_promisc(struct brcms_c_info *wlc, uint filter_flags);
-extern u16 brcms_c_calc_lsig_len(struct brcms_c_info *wlc, u32 ratespec,
-				uint mac_len);
-extern u32 brcms_c_rspec_to_rts_rspec(struct brcms_c_info *wlc,
-					     u32 rspec,
-					     bool use_rspec, u16 mimo_ctlchbw);
-extern u16 brcms_c_compute_rtscts_dur(struct brcms_c_info *wlc, bool cts_only,
-				      u32 rts_rate,
-				      u32 frame_rate,
-				      u8 rts_preamble_type,
-				      u8 frame_preamble_type, uint frame_len,
-				      bool ba);
-extern void brcms_c_inval_dma_pkts(struct brcms_hardware *hw,
-			       struct ieee80211_sta *sta,
-			       void (*dma_callback_fn));
-extern void brcms_c_update_probe_resp(struct brcms_c_info *wlc, bool suspend);
-extern int brcms_c_set_nmode(struct brcms_c_info *wlc);
-extern void brcms_c_beacon_phytxctl_txant_upd(struct brcms_c_info *wlc,
-					  u32 bcn_rate);
-extern void brcms_b_antsel_type_set(struct brcms_hardware *wlc_hw,
-				     u8 antsel_type);
-extern void brcms_b_set_chanspec(struct brcms_hardware *wlc_hw,
-				  u16 chanspec,
-				  bool mute, struct txpwr_limits *txpwr);
-extern void brcms_b_write_shm(struct brcms_hardware *wlc_hw, uint offset,
-			      u16 v);
-extern u16 brcms_b_read_shm(struct brcms_hardware *wlc_hw, uint offset);
-extern void brcms_b_mhf(struct brcms_hardware *wlc_hw, u8 idx, u16 mask,
-			u16 val, int bands);
-extern void brcms_b_corereset(struct brcms_hardware *wlc_hw, u32 flags);
-extern void brcms_b_mctrl(struct brcms_hardware *wlc_hw, u32 mask, u32 val);
-extern void brcms_b_phy_reset(struct brcms_hardware *wlc_hw);
-extern void brcms_b_bw_set(struct brcms_hardware *wlc_hw, u16 bw);
-extern void brcms_b_core_phypll_reset(struct brcms_hardware *wlc_hw);
-extern void brcms_c_ucode_wake_override_set(struct brcms_hardware *wlc_hw,
-					u32 override_bit);
-extern void brcms_c_ucode_wake_override_clear(struct brcms_hardware *wlc_hw,
-					  u32 override_bit);
-extern void brcms_b_write_template_ram(struct brcms_hardware *wlc_hw,
-				       int offset, int len, void *buf);
-extern u16 brcms_b_rate_shm_offset(struct brcms_hardware *wlc_hw, u8 rate);
-extern void brcms_b_copyto_objmem(struct brcms_hardware *wlc_hw,
-				   uint offset, const void *buf, int len,
-				   u32 sel);
-extern void brcms_b_copyfrom_objmem(struct brcms_hardware *wlc_hw, uint offset,
-				     void *buf, int len, u32 sel);
-extern void brcms_b_switch_macfreq(struct brcms_hardware *wlc_hw, u8 spurmode);
-extern u16 brcms_b_get_txant(struct brcms_hardware *wlc_hw);
-extern void brcms_b_phyclk_fgc(struct brcms_hardware *wlc_hw, bool clk);
-extern void brcms_b_macphyclk_set(struct brcms_hardware *wlc_hw, bool clk);
-extern void brcms_b_core_phypll_ctl(struct brcms_hardware *wlc_hw, bool on);
-extern void brcms_b_txant_set(struct brcms_hardware *wlc_hw, u16 phytxant);
-extern void brcms_b_band_stf_ss_set(struct brcms_hardware *wlc_hw,
-				    u8 stf_mode);
-extern void brcms_c_init_scb(struct scb *scb);
+int brcms_c_txfifo(struct brcms_c_info *wlc, uint fifo, struct sk_buff *p);
+int brcms_b_xmtfifo_sz_get(struct brcms_hardware *wlc_hw, uint fifo,
+			   uint *blocks);
+
+int brcms_c_set_gmode(struct brcms_c_info *wlc, u8 gmode, bool config);
+void brcms_c_mac_promisc(struct brcms_c_info *wlc, uint filter_flags);
+u16 brcms_c_calc_lsig_len(struct brcms_c_info *wlc, u32 ratespec, uint mac_len);
+u32 brcms_c_rspec_to_rts_rspec(struct brcms_c_info *wlc, u32 rspec,
+			       bool use_rspec, u16 mimo_ctlchbw);
+u16 brcms_c_compute_rtscts_dur(struct brcms_c_info *wlc, bool cts_only,
+			       u32 rts_rate, u32 frame_rate,
+			       u8 rts_preamble_type, u8 frame_preamble_type,
+			       uint frame_len, bool ba);
+void brcms_c_inval_dma_pkts(struct brcms_hardware *hw,
+			    struct ieee80211_sta *sta, void (*dma_callback_fn));
+void brcms_c_update_probe_resp(struct brcms_c_info *wlc, bool suspend);
+int brcms_c_set_nmode(struct brcms_c_info *wlc);
+void brcms_c_beacon_phytxctl_txant_upd(struct brcms_c_info *wlc, u32 bcn_rate);
+void brcms_b_antsel_type_set(struct brcms_hardware *wlc_hw, u8 antsel_type);
+void brcms_b_set_chanspec(struct brcms_hardware *wlc_hw, u16 chanspec,
+			  bool mute, struct txpwr_limits *txpwr);
+void brcms_b_write_shm(struct brcms_hardware *wlc_hw, uint offset, u16 v);
+u16 brcms_b_read_shm(struct brcms_hardware *wlc_hw, uint offset);
+void brcms_b_mhf(struct brcms_hardware *wlc_hw, u8 idx, u16 mask, u16 val,
+		 int bands);
+void brcms_b_corereset(struct brcms_hardware *wlc_hw, u32 flags);
+void brcms_b_mctrl(struct brcms_hardware *wlc_hw, u32 mask, u32 val);
+void brcms_b_phy_reset(struct brcms_hardware *wlc_hw);
+void brcms_b_bw_set(struct brcms_hardware *wlc_hw, u16 bw);
+void brcms_b_core_phypll_reset(struct brcms_hardware *wlc_hw);
+void brcms_c_ucode_wake_override_set(struct brcms_hardware *wlc_hw,
+				     u32 override_bit);
+void brcms_c_ucode_wake_override_clear(struct brcms_hardware *wlc_hw,
+				       u32 override_bit);
+void brcms_b_write_template_ram(struct brcms_hardware *wlc_hw, int offset,
+				int len, void *buf);
+u16 brcms_b_rate_shm_offset(struct brcms_hardware *wlc_hw, u8 rate);
+void brcms_b_copyto_objmem(struct brcms_hardware *wlc_hw, uint offset,
+			   const void *buf, int len, u32 sel);
+void brcms_b_copyfrom_objmem(struct brcms_hardware *wlc_hw, uint offset,
+			     void *buf, int len, u32 sel);
+void brcms_b_switch_macfreq(struct brcms_hardware *wlc_hw, u8 spurmode);
+u16 brcms_b_get_txant(struct brcms_hardware *wlc_hw);
+void brcms_b_phyclk_fgc(struct brcms_hardware *wlc_hw, bool clk);
+void brcms_b_macphyclk_set(struct brcms_hardware *wlc_hw, bool clk);
+void brcms_b_core_phypll_ctl(struct brcms_hardware *wlc_hw, bool on);
+void brcms_b_txant_set(struct brcms_hardware *wlc_hw, u16 phytxant);
+void brcms_b_band_stf_ss_set(struct brcms_hardware *wlc_hw, u8 stf_mode);
+void brcms_c_init_scb(struct scb *scb);
 
 #endif				/* _BRCM_MAIN_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_hal.h b/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_hal.h
index e34a71e7d242..4d3734f48d9c 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_hal.h
+++ b/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_hal.h
@@ -179,121 +179,106 @@ struct shared_phy_params {
 };
 
 
-extern struct shared_phy *wlc_phy_shared_attach(struct shared_phy_params *shp);
-extern struct brcms_phy_pub *wlc_phy_attach(struct shared_phy *sh,
-					    struct bcma_device *d11core,
-					    int bandtype, struct wiphy *wiphy);
-extern void wlc_phy_detach(struct brcms_phy_pub *ppi);
-
-extern bool wlc_phy_get_phyversion(struct brcms_phy_pub *pih, u16 *phytype,
-				   u16 *phyrev, u16 *radioid,
-				   u16 *radiover);
-extern bool wlc_phy_get_encore(struct brcms_phy_pub *pih);
-extern u32 wlc_phy_get_coreflags(struct brcms_phy_pub *pih);
-
-extern void wlc_phy_hw_clk_state_upd(struct brcms_phy_pub *ppi, bool newstate);
-extern void wlc_phy_hw_state_upd(struct brcms_phy_pub *ppi, bool newstate);
-extern void wlc_phy_init(struct brcms_phy_pub *ppi, u16 chanspec);
-extern void wlc_phy_watchdog(struct brcms_phy_pub *ppi);
-extern int wlc_phy_down(struct brcms_phy_pub *ppi);
-extern u32 wlc_phy_clk_bwbits(struct brcms_phy_pub *pih);
-extern void wlc_phy_cal_init(struct brcms_phy_pub *ppi);
-extern void wlc_phy_antsel_init(struct brcms_phy_pub *ppi, bool lut_init);
-
-extern void wlc_phy_chanspec_set(struct brcms_phy_pub *ppi,
-				 u16 chanspec);
-extern u16 wlc_phy_chanspec_get(struct brcms_phy_pub *ppi);
-extern void wlc_phy_chanspec_radio_set(struct brcms_phy_pub *ppi,
-				       u16 newch);
-extern u16 wlc_phy_bw_state_get(struct brcms_phy_pub *ppi);
-extern void wlc_phy_bw_state_set(struct brcms_phy_pub *ppi, u16 bw);
-
-extern int wlc_phy_rssi_compute(struct brcms_phy_pub *pih,
-				struct d11rxhdr *rxh);
-extern void wlc_phy_por_inform(struct brcms_phy_pub *ppi);
-extern void wlc_phy_noise_sample_intr(struct brcms_phy_pub *ppi);
-extern bool wlc_phy_bist_check_phy(struct brcms_phy_pub *ppi);
-
-extern void wlc_phy_set_deaf(struct brcms_phy_pub *ppi, bool user_flag);
-
-extern void wlc_phy_switch_radio(struct brcms_phy_pub *ppi, bool on);
-extern void wlc_phy_anacore(struct brcms_phy_pub *ppi, bool on);
-
-
-extern void wlc_phy_BSSinit(struct brcms_phy_pub *ppi, bool bonlyap, int rssi);
-
-extern void wlc_phy_chanspec_ch14_widefilter_set(struct brcms_phy_pub *ppi,
-						 bool wide_filter);
-extern void wlc_phy_chanspec_band_validch(struct brcms_phy_pub *ppi, uint band,
-					  struct brcms_chanvec *channels);
-extern u16 wlc_phy_chanspec_band_firstch(struct brcms_phy_pub *ppi,
-					 uint band);
-
-extern void wlc_phy_txpower_sromlimit(struct brcms_phy_pub *ppi, uint chan,
-				      u8 *_min_, u8 *_max_, int rate);
-extern void wlc_phy_txpower_sromlimit_max_get(struct brcms_phy_pub *ppi,
-					      uint chan, u8 *_max_, u8 *_min_);
-extern void wlc_phy_txpower_boardlimit_band(struct brcms_phy_pub *ppi,
-					    uint band, s32 *, s32 *, u32 *);
-extern void wlc_phy_txpower_limit_set(struct brcms_phy_pub *ppi,
-				      struct txpwr_limits *,
-				      u16 chanspec);
-extern int wlc_phy_txpower_get(struct brcms_phy_pub *ppi, uint *qdbm,
-			       bool *override);
-extern int wlc_phy_txpower_set(struct brcms_phy_pub *ppi, uint qdbm,
-			       bool override);
-extern void wlc_phy_txpower_target_set(struct brcms_phy_pub *ppi,
-				       struct txpwr_limits *);
-extern bool wlc_phy_txpower_hw_ctrl_get(struct brcms_phy_pub *ppi);
-extern void wlc_phy_txpower_hw_ctrl_set(struct brcms_phy_pub *ppi,
-					bool hwpwrctrl);
-extern u8 wlc_phy_txpower_get_target_min(struct brcms_phy_pub *ppi);
-extern u8 wlc_phy_txpower_get_target_max(struct brcms_phy_pub *ppi);
-extern bool wlc_phy_txpower_ipa_ison(struct brcms_phy_pub *pih);
-
-extern void wlc_phy_stf_chain_init(struct brcms_phy_pub *pih, u8 txchain,
-				   u8 rxchain);
-extern void wlc_phy_stf_chain_set(struct brcms_phy_pub *pih, u8 txchain,
-				  u8 rxchain);
-extern void wlc_phy_stf_chain_get(struct brcms_phy_pub *pih, u8 *txchain,
-				  u8 *rxchain);
-extern u8 wlc_phy_stf_chain_active_get(struct brcms_phy_pub *pih);
-extern s8 wlc_phy_stf_ssmode_get(struct brcms_phy_pub *pih,
-				 u16 chanspec);
-extern void wlc_phy_ldpc_override_set(struct brcms_phy_pub *ppi, bool val);
-
-extern void wlc_phy_cal_perical(struct brcms_phy_pub *ppi, u8 reason);
-extern void wlc_phy_noise_sample_request_external(struct brcms_phy_pub *ppi);
-extern void wlc_phy_edcrs_lock(struct brcms_phy_pub *pih, bool lock);
-extern void wlc_phy_cal_papd_recal(struct brcms_phy_pub *ppi);
-
-extern void wlc_phy_ant_rxdiv_set(struct brcms_phy_pub *ppi, u8 val);
-extern void wlc_phy_clear_tssi(struct brcms_phy_pub *ppi);
-extern void wlc_phy_hold_upd(struct brcms_phy_pub *ppi, u32 id, bool val);
-extern void wlc_phy_mute_upd(struct brcms_phy_pub *ppi, bool val, u32 flags);
-
-extern void wlc_phy_antsel_type_set(struct brcms_phy_pub *ppi, u8 antsel_type);
-
-extern void wlc_phy_txpower_get_current(struct brcms_phy_pub *ppi,
-					struct tx_power *power, uint channel);
-
-extern void wlc_phy_initcal_enable(struct brcms_phy_pub *pih, bool initcal);
-extern bool wlc_phy_test_ison(struct brcms_phy_pub *ppi);
-extern void wlc_phy_txpwr_percent_set(struct brcms_phy_pub *ppi,
-				      u8 txpwr_percent);
-extern void wlc_phy_ofdm_rateset_war(struct brcms_phy_pub *pih, bool war);
-extern void wlc_phy_bf_preempt_enable(struct brcms_phy_pub *pih,
-				      bool bf_preempt);
-extern void wlc_phy_machwcap_set(struct brcms_phy_pub *ppi, u32 machwcap);
-
-extern void wlc_phy_runbist_config(struct brcms_phy_pub *ppi, bool start_end);
-
-extern void wlc_phy_freqtrack_start(struct brcms_phy_pub *ppi);
-extern void wlc_phy_freqtrack_end(struct brcms_phy_pub *ppi);
-
-extern const u8 *wlc_phy_get_ofdm_rate_lookup(void);
-
-extern s8 wlc_phy_get_tx_power_offset_by_mcs(struct brcms_phy_pub *ppi,
-					     u8 mcs_offset);
-extern s8 wlc_phy_get_tx_power_offset(struct brcms_phy_pub *ppi, u8 tbl_offset);
+struct shared_phy *wlc_phy_shared_attach(struct shared_phy_params *shp);
+struct brcms_phy_pub *wlc_phy_attach(struct shared_phy *sh,
+				     struct bcma_device *d11core, int bandtype,
+				     struct wiphy *wiphy);
+void wlc_phy_detach(struct brcms_phy_pub *ppi);
+
+bool wlc_phy_get_phyversion(struct brcms_phy_pub *pih, u16 *phytype,
+			    u16 *phyrev, u16 *radioid, u16 *radiover);
+bool wlc_phy_get_encore(struct brcms_phy_pub *pih);
+u32 wlc_phy_get_coreflags(struct brcms_phy_pub *pih);
+
+void wlc_phy_hw_clk_state_upd(struct brcms_phy_pub *ppi, bool newstate);
+void wlc_phy_hw_state_upd(struct brcms_phy_pub *ppi, bool newstate);
+void wlc_phy_init(struct brcms_phy_pub *ppi, u16 chanspec);
+void wlc_phy_watchdog(struct brcms_phy_pub *ppi);
+int wlc_phy_down(struct brcms_phy_pub *ppi);
+u32 wlc_phy_clk_bwbits(struct brcms_phy_pub *pih);
+void wlc_phy_cal_init(struct brcms_phy_pub *ppi);
+void wlc_phy_antsel_init(struct brcms_phy_pub *ppi, bool lut_init);
+
+void wlc_phy_chanspec_set(struct brcms_phy_pub *ppi, u16 chanspec);
+u16 wlc_phy_chanspec_get(struct brcms_phy_pub *ppi);
+void wlc_phy_chanspec_radio_set(struct brcms_phy_pub *ppi, u16 newch);
+u16 wlc_phy_bw_state_get(struct brcms_phy_pub *ppi);
+void wlc_phy_bw_state_set(struct brcms_phy_pub *ppi, u16 bw);
+
+int wlc_phy_rssi_compute(struct brcms_phy_pub *pih, struct d11rxhdr *rxh);
+void wlc_phy_por_inform(struct brcms_phy_pub *ppi);
+void wlc_phy_noise_sample_intr(struct brcms_phy_pub *ppi);
+bool wlc_phy_bist_check_phy(struct brcms_phy_pub *ppi);
+
+void wlc_phy_set_deaf(struct brcms_phy_pub *ppi, bool user_flag);
+
+void wlc_phy_switch_radio(struct brcms_phy_pub *ppi, bool on);
+void wlc_phy_anacore(struct brcms_phy_pub *ppi, bool on);
+
+
+void wlc_phy_BSSinit(struct brcms_phy_pub *ppi, bool bonlyap, int rssi);
+
+void wlc_phy_chanspec_ch14_widefilter_set(struct brcms_phy_pub *ppi,
+					  bool wide_filter);
+void wlc_phy_chanspec_band_validch(struct brcms_phy_pub *ppi, uint band,
+				   struct brcms_chanvec *channels);
+u16 wlc_phy_chanspec_band_firstch(struct brcms_phy_pub *ppi, uint band);
+
+void wlc_phy_txpower_sromlimit(struct brcms_phy_pub *ppi, uint chan, u8 *_min_,
+			       u8 *_max_, int rate);
+void wlc_phy_txpower_sromlimit_max_get(struct brcms_phy_pub *ppi, uint chan,
+				       u8 *_max_, u8 *_min_);
+void wlc_phy_txpower_boardlimit_band(struct brcms_phy_pub *ppi, uint band,
+				     s32 *, s32 *, u32 *);
+void wlc_phy_txpower_limit_set(struct brcms_phy_pub *ppi, struct txpwr_limits *,
+			       u16 chanspec);
+int wlc_phy_txpower_get(struct brcms_phy_pub *ppi, uint *qdbm, bool *override);
+int wlc_phy_txpower_set(struct brcms_phy_pub *ppi, uint qdbm, bool override);
+void wlc_phy_txpower_target_set(struct brcms_phy_pub *ppi,
+				struct txpwr_limits *);
+bool wlc_phy_txpower_hw_ctrl_get(struct brcms_phy_pub *ppi);
+void wlc_phy_txpower_hw_ctrl_set(struct brcms_phy_pub *ppi, bool hwpwrctrl);
+u8 wlc_phy_txpower_get_target_min(struct brcms_phy_pub *ppi);
+u8 wlc_phy_txpower_get_target_max(struct brcms_phy_pub *ppi);
+bool wlc_phy_txpower_ipa_ison(struct brcms_phy_pub *pih);
+
+void wlc_phy_stf_chain_init(struct brcms_phy_pub *pih, u8 txchain, u8 rxchain);
+void wlc_phy_stf_chain_set(struct brcms_phy_pub *pih, u8 txchain, u8 rxchain);
+void wlc_phy_stf_chain_get(struct brcms_phy_pub *pih, u8 *txchain, u8 *rxchain);
+u8 wlc_phy_stf_chain_active_get(struct brcms_phy_pub *pih);
+s8 wlc_phy_stf_ssmode_get(struct brcms_phy_pub *pih, u16 chanspec);
+void wlc_phy_ldpc_override_set(struct brcms_phy_pub *ppi, bool val);
+
+void wlc_phy_cal_perical(struct brcms_phy_pub *ppi, u8 reason);
+void wlc_phy_noise_sample_request_external(struct brcms_phy_pub *ppi);
+void wlc_phy_edcrs_lock(struct brcms_phy_pub *pih, bool lock);
+void wlc_phy_cal_papd_recal(struct brcms_phy_pub *ppi);
+
+void wlc_phy_ant_rxdiv_set(struct brcms_phy_pub *ppi, u8 val);
+void wlc_phy_clear_tssi(struct brcms_phy_pub *ppi);
+void wlc_phy_hold_upd(struct brcms_phy_pub *ppi, u32 id, bool val);
+void wlc_phy_mute_upd(struct brcms_phy_pub *ppi, bool val, u32 flags);
+
+void wlc_phy_antsel_type_set(struct brcms_phy_pub *ppi, u8 antsel_type);
+
+void wlc_phy_txpower_get_current(struct brcms_phy_pub *ppi,
+				 struct tx_power *power, uint channel);
+
+void wlc_phy_initcal_enable(struct brcms_phy_pub *pih, bool initcal);
+bool wlc_phy_test_ison(struct brcms_phy_pub *ppi);
+void wlc_phy_txpwr_percent_set(struct brcms_phy_pub *ppi, u8 txpwr_percent);
+void wlc_phy_ofdm_rateset_war(struct brcms_phy_pub *pih, bool war);
+void wlc_phy_bf_preempt_enable(struct brcms_phy_pub *pih, bool bf_preempt);
+void wlc_phy_machwcap_set(struct brcms_phy_pub *ppi, u32 machwcap);
+
+void wlc_phy_runbist_config(struct brcms_phy_pub *ppi, bool start_end);
+
+void wlc_phy_freqtrack_start(struct brcms_phy_pub *ppi);
+void wlc_phy_freqtrack_end(struct brcms_phy_pub *ppi);
+
+const u8 *wlc_phy_get_ofdm_rate_lookup(void);
+
+s8 wlc_phy_get_tx_power_offset_by_mcs(struct brcms_phy_pub *ppi,
+				      u8 mcs_offset);
+s8 wlc_phy_get_tx_power_offset(struct brcms_phy_pub *ppi, u8 tbl_offset);
 #endif                          /* _BRCM_PHY_HAL_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_int.h b/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_int.h
index 1dc767c31653..4960f7d26804 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_int.h
+++ b/drivers/net/wireless/brcm80211/brcmsmac/phy/phy_int.h
@@ -910,113 +910,103 @@ struct lcnphy_radio_regs {
 	u8 do_init_g;
 };
 
-extern u16 read_phy_reg(struct brcms_phy *pi, u16 addr);
-extern void write_phy_reg(struct brcms_phy *pi, u16 addr, u16 val);
-extern void and_phy_reg(struct brcms_phy *pi, u16 addr, u16 val);
-extern void or_phy_reg(struct brcms_phy *pi, u16 addr, u16 val);
-extern void mod_phy_reg(struct brcms_phy *pi, u16 addr, u16 mask, u16 val);
-
-extern u16 read_radio_reg(struct brcms_phy *pi, u16 addr);
-extern void or_radio_reg(struct brcms_phy *pi, u16 addr, u16 val);
-extern void and_radio_reg(struct brcms_phy *pi, u16 addr, u16 val);
-extern void mod_radio_reg(struct brcms_phy *pi, u16 addr, u16 mask,
-			  u16 val);
-extern void xor_radio_reg(struct brcms_phy *pi, u16 addr, u16 mask);
-
-extern void write_radio_reg(struct brcms_phy *pi, u16 addr, u16 val);
-
-extern void wlc_phyreg_enter(struct brcms_phy_pub *pih);
-extern void wlc_phyreg_exit(struct brcms_phy_pub *pih);
-extern void wlc_radioreg_enter(struct brcms_phy_pub *pih);
-extern void wlc_radioreg_exit(struct brcms_phy_pub *pih);
-
-extern void wlc_phy_read_table(struct brcms_phy *pi,
-			       const struct phytbl_info *ptbl_info,
-			       u16 tblAddr, u16 tblDataHi,
-			       u16 tblDatalo);
-extern void wlc_phy_write_table(struct brcms_phy *pi,
-				const struct phytbl_info *ptbl_info,
-				u16 tblAddr, u16 tblDataHi, u16 tblDatalo);
-extern void wlc_phy_table_addr(struct brcms_phy *pi, uint tbl_id,
-			       uint tbl_offset, u16 tblAddr, u16 tblDataHi,
-			       u16 tblDataLo);
-extern void wlc_phy_table_data_write(struct brcms_phy *pi, uint width, u32 val);
-
-extern void write_phy_channel_reg(struct brcms_phy *pi, uint val);
-extern void wlc_phy_txpower_update_shm(struct brcms_phy *pi);
-
-extern u8 wlc_phy_nbits(s32 value);
-extern void wlc_phy_compute_dB(u32 *cmplx_pwr, s8 *p_dB, u8 core);
-
-extern uint wlc_phy_init_radio_regs_allbands(struct brcms_phy *pi,
-					     struct radio_20xx_regs *radioregs);
-extern uint wlc_phy_init_radio_regs(struct brcms_phy *pi,
-				    const struct radio_regs *radioregs,
-				    u16 core_offset);
-
-extern void wlc_phy_txpower_ipa_upd(struct brcms_phy *pi);
-
-extern void wlc_phy_do_dummy_tx(struct brcms_phy *pi, bool ofdm, bool pa_on);
-extern void wlc_phy_papd_decode_epsilon(u32 epsilon, s32 *eps_real,
-					s32 *eps_imag);
-
-extern void wlc_phy_cal_perical_mphase_reset(struct brcms_phy *pi);
-extern void wlc_phy_cal_perical_mphase_restart(struct brcms_phy *pi);
-
-extern bool wlc_phy_attach_nphy(struct brcms_phy *pi);
-extern bool wlc_phy_attach_lcnphy(struct brcms_phy *pi);
-
-extern void wlc_phy_detach_lcnphy(struct brcms_phy *pi);
-
-extern void wlc_phy_init_nphy(struct brcms_phy *pi);
-extern void wlc_phy_init_lcnphy(struct brcms_phy *pi);
-
-extern void wlc_phy_cal_init_nphy(struct brcms_phy *pi);
-extern void wlc_phy_cal_init_lcnphy(struct brcms_phy *pi);
-
-extern void wlc_phy_chanspec_set_nphy(struct brcms_phy *pi,
-				      u16 chanspec);
-extern void wlc_phy_chanspec_set_lcnphy(struct brcms_phy *pi,
-					u16 chanspec);
-extern void wlc_phy_chanspec_set_fixup_lcnphy(struct brcms_phy *pi,
-					      u16 chanspec);
-extern int wlc_phy_channel2freq(uint channel);
-extern int wlc_phy_chanspec_freq2bandrange_lpssn(uint);
-extern int wlc_phy_chanspec_bandrange_get(struct brcms_phy *, u16 chanspec);
-
-extern void wlc_lcnphy_set_tx_pwr_ctrl(struct brcms_phy *pi, u16 mode);
-extern s8 wlc_lcnphy_get_current_tx_pwr_idx(struct brcms_phy *pi);
-
-extern void wlc_phy_txpower_recalc_target_nphy(struct brcms_phy *pi);
-extern void wlc_lcnphy_txpower_recalc_target(struct brcms_phy *pi);
-extern void wlc_phy_txpower_recalc_target_lcnphy(struct brcms_phy *pi);
-
-extern void wlc_lcnphy_set_tx_pwr_by_index(struct brcms_phy *pi, int index);
-extern void wlc_lcnphy_tx_pu(struct brcms_phy *pi, bool bEnable);
-extern void wlc_lcnphy_stop_tx_tone(struct brcms_phy *pi);
-extern void wlc_lcnphy_start_tx_tone(struct brcms_phy *pi, s32 f_kHz,
-				     u16 max_val, bool iqcalmode);
-
-extern void wlc_phy_txpower_sromlimit_get_nphy(struct brcms_phy *pi, uint chan,
-					       u8 *max_pwr, u8 rate_id);
-extern void wlc_phy_ofdm_to_mcs_powers_nphy(u8 *power, u8 rate_mcs_start,
-					    u8 rate_mcs_end,
-					    u8 rate_ofdm_start);
-extern void wlc_phy_mcs_to_ofdm_powers_nphy(u8 *power,
-					    u8 rate_ofdm_start,
-					    u8 rate_ofdm_end,
-					    u8 rate_mcs_start);
-
-extern u16 wlc_lcnphy_tempsense(struct brcms_phy *pi, bool mode);
-extern s16 wlc_lcnphy_tempsense_new(struct brcms_phy *pi, bool mode);
-extern s8 wlc_lcnphy_tempsense_degree(struct brcms_phy *pi, bool mode);
-extern s8 wlc_lcnphy_vbatsense(struct brcms_phy *pi, bool mode);
-extern void wlc_phy_carrier_suppress_lcnphy(struct brcms_phy *pi);
-extern void wlc_lcnphy_crsuprs(struct brcms_phy *pi, int channel);
-extern void wlc_lcnphy_epa_switch(struct brcms_phy *pi, bool mode);
-extern void wlc_2064_vco_cal(struct brcms_phy *pi);
-
-extern void wlc_phy_txpower_recalc_target(struct brcms_phy *pi);
+u16 read_phy_reg(struct brcms_phy *pi, u16 addr);
+void write_phy_reg(struct brcms_phy *pi, u16 addr, u16 val);
+void and_phy_reg(struct brcms_phy *pi, u16 addr, u16 val);
+void or_phy_reg(struct brcms_phy *pi, u16 addr, u16 val);
+void mod_phy_reg(struct brcms_phy *pi, u16 addr, u16 mask, u16 val);
+
+u16 read_radio_reg(struct brcms_phy *pi, u16 addr);
+void or_radio_reg(struct brcms_phy *pi, u16 addr, u16 val);
+void and_radio_reg(struct brcms_phy *pi, u16 addr, u16 val);
+void mod_radio_reg(struct brcms_phy *pi, u16 addr, u16 mask, u16 val);
+void xor_radio_reg(struct brcms_phy *pi, u16 addr, u16 mask);
+
+void write_radio_reg(struct brcms_phy *pi, u16 addr, u16 val);
+
+void wlc_phyreg_enter(struct brcms_phy_pub *pih);
+void wlc_phyreg_exit(struct brcms_phy_pub *pih);
+void wlc_radioreg_enter(struct brcms_phy_pub *pih);
+void wlc_radioreg_exit(struct brcms_phy_pub *pih);
+
+void wlc_phy_read_table(struct brcms_phy *pi,
+			const struct phytbl_info *ptbl_info,
+			u16 tblAddr, u16 tblDataHi, u16 tblDatalo);
+void wlc_phy_write_table(struct brcms_phy *pi,
+			 const struct phytbl_info *ptbl_info,
+			 u16 tblAddr, u16 tblDataHi, u16 tblDatalo);
+void wlc_phy_table_addr(struct brcms_phy *pi, uint tbl_id, uint tbl_offset,
+			u16 tblAddr, u16 tblDataHi, u16 tblDataLo);
+void wlc_phy_table_data_write(struct brcms_phy *pi, uint width, u32 val);
+
+void write_phy_channel_reg(struct brcms_phy *pi, uint val);
+void wlc_phy_txpower_update_shm(struct brcms_phy *pi);
+
+u8 wlc_phy_nbits(s32 value);
+void wlc_phy_compute_dB(u32 *cmplx_pwr, s8 *p_dB, u8 core);
+
+uint wlc_phy_init_radio_regs_allbands(struct brcms_phy *pi,
+				      struct radio_20xx_regs *radioregs);
+uint wlc_phy_init_radio_regs(struct brcms_phy *pi,
+			     const struct radio_regs *radioregs,
+			     u16 core_offset);
+
+void wlc_phy_txpower_ipa_upd(struct brcms_phy *pi);
+
+void wlc_phy_do_dummy_tx(struct brcms_phy *pi, bool ofdm, bool pa_on);
+void wlc_phy_papd_decode_epsilon(u32 epsilon, s32 *eps_real, s32 *eps_imag);
+
+void wlc_phy_cal_perical_mphase_reset(struct brcms_phy *pi);
+void wlc_phy_cal_perical_mphase_restart(struct brcms_phy *pi);
+
+bool wlc_phy_attach_nphy(struct brcms_phy *pi);
+bool wlc_phy_attach_lcnphy(struct brcms_phy *pi);
+
+void wlc_phy_detach_lcnphy(struct brcms_phy *pi);
+
+void wlc_phy_init_nphy(struct brcms_phy *pi);
+void wlc_phy_init_lcnphy(struct brcms_phy *pi);
+
+void wlc_phy_cal_init_nphy(struct brcms_phy *pi);
+void wlc_phy_cal_init_lcnphy(struct brcms_phy *pi);
+
+void wlc_phy_chanspec_set_nphy(struct brcms_phy *pi, u16 chanspec);
+void wlc_phy_chanspec_set_lcnphy(struct brcms_phy *pi, u16 chanspec);
+void wlc_phy_chanspec_set_fixup_lcnphy(struct brcms_phy *pi, u16 chanspec);
+int wlc_phy_channel2freq(uint channel);
+int wlc_phy_chanspec_freq2bandrange_lpssn(uint);
+int wlc_phy_chanspec_bandrange_get(struct brcms_phy *, u16 chanspec);
+
+void wlc_lcnphy_set_tx_pwr_ctrl(struct brcms_phy *pi, u16 mode);
+s8 wlc_lcnphy_get_current_tx_pwr_idx(struct brcms_phy *pi);
+
+void wlc_phy_txpower_recalc_target_nphy(struct brcms_phy *pi);
+void wlc_lcnphy_txpower_recalc_target(struct brcms_phy *pi);
+void wlc_phy_txpower_recalc_target_lcnphy(struct brcms_phy *pi);
+
+void wlc_lcnphy_set_tx_pwr_by_index(struct brcms_phy *pi, int index);
+void wlc_lcnphy_tx_pu(struct brcms_phy *pi, bool bEnable);
+void wlc_lcnphy_stop_tx_tone(struct brcms_phy *pi);
+void wlc_lcnphy_start_tx_tone(struct brcms_phy *pi, s32 f_kHz, u16 max_val,
+			      bool iqcalmode);
+
+void wlc_phy_txpower_sromlimit_get_nphy(struct brcms_phy *pi, uint chan,
+					u8 *max_pwr, u8 rate_id);
+void wlc_phy_ofdm_to_mcs_powers_nphy(u8 *power, u8 rate_mcs_start,
+				     u8 rate_mcs_end, u8 rate_ofdm_start);
+void wlc_phy_mcs_to_ofdm_powers_nphy(u8 *power, u8 rate_ofdm_start,
+				     u8 rate_ofdm_end, u8 rate_mcs_start);
+
+u16 wlc_lcnphy_tempsense(struct brcms_phy *pi, bool mode);
+s16 wlc_lcnphy_tempsense_new(struct brcms_phy *pi, bool mode);
+s8 wlc_lcnphy_tempsense_degree(struct brcms_phy *pi, bool mode);
+s8 wlc_lcnphy_vbatsense(struct brcms_phy *pi, bool mode);
+void wlc_phy_carrier_suppress_lcnphy(struct brcms_phy *pi);
+void wlc_lcnphy_crsuprs(struct brcms_phy *pi, int channel);
+void wlc_lcnphy_epa_switch(struct brcms_phy *pi, bool mode);
+void wlc_2064_vco_cal(struct brcms_phy *pi);
+
+void wlc_phy_txpower_recalc_target(struct brcms_phy *pi);
 
 #define LCNPHY_TBL_ID_PAPDCOMPDELTATBL	0x18
 #define LCNPHY_TX_POWER_TABLE_SIZE	128
@@ -1030,26 +1020,24 @@ extern void wlc_phy_txpower_recalc_target(struct brcms_phy *pi);
 
 #define LCNPHY_TX_PWR_CTRL_TEMPBASED	0xE001
 
-extern void wlc_lcnphy_write_table(struct brcms_phy *pi,
-				   const struct phytbl_info *pti);
-extern void wlc_lcnphy_read_table(struct brcms_phy *pi,
-				  struct phytbl_info *pti);
-extern void wlc_lcnphy_set_tx_iqcc(struct brcms_phy *pi, u16 a, u16 b);
-extern void wlc_lcnphy_set_tx_locc(struct brcms_phy *pi, u16 didq);
-extern void wlc_lcnphy_get_tx_iqcc(struct brcms_phy *pi, u16 *a, u16 *b);
-extern u16 wlc_lcnphy_get_tx_locc(struct brcms_phy *pi);
-extern void wlc_lcnphy_get_radio_loft(struct brcms_phy *pi, u8 *ei0,
-				      u8 *eq0, u8 *fi0, u8 *fq0);
-extern void wlc_lcnphy_calib_modes(struct brcms_phy *pi, uint mode);
-extern void wlc_lcnphy_deaf_mode(struct brcms_phy *pi, bool mode);
-extern bool wlc_phy_tpc_isenabled_lcnphy(struct brcms_phy *pi);
-extern void wlc_lcnphy_tx_pwr_update_npt(struct brcms_phy *pi);
-extern s32 wlc_lcnphy_tssi2dbm(s32 tssi, s32 a1, s32 b0, s32 b1);
-extern void wlc_lcnphy_get_tssi(struct brcms_phy *pi, s8 *ofdm_pwr,
-				s8 *cck_pwr);
-extern void wlc_lcnphy_tx_power_adjustment(struct brcms_phy_pub *ppi);
-
-extern s32 wlc_lcnphy_rx_signal_power(struct brcms_phy *pi, s32 gain_index);
+void wlc_lcnphy_write_table(struct brcms_phy *pi,
+			    const struct phytbl_info *pti);
+void wlc_lcnphy_read_table(struct brcms_phy *pi, struct phytbl_info *pti);
+void wlc_lcnphy_set_tx_iqcc(struct brcms_phy *pi, u16 a, u16 b);
+void wlc_lcnphy_set_tx_locc(struct brcms_phy *pi, u16 didq);
+void wlc_lcnphy_get_tx_iqcc(struct brcms_phy *pi, u16 *a, u16 *b);
+u16 wlc_lcnphy_get_tx_locc(struct brcms_phy *pi);
+void wlc_lcnphy_get_radio_loft(struct brcms_phy *pi, u8 *ei0, u8 *eq0, u8 *fi0,
+			       u8 *fq0);
+void wlc_lcnphy_calib_modes(struct brcms_phy *pi, uint mode);
+void wlc_lcnphy_deaf_mode(struct brcms_phy *pi, bool mode);
+bool wlc_phy_tpc_isenabled_lcnphy(struct brcms_phy *pi);
+void wlc_lcnphy_tx_pwr_update_npt(struct brcms_phy *pi);
+s32 wlc_lcnphy_tssi2dbm(s32 tssi, s32 a1, s32 b0, s32 b1);
+void wlc_lcnphy_get_tssi(struct brcms_phy *pi, s8 *ofdm_pwr, s8 *cck_pwr);
+void wlc_lcnphy_tx_power_adjustment(struct brcms_phy_pub *ppi);
+
+s32 wlc_lcnphy_rx_signal_power(struct brcms_phy *pi, s32 gain_index);
 
 #define NPHY_MAX_HPVGA1_INDEX		10
 #define NPHY_DEF_HPVGA1_INDEXLIMIT	7
@@ -1060,9 +1048,8 @@ struct phy_iq_est {
 	u32 q_pwr;
 };
 
-extern void wlc_phy_stay_in_carriersearch_nphy(struct brcms_phy *pi,
-					       bool enable);
-extern void wlc_nphy_deaf_mode(struct brcms_phy *pi, bool mode);
+void wlc_phy_stay_in_carriersearch_nphy(struct brcms_phy *pi, bool enable);
+void wlc_nphy_deaf_mode(struct brcms_phy *pi, bool mode);
 
 #define wlc_phy_write_table_nphy(pi, pti) \
 	wlc_phy_write_table(pi, pti, 0x72, 0x74, 0x73)
@@ -1076,10 +1063,10 @@ extern void wlc_nphy_deaf_mode(struct brcms_phy *pi, bool mode);
 #define wlc_nphy_table_data_write(pi, w, v) \
 	wlc_phy_table_data_write((pi), (w), (v))
 
-extern void wlc_phy_table_read_nphy(struct brcms_phy *pi, u32, u32 l, u32 o,
-				    u32 w, void *d);
-extern void wlc_phy_table_write_nphy(struct brcms_phy *pi, u32, u32, u32,
-				     u32, const void *);
+void wlc_phy_table_read_nphy(struct brcms_phy *pi, u32, u32 l, u32 o, u32 w,
+			     void *d);
+void wlc_phy_table_write_nphy(struct brcms_phy *pi, u32, u32, u32, u32,
+			      const void *);
 
 #define	PHY_IPA(pi) \
 	((pi->ipa2g_on && CHSPEC_IS2G(pi->radio_chanspec)) || \
@@ -1089,73 +1076,67 @@ extern void wlc_phy_table_write_nphy(struct brcms_phy *pi, u32, u32, u32,
 	if (NREV_LT((pi)->pubpi.phy_rev, 3)) \
 		(void)bcma_read32(pi->d11core, D11REGOFFS(maccontrol))
 
-extern void wlc_phy_cal_perical_nphy_run(struct brcms_phy *pi, u8 caltype);
-extern void wlc_phy_aci_reset_nphy(struct brcms_phy *pi);
-extern void wlc_phy_pa_override_nphy(struct brcms_phy *pi, bool en);
-
-extern u8 wlc_phy_get_chan_freq_range_nphy(struct brcms_phy *pi, uint chan);
-extern void wlc_phy_switch_radio_nphy(struct brcms_phy *pi, bool on);
-
-extern void wlc_phy_stf_chain_upd_nphy(struct brcms_phy *pi);
-
-extern void wlc_phy_force_rfseq_nphy(struct brcms_phy *pi, u8 cmd);
-extern s16 wlc_phy_tempsense_nphy(struct brcms_phy *pi);
-
-extern u16 wlc_phy_classifier_nphy(struct brcms_phy *pi, u16 mask, u16 val);
-
-extern void wlc_phy_rx_iq_est_nphy(struct brcms_phy *pi, struct phy_iq_est *est,
-				   u16 num_samps, u8 wait_time,
-				   u8 wait_for_crs);
-
-extern void wlc_phy_rx_iq_coeffs_nphy(struct brcms_phy *pi, u8 write,
-				      struct nphy_iq_comp *comp);
-extern void wlc_phy_aci_and_noise_reduction_nphy(struct brcms_phy *pi);
-
-extern void wlc_phy_rxcore_setstate_nphy(struct brcms_phy_pub *pih,
-					 u8 rxcore_bitmask);
-extern u8 wlc_phy_rxcore_getstate_nphy(struct brcms_phy_pub *pih);
-
-extern void wlc_phy_txpwrctrl_enable_nphy(struct brcms_phy *pi, u8 ctrl_type);
-extern void wlc_phy_txpwr_fixpower_nphy(struct brcms_phy *pi);
-extern void wlc_phy_txpwr_apply_nphy(struct brcms_phy *pi);
-extern void wlc_phy_txpwr_papd_cal_nphy(struct brcms_phy *pi);
-extern u16 wlc_phy_txpwr_idx_get_nphy(struct brcms_phy *pi);
-
-extern struct nphy_txgains wlc_phy_get_tx_gain_nphy(struct brcms_phy *pi);
-extern int wlc_phy_cal_txiqlo_nphy(struct brcms_phy *pi,
-				   struct nphy_txgains target_gain,
-				   bool full, bool m);
-extern int wlc_phy_cal_rxiq_nphy(struct brcms_phy *pi,
-				 struct nphy_txgains target_gain,
-				 u8 type, bool d);
-extern void wlc_phy_txpwr_index_nphy(struct brcms_phy *pi, u8 core_mask,
-				     s8 txpwrindex, bool res);
-extern void wlc_phy_rssisel_nphy(struct brcms_phy *pi, u8 core, u8 rssi_type);
-extern int wlc_phy_poll_rssi_nphy(struct brcms_phy *pi, u8 rssi_type,
-				  s32 *rssi_buf, u8 nsamps);
-extern void wlc_phy_rssi_cal_nphy(struct brcms_phy *pi);
-extern int wlc_phy_aci_scan_nphy(struct brcms_phy *pi);
-extern void wlc_phy_cal_txgainctrl_nphy(struct brcms_phy *pi,
-					s32 dBm_targetpower, bool debug);
-extern int wlc_phy_tx_tone_nphy(struct brcms_phy *pi, u32 f_kHz, u16 max_val,
-				u8 mode, u8, bool);
-extern void wlc_phy_stopplayback_nphy(struct brcms_phy *pi);
-extern void wlc_phy_est_tonepwr_nphy(struct brcms_phy *pi, s32 *qdBm_pwrbuf,
-				     u8 num_samps);
-extern void wlc_phy_radio205x_vcocal_nphy(struct brcms_phy *pi);
-
-extern int wlc_phy_rssi_compute_nphy(struct brcms_phy *pi,
-				     struct d11rxhdr *rxh);
+void wlc_phy_cal_perical_nphy_run(struct brcms_phy *pi, u8 caltype);
+void wlc_phy_aci_reset_nphy(struct brcms_phy *pi);
+void wlc_phy_pa_override_nphy(struct brcms_phy *pi, bool en);
+
+u8 wlc_phy_get_chan_freq_range_nphy(struct brcms_phy *pi, uint chan);
+void wlc_phy_switch_radio_nphy(struct brcms_phy *pi, bool on);
+
+void wlc_phy_stf_chain_upd_nphy(struct brcms_phy *pi);
+
+void wlc_phy_force_rfseq_nphy(struct brcms_phy *pi, u8 cmd);
+s16 wlc_phy_tempsense_nphy(struct brcms_phy *pi);
+
+u16 wlc_phy_classifier_nphy(struct brcms_phy *pi, u16 mask, u16 val);
+
+void wlc_phy_rx_iq_est_nphy(struct brcms_phy *pi, struct phy_iq_est *est,
+			    u16 num_samps, u8 wait_time, u8 wait_for_crs);
+
+void wlc_phy_rx_iq_coeffs_nphy(struct brcms_phy *pi, u8 write,
+			       struct nphy_iq_comp *comp);
+void wlc_phy_aci_and_noise_reduction_nphy(struct brcms_phy *pi);
+
+void wlc_phy_rxcore_setstate_nphy(struct brcms_phy_pub *pih, u8 rxcore_bitmask);
+u8 wlc_phy_rxcore_getstate_nphy(struct brcms_phy_pub *pih);
+
+void wlc_phy_txpwrctrl_enable_nphy(struct brcms_phy *pi, u8 ctrl_type);
+void wlc_phy_txpwr_fixpower_nphy(struct brcms_phy *pi);
+void wlc_phy_txpwr_apply_nphy(struct brcms_phy *pi);
+void wlc_phy_txpwr_papd_cal_nphy(struct brcms_phy *pi);
+u16 wlc_phy_txpwr_idx_get_nphy(struct brcms_phy *pi);
+
+struct nphy_txgains wlc_phy_get_tx_gain_nphy(struct brcms_phy *pi);
+int wlc_phy_cal_txiqlo_nphy(struct brcms_phy *pi,
+			    struct nphy_txgains target_gain, bool full, bool m);
+int wlc_phy_cal_rxiq_nphy(struct brcms_phy *pi, struct nphy_txgains target_gain,
+			  u8 type, bool d);
+void wlc_phy_txpwr_index_nphy(struct brcms_phy *pi, u8 core_mask,
+			      s8 txpwrindex, bool res);
+void wlc_phy_rssisel_nphy(struct brcms_phy *pi, u8 core, u8 rssi_type);
+int wlc_phy_poll_rssi_nphy(struct brcms_phy *pi, u8 rssi_type,
+			   s32 *rssi_buf, u8 nsamps);
+void wlc_phy_rssi_cal_nphy(struct brcms_phy *pi);
+int wlc_phy_aci_scan_nphy(struct brcms_phy *pi);
+void wlc_phy_cal_txgainctrl_nphy(struct brcms_phy *pi, s32 dBm_targetpower,
+				 bool debug);
+int wlc_phy_tx_tone_nphy(struct brcms_phy *pi, u32 f_kHz, u16 max_val, u8 mode,
+			 u8, bool);
+void wlc_phy_stopplayback_nphy(struct brcms_phy *pi);
+void wlc_phy_est_tonepwr_nphy(struct brcms_phy *pi, s32 *qdBm_pwrbuf,
+			      u8 num_samps);
+void wlc_phy_radio205x_vcocal_nphy(struct brcms_phy *pi);
+
+int wlc_phy_rssi_compute_nphy(struct brcms_phy *pi, struct d11rxhdr *rxh);
 
 #define NPHY_TESTPATTERN_BPHY_EVM   0
 #define NPHY_TESTPATTERN_BPHY_RFCS  1
 
-extern void wlc_phy_nphy_tkip_rifs_war(struct brcms_phy *pi, u8 rifs);
+void wlc_phy_nphy_tkip_rifs_war(struct brcms_phy *pi, u8 rifs);
 
 void wlc_phy_get_pwrdet_offsets(struct brcms_phy *pi, s8 *cckoffset,
 				s8 *ofdmoffset);
-extern s8 wlc_phy_upd_rssi_offset(struct brcms_phy *pi, s8 rssi,
-				  u16 chanspec);
+s8 wlc_phy_upd_rssi_offset(struct brcms_phy *pi, s8 rssi, u16 chanspec);
 
-extern bool wlc_phy_n_txpower_ipa_ison(struct brcms_phy *pih);
+bool wlc_phy_n_txpower_ipa_ison(struct brcms_phy *pih);
 #endif				/* _BRCM_PHY_INT_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/phy_shim.h b/drivers/net/wireless/brcm80211/brcmsmac/phy_shim.h
index 2c5b66b75970..dd8774717ade 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/phy_shim.h
+++ b/drivers/net/wireless/brcm80211/brcmsmac/phy_shim.h
@@ -124,56 +124,49 @@
 
 struct brcms_phy;
 
-extern struct phy_shim_info *wlc_phy_shim_attach(struct brcms_hardware *wlc_hw,
-						 struct brcms_info *wl,
-						 struct brcms_c_info *wlc);
-extern void wlc_phy_shim_detach(struct phy_shim_info *physhim);
+struct phy_shim_info *wlc_phy_shim_attach(struct brcms_hardware *wlc_hw,
+					  struct brcms_info *wl,
+					  struct brcms_c_info *wlc);
+void wlc_phy_shim_detach(struct phy_shim_info *physhim);
 
 /* PHY to WL utility functions */
-extern struct wlapi_timer *wlapi_init_timer(struct phy_shim_info *physhim,
-					    void (*fn) (struct brcms_phy *pi),
-					    void *arg, const char *name);
-extern void wlapi_free_timer(struct wlapi_timer *t);
-extern void wlapi_add_timer(struct wlapi_timer *t, uint ms, int periodic);
-extern bool wlapi_del_timer(struct wlapi_timer *t);
-extern void wlapi_intrson(struct phy_shim_info *physhim);
-extern u32 wlapi_intrsoff(struct phy_shim_info *physhim);
-extern void wlapi_intrsrestore(struct phy_shim_info *physhim,
-			       u32 macintmask);
-
-extern void wlapi_bmac_write_shm(struct phy_shim_info *physhim, uint offset,
-				 u16 v);
-extern u16 wlapi_bmac_read_shm(struct phy_shim_info *physhim, uint offset);
-extern void wlapi_bmac_mhf(struct phy_shim_info *physhim, u8 idx,
-			   u16 mask, u16 val, int bands);
-extern void wlapi_bmac_corereset(struct phy_shim_info *physhim, u32 flags);
-extern void wlapi_suspend_mac_and_wait(struct phy_shim_info *physhim);
-extern void wlapi_switch_macfreq(struct phy_shim_info *physhim, u8 spurmode);
-extern void wlapi_enable_mac(struct phy_shim_info *physhim);
-extern void wlapi_bmac_mctrl(struct phy_shim_info *physhim, u32 mask,
-			     u32 val);
-extern void wlapi_bmac_phy_reset(struct phy_shim_info *physhim);
-extern void wlapi_bmac_bw_set(struct phy_shim_info *physhim, u16 bw);
-extern void wlapi_bmac_phyclk_fgc(struct phy_shim_info *physhim, bool clk);
-extern void wlapi_bmac_macphyclk_set(struct phy_shim_info *physhim, bool clk);
-extern void wlapi_bmac_core_phypll_ctl(struct phy_shim_info *physhim, bool on);
-extern void wlapi_bmac_core_phypll_reset(struct phy_shim_info *physhim);
-extern void wlapi_bmac_ucode_wake_override_phyreg_set(struct phy_shim_info *
-						      physhim);
-extern void wlapi_bmac_ucode_wake_override_phyreg_clear(struct phy_shim_info *
-							physhim);
-extern void wlapi_bmac_write_template_ram(struct phy_shim_info *physhim, int o,
-					  int len, void *buf);
-extern u16 wlapi_bmac_rate_shm_offset(struct phy_shim_info *physhim,
-					 u8 rate);
-extern void wlapi_ucode_sample_init(struct phy_shim_info *physhim);
-extern void wlapi_copyfrom_objmem(struct phy_shim_info *physhim, uint,
-				  void *buf, int, u32 sel);
-extern void wlapi_copyto_objmem(struct phy_shim_info *physhim, uint,
-				const void *buf, int, u32);
-
-extern void wlapi_high_update_phy_mode(struct phy_shim_info *physhim,
-				       u32 phy_mode);
-extern u16 wlapi_bmac_get_txant(struct phy_shim_info *physhim);
+struct wlapi_timer *wlapi_init_timer(struct phy_shim_info *physhim,
+				     void (*fn)(struct brcms_phy *pi),
+				     void *arg, const char *name);
+void wlapi_free_timer(struct wlapi_timer *t);
+void wlapi_add_timer(struct wlapi_timer *t, uint ms, int periodic);
+bool wlapi_del_timer(struct wlapi_timer *t);
+void wlapi_intrson(struct phy_shim_info *physhim);
+u32 wlapi_intrsoff(struct phy_shim_info *physhim);
+void wlapi_intrsrestore(struct phy_shim_info *physhim, u32 macintmask);
+
+void wlapi_bmac_write_shm(struct phy_shim_info *physhim, uint offset, u16 v);
+u16 wlapi_bmac_read_shm(struct phy_shim_info *physhim, uint offset);
+void wlapi_bmac_mhf(struct phy_shim_info *physhim, u8 idx, u16 mask, u16 val,
+		    int bands);
+void wlapi_bmac_corereset(struct phy_shim_info *physhim, u32 flags);
+void wlapi_suspend_mac_and_wait(struct phy_shim_info *physhim);
+void wlapi_switch_macfreq(struct phy_shim_info *physhim, u8 spurmode);
+void wlapi_enable_mac(struct phy_shim_info *physhim);
+void wlapi_bmac_mctrl(struct phy_shim_info *physhim, u32 mask, u32 val);
+void wlapi_bmac_phy_reset(struct phy_shim_info *physhim);
+void wlapi_bmac_bw_set(struct phy_shim_info *physhim, u16 bw);
+void wlapi_bmac_phyclk_fgc(struct phy_shim_info *physhim, bool clk);
+void wlapi_bmac_macphyclk_set(struct phy_shim_info *physhim, bool clk);
+void wlapi_bmac_core_phypll_ctl(struct phy_shim_info *physhim, bool on);
+void wlapi_bmac_core_phypll_reset(struct phy_shim_info *physhim);
+void wlapi_bmac_ucode_wake_override_phyreg_set(struct phy_shim_info *physhim);
+void wlapi_bmac_ucode_wake_override_phyreg_clear(struct phy_shim_info *physhim);
+void wlapi_bmac_write_template_ram(struct phy_shim_info *physhim, int o,
+				   int len, void *buf);
+u16 wlapi_bmac_rate_shm_offset(struct phy_shim_info *physhim, u8 rate);
+void wlapi_ucode_sample_init(struct phy_shim_info *physhim);
+void wlapi_copyfrom_objmem(struct phy_shim_info *physhim, uint, void *buf,
+			   int, u32 sel);
+void wlapi_copyto_objmem(struct phy_shim_info *physhim, uint, const void *buf,
+			 int, u32);
+
+void wlapi_high_update_phy_mode(struct phy_shim_info *physhim, u32 phy_mode);
+u16 wlapi_bmac_get_txant(struct phy_shim_info *physhim);
 
 #endif				/* _BRCM_PHY_SHIM_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/pmu.h b/drivers/net/wireless/brcm80211/brcmsmac/pmu.h
index 20e2012d5a3a..a014bbc4f935 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/pmu.h
+++ b/drivers/net/wireless/brcm80211/brcmsmac/pmu.h
@@ -20,7 +20,7 @@
 
 #include "types.h"
 
-extern u16 si_pmu_fast_pwrup_delay(struct si_pub *sih);
-extern u32 si_pmu_measure_alpclk(struct si_pub *sih);
+u16 si_pmu_fast_pwrup_delay(struct si_pub *sih);
+u32 si_pmu_measure_alpclk(struct si_pub *sih);
 
 #endif /* _BRCM_PMU_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/pub.h b/drivers/net/wireless/brcm80211/brcmsmac/pub.h
index d36ea5e1cc49..4da38cb4f318 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/pub.h
+++ b/drivers/net/wireless/brcm80211/brcmsmac/pub.h
@@ -266,83 +266,76 @@ struct brcms_antselcfg {
 };
 
 /* common functions for every port */
-extern struct brcms_c_info *
-brcms_c_attach(struct brcms_info *wl, struct bcma_device *core, uint unit,
-	       bool piomode, uint *perr);
-extern uint brcms_c_detach(struct brcms_c_info *wlc);
-extern int brcms_c_up(struct brcms_c_info *wlc);
-extern uint brcms_c_down(struct brcms_c_info *wlc);
-
-extern bool brcms_c_chipmatch(struct bcma_device *core);
-extern void brcms_c_init(struct brcms_c_info *wlc, bool mute_tx);
-extern void brcms_c_reset(struct brcms_c_info *wlc);
-
-extern void brcms_c_intrson(struct brcms_c_info *wlc);
-extern u32 brcms_c_intrsoff(struct brcms_c_info *wlc);
-extern void brcms_c_intrsrestore(struct brcms_c_info *wlc, u32 macintmask);
-extern bool brcms_c_intrsupd(struct brcms_c_info *wlc);
-extern bool brcms_c_isr(struct brcms_c_info *wlc);
-extern bool brcms_c_dpc(struct brcms_c_info *wlc, bool bounded);
-extern bool brcms_c_sendpkt_mac80211(struct brcms_c_info *wlc,
-				     struct sk_buff *sdu,
-				     struct ieee80211_hw *hw);
-extern bool brcms_c_aggregatable(struct brcms_c_info *wlc, u8 tid);
-extern void brcms_c_protection_upd(struct brcms_c_info *wlc, uint idx,
-				   int val);
-extern int brcms_c_get_header_len(void);
-extern void brcms_c_set_addrmatch(struct brcms_c_info *wlc,
-				  int match_reg_offset,
-				  const u8 *addr);
-extern void brcms_c_wme_setparams(struct brcms_c_info *wlc, u16 aci,
-			      const struct ieee80211_tx_queue_params *arg,
-			      bool suspend);
-extern struct brcms_pub *brcms_c_pub(struct brcms_c_info *wlc);
-extern void brcms_c_ampdu_flush(struct brcms_c_info *wlc,
-			    struct ieee80211_sta *sta, u16 tid);
-extern void brcms_c_ampdu_tx_operational(struct brcms_c_info *wlc, u8 tid,
-					 u8 ba_wsize, uint max_rx_ampdu_bytes);
-extern int brcms_c_module_register(struct brcms_pub *pub,
-				   const char *name, struct brcms_info *hdl,
-				   int (*down_fn)(void *handle));
-extern int brcms_c_module_unregister(struct brcms_pub *pub, const char *name,
-				     struct brcms_info *hdl);
-extern void brcms_c_suspend_mac_and_wait(struct brcms_c_info *wlc);
-extern void brcms_c_enable_mac(struct brcms_c_info *wlc);
-extern void brcms_c_associate_upd(struct brcms_c_info *wlc, bool state);
-extern void brcms_c_scan_start(struct brcms_c_info *wlc);
-extern void brcms_c_scan_stop(struct brcms_c_info *wlc);
-extern int brcms_c_get_curband(struct brcms_c_info *wlc);
-extern int brcms_c_set_channel(struct brcms_c_info *wlc, u16 channel);
-extern int brcms_c_set_rate_limit(struct brcms_c_info *wlc, u16 srl, u16 lrl);
-extern void brcms_c_get_current_rateset(struct brcms_c_info *wlc,
+struct brcms_c_info *brcms_c_attach(struct brcms_info *wl,
+				    struct bcma_device *core, uint unit,
+				    bool piomode, uint *perr);
+uint brcms_c_detach(struct brcms_c_info *wlc);
+int brcms_c_up(struct brcms_c_info *wlc);
+uint brcms_c_down(struct brcms_c_info *wlc);
+
+bool brcms_c_chipmatch(struct bcma_device *core);
+void brcms_c_init(struct brcms_c_info *wlc, bool mute_tx);
+void brcms_c_reset(struct brcms_c_info *wlc);
+
+void brcms_c_intrson(struct brcms_c_info *wlc);
+u32 brcms_c_intrsoff(struct brcms_c_info *wlc);
+void brcms_c_intrsrestore(struct brcms_c_info *wlc, u32 macintmask);
+bool brcms_c_intrsupd(struct brcms_c_info *wlc);
+bool brcms_c_isr(struct brcms_c_info *wlc);
+bool brcms_c_dpc(struct brcms_c_info *wlc, bool bounded);
+bool brcms_c_sendpkt_mac80211(struct brcms_c_info *wlc, struct sk_buff *sdu,
+			      struct ieee80211_hw *hw);
+bool brcms_c_aggregatable(struct brcms_c_info *wlc, u8 tid);
+void brcms_c_protection_upd(struct brcms_c_info *wlc, uint idx, int val);
+int brcms_c_get_header_len(void);
+void brcms_c_set_addrmatch(struct brcms_c_info *wlc, int match_reg_offset,
+			   const u8 *addr);
+void brcms_c_wme_setparams(struct brcms_c_info *wlc, u16 aci,
+			   const struct ieee80211_tx_queue_params *arg,
+			   bool suspend);
+struct brcms_pub *brcms_c_pub(struct brcms_c_info *wlc);
+void brcms_c_ampdu_flush(struct brcms_c_info *wlc, struct ieee80211_sta *sta,
+			 u16 tid);
+void brcms_c_ampdu_tx_operational(struct brcms_c_info *wlc, u8 tid,
+				  u8 ba_wsize, uint max_rx_ampdu_bytes);
+int brcms_c_module_register(struct brcms_pub *pub, const char *name,
+			    struct brcms_info *hdl,
+			    int (*down_fn)(void *handle));
+int brcms_c_module_unregister(struct brcms_pub *pub, const char *name,
+			      struct brcms_info *hdl);
+void brcms_c_suspend_mac_and_wait(struct brcms_c_info *wlc);
+void brcms_c_enable_mac(struct brcms_c_info *wlc);
+void brcms_c_associate_upd(struct brcms_c_info *wlc, bool state);
+void brcms_c_scan_start(struct brcms_c_info *wlc);
+void brcms_c_scan_stop(struct brcms_c_info *wlc);
+int brcms_c_get_curband(struct brcms_c_info *wlc);
+int brcms_c_set_channel(struct brcms_c_info *wlc, u16 channel);
+int brcms_c_set_rate_limit(struct brcms_c_info *wlc, u16 srl, u16 lrl);
+void brcms_c_get_current_rateset(struct brcms_c_info *wlc,
 				 struct brcm_rateset *currs);
-extern int brcms_c_set_rateset(struct brcms_c_info *wlc,
-					struct brcm_rateset *rs);
-extern int brcms_c_set_beacon_period(struct brcms_c_info *wlc, u16 period);
-extern u16 brcms_c_get_phy_type(struct brcms_c_info *wlc, int phyidx);
-extern void brcms_c_set_shortslot_override(struct brcms_c_info *wlc,
+int brcms_c_set_rateset(struct brcms_c_info *wlc, struct brcm_rateset *rs);
+int brcms_c_set_beacon_period(struct brcms_c_info *wlc, u16 period);
+u16 brcms_c_get_phy_type(struct brcms_c_info *wlc, int phyidx);
+void brcms_c_set_shortslot_override(struct brcms_c_info *wlc,
 				    s8 sslot_override);
-extern void brcms_c_set_beacon_listen_interval(struct brcms_c_info *wlc,
-					u8 interval);
-extern u64 brcms_c_tsf_get(struct brcms_c_info *wlc);
-extern void brcms_c_tsf_set(struct brcms_c_info *wlc, u64 tsf);
-extern int brcms_c_set_tx_power(struct brcms_c_info *wlc, int txpwr);
-extern int brcms_c_get_tx_power(struct brcms_c_info *wlc);
-extern bool brcms_c_check_radio_disabled(struct brcms_c_info *wlc);
-extern void brcms_c_mute(struct brcms_c_info *wlc, bool on);
-extern bool brcms_c_tx_flush_completed(struct brcms_c_info *wlc);
-extern void brcms_c_start_station(struct brcms_c_info *wlc, u8 *addr);
-extern void brcms_c_start_ap(struct brcms_c_info *wlc, u8 *addr,
-			     const u8 *bssid, u8 *ssid, size_t ssid_len);
-extern void brcms_c_start_adhoc(struct brcms_c_info *wlc, u8 *addr);
-extern void brcms_c_update_beacon(struct brcms_c_info *wlc);
-extern void brcms_c_set_new_beacon(struct brcms_c_info *wlc,
-				   struct sk_buff *beacon, u16 tim_offset,
-				   u16 dtim_period);
-extern void brcms_c_set_new_probe_resp(struct brcms_c_info *wlc,
-				       struct sk_buff *probe_resp);
-extern void brcms_c_enable_probe_resp(struct brcms_c_info *wlc, bool enable);
-extern void brcms_c_set_ssid(struct brcms_c_info *wlc, u8 *ssid,
-			     size_t ssid_len);
+void brcms_c_set_beacon_listen_interval(struct brcms_c_info *wlc, u8 interval);
+u64 brcms_c_tsf_get(struct brcms_c_info *wlc);
+void brcms_c_tsf_set(struct brcms_c_info *wlc, u64 tsf);
+int brcms_c_set_tx_power(struct brcms_c_info *wlc, int txpwr);
+int brcms_c_get_tx_power(struct brcms_c_info *wlc);
+bool brcms_c_check_radio_disabled(struct brcms_c_info *wlc);
+void brcms_c_mute(struct brcms_c_info *wlc, bool on);
+bool brcms_c_tx_flush_completed(struct brcms_c_info *wlc);
+void brcms_c_start_station(struct brcms_c_info *wlc, u8 *addr);
+void brcms_c_start_ap(struct brcms_c_info *wlc, u8 *addr, const u8 *bssid,
+		      u8 *ssid, size_t ssid_len);
+void brcms_c_start_adhoc(struct brcms_c_info *wlc, u8 *addr);
+void brcms_c_update_beacon(struct brcms_c_info *wlc);
+void brcms_c_set_new_beacon(struct brcms_c_info *wlc, struct sk_buff *beacon,
+			    u16 tim_offset, u16 dtim_period);
+void brcms_c_set_new_probe_resp(struct brcms_c_info *wlc,
+				struct sk_buff *probe_resp);
+void brcms_c_enable_probe_resp(struct brcms_c_info *wlc, bool enable);
+void brcms_c_set_ssid(struct brcms_c_info *wlc, u8 *ssid, size_t ssid_len);
 
 #endif				/* _BRCM_PUB_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/rate.h b/drivers/net/wireless/brcm80211/brcmsmac/rate.h
index 980d578825cc..5bb88b78ed64 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/rate.h
+++ b/drivers/net/wireless/brcm80211/brcmsmac/rate.h
@@ -216,34 +216,30 @@ static inline u8 cck_phy2mac_rate(u8 signal)
 
 /* sanitize, and sort a rateset with the basic bit(s) preserved, validate
  * rateset */
-extern bool
-brcms_c_rate_hwrs_filter_sort_validate(struct brcms_c_rateset *rs,
-				       const struct brcms_c_rateset *hw_rs,
-				       bool check_brate, u8 txstreams);
+bool brcms_c_rate_hwrs_filter_sort_validate(struct brcms_c_rateset *rs,
+					    const struct brcms_c_rateset *hw_rs,
+					    bool check_brate, u8 txstreams);
 /* copy rateset src to dst as-is (no masking or sorting) */
-extern void brcms_c_rateset_copy(const struct brcms_c_rateset *src,
-			     struct brcms_c_rateset *dst);
+void brcms_c_rateset_copy(const struct brcms_c_rateset *src,
+			  struct brcms_c_rateset *dst);
 
 /* would be nice to have these documented ... */
-extern u32 brcms_c_compute_rspec(struct d11rxhdr *rxh, u8 *plcp);
-
-extern void brcms_c_rateset_filter(struct brcms_c_rateset *src,
-	struct brcms_c_rateset *dst, bool basic_only, u8 rates, uint xmask,
-	bool mcsallow);
-
-extern void
-brcms_c_rateset_default(struct brcms_c_rateset *rs_tgt,
-			const struct brcms_c_rateset *rs_hw, uint phy_type,
-			int bandtype, bool cck_only, uint rate_mask,
-			bool mcsallow, u8 bw, u8 txstreams);
-
-extern s16 brcms_c_rate_legacy_phyctl(uint rate);
-
-extern void brcms_c_rateset_mcs_upd(struct brcms_c_rateset *rs, u8 txstreams);
-extern void brcms_c_rateset_mcs_clear(struct brcms_c_rateset *rateset);
-extern void brcms_c_rateset_mcs_build(struct brcms_c_rateset *rateset,
-				      u8 txstreams);
-extern void brcms_c_rateset_bw_mcs_filter(struct brcms_c_rateset *rateset,
-					  u8 bw);
+u32 brcms_c_compute_rspec(struct d11rxhdr *rxh, u8 *plcp);
+
+void brcms_c_rateset_filter(struct brcms_c_rateset *src,
+			    struct brcms_c_rateset *dst, bool basic_only,
+			    u8 rates, uint xmask, bool mcsallow);
+
+void brcms_c_rateset_default(struct brcms_c_rateset *rs_tgt,
+			     const struct brcms_c_rateset *rs_hw, uint phy_type,
+			     int bandtype, bool cck_only, uint rate_mask,
+			     bool mcsallow, u8 bw, u8 txstreams);
+
+s16 brcms_c_rate_legacy_phyctl(uint rate);
+
+void brcms_c_rateset_mcs_upd(struct brcms_c_rateset *rs, u8 txstreams);
+void brcms_c_rateset_mcs_clear(struct brcms_c_rateset *rateset);
+void brcms_c_rateset_mcs_build(struct brcms_c_rateset *rateset, u8 txstreams);
+void brcms_c_rateset_bw_mcs_filter(struct brcms_c_rateset *rateset, u8 bw);
 
 #endif				/* _BRCM_RATE_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/stf.h b/drivers/net/wireless/brcm80211/brcmsmac/stf.h
index 19f6580f69be..ba9493009a33 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/stf.h
+++ b/drivers/net/wireless/brcm80211/brcmsmac/stf.h
@@ -19,24 +19,19 @@
 
 #include "types.h"
 
-extern int brcms_c_stf_attach(struct brcms_c_info *wlc);
-extern void brcms_c_stf_detach(struct brcms_c_info *wlc);
+int brcms_c_stf_attach(struct brcms_c_info *wlc);
+void brcms_c_stf_detach(struct brcms_c_info *wlc);
 
-extern void brcms_c_tempsense_upd(struct brcms_c_info *wlc);
-extern void brcms_c_stf_ss_algo_channel_get(struct brcms_c_info *wlc,
-					u16 *ss_algo_channel,
-					u16 chanspec);
-extern int brcms_c_stf_ss_update(struct brcms_c_info *wlc,
-			     struct brcms_band *band);
-extern void brcms_c_stf_phy_txant_upd(struct brcms_c_info *wlc);
-extern int brcms_c_stf_txchain_set(struct brcms_c_info *wlc, s32 int_val,
-			       bool force);
-extern bool brcms_c_stf_stbc_rx_set(struct brcms_c_info *wlc, s32 int_val);
-extern void brcms_c_stf_phy_txant_upd(struct brcms_c_info *wlc);
-extern void brcms_c_stf_phy_chain_calc(struct brcms_c_info *wlc);
-extern u16 brcms_c_stf_phytxchain_sel(struct brcms_c_info *wlc,
-				      u32 rspec);
-extern u16 brcms_c_stf_d11hdrs_phyctl_txant(struct brcms_c_info *wlc,
-					u32 rspec);
+void brcms_c_tempsense_upd(struct brcms_c_info *wlc);
+void brcms_c_stf_ss_algo_channel_get(struct brcms_c_info *wlc,
+				     u16 *ss_algo_channel, u16 chanspec);
+int brcms_c_stf_ss_update(struct brcms_c_info *wlc, struct brcms_band *band);
+void brcms_c_stf_phy_txant_upd(struct brcms_c_info *wlc);
+int brcms_c_stf_txchain_set(struct brcms_c_info *wlc, s32 int_val, bool force);
+bool brcms_c_stf_stbc_rx_set(struct brcms_c_info *wlc, s32 int_val);
+void brcms_c_stf_phy_txant_upd(struct brcms_c_info *wlc);
+void brcms_c_stf_phy_chain_calc(struct brcms_c_info *wlc);
+u16 brcms_c_stf_phytxchain_sel(struct brcms_c_info *wlc, u32 rspec);
+u16 brcms_c_stf_d11hdrs_phyctl_txant(struct brcms_c_info *wlc, u32 rspec);
 
 #endif				/* _BRCM_STF_H_ */
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/ucode_loader.h b/drivers/net/wireless/brcm80211/brcmsmac/ucode_loader.h
index 18750a814b4f..c87dd89bcb78 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/ucode_loader.h
+++ b/drivers/net/wireless/brcm80211/brcmsmac/ucode_loader.h
@@ -43,16 +43,14 @@ struct brcms_ucode {
 	u32 *bcm43xx_bomminor;
 };
 
-extern int
-brcms_ucode_data_init(struct brcms_info *wl, struct brcms_ucode *ucode);
+int brcms_ucode_data_init(struct brcms_info *wl, struct brcms_ucode *ucode);
 
-extern void brcms_ucode_data_free(struct brcms_ucode *ucode);
+void brcms_ucode_data_free(struct brcms_ucode *ucode);
 
-extern int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf,
-				unsigned int idx);
-extern int brcms_ucode_init_uint(struct brcms_info *wl, size_t *n_bytes,
-				 unsigned int idx);
-extern void brcms_ucode_free_buf(void *);
-extern int  brcms_check_firmwares(struct brcms_info *wl);
+int brcms_ucode_init_buf(struct brcms_info *wl, void **pbuf, unsigned int idx);
+int brcms_ucode_init_uint(struct brcms_info *wl, size_t *n_bytes,
+			  unsigned int idx);
+void brcms_ucode_free_buf(void *);
+int  brcms_check_firmwares(struct brcms_info *wl);
 
 #endif	/* _BRCM_UCODE_H_ */
diff --git a/drivers/net/wireless/brcm80211/include/brcmu_d11.h b/drivers/net/wireless/brcm80211/include/brcmu_d11.h
index 92623f02b1c0..8660a2cba098 100644
--- a/drivers/net/wireless/brcm80211/include/brcmu_d11.h
+++ b/drivers/net/wireless/brcm80211/include/brcmu_d11.h
@@ -140,6 +140,6 @@ struct brcmu_d11inf {
 	void (*decchspec)(struct brcmu_chan *ch);
 };
 
-extern void brcmu_d11_attach(struct brcmu_d11inf *d11inf);
+void brcmu_d11_attach(struct brcmu_d11inf *d11inf);
 
 #endif	/* _BRCMU_CHANNELS_H_ */
diff --git a/drivers/net/wireless/brcm80211/include/brcmu_utils.h b/drivers/net/wireless/brcm80211/include/brcmu_utils.h
index 898cacb8d01d..8ba445b3fd72 100644
--- a/drivers/net/wireless/brcm80211/include/brcmu_utils.h
+++ b/drivers/net/wireless/brcm80211/include/brcmu_utils.h
@@ -114,31 +114,29 @@ static inline struct sk_buff *pktq_ppeek_tail(struct pktq *pq, int prec)
 	return skb_peek_tail(&pq->q[prec].skblist);
 }
 
-extern struct sk_buff *brcmu_pktq_penq(struct pktq *pq, int prec,
-				 struct sk_buff *p);
-extern struct sk_buff *brcmu_pktq_penq_head(struct pktq *pq, int prec,
-				      struct sk_buff *p);
-extern struct sk_buff *brcmu_pktq_pdeq(struct pktq *pq, int prec);
-extern struct sk_buff *brcmu_pktq_pdeq_tail(struct pktq *pq, int prec);
-extern struct sk_buff *brcmu_pktq_pdeq_match(struct pktq *pq, int prec,
-					     bool (*match_fn)(struct sk_buff *p,
-							      void *arg),
-					     void *arg);
+struct sk_buff *brcmu_pktq_penq(struct pktq *pq, int prec, struct sk_buff *p);
+struct sk_buff *brcmu_pktq_penq_head(struct pktq *pq, int prec,
+				     struct sk_buff *p);
+struct sk_buff *brcmu_pktq_pdeq(struct pktq *pq, int prec);
+struct sk_buff *brcmu_pktq_pdeq_tail(struct pktq *pq, int prec);
+struct sk_buff *brcmu_pktq_pdeq_match(struct pktq *pq, int prec,
+				      bool (*match_fn)(struct sk_buff *p,
+						       void *arg),
+				      void *arg);
 
 /* packet primitives */
-extern struct sk_buff *brcmu_pkt_buf_get_skb(uint len);
-extern void brcmu_pkt_buf_free_skb(struct sk_buff *skb);
+struct sk_buff *brcmu_pkt_buf_get_skb(uint len);
+void brcmu_pkt_buf_free_skb(struct sk_buff *skb);
 
 /* Empty the queue at particular precedence level */
 /* callback function fn(pkt, arg) returns true if pkt belongs to if */
-extern void brcmu_pktq_pflush(struct pktq *pq, int prec,
-	bool dir, bool (*fn)(struct sk_buff *, void *), void *arg);
+void brcmu_pktq_pflush(struct pktq *pq, int prec, bool dir,
+		       bool (*fn)(struct sk_buff *, void *), void *arg);
 
 /* operations on a set of precedences in packet queue */
 
-extern int brcmu_pktq_mlen(struct pktq *pq, uint prec_bmp);
-extern struct sk_buff *brcmu_pktq_mdeq(struct pktq *pq, uint prec_bmp,
-	int *prec_out);
+int brcmu_pktq_mlen(struct pktq *pq, uint prec_bmp);
+struct sk_buff *brcmu_pktq_mdeq(struct pktq *pq, uint prec_bmp, int *prec_out);
 
 /* operations on packet queue as a whole */
 
@@ -167,11 +165,11 @@ static inline bool pktq_empty(struct pktq *pq)
 	return pq->len == 0;
 }
 
-extern void brcmu_pktq_init(struct pktq *pq, int num_prec, int max_len);
+void brcmu_pktq_init(struct pktq *pq, int num_prec, int max_len);
 /* prec_out may be NULL if caller is not interested in return value */
-extern struct sk_buff *brcmu_pktq_peek_tail(struct pktq *pq, int *prec_out);
-extern void brcmu_pktq_flush(struct pktq *pq, bool dir,
-		bool (*fn)(struct sk_buff *, void *), void *arg);
+struct sk_buff *brcmu_pktq_peek_tail(struct pktq *pq, int *prec_out);
+void brcmu_pktq_flush(struct pktq *pq, bool dir,
+		      bool (*fn)(struct sk_buff *, void *), void *arg);
 
 /* externs */
 /* ip address */
@@ -204,13 +202,13 @@ static inline u16 brcmu_maskget16(u16 var, u16 mask, u8 shift)
 /* externs */
 /* format/print */
 #ifdef DEBUG
-extern void brcmu_prpkt(const char *msg, struct sk_buff *p0);
+void brcmu_prpkt(const char *msg, struct sk_buff *p0);
 #else
 #define brcmu_prpkt(a, b)
 #endif				/* DEBUG */
 
 #ifdef DEBUG
-extern __printf(3, 4)
+__printf(3, 4)
 void brcmu_dbg_hex_dump(const void *data, size_t size, const char *fmt, ...);
 #else
 __printf(3, 4)
-- 
cgit 


From 5ce3f32b5264b337bfd13a780452a17705307725 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Wed, 28 Aug 2013 00:47:24 +0200
Subject: NFC: netlink: SE API implementation

Implementation of the NFC_CMD_SE_IO command for sending ISO7816 APDUs to
NFC embedded secure elements. The reply is forwarded to user space
through NFC_CMD_SE_IO as well.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 net/nfc/netlink.c | 91 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)

diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index 68063b2025da..a3dee05cb64b 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -58,6 +58,7 @@ static const struct nla_policy nfc_genl_policy[NFC_ATTR_MAX + 1] = {
 	[NFC_ATTR_LLC_SDP] = { .type = NLA_NESTED },
 	[NFC_ATTR_FIRMWARE_NAME] = { .type = NLA_STRING,
 				     .len = NFC_FIRMWARE_NAME_MAXSIZE },
+	[NFC_ATTR_SE_APDU] = { .type = NLA_BINARY },
 };
 
 static const struct nla_policy nfc_sdp_genl_policy[NFC_SDP_ATTR_MAX + 1] = {
@@ -1278,6 +1279,91 @@ static int nfc_genl_dump_ses_done(struct netlink_callback *cb)
 	return 0;
 }
 
+struct se_io_ctx {
+	u32 dev_idx;
+	u32 se_idx;
+};
+
+void se_io_cb(void *context, u8 *apdu, size_t apdu_len, int err)
+{
+	struct se_io_ctx *ctx = context;
+	struct sk_buff *msg;
+	void *hdr;
+
+	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+	if (!msg) {
+		kfree(ctx);
+		return;
+	}
+
+	hdr = genlmsg_put(msg, 0, 0, &nfc_genl_family, 0,
+			  NFC_CMD_SE_IO);
+	if (!hdr)
+		goto free_msg;
+
+	if (nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, ctx->dev_idx) ||
+	    nla_put_u32(msg, NFC_ATTR_SE_INDEX, ctx->se_idx) ||
+	    nla_put(msg, NFC_ATTR_SE_APDU, apdu_len, apdu))
+		goto nla_put_failure;
+
+	genlmsg_end(msg, hdr);
+
+	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+
+	kfree(ctx);
+
+	return;
+
+nla_put_failure:
+	genlmsg_cancel(msg, hdr);
+free_msg:
+	nlmsg_free(msg);
+	kfree(ctx);
+
+	return;
+}
+
+static int nfc_genl_se_io(struct sk_buff *skb, struct genl_info *info)
+{
+	struct nfc_dev *dev;
+	struct se_io_ctx *ctx;
+	u32 dev_idx, se_idx;
+	u8 *apdu;
+	size_t apdu_len;
+
+	if (!info->attrs[NFC_ATTR_DEVICE_INDEX] ||
+	    !info->attrs[NFC_ATTR_SE_INDEX] ||
+	    !info->attrs[NFC_ATTR_SE_APDU])
+		return -EINVAL;
+
+	dev_idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]);
+	se_idx = nla_get_u32(info->attrs[NFC_ATTR_SE_INDEX]);
+
+	dev = nfc_get_device(dev_idx);
+	if (!dev)
+		return -ENODEV;
+
+	if (!dev->ops || !dev->ops->se_io)
+		return -ENOTSUPP;
+
+	apdu_len = nla_len(info->attrs[NFC_ATTR_SE_APDU]);
+	if (apdu_len == 0)
+		return -EINVAL;
+
+	apdu = nla_data(info->attrs[NFC_ATTR_SE_APDU]);
+	if (!apdu)
+		return -EINVAL;
+
+	ctx = kzalloc(sizeof(struct se_io_ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	ctx->dev_idx = dev_idx;
+	ctx->se_idx = se_idx;
+
+	return dev->ops->se_io(dev, se_idx, apdu, apdu_len, se_io_cb, ctx);
+}
+
 static struct genl_ops nfc_genl_ops[] = {
 	{
 		.cmd = NFC_CMD_GET_DEVICE,
@@ -1358,6 +1444,11 @@ static struct genl_ops nfc_genl_ops[] = {
 		.done = nfc_genl_dump_ses_done,
 		.policy = nfc_genl_policy,
 	},
+	{
+		.cmd = NFC_CMD_SE_IO,
+		.doit = nfc_genl_se_io,
+		.policy = nfc_genl_policy,
+	},
 };
 
 
-- 
cgit 


From 89eb744f1a77b32d6ec718618f356df3188403e7 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: ipw2x00: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/wireless/ipw2x00/libipw.h | 87 +++++++++++++++--------------------
 1 file changed, 38 insertions(+), 49 deletions(-)

diff --git a/drivers/net/wireless/ipw2x00/libipw.h b/drivers/net/wireless/ipw2x00/libipw.h
index 6eede52ad8c0..5ce2f59d3378 100644
--- a/drivers/net/wireless/ipw2x00/libipw.h
+++ b/drivers/net/wireless/ipw2x00/libipw.h
@@ -950,66 +950,55 @@ static inline int libipw_is_cck_rate(u8 rate)
 }
 
 /* libipw.c */
-extern void free_libipw(struct net_device *dev, int monitor);
-extern struct net_device *alloc_libipw(int sizeof_priv, int monitor);
-extern int libipw_change_mtu(struct net_device *dev, int new_mtu);
+void free_libipw(struct net_device *dev, int monitor);
+struct net_device *alloc_libipw(int sizeof_priv, int monitor);
+int libipw_change_mtu(struct net_device *dev, int new_mtu);
 
-extern void libipw_networks_age(struct libipw_device *ieee,
-				   unsigned long age_secs);
+void libipw_networks_age(struct libipw_device *ieee, unsigned long age_secs);
 
-extern int libipw_set_encryption(struct libipw_device *ieee);
+int libipw_set_encryption(struct libipw_device *ieee);
 
 /* libipw_tx.c */
-extern netdev_tx_t libipw_xmit(struct sk_buff *skb,
-			       struct net_device *dev);
-extern void libipw_txb_free(struct libipw_txb *);
+netdev_tx_t libipw_xmit(struct sk_buff *skb, struct net_device *dev);
+void libipw_txb_free(struct libipw_txb *);
 
 /* libipw_rx.c */
-extern void libipw_rx_any(struct libipw_device *ieee,
-		     struct sk_buff *skb, struct libipw_rx_stats *stats);
-extern int libipw_rx(struct libipw_device *ieee, struct sk_buff *skb,
-			struct libipw_rx_stats *rx_stats);
+void libipw_rx_any(struct libipw_device *ieee, struct sk_buff *skb,
+		   struct libipw_rx_stats *stats);
+int libipw_rx(struct libipw_device *ieee, struct sk_buff *skb,
+	      struct libipw_rx_stats *rx_stats);
 /* make sure to set stats->len */
-extern void libipw_rx_mgt(struct libipw_device *ieee,
-			     struct libipw_hdr_4addr *header,
-			     struct libipw_rx_stats *stats);
-extern void libipw_network_reset(struct libipw_network *network);
+void libipw_rx_mgt(struct libipw_device *ieee, struct libipw_hdr_4addr *header,
+		   struct libipw_rx_stats *stats);
+void libipw_network_reset(struct libipw_network *network);
 
 /* libipw_geo.c */
-extern const struct libipw_geo *libipw_get_geo(struct libipw_device
-						     *ieee);
-extern void libipw_set_geo(struct libipw_device *ieee,
-			     const struct libipw_geo *geo);
-
-extern int libipw_is_valid_channel(struct libipw_device *ieee,
-				      u8 channel);
-extern int libipw_channel_to_index(struct libipw_device *ieee,
-				      u8 channel);
-extern u8 libipw_freq_to_channel(struct libipw_device *ieee, u32 freq);
-extern u8 libipw_get_channel_flags(struct libipw_device *ieee,
-				      u8 channel);
-extern const struct libipw_channel *libipw_get_channel(struct
-							     libipw_device
-							     *ieee, u8 channel);
-extern u32 libipw_channel_to_freq(struct libipw_device * ieee,
-				      u8 channel);
+const struct libipw_geo *libipw_get_geo(struct libipw_device *ieee);
+void libipw_set_geo(struct libipw_device *ieee, const struct libipw_geo *geo);
+
+int libipw_is_valid_channel(struct libipw_device *ieee, u8 channel);
+int libipw_channel_to_index(struct libipw_device *ieee, u8 channel);
+u8 libipw_freq_to_channel(struct libipw_device *ieee, u32 freq);
+u8 libipw_get_channel_flags(struct libipw_device *ieee, u8 channel);
+const struct libipw_channel *libipw_get_channel(struct libipw_device *ieee,
+						u8 channel);
+u32 libipw_channel_to_freq(struct libipw_device *ieee, u8 channel);
 
 /* libipw_wx.c */
-extern int libipw_wx_get_scan(struct libipw_device *ieee,
-				 struct iw_request_info *info,
-				 union iwreq_data *wrqu, char *key);
-extern int libipw_wx_set_encode(struct libipw_device *ieee,
-				   struct iw_request_info *info,
-				   union iwreq_data *wrqu, char *key);
-extern int libipw_wx_get_encode(struct libipw_device *ieee,
-				   struct iw_request_info *info,
-				   union iwreq_data *wrqu, char *key);
-extern int libipw_wx_set_encodeext(struct libipw_device *ieee,
-				      struct iw_request_info *info,
-				      union iwreq_data *wrqu, char *extra);
-extern int libipw_wx_get_encodeext(struct libipw_device *ieee,
-				      struct iw_request_info *info,
-				      union iwreq_data *wrqu, char *extra);
+int libipw_wx_get_scan(struct libipw_device *ieee, struct iw_request_info *info,
+		       union iwreq_data *wrqu, char *key);
+int libipw_wx_set_encode(struct libipw_device *ieee,
+			 struct iw_request_info *info, union iwreq_data *wrqu,
+			 char *key);
+int libipw_wx_get_encode(struct libipw_device *ieee,
+			 struct iw_request_info *info, union iwreq_data *wrqu,
+			 char *key);
+int libipw_wx_set_encodeext(struct libipw_device *ieee,
+			    struct iw_request_info *info,
+			    union iwreq_data *wrqu, char *extra);
+int libipw_wx_get_encodeext(struct libipw_device *ieee,
+			    struct iw_request_info *info,
+			    union iwreq_data *wrqu, char *extra);
 
 static inline void libipw_increment_scans(struct libipw_device *ieee)
 {
-- 
cgit 


From 6890ba72f5e1061261e26e04dcb936da4d10a1b1 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: iwlegacy: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/wireless/iwlegacy/3945.h   | 82 ++++++++++++++++------------------
 drivers/net/wireless/iwlegacy/4965.h   |  2 +-
 drivers/net/wireless/iwlegacy/common.h | 66 +++++++++++++--------------
 3 files changed, 73 insertions(+), 77 deletions(-)

diff --git a/drivers/net/wireless/iwlegacy/3945.h b/drivers/net/wireless/iwlegacy/3945.h
index 9a8703def0ba..00030d43a194 100644
--- a/drivers/net/wireless/iwlegacy/3945.h
+++ b/drivers/net/wireless/iwlegacy/3945.h
@@ -189,15 +189,14 @@ struct il3945_ibss_seq {
  * for use by iwl-*.c
  *
  *****************************************************************************/
-extern int il3945_calc_db_from_ratio(int sig_ratio);
-extern void il3945_rx_replenish(void *data);
-extern void il3945_rx_queue_reset(struct il_priv *il, struct il_rx_queue *rxq);
-extern unsigned int il3945_fill_beacon_frame(struct il_priv *il,
-					     struct ieee80211_hdr *hdr,
-					     int left);
-extern int il3945_dump_nic_event_log(struct il_priv *il, bool full_log,
-				     char **buf, bool display);
-extern void il3945_dump_nic_error_log(struct il_priv *il);
+int il3945_calc_db_from_ratio(int sig_ratio);
+void il3945_rx_replenish(void *data);
+void il3945_rx_queue_reset(struct il_priv *il, struct il_rx_queue *rxq);
+unsigned int il3945_fill_beacon_frame(struct il_priv *il,
+				      struct ieee80211_hdr *hdr, int left);
+int il3945_dump_nic_event_log(struct il_priv *il, bool full_log, char **buf,
+			      bool display);
+void il3945_dump_nic_error_log(struct il_priv *il);
 
 /******************************************************************************
  *
@@ -215,39 +214,36 @@ extern void il3945_dump_nic_error_log(struct il_priv *il);
  * il3945_mac_     <-- mac80211 callback
  *
  ****************************************************************************/
-extern void il3945_hw_handler_setup(struct il_priv *il);
-extern void il3945_hw_setup_deferred_work(struct il_priv *il);
-extern void il3945_hw_cancel_deferred_work(struct il_priv *il);
-extern int il3945_hw_rxq_stop(struct il_priv *il);
-extern int il3945_hw_set_hw_params(struct il_priv *il);
-extern int il3945_hw_nic_init(struct il_priv *il);
-extern int il3945_hw_nic_stop_master(struct il_priv *il);
-extern void il3945_hw_txq_ctx_free(struct il_priv *il);
-extern void il3945_hw_txq_ctx_stop(struct il_priv *il);
-extern int il3945_hw_nic_reset(struct il_priv *il);
-extern int il3945_hw_txq_attach_buf_to_tfd(struct il_priv *il,
-					   struct il_tx_queue *txq,
-					   dma_addr_t addr, u16 len, u8 reset,
-					   u8 pad);
-extern void il3945_hw_txq_free_tfd(struct il_priv *il, struct il_tx_queue *txq);
-extern int il3945_hw_get_temperature(struct il_priv *il);
-extern int il3945_hw_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq);
-extern unsigned int il3945_hw_get_beacon_cmd(struct il_priv *il,
-					     struct il3945_frame *frame,
-					     u8 rate);
+void il3945_hw_handler_setup(struct il_priv *il);
+void il3945_hw_setup_deferred_work(struct il_priv *il);
+void il3945_hw_cancel_deferred_work(struct il_priv *il);
+int il3945_hw_rxq_stop(struct il_priv *il);
+int il3945_hw_set_hw_params(struct il_priv *il);
+int il3945_hw_nic_init(struct il_priv *il);
+int il3945_hw_nic_stop_master(struct il_priv *il);
+void il3945_hw_txq_ctx_free(struct il_priv *il);
+void il3945_hw_txq_ctx_stop(struct il_priv *il);
+int il3945_hw_nic_reset(struct il_priv *il);
+int il3945_hw_txq_attach_buf_to_tfd(struct il_priv *il, struct il_tx_queue *txq,
+				    dma_addr_t addr, u16 len, u8 reset, u8 pad);
+void il3945_hw_txq_free_tfd(struct il_priv *il, struct il_tx_queue *txq);
+int il3945_hw_get_temperature(struct il_priv *il);
+int il3945_hw_tx_queue_init(struct il_priv *il, struct il_tx_queue *txq);
+unsigned int il3945_hw_get_beacon_cmd(struct il_priv *il,
+				      struct il3945_frame *frame, u8 rate);
 void il3945_hw_build_tx_cmd_rate(struct il_priv *il, struct il_device_cmd *cmd,
 				 struct ieee80211_tx_info *info,
 				 struct ieee80211_hdr *hdr, int sta_id);
-extern int il3945_hw_reg_send_txpower(struct il_priv *il);
-extern int il3945_hw_reg_set_txpower(struct il_priv *il, s8 power);
-extern void il3945_hdl_stats(struct il_priv *il, struct il_rx_buf *rxb);
+int il3945_hw_reg_send_txpower(struct il_priv *il);
+int il3945_hw_reg_set_txpower(struct il_priv *il, s8 power);
+void il3945_hdl_stats(struct il_priv *il, struct il_rx_buf *rxb);
 void il3945_hdl_c_stats(struct il_priv *il, struct il_rx_buf *rxb);
-extern void il3945_disable_events(struct il_priv *il);
-extern int il4965_get_temperature(const struct il_priv *il);
-extern void il3945_post_associate(struct il_priv *il);
-extern void il3945_config_ap(struct il_priv *il);
+void il3945_disable_events(struct il_priv *il);
+int il4965_get_temperature(const struct il_priv *il);
+void il3945_post_associate(struct il_priv *il);
+void il3945_config_ap(struct il_priv *il);
 
-extern int il3945_commit_rxon(struct il_priv *il);
+int il3945_commit_rxon(struct il_priv *il);
 
 /**
  * il3945_hw_find_station - Find station id for a given BSSID
@@ -257,14 +253,14 @@ extern int il3945_commit_rxon(struct il_priv *il);
  * not yet been merged into a single common layer for managing the
  * station tables.
  */
-extern u8 il3945_hw_find_station(struct il_priv *il, const u8 * bssid);
+u8 il3945_hw_find_station(struct il_priv *il, const u8 *bssid);
 
-extern __le32 il3945_get_antenna_flags(const struct il_priv *il);
-extern int il3945_init_hw_rate_table(struct il_priv *il);
-extern void il3945_reg_txpower_periodic(struct il_priv *il);
-extern int il3945_txpower_set_from_eeprom(struct il_priv *il);
+__le32 il3945_get_antenna_flags(const struct il_priv *il);
+int il3945_init_hw_rate_table(struct il_priv *il);
+void il3945_reg_txpower_periodic(struct il_priv *il);
+int il3945_txpower_set_from_eeprom(struct il_priv *il);
 
-extern int il3945_rs_next_rate(struct il_priv *il, int rate);
+int il3945_rs_next_rate(struct il_priv *il, int rate);
 
 /* scanning */
 int il3945_request_scan(struct il_priv *il, struct ieee80211_vif *vif);
diff --git a/drivers/net/wireless/iwlegacy/4965.h b/drivers/net/wireless/iwlegacy/4965.h
index 1b15b0b2292b..337dfcf3bbde 100644
--- a/drivers/net/wireless/iwlegacy/4965.h
+++ b/drivers/net/wireless/iwlegacy/4965.h
@@ -272,7 +272,7 @@ il4965_hw_valid_rtc_data_addr(u32 addr)
 	((t) < IL_TX_POWER_TEMPERATURE_MIN || \
 	 (t) > IL_TX_POWER_TEMPERATURE_MAX)
 
-extern void il4965_temperature_calib(struct il_priv *il);
+void il4965_temperature_calib(struct il_priv *il);
 /********************* END TEMPERATURE ***************************************/
 
 /********************* START TXPOWER *****************************************/
diff --git a/drivers/net/wireless/iwlegacy/common.h b/drivers/net/wireless/iwlegacy/common.h
index 83f8ed8a5528..ad123d66ab6c 100644
--- a/drivers/net/wireless/iwlegacy/common.h
+++ b/drivers/net/wireless/iwlegacy/common.h
@@ -858,9 +858,9 @@ struct il_hw_params {
  * il4965_mac_     <-- mac80211 callback
  *
  ****************************************************************************/
-extern void il4965_update_chain_flags(struct il_priv *il);
+void il4965_update_chain_flags(struct il_priv *il);
 extern const u8 il_bcast_addr[ETH_ALEN];
-extern int il_queue_space(const struct il_queue *q);
+int il_queue_space(const struct il_queue *q);
 static inline int
 il_queue_used(const struct il_queue *q, int i)
 {
@@ -1727,7 +1727,7 @@ int il_alloc_txq_mem(struct il_priv *il);
 void il_free_txq_mem(struct il_priv *il);
 
 #ifdef CONFIG_IWLEGACY_DEBUGFS
-extern void il_update_stats(struct il_priv *il, bool is_tx, __le16 fc, u16 len);
+void il_update_stats(struct il_priv *il, bool is_tx, __le16 fc, u16 len);
 #else
 static inline void
 il_update_stats(struct il_priv *il, bool is_tx, __le16 fc, u16 len)
@@ -1760,12 +1760,12 @@ void il_chswitch_done(struct il_priv *il, bool is_success);
 /*****************************************************
 * TX
 ******************************************************/
-extern void il_txq_update_write_ptr(struct il_priv *il, struct il_tx_queue *txq);
-extern int il_tx_queue_init(struct il_priv *il, u32 txq_id);
-extern void il_tx_queue_reset(struct il_priv *il, u32 txq_id);
-extern void il_tx_queue_unmap(struct il_priv *il, int txq_id);
-extern void il_tx_queue_free(struct il_priv *il, int txq_id);
-extern void il_setup_watchdog(struct il_priv *il);
+void il_txq_update_write_ptr(struct il_priv *il, struct il_tx_queue *txq);
+int il_tx_queue_init(struct il_priv *il, u32 txq_id);
+void il_tx_queue_reset(struct il_priv *il, u32 txq_id);
+void il_tx_queue_unmap(struct il_priv *il, int txq_id);
+void il_tx_queue_free(struct il_priv *il, int txq_id);
+void il_setup_watchdog(struct il_priv *il);
 /*****************************************************
  * TX power
  ****************************************************/
@@ -1931,10 +1931,10 @@ il_is_ready_rf(struct il_priv *il)
 	return il_is_ready(il);
 }
 
-extern void il_send_bt_config(struct il_priv *il);
-extern int il_send_stats_request(struct il_priv *il, u8 flags, bool clear);
-extern void il_apm_stop(struct il_priv *il);
-extern void _il_apm_stop(struct il_priv *il);
+void il_send_bt_config(struct il_priv *il);
+int il_send_stats_request(struct il_priv *il, u8 flags, bool clear);
+void il_apm_stop(struct il_priv *il);
+void _il_apm_stop(struct il_priv *il);
 
 int il_apm_init(struct il_priv *il);
 
@@ -1968,15 +1968,15 @@ void il_tx_cmd_protection(struct il_priv *il, struct ieee80211_tx_info *info,
 
 irqreturn_t il_isr(int irq, void *data);
 
-extern void il_set_bit(struct il_priv *p, u32 r, u32 m);
-extern void il_clear_bit(struct il_priv *p, u32 r, u32 m);
-extern bool _il_grab_nic_access(struct il_priv *il);
-extern int _il_poll_bit(struct il_priv *il, u32 addr, u32 bits, u32 mask, int timeout);
-extern int il_poll_bit(struct il_priv *il, u32 addr, u32 mask, int timeout);
-extern u32 il_rd_prph(struct il_priv *il, u32 reg);
-extern void il_wr_prph(struct il_priv *il, u32 addr, u32 val);
-extern u32 il_read_targ_mem(struct il_priv *il, u32 addr);
-extern void il_write_targ_mem(struct il_priv *il, u32 addr, u32 val);
+void il_set_bit(struct il_priv *p, u32 r, u32 m);
+void il_clear_bit(struct il_priv *p, u32 r, u32 m);
+bool _il_grab_nic_access(struct il_priv *il);
+int _il_poll_bit(struct il_priv *il, u32 addr, u32 bits, u32 mask, int timeout);
+int il_poll_bit(struct il_priv *il, u32 addr, u32 mask, int timeout);
+u32 il_rd_prph(struct il_priv *il, u32 reg);
+void il_wr_prph(struct il_priv *il, u32 addr, u32 val);
+u32 il_read_targ_mem(struct il_priv *il, u32 addr);
+void il_write_targ_mem(struct il_priv *il, u32 addr, u32 val);
 
 static inline void
 _il_write8(struct il_priv *il, u32 ofs, u8 val)
@@ -2868,13 +2868,13 @@ il4965_first_antenna(u8 mask)
  * The specific throughput table used is based on the type of network
  * the associated with, including A, B, G, and G w/ TGG protection
  */
-extern void il3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id);
+void il3945_rate_scale_init(struct ieee80211_hw *hw, s32 sta_id);
 
 /* Initialize station's rate scaling information after adding station */
-extern void il4965_rs_rate_init(struct il_priv *il, struct ieee80211_sta *sta,
-				u8 sta_id);
-extern void il3945_rs_rate_init(struct il_priv *il, struct ieee80211_sta *sta,
-				u8 sta_id);
+void il4965_rs_rate_init(struct il_priv *il, struct ieee80211_sta *sta,
+			 u8 sta_id);
+void il3945_rs_rate_init(struct il_priv *il, struct ieee80211_sta *sta,
+			 u8 sta_id);
 
 /**
  * il_rate_control_register - Register the rate control algorithm callbacks
@@ -2886,8 +2886,8 @@ extern void il3945_rs_rate_init(struct il_priv *il, struct ieee80211_sta *sta,
  * ieee80211_register_hw
  *
  */
-extern int il4965_rate_control_register(void);
-extern int il3945_rate_control_register(void);
+int il4965_rate_control_register(void);
+int il3945_rate_control_register(void);
 
 /**
  * il_rate_control_unregister - Unregister the rate control callbacks
@@ -2895,11 +2895,11 @@ extern int il3945_rate_control_register(void);
  * This should be called after calling ieee80211_unregister_hw, but before
  * the driver is unloaded.
  */
-extern void il4965_rate_control_unregister(void);
-extern void il3945_rate_control_unregister(void);
+void il4965_rate_control_unregister(void);
+void il3945_rate_control_unregister(void);
 
-extern int il_power_update_mode(struct il_priv *il, bool force);
-extern void il_power_initialize(struct il_priv *il);
+int il_power_update_mode(struct il_priv *il, bool force);
+void il_power_initialize(struct il_priv *il);
 
 extern u32 il_debug_level;
 
-- 
cgit 


From b3818394ccdf68d834ca1060c1d5a1fc44e2daee Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: iwlwifi: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/wireless/iwlwifi/dvm/agn.h | 2 +-
 drivers/net/wireless/iwlwifi/dvm/dev.h | 2 +-
 drivers/net/wireless/iwlwifi/dvm/rs.h  | 8 ++++----
 drivers/net/wireless/iwlwifi/mvm/rs.h  | 9 ++++-----
 4 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/dvm/agn.h b/drivers/net/wireless/iwlwifi/dvm/agn.h
index f2a86ffc3b4c..23d5f0275ce9 100644
--- a/drivers/net/wireless/iwlwifi/dvm/agn.h
+++ b/drivers/net/wireless/iwlwifi/dvm/agn.h
@@ -397,7 +397,7 @@ static inline __le32 iwl_hw_set_rate_n_flags(u8 rate, u32 flags)
 	return cpu_to_le32(flags|(u32)rate);
 }
 
-extern int iwl_alive_start(struct iwl_priv *priv);
+int iwl_alive_start(struct iwl_priv *priv);
 
 #ifdef CONFIG_IWLWIFI_DEBUG
 void iwl_print_rx_config_cmd(struct iwl_priv *priv,
diff --git a/drivers/net/wireless/iwlwifi/dvm/dev.h b/drivers/net/wireless/iwlwifi/dvm/dev.h
index a79fdd137f95..7434d9edf3b7 100644
--- a/drivers/net/wireless/iwlwifi/dvm/dev.h
+++ b/drivers/net/wireless/iwlwifi/dvm/dev.h
@@ -270,7 +270,7 @@ struct iwl_sensitivity_ranges {
  * iwlXXXX_     <-- Hardware specific (implemented in iwl-XXXX.c for XXXX)
  *
  ****************************************************************************/
-extern void iwl_update_chain_flags(struct iwl_priv *priv);
+void iwl_update_chain_flags(struct iwl_priv *priv);
 extern const u8 iwl_bcast_addr[ETH_ALEN];
 
 #define IWL_OPERATION_MODE_AUTO     0
diff --git a/drivers/net/wireless/iwlwifi/dvm/rs.h b/drivers/net/wireless/iwlwifi/dvm/rs.h
index 5d83cab22d62..26fc550cd68c 100644
--- a/drivers/net/wireless/iwlwifi/dvm/rs.h
+++ b/drivers/net/wireless/iwlwifi/dvm/rs.h
@@ -407,8 +407,8 @@ static inline u8 first_antenna(u8 mask)
 
 
 /* Initialize station's rate scaling information after adding station */
-extern void iwl_rs_rate_init(struct iwl_priv *priv,
-			     struct ieee80211_sta *sta, u8 sta_id);
+void iwl_rs_rate_init(struct iwl_priv *priv, struct ieee80211_sta *sta,
+		      u8 sta_id);
 
 /**
  * iwl_rate_control_register - Register the rate control algorithm callbacks
@@ -420,7 +420,7 @@ extern void iwl_rs_rate_init(struct iwl_priv *priv,
  * ieee80211_register_hw
  *
  */
-extern int iwlagn_rate_control_register(void);
+int iwlagn_rate_control_register(void);
 
 /**
  * iwl_rate_control_unregister - Unregister the rate control callbacks
@@ -428,6 +428,6 @@ extern int iwlagn_rate_control_register(void);
  * This should be called after calling ieee80211_unregister_hw, but before
  * the driver is unloaded.
  */
-extern void iwlagn_rate_control_unregister(void);
+void iwlagn_rate_control_unregister(void);
 
 #endif /* __iwl_agn__rs__ */
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.h b/drivers/net/wireless/iwlwifi/mvm/rs.h
index 335cf1682902..465d40ee176f 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.h
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.h
@@ -314,9 +314,8 @@ static inline u8 num_of_ant(u8 mask)
 }
 
 /* Initialize station's rate scaling information after adding station */
-extern void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm,
-				 struct ieee80211_sta *sta,
-				 enum ieee80211_band band);
+void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
+			  enum ieee80211_band band);
 
 /**
  * iwl_rate_control_register - Register the rate control algorithm callbacks
@@ -328,7 +327,7 @@ extern void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm,
  * ieee80211_register_hw
  *
  */
-extern int iwl_mvm_rate_control_register(void);
+int iwl_mvm_rate_control_register(void);
 
 /**
  * iwl_rate_control_unregister - Unregister the rate control callbacks
@@ -336,7 +335,7 @@ extern int iwl_mvm_rate_control_register(void);
  * This should be called after calling ieee80211_unregister_hw, but before
  * the driver is unloaded.
  */
-extern void iwl_mvm_rate_control_unregister(void);
+void iwl_mvm_rate_control_unregister(void);
 
 struct iwl_mvm_sta;
 
-- 
cgit 


From b3a7cd194857b3dc099e8f8bb0ed97bb4a1b5fde Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: mwifiex: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/wireless/mwifiex/wmm.h | 24 ++++++++++--------------
 1 file changed, 10 insertions(+), 14 deletions(-)

diff --git a/drivers/net/wireless/mwifiex/wmm.h b/drivers/net/wireless/mwifiex/wmm.h
index 644d6e0c51cc..0f129d498fb1 100644
--- a/drivers/net/wireless/mwifiex/wmm.h
+++ b/drivers/net/wireless/mwifiex/wmm.h
@@ -83,11 +83,10 @@ mwifiex_wmm_is_ra_list_empty(struct list_head *ra_list_hhead)
 }
 
 void mwifiex_wmm_add_buf_txqueue(struct mwifiex_private *priv,
-					struct sk_buff *skb);
+				 struct sk_buff *skb);
 void mwifiex_ralist_add(struct mwifiex_private *priv, u8 *ra);
 void mwifiex_rotate_priolists(struct mwifiex_private *priv,
-			      struct mwifiex_ra_list_tbl *ra,
-			      int tid);
+			      struct mwifiex_ra_list_tbl *ra, int tid);
 
 int mwifiex_wmm_lists_empty(struct mwifiex_adapter *adapter);
 void mwifiex_wmm_process_tx(struct mwifiex_adapter *adapter);
@@ -95,21 +94,18 @@ int mwifiex_is_ralist_valid(struct mwifiex_private *priv,
 			    struct mwifiex_ra_list_tbl *ra_list, int tid);
 
 u8 mwifiex_wmm_compute_drv_pkt_delay(struct mwifiex_private *priv,
-					     const struct sk_buff *skb);
+				     const struct sk_buff *skb);
 void mwifiex_wmm_init(struct mwifiex_adapter *adapter);
 
-extern u32 mwifiex_wmm_process_association_req(struct mwifiex_private *priv,
-						 u8 **assoc_buf,
-						 struct ieee_types_wmm_parameter
-						 *wmmie,
-						 struct ieee80211_ht_cap
-						 *htcap);
+u32 mwifiex_wmm_process_association_req(struct mwifiex_private *priv,
+					u8 **assoc_buf,
+					struct ieee_types_wmm_parameter *wmmie,
+					struct ieee80211_ht_cap *htcap);
 
 void mwifiex_wmm_setup_queue_priorities(struct mwifiex_private *priv,
-					struct ieee_types_wmm_parameter
-					*wmm_ie);
+					struct ieee_types_wmm_parameter *wmm_ie);
 void mwifiex_wmm_setup_ac_downgrade(struct mwifiex_private *priv);
-extern int mwifiex_ret_wmm_get_status(struct mwifiex_private *priv,
-				      const struct host_cmd_ds_command *resp);
+int mwifiex_ret_wmm_get_status(struct mwifiex_private *priv,
+			       const struct host_cmd_ds_command *resp);
 
 #endif /* !_MWIFIEX_WMM_H_ */
-- 
cgit 


From 53406cd734ec5293069acd9135440ff36a4bbdbc Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: orinoco: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/wireless/orinoco/orinoco.h | 31 ++++++++++++++-----------------
 1 file changed, 14 insertions(+), 17 deletions(-)

diff --git a/drivers/net/wireless/orinoco/orinoco.h b/drivers/net/wireless/orinoco/orinoco.h
index 3bb936b9558c..eebd2be21ee9 100644
--- a/drivers/net/wireless/orinoco/orinoco.h
+++ b/drivers/net/wireless/orinoco/orinoco.h
@@ -182,23 +182,20 @@ extern int orinoco_debug;
 /* Exported prototypes                                              */
 /********************************************************************/
 
-extern struct orinoco_private *alloc_orinocodev(
-	int sizeof_card, struct device *device,
-	int (*hard_reset)(struct orinoco_private *),
-	int (*stop_fw)(struct orinoco_private *, int));
-extern void free_orinocodev(struct orinoco_private *priv);
-extern int orinoco_init(struct orinoco_private *priv);
-extern int orinoco_if_add(struct orinoco_private *priv,
-			  unsigned long base_addr,
-			  unsigned int irq,
-			  const struct net_device_ops *ops);
-extern void orinoco_if_del(struct orinoco_private *priv);
-extern int orinoco_up(struct orinoco_private *priv);
-extern void orinoco_down(struct orinoco_private *priv);
-extern irqreturn_t orinoco_interrupt(int irq, void *dev_id);
-
-extern void __orinoco_ev_info(struct net_device *dev, struct hermes *hw);
-extern void __orinoco_ev_rx(struct net_device *dev, struct hermes *hw);
+struct orinoco_private *alloc_orinocodev(int sizeof_card, struct device *device,
+					 int (*hard_reset)(struct orinoco_private *),
+					 int (*stop_fw)(struct orinoco_private *, int));
+void free_orinocodev(struct orinoco_private *priv);
+int orinoco_init(struct orinoco_private *priv);
+int orinoco_if_add(struct orinoco_private *priv, unsigned long base_addr,
+		   unsigned int irq, const struct net_device_ops *ops);
+void orinoco_if_del(struct orinoco_private *priv);
+int orinoco_up(struct orinoco_private *priv);
+void orinoco_down(struct orinoco_private *priv);
+irqreturn_t orinoco_interrupt(int irq, void *dev_id);
+
+void __orinoco_ev_info(struct net_device *dev, struct hermes *hw);
+void __orinoco_ev_rx(struct net_device *dev, struct hermes *hw);
 
 int orinoco_process_xmit_skb(struct sk_buff *skb,
 			     struct net_device *dev,
-- 
cgit 


From a958df5dc3065ce517726dc54087639e13ffee8f Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 23 Sep 2013 11:37:59 -0700
Subject: rtlwifi: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 drivers/net/wireless/rtlwifi/cam.h           | 10 ++---
 drivers/net/wireless/rtlwifi/efuse.h         | 29 +++++++------
 drivers/net/wireless/rtlwifi/rtl8188ee/phy.h | 49 ++++++++++------------
 drivers/net/wireless/rtlwifi/rtl8192ce/phy.h | 54 ++++++++++--------------
 drivers/net/wireless/rtlwifi/rtl8192ce/rf.h  | 13 +++---
 drivers/net/wireless/rtlwifi/rtl8192cu/rf.h  | 13 +++---
 drivers/net/wireless/rtlwifi/rtl8192de/hw.h  |  7 ++--
 drivers/net/wireless/rtlwifi/rtl8192de/phy.h | 44 +++++++++-----------
 drivers/net/wireless/rtlwifi/rtl8192de/rf.h  | 18 ++++----
 drivers/net/wireless/rtlwifi/rtl8723ae/phy.h | 61 +++++++++++++---------------
 drivers/net/wireless/rtlwifi/rtl8723ae/rf.h  | 13 +++---
 11 files changed, 141 insertions(+), 170 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/cam.h b/drivers/net/wireless/rtlwifi/cam.h
index 35e00086a520..0105e6c1901e 100644
--- a/drivers/net/wireless/rtlwifi/cam.h
+++ b/drivers/net/wireless/rtlwifi/cam.h
@@ -41,12 +41,12 @@
 #define	CAM_CONFIG_USEDK				1
 #define	CAM_CONFIG_NO_USEDK				0
 
-extern void rtl_cam_reset_all_entry(struct ieee80211_hw *hw);
-extern u8 rtl_cam_add_one_entry(struct ieee80211_hw *hw, u8 *mac_addr,
-			u32 ul_key_id, u32 ul_entry_idx, u32 ul_enc_alg,
-			u32 ul_default_key, u8 *key_content);
+void rtl_cam_reset_all_entry(struct ieee80211_hw *hw);
+u8 rtl_cam_add_one_entry(struct ieee80211_hw *hw, u8 *mac_addr,
+			 u32 ul_key_id, u32 ul_entry_idx, u32 ul_enc_alg,
+			 u32 ul_default_key, u8 *key_content);
 int rtl_cam_delete_one_entry(struct ieee80211_hw *hw, u8 *mac_addr,
-			u32 ul_key_id);
+			     u32 ul_key_id);
 void rtl_cam_mark_invalid(struct ieee80211_hw *hw, u8 uc_index);
 void rtl_cam_empty_entry(struct ieee80211_hw *hw, u8 uc_index);
 void rtl_cam_reset_sec_info(struct ieee80211_hw *hw);
diff --git a/drivers/net/wireless/rtlwifi/efuse.h b/drivers/net/wireless/rtlwifi/efuse.h
index 395a326acfb4..1663b3afd41e 100644
--- a/drivers/net/wireless/rtlwifi/efuse.h
+++ b/drivers/net/wireless/rtlwifi/efuse.h
@@ -104,20 +104,19 @@ struct efuse_priv {
 	u8 tx_power_g[14];
 };
 
-extern void read_efuse_byte(struct ieee80211_hw *hw, u16 _offset, u8 *pbuf);
-extern void efuse_initialize(struct ieee80211_hw *hw);
-extern u8 efuse_read_1byte(struct ieee80211_hw *hw, u16 address);
-extern void efuse_write_1byte(struct ieee80211_hw *hw, u16 address, u8 value);
-extern void read_efuse(struct ieee80211_hw *hw, u16 _offset,
-		       u16 _size_byte, u8 *pbuf);
-extern void efuse_shadow_read(struct ieee80211_hw *hw, u8 type,
-			      u16 offset, u32 *value);
-extern void efuse_shadow_write(struct ieee80211_hw *hw, u8 type,
-			       u16 offset, u32 value);
-extern bool efuse_shadow_update(struct ieee80211_hw *hw);
-extern bool efuse_shadow_update_chk(struct ieee80211_hw *hw);
-extern void rtl_efuse_shadow_map_update(struct ieee80211_hw *hw);
-extern void efuse_force_write_vendor_Id(struct ieee80211_hw *hw);
-extern void efuse_re_pg_section(struct ieee80211_hw *hw, u8 section_idx);
+void read_efuse_byte(struct ieee80211_hw *hw, u16 _offset, u8 *pbuf);
+void efuse_initialize(struct ieee80211_hw *hw);
+u8 efuse_read_1byte(struct ieee80211_hw *hw, u16 address);
+void efuse_write_1byte(struct ieee80211_hw *hw, u16 address, u8 value);
+void read_efuse(struct ieee80211_hw *hw, u16 _offset, u16 _size_byte, u8 *pbuf);
+void efuse_shadow_read(struct ieee80211_hw *hw, u8 type, u16 offset,
+		       u32 *value);
+void efuse_shadow_write(struct ieee80211_hw *hw, u8 type, u16 offset,
+			u32 value);
+bool efuse_shadow_update(struct ieee80211_hw *hw);
+bool efuse_shadow_update_chk(struct ieee80211_hw *hw);
+void rtl_efuse_shadow_map_update(struct ieee80211_hw *hw);
+void efuse_force_write_vendor_Id(struct ieee80211_hw *hw);
+void efuse_re_pg_section(struct ieee80211_hw *hw, u8 section_idx);
 
 #endif
diff --git a/drivers/net/wireless/rtlwifi/rtl8188ee/phy.h b/drivers/net/wireless/rtlwifi/rtl8188ee/phy.h
index f1acd6d27e44..71ddf4f3f6cc 100644
--- a/drivers/net/wireless/rtlwifi/rtl8188ee/phy.h
+++ b/drivers/net/wireless/rtlwifi/rtl8188ee/phy.h
@@ -200,37 +200,32 @@ enum _ANT_DIV_TYPE {
 	CGCS_RX_SW_ANTDIV		= 0x05,
 };
 
-extern u32 rtl88e_phy_query_bb_reg(struct ieee80211_hw *hw,
-				   u32 regaddr, u32 bitmask);
-extern void rtl88e_phy_set_bb_reg(struct ieee80211_hw *hw,
-				  u32 regaddr, u32 bitmask, u32 data);
-extern u32 rtl88e_phy_query_rf_reg(struct ieee80211_hw *hw,
-				   enum radio_path rfpath, u32 regaddr,
-				   u32 bitmask);
-extern void rtl88e_phy_set_rf_reg(struct ieee80211_hw *hw,
-				  enum radio_path rfpath, u32 regaddr,
-				  u32 bitmask, u32 data);
-extern bool rtl88e_phy_mac_config(struct ieee80211_hw *hw);
-extern bool rtl88e_phy_bb_config(struct ieee80211_hw *hw);
-extern bool rtl88e_phy_rf_config(struct ieee80211_hw *hw);
-extern void rtl88e_phy_get_hw_reg_originalvalue(struct ieee80211_hw *hw);
-extern void rtl88e_phy_get_txpower_level(struct ieee80211_hw *hw,
-					 long *powerlevel);
-extern void rtl88e_phy_set_txpower_level(struct ieee80211_hw *hw, u8 channel);
-extern void rtl88e_phy_scan_operation_backup(struct ieee80211_hw *hw,
-					     u8 operation);
-extern void rtl88e_phy_set_bw_mode_callback(struct ieee80211_hw *hw);
-extern void rtl88e_phy_set_bw_mode(struct ieee80211_hw *hw,
-				   enum nl80211_channel_type ch_type);
-extern void rtl88e_phy_sw_chnl_callback(struct ieee80211_hw *hw);
-extern u8 rtl88e_phy_sw_chnl(struct ieee80211_hw *hw);
-extern void rtl88e_phy_iq_calibrate(struct ieee80211_hw *hw, bool b_recovery);
+u32 rtl88e_phy_query_bb_reg(struct ieee80211_hw *hw, u32 regaddr, u32 bitmask);
+void rtl88e_phy_set_bb_reg(struct ieee80211_hw *hw, u32 regaddr, u32 bitmask,
+			   u32 data);
+u32 rtl88e_phy_query_rf_reg(struct ieee80211_hw *hw, enum radio_path rfpath,
+			    u32 regaddr, u32 bitmask);
+void rtl88e_phy_set_rf_reg(struct ieee80211_hw *hw, enum radio_path rfpath,
+			   u32 regaddr, u32 bitmask, u32 data);
+bool rtl88e_phy_mac_config(struct ieee80211_hw *hw);
+bool rtl88e_phy_bb_config(struct ieee80211_hw *hw);
+bool rtl88e_phy_rf_config(struct ieee80211_hw *hw);
+void rtl88e_phy_get_hw_reg_originalvalue(struct ieee80211_hw *hw);
+void rtl88e_phy_get_txpower_level(struct ieee80211_hw *hw, long *powerlevel);
+void rtl88e_phy_set_txpower_level(struct ieee80211_hw *hw, u8 channel);
+void rtl88e_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation);
+void rtl88e_phy_set_bw_mode_callback(struct ieee80211_hw *hw);
+void rtl88e_phy_set_bw_mode(struct ieee80211_hw *hw,
+			    enum nl80211_channel_type ch_type);
+void rtl88e_phy_sw_chnl_callback(struct ieee80211_hw *hw);
+u8 rtl88e_phy_sw_chnl(struct ieee80211_hw *hw);
+void rtl88e_phy_iq_calibrate(struct ieee80211_hw *hw, bool b_recovery);
 void rtl88e_phy_lc_calibrate(struct ieee80211_hw *hw);
 void rtl88e_phy_set_rfpath_switch(struct ieee80211_hw *hw, bool bmain);
 bool rtl88e_phy_config_rf_with_headerfile(struct ieee80211_hw *hw,
 					  enum radio_path rfpath);
 bool rtl88e_phy_set_io_cmd(struct ieee80211_hw *hw, enum io_type iotype);
-extern bool rtl88e_phy_set_rf_power_state(struct ieee80211_hw *hw,
-					  enum rf_pwrstate rfpwr_state);
+bool rtl88e_phy_set_rf_power_state(struct ieee80211_hw *hw,
+				   enum rf_pwrstate rfpwr_state);
 
 #endif
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/phy.h b/drivers/net/wireless/rtlwifi/rtl8192ce/phy.h
index d5e3b704f930..f8973e58c173 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/phy.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/phy.h
@@ -188,65 +188,55 @@ struct tx_power_struct {
 };
 
 bool rtl92c_phy_bb_config(struct ieee80211_hw *hw);
-u32 rtl92c_phy_query_bb_reg(struct ieee80211_hw *hw,
-				   u32 regaddr, u32 bitmask);
-void rtl92c_phy_set_bb_reg(struct ieee80211_hw *hw,
-				  u32 regaddr, u32 bitmask, u32 data);
-u32 rtl92c_phy_query_rf_reg(struct ieee80211_hw *hw,
-				   enum radio_path rfpath, u32 regaddr,
-				   u32 bitmask);
-extern void rtl92ce_phy_set_rf_reg(struct ieee80211_hw *hw,
-				   enum radio_path rfpath, u32 regaddr,
-				   u32 bitmask, u32 data);
+u32 rtl92c_phy_query_bb_reg(struct ieee80211_hw *hw, u32 regaddr, u32 bitmask);
+void rtl92c_phy_set_bb_reg(struct ieee80211_hw *hw, u32 regaddr, u32 bitmask,
+			   u32 data);
+u32 rtl92c_phy_query_rf_reg(struct ieee80211_hw *hw, enum radio_path rfpath,
+			    u32 regaddr, u32 bitmask);
+void rtl92ce_phy_set_rf_reg(struct ieee80211_hw *hw, enum radio_path rfpath,
+			    u32 regaddr, u32 bitmask, u32 data);
 bool rtl92c_phy_mac_config(struct ieee80211_hw *hw);
 bool rtl92ce_phy_bb_config(struct ieee80211_hw *hw);
 bool rtl92c_phy_rf_config(struct ieee80211_hw *hw);
 bool rtl92c_phy_config_rf_with_feaderfile(struct ieee80211_hw *hw,
-						 enum radio_path rfpath);
+					  enum radio_path rfpath);
 void rtl92c_phy_get_hw_reg_originalvalue(struct ieee80211_hw *hw);
-void rtl92c_phy_get_txpower_level(struct ieee80211_hw *hw,
-					 long *powerlevel);
+void rtl92c_phy_get_txpower_level(struct ieee80211_hw *hw, long *powerlevel);
 void rtl92c_phy_set_txpower_level(struct ieee80211_hw *hw, u8 channel);
-bool rtl92c_phy_update_txpower_dbm(struct ieee80211_hw *hw,
-					  long power_indbm);
-void rtl92c_phy_scan_operation_backup(struct ieee80211_hw *hw,
-					     u8 operation);
+bool rtl92c_phy_update_txpower_dbm(struct ieee80211_hw *hw, long power_indbm);
+void rtl92c_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation);
 void rtl92c_phy_set_bw_mode(struct ieee80211_hw *hw,
-				   enum nl80211_channel_type ch_type);
+			    enum nl80211_channel_type ch_type);
 void rtl92c_phy_sw_chnl_callback(struct ieee80211_hw *hw);
 u8 rtl92c_phy_sw_chnl(struct ieee80211_hw *hw);
 void rtl92c_phy_iq_calibrate(struct ieee80211_hw *hw, bool b_recovery);
-void rtl92c_phy_set_beacon_hw_reg(struct ieee80211_hw *hw,
-					 u16 beaconinterval);
+void rtl92c_phy_set_beacon_hw_reg(struct ieee80211_hw *hw, u16 beaconinterval);
 void rtl92c_phy_ap_calibrate(struct ieee80211_hw *hw, char delta);
 void rtl92c_phy_lc_calibrate(struct ieee80211_hw *hw);
 void _rtl92ce_phy_lc_calibrate(struct ieee80211_hw *hw, bool is2t);
 void rtl92c_phy_set_rfpath_switch(struct ieee80211_hw *hw, bool bmain);
 bool rtl92c_phy_config_rf_with_headerfile(struct ieee80211_hw *hw,
 					  enum radio_path rfpath);
-bool rtl8192_phy_check_is_legal_rfpath(struct ieee80211_hw *hw,
-					      u32 rfpath);
+bool rtl8192_phy_check_is_legal_rfpath(struct ieee80211_hw *hw, u32 rfpath);
 bool rtl92c_phy_set_io_cmd(struct ieee80211_hw *hw, enum io_type iotype);
 bool rtl92ce_phy_set_rf_power_state(struct ieee80211_hw *hw,
-					  enum rf_pwrstate rfpwr_state);
+				    enum rf_pwrstate rfpwr_state);
 void rtl92ce_phy_set_rf_on(struct ieee80211_hw *hw);
 bool rtl92c_phy_set_io_cmd(struct ieee80211_hw *hw, enum io_type iotype);
 void rtl92c_phy_set_io(struct ieee80211_hw *hw);
 void rtl92c_bb_block_on(struct ieee80211_hw *hw);
-u32 _rtl92c_phy_rf_serial_read(struct ieee80211_hw *hw,
-				      enum radio_path rfpath, u32 offset);
+u32 _rtl92c_phy_rf_serial_read(struct ieee80211_hw *hw, enum radio_path rfpath,
+			       u32 offset);
 u32 _rtl92c_phy_fw_rf_serial_read(struct ieee80211_hw *hw,
-					 enum radio_path rfpath, u32 offset);
+				  enum radio_path rfpath, u32 offset);
 u32 _rtl92c_phy_calculate_bit_shift(u32 bitmask);
 void _rtl92c_phy_rf_serial_write(struct ieee80211_hw *hw,
-					enum radio_path rfpath, u32 offset,
-					u32 data);
+				 enum radio_path rfpath, u32 offset, u32 data);
 void _rtl92c_phy_fw_rf_serial_write(struct ieee80211_hw *hw,
-					   enum radio_path rfpath, u32 offset,
-					   u32 data);
+				    enum radio_path rfpath, u32 offset,
+				    u32 data);
 void _rtl92c_store_pwrIndex_diffrate_offset(struct ieee80211_hw *hw,
-						   u32 regaddr, u32 bitmask,
-						   u32 data);
+					    u32 regaddr, u32 bitmask, u32 data);
 bool _rtl92ce_phy_config_mac_with_headerfile(struct ieee80211_hw *hw);
 void _rtl92c_phy_init_bb_rf_register_definition(struct ieee80211_hw *hw);
 bool _rtl92c_phy_bb8192c_config_parafile(struct ieee80211_hw *hw);
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/rf.h b/drivers/net/wireless/rtlwifi/rtl8192ce/rf.h
index 6c8d56efceae..d8fe68b389d2 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/rf.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/rf.h
@@ -34,11 +34,10 @@
 #define RF6052_MAX_REG			0x3F
 #define RF6052_MAX_PATH			2
 
-extern void rtl92ce_phy_rf6052_set_bandwidth(struct ieee80211_hw *hw,
-					     u8 bandwidth);
-extern void rtl92ce_phy_rf6052_set_cck_txpower(struct ieee80211_hw *hw,
-					       u8 *ppowerlevel);
-extern void rtl92ce_phy_rf6052_set_ofdm_txpower(struct ieee80211_hw *hw,
-						u8 *ppowerlevel, u8 channel);
-extern bool rtl92ce_phy_rf6052_config(struct ieee80211_hw *hw);
+void rtl92ce_phy_rf6052_set_bandwidth(struct ieee80211_hw *hw, u8 bandwidth);
+void rtl92ce_phy_rf6052_set_cck_txpower(struct ieee80211_hw *hw,
+					u8 *ppowerlevel);
+void rtl92ce_phy_rf6052_set_ofdm_txpower(struct ieee80211_hw *hw,
+					 u8 *ppowerlevel, u8 channel);
+bool rtl92ce_phy_rf6052_config(struct ieee80211_hw *hw);
 #endif
diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/rf.h b/drivers/net/wireless/rtlwifi/rtl8192cu/rf.h
index 090fd33a158d..11b439d6b671 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/rf.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/rf.h
@@ -34,15 +34,14 @@
 #define RF6052_MAX_REG			0x3F
 #define RF6052_MAX_PATH			2
 
-extern void rtl92cu_phy_rf6052_set_bandwidth(struct ieee80211_hw *hw,
-					    u8 bandwidth);
-extern void rtl92c_phy_rf6052_set_cck_txpower(struct ieee80211_hw *hw,
-					      u8 *ppowerlevel);
-extern void rtl92c_phy_rf6052_set_ofdm_txpower(struct ieee80211_hw *hw,
-					       u8 *ppowerlevel, u8 channel);
+void rtl92cu_phy_rf6052_set_bandwidth(struct ieee80211_hw *hw, u8 bandwidth);
+void rtl92c_phy_rf6052_set_cck_txpower(struct ieee80211_hw *hw,
+				       u8 *ppowerlevel);
+void rtl92c_phy_rf6052_set_ofdm_txpower(struct ieee80211_hw *hw,
+					u8 *ppowerlevel, u8 channel);
 bool rtl92cu_phy_rf6052_config(struct ieee80211_hw *hw);
 bool rtl92cu_phy_config_rf_with_headerfile(struct ieee80211_hw *hw,
-					  enum radio_path rfpath);
+					   enum radio_path rfpath);
 void rtl92cu_phy_rf6052_set_cck_txpower(struct ieee80211_hw *hw,
 					u8 *ppowerlevel);
 void rtl92cu_phy_rf6052_set_ofdm_txpower(struct ieee80211_hw *hw,
diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/hw.h b/drivers/net/wireless/rtlwifi/rtl8192de/hw.h
index 7c9f7a2f1e42..1bc7b1a96d4a 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192de/hw.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192de/hw.h
@@ -55,10 +55,9 @@ void rtl92de_set_key(struct ieee80211_hw *hw, u32 key_index,
 		     u8 *p_macaddr, bool is_group, u8 enc_algo,
 		     bool is_wepkey, bool clear_all);
 
-extern void rtl92de_write_dword_dbi(struct ieee80211_hw *hw, u16 offset,
-				    u32 value, u8 direct);
-extern u32 rtl92de_read_dword_dbi(struct ieee80211_hw *hw, u16 offset,
-				  u8 direct);
+void rtl92de_write_dword_dbi(struct ieee80211_hw *hw, u16 offset, u32 value,
+			     u8 direct);
+u32 rtl92de_read_dword_dbi(struct ieee80211_hw *hw, u16 offset, u8 direct);
 void rtl92de_suspend(struct ieee80211_hw *hw);
 void rtl92de_resume(struct ieee80211_hw *hw);
 void rtl92d_linked_set_reg(struct ieee80211_hw *hw);
diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/phy.h b/drivers/net/wireless/rtlwifi/rtl8192de/phy.h
index f074952bf25c..0f993f451cdb 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192de/phy.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192de/phy.h
@@ -127,34 +127,30 @@ static inline void rtl92d_release_cckandrw_pagea_ctl(struct ieee80211_hw *hw,
 			*flag);
 }
 
-extern u32 rtl92d_phy_query_bb_reg(struct ieee80211_hw *hw,
-				   u32 regaddr, u32 bitmask);
-extern void rtl92d_phy_set_bb_reg(struct ieee80211_hw *hw,
-				  u32 regaddr, u32 bitmask, u32 data);
-extern u32 rtl92d_phy_query_rf_reg(struct ieee80211_hw *hw,
-				   enum radio_path rfpath, u32 regaddr,
-				   u32 bitmask);
-extern void rtl92d_phy_set_rf_reg(struct ieee80211_hw *hw,
-				  enum radio_path rfpath, u32 regaddr,
-				  u32 bitmask, u32 data);
-extern bool rtl92d_phy_mac_config(struct ieee80211_hw *hw);
-extern bool rtl92d_phy_bb_config(struct ieee80211_hw *hw);
-extern bool rtl92d_phy_rf_config(struct ieee80211_hw *hw);
-extern bool rtl92c_phy_config_rf_with_feaderfile(struct ieee80211_hw *hw,
-						 enum radio_path rfpath);
-extern void rtl92d_phy_get_hw_reg_originalvalue(struct ieee80211_hw *hw);
-extern void rtl92d_phy_set_txpower_level(struct ieee80211_hw *hw, u8 channel);
-extern void rtl92d_phy_scan_operation_backup(struct ieee80211_hw *hw,
-					     u8 operation);
-extern void rtl92d_phy_set_bw_mode(struct ieee80211_hw *hw,
-				   enum nl80211_channel_type ch_type);
-extern u8 rtl92d_phy_sw_chnl(struct ieee80211_hw *hw);
+u32 rtl92d_phy_query_bb_reg(struct ieee80211_hw *hw, u32 regaddr, u32 bitmask);
+void rtl92d_phy_set_bb_reg(struct ieee80211_hw *hw, u32 regaddr, u32 bitmask,
+			   u32 data);
+u32 rtl92d_phy_query_rf_reg(struct ieee80211_hw *hw, enum radio_path rfpath,
+			    u32 regaddr, u32 bitmask);
+void rtl92d_phy_set_rf_reg(struct ieee80211_hw *hw, enum radio_path rfpath,
+			   u32 regaddr, u32 bitmask, u32 data);
+bool rtl92d_phy_mac_config(struct ieee80211_hw *hw);
+bool rtl92d_phy_bb_config(struct ieee80211_hw *hw);
+bool rtl92d_phy_rf_config(struct ieee80211_hw *hw);
+bool rtl92c_phy_config_rf_with_feaderfile(struct ieee80211_hw *hw,
+					  enum radio_path rfpath);
+void rtl92d_phy_get_hw_reg_originalvalue(struct ieee80211_hw *hw);
+void rtl92d_phy_set_txpower_level(struct ieee80211_hw *hw, u8 channel);
+void rtl92d_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation);
+void rtl92d_phy_set_bw_mode(struct ieee80211_hw *hw,
+			    enum nl80211_channel_type ch_type);
+u8 rtl92d_phy_sw_chnl(struct ieee80211_hw *hw);
 bool rtl92d_phy_config_rf_with_headerfile(struct ieee80211_hw *hw,
 					  enum rf_content content,
 					  enum radio_path rfpath);
 bool rtl92d_phy_set_io_cmd(struct ieee80211_hw *hw, enum io_type iotype);
-extern bool rtl92d_phy_set_rf_power_state(struct ieee80211_hw *hw,
-					  enum rf_pwrstate rfpwr_state);
+bool rtl92d_phy_set_rf_power_state(struct ieee80211_hw *hw,
+				   enum rf_pwrstate rfpwr_state);
 
 void rtl92d_phy_config_macphymode(struct ieee80211_hw *hw);
 void rtl92d_phy_config_macphymode_info(struct ieee80211_hw *hw);
diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/rf.h b/drivers/net/wireless/rtlwifi/rtl8192de/rf.h
index 0fe1a48593e8..7303d12c266f 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192de/rf.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192de/rf.h
@@ -30,15 +30,13 @@
 #ifndef __RTL92D_RF_H__
 #define __RTL92D_RF_H__
 
-extern void rtl92d_phy_rf6052_set_bandwidth(struct ieee80211_hw *hw,
-					    u8 bandwidth);
-extern void rtl92d_phy_rf6052_set_cck_txpower(struct ieee80211_hw *hw,
-					      u8 *ppowerlevel);
-extern void rtl92d_phy_rf6052_set_ofdm_txpower(struct ieee80211_hw *hw,
-					       u8 *ppowerlevel, u8 channel);
-extern bool rtl92d_phy_rf6052_config(struct ieee80211_hw *hw);
-extern bool rtl92d_phy_enable_anotherphy(struct ieee80211_hw *hw, bool bmac0);
-extern void rtl92d_phy_powerdown_anotherphy(struct ieee80211_hw *hw,
-					    bool bmac0);
+void rtl92d_phy_rf6052_set_bandwidth(struct ieee80211_hw *hw, u8 bandwidth);
+void rtl92d_phy_rf6052_set_cck_txpower(struct ieee80211_hw *hw,
+				       u8 *ppowerlevel);
+void rtl92d_phy_rf6052_set_ofdm_txpower(struct ieee80211_hw *hw,
+					u8 *ppowerlevel, u8 channel);
+bool rtl92d_phy_rf6052_config(struct ieee80211_hw *hw);
+bool rtl92d_phy_enable_anotherphy(struct ieee80211_hw *hw, bool bmac0);
+void rtl92d_phy_powerdown_anotherphy(struct ieee80211_hw *hw, bool bmac0);
 
 #endif
diff --git a/drivers/net/wireless/rtlwifi/rtl8723ae/phy.h b/drivers/net/wireless/rtlwifi/rtl8723ae/phy.h
index e7a59eba351a..bbb950dac5ba 100644
--- a/drivers/net/wireless/rtlwifi/rtl8723ae/phy.h
+++ b/drivers/net/wireless/rtlwifi/rtl8723ae/phy.h
@@ -183,42 +183,39 @@ struct tx_power_struct {
 	u32 mcs_original_offset[4][16];
 };
 
-extern u32 rtl8723ae_phy_query_bb_reg(struct ieee80211_hw *hw,
-				      u32 regaddr, u32 bitmask);
-extern void rtl8723ae_phy_set_bb_reg(struct ieee80211_hw *hw,
-				     u32 regaddr, u32 bitmask, u32 data);
-extern u32 rtl8723ae_phy_query_rf_reg(struct ieee80211_hw *hw,
-				      enum radio_path rfpath, u32 regaddr,
-				      u32 bitmask);
-extern void rtl8723ae_phy_set_rf_reg(struct ieee80211_hw *hw,
-				     enum radio_path rfpath, u32 regaddr,
-				     u32 bitmask, u32 data);
-extern bool rtl8723ae_phy_mac_config(struct ieee80211_hw *hw);
-extern bool rtl8723ae_phy_bb_config(struct ieee80211_hw *hw);
-extern bool rtl8723ae_phy_rf_config(struct ieee80211_hw *hw);
-extern bool rtl92c_phy_config_rf_with_feaderfile(struct ieee80211_hw *hw,
-						 enum radio_path rfpath);
-extern void rtl8723ae_phy_get_hw_reg_originalvalue(struct ieee80211_hw *hw);
-extern void rtl8723ae_phy_get_txpower_level(struct ieee80211_hw *hw,
-					    long *powerlevel);
-extern void rtl8723ae_phy_set_txpower_level(struct ieee80211_hw *hw,
-					    u8 channel);
-extern bool rtl8723ae_phy_update_txpower_dbm(struct ieee80211_hw *hw,
-					     long power_indbm);
-extern void rtl8723ae_phy_scan_operation_backup(struct ieee80211_hw *hw,
-						u8 operation);
-extern void rtl8723ae_phy_set_bw_mode_callback(struct ieee80211_hw *hw);
-extern void rtl8723ae_phy_set_bw_mode(struct ieee80211_hw *hw,
-				      enum nl80211_channel_type ch_type);
-extern void rtl8723ae_phy_sw_chnl_callback(struct ieee80211_hw *hw);
-extern u8 rtl8723ae_phy_sw_chnl(struct ieee80211_hw *hw);
-extern void rtl8723ae_phy_iq_calibrate(struct ieee80211_hw *hw, bool recovery);
+u32 rtl8723ae_phy_query_bb_reg(struct ieee80211_hw *hw, u32 regaddr,
+			       u32 bitmask);
+void rtl8723ae_phy_set_bb_reg(struct ieee80211_hw *hw, u32 regaddr, u32 bitmask,
+			      u32 data);
+u32 rtl8723ae_phy_query_rf_reg(struct ieee80211_hw *hw,
+			       enum radio_path rfpath, u32 regaddr,
+			       u32 bitmask);
+void rtl8723ae_phy_set_rf_reg(struct ieee80211_hw *hw,
+			      enum radio_path rfpath, u32 regaddr, u32 bitmask,
+			      u32 data);
+bool rtl8723ae_phy_mac_config(struct ieee80211_hw *hw);
+bool rtl8723ae_phy_bb_config(struct ieee80211_hw *hw);
+bool rtl8723ae_phy_rf_config(struct ieee80211_hw *hw);
+bool rtl92c_phy_config_rf_with_feaderfile(struct ieee80211_hw *hw,
+					  enum radio_path rfpath);
+void rtl8723ae_phy_get_hw_reg_originalvalue(struct ieee80211_hw *hw);
+void rtl8723ae_phy_get_txpower_level(struct ieee80211_hw *hw, long *powerlevel);
+void rtl8723ae_phy_set_txpower_level(struct ieee80211_hw *hw, u8 channel);
+bool rtl8723ae_phy_update_txpower_dbm(struct ieee80211_hw *hw,
+				      long power_indbm);
+void rtl8723ae_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation);
+void rtl8723ae_phy_set_bw_mode_callback(struct ieee80211_hw *hw);
+void rtl8723ae_phy_set_bw_mode(struct ieee80211_hw *hw,
+			       enum nl80211_channel_type ch_type);
+void rtl8723ae_phy_sw_chnl_callback(struct ieee80211_hw *hw);
+u8 rtl8723ae_phy_sw_chnl(struct ieee80211_hw *hw);
+void rtl8723ae_phy_iq_calibrate(struct ieee80211_hw *hw, bool recovery);
 void rtl8723ae_phy_lc_calibrate(struct ieee80211_hw *hw);
 void rtl8723ae_phy_set_rfpath_switch(struct ieee80211_hw *hw, bool bmain);
 bool rtl8723ae_phy_config_rf_with_headerfile(struct ieee80211_hw *hw,
 					     enum radio_path rfpath);
 bool rtl8723ae_phy_set_io_cmd(struct ieee80211_hw *hw, enum io_type iotype);
-extern bool rtl8723ae_phy_set_rf_power_state(struct ieee80211_hw *hw,
-					     enum rf_pwrstate rfpwr_state);
+bool rtl8723ae_phy_set_rf_power_state(struct ieee80211_hw *hw,
+				      enum rf_pwrstate rfpwr_state);
 
 #endif
diff --git a/drivers/net/wireless/rtlwifi/rtl8723ae/rf.h b/drivers/net/wireless/rtlwifi/rtl8723ae/rf.h
index d0f9dd79abea..57f1933ee663 100644
--- a/drivers/net/wireless/rtlwifi/rtl8723ae/rf.h
+++ b/drivers/net/wireless/rtlwifi/rtl8723ae/rf.h
@@ -32,12 +32,11 @@
 
 #define RF6052_MAX_TX_PWR		0x3F
 
-extern void rtl8723ae_phy_rf6052_set_bandwidth(struct ieee80211_hw *hw,
-					    u8 bandwidth);
-extern void rtl8723ae_phy_rf6052_set_cck_txpower(struct ieee80211_hw *hw,
-					      u8 *ppowerlevel);
-extern void rtl8723ae_phy_rf6052_set_ofdm_txpower(struct ieee80211_hw *hw,
-					       u8 *ppowerlevel, u8 channel);
-extern bool rtl8723ae_phy_rf6052_config(struct ieee80211_hw *hw);
+void rtl8723ae_phy_rf6052_set_bandwidth(struct ieee80211_hw *hw, u8 bandwidth);
+void rtl8723ae_phy_rf6052_set_cck_txpower(struct ieee80211_hw *hw,
+					  u8 *ppowerlevel);
+void rtl8723ae_phy_rf6052_set_ofdm_txpower(struct ieee80211_hw *hw,
+					   u8 *ppowerlevel, u8 channel);
+bool rtl8723ae_phy_rf6052_config(struct ieee80211_hw *hw);
 
 #endif
-- 
cgit 


From 691c6fd2a2d6b6db08b17beec5e42ab0687058c7 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao2.yu@samsung.com>
Date: Tue, 24 Sep 2013 09:26:24 +0800
Subject: f2fs: remove unneeded write checkpoint in recover_fsync_data

Previously, recover_fsync_data still to write checkpoint when there is
nothing to recover with normal umount image.
It may reduce mount performance and flash memory lifetime, so let's remove
it.

Signed-off-by: Tan Shu <shu.tan@samsung.com>
Signed-off-by: Yu Chao <chao2.yu@samsung.com>
Reviewed-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/recovery.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 51ef5eec33d7..d43e4cd1f815 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -419,6 +419,7 @@ int recover_fsync_data(struct f2fs_sb_info *sbi)
 {
 	struct list_head inode_list;
 	int err;
+	int need_writecp = 0;
 
 	fsync_entry_slab = f2fs_kmem_cache_create("f2fs_fsync_inode_entry",
 			sizeof(struct fsync_inode_entry), NULL);
@@ -436,6 +437,8 @@ int recover_fsync_data(struct f2fs_sb_info *sbi)
 	if (list_empty(&inode_list))
 		goto out;
 
+	need_writecp = 1;
+
 	/* step #2: recover data */
 	err = recover_data(sbi, &inode_list, CURSEG_WARM_NODE);
 	BUG_ON(!list_empty(&inode_list));
@@ -443,7 +446,7 @@ out:
 	destroy_fsync_dnodes(&inode_list);
 	kmem_cache_destroy(fsync_entry_slab);
 	sbi->por_doing = 0;
-	if (!err)
+	if (!err && need_writecp)
 		write_checkpoint(sbi, false);
 	return err;
 }
-- 
cgit 


From f6913f990273a1fbfc0ec501d4998faa4f1ebae6 Mon Sep 17 00:00:00 2001
From: Toshi Kani <toshi.kani@hp.com>
Date: Thu, 29 Aug 2013 18:22:06 -0600
Subject: hotplug / x86: Fix online state in cpu0 debug interface

_debug_hotplug_cpu() is a debug interface that puts cpu0 offline during
boot-up when CONFIG_DEBUG_HOTPLUG_CPU0 is set.  After cpu0 is put offline
in this interface, however, /sys/devices/system/cpu/cpu0/online still
shows 1 (online).

This patch fixes _debug_hotplug_cpu() to update dev->offline when CPU
online/offline operation succeeded.

Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/x86/kernel/topology.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/topology.c b/arch/x86/kernel/topology.c
index 6e60b5fe2244..5823bbd668f4 100644
--- a/arch/x86/kernel/topology.c
+++ b/arch/x86/kernel/topology.c
@@ -72,16 +72,19 @@ int __ref _debug_hotplug_cpu(int cpu, int action)
 		ret = cpu_down(cpu);
 		if (!ret) {
 			pr_info("CPU %u is now offline\n", cpu);
+			dev->offline = true;
 			kobject_uevent(&dev->kobj, KOBJ_OFFLINE);
 		} else
 			pr_debug("Can't offline CPU%d.\n", cpu);
 		break;
 	case 1:
 		ret = cpu_up(cpu);
-		if (!ret)
+		if (!ret) {
+			dev->offline = false;
 			kobject_uevent(&dev->kobj, KOBJ_ONLINE);
-		else
+		} else {
 			pr_debug("Can't online CPU%d.\n", cpu);
+		}
 		break;
 	default:
 		ret = -EINVAL;
-- 
cgit 


From 574b851e99923c884fee4e0d7cf7e7c3dc023ffa Mon Sep 17 00:00:00 2001
From: Toshi Kani <toshi.kani@hp.com>
Date: Thu, 29 Aug 2013 18:22:07 -0600
Subject: hotplug / x86: Add hotplug lock to missing places

lock_device_hotplug[_sysfs]() serializes CPU & Memory online/offline
and hotplug operations.  However, this lock is not held in the debug
interfaces below that initiate CPU online/offline operations.

 - _debug_hotplug_cpu(), cpu0 hotplug test interface enabled by
   CONFIG_DEBUG_HOTPLUG_CPU0.
 - cpu_probe_store() and cpu_release_store(), cpu hotplug test interface
   enabled by CONFIG_ARCH_CPU_PROBE_RELEASE.

This patch changes the above interfaces to hold lock_device_hotplug().

Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/x86/kernel/topology.c |  2 ++
 drivers/base/cpu.c         | 24 ++++++++++++++++++++++--
 2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/topology.c b/arch/x86/kernel/topology.c
index 5823bbd668f4..a3f35ebb3b52 100644
--- a/arch/x86/kernel/topology.c
+++ b/arch/x86/kernel/topology.c
@@ -65,6 +65,7 @@ int __ref _debug_hotplug_cpu(int cpu, int action)
 	if (!cpu_is_hotpluggable(cpu))
 		return -EINVAL;
 
+	lock_device_hotplug();
 	cpu_hotplug_driver_lock();
 
 	switch (action) {
@@ -91,6 +92,7 @@ int __ref _debug_hotplug_cpu(int cpu, int action)
 	}
 
 	cpu_hotplug_driver_unlock();
+	unlock_device_hotplug();
 
 	return ret;
 }
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 848ebbd25717..51f5d7fe2f0b 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -93,7 +93,17 @@ static ssize_t cpu_probe_store(struct device *dev,
 			       const char *buf,
 			       size_t count)
 {
-	return arch_cpu_probe(buf, count);
+	ssize_t cnt;
+	int ret;
+
+	ret = lock_device_hotplug_sysfs();
+	if (ret)
+		return ret;
+
+	cnt = arch_cpu_probe(buf, count);
+
+	unlock_device_hotplug();
+	return cnt;
 }
 
 static ssize_t cpu_release_store(struct device *dev,
@@ -101,7 +111,17 @@ static ssize_t cpu_release_store(struct device *dev,
 				 const char *buf,
 				 size_t count)
 {
-	return arch_cpu_release(buf, count);
+	ssize_t cnt;
+	int ret;
+
+	ret = lock_device_hotplug_sysfs();
+	if (ret)
+		return ret;
+
+	cnt = arch_cpu_release(buf, count);
+
+	unlock_device_hotplug();
+	return cnt;
 }
 
 static DEVICE_ATTR(probe, S_IWUSR, NULL, cpu_probe_store);
-- 
cgit 


From 1cad5e9a3978d182aa9b0e909fb0379da5ba45af Mon Sep 17 00:00:00 2001
From: Toshi Kani <toshi.kani@hp.com>
Date: Thu, 29 Aug 2013 18:22:08 -0600
Subject: hotplug / x86: Disable ARCH_CPU_PROBE_RELEASE on x86

Commit d7c53c9e enabled ARCH_CPU_PROBE_RELEASE on x86 in order to
serialize CPU online/offline operations.  Although it is the config
option to enable CPU hotplug test interfaces, probe & release, it is
also the option to enable cpu_hotplug_driver_lock() as well.  Therefore,
this option had to be enabled on x86 with dummy arch_cpu_probe() and
arch_cpu_release().

Since then, lock_device_hotplug() was introduced to serialize CPU
online/offline & hotplug operations.  Therefore, this config option
is no longer required for the serialization.  This patch disables
this config option on x86 and revert the changes made by commit
d7c53c9e.

Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/x86/Kconfig          |  4 ----
 arch/x86/kernel/smpboot.c | 21 ---------------------
 2 files changed, 25 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index ee2fb9d37745..dcdb5130cf85 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -254,10 +254,6 @@ config ARCH_HWEIGHT_CFLAGS
 	default "-fcall-saved-ecx -fcall-saved-edx" if X86_32
 	default "-fcall-saved-rdi -fcall-saved-rsi -fcall-saved-rdx -fcall-saved-rcx -fcall-saved-r8 -fcall-saved-r9 -fcall-saved-r10 -fcall-saved-r11" if X86_64
 
-config ARCH_CPU_PROBE_RELEASE
-	def_bool y
-	depends on HOTPLUG_CPU
-
 config ARCH_SUPPORTS_UPROBES
 	def_bool y
 
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 6cacab671f9b..e73b3f53310c 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -82,27 +82,6 @@
 /* State of each CPU */
 DEFINE_PER_CPU(int, cpu_state) = { 0 };
 
-#ifdef CONFIG_HOTPLUG_CPU
-/*
- * We need this for trampoline_base protection from concurrent accesses when
- * off- and onlining cores wildly.
- */
-static DEFINE_MUTEX(x86_cpu_hotplug_driver_mutex);
-
-void cpu_hotplug_driver_lock(void)
-{
-	mutex_lock(&x86_cpu_hotplug_driver_mutex);
-}
-
-void cpu_hotplug_driver_unlock(void)
-{
-	mutex_unlock(&x86_cpu_hotplug_driver_mutex);
-}
-
-ssize_t arch_cpu_probe(const char *buf, size_t count) { return -1; }
-ssize_t arch_cpu_release(const char *buf, size_t count) { return -1; }
-#endif
-
 /* Number of siblings per CPU package */
 int smp_num_siblings = 1;
 EXPORT_SYMBOL(smp_num_siblings);
-- 
cgit 


From 885166c03c1d0ea6d79d707229340e3161ed1316 Mon Sep 17 00:00:00 2001
From: "Russ W. Knize" <russ@knizefamily.net>
Date: Tue, 24 Sep 2013 09:35:40 -0500
Subject: f2fs: don't let the orphan inode counter underflow

Accounting errors from buggy code calling the acquire/release/remove
orphan inode interfaces can cause n_orphans to underflow, which will
then cause acquire_orphan_inode() to return -ENOSPC on the next
operation.  This commit guards against that condition.

Signed-off-by: Russ Knize <rknize@motorola.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/checkpoint.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index bb312201ca95..ca3944240db5 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -206,6 +206,7 @@ int acquire_orphan_inode(struct f2fs_sb_info *sbi)
 void release_orphan_inode(struct f2fs_sb_info *sbi)
 {
 	mutex_lock(&sbi->orphan_inode_mutex);
+	BUG_ON(sbi->n_orphans == 0);
 	sbi->n_orphans--;
 	mutex_unlock(&sbi->orphan_inode_mutex);
 }
@@ -253,6 +254,7 @@ void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
 		if (orphan->ino == ino) {
 			list_del(&orphan->list);
 			kmem_cache_free(orphan_entry_slab, orphan);
+			BUG_ON(sbi->n_orphans == 0);
 			sbi->n_orphans--;
 			break;
 		}
-- 
cgit 


From 52ab956000214aa111254e52e5eac3d91bd7cf4b Mon Sep 17 00:00:00 2001
From: Russ Knize <Russ.Knize@motorola.com>
Date: Tue, 24 Sep 2013 15:49:23 -0500
Subject: f2fs: don't GC or take an fs_lock from f2fs_initxattrs()

f2fs_initxattrs() is called internally from within F2FS and should
not call functions that are used by VFS handlers.  This avoids
certain deadlocks:

- vfs_create()
 - f2fs_create() <-- takes an fs_lock
  - f2fs_add_link()
   - __f2fs_add_link()
    - init_inode_metadata()
     - f2fs_init_security()
      - security_inode_init_security()
       - f2fs_initxattrs()
        - f2fs_setxattr() <-- also takes an fs_lock

If the caller happens to grab the same fs_lock from the pool in both
places, they will deadlock.  There are also deadlocks involving
multiple threads and mutexes:

- f2fs_write_begin()
 - f2fs_balance_fs() <-- takes gc_mutex
  - f2fs_gc()
   - write_checkpoint()
    - block_operations()
     - mutex_lock_all() <-- blocks trying to grab all fs_locks

- f2fs_mkdir() <-- takes an fs_lock
 - __f2fs_add_link()
  - f2fs_init_security()
   - security_inode_init_security()
    - f2fs_initxattrs()
     - f2fs_setxattr()
      - f2fs_balance_fs() <-- blocks trying to take gc_mutex

Signed-off-by: Russ Knize <Russ.Knize@motorola.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/xattr.c | 35 +++++++++++++++++++++++++----------
 1 file changed, 25 insertions(+), 10 deletions(-)

diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index 1ac8a5f6e380..3d900ea34e47 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -154,6 +154,9 @@ static int f2fs_xattr_advise_set(struct dentry *dentry, const char *name,
 }
 
 #ifdef CONFIG_F2FS_FS_SECURITY
+static int __f2fs_setxattr(struct inode *inode, int name_index,
+			const char *name, const void *value, size_t value_len,
+			struct page *ipage);
 static int f2fs_initxattrs(struct inode *inode, const struct xattr *xattr_array,
 		void *page)
 {
@@ -161,7 +164,7 @@ static int f2fs_initxattrs(struct inode *inode, const struct xattr *xattr_array,
 	int err = 0;
 
 	for (xattr = xattr_array; xattr->name != NULL; xattr++) {
-		err = f2fs_setxattr(inode, F2FS_XATTR_INDEX_SECURITY,
+		err = __f2fs_setxattr(inode, F2FS_XATTR_INDEX_SECURITY,
 				xattr->name, xattr->value,
 				xattr->value_len, (struct page *)page);
 		if (err < 0)
@@ -469,16 +472,15 @@ cleanup:
 	return error;
 }
 
-int f2fs_setxattr(struct inode *inode, int name_index, const char *name,
-			const void *value, size_t value_len, struct page *ipage)
+static int __f2fs_setxattr(struct inode *inode, int name_index,
+			const char *name, const void *value, size_t value_len,
+			struct page *ipage)
 {
-	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
 	struct f2fs_inode_info *fi = F2FS_I(inode);
 	struct f2fs_xattr_entry *here, *last;
 	void *base_addr;
 	int found, newsize;
 	size_t name_len;
-	int ilock;
 	__u32 new_hsize;
 	int error = -ENOMEM;
 
@@ -493,10 +495,6 @@ int f2fs_setxattr(struct inode *inode, int name_index, const char *name,
 	if (name_len > F2FS_NAME_LEN || value_len > MAX_VALUE_LEN(inode))
 		return -ERANGE;
 
-	f2fs_balance_fs(sbi);
-
-	ilock = mutex_lock_op(sbi);
-
 	base_addr = read_all_xattrs(inode, ipage);
 	if (!base_addr)
 		goto exit;
@@ -578,7 +576,24 @@ int f2fs_setxattr(struct inode *inode, int name_index, const char *name,
 	else
 		update_inode_page(inode);
 exit:
-	mutex_unlock_op(sbi, ilock);
 	kzfree(base_addr);
 	return error;
 }
+
+int f2fs_setxattr(struct inode *inode, int name_index, const char *name,
+			const void *value, size_t value_len, struct page *ipage)
+{
+	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
+	int ilock;
+	int err;
+
+	f2fs_balance_fs(sbi);
+
+	ilock = mutex_lock_op(sbi);
+
+	err = __f2fs_setxattr(inode, name_index, name, value, value_len, ipage);
+
+	mutex_unlock_op(sbi, ilock);
+
+	return err;
+}
-- 
cgit 


From 2e5558f4a5cf16a7394fd5770087303db8912c66 Mon Sep 17 00:00:00 2001
From: "Russ W. Knize" <rknize@gmail.com>
Date: Tue, 24 Sep 2013 09:40:57 -0500
Subject: f2fs: account for orphan inodes during recovery

During recovery, orphan inodes are deleted via truncate_hole().
These orphans are added by recover_dentry() via f2fs_delete_entry().
However, f2fs_delete_entry() adds them via add_orphan_inode()
without calling acquire_orphan_inode() first.  This prevents the
counters from being incremented properly, which causes them to
underflow when remove_orphan_inode() is called later on.

Signed-off-by: Russ Knize <rknize@motorola.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/recovery.c | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index d43e4cd1f815..a15d122fdc50 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -64,24 +64,31 @@ static int recover_dentry(struct page *ipage, struct inode *inode)
 	name.name = raw_inode->i_name;
 retry:
 	de = f2fs_find_entry(dir, &name, &page);
-	if (de && inode->i_ino == le32_to_cpu(de->ino)) {
-		kunmap(page);
-		f2fs_put_page(page, 0);
-		goto out;
-	}
+	if (de && inode->i_ino == le32_to_cpu(de->ino))
+		goto out_unmap_put;
 	if (de) {
 		einode = f2fs_iget(inode->i_sb, le32_to_cpu(de->ino));
 		if (IS_ERR(einode)) {
 			WARN_ON(1);
 			if (PTR_ERR(einode) == -ENOENT)
 				err = -EEXIST;
-			goto out;
+			goto out_unmap_put;
+		}
+		err = acquire_orphan_inode(F2FS_SB(inode->i_sb));
+		if (err) {
+			iput(einode);
+			goto out_unmap_put;
 		}
 		f2fs_delete_entry(de, page, einode);
 		iput(einode);
 		goto retry;
 	}
 	err = __f2fs_add_link(dir, &name, inode);
+	goto out;
+
+out_unmap_put:
+	kunmap(page);
+	f2fs_put_page(page, 0);
 out:
 	f2fs_msg(inode->i_sb, KERN_NOTICE, "recover_inode and its dentry: "
 			"ino = %x, name = %s, dir = %lx, err = %d",
-- 
cgit 


From 04fa2f7f837601903e5fe0f93bc2af8559d8c035 Mon Sep 17 00:00:00 2001
From: Shuah Khan <shuah.kh@samsung.com>
Date: Tue, 24 Sep 2013 15:21:19 -0600
Subject: iommu: Add iommu_error class event to iommu trace

iommu_error class event can be enabled to trigger when an iommu
error occurs. This trace event is intended to be called to report the
error information. Trace information includes driver name, device name,
iova, and flags.

iommu_error:io_page_fault

Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---
 drivers/iommu/iommu-traces.c |  3 +++
 include/trace/events/iommu.h | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/drivers/iommu/iommu-traces.c b/drivers/iommu/iommu-traces.c
index a2af60f31810..bf3b317ff0c1 100644
--- a/drivers/iommu/iommu-traces.c
+++ b/drivers/iommu/iommu-traces.c
@@ -22,3 +22,6 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(detach_device_from_domain);
 /* iommu_map_unmap */
 EXPORT_TRACEPOINT_SYMBOL_GPL(map);
 EXPORT_TRACEPOINT_SYMBOL_GPL(unmap);
+
+/* iommu_error */
+EXPORT_TRACEPOINT_SYMBOL_GPL(io_page_fault);
diff --git a/include/trace/events/iommu.h b/include/trace/events/iommu.h
index 86bcc5a9fedc..a8f5c32d174b 100644
--- a/include/trace/events/iommu.h
+++ b/include/trace/events/iommu.h
@@ -123,6 +123,39 @@ DEFINE_EVENT_PRINT(iommu_map_unmap, unmap,
 			__entry->iova, __entry->size
 	)
 );
+
+DECLARE_EVENT_CLASS(iommu_error,
+
+	TP_PROTO(struct device *dev, unsigned long iova, int flags),
+
+	TP_ARGS(dev, iova, flags),
+
+	TP_STRUCT__entry(
+		__string(device, dev_name(dev))
+		__string(driver, dev_driver_string(dev))
+		__field(u64, iova)
+		__field(int, flags)
+	),
+
+	TP_fast_assign(
+		__assign_str(device, dev_name(dev));
+		__assign_str(driver, dev_driver_string(dev));
+		__entry->iova = iova;
+		__entry->flags = flags;
+	),
+
+	TP_printk("IOMMU:%s %s iova=0x%016llx flags=0x%04x",
+			__get_str(driver), __get_str(device),
+			__entry->iova, __entry->flags
+	)
+);
+
+DEFINE_EVENT(iommu_error, io_page_fault,
+
+	TP_PROTO(struct device *dev, unsigned long iova, int flags),
+
+	TP_ARGS(dev, iova, flags)
+);
 #endif /* _TRACE_IOMMU_H */
 
 /* This part must be outside protection */
-- 
cgit 


From 56fa484969c367e3ae43a012a7b99f75bb4f3bdb Mon Sep 17 00:00:00 2001
From: Shuah Khan <shuah.kh@samsung.com>
Date: Tue, 24 Sep 2013 15:21:20 -0600
Subject: iommu: Change iommu driver to call io_page_fault trace event

Change iommu driver call io_page_fault trace event. This iommu_error class
event can be enabled to trigger when an iommu error occurs. Trace information
includes driver name, device name, iova, and flags.

Testing:
Added trace calls to iommu_prepare_identity_map() for testing some of the
conditions that are hard to trigger. Here is the trace from the testing:

       swapper/0-1     [003] ....     2.003774: io_page_fault: IOMMU:pci 0000:00:02.0 iova=0x00000000cb800000 flags=0x0002
       swapper/0-1     [003] ....     2.004098: io_page_fault: IOMMU:pci 0000:00:1d.0 iova=0x00000000cadc6000 flags=0x0002
       swapper/0-1     [003] ....     2.004115: io_page_fault: IOMMU:pci 0000:00:1a.0 iova=0x00000000cadc6000 flags=0x0002
       swapper/0-1     [003] ....     2.004129: io_page_fault: IOMMU:pci 0000:00:1f.0 iova=0x0000000000000000 flags=0x0002

Signed-off-by: Shuah Khan <shuah.kh@samsung.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---
 include/linux/iommu.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 7ea319e95b47..a444c790fa72 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -22,6 +22,7 @@
 #include <linux/errno.h>
 #include <linux/err.h>
 #include <linux/types.h>
+#include <trace/events/iommu.h>
 
 #define IOMMU_READ	(1)
 #define IOMMU_WRITE	(2)
@@ -227,6 +228,7 @@ static inline int report_iommu_fault(struct iommu_domain *domain,
 		ret = domain->handler(domain, dev, iova, flags,
 						domain->handler_token);
 
+	trace_io_page_fault(dev, iova, flags);
 	return ret;
 }
 
-- 
cgit 


From 403cfb53fb450d53751fdc7ee0cd6652419612cf Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oneukum@suse.de>
Date: Wed, 25 Sep 2013 09:42:55 +0200
Subject: HID: hid-elo: some systems cannot stomach work around

Some systems although they have firmware class 'M', which usually
needs a work around to not crash, must not be subjected to the
work around because the work around crashes them. They cannot be
told apart by their own device descriptor, but as they are part
of compound devices, can be identified by looking at their siblings.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-elo.c | 35 ++++++++++++++++++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/drivers/hid/hid-elo.c b/drivers/hid/hid-elo.c
index f042a6cf8b18..4e49462870ab 100644
--- a/drivers/hid/hid-elo.c
+++ b/drivers/hid/hid-elo.c
@@ -181,7 +181,40 @@ fail:
  */
 static bool elo_broken_firmware(struct usb_device *dev)
 {
-	return use_fw_quirk && le16_to_cpu(dev->descriptor.bcdDevice) == 0x10d;
+	struct usb_device *hub = dev->parent;
+	struct usb_device *child = NULL;
+	u16 fw_lvl = le16_to_cpu(dev->descriptor.bcdDevice);
+	u16 child_vid, child_pid;
+	int i;
+    
+	if (!use_fw_quirk)
+		return false;
+	if (fw_lvl != 0x10d)
+		return false;
+
+	/* iterate sibling devices of the touch controller */
+	usb_hub_for_each_child(hub, i, child) {
+		child_vid = le16_to_cpu(child->descriptor.idVendor);
+		child_pid = le16_to_cpu(child->descriptor.idProduct);
+
+		/*
+		 * If one of the devices below is present attached as a sibling of 
+		 * the touch controller then  this is a newer IBM 4820 monitor that 
+		 * does not need the IBM-requested workaround if fw level is
+		 * 0x010d - aka 'M'.
+		 * No other HW can have this combination.
+		 */
+		if (child_vid==0x04b3) {
+			switch (child_pid) {
+			case 0x4676: /* 4820 21x Video */
+			case 0x4677: /* 4820 51x Video */
+			case 0x4678: /* 4820 2Lx Video */
+			case 0x4679: /* 4820 5Lx Video */
+				return false;
+			}
+		}
+	}
+	return true;
 }
 
 static int elo_probe(struct hid_device *hdev, const struct hid_device_id *id)
-- 
cgit 


From 4172fe2f8a479e2237459918edc83b027efa8808 Mon Sep 17 00:00:00 2001
From: Roy Franz <roy.franz@linaro.org>
Date: Sun, 22 Sep 2013 15:45:25 -0700
Subject: EFI stub documentation updates

Move efi-stub.txt out of x86 directory and into common directory
in preparation for adding ARM EFI stub support.

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 Documentation/efi-stub.txt     | 65 ++++++++++++++++++++++++++++++++++++++++++
 Documentation/x86/efi-stub.txt | 65 ------------------------------------------
 arch/x86/Kconfig               |  2 +-
 3 files changed, 66 insertions(+), 66 deletions(-)
 create mode 100644 Documentation/efi-stub.txt
 delete mode 100644 Documentation/x86/efi-stub.txt

diff --git a/Documentation/efi-stub.txt b/Documentation/efi-stub.txt
new file mode 100644
index 000000000000..44e6bb6ead10
--- /dev/null
+++ b/Documentation/efi-stub.txt
@@ -0,0 +1,65 @@
+			  The EFI Boot Stub
+		     ---------------------------
+
+On the x86 platform, a bzImage can masquerade as a PE/COFF image,
+thereby convincing EFI firmware loaders to load it as an EFI
+executable. The code that modifies the bzImage header, along with the
+EFI-specific entry point that the firmware loader jumps to are
+collectively known as the "EFI boot stub", and live in
+arch/x86/boot/header.S and arch/x86/boot/compressed/eboot.c,
+respectively.
+
+By using the EFI boot stub it's possible to boot a Linux kernel
+without the use of a conventional EFI boot loader, such as grub or
+elilo. Since the EFI boot stub performs the jobs of a boot loader, in
+a certain sense it *IS* the boot loader.
+
+The EFI boot stub is enabled with the CONFIG_EFI_STUB kernel option.
+
+
+**** How to install bzImage.efi
+
+The bzImage located in arch/x86/boot/bzImage must be copied to the EFI
+System Partiion (ESP) and renamed with the extension ".efi". Without
+the extension the EFI firmware loader will refuse to execute it. It's
+not possible to execute bzImage.efi from the usual Linux file systems
+because EFI firmware doesn't have support for them.
+
+
+**** Passing kernel parameters from the EFI shell
+
+Arguments to the kernel can be passed after bzImage.efi, e.g.
+
+	fs0:> bzImage.efi console=ttyS0 root=/dev/sda4
+
+
+**** The "initrd=" option
+
+Like most boot loaders, the EFI stub allows the user to specify
+multiple initrd files using the "initrd=" option. This is the only EFI
+stub-specific command line parameter, everything else is passed to the
+kernel when it boots.
+
+The path to the initrd file must be an absolute path from the
+beginning of the ESP, relative path names do not work. Also, the path
+is an EFI-style path and directory elements must be separated with
+backslashes (\). For example, given the following directory layout,
+
+fs0:>
+	Kernels\
+			bzImage.efi
+			initrd-large.img
+
+	Ramdisks\
+			initrd-small.img
+			initrd-medium.img
+
+to boot with the initrd-large.img file if the current working
+directory is fs0:\Kernels, the following command must be used,
+
+	fs0:\Kernels> bzImage.efi initrd=\Kernels\initrd-large.img
+
+Notice how bzImage.efi can be specified with a relative path. That's
+because the image we're executing is interpreted by the EFI shell,
+which understands relative paths, whereas the rest of the command line
+is passed to bzImage.efi.
diff --git a/Documentation/x86/efi-stub.txt b/Documentation/x86/efi-stub.txt
deleted file mode 100644
index 44e6bb6ead10..000000000000
--- a/Documentation/x86/efi-stub.txt
+++ /dev/null
@@ -1,65 +0,0 @@
-			  The EFI Boot Stub
-		     ---------------------------
-
-On the x86 platform, a bzImage can masquerade as a PE/COFF image,
-thereby convincing EFI firmware loaders to load it as an EFI
-executable. The code that modifies the bzImage header, along with the
-EFI-specific entry point that the firmware loader jumps to are
-collectively known as the "EFI boot stub", and live in
-arch/x86/boot/header.S and arch/x86/boot/compressed/eboot.c,
-respectively.
-
-By using the EFI boot stub it's possible to boot a Linux kernel
-without the use of a conventional EFI boot loader, such as grub or
-elilo. Since the EFI boot stub performs the jobs of a boot loader, in
-a certain sense it *IS* the boot loader.
-
-The EFI boot stub is enabled with the CONFIG_EFI_STUB kernel option.
-
-
-**** How to install bzImage.efi
-
-The bzImage located in arch/x86/boot/bzImage must be copied to the EFI
-System Partiion (ESP) and renamed with the extension ".efi". Without
-the extension the EFI firmware loader will refuse to execute it. It's
-not possible to execute bzImage.efi from the usual Linux file systems
-because EFI firmware doesn't have support for them.
-
-
-**** Passing kernel parameters from the EFI shell
-
-Arguments to the kernel can be passed after bzImage.efi, e.g.
-
-	fs0:> bzImage.efi console=ttyS0 root=/dev/sda4
-
-
-**** The "initrd=" option
-
-Like most boot loaders, the EFI stub allows the user to specify
-multiple initrd files using the "initrd=" option. This is the only EFI
-stub-specific command line parameter, everything else is passed to the
-kernel when it boots.
-
-The path to the initrd file must be an absolute path from the
-beginning of the ESP, relative path names do not work. Also, the path
-is an EFI-style path and directory elements must be separated with
-backslashes (\). For example, given the following directory layout,
-
-fs0:>
-	Kernels\
-			bzImage.efi
-			initrd-large.img
-
-	Ramdisks\
-			initrd-small.img
-			initrd-medium.img
-
-to boot with the initrd-large.img file if the current working
-directory is fs0:\Kernels, the following command must be used,
-
-	fs0:\Kernels> bzImage.efi initrd=\Kernels\initrd-large.img
-
-Notice how bzImage.efi can be specified with a relative path. That's
-because the image we're executing is interpreted by the EFI shell,
-which understands relative paths, whereas the rest of the command line
-is passed to bzImage.efi.
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index b32ebf92b0ce..ec65b51af959 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1579,7 +1579,7 @@ config EFI_STUB
           This kernel feature allows a bzImage to be loaded directly
 	  by EFI firmware without the use of a bootloader.
 
-	  See Documentation/x86/efi-stub.txt for more information.
+	  See Documentation/efi-stub.txt for more information.
 
 config SECCOMP
 	def_bool y
-- 
cgit 


From ed37ddffe201bfad7be3c45bc08bd65b5298adca Mon Sep 17 00:00:00 2001
From: Roy Franz <roy.franz@linaro.org>
Date: Sun, 22 Sep 2013 15:45:26 -0700
Subject: efi: Add proper definitions for some EFI function pointers.

The x86/AMD64 EFI stubs must use a call wrapper to convert between
the Linux and EFI ABIs, so void pointers are sufficient.  For ARM,
the ABIs are compatible, so we can directly invoke the function
pointers.  The functions that are used by the ARM stub are updated
to match the EFI definitions.
Also add some EFI types used by EFI functions.

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Acked-by: Mark Salter <msalter@redhat.com>
Reviewed-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 arch/x86/boot/compressed/eboot.h |  8 -------
 include/linux/efi.h              | 50 +++++++++++++++++++++++++++-------------
 2 files changed, 34 insertions(+), 24 deletions(-)

diff --git a/arch/x86/boot/compressed/eboot.h b/arch/x86/boot/compressed/eboot.h
index e5b0a8f91c5f..02265107cce3 100644
--- a/arch/x86/boot/compressed/eboot.h
+++ b/arch/x86/boot/compressed/eboot.h
@@ -10,8 +10,6 @@
 #define SEG_GRANULARITY_4KB	(1 << 0)
 
 #define DESC_TYPE_CODE_DATA	(1 << 0)
-
-#define EFI_PAGE_SIZE		(1UL << EFI_PAGE_SHIFT)
 #define EFI_READ_CHUNK_SIZE	(1024 * 1024)
 
 #define EFI_CONSOLE_OUT_DEVICE_GUID    \
@@ -62,10 +60,4 @@ struct efi_uga_draw_protocol {
 	void *blt;
 };
 
-struct efi_simple_text_output_protocol {
-	void *reset;
-	void *output_string;
-	void *test_string;
-};
-
 #endif /* BOOT_COMPRESSED_EBOOT_H */
diff --git a/include/linux/efi.h b/include/linux/efi.h
index c084b6d942c3..bc5687d0f315 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -39,6 +39,8 @@
 typedef unsigned long efi_status_t;
 typedef u8 efi_bool_t;
 typedef u16 efi_char16_t;		/* UNICODE character */
+typedef u64 efi_physical_addr_t;
+typedef void *efi_handle_t;
 
 
 typedef struct {
@@ -96,6 +98,7 @@ typedef	struct {
 #define EFI_MEMORY_DESCRIPTOR_VERSION	1
 
 #define EFI_PAGE_SHIFT		12
+#define EFI_PAGE_SIZE		(1UL << EFI_PAGE_SHIFT)
 
 typedef struct {
 	u32 type;
@@ -157,11 +160,13 @@ typedef struct {
 	efi_table_hdr_t hdr;
 	void *raise_tpl;
 	void *restore_tpl;
-	void *allocate_pages;
-	void *free_pages;
-	void *get_memory_map;
-	void *allocate_pool;
-	void *free_pool;
+	efi_status_t (*allocate_pages)(int, int, unsigned long,
+				       efi_physical_addr_t *);
+	efi_status_t (*free_pages)(efi_physical_addr_t, unsigned long);
+	efi_status_t (*get_memory_map)(unsigned long *, void *, unsigned long *,
+				       unsigned long *, u32 *);
+	efi_status_t (*allocate_pool)(int, unsigned long, void **);
+	efi_status_t (*free_pool)(void *);
 	void *create_event;
 	void *set_timer;
 	void *wait_for_event;
@@ -171,7 +176,7 @@ typedef struct {
 	void *install_protocol_interface;
 	void *reinstall_protocol_interface;
 	void *uninstall_protocol_interface;
-	void *handle_protocol;
+	efi_status_t (*handle_protocol)(efi_handle_t, efi_guid_t *, void **);
 	void *__reserved;
 	void *register_protocol_notify;
 	void *locate_handle;
@@ -181,7 +186,7 @@ typedef struct {
 	void *start_image;
 	void *exit;
 	void *unload_image;
-	void *exit_boot_services;
+	efi_status_t (*exit_boot_services)(efi_handle_t, unsigned long);
 	void *get_next_monotonic_count;
 	void *stall;
 	void *set_watchdog_timer;
@@ -494,10 +499,6 @@ typedef struct {
 	unsigned long unload;
 } efi_loaded_image_t;
 
-typedef struct {
-	u64 revision;
-	void *open_volume;
-} efi_file_io_interface_t;
 
 typedef struct {
 	u64 size;
@@ -510,20 +511,30 @@ typedef struct {
 	efi_char16_t filename[1];
 } efi_file_info_t;
 
-typedef struct {
+typedef struct _efi_file_handle {
 	u64 revision;
-	void *open;
-	void *close;
+	efi_status_t (*open)(struct _efi_file_handle *,
+			     struct _efi_file_handle **,
+			     efi_char16_t *, u64, u64);
+	efi_status_t (*close)(struct _efi_file_handle *);
 	void *delete;
-	void *read;
+	efi_status_t (*read)(struct _efi_file_handle *, unsigned long *,
+			     void *);
 	void *write;
 	void *get_position;
 	void *set_position;
-	void *get_info;
+	efi_status_t (*get_info)(struct _efi_file_handle *, efi_guid_t *,
+			unsigned long *, void *);
 	void *set_info;
 	void *flush;
 } efi_file_handle_t;
 
+typedef struct _efi_file_io_interface {
+	u64 revision;
+	int (*open_volume)(struct _efi_file_io_interface *,
+			   efi_file_handle_t **);
+} efi_file_io_interface_t;
+
 #define EFI_FILE_MODE_READ	0x0000000000000001
 #define EFI_FILE_MODE_WRITE	0x0000000000000002
 #define EFI_FILE_MODE_CREATE	0x8000000000000000
@@ -792,6 +803,13 @@ struct efivar_entry {
 	struct kobject kobj;
 };
 
+
+struct efi_simple_text_output_protocol {
+	void *reset;
+	efi_status_t (*output_string)(void *, void *);
+	void *test_string;
+};
+
 extern struct list_head efivar_sysfs_list;
 
 static inline void
-- 
cgit 


From 7721da4c1ebf96ff815987011c1a0edef596b50a Mon Sep 17 00:00:00 2001
From: Roy Franz <roy.franz@linaro.org>
Date: Sun, 22 Sep 2013 15:45:27 -0700
Subject: efi: Move common EFI stub code from x86 arch code to common location

No code changes made, just moving functions and #define from x86 arch
directory to common location.  Code is shared using #include, similar
to how decompression code is shared among architectures.

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Acked-by: Mark Salter <msalter@redhat.com>
Reviewed-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 arch/x86/boot/compressed/eboot.c       | 442 +------------------------------
 arch/x86/boot/compressed/eboot.h       |   1 -
 drivers/firmware/efi/efi-stub-helper.c | 463 +++++++++++++++++++++++++++++++++
 3 files changed, 464 insertions(+), 442 deletions(-)
 create mode 100644 drivers/firmware/efi/efi-stub-helper.c

diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index b7388a425f09..ab0eefcc5123 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -19,214 +19,10 @@
 
 static efi_system_table_t *sys_table;
 
-static void efi_char16_printk(efi_char16_t *str)
-{
-	struct efi_simple_text_output_protocol *out;
-
-	out = (struct efi_simple_text_output_protocol *)sys_table->con_out;
-	efi_call_phys2(out->output_string, out, str);
-}
-
-static void efi_printk(char *str)
-{
-	char *s8;
-
-	for (s8 = str; *s8; s8++) {
-		efi_char16_t ch[2] = { 0 };
-
-		ch[0] = *s8;
-		if (*s8 == '\n') {
-			efi_char16_t nl[2] = { '\r', 0 };
-			efi_char16_printk(nl);
-		}
-
-		efi_char16_printk(ch);
-	}
-}
-
-static efi_status_t __get_map(efi_memory_desc_t **map, unsigned long *map_size,
-			      unsigned long *desc_size)
-{
-	efi_memory_desc_t *m = NULL;
-	efi_status_t status;
-	unsigned long key;
-	u32 desc_version;
-
-	*map_size = sizeof(*m) * 32;
-again:
-	/*
-	 * Add an additional efi_memory_desc_t because we're doing an
-	 * allocation which may be in a new descriptor region.
-	 */
-	*map_size += sizeof(*m);
-	status = efi_call_phys3(sys_table->boottime->allocate_pool,
-				EFI_LOADER_DATA, *map_size, (void **)&m);
-	if (status != EFI_SUCCESS)
-		goto fail;
-
-	status = efi_call_phys5(sys_table->boottime->get_memory_map, map_size,
-				m, &key, desc_size, &desc_version);
-	if (status == EFI_BUFFER_TOO_SMALL) {
-		efi_call_phys1(sys_table->boottime->free_pool, m);
-		goto again;
-	}
-
-	if (status != EFI_SUCCESS)
-		efi_call_phys1(sys_table->boottime->free_pool, m);
-
-fail:
-	*map = m;
-	return status;
-}
-
-/*
- * Allocate at the highest possible address that is not above 'max'.
- */
-static efi_status_t high_alloc(unsigned long size, unsigned long align,
-			      unsigned long *addr, unsigned long max)
-{
-	unsigned long map_size, desc_size;
-	efi_memory_desc_t *map;
-	efi_status_t status;
-	unsigned long nr_pages;
-	u64 max_addr = 0;
-	int i;
-
-	status = __get_map(&map, &map_size, &desc_size);
-	if (status != EFI_SUCCESS)
-		goto fail;
-
-	nr_pages = round_up(size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
-again:
-	for (i = 0; i < map_size / desc_size; i++) {
-		efi_memory_desc_t *desc;
-		unsigned long m = (unsigned long)map;
-		u64 start, end;
-
-		desc = (efi_memory_desc_t *)(m + (i * desc_size));
-		if (desc->type != EFI_CONVENTIONAL_MEMORY)
-			continue;
-
-		if (desc->num_pages < nr_pages)
-			continue;
 
-		start = desc->phys_addr;
-		end = start + desc->num_pages * (1UL << EFI_PAGE_SHIFT);
+#include "../../../../drivers/firmware/efi/efi-stub-helper.c"
 
-		if ((start + size) > end || (start + size) > max)
-			continue;
-
-		if (end - size > max)
-			end = max;
-
-		if (round_down(end - size, align) < start)
-			continue;
-
-		start = round_down(end - size, align);
-
-		/*
-		 * Don't allocate at 0x0. It will confuse code that
-		 * checks pointers against NULL.
-		 */
-		if (start == 0x0)
-			continue;
-
-		if (start > max_addr)
-			max_addr = start;
-	}
-
-	if (!max_addr)
-		status = EFI_NOT_FOUND;
-	else {
-		status = efi_call_phys4(sys_table->boottime->allocate_pages,
-					EFI_ALLOCATE_ADDRESS, EFI_LOADER_DATA,
-					nr_pages, &max_addr);
-		if (status != EFI_SUCCESS) {
-			max = max_addr;
-			max_addr = 0;
-			goto again;
-		}
-
-		*addr = max_addr;
-	}
-
-free_pool:
-	efi_call_phys1(sys_table->boottime->free_pool, map);
-
-fail:
-	return status;
-}
-
-/*
- * Allocate at the lowest possible address.
- */
-static efi_status_t low_alloc(unsigned long size, unsigned long align,
-			      unsigned long *addr)
-{
-	unsigned long map_size, desc_size;
-	efi_memory_desc_t *map;
-	efi_status_t status;
-	unsigned long nr_pages;
-	int i;
-
-	status = __get_map(&map, &map_size, &desc_size);
-	if (status != EFI_SUCCESS)
-		goto fail;
-
-	nr_pages = round_up(size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
-	for (i = 0; i < map_size / desc_size; i++) {
-		efi_memory_desc_t *desc;
-		unsigned long m = (unsigned long)map;
-		u64 start, end;
-
-		desc = (efi_memory_desc_t *)(m + (i * desc_size));
-
-		if (desc->type != EFI_CONVENTIONAL_MEMORY)
-			continue;
-
-		if (desc->num_pages < nr_pages)
-			continue;
-
-		start = desc->phys_addr;
-		end = start + desc->num_pages * (1UL << EFI_PAGE_SHIFT);
-
-		/*
-		 * Don't allocate at 0x0. It will confuse code that
-		 * checks pointers against NULL. Skip the first 8
-		 * bytes so we start at a nice even number.
-		 */
-		if (start == 0x0)
-			start += 8;
-
-		start = round_up(start, align);
-		if ((start + size) > end)
-			continue;
-
-		status = efi_call_phys4(sys_table->boottime->allocate_pages,
-					EFI_ALLOCATE_ADDRESS, EFI_LOADER_DATA,
-					nr_pages, &start);
-		if (status == EFI_SUCCESS) {
-			*addr = start;
-			break;
-		}
-	}
 
-	if (i == map_size / desc_size)
-		status = EFI_NOT_FOUND;
-
-free_pool:
-	efi_call_phys1(sys_table->boottime->free_pool, map);
-fail:
-	return status;
-}
-
-static void low_free(unsigned long size, unsigned long addr)
-{
-	unsigned long nr_pages;
-
-	nr_pages = round_up(size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
-	efi_call_phys2(sys_table->boottime->free_pages, addr, nr_pages);
-}
 
 static void find_bits(unsigned long mask, u8 *pos, u8 *size)
 {
@@ -624,242 +420,6 @@ void setup_graphics(struct boot_params *boot_params)
 	}
 }
 
-struct initrd {
-	efi_file_handle_t *handle;
-	u64 size;
-};
-
-/*
- * Check the cmdline for a LILO-style initrd= arguments.
- *
- * We only support loading an initrd from the same filesystem as the
- * kernel image.
- */
-static efi_status_t handle_ramdisks(efi_loaded_image_t *image,
-				    struct setup_header *hdr)
-{
-	struct initrd *initrds;
-	unsigned long initrd_addr;
-	efi_guid_t fs_proto = EFI_FILE_SYSTEM_GUID;
-	u64 initrd_total;
-	efi_file_io_interface_t *io;
-	efi_file_handle_t *fh;
-	efi_status_t status;
-	int nr_initrds;
-	char *str;
-	int i, j, k;
-
-	initrd_addr = 0;
-	initrd_total = 0;
-
-	str = (char *)(unsigned long)hdr->cmd_line_ptr;
-
-	j = 0;			/* See close_handles */
-
-	if (!str || !*str)
-		return EFI_SUCCESS;
-
-	for (nr_initrds = 0; *str; nr_initrds++) {
-		str = strstr(str, "initrd=");
-		if (!str)
-			break;
-
-		str += 7;
-
-		/* Skip any leading slashes */
-		while (*str == '/' || *str == '\\')
-			str++;
-
-		while (*str && *str != ' ' && *str != '\n')
-			str++;
-	}
-
-	if (!nr_initrds)
-		return EFI_SUCCESS;
-
-	status = efi_call_phys3(sys_table->boottime->allocate_pool,
-				EFI_LOADER_DATA,
-				nr_initrds * sizeof(*initrds),
-				&initrds);
-	if (status != EFI_SUCCESS) {
-		efi_printk("Failed to alloc mem for initrds\n");
-		goto fail;
-	}
-
-	str = (char *)(unsigned long)hdr->cmd_line_ptr;
-	for (i = 0; i < nr_initrds; i++) {
-		struct initrd *initrd;
-		efi_file_handle_t *h;
-		efi_file_info_t *info;
-		efi_char16_t filename_16[256];
-		unsigned long info_sz;
-		efi_guid_t info_guid = EFI_FILE_INFO_ID;
-		efi_char16_t *p;
-		u64 file_sz;
-
-		str = strstr(str, "initrd=");
-		if (!str)
-			break;
-
-		str += 7;
-
-		initrd = &initrds[i];
-		p = filename_16;
-
-		/* Skip any leading slashes */
-		while (*str == '/' || *str == '\\')
-			str++;
-
-		while (*str && *str != ' ' && *str != '\n') {
-			if ((u8 *)p >= (u8 *)filename_16 + sizeof(filename_16))
-				break;
-
-			if (*str == '/') {
-				*p++ = '\\';
-				*str++;
-			} else {
-				*p++ = *str++;
-			}
-		}
-
-		*p = '\0';
-
-		/* Only open the volume once. */
-		if (!i) {
-			efi_boot_services_t *boottime;
-
-			boottime = sys_table->boottime;
-
-			status = efi_call_phys3(boottime->handle_protocol,
-					image->device_handle, &fs_proto, &io);
-			if (status != EFI_SUCCESS) {
-				efi_printk("Failed to handle fs_proto\n");
-				goto free_initrds;
-			}
-
-			status = efi_call_phys2(io->open_volume, io, &fh);
-			if (status != EFI_SUCCESS) {
-				efi_printk("Failed to open volume\n");
-				goto free_initrds;
-			}
-		}
-
-		status = efi_call_phys5(fh->open, fh, &h, filename_16,
-					EFI_FILE_MODE_READ, (u64)0);
-		if (status != EFI_SUCCESS) {
-			efi_printk("Failed to open initrd file: ");
-			efi_char16_printk(filename_16);
-			efi_printk("\n");
-			goto close_handles;
-		}
-
-		initrd->handle = h;
-
-		info_sz = 0;
-		status = efi_call_phys4(h->get_info, h, &info_guid,
-					&info_sz, NULL);
-		if (status != EFI_BUFFER_TOO_SMALL) {
-			efi_printk("Failed to get initrd info size\n");
-			goto close_handles;
-		}
-
-grow:
-		status = efi_call_phys3(sys_table->boottime->allocate_pool,
-					EFI_LOADER_DATA, info_sz, &info);
-		if (status != EFI_SUCCESS) {
-			efi_printk("Failed to alloc mem for initrd info\n");
-			goto close_handles;
-		}
-
-		status = efi_call_phys4(h->get_info, h, &info_guid,
-					&info_sz, info);
-		if (status == EFI_BUFFER_TOO_SMALL) {
-			efi_call_phys1(sys_table->boottime->free_pool, info);
-			goto grow;
-		}
-
-		file_sz = info->file_size;
-		efi_call_phys1(sys_table->boottime->free_pool, info);
-
-		if (status != EFI_SUCCESS) {
-			efi_printk("Failed to get initrd info\n");
-			goto close_handles;
-		}
-
-		initrd->size = file_sz;
-		initrd_total += file_sz;
-	}
-
-	if (initrd_total) {
-		unsigned long addr;
-
-		/*
-		 * Multiple initrd's need to be at consecutive
-		 * addresses in memory, so allocate enough memory for
-		 * all the initrd's.
-		 */
-		status = high_alloc(initrd_total, 0x1000,
-				   &initrd_addr, hdr->initrd_addr_max);
-		if (status != EFI_SUCCESS) {
-			efi_printk("Failed to alloc highmem for initrds\n");
-			goto close_handles;
-		}
-
-		/* We've run out of free low memory. */
-		if (initrd_addr > hdr->initrd_addr_max) {
-			efi_printk("We've run out of free low memory\n");
-			status = EFI_INVALID_PARAMETER;
-			goto free_initrd_total;
-		}
-
-		addr = initrd_addr;
-		for (j = 0; j < nr_initrds; j++) {
-			u64 size;
-
-			size = initrds[j].size;
-			while (size) {
-				u64 chunksize;
-				if (size > EFI_READ_CHUNK_SIZE)
-					chunksize = EFI_READ_CHUNK_SIZE;
-				else
-					chunksize = size;
-				status = efi_call_phys3(fh->read,
-							initrds[j].handle,
-							&chunksize, addr);
-				if (status != EFI_SUCCESS) {
-					efi_printk("Failed to read initrd\n");
-					goto free_initrd_total;
-				}
-				addr += chunksize;
-				size -= chunksize;
-			}
-
-			efi_call_phys1(fh->close, initrds[j].handle);
-		}
-
-	}
-
-	efi_call_phys1(sys_table->boottime->free_pool, initrds);
-
-	hdr->ramdisk_image = initrd_addr;
-	hdr->ramdisk_size = initrd_total;
-
-	return status;
-
-free_initrd_total:
-	low_free(initrd_total, initrd_addr);
-
-close_handles:
-	for (k = j; k < i; k++)
-		efi_call_phys1(fh->close, initrds[k].handle);
-free_initrds:
-	efi_call_phys1(sys_table->boottime->free_pool, initrds);
-fail:
-	hdr->ramdisk_image = 0;
-	hdr->ramdisk_size = 0;
-
-	return status;
-}
 
 /*
  * Because the x86 boot code expects to be passed a boot_params we
diff --git a/arch/x86/boot/compressed/eboot.h b/arch/x86/boot/compressed/eboot.h
index 02265107cce3..81b6b652b46a 100644
--- a/arch/x86/boot/compressed/eboot.h
+++ b/arch/x86/boot/compressed/eboot.h
@@ -10,7 +10,6 @@
 #define SEG_GRANULARITY_4KB	(1 << 0)
 
 #define DESC_TYPE_CODE_DATA	(1 << 0)
-#define EFI_READ_CHUNK_SIZE	(1024 * 1024)
 
 #define EFI_CONSOLE_OUT_DEVICE_GUID    \
 	EFI_GUID(0xd3b36f2c, 0xd551, 0x11d4, 0x9a, 0x46, 0x0, 0x90, 0x27, \
diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/efi-stub-helper.c
new file mode 100644
index 000000000000..8a83387fef92
--- /dev/null
+++ b/drivers/firmware/efi/efi-stub-helper.c
@@ -0,0 +1,463 @@
+/*
+ * Helper functions used by the EFI stub on multiple
+ * architectures. This should be #included by the EFI stub
+ * implementation files.
+ *
+ * Copyright 2011 Intel Corporation; author Matt Fleming
+ *
+ * This file is part of the Linux kernel, and is made available
+ * under the terms of the GNU General Public License version 2.
+ *
+ */
+#define EFI_READ_CHUNK_SIZE	(1024 * 1024)
+
+struct initrd {
+	efi_file_handle_t *handle;
+	u64 size;
+};
+
+
+
+
+static void efi_char16_printk(efi_char16_t *str)
+{
+	struct efi_simple_text_output_protocol *out;
+
+	out = (struct efi_simple_text_output_protocol *)sys_table->con_out;
+	efi_call_phys2(out->output_string, out, str);
+}
+
+static void efi_printk(char *str)
+{
+	char *s8;
+
+	for (s8 = str; *s8; s8++) {
+		efi_char16_t ch[2] = { 0 };
+
+		ch[0] = *s8;
+		if (*s8 == '\n') {
+			efi_char16_t nl[2] = { '\r', 0 };
+			efi_char16_printk(nl);
+		}
+
+		efi_char16_printk(ch);
+	}
+}
+
+
+static efi_status_t __get_map(efi_memory_desc_t **map, unsigned long *map_size,
+			      unsigned long *desc_size)
+{
+	efi_memory_desc_t *m = NULL;
+	efi_status_t status;
+	unsigned long key;
+	u32 desc_version;
+
+	*map_size = sizeof(*m) * 32;
+again:
+	/*
+	 * Add an additional efi_memory_desc_t because we're doing an
+	 * allocation which may be in a new descriptor region.
+	 */
+	*map_size += sizeof(*m);
+	status = efi_call_phys3(sys_table->boottime->allocate_pool,
+				EFI_LOADER_DATA, *map_size, (void **)&m);
+	if (status != EFI_SUCCESS)
+		goto fail;
+
+	status = efi_call_phys5(sys_table->boottime->get_memory_map, map_size,
+				m, &key, desc_size, &desc_version);
+	if (status == EFI_BUFFER_TOO_SMALL) {
+		efi_call_phys1(sys_table->boottime->free_pool, m);
+		goto again;
+	}
+
+	if (status != EFI_SUCCESS)
+		efi_call_phys1(sys_table->boottime->free_pool, m);
+
+fail:
+	*map = m;
+	return status;
+}
+
+/*
+ * Allocate at the highest possible address that is not above 'max'.
+ */
+static efi_status_t high_alloc(unsigned long size, unsigned long align,
+			      unsigned long *addr, unsigned long max)
+{
+	unsigned long map_size, desc_size;
+	efi_memory_desc_t *map;
+	efi_status_t status;
+	unsigned long nr_pages;
+	u64 max_addr = 0;
+	int i;
+
+	status = __get_map(&map, &map_size, &desc_size);
+	if (status != EFI_SUCCESS)
+		goto fail;
+
+	nr_pages = round_up(size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
+again:
+	for (i = 0; i < map_size / desc_size; i++) {
+		efi_memory_desc_t *desc;
+		unsigned long m = (unsigned long)map;
+		u64 start, end;
+
+		desc = (efi_memory_desc_t *)(m + (i * desc_size));
+		if (desc->type != EFI_CONVENTIONAL_MEMORY)
+			continue;
+
+		if (desc->num_pages < nr_pages)
+			continue;
+
+		start = desc->phys_addr;
+		end = start + desc->num_pages * (1UL << EFI_PAGE_SHIFT);
+
+		if ((start + size) > end || (start + size) > max)
+			continue;
+
+		if (end - size > max)
+			end = max;
+
+		if (round_down(end - size, align) < start)
+			continue;
+
+		start = round_down(end - size, align);
+
+		/*
+		 * Don't allocate at 0x0. It will confuse code that
+		 * checks pointers against NULL.
+		 */
+		if (start == 0x0)
+			continue;
+
+		if (start > max_addr)
+			max_addr = start;
+	}
+
+	if (!max_addr)
+		status = EFI_NOT_FOUND;
+	else {
+		status = efi_call_phys4(sys_table->boottime->allocate_pages,
+					EFI_ALLOCATE_ADDRESS, EFI_LOADER_DATA,
+					nr_pages, &max_addr);
+		if (status != EFI_SUCCESS) {
+			max = max_addr;
+			max_addr = 0;
+			goto again;
+		}
+
+		*addr = max_addr;
+	}
+
+free_pool:
+	efi_call_phys1(sys_table->boottime->free_pool, map);
+
+fail:
+	return status;
+}
+
+/*
+ * Allocate at the lowest possible address.
+ */
+static efi_status_t low_alloc(unsigned long size, unsigned long align,
+			      unsigned long *addr)
+{
+	unsigned long map_size, desc_size;
+	efi_memory_desc_t *map;
+	efi_status_t status;
+	unsigned long nr_pages;
+	int i;
+
+	status = __get_map(&map, &map_size, &desc_size);
+	if (status != EFI_SUCCESS)
+		goto fail;
+
+	nr_pages = round_up(size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
+	for (i = 0; i < map_size / desc_size; i++) {
+		efi_memory_desc_t *desc;
+		unsigned long m = (unsigned long)map;
+		u64 start, end;
+
+		desc = (efi_memory_desc_t *)(m + (i * desc_size));
+
+		if (desc->type != EFI_CONVENTIONAL_MEMORY)
+			continue;
+
+		if (desc->num_pages < nr_pages)
+			continue;
+
+		start = desc->phys_addr;
+		end = start + desc->num_pages * (1UL << EFI_PAGE_SHIFT);
+
+		/*
+		 * Don't allocate at 0x0. It will confuse code that
+		 * checks pointers against NULL. Skip the first 8
+		 * bytes so we start at a nice even number.
+		 */
+		if (start == 0x0)
+			start += 8;
+
+		start = round_up(start, align);
+		if ((start + size) > end)
+			continue;
+
+		status = efi_call_phys4(sys_table->boottime->allocate_pages,
+					EFI_ALLOCATE_ADDRESS, EFI_LOADER_DATA,
+					nr_pages, &start);
+		if (status == EFI_SUCCESS) {
+			*addr = start;
+			break;
+		}
+	}
+
+	if (i == map_size / desc_size)
+		status = EFI_NOT_FOUND;
+
+free_pool:
+	efi_call_phys1(sys_table->boottime->free_pool, map);
+fail:
+	return status;
+}
+
+static void low_free(unsigned long size, unsigned long addr)
+{
+	unsigned long nr_pages;
+
+	nr_pages = round_up(size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
+	efi_call_phys2(sys_table->boottime->free_pages, addr, nr_pages);
+}
+
+
+/*
+ * Check the cmdline for a LILO-style initrd= arguments.
+ *
+ * We only support loading an initrd from the same filesystem as the
+ * kernel image.
+ */
+static efi_status_t handle_ramdisks(efi_loaded_image_t *image,
+				    struct setup_header *hdr)
+{
+	struct initrd *initrds;
+	unsigned long initrd_addr;
+	efi_guid_t fs_proto = EFI_FILE_SYSTEM_GUID;
+	u64 initrd_total;
+	efi_file_io_interface_t *io;
+	efi_file_handle_t *fh;
+	efi_status_t status;
+	int nr_initrds;
+	char *str;
+	int i, j, k;
+
+	initrd_addr = 0;
+	initrd_total = 0;
+
+	str = (char *)(unsigned long)hdr->cmd_line_ptr;
+
+	j = 0;			/* See close_handles */
+
+	if (!str || !*str)
+		return EFI_SUCCESS;
+
+	for (nr_initrds = 0; *str; nr_initrds++) {
+		str = strstr(str, "initrd=");
+		if (!str)
+			break;
+
+		str += 7;
+
+		/* Skip any leading slashes */
+		while (*str == '/' || *str == '\\')
+			str++;
+
+		while (*str && *str != ' ' && *str != '\n')
+			str++;
+	}
+
+	if (!nr_initrds)
+		return EFI_SUCCESS;
+
+	status = efi_call_phys3(sys_table->boottime->allocate_pool,
+				EFI_LOADER_DATA,
+				nr_initrds * sizeof(*initrds),
+				&initrds);
+	if (status != EFI_SUCCESS) {
+		efi_printk("Failed to alloc mem for initrds\n");
+		goto fail;
+	}
+
+	str = (char *)(unsigned long)hdr->cmd_line_ptr;
+	for (i = 0; i < nr_initrds; i++) {
+		struct initrd *initrd;
+		efi_file_handle_t *h;
+		efi_file_info_t *info;
+		efi_char16_t filename_16[256];
+		unsigned long info_sz;
+		efi_guid_t info_guid = EFI_FILE_INFO_ID;
+		efi_char16_t *p;
+		u64 file_sz;
+
+		str = strstr(str, "initrd=");
+		if (!str)
+			break;
+
+		str += 7;
+
+		initrd = &initrds[i];
+		p = filename_16;
+
+		/* Skip any leading slashes */
+		while (*str == '/' || *str == '\\')
+			str++;
+
+		while (*str && *str != ' ' && *str != '\n') {
+			if ((u8 *)p >= (u8 *)filename_16 + sizeof(filename_16))
+				break;
+
+			if (*str == '/') {
+				*p++ = '\\';
+				*str++;
+			} else {
+				*p++ = *str++;
+			}
+		}
+
+		*p = '\0';
+
+		/* Only open the volume once. */
+		if (!i) {
+			efi_boot_services_t *boottime;
+
+			boottime = sys_table->boottime;
+
+			status = efi_call_phys3(boottime->handle_protocol,
+					image->device_handle, &fs_proto, &io);
+			if (status != EFI_SUCCESS) {
+				efi_printk("Failed to handle fs_proto\n");
+				goto free_initrds;
+			}
+
+			status = efi_call_phys2(io->open_volume, io, &fh);
+			if (status != EFI_SUCCESS) {
+				efi_printk("Failed to open volume\n");
+				goto free_initrds;
+			}
+		}
+
+		status = efi_call_phys5(fh->open, fh, &h, filename_16,
+					EFI_FILE_MODE_READ, (u64)0);
+		if (status != EFI_SUCCESS) {
+			efi_printk("Failed to open initrd file: ");
+			efi_char16_printk(filename_16);
+			efi_printk("\n");
+			goto close_handles;
+		}
+
+		initrd->handle = h;
+
+		info_sz = 0;
+		status = efi_call_phys4(h->get_info, h, &info_guid,
+					&info_sz, NULL);
+		if (status != EFI_BUFFER_TOO_SMALL) {
+			efi_printk("Failed to get initrd info size\n");
+			goto close_handles;
+		}
+
+grow:
+		status = efi_call_phys3(sys_table->boottime->allocate_pool,
+					EFI_LOADER_DATA, info_sz, &info);
+		if (status != EFI_SUCCESS) {
+			efi_printk("Failed to alloc mem for initrd info\n");
+			goto close_handles;
+		}
+
+		status = efi_call_phys4(h->get_info, h, &info_guid,
+					&info_sz, info);
+		if (status == EFI_BUFFER_TOO_SMALL) {
+			efi_call_phys1(sys_table->boottime->free_pool, info);
+			goto grow;
+		}
+
+		file_sz = info->file_size;
+		efi_call_phys1(sys_table->boottime->free_pool, info);
+
+		if (status != EFI_SUCCESS) {
+			efi_printk("Failed to get initrd info\n");
+			goto close_handles;
+		}
+
+		initrd->size = file_sz;
+		initrd_total += file_sz;
+	}
+
+	if (initrd_total) {
+		unsigned long addr;
+
+		/*
+		 * Multiple initrd's need to be at consecutive
+		 * addresses in memory, so allocate enough memory for
+		 * all the initrd's.
+		 */
+		status = high_alloc(initrd_total, 0x1000,
+				   &initrd_addr, hdr->initrd_addr_max);
+		if (status != EFI_SUCCESS) {
+			efi_printk("Failed to alloc highmem for initrds\n");
+			goto close_handles;
+		}
+
+		/* We've run out of free low memory. */
+		if (initrd_addr > hdr->initrd_addr_max) {
+			efi_printk("We've run out of free low memory\n");
+			status = EFI_INVALID_PARAMETER;
+			goto free_initrd_total;
+		}
+
+		addr = initrd_addr;
+		for (j = 0; j < nr_initrds; j++) {
+			u64 size;
+
+			size = initrds[j].size;
+			while (size) {
+				u64 chunksize;
+				if (size > EFI_READ_CHUNK_SIZE)
+					chunksize = EFI_READ_CHUNK_SIZE;
+				else
+					chunksize = size;
+				status = efi_call_phys3(fh->read,
+							initrds[j].handle,
+							&chunksize, addr);
+				if (status != EFI_SUCCESS) {
+					efi_printk("Failed to read initrd\n");
+					goto free_initrd_total;
+				}
+				addr += chunksize;
+				size -= chunksize;
+			}
+
+			efi_call_phys1(fh->close, initrds[j].handle);
+		}
+
+	}
+
+	efi_call_phys1(sys_table->boottime->free_pool, initrds);
+
+	hdr->ramdisk_image = initrd_addr;
+	hdr->ramdisk_size = initrd_total;
+
+	return status;
+
+free_initrd_total:
+	low_free(initrd_total, initrd_addr);
+
+close_handles:
+	for (k = j; k < i; k++)
+		efi_call_phys1(fh->close, initrds[k].handle);
+free_initrds:
+	efi_call_phys1(sys_table->boottime->free_pool, initrds);
+fail:
+	hdr->ramdisk_image = 0;
+	hdr->ramdisk_size = 0;
+
+	return status;
+}
-- 
cgit 


From 876dc36aceb1682cb01426f507f369aec4f68c76 Mon Sep 17 00:00:00 2001
From: Roy Franz <roy.franz@linaro.org>
Date: Sun, 22 Sep 2013 15:45:28 -0700
Subject: efi: Add system table pointer argument to shared functions.

Add system table pointer argument to shared EFI stub related functions
so they no longer use a global system table pointer as they did when part
of eboot.c.  For the ARM EFI stub this allows us to avoid global
variables completely and thereby not have to deal with GOT fixups.
Not having the EFI stub fixup its GOT, which is shared with the
decompressor, simplifies the relocating of the zImage to a
bootable address.

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 arch/x86/boot/compressed/eboot.c       | 38 +++++++-------
 drivers/firmware/efi/efi-stub-helper.c | 96 ++++++++++++++++++----------------
 2 files changed, 72 insertions(+), 62 deletions(-)

diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index ab0eefcc5123..65b6a34f56d6 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -453,13 +453,13 @@ struct boot_params *make_boot_params(void *handle, efi_system_table_t *_table)
 	status = efi_call_phys3(sys_table->boottime->handle_protocol,
 				handle, &proto, (void *)&image);
 	if (status != EFI_SUCCESS) {
-		efi_printk("Failed to get handle for LOADED_IMAGE_PROTOCOL\n");
+		efi_printk(sys_table, "Failed to get handle for LOADED_IMAGE_PROTOCOL\n");
 		return NULL;
 	}
 
-	status = low_alloc(0x4000, 1, (unsigned long *)&boot_params);
+	status = low_alloc(sys_table, 0x4000, 1, (unsigned long *)&boot_params);
 	if (status != EFI_SUCCESS) {
-		efi_printk("Failed to alloc lowmem for boot params\n");
+		efi_printk(sys_table, "Failed to alloc lowmem for boot params\n");
 		return NULL;
 	}
 
@@ -503,9 +503,10 @@ struct boot_params *make_boot_params(void *handle, efi_system_table_t *_table)
 
 			options_size++;	/* NUL termination */
 
-			status = low_alloc(options_size, 1, &cmdline);
+			status = low_alloc(sys_table, options_size, 1,
+					   &cmdline);
 			if (status != EFI_SUCCESS) {
-				efi_printk("Failed to alloc mem for cmdline\n");
+				efi_printk(sys_table, "Failed to alloc mem for cmdline\n");
 				goto fail;
 			}
 
@@ -529,16 +530,16 @@ struct boot_params *make_boot_params(void *handle, efi_system_table_t *_table)
 
 	memset(sdt, 0, sizeof(*sdt));
 
-	status = handle_ramdisks(image, hdr);
+	status = handle_ramdisks(sys_table, image, hdr);
 	if (status != EFI_SUCCESS)
 		goto fail2;
 
 	return boot_params;
 fail2:
 	if (options_size)
-		low_free(options_size, hdr->cmd_line_ptr);
+		low_free(sys_table, options_size, hdr->cmd_line_ptr);
 fail:
-	low_free(0x4000, (unsigned long)boot_params);
+	low_free(sys_table, 0x4000, (unsigned long)boot_params);
 	return NULL;
 }
 
@@ -561,7 +562,7 @@ static efi_status_t exit_boot(struct boot_params *boot_params,
 again:
 	size += sizeof(*mem_map) * 2;
 	_size = size;
-	status = low_alloc(size, 1, (unsigned long *)&mem_map);
+	status = low_alloc(sys_table, size, 1, (unsigned long *)&mem_map);
 	if (status != EFI_SUCCESS)
 		return status;
 
@@ -569,7 +570,7 @@ get_map:
 	status = efi_call_phys5(sys_table->boottime->get_memory_map, &size,
 				mem_map, &key, &desc_size, &desc_version);
 	if (status == EFI_BUFFER_TOO_SMALL) {
-		low_free(_size, (unsigned long)mem_map);
+		low_free(sys_table, _size, (unsigned long)mem_map);
 		goto again;
 	}
 
@@ -671,7 +672,7 @@ get_map:
 	return EFI_SUCCESS;
 
 free_mem_map:
-	low_free(_size, (unsigned long)mem_map);
+	low_free(sys_table, _size, (unsigned long)mem_map);
 	return status;
 }
 
@@ -694,10 +695,10 @@ static efi_status_t relocate_kernel(struct setup_header *hdr)
 				EFI_ALLOCATE_ADDRESS, EFI_LOADER_DATA,
 				nr_pages, &start);
 	if (status != EFI_SUCCESS) {
-		status = low_alloc(hdr->init_size, hdr->kernel_alignment,
-				   &start);
+		status = low_alloc(sys_table, hdr->init_size,
+				   hdr->kernel_alignment, &start);
 		if (status != EFI_SUCCESS)
-			efi_printk("Failed to alloc mem for kernel\n");
+			efi_printk(sys_table, "Failed to alloc mem for kernel\n");
 	}
 
 	if (status == EFI_SUCCESS)
@@ -737,14 +738,15 @@ struct boot_params *efi_main(void *handle, efi_system_table_t *_table,
 				EFI_LOADER_DATA, sizeof(*gdt),
 				(void **)&gdt);
 	if (status != EFI_SUCCESS) {
-		efi_printk("Failed to alloc mem for gdt structure\n");
+		efi_printk(sys_table, "Failed to alloc mem for gdt structure\n");
 		goto fail;
 	}
 
 	gdt->size = 0x800;
-	status = low_alloc(gdt->size, 8, (unsigned long *)&gdt->address);
+	status = low_alloc(sys_table, gdt->size, 8,
+			   (unsigned long *)&gdt->address);
 	if (status != EFI_SUCCESS) {
-		efi_printk("Failed to alloc mem for gdt\n");
+		efi_printk(sys_table, "Failed to alloc mem for gdt\n");
 		goto fail;
 	}
 
@@ -752,7 +754,7 @@ struct boot_params *efi_main(void *handle, efi_system_table_t *_table,
 				EFI_LOADER_DATA, sizeof(*idt),
 				(void **)&idt);
 	if (status != EFI_SUCCESS) {
-		efi_printk("Failed to alloc mem for idt structure\n");
+		efi_printk(sys_table, "Failed to alloc mem for idt structure\n");
 		goto fail;
 	}
 
diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/efi-stub-helper.c
index 8a83387fef92..05c539e9a3c8 100644
--- a/drivers/firmware/efi/efi-stub-helper.c
+++ b/drivers/firmware/efi/efi-stub-helper.c
@@ -19,15 +19,16 @@ struct initrd {
 
 
 
-static void efi_char16_printk(efi_char16_t *str)
+static void efi_char16_printk(efi_system_table_t *sys_table_arg,
+			      efi_char16_t *str)
 {
 	struct efi_simple_text_output_protocol *out;
 
-	out = (struct efi_simple_text_output_protocol *)sys_table->con_out;
+	out = (struct efi_simple_text_output_protocol *)sys_table_arg->con_out;
 	efi_call_phys2(out->output_string, out, str);
 }
 
-static void efi_printk(char *str)
+static void efi_printk(efi_system_table_t *sys_table_arg, char *str)
 {
 	char *s8;
 
@@ -37,15 +38,17 @@ static void efi_printk(char *str)
 		ch[0] = *s8;
 		if (*s8 == '\n') {
 			efi_char16_t nl[2] = { '\r', 0 };
-			efi_char16_printk(nl);
+			efi_char16_printk(sys_table_arg, nl);
 		}
 
-		efi_char16_printk(ch);
+		efi_char16_printk(sys_table_arg, ch);
 	}
 }
 
 
-static efi_status_t __get_map(efi_memory_desc_t **map, unsigned long *map_size,
+static efi_status_t __get_map(efi_system_table_t *sys_table_arg,
+			      efi_memory_desc_t **map,
+			      unsigned long *map_size,
 			      unsigned long *desc_size)
 {
 	efi_memory_desc_t *m = NULL;
@@ -60,20 +63,20 @@ again:
 	 * allocation which may be in a new descriptor region.
 	 */
 	*map_size += sizeof(*m);
-	status = efi_call_phys3(sys_table->boottime->allocate_pool,
+	status = efi_call_phys3(sys_table_arg->boottime->allocate_pool,
 				EFI_LOADER_DATA, *map_size, (void **)&m);
 	if (status != EFI_SUCCESS)
 		goto fail;
 
-	status = efi_call_phys5(sys_table->boottime->get_memory_map, map_size,
-				m, &key, desc_size, &desc_version);
+	status = efi_call_phys5(sys_table_arg->boottime->get_memory_map,
+				map_size, m, &key, desc_size, &desc_version);
 	if (status == EFI_BUFFER_TOO_SMALL) {
-		efi_call_phys1(sys_table->boottime->free_pool, m);
+		efi_call_phys1(sys_table_arg->boottime->free_pool, m);
 		goto again;
 	}
 
 	if (status != EFI_SUCCESS)
-		efi_call_phys1(sys_table->boottime->free_pool, m);
+		efi_call_phys1(sys_table_arg->boottime->free_pool, m);
 
 fail:
 	*map = m;
@@ -83,8 +86,9 @@ fail:
 /*
  * Allocate at the highest possible address that is not above 'max'.
  */
-static efi_status_t high_alloc(unsigned long size, unsigned long align,
-			      unsigned long *addr, unsigned long max)
+static efi_status_t high_alloc(efi_system_table_t *sys_table_arg,
+			       unsigned long size, unsigned long align,
+			       unsigned long *addr, unsigned long max)
 {
 	unsigned long map_size, desc_size;
 	efi_memory_desc_t *map;
@@ -93,7 +97,7 @@ static efi_status_t high_alloc(unsigned long size, unsigned long align,
 	u64 max_addr = 0;
 	int i;
 
-	status = __get_map(&map, &map_size, &desc_size);
+	status = __get_map(sys_table_arg, &map, &map_size, &desc_size);
 	if (status != EFI_SUCCESS)
 		goto fail;
 
@@ -139,7 +143,7 @@ again:
 	if (!max_addr)
 		status = EFI_NOT_FOUND;
 	else {
-		status = efi_call_phys4(sys_table->boottime->allocate_pages,
+		status = efi_call_phys4(sys_table_arg->boottime->allocate_pages,
 					EFI_ALLOCATE_ADDRESS, EFI_LOADER_DATA,
 					nr_pages, &max_addr);
 		if (status != EFI_SUCCESS) {
@@ -152,7 +156,7 @@ again:
 	}
 
 free_pool:
-	efi_call_phys1(sys_table->boottime->free_pool, map);
+	efi_call_phys1(sys_table_arg->boottime->free_pool, map);
 
 fail:
 	return status;
@@ -161,7 +165,8 @@ fail:
 /*
  * Allocate at the lowest possible address.
  */
-static efi_status_t low_alloc(unsigned long size, unsigned long align,
+static efi_status_t low_alloc(efi_system_table_t *sys_table_arg,
+		unsigned long size, unsigned long align,
 			      unsigned long *addr)
 {
 	unsigned long map_size, desc_size;
@@ -170,7 +175,7 @@ static efi_status_t low_alloc(unsigned long size, unsigned long align,
 	unsigned long nr_pages;
 	int i;
 
-	status = __get_map(&map, &map_size, &desc_size);
+	status = __get_map(sys_table_arg, &map, &map_size, &desc_size);
 	if (status != EFI_SUCCESS)
 		goto fail;
 
@@ -203,7 +208,7 @@ static efi_status_t low_alloc(unsigned long size, unsigned long align,
 		if ((start + size) > end)
 			continue;
 
-		status = efi_call_phys4(sys_table->boottime->allocate_pages,
+		status = efi_call_phys4(sys_table_arg->boottime->allocate_pages,
 					EFI_ALLOCATE_ADDRESS, EFI_LOADER_DATA,
 					nr_pages, &start);
 		if (status == EFI_SUCCESS) {
@@ -216,17 +221,18 @@ static efi_status_t low_alloc(unsigned long size, unsigned long align,
 		status = EFI_NOT_FOUND;
 
 free_pool:
-	efi_call_phys1(sys_table->boottime->free_pool, map);
+	efi_call_phys1(sys_table_arg->boottime->free_pool, map);
 fail:
 	return status;
 }
 
-static void low_free(unsigned long size, unsigned long addr)
+static void low_free(efi_system_table_t *sys_table_arg, unsigned long size,
+		     unsigned long addr)
 {
 	unsigned long nr_pages;
 
 	nr_pages = round_up(size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
-	efi_call_phys2(sys_table->boottime->free_pages, addr, nr_pages);
+	efi_call_phys2(sys_table_arg->boottime->free_pages, addr, nr_pages);
 }
 
 
@@ -236,7 +242,8 @@ static void low_free(unsigned long size, unsigned long addr)
  * We only support loading an initrd from the same filesystem as the
  * kernel image.
  */
-static efi_status_t handle_ramdisks(efi_loaded_image_t *image,
+static efi_status_t handle_ramdisks(efi_system_table_t *sys_table_arg,
+				    efi_loaded_image_t *image,
 				    struct setup_header *hdr)
 {
 	struct initrd *initrds;
@@ -278,12 +285,12 @@ static efi_status_t handle_ramdisks(efi_loaded_image_t *image,
 	if (!nr_initrds)
 		return EFI_SUCCESS;
 
-	status = efi_call_phys3(sys_table->boottime->allocate_pool,
+	status = efi_call_phys3(sys_table_arg->boottime->allocate_pool,
 				EFI_LOADER_DATA,
 				nr_initrds * sizeof(*initrds),
 				&initrds);
 	if (status != EFI_SUCCESS) {
-		efi_printk("Failed to alloc mem for initrds\n");
+		efi_printk(sys_table_arg, "Failed to alloc mem for initrds\n");
 		goto fail;
 	}
 
@@ -329,18 +336,18 @@ static efi_status_t handle_ramdisks(efi_loaded_image_t *image,
 		if (!i) {
 			efi_boot_services_t *boottime;
 
-			boottime = sys_table->boottime;
+			boottime = sys_table_arg->boottime;
 
 			status = efi_call_phys3(boottime->handle_protocol,
 					image->device_handle, &fs_proto, &io);
 			if (status != EFI_SUCCESS) {
-				efi_printk("Failed to handle fs_proto\n");
+				efi_printk(sys_table_arg, "Failed to handle fs_proto\n");
 				goto free_initrds;
 			}
 
 			status = efi_call_phys2(io->open_volume, io, &fh);
 			if (status != EFI_SUCCESS) {
-				efi_printk("Failed to open volume\n");
+				efi_printk(sys_table_arg, "Failed to open volume\n");
 				goto free_initrds;
 			}
 		}
@@ -348,9 +355,9 @@ static efi_status_t handle_ramdisks(efi_loaded_image_t *image,
 		status = efi_call_phys5(fh->open, fh, &h, filename_16,
 					EFI_FILE_MODE_READ, (u64)0);
 		if (status != EFI_SUCCESS) {
-			efi_printk("Failed to open initrd file: ");
-			efi_char16_printk(filename_16);
-			efi_printk("\n");
+			efi_printk(sys_table_arg, "Failed to open initrd file: ");
+			efi_char16_printk(sys_table_arg, filename_16);
+			efi_printk(sys_table_arg, "\n");
 			goto close_handles;
 		}
 
@@ -360,30 +367,31 @@ static efi_status_t handle_ramdisks(efi_loaded_image_t *image,
 		status = efi_call_phys4(h->get_info, h, &info_guid,
 					&info_sz, NULL);
 		if (status != EFI_BUFFER_TOO_SMALL) {
-			efi_printk("Failed to get initrd info size\n");
+			efi_printk(sys_table_arg, "Failed to get initrd info size\n");
 			goto close_handles;
 		}
 
 grow:
-		status = efi_call_phys3(sys_table->boottime->allocate_pool,
+		status = efi_call_phys3(sys_table_arg->boottime->allocate_pool,
 					EFI_LOADER_DATA, info_sz, &info);
 		if (status != EFI_SUCCESS) {
-			efi_printk("Failed to alloc mem for initrd info\n");
+			efi_printk(sys_table_arg, "Failed to alloc mem for initrd info\n");
 			goto close_handles;
 		}
 
 		status = efi_call_phys4(h->get_info, h, &info_guid,
 					&info_sz, info);
 		if (status == EFI_BUFFER_TOO_SMALL) {
-			efi_call_phys1(sys_table->boottime->free_pool, info);
+			efi_call_phys1(sys_table_arg->boottime->free_pool,
+				       info);
 			goto grow;
 		}
 
 		file_sz = info->file_size;
-		efi_call_phys1(sys_table->boottime->free_pool, info);
+		efi_call_phys1(sys_table_arg->boottime->free_pool, info);
 
 		if (status != EFI_SUCCESS) {
-			efi_printk("Failed to get initrd info\n");
+			efi_printk(sys_table_arg, "Failed to get initrd info\n");
 			goto close_handles;
 		}
 
@@ -399,16 +407,16 @@ grow:
 		 * addresses in memory, so allocate enough memory for
 		 * all the initrd's.
 		 */
-		status = high_alloc(initrd_total, 0x1000,
+		status = high_alloc(sys_table_arg, initrd_total, 0x1000,
 				   &initrd_addr, hdr->initrd_addr_max);
 		if (status != EFI_SUCCESS) {
-			efi_printk("Failed to alloc highmem for initrds\n");
+			efi_printk(sys_table_arg, "Failed to alloc highmem for initrds\n");
 			goto close_handles;
 		}
 
 		/* We've run out of free low memory. */
 		if (initrd_addr > hdr->initrd_addr_max) {
-			efi_printk("We've run out of free low memory\n");
+			efi_printk(sys_table_arg, "We've run out of free low memory\n");
 			status = EFI_INVALID_PARAMETER;
 			goto free_initrd_total;
 		}
@@ -428,7 +436,7 @@ grow:
 							initrds[j].handle,
 							&chunksize, addr);
 				if (status != EFI_SUCCESS) {
-					efi_printk("Failed to read initrd\n");
+					efi_printk(sys_table_arg, "Failed to read initrd\n");
 					goto free_initrd_total;
 				}
 				addr += chunksize;
@@ -440,7 +448,7 @@ grow:
 
 	}
 
-	efi_call_phys1(sys_table->boottime->free_pool, initrds);
+	efi_call_phys1(sys_table_arg->boottime->free_pool, initrds);
 
 	hdr->ramdisk_image = initrd_addr;
 	hdr->ramdisk_size = initrd_total;
@@ -448,13 +456,13 @@ grow:
 	return status;
 
 free_initrd_total:
-	low_free(initrd_total, initrd_addr);
+	low_free(sys_table_arg, initrd_total, initrd_addr);
 
 close_handles:
 	for (k = j; k < i; k++)
 		efi_call_phys1(fh->close, initrds[k].handle);
 free_initrds:
-	efi_call_phys1(sys_table->boottime->free_pool, initrds);
+	efi_call_phys1(sys_table_arg->boottime->free_pool, initrds);
 fail:
 	hdr->ramdisk_image = 0;
 	hdr->ramdisk_size = 0;
-- 
cgit 


From 40e4530a00b7d52332fe9a1361388fda8e5260da Mon Sep 17 00:00:00 2001
From: Roy Franz <roy.franz@linaro.org>
Date: Sun, 22 Sep 2013 15:45:29 -0700
Subject: efi: Rename memory allocation/free functions

Rename them to be more similar, as low_free() could be used to free
memory allocated by both high_alloc() and low_alloc().
high_alloc() -> efi_high_alloc()
low_alloc()  -> efi_low_alloc()
low_free()   -> efi_free()

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Acked-by: Mark Salter <msalter@redhat.com>
Reviewed-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 arch/x86/boot/compressed/eboot.c       | 19 ++++++++++---------
 drivers/firmware/efi/efi-stub-helper.c | 14 +++++++-------
 2 files changed, 17 insertions(+), 16 deletions(-)

diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index 65b6a34f56d6..2a4430a0fb03 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -457,7 +457,8 @@ struct boot_params *make_boot_params(void *handle, efi_system_table_t *_table)
 		return NULL;
 	}
 
-	status = low_alloc(sys_table, 0x4000, 1, (unsigned long *)&boot_params);
+	status = efi_low_alloc(sys_table, 0x4000, 1,
+			       (unsigned long *)&boot_params);
 	if (status != EFI_SUCCESS) {
 		efi_printk(sys_table, "Failed to alloc lowmem for boot params\n");
 		return NULL;
@@ -503,7 +504,7 @@ struct boot_params *make_boot_params(void *handle, efi_system_table_t *_table)
 
 			options_size++;	/* NUL termination */
 
-			status = low_alloc(sys_table, options_size, 1,
+			status = efi_low_alloc(sys_table, options_size, 1,
 					   &cmdline);
 			if (status != EFI_SUCCESS) {
 				efi_printk(sys_table, "Failed to alloc mem for cmdline\n");
@@ -537,9 +538,9 @@ struct boot_params *make_boot_params(void *handle, efi_system_table_t *_table)
 	return boot_params;
 fail2:
 	if (options_size)
-		low_free(sys_table, options_size, hdr->cmd_line_ptr);
+		efi_free(sys_table, options_size, hdr->cmd_line_ptr);
 fail:
-	low_free(sys_table, 0x4000, (unsigned long)boot_params);
+	efi_free(sys_table, 0x4000, (unsigned long)boot_params);
 	return NULL;
 }
 
@@ -562,7 +563,7 @@ static efi_status_t exit_boot(struct boot_params *boot_params,
 again:
 	size += sizeof(*mem_map) * 2;
 	_size = size;
-	status = low_alloc(sys_table, size, 1, (unsigned long *)&mem_map);
+	status = efi_low_alloc(sys_table, size, 1, (unsigned long *)&mem_map);
 	if (status != EFI_SUCCESS)
 		return status;
 
@@ -570,7 +571,7 @@ get_map:
 	status = efi_call_phys5(sys_table->boottime->get_memory_map, &size,
 				mem_map, &key, &desc_size, &desc_version);
 	if (status == EFI_BUFFER_TOO_SMALL) {
-		low_free(sys_table, _size, (unsigned long)mem_map);
+		efi_free(sys_table, _size, (unsigned long)mem_map);
 		goto again;
 	}
 
@@ -672,7 +673,7 @@ get_map:
 	return EFI_SUCCESS;
 
 free_mem_map:
-	low_free(sys_table, _size, (unsigned long)mem_map);
+	efi_free(sys_table, _size, (unsigned long)mem_map);
 	return status;
 }
 
@@ -695,7 +696,7 @@ static efi_status_t relocate_kernel(struct setup_header *hdr)
 				EFI_ALLOCATE_ADDRESS, EFI_LOADER_DATA,
 				nr_pages, &start);
 	if (status != EFI_SUCCESS) {
-		status = low_alloc(sys_table, hdr->init_size,
+		status = efi_low_alloc(sys_table, hdr->init_size,
 				   hdr->kernel_alignment, &start);
 		if (status != EFI_SUCCESS)
 			efi_printk(sys_table, "Failed to alloc mem for kernel\n");
@@ -743,7 +744,7 @@ struct boot_params *efi_main(void *handle, efi_system_table_t *_table,
 	}
 
 	gdt->size = 0x800;
-	status = low_alloc(sys_table, gdt->size, 8,
+	status = efi_low_alloc(sys_table, gdt->size, 8,
 			   (unsigned long *)&gdt->address);
 	if (status != EFI_SUCCESS) {
 		efi_printk(sys_table, "Failed to alloc mem for gdt\n");
diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/efi-stub-helper.c
index 05c539e9a3c8..2f528fb541f9 100644
--- a/drivers/firmware/efi/efi-stub-helper.c
+++ b/drivers/firmware/efi/efi-stub-helper.c
@@ -86,7 +86,7 @@ fail:
 /*
  * Allocate at the highest possible address that is not above 'max'.
  */
-static efi_status_t high_alloc(efi_system_table_t *sys_table_arg,
+static efi_status_t efi_high_alloc(efi_system_table_t *sys_table_arg,
 			       unsigned long size, unsigned long align,
 			       unsigned long *addr, unsigned long max)
 {
@@ -165,8 +165,8 @@ fail:
 /*
  * Allocate at the lowest possible address.
  */
-static efi_status_t low_alloc(efi_system_table_t *sys_table_arg,
-		unsigned long size, unsigned long align,
+static efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg,
+			      unsigned long size, unsigned long align,
 			      unsigned long *addr)
 {
 	unsigned long map_size, desc_size;
@@ -226,7 +226,7 @@ fail:
 	return status;
 }
 
-static void low_free(efi_system_table_t *sys_table_arg, unsigned long size,
+static void efi_free(efi_system_table_t *sys_table_arg, unsigned long size,
 		     unsigned long addr)
 {
 	unsigned long nr_pages;
@@ -407,8 +407,8 @@ grow:
 		 * addresses in memory, so allocate enough memory for
 		 * all the initrd's.
 		 */
-		status = high_alloc(sys_table_arg, initrd_total, 0x1000,
-				   &initrd_addr, hdr->initrd_addr_max);
+		status = efi_high_alloc(sys_table_arg, initrd_total, 0x1000,
+				    &initrd_addr, hdr->initrd_addr_max);
 		if (status != EFI_SUCCESS) {
 			efi_printk(sys_table_arg, "Failed to alloc highmem for initrds\n");
 			goto close_handles;
@@ -456,7 +456,7 @@ grow:
 	return status;
 
 free_initrd_total:
-	low_free(sys_table_arg, initrd_total, initrd_addr);
+	efi_free(sys_table_arg, initrd_total, initrd_addr);
 
 close_handles:
 	for (k = j; k < i; k++)
-- 
cgit 


From 38dd9c02c3f2ed461165db22b93fae7f3ddde9ac Mon Sep 17 00:00:00 2001
From: Roy Franz <roy.franz@linaro.org>
Date: Sun, 22 Sep 2013 15:45:30 -0700
Subject: efi: Enforce minimum alignment of 1 page on allocations.

The efi_high_alloc() and efi_low_alloc() functions
use the EFI_ALLOCATE_ADDRESS option to the EFI
function allocate_pages(), which requires a minimum
of page alignment, and rejects all other requests.
The existing code could fail to allocate depending
on allocation size, as although repeated allocation
attempts were made, none were guaranteed to be page
aligned.

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Acked-by: Mark Salter <msalter@redhat.com>
Reviewed-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 drivers/firmware/efi/efi-stub-helper.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/efi-stub-helper.c
index 2f528fb541f9..a25675833598 100644
--- a/drivers/firmware/efi/efi-stub-helper.c
+++ b/drivers/firmware/efi/efi-stub-helper.c
@@ -101,6 +101,14 @@ static efi_status_t efi_high_alloc(efi_system_table_t *sys_table_arg,
 	if (status != EFI_SUCCESS)
 		goto fail;
 
+	/*
+	 * Enforce minimum alignment that EFI requires when requesting
+	 * a specific address.  We are doing page-based allocations,
+	 * so we must be aligned to a page.
+	 */
+	if (align < EFI_PAGE_SIZE)
+		align = EFI_PAGE_SIZE;
+
 	nr_pages = round_up(size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
 again:
 	for (i = 0; i < map_size / desc_size; i++) {
@@ -179,6 +187,14 @@ static efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg,
 	if (status != EFI_SUCCESS)
 		goto fail;
 
+	/*
+	 * Enforce minimum alignment that EFI requires when requesting
+	 * a specific address.  We are doing page-based allocations,
+	 * so we must be aligned to a page.
+	 */
+	if (align < EFI_PAGE_SIZE)
+		align = EFI_PAGE_SIZE;
+
 	nr_pages = round_up(size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
 	for (i = 0; i < map_size / desc_size; i++) {
 		efi_memory_desc_t *desc;
-- 
cgit 


From c6866d7238d4f26055de8db9c1d5a700e554b2d4 Mon Sep 17 00:00:00 2001
From: Roy Franz <roy.franz@linaro.org>
Date: Sun, 22 Sep 2013 15:45:31 -0700
Subject: efi: Move relocate_kernel() to shared file.

The relocate_kernel() function will be generalized and used
by all architectures, as they all have similar requirements.

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 arch/x86/boot/compressed/eboot.c       | 34 ---------------------------------
 drivers/firmware/efi/efi-stub-helper.c | 35 ++++++++++++++++++++++++++++++++++
 2 files changed, 35 insertions(+), 34 deletions(-)

diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index 2a4430a0fb03..5bbba868e2bc 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -677,40 +677,6 @@ free_mem_map:
 	return status;
 }
 
-static efi_status_t relocate_kernel(struct setup_header *hdr)
-{
-	unsigned long start, nr_pages;
-	efi_status_t status;
-
-	/*
-	 * The EFI firmware loader could have placed the kernel image
-	 * anywhere in memory, but the kernel has various restrictions
-	 * on the max physical address it can run at. Attempt to move
-	 * the kernel to boot_params.pref_address, or as low as
-	 * possible.
-	 */
-	start = hdr->pref_address;
-	nr_pages = round_up(hdr->init_size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
-
-	status = efi_call_phys4(sys_table->boottime->allocate_pages,
-				EFI_ALLOCATE_ADDRESS, EFI_LOADER_DATA,
-				nr_pages, &start);
-	if (status != EFI_SUCCESS) {
-		status = efi_low_alloc(sys_table, hdr->init_size,
-				   hdr->kernel_alignment, &start);
-		if (status != EFI_SUCCESS)
-			efi_printk(sys_table, "Failed to alloc mem for kernel\n");
-	}
-
-	if (status == EFI_SUCCESS)
-		memcpy((void *)start, (void *)(unsigned long)hdr->code32_start,
-		       hdr->init_size);
-
-	hdr->pref_address = hdr->code32_start;
-	hdr->code32_start = (__u32)start;
-
-	return status;
-}
 
 /*
  * On success we return a pointer to a boot_params structure, and NULL
diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/efi-stub-helper.c
index a25675833598..333ed9c37751 100644
--- a/drivers/firmware/efi/efi-stub-helper.c
+++ b/drivers/firmware/efi/efi-stub-helper.c
@@ -485,3 +485,38 @@ fail:
 
 	return status;
 }
+
+static efi_status_t relocate_kernel(struct setup_header *hdr)
+{
+	unsigned long start, nr_pages;
+	efi_status_t status;
+
+	/*
+	 * The EFI firmware loader could have placed the kernel image
+	 * anywhere in memory, but the kernel has various restrictions
+	 * on the max physical address it can run at. Attempt to move
+	 * the kernel to boot_params.pref_address, or as low as
+	 * possible.
+	 */
+	start = hdr->pref_address;
+	nr_pages = round_up(hdr->init_size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
+
+	status = efi_call_phys4(sys_table->boottime->allocate_pages,
+				EFI_ALLOCATE_ADDRESS, EFI_LOADER_DATA,
+				nr_pages, &start);
+	if (status != EFI_SUCCESS) {
+		status = efi_low_alloc(sys_table, hdr->init_size,
+				   hdr->kernel_alignment, &start);
+		if (status != EFI_SUCCESS)
+			efi_printk(sys_table, "Failed to alloc mem for kernel\n");
+	}
+
+	if (status == EFI_SUCCESS)
+		memcpy((void *)start, (void *)(unsigned long)hdr->code32_start,
+		       hdr->init_size);
+
+	hdr->pref_address = hdr->code32_start;
+	hdr->code32_start = (__u32)start;
+
+	return status;
+}
-- 
cgit 


From 4a9f3a7c336a6b0ffeef2523bef93e67b0921163 Mon Sep 17 00:00:00 2001
From: Roy Franz <roy.franz@linaro.org>
Date: Sun, 22 Sep 2013 15:45:32 -0700
Subject: efi: Generalize relocate_kernel() for use by other architectures.

Rename relocate_kernel() to efi_relocate_kernel(), and take
parameters rather than x86 specific structure.  Add max_addr
argument as for ARM we have some address constraints that we
need to enforce when relocating the kernel.  Add alloc_size
parameter for use by ARM64 which uses an uncompressed kernel,
and needs to allocate space for BSS.

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 arch/x86/boot/compressed/eboot.c       | 10 ++++-
 drivers/firmware/efi/efi-stub-helper.c | 76 ++++++++++++++++++++++++----------
 2 files changed, 63 insertions(+), 23 deletions(-)

diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index 5bbba868e2bc..2e997b6fbdb1 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -733,10 +733,16 @@ struct boot_params *efi_main(void *handle, efi_system_table_t *_table,
 	 * address, relocate it.
 	 */
 	if (hdr->pref_address != hdr->code32_start) {
-		status = relocate_kernel(hdr);
-
+		unsigned long bzimage_addr = hdr->code32_start;
+		status = efi_relocate_kernel(sys_table, &bzimage_addr,
+					     hdr->init_size, hdr->init_size,
+					     hdr->pref_address,
+					     hdr->kernel_alignment);
 		if (status != EFI_SUCCESS)
 			goto fail;
+
+		hdr->pref_address = hdr->code32_start;
+		hdr->code32_start = bzimage_addr;
 	}
 
 	status = exit_boot(boot_params, handle);
diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/efi-stub-helper.c
index 333ed9c37751..361e24d8d665 100644
--- a/drivers/firmware/efi/efi-stub-helper.c
+++ b/drivers/firmware/efi/efi-stub-helper.c
@@ -485,38 +485,72 @@ fail:
 
 	return status;
 }
-
-static efi_status_t relocate_kernel(struct setup_header *hdr)
+/*
+ * Relocate a kernel image, either compressed or uncompressed.
+ * In the ARM64 case, all kernel images are currently
+ * uncompressed, and as such when we relocate it we need to
+ * allocate additional space for the BSS segment. Any low
+ * memory that this function should avoid needs to be
+ * unavailable in the EFI memory map, as if the preferred
+ * address is not available the lowest available address will
+ * be used.
+ */
+static efi_status_t efi_relocate_kernel(efi_system_table_t *sys_table_arg,
+					unsigned long *image_addr,
+					unsigned long image_size,
+					unsigned long alloc_size,
+					unsigned long preferred_addr,
+					unsigned long alignment)
 {
-	unsigned long start, nr_pages;
+	unsigned long cur_image_addr;
+	unsigned long new_addr = 0;
 	efi_status_t status;
+	unsigned long nr_pages;
+	efi_physical_addr_t efi_addr = preferred_addr;
+
+	if (!image_addr || !image_size || !alloc_size)
+		return EFI_INVALID_PARAMETER;
+	if (alloc_size < image_size)
+		return EFI_INVALID_PARAMETER;
+
+	cur_image_addr = *image_addr;
 
 	/*
 	 * The EFI firmware loader could have placed the kernel image
-	 * anywhere in memory, but the kernel has various restrictions
-	 * on the max physical address it can run at. Attempt to move
-	 * the kernel to boot_params.pref_address, or as low as
-	 * possible.
+	 * anywhere in memory, but the kernel has restrictions on the
+	 * max physical address it can run at.  Some architectures
+	 * also have a prefered address, so first try to relocate
+	 * to the preferred address.  If that fails, allocate as low
+	 * as possible while respecting the required alignment.
 	 */
-	start = hdr->pref_address;
-	nr_pages = round_up(hdr->init_size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
-
-	status = efi_call_phys4(sys_table->boottime->allocate_pages,
+	nr_pages = round_up(alloc_size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
+	status = efi_call_phys4(sys_table_arg->boottime->allocate_pages,
 				EFI_ALLOCATE_ADDRESS, EFI_LOADER_DATA,
-				nr_pages, &start);
+				nr_pages, &efi_addr);
+	new_addr = efi_addr;
+	/*
+	 * If preferred address allocation failed allocate as low as
+	 * possible.
+	 */
 	if (status != EFI_SUCCESS) {
-		status = efi_low_alloc(sys_table, hdr->init_size,
-				   hdr->kernel_alignment, &start);
-		if (status != EFI_SUCCESS)
-			efi_printk(sys_table, "Failed to alloc mem for kernel\n");
+		status = efi_low_alloc(sys_table_arg, alloc_size, alignment,
+				       &new_addr);
+	}
+	if (status != EFI_SUCCESS) {
+		efi_printk(sys_table_arg, "ERROR: Failed to allocate usable memory for kernel.\n");
+		return status;
 	}
 
-	if (status == EFI_SUCCESS)
-		memcpy((void *)start, (void *)(unsigned long)hdr->code32_start,
-		       hdr->init_size);
+	/*
+	 * We know source/dest won't overlap since both memory ranges
+	 * have been allocated by UEFI, so we can safely use memcpy.
+	 */
+	memcpy((void *)new_addr, (void *)cur_image_addr, image_size);
+	/* Zero any extra space we may have allocated for BSS. */
+	memset((void *)(new_addr + image_size), alloc_size - image_size, 0);
 
-	hdr->pref_address = hdr->code32_start;
-	hdr->code32_start = (__u32)start;
+	/* Return the new address of the relocated image. */
+	*image_addr = new_addr;
 
 	return status;
 }
-- 
cgit 


From 5fef3870c572a30f9def07c4ded69dc37a9cf5d9 Mon Sep 17 00:00:00 2001
From: Roy Franz <roy.franz@linaro.org>
Date: Sun, 22 Sep 2013 15:45:33 -0700
Subject: efi: Move unicode to ASCII conversion to shared function.

Move the open-coded conversion to a shared function for
use by all architectures.  Change the allocation to prefer
a high address for ARM, as this is required to avoid conflicts
with reserved regions in low memory.  We don't know the specifics
of these regions until after we process the command line and
device tree.

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 arch/x86/boot/compressed/eboot.c       | 43 ++++--------------------
 drivers/firmware/efi/efi-stub-helper.c | 61 ++++++++++++++++++++++++++++++++++
 2 files changed, 67 insertions(+), 37 deletions(-)

diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index 2e997b6fbdb1..5e708c0d466f 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -435,11 +435,10 @@ struct boot_params *make_boot_params(void *handle, efi_system_table_t *_table)
 	struct efi_info *efi;
 	efi_loaded_image_t *image;
 	void *options;
-	u32 load_options_size;
 	efi_guid_t proto = LOADED_IMAGE_PROTOCOL_GUID;
 	int options_size = 0;
 	efi_status_t status;
-	unsigned long cmdline;
+	char *cmdline_ptr;
 	u16 *s2;
 	u8 *s1;
 	int i;
@@ -487,41 +486,11 @@ struct boot_params *make_boot_params(void *handle, efi_system_table_t *_table)
 	hdr->type_of_loader = 0x21;
 
 	/* Convert unicode cmdline to ascii */
-	options = image->load_options;
-	load_options_size = image->load_options_size / 2; /* ASCII */
-	cmdline = 0;
-	s2 = (u16 *)options;
-
-	if (s2) {
-		while (*s2 && *s2 != '\n' && options_size < load_options_size) {
-			s2++;
-			options_size++;
-		}
-
-		if (options_size) {
-			if (options_size > hdr->cmdline_size)
-				options_size = hdr->cmdline_size;
-
-			options_size++;	/* NUL termination */
-
-			status = efi_low_alloc(sys_table, options_size, 1,
-					   &cmdline);
-			if (status != EFI_SUCCESS) {
-				efi_printk(sys_table, "Failed to alloc mem for cmdline\n");
-				goto fail;
-			}
-
-			s1 = (u8 *)(unsigned long)cmdline;
-			s2 = (u16 *)options;
-
-			for (i = 0; i < options_size - 1; i++)
-				*s1++ = *s2++;
-
-			*s1 = '\0';
-		}
-	}
-
-	hdr->cmd_line_ptr = cmdline;
+	cmdline_ptr = efi_convert_cmdline_to_ascii(sys_table, image,
+						   &options_size);
+	if (!cmdline_ptr)
+		goto fail;
+	hdr->cmd_line_ptr = (unsigned long)cmdline_ptr;
 
 	hdr->ramdisk_image = 0;
 	hdr->ramdisk_size = 0;
diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/efi-stub-helper.c
index 361e24d8d665..96665b730c51 100644
--- a/drivers/firmware/efi/efi-stub-helper.c
+++ b/drivers/firmware/efi/efi-stub-helper.c
@@ -554,3 +554,64 @@ static efi_status_t efi_relocate_kernel(efi_system_table_t *sys_table_arg,
 
 	return status;
 }
+
+/*
+ * Convert the unicode UEFI command line to ASCII to pass to kernel.
+ * Size of memory allocated return in *cmd_line_len.
+ * Returns NULL on error.
+ */
+static char *efi_convert_cmdline_to_ascii(efi_system_table_t *sys_table_arg,
+				      efi_loaded_image_t *image,
+				      int *cmd_line_len)
+{
+	u16 *s2;
+	u8 *s1 = NULL;
+	unsigned long cmdline_addr = 0;
+	int load_options_size = image->load_options_size / 2; /* ASCII */
+	void *options = image->load_options;
+	int options_size = 0;
+	efi_status_t status;
+	int i;
+	u16 zero = 0;
+
+	if (options) {
+		s2 = options;
+		while (*s2 && *s2 != '\n' && options_size < load_options_size) {
+			s2++;
+			options_size++;
+		}
+	}
+
+	if (options_size == 0) {
+		/* No command line options, so return empty string*/
+		options_size = 1;
+		options = &zero;
+	}
+
+	options_size++;  /* NUL termination */
+#ifdef CONFIG_ARM
+	/*
+	 * For ARM, allocate at a high address to avoid reserved
+	 * regions at low addresses that we don't know the specfics of
+	 * at the time we are processing the command line.
+	 */
+	status = efi_high_alloc(sys_table_arg, options_size, 0,
+			    &cmdline_addr, 0xfffff000);
+#else
+	status = efi_low_alloc(sys_table_arg, options_size, 0,
+			    &cmdline_addr);
+#endif
+	if (status != EFI_SUCCESS)
+		return NULL;
+
+	s1 = (u8 *)cmdline_addr;
+	s2 = (u16 *)options;
+
+	for (i = 0; i < options_size - 1; i++)
+		*s1++ = *s2++;
+
+	*s1 = '\0';
+
+	*cmd_line_len = options_size;
+	return (char *)cmdline_addr;
+}
-- 
cgit 


From 86cc653b1955c0a47681d16457f9ee9009f2561a Mon Sep 17 00:00:00 2001
From: Roy Franz <roy.franz@linaro.org>
Date: Sun, 22 Sep 2013 15:45:35 -0700
Subject: efi: Rename __get_map() to efi_get_memory_map()

Rename function in preparation for making it more flexible
and sharing it.

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 drivers/firmware/efi/efi-stub-helper.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/efi-stub-helper.c
index 96665b730c51..561b9cf7745f 100644
--- a/drivers/firmware/efi/efi-stub-helper.c
+++ b/drivers/firmware/efi/efi-stub-helper.c
@@ -46,10 +46,10 @@ static void efi_printk(efi_system_table_t *sys_table_arg, char *str)
 }
 
 
-static efi_status_t __get_map(efi_system_table_t *sys_table_arg,
-			      efi_memory_desc_t **map,
-			      unsigned long *map_size,
-			      unsigned long *desc_size)
+static efi_status_t efi_get_memory_map(efi_system_table_t *sys_table_arg,
+				       efi_memory_desc_t **map,
+				       unsigned long *map_size,
+				       unsigned long *desc_size)
 {
 	efi_memory_desc_t *m = NULL;
 	efi_status_t status;
@@ -97,7 +97,7 @@ static efi_status_t efi_high_alloc(efi_system_table_t *sys_table_arg,
 	u64 max_addr = 0;
 	int i;
 
-	status = __get_map(sys_table_arg, &map, &map_size, &desc_size);
+	status = efi_get_memory_map(sys_table_arg, &map, &map_size, &desc_size);
 	if (status != EFI_SUCCESS)
 		goto fail;
 
@@ -183,7 +183,7 @@ static efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg,
 	unsigned long nr_pages;
 	int i;
 
-	status = __get_map(sys_table_arg, &map, &map_size, &desc_size);
+	status = efi_get_memory_map(sys_table_arg, &map, &map_size, &desc_size);
 	if (status != EFI_SUCCESS)
 		goto fail;
 
-- 
cgit 


From 1c089c65f54b70261fdcb4c238986a979c11fad7 Mon Sep 17 00:00:00 2001
From: Roy Franz <roy.franz@linaro.org>
Date: Sun, 22 Sep 2013 15:45:36 -0700
Subject: efi: generalize efi_get_memory_map()

Add arguments for returning the descriptor version and also
the memory map key.  The key is required for calling
exit_boot_services().

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 drivers/firmware/efi/efi-stub-helper.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/efi-stub-helper.c
index 561b9cf7745f..b314bf720272 100644
--- a/drivers/firmware/efi/efi-stub-helper.c
+++ b/drivers/firmware/efi/efi-stub-helper.c
@@ -49,7 +49,9 @@ static void efi_printk(efi_system_table_t *sys_table_arg, char *str)
 static efi_status_t efi_get_memory_map(efi_system_table_t *sys_table_arg,
 				       efi_memory_desc_t **map,
 				       unsigned long *map_size,
-				       unsigned long *desc_size)
+				       unsigned long *desc_size,
+				       u32 *desc_ver,
+				       unsigned long *key_ptr)
 {
 	efi_memory_desc_t *m = NULL;
 	efi_status_t status;
@@ -77,6 +79,10 @@ again:
 
 	if (status != EFI_SUCCESS)
 		efi_call_phys1(sys_table_arg->boottime->free_pool, m);
+	if (key_ptr && status == EFI_SUCCESS)
+		*key_ptr = key;
+	if (desc_ver && status == EFI_SUCCESS)
+		*desc_ver = desc_version;
 
 fail:
 	*map = m;
@@ -97,7 +103,8 @@ static efi_status_t efi_high_alloc(efi_system_table_t *sys_table_arg,
 	u64 max_addr = 0;
 	int i;
 
-	status = efi_get_memory_map(sys_table_arg, &map, &map_size, &desc_size);
+	status = efi_get_memory_map(sys_table_arg, &map, &map_size, &desc_size,
+				    NULL, NULL);
 	if (status != EFI_SUCCESS)
 		goto fail;
 
@@ -183,7 +190,8 @@ static efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg,
 	unsigned long nr_pages;
 	int i;
 
-	status = efi_get_memory_map(sys_table_arg, &map, &map_size, &desc_size);
+	status = efi_get_memory_map(sys_table_arg, &map, &map_size, &desc_size,
+				    NULL, NULL);
 	if (status != EFI_SUCCESS)
 		goto fail;
 
-- 
cgit 


From ae8e9060a3ecfd22bd5059e39f81547613ae376c Mon Sep 17 00:00:00 2001
From: Roy Franz <roy.franz@linaro.org>
Date: Sun, 22 Sep 2013 15:45:37 -0700
Subject: efi: use efi_get_memory_map() to get final map for x86

Replace the open-coded memory map getting with the
efi_get_memory_map() that is now general enough to use.

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 arch/x86/boot/compressed/eboot.c | 22 +++++-----------------
 1 file changed, 5 insertions(+), 17 deletions(-)

diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index 5e708c0d466f..bf2c35d5ec1f 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -527,25 +527,12 @@ static efi_status_t exit_boot(struct boot_params *boot_params,
 	u8 nr_entries;
 	int i;
 
-	size = sizeof(*mem_map) * 32;
-
-again:
-	size += sizeof(*mem_map) * 2;
-	_size = size;
-	status = efi_low_alloc(sys_table, size, 1, (unsigned long *)&mem_map);
-	if (status != EFI_SUCCESS)
-		return status;
-
 get_map:
-	status = efi_call_phys5(sys_table->boottime->get_memory_map, &size,
-				mem_map, &key, &desc_size, &desc_version);
-	if (status == EFI_BUFFER_TOO_SMALL) {
-		efi_free(sys_table, _size, (unsigned long)mem_map);
-		goto again;
-	}
+	status = efi_get_memory_map(sys_table, &mem_map, &size, &desc_size,
+				    &desc_version, &key);
 
 	if (status != EFI_SUCCESS)
-		goto free_mem_map;
+		return status;
 
 	memcpy(&efi->efi_loader_signature, EFI_LOADER_SIGNATURE, sizeof(__u32));
 	efi->efi_systab = (unsigned long)sys_table;
@@ -574,6 +561,7 @@ get_map:
 			goto free_mem_map;
 
 		called_exit = true;
+		efi_call_phys1(sys_table->boottime->free_pool, mem_map);
 		goto get_map;
 	}
 
@@ -642,7 +630,7 @@ get_map:
 	return EFI_SUCCESS;
 
 free_mem_map:
-	efi_free(sys_table, _size, (unsigned long)mem_map);
+	efi_call_phys1(sys_table->boottime->free_pool, mem_map);
 	return status;
 }
 
-- 
cgit 


From 0e1cadb05bba2293b4575c8cab275313d181d94f Mon Sep 17 00:00:00 2001
From: Roy Franz <roy.franz@linaro.org>
Date: Sun, 22 Sep 2013 15:45:38 -0700
Subject: efi: Allow efi_free() to be called with size of 0

Make efi_free() safely callable with size of 0, similar to free() being
callable with NULL pointers, and do nothing in that case.
Remove size checks that this makes redundant.  This also avoids some
size checks in the ARM EFI stub code that will be added as well.

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 arch/x86/boot/compressed/eboot.c       | 3 +--
 drivers/firmware/efi/efi-stub-helper.c | 3 +++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index bf2c35d5ec1f..ef2181a96d09 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -506,8 +506,7 @@ struct boot_params *make_boot_params(void *handle, efi_system_table_t *_table)
 
 	return boot_params;
 fail2:
-	if (options_size)
-		efi_free(sys_table, options_size, hdr->cmd_line_ptr);
+	efi_free(sys_table, options_size, hdr->cmd_line_ptr);
 fail:
 	efi_free(sys_table, 0x4000, (unsigned long)boot_params);
 	return NULL;
diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/efi-stub-helper.c
index b314bf720272..fda510fa3579 100644
--- a/drivers/firmware/efi/efi-stub-helper.c
+++ b/drivers/firmware/efi/efi-stub-helper.c
@@ -255,6 +255,9 @@ static void efi_free(efi_system_table_t *sys_table_arg, unsigned long size,
 {
 	unsigned long nr_pages;
 
+	if (!size)
+		return;
+
 	nr_pages = round_up(size, EFI_PAGE_SIZE) / EFI_PAGE_SIZE;
 	efi_call_phys2(sys_table_arg->boottime->free_pages, addr, nr_pages);
 }
-- 
cgit 


From 46f4582e7cbc5f30127183812d4da875782518f5 Mon Sep 17 00:00:00 2001
From: Roy Franz <roy.franz@linaro.org>
Date: Sun, 22 Sep 2013 15:45:39 -0700
Subject: efi: Generalize handle_ramdisks() and rename to
 handle_cmdline_files().

The handle_cmdline_files now takes the option to handle as a string,
and returns the loaded data through parameters, rather than taking
an x86 specific setup_header structure.  For ARM, this will be used
to load a device tree blob in addition to initrd images.

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Acked-by: Mark Salter <msalter@redhat.com>
Reviewed-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 arch/x86/boot/compressed/eboot.c       |  9 +++++-
 drivers/firmware/efi/efi-stub-helper.c | 51 ++++++++++++++++++++--------------
 2 files changed, 38 insertions(+), 22 deletions(-)

diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index ef2181a96d09..beb07a4529ac 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -442,6 +442,8 @@ struct boot_params *make_boot_params(void *handle, efi_system_table_t *_table)
 	u16 *s2;
 	u8 *s1;
 	int i;
+	unsigned long ramdisk_addr;
+	unsigned long ramdisk_size;
 
 	sys_table = _table;
 
@@ -500,9 +502,14 @@ struct boot_params *make_boot_params(void *handle, efi_system_table_t *_table)
 
 	memset(sdt, 0, sizeof(*sdt));
 
-	status = handle_ramdisks(sys_table, image, hdr);
+	status = handle_cmdline_files(sys_table, image,
+				      (char *)(unsigned long)hdr->cmd_line_ptr,
+				      "initrd=", hdr->initrd_addr_max,
+				      &ramdisk_addr, &ramdisk_size);
 	if (status != EFI_SUCCESS)
 		goto fail2;
+	hdr->ramdisk_image = ramdisk_addr;
+	hdr->ramdisk_size = ramdisk_size;
 
 	return boot_params;
 fail2:
diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/efi-stub-helper.c
index fda510fa3579..8c7839437c14 100644
--- a/drivers/firmware/efi/efi-stub-helper.c
+++ b/drivers/firmware/efi/efi-stub-helper.c
@@ -269,9 +269,12 @@ static void efi_free(efi_system_table_t *sys_table_arg, unsigned long size,
  * We only support loading an initrd from the same filesystem as the
  * kernel image.
  */
-static efi_status_t handle_ramdisks(efi_system_table_t *sys_table_arg,
-				    efi_loaded_image_t *image,
-				    struct setup_header *hdr)
+static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
+					 efi_loaded_image_t *image,
+					 char *cmd_line, char *option_string,
+					 unsigned long max_addr,
+					 unsigned long *load_addr,
+					 unsigned long *load_size)
 {
 	struct initrd *initrds;
 	unsigned long initrd_addr;
@@ -287,19 +290,25 @@ static efi_status_t handle_ramdisks(efi_system_table_t *sys_table_arg,
 	initrd_addr = 0;
 	initrd_total = 0;
 
-	str = (char *)(unsigned long)hdr->cmd_line_ptr;
+	str = cmd_line;
 
 	j = 0;			/* See close_handles */
 
+	if (!load_addr || !load_size)
+		return EFI_INVALID_PARAMETER;
+
+	*load_addr = 0;
+	*load_size = 0;
+
 	if (!str || !*str)
 		return EFI_SUCCESS;
 
 	for (nr_initrds = 0; *str; nr_initrds++) {
-		str = strstr(str, "initrd=");
+		str = strstr(str, option_string);
 		if (!str)
 			break;
 
-		str += 7;
+		str += strlen(option_string);
 
 		/* Skip any leading slashes */
 		while (*str == '/' || *str == '\\')
@@ -317,11 +326,11 @@ static efi_status_t handle_ramdisks(efi_system_table_t *sys_table_arg,
 				nr_initrds * sizeof(*initrds),
 				&initrds);
 	if (status != EFI_SUCCESS) {
-		efi_printk(sys_table_arg, "Failed to alloc mem for initrds\n");
+		efi_printk(sys_table_arg, "Failed to alloc mem for file load\n");
 		goto fail;
 	}
 
-	str = (char *)(unsigned long)hdr->cmd_line_ptr;
+	str = cmd_line;
 	for (i = 0; i < nr_initrds; i++) {
 		struct initrd *initrd;
 		efi_file_handle_t *h;
@@ -332,11 +341,11 @@ static efi_status_t handle_ramdisks(efi_system_table_t *sys_table_arg,
 		efi_char16_t *p;
 		u64 file_sz;
 
-		str = strstr(str, "initrd=");
+		str = strstr(str, option_string);
 		if (!str)
 			break;
 
-		str += 7;
+		str += strlen(option_string);
 
 		initrd = &initrds[i];
 		p = filename_16;
@@ -382,7 +391,7 @@ static efi_status_t handle_ramdisks(efi_system_table_t *sys_table_arg,
 		status = efi_call_phys5(fh->open, fh, &h, filename_16,
 					EFI_FILE_MODE_READ, (u64)0);
 		if (status != EFI_SUCCESS) {
-			efi_printk(sys_table_arg, "Failed to open initrd file: ");
+			efi_printk(sys_table_arg, "Failed to open file: ");
 			efi_char16_printk(sys_table_arg, filename_16);
 			efi_printk(sys_table_arg, "\n");
 			goto close_handles;
@@ -394,7 +403,7 @@ static efi_status_t handle_ramdisks(efi_system_table_t *sys_table_arg,
 		status = efi_call_phys4(h->get_info, h, &info_guid,
 					&info_sz, NULL);
 		if (status != EFI_BUFFER_TOO_SMALL) {
-			efi_printk(sys_table_arg, "Failed to get initrd info size\n");
+			efi_printk(sys_table_arg, "Failed to get file info size\n");
 			goto close_handles;
 		}
 
@@ -402,7 +411,7 @@ grow:
 		status = efi_call_phys3(sys_table_arg->boottime->allocate_pool,
 					EFI_LOADER_DATA, info_sz, &info);
 		if (status != EFI_SUCCESS) {
-			efi_printk(sys_table_arg, "Failed to alloc mem for initrd info\n");
+			efi_printk(sys_table_arg, "Failed to alloc mem for file info\n");
 			goto close_handles;
 		}
 
@@ -418,7 +427,7 @@ grow:
 		efi_call_phys1(sys_table_arg->boottime->free_pool, info);
 
 		if (status != EFI_SUCCESS) {
-			efi_printk(sys_table_arg, "Failed to get initrd info\n");
+			efi_printk(sys_table_arg, "Failed to get file info\n");
 			goto close_handles;
 		}
 
@@ -435,14 +444,14 @@ grow:
 		 * all the initrd's.
 		 */
 		status = efi_high_alloc(sys_table_arg, initrd_total, 0x1000,
-				    &initrd_addr, hdr->initrd_addr_max);
+				    &initrd_addr, max_addr);
 		if (status != EFI_SUCCESS) {
 			efi_printk(sys_table_arg, "Failed to alloc highmem for initrds\n");
 			goto close_handles;
 		}
 
 		/* We've run out of free low memory. */
-		if (initrd_addr > hdr->initrd_addr_max) {
+		if (initrd_addr > max_addr) {
 			efi_printk(sys_table_arg, "We've run out of free low memory\n");
 			status = EFI_INVALID_PARAMETER;
 			goto free_initrd_total;
@@ -463,7 +472,7 @@ grow:
 							initrds[j].handle,
 							&chunksize, addr);
 				if (status != EFI_SUCCESS) {
-					efi_printk(sys_table_arg, "Failed to read initrd\n");
+					efi_printk(sys_table_arg, "Failed to read file\n");
 					goto free_initrd_total;
 				}
 				addr += chunksize;
@@ -477,8 +486,8 @@ grow:
 
 	efi_call_phys1(sys_table_arg->boottime->free_pool, initrds);
 
-	hdr->ramdisk_image = initrd_addr;
-	hdr->ramdisk_size = initrd_total;
+	*load_addr = initrd_addr;
+	*load_size = initrd_total;
 
 	return status;
 
@@ -491,8 +500,8 @@ close_handles:
 free_initrds:
 	efi_call_phys1(sys_table_arg->boottime->free_pool, initrds);
 fail:
-	hdr->ramdisk_image = 0;
-	hdr->ramdisk_size = 0;
+	*load_addr = 0;
+	*load_size = 0;
 
 	return status;
 }
-- 
cgit 


From 36f8961c963683ac12282e422dfc3db806ee0c7e Mon Sep 17 00:00:00 2001
From: Roy Franz <roy.franz@linaro.org>
Date: Sun, 22 Sep 2013 15:45:40 -0700
Subject: efi: Renames in handle_cmdline_files() to complete generalization.

Rename variables to be not initrd specific, as now the function
loads arbitrary files.  This change is exclusively renames
and comment changes to reflect the generalization.

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Acked-by: Mark Salter <msalter@redhat.com>
Reviewed-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 drivers/firmware/efi/efi-stub-helper.c | 92 +++++++++++++++++-----------------
 1 file changed, 46 insertions(+), 46 deletions(-)

diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/efi-stub-helper.c
index 8c7839437c14..5cea5d5a9a1f 100644
--- a/drivers/firmware/efi/efi-stub-helper.c
+++ b/drivers/firmware/efi/efi-stub-helper.c
@@ -11,7 +11,7 @@
  */
 #define EFI_READ_CHUNK_SIZE	(1024 * 1024)
 
-struct initrd {
+struct file_info {
 	efi_file_handle_t *handle;
 	u64 size;
 };
@@ -264,10 +264,10 @@ static void efi_free(efi_system_table_t *sys_table_arg, unsigned long size,
 
 
 /*
- * Check the cmdline for a LILO-style initrd= arguments.
+ * Check the cmdline for a LILO-style file= arguments.
  *
- * We only support loading an initrd from the same filesystem as the
- * kernel image.
+ * We only support loading a file from the same filesystem as
+ * the kernel image.
  */
 static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
 					 efi_loaded_image_t *image,
@@ -276,19 +276,19 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
 					 unsigned long *load_addr,
 					 unsigned long *load_size)
 {
-	struct initrd *initrds;
-	unsigned long initrd_addr;
+	struct file_info *files;
+	unsigned long file_addr;
 	efi_guid_t fs_proto = EFI_FILE_SYSTEM_GUID;
-	u64 initrd_total;
+	u64 file_size_total;
 	efi_file_io_interface_t *io;
 	efi_file_handle_t *fh;
 	efi_status_t status;
-	int nr_initrds;
+	int nr_files;
 	char *str;
 	int i, j, k;
 
-	initrd_addr = 0;
-	initrd_total = 0;
+	file_addr = 0;
+	file_size_total = 0;
 
 	str = cmd_line;
 
@@ -303,7 +303,7 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
 	if (!str || !*str)
 		return EFI_SUCCESS;
 
-	for (nr_initrds = 0; *str; nr_initrds++) {
+	for (nr_files = 0; *str; nr_files++) {
 		str = strstr(str, option_string);
 		if (!str)
 			break;
@@ -318,21 +318,21 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
 			str++;
 	}
 
-	if (!nr_initrds)
+	if (!nr_files)
 		return EFI_SUCCESS;
 
 	status = efi_call_phys3(sys_table_arg->boottime->allocate_pool,
 				EFI_LOADER_DATA,
-				nr_initrds * sizeof(*initrds),
-				&initrds);
+				nr_files * sizeof(*files),
+				&files);
 	if (status != EFI_SUCCESS) {
-		efi_printk(sys_table_arg, "Failed to alloc mem for file load\n");
+		efi_printk(sys_table_arg, "Failed to alloc mem for file handle list\n");
 		goto fail;
 	}
 
 	str = cmd_line;
-	for (i = 0; i < nr_initrds; i++) {
-		struct initrd *initrd;
+	for (i = 0; i < nr_files; i++) {
+		struct file_info *file;
 		efi_file_handle_t *h;
 		efi_file_info_t *info;
 		efi_char16_t filename_16[256];
@@ -347,7 +347,7 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
 
 		str += strlen(option_string);
 
-		initrd = &initrds[i];
+		file = &files[i];
 		p = filename_16;
 
 		/* Skip any leading slashes */
@@ -378,13 +378,13 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
 					image->device_handle, &fs_proto, &io);
 			if (status != EFI_SUCCESS) {
 				efi_printk(sys_table_arg, "Failed to handle fs_proto\n");
-				goto free_initrds;
+				goto free_files;
 			}
 
 			status = efi_call_phys2(io->open_volume, io, &fh);
 			if (status != EFI_SUCCESS) {
 				efi_printk(sys_table_arg, "Failed to open volume\n");
-				goto free_initrds;
+				goto free_files;
 			}
 		}
 
@@ -397,7 +397,7 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
 			goto close_handles;
 		}
 
-		initrd->handle = h;
+		file->handle = h;
 
 		info_sz = 0;
 		status = efi_call_phys4(h->get_info, h, &info_guid,
@@ -431,37 +431,37 @@ grow:
 			goto close_handles;
 		}
 
-		initrd->size = file_sz;
-		initrd_total += file_sz;
+		file->size = file_sz;
+		file_size_total += file_sz;
 	}
 
-	if (initrd_total) {
+	if (file_size_total) {
 		unsigned long addr;
 
 		/*
-		 * Multiple initrd's need to be at consecutive
-		 * addresses in memory, so allocate enough memory for
-		 * all the initrd's.
+		 * Multiple files need to be at consecutive addresses in memory,
+		 * so allocate enough memory for all the files.  This is used
+		 * for loading multiple files.
 		 */
-		status = efi_high_alloc(sys_table_arg, initrd_total, 0x1000,
-				    &initrd_addr, max_addr);
+		status = efi_high_alloc(sys_table_arg, file_size_total, 0x1000,
+				    &file_addr, max_addr);
 		if (status != EFI_SUCCESS) {
-			efi_printk(sys_table_arg, "Failed to alloc highmem for initrds\n");
+			efi_printk(sys_table_arg, "Failed to alloc highmem for files\n");
 			goto close_handles;
 		}
 
 		/* We've run out of free low memory. */
-		if (initrd_addr > max_addr) {
+		if (file_addr > max_addr) {
 			efi_printk(sys_table_arg, "We've run out of free low memory\n");
 			status = EFI_INVALID_PARAMETER;
-			goto free_initrd_total;
+			goto free_file_total;
 		}
 
-		addr = initrd_addr;
-		for (j = 0; j < nr_initrds; j++) {
+		addr = file_addr;
+		for (j = 0; j < nr_files; j++) {
 			u64 size;
 
-			size = initrds[j].size;
+			size = files[j].size;
 			while (size) {
 				u64 chunksize;
 				if (size > EFI_READ_CHUNK_SIZE)
@@ -469,36 +469,36 @@ grow:
 				else
 					chunksize = size;
 				status = efi_call_phys3(fh->read,
-							initrds[j].handle,
+							files[j].handle,
 							&chunksize, addr);
 				if (status != EFI_SUCCESS) {
 					efi_printk(sys_table_arg, "Failed to read file\n");
-					goto free_initrd_total;
+					goto free_file_total;
 				}
 				addr += chunksize;
 				size -= chunksize;
 			}
 
-			efi_call_phys1(fh->close, initrds[j].handle);
+			efi_call_phys1(fh->close, files[j].handle);
 		}
 
 	}
 
-	efi_call_phys1(sys_table_arg->boottime->free_pool, initrds);
+	efi_call_phys1(sys_table_arg->boottime->free_pool, files);
 
-	*load_addr = initrd_addr;
-	*load_size = initrd_total;
+	*load_addr = file_addr;
+	*load_size = file_size_total;
 
 	return status;
 
-free_initrd_total:
-	efi_free(sys_table_arg, initrd_total, initrd_addr);
+free_file_total:
+	efi_free(sys_table_arg, file_size_total, file_addr);
 
 close_handles:
 	for (k = j; k < i; k++)
-		efi_call_phys1(fh->close, initrds[k].handle);
-free_initrds:
-	efi_call_phys1(sys_table_arg->boottime->free_pool, initrds);
+		efi_call_phys1(fh->close, files[k].handle);
+free_files:
+	efi_call_phys1(sys_table_arg->boottime->free_pool, files);
 fail:
 	*load_addr = 0;
 	*load_size = 0;
-- 
cgit 


From 6a5fe770d32811ffacefaa2a430cc067ecc7336c Mon Sep 17 00:00:00 2001
From: Roy Franz <roy.franz@linaro.org>
Date: Sun, 22 Sep 2013 15:45:41 -0700
Subject: efi: Fix types in EFI calls to match EFI function definitions.

EFI calls can made directly on ARM, so the function pointers
are directly invoked.  This allows types to be checked at
compile time, so here we ensure that the parameters match
the function signature. The wrappers used by x86 prevent
any type checking.
Correct the type of chunksize to be based on native
width as specified by the EFI_FILE_PROTOCOL read()
function.

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 drivers/firmware/efi/efi-stub-helper.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/efi-stub-helper.c
index 5cea5d5a9a1f..4252d01089b2 100644
--- a/drivers/firmware/efi/efi-stub-helper.c
+++ b/drivers/firmware/efi/efi-stub-helper.c
@@ -324,7 +324,7 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
 	status = efi_call_phys3(sys_table_arg->boottime->allocate_pool,
 				EFI_LOADER_DATA,
 				nr_files * sizeof(*files),
-				&files);
+				(void **)&files);
 	if (status != EFI_SUCCESS) {
 		efi_printk(sys_table_arg, "Failed to alloc mem for file handle list\n");
 		goto fail;
@@ -375,7 +375,8 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
 			boottime = sys_table_arg->boottime;
 
 			status = efi_call_phys3(boottime->handle_protocol,
-					image->device_handle, &fs_proto, &io);
+					image->device_handle, &fs_proto,
+						(void **)&io);
 			if (status != EFI_SUCCESS) {
 				efi_printk(sys_table_arg, "Failed to handle fs_proto\n");
 				goto free_files;
@@ -409,7 +410,8 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
 
 grow:
 		status = efi_call_phys3(sys_table_arg->boottime->allocate_pool,
-					EFI_LOADER_DATA, info_sz, &info);
+					EFI_LOADER_DATA, info_sz,
+					(void **)&info);
 		if (status != EFI_SUCCESS) {
 			efi_printk(sys_table_arg, "Failed to alloc mem for file info\n");
 			goto close_handles;
@@ -459,18 +461,19 @@ grow:
 
 		addr = file_addr;
 		for (j = 0; j < nr_files; j++) {
-			u64 size;
+			unsigned long size;
 
 			size = files[j].size;
 			while (size) {
-				u64 chunksize;
+				unsigned long chunksize;
 				if (size > EFI_READ_CHUNK_SIZE)
 					chunksize = EFI_READ_CHUNK_SIZE;
 				else
 					chunksize = size;
 				status = efi_call_phys3(fh->read,
 							files[j].handle,
-							&chunksize, addr);
+							&chunksize,
+							(void *)addr);
 				if (status != EFI_SUCCESS) {
 					efi_printk(sys_table_arg, "Failed to read file\n");
 					goto free_file_total;
-- 
cgit 


From 4e283088bd9af0ff119d6e15bca81a83d6e8e30c Mon Sep 17 00:00:00 2001
From: Roy Franz <roy.franz@linaro.org>
Date: Sun, 22 Sep 2013 15:45:42 -0700
Subject: efi: resolve warnings found on ARM compile

warnings from gcc:
warning: label 'free_pool' defined but not used [-Wunused-label]
warning: value computed is not used [-Wunused-value]

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 drivers/firmware/efi/efi-stub-helper.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/efi-stub-helper.c
index 4252d01089b2..cc0581daa9ed 100644
--- a/drivers/firmware/efi/efi-stub-helper.c
+++ b/drivers/firmware/efi/efi-stub-helper.c
@@ -170,7 +170,6 @@ again:
 		*addr = max_addr;
 	}
 
-free_pool:
 	efi_call_phys1(sys_table_arg->boottime->free_pool, map);
 
 fail:
@@ -244,7 +243,6 @@ static efi_status_t efi_low_alloc(efi_system_table_t *sys_table_arg,
 	if (i == map_size / desc_size)
 		status = EFI_NOT_FOUND;
 
-free_pool:
 	efi_call_phys1(sys_table_arg->boottime->free_pool, map);
 fail:
 	return status;
@@ -360,7 +358,7 @@ static efi_status_t handle_cmdline_files(efi_system_table_t *sys_table_arg,
 
 			if (*str == '/') {
 				*p++ = '\\';
-				*str++;
+				str++;
 			} else {
 				*p++ = *str++;
 			}
-- 
cgit 


From 4314895165623879937f46d767673654662b570c Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Sun, 22 Sep 2013 17:20:54 +0300
Subject: sched: Micro-optimize by dropping unnecessary task_rq() calls

We always know the rq used, let's just pass it around.
This seems to cut the size of scheduler core down a tiny bit:

Before:

  [linux]$ size kernel/sched/core.o.orig
     text    data     bss     dec     hex filename
    62760   16130    3876   82766   1434e kernel/sched/core.o.orig

After:

  [linux]$ size kernel/sched/core.o.patched
     text    data     bss     dec     hex filename
    62566   16130    3876   82572   1428c kernel/sched/core.o.patched

Probably speeds it up as well.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20130922142054.GA11499@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/core.c  |  6 +++---
 kernel/sched/stats.h | 46 ++++++++++++++++++++++++----------------------
 2 files changed, 27 insertions(+), 25 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index c2283c54aed0..ac5796783c49 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -767,14 +767,14 @@ static void set_load_weight(struct task_struct *p)
 static void enqueue_task(struct rq *rq, struct task_struct *p, int flags)
 {
 	update_rq_clock(rq);
-	sched_info_queued(p);
+	sched_info_queued(rq, p);
 	p->sched_class->enqueue_task(rq, p, flags);
 }
 
 static void dequeue_task(struct rq *rq, struct task_struct *p, int flags)
 {
 	update_rq_clock(rq);
-	sched_info_dequeued(p);
+	sched_info_dequeued(rq, p);
 	p->sched_class->dequeue_task(rq, p, flags);
 }
 
@@ -1839,7 +1839,7 @@ prepare_task_switch(struct rq *rq, struct task_struct *prev,
 		    struct task_struct *next)
 {
 	trace_sched_switch(prev, next);
-	sched_info_switch(prev, next);
+	sched_info_switch(rq, prev, next);
 	perf_event_task_sched_out(prev, next);
 	fire_sched_out_preempt_notifiers(prev, next);
 	prepare_lock_switch(rq, next);
diff --git a/kernel/sched/stats.h b/kernel/sched/stats.h
index c7edee71bce8..4ab704339656 100644
--- a/kernel/sched/stats.h
+++ b/kernel/sched/stats.h
@@ -59,9 +59,9 @@ static inline void sched_info_reset_dequeued(struct task_struct *t)
  * from dequeue_task() to account for possible rq->clock skew across cpus. The
  * delta taken on each cpu would annul the skew.
  */
-static inline void sched_info_dequeued(struct task_struct *t)
+static inline void sched_info_dequeued(struct rq *rq, struct task_struct *t)
 {
-	unsigned long long now = rq_clock(task_rq(t)), delta = 0;
+	unsigned long long now = rq_clock(rq), delta = 0;
 
 	if (unlikely(sched_info_on()))
 		if (t->sched_info.last_queued)
@@ -69,7 +69,7 @@ static inline void sched_info_dequeued(struct task_struct *t)
 	sched_info_reset_dequeued(t);
 	t->sched_info.run_delay += delta;
 
-	rq_sched_info_dequeued(task_rq(t), delta);
+	rq_sched_info_dequeued(rq, delta);
 }
 
 /*
@@ -77,9 +77,9 @@ static inline void sched_info_dequeued(struct task_struct *t)
  * long it was waiting to run.  We also note when it began so that we
  * can keep stats on how long its timeslice is.
  */
-static void sched_info_arrive(struct task_struct *t)
+static void sched_info_arrive(struct rq *rq, struct task_struct *t)
 {
-	unsigned long long now = rq_clock(task_rq(t)), delta = 0;
+	unsigned long long now = rq_clock(rq), delta = 0;
 
 	if (t->sched_info.last_queued)
 		delta = now - t->sched_info.last_queued;
@@ -88,7 +88,7 @@ static void sched_info_arrive(struct task_struct *t)
 	t->sched_info.last_arrival = now;
 	t->sched_info.pcount++;
 
-	rq_sched_info_arrive(task_rq(t), delta);
+	rq_sched_info_arrive(rq, delta);
 }
 
 /*
@@ -96,11 +96,11 @@ static void sched_info_arrive(struct task_struct *t)
  * the timestamp if it is already not set.  It's assumed that
  * sched_info_dequeued() will clear that stamp when appropriate.
  */
-static inline void sched_info_queued(struct task_struct *t)
+static inline void sched_info_queued(struct rq *rq, struct task_struct *t)
 {
 	if (unlikely(sched_info_on()))
 		if (!t->sched_info.last_queued)
-			t->sched_info.last_queued = rq_clock(task_rq(t));
+			t->sched_info.last_queued = rq_clock(rq);
 }
 
 /*
@@ -111,15 +111,15 @@ static inline void sched_info_queued(struct task_struct *t)
  * sched_info_queued() to mark that it has now again started waiting on
  * the runqueue.
  */
-static inline void sched_info_depart(struct task_struct *t)
+static inline void sched_info_depart(struct rq *rq, struct task_struct *t)
 {
-	unsigned long long delta = rq_clock(task_rq(t)) -
+	unsigned long long delta = rq_clock(rq) -
 					t->sched_info.last_arrival;
 
-	rq_sched_info_depart(task_rq(t), delta);
+	rq_sched_info_depart(rq, delta);
 
 	if (t->state == TASK_RUNNING)
-		sched_info_queued(t);
+		sched_info_queued(rq, t);
 }
 
 /*
@@ -128,32 +128,34 @@ static inline void sched_info_depart(struct task_struct *t)
  * the idle task.)  We are only called when prev != next.
  */
 static inline void
-__sched_info_switch(struct task_struct *prev, struct task_struct *next)
+__sched_info_switch(struct rq *rq,
+		    struct task_struct *prev, struct task_struct *next)
 {
-	struct rq *rq = task_rq(prev);
-
 	/*
 	 * prev now departs the cpu.  It's not interesting to record
 	 * stats about how efficient we were at scheduling the idle
 	 * process, however.
 	 */
 	if (prev != rq->idle)
-		sched_info_depart(prev);
+		sched_info_depart(rq, prev);
 
 	if (next != rq->idle)
-		sched_info_arrive(next);
+		sched_info_arrive(rq, next);
 }
 static inline void
-sched_info_switch(struct task_struct *prev, struct task_struct *next)
+sched_info_switch(struct rq *rq,
+		  struct task_struct *prev, struct task_struct *next)
 {
 	if (unlikely(sched_info_on()))
-		__sched_info_switch(prev, next);
+		__sched_info_switch(rq, prev, next);
 }
 #else
-#define sched_info_queued(t)			do { } while (0)
+#define sched_info_queued(rq, t)		do { } while (0)
 #define sched_info_reset_dequeued(t)	do { } while (0)
-#define sched_info_dequeued(t)			do { } while (0)
-#define sched_info_switch(t, next)		do { } while (0)
+#define sched_info_dequeued(rq, t)		do { } while (0)
+#define sched_info_depart(rq, t)		do { } while (0)
+#define sched_info_arrive(rq, next)		do { } while (0)
+#define sched_info_switch(rq, t, next)		do { } while (0)
 #endif /* CONFIG_SCHEDSTATS || CONFIG_TASK_DELAY_ACCT */
 
 /*
-- 
cgit 


From 0c44c2d0f459cd7e275242b72f500137c4fa834d Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 11 Sep 2013 15:19:24 +0200
Subject: x86: Use asm goto to implement better modify_and_test() functions

Linus suggested using asm goto to get rid of the typical SETcc + TEST
instruction pair -- which also clobbers an extra register -- for our
typical modify_and_test() functions.

Because asm goto doesn't allow output fields it has to include an
unconditinal memory clobber when it changes a memory variable to force
a reload.

Luckily all atomic ops already imply a compiler barrier to go along
with their memory barrier semantics.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-0mtn9siwbeo1d33bap1422se@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/include/asm/atomic.h      | 29 +++++----------------------
 arch/x86/include/asm/atomic64_64.h | 28 ++++----------------------
 arch/x86/include/asm/bitops.h      | 24 ++++------------------
 arch/x86/include/asm/local.h       | 28 ++++----------------------
 arch/x86/include/asm/rmwcc.h       | 41 ++++++++++++++++++++++++++++++++++++++
 5 files changed, 58 insertions(+), 92 deletions(-)
 create mode 100644 arch/x86/include/asm/rmwcc.h

diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h
index 722aa3b04624..da31c8b8a92d 100644
--- a/arch/x86/include/asm/atomic.h
+++ b/arch/x86/include/asm/atomic.h
@@ -6,6 +6,7 @@
 #include <asm/processor.h>
 #include <asm/alternative.h>
 #include <asm/cmpxchg.h>
+#include <asm/rmwcc.h>
 
 /*
  * Atomic operations that C can't guarantee us.  Useful for
@@ -76,12 +77,7 @@ static inline void atomic_sub(int i, atomic_t *v)
  */
 static inline int atomic_sub_and_test(int i, atomic_t *v)
 {
-	unsigned char c;
-
-	asm volatile(LOCK_PREFIX "subl %2,%0; sete %1"
-		     : "+m" (v->counter), "=qm" (c)
-		     : "ir" (i) : "memory");
-	return c;
+	GEN_BINARY_RMWcc(LOCK_PREFIX "subl", v->counter, i, "%0", "e");
 }
 
 /**
@@ -118,12 +114,7 @@ static inline void atomic_dec(atomic_t *v)
  */
 static inline int atomic_dec_and_test(atomic_t *v)
 {
-	unsigned char c;
-
-	asm volatile(LOCK_PREFIX "decl %0; sete %1"
-		     : "+m" (v->counter), "=qm" (c)
-		     : : "memory");
-	return c != 0;
+	GEN_UNARY_RMWcc(LOCK_PREFIX "decl", v->counter, "%0", "e");
 }
 
 /**
@@ -136,12 +127,7 @@ static inline int atomic_dec_and_test(atomic_t *v)
  */
 static inline int atomic_inc_and_test(atomic_t *v)
 {
-	unsigned char c;
-
-	asm volatile(LOCK_PREFIX "incl %0; sete %1"
-		     : "+m" (v->counter), "=qm" (c)
-		     : : "memory");
-	return c != 0;
+	GEN_UNARY_RMWcc(LOCK_PREFIX "incl", v->counter, "%0", "e");
 }
 
 /**
@@ -155,12 +141,7 @@ static inline int atomic_inc_and_test(atomic_t *v)
  */
 static inline int atomic_add_negative(int i, atomic_t *v)
 {
-	unsigned char c;
-
-	asm volatile(LOCK_PREFIX "addl %2,%0; sets %1"
-		     : "+m" (v->counter), "=qm" (c)
-		     : "ir" (i) : "memory");
-	return c;
+	GEN_BINARY_RMWcc(LOCK_PREFIX "addl", v->counter, i, "%0", "s");
 }
 
 /**
diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
index 0e1cbfc8ee06..3f065c985aee 100644
--- a/arch/x86/include/asm/atomic64_64.h
+++ b/arch/x86/include/asm/atomic64_64.h
@@ -72,12 +72,7 @@ static inline void atomic64_sub(long i, atomic64_t *v)
  */
 static inline int atomic64_sub_and_test(long i, atomic64_t *v)
 {
-	unsigned char c;
-
-	asm volatile(LOCK_PREFIX "subq %2,%0; sete %1"
-		     : "=m" (v->counter), "=qm" (c)
-		     : "er" (i), "m" (v->counter) : "memory");
-	return c;
+	GEN_BINARY_RMWcc(LOCK_PREFIX "subq", v->counter, i, "%0", "e");
 }
 
 /**
@@ -116,12 +111,7 @@ static inline void atomic64_dec(atomic64_t *v)
  */
 static inline int atomic64_dec_and_test(atomic64_t *v)
 {
-	unsigned char c;
-
-	asm volatile(LOCK_PREFIX "decq %0; sete %1"
-		     : "=m" (v->counter), "=qm" (c)
-		     : "m" (v->counter) : "memory");
-	return c != 0;
+	GEN_UNARY_RMWcc(LOCK_PREFIX "decq", v->counter, "%0", "e");
 }
 
 /**
@@ -134,12 +124,7 @@ static inline int atomic64_dec_and_test(atomic64_t *v)
  */
 static inline int atomic64_inc_and_test(atomic64_t *v)
 {
-	unsigned char c;
-
-	asm volatile(LOCK_PREFIX "incq %0; sete %1"
-		     : "=m" (v->counter), "=qm" (c)
-		     : "m" (v->counter) : "memory");
-	return c != 0;
+	GEN_UNARY_RMWcc(LOCK_PREFIX "incq", v->counter, "%0", "e");
 }
 
 /**
@@ -153,12 +138,7 @@ static inline int atomic64_inc_and_test(atomic64_t *v)
  */
 static inline int atomic64_add_negative(long i, atomic64_t *v)
 {
-	unsigned char c;
-
-	asm volatile(LOCK_PREFIX "addq %2,%0; sets %1"
-		     : "=m" (v->counter), "=qm" (c)
-		     : "er" (i), "m" (v->counter) : "memory");
-	return c;
+	GEN_BINARY_RMWcc(LOCK_PREFIX "addq", v->counter, i, "%0", "s");
 }
 
 /**
diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
index 41639ce8fd63..6d76d0935989 100644
--- a/arch/x86/include/asm/bitops.h
+++ b/arch/x86/include/asm/bitops.h
@@ -14,6 +14,7 @@
 
 #include <linux/compiler.h>
 #include <asm/alternative.h>
+#include <asm/rmwcc.h>
 
 #if BITS_PER_LONG == 32
 # define _BITOPS_LONG_SHIFT 5
@@ -204,12 +205,7 @@ static inline void change_bit(long nr, volatile unsigned long *addr)
  */
 static inline int test_and_set_bit(long nr, volatile unsigned long *addr)
 {
-	int oldbit;
-
-	asm volatile(LOCK_PREFIX "bts %2,%1\n\t"
-		     "sbb %0,%0" : "=r" (oldbit), ADDR : "Ir" (nr) : "memory");
-
-	return oldbit;
+	GEN_BINARY_RMWcc(LOCK_PREFIX "bts", *addr, nr, "%0", "c");
 }
 
 /**
@@ -255,13 +251,7 @@ static inline int __test_and_set_bit(long nr, volatile unsigned long *addr)
  */
 static inline int test_and_clear_bit(long nr, volatile unsigned long *addr)
 {
-	int oldbit;
-
-	asm volatile(LOCK_PREFIX "btr %2,%1\n\t"
-		     "sbb %0,%0"
-		     : "=r" (oldbit), ADDR : "Ir" (nr) : "memory");
-
-	return oldbit;
+	GEN_BINARY_RMWcc(LOCK_PREFIX "btr", *addr, nr, "%0", "c");
 }
 
 /**
@@ -314,13 +304,7 @@ static inline int __test_and_change_bit(long nr, volatile unsigned long *addr)
  */
 static inline int test_and_change_bit(long nr, volatile unsigned long *addr)
 {
-	int oldbit;
-
-	asm volatile(LOCK_PREFIX "btc %2,%1\n\t"
-		     "sbb %0,%0"
-		     : "=r" (oldbit), ADDR : "Ir" (nr) : "memory");
-
-	return oldbit;
+	GEN_BINARY_RMWcc(LOCK_PREFIX "btc", *addr, nr, "%0", "c");
 }
 
 static __always_inline int constant_test_bit(long nr, const volatile unsigned long *addr)
diff --git a/arch/x86/include/asm/local.h b/arch/x86/include/asm/local.h
index 2d89e3980cbd..5b23e605e707 100644
--- a/arch/x86/include/asm/local.h
+++ b/arch/x86/include/asm/local.h
@@ -52,12 +52,7 @@ static inline void local_sub(long i, local_t *l)
  */
 static inline int local_sub_and_test(long i, local_t *l)
 {
-	unsigned char c;
-
-	asm volatile(_ASM_SUB "%2,%0; sete %1"
-		     : "+m" (l->a.counter), "=qm" (c)
-		     : "ir" (i) : "memory");
-	return c;
+	GEN_BINARY_RMWcc(_ASM_SUB, l->a.counter, i, "%0", "e");
 }
 
 /**
@@ -70,12 +65,7 @@ static inline int local_sub_and_test(long i, local_t *l)
  */
 static inline int local_dec_and_test(local_t *l)
 {
-	unsigned char c;
-
-	asm volatile(_ASM_DEC "%0; sete %1"
-		     : "+m" (l->a.counter), "=qm" (c)
-		     : : "memory");
-	return c != 0;
+	GEN_UNARY_RMWcc(_ASM_DEC, l->a.counter, "%0", "e");
 }
 
 /**
@@ -88,12 +78,7 @@ static inline int local_dec_and_test(local_t *l)
  */
 static inline int local_inc_and_test(local_t *l)
 {
-	unsigned char c;
-
-	asm volatile(_ASM_INC "%0; sete %1"
-		     : "+m" (l->a.counter), "=qm" (c)
-		     : : "memory");
-	return c != 0;
+	GEN_UNARY_RMWcc(_ASM_INC, l->a.counter, "%0", "e");
 }
 
 /**
@@ -107,12 +92,7 @@ static inline int local_inc_and_test(local_t *l)
  */
 static inline int local_add_negative(long i, local_t *l)
 {
-	unsigned char c;
-
-	asm volatile(_ASM_ADD "%2,%0; sets %1"
-		     : "+m" (l->a.counter), "=qm" (c)
-		     : "ir" (i) : "memory");
-	return c;
+	GEN_BINARY_RMWcc(_ASM_ADD, l->a.counter, i, "%0", "s");
 }
 
 /**
diff --git a/arch/x86/include/asm/rmwcc.h b/arch/x86/include/asm/rmwcc.h
new file mode 100644
index 000000000000..735f1849795f
--- /dev/null
+++ b/arch/x86/include/asm/rmwcc.h
@@ -0,0 +1,41 @@
+#ifndef _ASM_X86_RMWcc
+#define _ASM_X86_RMWcc
+
+#ifdef CC_HAVE_ASM_GOTO
+
+#define __GEN_RMWcc(fullop, var, cc, ...)				\
+do {									\
+	asm volatile goto (fullop "; j" cc " %l[cc_label]"		\
+			: : "m" (var), ## __VA_ARGS__ 			\
+			: "memory" : cc_label);				\
+	return 0;							\
+cc_label:								\
+	return 1;							\
+} while (0)
+
+#define GEN_UNARY_RMWcc(op, var, arg0, cc) 				\
+	__GEN_RMWcc(op " " arg0, var, cc)
+
+#define GEN_BINARY_RMWcc(op, var, val, arg0, cc)			\
+	__GEN_RMWcc(op " %1, " arg0, var, cc, "er" (val))
+
+#else /* !CC_HAVE_ASM_GOTO */
+
+#define __GEN_RMWcc(fullop, var, cc, ...)				\
+do {									\
+	char c;								\
+	asm volatile (fullop "; set" cc " %1"				\
+			: "+m" (var), "=qm" (c)				\
+			: __VA_ARGS__ : "memory");			\
+	return c != 0;							\
+} while (0)
+
+#define GEN_UNARY_RMWcc(op, var, arg0, cc)				\
+	__GEN_RMWcc(op " " arg0, var, cc)
+
+#define GEN_BINARY_RMWcc(op, var, val, arg0, cc)			\
+	__GEN_RMWcc(op " %2, " arg0, var, cc, "er" (val))
+
+#endif /* CC_HAVE_ASM_GOTO */
+
+#endif /* _ASM_X86_RMWcc */
-- 
cgit 


From b021fe3e25094fbec22d0eff846d2adeee1b9736 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Tue, 17 Sep 2013 09:30:55 +0200
Subject: sched, rcu: Make RCU use resched_cpu()

We're going to deprecate and remove set_need_resched() for it will do
the wrong thing. Make an exception for RCU and allow it to use
resched_cpu() which will do the right thing.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/n/tip-2eywnacjl1nllctl1nszqa5w@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/rcutree.c    | 15 ++++++++++++++-
 kernel/sched/core.c | 10 ++--------
 2 files changed, 16 insertions(+), 9 deletions(-)

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 32618b3fe4e6..1dc9f3604ad8 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -898,6 +898,12 @@ static void print_other_cpu_stall(struct rcu_state *rsp)
 	force_quiescent_state(rsp);  /* Kick them all. */
 }
 
+/*
+ * This function really isn't for public consumption, but RCU is special in
+ * that context switches can allow the state machine to make progress.
+ */
+extern void resched_cpu(int cpu);
+
 static void print_cpu_stall(struct rcu_state *rsp)
 {
 	int cpu;
@@ -927,7 +933,14 @@ static void print_cpu_stall(struct rcu_state *rsp)
 				     3 * rcu_jiffies_till_stall_check() + 3;
 	raw_spin_unlock_irqrestore(&rnp->lock, flags);
 
-	set_need_resched();  /* kick ourselves to get things going. */
+	/*
+	 * Attempt to revive the RCU machinery by forcing a context switch.
+	 *
+	 * A context switch would normally allow the RCU state machine to make
+	 * progress and it could be we're stuck in kernel space without context
+	 * switches for an entirely unreasonable amount of time.
+	 */
+	resched_cpu(smp_processor_id());
 }
 
 static void check_cpu_stall(struct rcu_state *rsp, struct rcu_data *rdp)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index ac5796783c49..242da0c03aba 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -513,12 +513,11 @@ static inline void init_hrtick(void)
  * might also involve a cross-CPU call to trigger the scheduler on
  * the target CPU.
  */
-#ifdef CONFIG_SMP
 void resched_task(struct task_struct *p)
 {
 	int cpu;
 
-	assert_raw_spin_locked(&task_rq(p)->lock);
+	lockdep_assert_held(&task_rq(p)->lock);
 
 	if (test_tsk_need_resched(p))
 		return;
@@ -546,6 +545,7 @@ void resched_cpu(int cpu)
 	raw_spin_unlock_irqrestore(&rq->lock, flags);
 }
 
+#ifdef CONFIG_SMP
 #ifdef CONFIG_NO_HZ_COMMON
 /*
  * In the semi idle case, use the nearest busy cpu for migrating timers
@@ -693,12 +693,6 @@ void sched_avg_update(struct rq *rq)
 	}
 }
 
-#else /* !CONFIG_SMP */
-void resched_task(struct task_struct *p)
-{
-	assert_raw_spin_locked(&task_rq(p)->lock);
-	set_tsk_need_resched(p);
-}
 #endif /* CONFIG_SMP */
 
 #if defined(CONFIG_RT_GROUP_SCHED) || (defined(CONFIG_FAIR_GROUP_SCHED) && \
-- 
cgit 


From 3150398626466c6cc626732f60bc901d58f40677 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 12 Sep 2013 15:10:31 +0200
Subject: sched: Remove {set,clear}_need_resched

Preemption semantics are going to change which mandate a change.

All DRM usage sites are already broken and will not be affected (much)
by this change. DRM people are aware and will remove the last few
stragglers.

For now, leave an empty stub that generates a warning, once all users
are gone we can remove this.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: airlied@linux.ie
Cc: daniel.vetter@ffwll.ch
Cc: paulmck@linux.vnet.ibm.com
Link: http://lkml.kernel.org/n/tip-qfc1el2zvhxiyut4ai99ij4n@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/thread_info.h | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
index e7e04736802f..a629e4b23217 100644
--- a/include/linux/thread_info.h
+++ b/include/linux/thread_info.h
@@ -104,8 +104,19 @@ static inline int test_ti_thread_flag(struct thread_info *ti, int flag)
 #define test_thread_flag(flag) \
 	test_ti_thread_flag(current_thread_info(), flag)
 
-#define set_need_resched()	set_thread_flag(TIF_NEED_RESCHED)
-#define clear_need_resched()	clear_thread_flag(TIF_NEED_RESCHED)
+static inline __deprecated void set_need_resched(void)
+{
+	/*
+	 * Use of this function in deprecated.
+	 *
+	 * As of this writing there are only a few users in the DRM tree left
+	 * all of which are wrong and can be removed without causing too much
+	 * grief.
+	 *
+	 * The DRM people are aware and are working on removing the last few
+	 * instances.
+	 */
+}
 
 #if defined TIF_RESTORE_SIGMASK && !defined HAVE_SET_RESTORE_SIGMASK
 /*
-- 
cgit 


From ea8117478918a4734586d35ff530721b682425be Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 11 Sep 2013 12:43:13 +0200
Subject: sched, idle: Fix the idle polling state logic

Mike reported that commit 7d1a9417 ("x86: Use generic idle loop")
regressed several workloads and caused excessive reschedule
interrupts.

The patch in question failed to notice that the x86 code had an
inverted sense of the polling state versus the new generic code (x86:
default polling, generic: default !polling).

Fix the two prominent x86 mwait based idle drivers and introduce a few
new generic polling helpers (fixing the wrong smp_mb__after_clear_bit
usage).

Also switch the idle routines to using tif_need_resched() which is an
immediate TIF_NEED_RESCHED test as opposed to need_resched which will
end up being slightly different.

Reported-by: Mike Galbraith <bitbucket@online.de>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: lenb@kernel.org
Cc: tglx@linutronix.de
Link: http://lkml.kernel.org/n/tip-nc03imb0etuefmzybzj7sprf@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/process.c     |  6 ++--
 drivers/acpi/processor_idle.c | 46 ++++++-------------------
 drivers/idle/intel_idle.c     |  2 +-
 include/linux/sched.h         | 78 +++++++++++++++++++++++++++++++++++++++----
 include/linux/thread_info.h   |  2 ++
 kernel/cpu/idle.c             |  9 +++--
 6 files changed, 91 insertions(+), 52 deletions(-)

diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index c83516be1052..3fb8d95ab8b5 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -391,9 +391,9 @@ static void amd_e400_idle(void)
 		 * The switch back from broadcast mode needs to be
 		 * called with interrupts disabled.
 		 */
-		 local_irq_disable();
-		 clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu);
-		 local_irq_enable();
+		local_irq_disable();
+		clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu);
+		local_irq_enable();
 	} else
 		default_idle();
 }
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index f98dd00b51a9..c7414a545a4f 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -119,17 +119,10 @@ static struct dmi_system_id processor_power_dmi_table[] = {
  */
 static void acpi_safe_halt(void)
 {
-	current_thread_info()->status &= ~TS_POLLING;
-	/*
-	 * TS_POLLING-cleared state must be visible before we
-	 * test NEED_RESCHED:
-	 */
-	smp_mb();
-	if (!need_resched()) {
+	if (!tif_need_resched()) {
 		safe_halt();
 		local_irq_disable();
 	}
-	current_thread_info()->status |= TS_POLLING;
 }
 
 #ifdef ARCH_APICTIMER_STOPS_ON_C3
@@ -737,6 +730,11 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev,
 	if (unlikely(!pr))
 		return -EINVAL;
 
+	if (cx->entry_method == ACPI_CSTATE_FFH) {
+		if (current_set_polling_and_test())
+			return -EINVAL;
+	}
+
 	lapic_timer_state_broadcast(pr, cx, 1);
 	acpi_idle_do_entry(cx);
 
@@ -790,18 +788,9 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
 	if (unlikely(!pr))
 		return -EINVAL;
 
-	if (cx->entry_method != ACPI_CSTATE_FFH) {
-		current_thread_info()->status &= ~TS_POLLING;
-		/*
-		 * TS_POLLING-cleared state must be visible before we test
-		 * NEED_RESCHED:
-		 */
-		smp_mb();
-
-		if (unlikely(need_resched())) {
-			current_thread_info()->status |= TS_POLLING;
+	if (cx->entry_method == ACPI_CSTATE_FFH) {
+		if (current_set_polling_and_test())
 			return -EINVAL;
-		}
 	}
 
 	/*
@@ -819,9 +808,6 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
 
 	sched_clock_idle_wakeup_event(0);
 
-	if (cx->entry_method != ACPI_CSTATE_FFH)
-		current_thread_info()->status |= TS_POLLING;
-
 	lapic_timer_state_broadcast(pr, cx, 0);
 	return index;
 }
@@ -858,18 +844,9 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
 		}
 	}
 
-	if (cx->entry_method != ACPI_CSTATE_FFH) {
-		current_thread_info()->status &= ~TS_POLLING;
-		/*
-		 * TS_POLLING-cleared state must be visible before we test
-		 * NEED_RESCHED:
-		 */
-		smp_mb();
-
-		if (unlikely(need_resched())) {
-			current_thread_info()->status |= TS_POLLING;
+	if (cx->entry_method == ACPI_CSTATE_FFH) {
+		if (current_set_polling_and_test())
 			return -EINVAL;
-		}
 	}
 
 	acpi_unlazy_tlb(smp_processor_id());
@@ -915,9 +892,6 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
 
 	sched_clock_idle_wakeup_event(0);
 
-	if (cx->entry_method != ACPI_CSTATE_FFH)
-		current_thread_info()->status |= TS_POLLING;
-
 	lapic_timer_state_broadcast(pr, cx, 0);
 	return index;
 }
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index fa6964d8681a..f116d664b473 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -359,7 +359,7 @@ static int intel_idle(struct cpuidle_device *dev,
 	if (!(lapic_timer_reliable_states & (1 << (cstate))))
 		clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu);
 
-	if (!need_resched()) {
+	if (!current_set_polling_and_test()) {
 
 		__monitor((void *)&current_thread_info()->flags, 0, 0);
 		smp_mb();
diff --git a/include/linux/sched.h b/include/linux/sched.h
index b5344de1658b..e783ec52295a 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2479,34 +2479,98 @@ static inline int tsk_is_polling(struct task_struct *p)
 {
 	return task_thread_info(p)->status & TS_POLLING;
 }
-static inline void current_set_polling(void)
+static inline void __current_set_polling(void)
 {
 	current_thread_info()->status |= TS_POLLING;
 }
 
-static inline void current_clr_polling(void)
+static inline bool __must_check current_set_polling_and_test(void)
+{
+	__current_set_polling();
+
+	/*
+	 * Polling state must be visible before we test NEED_RESCHED,
+	 * paired by resched_task()
+	 */
+	smp_mb();
+
+	return unlikely(tif_need_resched());
+}
+
+static inline void __current_clr_polling(void)
 {
 	current_thread_info()->status &= ~TS_POLLING;
-	smp_mb__after_clear_bit();
+}
+
+static inline bool __must_check current_clr_polling_and_test(void)
+{
+	__current_clr_polling();
+
+	/*
+	 * Polling state must be visible before we test NEED_RESCHED,
+	 * paired by resched_task()
+	 */
+	smp_mb();
+
+	return unlikely(tif_need_resched());
 }
 #elif defined(TIF_POLLING_NRFLAG)
 static inline int tsk_is_polling(struct task_struct *p)
 {
 	return test_tsk_thread_flag(p, TIF_POLLING_NRFLAG);
 }
-static inline void current_set_polling(void)
+
+static inline void __current_set_polling(void)
 {
 	set_thread_flag(TIF_POLLING_NRFLAG);
 }
 
-static inline void current_clr_polling(void)
+static inline bool __must_check current_set_polling_and_test(void)
+{
+	__current_set_polling();
+
+	/*
+	 * Polling state must be visible before we test NEED_RESCHED,
+	 * paired by resched_task()
+	 *
+	 * XXX: assumes set/clear bit are identical barrier wise.
+	 */
+	smp_mb__after_clear_bit();
+
+	return unlikely(tif_need_resched());
+}
+
+static inline void __current_clr_polling(void)
 {
 	clear_thread_flag(TIF_POLLING_NRFLAG);
 }
+
+static inline bool __must_check current_clr_polling_and_test(void)
+{
+	__current_clr_polling();
+
+	/*
+	 * Polling state must be visible before we test NEED_RESCHED,
+	 * paired by resched_task()
+	 */
+	smp_mb__after_clear_bit();
+
+	return unlikely(tif_need_resched());
+}
+
 #else
 static inline int tsk_is_polling(struct task_struct *p) { return 0; }
-static inline void current_set_polling(void) { }
-static inline void current_clr_polling(void) { }
+static inline void __current_set_polling(void) { }
+static inline void __current_clr_polling(void) { }
+
+static inline bool __must_check current_set_polling_and_test(void)
+{
+	return unlikely(tif_need_resched());
+}
+static inline bool __must_check current_clr_polling_and_test(void)
+{
+	return unlikely(tif_need_resched());
+}
 #endif
 
 /*
diff --git a/include/linux/thread_info.h b/include/linux/thread_info.h
index a629e4b23217..fddbe2023a5d 100644
--- a/include/linux/thread_info.h
+++ b/include/linux/thread_info.h
@@ -118,6 +118,8 @@ static inline __deprecated void set_need_resched(void)
 	 */
 }
 
+#define tif_need_resched() test_thread_flag(TIF_NEED_RESCHED)
+
 #if defined TIF_RESTORE_SIGMASK && !defined HAVE_SET_RESTORE_SIGMASK
 /*
  * An arch can define its own version of set_restore_sigmask() to get the
diff --git a/kernel/cpu/idle.c b/kernel/cpu/idle.c
index e695c0a0bcb5..c261409500e4 100644
--- a/kernel/cpu/idle.c
+++ b/kernel/cpu/idle.c
@@ -44,7 +44,7 @@ static inline int cpu_idle_poll(void)
 	rcu_idle_enter();
 	trace_cpu_idle_rcuidle(0, smp_processor_id());
 	local_irq_enable();
-	while (!need_resched())
+	while (!tif_need_resched())
 		cpu_relax();
 	trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, smp_processor_id());
 	rcu_idle_exit();
@@ -92,8 +92,7 @@ static void cpu_idle_loop(void)
 			if (cpu_idle_force_poll || tick_check_broadcast_expired()) {
 				cpu_idle_poll();
 			} else {
-				current_clr_polling();
-				if (!need_resched()) {
+				if (!current_clr_polling_and_test()) {
 					stop_critical_timings();
 					rcu_idle_enter();
 					arch_cpu_idle();
@@ -103,7 +102,7 @@ static void cpu_idle_loop(void)
 				} else {
 					local_irq_enable();
 				}
-				current_set_polling();
+				__current_set_polling();
 			}
 			arch_cpu_idle_exit();
 		}
@@ -129,7 +128,7 @@ void cpu_startup_entry(enum cpuhp_state state)
 	 */
 	boot_init_stack_canary();
 #endif
-	current_set_polling();
+	__current_set_polling();
 	arch_cpu_idle_prepare();
 	cpu_idle_loop();
 }
-- 
cgit 


From 4a2b4b222743bb07fedf985b884550f2ca067ea9 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 14 Aug 2013 14:55:24 +0200
Subject: sched: Introduce preempt_count accessor functions

Replace the single preempt_count() 'function' that's an lvalue with
two proper functions:

 preempt_count() - returns the preempt_count value as rvalue
 preempt_count_set() - Allows setting the preempt-count value

Also provide preempt_count_ptr() as a convenience wrapper to implement
all modifying operations.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-orxrbycjozopqfhb4dxdkdvb@git.kernel.org
[ Fixed build failure. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/preempt.h | 25 +++++++++++++++++++------
 init/main.c             |  2 +-
 kernel/sched/core.c     |  4 ++--
 kernel/softirq.c        |  4 ++--
 kernel/timer.c          |  8 ++++----
 lib/locking-selftest.c  |  2 +-
 lib/smp_processor_id.c  |  3 +--
 7 files changed, 30 insertions(+), 18 deletions(-)

diff --git a/include/linux/preempt.h b/include/linux/preempt.h
index f5d4723cdb3d..eaac52a8fe6a 100644
--- a/include/linux/preempt.h
+++ b/include/linux/preempt.h
@@ -10,19 +10,32 @@
 #include <linux/linkage.h>
 #include <linux/list.h>
 
+static __always_inline int preempt_count(void)
+{
+	return current_thread_info()->preempt_count;
+}
+
+static __always_inline int *preempt_count_ptr(void)
+{
+	return &current_thread_info()->preempt_count;
+}
+
+static __always_inline void preempt_count_set(int pc)
+{
+	*preempt_count_ptr() = pc;
+}
+
 #if defined(CONFIG_DEBUG_PREEMPT) || defined(CONFIG_PREEMPT_TRACER)
   extern void add_preempt_count(int val);
   extern void sub_preempt_count(int val);
 #else
-# define add_preempt_count(val)	do { preempt_count() += (val); } while (0)
-# define sub_preempt_count(val)	do { preempt_count() -= (val); } while (0)
+# define add_preempt_count(val)	do { *preempt_count_ptr() += (val); } while (0)
+# define sub_preempt_count(val)	do { *preempt_count_ptr() -= (val); } while (0)
 #endif
 
 #define inc_preempt_count() add_preempt_count(1)
 #define dec_preempt_count() sub_preempt_count(1)
 
-#define preempt_count()	(current_thread_info()->preempt_count)
-
 #ifdef CONFIG_PREEMPT
 
 asmlinkage void preempt_schedule(void);
@@ -81,9 +94,9 @@ do { \
 
 /* For debugging and tracer internals only! */
 #define add_preempt_count_notrace(val)			\
-	do { preempt_count() += (val); } while (0)
+	do { *preempt_count_ptr() += (val); } while (0)
 #define sub_preempt_count_notrace(val)			\
-	do { preempt_count() -= (val); } while (0)
+	do { *preempt_count_ptr() -= (val); } while (0)
 #define inc_preempt_count_notrace() add_preempt_count_notrace(1)
 #define dec_preempt_count_notrace() sub_preempt_count_notrace(1)
 
diff --git a/init/main.c b/init/main.c
index af310afbef28..7cc4b7889a88 100644
--- a/init/main.c
+++ b/init/main.c
@@ -692,7 +692,7 @@ int __init_or_module do_one_initcall(initcall_t fn)
 
 	if (preempt_count() != count) {
 		sprintf(msgbuf, "preemption imbalance ");
-		preempt_count() = count;
+		preempt_count_set(count);
 	}
 	if (irqs_disabled()) {
 		strlcat(msgbuf, "disabled interrupts ", sizeof(msgbuf));
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 242da0c03aba..fe89afac4d09 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2219,7 +2219,7 @@ void __kprobes add_preempt_count(int val)
 	if (DEBUG_LOCKS_WARN_ON((preempt_count() < 0)))
 		return;
 #endif
-	preempt_count() += val;
+	add_preempt_count_notrace(val);
 #ifdef CONFIG_DEBUG_PREEMPT
 	/*
 	 * Spinlock count overflowing soon?
@@ -2250,7 +2250,7 @@ void __kprobes sub_preempt_count(int val)
 
 	if (preempt_count() == val)
 		trace_preempt_on(CALLER_ADDR0, get_parent_ip(CALLER_ADDR1));
-	preempt_count() -= val;
+	sub_preempt_count_notrace(val);
 }
 EXPORT_SYMBOL(sub_preempt_count);
 
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 53cc09ceb0b8..a90de70cf1f3 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -106,7 +106,7 @@ static void __local_bh_disable(unsigned long ip, unsigned int cnt)
 	 * We must manually increment preempt_count here and manually
 	 * call the trace_preempt_off later.
 	 */
-	preempt_count() += cnt;
+	add_preempt_count_notrace(cnt);
 	/*
 	 * Were softirqs turned off above:
 	 */
@@ -256,7 +256,7 @@ restart:
 				       " exited with %08x?\n", vec_nr,
 				       softirq_to_name[vec_nr], h->action,
 				       prev_count, preempt_count());
-				preempt_count() = prev_count;
+				preempt_count_set(prev_count);
 			}
 
 			rcu_bh_qs(cpu);
diff --git a/kernel/timer.c b/kernel/timer.c
index 4296d13db3d1..6582b82fa966 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1092,7 +1092,7 @@ static int cascade(struct tvec_base *base, struct tvec *tv, int index)
 static void call_timer_fn(struct timer_list *timer, void (*fn)(unsigned long),
 			  unsigned long data)
 {
-	int preempt_count = preempt_count();
+	int count = preempt_count();
 
 #ifdef CONFIG_LOCKDEP
 	/*
@@ -1119,16 +1119,16 @@ static void call_timer_fn(struct timer_list *timer, void (*fn)(unsigned long),
 
 	lock_map_release(&lockdep_map);
 
-	if (preempt_count != preempt_count()) {
+	if (count != preempt_count()) {
 		WARN_ONCE(1, "timer: %pF preempt leak: %08x -> %08x\n",
-			  fn, preempt_count, preempt_count());
+			  fn, count, preempt_count());
 		/*
 		 * Restore the preempt count. That gives us a decent
 		 * chance to survive and extract information. If the
 		 * callback kept a lock held, bad luck, but not worse
 		 * than the BUG() we had.
 		 */
-		preempt_count() = preempt_count;
+		preempt_count_set(count);
 	}
 }
 
diff --git a/lib/locking-selftest.c b/lib/locking-selftest.c
index 6dc09d8f4c24..872a15a2a637 100644
--- a/lib/locking-selftest.c
+++ b/lib/locking-selftest.c
@@ -1002,7 +1002,7 @@ static void dotest(void (*testcase_fn)(void), int expected, int lockclass_mask)
 	 * Some tests (e.g. double-unlock) might corrupt the preemption
 	 * count, so restore it:
 	 */
-	preempt_count() = saved_preempt_count;
+	preempt_count_set(saved_preempt_count);
 #ifdef CONFIG_TRACE_IRQFLAGS
 	if (softirq_count())
 		current->softirqs_enabled = 0;
diff --git a/lib/smp_processor_id.c b/lib/smp_processor_id.c
index 4c0d0e51d49e..04abe53f12a1 100644
--- a/lib/smp_processor_id.c
+++ b/lib/smp_processor_id.c
@@ -9,10 +9,9 @@
 
 notrace unsigned int debug_smp_processor_id(void)
 {
-	unsigned long preempt_count = preempt_count();
 	int this_cpu = raw_smp_processor_id();
 
-	if (likely(preempt_count))
+	if (likely(preempt_count()))
 		goto out;
 
 	if (irqs_disabled())
-- 
cgit 


From f27dde8deef33c9e58027df11ceab2198601d6a6 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 14 Aug 2013 14:55:31 +0200
Subject: sched: Add NEED_RESCHED to the preempt_count

In order to combine the preemption and need_resched test we need to
fold the need_resched information into the preempt_count value.

Since the NEED_RESCHED flag is set across CPUs this needs to be an
atomic operation, however we very much want to avoid making
preempt_count atomic, therefore we keep the existing TIF_NEED_RESCHED
infrastructure in place but at 3 sites test it and fold its value into
preempt_count; namely:

 - resched_task() when setting TIF_NEED_RESCHED on the current task
 - scheduler_ipi() when resched_task() sets TIF_NEED_RESCHED on a
                   remote task it follows it up with a reschedule IPI
                   and we can modify the cpu local preempt_count from
                   there.
 - cpu_idle_loop() for when resched_task() found tsk_is_polling().

We use an inverted bitmask to indicate need_resched so that a 0 means
both need_resched and !atomic.

Also remove the barrier() in preempt_enable() between
preempt_enable_no_resched() and preempt_check_resched() to avoid
having to reload the preemption value and allow the compiler to use
the flags of the previuos decrement. I couldn't come up with any sane
reason for this barrier() to be there as preempt_enable_no_resched()
already has a barrier() before doing the decrement.

Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-7a7m5qqbn5pmwnd4wko9u6da@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/preempt.h | 47 ++++++++++++++++++++++++++++++++++++++++++-----
 include/linux/sched.h   |  7 +++++--
 kernel/cpu/idle.c       |  7 +++++++
 kernel/sched/core.c     | 20 +++++++++++++++-----
 4 files changed, 69 insertions(+), 12 deletions(-)

diff --git a/include/linux/preempt.h b/include/linux/preempt.h
index eaac52a8fe6a..92e341853e4b 100644
--- a/include/linux/preempt.h
+++ b/include/linux/preempt.h
@@ -10,9 +10,19 @@
 #include <linux/linkage.h>
 #include <linux/list.h>
 
+/*
+ * We use the MSB mostly because its available; see <linux/preempt_mask.h> for
+ * the other bits -- can't include that header due to inclusion hell.
+ */
+#define PREEMPT_NEED_RESCHED	0x80000000
+
+/*
+ * We mask the PREEMPT_NEED_RESCHED bit so as not to confuse all current users
+ * that think a non-zero value indicates we cannot preempt.
+ */
 static __always_inline int preempt_count(void)
 {
-	return current_thread_info()->preempt_count;
+	return current_thread_info()->preempt_count & ~PREEMPT_NEED_RESCHED;
 }
 
 static __always_inline int *preempt_count_ptr(void)
@@ -20,11 +30,40 @@ static __always_inline int *preempt_count_ptr(void)
 	return &current_thread_info()->preempt_count;
 }
 
+/*
+ * We now loose PREEMPT_NEED_RESCHED and cause an extra reschedule; however the
+ * alternative is loosing a reschedule. Better schedule too often -- also this
+ * should be a very rare operation.
+ */
 static __always_inline void preempt_count_set(int pc)
 {
 	*preempt_count_ptr() = pc;
 }
 
+/*
+ * We fold the NEED_RESCHED bit into the preempt count such that
+ * preempt_enable() can decrement and test for needing to reschedule with a
+ * single instruction.
+ *
+ * We invert the actual bit, so that when the decrement hits 0 we know we both
+ * need to resched (the bit is cleared) and can resched (no preempt count).
+ */
+
+static __always_inline void set_preempt_need_resched(void)
+{
+	*preempt_count_ptr() &= ~PREEMPT_NEED_RESCHED;
+}
+
+static __always_inline void clear_preempt_need_resched(void)
+{
+	*preempt_count_ptr() |= PREEMPT_NEED_RESCHED;
+}
+
+static __always_inline bool test_preempt_need_resched(void)
+{
+	return !(*preempt_count_ptr() & PREEMPT_NEED_RESCHED);
+}
+
 #if defined(CONFIG_DEBUG_PREEMPT) || defined(CONFIG_PREEMPT_TRACER)
   extern void add_preempt_count(int val);
   extern void sub_preempt_count(int val);
@@ -42,7 +81,7 @@ asmlinkage void preempt_schedule(void);
 
 #define preempt_check_resched() \
 do { \
-	if (unlikely(test_thread_flag(TIF_NEED_RESCHED))) \
+	if (unlikely(!*preempt_count_ptr())) \
 		preempt_schedule(); \
 } while (0)
 
@@ -52,7 +91,7 @@ void preempt_schedule_context(void);
 
 #define preempt_check_resched_context() \
 do { \
-	if (unlikely(test_thread_flag(TIF_NEED_RESCHED))) \
+	if (unlikely(!*preempt_count_ptr())) \
 		preempt_schedule_context(); \
 } while (0)
 #else
@@ -88,7 +127,6 @@ do { \
 #define preempt_enable() \
 do { \
 	preempt_enable_no_resched(); \
-	barrier(); \
 	preempt_check_resched(); \
 } while (0)
 
@@ -116,7 +154,6 @@ do { \
 #define preempt_enable_notrace() \
 do { \
 	preempt_enable_no_resched_notrace(); \
-	barrier(); \
 	preempt_check_resched_context(); \
 } while (0)
 
diff --git a/include/linux/sched.h b/include/linux/sched.h
index e783ec52295a..9fa151fb968e 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -22,6 +22,7 @@ struct sched_param {
 #include <linux/errno.h>
 #include <linux/nodemask.h>
 #include <linux/mm_types.h>
+#include <linux/preempt.h>
 
 #include <asm/page.h>
 #include <asm/ptrace.h>
@@ -434,7 +435,9 @@ struct task_cputime {
  * We include PREEMPT_ACTIVE to avoid cond_resched() from working
  * before the scheduler is active -- see should_resched().
  */
-#define INIT_PREEMPT_COUNT	(1 + PREEMPT_ACTIVE)
+#define INIT_PREEMPT_COUNT	(1 + PREEMPT_ACTIVE + PREEMPT_NEED_RESCHED)
+#define PREEMPT_ENABLED		(PREEMPT_NEED_RESCHED)
+#define PREEMPT_DISABLED	(1 + PREEMPT_NEED_RESCHED)
 
 /**
  * struct thread_group_cputimer - thread group interval timer counts
@@ -2408,7 +2411,7 @@ static inline int signal_pending_state(long state, struct task_struct *p)
 
 static inline int need_resched(void)
 {
-	return unlikely(test_thread_flag(TIF_NEED_RESCHED));
+	return unlikely(test_preempt_need_resched());
 }
 
 /*
diff --git a/kernel/cpu/idle.c b/kernel/cpu/idle.c
index c261409500e4..988573a9a387 100644
--- a/kernel/cpu/idle.c
+++ b/kernel/cpu/idle.c
@@ -105,6 +105,13 @@ static void cpu_idle_loop(void)
 				__current_set_polling();
 			}
 			arch_cpu_idle_exit();
+			/*
+			 * We need to test and propagate the TIF_NEED_RESCHED
+			 * bit here because we might not have send the
+			 * reschedule IPI to idle tasks.
+			 */
+			if (tif_need_resched())
+				set_preempt_need_resched();
 		}
 		tick_nohz_idle_exit();
 		schedule_preempt_disabled();
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index fe89afac4d09..ee61f5affd20 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -525,8 +525,10 @@ void resched_task(struct task_struct *p)
 	set_tsk_need_resched(p);
 
 	cpu = task_cpu(p);
-	if (cpu == smp_processor_id())
+	if (cpu == smp_processor_id()) {
+		set_preempt_need_resched();
 		return;
+	}
 
 	/* NEED_RESCHED must be visible before we test polling */
 	smp_mb();
@@ -1391,6 +1393,14 @@ static void sched_ttwu_pending(void)
 
 void scheduler_ipi(void)
 {
+	/*
+	 * Fold TIF_NEED_RESCHED into the preempt_count; anybody setting
+	 * TIF_NEED_RESCHED remotely (for the first time) will also send
+	 * this IPI.
+	 */
+	if (tif_need_resched())
+		set_preempt_need_resched();
+
 	if (llist_empty(&this_rq()->wake_list)
 			&& !tick_nohz_full_cpu(smp_processor_id())
 			&& !got_nohz_idle_kick())
@@ -1714,7 +1724,7 @@ void sched_fork(struct task_struct *p)
 #endif
 #ifdef CONFIG_PREEMPT_COUNT
 	/* Want to start with kernel preemption disabled. */
-	task_thread_info(p)->preempt_count = 1;
+	task_thread_info(p)->preempt_count = PREEMPT_DISABLED;
 #endif
 #ifdef CONFIG_SMP
 	plist_node_init(&p->pushable_tasks, MAX_PRIO);
@@ -2425,6 +2435,7 @@ need_resched:
 	put_prev_task(rq, prev);
 	next = pick_next_task(rq);
 	clear_tsk_need_resched(prev);
+	clear_preempt_need_resched();
 	rq->skip_clock_update = 0;
 
 	if (likely(prev != next)) {
@@ -2536,11 +2547,10 @@ EXPORT_SYMBOL(preempt_schedule);
  */
 asmlinkage void __sched preempt_schedule_irq(void)
 {
-	struct thread_info *ti = current_thread_info();
 	enum ctx_state prev_state;
 
 	/* Catch callers which need to be fixed */
-	BUG_ON(ti->preempt_count || !irqs_disabled());
+	BUG_ON(preempt_count() || !irqs_disabled());
 
 	prev_state = exception_enter();
 
@@ -4207,7 +4217,7 @@ void init_idle(struct task_struct *idle, int cpu)
 	raw_spin_unlock_irqrestore(&rq->lock, flags);
 
 	/* Set the preempt count _outside_ the spinlocks! */
-	task_thread_info(idle)->preempt_count = 0;
+	task_thread_info(idle)->preempt_count = PREEMPT_ENABLED;
 
 	/*
 	 * The idle tasks have their own, simple scheduling class:
-- 
cgit 


From a787870924dbd6f321661e06d4ec1c7a408c9ccf Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 14 Aug 2013 14:55:40 +0200
Subject: sched, arch: Create asm/preempt.h

In order to prepare to per-arch implementations of preempt_count move
the required bits into an asm-generic header and use this for all
archs.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-h5j0c1r3e3fk015m30h8f1zx@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/alpha/include/asm/Kbuild      |  1 +
 arch/arc/include/asm/Kbuild        |  1 +
 arch/arm/include/asm/Kbuild        |  1 +
 arch/arm64/include/asm/Kbuild      |  1 +
 arch/avr32/include/asm/Kbuild      |  1 +
 arch/blackfin/include/asm/Kbuild   |  1 +
 arch/c6x/include/asm/Kbuild        |  1 +
 arch/cris/include/asm/Kbuild       |  1 +
 arch/frv/include/asm/Kbuild        |  1 +
 arch/h8300/include/asm/Kbuild      |  1 +
 arch/hexagon/include/asm/Kbuild    |  1 +
 arch/ia64/include/asm/Kbuild       |  1 +
 arch/m32r/include/asm/Kbuild       |  1 +
 arch/m68k/include/asm/Kbuild       |  1 +
 arch/metag/include/asm/Kbuild      |  1 +
 arch/microblaze/include/asm/Kbuild |  1 +
 arch/mips/include/asm/Kbuild       |  1 +
 arch/mn10300/include/asm/Kbuild    |  1 +
 arch/openrisc/include/asm/Kbuild   |  1 +
 arch/parisc/include/asm/Kbuild     |  1 +
 arch/powerpc/include/asm/Kbuild    |  1 +
 arch/s390/include/asm/Kbuild       |  1 +
 arch/score/include/asm/Kbuild      |  1 +
 arch/sh/include/asm/Kbuild         |  1 +
 arch/sparc/include/asm/Kbuild      |  1 +
 arch/tile/include/asm/Kbuild       |  1 +
 arch/um/include/asm/Kbuild         |  1 +
 arch/unicore32/include/asm/Kbuild  |  1 +
 arch/x86/include/asm/Kbuild        |  1 +
 arch/xtensa/include/asm/Kbuild     |  1 +
 include/asm-generic/preempt.h      | 54 ++++++++++++++++++++++++++++++++++++++
 include/linux/preempt.h            | 49 +---------------------------------
 32 files changed, 85 insertions(+), 48 deletions(-)
 create mode 100644 include/asm-generic/preempt.h

diff --git a/arch/alpha/include/asm/Kbuild b/arch/alpha/include/asm/Kbuild
index a6e85f448c1c..f01fb505ad52 100644
--- a/arch/alpha/include/asm/Kbuild
+++ b/arch/alpha/include/asm/Kbuild
@@ -3,3 +3,4 @@ generic-y += clkdev.h
 
 generic-y += exec.h
 generic-y += trace_clock.h
+generic-y += preempt.h
diff --git a/arch/arc/include/asm/Kbuild b/arch/arc/include/asm/Kbuild
index d8dd660898b9..5943f7f9d325 100644
--- a/arch/arc/include/asm/Kbuild
+++ b/arch/arc/include/asm/Kbuild
@@ -46,3 +46,4 @@ generic-y += ucontext.h
 generic-y += user.h
 generic-y += vga.h
 generic-y += xor.h
+generic-y += preempt.h
diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild
index d3db39860b9c..4e6838d4ddf6 100644
--- a/arch/arm/include/asm/Kbuild
+++ b/arch/arm/include/asm/Kbuild
@@ -33,3 +33,4 @@ generic-y += timex.h
 generic-y += trace_clock.h
 generic-y += types.h
 generic-y += unaligned.h
+generic-y += preempt.h
diff --git a/arch/arm64/include/asm/Kbuild b/arch/arm64/include/asm/Kbuild
index 79a642d199f2..519f89f5b6a3 100644
--- a/arch/arm64/include/asm/Kbuild
+++ b/arch/arm64/include/asm/Kbuild
@@ -50,3 +50,4 @@ generic-y += unaligned.h
 generic-y += user.h
 generic-y += vga.h
 generic-y += xor.h
+generic-y += preempt.h
diff --git a/arch/avr32/include/asm/Kbuild b/arch/avr32/include/asm/Kbuild
index d22af851f3f6..b946080ee8bb 100644
--- a/arch/avr32/include/asm/Kbuild
+++ b/arch/avr32/include/asm/Kbuild
@@ -3,3 +3,4 @@ generic-y	+= clkdev.h
 generic-y	+= exec.h
 generic-y	+= trace_clock.h
 generic-y	+= param.h
+generic-y += preempt.h
diff --git a/arch/blackfin/include/asm/Kbuild b/arch/blackfin/include/asm/Kbuild
index 127826f8a375..f2b43474b0e2 100644
--- a/arch/blackfin/include/asm/Kbuild
+++ b/arch/blackfin/include/asm/Kbuild
@@ -44,3 +44,4 @@ generic-y += ucontext.h
 generic-y += unaligned.h
 generic-y += user.h
 generic-y += xor.h
+generic-y += preempt.h
diff --git a/arch/c6x/include/asm/Kbuild b/arch/c6x/include/asm/Kbuild
index e49f918531ad..fc0b3c356027 100644
--- a/arch/c6x/include/asm/Kbuild
+++ b/arch/c6x/include/asm/Kbuild
@@ -56,3 +56,4 @@ generic-y += ucontext.h
 generic-y += user.h
 generic-y += vga.h
 generic-y += xor.h
+generic-y += preempt.h
diff --git a/arch/cris/include/asm/Kbuild b/arch/cris/include/asm/Kbuild
index c8325455520e..b06caf649a95 100644
--- a/arch/cris/include/asm/Kbuild
+++ b/arch/cris/include/asm/Kbuild
@@ -11,3 +11,4 @@ generic-y += module.h
 generic-y += trace_clock.h
 generic-y += vga.h
 generic-y += xor.h
+generic-y += preempt.h
diff --git a/arch/frv/include/asm/Kbuild b/arch/frv/include/asm/Kbuild
index c5d767028306..74742dc6a3da 100644
--- a/arch/frv/include/asm/Kbuild
+++ b/arch/frv/include/asm/Kbuild
@@ -2,3 +2,4 @@
 generic-y += clkdev.h
 generic-y += exec.h
 generic-y += trace_clock.h
+generic-y += preempt.h
diff --git a/arch/h8300/include/asm/Kbuild b/arch/h8300/include/asm/Kbuild
index 8ada3cf0c98d..7e0e7213a481 100644
--- a/arch/h8300/include/asm/Kbuild
+++ b/arch/h8300/include/asm/Kbuild
@@ -6,3 +6,4 @@ generic-y += mmu.h
 generic-y += module.h
 generic-y += trace_clock.h
 generic-y += xor.h
+generic-y += preempt.h
diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild
index 1da17caac23c..67c3450309b7 100644
--- a/arch/hexagon/include/asm/Kbuild
+++ b/arch/hexagon/include/asm/Kbuild
@@ -53,3 +53,4 @@ generic-y += types.h
 generic-y += ucontext.h
 generic-y += unaligned.h
 generic-y += xor.h
+generic-y += preempt.h
diff --git a/arch/ia64/include/asm/Kbuild b/arch/ia64/include/asm/Kbuild
index a3456f34f672..f93ee087e8fe 100644
--- a/arch/ia64/include/asm/Kbuild
+++ b/arch/ia64/include/asm/Kbuild
@@ -3,4 +3,5 @@ generic-y += clkdev.h
 generic-y += exec.h
 generic-y += kvm_para.h
 generic-y += trace_clock.h
+generic-y += preempt.h
 generic-y += vtime.h
\ No newline at end of file
diff --git a/arch/m32r/include/asm/Kbuild b/arch/m32r/include/asm/Kbuild
index bebdc36ebb0a..2b58c5f0bc38 100644
--- a/arch/m32r/include/asm/Kbuild
+++ b/arch/m32r/include/asm/Kbuild
@@ -3,3 +3,4 @@ generic-y += clkdev.h
 generic-y += exec.h
 generic-y += module.h
 generic-y += trace_clock.h
+generic-y += preempt.h
diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild
index 09d77a862da3..a5d27f272a59 100644
--- a/arch/m68k/include/asm/Kbuild
+++ b/arch/m68k/include/asm/Kbuild
@@ -31,3 +31,4 @@ generic-y += trace_clock.h
 generic-y += types.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
+generic-y += preempt.h
diff --git a/arch/metag/include/asm/Kbuild b/arch/metag/include/asm/Kbuild
index 6ae0ccb632cb..84d0c1d6b9b3 100644
--- a/arch/metag/include/asm/Kbuild
+++ b/arch/metag/include/asm/Kbuild
@@ -52,3 +52,4 @@ generic-y += unaligned.h
 generic-y += user.h
 generic-y += vga.h
 generic-y += xor.h
+generic-y += preempt.h
diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild
index d3c51a6a601d..ce0bbf8f5640 100644
--- a/arch/microblaze/include/asm/Kbuild
+++ b/arch/microblaze/include/asm/Kbuild
@@ -3,3 +3,4 @@ generic-y += clkdev.h
 generic-y += exec.h
 generic-y += trace_clock.h
 generic-y += syscalls.h
+generic-y += preempt.h
diff --git a/arch/mips/include/asm/Kbuild b/arch/mips/include/asm/Kbuild
index 454ddf9bb76f..1acbb8b77a71 100644
--- a/arch/mips/include/asm/Kbuild
+++ b/arch/mips/include/asm/Kbuild
@@ -11,5 +11,6 @@ generic-y += sections.h
 generic-y += segment.h
 generic-y += serial.h
 generic-y += trace_clock.h
+generic-y += preempt.h
 generic-y += ucontext.h
 generic-y += xor.h
diff --git a/arch/mn10300/include/asm/Kbuild b/arch/mn10300/include/asm/Kbuild
index c5d767028306..74742dc6a3da 100644
--- a/arch/mn10300/include/asm/Kbuild
+++ b/arch/mn10300/include/asm/Kbuild
@@ -2,3 +2,4 @@
 generic-y += clkdev.h
 generic-y += exec.h
 generic-y += trace_clock.h
+generic-y += preempt.h
diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild
index 195653e851da..78405625e799 100644
--- a/arch/openrisc/include/asm/Kbuild
+++ b/arch/openrisc/include/asm/Kbuild
@@ -67,3 +67,4 @@ generic-y += ucontext.h
 generic-y += user.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
+generic-y += preempt.h
diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild
index ff4c9faed546..a603b9ebe54c 100644
--- a/arch/parisc/include/asm/Kbuild
+++ b/arch/parisc/include/asm/Kbuild
@@ -4,3 +4,4 @@ generic-y += word-at-a-time.h auxvec.h user.h cputime.h emergency-restart.h \
 	  div64.h irq_regs.h kdebug.h kvm_para.h local64.h local.h param.h \
 	  poll.h xor.h clkdev.h exec.h
 generic-y += trace_clock.h
+generic-y += preempt.h
diff --git a/arch/powerpc/include/asm/Kbuild b/arch/powerpc/include/asm/Kbuild
index 704e6f10ae80..d8f9d2f18a23 100644
--- a/arch/powerpc/include/asm/Kbuild
+++ b/arch/powerpc/include/asm/Kbuild
@@ -2,4 +2,5 @@
 generic-y += clkdev.h
 generic-y += rwsem.h
 generic-y += trace_clock.h
+generic-y += preempt.h
 generic-y += vtime.h
\ No newline at end of file
diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild
index f313f9cbcf44..7a5288f3479a 100644
--- a/arch/s390/include/asm/Kbuild
+++ b/arch/s390/include/asm/Kbuild
@@ -2,3 +2,4 @@
 
 generic-y += clkdev.h
 generic-y += trace_clock.h
+generic-y += preempt.h
diff --git a/arch/score/include/asm/Kbuild b/arch/score/include/asm/Kbuild
index e1c7bb999b06..f3414ade77a3 100644
--- a/arch/score/include/asm/Kbuild
+++ b/arch/score/include/asm/Kbuild
@@ -4,3 +4,4 @@ header-y +=
 generic-y += clkdev.h
 generic-y += trace_clock.h
 generic-y += xor.h
+generic-y += preempt.h
diff --git a/arch/sh/include/asm/Kbuild b/arch/sh/include/asm/Kbuild
index 280bea9e5e2b..231efbb68108 100644
--- a/arch/sh/include/asm/Kbuild
+++ b/arch/sh/include/asm/Kbuild
@@ -34,3 +34,4 @@ generic-y += termios.h
 generic-y += trace_clock.h
 generic-y += ucontext.h
 generic-y += xor.h
+generic-y += preempt.h
diff --git a/arch/sparc/include/asm/Kbuild b/arch/sparc/include/asm/Kbuild
index 7e4a97fbded4..bf390667657a 100644
--- a/arch/sparc/include/asm/Kbuild
+++ b/arch/sparc/include/asm/Kbuild
@@ -16,3 +16,4 @@ generic-y += serial.h
 generic-y += trace_clock.h
 generic-y += types.h
 generic-y += word-at-a-time.h
+generic-y += preempt.h
diff --git a/arch/tile/include/asm/Kbuild b/arch/tile/include/asm/Kbuild
index 664d6ad23f80..22f3bd147fa7 100644
--- a/arch/tile/include/asm/Kbuild
+++ b/arch/tile/include/asm/Kbuild
@@ -38,3 +38,4 @@ generic-y += termios.h
 generic-y += trace_clock.h
 generic-y += types.h
 generic-y += xor.h
+generic-y += preempt.h
diff --git a/arch/um/include/asm/Kbuild b/arch/um/include/asm/Kbuild
index b30f34a79882..fdde187e6087 100644
--- a/arch/um/include/asm/Kbuild
+++ b/arch/um/include/asm/Kbuild
@@ -3,3 +3,4 @@ generic-y += hw_irq.h irq_regs.h kdebug.h percpu.h sections.h topology.h xor.h
 generic-y += ftrace.h pci.h io.h param.h delay.h mutex.h current.h exec.h
 generic-y += switch_to.h clkdev.h
 generic-y += trace_clock.h
+generic-y += preempt.h
diff --git a/arch/unicore32/include/asm/Kbuild b/arch/unicore32/include/asm/Kbuild
index 89d8b6c4e39a..00045cbe5c63 100644
--- a/arch/unicore32/include/asm/Kbuild
+++ b/arch/unicore32/include/asm/Kbuild
@@ -60,3 +60,4 @@ generic-y += unaligned.h
 generic-y += user.h
 generic-y += vga.h
 generic-y += xor.h
+generic-y += preempt.h
diff --git a/arch/x86/include/asm/Kbuild b/arch/x86/include/asm/Kbuild
index 7f669853317a..eca20286a91c 100644
--- a/arch/x86/include/asm/Kbuild
+++ b/arch/x86/include/asm/Kbuild
@@ -5,3 +5,4 @@ genhdr-y += unistd_64.h
 genhdr-y += unistd_x32.h
 
 generic-y += clkdev.h
+generic-y += preempt.h
diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild
index 1b982641ec35..228d6aee3a16 100644
--- a/arch/xtensa/include/asm/Kbuild
+++ b/arch/xtensa/include/asm/Kbuild
@@ -28,3 +28,4 @@ generic-y += termios.h
 generic-y += topology.h
 generic-y += trace_clock.h
 generic-y += xor.h
+generic-y += preempt.h
diff --git a/include/asm-generic/preempt.h b/include/asm-generic/preempt.h
new file mode 100644
index 000000000000..a1fc6590a743
--- /dev/null
+++ b/include/asm-generic/preempt.h
@@ -0,0 +1,54 @@
+#ifndef __ASM_PREEMPT_H
+#define __ASM_PREEMPT_H
+
+#include <linux/thread_info.h>
+
+/*
+ * We mask the PREEMPT_NEED_RESCHED bit so as not to confuse all current users
+ * that think a non-zero value indicates we cannot preempt.
+ */
+static __always_inline int preempt_count(void)
+{
+	return current_thread_info()->preempt_count & ~PREEMPT_NEED_RESCHED;
+}
+
+static __always_inline int *preempt_count_ptr(void)
+{
+	return &current_thread_info()->preempt_count;
+}
+
+/*
+ * We now loose PREEMPT_NEED_RESCHED and cause an extra reschedule; however the
+ * alternative is loosing a reschedule. Better schedule too often -- also this
+ * should be a very rare operation.
+ */
+static __always_inline void preempt_count_set(int pc)
+{
+	*preempt_count_ptr() = pc;
+}
+
+/*
+ * We fold the NEED_RESCHED bit into the preempt count such that
+ * preempt_enable() can decrement and test for needing to reschedule with a
+ * single instruction.
+ *
+ * We invert the actual bit, so that when the decrement hits 0 we know we both
+ * need to resched (the bit is cleared) and can resched (no preempt count).
+ */
+
+static __always_inline void set_preempt_need_resched(void)
+{
+	*preempt_count_ptr() &= ~PREEMPT_NEED_RESCHED;
+}
+
+static __always_inline void clear_preempt_need_resched(void)
+{
+	*preempt_count_ptr() |= PREEMPT_NEED_RESCHED;
+}
+
+static __always_inline bool test_preempt_need_resched(void)
+{
+	return !(*preempt_count_ptr() & PREEMPT_NEED_RESCHED);
+}
+
+#endif /* __ASM_PREEMPT_H */
diff --git a/include/linux/preempt.h b/include/linux/preempt.h
index 92e341853e4b..df8e245e8729 100644
--- a/include/linux/preempt.h
+++ b/include/linux/preempt.h
@@ -6,7 +6,6 @@
  * preempt_count (used for kernel preemption, interrupt count, etc.)
  */
 
-#include <linux/thread_info.h>
 #include <linux/linkage.h>
 #include <linux/list.h>
 
@@ -16,53 +15,7 @@
  */
 #define PREEMPT_NEED_RESCHED	0x80000000
 
-/*
- * We mask the PREEMPT_NEED_RESCHED bit so as not to confuse all current users
- * that think a non-zero value indicates we cannot preempt.
- */
-static __always_inline int preempt_count(void)
-{
-	return current_thread_info()->preempt_count & ~PREEMPT_NEED_RESCHED;
-}
-
-static __always_inline int *preempt_count_ptr(void)
-{
-	return &current_thread_info()->preempt_count;
-}
-
-/*
- * We now loose PREEMPT_NEED_RESCHED and cause an extra reschedule; however the
- * alternative is loosing a reschedule. Better schedule too often -- also this
- * should be a very rare operation.
- */
-static __always_inline void preempt_count_set(int pc)
-{
-	*preempt_count_ptr() = pc;
-}
-
-/*
- * We fold the NEED_RESCHED bit into the preempt count such that
- * preempt_enable() can decrement and test for needing to reschedule with a
- * single instruction.
- *
- * We invert the actual bit, so that when the decrement hits 0 we know we both
- * need to resched (the bit is cleared) and can resched (no preempt count).
- */
-
-static __always_inline void set_preempt_need_resched(void)
-{
-	*preempt_count_ptr() &= ~PREEMPT_NEED_RESCHED;
-}
-
-static __always_inline void clear_preempt_need_resched(void)
-{
-	*preempt_count_ptr() |= PREEMPT_NEED_RESCHED;
-}
-
-static __always_inline bool test_preempt_need_resched(void)
-{
-	return !(*preempt_count_ptr() & PREEMPT_NEED_RESCHED);
-}
+#include <asm/preempt.h>
 
 #if defined(CONFIG_DEBUG_PREEMPT) || defined(CONFIG_PREEMPT_TRACER)
   extern void add_preempt_count(int val);
-- 
cgit 


From 01028747559ac6c6f642a7bbd2875cc4f66b2feb Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 14 Aug 2013 14:55:46 +0200
Subject: sched: Create more preempt_count accessors

We need a few special preempt_count accessors:
 - task_preempt_count() for when we're interested in the preemption
   count of another (non-running) task.
 - init_task_preempt_count() for properly initializing the preemption
   count.
 - init_idle_preempt_count() a special case of the above for the idle
   threads.

With these no generic code ever touches thread_info::preempt_count
anymore and architectures could choose to remove it.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-jf5swrio8l78j37d06fzmo4r@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/asm-generic/preempt.h | 14 ++++++++++++++
 include/trace/events/sched.h  |  2 +-
 kernel/sched/core.c           |  7 +++----
 3 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/include/asm-generic/preempt.h b/include/asm-generic/preempt.h
index a1fc6590a743..8100b1ec1715 100644
--- a/include/asm-generic/preempt.h
+++ b/include/asm-generic/preempt.h
@@ -27,6 +27,20 @@ static __always_inline void preempt_count_set(int pc)
 	*preempt_count_ptr() = pc;
 }
 
+/*
+ * must be macros to avoid header recursion hell
+ */
+#define task_preempt_count(p) \
+	(task_thread_info(p)->preempt_count & ~PREEMPT_NEED_RESCHED)
+
+#define init_task_preempt_count(p) do { \
+	task_thread_info(p)->preempt_count = PREEMPT_DISABLED; \
+} while (0)
+
+#define init_idle_preempt_count(p, cpu) do { \
+	task_thread_info(p)->preempt_count = PREEMPT_ENABLED; \
+} while (0)
+
 /*
  * We fold the NEED_RESCHED bit into the preempt count such that
  * preempt_enable() can decrement and test for needing to reschedule with a
diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index 2e7d9947a10d..613381bcde40 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -100,7 +100,7 @@ static inline long __trace_sched_switch_state(struct task_struct *p)
 	/*
 	 * For all intents and purposes a preempted task is a running task.
 	 */
-	if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE)
+	if (task_preempt_count(p) & PREEMPT_ACTIVE)
 		state = TASK_RUNNING | TASK_STATE_MAX;
 #endif
 
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index ee61f5affd20..0ba4e4192390 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -983,7 +983,7 @@ void set_task_cpu(struct task_struct *p, unsigned int new_cpu)
 	 * ttwu() will sort out the placement.
 	 */
 	WARN_ON_ONCE(p->state != TASK_RUNNING && p->state != TASK_WAKING &&
-			!(task_thread_info(p)->preempt_count & PREEMPT_ACTIVE));
+			!(task_preempt_count(p) & PREEMPT_ACTIVE));
 
 #ifdef CONFIG_LOCKDEP
 	/*
@@ -1723,8 +1723,7 @@ void sched_fork(struct task_struct *p)
 	p->on_cpu = 0;
 #endif
 #ifdef CONFIG_PREEMPT_COUNT
-	/* Want to start with kernel preemption disabled. */
-	task_thread_info(p)->preempt_count = PREEMPT_DISABLED;
+	init_task_preempt_count(p);
 #endif
 #ifdef CONFIG_SMP
 	plist_node_init(&p->pushable_tasks, MAX_PRIO);
@@ -4217,7 +4216,7 @@ void init_idle(struct task_struct *idle, int cpu)
 	raw_spin_unlock_irqrestore(&rq->lock, flags);
 
 	/* Set the preempt count _outside_ the spinlocks! */
-	task_thread_info(idle)->preempt_count = PREEMPT_ENABLED;
+	init_idle_preempt_count(idle, cpu);
 
 	/*
 	 * The idle tasks have their own, simple scheduling class:
-- 
cgit 


From bdb43806589096ac4272fe1307e789846ac08d7c Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Tue, 10 Sep 2013 12:15:23 +0200
Subject: sched: Extract the basic add/sub preempt_count modifiers

Rewrite the preempt_count macros in order to extract the 3 basic
preempt_count value modifiers:

  __preempt_count_add()
  __preempt_count_sub()

and the new:

  __preempt_count_dec_and_test()

And since we're at it anyway, replace the unconventional
$op_preempt_count names with the more conventional preempt_count_$op.

Since these basic operators are equivalent to the previous _notrace()
variants, do away with the _notrace() versions.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-ewbpdbupy9xpsjhg960zwbv8@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/mips/mm/init.c           |   5 +-
 arch/x86/kernel/traps.c       |   4 +-
 include/asm-generic/preempt.h |  35 ++++++++++++++
 include/linux/hardirq.h       |   8 ++--
 include/linux/preempt.h       | 106 +++++++++++++++++++-----------------------
 include/linux/sched.h         |   5 --
 include/linux/uaccess.h       |   8 +---
 kernel/context_tracking.c     |   2 +-
 kernel/sched/core.c           |  29 +++++-------
 kernel/softirq.c              |  14 +++---
 10 files changed, 113 insertions(+), 103 deletions(-)

diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index e205ef598e97..12156176c7ca 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -124,7 +124,7 @@ void *kmap_coherent(struct page *page, unsigned long addr)
 
 	BUG_ON(Page_dcache_dirty(page));
 
-	inc_preempt_count();
+	pagefault_disable();
 	idx = (addr >> PAGE_SHIFT) & (FIX_N_COLOURS - 1);
 #ifdef CONFIG_MIPS_MT_SMTC
 	idx += FIX_N_COLOURS * smp_processor_id() +
@@ -193,8 +193,7 @@ void kunmap_coherent(void)
 	write_c0_entryhi(old_ctx);
 	EXIT_CRITICAL(flags);
 #endif
-	dec_preempt_count();
-	preempt_check_resched();
+	pagefault_enable();
 }
 
 void copy_user_highpage(struct page *to, struct page *from,
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 8c8093b146ca..729aa779ff75 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -88,7 +88,7 @@ static inline void conditional_sti(struct pt_regs *regs)
 
 static inline void preempt_conditional_sti(struct pt_regs *regs)
 {
-	inc_preempt_count();
+	preempt_count_inc();
 	if (regs->flags & X86_EFLAGS_IF)
 		local_irq_enable();
 }
@@ -103,7 +103,7 @@ static inline void preempt_conditional_cli(struct pt_regs *regs)
 {
 	if (regs->flags & X86_EFLAGS_IF)
 		local_irq_disable();
-	dec_preempt_count();
+	preempt_count_dec();
 }
 
 static int __kprobes
diff --git a/include/asm-generic/preempt.h b/include/asm-generic/preempt.h
index 8100b1ec1715..82d958fc3823 100644
--- a/include/asm-generic/preempt.h
+++ b/include/asm-generic/preempt.h
@@ -65,4 +65,39 @@ static __always_inline bool test_preempt_need_resched(void)
 	return !(*preempt_count_ptr() & PREEMPT_NEED_RESCHED);
 }
 
+/*
+ * The various preempt_count add/sub methods
+ */
+
+static __always_inline void __preempt_count_add(int val)
+{
+	*preempt_count_ptr() += val;
+}
+
+static __always_inline void __preempt_count_sub(int val)
+{
+	*preempt_count_ptr() -= val;
+}
+
+static __always_inline bool __preempt_count_dec_and_test(void)
+{
+	return !--*preempt_count_ptr();
+}
+
+/*
+ * Returns true when we need to resched -- even if we can not.
+ */
+static __always_inline bool need_resched(void)
+{
+	return unlikely(test_preempt_need_resched());
+}
+
+/*
+ * Returns true when we need to resched and can (barring IRQ state).
+ */
+static __always_inline bool should_resched(void)
+{
+	return unlikely(!*preempt_count_ptr());
+}
+
 #endif /* __ASM_PREEMPT_H */
diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h
index 1e041063b226..d9cf963ac832 100644
--- a/include/linux/hardirq.h
+++ b/include/linux/hardirq.h
@@ -33,7 +33,7 @@ extern void rcu_nmi_exit(void);
 #define __irq_enter()					\
 	do {						\
 		account_irq_enter_time(current);	\
-		add_preempt_count(HARDIRQ_OFFSET);	\
+		preempt_count_add(HARDIRQ_OFFSET);	\
 		trace_hardirq_enter();			\
 	} while (0)
 
@@ -49,7 +49,7 @@ extern void irq_enter(void);
 	do {						\
 		trace_hardirq_exit();			\
 		account_irq_exit_time(current);		\
-		sub_preempt_count(HARDIRQ_OFFSET);	\
+		preempt_count_sub(HARDIRQ_OFFSET);	\
 	} while (0)
 
 /*
@@ -62,7 +62,7 @@ extern void irq_exit(void);
 		lockdep_off();					\
 		ftrace_nmi_enter();				\
 		BUG_ON(in_nmi());				\
-		add_preempt_count(NMI_OFFSET + HARDIRQ_OFFSET);	\
+		preempt_count_add(NMI_OFFSET + HARDIRQ_OFFSET);	\
 		rcu_nmi_enter();				\
 		trace_hardirq_enter();				\
 	} while (0)
@@ -72,7 +72,7 @@ extern void irq_exit(void);
 		trace_hardirq_exit();				\
 		rcu_nmi_exit();					\
 		BUG_ON(!in_nmi());				\
-		sub_preempt_count(NMI_OFFSET + HARDIRQ_OFFSET);	\
+		preempt_count_sub(NMI_OFFSET + HARDIRQ_OFFSET);	\
 		ftrace_nmi_exit();				\
 		lockdep_on();					\
 	} while (0)
diff --git a/include/linux/preempt.h b/include/linux/preempt.h
index df8e245e8729..2343d8715299 100644
--- a/include/linux/preempt.h
+++ b/include/linux/preempt.h
@@ -18,97 +18,86 @@
 #include <asm/preempt.h>
 
 #if defined(CONFIG_DEBUG_PREEMPT) || defined(CONFIG_PREEMPT_TRACER)
-  extern void add_preempt_count(int val);
-  extern void sub_preempt_count(int val);
+extern void preempt_count_add(int val);
+extern void preempt_count_sub(int val);
+#define preempt_count_dec_and_test() ({ preempt_count_sub(1); should_resched(); })
 #else
-# define add_preempt_count(val)	do { *preempt_count_ptr() += (val); } while (0)
-# define sub_preempt_count(val)	do { *preempt_count_ptr() -= (val); } while (0)
+#define preempt_count_add(val)	__preempt_count_add(val)
+#define preempt_count_sub(val)	__preempt_count_sub(val)
+#define preempt_count_dec_and_test() __preempt_count_dec_and_test()
 #endif
 
-#define inc_preempt_count() add_preempt_count(1)
-#define dec_preempt_count() sub_preempt_count(1)
-
-#ifdef CONFIG_PREEMPT
-
-asmlinkage void preempt_schedule(void);
-
-#define preempt_check_resched() \
-do { \
-	if (unlikely(!*preempt_count_ptr())) \
-		preempt_schedule(); \
-} while (0)
-
-#ifdef CONFIG_CONTEXT_TRACKING
-
-void preempt_schedule_context(void);
-
-#define preempt_check_resched_context() \
-do { \
-	if (unlikely(!*preempt_count_ptr())) \
-		preempt_schedule_context(); \
-} while (0)
-#else
-
-#define preempt_check_resched_context() preempt_check_resched()
-
-#endif /* CONFIG_CONTEXT_TRACKING */
-
-#else /* !CONFIG_PREEMPT */
-
-#define preempt_check_resched()		do { } while (0)
-#define preempt_check_resched_context()	do { } while (0)
-
-#endif /* CONFIG_PREEMPT */
+#define __preempt_count_inc() __preempt_count_add(1)
+#define __preempt_count_dec() __preempt_count_sub(1)
 
+#define preempt_count_inc() preempt_count_add(1)
+#define preempt_count_dec() preempt_count_sub(1)
 
 #ifdef CONFIG_PREEMPT_COUNT
 
 #define preempt_disable() \
 do { \
-	inc_preempt_count(); \
+	preempt_count_inc(); \
 	barrier(); \
 } while (0)
 
 #define sched_preempt_enable_no_resched() \
 do { \
 	barrier(); \
-	dec_preempt_count(); \
+	preempt_count_dec(); \
 } while (0)
 
-#define preempt_enable_no_resched()	sched_preempt_enable_no_resched()
+#define preempt_enable_no_resched() sched_preempt_enable_no_resched()
 
+#ifdef CONFIG_PREEMPT
+asmlinkage void preempt_schedule(void);
 #define preempt_enable() \
 do { \
-	preempt_enable_no_resched(); \
-	preempt_check_resched(); \
+	barrier(); \
+	if (unlikely(preempt_count_dec_and_test())) \
+		preempt_schedule(); \
 } while (0)
 
-/* For debugging and tracer internals only! */
-#define add_preempt_count_notrace(val)			\
-	do { *preempt_count_ptr() += (val); } while (0)
-#define sub_preempt_count_notrace(val)			\
-	do { *preempt_count_ptr() -= (val); } while (0)
-#define inc_preempt_count_notrace() add_preempt_count_notrace(1)
-#define dec_preempt_count_notrace() sub_preempt_count_notrace(1)
+#define preempt_check_resched() \
+do { \
+	if (should_resched()) \
+		preempt_schedule(); \
+} while (0)
+
+#else
+#define preempt_enable() preempt_enable_no_resched()
+#define preempt_check_resched() do { } while (0)
+#endif
 
 #define preempt_disable_notrace() \
 do { \
-	inc_preempt_count_notrace(); \
+	__preempt_count_inc(); \
 	barrier(); \
 } while (0)
 
 #define preempt_enable_no_resched_notrace() \
 do { \
 	barrier(); \
-	dec_preempt_count_notrace(); \
+	__preempt_count_dec(); \
 } while (0)
 
-/* preempt_check_resched is OK to trace */
+#ifdef CONFIG_PREEMPT
+
+#ifdef CONFIG_CONTEXT_TRACKING
+asmlinkage void preempt_schedule_context(void);
+#else
+#define preempt_schedule_context() preempt_schedule()
+#endif
+
 #define preempt_enable_notrace() \
 do { \
-	preempt_enable_no_resched_notrace(); \
-	preempt_check_resched_context(); \
+	barrier(); \
+	if (unlikely(__preempt_count_dec_and_test())) \
+		preempt_schedule_context(); \
 } while (0)
+#else
+#define preempt_enable_notrace() preempt_enable_no_resched_notrace()
+#endif
 
 #else /* !CONFIG_PREEMPT_COUNT */
 
@@ -118,10 +107,11 @@ do { \
  * that can cause faults and scheduling migrate into our preempt-protected
  * region.
  */
-#define preempt_disable()		barrier()
+#define preempt_disable()			barrier()
 #define sched_preempt_enable_no_resched()	barrier()
-#define preempt_enable_no_resched()	barrier()
-#define preempt_enable()		barrier()
+#define preempt_enable_no_resched()		barrier()
+#define preempt_enable()			barrier()
+#define preempt_check_resched()			do { } while (0)
 
 #define preempt_disable_notrace()		barrier()
 #define preempt_enable_no_resched_notrace()	barrier()
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 9fa151fb968e..06ac17c7e639 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2409,11 +2409,6 @@ static inline int signal_pending_state(long state, struct task_struct *p)
 	return (state & TASK_INTERRUPTIBLE) || __fatal_signal_pending(p);
 }
 
-static inline int need_resched(void)
-{
-	return unlikely(test_preempt_need_resched());
-}
-
 /*
  * cond_resched() and cond_resched_lock(): latency reduction via
  * explicit rescheduling in places that are safe. The return
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
index 5ca0951e1855..9d8cf056e661 100644
--- a/include/linux/uaccess.h
+++ b/include/linux/uaccess.h
@@ -15,7 +15,7 @@
  */
 static inline void pagefault_disable(void)
 {
-	inc_preempt_count();
+	preempt_count_inc();
 	/*
 	 * make sure to have issued the store before a pagefault
 	 * can hit.
@@ -30,11 +30,7 @@ static inline void pagefault_enable(void)
 	 * the pagefault handler again.
 	 */
 	barrier();
-	dec_preempt_count();
-	/*
-	 * make sure we do..
-	 */
-	barrier();
+	preempt_count_dec();
 	preempt_check_resched();
 }
 
diff --git a/kernel/context_tracking.c b/kernel/context_tracking.c
index 247091bf0587..013161f1c807 100644
--- a/kernel/context_tracking.c
+++ b/kernel/context_tracking.c
@@ -111,7 +111,7 @@ void context_tracking_user_enter(void)
  * instead of preempt_schedule() to exit user context if needed before
  * calling the scheduler.
  */
-void __sched notrace preempt_schedule_context(void)
+asmlinkage void __sched notrace preempt_schedule_context(void)
 {
 	enum ctx_state prev_ctx;
 
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 0ba4e4192390..9c84a9ab1892 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2219,7 +2219,7 @@ notrace unsigned long get_parent_ip(unsigned long addr)
 #if defined(CONFIG_PREEMPT) && (defined(CONFIG_DEBUG_PREEMPT) || \
 				defined(CONFIG_PREEMPT_TRACER))
 
-void __kprobes add_preempt_count(int val)
+void __kprobes preempt_count_add(int val)
 {
 #ifdef CONFIG_DEBUG_PREEMPT
 	/*
@@ -2228,7 +2228,7 @@ void __kprobes add_preempt_count(int val)
 	if (DEBUG_LOCKS_WARN_ON((preempt_count() < 0)))
 		return;
 #endif
-	add_preempt_count_notrace(val);
+	__preempt_count_add(val);
 #ifdef CONFIG_DEBUG_PREEMPT
 	/*
 	 * Spinlock count overflowing soon?
@@ -2239,9 +2239,9 @@ void __kprobes add_preempt_count(int val)
 	if (preempt_count() == val)
 		trace_preempt_off(CALLER_ADDR0, get_parent_ip(CALLER_ADDR1));
 }
-EXPORT_SYMBOL(add_preempt_count);
+EXPORT_SYMBOL(preempt_count_add);
 
-void __kprobes sub_preempt_count(int val)
+void __kprobes preempt_count_sub(int val)
 {
 #ifdef CONFIG_DEBUG_PREEMPT
 	/*
@@ -2259,9 +2259,9 @@ void __kprobes sub_preempt_count(int val)
 
 	if (preempt_count() == val)
 		trace_preempt_on(CALLER_ADDR0, get_parent_ip(CALLER_ADDR1));
-	sub_preempt_count_notrace(val);
+	__preempt_count_sub(val);
 }
-EXPORT_SYMBOL(sub_preempt_count);
+EXPORT_SYMBOL(preempt_count_sub);
 
 #endif
 
@@ -2525,9 +2525,9 @@ asmlinkage void __sched notrace preempt_schedule(void)
 		return;
 
 	do {
-		add_preempt_count_notrace(PREEMPT_ACTIVE);
+		__preempt_count_add(PREEMPT_ACTIVE);
 		__schedule();
-		sub_preempt_count_notrace(PREEMPT_ACTIVE);
+		__preempt_count_sub(PREEMPT_ACTIVE);
 
 		/*
 		 * Check again in case we missed a preemption opportunity
@@ -2554,11 +2554,11 @@ asmlinkage void __sched preempt_schedule_irq(void)
 	prev_state = exception_enter();
 
 	do {
-		add_preempt_count(PREEMPT_ACTIVE);
+		__preempt_count_add(PREEMPT_ACTIVE);
 		local_irq_enable();
 		__schedule();
 		local_irq_disable();
-		sub_preempt_count(PREEMPT_ACTIVE);
+		__preempt_count_sub(PREEMPT_ACTIVE);
 
 		/*
 		 * Check again in case we missed a preemption opportunity
@@ -3798,16 +3798,11 @@ SYSCALL_DEFINE0(sched_yield)
 	return 0;
 }
 
-static inline int should_resched(void)
-{
-	return need_resched() && !(preempt_count() & PREEMPT_ACTIVE);
-}
-
 static void __cond_resched(void)
 {
-	add_preempt_count(PREEMPT_ACTIVE);
+	__preempt_count_add(PREEMPT_ACTIVE);
 	__schedule();
-	sub_preempt_count(PREEMPT_ACTIVE);
+	__preempt_count_sub(PREEMPT_ACTIVE);
 }
 
 int __sched _cond_resched(void)
diff --git a/kernel/softirq.c b/kernel/softirq.c
index a90de70cf1f3..3e88612fc87e 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -100,13 +100,13 @@ static void __local_bh_disable(unsigned long ip, unsigned int cnt)
 
 	raw_local_irq_save(flags);
 	/*
-	 * The preempt tracer hooks into add_preempt_count and will break
+	 * The preempt tracer hooks into preempt_count_add and will break
 	 * lockdep because it calls back into lockdep after SOFTIRQ_OFFSET
 	 * is set and before current->softirq_enabled is cleared.
 	 * We must manually increment preempt_count here and manually
 	 * call the trace_preempt_off later.
 	 */
-	add_preempt_count_notrace(cnt);
+	__preempt_count_add(cnt);
 	/*
 	 * Were softirqs turned off above:
 	 */
@@ -120,7 +120,7 @@ static void __local_bh_disable(unsigned long ip, unsigned int cnt)
 #else /* !CONFIG_TRACE_IRQFLAGS */
 static inline void __local_bh_disable(unsigned long ip, unsigned int cnt)
 {
-	add_preempt_count(cnt);
+	preempt_count_add(cnt);
 	barrier();
 }
 #endif /* CONFIG_TRACE_IRQFLAGS */
@@ -139,7 +139,7 @@ static void __local_bh_enable(unsigned int cnt)
 
 	if (softirq_count() == cnt)
 		trace_softirqs_on(_RET_IP_);
-	sub_preempt_count(cnt);
+	preempt_count_sub(cnt);
 }
 
 /*
@@ -169,12 +169,12 @@ static inline void _local_bh_enable_ip(unsigned long ip)
 	 * Keep preemption disabled until we are done with
 	 * softirq processing:
  	 */
-	sub_preempt_count(SOFTIRQ_DISABLE_OFFSET - 1);
+	preempt_count_sub(SOFTIRQ_DISABLE_OFFSET - 1);
 
 	if (unlikely(!in_interrupt() && local_softirq_pending()))
 		do_softirq();
 
-	dec_preempt_count();
+	preempt_count_dec();
 #ifdef CONFIG_TRACE_IRQFLAGS
 	local_irq_enable();
 #endif
@@ -360,7 +360,7 @@ void irq_exit(void)
 
 	account_irq_exit_time(current);
 	trace_hardirq_exit();
-	sub_preempt_count(HARDIRQ_OFFSET);
+	preempt_count_sub(HARDIRQ_OFFSET);
 	if (!in_interrupt() && local_softirq_pending())
 		invoke_softirq();
 
-- 
cgit 


From a233f1120c37724938f7201fe2353b2577adaaf9 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 23 Sep 2013 19:04:26 +0200
Subject: sched: Prepare for per-cpu preempt_count

When using per-cpu preempt_count variables we need to save/restore the
preempt_count on context switch (into per task storage; for instance
the old thread_info::preempt_count variable) because of
PREEMPT_ACTIVE.

However, this means that on fork() the preempt_count value of the last
context switch gets copied and if we had a PREEMPT_ACTIVE switch right
before cloning a child task the child task will now too have
PREEMPT_ACTIVE set and start its life with an extra PREEMPT_ACTIVE
count.

Therefore we need to make init_task_preempt_count() unconditional;
this resets whatever preempt_count we inherited from our parent
process.

Doing so for !per-cpu implementations is harmless.

For !PREEMPT_COUNT kernels we need to be careful not to start life
with an increased preempt_count.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-4k0b7oy1rcdyzochwiixuwi9@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/sched.h | 12 +++++++++---
 kernel/sched/core.c   |  2 --
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 06ac17c7e639..b09798b672f3 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -428,6 +428,14 @@ struct task_cputime {
 		.sum_exec_runtime = 0,				\
 	}
 
+#define PREEMPT_ENABLED		(PREEMPT_NEED_RESCHED)
+
+#ifdef CONFIG_PREEMPT_COUNT
+#define PREEMPT_DISABLED	(1 + PREEMPT_ENABLED)
+#else
+#define PREEMPT_DISABLED	PREEMPT_ENABLED
+#endif
+
 /*
  * Disable preemption until the scheduler is running.
  * Reset by start_kernel()->sched_init()->init_idle().
@@ -435,9 +443,7 @@ struct task_cputime {
  * We include PREEMPT_ACTIVE to avoid cond_resched() from working
  * before the scheduler is active -- see should_resched().
  */
-#define INIT_PREEMPT_COUNT	(1 + PREEMPT_ACTIVE + PREEMPT_NEED_RESCHED)
-#define PREEMPT_ENABLED		(PREEMPT_NEED_RESCHED)
-#define PREEMPT_DISABLED	(1 + PREEMPT_NEED_RESCHED)
+#define INIT_PREEMPT_COUNT	(PREEMPT_DISABLED + PREEMPT_ACTIVE)
 
 /**
  * struct thread_group_cputimer - thread group interval timer counts
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 9c84a9ab1892..f575d5bd7e7a 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1722,9 +1722,7 @@ void sched_fork(struct task_struct *p)
 #if defined(CONFIG_SMP)
 	p->on_cpu = 0;
 #endif
-#ifdef CONFIG_PREEMPT_COUNT
 	init_task_preempt_count(p);
-#endif
 #ifdef CONFIG_SMP
 	plist_node_init(&p->pushable_tasks, MAX_PRIO);
 #endif
-- 
cgit 


From c2daa3bed53a81171cf8c1a36db798e82b91afe8 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 14 Aug 2013 14:51:00 +0200
Subject: sched, x86: Provide a per-cpu preempt_count implementation

Convert x86 to use a per-cpu preemption count. The reason for doing so
is that accessing per-cpu variables is a lot cheaper than accessing
thread_info variables.

We still need to save/restore the actual preemption count due to
PREEMPT_ACTIVE so we place the per-cpu __preempt_count variable in the
same cache-line as the other hot __switch_to() variables such as
current_task.

NOTE: this save/restore is required even for !PREEMPT kernels as
cond_resched() also relies on preempt_count's PREEMPT_ACTIVE to ignore
task_struct::state.

Also rename thread_info::preempt_count to ensure nobody is
'accidentally' still poking at it.

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-gzn5rfsf8trgjoqx8hyayy3q@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/include/asm/Kbuild        |  1 -
 arch/x86/include/asm/preempt.h     | 98 ++++++++++++++++++++++++++++++++++++++
 arch/x86/include/asm/thread_info.h |  5 +-
 arch/x86/kernel/asm-offsets.c      |  1 -
 arch/x86/kernel/cpu/common.c       |  5 ++
 arch/x86/kernel/entry_32.S         |  7 +--
 arch/x86/kernel/entry_64.S         |  4 +-
 arch/x86/kernel/irq_32.c           |  4 --
 arch/x86/kernel/process_32.c       |  8 ++++
 arch/x86/kernel/process_64.c       |  8 ++++
 10 files changed, 124 insertions(+), 17 deletions(-)
 create mode 100644 arch/x86/include/asm/preempt.h

diff --git a/arch/x86/include/asm/Kbuild b/arch/x86/include/asm/Kbuild
index eca20286a91c..7f669853317a 100644
--- a/arch/x86/include/asm/Kbuild
+++ b/arch/x86/include/asm/Kbuild
@@ -5,4 +5,3 @@ genhdr-y += unistd_64.h
 genhdr-y += unistd_x32.h
 
 generic-y += clkdev.h
-generic-y += preempt.h
diff --git a/arch/x86/include/asm/preempt.h b/arch/x86/include/asm/preempt.h
new file mode 100644
index 000000000000..1309942b95e5
--- /dev/null
+++ b/arch/x86/include/asm/preempt.h
@@ -0,0 +1,98 @@
+#ifndef __ASM_PREEMPT_H
+#define __ASM_PREEMPT_H
+
+#include <asm/rmwcc.h>
+#include <asm/percpu.h>
+#include <linux/thread_info.h>
+
+DECLARE_PER_CPU(int, __preempt_count);
+
+/*
+ * We mask the PREEMPT_NEED_RESCHED bit so as not to confuse all current users
+ * that think a non-zero value indicates we cannot preempt.
+ */
+static __always_inline int preempt_count(void)
+{
+	return __this_cpu_read_4(__preempt_count) & ~PREEMPT_NEED_RESCHED;
+}
+
+static __always_inline void preempt_count_set(int pc)
+{
+	__this_cpu_write_4(__preempt_count, pc);
+}
+
+/*
+ * must be macros to avoid header recursion hell
+ */
+#define task_preempt_count(p) \
+	(task_thread_info(p)->saved_preempt_count & ~PREEMPT_NEED_RESCHED)
+
+#define init_task_preempt_count(p) do { \
+	task_thread_info(p)->saved_preempt_count = PREEMPT_DISABLED; \
+} while (0)
+
+#define init_idle_preempt_count(p, cpu) do { \
+	task_thread_info(p)->saved_preempt_count = PREEMPT_ENABLED; \
+	per_cpu(__preempt_count, (cpu)) = PREEMPT_ENABLED; \
+} while (0)
+
+/*
+ * We fold the NEED_RESCHED bit into the preempt count such that
+ * preempt_enable() can decrement and test for needing to reschedule with a
+ * single instruction.
+ *
+ * We invert the actual bit, so that when the decrement hits 0 we know we both
+ * need to resched (the bit is cleared) and can resched (no preempt count).
+ */
+
+static __always_inline void set_preempt_need_resched(void)
+{
+	__this_cpu_and_4(__preempt_count, ~PREEMPT_NEED_RESCHED);
+}
+
+static __always_inline void clear_preempt_need_resched(void)
+{
+	__this_cpu_or_4(__preempt_count, PREEMPT_NEED_RESCHED);
+}
+
+static __always_inline bool test_preempt_need_resched(void)
+{
+	return !(__this_cpu_read_4(__preempt_count) & PREEMPT_NEED_RESCHED);
+}
+
+/*
+ * The various preempt_count add/sub methods
+ */
+
+static __always_inline void __preempt_count_add(int val)
+{
+	__this_cpu_add_4(__preempt_count, val);
+}
+
+static __always_inline void __preempt_count_sub(int val)
+{
+	__this_cpu_add_4(__preempt_count, -val);
+}
+
+static __always_inline bool __preempt_count_dec_and_test(void)
+{
+	GEN_UNARY_RMWcc("decl", __preempt_count, __percpu_arg(0), "e");
+}
+
+/*
+ * Returns true when we need to resched -- even if we can not.
+ */
+static __always_inline bool need_resched(void)
+{
+	return unlikely(test_preempt_need_resched());
+}
+
+/*
+ * Returns true when we need to resched and can (barring IRQ state).
+ */
+static __always_inline bool should_resched(void)
+{
+	return unlikely(!__this_cpu_read_4(__preempt_count));
+}
+
+#endif /* __ASM_PREEMPT_H */
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index 27811190cbd7..c46a46be1ec6 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -28,8 +28,7 @@ struct thread_info {
 	__u32			flags;		/* low level flags */
 	__u32			status;		/* thread synchronous flags */
 	__u32			cpu;		/* current CPU */
-	int			preempt_count;	/* 0 => preemptable,
-						   <0 => BUG */
+	int			saved_preempt_count;
 	mm_segment_t		addr_limit;
 	struct restart_block    restart_block;
 	void __user		*sysenter_return;
@@ -49,7 +48,7 @@ struct thread_info {
 	.exec_domain	= &default_exec_domain,	\
 	.flags		= 0,			\
 	.cpu		= 0,			\
-	.preempt_count	= INIT_PREEMPT_COUNT,	\
+	.saved_preempt_count = INIT_PREEMPT_COUNT,	\
 	.addr_limit	= KERNEL_DS,		\
 	.restart_block = {			\
 		.fn = do_no_restart_syscall,	\
diff --git a/arch/x86/kernel/asm-offsets.c b/arch/x86/kernel/asm-offsets.c
index 28610822fb3c..9f6b9341950f 100644
--- a/arch/x86/kernel/asm-offsets.c
+++ b/arch/x86/kernel/asm-offsets.c
@@ -32,7 +32,6 @@ void common(void) {
 	OFFSET(TI_flags, thread_info, flags);
 	OFFSET(TI_status, thread_info, status);
 	OFFSET(TI_addr_limit, thread_info, addr_limit);
-	OFFSET(TI_preempt_count, thread_info, preempt_count);
 
 	BLANK();
 	OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx);
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 2793d1f095a2..5223fe6dec7b 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1095,6 +1095,9 @@ DEFINE_PER_CPU(char *, irq_stack_ptr) =
 
 DEFINE_PER_CPU(unsigned int, irq_count) __visible = -1;
 
+DEFINE_PER_CPU(int, __preempt_count) = INIT_PREEMPT_COUNT;
+EXPORT_PER_CPU_SYMBOL(__preempt_count);
+
 DEFINE_PER_CPU(struct task_struct *, fpu_owner_task);
 
 /*
@@ -1169,6 +1172,8 @@ void debug_stack_reset(void)
 
 DEFINE_PER_CPU(struct task_struct *, current_task) = &init_task;
 EXPORT_PER_CPU_SYMBOL(current_task);
+DEFINE_PER_CPU(int, __preempt_count) = INIT_PREEMPT_COUNT;
+EXPORT_PER_CPU_SYMBOL(__preempt_count);
 DEFINE_PER_CPU(struct task_struct *, fpu_owner_task);
 
 #ifdef CONFIG_CC_STACKPROTECTOR
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index f0dcb0ceb6a2..fd1bc1b15e6d 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -362,12 +362,9 @@ END(ret_from_exception)
 #ifdef CONFIG_PREEMPT
 ENTRY(resume_kernel)
 	DISABLE_INTERRUPTS(CLBR_ANY)
-	cmpl $0,TI_preempt_count(%ebp)	# non-zero preempt_count ?
-	jnz restore_all
 need_resched:
-	movl TI_flags(%ebp), %ecx	# need_resched set ?
-	testb $_TIF_NEED_RESCHED, %cl
-	jz restore_all
+	cmpl $0,PER_CPU_VAR(__preempt_count)
+	jnz restore_all
 	testl $X86_EFLAGS_IF,PT_EFLAGS(%esp)	# interrupts off (exception path) ?
 	jz restore_all
 	call preempt_schedule_irq
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index 1b69951a81e2..6a43e7d29fe7 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -1118,10 +1118,8 @@ retint_signal:
 	/* Returning to kernel space. Check if we need preemption */
 	/* rcx:	 threadinfo. interrupts off. */
 ENTRY(retint_kernel)
-	cmpl $0,TI_preempt_count(%rcx)
+	cmpl $0,PER_CPU_VAR(__preempt_count)
 	jnz  retint_restore_args
-	bt  $TIF_NEED_RESCHED,TI_flags(%rcx)
-	jnc  retint_restore_args
 	bt   $9,EFLAGS-ARGOFFSET(%rsp)	/* interrupts off? */
 	jnc  retint_restore_args
 	call preempt_schedule_irq
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index 4186755f1d7c..3fe066359ac0 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -100,9 +100,6 @@ execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq)
 	irqctx->tinfo.task = curctx->tinfo.task;
 	irqctx->tinfo.previous_esp = current_stack_pointer;
 
-	/* Copy the preempt_count so that the [soft]irq checks work. */
-	irqctx->tinfo.preempt_count = curctx->tinfo.preempt_count;
-
 	if (unlikely(overflow))
 		call_on_stack(print_stack_overflow, isp);
 
@@ -131,7 +128,6 @@ void irq_ctx_init(int cpu)
 					       THREAD_SIZE_ORDER));
 	memset(&irqctx->tinfo, 0, sizeof(struct thread_info));
 	irqctx->tinfo.cpu		= cpu;
-	irqctx->tinfo.preempt_count	= HARDIRQ_OFFSET;
 	irqctx->tinfo.addr_limit	= MAKE_MM_SEG(0);
 
 	per_cpu(hardirq_ctx, cpu) = irqctx;
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index 884f98f69354..c2ec1aa6d454 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -291,6 +291,14 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	if (get_kernel_rpl() && unlikely(prev->iopl != next->iopl))
 		set_iopl_mask(next->iopl);
 
+	/*
+	 * If it were not for PREEMPT_ACTIVE we could guarantee that the
+	 * preempt_count of all tasks was equal here and this would not be
+	 * needed.
+	 */
+	task_thread_info(prev_p)->saved_preempt_count = this_cpu_read(__preempt_count);
+	this_cpu_write(__preempt_count, task_thread_info(next_p)->saved_preempt_count);
+
 	/*
 	 * Now maybe handle debug registers and/or IO bitmaps
 	 */
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index bb1dc51bab05..45ab4d6fc8a7 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -363,6 +363,14 @@ __switch_to(struct task_struct *prev_p, struct task_struct *next_p)
 	this_cpu_write(old_rsp, next->usersp);
 	this_cpu_write(current_task, next_p);
 
+	/*
+	 * If it were not for PREEMPT_ACTIVE we could guarantee that the
+	 * preempt_count of all tasks was equal here and this would not be
+	 * needed.
+	 */
+	task_thread_info(prev_p)->saved_preempt_count = this_cpu_read(__preempt_count);
+	this_cpu_write(__preempt_count, task_thread_info(next_p)->saved_preempt_count);
+
 	this_cpu_write(kernel_stack,
 		  (unsigned long)task_stack_page(next_p) +
 		  THREAD_SIZE - KERNEL_STACK_OFFSET);
-- 
cgit 


From a4ada6cadb8a2246f263ff6a0d0cca8832f3970e Mon Sep 17 00:00:00 2001
From: Eric Lapuyade <eric.lapuyade@linux.intel.com>
Date: Mon, 23 Sep 2013 18:02:43 +0200
Subject: NFC: NCI: zero struct spi_transfer variables before usage

Using ARM compiler, and without zero-ing spi_transfer, spi-s3c64xx
driver would issue abnormal errors due to bpw field value being set to
unexpected value. This structure MUST be set to all zeros except for
those field specifically used.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 net/nfc/nci/spi.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/net/nfc/nci/spi.c b/net/nfc/nci/spi.c
index 5c2234024774..c111506b36d1 100644
--- a/net/nfc/nci/spi.c
+++ b/net/nfc/nci/spi.c
@@ -44,6 +44,7 @@ static int __nci_spi_send(struct nci_spi *nspi, struct sk_buff *skb)
 	struct spi_message m;
 	struct spi_transfer t;
 
+	memset(&t, 0, sizeof(struct spi_transfer));
 	t.tx_buf = skb->data;
 	t.len = skb->len;
 	t.cs_change = 0;
@@ -173,16 +174,21 @@ static struct sk_buff *__nci_spi_recv_frame(struct nci_spi *nspi)
 	int ret;
 
 	spi_message_init(&m);
+
+	memset(&tx, 0, sizeof(struct spi_transfer));
 	req[0] = NCI_SPI_DIRECT_READ;
 	req[1] = nspi->acknowledge_mode;
 	tx.tx_buf = req;
 	tx.len = 2;
 	tx.cs_change = 0;
 	spi_message_add_tail(&tx, &m);
+
+	memset(&rx, 0, sizeof(struct spi_transfer));
 	rx.rx_buf = resp_hdr;
 	rx.len = 2;
 	rx.cs_change = 1;
 	spi_message_add_tail(&rx, &m);
+
 	ret = spi_sync(nspi->spi, &m);
 
 	if (ret)
@@ -199,11 +205,14 @@ static struct sk_buff *__nci_spi_recv_frame(struct nci_spi *nspi)
 		return NULL;
 
 	spi_message_init(&m);
+
+	memset(&rx, 0, sizeof(struct spi_transfer));
 	rx.rx_buf = skb_put(skb, rx_len);
 	rx.len = rx_len;
 	rx.cs_change = 0;
 	rx.delay_usecs = nspi->xfer_udelay;
 	spi_message_add_tail(&rx, &m);
+
 	ret = spi_sync(nspi->spi, &m);
 
 	if (ret)
-- 
cgit 


From 1a338ac32ca630f67df25b4a16436cccc314e997 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 14 Aug 2013 14:51:00 +0200
Subject: sched, x86: Optimize the preempt_schedule() call

Remove the bloat of the C calling convention out of the
preempt_enable() sites by creating an ASM wrapper which allows us to
do an asm("call ___preempt_schedule") instead.

calling.h bits by Andi Kleen

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-tk7xdi1cvvxewixzke8t8le1@git.kernel.org
[ Fixed build error. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/include/asm/calling.h   | 50 ++++++++++++++++++++++++++++++++++++++++
 arch/x86/include/asm/preempt.h   | 10 ++++++++
 arch/x86/kernel/Makefile         |  2 ++
 arch/x86/kernel/i386_ksyms_32.c  |  7 ++++++
 arch/x86/kernel/preempt.S        | 25 ++++++++++++++++++++
 arch/x86/kernel/x8664_ksyms_64.c |  7 ++++++
 include/asm-generic/preempt.h    | 10 ++++++++
 include/linux/preempt.h          | 13 ++++-------
 8 files changed, 116 insertions(+), 8 deletions(-)
 create mode 100644 arch/x86/kernel/preempt.S

diff --git a/arch/x86/include/asm/calling.h b/arch/x86/include/asm/calling.h
index 0fa675033912..cb4c73bfeb48 100644
--- a/arch/x86/include/asm/calling.h
+++ b/arch/x86/include/asm/calling.h
@@ -48,6 +48,8 @@ For 32-bit we have the following conventions - kernel is built with
 
 #include <asm/dwarf2.h>
 
+#ifdef CONFIG_X86_64
+
 /*
  * 64-bit system call stack frame layout defines and helpers,
  * for assembly code:
@@ -192,3 +194,51 @@ For 32-bit we have the following conventions - kernel is built with
 	.macro icebp
 	.byte 0xf1
 	.endm
+
+#else /* CONFIG_X86_64 */
+
+/*
+ * For 32bit only simplified versions of SAVE_ALL/RESTORE_ALL. These
+ * are different from the entry_32.S versions in not changing the segment
+ * registers. So only suitable for in kernel use, not when transitioning
+ * from or to user space. The resulting stack frame is not a standard
+ * pt_regs frame. The main use case is calling C code from assembler
+ * when all the registers need to be preserved.
+ */
+
+	.macro SAVE_ALL
+	pushl_cfi %eax
+	CFI_REL_OFFSET eax, 0
+	pushl_cfi %ebp
+	CFI_REL_OFFSET ebp, 0
+	pushl_cfi %edi
+	CFI_REL_OFFSET edi, 0
+	pushl_cfi %esi
+	CFI_REL_OFFSET esi, 0
+	pushl_cfi %edx
+	CFI_REL_OFFSET edx, 0
+	pushl_cfi %ecx
+	CFI_REL_OFFSET ecx, 0
+	pushl_cfi %ebx
+	CFI_REL_OFFSET ebx, 0
+	.endm
+
+	.macro RESTORE_ALL
+	popl_cfi %ebx
+	CFI_RESTORE ebx
+	popl_cfi %ecx
+	CFI_RESTORE ecx
+	popl_cfi %edx
+	CFI_RESTORE edx
+	popl_cfi %esi
+	CFI_RESTORE esi
+	popl_cfi %edi
+	CFI_RESTORE edi
+	popl_cfi %ebp
+	CFI_RESTORE ebp
+	popl_cfi %eax
+	CFI_RESTORE eax
+	.endm
+
+#endif /* CONFIG_X86_64 */
+
diff --git a/arch/x86/include/asm/preempt.h b/arch/x86/include/asm/preempt.h
index 1309942b95e5..1de41690ff99 100644
--- a/arch/x86/include/asm/preempt.h
+++ b/arch/x86/include/asm/preempt.h
@@ -95,4 +95,14 @@ static __always_inline bool should_resched(void)
 	return unlikely(!__this_cpu_read_4(__preempt_count));
 }
 
+#ifdef CONFIG_PREEMPT
+  extern asmlinkage void ___preempt_schedule(void);
+# define __preempt_schedule() asm ("call ___preempt_schedule")
+  extern asmlinkage void preempt_schedule(void);
+# ifdef CONFIG_CONTEXT_TRACKING
+    extern asmlinkage void ___preempt_schedule_context(void);
+#   define __preempt_schedule_context() asm ("call ___preempt_schedule_context")
+# endif
+#endif
+
 #endif /* __ASM_PREEMPT_H */
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index a5408b965c9d..9b0a34e2cd79 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -36,6 +36,8 @@ obj-y			+= tsc.o io_delay.o rtc.o
 obj-y			+= pci-iommu_table.o
 obj-y			+= resource.o
 
+obj-$(CONFIG_PREEMPT)	+= preempt.o
+
 obj-y				+= process.o
 obj-y				+= i387.o xsave.o
 obj-y				+= ptrace.o
diff --git a/arch/x86/kernel/i386_ksyms_32.c b/arch/x86/kernel/i386_ksyms_32.c
index 0fa69127209a..05fd74f537d6 100644
--- a/arch/x86/kernel/i386_ksyms_32.c
+++ b/arch/x86/kernel/i386_ksyms_32.c
@@ -37,3 +37,10 @@ EXPORT_SYMBOL(strstr);
 
 EXPORT_SYMBOL(csum_partial);
 EXPORT_SYMBOL(empty_zero_page);
+
+#ifdef CONFIG_PREEMPT
+EXPORT_SYMBOL(___preempt_schedule);
+#ifdef CONFIG_CONTEXT_TRACKING
+EXPORT_SYMBOL(___preempt_schedule_context);
+#endif
+#endif
diff --git a/arch/x86/kernel/preempt.S b/arch/x86/kernel/preempt.S
new file mode 100644
index 000000000000..ca7f0d58a87d
--- /dev/null
+++ b/arch/x86/kernel/preempt.S
@@ -0,0 +1,25 @@
+
+#include <linux/linkage.h>
+#include <asm/dwarf2.h>
+#include <asm/asm.h>
+#include <asm/calling.h>
+
+ENTRY(___preempt_schedule)
+	CFI_STARTPROC
+	SAVE_ALL
+	call preempt_schedule
+	RESTORE_ALL
+	ret
+	CFI_ENDPROC
+
+#ifdef CONFIG_CONTEXT_TRACKING
+
+ENTRY(___preempt_schedule_context)
+	CFI_STARTPROC
+	SAVE_ALL
+	call preempt_schedule_context
+	RESTORE_ALL
+	ret
+	CFI_ENDPROC
+
+#endif
diff --git a/arch/x86/kernel/x8664_ksyms_64.c b/arch/x86/kernel/x8664_ksyms_64.c
index b014d9414d08..040681928e9d 100644
--- a/arch/x86/kernel/x8664_ksyms_64.c
+++ b/arch/x86/kernel/x8664_ksyms_64.c
@@ -66,3 +66,10 @@ EXPORT_SYMBOL(empty_zero_page);
 #ifndef CONFIG_PARAVIRT
 EXPORT_SYMBOL(native_load_gs_index);
 #endif
+
+#ifdef CONFIG_PREEMPT
+EXPORT_SYMBOL(___preempt_schedule);
+#ifdef CONFIG_CONTEXT_TRACKING
+EXPORT_SYMBOL(___preempt_schedule_context);
+#endif
+#endif
diff --git a/include/asm-generic/preempt.h b/include/asm-generic/preempt.h
index 82d958fc3823..5dc14ed3791c 100644
--- a/include/asm-generic/preempt.h
+++ b/include/asm-generic/preempt.h
@@ -100,4 +100,14 @@ static __always_inline bool should_resched(void)
 	return unlikely(!*preempt_count_ptr());
 }
 
+#ifdef CONFIG_PREEMPT
+extern asmlinkage void preempt_schedule(void);
+#define __preempt_schedule() preempt_schedule()
+
+#ifdef CONFIG_CONTEXT_TRACKING
+extern asmlinkage void preempt_schedule_context(void);
+#define __preempt_schedule_context() preempt_schedule_context()
+#endif
+#endif /* CONFIG_PREEMPT */
+
 #endif /* __ASM_PREEMPT_H */
diff --git a/include/linux/preempt.h b/include/linux/preempt.h
index 2343d8715299..a3d9dc8c2c00 100644
--- a/include/linux/preempt.h
+++ b/include/linux/preempt.h
@@ -50,18 +50,17 @@ do { \
 #define preempt_enable_no_resched() sched_preempt_enable_no_resched()
 
 #ifdef CONFIG_PREEMPT
-asmlinkage void preempt_schedule(void);
 #define preempt_enable() \
 do { \
 	barrier(); \
 	if (unlikely(preempt_count_dec_and_test())) \
-		preempt_schedule(); \
+		__preempt_schedule(); \
 } while (0)
 
 #define preempt_check_resched() \
 do { \
 	if (should_resched()) \
-		preempt_schedule(); \
+		__preempt_schedule(); \
 } while (0)
 
 #else
@@ -83,17 +82,15 @@ do { \
 
 #ifdef CONFIG_PREEMPT
 
-#ifdef CONFIG_CONTEXT_TRACKING
-asmlinkage void preempt_schedule_context(void);
-#else
-#define preempt_schedule_context() preempt_schedule()
+#ifndef CONFIG_CONTEXT_TRACKING
+#define __preempt_schedule_context() __preempt_schedule()
 #endif
 
 #define preempt_enable_notrace() \
 do { \
 	barrier(); \
 	if (unlikely(__preempt_count_dec_and_test())) \
-		preempt_schedule_context(); \
+		__preempt_schedule_context(); \
 } while (0)
 #else
 #define preempt_enable_notrace() preempt_enable_no_resched_notrace()
-- 
cgit 


From 22d4aae5897fb8355130b8f7d9a3af153eac9714 Mon Sep 17 00:00:00 2001
From: Eric Lapuyade <eric.lapuyade@linux.intel.com>
Date: Mon, 23 Sep 2013 17:56:31 +0200
Subject: NFC: NCI: nci_spi_recv_frame() now returns (not forward) the read
 frame

Previously, nci_spi_recv_frame() would directly transmit incoming frames
to the NCI Core. However, it turns out that some NFC NCI Chips will add
additional proprietary headers that must be handled/removed before NCI
Core gets a chance to handle the frame. With this modification, the chip
phy or driver are now responsible to transmit incoming frames to NCI
Core after proper treatment, and NCI SPI becomes a driver helper instead
of sitting between the NFC driver and NCI Core.

As a general rule in NFC, *_recv_frame() APIs are used to deliver an
incoming frame to an upper layer. To better suit the actual purpose of
nci_spi_recv_frame(), and go along with its nci_spi_send()
counterpart, the function is renamed to nci_spi_read()

The skb is returned as the function result

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 include/net/nfc/nci_core.h |  2 +-
 net/nfc/nci/spi.c          | 26 ++++++++++----------------
 2 files changed, 11 insertions(+), 17 deletions(-)

diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 37ba06f2dfa9..1d505317dc67 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -233,6 +233,6 @@ struct nci_spi *nci_spi_allocate_spi(struct spi_device *spi,
 				     u8 acknowledge_mode, unsigned int delay,
 				     struct nci_dev *ndev);
 int nci_spi_send(struct nci_spi *nspi, struct sk_buff *skb);
-int nci_spi_recv_frame(struct nci_spi *nspi);
+struct sk_buff *nci_spi_read(struct nci_spi *nspi);
 
 #endif /* __NCI_CORE_H */
diff --git a/net/nfc/nci/spi.c b/net/nfc/nci/spi.c
index c111506b36d1..734c6dde7751 100644
--- a/net/nfc/nci/spi.c
+++ b/net/nfc/nci/spi.c
@@ -21,7 +21,6 @@
 #include <linux/export.h>
 #include <linux/spi/spi.h>
 #include <linux/crc-ccitt.h>
-#include <linux/nfc.h>
 #include <net/nfc/nci_core.h>
 
 #define NCI_SPI_ACK_SHIFT		6
@@ -164,7 +163,7 @@ static int send_acknowledge(struct nci_spi *nspi, u8 acknowledge)
 	return ret;
 }
 
-static struct sk_buff *__nci_spi_recv_frame(struct nci_spi *nspi)
+static struct sk_buff *__nci_spi_read(struct nci_spi *nspi)
 {
 	struct sk_buff *skb;
 	struct spi_message m;
@@ -258,7 +257,7 @@ static u8 nci_spi_get_ack(struct sk_buff *skb)
 }
 
 /**
- * nci_spi_recv_frame - receive frame from NCI SPI drivers
+ * nci_spi_read - read frame from NCI SPI drivers
  *
  * @nspi: The nci spi
  * Context: can sleep
@@ -266,21 +265,18 @@ static u8 nci_spi_get_ack(struct sk_buff *skb)
  * This call may only be used from a context that may sleep.  The sleep
  * is non-interruptible, and has no timeout.
  *
- * It returns zero on success, else a negative error code.
+ * It returns an allocated skb containing the frame on success, or NULL.
  */
-int nci_spi_recv_frame(struct nci_spi *nspi)
+struct sk_buff *nci_spi_read(struct nci_spi *nspi)
 {
 	struct sk_buff *skb;
-	int ret = 0;
 
 	nspi->ops->deassert_int(nspi);
 
 	/* Retrieve frame from SPI */
-	skb = __nci_spi_recv_frame(nspi);
-	if (!skb) {
-		ret = -EIO;
+	skb = __nci_spi_read(nspi);
+	if (!skb)
 		goto done;
-	}
 
 	if (nspi->acknowledge_mode == NCI_SPI_CRC_ENABLED) {
 		if (!nci_spi_check_crc(skb)) {
@@ -299,20 +295,18 @@ int nci_spi_recv_frame(struct nci_spi *nspi)
 	/* If there is no payload (ACK/NACK only frame),
 	 * free the socket buffer
 	 */
-	if (skb->len == 0) {
+	if (!skb->len) {
 		kfree_skb(skb);
+		skb = NULL;
 		goto done;
 	}
 
 	if (nspi->acknowledge_mode == NCI_SPI_CRC_ENABLED)
 		send_acknowledge(nspi, ACKNOWLEDGE_ACK);
 
-	/* Forward skb to NCI core layer */
-	ret = nci_recv_frame(nspi->ndev, skb);
-
 done:
 	nspi->ops->assert_int(nspi);
 
-	return ret;
+	return skb;
 }
-EXPORT_SYMBOL_GPL(nci_spi_recv_frame);
+EXPORT_SYMBOL_GPL(nci_spi_read);
-- 
cgit 


From 806955dd9cf071ecd99acbaa8c73ae1f34dcf83d Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 25 Sep 2013 13:10:33 +0100
Subject: ASoC: tlv320aic26: Convert to table based control init

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/tlv320aic26.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic26.c b/sound/soc/codecs/tlv320aic26.c
index 7b8f3d965f43..32c6b0768e56 100644
--- a/sound/soc/codecs/tlv320aic26.c
+++ b/sound/soc/codecs/tlv320aic26.c
@@ -377,7 +377,7 @@ static DEVICE_ATTR(keyclick, 0644, aic26_keyclick_show, aic26_keyclick_set);
 static int aic26_probe(struct snd_soc_codec *codec)
 {
 	struct aic26 *aic26 = dev_get_drvdata(codec->dev);
-	int ret, err, i, reg;
+	int ret, i, reg;
 
 	aic26->codec = codec;
 
@@ -403,12 +403,6 @@ static int aic26_probe(struct snd_soc_codec *codec)
 	if (ret)
 		dev_info(codec->dev, "error creating sysfs files\n");
 
-	/* register controls */
-	dev_dbg(codec->dev, "Registering controls\n");
-	err = snd_soc_add_codec_controls(codec, aic26_snd_controls,
-			ARRAY_SIZE(aic26_snd_controls));
-	WARN_ON(err < 0);
-
 	return 0;
 }
 
@@ -418,6 +412,8 @@ static struct snd_soc_codec_driver aic26_soc_codec_dev = {
 	.write = aic26_reg_write,
 	.reg_cache_size = AIC26_NUM_REGS,
 	.reg_word_size = sizeof(u16),
+	.controls = aic26_snd_controls,
+	.num_controls = ARRAY_SIZE(aic26_snd_controls),
 	.dapm_widgets = tlv320aic26_dapm_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(tlv320aic26_dapm_widgets),
 	.dapm_routes = tlv320aic26_dapm_routes,
-- 
cgit 


From 5b0959d472c215e6d712ac47e64110bd125ddd07 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 25 Sep 2013 13:14:41 +0100
Subject: ASoC: tlv320aic26: Use snd_soc_update_bits()

Use snd_soc_update_bits() rather than open coding. Since the register cache
is currently only used where update_bits() is used this means the current
register cache can be removed entirely.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/tlv320aic26.c | 51 +++++++++++-------------------------------
 1 file changed, 13 insertions(+), 38 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic26.c b/sound/soc/codecs/tlv320aic26.c
index 32c6b0768e56..4d8244750f23 100644
--- a/sound/soc/codecs/tlv320aic26.c
+++ b/sound/soc/codecs/tlv320aic26.c
@@ -74,19 +74,6 @@ static unsigned int aic26_reg_read(struct snd_soc_codec *codec,
 	return value;
 }
 
-static unsigned int aic26_reg_read_cache(struct snd_soc_codec *codec,
-					 unsigned int reg)
-{
-	u16 *cache = codec->reg_cache;
-
-	if (reg >= AIC26_NUM_REGS) {
-		WARN_ON_ONCE(1);
-		return 0;
-	}
-
-	return cache[reg];
-}
-
 static int aic26_reg_write(struct snd_soc_codec *codec, unsigned int reg,
 			   unsigned int value)
 {
@@ -195,19 +182,15 @@ static int aic26_hw_params(struct snd_pcm_substream *substream,
 	snd_soc_write(codec, AIC26_REG_PLL_PROG2, reg);
 
 	/* Audio Control 3 (master mode, fsref rate) */
-	reg = aic26_reg_read_cache(codec, AIC26_REG_AUDIO_CTRL3);
-	reg &= ~0xf800;
 	if (aic26->master)
-		reg |= 0x0800;
+		reg = 0x0800;
 	if (fsref == 48000)
-		reg |= 0x2000;
-	snd_soc_write(codec, AIC26_REG_AUDIO_CTRL3, reg);
+		reg = 0x2000;
+	snd_soc_update_bits(codec, AIC26_REG_AUDIO_CTRL3, 0xf800, reg);
 
 	/* Audio Control 1 (FSref divisor) */
-	reg = aic26_reg_read_cache(codec, AIC26_REG_AUDIO_CTRL1);
-	reg &= ~0x0fff;
-	reg |= wlen | aic26->datfm | (divisor << 3) | divisor;
-	snd_soc_write(codec, AIC26_REG_AUDIO_CTRL1, reg);
+	reg = wlen | aic26->datfm | (divisor << 3) | divisor;
+	snd_soc_update_bits(codec, AIC26_REG_AUDIO_CTRL1, 0xfff, reg);
 
 	return 0;
 }
@@ -219,16 +202,16 @@ static int aic26_mute(struct snd_soc_dai *dai, int mute)
 {
 	struct snd_soc_codec *codec = dai->codec;
 	struct aic26 *aic26 = snd_soc_codec_get_drvdata(codec);
-	u16 reg = aic26_reg_read_cache(codec, AIC26_REG_DAC_GAIN);
+	u16 reg;
 
 	dev_dbg(&aic26->spi->dev, "aic26_mute(dai=%p, mute=%i)\n",
 		dai, mute);
 
 	if (mute)
-		reg |= 0x8080;
+		reg = 0x8080;
 	else
-		reg &= ~0x8080;
-	snd_soc_write(codec, AIC26_REG_DAC_GAIN, reg);
+		reg = 0;
+	snd_soc_update_bits(codec, AIC26_REG_DAC_GAIN, 0x8000, reg);
 
 	return 0;
 }
@@ -346,7 +329,7 @@ static ssize_t aic26_keyclick_show(struct device *dev,
 	struct aic26 *aic26 = dev_get_drvdata(dev);
 	int val, amp, freq, len;
 
-	val = aic26_reg_read_cache(aic26->codec, AIC26_REG_AUDIO_CTRL2);
+	val = snd_soc_read(aic26->codec, AIC26_REG_AUDIO_CTRL2);
 	amp = (val >> 12) & 0x7;
 	freq = (125 << ((val >> 8) & 0x7)) >> 1;
 	len = 2 * (1 + ((val >> 4) & 0xf));
@@ -360,11 +343,9 @@ static ssize_t aic26_keyclick_set(struct device *dev,
 				  const char *buf, size_t count)
 {
 	struct aic26 *aic26 = dev_get_drvdata(dev);
-	int val;
 
-	val = aic26_reg_read_cache(aic26->codec, AIC26_REG_AUDIO_CTRL2);
-	val |= 0x8000;
-	snd_soc_write(aic26->codec, AIC26_REG_AUDIO_CTRL2, val);
+	snd_soc_update_bits(aic26->codec, AIC26_REG_AUDIO_CTRL2,
+			    0x8000, 0x800);
 
 	return count;
 }
@@ -377,7 +358,7 @@ static DEVICE_ATTR(keyclick, 0644, aic26_keyclick_show, aic26_keyclick_set);
 static int aic26_probe(struct snd_soc_codec *codec)
 {
 	struct aic26 *aic26 = dev_get_drvdata(codec->dev);
-	int ret, i, reg;
+	int ret, reg;
 
 	aic26->codec = codec;
 
@@ -393,10 +374,6 @@ static int aic26_probe(struct snd_soc_codec *codec)
 	reg |= 0x0800; /* set master mode */
 	snd_soc_write(codec, AIC26_REG_AUDIO_CTRL3, reg);
 
-	/* Fill register cache */
-	for (i = 0; i < codec->driver->reg_cache_size; i++)
-		snd_soc_read(codec, i);
-
 	/* Register the sysfs files for debugging */
 	/* Create SysFS files */
 	ret = device_create_file(codec->dev, &dev_attr_keyclick);
@@ -410,8 +387,6 @@ static struct snd_soc_codec_driver aic26_soc_codec_dev = {
 	.probe = aic26_probe,
 	.read = aic26_reg_read,
 	.write = aic26_reg_write,
-	.reg_cache_size = AIC26_NUM_REGS,
-	.reg_word_size = sizeof(u16),
 	.controls = aic26_snd_controls,
 	.num_controls = ARRAY_SIZE(aic26_snd_controls),
 	.dapm_widgets = tlv320aic26_dapm_widgets,
-- 
cgit 


From 7fbdeb809050cb958f3baa83dcc643f9a2f287f2 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 25 Sep 2013 13:29:44 +0100
Subject: ASoC: tlv320aic26: Convert to direct regmap API usage

This moves us towards being able to remove the duplicated register I/O
code in ASoC.

The datasheet and the driver document the device as having a register map
divided into pages but since the paging is actually done by sending the
page address and the register address with each transaction this is no
different to having a simple register address. The datasheet does also
document the low five bits of the 16 bit "command" as unused which we could
represent as padding but it seems simpler and less confusing to things
that use block transfers or autoincrement to represent these as part of
the register address.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/tlv320aic26.c | 80 +++++++-----------------------------------
 sound/soc/codecs/tlv320aic26.h |  5 +--
 2 files changed, 13 insertions(+), 72 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic26.c b/sound/soc/codecs/tlv320aic26.c
index 4d8244750f23..94a658fa6d97 100644
--- a/sound/soc/codecs/tlv320aic26.c
+++ b/sound/soc/codecs/tlv320aic26.c
@@ -29,6 +29,7 @@ MODULE_LICENSE("GPL");
 /* AIC26 driver private data */
 struct aic26 {
 	struct spi_device *spi;
+	struct regmap *regmap;
 	struct snd_soc_codec *codec;
 	int master;
 	int datfm;
@@ -40,72 +41,6 @@ struct aic26 {
 	int keyclick_len;
 };
 
-/* ---------------------------------------------------------------------
- * Register access routines
- */
-static unsigned int aic26_reg_read(struct snd_soc_codec *codec,
-				   unsigned int reg)
-{
-	struct aic26 *aic26 = snd_soc_codec_get_drvdata(codec);
-	u16 *cache = codec->reg_cache;
-	u16 cmd, value;
-	u8 buffer[2];
-	int rc;
-
-	if (reg >= AIC26_NUM_REGS) {
-		WARN_ON_ONCE(1);
-		return 0;
-	}
-
-	/* Do SPI transfer; first 16bits are command; remaining is
-	 * register contents */
-	cmd = AIC26_READ_COMMAND_WORD(reg);
-	buffer[0] = (cmd >> 8) & 0xff;
-	buffer[1] = cmd & 0xff;
-	rc = spi_write_then_read(aic26->spi, buffer, 2, buffer, 2);
-	if (rc) {
-		dev_err(&aic26->spi->dev, "AIC26 reg read error\n");
-		return -EIO;
-	}
-	value = (buffer[0] << 8) | buffer[1];
-
-	/* Update the cache before returning with the value */
-	cache[reg] = value;
-	return value;
-}
-
-static int aic26_reg_write(struct snd_soc_codec *codec, unsigned int reg,
-			   unsigned int value)
-{
-	struct aic26 *aic26 = snd_soc_codec_get_drvdata(codec);
-	u16 *cache = codec->reg_cache;
-	u16 cmd;
-	u8 buffer[4];
-	int rc;
-
-	if (reg >= AIC26_NUM_REGS) {
-		WARN_ON_ONCE(1);
-		return -EINVAL;
-	}
-
-	/* Do SPI transfer; first 16bits are command; remaining is data
-	 * to write into register */
-	cmd = AIC26_WRITE_COMMAND_WORD(reg);
-	buffer[0] = (cmd >> 8) & 0xff;
-	buffer[1] = cmd & 0xff;
-	buffer[2] = value >> 8;
-	buffer[3] = value;
-	rc = spi_write(aic26->spi, buffer, 4);
-	if (rc) {
-		dev_err(&aic26->spi->dev, "AIC26 reg read error\n");
-		return -EIO;
-	}
-
-	/* update cache before returning */
-	cache[reg] = value;
-	return 0;
-}
-
 static const struct snd_soc_dapm_widget tlv320aic26_dapm_widgets[] = {
 SND_SOC_DAPM_INPUT("MICIN"),
 SND_SOC_DAPM_INPUT("AUX"),
@@ -360,6 +295,8 @@ static int aic26_probe(struct snd_soc_codec *codec)
 	struct aic26 *aic26 = dev_get_drvdata(codec->dev);
 	int ret, reg;
 
+	snd_soc_codec_set_cache_io(codec, 16, 16, SND_SOC_REGMAP);
+
 	aic26->codec = codec;
 
 	/* Reset the codec to power on defaults */
@@ -385,8 +322,6 @@ static int aic26_probe(struct snd_soc_codec *codec)
 
 static struct snd_soc_codec_driver aic26_soc_codec_dev = {
 	.probe = aic26_probe,
-	.read = aic26_reg_read,
-	.write = aic26_reg_write,
 	.controls = aic26_snd_controls,
 	.num_controls = ARRAY_SIZE(aic26_snd_controls),
 	.dapm_widgets = tlv320aic26_dapm_widgets,
@@ -395,6 +330,11 @@ static struct snd_soc_codec_driver aic26_soc_codec_dev = {
 	.num_dapm_routes = ARRAY_SIZE(tlv320aic26_dapm_routes),
 };
 
+static const struct regmap_config aic26_regmap = {
+	.reg_bits = 16,
+	.val_bits = 16,
+};
+
 /* ---------------------------------------------------------------------
  * SPI device portion of driver: probe and release routines and SPI
  * 				 driver registration.
@@ -411,6 +351,10 @@ static int aic26_spi_probe(struct spi_device *spi)
 	if (!aic26)
 		return -ENOMEM;
 
+	aic26->regmap = devm_regmap_init_spi(spi, &aic26_regmap);
+	if (IS_ERR(aic26->regmap))
+		return PTR_ERR(aic26->regmap);
+
 	/* Initialize the driver data */
 	aic26->spi = spi;
 	dev_set_drvdata(&spi->dev, aic26);
diff --git a/sound/soc/codecs/tlv320aic26.h b/sound/soc/codecs/tlv320aic26.h
index 67f19c3bebe6..629b85e75409 100644
--- a/sound/soc/codecs/tlv320aic26.h
+++ b/sound/soc/codecs/tlv320aic26.h
@@ -9,10 +9,7 @@
 #define _TLV320AIC16_H_
 
 /* AIC26 Registers */
-#define AIC26_READ_COMMAND_WORD(addr)	((1 << 15) | (addr << 5))
-#define AIC26_WRITE_COMMAND_WORD(addr)	((0 << 15) | (addr << 5))
-#define AIC26_PAGE_ADDR(page, offset)	((page << 6) | offset)
-#define AIC26_NUM_REGS			AIC26_PAGE_ADDR(3, 0)
+#define AIC26_PAGE_ADDR(page, offset)	((page << 11) | offset << 5)
 
 /* Page 0: Auxiliary data registers */
 #define AIC26_REG_BAT1			AIC26_PAGE_ADDR(0, 0x05)
-- 
cgit 


From c29c2d4e6ba4f8f5868a4c6dd75a4c23e1993721 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 23 Sep 2013 19:14:31 +0100
Subject: mfd: mc13xxx: Don't require lock for simple register I/O

Since the conversion to regmap there has been no need for device level
locking for I/O as regmap provides locking so remove the locks.

Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/mc13xxx-core.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c
index 2a9b100c4825..dbbf8ee3f592 100644
--- a/drivers/mfd/mc13xxx-core.c
+++ b/drivers/mfd/mc13xxx-core.c
@@ -158,8 +158,6 @@ int mc13xxx_reg_read(struct mc13xxx *mc13xxx, unsigned int offset, u32 *val)
 {
 	int ret;
 
-	BUG_ON(!mutex_is_locked(&mc13xxx->lock));
-
 	if (offset > MC13XXX_NUMREGS)
 		return -EINVAL;
 
@@ -172,8 +170,6 @@ EXPORT_SYMBOL(mc13xxx_reg_read);
 
 int mc13xxx_reg_write(struct mc13xxx *mc13xxx, unsigned int offset, u32 val)
 {
-	BUG_ON(!mutex_is_locked(&mc13xxx->lock));
-
 	dev_vdbg(mc13xxx->dev, "[0x%02x] <- 0x%06x\n", offset, val);
 
 	if (offset > MC13XXX_NUMREGS || val > 0xffffff)
@@ -186,7 +182,6 @@ EXPORT_SYMBOL(mc13xxx_reg_write);
 int mc13xxx_reg_rmw(struct mc13xxx *mc13xxx, unsigned int offset,
 		u32 mask, u32 val)
 {
-	BUG_ON(!mutex_is_locked(&mc13xxx->lock));
 	BUG_ON(val & ~mask);
 	dev_vdbg(mc13xxx->dev, "[0x%02x] <- 0x%06x (mask: 0x%06x)\n",
 			offset, val, mask);
-- 
cgit 


From fd792f8fbcfa95674b6c417429f576ad1d808086 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 23 Sep 2013 19:14:32 +0100
Subject: mfd: mc13xxx: Move SPI erratum workaround into SPI I/O function

Move the workaround for double sending AUDIO_CODEC and AUDIO_DAC writes
into the SPI core, aiding refactoring to eliminate the ASoC custom I/O
functions and avoiding the extra writes for I2C.

Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/mc13xxx-spi.c   | 5 +++++
 include/linux/mfd/mc13xxx.h | 7 +++++++
 sound/soc/codecs/mc13783.c  | 4 ----
 3 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/mfd/mc13xxx-spi.c b/drivers/mfd/mc13xxx-spi.c
index 77189daadf1e..5f14ef6693c2 100644
--- a/drivers/mfd/mc13xxx-spi.c
+++ b/drivers/mfd/mc13xxx-spi.c
@@ -94,10 +94,15 @@ static int mc13xxx_spi_write(void *context, const void *data, size_t count)
 {
 	struct device *dev = context;
 	struct spi_device *spi = to_spi_device(dev);
+	const char *reg = data;
 
 	if (count != 4)
 		return -ENOTSUPP;
 
+	/* include errata fix for spi audio problems */
+	if (*reg == MC13783_AUDIO_CODEC || *reg == MC13783_AUDIO_DAC)
+		spi_write(spi, data, count);
+
 	return spi_write(spi, data, count);
 }
 
diff --git a/include/linux/mfd/mc13xxx.h b/include/linux/mfd/mc13xxx.h
index 41ed59276c00..67c17b5a6f44 100644
--- a/include/linux/mfd/mc13xxx.h
+++ b/include/linux/mfd/mc13xxx.h
@@ -41,6 +41,13 @@ int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx,
 		unsigned int mode, unsigned int channel,
 		u8 ato, bool atox, unsigned int *sample);
 
+#define MC13783_AUDIO_RX0	36
+#define MC13783_AUDIO_RX1	37
+#define MC13783_AUDIO_TX	38
+#define MC13783_SSI_NETWORK	39
+#define MC13783_AUDIO_CODEC	40
+#define MC13783_AUDIO_DAC	41
+
 #define MC13XXX_IRQ_ADCDONE	0
 #define MC13XXX_IRQ_ADCBISDONE	1
 #define MC13XXX_IRQ_TS		2
diff --git a/sound/soc/codecs/mc13783.c b/sound/soc/codecs/mc13783.c
index ea141e1d6f28..4d3c8fd8c5db 100644
--- a/sound/soc/codecs/mc13783.c
+++ b/sound/soc/codecs/mc13783.c
@@ -125,10 +125,6 @@ static int mc13783_write(struct snd_soc_codec *codec,
 
 	ret = mc13xxx_reg_write(priv->mc13xxx, reg, value);
 
-	/* include errata fix for spi audio problems */
-	if (reg == MC13783_AUDIO_CODEC || reg == MC13783_AUDIO_DAC)
-		ret = mc13xxx_reg_write(priv->mc13xxx, reg, value);
-
 	mc13xxx_unlock(priv->mc13xxx);
 
 	return ret;
-- 
cgit 


From 2d9215c1ecd6f133952bc081a288dbb180816290 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 18 Sep 2013 19:04:17 +0100
Subject: ASoC: mc13783: Use regmap directly from ASoC

As part of a push to remove the register I/O functionality from ASoC (since
it is now duplicated in the regmap API) convert the mc13783 driver to use
regmap directly.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/mc13783.c | 55 ++++++++--------------------------------------
 1 file changed, 9 insertions(+), 46 deletions(-)

diff --git a/sound/soc/codecs/mc13783.c b/sound/soc/codecs/mc13783.c
index 4d3c8fd8c5db..eedbf05b8e96 100644
--- a/sound/soc/codecs/mc13783.c
+++ b/sound/soc/codecs/mc13783.c
@@ -30,16 +30,10 @@
 #include <sound/soc.h>
 #include <sound/initval.h>
 #include <sound/soc-dapm.h>
+#include <linux/regmap.h>
 
 #include "mc13783.h"
 
-#define MC13783_AUDIO_RX0	36
-#define MC13783_AUDIO_RX1	37
-#define MC13783_AUDIO_TX	38
-#define MC13783_SSI_NETWORK	39
-#define MC13783_AUDIO_CODEC	40
-#define MC13783_AUDIO_DAC	41
-
 #define AUDIO_RX0_ALSPEN		(1 << 5)
 #define AUDIO_RX0_ALSPSEL		(1 << 7)
 #define AUDIO_RX0_ADDCDC		(1 << 21)
@@ -95,41 +89,12 @@
 
 struct mc13783_priv {
 	struct mc13xxx *mc13xxx;
+	struct regmap *regmap;
 
 	enum mc13783_ssi_port adc_ssi_port;
 	enum mc13783_ssi_port dac_ssi_port;
 };
 
-static unsigned int mc13783_read(struct snd_soc_codec *codec,
-	unsigned int reg)
-{
-	struct mc13783_priv *priv = snd_soc_codec_get_drvdata(codec);
-	unsigned int value = 0;
-
-	mc13xxx_lock(priv->mc13xxx);
-
-	mc13xxx_reg_read(priv->mc13xxx, reg, &value);
-
-	mc13xxx_unlock(priv->mc13xxx);
-
-	return value;
-}
-
-static int mc13783_write(struct snd_soc_codec *codec,
-	unsigned int reg, unsigned int value)
-{
-	struct mc13783_priv *priv = snd_soc_codec_get_drvdata(codec);
-	int ret;
-
-	mc13xxx_lock(priv->mc13xxx);
-
-	ret = mc13xxx_reg_write(priv->mc13xxx, reg, value);
-
-	mc13xxx_unlock(priv->mc13xxx);
-
-	return ret;
-}
-
 /* Mapping between sample rates and register value */
 static unsigned int mc13783_rates[] = {
 	8000, 11025, 12000, 16000,
@@ -583,8 +548,14 @@ static struct snd_kcontrol_new mc13783_control_list[] = {
 static int mc13783_probe(struct snd_soc_codec *codec)
 {
 	struct mc13783_priv *priv = snd_soc_codec_get_drvdata(codec);
+	int ret;
 
-	mc13xxx_lock(priv->mc13xxx);
+	codec->control_data = dev_get_regmap(codec->dev->parent, NULL);
+	ret = snd_soc_codec_set_cache_io(codec, 8, 24, SND_SOC_REGMAP);
+	if (ret != 0) {
+		dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
+		return ret;
+	}
 
 	/* these are the reset values */
 	mc13xxx_reg_write(priv->mc13xxx, MC13783_AUDIO_RX0, 0x25893);
@@ -608,8 +579,6 @@ static int mc13783_probe(struct snd_soc_codec *codec)
 		mc13xxx_reg_rmw(priv->mc13xxx, MC13783_AUDIO_DAC,
 				0, AUDIO_SSI_SEL);
 
-	mc13xxx_unlock(priv->mc13xxx);
-
 	return 0;
 }
 
@@ -617,13 +586,9 @@ static int mc13783_remove(struct snd_soc_codec *codec)
 {
 	struct mc13783_priv *priv = snd_soc_codec_get_drvdata(codec);
 
-	mc13xxx_lock(priv->mc13xxx);
-
 	/* Make sure VAUDIOON is off */
 	mc13xxx_reg_rmw(priv->mc13xxx, MC13783_AUDIO_RX0, 0x3, 0);
 
-	mc13xxx_unlock(priv->mc13xxx);
-
 	return 0;
 }
 
@@ -713,8 +678,6 @@ static struct snd_soc_dai_driver mc13783_dai_sync[] = {
 static struct snd_soc_codec_driver soc_codec_dev_mc13783 = {
 	.probe		= mc13783_probe,
 	.remove		= mc13783_remove,
-	.read		= mc13783_read,
-	.write		= mc13783_write,
 	.controls	= mc13783_control_list,
 	.num_controls	= ARRAY_SIZE(mc13783_control_list),
 	.dapm_widgets	= mc13783_dapm_widgets,
-- 
cgit 


From 2bed27851767d93b5d2823eee110857f350a9fbe Mon Sep 17 00:00:00 2001
From: Eric Lapuyade <eric.lapuyade@linux.intel.com>
Date: Mon, 23 Sep 2013 17:56:43 +0200
Subject: NFC: NCI: Modify NCI SPI to implement CS/INT handshake per the spec
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The NFC Forum NCI specification defines both a hardware and software
protocol when using a SPI physical transport to connect an NFC NCI
Chipset. The hardware requirement is that, after having raised the chip
select line, the SPI driver must wait for an INT line from the NFC
chipset to raise before it sends the data. The chip select must be
raised first though, because this is the signal that the NFC chipset
will detect to wake up and then raise its INT line. If the INT line
doesn't raise in a timely fashion, the SPI driver should abort
operation.

When data is transferred from Device host (DH) to NFC Controller (NFCC),
the signaling sequence is the following:

Data Transfer from DH to NFCC
• 1-Master asserts SPI_CSN
• 2-Slave asserts SPI_INT
• 3-Master sends NCI-over-SPI protocol header and payload data
• 4-Slave deasserts SPI_INT
• 5-Master deasserts SPI_CSN

When data must be transferred from NFCC to DH, things are a little bit
different.

Data Transfer from NFCC to DH
• 1-Slave asserts SPI_INT -> NFC chipset irq handler called -> process
reading from SPI
• 2-Master asserts SPI_CSN
• 3-Master send 2-octet NCI-over-SPI protocol header
• 4-Slave sends 2-octet NCI-over-SPI protocol payload length
• 5-Slave sends NCI-over-SPI protocol payload
• 6-Master deasserts SPI_CSN

In this case, SPI driver should function normally as it does today. Note
that the INT line can and will be lowered anytime between beginning of
step 3 and end of step 5. A low INT is therefore valid after chip select
has been raised.

This would be easily implemented in a single driver. Unfortunately, we
don't write the SPI driver and I had to imagine some workaround trick to
get the SPI and NFC drivers to work in a synchronized fashion. The trick
is the following:

- send an empty spi message: this will raise the chip select line, and
send nothing. We expect the /CS line will stay arisen because we asked
for it in the spi_transfer cs_change field
- wait for a completion, that will be completed by the NFC driver IRQ
handler when it knows we are in the process of sending data (NFC spec
says that we use SPI in a half duplex mode, so we are either sending or
receiving).
- when completed, proceed with the normal data send.

This has been tested and verified to work very consistently on a Nexus
10 (spi-s3c64xx driver). It may not work the same with other spi
drivers.

The previously defined nci_spi_ops{} whose intended purpose were to
address this problem are not used anymore and therefore totally removed.

The nci_spi_send() takes a new optional write_handshake_completion
completion pointer. If non NULL, the nci spi layer will run the above
trick when sending data to the NFC Chip. If NULL, the data is sent
normally all at once and it is then the NFC driver responsibility to
know what it's doing.

Signed-off-by: Eric Lapuyade <eric.lapuyade@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 include/net/nfc/nci_core.h | 13 +++---------
 net/nfc/nci/spi.c          | 53 +++++++++++++++++++++++++++-------------------
 2 files changed, 34 insertions(+), 32 deletions(-)

diff --git a/include/net/nfc/nci_core.h b/include/net/nfc/nci_core.h
index 1d505317dc67..6126f1f992b4 100644
--- a/include/net/nfc/nci_core.h
+++ b/include/net/nfc/nci_core.h
@@ -207,17 +207,9 @@ int nci_to_errno(__u8 code);
 #define NCI_SPI_CRC_ENABLED	0x01
 
 /* ----- NCI SPI structures ----- */
-struct nci_spi;
-
-struct nci_spi_ops {
-	void (*assert_int)(struct nci_spi *nspi);
-	void (*deassert_int)(struct nci_spi *nspi);
-};
-
 struct nci_spi {
 	struct nci_dev		*ndev;
 	struct spi_device	*spi;
-	struct nci_spi_ops	*ops;
 
 	unsigned int		xfer_udelay;	/* microseconds delay between
 						  transactions */
@@ -229,10 +221,11 @@ struct nci_spi {
 
 /* ----- NCI SPI ----- */
 struct nci_spi *nci_spi_allocate_spi(struct spi_device *spi,
-				     struct nci_spi_ops *ops,
 				     u8 acknowledge_mode, unsigned int delay,
 				     struct nci_dev *ndev);
-int nci_spi_send(struct nci_spi *nspi, struct sk_buff *skb);
+int nci_spi_send(struct nci_spi *nspi,
+		 struct completion *write_handshake_completion,
+		 struct sk_buff *skb);
 struct sk_buff *nci_spi_read(struct nci_spi *nspi);
 
 #endif /* __NCI_CORE_H */
diff --git a/net/nfc/nci/spi.c b/net/nfc/nci/spi.c
index 734c6dde7751..f1d426f10cce 100644
--- a/net/nfc/nci/spi.c
+++ b/net/nfc/nci/spi.c
@@ -38,15 +38,23 @@
 
 #define CRC_INIT		0xFFFF
 
-static int __nci_spi_send(struct nci_spi *nspi, struct sk_buff *skb)
+static int __nci_spi_send(struct nci_spi *nspi, struct sk_buff *skb,
+			  int cs_change)
 {
 	struct spi_message m;
 	struct spi_transfer t;
 
 	memset(&t, 0, sizeof(struct spi_transfer));
-	t.tx_buf = skb->data;
-	t.len = skb->len;
-	t.cs_change = 0;
+	/* a NULL skb means we just want the SPI chip select line to raise */
+	if (skb) {
+		t.tx_buf = skb->data;
+		t.len = skb->len;
+	} else {
+		/* still set tx_buf non NULL to make the driver happy */
+		t.tx_buf = &t;
+		t.len = 0;
+	}
+	t.cs_change = cs_change;
 	t.delay_usecs = nspi->xfer_udelay;
 
 	spi_message_init(&m);
@@ -55,15 +63,15 @@ static int __nci_spi_send(struct nci_spi *nspi, struct sk_buff *skb)
 	return spi_sync(nspi->spi, &m);
 }
 
-int nci_spi_send(struct nci_spi *nspi, struct sk_buff *skb)
+int nci_spi_send(struct nci_spi *nspi,
+		 struct completion *write_handshake_completion,
+		 struct sk_buff *skb)
 {
 	unsigned int payload_len = skb->len;
 	unsigned char *hdr;
 	int ret;
 	long completion_rc;
 
-	nspi->ops->deassert_int(nspi);
-
 	/* add the NCI SPI header to the start of the buffer */
 	hdr = skb_push(skb, NCI_SPI_HDR_LEN);
 	hdr[0] = NCI_SPI_DIRECT_WRITE;
@@ -79,11 +87,21 @@ int nci_spi_send(struct nci_spi *nspi, struct sk_buff *skb)
 		*skb_put(skb, 1) = crc & 0xFF;
 	}
 
-	ret = __nci_spi_send(nspi, skb);
+	if (write_handshake_completion)	{
+		/* Trick SPI driver to raise chip select */
+		ret = __nci_spi_send(nspi, NULL, 1);
+		if (ret)
+			goto done;
 
-	kfree_skb(skb);
-	nspi->ops->assert_int(nspi);
+		/* wait for NFC chip hardware handshake to complete */
+		if (wait_for_completion_timeout(write_handshake_completion,
+						msecs_to_jiffies(1000)) == 0) {
+			ret = -ETIME;
+			goto done;
+		}
+	}
 
+	ret = __nci_spi_send(nspi, skb, 0);
 	if (ret != 0 || nspi->acknowledge_mode == NCI_SPI_CRC_DISABLED)
 		goto done;
 
@@ -96,6 +114,8 @@ int nci_spi_send(struct nci_spi *nspi, struct sk_buff *skb)
 		ret = -EIO;
 
 done:
+	kfree_skb(skb);
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(nci_spi_send);
@@ -106,26 +126,20 @@ EXPORT_SYMBOL_GPL(nci_spi_send);
  * nci_spi_allocate_spi - allocate a new nci spi
  *
  * @spi: SPI device
- * @ops: device operations
  * @acknowledge_mode: Acknowledge mode used by the NFC device
  * @delay: delay between transactions in us
  * @ndev: nci dev to send incoming nci frames to
  */
 struct nci_spi *nci_spi_allocate_spi(struct spi_device *spi,
-				     struct nci_spi_ops *ops,
 				     u8 acknowledge_mode, unsigned int delay,
 				     struct nci_dev *ndev)
 {
 	struct nci_spi *nspi;
 
-	if (!ops->assert_int || !ops->deassert_int)
-		return NULL;
-
 	nspi = devm_kzalloc(&spi->dev, sizeof(struct nci_spi), GFP_KERNEL);
 	if (!nspi)
 		return NULL;
 
-	nspi->ops = ops;
 	nspi->acknowledge_mode = acknowledge_mode;
 	nspi->xfer_udelay = delay;
 
@@ -156,7 +170,7 @@ static int send_acknowledge(struct nci_spi *nspi, u8 acknowledge)
 	*skb_put(skb, 1) = crc >> 8;
 	*skb_put(skb, 1) = crc & 0xFF;
 
-	ret = __nci_spi_send(nspi, skb);
+	ret = __nci_spi_send(nspi, skb, 0);
 
 	kfree_skb(skb);
 
@@ -189,7 +203,6 @@ static struct sk_buff *__nci_spi_read(struct nci_spi *nspi)
 	spi_message_add_tail(&rx, &m);
 
 	ret = spi_sync(nspi->spi, &m);
-
 	if (ret)
 		return NULL;
 
@@ -213,7 +226,6 @@ static struct sk_buff *__nci_spi_read(struct nci_spi *nspi)
 	spi_message_add_tail(&rx, &m);
 
 	ret = spi_sync(nspi->spi, &m);
-
 	if (ret)
 		goto receive_error;
 
@@ -271,8 +283,6 @@ struct sk_buff *nci_spi_read(struct nci_spi *nspi)
 {
 	struct sk_buff *skb;
 
-	nspi->ops->deassert_int(nspi);
-
 	/* Retrieve frame from SPI */
 	skb = __nci_spi_read(nspi);
 	if (!skb)
@@ -305,7 +315,6 @@ struct sk_buff *nci_spi_read(struct nci_spi *nspi)
 		send_acknowledge(nspi, ACKNOWLEDGE_ACK);
 
 done:
-	nspi->ops->assert_int(nspi);
 
 	return skb;
 }
-- 
cgit 


From 3c5710f6a229504d1e6b15cb4170b64ab420b43a Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 3 Sep 2013 11:43:10 +0200
Subject: block: drop dependency on ARCH_SHARK

With this machine deleted, there is no need to maintain the
MFM block driver for its hard disk either.

Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/block/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index e07a5fd58ad7..e67fa16e1938 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -505,7 +505,7 @@ config VIRTIO_BLK
 config BLK_DEV_HD
 	bool "Very old hard disk (MFM/RLL/IDE) driver"
 	depends on HAVE_IDE
-	depends on !ARM || ARCH_RPC || ARCH_SHARK || BROKEN
+	depends on !ARM || ARCH_RPC || BROKEN
 	help
 	  This is a very old hard disk driver that lacks the enhanced
 	  functionality of the newer ones.
-- 
cgit 


From f4b24978aa8648e1f1b6bc6bcaf5aa0e211549f7 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 3 Sep 2013 11:45:43 +0200
Subject: ide: drop dependency on ARCH_SHARK

This drops the selection of default IDE chipset for the Shark
machine as it has been deleted.

Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/ide/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig
index 02906ca99b41..3f7f59cc8b5f 100644
--- a/drivers/ide/Kconfig
+++ b/drivers/ide/Kconfig
@@ -197,8 +197,8 @@ comment "IDE chipset support/bugfixes"
 
 config IDE_GENERIC
 	tristate "generic/default IDE chipset support"
-	depends on ALPHA || X86 || IA64 || M32R || MIPS || ARCH_RPC || ARCH_SHARK
-	default ARM && (ARCH_RPC || ARCH_SHARK)
+	depends on ALPHA || X86 || IA64 || M32R || MIPS || ARCH_RPC
+	default ARM && ARCH_RPC
 	help
 	  This is the generic IDE driver.  This driver attaches to the
 	  fixed legacy ports (e.g. on PCs 0x1f0/0x170, 0x1e8/0x168 and
-- 
cgit 


From f735bba4cc1435d0e9107f77f26f96a3483db0b1 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 3 Sep 2013 11:50:31 +0200
Subject: input: i8042: drop dependency on ARCH_SHARK

Delete the configuration option for the Shark machine from
the i8042 Kconfig, as the machine is deleted from the kernel.

Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/input/serio/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig
index 33b3e88fe4a2..1de1e5f8f795 100644
--- a/drivers/input/serio/Kconfig
+++ b/drivers/input/serio/Kconfig
@@ -21,7 +21,7 @@ if SERIO
 config SERIO_I8042
 	tristate "i8042 PC Keyboard controller" if EXPERT || !X86
 	default y
-	depends on !PARISC && (!ARM || ARCH_SHARK || FOOTBRIDGE_HOST) && \
+	depends on !PARISC && (!ARM || FOOTBRIDGE_HOST) && \
 		   (!SUPERH || SH_CAYMAN) && !M68K && !BLACKFIN && !S390 && \
 		   !ARC
 	help
-- 
cgit 


From fc6ad619a5d29c94e3eecefa572dc1d4fefdc240 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 3 Sep 2013 12:02:16 +0200
Subject: video: drop code for ARCH_SHARK in cyber2000fb

The Cyber2000 frame buffer driver contains a block of code solely
for the Shark machine. As the machine is deleted, delete this
code as well.

Also remove the pointless #ifdef CONFIG_PCI as the Kconfig
clearly states PCI as a dependency anyway.

Cc: Russell King <linux@arm.linux.org.uk>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/video/cyber2000fb.c | 70 ---------------------------------------------
 1 file changed, 70 deletions(-)

diff --git a/drivers/video/cyber2000fb.c b/drivers/video/cyber2000fb.c
index 57886787ead0..1c446bc48b42 100644
--- a/drivers/video/cyber2000fb.c
+++ b/drivers/video/cyber2000fb.c
@@ -1641,67 +1641,6 @@ static void cyberpro_common_resume(struct cfb_info *cfb)
 	cyber2000fb_set_par(&cfb->fb);
 }
 
-#ifdef CONFIG_ARCH_SHARK
-
-#include <mach/framebuffer.h>
-
-static int cyberpro_vl_probe(void)
-{
-	struct cfb_info *cfb;
-	int err = -ENOMEM;
-
-	if (!request_mem_region(FB_START, FB_SIZE, "CyberPro2010"))
-		return err;
-
-	cfb = cyberpro_alloc_fb_info(ID_CYBERPRO_2010, "CyberPro2010");
-	if (!cfb)
-		goto failed_release;
-
-	cfb->irq = -1;
-	cfb->region = ioremap(FB_START, FB_SIZE);
-	if (!cfb->region)
-		goto failed_ioremap;
-
-	cfb->regs = cfb->region + MMIO_OFFSET;
-	cfb->fb.device = NULL;
-	cfb->fb.fix.mmio_start = FB_START + MMIO_OFFSET;
-	cfb->fb.fix.smem_start = FB_START;
-
-	/*
-	 * Bring up the hardware.  This is expected to enable access
-	 * to the linear memory region, and allow access to the memory
-	 * mapped registers.  Also, mem_ctl1 and mem_ctl2 must be
-	 * initialised.
-	 */
-	cyber2000fb_writeb(0x18, 0x46e8, cfb);
-	cyber2000fb_writeb(0x01, 0x102, cfb);
-	cyber2000fb_writeb(0x08, 0x46e8, cfb);
-	cyber2000fb_writeb(EXT_BIU_MISC, 0x3ce, cfb);
-	cyber2000fb_writeb(EXT_BIU_MISC_LIN_ENABLE, 0x3cf, cfb);
-
-	cfb->mclk_mult = 0xdb;
-	cfb->mclk_div  = 0x54;
-
-	err = cyberpro_common_probe(cfb);
-	if (err)
-		goto failed;
-
-	if (int_cfb_info == NULL)
-		int_cfb_info = cfb;
-
-	return 0;
-
-failed:
-	iounmap(cfb->region);
-failed_ioremap:
-	cyberpro_free_fb_info(cfb);
-failed_release:
-	release_mem_region(FB_START, FB_SIZE);
-
-	return err;
-}
-#endif /* CONFIG_ARCH_SHARK */
-
 /*
  * PCI specific support.
  */
@@ -1948,28 +1887,19 @@ static int __init cyber2000fb_init(void)
 	cyber2000fb_setup(option);
 #endif
 
-#ifdef CONFIG_ARCH_SHARK
-	err = cyberpro_vl_probe();
-	if (!err)
-		ret = 0;
-#endif
-#ifdef CONFIG_PCI
 	err = pci_register_driver(&cyberpro_driver);
 	if (!err)
 		ret = 0;
-#endif
 
 	return ret ? err : 0;
 }
 module_init(cyber2000fb_init);
 
-#ifndef CONFIG_ARCH_SHARK
 static void __exit cyberpro_exit(void)
 {
 	pci_unregister_driver(&cyberpro_driver);
 }
 module_exit(cyberpro_exit);
-#endif
 
 MODULE_AUTHOR("Russell King");
 MODULE_DESCRIPTION("CyberPro 2000, 2010 and 5000 framebuffer driver");
-- 
cgit 


From ece238fe0aabac2278f39803c7344e2f6ff0dca2 Mon Sep 17 00:00:00 2001
From: Regid Ichira <regid23@nt1.in>
Date: Mon, 9 Sep 2013 00:58:53 +0300
Subject: typo in drivers/thermal/Kconfig: lpatform instead of platform

Applied to the HEAD of linux.git,
                       VERSION = 3 PATCHLEVEL = 11 SUBLEVEL = 0
Signed-off-by: Regid Ichira <regid23@nt1.in>
Acked-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
 drivers/thermal/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
index dbfc390330ac..57e06a9977cb 100644
--- a/drivers/thermal/Kconfig
+++ b/drivers/thermal/Kconfig
@@ -56,7 +56,7 @@ config THERMAL_DEFAULT_GOV_USER_SPACE
 	select THERMAL_GOV_USER_SPACE
 	help
 	  Select this if you want to let the user space manage the
-	  lpatform thermals.
+	  platform thermals.
 
 endchoice
 
-- 
cgit 


From 7a497c963eceac42677ce1f5d7bb470abedd15f4 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Thu, 22 Aug 2013 18:16:16 -0700
Subject: rcu: Remove redundant code from rcu_cleanup_after_idle()

The rcu_try_advance_all_cbs() function returns a bool saying whether or
not there are callbacks ready to invoke, but rcu_cleanup_after_idle()
rechecks this regardless.  This commit therefore uses the value returned
by rcu_try_advance_all_cbs() instead of making rcu_cleanup_after_idle()
do this recheck.

Reported-by: Tibor Billes <tbilles@gmx.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Tibor Billes <tbilles@gmx.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
---
 kernel/rcutree_plugin.h | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index 130c97b027f2..18d9c91f25d1 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -1768,17 +1768,11 @@ static void rcu_prepare_for_idle(int cpu)
  */
 static void rcu_cleanup_after_idle(int cpu)
 {
-	struct rcu_data *rdp;
-	struct rcu_state *rsp;
 
 	if (rcu_is_nocb_cpu(cpu))
 		return;
-	rcu_try_advance_all_cbs();
-	for_each_rcu_flavor(rsp) {
-		rdp = per_cpu_ptr(rsp->rda, cpu);
-		if (cpu_has_callbacks_ready_to_invoke(rdp))
-			invoke_rcu_core();
-	}
+	if (rcu_try_advance_all_cbs())
+		invoke_rcu_core();
 }
 
 /*
-- 
cgit 


From c229828ca6bc62d6c654f64b1d1b8a9ebd8a56f3 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Sun, 25 Aug 2013 21:20:47 -0700
Subject: rcu: Throttle rcu_try_advance_all_cbs() execution

The rcu_try_advance_all_cbs() function is invoked on each attempted
entry to and every exit from idle.  If this function determines that
there are callbacks ready to invoke, the caller will invoke the RCU
core, which in turn will result in a pair of context switches.  If a
CPU enters and exits idle extremely frequently, this can result in
an excessive number of context switches and high CPU overhead.

This commit therefore causes rcu_try_advance_all_cbs() to throttle
itself, refusing to do work more than once per jiffy.

Reported-by: Tibor Billes <tbilles@gmx.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Tibor Billes <tbilles@gmx.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
---
 kernel/rcutree.h        |  2 ++
 kernel/rcutree_plugin.h | 12 +++++++++---
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/kernel/rcutree.h b/kernel/rcutree.h
index 5f97eab602cd..52be957c9fe2 100644
--- a/kernel/rcutree.h
+++ b/kernel/rcutree.h
@@ -104,6 +104,8 @@ struct rcu_dynticks {
 				    /* idle-period nonlazy_posted snapshot. */
 	unsigned long last_accelerate;
 				    /* Last jiffy CBs were accelerated. */
+	unsigned long last_advance_all;
+				    /* Last jiffy CBs were all advanced. */
 	int tick_nohz_enabled_snap; /* Previously seen value from sysfs. */
 #endif /* #ifdef CONFIG_RCU_FAST_NO_HZ */
 };
diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index 18d9c91f25d1..d81e3856fa91 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -1630,17 +1630,23 @@ module_param(rcu_idle_lazy_gp_delay, int, 0644);
 extern int tick_nohz_enabled;
 
 /*
- * Try to advance callbacks for all flavors of RCU on the current CPU.
- * Afterwards, if there are any callbacks ready for immediate invocation,
- * return true.
+ * Try to advance callbacks for all flavors of RCU on the current CPU, but
+ * only if it has been awhile since the last time we did so.  Afterwards,
+ * if there are any callbacks ready for immediate invocation, return true.
  */
 static bool rcu_try_advance_all_cbs(void)
 {
 	bool cbs_ready = false;
 	struct rcu_data *rdp;
+	struct rcu_dynticks *rdtp = this_cpu_ptr(&rcu_dynticks);
 	struct rcu_node *rnp;
 	struct rcu_state *rsp;
 
+	/* Exit early if we advanced recently. */
+	if (jiffies == rdtp->last_advance_all)
+		return 0;
+	rdtp->last_advance_all = jiffies;
+
 	for_each_rcu_flavor(rsp) {
 		rdp = this_cpu_ptr(rsp->rda);
 		rnp = rdp->mynode;
-- 
cgit 


From c337f8f58ed7cf150651d232af8222421a71463d Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Thu, 5 Sep 2013 17:02:11 -0700
Subject: rcu: Throttle invoke_rcu_core() invocations due to non-lazy callbacks

If a non-lazy callback arrives on a CPU that has previously gone idle
with no non-lazy callbacks, invoke_rcu_core() forces the RCU core to
run.  However, it does not update the conditions, which could result
in several closely spaced invocations of the RCU core, which in turn
could result in an excessively high context-switch rate and resulting
high overhead.

This commit therefore updates the ->all_lazy and ->nonlazy_posted_snap
fields to prevent closely spaced invocations.

Reported-by: Tibor Billes <tbilles@gmx.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Tibor Billes <tbilles@gmx.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
---
 kernel/rcutree_plugin.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
index d81e3856fa91..2c15d7c10684 100644
--- a/kernel/rcutree_plugin.h
+++ b/kernel/rcutree_plugin.h
@@ -1745,6 +1745,8 @@ static void rcu_prepare_for_idle(int cpu)
 	 */
 	if (rdtp->all_lazy &&
 	    rdtp->nonlazy_posted != rdtp->nonlazy_posted_snap) {
+		rdtp->all_lazy = false;
+		rdtp->nonlazy_posted_snap = rdtp->nonlazy_posted;
 		invoke_rcu_core();
 		return;
 	}
-- 
cgit 


From cc6783f788d8fe8b23ec6fc2762f5e8c9a418eee Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Fri, 6 Sep 2013 17:39:49 -0700
Subject: rcu: Is it safe to enter an RCU read-side critical section?

There is currently no way for kernel code to determine whether it
is safe to enter an RCU read-side critical section, in other words,
whether or not RCU is paying attention to the currently running CPU.
Given the large and increasing quantity of code shared by the idle loop
and non-idle code, the this shortcoming is becoming increasingly painful.

This commit therefore adds __rcu_is_watching(), which returns true if
it is safe to enter an RCU read-side critical section on the currently
running CPU.  This function is quite fast, using only a __this_cpu_read().
However, the caller must disable preemption.

Reported-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
---
 include/linux/rcupdate.h |  8 ++++----
 include/linux/rcutiny.h  |  9 +++++++++
 include/linux/rcutree.h  |  2 ++
 kernel/rcutiny.c         |  4 ++--
 kernel/rcutree.c         | 13 +++++++++++++
 5 files changed, 30 insertions(+), 6 deletions(-)

diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index f1f1bc39346b..a53a21a2808c 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -261,6 +261,10 @@ static inline void rcu_user_hooks_switch(struct task_struct *prev,
 		rcu_irq_exit(); \
 	} while (0)
 
+#if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE) || defined(CONFIG_SMP)
+extern int rcu_is_cpu_idle(void);
+#endif /* #if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE) || defined(CONFIG_SMP) */
+
 /*
  * Infrastructure to implement the synchronize_() primitives in
  * TREE_RCU and rcu_barrier_() primitives in TINY_RCU.
@@ -297,10 +301,6 @@ static inline void destroy_rcu_head_on_stack(struct rcu_head *head)
 }
 #endif	/* #else !CONFIG_DEBUG_OBJECTS_RCU_HEAD */
 
-#if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_SMP)
-extern int rcu_is_cpu_idle(void);
-#endif /* #if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_SMP) */
-
 #if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PROVE_RCU)
 bool rcu_lockdep_current_cpu_online(void);
 #else /* #if defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PROVE_RCU) */
diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h
index e31005ee339e..bee665964878 100644
--- a/include/linux/rcutiny.h
+++ b/include/linux/rcutiny.h
@@ -132,4 +132,13 @@ static inline void rcu_scheduler_starting(void)
 }
 #endif /* #else #ifdef CONFIG_DEBUG_LOCK_ALLOC */
 
+#ifdef CONFIG_RCU_TRACE
+
+static inline bool __rcu_is_watching(void)
+{
+	return !rcu_is_cpu_idle();
+}
+
+#endif /* #ifdef CONFIG_RCU_TRACE */
+
 #endif /* __LINUX_RCUTINY_H */
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h
index 226169d1bd2b..293613dfd2a5 100644
--- a/include/linux/rcutree.h
+++ b/include/linux/rcutree.h
@@ -90,4 +90,6 @@ extern void exit_rcu(void);
 extern void rcu_scheduler_starting(void);
 extern int rcu_scheduler_active __read_mostly;
 
+extern bool __rcu_is_watching(void);
+
 #endif /* __LINUX_RCUTREE_H */
diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c
index 9ed6075dc562..b4bc61874d77 100644
--- a/kernel/rcutiny.c
+++ b/kernel/rcutiny.c
@@ -174,7 +174,7 @@ void rcu_irq_enter(void)
 }
 EXPORT_SYMBOL_GPL(rcu_irq_enter);
 
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
+#if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE)
 
 /*
  * Test whether RCU thinks that the current CPU is idle.
@@ -185,7 +185,7 @@ int rcu_is_cpu_idle(void)
 }
 EXPORT_SYMBOL(rcu_is_cpu_idle);
 
-#endif /* #ifdef CONFIG_DEBUG_LOCK_ALLOC */
+#endif /* defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE) */
 
 /*
  * Test whether the current CPU was interrupted from idle.  Nested
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 32618b3fe4e6..910d868808dc 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -671,6 +671,19 @@ int rcu_is_cpu_idle(void)
 }
 EXPORT_SYMBOL(rcu_is_cpu_idle);
 
+/**
+ * __rcu_is_watching - are RCU read-side critical sections safe?
+ *
+ * Return true if RCU is watching the running CPU, which means that
+ * this CPU can safely enter RCU read-side critical sections.  Unlike
+ * rcu_is_cpu_idle(), the caller of __rcu_is_watching() must have at
+ * least disabled preemption.
+ */
+bool __rcu_is_watching(void)
+{
+	return !!(atomic_read(this_cpu_ptr(&rcu_dynticks.dynticks)) & 0x1);
+}
+
 #if defined(CONFIG_PROVE_RCU) && defined(CONFIG_HOTPLUG_CPU)
 
 /*
-- 
cgit 


From f9ffc31ebd38d2d74dbfe9f0b67274e99ad668f5 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Sun, 8 Sep 2013 11:51:06 -0700
Subject: rcu: Change EXPORT_SYMBOL() to EXPORT_SYMBOL_GPL()

Commit e6b80a3b (rcu: Detect illegal rcu dereference in extended
quiescent state) exported the pre-existing rcu_is_cpu_idle() function
using EXPORT_SYMBOL().  However, this is inconsistent with the remaining
exports from RCU, which are all EXPORT_SYMBOL_GPL().  The current state
of affairs means that a non-GPL module could use rcu_is_cpu_idle(),
but in a CONFIG_TREE_PREEMPT_RCU=y kernel would be unable to invoke
rcu_read_lock() and rcu_read_unlock().

This commit therefore makes rcu_is_cpu_idle()'s export be consistent
with the rest of RCU, namely EXPORT_SYMBOL_GPL().

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
---
 kernel/rcutree.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 910d868808dc..1b123e179d71 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -669,7 +669,7 @@ int rcu_is_cpu_idle(void)
 	preempt_enable();
 	return ret;
 }
-EXPORT_SYMBOL(rcu_is_cpu_idle);
+EXPORT_SYMBOL_GPL(rcu_is_cpu_idle);
 
 /**
  * __rcu_is_watching - are RCU read-side critical sections safe?
-- 
cgit 


From 5c173eb8bcb9c1aa888bd6d14a4cb746f3dd2420 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Fri, 13 Sep 2013 17:20:11 -0700
Subject: rcu: Consistent rcu_is_watching() naming

The old rcu_is_cpu_idle() function is just __rcu_is_watching() with
preemption disabled.  This commit therefore renames rcu_is_cpu_idle()
to rcu_is_watching.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
---
 include/linux/rcupdate.h | 18 +++++++++---------
 include/linux/rcutiny.h  | 16 ++++++++++++----
 include/linux/rcutree.h  |  2 +-
 kernel/lockdep.c         |  4 ++--
 kernel/rcupdate.c        |  2 +-
 kernel/rcutiny.c         |  6 +++---
 kernel/rcutree.c         | 36 ++++++++++++++++++------------------
 7 files changed, 46 insertions(+), 38 deletions(-)

diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h
index a53a21a2808c..39cbb889e20d 100644
--- a/include/linux/rcupdate.h
+++ b/include/linux/rcupdate.h
@@ -262,7 +262,7 @@ static inline void rcu_user_hooks_switch(struct task_struct *prev,
 	} while (0)
 
 #if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE) || defined(CONFIG_SMP)
-extern int rcu_is_cpu_idle(void);
+extern bool __rcu_is_watching(void);
 #endif /* #if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE) || defined(CONFIG_SMP) */
 
 /*
@@ -351,7 +351,7 @@ static inline int rcu_read_lock_held(void)
 {
 	if (!debug_lockdep_rcu_enabled())
 		return 1;
-	if (rcu_is_cpu_idle())
+	if (!rcu_is_watching())
 		return 0;
 	if (!rcu_lockdep_current_cpu_online())
 		return 0;
@@ -402,7 +402,7 @@ static inline int rcu_read_lock_sched_held(void)
 
 	if (!debug_lockdep_rcu_enabled())
 		return 1;
-	if (rcu_is_cpu_idle())
+	if (!rcu_is_watching())
 		return 0;
 	if (!rcu_lockdep_current_cpu_online())
 		return 0;
@@ -771,7 +771,7 @@ static inline void rcu_read_lock(void)
 	__rcu_read_lock();
 	__acquire(RCU);
 	rcu_lock_acquire(&rcu_lock_map);
-	rcu_lockdep_assert(!rcu_is_cpu_idle(),
+	rcu_lockdep_assert(rcu_is_watching(),
 			   "rcu_read_lock() used illegally while idle");
 }
 
@@ -792,7 +792,7 @@ static inline void rcu_read_lock(void)
  */
 static inline void rcu_read_unlock(void)
 {
-	rcu_lockdep_assert(!rcu_is_cpu_idle(),
+	rcu_lockdep_assert(rcu_is_watching(),
 			   "rcu_read_unlock() used illegally while idle");
 	rcu_lock_release(&rcu_lock_map);
 	__release(RCU);
@@ -821,7 +821,7 @@ static inline void rcu_read_lock_bh(void)
 	local_bh_disable();
 	__acquire(RCU_BH);
 	rcu_lock_acquire(&rcu_bh_lock_map);
-	rcu_lockdep_assert(!rcu_is_cpu_idle(),
+	rcu_lockdep_assert(rcu_is_watching(),
 			   "rcu_read_lock_bh() used illegally while idle");
 }
 
@@ -832,7 +832,7 @@ static inline void rcu_read_lock_bh(void)
  */
 static inline void rcu_read_unlock_bh(void)
 {
-	rcu_lockdep_assert(!rcu_is_cpu_idle(),
+	rcu_lockdep_assert(rcu_is_watching(),
 			   "rcu_read_unlock_bh() used illegally while idle");
 	rcu_lock_release(&rcu_bh_lock_map);
 	__release(RCU_BH);
@@ -857,7 +857,7 @@ static inline void rcu_read_lock_sched(void)
 	preempt_disable();
 	__acquire(RCU_SCHED);
 	rcu_lock_acquire(&rcu_sched_lock_map);
-	rcu_lockdep_assert(!rcu_is_cpu_idle(),
+	rcu_lockdep_assert(rcu_is_watching(),
 			   "rcu_read_lock_sched() used illegally while idle");
 }
 
@@ -875,7 +875,7 @@ static inline notrace void rcu_read_lock_sched_notrace(void)
  */
 static inline void rcu_read_unlock_sched(void)
 {
-	rcu_lockdep_assert(!rcu_is_cpu_idle(),
+	rcu_lockdep_assert(rcu_is_watching(),
 			   "rcu_read_unlock_sched() used illegally while idle");
 	rcu_lock_release(&rcu_sched_lock_map);
 	__release(RCU_SCHED);
diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h
index bee665964878..09ebcbe9fd78 100644
--- a/include/linux/rcutiny.h
+++ b/include/linux/rcutiny.h
@@ -132,13 +132,21 @@ static inline void rcu_scheduler_starting(void)
 }
 #endif /* #else #ifdef CONFIG_DEBUG_LOCK_ALLOC */
 
-#ifdef CONFIG_RCU_TRACE
+#if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE)
 
-static inline bool __rcu_is_watching(void)
+static inline bool rcu_is_watching(void)
 {
-	return !rcu_is_cpu_idle();
+	return __rcu_is_watching();
 }
 
-#endif /* #ifdef CONFIG_RCU_TRACE */
+#else /* defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE) */
+
+static inline bool rcu_is_watching(void)
+{
+	return true;
+}
+
+
+#endif /* #else defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE) */
 
 #endif /* __LINUX_RCUTINY_H */
diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h
index 293613dfd2a5..4b9c81548742 100644
--- a/include/linux/rcutree.h
+++ b/include/linux/rcutree.h
@@ -90,6 +90,6 @@ extern void exit_rcu(void);
 extern void rcu_scheduler_starting(void);
 extern int rcu_scheduler_active __read_mostly;
 
-extern bool __rcu_is_watching(void);
+extern bool rcu_is_watching(void);
 
 #endif /* __LINUX_RCUTREE_H */
diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index e16c45b9ee77..4e8e14c34e42 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -4224,7 +4224,7 @@ void lockdep_rcu_suspicious(const char *file, const int line, const char *s)
 	printk("\n%srcu_scheduler_active = %d, debug_locks = %d\n",
 	       !rcu_lockdep_current_cpu_online()
 			? "RCU used illegally from offline CPU!\n"
-			: rcu_is_cpu_idle()
+			: !rcu_is_watching()
 				? "RCU used illegally from idle CPU!\n"
 				: "",
 	       rcu_scheduler_active, debug_locks);
@@ -4247,7 +4247,7 @@ void lockdep_rcu_suspicious(const char *file, const int line, const char *s)
 	 * So complain bitterly if someone does call rcu_read_lock(),
 	 * rcu_read_lock_bh() and so on from extended quiescent states.
 	 */
-	if (rcu_is_cpu_idle())
+	if (!rcu_is_watching())
 		printk("RCU used illegally from extended quiescent state!\n");
 
 	lockdep_print_held_locks(curr);
diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c
index b02a339836b4..3b3c0464d1eb 100644
--- a/kernel/rcupdate.c
+++ b/kernel/rcupdate.c
@@ -148,7 +148,7 @@ int rcu_read_lock_bh_held(void)
 {
 	if (!debug_lockdep_rcu_enabled())
 		return 1;
-	if (rcu_is_cpu_idle())
+	if (!rcu_is_watching())
 		return 0;
 	if (!rcu_lockdep_current_cpu_online())
 		return 0;
diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c
index b4bc61874d77..0fa061dfa55d 100644
--- a/kernel/rcutiny.c
+++ b/kernel/rcutiny.c
@@ -179,11 +179,11 @@ EXPORT_SYMBOL_GPL(rcu_irq_enter);
 /*
  * Test whether RCU thinks that the current CPU is idle.
  */
-int rcu_is_cpu_idle(void)
+bool __rcu_is_watching(void)
 {
-	return !rcu_dynticks_nesting;
+	return rcu_dynticks_nesting;
 }
-EXPORT_SYMBOL(rcu_is_cpu_idle);
+EXPORT_SYMBOL(__rcu_is_watching);
 
 #endif /* defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE) */
 
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 1b123e179d71..981d0c15a389 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -655,34 +655,34 @@ void rcu_nmi_exit(void)
 }
 
 /**
- * rcu_is_cpu_idle - see if RCU thinks that the current CPU is idle
+ * __rcu_is_watching - are RCU read-side critical sections safe?
+ *
+ * Return true if RCU is watching the running CPU, which means that
+ * this CPU can safely enter RCU read-side critical sections.  Unlike
+ * rcu_is_watching(), the caller of __rcu_is_watching() must have at
+ * least disabled preemption.
+ */
+bool __rcu_is_watching(void)
+{
+	return atomic_read(this_cpu_ptr(&rcu_dynticks.dynticks)) & 0x1;
+}
+
+/**
+ * rcu_is_watching - see if RCU thinks that the current CPU is idle
  *
  * If the current CPU is in its idle loop and is neither in an interrupt
  * or NMI handler, return true.
  */
-int rcu_is_cpu_idle(void)
+bool rcu_is_watching(void)
 {
 	int ret;
 
 	preempt_disable();
-	ret = (atomic_read(&__get_cpu_var(rcu_dynticks).dynticks) & 0x1) == 0;
+	ret = __rcu_is_watching();
 	preempt_enable();
 	return ret;
 }
-EXPORT_SYMBOL_GPL(rcu_is_cpu_idle);
-
-/**
- * __rcu_is_watching - are RCU read-side critical sections safe?
- *
- * Return true if RCU is watching the running CPU, which means that
- * this CPU can safely enter RCU read-side critical sections.  Unlike
- * rcu_is_cpu_idle(), the caller of __rcu_is_watching() must have at
- * least disabled preemption.
- */
-bool __rcu_is_watching(void)
-{
-	return !!(atomic_read(this_cpu_ptr(&rcu_dynticks.dynticks)) & 0x1);
-}
+EXPORT_SYMBOL_GPL(rcu_is_watching);
 
 #if defined(CONFIG_PROVE_RCU) && defined(CONFIG_HOTPLUG_CPU)
 
@@ -2268,7 +2268,7 @@ static void __call_rcu_core(struct rcu_state *rsp, struct rcu_data *rdp,
 	 * If called from an extended quiescent state, invoke the RCU
 	 * core in order to force a re-evaluation of RCU's idleness.
 	 */
-	if (rcu_is_cpu_idle() && cpu_online(smp_processor_id()))
+	if (!rcu_is_watching() && cpu_online(smp_processor_id()))
 		invoke_rcu_core();
 
 	/* If interrupts were disabled or CPU offline, don't invoke RCU core. */
-- 
cgit 


From 64d3b7a1d5289486df2d8bce36e23ed5ebc80a3d Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Mon, 19 Aug 2013 11:59:43 -0700
Subject: rcu: Update stall-warning documentation

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
---
 Documentation/RCU/stallwarn.txt | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/Documentation/RCU/stallwarn.txt b/Documentation/RCU/stallwarn.txt
index 8e9359de1d28..6f3a0057548e 100644
--- a/Documentation/RCU/stallwarn.txt
+++ b/Documentation/RCU/stallwarn.txt
@@ -12,12 +12,12 @@ CONFIG_RCU_CPU_STALL_TIMEOUT
 	This kernel configuration parameter defines the period of time
 	that RCU will wait from the beginning of a grace period until it
 	issues an RCU CPU stall warning.  This time period is normally
-	sixty seconds.
+	21 seconds.
 
 	This configuration parameter may be changed at runtime via the
 	/sys/module/rcutree/parameters/rcu_cpu_stall_timeout, however
 	this parameter is checked only at the beginning of a cycle.
-	So if you are 30 seconds into a 70-second stall, setting this
+	So if you are 10 seconds into a 40-second stall, setting this
 	sysfs parameter to (say) five will shorten the timeout for the
 	-next- stall, or the following warning for the current stall
 	(assuming the stall lasts long enough).  It will not affect the
@@ -32,7 +32,7 @@ CONFIG_RCU_CPU_STALL_VERBOSE
 	also dump the stacks of any tasks that are blocking the current
 	RCU-preempt grace period.
 
-RCU_CPU_STALL_INFO
+CONFIG_RCU_CPU_STALL_INFO
 
 	This kernel configuration parameter causes the stall warning to
 	print out additional per-CPU diagnostic information, including
@@ -43,7 +43,8 @@ RCU_STALL_DELAY_DELTA
 	Although the lockdep facility is extremely useful, it does add
 	some overhead.  Therefore, under CONFIG_PROVE_RCU, the
 	RCU_STALL_DELAY_DELTA macro allows five extra seconds before
-	giving an RCU CPU stall warning message.
+	giving an RCU CPU stall warning message.  (This is a cpp
+	macro, not a kernel configuration parameter.)
 
 RCU_STALL_RAT_DELAY
 
@@ -52,7 +53,8 @@ RCU_STALL_RAT_DELAY
 	However, if the offending CPU does not detect its own stall in
 	the number of jiffies specified by RCU_STALL_RAT_DELAY, then
 	some other CPU will complain.  This delay is normally set to
-	two jiffies.
+	two jiffies.  (This is a cpp macro, not a kernel configuration
+	parameter.)
 
 When a CPU detects that it is stalling, it will print a message similar
 to the following:
@@ -86,7 +88,12 @@ printing, there will be a spurious stall-warning message:
 
 INFO: rcu_bh_state detected stalls on CPUs/tasks: { } (detected by 4, 2502 jiffies)
 
-This is rare, but does happen from time to time in real life.
+This is rare, but does happen from time to time in real life.  It is also
+possible for a zero-jiffy stall to be flagged in this case, depending
+on how the stall warning and the grace-period initialization happen to
+interact.  Please note that it is not possible to entirely eliminate this
+sort of false positive without resorting to things like stop_machine(),
+which is overkill for this sort of problem.
 
 If the CONFIG_RCU_CPU_STALL_INFO kernel configuration parameter is set,
 more information is printed with the stall-warning message, for example:
@@ -216,4 +223,5 @@ that portion of the stack which remains the same from trace to trace.
 If you can reliably trigger the stall, ftrace can be quite helpful.
 
 RCU bugs can often be debugged with the help of CONFIG_RCU_TRACE
-and with RCU's event tracing.
+and with RCU's event tracing.  For information on RCU's event tracing,
+see include/trace/events/rcu.h.
-- 
cgit 


From 64f26e5c86af9ce8615721340c8282f2b148c9aa Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Tue, 10 Sep 2013 08:26:09 -0700
Subject: kthread: Add pointer to vmstat-avoidance patch

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
---
 Documentation/kernel-per-CPU-kthreads.txt | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/Documentation/kernel-per-CPU-kthreads.txt b/Documentation/kernel-per-CPU-kthreads.txt
index 32351bfabf20..827104fb9364 100644
--- a/Documentation/kernel-per-CPU-kthreads.txt
+++ b/Documentation/kernel-per-CPU-kthreads.txt
@@ -181,12 +181,17 @@ To reduce its OS jitter, do any of the following:
 		make sure that this is safe on your particular system.
 	d.	It is not possible to entirely get rid of OS jitter
 		from vmstat_update() on CONFIG_SMP=y systems, but you
-		can decrease its frequency by writing a large value to
-		/proc/sys/vm/stat_interval.  The default value is HZ,
-		for an interval of one second.  Of course, larger values
-		will make your virtual-memory statistics update more
-		slowly.  Of course, you can also run your workload at
-		a real-time priority, thus preempting vmstat_update().
+		can decrease its frequency by writing a large value
+		to /proc/sys/vm/stat_interval.	The default value is
+		HZ, for an interval of one second.  Of course, larger
+		values will make your virtual-memory statistics update
+		more slowly.  Of course, you can also run your workload
+		at a real-time priority, thus preempting vmstat_update(),
+		but if your workload is CPU-bound, this is a bad idea.
+		However, there is an RFC patch from Christoph Lameter
+		(based on an earlier one from Gilad Ben-Yossef) that
+		reduces or even eliminates vmstat overhead for some
+		workloads at https://lkml.org/lkml/2013/9/4/379.
 	e.	If running on high-end powerpc servers, build with
 		CONFIG_PPC_RTAS_DAEMON=n.  This prevents the RTAS
 		daemon from running on each CPU every second or so.
-- 
cgit 


From 22953f9329ebf5cc81cefe250a079600145388b3 Mon Sep 17 00:00:00 2001
From: Olivier Guiter <olivier.guiter@linux.intel.com>
Date: Mon, 23 Sep 2013 12:24:37 +0200
Subject: NFC: pn533: Add MI/TG bits only when in Initiator mode

The fragmentation routine (used to split big frames) could be used in
target or initiator mode (TgSetMetaData vs InDataExchange), but the
MI/TG bytes are not needed in target mode (TgSetMetaData), so we
add a check on the mode

Signed-off-by: Olivier Guiter <olivier.guiter@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/nfc/pn533.c | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index 75bffd8bb3eb..0b7e928ceb3d 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -2504,14 +2504,17 @@ static int pn533_fill_fragment_skbs(struct pn533 *dev, struct sk_buff *skb)
 			break;
 		}
 
-		/* Reserve the TG/MI byte */
-		skb_reserve(frag, 1);
-
-		/* MI + TG */
-		if (frag_size  == PN533_CMD_DATAFRAME_MAXLEN)
-			*skb_push(frag, sizeof(u8)) = (PN533_CMD_MI_MASK | 1);
-		else
-			*skb_push(frag, sizeof(u8)) =  1; /* TG */
+		if (!dev->tgt_mode) {
+			/* Reserve the TG/MI byte */
+			skb_reserve(frag, 1);
+
+			/* MI + TG */
+			if (frag_size  == PN533_CMD_DATAFRAME_MAXLEN)
+				*skb_push(frag, sizeof(u8)) =
+							(PN533_CMD_MI_MASK | 1);
+			else
+				*skb_push(frag, sizeof(u8)) =  1; /* TG */
+		}
 
 		memcpy(skb_put(frag, frag_size), skb->data, frag_size);
 
-- 
cgit 


From 3c13b244de968d88659b5aece0c0c4a6b97f220e Mon Sep 17 00:00:00 2001
From: Olivier Guiter <olivier.guiter@linux.intel.com>
Date: Mon, 23 Sep 2013 12:24:38 +0200
Subject: NFC: pn533: Add support for incoming fragmented frame in target mode

This code processes, for Target Mode, incoming fragmented frames.
If the MI bit is present, we start a working queue to grab and aggregate
all the parts (using TmGetData between each parts). On the last one, as
there's no more MI bit, we jump on the usual behavior.

Signed-off-by: Olivier Guiter <olivier.guiter@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/nfc/pn533.c | 72 +++++++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 64 insertions(+), 8 deletions(-)

diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index 0b7e928ceb3d..cd20641e7443 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -373,6 +373,7 @@ struct pn533 {
 	struct delayed_work poll_work;
 	struct work_struct mi_rx_work;
 	struct work_struct mi_tx_work;
+	struct work_struct mi_tm_rx_work;
 	struct work_struct tg_work;
 	struct work_struct rf_work;
 
@@ -1624,27 +1625,81 @@ static struct sk_buff *pn533_alloc_poll_tg_frame(struct pn533 *dev)
 
 #define PN533_CMD_DATAEXCH_HEAD_LEN 1
 #define PN533_CMD_DATAEXCH_DATA_MAXLEN 262
+static void pn533_wq_tm_mi_recv(struct work_struct *work);
+static struct sk_buff *pn533_build_response(struct pn533 *dev);
+
 static int pn533_tm_get_data_complete(struct pn533 *dev, void *arg,
 				      struct sk_buff *resp)
 {
-	u8 status;
+	struct sk_buff *skb;
+	u8 status, ret, mi;
+	int rc;
 
 	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
-	if (IS_ERR(resp))
+	if (IS_ERR(resp)) {
+		skb_queue_purge(&dev->resp_q);
 		return PTR_ERR(resp);
+	}
 
 	status = resp->data[0];
+
+	ret = status & PN533_CMD_RET_MASK;
+	mi = status & PN533_CMD_MI_MASK;
+
 	skb_pull(resp, sizeof(status));
 
-	if (status != 0) {
-		nfc_tm_deactivated(dev->nfc_dev);
-		dev->tgt_mode = 0;
-		dev_kfree_skb(resp);
-		return 0;
+	if (ret != PN533_CMD_RET_SUCCESS) {
+		rc = -EIO;
+		goto error;
+	}
+
+	skb_queue_tail(&dev->resp_q, resp);
+
+	if (mi) {
+		queue_work(dev->wq, &dev->mi_tm_rx_work);
+		return -EINPROGRESS;
+	}
+
+	skb = pn533_build_response(dev);
+	if (!skb) {
+		rc = -EIO;
+		goto error;
 	}
 
-	return nfc_tm_data_received(dev->nfc_dev, resp);
+	return nfc_tm_data_received(dev->nfc_dev, skb);
+
+error:
+	nfc_tm_deactivated(dev->nfc_dev);
+	dev->tgt_mode = 0;
+	skb_queue_purge(&dev->resp_q);
+	dev_kfree_skb(resp);
+
+	return rc;
+}
+
+static void pn533_wq_tm_mi_recv(struct work_struct *work)
+{
+	struct pn533 *dev = container_of(work, struct pn533, mi_tm_rx_work);
+	struct sk_buff *skb;
+	int rc;
+
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
+
+	skb = pn533_alloc_skb(dev, 0);
+	if (!skb)
+		return;
+
+	rc = pn533_send_cmd_direct_async(dev,
+					PN533_CMD_TG_GET_DATA,
+					skb,
+					pn533_tm_get_data_complete,
+					NULL);
+
+	if (rc < 0)
+		dev_kfree_skb(skb);
+
+	return;
 }
 
 static void pn533_wq_tg_get_data(struct work_struct *work)
@@ -3055,6 +3110,7 @@ static int pn533_probe(struct usb_interface *interface,
 	INIT_WORK(&dev->mi_rx_work, pn533_wq_mi_recv);
 	INIT_WORK(&dev->mi_tx_work, pn533_wq_mi_send);
 	INIT_WORK(&dev->tg_work, pn533_wq_tg_get_data);
+	INIT_WORK(&dev->mi_tm_rx_work, pn533_wq_tm_mi_recv);
 	INIT_DELAYED_WORK(&dev->poll_work, pn533_wq_poll);
 	INIT_WORK(&dev->rf_work, pn533_wq_rf);
 	dev->wq = alloc_ordered_workqueue("pn533", 0);
-- 
cgit 


From 93ad42020c2d3fb4a277cc04c014e1ea0d8b0850 Mon Sep 17 00:00:00 2001
From: Olivier Guiter <olivier.guiter@linux.intel.com>
Date: Mon, 23 Sep 2013 12:24:39 +0200
Subject: NFC: pn533: Target mode Tx fragmentation support

In target mode, when we want to send frames larger than the max length
(PN533_CMD_DATAEXCH_DATA_MAXLEN), we have to split the frame in smaller
chunks and send them, using a specific working queue, with the TgSetMetaData
command. TgSetMetaData sets his own MI bit in the PFB.
The last chunk is sent using the TgSetData command.

Signed-off-by: Olivier Guiter <olivier.guiter@linux.intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/nfc/pn533.c | 77 ++++++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 70 insertions(+), 7 deletions(-)

diff --git a/drivers/nfc/pn533.c b/drivers/nfc/pn533.c
index cd20641e7443..2daf04c07338 100644
--- a/drivers/nfc/pn533.c
+++ b/drivers/nfc/pn533.c
@@ -150,6 +150,7 @@ MODULE_DEVICE_TABLE(usb, pn533_table);
 #define PN533_CMD_TG_INIT_AS_TARGET 0x8c
 #define PN533_CMD_TG_GET_DATA 0x86
 #define PN533_CMD_TG_SET_DATA 0x8e
+#define PN533_CMD_TG_SET_META_DATA 0x94
 #define PN533_CMD_UNDEF 0xff
 
 #define PN533_CMD_RESPONSE(cmd) (cmd + 1)
@@ -374,6 +375,7 @@ struct pn533 {
 	struct work_struct mi_rx_work;
 	struct work_struct mi_tx_work;
 	struct work_struct mi_tm_rx_work;
+	struct work_struct mi_tm_tx_work;
 	struct work_struct tg_work;
 	struct work_struct rf_work;
 
@@ -1702,6 +1704,46 @@ static void pn533_wq_tm_mi_recv(struct work_struct *work)
 	return;
 }
 
+static int pn533_tm_send_complete(struct pn533 *dev, void *arg,
+				  struct sk_buff *resp);
+static void pn533_wq_tm_mi_send(struct work_struct *work)
+{
+	struct pn533 *dev = container_of(work, struct pn533, mi_tm_tx_work);
+	struct sk_buff *skb;
+	int rc;
+
+	dev_dbg(&dev->interface->dev, "%s\n", __func__);
+
+	/* Grab the first skb in the queue */
+	skb = skb_dequeue(&dev->fragment_skb);
+	if (skb == NULL) {	/* No more data */
+		/* Reset the queue for future use */
+		skb_queue_head_init(&dev->fragment_skb);
+		goto error;
+	}
+
+	/* last entry - remove MI bit */
+	if (skb_queue_len(&dev->fragment_skb) == 0) {
+		rc = pn533_send_cmd_direct_async(dev, PN533_CMD_TG_SET_DATA,
+					skb, pn533_tm_send_complete, NULL);
+	} else
+		rc = pn533_send_cmd_direct_async(dev,
+					PN533_CMD_TG_SET_META_DATA,
+					skb, pn533_tm_send_complete, NULL);
+
+	if (rc == 0) /* success */
+		return;
+
+	dev_err(&dev->interface->dev,
+		"Error %d when trying to perform set meta data_exchange", rc);
+
+	dev_kfree_skb(skb);
+
+error:
+	pn533_send_ack(dev, GFP_KERNEL);
+	queue_work(dev->wq, &dev->cmd_work);
+}
+
 static void pn533_wq_tg_get_data(struct work_struct *work)
 {
 	struct pn533 *dev = container_of(work, struct pn533, tg_work);
@@ -2668,6 +2710,11 @@ static int pn533_tm_send_complete(struct pn533 *dev, void *arg,
 
 	status = resp->data[0];
 
+	/* Prepare for the next round */
+	if (skb_queue_len(&dev->fragment_skb) > 0) {
+		queue_work(dev->wq, &dev->mi_tm_tx_work);
+		return -EINPROGRESS;
+	}
 	dev_kfree_skb(resp);
 
 	if (status != 0) {
@@ -2690,17 +2737,32 @@ static int pn533_tm_send(struct nfc_dev *nfc_dev, struct sk_buff *skb)
 
 	dev_dbg(&dev->interface->dev, "%s\n", __func__);
 
+	/* let's split in multiple chunks if size's too big */
 	if (skb->len > PN533_CMD_DATAEXCH_DATA_MAXLEN) {
-		nfc_err(&dev->interface->dev,
-			"Data length greater than the max allowed: %d\n",
-			PN533_CMD_DATAEXCH_DATA_MAXLEN);
-		return -ENOSYS;
+		rc = pn533_fill_fragment_skbs(dev, skb);
+		if (rc <= 0)
+			goto error;
+
+		/* get the first skb */
+		skb = skb_dequeue(&dev->fragment_skb);
+		if (!skb) {
+			rc = -EIO;
+			goto error;
+		}
+
+		rc = pn533_send_data_async(dev, PN533_CMD_TG_SET_META_DATA, skb,
+						pn533_tm_send_complete, NULL);
+	} else {
+		/* Send th skb */
+		rc = pn533_send_data_async(dev, PN533_CMD_TG_SET_DATA, skb,
+						pn533_tm_send_complete, NULL);
 	}
 
-	rc = pn533_send_data_async(dev, PN533_CMD_TG_SET_DATA, skb,
-				   pn533_tm_send_complete, NULL);
-	if (rc < 0)
+error:
+	if (rc < 0) {
 		dev_kfree_skb(skb);
+		skb_queue_purge(&dev->fragment_skb);
+	}
 
 	return rc;
 }
@@ -3111,6 +3173,7 @@ static int pn533_probe(struct usb_interface *interface,
 	INIT_WORK(&dev->mi_tx_work, pn533_wq_mi_send);
 	INIT_WORK(&dev->tg_work, pn533_wq_tg_get_data);
 	INIT_WORK(&dev->mi_tm_rx_work, pn533_wq_tm_mi_recv);
+	INIT_WORK(&dev->mi_tm_tx_work, pn533_wq_tm_mi_send);
 	INIT_DELAYED_WORK(&dev->poll_work, pn533_wq_poll);
 	INIT_WORK(&dev->rf_work, pn533_wq_rf);
 	dev->wq = alloc_ordered_workqueue("pn533", 0);
-- 
cgit 


From 9abc4e66eb839c28516916543768be08c814a3c8 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 30 Aug 2013 16:15:10 +0100
Subject: KEYS: Rename public key parameter name arrays

Rename the arrays of public key parameters (public key algorithm names, hash
algorithm names and ID type names) so that the array name ends in "_name".

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Josh Boyer <jwboyer@redhat.com>
---
 crypto/asymmetric_keys/public_key.c      | 14 +++++++-------
 crypto/asymmetric_keys/x509_public_key.c |  8 ++++----
 include/crypto/public_key.h              |  6 +++---
 kernel/module_signing.c                  |  4 ++--
 4 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/crypto/asymmetric_keys/public_key.c b/crypto/asymmetric_keys/public_key.c
index cb2e29180a87..b313df1bd253 100644
--- a/crypto/asymmetric_keys/public_key.c
+++ b/crypto/asymmetric_keys/public_key.c
@@ -22,13 +22,13 @@
 
 MODULE_LICENSE("GPL");
 
-const char *const pkey_algo[PKEY_ALGO__LAST] = {
+const char *const pkey_algo_name[PKEY_ALGO__LAST] = {
 	[PKEY_ALGO_DSA]		= "DSA",
 	[PKEY_ALGO_RSA]		= "RSA",
 };
-EXPORT_SYMBOL_GPL(pkey_algo);
+EXPORT_SYMBOL_GPL(pkey_algo_name);
 
-const char *const pkey_hash_algo[PKEY_HASH__LAST] = {
+const char *const pkey_hash_algo_name[PKEY_HASH__LAST] = {
 	[PKEY_HASH_MD4]		= "md4",
 	[PKEY_HASH_MD5]		= "md5",
 	[PKEY_HASH_SHA1]	= "sha1",
@@ -38,13 +38,13 @@ const char *const pkey_hash_algo[PKEY_HASH__LAST] = {
 	[PKEY_HASH_SHA512]	= "sha512",
 	[PKEY_HASH_SHA224]	= "sha224",
 };
-EXPORT_SYMBOL_GPL(pkey_hash_algo);
+EXPORT_SYMBOL_GPL(pkey_hash_algo_name);
 
-const char *const pkey_id_type[PKEY_ID_TYPE__LAST] = {
+const char *const pkey_id_type_name[PKEY_ID_TYPE__LAST] = {
 	[PKEY_ID_PGP]		= "PGP",
 	[PKEY_ID_X509]		= "X509",
 };
-EXPORT_SYMBOL_GPL(pkey_id_type);
+EXPORT_SYMBOL_GPL(pkey_id_type_name);
 
 /*
  * Provide a part of a description of the key for /proc/keys.
@@ -56,7 +56,7 @@ static void public_key_describe(const struct key *asymmetric_key,
 
 	if (key)
 		seq_printf(m, "%s.%s",
-			   pkey_id_type[key->id_type], key->algo->name);
+			   pkey_id_type_name[key->id_type], key->algo->name);
 }
 
 /*
diff --git a/crypto/asymmetric_keys/x509_public_key.c b/crypto/asymmetric_keys/x509_public_key.c
index 06007f0e880c..afbbc362f85a 100644
--- a/crypto/asymmetric_keys/x509_public_key.c
+++ b/crypto/asymmetric_keys/x509_public_key.c
@@ -49,7 +49,7 @@ static int x509_check_signature(const struct public_key *pub,
 	/* Allocate the hashing algorithm we're going to need and find out how
 	 * big the hash operational data will be.
 	 */
-	tfm = crypto_alloc_shash(pkey_hash_algo[cert->sig_hash_algo], 0, 0);
+	tfm = crypto_alloc_shash(pkey_hash_algo_name[cert->sig_hash_algo], 0, 0);
 	if (IS_ERR(tfm))
 		return (PTR_ERR(tfm) == -ENOENT) ? -ENOPKG : PTR_ERR(tfm);
 
@@ -117,7 +117,7 @@ static int x509_key_preparse(struct key_preparsed_payload *prep)
 
 	pr_devel("Cert Issuer: %s\n", cert->issuer);
 	pr_devel("Cert Subject: %s\n", cert->subject);
-	pr_devel("Cert Key Algo: %s\n", pkey_algo[cert->pkey_algo]);
+	pr_devel("Cert Key Algo: %s\n", pkey_algo_name[cert->pkey_algo]);
 	pr_devel("Cert Valid From: %04ld-%02d-%02d %02d:%02d:%02d\n",
 		 cert->valid_from.tm_year + 1900, cert->valid_from.tm_mon + 1,
 		 cert->valid_from.tm_mday, cert->valid_from.tm_hour,
@@ -127,8 +127,8 @@ static int x509_key_preparse(struct key_preparsed_payload *prep)
 		 cert->valid_to.tm_mday, cert->valid_to.tm_hour,
 		 cert->valid_to.tm_min,  cert->valid_to.tm_sec);
 	pr_devel("Cert Signature: %s + %s\n",
-		 pkey_algo[cert->sig_pkey_algo],
-		 pkey_hash_algo[cert->sig_hash_algo]);
+		 pkey_algo_name[cert->sig_pkey_algo],
+		 pkey_hash_algo_name[cert->sig_hash_algo]);
 
 	if (!cert->fingerprint || !cert->authority) {
 		pr_warn("Cert for '%s' must have SubjKeyId and AuthKeyId extensions\n",
diff --git a/include/crypto/public_key.h b/include/crypto/public_key.h
index f5b0224c9967..619d5706d837 100644
--- a/include/crypto/public_key.h
+++ b/include/crypto/public_key.h
@@ -22,7 +22,7 @@ enum pkey_algo {
 	PKEY_ALGO__LAST
 };
 
-extern const char *const pkey_algo[PKEY_ALGO__LAST];
+extern const char *const pkey_algo_name[PKEY_ALGO__LAST];
 
 enum pkey_hash_algo {
 	PKEY_HASH_MD4,
@@ -36,7 +36,7 @@ enum pkey_hash_algo {
 	PKEY_HASH__LAST
 };
 
-extern const char *const pkey_hash_algo[PKEY_HASH__LAST];
+extern const char *const pkey_hash_algo_name[PKEY_HASH__LAST];
 
 enum pkey_id_type {
 	PKEY_ID_PGP,		/* OpenPGP generated key ID */
@@ -44,7 +44,7 @@ enum pkey_id_type {
 	PKEY_ID_TYPE__LAST
 };
 
-extern const char *const pkey_id_type[PKEY_ID_TYPE__LAST];
+extern const char *const pkey_id_type_name[PKEY_ID_TYPE__LAST];
 
 /*
  * Cryptographic data for the public-key subtype of the asymmetric key type.
diff --git a/kernel/module_signing.c b/kernel/module_signing.c
index f2970bddc5ea..ee476404167b 100644
--- a/kernel/module_signing.c
+++ b/kernel/module_signing.c
@@ -54,7 +54,7 @@ static struct public_key_signature *mod_make_digest(enum pkey_hash_algo hash,
 	/* Allocate the hashing algorithm we're going to need and find out how
 	 * big the hash operational data will be.
 	 */
-	tfm = crypto_alloc_shash(pkey_hash_algo[hash], 0, 0);
+	tfm = crypto_alloc_shash(pkey_hash_algo_name[hash], 0, 0);
 	if (IS_ERR(tfm))
 		return (PTR_ERR(tfm) == -ENOENT) ? ERR_PTR(-ENOPKG) : ERR_CAST(tfm);
 
@@ -217,7 +217,7 @@ int mod_verify_sig(const void *mod, unsigned long *_modlen)
 		return -ENOPKG;
 
 	if (ms.hash >= PKEY_HASH__LAST ||
-	    !pkey_hash_algo[ms.hash])
+	    !pkey_hash_algo_name[ms.hash])
 		return -ENOPKG;
 
 	key = request_asymmetric_key(sig, ms.signer_len,
-- 
cgit 


From 206ce59a109f3b4bb352845bcd04f3cf504ae592 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 30 Aug 2013 16:15:18 +0100
Subject: KEYS: Move the algorithm pointer array from x509 to public_key.c

Move the public-key algorithm pointer array from x509_public_key.c to
public_key.c as it isn't X.509 specific.

Note that to make this configure correctly, the public key part must be
dependent on the RSA module rather than the other way round.  This needs a
further patch to make use of the crypto module loading stuff rather than using
a fixed table.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Josh Boyer <jwboyer@redhat.com>
---
 crypto/asymmetric_keys/Kconfig           |  2 +-
 crypto/asymmetric_keys/public_key.c      |  8 ++++++++
 crypto/asymmetric_keys/x509_public_key.c | 11 +----------
 include/crypto/public_key.h              |  1 +
 4 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/crypto/asymmetric_keys/Kconfig b/crypto/asymmetric_keys/Kconfig
index 6d2c2ea12559..862b01fe6172 100644
--- a/crypto/asymmetric_keys/Kconfig
+++ b/crypto/asymmetric_keys/Kconfig
@@ -12,6 +12,7 @@ if ASYMMETRIC_KEY_TYPE
 config ASYMMETRIC_PUBLIC_KEY_SUBTYPE
 	tristate "Asymmetric public-key crypto algorithm subtype"
 	select MPILIB
+	select PUBLIC_KEY_ALGO_RSA
 	help
 	  This option provides support for asymmetric public key type handling.
 	  If signature generation and/or verification are to be used,
@@ -20,7 +21,6 @@ config ASYMMETRIC_PUBLIC_KEY_SUBTYPE
 
 config PUBLIC_KEY_ALGO_RSA
 	tristate "RSA public-key algorithm"
-	depends on ASYMMETRIC_PUBLIC_KEY_SUBTYPE
 	select MPILIB_EXTRA
 	help
 	  This option enables support for the RSA algorithm (PKCS#1, RFC3447).
diff --git a/crypto/asymmetric_keys/public_key.c b/crypto/asymmetric_keys/public_key.c
index b313df1bd253..796ce0802aa0 100644
--- a/crypto/asymmetric_keys/public_key.c
+++ b/crypto/asymmetric_keys/public_key.c
@@ -28,6 +28,14 @@ const char *const pkey_algo_name[PKEY_ALGO__LAST] = {
 };
 EXPORT_SYMBOL_GPL(pkey_algo_name);
 
+const struct public_key_algorithm *pkey_algo[PKEY_ALGO__LAST] = {
+#if defined(CONFIG_PUBLIC_KEY_ALGO_RSA) || \
+	defined(CONFIG_PUBLIC_KEY_ALGO_RSA_MODULE)
+	[PKEY_ALGO_RSA]		= &RSA_public_key_algorithm,
+#endif
+};
+EXPORT_SYMBOL_GPL(pkey_algo);
+
 const char *const pkey_hash_algo_name[PKEY_HASH__LAST] = {
 	[PKEY_HASH_MD4]		= "md4",
 	[PKEY_HASH_MD5]		= "md5",
diff --git a/crypto/asymmetric_keys/x509_public_key.c b/crypto/asymmetric_keys/x509_public_key.c
index afbbc362f85a..fe38628adae9 100644
--- a/crypto/asymmetric_keys/x509_public_key.c
+++ b/crypto/asymmetric_keys/x509_public_key.c
@@ -23,15 +23,6 @@
 #include "public_key.h"
 #include "x509_parser.h"
 
-static const
-struct public_key_algorithm *x509_public_key_algorithms[PKEY_ALGO__LAST] = {
-	[PKEY_ALGO_DSA]		= NULL,
-#if defined(CONFIG_PUBLIC_KEY_ALGO_RSA) || \
-	defined(CONFIG_PUBLIC_KEY_ALGO_RSA_MODULE)
-	[PKEY_ALGO_RSA]		= &RSA_public_key_algorithm,
-#endif
-};
-
 /*
  * Check the signature on a certificate using the provided public key
  */
@@ -174,7 +165,7 @@ static int x509_key_preparse(struct key_preparsed_payload *prep)
 		goto error_free_cert;
 	}
 
-	cert->pub->algo = x509_public_key_algorithms[cert->pkey_algo];
+	cert->pub->algo = pkey_algo[cert->pkey_algo];
 	cert->pub->id_type = PKEY_ID_X509;
 
 	/* Check the signature on the key */
diff --git a/include/crypto/public_key.h b/include/crypto/public_key.h
index 619d5706d837..46bde250bfae 100644
--- a/include/crypto/public_key.h
+++ b/include/crypto/public_key.h
@@ -23,6 +23,7 @@ enum pkey_algo {
 };
 
 extern const char *const pkey_algo_name[PKEY_ALGO__LAST];
+extern const struct public_key_algorithm *pkey_algo[PKEY_ALGO__LAST];
 
 enum pkey_hash_algo {
 	PKEY_HASH_MD4,
-- 
cgit 


From bee7f9c83e1d18af6fee06b97b6558cbd1cded45 Mon Sep 17 00:00:00 2001
From: Yinghai Lu <yinghai@kernel.org>
Date: Fri, 6 Sep 2013 19:08:00 -0700
Subject: ACPI / x86: Increase override tables number limit

Current ACPI tables in initrd is limited to 10, that is too small.
64 should be good enough as we have 35 sigs and could have several
SSDT.

Two problems in current code prevent us from increasing limit:
 1. The cpio file info array is put in stack, as every element is 32
    bytes, could run out of stack if we have that array size to 64.
    We can move it out from stack, make it global and put it into the
    __initdata section.
 2. early_ioremap() only can remap 256k one time. Current code maps
    10 tables at a time. If we increased that limit, the whole size
    could be more than 256k, so early_ioremap() would fail with that.
    We can map chunks one by one during copying, instead of mapping
    all of them together.

Signed-off-by: Yinghai <yinghai@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
Tested-by: Thomas Renninger <trenn@suse.de>
Reviewed-by: Tang Chen <tangchen@cn.fujitsu.com>
Tested-by: Tang Chen <tangchen@cn.fujitsu.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/x86/include/asm/acpi.h |  1 +
 drivers/acpi/osl.c          | 44 ++++++++++++++++++++++++++++++++------------
 2 files changed, 33 insertions(+), 12 deletions(-)

diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index b1977bad5435..c8c1e700c26e 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -26,6 +26,7 @@
 #include <acpi/pdc_intel.h>
 
 #include <asm/numa.h>
+#include <asm/fixmap.h>
 #include <asm/processor.h>
 #include <asm/mmu.h>
 #include <asm/mpspec.h>
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index e5f416c7f66e..88bb9d05b038 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -569,8 +569,10 @@ static const char * const table_sigs[] = {
 
 #define ACPI_HEADER_SIZE sizeof(struct acpi_table_header)
 
-/* Must not increase 10 or needs code modification below */
-#define ACPI_OVERRIDE_TABLES 10
+#define ACPI_OVERRIDE_TABLES 64
+static struct cpio_data __initdata acpi_initrd_files[ACPI_OVERRIDE_TABLES];
+
+#define MAP_CHUNK_SIZE   (NR_FIX_BTMAPS << PAGE_SHIFT)
 
 void __init acpi_initrd_override(void *data, size_t size)
 {
@@ -579,8 +581,6 @@ void __init acpi_initrd_override(void *data, size_t size)
 	struct acpi_table_header *table;
 	char cpio_path[32] = "kernel/firmware/acpi/";
 	struct cpio_data file;
-	struct cpio_data early_initrd_files[ACPI_OVERRIDE_TABLES];
-	char *p;
 
 	if (data == NULL || size == 0)
 		return;
@@ -625,8 +625,8 @@ void __init acpi_initrd_override(void *data, size_t size)
 			table->signature, cpio_path, file.name, table->length);
 
 		all_tables_size += table->length;
-		early_initrd_files[table_nr].data = file.data;
-		early_initrd_files[table_nr].size = file.size;
+		acpi_initrd_files[table_nr].data = file.data;
+		acpi_initrd_files[table_nr].size = file.size;
 		table_nr++;
 	}
 	if (table_nr == 0)
@@ -652,14 +652,34 @@ void __init acpi_initrd_override(void *data, size_t size)
 	memblock_reserve(acpi_tables_addr, all_tables_size);
 	arch_reserve_mem_area(acpi_tables_addr, all_tables_size);
 
-	p = early_ioremap(acpi_tables_addr, all_tables_size);
-
+	/*
+	 * early_ioremap only can remap 256k one time. If we map all
+	 * tables one time, we will hit the limit. Need to map chunks
+	 * one by one during copying the same as that in relocate_initrd().
+	 */
 	for (no = 0; no < table_nr; no++) {
-		memcpy(p + total_offset, early_initrd_files[no].data,
-		       early_initrd_files[no].size);
-		total_offset += early_initrd_files[no].size;
+		unsigned char *src_p = acpi_initrd_files[no].data;
+		phys_addr_t size = acpi_initrd_files[no].size;
+		phys_addr_t dest_addr = acpi_tables_addr + total_offset;
+		phys_addr_t slop, clen;
+		char *dest_p;
+
+		total_offset += size;
+
+		while (size) {
+			slop = dest_addr & ~PAGE_MASK;
+			clen = size;
+			if (clen > MAP_CHUNK_SIZE - slop)
+				clen = MAP_CHUNK_SIZE - slop;
+			dest_p = early_ioremap(dest_addr & PAGE_MASK,
+						 clen + slop);
+			memcpy(dest_p + slop, src_p, clen);
+			early_iounmap(dest_p, clen + slop);
+			src_p += clen;
+			dest_addr += clen;
+			size -= clen;
+		}
 	}
-	early_iounmap(p, all_tables_size);
 }
 #endif /* CONFIG_ACPI_INITRD_TABLE_OVERRIDE */
 
-- 
cgit 


From 302822996fd572676bb66a7c4351f6faa0e4ddfd Mon Sep 17 00:00:00 2001
From: Liu Chuansheng <chuansheng.liu@intel.com>
Date: Thu, 12 Sep 2013 01:42:57 +0800
Subject: ACPI / osl: implement acpi_os_sleep() with msleep()

Currently, acpi_os_sleep() uses schedule_timeout_interruptible()
which can be interrupted by a signal, and that causes the real sleep
time to be shorter.

According to the ACPI spec:

 The Sleep term is used to implement long-term timing requirements.
 Execution is delayed for at least the required number of milliseconds.

The sleeping time should be at least the required number msecs, so use
msleep() which guarantees that to implement it.

Signed-off-by: Liu Chuansheng <chuansheng.liu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/osl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index e5f416c7f66e..b1629b571cb2 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -820,7 +820,7 @@ acpi_status acpi_os_remove_interrupt_handler(u32 irq, acpi_osd_handler handler)
 
 void acpi_os_sleep(u64 ms)
 {
-	schedule_timeout_interruptible(msecs_to_jiffies(ms));
+	msleep(ms);
 }
 
 void acpi_os_stall(u32 us)
-- 
cgit 


From 763f527b68c6b026439f0b12ebe232d96b5563df Mon Sep 17 00:00:00 2001
From: Lan Tianyu <tianyu.lan@intel.com>
Date: Thu, 12 Sep 2013 03:32:03 -0400
Subject: ACPI / button: Using input_set_capability() to mark device's event
 capability

Input layer provides input_set_capability() to set input device's event
related bits. This patch is to use it to replace origin code.

Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/button.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index a55773801c5f..c971929d75c2 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -383,18 +383,15 @@ static int acpi_button_add(struct acpi_device *device)
 
 	switch (button->type) {
 	case ACPI_BUTTON_TYPE_POWER:
-		input->evbit[0] = BIT_MASK(EV_KEY);
-		set_bit(KEY_POWER, input->keybit);
+		input_set_capability(input, EV_KEY, KEY_POWER);
 		break;
 
 	case ACPI_BUTTON_TYPE_SLEEP:
-		input->evbit[0] = BIT_MASK(EV_KEY);
-		set_bit(KEY_SLEEP, input->keybit);
+		input_set_capability(input, EV_KEY, KEY_SLEEP);
 		break;
 
 	case ACPI_BUTTON_TYPE_LID:
-		input->evbit[0] = BIT_MASK(EV_SW);
-		set_bit(SW_LID, input->swbit);
+		input_set_capability(input, EV_SW, SW_LID);
 		break;
 	}
 
-- 
cgit 


From 16a26e85279fd672050ffc3637038366629e8653 Mon Sep 17 00:00:00 2001
From: Lan Tianyu <tianyu.lan@intel.com>
Date: Thu, 12 Sep 2013 03:32:04 -0400
Subject: ACPI / EC: Convert all printk() calls to dynamic debug function

This patch is to convert all printks in the ec driver to pr_debug/info/err
and define pr_fmt macro to replace PREFIX.

Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/ec.c | 49 ++++++++++++++++++++++++-------------------------
 1 file changed, 24 insertions(+), 25 deletions(-)

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index a06d98374705..d5309fd49458 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -28,6 +28,7 @@
 
 /* Uncomment next line to get verbose printout */
 /* #define DEBUG */
+#define pr_fmt(fmt) "ACPI : EC: " fmt
 
 #include <linux/kernel.h>
 #include <linux/module.h>
@@ -49,9 +50,6 @@
 #define ACPI_EC_DEVICE_NAME		"Embedded Controller"
 #define ACPI_EC_FILE_INFO		"info"
 
-#undef PREFIX
-#define PREFIX				"ACPI: EC: "
-
 /* EC status register */
 #define ACPI_EC_FLAG_OBF	0x01	/* Output buffer full */
 #define ACPI_EC_FLAG_IBF	0x02	/* Input buffer full */
@@ -131,26 +129,26 @@ static int EC_FLAGS_SKIP_DSDT_SCAN; /* Not all BIOS survive early DSDT scan */
 static inline u8 acpi_ec_read_status(struct acpi_ec *ec)
 {
 	u8 x = inb(ec->command_addr);
-	pr_debug(PREFIX "---> status = 0x%2.2x\n", x);
+	pr_debug("---> status = 0x%2.2x\n", x);
 	return x;
 }
 
 static inline u8 acpi_ec_read_data(struct acpi_ec *ec)
 {
 	u8 x = inb(ec->data_addr);
-	pr_debug(PREFIX "---> data = 0x%2.2x\n", x);
+	pr_debug("---> data = 0x%2.2x\n", x);
 	return x;
 }
 
 static inline void acpi_ec_write_cmd(struct acpi_ec *ec, u8 command)
 {
-	pr_debug(PREFIX "<--- command = 0x%2.2x\n", command);
+	pr_debug("<--- command = 0x%2.2x\n", command);
 	outb(command, ec->command_addr);
 }
 
 static inline void acpi_ec_write_data(struct acpi_ec *ec, u8 data)
 {
-	pr_debug(PREFIX "<--- data = 0x%2.2x\n", data);
+	pr_debug("<--- data = 0x%2.2x\n", data);
 	outb(data, ec->data_addr);
 }
 
@@ -241,7 +239,7 @@ static int ec_poll(struct acpi_ec *ec)
 			}
 			advance_transaction(ec, acpi_ec_read_status(ec));
 		} while (time_before(jiffies, delay));
-		pr_debug(PREFIX "controller reset, restart transaction\n");
+		pr_debug("controller reset, restart transaction\n");
 		spin_lock_irqsave(&ec->lock, flags);
 		start_transaction(ec);
 		spin_unlock_irqrestore(&ec->lock, flags);
@@ -309,12 +307,12 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t)
 		}
 	}
 	if (ec_wait_ibf0(ec)) {
-		pr_err(PREFIX "input buffer is not empty, "
+		pr_err("input buffer is not empty, "
 				"aborting transaction\n");
 		status = -ETIME;
 		goto end;
 	}
-	pr_debug(PREFIX "transaction start (cmd=0x%02x, addr=0x%02x)\n",
+	pr_debug("transaction start (cmd=0x%02x, addr=0x%02x)\n",
 			t->command, t->wdata ? t->wdata[0] : 0);
 	/* disable GPE during transaction if storm is detected */
 	if (test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) {
@@ -331,12 +329,12 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t)
 		/* It is safe to enable the GPE outside of the transaction. */
 		acpi_enable_gpe(NULL, ec->gpe);
 	} else if (t->irq_count > ec_storm_threshold) {
-		pr_info(PREFIX "GPE storm detected(%d GPEs), "
+		pr_info("GPE storm detected(%d GPEs), "
 			"transactions will use polling mode\n",
 			t->irq_count);
 		set_bit(EC_FLAGS_GPE_STORM, &ec->flags);
 	}
-	pr_debug(PREFIX "transaction end\n");
+	pr_debug("transaction end\n");
 end:
 	if (ec->global_lock)
 		acpi_release_global_lock(glk);
@@ -570,12 +568,12 @@ static void acpi_ec_run(void *cxt)
 	struct acpi_ec_query_handler *handler = cxt;
 	if (!handler)
 		return;
-	pr_debug(PREFIX "start query execution\n");
+	pr_debug("start query execution\n");
 	if (handler->func)
 		handler->func(handler->data);
 	else if (handler->handle)
 		acpi_evaluate_object(handler->handle, NULL, NULL, NULL);
-	pr_debug(PREFIX "stop query execution\n");
+	pr_debug("stop query execution\n");
 	kfree(handler);
 }
 
@@ -593,7 +591,8 @@ static int acpi_ec_sync_query(struct acpi_ec *ec)
 			if (!copy)
 				return -ENOMEM;
 			memcpy(copy, handler, sizeof(*copy));
-			pr_debug(PREFIX "push query execution (0x%2x) on queue\n", value);
+			pr_debug("push query execution (0x%2x) on queue\n",
+				value);
 			return acpi_os_execute((copy->func) ?
 				OSL_NOTIFY_HANDLER : OSL_GPE_HANDLER,
 				acpi_ec_run, copy);
@@ -616,7 +615,7 @@ static int ec_check_sci(struct acpi_ec *ec, u8 state)
 {
 	if (state & ACPI_EC_FLAG_SCI) {
 		if (!test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags)) {
-			pr_debug(PREFIX "push gpe query to the queue\n");
+			pr_debug("push gpe query to the queue\n");
 			return acpi_os_execute(OSL_NOTIFY_HANDLER,
 				acpi_ec_gpe_query, ec);
 		}
@@ -630,7 +629,7 @@ static u32 acpi_ec_gpe_handler(acpi_handle gpe_device,
 	struct acpi_ec *ec = data;
 	u8 status = acpi_ec_read_status(ec);
 
-	pr_debug(PREFIX "~~~> interrupt, status:0x%02x\n", status);
+	pr_debug("~~~> interrupt, status:0x%02x\n", status);
 
 	advance_transaction(ec, status);
 	if (ec_transaction_done(ec) &&
@@ -776,7 +775,7 @@ static int ec_install_handlers(struct acpi_ec *ec)
 			 * The AE_NOT_FOUND error will be ignored and OS
 			 * continue to initialize EC.
 			 */
-			printk(KERN_ERR "Fail in evaluating the _REG object"
+			pr_err("Fail in evaluating the _REG object"
 				" of EC device. Broken bios is suspected.\n");
 		} else {
 			acpi_remove_gpe_handler(NULL, ec->gpe,
@@ -795,10 +794,10 @@ static void ec_remove_handlers(struct acpi_ec *ec)
 	acpi_disable_gpe(NULL, ec->gpe);
 	if (ACPI_FAILURE(acpi_remove_address_space_handler(ec->handle,
 				ACPI_ADR_SPACE_EC, &acpi_ec_space_handler)))
-		pr_err(PREFIX "failed to remove space handler\n");
+		pr_err("failed to remove space handler\n");
 	if (ACPI_FAILURE(acpi_remove_gpe_handler(NULL, ec->gpe,
 				&acpi_ec_gpe_handler)))
-		pr_err(PREFIX "failed to remove gpe handler\n");
+		pr_err("failed to remove gpe handler\n");
 	clear_bit(EC_FLAGS_HANDLERS_INSTALLED, &ec->flags);
 }
 
@@ -840,7 +839,7 @@ static int acpi_ec_add(struct acpi_device *device)
 	ret = !!request_region(ec->command_addr, 1, "EC cmd");
 	WARN(!ret, "Could not request EC cmd io port 0x%lx", ec->command_addr);
 
-	pr_info(PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n",
+	pr_info("GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n",
 			  ec->gpe, ec->command_addr, ec->data_addr);
 
 	ret = ec_install_handlers(ec);
@@ -931,7 +930,7 @@ static int ec_validate_ecdt(const struct dmi_system_id *id)
 /* MSI EC needs special treatment, enable it */
 static int ec_flag_msi(const struct dmi_system_id *id)
 {
-	printk(KERN_DEBUG PREFIX "Detected MSI hardware, enabling workarounds.\n");
+	pr_debug("Detected MSI hardware, enabling workarounds.\n");
 	EC_FLAGS_MSI = 1;
 	EC_FLAGS_VALIDATE_ECDT = 1;
 	return 0;
@@ -1010,7 +1009,7 @@ int __init acpi_ec_ecdt_probe(void)
 	status = acpi_get_table(ACPI_SIG_ECDT, 1,
 				(struct acpi_table_header **)&ecdt_ptr);
 	if (ACPI_SUCCESS(status)) {
-		pr_info(PREFIX "EC description table is found, configuring boot EC\n");
+		pr_info("EC description table is found, configuring boot EC\n");
 		boot_ec->command_addr = ecdt_ptr->control.address;
 		boot_ec->data_addr = ecdt_ptr->data.address;
 		boot_ec->gpe = ecdt_ptr->gpe;
@@ -1030,7 +1029,7 @@ int __init acpi_ec_ecdt_probe(void)
 
 	/* This workaround is needed only on some broken machines,
 	 * which require early EC, but fail to provide ECDT */
-	printk(KERN_DEBUG PREFIX "Look up EC in DSDT\n");
+	pr_debug("Look up EC in DSDT\n");
 	status = acpi_get_devices(ec_device_ids[0].id, ec_parse_device,
 					boot_ec, NULL);
 	/* Check that acpi_get_devices actually find something */
@@ -1042,7 +1041,7 @@ int __init acpi_ec_ecdt_probe(void)
 		    saved_ec->data_addr != boot_ec->data_addr ||
 		    saved_ec->gpe != boot_ec->gpe ||
 		    saved_ec->handle != boot_ec->handle)
-			pr_info(PREFIX "ASUSTek keeps feeding us with broken "
+			pr_info("ASUSTek keeps feeding us with broken "
 			"ECDT tables, which are very hard to workaround. "
 			"Trying to use DSDT EC info instead. Please send "
 			"output of acpidump to linux-acpi@vger.kernel.org\n");
-- 
cgit 


From c48b156517348a0130e9e6edbeba95f9b4e50d65 Mon Sep 17 00:00:00 2001
From: Lan Tianyu <tianyu.lan@intel.com>
Date: Thu, 12 Sep 2013 03:32:05 -0400
Subject: ACPI / sysfs: make GPE sysfs attributes only accept correct values

According to the design, GPE sysfs attributes should accept "disable",
"enable", "clear" and integer numbers as params. Current code checks
"disable", "enable" and "clear" first. If the param doesn't match,
pass it to strtoul() as a string representing an integer number and
assign the return value to the given GPE count. It is missing the check
of whether or not the param really represents an integer number and
strtoul() will return 0 if the string is not a number.  This causes any
params except for "enable", "disable", "clear" and a number to make the
GPE count become 0. This patch is to use kstrtoul() to replace strtoul()
and check the return value. If the convertion is successful, use as the
new GPE count. If not, return an error.

Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/sysfs.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index 05306a59aedc..b55778704444 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -564,6 +564,7 @@ static ssize_t counter_set(struct kobject *kobj,
 	acpi_event_status status;
 	acpi_handle handle;
 	int result = 0;
+	unsigned long tmp;
 
 	if (index == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI) {
 		int i;
@@ -596,8 +597,10 @@ static ssize_t counter_set(struct kobject *kobj,
 		else if (!strcmp(buf, "clear\n") &&
 			 (status & ACPI_EVENT_FLAG_SET))
 			result = acpi_clear_gpe(handle, index);
+		else if (!kstrtoul(buf, 0, &tmp))
+			all_counters[index].count = tmp;
 		else
-			all_counters[index].count = strtoul(buf, NULL, 0);
+			result = -EINVAL;
 	} else if (index < num_gpes + ACPI_NUM_FIXED_EVENTS) {
 		int event = index - num_gpes;
 		if (!strcmp(buf, "disable\n") &&
@@ -609,8 +612,10 @@ static ssize_t counter_set(struct kobject *kobj,
 		else if (!strcmp(buf, "clear\n") &&
 			 (status & ACPI_EVENT_FLAG_SET))
 			result = acpi_clear_event(event);
+		else if (!kstrtoul(buf, 0, &tmp))
+			all_counters[index].count = tmp;
 		else
-			all_counters[index].count = strtoul(buf, NULL, 0);
+			result = -EINVAL;
 	} else
 		all_counters[index].count = strtoul(buf, NULL, 0);
 
-- 
cgit 


From 67f7d60b3a08a3e3ec51c29c25767a9d9d0bd2b1 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 30 Aug 2013 16:15:24 +0100
Subject: KEYS: Store public key algo ID in public_key struct

Store public key algo ID in public_key struct for reference purposes.  This
allows it to be removed from the x509_certificate struct and used to find a
default in public_key_verify_signature().

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Josh Boyer <jwboyer@redhat.com>
---
 crypto/asymmetric_keys/x509_cert_parser.c | 5 +++--
 crypto/asymmetric_keys/x509_parser.h      | 1 -
 crypto/asymmetric_keys/x509_public_key.c  | 4 ++--
 include/crypto/public_key.h               | 1 +
 4 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/crypto/asymmetric_keys/x509_cert_parser.c b/crypto/asymmetric_keys/x509_cert_parser.c
index facbf26bc6bb..8cc253d2dc92 100644
--- a/crypto/asymmetric_keys/x509_cert_parser.c
+++ b/crypto/asymmetric_keys/x509_cert_parser.c
@@ -343,8 +343,9 @@ int x509_extract_key_data(void *context, size_t hdrlen,
 	if (ctx->last_oid != OID_rsaEncryption)
 		return -ENOPKG;
 
-	/* There seems to be an extraneous 0 byte on the front of the data */
-	ctx->cert->pkey_algo = PKEY_ALGO_RSA;
+	ctx->cert->pub->pkey_algo = PKEY_ALGO_RSA;
+
+	/* Discard the BIT STRING metadata */
 	ctx->key = value + 1;
 	ctx->key_size = vlen - 1;
 	return 0;
diff --git a/crypto/asymmetric_keys/x509_parser.h b/crypto/asymmetric_keys/x509_parser.h
index f86dc5fcc4ad..e583ad09e5a1 100644
--- a/crypto/asymmetric_keys/x509_parser.h
+++ b/crypto/asymmetric_keys/x509_parser.h
@@ -20,7 +20,6 @@ struct x509_certificate {
 	char		*authority;		/* Authority key fingerprint as hex */
 	struct tm	valid_from;
 	struct tm	valid_to;
-	enum pkey_algo	pkey_algo : 8;		/* Public key algorithm */
 	enum pkey_algo	sig_pkey_algo : 8;	/* Signature public key algorithm */
 	enum pkey_hash_algo sig_hash_algo : 8;	/* Signature hash algorithm */
 	const void	*tbs;			/* Signed data */
diff --git a/crypto/asymmetric_keys/x509_public_key.c b/crypto/asymmetric_keys/x509_public_key.c
index fe38628adae9..fac574c457b3 100644
--- a/crypto/asymmetric_keys/x509_public_key.c
+++ b/crypto/asymmetric_keys/x509_public_key.c
@@ -108,7 +108,7 @@ static int x509_key_preparse(struct key_preparsed_payload *prep)
 
 	pr_devel("Cert Issuer: %s\n", cert->issuer);
 	pr_devel("Cert Subject: %s\n", cert->subject);
-	pr_devel("Cert Key Algo: %s\n", pkey_algo_name[cert->pkey_algo]);
+	pr_devel("Cert Key Algo: %s\n", pkey_algo_name[cert->pub->pkey_algo]);
 	pr_devel("Cert Valid From: %04ld-%02d-%02d %02d:%02d:%02d\n",
 		 cert->valid_from.tm_year + 1900, cert->valid_from.tm_mon + 1,
 		 cert->valid_from.tm_mday, cert->valid_from.tm_hour,
@@ -165,7 +165,7 @@ static int x509_key_preparse(struct key_preparsed_payload *prep)
 		goto error_free_cert;
 	}
 
-	cert->pub->algo = pkey_algo[cert->pkey_algo];
+	cert->pub->algo = pkey_algo[cert->pub->pkey_algo];
 	cert->pub->id_type = PKEY_ID_X509;
 
 	/* Check the signature on the key */
diff --git a/include/crypto/public_key.h b/include/crypto/public_key.h
index 46bde250bfae..05778df0e3b4 100644
--- a/include/crypto/public_key.h
+++ b/include/crypto/public_key.h
@@ -60,6 +60,7 @@ struct public_key {
 #define PKEY_CAN_DECRYPT	0x02
 #define PKEY_CAN_SIGN		0x04
 #define PKEY_CAN_VERIFY		0x08
+	enum pkey_algo pkey_algo : 8;
 	enum pkey_id_type id_type : 8;
 	union {
 		MPI	mpi[5];
-- 
cgit 


From 3d167d68e3805ee45ed2e8412fc03ed919c54c24 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 30 Aug 2013 16:15:30 +0100
Subject: KEYS: Split public_key_verify_signature() and make available

Modify public_key_verify_signature() so that it now takes a public_key struct
rather than a key struct and supply a wrapper that takes a key struct.  The
wrapper is then used by the asymmetric key subtype and the modified function is
used by X.509 self-signature checking and can be used by other things also.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Josh Boyer <jwboyer@redhat.com>
---
 crypto/asymmetric_keys/public_key.c      | 40 +++++++++++++++++++++++++-------
 crypto/asymmetric_keys/public_key.h      |  6 +++++
 crypto/asymmetric_keys/x509_public_key.c |  2 +-
 3 files changed, 39 insertions(+), 9 deletions(-)

diff --git a/crypto/asymmetric_keys/public_key.c b/crypto/asymmetric_keys/public_key.c
index 796ce0802aa0..49ac8d848ed1 100644
--- a/crypto/asymmetric_keys/public_key.c
+++ b/crypto/asymmetric_keys/public_key.c
@@ -86,21 +86,45 @@ EXPORT_SYMBOL_GPL(public_key_destroy);
 /*
  * Verify a signature using a public key.
  */
-static int public_key_verify_signature(const struct key *key,
-				       const struct public_key_signature *sig)
+int public_key_verify_signature(const struct public_key *pk,
+				const struct public_key_signature *sig)
 {
-	const struct public_key *pk = key->payload.data;
+	const struct public_key_algorithm *algo;
+
+	BUG_ON(!pk);
+	BUG_ON(!pk->mpi[0]);
+	BUG_ON(!pk->mpi[1]);
+	BUG_ON(!sig);
+	BUG_ON(!sig->digest);
+	BUG_ON(!sig->mpi[0]);
+
+	algo = pk->algo;
+	if (!algo) {
+		if (pk->pkey_algo >= PKEY_ALGO__LAST)
+			return -ENOPKG;
+		algo = pkey_algo[pk->pkey_algo];
+		if (!algo)
+			return -ENOPKG;
+	}
 
-	if (!pk->algo->verify_signature)
+	if (!algo->verify_signature)
 		return -ENOTSUPP;
 
-	if (sig->nr_mpi != pk->algo->n_sig_mpi) {
+	if (sig->nr_mpi != algo->n_sig_mpi) {
 		pr_debug("Signature has %u MPI not %u\n",
-			 sig->nr_mpi, pk->algo->n_sig_mpi);
+			 sig->nr_mpi, algo->n_sig_mpi);
 		return -EINVAL;
 	}
 
-	return pk->algo->verify_signature(pk, sig);
+	return algo->verify_signature(pk, sig);
+}
+EXPORT_SYMBOL_GPL(public_key_verify_signature);
+
+static int public_key_verify_signature_2(const struct key *key,
+					 const struct public_key_signature *sig)
+{
+	const struct public_key *pk = key->payload.data;
+	return public_key_verify_signature(pk, sig);
 }
 
 /*
@@ -111,6 +135,6 @@ struct asymmetric_key_subtype public_key_subtype = {
 	.name			= "public_key",
 	.describe		= public_key_describe,
 	.destroy		= public_key_destroy,
-	.verify_signature	= public_key_verify_signature,
+	.verify_signature	= public_key_verify_signature_2,
 };
 EXPORT_SYMBOL_GPL(public_key_subtype);
diff --git a/crypto/asymmetric_keys/public_key.h b/crypto/asymmetric_keys/public_key.h
index 5e5e35626899..5c37a22a0637 100644
--- a/crypto/asymmetric_keys/public_key.h
+++ b/crypto/asymmetric_keys/public_key.h
@@ -28,3 +28,9 @@ struct public_key_algorithm {
 };
 
 extern const struct public_key_algorithm RSA_public_key_algorithm;
+
+/*
+ * public_key.c
+ */
+extern int public_key_verify_signature(const struct public_key *pk,
+				       const struct public_key_signature *sig);
diff --git a/crypto/asymmetric_keys/x509_public_key.c b/crypto/asymmetric_keys/x509_public_key.c
index fac574c457b3..8cb2f7075479 100644
--- a/crypto/asymmetric_keys/x509_public_key.c
+++ b/crypto/asymmetric_keys/x509_public_key.c
@@ -76,7 +76,7 @@ static int x509_check_signature(const struct public_key *pub,
 	if (ret < 0)
 		goto error_mpi;
 
-	ret = pub->algo->verify_signature(pub, sig);
+	ret = public_key_verify_signature(pub, sig);
 
 	pr_debug("Cert Verification: %d\n", ret);
 
-- 
cgit 


From 1573801fa89d022b9f5bd1b189d23221335f9f56 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 30 Aug 2013 16:15:37 +0100
Subject: KEYS: Store public key algo ID in public_key_signature struct

Store public key algorithm ID in public_key_signature struct for reference
purposes.  This allows a public_key_signature struct to be embedded in
struct x509_certificate and other places more easily.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Josh Boyer <jwboyer@redhat.com>
---
 include/crypto/public_key.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/crypto/public_key.h b/include/crypto/public_key.h
index 05778df0e3b4..b34fda4dcabf 100644
--- a/include/crypto/public_key.h
+++ b/include/crypto/public_key.h
@@ -90,6 +90,7 @@ struct public_key_signature {
 	u8 *digest;
 	u8 digest_size;			/* Number of bytes in digest */
 	u8 nr_mpi;			/* Occupancy of mpi[] */
+	enum pkey_algo pkey_algo : 8;
 	enum pkey_hash_algo pkey_hash_algo : 8;
 	union {
 		MPI mpi[2];
-- 
cgit 


From 57be4a784bf58eb41784aa3431165b455cf7e9c6 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 30 Aug 2013 16:16:34 +0100
Subject: X.509: struct x509_certificate needs struct tm declaring

struct x509_certificate needs struct tm declaring by #inclusion of linux/time.h
prior to its definition.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Josh Boyer <jwboyer@redhat.com>
---
 crypto/asymmetric_keys/x509_parser.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/crypto/asymmetric_keys/x509_parser.h b/crypto/asymmetric_keys/x509_parser.h
index e583ad09e5a1..2d0118214770 100644
--- a/crypto/asymmetric_keys/x509_parser.h
+++ b/crypto/asymmetric_keys/x509_parser.h
@@ -9,6 +9,7 @@
  * 2 of the Licence, or (at your option) any later version.
  */
 
+#include <linux/time.h>
 #include <crypto/public_key.h>
 
 struct x509_certificate {
-- 
cgit 


From b426beb6eeb0c81aeaa419f7444064abc9cb04ae Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 30 Aug 2013 16:18:02 +0100
Subject: X.509: Embed public_key_signature struct and create filler function

Embed a public_key_signature struct in struct x509_certificate, eliminating
now unnecessary fields, and split x509_check_signature() to create a filler
function for it that attaches a digest of the signed data and an MPI that
represents the signature data.  x509_free_certificate() is then modified to
deal with these.

Whilst we're at it, export both x509_check_signature() and the new
x509_get_sig_params().

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Josh Boyer <jwboyer@redhat.com>
---
 crypto/asymmetric_keys/x509_cert_parser.c | 30 +++++------
 crypto/asymmetric_keys/x509_parser.h      | 16 ++++--
 crypto/asymmetric_keys/x509_public_key.c  | 83 +++++++++++++++++--------------
 3 files changed, 74 insertions(+), 55 deletions(-)

diff --git a/crypto/asymmetric_keys/x509_cert_parser.c b/crypto/asymmetric_keys/x509_cert_parser.c
index 8cc253d2dc92..144201ccba0c 100644
--- a/crypto/asymmetric_keys/x509_cert_parser.c
+++ b/crypto/asymmetric_keys/x509_cert_parser.c
@@ -47,6 +47,8 @@ void x509_free_certificate(struct x509_certificate *cert)
 		kfree(cert->subject);
 		kfree(cert->fingerprint);
 		kfree(cert->authority);
+		kfree(cert->sig.digest);
+		mpi_free(cert->sig.rsa.s);
 		kfree(cert);
 	}
 }
@@ -152,33 +154,33 @@ int x509_note_pkey_algo(void *context, size_t hdrlen,
 		return -ENOPKG; /* Unsupported combination */
 
 	case OID_md4WithRSAEncryption:
-		ctx->cert->sig_hash_algo = PKEY_HASH_MD5;
-		ctx->cert->sig_pkey_algo = PKEY_ALGO_RSA;
+		ctx->cert->sig.pkey_hash_algo = PKEY_HASH_MD5;
+		ctx->cert->sig.pkey_algo = PKEY_ALGO_RSA;
 		break;
 
 	case OID_sha1WithRSAEncryption:
-		ctx->cert->sig_hash_algo = PKEY_HASH_SHA1;
-		ctx->cert->sig_pkey_algo = PKEY_ALGO_RSA;
+		ctx->cert->sig.pkey_hash_algo = PKEY_HASH_SHA1;
+		ctx->cert->sig.pkey_algo = PKEY_ALGO_RSA;
 		break;
 
 	case OID_sha256WithRSAEncryption:
-		ctx->cert->sig_hash_algo = PKEY_HASH_SHA256;
-		ctx->cert->sig_pkey_algo = PKEY_ALGO_RSA;
+		ctx->cert->sig.pkey_hash_algo = PKEY_HASH_SHA256;
+		ctx->cert->sig.pkey_algo = PKEY_ALGO_RSA;
 		break;
 
 	case OID_sha384WithRSAEncryption:
-		ctx->cert->sig_hash_algo = PKEY_HASH_SHA384;
-		ctx->cert->sig_pkey_algo = PKEY_ALGO_RSA;
+		ctx->cert->sig.pkey_hash_algo = PKEY_HASH_SHA384;
+		ctx->cert->sig.pkey_algo = PKEY_ALGO_RSA;
 		break;
 
 	case OID_sha512WithRSAEncryption:
-		ctx->cert->sig_hash_algo = PKEY_HASH_SHA512;
-		ctx->cert->sig_pkey_algo = PKEY_ALGO_RSA;
+		ctx->cert->sig.pkey_hash_algo = PKEY_HASH_SHA512;
+		ctx->cert->sig.pkey_algo = PKEY_ALGO_RSA;
 		break;
 
 	case OID_sha224WithRSAEncryption:
-		ctx->cert->sig_hash_algo = PKEY_HASH_SHA224;
-		ctx->cert->sig_pkey_algo = PKEY_ALGO_RSA;
+		ctx->cert->sig.pkey_hash_algo = PKEY_HASH_SHA224;
+		ctx->cert->sig.pkey_algo = PKEY_ALGO_RSA;
 		break;
 	}
 
@@ -203,8 +205,8 @@ int x509_note_signature(void *context, size_t hdrlen,
 		return -EINVAL;
 	}
 
-	ctx->cert->sig = value;
-	ctx->cert->sig_size = vlen;
+	ctx->cert->raw_sig = value;
+	ctx->cert->raw_sig_size = vlen;
 	return 0;
 }
 
diff --git a/crypto/asymmetric_keys/x509_parser.h b/crypto/asymmetric_keys/x509_parser.h
index 2d0118214770..87d9cc26f630 100644
--- a/crypto/asymmetric_keys/x509_parser.h
+++ b/crypto/asymmetric_keys/x509_parser.h
@@ -21,12 +21,11 @@ struct x509_certificate {
 	char		*authority;		/* Authority key fingerprint as hex */
 	struct tm	valid_from;
 	struct tm	valid_to;
-	enum pkey_algo	sig_pkey_algo : 8;	/* Signature public key algorithm */
-	enum pkey_hash_algo sig_hash_algo : 8;	/* Signature hash algorithm */
 	const void	*tbs;			/* Signed data */
-	size_t		tbs_size;		/* Size of signed data */
-	const void	*sig;			/* Signature data */
-	size_t		sig_size;		/* Size of sigature */
+	unsigned	tbs_size;		/* Size of signed data */
+	unsigned	raw_sig_size;		/* Size of sigature */
+	const void	*raw_sig;		/* Signature data */
+	struct public_key_signature sig;	/* Signature parameters */
 };
 
 /*
@@ -34,3 +33,10 @@ struct x509_certificate {
  */
 extern void x509_free_certificate(struct x509_certificate *cert);
 extern struct x509_certificate *x509_cert_parse(const void *data, size_t datalen);
+
+/*
+ * x509_public_key.c
+ */
+extern int x509_get_sig_params(struct x509_certificate *cert);
+extern int x509_check_signature(const struct public_key *pub,
+				struct x509_certificate *cert);
diff --git a/crypto/asymmetric_keys/x509_public_key.c b/crypto/asymmetric_keys/x509_public_key.c
index 8cb2f7075479..b7c81d8df08b 100644
--- a/crypto/asymmetric_keys/x509_public_key.c
+++ b/crypto/asymmetric_keys/x509_public_key.c
@@ -24,72 +24,83 @@
 #include "x509_parser.h"
 
 /*
- * Check the signature on a certificate using the provided public key
+ * Set up the signature parameters in an X.509 certificate.  This involves
+ * digesting the signed data and extracting the signature.
  */
-static int x509_check_signature(const struct public_key *pub,
-				const struct x509_certificate *cert)
+int x509_get_sig_params(struct x509_certificate *cert)
 {
-	struct public_key_signature *sig;
 	struct crypto_shash *tfm;
 	struct shash_desc *desc;
 	size_t digest_size, desc_size;
+	void *digest;
 	int ret;
 
 	pr_devel("==>%s()\n", __func__);
-	
+
+	if (cert->sig.rsa.s)
+		return 0;
+
+	cert->sig.rsa.s = mpi_read_raw_data(cert->raw_sig, cert->raw_sig_size);
+	if (!cert->sig.rsa.s)
+		return -ENOMEM;
+	cert->sig.nr_mpi = 1;
+
 	/* Allocate the hashing algorithm we're going to need and find out how
 	 * big the hash operational data will be.
 	 */
-	tfm = crypto_alloc_shash(pkey_hash_algo_name[cert->sig_hash_algo], 0, 0);
+	tfm = crypto_alloc_shash(pkey_hash_algo_name[cert->sig.pkey_hash_algo], 0, 0);
 	if (IS_ERR(tfm))
 		return (PTR_ERR(tfm) == -ENOENT) ? -ENOPKG : PTR_ERR(tfm);
 
 	desc_size = crypto_shash_descsize(tfm) + sizeof(*desc);
 	digest_size = crypto_shash_digestsize(tfm);
 
-	/* We allocate the hash operational data storage on the end of our
-	 * context data.
+	/* We allocate the hash operational data storage on the end of the
+	 * digest storage space.
 	 */
 	ret = -ENOMEM;
-	sig = kzalloc(sizeof(*sig) + desc_size + digest_size, GFP_KERNEL);
-	if (!sig)
-		goto error_no_sig;
+	digest = kzalloc(digest_size + desc_size, GFP_KERNEL);
+	if (!digest)
+		goto error;
 
-	sig->pkey_hash_algo	= cert->sig_hash_algo;
-	sig->digest		= (u8 *)sig + sizeof(*sig) + desc_size;
-	sig->digest_size	= digest_size;
+	cert->sig.digest = digest;
+	cert->sig.digest_size = digest_size;
 
-	desc = (void *)sig + sizeof(*sig);
-	desc->tfm	= tfm;
-	desc->flags	= CRYPTO_TFM_REQ_MAY_SLEEP;
+	desc = digest + digest_size;
+	desc->tfm = tfm;
+	desc->flags = CRYPTO_TFM_REQ_MAY_SLEEP;
 
 	ret = crypto_shash_init(desc);
 	if (ret < 0)
 		goto error;
+	might_sleep();
+	ret = crypto_shash_finup(desc, cert->tbs, cert->tbs_size, digest);
+error:
+	crypto_free_shash(tfm);
+	pr_devel("<==%s() = %d\n", __func__, ret);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(x509_get_sig_params);
 
-	ret = -ENOMEM;
-	sig->rsa.s = mpi_read_raw_data(cert->sig, cert->sig_size);
-	if (!sig->rsa.s)
-		goto error;
+/*
+ * Check the signature on a certificate using the provided public key
+ */
+int x509_check_signature(const struct public_key *pub,
+			 struct x509_certificate *cert)
+{
+	int ret;
 
-	ret = crypto_shash_finup(desc, cert->tbs, cert->tbs_size, sig->digest);
-	if (ret < 0)
-		goto error_mpi;
+	pr_devel("==>%s()\n", __func__);
 
-	ret = public_key_verify_signature(pub, sig);
+	ret = x509_get_sig_params(cert);
+	if (ret < 0)
+		return ret;
 
+	ret = public_key_verify_signature(pub, &cert->sig);
 	pr_debug("Cert Verification: %d\n", ret);
-
-error_mpi:
-	mpi_free(sig->rsa.s);
-error:
-	kfree(sig);
-error_no_sig:
-	crypto_free_shash(tfm);
-
-	pr_devel("<==%s() = %d\n", __func__, ret);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(x509_check_signature);
 
 /*
  * Attempt to parse a data blob for a key as an X509 certificate.
@@ -118,8 +129,8 @@ static int x509_key_preparse(struct key_preparsed_payload *prep)
 		 cert->valid_to.tm_mday, cert->valid_to.tm_hour,
 		 cert->valid_to.tm_min,  cert->valid_to.tm_sec);
 	pr_devel("Cert Signature: %s + %s\n",
-		 pkey_algo_name[cert->sig_pkey_algo],
-		 pkey_hash_algo_name[cert->sig_hash_algo]);
+		 pkey_algo_name[cert->sig.pkey_algo],
+		 pkey_hash_algo_name[cert->sig.pkey_hash_algo]);
 
 	if (!cert->fingerprint || !cert->authority) {
 		pr_warn("Cert for '%s' must have SubjKeyId and AuthKeyId extensions\n",
-- 
cgit 


From 2ecdb23b8c545fbee95caad0f2e45082787563ee Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 30 Aug 2013 16:18:15 +0100
Subject: X.509: Check the algorithm IDs obtained from parsing an X.509
 certificate

Check that the algorithm IDs obtained from the ASN.1 parse by OID lookup
corresponds to algorithms that are available to us.

Reported-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David Howells <dhowells@redhat.com>
---
 crypto/asymmetric_keys/x509_public_key.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/crypto/asymmetric_keys/x509_public_key.c b/crypto/asymmetric_keys/x509_public_key.c
index b7c81d8df08b..eb368d4c632c 100644
--- a/crypto/asymmetric_keys/x509_public_key.c
+++ b/crypto/asymmetric_keys/x509_public_key.c
@@ -119,6 +119,17 @@ static int x509_key_preparse(struct key_preparsed_payload *prep)
 
 	pr_devel("Cert Issuer: %s\n", cert->issuer);
 	pr_devel("Cert Subject: %s\n", cert->subject);
+
+	if (cert->pub->pkey_algo >= PKEY_ALGO__LAST ||
+	    cert->sig.pkey_algo >= PKEY_ALGO__LAST ||
+	    cert->sig.pkey_hash_algo >= PKEY_HASH__LAST ||
+	    !pkey_algo[cert->pub->pkey_algo] ||
+	    !pkey_algo[cert->sig.pkey_algo] ||
+	    !pkey_hash_algo_name[cert->sig.pkey_hash_algo]) {
+		ret = -ENOPKG;
+		goto error_free_cert;
+	}
+
 	pr_devel("Cert Key Algo: %s\n", pkey_algo_name[cert->pub->pkey_algo]);
 	pr_devel("Cert Valid From: %04ld-%02d-%02d %02d:%02d:%02d\n",
 		 cert->valid_from.tm_year + 1900, cert->valid_from.tm_mon + 1,
-- 
cgit 


From 17334cabc814f8847975cddc0e29291af6093464 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 30 Aug 2013 16:18:31 +0100
Subject: X.509: Handle certificates that lack an authorityKeyIdentifier field

Handle certificates that lack an authorityKeyIdentifier field by assuming
they're self-signed and checking their signatures against themselves.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Josh Boyer <jwboyer@redhat.com>
---
 crypto/asymmetric_keys/x509_public_key.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/crypto/asymmetric_keys/x509_public_key.c b/crypto/asymmetric_keys/x509_public_key.c
index eb368d4c632c..0f55e3b027a0 100644
--- a/crypto/asymmetric_keys/x509_public_key.c
+++ b/crypto/asymmetric_keys/x509_public_key.c
@@ -143,8 +143,8 @@ static int x509_key_preparse(struct key_preparsed_payload *prep)
 		 pkey_algo_name[cert->sig.pkey_algo],
 		 pkey_hash_algo_name[cert->sig.pkey_hash_algo]);
 
-	if (!cert->fingerprint || !cert->authority) {
-		pr_warn("Cert for '%s' must have SubjKeyId and AuthKeyId extensions\n",
+	if (!cert->fingerprint) {
+		pr_warn("Cert for '%s' must have a SubjKeyId extension\n",
 			cert->subject);
 		ret = -EKEYREJECTED;
 		goto error_free_cert;
@@ -190,8 +190,9 @@ static int x509_key_preparse(struct key_preparsed_payload *prep)
 	cert->pub->algo = pkey_algo[cert->pub->pkey_algo];
 	cert->pub->id_type = PKEY_ID_X509;
 
-	/* Check the signature on the key */
-	if (strcmp(cert->fingerprint, cert->authority) == 0) {
+	/* Check the signature on the key if it appears to be self-signed */
+	if (!cert->authority ||
+	    strcmp(cert->fingerprint, cert->authority) == 0) {
 		ret = x509_check_signature(cert->pub, cert);
 		if (ret < 0)
 			goto error_free_cert;
-- 
cgit 


From 124df926090b32a998483f6e43ebeccdbe5b5302 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Tue, 18 Jun 2013 17:40:44 +0100
Subject: X.509: Remove certificate date checks

Remove the certificate date checks that are performed when a certificate is
parsed.  There are two checks: a valid from and a valid to.  The first check is
causing a lot of problems with system clocks that don't keep good time and the
second places an implicit expiry date upon the kernel when used for module
signing, so do we really need them?

Signed-off-by: David Howells <dhowells@redhat.com>
cc: David Woodhouse <dwmw2@infradead.org>
cc: Rusty Russell <rusty@rustcorp.com.au>
cc: Josh Boyer <jwboyer@redhat.com>
cc: Alexander Holler <holler@ahsoftware.de>
cc: stable@vger.kernel.org
---
 crypto/asymmetric_keys/x509_public_key.c | 38 --------------------------------
 1 file changed, 38 deletions(-)

diff --git a/crypto/asymmetric_keys/x509_public_key.c b/crypto/asymmetric_keys/x509_public_key.c
index 0f55e3b027a0..c1540e8f454a 100644
--- a/crypto/asymmetric_keys/x509_public_key.c
+++ b/crypto/asymmetric_keys/x509_public_key.c
@@ -108,7 +108,6 @@ EXPORT_SYMBOL_GPL(x509_check_signature);
 static int x509_key_preparse(struct key_preparsed_payload *prep)
 {
 	struct x509_certificate *cert;
-	struct tm now;
 	size_t srlen, sulen;
 	char *desc = NULL;
 	int ret;
@@ -150,43 +149,6 @@ static int x509_key_preparse(struct key_preparsed_payload *prep)
 		goto error_free_cert;
 	}
 
-	time_to_tm(CURRENT_TIME.tv_sec, 0, &now);
-	pr_devel("Now: %04ld-%02d-%02d %02d:%02d:%02d\n",
-		 now.tm_year + 1900, now.tm_mon + 1, now.tm_mday,
-		 now.tm_hour, now.tm_min,  now.tm_sec);
-	if (now.tm_year < cert->valid_from.tm_year ||
-	    (now.tm_year == cert->valid_from.tm_year &&
-	     (now.tm_mon < cert->valid_from.tm_mon ||
-	      (now.tm_mon == cert->valid_from.tm_mon &&
-	       (now.tm_mday < cert->valid_from.tm_mday ||
-		(now.tm_mday == cert->valid_from.tm_mday &&
-		 (now.tm_hour < cert->valid_from.tm_hour ||
-		  (now.tm_hour == cert->valid_from.tm_hour &&
-		   (now.tm_min < cert->valid_from.tm_min ||
-		    (now.tm_min == cert->valid_from.tm_min &&
-		     (now.tm_sec < cert->valid_from.tm_sec
-		      ))))))))))) {
-		pr_warn("Cert %s is not yet valid\n", cert->fingerprint);
-		ret = -EKEYREJECTED;
-		goto error_free_cert;
-	}
-	if (now.tm_year > cert->valid_to.tm_year ||
-	    (now.tm_year == cert->valid_to.tm_year &&
-	     (now.tm_mon > cert->valid_to.tm_mon ||
-	      (now.tm_mon == cert->valid_to.tm_mon &&
-	       (now.tm_mday > cert->valid_to.tm_mday ||
-		(now.tm_mday == cert->valid_to.tm_mday &&
-		 (now.tm_hour > cert->valid_to.tm_hour ||
-		  (now.tm_hour == cert->valid_to.tm_hour &&
-		   (now.tm_min > cert->valid_to.tm_min ||
-		    (now.tm_min == cert->valid_to.tm_min &&
-		     (now.tm_sec > cert->valid_to.tm_sec
-		      ))))))))))) {
-		pr_warn("Cert %s has expired\n", cert->fingerprint);
-		ret = -EKEYEXPIRED;
-		goto error_free_cert;
-	}
-
 	cert->pub->algo = pkey_algo[cert->pub->pkey_algo];
 	cert->pub->id_type = PKEY_ID_X509;
 
-- 
cgit 


From f0e6d220a7cd93afa0260ac5e7849f00b05e035a Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 30 Aug 2013 16:07:13 +0100
Subject: KEYS: Load *.x509 files into kernel keyring

Load all the files matching the pattern "*.x509" that are to be found in kernel
base source dir and base build dir into the module signing keyring.

The "extra_certificates" file is then redundant.

Signed-off-by: David Howells <dhowells@redhat.com>
---
 kernel/Makefile              | 35 +++++++++++++++++++++++++++++------
 kernel/modsign_certificate.S |  3 +--
 2 files changed, 30 insertions(+), 8 deletions(-)

diff --git a/kernel/Makefile b/kernel/Makefile
index 1ce47553fb02..c34e5f993a21 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -142,17 +142,40 @@ $(obj)/timeconst.h: $(obj)/hz.bc $(src)/timeconst.bc FORCE
 	$(call if_changed,bc)
 
 ifeq ($(CONFIG_MODULE_SIG),y)
+###############################################################################
 #
-# Pull the signing certificate and any extra certificates into the kernel
+# Roll all the X.509 certificates that we can find together and pull
+# them into the kernel.
 #
+###############################################################################
+X509_CERTIFICATES-y := $(wildcard *.x509) $(wildcard $(srctree)/*.x509)
+X509_CERTIFICATES-$(CONFIG_MODULE_SIG) += signing_key.x509
+X509_CERTIFICATES := $(sort $(X509_CERTIFICATES-y))
+
+ifeq ($(X509_CERTIFICATES),)
+$(warning *** No X.509 certificates found ***)
+endif
+
+ifneq ($(wildcard $(obj)/.x509.list),)
+ifneq ($(shell cat $(obj)/.x509.list),$(X509_CERTIFICATES))
+$(info X.509 certificate list changed)
+$(shell rm $(obj)/.x509.list)
+endif
+endif
+
+kernel/modsign_certificate.o: $(obj)/x509_certificate_list
 
-quiet_cmd_touch = TOUCH   $@
-      cmd_touch = touch   $@
+quiet_cmd_x509certs  = CERTS   $@
+      cmd_x509certs  = cat $(X509_CERTIFICATES) /dev/null >$@
+targets += $(obj)/x509_certificate_list
+$(obj)/x509_certificate_list: $(X509_CERTIFICATES) $(obj)/.x509.list
+	$(call if_changed,x509certs)
 
-extra_certificates:
-	$(call cmd,touch)
+targets += $(obj)/.x509.list
+$(obj)/.x509.list:
+	@echo $(X509_CERTIFICATES) >$@
 
-kernel/modsign_certificate.o: signing_key.x509 extra_certificates
+clean-files := x509_certificate_list .x509.list
 
 ###############################################################################
 #
diff --git a/kernel/modsign_certificate.S b/kernel/modsign_certificate.S
index 4a9a86d12c8b..6fe03c7ffe72 100644
--- a/kernel/modsign_certificate.S
+++ b/kernel/modsign_certificate.S
@@ -7,6 +7,5 @@
 	.section ".init.data","aw"
 
 GLOBAL(modsign_certificate_list)
-	.incbin "signing_key.x509"
-	.incbin "extra_certificates"
+	.incbin "kernel/x509_certificate_list"
 GLOBAL(modsign_certificate_list_end)
-- 
cgit 


From 0fbd39cf7ffe3b6a787b66b672d21b84e4675352 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 30 Aug 2013 17:13:15 +0100
Subject: KEYS: Have make canonicalise the paths of the X.509 certs better to
 deduplicate

Have make canonicalise the paths of the X.509 certificates before we sort them
as this allows $(sort) to better remove duplicates.

Signed-off-by: David Howells <dhowells@redhat.com>
---
 kernel/Makefile | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/kernel/Makefile b/kernel/Makefile
index c34e5f993a21..2c24195249d5 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -144,13 +144,19 @@ $(obj)/timeconst.h: $(obj)/hz.bc $(src)/timeconst.bc FORCE
 ifeq ($(CONFIG_MODULE_SIG),y)
 ###############################################################################
 #
-# Roll all the X.509 certificates that we can find together and pull
-# them into the kernel.
+# Roll all the X.509 certificates that we can find together and pull them into
+# the kernel.
+#
+# We look in the source root and the build root for all files whose name ends
+# in ".x509".  Unfortunately, this will generate duplicate filenames, so we
+# have make canonicalise the pathnames and then sort them to discard the
+# duplicates.
 #
 ###############################################################################
 X509_CERTIFICATES-y := $(wildcard *.x509) $(wildcard $(srctree)/*.x509)
 X509_CERTIFICATES-$(CONFIG_MODULE_SIG) += signing_key.x509
-X509_CERTIFICATES := $(sort $(X509_CERTIFICATES-y))
+X509_CERTIFICATES := $(sort $(foreach CERT,$(X509_CERTIFICATES-y), \
+				$(or $(realpath $(CERT)),$(CERT))))
 
 ifeq ($(X509_CERTIFICATES),)
 $(warning *** No X.509 certificates found ***)
-- 
cgit 


From b56e5a17b6b9acd16997960504b9940d0d7984e7 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 30 Aug 2013 16:07:30 +0100
Subject: KEYS: Separate the kernel signature checking keyring from module
 signing

Separate the kernel signature checking keyring from module signing so that it
can be used by code other than the module-signing code.

Signed-off-by: David Howells <dhowells@redhat.com>
---
 include/keys/system_keyring.h |  23 ++++++++++
 init/Kconfig                  |  13 ++++++
 kernel/Makefile               |  15 ++++--
 kernel/modsign_certificate.S  |  11 -----
 kernel/modsign_pubkey.c       | 104 ------------------------------------------
 kernel/module-internal.h      |   2 -
 kernel/module_signing.c       |   3 +-
 kernel/system_certificates.S  |  12 +++++
 kernel/system_keyring.c       | 103 +++++++++++++++++++++++++++++++++++++++++
 9 files changed, 163 insertions(+), 123 deletions(-)
 create mode 100644 include/keys/system_keyring.h
 delete mode 100644 kernel/modsign_certificate.S
 delete mode 100644 kernel/modsign_pubkey.c
 create mode 100644 kernel/system_certificates.S
 create mode 100644 kernel/system_keyring.c

diff --git a/include/keys/system_keyring.h b/include/keys/system_keyring.h
new file mode 100644
index 000000000000..8dabc399bd1d
--- /dev/null
+++ b/include/keys/system_keyring.h
@@ -0,0 +1,23 @@
+/* System keyring containing trusted public keys.
+ *
+ * Copyright (C) 2013 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _KEYS_SYSTEM_KEYRING_H
+#define _KEYS_SYSTEM_KEYRING_H
+
+#ifdef CONFIG_SYSTEM_TRUSTED_KEYRING
+
+#include <linux/key.h>
+
+extern struct key *system_trusted_keyring;
+
+#endif
+
+#endif /* _KEYS_SYSTEM_KEYRING_H */
diff --git a/init/Kconfig b/init/Kconfig
index 3ecd8a1178f1..0ff5407a8378 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1668,6 +1668,18 @@ config BASE_SMALL
 	default 0 if BASE_FULL
 	default 1 if !BASE_FULL
 
+config SYSTEM_TRUSTED_KEYRING
+	bool "Provide system-wide ring of trusted keys"
+	depends on KEYS
+	help
+	  Provide a system keyring to which trusted keys can be added.  Keys in
+	  the keyring are considered to be trusted.  Keys may be added at will
+	  by the kernel from compiled-in data and from hardware key stores, but
+	  userspace may only add extra keys if those keys can be verified by
+	  keys already in the keyring.
+
+	  Keys in this keyring are used by module signature checking.
+
 menuconfig MODULES
 	bool "Enable loadable module support"
 	option modules
@@ -1741,6 +1753,7 @@ config MODULE_SRCVERSION_ALL
 config MODULE_SIG
 	bool "Module signature verification"
 	depends on MODULES
+	select SYSTEM_TRUSTED_KEYRING
 	select KEYS
 	select CRYPTO
 	select ASYMMETRIC_KEY_TYPE
diff --git a/kernel/Makefile b/kernel/Makefile
index 2c24195249d5..63136989c132 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -54,8 +54,9 @@ obj-$(CONFIG_SMP) += spinlock.o
 obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock.o
 obj-$(CONFIG_PROVE_LOCKING) += spinlock.o
 obj-$(CONFIG_UID16) += uid16.o
+obj-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += system_keyring.o system_certificates.o
 obj-$(CONFIG_MODULES) += module.o
-obj-$(CONFIG_MODULE_SIG) += module_signing.o modsign_pubkey.o modsign_certificate.o
+obj-$(CONFIG_MODULE_SIG) += module_signing.o
 obj-$(CONFIG_KALLSYMS) += kallsyms.o
 obj-$(CONFIG_BSD_PROCESS_ACCT) += acct.o
 obj-$(CONFIG_KEXEC) += kexec.o
@@ -141,11 +142,11 @@ targets += timeconst.h
 $(obj)/timeconst.h: $(obj)/hz.bc $(src)/timeconst.bc FORCE
 	$(call if_changed,bc)
 
-ifeq ($(CONFIG_MODULE_SIG),y)
 ###############################################################################
 #
 # Roll all the X.509 certificates that we can find together and pull them into
-# the kernel.
+# the kernel so that they get loaded into the system trusted keyring during
+# boot.
 #
 # We look in the source root and the build root for all files whose name ends
 # in ".x509".  Unfortunately, this will generate duplicate filenames, so we
@@ -153,6 +154,7 @@ ifeq ($(CONFIG_MODULE_SIG),y)
 # duplicates.
 #
 ###############################################################################
+ifeq ($(CONFIG_SYSTEM_TRUSTED_KEYRING),y)
 X509_CERTIFICATES-y := $(wildcard *.x509) $(wildcard $(srctree)/*.x509)
 X509_CERTIFICATES-$(CONFIG_MODULE_SIG) += signing_key.x509
 X509_CERTIFICATES := $(sort $(foreach CERT,$(X509_CERTIFICATES-y), \
@@ -169,10 +171,11 @@ $(shell rm $(obj)/.x509.list)
 endif
 endif
 
-kernel/modsign_certificate.o: $(obj)/x509_certificate_list
+kernel/system_certificates.o: $(obj)/x509_certificate_list
 
 quiet_cmd_x509certs  = CERTS   $@
-      cmd_x509certs  = cat $(X509_CERTIFICATES) /dev/null >$@
+      cmd_x509certs  = cat $(X509_CERTIFICATES) /dev/null >$@ $(foreach X509,$(X509_CERTIFICATES),; echo "  - Including cert $(X509)")
+
 targets += $(obj)/x509_certificate_list
 $(obj)/x509_certificate_list: $(X509_CERTIFICATES) $(obj)/.x509.list
 	$(call if_changed,x509certs)
@@ -182,7 +185,9 @@ $(obj)/.x509.list:
 	@echo $(X509_CERTIFICATES) >$@
 
 clean-files := x509_certificate_list .x509.list
+endif
 
+ifeq ($(CONFIG_MODULE_SIG),y)
 ###############################################################################
 #
 # If module signing is requested, say by allyesconfig, but a key has not been
diff --git a/kernel/modsign_certificate.S b/kernel/modsign_certificate.S
deleted file mode 100644
index 6fe03c7ffe72..000000000000
--- a/kernel/modsign_certificate.S
+++ /dev/null
@@ -1,11 +0,0 @@
-#include <linux/export.h>
-
-#define GLOBAL(name)	\
-	.globl VMLINUX_SYMBOL(name);	\
-	VMLINUX_SYMBOL(name):
-
-	.section ".init.data","aw"
-
-GLOBAL(modsign_certificate_list)
-	.incbin "kernel/x509_certificate_list"
-GLOBAL(modsign_certificate_list_end)
diff --git a/kernel/modsign_pubkey.c b/kernel/modsign_pubkey.c
deleted file mode 100644
index 7cbd4507a7e6..000000000000
--- a/kernel/modsign_pubkey.c
+++ /dev/null
@@ -1,104 +0,0 @@
-/* Public keys for module signature verification
- *
- * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/cred.h>
-#include <linux/err.h>
-#include <keys/asymmetric-type.h>
-#include "module-internal.h"
-
-struct key *modsign_keyring;
-
-extern __initconst const u8 modsign_certificate_list[];
-extern __initconst const u8 modsign_certificate_list_end[];
-
-/*
- * We need to make sure ccache doesn't cache the .o file as it doesn't notice
- * if modsign.pub changes.
- */
-static __initconst const char annoy_ccache[] = __TIME__ "foo";
-
-/*
- * Load the compiled-in keys
- */
-static __init int module_verify_init(void)
-{
-	pr_notice("Initialise module verification\n");
-
-	modsign_keyring = keyring_alloc(".module_sign",
-					KUIDT_INIT(0), KGIDT_INIT(0),
-					current_cred(),
-					((KEY_POS_ALL & ~KEY_POS_SETATTR) |
-					 KEY_USR_VIEW | KEY_USR_READ),
-					KEY_ALLOC_NOT_IN_QUOTA, NULL);
-	if (IS_ERR(modsign_keyring))
-		panic("Can't allocate module signing keyring\n");
-
-	return 0;
-}
-
-/*
- * Must be initialised before we try and load the keys into the keyring.
- */
-device_initcall(module_verify_init);
-
-/*
- * Load the compiled-in keys
- */
-static __init int load_module_signing_keys(void)
-{
-	key_ref_t key;
-	const u8 *p, *end;
-	size_t plen;
-
-	pr_notice("Loading module verification certificates\n");
-
-	end = modsign_certificate_list_end;
-	p = modsign_certificate_list;
-	while (p < end) {
-		/* Each cert begins with an ASN.1 SEQUENCE tag and must be more
-		 * than 256 bytes in size.
-		 */
-		if (end - p < 4)
-			goto dodgy_cert;
-		if (p[0] != 0x30 &&
-		    p[1] != 0x82)
-			goto dodgy_cert;
-		plen = (p[2] << 8) | p[3];
-		plen += 4;
-		if (plen > end - p)
-			goto dodgy_cert;
-
-		key = key_create_or_update(make_key_ref(modsign_keyring, 1),
-					   "asymmetric",
-					   NULL,
-					   p,
-					   plen,
-					   (KEY_POS_ALL & ~KEY_POS_SETATTR) |
-					   KEY_USR_VIEW,
-					   KEY_ALLOC_NOT_IN_QUOTA);
-		if (IS_ERR(key))
-			pr_err("MODSIGN: Problem loading in-kernel X.509 certificate (%ld)\n",
-			       PTR_ERR(key));
-		else
-			pr_notice("MODSIGN: Loaded cert '%s'\n",
-				  key_ref_to_ptr(key)->description);
-		p += plen;
-	}
-
-	return 0;
-
-dodgy_cert:
-	pr_err("MODSIGN: Problem parsing in-kernel X.509 certificate list\n");
-	return 0;
-}
-late_initcall(load_module_signing_keys);
diff --git a/kernel/module-internal.h b/kernel/module-internal.h
index 24f9247b7d02..915e123a430f 100644
--- a/kernel/module-internal.h
+++ b/kernel/module-internal.h
@@ -9,6 +9,4 @@
  * 2 of the Licence, or (at your option) any later version.
  */
 
-extern struct key *modsign_keyring;
-
 extern int mod_verify_sig(const void *mod, unsigned long *_modlen);
diff --git a/kernel/module_signing.c b/kernel/module_signing.c
index ee476404167b..0b6b870dc5e4 100644
--- a/kernel/module_signing.c
+++ b/kernel/module_signing.c
@@ -14,6 +14,7 @@
 #include <crypto/public_key.h>
 #include <crypto/hash.h>
 #include <keys/asymmetric-type.h>
+#include <keys/system_keyring.h>
 #include "module-internal.h"
 
 /*
@@ -157,7 +158,7 @@ static struct key *request_asymmetric_key(const char *signer, size_t signer_len,
 
 	pr_debug("Look up: \"%s\"\n", id);
 
-	key = keyring_search(make_key_ref(modsign_keyring, 1),
+	key = keyring_search(make_key_ref(system_trusted_keyring, 1),
 			     &key_type_asymmetric, id);
 	if (IS_ERR(key))
 		pr_warn("Request for unknown module key '%s' err %ld\n",
diff --git a/kernel/system_certificates.S b/kernel/system_certificates.S
new file mode 100644
index 000000000000..552d47b2d463
--- /dev/null
+++ b/kernel/system_certificates.S
@@ -0,0 +1,12 @@
+#include <linux/export.h>
+#include <linux/init.h>
+
+#define GLOBAL(name)	\
+	.globl VMLINUX_SYMBOL(name);	\
+	VMLINUX_SYMBOL(name):
+
+	__INITRODATA
+
+GLOBAL(system_certificate_list)
+	.incbin "kernel/x509_certificate_list"
+GLOBAL(system_certificate_list_end)
diff --git a/kernel/system_keyring.c b/kernel/system_keyring.c
new file mode 100644
index 000000000000..51c35141a13a
--- /dev/null
+++ b/kernel/system_keyring.c
@@ -0,0 +1,103 @@
+/* System trusted keyring for trusted public keys
+ *
+ * Copyright (C) 2012 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#include <linux/export.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/cred.h>
+#include <linux/err.h>
+#include <keys/asymmetric-type.h>
+#include <keys/system_keyring.h>
+#include "module-internal.h"
+
+struct key *system_trusted_keyring;
+EXPORT_SYMBOL_GPL(system_trusted_keyring);
+
+extern __initconst const u8 system_certificate_list[];
+extern __initconst const u8 system_certificate_list_end[];
+
+/*
+ * Load the compiled-in keys
+ */
+static __init int system_trusted_keyring_init(void)
+{
+	pr_notice("Initialise system trusted keyring\n");
+
+	system_trusted_keyring =
+		keyring_alloc(".system_keyring",
+			      KUIDT_INIT(0), KGIDT_INIT(0), current_cred(),
+			      ((KEY_POS_ALL & ~KEY_POS_SETATTR) |
+			       KEY_USR_VIEW | KEY_USR_READ),
+			      KEY_ALLOC_NOT_IN_QUOTA, NULL);
+	if (IS_ERR(system_trusted_keyring))
+		panic("Can't allocate system trusted keyring\n");
+
+	return 0;
+}
+
+/*
+ * Must be initialised before we try and load the keys into the keyring.
+ */
+device_initcall(system_trusted_keyring_init);
+
+/*
+ * Load the compiled-in list of X.509 certificates.
+ */
+static __init int load_system_certificate_list(void)
+{
+	key_ref_t key;
+	const u8 *p, *end;
+	size_t plen;
+
+	pr_notice("Loading compiled-in X.509 certificates\n");
+
+	end = system_certificate_list_end;
+	p = system_certificate_list;
+	while (p < end) {
+		/* Each cert begins with an ASN.1 SEQUENCE tag and must be more
+		 * than 256 bytes in size.
+		 */
+		if (end - p < 4)
+			goto dodgy_cert;
+		if (p[0] != 0x30 &&
+		    p[1] != 0x82)
+			goto dodgy_cert;
+		plen = (p[2] << 8) | p[3];
+		plen += 4;
+		if (plen > end - p)
+			goto dodgy_cert;
+
+		key = key_create_or_update(make_key_ref(system_trusted_keyring, 1),
+					   "asymmetric",
+					   NULL,
+					   p,
+					   plen,
+					   (KEY_POS_ALL & ~KEY_POS_SETATTR) |
+					   KEY_USR_VIEW,
+					   KEY_ALLOC_NOT_IN_QUOTA);
+		if (IS_ERR(key)) {
+			pr_err("Problem loading in-kernel X.509 certificate (%ld)\n",
+			       PTR_ERR(key));
+		} else {
+			pr_notice("Loaded X.509 cert '%s'\n",
+				  key_ref_to_ptr(key)->description);
+			key_ref_put(key);
+		}
+		p += plen;
+	}
+
+	return 0;
+
+dodgy_cert:
+	pr_err("Problem parsing in-kernel X.509 certificate list\n");
+	return 0;
+}
+late_initcall(load_system_certificate_list);
-- 
cgit 


From 008643b86c5f33c115c84ccdda1725cac3ad50ad Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 30 Aug 2013 16:07:37 +0100
Subject: KEYS: Add a 'trusted' flag and a 'trusted only' flag

Add KEY_FLAG_TRUSTED to indicate that a key either comes from a trusted source
or had a cryptographic signature chain that led back to a trusted key the
kernel already possessed.

Add KEY_FLAGS_TRUSTED_ONLY to indicate that a keyring will only accept links to
keys marked with KEY_FLAGS_TRUSTED.

Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
---
 include/linux/key-type.h | 1 +
 include/linux/key.h      | 3 +++
 kernel/system_keyring.c  | 4 +++-
 security/keys/key.c      | 8 ++++++++
 security/keys/keyring.c  | 4 ++++
 5 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/include/linux/key-type.h b/include/linux/key-type.h
index f58737bcb050..a74c3a84dfdd 100644
--- a/include/linux/key-type.h
+++ b/include/linux/key-type.h
@@ -45,6 +45,7 @@ struct key_preparsed_payload {
 	const void	*data;		/* Raw data */
 	size_t		datalen;	/* Raw datalen */
 	size_t		quotalen;	/* Quota length for proposed payload */
+	bool		trusted;	/* True if key is trusted */
 };
 
 typedef int (*request_key_actor_t)(struct key_construction *key,
diff --git a/include/linux/key.h b/include/linux/key.h
index 010dbb618aca..80d677483e31 100644
--- a/include/linux/key.h
+++ b/include/linux/key.h
@@ -168,6 +168,8 @@ struct key {
 #define KEY_FLAG_NEGATIVE	5	/* set if key is negative */
 #define KEY_FLAG_ROOT_CAN_CLEAR	6	/* set if key can be cleared by root without permission */
 #define KEY_FLAG_INVALIDATED	7	/* set if key has been invalidated */
+#define KEY_FLAG_TRUSTED	8	/* set if key is trusted */
+#define KEY_FLAG_TRUSTED_ONLY	9	/* set if keyring only accepts links to trusted keys */
 
 	/* the key type and key description string
 	 * - the desc is used to match a key against search criteria
@@ -218,6 +220,7 @@ extern struct key *key_alloc(struct key_type *type,
 #define KEY_ALLOC_IN_QUOTA	0x0000	/* add to quota, reject if would overrun */
 #define KEY_ALLOC_QUOTA_OVERRUN	0x0001	/* add to quota, permit even if overrun */
 #define KEY_ALLOC_NOT_IN_QUOTA	0x0002	/* not in quota */
+#define KEY_ALLOC_TRUSTED	0x0004	/* Key should be flagged as trusted */
 
 extern void key_revoke(struct key *key);
 extern void key_invalidate(struct key *key);
diff --git a/kernel/system_keyring.c b/kernel/system_keyring.c
index 51c35141a13a..5296721eca5b 100644
--- a/kernel/system_keyring.c
+++ b/kernel/system_keyring.c
@@ -40,6 +40,7 @@ static __init int system_trusted_keyring_init(void)
 	if (IS_ERR(system_trusted_keyring))
 		panic("Can't allocate system trusted keyring\n");
 
+	set_bit(KEY_FLAG_TRUSTED_ONLY, &system_trusted_keyring->flags);
 	return 0;
 }
 
@@ -82,7 +83,8 @@ static __init int load_system_certificate_list(void)
 					   plen,
 					   (KEY_POS_ALL & ~KEY_POS_SETATTR) |
 					   KEY_USR_VIEW,
-					   KEY_ALLOC_NOT_IN_QUOTA);
+					   KEY_ALLOC_NOT_IN_QUOTA |
+					   KEY_ALLOC_TRUSTED);
 		if (IS_ERR(key)) {
 			pr_err("Problem loading in-kernel X.509 certificate (%ld)\n",
 			       PTR_ERR(key));
diff --git a/security/keys/key.c b/security/keys/key.c
index a819b5c7d4ec..d331ea9ef380 100644
--- a/security/keys/key.c
+++ b/security/keys/key.c
@@ -300,6 +300,8 @@ struct key *key_alloc(struct key_type *type, const char *desc,
 
 	if (!(flags & KEY_ALLOC_NOT_IN_QUOTA))
 		key->flags |= 1 << KEY_FLAG_IN_QUOTA;
+	if (flags & KEY_ALLOC_TRUSTED)
+		key->flags |= 1 << KEY_FLAG_TRUSTED;
 
 	memset(&key->type_data, 0, sizeof(key->type_data));
 
@@ -813,6 +815,7 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref,
 	prep.data = payload;
 	prep.datalen = plen;
 	prep.quotalen = index_key.type->def_datalen;
+	prep.trusted = flags & KEY_ALLOC_TRUSTED;
 	if (index_key.type->preparse) {
 		ret = index_key.type->preparse(&prep);
 		if (ret < 0) {
@@ -827,6 +830,11 @@ key_ref_t key_create_or_update(key_ref_t keyring_ref,
 	}
 	index_key.desc_len = strlen(index_key.description);
 
+	key_ref = ERR_PTR(-EPERM);
+	if (!prep.trusted && test_bit(KEY_FLAG_TRUSTED_ONLY, &keyring->flags))
+		goto error_free_prep;
+	flags |= prep.trusted ? KEY_ALLOC_TRUSTED : 0;
+
 	ret = __key_link_begin(keyring, &index_key, &edit);
 	if (ret < 0) {
 		key_ref = ERR_PTR(ret);
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index f7cdea22214f..9b6f6e09b50c 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -1183,6 +1183,10 @@ int key_link(struct key *keyring, struct key *key)
 	key_check(keyring);
 	key_check(key);
 
+	if (test_bit(KEY_FLAG_TRUSTED_ONLY, &keyring->flags) &&
+	    !test_bit(KEY_FLAG_TRUSTED, &key->flags))
+		return -EPERM;
+
 	ret = __key_link_begin(keyring, &key->index_key, &edit);
 	if (ret == 0) {
 		kdebug("begun {%d,%d}", keyring->serial, atomic_read(&keyring->usage));
-- 
cgit 


From cd0421dcd0230d3e402ae9c6d012610132c3f078 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Wed, 4 Sep 2013 19:28:03 +0100
Subject: KEYS: Set the asymmetric-key type default search method

The keyring expansion patches introduces a new search method by which
key_search() attempts to walk directly to the key that has exactly the same
description as the requested one.

However, this causes inexact matching of asymmetric keys to fail.  The
solution to this is to select iterative rather than direct search as the
default search type for asymmetric keys.

As an example, the kernel might have a key like this:

	Magrathea: Glacier signing key: 6a2a0f82bad7e396665f465e4e3e1f9bd24b1226

and:

	keyctl search <keyring-ID> asymmetric id:d24b1226

should find the key, despite that not being its exact description.

Signed-off-by: David Howells <dhowells@redhat.com>
---
 crypto/asymmetric_keys/asymmetric_type.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/crypto/asymmetric_keys/asymmetric_type.c b/crypto/asymmetric_keys/asymmetric_type.c
index cf807654d221..b77eb5304788 100644
--- a/crypto/asymmetric_keys/asymmetric_type.c
+++ b/crypto/asymmetric_keys/asymmetric_type.c
@@ -209,6 +209,7 @@ struct key_type key_type_asymmetric = {
 	.match		= asymmetric_key_match,
 	.destroy	= asymmetric_key_destroy,
 	.describe	= asymmetric_key_describe,
+	.def_lookup_type = KEYRING_SEARCH_LOOKUP_ITERATE,
 };
 EXPORT_SYMBOL_GPL(key_type_asymmetric);
 
-- 
cgit 


From af34cb0c3d16b46d88b661692b885d1d998a8ecb Mon Sep 17 00:00:00 2001
From: Mimi Zohar <zohar@linux.vnet.ibm.com>
Date: Tue, 20 Aug 2013 14:36:26 -0400
Subject: KEYS: Make the system 'trusted' keyring viewable by userspace

Give the root user the ability to read the system keyring and put read
permission on the trusted keys added during boot.  The latter is actually more
theoretical than real for the moment as asymmetric keys do not currently
provide a read operation.

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: David Howells <dhowells@redhat.com>
---
 kernel/system_keyring.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/system_keyring.c b/kernel/system_keyring.c
index 5296721eca5b..564dd93430a2 100644
--- a/kernel/system_keyring.c
+++ b/kernel/system_keyring.c
@@ -35,7 +35,7 @@ static __init int system_trusted_keyring_init(void)
 		keyring_alloc(".system_keyring",
 			      KUIDT_INIT(0), KGIDT_INIT(0), current_cred(),
 			      ((KEY_POS_ALL & ~KEY_POS_SETATTR) |
-			       KEY_USR_VIEW | KEY_USR_READ),
+			      KEY_USR_VIEW | KEY_USR_READ | KEY_USR_SEARCH),
 			      KEY_ALLOC_NOT_IN_QUOTA, NULL);
 	if (IS_ERR(system_trusted_keyring))
 		panic("Can't allocate system trusted keyring\n");
@@ -81,8 +81,8 @@ static __init int load_system_certificate_list(void)
 					   NULL,
 					   p,
 					   plen,
-					   (KEY_POS_ALL & ~KEY_POS_SETATTR) |
-					   KEY_USR_VIEW,
+					   ((KEY_POS_ALL & ~KEY_POS_SETATTR) |
+					   KEY_USR_VIEW | KEY_USR_READ),
 					   KEY_ALLOC_NOT_IN_QUOTA |
 					   KEY_ALLOC_TRUSTED);
 		if (IS_ERR(key)) {
-- 
cgit 


From 09fbc47373826d67531380662b516de2da120545 Mon Sep 17 00:00:00 2001
From: Mimi Zohar <zohar@linux.vnet.ibm.com>
Date: Tue, 20 Aug 2013 14:36:27 -0400
Subject: KEYS: verify a certificate is signed by a 'trusted' key

Only public keys, with certificates signed by an existing
'trusted' key on the system trusted keyring, should be added
to a trusted keyring.  This patch adds support for verifying
a certificate's signature.

This is derived from David Howells pkcs7_request_asymmetric_key() patch.

Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: David Howells <dhowells@redhat.com>
---
 crypto/asymmetric_keys/x509_public_key.c | 81 +++++++++++++++++++++++++++++++-
 1 file changed, 80 insertions(+), 1 deletion(-)

diff --git a/crypto/asymmetric_keys/x509_public_key.c b/crypto/asymmetric_keys/x509_public_key.c
index c1540e8f454a..87612642f1b1 100644
--- a/crypto/asymmetric_keys/x509_public_key.c
+++ b/crypto/asymmetric_keys/x509_public_key.c
@@ -18,11 +18,59 @@
 #include <linux/asn1_decoder.h>
 #include <keys/asymmetric-subtype.h>
 #include <keys/asymmetric-parser.h>
+#include <keys/system_keyring.h>
 #include <crypto/hash.h>
 #include "asymmetric_keys.h"
 #include "public_key.h"
 #include "x509_parser.h"
 
+/*
+ * Find a key in the given keyring by issuer and authority.
+ */
+static struct key *x509_request_asymmetric_key(
+	struct key *keyring,
+	const char *signer, size_t signer_len,
+	const char *authority, size_t auth_len)
+{
+	key_ref_t key;
+	char *id;
+
+	/* Construct an identifier. */
+	id = kmalloc(signer_len + 2 + auth_len + 1, GFP_KERNEL);
+	if (!id)
+		return ERR_PTR(-ENOMEM);
+
+	memcpy(id, signer, signer_len);
+	id[signer_len + 0] = ':';
+	id[signer_len + 1] = ' ';
+	memcpy(id + signer_len + 2, authority, auth_len);
+	id[signer_len + 2 + auth_len] = 0;
+
+	pr_debug("Look up: \"%s\"\n", id);
+
+	key = keyring_search(make_key_ref(keyring, 1),
+			     &key_type_asymmetric, id);
+	if (IS_ERR(key))
+		pr_debug("Request for module key '%s' err %ld\n",
+			 id, PTR_ERR(key));
+	kfree(id);
+
+	if (IS_ERR(key)) {
+		switch (PTR_ERR(key)) {
+			/* Hide some search errors */
+		case -EACCES:
+		case -ENOTDIR:
+		case -EAGAIN:
+			return ERR_PTR(-ENOKEY);
+		default:
+			return ERR_CAST(key);
+		}
+	}
+
+	pr_devel("<==%s() = 0 [%x]\n", __func__, key_serial(key_ref_to_ptr(key)));
+	return key_ref_to_ptr(key);
+}
+
 /*
  * Set up the signature parameters in an X.509 certificate.  This involves
  * digesting the signed data and extracting the signature.
@@ -102,6 +150,33 @@ int x509_check_signature(const struct public_key *pub,
 }
 EXPORT_SYMBOL_GPL(x509_check_signature);
 
+/*
+ * Check the new certificate against the ones in the trust keyring.  If one of
+ * those is the signing key and validates the new certificate, then mark the
+ * new certificate as being trusted.
+ *
+ * Return 0 if the new certificate was successfully validated, 1 if we couldn't
+ * find a matching parent certificate in the trusted list and an error if there
+ * is a matching certificate but the signature check fails.
+ */
+static int x509_validate_trust(struct x509_certificate *cert,
+			       struct key *trust_keyring)
+{
+	const struct public_key *pk;
+	struct key *key;
+	int ret = 1;
+
+	key = x509_request_asymmetric_key(trust_keyring,
+					  cert->issuer, strlen(cert->issuer),
+					  cert->authority,
+					  strlen(cert->authority));
+	if (!IS_ERR(key))  {
+		pk = key->payload.data;
+		ret = x509_check_signature(pk, cert);
+	}
+	return ret;
+}
+
 /*
  * Attempt to parse a data blob for a key as an X509 certificate.
  */
@@ -155,9 +230,13 @@ static int x509_key_preparse(struct key_preparsed_payload *prep)
 	/* Check the signature on the key if it appears to be self-signed */
 	if (!cert->authority ||
 	    strcmp(cert->fingerprint, cert->authority) == 0) {
-		ret = x509_check_signature(cert->pub, cert);
+		ret = x509_check_signature(cert->pub, cert); /* self-signed */
 		if (ret < 0)
 			goto error_free_cert;
+	} else {
+		ret = x509_validate_trust(cert, system_trusted_keyring);
+		if (!ret)
+			prep->trusted = 1;
 	}
 
 	/* Propose a description */
-- 
cgit 


From c124bde28bce41f9e46e32d03d134a81e116d38c Mon Sep 17 00:00:00 2001
From: Mimi Zohar <zohar@linux.vnet.ibm.com>
Date: Wed, 4 Sep 2013 13:26:22 +0100
Subject: KEYS: initialize root uid and session keyrings early

In order to create the integrity keyrings (eg. _evm, _ima), root's
uid and session keyrings need to be initialized early.

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: David Howells <dhowells@redhat.com>
---
 security/keys/process_keys.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/security/keys/process_keys.c b/security/keys/process_keys.c
index 68548ea6fe01..0cf8a130a267 100644
--- a/security/keys/process_keys.c
+++ b/security/keys/process_keys.c
@@ -857,3 +857,13 @@ void key_change_session_keyring(struct callback_head *twork)
 
 	commit_creds(new);
 }
+
+/*
+ * Make sure that root's user and user-session keyrings exist.
+ */
+static int __init init_root_keyring(void)
+{
+	return install_user_keyrings();
+}
+
+late_initcall(init_root_keyring);
-- 
cgit 


From 4ff158229770d245ce0a961a594adfc0e86d1cc5 Mon Sep 17 00:00:00 2001
From: Konstantin Khlebnikov <khlebnikov@openvz.org>
Date: Tue, 17 Sep 2013 15:14:52 +0400
Subject: MPILIB: add module description and license

This patch fixes lack of license, otherwise mpi.ko taints kernel.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Signed-off-by: David Howells <dhowells@redhat.com>
---
 lib/mpi/mpiutil.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/mpi/mpiutil.c b/lib/mpi/mpiutil.c
index 657979f71bef..bf076d281d40 100644
--- a/lib/mpi/mpiutil.c
+++ b/lib/mpi/mpiutil.c
@@ -121,3 +121,6 @@ void mpi_free(MPI a)
 	kfree(a);
 }
 EXPORT_SYMBOL_GPL(mpi_free);
+
+MODULE_DESCRIPTION("Multiprecision maths library");
+MODULE_LICENSE("GPL");
-- 
cgit 


From e19aaa7d43bed3bf6740a2931878beef5da9d7d9 Mon Sep 17 00:00:00 2001
From: Konstantin Khlebnikov <khlebnikov@openvz.org>
Date: Tue, 17 Sep 2013 15:14:55 +0400
Subject: X.509: add module description and license

This patch fixes lack of license, otherwise x509_key_parser.ko taints kernel.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Signed-off-by: David Howells <dhowells@redhat.com>
---
 crypto/asymmetric_keys/x509_public_key.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/crypto/asymmetric_keys/x509_public_key.c b/crypto/asymmetric_keys/x509_public_key.c
index 87612642f1b1..6abc27f2e8a5 100644
--- a/crypto/asymmetric_keys/x509_public_key.c
+++ b/crypto/asymmetric_keys/x509_public_key.c
@@ -292,3 +292,6 @@ static void __exit x509_key_exit(void)
 
 module_init(x509_key_init);
 module_exit(x509_key_exit);
+
+MODULE_DESCRIPTION("X.509 certificate parser");
+MODULE_LICENSE("GPL");
-- 
cgit 


From eb8948a03704f3dbbfc7e83090e20e93c6c476d2 Mon Sep 17 00:00:00 2001
From: Antonio Alecrim Jr <antonio.alecrim@gmail.com>
Date: Mon, 16 Sep 2013 11:04:54 -0300
Subject: X.509: remove possible code fragility: enumeration values not handled

Signed-off-by: Antonio Alecrim Jr <antonio.alecrim@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
---
 scripts/asn1_compiler.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/scripts/asn1_compiler.c b/scripts/asn1_compiler.c
index db0e5cd34c70..91c4117637ae 100644
--- a/scripts/asn1_compiler.c
+++ b/scripts/asn1_compiler.c
@@ -1353,6 +1353,8 @@ static void render_out_of_line_list(FILE *out)
 			render_opcode(out, "ASN1_OP_END_SET_OF%s,\n", act);
 			render_opcode(out, "_jump_target(%u),\n", entry);
 			break;
+		default:
+			break;
 		}
 		if (e->action)
 			render_opcode(out, "_action(ACT_%s),\n",
-- 
cgit 


From 4b0d3f0fde41a3c4454adb4d474618c23cfd4131 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Mon, 23 Sep 2013 12:40:41 -0700
Subject: rcu: Fix occurrence of "the the" in checklist.txt

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
[ paulmck: Add "then" as suggested by Josh Triplett. ]
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
---
 Documentation/RCU/checklist.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/RCU/checklist.txt b/Documentation/RCU/checklist.txt
index 7703ec73a9bb..91266193b8f4 100644
--- a/Documentation/RCU/checklist.txt
+++ b/Documentation/RCU/checklist.txt
@@ -202,8 +202,8 @@ over a rather long period of time, but improvements are always welcome!
 	updater uses call_rcu_sched() or synchronize_sched(), then
 	the corresponding readers must disable preemption, possibly
 	by calling rcu_read_lock_sched() and rcu_read_unlock_sched().
-	If the updater uses synchronize_srcu() or call_srcu(),
-	the the corresponding readers must use srcu_read_lock() and
+	If the updater uses synchronize_srcu() or call_srcu(), then
+	the corresponding readers must use srcu_read_lock() and
 	srcu_read_unlock(), and with the same srcu_struct.  The rules for
 	the expedited primitives are the same as for their non-expedited
 	counterparts.  Mixing things up will result in confusion and
-- 
cgit 


From 0fba96f97bba73469dd952319fddc4a3cc99dd97 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 25 Sep 2013 13:26:04 +0300
Subject: Bluetooth: Add clarifying comment to bt_sock_wait_state()

The bt_sock_wait_state requires the sk lock to be held (through
lock_sock) so document it clearly in the code.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/af_bluetooth.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index c600631cd19e..e6e1278dca89 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -490,6 +490,7 @@ int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 }
 EXPORT_SYMBOL(bt_sock_ioctl);
 
+/* This function expects the sk lock to be held when called */
 int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo)
 {
 	DECLARE_WAITQUEUE(wait, current);
-- 
cgit 


From 970871bc9cb2f5f783cb7cca31ff223c44662327 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 25 Sep 2013 13:26:05 +0300
Subject: Bluetooth: Clean up socket locking in l2cap_sock_recvmsg

This patch cleans up the locking login in l2cap_sock_recvmsg by pairing
up each lock_sock call with a release_sock call. The function already
has a "done" label that handles releasing the socket and returning from
the function so the fix is rather simple.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/l2cap_sock.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index ad95b426b09c..c85537ca1a23 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -805,8 +805,8 @@ static int l2cap_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 		pi->chan->state = BT_CONFIG;
 
 		__l2cap_connect_rsp_defer(pi->chan);
-		release_sock(sk);
-		return 0;
+		err = 0;
+		goto done;
 	}
 
 	release_sock(sk);
-- 
cgit 


From 87b95ba64efcfcf70a9f9933297994aada64cd74 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 25 Sep 2013 13:26:06 +0300
Subject: Bluetooth: Fix busy return for mgmt_set_powered in some cases

We should return a "busy" error always when there is another
mgmt_set_powered operation in progress. Previously when powering on
while the auto off timer was still set the code could have let two or
more pending power on commands to be queued. This patch fixes the issue
by moving the check for duplicate commands to an earlier point in the
set_powered handler.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/mgmt.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 3070e772db6b..85bfa2157e6f 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -807,6 +807,12 @@ static int set_powered(struct sock *sk, struct hci_dev *hdev, void *data,
 
 	hci_dev_lock(hdev);
 
+	if (mgmt_pending_find(MGMT_OP_SET_POWERED, hdev)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_SET_POWERED,
+				 MGMT_STATUS_BUSY);
+		goto failed;
+	}
+
 	if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) {
 		cancel_delayed_work(&hdev->power_off);
 
@@ -823,12 +829,6 @@ static int set_powered(struct sock *sk, struct hci_dev *hdev, void *data,
 		goto failed;
 	}
 
-	if (mgmt_pending_find(MGMT_OP_SET_POWERED, hdev)) {
-		err = cmd_status(sk, hdev->id, MGMT_OP_SET_POWERED,
-				 MGMT_STATUS_BUSY);
-		goto failed;
-	}
-
 	cmd = mgmt_pending_add(sk, MGMT_OP_SET_POWERED, hdev, data, len);
 	if (!cmd) {
 		err = -ENOMEM;
-- 
cgit 


From bd99abdd5b876406c34b872956b3237e18613566 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 25 Sep 2013 13:26:07 +0300
Subject: Bluetooth: Move mgmt response convenience functions to a better
 location

The settings_rsp and cmd_status_rsp functions can be useful for all mgmt
command handlers when asynchronous request callbacks are used. They will
e.g. be used by subsequent patches to change set_le to use an async
request as well as a new set_advertising command. Therefore, move them
higher up in the mgmt.c file to avoid unnecessary forward declarations
or mixing this trivial change with other patches.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/mgmt.c | 60 ++++++++++++++++++++++++++--------------------------
 1 file changed, 30 insertions(+), 30 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 85bfa2157e6f..61d4b190eebf 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -886,6 +886,36 @@ static int new_settings(struct hci_dev *hdev, struct sock *skip)
 	return mgmt_event(MGMT_EV_NEW_SETTINGS, hdev, &ev, sizeof(ev), skip);
 }
 
+struct cmd_lookup {
+	struct sock *sk;
+	struct hci_dev *hdev;
+	u8 mgmt_status;
+};
+
+static void settings_rsp(struct pending_cmd *cmd, void *data)
+{
+	struct cmd_lookup *match = data;
+
+	send_settings_rsp(cmd->sk, cmd->opcode, match->hdev);
+
+	list_del(&cmd->list);
+
+	if (match->sk == NULL) {
+		match->sk = cmd->sk;
+		sock_hold(match->sk);
+	}
+
+	mgmt_pending_free(cmd);
+}
+
+static void cmd_status_rsp(struct pending_cmd *cmd, void *data)
+{
+	u8 *status = data;
+
+	cmd_status(cmd->sk, cmd->index, cmd->opcode, *status);
+	mgmt_pending_remove(cmd);
+}
+
 static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 			    u16 len)
 {
@@ -3374,14 +3404,6 @@ done:
 	return err;
 }
 
-static void cmd_status_rsp(struct pending_cmd *cmd, void *data)
-{
-	u8 *status = data;
-
-	cmd_status(cmd->sk, cmd->index, cmd->opcode, *status);
-	mgmt_pending_remove(cmd);
-}
-
 int mgmt_index_added(struct hci_dev *hdev)
 {
 	if (!mgmt_valid_hdev(hdev))
@@ -3402,28 +3424,6 @@ int mgmt_index_removed(struct hci_dev *hdev)
 	return mgmt_event(MGMT_EV_INDEX_REMOVED, hdev, NULL, 0, NULL);
 }
 
-struct cmd_lookup {
-	struct sock *sk;
-	struct hci_dev *hdev;
-	u8 mgmt_status;
-};
-
-static void settings_rsp(struct pending_cmd *cmd, void *data)
-{
-	struct cmd_lookup *match = data;
-
-	send_settings_rsp(cmd->sk, cmd->opcode, match->hdev);
-
-	list_del(&cmd->list);
-
-	if (match->sk == NULL) {
-		match->sk = cmd->sk;
-		sock_hold(match->sk);
-	}
-
-	mgmt_pending_free(cmd);
-}
-
 static void set_bredr_scan(struct hci_request *req)
 {
 	struct hci_dev *hdev = req->hdev;
-- 
cgit 


From 416a4ae56b7a37407ca1155805c05b638f845778 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 25 Sep 2013 13:26:08 +0300
Subject: Bluetooth: Use async request for LE enable/disable

This patch updates the code to use an asynchronous request for handling
the enabling and disabling of LE support. This refactoring is necessary
as a preparation for adding advertising support, since when LE is
disabled we should also disable advertising, and the cleanest way to do
this is to perform the two respective HCI commands in the same
asynchronous request.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/hci_core.h |  1 -
 net/bluetooth/hci_event.c        | 11 +++----
 net/bluetooth/mgmt.c             | 67 ++++++++++++++++------------------------
 3 files changed, 32 insertions(+), 47 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 3ede820d328f..26cc9f7858cd 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1168,7 +1168,6 @@ int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
 int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
 int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
 					    u8 *randomizer, u8 status);
-int mgmt_le_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
 int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 		      u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name,
 		      u8 ssp, u8 *eir, u16 eir_len);
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 94aab73f89d4..48db81f8a337 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -994,20 +994,19 @@ static void hci_cc_write_le_host_supported(struct hci_dev *hdev,
 		return;
 
 	if (!status) {
-		if (sent->le)
+		if (sent->le) {
 			hdev->features[1][0] |= LMP_HOST_LE;
-		else
+			set_bit(HCI_LE_ENABLED, &hdev->dev_flags);
+		} else {
 			hdev->features[1][0] &= ~LMP_HOST_LE;
+			clear_bit(HCI_LE_ENABLED, &hdev->dev_flags);
+		}
 
 		if (sent->simul)
 			hdev->features[1][0] |= LMP_HOST_LE_BREDR;
 		else
 			hdev->features[1][0] &= ~LMP_HOST_LE_BREDR;
 	}
-
-	if (test_bit(HCI_MGMT, &hdev->dev_flags) &&
-	    !test_bit(HCI_INIT, &hdev->flags))
-		mgmt_le_enable_complete(hdev, sent->le, status);
 }
 
 static void hci_cc_write_remote_amp_assoc(struct hci_dev *hdev,
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 61d4b190eebf..4c3984ee1114 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1354,11 +1354,32 @@ static int set_hs(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 	return send_settings_rsp(sk, MGMT_OP_SET_HS, hdev);
 }
 
+static void le_enable_complete(struct hci_dev *hdev, u8 status)
+{
+	struct cmd_lookup match = { NULL, hdev };
+
+	if (status) {
+		u8 mgmt_err = mgmt_status(status);
+
+		mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, cmd_status_rsp,
+				     &mgmt_err);
+		return;
+	}
+
+	mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, settings_rsp, &match);
+
+	new_settings(hdev, match.sk);
+
+	if (match.sk)
+		sock_put(match.sk);
+}
+
 static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 {
 	struct mgmt_mode *cp = data;
 	struct hci_cp_write_le_host_supported hci_cp;
 	struct pending_cmd *cmd;
+	struct hci_request req;
 	int err;
 	u8 val, enabled;
 
@@ -1419,8 +1440,12 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 		hci_cp.simul = lmp_le_br_capable(hdev);
 	}
 
-	err = hci_send_cmd(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(hci_cp),
-			   &hci_cp);
+	hci_req_init(&req, hdev);
+
+	hci_req_add(&req, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(hci_cp),
+		    &hci_cp);
+
+	err = hci_req_run(&req, le_enable_complete);
 	if (err < 0)
 		mgmt_pending_remove(cmd);
 
@@ -4141,44 +4166,6 @@ int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
 	return err;
 }
 
-int mgmt_le_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
-{
-	struct cmd_lookup match = { NULL, hdev };
-	bool changed = false;
-	int err = 0;
-
-	if (status) {
-		u8 mgmt_err = mgmt_status(status);
-
-		if (enable && test_and_clear_bit(HCI_LE_ENABLED,
-						 &hdev->dev_flags))
-			err = new_settings(hdev, NULL);
-
-		mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, cmd_status_rsp,
-				     &mgmt_err);
-
-		return err;
-	}
-
-	if (enable) {
-		if (!test_and_set_bit(HCI_LE_ENABLED, &hdev->dev_flags))
-			changed = true;
-	} else {
-		if (test_and_clear_bit(HCI_LE_ENABLED, &hdev->dev_flags))
-			changed = true;
-	}
-
-	mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, settings_rsp, &match);
-
-	if (changed)
-		err = new_settings(hdev, match.sk);
-
-	if (match.sk)
-		sock_put(match.sk);
-
-	return err;
-}
-
 int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 		      u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name, u8
 		      ssp, u8 *eir, u16 eir_len)
-- 
cgit 


From eeca6f891305a80378da978f803821c2a0b648b6 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 25 Sep 2013 13:26:09 +0300
Subject: Bluetooth: Add new mgmt setting for LE advertising

This patch adds a new mgmt setting for LE advertising and hooks up the
necessary places in the mgmt code to operate on the HCI_LE_PERIPHERAL
flag (which corresponds to this setting). This patch does not yet add
any new command for enabling the setting - that is left for a subsequent
patch.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/mgmt.h |  1 +
 net/bluetooth/hci_event.c    |  1 +
 net/bluetooth/mgmt.c         | 21 ++++++++++++++++++++-
 3 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index 9944c3e68c5d..6cc72b69e014 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -93,6 +93,7 @@ struct mgmt_rp_read_index_list {
 #define MGMT_SETTING_BREDR		0x00000080
 #define MGMT_SETTING_HS			0x00000100
 #define MGMT_SETTING_LE			0x00000200
+#define MGMT_SETTING_ADVERTISING	0x00000400
 
 #define MGMT_OP_READ_INFO		0x0004
 #define MGMT_READ_INFO_SIZE		0
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 48db81f8a337..917c7c833f69 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1000,6 +1000,7 @@ static void hci_cc_write_le_host_supported(struct hci_dev *hdev,
 		} else {
 			hdev->features[1][0] &= ~LMP_HOST_LE;
 			clear_bit(HCI_LE_ENABLED, &hdev->dev_flags);
+			clear_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags);
 		}
 
 		if (sent->simul)
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 4c3984ee1114..9a2faa310b7c 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -384,8 +384,10 @@ static u32 get_supported_settings(struct hci_dev *hdev)
 	if (enable_hs)
 		settings |= MGMT_SETTING_HS;
 
-	if (lmp_le_capable(hdev))
+	if (lmp_le_capable(hdev)) {
 		settings |= MGMT_SETTING_LE;
+		settings |= MGMT_SETTING_ADVERTISING;
+	}
 
 	return settings;
 }
@@ -424,6 +426,9 @@ static u32 get_current_settings(struct hci_dev *hdev)
 	if (test_bit(HCI_HS_ENABLED, &hdev->dev_flags))
 		settings |= MGMT_SETTING_HS;
 
+	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags))
+		settings |= MGMT_SETTING_ADVERTISING;
+
 	return settings;
 }
 
@@ -1411,6 +1416,11 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 			changed = true;
 		}
 
+		if (!val && test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags)) {
+			clear_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags);
+			changed = true;
+		}
+
 		err = send_settings_rsp(sk, MGMT_OP_SET_LE, hdev);
 		if (err < 0)
 			goto unlock;
@@ -1442,6 +1452,9 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 
 	hci_req_init(&req, hdev);
 
+	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags) && !val)
+		hci_req_add(&req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(val), &val);
+
 	hci_req_add(&req, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(hci_cp),
 		    &hci_cp);
 
@@ -3517,6 +3530,12 @@ static int powered_update_hci(struct hci_dev *hdev)
 				    sizeof(cp), &cp);
 	}
 
+	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags)) {
+		u8 adv = 0x01;
+
+		hci_req_add(&req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(adv), &adv);
+	}
+
 	link_sec = test_bit(HCI_LINK_SECURITY, &hdev->dev_flags);
 	if (link_sec != test_bit(HCI_AUTH, &hdev->flags))
 		hci_req_add(&req, HCI_OP_WRITE_AUTH_ENABLE,
-- 
cgit 


From 4375f1037d52602413142e290608d0d84671ad36 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 25 Sep 2013 13:26:10 +0300
Subject: Bluetooth: Add new mgmt_set_advertising command

This patch adds a new mgmt command for enabling and disabling
LE advertising. The command depends on the LE setting being enabled
first and will return a "rejected" response otherwise. The patch also
adds safeguards so that there will ever only be one set_le or
set_advertising command pending per adapter.

The response handling and new_settings event sending is done in an
asynchronous request callback, meaning raw HCI access from user space to
enable advertising (e.g. hciconfig leadv) will not trigger the
new_settings event. This is intentional since trying to support mixed
raw HCI and mgmt access would mean adding extra state tracking or new
helper functions, essentially negating the benefit of using the
asynchronous request framework. The HCI_LE_ENABLED and HCI_LE_PERIPHERAL
flags however are updated correctly even with raw HCI access so this
will not completely break subsequent access over mgmt.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/mgmt.h |  2 +
 net/bluetooth/mgmt.c         | 97 +++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 98 insertions(+), 1 deletion(-)

diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index 6cc72b69e014..421d7633a91f 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -352,6 +352,8 @@ struct mgmt_cp_set_device_id {
 } __packed;
 #define MGMT_SET_DEVICE_ID_SIZE		8
 
+#define MGMT_OP_SET_ADVERTISING		0x0029
+
 #define MGMT_EV_CMD_COMPLETE		0x0001
 struct mgmt_ev_cmd_complete {
 	__le16	opcode;
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 9a2faa310b7c..1b5b10fab545 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -76,6 +76,7 @@ static const u16 mgmt_commands[] = {
 	MGMT_OP_BLOCK_DEVICE,
 	MGMT_OP_UNBLOCK_DEVICE,
 	MGMT_OP_SET_DEVICE_ID,
+	MGMT_OP_SET_ADVERTISING,
 };
 
 static const u16 mgmt_events[] = {
@@ -1431,7 +1432,8 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 		goto unlock;
 	}
 
-	if (mgmt_pending_find(MGMT_OP_SET_LE, hdev)) {
+	if (mgmt_pending_find(MGMT_OP_SET_LE, hdev) ||
+	    mgmt_pending_find(MGMT_OP_SET_ADVERTISING, hdev)) {
 		err = cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
 				 MGMT_STATUS_BUSY);
 		goto unlock;
@@ -3136,6 +3138,98 @@ static int set_device_id(struct sock *sk, struct hci_dev *hdev, void *data,
 	return err;
 }
 
+static void set_advertising_complete(struct hci_dev *hdev, u8 status)
+{
+	struct cmd_lookup match = { NULL, hdev };
+
+	if (status) {
+		u8 mgmt_err = mgmt_status(status);
+
+		mgmt_pending_foreach(MGMT_OP_SET_ADVERTISING, hdev,
+				     cmd_status_rsp, &mgmt_err);
+		return;
+	}
+
+	mgmt_pending_foreach(MGMT_OP_SET_ADVERTISING, hdev, settings_rsp,
+			     &match);
+
+	new_settings(hdev, match.sk);
+
+	if (match.sk)
+		sock_put(match.sk);
+}
+
+static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
+{
+	struct mgmt_mode *cp = data;
+	struct pending_cmd *cmd;
+	struct hci_request req;
+	u8 val, enabled;
+	int err;
+
+	BT_DBG("request for %s", hdev->name);
+
+	if (!lmp_le_capable(hdev))
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
+				  MGMT_STATUS_NOT_SUPPORTED);
+
+	if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags))
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
+				  MGMT_STATUS_REJECTED);
+
+	if (cp->val != 0x00 && cp->val != 0x01)
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
+				  MGMT_STATUS_INVALID_PARAMS);
+
+	hci_dev_lock(hdev);
+
+	val = !!cp->val;
+	enabled = test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags);
+
+	if (!hdev_is_powered(hdev) || val == enabled) {
+		bool changed = false;
+
+		if (val != test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags)) {
+			change_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags);
+			changed = true;
+		}
+
+		err = send_settings_rsp(sk, MGMT_OP_SET_ADVERTISING, hdev);
+		if (err < 0)
+			goto unlock;
+
+		if (changed)
+			err = new_settings(hdev, sk);
+
+		goto unlock;
+	}
+
+	if (mgmt_pending_find(MGMT_OP_SET_ADVERTISING, hdev) ||
+	    mgmt_pending_find(MGMT_OP_SET_LE, hdev)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
+				 MGMT_STATUS_BUSY);
+		goto unlock;
+	}
+
+	cmd = mgmt_pending_add(sk, MGMT_OP_SET_ADVERTISING, hdev, data, len);
+	if (!cmd) {
+		err = -ENOMEM;
+		goto unlock;
+	}
+
+	hci_req_init(&req, hdev);
+
+	hci_req_add(&req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(val), &val);
+
+	err = hci_req_run(&req, set_advertising_complete);
+	if (err < 0)
+		mgmt_pending_remove(cmd);
+
+unlock:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
 static void fast_connectable_complete(struct hci_dev *hdev, u8 status)
 {
 	struct pending_cmd *cmd;
@@ -3347,6 +3441,7 @@ static const struct mgmt_handler {
 	{ block_device,           false, MGMT_BLOCK_DEVICE_SIZE },
 	{ unblock_device,         false, MGMT_UNBLOCK_DEVICE_SIZE },
 	{ set_device_id,          false, MGMT_SET_DEVICE_ID_SIZE },
+	{ set_advertising,        false, MGMT_SETTING_SIZE },
 };
 
 
-- 
cgit 


From 16c21ae5ca636cfd38e581ebcf709c49d78ea56d Mon Sep 17 00:00:00 2001
From: Li Fei <fei.li@intel.com>
Date: Wed, 21 Aug 2013 16:13:57 +0800
Subject: reboot: Allow specifying warm/cold reset for CF9 boot type

In current implementation for reboot type CF9 and CF9_COND,
warm and cold reset are not differentiated, and both are
performed by writing 0x06 to port 0xCF9.

This commit will differentiate warm and cold reset:

For warm reset, write 0x06 to port 0xCF9;
For cold reset, write 0x0E to port 0xCF9.

[ hpa: This meaning of "cold" and "warm" reset is different from other
  reboot types use, where "warm" means "bypass BIOS POST".  It is also
  not entirely clear that it actually solves any actual problem.  However,
  it would seem fairly harmless to offer this additional option.

  Also note that we do not mask bit 3 in the "warm reset" case.  This
  preserves the behavior on existing systems, including ones quirked
  to use CF9.  It seems reasonable that on any system where the
  warm/cold distinction actually matters that bit 3 would be read as
  zero. ]

From: Liu Chuansheng <chuansheng.liu@intel.com>
Signed-off-by: Li Fei <fei.li@intel.com>
Link: http://lkml.kernel.org/r/1377072837.24556.2.camel@fli24-HP-Compaq-8100-Elite-CMT-PC
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/reboot.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 563ed91e6faa..ca42f6350b23 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -511,10 +511,13 @@ static void native_machine_emergency_restart(void)
 
 		case BOOT_CF9_COND:
 			if (port_cf9_safe) {
-				u8 cf9 = inb(0xcf9) & ~6;
+				u8 reboot_code = reboot_mode == REBOOT_WARM ?
+					0x06 : 0x0E;
+				u8 cf9 = inb(0xcf9) & ~reboot_code;
 				outb(cf9|2, 0xcf9); /* Request hard reset */
 				udelay(50);
-				outb(cf9|6, 0xcf9); /* Actually do the reset */
+				/* Actually do the reset */
+				outb(cf9|reboot_code, 0xcf9);
 				udelay(50);
 			}
 			reboot_type = BOOT_KBD;
-- 
cgit 


From cc8ef52707341e67a12067d6ead991d56ea017ca Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Wed, 25 Sep 2013 20:39:45 +0800
Subject: ACPI / AC: convert ACPI ac driver to platform bus

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/ac.c            | 163 +++++++++++++++++++++----------------------
 drivers/acpi/acpi_platform.c |   1 +
 2 files changed, 81 insertions(+), 83 deletions(-)

diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index f37beaa32750..324b5a096eff 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -34,6 +34,7 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #endif
+#include <linux/platform_device.h>
 #include <linux/power_supply.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
@@ -61,39 +62,12 @@ extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir);
 static int acpi_ac_open_fs(struct inode *inode, struct file *file);
 #endif
 
-static int acpi_ac_add(struct acpi_device *device);
-static int acpi_ac_remove(struct acpi_device *device);
-static void acpi_ac_notify(struct acpi_device *device, u32 event);
-
-static const struct acpi_device_id ac_device_ids[] = {
-	{"ACPI0003", 0},
-	{"", 0},
-};
-MODULE_DEVICE_TABLE(acpi, ac_device_ids);
-
-#ifdef CONFIG_PM_SLEEP
-static int acpi_ac_resume(struct device *dev);
-#endif
-static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume);
-
 static int ac_sleep_before_get_state_ms;
 
-static struct acpi_driver acpi_ac_driver = {
-	.name = "ac",
-	.class = ACPI_AC_CLASS,
-	.ids = ac_device_ids,
-	.flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS,
-	.ops = {
-		.add = acpi_ac_add,
-		.remove = acpi_ac_remove,
-		.notify = acpi_ac_notify,
-		},
-	.drv.pm = &acpi_ac_pm,
-};
-
 struct acpi_ac {
 	struct power_supply charger;
-	struct acpi_device * device;
+	struct acpi_device *adev;
+	struct platform_device *pdev;
 	unsigned long long state;
 };
 
@@ -115,15 +89,13 @@ static const struct file_operations acpi_ac_fops = {
 
 static int acpi_ac_get_state(struct acpi_ac *ac)
 {
-	acpi_status status = AE_OK;
-
+	acpi_status status;
 
-	if (!ac)
-		return -EINVAL;
-
-	status = acpi_evaluate_integer(ac->device->handle, "_PSR", NULL, &ac->state);
+	status = acpi_evaluate_integer(ac->adev->handle, "_PSR", NULL,
+				       &ac->state);
 	if (ACPI_FAILURE(status)) {
-		ACPI_EXCEPTION((AE_INFO, status, "Error reading AC Adapter state"));
+		ACPI_EXCEPTION((AE_INFO, status,
+				"Error reading AC Adapter state"));
 		ac->state = ACPI_AC_STATUS_UNKNOWN;
 		return -ENODEV;
 	}
@@ -201,36 +173,36 @@ static int acpi_ac_open_fs(struct inode *inode, struct file *file)
 	return single_open(file, acpi_ac_seq_show, PDE_DATA(inode));
 }
 
-static int acpi_ac_add_fs(struct acpi_device *device)
+static int acpi_ac_add_fs(struct acpi_ac *ac)
 {
 	struct proc_dir_entry *entry = NULL;
 
 	printk(KERN_WARNING PREFIX "Deprecated procfs I/F for AC is loaded,"
 			" please retry with CONFIG_ACPI_PROCFS_POWER cleared\n");
-	if (!acpi_device_dir(device)) {
-		acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
-						     acpi_ac_dir);
-		if (!acpi_device_dir(device))
+	if (!acpi_device_dir(ac->adev)) {
+		acpi_device_dir(ac->adev) =
+			proc_mkdir(acpi_device_bid(ac->adev), acpi_ac_dir);
+		if (!acpi_device_dir(ac->adev))
 			return -ENODEV;
 	}
 
 	/* 'state' [R] */
 	entry = proc_create_data(ACPI_AC_FILE_STATE,
-				 S_IRUGO, acpi_device_dir(device),
-				 &acpi_ac_fops, acpi_driver_data(device));
+				 S_IRUGO, acpi_device_dir(ac->adev),
+				 &acpi_ac_fops, ac);
 	if (!entry)
 		return -ENODEV;
 	return 0;
 }
 
-static int acpi_ac_remove_fs(struct acpi_device *device)
+static int acpi_ac_remove_fs(struct acpi_ac *ac)
 {
 
-	if (acpi_device_dir(device)) {
-		remove_proc_entry(ACPI_AC_FILE_STATE, acpi_device_dir(device));
-
-		remove_proc_entry(acpi_device_bid(device), acpi_ac_dir);
-		acpi_device_dir(device) = NULL;
+	if (acpi_device_dir(ac->adev)) {
+		remove_proc_entry(ACPI_AC_FILE_STATE,
+				  acpi_device_dir(ac->adev));
+		remove_proc_entry(acpi_device_bid(ac->adev), acpi_ac_dir);
+		acpi_device_dir(ac->adev) = NULL;
 	}
 
 	return 0;
@@ -241,10 +213,9 @@ static int acpi_ac_remove_fs(struct acpi_device *device)
                                    Driver Model
    -------------------------------------------------------------------------- */
 
-static void acpi_ac_notify(struct acpi_device *device, u32 event)
+static void acpi_ac_notify_handler(acpi_handle handle, u32 event, void *data)
 {
-	struct acpi_ac *ac = acpi_driver_data(device);
-
+	struct acpi_ac *ac = data;
 
 	if (!ac)
 		return;
@@ -267,10 +238,10 @@ static void acpi_ac_notify(struct acpi_device *device, u32 event)
 			msleep(ac_sleep_before_get_state_ms);
 
 		acpi_ac_get_state(ac);
-		acpi_bus_generate_netlink_event(device->pnp.device_class,
-						  dev_name(&device->dev), event,
-						  (u32) ac->state);
-		acpi_notifier_call_chain(device, event, (u32) ac->state);
+		acpi_bus_generate_netlink_event(ac->adev->pnp.device_class,
+						dev_name(&ac->pdev->dev),
+						event, (u32) ac->state);
+		acpi_notifier_call_chain(ac->adev, event, (u32) ac->state);
 		kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
 	}
 
@@ -295,50 +266,61 @@ static struct dmi_system_id ac_dmi_table[] = {
 	{},
 };
 
-static int acpi_ac_add(struct acpi_device *device)
+static int acpi_ac_probe(struct platform_device *pdev)
 {
 	int result = 0;
 	struct acpi_ac *ac = NULL;
+	struct acpi_device *adev;
 
-
-	if (!device)
+	if (!pdev)
 		return -EINVAL;
 
+	result = acpi_bus_get_device(ACPI_HANDLE(&pdev->dev), &adev);
+	if (result)
+		return -ENODEV;
+
 	ac = kzalloc(sizeof(struct acpi_ac), GFP_KERNEL);
 	if (!ac)
 		return -ENOMEM;
 
-	ac->device = device;
-	strcpy(acpi_device_name(device), ACPI_AC_DEVICE_NAME);
-	strcpy(acpi_device_class(device), ACPI_AC_CLASS);
-	device->driver_data = ac;
+	strcpy(acpi_device_name(adev), ACPI_AC_DEVICE_NAME);
+	strcpy(acpi_device_class(adev), ACPI_AC_CLASS);
+	ac->adev = adev;
+	ac->pdev = pdev;
+	platform_set_drvdata(pdev, ac);
 
 	result = acpi_ac_get_state(ac);
 	if (result)
 		goto end;
 
 #ifdef CONFIG_ACPI_PROCFS_POWER
-	result = acpi_ac_add_fs(device);
-#endif
+	result = acpi_ac_add_fs(ac);
 	if (result)
 		goto end;
-	ac->charger.name = acpi_device_bid(device);
+#endif
+	ac->charger.name = acpi_device_bid(adev);
 	ac->charger.type = POWER_SUPPLY_TYPE_MAINS;
 	ac->charger.properties = ac_props;
 	ac->charger.num_properties = ARRAY_SIZE(ac_props);
 	ac->charger.get_property = get_ac_property;
-	result = power_supply_register(&ac->device->dev, &ac->charger);
+	result = power_supply_register(&pdev->dev, &ac->charger);
 	if (result)
 		goto end;
 
+	result = acpi_install_notify_handler(ACPI_HANDLE(&pdev->dev),
+			ACPI_DEVICE_NOTIFY, acpi_ac_notify_handler, ac);
+	if (result) {
+		power_supply_unregister(&ac->charger);
+		goto end;
+	}
 	printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
-	       acpi_device_name(device), acpi_device_bid(device),
+	       acpi_device_name(adev), acpi_device_bid(adev),
 	       ac->state ? "on-line" : "off-line");
 
       end:
 	if (result) {
 #ifdef CONFIG_ACPI_PROCFS_POWER
-		acpi_ac_remove_fs(device);
+		acpi_ac_remove_fs(ac);
 #endif
 		kfree(ac);
 	}
@@ -356,7 +338,7 @@ static int acpi_ac_resume(struct device *dev)
 	if (!dev)
 		return -EINVAL;
 
-	ac = acpi_driver_data(to_acpi_device(dev));
+	ac = platform_get_drvdata(to_platform_device(dev));
 	if (!ac)
 		return -EINVAL;
 
@@ -368,21 +350,24 @@ static int acpi_ac_resume(struct device *dev)
 	return 0;
 }
 #endif
+static SIMPLE_DEV_PM_OPS(acpi_ac_pm_ops, NULL, acpi_ac_resume);
 
-static int acpi_ac_remove(struct acpi_device *device)
+static int acpi_ac_remove(struct platform_device *pdev)
 {
-	struct acpi_ac *ac = NULL;
-
+	struct acpi_ac *ac;
 
-	if (!device || !acpi_driver_data(device))
+	if (!pdev)
 		return -EINVAL;
 
-	ac = acpi_driver_data(device);
+	acpi_remove_notify_handler(ACPI_HANDLE(&pdev->dev),
+			ACPI_DEVICE_NOTIFY, acpi_ac_notify_handler);
 
+	ac = platform_get_drvdata(pdev);
 	if (ac->charger.dev)
 		power_supply_unregister(&ac->charger);
+
 #ifdef CONFIG_ACPI_PROCFS_POWER
-	acpi_ac_remove_fs(device);
+	acpi_ac_remove_fs(ac);
 #endif
 
 	kfree(ac);
@@ -390,6 +375,23 @@ static int acpi_ac_remove(struct acpi_device *device)
 	return 0;
 }
 
+static const struct acpi_device_id acpi_ac_match[] = {
+	{ "ACPI0003", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(acpi, acpi_ac_match);
+
+static struct platform_driver acpi_ac_driver = {
+	.probe          = acpi_ac_probe,
+	.remove         = acpi_ac_remove,
+	.driver         = {
+		.name   = "acpi-ac",
+		.owner  = THIS_MODULE,
+		.pm     = &acpi_ac_pm_ops,
+		.acpi_match_table = ACPI_PTR(acpi_ac_match),
+	},
+};
+
 static int __init acpi_ac_init(void)
 {
 	int result;
@@ -403,7 +405,7 @@ static int __init acpi_ac_init(void)
 		return -ENODEV;
 #endif
 
-	result = acpi_bus_register_driver(&acpi_ac_driver);
+	result = platform_driver_register(&acpi_ac_driver);
 	if (result < 0) {
 #ifdef CONFIG_ACPI_PROCFS_POWER
 		acpi_unlock_ac_dir(acpi_ac_dir);
@@ -416,15 +418,10 @@ static int __init acpi_ac_init(void)
 
 static void __exit acpi_ac_exit(void)
 {
-
-	acpi_bus_unregister_driver(&acpi_ac_driver);
-
+	platform_driver_unregister(&acpi_ac_driver);
 #ifdef CONFIG_ACPI_PROCFS_POWER
 	acpi_unlock_ac_dir(acpi_ac_dir);
 #endif
-
-	return;
 }
-
 module_init(acpi_ac_init);
 module_exit(acpi_ac_exit);
diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 1bde12708f9e..6259bc28ef18 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -29,6 +29,7 @@ ACPI_MODULE_NAME("platform");
 static const struct acpi_device_id acpi_platform_device_ids[] = {
 
 	{ "PNP0D40" },
+	{ "ACPI0003" },
 
 	{ }
 };
-- 
cgit 


From 11fa8da5fb14b23ff796c09d61a162a27deeb04f Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Wed, 25 Sep 2013 20:39:46 +0800
Subject: ideapad_laptop: introduce #ifdef CONFIG_PM_SLEEP for PM specific code

ideapad_acpi_resume() and ideapad_pm is meaningful
only if CONFIG_PM_SLEEP is set.
Thus introduce #ifdef for this piece of code.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
CC: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/ideapad-laptop.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 89c4519d48ac..5021c55210e8 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -901,6 +901,7 @@ static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
 	}
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int ideapad_acpi_resume(struct device *device)
 {
 	ideapad_sync_rfk_state(ideapad_priv);
@@ -909,6 +910,7 @@ static int ideapad_acpi_resume(struct device *device)
 }
 
 static SIMPLE_DEV_PM_OPS(ideapad_pm, NULL, ideapad_acpi_resume);
+#endif
 
 static struct acpi_driver ideapad_acpi_driver = {
 	.name = "ideapad_acpi",
@@ -917,7 +919,9 @@ static struct acpi_driver ideapad_acpi_driver = {
 	.ops.add = ideapad_acpi_add,
 	.ops.remove = ideapad_acpi_remove,
 	.ops.notify = ideapad_acpi_notify,
+#ifdef CONFIG_PM_SLEEP
 	.drv.pm = &ideapad_pm,
+#endif
 	.owner = THIS_MODULE,
 };
 module_acpi_driver(ideapad_acpi_driver);
-- 
cgit 


From 469f64349c5e7bd072d1ca5a72b8f2a80ef118f2 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Wed, 25 Sep 2013 20:39:47 +0800
Subject: ideapad_laptop: introduce struct acpi_device pointer to
 ideapad_private structure

Introduce struct acpi_device pointer to ideapad_private structure.
At the same time, replace all adevice with adev to be short and consistent.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
CC: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/ideapad-laptop.c | 48 ++++++++++++++++++-----------------
 1 file changed, 25 insertions(+), 23 deletions(-)

diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 5021c55210e8..edd3656b07b9 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -73,6 +73,7 @@ enum {
 };
 
 struct ideapad_private {
+	struct acpi_device *adev;
 	struct rfkill *rfk[IDEAPAD_RFKILL_DEV_NUM];
 	struct platform_device *platform_device;
 	struct input_dev *inputdev;
@@ -468,9 +469,9 @@ static void ideapad_sync_rfk_state(struct ideapad_private *priv)
 			rfkill_set_hw_state(priv->rfk[i], hw_blocked);
 }
 
-static int ideapad_register_rfkill(struct acpi_device *adevice, int dev)
+static int ideapad_register_rfkill(struct acpi_device *adev, int dev)
 {
-	struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
+	struct ideapad_private *priv = dev_get_drvdata(&adev->dev);
 	int ret;
 	unsigned long sw_blocked;
 
@@ -482,7 +483,7 @@ static int ideapad_register_rfkill(struct acpi_device *adevice, int dev)
 		return 0;
 	}
 
-	priv->rfk[dev] = rfkill_alloc(ideapad_rfk_data[dev].name, &adevice->dev,
+	priv->rfk[dev] = rfkill_alloc(ideapad_rfk_data[dev].name, &adev->dev,
 				      ideapad_rfk_data[dev].type, &ideapad_rfk_ops,
 				      (void *)(long)dev);
 	if (!priv->rfk[dev])
@@ -504,9 +505,9 @@ static int ideapad_register_rfkill(struct acpi_device *adevice, int dev)
 	return 0;
 }
 
-static void ideapad_unregister_rfkill(struct acpi_device *adevice, int dev)
+static void ideapad_unregister_rfkill(struct acpi_device *adev, int dev)
 {
-	struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
+	struct ideapad_private *priv = dev_get_drvdata(&adev->dev);
 
 	if (!priv->rfk[dev])
 		return;
@@ -761,13 +762,13 @@ static const struct acpi_device_id ideapad_device_ids[] = {
 };
 MODULE_DEVICE_TABLE(acpi, ideapad_device_ids);
 
-static void ideapad_sync_touchpad_state(struct acpi_device *adevice)
+static void ideapad_sync_touchpad_state(struct acpi_device *adev)
 {
-	struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
+	struct ideapad_private *priv = dev_get_drvdata(&adev->dev);
 	unsigned long value;
 
 	/* Without reading from EC touchpad LED doesn't switch state */
-	if (!read_ec_data(adevice->handle, VPCCMD_R_TOUCHPAD, &value)) {
+	if (!read_ec_data(adev->handle, VPCCMD_R_TOUCHPAD, &value)) {
 		/* Some IdeaPads don't really turn off touchpad - they only
 		 * switch the LED state. We (de)activate KBC AUX port to turn
 		 * touchpad off and on. We send KEY_TOUCHPAD_OFF and
@@ -779,22 +780,23 @@ static void ideapad_sync_touchpad_state(struct acpi_device *adevice)
 	}
 }
 
-static int ideapad_acpi_add(struct acpi_device *adevice)
+static int ideapad_acpi_add(struct acpi_device *adev)
 {
 	int ret, i;
 	int cfg;
 	struct ideapad_private *priv;
 
-	if (read_method_int(adevice->handle, "_CFG", &cfg))
+	if (read_method_int(adev->handle, "_CFG", &cfg))
 		return -ENODEV;
 
 	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
-	dev_set_drvdata(&adevice->dev, priv);
+	dev_set_drvdata(&adev->dev, priv);
 	ideapad_priv = priv;
-	ideapad_handle = adevice->handle;
+	ideapad_handle = adev->handle;
 	priv->cfg = cfg;
+	priv->adev = adev;
 
 	ret = ideapad_platform_init(priv);
 	if (ret)
@@ -810,12 +812,12 @@ static int ideapad_acpi_add(struct acpi_device *adevice)
 
 	for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) {
 		if (test_bit(ideapad_rfk_data[i].cfgbit, &priv->cfg))
-			ideapad_register_rfkill(adevice, i);
+			ideapad_register_rfkill(adev, i);
 		else
 			priv->rfk[i] = NULL;
 	}
 	ideapad_sync_rfk_state(priv);
-	ideapad_sync_touchpad_state(adevice);
+	ideapad_sync_touchpad_state(adev);
 
 	if (!acpi_video_backlight_support()) {
 		ret = ideapad_backlight_init(priv);
@@ -827,7 +829,7 @@ static int ideapad_acpi_add(struct acpi_device *adevice)
 
 backlight_failed:
 	for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
-		ideapad_unregister_rfkill(adevice, i);
+		ideapad_unregister_rfkill(adev, i);
 	ideapad_input_exit(priv);
 input_failed:
 	ideapad_debugfs_exit(priv);
@@ -838,27 +840,27 @@ platform_failed:
 	return ret;
 }
 
-static int ideapad_acpi_remove(struct acpi_device *adevice)
+static int ideapad_acpi_remove(struct acpi_device *adev)
 {
-	struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
+	struct ideapad_private *priv = dev_get_drvdata(&adev->dev);
 	int i;
 
 	ideapad_backlight_exit(priv);
 	for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
-		ideapad_unregister_rfkill(adevice, i);
+		ideapad_unregister_rfkill(adev, i);
 	ideapad_input_exit(priv);
 	ideapad_debugfs_exit(priv);
 	ideapad_platform_exit(priv);
-	dev_set_drvdata(&adevice->dev, NULL);
+	dev_set_drvdata(&adev->dev, NULL);
 	kfree(priv);
 
 	return 0;
 }
 
-static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
+static void ideapad_acpi_notify(struct acpi_device *adev, u32 event)
 {
-	struct ideapad_private *priv = dev_get_drvdata(&adevice->dev);
-	acpi_handle handle = adevice->handle;
+	struct ideapad_private *priv = dev_get_drvdata(&adev->dev);
+	acpi_handle handle = adev->handle;
 	unsigned long vpc1, vpc2, vpc_bit;
 
 	if (read_ec_data(handle, VPCCMD_R_VPC1, &vpc1))
@@ -880,7 +882,7 @@ static void ideapad_acpi_notify(struct acpi_device *adevice, u32 event)
 				ideapad_input_report(priv, vpc_bit);
 				break;
 			case 5:
-				ideapad_sync_touchpad_state(adevice);
+				ideapad_sync_touchpad_state(adev);
 				break;
 			case 4:
 				ideapad_backlight_notify_brightness(priv);
-- 
cgit 


From 75a11f11a49da9862ff2fbae75428076571cebe4 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Wed, 25 Sep 2013 20:39:48 +0800
Subject: ideapad_laptop: convert internal function calls to use
 ideapad_private as parameter

As struct ideapad_private has all the information needed for any operations,
convert ideapad_register_rfkill()/ideapad_unregister_rfkill() and
ideapad_sync_touchpad_state() to use struct ideapad_private as the parameter,
to be consistent with the others.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
CC: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/ideapad-laptop.c | 38 +++++++++++++++++++----------------
 1 file changed, 21 insertions(+), 17 deletions(-)

diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index edd3656b07b9..70fb5ba7e47a 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -469,9 +469,8 @@ static void ideapad_sync_rfk_state(struct ideapad_private *priv)
 			rfkill_set_hw_state(priv->rfk[i], hw_blocked);
 }
 
-static int ideapad_register_rfkill(struct acpi_device *adev, int dev)
+static int ideapad_register_rfkill(struct ideapad_private *priv, int dev)
 {
-	struct ideapad_private *priv = dev_get_drvdata(&adev->dev);
 	int ret;
 	unsigned long sw_blocked;
 
@@ -483,8 +482,10 @@ static int ideapad_register_rfkill(struct acpi_device *adev, int dev)
 		return 0;
 	}
 
-	priv->rfk[dev] = rfkill_alloc(ideapad_rfk_data[dev].name, &adev->dev,
-				      ideapad_rfk_data[dev].type, &ideapad_rfk_ops,
+	priv->rfk[dev] = rfkill_alloc(ideapad_rfk_data[dev].name,
+				      &priv->adev->dev,
+				      ideapad_rfk_data[dev].type,
+				      &ideapad_rfk_ops,
 				      (void *)(long)dev);
 	if (!priv->rfk[dev])
 		return -ENOMEM;
@@ -505,10 +506,8 @@ static int ideapad_register_rfkill(struct acpi_device *adev, int dev)
 	return 0;
 }
 
-static void ideapad_unregister_rfkill(struct acpi_device *adev, int dev)
+static void ideapad_unregister_rfkill(struct ideapad_private *priv, int dev)
 {
-	struct ideapad_private *priv = dev_get_drvdata(&adev->dev);
-
 	if (!priv->rfk[dev])
 		return;
 
@@ -762,13 +761,12 @@ static const struct acpi_device_id ideapad_device_ids[] = {
 };
 MODULE_DEVICE_TABLE(acpi, ideapad_device_ids);
 
-static void ideapad_sync_touchpad_state(struct acpi_device *adev)
+static void ideapad_sync_touchpad_state(struct ideapad_private *priv)
 {
-	struct ideapad_private *priv = dev_get_drvdata(&adev->dev);
 	unsigned long value;
 
 	/* Without reading from EC touchpad LED doesn't switch state */
-	if (!read_ec_data(adev->handle, VPCCMD_R_TOUCHPAD, &value)) {
+	if (!read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &value)) {
 		/* Some IdeaPads don't really turn off touchpad - they only
 		 * switch the LED state. We (de)activate KBC AUX port to turn
 		 * touchpad off and on. We send KEY_TOUCHPAD_OFF and
@@ -812,12 +810,12 @@ static int ideapad_acpi_add(struct acpi_device *adev)
 
 	for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) {
 		if (test_bit(ideapad_rfk_data[i].cfgbit, &priv->cfg))
-			ideapad_register_rfkill(adev, i);
+			ideapad_register_rfkill(priv, i);
 		else
 			priv->rfk[i] = NULL;
 	}
 	ideapad_sync_rfk_state(priv);
-	ideapad_sync_touchpad_state(adev);
+	ideapad_sync_touchpad_state(priv);
 
 	if (!acpi_video_backlight_support()) {
 		ret = ideapad_backlight_init(priv);
@@ -829,7 +827,7 @@ static int ideapad_acpi_add(struct acpi_device *adev)
 
 backlight_failed:
 	for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
-		ideapad_unregister_rfkill(adev, i);
+		ideapad_unregister_rfkill(priv, i);
 	ideapad_input_exit(priv);
 input_failed:
 	ideapad_debugfs_exit(priv);
@@ -847,7 +845,7 @@ static int ideapad_acpi_remove(struct acpi_device *adev)
 
 	ideapad_backlight_exit(priv);
 	for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
-		ideapad_unregister_rfkill(adev, i);
+		ideapad_unregister_rfkill(priv, i);
 	ideapad_input_exit(priv);
 	ideapad_debugfs_exit(priv);
 	ideapad_platform_exit(priv);
@@ -882,7 +880,7 @@ static void ideapad_acpi_notify(struct acpi_device *adev, u32 event)
 				ideapad_input_report(priv, vpc_bit);
 				break;
 			case 5:
-				ideapad_sync_touchpad_state(adev);
+				ideapad_sync_touchpad_state(priv);
 				break;
 			case 4:
 				ideapad_backlight_notify_brightness(priv);
@@ -906,8 +904,14 @@ static void ideapad_acpi_notify(struct acpi_device *adev, u32 event)
 #ifdef CONFIG_PM_SLEEP
 static int ideapad_acpi_resume(struct device *device)
 {
-	ideapad_sync_rfk_state(ideapad_priv);
-	ideapad_sync_touchpad_state(to_acpi_device(device));
+	struct ideapad_private *priv;
+
+	if (!device)
+		return -EINVAL;
+	priv = dev_get_drvdata(device);
+
+	ideapad_sync_rfk_state(priv);
+	ideapad_sync_touchpad_state(priv);
 	return 0;
 }
 
-- 
cgit 


From 331e0ea243ed15bbf0958f46861505f2065e99f8 Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Wed, 25 Sep 2013 20:39:49 +0800
Subject: ideapad_laptop: remove ideapad_handle and ideapad_priv

The current code use ideapad_handle and ideapad_priv to store
some information for the ideapad device.
But as they are global/static variables, the driver will be broken
if there are more than one ideapad ACPI device node on a platform.
Although this does not happen for now and may not happen in the future,
but still, this is a software bug.

Remove these two variables in this patch.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
CC: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/ideapad-laptop.c | 114 ++++++++++++++++++++--------------
 1 file changed, 69 insertions(+), 45 deletions(-)

diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 70fb5ba7e47a..cad48b5cc409 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -72,9 +72,15 @@ enum {
 	VPCCMD_W_BL_POWER = 0x33,
 };
 
+struct ideapad_rfk_priv {
+	int dev;
+	struct ideapad_private *priv;
+};
+
 struct ideapad_private {
 	struct acpi_device *adev;
 	struct rfkill *rfk[IDEAPAD_RFKILL_DEV_NUM];
+	struct ideapad_rfk_priv rfk_priv[IDEAPAD_RFKILL_DEV_NUM];
 	struct platform_device *platform_device;
 	struct input_dev *inputdev;
 	struct backlight_device *blightdev;
@@ -82,8 +88,6 @@ struct ideapad_private {
 	unsigned long cfg;
 };
 
-static acpi_handle ideapad_handle;
-static struct ideapad_private *ideapad_priv;
 static bool no_bt_rfkill;
 module_param(no_bt_rfkill, bool, 0444);
 MODULE_PARM_DESC(no_bt_rfkill, "No rfkill for bluetooth.");
@@ -201,34 +205,38 @@ static int write_ec_cmd(acpi_handle handle, int cmd, unsigned long data)
  */
 static int debugfs_status_show(struct seq_file *s, void *data)
 {
+	struct ideapad_private *priv = s->private;
 	unsigned long value;
 
-	if (!read_ec_data(ideapad_handle, VPCCMD_R_BL_MAX, &value))
+	if (!priv)
+		return -EINVAL;
+
+	if (!read_ec_data(priv->adev->handle, VPCCMD_R_BL_MAX, &value))
 		seq_printf(s, "Backlight max:\t%lu\n", value);
-	if (!read_ec_data(ideapad_handle, VPCCMD_R_BL, &value))
+	if (!read_ec_data(priv->adev->handle, VPCCMD_R_BL, &value))
 		seq_printf(s, "Backlight now:\t%lu\n", value);
-	if (!read_ec_data(ideapad_handle, VPCCMD_R_BL_POWER, &value))
+	if (!read_ec_data(priv->adev->handle, VPCCMD_R_BL_POWER, &value))
 		seq_printf(s, "BL power value:\t%s\n", value ? "On" : "Off");
 	seq_printf(s, "=====================\n");
 
-	if (!read_ec_data(ideapad_handle, VPCCMD_R_RF, &value))
+	if (!read_ec_data(priv->adev->handle, VPCCMD_R_RF, &value))
 		seq_printf(s, "Radio status:\t%s(%lu)\n",
 			   value ? "On" : "Off", value);
-	if (!read_ec_data(ideapad_handle, VPCCMD_R_WIFI, &value))
+	if (!read_ec_data(priv->adev->handle, VPCCMD_R_WIFI, &value))
 		seq_printf(s, "Wifi status:\t%s(%lu)\n",
 			   value ? "On" : "Off", value);
-	if (!read_ec_data(ideapad_handle, VPCCMD_R_BT, &value))
+	if (!read_ec_data(priv->adev->handle, VPCCMD_R_BT, &value))
 		seq_printf(s, "BT status:\t%s(%lu)\n",
 			   value ? "On" : "Off", value);
-	if (!read_ec_data(ideapad_handle, VPCCMD_R_3G, &value))
+	if (!read_ec_data(priv->adev->handle, VPCCMD_R_3G, &value))
 		seq_printf(s, "3G status:\t%s(%lu)\n",
 			   value ? "On" : "Off", value);
 	seq_printf(s, "=====================\n");
 
-	if (!read_ec_data(ideapad_handle, VPCCMD_R_TOUCHPAD, &value))
+	if (!read_ec_data(priv->adev->handle, VPCCMD_R_TOUCHPAD, &value))
 		seq_printf(s, "Touchpad status:%s(%lu)\n",
 			   value ? "On" : "Off", value);
-	if (!read_ec_data(ideapad_handle, VPCCMD_R_CAMERA, &value))
+	if (!read_ec_data(priv->adev->handle, VPCCMD_R_CAMERA, &value))
 		seq_printf(s, "Camera status:\t%s(%lu)\n",
 			   value ? "On" : "Off", value);
 
@@ -237,7 +245,7 @@ static int debugfs_status_show(struct seq_file *s, void *data)
 
 static int debugfs_status_open(struct inode *inode, struct file *file)
 {
-	return single_open(file, debugfs_status_show, NULL);
+	return single_open(file, debugfs_status_show, inode->i_private);
 }
 
 static const struct file_operations debugfs_status_fops = {
@@ -250,21 +258,23 @@ static const struct file_operations debugfs_status_fops = {
 
 static int debugfs_cfg_show(struct seq_file *s, void *data)
 {
-	if (!ideapad_priv) {
+	struct ideapad_private *priv = s->private;
+
+	if (!priv) {
 		seq_printf(s, "cfg: N/A\n");
 	} else {
 		seq_printf(s, "cfg: 0x%.8lX\n\nCapability: ",
-			   ideapad_priv->cfg);
-		if (test_bit(CFG_BT_BIT, &ideapad_priv->cfg))
+			   priv->cfg);
+		if (test_bit(CFG_BT_BIT, &priv->cfg))
 			seq_printf(s, "Bluetooth ");
-		if (test_bit(CFG_3G_BIT, &ideapad_priv->cfg))
+		if (test_bit(CFG_3G_BIT, &priv->cfg))
 			seq_printf(s, "3G ");
-		if (test_bit(CFG_WIFI_BIT, &ideapad_priv->cfg))
+		if (test_bit(CFG_WIFI_BIT, &priv->cfg))
 			seq_printf(s, "Wireless ");
-		if (test_bit(CFG_CAMERA_BIT, &ideapad_priv->cfg))
+		if (test_bit(CFG_CAMERA_BIT, &priv->cfg))
 			seq_printf(s, "Camera ");
 		seq_printf(s, "\nGraphic: ");
-		switch ((ideapad_priv->cfg)&0x700) {
+		switch ((priv->cfg)&0x700) {
 		case 0x100:
 			seq_printf(s, "Intel");
 			break;
@@ -288,7 +298,7 @@ static int debugfs_cfg_show(struct seq_file *s, void *data)
 
 static int debugfs_cfg_open(struct inode *inode, struct file *file)
 {
-	return single_open(file, debugfs_cfg_show, NULL);
+	return single_open(file, debugfs_cfg_show, inode->i_private);
 }
 
 static const struct file_operations debugfs_cfg_fops = {
@@ -309,14 +319,14 @@ static int ideapad_debugfs_init(struct ideapad_private *priv)
 		goto errout;
 	}
 
-	node = debugfs_create_file("cfg", S_IRUGO, priv->debug, NULL,
+	node = debugfs_create_file("cfg", S_IRUGO, priv->debug, priv,
 				   &debugfs_cfg_fops);
 	if (!node) {
 		pr_err("failed to create cfg in debugfs");
 		goto errout;
 	}
 
-	node = debugfs_create_file("status", S_IRUGO, priv->debug, NULL,
+	node = debugfs_create_file("status", S_IRUGO, priv->debug, priv,
 				   &debugfs_status_fops);
 	if (!node) {
 		pr_err("failed to create status in debugfs");
@@ -343,8 +353,9 @@ static ssize_t show_ideapad_cam(struct device *dev,
 				char *buf)
 {
 	unsigned long result;
+	struct ideapad_private *priv = dev_get_drvdata(dev);
 
-	if (read_ec_data(ideapad_handle, VPCCMD_R_CAMERA, &result))
+	if (read_ec_data(priv->adev->handle, VPCCMD_R_CAMERA, &result))
 		return sprintf(buf, "-1\n");
 	return sprintf(buf, "%lu\n", result);
 }
@@ -354,12 +365,13 @@ static ssize_t store_ideapad_cam(struct device *dev,
 				 const char *buf, size_t count)
 {
 	int ret, state;
+	struct ideapad_private *priv = dev_get_drvdata(dev);
 
 	if (!count)
 		return 0;
 	if (sscanf(buf, "%i", &state) != 1)
 		return -EINVAL;
-	ret = write_ec_cmd(ideapad_handle, VPCCMD_W_CAMERA, state);
+	ret = write_ec_cmd(priv->adev->handle, VPCCMD_W_CAMERA, state);
 	if (ret < 0)
 		return -EIO;
 	return count;
@@ -372,8 +384,9 @@ static ssize_t show_ideapad_fan(struct device *dev,
 				char *buf)
 {
 	unsigned long result;
+	struct ideapad_private *priv = dev_get_drvdata(dev);
 
-	if (read_ec_data(ideapad_handle, VPCCMD_R_FAN, &result))
+	if (read_ec_data(priv->adev->handle, VPCCMD_R_FAN, &result))
 		return sprintf(buf, "-1\n");
 	return sprintf(buf, "%lu\n", result);
 }
@@ -383,6 +396,7 @@ static ssize_t store_ideapad_fan(struct device *dev,
 				 const char *buf, size_t count)
 {
 	int ret, state;
+	struct ideapad_private *priv = dev_get_drvdata(dev);
 
 	if (!count)
 		return 0;
@@ -390,7 +404,7 @@ static ssize_t store_ideapad_fan(struct device *dev,
 		return -EINVAL;
 	if (state < 0 || state > 4 || state == 3)
 		return -EINVAL;
-	ret = write_ec_cmd(ideapad_handle, VPCCMD_W_FAN, state);
+	ret = write_ec_cmd(priv->adev->handle, VPCCMD_W_FAN, state);
 	if (ret < 0)
 		return -EIO;
 	return count;
@@ -416,7 +430,8 @@ static umode_t ideapad_is_visible(struct kobject *kobj,
 		supported = test_bit(CFG_CAMERA_BIT, &(priv->cfg));
 	else if (attr == &dev_attr_fan_mode.attr) {
 		unsigned long value;
-		supported = !read_ec_data(ideapad_handle, VPCCMD_R_FAN, &value);
+		supported = !read_ec_data(priv->adev->handle, VPCCMD_R_FAN,
+					  &value);
 	} else
 		supported = true;
 
@@ -446,9 +461,9 @@ const struct ideapad_rfk_data ideapad_rfk_data[] = {
 
 static int ideapad_rfk_set(void *data, bool blocked)
 {
-	unsigned long opcode = (unsigned long)data;
+	struct ideapad_rfk_priv *priv = data;
 
-	return write_ec_cmd(ideapad_handle, opcode, !blocked);
+	return write_ec_cmd(priv->priv->adev->handle, priv->dev, !blocked);
 }
 
 static struct rfkill_ops ideapad_rfk_ops = {
@@ -460,7 +475,7 @@ static void ideapad_sync_rfk_state(struct ideapad_private *priv)
 	unsigned long hw_blocked;
 	int i;
 
-	if (read_ec_data(ideapad_handle, VPCCMD_R_RF, &hw_blocked))
+	if (read_ec_data(priv->adev->handle, VPCCMD_R_RF, &hw_blocked))
 		return;
 	hw_blocked = !hw_blocked;
 
@@ -477,20 +492,22 @@ static int ideapad_register_rfkill(struct ideapad_private *priv, int dev)
 	if (no_bt_rfkill &&
 	    (ideapad_rfk_data[dev].type == RFKILL_TYPE_BLUETOOTH)) {
 		/* Force to enable bluetooth when no_bt_rfkill=1 */
-		write_ec_cmd(ideapad_handle,
+		write_ec_cmd(priv->adev->handle,
 			     ideapad_rfk_data[dev].opcode, 1);
 		return 0;
 	}
+	priv->rfk_priv[dev].dev = dev;
+	priv->rfk_priv[dev].priv = priv;
 
 	priv->rfk[dev] = rfkill_alloc(ideapad_rfk_data[dev].name,
 				      &priv->adev->dev,
 				      ideapad_rfk_data[dev].type,
 				      &ideapad_rfk_ops,
-				      (void *)(long)dev);
+				      &priv->rfk_priv[dev]);
 	if (!priv->rfk[dev])
 		return -ENOMEM;
 
-	if (read_ec_data(ideapad_handle, ideapad_rfk_data[dev].opcode-1,
+	if (read_ec_data(priv->adev->handle, ideapad_rfk_data[dev].opcode-1,
 			 &sw_blocked)) {
 		rfkill_init_sw_state(priv->rfk[dev], 0);
 	} else {
@@ -623,7 +640,7 @@ static void ideapad_input_novokey(struct ideapad_private *priv)
 {
 	unsigned long long_pressed;
 
-	if (read_ec_data(ideapad_handle, VPCCMD_R_NOVO, &long_pressed))
+	if (read_ec_data(priv->adev->handle, VPCCMD_R_NOVO, &long_pressed))
 		return;
 	if (long_pressed)
 		ideapad_input_report(priv, 17);
@@ -635,7 +652,7 @@ static void ideapad_check_special_buttons(struct ideapad_private *priv)
 {
 	unsigned long bit, value;
 
-	read_ec_data(ideapad_handle, VPCCMD_R_SPECIAL_BUTTONS, &value);
+	read_ec_data(priv->adev->handle, VPCCMD_R_SPECIAL_BUTTONS, &value);
 
 	for (bit = 0; bit < 16; bit++) {
 		if (test_bit(bit, &value)) {
@@ -662,19 +679,28 @@ static void ideapad_check_special_buttons(struct ideapad_private *priv)
  */
 static int ideapad_backlight_get_brightness(struct backlight_device *blightdev)
 {
+	struct ideapad_private *priv = bl_get_data(blightdev);
 	unsigned long now;
 
-	if (read_ec_data(ideapad_handle, VPCCMD_R_BL, &now))
+	if (!priv)
+		return -EINVAL;
+
+	if (read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now))
 		return -EIO;
 	return now;
 }
 
 static int ideapad_backlight_update_status(struct backlight_device *blightdev)
 {
-	if (write_ec_cmd(ideapad_handle, VPCCMD_W_BL,
+	struct ideapad_private *priv = bl_get_data(blightdev);
+
+	if (!priv)
+		return -EINVAL;
+
+	if (write_ec_cmd(priv->adev->handle, VPCCMD_W_BL,
 			 blightdev->props.brightness))
 		return -EIO;
-	if (write_ec_cmd(ideapad_handle, VPCCMD_W_BL_POWER,
+	if (write_ec_cmd(priv->adev->handle, VPCCMD_W_BL_POWER,
 			 blightdev->props.power == FB_BLANK_POWERDOWN ? 0 : 1))
 		return -EIO;
 
@@ -692,11 +718,11 @@ static int ideapad_backlight_init(struct ideapad_private *priv)
 	struct backlight_properties props;
 	unsigned long max, now, power;
 
-	if (read_ec_data(ideapad_handle, VPCCMD_R_BL_MAX, &max))
+	if (read_ec_data(priv->adev->handle, VPCCMD_R_BL_MAX, &max))
 		return -EIO;
-	if (read_ec_data(ideapad_handle, VPCCMD_R_BL, &now))
+	if (read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now))
 		return -EIO;
-	if (read_ec_data(ideapad_handle, VPCCMD_R_BL_POWER, &power))
+	if (read_ec_data(priv->adev->handle, VPCCMD_R_BL_POWER, &power))
 		return -EIO;
 
 	memset(&props, 0, sizeof(struct backlight_properties));
@@ -734,7 +760,7 @@ static void ideapad_backlight_notify_power(struct ideapad_private *priv)
 
 	if (!blightdev)
 		return;
-	if (read_ec_data(ideapad_handle, VPCCMD_R_BL_POWER, &power))
+	if (read_ec_data(priv->adev->handle, VPCCMD_R_BL_POWER, &power))
 		return;
 	blightdev->props.power = power ? FB_BLANK_UNBLANK : FB_BLANK_POWERDOWN;
 }
@@ -745,7 +771,7 @@ static void ideapad_backlight_notify_brightness(struct ideapad_private *priv)
 
 	/* if we control brightness via acpi video driver */
 	if (priv->blightdev == NULL) {
-		read_ec_data(ideapad_handle, VPCCMD_R_BL, &now);
+		read_ec_data(priv->adev->handle, VPCCMD_R_BL, &now);
 		return;
 	}
 
@@ -791,8 +817,6 @@ static int ideapad_acpi_add(struct acpi_device *adev)
 	if (!priv)
 		return -ENOMEM;
 	dev_set_drvdata(&adev->dev, priv);
-	ideapad_priv = priv;
-	ideapad_handle = adev->handle;
 	priv->cfg = cfg;
 	priv->adev = adev;
 
-- 
cgit 


From b5c37b798f2d29b9b2926e0abf008a13ce6c91fe Mon Sep 17 00:00:00 2001
From: Zhang Rui <rui.zhang@intel.com>
Date: Wed, 25 Sep 2013 20:39:50 +0800
Subject: ideapad_laptop: convert ideapad device/driver to platform bus

This patch does two things,
 1. enumerate the ideapad device node to platform bus.
 2. convert the current driver from ACPI bus to platform bus.

Note, with this patch, the platform device node created by ACPI,
with the name VPC2004:00, is used as the parent device of
the input, backlight, rfkill sysfs class device.
Plus the ideapad_platform private sysfs attributes,
i.e. camera_power and fan_mode, are also moved to the new
platform device node.

The previous platform device node "ideapad" is removed.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
CC: Matthew Garrett <matthew.garrett@nebula.com>
CC: Ike Panhc <ike.pan@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_platform.c          |   2 +-
 drivers/platform/x86/ideapad-laptop.c | 194 ++++++++++++++++------------------
 2 files changed, 93 insertions(+), 103 deletions(-)

diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 6259bc28ef18..c20b02beec7c 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -30,7 +30,7 @@ static const struct acpi_device_id acpi_platform_device_ids[] = {
 
 	{ "PNP0D40" },
 	{ "ACPI0003" },
-
+	{ "VPC2004" },
 	{ }
 };
 
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index cad48b5cc409..6788acc22ab9 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -500,7 +500,7 @@ static int ideapad_register_rfkill(struct ideapad_private *priv, int dev)
 	priv->rfk_priv[dev].priv = priv;
 
 	priv->rfk[dev] = rfkill_alloc(ideapad_rfk_data[dev].name,
-				      &priv->adev->dev,
+				      &priv->platform_device->dev,
 				      ideapad_rfk_data[dev].type,
 				      &ideapad_rfk_ops,
 				      &priv->rfk_priv[dev]);
@@ -535,37 +535,16 @@ static void ideapad_unregister_rfkill(struct ideapad_private *priv, int dev)
 /*
  * Platform device
  */
-static int ideapad_platform_init(struct ideapad_private *priv)
+static int ideapad_sysfs_init(struct ideapad_private *priv)
 {
-	int result;
-
-	priv->platform_device = platform_device_alloc("ideapad", -1);
-	if (!priv->platform_device)
-		return -ENOMEM;
-	platform_set_drvdata(priv->platform_device, priv);
-
-	result = platform_device_add(priv->platform_device);
-	if (result)
-		goto fail_platform_device;
-
-	result = sysfs_create_group(&priv->platform_device->dev.kobj,
+	return sysfs_create_group(&priv->platform_device->dev.kobj,
 				    &ideapad_attribute_group);
-	if (result)
-		goto fail_sysfs;
-	return 0;
-
-fail_sysfs:
-	platform_device_del(priv->platform_device);
-fail_platform_device:
-	platform_device_put(priv->platform_device);
-	return result;
 }
 
-static void ideapad_platform_exit(struct ideapad_private *priv)
+static void ideapad_sysfs_exit(struct ideapad_private *priv)
 {
 	sysfs_remove_group(&priv->platform_device->dev.kobj,
 			   &ideapad_attribute_group);
-	platform_device_unregister(priv->platform_device);
 }
 
 /*
@@ -781,12 +760,6 @@ static void ideapad_backlight_notify_brightness(struct ideapad_private *priv)
 /*
  * module init/exit
  */
-static const struct acpi_device_id ideapad_device_ids[] = {
-	{ "VPC2004", 0},
-	{ "", 0},
-};
-MODULE_DEVICE_TABLE(acpi, ideapad_device_ids);
-
 static void ideapad_sync_touchpad_state(struct ideapad_private *priv)
 {
 	unsigned long value;
@@ -804,11 +777,61 @@ static void ideapad_sync_touchpad_state(struct ideapad_private *priv)
 	}
 }
 
-static int ideapad_acpi_add(struct acpi_device *adev)
+static void ideapad_acpi_notify(acpi_handle handle, u32 event, void *data)
+{
+	struct ideapad_private *priv = data;
+	unsigned long vpc1, vpc2, vpc_bit;
+
+	if (read_ec_data(handle, VPCCMD_R_VPC1, &vpc1))
+		return;
+	if (read_ec_data(handle, VPCCMD_R_VPC2, &vpc2))
+		return;
+
+	vpc1 = (vpc2 << 8) | vpc1;
+	for (vpc_bit = 0; vpc_bit < 16; vpc_bit++) {
+		if (test_bit(vpc_bit, &vpc1)) {
+			switch (vpc_bit) {
+			case 9:
+				ideapad_sync_rfk_state(priv);
+				break;
+			case 13:
+			case 11:
+			case 7:
+			case 6:
+				ideapad_input_report(priv, vpc_bit);
+				break;
+			case 5:
+				ideapad_sync_touchpad_state(priv);
+				break;
+			case 4:
+				ideapad_backlight_notify_brightness(priv);
+				break;
+			case 3:
+				ideapad_input_novokey(priv);
+				break;
+			case 2:
+				ideapad_backlight_notify_power(priv);
+				break;
+			case 0:
+				ideapad_check_special_buttons(priv);
+				break;
+			default:
+				pr_info("Unknown event: %lu\n", vpc_bit);
+			}
+		}
+	}
+}
+
+static int ideapad_acpi_add(struct platform_device *pdev)
 {
 	int ret, i;
 	int cfg;
 	struct ideapad_private *priv;
+	struct acpi_device *adev;
+
+	ret = acpi_bus_get_device(ACPI_HANDLE(&pdev->dev), &adev);
+	if (ret)
+		return -ENODEV;
 
 	if (read_method_int(adev->handle, "_CFG", &cfg))
 		return -ENODEV;
@@ -816,13 +839,15 @@ static int ideapad_acpi_add(struct acpi_device *adev)
 	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
-	dev_set_drvdata(&adev->dev, priv);
+
+	dev_set_drvdata(&pdev->dev, priv);
 	priv->cfg = cfg;
 	priv->adev = adev;
+	priv->platform_device = pdev;
 
-	ret = ideapad_platform_init(priv);
+	ret = ideapad_sysfs_init(priv);
 	if (ret)
-		goto platform_failed;
+		goto sysfs_failed;
 
 	ret = ideapad_debugfs_init(priv);
 	if (ret)
@@ -846,9 +871,14 @@ static int ideapad_acpi_add(struct acpi_device *adev)
 		if (ret && ret != -ENODEV)
 			goto backlight_failed;
 	}
+	ret = acpi_install_notify_handler(adev->handle,
+		ACPI_DEVICE_NOTIFY, ideapad_acpi_notify, priv);
+	if (ret)
+		goto notification_failed;
 
 	return 0;
-
+notification_failed:
+	ideapad_backlight_exit(priv);
 backlight_failed:
 	for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
 		ideapad_unregister_rfkill(priv, i);
@@ -856,75 +886,31 @@ backlight_failed:
 input_failed:
 	ideapad_debugfs_exit(priv);
 debugfs_failed:
-	ideapad_platform_exit(priv);
-platform_failed:
+	ideapad_sysfs_exit(priv);
+sysfs_failed:
 	kfree(priv);
 	return ret;
 }
 
-static int ideapad_acpi_remove(struct acpi_device *adev)
+static int ideapad_acpi_remove(struct platform_device *pdev)
 {
-	struct ideapad_private *priv = dev_get_drvdata(&adev->dev);
+	struct ideapad_private *priv = dev_get_drvdata(&pdev->dev);
 	int i;
 
+	acpi_remove_notify_handler(priv->adev->handle,
+		ACPI_DEVICE_NOTIFY, ideapad_acpi_notify);
 	ideapad_backlight_exit(priv);
 	for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++)
 		ideapad_unregister_rfkill(priv, i);
 	ideapad_input_exit(priv);
 	ideapad_debugfs_exit(priv);
-	ideapad_platform_exit(priv);
-	dev_set_drvdata(&adev->dev, NULL);
+	ideapad_sysfs_exit(priv);
+	dev_set_drvdata(&pdev->dev, NULL);
 	kfree(priv);
 
 	return 0;
 }
 
-static void ideapad_acpi_notify(struct acpi_device *adev, u32 event)
-{
-	struct ideapad_private *priv = dev_get_drvdata(&adev->dev);
-	acpi_handle handle = adev->handle;
-	unsigned long vpc1, vpc2, vpc_bit;
-
-	if (read_ec_data(handle, VPCCMD_R_VPC1, &vpc1))
-		return;
-	if (read_ec_data(handle, VPCCMD_R_VPC2, &vpc2))
-		return;
-
-	vpc1 = (vpc2 << 8) | vpc1;
-	for (vpc_bit = 0; vpc_bit < 16; vpc_bit++) {
-		if (test_bit(vpc_bit, &vpc1)) {
-			switch (vpc_bit) {
-			case 9:
-				ideapad_sync_rfk_state(priv);
-				break;
-			case 13:
-			case 11:
-			case 7:
-			case 6:
-				ideapad_input_report(priv, vpc_bit);
-				break;
-			case 5:
-				ideapad_sync_touchpad_state(priv);
-				break;
-			case 4:
-				ideapad_backlight_notify_brightness(priv);
-				break;
-			case 3:
-				ideapad_input_novokey(priv);
-				break;
-			case 2:
-				ideapad_backlight_notify_power(priv);
-				break;
-			case 0:
-				ideapad_check_special_buttons(priv);
-				break;
-			default:
-				pr_info("Unknown event: %lu\n", vpc_bit);
-			}
-		}
-	}
-}
-
 #ifdef CONFIG_PM_SLEEP
 static int ideapad_acpi_resume(struct device *device)
 {
@@ -938,23 +924,27 @@ static int ideapad_acpi_resume(struct device *device)
 	ideapad_sync_touchpad_state(priv);
 	return 0;
 }
-
-static SIMPLE_DEV_PM_OPS(ideapad_pm, NULL, ideapad_acpi_resume);
 #endif
+static SIMPLE_DEV_PM_OPS(ideapad_pm, NULL, ideapad_acpi_resume);
 
-static struct acpi_driver ideapad_acpi_driver = {
-	.name = "ideapad_acpi",
-	.class = "IdeaPad",
-	.ids = ideapad_device_ids,
-	.ops.add = ideapad_acpi_add,
-	.ops.remove = ideapad_acpi_remove,
-	.ops.notify = ideapad_acpi_notify,
-#ifdef CONFIG_PM_SLEEP
-	.drv.pm = &ideapad_pm,
-#endif
-	.owner = THIS_MODULE,
+static const struct acpi_device_id ideapad_device_ids[] = {
+	{ "VPC2004", 0},
+	{ "", 0},
 };
-module_acpi_driver(ideapad_acpi_driver);
+MODULE_DEVICE_TABLE(acpi, ideapad_device_ids);
+
+static struct platform_driver ideapad_acpi_driver = {
+	.probe = ideapad_acpi_add,
+	.remove = ideapad_acpi_remove,
+	.driver = {
+		.name   = "ideapad_acpi",
+		.owner  = THIS_MODULE,
+		.pm     = &ideapad_pm,
+		.acpi_match_table = ACPI_PTR(ideapad_device_ids),
+	},
+};
+
+module_platform_driver(ideapad_acpi_driver);
 
 MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
 MODULE_DESCRIPTION("IdeaPad ACPI Extras");
-- 
cgit 


From 61e570a9df06f9a8a168b0f1b9fc221736d5d3f3 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Mon, 9 Sep 2013 16:24:53 -0700
Subject: ARM: msm: Remove irqs-*.h files for DT based targets

We don't want or need the irqs.h files from the DT based MSM
targets. Remove these header files and select sparse irq so that
we don't try to include the mach/irqs.h file.

Reviewed-by: Rohit Vaswani <rvaswani@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
---
 arch/arm/mach-msm/Kconfig                  |   2 +
 arch/arm/mach-msm/include/mach/irqs-8960.h | 277 -----------------------------
 arch/arm/mach-msm/include/mach/irqs-8x60.h | 258 ---------------------------
 arch/arm/mach-msm/include/mach/irqs.h      |   5 -
 4 files changed, 2 insertions(+), 540 deletions(-)
 delete mode 100644 arch/arm/mach-msm/include/mach/irqs-8960.h
 delete mode 100644 arch/arm/mach-msm/include/mach/irqs-8x60.h

diff --git a/arch/arm/mach-msm/Kconfig b/arch/arm/mach-msm/Kconfig
index 905efc8cac79..020240cc2ae7 100644
--- a/arch/arm/mach-msm/Kconfig
+++ b/arch/arm/mach-msm/Kconfig
@@ -49,6 +49,7 @@ config ARCH_MSM8X60
 	select GPIO_MSM_V2
 	select HAVE_SMP
 	select MSM_SCM if SMP
+	select SPARSE_IRQ
 	select USE_OF
 
 config ARCH_MSM8960
@@ -58,6 +59,7 @@ config ARCH_MSM8960
 	select HAVE_SMP
 	select GPIO_MSM_V2
 	select MSM_SCM if SMP
+	select SPARSE_IRQ
 	select USE_OF
 
 config MSM_HAS_DEBUG_UART_HS
diff --git a/arch/arm/mach-msm/include/mach/irqs-8960.h b/arch/arm/mach-msm/include/mach/irqs-8960.h
deleted file mode 100644
index 81ab2a6792bd..000000000000
--- a/arch/arm/mach-msm/include/mach/irqs-8960.h
+++ /dev/null
@@ -1,277 +0,0 @@
-/* Copyright (c) 2011 Code Aurora Forum. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#ifndef __ASM_ARCH_MSM_IRQS_8960_H
-#define __ASM_ARCH_MSM_IRQS_8960_H
-
-/* MSM ACPU Interrupt Numbers */
-
-/* 0-15:  STI/SGI (software triggered/generated interrupts)
-   16-31: PPI (private peripheral interrupts)
-   32+:   SPI (shared peripheral interrupts) */
-
-#define GIC_PPI_START 16
-#define GIC_SPI_START 32
-
-#define INT_VGIC				(GIC_PPI_START + 0)
-#define INT_DEBUG_TIMER_EXP			(GIC_PPI_START + 1)
-#define INT_GP_TIMER_EXP			(GIC_PPI_START + 2)
-#define INT_GP_TIMER2_EXP			(GIC_PPI_START + 3)
-#define WDT0_ACCSCSSNBARK_INT			(GIC_PPI_START + 4)
-#define WDT1_ACCSCSSNBARK_INT			(GIC_PPI_START + 5)
-#define AVS_SVICINT				(GIC_PPI_START + 6)
-#define AVS_SVICINTSWDONE			(GIC_PPI_START + 7)
-#define CPU_DBGCPUXCOMMRXFULL			(GIC_PPI_START + 8)
-#define CPU_DBGCPUXCOMMTXEMPTY			(GIC_PPI_START + 9)
-#define CPU_SICCPUXPERFMONIRPTREQ		(GIC_PPI_START + 10)
-#define SC_AVSCPUXDOWN				(GIC_PPI_START + 11)
-#define SC_AVSCPUXUP				(GIC_PPI_START + 12)
-#define SC_SICCPUXACGIRPTREQ			(GIC_PPI_START + 13)
-#define SC_SICCPUXEXTFAULTIRPTREQ		(GIC_PPI_START + 14)
-/* PPI 15 is unused */
-
-#define SC_SICMPUIRPTREQ			(GIC_SPI_START + 0)
-#define SC_SICL2IRPTREQ				(GIC_SPI_START + 1)
-#define SC_SICL2PERFMONIRPTREQ			(GIC_SPI_START + 2)
-#define SC_SICAGCIRPTREQ			(GIC_SPI_START + 3)
-#define TLMM_APCC_DIR_CONN_IRQ_0		(GIC_SPI_START + 4)
-#define TLMM_APCC_DIR_CONN_IRQ_1		(GIC_SPI_START + 5)
-#define TLMM_APCC_DIR_CONN_IRQ_2		(GIC_SPI_START + 6)
-#define TLMM_APCC_DIR_CONN_IRQ_3		(GIC_SPI_START + 7)
-#define TLMM_APCC_DIR_CONN_IRQ_4		(GIC_SPI_START + 8)
-#define TLMM_APCC_DIR_CONN_IRQ_5		(GIC_SPI_START + 9)
-#define TLMM_APCC_DIR_CONN_IRQ_6		(GIC_SPI_START + 10)
-#define TLMM_APCC_DIR_CONN_IRQ_7		(GIC_SPI_START + 11)
-#define TLMM_APCC_DIR_CONN_IRQ_8		(GIC_SPI_START + 12)
-#define TLMM_APCC_DIR_CONN_IRQ_9		(GIC_SPI_START + 13)
-#define PM8921_SEC_IRQ_103			(GIC_SPI_START + 14)
-#define PM8018_SEC_IRQ_106			(GIC_SPI_START + 15)
-#define TLMM_APCC_SUMMARY_IRQ			(GIC_SPI_START + 16)
-#define SPDM_RT_1_IRQ				(GIC_SPI_START + 17)
-#define SPDM_DIAG_IRQ				(GIC_SPI_START + 18)
-#define RPM_APCC_CPU0_GP_HIGH_IRQ		(GIC_SPI_START + 19)
-#define RPM_APCC_CPU0_GP_MEDIUM_IRQ		(GIC_SPI_START + 20)
-#define RPM_APCC_CPU0_GP_LOW_IRQ		(GIC_SPI_START + 21)
-#define RPM_APCC_CPU0_WAKE_UP_IRQ		(GIC_SPI_START + 22)
-#define RPM_APCC_CPU1_GP_HIGH_IRQ		(GIC_SPI_START + 23)
-#define RPM_APCC_CPU1_GP_MEDIUM_IRQ		(GIC_SPI_START + 24)
-#define RPM_APCC_CPU1_GP_LOW_IRQ		(GIC_SPI_START + 25)
-#define RPM_APCC_CPU1_WAKE_UP_IRQ		(GIC_SPI_START + 26)
-#define SSBI2_2_SC_CPU0_SECURE_IRQ		(GIC_SPI_START + 27)
-#define SSBI2_2_SC_CPU0_NON_SECURE_IRQ		(GIC_SPI_START + 28)
-#define SSBI2_1_SC_CPU0_SECURE_IRQ		(GIC_SPI_START + 29)
-#define SSBI2_1_SC_CPU0_NON_SECURE_IRQ		(GIC_SPI_START + 30)
-#define MSMC_SC_SEC_CE_IRQ			(GIC_SPI_START + 31)
-#define MSMC_SC_PRI_CE_IRQ			(GIC_SPI_START + 32)
-#define SLIMBUS0_CORE_EE1_IRQ			(GIC_SPI_START + 33)
-#define SLIMBUS0_BAM_EE1_IRQ			(GIC_SPI_START + 34)
-#define Q6FW_WDOG_EXPIRED_IRQ			(GIC_SPI_START + 35)
-#define Q6SW_WDOG_EXPIRED_IRQ			(GIC_SPI_START + 36)
-#define MSS_TO_APPS_IRQ_0			(GIC_SPI_START + 37)
-#define MSS_TO_APPS_IRQ_1			(GIC_SPI_START + 38)
-#define MSS_TO_APPS_IRQ_2			(GIC_SPI_START + 39)
-#define MSS_TO_APPS_IRQ_3			(GIC_SPI_START + 40)
-#define MSS_TO_APPS_IRQ_4			(GIC_SPI_START + 41)
-#define MSS_TO_APPS_IRQ_5			(GIC_SPI_START + 42)
-#define MSS_TO_APPS_IRQ_6			(GIC_SPI_START + 43)
-#define MSS_TO_APPS_IRQ_7			(GIC_SPI_START + 44)
-#define MSS_TO_APPS_IRQ_8			(GIC_SPI_START + 45)
-#define MSS_TO_APPS_IRQ_9			(GIC_SPI_START + 46)
-#define VPE_IRQ					(GIC_SPI_START + 47)
-#define VFE_IRQ					(GIC_SPI_START + 48)
-#define VCODEC_IRQ				(GIC_SPI_START + 49)
-#define TV_ENC_IRQ				(GIC_SPI_START + 50)
-#define SMMU_VPE_CB_SC_SECURE_IRQ		(GIC_SPI_START + 51)
-#define SMMU_VPE_CB_SC_NON_SECURE_IRQ		(GIC_SPI_START + 52)
-#define SMMU_VFE_CB_SC_SECURE_IRQ		(GIC_SPI_START + 53)
-#define SMMU_VFE_CB_SC_NON_SECURE_IRQ		(GIC_SPI_START + 54)
-#define SMMU_VCODEC_B_CB_SC_SECURE_IRQ		(GIC_SPI_START + 55)
-#define SMMU_VCODEC_B_CB_SC_NON_SECURE_IRQ	(GIC_SPI_START + 56)
-#define SMMU_VCODEC_A_CB_SC_SECURE_IRQ		(GIC_SPI_START + 57)
-#define SMMU_VCODEC_A_CB_SC_NON_SECURE_IRQ	(GIC_SPI_START + 58)
-#define SMMU_ROT_CB_SC_SECURE_IRQ		(GIC_SPI_START + 59)
-#define SMMU_ROT_CB_SC_NON_SECURE_IRQ		(GIC_SPI_START + 60)
-#define SMMU_MDP1_CB_SC_SECURE_IRQ		(GIC_SPI_START + 61)
-#define SMMU_MDP1_CB_SC_NON_SECURE_IRQ		(GIC_SPI_START + 62)
-#define SMMU_MDP0_CB_SC_SECURE_IRQ		(GIC_SPI_START + 63)
-#define SMMU_MDP0_CB_SC_NON_SECURE_IRQ		(GIC_SPI_START + 64)
-#define SMMU_JPEGD_CB_SC_SECURE_IRQ		(GIC_SPI_START + 65)
-#define SMMU_JPEGD_CB_SC_NON_SECURE_IRQ		(GIC_SPI_START + 66)
-#define SMMU_IJPEG_CB_SC_SECURE_IRQ		(GIC_SPI_START + 67)
-#define SMMU_IJPEG_CB_SC_NON_SECURE_IRQ		(GIC_SPI_START + 68)
-#define SMMU_GFX3D_CB_SC_SECURE_IRQ		(GIC_SPI_START + 69)
-#define SMMU_GFX3D_CB_SC_NON_SECURE_IRQ		(GIC_SPI_START + 70)
-#define SMMU_GFX2D0_CB_SC_SECURE_IRQ		(GIC_SPI_START + 71)
-#define SMMU_GFX2D0_CB_SC_NON_SECURE_IRQ	(GIC_SPI_START + 72)
-#define ROT_IRQ					(GIC_SPI_START + 73)
-#define MMSS_FABRIC_IRQ				(GIC_SPI_START + 74)
-#define MDP_IRQ					(GIC_SPI_START + 75)
-#define JPEGD_IRQ				(GIC_SPI_START + 76)
-#define JPEG_IRQ				(GIC_SPI_START + 77)
-#define MMSS_IMEM_IRQ				(GIC_SPI_START + 78)
-#define HDMI_IRQ				(GIC_SPI_START + 79)
-#define GFX3D_IRQ				(GIC_SPI_START + 80)
-#define GFX2D0_IRQ				(GIC_SPI_START + 81)
-#define DSI1_IRQ				(GIC_SPI_START + 82)
-#define CSI_1_IRQ				(GIC_SPI_START + 83)
-#define CSI_0_IRQ				(GIC_SPI_START + 84)
-#define LPASS_SCSS_AUDIO_IF_OUT0_IRQ		(GIC_SPI_START + 85)
-#define LPASS_SCSS_MIDI_IRQ			(GIC_SPI_START + 86)
-#define LPASS_Q6SS_WDOG_EXPIRED			(GIC_SPI_START + 87)
-#define LPASS_SCSS_GP_LOW_IRQ			(GIC_SPI_START + 88)
-#define LPASS_SCSS_GP_MEDIUM_IRQ		(GIC_SPI_START + 89)
-#define LPASS_SCSS_GP_HIGH_IRQ			(GIC_SPI_START + 90)
-#define TOP_IMEM_IRQ				(GIC_SPI_START + 91)
-#define FABRIC_SYS_IRQ				(GIC_SPI_START + 92)
-#define FABRIC_APPS_IRQ				(GIC_SPI_START + 93)
-#define USB1_HS_BAM_IRQ				(GIC_SPI_START + 94)
-#define SDC4_BAM_IRQ				(GIC_SPI_START + 95)
-#define SDC3_BAM_IRQ				(GIC_SPI_START + 96)
-#define SDC2_BAM_IRQ				(GIC_SPI_START + 97)
-#define SDC1_BAM_IRQ				(GIC_SPI_START + 98)
-#define FABRIC_SPS_IRQ				(GIC_SPI_START + 99)
-#define USB1_HS_IRQ				(GIC_SPI_START + 100)
-#define SDC4_IRQ_0				(GIC_SPI_START + 101)
-#define SDC3_IRQ_0				(GIC_SPI_START + 102)
-#define SDC2_IRQ_0				(GIC_SPI_START + 103)
-#define SDC1_IRQ_0				(GIC_SPI_START + 104)
-#define SPS_BAM_DMA_IRQ				(GIC_SPI_START + 105)
-#define SPS_SEC_VIOL_IRQ			(GIC_SPI_START + 106)
-#define SPS_MTI_0				(GIC_SPI_START + 107)
-#define SPS_MTI_1				(GIC_SPI_START + 108)
-#define SPS_MTI_2				(GIC_SPI_START + 109)
-#define SPS_MTI_3				(GIC_SPI_START + 110)
-#define SPS_MTI_4				(GIC_SPI_START + 111)
-#define SPS_MTI_5				(GIC_SPI_START + 112)
-#define SPS_MTI_6				(GIC_SPI_START + 113)
-#define SPS_MTI_7				(GIC_SPI_START + 114)
-#define SPS_MTI_8				(GIC_SPI_START + 115)
-#define SPS_MTI_9				(GIC_SPI_START + 116)
-#define SPS_MTI_10				(GIC_SPI_START + 117)
-#define SPS_MTI_11				(GIC_SPI_START + 118)
-#define SPS_MTI_12				(GIC_SPI_START + 119)
-#define SPS_MTI_13				(GIC_SPI_START + 120)
-#define SPS_MTI_14				(GIC_SPI_START + 121)
-#define SPS_MTI_15				(GIC_SPI_START + 122)
-#define SPS_MTI_16				(GIC_SPI_START + 123)
-#define SPS_MTI_17				(GIC_SPI_START + 124)
-#define SPS_MTI_18				(GIC_SPI_START + 125)
-#define SPS_MTI_19				(GIC_SPI_START + 126)
-#define SPS_MTI_20				(GIC_SPI_START + 127)
-#define SPS_MTI_21				(GIC_SPI_START + 128)
-#define SPS_MTI_22				(GIC_SPI_START + 129)
-#define SPS_MTI_23				(GIC_SPI_START + 130)
-#define SPS_MTI_24				(GIC_SPI_START + 131)
-#define SPS_MTI_25				(GIC_SPI_START + 132)
-#define SPS_MTI_26				(GIC_SPI_START + 133)
-#define SPS_MTI_27				(GIC_SPI_START + 134)
-#define SPS_MTI_28				(GIC_SPI_START + 135)
-#define SPS_MTI_29				(GIC_SPI_START + 136)
-#define SPS_MTI_30				(GIC_SPI_START + 137)
-#define SPS_MTI_31				(GIC_SPI_START + 138)
-#define CSIPHY_4LN_IRQ				(GIC_SPI_START + 139)
-#define CSIPHY_2LN_IRQ				(GIC_SPI_START + 140)
-#define USB2_IRQ				(GIC_SPI_START + 141)
-#define USB1_IRQ				(GIC_SPI_START + 142)
-#define TSSC_SSBI_IRQ				(GIC_SPI_START + 143)
-#define TSSC_SAMPLE_IRQ				(GIC_SPI_START + 144)
-#define TSSC_PENUP_IRQ				(GIC_SPI_START + 145)
-#define GSBI1_UARTDM_IRQ			(GIC_SPI_START + 146)
-#define GSBI1_QUP_IRQ				(GIC_SPI_START + 147)
-#define GSBI2_UARTDM_IRQ			(GIC_SPI_START + 148)
-#define GSBI2_QUP_IRQ			        (GIC_SPI_START + 149)
-#define GSBI3_UARTDM_IRQ			(GIC_SPI_START + 150)
-#define GSBI3_QUP_IRQ				(GIC_SPI_START + 151)
-#define GSBI4_UARTDM_IRQ			(GIC_SPI_START + 152)
-#define GSBI4_QUP_IRQ				(GIC_SPI_START + 153)
-#define GSBI5_UARTDM_IRQ			(GIC_SPI_START + 154)
-#define GSBI5_QUP_IRQ				(GIC_SPI_START + 155)
-#define GSBI6_UARTDM_IRQ			(GIC_SPI_START + 156)
-#define GSBI6_QUP_IRQ				(GIC_SPI_START + 157)
-#define GSBI7_UARTDM_IRQ			(GIC_SPI_START + 158)
-#define GSBI7_QUP_IRQ				(GIC_SPI_START + 159)
-#define GSBI8_UARTDM_IRQ			(GIC_SPI_START + 160)
-#define GSBI8_QUP_IRQ				(GIC_SPI_START + 161)
-#define TSIF_TSPP_IRQ				(GIC_SPI_START + 162)
-#define TSIF_BAM_IRQ				(GIC_SPI_START + 163)
-#define TSIF2_IRQ				(GIC_SPI_START + 164)
-#define TSIF1_IRQ				(GIC_SPI_START + 165)
-#define DSI2_IRQ				(GIC_SPI_START + 166)
-#define ISPIF_IRQ				(GIC_SPI_START + 167)
-#define MSMC_SC_SEC_TMR_IRQ			(GIC_SPI_START + 168)
-#define MSMC_SC_SEC_WDOG_BARK_IRQ		(GIC_SPI_START + 169)
-#define INT_ADM0_SCSS_0_IRQ			(GIC_SPI_START + 170)
-#define INT_ADM0_SCSS_1_IRQ			(GIC_SPI_START + 171)
-#define INT_ADM0_SCSS_2_IRQ			(GIC_SPI_START + 172)
-#define INT_ADM0_SCSS_3_IRQ			(GIC_SPI_START + 173)
-#define CC_SCSS_WDT1CPU1BITEEXPIRED		(GIC_SPI_START + 174)
-#define CC_SCSS_WDT1CPU0BITEEXPIRED		(GIC_SPI_START + 175)
-#define CC_SCSS_WDT0CPU1BITEEXPIRED		(GIC_SPI_START + 176)
-#define CC_SCSS_WDT0CPU0BITEEXPIRED		(GIC_SPI_START + 177)
-#define TSENS_UPPER_LOWER_INT			(GIC_SPI_START + 178)
-#define SSBI2_2_SC_CPU1_SECURE_INT		(GIC_SPI_START + 179)
-#define SSBI2_2_SC_CPU1_NON_SECURE_INT		(GIC_SPI_START + 180)
-#define SSBI2_1_SC_CPU1_SECURE_INT		(GIC_SPI_START + 181)
-#define SSBI2_1_SC_CPU1_NON_SECURE_INT		(GIC_SPI_START + 182)
-#define XPU_SUMMARY_IRQ				(GIC_SPI_START + 183)
-#define BUS_EXCEPTION_SUMMARY_IRQ		(GIC_SPI_START + 184)
-#define HSDDRX_EBI1CH0_IRQ			(GIC_SPI_START + 185)
-#define HSDDRX_EBI1CH1_IRQ			(GIC_SPI_START + 186)
-#define SDC5_BAM_IRQ				(GIC_SPI_START + 187)
-#define SDC5_IRQ_0				(GIC_SPI_START + 188)
-#define GSBI9_UARTDM_IRQ			(GIC_SPI_START + 189)
-#define GSBI9_QUP_IRQ				(GIC_SPI_START + 190)
-#define GSBI10_UARTDM_IRQ			(GIC_SPI_START + 191)
-#define GSBI10_QUP_IRQ				(GIC_SPI_START + 192)
-#define GSBI11_UARTDM_IRQ			(GIC_SPI_START + 193)
-#define GSBI11_QUP_IRQ				(GIC_SPI_START + 194)
-#define GSBI12_UARTDM_IRQ			(GIC_SPI_START + 195)
-#define GSBI12_QUP_IRQ				(GIC_SPI_START + 196)
-#define RIVA_APSS_LTECOEX_IRQ			(GIC_SPI_START + 197)
-#define RIVA_APSS_SPARE_IRQ			(GIC_SPI_START + 198)
-#define RIVA_APSS_WDOG_BITE_RESET_RDY_IRQ	(GIC_SPI_START + 199)
-#define RIVA_ASS_RESET_DONE_IRQ			(GIC_SPI_START + 200)
-#define RIVA_APSS_ASIC_IRQ			(GIC_SPI_START + 201)
-#define RIVA_APPS_WLAN_RX_DATA_AVAIL_IRQ	(GIC_SPI_START + 202)
-#define RIVA_APPS_WLAN_DATA_XFER_DONE_IRQ	(GIC_SPI_START + 203)
-#define RIVA_APPS_WLAM_SMSM_IRQ			(GIC_SPI_START + 204)
-#define RIVA_APPS_LOG_CTRL_IRQ			(GIC_SPI_START + 205)
-#define RIVA_APPS_FM_CTRL_IRQ			(GIC_SPI_START + 206)
-#define RIVA_APPS_HCI_IRQ			(GIC_SPI_START + 207)
-#define RIVA_APPS_WLAN_CTRL_IRQ			(GIC_SPI_START + 208)
-#define A2_BAM_IRQ				(GIC_SPI_START + 209)
-#define SMMU_GFX2D1_CB_SC_SECURE_IRQ		(GIC_SPI_START + 210)
-#define SMMU_GFX2D1_CB_SC_NON_SECURE_IRQ	(GIC_SPI_START + 211)
-#define GFX2D1_IRQ				(GIC_SPI_START + 212)
-#define PPSS_WDOG_TIMER_IRQ			(GIC_SPI_START + 213)
-#define SPS_SLIMBUS_CORE_EE0_IRQ		(GIC_SPI_START + 214)
-#define SPS_SLIMBUS_BAM_EE0_IRQ			(GIC_SPI_START + 215)
-#define QDSS_ETB_IRQ				(GIC_SPI_START + 216)
-#define QDSS_CTI2KPSS_CPU1_IRQ			(GIC_SPI_START + 217)
-#define QDSS_CTI2KPSS_CPU0_IRQ			(GIC_SPI_START + 218)
-#define TLMM_APCC_DIR_CONN_IRQ_16		(GIC_SPI_START + 219)
-#define TLMM_APCC_DIR_CONN_IRQ_17		(GIC_SPI_START + 220)
-#define TLMM_APCC_DIR_CONN_IRQ_18		(GIC_SPI_START + 221)
-#define TLMM_APCC_DIR_CONN_IRQ_19		(GIC_SPI_START + 222)
-#define TLMM_APCC_DIR_CONN_IRQ_20		(GIC_SPI_START + 223)
-#define TLMM_APCC_DIR_CONN_IRQ_21		(GIC_SPI_START + 224)
-#define PM8921_SEC_IRQ_104			(GIC_SPI_START + 225)
-#define PM8018_SEC_IRQ_107			(GIC_SPI_START + 226)
-
-/* For now, use the maximum number of interrupts until a pending GIC issue
- * is sorted out */
-#define NR_MSM_IRQS 1020
-#define NR_BOARD_IRQS 0
-#define NR_GPIO_IRQS 0
-
-#endif
-
diff --git a/arch/arm/mach-msm/include/mach/irqs-8x60.h b/arch/arm/mach-msm/include/mach/irqs-8x60.h
deleted file mode 100644
index f65841c74c0b..000000000000
--- a/arch/arm/mach-msm/include/mach/irqs-8x60.h
+++ /dev/null
@@ -1,258 +0,0 @@
-/* Copyright (c) 2010 Code Aurora Forum. All rights reserved.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#ifndef __ASM_ARCH_MSM_IRQS_8X60_H
-#define __ASM_ARCH_MSM_IRQS_8X60_H
-
-/* MSM ACPU Interrupt Numbers */
-
-/* 0-15:  STI/SGI (software triggered/generated interrupts)
- * 16-31: PPI (private peripheral interrupts)
- * 32+:   SPI (shared peripheral interrupts)
- */
-
-#define GIC_PPI_START 16
-#define GIC_SPI_START 32
-
-#define INT_DEBUG_TIMER_EXP			(GIC_PPI_START + 0)
-#define INT_GP_TIMER_EXP			(GIC_PPI_START + 1)
-#define INT_GP_TIMER2_EXP			(GIC_PPI_START + 2)
-#define WDT0_ACCSCSSNBARK_INT			(GIC_PPI_START + 3)
-#define WDT1_ACCSCSSNBARK_INT			(GIC_PPI_START + 4)
-#define AVS_SVICINT				(GIC_PPI_START + 5)
-#define AVS_SVICINTSWDONE			(GIC_PPI_START + 6)
-#define CPU_DBGCPUXCOMMRXFULL			(GIC_PPI_START + 7)
-#define CPU_DBGCPUXCOMMTXEMPTY			(GIC_PPI_START + 8)
-#define CPU_SICCPUXPERFMONIRPTREQ		(GIC_PPI_START + 9)
-#define SC_AVSCPUXDOWN				(GIC_PPI_START + 10)
-#define SC_AVSCPUXUP				(GIC_PPI_START + 11)
-#define SC_SICCPUXACGIRPTREQ			(GIC_PPI_START + 12)
-/* PPI 13 to 15 are unused */
-
-
-#define SC_SICMPUIRPTREQ			(GIC_SPI_START + 0)
-#define SC_SICL2IRPTREQ				(GIC_SPI_START + 1)
-#define SC_SICL2ACGIRPTREQ			(GIC_SPI_START + 2)
-#define NC					(GIC_SPI_START + 3)
-#define TLMM_SCSS_DIR_CONN_IRQ_0		(GIC_SPI_START + 4)
-#define TLMM_SCSS_DIR_CONN_IRQ_1		(GIC_SPI_START + 5)
-#define TLMM_SCSS_DIR_CONN_IRQ_2		(GIC_SPI_START + 6)
-#define TLMM_SCSS_DIR_CONN_IRQ_3		(GIC_SPI_START + 7)
-#define TLMM_SCSS_DIR_CONN_IRQ_4		(GIC_SPI_START + 8)
-#define TLMM_SCSS_DIR_CONN_IRQ_5		(GIC_SPI_START + 9)
-#define TLMM_SCSS_DIR_CONN_IRQ_6		(GIC_SPI_START + 10)
-#define TLMM_SCSS_DIR_CONN_IRQ_7		(GIC_SPI_START + 11)
-#define TLMM_SCSS_DIR_CONN_IRQ_8		(GIC_SPI_START + 12)
-#define TLMM_SCSS_DIR_CONN_IRQ_9		(GIC_SPI_START + 13)
-#define PM8058_SEC_IRQ_N			(GIC_SPI_START + 14)
-#define PM8901_SEC_IRQ_N			(GIC_SPI_START + 15)
-#define TLMM_SCSS_SUMMARY_IRQ			(GIC_SPI_START + 16)
-#define SPDM_RT_1_IRQ				(GIC_SPI_START + 17)
-#define SPDM_DIAG_IRQ				(GIC_SPI_START + 18)
-#define RPM_SCSS_CPU0_GP_HIGH_IRQ		(GIC_SPI_START + 19)
-#define RPM_SCSS_CPU0_GP_MEDIUM_IRQ		(GIC_SPI_START + 20)
-#define RPM_SCSS_CPU0_GP_LOW_IRQ		(GIC_SPI_START + 21)
-#define RPM_SCSS_CPU0_WAKE_UP_IRQ		(GIC_SPI_START + 22)
-#define RPM_SCSS_CPU1_GP_HIGH_IRQ		(GIC_SPI_START + 23)
-#define RPM_SCSS_CPU1_GP_MEDIUM_IRQ		(GIC_SPI_START + 24)
-#define RPM_SCSS_CPU1_GP_LOW_IRQ		(GIC_SPI_START + 25)
-#define RPM_SCSS_CPU1_WAKE_UP_IRQ		(GIC_SPI_START + 26)
-#define SSBI2_2_SC_CPU0_SECURE_INT		(GIC_SPI_START + 27)
-#define SSBI2_2_SC_CPU0_NON_SECURE_INT		(GIC_SPI_START + 28)
-#define SSBI2_1_SC_CPU0_SECURE_INT		(GIC_SPI_START + 29)
-#define SSBI2_1_SC_CPU0_NON_SECURE_INT		(GIC_SPI_START + 30)
-#define MSMC_SC_SEC_CE_IRQ			(GIC_SPI_START + 31)
-#define MSMC_SC_PRI_CE_IRQ			(GIC_SPI_START + 32)
-#define MARM_FIQ				(GIC_SPI_START + 33)
-#define MARM_IRQ				(GIC_SPI_START + 34)
-#define MARM_L2CC_IRQ				(GIC_SPI_START + 35)
-#define MARM_WDOG_EXPIRED			(GIC_SPI_START + 36)
-#define MARM_SCSS_GP_IRQ_0			(GIC_SPI_START + 37)
-#define MARM_SCSS_GP_IRQ_1			(GIC_SPI_START + 38)
-#define MARM_SCSS_GP_IRQ_2			(GIC_SPI_START + 39)
-#define MARM_SCSS_GP_IRQ_3			(GIC_SPI_START + 40)
-#define MARM_SCSS_GP_IRQ_4			(GIC_SPI_START + 41)
-#define MARM_SCSS_GP_IRQ_5			(GIC_SPI_START + 42)
-#define MARM_SCSS_GP_IRQ_6			(GIC_SPI_START + 43)
-#define MARM_SCSS_GP_IRQ_7			(GIC_SPI_START + 44)
-#define MARM_SCSS_GP_IRQ_8			(GIC_SPI_START + 45)
-#define MARM_SCSS_GP_IRQ_9			(GIC_SPI_START + 46)
-#define VPE_IRQ					(GIC_SPI_START + 47)
-#define VFE_IRQ					(GIC_SPI_START + 48)
-#define VCODEC_IRQ				(GIC_SPI_START + 49)
-#define TV_ENC_IRQ				(GIC_SPI_START + 50)
-#define SMMU_VPE_CB_SC_SECURE_IRQ		(GIC_SPI_START + 51)
-#define SMMU_VPE_CB_SC_NON_SECURE_IRQ		(GIC_SPI_START + 52)
-#define SMMU_VFE_CB_SC_SECURE_IRQ		(GIC_SPI_START + 53)
-#define SMMU_VFE_CB_SC_NON_SECURE_IRQ		(GIC_SPI_START + 54)
-#define SMMU_VCODEC_B_CB_SC_SECURE_IRQ		(GIC_SPI_START + 55)
-#define SMMU_VCODEC_B_CB_SC_NON_SECURE_IRQ	(GIC_SPI_START + 56)
-#define SMMU_VCODEC_A_CB_SC_SECURE_IRQ		(GIC_SPI_START + 57)
-#define SMMU_VCODEC_A_CB_SC_NON_SECURE_IRQ	(GIC_SPI_START + 58)
-#define SMMU_ROT_CB_SC_SECURE_IRQ		(GIC_SPI_START + 59)
-#define SMMU_ROT_CB_SC_NON_SECURE_IRQ		(GIC_SPI_START + 60)
-#define SMMU_MDP1_CB_SC_SECURE_IRQ		(GIC_SPI_START + 61)
-#define SMMU_MDP1_CB_SC_NON_SECURE_IRQ		(GIC_SPI_START + 62)
-#define SMMU_MDP0_CB_SC_SECURE_IRQ		(GIC_SPI_START + 63)
-#define SMMU_MDP0_CB_SC_NON_SECURE_IRQ		(GIC_SPI_START + 64)
-#define SMMU_JPEGD_CB_SC_SECURE_IRQ		(GIC_SPI_START + 65)
-#define SMMU_JPEGD_CB_SC_NON_SECURE_IRQ		(GIC_SPI_START + 66)
-#define SMMU_IJPEG_CB_SC_SECURE_IRQ		(GIC_SPI_START + 67)
-#define SMMU_IJPEG_CB_SC_NON_SECURE_IRQ		(GIC_SPI_START + 68)
-#define SMMU_GFX3D_CB_SC_SECURE_IRQ		(GIC_SPI_START + 69)
-#define SMMU_GFX3D_CB_SC_NON_SECURE_IRQ		(GIC_SPI_START + 70)
-#define SMMU_GFX2D0_CB_SC_SECURE_IRQ		(GIC_SPI_START + 71)
-#define SMMU_GFX2D0_CB_SC_NON_SECURE_IRQ	(GIC_SPI_START + 72)
-#define ROT_IRQ					(GIC_SPI_START + 73)
-#define MMSS_FABRIC_IRQ				(GIC_SPI_START + 74)
-#define MDP_IRQ					(GIC_SPI_START + 75)
-#define JPEGD_IRQ				(GIC_SPI_START + 76)
-#define JPEG_IRQ				(GIC_SPI_START + 77)
-#define MMSS_IMEM_IRQ				(GIC_SPI_START + 78)
-#define HDMI_IRQ				(GIC_SPI_START + 79)
-#define GFX3D_IRQ				(GIC_SPI_START + 80)
-#define GFX2D0_IRQ				(GIC_SPI_START + 81)
-#define DSI_IRQ					(GIC_SPI_START + 82)
-#define CSI_1_IRQ				(GIC_SPI_START + 83)
-#define CSI_0_IRQ				(GIC_SPI_START + 84)
-#define LPASS_SCSS_AUDIO_IF_OUT0_IRQ		(GIC_SPI_START + 85)
-#define LPASS_SCSS_MIDI_IRQ			(GIC_SPI_START + 86)
-#define LPASS_Q6SS_WDOG_EXPIRED			(GIC_SPI_START + 87)
-#define LPASS_SCSS_GP_LOW_IRQ			(GIC_SPI_START + 88)
-#define LPASS_SCSS_GP_MEDIUM_IRQ		(GIC_SPI_START + 89)
-#define LPASS_SCSS_GP_HIGH_IRQ			(GIC_SPI_START + 90)
-#define TOP_IMEM_IRQ				(GIC_SPI_START + 91)
-#define FABRIC_SYS_IRQ				(GIC_SPI_START + 92)
-#define FABRIC_APPS_IRQ				(GIC_SPI_START + 93)
-#define USB1_HS_BAM_IRQ				(GIC_SPI_START + 94)
-#define SDC4_BAM_IRQ				(GIC_SPI_START + 95)
-#define SDC3_BAM_IRQ				(GIC_SPI_START + 96)
-#define SDC2_BAM_IRQ				(GIC_SPI_START + 97)
-#define SDC1_BAM_IRQ				(GIC_SPI_START + 98)
-#define FABRIC_SPS_IRQ				(GIC_SPI_START + 99)
-#define USB1_HS_IRQ				(GIC_SPI_START + 100)
-#define SDC4_IRQ_0				(GIC_SPI_START + 101)
-#define SDC3_IRQ_0				(GIC_SPI_START + 102)
-#define SDC2_IRQ_0				(GIC_SPI_START + 103)
-#define SDC1_IRQ_0				(GIC_SPI_START + 104)
-#define SPS_BAM_DMA_IRQ				(GIC_SPI_START + 105)
-#define SPS_SEC_VIOL_IRQ			(GIC_SPI_START + 106)
-#define SPS_MTI_0				(GIC_SPI_START + 107)
-#define SPS_MTI_1				(GIC_SPI_START + 108)
-#define SPS_MTI_2				(GIC_SPI_START + 109)
-#define SPS_MTI_3				(GIC_SPI_START + 110)
-#define SPS_MTI_4				(GIC_SPI_START + 111)
-#define SPS_MTI_5				(GIC_SPI_START + 112)
-#define SPS_MTI_6				(GIC_SPI_START + 113)
-#define SPS_MTI_7				(GIC_SPI_START + 114)
-#define SPS_MTI_8				(GIC_SPI_START + 115)
-#define SPS_MTI_9				(GIC_SPI_START + 116)
-#define SPS_MTI_10				(GIC_SPI_START + 117)
-#define SPS_MTI_11				(GIC_SPI_START + 118)
-#define SPS_MTI_12				(GIC_SPI_START + 119)
-#define SPS_MTI_13				(GIC_SPI_START + 120)
-#define SPS_MTI_14				(GIC_SPI_START + 121)
-#define SPS_MTI_15				(GIC_SPI_START + 122)
-#define SPS_MTI_16				(GIC_SPI_START + 123)
-#define SPS_MTI_17				(GIC_SPI_START + 124)
-#define SPS_MTI_18				(GIC_SPI_START + 125)
-#define SPS_MTI_19				(GIC_SPI_START + 126)
-#define SPS_MTI_20				(GIC_SPI_START + 127)
-#define SPS_MTI_21				(GIC_SPI_START + 128)
-#define SPS_MTI_22				(GIC_SPI_START + 129)
-#define SPS_MTI_23				(GIC_SPI_START + 130)
-#define SPS_MTI_24				(GIC_SPI_START + 131)
-#define SPS_MTI_25				(GIC_SPI_START + 132)
-#define SPS_MTI_26				(GIC_SPI_START + 133)
-#define SPS_MTI_27				(GIC_SPI_START + 134)
-#define SPS_MTI_28				(GIC_SPI_START + 135)
-#define SPS_MTI_29				(GIC_SPI_START + 136)
-#define SPS_MTI_30				(GIC_SPI_START + 137)
-#define SPS_MTI_31				(GIC_SPI_START + 138)
-#define UXMC_EBI2_WR_ER_DONE_IRQ		(GIC_SPI_START + 139)
-#define UXMC_EBI2_OP_DONE_IRQ			(GIC_SPI_START + 140)
-#define USB2_IRQ				(GIC_SPI_START + 141)
-#define USB1_IRQ				(GIC_SPI_START + 142)
-#define TSSC_SSBI_IRQ				(GIC_SPI_START + 143)
-#define TSSC_SAMPLE_IRQ				(GIC_SPI_START + 144)
-#define TSSC_PENUP_IRQ				(GIC_SPI_START + 145)
-#define INT_UART1DM_IRQ				(GIC_SPI_START + 146)
-#define GSBI1_QUP_IRQ				(GIC_SPI_START + 147)
-#define INT_UART2DM_IRQ				(GIC_SPI_START + 148)
-#define GSBI2_QUP_IRQ				(GIC_SPI_START + 149)
-#define INT_UART3DM_IRQ				(GIC_SPI_START + 150)
-#define GSBI3_QUP_IRQ				(GIC_SPI_START + 151)
-#define INT_UART4DM_IRQ				(GIC_SPI_START + 152)
-#define GSBI4_QUP_IRQ				(GIC_SPI_START + 153)
-#define INT_UART5DM_IRQ				(GIC_SPI_START + 154)
-#define GSBI5_QUP_IRQ				(GIC_SPI_START + 155)
-#define INT_UART6DM_IRQ				(GIC_SPI_START + 156)
-#define GSBI6_QUP_IRQ				(GIC_SPI_START + 157)
-#define INT_UART7DM_IRQ				(GIC_SPI_START + 158)
-#define GSBI7_QUP_IRQ				(GIC_SPI_START + 159)
-#define INT_UART8DM_IRQ				(GIC_SPI_START + 160)
-#define GSBI8_QUP_IRQ				(GIC_SPI_START + 161)
-#define TSIF_TSPP_IRQ				(GIC_SPI_START + 162)
-#define TSIF_BAM_IRQ				(GIC_SPI_START + 163)
-#define TSIF2_IRQ				(GIC_SPI_START + 164)
-#define TSIF1_IRQ				(GIC_SPI_START + 165)
-#define INT_ADM1_MASTER				(GIC_SPI_START + 166)
-#define INT_ADM1_AARM				(GIC_SPI_START + 167)
-#define INT_ADM1_SD2				(GIC_SPI_START + 168)
-#define INT_ADM1_SD3				(GIC_SPI_START + 169)
-#define INT_ADM0_MASTER				(GIC_SPI_START + 170)
-#define INT_ADM0_AARM				(GIC_SPI_START + 171)
-#define INT_ADM0_SD2				(GIC_SPI_START + 172)
-#define INT_ADM0_SD3				(GIC_SPI_START + 173)
-#define CC_SCSS_WDT1CPU1BITEEXPIRED		(GIC_SPI_START + 174)
-#define CC_SCSS_WDT1CPU0BITEEXPIRED		(GIC_SPI_START + 175)
-#define CC_SCSS_WDT0CPU1BITEEXPIRED		(GIC_SPI_START + 176)
-#define CC_SCSS_WDT0CPU0BITEEXPIRED		(GIC_SPI_START + 177)
-#define TSENS_UPPER_LOWER_INT			(GIC_SPI_START + 178)
-#define SSBI2_2_SC_CPU1_SECURE_INT		(GIC_SPI_START + 179)
-#define SSBI2_2_SC_CPU1_NON_SECURE_INT		(GIC_SPI_START + 180)
-#define SSBI2_1_SC_CPU1_SECURE_INT		(GIC_SPI_START + 181)
-#define SSBI2_1_SC_CPU1_NON_SECURE_INT		(GIC_SPI_START + 182)
-#define XPU_SUMMARY_IRQ				(GIC_SPI_START + 183)
-#define BUS_EXCEPTION_SUMMARY_IRQ		(GIC_SPI_START + 184)
-#define HSDDRX_SMICH0_IRQ			(GIC_SPI_START + 185)
-#define HSDDRX_EBI1_IRQ				(GIC_SPI_START + 186)
-#define SDC5_BAM_IRQ				(GIC_SPI_START + 187)
-#define SDC5_IRQ_0				(GIC_SPI_START + 188)
-#define INT_UART9DM_IRQ				(GIC_SPI_START + 189)
-#define GSBI9_QUP_IRQ				(GIC_SPI_START + 190)
-#define INT_UART10DM_IRQ			(GIC_SPI_START + 191)
-#define GSBI10_QUP_IRQ				(GIC_SPI_START + 192)
-#define INT_UART11DM_IRQ			(GIC_SPI_START + 193)
-#define GSBI11_QUP_IRQ				(GIC_SPI_START + 194)
-#define INT_UART12DM_IRQ			(GIC_SPI_START + 195)
-#define GSBI12_QUP_IRQ				(GIC_SPI_START + 196)
-
-/*SPI 197 to 209 arent used in 8x60*/
-#define SMMU_GFX2D1_CB_SC_SECURE_IRQ            (GIC_SPI_START + 210)
-#define SMMU_GFX2D1_CB_SC_NON_SECURE_IRQ        (GIC_SPI_START + 211)
-
-/*SPI 212 to 216 arent used in 8x60*/
-#define SMPSS_SPARE_1				(GIC_SPI_START + 217)
-#define SMPSS_SPARE_2				(GIC_SPI_START + 218)
-#define SMPSS_SPARE_3				(GIC_SPI_START + 219)
-#define SMPSS_SPARE_4				(GIC_SPI_START + 220)
-#define SMPSS_SPARE_5				(GIC_SPI_START + 221)
-#define SMPSS_SPARE_6				(GIC_SPI_START + 222)
-#define SMPSS_SPARE_7				(GIC_SPI_START + 223)
-
-#define NR_GPIO_IRQS 173
-#define NR_MSM_IRQS 256
-#define NR_BOARD_IRQS 0
-
-#endif
diff --git a/arch/arm/mach-msm/include/mach/irqs.h b/arch/arm/mach-msm/include/mach/irqs.h
index 3cd78b165abb..164d355c96ea 100644
--- a/arch/arm/mach-msm/include/mach/irqs.h
+++ b/arch/arm/mach-msm/include/mach/irqs.h
@@ -24,11 +24,6 @@
 #elif defined(CONFIG_ARCH_QSD8X50)
 #include "irqs-8x50.h"
 #include "sirc.h"
-#elif defined(CONFIG_ARCH_MSM8X60)
-#include "irqs-8x60.h"
-#elif defined(CONFIG_ARCH_MSM8960)
-/* TODO: Make these not generic. */
-#include "irqs-8960.h"
 #elif defined(CONFIG_ARCH_MSM_ARM11)
 #include "irqs-7x00.h"
 #else
-- 
cgit 


From d0e190c37a85f1a8b7dccada8b2fb8fa64c36635 Mon Sep 17 00:00:00 2001
From: Rohit Vaswani <rvaswani@codeaurora.org>
Date: Mon, 9 Sep 2013 16:24:54 -0700
Subject: ARM: msm: Create a common board-dt and config ARCH_MSM_DT

Create a config ARCH_MSM_DT and common board-dt.c
to encapsulate the MSM DT based targets.

Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
---
 arch/arm/mach-msm/Kconfig         | 13 +++++++----
 arch/arm/mach-msm/Makefile        |  3 +--
 arch/arm/mach-msm/board-dt-8660.c | 48 ---------------------------------------
 arch/arm/mach-msm/board-dt-8960.c | 35 ----------------------------
 arch/arm/mach-msm/board-dt.c      | 32 ++++++++++++++++++++++++++
 5 files changed, 42 insertions(+), 89 deletions(-)
 delete mode 100644 arch/arm/mach-msm/board-dt-8660.c
 delete mode 100644 arch/arm/mach-msm/board-dt-8960.c
 create mode 100644 arch/arm/mach-msm/board-dt.c

diff --git a/arch/arm/mach-msm/Kconfig b/arch/arm/mach-msm/Kconfig
index 020240cc2ae7..2586c2865874 100644
--- a/arch/arm/mach-msm/Kconfig
+++ b/arch/arm/mach-msm/Kconfig
@@ -1,12 +1,12 @@
 if ARCH_MSM
 
 comment "Qualcomm MSM SoC Type"
-	depends on (ARCH_MSM8X60 || ARCH_MSM8960)
+	depends on ARCH_MSM_DT
 
 choice
 	prompt "Qualcomm MSM SoC Type"
 	default ARCH_MSM7X00A
-	depends on !(ARCH_MSM8X60 || ARCH_MSM8960)
+	depends on !ARCH_MSM_DT
 
 config ARCH_MSM7X00A
 	bool "MSM7x00A / MSM7x01A"
@@ -49,8 +49,6 @@ config ARCH_MSM8X60
 	select GPIO_MSM_V2
 	select HAVE_SMP
 	select MSM_SCM if SMP
-	select SPARSE_IRQ
-	select USE_OF
 
 config ARCH_MSM8960
 	bool "MSM8960"
@@ -59,6 +57,10 @@ config ARCH_MSM8960
 	select HAVE_SMP
 	select GPIO_MSM_V2
 	select MSM_SCM if SMP
+
+config ARCH_MSM_DT
+	def_bool y
+	depends on (ARCH_MSM8X60 || ARCH_MSM8960)
 	select SPARSE_IRQ
 	select USE_OF
 
@@ -70,6 +72,7 @@ config MSM_SOC_REV_A
 
 config  ARCH_MSM_ARM11
 	bool
+
 config  ARCH_MSM_SCORPION
 	bool
 
@@ -77,6 +80,7 @@ config  MSM_VIC
 	bool
 
 menu "Qualcomm MSM Board Type"
+	depends on !ARCH_MSM_DT
 
 config MACH_HALIBUT
 	depends on ARCH_MSM
@@ -124,6 +128,7 @@ config MSM_SMD
 
 config MSM_GPIOMUX
 	bool
+	depends on !ARCH_MSM_DT
 	help
 	  Support for MSM V1 TLMM GPIOMUX architecture.
 
diff --git a/arch/arm/mach-msm/Makefile b/arch/arm/mach-msm/Makefile
index d872634c2f85..7ed4c1b2bdd2 100644
--- a/arch/arm/mach-msm/Makefile
+++ b/arch/arm/mach-msm/Makefile
@@ -26,7 +26,6 @@ obj-$(CONFIG_MACH_TROUT) += board-trout.o board-trout-gpio.o board-trout-mmc.o b
 obj-$(CONFIG_MACH_HALIBUT) += board-halibut.o devices-msm7x00.o
 obj-$(CONFIG_ARCH_MSM7X30) += board-msm7x30.o devices-msm7x30.o
 obj-$(CONFIG_ARCH_QSD8X50) += board-qsd8x50.o devices-qsd8x50.o
-obj-$(CONFIG_ARCH_MSM8X60) += board-dt-8660.o
-obj-$(CONFIG_ARCH_MSM8960) += board-dt-8960.o
+obj-$(CONFIG_ARCH_MSM_DT) += board-dt.o
 obj-$(CONFIG_MSM_GPIOMUX) += gpiomux.o
 obj-$(CONFIG_ARCH_QSD8X50) += gpiomux-8x50.o
diff --git a/arch/arm/mach-msm/board-dt-8660.c b/arch/arm/mach-msm/board-dt-8660.c
deleted file mode 100644
index c2946892f5e3..000000000000
--- a/arch/arm/mach-msm/board-dt-8660.c
+++ /dev/null
@@ -1,48 +0,0 @@
-/* Copyright (c) 2010-2012, The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/init.h>
-#include <linux/of.h>
-#include <linux/of_platform.h>
-
-#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-
-#include "common.h"
-
-static void __init msm8x60_init_late(void)
-{
-	smd_debugfs_init();
-}
-
-static struct of_dev_auxdata msm_auxdata_lookup[] __initdata = {
-	{}
-};
-
-static void __init msm8x60_dt_init(void)
-{
-	of_platform_populate(NULL, of_default_bus_match_table,
-			msm_auxdata_lookup, NULL);
-}
-
-static const char *msm8x60_fluid_match[] __initdata = {
-	"qcom,msm8660-fluid",
-	"qcom,msm8660-surf",
-	NULL
-};
-
-DT_MACHINE_START(MSM_DT, "Qualcomm MSM (Flattened Device Tree)")
-	.smp = smp_ops(msm_smp_ops),
-	.init_machine = msm8x60_dt_init,
-	.init_late = msm8x60_init_late,
-	.dt_compat = msm8x60_fluid_match,
-MACHINE_END
diff --git a/arch/arm/mach-msm/board-dt-8960.c b/arch/arm/mach-msm/board-dt-8960.c
deleted file mode 100644
index d4ca52c45111..000000000000
--- a/arch/arm/mach-msm/board-dt-8960.c
+++ /dev/null
@@ -1,35 +0,0 @@
-/* Copyright (c) 2012, The Linux Foundation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 and
- * only version 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <linux/init.h>
-#include <linux/of_platform.h>
-
-#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-
-#include "common.h"
-
-static void __init msm_dt_init(void)
-{
-	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
-}
-
-static const char * const msm8960_dt_match[] __initconst = {
-	"qcom,msm8960-cdp",
-	NULL
-};
-
-DT_MACHINE_START(MSM8960_DT, "Qualcomm MSM (Flattened Device Tree)")
-	.smp = smp_ops(msm_smp_ops),
-	.init_machine = msm_dt_init,
-	.dt_compat = msm8960_dt_match,
-MACHINE_END
diff --git a/arch/arm/mach-msm/board-dt.c b/arch/arm/mach-msm/board-dt.c
new file mode 100644
index 000000000000..16e6183ac9f1
--- /dev/null
+++ b/arch/arm/mach-msm/board-dt.c
@@ -0,0 +1,32 @@
+/* Copyright (c) 2010-2012,2013 The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+
+#include "common.h"
+
+static const char * const msm_dt_match[] __initconst = {
+	"qcom,msm8660-fluid",
+	"qcom,msm8660-surf",
+	"qcom,msm8960-cdp",
+	NULL
+};
+
+DT_MACHINE_START(MSM_DT, "Qualcomm MSM (Flattened Device Tree)")
+	.smp = smp_ops(msm_smp_ops),
+	.dt_compat = msm_dt_match,
+MACHINE_END
-- 
cgit 


From 81cf1e061d001fab44dbaa85fc4fbfb6da6713a1 Mon Sep 17 00:00:00 2001
From: Kumar Gala <galak@codeaurora.org>
Date: Tue, 17 Sep 2013 10:51:43 -0500
Subject: ARM: msm: Rename msm devicetrees to have standard 'qcom' prefix

Use a standard 'qcom' prefix to denotate device trees meant for Qualcomm
based processors.

Signed-off-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: David Brown <davidb@codeaurora.org>
---
 arch/arm/boot/dts/Makefile              |  4 +--
 arch/arm/boot/dts/msm8660-surf.dts      | 52 ---------------------------------
 arch/arm/boot/dts/msm8960-cdp.dts       | 52 ---------------------------------
 arch/arm/boot/dts/qcom-msm8660-surf.dts | 52 +++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/qcom-msm8960-cdp.dts  | 52 +++++++++++++++++++++++++++++++++
 5 files changed, 106 insertions(+), 106 deletions(-)
 delete mode 100644 arch/arm/boot/dts/msm8660-surf.dts
 delete mode 100644 arch/arm/boot/dts/msm8960-cdp.dts
 create mode 100644 arch/arm/boot/dts/qcom-msm8660-surf.dts
 create mode 100644 arch/arm/boot/dts/qcom-msm8960-cdp.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index e95af3f5433b..3b07800536f7 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -101,8 +101,8 @@ dtb-$(CONFIG_ARCH_KIRKWOOD) += kirkwood-cloudbox.dtb \
 	kirkwood-ts219-6282.dtb \
 	kirkwood-openblocks_a6.dtb
 dtb-$(CONFIG_ARCH_MARCO) += marco-evb.dtb
-dtb-$(CONFIG_ARCH_MSM) += msm8660-surf.dtb \
-	msm8960-cdp.dtb
+dtb-$(CONFIG_ARCH_MSM) += qcom-msm8660-surf.dtb \
+	qcom-msm8960-cdp.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += armada-370-db.dtb \
 	armada-370-mirabox.dtb \
 	armada-370-netgear-rn102.dtb \
diff --git a/arch/arm/boot/dts/msm8660-surf.dts b/arch/arm/boot/dts/msm8660-surf.dts
deleted file mode 100644
index 386d42870215..000000000000
--- a/arch/arm/boot/dts/msm8660-surf.dts
+++ /dev/null
@@ -1,52 +0,0 @@
-/dts-v1/;
-
-/include/ "skeleton.dtsi"
-
-/ {
-	model = "Qualcomm MSM8660 SURF";
-	compatible = "qcom,msm8660-surf", "qcom,msm8660";
-	interrupt-parent = <&intc>;
-
-	intc: interrupt-controller@2080000 {
-		compatible = "qcom,msm-8660-qgic";
-		interrupt-controller;
-		#interrupt-cells = <3>;
-		reg = < 0x02080000 0x1000 >,
-		      < 0x02081000 0x1000 >;
-	};
-
-	timer@2000000 {
-		compatible = "qcom,scss-timer", "qcom,msm-timer";
-		interrupts = <1 0 0x301>,
-			     <1 1 0x301>,
-			     <1 2 0x301>;
-		reg = <0x02000000 0x100>;
-		clock-frequency = <27000000>,
-				  <32768>;
-		cpu-offset = <0x40000>;
-	};
-
-	msmgpio: gpio@800000 {
-		compatible = "qcom,msm-gpio";
-		reg = <0x00800000 0x1000>;
-		gpio-controller;
-		#gpio-cells = <2>;
-		ngpio = <173>;
-		interrupts = <0 32 0x4>;
-		interrupt-controller;
-		#interrupt-cells = <2>;
-	};
-
-	serial@19c40000 {
-		compatible = "qcom,msm-uartdm-v1.3", "qcom,msm-uartdm";
-		reg = <0x19c40000 0x1000>,
-		      <0x19c00000 0x1000>;
-		interrupts = <0 195 0x0>;
-	};
-
-	qcom,ssbi@500000 {
-		compatible = "qcom,ssbi";
-		reg = <0x500000 0x1000>;
-		qcom,controller-type = "pmic-arbiter";
-	};
-};
diff --git a/arch/arm/boot/dts/msm8960-cdp.dts b/arch/arm/boot/dts/msm8960-cdp.dts
deleted file mode 100644
index 93e9f7e0b7ad..000000000000
--- a/arch/arm/boot/dts/msm8960-cdp.dts
+++ /dev/null
@@ -1,52 +0,0 @@
-/dts-v1/;
-
-/include/ "skeleton.dtsi"
-
-/ {
-	model = "Qualcomm MSM8960 CDP";
-	compatible = "qcom,msm8960-cdp", "qcom,msm8960";
-	interrupt-parent = <&intc>;
-
-	intc: interrupt-controller@2000000 {
-		compatible = "qcom,msm-qgic2";
-		interrupt-controller;
-		#interrupt-cells = <3>;
-		reg = < 0x02000000 0x1000 >,
-		      < 0x02002000 0x1000 >;
-	};
-
-	timer@200a000 {
-		compatible = "qcom,kpss-timer", "qcom,msm-timer";
-		interrupts = <1 1 0x301>,
-			     <1 2 0x301>,
-			     <1 3 0x301>;
-		reg = <0x0200a000 0x100>;
-		clock-frequency = <27000000>,
-				  <32768>;
-		cpu-offset = <0x80000>;
-	};
-
-	msmgpio: gpio@800000 {
-		compatible = "qcom,msm-gpio";
-		gpio-controller;
-		#gpio-cells = <2>;
-		ngpio = <150>;
-		interrupts = <0 32 0x4>;
-		interrupt-controller;
-		#interrupt-cells = <2>;
-		reg = <0x800000 0x4000>;
-	};
-
-	serial@16440000 {
-		compatible = "qcom,msm-uartdm-v1.3", "qcom,msm-uartdm";
-		reg = <0x16440000 0x1000>,
-		      <0x16400000 0x1000>;
-		interrupts = <0 154 0x0>;
-	};
-
-	qcom,ssbi@500000 {
-		compatible = "qcom,ssbi";
-		reg = <0x500000 0x1000>;
-		qcom,controller-type = "pmic-arbiter";
-	};
-};
diff --git a/arch/arm/boot/dts/qcom-msm8660-surf.dts b/arch/arm/boot/dts/qcom-msm8660-surf.dts
new file mode 100644
index 000000000000..386d42870215
--- /dev/null
+++ b/arch/arm/boot/dts/qcom-msm8660-surf.dts
@@ -0,0 +1,52 @@
+/dts-v1/;
+
+/include/ "skeleton.dtsi"
+
+/ {
+	model = "Qualcomm MSM8660 SURF";
+	compatible = "qcom,msm8660-surf", "qcom,msm8660";
+	interrupt-parent = <&intc>;
+
+	intc: interrupt-controller@2080000 {
+		compatible = "qcom,msm-8660-qgic";
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		reg = < 0x02080000 0x1000 >,
+		      < 0x02081000 0x1000 >;
+	};
+
+	timer@2000000 {
+		compatible = "qcom,scss-timer", "qcom,msm-timer";
+		interrupts = <1 0 0x301>,
+			     <1 1 0x301>,
+			     <1 2 0x301>;
+		reg = <0x02000000 0x100>;
+		clock-frequency = <27000000>,
+				  <32768>;
+		cpu-offset = <0x40000>;
+	};
+
+	msmgpio: gpio@800000 {
+		compatible = "qcom,msm-gpio";
+		reg = <0x00800000 0x1000>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		ngpio = <173>;
+		interrupts = <0 32 0x4>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+	};
+
+	serial@19c40000 {
+		compatible = "qcom,msm-uartdm-v1.3", "qcom,msm-uartdm";
+		reg = <0x19c40000 0x1000>,
+		      <0x19c00000 0x1000>;
+		interrupts = <0 195 0x0>;
+	};
+
+	qcom,ssbi@500000 {
+		compatible = "qcom,ssbi";
+		reg = <0x500000 0x1000>;
+		qcom,controller-type = "pmic-arbiter";
+	};
+};
diff --git a/arch/arm/boot/dts/qcom-msm8960-cdp.dts b/arch/arm/boot/dts/qcom-msm8960-cdp.dts
new file mode 100644
index 000000000000..93e9f7e0b7ad
--- /dev/null
+++ b/arch/arm/boot/dts/qcom-msm8960-cdp.dts
@@ -0,0 +1,52 @@
+/dts-v1/;
+
+/include/ "skeleton.dtsi"
+
+/ {
+	model = "Qualcomm MSM8960 CDP";
+	compatible = "qcom,msm8960-cdp", "qcom,msm8960";
+	interrupt-parent = <&intc>;
+
+	intc: interrupt-controller@2000000 {
+		compatible = "qcom,msm-qgic2";
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		reg = < 0x02000000 0x1000 >,
+		      < 0x02002000 0x1000 >;
+	};
+
+	timer@200a000 {
+		compatible = "qcom,kpss-timer", "qcom,msm-timer";
+		interrupts = <1 1 0x301>,
+			     <1 2 0x301>,
+			     <1 3 0x301>;
+		reg = <0x0200a000 0x100>;
+		clock-frequency = <27000000>,
+				  <32768>;
+		cpu-offset = <0x80000>;
+	};
+
+	msmgpio: gpio@800000 {
+		compatible = "qcom,msm-gpio";
+		gpio-controller;
+		#gpio-cells = <2>;
+		ngpio = <150>;
+		interrupts = <0 32 0x4>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		reg = <0x800000 0x4000>;
+	};
+
+	serial@16440000 {
+		compatible = "qcom,msm-uartdm-v1.3", "qcom,msm-uartdm";
+		reg = <0x16440000 0x1000>,
+		      <0x16400000 0x1000>;
+		interrupts = <0 154 0x0>;
+	};
+
+	qcom,ssbi@500000 {
+		compatible = "qcom,ssbi";
+		reg = <0x500000 0x1000>;
+		qcom,controller-type = "pmic-arbiter";
+	};
+};
-- 
cgit 


From a006482b67a96c16dfefc558e36863c51e1829bf Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Mon, 23 Sep 2013 15:25:26 -0600
Subject: PCI: Drop "setting latency timer" messages

This message isn't useful any more, so drop it.

Reference: https://bugzilla.kernel.org/show_bug.cgi?id=60636
Reported-by: Oleksil Shevchuk <alxchk@gmail.com>
Reference: http://lkml.kernel.org/r/CALCETrWkr53ZjqdN3t7rTTfr=+ZKZXJoYsuBcwPf0kN_33GfAw@mail.gmail.com
Reported-by: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index e8ccf6c0f08a..ad7fc72a40a0 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -2854,7 +2854,7 @@ void __weak pcibios_set_master(struct pci_dev *dev)
 		lat = pcibios_max_latency;
 	else
 		return;
-	dev_printk(KERN_DEBUG, &dev->dev, "setting latency timer to %d\n", lat);
+
 	pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
 }
 
-- 
cgit 


From a895c28a1f5d761679cb229b19fb08ca2067211e Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 3 Sep 2013 13:31:05 -0700
Subject: PCI: Fix comment typo, remove unnecessary !! in pci_is_pcie()

Use normal kernel-doc "Returns:" instead of "retrun"
Assignment to bool is always 1 or 0 so the !! isn't necessary.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 include/linux/pci.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/pci.h b/include/linux/pci.h
index da172f956ad6..ee0f3b60af22 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1749,11 +1749,11 @@ static inline int pci_pcie_cap(struct pci_dev *dev)
  * pci_is_pcie - check if the PCI device is PCI Express capable
  * @dev: PCI device
  *
- * Retrun true if the PCI device is PCI Express capable, false otherwise.
+ * Returns: true if the PCI device is PCI Express capable, false otherwise.
  */
 static inline bool pci_is_pcie(struct pci_dev *dev)
 {
-	return !!pci_pcie_cap(dev);
+	return pci_pcie_cap(dev);
 }
 
 /**
-- 
cgit 


From 62a276f81fca41778abd8cb6d720a36302a89473 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Fri, 6 Sep 2013 11:26:24 -0600
Subject: [SCSI] qla2xxx: Use standard PCIe Capability Link register field
 names

Use the standard #defines for PCIe Link Capability register fields
rather than bare numbers.  This also uses the new PCI Express Capability
accessor rather than reading the capability directly.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Acked-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
---
 drivers/scsi/qla2xxx/qla_os.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 9f01bbbf3a26..bcd57f699ebb 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -494,18 +494,14 @@ qla24xx_pci_info_str(struct scsi_qla_host *vha, char *str)
 	static char *pci_bus_modes[] = { "33", "66", "100", "133", };
 	struct qla_hw_data *ha = vha->hw;
 	uint32_t pci_bus;
-	int pcie_reg;
 
-	pcie_reg = pci_pcie_cap(ha->pdev);
-	if (pcie_reg) {
+	if (pci_is_pcie(ha->pdev)) {
 		char lwstr[6];
-		uint16_t pcie_lstat, lspeed, lwidth;
+		uint32_t lstat, lspeed, lwidth;
 
-		pcie_reg += PCI_EXP_LNKCAP;
-		pci_read_config_word(ha->pdev, pcie_reg, &pcie_lstat);
-		lspeed = pcie_lstat & (BIT_0 | BIT_1 | BIT_2 | BIT_3);
-		lwidth = (pcie_lstat &
-		    (BIT_4 | BIT_5 | BIT_6 | BIT_7 | BIT_8 | BIT_9)) >> 4;
+		pcie_capability_read_dword(ha->pdev, PCI_EXP_LNKCAP, &lstat);
+		lspeed = lstat & PCI_EXP_LNKCAP_SLS;
+		lwidth = (lstat & PCI_EXP_LNKCAP_MLW) >> 4;
 
 		strcpy(str, "PCIe (");
 		switch (lspeed) {
-- 
cgit 


From a37bee7956ab34785815aafbe9f920c2cfd02b97 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Mon, 2 Sep 2013 14:34:40 +0800
Subject: PCI: Update pci_find_slot() description in pci.txt

pci_find_slot() has been removed from the kernel.  Document its
closest replacement, pci_get_domain_bus_and_slot(), instead.

[bhelgaas: fix indentation, keep mention in "obsolete" section]
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 Documentation/PCI/pci.txt | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/Documentation/PCI/pci.txt b/Documentation/PCI/pci.txt
index bccf602a87f5..6f458564d625 100644
--- a/Documentation/PCI/pci.txt
+++ b/Documentation/PCI/pci.txt
@@ -525,8 +525,9 @@ corresponding register block for you.
 6. Other interesting functions
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-pci_find_slot()			Find pci_dev corresponding to given bus and
-				slot numbers.
+pci_get_domain_bus_and_slot()	Find pci_dev corresponding to given domain,
+				bus and slot and number. If the device is
+				found, its reference count is increased.
 pci_set_power_state()		Set PCI Power Management state (0=D0 ... 3=D3)
 pci_find_capability()		Find specified capability in device's capability
 				list.
@@ -582,7 +583,8 @@ having sane locking.
 
 pci_find_device()	Superseded by pci_get_device()
 pci_find_subsys()	Superseded by pci_get_subsys()
-pci_find_slot()		Superseded by pci_get_slot()
+pci_find_slot()		Superseded by pci_get_domain_bus_and_slot()
+pci_get_slot()		Superseded by pci_get_domain_bus_and_slot()
 
 
 The alternative is the traditional PCI device driver that walks PCI
-- 
cgit 


From 115e3bc5e23e7ec3c85a2014bfa96c0ddd036083 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Tue, 3 Sep 2013 10:02:09 +0800
Subject: PCI: Remove unused "is_pcie" from pci_dev structure

No one uses "is_pcie" now; remove this obsolete member.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/probe.c | 1 -
 include/linux/pci.h | 2 --
 2 files changed, 3 deletions(-)

diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 7ef0f868b3e0..2372babe2fc5 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -984,7 +984,6 @@ void set_pcie_port_type(struct pci_dev *pdev)
 	pos = pci_find_capability(pdev, PCI_CAP_ID_EXP);
 	if (!pos)
 		return;
-	pdev->is_pcie = 1;
 	pdev->pcie_cap = pos;
 	pci_read_config_word(pdev, pos + PCI_EXP_FLAGS, &reg16);
 	pdev->pcie_flags_reg = reg16;
diff --git a/include/linux/pci.h b/include/linux/pci.h
index ee0f3b60af22..197e2d21f2cb 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -330,8 +330,6 @@ struct pci_dev {
 	unsigned int	msix_enabled:1;
 	unsigned int	ari_enabled:1;	/* ARI forwarding */
 	unsigned int	is_managed:1;
-	unsigned int	is_pcie:1;	/* Obsolete. Will be removed.
-					   Use pci_is_pcie() instead */
 	unsigned int    needs_freset:1; /* Dev requires fundamental reset */
 	unsigned int	state_saved:1;
 	unsigned int	is_physfn:1;
-- 
cgit 


From 2ba29e270e977b213a7d58ae1152c23a1c3074a3 Mon Sep 17 00:00:00 2001
From: Wei Yang <weiyang@linux.vnet.ibm.com>
Date: Fri, 6 Sep 2013 09:45:56 +0800
Subject: PCI: Use pci_is_root_bus() to check for root bus

In __pci_bus_size_bridges() we check whether a bus is a root bus by testing
bus->self.  As indicated by commit 79af72d7 ("PCI: pci_is_root_bus
helper"), bus->self == NULL is not a proper way to check for a root bus.
One issue is that "virtual" buses added for SR-IOV (via virtfn_add_bus())
have bus->self == NULL but are not root buses.

This patch changes it to pci_is_root_bus() to check whether it is a root
bus.

[bhelgaas: changelog]
Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/setup-bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index bc26d7990cc3..8df686c48bd1 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -1136,7 +1136,7 @@ void __ref __pci_bus_size_bridges(struct pci_bus *bus,
 	}
 
 	/* The root bus? */
-	if (!bus->self)
+	if (pci_is_root_bus(bus))
 		return;
 
 	switch (bus->self->class >> 8) {
-- 
cgit 


From 77a0dfcd8a4d9a93a21c8be56eaeb65cd69b351d Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Tue, 24 Sep 2013 15:14:57 -0600
Subject: PCI: Document reason for using pci_is_root_bus()

Some code assumes "bus->self == NULL" means the bus is a root bus.  This
adds a comment explaining why this is incorrect ("virtual" buses added for
SR-IOV have "bus->self == NULL" but are not root buses).

No functional change.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 include/linux/pci.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/linux/pci.h b/include/linux/pci.h
index 197e2d21f2cb..d3a888ae4b2e 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -470,6 +470,10 @@ struct pci_bus {
 /*
  * Returns true if the pci bus is root (behind host-pci bridge),
  * false otherwise
+ *
+ * Some code assumes that "bus->self == NULL" means that bus is a root bus.
+ * This is incorrect because "virtual" buses added for SR-IOV (via
+ * virtfn_add_bus()) have "bus->self == NULL" but are not root buses.
  */
 static inline bool pci_is_root_bus(struct pci_bus *pbus)
 {
-- 
cgit 


From 3ad94b0d795c50836160781e63ee6bb752766aaf Mon Sep 17 00:00:00 2001
From: Wei Yang <weiyang@linux.vnet.ibm.com>
Date: Fri, 6 Sep 2013 09:45:58 +0800
Subject: PCI: Pass type, width, and prefetchability for window alignment

When calculating window_alignment(), type information like IORESOURCE_MEM
and IORESOURCE_PREFETCH may not be enough.  For example, on powernv, we
need to know whether the window is 64-bit or not.

This patch passes the full resource type (res->flags) for window alignment.

[bhelgaas: changelog]
Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Gavin Shan <shangw@linux.vnet.ibm.com>
---
 drivers/pci/setup-bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 8df686c48bd1..4ce83b26ae9e 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -982,7 +982,7 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask,
 	}
 
 	min_align = calculate_mem_align(aligns, max_order);
-	min_align = max(min_align, window_alignment(bus, b_res->flags & mask));
+	min_align = max(min_align, window_alignment(bus, b_res->flags));
 	size0 = calculate_memsize(size, min_size, 0, resource_size(b_res), min_align);
 	if (children_add_size > add_size)
 		add_size = children_add_size;
-- 
cgit 


From b8cac70afe983f0c48a0296bbb7a6177e99fbbb9 Mon Sep 17 00:00:00 2001
From: Todd E Brandt <todd.e.brandt@linux.intel.com>
Date: Tue, 10 Sep 2013 16:10:43 -0700
Subject: PCI: Remove Intel Haswell D3 delays

The latest Intel Haswell chipsets have a hardware optimization which
allows on-chip PCI devices to ignore the 10ms delay before entering
or exiting D3 suspend.

This patch implements the optimization as a PCI quirk, since we want
tight control over which devices use it. This way we can test each device
individually to be sure there are no issues before we enable the quirk.
The first set of devices are from the Haswell platform, which includes
every PCI device that is on the northbridge and southbridge.

This patch reduces the Haswell suspend time from 93 ms to 47 ms and resume
time from 160 ms to 64 ms.

Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/pci/quirks.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index f6c31fabf3af..91490453c229 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -2954,6 +2954,29 @@ static void disable_igfx_irq(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0102, disable_igfx_irq);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x010a, disable_igfx_irq);
 
+/*
+ * PCI devices which are on Intel chips can skip the 10ms delay
+ * before entering D3 mode.
+ */
+static void quirk_remove_d3_delay(struct pci_dev *dev)
+{
+	dev->d3_delay = 0;
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c00, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0412, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0c0c, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c31, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3a, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c3d, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c2d, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c20, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c18, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c1c, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c26, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c4e, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c02, quirk_remove_d3_delay);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x8c22, quirk_remove_d3_delay);
+
 /*
  * Some devices may pass our check in pci_intx_mask_supported if
  * PCI_COMMAND_INTX_DISABLE works though they actually do not properly
-- 
cgit 


From 4af8225567065f1825baed259822b0d26c343fad Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 20:29:24 +0900
Subject: MAINTAINERS: Add Jingoo Han as Samsung Exynos PCIe driver maintainer

Add myself as maintainer for Samsung Exynos PCIe driver.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 MAINTAINERS | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index e61c2e83fc2b..bc6d82162ebe 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6346,6 +6346,12 @@ S:	Supported
 F:	Documentation/devicetree/bindings/pci/nvidia,tegra20-pcie.txt
 F:	drivers/pci/host/pci-tegra.c
 
+PCI DRIVER FOR SAMSUNG EXYNOS
+M:	Jingoo Han <jg1.han@samsung.com>
+L:	linux-pci@vger.kernel.org
+S:	Maintained
+F:	drivers/pci/host/pci-exynos.c
+
 PCMCIA SUBSYSTEM
 P:	Linux PCMCIA Team
 L:	linux-pcmcia@lists.infradead.org
-- 
cgit 


From f342d940ee0e3a2b5197fd4fbade1cb6bbc960b7 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 6 Sep 2013 15:54:59 +0900
Subject: PCI: exynos: Add support for MSI

This patch adds support for Message Signaled Interrupt in the
Exynos PCIe driver using Synopsys designware PCIe core IP.

Signed-off-by: Siva Reddy Kallam <siva.kallam@samsung.com>
Signed-off-by: Srikanth T Shivanand <ts.srikanth@samsung.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Pratyush Anand <pratyush.anand@st.com>
Cc: Mohit KUMAR <Mohit.KUMAR@st.com>
---
 drivers/pci/host/pci-exynos.c      |  44 +++++++
 drivers/pci/host/pcie-designware.c | 240 +++++++++++++++++++++++++++++++++++++
 drivers/pci/host/pcie-designware.h |  14 +++
 3 files changed, 298 insertions(+)

diff --git a/drivers/pci/host/pci-exynos.c b/drivers/pci/host/pci-exynos.c
index 94e096bb2d0a..f062acaf052a 100644
--- a/drivers/pci/host/pci-exynos.c
+++ b/drivers/pci/host/pci-exynos.c
@@ -48,6 +48,7 @@ struct exynos_pcie {
 #define PCIE_IRQ_SPECIAL		0x008
 #define PCIE_IRQ_EN_PULSE		0x00c
 #define PCIE_IRQ_EN_LEVEL		0x010
+#define IRQ_MSI_ENABLE			(0x1 << 2)
 #define PCIE_IRQ_EN_SPECIAL		0x014
 #define PCIE_PWR_RESET			0x018
 #define PCIE_CORE_RESET			0x01c
@@ -342,9 +343,36 @@ static irqreturn_t exynos_pcie_irq_handler(int irq, void *arg)
 	return IRQ_HANDLED;
 }
 
+static irqreturn_t exynos_pcie_msi_irq_handler(int irq, void *arg)
+{
+	struct pcie_port *pp = arg;
+
+	dw_handle_msi_irq(pp);
+
+	return IRQ_HANDLED;
+}
+
+static void exynos_pcie_msi_init(struct pcie_port *pp)
+{
+	u32 val;
+	struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
+
+	dw_pcie_msi_init(pp);
+
+	/* enable MSI interrupt */
+	val = exynos_elb_readl(exynos_pcie, PCIE_IRQ_EN_LEVEL);
+	val |= IRQ_MSI_ENABLE;
+	exynos_elb_writel(exynos_pcie, val, PCIE_IRQ_EN_LEVEL);
+	return;
+}
+
 static void exynos_pcie_enable_interrupts(struct pcie_port *pp)
 {
 	exynos_pcie_enable_irq_pulse(pp);
+
+	if (IS_ENABLED(CONFIG_PCI_MSI))
+		exynos_pcie_msi_init(pp);
+
 	return;
 }
 
@@ -430,6 +458,22 @@ static int add_pcie_port(struct pcie_port *pp, struct platform_device *pdev)
 		return ret;
 	}
 
+	if (IS_ENABLED(CONFIG_PCI_MSI)) {
+		pp->msi_irq = platform_get_irq(pdev, 0);
+		if (!pp->msi_irq) {
+			dev_err(&pdev->dev, "failed to get msi irq\n");
+			return -ENODEV;
+		}
+
+		ret = devm_request_irq(&pdev->dev, pp->msi_irq,
+					exynos_pcie_msi_irq_handler,
+					IRQF_SHARED, "exynos-pcie", pp);
+		if (ret) {
+			dev_err(&pdev->dev, "failed to request msi irq\n");
+			return ret;
+		}
+	}
+
 	pp->root_bus_nr = -1;
 	pp->ops = &exynos_pcie_host_ops;
 
diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index c10e9ac9bbbc..896301788e9d 100644
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c
@@ -11,8 +11,11 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/msi.h>
 #include <linux/of_address.h>
 #include <linux/pci.h>
 #include <linux/pci_regs.h>
@@ -142,6 +145,204 @@ int dw_pcie_wr_own_conf(struct pcie_port *pp, int where, int size,
 	return ret;
 }
 
+static struct irq_chip dw_msi_irq_chip = {
+	.name = "PCI-MSI",
+	.irq_enable = unmask_msi_irq,
+	.irq_disable = mask_msi_irq,
+	.irq_mask = mask_msi_irq,
+	.irq_unmask = unmask_msi_irq,
+};
+
+/* MSI int handler */
+void dw_handle_msi_irq(struct pcie_port *pp)
+{
+	unsigned long val;
+	int i, pos;
+
+	for (i = 0; i < MAX_MSI_CTRLS; i++) {
+		dw_pcie_rd_own_conf(pp, PCIE_MSI_INTR0_STATUS + i * 12, 4,
+				(u32 *)&val);
+		if (val) {
+			pos = 0;
+			while ((pos = find_next_bit(&val, 32, pos)) != 32) {
+				generic_handle_irq(pp->msi_irq_start
+					+ (i * 32) + pos);
+				pos++;
+			}
+		}
+		dw_pcie_wr_own_conf(pp, PCIE_MSI_INTR0_STATUS + i * 12, 4, val);
+	}
+}
+
+void dw_pcie_msi_init(struct pcie_port *pp)
+{
+	pp->msi_data = __get_free_pages(GFP_KERNEL, 0);
+
+	/* program the msi_data */
+	dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_LO, 4,
+			virt_to_phys((void *)pp->msi_data));
+	dw_pcie_wr_own_conf(pp, PCIE_MSI_ADDR_HI, 4, 0);
+}
+
+static int find_valid_pos0(struct pcie_port *pp, int msgvec, int pos, int *pos0)
+{
+	int flag = 1;
+
+	do {
+		pos = find_next_zero_bit(pp->msi_irq_in_use,
+				MAX_MSI_IRQS, pos);
+		/*if you have reached to the end then get out from here.*/
+		if (pos == MAX_MSI_IRQS)
+			return -ENOSPC;
+		/*
+		 * Check if this position is at correct offset.nvec is always a
+		 * power of two. pos0 must be nvec bit alligned.
+		 */
+		if (pos % msgvec)
+			pos += msgvec - (pos % msgvec);
+		else
+			flag = 0;
+	} while (flag);
+
+	*pos0 = pos;
+	return 0;
+}
+
+static int assign_irq(int no_irqs, struct msi_desc *desc, int *pos)
+{
+	int res, bit, irq, pos0, pos1, i;
+	u32 val;
+	struct pcie_port *pp = sys_to_pcie(desc->dev->bus->sysdata);
+
+	if (!pp) {
+		BUG();
+		return -EINVAL;
+	}
+
+	pos0 = find_first_zero_bit(pp->msi_irq_in_use,
+			MAX_MSI_IRQS);
+	if (pos0 % no_irqs) {
+		if (find_valid_pos0(pp, no_irqs, pos0, &pos0))
+			goto no_valid_irq;
+	}
+	if (no_irqs > 1) {
+		pos1 = find_next_bit(pp->msi_irq_in_use,
+				MAX_MSI_IRQS, pos0);
+		/* there must be nvec number of consecutive free bits */
+		while ((pos1 - pos0) < no_irqs) {
+			if (find_valid_pos0(pp, no_irqs, pos1, &pos0))
+				goto no_valid_irq;
+			pos1 = find_next_bit(pp->msi_irq_in_use,
+					MAX_MSI_IRQS, pos0);
+		}
+	}
+
+	irq = (pp->msi_irq_start + pos0);
+
+	if ((irq + no_irqs) > (pp->msi_irq_start + MAX_MSI_IRQS-1))
+		goto no_valid_irq;
+
+	i = 0;
+	while (i < no_irqs) {
+		set_bit(pos0 + i, pp->msi_irq_in_use);
+		irq_alloc_descs((irq + i), (irq + i), 1, 0);
+		irq_set_msi_desc(irq + i, desc);
+		/*Enable corresponding interrupt in MSI interrupt controller */
+		res = ((pos0 + i) / 32) * 12;
+		bit = (pos0 + i) % 32;
+		dw_pcie_rd_own_conf(pp, PCIE_MSI_INTR0_ENABLE + res, 4, &val);
+		val |= 1 << bit;
+		dw_pcie_wr_own_conf(pp, PCIE_MSI_INTR0_ENABLE + res, 4, val);
+		i++;
+	}
+
+	*pos = pos0;
+	return irq;
+
+no_valid_irq:
+	*pos = pos0;
+	return -ENOSPC;
+}
+
+static void clear_irq(unsigned int irq)
+{
+	int res, bit, val, pos;
+	struct irq_desc *desc;
+	struct msi_desc *msi;
+	struct pcie_port *pp;
+
+	/* get the port structure */
+	desc = irq_to_desc(irq);
+	msi = irq_desc_get_msi_desc(desc);
+	pp = sys_to_pcie(msi->dev->bus->sysdata);
+	if (!pp) {
+		BUG();
+		return;
+	}
+
+	pos = irq - pp->msi_irq_start;
+
+	irq_free_desc(irq);
+
+	clear_bit(pos, pp->msi_irq_in_use);
+
+	/* Disable corresponding interrupt on MSI interrupt controller */
+	res = (pos / 32) * 12;
+	bit = pos % 32;
+	dw_pcie_rd_own_conf(pp, PCIE_MSI_INTR0_ENABLE + res, 4, &val);
+	val &= ~(1 << bit);
+	dw_pcie_wr_own_conf(pp, PCIE_MSI_INTR0_ENABLE + res, 4, val);
+}
+
+static int dw_msi_setup_irq(struct msi_chip *chip, struct pci_dev *pdev,
+			struct msi_desc *desc)
+{
+	int irq, pos, msgvec;
+	u16 msg_ctr;
+	struct msi_msg msg;
+	struct pcie_port *pp = sys_to_pcie(pdev->bus->sysdata);
+
+	if (!pp) {
+		BUG();
+		return -EINVAL;
+	}
+
+	pci_read_config_word(pdev, desc->msi_attrib.pos+PCI_MSI_FLAGS,
+				&msg_ctr);
+	msgvec = (msg_ctr&PCI_MSI_FLAGS_QSIZE) >> 4;
+	if (msgvec == 0)
+		msgvec = (msg_ctr & PCI_MSI_FLAGS_QMASK) >> 1;
+	if (msgvec > 5)
+		msgvec = 0;
+
+	irq = assign_irq((1 << msgvec), desc, &pos);
+	if (irq < 0)
+		return irq;
+
+	msg_ctr &= ~PCI_MSI_FLAGS_QSIZE;
+	msg_ctr |= msgvec << 4;
+	pci_write_config_word(pdev, desc->msi_attrib.pos + PCI_MSI_FLAGS,
+				msg_ctr);
+	desc->msi_attrib.multiple = msgvec;
+
+	msg.address_lo = virt_to_phys((void *)pp->msi_data);
+	msg.address_hi = 0x0;
+	msg.data = pos;
+	write_msi_msg(irq, &msg);
+
+	return 0;
+}
+
+static void dw_msi_teardown_irq(struct msi_chip *chip, unsigned int irq)
+{
+	clear_irq(irq);
+}
+
+static struct msi_chip dw_pcie_msi_chip = {
+	.setup_irq = dw_msi_setup_irq,
+	.teardown_irq = dw_msi_teardown_irq,
+};
+
 int dw_pcie_link_up(struct pcie_port *pp)
 {
 	if (pp->ops->link_up)
@@ -150,6 +351,20 @@ int dw_pcie_link_up(struct pcie_port *pp)
 		return 0;
 }
 
+static int dw_pcie_msi_map(struct irq_domain *domain, unsigned int irq,
+			irq_hw_number_t hwirq)
+{
+	irq_set_chip_and_handler(irq, &dw_msi_irq_chip, handle_simple_irq);
+	irq_set_chip_data(irq, domain->host_data);
+	set_irq_flags(irq, IRQF_VALID);
+
+	return 0;
+}
+
+static const struct irq_domain_ops msi_domain_ops = {
+	.map = dw_pcie_msi_map,
+};
+
 int __init dw_pcie_host_init(struct pcie_port *pp)
 {
 	struct device_node *np = pp->dev->of_node;
@@ -157,6 +372,8 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
 	struct of_pci_range_parser parser;
 	u32 val;
 
+	struct irq_domain *irq_domain;
+
 	if (of_pci_range_parser_init(&parser, np)) {
 		dev_err(pp->dev, "missing ranges property\n");
 		return -EINVAL;
@@ -223,6 +440,18 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
 		return -EINVAL;
 	}
 
+	if (IS_ENABLED(CONFIG_PCI_MSI)) {
+		irq_domain = irq_domain_add_linear(pp->dev->of_node,
+					MAX_MSI_IRQS, &msi_domain_ops,
+					&dw_pcie_msi_chip);
+		if (!irq_domain) {
+			dev_err(pp->dev, "irq domain init failed\n");
+			return -ENXIO;
+		}
+
+		pp->msi_irq_start = irq_find_mapping(irq_domain, 0);
+	}
+
 	if (pp->ops->host_init)
 		pp->ops->host_init(pp);
 
@@ -485,10 +714,21 @@ int dw_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 	return pp->irq;
 }
 
+static void dw_pcie_add_bus(struct pci_bus *bus)
+{
+	if (IS_ENABLED(CONFIG_PCI_MSI)) {
+		struct pcie_port *pp = sys_to_pcie(bus->sysdata);
+
+		dw_pcie_msi_chip.dev = pp->dev;
+		bus->msi = &dw_pcie_msi_chip;
+	}
+}
+
 static struct hw_pci dw_pci = {
 	.setup		= dw_pcie_setup,
 	.scan		= dw_pcie_scan_bus,
 	.map_irq	= dw_pcie_map_irq,
+	.add_bus	= dw_pcie_add_bus,
 };
 
 void dw_pcie_setup_rc(struct pcie_port *pp)
diff --git a/drivers/pci/host/pcie-designware.h b/drivers/pci/host/pcie-designware.h
index 133820f1da97..faccbbf31907 100644
--- a/drivers/pci/host/pcie-designware.h
+++ b/drivers/pci/host/pcie-designware.h
@@ -20,6 +20,14 @@ struct pcie_port_info {
 	phys_addr_t	mem_bus_addr;
 };
 
+/*
+ * Maximum number of MSI IRQs can be 256 per controller. But keep
+ * it 32 as of now. Probably we will never need more than 32. If needed,
+ * then increment it in multiple of 32.
+ */
+#define MAX_MSI_IRQS			32
+#define MAX_MSI_CTRLS			(MAX_MSI_IRQS / 32)
+
 struct pcie_port {
 	struct device		*dev;
 	u8			root_bus_nr;
@@ -38,6 +46,10 @@ struct pcie_port {
 	int			irq;
 	u32			lanes;
 	struct pcie_host_ops	*ops;
+	int			msi_irq;
+	int			msi_irq_start;
+	unsigned long		msi_data;
+	DECLARE_BITMAP(msi_irq_in_use, MAX_MSI_IRQS);
 };
 
 struct pcie_host_ops {
@@ -57,6 +69,8 @@ int cfg_read(void __iomem *addr, int where, int size, u32 *val);
 int cfg_write(void __iomem *addr, int where, int size, u32 val);
 int dw_pcie_wr_own_conf(struct pcie_port *pp, int where, int size, u32 val);
 int dw_pcie_rd_own_conf(struct pcie_port *pp, int where, int size, u32 *val);
+void dw_handle_msi_irq(struct pcie_port *pp);
+void dw_pcie_msi_init(struct pcie_port *pp);
 int dw_pcie_link_up(struct pcie_port *pp);
 void dw_pcie_setup_rc(struct pcie_port *pp);
 int dw_pcie_host_init(struct pcie_port *pp);
-- 
cgit 


From f62b878b4dfc71de24ea4bc085d042862cba88e4 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 6 Sep 2013 17:21:45 +0900
Subject: PCI: exynos: Turn off power of phy block when link failed

When link failed, there is no need to turn on phy block. Also,
turning on phy block is added, in order to turn on phy block
regardless of the default value of phy registers.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/host/pci-exynos.c | 68 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 68 insertions(+)

diff --git a/drivers/pci/host/pci-exynos.c b/drivers/pci/host/pci-exynos.c
index f062acaf052a..ee692c2c3d73 100644
--- a/drivers/pci/host/pci-exynos.c
+++ b/drivers/pci/host/pci-exynos.c
@@ -78,18 +78,28 @@ struct exynos_pcie {
 #define PCIE_PHY_PLL_BIAS		0x00c
 #define PCIE_PHY_DCC_FEEDBACK		0x014
 #define PCIE_PHY_PLL_DIV_1		0x05c
+#define PCIE_PHY_COMMON_POWER		0x064
+#define PCIE_PHY_COMMON_PD_CMN		(0x1 << 3)
 #define PCIE_PHY_TRSV0_EMP_LVL		0x084
 #define PCIE_PHY_TRSV0_DRV_LVL		0x088
 #define PCIE_PHY_TRSV0_RXCDR		0x0ac
+#define PCIE_PHY_TRSV0_POWER		0x0c4
+#define PCIE_PHY_TRSV0_PD_TSV		(0x1 << 7)
 #define PCIE_PHY_TRSV0_LVCC		0x0dc
 #define PCIE_PHY_TRSV1_EMP_LVL		0x144
 #define PCIE_PHY_TRSV1_RXCDR		0x16c
+#define PCIE_PHY_TRSV1_POWER		0x184
+#define PCIE_PHY_TRSV1_PD_TSV		(0x1 << 7)
 #define PCIE_PHY_TRSV1_LVCC		0x19c
 #define PCIE_PHY_TRSV2_EMP_LVL		0x204
 #define PCIE_PHY_TRSV2_RXCDR		0x22c
+#define PCIE_PHY_TRSV2_POWER		0x244
+#define PCIE_PHY_TRSV2_PD_TSV		(0x1 << 7)
 #define PCIE_PHY_TRSV2_LVCC		0x25c
 #define PCIE_PHY_TRSV3_EMP_LVL		0x2c4
 #define PCIE_PHY_TRSV3_RXCDR		0x2ec
+#define PCIE_PHY_TRSV3_POWER		0x304
+#define PCIE_PHY_TRSV3_PD_TSV		(0x1 << 7)
 #define PCIE_PHY_TRSV3_LVCC		0x31c
 
 static inline void exynos_elb_writel(struct exynos_pcie *pcie, u32 val, u32 reg)
@@ -203,6 +213,58 @@ static void exynos_pcie_deassert_phy_reset(struct pcie_port *pp)
 	exynos_blk_writel(exynos_pcie, 0, PCIE_PHY_TRSV_RESET);
 }
 
+static void exynos_pcie_power_on_phy(struct pcie_port *pp)
+{
+	u32 val;
+	struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
+
+	val = exynos_phy_readl(exynos_pcie, PCIE_PHY_COMMON_POWER);
+	val &= ~PCIE_PHY_COMMON_PD_CMN;
+	exynos_phy_writel(exynos_pcie, val, PCIE_PHY_COMMON_POWER);
+
+	val = exynos_phy_readl(exynos_pcie, PCIE_PHY_TRSV0_POWER);
+	val &= ~PCIE_PHY_TRSV0_PD_TSV;
+	exynos_phy_writel(exynos_pcie, val, PCIE_PHY_TRSV0_POWER);
+
+	val = exynos_phy_readl(exynos_pcie, PCIE_PHY_TRSV1_POWER);
+	val &= ~PCIE_PHY_TRSV1_PD_TSV;
+	exynos_phy_writel(exynos_pcie, val, PCIE_PHY_TRSV1_POWER);
+
+	val = exynos_phy_readl(exynos_pcie, PCIE_PHY_TRSV2_POWER);
+	val &= ~PCIE_PHY_TRSV2_PD_TSV;
+	exynos_phy_writel(exynos_pcie, val, PCIE_PHY_TRSV2_POWER);
+
+	val = exynos_phy_readl(exynos_pcie, PCIE_PHY_TRSV3_POWER);
+	val &= ~PCIE_PHY_TRSV3_PD_TSV;
+	exynos_phy_writel(exynos_pcie, val, PCIE_PHY_TRSV3_POWER);
+}
+
+static void exynos_pcie_power_off_phy(struct pcie_port *pp)
+{
+	u32 val;
+	struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
+
+	val = exynos_phy_readl(exynos_pcie, PCIE_PHY_COMMON_POWER);
+	val |= PCIE_PHY_COMMON_PD_CMN;
+	exynos_phy_writel(exynos_pcie, val, PCIE_PHY_COMMON_POWER);
+
+	val = exynos_phy_readl(exynos_pcie, PCIE_PHY_TRSV0_POWER);
+	val |= PCIE_PHY_TRSV0_PD_TSV;
+	exynos_phy_writel(exynos_pcie, val, PCIE_PHY_TRSV0_POWER);
+
+	val = exynos_phy_readl(exynos_pcie, PCIE_PHY_TRSV1_POWER);
+	val |= PCIE_PHY_TRSV1_PD_TSV;
+	exynos_phy_writel(exynos_pcie, val, PCIE_PHY_TRSV1_POWER);
+
+	val = exynos_phy_readl(exynos_pcie, PCIE_PHY_TRSV2_POWER);
+	val |= PCIE_PHY_TRSV2_PD_TSV;
+	exynos_phy_writel(exynos_pcie, val, PCIE_PHY_TRSV2_POWER);
+
+	val = exynos_phy_readl(exynos_pcie, PCIE_PHY_TRSV3_POWER);
+	val |= PCIE_PHY_TRSV3_PD_TSV;
+	exynos_phy_writel(exynos_pcie, val, PCIE_PHY_TRSV3_POWER);
+}
+
 static void exynos_pcie_init_phy(struct pcie_port *pp)
 {
 	struct exynos_pcie *exynos_pcie = to_exynos_pcie(pp);
@@ -271,6 +333,9 @@ static int exynos_pcie_establish_link(struct pcie_port *pp)
 	/* de-assert phy reset */
 	exynos_pcie_deassert_phy_reset(pp);
 
+	/* power on phy */
+	exynos_pcie_power_on_phy(pp);
+
 	/* initialize phy */
 	exynos_pcie_init_phy(pp);
 
@@ -303,6 +368,9 @@ static int exynos_pcie_establish_link(struct pcie_port *pp)
 						       PCIE_PHY_PLL_LOCKED);
 				dev_info(pp->dev, "PLL Locked: 0x%x\n", val);
 			}
+			/* power off phy */
+			exynos_pcie_power_off_phy(pp);
+
 			dev_err(pp->dev, "PCIe Link Fail\n");
 			return -EINVAL;
 		}
-- 
cgit 


From 1e65249d4a0aa31a7862b9ed04e267d43a4fd267 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 25 Sep 2013 16:40:54 -0600
Subject: PCI: tegra: Add missing __iomem annotation

Added missing __iomem annotation in order to fix the following
sparse warnings:

drivers/pci/host/pci-tegra.c:411:41: warning: incorrect type in return expression (different address spaces)
drivers/pci/host/pci-tegra.c:411:41:    expected void [noderef] <asn:2>*
drivers/pci/host/pci-tegra.c:411:41:    got void *addr
drivers/pci/host/pci-tegra.c:419:25: warning: incorrect type in return expression (different address spaces)
drivers/pci/host/pci-tegra.c:419:25:    expected void [noderef] <asn:2>*
drivers/pci/host/pci-tegra.c:419:25:    got void *addr

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Thierry Reding <treding@nvidia.com>
---
 drivers/pci/host/pci-tegra.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
index 2e9888a0635a..7c4f38dd42ba 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/host/pci-tegra.c
@@ -408,7 +408,7 @@ static void __iomem *tegra_pcie_bus_map(struct tegra_pcie *pcie,
 
 	list_for_each_entry(bus, &pcie->busses, list)
 		if (bus->nr == busnr)
-			return bus->area->addr;
+			return (void __iomem *)bus->area->addr;
 
 	bus = tegra_pcie_bus_alloc(pcie, busnr);
 	if (IS_ERR(bus))
@@ -416,7 +416,7 @@ static void __iomem *tegra_pcie_bus_map(struct tegra_pcie *pcie,
 
 	list_add_tail(&bus->list, &pcie->busses);
 
-	return bus->area->addr;
+	return (void __iomem *)bus->area->addr;
 }
 
 static void __iomem *tegra_pcie_conf_address(struct pci_bus *bus,
-- 
cgit 


From f2acae69a2060b6b1029b9923dbef5e98a8a0ba7 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Wed, 25 Sep 2013 15:44:39 -0700
Subject: ARM: OMAP2+: Always build in board-generic

We are moving to device tree based booting, so board-generic
should always be built.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/Kconfig | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index b5fb5f7992df..f6a1db112168 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -94,6 +94,7 @@ config ARCH_OMAP2PLUS
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_IRQ_CHIP
 	select HAVE_CLK
+	select MACH_OMAP_GENERIC
 	select OMAP_DM_TIMER
 	select PINCTRL
 	select PROC_DEVICETREE if PROC_FS
@@ -187,16 +188,11 @@ config OMAP_PACKAGE_CUS
 config OMAP_PACKAGE_CBP
        bool
 
-comment "OMAP Board Type"
+comment "OMAP Legacy Platform Data Board Type"
 	depends on ARCH_OMAP2PLUS
 
 config MACH_OMAP_GENERIC
-	bool "Generic OMAP2+ board"
-	depends on ARCH_OMAP2PLUS
-	default y
-	help
-	  Support for generic TI OMAP2+ boards using Flattened Device Tree.
-	  More information at Documentation/devicetree
+	bool
 
 config MACH_OMAP2_TUSB6010
 	bool
-- 
cgit 


From 6a08e1e6f7fafa2fa5fb6a129c4c8d9c29f11b62 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Wed, 25 Sep 2013 15:44:39 -0700
Subject: ARM: OMAP2+: Add quirk support for legacy platform data init

We want to drop the board-*.c files but keep things working.
Let's make it a bit easier to support legacy platform data
init with quirks. This also keeps board-generic.c clean from
board specific hacks.

For now, the quirks table is empty, that is populated
in the later patches.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/Makefile        |  2 +-
 arch/arm/mach-omap2/board-generic.c |  1 +
 arch/arm/mach-omap2/common.h        |  2 ++
 arch/arm/mach-omap2/pdata-quirks.c  | 39 +++++++++++++++++++++++++++++++++++++
 4 files changed, 43 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/mach-omap2/pdata-quirks.c

diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index afb457c3135b..f8d4a1b83864 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -233,7 +233,7 @@ obj-y					+= drm.o
 endif
 
 # Specific board support
-obj-$(CONFIG_MACH_OMAP_GENERIC)		+= board-generic.o
+obj-$(CONFIG_MACH_OMAP_GENERIC)		+= board-generic.o pdata-quirks.o
 obj-$(CONFIG_MACH_OMAP_H4)		+= board-h4.o
 obj-$(CONFIG_MACH_OMAP_2430SDP)		+= board-2430sdp.o
 obj-$(CONFIG_MACH_OMAP3_BEAGLE)		+= board-omap3beagle.o
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index 39c78387ddec..022b0df94e0d 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -56,6 +56,7 @@ static void __init omap_generic_init(void)
 	omap_sdrc_init(NULL, NULL);
 
 	of_platform_populate(NULL, omap_dt_match_table, NULL, NULL);
+	pdata_quirks_init();
 
 	/*
 	 * HACK: call display setup code for selected boards to enable omapdss.
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index 4a5684b96492..fd059e02574d 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -288,6 +288,8 @@ static inline void omap4_cpu_resume(void)
 
 #endif
 
+void pdata_quirks_init(void);
+
 struct omap_sdrc_params;
 extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
 				      struct omap_sdrc_params *sdrc_cs1);
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
new file mode 100644
index 000000000000..e6051998f929
--- /dev/null
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -0,0 +1,39 @@
+/*
+ * Legacy platform_data quirks
+ *
+ * Copyright (C) 2013 Texas Instruments
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/clk.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+
+#include "common.h"
+#include "common-board-devices.h"
+#include "dss-common.h"
+
+struct pdata_init {
+	const char *compatible;
+	void (*fn)(void);
+};
+
+static struct pdata_init pdata_quirks[] __initdata = {
+	{ /* sentinel */ },
+};
+
+void __init pdata_quirks_init(void)
+{
+	struct pdata_init *quirks = pdata_quirks;
+
+	while (quirks->compatible) {
+		if (of_machine_is_compatible(quirks->compatible)) {
+			if (quirks->fn)
+				quirks->fn();
+			break;
+		}
+		quirks++;
+	}
+}
-- 
cgit 


From 3e7a318530c3d536972e9a2bb44e0ce0c16eaa4e Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Wed, 25 Sep 2013 15:44:39 -0700
Subject: ARM: OMAP2+: Use pdata quirk support for board-generic.c

Let's use platform data quirk support for board-generic.c.
This removes all board specific hacks out of board-generic.c.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-generic.c | 32 -----------------------------
 arch/arm/mach-omap2/pdata-quirks.c  | 41 +++++++++++++++++++++++++++++++++++++
 2 files changed, 41 insertions(+), 32 deletions(-)

diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index 022b0df94e0d..a66575f33973 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -15,13 +15,10 @@
 #include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/irqdomain.h>
-#include <linux/clk.h>
 
 #include <asm/mach/arch.h>
 
 #include "common.h"
-#include "common-board-devices.h"
-#include "dss-common.h"
 
 #if !(defined(CONFIG_ARCH_OMAP2) || defined(CONFIG_ARCH_OMAP3))
 #define intc_of_init	NULL
@@ -36,41 +33,12 @@ static struct of_device_id omap_dt_match_table[] __initdata = {
 	{ }
 };
 
-/*
- * Create alias for USB host PHY clock.
- * Remove this when clock phandle can be provided via DT
- */
-static void __init legacy_init_ehci_clk(char *clkname)
-{
-	int ret;
-
-	ret = clk_add_alias("main_clk", NULL, clkname, NULL);
-	if (ret) {
-		pr_err("%s:Failed to add main_clk alias to %s :%d\n",
-						__func__, clkname, ret);
-	}
-}
-
 static void __init omap_generic_init(void)
 {
 	omap_sdrc_init(NULL, NULL);
 
 	of_platform_populate(NULL, omap_dt_match_table, NULL, NULL);
 	pdata_quirks_init();
-
-	/*
-	 * HACK: call display setup code for selected boards to enable omapdss.
-	 * This will be removed when omapdss supports DT.
-	 */
-	if (of_machine_is_compatible("ti,omap4-panda")) {
-		omap4_panda_display_init_of();
-		legacy_init_ehci_clk("auxclk3_ck");
-
-	}
-	else if (of_machine_is_compatible("ti,omap4-sdp"))
-		omap_4430sdp_display_init_of();
-	else if (of_machine_is_compatible("ti,omap5-uevm"))
-		legacy_init_ehci_clk("auxclk1_ck");
 }
 
 #ifdef CONFIG_SOC_OMAP2420
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index e6051998f929..648d9573aaea 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -20,7 +20,48 @@ struct pdata_init {
 	void (*fn)(void);
 };
 
+/*
+ * Create alias for USB host PHY clock.
+ * Remove this when clock phandle can be provided via DT
+ */
+static void __init __used legacy_init_ehci_clk(char *clkname)
+{
+	int ret;
+
+	ret = clk_add_alias("main_clk", NULL, clkname, NULL);
+	if (ret)
+		pr_err("%s:Failed to add main_clk alias to %s :%d\n",
+		       __func__, clkname, ret);
+}
+
+#ifdef CONFIG_ARCH_OMAP4
+static void __init omap4_sdp_legacy_init(void)
+{
+	omap_4430sdp_display_init_of();
+}
+
+static void __init omap4_panda_legacy_init(void)
+{
+	omap4_panda_display_init_of();
+	legacy_init_ehci_clk("auxclk3_ck");
+}
+#endif
+
+#ifdef CONFIG_SOC_OMAP5
+static void __init omap5_uevm_legacy_init(void)
+{
+	legacy_init_ehci_clk("auxclk1_ck");
+}
+#endif
+
 static struct pdata_init pdata_quirks[] __initdata = {
+#ifdef CONFIG_ARCH_OMAP4
+	{ "ti,omap4-sdp", omap4_sdp_legacy_init, },
+	{ "ti,omap4-panda", omap4_panda_legacy_init, },
+#endif
+#ifdef CONFIG_SOC_OMAP5
+	{ "ti,omap5-uevm", omap5_uevm_legacy_init, },
+#endif
 	{ /* sentinel */ },
 };
 
-- 
cgit 


From 5f0a2c6976d0bfaeda1eaba1837f28e5a3146a69 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Wed, 25 Sep 2013 15:44:40 -0700
Subject: ARM: OMAP2+: Use pdata quirks for wl12xx legacy init

Let's use the platform data quirk support for wl12xx
and move the board specific code out of devices.c.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/devices.c      | 38 --------------------------------------
 arch/arm/mach-omap2/pdata-quirks.c | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 33 insertions(+), 38 deletions(-)

diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index 5c5315ba129b..5336c75926cd 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -19,7 +19,6 @@
 #include <linux/of.h>
 #include <linux/pinctrl/machine.h>
 #include <linux/platform_data/omap4-keypad.h>
-#include <linux/wl12xx.h>
 #include <linux/platform_data/mailbox-omap.h>
 
 #include <asm/mach-types.h>
@@ -475,40 +474,6 @@ static void omap_init_vout(void)
 static inline void omap_init_vout(void) {}
 #endif
 
-#if IS_ENABLED(CONFIG_WL12XX)
-
-static struct wl12xx_platform_data wl12xx __initdata;
-
-void __init omap_init_wl12xx_of(void)
-{
-	int ret;
-
-	if (!of_have_populated_dt())
-		return;
-
-	if (of_machine_is_compatible("ti,omap4-sdp")) {
-		wl12xx.board_ref_clock = WL12XX_REFCLOCK_26;
-		wl12xx.board_tcxo_clock = WL12XX_TCXOCLOCK_26;
-		wl12xx.irq = gpio_to_irq(53);
-	} else if (of_machine_is_compatible("ti,omap4-panda")) {
-		wl12xx.board_ref_clock = WL12XX_REFCLOCK_38;
-		wl12xx.irq = gpio_to_irq(53);
-	} else {
-		return;
-	}
-
-	ret = wl12xx_set_platform_data(&wl12xx);
-	if (ret) {
-		pr_err("error setting wl12xx data: %d\n", ret);
-		return;
-	}
-}
-#else
-static inline void omap_init_wl12xx_of(void)
-{
-}
-#endif
-
 /*-------------------------------------------------------------------------*/
 
 static int __init omap2_init_devices(void)
@@ -531,9 +496,6 @@ static int __init omap2_init_devices(void)
 		omap_init_sham();
 		omap_init_aes();
 		omap_init_rng();
-	} else {
-		/* These can be removed when bindings are done */
-		omap_init_wl12xx_of();
 	}
 	omap_init_sti();
 	omap_init_vout();
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index 648d9573aaea..04bfa647a934 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -8,8 +8,10 @@
  * published by the Free Software Foundation.
  */
 #include <linux/clk.h>
+#include <linux/gpio.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
+#include <linux/wl12xx.h>
 
 #include "common.h"
 #include "common-board-devices.h"
@@ -34,16 +36,47 @@ static void __init __used legacy_init_ehci_clk(char *clkname)
 		       __func__, clkname, ret);
 }
 
+#if IS_ENABLED(CONFIG_WL12XX)
+
+static struct wl12xx_platform_data wl12xx __initdata;
+
+static void __init __used legacy_init_wl12xx(unsigned ref_clock,
+					     unsigned tcxo_clock,
+					     int gpio)
+{
+	int res;
+
+	wl12xx.board_ref_clock = ref_clock;
+	wl12xx.board_tcxo_clock = tcxo_clock;
+	wl12xx.irq = gpio_to_irq(gpio);
+
+	res = wl12xx_set_platform_data(&wl12xx);
+	if (res) {
+		pr_err("error setting wl12xx data: %d\n", res);
+		return;
+	}
+}
+#else
+static inline void legacy_init_wl12xx(unsigned ref_clock,
+				      unsigned tcxo_clock,
+				      int gpio)
+{
+}
+#endif
+
 #ifdef CONFIG_ARCH_OMAP4
 static void __init omap4_sdp_legacy_init(void)
 {
 	omap_4430sdp_display_init_of();
+	legacy_init_wl12xx(WL12XX_REFCLOCK_26,
+			   WL12XX_TCXOCLOCK_26, 53);
 }
 
 static void __init omap4_panda_legacy_init(void)
 {
 	omap4_panda_display_init_of();
 	legacy_init_ehci_clk("auxclk3_ck");
+	legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 53);
 }
 #endif
 
-- 
cgit 


From 20fb170b293218ef66ce885df3a77903e3d11572 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 18 Sep 2013 11:47:26 -0700
Subject: staging: comedi: adl_pci6208: save raw data for analog output
 readback

This driver munges the raw data from the comedi core into its two's
complement form before writing it to the hardware. The last value
written to the hardware is saved in the private data for readback.

Since the comedi core always expects the data to be in offset binary
coding, make sure to save the un-munged value for readback.

Also, prefetch the current readback value before attempting to update
the hardware. This ensures that the readback value is correct if no
values are actually written.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/adl_pci6208.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/comedi/drivers/adl_pci6208.c b/drivers/staging/comedi/drivers/adl_pci6208.c
index 60f1f5c9532d..9150582fad06 100644
--- a/drivers/staging/comedi/drivers/adl_pci6208.c
+++ b/drivers/staging/comedi/drivers/adl_pci6208.c
@@ -88,21 +88,21 @@ static int pci6208_ao_winsn(struct comedi_device *dev,
 {
 	struct pci6208_private *devpriv = dev->private;
 	int chan = CR_CHAN(insn->chanspec);
-	unsigned long invert = 1 << (16 - 1);
-	unsigned long value = 0;
+	unsigned int invert = 1 << (16 - 1);
+	unsigned int val = devpriv->ao_readback[chan];
 	unsigned short status;
 	int i;
 
 	for (i = 0; i < insn->n; i++) {
-		value = data[i] ^ invert;
+		val = data[i];
 
 		do {
 			status = inw(dev->iobase + PCI6208_AO_STATUS);
 		} while (status & PCI6208_AO_STATUS_DATA_SEND);
 
-		outw(value, dev->iobase + PCI6208_AO_CONTROL(chan));
+		outw(val ^ invert, dev->iobase + PCI6208_AO_CONTROL(chan));
 	}
-	devpriv->ao_readback[chan] = value;
+	devpriv->ao_readback[chan] = val;
 
 	return insn->n;
 }
-- 
cgit 


From b609a5959f5ee44342d08ad37faba11bfbeb8b92 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 18 Sep 2013 11:48:41 -0700
Subject: staging: comedi: adl_pci6208: don't deadlock while waiting to write
 ao data

Remove a possible deadlock while waiting to write the analog output data.

The data transfer rate for every D/A data write in this driver is 2.2us.
Wait up to 10us for the board to be ready then and return -ETIME.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/adl_pci6208.c | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/comedi/drivers/adl_pci6208.c b/drivers/staging/comedi/drivers/adl_pci6208.c
index 9150582fad06..059d7ea9503d 100644
--- a/drivers/staging/comedi/drivers/adl_pci6208.c
+++ b/drivers/staging/comedi/drivers/adl_pci6208.c
@@ -39,6 +39,7 @@ References:
 */
 
 #include <linux/module.h>
+#include <linux/delay.h>
 #include <linux/pci.h>
 
 #include "../comedidev.h"
@@ -82,6 +83,21 @@ struct pci6208_private {
 	unsigned int ao_readback[PCI6208_MAX_AO_CHANNELS];
 };
 
+static int pci6208_ao_wait_for_data_send(struct comedi_device *dev,
+					 unsigned int timeout)
+{
+	unsigned int status;
+
+	while (timeout--) {
+		status = inw(dev->iobase + PCI6208_AO_STATUS);
+		if ((status & PCI6208_AO_STATUS_DATA_SEND) == 0)
+			return 0;
+		udelay(1);
+	}
+
+	return -ETIME;
+}
+
 static int pci6208_ao_winsn(struct comedi_device *dev,
 			    struct comedi_subdevice *s,
 			    struct comedi_insn *insn, unsigned int *data)
@@ -90,15 +106,16 @@ static int pci6208_ao_winsn(struct comedi_device *dev,
 	int chan = CR_CHAN(insn->chanspec);
 	unsigned int invert = 1 << (16 - 1);
 	unsigned int val = devpriv->ao_readback[chan];
-	unsigned short status;
+	int ret;
 	int i;
 
 	for (i = 0; i < insn->n; i++) {
 		val = data[i];
 
-		do {
-			status = inw(dev->iobase + PCI6208_AO_STATUS);
-		} while (status & PCI6208_AO_STATUS_DATA_SEND);
+		/* D/A transfer rate is 2.2us, wait up to 10us */
+		ret = pci6208_ao_wait_for_data_send(dev, 10);
+		if (ret)
+			return ret;
 
 		outw(val ^ invert, dev->iobase + PCI6208_AO_CONTROL(chan));
 	}
-- 
cgit 


From f0b215d6e8df3b595758b673543a96a013721d8f Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 18 Sep 2013 11:49:33 -0700
Subject: staging: comedi: core: introduce comedi_offset_munge()

The comedi core expects the data to/from analog subdevices to be
in offset binary coding. This means that a value of '0' represents
the most negative and a value of 's->maxdata' the most positive
signal of the analog subdevice.

Many comedi drivers require the data written to the analog outputs,
or returned from the analog inputs, be in two's complement format.

Introduce a helper function to munge the data for analog subdevices.
This function simply inverts the sign bit and masks the result by
's->maxdata' to keep the result in range for the subdevice. The
strange:

  return val ^ s->maxdata ^ (s->maxdata >> 1);

is equivalent to:

  return (val ^ ((s->maxdata + 1) >> 1) & s->maxdata;

as long as s->maxdata is a value of the form (1 << n) - 1. This
avoids the 32-bit unsigned overflow for a s->maxdata of 0xffffffff.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/comedidev.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h
index 1d8e61a822fd..bec227665e6a 100644
--- a/drivers/staging/comedi/comedidev.h
+++ b/drivers/staging/comedi/comedidev.h
@@ -307,7 +307,12 @@ static inline bool comedi_range_is_unipolar(struct comedi_subdevice *s,
 	return s->range_table->range[range].min >= 0;
 }
 
-/* some silly little inline functions */
+/* munge between offset binary and two's complement values */
+static inline unsigned int comedi_offset_munge(struct comedi_subdevice *s,
+					       unsigned int val)
+{
+	return val ^ s->maxdata ^ (s->maxdata >> 1);
+}
 
 static inline unsigned int bytes_per_sample(const struct comedi_subdevice *subd)
 {
-- 
cgit 


From 8a6573a875dea244a5b6ca27174f1a3f3898d8ee Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 18 Sep 2013 11:50:05 -0700
Subject: staging: comedi: adl_pci6208: use comedi_offset_munge()

Use comedi_offset_munge() to munge the offset binary values from the
comedi core into the two's complement form that the hardware expects.

This removes the hard coded assumption that the analog outputs are
16-bits and instead does the munging based on the s->maxdata.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/adl_pci6208.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/adl_pci6208.c b/drivers/staging/comedi/drivers/adl_pci6208.c
index 059d7ea9503d..db808733f2f5 100644
--- a/drivers/staging/comedi/drivers/adl_pci6208.c
+++ b/drivers/staging/comedi/drivers/adl_pci6208.c
@@ -104,7 +104,6 @@ static int pci6208_ao_winsn(struct comedi_device *dev,
 {
 	struct pci6208_private *devpriv = dev->private;
 	int chan = CR_CHAN(insn->chanspec);
-	unsigned int invert = 1 << (16 - 1);
 	unsigned int val = devpriv->ao_readback[chan];
 	int ret;
 	int i;
@@ -117,7 +116,9 @@ static int pci6208_ao_winsn(struct comedi_device *dev,
 		if (ret)
 			return ret;
 
-		outw(val ^ invert, dev->iobase + PCI6208_AO_CONTROL(chan));
+		/* the hardware expects two's complement values */
+		outw(comedi_offset_munge(s, val),
+		     dev->iobase + PCI6208_AO_CONTROL(chan));
 	}
 	devpriv->ao_readback[chan] = val;
 
-- 
cgit 


From a99a29437080eb85f15bc6744150885ee01c1505 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 18 Sep 2013 11:50:35 -0700
Subject: staging: comedi: adl_pci6208: tidy up pci6208_ao_winsn()

For aesthetics, rename this function to help with greps,

Change the type of 'chan' to match the type of the insn->chanspec
that it is derived from using the CR_CHAN macro.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/adl_pci6208.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/comedi/drivers/adl_pci6208.c b/drivers/staging/comedi/drivers/adl_pci6208.c
index db808733f2f5..737f91a60a14 100644
--- a/drivers/staging/comedi/drivers/adl_pci6208.c
+++ b/drivers/staging/comedi/drivers/adl_pci6208.c
@@ -98,12 +98,13 @@ static int pci6208_ao_wait_for_data_send(struct comedi_device *dev,
 	return -ETIME;
 }
 
-static int pci6208_ao_winsn(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn, unsigned int *data)
+static int pci6208_ao_insn_write(struct comedi_device *dev,
+				 struct comedi_subdevice *s,
+				 struct comedi_insn *insn,
+				 unsigned int *data)
 {
 	struct pci6208_private *devpriv = dev->private;
-	int chan = CR_CHAN(insn->chanspec);
+	unsigned int chan = CR_CHAN(insn->chanspec);
 	unsigned int val = devpriv->ao_readback[chan];
 	int ret;
 	int i;
@@ -204,7 +205,7 @@ static int pci6208_auto_attach(struct comedi_device *dev,
 	s->n_chan	= boardinfo->ao_chans;
 	s->maxdata	= 0xffff;
 	s->range_table	= &range_bipolar10;
-	s->insn_write	= pci6208_ao_winsn;
+	s->insn_write	= pci6208_ao_insn_write;
 	s->insn_read	= pci6208_ao_rinsn;
 
 	s = &dev->subdevices[1];
-- 
cgit 


From c354fe06cf04481273f3fee8c5424d0665267d80 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 18 Sep 2013 11:50:54 -0700
Subject: staging: comedi: adl_pci6208: tidy up pci6208_ao_rinsn()

For aesthetics, rename this function to help with greps,

Change the type of 'chan' to match the type of the insn->chanspec
that it is derived from using the CR_CHAN macro.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/adl_pci6208.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/comedi/drivers/adl_pci6208.c b/drivers/staging/comedi/drivers/adl_pci6208.c
index 737f91a60a14..26f1c2523694 100644
--- a/drivers/staging/comedi/drivers/adl_pci6208.c
+++ b/drivers/staging/comedi/drivers/adl_pci6208.c
@@ -126,12 +126,13 @@ static int pci6208_ao_insn_write(struct comedi_device *dev,
 	return insn->n;
 }
 
-static int pci6208_ao_rinsn(struct comedi_device *dev,
-			    struct comedi_subdevice *s,
-			    struct comedi_insn *insn, unsigned int *data)
+static int pci6208_ao_insn_read(struct comedi_device *dev,
+				struct comedi_subdevice *s,
+				struct comedi_insn *insn,
+				unsigned int *data)
 {
 	struct pci6208_private *devpriv = dev->private;
-	int chan = CR_CHAN(insn->chanspec);
+	unsigned int chan = CR_CHAN(insn->chanspec);
 	int i;
 
 	for (i = 0; i < insn->n; i++)
@@ -206,7 +207,7 @@ static int pci6208_auto_attach(struct comedi_device *dev,
 	s->maxdata	= 0xffff;
 	s->range_table	= &range_bipolar10;
 	s->insn_write	= pci6208_ao_insn_write;
-	s->insn_read	= pci6208_ao_rinsn;
+	s->insn_read	= pci6208_ao_insn_read;
 
 	s = &dev->subdevices[1];
 	/* digital input subdevice */
-- 
cgit 


From 7b5f9dbcd8eb5de65756a2b1c89d2d5adfb933d2 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 18 Sep 2013 11:51:14 -0700
Subject: staging: comedi: adl_pci6208: remove board attach noise

Remove the final dev_info() at the end of the board attach. This is
just added noise.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/adl_pci6208.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/staging/comedi/drivers/adl_pci6208.c b/drivers/staging/comedi/drivers/adl_pci6208.c
index 26f1c2523694..588653dd17ac 100644
--- a/drivers/staging/comedi/drivers/adl_pci6208.c
+++ b/drivers/staging/comedi/drivers/adl_pci6208.c
@@ -235,9 +235,6 @@ static int pci6208_auto_attach(struct comedi_device *dev,
 	val = (val & PCI6208_DIO_DO_MASK) >> PCI6208_DIO_DO_SHIFT;
 	s->state	= val;
 
-	dev_info(dev->class_dev, "%s: %s, I/O base=0x%04lx\n",
-		dev->driver->driver_name, dev->board_name, dev->iobase);
-
 	return 0;
 }
 
-- 
cgit 


From 6d09991e9cf23327849c6db632b42874e5d8ee93 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 18 Sep 2013 11:51:34 -0700
Subject: staging: comedi: adl_pci6208: tidy up multi-line comments

Tidy up the multi-line comments to follow the CodingStyle.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/adl_pci6208.c | 64 ++++++++++++----------------
 1 file changed, 27 insertions(+), 37 deletions(-)

diff --git a/drivers/staging/comedi/drivers/adl_pci6208.c b/drivers/staging/comedi/drivers/adl_pci6208.c
index 588653dd17ac..4e7ca05b4d8c 100644
--- a/drivers/staging/comedi/drivers/adl_pci6208.c
+++ b/drivers/staging/comedi/drivers/adl_pci6208.c
@@ -1,42 +1,32 @@
 /*
-    comedi/drivers/adl_pci6208.c
-
-    Hardware driver for ADLink 6208 series cards:
-	card	     | voltage output    | current output
-	-------------+-------------------+---------------
-	PCI-6208V    |  8 channels       | -
-	PCI-6216V    | 16 channels       | -
-	PCI-6208A    |  8 channels       | 8 channels
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
+ * adl_pci6208.c
+ * Comedi driver for ADLink 6208 series cards
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
 /*
-Driver: adl_pci6208
-Description: ADLink PCI-6208/6216 Series Multi-channel Analog Output Cards
-Devices: (ADLink) PCI-6208 [adl_pci6208]
-	 (ADLink) PCI-6216 [adl_pci6216]
-Author: nsyeow <nsyeow@pd.jaring.my>
-Updated: Fri, 30 Jan 2004 14:44:27 +0800
-Status: untested
-
-Configuration Options: not applicable, uses PCI auto config
-
-References:
-	- ni_660x.c
-	- adl_pci9111.c		copied the entire pci setup section
-	- adl_pci9118.c
-*/
+ * Driver: adl_pci6208
+ * Description: ADLink PCI-6208/6216 Series Multi-channel Analog Output Cards
+ * Devices: (ADLink) PCI-6208 [adl_pci6208]
+ *	    (ADLink) PCI-6216 [adl_pci6216]
+ * Author: nsyeow <nsyeow@pd.jaring.my>
+ * Updated: Fri, 30 Jan 2004 14:44:27 +0800
+ * Status: untested
+ *
+ * Configuration Options: not applicable, uses PCI auto config
+ */
 
 #include <linux/module.h>
 #include <linux/delay.h>
-- 
cgit 


From 968265fd9c97fa02a65c2798ba03be229936fb77 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 18 Sep 2013 11:51:56 -0700
Subject: staging: comedi: adl_pci6208: change MODULE_DESCRIPTION

Change the MODULE_DESCRIPTION to something useful instead of the
generic "Comedi low-level driver".

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/adl_pci6208.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/adl_pci6208.c b/drivers/staging/comedi/drivers/adl_pci6208.c
index 4e7ca05b4d8c..dd092c7954a9 100644
--- a/drivers/staging/comedi/drivers/adl_pci6208.c
+++ b/drivers/staging/comedi/drivers/adl_pci6208.c
@@ -258,5 +258,5 @@ static struct pci_driver adl_pci6208_pci_driver = {
 module_comedi_pci_driver(adl_pci6208_driver, adl_pci6208_pci_driver);
 
 MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
+MODULE_DESCRIPTION("Comedi driver for ADLink 6208 series cards");
 MODULE_LICENSE("GPL");
-- 
cgit 


From 9adfdf90ec9432a38fe8071adc170db4d4c2d09e Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:33:51 -0700
Subject: staging: comedi: pcl711: convert boardinfo declaration to C99 format

Convert the boardinfo declaration to C99 format to make it less error
prone and easier to maintain.

For aesthetics, move the declaration closer to the struct definition.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 52 ++++++++++++++++++++++++++++-----
 1 file changed, 44 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 53cd1af7ce9d..c7d7684f71dc 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -132,7 +132,6 @@ static const struct comedi_lrange range_acl8112dg_ai = { 9, {
 static const int i8253_osc_base = 500;	/* 2 Mhz */
 
 struct pcl711_board {
-
 	const char *name;
 	int is_pcl711b;
 	int is_8112;
@@ -144,6 +143,50 @@ struct pcl711_board {
 	const struct comedi_lrange *ai_range_type;
 };
 
+static const struct pcl711_board boardtypes[] = {
+	{
+		.name		= "pcl711",
+		.is_pcl711b	= 0,
+		.is_8112	= 0,
+		.is_dg		= 0,
+		.n_ranges	= 5,
+		.n_aichan	= 8,
+		.n_aochan	= 1,
+		.maxirq		= 0,
+		.ai_range_type	= &range_bipolar5,
+	}, {
+		.name		= "pcl711b",
+		.is_pcl711b	= 1,
+		.is_8112	= 0,
+		.is_dg		= 0,
+		.n_ranges	= 5,
+		.n_aichan	= 8,
+		.n_aochan	= 1,
+		.maxirq		= 7,
+		.ai_range_type	= &range_pcl711b_ai,
+	}, {
+		.name		= "acl8112hg",
+		.is_pcl711b	= 0,
+		.is_8112	= 1,
+		.is_dg		= 0,
+		.n_ranges	= 12,
+		.n_aichan	= 16,
+		.n_aochan	= 2,
+		.maxirq		= 15,
+		.ai_range_type	= &range_acl8112hg_ai,
+	}, {
+		.name		= "acl8112dg",
+		.is_pcl711b	= 0,
+		.is_8112	= 1,
+		.is_dg		= 1,
+		.n_ranges	= 9,
+		.n_aichan	= 16,
+		.n_aochan	= 2,
+		.maxirq		= 15,
+		.ai_range_type	= &range_acl8112dg_ai,
+	},
+};
+
 struct pcl711_private {
 
 	int board;
@@ -545,13 +588,6 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	return 0;
 }
 
-static const struct pcl711_board boardtypes[] = {
-	{ "pcl711", 0, 0, 0, 5, 8, 1, 0, &range_bipolar5 },
-	{ "pcl711b", 1, 0, 0, 5, 8, 1, 7, &range_pcl711b_ai },
-	{ "acl8112hg", 0, 1, 0, 12, 16, 2, 15, &range_acl8112hg_ai },
-	{ "acl8112dg", 0, 1, 1, 9, 16, 2, 15, &range_acl8112dg_ai },
-};
-
 static struct comedi_driver pcl711_driver = {
 	.driver_name	= "pcl711",
 	.module		= THIS_MODULE,
-- 
cgit 


From 5deee09162a0d9151289a78e4784becf2699f5b0 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:34:14 -0700
Subject: staging: comedi: pcl711: remove all '= 0' boardinfo

Remove all the '= 0' entries in the boardinfo. They will default to 0.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index c7d7684f71dc..037a5840683f 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -146,19 +146,13 @@ struct pcl711_board {
 static const struct pcl711_board boardtypes[] = {
 	{
 		.name		= "pcl711",
-		.is_pcl711b	= 0,
-		.is_8112	= 0,
-		.is_dg		= 0,
 		.n_ranges	= 5,
 		.n_aichan	= 8,
 		.n_aochan	= 1,
-		.maxirq		= 0,
 		.ai_range_type	= &range_bipolar5,
 	}, {
 		.name		= "pcl711b",
 		.is_pcl711b	= 1,
-		.is_8112	= 0,
-		.is_dg		= 0,
 		.n_ranges	= 5,
 		.n_aichan	= 8,
 		.n_aochan	= 1,
@@ -166,9 +160,7 @@ static const struct pcl711_board boardtypes[] = {
 		.ai_range_type	= &range_pcl711b_ai,
 	}, {
 		.name		= "acl8112hg",
-		.is_pcl711b	= 0,
 		.is_8112	= 1,
-		.is_dg		= 0,
 		.n_ranges	= 12,
 		.n_aichan	= 16,
 		.n_aochan	= 2,
@@ -176,7 +168,6 @@ static const struct pcl711_board boardtypes[] = {
 		.ai_range_type	= &range_acl8112hg_ai,
 	}, {
 		.name		= "acl8112dg",
-		.is_pcl711b	= 0,
 		.is_8112	= 1,
 		.is_dg		= 1,
 		.n_ranges	= 9,
-- 
cgit 


From e7de66da57b4b19c07f591941392087d436bde42 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:34:36 -0700
Subject: staging: comedi: pcl711: remove unused boardinfo

The 'is_dg' and 'n_ranges' members in the boardinfo are not used by
the driver. Remove them.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 037a5840683f..e1cdb365fed4 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -135,8 +135,6 @@ struct pcl711_board {
 	const char *name;
 	int is_pcl711b;
 	int is_8112;
-	int is_dg;
-	int n_ranges;
 	int n_aichan;
 	int n_aochan;
 	int maxirq;
@@ -146,14 +144,12 @@ struct pcl711_board {
 static const struct pcl711_board boardtypes[] = {
 	{
 		.name		= "pcl711",
-		.n_ranges	= 5,
 		.n_aichan	= 8,
 		.n_aochan	= 1,
 		.ai_range_type	= &range_bipolar5,
 	}, {
 		.name		= "pcl711b",
 		.is_pcl711b	= 1,
-		.n_ranges	= 5,
 		.n_aichan	= 8,
 		.n_aochan	= 1,
 		.maxirq		= 7,
@@ -161,7 +157,6 @@ static const struct pcl711_board boardtypes[] = {
 	}, {
 		.name		= "acl8112hg",
 		.is_8112	= 1,
-		.n_ranges	= 12,
 		.n_aichan	= 16,
 		.n_aochan	= 2,
 		.maxirq		= 15,
@@ -169,8 +164,6 @@ static const struct pcl711_board boardtypes[] = {
 	}, {
 		.name		= "acl8112dg",
 		.is_8112	= 1,
-		.is_dg		= 1,
-		.n_ranges	= 9,
 		.n_aichan	= 16,
 		.n_aochan	= 2,
 		.maxirq		= 15,
-- 
cgit 


From a08ec374aa00ba6736cd56df6e3027d3fd29f11d Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:34:58 -0700
Subject: staging: comedi: pcl711: convert boardinfo flags to bit-fields

To save a bit of space, convert the 'is_pcl711b' and 'is_8112' flags
in the boardinfo to bit-fields.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index e1cdb365fed4..80d6a4c9dd80 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -133,8 +133,8 @@ static const int i8253_osc_base = 500;	/* 2 Mhz */
 
 struct pcl711_board {
 	const char *name;
-	int is_pcl711b;
-	int is_8112;
+	unsigned int is_pcl711b:1;
+	unsigned int is_8112:1;
 	int n_aichan;
 	int n_aochan;
 	int maxirq;
-- 
cgit 


From 95dbf5d2ae285aa8bc365ad7afbd10d8498e6a35 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:35:20 -0700
Subject: staging: comedi: pcl711: tidy up the comedi_lrange tables

For aesthetic reasons, cleanup the whitespace in the comedi_lrange
tables.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 67 +++++++++++++++++----------------
 1 file changed, 35 insertions(+), 32 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 80d6a4c9dd80..92a4dcc332ad 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -84,42 +84,45 @@ supported.
 #define PCL711_DO_LO 13
 #define PCL711_DO_HI 14
 
-static const struct comedi_lrange range_pcl711b_ai = { 5, {
-							   BIP_RANGE(5),
-							   BIP_RANGE(2.5),
-							   BIP_RANGE(1.25),
-							   BIP_RANGE(0.625),
-							   BIP_RANGE(0.3125)
-							   }
+static const struct comedi_lrange range_pcl711b_ai = {
+	5, {
+		BIP_RANGE(5),
+		BIP_RANGE(2.5),
+		BIP_RANGE(1.25),
+		BIP_RANGE(0.625),
+		BIP_RANGE(0.3125)
+	}
 };
 
-static const struct comedi_lrange range_acl8112hg_ai = { 12, {
-							      BIP_RANGE(5),
-							      BIP_RANGE(0.5),
-							      BIP_RANGE(0.05),
-							      BIP_RANGE(0.005),
-							      UNI_RANGE(10),
-							      UNI_RANGE(1),
-							      UNI_RANGE(0.1),
-							      UNI_RANGE(0.01),
-							      BIP_RANGE(10),
-							      BIP_RANGE(1),
-							      BIP_RANGE(0.1),
-							      BIP_RANGE(0.01)
-							      }
+static const struct comedi_lrange range_acl8112hg_ai = {
+	12, {
+		BIP_RANGE(5),
+		BIP_RANGE(0.5),
+		BIP_RANGE(0.05),
+		BIP_RANGE(0.005),
+		UNI_RANGE(10),
+		UNI_RANGE(1),
+		UNI_RANGE(0.1),
+		UNI_RANGE(0.01),
+		BIP_RANGE(10),
+		BIP_RANGE(1),
+		BIP_RANGE(0.1),
+		BIP_RANGE(0.01)
+	}
 };
 
-static const struct comedi_lrange range_acl8112dg_ai = { 9, {
-							     BIP_RANGE(5),
-							     BIP_RANGE(2.5),
-							     BIP_RANGE(1.25),
-							     BIP_RANGE(0.625),
-							     UNI_RANGE(10),
-							     UNI_RANGE(5),
-							     UNI_RANGE(2.5),
-							     UNI_RANGE(1.25),
-							     BIP_RANGE(10)
-							     }
+static const struct comedi_lrange range_acl8112dg_ai = {
+	9, {
+		BIP_RANGE(5),
+		BIP_RANGE(2.5),
+		BIP_RANGE(1.25),
+		BIP_RANGE(0.625),
+		UNI_RANGE(10),
+		UNI_RANGE(5),
+		UNI_RANGE(2.5),
+		UNI_RANGE(1.25),
+		BIP_RANGE(10)
+	}
 };
 
 /*
-- 
cgit 


From baa7189131e573d569c13585f9952ddf255f5b47 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:35:52 -0700
Subject: staging: comedi: pcl711: don't fail attach if irq is unavailable

Interrupts are only needed to support asynchronous commands with the
analog input subdevice. Since the interrupt is optional during the
attach of the board, don't fail the attach if it's not available.

Also, remove the printk() noise about the irq. The user will know if
the interrupt is available due to the subdev_flag SDF_CMD_READ being
set for the analog input subdevice.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 23 ++++++-----------------
 1 file changed, 6 insertions(+), 17 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 92a4dcc332ad..45a8614fb2f6 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -477,29 +477,18 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	const struct pcl711_board *board = comedi_board(dev);
 	struct pcl711_private *devpriv;
 	int ret;
-	unsigned int irq;
 	struct comedi_subdevice *s;
 
 	ret = comedi_request_region(dev, it->options[0], PCL711_SIZE);
 	if (ret)
 		return ret;
 
-	/* grab our IRQ */
-	irq = it->options[1];
-	if (irq > board->maxirq) {
-		printk(KERN_ERR "irq out of range\n");
-		return -EINVAL;
+	if (it->options[1] && it->options[1] <= board->maxirq) {
+		ret = request_irq(it->options[1], pcl711_interrupt, 0,
+				  dev->board_name, dev);
+		if (ret == 0)
+			dev->irq = it->options[1];
 	}
-	if (irq) {
-		if (request_irq(irq, pcl711_interrupt, 0, dev->board_name,
-			        dev)) {
-			printk(KERN_ERR "unable to allocate irq %u\n", irq);
-			return -EINVAL;
-		} else {
-			printk(KERN_INFO "( irq = %u )\n", irq);
-		}
-	}
-	dev->irq = irq;
 
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
@@ -518,7 +507,7 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->len_chanlist = 1;
 	s->range_table = board->ai_range_type;
 	s->insn_read = pcl711_ai_insn;
-	if (irq) {
+	if (dev->irq) {
 		dev->read_subdev = s;
 		s->subdev_flags |= SDF_CMD_READ;
 		s->do_cmdtest = pcl711_ai_cmdtest;
-- 
cgit 


From 95bb9414657bbf92e38b72440913a693c27e373c Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:36:17 -0700
Subject: staging: comedi: pcl711: remove PCL711_SIZE

This define is only used in the comedi_request_region() call. It doesn't
really add any clarity to the code so remove it and just open code the
value.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 45a8614fb2f6..173e6c639334 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -62,8 +62,6 @@ supported.
 #include "comedi_fc.h"
 #include "8253.h"
 
-#define PCL711_SIZE 16
-
 #define PCL711_CTR0 0
 #define PCL711_CTR1 1
 #define PCL711_CTR2 2
@@ -479,7 +477,7 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	int ret;
 	struct comedi_subdevice *s;
 
-	ret = comedi_request_region(dev, it->options[0], PCL711_SIZE);
+	ret = comedi_request_region(dev, it->options[0], 0x10);
 	if (ret)
 		return ret;
 
-- 
cgit 


From bca757ad539aa4f826f4d335f4fcc670e85dcc9b Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:36:44 -0700
Subject: staging: comedi: pcl711: tidy up the subdevice init

For aesthetic reasons, add some whitespace to the subdevice init.

The 's->len_chanlist' is only used with asynchronous command support.
Remove the unnecessary initialization of this member in the subdevices
that do not support commands. For the analog input subdevice, move
the initialization so it only occurs when commands are supported.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 74 ++++++++++++++++-----------------
 1 file changed, 35 insertions(+), 39 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 173e6c639334..9f48b02ae7f9 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -496,53 +496,49 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (!devpriv)
 		return -ENOMEM;
 
+	/* Analog Input subdevice */
 	s = &dev->subdevices[0];
-	/* AI subdevice */
-	s->type = COMEDI_SUBD_AI;
-	s->subdev_flags = SDF_READABLE | SDF_GROUND;
-	s->n_chan = board->n_aichan;
-	s->maxdata = 0xfff;
-	s->len_chanlist = 1;
-	s->range_table = board->ai_range_type;
-	s->insn_read = pcl711_ai_insn;
+	s->type		= COMEDI_SUBD_AI;
+	s->subdev_flags	= SDF_READABLE | SDF_GROUND;
+	s->n_chan	= board->n_aichan;
+	s->maxdata	= 0xfff;
+	s->range_table	= board->ai_range_type;
+	s->insn_read	= pcl711_ai_insn;
 	if (dev->irq) {
 		dev->read_subdev = s;
-		s->subdev_flags |= SDF_CMD_READ;
-		s->do_cmdtest = pcl711_ai_cmdtest;
-		s->do_cmd = pcl711_ai_cmd;
+		s->subdev_flags	|= SDF_CMD_READ;
+		s->len_chanlist	= 1;
+		s->do_cmdtest	= pcl711_ai_cmdtest;
+		s->do_cmd	= pcl711_ai_cmd;
 	}
 
+	/* Analog Output subdevice */
 	s = &dev->subdevices[1];
-	/* AO subdevice */
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = board->n_aochan;
-	s->maxdata = 0xfff;
-	s->len_chanlist = 1;
-	s->range_table = &range_bipolar5;
-	s->insn_write = pcl711_ao_insn;
-	s->insn_read = pcl711_ao_insn_read;
-
+	s->type		= COMEDI_SUBD_AO;
+	s->subdev_flags	= SDF_WRITABLE;
+	s->n_chan	= board->n_aochan;
+	s->maxdata	= 0xfff;
+	s->range_table	= &range_bipolar5;
+	s->insn_write	= pcl711_ao_insn;
+	s->insn_read	= pcl711_ao_insn_read;
+
+	/* Digital Input subdevice */
 	s = &dev->subdevices[2];
-	/* 16-bit digital input */
-	s->type = COMEDI_SUBD_DI;
-	s->subdev_flags = SDF_READABLE;
-	s->n_chan = 16;
-	s->maxdata = 1;
-	s->len_chanlist = 16;
-	s->range_table = &range_digital;
-	s->insn_bits = pcl711_di_insn_bits;
-
+	s->type		= COMEDI_SUBD_DI;
+	s->subdev_flags	= SDF_READABLE;
+	s->n_chan	= 16;
+	s->maxdata	= 1;
+	s->range_table	= &range_digital;
+	s->insn_bits	= pcl711_di_insn_bits;
+
+	/* Digital Output subdevice */
 	s = &dev->subdevices[3];
-	/* 16-bit digital out */
-	s->type = COMEDI_SUBD_DO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = 16;
-	s->maxdata = 1;
-	s->len_chanlist = 16;
-	s->range_table = &range_digital;
-	s->state = 0;
-	s->insn_bits = pcl711_do_insn_bits;
+	s->type		= COMEDI_SUBD_DO;
+	s->subdev_flags	= SDF_WRITABLE;
+	s->n_chan	= 16;
+	s->maxdata	= 1;
+	s->range_table	= &range_digital;
+	s->insn_bits	= pcl711_do_insn_bits;
 
 	/*
 	   this is the "base value" for the mode register, which is
-- 
cgit 


From b9a8bbf911450f3ef4a86e72afa1190cfed8217d Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:37:05 -0700
Subject: staging: comedi: pcl711: save the irq for the pcl711b only when used

Move the storing of the irq in the mode register for the pcl711b board
so it's only done when the irq is actually used by the driver.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 27 ++++++++++++++-------------
 1 file changed, 14 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 9f48b02ae7f9..c606052b05bd 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -474,8 +474,12 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 {
 	const struct pcl711_board *board = comedi_board(dev);
 	struct pcl711_private *devpriv;
-	int ret;
 	struct comedi_subdevice *s;
+	int ret;
+
+	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
+	if (!devpriv)
+		return -ENOMEM;
 
 	ret = comedi_request_region(dev, it->options[0], 0x10);
 	if (ret)
@@ -484,18 +488,22 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (it->options[1] && it->options[1] <= board->maxirq) {
 		ret = request_irq(it->options[1], pcl711_interrupt, 0,
 				  dev->board_name, dev);
-		if (ret == 0)
+		if (ret == 0) {
 			dev->irq = it->options[1];
+
+			/*
+			 * The PCL711b needs the irq number in the
+			 * mode register.
+			 */
+			if (board->is_pcl711b)
+				devpriv->mode = (dev->irq << 4);
+		}
 	}
 
 	ret = comedi_alloc_subdevices(dev, 4);
 	if (ret)
 		return ret;
 
-	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
-	if (!devpriv)
-		return -ENOMEM;
-
 	/* Analog Input subdevice */
 	s = &dev->subdevices[0];
 	s->type		= COMEDI_SUBD_AI;
@@ -540,13 +548,6 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->range_table	= &range_digital;
 	s->insn_bits	= pcl711_do_insn_bits;
 
-	/*
-	   this is the "base value" for the mode register, which is
-	   used for the irq on the PCL711
-	 */
-	if (board->is_pcl711b)
-		devpriv->mode = (dev->irq << 4);
-
 	/* clear DAC */
 	outb(0, dev->iobase + PCL711_DA0_LO);
 	outb(0, dev->iobase + PCL711_DA0_HI);
-- 
cgit 


From 8509e6d8ec091c394cfeeae5dc1eaeaec640463c Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:37:30 -0700
Subject: staging: comedi: pcl711: tidy up the register map defines

Add some whitespace to the register map defines to make the code
easier to read.

For aesthetics, convert all the values to hex. This is more common
in comedi drivers.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 41 ++++++++++++++++++---------------
 1 file changed, 22 insertions(+), 19 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index c606052b05bd..9b439cc8c869 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -62,25 +62,28 @@ supported.
 #include "comedi_fc.h"
 #include "8253.h"
 
-#define PCL711_CTR0 0
-#define PCL711_CTR1 1
-#define PCL711_CTR2 2
-#define PCL711_CTRCTL 3
-#define PCL711_AD_LO 4
-#define PCL711_DA0_LO 4
-#define PCL711_AD_HI 5
-#define PCL711_DA0_HI 5
-#define PCL711_DI_LO 6
-#define PCL711_DA1_LO 6
-#define PCL711_DI_HI 7
-#define PCL711_DA1_HI 7
-#define PCL711_CLRINTR 8
-#define PCL711_GAIN 9
-#define PCL711_MUX 10
-#define PCL711_MODE 11
-#define PCL711_SOFTTRIG 12
-#define PCL711_DO_LO 13
-#define PCL711_DO_HI 14
+/*
+ * I/O port register map
+ */
+#define PCL711_CTR0		0x00
+#define PCL711_CTR1		0x01
+#define PCL711_CTR2		0x02
+#define PCL711_CTRCTL		0x03
+#define PCL711_AD_LO		0x04
+#define PCL711_DA0_LO		0x04
+#define PCL711_AD_HI		0x05
+#define PCL711_DA0_HI		0x05
+#define PCL711_DI_LO		0x06
+#define PCL711_DA1_LO		0x06
+#define PCL711_DI_HI		0x07
+#define PCL711_DA1_HI		0x07
+#define PCL711_CLRINTR		0x08
+#define PCL711_GAIN		0x09
+#define PCL711_MUX		0x0a
+#define PCL711_MODE		0x0b
+#define PCL711_SOFTTRIG		0x0c
+#define PCL711_DO_LO		0x0d
+#define PCL711_DO_HI		0x0e
 
 static const struct comedi_lrange range_pcl711b_ai = {
 	5, {
-- 
cgit 


From 871b43cec94066cfbb457daa5f824de1f12330c0 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:38:09 -0700
Subject: staging: comedi: pcl711: tidy up pcl711_ao_insn()

For aesthetics, rename this function to help with greps.

Introduce a helper function to write the values to the analog
output channel registers. Modify the defines for the D/A registers
to avoid the ? : tests based on the chan number.

Only the final value written needs to be saved for read back.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 50 ++++++++++++++++-----------------
 1 file changed, 24 insertions(+), 26 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 9b439cc8c869..9e19fe91a47c 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -70,13 +70,11 @@ supported.
 #define PCL711_CTR2		0x02
 #define PCL711_CTRCTL		0x03
 #define PCL711_AD_LO		0x04
-#define PCL711_DA0_LO		0x04
 #define PCL711_AD_HI		0x05
-#define PCL711_DA0_HI		0x05
+#define PCL711_AO_LSB_REG(x)	(0x04 + ((x) * 2))
+#define PCL711_AO_MSB_REG(x)	(0x05 + ((x) * 2))
 #define PCL711_DI_LO		0x06
-#define PCL711_DA1_LO		0x06
 #define PCL711_DI_HI		0x07
-#define PCL711_DA1_HI		0x07
 #define PCL711_CLRINTR		0x08
 #define PCL711_GAIN		0x09
 #define PCL711_MUX		0x0a
@@ -405,26 +403,30 @@ static int pcl711_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	return 0;
 }
 
-/*
-   analog output
-*/
-static int pcl711_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s,
-			  struct comedi_insn *insn, unsigned int *data)
+static void pcl711_ao_write(struct comedi_device *dev,
+			    unsigned int chan, unsigned int val)
 {
-	struct pcl711_private *devpriv = dev->private;
-	int n;
-	int chan = CR_CHAN(insn->chanspec);
+	outb(val & 0xff, dev->iobase + PCL711_AO_LSB_REG(chan));
+	outb((val >> 8) & 0xff, dev->iobase + PCL711_AO_MSB_REG(chan));
+}
 
-	for (n = 0; n < insn->n; n++) {
-		outb((data[n] & 0xff),
-		     dev->iobase + (chan ? PCL711_DA1_LO : PCL711_DA0_LO));
-		outb((data[n] >> 8),
-		     dev->iobase + (chan ? PCL711_DA1_HI : PCL711_DA0_HI));
+static int pcl711_ao_insn_write(struct comedi_device *dev,
+				struct comedi_subdevice *s,
+				struct comedi_insn *insn,
+				unsigned int *data)
+{
+	struct pcl711_private *devpriv = dev->private;
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	unsigned int val = devpriv->ao_readback[chan];
+	int i;
 
-		devpriv->ao_readback[chan] = data[n];
+	for (i = 0; i < insn->n; i++) {
+		val = data[i];
+		pcl711_ao_write(dev, chan, val);
 	}
+	devpriv->ao_readback[chan] = val;
 
-	return n;
+	return insn->n;
 }
 
 static int pcl711_ao_insn_read(struct comedi_device *dev,
@@ -530,7 +532,7 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->n_chan	= board->n_aochan;
 	s->maxdata	= 0xfff;
 	s->range_table	= &range_bipolar5;
-	s->insn_write	= pcl711_ao_insn;
+	s->insn_write	= pcl711_ao_insn_write;
 	s->insn_read	= pcl711_ao_insn_read;
 
 	/* Digital Input subdevice */
@@ -552,12 +554,8 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->insn_bits	= pcl711_do_insn_bits;
 
 	/* clear DAC */
-	outb(0, dev->iobase + PCL711_DA0_LO);
-	outb(0, dev->iobase + PCL711_DA0_HI);
-	outb(0, dev->iobase + PCL711_DA1_LO);
-	outb(0, dev->iobase + PCL711_DA1_HI);
-
-	printk(KERN_INFO "\n");
+	pcl711_ao_write(dev, 0, 0x0);
+	pcl711_ao_write(dev, 1, 0x0);
 
 	return 0;
 }
-- 
cgit 


From dfb7567613e153f9def668b914100c13d84ea7f8 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:38:29 -0700
Subject: staging: comedi: pcl711: tidy up pcl711_ao_insn_read()

Tidy up this function to follow the normal form in comedi drivers.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 9e19fe91a47c..3a2e5f16d284 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -431,17 +431,17 @@ static int pcl711_ao_insn_write(struct comedi_device *dev,
 
 static int pcl711_ao_insn_read(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
+			       struct comedi_insn *insn,
+			       unsigned int *data)
 {
 	struct pcl711_private *devpriv = dev->private;
-	int n;
-	int chan = CR_CHAN(insn->chanspec);
-
-	for (n = 0; n < insn->n; n++)
-		data[n] = devpriv->ao_readback[chan];
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	int i;
 
-	return n;
+	for (i = 0; i < insn->n; i++)
+		data[i] = devpriv->ao_readback[chan];
 
+	return insn->n;
 }
 
 /* Digital port read - Untested on 8112 */
-- 
cgit 


From 8f394ee163f18d54abb7e47bf0f6f43ab59489d6 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:38:52 -0700
Subject: staging: comedi: pcl711: introduce pcl711_ai_get_sample()

Introduce a helper function to read the analog input data from the
hardware.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 32 +++++++++++++++++++-------------
 1 file changed, 19 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 3a2e5f16d284..255cfd16aa1c 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -69,8 +69,8 @@ supported.
 #define PCL711_CTR1		0x01
 #define PCL711_CTR2		0x02
 #define PCL711_CTRCTL		0x03
-#define PCL711_AD_LO		0x04
-#define PCL711_AD_HI		0x05
+#define PCL711_AI_LSB_REG	0x04
+#define PCL711_AI_MSB_REG	0x05
 #define PCL711_AO_LSB_REG(x)	(0x04 + ((x) * 2))
 #define PCL711_AO_MSB_REG(x)	(0x05 + ((x) * 2))
 #define PCL711_DI_LO		0x06
@@ -185,25 +185,33 @@ struct pcl711_private {
 	unsigned int divisor2;
 };
 
+static unsigned int pcl711_ai_get_sample(struct comedi_device *dev,
+					 struct comedi_subdevice *s)
+{
+	unsigned int val;
+
+	val = inb(dev->iobase + PCL711_AI_MSB_REG) << 8;
+	val |= inb(dev->iobase + PCL711_AI_LSB_REG);
+
+	return val & s->maxdata;
+}
+
 static irqreturn_t pcl711_interrupt(int irq, void *d)
 {
-	int lo, hi;
-	int data;
 	struct comedi_device *dev = d;
 	const struct pcl711_board *board = comedi_board(dev);
 	struct pcl711_private *devpriv = dev->private;
 	struct comedi_subdevice *s = &dev->subdevices[0];
+	unsigned int data;
 
 	if (!dev->attached) {
 		comedi_error(dev, "spurious interrupt");
 		return IRQ_HANDLED;
 	}
 
-	hi = inb(dev->iobase + PCL711_AD_HI);
-	lo = inb(dev->iobase + PCL711_AD_LO);
-	outb(0, dev->iobase + PCL711_CLRINTR);
+	data = pcl711_ai_get_sample(dev, s);
 
-	data = (hi << 8) | lo;
+	outb(0, dev->iobase + PCL711_CLRINTR);
 
 	/* FIXME! Nothing else sets ntrig! */
 	if (!(--devpriv->ntrig)) {
@@ -251,7 +259,7 @@ static int pcl711_ai_insn(struct comedi_device *dev, struct comedi_subdevice *s,
 {
 	const struct pcl711_board *board = comedi_board(dev);
 	int i, n;
-	int hi, lo;
+	int hi;
 
 	pcl711_set_changain(dev, insn->chanspec);
 
@@ -267,7 +275,7 @@ static int pcl711_ai_insn(struct comedi_device *dev, struct comedi_subdevice *s,
 
 		i = PCL711_TIMEOUT;
 		while (--i) {
-			hi = inb(dev->iobase + PCL711_AD_HI);
+			hi = inb(dev->iobase + PCL711_AI_MSB_REG);
 			if (!(hi & PCL711_DRDY))
 				goto ok;
 			udelay(1);
@@ -276,9 +284,7 @@ static int pcl711_ai_insn(struct comedi_device *dev, struct comedi_subdevice *s,
 		return -ETIME;
 
 ok:
-		lo = inb(dev->iobase + PCL711_AD_LO);
-
-		data[n] = ((hi & 0xf) << 8) | lo;
+		data[n] = pcl711_ai_get_sample(dev, s);
 	}
 
 	return n;
-- 
cgit 


From 8f494fe626b4733f407a6db62963f594cc8dbcf8 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:39:15 -0700
Subject: staging: comedi: pcl711: use dev->read_subdev in interrupt handler

The comedi_subdevice used in the interrupt handler is the dev->read_subdev
that was initialized during the attach of the board. Use that instead of
accessing the dev->subdevices array directly.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 255cfd16aa1c..7888781efcc9 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -201,7 +201,7 @@ static irqreturn_t pcl711_interrupt(int irq, void *d)
 	struct comedi_device *dev = d;
 	const struct pcl711_board *board = comedi_board(dev);
 	struct pcl711_private *devpriv = dev->private;
-	struct comedi_subdevice *s = &dev->subdevices[0];
+	struct comedi_subdevice *s = dev->read_subdev;
 	unsigned int data;
 
 	if (!dev->attached) {
-- 
cgit 


From dd89a8b60997eab41a1e92a618bd739535c58459 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:39:34 -0700
Subject: staging: comedi: pcl711: factor out the ai end-of-conversion wait

Factor out the analog input end-of-conversion wait to clarify the
pcl711_ai_insn() function a bit.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 39 +++++++++++++++++----------------
 1 file changed, 20 insertions(+), 19 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 7888781efcc9..aab3d731faa2 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -71,6 +71,7 @@ supported.
 #define PCL711_CTRCTL		0x03
 #define PCL711_AI_LSB_REG	0x04
 #define PCL711_AI_MSB_REG	0x05
+#define PCL711_AI_MSB_DRDY	(1 << 4)
 #define PCL711_AO_LSB_REG(x)	(0x04 + ((x) * 2))
 #define PCL711_AO_MSB_REG(x)	(0x05 + ((x) * 2))
 #define PCL711_DI_LO		0x06
@@ -124,13 +125,6 @@ static const struct comedi_lrange range_acl8112dg_ai = {
 	}
 };
 
-/*
- * flags
- */
-
-#define PCL711_TIMEOUT 100
-#define PCL711_DRDY 0x10
-
 static const int i8253_osc_base = 500;	/* 2 Mhz */
 
 struct pcl711_board {
@@ -254,12 +248,26 @@ static void pcl711_set_changain(struct comedi_device *dev, int chan)
 	}
 }
 
+static int pcl711_ai_wait_for_eoc(struct comedi_device *dev,
+				  unsigned int timeout)
+{
+	unsigned int msb;
+
+	while (timeout--) {
+		msb = inb(dev->iobase + PCL711_AI_MSB_REG);
+		if ((msb & PCL711_AI_MSB_DRDY) == 0)
+			return 0;
+		udelay(1);
+	}
+	return -ETIME;
+}
+
 static int pcl711_ai_insn(struct comedi_device *dev, struct comedi_subdevice *s,
 			  struct comedi_insn *insn, unsigned int *data)
 {
 	const struct pcl711_board *board = comedi_board(dev);
-	int i, n;
-	int hi;
+	int ret;
+	int n;
 
 	pcl711_set_changain(dev, insn->chanspec);
 
@@ -273,17 +281,10 @@ static int pcl711_ai_insn(struct comedi_device *dev, struct comedi_subdevice *s,
 		if (!board->is_8112)
 			outb(0, dev->iobase + PCL711_SOFTTRIG);
 
-		i = PCL711_TIMEOUT;
-		while (--i) {
-			hi = inb(dev->iobase + PCL711_AI_MSB_REG);
-			if (!(hi & PCL711_DRDY))
-				goto ok;
-			udelay(1);
-		}
-		printk(KERN_ERR "comedi%d: pcl711: A/D timeout\n", dev->minor);
-		return -ETIME;
+		ret = pcl711_ai_wait_for_eoc(dev, 100);
+		if (ret)
+			return ret;
 
-ok:
 		data[n] = pcl711_ai_get_sample(dev, s);
 	}
 
-- 
cgit 


From fe4489a5b2047c94ce0ce80b21e2aa3d4b657c0a Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:40:01 -0700
Subject: staging: comedi: pcl711: fix pcl711_set_changain()

Currently the board->is_8112 handling in this function does not write
the value to the mux register. Also, the value for channels >= 8 is
calculated incorrectly.

Define the magic numbers used with the mux register and fix the function
so 8112 boards work correctly.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 35 ++++++++++++++-------------------
 1 file changed, 15 insertions(+), 20 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index aab3d731faa2..8aa3d9264c12 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -78,7 +78,10 @@ supported.
 #define PCL711_DI_HI		0x07
 #define PCL711_CLRINTR		0x08
 #define PCL711_GAIN		0x09
-#define PCL711_MUX		0x0a
+#define PCL711_MUX_REG		0x0a
+#define PCL711_MUX_CHAN(x)	(((x) & 0xf) << 0)
+#define PCL711_MUX_CS0		(1 << 4)
+#define PCL711_MUX_CS1		(1 << 5)
 #define PCL711_MODE		0x0b
 #define PCL711_SOFTTRIG		0x0c
 #define PCL711_DO_LO		0x0d
@@ -220,32 +223,24 @@ static irqreturn_t pcl711_interrupt(int irq, void *d)
 	return IRQ_HANDLED;
 }
 
-static void pcl711_set_changain(struct comedi_device *dev, int chan)
+static void pcl711_set_changain(struct comedi_device *dev,
+				unsigned int chanspec)
 {
 	const struct pcl711_board *board = comedi_board(dev);
-	int chan_register;
+	unsigned int chan = CR_CHAN(chanspec);
+	unsigned int range = CR_RANGE(chanspec);
+	unsigned int mux = 0;
 
-	outb(CR_RANGE(chan), dev->iobase + PCL711_GAIN);
-
-	chan_register = CR_CHAN(chan);
+	outb(range, dev->iobase + PCL711_GAIN);
 
 	if (board->is_8112) {
-
-		/*
-		 *  Set the correct channel.  The two channel banks are switched
-		 *  using the mask value.
-		 *  NB: To use differential channels, you should use
-		 *  mask = 0x30, but I haven't written the support for this
-		 *  yet. /JJ
-		 */
-
-		if (chan_register >= 8)
-			chan_register = 0x20 | (chan_register & 0x7);
+		/* Select the correct MPC508A chip */
+		if (chan < 8)
+			mux |= PCL711_MUX_CS0;
 		else
-			chan_register |= 0x10;
-	} else {
-		outb(chan_register, dev->iobase + PCL711_MUX);
+			mux |= PCL711_MUX_CS1;
 	}
+	outb(mux | PCL711_MUX_CHAN(chan), dev->iobase + PCL711_MUX_REG);
 }
 
 static int pcl711_ai_wait_for_eoc(struct comedi_device *dev,
-- 
cgit 


From 08cd3e1684894e7d541ea92efb8756f7f43453a7 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:40:23 -0700
Subject: staging: comedi: pcl711: add differential input support for 8112
 boards

The ACL-8112 boards can do differential analog inputs. Add support for
this mode.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 8aa3d9264c12..1386d8f36031 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -82,6 +82,7 @@ supported.
 #define PCL711_MUX_CHAN(x)	(((x) & 0xf) << 0)
 #define PCL711_MUX_CS0		(1 << 4)
 #define PCL711_MUX_CS1		(1 << 5)
+#define PCL711_MUX_DIFF		(PCL711_MUX_CS0 | PCL711_MUX_CS1)
 #define PCL711_MODE		0x0b
 #define PCL711_SOFTTRIG		0x0c
 #define PCL711_DO_LO		0x0d
@@ -229,16 +230,22 @@ static void pcl711_set_changain(struct comedi_device *dev,
 	const struct pcl711_board *board = comedi_board(dev);
 	unsigned int chan = CR_CHAN(chanspec);
 	unsigned int range = CR_RANGE(chanspec);
+	unsigned int aref = CR_AREF(chanspec);
 	unsigned int mux = 0;
 
 	outb(range, dev->iobase + PCL711_GAIN);
 
 	if (board->is_8112) {
 		/* Select the correct MPC508A chip */
-		if (chan < 8)
-			mux |= PCL711_MUX_CS0;
-		else
-			mux |= PCL711_MUX_CS1;
+		if (aref == AREF_DIFF) {
+			chan &= 0x7;
+			mux |= PCL711_MUX_DIFF;
+		} else {
+			if (chan < 8)
+				mux |= PCL711_MUX_CS0;
+			else
+				mux |= PCL711_MUX_CS1;
+		}
 	}
 	outb(mux | PCL711_MUX_CHAN(chan), dev->iobase + PCL711_MUX_REG);
 }
@@ -515,6 +522,8 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s = &dev->subdevices[0];
 	s->type		= COMEDI_SUBD_AI;
 	s->subdev_flags	= SDF_READABLE | SDF_GROUND;
+	if (board->is_8112)
+		s->subdev_flags	|= SDF_DIFF;
 	s->n_chan	= board->n_aichan;
 	s->maxdata	= 0xfff;
 	s->range_table	= board->ai_range_type;
-- 
cgit 


From fd8b1b8c1632868f6be2c9edb5ddec8453b9b828 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:40:44 -0700
Subject: staging: comedi: pcl711: define the mode register magic numbers

Define the magic numbers used with the mode register.

For the PCL711B board, the mode register also contains the irq number
that is being used. Introduce a helper function to write to the mode
register so that this irq number is always included when needed.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 40 ++++++++++++++++++++-------------
 1 file changed, 24 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 1386d8f36031..1d0e4444a52c 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -83,7 +83,14 @@ supported.
 #define PCL711_MUX_CS0		(1 << 4)
 #define PCL711_MUX_CS1		(1 << 5)
 #define PCL711_MUX_DIFF		(PCL711_MUX_CS0 | PCL711_MUX_CS1)
-#define PCL711_MODE		0x0b
+#define PCL711_MODE_REG		0x0b
+#define PCL711_MODE_DEFAULT	(0 << 0)
+#define PCL711_MODE_SOFTTRIG	(1 << 0)
+#define PCL711_MODE_EXT		(2 << 0)
+#define PCL711_MODE_EXT_IRQ	(3 << 0)
+#define PCL711_MODE_PACER	(4 << 0)
+#define PCL711_MODE_PACER_IRQ	(6 << 0)
+#define PCL711_MODE_IRQ(x)	(((x) & 0x7) << 4)
 #define PCL711_SOFTTRIG		0x0c
 #define PCL711_DO_LO		0x0d
 #define PCL711_DO_HI		0x0e
@@ -183,6 +190,16 @@ struct pcl711_private {
 	unsigned int divisor2;
 };
 
+static void pcl711_ai_set_mode(struct comedi_device *dev, unsigned int mode)
+{
+	struct pcl711_private *devpriv = dev->private;
+
+	if (mode == PCL711_MODE_EXT_IRQ || mode == PCL711_MODE_PACER_IRQ)
+		mode |= devpriv->mode;
+
+	outb(mode, dev->iobase + PCL711_MODE_REG);
+}
+
 static unsigned int pcl711_ai_get_sample(struct comedi_device *dev,
 					 struct comedi_subdevice *s)
 {
@@ -214,9 +231,9 @@ static irqreturn_t pcl711_interrupt(int irq, void *d)
 	/* FIXME! Nothing else sets ntrig! */
 	if (!(--devpriv->ntrig)) {
 		if (board->is_8112)
-			outb(1, dev->iobase + PCL711_MODE);
+			pcl711_ai_set_mode(dev, PCL711_MODE_SOFTTRIG);
 		else
-			outb(0, dev->iobase + PCL711_MODE);
+			pcl711_ai_set_mode(dev, PCL711_MODE_DEFAULT);
 
 		s->async->events |= COMEDI_CB_EOA;
 	}
@@ -274,11 +291,7 @@ static int pcl711_ai_insn(struct comedi_device *dev, struct comedi_subdevice *s,
 	pcl711_set_changain(dev, insn->chanspec);
 
 	for (n = 0; n < insn->n; n++) {
-		/*
-		 *  Write the correct mode (software polling) and start polling
-		 *  by writing to the trigger register
-		 */
-		outb(1, dev->iobase + PCL711_MODE);
+		pcl711_ai_set_mode(dev, PCL711_MODE_SOFTTRIG);
 
 		if (!board->is_8112)
 			outb(0, dev->iobase + PCL711_SOFTTRIG);
@@ -368,7 +381,6 @@ static int pcl711_ai_cmdtest(struct comedi_device *dev,
 
 static int pcl711_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 {
-	struct pcl711_private *devpriv = dev->private;
 	int timer1, timer2;
 	struct comedi_cmd *cmd = &s->async->cmd;
 
@@ -400,13 +412,9 @@ static int pcl711_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		/* clear pending interrupts (just in case) */
 		outb(0, dev->iobase + PCL711_CLRINTR);
 
-		/*
-		 *  Set mode to IRQ transfer
-		 */
-		outb(devpriv->mode | 6, dev->iobase + PCL711_MODE);
+		pcl711_ai_set_mode(dev, PCL711_MODE_PACER_IRQ);
 	} else {
-		/* external trigger */
-		outb(devpriv->mode | 3, dev->iobase + PCL711_MODE);
+		pcl711_ai_set_mode(dev, PCL711_MODE_EXT_IRQ);
 	}
 
 	return 0;
@@ -510,7 +518,7 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			 * mode register.
 			 */
 			if (board->is_pcl711b)
-				devpriv->mode = (dev->irq << 4);
+				devpriv->mode = PCL711_MODE_IRQ(dev->irq);
 		}
 	}
 
-- 
cgit 


From 075eaef87ee880dbfed2bd3a8ff0ece1b05cdacf Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:41:09 -0700
Subject: staging: comedi: pcl711: remove unnecessary test of 'board->is_8112'

At the end of an asynchronous command, the analog input is returned
to software triggered mode. For the non-8112 style boards the mode
PCL711_MODE_DEFAULT and PCL711_MODE_SOFTTRIG are identical. Just set
the mode to PCL711_MODE_SOFTTRIG and remove the test.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 1d0e4444a52c..945e0bc111fb 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -214,7 +214,6 @@ static unsigned int pcl711_ai_get_sample(struct comedi_device *dev,
 static irqreturn_t pcl711_interrupt(int irq, void *d)
 {
 	struct comedi_device *dev = d;
-	const struct pcl711_board *board = comedi_board(dev);
 	struct pcl711_private *devpriv = dev->private;
 	struct comedi_subdevice *s = dev->read_subdev;
 	unsigned int data;
@@ -230,10 +229,7 @@ static irqreturn_t pcl711_interrupt(int irq, void *d)
 
 	/* FIXME! Nothing else sets ntrig! */
 	if (!(--devpriv->ntrig)) {
-		if (board->is_8112)
-			pcl711_ai_set_mode(dev, PCL711_MODE_SOFTTRIG);
-		else
-			pcl711_ai_set_mode(dev, PCL711_MODE_DEFAULT);
+		pcl711_ai_set_mode(dev, PCL711_MODE_SOFTTRIG);
 
 		s->async->events |= COMEDI_CB_EOA;
 	}
-- 
cgit 


From 1c4babb2464d0af65ebc0165d2a93ac9f7b9554b Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:41:39 -0700
Subject: staging: comedi: pcl711: fix software trigger for board->is_8112

The acl-8112 boards also need to write a value to the software
trigger register in order to start an A/D conversion. Remove the
if (!board->is_8112) test so that the write is always done.

Also, the analog input mode does not need to be set each time for
multiple samples. Move the pcl711_ai_set_mode() out of the for loop.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 945e0bc111fb..f8401b738f1a 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -91,7 +91,8 @@ supported.
 #define PCL711_MODE_PACER	(4 << 0)
 #define PCL711_MODE_PACER_IRQ	(6 << 0)
 #define PCL711_MODE_IRQ(x)	(((x) & 0x7) << 4)
-#define PCL711_SOFTTRIG		0x0c
+#define PCL711_SOFTTRIG_REG	0x0c
+#define PCL711_SOFTTRIG		(0 << 0)  /* any value will work */
 #define PCL711_DO_LO		0x0d
 #define PCL711_DO_HI		0x0e
 
@@ -280,17 +281,15 @@ static int pcl711_ai_wait_for_eoc(struct comedi_device *dev,
 static int pcl711_ai_insn(struct comedi_device *dev, struct comedi_subdevice *s,
 			  struct comedi_insn *insn, unsigned int *data)
 {
-	const struct pcl711_board *board = comedi_board(dev);
 	int ret;
 	int n;
 
 	pcl711_set_changain(dev, insn->chanspec);
 
-	for (n = 0; n < insn->n; n++) {
-		pcl711_ai_set_mode(dev, PCL711_MODE_SOFTTRIG);
+	pcl711_ai_set_mode(dev, PCL711_MODE_SOFTTRIG);
 
-		if (!board->is_8112)
-			outb(0, dev->iobase + PCL711_SOFTTRIG);
+	for (n = 0; n < insn->n; n++) {
+		outb(PCL711_SOFTTRIG, dev->iobase + PCL711_SOFTTRIG_REG);
 
 		ret = pcl711_ai_wait_for_eoc(dev, 100);
 		if (ret)
-- 
cgit 


From 95bee441c901277c2082e09b44a83d4cf57c179c Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:41:57 -0700
Subject: staging: comedi: pcl711: tidy up pcl711_ai_insn()

For aesthetic reasons, rename this function to help with greps.

Tidy up the function a bit to follow the comedi driver norm.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index f8401b738f1a..837505935277 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -278,27 +278,29 @@ static int pcl711_ai_wait_for_eoc(struct comedi_device *dev,
 	return -ETIME;
 }
 
-static int pcl711_ai_insn(struct comedi_device *dev, struct comedi_subdevice *s,
-			  struct comedi_insn *insn, unsigned int *data)
+static int pcl711_ai_insn_read(struct comedi_device *dev,
+			       struct comedi_subdevice *s,
+			       struct comedi_insn *insn,
+			       unsigned int *data)
 {
 	int ret;
-	int n;
+	int i;
 
 	pcl711_set_changain(dev, insn->chanspec);
 
 	pcl711_ai_set_mode(dev, PCL711_MODE_SOFTTRIG);
 
-	for (n = 0; n < insn->n; n++) {
+	for (i = 0; i < insn->n; i++) {
 		outb(PCL711_SOFTTRIG, dev->iobase + PCL711_SOFTTRIG_REG);
 
 		ret = pcl711_ai_wait_for_eoc(dev, 100);
 		if (ret)
 			return ret;
 
-		data[n] = pcl711_ai_get_sample(dev, s);
+		data[i] = pcl711_ai_get_sample(dev, s);
 	}
 
-	return n;
+	return insn->n;
 }
 
 static int pcl711_ai_cmdtest(struct comedi_device *dev,
@@ -530,7 +532,7 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->n_chan	= board->n_aichan;
 	s->maxdata	= 0xfff;
 	s->range_table	= board->ai_range_type;
-	s->insn_read	= pcl711_ai_insn;
+	s->insn_read	= pcl711_ai_insn_read;
 	if (dev->irq) {
 		dev->read_subdev = s;
 		s->subdev_flags	|= SDF_CMD_READ;
-- 
cgit 


From 54f0db981a7f6398ab688c5ac5359a12816c0a66 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:42:27 -0700
Subject: staging: comedi: pcl711: remove 'is_8112' from boardinfo

This member in the boardinfo is redundant. All the 8112 style boards
have > 8 analog input channels (16 actually). We can use that information
instead and remove the extra boardinfo.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 837505935277..fd72a536f5e6 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -142,7 +142,6 @@ static const int i8253_osc_base = 500;	/* 2 Mhz */
 struct pcl711_board {
 	const char *name;
 	unsigned int is_pcl711b:1;
-	unsigned int is_8112:1;
 	int n_aichan;
 	int n_aochan;
 	int maxirq;
@@ -164,14 +163,12 @@ static const struct pcl711_board boardtypes[] = {
 		.ai_range_type	= &range_pcl711b_ai,
 	}, {
 		.name		= "acl8112hg",
-		.is_8112	= 1,
 		.n_aichan	= 16,
 		.n_aochan	= 2,
 		.maxirq		= 15,
 		.ai_range_type	= &range_acl8112hg_ai,
 	}, {
 		.name		= "acl8112dg",
-		.is_8112	= 1,
 		.n_aichan	= 16,
 		.n_aochan	= 2,
 		.maxirq		= 15,
@@ -239,9 +236,9 @@ static irqreturn_t pcl711_interrupt(int irq, void *d)
 }
 
 static void pcl711_set_changain(struct comedi_device *dev,
+				struct comedi_subdevice *s,
 				unsigned int chanspec)
 {
-	const struct pcl711_board *board = comedi_board(dev);
 	unsigned int chan = CR_CHAN(chanspec);
 	unsigned int range = CR_RANGE(chanspec);
 	unsigned int aref = CR_AREF(chanspec);
@@ -249,7 +246,7 @@ static void pcl711_set_changain(struct comedi_device *dev,
 
 	outb(range, dev->iobase + PCL711_GAIN);
 
-	if (board->is_8112) {
+	if (s->n_chan > 8) {
 		/* Select the correct MPC508A chip */
 		if (aref == AREF_DIFF) {
 			chan &= 0x7;
@@ -286,7 +283,7 @@ static int pcl711_ai_insn_read(struct comedi_device *dev,
 	int ret;
 	int i;
 
-	pcl711_set_changain(dev, insn->chanspec);
+	pcl711_set_changain(dev, s, insn->chanspec);
 
 	pcl711_ai_set_mode(dev, PCL711_MODE_SOFTTRIG);
 
@@ -381,7 +378,7 @@ static int pcl711_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	int timer1, timer2;
 	struct comedi_cmd *cmd = &s->async->cmd;
 
-	pcl711_set_changain(dev, cmd->chanlist[0]);
+	pcl711_set_changain(dev, s, cmd->chanlist[0]);
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		/*
@@ -527,7 +524,7 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s = &dev->subdevices[0];
 	s->type		= COMEDI_SUBD_AI;
 	s->subdev_flags	= SDF_READABLE | SDF_GROUND;
-	if (board->is_8112)
+	if (board->n_aichan > 8)
 		s->subdev_flags	|= SDF_DIFF;
 	s->n_chan	= board->n_aichan;
 	s->maxdata	= 0xfff;
-- 
cgit 


From 0fd8ebea1b6f251442801bb5cdf665a56f8d45b2 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:42:52 -0700
Subject: staging: comedi: pcl711: remove 'is_pcl711b' from boardinfo

This member in the board info is used to indicate if the board is
a PCL711B. This board uses bits in the mode register to select the
IRQ used for interrupts. These bits do nothing on the other boards
supported by this driver.

Remove the 'is_pcl711b' variable from the boardinfo. Also, remove
the 'mode' variable from the private data and just calculate the
mode bits when needed.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 25 ++++++++++---------------
 1 file changed, 10 insertions(+), 15 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index fd72a536f5e6..4b5da611c695 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -141,7 +141,6 @@ static const int i8253_osc_base = 500;	/* 2 Mhz */
 
 struct pcl711_board {
 	const char *name;
-	unsigned int is_pcl711b:1;
 	int n_aichan;
 	int n_aochan;
 	int maxirq;
@@ -156,7 +155,6 @@ static const struct pcl711_board boardtypes[] = {
 		.ai_range_type	= &range_bipolar5,
 	}, {
 		.name		= "pcl711b",
-		.is_pcl711b	= 1,
 		.n_aichan	= 8,
 		.n_aochan	= 1,
 		.maxirq		= 7,
@@ -182,7 +180,6 @@ struct pcl711_private {
 	int adchan;
 	int ntrig;
 	int aip[8];
-	int mode;
 	unsigned int ao_readback[2];
 	unsigned int divisor1;
 	unsigned int divisor2;
@@ -190,10 +187,16 @@ struct pcl711_private {
 
 static void pcl711_ai_set_mode(struct comedi_device *dev, unsigned int mode)
 {
-	struct pcl711_private *devpriv = dev->private;
-
+	/*
+	 * The pcl711b board uses bits in the mode register to select the
+	 * interrupt. The other boards supported by this driver all use
+	 * jumpers on the board.
+	 *
+	 * Enables the interrupt when needed on the pcl711b board. These
+	 * bits do nothing on the other boards.
+	 */
 	if (mode == PCL711_MODE_EXT_IRQ || mode == PCL711_MODE_PACER_IRQ)
-		mode |= devpriv->mode;
+		mode |= PCL711_MODE_IRQ(dev->irq);
 
 	outb(mode, dev->iobase + PCL711_MODE_REG);
 }
@@ -504,16 +507,8 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (it->options[1] && it->options[1] <= board->maxirq) {
 		ret = request_irq(it->options[1], pcl711_interrupt, 0,
 				  dev->board_name, dev);
-		if (ret == 0) {
+		if (ret == 0)
 			dev->irq = it->options[1];
-
-			/*
-			 * The PCL711b needs the irq number in the
-			 * mode register.
-			 */
-			if (board->is_pcl711b)
-				devpriv->mode = PCL711_MODE_IRQ(dev->irq);
-		}
 	}
 
 	ret = comedi_alloc_subdevices(dev, 4);
-- 
cgit 


From 98c6ccd0091b0d8898e5d60be931ded3d680861a Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:43:11 -0700
Subject: staging: comedi: pcl711: remove unused private data members

Remove all the private data variables that are not used by the driver.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 4b5da611c695..55a2b7851c6f 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -175,11 +175,7 @@ static const struct pcl711_board boardtypes[] = {
 };
 
 struct pcl711_private {
-
-	int board;
-	int adchan;
 	int ntrig;
-	int aip[8];
 	unsigned int ao_readback[2];
 	unsigned int divisor1;
 	unsigned int divisor2;
-- 
cgit 


From 7bd0573bec697902db98c39d2934270c009b57ef Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:43:29 -0700
Subject: staging: comedi: pcl711: use 8253.h helper to set the timers

To better document the code, use the i8254_load() helper to set the
timers instead of doing the outb() instructions.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 25 +++++--------------------
 1 file changed, 5 insertions(+), 20 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 55a2b7851c6f..8aa7b0e182c0 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -65,10 +65,7 @@ supported.
 /*
  * I/O port register map
  */
-#define PCL711_CTR0		0x00
-#define PCL711_CTR1		0x01
-#define PCL711_CTR2		0x02
-#define PCL711_CTRCTL		0x03
+#define PCL711_TIMER_BASE	0x00
 #define PCL711_AI_LSB_REG	0x04
 #define PCL711_AI_MSB_REG	0x05
 #define PCL711_AI_MSB_DRDY	(1 << 4)
@@ -380,27 +377,15 @@ static int pcl711_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	pcl711_set_changain(dev, s, cmd->chanlist[0]);
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
-		/*
-		 *  Set timers
-		 *      timer chip is an 8253, with timers 1 and 2
-		 *      cascaded
-		 *  0x74 = Select Counter 1 | LSB/MSB | Mode=2 | Binary
-		 *        Mode 2 = Rate generator
-		 *
-		 *  0xb4 = Select Counter 2 | LSB/MSB | Mode=2 | Binary
-		 */
-
 		timer1 = timer2 = 0;
 		i8253_cascade_ns_to_timer(i8253_osc_base, &timer1, &timer2,
 					  &cmd->scan_begin_arg,
 					  TRIG_ROUND_NEAREST);
 
-		outb(0x74, dev->iobase + PCL711_CTRCTL);
-		outb(timer1 & 0xff, dev->iobase + PCL711_CTR1);
-		outb((timer1 >> 8) & 0xff, dev->iobase + PCL711_CTR1);
-		outb(0xb4, dev->iobase + PCL711_CTRCTL);
-		outb(timer2 & 0xff, dev->iobase + PCL711_CTR2);
-		outb((timer2 >> 8) & 0xff, dev->iobase + PCL711_CTR2);
+		i8254_load(dev->iobase + PCL711_TIMER_BASE, 0,
+			   1, timer1, I8254_MODE2 | I8254_BINARY);
+		i8254_load(dev->iobase + PCL711_TIMER_BASE, 0,
+			   2, timer2, I8254_MODE2 | I8254_BINARY);
 
 		/* clear pending interrupts (just in case) */
 		outb(0, dev->iobase + PCL711_CLRINTR);
-- 
cgit 


From 326d875da33b2b72e409868681c76d6863fd191b Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:43:47 -0700
Subject: staging: comedi: pcl711: remove 'i8253_osc_base'

This static const int variable is only used one place in the code.
Remove it and just open code the value.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 8aa7b0e182c0..8f068ebc7609 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -134,8 +134,6 @@ static const struct comedi_lrange range_acl8112dg_ai = {
 	}
 };
 
-static const int i8253_osc_base = 500;	/* 2 Mhz */
-
 struct pcl711_board {
 	const char *name;
 	int n_aichan;
@@ -378,7 +376,8 @@ static int pcl711_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		timer1 = timer2 = 0;
-		i8253_cascade_ns_to_timer(i8253_osc_base, &timer1, &timer2,
+		i8253_cascade_ns_to_timer(500,		/* 2 Mhz */
+					  &timer1, &timer2,
 					  &cmd->scan_begin_arg,
 					  TRIG_ROUND_NEAREST);
 
-- 
cgit 


From 8fbf1f4569634e950c1ebc46b0bad612ea404b00 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:44:08 -0700
Subject: staging: comedi: pcl711: no need to calc the timer values twice

The comedi core always calls the (*do_cmdtest) function to validate
a command before it calls the (*do_cmd) function.

Since the (*do_cmdtest) has already calculated the timer values in
order to validate the cmd->scan_begin_arg there is no reason to
recalc the values in the (*do_cmd).

This also fixes a bug in the driver. The (*do_cmdtest) was using a
time base value of 100 and but the (*do_cmd) was using a time base
of 500. These result in different timer values. The functions used
to calculate the values are actually the same due to a #define in
the 8253.h header.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 23 ++++++++---------------
 1 file changed, 8 insertions(+), 15 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 8f068ebc7609..60b713719560 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -331,7 +331,6 @@ static int pcl711_ai_cmdtest(struct comedi_device *dev,
 		err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
 	} else {
 #define MAX_SPEED 1000
-#define TIMER_BASE 100
 		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
 						 MAX_SPEED);
 	}
@@ -352,11 +351,11 @@ static int pcl711_ai_cmdtest(struct comedi_device *dev,
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		tmp = cmd->scan_begin_arg;
-		i8253_cascade_ns_to_timer_2div(TIMER_BASE,
-					       &devpriv->divisor1,
-					       &devpriv->divisor2,
-					       &cmd->scan_begin_arg,
-					       cmd->flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(500,		/* 2 Mhz */
+					  &devpriv->divisor1,
+					  &devpriv->divisor2,
+					  &cmd->scan_begin_arg,
+					  cmd->flags & TRIG_ROUND_MASK);
 		if (tmp != cmd->scan_begin_arg)
 			err++;
 	}
@@ -369,22 +368,16 @@ static int pcl711_ai_cmdtest(struct comedi_device *dev,
 
 static int pcl711_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 {
-	int timer1, timer2;
+	struct pcl711_private *devpriv = dev->private;
 	struct comedi_cmd *cmd = &s->async->cmd;
 
 	pcl711_set_changain(dev, s, cmd->chanlist[0]);
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
-		timer1 = timer2 = 0;
-		i8253_cascade_ns_to_timer(500,		/* 2 Mhz */
-					  &timer1, &timer2,
-					  &cmd->scan_begin_arg,
-					  TRIG_ROUND_NEAREST);
-
 		i8254_load(dev->iobase + PCL711_TIMER_BASE, 0,
-			   1, timer1, I8254_MODE2 | I8254_BINARY);
+			   1, devpriv->divisor1, I8254_MODE2 | I8254_BINARY);
 		i8254_load(dev->iobase + PCL711_TIMER_BASE, 0,
-			   2, timer2, I8254_MODE2 | I8254_BINARY);
+			   2, devpriv->divisor2, I8254_MODE2 | I8254_BINARY);
 
 		/* clear pending interrupts (just in case) */
 		outb(0, dev->iobase + PCL711_CLRINTR);
-- 
cgit 


From 102e95cd2a2dda090c836af23b85028b0bef2904 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:44:28 -0700
Subject: staging: comedi: pcl711: rename some of the register map defines

Rename some of the register map defines so they all have the same
format. Add a couple new defines to tidy up some of the magic
numbers used with the registers.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 37 +++++++++++++++++++--------------
 1 file changed, 21 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 60b713719560..86a71c952505 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -71,10 +71,12 @@ supported.
 #define PCL711_AI_MSB_DRDY	(1 << 4)
 #define PCL711_AO_LSB_REG(x)	(0x04 + ((x) * 2))
 #define PCL711_AO_MSB_REG(x)	(0x05 + ((x) * 2))
-#define PCL711_DI_LO		0x06
-#define PCL711_DI_HI		0x07
-#define PCL711_CLRINTR		0x08
-#define PCL711_GAIN		0x09
+#define PCL711_DI_LSB_REG	0x06
+#define PCL711_DI_MSB_REG	0x07
+#define PCL711_INT_STAT_REG	0x08
+#define PCL711_INT_STAT_CLR	(0 << 0)  /* any value will work */
+#define PCL711_AI_GAIN_REG	0x09
+#define PCL711_AI_GAIN(x)	(((x) & 0xf) << 0)
 #define PCL711_MUX_REG		0x0a
 #define PCL711_MUX_CHAN(x)	(((x) & 0xf) << 0)
 #define PCL711_MUX_CS0		(1 << 4)
@@ -90,8 +92,8 @@ supported.
 #define PCL711_MODE_IRQ(x)	(((x) & 0x7) << 4)
 #define PCL711_SOFTTRIG_REG	0x0c
 #define PCL711_SOFTTRIG		(0 << 0)  /* any value will work */
-#define PCL711_DO_LO		0x0d
-#define PCL711_DO_HI		0x0e
+#define PCL711_DO_LSB_REG	0x0d
+#define PCL711_DO_MSB_REG	0x0e
 
 static const struct comedi_lrange range_pcl711b_ai = {
 	5, {
@@ -217,7 +219,7 @@ static irqreturn_t pcl711_interrupt(int irq, void *d)
 
 	data = pcl711_ai_get_sample(dev, s);
 
-	outb(0, dev->iobase + PCL711_CLRINTR);
+	outb(PCL711_INT_STAT_CLR, dev->iobase + PCL711_INT_STAT_REG);
 
 	/* FIXME! Nothing else sets ntrig! */
 	if (!(--devpriv->ntrig)) {
@@ -238,7 +240,7 @@ static void pcl711_set_changain(struct comedi_device *dev,
 	unsigned int aref = CR_AREF(chanspec);
 	unsigned int mux = 0;
 
-	outb(range, dev->iobase + PCL711_GAIN);
+	outb(PCL711_AI_GAIN(range), dev->iobase + PCL711_AI_GAIN_REG);
 
 	if (s->n_chan > 8) {
 		/* Select the correct MPC508A chip */
@@ -379,8 +381,7 @@ static int pcl711_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		i8254_load(dev->iobase + PCL711_TIMER_BASE, 0,
 			   2, devpriv->divisor2, I8254_MODE2 | I8254_BINARY);
 
-		/* clear pending interrupts (just in case) */
-		outb(0, dev->iobase + PCL711_CLRINTR);
+		outb(PCL711_INT_STAT_CLR, dev->iobase + PCL711_INT_STAT_REG);
 
 		pcl711_ai_set_mode(dev, PCL711_MODE_PACER_IRQ);
 	} else {
@@ -431,13 +432,17 @@ static int pcl711_ao_insn_read(struct comedi_device *dev,
 	return insn->n;
 }
 
-/* Digital port read - Untested on 8112 */
 static int pcl711_di_insn_bits(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
+			       struct comedi_insn *insn,
+			       unsigned int *data)
 {
-	data[1] = inb(dev->iobase + PCL711_DI_LO) |
-	    (inb(dev->iobase + PCL711_DI_HI) << 8);
+	unsigned int val;
+
+	val = inb(dev->iobase + PCL711_DI_LSB_REG);
+	val |= (inb(dev->iobase + PCL711_DI_MSB_REG) << 8);
+
+	data[1] = val;
 
 	return insn->n;
 }
@@ -452,9 +457,9 @@ static int pcl711_do_insn_bits(struct comedi_device *dev,
 	mask = comedi_dio_update_state(s, data);
 	if (mask) {
 		if (mask & 0x00ff)
-			outb(s->state & 0xff, dev->iobase + PCL711_DO_LO);
+			outb(s->state & 0xff, dev->iobase + PCL711_DO_LSB_REG);
 		if (mask & 0xff00)
-			outb((s->state >> 8), dev->iobase + PCL711_DO_HI);
+			outb((s->state >> 8), dev->iobase + PCL711_DO_MSB_REG);
 	}
 
 	data[1] = s->state;
-- 
cgit 


From 34833558efbcbec458538c2fe7e4a1626d0656c9 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:44:46 -0700
Subject: staging: comedi: pcl711: tidy up multi line comments

Tidy up the multi line comments to follow the CodingStyle.

Remove the multi line comment about an alternate driver for the
PCL-711. The http address does not work and the driver history
in the comment is unnecessary.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 82 +++++++++++++--------------------
 1 file changed, 33 insertions(+), 49 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 86a71c952505..18cae165f011 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -1,56 +1,40 @@
 /*
-   comedi/drivers/pcl711.c
-   hardware driver for PC-LabCard PCL-711 and AdSys ACL-8112
-   and compatibles
-
-   COMEDI - Linux Control and Measurement Device Interface
-   Copyright (C) 1998 David A. Schleef <ds@schleef.org>
-   Janne Jalkanen <jalkanen@cs.hut.fi>
-   Eric Bunn <ebu@cs.hut.fi>
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
-   (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
+ * pcl711.c
+ * Comedi driver for PC-LabCard PCL-711 and AdSys ACL-8112 and compatibles
+ * Copyright (C) 1998 David A. Schleef <ds@schleef.org>
+ *		      Janne Jalkanen <jalkanen@cs.hut.fi>
+ *		      Eric Bunn <ebu@cs.hut.fi>
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 1998 David A. Schleef <ds@schleef.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
  */
-/*
-Driver: pcl711
-Description: Advantech PCL-711 and 711b, ADLink ACL-8112
-Author: ds, Janne Jalkanen <jalkanen@cs.hut.fi>, Eric Bunn <ebu@cs.hut.fi>
-Status: mostly complete
-Devices: [Advantech] PCL-711 (pcl711), PCL-711B (pcl711b),
-  [AdLink] ACL-8112HG (acl8112hg), ACL-8112DG (acl8112dg)
-
-Since these boards do not have DMA or FIFOs, only immediate mode is
-supported.
-
-*/
 
 /*
-   Dave Andruczyk <dave@tech.buffalostate.edu> also wrote a
-   driver for the PCL-711.  I used a few ideas from his driver
-   here.  His driver also has more comments, if you are
-   interested in understanding how this driver works.
-   http://tech.buffalostate.edu/~dave/driver/
-
-   The ACL-8112 driver was hacked from the sources of the PCL-711
-   driver (the 744 chip used on the 8112 is almost the same as
-   the 711b chip, but it has more I/O channels) by
-   Janne Jalkanen (jalkanen@cs.hut.fi) and
-   Erik Bunn (ebu@cs.hut.fi).  Remerged with the PCL-711 driver
-   by ds.
-
-   [acl-8112]
-   This driver supports both TRIGNOW and TRIGCLK,
-   but does not yet support DMA transfers.  It also supports
-   both high (HG) and low (DG) versions of the card, though
-   the HG version has been untested.
-
+ * Driver: pcl711
+ * Description: Advantech PCL-711 and 711b, ADLink ACL-8112
+ * Devices: (Advantech) PCL-711 [pcl711]
+ *	    (Advantech) PCL-711B [pcl711b]
+ *	    (AdLink) ACL-8112HG [acl8112hg]
+ *	    (AdLink) ACL-8112DG [acl8112dg]
+ * Author: David A. Schleef <ds@schleef.org>
+ *	   Janne Jalkanen <jalkanen@cs.hut.fi>
+ *	   Eric Bunn <ebu@cs.hut.fi>
+ * Updated:
+ * Status: mostly complete
+ *
+ * Configuration Options:
+ *   [0] - I/O port base
+ *   [1] - IRQ, optional
  */
 
 #include <linux/module.h>
-- 
cgit 


From 014e0dbd2579ec90ba67623a1a14133b946e7cf0 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:45:03 -0700
Subject: staging: comedi: pcl711: reorder includes

For aesthetics, reorder the includes a bit.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 18cae165f011..cadde7af2710 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -38,10 +38,10 @@
  */
 
 #include <linux/module.h>
+#include <linux/delay.h>
 #include <linux/interrupt.h>
-#include "../comedidev.h"
 
-#include <linux/delay.h>
+#include "../comedidev.h"
 
 #include "comedi_fc.h"
 #include "8253.h"
-- 
cgit 


From 05557445183ed853db8f3792e2a686ac71f126aa Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Fri, 20 Sep 2013 16:45:22 -0700
Subject: staging: comedi: pcl711: change MODULE_DESCRIPTION

Change the MODULE_DESCRIPTION to something useful instead of the
generic "Comedi low-level driver".

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index cadde7af2710..eb800bef8852 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -542,5 +542,5 @@ static struct comedi_driver pcl711_driver = {
 module_comedi_driver(pcl711_driver);
 
 MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
+MODULE_DESCRIPTION("Comedi driver for PCL-711 compatible boards");
 MODULE_LICENSE("GPL");
-- 
cgit 


From bd950799d9510cac994fad2ea020767fe878b84b Mon Sep 17 00:00:00 2001
From: Lan Tianyu <tianyu.lan@intel.com>
Date: Tue, 24 Sep 2013 18:11:48 -0600
Subject: PCI: acpiphp: Convert to dynamic debug

This patch is to use pr_debug/info/warn/err to replace acpiphp debug
functions and remove module's debug param.

User interface change: before this patch, boot with the "acpiphp.debug"
kernel parameter to turn on debug.  After this patch, set
CONFIG_DYNAMIC_DEBUG=y and boot with "acpiphp.dyndebug=+p" instead.
See Documentation/dynamic-debug-howto.txt.

[bhelgaas: changelog]
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/hotplug/acpiphp.h      | 10 ----------
 drivers/pci/hotplug/acpiphp_core.c | 37 ++++++++++++++++++-------------------
 drivers/pci/hotplug/acpiphp_glue.c | 23 ++++++++++++-----------
 3 files changed, 30 insertions(+), 40 deletions(-)

diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h
index f4e028924667..26100f510b10 100644
--- a/drivers/pci/hotplug/acpiphp.h
+++ b/drivers/pci/hotplug/acpiphp.h
@@ -39,16 +39,6 @@
 #include <linux/mutex.h>
 #include <linux/pci_hotplug.h>
 
-#define dbg(format, arg...)					\
-	do {							\
-		if (acpiphp_debug)				\
-			printk(KERN_DEBUG "%s: " format,	\
-				MY_NAME , ## arg);		\
-	} while (0)
-#define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg)
-#define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
-#define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg)
-
 struct acpiphp_context;
 struct acpiphp_bridge;
 struct acpiphp_slot;
diff --git a/drivers/pci/hotplug/acpiphp_core.c b/drivers/pci/hotplug/acpiphp_core.c
index bf2203ef1308..8650d39db392 100644
--- a/drivers/pci/hotplug/acpiphp_core.c
+++ b/drivers/pci/hotplug/acpiphp_core.c
@@ -31,6 +31,8 @@
  *
  */
 
+#define pr_fmt(fmt) "acpiphp: " fmt
+
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
@@ -43,12 +45,9 @@
 #include <linux/smp.h>
 #include "acpiphp.h"
 
-#define MY_NAME	"acpiphp"
-
 /* name size which is used for entries in pcihpfs */
 #define SLOT_NAME_SIZE  21              /* {_SUN} */
 
-bool acpiphp_debug;
 bool acpiphp_disabled;
 
 /* local variables */
@@ -61,9 +60,7 @@ static struct acpiphp_attention_info *attention_info;
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-MODULE_PARM_DESC(debug, "Debugging mode enabled or not");
 MODULE_PARM_DESC(disable, "disable acpiphp driver");
-module_param_named(debug, acpiphp_debug, bool, 0644);
 module_param_named(disable, acpiphp_disabled, bool, 0444);
 
 /* export the attention callback registration methods */
@@ -139,7 +136,7 @@ static int enable_slot(struct hotplug_slot *hotplug_slot)
 {
 	struct slot *slot = hotplug_slot->private;
 
-	dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
+	pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot));
 
 	/* enable the specified slot */
 	return acpiphp_enable_slot(slot->acpi_slot);
@@ -156,7 +153,7 @@ static int disable_slot(struct hotplug_slot *hotplug_slot)
 {
 	struct slot *slot = hotplug_slot->private;
 
-	dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
+	pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot));
 
 	/* disable the specified slot */
 	return acpiphp_disable_and_eject_slot(slot->acpi_slot);
@@ -176,8 +173,9 @@ static int disable_slot(struct hotplug_slot *hotplug_slot)
  {
 	int retval = -ENODEV;
 
-	dbg("%s - physical_slot = %s\n", __func__, hotplug_slot_name(hotplug_slot));
- 
+	pr_debug("%s - physical_slot = %s\n", __func__,
+		hotplug_slot_name(hotplug_slot));
+
 	if (attention_info && try_module_get(attention_info->owner)) {
 		retval = attention_info->set_attn(hotplug_slot, status);
 		module_put(attention_info->owner);
@@ -199,7 +197,7 @@ static int get_power_status(struct hotplug_slot *hotplug_slot, u8 *value)
 {
 	struct slot *slot = hotplug_slot->private;
 
-	dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
+	pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot));
 
 	*value = acpiphp_get_power_status(slot->acpi_slot);
 
@@ -221,7 +219,8 @@ static int get_attention_status(struct hotplug_slot *hotplug_slot, u8 *value)
 {
 	int retval = -EINVAL;
 
-	dbg("%s - physical_slot = %s\n", __func__, hotplug_slot_name(hotplug_slot));
+	pr_debug("%s - physical_slot = %s\n", __func__,
+		hotplug_slot_name(hotplug_slot));
 
 	if (attention_info && try_module_get(attention_info->owner)) {
 		retval = attention_info->get_attn(hotplug_slot, value);
@@ -244,7 +243,7 @@ static int get_latch_status(struct hotplug_slot *hotplug_slot, u8 *value)
 {
 	struct slot *slot = hotplug_slot->private;
 
-	dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
+	pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot));
 
 	*value = acpiphp_get_latch_status(slot->acpi_slot);
 
@@ -264,7 +263,7 @@ static int get_adapter_status(struct hotplug_slot *hotplug_slot, u8 *value)
 {
 	struct slot *slot = hotplug_slot->private;
 
-	dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
+	pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot));
 
 	*value = acpiphp_get_adapter_status(slot->acpi_slot);
 
@@ -279,7 +278,7 @@ static void release_slot(struct hotplug_slot *hotplug_slot)
 {
 	struct slot *slot = hotplug_slot->private;
 
-	dbg("%s - physical_slot = %s\n", __func__, slot_name(slot));
+	pr_debug("%s - physical_slot = %s\n", __func__, slot_name(slot));
 
 	kfree(slot->hotplug_slot);
 	kfree(slot);
@@ -322,11 +321,11 @@ int acpiphp_register_hotplug_slot(struct acpiphp_slot *acpiphp_slot,
 	if (retval == -EBUSY)
 		goto error_hpslot;
 	if (retval) {
-		err("pci_hp_register failed with error %d\n", retval);
+		pr_err("pci_hp_register failed with error %d\n", retval);
 		goto error_hpslot;
  	}
 
-	info("Slot [%s] registered\n", slot_name(slot));
+	pr_info("Slot [%s] registered\n", slot_name(slot));
 
 	return 0;
 error_hpslot:
@@ -343,17 +342,17 @@ void acpiphp_unregister_hotplug_slot(struct acpiphp_slot *acpiphp_slot)
 	struct slot *slot = acpiphp_slot->slot;
 	int retval = 0;
 
-	info("Slot [%s] unregistered\n", slot_name(slot));
+	pr_info("Slot [%s] unregistered\n", slot_name(slot));
 
 	retval = pci_hp_deregister(slot->hotplug_slot);
 	if (retval)
-		err("pci_hp_deregister failed with error %d\n", retval);
+		pr_err("pci_hp_deregister failed with error %d\n", retval);
 }
 
 
 void __init acpiphp_init(void)
 {
-	info(DRIVER_DESC " version: " DRIVER_VERSION "%s\n",
+	pr_info(DRIVER_DESC " version: " DRIVER_VERSION "%s\n",
 		acpiphp_disabled ? ", disabled by user; please report a bug"
 				 : "");
 }
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 0b7d23b4ad95..6557702a0592 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -39,6 +39,8 @@
  *    bus. It loses the refcount when the the driver unloads.
  */
 
+#define pr_fmt(fmt) "acpiphp_glue: " fmt
+
 #include <linux/init.h>
 #include <linux/module.h>
 
@@ -58,8 +60,6 @@ static LIST_HEAD(bridge_list);
 static DEFINE_MUTEX(bridge_mutex);
 static DEFINE_MUTEX(acpiphp_context_lock);
 
-#define MY_NAME "acpiphp_glue"
-
 static void handle_hotplug_event(acpi_handle handle, u32 type, void *data);
 static void acpiphp_sanitize_bus(struct pci_bus *bus);
 static void acpiphp_set_hpp_values(struct pci_bus *bus);
@@ -335,7 +335,7 @@ static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data,
 		if (ACPI_FAILURE(status))
 			sun = bridge->nr_slots;
 
-		dbg("found ACPI PCI Hotplug slot %llu at PCI %04x:%02x:%02x\n",
+		pr_debug("found ACPI PCI Hotplug slot %llu at PCI %04x:%02x:%02x\n",
 		    sun, pci_domain_nr(pbus), pbus->number, device);
 
 		retval = acpiphp_register_hotplug_slot(slot, sun);
@@ -343,10 +343,10 @@ static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data,
 			slot->slot = NULL;
 			bridge->nr_slots--;
 			if (retval == -EBUSY)
-				warn("Slot %llu already registered by another "
+				pr_warn("Slot %llu already registered by another "
 					"hotplug driver\n", sun);
 			else
-				warn("acpiphp_register_hotplug_slot failed "
+				pr_warn("acpiphp_register_hotplug_slot failed "
 					"(err code = 0x%x)\n", retval);
 		}
 		/* Even if the slot registration fails, we can still use it. */
@@ -369,7 +369,7 @@ static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data,
 		if (register_hotplug_dock_device(handle,
 			&acpiphp_dock_ops, context,
 			acpiphp_dock_init, acpiphp_dock_release))
-			dbg("failed to register dock device\n");
+			pr_debug("failed to register dock device\n");
 	}
 
 	/* install notify handler */
@@ -427,7 +427,7 @@ static void cleanup_bridge(struct acpiphp_bridge *bridge)
 							ACPI_SYSTEM_NOTIFY,
 							handle_hotplug_event);
 				if (ACPI_FAILURE(status))
-					err("failed to remove notify handler\n");
+					pr_err("failed to remove notify handler\n");
 			}
 		}
 		if (slot->slot)
@@ -830,8 +830,9 @@ static void hotplug_event(acpi_handle handle, u32 type, void *data)
 	switch (type) {
 	case ACPI_NOTIFY_BUS_CHECK:
 		/* bus re-enumerate */
-		dbg("%s: Bus check notify on %s\n", __func__, objname);
-		dbg("%s: re-enumerating slots under %s\n", __func__, objname);
+		pr_debug("%s: Bus check notify on %s\n", __func__, objname);
+		pr_debug("%s: re-enumerating slots under %s\n",
+			 __func__, objname);
 		if (bridge) {
 			acpiphp_check_bridge(bridge);
 		} else {
@@ -845,7 +846,7 @@ static void hotplug_event(acpi_handle handle, u32 type, void *data)
 
 	case ACPI_NOTIFY_DEVICE_CHECK:
 		/* device check */
-		dbg("%s: Device check notify on %s\n", __func__, objname);
+		pr_debug("%s: Device check notify on %s\n", __func__, objname);
 		if (bridge) {
 			acpiphp_check_bridge(bridge);
 		} else {
@@ -866,7 +867,7 @@ static void hotplug_event(acpi_handle handle, u32 type, void *data)
 
 	case ACPI_NOTIFY_EJECT_REQUEST:
 		/* request device eject */
-		dbg("%s: Device eject notify on %s\n", __func__, objname);
+		pr_debug("%s: Device eject notify on %s\n", __func__, objname);
 		acpiphp_disable_and_eject_slot(func->slot);
 		break;
 	}
-- 
cgit 


From 43e7aa47a7fc3948304d386780ed3100cb67ddac Mon Sep 17 00:00:00 2001
From: Lan Tianyu <tianyu.lan@intel.com>
Date: Tue, 24 Sep 2013 18:07:28 -0600
Subject: PCI: acpiphp_ibm: Convert to dynamic debug

This patch is to use pr_debug/info/warn/err to replace acpiphp_ibm debug
functions and remove module's debug param.

User interface change: before this patch, boot with the "acpiphp_ibm.debug"
kernel parameter to turn on debug.  After this patch, set
CONFIG_DYNAMIC_DEBUG=y and boot with "acpiphp_ibm.dyndebug=+p" instead.
See Documentation/dynamic-debug-howto.txt.

[bhelgaas: changelog]
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/hotplug/acpiphp_ibm.c | 58 ++++++++++++++++-----------------------
 1 file changed, 24 insertions(+), 34 deletions(-)

diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
index 2f5786c8522c..0d64c414bf78 100644
--- a/drivers/pci/hotplug/acpiphp_ibm.c
+++ b/drivers/pci/hotplug/acpiphp_ibm.c
@@ -25,6 +25,8 @@
  *
  */
 
+#define pr_fmt(fmt) "acpiphp_ibm: " fmt
+
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/module.h>
@@ -43,23 +45,11 @@
 #define DRIVER_AUTHOR	"Irene Zubarev <zubarev@us.ibm.com>, Vernon Mauery <vernux@us.ibm.com>"
 #define DRIVER_DESC	"ACPI Hot Plug PCI Controller Driver IBM extension"
 
-static bool debug;
 
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRIVER_VERSION);
-module_param(debug, bool, 0644);
-MODULE_PARM_DESC(debug, " Debugging mode enabled or not");
-#define MY_NAME "acpiphp_ibm"
-
-#undef dbg
-#define dbg(format, arg...)				\
-do {							\
-	if (debug)					\
-		printk(KERN_DEBUG "%s: " format,	\
-				MY_NAME , ## arg);	\
-} while (0)
 
 #define FOUND_APCI 0x61504349
 /* these are the names for the IBM ACPI pseudo-device */
@@ -189,7 +179,7 @@ static int ibm_set_attention_status(struct hotplug_slot *slot, u8 status)
 
 	ibm_slot = ibm_slot_from_id(hpslot_to_sun(slot));
 
-	dbg("%s: set slot %d (%d) attention status to %d\n", __func__,
+	pr_debug("%s: set slot %d (%d) attention status to %d\n", __func__,
 			ibm_slot->slot.slot_num, ibm_slot->slot.slot_id,
 			(status ? 1 : 0));
 
@@ -202,10 +192,10 @@ static int ibm_set_attention_status(struct hotplug_slot *slot, u8 status)
 
 	stat = acpi_evaluate_integer(ibm_acpi_handle, "APLS", &params, &rc);
 	if (ACPI_FAILURE(stat)) {
-		err("APLS evaluation failed:  0x%08x\n", stat);
+		pr_err("APLS evaluation failed:  0x%08x\n", stat);
 		return -ENODEV;
 	} else if (!rc) {
-		err("APLS method failed:  0x%08llx\n", rc);
+		pr_err("APLS method failed:  0x%08llx\n", rc);
 		return -ERANGE;
 	}
 	return 0;
@@ -234,7 +224,7 @@ static int ibm_get_attention_status(struct hotplug_slot *slot, u8 *status)
 	else
 		*status = 0;
 
-	dbg("%s: get slot %d (%d) attention status is %d\n", __func__,
+	pr_debug("%s: get slot %d (%d) attention status is %d\n", __func__,
 			ibm_slot->slot.slot_num, ibm_slot->slot.slot_id,
 			*status);
 
@@ -266,10 +256,10 @@ static void ibm_handle_events(acpi_handle handle, u32 event, void *context)
 	u8 subevent = event & 0xf0;
 	struct notification *note = context;
 
-	dbg("%s: Received notification %02x\n", __func__, event);
+	pr_debug("%s: Received notification %02x\n", __func__, event);
 
 	if (subevent == 0x80) {
-		dbg("%s: generationg bus event\n", __func__);
+		pr_debug("%s: generationg bus event\n", __func__);
 		acpi_bus_generate_netlink_event(note->device->pnp.device_class,
 						  dev_name(&note->device->dev),
 						  note->event, detail);
@@ -301,7 +291,7 @@ static int ibm_get_table_from_acpi(char **bufp)
 
 	status = acpi_evaluate_object(ibm_acpi_handle, "APCI", NULL, &buffer);
 	if (ACPI_FAILURE(status)) {
-		err("%s:  APCI evaluation failed\n", __func__);
+		pr_err("%s:  APCI evaluation failed\n", __func__);
 		return -ENODEV;
 	}
 
@@ -309,13 +299,13 @@ static int ibm_get_table_from_acpi(char **bufp)
 	if (!(package) ||
 			(package->type != ACPI_TYPE_PACKAGE) ||
 			!(package->package.elements)) {
-		err("%s:  Invalid APCI object\n", __func__);
+		pr_err("%s:  Invalid APCI object\n", __func__);
 		goto read_table_done;
 	}
 
 	for(size = 0, i = 0; i < package->package.count; i++) {
 		if (package->package.elements[i].type != ACPI_TYPE_BUFFER) {
-			err("%s:  Invalid APCI element %d\n", __func__, i);
+			pr_err("%s:  Invalid APCI element %d\n", __func__, i);
 			goto read_table_done;
 		}
 		size += package->package.elements[i].buffer.length;
@@ -325,7 +315,7 @@ static int ibm_get_table_from_acpi(char **bufp)
 		goto read_table_done;
 
 	lbuf = kzalloc(size, GFP_KERNEL);
-	dbg("%s: element count: %i, ASL table size: %i, &table = 0x%p\n",
+	pr_debug("%s: element count: %i, ASL table size: %i, &table = 0x%p\n",
 			__func__, package->package.count, size, lbuf);
 
 	if (lbuf) {
@@ -370,8 +360,8 @@ static ssize_t ibm_read_apci_table(struct file *filp, struct kobject *kobj,
 {
 	int bytes_read = -EINVAL;
 	char *table = NULL;
-	
-	dbg("%s: pos = %d, size = %zd\n", __func__, (int)pos, size);
+
+	pr_debug("%s: pos = %d, size = %zd\n", __func__, (int)pos, size);
 
 	if (pos == 0) {
 		bytes_read = ibm_get_table_from_acpi(&table);
@@ -403,7 +393,7 @@ static acpi_status __init ibm_find_acpi_device(acpi_handle handle,
 
 	status = acpi_get_object_info(handle, &info);
 	if (ACPI_FAILURE(status)) {
-		err("%s:  Failed to get device information status=0x%x\n",
+		pr_err("%s:  Failed to get device information status=0x%x\n",
 			__func__, status);
 		return retval;
 	}
@@ -411,7 +401,7 @@ static acpi_status __init ibm_find_acpi_device(acpi_handle handle,
 	if (info->current_status && (info->valid & ACPI_VALID_HID) &&
 			(!strcmp(info->hardware_id.string, IBM_HARDWARE_ID1) ||
 			 !strcmp(info->hardware_id.string, IBM_HARDWARE_ID2))) {
-		dbg("found hardware: %s, handle: %p\n",
+		pr_debug("found hardware: %s, handle: %p\n",
 			info->hardware_id.string, handle);
 		*phandle = handle;
 		/* returning non-zero causes the search to stop
@@ -432,18 +422,18 @@ static int __init ibm_acpiphp_init(void)
 	struct acpi_device *device;
 	struct kobject *sysdir = &pci_slots_kset->kobj;
 
-	dbg("%s\n", __func__);
+	pr_debug("%s\n", __func__);
 
 	if (acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT,
 			ACPI_UINT32_MAX, ibm_find_acpi_device, NULL,
 			&ibm_acpi_handle, NULL) != FOUND_APCI) {
-		err("%s: acpi_walk_namespace failed\n", __func__);
+		pr_err("%s: acpi_walk_namespace failed\n", __func__);
 		retval = -ENODEV;
 		goto init_return;
 	}
-	dbg("%s: found IBM aPCI device\n", __func__);
+	pr_debug("%s: found IBM aPCI device\n", __func__);
 	if (acpi_bus_get_device(ibm_acpi_handle, &device)) {
-		err("%s: acpi_bus_get_device failed\n", __func__);
+		pr_err("%s: acpi_bus_get_device failed\n", __func__);
 		retval = -ENODEV;
 		goto init_return;
 	}
@@ -457,7 +447,7 @@ static int __init ibm_acpiphp_init(void)
 			ACPI_DEVICE_NOTIFY, ibm_handle_events,
 			&ibm_note);
 	if (ACPI_FAILURE(status)) {
-		err("%s: Failed to register notification handler\n",
+		pr_err("%s: Failed to register notification handler\n",
 				__func__);
 		retval = -EBUSY;
 		goto init_cleanup;
@@ -479,17 +469,17 @@ static void __exit ibm_acpiphp_exit(void)
 	acpi_status status;
 	struct kobject *sysdir = &pci_slots_kset->kobj;
 
-	dbg("%s\n", __func__);
+	pr_debug("%s\n", __func__);
 
 	if (acpiphp_unregister_attention(&ibm_attention_info))
-		err("%s: attention info deregistration failed", __func__);
+		pr_err("%s: attention info deregistration failed", __func__);
 
 	status = acpi_remove_notify_handler(
 			   ibm_acpi_handle,
 			   ACPI_DEVICE_NOTIFY,
 			   ibm_handle_events);
 	if (ACPI_FAILURE(status))
-		err("%s: Notification handler removal failed\n", __func__);
+		pr_err("%s: Notification handler removal failed\n", __func__);
 	/* remove the /sys entries */
 	sysfs_remove_bin_file(sysdir, &ibm_apci_table_attr);
 }
-- 
cgit 


From b74c746120376822fb9b5a28ab419cd4e07ac44f Mon Sep 17 00:00:00 2001
From: Lidza Louina <lidza.louina@gmail.com>
Date: Mon, 9 Sep 2013 15:01:26 -0400
Subject: staging: dgnc: removes LINUX_VERSION_CODE conditionals

This patch removes the conditionals that make sure
the driver supports various versions of the kernel.
They aren't needed.

Signed-off-by: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgnc/dgnc_driver.c  | 12 --------
 drivers/staging/dgnc/dgnc_kcompat.h | 24 ---------------
 drivers/staging/dgnc/dgnc_tty.c     | 61 ++-----------------------------------
 3 files changed, 2 insertions(+), 95 deletions(-)

diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c
index 1318a70401b2..3c5475901212 100644
--- a/drivers/staging/dgnc/dgnc_driver.c
+++ b/drivers/staging/dgnc/dgnc_driver.c
@@ -31,15 +31,10 @@
 
 
 #include <linux/kernel.h>
-#include <linux/version.h>
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/slab.h>
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)
 #include <linux/sched.h>
-#endif
-
 #include "dgnc_driver.h"
 #include "dgnc_pci.h"
 #include "dpacompat.h"
@@ -291,16 +286,9 @@ static int dgnc_start(void)
 			dgnc_Major = rc;
 
 			dgnc_class = class_create(THIS_MODULE, "dgnc_mgmt");
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
-			device_create_drvdata(dgnc_class, NULL,
-				MKDEV(dgnc_Major, 0),
-				NULL, "dgnc_mgmt");
-#else
 			device_create(dgnc_class, NULL,
 				MKDEV(dgnc_Major, 0),
 				NULL, "dgnc_mgmt");
-#endif
-
 			dgnc_Major_Control_Registered = TRUE;
 		}
 
diff --git a/drivers/staging/dgnc/dgnc_kcompat.h b/drivers/staging/dgnc/dgnc_kcompat.h
index 00f589a13ab9..ed85152b0534 100644
--- a/drivers/staging/dgnc/dgnc_kcompat.h
+++ b/drivers/staging/dgnc/dgnc_kcompat.h
@@ -28,8 +28,6 @@
 #ifndef __DGNC_KCOMPAT_H
 #define __DGNC_KCOMPAT_H
 
-#include <linux/version.h>
-
 # ifndef KERNEL_VERSION
 #  define KERNEL_VERSION(a,b,c)  (((a) << 16) + ((b) << 8) + (c))
 # endif
@@ -68,26 +66,4 @@
 		module_param(VAR, long, PERM); \
 		MODULE_PARM_DESC(VAR, DESC);
 
-
-
-
-
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27)
-
-
-
-/* NOTHING YET */
-
-
-
-# else
-
-
-
-# error "this driver does not support anything below the 2.6.27 kernel series."
-
-
-
-# endif
-
 #endif /* ! __DGNC_KCOMPAT_H */
diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c
index 6906e9810913..1350d6266524 100644
--- a/drivers/staging/dgnc/dgnc_tty.c
+++ b/drivers/staging/dgnc/dgnc_tty.c
@@ -38,7 +38,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/version.h>
 #include <linux/sched.h>	/* For jiffies, task states */
 #include <linux/interrupt.h>	/* For tasklet and interrupt structs/defines */
 #include <linux/module.h>
@@ -60,11 +59,9 @@
 #include "dpacompat.h"
 #include "dgnc_sysfs.h"
 
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37)
 #define init_MUTEX(sem)	 sema_init(sem, 1)
 #define DECLARE_MUTEX(name)     \
 	struct semaphore name = __SEMAPHORE_INITIALIZER(name, 1)
-#endif
 
 /*
  * internal variables
@@ -126,13 +123,8 @@ static void dgnc_tty_flush_buffer(struct tty_struct *tty);
 static void dgnc_tty_hangup(struct tty_struct *tty);
 static int dgnc_set_modem_info(struct tty_struct *tty, unsigned int command, unsigned int __user *value);
 static int dgnc_get_modem_info(struct channel_t *ch, unsigned int __user *value);
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)
 static int dgnc_tty_tiocmget(struct tty_struct *tty);
 static int dgnc_tty_tiocmset(struct tty_struct *tty, unsigned int set, unsigned int clear);
-#else
-static int dgnc_tty_tiocmget(struct tty_struct *tty, struct file *file);
-static int dgnc_tty_tiocmset(struct tty_struct *tty, struct file *file, unsigned int set, unsigned int clear);
-#endif
 static int dgnc_tty_send_break(struct tty_struct *tty, int msec);
 static void dgnc_tty_wait_until_sent(struct tty_struct *tty, int timeout);
 static int dgnc_tty_write(struct tty_struct *tty, const unsigned char *buf, int count);
@@ -234,21 +226,11 @@ int dgnc_tty_register(struct dgnc_board *brd)
 	if (!brd->SerialDriver.ttys)
 		return -ENOMEM;
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
-	brd->SerialDriver.refcount = brd->TtyRefCnt;
-#else
 	kref_init(&brd->SerialDriver.kref);
-#endif
-
 	brd->SerialDriver.termios = kzalloc(brd->maxports * sizeof(struct ktermios *), GFP_KERNEL);
 	if (!brd->SerialDriver.termios)
 		return -ENOMEM;
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3,0,0)
-	brd->SerialDriver.termios_locked = kzalloc(brd->maxports * sizeof(struct ktermios *), GFP_KERNEL);
-	if (!brd->SerialDriver.termios_locked)
-		return -ENOMEM;
-#endif
 	/*
 	 * Entry points for driver.  Called by the kernel from
 	 * tty_io.c and n_tty.c.
@@ -292,23 +274,11 @@ int dgnc_tty_register(struct dgnc_board *brd)
 	brd->PrintDriver.ttys = kzalloc(brd->maxports * sizeof(struct tty_struct *), GFP_KERNEL);
 	if (!brd->PrintDriver.ttys)
 		return -ENOMEM;
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
-	brd->PrintDriver.refcount = brd->TtyRefCnt;
-#else
 	kref_init(&brd->PrintDriver.kref);
-#endif
-
 	brd->PrintDriver.termios = kzalloc(brd->maxports * sizeof(struct ktermios *), GFP_KERNEL);
 	if (!brd->PrintDriver.termios)
 		return -ENOMEM;
 
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3,0,0)
-	brd->PrintDriver.termios_locked = kzalloc(brd->maxports * sizeof(struct ktermios *), GFP_KERNEL);
-	if (!brd->PrintDriver.termios_locked)
-		return -ENOMEM;
-#endif
-
 	/*
 	 * Entry points for driver.  Called by the kernel from
 	 * tty_io.c and n_tty.c.
@@ -1158,7 +1128,6 @@ void dgnc_wakeup_writes(struct channel_t *ch)
 	}
 
 	if (ch->ch_tun.un_flags & UN_ISOPEN) {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30)
 		if ((ch->ch_tun.un_tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
 			ch->ch_tun.un_tty->ldisc->ops->write_wakeup)
 		{
@@ -1166,15 +1135,6 @@ void dgnc_wakeup_writes(struct channel_t *ch)
 			(ch->ch_tun.un_tty->ldisc->ops->write_wakeup)(ch->ch_tun.un_tty);
 			DGNC_LOCK(ch->ch_lock, lock_flags);
 		}
-#else
-		if ((ch->ch_tun.un_tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
-			ch->ch_tun.un_tty->ldisc.ops->write_wakeup)
-		{
-			DGNC_UNLOCK(ch->ch_lock, lock_flags);
-			(ch->ch_tun.un_tty->ldisc.ops->write_wakeup)(ch->ch_tun.un_tty);
-			DGNC_LOCK(ch->ch_lock, lock_flags);
-		}
-#endif
 
 		wake_up_interruptible(&ch->ch_tun.un_tty->write_wait);
 
@@ -1210,7 +1170,6 @@ void dgnc_wakeup_writes(struct channel_t *ch)
 	}
 
 	if (ch->ch_pun.un_flags & UN_ISOPEN) {
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,30)
 		if ((ch->ch_pun.un_tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
 			ch->ch_pun.un_tty->ldisc->ops->write_wakeup)
 		{
@@ -1218,15 +1177,6 @@ void dgnc_wakeup_writes(struct channel_t *ch)
 			(ch->ch_pun.un_tty->ldisc->ops->write_wakeup)(ch->ch_pun.un_tty);
 			DGNC_LOCK(ch->ch_lock, lock_flags);
 		}
-#else
-		if ((ch->ch_pun.un_tty->flags & (1 << TTY_DO_WRITE_WAKEUP)) &&
-			ch->ch_pun.un_tty->ldisc.ops->write_wakeup)
-		{
-			DGNC_UNLOCK(ch->ch_lock, lock_flags);
-			(ch->ch_pun.un_tty->ldisc.ops->write_wakeup)(ch->ch_pun.un_tty);
-			DGNC_LOCK(ch->ch_lock, lock_flags);
-		}
-#endif
 
 		wake_up_interruptible(&ch->ch_pun.un_tty->write_wait);
 
@@ -2236,11 +2186,8 @@ static int dgnc_tty_write(struct tty_struct *tty,
 /*
  * Return modem signals to ld.
  */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)
+
 static int dgnc_tty_tiocmget(struct tty_struct *tty)
-#else
-static int dgnc_tty_tiocmget(struct tty_struct *tty, struct file *file)
-#endif
 {
 	struct channel_t *ch;
 	struct un_t *un;
@@ -2293,13 +2240,9 @@ static int dgnc_tty_tiocmget(struct tty_struct *tty, struct file *file)
  *
  * Set modem signals, called by ld.
  */
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,39)
+
 static int dgnc_tty_tiocmset(struct tty_struct *tty,
 		unsigned int set, unsigned int clear)
-#else
-static int dgnc_tty_tiocmset(struct tty_struct *tty, struct file *file,
-		unsigned int set, unsigned int clear)
-#endif
 {
 	struct dgnc_board *bd;
 	struct channel_t *ch;
-- 
cgit 


From 6319c61aecc7acaf39a1dc0e81a8aac6a17499ee Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Sat, 21 Sep 2013 20:38:30 +0800
Subject: drivers: staging: dgap: move DG_NAME and DG_PART from "Makefile" to
 "dgap_driver.h"

Normally, the macros from command line are system specific macros (e.g
__linux, __KERNEL__ ...), and module own macros are usually defined in
their header files.

DG_NAME and DG_PART are driver 'dgap' owned macros which are used by
multiple files within driver, and need be defined in the driver main
header file.

So move DG_NAME and DG_PART to "dgap_driver.h", it not only can make
code clearer, but also can avoid compiling failure when EXTRA_CFLAGS
appended to make command line (e.g. "EXTRA_CFLAGS=-W").

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgap/Makefile      | 2 --
 drivers/staging/dgap/dgap_driver.h | 3 +++
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/dgap/Makefile b/drivers/staging/dgap/Makefile
index 9f1fce157c77..3abe8d2bb748 100644
--- a/drivers/staging/dgap/Makefile
+++ b/drivers/staging/dgap/Makefile
@@ -1,5 +1,3 @@
-EXTRA_CFLAGS += -DDG_NAME=\"dgap-1.3-16\" -DDG_PART=\"40002347_C\"
-
 obj-$(CONFIG_DGAP) += dgap.o
 
 
diff --git a/drivers/staging/dgap/dgap_driver.h b/drivers/staging/dgap/dgap_driver.h
index 4b9538598f3c..7d631e80c00e 100644
--- a/drivers/staging/dgap/dgap_driver.h
+++ b/drivers/staging/dgap/dgap_driver.h
@@ -53,6 +53,9 @@
  * DPR((fmt, args, ...));	Only prints if DGAP_TRACER is defined at
  *				  compile time and dgap_debug!=0
  */
+#define	DG_NAME		"dgap-1.3-16"
+#define	DG_PART		"40002347_C"
+
 #define	PROCSTR		"dgap"			/* /proc entries	 */
 #define	DEVSTR		"/dev/dg/dgap"		/* /dev entries		 */
 #define	DRVSTR		"dgap"			/* Driver name string 
-- 
cgit 


From 57a42192e61e7d0074fa6027e2565461bfd60147 Mon Sep 17 00:00:00 2001
From: Lidza Louina <lidza.louina@gmail.com>
Date: Mon, 23 Sep 2013 18:47:12 -0400
Subject: staging: dgap: driver.c: removes smatch warning "redundant null
 check"

This patch removes these smatch warnings from dgap_driver.c:

redundant null check on dgap_config_buf calling kfree()
redundant null check on brd->flipbuf calling kfree()
redundant null check on brd->flipflagbuf calling kfree()

Signed-off-by: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgap/dgap_driver.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/dgap/dgap_driver.c b/drivers/staging/dgap/dgap_driver.c
index a3fa6a80b3ae..4c1515ee56e5 100644
--- a/drivers/staging/dgap/dgap_driver.c
+++ b/drivers/staging/dgap/dgap_driver.c
@@ -416,8 +416,7 @@ void dgap_cleanup_module(void)
 		unregister_chrdev(DIGI_DGAP_MAJOR, "dgap");
 	}
 
-	if (dgap_config_buf)
-		kfree(dgap_config_buf);
+	kfree(dgap_config_buf);
 
 	for (i = 0; i < dgap_NumBoards; ++i) {
 		dgap_remove_ports_sysfiles(dgap_Board[i]);
@@ -484,10 +483,8 @@ static void dgap_cleanup_board(struct board_t *brd)
 		}
 	}
 
-	if (brd->flipbuf)
-		kfree(brd->flipbuf);
-	if (brd->flipflagbuf)
-		kfree(brd->flipflagbuf);
+	kfree(brd->flipbuf);
+	kfree(brd->flipflagbuf);
 
 	dgap_Board[brd->boardnum] = NULL;
 
-- 
cgit 


From faf4bd47b06d8c92610cda8d49bfe4b79f79f74f Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Tue, 24 Sep 2013 22:28:15 +0300
Subject: ARM: OMAP2+: pdata-quirks: set internal clock source for MMC2 on
 N950/N9

Set internal clock source for MMC2 on N950/N9.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/pdata-quirks.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index 04bfa647a934..3d472dbb9205 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -16,6 +16,7 @@
 #include "common.h"
 #include "common-board-devices.h"
 #include "dss-common.h"
+#include "control.h"
 
 struct pdata_init {
 	const char *compatible;
@@ -64,6 +65,17 @@ static inline void legacy_init_wl12xx(unsigned ref_clock,
 }
 #endif
 
+#ifdef CONFIG_ARCH_OMAP3
+static void __init hsmmc2_internal_input_clk(void)
+{
+	u32 reg;
+
+	reg = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1);
+	reg |= OMAP2_MMCSDIO2ADPCLKISEL;
+	omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1);
+}
+#endif /* CONFIG_ARCH_OMAP3 */
+
 #ifdef CONFIG_ARCH_OMAP4
 static void __init omap4_sdp_legacy_init(void)
 {
@@ -88,6 +100,10 @@ static void __init omap5_uevm_legacy_init(void)
 #endif
 
 static struct pdata_init pdata_quirks[] __initdata = {
+#ifdef CONFIG_ARCH_OMAP3
+	{ "nokia,omap3-n9", hsmmc2_internal_input_clk, },
+	{ "nokia,omap3-n950", hsmmc2_internal_input_clk, },
+#endif
 #ifdef CONFIG_ARCH_OMAP4
 	{ "ti,omap4-sdp", omap4_sdp_legacy_init, },
 	{ "ti,omap4-panda", omap4_panda_legacy_init, },
-- 
cgit 


From 913b6f8e0dccadb1189e945d7438047d59efe785 Mon Sep 17 00:00:00 2001
From: Lidza Louina <lidza.louina@gmail.com>
Date: Mon, 23 Sep 2013 18:47:14 -0400
Subject: staging: dgap: tty.c: removes smatch warning "ignoring unreachable
 code"

This patch removes this smatch warning:
info: ignoring unreachable code.

There were instances where there was extra code after
the default action in switch statements. These default
actions ended with a break so the code wasn't being run
at anytime. This patch removes that extra code.

Signed-off-by: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgap/dgap_tty.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/drivers/staging/dgap/dgap_tty.c b/drivers/staging/dgap/dgap_tty.c
index 2b2615202264..7f909b857808 100644
--- a/drivers/staging/dgap/dgap_tty.c
+++ b/drivers/staging/dgap/dgap_tty.c
@@ -3513,10 +3513,6 @@ static int dgap_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 			return(-EINVAL);
 		}
 
-		DGAP_UNLOCK(ch->ch_lock, lock_flags2);
-		DGAP_UNLOCK(bd->bd_lock, lock_flags);
-		return(-ENOIOCTLCMD);
-
 	case DIGI_GETA:
 		/* get information for ditty */
 		DGAP_UNLOCK(ch->ch_lock, lock_flags2);
@@ -3586,12 +3582,4 @@ static int dgap_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 
 		return(-ENOIOCTLCMD);
 	}
-
-	DGAP_UNLOCK(ch->ch_lock, lock_flags2);
-	DGAP_UNLOCK(bd->bd_lock, lock_flags);
-
-	DPR_IOCTL(("dgap_tty_ioctl end - cmd %s (%x), arg %lx\n", 
-		dgap_ioctl_name(cmd), cmd, arg));
-                        
-	return(0);
 }
-- 
cgit 


From fcfeef6c5144c3759f84edafd24eb4e74343c820 Mon Sep 17 00:00:00 2001
From: Lidza Louina <lidza.louina@gmail.com>
Date: Mon, 23 Sep 2013 18:47:15 -0400
Subject: staging: dgap: tty.c: removes smatch warnings "redundant null check"

This patch removes these smatch warnings:
redundant null check on dgap_TmpWriteBuf calling kfree()
redundant null check on brd->SerialDriver->ttys calling kfree()
redundant null check on brd->PrintDriver->ttys calling kfree()

The code checked to see if these variables are null
before freeing. This check isn't needed.

Signed-off-by: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgap/dgap_tty.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/dgap/dgap_tty.c b/drivers/staging/dgap/dgap_tty.c
index 7f909b857808..924e2bfcbe30 100644
--- a/drivers/staging/dgap/dgap_tty.c
+++ b/drivers/staging/dgap/dgap_tty.c
@@ -497,10 +497,8 @@ int dgap_tty_init(struct board_t *brd)
  */
 void dgap_tty_post_uninit(void)
 {
-	if (dgap_TmpWriteBuf) {
-		kfree(dgap_TmpWriteBuf);
-		dgap_TmpWriteBuf = NULL;
-	}
+	kfree(dgap_TmpWriteBuf);
+	dgap_TmpWriteBuf = NULL;
 }
 
 
@@ -522,10 +520,8 @@ void dgap_tty_uninit(struct board_t *brd)
 			tty_unregister_device(brd->SerialDriver, i);
 		}
 		tty_unregister_driver(brd->SerialDriver);
-		if (brd->SerialDriver->ttys) {
-			kfree(brd->SerialDriver->ttys);
-			brd->SerialDriver->ttys = NULL;
-		}
+		kfree(brd->SerialDriver->ttys);
+		brd->SerialDriver->ttys = NULL;
 		put_tty_driver(brd->SerialDriver);
 		brd->dgap_Major_Serial_Registered = FALSE;
 	}
@@ -538,10 +534,8 @@ void dgap_tty_uninit(struct board_t *brd)
 			tty_unregister_device(brd->PrintDriver, i);
 		}
 		tty_unregister_driver(brd->PrintDriver);
-		if (brd->PrintDriver->ttys) {
-			kfree(brd->PrintDriver->ttys);
-			brd->PrintDriver->ttys = NULL;
-	        }
+		kfree(brd->PrintDriver->ttys);
+		brd->PrintDriver->ttys = NULL;
 		put_tty_driver(brd->PrintDriver);
 		brd->dgap_Major_TransparentPrint_Registered = FALSE;
 	}
-- 
cgit 


From 3230c0cc98dc1641e3de3c2f25590bcdd8e21a34 Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Sun, 15 Sep 2013 15:11:07 +0900
Subject: staging: lustre: Fix typo in lustre/libcfs

Correct spelling typos in comment and debug message,
within  luster/libcfs

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/libcfs/hash.c                | 2 +-
 drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c | 2 +-
 drivers/staging/lustre/lustre/libcfs/prng.c                | 4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/lustre/lustre/libcfs/hash.c b/drivers/staging/lustre/lustre/libcfs/hash.c
index 0dd12c8c91b6..29ce3807fc88 100644
--- a/drivers/staging/lustre/lustre/libcfs/hash.c
+++ b/drivers/staging/lustre/lustre/libcfs/hash.c
@@ -1965,7 +1965,7 @@ cfs_hash_rehash_worker(cfs_workitem_t *wi)
 	if (bkts != NULL)
 		cfs_hash_buckets_free(bkts, bsize, new_size, old_size);
 	if (rc != 0)
-		CDEBUG(D_INFO, "early quit of of rehashing: %d\n", rc);
+		CDEBUG(D_INFO, "early quit of rehashing: %d\n", rc);
 	/* return 1 only if cfs_wi_exit is called */
 	return rc == -ESRCH;
 }
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c
index ea9e9490031f..6a26c6664f88 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c
@@ -167,7 +167,7 @@ static int cfs_access_process_vm(struct task_struct *tsk, unsigned long addr,
 		return 0;
 
 	down_read(&mm->mmap_sem);
-	/* ignore errors, just check how much was sucessfully transfered */
+	/* ignore errors, just check how much was successfully transferred */
 	while (len) {
 		int bytes, rc, offset;
 		void *maddr;
diff --git a/drivers/staging/lustre/lustre/libcfs/prng.c b/drivers/staging/lustre/lustre/libcfs/prng.c
index 69224d84bc4b..f87e9e516546 100644
--- a/drivers/staging/lustre/lustre/libcfs/prng.c
+++ b/drivers/staging/lustre/lustre/libcfs/prng.c
@@ -70,7 +70,7 @@ static unsigned int seed_y = 362436069;
  * cfs_rand - creates new seeds
  *
  * First it creates new seeds from the previous seeds. Then it generates a
- * new psuedo random number for use.
+ * new pseudo random number for use.
  *
  * Returns a pseudo-random 32-bit integer
  */
@@ -84,7 +84,7 @@ unsigned int cfs_rand(void)
 EXPORT_SYMBOL(cfs_rand);
 
 /**
- * cfs_srand - sets the inital seed
+ * cfs_srand - sets the initial seed
  * @seed1 : (seed_x) should have the most entropy in the low bits of the word
  * @seed2 : (seed_y) should have the most entropy in the high bits of the word
  *
-- 
cgit 


From bef31c78041f3104a6ccf2cdba0825dc88a2d457 Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Sun, 15 Sep 2013 14:38:18 +0900
Subject: staging: lustre: Fix typo in lustre/llite

Correct spelling typo in lustre/llite
Correct double words "to to"

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/llite/dir.c         | 2 +-
 drivers/staging/lustre/lustre/llite/file.c        | 6 +++---
 drivers/staging/lustre/lustre/llite/llite_close.c | 2 +-
 drivers/staging/lustre/lustre/llite/statahead.c   | 2 +-
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/lustre/lustre/llite/dir.c b/drivers/staging/lustre/lustre/llite/dir.c
index 09844be5eec4..1f079034bd8f 100644
--- a/drivers/staging/lustre/lustre/llite/dir.c
+++ b/drivers/staging/lustre/lustre/llite/dir.c
@@ -743,7 +743,7 @@ int ll_dir_setstripe(struct inode *inode, struct lov_user_md *lump,
 
 	/* In the following we use the fact that LOV_USER_MAGIC_V1 and
 	 LOV_USER_MAGIC_V3 have the same initial fields so we do not
-	 need the make the distiction between the 2 versions */
+	 need to make the distinction between the 2 versions */
 	if (set_default && mgc->u.cli.cl_mgc_mgsexp) {
 		char *param = NULL;
 		char *buf;
diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c
index bc534db12431..8c4b4fa0d59b 100644
--- a/drivers/staging/lustre/lustre/llite/file.c
+++ b/drivers/staging/lustre/lustre/llite/file.c
@@ -364,7 +364,7 @@ static int ll_intent_file_open(struct file *file, void *lmm,
 	   that case that lock is also ok */
 	/* We can also get here if there was cached open handle in revalidate_it
 	 * but it disappeared while we were getting from there to ll_file_open.
-	 * But this means this file was closed and immediatelly opened which
+	 * But this means this file was closed and immediately opened which
 	 * makes a good candidate for using OPEN lock */
 	/* If lmmsize & lmm are not 0, we are just setting stripe info
 	 * parameters. No need for the open lock */
@@ -2456,8 +2456,8 @@ static int ll_inode_revalidate_fini(struct inode *inode, int rc)
 	if (rc == -ENOENT) {
 		clear_nlink(inode);
 		/* This path cannot be hit for regular files unless in
-		 * case of obscure races, so no need to to validate
-		 * size. */
+		 * case of obscure races, so no need to validate size.
+		 */
 		if (!S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode))
 			return 0;
 	} else if (rc != 0) {
diff --git a/drivers/staging/lustre/lustre/llite/llite_close.c b/drivers/staging/lustre/lustre/llite/llite_close.c
index 1f5825c87a79..e2996c46b2c0 100644
--- a/drivers/staging/lustre/lustre/llite/llite_close.c
+++ b/drivers/staging/lustre/lustre/llite/llite_close.c
@@ -159,7 +159,7 @@ void ll_ioepoch_close(struct inode *inode, struct md_op_data *op_data,
 		}
 		if (flags & LLIF_DONE_WRITING) {
 			/* Some pages are still dirty, it is early to send
-			 * DONE_WRITE. Wait untill all pages will be flushed
+			 * DONE_WRITE. Wait until all pages will be flushed
 			 * and try DONE_WRITE again later. */
 			LASSERT(!(lli->lli_flags & LLIF_DONE_WRITING));
 			lli->lli_flags |= LLIF_DONE_WRITING;
diff --git a/drivers/staging/lustre/lustre/llite/statahead.c b/drivers/staging/lustre/lustre/llite/statahead.c
index 8eaa38e91b99..f6b5f4b95f37 100644
--- a/drivers/staging/lustre/lustre/llite/statahead.c
+++ b/drivers/staging/lustre/lustre/llite/statahead.c
@@ -647,7 +647,7 @@ static void ll_post_statahead(struct ll_statahead_info *sai)
 		 */
 		LASSERT(fid_is_zero(&minfo->mi_data.op_fid2));
 
-		/* XXX: No fid in reply, this is probaly cross-ref case.
+		/* XXX: No fid in reply, this is probably cross-ref case.
 		 * SA can't handle it yet. */
 		if (body->valid & OBD_MD_MDS)
 			GOTO(out, rc = -EAGAIN);
-- 
cgit 


From 8afd983ce4a3e2efe513a131ef5ee4516ec2eb28 Mon Sep 17 00:00:00 2001
From: Jon Bernard <jbernard@tuxion.com>
Date: Mon, 16 Sep 2013 21:27:55 -0400
Subject: Staging: lustre: remove assignment in if conditions

This is a patch to lvfs_linux.c that removes the use of variable assignment
within an if condition found by checkpatch.pl.

Signed-off-by: Jon Bernard <jbernard@tuxion.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/lvfs/lvfs_linux.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c b/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c
index 18e1b47a1d65..7b03f4dfd3b0 100644
--- a/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c
+++ b/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c
@@ -80,7 +80,8 @@ static void push_group_info(struct lvfs_run_ctxt *save,
 		struct cred *cred;
 		task_lock(current);
 		save->group_info = current_cred()->group_info;
-		if ((cred = prepare_creds())) {
+		cred = prepare_creds();
+		if (cred) {
 			cred->group_info = ginfo;
 			commit_creds(cred);
 		}
@@ -96,7 +97,8 @@ static void pop_group_info(struct lvfs_run_ctxt *save,
 	} else {
 		struct cred *cred;
 		task_lock(current);
-		if ((cred = prepare_creds())) {
+		cred = prepare_creds();
+		if (cred) {
 			cred->group_info = save->group_info;
 			commit_creds(cred);
 		}
@@ -137,7 +139,8 @@ void push_ctxt(struct lvfs_run_ctxt *save, struct lvfs_run_ctxt *new_ctx,
 		save->luc.luc_fsgid = current_fsgid();
 		save->luc.luc_cap = current_cap();
 
-		if ((cred = prepare_creds())) {
+		cred = prepare_creds();
+		if (cred) {
 			cred->uid = uc->luc_uid;
 			cred->gid = uc->luc_gid;
 			cred->fsuid = uc->luc_fsuid;
@@ -180,7 +183,8 @@ void pop_ctxt(struct lvfs_run_ctxt *saved, struct lvfs_run_ctxt *new_ctx,
 	current->fs->umask = saved->luc.luc_umask;
 	if (uc) {
 		struct cred *cred;
-		if ((cred = prepare_creds())) {
+		cred = prepare_creds();
+		if (cred) {
 			cred->uid = saved->luc.luc_uid;
 			cred->gid = saved->luc.luc_gid;
 			cred->fsuid = saved->luc.luc_fsuid;
-- 
cgit 


From ec40a9af1a305b8523fc8c048d340ca2501f57ca Mon Sep 17 00:00:00 2001
From: Jon Bernard <jbernard@tuxion.com>
Date: Tue, 17 Sep 2013 15:44:58 -0400
Subject: Staging: lustre: fix switch case statement indenting

This is a patch to lvfs_linux.c that fixes incorrect switch case statement
indenting found by checkpatch.pl.

Signed-off-by: Jon Bernard <jbernard@tuxion.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/lvfs/lvfs_linux.c | 50 ++++++++++++-------------
 1 file changed, 25 insertions(+), 25 deletions(-)

diff --git a/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c b/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c
index 7b03f4dfd3b0..f6268dcec542 100644
--- a/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c
+++ b/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c
@@ -257,31 +257,31 @@ __s64 lprocfs_read_helper(struct lprocfs_counter *lc,
 		return 0;
 
 	switch (field) {
-		case LPROCFS_FIELDS_FLAGS_CONFIG:
-			ret = header->lc_config;
-			break;
-		case LPROCFS_FIELDS_FLAGS_SUM:
-			ret = lc->lc_sum;
-			if ((flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
-				ret += lc->lc_sum_irq;
-			break;
-		case LPROCFS_FIELDS_FLAGS_MIN:
-			ret = lc->lc_min;
-			break;
-		case LPROCFS_FIELDS_FLAGS_MAX:
-			ret = lc->lc_max;
-			break;
-		case LPROCFS_FIELDS_FLAGS_AVG:
-			ret = (lc->lc_max - lc->lc_min) / 2;
-			break;
-		case LPROCFS_FIELDS_FLAGS_SUMSQUARE:
-			ret = lc->lc_sumsquare;
-			break;
-		case LPROCFS_FIELDS_FLAGS_COUNT:
-			ret = lc->lc_count;
-			break;
-		default:
-			break;
+	case LPROCFS_FIELDS_FLAGS_CONFIG:
+		ret = header->lc_config;
+		break;
+	case LPROCFS_FIELDS_FLAGS_SUM:
+		ret = lc->lc_sum;
+		if ((flags & LPROCFS_STATS_FLAG_IRQ_SAFE) != 0)
+			ret += lc->lc_sum_irq;
+		break;
+	case LPROCFS_FIELDS_FLAGS_MIN:
+		ret = lc->lc_min;
+		break;
+	case LPROCFS_FIELDS_FLAGS_MAX:
+		ret = lc->lc_max;
+		break;
+	case LPROCFS_FIELDS_FLAGS_AVG:
+		ret = (lc->lc_max - lc->lc_min) / 2;
+		break;
+	case LPROCFS_FIELDS_FLAGS_SUMSQUARE:
+		ret = lc->lc_sumsquare;
+		break;
+	case LPROCFS_FIELDS_FLAGS_COUNT:
+		ret = lc->lc_count;
+		break;
+	default:
+		break;
 	};
 
 	return ret;
-- 
cgit 


From a9dfd408a94a84a167d06adb5a1319e21b9e6284 Mon Sep 17 00:00:00 2001
From: Avinash kumar <avi.kp.137@gmail.com>
Date: Fri, 20 Sep 2013 12:02:54 +0530
Subject: drivers: staging: netlogic.h: removed WARNING: extern prototypes
 should be avoided in .h files

removed checpatch warning : WARNING: extern prototypes should be avoided in .h files

Signed-off-by: Avinash Kumar <avi.kp.137@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/netlogic/xlr_net.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/netlogic/xlr_net.h b/drivers/staging/netlogic/xlr_net.h
index f91d27e9d7c4..cea796633711 100644
--- a/drivers/staging/netlogic/xlr_net.h
+++ b/drivers/staging/netlogic/xlr_net.h
@@ -1096,4 +1096,4 @@ struct xlr_net_priv {
 	u64 *class_3_spill;
 };
 
-extern void xlr_set_gmac_speed(struct xlr_net_priv *priv);
+void xlr_set_gmac_speed(struct xlr_net_priv *priv);
-- 
cgit 


From 811a7519848d692d1b2f594af2409b6ddc6b0642 Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Mon, 16 Sep 2013 11:44:08 +0900
Subject: staging: octeon: Fix typo in staging/octeon

Correct spelling typo in staging/octeon

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon/ethernet-rx.c | 4 ++--
 drivers/staging/octeon/ethernet-tx.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c
index e14a1bb04361..8897d2d38578 100644
--- a/drivers/staging/octeon/ethernet-rx.c
+++ b/drivers/staging/octeon/ethernet-rx.c
@@ -72,7 +72,7 @@ struct cvm_oct_core_state {
 	int baseline_cores;
 	/*
 	 * The number of additional cores that could be processing
-	 * input packtes.
+	 * input packets.
 	 */
 	atomic_t available_cores;
 	cpumask_t cpu_state;
@@ -526,7 +526,7 @@ void cvm_oct_rx_initialize(void)
 			       cvm_oct_napi_poll, rx_napi_weight);
 		napi_enable(&cvm_oct_napi[i].napi);
 	}
-	/* Register an IRQ hander for to receive POW interrupts */
+	/* Register an IRQ handler to receive POW interrupts */
 	i = request_irq(OCTEON_IRQ_WORKQ0 + pow_receive_group,
 			cvm_oct_do_interrupt, 0, "Ethernet", cvm_oct_device);
 
diff --git a/drivers/staging/octeon/ethernet-tx.c b/drivers/staging/octeon/ethernet-tx.c
index 5631dd9f8201..dbfef1a05176 100644
--- a/drivers/staging/octeon/ethernet-tx.c
+++ b/drivers/staging/octeon/ethernet-tx.c
@@ -709,7 +709,7 @@ void cvm_oct_tx_initialize(void)
 
 	/* Disable the interrupt.  */
 	cvmx_write_csr(CVMX_CIU_TIMX(1), 0);
-	/* Register an IRQ hander for to receive CIU_TIMX(1) interrupts */
+	/* Register an IRQ handler to receive CIU_TIMX(1) interrupts */
 	i = request_irq(OCTEON_IRQ_TIMER1,
 			cvm_oct_tx_cleanup_watchdog, 0,
 			"Ethernet", cvm_oct_device);
-- 
cgit 


From a0ae9e3c334df08573b0e8de08d8d4130a843066 Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Sun, 15 Sep 2013 20:31:37 +0900
Subject: staging: vt6655: vt6656: Fix typo in comments

Correct spelling typo in staging/vt6655 and staging/vt6656

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6655/wcmd.c | 2 +-
 drivers/staging/vt6656/wmgr.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/vt6655/wcmd.c b/drivers/staging/vt6655/wcmd.c
index d551653537b4..9c57eefe78fb 100644
--- a/drivers/staging/vt6655/wcmd.c
+++ b/drivers/staging/vt6655/wcmd.c
@@ -233,7 +233,7 @@ s_vProbeChannel(
  *
  *
  * Return Value:
- *    A ptr to Tx frame or NULL on allocation failue
+ *    A ptr to Tx frame or NULL on allocation failure
  *
  -*/
 
diff --git a/drivers/staging/vt6656/wmgr.c b/drivers/staging/vt6656/wmgr.c
index bc808ef7bd21..a69b88313948 100644
--- a/drivers/staging/vt6656/wmgr.c
+++ b/drivers/staging/vt6656/wmgr.c
@@ -3095,7 +3095,7 @@ struct vnt_tx_mgmt *s_MgrMakeProbeResponse(struct vnt_private *pDevice,
  *
  *
  * Return Value:
- *    A ptr to frame or NULL on allocation failue
+ *    A ptr to frame or NULL on allocation failure
  *
 -*/
 
-- 
cgit 


From e0e2615af2d0e588872ab65866d879e2dcd1c71b Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Mon, 16 Sep 2013 09:58:07 +0900
Subject: staging: rtl8192e: Fix typo in rtl8192e/dot11d.h

Correct spelling typo in comment

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192e/dot11d.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8192e/dot11d.h b/drivers/staging/rtl8192e/dot11d.h
index 71f4549a378f..fb7683fa5ffd 100644
--- a/drivers/staging/rtl8192e/dot11d.h
+++ b/drivers/staging/rtl8192e/dot11d.h
@@ -38,7 +38,7 @@ enum dot11d_state {
 /**
  * struct rt_dot11d_info * @CountryIeLen: value greater than 0 if @CountryIeBuf contains
  *		  valid country information element.
- * @chanell_map: holds channel values
+ * @channel_map: holds channel values
  *		0 - invalid,
  *		1 - valid (active scan),
  *		2 - valid (passive scan)
-- 
cgit 


From d66caada5a69443677841b487125752f9fcea126 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Tue, 17 Sep 2013 19:54:35 +0100
Subject: staging: vt6656: desc.h remove typedef struct tagSTxBufHead to rxtx.h

In code it is referred to as fifo to renamed to
typedef struct tagSTxBufHead -> struct vnt_tx_fifo_head

This is only needed by rxtc.c so moved to rxtx.h

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/desc.h |  9 --------
 drivers/staging/vt6656/rxtx.c | 52 ++++++++++++++++++++++++++++---------------
 drivers/staging/vt6656/rxtx.h | 12 ++++++----
 3 files changed, 42 insertions(+), 31 deletions(-)

diff --git a/drivers/staging/vt6656/desc.h b/drivers/staging/vt6656/desc.h
index 4675135aa258..afe7074c3037 100644
--- a/drivers/staging/vt6656/desc.h
+++ b/drivers/staging/vt6656/desc.h
@@ -146,15 +146,6 @@
 /*
  * TX FIFO header
  */
-typedef struct tagSTxBufHead {
-	u32 adwTxKey[4];
-    u16    wFIFOCtl;
-    u16    wTimeStamp;
-    u16    wFragCtl;
-    u16    wReserved;
-} __attribute__ ((__packed__))
-STxBufHead, *PSTxBufHead;
-typedef const STxBufHead *PCSTxBufHead;
 
 typedef struct tagSTxShortBufHead {
     u16    wFIFOCtl;
diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index fb743a8811bb..a733e3b7f36a 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -844,13 +844,14 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
 	void *rts_cts, u32 cbFrameSize, int bNeedACK, u32 uDMAIdx,
 	struct ethhdr *psEthHeader, bool need_rts)
 {
+	struct vnt_tx_fifo_head *pFifoHead =
+				(struct vnt_tx_fifo_head *)pTxBufHead;
 	union vnt_tx_data_head *head = rts_cts;
 	u32 cbMACHdLen = WLAN_HDR_ADDR3_LEN; /* 24 */
 	u16 wFifoCtl;
 	u8 byFBOption = AUTO_FB_NONE;
 
     //DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"s_vGenerateTxParameter...\n");
-    PSTxBufHead pFifoHead = (PSTxBufHead)pTxBufHead;
     pFifoHead->wReserved = wCurrentRate;
     wFifoCtl = pFifoHead->wFIFOCtl;
 
@@ -953,11 +954,12 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
 */
 
 static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
-	struct vnt_tx_buffer *pTxBufHead, int bNeedEncryption,
+	struct vnt_tx_buffer *tx_buffer, int bNeedEncryption,
 	u32 uSkbPacketLen, u32 uDMAIdx,	struct ethhdr *psEthHeader,
 	u8 *pPacket, PSKeyItem pTransmitKey, u32 uNodeIndex, u16 wCurrentRate,
 	u32 *pcbHeaderLen, u32 *pcbTotalLen)
 {
+	struct vnt_tx_fifo_head *pTxBufHead = &tx_buffer->fifo_head;
 	struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
 	u32 cbFrameSize, cbFrameBodySize;
 	u32 cb802_1_H_len;
@@ -980,7 +982,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 	u32 dwMICKey0, dwMICKey1, dwMIC_Priority;
 	u32 *pdwMIC_L, *pdwMIC_R;
 	int bSoftWEP = false;
-
 	pvRrvTime = pMICHDR = pvTxDataHd = NULL;
 
 	if (bNeedEncryption && pTransmitKey->pvKeyTable) {
@@ -1103,7 +1104,8 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
     }
 
     pbyTxBufferAddr = (u8 *) &(pTxBufHead->adwTxKey[0]);
-    wTxBufSize = sizeof(STxBufHead);
+	wTxBufSize = sizeof(struct vnt_tx_fifo_head);
+
     if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
         if (byFBOption == AUTO_FB_NONE) {
             if (bRTS == true) {//RTS_need
@@ -1467,8 +1469,8 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
 {
 	struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
 	struct vnt_tx_buffer *pTX_Buffer;
-	PSTxBufHead pTxBufHead;
 	struct vnt_usb_send_context *pContext;
+	struct vnt_tx_fifo_head *pTxBufHead;
 	struct ieee80211_hdr *pMACHeader;
 	struct ethhdr sEthHeader;
 	u8 byPktType, *pbyTxBufferAddr;
@@ -1490,10 +1492,10 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
     }
 
 	pTX_Buffer = (struct vnt_tx_buffer *)&pContext->Data[0];
-    pbyTxBufferAddr = (u8 *)&(pTX_Buffer->adwTxKey[0]);
     cbFrameBodySize = pPacket->cbPayloadLen;
-    pTxBufHead = (PSTxBufHead) pbyTxBufferAddr;
-    wTxBufSize = sizeof(STxBufHead);
+	pTxBufHead = &pTX_Buffer->fifo_head;
+	pbyTxBufferAddr = (u8 *)&pTxBufHead->adwTxKey[0];
+	wTxBufSize = sizeof(struct vnt_tx_fifo_head);
 
     if (pDevice->byBBType == BB_TYPE_11A) {
         wCurrentRate = RATE_6M;
@@ -1725,10 +1727,14 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
     pContext->uBufLen = (u16)cbReqCount + 4;  //USB header
 
     if (WLAN_GET_FC_TODS(pMACHeader->frame_control) == 0) {
-        s_vSaveTxPktInfo(pDevice, (u8) (pTX_Buffer->byPKTNO & 0x0F), &(pMACHeader->addr1[0]), (u16)cbFrameSize, pTX_Buffer->wFIFOCtl);
+	s_vSaveTxPktInfo(pDevice, (u8)(pTX_Buffer->byPKTNO & 0x0F),
+			&pMACHeader->addr1[0], (u16)cbFrameSize,
+			pTxBufHead->wFIFOCtl);
     }
     else {
-        s_vSaveTxPktInfo(pDevice, (u8) (pTX_Buffer->byPKTNO & 0x0F), &(pMACHeader->addr3[0]), (u16)cbFrameSize, pTX_Buffer->wFIFOCtl);
+	s_vSaveTxPktInfo(pDevice, (u8)(pTX_Buffer->byPKTNO & 0x0F),
+			&pMACHeader->addr3[0], (u16)cbFrameSize,
+			pTxBufHead->wFIFOCtl);
     }
 
     PIPEnsSendBulkOut(pDevice,pContext);
@@ -1823,6 +1829,7 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
 {
 	struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
 	struct vnt_tx_buffer *pTX_Buffer;
+	struct vnt_tx_fifo_head *pTxBufHead;
 	u8 byPktType;
 	u8 *pbyTxBufferAddr;
 	void *rts_cts = NULL;
@@ -1831,7 +1838,6 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
 	struct ieee80211_hdr *pMACHeader;
 	u32 cbHeaderSize, cbFrameBodySize;
 	int bNeedACK, bIsPSPOLL = false;
-	PSTxBufHead pTxBufHead;
 	u32 cbFrameSize;
 	u32 cbIVlen = 0, cbICVlen = 0, cbMIClen = 0, cbFCSlen = 4;
 	u32 uPadding = 0;
@@ -1872,9 +1878,9 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
     }
 
 	pTX_Buffer = (struct vnt_tx_buffer *)&pContext->Data[0];
-    pbyTxBufferAddr = (u8 *)(&pTX_Buffer->adwTxKey[0]);
-    pTxBufHead = (PSTxBufHead) pbyTxBufferAddr;
-    wTxBufSize = sizeof(STxBufHead);
+	pTxBufHead = &pTX_Buffer->fifo_head;
+	pbyTxBufferAddr = (u8 *)&pTxBufHead->adwTxKey[0];
+	wTxBufSize = sizeof(struct vnt_tx_fifo_head);
 
     if (pDevice->byBBType == BB_TYPE_11A) {
         wCurrentRate = RATE_6M;
@@ -2181,10 +2187,14 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
     pContext->uBufLen = (u16)cbReqCount + 4;  //USB header
 
     if (WLAN_GET_FC_TODS(pMACHeader->frame_control) == 0) {
-        s_vSaveTxPktInfo(pDevice, (u8) (pTX_Buffer->byPKTNO & 0x0F), &(pMACHeader->addr1[0]), (u16)cbFrameSize, pTX_Buffer->wFIFOCtl);
+	s_vSaveTxPktInfo(pDevice, (u8)(pTX_Buffer->byPKTNO & 0x0F),
+			&pMACHeader->addr1[0], (u16)cbFrameSize,
+			pTxBufHead->wFIFOCtl);
     }
     else {
-        s_vSaveTxPktInfo(pDevice, (u8) (pTX_Buffer->byPKTNO & 0x0F), &(pMACHeader->addr3[0]), (u16)cbFrameSize, pTX_Buffer->wFIFOCtl);
+	s_vSaveTxPktInfo(pDevice, (u8)(pTX_Buffer->byPKTNO & 0x0F),
+			&pMACHeader->addr3[0], (u16)cbFrameSize,
+			pTxBufHead->wFIFOCtl);
     }
     PIPEnsSendBulkOut(pDevice,pContext);
     return ;
@@ -2566,7 +2576,10 @@ int nsDMA_tx_packet(struct vnt_private *pDevice,
     pContext->Type = CONTEXT_DATA_PACKET;
     pContext->uBufLen = (u16)BytesToWrite + 4 ; //USB header
 
-    s_vSaveTxPktInfo(pDevice, (u8) (pTX_Buffer->byPKTNO & 0x0F), &(pContext->sEthHeader.h_dest[0]), (u16) (BytesToWrite-uHeaderLen), pTX_Buffer->wFIFOCtl);
+    s_vSaveTxPktInfo(pDevice, (u8)(pTX_Buffer->byPKTNO & 0x0F),
+			&pContext->sEthHeader.h_dest[0],
+			(u16)(BytesToWrite-uHeaderLen),
+			pTX_Buffer->fifo_head.wFIFOCtl);
 
     status = PIPEnsSendBulkOut(pDevice,pContext);
 
@@ -2717,7 +2730,10 @@ int bRelayPacketSend(struct vnt_private *pDevice, u8 *pbySkbData, u32 uDataLen,
     pContext->Type = CONTEXT_DATA_PACKET;
     pContext->uBufLen = (u16)BytesToWrite + 4 ; //USB header
 
-    s_vSaveTxPktInfo(pDevice, (u8) (pTX_Buffer->byPKTNO & 0x0F), &(pContext->sEthHeader.h_dest[0]), (u16) (BytesToWrite-uHeaderLen), pTX_Buffer->wFIFOCtl);
+    s_vSaveTxPktInfo(pDevice, (u8)(pTX_Buffer->byPKTNO & 0x0F),
+		&pContext->sEthHeader.h_dest[0],
+		(u16)(BytesToWrite - uHeaderLen),
+		pTX_Buffer->fifo_head.wFIFOCtl);
 
     status = PIPEnsSendBulkOut(pDevice,pContext);
 
diff --git a/drivers/staging/vt6656/rxtx.h b/drivers/staging/vt6656/rxtx.h
index 4bbee1c2fcac..137e62d47472 100644
--- a/drivers/staging/vt6656/rxtx.h
+++ b/drivers/staging/vt6656/rxtx.h
@@ -180,10 +180,7 @@ union vnt_tx_data_head {
 	struct vnt_cts_fb cts_g_fb;
 };
 
-struct vnt_tx_buffer {
-	u8 byType;
-	u8 byPKTNO;
-	u16 wTxByteCount;
+struct vnt_tx_fifo_head {
 	u32 adwTxKey[4];
 	u16 wFIFOCtl;
 	u16 wTimeStamp;
@@ -191,6 +188,13 @@ struct vnt_tx_buffer {
 	u16 wReserved;
 } __packed;
 
+struct vnt_tx_buffer {
+	u8 byType;
+	u8 byPKTNO;
+	u16 wTxByteCount;
+	struct vnt_tx_fifo_head fifo_head;
+} __packed;
+
 struct vnt_beacon_buffer {
 	u8 byType;
 	u8 byPKTNO;
-- 
cgit 


From 8e344c8847c6d428a9aa0f07213e25212bd7bfef Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Tue, 17 Sep 2013 19:58:11 +0100
Subject: staging: vt6656: rxtx.c s_vGenerateTxParameter replace pTxBufHead
 void pointer.

with struct vnt_tx_buffer and attach vnt_tx_fifo_head to pTX_Buffer structure.

The the calling pbyTxBufferAddr points to the same address as
vnt_tx_buffer->fifo_head and is still in use.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/rxtx.c | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index a733e3b7f36a..2a9deb6273fc 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -99,9 +99,9 @@ static void s_vSaveTxPktInfo(struct vnt_private *pDevice, u8 byPktNum,
 static void *s_vGetFreeContext(struct vnt_private *pDevice);
 
 static void s_vGenerateTxParameter(struct vnt_private *pDevice,
-	u8 byPktType, u16 wCurrentRate,	void *pTxBufHead, void *pvRrvTime,
-	void *rts_cts, u32 cbFrameSize, int bNeedACK, u32 uDMAIdx,
-	struct ethhdr *psEthHeader, bool need_rts);
+	u8 byPktType, u16 wCurrentRate,	struct vnt_tx_buffer *tx_buffer,
+	void *pvRrvTime, void *rts_cts, u32 cbFrameSize, int bNeedACK,
+	u32 uDMAIdx, struct ethhdr *psEthHeader, bool need_rts);
 
 static u32 s_uFillDataHead(struct vnt_private *pDevice,
 	u8 byPktType, u16 wCurrentRate, void *pTxDataHead, u32 cbFrameLength,
@@ -840,12 +840,11 @@ static void s_vFillCTSHead(struct vnt_private *pDevice, u32 uDMAIdx,
 -*/
 
 static void s_vGenerateTxParameter(struct vnt_private *pDevice,
-	u8 byPktType, u16 wCurrentRate,	void *pTxBufHead, void *pvRrvTime,
-	void *rts_cts, u32 cbFrameSize, int bNeedACK, u32 uDMAIdx,
-	struct ethhdr *psEthHeader, bool need_rts)
+	u8 byPktType, u16 wCurrentRate,	struct vnt_tx_buffer *tx_buffer,
+	void *pvRrvTime, void *rts_cts, u32 cbFrameSize, int bNeedACK,
+	u32 uDMAIdx, struct ethhdr *psEthHeader, bool need_rts)
 {
-	struct vnt_tx_fifo_head *pFifoHead =
-				(struct vnt_tx_fifo_head *)pTxBufHead;
+	struct vnt_tx_fifo_head *pFifoHead = &tx_buffer->fifo_head;
 	union vnt_tx_data_head *head = rts_cts;
 	u32 cbMACHdLen = WLAN_HDR_ADDR3_LEN; /* 24 */
 	u16 wFifoCtl;
@@ -1237,7 +1236,7 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 
     //Fill FIFO,RrvTime,RTS,and CTS
     s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
-		(void *)pbyTxBufferAddr, pvRrvTime, rts_cts,
+		tx_buffer, pvRrvTime, rts_cts,
 		cbFrameSize, bNeedACK, uDMAIdx, psEthHeader, bRTS);
     //Fill DataHead
     uDuration = s_uFillDataHead(pDevice, byPktType, wCurrentRate, pvTxDataHd, cbFrameSize, uDMAIdx, bNeedACK,
@@ -1639,7 +1638,7 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
 
 	/* Fill FIFO,RrvTime,RTS,and CTS */
 	s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
-		pbyTxBufferAddr, pvRrvTime, rts_cts,
+		pTX_Buffer, pvRrvTime, rts_cts,
 		cbFrameSize, bNeedACK, TYPE_TXDMA0, &sEthHeader, false);
 
     //Fill DataHead
@@ -2053,7 +2052,7 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
 
 	/* Fill FIFO,RrvTime,RTS,and CTS */
 	s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
-		pbyTxBufferAddr, pvRrvTime, rts_cts,
+		pTX_Buffer, pvRrvTime, rts_cts,
 		cbFrameSize, bNeedACK, TYPE_TXDMA0, &sEthHeader, false);
 
     //Fill DataHead
-- 
cgit 


From f2be6354487b3ebb12b5a190cd397ef205e7362d Mon Sep 17 00:00:00 2001
From: Shalin Mehta <shalinmehta85@gmail.com>
Date: Tue, 17 Sep 2013 00:42:17 -0700
Subject: Staging: bcm: PHSModule.c: Matching the function definition with
 function declaration

The function implementations of the PHSModule didn't match with the declaration. The functions are static
in the declaration but in the implemntation they are non-static

Signed-off-by: Shalin Mehta <shalinmehta85@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/bcm/PHSModule.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/bcm/PHSModule.c b/drivers/staging/bcm/PHSModule.c
index af5d22faa7f0..56c5bee6514e 100644
--- a/drivers/staging/bcm/PHSModule.c
+++ b/drivers/staging/bcm/PHSModule.c
@@ -596,7 +596,7 @@ ULONG PhsDeleteSFRules(IN void *pvContext, IN B_UINT16 uiVcid)
  * 0 if successful,
  * >0 Error.
  */
-ULONG PhsCompress(IN void *pvContext,
+static ULONG PhsCompress(IN void *pvContext,
 		IN B_UINT16 uiVcid,
 		IN B_UINT16 uiClsId,
 		IN void *pvInputBuffer,
@@ -677,7 +677,7 @@ ULONG PhsCompress(IN void *pvContext,
  * 0 if successful,
  * >0 Error.
  */
-ULONG PhsDeCompress(IN void *pvContext,
+static ULONG PhsDeCompress(IN void *pvContext,
 		IN B_UINT16 uiVcid,
 		IN void *pvInputBuffer,
 		OUT void *pvOutputBuffer,
@@ -829,7 +829,7 @@ UINT GetServiceFlowEntry(IN struct bcm_phs_table *psServiceFlowTable,
 	return PHS_INVALID_TABLE_INDEX;
 }
 
-UINT GetClassifierEntry(IN struct bcm_phs_classifier_table *pstClassifierTable,
+static UINT GetClassifierEntry(IN struct bcm_phs_classifier_table *pstClassifierTable,
 			IN B_UINT32 uiClsid, enum bcm_phs_classifier_context eClsContext,
 			OUT struct bcm_phs_classifier_entry **ppstClassifierEntry)
 {
@@ -880,7 +880,7 @@ static UINT GetPhsRuleEntry(IN struct bcm_phs_classifier_table *pstClassifierTab
 	return PHS_INVALID_TABLE_INDEX;
 }
 
-UINT CreateSFToClassifierRuleMapping(IN B_UINT16 uiVcid, IN B_UINT16  uiClsId,
+static UINT CreateSFToClassifierRuleMapping(IN B_UINT16 uiVcid, IN B_UINT16  uiClsId,
 				IN struct bcm_phs_table *psServiceFlowTable,
 				struct bcm_phs_rule *psPhsRule,
 				B_UINT8 u8AssociatedPHSI)
@@ -913,7 +913,7 @@ UINT CreateSFToClassifierRuleMapping(IN B_UINT16 uiVcid, IN B_UINT16  uiClsId,
 	return uiStatus;
 }
 
-UINT CreateClassiferToPHSRuleMapping(IN B_UINT16 uiVcid,
+static UINT CreateClassiferToPHSRuleMapping(IN B_UINT16 uiVcid,
 				IN B_UINT16 uiClsId,
 				IN struct bcm_phs_entry *pstServiceFlowEntry,
 				struct bcm_phs_rule *psPhsRule,
@@ -1239,7 +1239,7 @@ void DumpPhsRules(struct bcm_phs_extension *pDeviceExtension)
  *			header.
  *	0	-If PHS rule is NULL.If PHSI is 0 indicateing packet as uncompressed.
  */
-int phs_decompress(unsigned char *in_buf,
+static int phs_decompress(unsigned char *in_buf,
 		unsigned char *out_buf,
 		struct bcm_phs_rule *decomp_phs_rules,
 		UINT *header_size)
-- 
cgit 


From ffb324aa16692148cb2ee9019e863e0b9bc6b321 Mon Sep 17 00:00:00 2001
From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Sun, 22 Sep 2013 00:27:49 +0200
Subject: staging: winbond: Change variable type to bool

The variable Trigger is only assigned the values true and false.
Change its type to bool.

The simplified semantic patch that find this problem is as
follows (http://coccinelle.lip6.fr/):

@exists@
type T;
identifier b;
@@
- T
+ bool
  b = ...;
  ... when any
  b = \(true\|false\)

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/winbond/wb35tx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/winbond/wb35tx.c b/drivers/staging/winbond/wb35tx.c
index 30a77ccfe480..708c5b05f86c 100644
--- a/drivers/staging/winbond/wb35tx.c
+++ b/drivers/staging/winbond/wb35tx.c
@@ -180,7 +180,7 @@ void Wb35Tx_CurrentTime(struct wbsoft_priv *adapter, u32 TimeCount)
 {
 	struct hw_data *pHwData = &adapter->sHwData;
 	struct wb35_tx *pWb35Tx = &pHwData->Wb35Tx;
-	unsigned char Trigger = false;
+	bool Trigger = false;
 
 	if (pWb35Tx->TxTimer > TimeCount)
 		Trigger = true;
-- 
cgit 


From d7eede022e709704c7f19c4f1c502aac4d3f30f8 Mon Sep 17 00:00:00 2001
From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Sun, 22 Sep 2013 00:27:48 +0200
Subject: staging: vt6656: Change variable type to bool

The variables bMultiBand and bKeyTableFull are only assigned the
values true and false. Change its type to bool.

The simplified semantic patch that find this problem is as
follows (http://coccinelle.lip6.fr/):

@exists@
type T;
identifier b;
@@
- T
+ bool
  b = ...;
  ... when any
  b = \(true\|false\)

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/channel.c | 2 +-
 drivers/staging/vt6656/hostap.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/vt6656/channel.c b/drivers/staging/vt6656/channel.c
index 5158ff4b346a..e430b35463b6 100644
--- a/drivers/staging/vt6656/channel.c
+++ b/drivers/staging/vt6656/channel.c
@@ -403,7 +403,7 @@ exit:
 
 void CHvInitChannelTable(struct vnt_private *pDevice)
 {
-	int bMultiBand = false;
+	bool bMultiBand = false;
 	int ii;
 
     for (ii = 1; ii <= CB_MAX_CHANNEL; ii++)
diff --git a/drivers/staging/vt6656/hostap.c b/drivers/staging/vt6656/hostap.c
index c699a3058b39..7d96fe7a3e41 100644
--- a/drivers/staging/vt6656/hostap.c
+++ b/drivers/staging/vt6656/hostap.c
@@ -414,7 +414,7 @@ static int hostap_set_encryption(struct vnt_private *pDevice,
 	int ret = 0;
 	s32 iNodeIndex = -1;
 	int ii;
-	int bKeyTableFull = false;
+	bool bKeyTableFull = false;
 	u16 wKeyCtl = 0;
 
 	param->u.crypt.err = 0;
-- 
cgit 


From b6c5d7715df1aac2be9979253a1c7403b456dd11 Mon Sep 17 00:00:00 2001
From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Sun, 22 Sep 2013 00:27:47 +0200
Subject: staging: rtl8187se: Change variable type to bool

The variable ownbit_flag is only assigned the values true and false.
Change its type to bool.

The simplified semantic patch that find this problem is as
follows (http://coccinelle.lip6.fr/):

@exists@
type T;
identifier b;
@@
- T
+ bool
  b = ...;
  ... when any
  b = \(true\|false\)

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/r8180_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8187se/r8180_core.c b/drivers/staging/rtl8187se/r8180_core.c
index 5947a6f8e16f..35412d2922e2 100644
--- a/drivers/staging/rtl8187se/r8180_core.c
+++ b/drivers/staging/rtl8187se/r8180_core.c
@@ -1704,7 +1704,7 @@ short rtl8180_tx(struct net_device *dev, u8 *txbuf, int len, int priority,
 	u16			RtsDur = 0;
 	u16			ThisFrameTime = 0;
 	u16			TxDescDuration = 0;
-	u8			ownbit_flag = false;
+	bool			ownbit_flag = false;
 
 	switch (priority) {
 	case MANAGE_PRIORITY:
-- 
cgit 


From 14ab3daaea04da644f96ad66902013fb72b99406 Mon Sep 17 00:00:00 2001
From: Xie XiuQi <xiexiuqi@huawei.com>
Date: Thu, 19 Sep 2013 15:04:57 -0700
Subject: staging: olpc_dcon: remove unnecessary work pending test

Remove unnecessary work pending test before calling schedule_work().
It has been tested in queue_work_on() already. No functional changed.

Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Cc: Jens Frederich <jfrederich@gmail.com>
Cc: Daniel Drake <dsd@laptop.org>
Cc: Jon Nettleton <jon.nettleton@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/olpc_dcon/olpc_dcon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/olpc_dcon/olpc_dcon.c b/drivers/staging/olpc_dcon/olpc_dcon.c
index 198595e8d742..92b02891704d 100644
--- a/drivers/staging/olpc_dcon/olpc_dcon.c
+++ b/drivers/staging/olpc_dcon/olpc_dcon.c
@@ -383,7 +383,7 @@ static void dcon_set_source(struct dcon_priv *dcon, int arg)
 
 	dcon->pending_src = arg;
 
-	if ((dcon->curr_src != arg) && !work_pending(&dcon->switch_source))
+	if (dcon->curr_src != arg)
 		schedule_work(&dcon->switch_source);
 }
 
-- 
cgit 


From 1583aeb53ceac99fb0f92bca08196803d7250b95 Mon Sep 17 00:00:00 2001
From: navin patidar <navinp@cdac.in>
Date: Tue, 10 Sep 2013 10:44:07 +0530
Subject: staging: usbip: stub_main: correctly handle return value

ret == 0 means success, anything else is failure.

Signed-off-by: navin patidar <navinp@cdac.in>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/usbip/stub_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/usbip/stub_main.c b/drivers/staging/usbip/stub_main.c
index 33027cce6700..baf857f7cc88 100644
--- a/drivers/staging/usbip/stub_main.c
+++ b/drivers/staging/usbip/stub_main.c
@@ -255,14 +255,14 @@ static int __init usbip_host_init(void)
 	}
 
 	ret = usb_register(&stub_driver);
-	if (ret < 0) {
+	if (ret) {
 		pr_err("usb_register failed %d\n", ret);
 		goto err_usb_register;
 	}
 
 	ret = driver_create_file(&stub_driver.drvwrap.driver,
 				 &driver_attr_match_busid);
-	if (ret < 0) {
+	if (ret) {
 		pr_err("driver_create_file failed\n");
 		goto err_create_file;
 	}
-- 
cgit 


From 4d42195021d8cb37600b2ecfaba982dd96e7fc01 Mon Sep 17 00:00:00 2001
From: navin patidar <navinp@cdac.in>
Date: Tue, 10 Sep 2013 10:43:39 +0530
Subject: staging: usbip: vhci_hcd: correctly handle return value

ret == 0 means success, anything else is failure.

Signed-off-by: navin patidar <navinp@cdac.in>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/usbip/vhci_hcd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/usbip/vhci_hcd.c b/drivers/staging/usbip/vhci_hcd.c
index d7974cb2cc6f..b3c9217c38e9 100644
--- a/drivers/staging/usbip/vhci_hcd.c
+++ b/drivers/staging/usbip/vhci_hcd.c
@@ -1146,11 +1146,11 @@ static int __init vhci_hcd_init(void)
 		return -ENODEV;
 
 	ret = platform_driver_register(&vhci_driver);
-	if (ret < 0)
+	if (ret)
 		goto err_driver_register;
 
 	ret = platform_device_register(&the_pdev);
-	if (ret < 0)
+	if (ret)
 		goto err_platform_device_register;
 
 	pr_info(DRIVER_DESC " v" USBIP_VERSION "\n");
-- 
cgit 


From 0e3633f60422fb6075ca74fb9032471afdb4c99b Mon Sep 17 00:00:00 2001
From: navin patidar <navinp@cdac.in>
Date: Tue, 10 Sep 2013 10:36:46 +0530
Subject: staging: usbip: vhci_hcd: remove check for dma

vhci_hcd is a virtual usb host controller, so no need to
check for dma.

Signed-off-by: navin patidar <navinp@cdac.in>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/usbip/vhci_hcd.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/staging/usbip/vhci_hcd.c b/drivers/staging/usbip/vhci_hcd.c
index b3c9217c38e9..e810ad53e2ac 100644
--- a/drivers/staging/usbip/vhci_hcd.c
+++ b/drivers/staging/usbip/vhci_hcd.c
@@ -999,12 +999,6 @@ static int vhci_hcd_probe(struct platform_device *pdev)
 
 	usbip_dbg_vhci_hc("name %s id %d\n", pdev->name, pdev->id);
 
-	/* will be removed */
-	if (pdev->dev.dma_mask) {
-		dev_info(&pdev->dev, "vhci_hcd DMA not supported\n");
-		return -EINVAL;
-	}
-
 	/*
 	 * Allocate and initialize hcd.
 	 * Our private data is also allocated automatically.
-- 
cgit 


From 6165cc517f7a9b384dcaf1a5b91604275db30075 Mon Sep 17 00:00:00 2001
From: Elad Wexler <eladwexler77@yahoo.com>
Date: Thu, 5 Sep 2013 12:07:10 +0300
Subject: Staging: usbip: stub_dev: Fixed checkpatch warnings

Coding style issues

Signed-off-by: Elad Wexler <eladwexler77@yahoo.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/usbip/stub_dev.c | 26 +++++++++++++++-----------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/usbip/stub_dev.c b/drivers/staging/usbip/stub_dev.c
index d8957a556626..76a1ff0e6275 100644
--- a/drivers/staging/usbip/stub_dev.c
+++ b/drivers/staging/usbip/stub_dev.c
@@ -357,8 +357,9 @@ static int stub_probe(struct usb_interface *interface,
 	busid_priv = get_busid_priv(udev_busid);
 	if (!busid_priv || (busid_priv->status == STUB_BUSID_REMOV) ||
 	    (busid_priv->status == STUB_BUSID_OTHER)) {
-		dev_info(&interface->dev, "%s is not in match_busid table... "
-			 "skip!\n", udev_busid);
+		dev_info(&interface->dev,
+			"%s is not in match_busid table... skip!\n",
+			udev_busid);
 
 		/*
 		 * Return value should be ENODEV or ENOXIO to continue trying
@@ -375,8 +376,10 @@ static int stub_probe(struct usb_interface *interface,
 	}
 
 	if (!strcmp(udev->bus->bus_name, "vhci_hcd")) {
-		dev_dbg(&udev->dev, "%s is attached on vhci_hcd... skip!\n",
-			 udev_busid);
+		dev_dbg(&udev->dev,
+			"%s is attached on vhci_hcd... skip!\n",
+			udev_busid);
+
 		return -ENODEV;
 	}
 
@@ -386,10 +389,10 @@ static int stub_probe(struct usb_interface *interface,
 			return -ENODEV;
 
 		busid_priv->interf_count++;
-		dev_info(&interface->dev, "usbip-host: register new interface "
-			 "(bus %u dev %u ifn %u)\n",
-			 udev->bus->busnum, udev->devnum,
-			 interface->cur_altsetting->desc.bInterfaceNumber);
+		dev_info(&interface->dev,
+			"usbip-host: register new interface (bus %u dev %u ifn %u)\n",
+			udev->bus->busnum, udev->devnum,
+			interface->cur_altsetting->desc.bInterfaceNumber);
 
 		/* set private data to usb_interface */
 		usb_set_intfdata(interface, sdev);
@@ -412,9 +415,10 @@ static int stub_probe(struct usb_interface *interface,
 	if (!sdev)
 		return -ENOMEM;
 
-	dev_info(&interface->dev, "usbip-host: register new device "
-		 "(bus %u dev %u ifn %u)\n", udev->bus->busnum, udev->devnum,
-		 interface->cur_altsetting->desc.bInterfaceNumber);
+	dev_info(&interface->dev,
+		"usbip-host: register new device (bus %u dev %u ifn %u)\n",
+		udev->bus->busnum, udev->devnum,
+		interface->cur_altsetting->desc.bInterfaceNumber);
 
 	busid_priv->interf_count = 0;
 	busid_priv->shutdown_busid = 0;
-- 
cgit 


From 82bd3f1ba0e7f898efad08213b68e43085c29e2f Mon Sep 17 00:00:00 2001
From: Dominik Paulus <dominik.paulus@fau.de>
Date: Thu, 19 Sep 2013 14:47:41 +0200
Subject: staging: usbip: Fix build with --with-tcp-wrappers

With --with-tcp-wrappers=no specified, the build system reset LIBS to
the empty string and thus fails to link against libsysfs.

Signed-off-by: Dominik Paulus <dominik.paulus@fau.de>
Signed-off-by: Tobias Polzer <tobias.polzer@fau.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/usbip/userspace/configure.ac | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/staging/usbip/userspace/configure.ac b/drivers/staging/usbip/userspace/configure.ac
index 2be4060f9036..0ee5d9263996 100644
--- a/drivers/staging/usbip/userspace/configure.ac
+++ b/drivers/staging/usbip/userspace/configure.ac
@@ -70,7 +70,6 @@ AC_ARG_WITH([tcp-wrappers],
 		       [AC_MSG_RESULT([not found]); exit 1])
 	     else
 		     AC_MSG_RESULT([no]);
-		     LIBS="$saved_LIBS"
 	     fi],
 	    dnl [ACTION-IF-NOT-GIVEN]
 	    [AC_MSG_RESULT([(default)])
-- 
cgit 


From 414ef695c491ae1d496d10de0660550fe79abdbf Mon Sep 17 00:00:00 2001
From: Tobias Polzer <tobias.polzer@fau.de>
Date: Thu, 19 Sep 2013 10:39:38 +0200
Subject: staging: usbip: Fix build on Debian ppc

One missing include was added.

Signed-off-by: Dominik Paulus <dominik.paulus@fau.de>
Signed-off-by: Tobias Polzer <tobias.polzer@fau.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/usbip/userspace/src/usbip_network.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/staging/usbip/userspace/src/usbip_network.c b/drivers/staging/usbip/userspace/src/usbip_network.c
index c39a07f1d38c..5b3c20b5f7dc 100644
--- a/drivers/staging/usbip/userspace/src/usbip_network.c
+++ b/drivers/staging/usbip/userspace/src/usbip_network.c
@@ -25,6 +25,10 @@
 #include <netinet/tcp.h>
 #include <unistd.h>
 
+#ifdef HAVE_LIBWRAP
+#include <tcpd.h>
+#endif
+
 #include "usbip_common.h"
 #include "usbip_network.h"
 
-- 
cgit 


From f49ad35cd1241a278f073b6674e38eef7dd78c11 Mon Sep 17 00:00:00 2001
From: Dominik Paulus <dominik.paulus@fau.de>
Date: Fri, 13 Sep 2013 11:55:51 +0200
Subject: staging: usbip: Fix IPv6 support in usbipd

getaddrinfo() leaves the order of the returned addrinfo structs
unspecified. On systems with bindv6only disabled (this is the default),
PF_INET6 sockets bind to IPv4, too. Thus, IPv6 support in usbipd was
broken when getaddrinfo returned first IPv4 and then IPv6 addrinfos, as
the IPv6 bind failed with EADDRINUSE.

This patch uses seperate sockets for IPv4 and IPv6 and sets IPV6_V6ONLY
on all IPv6 sockets. Two command line arguments, -4 and -6 were added to
manually select the socket family.

Signed-off-by: Tobias Polzer <tobias.polzer@fau.de>
Signed-off-by: Dominik Paulus <dominik.paulus@fau.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../staging/usbip/userspace/src/usbip_network.c    | 12 ++++
 .../staging/usbip/userspace/src/usbip_network.h    |  1 +
 drivers/staging/usbip/userspace/src/usbipd.c       | 69 ++++++++++++++++------
 3 files changed, 64 insertions(+), 18 deletions(-)

diff --git a/drivers/staging/usbip/userspace/src/usbip_network.c b/drivers/staging/usbip/userspace/src/usbip_network.c
index 5b3c20b5f7dc..b4c37e76a6e0 100644
--- a/drivers/staging/usbip/userspace/src/usbip_network.c
+++ b/drivers/staging/usbip/userspace/src/usbip_network.c
@@ -243,6 +243,18 @@ int usbip_net_set_keepalive(int sockfd)
 	return ret;
 }
 
+int usbip_net_set_v6only(int sockfd)
+{
+	const int val = 1;
+	int ret;
+
+	ret = setsockopt(sockfd, IPPROTO_IPV6, IPV6_V6ONLY, &val, sizeof(val));
+	if (ret < 0)
+		dbg("setsockopt: IPV6_V6ONLY");
+
+	return ret;
+}
+
 /*
  * IPv6 Ready
  */
diff --git a/drivers/staging/usbip/userspace/src/usbip_network.h b/drivers/staging/usbip/userspace/src/usbip_network.h
index 2d0e4277b62b..f19ae19799b4 100644
--- a/drivers/staging/usbip/userspace/src/usbip_network.h
+++ b/drivers/staging/usbip/userspace/src/usbip_network.h
@@ -180,6 +180,7 @@ int usbip_net_recv_op_common(int sockfd, uint16_t *code);
 int usbip_net_set_reuseaddr(int sockfd);
 int usbip_net_set_nodelay(int sockfd);
 int usbip_net_set_keepalive(int sockfd);
+int usbip_net_set_v6only(int sockfd);
 int usbip_net_tcp_connect(char *hostname, char *port);
 
 #endif /* __USBIP_NETWORK_H */
diff --git a/drivers/staging/usbip/userspace/src/usbipd.c b/drivers/staging/usbip/userspace/src/usbipd.c
index 1c76cfd274d0..7980f8b5517b 100644
--- a/drivers/staging/usbip/userspace/src/usbipd.c
+++ b/drivers/staging/usbip/userspace/src/usbipd.c
@@ -56,6 +56,13 @@ static const char usbip_version_string[] = PACKAGE_STRING;
 
 static const char usbipd_help_string[] =
 	"usage: usbipd [options]\n"
+	"\n"
+	"	-4, --ipv4\n"
+	"		Bind to IPv4. Default is both.\n"
+	"\n"
+	"	-6, --ipv6\n"
+	"		Bind to IPv6. Default is both.\n"
+	"\n"
 	"	-D, --daemon\n"
 	"		Run as a daemon process.\n"
 	"\n"
@@ -354,14 +361,15 @@ static void addrinfo_to_text(struct addrinfo *ai, char buf[],
 	snprintf(buf, buf_size, "%s:%s", hbuf, sbuf);
 }
 
-static int listen_all_addrinfo(struct addrinfo *ai_head, int sockfdlist[])
+static int listen_all_addrinfo(struct addrinfo *ai_head, int sockfdlist[],
+			     int maxsockfd)
 {
 	struct addrinfo *ai;
 	int ret, nsockfd = 0;
 	const size_t ai_buf_size = NI_MAXHOST + NI_MAXSERV + 2;
 	char ai_buf[ai_buf_size];
 
-	for (ai = ai_head; ai && nsockfd < MAXSOCKFD; ai = ai->ai_next) {
+	for (ai = ai_head; ai && nsockfd < maxsockfd; ai = ai->ai_next) {
 		int sock;
 		addrinfo_to_text(ai, ai_buf, ai_buf_size);
 		dbg("opening %s", ai_buf);
@@ -374,6 +382,9 @@ static int listen_all_addrinfo(struct addrinfo *ai_head, int sockfdlist[])
 
 		usbip_net_set_reuseaddr(sock);
 		usbip_net_set_nodelay(sock);
+		/* We use seperate sockets for IPv4 and IPv6
+		 * (see do_standalone_mode()) */
+		usbip_net_set_v6only(sock);
 
 		if (sock >= FD_SETSIZE) {
 			err("FD_SETSIZE: %s: sock=%d, max=%d",
@@ -402,11 +413,6 @@ static int listen_all_addrinfo(struct addrinfo *ai_head, int sockfdlist[])
 		sockfdlist[nsockfd++] = sock;
 	}
 
-	if (nsockfd == 0)
-		return -1;
-
-	dbg("listening on %d address%s", nsockfd, (nsockfd == 1) ? "" : "es");
-
 	return nsockfd;
 }
 
@@ -473,11 +479,11 @@ static void remove_pid_file()
 	}
 }
 
-static int do_standalone_mode(int daemonize)
+static int do_standalone_mode(int daemonize, int ipv4, int ipv6)
 {
 	struct addrinfo *ai_head;
 	int sockfdlist[MAXSOCKFD];
-	int nsockfd;
+	int nsockfd, family;
 	int i, terminate;
 	struct pollfd *fds;
 	struct timespec timeout;
@@ -501,21 +507,36 @@ static int do_standalone_mode(int daemonize)
 	set_signal();
 	write_pid_file();
 
-	ai_head = do_getaddrinfo(NULL, PF_UNSPEC);
+	info("starting " PROGNAME " (%s)", usbip_version_string);
+
+	/*
+	 * To suppress warnings on systems with bindv6only disabled
+	 * (default), we use seperate sockets for IPv6 and IPv4 and set
+	 * IPV6_V6ONLY on the IPv6 sockets.
+	 */
+	if (ipv4 && ipv6)
+		family = AF_UNSPEC;
+	else if (ipv4)
+		family = AF_INET;
+	else
+		family = AF_INET6;
+
+	ai_head = do_getaddrinfo(NULL, family);
 	if (!ai_head) {
 		usbip_host_driver_close();
 		return -1;
 	}
-
-	info("starting " PROGNAME " (%s)", usbip_version_string);
-
-	nsockfd = listen_all_addrinfo(ai_head, sockfdlist);
+	nsockfd = listen_all_addrinfo(ai_head, sockfdlist,
+		sizeof(sockfdlist) / sizeof(*sockfdlist));
+	freeaddrinfo(ai_head);
 	if (nsockfd <= 0) {
 		err("failed to open a listening socket");
-		freeaddrinfo(ai_head);
 		usbip_host_driver_close();
 		return -1;
 	}
+
+	dbg("listening on %d address%s", nsockfd, (nsockfd == 1) ? "" : "es");
+
 	fds = calloc(nsockfd, sizeof(struct pollfd));
 	for (i = 0; i < nsockfd; i++) {
 		fds[i].fd = sockfdlist[i];
@@ -551,7 +572,6 @@ static int do_standalone_mode(int daemonize)
 
 	info("shutting down " PROGNAME);
 	free(fds);
-	freeaddrinfo(ai_head);
 	usbip_host_driver_close();
 
 	return 0;
@@ -560,6 +580,9 @@ static int do_standalone_mode(int daemonize)
 int main(int argc, char *argv[])
 {
 	static const struct option longopts[] = {
+		{ "ipv4",     no_argument,       NULL, '4' },
+		{ "ipv6",     no_argument,       NULL, '6' },
+		{ "daemon",   no_argument,       NULL, 'D' },
 		{ "daemon",   no_argument,       NULL, 'D' },
 		{ "debug",    no_argument,       NULL, 'd' },
 		{ "pid",      optional_argument, NULL, 'P' },
@@ -576,6 +599,7 @@ int main(int argc, char *argv[])
 	} cmd;
 
 	int daemonize = 0;
+	int ipv4 = 0, ipv6 = 0;
 	int opt, rc = -1;
 	pid_file = NULL;
 
@@ -587,12 +611,18 @@ int main(int argc, char *argv[])
 
 	cmd = cmd_standalone_mode;
 	for (;;) {
-		opt = getopt_long(argc, argv, "DdP::t:hv", longopts, NULL);
+		opt = getopt_long(argc, argv, "46DdP::t:hv", longopts, NULL);
 
 		if (opt == -1)
 			break;
 
 		switch (opt) {
+		case '4':
+			ipv4 = 1;
+			break;
+		case '6':
+			ipv6 = 1;
+			break;
 		case 'D':
 			daemonize = 1;
 			break;
@@ -618,9 +648,12 @@ int main(int argc, char *argv[])
 		}
 	}
 
+	if (!ipv4 && !ipv6)
+		ipv4 = ipv6 = 1;
+
 	switch (cmd) {
 	case cmd_standalone_mode:
-		rc = do_standalone_mode(daemonize);
+		rc = do_standalone_mode(daemonize, ipv4, ipv6);
 		remove_pid_file();
 		break;
 	case cmd_version:
-- 
cgit 


From 7a0b6c62441e951af7f356d1ef34edb95c61e23b Mon Sep 17 00:00:00 2001
From: Iker Pedrosa <ikerpedrosam@gmail.com>
Date: Mon, 16 Sep 2013 15:43:21 +0200
Subject: Staging: winbond: mto: removed function declaration

The following function declarations have been removed because they aren't implemented.

Signed-off-by: Iker Pedrosa <ikerpedrosam@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/winbond/mto.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/staging/winbond/mto.c b/drivers/staging/winbond/mto.c
index 560c0ab617d1..0d0f9fb7881d 100644
--- a/drivers/staging/winbond/mto.c
+++ b/drivers/staging/winbond/mto.c
@@ -46,10 +46,7 @@ static int retryrate_rec[MTO_MAX_DATA_RATE_LEVELS];
 static u8 boSparseTxTraffic;
 
 void MTO_Init(struct wbsoft_priv *adapter);
-void TxRateReductionCtrl(struct wbsoft_priv *adapter);
 void MTO_SetTxCount(struct wbsoft_priv *adapter, u8 t0, u8 index);
-void MTO_TxFailed(struct wbsoft_priv *adapter);
-void hal_get_dto_para(struct wbsoft_priv *adapter, char *buffer);
 
 /*
  * ===========================================================================
-- 
cgit 


From 46234cc5b1e01b9caacce77e82d7faf93d6d397a Mon Sep 17 00:00:00 2001
From: Iker Pedrosa <ikerpedrosam@gmail.com>
Date: Mon, 16 Sep 2013 15:43:22 +0200
Subject: Staging: winbond: mto: avoided use of extern functions

Prototype of two functions added to the header to avoid the use of extern.

Signed-off-by: Iker Pedrosa <ikerpedrosam@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/winbond/mto.c | 4 +---
 drivers/staging/winbond/mto.h | 4 ++--
 2 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/winbond/mto.c b/drivers/staging/winbond/mto.c
index 0d0f9fb7881d..b031ecd4f3c0 100644
--- a/drivers/staging/winbond/mto.c
+++ b/drivers/staging/winbond/mto.c
@@ -21,6 +21,7 @@
 #include "wbhal.h"
 #include "wb35reg_f.h"
 #include "core.h"
+#include "mto.h"
 
 /* Declare SQ3 to rate and fragmentation threshold table */
 /* Declare fragmentation threshold table */
@@ -45,9 +46,6 @@ static int retryrate_rec[MTO_MAX_DATA_RATE_LEVELS];
 
 static u8 boSparseTxTraffic;
 
-void MTO_Init(struct wbsoft_priv *adapter);
-void MTO_SetTxCount(struct wbsoft_priv *adapter, u8 t0, u8 index);
-
 /*
  * ===========================================================================
  * MTO_Init --
diff --git a/drivers/staging/winbond/mto.h b/drivers/staging/winbond/mto.h
index a0f659cf99ff..22bb26401717 100644
--- a/drivers/staging/winbond/mto.h
+++ b/drivers/staging/winbond/mto.h
@@ -127,12 +127,12 @@ extern u16 MTO_Frag_Th_Tbl[];
 #define MTO_DATA_RATE()			MTO_Data_Rate_Tbl[MTO_RATE_LEVEL()]
 #define MTO_FRAG_TH()			MTO_Frag_Th_Tbl[MTO_FRAG_TH_LEVEL()]
 
-extern void MTO_Init(struct wbsoft_priv *);
+void MTO_Init(struct wbsoft_priv *);
+void MTO_SetTxCount(struct wbsoft_priv *adapter, u8 t0, u8 index);
 extern void MTO_PeriodicTimerExpired(struct wbsoft_priv *);
 extern void MTO_SetDTORateRange(struct wbsoft_priv *, u8 *, u8);
 extern u8 MTO_GetTxRate(struct wbsoft_priv *adapter, u32 fpdu_len);
 extern u8 MTO_GetTxFallbackRate(struct wbsoft_priv *adapter);
-extern void MTO_SetTxCount(struct wbsoft_priv *adapter, u8 t0, u8 index);
 
 #endif /* __MTO_H__ */
 
-- 
cgit 


From bd85b595fa82268be86ccc60130182ca40b92f7d Mon Sep 17 00:00:00 2001
From: Iker Pedrosa <ikerpedrosam@gmail.com>
Date: Mon, 16 Sep 2013 15:43:23 +0200
Subject: Staging: winbond: mto: deleted extern functions

Deleted declaration of external functions that weren't used on this driver.

Signed-off-by: Iker Pedrosa <ikerpedrosam@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/winbond/mto.h | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/staging/winbond/mto.h b/drivers/staging/winbond/mto.h
index 22bb26401717..8d41eeda45bf 100644
--- a/drivers/staging/winbond/mto.h
+++ b/drivers/staging/winbond/mto.h
@@ -129,10 +129,6 @@ extern u16 MTO_Frag_Th_Tbl[];
 
 void MTO_Init(struct wbsoft_priv *);
 void MTO_SetTxCount(struct wbsoft_priv *adapter, u8 t0, u8 index);
-extern void MTO_PeriodicTimerExpired(struct wbsoft_priv *);
-extern void MTO_SetDTORateRange(struct wbsoft_priv *, u8 *, u8);
-extern u8 MTO_GetTxRate(struct wbsoft_priv *adapter, u32 fpdu_len);
-extern u8 MTO_GetTxFallbackRate(struct wbsoft_priv *adapter);
 
 #endif /* __MTO_H__ */
 
-- 
cgit 


From de6c7649b867c7be172d20b2984c333c1ae211c5 Mon Sep 17 00:00:00 2001
From: Iker Pedrosa <ikerpedrosam@gmail.com>
Date: Mon, 16 Sep 2013 15:43:24 +0200
Subject: Staging: winbond: phy_calibration: first of the patches that fixes
 lines over 80 characters

First of the patches that fixes the lines over 80 characters in phy_calibration.c

Signed-off-by: Iker Pedrosa <ikerpedrosam@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/winbond/phy_calibration.c | 46 ++++++++++++++++++-------------
 1 file changed, 27 insertions(+), 19 deletions(-)

diff --git a/drivers/staging/winbond/phy_calibration.c b/drivers/staging/winbond/phy_calibration.c
index cfbfbbb53866..6635c85a0ef5 100644
--- a/drivers/staging/winbond/phy_calibration.c
+++ b/drivers/staging/winbond/phy_calibration.c
@@ -27,10 +27,12 @@
 #define DEG2RAD(X)      (0.017453 * (X))
 
 static const s32 Angles[] = {
-	FIXED(DEG2RAD(45.0)),     FIXED(DEG2RAD(26.565)),   FIXED(DEG2RAD(14.0362)),
-	FIXED(DEG2RAD(7.12502)),  FIXED(DEG2RAD(3.57633)),  FIXED(DEG2RAD(1.78991)),
-	FIXED(DEG2RAD(0.895174)), FIXED(DEG2RAD(0.447614)), FIXED(DEG2RAD(0.223811)),
-	FIXED(DEG2RAD(0.111906)), FIXED(DEG2RAD(0.055953)), FIXED(DEG2RAD(0.027977))
+	FIXED(DEG2RAD(45.0)),     FIXED(DEG2RAD(26.565)),
+	FIXED(DEG2RAD(14.0362)),  FIXED(DEG2RAD(7.12502)),
+	FIXED(DEG2RAD(3.57633)),  FIXED(DEG2RAD(1.78991)),
+	FIXED(DEG2RAD(0.895174)), FIXED(DEG2RAD(0.447614)),
+	FIXED(DEG2RAD(0.223811)), FIXED(DEG2RAD(0.111906)),
+	FIXED(DEG2RAD(0.055953)), FIXED(DEG2RAD(0.027977))
 };
 
 /****************** LOCAL FUNCTION DECLARATION SECTION **********************/
@@ -296,7 +298,8 @@ void _sin_cos(s32 angle, s32 *sin, s32 *cos)
 	}
 }
 
-static unsigned char hal_get_dxx_reg(struct hw_data *pHwData, u16 number, u32 *pValue)
+static unsigned char hal_get_dxx_reg(struct hw_data *pHwData, u16 number,
+				     u32 *pValue)
 {
 	if (number < 0x1000)
 		number += 0x1000;
@@ -304,7 +307,8 @@ static unsigned char hal_get_dxx_reg(struct hw_data *pHwData, u16 number, u32 *p
 }
 #define hw_get_dxx_reg(_A, _B, _C) hal_get_dxx_reg(_A, _B, (u32 *)_C)
 
-static unsigned char hal_set_dxx_reg(struct hw_data *pHwData, u16 number, u32 value)
+static unsigned char hal_set_dxx_reg(struct hw_data *pHwData, u16 number,
+				     u32 value)
 {
 	unsigned char ret;
 
@@ -407,7 +411,8 @@ void _rxadc_dc_offset_cancellation_winbond(struct hw_data *phw_data, u32 frequen
 	PHY_DEBUG(("[CAL]    ** adc_dc_cal_i = %d (0x%04X)\n",
 			   _s9_to_s32(val&0x000001FF), val&0x000001FF));
 	PHY_DEBUG(("[CAL]    ** adc_dc_cal_q = %d (0x%04X)\n",
-			   _s9_to_s32((val&0x0003FE00)>>9), (val&0x0003FE00)>>9));
+			   _s9_to_s32((val&0x0003FE00)>>9),
+			   (val&0x0003FE00)>>9));
 #endif
 
 	hw_get_dxx_reg(phw_data, REG_MODE_CTRL, &val);
@@ -535,7 +540,8 @@ void _txidac_dc_offset_cancellation_winbond(struct hw_data *phw_data)
 		}
 
 		PHY_DEBUG(("[CAL]    ** fix_cancel_dc_i = %d (0x%04X)\n",
-				   fix_cancel_dc_i, _s32_to_s5(fix_cancel_dc_i)));
+				   fix_cancel_dc_i,
+				   _s32_to_s5(fix_cancel_dc_i)));
 
 		if ((abs(mag_1-mag_0)*6) > mag_0)
 			break;
@@ -711,7 +717,8 @@ u8 _tx_iq_calibration_loop_winbond(struct hw_data *phw_data,
 	loop = LOOP_TIMES;
 
 	while (loop > 0) {
-		PHY_DEBUG(("[CAL] [%d.] <_tx_iq_calibration_loop>\n", (LOOP_TIMES-loop+1)));
+		PHY_DEBUG(("[CAL] [%d.] <_tx_iq_calibration_loop>\n",
+				   (LOOP_TIMES-loop+1)));
 
 		iqcal_tone_i_avg = 0;
 		iqcal_tone_q_avg = 0;
@@ -719,8 +726,8 @@ u8 _tx_iq_calibration_loop_winbond(struct hw_data *phw_data,
 			return 0;
 		for (capture_time = 0; capture_time < 10; capture_time++) {
 			/*
-			 * a. Set iqcal_mode[1:0] to 0x2 and set "calib_start" to 0x1 to
-			 *    enable "IQ calibration Mode II"
+			 * a. Set iqcal_mode[1:0] to 0x2 and set "calib_start"
+			 *    to 0x1 to enable "IQ calibration Mode II"
 			 */
 			reg_mode_ctrl &= ~(MASK_IQCAL_TONE_SEL|MASK_IQCAL_MODE);
 			reg_mode_ctrl &= ~MASK_IQCAL_MODE;
@@ -749,8 +756,8 @@ u8 _tx_iq_calibration_loop_winbond(struct hw_data *phw_data,
 			PHY_DEBUG(("[CAL]    MODE_CTRL (write) = 0x%08X\n", reg_mode_ctrl));
 
 			/*
-			 * d. Set iqcal_mode[1:0] to 0x3 and set "calib_start" to 0x1 to
-			 *    enable "IQ calibration Mode II"
+			 * d. Set iqcal_mode[1:0] to 0x3 and set "calib_start"
+			 *    to 0x1 to enable "IQ calibration Mode II"
 			 */
 			/* hw_get_dxx_reg(phw_data, REG_MODE_CTRL, &val); */
 			hw_get_dxx_reg(phw_data, REG_MODE_CTRL, &reg_mode_ctrl);
@@ -766,7 +773,7 @@ u8 _tx_iq_calibration_loop_winbond(struct hw_data *phw_data,
 			iqcal_tone_i = _s13_to_s32(val & 0x00001FFF);
 			iqcal_tone_q = _s13_to_s32((val & 0x03FFE000) >> 13);
 			PHY_DEBUG(("[CAL]    ** iqcal_tone_i = %d, iqcal_tone_q = %d\n",
-			iqcal_tone_i, iqcal_tone_q));
+					   iqcal_tone_i, iqcal_tone_q));
 			if (capture_time == 0)
 				continue;
 			else {
@@ -1146,7 +1153,8 @@ u8 _rx_iq_calibration_loop_winbond(struct hw_data *phw_data, u16 factor, u32 fre
 	/* for (loop = 0; loop < LOOP_TIMES; loop++) */
 	loop = LOOP_TIMES;
 	while (loop > 0) {
-		PHY_DEBUG(("[CAL] [%d.] <_rx_iq_calibration_loop>\n", (LOOP_TIMES-loop+1)));
+		PHY_DEBUG(("[CAL] [%d.] <_rx_iq_calibration_loop>\n",
+				   (LOOP_TIMES-loop+1)));
 		iqcal_tone_i_avg = 0;
 		iqcal_tone_q_avg = 0;
 		iqcal_image_i_avg = 0;
@@ -1199,13 +1207,13 @@ u8 _rx_iq_calibration_loop_winbond(struct hw_data *phw_data, u16 factor, u32 fre
 
 		/* d. */
 		rot_tone_i_b = (iqcal_tone_i * iqcal_tone_i +
-						iqcal_tone_q * iqcal_tone_q) / 1024;
+					iqcal_tone_q * iqcal_tone_q) / 1024;
 		rot_tone_q_b = (iqcal_tone_i * iqcal_tone_q * (-1) +
-						iqcal_tone_q * iqcal_tone_i) / 1024;
+					iqcal_tone_q * iqcal_tone_i) / 1024;
 		rot_image_i_b = (iqcal_image_i * iqcal_tone_i -
-						 iqcal_image_q * iqcal_tone_q) / 1024;
+					iqcal_image_q * iqcal_tone_q) / 1024;
 		rot_image_q_b = (iqcal_image_i * iqcal_tone_q +
-						 iqcal_image_q * iqcal_tone_i) / 1024;
+					iqcal_image_q * iqcal_tone_i) / 1024;
 
 		PHY_DEBUG(("[CAL]    ** rot_tone_i_b  = %d\n", rot_tone_i_b));
 		PHY_DEBUG(("[CAL]    ** rot_tone_q_b  = %d\n", rot_tone_q_b));
-- 
cgit 


From 36b30c53ec1814144a0c0c2eabb47b39c33fe7fa Mon Sep 17 00:00:00 2001
From: Iker Pedrosa <ikerpedrosam@gmail.com>
Date: Mon, 16 Sep 2013 15:43:25 +0200
Subject: Staging: winbond: phy_calibration: second of the patches that fixes
 lines over 80 characters

Second of the patches that fixes the lines over 80 characters in phy_calibration.c

Signed-off-by: Iker Pedrosa <ikerpedrosam@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/winbond/phy_calibration.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/winbond/phy_calibration.c b/drivers/staging/winbond/phy_calibration.c
index 6635c85a0ef5..d970660f6523 100644
--- a/drivers/staging/winbond/phy_calibration.c
+++ b/drivers/staging/winbond/phy_calibration.c
@@ -1233,8 +1233,10 @@ u8 _rx_iq_calibration_loop_winbond(struct hw_data *phw_data, u16 factor, u32 fre
 		b_2 = (rot_image_q_b * 32768) / rot_tone_i_b -
 			phw_data->iq_rsdl_phase_tx_d2;
 
-		PHY_DEBUG(("[CAL]    ** iq_rsdl_gain_tx_d2 = %d\n", phw_data->iq_rsdl_gain_tx_d2));
-		PHY_DEBUG(("[CAL]    ** iq_rsdl_phase_tx_d2= %d\n", phw_data->iq_rsdl_phase_tx_d2));
+		PHY_DEBUG(("[CAL]    ** iq_rsdl_gain_tx_d2 = %d\n",
+			   phw_data->iq_rsdl_gain_tx_d2));
+		PHY_DEBUG(("[CAL]    ** iq_rsdl_phase_tx_d2= %d\n",
+			   phw_data->iq_rsdl_phase_tx_d2));
 		PHY_DEBUG(("[CAL]    ***** EPSILON/2 = %d\n", a_2));
 		PHY_DEBUG(("[CAL]    ***** THETA/2   = %d\n", b_2));
 
@@ -1280,7 +1282,8 @@ u8 _rx_iq_calibration_loop_winbond(struct hw_data *phw_data, u16 factor, u32 fre
 
 		/* e. */
 		pwr_tone = (iqcal_tone_i*iqcal_tone_i + iqcal_tone_q*iqcal_tone_q);
-		pwr_image = (iqcal_image_i*iqcal_image_i + iqcal_image_q*iqcal_image_q)*factor;
+		pwr_image = (iqcal_image_i*iqcal_image_i +
+			     iqcal_image_q*iqcal_image_q)*factor;
 
 		PHY_DEBUG(("[CAL]    ** pwr_tone  = %d\n", pwr_tone));
 		PHY_DEBUG(("[CAL]    ** pwr_image  = %d\n", pwr_image));
@@ -1577,7 +1580,8 @@ unsigned char adjust_TXVGA_for_iq_mag(struct hw_data *phw_data)
 
 		sqsum = iqcal_tone_i0*iqcal_tone_i0 + iqcal_tone_q0*iqcal_tone_q0;
 		iq_mag_0_tx = (s32) _sqrt(sqsum);
-		PHY_DEBUG(("[CAL]    ** auto_adjust_txvga_for_iq_mag_0_tx=%d\n", iq_mag_0_tx));
+		PHY_DEBUG(("[CAL]    ** auto_adjust_txvga_for_iq_mag_0_tx=%d\n",
+			   iq_mag_0_tx));
 
 		if (iq_mag_0_tx >= 700 && iq_mag_0_tx <= 1750)
 			break;
-- 
cgit 


From 43bb3192a6b50980c3a6e2591c62e70f43aafb6a Mon Sep 17 00:00:00 2001
From: Iker Pedrosa <ikerpedrosam@gmail.com>
Date: Mon, 16 Sep 2013 15:43:26 +0200
Subject: Staging: winbond: reg: erased trailing whitespace

Erased all the errors given by checkpatch stating trailing whitespace.

Signed-off-by: Iker Pedrosa <ikerpedrosam@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/winbond/reg.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/winbond/reg.c b/drivers/staging/winbond/reg.c
index 75b775252af1..5883d231271c 100644
--- a/drivers/staging/winbond/reg.c
+++ b/drivers/staging/winbond/reg.c
@@ -920,7 +920,7 @@ void Uxx_power_on_procedure(struct hw_data *pHwData)
 	Wb35Reg_WriteSync(pHwData, 0x03f8, 0x7ff);
 }
 
-static void Set_ChanIndep_RfData_al7230_24(struct hw_data *pHwData, u32 *pltmp, 
+static void Set_ChanIndep_RfData_al7230_24(struct hw_data *pHwData, u32 *pltmp,
 					char number)
 {
 	u8	i;
@@ -930,7 +930,7 @@ static void Set_ChanIndep_RfData_al7230_24(struct hw_data *pHwData, u32 *pltmp,
 	}
 }
 
-static void Set_ChanIndep_RfData_al7230_50(struct hw_data *pHwData, u32 *pltmp, 
+static void Set_ChanIndep_RfData_al7230_50(struct hw_data *pHwData, u32 *pltmp,
 					char number)
 {
 	u8	i;
@@ -1620,13 +1620,13 @@ void BBProcessor_initial(struct hw_data *pHwData)
 		reg->SQ3_filter[i] = 0x2f; /* half of Bit 0 ~ 6 */
 }
 
-static inline void set_tx_power_per_channel_max2829(struct hw_data *pHwData,  
+static inline void set_tx_power_per_channel_max2829(struct hw_data *pHwData,
 						struct chan_info Channel)
 {
 	RFSynthesizer_SetPowerIndex(pHwData, 100);
 }
 
-static void set_tx_power_per_channel_al2230(struct hw_data *pHwData,  
+static void set_tx_power_per_channel_al2230(struct hw_data *pHwData,
 					struct chan_info Channel)
 {
 	u8	index = 100;
@@ -1636,7 +1636,7 @@ static void set_tx_power_per_channel_al2230(struct hw_data *pHwData,
 	RFSynthesizer_SetPowerIndex(pHwData, index);
 }
 
-static void set_tx_power_per_channel_al7230(struct hw_data *pHwData,  
+static void set_tx_power_per_channel_al7230(struct hw_data *pHwData,
 					struct chan_info Channel)
 {
 	u8	i, index = 100;
@@ -1660,7 +1660,7 @@ static void set_tx_power_per_channel_al7230(struct hw_data *pHwData,
 	RFSynthesizer_SetPowerIndex(pHwData, index);
 }
 
-static void set_tx_power_per_channel_wb242(struct hw_data *pHwData,  
+static void set_tx_power_per_channel_wb242(struct hw_data *pHwData,
 					struct chan_info Channel)
 {
 	u8	index = 100;
-- 
cgit 


From 5fc1398725dbc6f6c7200901c3a52f840d9090b8 Mon Sep 17 00:00:00 2001
From: Iker Pedrosa <ikerpedrosam@gmail.com>
Date: Mon, 16 Sep 2013 15:43:27 +0200
Subject: Staging: winbond: reg: white space deleted

White space deleted before semicolons.

Signed-off-by: Iker Pedrosa <ikerpedrosam@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/winbond/reg.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/winbond/reg.c b/drivers/staging/winbond/reg.c
index 5883d231271c..80b4b343a94e 100644
--- a/drivers/staging/winbond/reg.c
+++ b/drivers/staging/winbond/reg.c
@@ -1088,7 +1088,7 @@ void RFSynthesizer_initial(struct hw_data *pHwData)
 		msleep(5);
 
 		ltmp = (1 << 31) | (0 << 30) | (20 << 24) | BitReverse((0x0F << 20) | 0xF01A0, 20);
-		Wb35Reg_WriteSync(pHwData, 0x0864, ltmp) ;
+		Wb35Reg_WriteSync(pHwData, 0x0864, ltmp);
 
 		Wb35Reg_WriteSync(pHwData, 0x105c, pHwData->reg.BB5C);
 		pHwData->reg.BB50 &= ~0x13; /* (MASK_IQCAL_MODE|MASK_CALIB_START); */
@@ -2096,7 +2096,7 @@ void Mxx_initial(struct hw_data *pHwData)
 	pltmp[5] = reg->M38_MacControl;
 
 	/* M3C */
-	tmp = (DEFAULT_PIFST << 26) | (DEFAULT_EIFST << 16) | (DEFAULT_DIFST << 8) | (DEFAULT_SIFST << 4) | DEFAULT_OSIFST ;
+	tmp = (DEFAULT_PIFST << 26) | (DEFAULT_EIFST << 16) | (DEFAULT_DIFST << 8) | (DEFAULT_SIFST << 4) | DEFAULT_OSIFST;
 	reg->M3C_MacControl = tmp;
 	pltmp[6] = tmp;
 
-- 
cgit 


From fddd143f8ac91e984122b0885dfc3bb86fbad39e Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 15:41:35 +0530
Subject: staging: rtl8187se: Remove redundant pci_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/r8180_core.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/staging/rtl8187se/r8180_core.c b/drivers/staging/rtl8187se/r8180_core.c
index 35412d2922e2..48ce9a66907c 100644
--- a/drivers/staging/rtl8187se/r8180_core.c
+++ b/drivers/staging/rtl8187se/r8180_core.c
@@ -3268,7 +3268,6 @@ fail_free:
 	pci_disable_device(pdev);
 
 	DMESG("wlan driver load failed\n");
-	pci_set_drvdata(pdev, NULL);
 	return ret;
 }
 
-- 
cgit 


From 27e811075b694ea28d8f167b6763785002a4ec40 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 15:41:38 +0530
Subject: staging: vt6655: Remove redundant pci_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6655/device_main.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
index 7f36a7103c3e..e93fdc88d844 100644
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -1153,10 +1153,6 @@ static void device_free_info(PSDevice pDevice) {
 		pci_release_regions(pDevice->pcid);
 	if (dev)
 		free_netdev(dev);
-
-	if (pDevice->pcid) {
-		pci_set_drvdata(pDevice->pcid, NULL);
-	}
 }
 
 static bool device_init_rings(PSDevice pDevice) {
-- 
cgit 


From 477c81f02519b2e4e51467bbf9f32b19ab463a3b Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 15:41:39 +0530
Subject: staging: xgifb: Remove redundant pci_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/xgifb/XGI_main_26.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/staging/xgifb/XGI_main_26.c b/drivers/staging/xgifb/XGI_main_26.c
index 3b3e17d3f6f5..b3ff603e6225 100644
--- a/drivers/staging/xgifb/XGI_main_26.c
+++ b/drivers/staging/xgifb/XGI_main_26.c
@@ -2070,7 +2070,6 @@ static void xgifb_remove(struct pci_dev *pdev)
 	release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
 	pci_disable_device(pdev);
 	framebuffer_release(fb_info);
-	pci_set_drvdata(pdev, NULL);
 }
 
 static struct pci_driver xgifb_driver = {
-- 
cgit 


From 02eb261da392d3ea64ccce6f118c7d151d4e30c5 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 15:41:37 +0530
Subject: staging: sm7xxfb: Remove redundant pci_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/sm7xxfb/sm7xxfb.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/staging/sm7xxfb/sm7xxfb.c b/drivers/staging/sm7xxfb/sm7xxfb.c
index 8add64b1cb09..5c857618d905 100644
--- a/drivers/staging/sm7xxfb/sm7xxfb.c
+++ b/drivers/staging/sm7xxfb/sm7xxfb.c
@@ -933,7 +933,6 @@ static void smtcfb_pci_remove(struct pci_dev *pdev)
 	struct smtcfb_info *sfb;
 
 	sfb = pci_get_drvdata(pdev);
-	pci_set_drvdata(pdev, NULL);
 	smtc_unmap_smem(sfb);
 	smtc_unmap_mmio(sfb);
 	unregister_framebuffer(&sfb->fb);
-- 
cgit 


From 28432995fc624b3becc2428a4cdcebbe2231f63f Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 15:41:36 +0530
Subject: staging: rtl8192e: Remove redundant pci_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192e/rtl8192e/rtl_core.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
index e06844355551..7d322f3980e1 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
@@ -2982,7 +2982,6 @@ err_rel_rtllib:
 	free_rtllib(dev);
 
 	DMESG("wlan driver load failed\n");
-	pci_set_drvdata(pdev, NULL);
 err_pci_disable:
 	pci_disable_device(pdev);
 	return err;
-- 
cgit 


From 11f9c3218beeebdd86157949ccdfff1c9f82ff75 Mon Sep 17 00:00:00 2001
From: Hanjun Guo <hanjun.guo@linaro.org>
Date: Sun, 22 Sep 2013 19:05:47 +0800
Subject: Staging / quickstart: remove reduplicate if(acpi_disabled) check

In acpi_bus_register_driver(), there is an if (acpi_disabled) check,
so the if(acpi_disabled) before it is reduplicate, remove it.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/quickstart/quickstart.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/staging/quickstart/quickstart.c b/drivers/staging/quickstart/quickstart.c
index 4247d60c9186..9f6ebdb23740 100644
--- a/drivers/staging/quickstart/quickstart.c
+++ b/drivers/staging/quickstart/quickstart.c
@@ -390,10 +390,6 @@ static int __init quickstart_init(void)
 {
 	int ret;
 
-	/* ACPI Check */
-	if (acpi_disabled)
-		return -ENODEV;
-
 	/* ACPI driver register */
 	ret = acpi_bus_register_driver(&quickstart_acpi_driver);
 	if (ret)
-- 
cgit 


From cdddc28a0803a958993efc72388596493dcf74b6 Mon Sep 17 00:00:00 2001
From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Sun, 22 Sep 2013 20:44:13 +0200
Subject: Staging: crystalhd: Fix assignment of 0/1 to bool variables

Convert 0 to false and 1 to true when assigning values to bool
variables. Inspired by commit 3db1cd5c05f35fb43eb134df6f321de4e63141f2.

The simplified semantic patch that find this problem is as
follows (http://coccinelle.lip6.fr/):

@@
bool b;
@@
(
-b = 0
+b = false
|
-b = 1
+b = true
)

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/crystalhd/crystalhd_hw.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/crystalhd/crystalhd_hw.c b/drivers/staging/crystalhd/crystalhd_hw.c
index 5845e899ee80..043bd49843ff 100644
--- a/drivers/staging/crystalhd/crystalhd_hw.c
+++ b/drivers/staging/crystalhd/crystalhd_hw.c
@@ -1517,7 +1517,7 @@ static void crystalhd_rx_isr(struct crystalhd_hw *hw, uint32_t intr_sts)
 	uint32_t i, list_avail = 0;
 	enum BC_STATUS comp_sts = BC_STS_NO_DATA;
 	uint32_t y_err_sts, uv_err_sts, y_dn_sz = 0, uv_dn_sz = 0;
-	bool ret = 0;
+	bool ret = false;
 
 	if (!hw) {
 		BCMLOG_ERR("Invalid Arguments\n");
@@ -1852,7 +1852,7 @@ bool crystalhd_hw_interrupt(struct crystalhd_adp *adp, struct crystalhd_hw *hw)
 {
 	uint32_t intr_sts = 0;
 	uint32_t deco_intr = 0;
-	bool rc = 0;
+	bool rc = false;
 
 	if (!adp || !hw->dev_started)
 		return rc;
@@ -1865,7 +1865,7 @@ bool crystalhd_hw_interrupt(struct crystalhd_adp *adp, struct crystalhd_hw *hw)
 
 	if (intr_sts) {
 		/* let system know we processed interrupt..*/
-		rc = 1;
+		rc = true;
 		hw->stats.dev_interrupts++;
 	}
 
@@ -1886,7 +1886,7 @@ bool crystalhd_hw_interrupt(struct crystalhd_adp *adp, struct crystalhd_hw *hw)
 		/* FIXME: jarod: No udelay? might this be
 		 the real reason mini pci-e cards were stalling out? */
 		bc_dec_reg_wr(adp, Stream2Host_Intr_Sts, 0);
-		rc = 1;
+		rc = true;
 	}
 
 	/* Rx interrupts */
-- 
cgit 


From a4ec93d8b4647358aaa1bde4e1fc055e5f4cf711 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 23 Sep 2013 21:55:45 +0800
Subject: staging: r8188eu: remove needless check before usb_free_urb()

usb_free_urb(NULL) is safe and this check is not required.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/os_dep/recv_linux.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8188eu/os_dep/recv_linux.c b/drivers/staging/rtl8188eu/os_dep/recv_linux.c
index c40ef1357117..3852ff43810d 100644
--- a/drivers/staging/rtl8188eu/os_dep/recv_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/recv_linux.c
@@ -77,8 +77,7 @@ int rtw_os_recvbuf_resource_alloc(struct adapter *padapter,
 int rtw_os_recvbuf_resource_free(struct adapter *padapter,
 				 struct recv_buf *precvbuf)
 {
-	if (precvbuf->purb)
-		usb_free_urb(precvbuf->purb);
+	usb_free_urb(precvbuf->purb);
 	return _SUCCESS;
 }
 
-- 
cgit 


From 84181086342615a8c6cb28901fd8d67939b3c903 Mon Sep 17 00:00:00 2001
From: Paul Zimmerman <Paul.Zimmerman@synopsys.com>
Date: Mon, 23 Sep 2013 14:23:33 -0700
Subject: staging: dwc2: validate urb->actual_length for OUT endpoints

In dwc2_assign_and_init_hc(), validate urb->actual_length for OUT
endpoints before using the value. This fix is from the Synopsys
vendor driver.

Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dwc2/hcd.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/staging/dwc2/hcd.c b/drivers/staging/dwc2/hcd.c
index da0d35cc33ce..b24540572e92 100644
--- a/drivers/staging/dwc2/hcd.c
+++ b/drivers/staging/dwc2/hcd.c
@@ -780,6 +780,10 @@ static void dwc2_assign_and_init_hc(struct dwc2_hsotg *hsotg,
 	chan->data_pid_start = qh->data_toggle;
 	chan->multi_count = 1;
 
+	if ((urb->actual_length < 0 || urb->actual_length > urb->length) &&
+	    !dwc2_hcd_is_pipe_in(&urb->pipe_info))
+		urb->actual_length = urb->length;
+
 	if (hsotg->core_params->dma_enable > 0) {
 		chan->xfer_dma = urb->dma + urb->actual_length;
 
-- 
cgit 


From 20f2eb9c4cf8d770dae0c6e85991809c2f93663a Mon Sep 17 00:00:00 2001
From: Dom Cobley <popcornmix@gmail.com>
Date: Mon, 23 Sep 2013 14:23:34 -0700
Subject: staging: dwc2: add microframe scheduler from downstream Pi kernel

The transfer scheduler in the dwc2 driver is pretty basic, not to
mention buggy. It works fairly well with just a couple of devices
plugged in, but if you add, say, multiple devices with periodic
endpoints, the scheduler breaks down and can't even enumerate all
the devices.

To improve this, import the "microframe scheduler" patch from the
driver in the downstream Raspberry Pi kernel, which is based on
the Synopsys vendor driver. The original patch came from Denx
(http://git.denx.de/?p=linux-denx.git) and was commited to the
raspberrypi.org git tree by "popcornmix" (Dom Cobley).

I have added a driver parameter for this, enabled by default, in
case anyone has problems with it and needs to disable it. I don't
think we should add a DT binding for that, though, since I plan
to remove the option once any bugs are fixed.

[raspberrypi.org patch from Dom Cobley]
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
[adapted to dwc2 driver by Paul Zimmerman]
Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dwc2/core.c      |  21 +++++
 drivers/staging/dwc2/core.h      |   7 ++
 drivers/staging/dwc2/hcd.c       |  50 +++++++---
 drivers/staging/dwc2/hcd.h       |   3 +
 drivers/staging/dwc2/hcd_ddma.c  |  13 ++-
 drivers/staging/dwc2/hcd_intr.c  |  29 +++---
 drivers/staging/dwc2/hcd_queue.c | 199 ++++++++++++++++++++++++++++++++++++---
 drivers/staging/dwc2/pci.c       |   1 +
 8 files changed, 281 insertions(+), 42 deletions(-)

diff --git a/drivers/staging/dwc2/core.c b/drivers/staging/dwc2/core.c
index 8dbd174c9129..9140f5e37e80 100644
--- a/drivers/staging/dwc2/core.c
+++ b/drivers/staging/dwc2/core.c
@@ -2736,6 +2736,26 @@ int dwc2_get_hwparams(struct dwc2_hsotg *hsotg)
 	return 0;
 }
 
+int dwc2_set_param_uframe_sched(struct dwc2_hsotg *hsotg, int val)
+{
+	int retval = 0;
+
+	if (DWC2_PARAM_TEST(val, 0, 1)) {
+		if (val >= 0) {
+			dev_err(hsotg->dev,
+				"'%d' invalid for parameter uframe_sched\n",
+				val);
+			dev_err(hsotg->dev, "uframe_sched must be 0 or 1\n");
+		}
+		val = 1;
+		dev_dbg(hsotg->dev, "Setting uframe_sched to %d\n", val);
+		retval = -EINVAL;
+	}
+
+	hsotg->core_params->uframe_sched = val;
+	return retval;
+}
+
 /*
  * This function is called during module intialization to pass module parameters
  * for the DWC_otg core. It returns non-0 if any parameters are invalid.
@@ -2782,6 +2802,7 @@ int dwc2_set_parameters(struct dwc2_hsotg *hsotg,
 	retval |= dwc2_set_param_reload_ctl(hsotg, params->reload_ctl);
 	retval |= dwc2_set_param_ahbcfg(hsotg, params->ahbcfg);
 	retval |= dwc2_set_param_otg_ver(hsotg, params->otg_ver);
+	retval |= dwc2_set_param_uframe_sched(hsotg, params->uframe_sched);
 
 	return retval;
 }
diff --git a/drivers/staging/dwc2/core.h b/drivers/staging/dwc2/core.h
index 9102f66d0111..f7ba34b7071c 100644
--- a/drivers/staging/dwc2/core.h
+++ b/drivers/staging/dwc2/core.h
@@ -188,6 +188,7 @@ enum dwc2_lx_state {
  *                      bits defined by GAHBCFG_CTRL_MASK are controlled
  *                      by the driver and are ignored in this
  *                      configuration value.
+ * @uframe_sched:       True to enable the microframe scheduler
  *
  * The following parameters may be specified when starting the module. These
  * parameters define how the DWC_otg controller should be configured. A
@@ -224,6 +225,7 @@ struct dwc2_core_params {
 	int ts_dline;
 	int reload_ctl;
 	int ahbcfg;
+	int uframe_sched;
 };
 
 /**
@@ -370,6 +372,7 @@ struct dwc2_hw_params {
  *                      This value is in microseconds per (micro)frame. The
  *                      assumption is that all periodic transfers may occur in
  *                      the same (micro)frame.
+ * @frame_usecs:        Internal variable used by the microframe scheduler
  * @frame_number:       Frame number read from the core at SOF. The value ranges
  *                      from 0 to HFNUM_MAX_FRNUM.
  * @periodic_qh_count:  Count of periodic QHs, if using several eps. Used for
@@ -382,6 +385,8 @@ struct dwc2_hw_params {
  *                      host channel is available for non-periodic transactions.
  * @non_periodic_channels: Number of host channels assigned to non-periodic
  *                      transfers
+ * @available_host_channels Number of host channels available for the microframe
+ *                      scheduler to use
  * @hc_ptr_array:       Array of pointers to the host channel descriptors.
  *                      Allows accessing a host channel descriptor given the
  *                      host channel number. This is useful in interrupt
@@ -436,6 +441,7 @@ struct dwc2_hsotg {
 	struct list_head periodic_sched_assigned;
 	struct list_head periodic_sched_queued;
 	u16 periodic_usecs;
+	u16 frame_usecs[8];
 	u16 frame_number;
 	u16 periodic_qh_count;
 
@@ -451,6 +457,7 @@ struct dwc2_hsotg {
 	struct list_head free_hc_list;
 	int periodic_channels;
 	int non_periodic_channels;
+	int available_host_channels;
 	struct dwc2_host_chan *hc_ptr_array[MAX_EPS_CHANNELS];
 	u8 *status_buf;
 	dma_addr_t status_buf_dma;
diff --git a/drivers/staging/dwc2/hcd.c b/drivers/staging/dwc2/hcd.c
index b24540572e92..83629d84155d 100644
--- a/drivers/staging/dwc2/hcd.c
+++ b/drivers/staging/dwc2/hcd.c
@@ -537,10 +537,15 @@ static void dwc2_hcd_reinit(struct dwc2_hsotg *hsotg)
 	int i;
 
 	hsotg->flags.d32 = 0;
-
 	hsotg->non_periodic_qh_ptr = &hsotg->non_periodic_sched_active;
-	hsotg->non_periodic_channels = 0;
-	hsotg->periodic_channels = 0;
+
+	if (hsotg->core_params->uframe_sched > 0) {
+		hsotg->available_host_channels =
+			hsotg->core_params->host_channels;
+	} else {
+		hsotg->non_periodic_channels = 0;
+		hsotg->periodic_channels = 0;
+	}
 
 	/*
 	 * Put all channels in the free channel list and clean up channel
@@ -716,8 +721,7 @@ static int dwc2_hc_setup_align_buf(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh,
  * @qh:    Transactions from the first QTD for this QH are selected and assigned
  *         to a free host channel
  */
-static void dwc2_assign_and_init_hc(struct dwc2_hsotg *hsotg,
-				    struct dwc2_qh *qh)
+static int dwc2_assign_and_init_hc(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
 {
 	struct dwc2_host_chan *chan;
 	struct dwc2_hcd_urb *urb;
@@ -729,18 +733,18 @@ static void dwc2_assign_and_init_hc(struct dwc2_hsotg *hsotg,
 
 	if (list_empty(&qh->qtd_list)) {
 		dev_dbg(hsotg->dev, "No QTDs in QH list\n");
-		return;
+		return -ENOMEM;
 	}
 
 	if (list_empty(&hsotg->free_hc_list)) {
 		dev_dbg(hsotg->dev, "No free channel to assign\n");
-		return;
+		return -ENOMEM;
 	}
 
 	chan = list_first_entry(&hsotg->free_hc_list, struct dwc2_host_chan,
 				hc_list_entry);
 
-	/* Remove the host channel from the free list */
+	/* Remove host channel from free list */
 	list_del_init(&chan->hc_list_entry);
 
 	qtd = list_first_entry(&qh->qtd_list, struct dwc2_qtd, qtd_list_entry);
@@ -821,7 +825,7 @@ static void dwc2_assign_and_init_hc(struct dwc2_hsotg *hsotg,
 				      &hsotg->free_hc_list);
 			qtd->in_process = 0;
 			qh->channel = NULL;
-			return;
+			return -ENOMEM;
 		}
 	} else {
 		chan->align_buf = 0;
@@ -840,6 +844,8 @@ static void dwc2_assign_and_init_hc(struct dwc2_hsotg *hsotg,
 
 	dwc2_hc_init(hsotg, chan);
 	chan->qh = qh;
+
+	return 0;
 }
 
 /**
@@ -868,8 +874,14 @@ enum dwc2_transaction_type dwc2_hcd_select_transactions(
 	while (qh_ptr != &hsotg->periodic_sched_ready) {
 		if (list_empty(&hsotg->free_hc_list))
 			break;
+		if (hsotg->core_params->uframe_sched > 0) {
+			if (hsotg->available_host_channels <= 1)
+				break;
+			hsotg->available_host_channels--;
+		}
 		qh = list_entry(qh_ptr, struct dwc2_qh, qh_list_entry);
-		dwc2_assign_and_init_hc(hsotg, qh);
+		if (dwc2_assign_and_init_hc(hsotg, qh))
+			break;
 
 		/*
 		 * Move the QH from the periodic ready schedule to the
@@ -888,13 +900,21 @@ enum dwc2_transaction_type dwc2_hcd_select_transactions(
 	num_channels = hsotg->core_params->host_channels;
 	qh_ptr = hsotg->non_periodic_sched_inactive.next;
 	while (qh_ptr != &hsotg->non_periodic_sched_inactive) {
-		if (hsotg->non_periodic_channels >= num_channels -
+		if (hsotg->core_params->uframe_sched <= 0 &&
+		    hsotg->non_periodic_channels >= num_channels -
 						hsotg->periodic_channels)
 			break;
 		if (list_empty(&hsotg->free_hc_list))
 			break;
 		qh = list_entry(qh_ptr, struct dwc2_qh, qh_list_entry);
-		dwc2_assign_and_init_hc(hsotg, qh);
+		if (hsotg->core_params->uframe_sched > 0) {
+			if (hsotg->available_host_channels < 1)
+				break;
+			hsotg->available_host_channels--;
+		}
+
+		if (dwc2_assign_and_init_hc(hsotg, qh))
+			break;
 
 		/*
 		 * Move the QH from the non-periodic inactive schedule to the
@@ -909,7 +929,8 @@ enum dwc2_transaction_type dwc2_hcd_select_transactions(
 		else
 			ret_val = DWC2_TRANSACTION_ALL;
 
-		hsotg->non_periodic_channels++;
+		if (hsotg->core_params->uframe_sched <= 0)
+			hsotg->non_periodic_channels++;
 	}
 
 	return ret_val;
@@ -2852,6 +2873,9 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg, int irq,
 		hsotg->hc_ptr_array[i] = channel;
 	}
 
+	if (hsotg->core_params->uframe_sched > 0)
+		dwc2_hcd_init_usecs(hsotg);
+
 	/* Initialize hsotg start work */
 	INIT_DELAYED_WORK(&hsotg->start_work, dwc2_hcd_start_func);
 
diff --git a/drivers/staging/dwc2/hcd.h b/drivers/staging/dwc2/hcd.h
index cc0a11708319..89a5484f5b74 100644
--- a/drivers/staging/dwc2/hcd.h
+++ b/drivers/staging/dwc2/hcd.h
@@ -238,6 +238,7 @@ enum dwc2_transaction_type {
  * @interval:           Interval between transfers in (micro)frames
  * @sched_frame:        (Micro)frame to initialize a periodic transfer.
  *                      The transfer executes in the following (micro)frame.
+ * @frame_usecs:        Internal variable used by the microframe scheduler
  * @start_split_frame:  (Micro)frame at which last start split was initialized
  * @ntd:                Actual number of transfer descriptors in a list
  * @dw_align_buf:       Used instead of original buffer if its physical address
@@ -271,6 +272,7 @@ struct dwc2_qh {
 	u16 usecs;
 	u16 interval;
 	u16 sched_frame;
+	u16 frame_usecs[8];
 	u16 start_split_frame;
 	u16 ntd;
 	u8 *dw_align_buf;
@@ -463,6 +465,7 @@ extern void dwc2_hcd_queue_transactions(struct dwc2_hsotg *hsotg,
 
 /* Schedule Queue Functions */
 /* Implemented in hcd_queue.c */
+extern void dwc2_hcd_init_usecs(struct dwc2_hsotg *hsotg);
 extern void dwc2_hcd_qh_free(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh);
 extern int dwc2_hcd_qh_add(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh);
 extern void dwc2_hcd_qh_unlink(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh);
diff --git a/drivers/staging/dwc2/hcd_ddma.c b/drivers/staging/dwc2/hcd_ddma.c
index 69070f4442a8..c7d434519776 100644
--- a/drivers/staging/dwc2/hcd_ddma.c
+++ b/drivers/staging/dwc2/hcd_ddma.c
@@ -271,10 +271,14 @@ static void dwc2_release_channel_ddma(struct dwc2_hsotg *hsotg,
 {
 	struct dwc2_host_chan *chan = qh->channel;
 
-	if (dwc2_qh_is_non_per(qh))
-		hsotg->non_periodic_channels--;
-	else
+	if (dwc2_qh_is_non_per(qh)) {
+		if (hsotg->core_params->uframe_sched > 0)
+			hsotg->available_host_channels++;
+		else
+			hsotg->non_periodic_channels--;
+	} else {
 		dwc2_update_frame_list(hsotg, qh, 0);
+	}
 
 	/*
 	 * The condition is added to prevent double cleanup try in case of
@@ -370,7 +374,8 @@ void dwc2_hcd_qh_free_ddma(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
 
 	if ((qh->ep_type == USB_ENDPOINT_XFER_ISOC ||
 	     qh->ep_type == USB_ENDPOINT_XFER_INT) &&
-	    !hsotg->periodic_channels && hsotg->frame_list) {
+	    (hsotg->core_params->uframe_sched > 0 ||
+	     !hsotg->periodic_channels) && hsotg->frame_list) {
 		dwc2_per_sched_disable(hsotg);
 		dwc2_frame_list_free(hsotg);
 	}
diff --git a/drivers/staging/dwc2/hcd_intr.c b/drivers/staging/dwc2/hcd_intr.c
index e143f69939f5..cad433a75aba 100644
--- a/drivers/staging/dwc2/hcd_intr.c
+++ b/drivers/staging/dwc2/hcd_intr.c
@@ -748,18 +748,23 @@ cleanup:
 	dwc2_hc_cleanup(hsotg, chan);
 	list_add_tail(&chan->hc_list_entry, &hsotg->free_hc_list);
 
-	switch (chan->ep_type) {
-	case USB_ENDPOINT_XFER_CONTROL:
-	case USB_ENDPOINT_XFER_BULK:
-		hsotg->non_periodic_channels--;
-		break;
-	default:
-		/*
-		 * Don't release reservations for periodic channels here.
-		 * That's done when a periodic transfer is descheduled (i.e.
-		 * when the QH is removed from the periodic schedule).
-		 */
-		break;
+	if (hsotg->core_params->uframe_sched > 0) {
+		hsotg->available_host_channels++;
+	} else {
+		switch (chan->ep_type) {
+		case USB_ENDPOINT_XFER_CONTROL:
+		case USB_ENDPOINT_XFER_BULK:
+			hsotg->non_periodic_channels--;
+			break;
+		default:
+			/*
+			 * Don't release reservations for periodic channels
+			 * here. That's done when a periodic transfer is
+			 * descheduled (i.e. when the QH is removed from the
+			 * periodic schedule).
+			 */
+			break;
+		}
 	}
 
 	haintmsk = readl(hsotg->regs + HAINTMSK);
diff --git a/drivers/staging/dwc2/hcd_queue.c b/drivers/staging/dwc2/hcd_queue.c
index c09b2db2c89a..f200f1f6e1c6 100644
--- a/drivers/staging/dwc2/hcd_queue.c
+++ b/drivers/staging/dwc2/hcd_queue.c
@@ -323,6 +323,146 @@ static int dwc2_check_periodic_bandwidth(struct dwc2_hsotg *hsotg,
 	return status;
 }
 
+/**
+ * Microframe scheduler
+ * track the total use in hsotg->frame_usecs
+ * keep each qh use in qh->frame_usecs
+ * when surrendering the qh then donate the time back
+ */
+static const unsigned short max_uframe_usecs[] = {
+	100, 100, 100, 100, 100, 100, 30, 0
+};
+
+void dwc2_hcd_init_usecs(struct dwc2_hsotg *hsotg)
+{
+	int i;
+
+	for (i = 0; i < 8; i++)
+		hsotg->frame_usecs[i] = max_uframe_usecs[i];
+}
+
+static int dwc2_find_single_uframe(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
+{
+	unsigned short utime = qh->usecs;
+	int done = 0;
+	int i = 0;
+	int ret = -1;
+
+	while (!done) {
+		/* At the start hsotg->frame_usecs[i] = max_uframe_usecs[i] */
+		if (utime <= hsotg->frame_usecs[i]) {
+			hsotg->frame_usecs[i] -= utime;
+			qh->frame_usecs[i] += utime;
+			ret = i;
+			done = 1;
+		} else {
+			i++;
+			if (i == 8)
+				done = 1;
+		}
+	}
+
+	return ret;
+}
+
+/*
+ * use this for FS apps that can span multiple uframes
+ */
+static int dwc2_find_multi_uframe(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
+{
+	unsigned short utime = qh->usecs;
+	unsigned short xtime;
+	int t_left = utime;
+	int done = 0;
+	int i = 0;
+	int j;
+	int ret = -1;
+
+	while (!done) {
+		if (hsotg->frame_usecs[i] <= 0) {
+			i++;
+			if (i == 8) {
+				ret = -1;
+				done = 1;
+			}
+			continue;
+		}
+
+		/*
+		 * we need n consecutive slots so use j as a start slot
+		 * j plus j+1 must be enough time (for now)
+		 */
+		xtime = hsotg->frame_usecs[i];
+		for (j = i + 1; j < 8; j++) {
+			/*
+			 * if we add this frame remaining time to xtime we may
+			 * be OK, if not we need to test j for a complete frame
+			 */
+			if (xtime + hsotg->frame_usecs[j] < utime) {
+				if (hsotg->frame_usecs[j] <
+							max_uframe_usecs[j]) {
+					ret = -1;
+					break;
+				}
+			}
+			if (xtime >= utime) {
+				ret = i;
+				break;
+			}
+			/* add the frame time to x time */
+			xtime += hsotg->frame_usecs[j];
+			/* we must have a fully available next frame or break */
+			if (xtime < utime &&
+			   hsotg->frame_usecs[j] == max_uframe_usecs[j]) {
+				ret = -1;
+				break;
+			}
+		}
+		if (ret >= 0) {
+			t_left = utime;
+			for (j = i; t_left > 0 && j < 8; j++) {
+				t_left -= hsotg->frame_usecs[j];
+				if (t_left <= 0) {
+					qh->frame_usecs[j] +=
+						hsotg->frame_usecs[j] + t_left;
+					hsotg->frame_usecs[j] = -t_left;
+					ret = i;
+					done = 1;
+				} else {
+					qh->frame_usecs[j] +=
+						hsotg->frame_usecs[j];
+					hsotg->frame_usecs[j] = 0;
+				}
+			}
+		} else {
+			i++;
+			if (i == 8) {
+				ret = -1;
+				done = 1;
+			}
+		}
+	}
+
+	return ret;
+}
+
+static int dwc2_find_uframe(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
+{
+	int ret;
+
+	if (qh->dev_speed == USB_SPEED_HIGH) {
+		/* if this is a hs transaction we need a full frame */
+		ret = dwc2_find_single_uframe(hsotg, qh);
+	} else {
+		/*
+		 * if this is a fs transaction we may need a sequence
+		 * of frames
+		 */
+		ret = dwc2_find_multi_uframe(hsotg, qh);
+	}
+	return ret;
+}
+
 /**
  * dwc2_check_max_xfer_size() - Checks that the max transfer size allowed in a
  * host channel is large enough to handle the maximum data transfer in a single
@@ -367,15 +507,35 @@ static int dwc2_schedule_periodic(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
 {
 	int status;
 
-	status = dwc2_periodic_channel_available(hsotg);
-	if (status) {
-		dev_dbg(hsotg->dev,
-			"%s: No host channel available for periodic transfer\n",
-			__func__);
-		return status;
+	if (hsotg->core_params->uframe_sched > 0) {
+		int frame = -1;
+
+		status = dwc2_find_uframe(hsotg, qh);
+		if (status == 0)
+			frame = 7;
+		else if (status > 0)
+			frame = status - 1;
+
+		/* Set the new frame up */
+		if (frame > -1) {
+			qh->sched_frame &= ~0x7;
+			qh->sched_frame |= (frame & 7);
+		}
+
+		if (status != -1)
+			status = 0;
+	} else {
+		status = dwc2_periodic_channel_available(hsotg);
+		if (status) {
+			dev_info(hsotg->dev,
+				 "%s: No host channel available for periodic transfer\n",
+				 __func__);
+			return status;
+		}
+
+		status = dwc2_check_periodic_bandwidth(hsotg, qh);
 	}
 
-	status = dwc2_check_periodic_bandwidth(hsotg, qh);
 	if (status) {
 		dev_dbg(hsotg->dev,
 			"%s: Insufficient periodic bandwidth for periodic transfer\n",
@@ -399,8 +559,9 @@ static int dwc2_schedule_periodic(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
 		list_add_tail(&qh->qh_list_entry,
 			      &hsotg->periodic_sched_inactive);
 
-	/* Reserve periodic channel */
-	hsotg->periodic_channels++;
+	if (hsotg->core_params->uframe_sched <= 0)
+		/* Reserve periodic channel */
+		hsotg->periodic_channels++;
 
 	/* Update claimed usecs per (micro)frame */
 	hsotg->periodic_usecs += qh->usecs;
@@ -418,13 +579,22 @@ static int dwc2_schedule_periodic(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
 static void dwc2_deschedule_periodic(struct dwc2_hsotg *hsotg,
 				     struct dwc2_qh *qh)
 {
-	list_del_init(&qh->qh_list_entry);
+	int i;
 
-	/* Release periodic channel reservation */
-	hsotg->periodic_channels--;
+	list_del_init(&qh->qh_list_entry);
 
 	/* Update claimed usecs per (micro)frame */
 	hsotg->periodic_usecs -= qh->usecs;
+
+	if (hsotg->core_params->uframe_sched > 0) {
+		for (i = 0; i < 8; i++) {
+			hsotg->frame_usecs[i] += qh->frame_usecs[i];
+			qh->frame_usecs[i] = 0;
+		}
+	} else {
+		/* Release periodic channel reservation */
+		hsotg->periodic_channels--;
+	}
 }
 
 /**
@@ -581,7 +751,10 @@ void dwc2_hcd_qh_deactivate(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh,
 			 * Remove from periodic_sched_queued and move to
 			 * appropriate queue
 			 */
-			if (qh->sched_frame == frame_number)
+			if ((hsotg->core_params->uframe_sched > 0 &&
+			     dwc2_frame_num_le(qh->sched_frame, frame_number))
+			 || (hsotg->core_params->uframe_sched <= 0 &&
+			     qh->sched_frame == frame_number))
 				list_move(&qh->qh_list_entry,
 					  &hsotg->periodic_sched_ready);
 			else
diff --git a/drivers/staging/dwc2/pci.c b/drivers/staging/dwc2/pci.c
index 9020260d5df8..3d14c8870fca 100644
--- a/drivers/staging/dwc2/pci.c
+++ b/drivers/staging/dwc2/pci.c
@@ -84,6 +84,7 @@ static const struct dwc2_core_params dwc2_module_params = {
 	.ts_dline			= -1,
 	.reload_ctl			= -1,
 	.ahbcfg				= -1,
+	.uframe_sched			= -1,
 };
 
 /**
-- 
cgit 


From 6ce1112729de6ee71ce8c01e231a57e33f364bc8 Mon Sep 17 00:00:00 2001
From: Paul Zimmerman <Paul.Zimmerman@synopsys.com>
Date: Mon, 23 Sep 2013 17:15:40 -0700
Subject: staging: dwc2: add TODO file

Add TODO file for DWC2 driver

Signed-off-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dwc2/TODO | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 drivers/staging/dwc2/TODO

diff --git a/drivers/staging/dwc2/TODO b/drivers/staging/dwc2/TODO
new file mode 100644
index 000000000000..282470d55315
--- /dev/null
+++ b/drivers/staging/dwc2/TODO
@@ -0,0 +1,33 @@
+TODO:
+	- Dan Carpenter would like to see some cleanups to the microframe
+	  scheduler code:
+	  http://www.mail-archive.com/linux-usb@vger.kernel.org/msg26650.html
+
+	- Should merge the NAK holdoff patch from Raspberry Pi
+	  (http://marc.info/?l=linux-usb&m=137625067103833). But as it stands
+	  that patch is incomplete, it needs more investigation to see if it
+	  can be made to work for non-Raspberry Pi platforms that lack the
+	  special FIQ interrupt that the Pi has. Without this patch, the driver
+	  has a high interrupt rate (8K/sec).
+
+	- The Raspberry Pi platform needs to have support for its FIQ interrupt
+	  added, to get the same level of functionality as the downstream
+	  driver. The raspberrypi.org developers have indicated they are
+	  willing to help with that.
+
+	- Some of the default driver parameters (see 'struct dwc2_core_params'
+	  in core.h) won't work for many platforms. So DT attributes will need
+	  to be added for some of these. But that can be done as-needed as new
+	  platforms are added.
+
+	- Eventually the driver should be merged with the s3c-hsotg peripheral
+	  mode driver, so that both modes of operation can be supported with a
+	  single driver. But I think that can wait till after the driver has
+	  been moved to mainline.
+
+	- After that, OTG support can be added. I'm not sure how much demand
+	  there is for that, though, so I have that as a low priority.
+
+Please send any patches for this driver to Paul Zimmerman <paulz@synopsys.com>
+and Greg Kroah-Hartman <gregkh@linuxfoundation.org>. And please CC linux-usb
+<linux-usb@vger.kernel.org> too.
-- 
cgit 


From 0464a3d223e40f0cebe2e009f9951e48015d1dae Mon Sep 17 00:00:00 2001
From: Luis Ortega Perez de Villar <luiorpe1@upv.es>
Date: Wed, 25 Sep 2013 13:10:50 +0200
Subject: Staging: dwc2: core: coding style - indentation should use tabs

Fixed coding style issue where lines are indented with spaces
instead of tabs.

Signed-off-by: Luis Ortega Perez de Villar <luiorpe1@upv.es>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dwc2/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/dwc2/core.c b/drivers/staging/dwc2/core.c
index 9140f5e37e80..6d001b52f652 100644
--- a/drivers/staging/dwc2/core.c
+++ b/drivers/staging/dwc2/core.c
@@ -2205,7 +2205,7 @@ int dwc2_set_param_phy_type(struct dwc2_hsotg *hsotg, int val)
 {
 #ifndef NO_FS_PHY_HW_CHECKS
 	int valid = 0;
-        u32 hs_phy_type, fs_phy_type;
+	u32 hs_phy_type, fs_phy_type;
 #endif
 	int retval = 0;
 
@@ -2553,7 +2553,7 @@ int dwc2_set_param_ahbcfg(struct dwc2_hsotg *hsotg, int val)
 		hsotg->core_params->ahbcfg = val;
 	else
 		hsotg->core_params->ahbcfg = GAHBCFG_HBSTLEN_INCR4 <<
-                                             GAHBCFG_HBSTLEN_SHIFT;
+						GAHBCFG_HBSTLEN_SHIFT;
 	return 0;
 }
 
-- 
cgit 


From f7e9fbc017b7f8e23c35d2f0be0f4842236b5a2c Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Sat, 21 Sep 2013 23:42:23 +0300
Subject: staging: rtl8192u: remove unused code from cmpk_message_handle_tx()

The file r819xU_cmdpkt.c includes header r8192U.h which defines RTL8192U.
This patch removes from cmpk_message_handle_tx() the part of the code that
is never used because it resides outside the header guard #ifdef RTL8192U.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r819xU_cmdpkt.c | 74 +-------------------------------
 1 file changed, 1 insertion(+), 73 deletions(-)

diff --git a/drivers/staging/rtl8192u/r819xU_cmdpkt.c b/drivers/staging/rtl8192u/r819xU_cmdpkt.c
index 5bc361b16d4c..f7b9d20bec62 100644
--- a/drivers/staging/rtl8192u/r819xU_cmdpkt.c
+++ b/drivers/staging/rtl8192u/r819xU_cmdpkt.c
@@ -83,79 +83,7 @@ extern rt_status cmpk_message_handle_tx(struct net_device *dev,
 					u8 *codevirtualaddress,
 					u32 packettype, u32 buffer_len)
 {
-
-	bool	    rt_status = true;
-#ifdef RTL8192U
-	return rt_status;
-#else
-	struct r8192_priv   *priv = ieee80211_priv(dev);
-	u16		    frag_threshold;
-	u16		    frag_length, frag_offset = 0;
-
-	rt_firmware	    *pfirmware = priv->pFirmware;
-	struct sk_buff	    *skb;
-	unsigned char	    *seg_ptr;
-	cb_desc		    *tcb_desc;
-	u8                  bLastIniPkt;
-
-	firmware_init_param(dev);
-	/* Fragmentation might be required */
-	frag_threshold = pfirmware->cmdpacket_frag_thresold;
-	do {
-		if ((buffer_len - frag_offset) > frag_threshold) {
-			frag_length = frag_threshold;
-			bLastIniPkt = 0;
-
-		} else {
-			frag_length = buffer_len - frag_offset;
-			bLastIniPkt = 1;
-
-		}
-
-		/* Allocate skb buffer to contain firmware info and tx
-		   descriptor info add 4 to avoid packet appending overflow. */
-#ifdef RTL8192U
-		skb  = dev_alloc_skb(USB_HWDESC_HEADER_LEN + frag_length + 4);
-#else
-		skb  = dev_alloc_skb(frag_length + 4);
-#endif
-		memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
-		tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
-		tcb_desc->queue_index = TXCMD_QUEUE;
-		tcb_desc->bCmdOrInit = packettype;
-		tcb_desc->bLastIniPkt = bLastIniPkt;
-
-#ifdef RTL8192U
-		skb_reserve(skb, USB_HWDESC_HEADER_LEN);
-#endif
-
-		seg_ptr = skb_put(skb, buffer_len);
-		/*
-		 * Transform from little endian to big endian
-		 * and pending zero
-		 */
-		memcpy(seg_ptr, codevirtualaddress, buffer_len);
-		tcb_desc->txbuf_size = (u16)buffer_len;
-
-
-		if (!priv->ieee80211->check_nic_enough_desc(dev, tcb_desc->queue_index) ||
-		    (!skb_queue_empty(&priv->ieee80211->skb_waitQ[tcb_desc->queue_index])) ||
-		    (priv->ieee80211->queue_stop)) {
-			RT_TRACE(COMP_FIRMWARE, "======> tx full!\n");
-			skb_queue_tail(&priv->ieee80211->skb_waitQ[tcb_desc->queue_index], skb);
-		} else {
-			priv->ieee80211->softmac_hard_start_xmit(skb, dev);
-		}
-
-		codevirtualaddress += frag_length;
-		frag_offset += frag_length;
-
-	} while (frag_offset < buffer_len);
-
-	return rt_status;
-
-
-#endif
+	return true;
 }
 
 /*-----------------------------------------------------------------------------
-- 
cgit 


From f6150b40e9a4426aaa819ca0736f8db8af3c4a75 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Sat, 21 Sep 2013 23:42:24 +0300
Subject: staging: rtl8192u: remove cmpk_message_handle_tx()

The function cmpk_message_handle_tx() is called only in r8192U_dm.c in two
places. The first call resides outside an #ifdef RTL8192U guard, and since
RTL8192U is defined this call can be removed. At the other site this function
is called, there is no check on its return value. Since cmpk_message_handle_tx()
does not do anything else other than returning true, it can be safely removed.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r8192U_dm.c     |  8 --------
 drivers/staging/rtl8192u/r819xU_cmdpkt.c | 27 ---------------------------
 drivers/staging/rtl8192u/r819xU_cmdpkt.h |  2 --
 3 files changed, 37 deletions(-)

diff --git a/drivers/staging/rtl8192u/r8192U_dm.c b/drivers/staging/rtl8192u/r8192U_dm.c
index a6e4c37d9c78..527513114822 100644
--- a/drivers/staging/rtl8192u/r8192U_dm.c
+++ b/drivers/staging/rtl8192u/r8192U_dm.c
@@ -620,16 +620,11 @@ static void dm_TXPowerTrackingCallback_TSSI(struct net_device *dev)
 	tx_cmd.Op		= TXCMD_SET_TX_PWR_TRACKING;
 	tx_cmd.Length	= 4;
 	tx_cmd.Value		= Value;
-#ifdef RTL8192U
 	rtStatus = SendTxCommandPacket(dev, &tx_cmd, 12);
 	if (rtStatus == RT_STATUS_FAILURE)
 	{
 		RT_TRACE(COMP_POWER_TRACKING, "Set configuration with tx cmd queue fail!\n");
 	}
-#else
-	cmpk_message_handle_tx(dev, (u8 *)&tx_cmd,
-								DESC_PACKET_TYPE_INIT, sizeof(DCMD_TXCMD_T));
-#endif
 	mdelay(1);
 	//DbgPrint("hi, vivi, strange\n");
 	for(i = 0;i <= 30; i++)
@@ -3885,9 +3880,6 @@ static void dm_send_rssi_tofw(struct net_device *dev)
 	tx_cmd.Op		= TXCMD_SET_RX_RSSI;
 	tx_cmd.Length	= 4;
 	tx_cmd.Value		= priv->undecorated_smoothed_pwdb;
-
-	cmpk_message_handle_tx(dev, (u8 *)&tx_cmd,
-								DESC_PACKET_TYPE_INIT, sizeof(DCMD_TXCMD_T));
 }
 
 /*---------------------------Define function prototype------------------------*/
diff --git a/drivers/staging/rtl8192u/r819xU_cmdpkt.c b/drivers/staging/rtl8192u/r819xU_cmdpkt.c
index f7b9d20bec62..e8b479a5ea21 100644
--- a/drivers/staging/rtl8192u/r819xU_cmdpkt.c
+++ b/drivers/staging/rtl8192u/r819xU_cmdpkt.c
@@ -59,33 +59,6 @@ rt_status SendTxCommandPacket(struct net_device *dev, void *pData, u32 DataLen)
 	return rtStatus;
 }
 
-/*-----------------------------------------------------------------------------
- * Function:	cmpk_message_handle_tx()
- *
- * Overview:	Driver internal module can call the API to send message to
- *		firmware side. For example, you can send a debug command packet.
- *		Or you can send a request for FW to modify RLX4181 LBUS HW bank.
- *		Otherwise, you can change MAC/PHT/RF register by firmware at
- *		run time. We do not support message more than one segment now.
- *
- * Input:	NONE
- *
- * Output:	NONE
- *
- * Return:	NONE
- *
- * Revised History:
- *	When		Who		Remark
- *	05/06/2008	amy		porting from windows code.
- *
- *---------------------------------------------------------------------------*/
-extern rt_status cmpk_message_handle_tx(struct net_device *dev,
-					u8 *codevirtualaddress,
-					u32 packettype, u32 buffer_len)
-{
-	return true;
-}
-
 /*-----------------------------------------------------------------------------
  * Function:    cmpk_counttxstatistic()
  *
diff --git a/drivers/staging/rtl8192u/r819xU_cmdpkt.h b/drivers/staging/rtl8192u/r819xU_cmdpkt.h
index ebe403270a5b..c79878af7021 100644
--- a/drivers/staging/rtl8192u/r819xU_cmdpkt.h
+++ b/drivers/staging/rtl8192u/r819xU_cmdpkt.h
@@ -192,8 +192,6 @@ typedef enum _rt_status{
 	RT_STATUS_RESOURCE
 }rt_status,*prt_status;
 
-extern rt_status cmpk_message_handle_tx(struct net_device *dev, u8 *codevirtualaddress, u32 packettype, u32 buffer_len);
-
 extern  u32 cmpk_message_handle_rx(struct net_device *dev, struct ieee80211_rx_stats *pstats);
 extern rt_status SendTxCommandPacket( struct net_device *dev, void *pData, u32 DataLen);
 
-- 
cgit 


From ccb0ec8338be4bd76bda3ff119547e7d54604ec9 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Sat, 21 Sep 2013 23:42:25 +0300
Subject: staging: rtl8192u: remove unused code in fw_download_code()

This patch removes the code that resides outside #ifdef RTL8192U,
since RTL8192U is defined in r8192U.h and removes, also, the header
guard itself.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r819xU_firmware.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/staging/rtl8192u/r819xU_firmware.c b/drivers/staging/rtl8192u/r819xU_firmware.c
index bb924ac97e47..cde4365b6f7a 100644
--- a/drivers/staging/rtl8192u/r819xU_firmware.c
+++ b/drivers/staging/rtl8192u/r819xU_firmware.c
@@ -61,20 +61,14 @@ bool fw_download_code(struct net_device *dev, u8 *code_virtual_address, u32 buff
 		/* Allocate skb buffer to contain firmware info and tx descriptor info
 		 * add 4 to avoid packet appending overflow.
 		 * */
-		#ifdef RTL8192U
 		skb  = dev_alloc_skb(USB_HWDESC_HEADER_LEN + frag_length + 4);
-		#else
-		skb  = dev_alloc_skb(frag_length + 4);
-		#endif
 		memcpy((unsigned char *)(skb->cb),&dev,sizeof(dev));
 		tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
 		tcb_desc->queue_index = TXCMD_QUEUE;
 		tcb_desc->bCmdOrInit = DESC_PACKET_TYPE_INIT;
 		tcb_desc->bLastIniPkt = bLastIniPkt;
 
-		#ifdef RTL8192U
 		skb_reserve(skb, USB_HWDESC_HEADER_LEN);
-		#endif
 		seg_ptr = skb->data;
 		/*
 		 * Transform from little endian to big endian
-- 
cgit 


From f8518efa4e3f168223a8bf3afa39895e92a20f89 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Sat, 21 Sep 2013 23:42:26 +0300
Subject: staging: rtl8192u: check dev_alloc_skb() return value in
 fw_download_code()

This patch adds a check whether skb allocation, in fw_download_code(), was
successful.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r819xU_firmware.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/rtl8192u/r819xU_firmware.c b/drivers/staging/rtl8192u/r819xU_firmware.c
index cde4365b6f7a..106740eef335 100644
--- a/drivers/staging/rtl8192u/r819xU_firmware.c
+++ b/drivers/staging/rtl8192u/r819xU_firmware.c
@@ -62,6 +62,8 @@ bool fw_download_code(struct net_device *dev, u8 *code_virtual_address, u32 buff
 		 * add 4 to avoid packet appending overflow.
 		 * */
 		skb  = dev_alloc_skb(USB_HWDESC_HEADER_LEN + frag_length + 4);
+		if (!skb)
+			return false;
 		memcpy((unsigned char *)(skb->cb),&dev,sizeof(dev));
 		tcb_desc = (cb_desc *)(skb->cb + MAX_DEV_ADDR_SIZE);
 		tcb_desc->queue_index = TXCMD_QUEUE;
-- 
cgit 


From 95b672bbf7c2f81e73d953fd87909d69b9f2cd3d Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Sat, 21 Sep 2013 23:42:27 +0300
Subject: staging: rtl8192u: remove dm_check_rfctrl_gpio()

This patch removes dm_check_rfctrl_gpio() because it does nothing when
RTL8192U is defined.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r8192U_dm.c | 42 ------------------------------------
 1 file changed, 42 deletions(-)

diff --git a/drivers/staging/rtl8192u/r8192U_dm.c b/drivers/staging/rtl8192u/r8192U_dm.c
index 527513114822..338c6f1d84df 100644
--- a/drivers/staging/rtl8192u/r8192U_dm.c
+++ b/drivers/staging/rtl8192u/r8192U_dm.c
@@ -122,9 +122,6 @@ static	void dm_init_ctstoself(struct net_device *dev);
 // DM --> EDCA turbo mode control
 static	void	dm_check_edca_turbo(struct net_device *dev);
 
-// DM --> HW RF control
-static	void	dm_check_rfctrl_gpio(struct net_device *dev);
-
 #ifndef RTL8190P
 //static	void	dm_gpio_change_rf(struct net_device *dev);
 #endif
@@ -269,7 +266,6 @@ extern  void    hal_dm_watchdog(struct net_device *dev)
 	dm_ctrl_initgain_byrssi(dev);
 	dm_check_edca_turbo(dev);
 	dm_bandwidth_autoswitch(dev);
-	dm_check_rfctrl_gpio(dev);
 	dm_check_rx_path_selection(dev);
 	dm_check_fsync(dev);
 
@@ -2818,44 +2814,6 @@ static void dm_ctstoself(struct net_device *dev)
 	}
 }
 
-
-/*-----------------------------------------------------------------------------
- * Function:	dm_check_rfctrl_gpio()
- *
- * Overview:	Copy 8187B template for 9xseries.
- *
- * Input:		NONE
- *
- * Output:		NONE
- *
- * Return:		NONE
- *
- * Revised History:
- *	When		Who		Remark
- *	05/28/2008	amy		Create Version 0 porting from windows code.
- *
- *---------------------------------------------------------------------------*/
-static void dm_check_rfctrl_gpio(struct net_device *dev)
-{
-	//struct r8192_priv *priv = ieee80211_priv(dev);
-
-	// Work around for DTM test, we will not enable HW - radio on/off because r/w
-	// page 1 register before extra bus is enabled causing system failures when resuming
-	// from S4. 20080218, Emily
-
-	// Stop to execute workitem to prevent S3/S4 bug.
-#ifdef RTL8190P
-	return;
-#endif
-#ifdef RTL8192U
-	return;
-#endif
-#ifdef RTL8192E
-		queue_delayed_work(priv->priv_wq,&priv->gpio_change_rf_wq,0);
-#endif
-
-}	/* dm_CheckRfCtrlGPIO */
-
 /*-----------------------------------------------------------------------------
  * Function:	dm_check_pbc_gpio()
  *
-- 
cgit 


From 1e27ab87d1f3f18123bb18f0889901caf1dedac7 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Sat, 21 Sep 2013 23:42:28 +0300
Subject: staging: rtl8192u: remove #ifdef RTL8192U guard in r8192U_dm.c

This patch removes #ifdef RTL8192U header guards from r8192U_dm.c, since
RTL8192U is defined in the included r8192U.h header.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r8192U_dm.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/staging/rtl8192u/r8192U_dm.c b/drivers/staging/rtl8192u/r8192U_dm.c
index 338c6f1d84df..910bd4c73986 100644
--- a/drivers/staging/rtl8192u/r8192U_dm.c
+++ b/drivers/staging/rtl8192u/r8192U_dm.c
@@ -2832,7 +2832,6 @@ static void dm_ctstoself(struct net_device *dev)
  *---------------------------------------------------------------------------*/
 static	void	dm_check_pbc_gpio(struct net_device *dev)
 {
-#ifdef RTL8192U
 	struct r8192_priv *priv = ieee80211_priv(dev);
 	u8 tmp1byte;
 
@@ -2848,7 +2847,6 @@ static	void	dm_check_pbc_gpio(struct net_device *dev)
 		RT_TRACE(COMP_IO, "CheckPbcGPIO - PBC is pressed\n");
 		priv->bpbc_pressed = true;
 	}
-#endif
 
 }
 
@@ -3798,10 +3796,8 @@ static void dm_dynamic_txpower(struct net_device *dev)
 		SetTxPowerLevel8190(Adapter,pHalData->CurrentChannel);
 #endif
 
-#ifdef RTL8192U
 		rtl8192_phy_setTxPower(dev,priv->ieee80211->current_network.channel);
 		//pHalData->bStartTxCtrlByTPCNFR = FALSE;    //Clear th flag of Set TX Power from Sitesurvey
-#endif
 	}
 	priv->bLastDTPFlag_High = priv->bDynamicTxHighPower;
 	priv->bLastDTPFlag_Low = priv->bDynamicTxLowPower;
-- 
cgit 


From dd747fa582465275454d2a5b259db75916d42298 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Sat, 21 Sep 2013 23:42:29 +0300
Subject: staging: rtl8192u: remove unused dm_gpio_change_rf_callback()

This patch removes dm_gpio_change_rf_callback() because it is not called
anywhere and it resides inside an #ifdef RTL8192E guard while RTL8192E
is not defined.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r8192U_dm.c | 73 ------------------------------------
 1 file changed, 73 deletions(-)

diff --git a/drivers/staging/rtl8192u/r8192U_dm.c b/drivers/staging/rtl8192u/r8192U_dm.c
index 910bd4c73986..1a3808545cee 100644
--- a/drivers/staging/rtl8192u/r8192U_dm.c
+++ b/drivers/staging/rtl8192u/r8192U_dm.c
@@ -2850,79 +2850,6 @@ static	void	dm_check_pbc_gpio(struct net_device *dev)
 
 }
 
-#ifdef RTL8192E
-
-/*-----------------------------------------------------------------------------
- * Function:	dm_GPIOChangeRF
- * Overview:	PCI will not support workitem call back HW radio on-off control.
- *
- * Input:		NONE
- *
- * Output:		NONE
- *
- * Return:		NONE
- *
- * Revised History:
- *	When		Who		Remark
- *	02/21/2008	MHC		Create Version 0.
- *
- *---------------------------------------------------------------------------*/
-extern	void	dm_gpio_change_rf_callback(struct work_struct *work)
-{
-	struct delayed_work *dwork = container_of(work,struct delayed_work,work);
-       struct r8192_priv *priv = container_of(dwork,struct r8192_priv,gpio_change_rf_wq);
-       struct net_device *dev = priv->ieee80211->dev;
-	u8 tmp1byte;
-	RT_RF_POWER_STATE	eRfPowerStateToSet;
-	bool bActuallySet = false;
-
-	do{
-		bActuallySet=false;
-
-		if(!priv->up)
-		{
-			RT_TRACE((COMP_INIT | COMP_POWER | COMP_RF),"dm_gpio_change_rf_callback(): Callback function breaks out!!\n");
-		}
-		else
-		{
-			// 0x108 GPIO input register is read only
-			//set 0x108 B1= 1: RF-ON; 0: RF-OFF.
-			read_nic_byte(dev, GPI, &tmp1byte);
-
-			eRfPowerStateToSet = (tmp1byte&BIT1) ?  eRfOn : eRfOff;
-
-			if((priv->bHwRadioOff == true) && (eRfPowerStateToSet == eRfOn))
-			{
-				RT_TRACE(COMP_RF, "gpiochangeRF  - HW Radio ON\n");
-
-				priv->bHwRadioOff = false;
-				bActuallySet = true;
-			}
-			else if ((priv->bHwRadioOff == false) && (eRfPowerStateToSet == eRfOff))
-			{
-				RT_TRACE(COMP_RF, "gpiochangeRF  - HW Radio OFF\n");
-				priv->bHwRadioOff = true;
-				bActuallySet = true;
-			}
-
-			if(bActuallySet)
-			{
-				#ifdef TO_DO
-				MgntActSet_RF_State(dev, eRfPowerStateToSet, RF_CHANGE_BY_HW);
-				//DrvIFIndicateCurrentPhyStatus(pAdapter);
-				#endif
-			}
-			else
-			{
-				msleep(2000);
-			}
-
-		}
-	}while(TRUE)
-
-}	/* dm_GPIOChangeRF */
-
-#endif
 /*-----------------------------------------------------------------------------
  * Function:	DM_RFPathCheckWorkItemCallBack()
  *
-- 
cgit 


From ea1751438abdaede89c159df095a24480f9e2142 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Sat, 21 Sep 2013 23:42:30 +0300
Subject: staging: rtl8192u: remove code inside #ifdef RTL8190P/RTL8192E in
 r819xU_phy.c

This patch removes the unused code inside #ifdef RTL8190P and #ifdef RTL8192E
guards since RTL8190P and RTL8192E are not defined.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r819xU_phy.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/staging/rtl8192u/r819xU_phy.c b/drivers/staging/rtl8192u/r819xU_phy.c
index a6fac081e42c..17ac1202c906 100644
--- a/drivers/staging/rtl8192u/r819xU_phy.c
+++ b/drivers/staging/rtl8192u/r819xU_phy.c
@@ -1799,12 +1799,6 @@ extern void InitialGainOperateWorkItemCallBack(struct work_struct *work)
 		RT_TRACE(COMP_SCAN, "Scan BBInitialGainRestore 0xa0a is %x\n",
 			 priv->initgain_backup.cca);
 
-#ifdef RTL8190P
-		SetTxPowerLevel8190(Adapter, priv->CurrentChannel);
-#endif
-#ifdef RTL8192E
-		SetTxPowerLevel8190(Adapter, priv->CurrentChannel);
-#endif
 		rtl8192_phy_setTxPower(dev, priv->ieee80211->current_network.channel);
 
 		if (dm_digtable.dig_algorithm == DIG_ALGO_BY_FALSE_ALARM)
-- 
cgit 


From ba9aabb71051b8887093de876c0e065c869a18b0 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Sat, 21 Sep 2013 23:42:31 +0300
Subject: staging: rtl8192u: remove code inside #ifdef RTL8190P in
 r819xU_firmware.c

This patch removes the unused code that resides inside #ifdef RTL8190P since
RTL8190P is not defined.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r819xU_firmware.c | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/drivers/staging/rtl8192u/r819xU_firmware.c b/drivers/staging/rtl8192u/r819xU_firmware.c
index 106740eef335..d6a6de3a64f5 100644
--- a/drivers/staging/rtl8192u/r819xU_firmware.c
+++ b/drivers/staging/rtl8192u/r819xU_firmware.c
@@ -295,16 +295,10 @@ bool init_firmware(struct net_device *dev)
 				mapped_file = pfirmware->firmware_buf;
 				file_length = fw_entry->size;
 			} else {
-#ifdef RTL8190P
-				memcpy(pfirmware->firmware_buf,fw_entry->data,fw_entry->size);
-				mapped_file = pfirmware->firmware_buf;
-				file_length = fw_entry->size;
-#else
 				memset(pfirmware->firmware_buf,0,128);
 				memcpy(&pfirmware->firmware_buf[128],fw_entry->data,fw_entry->size);
 				mapped_file = pfirmware->firmware_buf;
 				file_length = fw_entry->size + 128;
-#endif
 			}
 			pfirmware->firmware_buf_size = file_length;
 		}else if (rst_opt == OPT_FIRMWARE_RESET ) {
@@ -336,15 +330,6 @@ bool init_firmware(struct net_device *dev)
 			 * will set polling bit when firmware code is also configured
 			 */
 			pfirmware->firmware_status = FW_STATUS_1_MOVE_BOOT_CODE;
-#ifdef RTL8190P
-			// To initialize IMEM, CPU move code  from 0x80000080, hence, we send 0x80 byte packet
-			rt_status = fwSendNullPacket(dev, RTL8190_CPU_START_OFFSET);
-			if (rt_status != true)
-			{
-				RT_TRACE(COMP_INIT, "fwSendNullPacket() fail ! \n");
-				goto  download_firmware_fail;
-			}
-#endif
 			//mdelay(1000);
 			/*
 			 * To initialize IMEM, CPU move code  from 0x80000080,
-- 
cgit 


From 91e39f09e537b557bc1dabcc0e30d2292d5fb9e4 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Sat, 21 Sep 2013 23:42:32 +0300
Subject: staging: rtl8192u: remove code inside #ifdef RTL8190P in r8192U_dm.c

This patch removes the unused code that resides inside #ifdef RTL8190P
header guard since RTL8190P is not defined.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r8192U_dm.c | 137 +++--------------------------------
 1 file changed, 12 insertions(+), 125 deletions(-)

diff --git a/drivers/staging/rtl8192u/r8192U_dm.c b/drivers/staging/rtl8192u/r8192U_dm.c
index 1a3808545cee..42c223404461 100644
--- a/drivers/staging/rtl8192u/r8192U_dm.c
+++ b/drivers/staging/rtl8192u/r8192U_dm.c
@@ -632,11 +632,7 @@ static void dm_TXPowerTrackingCallback_TSSI(struct net_device *dev)
 			mdelay(1);
 			continue;
 		}
-#ifdef RTL8190P
-		read_nic_word(dev, 0x1bc, &Avg_TSSI_Meas);
-#else
 		read_nic_word(dev, 0x13c, &Avg_TSSI_Meas);
-#endif
 		if(Avg_TSSI_Meas == 0)
 		{
 			write_nic_byte(dev, 0x1ba, 0);
@@ -645,14 +641,10 @@ static void dm_TXPowerTrackingCallback_TSSI(struct net_device *dev)
 
 		for(k = 0;k < 5; k++)
 		{
-#ifdef RTL8190P
-			read_nic_byte(dev, 0x1d8+k, &tmp_report[k]);
-#else
 			if(k !=4)
 				read_nic_byte(dev, 0x134+k, &tmp_report[k]);
 			else
 				read_nic_byte(dev, 0x13e, &tmp_report[k]);
-#endif
 			RT_TRACE(COMP_POWER_TRACKING, "TSSI_report_value = %d\n", tmp_report[k]);
 		}
 
@@ -699,10 +691,6 @@ static void dm_TXPowerTrackingCallback_TSSI(struct net_device *dev)
 			RT_TRACE(COMP_POWER_TRACKING, "tx power track is done\n");
 			RT_TRACE(COMP_POWER_TRACKING, "priv->rfa_txpowertrackingindex = %d\n", priv->rfa_txpowertrackingindex);
 			RT_TRACE(COMP_POWER_TRACKING, "priv->rfa_txpowertrackingindex_real = %d\n", priv->rfa_txpowertrackingindex_real);
-#ifdef RTL8190P
-			RT_TRACE(COMP_POWER_TRACKING, "priv->rfc_txpowertrackingindex = %d\n", priv->rfc_txpowertrackingindex);
-			RT_TRACE(COMP_POWER_TRACKING, "priv->rfc_txpowertrackingindex_real = %d\n", priv->rfc_txpowertrackingindex_real);
-#endif
 			RT_TRACE(COMP_POWER_TRACKING, "priv->cck_present_attentuation_difference = %d\n", priv->cck_present_attentuation_difference);
 			RT_TRACE(COMP_POWER_TRACKING, "priv->cck_present_attentuation = %d\n", priv->cck_present_attentuation);
 			return;
@@ -711,11 +699,7 @@ static void dm_TXPowerTrackingCallback_TSSI(struct net_device *dev)
 		{
 			if(Avg_TSSI_Meas_from_driver < TSSI_13dBm - E_FOR_TX_POWER_TRACK)
 			{
-				if((priv->rfa_txpowertrackingindex > 0)
-#ifdef RTL8190P
-					&&(priv->rfc_txpowertrackingindex > 0)
-#endif
-				)
+				if (priv->rfa_txpowertrackingindex > 0)
 				{
 					priv->rfa_txpowertrackingindex--;
 					if(priv->rfa_txpowertrackingindex_real > 4)
@@ -723,33 +707,16 @@ static void dm_TXPowerTrackingCallback_TSSI(struct net_device *dev)
 						priv->rfa_txpowertrackingindex_real--;
 						rtl8192_setBBreg(dev, rOFDM0_XATxIQImbalance, bMaskDWord, priv->txbbgain_table[priv->rfa_txpowertrackingindex_real].txbbgain_value);
 					}
-#ifdef RTL8190P
-					priv->rfc_txpowertrackingindex--;
-					if(priv->rfc_txpowertrackingindex_real > 4)
-					{
-						priv->rfc_txpowertrackingindex_real--;
-						rtl8192_setBBreg(dev, rOFDM0_XCTxIQImbalance, bMaskDWord, priv->txbbgain_table[priv->rfc_txpowertrackingindex_real].txbbgain_value);
-					}
-#endif
 				}
 			}
 			else
 			{
-				if((priv->rfa_txpowertrackingindex < 36)
-#ifdef RTL8190P
-					&&(priv->rfc_txpowertrackingindex < 36)
-#endif
-					)
+				if (priv->rfa_txpowertrackingindex < 36)
 				{
 					priv->rfa_txpowertrackingindex++;
 					priv->rfa_txpowertrackingindex_real++;
 					rtl8192_setBBreg(dev, rOFDM0_XATxIQImbalance, bMaskDWord, priv->txbbgain_table[priv->rfa_txpowertrackingindex_real].txbbgain_value);
 
-#ifdef RTL8190P
-					priv->rfc_txpowertrackingindex++;
-					priv->rfc_txpowertrackingindex_real++;
-					rtl8192_setBBreg(dev, rOFDM0_XCTxIQImbalance, bMaskDWord, priv->txbbgain_table[priv->rfc_txpowertrackingindex_real].txbbgain_value);
-#endif
 				}
 			}
 			priv->cck_present_attentuation_difference
@@ -779,10 +746,6 @@ static void dm_TXPowerTrackingCallback_TSSI(struct net_device *dev)
 			}
 		RT_TRACE(COMP_POWER_TRACKING, "priv->rfa_txpowertrackingindex = %d\n", priv->rfa_txpowertrackingindex);
 		RT_TRACE(COMP_POWER_TRACKING, "priv->rfa_txpowertrackingindex_real = %d\n", priv->rfa_txpowertrackingindex_real);
-#ifdef RTL8190P
-		RT_TRACE(COMP_POWER_TRACKING, "priv->rfc_txpowertrackingindex = %d\n", priv->rfc_txpowertrackingindex);
-		RT_TRACE(COMP_POWER_TRACKING, "priv->rfc_txpowertrackingindex_real = %d\n", priv->rfc_txpowertrackingindex_real);
-#endif
 		RT_TRACE(COMP_POWER_TRACKING, "priv->cck_present_attentuation_difference = %d\n", priv->cck_present_attentuation_difference);
 		RT_TRACE(COMP_POWER_TRACKING, "priv->cck_present_attentuation = %d\n", priv->cck_present_attentuation);
 
@@ -928,14 +891,10 @@ extern	void	dm_txpower_trackingcallback(struct work_struct *work)
        struct r8192_priv *priv = container_of(dwork,struct r8192_priv,txpower_tracking_wq);
        struct net_device *dev = priv->ieee80211->dev;
 
-#ifdef RTL8190P
-	dm_TXPowerTrackingCallback_TSSI(dev);
-#else
 	if(priv->bDcut == TRUE)
 		dm_TXPowerTrackingCallback_TSSI(dev);
 	else
 		dm_TXPowerTrackingCallback_ThermalMeter(dev);
-#endif
 }
 
 
@@ -1463,14 +1422,10 @@ static void dm_InitializeTXPowerTracking_ThermalMeter(struct net_device *dev)
 void dm_initialize_txpower_tracking(struct net_device *dev)
 {
 	struct r8192_priv *priv = ieee80211_priv(dev);
-#ifdef RTL8190P
-	dm_InitializeTXPowerTracking_TSSI(dev);
-#else
 	if(priv->bDcut == TRUE)
 		dm_InitializeTXPowerTracking_TSSI(dev);
 	else
 		dm_InitializeTXPowerTracking_ThermalMeter(dev);
-#endif
 }// dm_InitializeTXPowerTracking
 
 
@@ -1668,14 +1623,10 @@ extern void dm_cck_txpower_adjust(
 {	// dm_CCKTxPowerAdjust
 
 	struct r8192_priv *priv = ieee80211_priv(dev);
-#ifdef RTL8190P
-	dm_CCKTxPowerAdjust_TSSI(dev, binch14);
-#else
 	if(priv->bDcut == TRUE)
 		dm_CCKTxPowerAdjust_TSSI(dev, binch14);
 	else
 		dm_CCKTxPowerAdjust_ThermalMeter(dev, binch14);
-#endif
 }
 
 
@@ -2185,11 +2136,7 @@ static void dm_ctrl_initgain_byrssi_by_fwfalse_alarm(
 		{
 			/* 2008/01/11 MH 40MHZ 90/92 register are not the same. */
 			// 2008/02/05 MH SD3-Jerry 92U/92E PD_TH are the same.
-			#ifdef RTL8190P
-				write_nic_byte(dev, rOFDM0_RxDetector1, 0x40);
-			#else
-				write_nic_byte(dev, (rOFDM0_XATxAFE+3), 0x00);
-			#endif
+			write_nic_byte(dev, (rOFDM0_XATxAFE+3), 0x00);
 			/*else if (priv->card_8192 == HARDWARE_TYPE_RTL8190P)
 				write_nic_byte(pAdapter, rOFDM0_RxDetector1, 0x40);
 			*/
@@ -2256,11 +2203,7 @@ static void dm_ctrl_initgain_byrssi_by_fwfalse_alarm(
 		{
 			/* 2008/01/11 MH 40MHZ 90/92 register are not the same. */
 			// 2008/02/05 MH SD3-Jerry 92U/92E PD_TH are the same.
-			#ifdef RTL8190P
-				write_nic_byte(dev, rOFDM0_RxDetector1, 0x42);
-			#else
-				write_nic_byte(dev, (rOFDM0_XATxAFE+3), 0x20);
-			#endif
+			write_nic_byte(dev, (rOFDM0_XATxAFE+3), 0x20);
 			/*
 			else if (priv->card_8192 == HARDWARE_TYPE_RTL8190P)
 				write_nic_byte(dev, rOFDM0_RxDetector1, 0x42);
@@ -2333,11 +2276,7 @@ static void dm_ctrl_initgain_byrssi_highpwr(
 		// 3.1 Higher PD_TH for OFDM for high power state.
 		if (priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20)
 		{
-			#ifdef RTL8190P
-				write_nic_byte(dev, rOFDM0_RxDetector1, 0x41);
-			#else
-				write_nic_byte(dev, (rOFDM0_XATxAFE+3), 0x10);
-			#endif
+			write_nic_byte(dev, (rOFDM0_XATxAFE+3), 0x10);
 
 			/*else if (priv->card_8192 == HARDWARE_TYPE_RTL8190P)
 				write_nic_byte(dev, rOFDM0_RxDetector1, 0x41);
@@ -2361,11 +2300,7 @@ static void dm_ctrl_initgain_byrssi_highpwr(
 			// 3.2 Recover PD_TH for OFDM for normal power region.
 			if (priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20)
 			{
-				#ifdef RTL8190P
-					write_nic_byte(dev, rOFDM0_RxDetector1, 0x42);
-				#else
-					write_nic_byte(dev, (rOFDM0_XATxAFE+3), 0x20);
-				#endif
+				write_nic_byte(dev, (rOFDM0_XATxAFE+3), 0x20);
 				/*else if (priv->card_8192 == HARDWARE_TYPE_RTL8190P)
 					write_nic_byte(dev, rOFDM0_RxDetector1, 0x42);
 				*/
@@ -2507,11 +2442,7 @@ static void dm_pd_th(
 				{
 					/* 2008/01/11 MH 40MHZ 90/92 register are not the same. */
 					// 2008/02/05 MH SD3-Jerry 92U/92E PD_TH are the same.
-					#ifdef RTL8190P
-						write_nic_byte(dev, rOFDM0_RxDetector1, 0x40);
-					#else
-						write_nic_byte(dev, (rOFDM0_XATxAFE+3), 0x00);
-					#endif
+					write_nic_byte(dev, (rOFDM0_XATxAFE+3), 0x00);
 					/*else if (priv->card_8192 == HARDWARE_TYPE_RTL8190P)
 						write_nic_byte(dev, rOFDM0_RxDetector1, 0x40);
 					*/
@@ -2526,11 +2457,7 @@ static void dm_pd_th(
 				{
 					/* 2008/01/11 MH 40MHZ 90/92 register are not the same. */
 					// 2008/02/05 MH SD3-Jerry 92U/92E PD_TH are the same.
-					#ifdef RTL8190P
-						write_nic_byte(dev, rOFDM0_RxDetector1, 0x42);
-					#else
-						write_nic_byte(dev, (rOFDM0_XATxAFE+3), 0x20);
-					#endif
+					write_nic_byte(dev, (rOFDM0_XATxAFE+3), 0x20);
 					/*else if (priv->card_8192 == HARDWARE_TYPE_RTL8190P)
 						write_nic_byte(dev, rOFDM0_RxDetector1, 0x42);
 					*/
@@ -2543,11 +2470,7 @@ static void dm_pd_th(
 				// Higher PD_TH for OFDM for high power state.
 				if (priv->CurrentChannelBW != HT_CHANNEL_WIDTH_20)
 				{
-					#ifdef RTL8190P
-						write_nic_byte(dev, rOFDM0_RxDetector1, 0x41);
-					#else
-						write_nic_byte(dev, (rOFDM0_XATxAFE+3), 0x10);
-					#endif
+					write_nic_byte(dev, (rOFDM0_XATxAFE+3), 0x10);
 					/*else if (priv->card_8192 == HARDWARE_TYPE_RTL8190P)
 						write_nic_byte(dev, rOFDM0_RxDetector1, 0x41);
 					*/
@@ -3207,11 +3130,7 @@ static void dm_init_fsync (struct net_device *dev)
 	priv->ieee80211->fsync_time_interval = 500;
 	priv->ieee80211->fsync_rate_bitmap = 0x0f000800;
 	priv->ieee80211->fsync_rssi_threshold = 30;
-#ifdef RTL8190P
-	priv->ieee80211->bfsync_enable = true;
-#else
 	priv->ieee80211->bfsync_enable = false;
-#endif
 	priv->ieee80211->fsync_multiple_timeinterval = 3;
 	priv->ieee80211->fsync_firstdiff_ratethreshold= 100;
 	priv->ieee80211->fsync_seconddiff_ratethreshold= 200;
@@ -3294,20 +3213,12 @@ extern void dm_fsync_timer_callback(unsigned long data)
 			priv->bswitch_fsync = !priv->bswitch_fsync;
 			if(priv->bswitch_fsync)
 			{
-			#ifdef RTL8190P
-				write_nic_byte(dev, 0xC36, 0x00);
-			#else
 				write_nic_byte(dev,0xC36, 0x1c);
-			#endif
 				write_nic_byte(dev, 0xC3e, 0x90);
 			}
 			else
 			{
-			#ifdef RTL8190P
-				write_nic_byte(dev, 0xC36, 0x40);
-			#else
 				write_nic_byte(dev, 0xC36, 0x5c);
-			#endif
 				write_nic_byte(dev, 0xC3e, 0x96);
 			}
 		}
@@ -3316,11 +3227,7 @@ extern void dm_fsync_timer_callback(unsigned long data)
 			if(priv->bswitch_fsync)
 			{
 				priv->bswitch_fsync  = false;
-			#ifdef RTL8190P
-				write_nic_byte(dev, 0xC36, 0x40);
-			#else
 				write_nic_byte(dev, 0xC36, 0x5c);
-			#endif
 				write_nic_byte(dev, 0xC3e, 0x96);
 			}
 		}
@@ -3343,19 +3250,11 @@ extern void dm_fsync_timer_callback(unsigned long data)
 		if(priv->bswitch_fsync)
 		{
 			priv->bswitch_fsync  = false;
-		#ifdef RTL8190P
-			write_nic_byte(dev, 0xC36, 0x40);
-		#else
 			write_nic_byte(dev, 0xC36, 0x5c);
-		#endif
 			write_nic_byte(dev, 0xC3e, 0x96);
 		}
 		priv->ContinueDiffCount = 0;
-	#ifdef RTL8190P
-		write_nic_dword(dev, rOFDM0_RxDetector2, 0x164052cd);
-	#else
 		write_nic_dword(dev, rOFDM0_RxDetector2, 0x465c52cd);
-	#endif
 	}
 	RT_TRACE(COMP_HALDM, "ContinueDiffCount %d\n", priv->ContinueDiffCount);
 	RT_TRACE(COMP_HALDM, "rateRecord %d rateCount %d, rateCountdiff %d bSwitchFsync %d\n", priv->rate_record, rate_count, rate_count_diff , priv->bswitch_fsync);
@@ -3380,11 +3279,7 @@ static void dm_EndSWFsync(struct net_device *dev)
 	{
 		priv->bswitch_fsync  = false;
 
-		#ifdef RTL8190P
-			write_nic_byte(dev, 0xC36, 0x40);
-		#else
-			write_nic_byte(dev, 0xC36, 0x5c);
-		#endif
+		write_nic_byte(dev, 0xC36, 0x5c);
 
 		write_nic_byte(dev, 0xC3e, 0x96);
 	}
@@ -3502,11 +3397,7 @@ void dm_check_fsync(struct net_device *dev)
 		{
 			if(reg_c38_State != RegC38_Fsync_AP_BCM)
 			{	//For broadcom AP we write different default value
-				#ifdef RTL8190P
-					write_nic_byte(dev, rOFDM0_RxDetector3, 0x15);
-				#else
-					write_nic_byte(dev, rOFDM0_RxDetector3, 0x95);
-				#endif
+				write_nic_byte(dev, rOFDM0_RxDetector3, 0x95);
 
 				reg_c38_State = RegC38_Fsync_AP_BCM;
 			}
@@ -3537,11 +3428,7 @@ void dm_check_fsync(struct net_device *dev)
 				{
 					if(reg_c38_State != RegC38_NonFsync_Other_AP)
 					{
-						#ifdef RTL8190P
-							write_nic_byte(dev, rOFDM0_RxDetector3, 0x10);
-						#else
-							write_nic_byte(dev, rOFDM0_RxDetector3, 0x90);
-						#endif
+						write_nic_byte(dev, rOFDM0_RxDetector3, 0x90);
 
 						reg_c38_State = RegC38_NonFsync_Other_AP;
 					}
-- 
cgit 


From f326fe2a63bf6dd79b46e196f2d7528aa59f587d Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Sat, 21 Sep 2013 23:42:33 +0300
Subject: staging: rtl8192u: remove #ifndef RTL8190P guard from r8192U_dm.c

This patch removes #ifndef RTL8190P header guard since RTL8190P is not
defined anywhere in rtl8192u code.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r8192U_dm.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/staging/rtl8192u/r8192U_dm.c b/drivers/staging/rtl8192u/r8192U_dm.c
index 42c223404461..6c87178eb6f2 100644
--- a/drivers/staging/rtl8192u/r8192U_dm.c
+++ b/drivers/staging/rtl8192u/r8192U_dm.c
@@ -122,9 +122,7 @@ static	void dm_init_ctstoself(struct net_device *dev);
 // DM --> EDCA turbo mode control
 static	void	dm_check_edca_turbo(struct net_device *dev);
 
-#ifndef RTL8190P
 //static	void	dm_gpio_change_rf(struct net_device *dev);
-#endif
 // DM --> Check PBC
 static	void dm_check_pbc_gpio(struct net_device *dev);
 
@@ -3285,9 +3283,7 @@ static void dm_EndSWFsync(struct net_device *dev)
 	}
 
 	priv->ContinueDiffCount = 0;
-#ifndef RTL8190P
 	write_nic_dword(dev, rOFDM0_RxDetector2, 0x465c52cd);
-#endif
 
 }
 
@@ -3326,9 +3322,7 @@ static void dm_StartSWFsync(struct net_device *dev)
 	priv->fsync_timer.expires = jiffies + MSECS(priv->ieee80211->fsync_time_interval);
 	add_timer(&priv->fsync_timer);
 
-#ifndef RTL8190P
 	write_nic_dword(dev, rOFDM0_RxDetector2, 0x465c12cd);
-#endif
 
 }
 
-- 
cgit 


From 97d6f4a9f95b4d69f9bdc937f3c63f81f3edc4c8 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Sat, 21 Sep 2013 23:42:34 +0300
Subject: staging: rtl8192u: remove #ifndef RTL8192U and the code inside it

This patch removes the unused code inside #ifndef RTL8192U header guard
and the guard itself, since RTL8192U is defined.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r8192U_dm.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/staging/rtl8192u/r8192U_dm.c b/drivers/staging/rtl8192u/r8192U_dm.c
index 6c87178eb6f2..41fb67b7337d 100644
--- a/drivers/staging/rtl8192u/r8192U_dm.c
+++ b/drivers/staging/rtl8192u/r8192U_dm.c
@@ -100,14 +100,6 @@ static	void	dm_check_txpower_tracking(struct net_device *dev);
 //static	void	dm_txpower_reset_recovery(struct net_device *dev);
 
 
-// DM --> BB init gain restore
-#ifndef RTL8192U
-static	void	dm_bb_initialgain_restore(struct net_device *dev);
-
-
-// DM --> BB init gain backup
-static	void	dm_bb_initialgain_backup(struct net_device *dev);
-#endif
 // DM --> Dynamic Init Gain by RSSI
 static	void	dm_dig_init(struct net_device *dev);
 static	void	dm_ctrl_initgain_byrssi(struct net_device *dev);
-- 
cgit 


From b6792288087a2a28a85333fe027b545b21116cca Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Sat, 21 Sep 2013 23:42:35 +0300
Subject: staging: rtl8192u: remove code inside #ifdef RTL8190P in
 r8190_rtl8256.h

This patch removes the unused code inside #ifdef RTL8190P header guard,
since RTL8190P is not defined.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r8190_rtl8256.h | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/staging/rtl8192u/r8190_rtl8256.h b/drivers/staging/rtl8192u/r8190_rtl8256.h
index 592e7807fa42..fa6dd37d85e6 100644
--- a/drivers/staging/rtl8192u/r8190_rtl8256.h
+++ b/drivers/staging/rtl8192u/r8190_rtl8256.h
@@ -13,11 +13,7 @@
 #ifndef RTL8225H
 #define RTL8225H
 
-#ifdef RTL8190P
-#define RTL819X_TOTAL_RF_PATH 4 //for 90P
-#else
 #define RTL819X_TOTAL_RF_PATH 2 //for 8192U
-#endif
 extern void PHY_SetRF8256Bandwidth(struct net_device *dev , HT_CHANNEL_WIDTH Bandwidth);
 extern void PHY_RF8256_Config(struct net_device *dev);
 extern void phy_RF8256_Config_ParaFile(struct net_device *dev);
-- 
cgit 


From ab00bf09ec0f098406966e0d9585919a76137d27 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Sat, 21 Sep 2013 23:42:36 +0300
Subject: staging: rt8192u: remove #ifdef RTL8192U in r8192U.h

This patch removes #ifdef RTL8192U header guard and the code that falls
outside it, since RTL8192U is defined.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r8192U.h | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/staging/rtl8192u/r8192U.h b/drivers/staging/rtl8192u/r8192U.h
index b484ee128c13..4c46bb25a6b3 100644
--- a/drivers/staging/rtl8192u/r8192U.h
+++ b/drivers/staging/rtl8192u/r8192U.h
@@ -409,15 +409,11 @@ typedef struct rx_drvinfo_819x_usb {
 #define	USB_HWDESC_HEADER_LEN		sizeof(tx_desc_819x_usb)
 #define TX_PACKET_SHIFT_BYTES		(USB_HWDESC_HEADER_LEN + sizeof(tx_fwinfo_819x_usb))
 #define MAX_FRAGMENT_COUNT		8
-#ifdef RTL8192U
 #ifdef USB_TX_DRIVER_AGGREGATION_ENABLE
 #define MAX_TRANSMIT_BUFFER_SIZE			32000
 #else
 #define MAX_TRANSMIT_BUFFER_SIZE			8000
 #endif
-#else
-#define MAX_TRANSMIT_BUFFER_SIZE	(1600+(MAX_802_11_HEADER_LENGTH+ENCRYPTION_MAX_OVERHEAD)*MAX_FRAGMENT_COUNT)
-#endif
 #ifdef USB_TX_DRIVER_AGGREGATION_ENABLE
 #define TX_PACKET_DRVAGGR_SUBFRAME_SHIFT_BYTES (sizeof(tx_desc_819x_usb_aggr_subframe) + sizeof(tx_fwinfo_819x_usb))
 #endif
-- 
cgit 


From 3dd89f9f1bcbb0cbca099abbd811841389cbcf3f Mon Sep 17 00:00:00 2001
From: Tobias Polzer <tobias.polzer@fau.de>
Date: Mon, 9 Sep 2013 16:13:15 +0200
Subject: staging: usbip: Fix man-pages for usbip userspace utilities

The usbip userspace utilities contained some half-documented (only in
--help, not in man) options. They were added to the man-pages of usbip
and usbipd.
Also a typo in the usbip headline was fixed.

Signed-off-by: Tobias Polzer <tobias.polzer@fau.de>
Signed-off-by: Dominik Paulus <dominik.paulus@fau.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/usbip/userspace/doc/usbip.8  |  8 +++++++-
 drivers/staging/usbip/userspace/doc/usbipd.8 | 27 ++++++++++++++++++++++++++-
 2 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/usbip/userspace/doc/usbip.8 b/drivers/staging/usbip/userspace/doc/usbip.8
index ccdadc87c478..a6097be25d28 100644
--- a/drivers/staging/usbip/userspace/doc/usbip.8
+++ b/drivers/staging/usbip/userspace/doc/usbip.8
@@ -3,7 +3,7 @@
 usbip \- manage USB/IP devices
 .SH SYNOPSIS
 .B usbip
-[\foptions\R] <\fIcommand\fR> <\fIargs\fR>
+[\fIoptions\fR] <\fIcommand\fR> <\fIargs\fR>
 
 .SH DESCRIPTION
 On a USB/IP server, devices can be listed, bound, and unbound using
@@ -23,6 +23,12 @@ Print debugging information.
 Log to syslog.
 .PP
 
+.HP
+\fB\-\-tcp-port PORT\fR
+.IP
+Connect to PORT on remote host (used for attach and list --remote).
+.PP
+
 .SH COMMANDS
 .HP
 \fBversion\fR
diff --git a/drivers/staging/usbip/userspace/doc/usbipd.8 b/drivers/staging/usbip/userspace/doc/usbipd.8
index d896936f1780..ac4635db3f03 100644
--- a/drivers/staging/usbip/userspace/doc/usbipd.8
+++ b/drivers/staging/usbip/userspace/doc/usbipd.8
@@ -14,9 +14,21 @@ Devices have to explicitly be exported using
 before usbipd makes them available to other hosts.
 
 The daemon accepts connections from USB/IP clients
-on TCP port 3240.
+on TCP port 3240 by default.
 
 .SH OPTIONS
+.HP
+\fB\-4\fR, \fB\-\-ipv4\fR
+.IP
+Bind to IPv4. Default is both.
+.PP
+
+.HP
+\fB\-6\fR, \fB\-\-ipv6\fR
+.IP
+Bind to IPv6. Default is both.
+.PP
+
 .HP
 \fB\-D\fR, \fB\-\-daemon\fR
 .IP
@@ -29,6 +41,19 @@ Run as a daemon process.
 Print debugging information.
 .PP
 
+.HP
+\fB\-PFILE\fR, \fB\-\-pid FILE\fR
+.IP
+Write process id to FILE.
+.br
+If no FILE specified, use /var/run/usbipd.pid
+.PP
+
+\fB\-tPORT\fR, \fB\-\-tcp\-port PORT\fR
+.IP
+Listen on TCP/IP port PORT.
+.PP
+
 \fB\-h\fR, \fB\-\-help\fR
 .IP
 Print the program help message and exit.
-- 
cgit 


From d78b1406efec50b2100a8a797c6096a7c78d73c3 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Sun, 1 Sep 2013 22:11:55 -0300
Subject: staging: imx-drm: imx-ldb: Staticize of_get_data_mapping()

Staticize of_get_data_mapping() in order to fix the following sparse warning:

drivers/staging/imx-drm/imx-ldb.c:424:11: warning: symbol 'of_get_data_mapping' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/imx-drm/imx-ldb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/imx-drm/imx-ldb.c b/drivers/staging/imx-drm/imx-ldb.c
index af733ea48565..b81ed41766b9 100644
--- a/drivers/staging/imx-drm/imx-ldb.c
+++ b/drivers/staging/imx-drm/imx-ldb.c
@@ -421,7 +421,7 @@ static const char *imx_ldb_bit_mappings[] = {
 	[LVDS_BIT_MAP_JEIDA] = "jeida",
 };
 
-const int of_get_data_mapping(struct device_node *np)
+static const int of_get_data_mapping(struct device_node *np)
 {
 	const char *bm;
 	int ret, i;
-- 
cgit 


From 05c92da0c52494caf97d58be1b05b1f95a79ce4e Mon Sep 17 00:00:00 2001
From: Tom Gundersen <teg@jklm.no>
Date: Tue, 10 Sep 2013 23:30:14 +0200
Subject: usb: ohci/uhci - add soft dependencies on ehci_pci

Support for specifying soft dependencies in the modules themselves was
introduced in commit 7cb14ba.

In Arch we have always been shipping a module.d(5) fragment ordering ohci/uhci
after ehci. If this ordering is really necessary, it would be great to move it
to the kernel and getting the correct fragment generated by depmod.

Signed-off-by: Tom Gundersen <teg@jklm.no>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ohci-pci.c | 1 +
 drivers/usb/host/uhci-pci.c | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c
index ec337c2bd5e0..eedf97c1790e 100644
--- a/drivers/usb/host/ohci-pci.c
+++ b/drivers/usb/host/ohci-pci.c
@@ -323,3 +323,4 @@ module_exit(ohci_pci_cleanup);
 
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
+MODULE_SOFTDEP("pre: ehci_pci");
diff --git a/drivers/usb/host/uhci-pci.c b/drivers/usb/host/uhci-pci.c
index c300bd2f7d1c..f7bbf43be039 100644
--- a/drivers/usb/host/uhci-pci.c
+++ b/drivers/usb/host/uhci-pci.c
@@ -299,3 +299,5 @@ static struct pci_driver uhci_pci_driver = {
 	},
 #endif
 };
+
+MODULE_SOFTDEP("pre: ehci_pci");
-- 
cgit 


From 4a29567b77bb87e8a488510f2d37c612e008d21b Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Tue, 10 Sep 2013 15:34:39 +0800
Subject: chipidea: udc: free pending TD at removal procedure

There is a pending TD which is not freed after request finishes,
we do this due to a controller bug. This TD needs to be freed when
the driver is removed. It prints below error message when unload
chipidea driver at current code:
"ci_hdrc ci_hdrc.0: dma_pool_destroy ci_hw_td, b0001000 busy"
It indicates the buffer at dma pool are still in use.

This commit will free the pending TD at driver's removal procedure,
it can fix the problem described above.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/chipidea/udc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 6b4c2f2eb946..4ef4edf2990f 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -1600,6 +1600,8 @@ static void destroy_eps(struct ci_hdrc *ci)
 	for (i = 0; i < ci->hw_ep_max; i++) {
 		struct ci_hw_ep *hwep = &ci->ci_hw_ep[i];
 
+		if (hwep->pending_td)
+			free_pending_td(hwep);
 		dma_pool_free(ci->qh_pool, hwep->qh.ptr, hwep->qh.dma);
 	}
 }
-- 
cgit 


From a746c286f32126ce6f0f98c111bb7ea15943e083 Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Tue, 17 Sep 2013 12:37:18 +0800
Subject: usb: host: delete chipidea dependency

Now, chipidea host has already depended on USB_EHCI_HCD

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index b3f20d7f15de..6c2d7df40edf 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -54,7 +54,7 @@ config USB_EHCI_HCD
 
 config USB_EHCI_ROOT_HUB_TT
 	bool "Root Hub Transaction Translators"
-	depends on USB_EHCI_HCD || USB_CHIPIDEA_HOST
+	depends on USB_EHCI_HCD
 	---help---
 	  Some EHCI chips have vendor-specific extensions to integrate
 	  transaction translators, so that no OHCI or UHCI companion
@@ -66,7 +66,7 @@ config USB_EHCI_ROOT_HUB_TT
 
 config USB_EHCI_TT_NEWSCHED
 	bool "Improved Transaction Translator scheduling"
-	depends on USB_EHCI_HCD || USB_CHIPIDEA_HOST
+	depends on USB_EHCI_HCD
 	default y
 	---help---
 	  This changes the periodic scheduling code to fill more of the low
-- 
cgit 


From 92b336d7f665c39cc3be774b3d051fe40bf35e5c Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Tue, 17 Sep 2013 12:37:19 +0800
Subject: usb: chipidea: udc: Consolidate the call of disconnect

The udc-core will call gadget's driver->disconnect, so we should avoid
calling gadget's disconnect again at ci_udc_stop in case the gadget's
unbind free some structs which is still used at gadget's disconnect.

Tested-by: Marek Vasut <marex@denx.de>
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/chipidea/udc.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 4ef4edf2990f..629aaa9fc92f 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -686,9 +686,6 @@ static int _gadget_stop_activity(struct usb_gadget *gadget)
 	usb_ep_fifo_flush(&ci->ep0out->ep);
 	usb_ep_fifo_flush(&ci->ep0in->ep);
 
-	if (ci->driver)
-		ci->driver->disconnect(gadget);
-
 	/* make sure to disable all endpoints */
 	gadget_for_each_ep(ep, gadget) {
 		usb_ep_disable(ep);
@@ -717,6 +714,11 @@ __acquires(ci->lock)
 {
 	int retval;
 
+	if (ci->gadget.speed != USB_SPEED_UNKNOWN) {
+		if (ci->driver)
+			ci->driver->disconnect(&ci->gadget);
+	}
+
 	spin_unlock(&ci->lock);
 	retval = _gadget_stop_activity(&ci->gadget);
 	if (retval)
@@ -1461,6 +1463,8 @@ static int ci_udc_vbus_session(struct usb_gadget *_gadget, int is_active)
 			hw_device_state(ci, ci->ep0out->qh.dma);
 			dev_dbg(ci->dev, "Connected to host\n");
 		} else {
+			if (ci->driver)
+				ci->driver->disconnect(&ci->gadget);
 			hw_device_state(ci, 0);
 			if (ci->platdata->notify_event)
 				ci->platdata->notify_event(ci,
-- 
cgit 


From c22600c3ea1d706cfb0fc4a540c4fb356f7ca814 Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Tue, 17 Sep 2013 12:37:22 +0800
Subject: usb: chipidea: move platform related things to ci_get_platdata

Like vbus, the dr_mode and phy_mode are also got from glue layer's
platform data or device node.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/chipidea/core.c | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 94626409559a..d847e73bca18 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -381,6 +381,15 @@ static int ci_get_platdata(struct device *dev,
 		return PTR_ERR(platdata->reg_vbus);
 	}
 
+	if (!platdata->phy_mode)
+		platdata->phy_mode = of_usb_get_phy_mode(dev->of_node);
+
+	if (!platdata->dr_mode)
+		platdata->dr_mode = of_usb_get_dr_mode(dev->of_node);
+
+	if (platdata->dr_mode == USB_DR_MODE_UNKNOWN)
+		platdata->dr_mode = USB_DR_MODE_OTG;
+
 	return 0;
 }
 
@@ -473,7 +482,6 @@ static int ci_hdrc_probe(struct platform_device *pdev)
 	void __iomem	*base;
 	int		ret;
 	enum usb_dr_mode dr_mode;
-	struct device_node *of_node = dev->of_node ?: dev->parent->of_node;
 
 	if (!dev->platform_data) {
 		dev_err(dev, "platform data missing\n");
@@ -514,17 +522,8 @@ static int ci_hdrc_probe(struct platform_device *pdev)
 
 	ci_get_otg_capable(ci);
 
-	if (!ci->platdata->phy_mode)
-		ci->platdata->phy_mode = of_usb_get_phy_mode(of_node);
-
 	hw_phymode_configure(ci);
 
-	if (!ci->platdata->dr_mode)
-		ci->platdata->dr_mode = of_usb_get_dr_mode(of_node);
-
-	if (ci->platdata->dr_mode == USB_DR_MODE_UNKNOWN)
-		ci->platdata->dr_mode = USB_DR_MODE_OTG;
-
 	dr_mode = ci->platdata->dr_mode;
 	/* initialize role(s) before the interrupt is requested */
 	if (dr_mode == USB_DR_MODE_OTG || dr_mode == USB_DR_MODE_HOST) {
-- 
cgit 


From b85862654cdd9bfa71eb68ea8f672aa4fef15d22 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 15:16:34 +0530
Subject: usb: dwc3: Remove redundant pci_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc3/dwc3-pci.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 997ebe420bc9..f41ce3627164 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -164,7 +164,6 @@ static int dwc3_pci_probe(struct pci_dev *pci,
 	return 0;
 
 err3:
-	pci_set_drvdata(pci, NULL);
 	platform_device_put(dwc3);
 err1:
 	pci_disable_device(pci);
@@ -179,7 +178,6 @@ static void dwc3_pci_remove(struct pci_dev *pci)
 	platform_device_unregister(glue->dwc3);
 	platform_device_unregister(glue->usb2_phy);
 	platform_device_unregister(glue->usb3_phy);
-	pci_set_drvdata(pci, NULL);
 	pci_disable_device(pci);
 }
 
-- 
cgit 


From d47aa4536dfc9385e02a4dcbed2cf7bea3a18492 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 15:06:40 +0530
Subject: usb: gadget: Remove redundant pci_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/amd5536udc.c | 2 --
 drivers/usb/gadget/goku_udc.c   | 1 -
 drivers/usb/gadget/net2280.c    | 1 -
 drivers/usb/gadget/pch_udc.c    | 1 -
 4 files changed, 5 deletions(-)

diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c
index a9a4346c83aa..54a1e2954cea 100644
--- a/drivers/usb/gadget/amd5536udc.c
+++ b/drivers/usb/gadget/amd5536udc.c
@@ -3078,8 +3078,6 @@ static void udc_pci_remove(struct pci_dev *pdev)
 	if (dev->active)
 		pci_disable_device(pdev);
 
-	pci_set_drvdata(pdev, NULL);
-
 	udc_remove(dev);
 }
 
diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c
index c64deb9e3d62..74bb8df82876 100644
--- a/drivers/usb/gadget/goku_udc.c
+++ b/drivers/usb/gadget/goku_udc.c
@@ -1701,7 +1701,6 @@ static void goku_remove(struct pci_dev *pdev)
 	if (dev->enabled)
 		pci_disable_device(pdev);
 
-	pci_set_drvdata(pdev, NULL);
 	dev->regs = NULL;
 
 	INFO(dev, "unbind\n");
diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c
index 0781bff70015..9fbc8fe5ecc0 100644
--- a/drivers/usb/gadget/net2280.c
+++ b/drivers/usb/gadget/net2280.c
@@ -2680,7 +2680,6 @@ static void net2280_remove (struct pci_dev *pdev)
 	if (dev->enabled)
 		pci_disable_device (pdev);
 	device_remove_file (&pdev->dev, &dev_attr_registers);
-	pci_set_drvdata (pdev, NULL);
 
 	INFO (dev, "unbind\n");
 }
diff --git a/drivers/usb/gadget/pch_udc.c b/drivers/usb/gadget/pch_udc.c
index 24174e1d1564..32d5e923750b 100644
--- a/drivers/usb/gadget/pch_udc.c
+++ b/drivers/usb/gadget/pch_udc.c
@@ -3080,7 +3080,6 @@ static void pch_udc_remove(struct pci_dev *pdev)
 	if (dev->active)
 		pci_disable_device(pdev);
 	kfree(dev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 #ifdef CONFIG_PM
-- 
cgit 


From 22b4f0cd1d4d98f50213e9a37ead654e80b54b9d Mon Sep 17 00:00:00 2001
From: Huang Rui <ray.huang@amd.com>
Date: Mon, 16 Sep 2013 23:47:27 +0800
Subject: usb: pci-quirks: refactor AMD quirk to abstract AMD chipset types

This patch abstracts out a AMD chipset type which includes southbridge
generation and its revision. When os excutes usb_amd_find_chipset_info
routine to initialize AMD chipset type, driver will know which kind of
chipset is used.

This update has below benifits:
- Driver is able to confirm which southbridge generations and their
  revision are used, with chipset detection once.
- To describe chipset generations with enumeration types brings better
  readability.
- It's flexible to filter AMD platforms to implement new quirks in future.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Cc: Andiry Xu <andiry.xu@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/pci-quirks.c | 104 ++++++++++++++++++++++++++++++++----------
 1 file changed, 80 insertions(+), 24 deletions(-)

diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 2c76ef1320ea..d1e68d887f6e 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -79,11 +79,30 @@
 #define USB_INTEL_USB3_PSSEN   0xD8
 #define USB_INTEL_USB3PRM      0xDC
 
+/*
+ * amd_chipset_gen values represent AMD different chipset generations
+ */
+enum amd_chipset_gen {
+	NOT_AMD_CHIPSET = 0,
+	AMD_CHIPSET_SB600,
+	AMD_CHIPSET_SB700,
+	AMD_CHIPSET_SB800,
+	AMD_CHIPSET_HUDSON2,
+	AMD_CHIPSET_BOLTON,
+	AMD_CHIPSET_YANGTZE,
+	AMD_CHIPSET_UNKNOWN,
+};
+
+struct amd_chipset_type {
+	enum amd_chipset_gen gen;
+	u8 rev;
+};
+
 static struct amd_chipset_info {
 	struct pci_dev	*nb_dev;
 	struct pci_dev	*smbus_dev;
 	int nb_type;
-	int sb_type;
+	struct amd_chipset_type sb_type;
 	int isoc_reqs;
 	int probe_count;
 	int probe_result;
@@ -91,6 +110,51 @@ static struct amd_chipset_info {
 
 static DEFINE_SPINLOCK(amd_lock);
 
+/*
+ * amd_chipset_sb_type_init - initialize amd chipset southbridge type
+ *
+ * AMD FCH/SB generation and revision is identified by SMBus controller
+ * vendor, device and revision IDs.
+ *
+ * Returns: 1 if it is an AMD chipset, 0 otherwise.
+ */
+int amd_chipset_sb_type_init(struct amd_chipset_info *pinfo)
+{
+	u8 rev = 0;
+	pinfo->sb_type.gen = AMD_CHIPSET_UNKNOWN;
+
+	pinfo->smbus_dev = pci_get_device(PCI_VENDOR_ID_ATI,
+			PCI_DEVICE_ID_ATI_SBX00_SMBUS, NULL);
+	if (pinfo->smbus_dev) {
+		rev = pinfo->smbus_dev->revision;
+		if (rev >= 0x10 && rev <= 0x1f)
+			pinfo->sb_type.gen = AMD_CHIPSET_SB600;
+		else if (rev >= 0x30 && rev <= 0x3f)
+			pinfo->sb_type.gen = AMD_CHIPSET_SB700;
+		else if (rev >= 0x40 && rev <= 0x4f)
+			pinfo->sb_type.gen = AMD_CHIPSET_SB800;
+	} else {
+		pinfo->smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
+				PCI_DEVICE_ID_AMD_HUDSON2_SMBUS, NULL);
+
+		if (!pinfo->smbus_dev) {
+			pinfo->sb_type.gen = NOT_AMD_CHIPSET;
+			return 0;
+		}
+
+		rev = pinfo->smbus_dev->revision;
+		if (rev >= 0x11 && rev <= 0x14)
+			pinfo->sb_type.gen = AMD_CHIPSET_HUDSON2;
+		else if (rev >= 0x15 && rev <= 0x18)
+			pinfo->sb_type.gen = AMD_CHIPSET_BOLTON;
+		else if (rev >= 0x39 && rev <= 0x3a)
+			pinfo->sb_type.gen = AMD_CHIPSET_YANGTZE;
+	}
+
+	pinfo->sb_type.rev = rev;
+	return 1;
+}
+
 void sb800_prefetch(struct device *dev, int on)
 {
 	u16 misc;
@@ -106,7 +170,6 @@ EXPORT_SYMBOL_GPL(sb800_prefetch);
 
 int usb_amd_find_chipset_info(void)
 {
-	u8 rev = 0;
 	unsigned long flags;
 	struct amd_chipset_info info;
 	int ret;
@@ -122,27 +185,17 @@ int usb_amd_find_chipset_info(void)
 	memset(&info, 0, sizeof(info));
 	spin_unlock_irqrestore(&amd_lock, flags);
 
-	info.smbus_dev = pci_get_device(PCI_VENDOR_ID_ATI, 0x4385, NULL);
-	if (info.smbus_dev) {
-		rev = info.smbus_dev->revision;
-		if (rev >= 0x40)
-			info.sb_type = 1;
-		else if (rev >= 0x30 && rev <= 0x3b)
-			info.sb_type = 3;
-	} else {
-		info.smbus_dev = pci_get_device(PCI_VENDOR_ID_AMD,
-						0x780b, NULL);
-		if (!info.smbus_dev) {
-			ret = 0;
-			goto commit;
-		}
-
-		rev = info.smbus_dev->revision;
-		if (rev >= 0x11 && rev <= 0x18)
-			info.sb_type = 2;
+	if (!amd_chipset_sb_type_init(&info)) {
+		ret = 0;
+		goto commit;
 	}
 
-	if (info.sb_type == 0) {
+	/* Below chipset generations needn't enable AMD PLL quirk */
+	if (info.sb_type.gen == AMD_CHIPSET_UNKNOWN ||
+			info.sb_type.gen == AMD_CHIPSET_SB600 ||
+			info.sb_type.gen == AMD_CHIPSET_YANGTZE ||
+			(info.sb_type.gen == AMD_CHIPSET_SB700 &&
+			info.sb_type.rev > 0x3b)) {
 		if (info.smbus_dev) {
 			pci_dev_put(info.smbus_dev);
 			info.smbus_dev = NULL;
@@ -229,7 +282,9 @@ static void usb_amd_quirk_pll(int disable)
 		}
 	}
 
-	if (amd_chipset.sb_type == 1 || amd_chipset.sb_type == 2) {
+	if (amd_chipset.sb_type.gen == AMD_CHIPSET_SB800 ||
+			amd_chipset.sb_type.gen == AMD_CHIPSET_HUDSON2 ||
+			amd_chipset.sb_type.gen == AMD_CHIPSET_BOLTON) {
 		outb_p(AB_REG_BAR_LOW, 0xcd6);
 		addr_low = inb_p(0xcd7);
 		outb_p(AB_REG_BAR_HIGH, 0xcd6);
@@ -240,7 +295,8 @@ static void usb_amd_quirk_pll(int disable)
 		outl_p(0x40, AB_DATA(addr));
 		outl_p(0x34, AB_INDX(addr));
 		val = inl_p(AB_DATA(addr));
-	} else if (amd_chipset.sb_type == 3) {
+	} else if (amd_chipset.sb_type.gen == AMD_CHIPSET_SB700 &&
+			amd_chipset.sb_type.rev <= 0x3b) {
 		pci_read_config_dword(amd_chipset.smbus_dev,
 					AB_REG_BAR_SB700, &addr);
 		outl(AX_INDXC, AB_INDX(addr));
@@ -353,7 +409,7 @@ void usb_amd_dev_put(void)
 	amd_chipset.nb_dev = NULL;
 	amd_chipset.smbus_dev = NULL;
 	amd_chipset.nb_type = 0;
-	amd_chipset.sb_type = 0;
+	memset(&amd_chipset.sb_type, 0, sizeof(amd_chipset.sb_type));
 	amd_chipset.isoc_reqs = 0;
 	amd_chipset.probe_result = 0;
 
-- 
cgit 


From 7868943db1668fba898cf71bed1506c19d6958aa Mon Sep 17 00:00:00 2001
From: Huang Rui <ray.huang@amd.com>
Date: Mon, 16 Sep 2013 23:47:28 +0800
Subject: usb: core: implement AMD remote wakeup quirk
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The following patch is required to resolve remote wake issues with
certain devices.

Issue description:
If the remote wake is issued from the device in a specific timing
condition while the system is entering sleep state then it may cause
system to auto wake on subsequent sleep cycle.

Root cause:
Host controller rebroadcasts the Resume signal > 100 µseconds after
receiving the original resume event from the device. For proper
function, some devices may require the rebroadcast of resume event
within the USB spec of 100µS.

Workaroud:
1. Filter the AMD platforms with Yangtze chipset, then judge of all the usb
devices are mouse or not. And get out the port id which attached a mouse
with Pixart controller.
2. Then reset the port which attached issue device during system resume
from S3.

[Q] Why the special devices are only mice? Would high speed devices
such as 3G modem or USB Bluetooth adapter trigger this issue?
- Current this sensitivity is only confined to devices that use Pixart
  controllers. This controller is designed for use with LS mouse
devices only. We have not observed any other devices failing. There
may be a small risk for other devices also but this patch (reset
device in resume phase) will cover the cases if required.

[Q] Shouldn’t the resume signal be sent within 100 us for every
device?
- The Host controller may not send the resume signal within 100us,
  this our host controller specification change. This is why we
require the patch to prevent side effects on certain known devices.

[Q] Why would clicking mouse INTENSELY to wake the system up trigger
this issue?
- This behavior is specific to the devices that use Pixart controller.
  It is timing dependent on when the resume event is triggered during
the sleep state.

[Q] Is it a host controller issue or mouse?
- It is the host controller behavior during resume that triggers the
  device incorrect behavior on the next resume.

This patch sets USB_QUIRK_RESET_RESUME flag for these Pixart-based mice
when they attached to platforms with AMD Yangtze chipset.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Suggested-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hcd-pci.c    |  3 +++
 drivers/usb/core/quirks.c     | 37 +++++++++++++++++++++++++++++++++++++
 drivers/usb/host/pci-quirks.c | 12 ++++++++++++
 include/linux/usb/hcd.h       |  3 +++
 4 files changed, 55 insertions(+)

diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c
index b9d3c43e3859..dfe9d0f22978 100644
--- a/drivers/usb/core/hcd-pci.c
+++ b/drivers/usb/core/hcd-pci.c
@@ -215,6 +215,9 @@ int usb_hcd_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 		goto disable_pci;
 	}
 
+	hcd->amd_resume_bug = (usb_hcd_amd_remote_wakeup_quirk(dev) &&
+			driver->flags & (HCD_USB11 | HCD_USB3)) ? 1 : 0;
+
 	if (driver->flags & HCD_MEMORY) {
 		/* EHCI, OHCI */
 		hcd->rsrc_start = pci_resource_start(dev, 0);
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 5b44cd47da5b..74d18c8b7a88 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -13,6 +13,7 @@
 
 #include <linux/usb.h>
 #include <linux/usb/quirks.h>
+#include <linux/usb/hcd.h>
 #include "usb.h"
 
 /* Lists of quirky USB devices, split in device quirks and interface quirks.
@@ -155,6 +156,21 @@ static const struct usb_device_id usb_interface_quirk_list[] = {
 	{ }  /* terminating entry must be last */
 };
 
+static const struct usb_device_id usb_amd_resume_quirk_list[] = {
+	/* Lenovo Mouse with Pixart controller */
+	{ USB_DEVICE(0x17ef, 0x602e), .driver_info = USB_QUIRK_RESET_RESUME },
+
+	/* Pixart Mouse */
+	{ USB_DEVICE(0x093a, 0x2500), .driver_info = USB_QUIRK_RESET_RESUME },
+	{ USB_DEVICE(0x093a, 0x2510), .driver_info = USB_QUIRK_RESET_RESUME },
+	{ USB_DEVICE(0x093a, 0x2521), .driver_info = USB_QUIRK_RESET_RESUME },
+
+	/* Logitech Optical Mouse M90/M100 */
+	{ USB_DEVICE(0x046d, 0xc05a), .driver_info = USB_QUIRK_RESET_RESUME },
+
+	{ }  /* terminating entry must be last */
+};
+
 static bool usb_match_any_interface(struct usb_device *udev,
 				    const struct usb_device_id *id)
 {
@@ -181,6 +197,18 @@ static bool usb_match_any_interface(struct usb_device *udev,
 	return false;
 }
 
+int usb_amd_resume_quirk(struct usb_device *udev)
+{
+	struct usb_hcd *hcd;
+
+	hcd = bus_to_hcd(udev->bus);
+	/* The device should be attached directly to root hub */
+	if (udev->level == 1 && hcd->amd_resume_bug == 1)
+		return 1;
+
+	return 0;
+}
+
 static u32 __usb_detect_quirks(struct usb_device *udev,
 			       const struct usb_device_id *id)
 {
@@ -206,6 +234,15 @@ static u32 __usb_detect_quirks(struct usb_device *udev,
 void usb_detect_quirks(struct usb_device *udev)
 {
 	udev->quirks = __usb_detect_quirks(udev, usb_quirk_list);
+
+	/*
+	 * Pixart-based mice would trigger remote wakeup issue on AMD
+	 * Yangtze chipset, so set them as RESET_RESUME flag.
+	 */
+	if (usb_amd_resume_quirk(udev))
+		udev->quirks |= __usb_detect_quirks(udev,
+				usb_amd_resume_quirk_list);
+
 	if (udev->quirks)
 		dev_dbg(&udev->dev, "USB quirks for this device: %x\n",
 			udev->quirks);
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index d1e68d887f6e..17eb1916e65e 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -250,6 +250,18 @@ commit:
 }
 EXPORT_SYMBOL_GPL(usb_amd_find_chipset_info);
 
+int usb_hcd_amd_remote_wakeup_quirk(struct pci_dev *pdev)
+{
+	/* Make sure amd chipset type has already been initialized */
+	usb_amd_find_chipset_info();
+	if (amd_chipset.sb_type.gen != AMD_CHIPSET_YANGTZE)
+		return 0;
+
+	dev_dbg(&pdev->dev, "QUIRK: Enable AMD remote wakeup fix\n");
+	return 1;
+}
+EXPORT_SYMBOL_GPL(usb_hcd_amd_remote_wakeup_quirk);
+
 /*
  * The hardware normally enables the A-link power management feature, which
  * lets the system lower the power consumption in idle states.
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index 8c865134c881..fc64b6825f5e 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -141,6 +141,7 @@ struct usb_hcd {
 	unsigned		wireless:1;	/* Wireless USB HCD */
 	unsigned		authorized_default:1;
 	unsigned		has_tt:1;	/* Integrated TT in root hub */
+	unsigned		amd_resume_bug:1; /* AMD remote wakeup quirk */
 
 	unsigned int		irq;		/* irq allocated */
 	void __iomem		*regs;		/* device memory/io */
@@ -435,6 +436,8 @@ extern int usb_hcd_pci_probe(struct pci_dev *dev,
 extern void usb_hcd_pci_remove(struct pci_dev *dev);
 extern void usb_hcd_pci_shutdown(struct pci_dev *dev);
 
+extern int usb_hcd_amd_remote_wakeup_quirk(struct pci_dev *dev);
+
 #ifdef CONFIG_PM
 extern const struct dev_pm_ops usb_hcd_pci_pm_ops;
 #endif
-- 
cgit 


From 8eb4129929e9eb563fbab807a2b274d32042d034 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 23 Sep 2013 14:16:22 +0800
Subject: USB: WUSBCORE: use list_move_tail instead of list_del/list_add_tail

Using list_move_tail() instead of list_del() + list_add_tail().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/wa-xfer.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index 6ad02f57c366..cf1097963f8b 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -1552,10 +1552,8 @@ error_complete:
 
 		dev_info(dev, "Control EP stall.  Queue delayed work.\n");
 		spin_lock_irq(&wa->xfer_list_lock);
-		/* remove xfer from xfer_list. */
-		list_del(&xfer->list_node);
-		/* add xfer to xfer_errored_list. */
-		list_add_tail(&xfer->list_node, &wa->xfer_errored_list);
+		/* move xfer from xfer_list to xfer_errored_list. */
+		list_move_tail(&xfer->list_node, &wa->xfer_errored_list);
 		spin_unlock_irq(&wa->xfer_list_lock);
 		spin_unlock_irqrestore(&xfer->lock, flags);
 		queue_work(wusbd, &wa->xfer_error_work);
-- 
cgit 


From 9a37a50349c8d6a7adcee21cefae407fb2f8c623 Mon Sep 17 00:00:00 2001
From: Huang Rui <ray.huang@amd.com>
Date: Tue, 24 Sep 2013 00:03:43 +0800
Subject: usb: usbtest: bmAttributes would better be masked

When transfer type is isochronous, the other bits (bits 5..2) of
bmAttributes in endpoint descriptor might not be set zero. So it's better
to use usb_endpoint_type routine to mask bmAttributes with
USB_ENDPOINT_XFERTYPE_MASK to judge the transfter type later.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/misc/usbtest.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index aa28ac8c7607..3e91d3e98ee8 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -120,7 +120,7 @@ get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf)
 			struct usb_host_endpoint	*e;
 
 			e = alt->endpoint + ep;
-			switch (e->desc.bmAttributes) {
+			switch (usb_endpoint_type(&e->desc)) {
 			case USB_ENDPOINT_XFER_BULK:
 				break;
 			case USB_ENDPOINT_XFER_ISOC:
-- 
cgit 


From 232275a089dfd2e77377a85f11d0a4e3ca60e612 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Tue, 24 Sep 2013 15:43:39 -0400
Subject: USB: fix substandard locking for the sysfs files

This patch straightens out some locking issues in the USB sysfs
interface:

	Deauthorization will destroy existing configurations.
	Attributes that read from udev->actconfig need to lock the
	device to prevent races.  Likewise for the rawdescriptor
	values.

	Attributes that access an interface's current alternate
	setting should use ACCESS_ONCE() to obtain the cur_altsetting
	pointer, to protect against concurrent altsetting changes.

	The supports_autosuspend() attribute routine accesses values
	from an interface's driver, so it should lock the interface
	(rather than the usb_device) to protect against concurrent
	unbinds.  Once this is done, the routine can be simplified
	considerably.

Scalar values that are stored directly in the usb_device structure are
always available.  They do not require any locking.  The same is true
of the cached interface string descriptor, because it is not
deallocated until the usb_host_interface structure is destroyed.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/sysfs.c | 53 ++++++++++++++++++++++++------------------------
 1 file changed, 26 insertions(+), 27 deletions(-)

diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index 6d2c8edb1ffe..59cb5f99467a 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -23,14 +23,16 @@ static ssize_t field##_show(struct device *dev,				\
 {									\
 	struct usb_device *udev;					\
 	struct usb_host_config *actconfig;				\
+	ssize_t rc = 0;							\
 									\
 	udev = to_usb_device(dev);					\
+	usb_lock_device(udev);						\
 	actconfig = udev->actconfig;					\
 	if (actconfig)							\
-		return sprintf(buf, format_string,			\
+		rc = sprintf(buf, format_string,			\
 				actconfig->desc.field);			\
-	else								\
-		return 0;						\
+	usb_unlock_device(udev);					\
+	return rc;							\
 }									\
 
 #define usb_actconfig_attr(field, format_string)		\
@@ -45,12 +47,15 @@ static ssize_t bMaxPower_show(struct device *dev,
 {
 	struct usb_device *udev;
 	struct usb_host_config *actconfig;
+	ssize_t rc = 0;
 
 	udev = to_usb_device(dev);
+	usb_lock_device(udev);
 	actconfig = udev->actconfig;
-	if (!actconfig)
-		return 0;
-	return sprintf(buf, "%dmA\n", usb_get_max_power(udev, actconfig));
+	if (actconfig)
+		rc = sprintf(buf, "%dmA\n", usb_get_max_power(udev, actconfig));
+	usb_unlock_device(udev);
+	return rc;
 }
 static DEVICE_ATTR_RO(bMaxPower);
 
@@ -59,12 +64,15 @@ static ssize_t configuration_show(struct device *dev,
 {
 	struct usb_device *udev;
 	struct usb_host_config *actconfig;
+	ssize_t rc = 0;
 
 	udev = to_usb_device(dev);
+	usb_lock_device(udev);
 	actconfig = udev->actconfig;
-	if ((!actconfig) || (!actconfig->string))
-		return 0;
-	return sprintf(buf, "%s\n", actconfig->string);
+	if (actconfig && actconfig->string)
+		rc = sprintf(buf, "%s\n", actconfig->string);
+	usb_unlock_device(udev);
+	return rc;
 }
 static DEVICE_ATTR_RO(configuration);
 
@@ -764,6 +772,7 @@ read_descriptors(struct file *filp, struct kobject *kobj,
 	 * Following that are the raw descriptor entries for all the
 	 * configurations (config plus subsidiary descriptors).
 	 */
+	usb_lock_device(udev);
 	for (cfgno = -1; cfgno < udev->descriptor.bNumConfigurations &&
 			nleft > 0; ++cfgno) {
 		if (cfgno < 0) {
@@ -784,6 +793,7 @@ read_descriptors(struct file *filp, struct kobject *kobj,
 			off -= srclen;
 		}
 	}
+	usb_unlock_device(udev);
 	return count - nleft;
 }
 
@@ -870,9 +880,7 @@ static ssize_t interface_show(struct device *dev, struct device_attribute *attr,
 	char *string;
 
 	intf = to_usb_interface(dev);
-	string = intf->cur_altsetting->string;
-	barrier();		/* The altsetting might change! */
-
+	string = ACCESS_ONCE(intf->cur_altsetting->string);
 	if (!string)
 		return 0;
 	return sprintf(buf, "%s\n", string);
@@ -888,7 +896,7 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 
 	intf = to_usb_interface(dev);
 	udev = interface_to_usbdev(intf);
-	alt = intf->cur_altsetting;
+	alt = ACCESS_ONCE(intf->cur_altsetting);
 
 	return sprintf(buf, "usb:v%04Xp%04Xd%04Xdc%02Xdsc%02Xdp%02X"
 			"ic%02Xisc%02Xip%02Xin%02X\n",
@@ -909,23 +917,14 @@ static ssize_t supports_autosuspend_show(struct device *dev,
 					 struct device_attribute *attr,
 					 char *buf)
 {
-	struct usb_interface *intf;
-	struct usb_device *udev;
-	int ret;
+	int s;
 
-	intf = to_usb_interface(dev);
-	udev = interface_to_usbdev(intf);
-
-	usb_lock_device(udev);
+	device_lock(dev);
 	/* Devices will be autosuspended even when an interface isn't claimed */
-	if (!intf->dev.driver ||
-			to_usb_driver(intf->dev.driver)->supports_autosuspend)
-		ret = sprintf(buf, "%u\n", 1);
-	else
-		ret = sprintf(buf, "%u\n", 0);
-	usb_unlock_device(udev);
+	s = (!dev->driver || to_usb_driver(dev->driver)->supports_autosuspend);
+	device_unlock(dev);
 
-	return ret;
+	return sprintf(buf, "%u\n", s);
 }
 static DEVICE_ATTR_RO(supports_autosuspend);
 
-- 
cgit 


From 1cb40d08726468602389c9a7ec345af5ade99775 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Tue, 17 Sep 2013 12:53:34 -0400
Subject: n_tty: Remove superfluous reader wakeup

n_tty's .set_termios method unconditionally performs reader wakeup;
remove extra reader wakeup for canonical mode changes.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/n_tty.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index c9a9ddd1d0bc..41c0c80094a5 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1764,9 +1764,6 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
 		ldata->lnext = 0;
 	}
 
-	if (canon_change && !L_ICANON(tty) && read_cnt(ldata))
-		wake_up_interruptible(&tty->read_wait);
-
 	ldata->icanon = (L_ICANON(tty) != 0);
 
 	if (I_ISTRIP(tty) || I_IUCLC(tty) || I_IGNCR(tty) ||
-- 
cgit 


From c786f74e0bcc457e85cc1eee551732afa60d6308 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Tue, 17 Sep 2013 12:53:35 -0400
Subject: n_tty: Remove unnecessary local variable

Flatten conditional evaluation in n_tty_set_termios; remove
canon_change.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/n_tty.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 41c0c80094a5..5372bf0e74ab 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1752,11 +1752,8 @@ int is_ignored(int sig)
 static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
 {
 	struct n_tty_data *ldata = tty->disc_data;
-	int canon_change = 1;
 
-	if (old)
-		canon_change = (old->c_lflag ^ tty->termios.c_lflag) & ICANON;
-	if (canon_change) {
+	if (!old || (old->c_lflag ^ tty->termios.c_lflag) & ICANON) {
 		bitmap_zero(ldata->read_flags, N_TTY_BUF_SIZE);
 		ldata->line_start = 0;
 		ldata->canon_head = ldata->read_tail;
-- 
cgit 


From 103fcbe2eeb56d6ee693c573eac81e398fa276bd Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Tue, 17 Sep 2013 12:53:36 -0400
Subject: n_tty: Style fix in n_tty_set_termios

Remove braces from single-statement conditional in
n_tty_set_termios.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/n_tty.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 5372bf0e74ab..2ba7bf86d096 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1815,9 +1815,8 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
 	 * Fix tty hang when I_IXON(tty) is cleared, but the tty
 	 * been stopped by STOP_CHAR(tty) before it.
 	 */
-	if (!I_IXON(tty) && old && (old->c_iflag & IXON) && !tty->flow_stopped) {
+	if (!I_IXON(tty) && old && (old->c_iflag & IXON) && !tty->flow_stopped)
 		start_tty(tty);
-	}
 
 	/* The termios change make the tty ready for I/O */
 	wake_up_interruptible(&tty->write_wait);
-- 
cgit 


From e3bfea23a62dccfd12875a6cc24fa5c77e8a3c07 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 18 Sep 2013 20:42:39 -0400
Subject: tty: Prevent tty_port destruction if tty not released

If the tty driver mistakenly drops the last port reference
before the tty has been released, issue a diagnostic and
abort the port destruction.

This will leak memory and may zombify the port, but might
otherwise keep the machine in runnable state.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/tty_port.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
index f597e88a705d..7efbca474689 100644
--- a/drivers/tty/tty_port.c
+++ b/drivers/tty/tty_port.c
@@ -140,6 +140,10 @@ EXPORT_SYMBOL(tty_port_destroy);
 static void tty_port_destructor(struct kref *kref)
 {
 	struct tty_port *port = container_of(kref, struct tty_port, kref);
+
+	/* check if last port ref was dropped before tty release */
+	if (WARN_ON(port->itty))
+		return;
 	if (port->xmit_buf)
 		free_page((unsigned long)port->xmit_buf);
 	tty_port_destroy(port);
-- 
cgit 


From 469d6d0631386e6865a30c9ded87a5cc0fdf8e2e Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Wed, 18 Sep 2013 20:47:06 -0400
Subject: tty: Remove unused drop() method from tty_port interface

Although originally conceived as a hook for port drivers to know
when a port reference is dropped, no driver uses this method.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/tty_port.c | 6 +-----
 include/linux/tty.h    | 1 -
 2 files changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
index 7efbca474689..c94d2349dd06 100644
--- a/drivers/tty/tty_port.c
+++ b/drivers/tty/tty_port.c
@@ -484,8 +484,6 @@ int tty_port_close_start(struct tty_port *port,
 
 	if (port->count) {
 		spin_unlock_irqrestore(&port->lock, flags);
-		if (port->ops->drop)
-			port->ops->drop(port);
 		return 0;
 	}
 	set_bit(ASYNCB_CLOSING, &port->flags);
@@ -504,9 +502,7 @@ int tty_port_close_start(struct tty_port *port,
 	/* Flush the ldisc buffering */
 	tty_ldisc_flush(tty);
 
-	/* Don't call port->drop for the last reference. Callers will want
-	   to drop the last active reference in ->shutdown() or the tty
-	   shutdown path */
+	/* Report to caller this is the last port reference */
 	return 1;
 }
 EXPORT_SYMBOL(tty_port_close_start);
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 64f864651d86..2f47989d8288 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -180,7 +180,6 @@ struct tty_port_operations {
 	   IFF the port was initialized. Do not use to free resources. Called
 	   under the port mutex to serialize against activate/shutdowns */
 	void (*shutdown)(struct tty_port *port);
-	void (*drop)(struct tty_port *port);
 	/* Called under the port mutex from tty_port_open, serialized using
 	   the port mutex */
         /* FIXME: long term getting the tty argument *out* of this would be
-- 
cgit 


From f377775dc083506e2fd7739d8615971c46b5246e Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Tue, 24 Sep 2013 21:05:58 -0500
Subject: TTY: hvc_dcc: probe for a JTAG connection before registering

Enabling the ARM DCC console and using without a JTAG connection will
simply hang the system. Since distros like to turn on all options, this
is a reoccurring problem to debug. We can do better by checking if
anything is attached and handling characters. There is no way to probe
this, so send a newline and check that it is handled.

Cc: Paolo Pisati <paolo.pisati@canonical.com>
Cc: Tim Gardner <tim.gardner@canonical.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/hvc/hvc_dcc.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/tty/hvc/hvc_dcc.c b/drivers/tty/hvc/hvc_dcc.c
index 44fbebab5075..3502a7bbb69e 100644
--- a/drivers/tty/hvc/hvc_dcc.c
+++ b/drivers/tty/hvc/hvc_dcc.c
@@ -86,6 +86,21 @@ static int hvc_dcc_get_chars(uint32_t vt, char *buf, int count)
 	return i;
 }
 
+static bool hvc_dcc_check(void)
+{
+	unsigned long time = jiffies + (HZ / 10);
+
+	/* Write a test character to check if it is handled */
+	__dcc_putchar('\n');
+
+	while (time_is_after_jiffies(time)) {
+		if (!(__dcc_getstatus() & DCC_STATUS_TX))
+			return true;
+	}
+
+	return false;
+}
+
 static const struct hv_ops hvc_dcc_get_put_ops = {
 	.get_chars = hvc_dcc_get_chars,
 	.put_chars = hvc_dcc_put_chars,
@@ -93,6 +108,9 @@ static const struct hv_ops hvc_dcc_get_put_ops = {
 
 static int __init hvc_dcc_console_init(void)
 {
+	if (!hvc_dcc_check())
+		return -ENODEV;
+
 	hvc_instantiate(0, 0, &hvc_dcc_get_put_ops);
 	return 0;
 }
@@ -100,6 +118,9 @@ console_initcall(hvc_dcc_console_init);
 
 static int __init hvc_dcc_init(void)
 {
+	if (!hvc_dcc_check())
+		return -ENODEV;
+
 	hvc_alloc(0, 0, &hvc_dcc_get_put_ops, 128);
 	return 0;
 }
-- 
cgit 


From ffc79664d15841025d90afdd902c4112ffe168d6 Mon Sep 17 00:00:00 2001
From: Milosz Tanski <milosz@adfin.com>
Date: Wed, 25 Sep 2013 11:18:14 -0400
Subject: ceph: hung on ceph fscache invalidate in some cases

In some cases I'm on my ceph client cluster I'm seeing hunk kernel tasks in
the invalidate page code path. This is due to the fact that we don't check if
the page is marked as cache before calling fscache_wait_on_page_write().

This is the log from the hang

INFO: task XXXXXX:12034 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
 ...
Call Trace:
[<ffffffff81568d09>] schedule+0x29/0x70
[<ffffffffa01d4cbd>] __fscache_wait_on_page_write+0x6d/0xb0 [fscache]
[<ffffffff81083520>] ? add_wait_queue+0x60/0x60
[<ffffffffa029a3e9>] ceph_invalidate_fscache_page+0x29/0x50 [ceph]
[<ffffffffa027df00>] ceph_invalidatepage+0x70/0x190 [ceph]
[<ffffffff8112656f>] ? delete_from_page_cache+0x5f/0x70
[<ffffffff81133cab>] truncate_inode_page+0x8b/0x90
[<ffffffff81133ded>] truncate_inode_pages_range.part.12+0x13d/0x620
[<ffffffff8113431d>] truncate_inode_pages_range+0x4d/0x60
[<ffffffff811343b5>] truncate_inode_pages+0x15/0x20
[<ffffffff8119bbf6>] evict+0x1a6/0x1b0
[<ffffffff8119c3f3>] iput+0x103/0x190
 ...

Signed-off-by: Milosz Tanski <milosz@adfin.com>
Reviewed-by: Sage Weil <sage@inktank.com>
---
 fs/ceph/cache.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/ceph/cache.c b/fs/ceph/cache.c
index 6bfe65e0b038..360b622b0be0 100644
--- a/fs/ceph/cache.c
+++ b/fs/ceph/cache.c
@@ -324,6 +324,9 @@ void ceph_invalidate_fscache_page(struct inode* inode, struct page *page)
 {
 	struct ceph_inode_info *ci = ceph_inode(inode);
 
+	if (!PageFsCache(page))
+		return;
+
 	fscache_wait_on_page_write(ci->fscache, page);
 	fscache_uncache_page(ci->fscache, page);
 }
-- 
cgit 


From fd131d0d4024a39259c41290451e728515ed7300 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 23 Sep 2013 23:04:10 -0700
Subject: ARM: shmobile: r8a7778: cleanup registration of vin

vin driver which needs platform data at the time of
registration is used from BockW only.
Now, ARM/shmobile aims to support DT,
and the C code base board support will be removed
if DT support is completed.
Current driver registration method which needs platform data
and which is not shared complicates codes.
This means legacy C code cleanup after DT supporting
will be more complicated
This patch registers it on board code as cleanup C code

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-bockw.c          | 32 ++++++++++++++++++++-----
 arch/arm/mach-shmobile/include/mach/r8a7778.h |  2 --
 arch/arm/mach-shmobile/setup-r8a7778.c        | 34 ---------------------------
 3 files changed, 26 insertions(+), 42 deletions(-)

diff --git a/arch/arm/mach-shmobile/board-bockw.c b/arch/arm/mach-shmobile/board-bockw.c
index 6b9faf3908f7..4b696ce0bae6 100644
--- a/arch/arm/mach-shmobile/board-bockw.c
+++ b/arch/arm/mach-shmobile/board-bockw.c
@@ -162,10 +162,6 @@ static struct sh_mmcif_plat_data sh_mmcif_plat __initdata = {
 			  MMC_CAP_NEEDS_POLL,
 };
 
-static struct rcar_vin_platform_data vin_platform_data __initdata = {
-	.flags	= RCAR_VIN_BT656,
-};
-
 /* In the default configuration both decoders reside on I2C bus 0 */
 #define BOCKW_CAMERA(idx)						\
 static struct i2c_board_info camera##idx##_info = {			\
@@ -181,6 +177,30 @@ static struct soc_camera_link iclink##idx##_ml86v7667 __initdata = {	\
 BOCKW_CAMERA(0);
 BOCKW_CAMERA(1);
 
+/* VIN */
+static struct rcar_vin_platform_data vin_platform_data __initdata = {
+	.flags	= RCAR_VIN_BT656,
+};
+
+#define R8A7778_VIN(idx)						\
+static struct resource vin##idx##_resources[] __initdata = {		\
+	DEFINE_RES_MEM(0xffc50000 + 0x1000 * (idx), 0x1000),		\
+	DEFINE_RES_IRQ(gic_iid(0x5a)),					\
+};									\
+									\
+static struct platform_device_info vin##idx##_info __initdata = {	\
+	.parent		= &platform_bus,				\
+	.name		= "r8a7778-vin",				\
+	.id		= idx,						\
+	.res		= vin##idx##_resources,				\
+	.num_res	= ARRAY_SIZE(vin##idx##_resources),		\
+	.dma_mask	= DMA_BIT_MASK(32),				\
+	.data		= &vin_platform_data,				\
+	.size_data	= sizeof(vin_platform_data),			\
+}
+R8A7778_VIN(0);
+R8A7778_VIN(1);
+
 static const struct pinctrl_map bockw_pinctrl_map[] = {
 	/* Ether */
 	PIN_MAP_MUX_GROUP_DEFAULT("r8a777x-ether", "pfc-r8a7778",
@@ -236,10 +256,10 @@ static void __init bockw_init(void)
 	r8a7778_init_irq_extpin(1);
 	r8a7778_add_standard_devices();
 	r8a7778_add_ether_device(&ether_platform_data);
-	r8a7778_add_vin_device(0, &vin_platform_data);
+	platform_device_register_full(&vin0_info);
 	/* VIN1 has a pin conflict with Ether */
 	if (!IS_ENABLED(CONFIG_SH_ETH))
-		r8a7778_add_vin_device(1, &vin_platform_data);
+		platform_device_register_full(&vin1_info);
 	platform_device_register_data(&platform_bus, "soc-camera-pdrv", 0,
 				      &iclink0_ml86v7667,
 				      sizeof(iclink0_ml86v7667));
diff --git a/arch/arm/mach-shmobile/include/mach/r8a7778.h b/arch/arm/mach-shmobile/include/mach/r8a7778.h
index adfcf51b163d..9838608363c2 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7778.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7778.h
@@ -24,8 +24,6 @@
 extern void r8a7778_add_standard_devices(void);
 extern void r8a7778_add_standard_devices_dt(void);
 extern void r8a7778_add_ether_device(struct sh_eth_plat_data *pdata);
-extern void r8a7778_add_vin_device(int id,
-				   struct rcar_vin_platform_data *pdata);
 extern void r8a7778_add_dt_devices(void);
 
 extern void r8a7778_init_late(void);
diff --git a/arch/arm/mach-shmobile/setup-r8a7778.c b/arch/arm/mach-shmobile/setup-r8a7778.c
index 6a2657ebd197..604cf36b5616 100644
--- a/arch/arm/mach-shmobile/setup-r8a7778.c
+++ b/arch/arm/mach-shmobile/setup-r8a7778.c
@@ -281,40 +281,6 @@ void __init r8a7778_register_hspi(int id)
 		hspi_resources + (2 * id), 2);
 }
 
-/* VIN */
-#define R8A7778_VIN(idx)						\
-static struct resource vin##idx##_resources[] __initdata = {		\
-	DEFINE_RES_MEM(0xffc50000 + 0x1000 * (idx), 0x1000),		\
-	DEFINE_RES_IRQ(gic_iid(0x5a)),					\
-};									\
-									\
-static struct platform_device_info vin##idx##_info __initdata = {	\
-	.parent		= &platform_bus,				\
-	.name		= "r8a7778-vin",				\
-	.id		= idx,						\
-	.res		= vin##idx##_resources,				\
-	.num_res	= ARRAY_SIZE(vin##idx##_resources),		\
-	.dma_mask	= DMA_BIT_MASK(32),				\
-}
-
-R8A7778_VIN(0);
-R8A7778_VIN(1);
-
-static struct platform_device_info *vin_info_table[] __initdata = {
-	&vin0_info,
-	&vin1_info,
-};
-
-void __init r8a7778_add_vin_device(int id, struct rcar_vin_platform_data *pdata)
-{
-	BUG_ON(id < 0 || id > 1);
-
-	vin_info_table[id]->data = pdata;
-	vin_info_table[id]->size_data = sizeof(*pdata);
-
-	platform_device_register_full(vin_info_table[id]);
-}
-
 void __init r8a7778_add_dt_devices(void)
 {
 	int i;
-- 
cgit 


From cd4ab0420fd6233766fd87fa295d6e3cfb719c01 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 23 Sep 2013 23:04:21 -0700
Subject: ARM: shmobile: r8a7778: cleanup registration of sh_eth

sh_eth driver which needs platform data at the time of
registration is used from BockW only.
Now, ARM/shmobile aims to support DT,
and the C code base board support will be removed
if DT support is completed.
Current driver registration method which needs platform data
and which is not shared complicates codes.
This means legacy C code cleanup after DT supporting
will be more complicated
This patch registers it on board code as cleanup C code

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-bockw.c          | 14 +++++++++++++-
 arch/arm/mach-shmobile/include/mach/r8a7778.h |  1 -
 arch/arm/mach-shmobile/setup-r8a7778.c        | 14 --------------
 3 files changed, 13 insertions(+), 16 deletions(-)

diff --git a/arch/arm/mach-shmobile/board-bockw.c b/arch/arm/mach-shmobile/board-bockw.c
index 4b696ce0bae6..f2bf61bf2521 100644
--- a/arch/arm/mach-shmobile/board-bockw.c
+++ b/arch/arm/mach-shmobile/board-bockw.c
@@ -101,6 +101,12 @@ static struct resource sdhi0_resources[] __initdata = {
 	DEFINE_RES_IRQ(gic_iid(0x77)),
 };
 
+/* Ether */
+static struct resource ether_resources[] __initdata = {
+	DEFINE_RES_MEM(0xfde00000, 0x400),
+	DEFINE_RES_IRQ(gic_iid(0x89)),
+};
+
 static struct sh_eth_plat_data ether_platform_data __initdata = {
 	.phy		= 0x01,
 	.edmac_endian	= EDMAC_LITTLE_ENDIAN,
@@ -255,7 +261,13 @@ static void __init bockw_init(void)
 	r8a7778_clock_init();
 	r8a7778_init_irq_extpin(1);
 	r8a7778_add_standard_devices();
-	r8a7778_add_ether_device(&ether_platform_data);
+
+	platform_device_register_resndata(&platform_bus, "r8a777x-ether", -1,
+					  ether_resources,
+					  ARRAY_SIZE(ether_resources),
+					  &ether_platform_data,
+					  sizeof(ether_platform_data));
+
 	platform_device_register_full(&vin0_info);
 	/* VIN1 has a pin conflict with Ether */
 	if (!IS_ENABLED(CONFIG_SH_ETH))
diff --git a/arch/arm/mach-shmobile/include/mach/r8a7778.h b/arch/arm/mach-shmobile/include/mach/r8a7778.h
index 9838608363c2..48933def0d55 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7778.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7778.h
@@ -23,7 +23,6 @@
 
 extern void r8a7778_add_standard_devices(void);
 extern void r8a7778_add_standard_devices_dt(void);
-extern void r8a7778_add_ether_device(struct sh_eth_plat_data *pdata);
 extern void r8a7778_add_dt_devices(void);
 
 extern void r8a7778_init_late(void);
diff --git a/arch/arm/mach-shmobile/setup-r8a7778.c b/arch/arm/mach-shmobile/setup-r8a7778.c
index 604cf36b5616..f5e15c926fef 100644
--- a/arch/arm/mach-shmobile/setup-r8a7778.c
+++ b/arch/arm/mach-shmobile/setup-r8a7778.c
@@ -174,20 +174,6 @@ static struct platform_device_info hci##_info __initdata = {	\
 USB_PLATFORM_INFO(ehci);
 USB_PLATFORM_INFO(ohci);
 
-/* Ether */
-static struct resource ether_resources[] __initdata = {
-	DEFINE_RES_MEM(0xfde00000, 0x400),
-	DEFINE_RES_IRQ(gic_iid(0x89)),
-};
-
-void __init r8a7778_add_ether_device(struct sh_eth_plat_data *pdata)
-{
-	platform_device_register_resndata(&platform_bus, "r8a777x-ether", -1,
-					  ether_resources,
-					  ARRAY_SIZE(ether_resources),
-					  pdata, sizeof(*pdata));
-}
-
 /* PFC/GPIO */
 static struct resource pfc_resources[] __initdata = {
 	DEFINE_RES_MEM(0xfffc0000, 0x118),
-- 
cgit 


From 117378e58365a44b568655e5aa49b3f6daf900c4 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 23 Sep 2013 23:04:37 -0700
Subject: ARM: shmobile: r8a7778: r8a7778_register_hspi() become static

r8a7778_register_hspi() used only from setup-r8a7778.c
it can be static

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/setup-r8a7778.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/setup-r8a7778.c b/arch/arm/mach-shmobile/setup-r8a7778.c
index f5e15c926fef..468ee6551184 100644
--- a/arch/arm/mach-shmobile/setup-r8a7778.c
+++ b/arch/arm/mach-shmobile/setup-r8a7778.c
@@ -258,7 +258,7 @@ static struct resource hspi_resources[] __initdata = {
 	DEFINE_RES_IRQ(gic_iid(0x75)),
 };
 
-void __init r8a7778_register_hspi(int id)
+static void __init r8a7778_register_hspi(int id)
 {
 	BUG_ON(id < 0 || id > 2);
 
-- 
cgit 


From b83e867026caedd6d67fccfbe6e9a621edd79b21 Mon Sep 17 00:00:00 2001
From: Grant Grundler <grundler@chromium.org>
Date: Thu, 19 Sep 2013 18:21:36 -0700
Subject: mmc: core: remove dead function mmc_try_claim_host

cscope says there are no callers for mmc_try_claim_host in the kernel.
No reason to keep it.

Signed-off-by: Grant Grundler <grundler@chromium.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/core/core.c  | 25 -------------------------
 include/linux/mmc/core.h |  1 -
 2 files changed, 26 deletions(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index bf18b6bfce48..006ead2fb701 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -917,31 +917,6 @@ int __mmc_claim_host(struct mmc_host *host, atomic_t *abort)
 
 EXPORT_SYMBOL(__mmc_claim_host);
 
-/**
- *	mmc_try_claim_host - try exclusively to claim a host
- *	@host: mmc host to claim
- *
- *	Returns %1 if the host is claimed, %0 otherwise.
- */
-int mmc_try_claim_host(struct mmc_host *host)
-{
-	int claimed_host = 0;
-	unsigned long flags;
-
-	spin_lock_irqsave(&host->lock, flags);
-	if (!host->claimed || host->claimer == current) {
-		host->claimed = 1;
-		host->claimer = current;
-		host->claim_cnt += 1;
-		claimed_host = 1;
-	}
-	spin_unlock_irqrestore(&host->lock, flags);
-	if (host->ops->enable && claimed_host && host->claim_cnt == 1)
-		host->ops->enable(host);
-	return claimed_host;
-}
-EXPORT_SYMBOL(mmc_try_claim_host);
-
 /**
  *	mmc_release_host - release a host
  *	@host: mmc host to release
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index da51bec578c3..a00fc49c8434 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -188,7 +188,6 @@ extern unsigned int mmc_align_data_size(struct mmc_card *, unsigned int);
 
 extern int __mmc_claim_host(struct mmc_host *host, atomic_t *abort);
 extern void mmc_release_host(struct mmc_host *host);
-extern int mmc_try_claim_host(struct mmc_host *host);
 
 extern void mmc_get_card(struct mmc_card *card);
 extern void mmc_put_card(struct mmc_card *card);
-- 
cgit 


From 357002b9c09e5332c9fcd4fa3d3c0fa00ca6ae4f Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Tue, 24 Sep 2013 18:55:22 -0700
Subject: sh: ecovec: fixup compile error on sdhi

afa2c9407f8908 ("sh: ecovec24: Use MMC/SDHI CD and RO GPIO") added
.tmio_flags = TMIO_MMC_USE_GPIO_CD on sh_mobile_sdhi_info, but it needs
<linux/mfd/tmio.h> header.  This patch adds it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Yusuke Goda <yusuke.goda.sx@renesas.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 arch/sh/boards/mach-ecovec24/setup.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/sh/boards/mach-ecovec24/setup.c b/arch/sh/boards/mach-ecovec24/setup.c
index 1fa8be409771..122f737a901f 100644
--- a/arch/sh/boards/mach-ecovec24/setup.c
+++ b/arch/sh/boards/mach-ecovec24/setup.c
@@ -15,6 +15,7 @@
 #include <linux/mmc/sh_mmcif.h>
 #include <linux/mmc/sh_mobile_sdhi.h>
 #include <linux/mtd/physmap.h>
+#include <linux/mfd/tmio.h>
 #include <linux/gpio.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
-- 
cgit 


From 369ac8614fcef040f96f6548acb43dcefebd21b9 Mon Sep 17 00:00:00 2001
From: Doug Anderson <dianders@chromium.org>
Date: Sat, 31 Aug 2013 00:11:06 +0900
Subject: mmc: dw_mmc: don't queue up a card detect at slot startup

The MMC subsystem handles looking for a card at probe time. Queuing up our
own can race with the rest of the MMC subsystem and cause problems if we
get unlucky with timing. Just remove driver own detection triggering.  While
progressing the request from 'mmc_rescan', if 'dw_mci_work_routine_card'
routine is activated, it will cancel the current request. The problem case
is that 'mmc_rescan' is prior to 'dw_mci_work_routine_card' from host own.
Specifically, the following message shows the detection problem in driver's
probing. It would get an err -123 (-ENOMEDIUM) during probe.

[    4.216595] dwmmc_exynos 12210000.dwmmc1: Using internal DMA controller.
[    4.395935] dwmmc_exynos 12210000.dwmmc1: Version ID is 250a
[    4.401948] dwmmc_exynos 12210000.dwmmc1: DW MMC controller at irq 108, 64 bit host data width, 64 deep fifo
[    4.424430] dwmmc_exynos 12210000.dwmmc1: sdr0 mode (irq=108, width=0)
[    4.453975] dwmmc_exynos 12210000.dwmmc1: sdr0 mode (irq=108, width=0)
[    4.459592] mmc_host mmc1: Bus speed (slot 0) = 100000000Hz (slot req 400000Hz, actual 400000HZ div = 125)
[    4.484258] dwmmc_exynos 12210000.dwmmc1: 1 slots initialized
[    4.485406] dwmmc_exynos 12210000.dwmmc1: sdr0 mode (irq=108, width=0)
[    4.487606] dwmmc_exynos 12210000.dwmmc1: sdr0 mode (irq=108, width=0)
[    4.489794] dwmmc_exynos 12210000.dwmmc1: sdr0 mode (irq=108, width=0)
[    4.509757] mmc1: error -123 whilst initialising SDIO card

Signed-off-by: Doug Anderson <dianders@chromium.org>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 018f365e5ae4..7192f89b15ae 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -2008,12 +2008,6 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
 	/* Card initially undetected */
 	slot->last_detect_state = 0;
 
-	/*
-	 * Card may have been plugged in prior to boot so we
-	 * need to run the detect tasklet
-	 */
-	queue_work(host->card_workqueue, &host->card_work);
-
 	return 0;
 
 err_setup_bus:
-- 
cgit 


From e2c635999f44324d0c9db3330debd807be809507 Mon Sep 17 00:00:00 2001
From: Doug Anderson <dianders@chromium.org>
Date: Sat, 31 Aug 2013 00:11:21 +0900
Subject: mmc: dw_mmc: Add exynos resume_noirq callback to clear WAKEUP_INT

If the WAKEUP_INT is asserted at wakeup and not cleared, we'll end up
looping around forever.  This has been seen to happen on exynos5420
silicon despite the fact that we haven't enabled any wakeup events due
to a silicon errata.  It is safe to do on all exynos variants.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc-exynos.c | 53 +++++++++++++++++++++++++++++++++++++++-
 1 file changed, 52 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index 6a1fa2110a05..2f28dd8098f9 100644
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -30,6 +30,7 @@
 #define SDMMC_CLKSEL_TIMING(x, y, z)	(SDMMC_CLKSEL_CCLK_SAMPLE(x) |	\
 					SDMMC_CLKSEL_CCLK_DRIVE(y) |	\
 					SDMMC_CLKSEL_CCLK_DIVIDER(z))
+#define SDMMC_CLKSEL_WAKEUP_INT		BIT(11)
 
 #define EXYNOS4210_FIXED_CIU_CLK_DIV	2
 #define EXYNOS4412_FIXED_CIU_CLK_DIV	4
@@ -105,6 +106,49 @@ static int dw_mci_exynos_setup_clock(struct dw_mci *host)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int dw_mci_exynos_suspend(struct device *dev)
+{
+	struct dw_mci *host = dev_get_drvdata(dev);
+
+	return dw_mci_suspend(host);
+}
+
+static int dw_mci_exynos_resume(struct device *dev)
+{
+	struct dw_mci *host = dev_get_drvdata(dev);
+
+	return dw_mci_resume(host);
+}
+
+/**
+ * dw_mci_exynos_resume_noirq - Exynos-specific resume code
+ *
+ * On exynos5420 there is a silicon errata that will sometimes leave the
+ * WAKEUP_INT bit in the CLKSEL register asserted.  This bit is 1 to indicate
+ * that it fired and we can clear it by writing a 1 back.  Clear it to prevent
+ * interrupts from going off constantly.
+ *
+ * We run this code on all exynos variants because it doesn't hurt.
+ */
+
+static int dw_mci_exynos_resume_noirq(struct device *dev)
+{
+	struct dw_mci *host = dev_get_drvdata(dev);
+	u32 clksel;
+
+	clksel = mci_readl(host, CLKSEL);
+	if (clksel & SDMMC_CLKSEL_WAKEUP_INT)
+		mci_writel(host, CLKSEL, clksel);
+
+	return 0;
+}
+#else
+#define dw_mci_exynos_suspend		NULL
+#define dw_mci_exynos_resume		NULL
+#define dw_mci_exynos_resume_noirq	NULL
+#endif /* CONFIG_PM_SLEEP */
+
 static void dw_mci_exynos_prepare_command(struct dw_mci *host, u32 *cmdr)
 {
 	/*
@@ -194,13 +238,20 @@ static int dw_mci_exynos_probe(struct platform_device *pdev)
 	return dw_mci_pltfm_register(pdev, drv_data);
 }
 
+const struct dev_pm_ops dw_mci_exynos_pmops = {
+	SET_SYSTEM_SLEEP_PM_OPS(dw_mci_exynos_suspend, dw_mci_exynos_resume)
+	.resume_noirq = dw_mci_exynos_resume_noirq,
+	.thaw_noirq = dw_mci_exynos_resume_noirq,
+	.restore_noirq = dw_mci_exynos_resume_noirq,
+};
+
 static struct platform_driver dw_mci_exynos_pltfm_driver = {
 	.probe		= dw_mci_exynos_probe,
 	.remove		= __exit_p(dw_mci_pltfm_remove),
 	.driver		= {
 		.name		= "dwmmc_exynos",
 		.of_match_table	= dw_mci_exynos_match,
-		.pm		= &dw_mci_pltfm_pmops,
+		.pm		= &dw_mci_exynos_pmops,
 	},
 };
 
-- 
cgit 


From fdf492a1cc6db8c13f650948f43855a077600895 Mon Sep 17 00:00:00 2001
From: Doug Anderson <dianders@chromium.org>
Date: Sat, 31 Aug 2013 00:11:43 +0900
Subject: mmc: dw_mmc: Honor requests to set the clock to 0

Previously the dw_mmc driver would ignore any requests to disable the
card's clock.  This doesn't seem like a good thing in general, but had
one extra bad side effect in the following situation:
* mmc core would set clk to 400kHz at boot time while scanning
* mmc core would set clk to 0 since no card, but it would be ignored.
* suspend to ram and resume; clocks in the dw_mmc IP block are now 0
  but dw_mmc thinks that they're 400kHz (it ignored the set to 0).
* insert card
* mmc core would set clk to 400kHz which would be considered a no-op.

Note that if there is no card in the slot and we do a suspend/resume
cycle, we _do_ still end up with differences in a dw_mmc register
dump, but the differences are clock related and we've got the clock
disabled both before and after, so this should be OK.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc.c | 44 ++++++++++++++++++++++++++++----------------
 1 file changed, 28 insertions(+), 16 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 7192f89b15ae..bc3a430ba027 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -88,6 +88,9 @@ struct idmac_desc {
  * @queue_node: List node for placing this node in the @queue list of
  *	&struct dw_mci.
  * @clock: Clock rate configured by set_ios(). Protected by host->lock.
+ * @__clk_old: The last updated clock with reflecting clock divider.
+ *	Keeping track of this helps us to avoid spamming the console
+ *	with CONFIG_MMC_CLKGATE.
  * @flags: Random state bits associated with the slot.
  * @id: Number of this slot.
  * @last_detect_state: Most recently observed card detect state.
@@ -105,6 +108,7 @@ struct dw_mci_slot {
 	struct list_head	queue_node;
 
 	unsigned int		clock;
+	unsigned int		__clk_old;
 	unsigned long		flags;
 #define DW_MMC_CARD_PRESENT	0
 #define DW_MMC_CARD_NEED_INIT	1
@@ -632,24 +636,31 @@ static void mci_send_cmd(struct dw_mci_slot *slot, u32 cmd, u32 arg)
 static void dw_mci_setup_bus(struct dw_mci_slot *slot, bool force_clkinit)
 {
 	struct dw_mci *host = slot->host;
+	unsigned int clock = slot->clock;
 	u32 div;
 	u32 clk_en_a;
 
-	if (slot->clock != host->current_speed || force_clkinit) {
-		div = host->bus_hz / slot->clock;
-		if (host->bus_hz % slot->clock && host->bus_hz > slot->clock)
+	if (!clock) {
+		mci_writel(host, CLKENA, 0);
+		mci_send_cmd(slot,
+			     SDMMC_CMD_UPD_CLK | SDMMC_CMD_PRV_DAT_WAIT, 0);
+	} else if (clock != host->current_speed || force_clkinit) {
+		div = host->bus_hz / clock;
+		if (host->bus_hz % clock && host->bus_hz > clock)
 			/*
 			 * move the + 1 after the divide to prevent
 			 * over-clocking the card.
 			 */
 			div += 1;
 
-		div = (host->bus_hz != slot->clock) ? DIV_ROUND_UP(div, 2) : 0;
+		div = (host->bus_hz != clock) ? DIV_ROUND_UP(div, 2) : 0;
 
-		dev_info(&slot->mmc->class_dev,
-			 "Bus speed (slot %d) = %dHz (slot req %dHz, actual %dHZ"
-			 " div = %d)\n", slot->id, host->bus_hz, slot->clock,
-			 div ? ((host->bus_hz / div) >> 1) : host->bus_hz, div);
+		if ((clock << div) != slot->__clk_old || force_clkinit)
+			dev_info(&slot->mmc->class_dev,
+				 "Bus speed (slot %d) = %dHz (slot req %dHz, actual %dHZ div = %d)\n",
+				 slot->id, host->bus_hz, clock,
+				 div ? ((host->bus_hz / div) >> 1) :
+				 host->bus_hz, div);
 
 		/* disable clock */
 		mci_writel(host, CLKENA, 0);
@@ -676,9 +687,12 @@ static void dw_mci_setup_bus(struct dw_mci_slot *slot, bool force_clkinit)
 		mci_send_cmd(slot,
 			     SDMMC_CMD_UPD_CLK | SDMMC_CMD_PRV_DAT_WAIT, 0);
 
-		host->current_speed = slot->clock;
+		/* keep the clock with reflecting clock dividor */
+		slot->__clk_old = clock << div;
 	}
 
+	host->current_speed = clock;
+
 	/* Set the current slot bus width */
 	mci_writel(host, CTYPE, (slot->ctype << slot->id));
 }
@@ -807,13 +821,11 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 
 	mci_writel(slot->host, UHS_REG, regs);
 
-	if (ios->clock) {
-		/*
-		 * Use mirror of ios->clock to prevent race with mmc
-		 * core ios update when finding the minimum.
-		 */
-		slot->clock = ios->clock;
-	}
+	/*
+	 * Use mirror of ios->clock to prevent race with mmc
+	 * core ios update when finding the minimum.
+	 */
+	slot->clock = ios->clock;
 
 	if (drv_data && drv_data->set_ios)
 		drv_data->set_ios(slot->host, ios);
-- 
cgit 


From 2eb2944fa7d14703898063eaee34d41524fb46ad Mon Sep 17 00:00:00 2001
From: Doug Anderson <dianders@chromium.org>
Date: Sat, 31 Aug 2013 00:11:49 +0900
Subject: mmc: dw_mmc: Set timeout to max upon resume

The TMOUT register is set to 0xffffffff at probe time but isn't
set after suspend/resume.  Add an init of this value.

No problems were observed without this (it will also be set in
__dw_mci_start_request if there is data to send), but it makes the
register dump before and after suspend cleaner.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index bc3a430ba027..19b289d5dba8 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -2510,6 +2510,9 @@ int dw_mci_resume(struct dw_mci *host)
 	/* Restore the old value at FIFOTH register */
 	mci_writel(host, FIFOTH, host->fifoth_val);
 
+	/* Put in max timeout */
+	mci_writel(host, TMOUT, 0xFFFFFFFF);
+
 	mci_writel(host, RINTSTS, 0xFFFFFFFF);
 	mci_writel(host, INTMASK, SDMMC_INT_CMD_DONE | SDMMC_INT_DATA_OVER |
 		   SDMMC_INT_TXDR | SDMMC_INT_RXDR |
-- 
cgit 


From e6c784eded7b39caeaf2e9206336fa1daeccfd09 Mon Sep 17 00:00:00 2001
From: Yuvaraj Kumar C D <yuvaraj.cd@gmail.com>
Date: Sat, 31 Aug 2013 00:11:57 +0900
Subject: mmc: dw_mmc: exynos: move the exynos private init

Currently platform specific private data initialization is done by
dw_mci_exynos_priv_init and dw_mci_exynos_parse_dt. As we already have
separate platform specific device tree parser dw_mci_exynos_parse_dt,
move the dw_mci_exynos_priv_init code to dw_mci_exynos_parse_dt.
We can use the dw_mci_exynos_priv_init to do some actual platform
specific initialization of SMU and etc.

Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc-exynos.c | 34 ++++++++++++++++------------------
 1 file changed, 16 insertions(+), 18 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index 2f28dd8098f9..37bad61a1754 100644
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -72,22 +72,8 @@ static struct dw_mci_exynos_compatible {
 
 static int dw_mci_exynos_priv_init(struct dw_mci *host)
 {
-	struct dw_mci_exynos_priv_data *priv;
-	int idx;
-
-	priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL);
-	if (!priv) {
-		dev_err(host->dev, "mem alloc failed for private data\n");
-		return -ENOMEM;
-	}
-
-	for (idx = 0; idx < ARRAY_SIZE(exynos_compat); idx++) {
-		if (of_device_is_compatible(host->dev->of_node,
-					exynos_compat[idx].compatible))
-			priv->ctrl_type = exynos_compat[idx].ctrl_type;
-	}
+	struct dw_mci_exynos_priv_data *priv = host->priv;
 
-	host->priv = priv;
 	return 0;
 }
 
@@ -174,12 +160,24 @@ static void dw_mci_exynos_set_ios(struct dw_mci *host, struct mmc_ios *ios)
 
 static int dw_mci_exynos_parse_dt(struct dw_mci *host)
 {
-	struct dw_mci_exynos_priv_data *priv = host->priv;
+	struct dw_mci_exynos_priv_data *priv;
 	struct device_node *np = host->dev->of_node;
 	u32 timing[2];
 	u32 div = 0;
+	int idx;
 	int ret;
 
+	priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv) {
+		dev_err(host->dev, "mem alloc failed for private data\n");
+		return -ENOMEM;
+	}
+
+	for (idx = 0; idx < ARRAY_SIZE(exynos_compat); idx++) {
+		if (of_device_is_compatible(np, exynos_compat[idx].compatible))
+			priv->ctrl_type = exynos_compat[idx].ctrl_type;
+	}
+
 	of_property_read_u32(np, "samsung,dw-mshc-ciu-div", &div);
 	priv->ciu_div = div;
 
@@ -188,14 +186,14 @@ static int dw_mci_exynos_parse_dt(struct dw_mci *host)
 	if (ret)
 		return ret;
 
-	priv->sdr_timing = SDMMC_CLKSEL_TIMING(timing[0], timing[1], div);
-
 	ret = of_property_read_u32_array(np,
 			"samsung,dw-mshc-ddr-timing", timing, 2);
 	if (ret)
 		return ret;
 
+	priv->sdr_timing = SDMMC_CLKSEL_TIMING(timing[0], timing[1], div);
 	priv->ddr_timing = SDMMC_CLKSEL_TIMING(timing[0], timing[1], div);
+	host->priv = priv;
 	return 0;
 }
 
-- 
cgit 


From 3aa741f39587d03f38b1c8883d3cf06d242abf16 Mon Sep 17 00:00:00 2001
From: Yuvaraj Kumar C D <yuvaraj.cd@gmail.com>
Date: Sat, 31 Aug 2013 00:12:10 +0900
Subject: mmc: dw_mmc: socfpga: move socfpga private init

Currently platform specific private data initialization is done by
dw_mci_socfpga_priv_init and dw_mci_socfpga_parse_dt. As we already have
separate platform specific device tree parser dw_mci_socfpga_parse_dt,
move the dw_mci_socfpga_priv_init code to dw_mci_socfpga_parse_dt.
We can use the dw_mci_socfpga_priv_init to do some actual platform
specific initialization.

Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc-socfpga.c | 30 ++++++++++++++----------------
 1 file changed, 14 insertions(+), 16 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc-socfpga.c b/drivers/mmc/host/dw_mmc-socfpga.c
index 14b5961a851c..4d7b9998ad2b 100644
--- a/drivers/mmc/host/dw_mmc-socfpga.c
+++ b/drivers/mmc/host/dw_mmc-socfpga.c
@@ -38,21 +38,6 @@ struct dw_mci_socfpga_priv_data {
 
 static int dw_mci_socfpga_priv_init(struct dw_mci *host)
 {
-	struct dw_mci_socfpga_priv_data *priv;
-
-	priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL);
-	if (!priv) {
-		dev_err(host->dev, "mem alloc failed for private data\n");
-		return -ENOMEM;
-	}
-
-	priv->sysreg = syscon_regmap_lookup_by_compatible("altr,sys-mgr");
-	if (IS_ERR(priv->sysreg)) {
-		dev_err(host->dev, "regmap for altr,sys-mgr lookup failed.\n");
-		return PTR_ERR(priv->sysreg);
-	}
-	host->priv = priv;
-
 	return 0;
 }
 
@@ -79,12 +64,24 @@ static void dw_mci_socfpga_prepare_command(struct dw_mci *host, u32 *cmdr)
 
 static int dw_mci_socfpga_parse_dt(struct dw_mci *host)
 {
-	struct dw_mci_socfpga_priv_data *priv = host->priv;
+	struct dw_mci_socfpga_priv_data *priv;
 	struct device_node *np = host->dev->of_node;
 	u32 timing[2];
 	u32 div = 0;
 	int ret;
 
+	priv = devm_kzalloc(host->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv) {
+		dev_err(host->dev, "mem alloc failed for private data\n");
+		return -ENOMEM;
+	}
+
+	priv->sysreg = syscon_regmap_lookup_by_compatible("altr,sys-mgr");
+	if (IS_ERR(priv->sysreg)) {
+		dev_err(host->dev, "regmap for altr,sys-mgr lookup failed.\n");
+		return PTR_ERR(priv->sysreg);
+	}
+
 	ret = of_property_read_u32(np, "altr,dw-mshc-ciu-div", &div);
 	if (ret)
 		dev_info(host->dev, "No dw-mshc-ciu-div specified, assuming 1");
@@ -96,6 +93,7 @@ static int dw_mci_socfpga_parse_dt(struct dw_mci *host)
 		return ret;
 
 	priv->hs_timing = SYSMGR_SDMMC_CTRL_SET(timing[0], timing[1]);
+	host->priv = priv;
 	return 0;
 }
 
-- 
cgit 


From 002f0d5c63e9f37347864c1c9f5656c3cfdb6947 Mon Sep 17 00:00:00 2001
From: Yuvaraj Kumar C D <yuvaraj.cd@gmail.com>
Date: Sat, 31 Aug 2013 00:12:19 +0900
Subject: mmc: dw_mmc: move the platform specific init call

Current platform specific private data initialization call
dw_mci_exynos_priv_init() can be used to do platform specific
initialization of SMU and others in future. So the drv_data->init
call has moved to dw_mci_probe().

Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc-pltfm.c | 7 -------
 drivers/mmc/host/dw_mmc.c       | 9 +++++++++
 2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc-pltfm.c b/drivers/mmc/host/dw_mmc-pltfm.c
index 20897529ea5e..5c4965655297 100644
--- a/drivers/mmc/host/dw_mmc-pltfm.c
+++ b/drivers/mmc/host/dw_mmc-pltfm.c
@@ -39,7 +39,6 @@ int dw_mci_pltfm_register(struct platform_device *pdev,
 {
 	struct dw_mci *host;
 	struct resource	*regs;
-	int ret;
 
 	host = devm_kzalloc(&pdev->dev, sizeof(struct dw_mci), GFP_KERNEL);
 	if (!host)
@@ -59,12 +58,6 @@ int dw_mci_pltfm_register(struct platform_device *pdev,
 	if (IS_ERR(host->regs))
 		return PTR_ERR(host->regs);
 
-	if (drv_data && drv_data->init) {
-		ret = drv_data->init(host);
-		if (ret)
-			return ret;
-	}
-
 	platform_set_drvdata(pdev, host);
 	return dw_mci_probe(host);
 }
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 19b289d5dba8..9595922e231a 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -2227,6 +2227,15 @@ int dw_mci_probe(struct dw_mci *host)
 		host->bus_hz = clk_get_rate(host->ciu_clk);
 	}
 
+	if (drv_data && drv_data->init) {
+		ret = drv_data->init(host);
+		if (ret) {
+			dev_err(host->dev,
+				"implementation specific init failed\n");
+			goto err_clk_ciu;
+		}
+	}
+
 	if (drv_data && drv_data->setup_clock) {
 		ret = drv_data->setup_clock(host);
 		if (ret) {
-- 
cgit 


From 6bce431ca13bb72261adbd20b7bc58c447ef2ce3 Mon Sep 17 00:00:00 2001
From: Yuvaraj Kumar C D <yuvaraj.cd@gmail.com>
Date: Sat, 31 Aug 2013 00:12:35 +0900
Subject: mmc: dw_mmc: exynos: configure SMU in exynos5420

Exynos5420 Mobile Storage Host controller has Security Management
Unit (SMU) for channel 0 and channel 1 (mainly for eMMC).
This time, SMU configuration is set for non-encryption mode.

Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc-exynos.c | 38 +++++++++++++++++++++++++++++++++++++-
 1 file changed, 37 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index 37bad61a1754..83405bd8ab4c 100644
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -35,12 +35,32 @@
 #define EXYNOS4210_FIXED_CIU_CLK_DIV	2
 #define EXYNOS4412_FIXED_CIU_CLK_DIV	4
 
+/* Block number in eMMC */
+#define DWMCI_BLOCK_NUM		0xFFFFFFFF
+
+#define SDMMC_EMMCP_BASE	0x1000
+#define SDMMC_MPSECURITY	(SDMMC_EMMCP_BASE + 0x0010)
+#define SDMMC_MPSBEGIN0		(SDMMC_EMMCP_BASE + 0x0200)
+#define SDMMC_MPSEND0		(SDMMC_EMMCP_BASE + 0x0204)
+#define SDMMC_MPSCTRL0		(SDMMC_EMMCP_BASE + 0x020C)
+
+/* SMU control bits */
+#define DWMCI_MPSCTRL_SECURE_READ_BIT		BIT(7)
+#define DWMCI_MPSCTRL_SECURE_WRITE_BIT		BIT(6)
+#define DWMCI_MPSCTRL_NON_SECURE_READ_BIT	BIT(5)
+#define DWMCI_MPSCTRL_NON_SECURE_WRITE_BIT	BIT(4)
+#define DWMCI_MPSCTRL_USE_FUSE_KEY		BIT(3)
+#define DWMCI_MPSCTRL_ECB_MODE			BIT(2)
+#define DWMCI_MPSCTRL_ENCRYPTION		BIT(1)
+#define DWMCI_MPSCTRL_VALID			BIT(0)
+
 /* Variations in Exynos specific dw-mshc controller */
 enum dw_mci_exynos_type {
 	DW_MCI_TYPE_EXYNOS4210,
 	DW_MCI_TYPE_EXYNOS4412,
 	DW_MCI_TYPE_EXYNOS5250,
 	DW_MCI_TYPE_EXYNOS5420,
+	DW_MCI_TYPE_EXYNOS5420_SMU,
 };
 
 /* Exynos implementation specific driver private data */
@@ -67,6 +87,9 @@ static struct dw_mci_exynos_compatible {
 	}, {
 		.compatible	= "samsung,exynos5420-dw-mshc",
 		.ctrl_type	= DW_MCI_TYPE_EXYNOS5420,
+	}, {
+		.compatible	= "samsung,exynos5420-dw-mshc-smu",
+		.ctrl_type	= DW_MCI_TYPE_EXYNOS5420_SMU,
 	},
 };
 
@@ -74,6 +97,15 @@ static int dw_mci_exynos_priv_init(struct dw_mci *host)
 {
 	struct dw_mci_exynos_priv_data *priv = host->priv;
 
+	if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS5420_SMU) {
+		mci_writel(host, MPSBEGIN0, 0);
+		mci_writel(host, MPSEND0, DWMCI_BLOCK_NUM);
+		mci_writel(host, MPSCTRL0, DWMCI_MPSCTRL_SECURE_WRITE_BIT |
+			   DWMCI_MPSCTRL_NON_SECURE_READ_BIT |
+			   DWMCI_MPSCTRL_VALID |
+			   DWMCI_MPSCTRL_NON_SECURE_WRITE_BIT);
+	}
+
 	return 0;
 }
 
@@ -82,7 +114,8 @@ static int dw_mci_exynos_setup_clock(struct dw_mci *host)
 	struct dw_mci_exynos_priv_data *priv = host->priv;
 
 	if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS5250 ||
-		priv->ctrl_type == DW_MCI_TYPE_EXYNOS5420)
+	    priv->ctrl_type == DW_MCI_TYPE_EXYNOS5420 ||
+	    priv->ctrl_type == DW_MCI_TYPE_EXYNOS5420_SMU)
 		host->bus_hz /= (priv->ciu_div + 1);
 	else if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS4412)
 		host->bus_hz /= EXYNOS4412_FIXED_CIU_CLK_DIV;
@@ -104,6 +137,7 @@ static int dw_mci_exynos_resume(struct device *dev)
 {
 	struct dw_mci *host = dev_get_drvdata(dev);
 
+	dw_mci_exynos_priv_init(host);
 	return dw_mci_resume(host);
 }
 
@@ -222,6 +256,8 @@ static const struct of_device_id dw_mci_exynos_match[] = {
 			.data = &exynos_drv_data, },
 	{ .compatible = "samsung,exynos5420-dw-mshc",
 			.data = &exynos_drv_data, },
+	{ .compatible = "samsung,exynos5420-dw-mshc-smu",
+			.data = &exynos_drv_data, },
 	{},
 };
 MODULE_DEVICE_TABLE(of, dw_mci_exynos_match);
-- 
cgit 


From 0976f16d2d7fdd3d33738c1f64b83cde6f783db3 Mon Sep 17 00:00:00 2001
From: Seungwon Jeon <tgih.jun@samsung.com>
Date: Sat, 31 Aug 2013 00:12:42 +0900
Subject: mmc: dw_mmc: add support tuning scheme

For the speed modes HS200 and SDR104, tuning is needed to determine the
correct sampling point. Actual tuning procedure is provided by specific
host controller driver.  This patch defines the tuning command and
tuning data.  Additionally, 'struct dw_mci_slot' is moved to header
file to consider the extensive usages in driver.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc.c | 97 +++++++++++++++++++++++++++++------------------
 drivers/mmc/host/dw_mmc.h | 48 +++++++++++++++++++++++
 2 files changed, 108 insertions(+), 37 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 9595922e231a..696bb468fc8e 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -76,44 +76,34 @@ struct idmac_desc {
 };
 #endif /* CONFIG_MMC_DW_IDMAC */
 
-/**
- * struct dw_mci_slot - MMC slot state
- * @mmc: The mmc_host representing this slot.
- * @host: The MMC controller this slot is using.
- * @quirks: Slot-level quirks (DW_MCI_SLOT_QUIRK_XXX)
- * @wp_gpio: If gpio_is_valid() we'll use this to read write protect.
- * @ctype: Card type for this slot.
- * @mrq: mmc_request currently being processed or waiting to be
- *	processed, or NULL when the slot is idle.
- * @queue_node: List node for placing this node in the @queue list of
- *	&struct dw_mci.
- * @clock: Clock rate configured by set_ios(). Protected by host->lock.
- * @__clk_old: The last updated clock with reflecting clock divider.
- *	Keeping track of this helps us to avoid spamming the console
- *	with CONFIG_MMC_CLKGATE.
- * @flags: Random state bits associated with the slot.
- * @id: Number of this slot.
- * @last_detect_state: Most recently observed card detect state.
- */
-struct dw_mci_slot {
-	struct mmc_host		*mmc;
-	struct dw_mci		*host;
-
-	int			quirks;
-	int			wp_gpio;
-
-	u32			ctype;
-
-	struct mmc_request	*mrq;
-	struct list_head	queue_node;
+static const u8 tuning_blk_pattern_4bit[] = {
+	0xff, 0x0f, 0xff, 0x00, 0xff, 0xcc, 0xc3, 0xcc,
+	0xc3, 0x3c, 0xcc, 0xff, 0xfe, 0xff, 0xfe, 0xef,
+	0xff, 0xdf, 0xff, 0xdd, 0xff, 0xfb, 0xff, 0xfb,
+	0xbf, 0xff, 0x7f, 0xff, 0x77, 0xf7, 0xbd, 0xef,
+	0xff, 0xf0, 0xff, 0xf0, 0x0f, 0xfc, 0xcc, 0x3c,
+	0xcc, 0x33, 0xcc, 0xcf, 0xff, 0xef, 0xff, 0xee,
+	0xff, 0xfd, 0xff, 0xfd, 0xdf, 0xff, 0xbf, 0xff,
+	0xbb, 0xff, 0xf7, 0xff, 0xf7, 0x7f, 0x7b, 0xde,
+};
 
-	unsigned int		clock;
-	unsigned int		__clk_old;
-	unsigned long		flags;
-#define DW_MMC_CARD_PRESENT	0
-#define DW_MMC_CARD_NEED_INIT	1
-	int			id;
-	int			last_detect_state;
+static const u8 tuning_blk_pattern_8bit[] = {
+	0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00, 0x00,
+	0xff, 0xff, 0xcc, 0xcc, 0xcc, 0x33, 0xcc, 0xcc,
+	0xcc, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xff, 0xff,
+	0xff, 0xee, 0xff, 0xff, 0xff, 0xee, 0xee, 0xff,
+	0xff, 0xff, 0xdd, 0xff, 0xff, 0xff, 0xdd, 0xdd,
+	0xff, 0xff, 0xff, 0xbb, 0xff, 0xff, 0xff, 0xbb,
+	0xbb, 0xff, 0xff, 0xff, 0x77, 0xff, 0xff, 0xff,
+	0x77, 0x77, 0xff, 0x77, 0xbb, 0xdd, 0xee, 0xff,
+	0xff, 0xff, 0xff, 0x00, 0xff, 0xff, 0xff, 0x00,
+	0x00, 0xff, 0xff, 0xcc, 0xcc, 0xcc, 0x33, 0xcc,
+	0xcc, 0xcc, 0x33, 0x33, 0xcc, 0xcc, 0xcc, 0xff,
+	0xff, 0xff, 0xee, 0xff, 0xff, 0xff, 0xee, 0xee,
+	0xff, 0xff, 0xff, 0xdd, 0xff, 0xff, 0xff, 0xdd,
+	0xdd, 0xff, 0xff, 0xff, 0xbb, 0xff, 0xff, 0xff,
+	0xbb, 0xbb, 0xff, 0xff, 0xff, 0x77, 0xff, 0xff,
+	0xff, 0x77, 0x77, 0xff, 0x77, 0xbb, 0xdd, 0xee,
 };
 
 #if defined(CONFIG_DEBUG_FS)
@@ -951,6 +941,38 @@ static void dw_mci_enable_sdio_irq(struct mmc_host *mmc, int enb)
 	}
 }
 
+static int dw_mci_execute_tuning(struct mmc_host *mmc, u32 opcode)
+{
+	struct dw_mci_slot *slot = mmc_priv(mmc);
+	struct dw_mci *host = slot->host;
+	const struct dw_mci_drv_data *drv_data = host->drv_data;
+	struct dw_mci_tuning_data tuning_data;
+	int err = -ENOSYS;
+
+	if (opcode == MMC_SEND_TUNING_BLOCK_HS200) {
+		if (mmc->ios.bus_width == MMC_BUS_WIDTH_8) {
+			tuning_data.blk_pattern = tuning_blk_pattern_8bit;
+			tuning_data.blksz = sizeof(tuning_blk_pattern_8bit);
+		} else if (mmc->ios.bus_width == MMC_BUS_WIDTH_4) {
+			tuning_data.blk_pattern = tuning_blk_pattern_4bit;
+			tuning_data.blksz = sizeof(tuning_blk_pattern_4bit);
+		} else {
+			return -EINVAL;
+		}
+	} else if (opcode == MMC_SEND_TUNING_BLOCK) {
+		tuning_data.blk_pattern = tuning_blk_pattern_4bit;
+		tuning_data.blksz = sizeof(tuning_blk_pattern_4bit);
+	} else {
+		dev_err(host->dev,
+			"Undefined command(%d) for tuning\n", opcode);
+		return -EINVAL;
+	}
+
+	if (drv_data && drv_data->execute_tuning)
+		err = drv_data->execute_tuning(slot, opcode, &tuning_data);
+	return err;
+}
+
 static const struct mmc_host_ops dw_mci_ops = {
 	.request		= dw_mci_request,
 	.pre_req		= dw_mci_pre_req,
@@ -959,6 +981,7 @@ static const struct mmc_host_ops dw_mci_ops = {
 	.get_ro			= dw_mci_get_ro,
 	.get_cd			= dw_mci_get_cd,
 	.enable_sdio_irq	= dw_mci_enable_sdio_irq,
+	.execute_tuning		= dw_mci_execute_tuning,
 };
 
 static void dw_mci_request_end(struct dw_mci *host, struct mmc_request *mrq)
diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
index 81b29941c5b9..b281fdc6835f 100644
--- a/drivers/mmc/host/dw_mmc.h
+++ b/drivers/mmc/host/dw_mmc.h
@@ -183,6 +183,52 @@ extern int dw_mci_suspend(struct dw_mci *host);
 extern int dw_mci_resume(struct dw_mci *host);
 #endif
 
+/**
+ * struct dw_mci_slot - MMC slot state
+ * @mmc: The mmc_host representing this slot.
+ * @host: The MMC controller this slot is using.
+ * @quirks: Slot-level quirks (DW_MCI_SLOT_QUIRK_XXX)
+ * @wp_gpio: If gpio_is_valid() we'll use this to read write protect.
+ * @ctype: Card type for this slot.
+ * @mrq: mmc_request currently being processed or waiting to be
+ *	processed, or NULL when the slot is idle.
+ * @queue_node: List node for placing this node in the @queue list of
+ *	&struct dw_mci.
+ * @clock: Clock rate configured by set_ios(). Protected by host->lock.
+ * @__clk_old: The last updated clock with reflecting clock divider.
+ *	Keeping track of this helps us to avoid spamming the console
+ *	with CONFIG_MMC_CLKGATE.
+ * @flags: Random state bits associated with the slot.
+ * @id: Number of this slot.
+ * @last_detect_state: Most recently observed card detect state.
+ */
+struct dw_mci_slot {
+	struct mmc_host		*mmc;
+	struct dw_mci		*host;
+
+	int			quirks;
+	int			wp_gpio;
+
+	u32			ctype;
+
+	struct mmc_request	*mrq;
+	struct list_head	queue_node;
+
+	unsigned int		clock;
+	unsigned int		__clk_old;
+
+	unsigned long		flags;
+#define DW_MMC_CARD_PRESENT	0
+#define DW_MMC_CARD_NEED_INIT	1
+	int			id;
+	int			last_detect_state;
+};
+
+struct dw_mci_tuning_data {
+	const u8 *blk_pattern;
+	unsigned int blksz;
+};
+
 /**
  * dw_mci driver data - dw-mshc implementation specific driver data.
  * @caps: mmc subsystem specified capabilities of the controller(s).
@@ -203,5 +249,7 @@ struct dw_mci_drv_data {
 	void		(*prepare_command)(struct dw_mci *host, u32 *cmdr);
 	void		(*set_ios)(struct dw_mci *host, struct mmc_ios *ios);
 	int		(*parse_dt)(struct dw_mci *host);
+	int		(*execute_tuning)(struct dw_mci_slot *slot, u32 opcode,
+					struct dw_mci_tuning_data *tuning_data);
 };
 #endif /* _DW_MMC_H_ */
-- 
cgit 


From c537a1c5ff63d3553617a9ff80ef5ed1493028e2 Mon Sep 17 00:00:00 2001
From: Seungwon Jeon <tgih.jun@samsung.com>
Date: Sat, 31 Aug 2013 00:12:50 +0900
Subject: mmc: dw_mmc: exynos: add variable delay tuning sequence

Implements variable delay tuning. In this change, exynos host can
determine the correct sampling point for the HS200 and SDR104 speed mode.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc-exynos.c | 124 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 124 insertions(+)

diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index 83405bd8ab4c..b86f51845230 100644
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -14,8 +14,10 @@
 #include <linux/clk.h>
 #include <linux/mmc/host.h>
 #include <linux/mmc/dw_mmc.h>
+#include <linux/mmc/mmc.h>
 #include <linux/of.h>
 #include <linux/of_gpio.h>
+#include <linux/slab.h>
 
 #include "dw_mmc.h"
 #include "dw_mmc-pltfm.h"
@@ -231,6 +233,127 @@ static int dw_mci_exynos_parse_dt(struct dw_mci *host)
 	return 0;
 }
 
+static inline u8 dw_mci_exynos_get_clksmpl(struct dw_mci *host)
+{
+	return SDMMC_CLKSEL_CCLK_SAMPLE(mci_readl(host, CLKSEL));
+}
+
+static inline void dw_mci_exynos_set_clksmpl(struct dw_mci *host, u8 sample)
+{
+	u32 clksel;
+	clksel = mci_readl(host, CLKSEL);
+	clksel = (clksel & ~0x7) | SDMMC_CLKSEL_CCLK_SAMPLE(sample);
+	mci_writel(host, CLKSEL, clksel);
+}
+
+static inline u8 dw_mci_exynos_move_next_clksmpl(struct dw_mci *host)
+{
+	u32 clksel;
+	u8 sample;
+
+	clksel = mci_readl(host, CLKSEL);
+	sample = (clksel + 1) & 0x7;
+	clksel = (clksel & ~0x7) | sample;
+	mci_writel(host, CLKSEL, clksel);
+	return sample;
+}
+
+static s8 dw_mci_exynos_get_best_clksmpl(u8 candiates)
+{
+	const u8 iter = 8;
+	u8 __c;
+	s8 i, loc = -1;
+
+	for (i = 0; i < iter; i++) {
+		__c = ror8(candiates, i);
+		if ((__c & 0xc7) == 0xc7) {
+			loc = i;
+			goto out;
+		}
+	}
+
+	for (i = 0; i < iter; i++) {
+		__c = ror8(candiates, i);
+		if ((__c & 0x83) == 0x83) {
+			loc = i;
+			goto out;
+		}
+	}
+
+out:
+	return loc;
+}
+
+static int dw_mci_exynos_execute_tuning(struct dw_mci_slot *slot, u32 opcode,
+					struct dw_mci_tuning_data *tuning_data)
+{
+	struct dw_mci *host = slot->host;
+	struct mmc_host *mmc = slot->mmc;
+	const u8 *blk_pattern = tuning_data->blk_pattern;
+	u8 *blk_test;
+	unsigned int blksz = tuning_data->blksz;
+	u8 start_smpl, smpl, candiates = 0;
+	s8 found = -1;
+	int ret = 0;
+
+	blk_test = kmalloc(blksz, GFP_KERNEL);
+	if (!blk_test)
+		return -ENOMEM;
+
+	start_smpl = dw_mci_exynos_get_clksmpl(host);
+
+	do {
+		struct mmc_request mrq = {NULL};
+		struct mmc_command cmd = {0};
+		struct mmc_command stop = {0};
+		struct mmc_data data = {0};
+		struct scatterlist sg;
+
+		cmd.opcode = opcode;
+		cmd.arg = 0;
+		cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC;
+
+		stop.opcode = MMC_STOP_TRANSMISSION;
+		stop.arg = 0;
+		stop.flags = MMC_RSP_R1B | MMC_CMD_AC;
+
+		data.blksz = blksz;
+		data.blocks = 1;
+		data.flags = MMC_DATA_READ;
+		data.sg = &sg;
+		data.sg_len = 1;
+
+		sg_init_one(&sg, blk_test, blksz);
+		mrq.cmd = &cmd;
+		mrq.stop = &stop;
+		mrq.data = &data;
+		host->mrq = &mrq;
+
+		mci_writel(host, TMOUT, ~0);
+		smpl = dw_mci_exynos_move_next_clksmpl(host);
+
+		mmc_wait_for_req(mmc, &mrq);
+
+		if (!cmd.error && !data.error) {
+			if (!memcmp(blk_pattern, blk_test, blksz))
+				candiates |= (1 << smpl);
+		} else {
+			dev_dbg(host->dev,
+				"Tuning error: cmd.error:%d, data.error:%d\n",
+				cmd.error, data.error);
+		}
+	} while (start_smpl != smpl);
+
+	found = dw_mci_exynos_get_best_clksmpl(candiates);
+	if (found >= 0)
+		dw_mci_exynos_set_clksmpl(host, found);
+	else
+		ret = -EIO;
+
+	kfree(blk_test);
+	return ret;
+}
+
 /* Common capabilities of Exynos4/Exynos5 SoC */
 static unsigned long exynos_dwmmc_caps[4] = {
 	MMC_CAP_UHS_DDR50 | MMC_CAP_1_8V_DDR |
@@ -247,6 +370,7 @@ static const struct dw_mci_drv_data exynos_drv_data = {
 	.prepare_command	= dw_mci_exynos_prepare_command,
 	.set_ios		= dw_mci_exynos_set_ios,
 	.parse_dt		= dw_mci_exynos_parse_dt,
+	.execute_tuning		= dw_mci_exynos_execute_tuning,
 };
 
 static const struct of_device_id dw_mci_exynos_match[] = {
-- 
cgit 


From c6d9deda64d426a25aafeb179962c9cf3c834e2f Mon Sep 17 00:00:00 2001
From: Seungwon Jeon <tgih.jun@samsung.com>
Date: Sat, 31 Aug 2013 00:13:03 +0900
Subject: mmc: dw_mmc: exynos: adjust the clock rate with speed mode

Exynos's host has divider logic before 'cclk_in' to controller core.
It means that actual clock rate of ciu clock comes from this divider
value. So, source clock should be adjusted along with 'ciu_div' which
indicates the host's divider ratio. Setting clock rate basically fits
the required speed. Specially, 'cclk_in' should have double rate of
target speed in case of DDR 8-bit mode.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc-exynos.c | 55 ++++++++++++++++++++++++++++++----------
 1 file changed, 42 insertions(+), 13 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index b86f51845230..d42e664e78bc 100644
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -56,6 +56,8 @@
 #define DWMCI_MPSCTRL_ENCRYPTION		BIT(1)
 #define DWMCI_MPSCTRL_VALID			BIT(0)
 
+#define EXYNOS_CCLKIN_MIN	50000000	/* unit: HZ */
+
 /* Variations in Exynos specific dw-mshc controller */
 enum dw_mci_exynos_type {
 	DW_MCI_TYPE_EXYNOS4210,
@@ -71,6 +73,7 @@ struct dw_mci_exynos_priv_data {
 	u8				ciu_div;
 	u32				sdr_timing;
 	u32				ddr_timing;
+	u32				cur_speed;
 };
 
 static struct dw_mci_exynos_compatible {
@@ -114,16 +117,9 @@ static int dw_mci_exynos_priv_init(struct dw_mci *host)
 static int dw_mci_exynos_setup_clock(struct dw_mci *host)
 {
 	struct dw_mci_exynos_priv_data *priv = host->priv;
+	unsigned long rate = clk_get_rate(host->ciu_clk);
 
-	if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS5250 ||
-	    priv->ctrl_type == DW_MCI_TYPE_EXYNOS5420 ||
-	    priv->ctrl_type == DW_MCI_TYPE_EXYNOS5420_SMU)
-		host->bus_hz /= (priv->ciu_div + 1);
-	else if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS4412)
-		host->bus_hz /= EXYNOS4412_FIXED_CIU_CLK_DIV;
-	else if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS4210)
-		host->bus_hz /= EXYNOS4210_FIXED_CIU_CLK_DIV;
-
+	host->bus_hz = rate / (priv->ciu_div + 1);
 	return 0;
 }
 
@@ -187,11 +183,38 @@ static void dw_mci_exynos_prepare_command(struct dw_mci *host, u32 *cmdr)
 static void dw_mci_exynos_set_ios(struct dw_mci *host, struct mmc_ios *ios)
 {
 	struct dw_mci_exynos_priv_data *priv = host->priv;
+	unsigned int wanted = ios->clock;
+	unsigned long actual;
+	u8 div = priv->ciu_div + 1;
 
-	if (ios->timing == MMC_TIMING_UHS_DDR50)
+	if (ios->timing == MMC_TIMING_UHS_DDR50) {
 		mci_writel(host, CLKSEL, priv->ddr_timing);
-	else
+		/* Should be double rate for DDR mode */
+		if (ios->bus_width == MMC_BUS_WIDTH_8)
+			wanted <<= 1;
+	} else {
 		mci_writel(host, CLKSEL, priv->sdr_timing);
+	}
+
+	/* Don't care if wanted clock is zero */
+	if (!wanted)
+		return;
+
+	/* Guaranteed minimum frequency for cclkin */
+	if (wanted < EXYNOS_CCLKIN_MIN)
+		wanted = EXYNOS_CCLKIN_MIN;
+
+	if (wanted != priv->cur_speed) {
+		int ret = clk_set_rate(host->ciu_clk, wanted * div);
+		if (ret)
+			dev_warn(host->dev,
+				"failed to set clk-rate %u error: %d\n",
+				 wanted * div, ret);
+		actual = clk_get_rate(host->ciu_clk);
+		host->bus_hz = actual / div;
+		priv->cur_speed = wanted;
+		host->current_speed = 0;
+	}
 }
 
 static int dw_mci_exynos_parse_dt(struct dw_mci *host)
@@ -214,8 +237,14 @@ static int dw_mci_exynos_parse_dt(struct dw_mci *host)
 			priv->ctrl_type = exynos_compat[idx].ctrl_type;
 	}
 
-	of_property_read_u32(np, "samsung,dw-mshc-ciu-div", &div);
-	priv->ciu_div = div;
+	if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS4412)
+		priv->ciu_div = EXYNOS4412_FIXED_CIU_CLK_DIV - 1;
+	else if (priv->ctrl_type == DW_MCI_TYPE_EXYNOS4210)
+		priv->ciu_div = EXYNOS4210_FIXED_CIU_CLK_DIV - 1;
+	else {
+		of_property_read_u32(np, "samsung,dw-mshc-ciu-div", &div);
+		priv->ciu_div = div;
+	}
 
 	ret = of_property_read_u32_array(np,
 			"samsung,dw-mshc-sdr-timing", timing, 2);
-- 
cgit 


From 5dd63f524666d0b1d1b07da7cc993bc8fcd141a9 Mon Sep 17 00:00:00 2001
From: Seungwon Jeon <tgih.jun@samsung.com>
Date: Sat, 31 Aug 2013 00:13:09 +0900
Subject: mmc: dw_mmc: add the capability to support hs200 mode

As host controller can support eMMC's HS200 mode at 1.8V or 1.2V,
these capability will be added.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt | 5 +++++
 drivers/mmc/host/dw_mmc.c                                  | 6 ++++++
 2 files changed, 11 insertions(+)

diff --git a/Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt
index cdcebea9c6f5..ae5f8e89e845 100644
--- a/Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt
+++ b/Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt
@@ -66,6 +66,10 @@ Optional properties:
 
 * supports-highspeed: Enables support for high speed cards (up to 50MHz)
 
+* caps2-mmc-hs200-1_8v: Supports mmc HS200 SDR 1.8V mode
+
+* caps2-mmc-hs200-1_2v: Supports mmc HS200 SDR 1.2V mode
+
 * broken-cd: as documented in mmc core bindings.
 
 * vmmc-supply: The phandle to the regulator to use for vmmc.  If this is
@@ -95,6 +99,7 @@ board specific portions as listed below.
 		clock-frequency = <400000000>;
 		num-slots = <1>;
 		supports-highspeed;
+		caps2-mmc-hs200-1_8v;
 		broken-cd;
 		fifo-depth = <0x80>;
 		card-detect-delay = <200>;
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 696bb468fc8e..d9f864fd0771 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -2187,6 +2187,12 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
 	if (of_find_property(np, "enable-sdio-wakeup", NULL))
 		pdata->pm_caps |= MMC_PM_WAKE_SDIO_IRQ;
 
+	if (of_find_property(np, "caps2-mmc-hs200-1_8v", NULL))
+		pdata->caps2 |= MMC_CAP2_HS200_1_8V_SDR;
+
+	if (of_find_property(np, "caps2-mmc-hs200-1_2v", NULL))
+		pdata->caps2 |= MMC_CAP2_HS200_1_2V_SDR;
+
 	return pdata;
 }
 
-- 
cgit 


From 10b498419f41ffaca7510286c0db8ea34300576d Mon Sep 17 00:00:00 2001
From: Seungwon Jeon <tgih.jun@samsung.com>
Date: Sat, 31 Aug 2013 00:13:22 +0900
Subject: mmc: dw_mmc: move supports-highspeed of quirks to caps

'supports-highspeed' is not one of the quirks but is a capability.
So, it's removed from quirks.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index d9f864fd0771..cca9aa6b11c5 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -1999,9 +1999,6 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
 		mmc->caps |= MMC_CAP_4_BIT_DATA;
 	}
 
-	if (host->pdata->quirks & DW_MCI_QUIRK_HIGHSPEED)
-		mmc->caps |= MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED;
-
 	if (host->pdata->blk_settings) {
 		mmc->max_segs = host->pdata->blk_settings->max_segs;
 		mmc->max_blk_size = host->pdata->blk_settings->max_blk_size;
@@ -2130,9 +2127,6 @@ static struct dw_mci_of_quirks {
 	int id;
 } of_quirks[] = {
 	{
-		.quirk	= "supports-highspeed",
-		.id	= DW_MCI_QUIRK_HIGHSPEED,
-	}, {
 		.quirk	= "broken-cd",
 		.id	= DW_MCI_QUIRK_BROKEN_CARD_DETECTION,
 	},
@@ -2187,6 +2181,9 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
 	if (of_find_property(np, "enable-sdio-wakeup", NULL))
 		pdata->pm_caps |= MMC_PM_WAKE_SDIO_IRQ;
 
+	if (of_find_property(np, "supports-highspeed", NULL))
+		pdata->caps |= MMC_CAP_SD_HIGHSPEED | MMC_CAP_MMC_HIGHSPEED;
+
 	if (of_find_property(np, "caps2-mmc-hs200-1_8v", NULL))
 		pdata->caps2 |= MMC_CAP2_HS200_1_8V_SDR;
 
-- 
cgit 


From 1f44a2a55787faa08a50266fa5dc99f0dcd36b7c Mon Sep 17 00:00:00 2001
From: Seungwon Jeon <tgih.jun@samsung.com>
Date: Sat, 31 Aug 2013 00:13:31 +0900
Subject: mmc: dw_mmc: set the supported max/min frequency

Both f_max and f_min will be informed for core layer to request
valid clock rate. But current setting from 'host->bus_hz' may
not represent the max/min frequency properly. Even if host can
actually support high speed than bus_hz, core layer will not
request clock rate over bus_hz. Basically, f_max/f_min can be set
with the values according to spec. And then host will make its best
effort to meet the rate.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt |  4 ++++
 drivers/mmc/host/dw_mmc.c                                  | 14 ++++++++++++--
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt
index ae5f8e89e845..fdbf6863b00b 100644
--- a/Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt
+++ b/Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt
@@ -52,6 +52,9 @@ Optional properties:
   is specified and the ciu clock is specified then we'll try to set the ciu
   clock to this at probe time.
 
+* clock-freq-min-max: Minimum and Maximum clock frequency for card output
+  clock(cclk_out). If it's not specified, max is 200MHZ and min is 400KHz by default.
+
 * num-slots: specifies the number of slots supported by the controller.
   The number of physical slots actually used could be equal or less than the
   value specified by num-slots. If this property is not specified, the value
@@ -97,6 +100,7 @@ board specific portions as listed below.
 
 	dwmmc0@12200000 {
 		clock-frequency = <400000000>;
+		clock-freq-min-max = <400000 200000000>;
 		num-slots = <1>;
 		supports-highspeed;
 		caps2-mmc-hs200-1_8v;
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index cca9aa6b11c5..50da6e330a15 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -50,6 +50,9 @@
 #define DW_MCI_RECV_STATUS	2
 #define DW_MCI_DMA_THRESHOLD	16
 
+#define DW_MCI_FREQ_MAX	200000000	/* unit: HZ */
+#define DW_MCI_FREQ_MIN	400000		/* unit: HZ */
+
 #ifdef CONFIG_MMC_DW_IDMAC
 #define IDMAC_INT_CLR		(SDMMC_IDMAC_INT_AI | SDMMC_IDMAC_INT_NI | \
 				 SDMMC_IDMAC_INT_CES | SDMMC_IDMAC_INT_DU | \
@@ -1936,6 +1939,7 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
 	struct dw_mci_slot *slot;
 	const struct dw_mci_drv_data *drv_data = host->drv_data;
 	int ctrl_id, ret;
+	u32 freq[2];
 	u8 bus_width;
 
 	mmc = mmc_alloc_host(sizeof(struct dw_mci_slot), host->dev);
@@ -1951,8 +1955,14 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
 	slot->quirks = dw_mci_of_get_slot_quirks(host->dev, slot->id);
 
 	mmc->ops = &dw_mci_ops;
-	mmc->f_min = DIV_ROUND_UP(host->bus_hz, 510);
-	mmc->f_max = host->bus_hz;
+	if (of_property_read_u32_array(host->dev->of_node,
+				       "clock-freq-min-max", freq, 2)) {
+		mmc->f_min = DW_MCI_FREQ_MIN;
+		mmc->f_max = DW_MCI_FREQ_MAX;
+	} else {
+		mmc->f_min = freq[0];
+		mmc->f_max = freq[1];
+	}
 
 	if (host->pdata->get_ocr)
 		mmc->ocr_avail = host->pdata->get_ocr(id);
-- 
cgit 


From 524268990e54dab9bd71a984b70c13ce0eb1c525 Mon Sep 17 00:00:00 2001
From: Seungwon Jeon <tgih.jun@samsung.com>
Date: Sat, 31 Aug 2013 00:13:42 +0900
Subject: mmc: dw_mmc: adjust the fifoth with block size

This change helps to choose msize, rx_watermark and tx_watermark
depending on block size for IDMAC mode.  For SDIO block size can be
variable, so if these values are set incorrectly, card clock may stop.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc.c  | 74 ++++++++++++++++++++++++++++++++++++++++++++--
 drivers/mmc/host/dw_mmc.h  |  4 +++
 include/linux/mmc/dw_mmc.h |  1 +
 3 files changed, 76 insertions(+), 3 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 50da6e330a15..acefdeb2465b 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -529,6 +529,47 @@ static void dw_mci_post_req(struct mmc_host *mmc,
 	data->host_cookie = 0;
 }
 
+static void dw_mci_adjust_fifoth(struct dw_mci *host, struct mmc_data *data)
+{
+#ifdef CONFIG_MMC_DW_IDMAC
+	unsigned int blksz = data->blksz;
+	const u32 mszs[] = {1, 4, 8, 16, 32, 64, 128, 256};
+	u32 fifo_width = 1 << host->data_shift;
+	u32 blksz_depth = blksz / fifo_width, fifoth_val;
+	u32 msize = 0, rx_wmark = 1, tx_wmark, tx_wmark_invers;
+	int idx = (sizeof(mszs) / sizeof(mszs[0])) - 1;
+
+	tx_wmark = (host->fifo_depth) / 2;
+	tx_wmark_invers = host->fifo_depth - tx_wmark;
+
+	/*
+	 * MSIZE is '1',
+	 * if blksz is not a multiple of the FIFO width
+	 */
+	if (blksz % fifo_width) {
+		msize = 0;
+		rx_wmark = 1;
+		goto done;
+	}
+
+	do {
+		if (!((blksz_depth % mszs[idx]) ||
+		     (tx_wmark_invers % mszs[idx]))) {
+			msize = idx;
+			rx_wmark = mszs[idx] - 1;
+			break;
+		}
+	} while (--idx > 0);
+	/*
+	 * If idx is '0', it won't be tried
+	 * Thus, initial values are uesed
+	 */
+done:
+	fifoth_val = SDMMC_SET_FIFOTH(msize, rx_wmark, tx_wmark);
+	mci_writel(host, FIFOTH, fifoth_val);
+#endif
+}
+
 static int dw_mci_submit_data_dma(struct dw_mci *host, struct mmc_data *data)
 {
 	int sg_len;
@@ -553,6 +594,14 @@ static int dw_mci_submit_data_dma(struct dw_mci *host, struct mmc_data *data)
 		 (unsigned long)host->sg_cpu, (unsigned long)host->sg_dma,
 		 sg_len);
 
+	/*
+	 * Decide the MSIZE and RX/TX Watermark.
+	 * If current block size is same with previous size,
+	 * no need to update fifoth.
+	 */
+	if (host->prev_blksz != data->blksz)
+		dw_mci_adjust_fifoth(host, data);
+
 	/* Enable the DMA interface */
 	temp = mci_readl(host, CTRL);
 	temp |= SDMMC_CTRL_DMA_ENABLE;
@@ -603,6 +652,21 @@ static void dw_mci_submit_data(struct dw_mci *host, struct mmc_data *data)
 		temp = mci_readl(host, CTRL);
 		temp &= ~SDMMC_CTRL_DMA_ENABLE;
 		mci_writel(host, CTRL, temp);
+
+		/*
+		 * Use the initial fifoth_val for PIO mode.
+		 * If next issued data may be transfered by DMA mode,
+		 * prev_blksz should be invalidated.
+		 */
+		mci_writel(host, FIFOTH, host->fifoth_val);
+		host->prev_blksz = 0;
+	} else {
+		/*
+		 * Keep the current block size.
+		 * It will be used to decide whether to update
+		 * fifoth register next time.
+		 */
+		host->prev_blksz = data->blksz;
 	}
 }
 
@@ -2368,8 +2432,8 @@ int dw_mci_probe(struct dw_mci *host)
 		fifo_size = host->pdata->fifo_depth;
 	}
 	host->fifo_depth = fifo_size;
-	host->fifoth_val = ((0x2 << 28) | ((fifo_size/2 - 1) << 16) |
-			((fifo_size/2) << 0));
+	host->fifoth_val =
+		SDMMC_SET_FIFOTH(0x2, fifo_size / 2 - 1, fifo_size / 2);
 	mci_writel(host, FIFOTH, host->fifoth_val);
 
 	/* disable clock to CIU */
@@ -2552,8 +2616,12 @@ int dw_mci_resume(struct dw_mci *host)
 	if (host->use_dma && host->dma_ops->init)
 		host->dma_ops->init(host);
 
-	/* Restore the old value at FIFOTH register */
+	/*
+	 * Restore the initial value at FIFOTH register
+	 * And Invalidate the prev_blksz with zero
+	 */
 	mci_writel(host, FIFOTH, host->fifoth_val);
+	host->prev_blksz = 0;
 
 	/* Put in max timeout */
 	mci_writel(host, TMOUT, 0xFFFFFFFF);
diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
index b281fdc6835f..a0f2f8d35f5d 100644
--- a/drivers/mmc/host/dw_mmc.h
+++ b/drivers/mmc/host/dw_mmc.h
@@ -128,6 +128,10 @@
 #define SDMMC_CMD_INDX(n)		((n) & 0x1F)
 /* Status register defines */
 #define SDMMC_GET_FCNT(x)		(((x)>>17) & 0x1FFF)
+/* FIFOTH register defines */
+#define SDMMC_SET_FIFOTH(m, r, t)	(((m) & 0x7) << 28 | \
+					 ((r) & 0xFFF) << 16 | \
+					 ((t) & 0xFFF))
 /* Internal DMAC interrupt defines */
 #define SDMMC_IDMAC_INT_AI		BIT(9)
 #define SDMMC_IDMAC_INT_NI		BIT(8)
diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
index 198f0fa44e9f..4ec9dcc9460e 100644
--- a/include/linux/mmc/dw_mmc.h
+++ b/include/linux/mmc/dw_mmc.h
@@ -129,6 +129,7 @@ struct dw_mci {
 	struct mmc_request	*mrq;
 	struct mmc_command	*cmd;
 	struct mmc_data		*data;
+	unsigned int		prev_blksz;
 	struct workqueue_struct	*card_workqueue;
 
 	/* DMA interface members*/
-- 
cgit 


From f1d2736c815629f3b43d8eebf73a81b581438e65 Mon Sep 17 00:00:00 2001
From: Seungwon Jeon <tgih.jun@samsung.com>
Date: Sat, 31 Aug 2013 00:13:55 +0900
Subject: mmc: dw_mmc: control card read threshold

Card Read Threshold should be ensured that the card clock does not stop
in the middle of a block of data being transferred from the card to the
Host. Specially, clock stop is allowed in fast transfer such as HS200
or SDR104 mode. And so, it should be enabled.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc.c  | 38 ++++++++++++++++++++++++++++++++++++--
 drivers/mmc/host/dw_mmc.h  |  3 +++
 include/linux/mmc/dw_mmc.h |  1 +
 3 files changed, 40 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index acefdeb2465b..8eb37983a72a 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -570,6 +570,37 @@ done:
 #endif
 }
 
+static void dw_mci_ctrl_rd_thld(struct dw_mci *host, struct mmc_data *data)
+{
+	unsigned int blksz = data->blksz;
+	u32 blksz_depth, fifo_depth;
+	u16 thld_size;
+
+	WARN_ON(!(data->flags & MMC_DATA_READ));
+
+	if (host->timing != MMC_TIMING_MMC_HS200 &&
+	    host->timing != MMC_TIMING_UHS_SDR104)
+		goto disable;
+
+	blksz_depth = blksz / (1 << host->data_shift);
+	fifo_depth = host->fifo_depth;
+
+	if (blksz_depth > fifo_depth)
+		goto disable;
+
+	/*
+	 * If (blksz_depth) >= (fifo_depth >> 1), should be 'thld_size <= blksz'
+	 * If (blksz_depth) <  (fifo_depth >> 1), should be thld_size = blksz
+	 * Currently just choose blksz.
+	 */
+	thld_size = blksz;
+	mci_writel(host, CDTHRCTL, SDMMC_SET_RD_THLD(thld_size, 1));
+	return;
+
+disable:
+	mci_writel(host, CDTHRCTL, SDMMC_SET_RD_THLD(0, 0));
+}
+
 static int dw_mci_submit_data_dma(struct dw_mci *host, struct mmc_data *data)
 {
 	int sg_len;
@@ -627,10 +658,12 @@ static void dw_mci_submit_data(struct dw_mci *host, struct mmc_data *data)
 	host->sg = NULL;
 	host->data = data;
 
-	if (data->flags & MMC_DATA_READ)
+	if (data->flags & MMC_DATA_READ) {
 		host->dir_status = DW_MCI_RECV_STATUS;
-	else
+		dw_mci_ctrl_rd_thld(host, data);
+	} else {
 		host->dir_status = DW_MCI_SEND_STATUS;
+	}
 
 	if (dw_mci_submit_data_dma(host, data)) {
 		int flags = SG_MITER_ATOMIC;
@@ -877,6 +910,7 @@ static void dw_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 		regs &= ~((0x1 << slot->id) << 16);
 
 	mci_writel(slot->host, UHS_REG, regs);
+	slot->host->timing = ios->timing;
 
 	/*
 	 * Use mirror of ios->clock to prevent race with mmc
diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
index a0f2f8d35f5d..6bf24ab917e6 100644
--- a/drivers/mmc/host/dw_mmc.h
+++ b/drivers/mmc/host/dw_mmc.h
@@ -53,6 +53,7 @@
 #define SDMMC_IDINTEN		0x090
 #define SDMMC_DSCADDR		0x094
 #define SDMMC_BUFADDR		0x098
+#define SDMMC_CDTHRCTL		0x100
 #define SDMMC_DATA(x)		(x)
 
 /*
@@ -146,6 +147,8 @@
 #define SDMMC_IDMAC_SWRESET		BIT(0)
 /* Version ID register define */
 #define SDMMC_GET_VERID(x)		((x) & 0xFFFF)
+/* Card read threshold */
+#define SDMMC_SET_RD_THLD(v, x)		(((v) & 0x1FFF) << 16 | (x))
 
 /* Register access macros */
 #define mci_readl(dev, reg)			\
diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
index 4ec9dcc9460e..a829f7ee28c8 100644
--- a/include/linux/mmc/dw_mmc.h
+++ b/include/linux/mmc/dw_mmc.h
@@ -130,6 +130,7 @@ struct dw_mci {
 	struct mmc_command	*cmd;
 	struct mmc_data		*data;
 	unsigned int		prev_blksz;
+	unsigned char		timing;
 	struct workqueue_struct	*card_workqueue;
 
 	/* DMA interface members*/
-- 
cgit 


From 71abb1339436160b6ab0ae2f816a4046c7328f28 Mon Sep 17 00:00:00 2001
From: Seungwon Jeon <tgih.jun@samsung.com>
Date: Sat, 31 Aug 2013 00:13:59 +0900
Subject: mmc: dw_mmc: fix error handling on response error

Even if response error is detected in case data command, data transfer
is continued. It means that data can live in FIFO. Current handling
just breaks out the request when seeing the command error. This causes
kernel panic in dw_mci_read_data_pio() [host->data = NULL]. And also,
FIFO should be guaranteed to be empty.

Unable to handle kernel NULL pointer dereference at virtual address 00000018
<...>
[<c02af814>] (dw_mci_read_data_pio+0x68/0x198) from [<c02b04b4>] (dw_mci_interrupt+0x374/0x3a0)
[<c02b04b4>] (dw_mci_interrupt+0x374/0x3a0) from [<c006b094>] (handle_irq_event_percpu+0x50/0x194)
[<c006b094>] (handle_irq_event_percpu+0x50/0x194) from [<c006b214>] (handle_irq_event+0x3c/0x5c)
[<c006b214>] (handle_irq_event+0x3c/0x5c) from [<c006de1c>] (handle_fasteoi_irq+0xa4/0x148)
[<c006de1c>] (handle_fasteoi_irq+0xa4/0x148) from [<c006aa88>] (generic_handle_irq+0x20/0x30)
[<c006aa88>] (generic_handle_irq+0x20/0x30) from [<c000f154>] (handle_IRQ+0x38/0x90)
[<c000f154>] (handle_IRQ+0x38/0x90) from [<c00085bc>] (gic_handle_irq+0x34/0x68)
[<c00085bc>] (gic_handle_irq+0x34/0x68) from [<c0011f40>] (__irq_svc+0x40/0x70)
Exception stack(0xef0b1c00 to 0xef0b1c48)
1c00: 000eb0cf ffffffff 00001300 c01a7738 ef295e10 0000000a c04df298 ef0b1dc0
1c20: ef295ec0 00000000 00000000 00000006 00000000 ef0b1c48 c02b1274 c01a7764
1c40: 20000113 ffffffff
[<c0011f40>] (__irq_svc+0x40/0x70) from 	[<c01a7764>] (__loop_delay+0x0/0xc)
Code: e1a00005 e0891006 e0662004 e12fff33 (e59a3018)
---[ end trace a7043b9ba9aed1db ]---
Kernel panic - not syncing: Fatal exception in interrupt

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc.c | 26 +++++++++++++++++++++-----
 1 file changed, 21 insertions(+), 5 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 8eb37983a72a..649127e71894 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -1148,11 +1148,6 @@ static void dw_mci_command_complete(struct dw_mci *host, struct mmc_command *cmd
 		/* newer ip versions need a delay between retries */
 		if (host->quirks & DW_MCI_QUIRK_RETRY_DELAY)
 			mdelay(20);
-
-		if (cmd->data) {
-			dw_mci_stop_dma(host);
-			host->data = NULL;
-		}
 	}
 }
 
@@ -1193,6 +1188,17 @@ static void dw_mci_tasklet_func(unsigned long priv)
 				goto unlock;
 			}
 
+			if (cmd->data && cmd->error) {
+				dw_mci_stop_dma(host);
+				if (data->stop) {
+					send_stop_cmd(host, data);
+					state = STATE_SENDING_STOP;
+					break;
+				} else {
+					host->data = NULL;
+				}
+			}
+
 			if (!host->mrq->data || cmd->error) {
 				dw_mci_request_end(host, host->mrq);
 				goto unlock;
@@ -1287,7 +1293,17 @@ static void dw_mci_tasklet_func(unsigned long priv)
 						&host->pending_events))
 				break;
 
+			/* CMD error in data command */
+			if (host->mrq->cmd->error && host->mrq->data) {
+				sg_miter_stop(&host->sg_miter);
+				host->sg = NULL;
+				ctrl = mci_readl(host, CTRL);
+				ctrl |= SDMMC_CTRL_FIFO_RESET;
+				mci_writel(host, CTRL, ctrl);
+			}
+
 			host->cmd = NULL;
+			host->data = NULL;
 			dw_mci_command_complete(host, host->mrq->stop);
 			dw_mci_request_end(host, host->mrq);
 			goto unlock;
-- 
cgit 


From 90c2143a8f6d0cd1dbae1ea32fcd1befb81e4b0d Mon Sep 17 00:00:00 2001
From: Seungwon Jeon <tgih.jun@samsung.com>
Date: Sat, 31 Aug 2013 00:14:05 +0900
Subject: mmc: dw_mmc: guarantee stop-abort cmd in data errors

In error cases, DTO interrupt may or may not be generated depending
on remained data. Stop/Abort command ensures DTO generation for that
situation. Currently if 'stop' field of data is empty, there is no
stop/abort command. So, it could hang waiting DTO. This change
reinforces these cases.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc.c  | 84 +++++++++++++++++++++++++++++++++++-----------
 include/linux/mmc/dw_mmc.h |  2 ++
 2 files changed, 66 insertions(+), 20 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 649127e71894..b4328ad59cf0 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -29,6 +29,7 @@
 #include <linux/irq.h>
 #include <linux/mmc/host.h>
 #include <linux/mmc/mmc.h>
+#include <linux/mmc/sdio.h>
 #include <linux/mmc/dw_mmc.h>
 #include <linux/bitops.h>
 #include <linux/regulator/consumer.h>
@@ -246,10 +247,15 @@ static u32 dw_mci_prepare_command(struct mmc_host *mmc, struct mmc_command *cmd)
 
 	cmdr = cmd->opcode;
 
-	if (cmdr == MMC_STOP_TRANSMISSION)
+	if (cmd->opcode == MMC_STOP_TRANSMISSION ||
+	    cmd->opcode == MMC_GO_IDLE_STATE ||
+	    cmd->opcode == MMC_GO_INACTIVE_STATE ||
+	    (cmd->opcode == SD_IO_RW_DIRECT &&
+	     ((cmd->arg >> 9) & 0x1FFFF) == SDIO_CCCR_ABORT))
 		cmdr |= SDMMC_CMD_STOP;
 	else
-		cmdr |= SDMMC_CMD_PRV_DAT_WAIT;
+		if (cmd->opcode != MMC_SEND_STATUS && cmd->data)
+			cmdr |= SDMMC_CMD_PRV_DAT_WAIT;
 
 	if (cmd->flags & MMC_RSP_PRESENT) {
 		/* We expect a response, so set this bit */
@@ -276,6 +282,40 @@ static u32 dw_mci_prepare_command(struct mmc_host *mmc, struct mmc_command *cmd)
 	return cmdr;
 }
 
+static u32 dw_mci_prep_stop_abort(struct dw_mci *host, struct mmc_command *cmd)
+{
+	struct mmc_command *stop;
+	u32 cmdr;
+
+	if (!cmd->data)
+		return 0;
+
+	stop = &host->stop_abort;
+	cmdr = cmd->opcode;
+	memset(stop, 0, sizeof(struct mmc_command));
+
+	if (cmdr == MMC_READ_SINGLE_BLOCK ||
+	    cmdr == MMC_READ_MULTIPLE_BLOCK ||
+	    cmdr == MMC_WRITE_BLOCK ||
+	    cmdr == MMC_WRITE_MULTIPLE_BLOCK) {
+		stop->opcode = MMC_STOP_TRANSMISSION;
+		stop->arg = 0;
+		stop->flags = MMC_RSP_R1B | MMC_CMD_AC;
+	} else if (cmdr == SD_IO_RW_EXTENDED) {
+		stop->opcode = SD_IO_RW_DIRECT;
+		stop->arg |= (1 << 31) | (0 << 28) | (SDIO_CCCR_ABORT << 9) |
+			     ((cmd->arg >> 28) & 0x7);
+		stop->flags = MMC_RSP_SPI_R5 | MMC_RSP_R5 | MMC_CMD_AC;
+	} else {
+		return 0;
+	}
+
+	cmdr = stop->opcode | SDMMC_CMD_STOP |
+		SDMMC_CMD_RESP_CRC | SDMMC_CMD_RESP_EXP;
+
+	return cmdr;
+}
+
 static void dw_mci_start_command(struct dw_mci *host,
 				 struct mmc_command *cmd, u32 cmd_flags)
 {
@@ -290,9 +330,10 @@ static void dw_mci_start_command(struct dw_mci *host,
 	mci_writel(host, CMD, cmd_flags | SDMMC_CMD_START);
 }
 
-static void send_stop_cmd(struct dw_mci *host, struct mmc_data *data)
+static inline void send_stop_abort(struct dw_mci *host, struct mmc_data *data)
 {
-	dw_mci_start_command(host, data->stop, host->stop_cmdr);
+	struct mmc_command *stop = data->stop ? data->stop : &host->stop_abort;
+	dw_mci_start_command(host, stop, host->stop_cmdr);
 }
 
 /* DMA interface functions */
@@ -828,6 +869,8 @@ static void __dw_mci_start_request(struct dw_mci *host,
 
 	if (mrq->stop)
 		host->stop_cmdr = dw_mci_prepare_command(slot->mmc, mrq->stop);
+	else
+		host->stop_cmdr = dw_mci_prep_stop_abort(host, cmd);
 }
 
 static void dw_mci_start_request(struct dw_mci *host,
@@ -1190,13 +1233,9 @@ static void dw_mci_tasklet_func(unsigned long priv)
 
 			if (cmd->data && cmd->error) {
 				dw_mci_stop_dma(host);
-				if (data->stop) {
-					send_stop_cmd(host, data);
-					state = STATE_SENDING_STOP;
-					break;
-				} else {
-					host->data = NULL;
-				}
+				send_stop_abort(host, data);
+				state = STATE_SENDING_STOP;
+				break;
 			}
 
 			if (!host->mrq->data || cmd->error) {
@@ -1211,8 +1250,7 @@ static void dw_mci_tasklet_func(unsigned long priv)
 			if (test_and_clear_bit(EVENT_DATA_ERROR,
 					       &host->pending_events)) {
 				dw_mci_stop_dma(host);
-				if (data->stop)
-					send_stop_cmd(host, data);
+				send_stop_abort(host, data);
 				state = STATE_DATA_ERROR;
 				break;
 			}
@@ -1272,7 +1310,7 @@ static void dw_mci_tasklet_func(unsigned long priv)
 				data->error = 0;
 			}
 
-			if (!data->stop) {
+			if (!data->stop && !data->error) {
 				dw_mci_request_end(host, host->mrq);
 				goto unlock;
 			}
@@ -1284,8 +1322,10 @@ static void dw_mci_tasklet_func(unsigned long priv)
 			}
 
 			prev_state = state = STATE_SENDING_STOP;
-			if (!data->error)
-				send_stop_cmd(host, data);
+			if (data->stop && !data->error) {
+				/* stop command for open-ended transfer*/
+				send_stop_abort(host, data);
+			}
 			/* fall through */
 
 		case STATE_SENDING_STOP:
@@ -1304,7 +1344,12 @@ static void dw_mci_tasklet_func(unsigned long priv)
 
 			host->cmd = NULL;
 			host->data = NULL;
-			dw_mci_command_complete(host, host->mrq->stop);
+
+			if (host->mrq->stop)
+				dw_mci_command_complete(host, host->mrq->stop);
+			else
+				host->cmd_status = 0;
+
 			dw_mci_request_end(host, host->mrq);
 			goto unlock;
 
@@ -1888,11 +1933,10 @@ static void dw_mci_work_routine_card(struct work_struct *work)
 					case STATE_DATA_ERROR:
 						if (mrq->data->error == -EINPROGRESS)
 							mrq->data->error = -ENOMEDIUM;
-						if (!mrq->stop)
-							break;
 						/* fall through */
 					case STATE_SENDING_STOP:
-						mrq->stop->error = -ENOMEDIUM;
+						if (mrq->stop)
+							mrq->stop->error = -ENOMEDIUM;
 						break;
 					}
 
diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h
index a829f7ee28c8..6ce7d2cd3c7a 100644
--- a/include/linux/mmc/dw_mmc.h
+++ b/include/linux/mmc/dw_mmc.h
@@ -15,6 +15,7 @@
 #define LINUX_MMC_DW_MMC_H
 
 #include <linux/scatterlist.h>
+#include <linux/mmc/core.h>
 
 #define MAX_MCI_SLOTS	2
 
@@ -129,6 +130,7 @@ struct dw_mci {
 	struct mmc_request	*mrq;
 	struct mmc_command	*cmd;
 	struct mmc_data		*data;
+	struct mmc_command	stop_abort;
 	unsigned int		prev_blksz;
 	unsigned char		timing;
 	struct workqueue_struct	*card_workqueue;
-- 
cgit 


From e352c813110004b205ad285dcf54619a4c09c47c Mon Sep 17 00:00:00 2001
From: Seungwon Jeon <tgih.jun@samsung.com>
Date: Sat, 31 Aug 2013 00:14:17 +0900
Subject: mmc: dw_mmc: rework the code related to cmd/data completion

Main change corresponds to dw_mci_command_complete().  And EBE is
divided into read and write.  Some minor changes for code readability.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc.c | 147 ++++++++++++++++++++++++++--------------------
 1 file changed, 84 insertions(+), 63 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index b4328ad59cf0..03ee5c61e25b 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -845,7 +845,9 @@ static void __dw_mci_start_request(struct dw_mci *host,
 
 	host->pending_events = 0;
 	host->completed_events = 0;
+	host->cmd_status = 0;
 	host->data_status = 0;
+	host->dir_status = 0;
 
 	data = cmd->data;
 	if (data) {
@@ -1157,7 +1159,7 @@ static void dw_mci_request_end(struct dw_mci *host, struct mmc_request *mrq)
 	spin_lock(&host->lock);
 }
 
-static void dw_mci_command_complete(struct dw_mci *host, struct mmc_command *cmd)
+static int dw_mci_command_complete(struct dw_mci *host, struct mmc_command *cmd)
 {
 	u32 status = host->cmd_status;
 
@@ -1192,6 +1194,57 @@ static void dw_mci_command_complete(struct dw_mci *host, struct mmc_command *cmd
 		if (host->quirks & DW_MCI_QUIRK_RETRY_DELAY)
 			mdelay(20);
 	}
+
+	return cmd->error;
+}
+
+static int dw_mci_data_complete(struct dw_mci *host, struct mmc_data *data)
+{
+	u32 status = host->data_status, ctrl;
+
+	if (status & DW_MCI_DATA_ERROR_FLAGS) {
+		if (status & SDMMC_INT_DRTO) {
+			data->error = -ETIMEDOUT;
+		} else if (status & SDMMC_INT_DCRC) {
+			data->error = -EILSEQ;
+		} else if (status & SDMMC_INT_EBE) {
+			if (host->dir_status ==
+				DW_MCI_SEND_STATUS) {
+				/*
+				 * No data CRC status was returned.
+				 * The number of bytes transferred
+				 * will be exaggerated in PIO mode.
+				 */
+				data->bytes_xfered = 0;
+				data->error = -ETIMEDOUT;
+			} else if (host->dir_status ==
+					DW_MCI_RECV_STATUS) {
+				data->error = -EIO;
+			}
+		} else {
+			/* SDMMC_INT_SBE is included */
+			data->error = -EIO;
+		}
+
+		dev_err(host->dev, "data error, status 0x%08x\n", status);
+
+		/*
+		 * After an error, there may be data lingering
+		 * in the FIFO, so reset it - doing so
+		 * generates a block interrupt, hence setting
+		 * the scatter-gather pointer to NULL.
+		 */
+		sg_miter_stop(&host->sg_miter);
+		host->sg = NULL;
+		ctrl = mci_readl(host, CTRL);
+		ctrl |= SDMMC_CTRL_FIFO_RESET;
+		mci_writel(host, CTRL, ctrl);
+	} else {
+		data->bytes_xfered = data->blocks * data->blksz;
+		data->error = 0;
+	}
+
+	return data->error;
 }
 
 static void dw_mci_tasklet_func(unsigned long priv)
@@ -1199,14 +1252,17 @@ static void dw_mci_tasklet_func(unsigned long priv)
 	struct dw_mci *host = (struct dw_mci *)priv;
 	struct mmc_data	*data;
 	struct mmc_command *cmd;
+	struct mmc_request *mrq;
 	enum dw_mci_state state;
 	enum dw_mci_state prev_state;
-	u32 status, ctrl;
+	u32 ctrl;
+	unsigned int err;
 
 	spin_lock(&host->lock);
 
 	state = host->state;
 	data = host->data;
+	mrq = host->mrq;
 
 	do {
 		prev_state = state;
@@ -1223,23 +1279,23 @@ static void dw_mci_tasklet_func(unsigned long priv)
 			cmd = host->cmd;
 			host->cmd = NULL;
 			set_bit(EVENT_CMD_COMPLETE, &host->completed_events);
-			dw_mci_command_complete(host, cmd);
-			if (cmd == host->mrq->sbc && !cmd->error) {
+			err = dw_mci_command_complete(host, cmd);
+			if (cmd == mrq->sbc && !err) {
 				prev_state = state = STATE_SENDING_CMD;
 				__dw_mci_start_request(host, host->cur_slot,
-						       host->mrq->cmd);
+						       mrq->cmd);
 				goto unlock;
 			}
 
-			if (cmd->data && cmd->error) {
+			if (cmd->data && err) {
 				dw_mci_stop_dma(host);
 				send_stop_abort(host, data);
 				state = STATE_SENDING_STOP;
 				break;
 			}
 
-			if (!host->mrq->data || cmd->error) {
-				dw_mci_request_end(host, host->mrq);
+			if (!cmd->data || err) {
+				dw_mci_request_end(host, mrq);
 				goto unlock;
 			}
 
@@ -1270,62 +1326,27 @@ static void dw_mci_tasklet_func(unsigned long priv)
 
 			host->data = NULL;
 			set_bit(EVENT_DATA_COMPLETE, &host->completed_events);
-			status = host->data_status;
-
-			if (status & DW_MCI_DATA_ERROR_FLAGS) {
-				if (status & SDMMC_INT_DRTO) {
-					data->error = -ETIMEDOUT;
-				} else if (status & SDMMC_INT_DCRC) {
-					data->error = -EILSEQ;
-				} else if (status & SDMMC_INT_EBE &&
-					   host->dir_status ==
-							DW_MCI_SEND_STATUS) {
-					/*
-					 * No data CRC status was returned.
-					 * The number of bytes transferred will
-					 * be exaggerated in PIO mode.
-					 */
-					data->bytes_xfered = 0;
-					data->error = -ETIMEDOUT;
-				} else {
-					dev_err(host->dev,
-						"data FIFO error "
-						"(status=%08x)\n",
-						status);
-					data->error = -EIO;
-				}
-				/*
-				 * After an error, there may be data lingering
-				 * in the FIFO, so reset it - doing so
-				 * generates a block interrupt, hence setting
-				 * the scatter-gather pointer to NULL.
-				 */
-				sg_miter_stop(&host->sg_miter);
-				host->sg = NULL;
-				ctrl = mci_readl(host, CTRL);
-				ctrl |= SDMMC_CTRL_FIFO_RESET;
-				mci_writel(host, CTRL, ctrl);
-			} else {
-				data->bytes_xfered = data->blocks * data->blksz;
-				data->error = 0;
-			}
+			err = dw_mci_data_complete(host, data);
 
-			if (!data->stop && !data->error) {
-				dw_mci_request_end(host, host->mrq);
-				goto unlock;
-			}
+			if (!err) {
+				if (!data->stop || mrq->sbc) {
+					if (mrq->sbc)
+						data->stop->error = 0;
+					dw_mci_request_end(host, mrq);
+					goto unlock;
+				}
 
-			if (host->mrq->sbc && !data->error) {
-				data->stop->error = 0;
-				dw_mci_request_end(host, host->mrq);
-				goto unlock;
+				/* stop command for open-ended transfer*/
+				if (data->stop)
+					send_stop_abort(host, data);
 			}
 
+			/*
+			 * If err has non-zero,
+			 * stop-abort command has been already issued.
+			 */
 			prev_state = state = STATE_SENDING_STOP;
-			if (data->stop && !data->error) {
-				/* stop command for open-ended transfer*/
-				send_stop_abort(host, data);
-			}
+
 			/* fall through */
 
 		case STATE_SENDING_STOP:
@@ -1334,7 +1355,7 @@ static void dw_mci_tasklet_func(unsigned long priv)
 				break;
 
 			/* CMD error in data command */
-			if (host->mrq->cmd->error && host->mrq->data) {
+			if (mrq->cmd->error && mrq->data) {
 				sg_miter_stop(&host->sg_miter);
 				host->sg = NULL;
 				ctrl = mci_readl(host, CTRL);
@@ -1345,12 +1366,12 @@ static void dw_mci_tasklet_func(unsigned long priv)
 			host->cmd = NULL;
 			host->data = NULL;
 
-			if (host->mrq->stop)
-				dw_mci_command_complete(host, host->mrq->stop);
+			if (mrq->stop)
+				dw_mci_command_complete(host, mrq->stop);
 			else
 				host->cmd_status = 0;
 
-			dw_mci_request_end(host, host->mrq);
+			dw_mci_request_end(host, mrq);
 			goto unlock;
 
 		case STATE_DATA_ERROR:
-- 
cgit 


From 31bff450d243bc6a75bdfd0a60e4bc18907c7f27 Mon Sep 17 00:00:00 2001
From: Seungwon Jeon <tgih.jun@samsung.com>
Date: Sat, 31 Aug 2013 00:14:23 +0900
Subject: mmc: dw_mmc: gather each reset code into functions

There are three resets in CTRL register.  FIFO reset is especially used
in several points with the same routine. It could be replaced with one
function and the others may be applied similarly if needed.  So,
mci_wait_reset() is modified to allow various bit field of reset.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc.c | 81 +++++++++++++++++++++++++----------------------
 1 file changed, 43 insertions(+), 38 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 03ee5c61e25b..068f61190bc9 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -110,6 +110,9 @@ static const u8 tuning_blk_pattern_8bit[] = {
 	0xff, 0x77, 0x77, 0xff, 0x77, 0xbb, 0xdd, 0xee,
 };
 
+static inline bool dw_mci_fifo_reset(struct dw_mci *host);
+static inline bool dw_mci_ctrl_all_reset(struct dw_mci *host);
+
 #if defined(CONFIG_DEBUG_FS)
 static int dw_mci_req_show(struct seq_file *s, void *v)
 {
@@ -1200,7 +1203,7 @@ static int dw_mci_command_complete(struct dw_mci *host, struct mmc_command *cmd)
 
 static int dw_mci_data_complete(struct dw_mci *host, struct mmc_data *data)
 {
-	u32 status = host->data_status, ctrl;
+	u32 status = host->data_status;
 
 	if (status & DW_MCI_DATA_ERROR_FLAGS) {
 		if (status & SDMMC_INT_DRTO) {
@@ -1230,15 +1233,9 @@ static int dw_mci_data_complete(struct dw_mci *host, struct mmc_data *data)
 
 		/*
 		 * After an error, there may be data lingering
-		 * in the FIFO, so reset it - doing so
-		 * generates a block interrupt, hence setting
-		 * the scatter-gather pointer to NULL.
+		 * in the FIFO
 		 */
-		sg_miter_stop(&host->sg_miter);
-		host->sg = NULL;
-		ctrl = mci_readl(host, CTRL);
-		ctrl |= SDMMC_CTRL_FIFO_RESET;
-		mci_writel(host, CTRL, ctrl);
+		dw_mci_fifo_reset(host);
 	} else {
 		data->bytes_xfered = data->blocks * data->blksz;
 		data->error = 0;
@@ -1255,7 +1252,6 @@ static void dw_mci_tasklet_func(unsigned long priv)
 	struct mmc_request *mrq;
 	enum dw_mci_state state;
 	enum dw_mci_state prev_state;
-	u32 ctrl;
 	unsigned int err;
 
 	spin_lock(&host->lock);
@@ -1355,13 +1351,8 @@ static void dw_mci_tasklet_func(unsigned long priv)
 				break;
 
 			/* CMD error in data command */
-			if (mrq->cmd->error && mrq->data) {
-				sg_miter_stop(&host->sg_miter);
-				host->sg = NULL;
-				ctrl = mci_readl(host, CTRL);
-				ctrl |= SDMMC_CTRL_FIFO_RESET;
-				mci_writel(host, CTRL, ctrl);
-			}
+			if (mrq->cmd->error && mrq->data)
+				dw_mci_fifo_reset(host);
 
 			host->cmd = NULL;
 			host->data = NULL;
@@ -1980,18 +1971,8 @@ static void dw_mci_work_routine_card(struct work_struct *work)
 			if (present == 0) {
 				clear_bit(DW_MMC_CARD_PRESENT, &slot->flags);
 
-				/*
-				 * Clear down the FIFO - doing so generates a
-				 * block interrupt, hence setting the
-				 * scatter-gather pointer to NULL.
-				 */
-				sg_miter_stop(&host->sg_miter);
-				host->sg = NULL;
-
-				ctrl = mci_readl(host, CTRL);
-				ctrl |= SDMMC_CTRL_FIFO_RESET;
-				mci_writel(host, CTRL, ctrl);
-
+				/* Clear down the FIFO */
+				dw_mci_fifo_reset(host);
 #ifdef CONFIG_MMC_DW_IDMAC
 				ctrl = mci_readl(host, BMOD);
 				/* Software reset of DMA */
@@ -2289,27 +2270,51 @@ no_dma:
 	return;
 }
 
-static bool mci_wait_reset(struct device *dev, struct dw_mci *host)
+static bool dw_mci_ctrl_reset(struct dw_mci *host, u32 reset)
 {
 	unsigned long timeout = jiffies + msecs_to_jiffies(500);
-	unsigned int ctrl;
+	u32 ctrl;
 
-	mci_writel(host, CTRL, (SDMMC_CTRL_RESET | SDMMC_CTRL_FIFO_RESET |
-				SDMMC_CTRL_DMA_RESET));
+	ctrl = mci_readl(host, CTRL);
+	ctrl |= reset;
+	mci_writel(host, CTRL, ctrl);
 
 	/* wait till resets clear */
 	do {
 		ctrl = mci_readl(host, CTRL);
-		if (!(ctrl & (SDMMC_CTRL_RESET | SDMMC_CTRL_FIFO_RESET |
-			      SDMMC_CTRL_DMA_RESET)))
+		if (!(ctrl & reset))
 			return true;
 	} while (time_before(jiffies, timeout));
 
-	dev_err(dev, "Timeout resetting block (ctrl %#x)\n", ctrl);
+	dev_err(host->dev,
+		"Timeout resetting block (ctrl reset %#x)\n",
+		ctrl & reset);
 
 	return false;
 }
 
+static inline bool dw_mci_fifo_reset(struct dw_mci *host)
+{
+	/*
+	 * Reseting generates a block interrupt, hence setting
+	 * the scatter-gather pointer to NULL.
+	 */
+	if (host->sg) {
+		sg_miter_stop(&host->sg_miter);
+		host->sg = NULL;
+	}
+
+	return dw_mci_ctrl_reset(host, SDMMC_CTRL_FIFO_RESET);
+}
+
+static inline bool dw_mci_ctrl_all_reset(struct dw_mci *host)
+{
+	return dw_mci_ctrl_reset(host,
+				 SDMMC_CTRL_FIFO_RESET |
+				 SDMMC_CTRL_RESET |
+				 SDMMC_CTRL_DMA_RESET);
+}
+
 #ifdef CONFIG_OF
 static struct dw_mci_of_quirks {
 	char *quirk;
@@ -2517,7 +2522,7 @@ int dw_mci_probe(struct dw_mci *host)
 	}
 
 	/* Reset all blocks */
-	if (!mci_wait_reset(host->dev, host))
+	if (!dw_mci_ctrl_all_reset(host))
 		return -ENODEV;
 
 	host->dma_ops = host->pdata->dma_ops;
@@ -2723,7 +2728,7 @@ int dw_mci_resume(struct dw_mci *host)
 		}
 	}
 
-	if (!mci_wait_reset(host->dev, host)) {
+	if (!dw_mci_ctrl_all_reset(host)) {
 		ret = -ENODEV;
 		return ret;
 	}
-- 
cgit 


From 5ce9d96177908e288bf64449a3b7b7159940050b Mon Sep 17 00:00:00 2001
From: Seungwon Jeon <tgih.jun@samsung.com>
Date: Sat, 31 Aug 2013 00:14:33 +0900
Subject: mmc: dw_mmc: amend use of idmac sw reset

First, compiling warning along with previous change is removed.
[drivers/mmc/host/dw_mmc.c:1890:7: warning: unused variable 'ctrl']
And with the recommendation in manual, IDMAC software reset is followed
by dma-reset of the CTRL register in order to terminate the transfer.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 068f61190bc9..05c239f96079 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -372,6 +372,14 @@ static void dw_mci_dma_cleanup(struct dw_mci *host)
 				     dw_mci_get_dma_dir(data));
 }
 
+static void dw_mci_idmac_reset(struct dw_mci *host)
+{
+	u32 bmod = mci_readl(host, BMOD);
+	/* Software reset of DMA */
+	bmod |= SDMMC_IDMAC_SWRESET;
+	mci_writel(host, BMOD, bmod);
+}
+
 static void dw_mci_idmac_stop_dma(struct dw_mci *host)
 {
 	u32 temp;
@@ -385,6 +393,7 @@ static void dw_mci_idmac_stop_dma(struct dw_mci *host)
 	/* Stop the IDMAC running */
 	temp = mci_readl(host, BMOD);
 	temp &= ~(SDMMC_IDMAC_ENABLE | SDMMC_IDMAC_FB);
+	temp |= SDMMC_IDMAC_SWRESET;
 	mci_writel(host, BMOD, temp);
 }
 
@@ -476,7 +485,7 @@ static int dw_mci_idmac_init(struct dw_mci *host)
 	p->des3 = host->sg_dma;
 	p->des0 = IDMAC_DES0_ER;
 
-	mci_writel(host, BMOD, SDMMC_IDMAC_SWRESET);
+	dw_mci_idmac_reset(host);
 
 	/* Mask out interrupts - get Tx & Rx complete only */
 	mci_writel(host, IDSTS, IDMAC_INT_CLR);
@@ -1906,7 +1915,6 @@ static void dw_mci_work_routine_card(struct work_struct *work)
 		struct mmc_host *mmc = slot->mmc;
 		struct mmc_request *mrq;
 		int present;
-		u32 ctrl;
 
 		present = dw_mci_get_cd(mmc);
 		while (present != slot->last_detect_state) {
@@ -1974,10 +1982,7 @@ static void dw_mci_work_routine_card(struct work_struct *work)
 				/* Clear down the FIFO */
 				dw_mci_fifo_reset(host);
 #ifdef CONFIG_MMC_DW_IDMAC
-				ctrl = mci_readl(host, BMOD);
-				/* Software reset of DMA */
-				ctrl |= SDMMC_IDMAC_SWRESET;
-				mci_writel(host, BMOD, ctrl);
+				dw_mci_idmac_reset(host);
 #endif
 
 			}
-- 
cgit 


From aa50f259d65603f40a82ef0d256a6a954a3db283 Mon Sep 17 00:00:00 2001
From: Seungwon Jeon <tgih.jun@samsung.com>
Date: Sat, 31 Aug 2013 00:14:38 +0900
Subject: mmc: dw_mmc: fix the transfer termination in IDMAC mode

In IDMAC mode EVENT_XFER_COMPLETE is set when RI/TI of last descriptor
is done. So if errors are happened in the middle of data transfers,
'dw_mci_stop_dma' during error handing can be called and eventually
prevents this flag to be set.  This results in permanent wait for
EVENT_XFER_COMPLETE in 'dw_mci_tasklet_func'.  Therefore, if dma
running is stopped forcibly, EVENT_XFER_COMPLETE should be set.

Reported-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 05c239f96079..0a6a51238b7f 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -345,10 +345,10 @@ static void dw_mci_stop_dma(struct dw_mci *host)
 	if (host->using_dma) {
 		host->dma_ops->stop(host);
 		host->dma_ops->cleanup(host);
-	} else {
-		/* Data transfer was stopped by the interrupt handler */
-		set_bit(EVENT_XFER_COMPLETE, &host->pending_events);
 	}
+
+	/* Data transfer was stopped by the interrupt handler */
+	set_bit(EVENT_XFER_COMPLETE, &host->pending_events);
 }
 
 static int dw_mci_get_dma_dir(struct mmc_data *data)
-- 
cgit 


From a27fbf2f067b0cd6f172c8b696b9a44c58bfaa7a Mon Sep 17 00:00:00 2001
From: Seungwon Jeon <tgih.jun@samsung.com>
Date: Wed, 4 Sep 2013 21:21:05 +0900
Subject: mmc: add ignorance case for CMD13 CRC error

While speed mode is changed, CMD13 cannot be guaranteed.
According to the spec., it is not recommended to use CMD13
to check the busy completion of the timing change.
If CMD13 is used in this case, CRC error must be ignored.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/core/mmc_ops.c | 73 ++++++++++++++++++++++++++++------------------
 1 file changed, 45 insertions(+), 28 deletions(-)

diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index ef183483d5b6..37f7d7059ab7 100644
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -23,6 +23,40 @@
 
 #define MMC_OPS_TIMEOUT_MS	(10 * 60 * 1000) /* 10 minute timeout */
 
+static inline int __mmc_send_status(struct mmc_card *card, u32 *status,
+				    bool ignore_crc)
+{
+	int err;
+	struct mmc_command cmd = {0};
+
+	BUG_ON(!card);
+	BUG_ON(!card->host);
+
+	cmd.opcode = MMC_SEND_STATUS;
+	if (!mmc_host_is_spi(card->host))
+		cmd.arg = card->rca << 16;
+	cmd.flags = MMC_RSP_SPI_R2 | MMC_RSP_R1 | MMC_CMD_AC;
+	if (ignore_crc)
+		cmd.flags &= ~MMC_RSP_CRC;
+
+	err = mmc_wait_for_cmd(card->host, &cmd, MMC_CMD_RETRIES);
+	if (err)
+		return err;
+
+	/* NOTE: callers are required to understand the difference
+	 * between "native" and SPI format status words!
+	 */
+	if (status)
+		*status = cmd.resp[0];
+
+	return 0;
+}
+
+int mmc_send_status(struct mmc_card *card, u32 *status)
+{
+	return __mmc_send_status(card, status, false);
+}
+
 static int _mmc_select_card(struct mmc_host *host, struct mmc_card *card)
 {
 	int err;
@@ -380,6 +414,7 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
 	struct mmc_command cmd = {0};
 	unsigned long timeout;
 	u32 status;
+	bool ignore_crc = false;
 
 	BUG_ON(!card);
 	BUG_ON(!card->host);
@@ -408,10 +443,18 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
 	if (!use_busy_signal)
 		return 0;
 
-	/* Must check status to be sure of no errors */
+	/*
+	 * Must check status to be sure of no errors
+	 * If CMD13 is to check the busy completion of the timing change,
+	 * disable the check of CRC error.
+	 */
+	if (index == EXT_CSD_HS_TIMING &&
+	    !(card->host->caps & MMC_CAP_WAIT_WHILE_BUSY))
+		ignore_crc = true;
+
 	timeout = jiffies + msecs_to_jiffies(MMC_OPS_TIMEOUT_MS);
 	do {
-		err = mmc_send_status(card, &status);
+		err = __mmc_send_status(card, &status, ignore_crc);
 		if (err)
 			return err;
 		if (card->host->caps & MMC_CAP_WAIT_WHILE_BUSY)
@@ -449,32 +492,6 @@ int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
 }
 EXPORT_SYMBOL_GPL(mmc_switch);
 
-int mmc_send_status(struct mmc_card *card, u32 *status)
-{
-	int err;
-	struct mmc_command cmd = {0};
-
-	BUG_ON(!card);
-	BUG_ON(!card->host);
-
-	cmd.opcode = MMC_SEND_STATUS;
-	if (!mmc_host_is_spi(card->host))
-		cmd.arg = card->rca << 16;
-	cmd.flags = MMC_RSP_SPI_R2 | MMC_RSP_R1 | MMC_CMD_AC;
-
-	err = mmc_wait_for_cmd(card->host, &cmd, MMC_CMD_RETRIES);
-	if (err)
-		return err;
-
-	/* NOTE: callers are required to understand the difference
-	 * between "native" and SPI format status words!
-	 */
-	if (status)
-		*status = cmd.resp[0];
-
-	return 0;
-}
-
 static int
 mmc_send_bus_test(struct mmc_card *card, struct mmc_host *host, u8 opcode,
 		  u8 len)
-- 
cgit 


From c1fa3426aa5c782724c97394303d52228206eda4 Mon Sep 17 00:00:00 2001
From: Ludovic Desroches <ludovic.desroches@atmel.com>
Date: Mon, 9 Sep 2013 17:29:56 +0200
Subject: mmc: atmel-mci: abort transfer on timeout error

When a software timeout occurs, the transfer is not stopped. In DMA case,
it causes DMA channel to be stuck because the transfer is still active
causing following transfers to be queued but not computed.

Cc: <stable@vger.kernel.org> # 3.9+
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Reported-by: Alexander Morozov <etesial@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/atmel-mci.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 69e438ee043e..b8dfe0d8adbb 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -589,6 +589,13 @@ static void atmci_timeout_timer(unsigned long data)
 	if (host->mrq->cmd->data) {
 		host->mrq->cmd->data->error = -ETIMEDOUT;
 		host->data = NULL;
+		/*
+		 * With some SDIO modules, sometimes DMA transfer hangs. If
+		 * stop_transfer() is not called then the DMA request is not
+		 * removed, following ones are queued and never computed.
+		 */
+		if (host->state == STATE_DATA_XFER)
+			host->stop_transfer(host);
 	} else {
 		host->mrq->cmd->error = -ETIMEDOUT;
 		host->cmd = NULL;
-- 
cgit 


From fbd986cd420d1deeabf1039ec4e74075a5639db5 Mon Sep 17 00:00:00 2001
From: Rodolfo Giometti <giometti@enneenne.com>
Date: Mon, 9 Sep 2013 17:31:59 +0200
Subject: mmc: atmel-mci: fix oops in atmci_tasklet_func

In some cases, a NULL pointer dereference happens because data is NULL when
STATE_END_REQUEST case is reached in atmci_tasklet_func.

Cc: <stable@vger.kernel.org> # 3.9+
Signed-off-by: Rodolfo Giometti <giometti@enneenne.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/atmel-mci.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index b8dfe0d8adbb..92c18779d47e 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -1810,12 +1810,14 @@ static void atmci_tasklet_func(unsigned long priv)
 			if (unlikely(status)) {
 				host->stop_transfer(host);
 				host->data = NULL;
-				if (status & ATMCI_DTOE) {
-					data->error = -ETIMEDOUT;
-				} else if (status & ATMCI_DCRCE) {
-					data->error = -EILSEQ;
-				} else {
-					data->error = -EIO;
+				if (data) {
+					if (status & ATMCI_DTOE) {
+						data->error = -ETIMEDOUT;
+					} else if (status & ATMCI_DCRCE) {
+						data->error = -EILSEQ;
+					} else {
+						data->error = -EIO;
+					}
 				}
 			}
 
-- 
cgit 


From 71ef1ea418ee45a4f939d53a02410627b394c336 Mon Sep 17 00:00:00 2001
From: Jackey Shen <jackey.shen@amd.com>
Date: Fri, 17 May 2013 17:17:43 +0800
Subject: mmc: core: clean up duplicate macros

Clean up the duplicate macros:
mmc_sd_card_uhs -> mmc_card_uhs
mmc_sd_card_set_uhs -> mmc_card_set_uhs

Signed-off-by: Jackey Shen <jackey.shen@amd.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/core/bus.c            | 2 +-
 drivers/mmc/host/rtsx_pci_sdmmc.c | 2 +-
 include/linux/mmc/card.h          | 2 --
 3 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
index 704bf66f5873..cdca8a70da38 100644
--- a/drivers/mmc/core/bus.c
+++ b/drivers/mmc/core/bus.c
@@ -340,7 +340,7 @@ int mmc_add_card(struct mmc_card *card)
 		break;
 	}
 
-	if (mmc_sd_card_uhs(card) &&
+	if (mmc_card_uhs(card) &&
 		(card->sd_bus_speed < ARRAY_SIZE(uhs_speeds)))
 		uhs_bus_speed_mode = uhs_speeds[card->sd_bus_speed];
 
diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c
index 375a880e0c5f..e2ab12473f97 100644
--- a/drivers/mmc/host/rtsx_pci_sdmmc.c
+++ b/drivers/mmc/host/rtsx_pci_sdmmc.c
@@ -364,7 +364,7 @@ static int sd_rw_multi(struct realtek_pci_sdmmc *host, struct mmc_request *mrq)
 	struct mmc_host *mmc = host->mmc;
 	struct mmc_card *card = mmc->card;
 	struct mmc_data *data = mrq->data;
-	int uhs = mmc_sd_card_uhs(card);
+	int uhs = mmc_card_uhs(card);
 	int read = (data->flags & MMC_DATA_READ) ? 1 : 0;
 	u8 cfg2, trans_mode;
 	int err;
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index 842de3e21e70..f42cdbd8ac21 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -420,7 +420,6 @@ static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data)
 #define mmc_card_blockaddr(c)	((c)->state & MMC_STATE_BLOCKADDR)
 #define mmc_card_ddr_mode(c)	((c)->state & MMC_STATE_HIGHSPEED_DDR)
 #define mmc_card_uhs(c)		((c)->state & MMC_STATE_ULTRAHIGHSPEED)
-#define mmc_sd_card_uhs(c)	((c)->state & MMC_STATE_ULTRAHIGHSPEED)
 #define mmc_card_ext_capacity(c) ((c)->state & MMC_CARD_SDXC)
 #define mmc_card_removed(c)	((c) && ((c)->state & MMC_CARD_REMOVED))
 #define mmc_card_doing_bkops(c)	((c)->state & MMC_STATE_DOING_BKOPS)
@@ -432,7 +431,6 @@ static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data)
 #define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR)
 #define mmc_card_set_ddr_mode(c) ((c)->state |= MMC_STATE_HIGHSPEED_DDR)
 #define mmc_card_set_uhs(c) ((c)->state |= MMC_STATE_ULTRAHIGHSPEED)
-#define mmc_sd_card_set_uhs(c) ((c)->state |= MMC_STATE_ULTRAHIGHSPEED)
 #define mmc_card_set_ext_capacity(c) ((c)->state |= MMC_CARD_SDXC)
 #define mmc_card_set_removed(c) ((c)->state |= MMC_CARD_REMOVED)
 #define mmc_card_set_doing_bkops(c)	((c)->state |= MMC_STATE_DOING_BKOPS)
-- 
cgit 


From e02d2930040f993922e9c4449e3d90c8040cfedc Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 12 Sep 2013 12:16:34 +0530
Subject: mmc: mvsdio: Convert to devm_ioremap_resource

devm_request_and_ioremap() is deprecated. Use devm_ioremap_resource()
instead.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/mvsdio.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
index 06c5b0b28ebc..a592407d2de6 100644
--- a/drivers/mmc/host/mvsdio.c
+++ b/drivers/mmc/host/mvsdio.c
@@ -775,9 +775,9 @@ static int __init mvsd_probe(struct platform_device *pdev)
 
 	spin_lock_init(&host->lock);
 
-	host->base = devm_request_and_ioremap(&pdev->dev, r);
-	if (!host->base) {
-		ret = -ENOMEM;
+	host->base = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(host->base)) {
+		ret = PTR_ERR(host->base);
 		goto out;
 	}
 
-- 
cgit 


From 21f67c2fd820b615ca7f5b1e87704b605410308e Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 12 Sep 2013 12:16:35 +0530
Subject: mmc: dw_mmc-socfpga: Remove redundant of_match_ptr

'dw_mci_socfpga_match' is always compiled in.
Hence of_match_ptr is not necessary.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc-socfpga.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/host/dw_mmc-socfpga.c b/drivers/mmc/host/dw_mmc-socfpga.c
index 4d7b9998ad2b..8e8e2050f3e7 100644
--- a/drivers/mmc/host/dw_mmc-socfpga.c
+++ b/drivers/mmc/host/dw_mmc-socfpga.c
@@ -126,7 +126,7 @@ static struct platform_driver dw_mci_socfpga_pltfm_driver = {
 	.remove		= __exit_p(dw_mci_pltfm_remove),
 	.driver		= {
 		.name		= "dwmmc_socfpga",
-		.of_match_table	= of_match_ptr(dw_mci_socfpga_match),
+		.of_match_table	= dw_mci_socfpga_match,
 		.pm		= &dw_mci_pltfm_pmops,
 	},
 };
-- 
cgit 


From 08de89b7915afaba00164f2a972290b86aa27e6d Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 12 Sep 2013 12:16:36 +0530
Subject: mmc: dw_mmc-socfpga: Staticize dw_mci_socfpga_probe

'dw_mci_socfpga_probe' is used only in this file. Make it static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc-socfpga.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/host/dw_mmc-socfpga.c b/drivers/mmc/host/dw_mmc-socfpga.c
index 8e8e2050f3e7..3e8e53ae3302 100644
--- a/drivers/mmc/host/dw_mmc-socfpga.c
+++ b/drivers/mmc/host/dw_mmc-socfpga.c
@@ -111,7 +111,7 @@ static const struct of_device_id dw_mci_socfpga_match[] = {
 };
 MODULE_DEVICE_TABLE(of, dw_mci_socfpga_match);
 
-int dw_mci_socfpga_probe(struct platform_device *pdev)
+static int dw_mci_socfpga_probe(struct platform_device *pdev)
 {
 	const struct dw_mci_drv_data *drv_data;
 	const struct of_device_id *match;
-- 
cgit 


From ff1acfd0def7487d0554048bc613db4e7c3f3211 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Tue, 17 Sep 2013 15:59:32 +0800
Subject: mmc: sdhci-bcm-kona: Use sdhci_pltfm_unregister instead of open coded

This avoid duplicated implementation and also fixes missing iounmap() and
release_mem_region() calls in sdhci_bcm_kona_remove().  sdhci_pltfm_init()
calls request_mem_region() and ioremap(), thus we need to call the
corresponding iounmap() and release_mem_region() calls in
sdhci_bcm_kona_remove().

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci-bcm-kona.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/mmc/host/sdhci-bcm-kona.c b/drivers/mmc/host/sdhci-bcm-kona.c
index 85472d3fd37f..7a190fe4dff1 100644
--- a/drivers/mmc/host/sdhci-bcm-kona.c
+++ b/drivers/mmc/host/sdhci-bcm-kona.c
@@ -316,19 +316,7 @@ err_pltfm_free:
 
 static int __exit sdhci_bcm_kona_remove(struct platform_device *pdev)
 {
-	struct sdhci_host *host = platform_get_drvdata(pdev);
-	int dead;
-	u32 scratch;
-
-	dead = 0;
-	scratch = readl(host->ioaddr + SDHCI_INT_STATUS);
-	if (scratch == (u32)-1)
-		dead = 1;
-	sdhci_remove_host(host, dead);
-
-	sdhci_free_host(host);
-
-	return 0;
+	return sdhci_pltfm_unregister(pdev);
 }
 
 static struct platform_driver sdhci_bcm_kona_driver = {
-- 
cgit 


From d0e04938275e63d4df17ee00714c3635a4ac925c Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Tue, 17 Sep 2013 16:00:47 +0800
Subject: mmc: sdhci-bcm2835: Use sdhci_pltfm_unregister instead of open coded

This avoid duplicated implementation.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci-bcm2835.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/mmc/host/sdhci-bcm2835.c b/drivers/mmc/host/sdhci-bcm2835.c
index 36fa2df04660..f6d8d67c545f 100644
--- a/drivers/mmc/host/sdhci-bcm2835.c
+++ b/drivers/mmc/host/sdhci-bcm2835.c
@@ -178,13 +178,7 @@ err:
 
 static int bcm2835_sdhci_remove(struct platform_device *pdev)
 {
-	struct sdhci_host *host = platform_get_drvdata(pdev);
-	int dead = (readl(host->ioaddr + SDHCI_INT_STATUS) == 0xffffffff);
-
-	sdhci_remove_host(host, dead);
-	sdhci_pltfm_free(pdev);
-
-	return 0;
+	return sdhci_pltfm_unregister(pdev);
 }
 
 static const struct of_device_id bcm2835_sdhci_of_match[] = {
-- 
cgit 


From 44a26877080825ab55080ad4ff9293a728bf5a98 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Tue, 13 Aug 2013 08:55:02 +0800
Subject: ARM: dts: imx6sl reuses imx6q sdma firmware

There is no imx6sl specific sdma firmware.  Instead, imx6sl reuses
imx6q sdma firmware.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6sl.dtsi | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
index c46651e4d966..9fec772a5390 100644
--- a/arch/arm/boot/dts/imx6sl.dtsi
+++ b/arch/arm/boot/dts/imx6sl.dtsi
@@ -619,7 +619,8 @@
 					 <&clks IMX6SL_CLK_SDMA>;
 				clock-names = "ipg", "ahb";
 				#dma-cells = <3>;
-				fsl,sdma-ram-script-name = "imx/sdma/sdma-imx6sl.bin";
+				/* imx6sl reuses imx6q sdma firmware */
+				fsl,sdma-ram-script-name = "imx/sdma/sdma-imx6q.bin";
 			};
 
 			pxp: pxp@020f0000 {
-- 
cgit 


From 727b8124f5c714c687d9aabbdfe7ca9593db735f Mon Sep 17 00:00:00 2001
From: Alexander Shiyan <shc_work@mail.ru>
Date: Wed, 21 Aug 2013 11:28:23 +0400
Subject: ARM: dts: i.MX51: Separate TXD/RXD and RTS/CTS pinmux entries for
 UARTs

RTS/CTS pins can be used for different purposes, so create separate
definitions for these pins.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx51-babbage.dts |  4 ++--
 arch/arm/boot/dts/imx51.dtsi        | 10 ++++++++++
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/imx51-babbage.dts b/arch/arm/boot/dts/imx51-babbage.dts
index 1d337d99ecd5..f13f33906dde 100644
--- a/arch/arm/boot/dts/imx51-babbage.dts
+++ b/arch/arm/boot/dts/imx51-babbage.dts
@@ -95,7 +95,7 @@
 
 &uart3 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_uart3_1>;
+	pinctrl-0 = <&pinctrl_uart3_1 &pinctrl_uart3_rtscts_1>;
 	fsl,uart-has-rtscts;
 	status = "okay";
 };
@@ -252,7 +252,7 @@
 
 &uart1 {
 	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_uart1_1>;
+	pinctrl-0 = <&pinctrl_uart1_1 &pinctrl_uart1_rtscts_1>;
 	fsl,uart-has-rtscts;
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/imx51.dtsi b/arch/arm/boot/dts/imx51.dtsi
index 54cee6517902..1db97deb64b6 100644
--- a/arch/arm/boot/dts/imx51.dtsi
+++ b/arch/arm/boot/dts/imx51.dtsi
@@ -747,6 +747,11 @@
 			fsl,pins = <
 				MX51_PAD_UART1_RXD__UART1_RXD 0x1c5
 				MX51_PAD_UART1_TXD__UART1_TXD 0x1c5
+			>;
+		};
+
+		pinctrl_uart1_rtscts_1: uart1rtscts-1 {
+			fsl,pins = <
 				MX51_PAD_UART1_RTS__UART1_RTS 0x1c5
 				MX51_PAD_UART1_CTS__UART1_CTS 0x1c5
 			>;
@@ -767,6 +772,11 @@
 			fsl,pins = <
 				MX51_PAD_EIM_D25__UART3_RXD 0x1c5
 				MX51_PAD_EIM_D26__UART3_TXD 0x1c5
+			>;
+		};
+
+		pinctrl_uart3_rtscts_1: uart3rtscts-1 {
+			fsl,pins = <
 				MX51_PAD_EIM_D27__UART3_RTS 0x1c5
 				MX51_PAD_EIM_D24__UART3_CTS 0x1c5
 			>;
-- 
cgit 


From da38ea33360f7c86fa7089a9e5c29102ee1790d6 Mon Sep 17 00:00:00 2001
From: Alexander Shiyan <shc_work@mail.ru>
Date: Wed, 21 Aug 2013 11:28:24 +0400
Subject: ARM: dts: i.MX51: Add IRAM devicetree node

This patch adds the missing IRAM devicetree node for i.MX51 CPUs.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx51.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/imx51.dtsi b/arch/arm/boot/dts/imx51.dtsi
index 1db97deb64b6..fdedb86d0f4e 100644
--- a/arch/arm/boot/dts/imx51.dtsi
+++ b/arch/arm/boot/dts/imx51.dtsi
@@ -86,6 +86,11 @@
 		interrupt-parent = <&tzic>;
 		ranges;
 
+		iram: iram@1ffe0000 {
+			compatible = "mmio-sram";
+			reg = <0x1ffe0000 0x20000>;
+		};
+
 		ipu: ipu@40000000 {
 			#crtc-cells = <1>;
 			compatible = "fsl,imx51-ipu";
-- 
cgit 


From ad15f08ccc74db52b74dd46bf4541bb430dfce76 Mon Sep 17 00:00:00 2001
From: Alexander Shiyan <shc_work@mail.ru>
Date: Wed, 21 Aug 2013 11:28:25 +0400
Subject: ARM: dts: i.MX51: Add W1 devicetree node

This patch adds the missing W1 (onewire) devicetree node for i.MX51 CPUs.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx51.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/imx51.dtsi b/arch/arm/boot/dts/imx51.dtsi
index fdedb86d0f4e..f4dcff3a9969 100644
--- a/arch/arm/boot/dts/imx51.dtsi
+++ b/arch/arm/boot/dts/imx51.dtsi
@@ -379,6 +379,14 @@
 				clocks = <&clks 107>;
 			};
 
+			owire: owire@83fa4000 {
+				compatible = "fsl,imx51-owire", "fsl,imx21-owire";
+				reg = <0x83fa4000 0x4000>;
+				interrupts = <88>;
+				clocks = <&clks 159>;
+				status = "disabled";
+			};
+
 			ecspi2: ecspi@83fac000 {
 				#address-cells = <1>;
 				#size-cells = <0>;
-- 
cgit 


From e9ac890a9309a75193a8f07c1de3b1d702353f28 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Wed, 21 Aug 2013 10:27:02 -0300
Subject: ARM: dts: imx6qdl-wandboard: Add usbotg support

Tested via g_ether:

$ modprobe g_ether
using random self ethernet address
using random host ethernet address
usb0: HOST MAC 42:b5:26:a9:48:21
usb0: MAC 36:a6:85:9b:9e:13
using random self ethernet address
using random host ethernet address
g_ether gadget: Ethernet Gadget, version: Memorial Day 2008
g_ether gadget: g_ether ready
$ g_ether gadget: high-speed config #1: CDC Ethernet (ECM)
$ ifconfig usb0 10.0.0.2

Then on the PC host side:

~$ sudo ifconfig usb0 10.0.0.1
~$ ping 10.0.0.2
PING 10.0.0.2 (10.0.0.2) 56(84) bytes of data.
64 bytes from 10.0.0.2: icmp_req=1 ttl=64 time=1.26 ms
64 bytes from 10.0.0.2: icmp_req=2 ttl=64 time=0.280 ms
64 bytes from 10.0.0.2: icmp_req=3 ttl=64 time=0.297 ms

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6qdl-wandboard.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/imx6qdl-wandboard.dtsi b/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
index a55113e65bcb..b46208016b8d 100644
--- a/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
@@ -115,6 +115,14 @@
 	status = "okay";
 };
 
+&usbotg {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usbotg_1>;
+	disable-over-current;
+	dr_mode = "peripheral";
+	status = "okay";
+};
+
 &usdhc1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_usdhc1_2>;
-- 
cgit 


From 69c02f9593b62a27ccee11293b21ad889a59cb5e Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Wed, 21 Aug 2013 10:27:03 -0300
Subject: ARM: dts: imx28-evk: Allow usb peripheral mode to work

Testing g_ether results in the following:

[    1.648022] using random self ethernet address
[    1.652778] using random host ethernet address
[    1.660504] usb0: HOST MAC c6:28:6a:81:dc:ff
[    1.666360] usb0: MAC 7e:81:54:16:c0:c6
[    1.670504] using random self ethernet address
[    1.675842] using random host ethernet address
[    1.682655] g_ether gadget: Ethernet Gadget, version: Memorial Day 2008
[    1.689332] g_ether gadget: g_ether ready
[    3.328974] irq 237: nobody cared (try booting with the "irqpoll" option)
[    3.335831] CPU: 0 PID: 1 Comm: swapper Not tainted 3.11.0-rc6-next-20130819 #1035
[    3.343500] [<c0014258>] (unwind_backtrace+0x0/0xf0) from [<c0011b20>] (show_stack+0x10/0x14)
[    3.352098] [<c0011b20>] (show_stack+0x10/0x14) from [<c006af4c>] (__report_bad_irq+0x20/0xc0)
[    3.360763] [<c006af4c>] (__report_bad_irq+0x20/0xc0) from [<c006b3f4>] (note_interrupt+0x1d4/0x234)
[    3.369943] [<c006b3f4>] (note_interrupt+0x1d4/0x234) from [<c0069754>] (handle_irq_event_percpu+0xc4/0x268)
[    3.379815] [<c0069754>] (handle_irq_event_percpu+0xc4/0x268) from [<c0069934>] (handle_irq_event+0x3c/0x5c)
[    3.389686] [<c0069934>] (handle_irq_event+0x3c/0x5c) from [<c006bb78>] (handle_level_irq+0x8c/0xe8)
[    3.398865] [<c006bb78>] (handle_level_irq+0x8c/0xe8) from [<c0068ff0>] (generic_handle_irq+0x20/0x30)
[    3.408213] [<c0068ff0>] (generic_handle_irq+0x20/0x30) from [<c000fc9c>] (handle_IRQ+0x30/0x84)
[    3.417040] [<c000fc9c>] (handle_IRQ+0x30/0x84) from [<c0012564>] (__irq_svc+0x44/0x54)
[    3.425094] [<c0012564>] (__irq_svc+0x44/0x54) from [<c0020244>] (__do_softirq+0x90/0x268)
[    3.433400] [<c0020244>] (__do_softirq+0x90/0x268) from [<c00207d4>] (irq_exit+0x9c/0xd8)
[    3.441619] [<c00207d4>] (irq_exit+0x9c/0xd8) from [<c000fca0>] (handle_IRQ+0x34/0x84)
[    3.449577] [<c000fca0>] (handle_IRQ+0x34/0x84) from [<c0012564>] (__irq_svc+0x44/0x54)
[    3.457629] [<c0012564>] (__irq_svc+0x44/0x54) from [<c04602b0>] (_raw_spin_unlock_irqrestore+0x34/0x44)
[    3.467164] [<c04602b0>] (_raw_spin_unlock_irqrestore+0x34/0x44) from [<c0348298>] (input_register_handler+0x98/0xb4)
[    3.477835] [<c0348298>] (input_register_handler+0x98/0xb4) from [<c064bc10>] (mousedev_init+0x30/0x60)
[    3.487275] [<c064bc10>] (mousedev_init+0x30/0x60) from [<c00088ac>] (do_one_initcall+0xe8/0x154)
[    3.496198] [<c00088ac>] (do_one_initcall+0xe8/0x154) from [<c062aabc>] (kernel_init_freeable+0xf0/0x1b4)
[    3.505810] [<c062aabc>] (kernel_init_freeable+0xf0/0x1b4) from [<c0456550>] (kernel_init+0x8/0xe4)
[    3.514899] [<c0456550>] (kernel_init+0x8/0xe4) from [<c000ee60>] (ret_from_fork+0x14/0x34)
[    3.523263] handlers:
[    3.525578] [<c0339d14>] ci_irq
[    3.528757] Disabling IRQ #237

Provide the USB0_ID pin in the usb0 node, so that g_ether can operate
correctly.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx28-evk.dts |  2 ++
 arch/arm/boot/dts/imx28.dtsi    | 10 ++++++++++
 2 files changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts
index 15715d921d14..8cb6b6acb27e 100644
--- a/arch/arm/boot/dts/imx28-evk.dts
+++ b/arch/arm/boot/dts/imx28-evk.dts
@@ -242,6 +242,8 @@
 
 	ahb@80080000 {
 		usb0: usb@80080000 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&usb0_id_pins_a>;
 			vbus-supply = <&reg_usb0_vbus>;
 			status = "okay";
 		};
diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
index 7363fded95ee..c596b6da3872 100644
--- a/arch/arm/boot/dts/imx28.dtsi
+++ b/arch/arm/boot/dts/imx28.dtsi
@@ -740,6 +740,16 @@
 					fsl,voltage = <1>;
 					fsl,pull-up = <0>;
 				};
+
+				usb0_id_pins_a: usb0id@0 {
+					reg = <0>;
+					fsl,pinmux-ids = <
+						0x3071 /* MX28_PAD_AUART1_RTS__USB0_ID */
+					>;
+					fsl,drive-strength = <2>;
+					fsl,voltage = <1>;
+					fsl,pull-up = <1>;
+				};
 			};
 
 			digctl: digctl@8001c000 {
-- 
cgit 


From d39a5834dca4d3331515e3d622768a8a33e408c1 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Wed, 21 Aug 2013 10:27:04 -0300
Subject: ARM: dts: imx53-qsb: Allow usb peripheral mode to work

Trying to use the usb otg port on mx53qsb results in the following error:

$ modprobe g_ether
using random self ethernet address
using random host ethernet address
usb0: HOST MAC 52:0f:8a:1e:aa:09
usb0: MAC de:f3:70:d8:6c:62
using random self ethernet address
using random host ethernet address
g_ether gadget: Ethernet Gadget, version: Memorial Day 2008
g_ether gadget: g_ether ready

(Connect the USB cable)

$ ci_hdrc ci_hdrc.0: remove, state 4
usb usb1: USB disconnect, device number 1
ci_hdrc ci_hdrc.0: USB bus 1 deregistered
ci_hdrc ci_hdrc.0: timeout waiting for 00000800 in 11

USB otg port goes to connector J3 (mini USB) and also to the USB combo (J2).

As mx53qsb does not provide a USB ID pin, pass the dr_mode as 'peripheral' so
that we can have usb device working.

Tested via g_ether.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx53-qsb.dts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx53-qsb.dts b/arch/arm/boot/dts/imx53-qsb.dts
index e97ddae09d74..94597c3c2eb6 100644
--- a/arch/arm/boot/dts/imx53-qsb.dts
+++ b/arch/arm/boot/dts/imx53-qsb.dts
@@ -318,5 +318,6 @@
 };
 
 &usbotg {
-       status = "okay";
+	dr_mode = "peripheral";
+	status = "okay";
 };
-- 
cgit 


From 2422d437db921ffe37263ed71686d06ab5ece532 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Tue, 27 Aug 2013 23:33:36 -0300
Subject: ARM: dts: imx6q-sabrelite: Put the nodes in alphabetical order

Put the nodes in alphabetical order so that further node additions can be better
organized.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6q-sabrelite.dts | 78 +++++++++++++++++------------------
 1 file changed, 39 insertions(+), 39 deletions(-)

diff --git a/arch/arm/boot/dts/imx6q-sabrelite.dts b/arch/arm/boot/dts/imx6q-sabrelite.dts
index 3530280f5150..b96a72ee5297 100644
--- a/arch/arm/boot/dts/imx6q-sabrelite.dts
+++ b/arch/arm/boot/dts/imx6q-sabrelite.dts
@@ -65,8 +65,10 @@
 	};
 };
 
-&sata {
+&audmux {
 	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_audmux_1>;
 };
 
 &ecspi1 {
@@ -83,11 +85,29 @@
 	};
 };
 
-&ssi1 {
-	fsl,mode = "i2s-slave";
+&fec {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_enet_1>;
+	phy-mode = "rgmii";
+	phy-reset-gpios = <&gpio3 23 0>;
 	status = "okay";
 };
 
+&i2c1 {
+	status = "okay";
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c1_1>;
+
+	codec: sgtl5000@0a {
+		compatible = "fsl,sgtl5000";
+		reg = <0x0a>;
+		clocks = <&clks 201>;
+		VDDA-supply = <&reg_2p5v>;
+		VDDIO-supply = <&reg_3p3v>;
+	};
+};
+
 &iomuxc {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_hog>;
@@ -108,23 +128,30 @@
 	};
 };
 
-&usbotg {
-	vbus-supply = <&reg_usb_otg_vbus>;
-	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_usbotg_1>;
-	disable-over-current;
+&sata {
+	status = "okay";
+};
+
+&ssi1 {
+	fsl,mode = "i2s-slave";
+	status = "okay";
+};
+
+&uart2 {
 	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2_1>;
 };
 
 &usbh1 {
 	status = "okay";
 };
 
-&fec {
+&usbotg {
+	vbus-supply = <&reg_usb_otg_vbus>;
 	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_enet_1>;
-	phy-mode = "rgmii";
-	phy-reset-gpios = <&gpio3 23 0>;
+	pinctrl-0 = <&pinctrl_usbotg_1>;
+	disable-over-current;
 	status = "okay";
 };
 
@@ -145,30 +172,3 @@
 	vmmc-supply = <&reg_3p3v>;
 	status = "okay";
 };
-
-&audmux {
-	status = "okay";
-	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_audmux_1>;
-};
-
-&uart2 {
-	status = "okay";
-	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_uart2_1>;
-};
-
-&i2c1 {
-	status = "okay";
-	clock-frequency = <100000>;
-	pinctrl-names = "default";
-	pinctrl-0 = <&pinctrl_i2c1_1>;
-
-	codec: sgtl5000@0a {
-		compatible = "fsl,sgtl5000";
-		reg = <0x0a>;
-		clocks = <&clks 201>;
-		VDDA-supply = <&reg_2p5v>;
-		VDDIO-supply = <&reg_3p3v>;
-	};
-};
-- 
cgit 


From a09644b1236137c4a8679c542a2ec69da4deb1a5 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Tue, 27 Aug 2013 23:33:37 -0300
Subject: ARM: dts: imx6q-sabrelite: Add LVDS support

imx6q-sabrelite board can be connected to a 1024x768 Hannstar LVDS panel.

Add support for it.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6q-sabrelite.dts | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/arch/arm/boot/dts/imx6q-sabrelite.dts b/arch/arm/boot/dts/imx6q-sabrelite.dts
index b96a72ee5297..e1c1777a80d5 100644
--- a/arch/arm/boot/dts/imx6q-sabrelite.dts
+++ b/arch/arm/boot/dts/imx6q-sabrelite.dts
@@ -128,6 +128,31 @@
 	};
 };
 
+&ldb {
+	status = "okay";
+
+	lvds-channel@0 {
+		fsl,data-mapping = "spwg";
+		fsl,data-width = <18>;
+		status = "okay";
+
+		display-timings {
+			native-mode = <&timing0>;
+			timing0: hsd100pxn1 {
+				clock-frequency = <65000000>;
+				hactive = <1024>;
+				vactive = <768>;
+				hback-porch = <220>;
+				hfront-porch = <40>;
+				vback-porch = <21>;
+				vfront-porch = <7>;
+				hsync-len = <60>;
+				vsync-len = <10>;
+			};
+		};
+	};
+};
+
 &sata {
 	status = "okay";
 };
-- 
cgit 


From d7a9d8e2ab0e35a96b8f13785c5fb05654d91dde Mon Sep 17 00:00:00 2001
From: Chao Fu <B44548@freescale.com>
Date: Fri, 30 Aug 2013 11:19:48 +0800
Subject: ARM: dts: vf610: Add DSPI nodes

Add Freescale DSPI node into vf610 dts.

Signed-off-by: Chao Fu <b44548@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/vf610.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/vf610.dtsi b/arch/arm/boot/dts/vf610.dtsi
index 67d929cf9804..d31ce1b4a7b0 100644
--- a/arch/arm/boot/dts/vf610.dtsi
+++ b/arch/arm/boot/dts/vf610.dtsi
@@ -123,6 +123,18 @@
 				status = "disabled";
 			};
 
+			dspi0: dspi0@4002c000 {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				compatible = "fsl,vf610-dspi";
+				reg = <0x4002c000 0x1000>;
+				interrupts = <0 67 0x04>;
+				clocks = <&clks VF610_CLK_DSPI0>;
+				clock-names = "dspi";
+				spi-num-chipselects = <5>;
+				status = "disabled";
+			};
+
 			sai2: sai@40031000 {
 				compatible = "fsl,vf610-sai";
 				reg = <0x40031000 0x1000>;
-- 
cgit 


From dc03a50f940db68250a3eadc6fc98bfe5a7d850a Mon Sep 17 00:00:00 2001
From: Chao Fu <B44548@freescale.com>
Date: Fri, 30 Aug 2013 11:19:49 +0800
Subject: ARM: dts: vf610-twr: Enable DSPI0 devices and Flash at26df081a

This patch enables DSPI0 and at26df081a flash device for Vybrid VF610
TOWER board.

Signed-off-by: Chao Fu <b44548@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/vf610-twr.dts | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm/boot/dts/vf610-twr.dts b/arch/arm/boot/dts/vf610-twr.dts
index 1a58678b93fa..c8047ca16501 100644
--- a/arch/arm/boot/dts/vf610-twr.dts
+++ b/arch/arm/boot/dts/vf610-twr.dts
@@ -36,6 +36,23 @@
 
 };
 
+&dspi0 {
+	bus-num = <0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_dspi0_1>;
+	status = "okay";
+
+	sflash: at26df081a@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "atmel,at26df081a";
+		spi-max-frequency = <16000000>;
+		spi-cpol;
+		spi-cpha;
+		reg = <0>;
+	};
+};
+
 &fec0 {
 	phy-mode = "rmii";
 	pinctrl-names = "default";
-- 
cgit 


From c9d96df207a2caadfb521c7b6108ef9172f5bf55 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 2 Sep 2013 23:51:41 -0300
Subject: ARM: imx6qdl-wandboard: Add spdif support

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Reviewed-by: Nicolin Chen <b42378@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6qdl-wandboard.dtsi | 13 +++++++++++++
 arch/arm/boot/dts/imx6qdl.dtsi           | 21 +++++++++++++++++++++
 2 files changed, 34 insertions(+)

diff --git a/arch/arm/boot/dts/imx6qdl-wandboard.dtsi b/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
index b46208016b8d..df42d3ccb70e 100644
--- a/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
@@ -43,6 +43,13 @@
 		mux-int-port = <1>;
 		mux-ext-port = <3>;
 	};
+
+	sound-spdif {
+		compatible = "fsl,imx-audio-spdif";
+		model = "imx-spdif";
+		spdif-controller = <&spdif>;
+		spdif-out;
+	};
 };
 
 &audmux {
@@ -93,6 +100,12 @@
 	status = "okay";
 };
 
+&spdif {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spdif_3>;
+	status = "okay";
+};
+
 &ssi1 {
 	fsl,mode = "i2s-slave";
 	status = "okay";
diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
index ccd55c2fdb67..2a3abf822378 100644
--- a/arch/arm/boot/dts/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/imx6qdl.dtsi
@@ -136,8 +136,23 @@
 				ranges;
 
 				spdif: spdif@02004000 {
+					compatible = "fsl,imx35-spdif";
 					reg = <0x02004000 0x4000>;
 					interrupts = <0 52 0x04>;
+					dmas = <&sdma 14 18 0>,
+					       <&sdma 15 18 0>;
+					dma-names = "rx", "tx";
+					clocks = <&clks 197>, <&clks 3>,
+						 <&clks 197>, <&clks 107>,
+						 <&clks 0>,   <&clks 118>,
+						 <&clks 62>,  <&clks 139>,
+						 <&clks 0>;
+					clock-names = "core",  "rxtx0",
+						      "rxtx1", "rxtx2",
+						      "rxtx3", "rxtx4",
+						      "rxtx5", "rxtx6",
+						      "rxtx7";
+					status = "disabled";
 				};
 
 				ecspi1: ecspi@02008000 {
@@ -1010,6 +1025,12 @@
 							MX6QDL_PAD_GPIO_17__SPDIF_OUT 0x1b0b0
 						>;
 					};
+
+					pinctrl_spdif_3: spdifgrp-3 {
+						fsl,pins = <
+							MX6QDL_PAD_ENET_RXD0__SPDIF_OUT 0x1b0b0
+						>;
+					};
 				};
 
 				uart1 {
-- 
cgit 


From e03d10f98956c56d0ef92cb9e9f6cafcdd19bee2 Mon Sep 17 00:00:00 2001
From: Fugang Duan <B38611@freescale.com>
Date: Tue, 3 Sep 2013 12:26:22 +0800
Subject: ARM: dts: add iomuxc-gpr device node for imx6sl

Add iomuxc gpr device node for imx6sl.

Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6sl.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
index 9fec772a5390..eda00e88f22f 100644
--- a/arch/arm/boot/dts/imx6sl.dtsi
+++ b/arch/arm/boot/dts/imx6sl.dtsi
@@ -528,6 +528,11 @@
 				interrupts = <0 89 0x04>;
 			};
 
+			gpr: iomuxc-gpr@020e0000 {
+				compatible = "fsl,imx6sl-iomuxc-gpr", "syscon";
+				reg = <0x020e0000 0x38>;
+			};
+
 			iomuxc: iomuxc@020e0000 {
 				compatible = "fsl,imx6sl-iomuxc";
 				reg = <0x020e0000 0x4000>;
-- 
cgit 


From 6022232b5405d9a917459e1590f0732517f83d09 Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Tue, 10 Sep 2013 10:23:16 +0800
Subject: ARM: imx: mx6sl-evk: Enable USB function

Enable USB function for OTG 1 and OTG 2 at mx6sololite evk.
Besides, fix the wrong interrupt number for OTG2 and host 1.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6sl-evk.dts | 39 +++++++++++++++++++++++++
 arch/arm/boot/dts/imx6sl.dtsi    | 62 ++++++++++++++++++++++++++++++++++++++--
 2 files changed, 99 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/imx6sl-evk.dts b/arch/arm/boot/dts/imx6sl-evk.dts
index 2886a590823d..36ea01e308d3 100644
--- a/arch/arm/boot/dts/imx6sl-evk.dts
+++ b/arch/arm/boot/dts/imx6sl-evk.dts
@@ -17,6 +17,28 @@
 	memory {
 		reg = <0x80000000 0x40000000>;
 	};
+
+	regulators {
+		compatible = "simple-bus";
+
+		reg_usb_otg1_vbus: usb_otg1_vbus {
+			compatible = "regulator-fixed";
+			regulator-name = "usb_otg1_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			gpio = <&gpio4 0 0>;
+			enable-active-high;
+		};
+
+		reg_usb_otg2_vbus: usb_otg2_vbus {
+			compatible = "regulator-fixed";
+			regulator-name = "usb_otg2_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			gpio = <&gpio4 2 0>;
+			enable-active-high;
+		};
+	};
 };
 
 &fec {
@@ -38,6 +60,8 @@
 				MX6SL_PAD_SD2_DAT7__GPIO5_IO00    0x17059
 				MX6SL_PAD_SD2_DAT6__GPIO4_IO29    0x17059
 				MX6SL_PAD_REF_CLK_32K__GPIO3_IO22 0x17059
+				MX6SL_PAD_KEY_COL4__GPIO4_IO00	0x80000000
+				MX6SL_PAD_KEY_COL5__GPIO4_IO02	0x80000000
 			>;
 		};
 	};
@@ -49,6 +73,21 @@
 	status = "okay";
 };
 
+&usbotg1 {
+	vbus-supply = <&reg_usb_otg1_vbus>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usbotg1_1>;
+	disable-over-current;
+	status = "okay";
+};
+
+&usbotg2 {
+	vbus-supply = <&reg_usb_otg2_vbus>;
+	dr_mode = "host";
+	disable-over-current;
+	status = "okay";
+};
+
 &usdhc1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_usdhc1_1>;
diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
index eda00e88f22f..bcdbc6cb50e9 100644
--- a/arch/arm/boot/dts/imx6sl.dtsi
+++ b/arch/arm/boot/dts/imx6sl.dtsi
@@ -562,6 +562,64 @@
 					};
 				};
 
+				usbotg1 {
+					pinctrl_usbotg1_1: usbotg1grp-1 {
+						fsl,pins = <
+							MX6SL_PAD_EPDC_PWRCOM__USB_OTG1_ID 0x17059
+						>;
+					};
+
+					pinctrl_usbotg1_2: usbotg1grp-2 {
+						fsl,pins = <
+							MX6SL_PAD_FEC_RXD0__USB_OTG1_ID 0x17059
+						>;
+					};
+
+					pinctrl_usbotg1_3: usbotg1grp-3 {
+						fsl,pins = <
+							MX6SL_PAD_LCD_DAT1__USB_OTG1_ID 0x17059
+						>;
+					};
+
+					pinctrl_usbotg1_4: usbotg1grp-4 {
+						fsl,pins = <
+							MX6SL_PAD_REF_CLK_32K__USB_OTG1_ID 0x17059
+						>;
+					};
+
+					pinctrl_usbotg1_5: usbotg1grp-5 {
+						fsl,pins = <
+							MX6SL_PAD_SD3_DAT0__USB_OTG1_ID 0x17059
+						>;
+					};
+				};
+
+				usbotg2 {
+					pinctrl_usbotg2_1: usbotg2grp-1 {
+						fsl,pins = <
+							MX6SL_PAD_ECSPI1_SCLK__USB_OTG2_OC 0x17059
+						>;
+					};
+
+					pinctrl_usbotg2_2: usbotg2grp-2 {
+						fsl,pins = <
+							MX6SL_PAD_ECSPI2_SCLK__USB_OTG2_OC 0x17059
+						>;
+					};
+
+					pinctrl_usbotg2_3: usbotg2grp-3 {
+						fsl,pins = <
+							MX6SL_PAD_KEY_ROW5__USB_OTG2_OC 0x17059
+						>;
+					};
+
+					pinctrl_usbotg2_4: usbotg2grp-4 {
+						fsl,pins = <
+							MX6SL_PAD_SD3_DAT2__USB_OTG2_OC 0x17059
+						>;
+					};
+				};
+
 				usdhc1 {
 					pinctrl_usdhc1_1: usdhc1grp-1 {
 						fsl,pins = <
@@ -669,7 +727,7 @@
 			usbotg2: usb@02184200 {
 				compatible = "fsl,imx6sl-usb", "fsl,imx27-usb";
 				reg = <0x02184200 0x200>;
-				interrupts = <0 40 0x04>;
+				interrupts = <0 42 0x04>;
 				clocks = <&clks IMX6SL_CLK_USBOH3>;
 				fsl,usbphy = <&usbphy2>;
 				fsl,usbmisc = <&usbmisc 1>;
@@ -679,7 +737,7 @@
 			usbh: usb@02184400 {
 				compatible = "fsl,imx6sl-usb", "fsl,imx27-usb";
 				reg = <0x02184400 0x200>;
-				interrupts = <0 42 0x04>;
+				interrupts = <0 40 0x04>;
 				clocks = <&clks IMX6SL_CLK_USBOH3>;
 				fsl,usbmisc = <&usbmisc 2>;
 				status = "disabled";
-- 
cgit 


From 640a7f3f0fd54dd12bd20c43e32da0ff3993bf05 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Fri, 13 Sep 2013 18:13:00 -0300
Subject: ARM: dts: imx6sl: Add spi aliases

Add spi aliases.

While at it, keep the aliases entries sorted.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6sl.dtsi | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
index bcdbc6cb50e9..f295290d29fc 100644
--- a/arch/arm/boot/dts/imx6sl.dtsi
+++ b/arch/arm/boot/dts/imx6sl.dtsi
@@ -13,16 +13,20 @@
 
 / {
 	aliases {
-		serial0 = &uart1;
-		serial1 = &uart2;
-		serial2 = &uart3;
-		serial3 = &uart4;
-		serial4 = &uart5;
 		gpio0 = &gpio1;
 		gpio1 = &gpio2;
 		gpio2 = &gpio3;
 		gpio3 = &gpio4;
 		gpio4 = &gpio5;
+		serial0 = &uart1;
+		serial1 = &uart2;
+		serial2 = &uart3;
+		serial3 = &uart4;
+		serial4 = &uart5;
+		spi0 = &ecspi1;
+		spi1 = &ecspi2;
+		spi2 = &ecspi3;
+		spi3 = &ecspi4;
 	};
 
 	cpus {
-- 
cgit 


From 93e2ca0285da7eb9fe800663bbaa23cc74e0372b Mon Sep 17 00:00:00 2001
From: Dong Aisheng <b29396@freescale.com>
Date: Fri, 13 Sep 2013 19:11:38 +0800
Subject: ARM: dts: imx6qdl: add uhs pinctrl state for usdhc3

This is needed for supporting ultra high speed cards like SD3.0 cards.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6qdl-sabreauto.dtsi |  5 ++++-
 arch/arm/boot/dts/imx6qdl.dtsi           | 30 ++++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
index 1cbbc5160d27..ff6f1e8f2dd9 100644
--- a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
@@ -54,6 +54,7 @@
 			fsl,pins = <
 				MX6QDL_PAD_NANDF_CS2__GPIO6_IO15 0x80000000
 				MX6QDL_PAD_SD2_DAT2__GPIO1_IO13  0x80000000
+				MX6QDL_PAD_GPIO_18__SD3_VSELECT 0x17059
 			>;
 		};
 	};
@@ -74,8 +75,10 @@
 };
 
 &usdhc3 {
-	pinctrl-names = "default";
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
 	pinctrl-0 = <&pinctrl_usdhc3_1>;
+	pinctrl-1 = <&pinctrl_usdhc3_1_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc3_1_200mhz>;
 	cd-gpios = <&gpio6 15 0>;
 	wp-gpios = <&gpio1 13 0>;
 	status = "okay";
diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
index 2a3abf822378..ef51342be314 100644
--- a/arch/arm/boot/dts/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/imx6qdl.dtsi
@@ -1205,6 +1205,36 @@
 						>;
 					};
 
+					pinctrl_usdhc3_1_100mhz: usdhc3grp-1-100mhz { /* 100Mhz */
+						fsl,pins = <
+							MX6QDL_PAD_SD3_CMD__SD3_CMD 0x170b9
+							MX6QDL_PAD_SD3_CLK__SD3_CLK 0x100b9
+							MX6QDL_PAD_SD3_DAT0__SD3_DATA0 0x170b9
+							MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x170b9
+							MX6QDL_PAD_SD3_DAT2__SD3_DATA2 0x170b9
+							MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x170b9
+							MX6QDL_PAD_SD3_DAT4__SD3_DATA4 0x170b9
+							MX6QDL_PAD_SD3_DAT5__SD3_DATA5 0x170b9
+							MX6QDL_PAD_SD3_DAT6__SD3_DATA6 0x170b9
+							MX6QDL_PAD_SD3_DAT7__SD3_DATA7 0x170b9
+						>;
+					};
+
+					pinctrl_usdhc3_1_200mhz: usdhc3grp-1-200mhz { /* 200Mhz */
+						fsl,pins = <
+							MX6QDL_PAD_SD3_CMD__SD3_CMD 0x170f9
+							MX6QDL_PAD_SD3_CLK__SD3_CLK 0x100f9
+							MX6QDL_PAD_SD3_DAT0__SD3_DATA0 0x170f9
+							MX6QDL_PAD_SD3_DAT1__SD3_DATA1 0x170f9
+							MX6QDL_PAD_SD3_DAT2__SD3_DATA2 0x170f9
+							MX6QDL_PAD_SD3_DAT3__SD3_DATA3 0x170f9
+							MX6QDL_PAD_SD3_DAT4__SD3_DATA4 0x170f9
+							MX6QDL_PAD_SD3_DAT5__SD3_DATA5 0x170f9
+							MX6QDL_PAD_SD3_DAT6__SD3_DATA6 0x170f9
+							MX6QDL_PAD_SD3_DAT7__SD3_DATA7 0x170f9
+						>;
+					};
+
 					pinctrl_usdhc3_2: usdhc3grp-2 {
 						fsl,pins = <
 							MX6QDL_PAD_SD3_CMD__SD3_CMD    0x17059
-- 
cgit 


From e367817a0ae7065a60815933df0980e53b14c517 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Tue, 17 Sep 2013 13:46:23 -0300
Subject: ARM: dts: imx6qdl-sabresd: SDHC ports are 8 bit-wide

On imx6qdl-sabresd the SDHC2 and SDHC3 are 8 bit-wide, so pass the bus-width
property to reflect that.

Otherwise the mmc driver will operate with the default bus-width value of 4.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6qdl-sabresd.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
index 39eafc222a2e..64e454bcc4a3 100644
--- a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
@@ -229,6 +229,7 @@
 &usdhc2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_usdhc2_1>;
+	bus-width = <8>;
 	cd-gpios = <&gpio2 2 0>;
 	wp-gpios = <&gpio2 3 0>;
 	status = "okay";
@@ -237,6 +238,7 @@
 &usdhc3 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_usdhc3_1>;
+	bus-width = <8>;
 	cd-gpios = <&gpio2 0 0>;
 	wp-gpios = <&gpio2 1 0>;
 	status = "okay";
-- 
cgit 


From 289604df397e0d5dbe71673f8a15bfc5c8c0079f Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Tue, 17 Sep 2013 16:18:38 -0300
Subject: ARM: dts: imx28-evk: Enable touchscreen support

Provide 'lradc-touchscreen-wires' property to the LRADC driver, so that
touchscreen can be functional.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx28-evk.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts
index 8cb6b6acb27e..5f9c0a0dcc5a 100644
--- a/arch/arm/boot/dts/imx28-evk.dts
+++ b/arch/arm/boot/dts/imx28-evk.dts
@@ -182,6 +182,7 @@
 			};
 
 			lradc@80050000 {
+				fsl,lradc-touchscreen-wires = <4>;
 				status = "okay";
 			};
 
-- 
cgit 


From ff04b40152d04260f04664cecae4194f4c6d399d Mon Sep 17 00:00:00 2001
From: Lothar Waßmann <LW@KARO-electronics.de>
Date: Thu, 19 Sep 2013 08:59:47 +0200
Subject: ARM: dts: mxs: add pinctrl header files
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Remove the list of possible pin configurations from the documentation
file and create header files containing those definitions.
This eliminates the need for error-prone manual lookup of those values
in the documentation and guarantees consistency between the human
readable representation of the pad function in the .dts file and the
actual binary value used in DT.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 .../bindings/pinctrl/fsl,mxs-pinctrl.txt           | 859 +--------------------
 arch/arm/boot/dts/imx23-pinfunc.h                  | 333 ++++++++
 arch/arm/boot/dts/imx28-pinfunc.h                  | 506 ++++++++++++
 arch/arm/boot/dts/mxs-pinfunc.h                    |  31 +
 4 files changed, 902 insertions(+), 827 deletions(-)
 create mode 100644 arch/arm/boot/dts/imx23-pinfunc.h
 create mode 100644 arch/arm/boot/dts/imx28-pinfunc.h
 create mode 100644 arch/arm/boot/dts/mxs-pinfunc.h

diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,mxs-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/fsl,mxs-pinctrl.txt
index 3077370c89af..1e70a8aff260 100644
--- a/Documentation/devicetree/bindings/pinctrl/fsl,mxs-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/fsl,mxs-pinctrl.txt
@@ -59,16 +59,16 @@ Required subnode-properties:
 
 Optional subnode-properties:
 - fsl,drive-strength: Integer.
-    0: 4 mA
-    1: 8 mA
-    2: 12 mA
-    3: 16 mA
+    0: MXS_DRIVE_4mA
+    1: MXS_DRIVE_8mA
+    2: MXS_DRIVE_12mA
+    3: MXS_DRIVE_16mA
 - fsl,voltage: Integer.
-    0: 1.8 V
-    1: 3.3 V
+    0: MXS_VOLTAGE_LOW  - 1.8 V
+    1: MXS_VOLTAGE_HIGH - 3.3 V
 - fsl,pull-up: Integer.
-    0: Disable the internal pull-up
-    1: Enable the internal pull-up
+    0: MXS_PULL_DISABLE - Disable the internal pull-up
+    1: MXS_PULL_ENABLE  - Enable the internal pull-up
 
 Note that when enabling the pull-up, the internal pad keeper gets disabled.
 Also, some pins doesn't have a pull up, in that case, setting the fsl,pull-up
@@ -85,23 +85,32 @@ pinctrl@80018000 {
 	mmc0_8bit_pins_a: mmc0-8bit@0 {
 		reg = <0>;
 		fsl,pinmux-ids = <
-			0x2000 0x2010 0x2020 0x2030
-			0x2040 0x2050 0x2060 0x2070
-			0x2080 0x2090 0x20a0>;
-		fsl,drive-strength = <1>;
-		fsl,voltage = <1>;
-		fsl,pull-up = <1>;
+			MX28_PAD_SSP0_DATA0__SSP0_D0
+			MX28_PAD_SSP0_DATA1__SSP0_D1
+			MX28_PAD_SSP0_DATA2__SSP0_D2
+			MX28_PAD_SSP0_DATA3__SSP0_D3
+			MX28_PAD_SSP0_DATA4__SSP0_D4
+			MX28_PAD_SSP0_DATA5__SSP0_D5
+			MX28_PAD_SSP0_DATA6__SSP0_D6
+			MX28_PAD_SSP0_DATA7__SSP0_D7
+			MX28_PAD_SSP0_CMD__SSP0_CMD
+			MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT
+			MX28_PAD_SSP0_SCK__SSP0_SCK
+		>;
+		fsl,drive-strength = <MXS_DRIVE_4mA>;
+		fsl,voltage = <MXS_VOLTAGE_HIGH>;
+		fsl,pull-up = <MXS_PULL_ENABLE>;
 	};
 
 	mmc_cd_cfg: mmc-cd-cfg {
-		fsl,pinmux-ids = <0x2090>;
-		fsl,pull-up = <0>;
+		fsl,pinmux-ids = <MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT>;
+		fsl,pull-up = <MXS_PULL_DISABLE>;
 	};
 
 	mmc_sck_cfg: mmc-sck-cfg {
-		fsl,pinmux-ids = <0x20a0>;
-		fsl,drive-strength = <2>;
-		fsl,pull-up = <0>;
+		fsl,pinmux-ids = <MX28_PAD_SSP0_SCK__SSP0_SCK>;
+		fsl,drive-strength = <MXS_DRIVE_12mA>;
+		fsl,pull-up = <MXS_PULL_DISABLE>;
 	};
 };
 
@@ -112,811 +121,7 @@ adjusting the configuration for pins card-detection and clock from what group
 node mmc0-8bit defines.  Only the configuration properties to be adjusted need
 to be listed in the config nodes.
 
-Valid values for i.MX28 pinmux-id:
-
-pinmux						id
-------						--
-MX28_PAD_GPMI_D00__GPMI_D0			0x0000
-MX28_PAD_GPMI_D01__GPMI_D1			0x0010
-MX28_PAD_GPMI_D02__GPMI_D2			0x0020
-MX28_PAD_GPMI_D03__GPMI_D3			0x0030
-MX28_PAD_GPMI_D04__GPMI_D4			0x0040
-MX28_PAD_GPMI_D05__GPMI_D5			0x0050
-MX28_PAD_GPMI_D06__GPMI_D6			0x0060
-MX28_PAD_GPMI_D07__GPMI_D7			0x0070
-MX28_PAD_GPMI_CE0N__GPMI_CE0N			0x0100
-MX28_PAD_GPMI_CE1N__GPMI_CE1N			0x0110
-MX28_PAD_GPMI_CE2N__GPMI_CE2N			0x0120
-MX28_PAD_GPMI_CE3N__GPMI_CE3N			0x0130
-MX28_PAD_GPMI_RDY0__GPMI_READY0			0x0140
-MX28_PAD_GPMI_RDY1__GPMI_READY1			0x0150
-MX28_PAD_GPMI_RDY2__GPMI_READY2			0x0160
-MX28_PAD_GPMI_RDY3__GPMI_READY3			0x0170
-MX28_PAD_GPMI_RDN__GPMI_RDN			0x0180
-MX28_PAD_GPMI_WRN__GPMI_WRN			0x0190
-MX28_PAD_GPMI_ALE__GPMI_ALE			0x01a0
-MX28_PAD_GPMI_CLE__GPMI_CLE			0x01b0
-MX28_PAD_GPMI_RESETN__GPMI_RESETN		0x01c0
-MX28_PAD_LCD_D00__LCD_D0			0x1000
-MX28_PAD_LCD_D01__LCD_D1			0x1010
-MX28_PAD_LCD_D02__LCD_D2			0x1020
-MX28_PAD_LCD_D03__LCD_D3			0x1030
-MX28_PAD_LCD_D04__LCD_D4			0x1040
-MX28_PAD_LCD_D05__LCD_D5			0x1050
-MX28_PAD_LCD_D06__LCD_D6			0x1060
-MX28_PAD_LCD_D07__LCD_D7			0x1070
-MX28_PAD_LCD_D08__LCD_D8			0x1080
-MX28_PAD_LCD_D09__LCD_D9			0x1090
-MX28_PAD_LCD_D10__LCD_D10			0x10a0
-MX28_PAD_LCD_D11__LCD_D11			0x10b0
-MX28_PAD_LCD_D12__LCD_D12			0x10c0
-MX28_PAD_LCD_D13__LCD_D13			0x10d0
-MX28_PAD_LCD_D14__LCD_D14			0x10e0
-MX28_PAD_LCD_D15__LCD_D15			0x10f0
-MX28_PAD_LCD_D16__LCD_D16			0x1100
-MX28_PAD_LCD_D17__LCD_D17			0x1110
-MX28_PAD_LCD_D18__LCD_D18			0x1120
-MX28_PAD_LCD_D19__LCD_D19			0x1130
-MX28_PAD_LCD_D20__LCD_D20			0x1140
-MX28_PAD_LCD_D21__LCD_D21			0x1150
-MX28_PAD_LCD_D22__LCD_D22			0x1160
-MX28_PAD_LCD_D23__LCD_D23			0x1170
-MX28_PAD_LCD_RD_E__LCD_RD_E			0x1180
-MX28_PAD_LCD_WR_RWN__LCD_WR_RWN			0x1190
-MX28_PAD_LCD_RS__LCD_RS				0x11a0
-MX28_PAD_LCD_CS__LCD_CS				0x11b0
-MX28_PAD_LCD_VSYNC__LCD_VSYNC			0x11c0
-MX28_PAD_LCD_HSYNC__LCD_HSYNC			0x11d0
-MX28_PAD_LCD_DOTCLK__LCD_DOTCLK			0x11e0
-MX28_PAD_LCD_ENABLE__LCD_ENABLE			0x11f0
-MX28_PAD_SSP0_DATA0__SSP0_D0			0x2000
-MX28_PAD_SSP0_DATA1__SSP0_D1			0x2010
-MX28_PAD_SSP0_DATA2__SSP0_D2			0x2020
-MX28_PAD_SSP0_DATA3__SSP0_D3			0x2030
-MX28_PAD_SSP0_DATA4__SSP0_D4			0x2040
-MX28_PAD_SSP0_DATA5__SSP0_D5			0x2050
-MX28_PAD_SSP0_DATA6__SSP0_D6			0x2060
-MX28_PAD_SSP0_DATA7__SSP0_D7			0x2070
-MX28_PAD_SSP0_CMD__SSP0_CMD			0x2080
-MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT		0x2090
-MX28_PAD_SSP0_SCK__SSP0_SCK			0x20a0
-MX28_PAD_SSP1_SCK__SSP1_SCK			0x20c0
-MX28_PAD_SSP1_CMD__SSP1_CMD			0x20d0
-MX28_PAD_SSP1_DATA0__SSP1_D0			0x20e0
-MX28_PAD_SSP1_DATA3__SSP1_D3			0x20f0
-MX28_PAD_SSP2_SCK__SSP2_SCK			0x2100
-MX28_PAD_SSP2_MOSI__SSP2_CMD			0x2110
-MX28_PAD_SSP2_MISO__SSP2_D0			0x2120
-MX28_PAD_SSP2_SS0__SSP2_D3			0x2130
-MX28_PAD_SSP2_SS1__SSP2_D4			0x2140
-MX28_PAD_SSP2_SS2__SSP2_D5			0x2150
-MX28_PAD_SSP3_SCK__SSP3_SCK			0x2180
-MX28_PAD_SSP3_MOSI__SSP3_CMD			0x2190
-MX28_PAD_SSP3_MISO__SSP3_D0			0x21a0
-MX28_PAD_SSP3_SS0__SSP3_D3			0x21b0
-MX28_PAD_AUART0_RX__AUART0_RX			0x3000
-MX28_PAD_AUART0_TX__AUART0_TX			0x3010
-MX28_PAD_AUART0_CTS__AUART0_CTS			0x3020
-MX28_PAD_AUART0_RTS__AUART0_RTS			0x3030
-MX28_PAD_AUART1_RX__AUART1_RX			0x3040
-MX28_PAD_AUART1_TX__AUART1_TX			0x3050
-MX28_PAD_AUART1_CTS__AUART1_CTS			0x3060
-MX28_PAD_AUART1_RTS__AUART1_RTS			0x3070
-MX28_PAD_AUART2_RX__AUART2_RX			0x3080
-MX28_PAD_AUART2_TX__AUART2_TX			0x3090
-MX28_PAD_AUART2_CTS__AUART2_CTS			0x30a0
-MX28_PAD_AUART2_RTS__AUART2_RTS			0x30b0
-MX28_PAD_AUART3_RX__AUART3_RX			0x30c0
-MX28_PAD_AUART3_TX__AUART3_TX			0x30d0
-MX28_PAD_AUART3_CTS__AUART3_CTS			0x30e0
-MX28_PAD_AUART3_RTS__AUART3_RTS			0x30f0
-MX28_PAD_PWM0__PWM_0				0x3100
-MX28_PAD_PWM1__PWM_1				0x3110
-MX28_PAD_PWM2__PWM_2				0x3120
-MX28_PAD_SAIF0_MCLK__SAIF0_MCLK			0x3140
-MX28_PAD_SAIF0_LRCLK__SAIF0_LRCLK		0x3150
-MX28_PAD_SAIF0_BITCLK__SAIF0_BITCLK		0x3160
-MX28_PAD_SAIF0_SDATA0__SAIF0_SDATA0		0x3170
-MX28_PAD_I2C0_SCL__I2C0_SCL			0x3180
-MX28_PAD_I2C0_SDA__I2C0_SDA			0x3190
-MX28_PAD_SAIF1_SDATA0__SAIF1_SDATA0		0x31a0
-MX28_PAD_SPDIF__SPDIF_TX			0x31b0
-MX28_PAD_PWM3__PWM_3				0x31c0
-MX28_PAD_PWM4__PWM_4				0x31d0
-MX28_PAD_LCD_RESET__LCD_RESET			0x31e0
-MX28_PAD_ENET0_MDC__ENET0_MDC			0x4000
-MX28_PAD_ENET0_MDIO__ENET0_MDIO			0x4010
-MX28_PAD_ENET0_RX_EN__ENET0_RX_EN		0x4020
-MX28_PAD_ENET0_RXD0__ENET0_RXD0			0x4030
-MX28_PAD_ENET0_RXD1__ENET0_RXD1			0x4040
-MX28_PAD_ENET0_TX_CLK__ENET0_TX_CLK		0x4050
-MX28_PAD_ENET0_TX_EN__ENET0_TX_EN		0x4060
-MX28_PAD_ENET0_TXD0__ENET0_TXD0			0x4070
-MX28_PAD_ENET0_TXD1__ENET0_TXD1			0x4080
-MX28_PAD_ENET0_RXD2__ENET0_RXD2			0x4090
-MX28_PAD_ENET0_RXD3__ENET0_RXD3			0x40a0
-MX28_PAD_ENET0_TXD2__ENET0_TXD2			0x40b0
-MX28_PAD_ENET0_TXD3__ENET0_TXD3			0x40c0
-MX28_PAD_ENET0_RX_CLK__ENET0_RX_CLK		0x40d0
-MX28_PAD_ENET0_COL__ENET0_COL			0x40e0
-MX28_PAD_ENET0_CRS__ENET0_CRS			0x40f0
-MX28_PAD_ENET_CLK__CLKCTRL_ENET			0x4100
-MX28_PAD_JTAG_RTCK__JTAG_RTCK			0x4140
-MX28_PAD_EMI_D00__EMI_DATA0			0x5000
-MX28_PAD_EMI_D01__EMI_DATA1			0x5010
-MX28_PAD_EMI_D02__EMI_DATA2			0x5020
-MX28_PAD_EMI_D03__EMI_DATA3			0x5030
-MX28_PAD_EMI_D04__EMI_DATA4			0x5040
-MX28_PAD_EMI_D05__EMI_DATA5			0x5050
-MX28_PAD_EMI_D06__EMI_DATA6			0x5060
-MX28_PAD_EMI_D07__EMI_DATA7			0x5070
-MX28_PAD_EMI_D08__EMI_DATA8			0x5080
-MX28_PAD_EMI_D09__EMI_DATA9			0x5090
-MX28_PAD_EMI_D10__EMI_DATA10			0x50a0
-MX28_PAD_EMI_D11__EMI_DATA11			0x50b0
-MX28_PAD_EMI_D12__EMI_DATA12			0x50c0
-MX28_PAD_EMI_D13__EMI_DATA13			0x50d0
-MX28_PAD_EMI_D14__EMI_DATA14			0x50e0
-MX28_PAD_EMI_D15__EMI_DATA15			0x50f0
-MX28_PAD_EMI_ODT0__EMI_ODT0			0x5100
-MX28_PAD_EMI_DQM0__EMI_DQM0			0x5110
-MX28_PAD_EMI_ODT1__EMI_ODT1			0x5120
-MX28_PAD_EMI_DQM1__EMI_DQM1			0x5130
-MX28_PAD_EMI_DDR_OPEN_FB__EMI_DDR_OPEN_FEEDBACK	0x5140
-MX28_PAD_EMI_CLK__EMI_CLK			0x5150
-MX28_PAD_EMI_DQS0__EMI_DQS0			0x5160
-MX28_PAD_EMI_DQS1__EMI_DQS1			0x5170
-MX28_PAD_EMI_DDR_OPEN__EMI_DDR_OPEN		0x51a0
-MX28_PAD_EMI_A00__EMI_ADDR0			0x6000
-MX28_PAD_EMI_A01__EMI_ADDR1			0x6010
-MX28_PAD_EMI_A02__EMI_ADDR2			0x6020
-MX28_PAD_EMI_A03__EMI_ADDR3			0x6030
-MX28_PAD_EMI_A04__EMI_ADDR4			0x6040
-MX28_PAD_EMI_A05__EMI_ADDR5			0x6050
-MX28_PAD_EMI_A06__EMI_ADDR6			0x6060
-MX28_PAD_EMI_A07__EMI_ADDR7			0x6070
-MX28_PAD_EMI_A08__EMI_ADDR8			0x6080
-MX28_PAD_EMI_A09__EMI_ADDR9			0x6090
-MX28_PAD_EMI_A10__EMI_ADDR10			0x60a0
-MX28_PAD_EMI_A11__EMI_ADDR11			0x60b0
-MX28_PAD_EMI_A12__EMI_ADDR12			0x60c0
-MX28_PAD_EMI_A13__EMI_ADDR13			0x60d0
-MX28_PAD_EMI_A14__EMI_ADDR14			0x60e0
-MX28_PAD_EMI_BA0__EMI_BA0			0x6100
-MX28_PAD_EMI_BA1__EMI_BA1			0x6110
-MX28_PAD_EMI_BA2__EMI_BA2			0x6120
-MX28_PAD_EMI_CASN__EMI_CASN			0x6130
-MX28_PAD_EMI_RASN__EMI_RASN			0x6140
-MX28_PAD_EMI_WEN__EMI_WEN			0x6150
-MX28_PAD_EMI_CE0N__EMI_CE0N			0x6160
-MX28_PAD_EMI_CE1N__EMI_CE1N			0x6170
-MX28_PAD_EMI_CKE__EMI_CKE			0x6180
-MX28_PAD_GPMI_D00__SSP1_D0			0x0001
-MX28_PAD_GPMI_D01__SSP1_D1			0x0011
-MX28_PAD_GPMI_D02__SSP1_D2			0x0021
-MX28_PAD_GPMI_D03__SSP1_D3			0x0031
-MX28_PAD_GPMI_D04__SSP1_D4			0x0041
-MX28_PAD_GPMI_D05__SSP1_D5			0x0051
-MX28_PAD_GPMI_D06__SSP1_D6			0x0061
-MX28_PAD_GPMI_D07__SSP1_D7			0x0071
-MX28_PAD_GPMI_CE0N__SSP3_D0			0x0101
-MX28_PAD_GPMI_CE1N__SSP3_D3			0x0111
-MX28_PAD_GPMI_CE2N__CAN1_TX			0x0121
-MX28_PAD_GPMI_CE3N__CAN1_RX			0x0131
-MX28_PAD_GPMI_RDY0__SSP1_CARD_DETECT		0x0141
-MX28_PAD_GPMI_RDY1__SSP1_CMD			0x0151
-MX28_PAD_GPMI_RDY2__CAN0_TX			0x0161
-MX28_PAD_GPMI_RDY3__CAN0_RX			0x0171
-MX28_PAD_GPMI_RDN__SSP3_SCK			0x0181
-MX28_PAD_GPMI_WRN__SSP1_SCK			0x0191
-MX28_PAD_GPMI_ALE__SSP3_D1			0x01a1
-MX28_PAD_GPMI_CLE__SSP3_D2			0x01b1
-MX28_PAD_GPMI_RESETN__SSP3_CMD			0x01c1
-MX28_PAD_LCD_D03__ETM_DA8			0x1031
-MX28_PAD_LCD_D04__ETM_DA9			0x1041
-MX28_PAD_LCD_D08__ETM_DA3			0x1081
-MX28_PAD_LCD_D09__ETM_DA4			0x1091
-MX28_PAD_LCD_D20__ENET1_1588_EVENT2_OUT		0x1141
-MX28_PAD_LCD_D21__ENET1_1588_EVENT2_IN		0x1151
-MX28_PAD_LCD_D22__ENET1_1588_EVENT3_OUT		0x1161
-MX28_PAD_LCD_D23__ENET1_1588_EVENT3_IN		0x1171
-MX28_PAD_LCD_RD_E__LCD_VSYNC			0x1181
-MX28_PAD_LCD_WR_RWN__LCD_HSYNC			0x1191
-MX28_PAD_LCD_RS__LCD_DOTCLK			0x11a1
-MX28_PAD_LCD_CS__LCD_ENABLE			0x11b1
-MX28_PAD_LCD_VSYNC__SAIF1_SDATA0		0x11c1
-MX28_PAD_LCD_HSYNC__SAIF1_SDATA1		0x11d1
-MX28_PAD_LCD_DOTCLK__SAIF1_MCLK			0x11e1
-MX28_PAD_SSP0_DATA4__SSP2_D0			0x2041
-MX28_PAD_SSP0_DATA5__SSP2_D3			0x2051
-MX28_PAD_SSP0_DATA6__SSP2_CMD			0x2061
-MX28_PAD_SSP0_DATA7__SSP2_SCK			0x2071
-MX28_PAD_SSP1_SCK__SSP2_D1			0x20c1
-MX28_PAD_SSP1_CMD__SSP2_D2			0x20d1
-MX28_PAD_SSP1_DATA0__SSP2_D6			0x20e1
-MX28_PAD_SSP1_DATA3__SSP2_D7			0x20f1
-MX28_PAD_SSP2_SCK__AUART2_RX			0x2101
-MX28_PAD_SSP2_MOSI__AUART2_TX			0x2111
-MX28_PAD_SSP2_MISO__AUART3_RX			0x2121
-MX28_PAD_SSP2_SS0__AUART3_TX			0x2131
-MX28_PAD_SSP2_SS1__SSP2_D1			0x2141
-MX28_PAD_SSP2_SS2__SSP2_D2			0x2151
-MX28_PAD_SSP3_SCK__AUART4_TX			0x2181
-MX28_PAD_SSP3_MOSI__AUART4_RX			0x2191
-MX28_PAD_SSP3_MISO__AUART4_RTS			0x21a1
-MX28_PAD_SSP3_SS0__AUART4_CTS			0x21b1
-MX28_PAD_AUART0_RX__I2C0_SCL			0x3001
-MX28_PAD_AUART0_TX__I2C0_SDA			0x3011
-MX28_PAD_AUART0_CTS__AUART4_RX			0x3021
-MX28_PAD_AUART0_RTS__AUART4_TX			0x3031
-MX28_PAD_AUART1_RX__SSP2_CARD_DETECT		0x3041
-MX28_PAD_AUART1_TX__SSP3_CARD_DETECT		0x3051
-MX28_PAD_AUART1_CTS__USB0_OVERCURRENT		0x3061
-MX28_PAD_AUART1_RTS__USB0_ID			0x3071
-MX28_PAD_AUART2_RX__SSP3_D1			0x3081
-MX28_PAD_AUART2_TX__SSP3_D2			0x3091
-MX28_PAD_AUART2_CTS__I2C1_SCL			0x30a1
-MX28_PAD_AUART2_RTS__I2C1_SDA			0x30b1
-MX28_PAD_AUART3_RX__CAN0_TX			0x30c1
-MX28_PAD_AUART3_TX__CAN0_RX			0x30d1
-MX28_PAD_AUART3_CTS__CAN1_TX			0x30e1
-MX28_PAD_AUART3_RTS__CAN1_RX			0x30f1
-MX28_PAD_PWM0__I2C1_SCL				0x3101
-MX28_PAD_PWM1__I2C1_SDA				0x3111
-MX28_PAD_PWM2__USB0_ID				0x3121
-MX28_PAD_SAIF0_MCLK__PWM_3			0x3141
-MX28_PAD_SAIF0_LRCLK__PWM_4			0x3151
-MX28_PAD_SAIF0_BITCLK__PWM_5			0x3161
-MX28_PAD_SAIF0_SDATA0__PWM_6			0x3171
-MX28_PAD_I2C0_SCL__TIMROT_ROTARYA		0x3181
-MX28_PAD_I2C0_SDA__TIMROT_ROTARYB		0x3191
-MX28_PAD_SAIF1_SDATA0__PWM_7			0x31a1
-MX28_PAD_LCD_RESET__LCD_VSYNC			0x31e1
-MX28_PAD_ENET0_MDC__GPMI_CE4N			0x4001
-MX28_PAD_ENET0_MDIO__GPMI_CE5N			0x4011
-MX28_PAD_ENET0_RX_EN__GPMI_CE6N			0x4021
-MX28_PAD_ENET0_RXD0__GPMI_CE7N			0x4031
-MX28_PAD_ENET0_RXD1__GPMI_READY4		0x4041
-MX28_PAD_ENET0_TX_CLK__HSADC_TRIGGER		0x4051
-MX28_PAD_ENET0_TX_EN__GPMI_READY5		0x4061
-MX28_PAD_ENET0_TXD0__GPMI_READY6		0x4071
-MX28_PAD_ENET0_TXD1__GPMI_READY7		0x4081
-MX28_PAD_ENET0_RXD2__ENET1_RXD0			0x4091
-MX28_PAD_ENET0_RXD3__ENET1_RXD1			0x40a1
-MX28_PAD_ENET0_TXD2__ENET1_TXD0			0x40b1
-MX28_PAD_ENET0_TXD3__ENET1_TXD1			0x40c1
-MX28_PAD_ENET0_RX_CLK__ENET0_RX_ER		0x40d1
-MX28_PAD_ENET0_COL__ENET1_TX_EN			0x40e1
-MX28_PAD_ENET0_CRS__ENET1_RX_EN			0x40f1
-MX28_PAD_GPMI_CE2N__ENET0_RX_ER			0x0122
-MX28_PAD_GPMI_CE3N__SAIF1_MCLK			0x0132
-MX28_PAD_GPMI_RDY0__USB0_ID			0x0142
-MX28_PAD_GPMI_RDY2__ENET0_TX_ER			0x0162
-MX28_PAD_GPMI_RDY3__HSADC_TRIGGER		0x0172
-MX28_PAD_GPMI_ALE__SSP3_D4			0x01a2
-MX28_PAD_GPMI_CLE__SSP3_D5			0x01b2
-MX28_PAD_LCD_D00__ETM_DA0			0x1002
-MX28_PAD_LCD_D01__ETM_DA1			0x1012
-MX28_PAD_LCD_D02__ETM_DA2			0x1022
-MX28_PAD_LCD_D03__ETM_DA3			0x1032
-MX28_PAD_LCD_D04__ETM_DA4			0x1042
-MX28_PAD_LCD_D05__ETM_DA5			0x1052
-MX28_PAD_LCD_D06__ETM_DA6			0x1062
-MX28_PAD_LCD_D07__ETM_DA7			0x1072
-MX28_PAD_LCD_D08__ETM_DA8			0x1082
-MX28_PAD_LCD_D09__ETM_DA9			0x1092
-MX28_PAD_LCD_D10__ETM_DA10			0x10a2
-MX28_PAD_LCD_D11__ETM_DA11			0x10b2
-MX28_PAD_LCD_D12__ETM_DA12			0x10c2
-MX28_PAD_LCD_D13__ETM_DA13			0x10d2
-MX28_PAD_LCD_D14__ETM_DA14			0x10e2
-MX28_PAD_LCD_D15__ETM_DA15			0x10f2
-MX28_PAD_LCD_D16__ETM_DA7			0x1102
-MX28_PAD_LCD_D17__ETM_DA6			0x1112
-MX28_PAD_LCD_D18__ETM_DA5			0x1122
-MX28_PAD_LCD_D19__ETM_DA4			0x1132
-MX28_PAD_LCD_D20__ETM_DA3			0x1142
-MX28_PAD_LCD_D21__ETM_DA2			0x1152
-MX28_PAD_LCD_D22__ETM_DA1			0x1162
-MX28_PAD_LCD_D23__ETM_DA0			0x1172
-MX28_PAD_LCD_RD_E__ETM_TCTL			0x1182
-MX28_PAD_LCD_WR_RWN__ETM_TCLK			0x1192
-MX28_PAD_LCD_HSYNC__ETM_TCTL			0x11d2
-MX28_PAD_LCD_DOTCLK__ETM_TCLK			0x11e2
-MX28_PAD_SSP1_SCK__ENET0_1588_EVENT2_OUT	0x20c2
-MX28_PAD_SSP1_CMD__ENET0_1588_EVENT2_IN		0x20d2
-MX28_PAD_SSP1_DATA0__ENET0_1588_EVENT3_OUT	0x20e2
-MX28_PAD_SSP1_DATA3__ENET0_1588_EVENT3_IN	0x20f2
-MX28_PAD_SSP2_SCK__SAIF0_SDATA1			0x2102
-MX28_PAD_SSP2_MOSI__SAIF0_SDATA2		0x2112
-MX28_PAD_SSP2_MISO__SAIF1_SDATA1		0x2122
-MX28_PAD_SSP2_SS0__SAIF1_SDATA2			0x2132
-MX28_PAD_SSP2_SS1__USB1_OVERCURRENT		0x2142
-MX28_PAD_SSP2_SS2__USB0_OVERCURRENT		0x2152
-MX28_PAD_SSP3_SCK__ENET1_1588_EVENT0_OUT	0x2182
-MX28_PAD_SSP3_MOSI__ENET1_1588_EVENT0_IN	0x2192
-MX28_PAD_SSP3_MISO__ENET1_1588_EVENT1_OUT	0x21a2
-MX28_PAD_SSP3_SS0__ENET1_1588_EVENT1_IN		0x21b2
-MX28_PAD_AUART0_RX__DUART_CTS			0x3002
-MX28_PAD_AUART0_TX__DUART_RTS			0x3012
-MX28_PAD_AUART0_CTS__DUART_RX			0x3022
-MX28_PAD_AUART0_RTS__DUART_TX			0x3032
-MX28_PAD_AUART1_RX__PWM_0			0x3042
-MX28_PAD_AUART1_TX__PWM_1			0x3052
-MX28_PAD_AUART1_CTS__TIMROT_ROTARYA		0x3062
-MX28_PAD_AUART1_RTS__TIMROT_ROTARYB		0x3072
-MX28_PAD_AUART2_RX__SSP3_D4			0x3082
-MX28_PAD_AUART2_TX__SSP3_D5			0x3092
-MX28_PAD_AUART2_CTS__SAIF1_BITCLK		0x30a2
-MX28_PAD_AUART2_RTS__SAIF1_LRCLK		0x30b2
-MX28_PAD_AUART3_RX__ENET0_1588_EVENT0_OUT	0x30c2
-MX28_PAD_AUART3_TX__ENET0_1588_EVENT0_IN	0x30d2
-MX28_PAD_AUART3_CTS__ENET0_1588_EVENT1_OUT	0x30e2
-MX28_PAD_AUART3_RTS__ENET0_1588_EVENT1_IN	0x30f2
-MX28_PAD_PWM0__DUART_RX				0x3102
-MX28_PAD_PWM1__DUART_TX				0x3112
-MX28_PAD_PWM2__USB1_OVERCURRENT			0x3122
-MX28_PAD_SAIF0_MCLK__AUART4_CTS			0x3142
-MX28_PAD_SAIF0_LRCLK__AUART4_RTS		0x3152
-MX28_PAD_SAIF0_BITCLK__AUART4_RX		0x3162
-MX28_PAD_SAIF0_SDATA0__AUART4_TX		0x3172
-MX28_PAD_I2C0_SCL__DUART_RX			0x3182
-MX28_PAD_I2C0_SDA__DUART_TX			0x3192
-MX28_PAD_SAIF1_SDATA0__SAIF0_SDATA1		0x31a2
-MX28_PAD_SPDIF__ENET1_RX_ER			0x31b2
-MX28_PAD_ENET0_MDC__SAIF0_SDATA1		0x4002
-MX28_PAD_ENET0_MDIO__SAIF0_SDATA2		0x4012
-MX28_PAD_ENET0_RX_EN__SAIF1_SDATA1		0x4022
-MX28_PAD_ENET0_RXD0__SAIF1_SDATA2		0x4032
-MX28_PAD_ENET0_TX_CLK__ENET0_1588_EVENT2_OUT	0x4052
-MX28_PAD_ENET0_RXD2__ENET0_1588_EVENT0_OUT	0x4092
-MX28_PAD_ENET0_RXD3__ENET0_1588_EVENT0_IN	0x40a2
-MX28_PAD_ENET0_TXD2__ENET0_1588_EVENT1_OUT	0x40b2
-MX28_PAD_ENET0_TXD3__ENET0_1588_EVENT1_IN	0x40c2
-MX28_PAD_ENET0_RX_CLK__ENET0_1588_EVENT2_IN	0x40d2
-MX28_PAD_ENET0_COL__ENET0_1588_EVENT3_OUT	0x40e2
-MX28_PAD_ENET0_CRS__ENET0_1588_EVENT3_IN	0x40f2
-MX28_PAD_GPMI_D00__GPIO_0_0			0x0003
-MX28_PAD_GPMI_D01__GPIO_0_1			0x0013
-MX28_PAD_GPMI_D02__GPIO_0_2			0x0023
-MX28_PAD_GPMI_D03__GPIO_0_3			0x0033
-MX28_PAD_GPMI_D04__GPIO_0_4			0x0043
-MX28_PAD_GPMI_D05__GPIO_0_5			0x0053
-MX28_PAD_GPMI_D06__GPIO_0_6			0x0063
-MX28_PAD_GPMI_D07__GPIO_0_7			0x0073
-MX28_PAD_GPMI_CE0N__GPIO_0_16			0x0103
-MX28_PAD_GPMI_CE1N__GPIO_0_17			0x0113
-MX28_PAD_GPMI_CE2N__GPIO_0_18			0x0123
-MX28_PAD_GPMI_CE3N__GPIO_0_19			0x0133
-MX28_PAD_GPMI_RDY0__GPIO_0_20			0x0143
-MX28_PAD_GPMI_RDY1__GPIO_0_21			0x0153
-MX28_PAD_GPMI_RDY2__GPIO_0_22			0x0163
-MX28_PAD_GPMI_RDY3__GPIO_0_23			0x0173
-MX28_PAD_GPMI_RDN__GPIO_0_24			0x0183
-MX28_PAD_GPMI_WRN__GPIO_0_25			0x0193
-MX28_PAD_GPMI_ALE__GPIO_0_26			0x01a3
-MX28_PAD_GPMI_CLE__GPIO_0_27			0x01b3
-MX28_PAD_GPMI_RESETN__GPIO_0_28			0x01c3
-MX28_PAD_LCD_D00__GPIO_1_0			0x1003
-MX28_PAD_LCD_D01__GPIO_1_1			0x1013
-MX28_PAD_LCD_D02__GPIO_1_2			0x1023
-MX28_PAD_LCD_D03__GPIO_1_3			0x1033
-MX28_PAD_LCD_D04__GPIO_1_4			0x1043
-MX28_PAD_LCD_D05__GPIO_1_5			0x1053
-MX28_PAD_LCD_D06__GPIO_1_6			0x1063
-MX28_PAD_LCD_D07__GPIO_1_7			0x1073
-MX28_PAD_LCD_D08__GPIO_1_8			0x1083
-MX28_PAD_LCD_D09__GPIO_1_9			0x1093
-MX28_PAD_LCD_D10__GPIO_1_10			0x10a3
-MX28_PAD_LCD_D11__GPIO_1_11			0x10b3
-MX28_PAD_LCD_D12__GPIO_1_12			0x10c3
-MX28_PAD_LCD_D13__GPIO_1_13			0x10d3
-MX28_PAD_LCD_D14__GPIO_1_14			0x10e3
-MX28_PAD_LCD_D15__GPIO_1_15			0x10f3
-MX28_PAD_LCD_D16__GPIO_1_16			0x1103
-MX28_PAD_LCD_D17__GPIO_1_17			0x1113
-MX28_PAD_LCD_D18__GPIO_1_18			0x1123
-MX28_PAD_LCD_D19__GPIO_1_19			0x1133
-MX28_PAD_LCD_D20__GPIO_1_20			0x1143
-MX28_PAD_LCD_D21__GPIO_1_21			0x1153
-MX28_PAD_LCD_D22__GPIO_1_22			0x1163
-MX28_PAD_LCD_D23__GPIO_1_23			0x1173
-MX28_PAD_LCD_RD_E__GPIO_1_24			0x1183
-MX28_PAD_LCD_WR_RWN__GPIO_1_25			0x1193
-MX28_PAD_LCD_RS__GPIO_1_26			0x11a3
-MX28_PAD_LCD_CS__GPIO_1_27			0x11b3
-MX28_PAD_LCD_VSYNC__GPIO_1_28			0x11c3
-MX28_PAD_LCD_HSYNC__GPIO_1_29			0x11d3
-MX28_PAD_LCD_DOTCLK__GPIO_1_30			0x11e3
-MX28_PAD_LCD_ENABLE__GPIO_1_31			0x11f3
-MX28_PAD_SSP0_DATA0__GPIO_2_0			0x2003
-MX28_PAD_SSP0_DATA1__GPIO_2_1			0x2013
-MX28_PAD_SSP0_DATA2__GPIO_2_2			0x2023
-MX28_PAD_SSP0_DATA3__GPIO_2_3			0x2033
-MX28_PAD_SSP0_DATA4__GPIO_2_4			0x2043
-MX28_PAD_SSP0_DATA5__GPIO_2_5			0x2053
-MX28_PAD_SSP0_DATA6__GPIO_2_6			0x2063
-MX28_PAD_SSP0_DATA7__GPIO_2_7			0x2073
-MX28_PAD_SSP0_CMD__GPIO_2_8			0x2083
-MX28_PAD_SSP0_DETECT__GPIO_2_9			0x2093
-MX28_PAD_SSP0_SCK__GPIO_2_10			0x20a3
-MX28_PAD_SSP1_SCK__GPIO_2_12			0x20c3
-MX28_PAD_SSP1_CMD__GPIO_2_13			0x20d3
-MX28_PAD_SSP1_DATA0__GPIO_2_14			0x20e3
-MX28_PAD_SSP1_DATA3__GPIO_2_15			0x20f3
-MX28_PAD_SSP2_SCK__GPIO_2_16			0x2103
-MX28_PAD_SSP2_MOSI__GPIO_2_17			0x2113
-MX28_PAD_SSP2_MISO__GPIO_2_18			0x2123
-MX28_PAD_SSP2_SS0__GPIO_2_19			0x2133
-MX28_PAD_SSP2_SS1__GPIO_2_20			0x2143
-MX28_PAD_SSP2_SS2__GPIO_2_21			0x2153
-MX28_PAD_SSP3_SCK__GPIO_2_24			0x2183
-MX28_PAD_SSP3_MOSI__GPIO_2_25			0x2193
-MX28_PAD_SSP3_MISO__GPIO_2_26			0x21a3
-MX28_PAD_SSP3_SS0__GPIO_2_27			0x21b3
-MX28_PAD_AUART0_RX__GPIO_3_0			0x3003
-MX28_PAD_AUART0_TX__GPIO_3_1			0x3013
-MX28_PAD_AUART0_CTS__GPIO_3_2			0x3023
-MX28_PAD_AUART0_RTS__GPIO_3_3			0x3033
-MX28_PAD_AUART1_RX__GPIO_3_4			0x3043
-MX28_PAD_AUART1_TX__GPIO_3_5			0x3053
-MX28_PAD_AUART1_CTS__GPIO_3_6			0x3063
-MX28_PAD_AUART1_RTS__GPIO_3_7			0x3073
-MX28_PAD_AUART2_RX__GPIO_3_8			0x3083
-MX28_PAD_AUART2_TX__GPIO_3_9			0x3093
-MX28_PAD_AUART2_CTS__GPIO_3_10			0x30a3
-MX28_PAD_AUART2_RTS__GPIO_3_11			0x30b3
-MX28_PAD_AUART3_RX__GPIO_3_12			0x30c3
-MX28_PAD_AUART3_TX__GPIO_3_13			0x30d3
-MX28_PAD_AUART3_CTS__GPIO_3_14			0x30e3
-MX28_PAD_AUART3_RTS__GPIO_3_15			0x30f3
-MX28_PAD_PWM0__GPIO_3_16			0x3103
-MX28_PAD_PWM1__GPIO_3_17			0x3113
-MX28_PAD_PWM2__GPIO_3_18			0x3123
-MX28_PAD_SAIF0_MCLK__GPIO_3_20			0x3143
-MX28_PAD_SAIF0_LRCLK__GPIO_3_21			0x3153
-MX28_PAD_SAIF0_BITCLK__GPIO_3_22		0x3163
-MX28_PAD_SAIF0_SDATA0__GPIO_3_23		0x3173
-MX28_PAD_I2C0_SCL__GPIO_3_24			0x3183
-MX28_PAD_I2C0_SDA__GPIO_3_25			0x3193
-MX28_PAD_SAIF1_SDATA0__GPIO_3_26		0x31a3
-MX28_PAD_SPDIF__GPIO_3_27			0x31b3
-MX28_PAD_PWM3__GPIO_3_28			0x31c3
-MX28_PAD_PWM4__GPIO_3_29			0x31d3
-MX28_PAD_LCD_RESET__GPIO_3_30			0x31e3
-MX28_PAD_ENET0_MDC__GPIO_4_0			0x4003
-MX28_PAD_ENET0_MDIO__GPIO_4_1			0x4013
-MX28_PAD_ENET0_RX_EN__GPIO_4_2			0x4023
-MX28_PAD_ENET0_RXD0__GPIO_4_3			0x4033
-MX28_PAD_ENET0_RXD1__GPIO_4_4			0x4043
-MX28_PAD_ENET0_TX_CLK__GPIO_4_5			0x4053
-MX28_PAD_ENET0_TX_EN__GPIO_4_6			0x4063
-MX28_PAD_ENET0_TXD0__GPIO_4_7			0x4073
-MX28_PAD_ENET0_TXD1__GPIO_4_8			0x4083
-MX28_PAD_ENET0_RXD2__GPIO_4_9			0x4093
-MX28_PAD_ENET0_RXD3__GPIO_4_10			0x40a3
-MX28_PAD_ENET0_TXD2__GPIO_4_11			0x40b3
-MX28_PAD_ENET0_TXD3__GPIO_4_12			0x40c3
-MX28_PAD_ENET0_RX_CLK__GPIO_4_13		0x40d3
-MX28_PAD_ENET0_COL__GPIO_4_14			0x40e3
-MX28_PAD_ENET0_CRS__GPIO_4_15			0x40f3
-MX28_PAD_ENET_CLK__GPIO_4_16			0x4103
-MX28_PAD_JTAG_RTCK__GPIO_4_20			0x4143
-
-Valid values for i.MX23 pinmux-id:
-
-pinmux						id
-------						--
-MX23_PAD_GPMI_D00__GPMI_D00			0x0000
-MX23_PAD_GPMI_D01__GPMI_D01			0x0010
-MX23_PAD_GPMI_D02__GPMI_D02			0x0020
-MX23_PAD_GPMI_D03__GPMI_D03			0x0030
-MX23_PAD_GPMI_D04__GPMI_D04			0x0040
-MX23_PAD_GPMI_D05__GPMI_D05			0x0050
-MX23_PAD_GPMI_D06__GPMI_D06			0x0060
-MX23_PAD_GPMI_D07__GPMI_D07			0x0070
-MX23_PAD_GPMI_D08__GPMI_D08			0x0080
-MX23_PAD_GPMI_D09__GPMI_D09			0x0090
-MX23_PAD_GPMI_D10__GPMI_D10			0x00a0
-MX23_PAD_GPMI_D11__GPMI_D11			0x00b0
-MX23_PAD_GPMI_D12__GPMI_D12			0x00c0
-MX23_PAD_GPMI_D13__GPMI_D13			0x00d0
-MX23_PAD_GPMI_D14__GPMI_D14			0x00e0
-MX23_PAD_GPMI_D15__GPMI_D15			0x00f0
-MX23_PAD_GPMI_CLE__GPMI_CLE			0x0100
-MX23_PAD_GPMI_ALE__GPMI_ALE			0x0110
-MX23_PAD_GPMI_CE2N__GPMI_CE2N			0x0120
-MX23_PAD_GPMI_RDY0__GPMI_RDY0			0x0130
-MX23_PAD_GPMI_RDY1__GPMI_RDY1			0x0140
-MX23_PAD_GPMI_RDY2__GPMI_RDY2			0x0150
-MX23_PAD_GPMI_RDY3__GPMI_RDY3			0x0160
-MX23_PAD_GPMI_WPN__GPMI_WPN			0x0170
-MX23_PAD_GPMI_WRN__GPMI_WRN			0x0180
-MX23_PAD_GPMI_RDN__GPMI_RDN			0x0190
-MX23_PAD_AUART1_CTS__AUART1_CTS			0x01a0
-MX23_PAD_AUART1_RTS__AUART1_RTS			0x01b0
-MX23_PAD_AUART1_RX__AUART1_RX			0x01c0
-MX23_PAD_AUART1_TX__AUART1_TX			0x01d0
-MX23_PAD_I2C_SCL__I2C_SCL			0x01e0
-MX23_PAD_I2C_SDA__I2C_SDA			0x01f0
-MX23_PAD_LCD_D00__LCD_D00			0x1000
-MX23_PAD_LCD_D01__LCD_D01			0x1010
-MX23_PAD_LCD_D02__LCD_D02			0x1020
-MX23_PAD_LCD_D03__LCD_D03			0x1030
-MX23_PAD_LCD_D04__LCD_D04			0x1040
-MX23_PAD_LCD_D05__LCD_D05			0x1050
-MX23_PAD_LCD_D06__LCD_D06			0x1060
-MX23_PAD_LCD_D07__LCD_D07			0x1070
-MX23_PAD_LCD_D08__LCD_D08			0x1080
-MX23_PAD_LCD_D09__LCD_D09			0x1090
-MX23_PAD_LCD_D10__LCD_D10			0x10a0
-MX23_PAD_LCD_D11__LCD_D11			0x10b0
-MX23_PAD_LCD_D12__LCD_D12			0x10c0
-MX23_PAD_LCD_D13__LCD_D13			0x10d0
-MX23_PAD_LCD_D14__LCD_D14			0x10e0
-MX23_PAD_LCD_D15__LCD_D15			0x10f0
-MX23_PAD_LCD_D16__LCD_D16			0x1100
-MX23_PAD_LCD_D17__LCD_D17			0x1110
-MX23_PAD_LCD_RESET__LCD_RESET			0x1120
-MX23_PAD_LCD_RS__LCD_RS				0x1130
-MX23_PAD_LCD_WR__LCD_WR				0x1140
-MX23_PAD_LCD_CS__LCD_CS				0x1150
-MX23_PAD_LCD_DOTCK__LCD_DOTCK			0x1160
-MX23_PAD_LCD_ENABLE__LCD_ENABLE			0x1170
-MX23_PAD_LCD_HSYNC__LCD_HSYNC			0x1180
-MX23_PAD_LCD_VSYNC__LCD_VSYNC			0x1190
-MX23_PAD_PWM0__PWM0				0x11a0
-MX23_PAD_PWM1__PWM1				0x11b0
-MX23_PAD_PWM2__PWM2				0x11c0
-MX23_PAD_PWM3__PWM3				0x11d0
-MX23_PAD_PWM4__PWM4				0x11e0
-MX23_PAD_SSP1_CMD__SSP1_CMD			0x2000
-MX23_PAD_SSP1_DETECT__SSP1_DETECT		0x2010
-MX23_PAD_SSP1_DATA0__SSP1_DATA0			0x2020
-MX23_PAD_SSP1_DATA1__SSP1_DATA1			0x2030
-MX23_PAD_SSP1_DATA2__SSP1_DATA2			0x2040
-MX23_PAD_SSP1_DATA3__SSP1_DATA3			0x2050
-MX23_PAD_SSP1_SCK__SSP1_SCK			0x2060
-MX23_PAD_ROTARYA__ROTARYA			0x2070
-MX23_PAD_ROTARYB__ROTARYB			0x2080
-MX23_PAD_EMI_A00__EMI_A00			0x2090
-MX23_PAD_EMI_A01__EMI_A01			0x20a0
-MX23_PAD_EMI_A02__EMI_A02			0x20b0
-MX23_PAD_EMI_A03__EMI_A03			0x20c0
-MX23_PAD_EMI_A04__EMI_A04			0x20d0
-MX23_PAD_EMI_A05__EMI_A05			0x20e0
-MX23_PAD_EMI_A06__EMI_A06			0x20f0
-MX23_PAD_EMI_A07__EMI_A07			0x2100
-MX23_PAD_EMI_A08__EMI_A08			0x2110
-MX23_PAD_EMI_A09__EMI_A09			0x2120
-MX23_PAD_EMI_A10__EMI_A10			0x2130
-MX23_PAD_EMI_A11__EMI_A11			0x2140
-MX23_PAD_EMI_A12__EMI_A12			0x2150
-MX23_PAD_EMI_BA0__EMI_BA0			0x2160
-MX23_PAD_EMI_BA1__EMI_BA1			0x2170
-MX23_PAD_EMI_CASN__EMI_CASN			0x2180
-MX23_PAD_EMI_CE0N__EMI_CE0N			0x2190
-MX23_PAD_EMI_CE1N__EMI_CE1N			0x21a0
-MX23_PAD_GPMI_CE1N__GPMI_CE1N			0x21b0
-MX23_PAD_GPMI_CE0N__GPMI_CE0N			0x21c0
-MX23_PAD_EMI_CKE__EMI_CKE			0x21d0
-MX23_PAD_EMI_RASN__EMI_RASN			0x21e0
-MX23_PAD_EMI_WEN__EMI_WEN			0x21f0
-MX23_PAD_EMI_D00__EMI_D00			0x3000
-MX23_PAD_EMI_D01__EMI_D01			0x3010
-MX23_PAD_EMI_D02__EMI_D02			0x3020
-MX23_PAD_EMI_D03__EMI_D03			0x3030
-MX23_PAD_EMI_D04__EMI_D04			0x3040
-MX23_PAD_EMI_D05__EMI_D05			0x3050
-MX23_PAD_EMI_D06__EMI_D06			0x3060
-MX23_PAD_EMI_D07__EMI_D07			0x3070
-MX23_PAD_EMI_D08__EMI_D08			0x3080
-MX23_PAD_EMI_D09__EMI_D09			0x3090
-MX23_PAD_EMI_D10__EMI_D10			0x30a0
-MX23_PAD_EMI_D11__EMI_D11			0x30b0
-MX23_PAD_EMI_D12__EMI_D12			0x30c0
-MX23_PAD_EMI_D13__EMI_D13			0x30d0
-MX23_PAD_EMI_D14__EMI_D14			0x30e0
-MX23_PAD_EMI_D15__EMI_D15			0x30f0
-MX23_PAD_EMI_DQM0__EMI_DQM0			0x3100
-MX23_PAD_EMI_DQM1__EMI_DQM1			0x3110
-MX23_PAD_EMI_DQS0__EMI_DQS0			0x3120
-MX23_PAD_EMI_DQS1__EMI_DQS1			0x3130
-MX23_PAD_EMI_CLK__EMI_CLK			0x3140
-MX23_PAD_EMI_CLKN__EMI_CLKN			0x3150
-MX23_PAD_GPMI_D00__LCD_D8			0x0001
-MX23_PAD_GPMI_D01__LCD_D9			0x0011
-MX23_PAD_GPMI_D02__LCD_D10			0x0021
-MX23_PAD_GPMI_D03__LCD_D11			0x0031
-MX23_PAD_GPMI_D04__LCD_D12			0x0041
-MX23_PAD_GPMI_D05__LCD_D13			0x0051
-MX23_PAD_GPMI_D06__LCD_D14			0x0061
-MX23_PAD_GPMI_D07__LCD_D15			0x0071
-MX23_PAD_GPMI_D08__LCD_D18			0x0081
-MX23_PAD_GPMI_D09__LCD_D19			0x0091
-MX23_PAD_GPMI_D10__LCD_D20			0x00a1
-MX23_PAD_GPMI_D11__LCD_D21			0x00b1
-MX23_PAD_GPMI_D12__LCD_D22			0x00c1
-MX23_PAD_GPMI_D13__LCD_D23			0x00d1
-MX23_PAD_GPMI_D14__AUART2_RX			0x00e1
-MX23_PAD_GPMI_D15__AUART2_TX			0x00f1
-MX23_PAD_GPMI_CLE__LCD_D16			0x0101
-MX23_PAD_GPMI_ALE__LCD_D17			0x0111
-MX23_PAD_GPMI_CE2N__ATA_A2			0x0121
-MX23_PAD_AUART1_RTS__IR_CLK			0x01b1
-MX23_PAD_AUART1_RX__IR_RX			0x01c1
-MX23_PAD_AUART1_TX__IR_TX			0x01d1
-MX23_PAD_I2C_SCL__GPMI_RDY2			0x01e1
-MX23_PAD_I2C_SDA__GPMI_CE2N			0x01f1
-MX23_PAD_LCD_D00__ETM_DA8			0x1001
-MX23_PAD_LCD_D01__ETM_DA9			0x1011
-MX23_PAD_LCD_D02__ETM_DA10			0x1021
-MX23_PAD_LCD_D03__ETM_DA11			0x1031
-MX23_PAD_LCD_D04__ETM_DA12			0x1041
-MX23_PAD_LCD_D05__ETM_DA13			0x1051
-MX23_PAD_LCD_D06__ETM_DA14			0x1061
-MX23_PAD_LCD_D07__ETM_DA15			0x1071
-MX23_PAD_LCD_D08__ETM_DA0			0x1081
-MX23_PAD_LCD_D09__ETM_DA1			0x1091
-MX23_PAD_LCD_D10__ETM_DA2			0x10a1
-MX23_PAD_LCD_D11__ETM_DA3			0x10b1
-MX23_PAD_LCD_D12__ETM_DA4			0x10c1
-MX23_PAD_LCD_D13__ETM_DA5			0x10d1
-MX23_PAD_LCD_D14__ETM_DA6			0x10e1
-MX23_PAD_LCD_D15__ETM_DA7			0x10f1
-MX23_PAD_LCD_RESET__ETM_TCTL			0x1121
-MX23_PAD_LCD_RS__ETM_TCLK			0x1131
-MX23_PAD_LCD_DOTCK__GPMI_RDY3			0x1161
-MX23_PAD_LCD_ENABLE__I2C_SCL			0x1171
-MX23_PAD_LCD_HSYNC__I2C_SDA			0x1181
-MX23_PAD_LCD_VSYNC__LCD_BUSY			0x1191
-MX23_PAD_PWM0__ROTARYA				0x11a1
-MX23_PAD_PWM1__ROTARYB				0x11b1
-MX23_PAD_PWM2__GPMI_RDY3			0x11c1
-MX23_PAD_PWM3__ETM_TCTL				0x11d1
-MX23_PAD_PWM4__ETM_TCLK				0x11e1
-MX23_PAD_SSP1_DETECT__GPMI_CE3N			0x2011
-MX23_PAD_SSP1_DATA1__I2C_SCL			0x2031
-MX23_PAD_SSP1_DATA2__I2C_SDA			0x2041
-MX23_PAD_ROTARYA__AUART2_RTS			0x2071
-MX23_PAD_ROTARYB__AUART2_CTS			0x2081
-MX23_PAD_GPMI_D00__SSP2_DATA0			0x0002
-MX23_PAD_GPMI_D01__SSP2_DATA1			0x0012
-MX23_PAD_GPMI_D02__SSP2_DATA2			0x0022
-MX23_PAD_GPMI_D03__SSP2_DATA3			0x0032
-MX23_PAD_GPMI_D04__SSP2_DATA4			0x0042
-MX23_PAD_GPMI_D05__SSP2_DATA5			0x0052
-MX23_PAD_GPMI_D06__SSP2_DATA6			0x0062
-MX23_PAD_GPMI_D07__SSP2_DATA7			0x0072
-MX23_PAD_GPMI_D08__SSP1_DATA4			0x0082
-MX23_PAD_GPMI_D09__SSP1_DATA5			0x0092
-MX23_PAD_GPMI_D10__SSP1_DATA6			0x00a2
-MX23_PAD_GPMI_D11__SSP1_DATA7			0x00b2
-MX23_PAD_GPMI_D15__GPMI_CE3N			0x00f2
-MX23_PAD_GPMI_RDY0__SSP2_DETECT			0x0132
-MX23_PAD_GPMI_RDY1__SSP2_CMD			0x0142
-MX23_PAD_GPMI_WRN__SSP2_SCK			0x0182
-MX23_PAD_AUART1_CTS__SSP1_DATA4			0x01a2
-MX23_PAD_AUART1_RTS__SSP1_DATA5			0x01b2
-MX23_PAD_AUART1_RX__SSP1_DATA6			0x01c2
-MX23_PAD_AUART1_TX__SSP1_DATA7			0x01d2
-MX23_PAD_I2C_SCL__AUART1_TX			0x01e2
-MX23_PAD_I2C_SDA__AUART1_RX			0x01f2
-MX23_PAD_LCD_D08__SAIF2_SDATA0			0x1082
-MX23_PAD_LCD_D09__SAIF1_SDATA0			0x1092
-MX23_PAD_LCD_D10__SAIF_MCLK_BITCLK		0x10a2
-MX23_PAD_LCD_D11__SAIF_LRCLK			0x10b2
-MX23_PAD_LCD_D12__SAIF2_SDATA1			0x10c2
-MX23_PAD_LCD_D13__SAIF2_SDATA2			0x10d2
-MX23_PAD_LCD_D14__SAIF1_SDATA2			0x10e2
-MX23_PAD_LCD_D15__SAIF1_SDATA1			0x10f2
-MX23_PAD_LCD_D16__SAIF_ALT_BITCLK		0x1102
-MX23_PAD_LCD_RESET__GPMI_CE3N			0x1122
-MX23_PAD_PWM0__DUART_RX				0x11a2
-MX23_PAD_PWM1__DUART_TX				0x11b2
-MX23_PAD_PWM3__AUART1_CTS			0x11d2
-MX23_PAD_PWM4__AUART1_RTS			0x11e2
-MX23_PAD_SSP1_CMD__JTAG_TDO			0x2002
-MX23_PAD_SSP1_DETECT__USB_OTG_ID		0x2012
-MX23_PAD_SSP1_DATA0__JTAG_TDI			0x2022
-MX23_PAD_SSP1_DATA1__JTAG_TCLK			0x2032
-MX23_PAD_SSP1_DATA2__JTAG_RTCK			0x2042
-MX23_PAD_SSP1_DATA3__JTAG_TMS			0x2052
-MX23_PAD_SSP1_SCK__JTAG_TRST			0x2062
-MX23_PAD_ROTARYA__SPDIF				0x2072
-MX23_PAD_ROTARYB__GPMI_CE3N			0x2082
-MX23_PAD_GPMI_D00__GPIO_0_0			0x0003
-MX23_PAD_GPMI_D01__GPIO_0_1			0x0013
-MX23_PAD_GPMI_D02__GPIO_0_2			0x0023
-MX23_PAD_GPMI_D03__GPIO_0_3			0x0033
-MX23_PAD_GPMI_D04__GPIO_0_4			0x0043
-MX23_PAD_GPMI_D05__GPIO_0_5			0x0053
-MX23_PAD_GPMI_D06__GPIO_0_6			0x0063
-MX23_PAD_GPMI_D07__GPIO_0_7			0x0073
-MX23_PAD_GPMI_D08__GPIO_0_8			0x0083
-MX23_PAD_GPMI_D09__GPIO_0_9			0x0093
-MX23_PAD_GPMI_D10__GPIO_0_10			0x00a3
-MX23_PAD_GPMI_D11__GPIO_0_11			0x00b3
-MX23_PAD_GPMI_D12__GPIO_0_12			0x00c3
-MX23_PAD_GPMI_D13__GPIO_0_13			0x00d3
-MX23_PAD_GPMI_D14__GPIO_0_14			0x00e3
-MX23_PAD_GPMI_D15__GPIO_0_15			0x00f3
-MX23_PAD_GPMI_CLE__GPIO_0_16			0x0103
-MX23_PAD_GPMI_ALE__GPIO_0_17			0x0113
-MX23_PAD_GPMI_CE2N__GPIO_0_18			0x0123
-MX23_PAD_GPMI_RDY0__GPIO_0_19			0x0133
-MX23_PAD_GPMI_RDY1__GPIO_0_20			0x0143
-MX23_PAD_GPMI_RDY2__GPIO_0_21			0x0153
-MX23_PAD_GPMI_RDY3__GPIO_0_22			0x0163
-MX23_PAD_GPMI_WPN__GPIO_0_23			0x0173
-MX23_PAD_GPMI_WRN__GPIO_0_24			0x0183
-MX23_PAD_GPMI_RDN__GPIO_0_25			0x0193
-MX23_PAD_AUART1_CTS__GPIO_0_26			0x01a3
-MX23_PAD_AUART1_RTS__GPIO_0_27			0x01b3
-MX23_PAD_AUART1_RX__GPIO_0_28			0x01c3
-MX23_PAD_AUART1_TX__GPIO_0_29			0x01d3
-MX23_PAD_I2C_SCL__GPIO_0_30			0x01e3
-MX23_PAD_I2C_SDA__GPIO_0_31			0x01f3
-MX23_PAD_LCD_D00__GPIO_1_0			0x1003
-MX23_PAD_LCD_D01__GPIO_1_1			0x1013
-MX23_PAD_LCD_D02__GPIO_1_2			0x1023
-MX23_PAD_LCD_D03__GPIO_1_3			0x1033
-MX23_PAD_LCD_D04__GPIO_1_4			0x1043
-MX23_PAD_LCD_D05__GPIO_1_5			0x1053
-MX23_PAD_LCD_D06__GPIO_1_6			0x1063
-MX23_PAD_LCD_D07__GPIO_1_7			0x1073
-MX23_PAD_LCD_D08__GPIO_1_8			0x1083
-MX23_PAD_LCD_D09__GPIO_1_9			0x1093
-MX23_PAD_LCD_D10__GPIO_1_10			0x10a3
-MX23_PAD_LCD_D11__GPIO_1_11			0x10b3
-MX23_PAD_LCD_D12__GPIO_1_12			0x10c3
-MX23_PAD_LCD_D13__GPIO_1_13			0x10d3
-MX23_PAD_LCD_D14__GPIO_1_14			0x10e3
-MX23_PAD_LCD_D15__GPIO_1_15			0x10f3
-MX23_PAD_LCD_D16__GPIO_1_16			0x1103
-MX23_PAD_LCD_D17__GPIO_1_17			0x1113
-MX23_PAD_LCD_RESET__GPIO_1_18			0x1123
-MX23_PAD_LCD_RS__GPIO_1_19			0x1133
-MX23_PAD_LCD_WR__GPIO_1_20			0x1143
-MX23_PAD_LCD_CS__GPIO_1_21			0x1153
-MX23_PAD_LCD_DOTCK__GPIO_1_22			0x1163
-MX23_PAD_LCD_ENABLE__GPIO_1_23			0x1173
-MX23_PAD_LCD_HSYNC__GPIO_1_24			0x1183
-MX23_PAD_LCD_VSYNC__GPIO_1_25			0x1193
-MX23_PAD_PWM0__GPIO_1_26			0x11a3
-MX23_PAD_PWM1__GPIO_1_27			0x11b3
-MX23_PAD_PWM2__GPIO_1_28			0x11c3
-MX23_PAD_PWM3__GPIO_1_29			0x11d3
-MX23_PAD_PWM4__GPIO_1_30			0x11e3
-MX23_PAD_SSP1_CMD__GPIO_2_0			0x2003
-MX23_PAD_SSP1_DETECT__GPIO_2_1			0x2013
-MX23_PAD_SSP1_DATA0__GPIO_2_2			0x2023
-MX23_PAD_SSP1_DATA1__GPIO_2_3			0x2033
-MX23_PAD_SSP1_DATA2__GPIO_2_4			0x2043
-MX23_PAD_SSP1_DATA3__GPIO_2_5			0x2053
-MX23_PAD_SSP1_SCK__GPIO_2_6			0x2063
-MX23_PAD_ROTARYA__GPIO_2_7			0x2073
-MX23_PAD_ROTARYB__GPIO_2_8			0x2083
-MX23_PAD_EMI_A00__GPIO_2_9			0x2093
-MX23_PAD_EMI_A01__GPIO_2_10			0x20a3
-MX23_PAD_EMI_A02__GPIO_2_11			0x20b3
-MX23_PAD_EMI_A03__GPIO_2_12			0x20c3
-MX23_PAD_EMI_A04__GPIO_2_13			0x20d3
-MX23_PAD_EMI_A05__GPIO_2_14			0x20e3
-MX23_PAD_EMI_A06__GPIO_2_15			0x20f3
-MX23_PAD_EMI_A07__GPIO_2_16			0x2103
-MX23_PAD_EMI_A08__GPIO_2_17			0x2113
-MX23_PAD_EMI_A09__GPIO_2_18			0x2123
-MX23_PAD_EMI_A10__GPIO_2_19			0x2133
-MX23_PAD_EMI_A11__GPIO_2_20			0x2143
-MX23_PAD_EMI_A12__GPIO_2_21			0x2153
-MX23_PAD_EMI_BA0__GPIO_2_22			0x2163
-MX23_PAD_EMI_BA1__GPIO_2_23			0x2173
-MX23_PAD_EMI_CASN__GPIO_2_24			0x2183
-MX23_PAD_EMI_CE0N__GPIO_2_25			0x2193
-MX23_PAD_EMI_CE1N__GPIO_2_26			0x21a3
-MX23_PAD_GPMI_CE1N__GPIO_2_27			0x21b3
-MX23_PAD_GPMI_CE0N__GPIO_2_28			0x21c3
-MX23_PAD_EMI_CKE__GPIO_2_29			0x21d3
-MX23_PAD_EMI_RASN__GPIO_2_30			0x21e3
-MX23_PAD_EMI_WEN__GPIO_2_31			0x21f3
+Valid values for i.MX28/i.MX23 pinmux-id are defined in
+arch/arm/boot/dts/imx28-pinfunc.h and arch/arm/boot/dts/imx23-pinfunc.h.
+The definitions for the padconfig properties can be found in
+arch/arm/boot/dts/mxs-pinfunc.h.
diff --git a/arch/arm/boot/dts/imx23-pinfunc.h b/arch/arm/boot/dts/imx23-pinfunc.h
new file mode 100644
index 000000000000..5c0f32ca3a93
--- /dev/null
+++ b/arch/arm/boot/dts/imx23-pinfunc.h
@@ -0,0 +1,333 @@
+/*
+ * Header providing constants for i.MX23 pinctrl bindings.
+ *
+ * Copyright (C) 2013 Lothar Waßmann <LW@KARO-electronics.de>
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#ifndef __DT_BINDINGS_MX23_PINCTRL_H__
+#define __DT_BINDINGS_MX23_PINCTRL_H__
+
+#include "mxs-pinfunc.h"
+
+#define MX23_PAD_GPMI_D00__GPMI_D00			0x0000
+#define MX23_PAD_GPMI_D01__GPMI_D01			0x0010
+#define MX23_PAD_GPMI_D02__GPMI_D02			0x0020
+#define MX23_PAD_GPMI_D03__GPMI_D03			0x0030
+#define MX23_PAD_GPMI_D04__GPMI_D04			0x0040
+#define MX23_PAD_GPMI_D05__GPMI_D05			0x0050
+#define MX23_PAD_GPMI_D06__GPMI_D06			0x0060
+#define MX23_PAD_GPMI_D07__GPMI_D07			0x0070
+#define MX23_PAD_GPMI_D08__GPMI_D08			0x0080
+#define MX23_PAD_GPMI_D09__GPMI_D09			0x0090
+#define MX23_PAD_GPMI_D10__GPMI_D10			0x00a0
+#define MX23_PAD_GPMI_D11__GPMI_D11			0x00b0
+#define MX23_PAD_GPMI_D12__GPMI_D12			0x00c0
+#define MX23_PAD_GPMI_D13__GPMI_D13			0x00d0
+#define MX23_PAD_GPMI_D14__GPMI_D14			0x00e0
+#define MX23_PAD_GPMI_D15__GPMI_D15			0x00f0
+#define MX23_PAD_GPMI_CLE__GPMI_CLE			0x0100
+#define MX23_PAD_GPMI_ALE__GPMI_ALE			0x0110
+#define MX23_PAD_GPMI_CE2N__GPMI_CE2N			0x0120
+#define MX23_PAD_GPMI_RDY0__GPMI_RDY0			0x0130
+#define MX23_PAD_GPMI_RDY1__GPMI_RDY1			0x0140
+#define MX23_PAD_GPMI_RDY2__GPMI_RDY2			0x0150
+#define MX23_PAD_GPMI_RDY3__GPMI_RDY3			0x0160
+#define MX23_PAD_GPMI_WPN__GPMI_WPN			0x0170
+#define MX23_PAD_GPMI_WRN__GPMI_WRN			0x0180
+#define MX23_PAD_GPMI_RDN__GPMI_RDN			0x0190
+#define MX23_PAD_AUART1_CTS__AUART1_CTS			0x01a0
+#define MX23_PAD_AUART1_RTS__AUART1_RTS			0x01b0
+#define MX23_PAD_AUART1_RX__AUART1_RX			0x01c0
+#define MX23_PAD_AUART1_TX__AUART1_TX			0x01d0
+#define MX23_PAD_I2C_SCL__I2C_SCL			0x01e0
+#define MX23_PAD_I2C_SDA__I2C_SDA			0x01f0
+#define MX23_PAD_LCD_D00__LCD_D00			0x1000
+#define MX23_PAD_LCD_D01__LCD_D01			0x1010
+#define MX23_PAD_LCD_D02__LCD_D02			0x1020
+#define MX23_PAD_LCD_D03__LCD_D03			0x1030
+#define MX23_PAD_LCD_D04__LCD_D04			0x1040
+#define MX23_PAD_LCD_D05__LCD_D05			0x1050
+#define MX23_PAD_LCD_D06__LCD_D06			0x1060
+#define MX23_PAD_LCD_D07__LCD_D07			0x1070
+#define MX23_PAD_LCD_D08__LCD_D08			0x1080
+#define MX23_PAD_LCD_D09__LCD_D09			0x1090
+#define MX23_PAD_LCD_D10__LCD_D10			0x10a0
+#define MX23_PAD_LCD_D11__LCD_D11			0x10b0
+#define MX23_PAD_LCD_D12__LCD_D12			0x10c0
+#define MX23_PAD_LCD_D13__LCD_D13			0x10d0
+#define MX23_PAD_LCD_D14__LCD_D14			0x10e0
+#define MX23_PAD_LCD_D15__LCD_D15			0x10f0
+#define MX23_PAD_LCD_D16__LCD_D16			0x1100
+#define MX23_PAD_LCD_D17__LCD_D17			0x1110
+#define MX23_PAD_LCD_RESET__LCD_RESET			0x1120
+#define MX23_PAD_LCD_RS__LCD_RS				0x1130
+#define MX23_PAD_LCD_WR__LCD_WR				0x1140
+#define MX23_PAD_LCD_CS__LCD_CS				0x1150
+#define MX23_PAD_LCD_DOTCK__LCD_DOTCK			0x1160
+#define MX23_PAD_LCD_ENABLE__LCD_ENABLE			0x1170
+#define MX23_PAD_LCD_HSYNC__LCD_HSYNC			0x1180
+#define MX23_PAD_LCD_VSYNC__LCD_VSYNC			0x1190
+#define MX23_PAD_PWM0__PWM0				0x11a0
+#define MX23_PAD_PWM1__PWM1				0x11b0
+#define MX23_PAD_PWM2__PWM2				0x11c0
+#define MX23_PAD_PWM3__PWM3				0x11d0
+#define MX23_PAD_PWM4__PWM4				0x11e0
+#define MX23_PAD_SSP1_CMD__SSP1_CMD			0x2000
+#define MX23_PAD_SSP1_DETECT__SSP1_DETECT		0x2010
+#define MX23_PAD_SSP1_DATA0__SSP1_DATA0			0x2020
+#define MX23_PAD_SSP1_DATA1__SSP1_DATA1			0x2030
+#define MX23_PAD_SSP1_DATA2__SSP1_DATA2			0x2040
+#define MX23_PAD_SSP1_DATA3__SSP1_DATA3			0x2050
+#define MX23_PAD_SSP1_SCK__SSP1_SCK			0x2060
+#define MX23_PAD_ROTARYA__ROTARYA			0x2070
+#define MX23_PAD_ROTARYB__ROTARYB			0x2080
+#define MX23_PAD_EMI_A00__EMI_A00			0x2090
+#define MX23_PAD_EMI_A01__EMI_A01			0x20a0
+#define MX23_PAD_EMI_A02__EMI_A02			0x20b0
+#define MX23_PAD_EMI_A03__EMI_A03			0x20c0
+#define MX23_PAD_EMI_A04__EMI_A04			0x20d0
+#define MX23_PAD_EMI_A05__EMI_A05			0x20e0
+#define MX23_PAD_EMI_A06__EMI_A06			0x20f0
+#define MX23_PAD_EMI_A07__EMI_A07			0x2100
+#define MX23_PAD_EMI_A08__EMI_A08			0x2110
+#define MX23_PAD_EMI_A09__EMI_A09			0x2120
+#define MX23_PAD_EMI_A10__EMI_A10			0x2130
+#define MX23_PAD_EMI_A11__EMI_A11			0x2140
+#define MX23_PAD_EMI_A12__EMI_A12			0x2150
+#define MX23_PAD_EMI_BA0__EMI_BA0			0x2160
+#define MX23_PAD_EMI_BA1__EMI_BA1			0x2170
+#define MX23_PAD_EMI_CASN__EMI_CASN			0x2180
+#define MX23_PAD_EMI_CE0N__EMI_CE0N			0x2190
+#define MX23_PAD_EMI_CE1N__EMI_CE1N			0x21a0
+#define MX23_PAD_GPMI_CE1N__GPMI_CE1N			0x21b0
+#define MX23_PAD_GPMI_CE0N__GPMI_CE0N			0x21c0
+#define MX23_PAD_EMI_CKE__EMI_CKE			0x21d0
+#define MX23_PAD_EMI_RASN__EMI_RASN			0x21e0
+#define MX23_PAD_EMI_WEN__EMI_WEN			0x21f0
+#define MX23_PAD_EMI_D00__EMI_D00			0x3000
+#define MX23_PAD_EMI_D01__EMI_D01			0x3010
+#define MX23_PAD_EMI_D02__EMI_D02			0x3020
+#define MX23_PAD_EMI_D03__EMI_D03			0x3030
+#define MX23_PAD_EMI_D04__EMI_D04			0x3040
+#define MX23_PAD_EMI_D05__EMI_D05			0x3050
+#define MX23_PAD_EMI_D06__EMI_D06			0x3060
+#define MX23_PAD_EMI_D07__EMI_D07			0x3070
+#define MX23_PAD_EMI_D08__EMI_D08			0x3080
+#define MX23_PAD_EMI_D09__EMI_D09			0x3090
+#define MX23_PAD_EMI_D10__EMI_D10			0x30a0
+#define MX23_PAD_EMI_D11__EMI_D11			0x30b0
+#define MX23_PAD_EMI_D12__EMI_D12			0x30c0
+#define MX23_PAD_EMI_D13__EMI_D13			0x30d0
+#define MX23_PAD_EMI_D14__EMI_D14			0x30e0
+#define MX23_PAD_EMI_D15__EMI_D15			0x30f0
+#define MX23_PAD_EMI_DQM0__EMI_DQM0			0x3100
+#define MX23_PAD_EMI_DQM1__EMI_DQM1			0x3110
+#define MX23_PAD_EMI_DQS0__EMI_DQS0			0x3120
+#define MX23_PAD_EMI_DQS1__EMI_DQS1			0x3130
+#define MX23_PAD_EMI_CLK__EMI_CLK			0x3140
+#define MX23_PAD_EMI_CLKN__EMI_CLKN			0x3150
+#define MX23_PAD_GPMI_D00__LCD_D8			0x0001
+#define MX23_PAD_GPMI_D01__LCD_D9			0x0011
+#define MX23_PAD_GPMI_D02__LCD_D10			0x0021
+#define MX23_PAD_GPMI_D03__LCD_D11			0x0031
+#define MX23_PAD_GPMI_D04__LCD_D12			0x0041
+#define MX23_PAD_GPMI_D05__LCD_D13			0x0051
+#define MX23_PAD_GPMI_D06__LCD_D14			0x0061
+#define MX23_PAD_GPMI_D07__LCD_D15			0x0071
+#define MX23_PAD_GPMI_D08__LCD_D18			0x0081
+#define MX23_PAD_GPMI_D09__LCD_D19			0x0091
+#define MX23_PAD_GPMI_D10__LCD_D20			0x00a1
+#define MX23_PAD_GPMI_D11__LCD_D21			0x00b1
+#define MX23_PAD_GPMI_D12__LCD_D22			0x00c1
+#define MX23_PAD_GPMI_D13__LCD_D23			0x00d1
+#define MX23_PAD_GPMI_D14__AUART2_RX			0x00e1
+#define MX23_PAD_GPMI_D15__AUART2_TX			0x00f1
+#define MX23_PAD_GPMI_CLE__LCD_D16			0x0101
+#define MX23_PAD_GPMI_ALE__LCD_D17			0x0111
+#define MX23_PAD_GPMI_CE2N__ATA_A2			0x0121
+#define MX23_PAD_AUART1_RTS__IR_CLK			0x01b1
+#define MX23_PAD_AUART1_RX__IR_RX			0x01c1
+#define MX23_PAD_AUART1_TX__IR_TX			0x01d1
+#define MX23_PAD_I2C_SCL__GPMI_RDY2			0x01e1
+#define MX23_PAD_I2C_SDA__GPMI_CE2N			0x01f1
+#define MX23_PAD_LCD_D00__ETM_DA8			0x1001
+#define MX23_PAD_LCD_D01__ETM_DA9			0x1011
+#define MX23_PAD_LCD_D02__ETM_DA10			0x1021
+#define MX23_PAD_LCD_D03__ETM_DA11			0x1031
+#define MX23_PAD_LCD_D04__ETM_DA12			0x1041
+#define MX23_PAD_LCD_D05__ETM_DA13			0x1051
+#define MX23_PAD_LCD_D06__ETM_DA14			0x1061
+#define MX23_PAD_LCD_D07__ETM_DA15			0x1071
+#define MX23_PAD_LCD_D08__ETM_DA0			0x1081
+#define MX23_PAD_LCD_D09__ETM_DA1			0x1091
+#define MX23_PAD_LCD_D10__ETM_DA2			0x10a1
+#define MX23_PAD_LCD_D11__ETM_DA3			0x10b1
+#define MX23_PAD_LCD_D12__ETM_DA4			0x10c1
+#define MX23_PAD_LCD_D13__ETM_DA5			0x10d1
+#define MX23_PAD_LCD_D14__ETM_DA6			0x10e1
+#define MX23_PAD_LCD_D15__ETM_DA7			0x10f1
+#define MX23_PAD_LCD_RESET__ETM_TCTL			0x1121
+#define MX23_PAD_LCD_RS__ETM_TCLK			0x1131
+#define MX23_PAD_LCD_DOTCK__GPMI_RDY3			0x1161
+#define MX23_PAD_LCD_ENABLE__I2C_SCL			0x1171
+#define MX23_PAD_LCD_HSYNC__I2C_SDA			0x1181
+#define MX23_PAD_LCD_VSYNC__LCD_BUSY			0x1191
+#define MX23_PAD_PWM0__ROTARYA				0x11a1
+#define MX23_PAD_PWM1__ROTARYB				0x11b1
+#define MX23_PAD_PWM2__GPMI_RDY3			0x11c1
+#define MX23_PAD_PWM3__ETM_TCTL				0x11d1
+#define MX23_PAD_PWM4__ETM_TCLK				0x11e1
+#define MX23_PAD_SSP1_DETECT__GPMI_CE3N			0x2011
+#define MX23_PAD_SSP1_DATA1__I2C_SCL			0x2031
+#define MX23_PAD_SSP1_DATA2__I2C_SDA			0x2041
+#define MX23_PAD_ROTARYA__AUART2_RTS			0x2071
+#define MX23_PAD_ROTARYB__AUART2_CTS			0x2081
+#define MX23_PAD_GPMI_D00__SSP2_DATA0			0x0002
+#define MX23_PAD_GPMI_D01__SSP2_DATA1			0x0012
+#define MX23_PAD_GPMI_D02__SSP2_DATA2			0x0022
+#define MX23_PAD_GPMI_D03__SSP2_DATA3			0x0032
+#define MX23_PAD_GPMI_D04__SSP2_DATA4			0x0042
+#define MX23_PAD_GPMI_D05__SSP2_DATA5			0x0052
+#define MX23_PAD_GPMI_D06__SSP2_DATA6			0x0062
+#define MX23_PAD_GPMI_D07__SSP2_DATA7			0x0072
+#define MX23_PAD_GPMI_D08__SSP1_DATA4			0x0082
+#define MX23_PAD_GPMI_D09__SSP1_DATA5			0x0092
+#define MX23_PAD_GPMI_D10__SSP1_DATA6			0x00a2
+#define MX23_PAD_GPMI_D11__SSP1_DATA7			0x00b2
+#define MX23_PAD_GPMI_D15__GPMI_CE3N			0x00f2
+#define MX23_PAD_GPMI_RDY0__SSP2_DETECT			0x0132
+#define MX23_PAD_GPMI_RDY1__SSP2_CMD			0x0142
+#define MX23_PAD_GPMI_WRN__SSP2_SCK			0x0182
+#define MX23_PAD_AUART1_CTS__SSP1_DATA4			0x01a2
+#define MX23_PAD_AUART1_RTS__SSP1_DATA5			0x01b2
+#define MX23_PAD_AUART1_RX__SSP1_DATA6			0x01c2
+#define MX23_PAD_AUART1_TX__SSP1_DATA7			0x01d2
+#define MX23_PAD_I2C_SCL__AUART1_TX			0x01e2
+#define MX23_PAD_I2C_SDA__AUART1_RX			0x01f2
+#define MX23_PAD_LCD_D08__SAIF2_SDATA0			0x1082
+#define MX23_PAD_LCD_D09__SAIF1_SDATA0			0x1092
+#define MX23_PAD_LCD_D10__SAIF_MCLK_BITCLK		0x10a2
+#define MX23_PAD_LCD_D11__SAIF_LRCLK			0x10b2
+#define MX23_PAD_LCD_D12__SAIF2_SDATA1			0x10c2
+#define MX23_PAD_LCD_D13__SAIF2_SDATA2			0x10d2
+#define MX23_PAD_LCD_D14__SAIF1_SDATA2			0x10e2
+#define MX23_PAD_LCD_D15__SAIF1_SDATA1			0x10f2
+#define MX23_PAD_LCD_D16__SAIF_ALT_BITCLK		0x1102
+#define MX23_PAD_LCD_RESET__GPMI_CE3N			0x1122
+#define MX23_PAD_PWM0__DUART_RX				0x11a2
+#define MX23_PAD_PWM1__DUART_TX				0x11b2
+#define MX23_PAD_PWM3__AUART1_CTS			0x11d2
+#define MX23_PAD_PWM4__AUART1_RTS			0x11e2
+#define MX23_PAD_SSP1_CMD__JTAG_TDO			0x2002
+#define MX23_PAD_SSP1_DETECT__USB_OTG_ID		0x2012
+#define MX23_PAD_SSP1_DATA0__JTAG_TDI			0x2022
+#define MX23_PAD_SSP1_DATA1__JTAG_TCLK			0x2032
+#define MX23_PAD_SSP1_DATA2__JTAG_RTCK			0x2042
+#define MX23_PAD_SSP1_DATA3__JTAG_TMS			0x2052
+#define MX23_PAD_SSP1_SCK__JTAG_TRST			0x2062
+#define MX23_PAD_ROTARYA__SPDIF				0x2072
+#define MX23_PAD_ROTARYB__GPMI_CE3N			0x2082
+#define MX23_PAD_GPMI_D00__GPIO_0_0			0x0003
+#define MX23_PAD_GPMI_D01__GPIO_0_1			0x0013
+#define MX23_PAD_GPMI_D02__GPIO_0_2			0x0023
+#define MX23_PAD_GPMI_D03__GPIO_0_3			0x0033
+#define MX23_PAD_GPMI_D04__GPIO_0_4			0x0043
+#define MX23_PAD_GPMI_D05__GPIO_0_5			0x0053
+#define MX23_PAD_GPMI_D06__GPIO_0_6			0x0063
+#define MX23_PAD_GPMI_D07__GPIO_0_7			0x0073
+#define MX23_PAD_GPMI_D08__GPIO_0_8			0x0083
+#define MX23_PAD_GPMI_D09__GPIO_0_9			0x0093
+#define MX23_PAD_GPMI_D10__GPIO_0_10			0x00a3
+#define MX23_PAD_GPMI_D11__GPIO_0_11			0x00b3
+#define MX23_PAD_GPMI_D12__GPIO_0_12			0x00c3
+#define MX23_PAD_GPMI_D13__GPIO_0_13			0x00d3
+#define MX23_PAD_GPMI_D14__GPIO_0_14			0x00e3
+#define MX23_PAD_GPMI_D15__GPIO_0_15			0x00f3
+#define MX23_PAD_GPMI_CLE__GPIO_0_16			0x0103
+#define MX23_PAD_GPMI_ALE__GPIO_0_17			0x0113
+#define MX23_PAD_GPMI_CE2N__GPIO_0_18			0x0123
+#define MX23_PAD_GPMI_RDY0__GPIO_0_19			0x0133
+#define MX23_PAD_GPMI_RDY1__GPIO_0_20			0x0143
+#define MX23_PAD_GPMI_RDY2__GPIO_0_21			0x0153
+#define MX23_PAD_GPMI_RDY3__GPIO_0_22			0x0163
+#define MX23_PAD_GPMI_WPN__GPIO_0_23			0x0173
+#define MX23_PAD_GPMI_WRN__GPIO_0_24			0x0183
+#define MX23_PAD_GPMI_RDN__GPIO_0_25			0x0193
+#define MX23_PAD_AUART1_CTS__GPIO_0_26			0x01a3
+#define MX23_PAD_AUART1_RTS__GPIO_0_27			0x01b3
+#define MX23_PAD_AUART1_RX__GPIO_0_28			0x01c3
+#define MX23_PAD_AUART1_TX__GPIO_0_29			0x01d3
+#define MX23_PAD_I2C_SCL__GPIO_0_30			0x01e3
+#define MX23_PAD_I2C_SDA__GPIO_0_31			0x01f3
+#define MX23_PAD_LCD_D00__GPIO_1_0			0x1003
+#define MX23_PAD_LCD_D01__GPIO_1_1			0x1013
+#define MX23_PAD_LCD_D02__GPIO_1_2			0x1023
+#define MX23_PAD_LCD_D03__GPIO_1_3			0x1033
+#define MX23_PAD_LCD_D04__GPIO_1_4			0x1043
+#define MX23_PAD_LCD_D05__GPIO_1_5			0x1053
+#define MX23_PAD_LCD_D06__GPIO_1_6			0x1063
+#define MX23_PAD_LCD_D07__GPIO_1_7			0x1073
+#define MX23_PAD_LCD_D08__GPIO_1_8			0x1083
+#define MX23_PAD_LCD_D09__GPIO_1_9			0x1093
+#define MX23_PAD_LCD_D10__GPIO_1_10			0x10a3
+#define MX23_PAD_LCD_D11__GPIO_1_11			0x10b3
+#define MX23_PAD_LCD_D12__GPIO_1_12			0x10c3
+#define MX23_PAD_LCD_D13__GPIO_1_13			0x10d3
+#define MX23_PAD_LCD_D14__GPIO_1_14			0x10e3
+#define MX23_PAD_LCD_D15__GPIO_1_15			0x10f3
+#define MX23_PAD_LCD_D16__GPIO_1_16			0x1103
+#define MX23_PAD_LCD_D17__GPIO_1_17			0x1113
+#define MX23_PAD_LCD_RESET__GPIO_1_18			0x1123
+#define MX23_PAD_LCD_RS__GPIO_1_19			0x1133
+#define MX23_PAD_LCD_WR__GPIO_1_20			0x1143
+#define MX23_PAD_LCD_CS__GPIO_1_21			0x1153
+#define MX23_PAD_LCD_DOTCK__GPIO_1_22			0x1163
+#define MX23_PAD_LCD_ENABLE__GPIO_1_23			0x1173
+#define MX23_PAD_LCD_HSYNC__GPIO_1_24			0x1183
+#define MX23_PAD_LCD_VSYNC__GPIO_1_25			0x1193
+#define MX23_PAD_PWM0__GPIO_1_26			0x11a3
+#define MX23_PAD_PWM1__GPIO_1_27			0x11b3
+#define MX23_PAD_PWM2__GPIO_1_28			0x11c3
+#define MX23_PAD_PWM3__GPIO_1_29			0x11d3
+#define MX23_PAD_PWM4__GPIO_1_30			0x11e3
+#define MX23_PAD_SSP1_CMD__GPIO_2_0			0x2003
+#define MX23_PAD_SSP1_DETECT__GPIO_2_1			0x2013
+#define MX23_PAD_SSP1_DATA0__GPIO_2_2			0x2023
+#define MX23_PAD_SSP1_DATA1__GPIO_2_3			0x2033
+#define MX23_PAD_SSP1_DATA2__GPIO_2_4			0x2043
+#define MX23_PAD_SSP1_DATA3__GPIO_2_5			0x2053
+#define MX23_PAD_SSP1_SCK__GPIO_2_6			0x2063
+#define MX23_PAD_ROTARYA__GPIO_2_7			0x2073
+#define MX23_PAD_ROTARYB__GPIO_2_8			0x2083
+#define MX23_PAD_EMI_A00__GPIO_2_9			0x2093
+#define MX23_PAD_EMI_A01__GPIO_2_10			0x20a3
+#define MX23_PAD_EMI_A02__GPIO_2_11			0x20b3
+#define MX23_PAD_EMI_A03__GPIO_2_12			0x20c3
+#define MX23_PAD_EMI_A04__GPIO_2_13			0x20d3
+#define MX23_PAD_EMI_A05__GPIO_2_14			0x20e3
+#define MX23_PAD_EMI_A06__GPIO_2_15			0x20f3
+#define MX23_PAD_EMI_A07__GPIO_2_16			0x2103
+#define MX23_PAD_EMI_A08__GPIO_2_17			0x2113
+#define MX23_PAD_EMI_A09__GPIO_2_18			0x2123
+#define MX23_PAD_EMI_A10__GPIO_2_19			0x2133
+#define MX23_PAD_EMI_A11__GPIO_2_20			0x2143
+#define MX23_PAD_EMI_A12__GPIO_2_21			0x2153
+#define MX23_PAD_EMI_BA0__GPIO_2_22			0x2163
+#define MX23_PAD_EMI_BA1__GPIO_2_23			0x2173
+#define MX23_PAD_EMI_CASN__GPIO_2_24			0x2183
+#define MX23_PAD_EMI_CE0N__GPIO_2_25			0x2193
+#define MX23_PAD_EMI_CE1N__GPIO_2_26			0x21a3
+#define MX23_PAD_GPMI_CE1N__GPIO_2_27			0x21b3
+#define MX23_PAD_GPMI_CE0N__GPIO_2_28			0x21c3
+#define MX23_PAD_EMI_CKE__GPIO_2_29			0x21d3
+#define MX23_PAD_EMI_RASN__GPIO_2_30			0x21e3
+#define MX23_PAD_EMI_WEN__GPIO_2_31			0x21f3
+
+#endif /* __DT_BINDINGS_MX23_PINCTRL_H__ */
diff --git a/arch/arm/boot/dts/imx28-pinfunc.h b/arch/arm/boot/dts/imx28-pinfunc.h
new file mode 100644
index 000000000000..e11f69ba0fe4
--- /dev/null
+++ b/arch/arm/boot/dts/imx28-pinfunc.h
@@ -0,0 +1,506 @@
+/*
+ * Header providing constants for i.MX28 pinctrl bindings.
+ *
+ * Copyright (C) 2013 Lothar Waßmann <LW@KARO-electronics.de>
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#ifndef __DT_BINDINGS_MX28_PINCTRL_H__
+#define __DT_BINDINGS_MX28_PINCTRL_H__
+
+#include "mxs-pinfunc.h"
+
+#define MX28_PAD_GPMI_D00__GPMI_D0			0x0000
+#define MX28_PAD_GPMI_D01__GPMI_D1			0x0010
+#define MX28_PAD_GPMI_D02__GPMI_D2			0x0020
+#define MX28_PAD_GPMI_D03__GPMI_D3			0x0030
+#define MX28_PAD_GPMI_D04__GPMI_D4			0x0040
+#define MX28_PAD_GPMI_D05__GPMI_D5			0x0050
+#define MX28_PAD_GPMI_D06__GPMI_D6			0x0060
+#define MX28_PAD_GPMI_D07__GPMI_D7			0x0070
+#define MX28_PAD_GPMI_CE0N__GPMI_CE0N			0x0100
+#define MX28_PAD_GPMI_CE1N__GPMI_CE1N			0x0110
+#define MX28_PAD_GPMI_CE2N__GPMI_CE2N			0x0120
+#define MX28_PAD_GPMI_CE3N__GPMI_CE3N			0x0130
+#define MX28_PAD_GPMI_RDY0__GPMI_READY0			0x0140
+#define MX28_PAD_GPMI_RDY1__GPMI_READY1			0x0150
+#define MX28_PAD_GPMI_RDY2__GPMI_READY2			0x0160
+#define MX28_PAD_GPMI_RDY3__GPMI_READY3			0x0170
+#define MX28_PAD_GPMI_RDN__GPMI_RDN			0x0180
+#define MX28_PAD_GPMI_WRN__GPMI_WRN			0x0190
+#define MX28_PAD_GPMI_ALE__GPMI_ALE			0x01a0
+#define MX28_PAD_GPMI_CLE__GPMI_CLE			0x01b0
+#define MX28_PAD_GPMI_RESETN__GPMI_RESETN		0x01c0
+#define MX28_PAD_LCD_D00__LCD_D0			0x1000
+#define MX28_PAD_LCD_D01__LCD_D1			0x1010
+#define MX28_PAD_LCD_D02__LCD_D2			0x1020
+#define MX28_PAD_LCD_D03__LCD_D3			0x1030
+#define MX28_PAD_LCD_D04__LCD_D4			0x1040
+#define MX28_PAD_LCD_D05__LCD_D5			0x1050
+#define MX28_PAD_LCD_D06__LCD_D6			0x1060
+#define MX28_PAD_LCD_D07__LCD_D7			0x1070
+#define MX28_PAD_LCD_D08__LCD_D8			0x1080
+#define MX28_PAD_LCD_D09__LCD_D9			0x1090
+#define MX28_PAD_LCD_D10__LCD_D10			0x10a0
+#define MX28_PAD_LCD_D11__LCD_D11			0x10b0
+#define MX28_PAD_LCD_D12__LCD_D12			0x10c0
+#define MX28_PAD_LCD_D13__LCD_D13			0x10d0
+#define MX28_PAD_LCD_D14__LCD_D14			0x10e0
+#define MX28_PAD_LCD_D15__LCD_D15			0x10f0
+#define MX28_PAD_LCD_D16__LCD_D16			0x1100
+#define MX28_PAD_LCD_D17__LCD_D17			0x1110
+#define MX28_PAD_LCD_D18__LCD_D18			0x1120
+#define MX28_PAD_LCD_D19__LCD_D19			0x1130
+#define MX28_PAD_LCD_D20__LCD_D20			0x1140
+#define MX28_PAD_LCD_D21__LCD_D21			0x1150
+#define MX28_PAD_LCD_D22__LCD_D22			0x1160
+#define MX28_PAD_LCD_D23__LCD_D23			0x1170
+#define MX28_PAD_LCD_RD_E__LCD_RD_E			0x1180
+#define MX28_PAD_LCD_WR_RWN__LCD_WR_RWN			0x1190
+#define MX28_PAD_LCD_RS__LCD_RS				0x11a0
+#define MX28_PAD_LCD_CS__LCD_CS				0x11b0
+#define MX28_PAD_LCD_VSYNC__LCD_VSYNC			0x11c0
+#define MX28_PAD_LCD_HSYNC__LCD_HSYNC			0x11d0
+#define MX28_PAD_LCD_DOTCLK__LCD_DOTCLK			0x11e0
+#define MX28_PAD_LCD_ENABLE__LCD_ENABLE			0x11f0
+#define MX28_PAD_SSP0_DATA0__SSP0_D0			0x2000
+#define MX28_PAD_SSP0_DATA1__SSP0_D1			0x2010
+#define MX28_PAD_SSP0_DATA2__SSP0_D2			0x2020
+#define MX28_PAD_SSP0_DATA3__SSP0_D3			0x2030
+#define MX28_PAD_SSP0_DATA4__SSP0_D4			0x2040
+#define MX28_PAD_SSP0_DATA5__SSP0_D5			0x2050
+#define MX28_PAD_SSP0_DATA6__SSP0_D6			0x2060
+#define MX28_PAD_SSP0_DATA7__SSP0_D7			0x2070
+#define MX28_PAD_SSP0_CMD__SSP0_CMD			0x2080
+#define MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT		0x2090
+#define MX28_PAD_SSP0_SCK__SSP0_SCK			0x20a0
+#define MX28_PAD_SSP1_SCK__SSP1_SCK			0x20c0
+#define MX28_PAD_SSP1_CMD__SSP1_CMD			0x20d0
+#define MX28_PAD_SSP1_DATA0__SSP1_D0			0x20e0
+#define MX28_PAD_SSP1_DATA3__SSP1_D3			0x20f0
+#define MX28_PAD_SSP2_SCK__SSP2_SCK			0x2100
+#define MX28_PAD_SSP2_MOSI__SSP2_CMD			0x2110
+#define MX28_PAD_SSP2_MISO__SSP2_D0			0x2120
+#define MX28_PAD_SSP2_SS0__SSP2_D3			0x2130
+#define MX28_PAD_SSP2_SS1__SSP2_D4			0x2140
+#define MX28_PAD_SSP2_SS2__SSP2_D5			0x2150
+#define MX28_PAD_SSP3_SCK__SSP3_SCK			0x2180
+#define MX28_PAD_SSP3_MOSI__SSP3_CMD			0x2190
+#define MX28_PAD_SSP3_MISO__SSP3_D0			0x21a0
+#define MX28_PAD_SSP3_SS0__SSP3_D3			0x21b0
+#define MX28_PAD_AUART0_RX__AUART0_RX			0x3000
+#define MX28_PAD_AUART0_TX__AUART0_TX			0x3010
+#define MX28_PAD_AUART0_CTS__AUART0_CTS			0x3020
+#define MX28_PAD_AUART0_RTS__AUART0_RTS			0x3030
+#define MX28_PAD_AUART1_RX__AUART1_RX			0x3040
+#define MX28_PAD_AUART1_TX__AUART1_TX			0x3050
+#define MX28_PAD_AUART1_CTS__AUART1_CTS			0x3060
+#define MX28_PAD_AUART1_RTS__AUART1_RTS			0x3070
+#define MX28_PAD_AUART2_RX__AUART2_RX			0x3080
+#define MX28_PAD_AUART2_TX__AUART2_TX			0x3090
+#define MX28_PAD_AUART2_CTS__AUART2_CTS			0x30a0
+#define MX28_PAD_AUART2_RTS__AUART2_RTS			0x30b0
+#define MX28_PAD_AUART3_RX__AUART3_RX			0x30c0
+#define MX28_PAD_AUART3_TX__AUART3_TX			0x30d0
+#define MX28_PAD_AUART3_CTS__AUART3_CTS			0x30e0
+#define MX28_PAD_AUART3_RTS__AUART3_RTS			0x30f0
+#define MX28_PAD_PWM0__PWM_0				0x3100
+#define MX28_PAD_PWM1__PWM_1				0x3110
+#define MX28_PAD_PWM2__PWM_2				0x3120
+#define MX28_PAD_SAIF0_MCLK__SAIF0_MCLK			0x3140
+#define MX28_PAD_SAIF0_LRCLK__SAIF0_LRCLK		0x3150
+#define MX28_PAD_SAIF0_BITCLK__SAIF0_BITCLK		0x3160
+#define MX28_PAD_SAIF0_SDATA0__SAIF0_SDATA0		0x3170
+#define MX28_PAD_I2C0_SCL__I2C0_SCL			0x3180
+#define MX28_PAD_I2C0_SDA__I2C0_SDA			0x3190
+#define MX28_PAD_SAIF1_SDATA0__SAIF1_SDATA0		0x31a0
+#define MX28_PAD_SPDIF__SPDIF_TX			0x31b0
+#define MX28_PAD_PWM3__PWM_3				0x31c0
+#define MX28_PAD_PWM4__PWM_4				0x31d0
+#define MX28_PAD_LCD_RESET__LCD_RESET			0x31e0
+#define MX28_PAD_ENET0_MDC__ENET0_MDC			0x4000
+#define MX28_PAD_ENET0_MDIO__ENET0_MDIO			0x4010
+#define MX28_PAD_ENET0_RX_EN__ENET0_RX_EN		0x4020
+#define MX28_PAD_ENET0_RXD0__ENET0_RXD0			0x4030
+#define MX28_PAD_ENET0_RXD1__ENET0_RXD1			0x4040
+#define MX28_PAD_ENET0_TX_CLK__ENET0_TX_CLK		0x4050
+#define MX28_PAD_ENET0_TX_EN__ENET0_TX_EN		0x4060
+#define MX28_PAD_ENET0_TXD0__ENET0_TXD0			0x4070
+#define MX28_PAD_ENET0_TXD1__ENET0_TXD1			0x4080
+#define MX28_PAD_ENET0_RXD2__ENET0_RXD2			0x4090
+#define MX28_PAD_ENET0_RXD3__ENET0_RXD3			0x40a0
+#define MX28_PAD_ENET0_TXD2__ENET0_TXD2			0x40b0
+#define MX28_PAD_ENET0_TXD3__ENET0_TXD3			0x40c0
+#define MX28_PAD_ENET0_RX_CLK__ENET0_RX_CLK		0x40d0
+#define MX28_PAD_ENET0_COL__ENET0_COL			0x40e0
+#define MX28_PAD_ENET0_CRS__ENET0_CRS			0x40f0
+#define MX28_PAD_ENET_CLK__CLKCTRL_ENET			0x4100
+#define MX28_PAD_JTAG_RTCK__JTAG_RTCK			0x4140
+#define MX28_PAD_EMI_D00__EMI_DATA0			0x5000
+#define MX28_PAD_EMI_D01__EMI_DATA1			0x5010
+#define MX28_PAD_EMI_D02__EMI_DATA2			0x5020
+#define MX28_PAD_EMI_D03__EMI_DATA3			0x5030
+#define MX28_PAD_EMI_D04__EMI_DATA4			0x5040
+#define MX28_PAD_EMI_D05__EMI_DATA5			0x5050
+#define MX28_PAD_EMI_D06__EMI_DATA6			0x5060
+#define MX28_PAD_EMI_D07__EMI_DATA7			0x5070
+#define MX28_PAD_EMI_D08__EMI_DATA8			0x5080
+#define MX28_PAD_EMI_D09__EMI_DATA9			0x5090
+#define MX28_PAD_EMI_D10__EMI_DATA10			0x50a0
+#define MX28_PAD_EMI_D11__EMI_DATA11			0x50b0
+#define MX28_PAD_EMI_D12__EMI_DATA12			0x50c0
+#define MX28_PAD_EMI_D13__EMI_DATA13			0x50d0
+#define MX28_PAD_EMI_D14__EMI_DATA14			0x50e0
+#define MX28_PAD_EMI_D15__EMI_DATA15			0x50f0
+#define MX28_PAD_EMI_ODT0__EMI_ODT0			0x5100
+#define MX28_PAD_EMI_DQM0__EMI_DQM0			0x5110
+#define MX28_PAD_EMI_ODT1__EMI_ODT1			0x5120
+#define MX28_PAD_EMI_DQM1__EMI_DQM1			0x5130
+#define MX28_PAD_EMI_DDR_OPEN_FB__EMI_DDR_OPEN_FEEDBACK	0x5140
+#define MX28_PAD_EMI_CLK__EMI_CLK			0x5150
+#define MX28_PAD_EMI_DQS0__EMI_DQS0			0x5160
+#define MX28_PAD_EMI_DQS1__EMI_DQS1			0x5170
+#define MX28_PAD_EMI_DDR_OPEN__EMI_DDR_OPEN		0x51a0
+#define MX28_PAD_EMI_A00__EMI_ADDR0			0x6000
+#define MX28_PAD_EMI_A01__EMI_ADDR1			0x6010
+#define MX28_PAD_EMI_A02__EMI_ADDR2			0x6020
+#define MX28_PAD_EMI_A03__EMI_ADDR3			0x6030
+#define MX28_PAD_EMI_A04__EMI_ADDR4			0x6040
+#define MX28_PAD_EMI_A05__EMI_ADDR5			0x6050
+#define MX28_PAD_EMI_A06__EMI_ADDR6			0x6060
+#define MX28_PAD_EMI_A07__EMI_ADDR7			0x6070
+#define MX28_PAD_EMI_A08__EMI_ADDR8			0x6080
+#define MX28_PAD_EMI_A09__EMI_ADDR9			0x6090
+#define MX28_PAD_EMI_A10__EMI_ADDR10			0x60a0
+#define MX28_PAD_EMI_A11__EMI_ADDR11			0x60b0
+#define MX28_PAD_EMI_A12__EMI_ADDR12			0x60c0
+#define MX28_PAD_EMI_A13__EMI_ADDR13			0x60d0
+#define MX28_PAD_EMI_A14__EMI_ADDR14			0x60e0
+#define MX28_PAD_EMI_BA0__EMI_BA0			0x6100
+#define MX28_PAD_EMI_BA1__EMI_BA1			0x6110
+#define MX28_PAD_EMI_BA2__EMI_BA2			0x6120
+#define MX28_PAD_EMI_CASN__EMI_CASN			0x6130
+#define MX28_PAD_EMI_RASN__EMI_RASN			0x6140
+#define MX28_PAD_EMI_WEN__EMI_WEN			0x6150
+#define MX28_PAD_EMI_CE0N__EMI_CE0N			0x6160
+#define MX28_PAD_EMI_CE1N__EMI_CE1N			0x6170
+#define MX28_PAD_EMI_CKE__EMI_CKE			0x6180
+#define MX28_PAD_GPMI_D00__SSP1_D0			0x0001
+#define MX28_PAD_GPMI_D01__SSP1_D1			0x0011
+#define MX28_PAD_GPMI_D02__SSP1_D2			0x0021
+#define MX28_PAD_GPMI_D03__SSP1_D3			0x0031
+#define MX28_PAD_GPMI_D04__SSP1_D4			0x0041
+#define MX28_PAD_GPMI_D05__SSP1_D5			0x0051
+#define MX28_PAD_GPMI_D06__SSP1_D6			0x0061
+#define MX28_PAD_GPMI_D07__SSP1_D7			0x0071
+#define MX28_PAD_GPMI_CE0N__SSP3_D0			0x0101
+#define MX28_PAD_GPMI_CE1N__SSP3_D3			0x0111
+#define MX28_PAD_GPMI_CE2N__CAN1_TX			0x0121
+#define MX28_PAD_GPMI_CE3N__CAN1_RX			0x0131
+#define MX28_PAD_GPMI_RDY0__SSP1_CARD_DETECT		0x0141
+#define MX28_PAD_GPMI_RDY1__SSP1_CMD			0x0151
+#define MX28_PAD_GPMI_RDY2__CAN0_TX			0x0161
+#define MX28_PAD_GPMI_RDY3__CAN0_RX			0x0171
+#define MX28_PAD_GPMI_RDN__SSP3_SCK			0x0181
+#define MX28_PAD_GPMI_WRN__SSP1_SCK			0x0191
+#define MX28_PAD_GPMI_ALE__SSP3_D1			0x01a1
+#define MX28_PAD_GPMI_CLE__SSP3_D2			0x01b1
+#define MX28_PAD_GPMI_RESETN__SSP3_CMD			0x01c1
+#define MX28_PAD_LCD_D03__ETM_DA8			0x1031
+#define MX28_PAD_LCD_D04__ETM_DA9			0x1041
+#define MX28_PAD_LCD_D08__ETM_DA3			0x1081
+#define MX28_PAD_LCD_D09__ETM_DA4			0x1091
+#define MX28_PAD_LCD_D20__ENET1_1588_EVENT2_OUT		0x1141
+#define MX28_PAD_LCD_D21__ENET1_1588_EVENT2_IN		0x1151
+#define MX28_PAD_LCD_D22__ENET1_1588_EVENT3_OUT		0x1161
+#define MX28_PAD_LCD_D23__ENET1_1588_EVENT3_IN		0x1171
+#define MX28_PAD_LCD_RD_E__LCD_VSYNC			0x1181
+#define MX28_PAD_LCD_WR_RWN__LCD_HSYNC			0x1191
+#define MX28_PAD_LCD_RS__LCD_DOTCLK			0x11a1
+#define MX28_PAD_LCD_CS__LCD_ENABLE			0x11b1
+#define MX28_PAD_LCD_VSYNC__SAIF1_SDATA0		0x11c1
+#define MX28_PAD_LCD_HSYNC__SAIF1_SDATA1		0x11d1
+#define MX28_PAD_LCD_DOTCLK__SAIF1_MCLK			0x11e1
+#define MX28_PAD_SSP0_DATA4__SSP2_D0			0x2041
+#define MX28_PAD_SSP0_DATA5__SSP2_D3			0x2051
+#define MX28_PAD_SSP0_DATA6__SSP2_CMD			0x2061
+#define MX28_PAD_SSP0_DATA7__SSP2_SCK			0x2071
+#define MX28_PAD_SSP1_SCK__SSP2_D1			0x20c1
+#define MX28_PAD_SSP1_CMD__SSP2_D2			0x20d1
+#define MX28_PAD_SSP1_DATA0__SSP2_D6			0x20e1
+#define MX28_PAD_SSP1_DATA3__SSP2_D7			0x20f1
+#define MX28_PAD_SSP2_SCK__AUART2_RX			0x2101
+#define MX28_PAD_SSP2_MOSI__AUART2_TX			0x2111
+#define MX28_PAD_SSP2_MISO__AUART3_RX			0x2121
+#define MX28_PAD_SSP2_SS0__AUART3_TX			0x2131
+#define MX28_PAD_SSP2_SS1__SSP2_D1			0x2141
+#define MX28_PAD_SSP2_SS2__SSP2_D2			0x2151
+#define MX28_PAD_SSP3_SCK__AUART4_TX			0x2181
+#define MX28_PAD_SSP3_MOSI__AUART4_RX			0x2191
+#define MX28_PAD_SSP3_MISO__AUART4_RTS			0x21a1
+#define MX28_PAD_SSP3_SS0__AUART4_CTS			0x21b1
+#define MX28_PAD_AUART0_RX__I2C0_SCL			0x3001
+#define MX28_PAD_AUART0_TX__I2C0_SDA			0x3011
+#define MX28_PAD_AUART0_CTS__AUART4_RX			0x3021
+#define MX28_PAD_AUART0_RTS__AUART4_TX			0x3031
+#define MX28_PAD_AUART1_RX__SSP2_CARD_DETECT		0x3041
+#define MX28_PAD_AUART1_TX__SSP3_CARD_DETECT		0x3051
+#define MX28_PAD_AUART1_CTS__USB0_OVERCURRENT		0x3061
+#define MX28_PAD_AUART1_RTS__USB0_ID			0x3071
+#define MX28_PAD_AUART2_RX__SSP3_D1			0x3081
+#define MX28_PAD_AUART2_TX__SSP3_D2			0x3091
+#define MX28_PAD_AUART2_CTS__I2C1_SCL			0x30a1
+#define MX28_PAD_AUART2_RTS__I2C1_SDA			0x30b1
+#define MX28_PAD_AUART3_RX__CAN0_TX			0x30c1
+#define MX28_PAD_AUART3_TX__CAN0_RX			0x30d1
+#define MX28_PAD_AUART3_CTS__CAN1_TX			0x30e1
+#define MX28_PAD_AUART3_RTS__CAN1_RX			0x30f1
+#define MX28_PAD_PWM0__I2C1_SCL				0x3101
+#define MX28_PAD_PWM1__I2C1_SDA				0x3111
+#define MX28_PAD_PWM2__USB0_ID				0x3121
+#define MX28_PAD_SAIF0_MCLK__PWM_3			0x3141
+#define MX28_PAD_SAIF0_LRCLK__PWM_4			0x3151
+#define MX28_PAD_SAIF0_BITCLK__PWM_5			0x3161
+#define MX28_PAD_SAIF0_SDATA0__PWM_6			0x3171
+#define MX28_PAD_I2C0_SCL__TIMROT_ROTARYA		0x3181
+#define MX28_PAD_I2C0_SDA__TIMROT_ROTARYB		0x3191
+#define MX28_PAD_SAIF1_SDATA0__PWM_7			0x31a1
+#define MX28_PAD_LCD_RESET__LCD_VSYNC			0x31e1
+#define MX28_PAD_ENET0_MDC__GPMI_CE4N			0x4001
+#define MX28_PAD_ENET0_MDIO__GPMI_CE5N			0x4011
+#define MX28_PAD_ENET0_RX_EN__GPMI_CE6N			0x4021
+#define MX28_PAD_ENET0_RXD0__GPMI_CE7N			0x4031
+#define MX28_PAD_ENET0_RXD1__GPMI_READY4		0x4041
+#define MX28_PAD_ENET0_TX_CLK__HSADC_TRIGGER		0x4051
+#define MX28_PAD_ENET0_TX_EN__GPMI_READY5		0x4061
+#define MX28_PAD_ENET0_TXD0__GPMI_READY6		0x4071
+#define MX28_PAD_ENET0_TXD1__GPMI_READY7		0x4081
+#define MX28_PAD_ENET0_RXD2__ENET1_RXD0			0x4091
+#define MX28_PAD_ENET0_RXD3__ENET1_RXD1			0x40a1
+#define MX28_PAD_ENET0_TXD2__ENET1_TXD0			0x40b1
+#define MX28_PAD_ENET0_TXD3__ENET1_TXD1			0x40c1
+#define MX28_PAD_ENET0_RX_CLK__ENET0_RX_ER		0x40d1
+#define MX28_PAD_ENET0_COL__ENET1_TX_EN			0x40e1
+#define MX28_PAD_ENET0_CRS__ENET1_RX_EN			0x40f1
+#define MX28_PAD_GPMI_CE2N__ENET0_RX_ER			0x0122
+#define MX28_PAD_GPMI_CE3N__SAIF1_MCLK			0x0132
+#define MX28_PAD_GPMI_RDY0__USB0_ID			0x0142
+#define MX28_PAD_GPMI_RDY2__ENET0_TX_ER			0x0162
+#define MX28_PAD_GPMI_RDY3__HSADC_TRIGGER		0x0172
+#define MX28_PAD_GPMI_ALE__SSP3_D4			0x01a2
+#define MX28_PAD_GPMI_CLE__SSP3_D5			0x01b2
+#define MX28_PAD_LCD_D00__ETM_DA0			0x1002
+#define MX28_PAD_LCD_D01__ETM_DA1			0x1012
+#define MX28_PAD_LCD_D02__ETM_DA2			0x1022
+#define MX28_PAD_LCD_D03__ETM_DA3			0x1032
+#define MX28_PAD_LCD_D04__ETM_DA4			0x1042
+#define MX28_PAD_LCD_D05__ETM_DA5			0x1052
+#define MX28_PAD_LCD_D06__ETM_DA6			0x1062
+#define MX28_PAD_LCD_D07__ETM_DA7			0x1072
+#define MX28_PAD_LCD_D08__ETM_DA8			0x1082
+#define MX28_PAD_LCD_D09__ETM_DA9			0x1092
+#define MX28_PAD_LCD_D10__ETM_DA10			0x10a2
+#define MX28_PAD_LCD_D11__ETM_DA11			0x10b2
+#define MX28_PAD_LCD_D12__ETM_DA12			0x10c2
+#define MX28_PAD_LCD_D13__ETM_DA13			0x10d2
+#define MX28_PAD_LCD_D14__ETM_DA14			0x10e2
+#define MX28_PAD_LCD_D15__ETM_DA15			0x10f2
+#define MX28_PAD_LCD_D16__ETM_DA7			0x1102
+#define MX28_PAD_LCD_D17__ETM_DA6			0x1112
+#define MX28_PAD_LCD_D18__ETM_DA5			0x1122
+#define MX28_PAD_LCD_D19__ETM_DA4			0x1132
+#define MX28_PAD_LCD_D20__ETM_DA3			0x1142
+#define MX28_PAD_LCD_D21__ETM_DA2			0x1152
+#define MX28_PAD_LCD_D22__ETM_DA1			0x1162
+#define MX28_PAD_LCD_D23__ETM_DA0			0x1172
+#define MX28_PAD_LCD_RD_E__ETM_TCTL			0x1182
+#define MX28_PAD_LCD_WR_RWN__ETM_TCLK			0x1192
+#define MX28_PAD_LCD_HSYNC__ETM_TCTL			0x11d2
+#define MX28_PAD_LCD_DOTCLK__ETM_TCLK			0x11e2
+#define MX28_PAD_SSP1_SCK__ENET0_1588_EVENT2_OUT	0x20c2
+#define MX28_PAD_SSP1_CMD__ENET0_1588_EVENT2_IN		0x20d2
+#define MX28_PAD_SSP1_DATA0__ENET0_1588_EVENT3_OUT	0x20e2
+#define MX28_PAD_SSP1_DATA3__ENET0_1588_EVENT3_IN	0x20f2
+#define MX28_PAD_SSP2_SCK__SAIF0_SDATA1			0x2102
+#define MX28_PAD_SSP2_MOSI__SAIF0_SDATA2		0x2112
+#define MX28_PAD_SSP2_MISO__SAIF1_SDATA1		0x2122
+#define MX28_PAD_SSP2_SS0__SAIF1_SDATA2			0x2132
+#define MX28_PAD_SSP2_SS1__USB1_OVERCURRENT		0x2142
+#define MX28_PAD_SSP2_SS2__USB0_OVERCURRENT		0x2152
+#define MX28_PAD_SSP3_SCK__ENET1_1588_EVENT0_OUT	0x2182
+#define MX28_PAD_SSP3_MOSI__ENET1_1588_EVENT0_IN	0x2192
+#define MX28_PAD_SSP3_MISO__ENET1_1588_EVENT1_OUT	0x21a2
+#define MX28_PAD_SSP3_SS0__ENET1_1588_EVENT1_IN		0x21b2
+#define MX28_PAD_AUART0_RX__DUART_CTS			0x3002
+#define MX28_PAD_AUART0_TX__DUART_RTS			0x3012
+#define MX28_PAD_AUART0_CTS__DUART_RX			0x3022
+#define MX28_PAD_AUART0_RTS__DUART_TX			0x3032
+#define MX28_PAD_AUART1_RX__PWM_0			0x3042
+#define MX28_PAD_AUART1_TX__PWM_1			0x3052
+#define MX28_PAD_AUART1_CTS__TIMROT_ROTARYA		0x3062
+#define MX28_PAD_AUART1_RTS__TIMROT_ROTARYB		0x3072
+#define MX28_PAD_AUART2_RX__SSP3_D4			0x3082
+#define MX28_PAD_AUART2_TX__SSP3_D5			0x3092
+#define MX28_PAD_AUART2_CTS__SAIF1_BITCLK		0x30a2
+#define MX28_PAD_AUART2_RTS__SAIF1_LRCLK		0x30b2
+#define MX28_PAD_AUART3_RX__ENET0_1588_EVENT0_OUT	0x30c2
+#define MX28_PAD_AUART3_TX__ENET0_1588_EVENT0_IN	0x30d2
+#define MX28_PAD_AUART3_CTS__ENET0_1588_EVENT1_OUT	0x30e2
+#define MX28_PAD_AUART3_RTS__ENET0_1588_EVENT1_IN	0x30f2
+#define MX28_PAD_PWM0__DUART_RX				0x3102
+#define MX28_PAD_PWM1__DUART_TX				0x3112
+#define MX28_PAD_PWM2__USB1_OVERCURRENT			0x3122
+#define MX28_PAD_SAIF0_MCLK__AUART4_CTS			0x3142
+#define MX28_PAD_SAIF0_LRCLK__AUART4_RTS		0x3152
+#define MX28_PAD_SAIF0_BITCLK__AUART4_RX		0x3162
+#define MX28_PAD_SAIF0_SDATA0__AUART4_TX		0x3172
+#define MX28_PAD_I2C0_SCL__DUART_RX			0x3182
+#define MX28_PAD_I2C0_SDA__DUART_TX			0x3192
+#define MX28_PAD_SAIF1_SDATA0__SAIF0_SDATA1		0x31a2
+#define MX28_PAD_SPDIF__ENET1_RX_ER			0x31b2
+#define MX28_PAD_ENET0_MDC__SAIF0_SDATA1		0x4002
+#define MX28_PAD_ENET0_MDIO__SAIF0_SDATA2		0x4012
+#define MX28_PAD_ENET0_RX_EN__SAIF1_SDATA1		0x4022
+#define MX28_PAD_ENET0_RXD0__SAIF1_SDATA2		0x4032
+#define MX28_PAD_ENET0_TX_CLK__ENET0_1588_EVENT2_OUT	0x4052
+#define MX28_PAD_ENET0_RXD2__ENET0_1588_EVENT0_OUT	0x4092
+#define MX28_PAD_ENET0_RXD3__ENET0_1588_EVENT0_IN	0x40a2
+#define MX28_PAD_ENET0_TXD2__ENET0_1588_EVENT1_OUT	0x40b2
+#define MX28_PAD_ENET0_TXD3__ENET0_1588_EVENT1_IN	0x40c2
+#define MX28_PAD_ENET0_RX_CLK__ENET0_1588_EVENT2_IN	0x40d2
+#define MX28_PAD_ENET0_COL__ENET0_1588_EVENT3_OUT	0x40e2
+#define MX28_PAD_ENET0_CRS__ENET0_1588_EVENT3_IN	0x40f2
+#define MX28_PAD_GPMI_D00__GPIO_0_0			0x0003
+#define MX28_PAD_GPMI_D01__GPIO_0_1			0x0013
+#define MX28_PAD_GPMI_D02__GPIO_0_2			0x0023
+#define MX28_PAD_GPMI_D03__GPIO_0_3			0x0033
+#define MX28_PAD_GPMI_D04__GPIO_0_4			0x0043
+#define MX28_PAD_GPMI_D05__GPIO_0_5			0x0053
+#define MX28_PAD_GPMI_D06__GPIO_0_6			0x0063
+#define MX28_PAD_GPMI_D07__GPIO_0_7			0x0073
+#define MX28_PAD_GPMI_CE0N__GPIO_0_16			0x0103
+#define MX28_PAD_GPMI_CE1N__GPIO_0_17			0x0113
+#define MX28_PAD_GPMI_CE2N__GPIO_0_18			0x0123
+#define MX28_PAD_GPMI_CE3N__GPIO_0_19			0x0133
+#define MX28_PAD_GPMI_RDY0__GPIO_0_20			0x0143
+#define MX28_PAD_GPMI_RDY1__GPIO_0_21			0x0153
+#define MX28_PAD_GPMI_RDY2__GPIO_0_22			0x0163
+#define MX28_PAD_GPMI_RDY3__GPIO_0_23			0x0173
+#define MX28_PAD_GPMI_RDN__GPIO_0_24			0x0183
+#define MX28_PAD_GPMI_WRN__GPIO_0_25			0x0193
+#define MX28_PAD_GPMI_ALE__GPIO_0_26			0x01a3
+#define MX28_PAD_GPMI_CLE__GPIO_0_27			0x01b3
+#define MX28_PAD_GPMI_RESETN__GPIO_0_28			0x01c3
+#define MX28_PAD_LCD_D00__GPIO_1_0			0x1003
+#define MX28_PAD_LCD_D01__GPIO_1_1			0x1013
+#define MX28_PAD_LCD_D02__GPIO_1_2			0x1023
+#define MX28_PAD_LCD_D03__GPIO_1_3			0x1033
+#define MX28_PAD_LCD_D04__GPIO_1_4			0x1043
+#define MX28_PAD_LCD_D05__GPIO_1_5			0x1053
+#define MX28_PAD_LCD_D06__GPIO_1_6			0x1063
+#define MX28_PAD_LCD_D07__GPIO_1_7			0x1073
+#define MX28_PAD_LCD_D08__GPIO_1_8			0x1083
+#define MX28_PAD_LCD_D09__GPIO_1_9			0x1093
+#define MX28_PAD_LCD_D10__GPIO_1_10			0x10a3
+#define MX28_PAD_LCD_D11__GPIO_1_11			0x10b3
+#define MX28_PAD_LCD_D12__GPIO_1_12			0x10c3
+#define MX28_PAD_LCD_D13__GPIO_1_13			0x10d3
+#define MX28_PAD_LCD_D14__GPIO_1_14			0x10e3
+#define MX28_PAD_LCD_D15__GPIO_1_15			0x10f3
+#define MX28_PAD_LCD_D16__GPIO_1_16			0x1103
+#define MX28_PAD_LCD_D17__GPIO_1_17			0x1113
+#define MX28_PAD_LCD_D18__GPIO_1_18			0x1123
+#define MX28_PAD_LCD_D19__GPIO_1_19			0x1133
+#define MX28_PAD_LCD_D20__GPIO_1_20			0x1143
+#define MX28_PAD_LCD_D21__GPIO_1_21			0x1153
+#define MX28_PAD_LCD_D22__GPIO_1_22			0x1163
+#define MX28_PAD_LCD_D23__GPIO_1_23			0x1173
+#define MX28_PAD_LCD_RD_E__GPIO_1_24			0x1183
+#define MX28_PAD_LCD_WR_RWN__GPIO_1_25			0x1193
+#define MX28_PAD_LCD_RS__GPIO_1_26			0x11a3
+#define MX28_PAD_LCD_CS__GPIO_1_27			0x11b3
+#define MX28_PAD_LCD_VSYNC__GPIO_1_28			0x11c3
+#define MX28_PAD_LCD_HSYNC__GPIO_1_29			0x11d3
+#define MX28_PAD_LCD_DOTCLK__GPIO_1_30			0x11e3
+#define MX28_PAD_LCD_ENABLE__GPIO_1_31			0x11f3
+#define MX28_PAD_SSP0_DATA0__GPIO_2_0			0x2003
+#define MX28_PAD_SSP0_DATA1__GPIO_2_1			0x2013
+#define MX28_PAD_SSP0_DATA2__GPIO_2_2			0x2023
+#define MX28_PAD_SSP0_DATA3__GPIO_2_3			0x2033
+#define MX28_PAD_SSP0_DATA4__GPIO_2_4			0x2043
+#define MX28_PAD_SSP0_DATA5__GPIO_2_5			0x2053
+#define MX28_PAD_SSP0_DATA6__GPIO_2_6			0x2063
+#define MX28_PAD_SSP0_DATA7__GPIO_2_7			0x2073
+#define MX28_PAD_SSP0_CMD__GPIO_2_8			0x2083
+#define MX28_PAD_SSP0_DETECT__GPIO_2_9			0x2093
+#define MX28_PAD_SSP0_SCK__GPIO_2_10			0x20a3
+#define MX28_PAD_SSP1_SCK__GPIO_2_12			0x20c3
+#define MX28_PAD_SSP1_CMD__GPIO_2_13			0x20d3
+#define MX28_PAD_SSP1_DATA0__GPIO_2_14			0x20e3
+#define MX28_PAD_SSP1_DATA3__GPIO_2_15			0x20f3
+#define MX28_PAD_SSP2_SCK__GPIO_2_16			0x2103
+#define MX28_PAD_SSP2_MOSI__GPIO_2_17			0x2113
+#define MX28_PAD_SSP2_MISO__GPIO_2_18			0x2123
+#define MX28_PAD_SSP2_SS0__GPIO_2_19			0x2133
+#define MX28_PAD_SSP2_SS1__GPIO_2_20			0x2143
+#define MX28_PAD_SSP2_SS2__GPIO_2_21			0x2153
+#define MX28_PAD_SSP3_SCK__GPIO_2_24			0x2183
+#define MX28_PAD_SSP3_MOSI__GPIO_2_25			0x2193
+#define MX28_PAD_SSP3_MISO__GPIO_2_26			0x21a3
+#define MX28_PAD_SSP3_SS0__GPIO_2_27			0x21b3
+#define MX28_PAD_AUART0_RX__GPIO_3_0			0x3003
+#define MX28_PAD_AUART0_TX__GPIO_3_1			0x3013
+#define MX28_PAD_AUART0_CTS__GPIO_3_2			0x3023
+#define MX28_PAD_AUART0_RTS__GPIO_3_3			0x3033
+#define MX28_PAD_AUART1_RX__GPIO_3_4			0x3043
+#define MX28_PAD_AUART1_TX__GPIO_3_5			0x3053
+#define MX28_PAD_AUART1_CTS__GPIO_3_6			0x3063
+#define MX28_PAD_AUART1_RTS__GPIO_3_7			0x3073
+#define MX28_PAD_AUART2_RX__GPIO_3_8			0x3083
+#define MX28_PAD_AUART2_TX__GPIO_3_9			0x3093
+#define MX28_PAD_AUART2_CTS__GPIO_3_10			0x30a3
+#define MX28_PAD_AUART2_RTS__GPIO_3_11			0x30b3
+#define MX28_PAD_AUART3_RX__GPIO_3_12			0x30c3
+#define MX28_PAD_AUART3_TX__GPIO_3_13			0x30d3
+#define MX28_PAD_AUART3_CTS__GPIO_3_14			0x30e3
+#define MX28_PAD_AUART3_RTS__GPIO_3_15			0x30f3
+#define MX28_PAD_PWM0__GPIO_3_16			0x3103
+#define MX28_PAD_PWM1__GPIO_3_17			0x3113
+#define MX28_PAD_PWM2__GPIO_3_18			0x3123
+#define MX28_PAD_SAIF0_MCLK__GPIO_3_20			0x3143
+#define MX28_PAD_SAIF0_LRCLK__GPIO_3_21			0x3153
+#define MX28_PAD_SAIF0_BITCLK__GPIO_3_22		0x3163
+#define MX28_PAD_SAIF0_SDATA0__GPIO_3_23		0x3173
+#define MX28_PAD_I2C0_SCL__GPIO_3_24			0x3183
+#define MX28_PAD_I2C0_SDA__GPIO_3_25			0x3193
+#define MX28_PAD_SAIF1_SDATA0__GPIO_3_26		0x31a3
+#define MX28_PAD_SPDIF__GPIO_3_27			0x31b3
+#define MX28_PAD_PWM3__GPIO_3_28			0x31c3
+#define MX28_PAD_PWM4__GPIO_3_29			0x31d3
+#define MX28_PAD_LCD_RESET__GPIO_3_30			0x31e3
+#define MX28_PAD_ENET0_MDC__GPIO_4_0			0x4003
+#define MX28_PAD_ENET0_MDIO__GPIO_4_1			0x4013
+#define MX28_PAD_ENET0_RX_EN__GPIO_4_2			0x4023
+#define MX28_PAD_ENET0_RXD0__GPIO_4_3			0x4033
+#define MX28_PAD_ENET0_RXD1__GPIO_4_4			0x4043
+#define MX28_PAD_ENET0_TX_CLK__GPIO_4_5			0x4053
+#define MX28_PAD_ENET0_TX_EN__GPIO_4_6			0x4063
+#define MX28_PAD_ENET0_TXD0__GPIO_4_7			0x4073
+#define MX28_PAD_ENET0_TXD1__GPIO_4_8			0x4083
+#define MX28_PAD_ENET0_RXD2__GPIO_4_9			0x4093
+#define MX28_PAD_ENET0_RXD3__GPIO_4_10			0x40a3
+#define MX28_PAD_ENET0_TXD2__GPIO_4_11			0x40b3
+#define MX28_PAD_ENET0_TXD3__GPIO_4_12			0x40c3
+#define MX28_PAD_ENET0_RX_CLK__GPIO_4_13		0x40d3
+#define MX28_PAD_ENET0_COL__GPIO_4_14			0x40e3
+#define MX28_PAD_ENET0_CRS__GPIO_4_15			0x40f3
+#define MX28_PAD_ENET_CLK__GPIO_4_16			0x4103
+#define MX28_PAD_JTAG_RTCK__GPIO_4_20			0x4143
+
+#endif /* __DT_BINDINGS_MX28_PINCTRL_H__ */
diff --git a/arch/arm/boot/dts/mxs-pinfunc.h b/arch/arm/boot/dts/mxs-pinfunc.h
new file mode 100644
index 000000000000..c6da987b20cb
--- /dev/null
+++ b/arch/arm/boot/dts/mxs-pinfunc.h
@@ -0,0 +1,31 @@
+/*
+ * Header providing constants for i.MX28 pinctrl bindings.
+ *
+ * Copyright (C) 2013 Lothar Waßmann <LW@KARO-electronics.de>
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#ifndef __DT_BINDINGS_MXS_PINCTRL_H__
+#define __DT_BINDINGS_MXS_PINCTRL_H__
+
+/* fsl,drive-strength property */
+#define MXS_DRIVE_4mA		0
+#define MXS_DRIVE_8mA		1
+#define MXS_DRIVE_12mA		2
+#define MXS_DRIVE_16mA		3
+
+/* fsl,voltage property */
+#define MXS_VOLTAGE_LOW		0
+#define MXS_VOLTAGE_HIGH	1
+
+/* fsl,pull-up property */
+#define MXS_PULL_DISABLE	0
+#define MXS_PULL_ENABLE		1
+
+#endif /* __DT_BINDINGS_MXS_PINCTRL_H__ */
-- 
cgit 


From bc3875f1a61e30dc56b00ffbd55daabce271e2ee Mon Sep 17 00:00:00 2001
From: Lothar Waßmann <LW@KARO-electronics.de>
Date: Thu, 19 Sep 2013 08:59:48 +0200
Subject: ARM: dts: mxs: modify mx23/mx28 dts files to use pinctrl headers
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Convert mx23/mx28 dts filed to use the pinctrl header files.

NOTE: During automatic conversion of these files to use the pinconfig
definitions an inconsistency has been found in:
arch/arm/boot/dts/imx28-apx4devkit.dts

According to the comment the function for pad SSP2_SS0 should have
been MX28_PAD_SSP2_SS0__GPIO_2_19, while the given value 0x2131
represents: MX28_PAD_SSP2_SS0__AUART3_TX

I used the later (though probably wrong) definition because that's
what is actually being used in the DTB.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx23-evk.dts           |  10 +-
 arch/arm/boot/dts/imx23-olinuxino.dts     |   6 +-
 arch/arm/boot/dts/imx23-stmp378x_devb.dts |   6 +-
 arch/arm/boot/dts/imx23.dtsi              | 163 ++++++++-------
 arch/arm/boot/dts/imx28-apf28.dts         |   2 +-
 arch/arm/boot/dts/imx28-apf28dev.dts      |  24 +--
 arch/arm/boot/dts/imx28-apx4devkit.dts    |  38 ++--
 arch/arm/boot/dts/imx28-cfa10036.dts      |   8 +-
 arch/arm/boot/dts/imx28-cfa10037.dts      |   6 +-
 arch/arm/boot/dts/imx28-cfa10049.dts      |  84 ++++----
 arch/arm/boot/dts/imx28-cfa10055.dts      |  56 ++---
 arch/arm/boot/dts/imx28-cfa10056.dts      |  20 +-
 arch/arm/boot/dts/imx28-cfa10057.dts      |  48 ++---
 arch/arm/boot/dts/imx28-cfa10058.dts      |  12 +-
 arch/arm/boot/dts/imx28-evk.dts           |  32 +--
 arch/arm/boot/dts/imx28-m28evk.dts        |  16 +-
 arch/arm/boot/dts/imx28-sps1.dts          |   8 +-
 arch/arm/boot/dts/imx28-tx28.dts          |   2 +-
 arch/arm/boot/dts/imx28.dtsi              | 337 +++++++++++++++---------------
 19 files changed, 440 insertions(+), 438 deletions(-)

diff --git a/arch/arm/boot/dts/imx23-evk.dts b/arch/arm/boot/dts/imx23-evk.dts
index 185c7c01102a..fdd8b27adb17 100644
--- a/arch/arm/boot/dts/imx23-evk.dts
+++ b/arch/arm/boot/dts/imx23-evk.dts
@@ -10,7 +10,7 @@
  */
 
 /dts-v1/;
-/include/ "imx23.dtsi"
+#include "imx23.dtsi"
 
 / {
 	model = "Freescale i.MX23 Evaluation Kit";
@@ -45,10 +45,10 @@
 				hog_pins_a: hog@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x1123 /* MX23_PAD_LCD_RESET__GPIO_1_18 */
-						0x11d3 /* MX23_PAD_PWM3__GPIO_1_29 */
-						0x11e3 /* MX23_PAD_PWM4__GPIO_1_30 */
-						0x2010 /* MX23_PAD_SSP1_DETECT__SSP1_DETECT */
+						MX23_PAD_LCD_RESET__GPIO_1_18
+						MX23_PAD_PWM3__GPIO_1_29
+						MX23_PAD_PWM4__GPIO_1_30
+						MX23_PAD_SSP1_DETECT__SSP1_DETECT
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
diff --git a/arch/arm/boot/dts/imx23-olinuxino.dts b/arch/arm/boot/dts/imx23-olinuxino.dts
index fc766ae12e24..f575434d22ae 100644
--- a/arch/arm/boot/dts/imx23-olinuxino.dts
+++ b/arch/arm/boot/dts/imx23-olinuxino.dts
@@ -12,7 +12,7 @@
  */
 
 /dts-v1/;
-/include/ "imx23.dtsi"
+#include "imx23.dtsi"
 
 / {
 	model = "i.MX23 Olinuxino Low Cost Board";
@@ -40,7 +40,7 @@
 				hog_pins_a: hog@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x0113 /* MX23_PAD_GPMI_ALE__GPIO_0_17 */
+						MX23_PAD_GPMI_ALE__GPIO_0_17
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -50,7 +50,7 @@
 				led_pin_gpio2_1: led_gpio2_1@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x2013 /* MX23_PAD_SSP1_DETECT__GPIO_2_1 */
+						MX23_PAD_SSP1_DETECT__GPIO_2_1
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
diff --git a/arch/arm/boot/dts/imx23-stmp378x_devb.dts b/arch/arm/boot/dts/imx23-stmp378x_devb.dts
index 85c3864b6a56..2c8a9b0b9f43 100644
--- a/arch/arm/boot/dts/imx23-stmp378x_devb.dts
+++ b/arch/arm/boot/dts/imx23-stmp378x_devb.dts
@@ -10,7 +10,7 @@
  */
 
 /dts-v1/;
-/include/ "imx23.dtsi"
+#include "imx23.dtsi"
 
 / {
 	model = "Freescale STMP378x Development Board";
@@ -39,8 +39,8 @@
 				hog_pins_a: hog@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x11d3 /* MX23_PAD_PWM3__GPIO_1_29 */
-						0x11e3 /* MX23_PAD_PWM4__GPIO_1_30 */
+						MX23_PAD_PWM3__GPIO_1_29
+						MX23_PAD_PWM4__GPIO_1_30
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
diff --git a/arch/arm/boot/dts/imx23.dtsi b/arch/arm/boot/dts/imx23.dtsi
index 28b5ce289662..ff96e592ec3c 100644
--- a/arch/arm/boot/dts/imx23.dtsi
+++ b/arch/arm/boot/dts/imx23.dtsi
@@ -9,7 +9,8 @@
  * http://www.gnu.org/copyleft/gpl.html
  */
 
-/include/ "skeleton.dtsi"
+#include "skeleton.dtsi"
+#include "imx23-pinfunc.h"
 
 / {
 	interrupt-parent = <&icoll>;
@@ -137,8 +138,8 @@
 				duart_pins_a: duart@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x11a2 /* MX23_PAD_PWM0__DUART_RX */
-						0x11b2 /* MX23_PAD_PWM1__DUART_TX */
+						MX23_PAD_PWM0__DUART_RX
+						MX23_PAD_PWM1__DUART_TX
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -148,10 +149,10 @@
 				auart0_pins_a: auart0@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x01c0 /* MX23_PAD_AUART1_RX__AUART1_RX */
-						0x01d0 /* MX23_PAD_AUART1_TX__AUART1_TX */
-						0x01a0 /* MX23_PAD_AUART1_CTS__AUART1_CTS */
-						0x01b0 /* MX23_PAD_AUART1_RTS__AUART1_RTS */
+						MX23_PAD_AUART1_RX__AUART1_RX
+						MX23_PAD_AUART1_TX__AUART1_TX
+						MX23_PAD_AUART1_CTS__AUART1_CTS
+						MX23_PAD_AUART1_RTS__AUART1_RTS
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -161,8 +162,8 @@
 				auart0_2pins_a: auart0-2pins@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x01e2 /* MX23_PAD_I2C_SCL__AUART1_TX */
-						0x01f2 /* MX23_PAD_I2C_SDA__AUART1_RX */
+						MX23_PAD_I2C_SCL__AUART1_TX
+						MX23_PAD_I2C_SDA__AUART1_RX
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -172,23 +173,23 @@
 				gpmi_pins_a: gpmi-nand@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x0000 /* MX23_PAD_GPMI_D00__GPMI_D00 */
-						0x0010 /* MX23_PAD_GPMI_D01__GPMI_D01 */
-						0x0020 /* MX23_PAD_GPMI_D02__GPMI_D02 */
-						0x0030 /* MX23_PAD_GPMI_D03__GPMI_D03 */
-						0x0040 /* MX23_PAD_GPMI_D04__GPMI_D04 */
-						0x0050 /* MX23_PAD_GPMI_D05__GPMI_D05 */
-						0x0060 /* MX23_PAD_GPMI_D06__GPMI_D06 */
-						0x0070 /* MX23_PAD_GPMI_D07__GPMI_D07 */
-						0x0100 /* MX23_PAD_GPMI_CLE__GPMI_CLE */
-						0x0110 /* MX23_PAD_GPMI_ALE__GPMI_ALE */
-						0x0130 /* MX23_PAD_GPMI_RDY0__GPMI_RDY0 */
-						0x0140 /* MX23_PAD_GPMI_RDY1__GPMI_RDY1 */
-						0x0170 /* MX23_PAD_GPMI_WPN__GPMI_WPN */
-						0x0180 /* MX23_PAD_GPMI_WRN__GPMI_WRN */
-						0x0190 /* MX23_PAD_GPMI_RDN__GPMI_RDN */
-						0x21b0 /* MX23_PAD_GPMI_CE1N__GPMI_CE1N */
-						0x21c0 /* MX23_PAD_GPMI_CE0N__GPMI_CE0N	*/
+						MX23_PAD_GPMI_D00__GPMI_D00
+						MX23_PAD_GPMI_D01__GPMI_D01
+						MX23_PAD_GPMI_D02__GPMI_D02
+						MX23_PAD_GPMI_D03__GPMI_D03
+						MX23_PAD_GPMI_D04__GPMI_D04
+						MX23_PAD_GPMI_D05__GPMI_D05
+						MX23_PAD_GPMI_D06__GPMI_D06
+						MX23_PAD_GPMI_D07__GPMI_D07
+						MX23_PAD_GPMI_CLE__GPMI_CLE
+						MX23_PAD_GPMI_ALE__GPMI_ALE
+						MX23_PAD_GPMI_RDY0__GPMI_RDY0
+						MX23_PAD_GPMI_RDY1__GPMI_RDY1
+						MX23_PAD_GPMI_WPN__GPMI_WPN
+						MX23_PAD_GPMI_WRN__GPMI_WRN
+						MX23_PAD_GPMI_RDN__GPMI_RDN
+						MX23_PAD_GPMI_CE1N__GPMI_CE1N
+						MX23_PAD_GPMI_CE0N__GPMI_CE0N
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -197,9 +198,9 @@
 
 				gpmi_pins_fixup: gpmi-pins-fixup {
 					fsl,pinmux-ids = <
-						0x0170 /* MX23_PAD_GPMI_WPN__GPMI_WPN */
-						0x0180 /* MX23_PAD_GPMI_WRN__GPMI_WRN */
-						0x0190 /* MX23_PAD_GPMI_RDN__GPMI_RDN */
+						MX23_PAD_GPMI_WPN__GPMI_WPN
+						MX23_PAD_GPMI_WRN__GPMI_WRN
+						MX23_PAD_GPMI_RDN__GPMI_RDN
 					>;
 					fsl,drive-strength = <2>;
 				};
@@ -207,12 +208,12 @@
 				mmc0_4bit_pins_a: mmc0-4bit@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x2020 /* MX23_PAD_SSP1_DATA0__SSP1_DATA0 */
-						0x2030 /* MX23_PAD_SSP1_DATA1__SSP1_DATA1 */
-						0x2040 /* MX23_PAD_SSP1_DATA2__SSP1_DATA2 */
-						0x2050 /* MX23_PAD_SSP1_DATA3__SSP1_DATA3 */
-						0x2000 /* MX23_PAD_SSP1_CMD__SSP1_CMD */
-						0x2060 /* MX23_PAD_SSP1_SCK__SSP1_SCK */
+						MX23_PAD_SSP1_DATA0__SSP1_DATA0
+						MX23_PAD_SSP1_DATA1__SSP1_DATA1
+						MX23_PAD_SSP1_DATA2__SSP1_DATA2
+						MX23_PAD_SSP1_DATA3__SSP1_DATA3
+						MX23_PAD_SSP1_CMD__SSP1_CMD
+						MX23_PAD_SSP1_SCK__SSP1_SCK
 					>;
 					fsl,drive-strength = <1>;
 					fsl,voltage = <1>;
@@ -222,17 +223,17 @@
 				mmc0_8bit_pins_a: mmc0-8bit@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x2020 /* MX23_PAD_SSP1_DATA0__SSP1_DATA0 */
-						0x2030 /* MX23_PAD_SSP1_DATA1__SSP1_DATA1 */
-						0x2040 /* MX23_PAD_SSP1_DATA2__SSP1_DATA2 */
-						0x2050 /* MX23_PAD_SSP1_DATA3__SSP1_DATA3 */
-						0x0082 /* MX23_PAD_GPMI_D08__SSP1_DATA4 */
-						0x0092 /* MX23_PAD_GPMI_D09__SSP1_DATA5 */
-						0x00a2 /* MX23_PAD_GPMI_D10__SSP1_DATA6 */
-						0x00b2 /* MX23_PAD_GPMI_D11__SSP1_DATA7 */
-						0x2000 /* MX23_PAD_SSP1_CMD__SSP1_CMD */
-						0x2010 /* MX23_PAD_SSP1_DETECT__SSP1_DETECT */
-						0x2060 /* MX23_PAD_SSP1_SCK__SSP1_SCK */
+						MX23_PAD_SSP1_DATA0__SSP1_DATA0
+						MX23_PAD_SSP1_DATA1__SSP1_DATA1
+						MX23_PAD_SSP1_DATA2__SSP1_DATA2
+						MX23_PAD_SSP1_DATA3__SSP1_DATA3
+						MX23_PAD_GPMI_D08__SSP1_DATA4
+						MX23_PAD_GPMI_D09__SSP1_DATA5
+						MX23_PAD_GPMI_D10__SSP1_DATA6
+						MX23_PAD_GPMI_D11__SSP1_DATA7
+						MX23_PAD_SSP1_CMD__SSP1_CMD
+						MX23_PAD_SSP1_DETECT__SSP1_DETECT
+						MX23_PAD_SSP1_SCK__SSP1_SCK
 					>;
 					fsl,drive-strength = <1>;
 					fsl,voltage = <1>;
@@ -241,8 +242,8 @@
 
 				mmc0_pins_fixup: mmc0-pins-fixup {
 					fsl,pinmux-ids = <
-						0x2010 /* MX23_PAD_SSP1_DETECT__SSP1_DETECT */
-						0x2060 /* MX23_PAD_SSP1_SCK__SSP1_SCK */
+						MX23_PAD_SSP1_DETECT__SSP1_DETECT
+						MX23_PAD_SSP1_SCK__SSP1_SCK
 					>;
 					fsl,pull-up = <0>;
 				};
@@ -250,7 +251,7 @@
 				pwm2_pins_a: pwm2@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x11c0 /* MX23_PAD_PWM2__PWM2 */
+						MX23_PAD_PWM2__PWM2
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -260,34 +261,34 @@
 				lcdif_24bit_pins_a: lcdif-24bit@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x1000 /* MX23_PAD_LCD_D00__LCD_D0 */
-						0x1010 /* MX23_PAD_LCD_D01__LCD_D1 */
-						0x1020 /* MX23_PAD_LCD_D02__LCD_D2 */
-						0x1030 /* MX23_PAD_LCD_D03__LCD_D3 */
-						0x1040 /* MX23_PAD_LCD_D04__LCD_D4 */
-						0x1050 /* MX23_PAD_LCD_D05__LCD_D5 */
-						0x1060 /* MX23_PAD_LCD_D06__LCD_D6 */
-						0x1070 /* MX23_PAD_LCD_D07__LCD_D7 */
-						0x1080 /* MX23_PAD_LCD_D08__LCD_D8 */
-						0x1090 /* MX23_PAD_LCD_D09__LCD_D9 */
-						0x10a0 /* MX23_PAD_LCD_D10__LCD_D10 */
-						0x10b0 /* MX23_PAD_LCD_D11__LCD_D11 */
-						0x10c0 /* MX23_PAD_LCD_D12__LCD_D12 */
-						0x10d0 /* MX23_PAD_LCD_D13__LCD_D13 */
-						0x10e0 /* MX23_PAD_LCD_D14__LCD_D14 */
-						0x10f0 /* MX23_PAD_LCD_D15__LCD_D15 */
-						0x1100 /* MX23_PAD_LCD_D16__LCD_D16 */
-						0x1110 /* MX23_PAD_LCD_D17__LCD_D17 */
-						0x0081 /* MX23_PAD_GPMI_D08__LCD_D18 */
-						0x0091 /* MX23_PAD_GPMI_D09__LCD_D19 */
-						0x00a1 /* MX23_PAD_GPMI_D10__LCD_D20 */
-						0x00b1 /* MX23_PAD_GPMI_D11__LCD_D21 */
-						0x00c1 /* MX23_PAD_GPMI_D12__LCD_D22 */
-						0x00d1 /* MX23_PAD_GPMI_D13__LCD_D23 */
-						0x1160 /* MX23_PAD_LCD_DOTCK__LCD_DOTCK */
-						0x1170 /* MX23_PAD_LCD_ENABLE__LCD_ENABLE */
-						0x1180 /* MX23_PAD_LCD_HSYNC__LCD_HSYNC */
-						0x1190 /* MX23_PAD_LCD_VSYNC__LCD_VSYNC */
+						MX23_PAD_LCD_D00__LCD_D00
+						MX23_PAD_LCD_D01__LCD_D01
+						MX23_PAD_LCD_D02__LCD_D02
+						MX23_PAD_LCD_D03__LCD_D03
+						MX23_PAD_LCD_D04__LCD_D04
+						MX23_PAD_LCD_D05__LCD_D05
+						MX23_PAD_LCD_D06__LCD_D06
+						MX23_PAD_LCD_D07__LCD_D07
+						MX23_PAD_LCD_D08__LCD_D08
+						MX23_PAD_LCD_D09__LCD_D09
+						MX23_PAD_LCD_D10__LCD_D10
+						MX23_PAD_LCD_D11__LCD_D11
+						MX23_PAD_LCD_D12__LCD_D12
+						MX23_PAD_LCD_D13__LCD_D13
+						MX23_PAD_LCD_D14__LCD_D14
+						MX23_PAD_LCD_D15__LCD_D15
+						MX23_PAD_LCD_D16__LCD_D16
+						MX23_PAD_LCD_D17__LCD_D17
+						MX23_PAD_GPMI_D08__LCD_D18
+						MX23_PAD_GPMI_D09__LCD_D19
+						MX23_PAD_GPMI_D10__LCD_D20
+						MX23_PAD_GPMI_D11__LCD_D21
+						MX23_PAD_GPMI_D12__LCD_D22
+						MX23_PAD_GPMI_D13__LCD_D23
+						MX23_PAD_LCD_DOTCK__LCD_DOTCK
+						MX23_PAD_LCD_ENABLE__LCD_ENABLE
+						MX23_PAD_LCD_HSYNC__LCD_HSYNC
+						MX23_PAD_LCD_VSYNC__LCD_VSYNC
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -297,10 +298,10 @@
 				spi2_pins_a: spi2@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x0182 /* MX23_PAD_GPMI_WRN__SSP2_SCK */
-						0x0142 /* MX23_PAD_GPMI_RDY1__SSP2_CMD */
-						0x0002 /* MX23_PAD_GPMI_D00__SSP2_DATA0 */
-						0x0032 /* MX23_PAD_GPMI_D03__SSP2_DATA3 */
+						MX23_PAD_GPMI_WRN__SSP2_SCK
+						MX23_PAD_GPMI_RDY1__SSP2_CMD
+						MX23_PAD_GPMI_D00__SSP2_DATA0
+						MX23_PAD_GPMI_D03__SSP2_DATA3
 					>;
 					fsl,drive-strength = <1>;
 					fsl,voltage = <1>;
diff --git a/arch/arm/boot/dts/imx28-apf28.dts b/arch/arm/boot/dts/imx28-apf28.dts
index 7eb075876c4c..7198fe3798c6 100644
--- a/arch/arm/boot/dts/imx28-apf28.dts
+++ b/arch/arm/boot/dts/imx28-apf28.dts
@@ -10,7 +10,7 @@
  */
 
 /dts-v1/;
-/include/ "imx28.dtsi"
+#include "imx28.dtsi"
 
 / {
 	model = "Armadeus Systems APF28 module";
diff --git a/arch/arm/boot/dts/imx28-apf28dev.dts b/arch/arm/boot/dts/imx28-apf28dev.dts
index b602494c152b..7d923cc56a93 100644
--- a/arch/arm/boot/dts/imx28-apf28dev.dts
+++ b/arch/arm/boot/dts/imx28-apf28dev.dts
@@ -10,7 +10,7 @@
  */
 
 /* APF28Dev is a docking board for the APF28 SOM */
-/include/ "imx28-apf28.dts"
+#include "imx28-apf28.dts"
 
 / {
 	model = "Armadeus Systems APF28Dev docking/development board";
@@ -41,13 +41,13 @@
 				hog_pins_apf28dev: hog@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x1103 /* MX28_PAD_LCD_D16__GPIO_1_16 */
-						0x1113 /* MX28_PAD_LCD_D17__GPIO_1_17 */
-						0x1123 /* MX28_PAD_LCD_D18__GPIO_1_18 */
-						0x1133 /* MX28_PAD_LCD_D19__GPIO_1_19 */
-						0x1143 /* MX28_PAD_LCD_D20__GPIO_1_20 */
-						0x1153 /* MX28_PAD_LCD_D21__GPIO_1_21 */
-						0x1163 /* MX28_PAD_LCD_D22__GPIO_1_22 */
+						MX28_PAD_LCD_D16__GPIO_1_16
+						MX28_PAD_LCD_D17__GPIO_1_17
+						MX28_PAD_LCD_D18__GPIO_1_18
+						MX28_PAD_LCD_D19__GPIO_1_19
+						MX28_PAD_LCD_D20__GPIO_1_20
+						MX28_PAD_LCD_D21__GPIO_1_21
+						MX28_PAD_LCD_D22__GPIO_1_22
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -57,10 +57,10 @@
 				lcdif_pins_apf28dev: lcdif-apf28dev@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x1181 /* MX28_PAD_LCD_RD_E__LCD_VSYNC */
-						0x1191 /* MX28_PAD_LCD_WR_RWN__LCD_HSYNC */
-						0x11a1 /* MX28_PAD_LCD_RS__LCD_DOTCLK */
-						0x11b1 /* MX28_PAD_LCD_CS__LCD_ENABLE */
+						MX28_PAD_LCD_RD_E__LCD_VSYNC
+						MX28_PAD_LCD_WR_RWN__LCD_HSYNC
+						MX28_PAD_LCD_RS__LCD_DOTCLK
+						MX28_PAD_LCD_CS__LCD_ENABLE
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
diff --git a/arch/arm/boot/dts/imx28-apx4devkit.dts b/arch/arm/boot/dts/imx28-apx4devkit.dts
index 0e7fed47bd8d..cb19dc1e7743 100644
--- a/arch/arm/boot/dts/imx28-apx4devkit.dts
+++ b/arch/arm/boot/dts/imx28-apx4devkit.dts
@@ -1,5 +1,5 @@
 /dts-v1/;
-/include/ "imx28.dtsi"
+#include "imx28.dtsi"
 
 / {
 	model = "Bluegiga APX4 Development Kit";
@@ -40,13 +40,13 @@
 				hog_pins_a: hog@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x0113 /* MX28_PAD_GPMI_CE1N__GPIO_0_17 */
-						0x0153 /* MX28_PAD_GPMI_RDY1__GPIO_0_21 */
-						0x2123 /* MX28_PAD_SSP2_MISO__GPIO_2_18 */
-						0x2131 /* MX28_PAD_SSP2_SS0__GPIO_2_19 */
-						0x31c3 /* MX28_PAD_PWM3__GPIO_3_28 */
-						0x31e3 /* MX28_PAD_LCD_RESET__GPIO_3_30 */
-						0x4143 /* MX28_PAD_JTAG_RTCK__GPIO_4_20 */
+						MX28_PAD_GPMI_CE1N__GPIO_0_17
+						MX28_PAD_GPMI_RDY1__GPIO_0_21
+						MX28_PAD_SSP2_MISO__GPIO_2_18
+						MX28_PAD_SSP2_SS0__AUART3_TX /* was: 0x2131 - MX28_PAD_SSP2_SS0__GPIO_2_19 */
+						MX28_PAD_PWM3__GPIO_3_28
+						MX28_PAD_LCD_RESET__GPIO_3_30
+						MX28_PAD_JTAG_RTCK__GPIO_4_20
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -56,10 +56,10 @@
 				lcdif_pins_apx4: lcdif-apx4@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x1181 /* MX28_PAD_LCD_RD_E__LCD_VSYNC */
-						0x1191 /* MX28_PAD_LCD_WR_RWN__LCD_HSYNC */
-						0x11a1 /* MX28_PAD_LCD_RS__LCD_DOTCLK */
-						0x11b1 /* MX28_PAD_LCD_CS__LCD_ENABLE */
+						MX28_PAD_LCD_RD_E__LCD_VSYNC
+						MX28_PAD_LCD_WR_RWN__LCD_HSYNC
+						MX28_PAD_LCD_RS__LCD_DOTCLK
+						MX28_PAD_LCD_CS__LCD_ENABLE
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -69,12 +69,12 @@
 				mmc2_4bit_pins_apx4: mmc2-4bit-apx4@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x2041 /* MX28_PAD_SSP0_DATA4__SSP2_D0 */
-						0x2051 /* MX28_PAD_SSP0_DATA5__SSP2_D3 */
-						0x2061 /* MX28_PAD_SSP0_DATA6__SSP2_CMD */
-						0x2071 /* MX28_PAD_SSP0_DATA7__SSP2_SCK */
-						0x2141 /* MX28_PAD_SSP2_SS1__SSP2_D1 */
-						0x2151 /* MX28_PAD_SSP2_SS2__SSP2_D2 */
+						MX28_PAD_SSP0_DATA4__SSP2_D0
+						MX28_PAD_SSP0_DATA5__SSP2_D3
+						MX28_PAD_SSP0_DATA6__SSP2_CMD
+						MX28_PAD_SSP0_DATA7__SSP2_SCK
+						MX28_PAD_SSP2_SS1__SSP2_D1
+						MX28_PAD_SSP2_SS2__SSP2_D2
 					>;
 					fsl,drive-strength = <1>;
 					fsl,voltage = <1>;
@@ -83,7 +83,7 @@
 
 				mmc2_sck_cfg_apx4: mmc2-sck-cfg-apx4 {
 					fsl,pinmux-ids = <
-						0x2071 /* MX28_PAD_SSP0_DATA7__SSP2_SCK */
+						MX28_PAD_SSP0_DATA7__SSP2_SCK
 					>;
 					fsl,drive-strength = <2>;
 					fsl,pull-up = <0>;
diff --git a/arch/arm/boot/dts/imx28-cfa10036.dts b/arch/arm/boot/dts/imx28-cfa10036.dts
index 1ec8c94bbac9..2474207951fb 100644
--- a/arch/arm/boot/dts/imx28-cfa10036.dts
+++ b/arch/arm/boot/dts/imx28-cfa10036.dts
@@ -10,7 +10,7 @@
  */
 
 /dts-v1/;
-/include/ "imx28.dtsi"
+#include "imx28.dtsi"
 
 / {
 	model = "Crystalfontz CFA-10036 Board";
@@ -26,7 +26,7 @@
 				ssd1306_cfa10036: ssd1306-10036@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x2073 /* MX28_PAD_SSP0_D7__GPIO_2_7 */
+						MX28_PAD_SSP0_DATA7__GPIO_2_7
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -36,7 +36,7 @@
 				led_pins_cfa10036: leds-10036@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x3043 /* MX28_PAD_AUART1_RX__GPIO_3_4 */
+						MX28_PAD_AUART1_RX__GPIO_3_4
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -46,7 +46,7 @@
 				usb0_otg_cfa10036: otg-10036@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x0142 /* MX28_PAD_GPMI_READY0__USB0_ID */
+						MX28_PAD_GPMI_RDY0__USB0_ID
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
diff --git a/arch/arm/boot/dts/imx28-cfa10037.dts b/arch/arm/boot/dts/imx28-cfa10037.dts
index 182b99fe35f3..42a9a99880af 100644
--- a/arch/arm/boot/dts/imx28-cfa10037.dts
+++ b/arch/arm/boot/dts/imx28-cfa10037.dts
@@ -13,7 +13,7 @@
  * The CFA-10049 is an expansion board for the CFA-10036 module, thus we
  * need to include the CFA-10036 DTS.
  */
-/include/ "imx28-cfa10036.dts"
+#include "imx28-cfa10036.dts"
 
 / {
 	model = "Crystalfontz CFA-10037 Board";
@@ -25,7 +25,7 @@
 				usb_pins_cfa10037: usb-10037@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x0073 /* MX28_PAD_GPMI_D7__GPIO_0_7 */
+						MX28_PAD_GPMI_D07__GPIO_0_7
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -35,7 +35,7 @@
 				mac0_pins_cfa10037: mac0-10037@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x2153 /* MX28_PAD_SSP2_D5__GPIO_2_21 */
+						MX28_PAD_SSP2_SS2__GPIO_2_21
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
diff --git a/arch/arm/boot/dts/imx28-cfa10049.dts b/arch/arm/boot/dts/imx28-cfa10049.dts
index 06e4cfaf7dd2..9ee2566bf4cb 100644
--- a/arch/arm/boot/dts/imx28-cfa10049.dts
+++ b/arch/arm/boot/dts/imx28-cfa10049.dts
@@ -13,7 +13,7 @@
  * The CFA-10049 is an expansion board for the CFA-10036 module, thus we
  * need to include the CFA-10036 DTS.
  */
-/include/ "imx28-cfa10036.dts"
+#include "imx28-cfa10036.dts"
 
 / {
 	model = "Crystalfontz CFA-10049 Board";
@@ -25,7 +25,7 @@
 				usb_pins_cfa10049: usb-10049@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x0073 /* MX28_PAD_GPMI_D7__GPIO_0_7 */
+						MX28_PAD_GPMI_D07__GPIO_0_7
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -35,8 +35,8 @@
 				i2cmux_pins_cfa10049: i2cmux-10049@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x1163 /* MX28_PAD_LCD_D22__GPIO_1_22 */
-						0x1173 /* MX28_PAD_LCD_D22__GPIO_1_23 */
+						MX28_PAD_LCD_D22__GPIO_1_22
+						MX28_PAD_LCD_D23__GPIO_1_23
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -46,7 +46,7 @@
 				mac0_pins_cfa10049: mac0-10049@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x2153 /* MX28_PAD_SSP2_D5__GPIO_2_21 */
+						MX28_PAD_SSP2_SS2__GPIO_2_21
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -56,7 +56,7 @@
 				pca_pins_cfa10049: pca-10049@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x2133 /* MX28_PAD_SSP2_D3__GPIO_2_19 */
+						MX28_PAD_SSP2_SS0__GPIO_2_19
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -66,8 +66,8 @@
 				rotary_pins_cfa10049: rotary-10049@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x3183 /* MX28_PAD_I2C0_SCL__GPIO_3_24 */
-						0x3193 /* MX28_PAD_I2C0_SDA__GPIO_3_25 */
+						MX28_PAD_I2C0_SCL__GPIO_3_24
+						MX28_PAD_I2C0_SDA__GPIO_3_25
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -77,7 +77,7 @@
 				rotary_btn_pins_cfa10049: rotary-btn-10049@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x31a3 /* MX28_PAD_SAIF_SDATA0__GPIO_3_26 */
+						MX28_PAD_SAIF1_SDATA0__GPIO_3_26
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -87,10 +87,10 @@
 				spi2_pins_cfa10049: spi2-cfa10049@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x2103 /* MX28_PAD_SSP2_SCK__GPIO_2_16 */
-						0x2113 /* MX28_PAD_SSP2_CMD__GPIO_2_17 */
-						0x2123 /* MX28_PAD_SSP2_D0__GPIO_2_18 */
-						0x3053 /* MX28_PAD_AUART1_TX__GPIO_3_5 */
+						MX28_PAD_SSP2_SCK__GPIO_2_16
+						MX28_PAD_SSP2_MOSI__GPIO_2_17
+						MX28_PAD_SSP2_MISO__GPIO_2_18
+						MX28_PAD_AUART1_TX__GPIO_3_5
 					>;
 					fsl,drive-strength = <1>;
 					fsl,voltage = <1>;
@@ -100,11 +100,11 @@
 				spi3_pins_cfa10049: spi3-cfa10049@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x0183 /* MX28_PAD_GPMI_RDN__GPIO_0_24 */
-						0x01c3 /* MX28_PAD_GPMI_RESETN__GPIO_0_28 */
-						0x0113 /* MX28_PAD_GPMI_CE1N__GPIO_0_17 */
-						0x01a3 /* MX28_PAD_GPMI_ALE__GPIO_0_26 */
-						0x01b3 /* MX28_PAD_GPMI_CLE__GPIO_0_27 */
+						MX28_PAD_GPMI_RDN__GPIO_0_24
+						MX28_PAD_GPMI_RESETN__GPIO_0_28
+						MX28_PAD_GPMI_CE1N__GPIO_0_17
+						MX28_PAD_GPMI_ALE__GPIO_0_26
+						MX28_PAD_GPMI_CLE__GPIO_0_27
 					>;
 					fsl,drive-strength = <1>;
 					fsl,voltage = <1>;
@@ -114,24 +114,24 @@
 				lcdif_18bit_pins_cfa10049: lcdif-18bit@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x1000 /* MX28_PAD_LCD_D00__LCD_D0 */
-						0x1010 /* MX28_PAD_LCD_D01__LCD_D1 */
-						0x1020 /* MX28_PAD_LCD_D02__LCD_D2 */
-						0x1030 /* MX28_PAD_LCD_D03__LCD_D3 */
-						0x1040 /* MX28_PAD_LCD_D04__LCD_D4 */
-						0x1050 /* MX28_PAD_LCD_D05__LCD_D5 */
-						0x1060 /* MX28_PAD_LCD_D06__LCD_D6 */
-						0x1070 /* MX28_PAD_LCD_D07__LCD_D7 */
-						0x1080 /* MX28_PAD_LCD_D08__LCD_D8 */
-						0x1090 /* MX28_PAD_LCD_D09__LCD_D9 */
-						0x10a0 /* MX28_PAD_LCD_D10__LCD_D10 */
-						0x10b0 /* MX28_PAD_LCD_D11__LCD_D11 */
-						0x10c0 /* MX28_PAD_LCD_D12__LCD_D12 */
-						0x10d0 /* MX28_PAD_LCD_D13__LCD_D13 */
-						0x10e0 /* MX28_PAD_LCD_D14__LCD_D14 */
-						0x10f0 /* MX28_PAD_LCD_D15__LCD_D15 */
-						0x1100 /* MX28_PAD_LCD_D16__LCD_D16 */
-						0x1110 /* MX28_PAD_LCD_D17__LCD_D17 */
+						MX28_PAD_LCD_D00__LCD_D0
+						MX28_PAD_LCD_D01__LCD_D1
+						MX28_PAD_LCD_D02__LCD_D2
+						MX28_PAD_LCD_D03__LCD_D3
+						MX28_PAD_LCD_D04__LCD_D4
+						MX28_PAD_LCD_D05__LCD_D5
+						MX28_PAD_LCD_D06__LCD_D6
+						MX28_PAD_LCD_D07__LCD_D7
+						MX28_PAD_LCD_D08__LCD_D8
+						MX28_PAD_LCD_D09__LCD_D9
+						MX28_PAD_LCD_D10__LCD_D10
+						MX28_PAD_LCD_D11__LCD_D11
+						MX28_PAD_LCD_D12__LCD_D12
+						MX28_PAD_LCD_D13__LCD_D13
+						MX28_PAD_LCD_D14__LCD_D14
+						MX28_PAD_LCD_D15__LCD_D15
+						MX28_PAD_LCD_D16__LCD_D16
+						MX28_PAD_LCD_D17__LCD_D17
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -141,10 +141,10 @@
 				lcdif_pins_cfa10049: lcdif-evk@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x1181 /* MX28_PAD_LCD_RD_E__LCD_VSYNC */
-						0x1191 /* MX28_PAD_LCD_WR_RWN__LCD_HSYNC */
-						0x11a1 /* MX28_PAD_LCD_RS__LCD_DOTCLK */
-						0x11b1 /* MX28_PAD_LCD_CS__LCD_ENABLE */
+						MX28_PAD_LCD_RD_E__LCD_VSYNC
+						MX28_PAD_LCD_WR_RWN__LCD_HSYNC
+						MX28_PAD_LCD_RS__LCD_DOTCLK
+						MX28_PAD_LCD_CS__LCD_ENABLE
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -154,7 +154,7 @@
 				lcdif_pins_cfa10049_pullup: lcdif-10049-pullup@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x31e3 /* MX28_PAD_LCD_RESET__GPIO_3_30 */
+						MX28_PAD_LCD_RESET__GPIO_3_30
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -164,7 +164,7 @@
 				w1_gpio_pins: w1-gpio@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x1153 /* MX28_PAD_LCD_D21__GPIO_1_21 */
+						MX28_PAD_LCD_D21__GPIO_1_21
 					>;
 					fsl,drive-strength = <1>;
 					fsl,voltage = <1>;
diff --git a/arch/arm/boot/dts/imx28-cfa10055.dts b/arch/arm/boot/dts/imx28-cfa10055.dts
index 171bcbe1ec4b..8b262a26f50c 100644
--- a/arch/arm/boot/dts/imx28-cfa10055.dts
+++ b/arch/arm/boot/dts/imx28-cfa10055.dts
@@ -14,7 +14,7 @@
  * The CFA-10055 is an expansion board for the CFA-10036 module and
  * CFA-10037, thus we need to include the CFA-10037 DTS.
  */
-/include/ "imx28-cfa10037.dts"
+#include "imx28-cfa10037.dts"
 
 / {
 	model = "Crystalfontz CFA-10055 Board";
@@ -26,10 +26,10 @@
 				spi2_pins_cfa10055: spi2-cfa10055@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x2103 /* MX28_PAD_SSP2_SCK__GPIO_2_16 */
-						0x2113 /* MX28_PAD_SSP2_CMD__GPIO_2_17 */
-						0x2123 /* MX28_PAD_SSP2_D0__GPIO_2_18 */
-						0x3053 /* MX28_PAD_AUART1_TX__GPIO_3_5 */
+						MX28_PAD_SSP2_SCK__GPIO_2_16
+						MX28_PAD_SSP2_MOSI__GPIO_2_17
+						MX28_PAD_SSP2_MISO__GPIO_2_18
+						MX28_PAD_AUART1_TX__GPIO_3_5
 					>;
 					fsl,drive-strength = <1>;
 					fsl,voltage = <1>;
@@ -39,24 +39,24 @@
 				lcdif_18bit_pins_cfa10055: lcdif-18bit@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x1000 /* MX28_PAD_LCD_D00__LCD_D0 */
-						0x1010 /* MX28_PAD_LCD_D01__LCD_D1 */
-						0x1020 /* MX28_PAD_LCD_D02__LCD_D2 */
-						0x1030 /* MX28_PAD_LCD_D03__LCD_D3 */
-						0x1040 /* MX28_PAD_LCD_D04__LCD_D4 */
-						0x1050 /* MX28_PAD_LCD_D05__LCD_D5 */
-						0x1060 /* MX28_PAD_LCD_D06__LCD_D6 */
-						0x1070 /* MX28_PAD_LCD_D07__LCD_D7 */
-						0x1080 /* MX28_PAD_LCD_D08__LCD_D8 */
-						0x1090 /* MX28_PAD_LCD_D09__LCD_D9 */
-						0x10a0 /* MX28_PAD_LCD_D10__LCD_D10 */
-						0x10b0 /* MX28_PAD_LCD_D11__LCD_D11 */
-						0x10c0 /* MX28_PAD_LCD_D12__LCD_D12 */
-						0x10d0 /* MX28_PAD_LCD_D13__LCD_D13 */
-						0x10e0 /* MX28_PAD_LCD_D14__LCD_D14 */
-						0x10f0 /* MX28_PAD_LCD_D15__LCD_D15 */
-						0x1100 /* MX28_PAD_LCD_D16__LCD_D16 */
-						0x1110 /* MX28_PAD_LCD_D17__LCD_D17 */
+						MX28_PAD_LCD_D00__LCD_D0
+						MX28_PAD_LCD_D01__LCD_D1
+						MX28_PAD_LCD_D02__LCD_D2
+						MX28_PAD_LCD_D03__LCD_D3
+						MX28_PAD_LCD_D04__LCD_D4
+						MX28_PAD_LCD_D05__LCD_D5
+						MX28_PAD_LCD_D06__LCD_D6
+						MX28_PAD_LCD_D07__LCD_D7
+						MX28_PAD_LCD_D08__LCD_D8
+						MX28_PAD_LCD_D09__LCD_D9
+						MX28_PAD_LCD_D10__LCD_D10
+						MX28_PAD_LCD_D11__LCD_D11
+						MX28_PAD_LCD_D12__LCD_D12
+						MX28_PAD_LCD_D13__LCD_D13
+						MX28_PAD_LCD_D14__LCD_D14
+						MX28_PAD_LCD_D15__LCD_D15
+						MX28_PAD_LCD_D16__LCD_D16
+						MX28_PAD_LCD_D17__LCD_D17
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -66,10 +66,10 @@
 				lcdif_pins_cfa10055: lcdif-evk@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x1181 /* MX28_PAD_LCD_RD_E__LCD_VSYNC */
-						0x1191 /* MX28_PAD_LCD_WR_RWN__LCD_HSYNC */
-						0x11a1 /* MX28_PAD_LCD_RS__LCD_DOTCLK */
-						0x11b1 /* MX28_PAD_LCD_CS__LCD_ENABLE */
+						MX28_PAD_LCD_RD_E__LCD_VSYNC
+						MX28_PAD_LCD_WR_RWN__LCD_HSYNC
+						MX28_PAD_LCD_RS__LCD_DOTCLK
+						MX28_PAD_LCD_CS__LCD_ENABLE
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -79,7 +79,7 @@
 				lcdif_pins_cfa10055_pullup: lcdif-10055-pullup@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x31e3 /* MX28_PAD_LCD_RESET__GPIO_3_30 */
+						MX28_PAD_LCD_RESET__GPIO_3_30
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
diff --git a/arch/arm/boot/dts/imx28-cfa10056.dts b/arch/arm/boot/dts/imx28-cfa10056.dts
index b45dd0e4ee57..f65199878122 100644
--- a/arch/arm/boot/dts/imx28-cfa10056.dts
+++ b/arch/arm/boot/dts/imx28-cfa10056.dts
@@ -13,7 +13,7 @@
  * The CFA-10055 is an expansion board for the CFA-10036 module and
  * CFA-10037, thus we need to include the CFA-10037 DTS.
  */
-/include/ "imx28-cfa10037.dts"
+#include "imx28-cfa10037.dts"
 
 / {
 	model = "Crystalfontz CFA-10056 Board";
@@ -25,10 +25,10 @@
 				spi2_pins_cfa10056: spi2-cfa10056@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x2103 /* MX28_PAD_SSP2_SCK__GPIO_2_16 */
-						0x2113 /* MX28_PAD_SSP2_CMD__GPIO_2_17 */
-						0x2123 /* MX28_PAD_SSP2_D0__GPIO_2_18 */
-						0x3053 /* MX28_PAD_AUART1_TX__GPIO_3_5 */
+						MX28_PAD_SSP2_SCK__GPIO_2_16
+						MX28_PAD_SSP2_MOSI__GPIO_2_17
+						MX28_PAD_SSP2_MISO__GPIO_2_18
+						MX28_PAD_AUART1_TX__GPIO_3_5
 					>;
 					fsl,drive-strength = <1>;
 					fsl,voltage = <1>;
@@ -38,10 +38,10 @@
 				lcdif_pins_cfa10056: lcdif-10056@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x1181 /* MX28_PAD_LCD_RD_E__LCD_VSYNC */
-						0x1191 /* MX28_PAD_LCD_WR_RWN__LCD_HSYNC */
-						0x11a1 /* MX28_PAD_LCD_RS__LCD_DOTCLK */
-						0x11b1 /* MX28_PAD_LCD_CS__LCD_ENABLE */
+						MX28_PAD_LCD_RD_E__LCD_VSYNC
+						MX28_PAD_LCD_WR_RWN__LCD_HSYNC
+						MX28_PAD_LCD_RS__LCD_DOTCLK
+						MX28_PAD_LCD_CS__LCD_ENABLE
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -51,7 +51,7 @@
 				lcdif_pins_cfa10056_pullup: lcdif-10056-pullup@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x31e3 /* MX28_PAD_LCD_RESET__GPIO_3_30 */
+						MX28_PAD_LCD_RESET__GPIO_3_30
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
diff --git a/arch/arm/boot/dts/imx28-cfa10057.dts b/arch/arm/boot/dts/imx28-cfa10057.dts
index 0333c0532f28..76430ca3e53d 100644
--- a/arch/arm/boot/dts/imx28-cfa10057.dts
+++ b/arch/arm/boot/dts/imx28-cfa10057.dts
@@ -14,7 +14,7 @@
  * The CFA-10057 is an expansion board for the CFA-10036 module, thus we
  * need to include the CFA-10036 DTS.
  */
-/include/ "imx28-cfa10036.dts"
+#include "imx28-cfa10036.dts"
 
 / {
 	model = "Crystalfontz CFA-10057 Board";
@@ -26,7 +26,7 @@
 				usb_pins_cfa10057: usb-10057@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x0073 /* MX28_PAD_GPMI_D7__GPIO_0_7 */
+						MX28_PAD_GPMI_D07__GPIO_0_7
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -36,24 +36,24 @@
 				lcdif_18bit_pins_cfa10057: lcdif-18bit@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x1000 /* MX28_PAD_LCD_D00__LCD_D0 */
-						0x1010 /* MX28_PAD_LCD_D01__LCD_D1 */
-						0x1020 /* MX28_PAD_LCD_D02__LCD_D2 */
-						0x1030 /* MX28_PAD_LCD_D03__LCD_D3 */
-						0x1040 /* MX28_PAD_LCD_D04__LCD_D4 */
-						0x1050 /* MX28_PAD_LCD_D05__LCD_D5 */
-						0x1060 /* MX28_PAD_LCD_D06__LCD_D6 */
-						0x1070 /* MX28_PAD_LCD_D07__LCD_D7 */
-						0x1080 /* MX28_PAD_LCD_D08__LCD_D8 */
-						0x1090 /* MX28_PAD_LCD_D09__LCD_D9 */
-						0x10a0 /* MX28_PAD_LCD_D10__LCD_D10 */
-						0x10b0 /* MX28_PAD_LCD_D11__LCD_D11 */
-						0x10c0 /* MX28_PAD_LCD_D12__LCD_D12 */
-						0x10d0 /* MX28_PAD_LCD_D13__LCD_D13 */
-						0x10e0 /* MX28_PAD_LCD_D14__LCD_D14 */
-						0x10f0 /* MX28_PAD_LCD_D15__LCD_D15 */
-						0x1100 /* MX28_PAD_LCD_D16__LCD_D16 */
-						0x1110 /* MX28_PAD_LCD_D17__LCD_D17 */
+						MX28_PAD_LCD_D00__LCD_D0
+						MX28_PAD_LCD_D01__LCD_D1
+						MX28_PAD_LCD_D02__LCD_D2
+						MX28_PAD_LCD_D03__LCD_D3
+						MX28_PAD_LCD_D04__LCD_D4
+						MX28_PAD_LCD_D05__LCD_D5
+						MX28_PAD_LCD_D06__LCD_D6
+						MX28_PAD_LCD_D07__LCD_D7
+						MX28_PAD_LCD_D08__LCD_D8
+						MX28_PAD_LCD_D09__LCD_D9
+						MX28_PAD_LCD_D10__LCD_D10
+						MX28_PAD_LCD_D11__LCD_D11
+						MX28_PAD_LCD_D12__LCD_D12
+						MX28_PAD_LCD_D13__LCD_D13
+						MX28_PAD_LCD_D14__LCD_D14
+						MX28_PAD_LCD_D15__LCD_D15
+						MX28_PAD_LCD_D16__LCD_D16
+						MX28_PAD_LCD_D17__LCD_D17
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -63,10 +63,10 @@
 				lcdif_pins_cfa10057: lcdif-evk@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x1181 /* MX28_PAD_LCD_RD_E__LCD_VSYNC */
-						0x1191 /* MX28_PAD_LCD_WR_RWN__LCD_HSYNC */
-						0x11a1 /* MX28_PAD_LCD_RS__LCD_DOTCLK */
-						0x11b1 /* MX28_PAD_LCD_CS__LCD_ENABLE */
+						MX28_PAD_LCD_RD_E__LCD_VSYNC
+						MX28_PAD_LCD_WR_RWN__LCD_HSYNC
+						MX28_PAD_LCD_RS__LCD_DOTCLK
+						MX28_PAD_LCD_CS__LCD_ENABLE
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
diff --git a/arch/arm/boot/dts/imx28-cfa10058.dts b/arch/arm/boot/dts/imx28-cfa10058.dts
index 64c64c55a82a..502be77d32b8 100644
--- a/arch/arm/boot/dts/imx28-cfa10058.dts
+++ b/arch/arm/boot/dts/imx28-cfa10058.dts
@@ -14,7 +14,7 @@
  * The CFA-10058 is an expansion board for the CFA-10036 module, thus we
  * need to include the CFA-10036 DTS.
  */
-/include/ "imx28-cfa10036.dts"
+#include "imx28-cfa10036.dts"
 
 / {
 	model = "Crystalfontz CFA-10058 Board";
@@ -26,7 +26,7 @@
 				usb_pins_cfa10058: usb-10058@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x0073 /* MX28_PAD_GPMI_D7__GPIO_0_7 */
+						MX28_PAD_GPMI_D07__GPIO_0_7
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -36,10 +36,10 @@
 				lcdif_pins_cfa10058: lcdif-10058@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x1181 /* MX28_PAD_LCD_RD_E__LCD_VSYNC */
-						0x1191 /* MX28_PAD_LCD_WR_RWN__LCD_HSYNC */
-						0x11a1 /* MX28_PAD_LCD_RS__LCD_DOTCLK */
-						0x11b1 /* MX28_PAD_LCD_CS__LCD_ENABLE */
+						MX28_PAD_LCD_RD_E__LCD_VSYNC
+						MX28_PAD_LCD_WR_RWN__LCD_HSYNC
+						MX28_PAD_LCD_RS__LCD_DOTCLK
+						MX28_PAD_LCD_CS__LCD_ENABLE
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts
index 5f9c0a0dcc5a..023eaf775487 100644
--- a/arch/arm/boot/dts/imx28-evk.dts
+++ b/arch/arm/boot/dts/imx28-evk.dts
@@ -10,7 +10,7 @@
  */
 
 /dts-v1/;
-/include/ "imx28.dtsi"
+#include "imx28.dtsi"
 
 / {
 	model = "Freescale i.MX28 Evaluation Kit";
@@ -70,14 +70,14 @@
 				hog_pins_a: hog@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x20d3 /* MX28_PAD_SSP1_CMD__GPIO_2_13 */
-						0x20f3 /* MX28_PAD_SSP1_DATA3__GPIO_2_15 */
-						0x40d3 /* MX28_PAD_ENET0_RX_CLK__GPIO_4_13 */
-						0x20c3 /* MX28_PAD_SSP1_SCK__GPIO_2_12 */
-						0x31c3 /* MX28_PAD_PWM3__GPIO_3_28 */
-						0x31e3 /* MX28_PAD_LCD_RESET__GPIO_3_30 */
-						0x3083 /* MX28_PAD_AUART2_RX__GPIO_3_8 */
-						0x3093 /* MX28_PAD_AUART2_TX__GPIO_3_9 */
+						MX28_PAD_SSP1_CMD__GPIO_2_13
+						MX28_PAD_SSP1_DATA3__GPIO_2_15
+						MX28_PAD_ENET0_RX_CLK__GPIO_4_13
+						MX28_PAD_SSP1_SCK__GPIO_2_12
+						MX28_PAD_PWM3__GPIO_3_28
+						MX28_PAD_LCD_RESET__GPIO_3_30
+						MX28_PAD_AUART2_RX__GPIO_3_8
+						MX28_PAD_AUART2_TX__GPIO_3_9
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -87,7 +87,7 @@
 				led_pin_gpio3_5: led_gpio3_5@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x3053 /* MX28_PAD_AUART1_TX__GPIO_3_5 */
+						MX28_PAD_AUART1_TX__GPIO_3_5
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -97,8 +97,8 @@
 				gpmi_pins_evk: gpmi-nand-evk@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x0110 /* MX28_PAD_GPMI_CE1N__GPMI_CE1N */
-						0x0150 /* MX28_PAD_GPMI_RDY1__GPMI_READY1 */
+						MX28_PAD_GPMI_CE1N__GPMI_CE1N
+						MX28_PAD_GPMI_RDY1__GPMI_READY1
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -108,10 +108,10 @@
 				lcdif_pins_evk: lcdif-evk@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x1181 /* MX28_PAD_LCD_RD_E__LCD_VSYNC */
-						0x1191 /* MX28_PAD_LCD_WR_RWN__LCD_HSYNC */
-						0x11a1 /* MX28_PAD_LCD_RS__LCD_DOTCLK */
-						0x11b1 /* MX28_PAD_LCD_CS__LCD_ENABLE */
+						MX28_PAD_LCD_RD_E__LCD_VSYNC
+						MX28_PAD_LCD_WR_RWN__LCD_HSYNC
+						MX28_PAD_LCD_RS__LCD_DOTCLK
+						MX28_PAD_LCD_CS__LCD_ENABLE
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
diff --git a/arch/arm/boot/dts/imx28-m28evk.dts b/arch/arm/boot/dts/imx28-m28evk.dts
index 0d322a2bebaf..9f3271dcc7d9 100644
--- a/arch/arm/boot/dts/imx28-m28evk.dts
+++ b/arch/arm/boot/dts/imx28-m28evk.dts
@@ -10,7 +10,7 @@
  */
 
 /dts-v1/;
-/include/ "imx28.dtsi"
+#include "imx28.dtsi"
 
 / {
 	model = "DENX M28EVK";
@@ -92,11 +92,11 @@
 				hog_pins_a: hog@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x31c3 /* MX28_PAD_PWM3__GPIO_3_28 */
-						0x30a3 /* MX28_PAD_AUART2_CTS__GPIO_3_10 */
-						0x30b3 /* MX28_PAD_AUART2_RTS__GPIO_3_11 */
-						0x30c3 /* MX28_PAD_AUART3_RX__GPIO_3_12 */
-						0x30d3 /* MX28_PAD_AUART3_TX__GPIO_3_13 */
+						MX28_PAD_PWM3__GPIO_3_28
+						MX28_PAD_AUART2_CTS__GPIO_3_10
+						MX28_PAD_AUART2_RTS__GPIO_3_11
+						MX28_PAD_AUART3_RX__GPIO_3_12
+						MX28_PAD_AUART3_TX__GPIO_3_13
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -106,8 +106,8 @@
 				lcdif_pins_m28: lcdif-m28@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x11e0 /* MX28_PAD_LCD_DOTCLK__LCD_DOTCLK */
-						0x11f0 /* MX28_PAD_LCD_ENABLE__LCD_ENABLE */
+						MX28_PAD_LCD_DOTCLK__LCD_DOTCLK
+						MX28_PAD_LCD_ENABLE__LCD_ENABLE
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
diff --git a/arch/arm/boot/dts/imx28-sps1.dts b/arch/arm/boot/dts/imx28-sps1.dts
index 6c6a5442800a..4613522a1cbe 100644
--- a/arch/arm/boot/dts/imx28-sps1.dts
+++ b/arch/arm/boot/dts/imx28-sps1.dts
@@ -10,7 +10,7 @@
  */
 
 /dts-v1/;
-/include/ "imx28.dtsi"
+#include "imx28.dtsi"
 
 / {
 	model = "SchulerControl GmbH, SC SPS 1";
@@ -29,9 +29,9 @@
 				hog_pins_a: hog-gpios@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x0003 /* MX28_PAD_GPMI_D00__GPIO_0_0 */
-						0x0033 /* MX28_PAD_GPMI_D03__GPIO_0_3 */
-						0x0063 /* MX28_PAD_GPMI_D06__GPIO_0_6 */
+						MX28_PAD_GPMI_D00__GPIO_0_0
+						MX28_PAD_GPMI_D03__GPIO_0_3
+						MX28_PAD_GPMI_D06__GPIO_0_6
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
diff --git a/arch/arm/boot/dts/imx28-tx28.dts b/arch/arm/boot/dts/imx28-tx28.dts
index 37be532f0055..3dbe1d7da467 100644
--- a/arch/arm/boot/dts/imx28-tx28.dts
+++ b/arch/arm/boot/dts/imx28-tx28.dts
@@ -1,5 +1,5 @@
 /dts-v1/;
-/include/ "imx28.dtsi"
+#include "imx28.dtsi"
 
 / {
 	model = "Ka-Ro electronics TX28 module";
diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
index c596b6da3872..1f16193f3da9 100644
--- a/arch/arm/boot/dts/imx28.dtsi
+++ b/arch/arm/boot/dts/imx28.dtsi
@@ -9,7 +9,8 @@
  * http://www.gnu.org/copyleft/gpl.html
  */
 
-/include/ "skeleton.dtsi"
+#include "skeleton.dtsi"
+#include "imx28-pinfunc.h"
 
 / {
 	interrupt-parent = <&icoll>;
@@ -207,8 +208,8 @@
 				duart_pins_a: duart@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x3102 /* MX28_PAD_PWM0__DUART_RX */
-						0x3112 /* MX28_PAD_PWM1__DUART_TX */
+						MX28_PAD_PWM0__DUART_RX
+						MX28_PAD_PWM1__DUART_TX
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -218,8 +219,8 @@
 				duart_pins_b: duart@1 {
 					reg = <1>;
 					fsl,pinmux-ids = <
-						0x3022 /* MX28_PAD_AUART0_CTS__DUART_RX */
-						0x3032 /* MX28_PAD_AUART0_RTS__DUART_TX */
+						MX28_PAD_AUART0_CTS__DUART_RX
+						MX28_PAD_AUART0_RTS__DUART_TX
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -229,10 +230,10 @@
 				duart_4pins_a: duart-4pins@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x3022 /* MX28_PAD_AUART0_CTS__DUART_RX */
-						0x3032 /* MX28_PAD_AUART0_RTS__DUART_TX */
-						0x3002 /* MX28_PAD_AUART0_RX__DUART_CTS */
-						0x3012 /* MX28_PAD_AUART0_TX__DUART_RTS */
+						MX28_PAD_AUART0_CTS__DUART_RX
+						MX28_PAD_AUART0_RTS__DUART_TX
+						MX28_PAD_AUART0_RX__DUART_CTS
+						MX28_PAD_AUART0_TX__DUART_RTS
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -242,21 +243,21 @@
 				gpmi_pins_a: gpmi-nand@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x0000 /* MX28_PAD_GPMI_D00__GPMI_D0 */
-						0x0010 /* MX28_PAD_GPMI_D01__GPMI_D1 */
-						0x0020 /* MX28_PAD_GPMI_D02__GPMI_D2 */
-						0x0030 /* MX28_PAD_GPMI_D03__GPMI_D3 */
-						0x0040 /* MX28_PAD_GPMI_D04__GPMI_D4 */
-						0x0050 /* MX28_PAD_GPMI_D05__GPMI_D5 */
-						0x0060 /* MX28_PAD_GPMI_D06__GPMI_D6 */
-						0x0070 /* MX28_PAD_GPMI_D07__GPMI_D7 */
-						0x0100 /* MX28_PAD_GPMI_CE0N__GPMI_CE0N */
-						0x0140 /* MX28_PAD_GPMI_RDY0__GPMI_READY0 */
-						0x0180 /* MX28_PAD_GPMI_RDN__GPMI_RDN */
-						0x0190 /* MX28_PAD_GPMI_WRN__GPMI_WRN */
-						0x01a0 /* MX28_PAD_GPMI_ALE__GPMI_ALE */
-						0x01b0 /* MX28_PAD_GPMI_CLE__GPMI_CLE */
-						0x01c0 /* MX28_PAD_GPMI_RESETN__GPMI_RESETN */
+						MX28_PAD_GPMI_D00__GPMI_D0
+						MX28_PAD_GPMI_D01__GPMI_D1
+						MX28_PAD_GPMI_D02__GPMI_D2
+						MX28_PAD_GPMI_D03__GPMI_D3
+						MX28_PAD_GPMI_D04__GPMI_D4
+						MX28_PAD_GPMI_D05__GPMI_D5
+						MX28_PAD_GPMI_D06__GPMI_D6
+						MX28_PAD_GPMI_D07__GPMI_D7
+						MX28_PAD_GPMI_CE0N__GPMI_CE0N
+						MX28_PAD_GPMI_RDY0__GPMI_READY0
+						MX28_PAD_GPMI_RDN__GPMI_RDN
+						MX28_PAD_GPMI_WRN__GPMI_WRN
+						MX28_PAD_GPMI_ALE__GPMI_ALE
+						MX28_PAD_GPMI_CLE__GPMI_CLE
+						MX28_PAD_GPMI_RESETN__GPMI_RESETN
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -265,9 +266,9 @@
 
 				gpmi_status_cfg: gpmi-status-cfg {
 					fsl,pinmux-ids = <
-						0x0180 /* MX28_PAD_GPMI_RDN__GPMI_RDN */
-						0x0190 /* MX28_PAD_GPMI_WRN__GPMI_WRN */
-						0x01c0 /* MX28_PAD_GPMI_RESETN__GPMI_RESETN */
+						MX28_PAD_GPMI_RDN__GPMI_RDN
+						MX28_PAD_GPMI_WRN__GPMI_WRN
+						MX28_PAD_GPMI_RESETN__GPMI_RESETN
 					>;
 					fsl,drive-strength = <2>;
 				};
@@ -275,10 +276,10 @@
 				auart0_pins_a: auart0@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x3000 /* MX28_PAD_AUART0_RX__AUART0_RX */
-						0x3010 /* MX28_PAD_AUART0_TX__AUART0_TX */
-						0x3020 /* MX28_PAD_AUART0_CTS__AUART0_CTS */
-						0x3030 /* MX28_PAD_AUART0_RTS__AUART0_RTS */
+						MX28_PAD_AUART0_RX__AUART0_RX
+						MX28_PAD_AUART0_TX__AUART0_TX
+						MX28_PAD_AUART0_CTS__AUART0_CTS
+						MX28_PAD_AUART0_RTS__AUART0_RTS
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -288,8 +289,8 @@
 				auart0_2pins_a: auart0-2pins@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x3000 /* MX28_PAD_AUART0_RX__AUART0_RX */
-						0x3010 /* MX28_PAD_AUART0_TX__AUART0_TX */
+						MX28_PAD_AUART0_RX__AUART0_RX
+						MX28_PAD_AUART0_TX__AUART0_TX
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -299,10 +300,10 @@
 				auart1_pins_a: auart1@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x3040 /* MX28_PAD_AUART1_RX__AUART1_RX */
-						0x3050 /* MX28_PAD_AUART1_TX__AUART1_TX */
-						0x3060 /* MX28_PAD_AUART1_CTS__AUART1_CTS */
-						0x3070 /* MX28_PAD_AUART1_RTS__AUART1_RTS */
+						MX28_PAD_AUART1_RX__AUART1_RX
+						MX28_PAD_AUART1_TX__AUART1_TX
+						MX28_PAD_AUART1_CTS__AUART1_CTS
+						MX28_PAD_AUART1_RTS__AUART1_RTS
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -312,8 +313,8 @@
 				auart1_2pins_a: auart1-2pins@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x3040 /* MX28_PAD_AUART1_RX__AUART1_RX */
-						0x3050 /* MX28_PAD_AUART1_TX__AUART1_TX */
+						MX28_PAD_AUART1_RX__AUART1_RX
+						MX28_PAD_AUART1_TX__AUART1_TX
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -323,8 +324,8 @@
 				auart2_2pins_a: auart2-2pins@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x2101 /* MX28_PAD_SSP2_SCK__AUART2_RX */
-						0x2111 /* MX28_PAD_SSP2_MOSI__AUART2_TX */
+						MX28_PAD_SSP2_SCK__AUART2_RX
+						MX28_PAD_SSP2_MOSI__AUART2_TX
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -334,8 +335,8 @@
 				auart2_2pins_b: auart2-2pins@1 {
 					reg = <1>;
 					fsl,pinmux-ids = <
-						0x3080 /* MX28_PAD_AUART2_RX__AUART2_RX */
-						0x3090 /* MX28_PAD_AUART2_TX__AUART2_TX */
+						MX28_PAD_AUART2_RX__AUART2_RX
+						MX28_PAD_AUART2_TX__AUART2_TX
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -345,10 +346,10 @@
 				auart3_pins_a: auart3@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x30c0 /* MX28_PAD_AUART3_RX__AUART3_RX */
-						0x30d0 /* MX28_PAD_AUART3_TX__AUART3_TX */
-						0x30e0 /* MX28_PAD_AUART3_CTS__AUART3_CTS */
-						0x30f0 /* MX28_PAD_AUART3_RTS__AUART3_RTS */
+						MX28_PAD_AUART3_RX__AUART3_RX
+						MX28_PAD_AUART3_TX__AUART3_TX
+						MX28_PAD_AUART3_CTS__AUART3_CTS
+						MX28_PAD_AUART3_RTS__AUART3_RTS
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -358,8 +359,8 @@
 				auart3_2pins_a: auart3-2pins@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x2121 /* MX28_PAD_SSP2_MISO__AUART3_RX */
-						0x2131 /* MX28_PAD_SSP2_SS0__AUART3_TX */
+						MX28_PAD_SSP2_MISO__AUART3_RX
+						MX28_PAD_SSP2_SS0__AUART3_TX
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -369,8 +370,8 @@
 				auart3_2pins_b: auart3-2pins@1 {
 					reg = <1>;
 					fsl,pinmux-ids = <
-						0x30c0 /* MX28_PAD_AUART3_RX__AUART3_RX */
-						0x30d0 /* MX28_PAD_AUART3_TX__AUART3_TX */
+						MX28_PAD_AUART3_RX__AUART3_RX
+						MX28_PAD_AUART3_TX__AUART3_TX
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -380,8 +381,8 @@
 				auart4_2pins_a: auart4@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x2181 /* MX28_PAD_SSP3_SCK__AUART4_TX */
-						0x2191 /* MX28_PAD_SSP3_MOSI__AUART4_RX */
+						MX28_PAD_SSP3_SCK__AUART4_TX
+						MX28_PAD_SSP3_MOSI__AUART4_RX
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -391,15 +392,15 @@
 				mac0_pins_a: mac0@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x4000 /* MX28_PAD_ENET0_MDC__ENET0_MDC */
-						0x4010 /* MX28_PAD_ENET0_MDIO__ENET0_MDIO */
-						0x4020 /* MX28_PAD_ENET0_RX_EN__ENET0_RX_EN */
-						0x4030 /* MX28_PAD_ENET0_RXD0__ENET0_RXD0 */
-						0x4040 /* MX28_PAD_ENET0_RXD1__ENET0_RXD1 */
-						0x4060 /* MX28_PAD_ENET0_TX_EN__ENET0_TX_EN */
-						0x4070 /* MX28_PAD_ENET0_TXD0__ENET0_TXD0 */
-						0x4080 /* MX28_PAD_ENET0_TXD1__ENET0_TXD1 */
-						0x4100 /* MX28_PAD_ENET_CLK__CLKCTRL_ENET */
+						MX28_PAD_ENET0_MDC__ENET0_MDC
+						MX28_PAD_ENET0_MDIO__ENET0_MDIO
+						MX28_PAD_ENET0_RX_EN__ENET0_RX_EN
+						MX28_PAD_ENET0_RXD0__ENET0_RXD0
+						MX28_PAD_ENET0_RXD1__ENET0_RXD1
+						MX28_PAD_ENET0_TX_EN__ENET0_TX_EN
+						MX28_PAD_ENET0_TXD0__ENET0_TXD0
+						MX28_PAD_ENET0_TXD1__ENET0_TXD1
+						MX28_PAD_ENET_CLK__CLKCTRL_ENET
 					>;
 					fsl,drive-strength = <1>;
 					fsl,voltage = <1>;
@@ -409,12 +410,12 @@
 				mac1_pins_a: mac1@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x40f1 /* MX28_PAD_ENET0_CRS__ENET1_RX_EN */
-						0x4091 /* MX28_PAD_ENET0_RXD2__ENET1_RXD0 */
-						0x40a1 /* MX28_PAD_ENET0_RXD3__ENET1_RXD1 */
-						0x40e1 /* MX28_PAD_ENET0_COL__ENET1_TX_EN */
-						0x40b1 /* MX28_PAD_ENET0_TXD2__ENET1_TXD0 */
-						0x40c1 /* MX28_PAD_ENET0_TXD3__ENET1_TXD1 */
+						MX28_PAD_ENET0_CRS__ENET1_RX_EN
+						MX28_PAD_ENET0_RXD2__ENET1_RXD0
+						MX28_PAD_ENET0_RXD3__ENET1_RXD1
+						MX28_PAD_ENET0_COL__ENET1_TX_EN
+						MX28_PAD_ENET0_TXD2__ENET1_TXD0
+						MX28_PAD_ENET0_TXD3__ENET1_TXD1
 					>;
 					fsl,drive-strength = <1>;
 					fsl,voltage = <1>;
@@ -424,17 +425,17 @@
 				mmc0_8bit_pins_a: mmc0-8bit@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x2000 /* MX28_PAD_SSP0_DATA0__SSP0_D0 */
-						0x2010 /* MX28_PAD_SSP0_DATA1__SSP0_D1 */
-						0x2020 /* MX28_PAD_SSP0_DATA2__SSP0_D2 */
-						0x2030 /* MX28_PAD_SSP0_DATA3__SSP0_D3 */
-						0x2040 /* MX28_PAD_SSP0_DATA4__SSP0_D4 */
-						0x2050 /* MX28_PAD_SSP0_DATA5__SSP0_D5 */
-						0x2060 /* MX28_PAD_SSP0_DATA6__SSP0_D6 */
-						0x2070 /* MX28_PAD_SSP0_DATA7__SSP0_D7 */
-						0x2080 /* MX28_PAD_SSP0_CMD__SSP0_CMD */
-						0x2090 /* MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT */
-						0x20a0 /* MX28_PAD_SSP0_SCK__SSP0_SCK */
+						MX28_PAD_SSP0_DATA0__SSP0_D0
+						MX28_PAD_SSP0_DATA1__SSP0_D1
+						MX28_PAD_SSP0_DATA2__SSP0_D2
+						MX28_PAD_SSP0_DATA3__SSP0_D3
+						MX28_PAD_SSP0_DATA4__SSP0_D4
+						MX28_PAD_SSP0_DATA5__SSP0_D5
+						MX28_PAD_SSP0_DATA6__SSP0_D6
+						MX28_PAD_SSP0_DATA7__SSP0_D7
+						MX28_PAD_SSP0_CMD__SSP0_CMD
+						MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT
+						MX28_PAD_SSP0_SCK__SSP0_SCK
 					>;
 					fsl,drive-strength = <1>;
 					fsl,voltage = <1>;
@@ -444,13 +445,13 @@
 				mmc0_4bit_pins_a: mmc0-4bit@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x2000 /* MX28_PAD_SSP0_DATA0__SSP0_D0 */
-						0x2010 /* MX28_PAD_SSP0_DATA1__SSP0_D1 */
-						0x2020 /* MX28_PAD_SSP0_DATA2__SSP0_D2 */
-						0x2030 /* MX28_PAD_SSP0_DATA3__SSP0_D3 */
-						0x2080 /* MX28_PAD_SSP0_CMD__SSP0_CMD */
-						0x2090 /* MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT */
-						0x20a0 /* MX28_PAD_SSP0_SCK__SSP0_SCK */
+						MX28_PAD_SSP0_DATA0__SSP0_D0
+						MX28_PAD_SSP0_DATA1__SSP0_D1
+						MX28_PAD_SSP0_DATA2__SSP0_D2
+						MX28_PAD_SSP0_DATA3__SSP0_D3
+						MX28_PAD_SSP0_CMD__SSP0_CMD
+						MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT
+						MX28_PAD_SSP0_SCK__SSP0_SCK
 					>;
 					fsl,drive-strength = <1>;
 					fsl,voltage = <1>;
@@ -459,14 +460,14 @@
 
 				mmc0_cd_cfg: mmc0-cd-cfg {
 					fsl,pinmux-ids = <
-						0x2090 /* MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT */
+						MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT
 					>;
 					fsl,pull-up = <0>;
 				};
 
 				mmc0_sck_cfg: mmc0-sck-cfg {
 					fsl,pinmux-ids = <
-						0x20a0 /* MX28_PAD_SSP0_SCK__SSP0_SCK */
+						MX28_PAD_SSP0_SCK__SSP0_SCK
 					>;
 					fsl,drive-strength = <2>;
 					fsl,pull-up = <0>;
@@ -475,8 +476,8 @@
 				i2c0_pins_a: i2c0@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x3180 /* MX28_PAD_I2C0_SCL__I2C0_SCL */
-						0x3190 /* MX28_PAD_I2C0_SDA__I2C0_SDA */
+						MX28_PAD_I2C0_SCL__I2C0_SCL
+						MX28_PAD_I2C0_SDA__I2C0_SDA
 					>;
 					fsl,drive-strength = <1>;
 					fsl,voltage = <1>;
@@ -486,8 +487,8 @@
 				i2c0_pins_b: i2c0@1 {
 					reg = <1>;
 					fsl,pinmux-ids = <
-						0x3001 /* MX28_PAD_AUART0_RX__I2C0_SCL */
-						0x3011 /* MX28_PAD_AUART0_TX__I2C0_SDA */
+						MX28_PAD_AUART0_RX__I2C0_SCL
+						MX28_PAD_AUART0_TX__I2C0_SDA
 					>;
 					fsl,drive-strength = <1>;
 					fsl,voltage = <1>;
@@ -497,8 +498,8 @@
 				i2c1_pins_a: i2c1@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x3101 /* MX28_PAD_PWM0__I2C1_SCL */
-						0x3111 /* MX28_PAD_PWM1__I2C1_SDA */
+						MX28_PAD_PWM0__I2C1_SCL
+						MX28_PAD_PWM1__I2C1_SDA
 					>;
 					fsl,drive-strength = <1>;
 					fsl,voltage = <1>;
@@ -508,10 +509,10 @@
 				saif0_pins_a: saif0@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x3140 /* MX28_PAD_SAIF0_MCLK__SAIF0_MCLK */
-						0x3150 /* MX28_PAD_SAIF0_LRCLK__SAIF0_LRCLK */
-						0x3160 /* MX28_PAD_SAIF0_BITCLK__SAIF0_BITCLK */
-						0x3170 /* MX28_PAD_SAIF0_SDATA0__SAIF0_SDATA0 */
+						MX28_PAD_SAIF0_MCLK__SAIF0_MCLK
+						MX28_PAD_SAIF0_LRCLK__SAIF0_LRCLK
+						MX28_PAD_SAIF0_BITCLK__SAIF0_BITCLK
+						MX28_PAD_SAIF0_SDATA0__SAIF0_SDATA0
 					>;
 					fsl,drive-strength = <2>;
 					fsl,voltage = <1>;
@@ -521,9 +522,9 @@
 				saif0_pins_b: saif0@1 {
 					reg = <1>;
 					fsl,pinmux-ids = <
-						0x3150 /* MX28_PAD_SAIF0_LRCLK__SAIF0_LRCLK */
-						0x3160 /* MX28_PAD_SAIF0_BITCLK__SAIF0_BITCLK */
-						0x3170 /* MX28_PAD_SAIF0_SDATA0__SAIF0_SDATA0 */
+						MX28_PAD_SAIF0_LRCLK__SAIF0_LRCLK
+						MX28_PAD_SAIF0_BITCLK__SAIF0_BITCLK
+						MX28_PAD_SAIF0_SDATA0__SAIF0_SDATA0
 					>;
 					fsl,drive-strength = <2>;
 					fsl,voltage = <1>;
@@ -533,7 +534,7 @@
 				saif1_pins_a: saif1@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x31a0 /* MX28_PAD_SAIF1_SDATA0__SAIF1_SDATA0 */
+						MX28_PAD_SAIF1_SDATA0__SAIF1_SDATA0
 					>;
 					fsl,drive-strength = <2>;
 					fsl,voltage = <1>;
@@ -543,7 +544,7 @@
 				pwm0_pins_a: pwm0@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x3100 /* MX28_PAD_PWM0__PWM_0 */
+						MX28_PAD_PWM0__PWM_0
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -553,7 +554,7 @@
 				pwm2_pins_a: pwm2@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x3120 /* MX28_PAD_PWM2__PWM_2 */
+						MX28_PAD_PWM2__PWM_2
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -563,7 +564,7 @@
 				pwm3_pins_a: pwm3@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x31c0 /* MX28_PAD_PWM3__PWM_3 */
+						MX28_PAD_PWM3__PWM_3
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -573,7 +574,7 @@
 				pwm3_pins_b: pwm3@1 {
 					reg = <1>;
 					fsl,pinmux-ids = <
-						0x3141 /* MX28_PAD_SAIF0_MCLK__PWM3 */
+						MX28_PAD_SAIF0_MCLK__PWM_3
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -583,7 +584,7 @@
 				pwm4_pins_a: pwm4@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x31d0 /* MX28_PAD_PWM4__PWM_4 */
+						MX28_PAD_PWM4__PWM_4
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -593,30 +594,30 @@
 				lcdif_24bit_pins_a: lcdif-24bit@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x1000 /* MX28_PAD_LCD_D00__LCD_D0 */
-						0x1010 /* MX28_PAD_LCD_D01__LCD_D1 */
-						0x1020 /* MX28_PAD_LCD_D02__LCD_D2 */
-						0x1030 /* MX28_PAD_LCD_D03__LCD_D3 */
-						0x1040 /* MX28_PAD_LCD_D04__LCD_D4 */
-						0x1050 /* MX28_PAD_LCD_D05__LCD_D5 */
-						0x1060 /* MX28_PAD_LCD_D06__LCD_D6 */
-						0x1070 /* MX28_PAD_LCD_D07__LCD_D7 */
-						0x1080 /* MX28_PAD_LCD_D08__LCD_D8 */
-						0x1090 /* MX28_PAD_LCD_D09__LCD_D9 */
-						0x10a0 /* MX28_PAD_LCD_D10__LCD_D10 */
-						0x10b0 /* MX28_PAD_LCD_D11__LCD_D11 */
-						0x10c0 /* MX28_PAD_LCD_D12__LCD_D12 */
-						0x10d0 /* MX28_PAD_LCD_D13__LCD_D13 */
-						0x10e0 /* MX28_PAD_LCD_D14__LCD_D14 */
-						0x10f0 /* MX28_PAD_LCD_D15__LCD_D15 */
-						0x1100 /* MX28_PAD_LCD_D16__LCD_D16 */
-						0x1110 /* MX28_PAD_LCD_D17__LCD_D17 */
-						0x1120 /* MX28_PAD_LCD_D18__LCD_D18 */
-						0x1130 /* MX28_PAD_LCD_D19__LCD_D19 */
-						0x1140 /* MX28_PAD_LCD_D20__LCD_D20 */
-						0x1150 /* MX28_PAD_LCD_D21__LCD_D21 */
-						0x1160 /* MX28_PAD_LCD_D22__LCD_D22 */
-						0x1170 /* MX28_PAD_LCD_D23__LCD_D23 */
+						MX28_PAD_LCD_D00__LCD_D0
+						MX28_PAD_LCD_D01__LCD_D1
+						MX28_PAD_LCD_D02__LCD_D2
+						MX28_PAD_LCD_D03__LCD_D3
+						MX28_PAD_LCD_D04__LCD_D4
+						MX28_PAD_LCD_D05__LCD_D5
+						MX28_PAD_LCD_D06__LCD_D6
+						MX28_PAD_LCD_D07__LCD_D7
+						MX28_PAD_LCD_D08__LCD_D8
+						MX28_PAD_LCD_D09__LCD_D9
+						MX28_PAD_LCD_D10__LCD_D10
+						MX28_PAD_LCD_D11__LCD_D11
+						MX28_PAD_LCD_D12__LCD_D12
+						MX28_PAD_LCD_D13__LCD_D13
+						MX28_PAD_LCD_D14__LCD_D14
+						MX28_PAD_LCD_D15__LCD_D15
+						MX28_PAD_LCD_D16__LCD_D16
+						MX28_PAD_LCD_D17__LCD_D17
+						MX28_PAD_LCD_D18__LCD_D18
+						MX28_PAD_LCD_D19__LCD_D19
+						MX28_PAD_LCD_D20__LCD_D20
+						MX28_PAD_LCD_D21__LCD_D21
+						MX28_PAD_LCD_D22__LCD_D22
+						MX28_PAD_LCD_D23__LCD_D23
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -626,22 +627,22 @@
 				lcdif_16bit_pins_a: lcdif-16bit@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x1000 /* MX28_PAD_LCD_D00__LCD_D0 */
-						0x1010 /* MX28_PAD_LCD_D01__LCD_D1 */
-						0x1020 /* MX28_PAD_LCD_D02__LCD_D2 */
-						0x1030 /* MX28_PAD_LCD_D03__LCD_D3 */
-						0x1040 /* MX28_PAD_LCD_D04__LCD_D4 */
-						0x1050 /* MX28_PAD_LCD_D05__LCD_D5 */
-						0x1060 /* MX28_PAD_LCD_D06__LCD_D6 */
-						0x1070 /* MX28_PAD_LCD_D07__LCD_D7 */
-						0x1080 /* MX28_PAD_LCD_D08__LCD_D8 */
-						0x1090 /* MX28_PAD_LCD_D09__LCD_D9 */
-						0x10a0 /* MX28_PAD_LCD_D10__LCD_D10 */
-						0x10b0 /* MX28_PAD_LCD_D11__LCD_D11 */
-						0x10c0 /* MX28_PAD_LCD_D12__LCD_D12 */
-						0x10d0 /* MX28_PAD_LCD_D13__LCD_D13 */
-						0x10e0 /* MX28_PAD_LCD_D14__LCD_D14 */
-						0x10f0 /* MX28_PAD_LCD_D15__LCD_D15 */
+						MX28_PAD_LCD_D00__LCD_D0
+						MX28_PAD_LCD_D01__LCD_D1
+						MX28_PAD_LCD_D02__LCD_D2
+						MX28_PAD_LCD_D03__LCD_D3
+						MX28_PAD_LCD_D04__LCD_D4
+						MX28_PAD_LCD_D05__LCD_D5
+						MX28_PAD_LCD_D06__LCD_D6
+						MX28_PAD_LCD_D07__LCD_D7
+						MX28_PAD_LCD_D08__LCD_D8
+						MX28_PAD_LCD_D09__LCD_D9
+						MX28_PAD_LCD_D10__LCD_D10
+						MX28_PAD_LCD_D11__LCD_D11
+						MX28_PAD_LCD_D12__LCD_D12
+						MX28_PAD_LCD_D13__LCD_D13
+						MX28_PAD_LCD_D14__LCD_D14
+						MX28_PAD_LCD_D15__LCD_D15
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -651,10 +652,10 @@
 				lcdif_sync_pins_a: lcdif-sync@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x11a1 /* MX28_PAD_LCD_RS__LCD_DOTCLK */
-						0x11b1 /* MX28_PAD_LCD_CS__LCD_ENABLE */
-						0x1181 /* MX28_PAD_LCD_RD_E__LCD_VSYNC */
-						0x1191 /* MX28_PAD_LCD_WR_RWN__LCD_HSYNC */
+						MX28_PAD_LCD_RS__LCD_DOTCLK
+						MX28_PAD_LCD_CS__LCD_ENABLE
+						MX28_PAD_LCD_RD_E__LCD_VSYNC
+						MX28_PAD_LCD_WR_RWN__LCD_HSYNC
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -664,8 +665,8 @@
 				can0_pins_a: can0@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x0161 /* MX28_PAD_GPMI_RDY2__CAN0_TX */
-						0x0171 /* MX28_PAD_GPMI_RDY3__CAN0_RX */
+						MX28_PAD_GPMI_RDY2__CAN0_TX
+						MX28_PAD_GPMI_RDY3__CAN0_RX
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -675,8 +676,8 @@
 				can1_pins_a: can1@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x0121 /* MX28_PAD_GPMI_CE2N__CAN1_TX */
-						0x0131 /* MX28_PAD_GPMI_CE3N__CAN1_RX */
+						MX28_PAD_GPMI_CE2N__CAN1_TX
+						MX28_PAD_GPMI_CE3N__CAN1_RX
 					>;
 					fsl,drive-strength = <0>;
 					fsl,voltage = <1>;
@@ -686,10 +687,10 @@
 				spi2_pins_a: spi2@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x2100 /* MX28_PAD_SSP2_SCK__SSP2_SCK */
-						0x2110 /* MX28_PAD_SSP2_MOSI__SSP2_CMD */
-						0x2120 /* MX28_PAD_SSP2_MISO__SSP2_D0 */
-						0x2130 /* MX28_PAD_SSP2_SS0__SSP2_D3 */
+						MX28_PAD_SSP2_SCK__SSP2_SCK
+						MX28_PAD_SSP2_MOSI__SSP2_CMD
+						MX28_PAD_SSP2_MISO__SSP2_D0
+						MX28_PAD_SSP2_SS0__SSP2_D3
 					>;
 					fsl,drive-strength = <1>;
 					fsl,voltage = <1>;
@@ -699,12 +700,12 @@
 				spi3_pins_a: spi3@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x3082 /* MX28_PAD_AUART2_RX__SSP3_D4 */
-						0x3092 /* MX28_PAD_AUART2_TX__SSP3_D5 */
-						0x2180 /* MX28_PAD_SSP3_SCK__SSP3_SCK */
-						0x2190 /* MX28_PAD_SSP3_MOSI__SSP3_CMD */
-						0x21A0 /* MX28_PAD_SSP3_MISO__SSP3_D0 */
-						0x21B0 /* MX28_PAD_SSP3_SS0__SSP3_D3 */
+						MX28_PAD_AUART2_RX__SSP3_D4
+						MX28_PAD_AUART2_TX__SSP3_D5
+						MX28_PAD_SSP3_SCK__SSP3_SCK
+						MX28_PAD_SSP3_MOSI__SSP3_CMD
+						MX28_PAD_SSP3_MISO__SSP3_D0
+						MX28_PAD_SSP3_SS0__SSP3_D3
 					>;
 					fsl,drive-strength = <1>;
 					fsl,voltage = <1>;
@@ -714,7 +715,7 @@
 				usbphy0_pins_a: usbphy0@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x2152 /* MX28_PAD_SSP2_SS2__USB0_OVERCURRENT */
+						MX28_PAD_SSP2_SS2__USB0_OVERCURRENT
 					>;
 					fsl,drive-strength = <2>;
 					fsl,voltage = <1>;
@@ -724,7 +725,7 @@
 				usbphy0_pins_b: usbphy0@1 {
 					reg = <1>;
 					fsl,pinmux-ids = <
-						0x3061 /* MX28_PAD_AUART1_CTS__USB0_OVERCURRENT */
+						MX28_PAD_AUART1_CTS__USB0_OVERCURRENT
 					>;
 					fsl,drive-strength = <2>;
 					fsl,voltage = <1>;
@@ -734,7 +735,7 @@
 				usbphy1_pins_a: usbphy1@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x2142 /* MX28_PAD_SSP2_SS1__USB1_OVERCURRENT */
+						MX28_PAD_SSP2_SS1__USB1_OVERCURRENT
 					>;
 					fsl,drive-strength = <2>;
 					fsl,voltage = <1>;
-- 
cgit 


From 4191c3401179a3c068fccd5ff84401a7e3d596e3 Mon Sep 17 00:00:00 2001
From: Lothar Waßmann <LW@KARO-electronics.de>
Date: Sun, 22 Sep 2013 14:02:59 +0800
Subject: ARM: dts: mxs: modify mx23/mx28 dts files to use padconfig defines
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Convert mx23/mx28 dts files to use the padconfig defintions from
mxs-pinfunc.h.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx23-evk.dts           |   6 +-
 arch/arm/boot/dts/imx23-olinuxino.dts     |  12 +-
 arch/arm/boot/dts/imx23-stmp378x_devb.dts |   6 +-
 arch/arm/boot/dts/imx23.dtsi              |  58 +++----
 arch/arm/boot/dts/imx28-apf28dev.dts      |  12 +-
 arch/arm/boot/dts/imx28-apx4devkit.dts    |  22 +--
 arch/arm/boot/dts/imx28-cfa10036.dts      |  18 +--
 arch/arm/boot/dts/imx28-cfa10037.dts      |  12 +-
 arch/arm/boot/dts/imx28-cfa10049.dts      |  72 ++++-----
 arch/arm/boot/dts/imx28-cfa10055.dts      |  24 +--
 arch/arm/boot/dts/imx28-cfa10056.dts      |  18 +--
 arch/arm/boot/dts/imx28-cfa10057.dts      |  18 +--
 arch/arm/boot/dts/imx28-cfa10058.dts      |  12 +-
 arch/arm/boot/dts/imx28-evk.dts           |  24 +--
 arch/arm/boot/dts/imx28-m28evk.dts        |  12 +-
 arch/arm/boot/dts/imx28-sps1.dts          |   6 +-
 arch/arm/boot/dts/imx28.dtsi              | 242 +++++++++++++++---------------
 17 files changed, 287 insertions(+), 287 deletions(-)

diff --git a/arch/arm/boot/dts/imx23-evk.dts b/arch/arm/boot/dts/imx23-evk.dts
index fdd8b27adb17..1f026adefd45 100644
--- a/arch/arm/boot/dts/imx23-evk.dts
+++ b/arch/arm/boot/dts/imx23-evk.dts
@@ -50,9 +50,9 @@
 						MX23_PAD_PWM4__GPIO_1_30
 						MX23_PAD_SSP1_DETECT__SSP1_DETECT
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 			};
 
diff --git a/arch/arm/boot/dts/imx23-olinuxino.dts b/arch/arm/boot/dts/imx23-olinuxino.dts
index f575434d22ae..526bfdbd87f9 100644
--- a/arch/arm/boot/dts/imx23-olinuxino.dts
+++ b/arch/arm/boot/dts/imx23-olinuxino.dts
@@ -42,9 +42,9 @@
 					fsl,pinmux-ids = <
 						MX23_PAD_GPMI_ALE__GPIO_0_17
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				led_pin_gpio2_1: led_gpio2_1@0 {
@@ -52,9 +52,9 @@
 					fsl,pinmux-ids = <
 						MX23_PAD_SSP1_DETECT__GPIO_2_1
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 			};
 
diff --git a/arch/arm/boot/dts/imx23-stmp378x_devb.dts b/arch/arm/boot/dts/imx23-stmp378x_devb.dts
index 2c8a9b0b9f43..cb64e2b191ea 100644
--- a/arch/arm/boot/dts/imx23-stmp378x_devb.dts
+++ b/arch/arm/boot/dts/imx23-stmp378x_devb.dts
@@ -42,9 +42,9 @@
 						MX23_PAD_PWM3__GPIO_1_29
 						MX23_PAD_PWM4__GPIO_1_30
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 			};
 		};
diff --git a/arch/arm/boot/dts/imx23.dtsi b/arch/arm/boot/dts/imx23.dtsi
index ff96e592ec3c..87faa6e8b6e7 100644
--- a/arch/arm/boot/dts/imx23.dtsi
+++ b/arch/arm/boot/dts/imx23.dtsi
@@ -141,9 +141,9 @@
 						MX23_PAD_PWM0__DUART_RX
 						MX23_PAD_PWM1__DUART_TX
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				auart0_pins_a: auart0@0 {
@@ -154,9 +154,9 @@
 						MX23_PAD_AUART1_CTS__AUART1_CTS
 						MX23_PAD_AUART1_RTS__AUART1_RTS
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				auart0_2pins_a: auart0-2pins@0 {
@@ -165,9 +165,9 @@
 						MX23_PAD_I2C_SCL__AUART1_TX
 						MX23_PAD_I2C_SDA__AUART1_RX
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				gpmi_pins_a: gpmi-nand@0 {
@@ -191,9 +191,9 @@
 						MX23_PAD_GPMI_CE1N__GPMI_CE1N
 						MX23_PAD_GPMI_CE0N__GPMI_CE0N
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				gpmi_pins_fixup: gpmi-pins-fixup {
@@ -202,7 +202,7 @@
 						MX23_PAD_GPMI_WRN__GPMI_WRN
 						MX23_PAD_GPMI_RDN__GPMI_RDN
 					>;
-					fsl,drive-strength = <2>;
+					fsl,drive-strength = <MXS_DRIVE_12mA>;
 				};
 
 				mmc0_4bit_pins_a: mmc0-4bit@0 {
@@ -215,9 +215,9 @@
 						MX23_PAD_SSP1_CMD__SSP1_CMD
 						MX23_PAD_SSP1_SCK__SSP1_SCK
 					>;
-					fsl,drive-strength = <1>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_8mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				mmc0_8bit_pins_a: mmc0-8bit@0 {
@@ -235,9 +235,9 @@
 						MX23_PAD_SSP1_DETECT__SSP1_DETECT
 						MX23_PAD_SSP1_SCK__SSP1_SCK
 					>;
-					fsl,drive-strength = <1>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_8mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				mmc0_pins_fixup: mmc0-pins-fixup {
@@ -245,7 +245,7 @@
 						MX23_PAD_SSP1_DETECT__SSP1_DETECT
 						MX23_PAD_SSP1_SCK__SSP1_SCK
 					>;
-					fsl,pull-up = <0>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				pwm2_pins_a: pwm2@0 {
@@ -253,9 +253,9 @@
 					fsl,pinmux-ids = <
 						MX23_PAD_PWM2__PWM2
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				lcdif_24bit_pins_a: lcdif-24bit@0 {
@@ -290,9 +290,9 @@
 						MX23_PAD_LCD_HSYNC__LCD_HSYNC
 						MX23_PAD_LCD_VSYNC__LCD_VSYNC
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				spi2_pins_a: spi2@0 {
@@ -303,9 +303,9 @@
 						MX23_PAD_GPMI_D00__SSP2_DATA0
 						MX23_PAD_GPMI_D03__SSP2_DATA3
 					>;
-					fsl,drive-strength = <1>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_8mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 			};
 
diff --git a/arch/arm/boot/dts/imx28-apf28dev.dts b/arch/arm/boot/dts/imx28-apf28dev.dts
index 7d923cc56a93..e2efd8d89c4f 100644
--- a/arch/arm/boot/dts/imx28-apf28dev.dts
+++ b/arch/arm/boot/dts/imx28-apf28dev.dts
@@ -49,9 +49,9 @@
 						MX28_PAD_LCD_D21__GPIO_1_21
 						MX28_PAD_LCD_D22__GPIO_1_22
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				lcdif_pins_apf28dev: lcdif-apf28dev@0 {
@@ -62,9 +62,9 @@
 						MX28_PAD_LCD_RS__LCD_DOTCLK
 						MX28_PAD_LCD_CS__LCD_ENABLE
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 			};
 
diff --git a/arch/arm/boot/dts/imx28-apx4devkit.dts b/arch/arm/boot/dts/imx28-apx4devkit.dts
index cb19dc1e7743..6f254ca816cb 100644
--- a/arch/arm/boot/dts/imx28-apx4devkit.dts
+++ b/arch/arm/boot/dts/imx28-apx4devkit.dts
@@ -48,9 +48,9 @@
 						MX28_PAD_LCD_RESET__GPIO_3_30
 						MX28_PAD_JTAG_RTCK__GPIO_4_20
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				lcdif_pins_apx4: lcdif-apx4@0 {
@@ -61,9 +61,9 @@
 						MX28_PAD_LCD_RS__LCD_DOTCLK
 						MX28_PAD_LCD_CS__LCD_ENABLE
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				mmc2_4bit_pins_apx4: mmc2-4bit-apx4@0 {
@@ -76,17 +76,17 @@
 						MX28_PAD_SSP2_SS1__SSP2_D1
 						MX28_PAD_SSP2_SS2__SSP2_D2
 					>;
-					fsl,drive-strength = <1>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_8mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				mmc2_sck_cfg_apx4: mmc2-sck-cfg-apx4 {
 					fsl,pinmux-ids = <
 						MX28_PAD_SSP0_DATA7__SSP2_SCK
 					>;
-					fsl,drive-strength = <2>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_12mA>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 			};
 
diff --git a/arch/arm/boot/dts/imx28-cfa10036.dts b/arch/arm/boot/dts/imx28-cfa10036.dts
index 2474207951fb..cabb6171a19d 100644
--- a/arch/arm/boot/dts/imx28-cfa10036.dts
+++ b/arch/arm/boot/dts/imx28-cfa10036.dts
@@ -28,9 +28,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_SSP0_DATA7__GPIO_2_7
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				led_pins_cfa10036: leds-10036@0 {
@@ -38,9 +38,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_AUART1_RX__GPIO_3_4
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				usb0_otg_cfa10036: otg-10036@0 {
@@ -48,9 +48,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_GPMI_RDY0__USB0_ID
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 			};
diff --git a/arch/arm/boot/dts/imx28-cfa10037.dts b/arch/arm/boot/dts/imx28-cfa10037.dts
index 42a9a99880af..f93e9a700e52 100644
--- a/arch/arm/boot/dts/imx28-cfa10037.dts
+++ b/arch/arm/boot/dts/imx28-cfa10037.dts
@@ -27,9 +27,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_GPMI_D07__GPIO_0_7
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				mac0_pins_cfa10037: mac0-10037@0 {
@@ -37,9 +37,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_SSP2_SS2__GPIO_2_21
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 			};
 		};
diff --git a/arch/arm/boot/dts/imx28-cfa10049.dts b/arch/arm/boot/dts/imx28-cfa10049.dts
index 9ee2566bf4cb..7087b4bf6a8f 100644
--- a/arch/arm/boot/dts/imx28-cfa10049.dts
+++ b/arch/arm/boot/dts/imx28-cfa10049.dts
@@ -27,9 +27,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_GPMI_D07__GPIO_0_7
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				i2cmux_pins_cfa10049: i2cmux-10049@0 {
@@ -38,9 +38,9 @@
 						MX28_PAD_LCD_D22__GPIO_1_22
 						MX28_PAD_LCD_D23__GPIO_1_23
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				mac0_pins_cfa10049: mac0-10049@0 {
@@ -48,9 +48,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_SSP2_SS2__GPIO_2_21
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				pca_pins_cfa10049: pca-10049@0 {
@@ -58,9 +58,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_SSP2_SS0__GPIO_2_19
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				rotary_pins_cfa10049: rotary-10049@0 {
@@ -69,9 +69,9 @@
 						MX28_PAD_I2C0_SCL__GPIO_3_24
 						MX28_PAD_I2C0_SDA__GPIO_3_25
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				rotary_btn_pins_cfa10049: rotary-btn-10049@0 {
@@ -79,9 +79,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_SAIF1_SDATA0__GPIO_3_26
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				spi2_pins_cfa10049: spi2-cfa10049@0 {
@@ -92,9 +92,9 @@
 						MX28_PAD_SSP2_MISO__GPIO_2_18
 						MX28_PAD_AUART1_TX__GPIO_3_5
 					>;
-					fsl,drive-strength = <1>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_8mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				spi3_pins_cfa10049: spi3-cfa10049@0 {
@@ -106,9 +106,9 @@
 						MX28_PAD_GPMI_ALE__GPIO_0_26
 						MX28_PAD_GPMI_CLE__GPIO_0_27
 					>;
-					fsl,drive-strength = <1>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_8mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				lcdif_18bit_pins_cfa10049: lcdif-18bit@0 {
@@ -133,9 +133,9 @@
 						MX28_PAD_LCD_D16__LCD_D16
 						MX28_PAD_LCD_D17__LCD_D17
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				lcdif_pins_cfa10049: lcdif-evk@0 {
@@ -146,9 +146,9 @@
 						MX28_PAD_LCD_RS__LCD_DOTCLK
 						MX28_PAD_LCD_CS__LCD_ENABLE
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				lcdif_pins_cfa10049_pullup: lcdif-10049-pullup@0 {
@@ -156,9 +156,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_LCD_RESET__GPIO_3_30
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				w1_gpio_pins: w1-gpio@0 {
@@ -166,9 +166,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_LCD_D21__GPIO_1_21
 					>;
-					fsl,drive-strength = <1>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>; /* 0 will enable the keeper */
+					fsl,drive-strength = <MXS_DRIVE_8mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>; /* 0 will enable the keeper */
 				};
 			};
 
diff --git a/arch/arm/boot/dts/imx28-cfa10055.dts b/arch/arm/boot/dts/imx28-cfa10055.dts
index 8b262a26f50c..c3900e7ba331 100644
--- a/arch/arm/boot/dts/imx28-cfa10055.dts
+++ b/arch/arm/boot/dts/imx28-cfa10055.dts
@@ -31,9 +31,9 @@
 						MX28_PAD_SSP2_MISO__GPIO_2_18
 						MX28_PAD_AUART1_TX__GPIO_3_5
 					>;
-					fsl,drive-strength = <1>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_8mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				lcdif_18bit_pins_cfa10055: lcdif-18bit@0 {
@@ -58,9 +58,9 @@
 						MX28_PAD_LCD_D16__LCD_D16
 						MX28_PAD_LCD_D17__LCD_D17
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				lcdif_pins_cfa10055: lcdif-evk@0 {
@@ -71,9 +71,9 @@
 						MX28_PAD_LCD_RS__LCD_DOTCLK
 						MX28_PAD_LCD_CS__LCD_ENABLE
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				lcdif_pins_cfa10055_pullup: lcdif-10055-pullup@0 {
@@ -81,9 +81,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_LCD_RESET__GPIO_3_30
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 			};
 
diff --git a/arch/arm/boot/dts/imx28-cfa10056.dts b/arch/arm/boot/dts/imx28-cfa10056.dts
index f65199878122..cef959a97219 100644
--- a/arch/arm/boot/dts/imx28-cfa10056.dts
+++ b/arch/arm/boot/dts/imx28-cfa10056.dts
@@ -30,9 +30,9 @@
 						MX28_PAD_SSP2_MISO__GPIO_2_18
 						MX28_PAD_AUART1_TX__GPIO_3_5
 					>;
-					fsl,drive-strength = <1>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_8mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				lcdif_pins_cfa10056: lcdif-10056@0 {
@@ -43,9 +43,9 @@
 						MX28_PAD_LCD_RS__LCD_DOTCLK
 						MX28_PAD_LCD_CS__LCD_ENABLE
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				lcdif_pins_cfa10056_pullup: lcdif-10056-pullup@0 {
@@ -53,9 +53,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_LCD_RESET__GPIO_3_30
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 			};
 
diff --git a/arch/arm/boot/dts/imx28-cfa10057.dts b/arch/arm/boot/dts/imx28-cfa10057.dts
index 76430ca3e53d..3c1312885ae0 100644
--- a/arch/arm/boot/dts/imx28-cfa10057.dts
+++ b/arch/arm/boot/dts/imx28-cfa10057.dts
@@ -28,9 +28,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_GPMI_D07__GPIO_0_7
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				lcdif_18bit_pins_cfa10057: lcdif-18bit@0 {
@@ -55,9 +55,9 @@
 						MX28_PAD_LCD_D16__LCD_D16
 						MX28_PAD_LCD_D17__LCD_D17
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				lcdif_pins_cfa10057: lcdif-evk@0 {
@@ -68,9 +68,9 @@
 						MX28_PAD_LCD_RS__LCD_DOTCLK
 						MX28_PAD_LCD_CS__LCD_ENABLE
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 			};
 
diff --git a/arch/arm/boot/dts/imx28-cfa10058.dts b/arch/arm/boot/dts/imx28-cfa10058.dts
index 502be77d32b8..2469d34df0ae 100644
--- a/arch/arm/boot/dts/imx28-cfa10058.dts
+++ b/arch/arm/boot/dts/imx28-cfa10058.dts
@@ -28,9 +28,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_GPMI_D07__GPIO_0_7
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				lcdif_pins_cfa10058: lcdif-10058@0 {
@@ -41,9 +41,9 @@
 						MX28_PAD_LCD_RS__LCD_DOTCLK
 						MX28_PAD_LCD_CS__LCD_ENABLE
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 			};
 
diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts
index 023eaf775487..1f63845b8ce0 100644
--- a/arch/arm/boot/dts/imx28-evk.dts
+++ b/arch/arm/boot/dts/imx28-evk.dts
@@ -79,9 +79,9 @@
 						MX28_PAD_AUART2_RX__GPIO_3_8
 						MX28_PAD_AUART2_TX__GPIO_3_9
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				led_pin_gpio3_5: led_gpio3_5@0 {
@@ -89,9 +89,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_AUART1_TX__GPIO_3_5
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				gpmi_pins_evk: gpmi-nand-evk@0 {
@@ -100,9 +100,9 @@
 						MX28_PAD_GPMI_CE1N__GPMI_CE1N
 						MX28_PAD_GPMI_RDY1__GPMI_READY1
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				lcdif_pins_evk: lcdif-evk@0 {
@@ -113,9 +113,9 @@
 						MX28_PAD_LCD_RS__LCD_DOTCLK
 						MX28_PAD_LCD_CS__LCD_ENABLE
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 			};
 
diff --git a/arch/arm/boot/dts/imx28-m28evk.dts b/arch/arm/boot/dts/imx28-m28evk.dts
index 9f3271dcc7d9..8e2477fbe1d7 100644
--- a/arch/arm/boot/dts/imx28-m28evk.dts
+++ b/arch/arm/boot/dts/imx28-m28evk.dts
@@ -98,9 +98,9 @@
 						MX28_PAD_AUART3_RX__GPIO_3_12
 						MX28_PAD_AUART3_TX__GPIO_3_13
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				lcdif_pins_m28: lcdif-m28@0 {
@@ -109,9 +109,9 @@
 						MX28_PAD_LCD_DOTCLK__LCD_DOTCLK
 						MX28_PAD_LCD_ENABLE__LCD_ENABLE
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 			};
 
diff --git a/arch/arm/boot/dts/imx28-sps1.dts b/arch/arm/boot/dts/imx28-sps1.dts
index 4613522a1cbe..4870f07bf56a 100644
--- a/arch/arm/boot/dts/imx28-sps1.dts
+++ b/arch/arm/boot/dts/imx28-sps1.dts
@@ -33,9 +33,9 @@
 						MX28_PAD_GPMI_D03__GPIO_0_3
 						MX28_PAD_GPMI_D06__GPIO_0_6
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 			};
diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
index 1f16193f3da9..44151f54a4df 100644
--- a/arch/arm/boot/dts/imx28.dtsi
+++ b/arch/arm/boot/dts/imx28.dtsi
@@ -211,9 +211,9 @@
 						MX28_PAD_PWM0__DUART_RX
 						MX28_PAD_PWM1__DUART_TX
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				duart_pins_b: duart@1 {
@@ -222,9 +222,9 @@
 						MX28_PAD_AUART0_CTS__DUART_RX
 						MX28_PAD_AUART0_RTS__DUART_TX
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				duart_4pins_a: duart-4pins@0 {
@@ -235,9 +235,9 @@
 						MX28_PAD_AUART0_RX__DUART_CTS
 						MX28_PAD_AUART0_TX__DUART_RTS
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				gpmi_pins_a: gpmi-nand@0 {
@@ -259,9 +259,9 @@
 						MX28_PAD_GPMI_CLE__GPMI_CLE
 						MX28_PAD_GPMI_RESETN__GPMI_RESETN
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				gpmi_status_cfg: gpmi-status-cfg {
@@ -270,7 +270,7 @@
 						MX28_PAD_GPMI_WRN__GPMI_WRN
 						MX28_PAD_GPMI_RESETN__GPMI_RESETN
 					>;
-					fsl,drive-strength = <2>;
+					fsl,drive-strength = <MXS_DRIVE_12mA>;
 				};
 
 				auart0_pins_a: auart0@0 {
@@ -281,9 +281,9 @@
 						MX28_PAD_AUART0_CTS__AUART0_CTS
 						MX28_PAD_AUART0_RTS__AUART0_RTS
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				auart0_2pins_a: auart0-2pins@0 {
@@ -292,9 +292,9 @@
 						MX28_PAD_AUART0_RX__AUART0_RX
 						MX28_PAD_AUART0_TX__AUART0_TX
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				auart1_pins_a: auart1@0 {
@@ -305,9 +305,9 @@
 						MX28_PAD_AUART1_CTS__AUART1_CTS
 						MX28_PAD_AUART1_RTS__AUART1_RTS
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				auart1_2pins_a: auart1-2pins@0 {
@@ -316,9 +316,9 @@
 						MX28_PAD_AUART1_RX__AUART1_RX
 						MX28_PAD_AUART1_TX__AUART1_TX
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				auart2_2pins_a: auart2-2pins@0 {
@@ -327,9 +327,9 @@
 						MX28_PAD_SSP2_SCK__AUART2_RX
 						MX28_PAD_SSP2_MOSI__AUART2_TX
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				auart2_2pins_b: auart2-2pins@1 {
@@ -338,9 +338,9 @@
 						MX28_PAD_AUART2_RX__AUART2_RX
 						MX28_PAD_AUART2_TX__AUART2_TX
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				auart3_pins_a: auart3@0 {
@@ -351,9 +351,9 @@
 						MX28_PAD_AUART3_CTS__AUART3_CTS
 						MX28_PAD_AUART3_RTS__AUART3_RTS
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				auart3_2pins_a: auart3-2pins@0 {
@@ -362,9 +362,9 @@
 						MX28_PAD_SSP2_MISO__AUART3_RX
 						MX28_PAD_SSP2_SS0__AUART3_TX
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				auart3_2pins_b: auart3-2pins@1 {
@@ -373,9 +373,9 @@
 						MX28_PAD_AUART3_RX__AUART3_RX
 						MX28_PAD_AUART3_TX__AUART3_TX
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				auart4_2pins_a: auart4@0 {
@@ -384,9 +384,9 @@
 						MX28_PAD_SSP3_SCK__AUART4_TX
 						MX28_PAD_SSP3_MOSI__AUART4_RX
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				mac0_pins_a: mac0@0 {
@@ -402,9 +402,9 @@
 						MX28_PAD_ENET0_TXD1__ENET0_TXD1
 						MX28_PAD_ENET_CLK__CLKCTRL_ENET
 					>;
-					fsl,drive-strength = <1>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_8mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				mac1_pins_a: mac1@0 {
@@ -417,9 +417,9 @@
 						MX28_PAD_ENET0_TXD2__ENET1_TXD0
 						MX28_PAD_ENET0_TXD3__ENET1_TXD1
 					>;
-					fsl,drive-strength = <1>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_8mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				mmc0_8bit_pins_a: mmc0-8bit@0 {
@@ -437,9 +437,9 @@
 						MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT
 						MX28_PAD_SSP0_SCK__SSP0_SCK
 					>;
-					fsl,drive-strength = <1>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_8mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				mmc0_4bit_pins_a: mmc0-4bit@0 {
@@ -453,24 +453,24 @@
 						MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT
 						MX28_PAD_SSP0_SCK__SSP0_SCK
 					>;
-					fsl,drive-strength = <1>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_8mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				mmc0_cd_cfg: mmc0-cd-cfg {
 					fsl,pinmux-ids = <
 						MX28_PAD_SSP0_DETECT__SSP0_CARD_DETECT
 					>;
-					fsl,pull-up = <0>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				mmc0_sck_cfg: mmc0-sck-cfg {
 					fsl,pinmux-ids = <
 						MX28_PAD_SSP0_SCK__SSP0_SCK
 					>;
-					fsl,drive-strength = <2>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_12mA>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				i2c0_pins_a: i2c0@0 {
@@ -479,9 +479,9 @@
 						MX28_PAD_I2C0_SCL__I2C0_SCL
 						MX28_PAD_I2C0_SDA__I2C0_SDA
 					>;
-					fsl,drive-strength = <1>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_8mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				i2c0_pins_b: i2c0@1 {
@@ -490,9 +490,9 @@
 						MX28_PAD_AUART0_RX__I2C0_SCL
 						MX28_PAD_AUART0_TX__I2C0_SDA
 					>;
-					fsl,drive-strength = <1>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_8mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				i2c1_pins_a: i2c1@0 {
@@ -501,9 +501,9 @@
 						MX28_PAD_PWM0__I2C1_SCL
 						MX28_PAD_PWM1__I2C1_SDA
 					>;
-					fsl,drive-strength = <1>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_8mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				saif0_pins_a: saif0@0 {
@@ -514,9 +514,9 @@
 						MX28_PAD_SAIF0_BITCLK__SAIF0_BITCLK
 						MX28_PAD_SAIF0_SDATA0__SAIF0_SDATA0
 					>;
-					fsl,drive-strength = <2>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_12mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				saif0_pins_b: saif0@1 {
@@ -526,9 +526,9 @@
 						MX28_PAD_SAIF0_BITCLK__SAIF0_BITCLK
 						MX28_PAD_SAIF0_SDATA0__SAIF0_SDATA0
 					>;
-					fsl,drive-strength = <2>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_12mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				saif1_pins_a: saif1@0 {
@@ -536,9 +536,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_SAIF1_SDATA0__SAIF1_SDATA0
 					>;
-					fsl,drive-strength = <2>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_12mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				pwm0_pins_a: pwm0@0 {
@@ -546,9 +546,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_PWM0__PWM_0
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				pwm2_pins_a: pwm2@0 {
@@ -556,9 +556,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_PWM2__PWM_2
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				pwm3_pins_a: pwm3@0 {
@@ -566,9 +566,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_PWM3__PWM_3
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				pwm3_pins_b: pwm3@1 {
@@ -576,9 +576,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_SAIF0_MCLK__PWM_3
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				pwm4_pins_a: pwm4@0 {
@@ -586,9 +586,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_PWM4__PWM_4
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				lcdif_24bit_pins_a: lcdif-24bit@0 {
@@ -619,9 +619,9 @@
 						MX28_PAD_LCD_D22__LCD_D22
 						MX28_PAD_LCD_D23__LCD_D23
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				lcdif_16bit_pins_a: lcdif-16bit@0 {
@@ -644,9 +644,9 @@
 						MX28_PAD_LCD_D14__LCD_D14
 						MX28_PAD_LCD_D15__LCD_D15
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				lcdif_sync_pins_a: lcdif-sync@0 {
@@ -657,9 +657,9 @@
 						MX28_PAD_LCD_RD_E__LCD_VSYNC
 						MX28_PAD_LCD_WR_RWN__LCD_HSYNC
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				can0_pins_a: can0@0 {
@@ -668,9 +668,9 @@
 						MX28_PAD_GPMI_RDY2__CAN0_TX
 						MX28_PAD_GPMI_RDY3__CAN0_RX
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				can1_pins_a: can1@0 {
@@ -679,9 +679,9 @@
 						MX28_PAD_GPMI_CE2N__CAN1_TX
 						MX28_PAD_GPMI_CE3N__CAN1_RX
 					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				spi2_pins_a: spi2@0 {
@@ -692,9 +692,9 @@
 						MX28_PAD_SSP2_MISO__SSP2_D0
 						MX28_PAD_SSP2_SS0__SSP2_D3
 					>;
-					fsl,drive-strength = <1>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_8mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 
 				spi3_pins_a: spi3@0 {
@@ -707,9 +707,9 @@
 						MX28_PAD_SSP3_MISO__SSP3_D0
 						MX28_PAD_SSP3_SS0__SSP3_D3
 					>;
-					fsl,drive-strength = <1>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_8mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				usbphy0_pins_a: usbphy0@0 {
@@ -717,9 +717,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_SSP2_SS2__USB0_OVERCURRENT
 					>;
-					fsl,drive-strength = <2>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_12mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				usbphy0_pins_b: usbphy0@1 {
@@ -727,9 +727,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_AUART1_CTS__USB0_OVERCURRENT
 					>;
-					fsl,drive-strength = <2>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_12mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				usbphy1_pins_a: usbphy1@0 {
@@ -737,9 +737,9 @@
 					fsl,pinmux-ids = <
 						MX28_PAD_SSP2_SS1__USB1_OVERCURRENT
 					>;
-					fsl,drive-strength = <2>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
+					fsl,drive-strength = <MXS_DRIVE_12mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
 				usb0_id_pins_a: usb0id@0 {
-- 
cgit 


From d1d67d71d5e86e0c401bb91f91c6a44b8f408b1d Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Thu, 1 Aug 2013 12:22:04 +0800
Subject: ARM: dts: imx6q: add quirky select input for USB_OTG_ID

For some reason, the select input of pin function USB_OTG_ID is not
implemented via a regular select input register but using the bit
USB_OTG_ID_ SEL (shift 13) of IOMUXC_GPR1 register (offset 0x4).

As per the workaround for such quirk implemented in pinctrl driver,
we need to compose the input_val cell as below.

	31     23      15      7        0
	| 0xff | shift | width | select |

Thus, we have 0xff0d0100 for MX6QDL_PAD_ENET_RX_ER__USB_OTG_ID and
0xff0d0101 for MX6QDL_PAD_GPIO_1__USB_OTG_ID in input_val cell.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/imx6q-pinfunc.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/imx6q-pinfunc.h b/arch/arm/boot/dts/imx6q-pinfunc.h
index 9bbe82bdee41..97ed0816a6e0 100644
--- a/arch/arm/boot/dts/imx6q-pinfunc.h
+++ b/arch/arm/boot/dts/imx6q-pinfunc.h
@@ -536,7 +536,7 @@
 #define MX6QDL_PAD_ENET_REF_CLK__ESAI_RX_FS         0x1d4 0x4e8 0x85c 0x2 0x0
 #define MX6QDL_PAD_ENET_REF_CLK__GPIO1_IO23         0x1d4 0x4e8 0x000 0x5 0x0
 #define MX6QDL_PAD_ENET_REF_CLK__SPDIF_SR_CLK       0x1d4 0x4e8 0x000 0x6 0x0
-#define MX6QDL_PAD_ENET_RX_ER__USB_OTG_ID           0x1d8 0x4ec 0x000 0x0 0x0
+#define MX6QDL_PAD_ENET_RX_ER__USB_OTG_ID           0x1d8 0x4ec 0x004 0x0 0xff0d0100
 #define MX6QDL_PAD_ENET_RX_ER__ENET_RX_ER           0x1d8 0x4ec 0x000 0x1 0x0
 #define MX6QDL_PAD_ENET_RX_ER__ESAI_RX_HF_CLK       0x1d8 0x4ec 0x864 0x2 0x0
 #define MX6QDL_PAD_ENET_RX_ER__SPDIF_IN             0x1d8 0x4ec 0x914 0x3 0x1
@@ -654,7 +654,7 @@
 #define MX6QDL_PAD_GPIO_1__ESAI_RX_CLK              0x224 0x5f4 0x86c 0x0 0x1
 #define MX6QDL_PAD_GPIO_1__WDOG2_B                  0x224 0x5f4 0x000 0x1 0x0
 #define MX6QDL_PAD_GPIO_1__KEY_ROW5                 0x224 0x5f4 0x8f4 0x2 0x0
-#define MX6QDL_PAD_GPIO_1__USB_OTG_ID               0x224 0x5f4 0x000 0x3 0x0
+#define MX6QDL_PAD_GPIO_1__USB_OTG_ID               0x224 0x5f4 0x004 0x3 0xff0d0101
 #define MX6QDL_PAD_GPIO_1__PWM2_OUT                 0x224 0x5f4 0x000 0x4 0x0
 #define MX6QDL_PAD_GPIO_1__GPIO1_IO01               0x224 0x5f4 0x000 0x5 0x0
 #define MX6QDL_PAD_GPIO_1__SD1_CD_B                 0x224 0x5f4 0x000 0x6 0x0
-- 
cgit 


From af67a755376df068aae678e96e42c72fb631b87b Mon Sep 17 00:00:00 2001
From: Lothar Waßmann <LW@KARO-electronics.de>
Date: Mon, 23 Sep 2013 12:20:48 +0200
Subject: ARM: dts: tx28: restructure and update DTS file
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Update the Ka-Ro TX28 DTS file.

- add Copyright header
- use label references for better readability
- sort the entries alphabetically
- add some aliases used by U-Boot to modify the DT data

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx28-tx28.dts | 701 ++++++++++++++++++++++++++++++++++-----
 1 file changed, 619 insertions(+), 82 deletions(-)

diff --git a/arch/arm/boot/dts/imx28-tx28.dts b/arch/arm/boot/dts/imx28-tx28.dts
index 3dbe1d7da467..be5a0550d58c 100644
--- a/arch/arm/boot/dts/imx28-tx28.dts
+++ b/arch/arm/boot/dts/imx28-tx28.dts
@@ -1,106 +1,139 @@
+/*
+ * Copyright 2012 Shawn Guo <shawn.guo@linaro.org>
+ * Copyright 2013 Lothar Waßmann <LW@KARO-electronics.de>
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
 /dts-v1/;
 #include "imx28.dtsi"
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	model = "Ka-Ro electronics TX28 module";
 	compatible = "karo,tx28", "fsl,imx28";
 
+	aliases {
+		can0 = &can0;
+		can1 = &can1;
+		display = &display;
+		ds1339 = &ds1339;
+		gpio5 = &gpio5;
+		lcdif = &lcdif;
+		lcdif_23bit_pins = &tx28_lcdif_23bit_pins;
+		lcdif_24bit_pins = &lcdif_24bit_pins_a;
+		stk5led = &user_led;
+		usbotg = &usb0;
+	};
+
 	memory {
-		reg = <0x40000000 0x08000000>;
-	};
-
-	apb@80000000 {
-		apbh@80000000 {
-			ssp0: ssp@80010000 {
-				compatible = "fsl,imx28-mmc";
-				pinctrl-names = "default";
-				pinctrl-0 = <&mmc0_4bit_pins_a
-					     &mmc0_cd_cfg
-					     &mmc0_sck_cfg>;
-				bus-width = <4>;
-				status = "okay";
-			};
+		reg = <0 0>; /* will be filled in by U-Boot */
+	};
 
-			pinctrl@80018000 {
-				pinctrl-names = "default";
-				pinctrl-0 = <&hog_pins_a>;
-
-				hog_pins_a: hog@0 {
-					reg = <0>;
-					fsl,pinmux-ids = <
-						0x40a3 /* MX28_PAD_ENET0_RXD3__GPIO_4_10 */
-					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
-				};
-
-				mac0_pins_gpio: mac0-gpio-mode@0 {
-					reg = <0>;
-					fsl,pinmux-ids = <
-						0x4003 /* MX28_PAD_ENET0_MDC__GPIO_4_0 */
-						0x4013 /* MX28_PAD_ENET0_MDIO__GPIO_4_1 */
-						0x4023 /* MX28_PAD_ENET0_RX_EN__GPIO_4_2 */
-						0x4033 /* MX28_PAD_ENET0_RXD0__GPIO_4_3 */
-						0x4043 /* MX28_PAD_ENET0_RXD1__GPIO_4_4 */
-						0x4063 /* MX28_PAD_ENET0_TX_EN__GPIO_4_6 */
-						0x4073 /* MX28_PAD_ENET0_TXD0__GPIO_4_7 */
-						0x4083 /* MX28_PAD_ENET0_TXD1__GPIO_4_8 */
-						0x4103 /* MX28_PAD_ENET_CLK__GPIO_4_16 */
-					>;
-					fsl,drive-strength = <0>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <0>;
-				};
-			};
+	onewire {
+		compatible = "w1-gpio";
+		gpios = <&gpio2 7 0>;
+		status = "disabled";
+	};
+
+	regulators {
+		compatible = "simple-bus";
+
+		reg_usb0_vbus: usb0_vbus {
+			compatible = "regulator-fixed";
+			regulator-name = "usb0_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			gpio = <&gpio0 18 0>;
+			enable-active-high;
 		};
 
-		apbx@80040000 {
-			i2c0: i2c@80058000 {
-				pinctrl-names = "default";
-				pinctrl-0 = <&i2c0_pins_a>;
-				status = "okay";
+		reg_usb1_vbus: usb1_vbus {
+			compatible = "regulator-fixed";
+			regulator-name = "usb1_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			gpio = <&gpio3 27 0>;
+			enable-active-high;
+		};
 
-				ds1339: rtc@68 {
-					compatible = "mxim,ds1339";
-					reg = <0x68>;
-				};
-			};
+		reg_2p5v: 2p5v {
+			compatible = "regulator-fixed";
+			regulator-name = "2P5V";
+			regulator-min-microvolt = <2500000>;
+			regulator-max-microvolt = <2500000>;
+			regulator-always-on;
+		};
 
-			pwm: pwm@80064000 {
-				pinctrl-names = "default";
-				pinctrl-0 = <&pwm0_pins_a>;
-				status = "okay";
-			};
+		reg_3p3v: 3p3v {
+			compatible = "regulator-fixed";
+			regulator-name = "3P3V";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+		};
 
-			duart: serial@80074000 {
-				pinctrl-names = "default";
-				pinctrl-0 = <&duart_4pins_a>;
-				status = "okay";
-			};
+		reg_can_xcvr: can-xcvr {
+			compatible = "regulator-fixed";
+			regulator-name = "CAN XCVR";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			gpio = <&gpio1 0 0>;
+			enable-active-low;
+			pinctrl-names = "default";
+			pinctrl-0 = <&tx28_flexcan_xcvr_pins>;
+		};
 
-			auart1: serial@8006c000 {
-				pinctrl-names = "default";
-				pinctrl-0 = <&auart1_pins_a>;
-				status = "okay";
-			};
+		reg_lcd: lcd-power {
+			compatible = "regulator-fixed";
+			regulator-name = "LCD POWER";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			gpio = <&gpio1 31 0>;
+			enable-active-high;
+		};
+
+		reg_lcd_reset: lcd-reset {
+			compatible = "regulator-fixed";
+			regulator-name = "LCD RESET";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			gpio = <&gpio3 30 0>;
+			startup-delay-us = <300000>;
+			enable-active-high;
+			regulator-always-on;
+			regulator-boot-on;
 		};
 	};
 
-	ahb@80080000 {
-		mac0: ethernet@800f0000 {
-			phy-mode = "rmii";
-			pinctrl-names = "default", "gpio_mode";
-			pinctrl-0 = <&mac0_pins_a>;
-			pinctrl-1 = <&mac0_pins_gpio>;
-			status = "okay";
+	clocks {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		mclk: clock@0 {
+			compatible = "fixed-clock";
+			reg = <0>;
+			#clock-cells = <0>;
+			clock-frequency = <27000000>;
 		};
 	};
 
+	sound {
+		compatible = "fsl,imx28-tx28-sgtl5000",
+			     "fsl,mxs-audio-sgtl5000";
+		model = "imx28-tx28-sgtl5000";
+		saif-controllers = <&saif0 &saif1>;
+		audio-codec = <&sgtl5000>;
+	};
+
 	leds {
 		compatible = "gpio-leds";
 
-		user {
+		user_led: user {
 			label = "Heartbeat";
 			gpios = <&gpio4 10 0>;
 			linux,default-trigger = "heartbeat";
@@ -109,8 +142,512 @@
 
 	backlight {
 		compatible = "pwm-backlight";
-		pwms = <&pwm 0 5000000>;
-		brightness-levels = <0 4 8 16 32 64 128 255>;
-		default-brightness-level = <6>;
+		pwms = <&pwm 0 500000>;
+		/*
+		 * a silly way to create a 1:1 relationship between the
+		 * PWM value and the actual duty cycle
+		 */
+		brightness-levels = < 0  1  2  3  4  5  6  7  8  9
+				     10 11 12 13 14 15 16 17 18 19
+				     20 21 22 23 24 25 26 27 28 29
+				     30 31 32 33 34 35 36 37 38 39
+				     40 41 42 43 44 45 46 47 48 49
+				     50 51 52 53 54 55 56 57 58 59
+				     60 61 62 63 64 65 66 67 68 69
+				     70 71 72 73 74 75 76 77 78 79
+				     80 81 82 83 84 85 86 87 88 89
+				     90 91 92 93 94 95 96 97 98 99
+				    100>;
+		default-brightness-level = <50>;
+	};
+
+	matrix_keypad: matrix-keypad@0 {
+		compatible = "gpio-matrix-keypad";
+		col-gpios = <
+			&gpio5 0 0
+			&gpio5 1 0
+			&gpio5 2 0
+			&gpio5 3 0
+		>;
+		row-gpios = <
+			&gpio5 4 0
+			&gpio5 5 0
+			&gpio5 6 0
+			&gpio5 7 0
+		>;
+		/* sample keymap */
+		linux,keymap = <
+			0x00000074 /* row 0, col 0, KEY_POWER */
+			0x00010052 /* row 0, col 1, KEY_KP0 */
+			0x0002004f /* row 0, col 2, KEY_KP1 */
+			0x00030050 /* row 0, col 3, KEY_KP2 */
+			0x01000051 /* row 1, col 0, KEY_KP3 */
+			0x0101004b /* row 1, col 1, KEY_KP4 */
+			0x0102004c /* row 1, col 2, KEY_KP5 */
+			0x0103004d /* row 1, col 3, KEY_KP6 */
+			0x02000047 /* row 2, col 0, KEY_KP7 */
+			0x02010048 /* row 2, col 1, KEY_KP8 */
+			0x02020049 /* row 2, col 2, KEY_KP9 */
+		>;
+		gpio-activelow;
+		linux,wakeup;
+		debounce-delay-ms = <100>;
+		col-scan-delay-us = <5000>;
+		linux,no-autorepeat;
+	};
+};
+
+/* 2nd TX-Std UART - (A)UART1  */
+&auart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&auart1_pins_a>;
+	status = "okay";
+};
+
+/* 3rd TX-Std UART - (A)UART3  */
+&auart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&auart3_pins_a>;
+	status = "okay";
+};
+
+&can0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&can0_pins_a>;
+	xceiver-supply = <&reg_can_xcvr>;
+	status = "okay";
+};
+
+&can1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&can1_pins_a>;
+	xceiver-supply = <&reg_can_xcvr>;
+	status = "okay";
+};
+
+&digctl {
+	status = "okay";
+};
+
+/* 1st TX-Std UART - (D)UART */
+&duart {
+	pinctrl-names = "default";
+	pinctrl-0 = <&duart_4pins_a>;
+	status = "okay";
+};
+
+&gpmi {
+	pinctrl-0 = <&gpmi_pins_a &gpmi_status_cfg>;
+	nand-on-flash-bbt;
+	status = "okay";
+};
+
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins_a>;
+	clock-frequency = <400000>;
+	status = "okay";
+
+	sgtl5000: sgtl5000@0a {
+		compatible = "fsl,sgtl5000";
+		reg = <0x0a>;
+		VDDA-supply = <&reg_2p5v>;
+		VDDIO-supply = <&reg_3p3v>;
+		clocks = <&mclk>;
+	};
+
+	gpio5: pca953x@20 {
+		compatible = "nxp,pca9554";
+		reg = <0x20>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&tx28_pca9554_pins>;
+		interrupt-parent = <&gpio3>;
+		interrupts = <28 0>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+	};
+
+	polytouch: edt-ft5x06@38 {
+		compatible = "edt,edt-ft5x06";
+		reg = <0x38>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&tx28_edt_ft5x06_pins>;
+		interrupt-parent = <&gpio2>;
+		interrupts = <5 0>;
+		reset-gpios = <&gpio2 6 1>;
+		wake-gpios = <&gpio4 9 0>;
+	};
+
+	touchscreen: tsc2007@48 {
+		compatible = "ti,tsc2007";
+		reg = <0x48>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&tx28_tsc2007_pins>;
+		interrupt-parent = <&gpio3>;
+		interrupts = <20 0>;
+		pendown-gpio = <&gpio3 20 1>;
+		ti,x-plate-ohms = /bits/ 16 <660>;
+	};
+
+	ds1339: rtc@68 {
+		compatible = "mxim,ds1339";
+		reg = <0x68>;
+	};
+};
+
+&lcdif {
+	pinctrl-names = "default";
+	pinctrl-0 = <&lcdif_24bit_pins_a &lcdif_sync_pins_a &tx28_lcdif_ctrl_pins>;
+	lcd-supply = <&reg_lcd>;
+	display = <&display>;
+	status = "okay";
+
+	display: display@0 {
+		bits-per-pixel = <32>;
+		bus-width = <24>;
+		display-timings {
+			native-mode = <&timing5>;
+			timing0: timing0 {
+				panel-name = "VGA";
+				clock-frequency = <25175000>;
+				hactive = <640>;
+				vactive = <480>;
+				hback-porch = <48>;
+				hsync-len = <96>;
+				hfront-porch = <16>;
+				vback-porch = <33>;
+				vsync-len = <2>;
+				vfront-porch = <10>;
+				hsync-active = <0>;
+				vsync-active = <0>;
+				de-active = <1>;
+				pixelclk-active = <1>;
+			};
+
+			timing1: timing1 {
+				panel-name = "ETV570";
+				clock-frequency = <25175000>;
+				hactive = <640>;
+				vactive = <480>;
+				hback-porch = <114>;
+				hsync-len = <30>;
+				hfront-porch = <16>;
+				vback-porch = <32>;
+				vsync-len = <3>;
+				vfront-porch = <10>;
+				hsync-active = <0>;
+				vsync-active = <0>;
+				de-active = <1>;
+				pixelclk-active = <1>;
+			};
+
+			timing2: timing2 {
+				panel-name = "ET0350";
+				clock-frequency = <6500000>;
+				hactive = <320>;
+				vactive = <240>;
+				hback-porch = <34>;
+				hsync-len = <34>;
+				hfront-porch = <20>;
+				vback-porch = <15>;
+				vsync-len = <3>;
+				vfront-porch = <4>;
+				hsync-active = <0>;
+				vsync-active = <0>;
+				de-active = <1>;
+				pixelclk-active = <1>;
+			};
+
+			timing3: timing3 {
+				panel-name = "ET0430";
+				clock-frequency = <9000000>;
+				hactive = <480>;
+				vactive = <272>;
+				hback-porch = <2>;
+				hsync-len = <41>;
+				hfront-porch = <2>;
+				vback-porch = <2>;
+				vsync-len = <10>;
+				vfront-porch = <2>;
+				hsync-active = <0>;
+				vsync-active = <0>;
+				de-active = <1>;
+				pixelclk-active = <1>;
+			};
+
+			timing4: timing4 {
+				panel-name = "ET0500", "ET0700";
+				clock-frequency = <33260000>;
+				hactive = <800>;
+				vactive = <480>;
+				hback-porch = <88>;
+				hsync-len = <128>;
+				hfront-porch = <40>;
+				vback-porch = <33>;
+				vsync-len = <2>;
+				vfront-porch = <10>;
+				hsync-active = <0>;
+				vsync-active = <0>;
+				de-active = <1>;
+				pixelclk-active = <1>;
+			};
+
+			timing5: timing5 {
+				panel-name = "ETQ570";
+				clock-frequency = <6400000>;
+				hactive = <320>;
+				vactive = <240>;
+				hback-porch = <38>;
+				hsync-len = <30>;
+				hfront-porch = <30>;
+				vback-porch = <16>;
+				vsync-len = <3>;
+				vfront-porch = <4>;
+				hsync-active = <0>;
+				vsync-active = <0>;
+				de-active = <1>;
+				pixelclk-active = <1>;
+			};
+		};
+	};
+};
+
+&lradc {
+	fsl,lradc-touchscreen-wires = <4>;
+	status = "okay";
+};
+
+&mac0 {
+	phy-mode = "rmii";
+	pinctrl-names = "default", "gpio_mode";
+	pinctrl-0 = <&mac0_pins_a>;
+	pinctrl-1 = <&tx28_mac0_pins_gpio>;
+	status = "okay";
+};
+
+&mac1 {
+	phy-mode = "rmii";
+	pinctrl-names = "default";
+	pinctrl-0 = <&mac1_pins_a>;
+	/* not enabled by default */
+};
+
+&mxs_rtc {
+	status = "okay";
+};
+
+&ocotp {
+	status = "okay";
+};
+
+&pwm {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pwm0_pins_a>;
+	status = "okay";
+};
+
+&pinctrl {
+	pinctrl-names = "default";
+	pinctrl-0 = <&hog_pins_a>;
+
+	hog_pins_a: hog@0 {
+		reg = <0>;
+		fsl,pinmux-ids = <
+			MX28_PAD_ENET0_RXD3__GPIO_4_10 /* module LED */
+		>;
+		fsl,drive-strength = <MXS_DRIVE_4mA>;
+		fsl,voltage = <MXS_VOLTAGE_HIGH>;
+		fsl,pull-up = <MXS_PULL_DISABLE>;
+	};
+
+	tx28_edt_ft5x06_pins: tx28-edt-ft5x06-pins {
+		fsl,pinmux-ids = <
+			MX28_PAD_SSP0_DATA6__GPIO_2_6 /* RESET */
+			MX28_PAD_SSP0_DATA5__GPIO_2_5 /* IRQ */
+			MX28_PAD_ENET0_RXD2__GPIO_4_9 /* WAKE */
+		>;
+		fsl,drive-strength = <MXS_DRIVE_4mA>;
+		fsl,voltage = <MXS_VOLTAGE_HIGH>;
+		fsl,pull-up = <MXS_PULL_DISABLE>;
+	};
+
+	tx28_flexcan_xcvr_pins: tx28-flexcan-xcvr-pins {
+		fsl,pinmux-ids = <
+			MX28_PAD_LCD_D00__GPIO_1_0
+		>;
+		fsl,drive-strength = <MXS_DRIVE_4mA>;
+		fsl,voltage = <MXS_VOLTAGE_HIGH>;
+		fsl,pull-up = <MXS_PULL_DISABLE>;
+	};
+
+	tx28_lcdif_23bit_pins: tx28-lcdif-23bit {
+		fsl,pinmux-ids = <
+			/* LCD_D00 may be used as Flexcan Transceiver Enable on STK5-V5 */
+			MX28_PAD_LCD_D01__LCD_D1
+			MX28_PAD_LCD_D02__LCD_D2
+			MX28_PAD_LCD_D03__LCD_D3
+			MX28_PAD_LCD_D04__LCD_D4
+			MX28_PAD_LCD_D05__LCD_D5
+			MX28_PAD_LCD_D06__LCD_D6
+			MX28_PAD_LCD_D07__LCD_D7
+			MX28_PAD_LCD_D08__LCD_D8
+			MX28_PAD_LCD_D09__LCD_D9
+			MX28_PAD_LCD_D10__LCD_D10
+			MX28_PAD_LCD_D11__LCD_D11
+			MX28_PAD_LCD_D12__LCD_D12
+			MX28_PAD_LCD_D13__LCD_D13
+			MX28_PAD_LCD_D14__LCD_D14
+			MX28_PAD_LCD_D15__LCD_D15
+			MX28_PAD_LCD_D16__LCD_D16
+			MX28_PAD_LCD_D17__LCD_D17
+			MX28_PAD_LCD_D18__LCD_D18
+			MX28_PAD_LCD_D19__LCD_D19
+			MX28_PAD_LCD_D20__LCD_D20
+			MX28_PAD_LCD_D21__LCD_D21
+			MX28_PAD_LCD_D22__LCD_D22
+			MX28_PAD_LCD_D23__LCD_D23
+		>;
+		fsl,drive-strength = <MXS_DRIVE_4mA>;
+		fsl,voltage = <MXS_VOLTAGE_HIGH>;
+		fsl,pull-up = <MXS_PULL_DISABLE>;
+	};
+
+	tx28_lcdif_ctrl_pins: tx28-lcdif-ctrl {
+		fsl,pinmux-ids = <
+			MX28_PAD_LCD_ENABLE__GPIO_1_31 /* Enable */
+			MX28_PAD_LCD_RESET__GPIO_3_30  /* Reset */
+		>;
+		fsl,drive-strength = <MXS_DRIVE_4mA>;
+		fsl,voltage = <MXS_VOLTAGE_HIGH>;
+		fsl,pull-up = <MXS_PULL_DISABLE>;
+	};
+
+	tx28_mac0_pins_gpio: tx28-mac0-gpio-pins {
+		fsl,pinmux-ids = <
+			MX28_PAD_ENET0_MDC__GPIO_4_0
+			MX28_PAD_ENET0_MDIO__GPIO_4_1
+			MX28_PAD_ENET0_RX_EN__GPIO_4_2
+			MX28_PAD_ENET0_RXD0__GPIO_4_3
+			MX28_PAD_ENET0_RXD1__GPIO_4_4
+			MX28_PAD_ENET0_TX_EN__GPIO_4_6
+			MX28_PAD_ENET0_TXD0__GPIO_4_7
+			MX28_PAD_ENET0_TXD1__GPIO_4_8
+			MX28_PAD_ENET_CLK__GPIO_4_16
+		>;
+		fsl,drive-strength = <MXS_DRIVE_4mA>;
+		fsl,voltage = <MXS_VOLTAGE_HIGH>;
+		fsl,pull-up = <MXS_PULL_DISABLE>;
+	};
+
+	tx28_pca9554_pins: tx28-pca9554-pins {
+		fsl,pinmux-ids = <
+			MX28_PAD_PWM3__GPIO_3_28
+		>;
+		fsl,drive-strength = <MXS_DRIVE_4mA>;
+		fsl,voltage = <MXS_VOLTAGE_HIGH>;
+		fsl,pull-up = <MXS_PULL_DISABLE>;
+	};
+
+	tx28_tsc2007_pins: tx28-tsc2007-pins {
+		fsl,pinmux-ids = <
+			MX28_PAD_SAIF0_MCLK__GPIO_3_20 /* TSC2007 IRQ */
+		>;
+		fsl,drive-strength = <MXS_DRIVE_4mA>;
+		fsl,voltage = <MXS_VOLTAGE_HIGH>;
+		fsl,pull-up = <MXS_PULL_DISABLE>;
+	};
+
+
+	tx28_usbphy0_pins: tx28-usbphy0-pins {
+		fsl,pinmux-ids = <
+			MX28_PAD_GPMI_CE2N__GPIO_0_18 /* USBOTG_VBUSEN */
+			MX28_PAD_GPMI_CE3N__GPIO_0_19 /* USBOTH_OC */
+		>;
+		fsl,drive-strength = <MXS_DRIVE_12mA>;
+		fsl,voltage = <MXS_VOLTAGE_HIGH>;
+		fsl,pull-up = <MXS_PULL_DISABLE>;
+	};
+
+	tx28_usbphy1_pins: tx28-usbphy1-pins {
+		fsl,pinmux-ids = <
+			MX28_PAD_SPDIF__GPIO_3_27 /* USBH_VBUSEN */
+			MX28_PAD_JTAG_RTCK__GPIO_4_20 /* USBH_OC */
+		>;
+		fsl,drive-strength = <MXS_DRIVE_12mA>;
+		fsl,voltage = <MXS_VOLTAGE_HIGH>;
+		fsl,pull-up = <MXS_PULL_DISABLE>;
+	};
+};
+
+&saif0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&saif0_pins_b>;
+	fsl,saif-master;
+	status = "okay";
+};
+
+&saif1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&saif1_pins_a>;
+	status = "okay";
+};
+
+&ssp0 {
+	compatible = "fsl,imx28-mmc";
+	pinctrl-names = "default", "special";
+	pinctrl-0 = <&mmc0_4bit_pins_a
+		     &mmc0_cd_cfg
+		     &mmc0_sck_cfg>;
+	bus-width = <4>;
+	status = "okay";
+};
+
+&ssp3 {
+	compatible = "fsl,imx28-spi";
+	pinctrl-names = "default";
+	pinctrl-0 = <&spi3_pins_a>;
+	clock-frequency = <57600000>;
+	status = "okay";
+
+	spidev0: spi@0 {
+		compatible = "spidev";
+		reg = <0>;
+		spi-max-frequency = <57600000>;
+	};
+
+	spidev1: spi@1 {
+		compatible = "spidev";
+		reg = <1>;
+		spi-max-frequency = <57600000>;
 	};
 };
+
+&usb0 {
+	vbus-supply = <&reg_usb0_vbus>;
+	disable-over-current;
+	dr_mode = "peripheral";
+	status = "okay";
+};
+
+&usb1 {
+	vbus-supply = <&reg_usb1_vbus>;
+	disable-over-current;
+	dr_mode = "host";
+	status = "okay";
+};
+
+&usbphy0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&tx28_usbphy0_pins>;
+	phy_type = "utmi";
+	status = "okay";
+};
+
+&usbphy1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&tx28_usbphy1_pins>;
+	phy_type = "utmi";
+	status = "okay";
+};
-- 
cgit 


From e96e1782d89f7538971954b4f78f44a0be1b9144 Mon Sep 17 00:00:00 2001
From: Lothar Waßmann <LW@KARO-electronics.de>
Date: Mon, 23 Sep 2013 14:20:27 +0200
Subject: ARM: dts: mxs: convert usb0_id_pins_a to use symbolic pin defs
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This pin definition had been added after the initial patch to use
symbolic pin names in DTS files.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx28.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
index 44151f54a4df..918d419772dd 100644
--- a/arch/arm/boot/dts/imx28.dtsi
+++ b/arch/arm/boot/dts/imx28.dtsi
@@ -745,11 +745,11 @@
 				usb0_id_pins_a: usb0id@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-						0x3071 /* MX28_PAD_AUART1_RTS__USB0_ID */
+						MX28_PAD_AUART1_RTS__USB0_ID
 					>;
-					fsl,drive-strength = <2>;
-					fsl,voltage = <1>;
-					fsl,pull-up = <1>;
+					fsl,drive-strength = <MXS_DRIVE_12mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
 				};
 			};
 
-- 
cgit 


From 931398ecd51bc7d6f3a22561c31bfd34d030c94a Mon Sep 17 00:00:00 2001
From: Matt Porter <matt.porter@linaro.org>
Date: Mon, 23 Sep 2013 11:14:44 -0400
Subject: ARM: dts: add initial VF610 Cosmic/Cosmic+ board support

Add initial PHYTEC VF610 Cosmic/Cosmic+ board support with
UART and FEC enabled.

Signed-off-by: Matt Porter <matt.porter@linaro.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/Makefile         |  1 +
 arch/arm/boot/dts/vf610-cosmic.dts | 47 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 48 insertions(+)
 create mode 100644 arch/arm/boot/dts/vf610-cosmic.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index e95af3f5433b..c703da2581cf 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -142,6 +142,7 @@ dtb-$(CONFIG_ARCH_MXC) += \
 	imx6q-sbc6x.dtb \
 	imx6q-wandboard.dtb \
 	imx6sl-evk.dtb \
+	vf610-cosmic.dtb \
 	vf610-twr.dtb
 dtb-$(CONFIG_ARCH_MXS) += imx23-evk.dtb \
 	imx23-olinuxino.dtb \
diff --git a/arch/arm/boot/dts/vf610-cosmic.dts b/arch/arm/boot/dts/vf610-cosmic.dts
new file mode 100644
index 000000000000..c42e4f938dcd
--- /dev/null
+++ b/arch/arm/boot/dts/vf610-cosmic.dts
@@ -0,0 +1,47 @@
+/*
+ * Copyright 2013 Freescale Semiconductor, Inc.
+ * Copyright 2013 Linaro Limited
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+/dts-v1/;
+#include "vf610.dtsi"
+
+/ {
+	model = "PHYTEC Cosmic/Cosmic+ Board";
+	compatible = "phytec,vf610-cosmic", "fsl,vf610";
+
+	chosen {
+		bootargs = "console=ttyLP1,115200";
+	};
+
+	memory {
+		reg = <0x80000000 0x10000000>;
+	};
+
+	clocks {
+		enet_ext {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <50000000>;
+		};
+	};
+
+};
+
+&fec1 {
+	phy-mode = "rmii";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_fec1_1>;
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart1_1>;
+	status = "okay";
+};
-- 
cgit 


From f6dc2095a0da8906ec65be98cfc508aaadcf5d28 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Thu, 26 Sep 2013 10:12:22 +0300
Subject: ath10k: report A-MSDU subframes individually

HW reports each A-MSDU subframe as a separate
sk_buff. It is impossible to configure it to
behave differently.

Until now ath10k was reconstructing A-MSDUs from
subframes which involved a lot of memory
operations. This proved to be a significant
contributor to degraded RX performance.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt_rx.c | 206 +++++++++++++------------------
 drivers/net/wireless/ath/ath10k/txrx.c   |   2 +
 2 files changed, 85 insertions(+), 123 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index 62ea9c8f80c4..617df96e4ffd 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -41,6 +41,10 @@
 /* when under memory pressure rx ring refill may fail and needs a retry */
 #define HTT_RX_RING_REFILL_RETRY_MS 50
 
+
+static int ath10k_htt_rx_get_csum_state(struct sk_buff *skb);
+
+
 static int ath10k_htt_rx_ring_size(struct ath10k_htt *htt)
 {
 	int size;
@@ -591,136 +595,111 @@ static bool ath10k_htt_rx_hdr_is_amsdu(struct ieee80211_hdr *hdr)
 	return false;
 }
 
-static int ath10k_htt_rx_amsdu(struct ath10k_htt *htt,
-			struct htt_rx_info *info)
+struct rfc1042_hdr {
+	u8 llc_dsap;
+	u8 llc_ssap;
+	u8 llc_ctrl;
+	u8 snap_oui[3];
+	__be16 snap_type;
+} __packed;
+
+struct amsdu_subframe_hdr {
+	u8 dst[ETH_ALEN];
+	u8 src[ETH_ALEN];
+	__be16 len;
+} __packed;
+
+static void ath10k_htt_rx_amsdu(struct ath10k_htt *htt,
+				struct htt_rx_info *info)
 {
 	struct htt_rx_desc *rxd;
-	struct sk_buff *amsdu;
 	struct sk_buff *first;
-	struct ieee80211_hdr *hdr;
 	struct sk_buff *skb = info->skb;
 	enum rx_msdu_decap_format fmt;
 	enum htt_rx_mpdu_encrypt_type enctype;
+	struct ieee80211_hdr *hdr;
+	u8 hdr_buf[64];
 	unsigned int hdr_len;
-	int crypto_len;
 
 	rxd = (void *)skb->data - sizeof(*rxd);
-	fmt = MS(__le32_to_cpu(rxd->msdu_start.info1),
-			RX_MSDU_START_INFO1_DECAP_FORMAT);
 	enctype = MS(__le32_to_cpu(rxd->mpdu_start.info0),
 			RX_MPDU_START_INFO0_ENCRYPT_TYPE);
 
-	/* FIXME: No idea what assumptions are safe here. Need logs */
-	if ((fmt == RX_MSDU_DECAP_RAW && skb->next)) {
-		ath10k_htt_rx_free_msdu_chain(skb->next);
-		skb->next = NULL;
-		return -ENOTSUPP;
-	}
+	hdr = (struct ieee80211_hdr *)rxd->rx_hdr_status;
+	hdr_len = ieee80211_hdrlen(hdr->frame_control);
+	memcpy(hdr_buf, hdr, hdr_len);
+	hdr = (struct ieee80211_hdr *)hdr_buf;
 
-	/* A-MSDU max is a little less than 8K */
-	amsdu = dev_alloc_skb(8*1024);
-	if (!amsdu) {
-		ath10k_warn("A-MSDU allocation failed\n");
-		ath10k_htt_rx_free_msdu_chain(skb->next);
-		skb->next = NULL;
-		return -ENOMEM;
-	}
-
-	if (fmt >= RX_MSDU_DECAP_NATIVE_WIFI) {
-		int hdrlen;
-
-		hdr = (void *)rxd->rx_hdr_status;
-		hdrlen = ieee80211_hdrlen(hdr->frame_control);
-		memcpy(skb_put(amsdu, hdrlen), hdr, hdrlen);
-	}
+	/* FIXME: Hopefully this is a temporary measure.
+	 *
+	 * Reporting individual A-MSDU subframes means each reported frame
+	 * shares the same sequence number.
+	 *
+	 * mac80211 drops frames it recognizes as duplicates, i.e.
+	 * retransmission flag is set and sequence number matches sequence
+	 * number from a previous frame (as per IEEE 802.11-2012: 9.3.2.10
+	 * "Duplicate detection and recovery")
+	 *
+	 * To avoid frames being dropped clear retransmission flag for all
+	 * received A-MSDUs.
+	 *
+	 * Worst case: actual duplicate frames will be reported but this should
+	 * still be handled gracefully by other OSI/ISO layers. */
+	hdr->frame_control &= cpu_to_le16(~IEEE80211_FCTL_RETRY);
 
 	first = skb;
 	while (skb) {
 		void *decap_hdr;
-		int decap_len = 0;
+		int len;
 
 		rxd = (void *)skb->data - sizeof(*rxd);
 		fmt = MS(__le32_to_cpu(rxd->msdu_start.info1),
-				RX_MSDU_START_INFO1_DECAP_FORMAT);
+			 RX_MSDU_START_INFO1_DECAP_FORMAT);
 		decap_hdr = (void *)rxd->rx_hdr_status;
 
-		if (skb == first) {
-			/* We receive linked A-MSDU subframe skbuffs. The
-			 * first one contains the original 802.11 header (and
-			 * possible crypto param) in the RX descriptor. The
-			 * A-MSDU subframe header follows that. Each part is
-			 * aligned to 4 byte boundary. */
-
-			hdr = (void *)amsdu->data;
-			hdr_len = ieee80211_hdrlen(hdr->frame_control);
-			crypto_len = ath10k_htt_rx_crypto_param_len(enctype);
-
-			decap_hdr += roundup(hdr_len, 4);
-			decap_hdr += roundup(crypto_len, 4);
-		}
-
-		/* When fmt == RX_MSDU_DECAP_8023_SNAP_LLC:
-		 *
-		 * SNAP 802.3 consists of:
-		 * [dst:6][src:6][len:2][dsap:1][ssap:1][ctl:1][snap:5]
-		 * [data][fcs:4].
-		 *
-		 * Since this overlaps with A-MSDU header (da, sa, len)
-		 * there's nothing extra to do. */
-
-		if (fmt == RX_MSDU_DECAP_ETHERNET2_DIX) {
-			/* Ethernet2 decap inserts ethernet header in place of
-			 * A-MSDU subframe header. */
-			skb_pull(skb, 6 + 6 + 2);
-
-			/* A-MSDU subframe header length */
-			decap_len += 6 + 6 + 2;
-
-			/* Ethernet2 decap also strips the LLC/SNAP so we need
-			 * to re-insert it. The LLC/SNAP follows A-MSDU
-			 * subframe header. */
-			/* FIXME: Not all LLCs are 8 bytes long */
-			decap_len += 8;
-
-			memcpy(skb_put(amsdu, decap_len), decap_hdr, decap_len);
-		}
+		skb->ip_summed = ath10k_htt_rx_get_csum_state(skb);
 
-		if (fmt == RX_MSDU_DECAP_NATIVE_WIFI) {
-			/* Native Wifi decap inserts regular 802.11 header
-			 * in place of A-MSDU subframe header. */
-			hdr = (struct ieee80211_hdr *)skb->data;
-			skb_pull(skb, ieee80211_hdrlen(hdr->frame_control));
-
-			/* A-MSDU subframe header length */
-			decap_len += 6 + 6 + 2;
-
-			memcpy(skb_put(amsdu, decap_len), decap_hdr, decap_len);
+		/* First frame in an A-MSDU chain has more decapped data. */
+		if (skb == first) {
+			len = round_up(ieee80211_hdrlen(hdr->frame_control), 4);
+			len += round_up(ath10k_htt_rx_crypto_param_len(enctype),
+					4);
+			decap_hdr += len;
 		}
 
-		if (fmt == RX_MSDU_DECAP_RAW)
-			skb_trim(skb, skb->len - 4); /* remove FCS */
-
-		memcpy(skb_put(amsdu, skb->len), skb->data, skb->len);
-
-		/* A-MSDU subframes are padded to 4bytes
-		 * but relative to first subframe, not the whole MPDU */
-		if (skb->next && ((decap_len + skb->len) & 3)) {
-			int padlen = 4 - ((decap_len + skb->len) & 3);
-			memset(skb_put(amsdu, padlen), 0, padlen);
+		switch (fmt) {
+		case RX_MSDU_DECAP_RAW:
+			skb_trim(skb, skb->len - FCS_LEN);
+			break;
+		case RX_MSDU_DECAP_NATIVE_WIFI:
+			break;
+		case RX_MSDU_DECAP_ETHERNET2_DIX:
+			len = 0;
+			len += sizeof(struct rfc1042_hdr);
+			len += sizeof(struct amsdu_subframe_hdr);
+
+			skb_pull(skb, sizeof(struct ethhdr));
+			memcpy(skb_push(skb, len), decap_hdr, len);
+			memcpy(skb_push(skb, hdr_len), hdr, hdr_len);
+			break;
+		case RX_MSDU_DECAP_8023_SNAP_LLC:
+			memcpy(skb_push(skb, hdr_len), hdr, hdr_len);
+			break;
 		}
 
+		info->skb = skb;
+		info->encrypt_type = enctype;
 		skb = skb->next;
-	}
-
-	info->skb = amsdu;
-	info->encrypt_type = enctype;
+		info->skb->next = NULL;
 
-	ath10k_htt_rx_free_msdu_chain(first);
+		ath10k_process_rx(htt->ar, info);
+	}
 
-	return 0;
+	/* FIXME: It might be nice to re-assemble the A-MSDU when there's a
+	 * monitor interface active for sniffing purposes. */
 }
 
-static int ath10k_htt_rx_msdu(struct ath10k_htt *htt, struct htt_rx_info *info)
+static void ath10k_htt_rx_msdu(struct ath10k_htt *htt, struct htt_rx_info *info)
 {
 	struct sk_buff *skb = info->skb;
 	struct htt_rx_desc *rxd;
@@ -742,6 +721,8 @@ static int ath10k_htt_rx_msdu(struct ath10k_htt *htt, struct htt_rx_info *info)
 			RX_MPDU_START_INFO0_ENCRYPT_TYPE);
 	hdr = (void *)skb->data - RX_HTT_HDR_STATUS_LEN;
 
+	skb->ip_summed = ath10k_htt_rx_get_csum_state(skb);
+
 	switch (fmt) {
 	case RX_MSDU_DECAP_RAW:
 		/* remove trailing FCS */
@@ -782,7 +763,8 @@ static int ath10k_htt_rx_msdu(struct ath10k_htt *htt, struct htt_rx_info *info)
 
 	info->skb = skb;
 	info->encrypt_type = enctype;
-	return 0;
+
+	ath10k_process_rx(htt->ar, info);
 }
 
 static bool ath10k_htt_rx_has_decrypt_err(struct sk_buff *skb)
@@ -854,8 +836,6 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 	int fw_desc_len;
 	u8 *fw_desc;
 	int i, j;
-	int ret;
-	int ip_summed;
 
 	memset(&info, 0, sizeof(info));
 
@@ -930,11 +910,6 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 				continue;
 			}
 
-			/* The skb is not yet processed and it may be
-			 * reallocated. Since the offload is in the original
-			 * skb extract the checksum now and assign it later */
-			ip_summed = ath10k_htt_rx_get_csum_state(msdu_head);
-
 			info.skb     = msdu_head;
 			info.fcs_err = ath10k_htt_rx_has_fcs_err(msdu_head);
 			info.signal  = ATH10K_DEFAULT_NOISE_FLOOR;
@@ -947,24 +922,9 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 			hdr = ath10k_htt_rx_skb_get_hdr(msdu_head);
 
 			if (ath10k_htt_rx_hdr_is_amsdu(hdr))
-				ret = ath10k_htt_rx_amsdu(htt, &info);
+				ath10k_htt_rx_amsdu(htt, &info);
 			else
-				ret = ath10k_htt_rx_msdu(htt, &info);
-
-			if (ret && !info.fcs_err) {
-				ath10k_warn("error processing msdus %d\n", ret);
-				dev_kfree_skb_any(info.skb);
-				continue;
-			}
-
-			if (ath10k_htt_rx_hdr_is_amsdu((void *)info.skb->data))
-				ath10k_dbg(ATH10K_DBG_HTT, "htt mpdu is amsdu\n");
-
-			info.skb->ip_summed = ip_summed;
-
-			ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt mpdu: ",
-					info.skb->data, info.skb->len);
-			ath10k_process_rx(htt->ar, &info);
+				ath10k_htt_rx_msdu(htt, &info);
 		}
 	}
 
diff --git a/drivers/net/wireless/ath/ath10k/txrx.c b/drivers/net/wireless/ath/ath10k/txrx.c
index 57931d0fae4b..5ae373a1e294 100644
--- a/drivers/net/wireless/ath/ath10k/txrx.c
+++ b/drivers/net/wireless/ath/ath10k/txrx.c
@@ -268,6 +268,8 @@ void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info)
 		   status->vht_nss,
 		   status->freq,
 		   status->band);
+	ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "rx skb: ",
+			info->skb->data, info->skb->len);
 
 	ieee80211_rx(ar->hw, info->skb);
 }
-- 
cgit 


From 26d1e9c2610c36689d48f7167ddc007e970d5489 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Thu, 26 Sep 2013 10:12:23 +0300
Subject: ath10k: document decap modes

Clarify how each decap mode works in one place.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/rx_desc.h | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/rx_desc.h b/drivers/net/wireless/ath/ath10k/rx_desc.h
index bfec6c8f2ecb..1c584c4b019c 100644
--- a/drivers/net/wireless/ath/ath10k/rx_desc.h
+++ b/drivers/net/wireless/ath/ath10k/rx_desc.h
@@ -422,10 +422,30 @@ struct rx_mpdu_end {
 #define RX_MSDU_START_INFO1_IP_FRAG             (1 << 14)
 #define RX_MSDU_START_INFO1_TCP_ONLY_ACK        (1 << 15)
 
+/* The decapped header (rx_hdr_status) contains the following:
+ *  a) 802.11 header
+ *  [padding to 4 bytes]
+ *  b) HW crypto parameter
+ *     - 0 bytes for no security
+ *     - 4 bytes for WEP
+ *     - 8 bytes for TKIP, AES
+ *  [padding to 4 bytes]
+ *  c) A-MSDU subframe header (14 bytes) if appliable
+ *  d) LLC/SNAP (RFC1042, 8 bytes)
+ *
+ * In case of A-MSDU only first frame in sequence contains (a) and (b). */
 enum rx_msdu_decap_format {
-	RX_MSDU_DECAP_RAW           = 0,
-	RX_MSDU_DECAP_NATIVE_WIFI   = 1,
+	RX_MSDU_DECAP_RAW = 0,
+
+	/* Note: QoS frames are reported as non-QoS. The rx_hdr_status in
+	 * htt_rx_desc contains the original decapped 802.11 header. */
+	RX_MSDU_DECAP_NATIVE_WIFI = 1,
+
+	/* Payload contains an ethernet header (struct ethhdr). */
 	RX_MSDU_DECAP_ETHERNET2_DIX = 2,
+
+	/* Payload contains two 48-bit addresses and 2-byte length (14 bytes
+	 * total), followed by an RFC1042 header (8 bytes). */
 	RX_MSDU_DECAP_8023_SNAP_LLC = 3
 };
 
-- 
cgit 


From e3fbf8d22a7ba109d1542c50c063acc23ef818ff Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Thu, 26 Sep 2013 10:12:23 +0300
Subject: ath10k: cleanup RX decap handling

Simplify decapping code and make it easier to
understand.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt_rx.c | 54 +++++++++++++++++---------------
 1 file changed, 28 insertions(+), 26 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index 617df96e4ffd..cdb4e6da7cc2 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -669,11 +669,16 @@ static void ath10k_htt_rx_amsdu(struct ath10k_htt *htt,
 
 		switch (fmt) {
 		case RX_MSDU_DECAP_RAW:
+			/* remove trailing FCS */
 			skb_trim(skb, skb->len - FCS_LEN);
 			break;
 		case RX_MSDU_DECAP_NATIVE_WIFI:
+			/* nothing to do */
 			break;
 		case RX_MSDU_DECAP_ETHERNET2_DIX:
+			/* strip ethernet header and insert decapped 802.11
+			 * header, amsdu subframe header and rfc1042 header */
+
 			len = 0;
 			len += sizeof(struct rfc1042_hdr);
 			len += sizeof(struct amsdu_subframe_hdr);
@@ -683,6 +688,8 @@ static void ath10k_htt_rx_amsdu(struct ath10k_htt *htt,
 			memcpy(skb_push(skb, hdr_len), hdr, hdr_len);
 			break;
 		case RX_MSDU_DECAP_8023_SNAP_LLC:
+			/* insert decapped 802.11 header making a singly
+			 * A-MSDU */
 			memcpy(skb_push(skb, hdr_len), hdr, hdr_len);
 			break;
 		}
@@ -706,6 +713,8 @@ static void ath10k_htt_rx_msdu(struct ath10k_htt *htt, struct htt_rx_info *info)
 	struct ieee80211_hdr *hdr;
 	enum rx_msdu_decap_format fmt;
 	enum htt_rx_mpdu_encrypt_type enctype;
+	int hdr_len;
+	void *rfc1042;
 
 	/* This shouldn't happen. If it does than it may be a FW bug. */
 	if (skb->next) {
@@ -719,46 +728,39 @@ static void ath10k_htt_rx_msdu(struct ath10k_htt *htt, struct htt_rx_info *info)
 			RX_MSDU_START_INFO1_DECAP_FORMAT);
 	enctype = MS(__le32_to_cpu(rxd->mpdu_start.info0),
 			RX_MPDU_START_INFO0_ENCRYPT_TYPE);
-	hdr = (void *)skb->data - RX_HTT_HDR_STATUS_LEN;
+	hdr = (struct ieee80211_hdr *)rxd->rx_hdr_status;
+	hdr_len = ieee80211_hdrlen(hdr->frame_control);
 
 	skb->ip_summed = ath10k_htt_rx_get_csum_state(skb);
 
 	switch (fmt) {
 	case RX_MSDU_DECAP_RAW:
 		/* remove trailing FCS */
-		skb_trim(skb, skb->len - 4);
+		skb_trim(skb, skb->len - FCS_LEN);
 		break;
 	case RX_MSDU_DECAP_NATIVE_WIFI:
 		/* nothing to do here */
 		break;
 	case RX_MSDU_DECAP_ETHERNET2_DIX:
-		/* macaddr[6] + macaddr[6] + ethertype[2] */
-		skb_pull(skb, 6 + 6 + 2);
-		break;
-	case RX_MSDU_DECAP_8023_SNAP_LLC:
-		/* macaddr[6] + macaddr[6] + len[2] */
-		/* we don't need this for non-A-MSDU */
-		skb_pull(skb, 6 + 6 + 2);
-		break;
-	}
-
-	if (fmt == RX_MSDU_DECAP_ETHERNET2_DIX) {
-		void *llc;
-		int llclen;
+		/* strip ethernet header and insert decapped 802.11 header and
+		 * rfc1042 header */
 
-		llclen = 8;
-		llc  = hdr;
-		llc += roundup(ieee80211_hdrlen(hdr->frame_control), 4);
-		llc += roundup(ath10k_htt_rx_crypto_param_len(enctype), 4);
+		rfc1042 = hdr;
+		rfc1042 += roundup(hdr_len, 4);
+		rfc1042 += roundup(ath10k_htt_rx_crypto_param_len(enctype), 4);
 
-		skb_push(skb, llclen);
-		memcpy(skb->data, llc, llclen);
-	}
+		skb_pull(skb, sizeof(struct ethhdr));
+		memcpy(skb_push(skb, sizeof(struct rfc1042_hdr)),
+		       rfc1042, sizeof(struct rfc1042_hdr));
+		memcpy(skb_push(skb, hdr_len), hdr, hdr_len);
+		break;
+	case RX_MSDU_DECAP_8023_SNAP_LLC:
+		/* remove A-MSDU subframe header and insert
+		 * decapped 802.11 header. rfc1042 header is already there */
 
-	if (fmt >= RX_MSDU_DECAP_ETHERNET2_DIX) {
-		int len = ieee80211_hdrlen(hdr->frame_control);
-		skb_push(skb, len);
-		memcpy(skb->data, hdr, len);
+		skb_pull(skb, sizeof(struct amsdu_subframe_hdr));
+		memcpy(skb_push(skb, hdr_len), hdr, hdr_len);
+		break;
 	}
 
 	info->skb = skb;
-- 
cgit 


From 784f69d31bd57973ef1dab9f5110018e38d92cf3 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Thu, 26 Sep 2013 10:12:23 +0300
Subject: ath10k: fix Native Wifi decap mode RX

NWifi decap mode always reports 802.11 Data
Frames, even when QoS Data Frames are actually
received.

This made mac80211 not report frame priority
properly (since there was no QoS Control field).

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt_rx.c | 32 +++++++++++++++++++++++++++++---
 1 file changed, 29 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index cdb4e6da7cc2..c4637f18734f 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -618,7 +618,7 @@ static void ath10k_htt_rx_amsdu(struct ath10k_htt *htt,
 	enum rx_msdu_decap_format fmt;
 	enum htt_rx_mpdu_encrypt_type enctype;
 	struct ieee80211_hdr *hdr;
-	u8 hdr_buf[64];
+	u8 hdr_buf[64], addr[ETH_ALEN], *qos;
 	unsigned int hdr_len;
 
 	rxd = (void *)skb->data - sizeof(*rxd);
@@ -673,7 +673,25 @@ static void ath10k_htt_rx_amsdu(struct ath10k_htt *htt,
 			skb_trim(skb, skb->len - FCS_LEN);
 			break;
 		case RX_MSDU_DECAP_NATIVE_WIFI:
-			/* nothing to do */
+			/* pull decapped header and copy DA */
+			hdr = (struct ieee80211_hdr *)skb->data;
+			hdr_len = ieee80211_hdrlen(hdr->frame_control);
+			memcpy(addr, ieee80211_get_DA(hdr), ETH_ALEN);
+			skb_pull(skb, hdr_len);
+
+			/* push original 802.11 header */
+			hdr = (struct ieee80211_hdr *)hdr_buf;
+			hdr_len = ieee80211_hdrlen(hdr->frame_control);
+			memcpy(skb_push(skb, hdr_len), hdr, hdr_len);
+
+			/* original A-MSDU header has the bit set but we're
+			 * not including A-MSDU subframe header */
+			hdr = (struct ieee80211_hdr *)skb->data;
+			qos = ieee80211_get_qos_ctl(hdr);
+			qos[0] &= ~IEEE80211_QOS_CTL_A_MSDU_PRESENT;
+
+			/* original 802.11 header has a different DA */
+			memcpy(ieee80211_get_DA(hdr), addr, ETH_ALEN);
 			break;
 		case RX_MSDU_DECAP_ETHERNET2_DIX:
 			/* strip ethernet header and insert decapped 802.11
@@ -739,7 +757,15 @@ static void ath10k_htt_rx_msdu(struct ath10k_htt *htt, struct htt_rx_info *info)
 		skb_trim(skb, skb->len - FCS_LEN);
 		break;
 	case RX_MSDU_DECAP_NATIVE_WIFI:
-		/* nothing to do here */
+		/* Pull decapped header */
+		hdr = (struct ieee80211_hdr *)skb->data;
+		hdr_len = ieee80211_hdrlen(hdr->frame_control);
+		skb_pull(skb, hdr_len);
+
+		/* Push original header */
+		hdr = (struct ieee80211_hdr *)rxd->rx_hdr_status;
+		hdr_len = ieee80211_hdrlen(hdr->frame_control);
+		memcpy(skb_push(skb, hdr_len), hdr, hdr_len);
 		break;
 	case RX_MSDU_DECAP_ETHERNET2_DIX:
 		/* strip ethernet header and insert decapped 802.11 header and
-- 
cgit 


From 4d316c79a5dcc13dea8110f0fcf295a17b4b625b Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Thu, 26 Sep 2013 10:12:24 +0300
Subject: ath10k: align RX frames properly

Ethernet-like decapping mode leaves IP protocol
frame not aligned to 4-byte boundaries. This leads
to re-aligning in mac80211 which in turn leads to
poor CPU cache behaviour on some machines.

Since HW doesn't allow to change payload offset
properly the solution is to force HW to decap in
Native Wifi mode which always has 24-bytes long
802.11 header (even for QoS frames). This means IP
frame is properly aligned in this decap mode.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/hw.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
index 643f0c9f052b..8c1be7685922 100644
--- a/drivers/net/wireless/ath/ath10k/hw.h
+++ b/drivers/net/wireless/ath/ath10k/hw.h
@@ -74,7 +74,11 @@ enum ath10k_mcast2ucast_mode {
 #define TARGET_RX_CHAIN_MASK			(BIT(0) | BIT(1) | BIT(2))
 #define TARGET_RX_TIMEOUT_LO_PRI		100
 #define TARGET_RX_TIMEOUT_HI_PRI		40
-#define TARGET_RX_DECAP_MODE			ATH10K_HW_TXRX_ETHERNET
+
+/* Native Wifi decap mode is used to align IP frames to 4-byte boundaries and
+ * avoid a very expensive re-alignment in mac80211. */
+#define TARGET_RX_DECAP_MODE			ATH10K_HW_TXRX_NATIVE_WIFI
+
 #define TARGET_SCAN_MAX_PENDING_REQS		4
 #define TARGET_BMISS_OFFLOAD_MAX_VDEV		3
 #define TARGET_ROAM_OFFLOAD_MAX_VDEV		3
-- 
cgit 


From 77a42796786c2ea2d3a67262fb5f1f707c3e0594 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sat, 7 Sep 2013 07:43:08 +0200
Subject: m68k: Remove deprecated IRQF_DISABLED

This patch proposes to remove the IRQF_DISABLED flag from m68k architecture
code. It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
---
 arch/m68k/include/asm/floppy.h         | 2 +-
 arch/m68k/include/asm/sun3xflop.h      | 2 +-
 arch/m68k/platform/68000/timers.c      | 2 +-
 arch/m68k/platform/68360/config.c      | 2 +-
 arch/m68k/platform/coldfire/pit.c      | 2 +-
 arch/m68k/platform/coldfire/sltimers.c | 4 ++--
 arch/m68k/platform/coldfire/timers.c   | 4 ++--
 7 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/m68k/include/asm/floppy.h b/arch/m68k/include/asm/floppy.h
index 697d50393dd0..47365b1ccbec 100644
--- a/arch/m68k/include/asm/floppy.h
+++ b/arch/m68k/include/asm/floppy.h
@@ -85,7 +85,7 @@ static int fd_request_irq(void)
 {
 	if(MACH_IS_Q40)
 		return request_irq(FLOPPY_IRQ, floppy_hardint,
-				   IRQF_DISABLED, "floppy", floppy_hardint);
+				   0, "floppy", floppy_hardint);
 	else if(MACH_IS_SUN3X)
 		return sun3xflop_request_irq();
 	return -ENXIO;
diff --git a/arch/m68k/include/asm/sun3xflop.h b/arch/m68k/include/asm/sun3xflop.h
index 95231e2f9d64..a02ea3a7bb20 100644
--- a/arch/m68k/include/asm/sun3xflop.h
+++ b/arch/m68k/include/asm/sun3xflop.h
@@ -207,7 +207,7 @@ static int sun3xflop_request_irq(void)
 	if(!once) {
 		once = 1;
 		error = request_irq(FLOPPY_IRQ, sun3xflop_hardint,
-				    IRQF_DISABLED, "floppy", NULL);
+				    0, "floppy", NULL);
 		return ((error == 0) ? 0 : -1);
 	} else return 0;
 }
diff --git a/arch/m68k/platform/68000/timers.c b/arch/m68k/platform/68000/timers.c
index ec30acbfe6db..99a98698bc95 100644
--- a/arch/m68k/platform/68000/timers.c
+++ b/arch/m68k/platform/68000/timers.c
@@ -70,7 +70,7 @@ static irqreturn_t hw_tick(int irq, void *dummy)
 
 static struct irqaction m68328_timer_irq = {
 	.name	 = "timer",
-	.flags	 = IRQF_DISABLED | IRQF_TIMER,
+	.flags	 = IRQF_TIMER,
 	.handler = hw_tick,
 };
 
diff --git a/arch/m68k/platform/68360/config.c b/arch/m68k/platform/68360/config.c
index 9877cefad1e7..fae263eb332e 100644
--- a/arch/m68k/platform/68360/config.c
+++ b/arch/m68k/platform/68360/config.c
@@ -58,7 +58,7 @@ static irqreturn_t hw_tick(int irq, void *dummy)
 
 static struct irqaction m68360_timer_irq = {
 	.name	 = "timer",
-	.flags	 = IRQF_DISABLED | IRQF_TIMER,
+	.flags	 = IRQF_TIMER,
 	.handler = hw_tick,
 };
 
diff --git a/arch/m68k/platform/coldfire/pit.c b/arch/m68k/platform/coldfire/pit.c
index e8f3b97b0f77..493b3111d4c1 100644
--- a/arch/m68k/platform/coldfire/pit.c
+++ b/arch/m68k/platform/coldfire/pit.c
@@ -118,7 +118,7 @@ static irqreturn_t pit_tick(int irq, void *dummy)
 
 static struct irqaction pit_irq = {
 	.name	 = "timer",
-	.flags	 = IRQF_DISABLED | IRQF_TIMER,
+	.flags	 = IRQF_TIMER,
 	.handler = pit_tick,
 };
 
diff --git a/arch/m68k/platform/coldfire/sltimers.c b/arch/m68k/platform/coldfire/sltimers.c
index bb5a25ada848..831a08cf6f40 100644
--- a/arch/m68k/platform/coldfire/sltimers.c
+++ b/arch/m68k/platform/coldfire/sltimers.c
@@ -51,7 +51,7 @@ irqreturn_t mcfslt_profile_tick(int irq, void *dummy)
 
 static struct irqaction mcfslt_profile_irq = {
 	.name	 = "profile timer",
-	.flags	 = IRQF_DISABLED | IRQF_TIMER,
+	.flags	 = IRQF_TIMER,
 	.handler = mcfslt_profile_tick,
 };
 
@@ -93,7 +93,7 @@ static irqreturn_t mcfslt_tick(int irq, void *dummy)
 
 static struct irqaction mcfslt_timer_irq = {
 	.name	 = "timer",
-	.flags	 = IRQF_DISABLED | IRQF_TIMER,
+	.flags	 = IRQF_TIMER,
 	.handler = mcfslt_tick,
 };
 
diff --git a/arch/m68k/platform/coldfire/timers.c b/arch/m68k/platform/coldfire/timers.c
index d06068e45764..cd496a20fcc7 100644
--- a/arch/m68k/platform/coldfire/timers.c
+++ b/arch/m68k/platform/coldfire/timers.c
@@ -83,7 +83,7 @@ static irqreturn_t mcftmr_tick(int irq, void *dummy)
 
 static struct irqaction mcftmr_timer_irq = {
 	.name	 = "timer",
-	.flags	 = IRQF_DISABLED | IRQF_TIMER,
+	.flags	 = IRQF_TIMER,
 	.handler = mcftmr_tick,
 };
 
@@ -171,7 +171,7 @@ irqreturn_t coldfire_profile_tick(int irq, void *dummy)
 
 static struct irqaction coldfire_profile_irq = {
 	.name	 = "profile timer",
-	.flags	 = IRQF_DISABLED | IRQF_TIMER,
+	.flags	 = IRQF_TIMER,
 	.handler = coldfire_profile_tick,
 };
 
-- 
cgit 


From e0f17c75d9352c38926da1b4d8dbefc2d9942006 Mon Sep 17 00:00:00 2001
From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Sun, 22 Sep 2013 20:44:12 +0200
Subject: ALSA: Fix assignment of 0/1 to bool variables

Convert 0 to false and 1 to true when assigning values to bool
variables. Inspired by commit 3db1cd5c05f35fb43eb134df6f321de4e63141f2.

The simplified semantic patch that find this problem is as
follows (http://coccinelle.lip6.fr/):

@@
bool b;
@@
(
-b = 0
+b = false
|
-b = 1
+b = true
)

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/azt3328.c | 14 +++++++-------
 sound/usb/mixer.c   |  4 ++--
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/sound/pci/azt3328.c b/sound/pci/azt3328.c
index c8e121611593..1aef7128f7ca 100644
--- a/sound/pci/azt3328.c
+++ b/sound/pci/azt3328.c
@@ -715,14 +715,14 @@ snd_azf3328_mixer_ac97_read(struct snd_ac97 *ac97, unsigned short reg_ac97)
 	const struct snd_azf3328 *chip = ac97->private_data;
 	unsigned short reg_azf = snd_azf3328_mixer_ac97_map_reg_idx(reg_ac97);
 	unsigned short reg_val = 0;
-	bool unsupported = 0;
+	bool unsupported = false;
 
 	snd_azf3328_dbgmixer(
 		"snd_azf3328_mixer_ac97_read reg_ac97 %u\n",
 			reg_ac97
 	);
 	if (reg_azf & AZF_AC97_REG_UNSUPPORTED)
-		unsupported = 1;
+		unsupported = true;
 	else {
 		if (reg_azf & AZF_AC97_REG_REAL_IO_READ)
 			reg_val = snd_azf3328_mixer_inw(chip,
@@ -759,7 +759,7 @@ snd_azf3328_mixer_ac97_read(struct snd_ac97 *ac97, unsigned short reg_ac97)
 				reg_val = azf_emulated_ac97_vendor_id & 0xffff;
 				break;
 			default:
-				unsupported = 1;
+				unsupported = true;
 				break;
 			}
 		}
@@ -776,14 +776,14 @@ snd_azf3328_mixer_ac97_write(struct snd_ac97 *ac97,
 {
 	const struct snd_azf3328 *chip = ac97->private_data;
 	unsigned short reg_azf = snd_azf3328_mixer_ac97_map_reg_idx(reg_ac97);
-	bool unsupported = 0;
+	bool unsupported = false;
 
 	snd_azf3328_dbgmixer(
 		"snd_azf3328_mixer_ac97_write reg_ac97 %u val %u\n",
 			reg_ac97, val
 	);
 	if (reg_azf & AZF_AC97_REG_UNSUPPORTED)
-		unsupported = 1;
+		unsupported = true;
 	else {
 		if (reg_azf & AZF_AC97_REG_REAL_IO_WRITE)
 			snd_azf3328_mixer_outw(
@@ -808,7 +808,7 @@ snd_azf3328_mixer_ac97_write(struct snd_ac97 *ac97,
 				 */
 				break;
 			default:
-				unsupported = 1;
+				unsupported = true;
 				break;
 			}
 		}
@@ -1559,7 +1559,7 @@ snd_azf3328_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 	struct snd_azf3328_codec_data *codec = runtime->private_data;
 	int result = 0;
 	u16 flags1;
-	bool previously_muted = 0;
+	bool previously_muted = false;
 	bool is_main_mixer_playback_codec = (AZF_CODEC_PLAYBACK == codec->type);
 
 	snd_azf3328_dbgcalls("snd_azf3328_pcm_trigger cmd %d\n", cmd);
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 95558ef4a7a0..44b0ba4feab3 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -1151,14 +1151,14 @@ static void check_no_speaker_on_headset(struct snd_kcontrol *kctl,
 	const char *names_to_check[] = {
 		"Headset", "headset", "Headphone", "headphone", NULL};
 	const char **s;
-	bool found = 0;
+	bool found = false;
 
 	if (strcmp("Speaker", kctl->id.name))
 		return;
 
 	for (s = names_to_check; *s; s++)
 		if (strstr(card->shortname, *s)) {
-			found = 1;
+			found = true;
 			break;
 		}
 
-- 
cgit 


From 976b6c064a957445eb0573b270f2d0282630e9b9 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Tue, 24 Sep 2013 15:51:58 -0400
Subject: ALSA: improve buffer size computations for USB PCM audio

This patch changes the way URBs are allocated and their sizes are
determined for PCM playback in the snd-usb-audio driver.  Currently
the driver allocates too few URBs for endpoints that don't use
implicit sync, making underruns more likely to occur.  This may be a
holdover from before I/O delays could be measured accurately; in any
case, it is no longer necessary.

The patch allocates as many URBs as possible, subject to four
limitations:

	The total number of URBs for the endpoint is not allowed to
	exceed MAX_URBS (which the patch increases from 8 to 12).

	The total number of packets per URB is not allowed to exceed
	MAX_PACKS (or MAX_PACKS_HS for high-speed devices), which is
	decreased from 20 to 6.

	The total duration of queued data is not allowed to exceed
	MAX_QUEUE, which is decreased from 24 ms to 18 ms.

	The total number of ALSA frames in the output queue is not
	allowed to exceed the ALSA buffer size.

The last requirement is the hardest to implement.  Currently the
number of URBs needed to fill a buffer cannot be determined in
advance, because a buffer contains a fixed number of frames whereas
the number of frames in an URB varies to match shifts in the device's
clock rate.  To solve this problem, the patch changes the logic for
deciding how many packets an URB should contain.  Rather than using as
many as possible without exceeding an ALSA period boundary, now the
driver uses only as many packets as needed to transfer a predetermined
number of frames.  As a result, unless the device's clock has an
exceedingly variable rate, the number of URBs making up each period
(and hence each buffer) will remain constant.

The overall effect of the patch is that playback works better in
low-latency settings.  The user can still specify values for
frames/period and periods/buffer that exceed the capabilities of the
hardware, of course.  But for values that are within those
capabilities, the performance will be improved.  For example, testing
shows that a high-speed device can handle 32 frames/period and 3
periods/buffer at 48 KHz, whereas the current driver starts to get
glitchy at 64 frames/period and 2 periods/buffer.

A side effect of these changes is that the "nrpacks" module parameter
is no longer used.  The patch removes it.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Clemens Ladisch <clemens@ladisch.de>
Tested-by: Daniel Mack <zonque@gmail.com>
Tested-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/card.c     |   8 ----
 sound/usb/card.h     |  10 +++--
 sound/usb/endpoint.c | 106 +++++++++++++++++++++++++++++----------------------
 sound/usb/endpoint.h |   2 +
 sound/usb/pcm.c      |  14 ++++++-
 sound/usb/usbaudio.h |   1 -
 6 files changed, 82 insertions(+), 59 deletions(-)

diff --git a/sound/usb/card.c b/sound/usb/card.c
index 64952e2d3ed1..d1f54dfe41d5 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -79,7 +79,6 @@ static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;/* Enable this card *
 /* Vendor/product IDs for this card */
 static int vid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 };
 static int pid[SNDRV_CARDS] = { [0 ... (SNDRV_CARDS-1)] = -1 };
-static int nrpacks = 8;		/* max. number of packets per urb */
 static int device_setup[SNDRV_CARDS]; /* device parameter for this card */
 static bool ignore_ctl_error;
 static bool autoclock = true;
@@ -94,8 +93,6 @@ module_param_array(vid, int, NULL, 0444);
 MODULE_PARM_DESC(vid, "Vendor ID for the USB audio device.");
 module_param_array(pid, int, NULL, 0444);
 MODULE_PARM_DESC(pid, "Product ID for the USB audio device.");
-module_param(nrpacks, int, 0644);
-MODULE_PARM_DESC(nrpacks, "Max. number of packets per URB.");
 module_param_array(device_setup, int, NULL, 0444);
 MODULE_PARM_DESC(device_setup, "Specific device setup (if needed).");
 module_param(ignore_ctl_error, bool, 0444);
@@ -374,7 +371,6 @@ static int snd_usb_audio_create(struct usb_device *dev, int idx,
 	chip->dev = dev;
 	chip->card = card;
 	chip->setup = device_setup[idx];
-	chip->nrpacks = nrpacks;
 	chip->autoclock = autoclock;
 	chip->probing = 1;
 
@@ -756,10 +752,6 @@ static struct usb_driver usb_audio_driver = {
 
 static int __init snd_usb_audio_init(void)
 {
-	if (nrpacks < 1 || nrpacks > MAX_PACKS) {
-		printk(KERN_WARNING "invalid nrpacks value.\n");
-		return -EINVAL;
-	}
 	return usb_register(&usb_audio_driver);
 }
 
diff --git a/sound/usb/card.h b/sound/usb/card.h
index 5ecacaa90b53..ca98a9b915c9 100644
--- a/sound/usb/card.h
+++ b/sound/usb/card.h
@@ -2,11 +2,11 @@
 #define __USBAUDIO_CARD_H
 
 #define MAX_NR_RATES	1024
-#define MAX_PACKS	20
+#define MAX_PACKS	6		/* per URB */
 #define MAX_PACKS_HS	(MAX_PACKS * 8)	/* in high speed mode */
-#define MAX_URBS	8
+#define MAX_URBS	12
 #define SYNC_URBS	4	/* always four urbs for sync */
-#define MAX_QUEUE	24	/* try not to exceed this queue length, in ms */
+#define MAX_QUEUE	18	/* try not to exceed this queue length, in ms */
 
 struct audioformat {
 	struct list_head list;
@@ -87,6 +87,7 @@ struct snd_usb_endpoint {
 	unsigned int phase;		/* phase accumulator */
 	unsigned int maxpacksize;	/* max packet size in bytes */
 	unsigned int maxframesize;      /* max packet size in frames */
+	unsigned int max_urb_frames;	/* max URB size in frames */
 	unsigned int curpacksize;	/* current packet size in bytes (for capture) */
 	unsigned int curframesize;      /* current packet size in frames (for capture) */
 	unsigned int syncmaxsize;	/* sync endpoint packet size */
@@ -116,6 +117,8 @@ struct snd_usb_substream {
 	unsigned int channels_max;	/* max channels in the all audiofmts */
 	unsigned int cur_rate;		/* current rate (for hw_params callback) */
 	unsigned int period_bytes;	/* current period bytes (for hw_params callback) */
+	unsigned int period_frames;	/* current frames per period */
+	unsigned int buffer_periods;	/* current periods per buffer */
 	unsigned int altset_idx;     /* USB data format: index of alternate setting */
 	unsigned int txfr_quirk:1;	/* allow sub-frame alignment */
 	unsigned int fmt_type;		/* USB audio format type (1-3) */
@@ -125,6 +128,7 @@ struct snd_usb_substream {
 
 	unsigned int hwptr_done;	/* processed byte position in the buffer */
 	unsigned int transfer_done;		/* processed frames since last period update */
+	unsigned int frame_limit;	/* limits number of packets in URB */
 
 	/* data and sync endpoints for this stream */
 	unsigned int ep_num;		/* the endpoint number */
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index 93e970f2b3c0..21dc6422d747 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -574,11 +574,14 @@ static int data_ep_set_params(struct snd_usb_endpoint *ep,
 			      snd_pcm_format_t pcm_format,
 			      unsigned int channels,
 			      unsigned int period_bytes,
+			      unsigned int frames_per_period,
+			      unsigned int periods_per_buffer,
 			      struct audioformat *fmt,
 			      struct snd_usb_endpoint *sync_ep)
 {
-	unsigned int maxsize, i, urb_packs, total_packs, packs_per_ms;
-	int is_playback = usb_pipeout(ep->pipe);
+	unsigned int maxsize, minsize, packs_per_ms, max_packs_per_urb;
+	unsigned int max_packs_per_period, urbs_per_period, urb_packs;
+	unsigned int max_urbs, i;
 	int frame_bits = snd_pcm_format_physical_width(pcm_format) * channels;
 
 	if (pcm_format == SNDRV_PCM_FORMAT_DSD_U16_LE && fmt->dsd_dop) {
@@ -611,58 +614,67 @@ static int data_ep_set_params(struct snd_usb_endpoint *ep,
 	else
 		ep->curpacksize = maxsize;
 
-	if (snd_usb_get_speed(ep->chip->dev) != USB_SPEED_FULL)
+	if (snd_usb_get_speed(ep->chip->dev) != USB_SPEED_FULL) {
 		packs_per_ms = 8 >> ep->datainterval;
-	else
-		packs_per_ms = 1;
-
-	if (is_playback && !snd_usb_endpoint_implicit_feedback_sink(ep)) {
-		urb_packs = max(ep->chip->nrpacks, 1);
-		urb_packs = min(urb_packs, (unsigned int) MAX_PACKS);
+		max_packs_per_urb = MAX_PACKS_HS;
 	} else {
-		urb_packs = 1;
+		packs_per_ms = 1;
+		max_packs_per_urb = MAX_PACKS;
 	}
+	if (sync_ep && !snd_usb_endpoint_implicit_feedback_sink(ep))
+		max_packs_per_urb = min(max_packs_per_urb,
+					1U << sync_ep->syncinterval);
+	max_packs_per_urb = max(1u, max_packs_per_urb >> ep->datainterval);
 
-	urb_packs *= packs_per_ms;
+	/*
+	 * Capture endpoints need to use small URBs because there's no way
+	 * to tell in advance where the next period will end, and we don't
+	 * want the next URB to complete much after the period ends.
+	 *
+	 * Playback endpoints with implicit sync much use the same parameters
+	 * as their corresponding capture endpoint.
+	 */
+	if (usb_pipein(ep->pipe) ||
+			snd_usb_endpoint_implicit_feedback_sink(ep)) {
 
-	if (sync_ep && !snd_usb_endpoint_implicit_feedback_sink(ep))
-		urb_packs = min(urb_packs, 1U << sync_ep->syncinterval);
+		/* make capture URBs <= 1 ms and smaller than a period */
+		urb_packs = min(max_packs_per_urb, packs_per_ms);
+		while (urb_packs > 1 && urb_packs * maxsize >= period_bytes)
+			urb_packs >>= 1;
+		ep->nurbs = MAX_URBS;
 
-	/* decide how many packets to be used */
-	if (is_playback && !snd_usb_endpoint_implicit_feedback_sink(ep)) {
-		unsigned int minsize, maxpacks;
+	/*
+	 * Playback endpoints without implicit sync are adjusted so that
+	 * a period fits as evenly as possible in the smallest number of
+	 * URBs.  The total number of URBs is adjusted to the size of the
+	 * ALSA buffer, subject to the MAX_URBS and MAX_QUEUE limits.
+	 */
+	} else {
 		/* determine how small a packet can be */
-		minsize = (ep->freqn >> (16 - ep->datainterval))
-			  * (frame_bits >> 3);
+		minsize = (ep->freqn >> (16 - ep->datainterval)) *
+				(frame_bits >> 3);
 		/* with sync from device, assume it can be 12% lower */
 		if (sync_ep)
 			minsize -= minsize >> 3;
 		minsize = max(minsize, 1u);
-		total_packs = (period_bytes + minsize - 1) / minsize;
-		/* we need at least two URBs for queueing */
-		if (total_packs < 2) {
-			total_packs = 2;
-		} else {
-			/* and we don't want too long a queue either */
-			maxpacks = max(MAX_QUEUE * packs_per_ms, urb_packs * 2);
-			total_packs = min(total_packs, maxpacks);
-		}
-	} else {
-		while (urb_packs > 1 && urb_packs * maxsize >= period_bytes)
-			urb_packs >>= 1;
-		total_packs = MAX_URBS * urb_packs;
-	}
 
-	ep->nurbs = (total_packs + urb_packs - 1) / urb_packs;
-	if (ep->nurbs > MAX_URBS) {
-		/* too much... */
-		ep->nurbs = MAX_URBS;
-		total_packs = MAX_URBS * urb_packs;
-	} else if (ep->nurbs < 2) {
-		/* too little - we need at least two packets
-		 * to ensure contiguous playback/capture
-		 */
-		ep->nurbs = 2;
+		/* how many packets will contain an entire ALSA period? */
+		max_packs_per_period = DIV_ROUND_UP(period_bytes, minsize);
+
+		/* how many URBs will contain a period? */
+		urbs_per_period = DIV_ROUND_UP(max_packs_per_period,
+				max_packs_per_urb);
+		/* how many packets are needed in each URB? */
+		urb_packs = DIV_ROUND_UP(max_packs_per_period, urbs_per_period);
+
+		/* limit the number of frames in a single URB */
+		ep->max_urb_frames = DIV_ROUND_UP(frames_per_period,
+					urbs_per_period);
+
+		/* try to use enough URBs to contain an entire ALSA buffer */
+		max_urbs = min((unsigned) MAX_URBS,
+				MAX_QUEUE * packs_per_ms / urb_packs);
+		ep->nurbs = min(max_urbs, urbs_per_period * periods_per_buffer);
 	}
 
 	/* allocate and initialize data urbs */
@@ -670,8 +682,7 @@ static int data_ep_set_params(struct snd_usb_endpoint *ep,
 		struct snd_urb_ctx *u = &ep->urb[i];
 		u->index = i;
 		u->ep = ep;
-		u->packets = (i + 1) * total_packs / ep->nurbs
-			- i * total_packs / ep->nurbs;
+		u->packets = urb_packs;
 		u->buffer_size = maxsize * u->packets;
 
 		if (fmt->fmt_type == UAC_FORMAT_TYPE_II)
@@ -748,6 +759,8 @@ out_of_memory:
  * @pcm_format: the audio fomat.
  * @channels: the number of audio channels.
  * @period_bytes: the number of bytes in one alsa period.
+ * @period_frames: the number of frames in one alsa period.
+ * @buffer_periods: the number of periods in one alsa buffer.
  * @rate: the frame rate.
  * @fmt: the USB audio format information
  * @sync_ep: the sync endpoint to use, if any
@@ -760,6 +773,8 @@ int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
 				snd_pcm_format_t pcm_format,
 				unsigned int channels,
 				unsigned int period_bytes,
+				unsigned int period_frames,
+				unsigned int buffer_periods,
 				unsigned int rate,
 				struct audioformat *fmt,
 				struct snd_usb_endpoint *sync_ep)
@@ -793,7 +808,8 @@ int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
 	switch (ep->type) {
 	case  SND_USB_ENDPOINT_TYPE_DATA:
 		err = data_ep_set_params(ep, pcm_format, channels,
-					 period_bytes, fmt, sync_ep);
+					 period_bytes, period_frames,
+					 buffer_periods, fmt, sync_ep);
 		break;
 	case  SND_USB_ENDPOINT_TYPE_SYNC:
 		err = sync_ep_set_params(ep, fmt);
diff --git a/sound/usb/endpoint.h b/sound/usb/endpoint.h
index 2287adf5ca59..3bd02f0d226c 100644
--- a/sound/usb/endpoint.h
+++ b/sound/usb/endpoint.h
@@ -12,6 +12,8 @@ int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
 				snd_pcm_format_t pcm_format,
 				unsigned int channels,
 				unsigned int period_bytes,
+				unsigned int period_frames,
+				unsigned int buffer_periods,
 				unsigned int rate,
 				struct audioformat *fmt,
 				struct snd_usb_endpoint *sync_ep);
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index b375d58871e7..19e79953f2e3 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -595,6 +595,7 @@ static int configure_sync_endpoint(struct snd_usb_substream *subs)
 						   subs->pcm_format,
 						   subs->channels,
 						   subs->period_bytes,
+						   0, 0,
 						   subs->cur_rate,
 						   subs->cur_audiofmt,
 						   NULL);
@@ -631,6 +632,7 @@ static int configure_sync_endpoint(struct snd_usb_substream *subs)
 					  subs->pcm_format,
 					  sync_fp->channels,
 					  sync_period_bytes,
+					  0, 0,
 					  subs->cur_rate,
 					  sync_fp,
 					  NULL);
@@ -653,6 +655,8 @@ static int configure_endpoint(struct snd_usb_substream *subs)
 					  subs->pcm_format,
 					  subs->channels,
 					  subs->period_bytes,
+					  subs->period_frames,
+					  subs->buffer_periods,
 					  subs->cur_rate,
 					  subs->cur_audiofmt,
 					  subs->sync_endpoint);
@@ -689,6 +693,8 @@ static int snd_usb_hw_params(struct snd_pcm_substream *substream,
 
 	subs->pcm_format = params_format(hw_params);
 	subs->period_bytes = params_period_bytes(hw_params);
+	subs->period_frames = params_period_size(hw_params);
+	subs->buffer_periods = params_periods(hw_params);
 	subs->channels = params_channels(hw_params);
 	subs->cur_rate = params_rate(hw_params);
 
@@ -1363,6 +1369,7 @@ static void prepare_playback_urb(struct snd_usb_substream *subs,
 	frames = 0;
 	urb->number_of_packets = 0;
 	spin_lock_irqsave(&subs->lock, flags);
+	subs->frame_limit += ep->max_urb_frames;
 	for (i = 0; i < ctx->packets; i++) {
 		if (ctx->packet_size[i])
 			counts = ctx->packet_size[i];
@@ -1377,6 +1384,7 @@ static void prepare_playback_urb(struct snd_usb_substream *subs,
 		subs->transfer_done += counts;
 		if (subs->transfer_done >= runtime->period_size) {
 			subs->transfer_done -= runtime->period_size;
+			subs->frame_limit = 0;
 			period_elapsed = 1;
 			if (subs->fmt_type == UAC_FORMAT_TYPE_II) {
 				if (subs->transfer_done > 0) {
@@ -1399,8 +1407,10 @@ static void prepare_playback_urb(struct snd_usb_substream *subs,
 				break;
 			}
 		}
-		if (period_elapsed &&
-		    !snd_usb_endpoint_implicit_feedback_sink(subs->data_endpoint)) /* finish at the period boundary */
+		/* finish at the period boundary or after enough frames */
+		if ((period_elapsed ||
+				subs->transfer_done >= subs->frame_limit) &&
+		    !snd_usb_endpoint_implicit_feedback_sink(ep))
 			break;
 	}
 	bytes = frames * ep->stride;
diff --git a/sound/usb/usbaudio.h b/sound/usb/usbaudio.h
index caabe9b3af49..5d2fe0530745 100644
--- a/sound/usb/usbaudio.h
+++ b/sound/usb/usbaudio.h
@@ -55,7 +55,6 @@ struct snd_usb_audio {
 	struct list_head mixer_list;	/* list of mixer interfaces */
 
 	int setup;			/* from the 'device_setup' module param */
-	int nrpacks;			/* from the 'nrpacks' module param */
 	bool autoclock;			/* from the 'autoclock' module param */
 
 	struct usb_host_interface *ctrl_intf;	/* the audio control interface */
-- 
cgit 


From e84841f9ba134d3aa4cad5c16d05712672583c76 Mon Sep 17 00:00:00 2001
From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Date: Sat, 14 Sep 2013 00:35:47 +0900
Subject: ALSA: firewire-lib: use inlune function to calculate frame bytes

Calculating frame bytes can be replaced with inline function in
include/sound/pcm.h.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/firewire/amdtp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index ea995af6d049..4b08b25a4db8 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -268,7 +268,7 @@ static void amdtp_write_s32(struct amdtp_out_stream *s,
 
 	channels = s->pcm_channels;
 	src = (void *)runtime->dma_area +
-			s->pcm_buffer_pointer * (runtime->frame_bits / 8);
+			frames_to_bytes(runtime, s->pcm_buffer_pointer);
 	remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
 	frame_step = s->data_block_quadlets - channels;
 
@@ -294,7 +294,7 @@ static void amdtp_write_s16(struct amdtp_out_stream *s,
 
 	channels = s->pcm_channels;
 	src = (void *)runtime->dma_area +
-			s->pcm_buffer_pointer * (runtime->frame_bits / 8);
+			frames_to_bytes(runtime, s->pcm_buffer_pointer);
 	remaining_frames = runtime->buffer_size - s->pcm_buffer_pointer;
 	frame_step = s->data_block_quadlets - channels;
 
-- 
cgit 


From 28061758dc83df445a05af347b5ce55ccd968c03 Mon Sep 17 00:00:00 2001
From: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Date: Tue, 13 Aug 2013 13:43:26 +0100
Subject: ARM/ARM64: arch_timer: add macros for bits in control register

Add macros to describe the bitfields in the ARM architected timer
control register to make code easy to understand.

Reviewed-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
---
 arch/arm/include/asm/arch_timer.h    |  9 +++++++--
 arch/arm64/include/asm/arch_timer.h  | 12 ++++++++----
 include/clocksource/arm_arch_timer.h |  8 ++++++++
 3 files changed, 23 insertions(+), 6 deletions(-)

diff --git a/arch/arm/include/asm/arch_timer.h b/arch/arm/include/asm/arch_timer.h
index 5665134bfa3e..d57e04de8e8c 100644
--- a/arch/arm/include/asm/arch_timer.h
+++ b/arch/arm/include/asm/arch_timer.h
@@ -93,8 +93,13 @@ static inline void arch_counter_set_user_access(void)
 
 	asm volatile("mrc p15, 0, %0, c14, c1, 0" : "=r" (cntkctl));
 
-	/* disable user access to everything */
-	cntkctl &= ~((3 << 8) | (7 << 0));
+	/* Disable user access to both physical/virtual counters/timers */
+	/* Also disable virtual event stream */
+	cntkctl &= ~(ARCH_TIMER_USR_PT_ACCESS_EN
+			| ARCH_TIMER_USR_VT_ACCESS_EN
+			| ARCH_TIMER_VIRT_EVT_EN
+			| ARCH_TIMER_USR_VCT_ACCESS_EN
+			| ARCH_TIMER_USR_PCT_ACCESS_EN);
 
 	asm volatile("mcr p15, 0, %0, c14, c1, 0" : : "r" (cntkctl));
 }
diff --git a/arch/arm64/include/asm/arch_timer.h b/arch/arm64/include/asm/arch_timer.h
index c9f1d2816c2b..2b9722f42729 100644
--- a/arch/arm64/include/asm/arch_timer.h
+++ b/arch/arm64/include/asm/arch_timer.h
@@ -96,12 +96,16 @@ static inline void arch_counter_set_user_access(void)
 {
 	u32 cntkctl;
 
-	/* Disable user access to the timers and the physical counter. */
 	asm volatile("mrs	%0, cntkctl_el1" : "=r" (cntkctl));
-	cntkctl &= ~((3 << 8) | (1 << 0));
 
-	/* Enable user access to the virtual counter and frequency. */
-	cntkctl |= (1 << 1);
+	/* Disable user access to the timers and the physical counter */
+	cntkctl &= ~(ARCH_TIMER_USR_PT_ACCESS_EN
+			| ARCH_TIMER_USR_VT_ACCESS_EN
+			| ARCH_TIMER_USR_PCT_ACCESS_EN);
+
+	/* Enable user access to the virtual counter */
+	cntkctl |= ARCH_TIMER_USR_VCT_ACCESS_EN;
+
 	asm volatile("msr	cntkctl_el1, %0" : : "r" (cntkctl));
 }
 
diff --git a/include/clocksource/arm_arch_timer.h b/include/clocksource/arm_arch_timer.h
index 93b7f96f9c59..8707dae4cee2 100644
--- a/include/clocksource/arm_arch_timer.h
+++ b/include/clocksource/arm_arch_timer.h
@@ -33,6 +33,14 @@ enum arch_timer_reg {
 #define ARCH_TIMER_MEM_PHYS_ACCESS	2
 #define ARCH_TIMER_MEM_VIRT_ACCESS	3
 
+#define ARCH_TIMER_USR_PCT_ACCESS_EN	(1 << 0) /* physical counter */
+#define ARCH_TIMER_USR_VCT_ACCESS_EN	(1 << 1) /* virtual counter */
+#define ARCH_TIMER_VIRT_EVT_EN		(1 << 2)
+#define ARCH_TIMER_EVT_TRIGGER_SHIFT	(4)
+#define ARCH_TIMER_EVT_TRIGGER_MASK	(0xF << ARCH_TIMER_EVT_TRIGGER_SHIFT)
+#define ARCH_TIMER_USR_VT_ACCESS_EN	(1 << 8) /* virtual timer registers */
+#define ARCH_TIMER_USR_PT_ACCESS_EN	(1 << 9) /* physical timer registers */
+
 #ifdef CONFIG_ARM_ARCH_TIMER
 
 extern u32 arch_timer_get_rate(void);
-- 
cgit 


From f767f7acee328933be4e7936a2115560f44846d5 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 12:08:52 +0530
Subject: backlight: l4f00242t03: Remove redundant spi_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/backlight/l4f00242t03.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/backlight/l4f00242t03.c b/drivers/video/backlight/l4f00242t03.c
index a35a38c709cf..59eebe0b3846 100644
--- a/drivers/video/backlight/l4f00242t03.c
+++ b/drivers/video/backlight/l4f00242t03.c
@@ -244,7 +244,6 @@ static int l4f00242t03_remove(struct spi_device *spi)
 
 	l4f00242t03_lcd_power_set(priv->ld, FB_BLANK_POWERDOWN);
 	lcd_device_unregister(priv->ld);
-	spi_set_drvdata(spi, NULL);
 
 	return 0;
 }
-- 
cgit 


From e9faebc66ec74f1ab7f267d683b45e80faa69763 Mon Sep 17 00:00:00 2001
From: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Date: Tue, 13 Aug 2013 14:30:32 +0100
Subject: ARM: arch_timer: add support to configure and enable event stream

This patch adds support for configuring the event stream frequency
and enabling it.

It also adds the hwcaps definitions to the user to detect this event
stream feature.

Cc: Russell King <linux@arm.linux.org.uk>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
---
 arch/arm/include/asm/arch_timer.h | 27 ++++++++++++++++++++++++---
 arch/arm/include/uapi/asm/hwcap.h |  1 +
 arch/arm/kernel/setup.c           |  1 +
 3 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/arch/arm/include/asm/arch_timer.h b/arch/arm/include/asm/arch_timer.h
index d57e04de8e8c..0704e0cf5571 100644
--- a/arch/arm/include/asm/arch_timer.h
+++ b/arch/arm/include/asm/arch_timer.h
@@ -87,11 +87,21 @@ static inline u64 arch_counter_get_cntvct(void)
 	return cval;
 }
 
-static inline void arch_counter_set_user_access(void)
+static inline u32 arch_timer_get_cntkctl(void)
 {
 	u32 cntkctl;
-
 	asm volatile("mrc p15, 0, %0, c14, c1, 0" : "=r" (cntkctl));
+	return cntkctl;
+}
+
+static inline void arch_timer_set_cntkctl(u32 cntkctl)
+{
+	asm volatile("mcr p15, 0, %0, c14, c1, 0" : : "r" (cntkctl));
+}
+
+static inline void arch_counter_set_user_access(void)
+{
+	u32 cntkctl = arch_timer_get_cntkctl();
 
 	/* Disable user access to both physical/virtual counters/timers */
 	/* Also disable virtual event stream */
@@ -100,9 +110,20 @@ static inline void arch_counter_set_user_access(void)
 			| ARCH_TIMER_VIRT_EVT_EN
 			| ARCH_TIMER_USR_VCT_ACCESS_EN
 			| ARCH_TIMER_USR_PCT_ACCESS_EN);
+	arch_timer_set_cntkctl(cntkctl);
+}
 
-	asm volatile("mcr p15, 0, %0, c14, c1, 0" : : "r" (cntkctl));
+static inline void arch_timer_evtstrm_enable(int divider)
+{
+	u32 cntkctl = arch_timer_get_cntkctl();
+	cntkctl &= ~ARCH_TIMER_EVT_TRIGGER_MASK;
+	/* Set the divider and enable virtual event stream */
+	cntkctl |= (divider << ARCH_TIMER_EVT_TRIGGER_SHIFT)
+			| ARCH_TIMER_VIRT_EVT_EN;
+	arch_timer_set_cntkctl(cntkctl);
+	elf_hwcap |= HWCAP_EVTSTRM;
 }
+
 #endif
 
 #endif
diff --git a/arch/arm/include/uapi/asm/hwcap.h b/arch/arm/include/uapi/asm/hwcap.h
index 6d34d080372a..7dcc10d67253 100644
--- a/arch/arm/include/uapi/asm/hwcap.h
+++ b/arch/arm/include/uapi/asm/hwcap.h
@@ -26,5 +26,6 @@
 #define HWCAP_VFPD32	(1 << 19)	/* set if VFP has 32 regs (not 16) */
 #define HWCAP_IDIV	(HWCAP_IDIVA | HWCAP_IDIVT)
 #define HWCAP_LPAE	(1 << 20)
+#define HWCAP_EVTSTRM	(1 << 21)
 
 #endif /* _UAPI__ASMARM_HWCAP_H */
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 0e1e2b3afa45..5d65438685d8 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -975,6 +975,7 @@ static const char *hwcap_str[] = {
 	"idivt",
 	"vfpd32",
 	"lpae",
+	"evtstrm",
 	NULL
 };
 
-- 
cgit 


From d24c815b74ec5cdb57f01068f5977f2aebe9f168 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 12:08:53 +0530
Subject: backlight: tosa: Remove redundant spi_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/backlight/tosa_lcd.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/video/backlight/tosa_lcd.c b/drivers/video/backlight/tosa_lcd.c
index bf081573e5b5..be5d636764bf 100644
--- a/drivers/video/backlight/tosa_lcd.c
+++ b/drivers/video/backlight/tosa_lcd.c
@@ -198,7 +198,7 @@ static int tosa_lcd_probe(struct spi_device *spi)
 	ret = devm_gpio_request_one(&spi->dev, TOSA_GPIO_TG_ON,
 				GPIOF_OUT_INIT_LOW, "tg #pwr");
 	if (ret < 0)
-		goto err_gpio_tg;
+		return ret;
 
 	mdelay(60);
 
@@ -219,8 +219,6 @@ static int tosa_lcd_probe(struct spi_device *spi)
 
 err_register:
 	tosa_lcd_tg_off(data);
-err_gpio_tg:
-	spi_set_drvdata(spi, NULL);
 	return ret;
 }
 
@@ -235,8 +233,6 @@ static int tosa_lcd_remove(struct spi_device *spi)
 
 	tosa_lcd_tg_off(data);
 
-	spi_set_drvdata(spi, NULL);
-
 	return 0;
 }
 
-- 
cgit 


From 46efe547aca8498d51b64460c02366ae4032ca32 Mon Sep 17 00:00:00 2001
From: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Date: Tue, 13 Aug 2013 15:57:53 +0100
Subject: ARM64: arch_timer: add support to configure and enable event stream

This patch adds support for configuring the event stream frequency
and enabling it.

It also adds the hwcaps as well as compat-specific definitions to
the user to detect this event stream feature.

Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
---
 arch/arm64/include/asm/arch_timer.h | 32 +++++++++++++++++++++++++++++---
 arch/arm64/include/asm/hwcap.h      | 11 ++++++-----
 arch/arm64/include/uapi/asm/hwcap.h |  1 +
 arch/arm64/kernel/setup.c           | 11 +++++++++++
 4 files changed, 47 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/include/asm/arch_timer.h b/arch/arm64/include/asm/arch_timer.h
index 2b9722f42729..9400596a0f39 100644
--- a/arch/arm64/include/asm/arch_timer.h
+++ b/arch/arm64/include/asm/arch_timer.h
@@ -92,21 +92,47 @@ static inline u32 arch_timer_get_cntfrq(void)
 	return val;
 }
 
-static inline void arch_counter_set_user_access(void)
+static inline u32 arch_timer_get_cntkctl(void)
 {
 	u32 cntkctl;
-
 	asm volatile("mrs	%0, cntkctl_el1" : "=r" (cntkctl));
+	return cntkctl;
+}
+
+static inline void arch_timer_set_cntkctl(u32 cntkctl)
+{
+	asm volatile("msr	cntkctl_el1, %0" : : "r" (cntkctl));
+}
+
+static inline void arch_counter_set_user_access(void)
+{
+	u32 cntkctl = arch_timer_get_cntkctl();
 
 	/* Disable user access to the timers and the physical counter */
+	/* Also disable virtual event stream */
 	cntkctl &= ~(ARCH_TIMER_USR_PT_ACCESS_EN
 			| ARCH_TIMER_USR_VT_ACCESS_EN
+			| ARCH_TIMER_VIRT_EVT_EN
 			| ARCH_TIMER_USR_PCT_ACCESS_EN);
 
 	/* Enable user access to the virtual counter */
 	cntkctl |= ARCH_TIMER_USR_VCT_ACCESS_EN;
 
-	asm volatile("msr	cntkctl_el1, %0" : : "r" (cntkctl));
+	arch_timer_set_cntkctl(cntkctl);
+}
+
+static inline void arch_timer_evtstrm_enable(int divider)
+{
+	u32 cntkctl = arch_timer_get_cntkctl();
+	cntkctl &= ~ARCH_TIMER_EVT_TRIGGER_MASK;
+	/* Set the divider and enable virtual event stream */
+	cntkctl |= (divider << ARCH_TIMER_EVT_TRIGGER_SHIFT)
+			| ARCH_TIMER_VIRT_EVT_EN;
+	arch_timer_set_cntkctl(cntkctl);
+	elf_hwcap |= HWCAP_EVTSTRM;
+#ifdef CONFIG_COMPAT
+	compat_elf_hwcap |= COMPAT_HWCAP_EVTSTRM;
+#endif
 }
 
 static inline u64 arch_counter_get_cntvct(void)
diff --git a/arch/arm64/include/asm/hwcap.h b/arch/arm64/include/asm/hwcap.h
index e2950b098e76..6cddbb0c9f54 100644
--- a/arch/arm64/include/asm/hwcap.h
+++ b/arch/arm64/include/asm/hwcap.h
@@ -30,6 +30,7 @@
 #define COMPAT_HWCAP_IDIVA	(1 << 17)
 #define COMPAT_HWCAP_IDIVT	(1 << 18)
 #define COMPAT_HWCAP_IDIV	(COMPAT_HWCAP_IDIVA|COMPAT_HWCAP_IDIVT)
+#define COMPAT_HWCAP_EVTSTRM	(1 << 21)
 
 #ifndef __ASSEMBLY__
 /*
@@ -37,11 +38,11 @@
  * instruction set this cpu supports.
  */
 #define ELF_HWCAP		(elf_hwcap)
-#define COMPAT_ELF_HWCAP	(COMPAT_HWCAP_HALF|COMPAT_HWCAP_THUMB|\
-				 COMPAT_HWCAP_FAST_MULT|COMPAT_HWCAP_EDSP|\
-				 COMPAT_HWCAP_TLS|COMPAT_HWCAP_VFP|\
-				 COMPAT_HWCAP_VFPv3|COMPAT_HWCAP_VFPv4|\
-				 COMPAT_HWCAP_NEON|COMPAT_HWCAP_IDIV)
+
+#ifdef CONFIG_COMPAT
+#define COMPAT_ELF_HWCAP	(compat_elf_hwcap)
+extern unsigned int compat_elf_hwcap;
+#endif
 
 extern unsigned long elf_hwcap;
 #endif
diff --git a/arch/arm64/include/uapi/asm/hwcap.h b/arch/arm64/include/uapi/asm/hwcap.h
index eea497578b87..9b12476e9c85 100644
--- a/arch/arm64/include/uapi/asm/hwcap.h
+++ b/arch/arm64/include/uapi/asm/hwcap.h
@@ -21,6 +21,7 @@
  */
 #define HWCAP_FP		(1 << 0)
 #define HWCAP_ASIMD		(1 << 1)
+#define HWCAP_EVTSTRM		(1 << 2)
 
 
 #endif /* _UAPI__ASM_HWCAP_H */
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 055cfb80e05c..d355b7b9710b 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -60,6 +60,16 @@ EXPORT_SYMBOL(processor_id);
 unsigned long elf_hwcap __read_mostly;
 EXPORT_SYMBOL_GPL(elf_hwcap);
 
+#ifdef CONFIG_COMPAT
+#define COMPAT_ELF_HWCAP_DEFAULT	\
+				(COMPAT_HWCAP_HALF|COMPAT_HWCAP_THUMB|\
+				 COMPAT_HWCAP_FAST_MULT|COMPAT_HWCAP_EDSP|\
+				 COMPAT_HWCAP_TLS|COMPAT_HWCAP_VFP|\
+				 COMPAT_HWCAP_VFPv3|COMPAT_HWCAP_VFPv4|\
+				 COMPAT_HWCAP_NEON|COMPAT_HWCAP_IDIV)
+unsigned int compat_elf_hwcap __read_mostly = COMPAT_ELF_HWCAP_DEFAULT;
+#endif
+
 static const char *cpu_name;
 static const char *machine_name;
 phys_addr_t __fdt_pointer __initdata;
@@ -304,6 +314,7 @@ subsys_initcall(topology_init);
 static const char *hwcap_str[] = {
 	"fp",
 	"asimd",
+	"evtstrm",
 	NULL
 };
 
-- 
cgit 


From 037f637767a82907efedda78d3ff405c34020075 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Fri, 23 Aug 2013 15:32:29 +0100
Subject: drivers: clocksource: add support for ARM architected timer event
 stream

The ARM architected timer can generate events (used for waking up
CPUs executing the wfe instruction) at a frequency represented as a
power-of-2 divisor of the clock rate.

An event stream might be used:
- To implement wfe-based timeouts for userspace locking implementations.
- To impose a timeout on a wfe for safeguarding against any programming
  error in case an expected event is not generated.

This patch computes the event stream frequency aiming for a period
of 100us between events. It uses ARM/ARM64 specific backends to configure
and enable the event stream.

Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Will Deacon <will.deacon@arm.com>
[sudeep: moving ARM/ARM64 changes into separate patches
         and adding Kconfig option]
Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
---
 drivers/clocksource/Kconfig          | 15 +++++++++++++++
 drivers/clocksource/arm_arch_timer.c | 15 +++++++++++++++
 include/clocksource/arm_arch_timer.h |  2 ++
 3 files changed, 32 insertions(+)

diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 41c69469ce20..559d80335446 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -74,6 +74,21 @@ config ARM_ARCH_TIMER
 	bool
 	select CLKSRC_OF if OF
 
+config ARM_ARCH_TIMER_EVTSTREAM
+	bool "Support for ARM architected timer event stream generation"
+	default y if ARM_ARCH_TIMER
+	help
+	  This option enables support for event stream generation based on
+	  the ARM architected timer. It is used for waking up CPUs executing
+	  the wfe instruction at a frequency represented as a power-of-2
+	  divisor of the clock rate.
+	  The main use of the event stream is wfe-based timeouts of userspace
+	  locking implementations. It might also be useful for imposing timeout
+	  on wfe to safeguard against any programming errors in case an expected
+	  event is not generated.
+	  This must be disabled for hardware validation purposes to detect any
+	  hardware anomalies of missing events.
+
 config ARM_GLOBAL_TIMER
 	bool
 	select CLKSRC_OF if OF
diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index fbd9ccd5e114..105f8ffa66a8 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -294,6 +294,19 @@ static void __arch_timer_setup(unsigned type,
 	clockevents_config_and_register(clk, arch_timer_rate, 0xf, 0x7fffffff);
 }
 
+static void arch_timer_configure_evtstream(void)
+{
+	int evt_stream_div, pos;
+
+	/* Find the closest power of two to the divisor */
+	evt_stream_div = arch_timer_rate / ARCH_TIMER_EVT_STREAM_FREQ;
+	pos = fls(evt_stream_div);
+	if (pos > 1 && !(evt_stream_div & (1 << (pos - 2))))
+		pos--;
+	/* enable event stream */
+	arch_timer_evtstrm_enable(min(pos, 15));
+}
+
 static int arch_timer_setup(struct clock_event_device *clk)
 {
 	__arch_timer_setup(ARCH_CP15_TIMER, clk);
@@ -307,6 +320,8 @@ static int arch_timer_setup(struct clock_event_device *clk)
 	}
 
 	arch_counter_set_user_access();
+	if (IS_ENABLED(CONFIG_ARM_ARCH_TIMER_EVTSTREAM))
+		arch_timer_configure_evtstream();
 
 	return 0;
 }
diff --git a/include/clocksource/arm_arch_timer.h b/include/clocksource/arm_arch_timer.h
index 8707dae4cee2..6d26b40cbf5d 100644
--- a/include/clocksource/arm_arch_timer.h
+++ b/include/clocksource/arm_arch_timer.h
@@ -41,6 +41,8 @@ enum arch_timer_reg {
 #define ARCH_TIMER_USR_VT_ACCESS_EN	(1 << 8) /* virtual timer registers */
 #define ARCH_TIMER_USR_PT_ACCESS_EN	(1 << 9) /* physical timer registers */
 
+#define ARCH_TIMER_EVT_STREAM_FREQ	10000	/* 100us */
+
 #ifdef CONFIG_ARM_ARCH_TIMER
 
 extern u32 arch_timer_get_rate(void);
-- 
cgit 


From 346e7480f1d4740b3d798da60f83f087ea6488b4 Mon Sep 17 00:00:00 2001
From: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Date: Fri, 23 Aug 2013 15:53:15 +0100
Subject: drivers: clocksource: add CPU PM notifier for ARM architected timer

Few control settings done in architected timer as part of initialisation
can be lost when CPU enters deeper power states. They need to be
restored when the CPU is (warm)reset again.

This patch adds CPU PM notifiers to save the counter control register
when entering low power modes and restore it when CPU exits low power.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
---
 drivers/clocksource/arm_arch_timer.c | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index 105f8ffa66a8..9338f1ad6100 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -13,6 +13,7 @@
 #include <linux/device.h>
 #include <linux/smp.h>
 #include <linux/cpu.h>
+#include <linux/cpu_pm.h>
 #include <linux/clockchips.h>
 #include <linux/interrupt.h>
 #include <linux/of_irq.h>
@@ -475,6 +476,33 @@ static struct notifier_block arch_timer_cpu_nb = {
 	.notifier_call = arch_timer_cpu_notify,
 };
 
+#ifdef CONFIG_CPU_PM
+static unsigned int saved_cntkctl;
+static int arch_timer_cpu_pm_notify(struct notifier_block *self,
+				    unsigned long action, void *hcpu)
+{
+	if (action == CPU_PM_ENTER)
+		saved_cntkctl = arch_timer_get_cntkctl();
+	else if (action == CPU_PM_ENTER_FAILED || action == CPU_PM_EXIT)
+		arch_timer_set_cntkctl(saved_cntkctl);
+	return NOTIFY_OK;
+}
+
+static struct notifier_block arch_timer_cpu_pm_notifier = {
+	.notifier_call = arch_timer_cpu_pm_notify,
+};
+
+static int __init arch_timer_cpu_pm_init(void)
+{
+	return cpu_pm_register_notifier(&arch_timer_cpu_pm_notifier);
+}
+#else
+static int __init arch_timer_cpu_pm_init(void)
+{
+	return 0;
+}
+#endif
+
 static int __init arch_timer_register(void)
 {
 	int err;
@@ -514,11 +542,17 @@ static int __init arch_timer_register(void)
 	if (err)
 		goto out_free_irq;
 
+	err = arch_timer_cpu_pm_init();
+	if (err)
+		goto out_unreg_notify;
+
 	/* Immediately configure the timer on the boot CPU */
 	arch_timer_setup(this_cpu_ptr(arch_timer_evt));
 
 	return 0;
 
+out_unreg_notify:
+	unregister_cpu_notifier(&arch_timer_cpu_nb);
 out_free_irq:
 	if (arch_timer_use_virtual)
 		free_percpu_irq(arch_timer_ppi[VIRT_PPI], arch_timer_evt);
-- 
cgit 


From ceeddb4e69b2010b0f4f88c9e06dc83d80b49db6 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 25 Sep 2013 16:59:49 +0530
Subject: video: udlfb: Use NULL instead of 0

new_back is a pointer. Use NULL instead of 0.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Bernie Thompson <bernie@plugable.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/udlfb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/udlfb.c b/drivers/video/udlfb.c
index d2e5bc3cf969..025f14e30eed 100644
--- a/drivers/video/udlfb.c
+++ b/drivers/video/udlfb.c
@@ -1166,7 +1166,7 @@ static int dlfb_realloc_framebuffer(struct dlfb_data *dev, struct fb_info *info)
 	int new_len;
 	unsigned char *old_fb = info->screen_base;
 	unsigned char *new_fb;
-	unsigned char *new_back = 0;
+	unsigned char *new_back = NULL;
 
 	pr_warn("Reallocating framebuffer. Addresses will change!\n");
 
-- 
cgit 


From 9aae307c6a484b373892d5bec153a7be7e050868 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 25 Sep 2013 16:59:50 +0530
Subject: video: smscufx: Use NULL instead of 0

'info' is a pointer. Use NULL instead of 0.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Steve Glendinning <steve.glendinning@shawell.net>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/smscufx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/smscufx.c b/drivers/video/smscufx.c
index e188ada2ffd1..d513ed6a49f2 100644
--- a/drivers/video/smscufx.c
+++ b/drivers/video/smscufx.c
@@ -1147,7 +1147,7 @@ static void ufx_free_framebuffer_work(struct work_struct *work)
 
 	fb_destroy_modelist(&info->modelist);
 
-	dev->info = 0;
+	dev->info = NULL;
 
 	/* Assume info structure is freed after this point */
 	framebuffer_release(info);
-- 
cgit 


From 58f3853af969d54170a2935d159f3f788845ae79 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 25 Sep 2013 16:59:51 +0530
Subject: video: da8xx-fb: Staticize reg_context

'reg_context' is local to this file. Make it static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/da8xx-fb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c
index 70fc8e89cf19..0670c85bef44 100644
--- a/drivers/video/da8xx-fb.c
+++ b/drivers/video/da8xx-fb.c
@@ -1548,7 +1548,7 @@ err_pm_runtime_disable:
 }
 
 #ifdef CONFIG_PM
-struct lcdc_context {
+static struct lcdc_context {
 	u32 clk_enable;
 	u32 ctrl;
 	u32 dma_ctrl;
-- 
cgit 


From e72d649cf8fcde95580045233c0ee0cb488d389a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 25 Sep 2013 16:59:52 +0530
Subject: video: aty: Remove redundant break

'break' after return statement is redundant. Remove it.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/aty/atyfb_base.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
index 9b0f12c5c284..28fafbf864a5 100644
--- a/drivers/video/aty/atyfb_base.c
+++ b/drivers/video/aty/atyfb_base.c
@@ -1848,7 +1848,6 @@ static int atyfb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
 
 			return aty_waitforvblank(par, crtc);
 		}
-		break;
 
 #if defined(DEBUG) && defined(CONFIG_FB_ATY_CT)
 	case ATYIO_CLKR:
-- 
cgit 


From a13afa4923a02499ff6295dcf5ef700e4baa755a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 25 Sep 2013 16:59:53 +0530
Subject: video: kyro: Remove redundant break

'break' after return statement is redundant. Remove it.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/kyro/fbdev.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/kyro/fbdev.c b/drivers/video/kyro/fbdev.c
index c82f0400d7d2..79bfb5c38409 100644
--- a/drivers/video/kyro/fbdev.c
+++ b/drivers/video/kyro/fbdev.c
@@ -623,7 +623,6 @@ static int kyrofb_ioctl(struct fb_info *info,
 				"command instead.\n");
 			return -EINVAL;
 		}
-		break;
 	case KYRO_IOCTL_UVSTRIDE:
 		if (copy_to_user(argp, &deviceInfo.ulOverlayUVStride, sizeof(unsigned long)))
 			return -EFAULT;
-- 
cgit 


From b1dfee60c8eb35ba74f94d493864f3a55836b603 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 25 Sep 2013 16:59:54 +0530
Subject: video: uvesafb: Remove redundant NULL check

kfree on a NULL pointer is a no-op.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Michal Januszewski <spock@gentoo.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/uvesafb.c | 19 +++++++------------
 1 file changed, 7 insertions(+), 12 deletions(-)

diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c
index 7aec6f39fdd5..676a4b9379d9 100644
--- a/drivers/video/uvesafb.c
+++ b/drivers/video/uvesafb.c
@@ -233,8 +233,7 @@ out:
 static void uvesafb_free(struct uvesafb_ktask *task)
 {
 	if (task) {
-		if (task->done)
-			kfree(task->done);
+		kfree(task->done);
 		kfree(task);
 	}
 }
@@ -1332,8 +1331,8 @@ setmode:
 				FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
 	info->fix.line_length = mode->bytes_per_scan_line;
 
-out:	if (crtc != NULL)
-		kfree(crtc);
+out:
+	kfree(crtc);
 	uvesafb_free(task);
 
 	return err;
@@ -1793,8 +1792,7 @@ out_mode:
 	fb_destroy_modedb(info->monspecs.modedb);
 	fb_dealloc_cmap(&info->cmap);
 out:
-	if (par->vbe_modes)
-		kfree(par->vbe_modes);
+	kfree(par->vbe_modes);
 
 	framebuffer_release(info);
 	return err;
@@ -1817,12 +1815,9 @@ static int uvesafb_remove(struct platform_device *dev)
 		fb_dealloc_cmap(&info->cmap);
 
 		if (par) {
-			if (par->vbe_modes)
-				kfree(par->vbe_modes);
-			if (par->vbe_state_orig)
-				kfree(par->vbe_state_orig);
-			if (par->vbe_state_saved)
-				kfree(par->vbe_state_saved);
+			kfree(par->vbe_modes);
+			kfree(par->vbe_state_orig);
+			kfree(par->vbe_state_saved);
 		}
 
 		framebuffer_release(info);
-- 
cgit 


From 1ca3bc11aac3c53424e04f542ffc3bc87ebd339b Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 25 Sep 2013 17:32:56 +0530
Subject: video: vfb: Remove incorrect check

'yoffset' is unsigned and hence cannot be less than 0.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/vfb.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/video/vfb.c b/drivers/video/vfb.c
index ee5985efa15c..ea2b523f804f 100644
--- a/drivers/video/vfb.c
+++ b/drivers/video/vfb.c
@@ -390,9 +390,8 @@ static int vfb_pan_display(struct fb_var_screeninfo *var,
 			   struct fb_info *info)
 {
 	if (var->vmode & FB_VMODE_YWRAP) {
-		if (var->yoffset < 0
-		    || var->yoffset >= info->var.yres_virtual
-		    || var->xoffset)
+		if (var->yoffset >= info->var.yres_virtual ||
+		    var->xoffset)
 			return -EINVAL;
 	} else {
 		if (var->xoffset + info->var.xres > info->var.xres_virtual ||
-- 
cgit 


From 8639fac5dae12c76e41456ceb5b72fc22f6888f6 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 25 Sep 2013 17:32:57 +0530
Subject: video: cirrusfb: Remove incorrect checks

'xoffset' and 'yoffset' are unsigned and hence cannot be less than 0.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/cirrusfb.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/video/cirrusfb.c b/drivers/video/cirrusfb.c
index b0167468f5c4..5aab9b9dc210 100644
--- a/drivers/video/cirrusfb.c
+++ b/drivers/video/cirrusfb.c
@@ -595,11 +595,6 @@ static int cirrusfb_check_var(struct fb_var_screeninfo *var,
 		return -EINVAL;
 	}
 
-	if (var->xoffset < 0)
-		var->xoffset = 0;
-	if (var->yoffset < 0)
-		var->yoffset = 0;
-
 	/* truncate xoffset and yoffset to maximum if too high */
 	if (var->xoffset > var->xres_virtual - var->xres)
 		var->xoffset = var->xres_virtual - var->xres - 1;
-- 
cgit 


From cd1979b670fafed0130e0a3d0eddd7bc6a143f79 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 25 Sep 2013 17:32:58 +0530
Subject: video: aty: Remove incorrect checks

'xoffset' and 'yoffset' are unsigned and hence cannot be less than 0.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/aty/radeon_base.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/video/aty/radeon_base.c b/drivers/video/aty/radeon_base.c
index 1e30b2b3e79f..26d80a4486fb 100644
--- a/drivers/video/aty/radeon_base.c
+++ b/drivers/video/aty/radeon_base.c
@@ -819,11 +819,6 @@ static int radeonfb_check_var (struct fb_var_screeninfo *var, struct fb_info *in
 	if (v.xres_virtual < v.xres)
 		v.xres = v.xres_virtual;
 
-	if (v.xoffset < 0)
-                v.xoffset = 0;
-        if (v.yoffset < 0)
-                v.yoffset = 0;
-         
         if (v.xoffset > v.xres_virtual - v.xres)
                 v.xoffset = v.xres_virtual - v.xres - 1;
                         
-- 
cgit 


From bb1d2da7db7fcb25407618d9078091b575490d89 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 25 Sep 2013 17:32:59 +0530
Subject: video: riva: Remove incorrect checks

'xoffset' and 'yoffset' are unsigned and hence cannot be less than 0.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/riva/fbdev.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/video/riva/fbdev.c b/drivers/video/riva/fbdev.c
index 9536715b5a1b..a5514acd2ac6 100644
--- a/drivers/video/riva/fbdev.c
+++ b/drivers/video/riva/fbdev.c
@@ -1185,11 +1185,6 @@ static int rivafb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 	if (rivafb_do_maximize(info, var, nom, den) < 0)
 		return -EINVAL;
 
-	if (var->xoffset < 0)
-		var->xoffset = 0;
-	if (var->yoffset < 0)
-		var->yoffset = 0;
-
 	/* truncate xoffset and yoffset to maximum if too high */
 	if (var->xoffset > var->xres_virtual - var->xres)
 		var->xoffset = var->xres_virtual - var->xres - 1;
-- 
cgit 


From ffefbd7511addbb9811023ce25347dc3e6477d26 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 10 Sep 2013 13:49:02 +0100
Subject: ARM: ux500: Remove PrimeCell IDs from Nomadik I2C DT nodes

Turns out that they're actually not required and the driver probes just
fine without them. The ID is incorrect at the moment anyway. They actually
currently specify the stn8815.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 1c1091eedade..0c1338e36a83 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -559,7 +559,6 @@
 			compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell";
 			reg = <0x80004000 0x1000>;
 			interrupts = <0 21 IRQ_TYPE_LEVEL_HIGH>;
-			arm,primecell-periphid = <0x180024>;
 
 			#address-cells = <1>;
 			#size-cells = <0>;
@@ -572,7 +571,6 @@
 			compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell";
 			reg = <0x80122000 0x1000>;
 			interrupts = <0 22 IRQ_TYPE_LEVEL_HIGH>;
-			arm,primecell-periphid = <0x180024>;
 
 			#address-cells = <1>;
 			#size-cells = <0>;
@@ -585,7 +583,6 @@
 			compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell";
 			reg = <0x80128000 0x1000>;
 			interrupts = <0 55 IRQ_TYPE_LEVEL_HIGH>;
-			arm,primecell-periphid = <0x180024>;
 
 			#address-cells = <1>;
 			#size-cells = <0>;
@@ -598,7 +595,6 @@
 			compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell";
 			reg = <0x80110000 0x1000>;
 			interrupts = <0 12 IRQ_TYPE_LEVEL_HIGH>;
-			arm,primecell-periphid = <0x180024>;
 
 			#address-cells = <1>;
 			#size-cells = <0>;
@@ -611,7 +607,6 @@
 			compatible = "stericsson,db8500-i2c", "st,nomadik-i2c", "arm,primecell";
 			reg = <0x8012a000 0x1000>;
 			interrupts = <0 51 IRQ_TYPE_LEVEL_HIGH>;
-			arm,primecell-periphid = <0x180024>;
 
 			#address-cells = <1>;
 			#size-cells = <0>;
-- 
cgit 


From 8cc3168ccd39258a31d6ca0c609c0461db67d7c5 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 16 Aug 2013 13:40:55 +0200
Subject: ARM: ux500: delete surplus PRCMU regulator defines

The Ux500 boards are layered like this:
ste-snowball.dts includes ste-href.dtsi that includes
ste-dbx500.dtsi.

The dbx500.dtsi defines the PRCMU SoC regulators so the SoC will
probe and you can use ampersand references where need be.

However the HREF common dtsi and these two boards redefine the
same PRCMU SoC regulators with the very same names and properties
for no reason. This is like filling in the same line three
times instead of drawing it once. Just delete the surplus
references and have the PRCMU regulators defines in the SoC
files ste-dbx500.dtsi, this is enough.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-href.dtsi       | 82 -----------------------------------
 arch/arm/boot/dts/ste-hrefv60plus.dts | 82 -----------------------------------
 arch/arm/boot/dts/ste-snowball.dts    | 82 -----------------------------------
 3 files changed, 246 deletions(-)

diff --git a/arch/arm/boot/dts/ste-href.dtsi b/arch/arm/boot/dts/ste-href.dtsi
index 370e03f5e7b2..f88a659aea3b 100644
--- a/arch/arm/boot/dts/ste-href.dtsi
+++ b/arch/arm/boot/dts/ste-href.dtsi
@@ -167,88 +167,6 @@
 		};
 
 		prcmu@80157000 {
-			db8500-prcmu-regulators {
-				db8500_vape_reg: db8500_vape {
-					regulator-name = "db8500-vape";
-				};
-
-				db8500_varm_reg: db8500_varm {
-					regulator-name = "db8500-varm";
-				};
-
-				db8500_vmodem_reg: db8500_vmodem {
-					regulator-name = "db8500-vmodem";
-				};
-
-				db8500_vpll_reg: db8500_vpll {
-					regulator-name = "db8500-vpll";
-				};
-
-				db8500_vsmps1_reg: db8500_vsmps1 {
-					regulator-name = "db8500-vsmps1";
-				};
-
-				db8500_vsmps2_reg: db8500_vsmps2 {
-					regulator-name = "db8500-vsmps2";
-				};
-
-				db8500_vsmps3_reg: db8500_vsmps3 {
-					regulator-name = "db8500-vsmps3";
-				};
-
-				db8500_vrf1_reg: db8500_vrf1 {
-					regulator-name = "db8500-vrf1";
-				};
-
-				db8500_sva_mmdsp_reg: db8500_sva_mmdsp {
-					regulator-name = "db8500-sva-mmdsp";
-				};
-
-				db8500_sva_mmdsp_ret_reg: db8500_sva_mmdsp_ret {
-					regulator-name = "db8500-sva-mmdsp-ret";
-				};
-
-				db8500_sva_pipe_reg: db8500_sva_pipe {
-					regulator-name = "db8500_sva_pipe";
-				};
-
-				db8500_sia_mmdsp_reg: db8500_sia_mmdsp {
-					regulator-name = "db8500_sia_mmdsp";
-				};
-
-				db8500_sia_mmdsp_ret_reg: db8500_sia_mmdsp_ret {
-					regulator-name = "db8500-sia-mmdsp-ret";
-				};
-
-				db8500_sia_pipe_reg: db8500_sia_pipe {
-					regulator-name = "db8500-sia-pipe";
-				};
-
-				db8500_sga_reg: db8500_sga {
-					regulator-name = "db8500-sga";
-				};
-
-				db8500_b2r2_mcde_reg: db8500_b2r2_mcde {
-					regulator-name = "db8500-b2r2-mcde";
-				};
-
-				db8500_esram12_reg: db8500_esram12 {
-					regulator-name = "db8500-esram12";
-				};
-
-				db8500_esram12_ret_reg: db8500_esram12_ret {
-					regulator-name = "db8500-esram12-ret";
-				};
-
-				db8500_esram34_reg: db8500_esram34 {
-					regulator-name = "db8500-esram34";
-				};
-
-				db8500_esram34_ret_reg: db8500_esram34_ret {
-					regulator-name = "db8500-esram34-ret";
-				};
-			};
-
 			ab8500 {
 				ab8500-regulators {
 					ab8500_ldo_aux1_reg: ab8500_ldo_aux1 {
diff --git a/arch/arm/boot/dts/ste-hrefv60plus.dts b/arch/arm/boot/dts/ste-hrefv60plus.dts
index 6e52ebbf113f..0e2be7acd70c 100644
--- a/arch/arm/boot/dts/ste-hrefv60plus.dts
+++ b/arch/arm/boot/dts/ste-hrefv60plus.dts
@@ -76,88 +76,6 @@
 		};
 
 		prcmu@80157000 {
-			db8500-prcmu-regulators {
-				db8500_vape_reg: db8500_vape {
-					regulator-name = "db8500-vape";
-				};
-
-				db8500_varm_reg: db8500_varm {
-					regulator-name = "db8500-varm";
-				};
-
-				db8500_vmodem_reg: db8500_vmodem {
-					regulator-name = "db8500-vmodem";
-				};
-
-				db8500_vpll_reg: db8500_vpll {
-					regulator-name = "db8500-vpll";
-				};
-
-				db8500_vsmps1_reg: db8500_vsmps1 {
-					regulator-name = "db8500-vsmps1";
-				};
-
-				db8500_vsmps2_reg: db8500_vsmps2 {
-					regulator-name = "db8500-vsmps2";
-				};
-
-				db8500_vsmps3_reg: db8500_vsmps3 {
-					regulator-name = "db8500-vsmps3";
-				};
-
-				db8500_vrf1_reg: db8500_vrf1 {
-					regulator-name = "db8500-vrf1";
-				};
-
-				db8500_sva_mmdsp_reg: db8500_sva_mmdsp {
-					regulator-name = "db8500-sva-mmdsp";
-				};
-
-				db8500_sva_mmdsp_ret_reg: db8500_sva_mmdsp_ret {
-					regulator-name = "db8500-sva-mmdsp-ret";
-				};
-
-				db8500_sva_pipe_reg: db8500_sva_pipe {
-					regulator-name = "db8500_sva_pipe";
-				};
-
-				db8500_sia_mmdsp_reg: db8500_sia_mmdsp {
-					regulator-name = "db8500_sia_mmdsp";
-				};
-
-				db8500_sia_mmdsp_ret_reg: db8500_sia_mmdsp_ret {
-					regulator-name = "db8500-sia-mmdsp-ret";
-				};
-
-				db8500_sia_pipe_reg: db8500_sia_pipe {
-					regulator-name = "db8500-sia-pipe";
-				};
-
-				db8500_sga_reg: db8500_sga {
-					regulator-name = "db8500-sga";
-				};
-
-				db8500_b2r2_mcde_reg: db8500_b2r2_mcde {
-					regulator-name = "db8500-b2r2-mcde";
-				};
-
-				db8500_esram12_reg: db8500_esram12 {
-					regulator-name = "db8500-esram12";
-				};
-
-				db8500_esram12_ret_reg: db8500_esram12_ret {
-					regulator-name = "db8500-esram12-ret";
-				};
-
-				db8500_esram34_reg: db8500_esram34 {
-					regulator-name = "db8500-esram34";
-				};
-
-				db8500_esram34_ret_reg: db8500_esram34_ret {
-					regulator-name = "db8500-esram34-ret";
-				};
-			};
-
 			ab8500 {
 				ab8500-regulators {
 					ab8500_ldo_aux1_reg: ab8500_ldo_aux1 {
diff --git a/arch/arm/boot/dts/ste-snowball.dts b/arch/arm/boot/dts/ste-snowball.dts
index f1fc128e249d..acf99ece8499 100644
--- a/arch/arm/boot/dts/ste-snowball.dts
+++ b/arch/arm/boot/dts/ste-snowball.dts
@@ -170,88 +170,6 @@
 		};
 
 		prcmu@80157000 {
-			db8500-prcmu-regulators {
-				db8500_vape_reg: db8500_vape {
-					regulator-name = "db8500-vape";
-				};
-
-				db8500_varm_reg: db8500_varm {
-					regulator-name = "db8500-varm";
-				};
-
-				db8500_vmodem_reg: db8500_vmodem {
-					regulator-name = "db8500-vmodem";
-				};
-
-				db8500_vpll_reg: db8500_vpll {
-					regulator-name = "db8500-vpll";
-				};
-
-				db8500_vsmps1_reg: db8500_vsmps1 {
-					regulator-name = "db8500-vsmps1";
-				};
-
-				db8500_vsmps2_reg: db8500_vsmps2 {
-					regulator-name = "db8500-vsmps2";
-				};
-
-				db8500_vsmps3_reg: db8500_vsmps3 {
-					regulator-name = "db8500-vsmps3";
-				};
-
-				db8500_vrf1_reg: db8500_vrf1 {
-					regulator-name = "db8500-vrf1";
-				};
-
-				db8500_sva_mmdsp_reg: db8500_sva_mmdsp {
-					regulator-name = "db8500-sva-mmdsp";
-				};
-
-				db8500_sva_mmdsp_ret_reg: db8500_sva_mmdsp_ret {
-					regulator-name = "db8500-sva-mmdsp-ret";
-				};
-
-				db8500_sva_pipe_reg: db8500_sva_pipe {
-					regulator-name = "db8500_sva_pipe";
-				};
-
-				db8500_sia_mmdsp_reg: db8500_sia_mmdsp {
-					regulator-name = "db8500_sia_mmdsp";
-				};
-
-				db8500_sia_mmdsp_ret_reg: db8500_sia_mmdsp_ret {
-					regulator-name = "db8500-sia-mmdsp-ret";
-				};
-
-				db8500_sia_pipe_reg: db8500_sia_pipe {
-					regulator-name = "db8500-sia-pipe";
-				};
-
-				db8500_sga_reg: db8500_sga {
-					regulator-name = "db8500-sga";
-				};
-
-				db8500_b2r2_mcde_reg: db8500_b2r2_mcde {
-					regulator-name = "db8500-b2r2-mcde";
-				};
-
-				db8500_esram12_reg: db8500_esram12 {
-					regulator-name = "db8500-esram12";
-				};
-
-				db8500_esram12_ret_reg: db8500_esram12_ret {
-					regulator-name = "db8500-esram12-ret";
-				};
-
-				db8500_esram34_reg: db8500_esram34 {
-					regulator-name = "db8500-esram34";
-				};
-
-				db8500_esram34_ret_reg: db8500_esram34_ret {
-					regulator-name = "db8500-esram34-ret";
-				};
-			};
-
 			thermal@801573c0 {
 				num-trips = <4>;
 
-- 
cgit 


From 7e3fbea959500c490b6453234597d54a05603482 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 16 Aug 2013 13:53:14 +0200
Subject: ARM: ux500: skip redefined regulator names on v60plus board

These regulator rail names are already set in the
ste-href.dtsi file included by this file, this is just redoing
the naming for no benefit, so delete it.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-hrefv60plus.dts | 50 -----------------------------------
 1 file changed, 50 deletions(-)

diff --git a/arch/arm/boot/dts/ste-hrefv60plus.dts b/arch/arm/boot/dts/ste-hrefv60plus.dts
index 0e2be7acd70c..bb3cfc7280e8 100644
--- a/arch/arm/boot/dts/ste-hrefv60plus.dts
+++ b/arch/arm/boot/dts/ste-hrefv60plus.dts
@@ -74,55 +74,5 @@
 
 			status = "okay";
 		};
-
-		prcmu@80157000 {
-			ab8500 {
-				ab8500-regulators {
-					ab8500_ldo_aux1_reg: ab8500_ldo_aux1 {
-						regulator-name = "V-DISPLAY";
-					};
-
-					ab8500_ldo_aux2_reg: ab8500_ldo_aux2 {
-						regulator-name = "V-eMMC1";
-					};
-
-					ab8500_ldo_aux3_reg: ab8500_ldo_aux3 {
-						regulator-name = "V-MMC-SD";
-					};
-
-					ab8500_ldo_intcore_reg: ab8500_ldo_intcore {
-						regulator-name = "V-INTCORE";
-					};
-
-					ab8500_ldo_tvout_reg: ab8500_ldo_tvout {
-						regulator-name = "V-TVOUT";
-					};
-
-					ab8500_ldo_usb_reg: ab8500_ldo_usb {
-						regulator-name = "dummy";
-					};
-
-					ab8500_ldo_audio_reg: ab8500_ldo_audio {
-						regulator-name = "V-AUD";
-					};
-
-					ab8500_ldo_anamic1_reg: ab8500_ldo_anamic1 {
-						regulator-name = "V-AMIC1";
-					};
-
-					ab8500_ldo_anamic2_reg: ab8500_ldo_anamic2 {
-						regulator-name = "V-AMIC2";
-					};
-
-					ab8500_ldo_dmic_reg: ab8500_ldo_dmic {
-						regulator-name = "V-DMIC";
-					};
-
-					ab8500_ldo_ana_reg: ab8500_ldo_ana {
-						regulator-name = "V-CSI/DSI";
-					};
-				};
-			};
-		};
 	};
 };
-- 
cgit 


From 4a6cd43fb7a16ecb08d0cce40b35656c6447c7b8 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 20 Aug 2013 18:40:27 +0200
Subject: dt: dbx5x0: remove mentor,musb binding

The "mentor,musb" binding isn't documented so I was about
to document it.

The node is missing a few properties for configuration like
"multipoint", "dyn_fifo", "num_eps" or "ram_bits". However
I am not sure "missing" is the right word here because some
of those informations might be obtained from the chip itself
but it is not done (yet).

Further the ePARP 2.3.1 says the matching goes from left to
right taking the fist match. Right now there is jus a driver
for "stericsson,db8500-musb" and none for "mentor,musb".
I'm not 100% that it is simply possible to have a generic
since even for DMA we have ifdefs in the driver between
"generic mentor dma" and "ux500 dma" and I mean within musb
and not the dma code.

For that reason (that I am not sure a generic musb binding
is possible and how its binding / required properties will
look like) and the reason that we have here a minor binding
without a driver to look at I suggest to remove that binding.

If the majority of people prefer to keep this binding I'm
curious how the documentation of the binding should look like.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 Documentation/devicetree/bindings/usb/ux500-usb.txt | 2 +-
 arch/arm/boot/dts/ste-dbx5x0.dtsi                   | 3 +--
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/usb/ux500-usb.txt b/Documentation/devicetree/bindings/usb/ux500-usb.txt
index 330d6ec15401..439a41c79afa 100644
--- a/Documentation/devicetree/bindings/usb/ux500-usb.txt
+++ b/Documentation/devicetree/bindings/usb/ux500-usb.txt
@@ -15,7 +15,7 @@ Optional properties:
 Example:
 
 usb_per5@a03e0000 {
-	compatible = "stericsson,db8500-musb", "mentor,musb";
+	compatible = "stericsson,db8500-musb";
 	reg = <0xa03e0000 0x10000>;
 	interrupts = <0 23 0x4>;
 	interrupt-names = "mc";
diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 0c1338e36a83..111d062dc8cc 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -177,8 +177,7 @@
 		};
 
 		usb_per5@a03e0000 {
-			compatible = "stericsson,db8500-musb",
-				"mentor,musb";
+			compatible = "stericsson,db8500-musb";
 			reg = <0xa03e0000 0x10000>;
 			interrupts = <0 23 IRQ_TYPE_LEVEL_HIGH>;
 			interrupt-names = "mc";
-- 
cgit 


From b0f4fe1edf6abbc81500d661f730cebd653a838c Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 6 Jun 2013 11:57:27 +0100
Subject: mfd: dbx500-prcmu: Correctly reorder PRCMU clock identifiers

... as stipulated by the Hardware Specification document.

Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 include/linux/mfd/dbx500-prcmu.h | 135 ++++++++++++++++++++-------------------
 1 file changed, 71 insertions(+), 64 deletions(-)

diff --git a/include/linux/mfd/dbx500-prcmu.h b/include/linux/mfd/dbx500-prcmu.h
index ca0790fba2f5..87667d48602b 100644
--- a/include/linux/mfd/dbx500-prcmu.h
+++ b/include/linux/mfd/dbx500-prcmu.h
@@ -97,70 +97,77 @@ enum prcmu_wakeup_index {
 /*
  * Clock identifiers.
  */
-enum prcmu_clock {
-	PRCMU_SGACLK,
-	PRCMU_UARTCLK,
-	PRCMU_MSP02CLK,
-	PRCMU_MSP1CLK,
-	PRCMU_I2CCLK,
-	PRCMU_SDMMCCLK,
-	PRCMU_SPARE1CLK,
-	PRCMU_SLIMCLK,
-	PRCMU_PER1CLK,
-	PRCMU_PER2CLK,
-	PRCMU_PER3CLK,
-	PRCMU_PER5CLK,
-	PRCMU_PER6CLK,
-	PRCMU_PER7CLK,
-	PRCMU_LCDCLK,
-	PRCMU_BMLCLK,
-	PRCMU_HSITXCLK,
-	PRCMU_HSIRXCLK,
-	PRCMU_HDMICLK,
-	PRCMU_APEATCLK,
-	PRCMU_APETRACECLK,
-	PRCMU_MCDECLK,
-	PRCMU_IPI2CCLK,
-	PRCMU_DSIALTCLK,
-	PRCMU_DMACLK,
-	PRCMU_B2R2CLK,
-	PRCMU_TVCLK,
-	PRCMU_SSPCLK,
-	PRCMU_RNGCLK,
-	PRCMU_UICCCLK,
-	PRCMU_PWMCLK,
-	PRCMU_IRDACLK,
-	PRCMU_IRRCCLK,
-	PRCMU_SIACLK,
-	PRCMU_SVACLK,
-	PRCMU_ACLK,
-	PRCMU_HVACLK, /* Ux540 only */
-	PRCMU_G1CLK, /* Ux540 only */
-	PRCMU_SDMMCHCLK,
-	PRCMU_CAMCLK,
-	PRCMU_BML8580CLK,
-	PRCMU_NUM_REG_CLOCKS,
-	PRCMU_SYSCLK = PRCMU_NUM_REG_CLOCKS,
-	PRCMU_CDCLK,
-	PRCMU_TIMCLK,
-	PRCMU_PLLSOC0,
-	PRCMU_PLLSOC1,
-	PRCMU_ARMSS,
-	PRCMU_PLLDDR,
-	PRCMU_PLLDSI,
-	PRCMU_DSI0CLK,
-	PRCMU_DSI1CLK,
-	PRCMU_DSI0ESCCLK,
-	PRCMU_DSI1ESCCLK,
-	PRCMU_DSI2ESCCLK,
-	/* LCD DSI PLL - Ux540 only */
-	PRCMU_PLLDSI_LCD,
-	PRCMU_DSI0CLK_LCD,
-	PRCMU_DSI1CLK_LCD,
-	PRCMU_DSI0ESCCLK_LCD,
-	PRCMU_DSI1ESCCLK_LCD,
-	PRCMU_DSI2ESCCLK_LCD,
-};
+#define ARMCLK			0
+#define PRCMU_ACLK		1
+#define PRCMU_SVAMMCSPCLK 	2
+#define PRCMU_SDMMCHCLK 	2  /* DBx540 only. */
+#define PRCMU_SIACLK 		3
+#define PRCMU_SIAMMDSPCLK 	3  /* DBx540 only. */
+#define PRCMU_SGACLK 		4
+#define PRCMU_UARTCLK 		5
+#define PRCMU_MSP02CLK 		6
+#define PRCMU_MSP1CLK 		7
+#define PRCMU_I2CCLK 		8
+#define PRCMU_SDMMCCLK 		9
+#define PRCMU_SLIMCLK 		10
+#define PRCMU_CAMCLK 		10 /* DBx540 only. */
+#define PRCMU_PER1CLK 		11
+#define PRCMU_PER2CLK 		12
+#define PRCMU_PER3CLK 		13
+#define PRCMU_PER5CLK 		14
+#define PRCMU_PER6CLK 		15
+#define PRCMU_PER7CLK 		16
+#define PRCMU_LCDCLK 		17
+#define PRCMU_BMLCLK 		18
+#define PRCMU_HSITXCLK 		19
+#define PRCMU_HSIRXCLK 		20
+#define PRCMU_HDMICLK		21
+#define PRCMU_APEATCLK 		22
+#define PRCMU_APETRACECLK 	23
+#define PRCMU_MCDECLK  	 	24
+#define PRCMU_IPI2CCLK  	25
+#define PRCMU_DSIALTCLK  	26
+#define PRCMU_DMACLK  	 	27
+#define PRCMU_B2R2CLK  	 	28
+#define PRCMU_TVCLK  	 	29
+#define SPARE_UNIPROCLK  	30
+#define PRCMU_SSPCLK  	 	31
+#define PRCMU_RNGCLK  	 	32
+#define PRCMU_UICCCLK  	 	33
+#define PRCMU_G1CLK             34 /* DBx540 only. */
+#define PRCMU_HVACLK            35 /* DBx540 only. */
+#define PRCMU_SPARE1CLK	 	36
+#define PRCMU_SPARE2CLK	 	37
+
+#define PRCMU_NUM_REG_CLOCKS  	38
+
+#define PRCMU_RTCCLK  	 	PRCMU_NUM_REG_CLOCKS
+#define PRCMU_SYSCLK  	 	39
+#define PRCMU_CDCLK  	 	40
+#define PRCMU_TIMCLK  	 	41
+#define PRCMU_PLLSOC0  	 	42
+#define PRCMU_PLLSOC1  	 	43
+#define PRCMU_ARMSS  	 	44
+#define PRCMU_PLLDDR  	 	45
+#define PRCMU_BML8580CLK        46
+
+/* DSI Clocks */
+#define PRCMU_PLLDSI  	 	47
+#define PRCMU_DSI0CLK 	  	48
+#define PRCMU_DSI1CLK  	 	49
+#define PRCMU_DSI0ESCCLK  	50
+#define PRCMU_DSI1ESCCLK  	51
+#define PRCMU_DSI2ESCCLK  	52
+
+/* LCD DSI PLL - Ux540 only */
+#define PRCMU_PLLDSI_LCD        53
+#define PRCMU_DSI0CLK_LCD       54
+#define PRCMU_DSI1CLK_LCD       55
+#define PRCMU_DSI0ESCCLK_LCD    56
+#define PRCMU_DSI1ESCCLK_LCD    57
+#define PRCMU_DSI2ESCCLK_LCD    58
+
+#define PRCMU_NUM_CLKS  	59
 
 /**
  * enum prcmu_wdog_id - PRCMU watchdog IDs
-- 
cgit 


From 67f13daadccebf95c04f73db7b78cead844540bd Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 6 Jun 2013 11:50:47 +0100
Subject: mfd: dbx500-prcmu: Move PRCMU numerical clock identifiers into DT
 include file

These are required to request DBx500 PRCMU clocks from Device Tree. The
numbers used are taken directly from the Hardware Specification document.
We're moving them from the DBx500 PRCMU include file into the DT include
directory and referencing them from the former via a #include.

Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 include/dt-bindings/mfd/dbx500-prcmu.h | 84 ++++++++++++++++++++++++++++++++++
 include/linux/mfd/dbx500-prcmu.h       | 77 +------------------------------
 2 files changed, 86 insertions(+), 75 deletions(-)
 create mode 100644 include/dt-bindings/mfd/dbx500-prcmu.h

diff --git a/include/dt-bindings/mfd/dbx500-prcmu.h b/include/dt-bindings/mfd/dbx500-prcmu.h
new file mode 100644
index 000000000000..b7ee8c909908
--- /dev/null
+++ b/include/dt-bindings/mfd/dbx500-prcmu.h
@@ -0,0 +1,84 @@
+/*
+ * This header provides constants for the PRCMU bindings.
+ *
+ */
+
+#ifndef _DT_BINDINGS_MFD_PRCMU_H
+#define _DT_BINDINGS_MFD_PRCMU_H
+
+/*
+ * Clock identifiers.
+ */
+#define ARMCLK			0
+#define PRCMU_ACLK		1
+#define PRCMU_SVAMMCSPCLK 	2
+#define PRCMU_SDMMCHCLK 	2  /* DBx540 only. */
+#define PRCMU_SIACLK 		3
+#define PRCMU_SIAMMDSPCLK 	3  /* DBx540 only. */
+#define PRCMU_SGACLK 		4
+#define PRCMU_UARTCLK 		5
+#define PRCMU_MSP02CLK 		6
+#define PRCMU_MSP1CLK 		7
+#define PRCMU_I2CCLK 		8
+#define PRCMU_SDMMCCLK 		9
+#define PRCMU_SLIMCLK 		10
+#define PRCMU_CAMCLK 		10 /* DBx540 only. */
+#define PRCMU_PER1CLK 		11
+#define PRCMU_PER2CLK 		12
+#define PRCMU_PER3CLK 		13
+#define PRCMU_PER5CLK 		14
+#define PRCMU_PER6CLK 		15
+#define PRCMU_PER7CLK 		16
+#define PRCMU_LCDCLK 		17
+#define PRCMU_BMLCLK 		18
+#define PRCMU_HSITXCLK 		19
+#define PRCMU_HSIRXCLK 		20
+#define PRCMU_HDMICLK		21
+#define PRCMU_APEATCLK 		22
+#define PRCMU_APETRACECLK 	23
+#define PRCMU_MCDECLK  	 	24
+#define PRCMU_IPI2CCLK  	25
+#define PRCMU_DSIALTCLK  	26
+#define PRCMU_DMACLK  	 	27
+#define PRCMU_B2R2CLK  	 	28
+#define PRCMU_TVCLK  	 	29
+#define SPARE_UNIPROCLK  	30
+#define PRCMU_SSPCLK  	 	31
+#define PRCMU_RNGCLK  	 	32
+#define PRCMU_UICCCLK  	 	33
+#define PRCMU_G1CLK             34 /* DBx540 only. */
+#define PRCMU_HVACLK            35 /* DBx540 only. */
+#define PRCMU_SPARE1CLK	 	36
+#define PRCMU_SPARE2CLK	 	37
+
+#define PRCMU_NUM_REG_CLOCKS  	38
+
+#define PRCMU_RTCCLK  	 	PRCMU_NUM_REG_CLOCKS
+#define PRCMU_SYSCLK  	 	39
+#define PRCMU_CDCLK  	 	40
+#define PRCMU_TIMCLK  	 	41
+#define PRCMU_PLLSOC0  	 	42
+#define PRCMU_PLLSOC1  	 	43
+#define PRCMU_ARMSS  	 	44
+#define PRCMU_PLLDDR  	 	45
+#define PRCMU_BML8580CLK        46
+
+/* DSI Clocks */
+#define PRCMU_PLLDSI  	 	47
+#define PRCMU_DSI0CLK 	  	48
+#define PRCMU_DSI1CLK  	 	49
+#define PRCMU_DSI0ESCCLK  	50
+#define PRCMU_DSI1ESCCLK  	51
+#define PRCMU_DSI2ESCCLK  	52
+
+/* LCD DSI PLL - Ux540 only */
+#define PRCMU_PLLDSI_LCD        53
+#define PRCMU_DSI0CLK_LCD       54
+#define PRCMU_DSI1CLK_LCD       55
+#define PRCMU_DSI0ESCCLK_LCD    56
+#define PRCMU_DSI1ESCCLK_LCD    57
+#define PRCMU_DSI2ESCCLK_LCD    58
+
+#define PRCMU_NUM_CLKS  	59
+
+#endif
diff --git a/include/linux/mfd/dbx500-prcmu.h b/include/linux/mfd/dbx500-prcmu.h
index 87667d48602b..060e11256fbc 100644
--- a/include/linux/mfd/dbx500-prcmu.h
+++ b/include/linux/mfd/dbx500-prcmu.h
@@ -12,6 +12,8 @@
 #include <linux/notifier.h>
 #include <linux/err.h>
 
+#include <dt-bindings/mfd/dbx500-prcmu.h> /* For clock identifiers */
+
 /* Offset for the firmware version within the TCPM */
 #define DB8500_PRCMU_FW_VERSION_OFFSET 0xA4
 #define DBX540_PRCMU_FW_VERSION_OFFSET 0xA8
@@ -94,81 +96,6 @@ enum prcmu_wakeup_index {
 #define PRCMU_CLKSRC_ARMCLKFIX		0x46
 #define PRCMU_CLKSRC_HDMICLK		0x47
 
-/*
- * Clock identifiers.
- */
-#define ARMCLK			0
-#define PRCMU_ACLK		1
-#define PRCMU_SVAMMCSPCLK 	2
-#define PRCMU_SDMMCHCLK 	2  /* DBx540 only. */
-#define PRCMU_SIACLK 		3
-#define PRCMU_SIAMMDSPCLK 	3  /* DBx540 only. */
-#define PRCMU_SGACLK 		4
-#define PRCMU_UARTCLK 		5
-#define PRCMU_MSP02CLK 		6
-#define PRCMU_MSP1CLK 		7
-#define PRCMU_I2CCLK 		8
-#define PRCMU_SDMMCCLK 		9
-#define PRCMU_SLIMCLK 		10
-#define PRCMU_CAMCLK 		10 /* DBx540 only. */
-#define PRCMU_PER1CLK 		11
-#define PRCMU_PER2CLK 		12
-#define PRCMU_PER3CLK 		13
-#define PRCMU_PER5CLK 		14
-#define PRCMU_PER6CLK 		15
-#define PRCMU_PER7CLK 		16
-#define PRCMU_LCDCLK 		17
-#define PRCMU_BMLCLK 		18
-#define PRCMU_HSITXCLK 		19
-#define PRCMU_HSIRXCLK 		20
-#define PRCMU_HDMICLK		21
-#define PRCMU_APEATCLK 		22
-#define PRCMU_APETRACECLK 	23
-#define PRCMU_MCDECLK  	 	24
-#define PRCMU_IPI2CCLK  	25
-#define PRCMU_DSIALTCLK  	26
-#define PRCMU_DMACLK  	 	27
-#define PRCMU_B2R2CLK  	 	28
-#define PRCMU_TVCLK  	 	29
-#define SPARE_UNIPROCLK  	30
-#define PRCMU_SSPCLK  	 	31
-#define PRCMU_RNGCLK  	 	32
-#define PRCMU_UICCCLK  	 	33
-#define PRCMU_G1CLK             34 /* DBx540 only. */
-#define PRCMU_HVACLK            35 /* DBx540 only. */
-#define PRCMU_SPARE1CLK	 	36
-#define PRCMU_SPARE2CLK	 	37
-
-#define PRCMU_NUM_REG_CLOCKS  	38
-
-#define PRCMU_RTCCLK  	 	PRCMU_NUM_REG_CLOCKS
-#define PRCMU_SYSCLK  	 	39
-#define PRCMU_CDCLK  	 	40
-#define PRCMU_TIMCLK  	 	41
-#define PRCMU_PLLSOC0  	 	42
-#define PRCMU_PLLSOC1  	 	43
-#define PRCMU_ARMSS  	 	44
-#define PRCMU_PLLDDR  	 	45
-#define PRCMU_BML8580CLK        46
-
-/* DSI Clocks */
-#define PRCMU_PLLDSI  	 	47
-#define PRCMU_DSI0CLK 	  	48
-#define PRCMU_DSI1CLK  	 	49
-#define PRCMU_DSI0ESCCLK  	50
-#define PRCMU_DSI1ESCCLK  	51
-#define PRCMU_DSI2ESCCLK  	52
-
-/* LCD DSI PLL - Ux540 only */
-#define PRCMU_PLLDSI_LCD        53
-#define PRCMU_DSI0CLK_LCD       54
-#define PRCMU_DSI1CLK_LCD       55
-#define PRCMU_DSI0ESCCLK_LCD    56
-#define PRCMU_DSI1ESCCLK_LCD    57
-#define PRCMU_DSI2ESCCLK_LCD    58
-
-#define PRCMU_NUM_CLKS  	59
-
 /**
  * enum prcmu_wdog_id - PRCMU watchdog IDs
  * @PRCMU_WDOG_ALL: use all timers
-- 
cgit 


From 58092dc4dfde55d5824211e5aa1be47212a57f1f Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 19 Aug 2013 12:23:05 +0100
Subject: mfd: dbx500: Remove any mention of the BML8580CLK

The platform which it pertains to is no longer supported and is actually
causing some confusion in the new common clock implementation. A recent
patch removed its use in the clock driver, let's take out the definitions
too.

Acked-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/mfd/db8500-prcmu.c             |  1 -
 drivers/mfd/dbx500-prcmu-regs.h        |  1 -
 include/dt-bindings/mfd/dbx500-prcmu.h | 27 +++++++++++++--------------
 3 files changed, 13 insertions(+), 16 deletions(-)

diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c
index 53f371dcbb6e..b9ce60c301de 100644
--- a/drivers/mfd/db8500-prcmu.c
+++ b/drivers/mfd/db8500-prcmu.c
@@ -480,7 +480,6 @@ static struct clk_mgt clk_mgt[PRCMU_NUM_REG_CLOCKS] = {
 	CLK_MGT_ENTRY(PER6CLK, PLL_DIV, true),
 	CLK_MGT_ENTRY(PER7CLK, PLL_DIV, true),
 	CLK_MGT_ENTRY(LCDCLK, PLL_FIX, true),
-	CLK_MGT_ENTRY(BML8580CLK, PLL_DIV, true),
 	CLK_MGT_ENTRY(BMLCLK, PLL_DIV, true),
 	CLK_MGT_ENTRY(HSITXCLK, PLL_DIV, true),
 	CLK_MGT_ENTRY(HSIRXCLK, PLL_DIV, true),
diff --git a/drivers/mfd/dbx500-prcmu-regs.h b/drivers/mfd/dbx500-prcmu-regs.h
index 4f6f0fa5d3b7..7cc32a8ff01c 100644
--- a/drivers/mfd/dbx500-prcmu-regs.h
+++ b/drivers/mfd/dbx500-prcmu-regs.h
@@ -32,7 +32,6 @@
 #define PRCM_PER7CLK_MGT	(0x040)
 #define PRCM_LCDCLK_MGT		(0x044)
 #define PRCM_BMLCLK_MGT		(0x04C)
-#define PRCM_BML8580CLK_MGT	(0x108)
 #define PRCM_HSITXCLK_MGT	(0x050)
 #define PRCM_HSIRXCLK_MGT	(0x054)
 #define PRCM_HDMICLK_MGT	(0x058)
diff --git a/include/dt-bindings/mfd/dbx500-prcmu.h b/include/dt-bindings/mfd/dbx500-prcmu.h
index b7ee8c909908..552a2d174f01 100644
--- a/include/dt-bindings/mfd/dbx500-prcmu.h
+++ b/include/dt-bindings/mfd/dbx500-prcmu.h
@@ -61,24 +61,23 @@
 #define PRCMU_PLLSOC1  	 	43
 #define PRCMU_ARMSS  	 	44
 #define PRCMU_PLLDDR  	 	45
-#define PRCMU_BML8580CLK        46
 
 /* DSI Clocks */
-#define PRCMU_PLLDSI  	 	47
-#define PRCMU_DSI0CLK 	  	48
-#define PRCMU_DSI1CLK  	 	49
-#define PRCMU_DSI0ESCCLK  	50
-#define PRCMU_DSI1ESCCLK  	51
-#define PRCMU_DSI2ESCCLK  	52
+#define PRCMU_PLLDSI  	 	46
+#define PRCMU_DSI0CLK 	  	47
+#define PRCMU_DSI1CLK  	 	48
+#define PRCMU_DSI0ESCCLK  	49
+#define PRCMU_DSI1ESCCLK  	50
+#define PRCMU_DSI2ESCCLK  	51
 
 /* LCD DSI PLL - Ux540 only */
-#define PRCMU_PLLDSI_LCD        53
-#define PRCMU_DSI0CLK_LCD       54
-#define PRCMU_DSI1CLK_LCD       55
-#define PRCMU_DSI0ESCCLK_LCD    56
-#define PRCMU_DSI1ESCCLK_LCD    57
-#define PRCMU_DSI2ESCCLK_LCD    58
+#define PRCMU_PLLDSI_LCD        52
+#define PRCMU_DSI0CLK_LCD       53
+#define PRCMU_DSI1CLK_LCD       54
+#define PRCMU_DSI0ESCCLK_LCD    55
+#define PRCMU_DSI1ESCCLK_LCD    56
+#define PRCMU_DSI2ESCCLK_LCD    57
 
-#define PRCMU_NUM_CLKS  	59
+#define PRCMU_NUM_CLKS  	58
 
 #endif
-- 
cgit 


From 841cd0c0d815901137418705f81bf3be08c801c1 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 09:53:10 +0100
Subject: ARM: ux500: Add PRCMU clock node to DBx500 Device Tree

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 111d062dc8cc..3f94a5e6a231 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -10,6 +10,7 @@
  */
 
 #include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/mfd/dbx500-prcmu.h>
 #include "skeleton.dtsi"
 
 / {
@@ -42,6 +43,14 @@
 			interrupts = <0 7 IRQ_TYPE_LEVEL_HIGH>;
 		};
 
+		clocks {
+			compatible = "stericsson,u8500-clks";
+
+			prcmu_clk: prcmu-clock {
+				#clock-cells = <1>;
+			};
+		};
+
 		timer@a0410600 {
 			compatible = "arm,cortex-a9-twd-timer";
 			reg = <0xa0410600 0x20>;
-- 
cgit 


From e064cb24f249714cc9ce4e9b8f19d8afb395db4c Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 3 Jun 2013 13:13:54 +0100
Subject: ARM: ux500: Supply the DMA clock lookup to the DBX500 DT

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 3f94a5e6a231..ac43e6f999c9 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -228,6 +228,8 @@
 
 			#dma-cells = <3>;
 			memcpy-channels = <56 57 58 59 60>;
+
+			clocks = <&prcmu_clk PRCMU_DMACLK>;
 		};
 
 		prcmu: prcmu@80157000 {
-- 
cgit 


From fcbe5e90f87fa45da40d39c7da8709b403c7e8a0 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 6 Jun 2013 10:51:04 +0100
Subject: ARM: ux500: Add PRCC Peripheral clock node to DBx500 Device Tree

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index ac43e6f999c9..505404e4d3e4 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -49,6 +49,10 @@
 			prcmu_clk: prcmu-clock {
 				#clock-cells = <1>;
 			};
+
+			prcc_pclk: prcc-periph-clock {
+				#clock-cells = <2>;
+			};
 		};
 
 		timer@a0410600 {
-- 
cgit 


From 9d8910737413415114eb72d7b03f4b5c1f305c75 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 3 Jun 2013 13:07:51 +0100
Subject: ARM: ux500: Supply the GPIO clocks lookup to the DBX500 DT

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 505404e4d3e4..da188a2078ab 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -78,6 +78,8 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 			gpio-bank = <0>;
+
+			clocks = <&prcc_pclk 1 9>;
 		};
 
 		gpio1: gpio@8012e080 {
@@ -91,6 +93,8 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 			gpio-bank = <1>;
+
+			clocks = <&prcc_pclk 1 9>;
 		};
 
 		gpio2: gpio@8000e000 {
@@ -104,6 +108,8 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 			gpio-bank = <2>;
+
+			clocks = <&prcc_pclk 3 8>;
 		};
 
 		gpio3: gpio@8000e080 {
@@ -117,6 +123,8 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 			gpio-bank = <3>;
+
+			clocks = <&prcc_pclk 3 8>;
 		};
 
 		gpio4: gpio@8000e100 {
@@ -130,6 +138,8 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 			gpio-bank = <4>;
+
+			clocks = <&prcc_pclk 3 8>;
 		};
 
 		gpio5: gpio@8000e180 {
@@ -143,6 +153,8 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 			gpio-bank = <5>;
+
+			clocks = <&prcc_pclk 3 8>;
 		};
 
 		gpio6: gpio@8011e000 {
@@ -156,6 +168,8 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 			gpio-bank = <6>;
+
+			clocks = <&prcc_pclk 2 1>;
 		};
 
 		gpio7: gpio@8011e080 {
@@ -169,6 +183,8 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 			gpio-bank = <7>;
+
+			clocks = <&prcc_pclk 2 1>;
 		};
 
 		gpio8: gpio@a03fe000 {
@@ -182,6 +198,8 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 			gpio-bank = <8>;
+
+			clocks = <&prcc_pclk 6 1>;
 		};
 
 		pinctrl {
-- 
cgit 


From e47339fff2e01fb3edbbd3a284e6f7101dd89cb0 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 3 Jun 2013 13:08:26 +0100
Subject: ARM: ux500: Supply the USB clock lookup to the DBX500 DT

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index da188a2078ab..244e44a7f696 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -240,6 +240,8 @@
 				    "iep_6_14", "oep_6_14",
 				    "iep_7_15", "oep_7_15",
 				    "iep_8",    "oep_8";
+
+			clocks = <&prcc_pclk 5 0>;
 		};
 
 		dma: dma-controller@801C0000 {
-- 
cgit 


From 7fb2afc781cdc4db2d16b65bdee98dc615f4df20 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 3 Jun 2013 13:06:13 +0100
Subject: ARM: ux500: Supply the Ethernet clock lookup to Snowball's DT

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-snowball.dts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/ste-snowball.dts b/arch/arm/boot/dts/ste-snowball.dts
index acf99ece8499..3abec3205f13 100644
--- a/arch/arm/boot/dts/ste-snowball.dts
+++ b/arch/arm/boot/dts/ste-snowball.dts
@@ -111,12 +111,13 @@
 				vdd33a-supply = <&en_3v3_reg>;
 				vddvario-supply = <&db8500_vape_reg>;
 
-
 				reg-shift = <1>;
 				reg-io-width = <2>;
 				smsc,force-internal-phy;
 				smsc,irq-active-high;
 				smsc,irq-push-pull;
+
+				clocks = <&prcc_pclk 3 0>;
 			};
 		};
 
-- 
cgit 


From 2588fea6a531a15a6b926d0cdaff6dd6242d8dfd Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 6 Jun 2013 10:52:50 +0100
Subject: ARM: ux500: Add PRCC Kernel clock node to DBx500 Device Tree

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 244e44a7f696..3accea064e3e 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -53,6 +53,10 @@
 			prcc_pclk: prcc-periph-clock {
 				#clock-cells = <2>;
 			};
+
+			prcc_kclk: prcc-kernel-clock {
+				#clock-cells = <2>;
+			};
 		};
 
 		timer@a0410600 {
-- 
cgit 


From afd653e97d289cfc311f01f510864edd5f4a6f45 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 3 Jun 2013 13:15:22 +0100
Subject: ARM: ux500: Supply the I2C clocks lookup to the DBX500 DT

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 3accea064e3e..924490256b4d 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -603,6 +603,8 @@
 			v-i2c-supply = <&db8500_vape_reg>;
 
 			clock-frequency = <400000>;
+			clocks = <&prcc_kclk 3 3>, <&prcc_pclk 3 3>;
+			clock-names = "i2cclk", "apb_pclk";
 		};
 
 		i2c@80122000 {
@@ -615,6 +617,9 @@
 			v-i2c-supply = <&db8500_vape_reg>;
 
 			clock-frequency = <400000>;
+
+			clocks = <&prcc_kclk 1 2>, <&prcc_pclk 1 2>;
+			clock-names = "i2cclk", "apb_pclk";
 		};
 
 		i2c@80128000 {
@@ -627,6 +632,9 @@
 			v-i2c-supply = <&db8500_vape_reg>;
 
 			clock-frequency = <400000>;
+
+			clocks = <&prcc_kclk 1 6>, <&prcc_pclk 1 6>;
+			clock-names = "i2cclk", "apb_pclk";
 		};
 
 		i2c@80110000 {
@@ -639,6 +647,9 @@
 			v-i2c-supply = <&db8500_vape_reg>;
 
 			clock-frequency = <400000>;
+
+			clocks = <&prcc_kclk 2 0>, <&prcc_pclk 2 0>;
+			clock-names = "i2cclk", "apb_pclk";
 		};
 
 		i2c@8012a000 {
@@ -651,6 +662,9 @@
 			v-i2c-supply = <&db8500_vape_reg>;
 
 			clock-frequency = <400000>;
+
+			clocks = <&prcc_kclk 1 9>, <&prcc_pclk 1 9>;
+			clock-names = "i2cclk", "apb_pclk";
 		};
 
 		ssp@80002000 {
-- 
cgit 


From 5a323fb4f759fe5327e22d45f2ef761330ce7015 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 3 Jun 2013 13:17:17 +0100
Subject: ARM: ux500: Supply the UART clocks lookup to the DBX500 DT

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 924490256b4d..fe3df41fddb7 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -685,6 +685,9 @@
 			       <&dma 13 0 0x0>; /* Logical - MemToDev */
 			dma-names = "rx", "tx";
 
+			clocks = <&prcc_kclk 1 0>, <&prcc_pclk 1 0>;
+			clock-names = "uart", "apb_pclk";
+
 			status = "disabled";
 		};
 
@@ -697,6 +700,9 @@
 			       <&dma 12 0 0x0>; /* Logical - MemToDev */
 			dma-names = "rx", "tx";
 
+			clocks = <&prcc_kclk 1 1>, <&prcc_pclk 1 1>;
+			clock-names = "uart", "apb_pclk";
+
 			status = "disabled";
 		};
 
@@ -709,6 +715,9 @@
 			       <&dma 11 0 0x0>; /* Logical - MemToDev */
 			dma-names = "rx", "tx";
 
+			clocks = <&prcc_kclk 3 6>, <&prcc_pclk 3 6>;
+			clock-names = "uart", "apb_pclk";
+
 			status = "disabled";
 		};
 
-- 
cgit 


From 604be898461dd49bbd2024eb65443e590da3177a Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 6 Jun 2013 12:28:50 +0100
Subject: ARM: ux500: Supply the SDI (MMC) clocks lookup to the DBX500 DT

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index fe3df41fddb7..981107f115fe 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -730,6 +730,9 @@
 			       <&dma 29 0 0x0>; /* Logical - MemToDev */
 			dma-names = "rx", "tx";
 
+			clocks = <&prcc_kclk 1 5>, <&prcc_pclk 1 5>;
+			clock-names = "sdi", "apb_pclk";
+
 			status = "disabled";
 		};
 
@@ -742,6 +745,9 @@
 			       <&dma 32 0 0x0>; /* Logical - MemToDev */
 			dma-names = "rx", "tx";
 
+			clocks = <&prcc_kclk 2 4>, <&prcc_pclk 2 6>;
+			clock-names = "sdi", "apb_pclk";
+
 			status = "disabled";
 		};
 
@@ -754,6 +760,9 @@
 			       <&dma 28 0 0x0>; /* Logical - MemToDev */
 			dma-names = "rx", "tx";
 
+			clocks = <&prcc_kclk 3 4>, <&prcc_pclk 3 4>;
+			clock-names = "sdi", "apb_pclk";
+
 			status = "disabled";
 		};
 
@@ -761,6 +770,10 @@
 			compatible = "arm,pl18x", "arm,primecell";
 			reg = <0x80119000 0x1000>;
 			interrupts = <0 59 IRQ_TYPE_LEVEL_HIGH>;
+
+			clocks = <&prcc_kclk 2 5>, <&prcc_pclk 2 7>;
+			clock-names = "sdi", "apb_pclk";
+
 			status = "disabled";
 		};
 
@@ -773,6 +786,9 @@
 			       <&dma 42 0 0x0>; /* Logical - MemToDev */
 			dma-names = "rx", "tx";
 
+			clocks = <&prcc_kclk 2 2>, <&prcc_pclk 2 4>;
+			clock-names = "sdi", "apb_pclk";
+
 			status = "disabled";
 		};
 
@@ -780,6 +796,10 @@
 			compatible = "arm,pl18x", "arm,primecell";
 			reg = <0x80008000 0x1000>;
 			interrupts = <0 100 IRQ_TYPE_LEVEL_HIGH>;
+
+			clocks = <&prcc_kclk 3 7>, <&prcc_pclk 3 7>;
+			clock-names = "sdi", "apb_pclk";
+
 			status = "disabled";
 		};
 
-- 
cgit 


From 133e6027e7afee018bf189187a2cb9c8b7224208 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 3 Jun 2013 13:18:00 +0100
Subject: ARM: ux500: Supply the MSP (Audio) clocks lookup to the DBX500 DT

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 981107f115fe..5b11c7bb93f3 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -808,6 +808,10 @@
 			reg = <0x80123000 0x1000>;
 			interrupts = <0 31 IRQ_TYPE_LEVEL_HIGH>;
 			v-ape-supply = <&db8500_vape_reg>;
+
+			clocks = <&prcc_kclk 1 3>, <&prcc_pclk 1 3>;
+			clock-names = "msp", "apb_pclk";
+
 			status = "disabled";
 		};
 
@@ -816,6 +820,10 @@
 			reg = <0x80124000 0x1000>;
 			interrupts = <0 62 IRQ_TYPE_LEVEL_HIGH>;
 			v-ape-supply = <&db8500_vape_reg>;
+
+			clocks = <&prcc_kclk 1 4>, <&prcc_pclk 1 4>;
+			clock-names = "msp", "apb_pclk";
+
 			status = "disabled";
 		};
 
@@ -825,6 +833,10 @@
 			reg = <0x80117000 0x1000>;
 			interrupts = <0 98 IRQ_TYPE_LEVEL_HIGH>;
 			v-ape-supply = <&db8500_vape_reg>;
+
+			clocks = <&prcc_kclk 2 3>, <&prcc_pclk 2 5>;
+			clock-names = "msp", "apb_pclk";
+
 			status = "disabled";
 		};
 
@@ -833,6 +845,10 @@
 			reg = <0x80125000 0x1000>;
 			interrupts = <0 62 IRQ_TYPE_LEVEL_HIGH>;
 			v-ape-supply = <&db8500_vape_reg>;
+
+			clocks = <&prcc_kclk 1 10>, <&prcc_pclk 1 11>;
+			clock-names = "msp", "apb_pclk";
+
 			status = "disabled";
 		};
 
-- 
cgit 


From 589d9839df6a5955eeda785a164e515d35ac3cad Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 6 Jun 2013 10:54:27 +0100
Subject: ARM: ux500: Add RTC (fixed-frequency) clock node to DBx500 Device
 Tree

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 5b11c7bb93f3..60e8c198e981 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -57,6 +57,10 @@
 			prcc_kclk: prcc-kernel-clock {
 				#clock-cells = <2>;
 			};
+
+			rtc_clk: rtc32k-clock {
+				#clock-cells = <0>;
+			};
 		};
 
 		timer@a0410600 {
-- 
cgit 


From d299b5a5ee96cae1639968429a89cb5e76e1f4f9 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 5 Jun 2013 12:27:24 +0100
Subject: ARM: ux500: Supply the RTC clock lookup to the DBX500 DT

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 60e8c198e981..8c52f3f28b62 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -73,6 +73,9 @@
 			compatible = "arm,rtc-pl031", "arm,primecell";
 			reg = <0x80154000 0x1000>;
 			interrupts = <0 18 IRQ_TYPE_LEVEL_HIGH>;
+
+			clocks = <&rtc_clk>;
+			clock-names = "apb_pclk";
 		};
 
 		gpio0: gpio@8012e000 {
-- 
cgit 


From 309012d7e0c136211957755288d74e243af40201 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 6 Jun 2013 10:54:48 +0100
Subject: ARM: ux500: Add TWD (fixed-factor) clock node to DBx500 Device Tree

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 8c52f3f28b62..cc45052ce0b9 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -61,6 +61,10 @@
 			rtc_clk: rtc32k-clock {
 				#clock-cells = <0>;
 			};
+
+			smp_twd_clk: smp-twd-clock {
+				#clock-cells = <0>;
+			};
 		};
 
 		timer@a0410600 {
-- 
cgit 


From a8acb1ecc5490645a9fc53ecc5181dae9ba8703f Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 5 Jun 2013 12:26:52 +0100
Subject: ARM: ux500: Supply the TWD Timer clock lookup to the DBX500 DT

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index cc45052ce0b9..80b0304dd441 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -71,6 +71,8 @@
 			compatible = "arm,cortex-a9-twd-timer";
 			reg = <0xa0410600 0x20>;
 			interrupts = <1 13 0x304>; /* IRQ level high per-CPU */
+
+			clocks = <&smp_twd_clk>;
 		};
 
 		rtc@80154000 {
-- 
cgit 


From 8132ed1bb81471b3ced3cdcd7a7f46caff4c2a2f Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 09:54:07 +0100
Subject: ARM: ux500: Add a DT node for the Nomadik System Timer (MTU0)

The MTU0 is required for full booting of the system. The driver has
been previously DT:ed and is in use on the Nomadik platform, but we
also need to enable it on ux500 based systems.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 80b0304dd441..c417cb8a24ab 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -43,6 +43,7 @@
 			interrupts = <0 7 IRQ_TYPE_LEVEL_HIGH>;
 		};
 
+
 		clocks {
 			compatible = "stericsson,u8500-clks";
 
@@ -67,6 +68,16 @@
 			};
 		};
 
+		mtu@a03c6000 {
+			/* Nomadik System Timer */
+			compatible = "st,nomadik-mtu";
+			reg = <0xa03c6000 0x1000>;
+			interrupts = <0 4 IRQ_TYPE_LEVEL_HIGH>;
+
+			clocks = <&prcmu_clk PRCMU_TIMCLK>, <&prcc_pclk 6 6>;
+			clock-names = "timclk", "apb_pclk";
+		};
+
 		timer@a0410600 {
 			compatible = "arm,cortex-a9-twd-timer";
 			reg = <0xa0410600 0x20>;
-- 
cgit 


From 970eb8fe135ed11e0805ceb0566a940d3eeccbca Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 08:55:19 +0100
Subject: ARM: ux500: Don't attempt to enable the Nomadik System Timer twice

When booting with DT enabled we already call clocksource_of_init(),
which in turn calls the OF version of nmdk_timer_init().

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/timer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-ux500/timer.c b/arch/arm/mach-ux500/timer.c
index b6bd0efcbe64..05a4ff78b3bd 100644
--- a/arch/arm/mach-ux500/timer.c
+++ b/arch/arm/mach-ux500/timer.c
@@ -97,8 +97,8 @@ dt_fail:
 	 * sched_clock with higher rating then MTU since is always-on.
 	 *
 	 */
-
-	nmdk_timer_init(mtu_timer_base, IRQ_MTU0);
+	if (!of_have_populated_dt())
+		nmdk_timer_init(mtu_timer_base, IRQ_MTU0);
 	clksrc_dbx500_prcmu_init(prcmu_timer_base);
 	ux500_twd_init();
 }
-- 
cgit 


From 0473b177c3dd5abdb2a7b54eec1921283928a17b Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 8 Aug 2013 10:38:15 +0100
Subject: clk: ux500: Remove BML8580 clock

There is no mention of the PRCMU_BML8580CLK in any of the Design
Specifications for the chips supported in Mainline. In fact, where it
is incorrectly used in the u8540 clock definition driver it would
have the side effect of using the incorrect clock management address
([PRCM_BML8580CLK_MGT] 0x108 instead of the correct value 0x04C).

Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/clk/ux500/u8540_clk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/ux500/u8540_clk.c b/drivers/clk/ux500/u8540_clk.c
index f26258869deb..20c8add90d11 100644
--- a/drivers/clk/ux500/u8540_clk.c
+++ b/drivers/clk/ux500/u8540_clk.c
@@ -83,7 +83,7 @@ void u8540_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
 	clk_register_clkdev(clk, NULL, "lcd");
 	clk_register_clkdev(clk, "lcd", "mcde");
 
-	clk = clk_reg_prcmu_opp_gate("bmlclk", NULL, PRCMU_BML8580CLK,
+	clk = clk_reg_prcmu_opp_gate("bmlclk", NULL, PRCMU_BMLCLK,
 				CLK_IS_ROOT);
 	clk_register_clkdev(clk, NULL, "bml");
 
-- 
cgit 


From 82b0f4b7c576d22c764239662cedc63c21f02d8d Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 17 Sep 2013 10:11:53 +0100
Subject: clk: ux500: Copy u8500_clk_init() ready for DT enablement

Here we're using the old clock initialisation function as a template.
It's necessary to remove all of the clk_register_clkdev() calls as
they don't make sense when booting with Device Tree.

Cc: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/clk/ux500/Makefile              |   1 +
 drivers/clk/ux500/u8500_of_clk.c        | 381 ++++++++++++++++++++++++++++++++
 include/linux/platform_data/clk-ux500.h |   3 +
 3 files changed, 385 insertions(+)
 create mode 100644 drivers/clk/ux500/u8500_of_clk.c

diff --git a/drivers/clk/ux500/Makefile b/drivers/clk/ux500/Makefile
index c6a806ed0e8c..521483f0ba33 100644
--- a/drivers/clk/ux500/Makefile
+++ b/drivers/clk/ux500/Makefile
@@ -8,6 +8,7 @@ obj-y += clk-prcmu.o
 obj-y += clk-sysctrl.o
 
 # Clock definitions
+obj-y += u8500_of_clk.o
 obj-y += u8500_clk.o
 obj-y += u9540_clk.o
 obj-y += u8540_clk.o
diff --git a/drivers/clk/ux500/u8500_of_clk.c b/drivers/clk/ux500/u8500_of_clk.c
new file mode 100644
index 000000000000..ceebce6a624f
--- /dev/null
+++ b/drivers/clk/ux500/u8500_of_clk.c
@@ -0,0 +1,381 @@
+/*
+ * Clock definitions for u8500 platform.
+ *
+ * Copyright (C) 2012 ST-Ericsson SA
+ * Author: Ulf Hansson <ulf.hansson@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/mfd/dbx500-prcmu.h>
+#include <linux/platform_data/clk-ux500.h>
+#include "clk.h"
+
+void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
+		       u32 clkrst5_base, u32 clkrst6_base)
+{
+	struct prcmu_fw_version *fw_version;
+	const char *sgaclk_parent = NULL;
+	struct clk *clk;
+
+	/* Clock sources */
+	clk = clk_reg_prcmu_gate("soc0_pll", NULL, PRCMU_PLLSOC0,
+				CLK_IS_ROOT|CLK_IGNORE_UNUSED);
+
+	clk = clk_reg_prcmu_gate("soc1_pll", NULL, PRCMU_PLLSOC1,
+				CLK_IS_ROOT|CLK_IGNORE_UNUSED);
+
+	clk = clk_reg_prcmu_gate("ddr_pll", NULL, PRCMU_PLLDDR,
+				CLK_IS_ROOT|CLK_IGNORE_UNUSED);
+
+	/* FIXME: Add sys, ulp and int clocks here. */
+
+	clk = clk_register_fixed_rate(NULL, "rtc32k", "NULL",
+				CLK_IS_ROOT|CLK_IGNORE_UNUSED,
+				32768);
+
+	/* PRCMU clocks */
+	fw_version = prcmu_get_fw_version();
+	if (fw_version != NULL) {
+		switch (fw_version->project) {
+		case PRCMU_FW_PROJECT_U8500_C2:
+		case PRCMU_FW_PROJECT_U8520:
+		case PRCMU_FW_PROJECT_U8420:
+			sgaclk_parent = "soc0_pll";
+			break;
+		default:
+			break;
+		}
+	}
+
+	if (sgaclk_parent)
+		clk = clk_reg_prcmu_gate("sgclk", sgaclk_parent,
+					PRCMU_SGACLK, 0);
+	else
+		clk = clk_reg_prcmu_gate("sgclk", NULL,
+					PRCMU_SGACLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_gate("uartclk", NULL, PRCMU_UARTCLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_gate("msp02clk", NULL, PRCMU_MSP02CLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_gate("msp1clk", NULL, PRCMU_MSP1CLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_gate("i2cclk", NULL, PRCMU_I2CCLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_gate("slimclk", NULL, PRCMU_SLIMCLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_gate("per1clk", NULL, PRCMU_PER1CLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_gate("per2clk", NULL, PRCMU_PER2CLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_gate("per3clk", NULL, PRCMU_PER3CLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_gate("per5clk", NULL, PRCMU_PER5CLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_gate("per6clk", NULL, PRCMU_PER6CLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_gate("per7clk", NULL, PRCMU_PER7CLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_scalable("lcdclk", NULL, PRCMU_LCDCLK, 0,
+				CLK_IS_ROOT|CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcmu_opp_gate("bmlclk", NULL, PRCMU_BMLCLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_scalable("hsitxclk", NULL, PRCMU_HSITXCLK, 0,
+				CLK_IS_ROOT|CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcmu_scalable("hsirxclk", NULL, PRCMU_HSIRXCLK, 0,
+				CLK_IS_ROOT|CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcmu_scalable("hdmiclk", NULL, PRCMU_HDMICLK, 0,
+				CLK_IS_ROOT|CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcmu_gate("apeatclk", NULL, PRCMU_APEATCLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_gate("apetraceclk", NULL, PRCMU_APETRACECLK,
+				CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_gate("mcdeclk", NULL, PRCMU_MCDECLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_opp_gate("ipi2cclk", NULL, PRCMU_IPI2CCLK,
+				CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_gate("dsialtclk", NULL, PRCMU_DSIALTCLK,
+				CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_gate("dmaclk", NULL, PRCMU_DMACLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_gate("b2r2clk", NULL, PRCMU_B2R2CLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_scalable("tvclk", NULL, PRCMU_TVCLK, 0,
+				CLK_IS_ROOT|CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcmu_gate("sspclk", NULL, PRCMU_SSPCLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_gate("rngclk", NULL, PRCMU_RNGCLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_gate("uiccclk", NULL, PRCMU_UICCCLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_gate("timclk", NULL, PRCMU_TIMCLK, CLK_IS_ROOT);
+
+	clk = clk_reg_prcmu_opp_volt_scalable("sdmmcclk", NULL, PRCMU_SDMMCCLK,
+					100000000,
+					CLK_IS_ROOT|CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcmu_scalable("dsi_pll", "hdmiclk",
+				PRCMU_PLLDSI, 0, CLK_SET_RATE_GATE);
+
+
+	clk = clk_reg_prcmu_scalable("dsi0clk", "dsi_pll",
+				PRCMU_DSI0CLK, 0, CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcmu_scalable("dsi1clk", "dsi_pll",
+				PRCMU_DSI1CLK, 0, CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcmu_scalable("dsi0escclk", "tvclk",
+				PRCMU_DSI0ESCCLK, 0, CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcmu_scalable("dsi1escclk", "tvclk",
+				PRCMU_DSI1ESCCLK, 0, CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcmu_scalable("dsi2escclk", "tvclk",
+				PRCMU_DSI2ESCCLK, 0, CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcmu_scalable_rate("armss", NULL,
+				PRCMU_ARMSS, 0, CLK_IS_ROOT|CLK_IGNORE_UNUSED);
+
+	clk = clk_register_fixed_factor(NULL, "smp_twd", "armss",
+				CLK_IGNORE_UNUSED, 1, 2);
+
+	/*
+	 * FIXME: Add special handled PRCMU clocks here:
+	 * 1. clkout0yuv, use PRCMU as parent + need regulator + pinctrl.
+	 * 2. ab9540_clkout1yuv, see clkout0yuv
+	 */
+
+	/* PRCC P-clocks */
+	clk = clk_reg_prcc_pclk("p1_pclk0", "per1clk", clkrst1_base,
+				BIT(0), 0);
+
+	clk = clk_reg_prcc_pclk("p1_pclk1", "per1clk", clkrst1_base,
+				BIT(1), 0);
+
+	clk = clk_reg_prcc_pclk("p1_pclk2", "per1clk", clkrst1_base,
+				BIT(2), 0);
+
+	clk = clk_reg_prcc_pclk("p1_pclk3", "per1clk", clkrst1_base,
+				BIT(3), 0);
+
+	clk = clk_reg_prcc_pclk("p1_pclk4", "per1clk", clkrst1_base,
+				BIT(4), 0);
+
+	clk = clk_reg_prcc_pclk("p1_pclk5", "per1clk", clkrst1_base,
+				BIT(5), 0);
+
+	clk = clk_reg_prcc_pclk("p1_pclk6", "per1clk", clkrst1_base,
+				BIT(6), 0);
+
+	clk = clk_reg_prcc_pclk("p1_pclk7", "per1clk", clkrst1_base,
+				BIT(7), 0);
+
+	clk = clk_reg_prcc_pclk("p1_pclk8", "per1clk", clkrst1_base,
+				BIT(8), 0);
+
+	clk = clk_reg_prcc_pclk("p1_pclk9", "per1clk", clkrst1_base,
+				BIT(9), 0);
+
+	clk = clk_reg_prcc_pclk("p1_pclk10", "per1clk", clkrst1_base,
+				BIT(10), 0);
+
+	clk = clk_reg_prcc_pclk("p1_pclk11", "per1clk", clkrst1_base,
+				BIT(11), 0);
+
+	clk = clk_reg_prcc_pclk("p2_pclk0", "per2clk", clkrst2_base,
+				BIT(0), 0);
+
+	clk = clk_reg_prcc_pclk("p2_pclk1", "per2clk", clkrst2_base,
+				BIT(1), 0);
+
+	clk = clk_reg_prcc_pclk("p2_pclk2", "per2clk", clkrst2_base,
+				BIT(2), 0);
+
+	clk = clk_reg_prcc_pclk("p2_pclk3", "per2clk", clkrst2_base,
+				BIT(3), 0);
+
+	clk = clk_reg_prcc_pclk("p2_pclk4", "per2clk", clkrst2_base,
+				BIT(4), 0);
+
+	clk = clk_reg_prcc_pclk("p2_pclk5", "per2clk", clkrst2_base,
+				BIT(5), 0);
+
+	clk = clk_reg_prcc_pclk("p2_pclk6", "per2clk", clkrst2_base,
+				BIT(6), 0);
+
+	clk = clk_reg_prcc_pclk("p2_pclk7", "per2clk", clkrst2_base,
+				BIT(7), 0);
+
+	clk = clk_reg_prcc_pclk("p2_pclk8", "per2clk", clkrst2_base,
+				BIT(8), 0);
+
+	clk = clk_reg_prcc_pclk("p2_pclk9", "per2clk", clkrst2_base,
+				BIT(9), 0);
+
+	clk = clk_reg_prcc_pclk("p2_pclk10", "per2clk", clkrst2_base,
+				BIT(10), 0);
+
+	clk = clk_reg_prcc_pclk("p2_pclk11", "per2clk", clkrst2_base,
+				BIT(11), 0);
+
+	clk = clk_reg_prcc_pclk("p2_pclk12", "per2clk", clkrst2_base,
+				BIT(12), 0);
+
+	clk = clk_reg_prcc_pclk("p3_pclk0", "per3clk", clkrst3_base,
+				BIT(0), 0);
+
+	clk = clk_reg_prcc_pclk("p3_pclk1", "per3clk", clkrst3_base,
+				BIT(1), 0);
+
+	clk = clk_reg_prcc_pclk("p3_pclk2", "per3clk", clkrst3_base,
+				BIT(2), 0);
+
+	clk = clk_reg_prcc_pclk("p3_pclk3", "per3clk", clkrst3_base,
+				BIT(3), 0);
+
+	clk = clk_reg_prcc_pclk("p3_pclk4", "per3clk", clkrst3_base,
+				BIT(4), 0);
+
+	clk = clk_reg_prcc_pclk("p3_pclk5", "per3clk", clkrst3_base,
+				BIT(5), 0);
+
+	clk = clk_reg_prcc_pclk("p3_pclk6", "per3clk", clkrst3_base,
+				BIT(6), 0);
+
+	clk = clk_reg_prcc_pclk("p3_pclk7", "per3clk", clkrst3_base,
+				BIT(7), 0);
+
+	clk = clk_reg_prcc_pclk("p3_pclk8", "per3clk", clkrst3_base,
+				BIT(8), 0);
+
+	clk = clk_reg_prcc_pclk("p5_pclk0", "per5clk", clkrst5_base,
+				BIT(0), 0);
+
+	clk = clk_reg_prcc_pclk("p5_pclk1", "per5clk", clkrst5_base,
+				BIT(1), 0);
+
+	clk = clk_reg_prcc_pclk("p6_pclk0", "per6clk", clkrst6_base,
+				BIT(0), 0);
+
+	clk = clk_reg_prcc_pclk("p6_pclk1", "per6clk", clkrst6_base,
+				BIT(1), 0);
+
+	clk = clk_reg_prcc_pclk("p6_pclk2", "per6clk", clkrst6_base,
+				BIT(2), 0);
+
+	clk = clk_reg_prcc_pclk("p6_pclk3", "per6clk", clkrst6_base,
+				BIT(3), 0);
+
+	clk = clk_reg_prcc_pclk("p6_pclk4", "per6clk", clkrst6_base,
+				BIT(4), 0);
+
+	clk = clk_reg_prcc_pclk("p6_pclk5", "per6clk", clkrst6_base,
+				BIT(5), 0);
+
+	clk = clk_reg_prcc_pclk("p6_pclk6", "per6clk", clkrst6_base,
+				BIT(6), 0);
+
+	clk = clk_reg_prcc_pclk("p6_pclk7", "per6clk", clkrst6_base,
+				BIT(7), 0);
+
+	/* PRCC K-clocks
+	 *
+	 * FIXME: Some drivers requires PERPIH[n| to be automatically enabled
+	 * by enabling just the K-clock, even if it is not a valid parent to
+	 * the K-clock. Until drivers get fixed we might need some kind of
+	 * "parent muxed join".
+	 */
+
+	/* Periph1 */
+	clk = clk_reg_prcc_kclk("p1_uart0_kclk", "uartclk",
+			clkrst1_base, BIT(0), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p1_uart1_kclk", "uartclk",
+			clkrst1_base, BIT(1), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p1_i2c1_kclk", "i2cclk",
+			clkrst1_base, BIT(2), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p1_msp0_kclk", "msp02clk",
+			clkrst1_base, BIT(3), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p1_msp1_kclk", "msp1clk",
+			clkrst1_base, BIT(4), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p1_sdi0_kclk", "sdmmcclk",
+			clkrst1_base, BIT(5), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p1_i2c2_kclk", "i2cclk",
+			clkrst1_base, BIT(6), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p1_slimbus0_kclk", "slimclk",
+			clkrst1_base, BIT(8), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p1_i2c4_kclk", "i2cclk",
+			clkrst1_base, BIT(9), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p1_msp3_kclk", "msp1clk",
+			clkrst1_base, BIT(10), CLK_SET_RATE_GATE);
+
+	/* Periph2 */
+	clk = clk_reg_prcc_kclk("p2_i2c3_kclk", "i2cclk",
+			clkrst2_base, BIT(0), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p2_sdi4_kclk", "sdmmcclk",
+			clkrst2_base, BIT(2), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p2_msp2_kclk", "msp02clk",
+			clkrst2_base, BIT(3), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p2_sdi1_kclk", "sdmmcclk",
+			clkrst2_base, BIT(4), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p2_sdi3_kclk", "sdmmcclk",
+			clkrst2_base, BIT(5), CLK_SET_RATE_GATE);
+
+	/* Note that rate is received from parent. */
+	clk = clk_reg_prcc_kclk("p2_ssirx_kclk", "hsirxclk",
+			clkrst2_base, BIT(6),
+			CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT);
+	clk = clk_reg_prcc_kclk("p2_ssitx_kclk", "hsitxclk",
+			clkrst2_base, BIT(7),
+			CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT);
+
+	/* Periph3 */
+	clk = clk_reg_prcc_kclk("p3_ssp0_kclk", "sspclk",
+			clkrst3_base, BIT(1), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p3_ssp1_kclk", "sspclk",
+			clkrst3_base, BIT(2), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p3_i2c0_kclk", "i2cclk",
+			clkrst3_base, BIT(3), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p3_sdi2_kclk", "sdmmcclk",
+			clkrst3_base, BIT(4), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p3_ske_kclk", "rtc32k",
+			clkrst3_base, BIT(5), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p3_uart2_kclk", "uartclk",
+			clkrst3_base, BIT(6), CLK_SET_RATE_GATE);
+
+	clk = clk_reg_prcc_kclk("p3_sdi5_kclk", "sdmmcclk",
+			clkrst3_base, BIT(7), CLK_SET_RATE_GATE);
+
+	/* Periph6 */
+	clk = clk_reg_prcc_kclk("p3_rng_kclk", "rngclk",
+			clkrst6_base, BIT(0), CLK_SET_RATE_GATE);
+}
diff --git a/include/linux/platform_data/clk-ux500.h b/include/linux/platform_data/clk-ux500.h
index 9d98f3aaa16c..97baf831e071 100644
--- a/include/linux/platform_data/clk-ux500.h
+++ b/include/linux/platform_data/clk-ux500.h
@@ -10,6 +10,9 @@
 #ifndef __CLK_UX500_H
 #define __CLK_UX500_H
 
+void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
+		       u32 clkrst5_base, u32 clkrst6_base);
+
 void u8500_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
 		    u32 clkrst5_base, u32 clkrst6_base);
 void u9540_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
-- 
cgit 


From dec759d8ef01b3edd5ceb9832ce2338c6c396d11 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 17 Sep 2013 10:26:24 +0100
Subject: clk: ux500: Provide u8500_clk with skeleton Device Tree support

The functional components will be added on a per-clock basis.

Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/clk/ux500/u8500_of_clk.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/drivers/clk/ux500/u8500_of_clk.c b/drivers/clk/ux500/u8500_of_clk.c
index ceebce6a624f..bfbe3cae72d7 100644
--- a/drivers/clk/ux500/u8500_of_clk.c
+++ b/drivers/clk/ux500/u8500_of_clk.c
@@ -7,6 +7,7 @@
  * License terms: GNU General Public License (GPL) version 2
  */
 
+#include <linux/of.h>
 #include <linux/clk.h>
 #include <linux/clkdev.h>
 #include <linux/clk-provider.h>
@@ -14,13 +15,27 @@
 #include <linux/platform_data/clk-ux500.h>
 #include "clk.h"
 
+static const struct of_device_id u8500_clk_of_match[] = {
+	{ .compatible = "stericsson,u8500-clks", },
+	{ },
+};
+
 void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
 		       u32 clkrst5_base, u32 clkrst6_base)
 {
 	struct prcmu_fw_version *fw_version;
+	struct device_node *np = NULL;
+	struct device_node *child = NULL;
 	const char *sgaclk_parent = NULL;
 	struct clk *clk;
 
+	if (of_have_populated_dt())
+		np = of_find_matching_node(NULL, u8500_clk_of_match);
+	if (!np) {
+		pr_err("Either DT or U8500 Clock node not found\n");
+		return;
+	}
+
 	/* Clock sources */
 	clk = clk_reg_prcmu_gate("soc0_pll", NULL, PRCMU_PLLSOC0,
 				CLK_IS_ROOT|CLK_IGNORE_UNUSED);
@@ -378,4 +393,8 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
 	/* Periph6 */
 	clk = clk_reg_prcc_kclk("p3_rng_kclk", "rngclk",
 			clkrst6_base, BIT(0), CLK_SET_RATE_GATE);
+
+	for_each_child_of_node(np, child) {
+		/* Place holder for supported nodes. */
+	}
 }
-- 
cgit 


From b4bdc81b5b234beb876ffc70380e05b21f64c7ac Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 22 Jul 2013 13:13:01 +0100
Subject: clk: ux500: Add a 2-cell Device Tree parser for obtaining PRCC clocks

PRCC (peripheral and kernel) clocks are specified using a property tuple
<&phandle base bit>, where 'base' is the peripheral (1, 2, 3, 5 or 6),
and bit is read-in value into that peripheral stipulated by the hardware
specification.

Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/clk/ux500/u8500_of_clk.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/clk/ux500/u8500_of_clk.c b/drivers/clk/ux500/u8500_of_clk.c
index bfbe3cae72d7..b9b3317bdc2f 100644
--- a/drivers/clk/ux500/u8500_of_clk.c
+++ b/drivers/clk/ux500/u8500_of_clk.c
@@ -15,6 +15,28 @@
 #include <linux/platform_data/clk-ux500.h>
 #include "clk.h"
 
+#define PRCC_SHOW(clk, base, bit) \
+	clk[(base * PRCC_PERIPHS_PER_CLUSTER) + bit]
+
+struct clk *ux500_twocell_get(struct of_phandle_args *clkspec, void *data)
+{
+	struct clk **clk_data = data;
+	unsigned int base, bit;
+
+	if (clkspec->args_count != 2)
+		return  ERR_PTR(-EINVAL);
+
+	base = clkspec->args[0];
+	bit = clkspec->args[1];
+
+	if (base != 1 && base != 2 && base != 3 && base != 5 && base != 6) {
+		pr_err("%s: invalid PRCC base %d\n", __func__, base);
+		return ERR_PTR(-EINVAL);
+	}
+
+	return PRCC_SHOW(clk_data, base, bit);
+}
+
 static const struct of_device_id u8500_clk_of_match[] = {
 	{ .compatible = "stericsson,u8500-clks", },
 	{ },
-- 
cgit 


From f9fcb8e8c8f40c7edbeb7d70bcaed5c6a1095676 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 17 Sep 2013 10:30:19 +0100
Subject: clk: ux500: Add Device Tree support for the PRCMU clock

This patch enables clocks to be specified from Device Tree via phandles
to the "prcmu-clock" node.

Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/clk/ux500/u8500_of_clk.c | 50 ++++++++++++++++++++++++++++++++++++++--
 1 file changed, 48 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/ux500/u8500_of_clk.c b/drivers/clk/ux500/u8500_of_clk.c
index b9b3317bdc2f..f5534fdaba6b 100644
--- a/drivers/clk/ux500/u8500_of_clk.c
+++ b/drivers/clk/ux500/u8500_of_clk.c
@@ -15,6 +15,8 @@
 #include <linux/platform_data/clk-ux500.h>
 #include "clk.h"
 
+static struct clk *prcmu_clk[PRCMU_NUM_CLKS];
+
 #define PRCC_SHOW(clk, base, bit) \
 	clk[(base * PRCC_PERIPHS_PER_CLUSTER) + bit]
 
@@ -61,12 +63,15 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
 	/* Clock sources */
 	clk = clk_reg_prcmu_gate("soc0_pll", NULL, PRCMU_PLLSOC0,
 				CLK_IS_ROOT|CLK_IGNORE_UNUSED);
+	prcmu_clk[PRCMU_PLLSOC0] = clk;
 
 	clk = clk_reg_prcmu_gate("soc1_pll", NULL, PRCMU_PLLSOC1,
 				CLK_IS_ROOT|CLK_IGNORE_UNUSED);
+	prcmu_clk[PRCMU_PLLSOC1] = clk;
 
 	clk = clk_reg_prcmu_gate("ddr_pll", NULL, PRCMU_PLLDDR,
 				CLK_IS_ROOT|CLK_IGNORE_UNUSED);
+	prcmu_clk[PRCMU_PLLDDR] = clk;
 
 	/* FIXME: Add sys, ulp and int clocks here. */
 
@@ -94,93 +99,128 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
 	else
 		clk = clk_reg_prcmu_gate("sgclk", NULL,
 					PRCMU_SGACLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_SGACLK] = clk;
 
 	clk = clk_reg_prcmu_gate("uartclk", NULL, PRCMU_UARTCLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_UARTCLK] = clk;
 
 	clk = clk_reg_prcmu_gate("msp02clk", NULL, PRCMU_MSP02CLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_MSP02CLK] = clk;
 
 	clk = clk_reg_prcmu_gate("msp1clk", NULL, PRCMU_MSP1CLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_MSP1CLK] = clk;
 
 	clk = clk_reg_prcmu_gate("i2cclk", NULL, PRCMU_I2CCLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_I2CCLK] = clk;
 
 	clk = clk_reg_prcmu_gate("slimclk", NULL, PRCMU_SLIMCLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_SLIMCLK] = clk;
 
 	clk = clk_reg_prcmu_gate("per1clk", NULL, PRCMU_PER1CLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_PER1CLK] = clk;
 
 	clk = clk_reg_prcmu_gate("per2clk", NULL, PRCMU_PER2CLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_PER2CLK] = clk;
 
 	clk = clk_reg_prcmu_gate("per3clk", NULL, PRCMU_PER3CLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_PER3CLK] = clk;
 
 	clk = clk_reg_prcmu_gate("per5clk", NULL, PRCMU_PER5CLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_PER5CLK] = clk;
 
 	clk = clk_reg_prcmu_gate("per6clk", NULL, PRCMU_PER6CLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_PER6CLK] = clk;
 
 	clk = clk_reg_prcmu_gate("per7clk", NULL, PRCMU_PER7CLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_PER7CLK] = clk;
 
 	clk = clk_reg_prcmu_scalable("lcdclk", NULL, PRCMU_LCDCLK, 0,
 				CLK_IS_ROOT|CLK_SET_RATE_GATE);
+	prcmu_clk[PRCMU_LCDCLK] = clk;
 
 	clk = clk_reg_prcmu_opp_gate("bmlclk", NULL, PRCMU_BMLCLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_BMLCLK] = clk;
 
 	clk = clk_reg_prcmu_scalable("hsitxclk", NULL, PRCMU_HSITXCLK, 0,
 				CLK_IS_ROOT|CLK_SET_RATE_GATE);
+	prcmu_clk[PRCMU_HSITXCLK] = clk;
 
 	clk = clk_reg_prcmu_scalable("hsirxclk", NULL, PRCMU_HSIRXCLK, 0,
 				CLK_IS_ROOT|CLK_SET_RATE_GATE);
+	prcmu_clk[PRCMU_HSIRXCLK] = clk;
 
 	clk = clk_reg_prcmu_scalable("hdmiclk", NULL, PRCMU_HDMICLK, 0,
 				CLK_IS_ROOT|CLK_SET_RATE_GATE);
+	prcmu_clk[PRCMU_HDMICLK] = clk;
 
 	clk = clk_reg_prcmu_gate("apeatclk", NULL, PRCMU_APEATCLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_APEATCLK] = clk;
 
 	clk = clk_reg_prcmu_gate("apetraceclk", NULL, PRCMU_APETRACECLK,
 				CLK_IS_ROOT);
+	prcmu_clk[PRCMU_APETRACECLK] = clk;
 
 	clk = clk_reg_prcmu_gate("mcdeclk", NULL, PRCMU_MCDECLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_MCDECLK] = clk;
 
 	clk = clk_reg_prcmu_opp_gate("ipi2cclk", NULL, PRCMU_IPI2CCLK,
 				CLK_IS_ROOT);
+	prcmu_clk[PRCMU_IPI2CCLK] = clk;
 
 	clk = clk_reg_prcmu_gate("dsialtclk", NULL, PRCMU_DSIALTCLK,
 				CLK_IS_ROOT);
+	prcmu_clk[PRCMU_DSIALTCLK] = clk;
 
 	clk = clk_reg_prcmu_gate("dmaclk", NULL, PRCMU_DMACLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_DMACLK] = clk;
 
 	clk = clk_reg_prcmu_gate("b2r2clk", NULL, PRCMU_B2R2CLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_B2R2CLK] = clk;
 
 	clk = clk_reg_prcmu_scalable("tvclk", NULL, PRCMU_TVCLK, 0,
 				CLK_IS_ROOT|CLK_SET_RATE_GATE);
+	prcmu_clk[PRCMU_TVCLK] = clk;
 
 	clk = clk_reg_prcmu_gate("sspclk", NULL, PRCMU_SSPCLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_SSPCLK] = clk;
 
 	clk = clk_reg_prcmu_gate("rngclk", NULL, PRCMU_RNGCLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_RNGCLK] = clk;
 
 	clk = clk_reg_prcmu_gate("uiccclk", NULL, PRCMU_UICCCLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_UICCCLK] = clk;
 
 	clk = clk_reg_prcmu_gate("timclk", NULL, PRCMU_TIMCLK, CLK_IS_ROOT);
+	prcmu_clk[PRCMU_TIMCLK] = clk;
 
 	clk = clk_reg_prcmu_opp_volt_scalable("sdmmcclk", NULL, PRCMU_SDMMCCLK,
 					100000000,
 					CLK_IS_ROOT|CLK_SET_RATE_GATE);
+	prcmu_clk[PRCMU_SDMMCCLK] = clk;
 
 	clk = clk_reg_prcmu_scalable("dsi_pll", "hdmiclk",
 				PRCMU_PLLDSI, 0, CLK_SET_RATE_GATE);
-
+	prcmu_clk[PRCMU_PLLDSI] = clk;
 
 	clk = clk_reg_prcmu_scalable("dsi0clk", "dsi_pll",
 				PRCMU_DSI0CLK, 0, CLK_SET_RATE_GATE);
+	prcmu_clk[PRCMU_DSI0CLK] = clk;
 
 	clk = clk_reg_prcmu_scalable("dsi1clk", "dsi_pll",
 				PRCMU_DSI1CLK, 0, CLK_SET_RATE_GATE);
+	prcmu_clk[PRCMU_DSI1CLK] = clk;
 
 	clk = clk_reg_prcmu_scalable("dsi0escclk", "tvclk",
 				PRCMU_DSI0ESCCLK, 0, CLK_SET_RATE_GATE);
+	prcmu_clk[PRCMU_DSI0ESCCLK] = clk;
 
 	clk = clk_reg_prcmu_scalable("dsi1escclk", "tvclk",
 				PRCMU_DSI1ESCCLK, 0, CLK_SET_RATE_GATE);
+	prcmu_clk[PRCMU_DSI1ESCCLK] = clk;
 
 	clk = clk_reg_prcmu_scalable("dsi2escclk", "tvclk",
 				PRCMU_DSI2ESCCLK, 0, CLK_SET_RATE_GATE);
+	prcmu_clk[PRCMU_DSI2ESCCLK] = clk;
 
 	clk = clk_reg_prcmu_scalable_rate("armss", NULL,
 				PRCMU_ARMSS, 0, CLK_IS_ROOT|CLK_IGNORE_UNUSED);
@@ -417,6 +457,12 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
 			clkrst6_base, BIT(0), CLK_SET_RATE_GATE);
 
 	for_each_child_of_node(np, child) {
-		/* Place holder for supported nodes. */
+		static struct clk_onecell_data clk_data;
+
+		if (!of_node_cmp(child->name, "prcmu-clock")) {
+			clk_data.clks = prcmu_clk;
+			clk_data.clk_num = ARRAY_SIZE(prcmu_clk);
+			of_clk_add_provider(child, of_clk_src_onecell_get, &clk_data);
+		}
 	}
 }
-- 
cgit 


From 2d0803001f0736c22ef6c05d8ae683166059f0bf Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 17 Sep 2013 10:31:39 +0100
Subject: clk: ux500: Add Device Tree support for the PRCC Peripheral clock

This patch enables clocks to be specified from Device Tree via phandles
to the "prcc-periph-clock" node.

Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/clk/ux500/u8500_of_clk.c | 52 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/drivers/clk/ux500/u8500_of_clk.c b/drivers/clk/ux500/u8500_of_clk.c
index f5534fdaba6b..dcc736afde77 100644
--- a/drivers/clk/ux500/u8500_of_clk.c
+++ b/drivers/clk/ux500/u8500_of_clk.c
@@ -15,10 +15,16 @@
 #include <linux/platform_data/clk-ux500.h>
 #include "clk.h"
 
+#define PRCC_NUM_PERIPH_CLUSTERS 6
+#define PRCC_PERIPHS_PER_CLUSTER 32
+
 static struct clk *prcmu_clk[PRCMU_NUM_CLKS];
+static struct clk *prcc_pclk[(PRCC_NUM_PERIPH_CLUSTERS + 1) * PRCC_PERIPHS_PER_CLUSTER];
 
 #define PRCC_SHOW(clk, base, bit) \
 	clk[(base * PRCC_PERIPHS_PER_CLUSTER) + bit]
+#define PRCC_PCLK_STORE(clk, base, bit)	\
+	prcc_pclk[(base * PRCC_PERIPHS_PER_CLUSTER) + bit] = clk
 
 struct clk *ux500_twocell_get(struct of_phandle_args *clkspec, void *data)
 {
@@ -237,135 +243,179 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
 	/* PRCC P-clocks */
 	clk = clk_reg_prcc_pclk("p1_pclk0", "per1clk", clkrst1_base,
 				BIT(0), 0);
+	PRCC_PCLK_STORE(clk, 1, 0);
 
 	clk = clk_reg_prcc_pclk("p1_pclk1", "per1clk", clkrst1_base,
 				BIT(1), 0);
+	PRCC_PCLK_STORE(clk, 1, 1);
 
 	clk = clk_reg_prcc_pclk("p1_pclk2", "per1clk", clkrst1_base,
 				BIT(2), 0);
+	PRCC_PCLK_STORE(clk, 1, 2);
 
 	clk = clk_reg_prcc_pclk("p1_pclk3", "per1clk", clkrst1_base,
 				BIT(3), 0);
+	PRCC_PCLK_STORE(clk, 1, 3);
 
 	clk = clk_reg_prcc_pclk("p1_pclk4", "per1clk", clkrst1_base,
 				BIT(4), 0);
+	PRCC_PCLK_STORE(clk, 1, 4);
 
 	clk = clk_reg_prcc_pclk("p1_pclk5", "per1clk", clkrst1_base,
 				BIT(5), 0);
+	PRCC_PCLK_STORE(clk, 1, 5);
 
 	clk = clk_reg_prcc_pclk("p1_pclk6", "per1clk", clkrst1_base,
 				BIT(6), 0);
+	PRCC_PCLK_STORE(clk, 1, 6);
 
 	clk = clk_reg_prcc_pclk("p1_pclk7", "per1clk", clkrst1_base,
 				BIT(7), 0);
+	PRCC_PCLK_STORE(clk, 1, 7);
 
 	clk = clk_reg_prcc_pclk("p1_pclk8", "per1clk", clkrst1_base,
 				BIT(8), 0);
+	PRCC_PCLK_STORE(clk, 1, 8);
 
 	clk = clk_reg_prcc_pclk("p1_pclk9", "per1clk", clkrst1_base,
 				BIT(9), 0);
+	PRCC_PCLK_STORE(clk, 1, 9);
 
 	clk = clk_reg_prcc_pclk("p1_pclk10", "per1clk", clkrst1_base,
 				BIT(10), 0);
+	PRCC_PCLK_STORE(clk, 1, 10);
 
 	clk = clk_reg_prcc_pclk("p1_pclk11", "per1clk", clkrst1_base,
 				BIT(11), 0);
+	PRCC_PCLK_STORE(clk, 1, 11);
 
 	clk = clk_reg_prcc_pclk("p2_pclk0", "per2clk", clkrst2_base,
 				BIT(0), 0);
+	PRCC_PCLK_STORE(clk, 2, 0);
 
 	clk = clk_reg_prcc_pclk("p2_pclk1", "per2clk", clkrst2_base,
 				BIT(1), 0);
+	PRCC_PCLK_STORE(clk, 2, 1);
 
 	clk = clk_reg_prcc_pclk("p2_pclk2", "per2clk", clkrst2_base,
 				BIT(2), 0);
+	PRCC_PCLK_STORE(clk, 2, 2);
 
 	clk = clk_reg_prcc_pclk("p2_pclk3", "per2clk", clkrst2_base,
 				BIT(3), 0);
+	PRCC_PCLK_STORE(clk, 2, 3);
 
 	clk = clk_reg_prcc_pclk("p2_pclk4", "per2clk", clkrst2_base,
 				BIT(4), 0);
+	PRCC_PCLK_STORE(clk, 2, 4);
 
 	clk = clk_reg_prcc_pclk("p2_pclk5", "per2clk", clkrst2_base,
 				BIT(5), 0);
+	PRCC_PCLK_STORE(clk, 2, 5);
 
 	clk = clk_reg_prcc_pclk("p2_pclk6", "per2clk", clkrst2_base,
 				BIT(6), 0);
+	PRCC_PCLK_STORE(clk, 2, 6);
 
 	clk = clk_reg_prcc_pclk("p2_pclk7", "per2clk", clkrst2_base,
 				BIT(7), 0);
+	PRCC_PCLK_STORE(clk, 2, 7);
 
 	clk = clk_reg_prcc_pclk("p2_pclk8", "per2clk", clkrst2_base,
 				BIT(8), 0);
+	PRCC_PCLK_STORE(clk, 2, 8);
 
 	clk = clk_reg_prcc_pclk("p2_pclk9", "per2clk", clkrst2_base,
 				BIT(9), 0);
+	PRCC_PCLK_STORE(clk, 2, 9);
 
 	clk = clk_reg_prcc_pclk("p2_pclk10", "per2clk", clkrst2_base,
 				BIT(10), 0);
+	PRCC_PCLK_STORE(clk, 2, 10);
 
 	clk = clk_reg_prcc_pclk("p2_pclk11", "per2clk", clkrst2_base,
 				BIT(11), 0);
+	PRCC_PCLK_STORE(clk, 2, 1);
 
 	clk = clk_reg_prcc_pclk("p2_pclk12", "per2clk", clkrst2_base,
 				BIT(12), 0);
+	PRCC_PCLK_STORE(clk, 2, 12);
 
 	clk = clk_reg_prcc_pclk("p3_pclk0", "per3clk", clkrst3_base,
 				BIT(0), 0);
+	PRCC_PCLK_STORE(clk, 3, 0);
 
 	clk = clk_reg_prcc_pclk("p3_pclk1", "per3clk", clkrst3_base,
 				BIT(1), 0);
+	PRCC_PCLK_STORE(clk, 3, 1);
 
 	clk = clk_reg_prcc_pclk("p3_pclk2", "per3clk", clkrst3_base,
 				BIT(2), 0);
+	PRCC_PCLK_STORE(clk, 3, 2);
 
 	clk = clk_reg_prcc_pclk("p3_pclk3", "per3clk", clkrst3_base,
 				BIT(3), 0);
+	PRCC_PCLK_STORE(clk, 3, 3);
 
 	clk = clk_reg_prcc_pclk("p3_pclk4", "per3clk", clkrst3_base,
 				BIT(4), 0);
+	PRCC_PCLK_STORE(clk, 3, 4);
 
 	clk = clk_reg_prcc_pclk("p3_pclk5", "per3clk", clkrst3_base,
 				BIT(5), 0);
+	PRCC_PCLK_STORE(clk, 3, 5);
 
 	clk = clk_reg_prcc_pclk("p3_pclk6", "per3clk", clkrst3_base,
 				BIT(6), 0);
+	PRCC_PCLK_STORE(clk, 3, 6);
 
 	clk = clk_reg_prcc_pclk("p3_pclk7", "per3clk", clkrst3_base,
 				BIT(7), 0);
+	PRCC_PCLK_STORE(clk, 3, 7);
 
 	clk = clk_reg_prcc_pclk("p3_pclk8", "per3clk", clkrst3_base,
 				BIT(8), 0);
+	PRCC_PCLK_STORE(clk, 3, 8);
 
 	clk = clk_reg_prcc_pclk("p5_pclk0", "per5clk", clkrst5_base,
 				BIT(0), 0);
+	PRCC_PCLK_STORE(clk, 5, 0);
 
 	clk = clk_reg_prcc_pclk("p5_pclk1", "per5clk", clkrst5_base,
 				BIT(1), 0);
+	PRCC_PCLK_STORE(clk, 5, 1);
 
 	clk = clk_reg_prcc_pclk("p6_pclk0", "per6clk", clkrst6_base,
 				BIT(0), 0);
+	PRCC_PCLK_STORE(clk, 6, 0);
 
 	clk = clk_reg_prcc_pclk("p6_pclk1", "per6clk", clkrst6_base,
 				BIT(1), 0);
+	PRCC_PCLK_STORE(clk, 6, 1);
 
 	clk = clk_reg_prcc_pclk("p6_pclk2", "per6clk", clkrst6_base,
 				BIT(2), 0);
+	PRCC_PCLK_STORE(clk, 6, 2);
 
 	clk = clk_reg_prcc_pclk("p6_pclk3", "per6clk", clkrst6_base,
 				BIT(3), 0);
+	PRCC_PCLK_STORE(clk, 6, 3);
 
 	clk = clk_reg_prcc_pclk("p6_pclk4", "per6clk", clkrst6_base,
 				BIT(4), 0);
+	PRCC_PCLK_STORE(clk, 6, 4);
 
 	clk = clk_reg_prcc_pclk("p6_pclk5", "per6clk", clkrst6_base,
 				BIT(5), 0);
+	PRCC_PCLK_STORE(clk, 6, 5);
 
 	clk = clk_reg_prcc_pclk("p6_pclk6", "per6clk", clkrst6_base,
 				BIT(6), 0);
+	PRCC_PCLK_STORE(clk, 6, 6);
 
 	clk = clk_reg_prcc_pclk("p6_pclk7", "per6clk", clkrst6_base,
 				BIT(7), 0);
+	PRCC_PCLK_STORE(clk, 6, 7);
 
 	/* PRCC K-clocks
 	 *
@@ -464,5 +514,7 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
 			clk_data.clk_num = ARRAY_SIZE(prcmu_clk);
 			of_clk_add_provider(child, of_clk_src_onecell_get, &clk_data);
 		}
+		if (!of_node_cmp(child->name, "prcc-periph-clock"))
+			of_clk_add_provider(child, ux500_twocell_get, prcc_pclk);
 	}
 }
-- 
cgit 


From 89da2dfafc9ffc79067e196053431d957c77db45 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 17 Sep 2013 10:33:05 +0100
Subject: clk: ux500: Add Device Tree support for the PRCC Kernel clock

This patch enables clocks to be specified from Device Tree via phandles
to the "prcc-kernel-clock" node.

Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/clk/ux500/u8500_of_clk.c | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/drivers/clk/ux500/u8500_of_clk.c b/drivers/clk/ux500/u8500_of_clk.c
index dcc736afde77..4fcafd007656 100644
--- a/drivers/clk/ux500/u8500_of_clk.c
+++ b/drivers/clk/ux500/u8500_of_clk.c
@@ -20,11 +20,14 @@
 
 static struct clk *prcmu_clk[PRCMU_NUM_CLKS];
 static struct clk *prcc_pclk[(PRCC_NUM_PERIPH_CLUSTERS + 1) * PRCC_PERIPHS_PER_CLUSTER];
+static struct clk *prcc_kclk[(PRCC_NUM_PERIPH_CLUSTERS + 1) * PRCC_PERIPHS_PER_CLUSTER];
 
 #define PRCC_SHOW(clk, base, bit) \
 	clk[(base * PRCC_PERIPHS_PER_CLUSTER) + bit]
 #define PRCC_PCLK_STORE(clk, base, bit)	\
 	prcc_pclk[(base * PRCC_PERIPHS_PER_CLUSTER) + bit] = clk
+#define PRCC_KCLK_STORE(clk, base, bit)        \
+	prcc_kclk[(base * PRCC_PERIPHS_PER_CLUSTER) + bit] = clk
 
 struct clk *ux500_twocell_get(struct of_phandle_args *clkspec, void *data)
 {
@@ -428,83 +431,109 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
 	/* Periph1 */
 	clk = clk_reg_prcc_kclk("p1_uart0_kclk", "uartclk",
 			clkrst1_base, BIT(0), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 1, 0);
 
 	clk = clk_reg_prcc_kclk("p1_uart1_kclk", "uartclk",
 			clkrst1_base, BIT(1), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 1, 1);
 
 	clk = clk_reg_prcc_kclk("p1_i2c1_kclk", "i2cclk",
 			clkrst1_base, BIT(2), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 1, 2);
 
 	clk = clk_reg_prcc_kclk("p1_msp0_kclk", "msp02clk",
 			clkrst1_base, BIT(3), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 1, 3);
 
 	clk = clk_reg_prcc_kclk("p1_msp1_kclk", "msp1clk",
 			clkrst1_base, BIT(4), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 1, 4);
 
 	clk = clk_reg_prcc_kclk("p1_sdi0_kclk", "sdmmcclk",
 			clkrst1_base, BIT(5), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 1, 5);
 
 	clk = clk_reg_prcc_kclk("p1_i2c2_kclk", "i2cclk",
 			clkrst1_base, BIT(6), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 1, 6);
 
 	clk = clk_reg_prcc_kclk("p1_slimbus0_kclk", "slimclk",
 			clkrst1_base, BIT(8), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 1, 8);
 
 	clk = clk_reg_prcc_kclk("p1_i2c4_kclk", "i2cclk",
 			clkrst1_base, BIT(9), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 1, 9);
 
 	clk = clk_reg_prcc_kclk("p1_msp3_kclk", "msp1clk",
 			clkrst1_base, BIT(10), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 1, 10);
 
 	/* Periph2 */
 	clk = clk_reg_prcc_kclk("p2_i2c3_kclk", "i2cclk",
 			clkrst2_base, BIT(0), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 2, 0);
 
 	clk = clk_reg_prcc_kclk("p2_sdi4_kclk", "sdmmcclk",
 			clkrst2_base, BIT(2), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 2, 2);
 
 	clk = clk_reg_prcc_kclk("p2_msp2_kclk", "msp02clk",
 			clkrst2_base, BIT(3), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 2, 3);
 
 	clk = clk_reg_prcc_kclk("p2_sdi1_kclk", "sdmmcclk",
 			clkrst2_base, BIT(4), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 2, 4);
 
 	clk = clk_reg_prcc_kclk("p2_sdi3_kclk", "sdmmcclk",
 			clkrst2_base, BIT(5), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 2, 5);
 
 	/* Note that rate is received from parent. */
 	clk = clk_reg_prcc_kclk("p2_ssirx_kclk", "hsirxclk",
 			clkrst2_base, BIT(6),
 			CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT);
+	PRCC_KCLK_STORE(clk, 2, 6);
+
 	clk = clk_reg_prcc_kclk("p2_ssitx_kclk", "hsitxclk",
 			clkrst2_base, BIT(7),
 			CLK_SET_RATE_GATE|CLK_SET_RATE_PARENT);
+	PRCC_KCLK_STORE(clk, 2, 7);
 
 	/* Periph3 */
 	clk = clk_reg_prcc_kclk("p3_ssp0_kclk", "sspclk",
 			clkrst3_base, BIT(1), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 3, 1);
 
 	clk = clk_reg_prcc_kclk("p3_ssp1_kclk", "sspclk",
 			clkrst3_base, BIT(2), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 3, 2);
 
 	clk = clk_reg_prcc_kclk("p3_i2c0_kclk", "i2cclk",
 			clkrst3_base, BIT(3), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 3, 3);
 
 	clk = clk_reg_prcc_kclk("p3_sdi2_kclk", "sdmmcclk",
 			clkrst3_base, BIT(4), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 3, 4);
 
 	clk = clk_reg_prcc_kclk("p3_ske_kclk", "rtc32k",
 			clkrst3_base, BIT(5), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 3, 5);
 
 	clk = clk_reg_prcc_kclk("p3_uart2_kclk", "uartclk",
 			clkrst3_base, BIT(6), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 3, 6);
 
 	clk = clk_reg_prcc_kclk("p3_sdi5_kclk", "sdmmcclk",
 			clkrst3_base, BIT(7), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 3, 7);
 
 	/* Periph6 */
 	clk = clk_reg_prcc_kclk("p3_rng_kclk", "rngclk",
 			clkrst6_base, BIT(0), CLK_SET_RATE_GATE);
+	PRCC_KCLK_STORE(clk, 6, 0);
 
 	for_each_child_of_node(np, child) {
 		static struct clk_onecell_data clk_data;
@@ -516,5 +545,8 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
 		}
 		if (!of_node_cmp(child->name, "prcc-periph-clock"))
 			of_clk_add_provider(child, ux500_twocell_get, prcc_pclk);
+
+		if (!of_node_cmp(child->name, "prcc-kernel-clock"))
+			of_clk_add_provider(child, ux500_twocell_get, prcc_kclk);
 	}
 }
-- 
cgit 


From d625a730675decc49f25f761d0e2e20e45e0ff46 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 17 Sep 2013 10:34:24 +0100
Subject: clk: ux500: Add Device Tree support for the RTC clock

This patch enables the RTC fixed frequency clock to be specified from
Device Tree via phandles to the "rtc32k-clock" node.

Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/clk/ux500/u8500_of_clk.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/ux500/u8500_of_clk.c b/drivers/clk/ux500/u8500_of_clk.c
index 4fcafd007656..fc647cf1dd97 100644
--- a/drivers/clk/ux500/u8500_of_clk.c
+++ b/drivers/clk/ux500/u8500_of_clk.c
@@ -60,7 +60,7 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
 	struct device_node *np = NULL;
 	struct device_node *child = NULL;
 	const char *sgaclk_parent = NULL;
-	struct clk *clk;
+	struct clk *clk, *rtc_clk;
 
 	if (of_have_populated_dt())
 		np = of_find_matching_node(NULL, u8500_clk_of_match);
@@ -84,7 +84,7 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
 
 	/* FIXME: Add sys, ulp and int clocks here. */
 
-	clk = clk_register_fixed_rate(NULL, "rtc32k", "NULL",
+	rtc_clk = clk_register_fixed_rate(NULL, "rtc32k", "NULL",
 				CLK_IS_ROOT|CLK_IGNORE_UNUSED,
 				32768);
 
@@ -548,5 +548,8 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
 
 		if (!of_node_cmp(child->name, "prcc-kernel-clock"))
 			of_clk_add_provider(child, ux500_twocell_get, prcc_kclk);
+
+		if (!of_node_cmp(child->name, "rtc32k-clock"))
+			of_clk_add_provider(child, of_clk_src_simple_get, rtc_clk);
 	}
 }
-- 
cgit 


From 4e33466095e045520c441f357f2b8f8ec2e363c2 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 17 Sep 2013 10:35:00 +0100
Subject: clk: ux500: Add Device Tree support for the TWD clock

This patch enables the TWD fixed factor clock to be specified from
Device Tree via phandles to the "smp-twd-clock" node.

Acked-by: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/clk/ux500/u8500_of_clk.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/clk/ux500/u8500_of_clk.c b/drivers/clk/ux500/u8500_of_clk.c
index fc647cf1dd97..0769db85e772 100644
--- a/drivers/clk/ux500/u8500_of_clk.c
+++ b/drivers/clk/ux500/u8500_of_clk.c
@@ -60,7 +60,7 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
 	struct device_node *np = NULL;
 	struct device_node *child = NULL;
 	const char *sgaclk_parent = NULL;
-	struct clk *clk, *rtc_clk;
+	struct clk *clk, *rtc_clk, *twd_clk;
 
 	if (of_have_populated_dt())
 		np = of_find_matching_node(NULL, u8500_clk_of_match);
@@ -234,7 +234,7 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
 	clk = clk_reg_prcmu_scalable_rate("armss", NULL,
 				PRCMU_ARMSS, 0, CLK_IS_ROOT|CLK_IGNORE_UNUSED);
 
-	clk = clk_register_fixed_factor(NULL, "smp_twd", "armss",
+	twd_clk = clk_register_fixed_factor(NULL, "smp_twd", "armss",
 				CLK_IGNORE_UNUSED, 1, 2);
 
 	/*
@@ -551,5 +551,8 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
 
 		if (!of_node_cmp(child->name, "rtc32k-clock"))
 			of_clk_add_provider(child, of_clk_src_simple_get, rtc_clk);
+
+		if (!of_node_cmp(child->name, "smp-twd-clock"))
+			of_clk_add_provider(child, of_clk_src_simple_get, twd_clk);
 	}
 }
-- 
cgit 


From b44b66321fc222c4a653afd3dbb4bd2e9bdd523b Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 08:58:18 +0100
Subject: usb: musb: ux500: Don't supply a con_id when requesting the clock

If we supply a con_id then the clock framework will search for that name
in MUSB's Device Tree node for the 'clock-names' property. If it's absent
the clock request will fail. However, if we don't supply the con_id then
clk_get() will call into clk_sys() which will use the device name to
search for the appropriate clock, which is much more natural than forcing
'usb'.

Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/usb/musb/ux500.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c
index 59256b12f746..c844499e4479 100644
--- a/drivers/usb/musb/ux500.c
+++ b/drivers/usb/musb/ux500.c
@@ -259,7 +259,7 @@ static int ux500_probe(struct platform_device *pdev)
 		goto err1;
 	}
 
-	clk = clk_get(&pdev->dev, "usb");
+	clk = clk_get(&pdev->dev, NULL);
 	if (IS_ERR(clk)) {
 		dev_err(&pdev->dev, "failed to get clock\n");
 		ret = PTR_ERR(clk);
-- 
cgit 


From 1dd416645ca7381ae981f1b31f16ed058d47bd49 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 17 Sep 2013 10:41:42 +0100
Subject: ARM: ux500: Call appropriate clock initialisation based on DT or !DT
 booting

The ux500 platform will soon be converted to Device Tree only. When that
happens the old clock initialisation will be ripped out. In the meantime
however, we have to make a decision and call the appropriate
initialisation code manually.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/cpu.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c
index 5d7eebcabc63..0e65822394fc 100644
--- a/arch/arm/mach-ux500/cpu.c
+++ b/arch/arm/mach-ux500/cpu.c
@@ -78,9 +78,17 @@ void __init ux500_init_irq(void)
 	if (cpu_is_u8500_family()) {
 		prcmu_early_init(U8500_PRCMU_BASE, SZ_8K - 1);
 		ux500_pm_init(U8500_PRCMU_BASE, SZ_8K - 1);
-		u8500_clk_init(U8500_CLKRST1_BASE, U8500_CLKRST2_BASE,
-			       U8500_CLKRST3_BASE, U8500_CLKRST5_BASE,
-			       U8500_CLKRST6_BASE);
+
+		if (of_have_populated_dt())
+			u8500_of_clk_init(U8500_CLKRST1_BASE,
+					  U8500_CLKRST2_BASE,
+					  U8500_CLKRST3_BASE,
+					  U8500_CLKRST5_BASE,
+					  U8500_CLKRST6_BASE);
+		else
+			u8500_clk_init(U8500_CLKRST1_BASE, U8500_CLKRST2_BASE,
+				       U8500_CLKRST3_BASE, U8500_CLKRST5_BASE,
+				       U8500_CLKRST6_BASE);
 	} else if (cpu_is_u9540()) {
 		prcmu_early_init(U8500_PRCMU_BASE, SZ_8K - 1);
 		ux500_pm_init(U8500_PRCMU_BASE, SZ_8K - 1);
-- 
cgit 


From 5867fe1882df74e84a537d1d5c1fcbe8e3e7c11f Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 5 Jun 2013 12:29:18 +0100
Subject: ARM: ux500: Remove AUXDATA relating to GPIO clock-name bindings

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/cpu-db8500.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 301c3460d96a..0390b1aaf4a1 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -228,15 +228,6 @@ static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
 	OF_DEV_AUXDATA("arm,pl18x", 0x80005000, "sdi2",  NULL),
 	OF_DEV_AUXDATA("arm,pl18x", 0x80114000, "sdi4",  NULL),
 	/* Requires clock name bindings. */
-	OF_DEV_AUXDATA("st,nomadik-gpio", 0x8012e000, "gpio.0", NULL),
-	OF_DEV_AUXDATA("st,nomadik-gpio", 0x8012e080, "gpio.1", NULL),
-	OF_DEV_AUXDATA("st,nomadik-gpio", 0x8000e000, "gpio.2", NULL),
-	OF_DEV_AUXDATA("st,nomadik-gpio", 0x8000e080, "gpio.3", NULL),
-	OF_DEV_AUXDATA("st,nomadik-gpio", 0x8000e100, "gpio.4", NULL),
-	OF_DEV_AUXDATA("st,nomadik-gpio", 0x8000e180, "gpio.5", NULL),
-	OF_DEV_AUXDATA("st,nomadik-gpio", 0x8011e000, "gpio.6", NULL),
-	OF_DEV_AUXDATA("st,nomadik-gpio", 0x8011e080, "gpio.7", NULL),
-	OF_DEV_AUXDATA("st,nomadik-gpio", 0xa03fe000, "gpio.8", NULL),
 	OF_DEV_AUXDATA("st,nomadik-i2c", 0x80004000, "nmk-i2c.0", NULL),
 	OF_DEV_AUXDATA("st,nomadik-i2c", 0x80122000, "nmk-i2c.1", NULL),
 	OF_DEV_AUXDATA("st,nomadik-i2c", 0x80128000, "nmk-i2c.2", NULL),
-- 
cgit 


From 7d770795df1dfca2968f795ce54a0498bd866d22 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 6 Jun 2013 12:38:32 +0100
Subject: ARM: ux500: Remove AUXDATA relating to UART clock-name bindings

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/cpu-db8500.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 0390b1aaf4a1..87bba2e0f035 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -219,9 +219,6 @@ static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
 	/* Requires call-back bindings. */
 	OF_DEV_AUXDATA("arm,cortex-a9-pmu", 0, "arm-pmu", &db8500_pmu_platdata),
 	/* Requires DMA bindings. */
-	OF_DEV_AUXDATA("arm,pl011", 0x80120000, "uart0", NULL),
-	OF_DEV_AUXDATA("arm,pl011", 0x80121000, "uart1", NULL),
-	OF_DEV_AUXDATA("arm,pl011", 0x80007000, "uart2", NULL),
 	OF_DEV_AUXDATA("arm,pl022", 0x80002000, "ssp0",  &ssp0_plat),
 	OF_DEV_AUXDATA("arm,pl18x", 0x80126000, "sdi0",  NULL),
 	OF_DEV_AUXDATA("arm,pl18x", 0x80118000, "sdi1",  NULL),
-- 
cgit 


From a6c9fe3666e75ed7feca000cd8e33227219e65cf Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 3 Jun 2013 14:01:52 +0100
Subject: ARM: ux500: Remove AUXDATA relating to I2C clock-name bindings

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/cpu-db8500.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 87bba2e0f035..01ceac4b03ee 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -225,11 +225,6 @@ static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
 	OF_DEV_AUXDATA("arm,pl18x", 0x80005000, "sdi2",  NULL),
 	OF_DEV_AUXDATA("arm,pl18x", 0x80114000, "sdi4",  NULL),
 	/* Requires clock name bindings. */
-	OF_DEV_AUXDATA("st,nomadik-i2c", 0x80004000, "nmk-i2c.0", NULL),
-	OF_DEV_AUXDATA("st,nomadik-i2c", 0x80122000, "nmk-i2c.1", NULL),
-	OF_DEV_AUXDATA("st,nomadik-i2c", 0x80128000, "nmk-i2c.2", NULL),
-	OF_DEV_AUXDATA("st,nomadik-i2c", 0x80110000, "nmk-i2c.3", NULL),
-	OF_DEV_AUXDATA("st,nomadik-i2c", 0x8012a000, "nmk-i2c.4", NULL),
 	OF_DEV_AUXDATA("stericsson,db8500-musb", 0xa03e0000, "musb-ux500.0", NULL),
 	OF_DEV_AUXDATA("stericsson,db8500-prcmu", 0x80157000, "db8500-prcmu",
 			&db8500_prcmu_pdata),
-- 
cgit 


From acab2f6f3690fc321721acf9f3a1d0d79b19c7ca Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 13:37:12 +0100
Subject: ARM: ux500: Relocate AUXDATA relating to MSP (Audio)

MSP no longer requires clock-name bindings, so we need to move them to
a more appropriate header indicating that we're still passing DMA
related platform data to them.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/cpu-db8500.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 01ceac4b03ee..1026d8075101 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -224,6 +224,14 @@ static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
 	OF_DEV_AUXDATA("arm,pl18x", 0x80118000, "sdi1",  NULL),
 	OF_DEV_AUXDATA("arm,pl18x", 0x80005000, "sdi2",  NULL),
 	OF_DEV_AUXDATA("arm,pl18x", 0x80114000, "sdi4",  NULL),
+	OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80123000,
+		       "ux500-msp-i2s.0", &msp0_platform_data),
+	OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80124000,
+		       "ux500-msp-i2s.1", &msp1_platform_data),
+	OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80117000,
+		       "ux500-msp-i2s.2", &msp2_platform_data),
+	OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80125000,
+		       "ux500-msp-i2s.3", &msp3_platform_data),
 	/* Requires clock name bindings. */
 	OF_DEV_AUXDATA("stericsson,db8500-musb", 0xa03e0000, "musb-ux500.0", NULL),
 	OF_DEV_AUXDATA("stericsson,db8500-prcmu", 0x80157000, "db8500-prcmu",
@@ -236,15 +244,6 @@ static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
 	/* Requires device name bindings. */
 	OF_DEV_AUXDATA("stericsson,db8500-pinctrl", U8500_PRCMU_BASE,
 		"pinctrl-db8500", NULL),
-	/* Requires clock name and DMA bindings. */
-	OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80123000,
-		"ux500-msp-i2s.0", &msp0_platform_data),
-	OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80124000,
-		"ux500-msp-i2s.1", &msp1_platform_data),
-	OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80117000,
-		"ux500-msp-i2s.2", &msp2_platform_data),
-	OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80125000,
-		"ux500-msp-i2s.3", &msp3_platform_data),
 	/* Requires clock name bindings and channel address lookup table. */
 	OF_DEV_AUXDATA("stericsson,db8500-dma40", 0x801C0000, "dma40.0", NULL),
 	{},
-- 
cgit 


From ce16feb8510cbbcd090c2320c35db2fbbffde210 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 6 Jun 2013 12:45:03 +0100
Subject: ARM: ux500: Remove AUXDATA relating to SDI (MMC) clock-name bindings

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/cpu-db8500.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 1026d8075101..b4c6eb92abef 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -220,10 +220,6 @@ static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
 	OF_DEV_AUXDATA("arm,cortex-a9-pmu", 0, "arm-pmu", &db8500_pmu_platdata),
 	/* Requires DMA bindings. */
 	OF_DEV_AUXDATA("arm,pl022", 0x80002000, "ssp0",  &ssp0_plat),
-	OF_DEV_AUXDATA("arm,pl18x", 0x80126000, "sdi0",  NULL),
-	OF_DEV_AUXDATA("arm,pl18x", 0x80118000, "sdi1",  NULL),
-	OF_DEV_AUXDATA("arm,pl18x", 0x80005000, "sdi2",  NULL),
-	OF_DEV_AUXDATA("arm,pl18x", 0x80114000, "sdi4",  NULL),
 	OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80123000,
 		       "ux500-msp-i2s.0", &msp0_platform_data),
 	OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80124000,
-- 
cgit 


From 0a921c13e82f6b741a71a7ee4743f0076c0ccb77 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 3 Jun 2013 14:04:20 +0100
Subject: ARM: ux500: Remove AUXDATA relating to USB clock-name bindings

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/cpu-db8500.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index b4c6eb92abef..7908d592b92c 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -229,7 +229,6 @@ static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
 	OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80125000,
 		       "ux500-msp-i2s.3", &msp3_platform_data),
 	/* Requires clock name bindings. */
-	OF_DEV_AUXDATA("stericsson,db8500-musb", 0xa03e0000, "musb-ux500.0", NULL),
 	OF_DEV_AUXDATA("stericsson,db8500-prcmu", 0x80157000, "db8500-prcmu",
 			&db8500_prcmu_pdata),
 	OF_DEV_AUXDATA("smsc,lan9115", 0x50000000, "smsc911x.0", NULL),
-- 
cgit 


From 4c544c95f22e8d64c8ef11055bfcf83c09ffc722 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 5 Jun 2013 12:30:38 +0100
Subject: ARM: ux500: Remove AUXDATA relating to Ethernet clock-name bindings

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/cpu-db8500.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 7908d592b92c..a508e25d8ef4 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -231,7 +231,6 @@ static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
 	/* Requires clock name bindings. */
 	OF_DEV_AUXDATA("stericsson,db8500-prcmu", 0x80157000, "db8500-prcmu",
 			&db8500_prcmu_pdata),
-	OF_DEV_AUXDATA("smsc,lan9115", 0x50000000, "smsc911x.0", NULL),
 	OF_DEV_AUXDATA("stericsson,ux500-cryp", 0xa03cb000, "cryp1", NULL),
 	OF_DEV_AUXDATA("stericsson,ux500-hash", 0xa03c2000, "hash1", NULL),
 	OF_DEV_AUXDATA("stericsson,snd-soc-mop500", 0, "snd-soc-mop500.0",
-- 
cgit 


From fb19ac14c41a339bbbfca74b731c70a7ac114d32 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 3 Jun 2013 14:05:57 +0100
Subject: ARM: ux500: Remove AUXDATA relating to DMA clock-name bindings

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/cpu-db8500.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index a508e25d8ef4..e10f660f4811 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -238,8 +238,6 @@ static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
 	/* Requires device name bindings. */
 	OF_DEV_AUXDATA("stericsson,db8500-pinctrl", U8500_PRCMU_BASE,
 		"pinctrl-db8500", NULL),
-	/* Requires clock name bindings and channel address lookup table. */
-	OF_DEV_AUXDATA("stericsson,db8500-dma40", 0x801C0000, "dma40.0", NULL),
 	{},
 };
 
-- 
cgit 


From 1b1d2e838ce5e6cf3c79988ba95be3b9d1446e18 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 21 Aug 2013 11:32:49 +0100
Subject: ARM: ux500: Reclassify PRCMU AUXDATA entry

We still need to utilise the AUXDATA system for the PRCMU to pass
through platform data which can not be DT:ed i.e. regulator initialisation
values. All we're doing in this patch is changing the comment header to be
more accurate.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/cpu-db8500.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index e10f660f4811..37d604a1439f 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -228,7 +228,7 @@ static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
 		       "ux500-msp-i2s.2", &msp2_platform_data),
 	OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80125000,
 		       "ux500-msp-i2s.3", &msp3_platform_data),
-	/* Requires clock name bindings. */
+	/* Requires non-DT:able platform data. */
 	OF_DEV_AUXDATA("stericsson,db8500-prcmu", 0x80157000, "db8500-prcmu",
 			&db8500_prcmu_pdata),
 	OF_DEV_AUXDATA("stericsson,ux500-cryp", 0xa03cb000, "cryp1", NULL),
-- 
cgit 


From 65eb70396848e7c10b7466fab75109bd5b1bb9df Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 13:38:50 +0100
Subject: ARM: ux500: Remove SSP AUXDATA pertaining to DMA bindings

These are now cared for from the Device Tree.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/cpu-db8500.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 37d604a1439f..d5accc22b3e9 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -219,7 +219,6 @@ static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
 	/* Requires call-back bindings. */
 	OF_DEV_AUXDATA("arm,cortex-a9-pmu", 0, "arm-pmu", &db8500_pmu_platdata),
 	/* Requires DMA bindings. */
-	OF_DEV_AUXDATA("arm,pl022", 0x80002000, "ssp0",  &ssp0_plat),
 	OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80123000,
 		       "ux500-msp-i2s.0", &msp0_platform_data),
 	OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80124000,
-- 
cgit 


From 5a7c2f22bdc4bfe74b30b7ac3cee061dfe85ad9a Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 13 Aug 2013 17:52:15 +0100
Subject: ARM: ux500: Remove Audio/MSP support when booting with ATAGs

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500-audio.c | 50 --------------------------------
 arch/arm/mach-ux500/board-mop500.c       |  3 --
 arch/arm/mach-ux500/board-mop500.h       |  1 -
 arch/arm/mach-ux500/devices-common.h     |  9 ------
 arch/arm/mach-ux500/devices-db8500.h     | 13 ---------
 5 files changed, 76 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500-audio.c b/arch/arm/mach-ux500/board-mop500-audio.c
index ec0807247e60..154e15f59702 100644
--- a/arch/arm/mach-ux500/board-mop500-audio.c
+++ b/arch/arm/mach-ux500/board-mop500-audio.c
@@ -68,40 +68,6 @@ static struct stedma40_chan_cfg msp2_dma_tx = {
 	.phy_channel = 1,
 };
 
-static struct platform_device *db8500_add_msp_i2s(struct device *parent,
-			int id,
-			resource_size_t base, int irq,
-			struct msp_i2s_platform_data *pdata)
-{
-	struct platform_device *pdev;
-	struct resource res[] = {
-		DEFINE_RES_MEM(base, SZ_4K),
-		DEFINE_RES_IRQ(irq),
-	};
-
-	pr_info("Register platform-device 'ux500-msp-i2s', id %d, irq %d\n",
-		id, irq);
-	pdev = platform_device_register_resndata(parent, "ux500-msp-i2s", id,
-						res, ARRAY_SIZE(res),
-						pdata, sizeof(*pdata));
-	if (!pdev) {
-		pr_err("Failed to register platform-device 'ux500-msp-i2s.%d'!\n",
-			id);
-		return NULL;
-	}
-
-	return pdev;
-}
-
-/* Platform device for ASoC MOP500 machine */
-static struct platform_device snd_soc_mop500 = {
-	.name = "snd-soc-mop500",
-	.id = 0,
-	.dev = {
-		.platform_data = NULL,
-	},
-};
-
 struct msp_i2s_platform_data msp2_platform_data = {
 	.id = MSP_I2S_2,
 	.msp_i2s_dma_rx = &msp2_dma_rx,
@@ -113,19 +79,3 @@ struct msp_i2s_platform_data msp3_platform_data = {
 	.msp_i2s_dma_rx	= &msp1_dma_rx,
 	.msp_i2s_dma_tx	= NULL,
 };
-
-void mop500_audio_init(struct device *parent)
-{
-	pr_info("%s: Register platform-device 'snd-soc-mop500'.\n", __func__);
-	platform_device_register(&snd_soc_mop500);
-
-	pr_info("Initialize MSP I2S-devices.\n");
-	db8500_add_msp_i2s(parent, 0, U8500_MSP0_BASE, IRQ_DB8500_MSP0,
-			   &msp0_platform_data);
-	db8500_add_msp_i2s(parent, 1, U8500_MSP1_BASE, IRQ_DB8500_MSP1,
-			   &msp1_platform_data);
-	db8500_add_msp_i2s(parent, 2, U8500_MSP2_BASE, IRQ_DB8500_MSP2,
-			   &msp2_platform_data);
-	db8500_add_msp_i2s(parent, 3, U8500_MSP3_BASE, IRQ_DB8500_MSP1,
-			   &msp3_platform_data);
-}
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index ad0806eff762..afc2cf6d6519 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -593,7 +593,6 @@ static void __init mop500_init_machine(void)
 	mop500_i2c_init(parent);
 	mop500_sdi_init(parent);
 	mop500_spi_init(parent);
-	mop500_audio_init(parent);
 	mop500_uart_init(parent);
 	u8500_cryp1_hash1_init(parent);
 
@@ -624,7 +623,6 @@ static void __init snowball_init_machine(void)
 	mop500_i2c_init(parent);
 	snowball_sdi_init(parent);
 	mop500_spi_init(parent);
-	mop500_audio_init(parent);
 	mop500_uart_init(parent);
 
 	u8500_cryp1_hash1_init(parent);
@@ -661,7 +659,6 @@ static void __init hrefv60_init_machine(void)
 	mop500_i2c_init(parent);
 	hrefv60_sdi_init(parent);
 	mop500_spi_init(parent);
-	mop500_audio_init(parent);
 	mop500_uart_init(parent);
 
 	/* This board has full regulator constraints */
diff --git a/arch/arm/mach-ux500/board-mop500.h b/arch/arm/mach-ux500/board-mop500.h
index d6fab166cbf1..3bd9b6e6250c 100644
--- a/arch/arm/mach-ux500/board-mop500.h
+++ b/arch/arm/mach-ux500/board-mop500.h
@@ -104,7 +104,6 @@ void __init mop500_stuib_init(void);
 void __init mop500_pinmaps_init(void);
 void __init snowball_pinmaps_init(void);
 void __init hrefv60_pinmaps_init(void);
-void mop500_audio_init(struct device *parent);
 
 int __init mop500_uib_init(void);
 void mop500_uib_i2c_add(int busnum, struct i2c_board_info *info,
diff --git a/arch/arm/mach-ux500/devices-common.h b/arch/arm/mach-ux500/devices-common.h
index 96fa4ac89e2e..7eb1272bab1a 100644
--- a/arch/arm/mach-ux500/devices-common.h
+++ b/arch/arm/mach-ux500/devices-common.h
@@ -17,15 +17,6 @@
 
 struct spi_master_cntlr;
 
-static inline struct amba_device *
-dbx500_add_msp_spi(struct device *parent, const char *name,
-		   resource_size_t base, int irq,
-		   struct spi_master_cntlr *pdata)
-{
-	return amba_ahb_device_add(parent, name, base, SZ_4K, irq, 0,
-				   pdata, 0);
-}
-
 static inline struct amba_device *
 dbx500_add_spi(struct device *parent, const char *name, resource_size_t base,
 	       int irq, struct spi_master_cntlr *pdata,
diff --git a/arch/arm/mach-ux500/devices-db8500.h b/arch/arm/mach-ux500/devices-db8500.h
index 321998320f98..c3939323516c 100644
--- a/arch/arm/mach-ux500/devices-db8500.h
+++ b/arch/arm/mach-ux500/devices-db8500.h
@@ -53,19 +53,6 @@ db8500_add_ssp(struct device *parent, const char *name, resource_size_t base,
 #define db8500_add_i2c4(parent, pdata) \
 	dbx500_add_i2c(parent, 4, U8500_I2C4_BASE, IRQ_DB8500_I2C4, pdata)
 
-#define db8500_add_msp0_spi(parent, pdata) \
-	dbx500_add_msp_spi(parent, "msp0", U8500_MSP0_BASE, \
-			   IRQ_DB8500_MSP0, pdata)
-#define db8500_add_msp1_spi(parent, pdata) \
-	dbx500_add_msp_spi(parent, "msp1", U8500_MSP1_BASE, \
-			   IRQ_DB8500_MSP1, pdata)
-#define db8500_add_msp2_spi(parent, pdata) \
-	dbx500_add_msp_spi(parent, "msp2", U8500_MSP2_BASE, \
-			   IRQ_DB8500_MSP2, pdata)
-#define db8500_add_msp3_spi(parent, pdata) \
-	dbx500_add_msp_spi(parent, "msp3", U8500_MSP3_BASE, \
-			   IRQ_DB8500_MSP1, pdata)
-
 #define db8500_add_rtc(parent) \
 	dbx500_add_rtc(parent, U8500_RTC_BASE, IRQ_DB8500_RTC);
 
-- 
cgit 


From 3e8af2e1cd214363f7de38544adea75c8f5e920c Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 14:30:37 +0100
Subject: ARM: ux500: Remove TPS61052 High Power White LED Driver ATAG support

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index afc2cf6d6519..32f7d533d66e 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -240,15 +240,6 @@ static struct platform_device u8500_cpufreq_cooling_device = {
 	.name           = "db8500-cpufreq-cooling",
 };
 
-/*
- * TPS61052
- */
-
-static struct tps6105x_platform_data mop500_tps61052_data = {
-	.mode = TPS6105X_MODE_VOLTAGE,
-	.regulator_data = &tps61052_regulator,
-};
-
 /*
  * TC35892
  */
@@ -331,10 +322,6 @@ static struct i2c_board_info __initdata mop500_i2c0_devices[] = {
 		.irq		= NOMADIK_GPIO_TO_IRQ(217),
 		.platform_data  = &mop500_tc35892_data,
 	},
-	{
-		I2C_BOARD_INFO("tps61052", 0x33),
-		.platform_data  = &mop500_tps61052_data,
-	},
 };
 
 static struct i2c_board_info __initdata mop500_i2c2_devices[] = {
-- 
cgit 


From 7a42f980b242d3dfcde795569f9067db55342f05 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 14:32:16 +0100
Subject: ARM: ux500: Remove ATAG support for LP5521 Programmable Three-Channel
 LED driver

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c | 60 --------------------------------------
 1 file changed, 60 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 32f7d533d66e..edf5a8799403 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -265,56 +265,6 @@ static struct tc3589x_platform_data mop500_tc35892_data = {
 	.irq_base	= MOP500_EGPIO_IRQ_BASE,
 };
 
-static struct lp55xx_led_config lp5521_pri_led[] = {
-       [0] = {
-	       .chan_nr = 0,
-	       .led_current = 0x2f,
-	       .max_current = 0x5f,
-       },
-       [1] = {
-	       .chan_nr = 1,
-	       .led_current = 0x2f,
-	       .max_current = 0x5f,
-       },
-       [2] = {
-	       .chan_nr = 2,
-	       .led_current = 0x2f,
-	       .max_current = 0x5f,
-       },
-};
-
-static struct lp55xx_platform_data __initdata lp5521_pri_data = {
-       .label = "lp5521_pri",
-       .led_config     = &lp5521_pri_led[0],
-       .num_channels   = 3,
-       .clock_mode     = LP55XX_CLOCK_EXT,
-};
-
-static struct lp55xx_led_config lp5521_sec_led[] = {
-       [0] = {
-	       .chan_nr = 0,
-	       .led_current = 0x2f,
-	       .max_current = 0x5f,
-       },
-       [1] = {
-	       .chan_nr = 1,
-	       .led_current = 0x2f,
-	       .max_current = 0x5f,
-       },
-       [2] = {
-	       .chan_nr = 2,
-	       .led_current = 0x2f,
-	       .max_current = 0x5f,
-       },
-};
-
-static struct lp55xx_platform_data __initdata lp5521_sec_data = {
-       .label = "lp5521_sec",
-       .led_config     = &lp5521_sec_led[0],
-       .num_channels   = 3,
-       .clock_mode     = LP55XX_CLOCK_EXT,
-};
-
 /* I2C0 devices only available on the first HREF/MOP500 */
 static struct i2c_board_info __initdata mop500_i2c0_devices[] = {
 	{
@@ -325,16 +275,6 @@ static struct i2c_board_info __initdata mop500_i2c0_devices[] = {
 };
 
 static struct i2c_board_info __initdata mop500_i2c2_devices[] = {
-	{
-		/* lp5521 LED driver, 1st device */
-		I2C_BOARD_INFO("lp5521", 0x33),
-		.platform_data = &lp5521_pri_data,
-	},
-	{
-		/* lp5521 LED driver, 2st device */
-		I2C_BOARD_INFO("lp5521", 0x34),
-		.platform_data = &lp5521_sec_data,
-	},
 	{
 		/* Light sensor Rohm BH1780GLI */
 		I2C_BOARD_INFO("bh1780", 0x29),
-- 
cgit 


From ca24959a8901f2fbfd14f7aeeee3590acc702c9b Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 19 Aug 2013 14:38:44 +0100
Subject: ARM: ux500: Remove ATAG booting support for Snowball's heatbeat LED

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c | 21 ---------------------
 1 file changed, 21 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index edf5a8799403..a79e769dd554 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -54,26 +54,6 @@
 #include "board-mop500.h"
 #include "board-mop500-regulators.h"
 
-static struct gpio_led snowball_led_array[] = {
-	{
-		.name = "user_led",
-		.default_trigger = "heartbeat",
-		.gpio = 142,
-	},
-};
-
-static struct gpio_led_platform_data snowball_led_data = {
-	.leds = snowball_led_array,
-	.num_leds = ARRAY_SIZE(snowball_led_array),
-};
-
-static struct platform_device snowball_led_dev = {
-	.name = "leds-gpio",
-	.dev = {
-		.platform_data = &snowball_led_data,
-	},
-};
-
 static struct fixed_voltage_config snowball_gpio_en_3v3_data = {
        .supply_name            = "EN-3V3",
        .gpio                   = SNOWBALL_EN_3V3_ETH_GPIO,
@@ -489,7 +469,6 @@ static void __init u8500_cryp1_hash1_init(struct device *parent)
 }
 
 static struct platform_device *snowball_platform_devs[] __initdata = {
-	&snowball_led_dev,
 	&snowball_key_dev,
 	&snowball_sbnet_dev,
 	&snowball_gpio_en_3v3_regulator_dev,
-- 
cgit 


From fa9a65f7cbec439a029551b14084fc8efdc4a2ac Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 19 Aug 2013 15:42:17 +0100
Subject: ARM: ux500: Purge support for Snowball user buttons when booting with
 ATAGs

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c | 62 --------------------------------------
 1 file changed, 62 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index a79e769dd554..6dcf023b0b96 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -118,67 +118,6 @@ static struct ab8500_codec_platform_data ab8500_codec_pdata = {
 	.ear_cmv = EAR_CMV_0_95V
 };
 
-static struct gpio_keys_button snowball_key_array[] = {
-	{
-		.gpio           = 32,
-		.type           = EV_KEY,
-		.code           = KEY_1,
-		.desc           = "userpb",
-		.active_low     = 1,
-		.debounce_interval = 50,
-		.wakeup         = 1,
-	},
-	{
-		.gpio           = 151,
-		.type           = EV_KEY,
-		.code           = KEY_2,
-		.desc           = "extkb1",
-		.active_low     = 1,
-		.debounce_interval = 50,
-		.wakeup         = 1,
-	},
-	{
-		.gpio           = 152,
-		.type           = EV_KEY,
-		.code           = KEY_3,
-		.desc           = "extkb2",
-		.active_low     = 1,
-		.debounce_interval = 50,
-		.wakeup         = 1,
-	},
-	{
-		.gpio           = 161,
-		.type           = EV_KEY,
-		.code           = KEY_4,
-		.desc           = "extkb3",
-		.active_low     = 1,
-		.debounce_interval = 50,
-		.wakeup         = 1,
-	},
-	{
-		.gpio           = 162,
-		.type           = EV_KEY,
-		.code           = KEY_5,
-		.desc           = "extkb4",
-		.active_low     = 1,
-		.debounce_interval = 50,
-		.wakeup         = 1,
-	},
-};
-
-static struct gpio_keys_platform_data snowball_key_data = {
-	.buttons        = snowball_key_array,
-	.nbuttons       = ARRAY_SIZE(snowball_key_array),
-};
-
-static struct platform_device snowball_key_dev = {
-	.name           = "gpio-keys",
-	.id             = -1,
-	.dev            = {
-		.platform_data  = &snowball_key_data,
-	}
-};
-
 static struct smsc911x_platform_config snowball_sbnet_cfg = {
 	.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH,
 	.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
@@ -469,7 +408,6 @@ static void __init u8500_cryp1_hash1_init(struct device *parent)
 }
 
 static struct platform_device *snowball_platform_devs[] __initdata = {
-	&snowball_key_dev,
 	&snowball_sbnet_dev,
 	&snowball_gpio_en_3v3_regulator_dev,
 	&u8500_cpufreq_cooling_device,
-- 
cgit 


From 422383a18fa86bc48d579ed1874ca8b78fc2bd21 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 19 Aug 2013 15:46:25 +0100
Subject: ARM: ux500: Disable Snowball's SMSC911x Ethernet when booting with
 ATAGs

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c | 32 --------------------------------
 1 file changed, 32 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 6dcf023b0b96..a1c433062f62 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -33,7 +33,6 @@
 #include <linux/mfd/abx500/ab8500-codec.h>
 #include <linux/platform_data/leds-lp55xx.h>
 #include <linux/input.h>
-#include <linux/smsc911x.h>
 #include <linux/gpio_keys.h>
 #include <linux/delay.h>
 #include <linux/leds.h>
@@ -118,36 +117,6 @@ static struct ab8500_codec_platform_data ab8500_codec_pdata = {
 	.ear_cmv = EAR_CMV_0_95V
 };
 
-static struct smsc911x_platform_config snowball_sbnet_cfg = {
-	.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH,
-	.irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL,
-	.flags = SMSC911X_USE_16BIT | SMSC911X_FORCE_INTERNAL_PHY,
-	.shift = 1,
-};
-
-static struct resource sbnet_res[] = {
-	{
-		.name = "smsc911x-memory",
-		.start = (0x5000 << 16),
-		.end  =  (0x5000 << 16) + 0xffff,
-		.flags = IORESOURCE_MEM,
-	},
-	{
-		.start = NOMADIK_GPIO_TO_IRQ(140),
-		.end = NOMADIK_GPIO_TO_IRQ(140),
-		.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
-	},
-};
-
-static struct platform_device snowball_sbnet_dev = {
-	.name           = "smsc911x",
-	.num_resources  = ARRAY_SIZE(sbnet_res),
-	.resource       = sbnet_res,
-	.dev            = {
-		.platform_data = &snowball_sbnet_cfg,
-	},
-};
-
 struct ab8500_platform_data ab8500_platdata = {
 	.irq_base	= MOP500_AB8500_IRQ_BASE,
 	.regulator	= &ab8500_regulator_plat_data,
@@ -408,7 +377,6 @@ static void __init u8500_cryp1_hash1_init(struct device *parent)
 }
 
 static struct platform_device *snowball_platform_devs[] __initdata = {
-	&snowball_sbnet_dev,
 	&snowball_gpio_en_3v3_regulator_dev,
 	&u8500_cpufreq_cooling_device,
 	&sdi0_regulator,
-- 
cgit 


From c443bf79fb8d4310fecb8e3397489927dea9799f Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 19 Aug 2013 16:27:28 +0100
Subject: ARM: ux500: Remove support for Snowball's Ethernet regulator when
 booting with ATAGs

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c | 18 ------------------
 1 file changed, 18 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index a1c433062f62..6c7bec4c154b 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -53,23 +53,6 @@
 #include "board-mop500.h"
 #include "board-mop500-regulators.h"
 
-static struct fixed_voltage_config snowball_gpio_en_3v3_data = {
-       .supply_name            = "EN-3V3",
-       .gpio                   = SNOWBALL_EN_3V3_ETH_GPIO,
-       .microvolts             = 3300000,
-       .enable_high            = 1,
-       .init_data              = &gpio_en_3v3_regulator,
-       .startup_delay          = 5000, /* 1200us */
-};
-
-static struct platform_device snowball_gpio_en_3v3_regulator_dev = {
-       .name   = "reg-fixed-voltage",
-       .id     = 1,
-       .dev    = {
-               .platform_data  = &snowball_gpio_en_3v3_data,
-       },
-};
-
 /* Dynamically populated. */
 static struct gpio sdi0_reg_gpios[] = {
 	{ 0, GPIOF_OUT_INIT_LOW, "mmci_vsel" },
@@ -377,7 +360,6 @@ static void __init u8500_cryp1_hash1_init(struct device *parent)
 }
 
 static struct platform_device *snowball_platform_devs[] __initdata = {
-	&snowball_gpio_en_3v3_regulator_dev,
 	&u8500_cpufreq_cooling_device,
 	&sdi0_regulator,
 };
-- 
cgit 


From 5665f4a31bb9f80e8a19fd87d8f65b22a0bf9362 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 19 Aug 2013 16:28:58 +0100
Subject: ARM: ux500: Disable Snowball's CPUFreq functionality when booting
 with ATAGs enabled

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 6c7bec4c154b..2554567c591a 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -107,10 +107,6 @@ struct ab8500_platform_data ab8500_platdata = {
 	.codec		= &ab8500_codec_pdata,
 };
 
-static struct platform_device u8500_cpufreq_cooling_device = {
-	.name           = "db8500-cpufreq-cooling",
-};
-
 /*
  * TC35892
  */
@@ -360,7 +356,6 @@ static void __init u8500_cryp1_hash1_init(struct device *parent)
 }
 
 static struct platform_device *snowball_platform_devs[] __initdata = {
-	&u8500_cpufreq_cooling_device,
 	&sdi0_regulator,
 };
 
-- 
cgit 


From 335d761416658838331b2a85f5cad120e45956e5 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 21 Aug 2013 14:33:07 +0100
Subject: ARM: ux500: Purge SDI regulator support when booting with ATAGs
 enable

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c | 53 --------------------------------------
 1 file changed, 53 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 2554567c591a..44e23c007ae8 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -26,7 +26,6 @@
 #include <linux/regulator/ab8500.h>
 #include <linux/regulator/fixed.h>
 #include <linux/regulator/driver.h>
-#include <linux/regulator/gpio-regulator.h>
 #include <linux/mfd/tc3589x.h>
 #include <linux/mfd/tps6105x.h>
 #include <linux/mfd/abx500/ab8500-gpio.h>
@@ -53,37 +52,6 @@
 #include "board-mop500.h"
 #include "board-mop500-regulators.h"
 
-/* Dynamically populated. */
-static struct gpio sdi0_reg_gpios[] = {
-	{ 0, GPIOF_OUT_INIT_LOW, "mmci_vsel" },
-};
-
-static struct gpio_regulator_state sdi0_reg_states[] = {
-	{ .value = 2900000, .gpios = (0 << 0) },
-	{ .value = 1800000, .gpios = (1 << 0) },
-};
-
-static struct gpio_regulator_config sdi0_reg_info = {
-	.supply_name		= "ext-mmc-level-shifter",
-	.gpios			= sdi0_reg_gpios,
-	.nr_gpios		= ARRAY_SIZE(sdi0_reg_gpios),
-	.states			= sdi0_reg_states,
-	.nr_states		= ARRAY_SIZE(sdi0_reg_states),
-	.type			= REGULATOR_VOLTAGE,
-	.enable_high		= 1,
-	.enabled_at_boot	= 0,
-	.init_data		= &sdi0_reg_init_data,
-	.startup_delay		= 100,
-};
-
-static struct platform_device sdi0_regulator = {
-	.name = "gpio-regulator",
-	.id   = -1,
-	.dev  = {
-		.platform_data = &sdi0_reg_info,
-	},
-};
-
 static struct abx500_gpio_platform_data ab8500_gpio_pdata = {
 	.gpio_base		= MOP500_AB8500_PIN_GPIO(1),
 };
@@ -242,7 +210,6 @@ static struct hash_platform_data u8500_hash1_platform_data = {
 /* add any platform devices here - TODO */
 static struct platform_device *mop500_platform_devs[] __initdata = {
 	&mop500_gpio_keys_device,
-	&sdi0_regulator,
 };
 
 #ifdef CONFIG_STE_DMA40
@@ -355,10 +322,6 @@ static void __init u8500_cryp1_hash1_init(struct device *parent)
 	db8500_add_hash1(parent, &u8500_hash1_platform_data);
 }
 
-static struct platform_device *snowball_platform_devs[] __initdata = {
-	&sdi0_regulator,
-};
-
 static void __init mop500_init_machine(void)
 {
 	struct device *parent = NULL;
@@ -367,9 +330,6 @@ static void __init mop500_init_machine(void)
 	platform_device_register(&db8500_prcmu_device);
 	mop500_gpio_keys[0].gpio = GPIO_PROX_SENSOR;
 
-	sdi0_reg_info.enable_gpio = GPIO_SDMMC_EN;
-	sdi0_reg_info.gpios[0].gpio = GPIO_SDMMC_1V8_3V_SEL;
-
 	mop500_pinmaps_init();
 	parent = u8500_init_devices();
 
@@ -393,22 +353,12 @@ static void __init mop500_init_machine(void)
 static void __init snowball_init_machine(void)
 {
 	struct device *parent = NULL;
-	int i;
 
 	platform_device_register(&db8500_prcmu_device);
 
-	sdi0_reg_info.enable_gpio = SNOWBALL_SDMMC_EN_GPIO;
-	sdi0_reg_info.gpios[0].gpio = SNOWBALL_SDMMC_1V8_3V_GPIO;
-
 	snowball_pinmaps_init();
 	parent = u8500_init_devices();
 
-	for (i = 0; i < ARRAY_SIZE(snowball_platform_devs); i++)
-		snowball_platform_devs[i]->dev.parent = parent;
-
-	platform_add_devices(snowball_platform_devs,
-			ARRAY_SIZE(snowball_platform_devs));
-
 	mop500_i2c_init(parent);
 	snowball_sdi_init(parent);
 	mop500_spi_init(parent);
@@ -433,9 +383,6 @@ static void __init hrefv60_init_machine(void)
 	 */
 	mop500_gpio_keys[0].gpio = HREFV60_PROX_SENSE_GPIO;
 
-	sdi0_reg_info.enable_gpio = HREFV60_SDMMC_EN_GPIO;
-	sdi0_reg_info.gpios[0].gpio = HREFV60_SDMMC_1V8_3V_GPIO;
-
 	hrefv60_pinmaps_init();
 	parent = u8500_init_devices();
 
-- 
cgit 


From 3b91f30093286094e9ed8c5513c9bfcd97191111 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 21 Aug 2013 15:19:18 +0100
Subject: ARM: ux500: Deactivate Crypt support when booting with ATAGs

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c   | 15 ---------------
 arch/arm/mach-ux500/devices-common.h | 26 --------------------------
 arch/arm/mach-ux500/devices-db8500.h |  2 --
 arch/arm/mach-ux500/devices.h        |  1 -
 4 files changed, 44 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 44e23c007ae8..c4fdb03be2cf 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -44,7 +44,6 @@
 #include "setup.h"
 #include "devices.h"
 #include "irqs.h"
-#include <linux/platform_data/crypto-ux500.h>
 
 #include "ste-dma40-db8500.h"
 #include "db8500-regs.h"
@@ -183,19 +182,6 @@ static void mop500_prox_deactivate(struct device *dev)
 	regulator_put(prox_regulator);
 }
 
-static struct cryp_platform_data u8500_cryp1_platform_data = {
-		.mem_to_engine = {
-				.dir = DMA_MEM_TO_DEV,
-				.dev_type = DB8500_DMA_DEV48_CAC1,
-				.mode = STEDMA40_MODE_LOGICAL,
-		},
-		.engine_to_mem = {
-				.dir = DMA_DEV_TO_MEM,
-				.dev_type = DB8500_DMA_DEV48_CAC1,
-				.mode = STEDMA40_MODE_LOGICAL,
-		}
-};
-
 static struct stedma40_chan_cfg u8500_hash_dma_cfg_tx = {
 		.dir = DMA_MEM_TO_DEV,
 		.dev_type = DB8500_DMA_DEV50_HAC1_TX,
@@ -318,7 +304,6 @@ static void __init mop500_uart_init(struct device *parent)
 
 static void __init u8500_cryp1_hash1_init(struct device *parent)
 {
-	db8500_add_cryp1(parent, &u8500_cryp1_platform_data);
 	db8500_add_hash1(parent, &u8500_hash1_platform_data);
 }
 
diff --git a/arch/arm/mach-ux500/devices-common.h b/arch/arm/mach-ux500/devices-common.h
index 7eb1272bab1a..b32f1793322d 100644
--- a/arch/arm/mach-ux500/devices-common.h
+++ b/arch/arm/mach-ux500/devices-common.h
@@ -13,7 +13,6 @@
 #include <linux/sys_soc.h>
 #include <linux/amba/bus.h>
 #include <linux/platform_data/i2c-nomadik.h>
-#include <linux/platform_data/crypto-ux500.h>
 
 struct spi_master_cntlr;
 
@@ -65,31 +64,6 @@ dbx500_add_rtc(struct device *parent, resource_size_t base, int irq)
 				0, NULL, 0);
 }
 
-struct cryp_platform_data;
-
-static inline struct platform_device *
-dbx500_add_cryp1(struct device *parent, int id, resource_size_t base, int irq,
-		struct cryp_platform_data *pdata)
-{
-	struct resource res[] = {
-			DEFINE_RES_MEM(base, SZ_4K),
-			DEFINE_RES_IRQ(irq),
-	};
-
-	struct platform_device_info pdevinfo = {
-			.parent = parent,
-			.name = "cryp1",
-			.id = id,
-			.res = res,
-			.num_res = ARRAY_SIZE(res),
-			.data = pdata,
-			.size_data = sizeof(*pdata),
-			.dma_mask = DMA_BIT_MASK(32),
-	};
-
-	return platform_device_register_full(&pdevinfo);
-}
-
 struct hash_platform_data;
 
 static inline struct platform_device *
diff --git a/arch/arm/mach-ux500/devices-db8500.h b/arch/arm/mach-ux500/devices-db8500.h
index c3939323516c..7331b7e67821 100644
--- a/arch/arm/mach-ux500/devices-db8500.h
+++ b/arch/arm/mach-ux500/devices-db8500.h
@@ -109,8 +109,6 @@ db8500_add_ssp(struct device *parent, const char *name, resource_size_t base,
 	dbx500_add_uart(parent, "uart2", U8500_UART2_BASE, \
 			IRQ_DB8500_UART2, pdata)
 
-#define db8500_add_cryp1(parent, pdata) \
-	dbx500_add_cryp1(parent, -1, U8500_CRYP1_BASE, IRQ_DB8500_CRYP1, pdata)
 #define db8500_add_hash1(parent, pdata) \
 	dbx500_add_hash1(parent, -1, U8500_HASH1_BASE, pdata)
 #endif
diff --git a/arch/arm/mach-ux500/devices.h b/arch/arm/mach-ux500/devices.h
index cbc6f1e4104d..a5183e3c2884 100644
--- a/arch/arm/mach-ux500/devices.h
+++ b/arch/arm/mach-ux500/devices.h
@@ -15,7 +15,6 @@ extern struct platform_device u8500_gpio_devs[];
 extern struct amba_device ux500_pl031_device;
 
 extern struct platform_device ux500_hash1_device;
-extern struct platform_device ux500_cryp1_device;
 
 extern struct platform_device u8500_dma40_device;
 extern struct platform_device ux500_ske_keypad_device;
-- 
cgit 


From 598ad492bff2742407c238355a67a79ca096287f Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 14:35:06 +0100
Subject: ARM: ux500: Rip out Hash support when booting with ATAGs

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c   | 19 -------------------
 arch/arm/mach-ux500/devices-common.h | 24 ------------------------
 arch/arm/mach-ux500/devices-db8500.h |  2 --
 arch/arm/mach-ux500/devices.h        |  2 --
 4 files changed, 47 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index c4fdb03be2cf..65b3dbb1a7ef 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -182,17 +182,6 @@ static void mop500_prox_deactivate(struct device *dev)
 	regulator_put(prox_regulator);
 }
 
-static struct stedma40_chan_cfg u8500_hash_dma_cfg_tx = {
-		.dir = DMA_MEM_TO_DEV,
-		.dev_type = DB8500_DMA_DEV50_HAC1_TX,
-		.mode = STEDMA40_MODE_LOGICAL,
-};
-
-static struct hash_platform_data u8500_hash1_platform_data = {
-		.mem_to_engine = &u8500_hash_dma_cfg_tx,
-		.dma_filter = stedma40_filter,
-};
-
 /* add any platform devices here - TODO */
 static struct platform_device *mop500_platform_devs[] __initdata = {
 	&mop500_gpio_keys_device,
@@ -302,11 +291,6 @@ static void __init mop500_uart_init(struct device *parent)
 	db8500_add_uart2(parent, &uart2_plat);
 }
 
-static void __init u8500_cryp1_hash1_init(struct device *parent)
-{
-	db8500_add_hash1(parent, &u8500_hash1_platform_data);
-}
-
 static void __init mop500_init_machine(void)
 {
 	struct device *parent = NULL;
@@ -328,7 +312,6 @@ static void __init mop500_init_machine(void)
 	mop500_sdi_init(parent);
 	mop500_spi_init(parent);
 	mop500_uart_init(parent);
-	u8500_cryp1_hash1_init(parent);
 
 	/* This board has full regulator constraints */
 	regulator_has_full_constraints();
@@ -349,8 +332,6 @@ static void __init snowball_init_machine(void)
 	mop500_spi_init(parent);
 	mop500_uart_init(parent);
 
-	u8500_cryp1_hash1_init(parent);
-
 	/* This board has full regulator constraints */
 	regulator_has_full_constraints();
 }
diff --git a/arch/arm/mach-ux500/devices-common.h b/arch/arm/mach-ux500/devices-common.h
index b32f1793322d..04fa009b5240 100644
--- a/arch/arm/mach-ux500/devices-common.h
+++ b/arch/arm/mach-ux500/devices-common.h
@@ -64,30 +64,6 @@ dbx500_add_rtc(struct device *parent, resource_size_t base, int irq)
 				0, NULL, 0);
 }
 
-struct hash_platform_data;
-
-static inline struct platform_device *
-dbx500_add_hash1(struct device *parent, int id, resource_size_t base,
-		struct hash_platform_data *pdata)
-{
-	struct resource res[] = {
-			DEFINE_RES_MEM(base, SZ_4K),
-	};
-
-	struct platform_device_info pdevinfo = {
-			.parent = parent,
-			.name = "hash1",
-			.id = id,
-			.res = res,
-			.num_res = ARRAY_SIZE(res),
-			.data = pdata,
-			.size_data = sizeof(*pdata),
-			.dma_mask = DMA_BIT_MASK(32),
-	};
-
-	return platform_device_register_full(&pdevinfo);
-}
-
 struct nmk_gpio_platform_data;
 
 void dbx500_add_gpios(struct device *parent, resource_size_t *base, int num,
diff --git a/arch/arm/mach-ux500/devices-db8500.h b/arch/arm/mach-ux500/devices-db8500.h
index 7331b7e67821..3d326688254d 100644
--- a/arch/arm/mach-ux500/devices-db8500.h
+++ b/arch/arm/mach-ux500/devices-db8500.h
@@ -109,6 +109,4 @@ db8500_add_ssp(struct device *parent, const char *name, resource_size_t base,
 	dbx500_add_uart(parent, "uart2", U8500_UART2_BASE, \
 			IRQ_DB8500_UART2, pdata)
 
-#define db8500_add_hash1(parent, pdata) \
-	dbx500_add_hash1(parent, -1, U8500_HASH1_BASE, pdata)
 #endif
diff --git a/arch/arm/mach-ux500/devices.h b/arch/arm/mach-ux500/devices.h
index a5183e3c2884..9b5eb69a0154 100644
--- a/arch/arm/mach-ux500/devices.h
+++ b/arch/arm/mach-ux500/devices.h
@@ -14,8 +14,6 @@ extern struct platform_device u8500_gpio_devs[];
 
 extern struct amba_device ux500_pl031_device;
 
-extern struct platform_device ux500_hash1_device;
-
 extern struct platform_device u8500_dma40_device;
 extern struct platform_device ux500_ske_keypad_device;
 
-- 
cgit 


From 90375f8cd5c6e8b3d2d85ad716f587f401e5a172 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 22 Aug 2013 14:26:18 +0100
Subject: ARM: ux500: Prevent CODEC platform data from being passed when
 booting ATAGs

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 65b3dbb1a7ef..48fbe2438ecc 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -29,7 +29,6 @@
 #include <linux/mfd/tc3589x.h>
 #include <linux/mfd/tps6105x.h>
 #include <linux/mfd/abx500/ab8500-gpio.h>
-#include <linux/mfd/abx500/ab8500-codec.h>
 #include <linux/platform_data/leds-lp55xx.h>
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
@@ -55,23 +54,10 @@ static struct abx500_gpio_platform_data ab8500_gpio_pdata = {
 	.gpio_base		= MOP500_AB8500_PIN_GPIO(1),
 };
 
-/* ab8500-codec */
-static struct ab8500_codec_platform_data ab8500_codec_pdata = {
-	.amics =  {
-		.mic1_type = AMIC_TYPE_DIFFERENTIAL,
-		.mic2_type = AMIC_TYPE_DIFFERENTIAL,
-		.mic1a_micbias = AMIC_MICBIAS_VAMIC1,
-		.mic1b_micbias = AMIC_MICBIAS_VAMIC1,
-		.mic2_micbias = AMIC_MICBIAS_VAMIC2
-	},
-	.ear_cmv = EAR_CMV_0_95V
-};
-
 struct ab8500_platform_data ab8500_platdata = {
 	.irq_base	= MOP500_AB8500_IRQ_BASE,
 	.regulator	= &ab8500_regulator_plat_data,
 	.gpio		= &ab8500_gpio_pdata,
-	.codec		= &ab8500_codec_pdata,
 };
 
 /*
-- 
cgit 


From c8bc7a8a13da97103ff94e1646678a2f8438e9b5 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 21 Aug 2013 15:39:53 +0100
Subject: ARM: ux500: Stop passing GPIO pdata when booitng with ATAGs enabled

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 48fbe2438ecc..ca169f6a34c4 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -50,14 +50,9 @@
 #include "board-mop500.h"
 #include "board-mop500-regulators.h"
 
-static struct abx500_gpio_platform_data ab8500_gpio_pdata = {
-	.gpio_base		= MOP500_AB8500_PIN_GPIO(1),
-};
-
 struct ab8500_platform_data ab8500_platdata = {
 	.irq_base	= MOP500_AB8500_IRQ_BASE,
 	.regulator	= &ab8500_regulator_plat_data,
-	.gpio		= &ab8500_gpio_pdata,
 };
 
 /*
-- 
cgit 


From c316503b3ae4f30ae68735b2a89303f9653a7f42 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 15:11:25 +0100
Subject: ARM: ux500: Remove TC35892 Flexible IO Expander when booting ATAGs

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500-sdi.c      | 12 ------
 arch/arm/mach-ux500/board-mop500-u8500uib.c | 64 -----------------------------
 arch/arm/mach-ux500/board-mop500.c          | 35 ----------------
 arch/arm/mach-ux500/board-mop500.h          |  1 -
 4 files changed, 112 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500-sdi.c b/arch/arm/mach-ux500/board-mop500-sdi.c
index b3e61a38e5c8..1ae5999c45db 100644
--- a/arch/arm/mach-ux500/board-mop500-sdi.c
+++ b/arch/arm/mach-ux500/board-mop500-sdi.c
@@ -71,12 +71,6 @@ static void sdi0_configure(struct device *parent)
 	db8500_add_sdi0(parent, &mop500_sdi0_data, U8500_SDI_V2_PERIPHID);
 }
 
-void mop500_sdi_tc35892_init(struct device *parent)
-{
-	mop500_sdi0_data.gpio_cd = GPIO_SDMMC_CD;
-	sdi0_configure(parent);
-}
-
 /*
  * SDI1 (SDIO WLAN)
  */
@@ -185,12 +179,6 @@ void __init mop500_sdi_init(struct device *parent)
 	db8500_add_sdi2(parent, &mop500_sdi2_data, U8500_SDI_V2_PERIPHID);
 	/* On-board eMMC */
 	db8500_add_sdi4(parent, &mop500_sdi4_data, U8500_SDI_V2_PERIPHID);
-
-	/*
-	 * On boards with the TC35892 GPIO expander, sdi0 will finally
-	 * be added when the TC35892 initializes and calls
-	 * mop500_sdi_tc35892_init() above.
-	 */
 }
 
 void __init snowball_sdi_init(struct device *parent)
diff --git a/arch/arm/mach-ux500/board-mop500-u8500uib.c b/arch/arm/mach-ux500/board-mop500-u8500uib.c
index d397c19570af..6f6553e19c00 100644
--- a/arch/arm/mach-ux500/board-mop500-u8500uib.c
+++ b/arch/arm/mach-ux500/board-mop500-u8500uib.c
@@ -9,8 +9,6 @@
 #include <linux/init.h>
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
-#include <linux/mfd/tc3589x.h>
-#include <linux/input/matrix_keypad.h>
 
 #include "irqs.h"
 
@@ -23,70 +21,8 @@ static struct i2c_board_info __initdata mop500_i2c3_devices_u8500[] = {
 	},
 };
 
-/*
- * TC35893
- */
-static const unsigned int u8500_keymap[] = {
-	KEY(3, 1, KEY_END),
-	KEY(4, 1, KEY_POWER),
-	KEY(6, 4, KEY_VOLUMEDOWN),
-	KEY(4, 2, KEY_EMAIL),
-	KEY(3, 3, KEY_RIGHT),
-	KEY(2, 5, KEY_BACKSPACE),
-
-	KEY(6, 7, KEY_MENU),
-	KEY(5, 0, KEY_ENTER),
-	KEY(4, 3, KEY_0),
-	KEY(3, 4, KEY_DOT),
-	KEY(5, 2, KEY_UP),
-	KEY(3, 5, KEY_DOWN),
-
-	KEY(4, 5, KEY_SEND),
-	KEY(0, 5, KEY_BACK),
-	KEY(6, 2, KEY_VOLUMEUP),
-	KEY(1, 3, KEY_SPACE),
-	KEY(7, 6, KEY_LEFT),
-	KEY(5, 5, KEY_SEARCH),
-};
-
-static struct matrix_keymap_data u8500_keymap_data = {
-	.keymap		= u8500_keymap,
-	.keymap_size    = ARRAY_SIZE(u8500_keymap),
-};
-
-static struct tc3589x_keypad_platform_data tc35893_data = {
-	.krow = TC_KPD_ROWS,
-	.kcol = TC_KPD_COLUMNS,
-	.debounce_period = TC_KPD_DEBOUNCE_PERIOD,
-	.settle_time = TC_KPD_SETTLE_TIME,
-	.irqtype = IRQF_TRIGGER_FALLING,
-	.enable_wakeup = true,
-	.keymap_data    = &u8500_keymap_data,
-	.no_autorepeat  = true,
-};
-
-static struct tc3589x_platform_data tc3589x_keypad_data = {
-	.block = TC3589x_BLOCK_KEYPAD,
-	.keypad = &tc35893_data,
-	.irq_base = MOP500_EGPIO_IRQ_BASE,
-};
-
-static struct i2c_board_info __initdata mop500_i2c0_devices_u8500[] = {
-	{
-		I2C_BOARD_INFO("tc3589x", 0x44),
-		.platform_data = &tc3589x_keypad_data,
-		.irq = NOMADIK_GPIO_TO_IRQ(218),
-		.flags = I2C_CLIENT_WAKE,
-	},
-};
-
-
 void __init mop500_u8500uib_init(void)
 {
 	mop500_uib_i2c_add(3, mop500_i2c3_devices_u8500,
 			ARRAY_SIZE(mop500_i2c3_devices_u8500));
-
-	mop500_uib_i2c_add(0, mop500_i2c0_devices_u8500,
-			ARRAY_SIZE(mop500_i2c0_devices_u8500));
-
 }
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index ca169f6a34c4..a8c22cd2f4b1 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -26,7 +26,6 @@
 #include <linux/regulator/ab8500.h>
 #include <linux/regulator/fixed.h>
 #include <linux/regulator/driver.h>
-#include <linux/mfd/tc3589x.h>
 #include <linux/mfd/tps6105x.h>
 #include <linux/mfd/abx500/ab8500-gpio.h>
 #include <linux/platform_data/leds-lp55xx.h>
@@ -55,40 +54,6 @@ struct ab8500_platform_data ab8500_platdata = {
 	.regulator	= &ab8500_regulator_plat_data,
 };
 
-/*
- * TC35892
- */
-
-static void mop500_tc35892_init(struct tc3589x *tc3589x, unsigned int base)
-{
-	struct device *parent = NULL;
-#if 0
-	/* FIXME: Is the sdi actually part of tc3589x? */
-	parent = tc3589x->dev;
-#endif
-	mop500_sdi_tc35892_init(parent);
-}
-
-static struct tc3589x_gpio_platform_data mop500_tc35892_gpio_data = {
-	.gpio_base	= MOP500_EGPIO(0),
-	.setup		= mop500_tc35892_init,
-};
-
-static struct tc3589x_platform_data mop500_tc35892_data = {
-	.block		= TC3589x_BLOCK_GPIO,
-	.gpio		= &mop500_tc35892_gpio_data,
-	.irq_base	= MOP500_EGPIO_IRQ_BASE,
-};
-
-/* I2C0 devices only available on the first HREF/MOP500 */
-static struct i2c_board_info __initdata mop500_i2c0_devices[] = {
-	{
-		I2C_BOARD_INFO("tc3589x", 0x42),
-		.irq		= NOMADIK_GPIO_TO_IRQ(217),
-		.platform_data  = &mop500_tc35892_data,
-	},
-};
-
 static struct i2c_board_info __initdata mop500_i2c2_devices[] = {
 	{
 		/* Light sensor Rohm BH1780GLI */
diff --git a/arch/arm/mach-ux500/board-mop500.h b/arch/arm/mach-ux500/board-mop500.h
index 3bd9b6e6250c..cfc553c9e50d 100644
--- a/arch/arm/mach-ux500/board-mop500.h
+++ b/arch/arm/mach-ux500/board-mop500.h
@@ -98,7 +98,6 @@ extern struct stedma40_platform_data dma40_plat_data;
 extern void mop500_sdi_init(struct device *parent);
 extern void snowball_sdi_init(struct device *parent);
 extern void hrefv60_sdi_init(struct device *parent);
-extern void mop500_sdi_tc35892_init(struct device *parent);
 void __init mop500_u8500uib_init(void);
 void __init mop500_stuib_init(void);
 void __init mop500_pinmaps_init(void);
-- 
cgit 


From b5cbc510d5ef2433d8b23d11ce2e9e959411d00e Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 14:41:18 +0100
Subject: ARM: ux500: Remove Light sensor Rohm BH1780GLI when booting with
 ATAGs

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c | 18 ------------------
 1 file changed, 18 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index a8c22cd2f4b1..94df003aea4b 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -54,24 +54,6 @@ struct ab8500_platform_data ab8500_platdata = {
 	.regulator	= &ab8500_regulator_plat_data,
 };
 
-static struct i2c_board_info __initdata mop500_i2c2_devices[] = {
-	{
-		/* Light sensor Rohm BH1780GLI */
-		I2C_BOARD_INFO("bh1780", 0x29),
-	},
-};
-
-static int __init mop500_i2c_board_init(void)
-{
-	if (machine_is_u8500())
-		mop500_uib_i2c_add(0, mop500_i2c0_devices,
-				   ARRAY_SIZE(mop500_i2c0_devices));
-	mop500_uib_i2c_add(2, mop500_i2c2_devices,
-			   ARRAY_SIZE(mop500_i2c2_devices));
-	return 0;
-}
-device_initcall(mop500_i2c_board_init);
-
 static void __init mop500_i2c_init(struct device *parent)
 {
 	db8500_add_i2c0(parent, NULL);
-- 
cgit 


From 16b246ac50181c49e34e2846f4227cf8ad4d39c8 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 21 Aug 2013 15:54:05 +0100
Subject: ARM: ux500: Purge SFH7741 Proximity Sensor support when booting with
 ATAGs

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c | 75 --------------------------------------
 1 file changed, 75 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 94df003aea4b..7109b3f21a63 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -30,7 +30,6 @@
 #include <linux/mfd/abx500/ab8500-gpio.h>
 #include <linux/platform_data/leds-lp55xx.h>
 #include <linux/input.h>
-#include <linux/gpio_keys.h>
 #include <linux/delay.h>
 #include <linux/leds.h>
 #include <linux/pinctrl/consumer.h>
@@ -62,59 +61,6 @@ static void __init mop500_i2c_init(struct device *parent)
 	db8500_add_i2c3(parent, NULL);
 }
 
-static struct gpio_keys_button mop500_gpio_keys[] = {
-	{
-		.desc			= "SFH7741 Proximity Sensor",
-		.type			= EV_SW,
-		.code			= SW_FRONT_PROXIMITY,
-		.active_low		= 0,
-		.can_disable		= 1,
-	}
-};
-
-static struct regulator *prox_regulator;
-static int mop500_prox_activate(struct device *dev);
-static void mop500_prox_deactivate(struct device *dev);
-
-static struct gpio_keys_platform_data mop500_gpio_keys_data = {
-	.buttons	= mop500_gpio_keys,
-	.nbuttons	= ARRAY_SIZE(mop500_gpio_keys),
-	.enable		= mop500_prox_activate,
-	.disable	= mop500_prox_deactivate,
-};
-
-static struct platform_device mop500_gpio_keys_device = {
-	.name	= "gpio-keys",
-	.id	= 0,
-	.dev	= {
-		.platform_data	= &mop500_gpio_keys_data,
-	},
-};
-
-static int mop500_prox_activate(struct device *dev)
-{
-	prox_regulator = regulator_get(&mop500_gpio_keys_device.dev,
-						"vcc");
-	if (IS_ERR(prox_regulator)) {
-		dev_err(&mop500_gpio_keys_device.dev,
-			"no regulator\n");
-		return PTR_ERR(prox_regulator);
-	}
-
-	return regulator_enable(prox_regulator);
-}
-
-static void mop500_prox_deactivate(struct device *dev)
-{
-	regulator_disable(prox_regulator);
-	regulator_put(prox_regulator);
-}
-
-/* add any platform devices here - TODO */
-static struct platform_device *mop500_platform_devs[] __initdata = {
-	&mop500_gpio_keys_device,
-};
-
 #ifdef CONFIG_STE_DMA40
 static struct stedma40_chan_cfg ssp0_dma_cfg_rx = {
 	.mode = STEDMA40_MODE_LOGICAL,
@@ -222,20 +168,12 @@ static void __init mop500_uart_init(struct device *parent)
 static void __init mop500_init_machine(void)
 {
 	struct device *parent = NULL;
-	int i;
 
 	platform_device_register(&db8500_prcmu_device);
-	mop500_gpio_keys[0].gpio = GPIO_PROX_SENSOR;
 
 	mop500_pinmaps_init();
 	parent = u8500_init_devices();
 
-	for (i = 0; i < ARRAY_SIZE(mop500_platform_devs); i++)
-		mop500_platform_devs[i]->dev.parent = parent;
-
-	platform_add_devices(mop500_platform_devs,
-			ARRAY_SIZE(mop500_platform_devs));
-
 	mop500_i2c_init(parent);
 	mop500_sdi_init(parent);
 	mop500_spi_init(parent);
@@ -267,25 +205,12 @@ static void __init snowball_init_machine(void)
 static void __init hrefv60_init_machine(void)
 {
 	struct device *parent = NULL;
-	int i;
 
 	platform_device_register(&db8500_prcmu_device);
-	/*
-	 * The HREFv60 board removed a GPIO expander and routed
-	 * all these GPIO pins to the internal GPIO controller
-	 * instead.
-	 */
-	mop500_gpio_keys[0].gpio = HREFV60_PROX_SENSE_GPIO;
 
 	hrefv60_pinmaps_init();
 	parent = u8500_init_devices();
 
-	for (i = 0; i < ARRAY_SIZE(mop500_platform_devs); i++)
-		mop500_platform_devs[i]->dev.parent = parent;
-
-	platform_add_devices(mop500_platform_devs,
-			ARRAY_SIZE(mop500_platform_devs));
-
 	mop500_i2c_init(parent);
 	hrefv60_sdi_init(parent);
 	mop500_spi_init(parent);
-- 
cgit 


From ceb519e94fc257429011c1cc9874c8bd75834f8d Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 21 Aug 2013 15:59:51 +0100
Subject: ARM: ux500: Remove I2C support when booting with ATAG support

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c   | 13 -------------
 arch/arm/mach-ux500/board-mop500.h   |  1 -
 arch/arm/mach-ux500/devices-common.h | 14 --------------
 arch/arm/mach-ux500/devices-db8500.h | 11 -----------
 4 files changed, 39 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 7109b3f21a63..a11e9dd0f4d7 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -14,8 +14,6 @@
 #include <linux/platform_device.h>
 #include <linux/clk.h>
 #include <linux/io.h>
-#include <linux/i2c.h>
-#include <linux/platform_data/i2c-nomadik.h>
 #include <linux/platform_data/db8500_thermal.h>
 #include <linux/gpio.h>
 #include <linux/amba/bus.h>
@@ -53,14 +51,6 @@ struct ab8500_platform_data ab8500_platdata = {
 	.regulator	= &ab8500_regulator_plat_data,
 };
 
-static void __init mop500_i2c_init(struct device *parent)
-{
-	db8500_add_i2c0(parent, NULL);
-	db8500_add_i2c1(parent, NULL);
-	db8500_add_i2c2(parent, NULL);
-	db8500_add_i2c3(parent, NULL);
-}
-
 #ifdef CONFIG_STE_DMA40
 static struct stedma40_chan_cfg ssp0_dma_cfg_rx = {
 	.mode = STEDMA40_MODE_LOGICAL,
@@ -174,7 +164,6 @@ static void __init mop500_init_machine(void)
 	mop500_pinmaps_init();
 	parent = u8500_init_devices();
 
-	mop500_i2c_init(parent);
 	mop500_sdi_init(parent);
 	mop500_spi_init(parent);
 	mop500_uart_init(parent);
@@ -193,7 +182,6 @@ static void __init snowball_init_machine(void)
 	snowball_pinmaps_init();
 	parent = u8500_init_devices();
 
-	mop500_i2c_init(parent);
 	snowball_sdi_init(parent);
 	mop500_spi_init(parent);
 	mop500_uart_init(parent);
@@ -211,7 +199,6 @@ static void __init hrefv60_init_machine(void)
 	hrefv60_pinmaps_init();
 	parent = u8500_init_devices();
 
-	mop500_i2c_init(parent);
 	hrefv60_sdi_init(parent);
 	mop500_spi_init(parent);
 	mop500_uart_init(parent);
diff --git a/arch/arm/mach-ux500/board-mop500.h b/arch/arm/mach-ux500/board-mop500.h
index cfc553c9e50d..341fad1122bb 100644
--- a/arch/arm/mach-ux500/board-mop500.h
+++ b/arch/arm/mach-ux500/board-mop500.h
@@ -79,7 +79,6 @@
 #define SNOWBALL_EN_3V3_ETH_GPIO	MOP500_AB8500_PIN_GPIO(26)	/* GPIO26 */
 
 struct device;
-struct i2c_board_info;
 extern struct mmci_platform_data mop500_sdi0_data;
 extern struct mmci_platform_data mop500_sdi1_data;
 extern struct mmci_platform_data mop500_sdi2_data;
diff --git a/arch/arm/mach-ux500/devices-common.h b/arch/arm/mach-ux500/devices-common.h
index 04fa009b5240..34ec2f75ec7b 100644
--- a/arch/arm/mach-ux500/devices-common.h
+++ b/arch/arm/mach-ux500/devices-common.h
@@ -12,7 +12,6 @@
 #include <linux/dma-mapping.h>
 #include <linux/sys_soc.h>
 #include <linux/amba/bus.h>
-#include <linux/platform_data/i2c-nomadik.h>
 
 struct spi_master_cntlr;
 
@@ -44,19 +43,6 @@ dbx500_add_uart(struct device *parent, const char *name, resource_size_t base,
 	return amba_ahb_device_add(parent, name, base, SZ_4K, irq, 0, pdata, 0);
 }
 
-struct nmk_i2c_controller;
-
-static inline struct amba_device *
-dbx500_add_i2c(struct device *parent, int id, resource_size_t base, int irq,
-	       struct nmk_i2c_controller *data)
-{
-	/* Conjure a name similar to what the platform device used to have */
-	char name[16];
-
-	snprintf(name, sizeof(name), "nmk-i2c.%d", id);
-	return amba_apb_device_add(parent, name, base, SZ_4K, irq, 0, data, 0);
-}
-
 static inline struct amba_device *
 dbx500_add_rtc(struct device *parent, resource_size_t base, int irq)
 {
diff --git a/arch/arm/mach-ux500/devices-db8500.h b/arch/arm/mach-ux500/devices-db8500.h
index 3d326688254d..64667f667f38 100644
--- a/arch/arm/mach-ux500/devices-db8500.h
+++ b/arch/arm/mach-ux500/devices-db8500.h
@@ -42,17 +42,6 @@ db8500_add_ssp(struct device *parent, const char *name, resource_size_t base,
 	return amba_ahb_device_add(parent, name, base, SZ_4K, irq, 0, pdata, 0);
 }
 
-#define db8500_add_i2c0(parent, pdata) \
-	dbx500_add_i2c(parent, 0, U8500_I2C0_BASE, IRQ_DB8500_I2C0, pdata)
-#define db8500_add_i2c1(parent, pdata) \
-	dbx500_add_i2c(parent, 1, U8500_I2C1_BASE, IRQ_DB8500_I2C1, pdata)
-#define db8500_add_i2c2(parent, pdata) \
-	dbx500_add_i2c(parent, 2, U8500_I2C2_BASE, IRQ_DB8500_I2C2, pdata)
-#define db8500_add_i2c3(parent, pdata) \
-	dbx500_add_i2c(parent, 3, U8500_I2C3_BASE, IRQ_DB8500_I2C3, pdata)
-#define db8500_add_i2c4(parent, pdata) \
-	dbx500_add_i2c(parent, 4, U8500_I2C4_BASE, IRQ_DB8500_I2C4, pdata)
-
 #define db8500_add_rtc(parent) \
 	dbx500_add_rtc(parent, U8500_RTC_BASE, IRQ_DB8500_RTC);
 
-- 
cgit 


From 8b0dd112197a132b55b9ed3cc023b0c494f3f5dc Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 21 Aug 2013 17:17:22 +0100
Subject: ARM: ux500: Purge SDI support for ATAG booting

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500-sdi.c | 39 ----------------------------------
 arch/arm/mach-ux500/board-mop500.c     |  3 ---
 arch/arm/mach-ux500/board-mop500.h     |  3 ---
 arch/arm/mach-ux500/devices-common.h   | 10 ---------
 arch/arm/mach-ux500/devices-db8500.h   | 19 -----------------
 5 files changed, 74 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500-sdi.c b/arch/arm/mach-ux500/board-mop500-sdi.c
index 1ae5999c45db..26600a1c5319 100644
--- a/arch/arm/mach-ux500/board-mop500-sdi.c
+++ b/arch/arm/mach-ux500/board-mop500-sdi.c
@@ -65,12 +65,6 @@ struct mmci_platform_data mop500_sdi0_data = {
 #endif
 };
 
-static void sdi0_configure(struct device *parent)
-{
-	/* Add the device, force v2 to subrevision 1 */
-	db8500_add_sdi0(parent, &mop500_sdi0_data, U8500_SDI_V2_PERIPHID);
-}
-
 /*
  * SDI1 (SDIO WLAN)
  */
@@ -172,36 +166,3 @@ struct mmci_platform_data mop500_sdi4_data = {
 	.dma_tx_param	= &mop500_sdi4_dma_cfg_tx,
 #endif
 };
-
-void __init mop500_sdi_init(struct device *parent)
-{
-	/* PoP:ed eMMC */
-	db8500_add_sdi2(parent, &mop500_sdi2_data, U8500_SDI_V2_PERIPHID);
-	/* On-board eMMC */
-	db8500_add_sdi4(parent, &mop500_sdi4_data, U8500_SDI_V2_PERIPHID);
-}
-
-void __init snowball_sdi_init(struct device *parent)
-{
-	/* On Snowball MMC_CAP_SD_HIGHSPEED isn't supported (Hardware issue?) */
-	mop500_sdi0_data.capabilities &= ~MMC_CAP_SD_HIGHSPEED;
-	/* On-board eMMC */
-	db8500_add_sdi4(parent, &mop500_sdi4_data, U8500_SDI_V2_PERIPHID);
-	/* External Micro SD slot */
-	mop500_sdi0_data.gpio_cd = SNOWBALL_SDMMC_CD_GPIO;
-	mop500_sdi0_data.cd_invert = true;
-	sdi0_configure(parent);
-}
-
-void __init hrefv60_sdi_init(struct device *parent)
-{
-	/* PoP:ed eMMC */
-	db8500_add_sdi2(parent, &mop500_sdi2_data, U8500_SDI_V2_PERIPHID);
-	/* On-board eMMC */
-	db8500_add_sdi4(parent, &mop500_sdi4_data, U8500_SDI_V2_PERIPHID);
-	/* External Micro SD slot */
-	mop500_sdi0_data.gpio_cd = HREFV60_SDMMC_CD_GPIO;
-	sdi0_configure(parent);
-	/* WLAN SDIO channel */
-	db8500_add_sdi1(parent, &mop500_sdi1_data, U8500_SDI_V2_PERIPHID);
-}
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index a11e9dd0f4d7..b468c7ccaf8f 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -164,7 +164,6 @@ static void __init mop500_init_machine(void)
 	mop500_pinmaps_init();
 	parent = u8500_init_devices();
 
-	mop500_sdi_init(parent);
 	mop500_spi_init(parent);
 	mop500_uart_init(parent);
 
@@ -182,7 +181,6 @@ static void __init snowball_init_machine(void)
 	snowball_pinmaps_init();
 	parent = u8500_init_devices();
 
-	snowball_sdi_init(parent);
 	mop500_spi_init(parent);
 	mop500_uart_init(parent);
 
@@ -199,7 +197,6 @@ static void __init hrefv60_init_machine(void)
 	hrefv60_pinmaps_init();
 	parent = u8500_init_devices();
 
-	hrefv60_sdi_init(parent);
 	mop500_spi_init(parent);
 	mop500_uart_init(parent);
 
diff --git a/arch/arm/mach-ux500/board-mop500.h b/arch/arm/mach-ux500/board-mop500.h
index 341fad1122bb..06eb894eafe9 100644
--- a/arch/arm/mach-ux500/board-mop500.h
+++ b/arch/arm/mach-ux500/board-mop500.h
@@ -94,9 +94,6 @@ extern struct amba_pl011_data uart2_plat;
 extern struct pl022_ssp_controller ssp0_plat;
 extern struct stedma40_platform_data dma40_plat_data;
 
-extern void mop500_sdi_init(struct device *parent);
-extern void snowball_sdi_init(struct device *parent);
-extern void hrefv60_sdi_init(struct device *parent);
 void __init mop500_u8500uib_init(void);
 void __init mop500_stuib_init(void);
 void __init mop500_pinmaps_init(void);
diff --git a/arch/arm/mach-ux500/devices-common.h b/arch/arm/mach-ux500/devices-common.h
index 34ec2f75ec7b..030f5a0fe245 100644
--- a/arch/arm/mach-ux500/devices-common.h
+++ b/arch/arm/mach-ux500/devices-common.h
@@ -24,16 +24,6 @@ dbx500_add_spi(struct device *parent, const char *name, resource_size_t base,
 				   pdata, periphid);
 }
 
-struct mmci_platform_data;
-
-static inline struct amba_device *
-dbx500_add_sdi(struct device *parent, const char *name, resource_size_t base,
-	       int irq, struct mmci_platform_data *pdata, u32 periphid)
-{
-	return amba_ahb_device_add(parent, name, base, SZ_4K, irq, 0,
-				   pdata, periphid);
-}
-
 struct amba_pl011_data;
 
 static inline struct amba_device *
diff --git a/arch/arm/mach-ux500/devices-db8500.h b/arch/arm/mach-ux500/devices-db8500.h
index 64667f667f38..e47039b9748f 100644
--- a/arch/arm/mach-ux500/devices-db8500.h
+++ b/arch/arm/mach-ux500/devices-db8500.h
@@ -49,25 +49,6 @@ db8500_add_ssp(struct device *parent, const char *name, resource_size_t base,
 	ux500_add_usb(parent, U8500_USBOTG_BASE, \
 		      IRQ_DB8500_USBOTG, rx_cfg, tx_cfg)
 
-#define db8500_add_sdi0(parent, pdata, pid) \
-	dbx500_add_sdi(parent, "sdi0", U8500_SDI0_BASE, \
-		       IRQ_DB8500_SDMMC0, pdata, pid)
-#define db8500_add_sdi1(parent, pdata, pid) \
-	dbx500_add_sdi(parent, "sdi1", U8500_SDI1_BASE, \
-		       IRQ_DB8500_SDMMC1, pdata, pid)
-#define db8500_add_sdi2(parent, pdata, pid) \
-	dbx500_add_sdi(parent, "sdi2", U8500_SDI2_BASE, \
-		       IRQ_DB8500_SDMMC2, pdata, pid)
-#define db8500_add_sdi3(parent, pdata, pid) \
-	dbx500_add_sdi(parent, "sdi3", U8500_SDI3_BASE, \
-		       IRQ_DB8500_SDMMC3, pdata, pid)
-#define db8500_add_sdi4(parent, pdata, pid) \
-	dbx500_add_sdi(parent, "sdi4", U8500_SDI4_BASE, \
-		       IRQ_DB8500_SDMMC4, pdata, pid)
-#define db8500_add_sdi5(parent, pdata, pid) \
-	dbx500_add_sdi(parent, "sdi5", U8500_SDI5_BASE, \
-		       IRQ_DB8500_SDMMC5, pdata, pid)
-
 #define db8500_add_ssp0(parent, pdata) \
 	db8500_add_ssp(parent, "ssp0", U8500_SSP0_BASE, \
 		       IRQ_DB8500_SSP0, pdata)
-- 
cgit 


From 28633c54bda633b18544c602fc94961a3999a361 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 22 Aug 2013 12:10:48 +0100
Subject: ARM: ux500: Rip out keypad initialisation which is no longer used

This is part of the ux500 conversion over to Device Tree only
booting, but this stuff haven't been used for years.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/devices-db8500.c | 20 --------------------
 arch/arm/mach-ux500/devices-db8500.h | 15 ---------------
 arch/arm/mach-ux500/devices.h        |  1 -
 3 files changed, 36 deletions(-)

diff --git a/arch/arm/mach-ux500/devices-db8500.c b/arch/arm/mach-ux500/devices-db8500.c
index bc316062e0c2..b612751ea75c 100644
--- a/arch/arm/mach-ux500/devices-db8500.c
+++ b/arch/arm/mach-ux500/devices-db8500.c
@@ -57,26 +57,6 @@ struct platform_device u8500_dma40_device = {
 	.resource = dma40_resources
 };
 
-struct resource keypad_resources[] = {
-	[0] = {
-		.start = U8500_SKE_BASE,
-		.end = U8500_SKE_BASE + SZ_4K - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = IRQ_DB8500_KB,
-		.end = IRQ_DB8500_KB,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-struct platform_device u8500_ske_keypad_device = {
-	.name = "nmk-ske-keypad",
-	.id = -1,
-	.num_resources = ARRAY_SIZE(keypad_resources),
-	.resource = keypad_resources,
-};
-
 struct prcmu_pdata db8500_prcmu_pdata = {
 	.ab_platdata	= &ab8500_platdata,
 	.ab_irq		= IRQ_DB8500_AB8500,
diff --git a/arch/arm/mach-ux500/devices-db8500.h b/arch/arm/mach-ux500/devices-db8500.h
index e47039b9748f..be1d538e8109 100644
--- a/arch/arm/mach-ux500/devices-db8500.h
+++ b/arch/arm/mach-ux500/devices-db8500.h
@@ -13,7 +13,6 @@
 #include "db8500-regs.h"
 #include "devices-common.h"
 
-struct ske_keypad_platform_data;
 struct pl022_ssp_controller;
 struct platform_device;
 
@@ -21,20 +20,6 @@ extern struct ab8500_platform_data ab8500_platdata;
 extern struct prcmu_pdata db8500_prcmu_pdata;
 extern struct platform_device db8500_prcmu_device;
 
-static inline struct platform_device *
-db8500_add_ske_keypad(struct device *parent,
-		      struct ske_keypad_platform_data *pdata,
-		      size_t size)
-{
-	struct resource resources[] = {
-		DEFINE_RES_MEM(U8500_SKE_BASE, SZ_4K),
-		DEFINE_RES_IRQ(IRQ_DB8500_KB),
-	};
-
-	return platform_device_register_resndata(parent, "nmk-ske-keypad", -1,
-						 resources, 2, pdata, size);
-}
-
 static inline struct amba_device *
 db8500_add_ssp(struct device *parent, const char *name, resource_size_t base,
 	       int irq, struct pl022_ssp_controller *pdata)
diff --git a/arch/arm/mach-ux500/devices.h b/arch/arm/mach-ux500/devices.h
index 9b5eb69a0154..eafb07a5597a 100644
--- a/arch/arm/mach-ux500/devices.h
+++ b/arch/arm/mach-ux500/devices.h
@@ -15,6 +15,5 @@ extern struct platform_device u8500_gpio_devs[];
 extern struct amba_device ux500_pl031_device;
 
 extern struct platform_device u8500_dma40_device;
-extern struct platform_device ux500_ske_keypad_device;
 
 #endif
-- 
cgit 


From aeef67ebab06177a1fb31c7cde9ea6b09732e049 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 14:48:27 +0100
Subject: ARM: ux500: Remove USB support when booting using ATAGs

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/Makefile         |   2 +-
 arch/arm/mach-ux500/cpu-db8500.c     |  12 ----
 arch/arm/mach-ux500/devices-db8500.h |   5 --
 arch/arm/mach-ux500/usb.c            | 135 -----------------------------------
 4 files changed, 1 insertion(+), 153 deletions(-)
 delete mode 100644 arch/arm/mach-ux500/usb.c

diff --git a/arch/arm/mach-ux500/Makefile b/arch/arm/mach-ux500/Makefile
index fe1f3e26b88b..685f6153aa39 100644
--- a/arch/arm/mach-ux500/Makefile
+++ b/arch/arm/mach-ux500/Makefile
@@ -3,7 +3,7 @@
 #
 
 obj-y				:= cpu.o devices.o devices-common.o \
-				   id.o usb.o timer.o pm.o
+				   id.o timer.o pm.o
 obj-$(CONFIG_CACHE_L2X0)	+= cache-l2x0.o
 obj-$(CONFIG_UX500_SOC_DB8500)	+= cpu-db8500.o devices-db8500.o
 obj-$(CONFIG_MACH_MOP500)	+= board-mop500.o board-mop500-sdi.o \
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index d5accc22b3e9..b236ec11c02d 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -162,17 +162,6 @@ static void __init db8500_add_gpios(struct device *parent)
 	dbx500_add_pinctrl(parent, "pinctrl-db8500", U8500_PRCMU_BASE);
 }
 
-static int usb_db8500_dma_cfg[] = {
-	DB8500_DMA_DEV38_USB_OTG_IEP_AND_OEP_1_9,
-	DB8500_DMA_DEV37_USB_OTG_IEP_AND_OEP_2_10,
-	DB8500_DMA_DEV36_USB_OTG_IEP_AND_OEP_3_11,
-	DB8500_DMA_DEV19_USB_OTG_IEP_AND_OEP_4_12,
-	DB8500_DMA_DEV18_USB_OTG_IEP_AND_OEP_5_13,
-	DB8500_DMA_DEV17_USB_OTG_IEP_AND_OEP_6_14,
-	DB8500_DMA_DEV16_USB_OTG_IEP_AND_OEP_7_15,
-	DB8500_DMA_DEV39_USB_OTG_IEP_AND_OEP_8
-};
-
 static const char *db8500_read_soc_id(void)
 {
 	void __iomem *uid = __io_address(U8500_BB_UID_BASE);
@@ -204,7 +193,6 @@ struct device * __init u8500_init_devices(void)
 
 	db8500_add_rtc(parent);
 	db8500_add_gpios(parent);
-	db8500_add_usb(parent, usb_db8500_dma_cfg, usb_db8500_dma_cfg);
 
 	for (i = 0; i < ARRAY_SIZE(platform_devs); i++)
 		platform_devs[i]->dev.parent = parent;
diff --git a/arch/arm/mach-ux500/devices-db8500.h b/arch/arm/mach-ux500/devices-db8500.h
index be1d538e8109..935240002440 100644
--- a/arch/arm/mach-ux500/devices-db8500.h
+++ b/arch/arm/mach-ux500/devices-db8500.h
@@ -8,7 +8,6 @@
 #ifndef __DEVICES_DB8500_H
 #define __DEVICES_DB8500_H
 
-#include <linux/platform_data/usb-musb-ux500.h>
 #include "irqs.h"
 #include "db8500-regs.h"
 #include "devices-common.h"
@@ -30,10 +29,6 @@ db8500_add_ssp(struct device *parent, const char *name, resource_size_t base,
 #define db8500_add_rtc(parent) \
 	dbx500_add_rtc(parent, U8500_RTC_BASE, IRQ_DB8500_RTC);
 
-#define db8500_add_usb(parent, rx_cfg, tx_cfg) \
-	ux500_add_usb(parent, U8500_USBOTG_BASE, \
-		      IRQ_DB8500_USBOTG, rx_cfg, tx_cfg)
-
 #define db8500_add_ssp0(parent, pdata) \
 	db8500_add_ssp(parent, "ssp0", U8500_SSP0_BASE, \
 		       IRQ_DB8500_SSP0, pdata)
diff --git a/arch/arm/mach-ux500/usb.c b/arch/arm/mach-ux500/usb.c
deleted file mode 100644
index b7bd8d3a5507..000000000000
--- a/arch/arm/mach-ux500/usb.c
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- * Copyright (C) ST-Ericsson SA 2011
- *
- * Author: Mian Yousaf Kaukab <mian.yousaf.kaukab@stericsson.com>
- * License terms: GNU General Public License (GPL) version 2
- */
-#include <linux/platform_device.h>
-#include <linux/usb/musb.h>
-#include <linux/dma-mapping.h>
-#include <linux/platform_data/usb-musb-ux500.h>
-#include <linux/platform_data/dma-ste-dma40.h>
-
-#include "db8500-regs.h"
-
-#define MUSB_DMA40_RX_CH { \
-		.mode = STEDMA40_MODE_LOGICAL, \
-		.dir = DMA_DEV_TO_MEM, \
-	}
-
-#define MUSB_DMA40_TX_CH { \
-		.mode = STEDMA40_MODE_LOGICAL, \
-		.dir = DMA_MEM_TO_DEV, \
-	}
-
-static struct stedma40_chan_cfg musb_dma_rx_ch[UX500_MUSB_DMA_NUM_RX_TX_CHANNELS]
-	= {
-	MUSB_DMA40_RX_CH,
-	MUSB_DMA40_RX_CH,
-	MUSB_DMA40_RX_CH,
-	MUSB_DMA40_RX_CH,
-	MUSB_DMA40_RX_CH,
-	MUSB_DMA40_RX_CH,
-	MUSB_DMA40_RX_CH,
-	MUSB_DMA40_RX_CH
-};
-
-static struct stedma40_chan_cfg musb_dma_tx_ch[UX500_MUSB_DMA_NUM_RX_TX_CHANNELS]
-	= {
-	MUSB_DMA40_TX_CH,
-	MUSB_DMA40_TX_CH,
-	MUSB_DMA40_TX_CH,
-	MUSB_DMA40_TX_CH,
-	MUSB_DMA40_TX_CH,
-	MUSB_DMA40_TX_CH,
-	MUSB_DMA40_TX_CH,
-	MUSB_DMA40_TX_CH,
-};
-
-static void *ux500_dma_rx_param_array[UX500_MUSB_DMA_NUM_RX_TX_CHANNELS] = {
-	&musb_dma_rx_ch[0],
-	&musb_dma_rx_ch[1],
-	&musb_dma_rx_ch[2],
-	&musb_dma_rx_ch[3],
-	&musb_dma_rx_ch[4],
-	&musb_dma_rx_ch[5],
-	&musb_dma_rx_ch[6],
-	&musb_dma_rx_ch[7]
-};
-
-static void *ux500_dma_tx_param_array[UX500_MUSB_DMA_NUM_RX_TX_CHANNELS] = {
-	&musb_dma_tx_ch[0],
-	&musb_dma_tx_ch[1],
-	&musb_dma_tx_ch[2],
-	&musb_dma_tx_ch[3],
-	&musb_dma_tx_ch[4],
-	&musb_dma_tx_ch[5],
-	&musb_dma_tx_ch[6],
-	&musb_dma_tx_ch[7]
-};
-
-static struct ux500_musb_board_data musb_board_data = {
-	.dma_rx_param_array = ux500_dma_rx_param_array,
-	.dma_tx_param_array = ux500_dma_tx_param_array,
-	.dma_filter = stedma40_filter,
-};
-
-static struct musb_hdrc_platform_data musb_platform_data = {
-	.mode = MUSB_OTG,
-	.board_data = &musb_board_data,
-};
-
-static struct resource usb_resources[] = {
-	[0] = {
-		.name	= "usb-mem",
-		.flags	=  IORESOURCE_MEM,
-	},
-
-	[1] = {
-		.name   = "mc", /* hard-coded in musb */
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-struct platform_device ux500_musb_device = {
-	.name = "musb-ux500",
-	.id = 0,
-	.dev = {
-		.platform_data = &musb_platform_data,
-		.coherent_dma_mask = DMA_BIT_MASK(32),
-	},
-	.num_resources = ARRAY_SIZE(usb_resources),
-	.resource = usb_resources,
-};
-
-static inline void ux500_usb_dma_update_rx_ch_config(int *dev_type)
-{
-	u32 idx;
-
-	for (idx = 0; idx < UX500_MUSB_DMA_NUM_RX_TX_CHANNELS; idx++)
-		musb_dma_rx_ch[idx].dev_type = dev_type[idx];
-}
-
-static inline void ux500_usb_dma_update_tx_ch_config(int *dev_type)
-{
-	u32 idx;
-
-	for (idx = 0; idx < UX500_MUSB_DMA_NUM_RX_TX_CHANNELS; idx++)
-		musb_dma_tx_ch[idx].dev_type = dev_type[idx];
-}
-
-void ux500_add_usb(struct device *parent, resource_size_t base, int irq,
-		   int *dma_rx_cfg, int *dma_tx_cfg)
-{
-	ux500_musb_device.resource[0].start = base;
-	ux500_musb_device.resource[0].end = base + SZ_64K - 1;
-	ux500_musb_device.resource[1].start = irq;
-	ux500_musb_device.resource[1].end = irq;
-
-	ux500_usb_dma_update_rx_ch_config(dma_rx_cfg);
-	ux500_usb_dma_update_tx_ch_config(dma_tx_cfg);
-
-	ux500_musb_device.dev.parent = parent;
-
-	platform_device_register(&ux500_musb_device);
-}
-- 
cgit 


From 503caf96778453875da8c45d41d4e4c587380071 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 22 Aug 2013 14:54:30 +0100
Subject: ARM: ux500: Purge support for registering the RTC when booting with
 ATAGs

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/cpu-db8500.c     | 1 -
 arch/arm/mach-ux500/devices-common.h | 7 -------
 arch/arm/mach-ux500/devices-db8500.h | 3 ---
 3 files changed, 11 deletions(-)

diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index b236ec11c02d..d98ddb361e85 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -191,7 +191,6 @@ struct device * __init u8500_init_devices(void)
 
 	parent = db8500_soc_device_init();
 
-	db8500_add_rtc(parent);
 	db8500_add_gpios(parent);
 
 	for (i = 0; i < ARRAY_SIZE(platform_devs); i++)
diff --git a/arch/arm/mach-ux500/devices-common.h b/arch/arm/mach-ux500/devices-common.h
index 030f5a0fe245..360112e2e23a 100644
--- a/arch/arm/mach-ux500/devices-common.h
+++ b/arch/arm/mach-ux500/devices-common.h
@@ -33,13 +33,6 @@ dbx500_add_uart(struct device *parent, const char *name, resource_size_t base,
 	return amba_ahb_device_add(parent, name, base, SZ_4K, irq, 0, pdata, 0);
 }
 
-static inline struct amba_device *
-dbx500_add_rtc(struct device *parent, resource_size_t base, int irq)
-{
-	return amba_apb_device_add(parent, "rtc-pl031", base, SZ_4K, irq,
-				0, NULL, 0);
-}
-
 struct nmk_gpio_platform_data;
 
 void dbx500_add_gpios(struct device *parent, resource_size_t *base, int num,
diff --git a/arch/arm/mach-ux500/devices-db8500.h b/arch/arm/mach-ux500/devices-db8500.h
index 935240002440..0b523b50aa06 100644
--- a/arch/arm/mach-ux500/devices-db8500.h
+++ b/arch/arm/mach-ux500/devices-db8500.h
@@ -26,9 +26,6 @@ db8500_add_ssp(struct device *parent, const char *name, resource_size_t base,
 	return amba_ahb_device_add(parent, name, base, SZ_4K, irq, 0, pdata, 0);
 }
 
-#define db8500_add_rtc(parent) \
-	dbx500_add_rtc(parent, U8500_RTC_BASE, IRQ_DB8500_RTC);
-
 #define db8500_add_ssp0(parent, pdata) \
 	db8500_add_ssp(parent, "ssp0", U8500_SSP0_BASE, \
 		       IRQ_DB8500_SSP0, pdata)
-- 
cgit 


From 2120c3bfc5c5fbd12a851d5823c8e1e01deccfe7 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Fri, 23 Aug 2013 10:29:22 +0100
Subject: ARM: ux500: Stop registering Pinctrl when booting with ATAG support

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/cpu-db8500.c     |  1 -
 arch/arm/mach-ux500/devices-common.h | 18 ------------------
 2 files changed, 19 deletions(-)

diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index d98ddb361e85..93b92d483949 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -159,7 +159,6 @@ static void __init db8500_add_gpios(struct device *parent)
 	dbx500_add_gpios(parent, db8500_gpio_base,
 			 ARRAY_SIZE(db8500_gpio_base),
 			 IRQ_DB8500_GPIO0, &pdata);
-	dbx500_add_pinctrl(parent, "pinctrl-db8500", U8500_PRCMU_BASE);
 }
 
 static const char *db8500_read_soc_id(void)
diff --git a/arch/arm/mach-ux500/devices-common.h b/arch/arm/mach-ux500/devices-common.h
index 360112e2e23a..7167b6951c53 100644
--- a/arch/arm/mach-ux500/devices-common.h
+++ b/arch/arm/mach-ux500/devices-common.h
@@ -38,22 +38,4 @@ struct nmk_gpio_platform_data;
 void dbx500_add_gpios(struct device *parent, resource_size_t *base, int num,
 		      int irq, struct nmk_gpio_platform_data *pdata);
 
-static inline void
-dbx500_add_pinctrl(struct device *parent, const char *name,
-		   resource_size_t base)
-{
-	struct resource res[] = {
-		DEFINE_RES_MEM(base, SZ_8K),
-	};
-	struct platform_device_info pdevinfo = {
-		.parent = parent,
-		.name = name,
-		.id = -1,
-		.res = res,
-		.num_res = ARRAY_SIZE(res),
-	};
-
-	platform_device_register_full(&pdevinfo);
-}
-
 #endif
-- 
cgit 


From f1ff5b2549990b5de080b52e3313cbb30c218853 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 14:49:52 +0100
Subject: ARM: ux500: Stop enabling GPIOs when not booting with Device Tree

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c   |  2 --
 arch/arm/mach-ux500/cpu-db8500.c     | 25 ---------------
 arch/arm/mach-ux500/devices-common.c | 60 ------------------------------------
 arch/arm/mach-ux500/devices-common.h |  5 ---
 arch/arm/mach-ux500/devices-db8500.c |  1 -
 arch/arm/mach-ux500/devices.h        |  2 --
 6 files changed, 95 deletions(-)
 delete mode 100644 arch/arm/mach-ux500/devices-common.c

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index b468c7ccaf8f..1c0fd8316f9a 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -15,7 +15,6 @@
 #include <linux/clk.h>
 #include <linux/io.h>
 #include <linux/platform_data/db8500_thermal.h>
-#include <linux/gpio.h>
 #include <linux/amba/bus.h>
 #include <linux/amba/pl022.h>
 #include <linux/amba/serial.h>
@@ -25,7 +24,6 @@
 #include <linux/regulator/fixed.h>
 #include <linux/regulator/driver.h>
 #include <linux/mfd/tps6105x.h>
-#include <linux/mfd/abx500/ab8500-gpio.h>
 #include <linux/platform_data/leds-lp55xx.h>
 #include <linux/input.h>
 #include <linux/delay.h>
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 93b92d483949..a9221cc019d6 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -138,29 +138,6 @@ static struct platform_device *platform_devs[] __initdata = {
 	&db8500_pmu_device,
 };
 
-static resource_size_t __initdata db8500_gpio_base[] = {
-	U8500_GPIOBANK0_BASE,
-	U8500_GPIOBANK1_BASE,
-	U8500_GPIOBANK2_BASE,
-	U8500_GPIOBANK3_BASE,
-	U8500_GPIOBANK4_BASE,
-	U8500_GPIOBANK5_BASE,
-	U8500_GPIOBANK6_BASE,
-	U8500_GPIOBANK7_BASE,
-	U8500_GPIOBANK8_BASE,
-};
-
-static void __init db8500_add_gpios(struct device *parent)
-{
-	struct nmk_gpio_platform_data pdata = {
-		.supports_sleepmode = true,
-	};
-
-	dbx500_add_gpios(parent, db8500_gpio_base,
-			 ARRAY_SIZE(db8500_gpio_base),
-			 IRQ_DB8500_GPIO0, &pdata);
-}
-
 static const char *db8500_read_soc_id(void)
 {
 	void __iomem *uid = __io_address(U8500_BB_UID_BASE);
@@ -190,8 +167,6 @@ struct device * __init u8500_init_devices(void)
 
 	parent = db8500_soc_device_init();
 
-	db8500_add_gpios(parent);
-
 	for (i = 0; i < ARRAY_SIZE(platform_devs); i++)
 		platform_devs[i]->dev.parent = parent;
 
diff --git a/arch/arm/mach-ux500/devices-common.c b/arch/arm/mach-ux500/devices-common.c
deleted file mode 100644
index f71b3d7bd4fb..000000000000
--- a/arch/arm/mach-ux500/devices-common.c
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * Copyright (C) ST-Ericsson SA 2010
- *
- * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
- * License terms: GNU General Public License (GPL), version 2.
- */
-
-#include <linux/kernel.h>
-#include <linux/dma-mapping.h>
-#include <linux/err.h>
-#include <linux/irq.h>
-#include <linux/slab.h>
-#include <linux/platform_device.h>
-#include <linux/platform_data/pinctrl-nomadik.h>
-
-#include "irqs.h"
-
-#include "devices-common.h"
-
-static struct platform_device *
-dbx500_add_gpio(struct device *parent, int id, resource_size_t addr, int irq,
-		struct nmk_gpio_platform_data *pdata)
-{
-	struct resource resources[] = {
-		{
-			.start	= addr,
-			.end	= addr + 127,
-			.flags	= IORESOURCE_MEM,
-		},
-		{
-			.start	= irq,
-			.end	= irq,
-			.flags	= IORESOURCE_IRQ,
-		}
-	};
-
-	return platform_device_register_resndata(
-		parent,
-		"gpio",
-		id,
-		resources,
-		ARRAY_SIZE(resources),
-		pdata,
-		sizeof(*pdata));
-}
-
-void dbx500_add_gpios(struct device *parent, resource_size_t *base, int num,
-		      int irq, struct nmk_gpio_platform_data *pdata)
-{
-	int first = 0;
-	int i;
-
-	for (i = 0; i < num; i++, first += 32, irq++) {
-		pdata->first_gpio = first;
-		pdata->first_irq = NOMADIK_GPIO_TO_IRQ(first);
-		pdata->num_gpio = 32;
-
-		dbx500_add_gpio(parent, i, base[i], irq, pdata);
-	}
-}
diff --git a/arch/arm/mach-ux500/devices-common.h b/arch/arm/mach-ux500/devices-common.h
index 7167b6951c53..ce48a024c034 100644
--- a/arch/arm/mach-ux500/devices-common.h
+++ b/arch/arm/mach-ux500/devices-common.h
@@ -33,9 +33,4 @@ dbx500_add_uart(struct device *parent, const char *name, resource_size_t base,
 	return amba_ahb_device_add(parent, name, base, SZ_4K, irq, 0, pdata, 0);
 }
 
-struct nmk_gpio_platform_data;
-
-void dbx500_add_gpios(struct device *parent, resource_size_t *base, int num,
-		      int irq, struct nmk_gpio_platform_data *pdata);
-
 #endif
diff --git a/arch/arm/mach-ux500/devices-db8500.c b/arch/arm/mach-ux500/devices-db8500.c
index b612751ea75c..071b588d33b0 100644
--- a/arch/arm/mach-ux500/devices-db8500.c
+++ b/arch/arm/mach-ux500/devices-db8500.c
@@ -9,7 +9,6 @@
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
-#include <linux/gpio.h>
 #include <linux/amba/bus.h>
 #include <linux/amba/pl022.h>
 #include <linux/platform_data/dma-ste-dma40.h>
diff --git a/arch/arm/mach-ux500/devices.h b/arch/arm/mach-ux500/devices.h
index eafb07a5597a..da23c0596d9e 100644
--- a/arch/arm/mach-ux500/devices.h
+++ b/arch/arm/mach-ux500/devices.h
@@ -10,8 +10,6 @@
 struct platform_device;
 struct amba_device;
 
-extern struct platform_device u8500_gpio_devs[];
-
 extern struct amba_device ux500_pl031_device;
 
 extern struct platform_device u8500_dma40_device;
-- 
cgit 


From 4f01a04cdeefdc52e3c5379726c293e51bdd3f2b Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 14:50:59 +0100
Subject: ARM: ux500: Deactivate enablement of DMA40 during ATAG booting

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.h   |  1 -
 arch/arm/mach-ux500/cpu-db8500.c     |  2 --
 arch/arm/mach-ux500/devices-db8500.c | 37 ------------------------------------
 arch/arm/mach-ux500/devices.h        |  2 --
 4 files changed, 42 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.h b/arch/arm/mach-ux500/board-mop500.h
index 06eb894eafe9..3b35a73e239e 100644
--- a/arch/arm/mach-ux500/board-mop500.h
+++ b/arch/arm/mach-ux500/board-mop500.h
@@ -92,7 +92,6 @@ extern struct amba_pl011_data uart0_plat;
 extern struct amba_pl011_data uart1_plat;
 extern struct amba_pl011_data uart2_plat;
 extern struct pl022_ssp_controller ssp0_plat;
-extern struct stedma40_platform_data dma40_plat_data;
 
 void __init mop500_u8500uib_init(void);
 void __init mop500_stuib_init(void);
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index a9221cc019d6..9c0c9a70715a 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -32,7 +32,6 @@
 #include "irqs.h"
 
 #include "devices-db8500.h"
-#include "ste-dma40-db8500.h"
 #include "db8500-regs.h"
 #include "board-mop500.h"
 #include "id.h"
@@ -134,7 +133,6 @@ static struct platform_device db8500_pmu_device = {
 };
 
 static struct platform_device *platform_devs[] __initdata = {
-	&u8500_dma40_device,
 	&db8500_pmu_device,
 };
 
diff --git a/arch/arm/mach-ux500/devices-db8500.c b/arch/arm/mach-ux500/devices-db8500.c
index 071b588d33b0..1b2fabaee3ce 100644
--- a/arch/arm/mach-ux500/devices-db8500.c
+++ b/arch/arm/mach-ux500/devices-db8500.c
@@ -11,7 +11,6 @@
 #include <linux/io.h>
 #include <linux/amba/bus.h>
 #include <linux/amba/pl022.h>
-#include <linux/platform_data/dma-ste-dma40.h>
 #include <linux/mfd/dbx500-prcmu.h>
 
 #include "setup.h"
@@ -19,42 +18,6 @@
 
 #include "db8500-regs.h"
 #include "devices-db8500.h"
-#include "ste-dma40-db8500.h"
-
-static struct resource dma40_resources[] = {
-	[0] = {
-		.start = U8500_DMA_BASE,
-		.end   = U8500_DMA_BASE + SZ_4K - 1,
-		.flags = IORESOURCE_MEM,
-		.name  = "base",
-	},
-	[1] = {
-		.start = U8500_DMA_LCPA_BASE,
-		.end   = U8500_DMA_LCPA_BASE + 2 * SZ_1K - 1,
-		.flags = IORESOURCE_MEM,
-		.name  = "lcpa",
-	},
-	[2] = {
-		.start = IRQ_DB8500_DMA,
-		.end   = IRQ_DB8500_DMA,
-		.flags = IORESOURCE_IRQ,
-	}
-};
-
-struct stedma40_platform_data dma40_plat_data = {
-	.disabled_channels = {-1},
-};
-
-struct platform_device u8500_dma40_device = {
-	.dev = {
-		.platform_data = &dma40_plat_data,
-		.coherent_dma_mask = DMA_BIT_MASK(32),
-	},
-	.name = "dma40",
-	.id = 0,
-	.num_resources = ARRAY_SIZE(dma40_resources),
-	.resource = dma40_resources
-};
 
 struct prcmu_pdata db8500_prcmu_pdata = {
 	.ab_platdata	= &ab8500_platdata,
diff --git a/arch/arm/mach-ux500/devices.h b/arch/arm/mach-ux500/devices.h
index da23c0596d9e..5bca7c605cd6 100644
--- a/arch/arm/mach-ux500/devices.h
+++ b/arch/arm/mach-ux500/devices.h
@@ -12,6 +12,4 @@ struct amba_device;
 
 extern struct amba_device ux500_pl031_device;
 
-extern struct platform_device u8500_dma40_device;
-
 #endif
-- 
cgit 


From a6fdf37e2a8fd16873d9772ba10f7ab8737aca4f Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 22 Aug 2013 13:28:12 +0100
Subject: ARM: ux500: Do not register the PMU device if booting with ATAGs

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.h |  1 -
 arch/arm/mach-ux500/cpu-db8500.c   | 32 +-------------------------------
 2 files changed, 1 insertion(+), 32 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.h b/arch/arm/mach-ux500/board-mop500.h
index 3b35a73e239e..2cced8bcd8c6 100644
--- a/arch/arm/mach-ux500/board-mop500.h
+++ b/arch/arm/mach-ux500/board-mop500.h
@@ -87,7 +87,6 @@ extern struct msp_i2s_platform_data msp0_platform_data;
 extern struct msp_i2s_platform_data msp1_platform_data;
 extern struct msp_i2s_platform_data msp2_platform_data;
 extern struct msp_i2s_platform_data msp3_platform_data;
-extern struct arm_pmu_platdata db8500_pmu_platdata;
 extern struct amba_pl011_data uart0_plat;
 extern struct amba_pl011_data uart1_plat;
 extern struct amba_pl011_data uart2_plat;
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 9c0c9a70715a..89232dd99673 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -92,14 +92,6 @@ void __init u8500_map_io(void)
 		iotable_init(u8500_io_desc, ARRAY_SIZE(u8500_io_desc));
 }
 
-static struct resource db8500_pmu_resources[] = {
-	[0] = {
-		.start		= IRQ_DB8500_PMU,
-		.end		= IRQ_DB8500_PMU,
-		.flags		= IORESOURCE_IRQ,
-	},
-};
-
 /*
  * The PMU IRQ lines of two cores are wired together into a single interrupt.
  * Bounce the interrupt to the other core if it's not ours.
@@ -124,18 +116,6 @@ struct arm_pmu_platdata db8500_pmu_platdata = {
 	.handle_irq		= db8500_pmu_handler,
 };
 
-static struct platform_device db8500_pmu_device = {
-	.name			= "arm-pmu",
-	.id			= -1,
-	.num_resources		= ARRAY_SIZE(db8500_pmu_resources),
-	.resource		= db8500_pmu_resources,
-	.dev.platform_data	= &db8500_pmu_platdata,
-};
-
-static struct platform_device *platform_devs[] __initdata = {
-	&db8500_pmu_device,
-};
-
 static const char *db8500_read_soc_id(void)
 {
 	void __iomem *uid = __io_address(U8500_BB_UID_BASE);
@@ -160,17 +140,7 @@ static struct device * __init db8500_soc_device_init(void)
  */
 struct device * __init u8500_init_devices(void)
 {
-	struct device *parent;
-	int i;
-
-	parent = db8500_soc_device_init();
-
-	for (i = 0; i < ARRAY_SIZE(platform_devs); i++)
-		platform_devs[i]->dev.parent = parent;
-
-	platform_add_devices(platform_devs, ARRAY_SIZE(platform_devs));
-
-	return parent;
+	return db8500_soc_device_init();
 }
 
 #ifdef CONFIG_MACH_UX500_DT
-- 
cgit 


From 1bef5c6722b8e4444c7a1bf5c464d8e464ed7fa8 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 22 Aug 2013 14:58:29 +0100
Subject: ARM: ux500: Rip out SSP/SPI registration when not booting with Device
 Tree

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c   |  9 ---------
 arch/arm/mach-ux500/devices-common.h | 11 -----------
 arch/arm/mach-ux500/devices-db8500.h | 28 ----------------------------
 3 files changed, 48 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 1c0fd8316f9a..6cad4123d6fc 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -18,7 +18,6 @@
 #include <linux/amba/bus.h>
 #include <linux/amba/pl022.h>
 #include <linux/amba/serial.h>
-#include <linux/spi/spi.h>
 #include <linux/mfd/abx500/ab8500.h>
 #include <linux/regulator/ab8500.h>
 #include <linux/regulator/fixed.h>
@@ -79,11 +78,6 @@ struct pl022_ssp_controller ssp0_plat = {
 	.num_chipselect = 5,
 };
 
-static void __init mop500_spi_init(struct device *parent)
-{
-	db8500_add_ssp0(parent, &ssp0_plat);
-}
-
 #ifdef CONFIG_STE_DMA40
 static struct stedma40_chan_cfg uart0_dma_cfg_rx = {
 	.mode = STEDMA40_MODE_LOGICAL,
@@ -162,7 +156,6 @@ static void __init mop500_init_machine(void)
 	mop500_pinmaps_init();
 	parent = u8500_init_devices();
 
-	mop500_spi_init(parent);
 	mop500_uart_init(parent);
 
 	/* This board has full regulator constraints */
@@ -179,7 +172,6 @@ static void __init snowball_init_machine(void)
 	snowball_pinmaps_init();
 	parent = u8500_init_devices();
 
-	mop500_spi_init(parent);
 	mop500_uart_init(parent);
 
 	/* This board has full regulator constraints */
@@ -195,7 +187,6 @@ static void __init hrefv60_init_machine(void)
 	hrefv60_pinmaps_init();
 	parent = u8500_init_devices();
 
-	mop500_spi_init(parent);
 	mop500_uart_init(parent);
 
 	/* This board has full regulator constraints */
diff --git a/arch/arm/mach-ux500/devices-common.h b/arch/arm/mach-ux500/devices-common.h
index ce48a024c034..15bf1ab22399 100644
--- a/arch/arm/mach-ux500/devices-common.h
+++ b/arch/arm/mach-ux500/devices-common.h
@@ -13,17 +13,6 @@
 #include <linux/sys_soc.h>
 #include <linux/amba/bus.h>
 
-struct spi_master_cntlr;
-
-static inline struct amba_device *
-dbx500_add_spi(struct device *parent, const char *name, resource_size_t base,
-	       int irq, struct spi_master_cntlr *pdata,
-	       u32 periphid)
-{
-	return amba_ahb_device_add(parent, name, base, SZ_4K, irq, 0,
-				   pdata, periphid);
-}
-
 struct amba_pl011_data;
 
 static inline struct amba_device *
diff --git a/arch/arm/mach-ux500/devices-db8500.h b/arch/arm/mach-ux500/devices-db8500.h
index 0b523b50aa06..e6ac6d23138c 100644
--- a/arch/arm/mach-ux500/devices-db8500.h
+++ b/arch/arm/mach-ux500/devices-db8500.h
@@ -12,40 +12,12 @@
 #include "db8500-regs.h"
 #include "devices-common.h"
 
-struct pl022_ssp_controller;
 struct platform_device;
 
 extern struct ab8500_platform_data ab8500_platdata;
 extern struct prcmu_pdata db8500_prcmu_pdata;
 extern struct platform_device db8500_prcmu_device;
 
-static inline struct amba_device *
-db8500_add_ssp(struct device *parent, const char *name, resource_size_t base,
-	       int irq, struct pl022_ssp_controller *pdata)
-{
-	return amba_ahb_device_add(parent, name, base, SZ_4K, irq, 0, pdata, 0);
-}
-
-#define db8500_add_ssp0(parent, pdata) \
-	db8500_add_ssp(parent, "ssp0", U8500_SSP0_BASE, \
-		       IRQ_DB8500_SSP0, pdata)
-#define db8500_add_ssp1(parent, pdata) \
-	db8500_add_ssp(parent, "ssp1", U8500_SSP1_BASE, \
-		       IRQ_DB8500_SSP1, pdata)
-
-#define db8500_add_spi0(parent, pdata) \
-	dbx500_add_spi(parent, "spi0", U8500_SPI0_BASE, \
-		       IRQ_DB8500_SPI0, pdata, 0)
-#define db8500_add_spi1(parent, pdata) \
-	dbx500_add_spi(parent, "spi1", U8500_SPI1_BASE, \
-		       IRQ_DB8500_SPI1, pdata, 0)
-#define db8500_add_spi2(parent, pdata) \
-	dbx500_add_spi(parent, "spi2", U8500_SPI2_BASE, \
-		       IRQ_DB8500_SPI2, pdata, 0)
-#define db8500_add_spi3(parent, pdata) \
-	dbx500_add_spi(parent, "spi3", U8500_SPI3_BASE, \
-		       IRQ_DB8500_SPI3, pdata, 0)
-
 #define db8500_add_uart0(parent, pdata) \
 	dbx500_add_uart(parent, "uart0", U8500_UART0_BASE, \
 			IRQ_DB8500_UART0, pdata)
-- 
cgit 


From df630d71f7b6301cba3f1ad613ceba6d9c4bd12c Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 22 Aug 2013 15:41:30 +0100
Subject: ARM: ux500: Stop initialising the pinmaps when booting with ATAGs

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 6cad4123d6fc..f4deec6b4581 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -153,7 +153,6 @@ static void __init mop500_init_machine(void)
 
 	platform_device_register(&db8500_prcmu_device);
 
-	mop500_pinmaps_init();
 	parent = u8500_init_devices();
 
 	mop500_uart_init(parent);
@@ -169,7 +168,6 @@ static void __init snowball_init_machine(void)
 
 	platform_device_register(&db8500_prcmu_device);
 
-	snowball_pinmaps_init();
 	parent = u8500_init_devices();
 
 	mop500_uart_init(parent);
@@ -184,7 +182,6 @@ static void __init hrefv60_init_machine(void)
 
 	platform_device_register(&db8500_prcmu_device);
 
-	hrefv60_pinmaps_init();
 	parent = u8500_init_devices();
 
 	mop500_uart_init(parent);
-- 
cgit 


From a0998b8321eb5f53ef51924f5ab6c69237ac1025 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 22 Aug 2013 16:18:56 +0100
Subject: ARM: ux500: Remove UART support when booting without Device Tree

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c   | 76 ------------------------------------
 arch/arm/mach-ux500/board-mop500.h   |  3 --
 arch/arm/mach-ux500/devices-common.h | 10 -----
 arch/arm/mach-ux500/devices-db8500.h | 10 -----
 4 files changed, 99 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index f4deec6b4581..f8885c56abf2 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -17,7 +17,6 @@
 #include <linux/platform_data/db8500_thermal.h>
 #include <linux/amba/bus.h>
 #include <linux/amba/pl022.h>
-#include <linux/amba/serial.h>
 #include <linux/mfd/abx500/ab8500.h>
 #include <linux/regulator/ab8500.h>
 #include <linux/regulator/fixed.h>
@@ -78,75 +77,6 @@ struct pl022_ssp_controller ssp0_plat = {
 	.num_chipselect = 5,
 };
 
-#ifdef CONFIG_STE_DMA40
-static struct stedma40_chan_cfg uart0_dma_cfg_rx = {
-	.mode = STEDMA40_MODE_LOGICAL,
-	.dir = DMA_DEV_TO_MEM,
-	.dev_type = DB8500_DMA_DEV13_UART0,
-};
-
-static struct stedma40_chan_cfg uart0_dma_cfg_tx = {
-	.mode = STEDMA40_MODE_LOGICAL,
-	.dir = DMA_MEM_TO_DEV,
-	.dev_type = DB8500_DMA_DEV13_UART0,
-};
-
-static struct stedma40_chan_cfg uart1_dma_cfg_rx = {
-	.mode = STEDMA40_MODE_LOGICAL,
-	.dir = DMA_DEV_TO_MEM,
-	.dev_type = DB8500_DMA_DEV12_UART1,
-};
-
-static struct stedma40_chan_cfg uart1_dma_cfg_tx = {
-	.mode = STEDMA40_MODE_LOGICAL,
-	.dir = DMA_MEM_TO_DEV,
-	.dev_type = DB8500_DMA_DEV12_UART1,
-};
-
-static struct stedma40_chan_cfg uart2_dma_cfg_rx = {
-	.mode = STEDMA40_MODE_LOGICAL,
-	.dir = DMA_DEV_TO_MEM,
-	.dev_type = DB8500_DMA_DEV11_UART2,
-};
-
-static struct stedma40_chan_cfg uart2_dma_cfg_tx = {
-	.mode = STEDMA40_MODE_LOGICAL,
-	.dir = DMA_MEM_TO_DEV,
-	.dev_type = DB8500_DMA_DEV11_UART2,
-};
-#endif
-
-struct amba_pl011_data uart0_plat = {
-#ifdef CONFIG_STE_DMA40
-	.dma_filter = stedma40_filter,
-	.dma_rx_param = &uart0_dma_cfg_rx,
-	.dma_tx_param = &uart0_dma_cfg_tx,
-#endif
-};
-
-struct amba_pl011_data uart1_plat = {
-#ifdef CONFIG_STE_DMA40
-	.dma_filter = stedma40_filter,
-	.dma_rx_param = &uart1_dma_cfg_rx,
-	.dma_tx_param = &uart1_dma_cfg_tx,
-#endif
-};
-
-struct amba_pl011_data uart2_plat = {
-#ifdef CONFIG_STE_DMA40
-	.dma_filter = stedma40_filter,
-	.dma_rx_param = &uart2_dma_cfg_rx,
-	.dma_tx_param = &uart2_dma_cfg_tx,
-#endif
-};
-
-static void __init mop500_uart_init(struct device *parent)
-{
-	db8500_add_uart0(parent, &uart0_plat);
-	db8500_add_uart1(parent, &uart1_plat);
-	db8500_add_uart2(parent, &uart2_plat);
-}
-
 static void __init mop500_init_machine(void)
 {
 	struct device *parent = NULL;
@@ -155,8 +85,6 @@ static void __init mop500_init_machine(void)
 
 	parent = u8500_init_devices();
 
-	mop500_uart_init(parent);
-
 	/* This board has full regulator constraints */
 	regulator_has_full_constraints();
 }
@@ -170,8 +98,6 @@ static void __init snowball_init_machine(void)
 
 	parent = u8500_init_devices();
 
-	mop500_uart_init(parent);
-
 	/* This board has full regulator constraints */
 	regulator_has_full_constraints();
 }
@@ -184,8 +110,6 @@ static void __init hrefv60_init_machine(void)
 
 	parent = u8500_init_devices();
 
-	mop500_uart_init(parent);
-
 	/* This board has full regulator constraints */
 	regulator_has_full_constraints();
 }
diff --git a/arch/arm/mach-ux500/board-mop500.h b/arch/arm/mach-ux500/board-mop500.h
index 2cced8bcd8c6..cf6b3047d34c 100644
--- a/arch/arm/mach-ux500/board-mop500.h
+++ b/arch/arm/mach-ux500/board-mop500.h
@@ -87,9 +87,6 @@ extern struct msp_i2s_platform_data msp0_platform_data;
 extern struct msp_i2s_platform_data msp1_platform_data;
 extern struct msp_i2s_platform_data msp2_platform_data;
 extern struct msp_i2s_platform_data msp3_platform_data;
-extern struct amba_pl011_data uart0_plat;
-extern struct amba_pl011_data uart1_plat;
-extern struct amba_pl011_data uart2_plat;
 extern struct pl022_ssp_controller ssp0_plat;
 
 void __init mop500_u8500uib_init(void);
diff --git a/arch/arm/mach-ux500/devices-common.h b/arch/arm/mach-ux500/devices-common.h
index 15bf1ab22399..f3f7349eece1 100644
--- a/arch/arm/mach-ux500/devices-common.h
+++ b/arch/arm/mach-ux500/devices-common.h
@@ -11,15 +11,5 @@
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
 #include <linux/sys_soc.h>
-#include <linux/amba/bus.h>
-
-struct amba_pl011_data;
-
-static inline struct amba_device *
-dbx500_add_uart(struct device *parent, const char *name, resource_size_t base,
-		int irq, struct amba_pl011_data *pdata)
-{
-	return amba_ahb_device_add(parent, name, base, SZ_4K, irq, 0, pdata, 0);
-}
 
 #endif
diff --git a/arch/arm/mach-ux500/devices-db8500.h b/arch/arm/mach-ux500/devices-db8500.h
index e6ac6d23138c..fc4048f0432c 100644
--- a/arch/arm/mach-ux500/devices-db8500.h
+++ b/arch/arm/mach-ux500/devices-db8500.h
@@ -18,14 +18,4 @@ extern struct ab8500_platform_data ab8500_platdata;
 extern struct prcmu_pdata db8500_prcmu_pdata;
 extern struct platform_device db8500_prcmu_device;
 
-#define db8500_add_uart0(parent, pdata) \
-	dbx500_add_uart(parent, "uart0", U8500_UART0_BASE, \
-			IRQ_DB8500_UART0, pdata)
-#define db8500_add_uart1(parent, pdata) \
-	dbx500_add_uart(parent, "uart1", U8500_UART1_BASE, \
-			IRQ_DB8500_UART1, pdata)
-#define db8500_add_uart2(parent, pdata) \
-	dbx500_add_uart(parent, "uart2", U8500_UART2_BASE, \
-			IRQ_DB8500_UART2, pdata)
-
 #endif
-- 
cgit 


From 254a40783d353528fce527d1f512189255b4b40c Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Thu, 22 Aug 2013 15:52:30 +0100
Subject: ARM: ux500: Stop requesting the SoC device to play 'parent' role

There are no more devices which require left to register which require
a parent. This is part of the ux500 conversion over to Device Tree only
booting.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c | 12 ------------
 arch/arm/mach-ux500/cpu-db8500.c   |  8 --------
 2 files changed, 20 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index f8885c56abf2..8f6c1ea7b216 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -79,12 +79,8 @@ struct pl022_ssp_controller ssp0_plat = {
 
 static void __init mop500_init_machine(void)
 {
-	struct device *parent = NULL;
-
 	platform_device_register(&db8500_prcmu_device);
 
-	parent = u8500_init_devices();
-
 	/* This board has full regulator constraints */
 	regulator_has_full_constraints();
 }
@@ -92,24 +88,16 @@ static void __init mop500_init_machine(void)
 
 static void __init snowball_init_machine(void)
 {
-	struct device *parent = NULL;
-
 	platform_device_register(&db8500_prcmu_device);
 
-	parent = u8500_init_devices();
-
 	/* This board has full regulator constraints */
 	regulator_has_full_constraints();
 }
 
 static void __init hrefv60_init_machine(void)
 {
-	struct device *parent = NULL;
-
 	platform_device_register(&db8500_prcmu_device);
 
-	parent = u8500_init_devices();
-
 	/* This board has full regulator constraints */
 	regulator_has_full_constraints();
 }
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 89232dd99673..2e85c1e72535 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -135,14 +135,6 @@ static struct device * __init db8500_soc_device_init(void)
 	return ux500_soc_device_init(soc_id);
 }
 
-/*
- * This function is called from the board init
- */
-struct device * __init u8500_init_devices(void)
-{
-	return db8500_soc_device_init();
-}
-
 #ifdef CONFIG_MACH_UX500_DT
 static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
 	/* Requires call-back bindings. */
-- 
cgit 


From 791ffcdebf7a9553bfc46b39689e26531b1e1f02 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Fri, 23 Aug 2013 09:19:01 +0100
Subject: ARM: ux500: Purge DB8500 PRCMU registration when not booting with DT

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c   |  6 ------
 arch/arm/mach-ux500/devices-db8500.c | 36 ------------------------------------
 arch/arm/mach-ux500/devices-db8500.h |  1 -
 3 files changed, 43 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 8f6c1ea7b216..b37bcbc1c7b7 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -79,8 +79,6 @@ struct pl022_ssp_controller ssp0_plat = {
 
 static void __init mop500_init_machine(void)
 {
-	platform_device_register(&db8500_prcmu_device);
-
 	/* This board has full regulator constraints */
 	regulator_has_full_constraints();
 }
@@ -88,16 +86,12 @@ static void __init mop500_init_machine(void)
 
 static void __init snowball_init_machine(void)
 {
-	platform_device_register(&db8500_prcmu_device);
-
 	/* This board has full regulator constraints */
 	regulator_has_full_constraints();
 }
 
 static void __init hrefv60_init_machine(void)
 {
-	platform_device_register(&db8500_prcmu_device);
-
 	/* This board has full regulator constraints */
 	regulator_has_full_constraints();
 }
diff --git a/arch/arm/mach-ux500/devices-db8500.c b/arch/arm/mach-ux500/devices-db8500.c
index 1b2fabaee3ce..c59f89d058ff 100644
--- a/arch/arm/mach-ux500/devices-db8500.c
+++ b/arch/arm/mach-ux500/devices-db8500.c
@@ -26,39 +26,3 @@ struct prcmu_pdata db8500_prcmu_pdata = {
 	.version_offset	= DB8500_PRCMU_FW_VERSION_OFFSET,
 	.legacy_offset	= DB8500_PRCMU_LEGACY_OFFSET,
 };
-
-static struct resource db8500_prcmu_res[] = {
-	{
-		.name  = "prcmu",
-		.start = U8500_PRCMU_BASE,
-		.end   = U8500_PRCMU_BASE + SZ_8K - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	{
-		.name  = "prcmu-tcdm",
-		.start = U8500_PRCMU_TCDM_BASE,
-		.end   = U8500_PRCMU_TCDM_BASE + SZ_4K - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	{
-		.name  = "irq",
-		.start = IRQ_DB8500_PRCMU1,
-		.end   = IRQ_DB8500_PRCMU1,
-		.flags = IORESOURCE_IRQ,
-	},
-	{
-		.name  = "prcmu-tcpm",
-		.start = U8500_PRCMU_TCPM_BASE,
-		.end   = U8500_PRCMU_TCPM_BASE + SZ_32K - 1,
-		.flags = IORESOURCE_MEM,
-	},
-};
-
-struct platform_device db8500_prcmu_device = {
-	.name			= "db8500-prcmu",
-	.resource		= db8500_prcmu_res,
-	.num_resources		= ARRAY_SIZE(db8500_prcmu_res),
-	.dev = {
-		.platform_data = &db8500_prcmu_pdata,
-	},
-};
diff --git a/arch/arm/mach-ux500/devices-db8500.h b/arch/arm/mach-ux500/devices-db8500.h
index fc4048f0432c..6d592185e71c 100644
--- a/arch/arm/mach-ux500/devices-db8500.h
+++ b/arch/arm/mach-ux500/devices-db8500.h
@@ -16,6 +16,5 @@ struct platform_device;
 
 extern struct ab8500_platform_data ab8500_platdata;
 extern struct prcmu_pdata db8500_prcmu_pdata;
-extern struct platform_device db8500_prcmu_device;
 
 #endif
-- 
cgit 


From f368a0874b314f53d8cd2739731a66c961db6d48 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Fri, 23 Aug 2013 09:24:38 +0100
Subject: ARM: ux500: Don't register Synaptics RMI4 TS when booting with ATAGs

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500-u8500uib.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500-u8500uib.c b/arch/arm/mach-ux500/board-mop500-u8500uib.c
index 6f6553e19c00..43c9ff109d13 100644
--- a/arch/arm/mach-ux500/board-mop500-u8500uib.c
+++ b/arch/arm/mach-ux500/board-mop500-u8500uib.c
@@ -4,25 +4,11 @@
  * Board data for the U8500 UIB, also known as the New UIB
  * License terms: GNU General Public License (GPL), version 2
  */
-#include <linux/gpio.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/i2c.h>
-#include <linux/interrupt.h>
-
-#include "irqs.h"
 
 #include "board-mop500.h"
 
-static struct i2c_board_info __initdata mop500_i2c3_devices_u8500[] = {
-	{
-		I2C_BOARD_INFO("synaptics_rmi4_i2c", 0x4B),
-		.irq = NOMADIK_GPIO_TO_IRQ(84),
-	},
-};
-
 void __init mop500_u8500uib_init(void)
 {
-	mop500_uib_i2c_add(3, mop500_i2c3_devices_u8500,
-			ARRAY_SIZE(mop500_i2c3_devices_u8500));
 }
-- 
cgit 


From 6dd937e8f634dd8de67185d887643ab7f4ec15b9 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Fri, 23 Aug 2013 09:34:42 +0100
Subject: ARM: ux500: Delete U8500 UIB support when booting with ATAGs

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/Makefile                |  1 -
 arch/arm/mach-ux500/board-mop500-u8500uib.c | 14 --------------
 arch/arm/mach-ux500/board-mop500-uib.c      | 30 +----------------------------
 arch/arm/mach-ux500/board-mop500.h          |  1 -
 4 files changed, 1 insertion(+), 45 deletions(-)
 delete mode 100644 arch/arm/mach-ux500/board-mop500-u8500uib.c

diff --git a/arch/arm/mach-ux500/Makefile b/arch/arm/mach-ux500/Makefile
index 685f6153aa39..0d2a89394e7b 100644
--- a/arch/arm/mach-ux500/Makefile
+++ b/arch/arm/mach-ux500/Makefile
@@ -9,7 +9,6 @@ obj-$(CONFIG_UX500_SOC_DB8500)	+= cpu-db8500.o devices-db8500.o
 obj-$(CONFIG_MACH_MOP500)	+= board-mop500.o board-mop500-sdi.o \
 				board-mop500-regulators.o \
 				board-mop500-uib.o board-mop500-stuib.o \
-				board-mop500-u8500uib.o \
 				board-mop500-pins.o \
 				board-mop500-audio.o
 obj-$(CONFIG_SMP)		+= platsmp.o headsmp.o
diff --git a/arch/arm/mach-ux500/board-mop500-u8500uib.c b/arch/arm/mach-ux500/board-mop500-u8500uib.c
deleted file mode 100644
index 43c9ff109d13..000000000000
--- a/arch/arm/mach-ux500/board-mop500-u8500uib.c
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
- * Copyright (C) ST-Ericsson SA 2010
- *
- * Board data for the U8500 UIB, also known as the New UIB
- * License terms: GNU General Public License (GPL), version 2
- */
-#include <linux/kernel.h>
-#include <linux/init.h>
-
-#include "board-mop500.h"
-
-void __init mop500_u8500uib_init(void)
-{
-}
diff --git a/arch/arm/mach-ux500/board-mop500-uib.c b/arch/arm/mach-ux500/board-mop500-uib.c
index bdaa422da028..0e94f1dc7a6f 100644
--- a/arch/arm/mach-ux500/board-mop500-uib.c
+++ b/arch/arm/mach-ux500/board-mop500-uib.c
@@ -16,7 +16,6 @@
 
 enum mop500_uib {
 	STUIB,
-	U8500UIB,
 };
 
 struct uib {
@@ -31,11 +30,6 @@ static struct uib __initdata mop500_uibs[] = {
 		.option	= "stuib",
 		.init	= mop500_stuib_init,
 	},
-	[U8500UIB] = {
-		.name	= "U8500-UIB",
-		.option	= "u8500uib",
-		.init	= mop500_u8500uib_init,
-	},
 };
 
 static struct uib *mop500_uib;
@@ -93,14 +87,9 @@ static void __init __mop500_uib_init(struct uib *uib, const char *why)
 	uib->init();
 }
 
-/*
- * Detect the UIB attached based on the presence or absence of i2c devices.
- */
 int __init mop500_uib_init(void)
 {
 	struct uib *uib = mop500_uib;
-	struct i2c_adapter *i2c0;
-	int ret;
 
 	if (!cpu_is_u8500_family())
 		return -ENODEV;
@@ -110,24 +99,7 @@ int __init mop500_uib_init(void)
 		return 0;
 	}
 
-	i2c0 = i2c_get_adapter(0);
-	if (!i2c0) {
-		__mop500_uib_init(&mop500_uibs[STUIB],
-				"fallback, could not get i2c0");
-		return -ENODEV;
-	}
-
-	/* U8500-UIB has the TC35893 at 0x44 on I2C0, the ST-UIB doesn't. */
-	ret = i2c_smbus_xfer(i2c0, 0x44, 0, I2C_SMBUS_WRITE, 0,
-			I2C_SMBUS_QUICK, NULL);
-	i2c_put_adapter(i2c0);
-
-	if (ret == 0)
-		uib = &mop500_uibs[U8500UIB];
-	else
-		uib = &mop500_uibs[STUIB];
-
-	__mop500_uib_init(uib, "detected");
+	__mop500_uib_init(&mop500_uibs[STUIB], "detected");
 
 	return 0;
 }
diff --git a/arch/arm/mach-ux500/board-mop500.h b/arch/arm/mach-ux500/board-mop500.h
index cf6b3047d34c..223639b50441 100644
--- a/arch/arm/mach-ux500/board-mop500.h
+++ b/arch/arm/mach-ux500/board-mop500.h
@@ -89,7 +89,6 @@ extern struct msp_i2s_platform_data msp2_platform_data;
 extern struct msp_i2s_platform_data msp3_platform_data;
 extern struct pl022_ssp_controller ssp0_plat;
 
-void __init mop500_u8500uib_init(void);
 void __init mop500_stuib_init(void);
 void __init mop500_pinmaps_init(void);
 void __init snowball_pinmaps_init(void);
-- 
cgit 


From a4dbfab590e5a81f5209c469f19a50b577269493 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Fri, 23 Aug 2013 09:39:05 +0100
Subject: ARM: ux500: Don't register the STMPE/SKE when booting with ATAG
 support

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500-stuib.c | 62 --------------------------------
 1 file changed, 62 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500-stuib.c b/arch/arm/mach-ux500/board-mop500-stuib.c
index 7e1f294f0434..b57996b5fe68 100644
--- a/arch/arm/mach-ux500/board-mop500-stuib.c
+++ b/arch/arm/mach-ux500/board-mop500-stuib.c
@@ -6,73 +6,14 @@
 
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/mfd/stmpe.h>
 #include <linux/input/bu21013.h>
 #include <linux/gpio.h>
 #include <linux/interrupt.h>
 #include <linux/i2c.h>
-#include <linux/input/matrix_keypad.h>
 #include <asm/mach-types.h>
 
 #include "board-mop500.h"
 
-/* STMPE/SKE keypad use this key layout */
-static const unsigned int mop500_keymap[] = {
-	KEY(2, 5, KEY_END),
-	KEY(4, 1, KEY_POWER),
-	KEY(3, 5, KEY_VOLUMEDOWN),
-	KEY(1, 3, KEY_3),
-	KEY(5, 2, KEY_RIGHT),
-	KEY(5, 0, KEY_9),
-
-	KEY(0, 5, KEY_MENU),
-	KEY(7, 6, KEY_ENTER),
-	KEY(4, 5, KEY_0),
-	KEY(6, 7, KEY_2),
-	KEY(3, 4, KEY_UP),
-	KEY(3, 3, KEY_DOWN),
-
-	KEY(6, 4, KEY_SEND),
-	KEY(6, 2, KEY_BACK),
-	KEY(4, 2, KEY_VOLUMEUP),
-	KEY(5, 5, KEY_1),
-	KEY(4, 3, KEY_LEFT),
-	KEY(3, 2, KEY_7),
-};
-
-static const struct matrix_keymap_data mop500_keymap_data = {
-	.keymap		= mop500_keymap,
-	.keymap_size    = ARRAY_SIZE(mop500_keymap),
-};
-/*
- * STMPE1601
- */
-static struct stmpe_keypad_platform_data stmpe1601_keypad_data = {
-	.debounce_ms    = 64,
-	.scan_count     = 8,
-	.no_autorepeat  = true,
-	.keymap_data    = &mop500_keymap_data,
-};
-
-static struct stmpe_platform_data stmpe1601_data = {
-	.id		= 1,
-	.blocks		= STMPE_BLOCK_KEYPAD,
-	.irq_trigger    = IRQF_TRIGGER_FALLING,
-	.irq_base       = MOP500_STMPE1601_IRQ(0),
-	.keypad		= &stmpe1601_keypad_data,
-	.autosleep      = true,
-	.autosleep_timeout = 1024,
-};
-
-static struct i2c_board_info __initdata mop500_i2c0_devices_stuib[] = {
-	{
-		I2C_BOARD_INFO("stmpe1601", 0x40),
-		.irq = NOMADIK_GPIO_TO_IRQ(218),
-		.platform_data = &stmpe1601_data,
-		.flags = I2C_CLIENT_WAKE,
-	},
-};
-
 /*
  * BU21013 ROHM touchscreen interface on the STUIBs
  */
@@ -112,9 +53,6 @@ void __init mop500_stuib_init(void)
 	else
 		tsc_plat_device.cs_pin = GPIO_BU21013_CS;
 
-	mop500_uib_i2c_add(0, mop500_i2c0_devices_stuib,
-			ARRAY_SIZE(mop500_i2c0_devices_stuib));
-
 	mop500_uib_i2c_add(3, u8500_i2c3_devices_stuib,
 			ARRAY_SIZE(u8500_i2c3_devices_stuib));
 }
-- 
cgit 


From 2f0eebcbb4ae68bc8f4bf1d78bd23bbe817e58fd Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Fri, 23 Aug 2013 09:52:12 +0100
Subject: ARM: ux500: Remove BU21013 ROHM TS support when booting with only
 ATAGs

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500-stuib.c | 44 --------------------------------
 1 file changed, 44 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500-stuib.c b/arch/arm/mach-ux500/board-mop500-stuib.c
index b57996b5fe68..7fa30217cc01 100644
--- a/arch/arm/mach-ux500/board-mop500-stuib.c
+++ b/arch/arm/mach-ux500/board-mop500-stuib.c
@@ -6,53 +6,9 @@
 
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/input/bu21013.h>
-#include <linux/gpio.h>
-#include <linux/interrupt.h>
-#include <linux/i2c.h>
-#include <asm/mach-types.h>
 
 #include "board-mop500.h"
 
-/*
- * BU21013 ROHM touchscreen interface on the STUIBs
- */
-
-#define TOUCH_GPIO_PIN  84
-
-#define TOUCH_XMAX	384
-#define TOUCH_YMAX	704
-
-#define PRCMU_CLOCK_OCR		0x1CC
-#define TSC_EXT_CLOCK_9_6MHZ	0x840000
-
-static struct bu21013_platform_device tsc_plat_device = {
-	.touch_pin = TOUCH_GPIO_PIN,
-	.touch_x_max = TOUCH_XMAX,
-	.touch_y_max = TOUCH_YMAX,
-	.ext_clk = false,
-	.x_flip = false,
-	.y_flip = true,
-};
-
-static struct i2c_board_info __initdata u8500_i2c3_devices_stuib[] = {
-	{
-		I2C_BOARD_INFO("bu21013_tp", 0x5C),
-		.platform_data = &tsc_plat_device,
-	},
-	{
-		I2C_BOARD_INFO("bu21013_tp", 0x5D),
-		.platform_data = &tsc_plat_device,
-	},
-};
-
 void __init mop500_stuib_init(void)
 {
-	if (machine_is_hrefv60())
-		tsc_plat_device.cs_pin = HREFV60_TOUCH_RST_GPIO;
-	else
-		tsc_plat_device.cs_pin = GPIO_BU21013_CS;
-
-	mop500_uib_i2c_add(3, u8500_i2c3_devices_stuib,
-			ARRAY_SIZE(u8500_i2c3_devices_stuib));
 }
-- 
cgit 


From 7585382ad5ca26134fffc860da9bfc1947895eb3 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Fri, 23 Aug 2013 09:56:47 +0100
Subject: ARM: ux500: Take out STUIB support when not booting with Device Tree

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/Makefile             |  2 +-
 arch/arm/mach-ux500/board-mop500-stuib.c | 14 --------------
 arch/arm/mach-ux500/board-mop500-uib.c   |  8 --------
 arch/arm/mach-ux500/board-mop500.h       |  1 -
 4 files changed, 1 insertion(+), 24 deletions(-)
 delete mode 100644 arch/arm/mach-ux500/board-mop500-stuib.c

diff --git a/arch/arm/mach-ux500/Makefile b/arch/arm/mach-ux500/Makefile
index 0d2a89394e7b..4f55eccae704 100644
--- a/arch/arm/mach-ux500/Makefile
+++ b/arch/arm/mach-ux500/Makefile
@@ -8,7 +8,7 @@ obj-$(CONFIG_CACHE_L2X0)	+= cache-l2x0.o
 obj-$(CONFIG_UX500_SOC_DB8500)	+= cpu-db8500.o devices-db8500.o
 obj-$(CONFIG_MACH_MOP500)	+= board-mop500.o board-mop500-sdi.o \
 				board-mop500-regulators.o \
-				board-mop500-uib.o board-mop500-stuib.o \
+				board-mop500-uib.o \
 				board-mop500-pins.o \
 				board-mop500-audio.o
 obj-$(CONFIG_SMP)		+= platsmp.o headsmp.o
diff --git a/arch/arm/mach-ux500/board-mop500-stuib.c b/arch/arm/mach-ux500/board-mop500-stuib.c
deleted file mode 100644
index 7fa30217cc01..000000000000
--- a/arch/arm/mach-ux500/board-mop500-stuib.c
+++ /dev/null
@@ -1,14 +0,0 @@
-/*
- * Copyright (C) ST-Ericsson SA 2010
- *
- * License terms: GNU General Public License (GPL), version 2
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-
-#include "board-mop500.h"
-
-void __init mop500_stuib_init(void)
-{
-}
diff --git a/arch/arm/mach-ux500/board-mop500-uib.c b/arch/arm/mach-ux500/board-mop500-uib.c
index 0e94f1dc7a6f..2742eeccbcd0 100644
--- a/arch/arm/mach-ux500/board-mop500-uib.c
+++ b/arch/arm/mach-ux500/board-mop500-uib.c
@@ -15,7 +15,6 @@
 #include "id.h"
 
 enum mop500_uib {
-	STUIB,
 };
 
 struct uib {
@@ -25,11 +24,6 @@ struct uib {
 };
 
 static struct uib __initdata mop500_uibs[] = {
-	[STUIB] = {
-		.name	= "ST-UIB",
-		.option	= "stuib",
-		.init	= mop500_stuib_init,
-	},
 };
 
 static struct uib *mop500_uib;
@@ -99,7 +93,5 @@ int __init mop500_uib_init(void)
 		return 0;
 	}
 
-	__mop500_uib_init(&mop500_uibs[STUIB], "detected");
-
 	return 0;
 }
diff --git a/arch/arm/mach-ux500/board-mop500.h b/arch/arm/mach-ux500/board-mop500.h
index 223639b50441..2fb89e2d5faa 100644
--- a/arch/arm/mach-ux500/board-mop500.h
+++ b/arch/arm/mach-ux500/board-mop500.h
@@ -89,7 +89,6 @@ extern struct msp_i2s_platform_data msp2_platform_data;
 extern struct msp_i2s_platform_data msp3_platform_data;
 extern struct pl022_ssp_controller ssp0_plat;
 
-void __init mop500_stuib_init(void);
 void __init mop500_pinmaps_init(void);
 void __init snowball_pinmaps_init(void);
 void __init hrefv60_pinmaps_init(void);
-- 
cgit 


From 3ea3e63938ca3adbdb02db99bce89a71b802ebab Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 14:53:06 +0100
Subject: ARM: ux500: Purge UIB framework when booting with ATAGs

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/Makefile           |  1 -
 arch/arm/mach-ux500/board-mop500-uib.c | 97 ----------------------------------
 arch/arm/mach-ux500/board-mop500.c     |  8 +--
 arch/arm/mach-ux500/board-mop500.h     |  3 --
 arch/arm/mach-ux500/cpu.c              |  5 --
 arch/arm/mach-ux500/setup.h            |  1 -
 6 files changed, 4 insertions(+), 111 deletions(-)
 delete mode 100644 arch/arm/mach-ux500/board-mop500-uib.c

diff --git a/arch/arm/mach-ux500/Makefile b/arch/arm/mach-ux500/Makefile
index 4f55eccae704..e4ed82036302 100644
--- a/arch/arm/mach-ux500/Makefile
+++ b/arch/arm/mach-ux500/Makefile
@@ -8,7 +8,6 @@ obj-$(CONFIG_CACHE_L2X0)	+= cache-l2x0.o
 obj-$(CONFIG_UX500_SOC_DB8500)	+= cpu-db8500.o devices-db8500.o
 obj-$(CONFIG_MACH_MOP500)	+= board-mop500.o board-mop500-sdi.o \
 				board-mop500-regulators.o \
-				board-mop500-uib.o \
 				board-mop500-pins.o \
 				board-mop500-audio.o
 obj-$(CONFIG_SMP)		+= platsmp.o headsmp.o
diff --git a/arch/arm/mach-ux500/board-mop500-uib.c b/arch/arm/mach-ux500/board-mop500-uib.c
deleted file mode 100644
index 2742eeccbcd0..000000000000
--- a/arch/arm/mach-ux500/board-mop500-uib.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Copyright (C) ST-Ericsson SA 2010
- *
- * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
- * License terms: GNU General Public License (GPL), version 2
- */
-
-#define pr_fmt(fmt)	"mop500-uib: " fmt
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/i2c.h>
-
-#include "board-mop500.h"
-#include "id.h"
-
-enum mop500_uib {
-};
-
-struct uib {
-	const char *name;
-	const char *option;
-	void (*init)(void);
-};
-
-static struct uib __initdata mop500_uibs[] = {
-};
-
-static struct uib *mop500_uib;
-
-static int __init mop500_uib_setup(char *str)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(mop500_uibs); i++) {
-		struct uib *uib = &mop500_uibs[i];
-
-		if (!strcmp(str, uib->option)) {
-			mop500_uib = uib;
-			break;
-		}
-	}
-
-	if (i == ARRAY_SIZE(mop500_uibs))
-		pr_err("invalid uib= option (%s)\n", str);
-
-	return 1;
-}
-__setup("uib=", mop500_uib_setup);
-
-/*
- * The UIBs are detected after the I2C host controllers are registered, so
- * i2c_register_board_info() can't be used.
- */
-void mop500_uib_i2c_add(int busnum, struct i2c_board_info *info,
-		unsigned n)
-{
-	struct i2c_adapter *adap;
-	struct i2c_client *client;
-	int i;
-
-	adap = i2c_get_adapter(busnum);
-	if (!adap) {
-		pr_err("failed to get adapter i2c%d\n", busnum);
-		return;
-	}
-
-	for (i = 0; i < n; i++) {
-		client = i2c_new_device(adap, &info[i]);
-		if (!client)
-			pr_err("failed to register %s to i2c%d\n",
-					info[i].type, busnum);
-	}
-
-	i2c_put_adapter(adap);
-}
-
-static void __init __mop500_uib_init(struct uib *uib, const char *why)
-{
-	pr_info("%s (%s)\n", uib->name, why);
-	uib->init();
-}
-
-int __init mop500_uib_init(void)
-{
-	struct uib *uib = mop500_uib;
-
-	if (!cpu_is_u8500_family())
-		return -ENODEV;
-
-	if (uib) {
-		__mop500_uib_init(uib, "from uib= boot argument");
-		return 0;
-	}
-
-	return 0;
-}
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index b37bcbc1c7b7..d034e62e226f 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -105,8 +105,8 @@ MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
 	/* we re-use nomadik timer here */
 	.init_time	= ux500_timer_init,
 	.init_machine	= mop500_init_machine,
-	.init_late	= ux500_init_late,
 	.restart        = ux500_restart,
+	.init_late	= NULL,
 MACHINE_END
 
 MACHINE_START(U8520, "ST-Ericsson U8520 Platform HREFP520")
@@ -115,8 +115,8 @@ MACHINE_START(U8520, "ST-Ericsson U8520 Platform HREFP520")
 	.init_irq	= ux500_init_irq,
 	.init_time	= ux500_timer_init,
 	.init_machine	= mop500_init_machine,
-	.init_late	= ux500_init_late,
 	.restart        = ux500_restart,
+	.init_late	= NULL,
 MACHINE_END
 
 MACHINE_START(HREFV60, "ST-Ericsson U8500 Platform HREFv60+")
@@ -126,8 +126,8 @@ MACHINE_START(HREFV60, "ST-Ericsson U8500 Platform HREFv60+")
 	.init_irq	= ux500_init_irq,
 	.init_time	= ux500_timer_init,
 	.init_machine	= hrefv60_init_machine,
-	.init_late	= ux500_init_late,
 	.restart        = ux500_restart,
+	.init_late	= NULL,
 MACHINE_END
 
 MACHINE_START(SNOWBALL, "Calao Systems Snowball platform")
@@ -138,6 +138,6 @@ MACHINE_START(SNOWBALL, "Calao Systems Snowball platform")
 	/* we re-use nomadik timer here */
 	.init_time	= ux500_timer_init,
 	.init_machine	= snowball_init_machine,
-	.init_late	= NULL,
 	.restart        = ux500_restart,
+	.init_late	= NULL,
 MACHINE_END
diff --git a/arch/arm/mach-ux500/board-mop500.h b/arch/arm/mach-ux500/board-mop500.h
index 2fb89e2d5faa..511d6febbe99 100644
--- a/arch/arm/mach-ux500/board-mop500.h
+++ b/arch/arm/mach-ux500/board-mop500.h
@@ -93,7 +93,4 @@ void __init mop500_pinmaps_init(void);
 void __init snowball_pinmaps_init(void);
 void __init hrefv60_pinmaps_init(void);
 
-int __init mop500_uib_init(void);
-void mop500_uib_i2c_add(int busnum, struct i2c_board_info *info,
-		unsigned n);
 #endif
diff --git a/arch/arm/mach-ux500/cpu.c b/arch/arm/mach-ux500/cpu.c
index 0e65822394fc..f84d4397896b 100644
--- a/arch/arm/mach-ux500/cpu.c
+++ b/arch/arm/mach-ux500/cpu.c
@@ -104,11 +104,6 @@ void __init ux500_init_irq(void)
 	}
 }
 
-void __init ux500_init_late(void)
-{
-	mop500_uib_init();
-}
-
 static const char * __init ux500_get_machine(void)
 {
 	return kasprintf(GFP_KERNEL, "DB%4x", dbx500_partnumber());
diff --git a/arch/arm/mach-ux500/setup.h b/arch/arm/mach-ux500/setup.h
index 656324aad18e..bdb356498a74 100644
--- a/arch/arm/mach-ux500/setup.h
+++ b/arch/arm/mach-ux500/setup.h
@@ -24,7 +24,6 @@ extern void __init u8500_map_io(void);
 extern struct device * __init u8500_init_devices(void);
 
 extern void __init ux500_init_irq(void);
-extern void __init ux500_init_late(void);
 
 extern struct device *ux500_soc_device_init(const char *soc_id);
 
-- 
cgit 


From 90f6075ab87fea1c020cf0886a7189f0fc58869d Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 14:53:46 +0100
Subject: ARM: ux500: Remove ATAG booting support for MOP500

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index d034e62e226f..1273eca861c8 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -96,19 +96,6 @@ static void __init hrefv60_init_machine(void)
 	regulator_has_full_constraints();
 }
 
-MACHINE_START(U8500, "ST-Ericsson MOP500 platform")
-	/* Maintainer: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com> */
-	.atag_offset	= 0x100,
-	.smp		= smp_ops(ux500_smp_ops),
-	.map_io		= u8500_map_io,
-	.init_irq	= ux500_init_irq,
-	/* we re-use nomadik timer here */
-	.init_time	= ux500_timer_init,
-	.init_machine	= mop500_init_machine,
-	.restart        = ux500_restart,
-	.init_late	= NULL,
-MACHINE_END
-
 MACHINE_START(U8520, "ST-Ericsson U8520 Platform HREFP520")
 	.atag_offset	= 0x100,
 	.map_io		= u8500_map_io,
-- 
cgit 


From 7b2451183a70cc487c2d30abfd441cadb580131e Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 14:54:19 +0100
Subject: ARM: ux500: Remove ATAG booting support for U8520

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c | 17 -----------------
 1 file changed, 17 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 1273eca861c8..0b56d4f0f45e 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -77,13 +77,6 @@ struct pl022_ssp_controller ssp0_plat = {
 	.num_chipselect = 5,
 };
 
-static void __init mop500_init_machine(void)
-{
-	/* This board has full regulator constraints */
-	regulator_has_full_constraints();
-}
-
-
 static void __init snowball_init_machine(void)
 {
 	/* This board has full regulator constraints */
@@ -96,16 +89,6 @@ static void __init hrefv60_init_machine(void)
 	regulator_has_full_constraints();
 }
 
-MACHINE_START(U8520, "ST-Ericsson U8520 Platform HREFP520")
-	.atag_offset	= 0x100,
-	.map_io		= u8500_map_io,
-	.init_irq	= ux500_init_irq,
-	.init_time	= ux500_timer_init,
-	.init_machine	= mop500_init_machine,
-	.restart        = ux500_restart,
-	.init_late	= NULL,
-MACHINE_END
-
 MACHINE_START(HREFV60, "ST-Ericsson U8500 Platform HREFv60+")
 	.atag_offset	= 0x100,
 	.smp		= smp_ops(ux500_smp_ops),
-- 
cgit 


From 575d11aad0421797afc37b94a1040aba70c88d05 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 14:54:47 +0100
Subject: ARM: ux500: Remove ATAG booting support for HREF

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c | 17 -----------------
 1 file changed, 17 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 0b56d4f0f45e..97f5e29a08c5 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -83,23 +83,6 @@ static void __init snowball_init_machine(void)
 	regulator_has_full_constraints();
 }
 
-static void __init hrefv60_init_machine(void)
-{
-	/* This board has full regulator constraints */
-	regulator_has_full_constraints();
-}
-
-MACHINE_START(HREFV60, "ST-Ericsson U8500 Platform HREFv60+")
-	.atag_offset	= 0x100,
-	.smp		= smp_ops(ux500_smp_ops),
-	.map_io		= u8500_map_io,
-	.init_irq	= ux500_init_irq,
-	.init_time	= ux500_timer_init,
-	.init_machine	= hrefv60_init_machine,
-	.restart        = ux500_restart,
-	.init_late	= NULL,
-MACHINE_END
-
 MACHINE_START(SNOWBALL, "Calao Systems Snowball platform")
 	.atag_offset	= 0x100,
 	.smp		= smp_ops(ux500_smp_ops),
-- 
cgit 


From 7278248588c907b798a78bb61198d3204742b4e2 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 14:55:18 +0100
Subject: ARM: ux500: Remove ATAG booting support for Snowball

It's time to remove all ATAG support from ux500 and rely solely on
Device Tree booting. This patch is part of that endeavour.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/board-mop500.c | 18 ------------------
 1 file changed, 18 deletions(-)

diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index 97f5e29a08c5..514d40b625a4 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -76,21 +76,3 @@ struct pl022_ssp_controller ssp0_plat = {
 	 */
 	.num_chipselect = 5,
 };
-
-static void __init snowball_init_machine(void)
-{
-	/* This board has full regulator constraints */
-	regulator_has_full_constraints();
-}
-
-MACHINE_START(SNOWBALL, "Calao Systems Snowball platform")
-	.atag_offset	= 0x100,
-	.smp		= smp_ops(ux500_smp_ops),
-	.map_io		= u8500_map_io,
-	.init_irq	= ux500_init_irq,
-	/* we re-use nomadik timer here */
-	.init_time	= ux500_timer_init,
-	.init_machine	= snowball_init_machine,
-	.restart        = ux500_restart,
-	.init_late	= NULL,
-MACHINE_END
-- 
cgit 


From d460d28bfb516afe44a85a4738c459f18de582ce Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 16:05:04 +0100
Subject: ARM: ux500: Fix trivial white-space error in the DBX500 DTSI file

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index c417cb8a24ab..23810f233774 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -888,7 +888,7 @@
 		cpufreq-cooling {
 			compatible = "stericsson,db8500-cpufreq-cooling";
 			status = "disabled";
-		 };
+		};
 
 		vmmci: regulator-gpio {
 			compatible = "regulator-gpio";
-- 
cgit 


From d2f898cec8c2971b49fd872551924e902d2f627f Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 16:05:52 +0100
Subject: ARM: ux500: Provide a clock lookup for the Crypto driver

The common clock framework will use the 'clock' property provided to do
a clock lookup when Device Tree is enabled.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 23810f233774..c4000179794e 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -913,6 +913,7 @@
 			interrupts = <0 15 IRQ_TYPE_LEVEL_HIGH>;
 
 			v-ape-supply = <&db8500_vape_reg>;
+			clocks = <&prcc_pclk 6 1>;
 		};
 
 		hash@a03c2000 {
-- 
cgit 


From 024cfe880b4eafe6dfb81380ae39dc0ad2b48180 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 16:07:27 +0100
Subject: ARM: ux500: Provide a clock lookup for the Hash driver

The common clock framework will use the 'clock' property provided to do
a clock lookup when Device Tree is enabled.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index c4000179794e..8c8af1502054 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -921,6 +921,7 @@
 			reg = <0xa03c2000 0x1000>;
 
 			v-ape-supply = <&db8500_vape_reg>;
+			clocks = <&prcc_pclk 6 2>;
 		};
 	};
 };
-- 
cgit 


From 985856167d4b5c5cb5c326bd52cf17444658ae9c Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 16:07:44 +0100
Subject: ARM: ux500: Provide a Device Tree node for CPUFreq in the DBx500

This is required to fetch the ARMSS clock when booting with DT.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 8c8af1502054..2ef30c1c1997 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -300,6 +300,13 @@
 				reg = <0x80157450 0xC>;
 			};
 
+			cpufreq {
+				compatible = "stericsson,cpufreq-ux500";
+				clocks = <&prcmu_clk PRCMU_ARMSS>;
+				clock-names = "armss";
+				status = "disabled";
+			};
+
 			thermal@801573c0 {
 				compatible = "stericsson,db8500-thermal";
 				reg = <0x801573c0 0x40>;
-- 
cgit 


From 6cb7ea99fd83c9cd23c3f3dc75d987913f572e9b Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 16:03:07 +0100
Subject: ARM: ux500: Enable CPUFreq on Snowball

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-snowball.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/ste-snowball.dts b/arch/arm/boot/dts/ste-snowball.dts
index 3abec3205f13..f0b39f835914 100644
--- a/arch/arm/boot/dts/ste-snowball.dts
+++ b/arch/arm/boot/dts/ste-snowball.dts
@@ -171,6 +171,10 @@
 		};
 
 		prcmu@80157000 {
+			cpufreq {
+				status = "okay";
+			};
+
 			thermal@801573c0 {
 				num-trips = <4>;
 
-- 
cgit 


From 257015a20c92a41e302e4b2fc1110adba7626747 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 18 Sep 2013 16:09:38 +0100
Subject: clk: ux500: Provide a look-up for the ARMSS clock

The ARMSS clock is used by the newly DT enabled CPUFreq driver.

Cc: Mike Turquette <mturquette@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/clk/ux500/u8500_of_clk.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/clk/ux500/u8500_of_clk.c b/drivers/clk/ux500/u8500_of_clk.c
index 0769db85e772..b768b507c95c 100644
--- a/drivers/clk/ux500/u8500_of_clk.c
+++ b/drivers/clk/ux500/u8500_of_clk.c
@@ -233,6 +233,7 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
 
 	clk = clk_reg_prcmu_scalable_rate("armss", NULL,
 				PRCMU_ARMSS, 0, CLK_IS_ROOT|CLK_IGNORE_UNUSED);
+	prcmu_clk[PRCMU_ARMSS] = clk;
 
 	twd_clk = clk_register_fixed_factor(NULL, "smp_twd", "armss",
 				CLK_IGNORE_UNUSED, 1, 2);
-- 
cgit 


From c44c8e9d96b9aa8624409d6098f16dabc4afc6c2 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Thu, 26 Sep 2013 11:24:16 +0200
Subject: ARM: ux500: delete devices-common remnants

commit f1ff5b2549990b5de080b52e3313cbb30c218853
"ARM: ux500: Stop enabling GPIOs when not booting with Device Tree"
deleted devices-common.c, but did not delete the build
rule from Makefile (most likely due to compiling in
a dirty tree where the object file still existed so
linking would complete anyway).

Delete the makerule, the header file associated
with this file and the remaining reference to the header.

Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/Makefile         |  3 +--
 arch/arm/mach-ux500/devices-common.h | 15 ---------------
 arch/arm/mach-ux500/devices-db8500.h |  1 -
 3 files changed, 1 insertion(+), 18 deletions(-)
 delete mode 100644 arch/arm/mach-ux500/devices-common.h

diff --git a/arch/arm/mach-ux500/Makefile b/arch/arm/mach-ux500/Makefile
index e4ed82036302..616b96e86ad4 100644
--- a/arch/arm/mach-ux500/Makefile
+++ b/arch/arm/mach-ux500/Makefile
@@ -2,8 +2,7 @@
 # Makefile for the linux kernel, U8500 machine.
 #
 
-obj-y				:= cpu.o devices.o devices-common.o \
-				   id.o timer.o pm.o
+obj-y				:= cpu.o devices.o id.o timer.o pm.o
 obj-$(CONFIG_CACHE_L2X0)	+= cache-l2x0.o
 obj-$(CONFIG_UX500_SOC_DB8500)	+= cpu-db8500.o devices-db8500.o
 obj-$(CONFIG_MACH_MOP500)	+= board-mop500.o board-mop500-sdi.o \
diff --git a/arch/arm/mach-ux500/devices-common.h b/arch/arm/mach-ux500/devices-common.h
deleted file mode 100644
index f3f7349eece1..000000000000
--- a/arch/arm/mach-ux500/devices-common.h
+++ /dev/null
@@ -1,15 +0,0 @@
-/*
- * Copyright (C) ST-Ericsson SA 2010
- *
- * Author: Rabin Vincent <rabin.vincent@stericsson.com> for ST-Ericsson
- * License terms: GNU General Public License (GPL), version 2.
- */
-
-#ifndef __DEVICES_COMMON_H
-#define __DEVICES_COMMON_H
-
-#include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
-#include <linux/sys_soc.h>
-
-#endif
diff --git a/arch/arm/mach-ux500/devices-db8500.h b/arch/arm/mach-ux500/devices-db8500.h
index 6d592185e71c..b8ffc9979bb2 100644
--- a/arch/arm/mach-ux500/devices-db8500.h
+++ b/arch/arm/mach-ux500/devices-db8500.h
@@ -10,7 +10,6 @@
 
 #include "irqs.h"
 #include "db8500-regs.h"
-#include "devices-common.h"
 
 struct platform_device;
 
-- 
cgit 


From 224b93c5b12a8221e3718101ca730f3d4da6286f Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 19 Sep 2013 18:53:13 -0700
Subject: framebuffer: arkfb: Fix framebugger typo

s/framebugger/framebuffer/

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/arkfb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/arkfb.c b/drivers/video/arkfb.c
index ff6e304b225f..15dd5423d64a 100644
--- a/drivers/video/arkfb.c
+++ b/drivers/video/arkfb.c
@@ -1048,7 +1048,7 @@ static int ark_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 
 	rc = register_framebuffer(info);
 	if (rc < 0) {
-		dev_err(info->device, "cannot register framebugger\n");
+		dev_err(info->device, "cannot register framebuffer\n");
 		goto err_reg_fb;
 	}
 
-- 
cgit 


From 83cbe35b874621a23ca468621c0d833b76a1b8de Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 25 Sep 2013 19:22:54 +0100
Subject: ASoC: sn95031: Convert to regmap

This moves us towards being able to remove the duplicated register I/O
functionality in ASoC.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/sn95031.c | 35 ++++++++++++++++++++---------------
 1 file changed, 20 insertions(+), 15 deletions(-)

diff --git a/sound/soc/codecs/sn95031.c b/sound/soc/codecs/sn95031.c
index dba26e63844e..13045f2af4d3 100644
--- a/sound/soc/codecs/sn95031.c
+++ b/sound/soc/codecs/sn95031.c
@@ -164,30 +164,28 @@ static unsigned int sn95031_get_mic_bias(struct snd_soc_codec *codec)
 }
 /*end - adc helper functions */
 
-static inline unsigned int sn95031_read(struct snd_soc_codec *codec,
-			unsigned int reg)
+static int sn95031_read(void *ctx, unsigned int reg, unsigned int *val)
 {
 	u8 value = 0;
 	int ret;
 
 	ret = intel_scu_ipc_ioread8(reg, &value);
-	if (ret)
-		pr_err("read of %x failed, err %d\n", reg, ret);
-	return value;
+	if (ret == 0)
+		*val = value;
 
+	return ret;
 }
 
-static inline int sn95031_write(struct snd_soc_codec *codec,
-			unsigned int reg, unsigned int value)
+static int sn95031_write(void *ctx, unsigned int reg, unsigned int value)
 {
-	int ret;
-
-	ret = intel_scu_ipc_iowrite8(reg, value);
-	if (ret)
-		pr_err("write of %x failed, err %d\n", reg, ret);
-	return ret;
+	return intel_scu_ipc_iowrite8(reg, value);
 }
 
+static const struct regmap_config sn95031_regmap = {
+	.reg_read = sn95031_read,
+	.reg_write = sn95031_write,
+};
+
 static int sn95031_set_vaud_bias(struct snd_soc_codec *codec,
 		enum snd_soc_bias_level level)
 {
@@ -827,6 +825,8 @@ static int sn95031_codec_probe(struct snd_soc_codec *codec)
 {
 	pr_debug("codec_probe called\n");
 
+	snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP);
+
 	/* PCM interface config
 	 * This sets the pcm rx slot conguration to max 6 slots
 	 * for max 4 dais (2 stereo and 2 mono)
@@ -886,8 +886,6 @@ static int sn95031_codec_remove(struct snd_soc_codec *codec)
 static struct snd_soc_codec_driver sn95031_codec = {
 	.probe		= sn95031_codec_probe,
 	.remove		= sn95031_codec_remove,
-	.read		= sn95031_read,
-	.write		= sn95031_write,
 	.set_bias_level	= sn95031_set_vaud_bias,
 	.idle_bias_off	= true,
 	.dapm_widgets	= sn95031_dapm_widgets,
@@ -898,7 +896,14 @@ static struct snd_soc_codec_driver sn95031_codec = {
 
 static int sn95031_device_probe(struct platform_device *pdev)
 {
+	struct regmap *regmap;
+
 	pr_debug("codec device probe called for %s\n", dev_name(&pdev->dev));
+
+	regmap = devm_regmap_init(&pdev->dev, NULL, NULL, &sn95031_regmap);
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
 	return snd_soc_register_codec(&pdev->dev, &sn95031_codec,
 			sn95031_dais, ARRAY_SIZE(sn95031_dais));
 }
-- 
cgit 


From 752b776435cb35da27a0bbec8deecc33b3461288 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 25 Sep 2013 11:36:26 +0100
Subject: ASoC: tlv320aic32x4: Move GPIO acquisition to I2C probe

This is more idiomatic and interacts better with deferred probe.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/tlv320aic32x4.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic32x4.c b/sound/soc/codecs/tlv320aic32x4.c
index 2ed57d4aa445..cf70bf86c344 100644
--- a/sound/soc/codecs/tlv320aic32x4.c
+++ b/sound/soc/codecs/tlv320aic32x4.c
@@ -617,16 +617,11 @@ static int aic32x4_probe(struct snd_soc_codec *codec)
 {
 	struct aic32x4_priv *aic32x4 = snd_soc_codec_get_drvdata(codec);
 	u32 tmp_reg;
-	int ret;
 
 	codec->hw_write = (hw_write_t) i2c_master_send;
 	codec->control_data = aic32x4->control_data;
 
 	if (aic32x4->rstn_gpio >= 0) {
-		ret = devm_gpio_request_one(codec->dev, aic32x4->rstn_gpio,
-				GPIOF_OUT_INIT_LOW, "tlv320aic32x4 rstn");
-		if (ret != 0)
-			return ret;
 		ndelay(10);
 		gpio_set_value(aic32x4->rstn_gpio, 1);
 	}
@@ -735,6 +730,13 @@ static int aic32x4_i2c_probe(struct i2c_client *i2c,
 		aic32x4->rstn_gpio = -1;
 	}
 
+	if (aic32x4->rstn_gpio >= 0) {
+		ret = devm_gpio_request_one(&i2c->dev, aic32x4->rstn_gpio,
+				GPIOF_OUT_INIT_LOW, "tlv320aic32x4 rstn");
+		if (ret != 0)
+			return ret;
+	}
+
 	ret = snd_soc_register_codec(&i2c->dev,
 			&soc_codec_dev_aic32x4, &aic32x4_dai, 1);
 	return ret;
-- 
cgit 


From 4d208ca429ad424595fd08c0cca323605ebfc38b Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 25 Sep 2013 11:37:53 +0100
Subject: ASoC: tlv320aic32x4: Convert to direct regmap API usage

This moves us towards being able to remove the duplicate register I/O
functionality in ASoC and saves some code.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/tlv320aic32x4.c | 89 +++++++++++-----------------------------
 1 file changed, 23 insertions(+), 66 deletions(-)

diff --git a/sound/soc/codecs/tlv320aic32x4.c b/sound/soc/codecs/tlv320aic32x4.c
index cf70bf86c344..18cdcca9014c 100644
--- a/sound/soc/codecs/tlv320aic32x4.c
+++ b/sound/soc/codecs/tlv320aic32x4.c
@@ -60,9 +60,8 @@ struct aic32x4_rate_divs {
 };
 
 struct aic32x4_priv {
+	struct regmap *regmap;
 	u32 sysclk;
-	u8 page_no;
-	void *control_data;
 	u32 power_cfg;
 	u32 micpga_routing;
 	bool swapdacs;
@@ -262,67 +261,25 @@ static const struct snd_soc_dapm_route aic32x4_dapm_routes[] = {
 	{"Right ADC", NULL, "Right Input Mixer"},
 };
 
-static inline int aic32x4_change_page(struct snd_soc_codec *codec,
-					unsigned int new_page)
-{
-	struct aic32x4_priv *aic32x4 = snd_soc_codec_get_drvdata(codec);
-	u8 data[2];
-	int ret;
-
-	data[0] = 0x00;
-	data[1] = new_page & 0xff;
-
-	ret = codec->hw_write(codec->control_data, data, 2);
-	if (ret == 2) {
-		aic32x4->page_no = new_page;
-		return 0;
-	} else {
-		return ret;
-	}
-}
-
-static int aic32x4_write(struct snd_soc_codec *codec, unsigned int reg,
-				unsigned int val)
-{
-	struct aic32x4_priv *aic32x4 = snd_soc_codec_get_drvdata(codec);
-	unsigned int page = reg / 128;
-	unsigned int fixed_reg = reg % 128;
-	u8 data[2];
-	int ret;
-
-	/* A write to AIC32X4_PSEL is really a non-explicit page change */
-	if (reg == AIC32X4_PSEL)
-		return aic32x4_change_page(codec, val);
-
-	if (aic32x4->page_no != page) {
-		ret = aic32x4_change_page(codec, page);
-		if (ret != 0)
-			return ret;
-	}
+static const struct regmap_range_cfg aic32x4_regmap_pages[] = {
+	{
+		.selector_reg = 0,
+		.selector_mask  = 0xff,
+		.window_start = 0,
+		.window_len = 128,
+		.range_min = AIC32X4_PAGE1,
+		.range_max = AIC32X4_PAGE1 + 127,
+	},
+};
 
-	data[0] = fixed_reg & 0xff;
-	data[1] = val & 0xff;
+static const struct regmap_config aic32x4_regmap = {
+	.reg_bits = 8,
+	.val_bits = 8,
 
-	if (codec->hw_write(codec->control_data, data, 2) == 2)
-		return 0;
-	else
-		return -EIO;
-}
-
-static unsigned int aic32x4_read(struct snd_soc_codec *codec, unsigned int reg)
-{
-	struct aic32x4_priv *aic32x4 = snd_soc_codec_get_drvdata(codec);
-	unsigned int page = reg / 128;
-	unsigned int fixed_reg = reg % 128;
-	int ret;
-
-	if (aic32x4->page_no != page) {
-		ret = aic32x4_change_page(codec, page);
-		if (ret != 0)
-			return ret;
-	}
-	return i2c_smbus_read_byte_data(codec->control_data, fixed_reg & 0xff);
-}
+	.max_register = AIC32X4_RMICPGAVOL,
+	.ranges = aic32x4_regmap_pages,
+	.num_ranges = ARRAY_SIZE(aic32x4_regmap_pages),
+};
 
 static inline int aic32x4_get_divs(int mclk, int rate)
 {
@@ -618,8 +575,7 @@ static int aic32x4_probe(struct snd_soc_codec *codec)
 	struct aic32x4_priv *aic32x4 = snd_soc_codec_get_drvdata(codec);
 	u32 tmp_reg;
 
-	codec->hw_write = (hw_write_t) i2c_master_send;
-	codec->control_data = aic32x4->control_data;
+	snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_REGMAP);
 
 	if (aic32x4->rstn_gpio >= 0) {
 		ndelay(10);
@@ -687,8 +643,6 @@ static int aic32x4_remove(struct snd_soc_codec *codec)
 }
 
 static struct snd_soc_codec_driver soc_codec_dev_aic32x4 = {
-	.read = aic32x4_read,
-	.write = aic32x4_write,
 	.probe = aic32x4_probe,
 	.remove = aic32x4_remove,
 	.suspend = aic32x4_suspend,
@@ -715,7 +669,10 @@ static int aic32x4_i2c_probe(struct i2c_client *i2c,
 	if (aic32x4 == NULL)
 		return -ENOMEM;
 
-	aic32x4->control_data = i2c;
+	aic32x4->regmap = devm_regmap_init_i2c(i2c, &aic32x4_regmap);
+	if (IS_ERR(aic32x4->regmap))
+		return PTR_ERR(aic32x4->regmap);
+
 	i2c_set_clientdata(i2c, aic32x4);
 
 	if (pdata) {
-- 
cgit 


From 08149ecf2cbf788b5a0d01481e290f84e4660c06 Mon Sep 17 00:00:00 2001
From: Gregor Jasny <gjasny@googlemail.com>
Date: Sun, 8 Sep 2013 15:31:44 -0300
Subject: [media] Add HCL T12Rg-H to STK webcam upside-down table

The owner knows the system as "LX INFINITI Powerlite".
DMI information for this system:
System Information
        Manufacturer: HCL Infosystems Limited
        Product Name: T12Rg-H
        Version: 1.0
        Serial Number: B073A1189988
        UUID: 326B3F00-001D-602F-CFD2-4E45435F4349
        Wake-up Type: Power Switch
        SKU Number:
        Family:
Handle 0x0002, DMI type 2, 15 bytes
Base Board Information
        Manufacturer: HCL Infosystems Limited
        Product Name: T12Rg-H
        Version: 1.0
        Serial Number: BSN12345678901234567
        Asset Tag: ATN12345678901234567
        Features:
                Board is a hosting board
                Board is replaceable
        Location In Chassis:
        Chassis Handle: 0x0003
        Type: Motherboard
        Contained Object Handles: 0
Bus 001 Device 003: ID 05e1:0501 Syntek Semiconductor Co., Ltd DC-1125 Webcam

Signed-off-by: Gregor Jasny <gjasny@googlemail.com>
Reported-by: Noopur Srivastava <noopur.018@gmail.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/stkwebcam/stk-webcam.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/media/usb/stkwebcam/stk-webcam.c b/drivers/media/usb/stkwebcam/stk-webcam.c
index c43c8d32be40..be77482c3070 100644
--- a/drivers/media/usb/stkwebcam/stk-webcam.c
+++ b/drivers/media/usb/stkwebcam/stk-webcam.c
@@ -111,6 +111,13 @@ static const struct dmi_system_id stk_upside_down_dmi_table[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "F3JC")
 		}
 	},
+	{
+		.ident = "T12Rg-H",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "HCL Infosystems Limited"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "T12Rg-H")
+		}
+	},
 	{}
 };
 
-- 
cgit 


From 937433c2502f663e5a0e8804462bc38c41b9021f Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 12 Sep 2013 14:28:35 +0200
Subject: regulator: da9210: add Device Tree support

This patch adds basic Device Tree support to the da9210 regulator driver -
with no special properties, since also driver's platform data only contains
standard regulator initialisation parameters.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 .../devicetree/bindings/regulator/da9210.txt        | 21 +++++++++++++++++++++
 drivers/regulator/da9210-regulator.c                |  9 ++++++---
 2 files changed, 27 insertions(+), 3 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/regulator/da9210.txt

diff --git a/Documentation/devicetree/bindings/regulator/da9210.txt b/Documentation/devicetree/bindings/regulator/da9210.txt
new file mode 100644
index 000000000000..f120f229d67d
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/da9210.txt
@@ -0,0 +1,21 @@
+* Dialog Semiconductor DA9210 Voltage Regulator
+
+Required properties:
+
+- compatible:	must be "diasemi,da9210"
+- reg:		the i2c slave address of the regulator. It should be 0x68.
+
+Any standard regulator properties can be used to configure the single da9210
+DCDC.
+
+Example:
+
+	da9210@68 {
+		compatible = "diasemi,da9210";
+		reg = <0x68>;
+
+		regulator-min-microvolt = <900000>;
+		regulator-max-microvolt = <1000000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
diff --git a/drivers/regulator/da9210-regulator.c b/drivers/regulator/da9210-regulator.c
index f0fe54b38977..f7ccff14f763 100644
--- a/drivers/regulator/da9210-regulator.c
+++ b/drivers/regulator/da9210-regulator.c
@@ -25,6 +25,7 @@
 #include <linux/slab.h>
 #include <linux/regulator/driver.h>
 #include <linux/regulator/machine.h>
+#include <linux/regulator/of_regulator.h>
 #include <linux/regmap.h>
 
 #include "da9210-regulator.h"
@@ -126,7 +127,8 @@ static int da9210_i2c_probe(struct i2c_client *i2c,
 			    const struct i2c_device_id *id)
 {
 	struct da9210 *chip;
-	struct da9210_pdata *pdata = i2c->dev.platform_data;
+	struct device *dev = &i2c->dev;
+	struct da9210_pdata *pdata = dev_get_platdata(dev);
 	struct regulator_dev *rdev = NULL;
 	struct regulator_config config = { };
 	int error;
@@ -147,10 +149,11 @@ static int da9210_i2c_probe(struct i2c_client *i2c,
 	}
 
 	config.dev = &i2c->dev;
-	if (pdata)
-		config.init_data = &pdata->da9210_constraints;
+	config.init_data = pdata ? &pdata->da9210_constraints :
+		of_get_regulator_init_data(dev, dev->of_node);
 	config.driver_data = chip;
 	config.regmap = chip->regmap;
+	config.of_node = dev->of_node;
 
 	rdev = regulator_register(&da9210_reg, &config);
 	if (IS_ERR(rdev)) {
-- 
cgit 


From ce3d060990cd799cef4eeffc290090fb5da15e94 Mon Sep 17 00:00:00 2001
From: Jean-Francois Moine <moinejf@free.fr>
Date: Thu, 19 Sep 2013 11:20:43 +0200
Subject: ASoc: kirkwood: Extend the min and max number of bytes per period

This patch extends the min and max number of bytes per period.
It mainly permits to reduce the sound delay in MIDI real-time playing.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/kirkwood/kirkwood.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/kirkwood/kirkwood.h b/sound/soc/kirkwood/kirkwood.h
index f8e1ccc1c58c..bf23afbba1d7 100644
--- a/sound/soc/kirkwood/kirkwood.h
+++ b/sound/soc/kirkwood/kirkwood.h
@@ -123,8 +123,8 @@
 /* need to find where they come from               */
 #define KIRKWOOD_SND_MIN_PERIODS		8
 #define KIRKWOOD_SND_MAX_PERIODS		16
-#define KIRKWOOD_SND_MIN_PERIOD_BYTES		0x4000
-#define KIRKWOOD_SND_MAX_PERIOD_BYTES		0x4000
+#define KIRKWOOD_SND_MIN_PERIOD_BYTES		0x800
+#define KIRKWOOD_SND_MAX_PERIOD_BYTES		0x8000
 #define KIRKWOOD_SND_MAX_BUFFER_BYTES		(KIRKWOOD_SND_MAX_PERIOD_BYTES \
 						 * KIRKWOOD_SND_MAX_PERIODS)
 
-- 
cgit 


From 1966bc2a48f12d5d11c4fbe0880955cc4bfda0f9 Mon Sep 17 00:00:00 2001
From: Ondrej Zary <linux@rainbow-software.org>
Date: Fri, 30 Aug 2013 17:54:23 -0300
Subject: [media] gspca: store current mode instead of individual parameters

Store complete current mode (struct v4l2_pix_format) in struct gspca_dev
instead of separate pixfmt, width and height parameters.
This is a preparation for variable resolution support.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/gspca/conex.c                  |  3 +-
 drivers/media/usb/gspca/cpia1.c                  |  4 +-
 drivers/media/usb/gspca/gspca.c                  | 30 +++++---------
 drivers/media/usb/gspca/gspca.h                  |  4 +-
 drivers/media/usb/gspca/jeilinj.c                |  5 ++-
 drivers/media/usb/gspca/jl2005bcd.c              |  2 +-
 drivers/media/usb/gspca/m5602/m5602_mt9m111.c    |  2 +-
 drivers/media/usb/gspca/mars.c                   |  7 ++--
 drivers/media/usb/gspca/mr97310a.c               |  6 +--
 drivers/media/usb/gspca/nw80x.c                  | 11 ++---
 drivers/media/usb/gspca/ov519.c                  | 52 +++++++++++++-----------
 drivers/media/usb/gspca/ov534.c                  |  5 ++-
 drivers/media/usb/gspca/pac207.c                 |  4 +-
 drivers/media/usb/gspca/pac7311.c                |  6 +--
 drivers/media/usb/gspca/se401.c                  |  6 +--
 drivers/media/usb/gspca/sn9c20x.c                |  6 +--
 drivers/media/usb/gspca/sonixb.c                 |  2 +-
 drivers/media/usb/gspca/sonixj.c                 |  3 +-
 drivers/media/usb/gspca/spca1528.c               |  3 +-
 drivers/media/usb/gspca/spca500.c                |  3 +-
 drivers/media/usb/gspca/sq905c.c                 |  2 +-
 drivers/media/usb/gspca/sq930x.c                 |  3 +-
 drivers/media/usb/gspca/stk014.c                 |  5 ++-
 drivers/media/usb/gspca/stk1135.c                |  8 ++--
 drivers/media/usb/gspca/stv06xx/stv06xx.c        |  2 +-
 drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c |  2 +-
 drivers/media/usb/gspca/sunplus.c                |  3 +-
 drivers/media/usb/gspca/topro.c                  | 13 +++---
 drivers/media/usb/gspca/tv8532.c                 |  7 ++--
 drivers/media/usb/gspca/vicam.c                  |  8 ++--
 drivers/media/usb/gspca/w996Xcf.c                | 28 ++++++-------
 drivers/media/usb/gspca/xirlink_cit.c            | 34 ++++++++--------
 drivers/media/usb/gspca/zc3xx.c                  |  3 +-
 33 files changed, 146 insertions(+), 136 deletions(-)

diff --git a/drivers/media/usb/gspca/conex.c b/drivers/media/usb/gspca/conex.c
index 38714df31ac4..2e15c80d6e3d 100644
--- a/drivers/media/usb/gspca/conex.c
+++ b/drivers/media/usb/gspca/conex.c
@@ -783,7 +783,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 	struct sd *sd = (struct sd *) gspca_dev;
 
 	/* create the JPEG header */
-	jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
+	jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height,
+			gspca_dev->pixfmt.width,
 			0x22);		/* JPEG 411 */
 	jpeg_set_qual(sd->jpeg_hdr, QUALITY);
 
diff --git a/drivers/media/usb/gspca/cpia1.c b/drivers/media/usb/gspca/cpia1.c
index 064b53043b15..f23df4a9d8c5 100644
--- a/drivers/media/usb/gspca/cpia1.c
+++ b/drivers/media/usb/gspca/cpia1.c
@@ -1553,9 +1553,9 @@ static int sd_start(struct gspca_dev *gspca_dev)
 		sd->params.format.videoSize = VIDEOSIZE_CIF;
 
 	sd->params.roi.colEnd = sd->params.roi.colStart +
-				(gspca_dev->width >> 3);
+				(gspca_dev->pixfmt.width >> 3);
 	sd->params.roi.rowEnd = sd->params.roi.rowStart +
-				(gspca_dev->height >> 2);
+				(gspca_dev->pixfmt.height >> 2);
 
 	/* And now set the camera to a known state */
 	ret = do_command(gspca_dev, CPIA_COMMAND_SetGrabMode,
diff --git a/drivers/media/usb/gspca/gspca.c b/drivers/media/usb/gspca/gspca.c
index 048507b27bb2..c341bbb638f0 100644
--- a/drivers/media/usb/gspca/gspca.c
+++ b/drivers/media/usb/gspca/gspca.c
@@ -504,8 +504,7 @@ static int frame_alloc(struct gspca_dev *gspca_dev, struct file *file,
 	unsigned int frsz;
 	int i;
 
-	i = gspca_dev->curr_mode;
-	frsz = gspca_dev->cam.cam_mode[i].sizeimage;
+	frsz = gspca_dev->pixfmt.sizeimage;
 	PDEBUG(D_STREAM, "frame alloc frsz: %d", frsz);
 	frsz = PAGE_ALIGN(frsz);
 	if (count >= GSPCA_MAX_FRAMES)
@@ -627,16 +626,14 @@ static struct usb_host_endpoint *alt_xfer(struct usb_host_interface *alt,
 static u32 which_bandwidth(struct gspca_dev *gspca_dev)
 {
 	u32 bandwidth;
-	int i;
 
 	/* get the (max) image size */
-	i = gspca_dev->curr_mode;
-	bandwidth = gspca_dev->cam.cam_mode[i].sizeimage;
+	bandwidth = gspca_dev->pixfmt.sizeimage;
 
 	/* if the image is compressed, estimate its mean size */
 	if (!gspca_dev->cam.needs_full_bandwidth &&
-	    bandwidth < gspca_dev->cam.cam_mode[i].width *
-				gspca_dev->cam.cam_mode[i].height)
+	    bandwidth < gspca_dev->pixfmt.width *
+				gspca_dev->pixfmt.height)
 		bandwidth = bandwidth * 3 / 8;	/* 0.375 */
 
 	/* estimate the frame rate */
@@ -650,7 +647,7 @@ static u32 which_bandwidth(struct gspca_dev *gspca_dev)
 
 		/* don't hope more than 15 fps with USB 1.1 and
 		 * image resolution >= 640x480 */
-		if (gspca_dev->width >= 640
+		if (gspca_dev->pixfmt.width >= 640
 		 && gspca_dev->dev->speed == USB_SPEED_FULL)
 			bandwidth *= 15;		/* 15 fps */
 		else
@@ -982,9 +979,7 @@ static void gspca_set_default_mode(struct gspca_dev *gspca_dev)
 
 	i = gspca_dev->cam.nmodes - 1;	/* take the highest mode */
 	gspca_dev->curr_mode = i;
-	gspca_dev->width = gspca_dev->cam.cam_mode[i].width;
-	gspca_dev->height = gspca_dev->cam.cam_mode[i].height;
-	gspca_dev->pixfmt = gspca_dev->cam.cam_mode[i].pixelformat;
+	gspca_dev->pixfmt = gspca_dev->cam.cam_mode[i];
 
 	/* does nothing if ctrl_handler == NULL */
 	v4l2_ctrl_handler_setup(gspca_dev->vdev.ctrl_handler);
@@ -1105,10 +1100,8 @@ static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 			    struct v4l2_format *fmt)
 {
 	struct gspca_dev *gspca_dev = video_drvdata(file);
-	int mode;
 
-	mode = gspca_dev->curr_mode;
-	fmt->fmt.pix = gspca_dev->cam.cam_mode[mode];
+	fmt->fmt.pix = gspca_dev->pixfmt;
 	/* some drivers use priv internally, zero it before giving it to
 	   userspace */
 	fmt->fmt.pix.priv = 0;
@@ -1187,10 +1180,8 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 		ret = -EBUSY;
 		goto out;
 	}
-	gspca_dev->width = fmt->fmt.pix.width;
-	gspca_dev->height = fmt->fmt.pix.height;
-	gspca_dev->pixfmt = fmt->fmt.pix.pixelformat;
 	gspca_dev->curr_mode = ret;
+	gspca_dev->pixfmt = gspca_dev->cam.cam_mode[ret];
 
 	ret = 0;
 out:
@@ -1471,8 +1462,9 @@ static int vidioc_streamon(struct file *file, void *priv,
 		if (ret < 0)
 			goto out;
 	}
-	PDEBUG_MODE(gspca_dev, D_STREAM, "stream on OK", gspca_dev->pixfmt,
-		    gspca_dev->width, gspca_dev->height);
+	PDEBUG_MODE(gspca_dev, D_STREAM, "stream on OK",
+		    gspca_dev->pixfmt.pixelformat,
+		    gspca_dev->pixfmt.width, gspca_dev->pixfmt.height);
 	ret = 0;
 out:
 	mutex_unlock(&gspca_dev->queue_lock);
diff --git a/drivers/media/usb/gspca/gspca.h b/drivers/media/usb/gspca/gspca.h
index ac0b11f46f50..0f3d15002555 100644
--- a/drivers/media/usb/gspca/gspca.h
+++ b/drivers/media/usb/gspca/gspca.h
@@ -183,9 +183,7 @@ struct gspca_dev {
 	__u8 streaming;			/* protected by both mutexes (*) */
 
 	__u8 curr_mode;			/* current camera mode */
-	__u32 pixfmt;			/* current mode parameters */
-	__u16 width;
-	__u16 height;
+	struct v4l2_pix_format pixfmt;	/* current mode parameters */
 	__u32 sequence;			/* frame sequence number */
 
 	wait_queue_head_t wq;		/* wait queue */
diff --git a/drivers/media/usb/gspca/jeilinj.c b/drivers/media/usb/gspca/jeilinj.c
index 8da3dde38385..19736e237b37 100644
--- a/drivers/media/usb/gspca/jeilinj.c
+++ b/drivers/media/usb/gspca/jeilinj.c
@@ -378,11 +378,12 @@ static int sd_start(struct gspca_dev *gspca_dev)
 	struct sd *dev = (struct sd *) gspca_dev;
 
 	/* create the JPEG header */
-	jpeg_define(dev->jpeg_hdr, gspca_dev->height, gspca_dev->width,
+	jpeg_define(dev->jpeg_hdr, gspca_dev->pixfmt.height,
+			gspca_dev->pixfmt.width,
 			0x21);          /* JPEG 422 */
 	jpeg_set_qual(dev->jpeg_hdr, dev->quality);
 	PDEBUG(D_STREAM, "Start streaming at %dx%d",
-		gspca_dev->height, gspca_dev->width);
+		gspca_dev->pixfmt.height, gspca_dev->pixfmt.width);
 	jlj_start(gspca_dev);
 	return gspca_dev->usb_err;
 }
diff --git a/drivers/media/usb/gspca/jl2005bcd.c b/drivers/media/usb/gspca/jl2005bcd.c
index fdaeeb14453f..5b481fa43099 100644
--- a/drivers/media/usb/gspca/jl2005bcd.c
+++ b/drivers/media/usb/gspca/jl2005bcd.c
@@ -455,7 +455,7 @@ static int sd_start(struct gspca_dev *gspca_dev)
 	struct sd *sd = (struct sd *) gspca_dev;
 	sd->cap_mode = gspca_dev->cam.cam_mode;
 
-	switch (gspca_dev->width) {
+	switch (gspca_dev->pixfmt.width) {
 	case 640:
 		PDEBUG(D_STREAM, "Start streaming at vga resolution");
 		jl2005c_stream_start_vga_lg(gspca_dev);
diff --git a/drivers/media/usb/gspca/m5602/m5602_mt9m111.c b/drivers/media/usb/gspca/m5602/m5602_mt9m111.c
index cfa4663f8934..27fcef11aef4 100644
--- a/drivers/media/usb/gspca/m5602/m5602_mt9m111.c
+++ b/drivers/media/usb/gspca/m5602/m5602_mt9m111.c
@@ -266,7 +266,7 @@ static int mt9m111_set_hvflip(struct gspca_dev *gspca_dev)
 		return err;
 
 	data[0] = MT9M111_RMB_OVER_SIZED;
-	if (gspca_dev->width == 640) {
+	if (gspca_dev->pixfmt.width == 640) {
 		data[1] = MT9M111_RMB_ROW_SKIP_2X |
 			  MT9M111_RMB_COLUMN_SKIP_2X |
 			  (hflip << 1) | vflip;
diff --git a/drivers/media/usb/gspca/mars.c b/drivers/media/usb/gspca/mars.c
index ff2c5abf115b..779a8785f421 100644
--- a/drivers/media/usb/gspca/mars.c
+++ b/drivers/media/usb/gspca/mars.c
@@ -254,7 +254,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 	int i;
 
 	/* create the JPEG header */
-	jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
+	jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height,
+			gspca_dev->pixfmt.width,
 			0x21);		/* JPEG 422 */
 	jpeg_set_qual(sd->jpeg_hdr, QUALITY);
 
@@ -270,8 +271,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 	data[0] = 0x00;		/* address */
 	data[1] = 0x0c | 0x01;	/* reg 0 */
 	data[2] = 0x01;		/* reg 1 */
-	data[3] = gspca_dev->width / 8;		/* h_size , reg 2 */
-	data[4] = gspca_dev->height / 8;	/* v_size , reg 3 */
+	data[3] = gspca_dev->pixfmt.width / 8;	/* h_size , reg 2 */
+	data[4] = gspca_dev->pixfmt.height / 8;	/* v_size , reg 3 */
 	data[5] = 0x30;		/* reg 4, MI, PAS5101 :
 				 *	0x30 for 24mhz , 0x28 for 12mhz */
 	data[6] = 0x02;		/* reg 5, H start - was 0x04 */
diff --git a/drivers/media/usb/gspca/mr97310a.c b/drivers/media/usb/gspca/mr97310a.c
index 68bb2f359666..f006e29ca019 100644
--- a/drivers/media/usb/gspca/mr97310a.c
+++ b/drivers/media/usb/gspca/mr97310a.c
@@ -521,7 +521,7 @@ static int start_cif_cam(struct gspca_dev *gspca_dev)
 	if (sd->sensor_type)
 		data[5] = 0xbb;
 
-	switch (gspca_dev->width) {
+	switch (gspca_dev->pixfmt.width) {
 	case 160:
 		data[9] |= 0x04;  /* reg 8, 2:1 scale down from 320 */
 		/* fall thru */
@@ -618,7 +618,7 @@ static int start_vga_cam(struct gspca_dev *gspca_dev)
 		data[10] = 0x18;
 	}
 
-	switch (gspca_dev->width) {
+	switch (gspca_dev->pixfmt.width) {
 	case 160:
 		data[9] |= 0x0c;  /* reg 8, 4:1 scale down */
 		/* fall thru */
@@ -847,7 +847,7 @@ static void setexposure(struct gspca_dev *gspca_dev, s32 expo, s32 min_clockdiv)
 		u8 clockdiv = (60 * expo + 7999) / 8000;
 
 		/* Limit framerate to not exceed usb bandwidth */
-		if (clockdiv < min_clockdiv && gspca_dev->width >= 320)
+		if (clockdiv < min_clockdiv && gspca_dev->pixfmt.width >= 320)
 			clockdiv = min_clockdiv;
 		else if (clockdiv < 2)
 			clockdiv = 2;
diff --git a/drivers/media/usb/gspca/nw80x.c b/drivers/media/usb/gspca/nw80x.c
index 44c9964b1b3e..599f755e75b8 100644
--- a/drivers/media/usb/gspca/nw80x.c
+++ b/drivers/media/usb/gspca/nw80x.c
@@ -1708,7 +1708,7 @@ static void setautogain(struct gspca_dev *gspca_dev, s32 val)
 
 	reg_r(gspca_dev, 0x1004, 1);
 	if (gspca_dev->usb_buf[0] & 0x04) {	/* if AE_FULL_FRM */
-		sd->ae_res = gspca_dev->width * gspca_dev->height;
+		sd->ae_res = gspca_dev->pixfmt.width * gspca_dev->pixfmt.height;
 	} else {				/* get the AE window size */
 		reg_r(gspca_dev, 0x1011, 8);
 		w = (gspca_dev->usb_buf[1] << 8) + gspca_dev->usb_buf[0]
@@ -1717,7 +1717,8 @@ static void setautogain(struct gspca_dev *gspca_dev, s32 val)
 		  - (gspca_dev->usb_buf[7] << 8) - gspca_dev->usb_buf[6];
 		sd->ae_res = h * w;
 		if (sd->ae_res == 0)
-			sd->ae_res = gspca_dev->width * gspca_dev->height;
+			sd->ae_res = gspca_dev->pixfmt.width *
+					gspca_dev->pixfmt.height;
 	}
 }
 
@@ -1856,21 +1857,21 @@ static int sd_start(struct gspca_dev *gspca_dev)
 	reg_w_buf(gspca_dev, cmd);
 	switch (sd->webcam) {
 	case P35u:
-		if (gspca_dev->width == 320)
+		if (gspca_dev->pixfmt.width == 320)
 			reg_w_buf(gspca_dev, nw801_start_qvga);
 		else
 			reg_w_buf(gspca_dev, nw801_start_vga);
 		reg_w_buf(gspca_dev, nw801_start_2);
 		break;
 	case Kr651us:
-		if (gspca_dev->width == 320)
+		if (gspca_dev->pixfmt.width == 320)
 			reg_w_buf(gspca_dev, kr651_start_qvga);
 		else
 			reg_w_buf(gspca_dev, kr651_start_vga);
 		reg_w_buf(gspca_dev, kr651_start_2);
 		break;
 	case Proscope:
-		if (gspca_dev->width == 320)
+		if (gspca_dev->pixfmt.width == 320)
 			reg_w_buf(gspca_dev, proscope_start_qvga);
 		else
 			reg_w_buf(gspca_dev, proscope_start_vga);
diff --git a/drivers/media/usb/gspca/ov519.c b/drivers/media/usb/gspca/ov519.c
index 8937d79fd176..c95f32a0c02b 100644
--- a/drivers/media/usb/gspca/ov519.c
+++ b/drivers/media/usb/gspca/ov519.c
@@ -3468,7 +3468,7 @@ static int sd_isoc_init(struct gspca_dev *gspca_dev)
 
 	switch (sd->bridge) {
 	case BRIDGE_OVFX2:
-		if (gspca_dev->width != 800)
+		if (gspca_dev->pixfmt.width != 800)
 			gspca_dev->cam.bulk_size = OVFX2_BULK_SIZE;
 		else
 			gspca_dev->cam.bulk_size = 7 * 4096;
@@ -3507,8 +3507,8 @@ static void ov511_mode_init_regs(struct sd *sd)
 	/* Here I'm assuming that snapshot size == image size.
 	 * I hope that's always true. --claudio
 	 */
-	hsegs = (sd->gspca_dev.width >> 3) - 1;
-	vsegs = (sd->gspca_dev.height >> 3) - 1;
+	hsegs = (sd->gspca_dev.pixfmt.width >> 3) - 1;
+	vsegs = (sd->gspca_dev.pixfmt.height >> 3) - 1;
 
 	reg_w(sd, R511_CAM_PXCNT, hsegs);
 	reg_w(sd, R511_CAM_LNCNT, vsegs);
@@ -3541,7 +3541,7 @@ static void ov511_mode_init_regs(struct sd *sd)
 	case SEN_OV7640:
 	case SEN_OV7648:
 	case SEN_OV76BE:
-		if (sd->gspca_dev.width == 320)
+		if (sd->gspca_dev.pixfmt.width == 320)
 			interlaced = 1;
 		/* Fall through */
 	case SEN_OV6630:
@@ -3551,7 +3551,7 @@ static void ov511_mode_init_regs(struct sd *sd)
 		case 30:
 		case 25:
 			/* Not enough bandwidth to do 640x480 @ 30 fps */
-			if (sd->gspca_dev.width != 640) {
+			if (sd->gspca_dev.pixfmt.width != 640) {
 				sd->clockdiv = 0;
 				break;
 			}
@@ -3584,7 +3584,8 @@ static void ov511_mode_init_regs(struct sd *sd)
 
 	/* Check if we have enough bandwidth to disable compression */
 	fps = (interlaced ? 60 : 30) / (sd->clockdiv + 1) + 1;
-	needed = fps * sd->gspca_dev.width * sd->gspca_dev.height * 3 / 2;
+	needed = fps * sd->gspca_dev.pixfmt.width *
+			sd->gspca_dev.pixfmt.height * 3 / 2;
 	/* 1000 isoc packets/sec */
 	if (needed > 1000 * packet_size) {
 		/* Enable Y and UV quantization and compression */
@@ -3646,8 +3647,8 @@ static void ov518_mode_init_regs(struct sd *sd)
 		reg_w(sd, 0x38, 0x80);
 	}
 
-	hsegs = sd->gspca_dev.width / 16;
-	vsegs = sd->gspca_dev.height / 4;
+	hsegs = sd->gspca_dev.pixfmt.width / 16;
+	vsegs = sd->gspca_dev.pixfmt.height / 4;
 
 	reg_w(sd, 0x29, hsegs);
 	reg_w(sd, 0x2a, vsegs);
@@ -3686,7 +3687,8 @@ static void ov518_mode_init_regs(struct sd *sd)
 			 * happened to be with revision < 2 cams using an
 			 * OV7620 and revision 2 cams using an OV7620AE.
 			 */
-			if (sd->revision > 0 && sd->gspca_dev.width == 640) {
+			if (sd->revision > 0 &&
+					sd->gspca_dev.pixfmt.width == 640) {
 				reg_w(sd, 0x20, 0x60);
 				reg_w(sd, 0x21, 0x1f);
 			} else {
@@ -3812,8 +3814,8 @@ static void ov519_mode_init_regs(struct sd *sd)
 		break;
 	}
 
-	reg_w(sd, OV519_R10_H_SIZE,	sd->gspca_dev.width >> 4);
-	reg_w(sd, OV519_R11_V_SIZE,	sd->gspca_dev.height >> 3);
+	reg_w(sd, OV519_R10_H_SIZE,	sd->gspca_dev.pixfmt.width >> 4);
+	reg_w(sd, OV519_R11_V_SIZE,	sd->gspca_dev.pixfmt.height >> 3);
 	if (sd->sensor == SEN_OV7670 &&
 	    sd->gspca_dev.cam.cam_mode[sd->gspca_dev.curr_mode].priv)
 		reg_w(sd, OV519_R12_X_OFFSETL, 0x04);
@@ -3947,14 +3949,16 @@ static void mode_init_ov_sensor_regs(struct sd *sd)
 	    }
 	case SEN_OV3610:
 		if (qvga) {
-			xstart = (1040 - gspca_dev->width) / 2 + (0x1f << 4);
-			ystart = (776 - gspca_dev->height) / 2;
+			xstart = (1040 - gspca_dev->pixfmt.width) / 2 +
+				(0x1f << 4);
+			ystart = (776 - gspca_dev->pixfmt.height) / 2;
 		} else {
-			xstart = (2076 - gspca_dev->width) / 2 + (0x10 << 4);
-			ystart = (1544 - gspca_dev->height) / 2;
+			xstart = (2076 - gspca_dev->pixfmt.width) / 2 +
+				(0x10 << 4);
+			ystart = (1544 - gspca_dev->pixfmt.height) / 2;
 		}
-		xend = xstart + gspca_dev->width;
-		yend = ystart + gspca_dev->height;
+		xend = xstart + gspca_dev->pixfmt.width;
+		yend = ystart + gspca_dev->pixfmt.height;
 		/* Writing to the COMH register resets the other windowing regs
 		   to their default values, so we must do this first. */
 		i2c_w_mask(sd, 0x12, qvga ? 0x40 : 0x00, 0xf0);
@@ -4229,8 +4233,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 	struct sd *sd = (struct sd *) gspca_dev;
 
 	/* Default for most bridges, allow bridge_mode_init_regs to override */
-	sd->sensor_width = sd->gspca_dev.width;
-	sd->sensor_height = sd->gspca_dev.height;
+	sd->sensor_width = sd->gspca_dev.pixfmt.width;
+	sd->sensor_height = sd->gspca_dev.pixfmt.height;
 
 	switch (sd->bridge) {
 	case BRIDGE_OV511:
@@ -4345,12 +4349,13 @@ static void ov511_pkt_scan(struct gspca_dev *gspca_dev,
 		ov51x_handle_button(gspca_dev, (in[8] >> 2) & 1);
 		if (in[8] & 0x80) {
 			/* Frame end */
-			if ((in[9] + 1) * 8 != gspca_dev->width ||
-			    (in[10] + 1) * 8 != gspca_dev->height) {
+			if ((in[9] + 1) * 8 != gspca_dev->pixfmt.width ||
+			    (in[10] + 1) * 8 != gspca_dev->pixfmt.height) {
 				PERR("Invalid frame size, got: %dx%d,"
 					" requested: %dx%d\n",
 					(in[9] + 1) * 8, (in[10] + 1) * 8,
-					gspca_dev->width, gspca_dev->height);
+					gspca_dev->pixfmt.width,
+					gspca_dev->pixfmt.height);
 				gspca_dev->last_packet_type = DISCARD_PACKET;
 				return;
 			}
@@ -4470,7 +4475,8 @@ static void ovfx2_pkt_scan(struct gspca_dev *gspca_dev,
 		if (sd->first_frame) {
 			sd->first_frame--;
 			if (gspca_dev->image_len <
-				  sd->gspca_dev.width * sd->gspca_dev.height)
+				  sd->gspca_dev.pixfmt.width *
+					sd->gspca_dev.pixfmt.height)
 				gspca_dev->last_packet_type = DISCARD_PACKET;
 		}
 		gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
diff --git a/drivers/media/usb/gspca/ov534.c b/drivers/media/usb/gspca/ov534.c
index 03a33c46ca2c..90f0d637cd9d 100644
--- a/drivers/media/usb/gspca/ov534.c
+++ b/drivers/media/usb/gspca/ov534.c
@@ -1440,9 +1440,10 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 		/* If this packet is marked as EOF, end the frame */
 		} else if (data[1] & UVC_STREAM_EOF) {
 			sd->last_pts = 0;
-			if (gspca_dev->pixfmt == V4L2_PIX_FMT_YUYV
+			if (gspca_dev->pixfmt.pixelformat == V4L2_PIX_FMT_YUYV
 			 && gspca_dev->image_len + len - 12 !=
-				   gspca_dev->width * gspca_dev->height * 2) {
+				   gspca_dev->pixfmt.width *
+					gspca_dev->pixfmt.height * 2) {
 				PDEBUG(D_PACK, "wrong sized frame");
 				goto discard;
 			}
diff --git a/drivers/media/usb/gspca/pac207.c b/drivers/media/usb/gspca/pac207.c
index 83519be94e58..cd79c180f67b 100644
--- a/drivers/media/usb/gspca/pac207.c
+++ b/drivers/media/usb/gspca/pac207.c
@@ -299,7 +299,7 @@ static int sd_start(struct gspca_dev *gspca_dev)
 	pac207_write_regs(gspca_dev, 0x0042, pac207_sensor_init[3], 8);
 
 	/* Compression Balance */
-	if (gspca_dev->width == 176)
+	if (gspca_dev->pixfmt.width == 176)
 		pac207_write_reg(gspca_dev, 0x4a, 0xff);
 	else
 		pac207_write_reg(gspca_dev, 0x4a, 0x30);
@@ -317,7 +317,7 @@ static int sd_start(struct gspca_dev *gspca_dev)
 		mode = 0x00;
 	else
 		mode = 0x02;
-	if (gspca_dev->width == 176) {	/* 176x144 */
+	if (gspca_dev->pixfmt.width == 176) {	/* 176x144 */
 		mode |= 0x01;
 		PDEBUG(D_STREAM, "pac207_start mode 176x144");
 	} else {				/* 352x288 */
diff --git a/drivers/media/usb/gspca/pac7311.c b/drivers/media/usb/gspca/pac7311.c
index 1a5bdc853a80..25f86b1e74a8 100644
--- a/drivers/media/usb/gspca/pac7311.c
+++ b/drivers/media/usb/gspca/pac7311.c
@@ -326,7 +326,7 @@ static void setexposure(struct gspca_dev *gspca_dev, s32 val)
 	 *  640x480 mode and page 4 reg 2 <= 3 then it must be 9
 	 */
 	reg_w(gspca_dev, 0xff, 0x01);
-	if (gspca_dev->width != 640 && val <= 3)
+	if (gspca_dev->pixfmt.width != 640 && val <= 3)
 		reg_w(gspca_dev, 0x08, 0x09);
 	else
 		reg_w(gspca_dev, 0x08, 0x08);
@@ -337,7 +337,7 @@ static void setexposure(struct gspca_dev *gspca_dev, s32 val)
 	 * camera to use higher compression or we may run out of
 	 * bandwidth.
 	 */
-	if (gspca_dev->width == 640 && val == 2)
+	if (gspca_dev->pixfmt.width == 640 && val == 2)
 		reg_w(gspca_dev, 0x80, 0x01);
 	else
 		reg_w(gspca_dev, 0x80, 0x1c);
@@ -615,7 +615,7 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 
 		/* Start the new frame with the jpeg header */
 		pac_start_frame(gspca_dev,
-			gspca_dev->height, gspca_dev->width);
+			gspca_dev->pixfmt.height, gspca_dev->pixfmt.width);
 	}
 	gspca_frame_add(gspca_dev, INTER_PACKET, data, len);
 }
diff --git a/drivers/media/usb/gspca/se401.c b/drivers/media/usb/gspca/se401.c
index 5f729b8aa2bd..5102cea50471 100644
--- a/drivers/media/usb/gspca/se401.c
+++ b/drivers/media/usb/gspca/se401.c
@@ -354,9 +354,9 @@ static int sd_start(struct gspca_dev *gspca_dev)
 
 	/* set size + mode */
 	se401_write_req(gspca_dev, SE401_REQ_SET_WIDTH,
-			gspca_dev->width * mult, 0);
+			gspca_dev->pixfmt.width * mult, 0);
 	se401_write_req(gspca_dev, SE401_REQ_SET_HEIGHT,
-			gspca_dev->height * mult, 0);
+			gspca_dev->pixfmt.height * mult, 0);
 	/*
 	 * HDG: disabled this as it does not seem to do anything
 	 * se401_write_req(gspca_dev, SE401_REQ_SET_OUTPUT_MODE,
@@ -480,7 +480,7 @@ static void sd_complete_frame(struct gspca_dev *gspca_dev, u8 *data, int len)
 static void sd_pkt_scan_janggu(struct gspca_dev *gspca_dev, u8 *data, int len)
 {
 	struct sd *sd = (struct sd *)gspca_dev;
-	int imagesize = gspca_dev->width * gspca_dev->height;
+	int imagesize = gspca_dev->pixfmt.width * gspca_dev->pixfmt.height;
 	int i, plen, bits, pixels, info, count;
 
 	if (sd->restart_stream)
diff --git a/drivers/media/usb/gspca/sn9c20x.c b/drivers/media/usb/gspca/sn9c20x.c
index f4453d52801b..2a38621cf718 100644
--- a/drivers/media/usb/gspca/sn9c20x.c
+++ b/drivers/media/usb/gspca/sn9c20x.c
@@ -1955,7 +1955,7 @@ static int sd_isoc_init(struct gspca_dev *gspca_dev)
 			return 0;
 		}
 
-		switch (gspca_dev->width) {
+		switch (gspca_dev->pixfmt.width) {
 		case 160: /* 160x120 */
 			gspca_dev->alt = 2;
 			break;
@@ -1985,8 +1985,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 	int mode = gspca_dev->cam.cam_mode[(int) gspca_dev->curr_mode].priv;
-	int width = gspca_dev->width;
-	int height = gspca_dev->height;
+	int width = gspca_dev->pixfmt.width;
+	int height = gspca_dev->pixfmt.height;
 	u8 fmt, scale = 0;
 
 	jpeg_define(sd->jpeg_hdr, height, width,
diff --git a/drivers/media/usb/gspca/sonixb.c b/drivers/media/usb/gspca/sonixb.c
index d7ff3b9687c5..921802cbdfe0 100644
--- a/drivers/media/usb/gspca/sonixb.c
+++ b/drivers/media/usb/gspca/sonixb.c
@@ -753,7 +753,7 @@ static void setexposure(struct gspca_dev *gspca_dev)
 		/* In 640x480, if the reg11 has less than 4, the image is
 		   unstable (the bridge goes into a higher compression mode
 		   which we have not reverse engineered yet). */
-		if (gspca_dev->width == 640 && reg11 < 4)
+		if (gspca_dev->pixfmt.width == 640 && reg11 < 4)
 			reg11 = 4;
 
 		/* frame exposure time in ms = 1000 * reg11 / 30    ->
diff --git a/drivers/media/usb/gspca/sonixj.c b/drivers/media/usb/gspca/sonixj.c
index 3b5ccb1c4cdf..c69b45d7cfbf 100644
--- a/drivers/media/usb/gspca/sonixj.c
+++ b/drivers/media/usb/gspca/sonixj.c
@@ -2204,7 +2204,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 				{ 0x14, 0xe7, 0x1e, 0xdd };
 
 	/* create the JPEG header */
-	jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
+	jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height,
+			gspca_dev->pixfmt.width,
 			0x21);		/* JPEG 422 */
 
 	/* initialize the bridge */
diff --git a/drivers/media/usb/gspca/spca1528.c b/drivers/media/usb/gspca/spca1528.c
index 688592b289ea..f38fd8949609 100644
--- a/drivers/media/usb/gspca/spca1528.c
+++ b/drivers/media/usb/gspca/spca1528.c
@@ -255,7 +255,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 	struct sd *sd = (struct sd *) gspca_dev;
 
 	/* initialize the JPEG header */
-	jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
+	jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height,
+			gspca_dev->pixfmt.width,
 			0x22);		/* JPEG 411 */
 
 	/* the JPEG quality shall be 85% */
diff --git a/drivers/media/usb/gspca/spca500.c b/drivers/media/usb/gspca/spca500.c
index 9f8bf51fd64b..f011a309dd65 100644
--- a/drivers/media/usb/gspca/spca500.c
+++ b/drivers/media/usb/gspca/spca500.c
@@ -608,7 +608,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 	__u8 xmult, ymult;
 
 	/* create the JPEG header */
-	jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
+	jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height,
+			gspca_dev->pixfmt.width,
 			0x22);		/* JPEG 411 */
 	jpeg_set_qual(sd->jpeg_hdr, QUALITY);
 
diff --git a/drivers/media/usb/gspca/sq905c.c b/drivers/media/usb/gspca/sq905c.c
index acb19fb9a3df..aa21edc9502d 100644
--- a/drivers/media/usb/gspca/sq905c.c
+++ b/drivers/media/usb/gspca/sq905c.c
@@ -272,7 +272,7 @@ static int sd_start(struct gspca_dev *gspca_dev)
 
 	dev->cap_mode = gspca_dev->cam.cam_mode;
 	/* "Open the shutter" and set size, to start capture */
-	switch (gspca_dev->width) {
+	switch (gspca_dev->pixfmt.width) {
 	case 640:
 		PDEBUG(D_STREAM, "Start streaming at high resolution");
 		dev->cap_mode++;
diff --git a/drivers/media/usb/gspca/sq930x.c b/drivers/media/usb/gspca/sq930x.c
index b10d0821111c..e274cf19a3ea 100644
--- a/drivers/media/usb/gspca/sq930x.c
+++ b/drivers/media/usb/gspca/sq930x.c
@@ -906,7 +906,8 @@ static int sd_isoc_init(struct gspca_dev *gspca_dev)
 
 	gspca_dev->cam.bulk_nurbs = 1;	/* there must be one URB only */
 	sd->do_ctrl = 0;
-	gspca_dev->cam.bulk_size = gspca_dev->width * gspca_dev->height + 8;
+	gspca_dev->cam.bulk_size = gspca_dev->pixfmt.width *
+			gspca_dev->pixfmt.height + 8;
 	return 0;
 }
 
diff --git a/drivers/media/usb/gspca/stk014.c b/drivers/media/usb/gspca/stk014.c
index 8c0982607f25..b0c70fea760b 100644
--- a/drivers/media/usb/gspca/stk014.c
+++ b/drivers/media/usb/gspca/stk014.c
@@ -250,7 +250,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 	int ret, value;
 
 	/* create the JPEG header */
-	jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
+	jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height,
+			gspca_dev->pixfmt.width,
 			0x22);		/* JPEG 411 */
 	jpeg_set_qual(sd->jpeg_hdr, QUALITY);
 
@@ -261,7 +262,7 @@ static int sd_start(struct gspca_dev *gspca_dev)
 	set_par(gspca_dev, 0x00000000);
 	set_par(gspca_dev, 0x8002e001);
 	set_par(gspca_dev, 0x14000000);
-	if (gspca_dev->width > 320)
+	if (gspca_dev->pixfmt.width > 320)
 		value = 0x8002e001;		/* 640x480 */
 	else
 		value = 0x4001f000;		/* 320x240 */
diff --git a/drivers/media/usb/gspca/stk1135.c b/drivers/media/usb/gspca/stk1135.c
index 585868835ace..5a6ed4916ed8 100644
--- a/drivers/media/usb/gspca/stk1135.c
+++ b/drivers/media/usb/gspca/stk1135.c
@@ -347,8 +347,8 @@ static void stk1135_configure_mt9m112(struct gspca_dev *gspca_dev)
 		sensor_write(gspca_dev, cfg[i].reg, cfg[i].val);
 
 	/* set output size */
-	width = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].width;
-	height = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].height;
+	width = gspca_dev->pixfmt.width;
+	height = gspca_dev->pixfmt.height;
 	if (width <= 640) { /* use context A (half readout speed by default) */
 		sensor_write(gspca_dev, 0x1a7, width);
 		sensor_write(gspca_dev, 0x1aa, height);
@@ -484,8 +484,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 	reg_w(gspca_dev, STK1135_REG_CISPO + 3, 0x00);
 
 	/* set capture end position */
-	width = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].width;
-	height = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].height;
+	width = gspca_dev->pixfmt.width;
+	height = gspca_dev->pixfmt.height;
 	reg_w(gspca_dev, STK1135_REG_CIEPO + 0, width & 0xff);
 	reg_w(gspca_dev, STK1135_REG_CIEPO + 1, width >> 8);
 	reg_w(gspca_dev, STK1135_REG_CIEPO + 2, height & 0xff);
diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx.c b/drivers/media/usb/gspca/stv06xx/stv06xx.c
index 55ee7a61c67f..49d209bbf9ee 100644
--- a/drivers/media/usb/gspca/stv06xx/stv06xx.c
+++ b/drivers/media/usb/gspca/stv06xx/stv06xx.c
@@ -452,7 +452,7 @@ frame_data:
 					NULL, 0);
 
 			if (sd->bridge == BRIDGE_ST6422)
-				sd->to_skip = gspca_dev->width * 4;
+				sd->to_skip = gspca_dev->pixfmt.width * 4;
 
 			if (chunk_len)
 				PERR("Chunk length is "
diff --git a/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c b/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c
index 8206b7743300..8d785edcccf2 100644
--- a/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c
+++ b/drivers/media/usb/gspca/stv06xx/stv06xx_pb0100.c
@@ -421,7 +421,7 @@ static int pb0100_set_autogain_target(struct gspca_dev *gspca_dev, __s32 val)
 
 	/* Number of pixels counted by the sensor when subsampling the pixels.
 	 * Slightly larger than the real value to avoid oscillation */
-	totalpixels = gspca_dev->width * gspca_dev->height;
+	totalpixels = gspca_dev->pixfmt.width * gspca_dev->pixfmt.height;
 	totalpixels = totalpixels/(8*8) + totalpixels/(64*64);
 
 	brightpixels = (totalpixels * val) >> 8;
diff --git a/drivers/media/usb/gspca/sunplus.c b/drivers/media/usb/gspca/sunplus.c
index af8767a9bd4c..a517d185febe 100644
--- a/drivers/media/usb/gspca/sunplus.c
+++ b/drivers/media/usb/gspca/sunplus.c
@@ -715,7 +715,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 	int enable;
 
 	/* create the JPEG header */
-	jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
+	jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height,
+			gspca_dev->pixfmt.width,
 			0x22);		/* JPEG 411 */
 	jpeg_set_qual(sd->jpeg_hdr, QUALITY);
 
diff --git a/drivers/media/usb/gspca/topro.c b/drivers/media/usb/gspca/topro.c
index 4cb511ccc5f6..640c2fe760b3 100644
--- a/drivers/media/usb/gspca/topro.c
+++ b/drivers/media/usb/gspca/topro.c
@@ -3856,7 +3856,7 @@ static void setsharpness(struct gspca_dev *gspca_dev, s32 val)
 
 	if (sd->bridge == BRIDGE_TP6800) {
 		val |= 0x08;		/* grid compensation enable */
-		if (gspca_dev->width == 640)
+		if (gspca_dev->pixfmt.width == 640)
 			reg_w(gspca_dev, TP6800_R78_FORMAT, 0x00); /* vga */
 		else
 			val |= 0x04;		/* scaling down enable */
@@ -3880,7 +3880,7 @@ static void set_resolution(struct gspca_dev *gspca_dev)
 	struct sd *sd = (struct sd *) gspca_dev;
 
 	reg_w(gspca_dev, TP6800_R21_ENDP_1_CTL, 0x00);
-	if (gspca_dev->width == 320) {
+	if (gspca_dev->pixfmt.width == 320) {
 		reg_w(gspca_dev, TP6800_R3F_FRAME_RATE, 0x06);
 		msleep(100);
 		i2c_w(gspca_dev, CX0342_AUTO_ADC_CALIB, 0x01);
@@ -3924,7 +3924,7 @@ static int get_fr_idx(struct gspca_dev *gspca_dev)
 
 		/* 640x480 * 30 fps does not work */
 		if (i == 6			/* if 30 fps */
-		 && gspca_dev->width == 640)
+		 && gspca_dev->pixfmt.width == 640)
 			i = 0x05;		/* 15 fps */
 	} else {
 		for (i = 0; i < ARRAY_SIZE(rates_6810) - 1; i++) {
@@ -3935,7 +3935,7 @@ static int get_fr_idx(struct gspca_dev *gspca_dev)
 
 		/* 640x480 * 30 fps does not work */
 		if (i == 7			/* if 30 fps */
-		 && gspca_dev->width == 640)
+		 && gspca_dev->pixfmt.width == 640)
 			i = 6;			/* 15 fps */
 		i |= 0x80;			/* clock * 1 */
 	}
@@ -4554,7 +4554,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
 
-	jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width);
+	jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height,
+			gspca_dev->pixfmt.width);
 	set_dqt(gspca_dev, sd->quality);
 	if (sd->bridge == BRIDGE_TP6800) {
 		if (sd->sensor == SENSOR_CX0342)
@@ -4737,7 +4738,7 @@ static void sd_dq_callback(struct gspca_dev *gspca_dev)
 			(gspca_dev->usb_buf[26] << 8) + gspca_dev->usb_buf[25] +
 			(gspca_dev->usb_buf[29] << 8) + gspca_dev->usb_buf[28])
 				/ 8;
-		if (gspca_dev->width == 640)
+		if (gspca_dev->pixfmt.width == 640)
 			luma /= 4;
 		reg_w(gspca_dev, 0x7d, 0x00);
 
diff --git a/drivers/media/usb/gspca/tv8532.c b/drivers/media/usb/gspca/tv8532.c
index 8591324a53e1..d497ba38af0d 100644
--- a/drivers/media/usb/gspca/tv8532.c
+++ b/drivers/media/usb/gspca/tv8532.c
@@ -268,7 +268,7 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 	packet_type0 = packet_type1 = INTER_PACKET;
 	if (gspca_dev->empty_packet) {
 		gspca_dev->empty_packet = 0;
-		sd->packet = gspca_dev->height / 2;
+		sd->packet = gspca_dev->pixfmt.height / 2;
 		packet_type0 = FIRST_PACKET;
 	} else if (sd->packet == 0)
 		return;			/* 2 more lines in 352x288 ! */
@@ -284,9 +284,10 @@ static void sd_pkt_scan(struct gspca_dev *gspca_dev,
 	 * - 4 bytes
 	 */
 	gspca_frame_add(gspca_dev, packet_type0,
-			data + 2, gspca_dev->width);
+			data + 2, gspca_dev->pixfmt.width);
 	gspca_frame_add(gspca_dev, packet_type1,
-			data + gspca_dev->width + 5, gspca_dev->width);
+			data + gspca_dev->pixfmt.width + 5,
+			gspca_dev->pixfmt.width);
 }
 
 static int sd_s_ctrl(struct v4l2_ctrl *ctrl)
diff --git a/drivers/media/usb/gspca/vicam.c b/drivers/media/usb/gspca/vicam.c
index a2275cfe0b81..103f6c4236b0 100644
--- a/drivers/media/usb/gspca/vicam.c
+++ b/drivers/media/usb/gspca/vicam.c
@@ -121,13 +121,13 @@ static int vicam_read_frame(struct gspca_dev *gspca_dev, u8 *data, int size)
 
 	memset(req_data, 0, 16);
 	req_data[0] = gain;
-	if (gspca_dev->width == 256)
+	if (gspca_dev->pixfmt.width == 256)
 		req_data[1] |= 0x01; /* low nibble x-scale */
-	if (gspca_dev->height <= 122) {
+	if (gspca_dev->pixfmt.height <= 122) {
 		req_data[1] |= 0x10; /* high nibble y-scale */
-		unscaled_height = gspca_dev->height * 2;
+		unscaled_height = gspca_dev->pixfmt.height * 2;
 	} else
-		unscaled_height = gspca_dev->height;
+		unscaled_height = gspca_dev->pixfmt.height;
 	req_data[2] = 0x90; /* unknown, does not seem to do anything */
 	if (unscaled_height <= 200)
 		req_data[3] = 0x06; /* vend? */
diff --git a/drivers/media/usb/gspca/w996Xcf.c b/drivers/media/usb/gspca/w996Xcf.c
index 2165da0c7ce1..fb9fe2ef3a6f 100644
--- a/drivers/media/usb/gspca/w996Xcf.c
+++ b/drivers/media/usb/gspca/w996Xcf.c
@@ -430,11 +430,11 @@ static void w9968cf_set_crop_window(struct sd *sd)
 	#define SC(x) ((x) << 10)
 
 	/* Scaling factors */
-	fw = SC(sd->gspca_dev.width) / max_width;
-	fh = SC(sd->gspca_dev.height) / max_height;
+	fw = SC(sd->gspca_dev.pixfmt.width) / max_width;
+	fh = SC(sd->gspca_dev.pixfmt.height) / max_height;
 
-	cw = (fw >= fh) ? max_width : SC(sd->gspca_dev.width) / fh;
-	ch = (fw >= fh) ? SC(sd->gspca_dev.height) / fw : max_height;
+	cw = (fw >= fh) ? max_width : SC(sd->gspca_dev.pixfmt.width) / fh;
+	ch = (fw >= fh) ? SC(sd->gspca_dev.pixfmt.height) / fw : max_height;
 
 	sd->sensor_width = max_width;
 	sd->sensor_height = max_height;
@@ -454,34 +454,34 @@ static void w9968cf_mode_init_regs(struct sd *sd)
 
 	w9968cf_set_crop_window(sd);
 
-	reg_w(sd, 0x14, sd->gspca_dev.width);
-	reg_w(sd, 0x15, sd->gspca_dev.height);
+	reg_w(sd, 0x14, sd->gspca_dev.pixfmt.width);
+	reg_w(sd, 0x15, sd->gspca_dev.pixfmt.height);
 
 	/* JPEG width & height */
-	reg_w(sd, 0x30, sd->gspca_dev.width);
-	reg_w(sd, 0x31, sd->gspca_dev.height);
+	reg_w(sd, 0x30, sd->gspca_dev.pixfmt.width);
+	reg_w(sd, 0x31, sd->gspca_dev.pixfmt.height);
 
 	/* Y & UV frame buffer strides (in WORD) */
 	if (w9968cf_vga_mode[sd->gspca_dev.curr_mode].pixelformat ==
 	    V4L2_PIX_FMT_JPEG) {
-		reg_w(sd, 0x2c, sd->gspca_dev.width / 2);
-		reg_w(sd, 0x2d, sd->gspca_dev.width / 4);
+		reg_w(sd, 0x2c, sd->gspca_dev.pixfmt.width / 2);
+		reg_w(sd, 0x2d, sd->gspca_dev.pixfmt.width / 4);
 	} else
-		reg_w(sd, 0x2c, sd->gspca_dev.width);
+		reg_w(sd, 0x2c, sd->gspca_dev.pixfmt.width);
 
 	reg_w(sd, 0x00, 0xbf17); /* reset everything */
 	reg_w(sd, 0x00, 0xbf10); /* normal operation */
 
 	/* Transfer size in WORDS (for UYVY format only) */
-	val = sd->gspca_dev.width * sd->gspca_dev.height;
+	val = sd->gspca_dev.pixfmt.width * sd->gspca_dev.pixfmt.height;
 	reg_w(sd, 0x3d, val & 0xffff); /* low bits */
 	reg_w(sd, 0x3e, val >> 16);    /* high bits */
 
 	if (w9968cf_vga_mode[sd->gspca_dev.curr_mode].pixelformat ==
 	    V4L2_PIX_FMT_JPEG) {
 		/* We may get called multiple times (usb isoc bw negotiat.) */
-		jpeg_define(sd->jpeg_hdr, sd->gspca_dev.height,
-			    sd->gspca_dev.width, 0x22); /* JPEG 420 */
+		jpeg_define(sd->jpeg_hdr, sd->gspca_dev.pixfmt.height,
+			    sd->gspca_dev.pixfmt.width, 0x22); /* JPEG 420 */
 		jpeg_set_qual(sd->jpeg_hdr, v4l2_ctrl_g_ctrl(sd->jpegqual));
 		w9968cf_upload_quantizationtables(sd);
 		v4l2_ctrl_grab(sd->jpegqual, true);
diff --git a/drivers/media/usb/gspca/xirlink_cit.c b/drivers/media/usb/gspca/xirlink_cit.c
index 7eaf64eb867c..101df674d3ba 100644
--- a/drivers/media/usb/gspca/xirlink_cit.c
+++ b/drivers/media/usb/gspca/xirlink_cit.c
@@ -1471,14 +1471,14 @@ static int cit_get_clock_div(struct gspca_dev *gspca_dev)
 
 	while (clock_div > 3 &&
 			1000 * packet_size >
-			gspca_dev->width * gspca_dev->height *
+			gspca_dev->pixfmt.width * gspca_dev->pixfmt.height *
 			fps[clock_div - 1] * 3 / 2)
 		clock_div--;
 
 	PDEBUG(D_PROBE,
 	       "PacketSize: %d, res: %dx%d -> using clockdiv: %d (%d fps)",
-	       packet_size, gspca_dev->width, gspca_dev->height, clock_div,
-	       fps[clock_div]);
+	       packet_size, gspca_dev->pixfmt.width, gspca_dev->pixfmt.height,
+	       clock_div, fps[clock_div]);
 
 	return clock_div;
 }
@@ -1502,7 +1502,7 @@ static int cit_start_model0(struct gspca_dev *gspca_dev)
 	cit_write_reg(gspca_dev, 0x0002, 0x0426);
 	cit_write_reg(gspca_dev, 0x0014, 0x0427);
 
-	switch (gspca_dev->width) {
+	switch (gspca_dev->pixfmt.width) {
 	case 160: /* 160x120 */
 		cit_write_reg(gspca_dev, 0x0004, 0x010b);
 		cit_write_reg(gspca_dev, 0x0001, 0x010a);
@@ -1643,7 +1643,7 @@ static int cit_start_model1(struct gspca_dev *gspca_dev)
 	cit_write_reg(gspca_dev, 0x00, 0x0101);
 	cit_write_reg(gspca_dev, 0x00, 0x010a);
 
-	switch (gspca_dev->width) {
+	switch (gspca_dev->pixfmt.width) {
 	case 128: /* 128x96 */
 		cit_write_reg(gspca_dev, 0x80, 0x0103);
 		cit_write_reg(gspca_dev, 0x60, 0x0105);
@@ -1700,7 +1700,7 @@ static int cit_start_model1(struct gspca_dev *gspca_dev)
 	}
 
 	/* Assorted init */
-	switch (gspca_dev->width) {
+	switch (gspca_dev->pixfmt.width) {
 	case 128: /* 128x96 */
 		cit_Packet_Format1(gspca_dev, 0x2b, 0x1e);
 		cit_write_reg(gspca_dev, 0xc9, 0x0119);	/* Same everywhere */
@@ -1753,7 +1753,7 @@ static int cit_start_model2(struct gspca_dev *gspca_dev)
 	cit_write_reg(gspca_dev, 0x0000, 0x0108);
 	cit_write_reg(gspca_dev, 0x0001, 0x0133);
 	cit_write_reg(gspca_dev, 0x0001, 0x0102);
-	switch (gspca_dev->width) {
+	switch (gspca_dev->pixfmt.width) {
 	case 176: /* 176x144 */
 		cit_write_reg(gspca_dev, 0x002c, 0x0103);	/* All except 320x240 */
 		cit_write_reg(gspca_dev, 0x0000, 0x0104);	/* Same */
@@ -1792,7 +1792,7 @@ static int cit_start_model2(struct gspca_dev *gspca_dev)
 
 	cit_write_reg(gspca_dev, 0x0000, 0x0100);	/* LED on */
 
-	switch (gspca_dev->width) {
+	switch (gspca_dev->pixfmt.width) {
 	case 176: /* 176x144 */
 		cit_write_reg(gspca_dev, 0x0050, 0x0111);
 		cit_write_reg(gspca_dev, 0x00d0, 0x0111);
@@ -1840,7 +1840,7 @@ static int cit_start_model2(struct gspca_dev *gspca_dev)
 	 * Magic control of CMOS sensor. Only lower values like
 	 * 0-3 work, and picture shifts left or right. Don't change.
 	 */
-	switch (gspca_dev->width) {
+	switch (gspca_dev->pixfmt.width) {
 	case 176: /* 176x144 */
 		cit_model2_Packet1(gspca_dev, 0x0014, 0x0002);
 		cit_model2_Packet1(gspca_dev, 0x0016, 0x0002); /* Horizontal shift */
@@ -1899,7 +1899,7 @@ static int cit_start_model2(struct gspca_dev *gspca_dev)
 	 * does not allow arbitrary values and apparently is a bit mask, to
 	 * be activated only at appropriate time. Don't change it randomly!
 	 */
-	switch (gspca_dev->width) {
+	switch (gspca_dev->pixfmt.width) {
 	case 176: /* 176x144 */
 		cit_model2_Packet1(gspca_dev, 0x0026, 0x00c2);
 		break;
@@ -2023,7 +2023,7 @@ static int cit_start_model3(struct gspca_dev *gspca_dev)
 	cit_model3_Packet1(gspca_dev, 0x009e, 0x0096);
 	cit_model3_Packet1(gspca_dev, 0x009f, 0x000a);
 
-	switch (gspca_dev->width) {
+	switch (gspca_dev->pixfmt.width) {
 	case 160:
 		cit_write_reg(gspca_dev, 0x0000, 0x0101); /* Same on 160x120, 320x240 */
 		cit_write_reg(gspca_dev, 0x00a0, 0x0103); /* Same on 160x120, 320x240 */
@@ -2134,7 +2134,7 @@ static int cit_start_model3(struct gspca_dev *gspca_dev)
 	   like with the IBM netcam pro). */
 	cit_write_reg(gspca_dev, clock_div, 0x0111); /* Clock Divider */
 
-	switch (gspca_dev->width) {
+	switch (gspca_dev->pixfmt.width) {
 	case 160:
 		cit_model3_Packet1(gspca_dev, 0x001f, 0x0000); /* Same */
 		cit_model3_Packet1(gspca_dev, 0x0039, 0x001f); /* Same */
@@ -2211,7 +2211,7 @@ static int cit_start_model4(struct gspca_dev *gspca_dev)
 	cit_write_reg(gspca_dev, 0xfffa, 0x0124);
 	cit_model4_Packet1(gspca_dev, 0x0034, 0x0000);
 
-	switch (gspca_dev->width) {
+	switch (gspca_dev->pixfmt.width) {
 	case 128: /* 128x96 */
 		cit_write_reg(gspca_dev, 0x0070, 0x0119);
 		cit_write_reg(gspca_dev, 0x00d0, 0x0111);
@@ -2531,7 +2531,7 @@ static int cit_start_ibm_netcam_pro(struct gspca_dev *gspca_dev)
 	cit_write_reg(gspca_dev, 0x00fc, 0x012b); /* Same */
 	cit_write_reg(gspca_dev, 0x0022, 0x012a); /* Same */
 
-	switch (gspca_dev->width) {
+	switch (gspca_dev->pixfmt.width) {
 	case 160: /* 160x120 */
 		cit_write_reg(gspca_dev, 0x0024, 0x010b);
 		cit_write_reg(gspca_dev, 0x0089, 0x0119);
@@ -2635,7 +2635,7 @@ static int sd_isoc_init(struct gspca_dev *gspca_dev)
 	struct usb_host_interface *alt;
 	int max_packet_size;
 
-	switch (gspca_dev->width) {
+	switch (gspca_dev->pixfmt.width) {
 	case 160:
 		max_packet_size = 450;
 		break;
@@ -2659,7 +2659,7 @@ static int sd_isoc_nego(struct gspca_dev *gspca_dev)
 	int ret, packet_size, min_packet_size;
 	struct usb_host_interface *alt;
 
-	switch (gspca_dev->width) {
+	switch (gspca_dev->pixfmt.width) {
 	case 160:
 		min_packet_size = 200;
 		break;
@@ -2780,7 +2780,7 @@ static u8 *cit_find_sof(struct gspca_dev *gspca_dev, u8 *data, int len)
 	case CIT_MODEL1:
 	case CIT_MODEL3:
 	case CIT_IBM_NETCAM_PRO:
-		switch (gspca_dev->width) {
+		switch (gspca_dev->pixfmt.width) {
 		case 160: /* 160x120 */
 			byte3 = 0x02;
 			byte4 = 0x0a;
diff --git a/drivers/media/usb/gspca/zc3xx.c b/drivers/media/usb/gspca/zc3xx.c
index cbfc2f921427..7b95d8e88a20 100644
--- a/drivers/media/usb/gspca/zc3xx.c
+++ b/drivers/media/usb/gspca/zc3xx.c
@@ -6700,7 +6700,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 	};
 
 	/* create the JPEG header */
-	jpeg_define(sd->jpeg_hdr, gspca_dev->height, gspca_dev->width,
+	jpeg_define(sd->jpeg_hdr, gspca_dev->pixfmt.height,
+			gspca_dev->pixfmt.width,
 			0x21);		/* JPEG 422 */
 
 	mode = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
-- 
cgit 


From 7d687af4d5148ffb69da5f71c684380a478ad159 Mon Sep 17 00:00:00 2001
From: Ondrej Zary <linux@rainbow-software.org>
Date: Fri, 30 Aug 2013 17:54:24 -0300
Subject: [media] gspca: Support variable resolution

Add variable resolution support to gspca by allowing subdrivers to
specify try_fmt and enum_framesizes functions.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/gspca/gspca.c | 20 ++++++++++++++------
 drivers/media/usb/gspca/gspca.h |  6 ++++++
 2 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/drivers/media/usb/gspca/gspca.c b/drivers/media/usb/gspca/gspca.c
index c341bbb638f0..f3a7ace0fac9 100644
--- a/drivers/media/usb/gspca/gspca.c
+++ b/drivers/media/usb/gspca/gspca.c
@@ -1133,6 +1133,12 @@ static int try_fmt_vid_cap(struct gspca_dev *gspca_dev,
 			mode = mode2;
 	}
 	fmt->fmt.pix = gspca_dev->cam.cam_mode[mode];
+	if (gspca_dev->sd_desc->try_fmt) {
+		/* pass original resolution to subdriver try_fmt */
+		fmt->fmt.pix.width = w;
+		fmt->fmt.pix.height = h;
+		gspca_dev->sd_desc->try_fmt(gspca_dev, fmt);
+	}
 	/* some drivers use priv internally, zero it before giving it to
 	   userspace */
 	fmt->fmt.pix.priv = 0;
@@ -1171,17 +1177,16 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 		goto out;
 	}
 
-	if (ret == gspca_dev->curr_mode) {
-		ret = 0;
-		goto out;			/* same mode */
-	}
-
 	if (gspca_dev->streaming) {
 		ret = -EBUSY;
 		goto out;
 	}
 	gspca_dev->curr_mode = ret;
-	gspca_dev->pixfmt = gspca_dev->cam.cam_mode[ret];
+	if (gspca_dev->sd_desc->try_fmt)
+		/* subdriver try_fmt can modify format parameters */
+		gspca_dev->pixfmt = fmt->fmt.pix;
+	else
+		gspca_dev->pixfmt = gspca_dev->cam.cam_mode[ret];
 
 	ret = 0;
 out:
@@ -1196,6 +1201,9 @@ static int vidioc_enum_framesizes(struct file *file, void *priv,
 	int i;
 	__u32 index = 0;
 
+	if (gspca_dev->sd_desc->enum_framesizes)
+		return gspca_dev->sd_desc->enum_framesizes(gspca_dev, fsize);
+
 	for (i = 0; i < gspca_dev->cam.nmodes; i++) {
 		if (fsize->pixel_format !=
 				gspca_dev->cam.cam_mode[i].pixelformat)
diff --git a/drivers/media/usb/gspca/gspca.h b/drivers/media/usb/gspca/gspca.h
index 0f3d15002555..300642dc1a17 100644
--- a/drivers/media/usb/gspca/gspca.h
+++ b/drivers/media/usb/gspca/gspca.h
@@ -88,6 +88,10 @@ typedef void (*cam_pkt_op) (struct gspca_dev *gspca_dev,
 typedef int (*cam_int_pkt_op) (struct gspca_dev *gspca_dev,
 				u8 *data,
 				int len);
+typedef void (*cam_format_op) (struct gspca_dev *gspca_dev,
+				struct v4l2_format *fmt);
+typedef int (*cam_frmsize_op) (struct gspca_dev *gspca_dev,
+				struct v4l2_frmsizeenum *fsize);
 
 /* subdriver description */
 struct sd_desc {
@@ -109,6 +113,8 @@ struct sd_desc {
 	cam_set_jpg_op set_jcomp;
 	cam_streamparm_op get_streamparm;
 	cam_streamparm_op set_streamparm;
+	cam_format_op try_fmt;
+	cam_frmsize_op enum_framesizes;
 #ifdef CONFIG_VIDEO_ADV_DEBUG
 	cam_set_reg_op set_register;
 	cam_get_reg_op get_register;
-- 
cgit 


From 76e059874d3c362797990b4dcd58979b3f26f86f Mon Sep 17 00:00:00 2001
From: Ondrej Zary <linux@rainbow-software.org>
Date: Fri, 30 Aug 2013 17:54:25 -0300
Subject: [media] gspca-stk1135: Add variable resolution support

Add variable resolution support to Syntek STK1135 subdriver.

Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/gspca/stk1135.c | 68 +++++++++++++++++++--------------------
 1 file changed, 34 insertions(+), 34 deletions(-)

diff --git a/drivers/media/usb/gspca/stk1135.c b/drivers/media/usb/gspca/stk1135.c
index 5a6ed4916ed8..8add2f74deda 100644
--- a/drivers/media/usb/gspca/stk1135.c
+++ b/drivers/media/usb/gspca/stk1135.c
@@ -48,42 +48,11 @@ struct sd {
 };
 
 static const struct v4l2_pix_format stk1135_modes[] = {
-	{160, 120, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
-		.bytesperline = 160,
-		.sizeimage = 160 * 120,
-		.colorspace = V4L2_COLORSPACE_SRGB},
-	{176, 144, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
-		.bytesperline = 176,
-		.sizeimage = 176 * 144,
-		.colorspace = V4L2_COLORSPACE_SRGB},
-	{320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
-		.bytesperline = 320,
-		.sizeimage = 320 * 240,
-		.colorspace = V4L2_COLORSPACE_SRGB},
-	{352, 288, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
-		.bytesperline = 352,
-		.sizeimage = 352 * 288,
-		.colorspace = V4L2_COLORSPACE_SRGB},
+	/* default mode (this driver supports variable resolution) */
 	{640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
 		.bytesperline = 640,
 		.sizeimage = 640 * 480,
 		.colorspace = V4L2_COLORSPACE_SRGB},
-	{720, 576, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
-		.bytesperline = 720,
-		.sizeimage = 720 * 576,
-		.colorspace = V4L2_COLORSPACE_SRGB},
-	{800, 600, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
-		.bytesperline = 800,
-		.sizeimage = 800 * 600,
-		.colorspace = V4L2_COLORSPACE_SRGB},
-	{1024, 768, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
-		.bytesperline = 1024,
-		.sizeimage = 1024 * 768,
-		.colorspace = V4L2_COLORSPACE_SRGB},
-	{1280, 1024, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
-		.bytesperline = 1280,
-		.sizeimage = 1280 * 1024,
-		.colorspace = V4L2_COLORSPACE_SRGB},
 };
 
 /* -- read a register -- */
@@ -349,14 +318,14 @@ static void stk1135_configure_mt9m112(struct gspca_dev *gspca_dev)
 	/* set output size */
 	width = gspca_dev->pixfmt.width;
 	height = gspca_dev->pixfmt.height;
-	if (width <= 640) { /* use context A (half readout speed by default) */
+	if (width <= 640 && height <= 512) { /* context A (half readout speed)*/
 		sensor_write(gspca_dev, 0x1a7, width);
 		sensor_write(gspca_dev, 0x1aa, height);
 		/* set read mode context A */
 		sensor_write(gspca_dev, 0x0c8, 0x0000);
 		/* set resize, read mode, vblank, hblank context A */
 		sensor_write(gspca_dev, 0x2c8, 0x0000);
-	} else { /* use context B (full readout speed by default) */
+	} else { /* context B (full readout speed) */
 		sensor_write(gspca_dev, 0x1a1, width);
 		sensor_write(gspca_dev, 0x1a4, height);
 		/* set read mode context B */
@@ -643,6 +612,35 @@ static int sd_init_controls(struct gspca_dev *gspca_dev)
 	return 0;
 }
 
+void stk1135_try_fmt(struct gspca_dev *gspca_dev, struct v4l2_format *fmt)
+{
+	fmt->fmt.pix.width = clamp(fmt->fmt.pix.width, 32U, 1280U);
+	fmt->fmt.pix.height = clamp(fmt->fmt.pix.height, 32U, 1024U);
+	/* round up to even numbers */
+	fmt->fmt.pix.width += (fmt->fmt.pix.width & 1);
+	fmt->fmt.pix.height += (fmt->fmt.pix.height & 1);
+
+	fmt->fmt.pix.bytesperline = fmt->fmt.pix.width;
+	fmt->fmt.pix.sizeimage = fmt->fmt.pix.width * fmt->fmt.pix.height;
+}
+
+int stk1135_enum_framesizes(struct gspca_dev *gspca_dev,
+			struct v4l2_frmsizeenum *fsize)
+{
+	if (fsize->index != 0 || fsize->pixel_format != V4L2_PIX_FMT_SBGGR8)
+		return -EINVAL;
+
+	fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
+	fsize->stepwise.min_width = 32;
+	fsize->stepwise.min_height = 32;
+	fsize->stepwise.max_width = 1280;
+	fsize->stepwise.max_height = 1024;
+	fsize->stepwise.step_width = 2;
+	fsize->stepwise.step_height = 2;
+
+	return 0;
+}
+
 /* sub-driver description */
 static const struct sd_desc sd_desc = {
 	.name = MODULE_NAME,
@@ -653,6 +651,8 @@ static const struct sd_desc sd_desc = {
 	.stopN = sd_stopN,
 	.pkt_scan = sd_pkt_scan,
 	.dq_callback = stk1135_dq_callback,
+	.try_fmt = stk1135_try_fmt,
+	.enum_framesizes = stk1135_enum_framesizes,
 };
 
 /* -- module initialisation -- */
-- 
cgit 


From ee35fa2267df3ebe36819dd5381e0067d574131f Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Tue, 3 Sep 2013 09:31:37 -0300
Subject: [media] gspca: print small buffers via %*ph

Instead of passing each byte through stack let's use %*ph specifier to do this
job better.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/gspca/sonixb.c      |  5 +----
 drivers/media/usb/gspca/xirlink_cit.c | 12 ++++--------
 2 files changed, 5 insertions(+), 12 deletions(-)

diff --git a/drivers/media/usb/gspca/sonixb.c b/drivers/media/usb/gspca/sonixb.c
index 921802cbdfe0..7277dbd2afcd 100644
--- a/drivers/media/usb/gspca/sonixb.c
+++ b/drivers/media/usb/gspca/sonixb.c
@@ -513,10 +513,7 @@ static void i2c_w(struct gspca_dev *gspca_dev, const u8 *buf)
 		if (gspca_dev->usb_buf[0] & 0x04) {
 			if (gspca_dev->usb_buf[0] & 0x08) {
 				dev_err(gspca_dev->v4l2_dev.dev,
-					"i2c error writing %02x %02x %02x %02x"
-					" %02x %02x %02x %02x\n",
-					buf[0], buf[1], buf[2], buf[3],
-					buf[4], buf[5], buf[6], buf[7]);
+					"i2c error writing %8ph\n", buf);
 				gspca_dev->usb_err = -EIO;
 			}
 			return;
diff --git a/drivers/media/usb/gspca/xirlink_cit.c b/drivers/media/usb/gspca/xirlink_cit.c
index 101df674d3ba..a41aa7817c54 100644
--- a/drivers/media/usb/gspca/xirlink_cit.c
+++ b/drivers/media/usb/gspca/xirlink_cit.c
@@ -2864,20 +2864,16 @@ static u8 *cit_find_sof(struct gspca_dev *gspca_dev, u8 *data, int len)
 				if (data[i] == 0xff) {
 					if (i >= 4)
 						PDEBUG(D_FRAM,
-						       "header found at offset: %d: %02x %02x 00 %02x %02x %02x\n",
+						       "header found at offset: %d: %02x %02x 00 %3ph\n",
 						       i - 1,
 						       data[i - 4],
 						       data[i - 3],
-						       data[i],
-						       data[i + 1],
-						       data[i + 2]);
+						       &data[i]);
 					else
 						PDEBUG(D_FRAM,
-						       "header found at offset: %d: 00 %02x %02x %02x\n",
+						       "header found at offset: %d: 00 %3ph\n",
 						       i - 1,
-						       data[i],
-						       data[i + 1],
-						       data[i + 2]);
+						       &data[i]);
 					return data + i + (sd->sof_len - 1);
 				}
 				break;
-- 
cgit 


From 8a519c437a1cfd06a5302d4c5b5c9d2df9447609 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 22 Sep 2013 12:01:48 +0200
Subject: video: jz4740-fb: Fix LCD_CMD bit definitions

Fix the bit offsets for the LCD_CMD definitions.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/jz4740_fb.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/video/jz4740_fb.c b/drivers/video/jz4740_fb.c
index 2c49112fdd6c..23aa47504709 100644
--- a/drivers/video/jz4740_fb.c
+++ b/drivers/video/jz4740_fb.c
@@ -99,9 +99,9 @@
 #define JZ_LCD_CTRL_BPP_15_16		0x4
 #define JZ_LCD_CTRL_BPP_18_24		0x5
 
-#define JZ_LCD_CMD_SOF_IRQ BIT(15)
-#define JZ_LCD_CMD_EOF_IRQ BIT(16)
-#define JZ_LCD_CMD_ENABLE_PAL BIT(12)
+#define JZ_LCD_CMD_SOF_IRQ BIT(31)
+#define JZ_LCD_CMD_EOF_IRQ BIT(30)
+#define JZ_LCD_CMD_ENABLE_PAL BIT(28)
 
 #define JZ_LCD_SYNC_MASK 0x3ff
 
-- 
cgit 


From aeac9e3f8919cecabca5eed080bb28634ab4d3ce Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 22 Sep 2013 12:01:49 +0200
Subject: video: jz4740-fb: Use clk_prepare_enable/clk_disable_unprepare

In preparation to switching the jz4740 clk driver to the common clk framework
update the clk enable/disable calls to clk_prepare_enable/clk_disable_unprepare.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/jz4740_fb.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/video/jz4740_fb.c b/drivers/video/jz4740_fb.c
index 23aa47504709..3f99dcb28b09 100644
--- a/drivers/video/jz4740_fb.c
+++ b/drivers/video/jz4740_fb.c
@@ -471,7 +471,7 @@ static int jzfb_set_par(struct fb_info *info)
 	writel(ctrl, jzfb->base + JZ_REG_LCD_CTRL);
 
 	if (!jzfb->is_enabled)
-		clk_disable(jzfb->ldclk);
+		clk_disable_unprepare(jzfb->ldclk);
 
 	mutex_unlock(&jzfb->lock);
 
@@ -485,7 +485,7 @@ static void jzfb_enable(struct jzfb *jzfb)
 {
 	uint32_t ctrl;
 
-	clk_enable(jzfb->ldclk);
+	clk_prepare_enable(jzfb->ldclk);
 
 	jz_gpio_bulk_resume(jz_lcd_ctrl_pins, jzfb_num_ctrl_pins(jzfb));
 	jz_gpio_bulk_resume(jz_lcd_data_pins, jzfb_num_data_pins(jzfb));
@@ -514,7 +514,7 @@ static void jzfb_disable(struct jzfb *jzfb)
 	jz_gpio_bulk_suspend(jz_lcd_ctrl_pins, jzfb_num_ctrl_pins(jzfb));
 	jz_gpio_bulk_suspend(jz_lcd_data_pins, jzfb_num_data_pins(jzfb));
 
-	clk_disable(jzfb->ldclk);
+	clk_disable_unprepare(jzfb->ldclk);
 }
 
 static int jzfb_blank(int blank_mode, struct fb_info *info)
@@ -693,7 +693,7 @@ static int jzfb_probe(struct platform_device *pdev)
 
 	fb_alloc_cmap(&fb->cmap, 256, 0);
 
-	clk_enable(jzfb->ldclk);
+	clk_prepare_enable(jzfb->ldclk);
 	jzfb->is_enabled = 1;
 
 	writel(jzfb->framedesc->next, jzfb->base + JZ_REG_LCD_DA0);
@@ -763,7 +763,7 @@ static int jzfb_suspend(struct device *dev)
 static int jzfb_resume(struct device *dev)
 {
 	struct jzfb *jzfb = dev_get_drvdata(dev);
-	clk_enable(jzfb->ldclk);
+	clk_prepare_enable(jzfb->ldclk);
 
 	mutex_lock(&jzfb->lock);
 	if (jzfb->is_enabled)
-- 
cgit 


From 3a429eea10ded31d2ff088432d02072165a099f1 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Fri, 20 Sep 2013 15:54:54 -0700
Subject: ASoC: atmel-pcm: fix warning

i386 allmodconfig:

sound/soc/atmel/atmel-pcm.c: In function 'atmel_pcm_preallocate_dma_buffer':
sound/soc/atmel/atmel-pcm.c:52: warning: cast to pointer from integer of different size

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/atmel/atmel-pcm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/atmel/atmel-pcm.c b/sound/soc/atmel/atmel-pcm.c
index 3109db7b9017..612e5801003f 100644
--- a/sound/soc/atmel/atmel-pcm.c
+++ b/sound/soc/atmel/atmel-pcm.c
@@ -50,7 +50,7 @@ static int atmel_pcm_preallocate_dma_buffer(struct snd_pcm *pcm,
 	buf->area = dma_alloc_coherent(pcm->card->dev, size,
 			&buf->addr, GFP_KERNEL);
 	pr_debug("atmel-pcm: alloc dma buffer: area=%p, addr=%p, size=%zu\n",
-			(void *)buf->area, (void *)buf->addr, size);
+			(void *)buf->area, (void *)(long)buf->addr, size);
 
 	if (!buf->area)
 		return -ENOMEM;
-- 
cgit 


From d60336e2f136287de821901d4a1b56179a0f7b69 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Mon, 23 Sep 2013 11:36:21 +0800
Subject: ASoC: fsl_ssi: let check zero instead of check NO_IRQ

NO_IRQ may be defined as '(unsigned int) -1' in some architectures
(arm, sh ...), and either may not be defined in some architectures
which can enable SND_SOC_FSL_SSI (e.g. allmodconfig for arc).

When irq_of_parse_and_map() fails, it will always return 0, so need
check zero instead of NO_IRQ, or will cause compiling issue or run
time bug in some architectures.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/fsl_ssi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/fsl/fsl_ssi.c b/sound/soc/fsl/fsl_ssi.c
index cdbb641ef518..35e277379b86 100644
--- a/sound/soc/fsl/fsl_ssi.c
+++ b/sound/soc/fsl/fsl_ssi.c
@@ -929,7 +929,7 @@ static int fsl_ssi_probe(struct platform_device *pdev)
 	ssi_private->ssi_phys = res.start;
 
 	ssi_private->irq = irq_of_parse_and_map(np, 0);
-	if (ssi_private->irq == NO_IRQ) {
+	if (!ssi_private->irq) {
 		dev_err(&pdev->dev, "no irq for node %s\n", np->full_name);
 		return -ENXIO;
 	}
-- 
cgit 


From 819585bc4811bc54e316dfe521ce163816fa0ad1 Mon Sep 17 00:00:00 2001
From: Ricardo Ribalda <ricardo.ribalda@gmail.com>
Date: Wed, 28 Aug 2013 04:39:29 -0300
Subject: [media] videobuf2: Fix vb2_write prototype
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

struct v4_file_operations defines the data param as
const char __user *data but on vb2 is defined as
char __user *data.
This patch fixes the warnings produced by this. ie:
drivers/qtec/qtec_xform.c:817:2: warning: initialization from
incompatible pointer type [enabled by default]
drivers/qtec/qtec_xform.c:817:2: warning: (near initialization for
		‘qtec_xform_v4l_fops.write’) [enabled by default]

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/v4l2-core/videobuf2-core.c | 7 ++++---
 include/media/videobuf2-core.h           | 4 ++--
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index 594c75eab5a5..67ddadd5ea38 100644
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -2467,10 +2467,11 @@ size_t vb2_read(struct vb2_queue *q, char __user *data, size_t count,
 }
 EXPORT_SYMBOL_GPL(vb2_read);
 
-size_t vb2_write(struct vb2_queue *q, char __user *data, size_t count,
+size_t vb2_write(struct vb2_queue *q, const char __user *data, size_t count,
 		loff_t *ppos, int nonblocking)
 {
-	return __vb2_perform_fileio(q, data, count, ppos, nonblocking, 0);
+	return __vb2_perform_fileio(q, (char __user *) data, count,
+							ppos, nonblocking, 0);
 }
 EXPORT_SYMBOL_GPL(vb2_write);
 
@@ -2631,7 +2632,7 @@ int vb2_fop_release(struct file *file)
 }
 EXPORT_SYMBOL_GPL(vb2_fop_release);
 
-ssize_t vb2_fop_write(struct file *file, char __user *buf,
+ssize_t vb2_fop_write(struct file *file, const char __user *buf,
 		size_t count, loff_t *ppos)
 {
 	struct video_device *vdev = video_devdata(file);
diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
index 6781258d0b67..bd8218b15009 100644
--- a/include/media/videobuf2-core.h
+++ b/include/media/videobuf2-core.h
@@ -391,7 +391,7 @@ unsigned long vb2_get_unmapped_area(struct vb2_queue *q,
 unsigned int vb2_poll(struct vb2_queue *q, struct file *file, poll_table *wait);
 size_t vb2_read(struct vb2_queue *q, char __user *data, size_t count,
 		loff_t *ppos, int nonblock);
-size_t vb2_write(struct vb2_queue *q, char __user *data, size_t count,
+size_t vb2_write(struct vb2_queue *q, const char __user *data, size_t count,
 		loff_t *ppos, int nonblock);
 
 /**
@@ -491,7 +491,7 @@ int vb2_ioctl_expbuf(struct file *file, void *priv,
 
 int vb2_fop_mmap(struct file *file, struct vm_area_struct *vma);
 int vb2_fop_release(struct file *file);
-ssize_t vb2_fop_write(struct file *file, char __user *buf,
+ssize_t vb2_fop_write(struct file *file, const char __user *buf,
 		size_t count, loff_t *ppos);
 ssize_t vb2_fop_read(struct file *file, char __user *buf,
 		size_t count, loff_t *ppos);
-- 
cgit 


From df23728118cd0f53070769e2ac26a255f66daa57 Mon Sep 17 00:00:00 2001
From: Ricardo Ribalda <ricardo.ribalda@gmail.com>
Date: Fri, 2 Aug 2013 10:19:59 -0300
Subject: [media] videobuf2-dma-sg: Allocate pages as contiguous as possible

Most DMA engines have limitations regarding the number of DMA segments
(sg-buffers) that they can handle. Videobuffers can easily spread
through hundreds of pages.
In the previous aproach, the pages were allocated individually, this
could led to the creation houndreds of dma segments (sg-buffers) that
could not be handled by some DMA engines.
This patch tries to minimize the number of DMA segments by using
alloc_pages. In the worst case it will behave as before, but most
of the times it will reduce the number of dma segments

Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Andre Heider <a.heider@gmail.com>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/v4l2-core/videobuf2-dma-sg.c | 60 ++++++++++++++++++++++++------
 1 file changed, 49 insertions(+), 11 deletions(-)

diff --git a/drivers/media/v4l2-core/videobuf2-dma-sg.c b/drivers/media/v4l2-core/videobuf2-dma-sg.c
index 16ae3dcc7e29..4999c4886898 100644
--- a/drivers/media/v4l2-core/videobuf2-dma-sg.c
+++ b/drivers/media/v4l2-core/videobuf2-dma-sg.c
@@ -42,10 +42,55 @@ struct vb2_dma_sg_buf {
 
 static void vb2_dma_sg_put(void *buf_priv);
 
+static int vb2_dma_sg_alloc_compacted(struct vb2_dma_sg_buf *buf,
+		gfp_t gfp_flags)
+{
+	unsigned int last_page = 0;
+	int size = buf->sg_desc.size;
+
+	while (size > 0) {
+		struct page *pages;
+		int order;
+		int i;
+
+		order = get_order(size);
+		/* Dont over allocate*/
+		if ((PAGE_SIZE << order) > size)
+			order--;
+
+		pages = NULL;
+		while (!pages) {
+			pages = alloc_pages(GFP_KERNEL | __GFP_ZERO |
+					__GFP_NOWARN | gfp_flags, order);
+			if (pages)
+				break;
+
+			if (order == 0) {
+				while (last_page--)
+					__free_page(buf->pages[last_page]);
+				return -ENOMEM;
+			}
+			order--;
+		}
+
+		split_page(pages, order);
+		for (i = 0; i < (1 << order); i++) {
+			buf->pages[last_page] = &pages[i];
+			sg_set_page(&buf->sg_desc.sglist[last_page],
+					buf->pages[last_page], PAGE_SIZE, 0);
+			last_page++;
+		}
+
+		size -= PAGE_SIZE << order;
+	}
+
+	return 0;
+}
+
 static void *vb2_dma_sg_alloc(void *alloc_ctx, unsigned long size, gfp_t gfp_flags)
 {
 	struct vb2_dma_sg_buf *buf;
-	int i;
+	int ret;
 
 	buf = kzalloc(sizeof *buf, GFP_KERNEL);
 	if (!buf)
@@ -69,14 +114,9 @@ static void *vb2_dma_sg_alloc(void *alloc_ctx, unsigned long size, gfp_t gfp_fla
 	if (!buf->pages)
 		goto fail_pages_array_alloc;
 
-	for (i = 0; i < buf->sg_desc.num_pages; ++i) {
-		buf->pages[i] = alloc_page(GFP_KERNEL | __GFP_ZERO |
-					   __GFP_NOWARN | gfp_flags);
-		if (NULL == buf->pages[i])
-			goto fail_pages_alloc;
-		sg_set_page(&buf->sg_desc.sglist[i],
-			    buf->pages[i], PAGE_SIZE, 0);
-	}
+	ret = vb2_dma_sg_alloc_compacted(buf, gfp_flags);
+	if (ret)
+		goto fail_pages_alloc;
 
 	buf->handler.refcount = &buf->refcount;
 	buf->handler.put = vb2_dma_sg_put;
@@ -89,8 +129,6 @@ static void *vb2_dma_sg_alloc(void *alloc_ctx, unsigned long size, gfp_t gfp_fla
 	return buf;
 
 fail_pages_alloc:
-	while (--i >= 0)
-		__free_page(buf->pages[i]);
 	kfree(buf->pages);
 
 fail_pages_array_alloc:
-- 
cgit 


From 223012475968fb8dac866bff5b278e9311a36894 Mon Sep 17 00:00:00 2001
From: Ricardo Ribalda <ricardo.ribalda@gmail.com>
Date: Fri, 2 Aug 2013 10:20:00 -0300
Subject: [media] videobuf2-dma-sg: Replace vb2_dma_sg_desc with sg_table

Replace the private struct vb2_dma_sg_desc with the struct sg_table so
we can benefit from all the helping functions in lib/scatterlist.c for
things like allocating the sg or compacting the descriptor.
marvel-ccic and solo6x10 drivers, that use this API have been updated.

Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Reviewed-by: Andre Heider <a.heider@gmail.com>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
[s.nawrocki@samsung.com: minor corrections of the changelog]
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/marvell-ccic/mcam-core.c    |  14 +--
 drivers/media/v4l2-core/videobuf2-dma-sg.c         | 103 +++++++++------------
 drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c |  20 ++--
 include/media/videobuf2-dma-sg.h                   |  10 +-
 4 files changed, 63 insertions(+), 84 deletions(-)

diff --git a/drivers/media/platform/marvell-ccic/mcam-core.c b/drivers/media/platform/marvell-ccic/mcam-core.c
index 5184887b155c..32fab30a9105 100644
--- a/drivers/media/platform/marvell-ccic/mcam-core.c
+++ b/drivers/media/platform/marvell-ccic/mcam-core.c
@@ -1221,16 +1221,16 @@ static int mcam_vb_sg_buf_prepare(struct vb2_buffer *vb)
 {
 	struct mcam_vb_buffer *mvb = vb_to_mvb(vb);
 	struct mcam_camera *cam = vb2_get_drv_priv(vb->vb2_queue);
-	struct vb2_dma_sg_desc *sgd = vb2_dma_sg_plane_desc(vb, 0);
+	struct sg_table *sg_table = vb2_dma_sg_plane_desc(vb, 0);
 	struct mcam_dma_desc *desc = mvb->dma_desc;
 	struct scatterlist *sg;
 	int i;
 
-	mvb->dma_desc_nent = dma_map_sg(cam->dev, sgd->sglist, sgd->num_pages,
-			DMA_FROM_DEVICE);
+	mvb->dma_desc_nent = dma_map_sg(cam->dev, sg_table->sgl,
+			sg_table->nents, DMA_FROM_DEVICE);
 	if (mvb->dma_desc_nent <= 0)
 		return -EIO;  /* Not sure what's right here */
-	for_each_sg(sgd->sglist, sg, mvb->dma_desc_nent, i) {
+	for_each_sg(sg_table->sgl, sg, mvb->dma_desc_nent, i) {
 		desc->dma_addr = sg_dma_address(sg);
 		desc->segment_len = sg_dma_len(sg);
 		desc++;
@@ -1241,9 +1241,11 @@ static int mcam_vb_sg_buf_prepare(struct vb2_buffer *vb)
 static int mcam_vb_sg_buf_finish(struct vb2_buffer *vb)
 {
 	struct mcam_camera *cam = vb2_get_drv_priv(vb->vb2_queue);
-	struct vb2_dma_sg_desc *sgd = vb2_dma_sg_plane_desc(vb, 0);
+	struct sg_table *sg_table = vb2_dma_sg_plane_desc(vb, 0);
 
-	dma_unmap_sg(cam->dev, sgd->sglist, sgd->num_pages, DMA_FROM_DEVICE);
+	if (sg_table)
+		dma_unmap_sg(cam->dev, sg_table->sgl,
+				sg_table->nents, DMA_FROM_DEVICE);
 	return 0;
 }
 
diff --git a/drivers/media/v4l2-core/videobuf2-dma-sg.c b/drivers/media/v4l2-core/videobuf2-dma-sg.c
index 4999c4886898..2f860543912c 100644
--- a/drivers/media/v4l2-core/videobuf2-dma-sg.c
+++ b/drivers/media/v4l2-core/videobuf2-dma-sg.c
@@ -35,7 +35,9 @@ struct vb2_dma_sg_buf {
 	struct page			**pages;
 	int				write;
 	int				offset;
-	struct vb2_dma_sg_desc		sg_desc;
+	struct sg_table			sg_table;
+	size_t				size;
+	unsigned int			num_pages;
 	atomic_t			refcount;
 	struct vb2_vmarea_handler	handler;
 };
@@ -46,7 +48,7 @@ static int vb2_dma_sg_alloc_compacted(struct vb2_dma_sg_buf *buf,
 		gfp_t gfp_flags)
 {
 	unsigned int last_page = 0;
-	int size = buf->sg_desc.size;
+	int size = buf->size;
 
 	while (size > 0) {
 		struct page *pages;
@@ -74,12 +76,8 @@ static int vb2_dma_sg_alloc_compacted(struct vb2_dma_sg_buf *buf,
 		}
 
 		split_page(pages, order);
-		for (i = 0; i < (1 << order); i++) {
-			buf->pages[last_page] = &pages[i];
-			sg_set_page(&buf->sg_desc.sglist[last_page],
-					buf->pages[last_page], PAGE_SIZE, 0);
-			last_page++;
-		}
+		for (i = 0; i < (1 << order); i++)
+			buf->pages[last_page++] = &pages[i];
 
 		size -= PAGE_SIZE << order;
 	}
@@ -91,6 +89,7 @@ static void *vb2_dma_sg_alloc(void *alloc_ctx, unsigned long size, gfp_t gfp_fla
 {
 	struct vb2_dma_sg_buf *buf;
 	int ret;
+	int num_pages;
 
 	buf = kzalloc(sizeof *buf, GFP_KERNEL);
 	if (!buf)
@@ -99,17 +98,11 @@ static void *vb2_dma_sg_alloc(void *alloc_ctx, unsigned long size, gfp_t gfp_fla
 	buf->vaddr = NULL;
 	buf->write = 0;
 	buf->offset = 0;
-	buf->sg_desc.size = size;
+	buf->size = size;
 	/* size is already page aligned */
-	buf->sg_desc.num_pages = size >> PAGE_SHIFT;
-
-	buf->sg_desc.sglist = vzalloc(buf->sg_desc.num_pages *
-				      sizeof(*buf->sg_desc.sglist));
-	if (!buf->sg_desc.sglist)
-		goto fail_sglist_alloc;
-	sg_init_table(buf->sg_desc.sglist, buf->sg_desc.num_pages);
+	buf->num_pages = size >> PAGE_SHIFT;
 
-	buf->pages = kzalloc(buf->sg_desc.num_pages * sizeof(struct page *),
+	buf->pages = kzalloc(buf->num_pages * sizeof(struct page *),
 			     GFP_KERNEL);
 	if (!buf->pages)
 		goto fail_pages_array_alloc;
@@ -118,6 +111,11 @@ static void *vb2_dma_sg_alloc(void *alloc_ctx, unsigned long size, gfp_t gfp_fla
 	if (ret)
 		goto fail_pages_alloc;
 
+	ret = sg_alloc_table_from_pages(&buf->sg_table, buf->pages,
+			buf->num_pages, 0, size, gfp_flags);
+	if (ret)
+		goto fail_table_alloc;
+
 	buf->handler.refcount = &buf->refcount;
 	buf->handler.put = vb2_dma_sg_put;
 	buf->handler.arg = buf;
@@ -125,16 +123,16 @@ static void *vb2_dma_sg_alloc(void *alloc_ctx, unsigned long size, gfp_t gfp_fla
 	atomic_inc(&buf->refcount);
 
 	dprintk(1, "%s: Allocated buffer of %d pages\n",
-		__func__, buf->sg_desc.num_pages);
+		__func__, buf->num_pages);
 	return buf;
 
+fail_table_alloc:
+	num_pages = buf->num_pages;
+	while (num_pages--)
+		__free_page(buf->pages[num_pages]);
 fail_pages_alloc:
 	kfree(buf->pages);
-
 fail_pages_array_alloc:
-	vfree(buf->sg_desc.sglist);
-
-fail_sglist_alloc:
 	kfree(buf);
 	return NULL;
 }
@@ -142,14 +140,14 @@ fail_sglist_alloc:
 static void vb2_dma_sg_put(void *buf_priv)
 {
 	struct vb2_dma_sg_buf *buf = buf_priv;
-	int i = buf->sg_desc.num_pages;
+	int i = buf->num_pages;
 
 	if (atomic_dec_and_test(&buf->refcount)) {
 		dprintk(1, "%s: Freeing buffer of %d pages\n", __func__,
-			buf->sg_desc.num_pages);
+			buf->num_pages);
 		if (buf->vaddr)
-			vm_unmap_ram(buf->vaddr, buf->sg_desc.num_pages);
-		vfree(buf->sg_desc.sglist);
+			vm_unmap_ram(buf->vaddr, buf->num_pages);
+		sg_free_table(&buf->sg_table);
 		while (--i >= 0)
 			__free_page(buf->pages[i]);
 		kfree(buf->pages);
@@ -162,7 +160,7 @@ static void *vb2_dma_sg_get_userptr(void *alloc_ctx, unsigned long vaddr,
 {
 	struct vb2_dma_sg_buf *buf;
 	unsigned long first, last;
-	int num_pages_from_user, i;
+	int num_pages_from_user;
 
 	buf = kzalloc(sizeof *buf, GFP_KERNEL);
 	if (!buf)
@@ -171,56 +169,41 @@ static void *vb2_dma_sg_get_userptr(void *alloc_ctx, unsigned long vaddr,
 	buf->vaddr = NULL;
 	buf->write = write;
 	buf->offset = vaddr & ~PAGE_MASK;
-	buf->sg_desc.size = size;
+	buf->size = size;
 
 	first = (vaddr           & PAGE_MASK) >> PAGE_SHIFT;
 	last  = ((vaddr + size - 1) & PAGE_MASK) >> PAGE_SHIFT;
-	buf->sg_desc.num_pages = last - first + 1;
-
-	buf->sg_desc.sglist = vzalloc(
-		buf->sg_desc.num_pages * sizeof(*buf->sg_desc.sglist));
-	if (!buf->sg_desc.sglist)
-		goto userptr_fail_sglist_alloc;
+	buf->num_pages = last - first + 1;
 
-	sg_init_table(buf->sg_desc.sglist, buf->sg_desc.num_pages);
-
-	buf->pages = kzalloc(buf->sg_desc.num_pages * sizeof(struct page *),
+	buf->pages = kzalloc(buf->num_pages * sizeof(struct page *),
 			     GFP_KERNEL);
 	if (!buf->pages)
-		goto userptr_fail_pages_array_alloc;
+		return NULL;
 
 	num_pages_from_user = get_user_pages(current, current->mm,
 					     vaddr & PAGE_MASK,
-					     buf->sg_desc.num_pages,
+					     buf->num_pages,
 					     write,
 					     1, /* force */
 					     buf->pages,
 					     NULL);
 
-	if (num_pages_from_user != buf->sg_desc.num_pages)
+	if (num_pages_from_user != buf->num_pages)
 		goto userptr_fail_get_user_pages;
 
-	sg_set_page(&buf->sg_desc.sglist[0], buf->pages[0],
-		    PAGE_SIZE - buf->offset, buf->offset);
-	size -= PAGE_SIZE - buf->offset;
-	for (i = 1; i < buf->sg_desc.num_pages; ++i) {
-		sg_set_page(&buf->sg_desc.sglist[i], buf->pages[i],
-			    min_t(size_t, PAGE_SIZE, size), 0);
-		size -= min_t(size_t, PAGE_SIZE, size);
-	}
+	if (sg_alloc_table_from_pages(&buf->sg_table, buf->pages,
+			buf->num_pages, buf->offset, size, 0))
+		goto userptr_fail_alloc_table_from_pages;
+
 	return buf;
 
+userptr_fail_alloc_table_from_pages:
 userptr_fail_get_user_pages:
 	dprintk(1, "get_user_pages requested/got: %d/%d]\n",
-	       num_pages_from_user, buf->sg_desc.num_pages);
+	       num_pages_from_user, buf->num_pages);
 	while (--num_pages_from_user >= 0)
 		put_page(buf->pages[num_pages_from_user]);
 	kfree(buf->pages);
-
-userptr_fail_pages_array_alloc:
-	vfree(buf->sg_desc.sglist);
-
-userptr_fail_sglist_alloc:
 	kfree(buf);
 	return NULL;
 }
@@ -232,18 +215,18 @@ userptr_fail_sglist_alloc:
 static void vb2_dma_sg_put_userptr(void *buf_priv)
 {
 	struct vb2_dma_sg_buf *buf = buf_priv;
-	int i = buf->sg_desc.num_pages;
+	int i = buf->num_pages;
 
 	dprintk(1, "%s: Releasing userspace buffer of %d pages\n",
-	       __func__, buf->sg_desc.num_pages);
+	       __func__, buf->num_pages);
 	if (buf->vaddr)
-		vm_unmap_ram(buf->vaddr, buf->sg_desc.num_pages);
+		vm_unmap_ram(buf->vaddr, buf->num_pages);
+	sg_free_table(&buf->sg_table);
 	while (--i >= 0) {
 		if (buf->write)
 			set_page_dirty_lock(buf->pages[i]);
 		put_page(buf->pages[i]);
 	}
-	vfree(buf->sg_desc.sglist);
 	kfree(buf->pages);
 	kfree(buf);
 }
@@ -256,7 +239,7 @@ static void *vb2_dma_sg_vaddr(void *buf_priv)
 
 	if (!buf->vaddr)
 		buf->vaddr = vm_map_ram(buf->pages,
-					buf->sg_desc.num_pages,
+					buf->num_pages,
 					-1,
 					PAGE_KERNEL);
 
@@ -312,7 +295,7 @@ static void *vb2_dma_sg_cookie(void *buf_priv)
 {
 	struct vb2_dma_sg_buf *buf = buf_priv;
 
-	return &buf->sg_desc;
+	return &buf->sg_table;
 }
 
 const struct vb2_mem_ops vb2_dma_sg_memops = {
diff --git a/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c b/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
index a4c589604b02..9a6d5c0b1339 100644
--- a/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
+++ b/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
@@ -346,7 +346,7 @@ static int enc_get_mpeg_dma(struct solo_dev *solo_dev, dma_addr_t dma,
 /* Build a descriptor queue out of an SG list and send it to the P2M for
  * processing. */
 static int solo_send_desc(struct solo_enc_dev *solo_enc, int skip,
-			  struct vb2_dma_sg_desc *vbuf, int off, int size,
+			  struct sg_table *vbuf, int off, int size,
 			  unsigned int base, unsigned int base_size)
 {
 	struct solo_dev *solo_dev = solo_enc->solo_dev;
@@ -359,7 +359,7 @@ static int solo_send_desc(struct solo_enc_dev *solo_enc, int skip,
 
 	solo_enc->desc_count = 1;
 
-	for_each_sg(vbuf->sglist, sg, vbuf->num_pages, i) {
+	for_each_sg(vbuf->sgl, sg, vbuf->nents, i) {
 		struct solo_p2m_desc *desc;
 		dma_addr_t dma;
 		int len;
@@ -434,7 +434,7 @@ static int solo_fill_jpeg(struct solo_enc_dev *solo_enc,
 		struct vb2_buffer *vb, struct vop_header *vh)
 {
 	struct solo_dev *solo_dev = solo_enc->solo_dev;
-	struct vb2_dma_sg_desc *vbuf = vb2_dma_sg_plane_desc(vb, 0);
+	struct sg_table *vbuf = vb2_dma_sg_plane_desc(vb, 0);
 	int frame_size;
 	int ret;
 
@@ -443,7 +443,7 @@ static int solo_fill_jpeg(struct solo_enc_dev *solo_enc,
 	if (vb2_plane_size(vb, 0) < vh->jpeg_size + solo_enc->jpeg_len)
 		return -EIO;
 
-	sg_copy_from_buffer(vbuf->sglist, vbuf->num_pages,
+	sg_copy_from_buffer(vbuf->sgl, vbuf->nents,
 			solo_enc->jpeg_header,
 			solo_enc->jpeg_len);
 
@@ -451,12 +451,12 @@ static int solo_fill_jpeg(struct solo_enc_dev *solo_enc,
 		& ~(DMA_ALIGN - 1);
 	vb2_set_plane_payload(vb, 0, vh->jpeg_size + solo_enc->jpeg_len);
 
-	dma_map_sg(&solo_dev->pdev->dev, vbuf->sglist, vbuf->num_pages,
+	dma_map_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents,
 			DMA_FROM_DEVICE);
 	ret = solo_send_desc(solo_enc, solo_enc->jpeg_len, vbuf, vh->jpeg_off,
 			frame_size, SOLO_JPEG_EXT_ADDR(solo_dev),
 			SOLO_JPEG_EXT_SIZE(solo_dev));
-	dma_unmap_sg(&solo_dev->pdev->dev, vbuf->sglist, vbuf->num_pages,
+	dma_unmap_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents,
 			DMA_FROM_DEVICE);
 	return ret;
 }
@@ -465,7 +465,7 @@ static int solo_fill_mpeg(struct solo_enc_dev *solo_enc,
 		struct vb2_buffer *vb, struct vop_header *vh)
 {
 	struct solo_dev *solo_dev = solo_enc->solo_dev;
-	struct vb2_dma_sg_desc *vbuf = vb2_dma_sg_plane_desc(vb, 0);
+	struct sg_table *vbuf = vb2_dma_sg_plane_desc(vb, 0);
 	int frame_off, frame_size;
 	int skip = 0;
 	int ret;
@@ -475,7 +475,7 @@ static int solo_fill_mpeg(struct solo_enc_dev *solo_enc,
 
 	/* If this is a key frame, add extra header */
 	if (!vh->vop_type) {
-		sg_copy_from_buffer(vbuf->sglist, vbuf->num_pages,
+		sg_copy_from_buffer(vbuf->sgl, vbuf->nents,
 				solo_enc->vop,
 				solo_enc->vop_len);
 
@@ -494,12 +494,12 @@ static int solo_fill_mpeg(struct solo_enc_dev *solo_enc,
 	frame_size = (vh->mpeg_size + skip + (DMA_ALIGN - 1))
 		& ~(DMA_ALIGN - 1);
 
-	dma_map_sg(&solo_dev->pdev->dev, vbuf->sglist, vbuf->num_pages,
+	dma_map_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents,
 			DMA_FROM_DEVICE);
 	ret = solo_send_desc(solo_enc, skip, vbuf, frame_off, frame_size,
 			SOLO_MP4E_EXT_ADDR(solo_dev),
 			SOLO_MP4E_EXT_SIZE(solo_dev));
-	dma_unmap_sg(&solo_dev->pdev->dev, vbuf->sglist, vbuf->num_pages,
+	dma_unmap_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents,
 			DMA_FROM_DEVICE);
 	return ret;
 }
diff --git a/include/media/videobuf2-dma-sg.h b/include/media/videobuf2-dma-sg.h
index 0038526b8ef7..7b89852779af 100644
--- a/include/media/videobuf2-dma-sg.h
+++ b/include/media/videobuf2-dma-sg.h
@@ -15,16 +15,10 @@
 
 #include <media/videobuf2-core.h>
 
-struct vb2_dma_sg_desc {
-	unsigned long		size;
-	unsigned int		num_pages;
-	struct scatterlist	*sglist;
-};
-
-static inline struct vb2_dma_sg_desc *vb2_dma_sg_plane_desc(
+static inline struct sg_table *vb2_dma_sg_plane_desc(
 		struct vb2_buffer *vb, unsigned int plane_no)
 {
-	return (struct vb2_dma_sg_desc *)vb2_plane_cookie(vb, plane_no);
+	return (struct sg_table *)vb2_plane_cookie(vb, plane_no);
 }
 
 extern const struct vb2_mem_ops vb2_dma_sg_memops;
-- 
cgit 


From 2484a7e2bdb4ed50393fa57075d43ca67801fe06 Mon Sep 17 00:00:00 2001
From: Seung-Woo Kim <sw0312.kim@samsung.com>
Date: Tue, 20 Aug 2013 04:48:06 -0300
Subject: [media] videobuf2: Add log for size checking error in __qbuf_userptr

__qbuf_userptr checks whether provided buffer is large enough, and
it returns error without any log.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Heejin Woo <heejin.woo@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/v4l2-core/videobuf2-core.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index 67ddadd5ea38..ba389f58eec7 100644
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -1013,6 +1013,10 @@ static int __qbuf_userptr(struct vb2_buffer *vb, const struct v4l2_buffer *b)
 
 		/* Check if the provided plane buffer is large enough */
 		if (planes[plane].length < q->plane_sizes[plane]) {
+			dprintk(1, "qbuf: provided buffer size %u is less than "
+						"setup size %u for plane %d\n",
+						planes[plane].length,
+						q->plane_sizes[plane], plane);
 			ret = -EINVAL;
 			goto err;
 		}
-- 
cgit 


From 3a9621b0c5428c5e9a3ef217ed4921046de1b021 Mon Sep 17 00:00:00 2001
From: Sylwester Nawrocki <s.nawrocki@samsung.com>
Date: Mon, 26 Aug 2013 11:47:53 -0300
Subject: [media] videobuf2: Add debug print for the output buffer plane
 lengths checks

Add debug print so it's easier to find any errors resulting from
the planes' configuration checks added in commit 8023ed09cb278004a2
"videobuf2-core: Verify planes lengths for output buffers".

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/v4l2-core/videobuf2-core.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index ba389f58eec7..fc8af507beac 100644
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -1207,8 +1207,11 @@ static int __buf_prepare(struct vb2_buffer *vb, const struct v4l2_buffer *b)
 	int ret;
 
 	ret = __verify_length(vb, b);
-	if (ret < 0)
+	if (ret < 0) {
+		dprintk(1, "%s(): plane parameters verification failed: %d\n",
+			__func__, ret);
 		return ret;
+	}
 
 	switch (q->memory) {
 	case V4L2_MEMORY_MMAP:
-- 
cgit 


From 247263dba208fab08c7f49900a9c79adaae1176e Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 24 Sep 2013 13:23:00 +0900
Subject: spi: bcm2835: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler,
and remove a duplicate put.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-bcm2835.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c
index 52c81481c5c7..4c332143a310 100644
--- a/drivers/spi/spi-bcm2835.c
+++ b/drivers/spi/spi-bcm2835.c
@@ -358,7 +358,7 @@ static int bcm2835_spi_probe(struct platform_device *pdev)
 	bcm2835_wr(bs, BCM2835_SPI_CS,
 		   BCM2835_SPI_CS_CLEAR_RX | BCM2835_SPI_CS_CLEAR_TX);
 
-	err = spi_register_master(master);
+	err = devm_spi_register_master(&pdev->dev, master);
 	if (err) {
 		dev_err(&pdev->dev, "could not register SPI master: %d\n", err);
 		goto out_free_irq;
@@ -381,14 +381,12 @@ static int bcm2835_spi_remove(struct platform_device *pdev)
 	struct bcm2835_spi *bs = spi_master_get_devdata(master);
 
 	free_irq(bs->irq, master);
-	spi_unregister_master(master);
 
 	/* Clear FIFOs, and disable the HW block */
 	bcm2835_wr(bs, BCM2835_SPI_CS,
 		   BCM2835_SPI_CS_CLEAR_RX | BCM2835_SPI_CS_CLEAR_TX);
 
 	clk_disable_unprepare(bs->clk);
-	spi_master_put(master);
 
 	return 0;
 }
-- 
cgit 


From bca76931b934ad323c56d9aab7a74139306d18bf Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 24 Sep 2013 13:24:57 +0900
Subject: spi: bcm63xx: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler,
and remove a duplicate put.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-bcm63xx.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c
index 536b0e363826..80d56b214eb5 100644
--- a/drivers/spi/spi-bcm63xx.c
+++ b/drivers/spi/spi-bcm63xx.c
@@ -412,7 +412,7 @@ static int bcm63xx_spi_probe(struct platform_device *pdev)
 	bcm_spi_writeb(bs, SPI_INTR_CLEAR_ALL, SPI_INT_STATUS);
 
 	/* register and we are done */
-	ret = spi_register_master(master);
+	ret = devm_spi_register_master(dev, master);
 	if (ret) {
 		dev_err(dev, "spi register failed\n");
 		goto out_clk_disable;
@@ -438,8 +438,6 @@ static int bcm63xx_spi_remove(struct platform_device *pdev)
 	struct spi_master *master = spi_master_get(platform_get_drvdata(pdev));
 	struct bcm63xx_spi *bs = spi_master_get_devdata(master);
 
-	spi_unregister_master(master);
-
 	/* reset spi block */
 	bcm_spi_writeb(bs, 0, SPI_INT_MASK);
 
@@ -447,8 +445,6 @@ static int bcm63xx_spi_remove(struct platform_device *pdev)
 	clk_disable_unprepare(bs->clk);
 	clk_put(bs->clk);
 
-	spi_master_put(master);
-
 	return 0;
 }
 
-- 
cgit 


From 6221df6d88b847da0803b2ced7826f005e62c837 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 24 Sep 2013 13:26:30 +0900
Subject: spi: bfin-v3: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-bfin-v3.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/spi/spi-bfin-v3.c b/drivers/spi/spi-bfin-v3.c
index f4bf81347d68..8f8598834b30 100644
--- a/drivers/spi/spi-bfin-v3.c
+++ b/drivers/spi/spi-bfin-v3.c
@@ -867,7 +867,7 @@ static int bfin_spi_probe(struct platform_device *pdev)
 	tasklet_init(&drv_data->pump_transfers,
 			bfin_spi_pump_transfers, (unsigned long)drv_data);
 	/* register with the SPI framework */
-	ret = spi_register_master(master);
+	ret = devm_spi_register_master(dev, master);
 	if (ret) {
 		dev_err(dev, "can not  register spi master\n");
 		goto err_free_peripheral;
@@ -898,7 +898,6 @@ static int bfin_spi_remove(struct platform_device *pdev)
 	free_dma(drv_data->rx_dma);
 	free_dma(drv_data->tx_dma);
 
-	spi_unregister_master(drv_data->master);
 	return 0;
 }
 
-- 
cgit 


From c493fc4bbd4f27b1a8a141648df866c386441b70 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 24 Sep 2013 13:27:48 +0900
Subject: spi: clps711x: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-clps711x.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/spi/spi-clps711x.c b/drivers/spi/spi-clps711x.c
index b597a92565dc..f2b1a1c33907 100644
--- a/drivers/spi/spi-clps711x.c
+++ b/drivers/spi/spi-clps711x.c
@@ -230,7 +230,7 @@ static int spi_clps711x_probe(struct platform_device *pdev)
 		goto clk_out;
 	}
 
-	ret = spi_register_master(master);
+	ret = devm_spi_register_master(&pdev->dev, master);
 	if (!ret) {
 		dev_info(&pdev->dev,
 			 "SPI bus driver initialized. Master clock %u Hz\n",
@@ -261,8 +261,6 @@ static int spi_clps711x_remove(struct platform_device *pdev)
 		if (gpio_is_valid(hw->chipselect[i]))
 			gpio_free(hw->chipselect[i]);
 
-	spi_unregister_master(master);
-
 	return 0;
 }
 
-- 
cgit 


From 434eaf3b231125c73450bbc6ebe2396b9b63aa2f Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 24 Sep 2013 13:30:41 +0900
Subject: spi: ep93xx: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-ep93xx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/spi/spi-ep93xx.c b/drivers/spi/spi-ep93xx.c
index d22c00a227b6..486fb6deab05 100644
--- a/drivers/spi/spi-ep93xx.c
+++ b/drivers/spi/spi-ep93xx.c
@@ -942,7 +942,7 @@ static int ep93xx_spi_probe(struct platform_device *pdev)
 	/* make sure that the hardware is disabled */
 	ep93xx_spi_write_u8(espi, SSPCR1, 0);
 
-	error = spi_register_master(master);
+	error = devm_spi_register_master(&pdev->dev, master);
 	if (error) {
 		dev_err(&pdev->dev, "failed to register SPI master\n");
 		goto fail_free_dma;
@@ -968,7 +968,6 @@ static int ep93xx_spi_remove(struct platform_device *pdev)
 
 	ep93xx_spi_release_dma(espi);
 
-	spi_unregister_master(master);
 	return 0;
 }
 
-- 
cgit 


From eaa24297846bcdd98cefd52937ed88046a121ebc Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 24 Sep 2013 13:31:50 +0900
Subject: spi: mpc512x: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler,
and remove a duplicate put.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-mpc512x-psc.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c
index dbc5e999a1f5..b4426dd8a0c3 100644
--- a/drivers/spi/spi-mpc512x-psc.c
+++ b/drivers/spi/spi-mpc512x-psc.c
@@ -534,7 +534,7 @@ static int mpc512x_psc_spi_do_probe(struct device *dev, u32 regaddr,
 	if (ret < 0)
 		goto free_clock;
 
-	ret = spi_register_master(master);
+	ret = devm_spi_register_master(dev, master);
 	if (ret < 0)
 		goto free_clock;
 
@@ -557,12 +557,10 @@ static int mpc512x_psc_spi_do_remove(struct device *dev)
 	struct spi_master *master = spi_master_get(dev_get_drvdata(dev));
 	struct mpc512x_psc_spi *mps = spi_master_get_devdata(master);
 
-	spi_unregister_master(master);
 	clk_disable_unprepare(mps->clk_mclk);
 	free_irq(mps->irq, mps);
 	if (mps->psc)
 		iounmap(mps->psc);
-	spi_master_put(master);
 
 	return 0;
 }
-- 
cgit 


From 33e195acf2682627d9f4d9fb9c30a5dd5323bc5c Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 24 Sep 2013 13:32:56 +0900
Subject: spi: mxs: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler,
and remove a duplicate put.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-mxs.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index de7b1141b90f..312c7f99c4a7 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -571,7 +571,7 @@ static int mxs_spi_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, master);
 
-	ret = spi_register_master(master);
+	ret = devm_spi_register_master(&pdev->dev, master);
 	if (ret) {
 		dev_err(&pdev->dev, "Cannot register SPI master, %d\n", ret);
 		goto out_disable_clk;
@@ -598,10 +598,8 @@ static int mxs_spi_remove(struct platform_device *pdev)
 	spi = spi_master_get_devdata(master);
 	ssp = &spi->ssp;
 
-	spi_unregister_master(master);
 	clk_disable_unprepare(ssp->clk);
 	dma_release_channel(ssp->dmach);
-	spi_master_put(master);
 
 	return 0;
 }
-- 
cgit 


From 22ad2d8df77d1e88996d0e8f1c04db65f235a778 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 24 Sep 2013 13:34:24 +0900
Subject: spi: octeon: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-octeon.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/spi/spi-octeon.c b/drivers/spi/spi-octeon.c
index 5f28ddbe4f7e..67249a48b391 100644
--- a/drivers/spi/spi-octeon.c
+++ b/drivers/spi/spi-octeon.c
@@ -272,7 +272,7 @@ static int octeon_spi_probe(struct platform_device *pdev)
 	master->bits_per_word_mask = SPI_BPW_MASK(8);
 
 	master->dev.of_node = pdev->dev.of_node;
-	err = spi_register_master(master);
+	err = devm_spi_register_master(&pdev->dev, master);
 	if (err) {
 		dev_err(&pdev->dev, "register master failed: %d\n", err);
 		goto fail;
@@ -292,8 +292,6 @@ static int octeon_spi_remove(struct platform_device *pdev)
 	struct octeon_spi *p = spi_master_get_devdata(master);
 	u64 register_base = p->register_base;
 
-	spi_unregister_master(master);
-
 	/* Clear the CSENA* and put everything in a known state. */
 	cvmx_write_csr(register_base + OCTEON_SPI_CFG, 0);
 
-- 
cgit 


From 5c4c5c7be116b0cce2e71173158060afac4144d0 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 24 Sep 2013 13:37:23 +0900
Subject: spi: omap-100k: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-omap-100k.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/spi/spi-omap-100k.c b/drivers/spi/spi-omap-100k.c
index 69ecf05757dd..b6ed82beb01d 100644
--- a/drivers/spi/spi-omap-100k.c
+++ b/drivers/spi/spi-omap-100k.c
@@ -457,7 +457,7 @@ static int omap1_spi100k_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	status = spi_register_master(master);
+	status = devm_spi_register_master(&pdev->dev, master);
 	if (status < 0)
 		goto err;
 
@@ -485,8 +485,6 @@ static int omap1_spi100k_remove(struct platform_device *pdev)
 
 	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-	spi_unregister_master(master);
-
 	return 0;
 }
 
-- 
cgit 


From b95e02b748ce3674a81d5796b5ee398cbccc92df Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 24 Sep 2013 13:40:29 +0900
Subject: spi: omap2-mcspi: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-omap2-mcspi.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c
index ed4af4708d9a..2f7fd35a9ac8 100644
--- a/drivers/spi/spi-omap2-mcspi.c
+++ b/drivers/spi/spi-omap2-mcspi.c
@@ -1407,7 +1407,7 @@ static int omap2_mcspi_probe(struct platform_device *pdev)
 	if (status < 0)
 		goto disable_pm;
 
-	status = spi_register_master(master);
+	status = devm_spi_register_master(&pdev->dev, master);
 	if (status < 0)
 		goto disable_pm;
 
@@ -1435,7 +1435,6 @@ static int omap2_mcspi_remove(struct platform_device *pdev)
 	pm_runtime_put_sync(mcspi->dev);
 	pm_runtime_disable(&pdev->dev);
 
-	spi_unregister_master(master);
 	kfree(dma_channels);
 
 	return 0;
-- 
cgit 


From 4bd3d8e36b5571db8874ea95ba2b95de1192e387 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 24 Sep 2013 13:43:09 +0900
Subject: spi: orion: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-orion.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/spi/spi-orion.c b/drivers/spi/spi-orion.c
index 1d1d321d90c4..d96d67869d7b 100644
--- a/drivers/spi/spi-orion.c
+++ b/drivers/spi/spi-orion.c
@@ -457,7 +457,7 @@ static int orion_spi_probe(struct platform_device *pdev)
 		goto out_rel_clk;
 
 	master->dev.of_node = pdev->dev.of_node;
-	status = spi_register_master(master);
+	status = devm_spi_register_master(&pdev->dev, master);
 	if (status < 0)
 		goto out_rel_clk;
 
@@ -483,8 +483,6 @@ static int orion_spi_remove(struct platform_device *pdev)
 	clk_disable_unprepare(spi->clk);
 	clk_put(spi->clk);
 
-	spi_unregister_master(master);
-
 	return 0;
 }
 
-- 
cgit 


From 35794a77168b739bbc758b6c5b11c78572188d77 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 24 Sep 2013 13:44:59 +0900
Subject: spi: pl022: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-pl022.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index c13d523f1f48..5e3011094eb6 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -2225,7 +2225,7 @@ static int pl022_probe(struct amba_device *adev, const struct amba_id *id)
 
 	/* Register with the SPI framework */
 	amba_set_drvdata(adev, pl022);
-	status = spi_register_master(master);
+	status = devm_spi_register_master(&adev->dev, master);
 	if (status != 0) {
 		dev_err(&adev->dev,
 			"probe - problem registering spi master\n");
@@ -2285,7 +2285,6 @@ pl022_remove(struct amba_device *adev)
 	clk_unprepare(pl022->clk);
 	amba_release_regions(adev);
 	tasklet_disable(&pl022->pump_transfers);
-	spi_unregister_master(pl022->master);
 	return 0;
 }
 
-- 
cgit 


From a807fcd090d6e778717d0954fc6a58a72ee16ba0 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 24 Sep 2013 13:46:55 +0900
Subject: spi: pxa2xx: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-pxa2xx.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 2eb06ee0b326..669306aa6c29 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1196,7 +1196,7 @@ static int pxa2xx_spi_probe(struct platform_device *pdev)
 
 	/* Register with the SPI framework */
 	platform_set_drvdata(pdev, drv_data);
-	status = spi_register_master(master);
+	status = devm_spi_register_master(&pdev->dev, master);
 	if (status != 0) {
 		dev_err(&pdev->dev, "problem registering spi master\n");
 		goto out_error_clock_enabled;
@@ -1248,9 +1248,6 @@ static int pxa2xx_spi_remove(struct platform_device *pdev)
 	/* Release SSP */
 	pxa_ssp_free(ssp);
 
-	/* Disconnect from the SPI framework */
-	spi_unregister_master(drv_data->master);
-
 	return 0;
 }
 
-- 
cgit 


From 1c43f2ae1ee3b04f7466e31a59b19b7fa5fe4fc2 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 24 Sep 2013 13:47:59 +0900
Subject: spi: sh-hspi: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-sh-hspi.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/spi/spi-sh-hspi.c b/drivers/spi/spi-sh-hspi.c
index 0b68cb592fa4..97e913d225f3 100644
--- a/drivers/spi/spi-sh-hspi.c
+++ b/drivers/spi/spi-sh-hspi.c
@@ -303,7 +303,7 @@ static int hspi_probe(struct platform_device *pdev)
 	master->mode_bits	= SPI_CPOL | SPI_CPHA;
 	master->auto_runtime_pm = true;
 	master->transfer_one_message		= hspi_transfer_one_message;
-	ret = spi_register_master(master);
+	ret = devm_spi_register_master(&pdev->dev, master);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "spi_register_master error.\n");
 		goto error1;
@@ -328,7 +328,6 @@ static int hspi_remove(struct platform_device *pdev)
 	pm_runtime_disable(&pdev->dev);
 
 	clk_put(hspi->clk);
-	spi_unregister_master(hspi->master);
 
 	return 0;
 }
-- 
cgit 


From 5c8096439600de88a7ceded70cc86b817d4a548e Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 24 Sep 2013 13:49:24 +0900
Subject: spi: tegra114: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-tegra114.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/spi/spi-tegra114.c b/drivers/spi/spi-tegra114.c
index 145dd435483b..bb3a19f2ed39 100644
--- a/drivers/spi/spi-tegra114.c
+++ b/drivers/spi/spi-tegra114.c
@@ -1115,7 +1115,7 @@ static int tegra_spi_probe(struct platform_device *pdev)
 	pm_runtime_put(&pdev->dev);
 
 	master->dev.of_node = pdev->dev.of_node;
-	ret = spi_register_master(master);
+	ret = devm_spi_register_master(&pdev->dev, master);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "can not register to master err %d\n", ret);
 		goto exit_pm_disable;
@@ -1142,7 +1142,6 @@ static int tegra_spi_remove(struct platform_device *pdev)
 	struct tegra_spi_data	*tspi = spi_master_get_devdata(master);
 
 	free_irq(tspi->irq, tspi);
-	spi_unregister_master(master);
 
 	if (tspi->tx_dma_chan)
 		tegra_spi_deinit_dma_param(tspi, false);
-- 
cgit 


From f12f7318c44aa5ea1672f9a356de02a8739b6892 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 24 Sep 2013 13:50:25 +0900
Subject: spi: tegra20-sflash: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-tegra20-sflash.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/spi/spi-tegra20-sflash.c b/drivers/spi/spi-tegra20-sflash.c
index 1d814dc6e000..a68d7797a8ec 100644
--- a/drivers/spi/spi-tegra20-sflash.c
+++ b/drivers/spi/spi-tegra20-sflash.c
@@ -529,7 +529,7 @@ static int tegra_sflash_probe(struct platform_device *pdev)
 	pm_runtime_put(&pdev->dev);
 
 	master->dev.of_node = pdev->dev.of_node;
-	ret = spi_register_master(master);
+	ret = devm_spi_register_master(&pdev->dev, master);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "can not register to master err %d\n", ret);
 		goto exit_pm_disable;
@@ -553,7 +553,6 @@ static int tegra_sflash_remove(struct platform_device *pdev)
 	struct tegra_sflash_data	*tsd = spi_master_get_devdata(master);
 
 	free_irq(tsd->irq, tsd);
-	spi_unregister_master(master);
 
 	pm_runtime_disable(&pdev->dev);
 	if (!pm_runtime_status_suspended(&pdev->dev))
-- 
cgit 


From 716db5d64f5f9bd6600cd4f85c2986d34cd7f60e Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 24 Sep 2013 13:51:32 +0900
Subject: spi: tegra20-slink: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-tegra20-slink.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c
index c70353672a23..829283e785d9 100644
--- a/drivers/spi/spi-tegra20-slink.c
+++ b/drivers/spi/spi-tegra20-slink.c
@@ -1164,7 +1164,7 @@ static int tegra_slink_probe(struct platform_device *pdev)
 	pm_runtime_put(&pdev->dev);
 
 	master->dev.of_node = pdev->dev.of_node;
-	ret = spi_register_master(master);
+	ret = devm_spi_register_master(&pdev->dev, master);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "can not register to master err %d\n", ret);
 		goto exit_pm_disable;
@@ -1191,7 +1191,6 @@ static int tegra_slink_remove(struct platform_device *pdev)
 	struct tegra_slink_data	*tspi = spi_master_get_devdata(master);
 
 	free_irq(tspi->irq, tspi);
-	spi_unregister_master(master);
 
 	if (tspi->tx_dma_chan)
 		tegra_slink_deinit_dma_param(tspi, false);
-- 
cgit 


From 7388c03bac1b4466864945233abf3ca8ba1cb061 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 24 Sep 2013 13:52:37 +0900
Subject: spi: ti-qspi: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler,
and remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-ti-qspi.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c
index e12d962a289f..4e2109d9853d 100644
--- a/drivers/spi/spi-ti-qspi.c
+++ b/drivers/spi/spi-ti-qspi.c
@@ -532,7 +532,7 @@ static int ti_qspi_probe(struct platform_device *pdev)
 	if (!of_property_read_u32(np, "spi-max-frequency", &max_freq))
 		qspi->spi_max_frequency = max_freq;
 
-	ret = spi_register_master(master);
+	ret = devm_spi_register_master(&pdev->dev, master);
 	if (ret)
 		goto free_master;
 
@@ -543,22 +543,12 @@ free_master:
 	return ret;
 }
 
-static int ti_qspi_remove(struct platform_device *pdev)
-{
-	struct	ti_qspi *qspi = platform_get_drvdata(pdev);
-
-	spi_unregister_master(qspi->master);
-
-	return 0;
-}
-
 static const struct dev_pm_ops ti_qspi_pm_ops = {
 	.runtime_resume = ti_qspi_runtime_resume,
 };
 
 static struct platform_driver ti_qspi_driver = {
 	.probe	= ti_qspi_probe,
-	.remove	= ti_qspi_remove,
 	.driver = {
 		.name	= "ti,dra7xxx-qspi",
 		.owner	= THIS_MODULE,
-- 
cgit 


From 2fe7e4add3e53df7c1b97e32076f8390dd81c6b3 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 24 Sep 2013 13:53:37 +0900
Subject: spi: txx9: use devm_spi_register_master()

Use devm_spi_register_master() to make cleanup paths simpler,
and remove a duplicate put.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-txx9.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/spi/spi-txx9.c b/drivers/spi/spi-txx9.c
index 7c6d15766c72..69eb88627d40 100644
--- a/drivers/spi/spi-txx9.c
+++ b/drivers/spi/spi-txx9.c
@@ -406,7 +406,7 @@ static int txx9spi_probe(struct platform_device *dev)
 	master->num_chipselect = (u16)UINT_MAX; /* any GPIO numbers */
 	master->bits_per_word_mask = SPI_BPW_MASK(8) | SPI_BPW_MASK(16);
 
-	ret = spi_register_master(master);
+	ret = devm_spi_register_master(&dev->dev, master);
 	if (ret)
 		goto exit;
 	return 0;
@@ -428,11 +428,9 @@ static int txx9spi_remove(struct platform_device *dev)
 	struct spi_master *master = spi_master_get(platform_get_drvdata(dev));
 	struct txx9spi *c = spi_master_get_devdata(master);
 
-	spi_unregister_master(master);
 	destroy_workqueue(c->workqueue);
 	clk_disable(c->clk);
 	clk_put(c->clk);
-	spi_master_put(master);
 	return 0;
 }
 
-- 
cgit 


From a36bf192553912dc28230fb852ad13ef078e28a9 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 12:02:10 +0530
Subject: video: atmel_lcdfb: Remove redundant dev_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/atmel_lcdfb.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index df05550b82e6..3f7d6dc3408d 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -1089,7 +1089,7 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev)
 	ret = register_framebuffer(info);
 	if (ret < 0) {
 		dev_err(dev, "failed to register framebuffer device: %d\n", ret);
-		goto reset_drvdata;
+		goto free_cmap;
 	}
 
 	/* add selected videomode to modelist */
@@ -1105,8 +1105,6 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev)
 
 	return 0;
 
-reset_drvdata:
-	dev_set_drvdata(dev, NULL);
 free_cmap:
 	fb_dealloc_cmap(&info->cmap);
 unregister_irqs:
@@ -1167,7 +1165,6 @@ static int __exit atmel_lcdfb_remove(struct platform_device *pdev)
 		atmel_lcdfb_free_video_memory(sinfo);
 	}
 
-	dev_set_drvdata(dev, NULL);
 	framebuffer_release(info);
 
 	return 0;
-- 
cgit 


From 22b67c0ab2e7480cc4b5ad1ca59ab0e4e0967556 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 12:02:11 +0530
Subject: video: grvga: Remove redundant dev_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Kristoffer Glembo <kristoffer@gaisler.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/grvga.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/grvga.c b/drivers/video/grvga.c
index b95eee7d901e..c078701f15f6 100644
--- a/drivers/video/grvga.c
+++ b/drivers/video/grvga.c
@@ -496,7 +496,6 @@ static int grvga_probe(struct platform_device *dev)
 	return 0;
 
 free_mem:
-	dev_set_drvdata(&dev->dev, NULL);
 	if (grvga_fix_addr)
 		iounmap((void *)virtual_start);
 	else
@@ -530,7 +529,6 @@ static int grvga_remove(struct platform_device *device)
 			kfree((void *)info->screen_base);
 
 		framebuffer_release(info);
-		dev_set_drvdata(&device->dev, NULL);
 	}
 
 	return 0;
-- 
cgit 


From 064f29e00ab17ee75ffe7bd60721284b5a3d5f35 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 12:02:12 +0530
Subject: video: leo: Remove redundant dev_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/leo.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/leo.c b/drivers/video/leo.c
index b17f5009a436..c0f61aa37696 100644
--- a/drivers/video/leo.c
+++ b/drivers/video/leo.c
@@ -648,8 +648,6 @@ static int leo_remove(struct platform_device *op)
 
 	framebuffer_release(info);
 
-	dev_set_drvdata(&op->dev, NULL);
-
 	return 0;
 }
 
-- 
cgit 


From 74a7b36259fe00d98db6ca4c779960d08c397f4a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 12:02:13 +0530
Subject: video: mb862xx: Remove redundant dev_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/mb862xx/mb862xxfbdrv.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/mb862xx/mb862xxfbdrv.c b/drivers/video/mb862xx/mb862xxfbdrv.c
index 98d2f8c2ed75..0cd4c3318511 100644
--- a/drivers/video/mb862xx/mb862xxfbdrv.c
+++ b/drivers/video/mb862xx/mb862xxfbdrv.c
@@ -781,7 +781,6 @@ rel_reg:
 irqdisp:
 	irq_dispose_mapping(par->irq);
 fbrel:
-	dev_set_drvdata(dev, NULL);
 	framebuffer_release(info);
 	return ret;
 }
@@ -814,7 +813,6 @@ static int of_platform_mb862xx_remove(struct platform_device *ofdev)
 	iounmap(par->mmio_base);
 	iounmap(par->fb_base);
 
-	dev_set_drvdata(&ofdev->dev, NULL);
 	release_mem_region(par->res->start, res_size);
 	framebuffer_release(fbi);
 	return 0;
-- 
cgit 


From bc4626fc87dcc53fc4e0880f818eb269326ac4fb Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 12:02:14 +0530
Subject: video: amifb: Remove redundant dev_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/amifb.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/amifb.c b/drivers/video/amifb.c
index a6780eecff0e..8ab304d1c855 100644
--- a/drivers/video/amifb.c
+++ b/drivers/video/amifb.c
@@ -3748,7 +3748,6 @@ default_chipset:
 	return 0;
 
 unset_drvdata:
-	dev_set_drvdata(&pdev->dev, NULL);
 	fb_dealloc_cmap(&info->cmap);
 free_irq:
 	free_irq(IRQ_AMIGA_COPPER, info->par);
@@ -3768,7 +3767,6 @@ static int __exit amifb_remove(struct platform_device *pdev)
 	struct fb_info *info = dev_get_drvdata(&pdev->dev);
 
 	unregister_framebuffer(info);
-	dev_set_drvdata(&pdev->dev, NULL);
 	fb_dealloc_cmap(&info->cmap);
 	free_irq(IRQ_AMIGA_COPPER, info->par);
 	custom.dmacon = DMAF_ALL | DMAF_MASTER;
-- 
cgit 


From 5fb4baeab614a97d656d1049829a05cc4ae95875 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 12:02:15 +0530
Subject: video: bw2: Remove redundant dev_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/bw2.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/bw2.c b/drivers/video/bw2.c
index 60017fc634b5..bc123d6947a4 100644
--- a/drivers/video/bw2.c
+++ b/drivers/video/bw2.c
@@ -363,8 +363,6 @@ static int bw2_remove(struct platform_device *op)
 
 	framebuffer_release(info);
 
-	dev_set_drvdata(&op->dev, NULL);
-
 	return 0;
 }
 
-- 
cgit 


From b3a4f58dbdcf51587d6a5429066a8d2e7582380d Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 12:02:16 +0530
Subject: video: cg14: Remove redundant dev_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/cg14.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/cg14.c b/drivers/video/cg14.c
index ed3b8891e006..9626488a69c5 100644
--- a/drivers/video/cg14.c
+++ b/drivers/video/cg14.c
@@ -583,8 +583,6 @@ static int cg14_remove(struct platform_device *op)
 
 	framebuffer_release(info);
 
-	dev_set_drvdata(&op->dev, NULL);
-
 	return 0;
 }
 
-- 
cgit 


From 3d2ae2dc9e58abd9a92e686231b17476a3ace2ce Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 12:02:17 +0530
Subject: video: cg3: Remove redundant dev_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/cg3.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/cg3.c b/drivers/video/cg3.c
index 9f63507ded37..64a89d5747ed 100644
--- a/drivers/video/cg3.c
+++ b/drivers/video/cg3.c
@@ -446,8 +446,6 @@ static int cg3_remove(struct platform_device *op)
 
 	framebuffer_release(info);
 
-	dev_set_drvdata(&op->dev, NULL);
-
 	return 0;
 }
 
-- 
cgit 


From d2b800c0c99e9fbeabdf8b14adfcf6db2e6e0784 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 12:02:18 +0530
Subject: video: cg6: Remove redundant dev_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/cg6.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/cg6.c b/drivers/video/cg6.c
index 3545decc7485..f070ec3b0f0a 100644
--- a/drivers/video/cg6.c
+++ b/drivers/video/cg6.c
@@ -839,8 +839,6 @@ static int cg6_remove(struct platform_device *op)
 
 	framebuffer_release(info);
 
-	dev_set_drvdata(&op->dev, NULL);
-
 	return 0;
 }
 
-- 
cgit 


From 38710d409b30730df7e2614e959b0061a7412250 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 12:02:19 +0530
Subject: video: ffb: Remove redundant dev_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/ffb.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/ffb.c b/drivers/video/ffb.c
index 6d2744794dd1..4c4ffa61ae26 100644
--- a/drivers/video/ffb.c
+++ b/drivers/video/ffb.c
@@ -1035,8 +1035,6 @@ static int ffb_remove(struct platform_device *op)
 
 	framebuffer_release(info);
 
-	dev_set_drvdata(&op->dev, NULL);
-
 	return 0;
 }
 
-- 
cgit 


From 391962f6188849917028debfd6e5bd3a3bdf0f49 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 12:02:20 +0530
Subject: video: p9100: Remove redundant dev_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/p9100.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/p9100.c b/drivers/video/p9100.c
index 4b23af6e5c28..367cea8f43f3 100644
--- a/drivers/video/p9100.c
+++ b/drivers/video/p9100.c
@@ -339,8 +339,6 @@ static int p9100_remove(struct platform_device *op)
 
 	framebuffer_release(info);
 
-	dev_set_drvdata(&op->dev, NULL);
-
 	return 0;
 }
 
-- 
cgit 


From cacb41361708ddf4c8cb8995c9f35f24ce28620f Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 12:02:21 +0530
Subject: video: platinumfb: Remove redundant dev_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/platinumfb.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/platinumfb.c b/drivers/video/platinumfb.c
index 3d86bac62d3e..b644037dd5bc 100644
--- a/drivers/video/platinumfb.c
+++ b/drivers/video/platinumfb.c
@@ -639,7 +639,6 @@ static int platinumfb_probe(struct platform_device* odev)
 		iounmap(pinfo->frame_buffer);
 		iounmap(pinfo->platinum_regs);
 		iounmap(pinfo->cmap_regs);
-		dev_set_drvdata(&odev->dev, NULL);
 		framebuffer_release(info);
 	}
 
-- 
cgit 


From cb643dfbbd1273886442e4a7465d06b7746b24fb Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 12:02:22 +0530
Subject: video: sunxvr1000: Remove redundant dev_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/sunxvr1000.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/sunxvr1000.c b/drivers/video/sunxvr1000.c
index cc6f48bba36b..58241b47a96d 100644
--- a/drivers/video/sunxvr1000.c
+++ b/drivers/video/sunxvr1000.c
@@ -186,8 +186,6 @@ static int gfb_remove(struct platform_device *op)
 
         framebuffer_release(info);
 
-	dev_set_drvdata(&op->dev, NULL);
-
 	return 0;
 }
 
-- 
cgit 


From 3e3d2225aef52112de7ecffd9ce611eac8a9766d Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 12:02:23 +0530
Subject: video: tcx: Remove redundant dev_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/tcx.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/tcx.c b/drivers/video/tcx.c
index c000852500aa..1f3a3271f3dd 100644
--- a/drivers/video/tcx.c
+++ b/drivers/video/tcx.c
@@ -498,8 +498,6 @@ static int tcx_remove(struct platform_device *op)
 
 	framebuffer_release(info);
 
-	dev_set_drvdata(&op->dev, NULL);
-
 	return 0;
 }
 
-- 
cgit 


From 090fd59308c9d50b8eabf71cd28b5513250a7b79 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 12:02:24 +0530
Subject: video: xilinxfb: Remove redundant dev_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/xilinxfb.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/xilinxfb.c b/drivers/video/xilinxfb.c
index 84c664ea8eb9..0e1dd3380a1e 100644
--- a/drivers/video/xilinxfb.c
+++ b/drivers/video/xilinxfb.c
@@ -369,7 +369,6 @@ err_fbmem:
 
 err_region:
 	kfree(drvdata);
-	dev_set_drvdata(dev, NULL);
 
 	return rc;
 }
@@ -404,7 +403,6 @@ static int xilinxfb_release(struct device *dev)
 #endif
 
 	kfree(drvdata);
-	dev_set_drvdata(dev, NULL);
 
 	return 0;
 }
-- 
cgit 


From 385d61ce267ce5ff09dec17bff2ef03098aaf725 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Sun, 15 Sep 2013 12:01:07 +0200
Subject: ARM: ux500: add default trigger on HREF LED

This adds a heartbeat on the first LED on the ux500 HREF
boards.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-href.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/ste-href.dtsi b/arch/arm/boot/dts/ste-href.dtsi
index f88a659aea3b..5e7cf4bf5afb 100644
--- a/arch/arm/boot/dts/ste-href.dtsi
+++ b/arch/arm/boot/dts/ste-href.dtsi
@@ -72,6 +72,7 @@
 				chan0 {
 					led-cur = /bits/ 8 <0x2f>;
 					max-cur = /bits/ 8 <0x5f>;
+					linux,default-trigger = "heartbeat";
 				};
 				chan1 {
 					led-cur = /bits/ 8 <0x2f>;
-- 
cgit 


From 7d5f880b46f222ff83a76fd36b01f5a59bf32122 Mon Sep 17 00:00:00 2001
From: Mateusz Krawczuk <m.krawczuk@partner.samsung.com>
Date: Tue, 24 Sep 2013 18:07:46 +0200
Subject: spi: s3c64xx: Allow build on all Samsung platforms

Replace all symbols by simple dependency PLAT_SAMSUNG.

Signed-off-by: Mateusz Krawczuk <m.krawczuk@partner.samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index b9c53cc40e1f..d92d6690d615 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -393,7 +393,7 @@ config SPI_S3C24XX_FIQ
 
 config SPI_S3C64XX
 	tristate "Samsung S3C64XX series type SPI"
-	depends on (ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5P64X0 || ARCH_EXYNOS)
+	depends on PLAT_SAMSUNG
 	select S3C64XX_DMA if ARCH_S3C64XX
 	help
 	  SPI driver for Samsung S3C64XX and newer SoCs.
-- 
cgit 


From 633795b992ebae2a78890c0cfa5c17058eb93817 Mon Sep 17 00:00:00 2001
From: Sourav Poddar <sourav.poddar@ti.com>
Date: Tue, 24 Sep 2013 20:41:23 +0530
Subject: spi/qspi: Add dual/quad read mode bit.

Add dual/quad read mode bit flag for the master controller.
These check will be used in the spi framework to determine
whether the master controller can do dual/quad read respectively.

Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-ti-qspi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c
index e12d962a289f..7a45c3e665f8 100644
--- a/drivers/spi/spi-ti-qspi.c
+++ b/drivers/spi/spi-ti-qspi.c
@@ -472,7 +472,7 @@ static int ti_qspi_probe(struct platform_device *pdev)
 	if (!master)
 		return -ENOMEM;
 
-	master->mode_bits = SPI_CPOL | SPI_CPHA;
+	master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_RX_DUAL | SPI_RX_QUAD;
 
 	master->bus_num = -1;
 	master->flags = SPI_MASTER_HALF_DUPLEX;
-- 
cgit 


From c7c71066c27f2bafb2ce3b10c407c0285f56acfa Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 21 Aug 2013 22:07:20 +0200
Subject: mac80211: add ieee80211_iterate_active_interfaces_rtnl()

If it is needed to disconnect multiple virtual interfaces after
(WoWLAN-) suspend, the most obvious approach would be to iterate
all interfaces by calling ieee80211_iterate_active_interfaces()
and then call ieee80211_resume_disconnect() for each one. This
is what the iwlmvm driver does.

Unfortunately, this causes a locking dependency from mac80211's
iflist_mtx to the key_mtx. This is problematic as the former is
intentionally never held while calling any driver operation to
allow drivers to iterate with their own locks held. The key_mtx
is held while installing a key into the driver though, so this
new lock dependency means drivers implementing the logic above
can no longer hold their own lock while iterating.

To fix this, add a new ieee80211_iterate_active_interfaces_rtnl()
function that iterates while the RTNL is already held. This is
true during suspend/resume, so that then the locking dependency
isn't introduced.

While at it, also refactor the various interface iterators and
keep only a single implementation called by the various cases.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 include/net/mac80211.h | 19 ++++++++++++++
 net/mac80211/util.c    | 71 ++++++++++++++++++++++++--------------------------
 2 files changed, 53 insertions(+), 37 deletions(-)

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index cc6035f1a2f1..3411c59b636b 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -3919,6 +3919,25 @@ void ieee80211_iterate_active_interfaces_atomic(struct ieee80211_hw *hw,
 						    struct ieee80211_vif *vif),
 						void *data);
 
+/**
+ * ieee80211_iterate_active_interfaces_rtnl - iterate active interfaces
+ *
+ * This function iterates over the interfaces associated with a given
+ * hardware that are currently active and calls the callback for them.
+ * This version can only be used while holding the RTNL.
+ *
+ * @hw: the hardware struct of which the interfaces should be iterated over
+ * @iter_flags: iteration flags, see &enum ieee80211_interface_iteration_flags
+ * @iterator: the iterator function to call, cannot sleep
+ * @data: first argument of the iterator function
+ */
+void ieee80211_iterate_active_interfaces_rtnl(struct ieee80211_hw *hw,
+					      u32 iter_flags,
+					      void (*iterator)(void *data,
+						u8 *mac,
+						struct ieee80211_vif *vif),
+					      void *data);
+
 /**
  * ieee80211_queue_work - add work onto the mac80211 workqueue
  *
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index e1b34a18b243..75a16853fb45 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -567,18 +567,15 @@ void ieee80211_flush_queues(struct ieee80211_local *local,
 					IEEE80211_QUEUE_STOP_REASON_FLUSH);
 }
 
-void ieee80211_iterate_active_interfaces(
-	struct ieee80211_hw *hw, u32 iter_flags,
-	void (*iterator)(void *data, u8 *mac,
-			 struct ieee80211_vif *vif),
-	void *data)
+static void __iterate_active_interfaces(struct ieee80211_local *local,
+					u32 iter_flags,
+					void (*iterator)(void *data, u8 *mac,
+						struct ieee80211_vif *vif),
+					void *data)
 {
-	struct ieee80211_local *local = hw_to_local(hw);
 	struct ieee80211_sub_if_data *sdata;
 
-	mutex_lock(&local->iflist_mtx);
-
-	list_for_each_entry(sdata, &local->interfaces, list) {
+	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
 		switch (sdata->vif.type) {
 		case NL80211_IFTYPE_MONITOR:
 			if (!(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))
@@ -597,13 +594,25 @@ void ieee80211_iterate_active_interfaces(
 				 &sdata->vif);
 	}
 
-	sdata = rcu_dereference_protected(local->monitor_sdata,
-					  lockdep_is_held(&local->iflist_mtx));
+	sdata = rcu_dereference_check(local->monitor_sdata,
+				      lockdep_is_held(&local->iflist_mtx) ||
+				      lockdep_rtnl_is_held());
 	if (sdata &&
 	    (iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL ||
 	     sdata->flags & IEEE80211_SDATA_IN_DRIVER))
 		iterator(data, sdata->vif.addr, &sdata->vif);
+}
 
+void ieee80211_iterate_active_interfaces(
+	struct ieee80211_hw *hw, u32 iter_flags,
+	void (*iterator)(void *data, u8 *mac,
+			 struct ieee80211_vif *vif),
+	void *data)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
+
+	mutex_lock(&local->iflist_mtx);
+	__iterate_active_interfaces(local, iter_flags, iterator, data);
 	mutex_unlock(&local->iflist_mtx);
 }
 EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces);
@@ -615,38 +624,26 @@ void ieee80211_iterate_active_interfaces_atomic(
 	void *data)
 {
 	struct ieee80211_local *local = hw_to_local(hw);
-	struct ieee80211_sub_if_data *sdata;
 
 	rcu_read_lock();
+	__iterate_active_interfaces(local, iter_flags, iterator, data);
+	rcu_read_unlock();
+}
+EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic);
 
-	list_for_each_entry_rcu(sdata, &local->interfaces, list) {
-		switch (sdata->vif.type) {
-		case NL80211_IFTYPE_MONITOR:
-			if (!(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))
-				continue;
-			break;
-		case NL80211_IFTYPE_AP_VLAN:
-			continue;
-		default:
-			break;
-		}
-		if (!(iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL) &&
-		    !(sdata->flags & IEEE80211_SDATA_IN_DRIVER))
-			continue;
-		if (ieee80211_sdata_running(sdata))
-			iterator(data, sdata->vif.addr,
-				 &sdata->vif);
-	}
+void ieee80211_iterate_active_interfaces_rtnl(
+	struct ieee80211_hw *hw, u32 iter_flags,
+	void (*iterator)(void *data, u8 *mac,
+			 struct ieee80211_vif *vif),
+	void *data)
+{
+	struct ieee80211_local *local = hw_to_local(hw);
 
-	sdata = rcu_dereference(local->monitor_sdata);
-	if (sdata &&
-	    (iter_flags & IEEE80211_IFACE_ITER_RESUME_ALL ||
-	     sdata->flags & IEEE80211_SDATA_IN_DRIVER))
-		iterator(data, sdata->vif.addr, &sdata->vif);
+	ASSERT_RTNL();
 
-	rcu_read_unlock();
+	__iterate_active_interfaces(local, iter_flags, iterator, data);
 }
-EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_atomic);
+EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces_rtnl);
 
 /*
  * Nothing should have been stuffed into the workqueue during
-- 
cgit 


From c5dc164df6187e845f1a7c0542f5106c74ff5a92 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 28 Aug 2013 19:03:36 +0200
Subject: mac80211: use ERR_CAST()

No need for ERR_PTR(PTR_ERR()) since there's ERR_CAST, use it.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/key.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 620677e897bd..3e51dd7d98b3 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -879,7 +879,7 @@ ieee80211_gtk_rekey_add(struct ieee80211_vif *vif,
 				  keyconf->keylen, keyconf->key,
 				  0, NULL);
 	if (IS_ERR(key))
-		return ERR_PTR(PTR_ERR(key));
+		return ERR_CAST(key);
 
 	if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
 		key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
-- 
cgit 


From a6ececf4ee24495ecf74672152e28c31cc208df3 Mon Sep 17 00:00:00 2001
From: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Date: Fri, 30 Aug 2013 01:35:09 +0400
Subject: mac80211: Remove superfluous is_multicast_ether_addr() call

Remove superfluous call and use locally stored previous result.

Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/tx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 3456c0486b48..102ce8adf2d1 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1981,7 +1981,7 @@ netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
 	 * EAPOL frames from the local station.
 	 */
 	if (unlikely(!ieee80211_vif_is_mesh(&sdata->vif) &&
-		     !is_multicast_ether_addr(hdr.addr1) && !authorized &&
+		     !multicast && !authorized &&
 		     (cpu_to_be16(ethertype) != sdata->control_port_protocol ||
 		      !ether_addr_equal(sdata->vif.addr, skb->data + ETH_ALEN)))) {
 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
-- 
cgit 


From 392b9ffb05b62fe38aa813b924d160ab663cec8d Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <sgruszka@redhat.com>
Date: Tue, 27 Aug 2013 11:36:35 +0200
Subject: mac80211: change beacon/connection polling

Since when we detect beacon lost we do active AP probing (using nullfunc
frame or probe request) there is no need to have beacon polling. Flags
IEEE80211_STA_BEACON_POLL seems to be used just for historical reasons.

Change also make that after we start connection poll due to beacon loss,
next received beacon will abort the poll.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/ieee80211_i.h |  1 -
 net/mac80211/mlme.c        | 38 +++++++++-----------------------------
 net/mac80211/scan.c        |  3 +--
 3 files changed, 10 insertions(+), 32 deletions(-)

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index b6186517ec56..d353c6462d0f 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -322,7 +322,6 @@ struct ieee80211_roc_work {
 
 /* flags used in struct ieee80211_if_managed.flags */
 enum ieee80211_sta_flags {
-	IEEE80211_STA_BEACON_POLL	= BIT(0),
 	IEEE80211_STA_CONNECTION_POLL	= BIT(1),
 	IEEE80211_STA_CONTROL_PORT	= BIT(2),
 	IEEE80211_STA_DISABLE_HT	= BIT(4),
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 86e4ad56b573..e396a2a97319 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -893,8 +893,7 @@ void ieee80211_send_nullfunc(struct ieee80211_local *local,
 	if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
 		IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS;
 
-	if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
-			    IEEE80211_STA_CONNECTION_POLL))
+	if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL)
 		IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_USE_MINRATE;
 
 	ieee80211_tx_skb(sdata, skb);
@@ -1374,8 +1373,7 @@ static bool ieee80211_powersave_allowed(struct ieee80211_sub_if_data *sdata)
 	if (!mgd->associated)
 		return false;
 
-	if (mgd->flags & (IEEE80211_STA_BEACON_POLL |
-			  IEEE80211_STA_CONNECTION_POLL))
+	if (mgd->flags & IEEE80211_STA_CONNECTION_POLL)
 		return false;
 
 	if (!mgd->have_beacon)
@@ -1691,8 +1689,7 @@ static void __ieee80211_stop_poll(struct ieee80211_sub_if_data *sdata)
 {
 	lockdep_assert_held(&sdata->local->mtx);
 
-	sdata->u.mgd.flags &= ~(IEEE80211_STA_CONNECTION_POLL |
-				IEEE80211_STA_BEACON_POLL);
+	sdata->u.mgd.flags &= ~IEEE80211_STA_CONNECTION_POLL;
 	ieee80211_run_deferred_scan(sdata->local);
 }
 
@@ -1954,11 +1951,8 @@ static void ieee80211_reset_ap_probe(struct ieee80211_sub_if_data *sdata)
 	struct ieee80211_local *local = sdata->local;
 
 	mutex_lock(&local->mtx);
-	if (!(ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
-			      IEEE80211_STA_CONNECTION_POLL))) {
-		mutex_unlock(&local->mtx);
-		return;
-	}
+	if (!(ifmgd->flags & IEEE80211_STA_CONNECTION_POLL))
+		goto out;
 
 	__ieee80211_stop_poll(sdata);
 
@@ -2094,15 +2088,9 @@ static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata,
 	 * because otherwise we would reset the timer every time and
 	 * never check whether we received a probe response!
 	 */
-	if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
-			    IEEE80211_STA_CONNECTION_POLL))
+	if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL)
 		already = true;
 
-	if (beacon)
-		ifmgd->flags |= IEEE80211_STA_BEACON_POLL;
-	else
-		ifmgd->flags |= IEEE80211_STA_CONNECTION_POLL;
-
 	mutex_unlock(&sdata->local->mtx);
 
 	if (already)
@@ -3061,17 +3049,10 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 		}
 	}
 
-	if (ifmgd->flags & IEEE80211_STA_BEACON_POLL) {
+	if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL) {
 		mlme_dbg_ratelimited(sdata,
 				     "cancelling AP probe due to a received beacon\n");
-		mutex_lock(&local->mtx);
-		ifmgd->flags &= ~IEEE80211_STA_BEACON_POLL;
-		ieee80211_run_deferred_scan(local);
-		mutex_unlock(&local->mtx);
-
-		mutex_lock(&local->iflist_mtx);
-		ieee80211_recalc_ps(local, -1);
-		mutex_unlock(&local->iflist_mtx);
+		ieee80211_reset_ap_probe(sdata);
 	}
 
 	/*
@@ -3543,8 +3524,7 @@ void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
 	} else if (ifmgd->assoc_data && ifmgd->assoc_data->timeout_started)
 		run_again(sdata, ifmgd->assoc_data->timeout);
 
-	if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
-			    IEEE80211_STA_CONNECTION_POLL) &&
+	if (ifmgd->flags & IEEE80211_STA_CONNECTION_POLL &&
 	    ifmgd->associated) {
 		u8 bssid[ETH_ALEN];
 		int max_tries;
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c
index 08afe74b98f4..ecb57b0bf74a 100644
--- a/net/mac80211/scan.c
+++ b/net/mac80211/scan.c
@@ -391,8 +391,7 @@ static bool ieee80211_can_scan(struct ieee80211_local *local,
 		return false;
 
 	if (sdata->vif.type == NL80211_IFTYPE_STATION &&
-	    sdata->u.mgd.flags & (IEEE80211_STA_BEACON_POLL |
-				  IEEE80211_STA_CONNECTION_POLL))
+	    sdata->u.mgd.flags & IEEE80211_STA_CONNECTION_POLL)
 		return false;
 
 	return true;
-- 
cgit 


From 45966aebad40dbecb23ee828a8c78870380f5811 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Date: Tue, 27 Aug 2013 16:59:46 +0200
Subject: mac80211: add fixed_rate management to minstrel rc

Add the capability to use a fixed modulation rate to minstrel rate controller

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/rc80211_minstrel.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/net/mac80211/rc80211_minstrel.c b/net/mac80211/rc80211_minstrel.c
index 8b5f7ef7c0c9..7fa1b36e6202 100644
--- a/net/mac80211/rc80211_minstrel.c
+++ b/net/mac80211/rc80211_minstrel.c
@@ -203,6 +203,15 @@ minstrel_update_stats(struct minstrel_priv *mp, struct minstrel_sta_info *mi)
 	memcpy(mi->max_tp_rate, tmp_tp_rate, sizeof(mi->max_tp_rate));
 	mi->max_prob_rate = tmp_prob_rate;
 
+#ifdef CONFIG_MAC80211_DEBUGFS
+	/* use fixed index if set */
+	if (mp->fixed_rate_idx != -1) {
+		mi->max_tp_rate[0] = mp->fixed_rate_idx;
+		mi->max_tp_rate[1] = mp->fixed_rate_idx;
+		mi->max_prob_rate = mp->fixed_rate_idx;
+	}
+#endif
+
 	/* Reset update timer */
 	mi->stats_update = jiffies;
 
@@ -310,6 +319,11 @@ minstrel_get_rate(void *priv, struct ieee80211_sta *sta,
 	/* increase sum packet counter */
 	mi->packet_count++;
 
+#ifdef CONFIG_MAC80211_DEBUGFS
+	if (mp->fixed_rate_idx != -1)
+		return;
+#endif
+
 	delta = (mi->packet_count * sampling_ratio / 100) -
 			(mi->sample_count + mi->sample_deferred / 2);
 
-- 
cgit 


From 37feb7e2fb5eea361495f529f2a150ea3a34dd41 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Date: Tue, 27 Aug 2013 16:59:47 +0200
Subject: mac80211: do not override fixed_rate_idx in minstrel_ht_update_stats

Do not override max_tp_rate, max_tp_rate2 and max_prob_rate configured
according to fixed_rate in minstrel_ht_update_stats throughput computation

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Acked-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/rc80211_minstrel_ht.c | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/net/mac80211/rc80211_minstrel_ht.c b/net/mac80211/rc80211_minstrel_ht.c
index 7c323f27ba23..5d60779a0c1b 100644
--- a/net/mac80211/rc80211_minstrel_ht.c
+++ b/net/mac80211/rc80211_minstrel_ht.c
@@ -365,6 +365,14 @@ minstrel_ht_update_stats(struct minstrel_priv *mp, struct minstrel_ht_sta *mi)
 		}
 	}
 
+#ifdef CONFIG_MAC80211_DEBUGFS
+	/* use fixed index if set */
+	if (mp->fixed_rate_idx != -1) {
+		mi->max_tp_rate = mp->fixed_rate_idx;
+		mi->max_tp_rate2 = mp->fixed_rate_idx;
+		mi->max_prob_rate = mp->fixed_rate_idx;
+	}
+#endif
 
 	mi->stats_update = jiffies;
 }
@@ -774,6 +782,11 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
 	info->flags |= mi->tx_flags;
 	minstrel_ht_check_cck_shortpreamble(mp, mi, txrc->short_preamble);
 
+#ifdef CONFIG_MAC80211_DEBUGFS
+	if (mp->fixed_rate_idx != -1)
+		return;
+#endif
+
 	/* Don't use EAPOL frames for sampling on non-mrr hw */
 	if (mp->hw->max_rates == 1 &&
 	    (info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO))
@@ -781,16 +794,6 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
 	else
 		sample_idx = minstrel_get_sample_rate(mp, mi);
 
-#ifdef CONFIG_MAC80211_DEBUGFS
-	/* use fixed index if set */
-	if (mp->fixed_rate_idx != -1) {
-		mi->max_tp_rate = mp->fixed_rate_idx;
-		mi->max_tp_rate2 = mp->fixed_rate_idx;
-		mi->max_prob_rate = mp->fixed_rate_idx;
-		sample_idx = -1;
-	}
-#endif
-
 	mi->total_packets++;
 
 	/* wraparound */
-- 
cgit 


From 774f073461dbee0decee7524d9b930a98a3dc30c Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Wed, 28 Aug 2013 13:41:28 +0200
Subject: cfg80211: export cfg80211_chandef_dfs_required

It will be used later by the IBSS CSA implementation of mac80211.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 include/net/cfg80211.h | 9 +++++++++
 net/wireless/chan.c    | 1 +
 net/wireless/core.h    | 9 ---------
 3 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index cb710913d5c8..45f6bf591104 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -436,6 +436,15 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy,
 			     const struct cfg80211_chan_def *chandef,
 			     u32 prohibited_flags);
 
+/**
+ * cfg80211_chandef_dfs_required - checks if radar detection is required
+ * @wiphy: the wiphy to validate against
+ * @chandef: the channel definition to check
+ * Return: 1 if radar detection is required, 0 if it is not, < 0 on error
+ */
+int cfg80211_chandef_dfs_required(struct wiphy *wiphy,
+				  const struct cfg80211_chan_def *chandef);
+
 /**
  * ieee80211_chandef_rate_flags - returns rate flags for a channel
  *
diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index 50f6195c8b70..16f3c3a7b2c1 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -328,6 +328,7 @@ int cfg80211_chandef_dfs_required(struct wiphy *wiphy,
 	return cfg80211_get_chans_dfs_required(wiphy, chandef->center_freq2,
 					       width);
 }
+EXPORT_SYMBOL(cfg80211_chandef_dfs_required);
 
 static bool cfg80211_secondary_chans_ok(struct wiphy *wiphy,
 					u32 center_freq, u32 bandwidth,
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 9ad43c619c54..b43efac4efca 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -382,15 +382,6 @@ int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev,
 				 enum cfg80211_chan_mode chanmode,
 				 u8 radar_detect);
 
-/**
- * cfg80211_chandef_dfs_required - checks if radar detection is required
- * @wiphy: the wiphy to validate against
- * @chandef: the channel definition to check
- * Return: 1 if radar detection is required, 0 if it is not, < 0 on error
- */
-int cfg80211_chandef_dfs_required(struct wiphy *wiphy,
-				  const struct cfg80211_chan_def *c);
-
 void cfg80211_set_dfs_state(struct wiphy *wiphy,
 			    const struct cfg80211_chan_def *chandef,
 			    enum nl80211_dfs_state dfs_state);
-- 
cgit 


From e6b7cde4d3e155f118b81f1f62f86554c529083a Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Wed, 28 Aug 2013 13:41:29 +0200
Subject: mac80211: split off channel switch parsing function

The channel switch parsing function can be re-used for the IBSS code,
put the common part into an extra function.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
[also move/rename chandef_downgrade]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/ieee80211_i.h |  24 +++++
 net/mac80211/mlme.c        | 239 +++------------------------------------------
 net/mac80211/spectmgmt.c   | 162 ++++++++++++++++++++++++++++++
 net/mac80211/util.c        |  60 ++++++++++++
 4 files changed, 262 insertions(+), 223 deletions(-)

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index d353c6462d0f..7f0e6da8e6f8 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1480,6 +1480,29 @@ void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
 				       struct ieee80211_mgmt *mgmt,
 				       size_t len);
+/**
+ * ieee80211_parse_ch_switch_ie - parses channel switch IEs
+ * @sdata: the sdata of the interface which has received the frame
+ * @elems: parsed 802.11 elements received with the frame
+ * @beacon: indicates if the frame was a beacon or probe response
+ * @current_band: indicates the current band
+ * @sta_flags: contains information about own capabilities and restrictions
+ *	to decide which channel switch announcements can be accepted. Only the
+ *	following subset of &enum ieee80211_sta_flags are evaluated:
+ *	%IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
+ *	%IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
+ *	%IEEE80211_STA_DISABLE_160MHZ.
+ * @count: to be filled with the counter until the switch (on success only)
+ * @bssid: the currently connected bssid (for reporting)
+ * @mode: to be filled with CSA mode (on success only)
+ * @new_chandef: to be filled with destination chandef (on success only)
+ * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
+ */
+int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
+				 struct ieee802_11_elems *elems, bool beacon,
+				 enum ieee80211_band current_band,
+				 u32 sta_flags, u8 *bssid, u8 *count, u8 *mode,
+				 struct cfg80211_chan_def *new_chandef);
 
 /* Suspend/resume and hw reconfiguration */
 int ieee80211_reconfig(struct ieee80211_local *local);
@@ -1653,6 +1676,7 @@ int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
 void ieee80211_ht_oper_to_chandef(struct ieee80211_channel *control_chan,
 				  const struct ieee80211_ht_operation *ht_oper,
 				  struct cfg80211_chan_def *chandef);
+u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
 
 int __must_check
 ieee80211_vif_use_channel(struct ieee80211_sub_if_data *sdata,
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index e396a2a97319..9fce0f49cd10 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -145,66 +145,6 @@ static int ecw2cw(int ecw)
 	return (1 << ecw) - 1;
 }
 
-static u32 chandef_downgrade(struct cfg80211_chan_def *c)
-{
-	u32 ret;
-	int tmp;
-
-	switch (c->width) {
-	case NL80211_CHAN_WIDTH_20:
-		c->width = NL80211_CHAN_WIDTH_20_NOHT;
-		ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
-		break;
-	case NL80211_CHAN_WIDTH_40:
-		c->width = NL80211_CHAN_WIDTH_20;
-		c->center_freq1 = c->chan->center_freq;
-		ret = IEEE80211_STA_DISABLE_40MHZ |
-		      IEEE80211_STA_DISABLE_VHT;
-		break;
-	case NL80211_CHAN_WIDTH_80:
-		tmp = (30 + c->chan->center_freq - c->center_freq1)/20;
-		/* n_P40 */
-		tmp /= 2;
-		/* freq_P40 */
-		c->center_freq1 = c->center_freq1 - 20 + 40 * tmp;
-		c->width = NL80211_CHAN_WIDTH_40;
-		ret = IEEE80211_STA_DISABLE_VHT;
-		break;
-	case NL80211_CHAN_WIDTH_80P80:
-		c->center_freq2 = 0;
-		c->width = NL80211_CHAN_WIDTH_80;
-		ret = IEEE80211_STA_DISABLE_80P80MHZ |
-		      IEEE80211_STA_DISABLE_160MHZ;
-		break;
-	case NL80211_CHAN_WIDTH_160:
-		/* n_P20 */
-		tmp = (70 + c->chan->center_freq - c->center_freq1)/20;
-		/* n_P80 */
-		tmp /= 4;
-		c->center_freq1 = c->center_freq1 - 40 + 80 * tmp;
-		c->width = NL80211_CHAN_WIDTH_80;
-		ret = IEEE80211_STA_DISABLE_80P80MHZ |
-		      IEEE80211_STA_DISABLE_160MHZ;
-		break;
-	default:
-	case NL80211_CHAN_WIDTH_20_NOHT:
-		WARN_ON_ONCE(1);
-		c->width = NL80211_CHAN_WIDTH_20_NOHT;
-		ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
-		break;
-	case NL80211_CHAN_WIDTH_5:
-	case NL80211_CHAN_WIDTH_10:
-		WARN_ON_ONCE(1);
-		/* keep c->width */
-		ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
-		break;
-	}
-
-	WARN_ON_ONCE(!cfg80211_chandef_valid(c));
-
-	return ret;
-}
-
 static u32
 ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
 			     struct ieee80211_supported_band *sband,
@@ -352,7 +292,7 @@ out:
 			break;
 		}
 
-		ret |= chandef_downgrade(chandef);
+		ret |= ieee80211_chandef_downgrade(chandef);
 	}
 
 	if (chandef->width != vht_chandef.width && !tracking)
@@ -406,13 +346,13 @@ static int ieee80211_config_bw(struct ieee80211_sub_if_data *sdata,
 	 */
 	if (ifmgd->flags & IEEE80211_STA_DISABLE_80P80MHZ &&
 	    chandef.width == NL80211_CHAN_WIDTH_80P80)
-		flags |= chandef_downgrade(&chandef);
+		flags |= ieee80211_chandef_downgrade(&chandef);
 	if (ifmgd->flags & IEEE80211_STA_DISABLE_160MHZ &&
 	    chandef.width == NL80211_CHAN_WIDTH_160)
-		flags |= chandef_downgrade(&chandef);
+		flags |= ieee80211_chandef_downgrade(&chandef);
 	if (ifmgd->flags & IEEE80211_STA_DISABLE_40MHZ &&
 	    chandef.width > NL80211_CHAN_WIDTH_20)
-		flags |= chandef_downgrade(&chandef);
+		flags |= ieee80211_chandef_downgrade(&chandef);
 
 	if (cfg80211_chandef_identical(&chandef, &sdata->vif.bss_conf.chandef))
 		return 0;
@@ -999,20 +939,12 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
 	struct cfg80211_bss *cbss = ifmgd->associated;
-	struct ieee80211_bss *bss;
 	struct ieee80211_chanctx *chanctx;
-	enum ieee80211_band new_band;
-	int new_freq;
-	u8 new_chan_no;
+	enum ieee80211_band current_band;
 	u8 count;
 	u8 mode;
-	struct ieee80211_channel *new_chan;
 	struct cfg80211_chan_def new_chandef = {};
-	struct cfg80211_chan_def new_vht_chandef = {};
-	const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
-	const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
-	const struct ieee80211_ht_operation *ht_oper;
-	int secondary_channel_offset = -1;
+	int res;
 
 	sdata_assert_lock(sdata);
 
@@ -1026,162 +958,23 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 	if (ifmgd->flags & IEEE80211_STA_CSA_RECEIVED)
 		return;
 
-	sec_chan_offs = elems->sec_chan_offs;
-	wide_bw_chansw_ie = elems->wide_bw_chansw_ie;
-	ht_oper = elems->ht_operation;
-
-	if (ifmgd->flags & (IEEE80211_STA_DISABLE_HT |
-			    IEEE80211_STA_DISABLE_40MHZ)) {
-		sec_chan_offs = NULL;
-		wide_bw_chansw_ie = NULL;
-		/* only used for bandwidth here */
-		ht_oper = NULL;
-	}
-
-	if (ifmgd->flags & IEEE80211_STA_DISABLE_VHT)
-		wide_bw_chansw_ie = NULL;
-
-	if (elems->ext_chansw_ie) {
-		if (!ieee80211_operating_class_to_band(
-				elems->ext_chansw_ie->new_operating_class,
-				&new_band)) {
-			sdata_info(sdata,
-				   "cannot understand ECSA IE operating class %d, disconnecting\n",
-				   elems->ext_chansw_ie->new_operating_class);
-			ieee80211_queue_work(&local->hw,
-					     &ifmgd->csa_connection_drop_work);
-		}
-		new_chan_no = elems->ext_chansw_ie->new_ch_num;
-		count = elems->ext_chansw_ie->count;
-		mode = elems->ext_chansw_ie->mode;
-	} else if (elems->ch_switch_ie) {
-		new_band = cbss->channel->band;
-		new_chan_no = elems->ch_switch_ie->new_ch_num;
-		count = elems->ch_switch_ie->count;
-		mode = elems->ch_switch_ie->mode;
-	} else {
-		/* nothing here we understand */
-		return;
-	}
-
-	bss = (void *)cbss->priv;
-
-	new_freq = ieee80211_channel_to_frequency(new_chan_no, new_band);
-	new_chan = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
-	if (!new_chan || new_chan->flags & IEEE80211_CHAN_DISABLED) {
-		sdata_info(sdata,
-			   "AP %pM switches to unsupported channel (%d MHz), disconnecting\n",
-			   ifmgd->associated->bssid, new_freq);
+	current_band = cbss->channel->band;
+	res = ieee80211_parse_ch_switch_ie(sdata, elems, beacon, current_band,
+					   ifmgd->flags,
+					   ifmgd->associated->bssid, &count,
+					   &mode, &new_chandef);
+	if (res	< 0)
 		ieee80211_queue_work(&local->hw,
 				     &ifmgd->csa_connection_drop_work);
+	if (res)
 		return;
-	}
-
-	if (!beacon && sec_chan_offs) {
-		secondary_channel_offset = sec_chan_offs->sec_chan_offs;
-	} else if (beacon && ht_oper) {
-		secondary_channel_offset =
-			ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
-	} else if (!(ifmgd->flags & IEEE80211_STA_DISABLE_HT)) {
-		/*
-		 * If it's not a beacon, HT is enabled and the IE not present,
-		 * it's 20 MHz, 802.11-2012 8.5.2.6:
-		 *	This element [the Secondary Channel Offset Element] is
-		 *	present when switching to a 40 MHz channel. It may be
-		 *	present when switching to a 20 MHz channel (in which
-		 *	case the secondary channel offset is set to SCN).
-		 */
-		secondary_channel_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
-	}
-
-	switch (secondary_channel_offset) {
-	default:
-		/* secondary_channel_offset was present but is invalid */
-	case IEEE80211_HT_PARAM_CHA_SEC_NONE:
-		cfg80211_chandef_create(&new_chandef, new_chan,
-					NL80211_CHAN_HT20);
-		break;
-	case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
-		cfg80211_chandef_create(&new_chandef, new_chan,
-					NL80211_CHAN_HT40PLUS);
-		break;
-	case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
-		cfg80211_chandef_create(&new_chandef, new_chan,
-					NL80211_CHAN_HT40MINUS);
-		break;
-	case -1:
-		cfg80211_chandef_create(&new_chandef, new_chan,
-					NL80211_CHAN_NO_HT);
-		/* keep width for 5/10 MHz channels */
-		switch (sdata->vif.bss_conf.chandef.width) {
-		case NL80211_CHAN_WIDTH_5:
-		case NL80211_CHAN_WIDTH_10:
-			new_chandef.width = sdata->vif.bss_conf.chandef.width;
-			break;
-		default:
-			break;
-		}
-		break;
-	}
-
-	if (wide_bw_chansw_ie) {
-		new_vht_chandef.chan = new_chan;
-		new_vht_chandef.center_freq1 =
-			ieee80211_channel_to_frequency(
-				wide_bw_chansw_ie->new_center_freq_seg0,
-				new_band);
-
-		switch (wide_bw_chansw_ie->new_channel_width) {
-		default:
-			/* hmmm, ignore VHT and use HT if present */
-		case IEEE80211_VHT_CHANWIDTH_USE_HT:
-			new_vht_chandef.chan = NULL;
-			break;
-		case IEEE80211_VHT_CHANWIDTH_80MHZ:
-			new_vht_chandef.width = NL80211_CHAN_WIDTH_80;
-			break;
-		case IEEE80211_VHT_CHANWIDTH_160MHZ:
-			new_vht_chandef.width = NL80211_CHAN_WIDTH_160;
-			break;
-		case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
-			/* field is otherwise reserved */
-			new_vht_chandef.center_freq2 =
-				ieee80211_channel_to_frequency(
-					wide_bw_chansw_ie->new_center_freq_seg1,
-					new_band);
-			new_vht_chandef.width = NL80211_CHAN_WIDTH_80P80;
-			break;
-		}
-		if (ifmgd->flags & IEEE80211_STA_DISABLE_80P80MHZ &&
-		    new_vht_chandef.width == NL80211_CHAN_WIDTH_80P80)
-			chandef_downgrade(&new_vht_chandef);
-		if (ifmgd->flags & IEEE80211_STA_DISABLE_160MHZ &&
-		    new_vht_chandef.width == NL80211_CHAN_WIDTH_160)
-			chandef_downgrade(&new_vht_chandef);
-		if (ifmgd->flags & IEEE80211_STA_DISABLE_40MHZ &&
-		    new_vht_chandef.width > NL80211_CHAN_WIDTH_20)
-			chandef_downgrade(&new_vht_chandef);
-	}
-
-	/* if VHT data is there validate & use it */
-	if (new_vht_chandef.chan) {
-		if (!cfg80211_chandef_compatible(&new_vht_chandef,
-						 &new_chandef)) {
-			sdata_info(sdata,
-				   "AP %pM CSA has inconsistent channel data, disconnecting\n",
-				   ifmgd->associated->bssid);
-			ieee80211_queue_work(&local->hw,
-					     &ifmgd->csa_connection_drop_work);
-			return;
-		}
-		new_chandef = new_vht_chandef;
-	}
 
 	if (!cfg80211_chandef_usable(local->hw.wiphy, &new_chandef,
 				     IEEE80211_CHAN_DISABLED)) {
 		sdata_info(sdata,
 			   "AP %pM switches to unsupported channel (%d MHz, width:%d, CF1/2: %d/%d MHz), disconnecting\n",
-			   ifmgd->associated->bssid, new_freq,
+			   ifmgd->associated->bssid,
+			   new_chandef.chan->center_freq,
 			   new_chandef.width, new_chandef.center_freq1,
 			   new_chandef.center_freq2);
 		ieee80211_queue_work(&local->hw,
@@ -3856,7 +3649,7 @@ static int ieee80211_prep_channel(struct ieee80211_sub_if_data *sdata,
 		return ret;
 
 	while (ret && chandef.width != NL80211_CHAN_WIDTH_20_NOHT) {
-		ifmgd->flags |= chandef_downgrade(&chandef);
+		ifmgd->flags |= ieee80211_chandef_downgrade(&chandef);
 		ret = ieee80211_vif_use_channel(sdata, &chandef,
 						IEEE80211_CHANCTX_SHARED);
 	}
diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c
index 578eea3fc04d..921597e279a3 100644
--- a/net/mac80211/spectmgmt.c
+++ b/net/mac80211/spectmgmt.c
@@ -21,6 +21,168 @@
 #include "sta_info.h"
 #include "wme.h"
 
+int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
+				 struct ieee802_11_elems *elems, bool beacon,
+				 enum ieee80211_band current_band,
+				 u32 sta_flags, u8 *bssid, u8 *count, u8 *mode,
+				 struct cfg80211_chan_def *new_chandef)
+{
+	enum ieee80211_band new_band;
+	int new_freq;
+	u8 new_chan_no;
+	struct ieee80211_channel *new_chan;
+	struct cfg80211_chan_def new_vht_chandef = {};
+	const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
+	const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
+	const struct ieee80211_ht_operation *ht_oper;
+	int secondary_channel_offset = -1;
+
+	sec_chan_offs = elems->sec_chan_offs;
+	wide_bw_chansw_ie = elems->wide_bw_chansw_ie;
+	ht_oper = elems->ht_operation;
+
+	if (sta_flags & (IEEE80211_STA_DISABLE_HT |
+			 IEEE80211_STA_DISABLE_40MHZ)) {
+		sec_chan_offs = NULL;
+		wide_bw_chansw_ie = NULL;
+		/* only used for bandwidth here */
+		ht_oper = NULL;
+	}
+
+	if (sta_flags & IEEE80211_STA_DISABLE_VHT)
+		wide_bw_chansw_ie = NULL;
+
+	if (elems->ext_chansw_ie) {
+		if (!ieee80211_operating_class_to_band(
+				elems->ext_chansw_ie->new_operating_class,
+				&new_band)) {
+			sdata_info(sdata,
+				   "cannot understand ECSA IE operating class %d, disconnecting\n",
+				   elems->ext_chansw_ie->new_operating_class);
+			return -EINVAL;
+		}
+		new_chan_no = elems->ext_chansw_ie->new_ch_num;
+		*count = elems->ext_chansw_ie->count;
+		*mode = elems->ext_chansw_ie->mode;
+	} else if (elems->ch_switch_ie) {
+		new_band = current_band;
+		new_chan_no = elems->ch_switch_ie->new_ch_num;
+		*count = elems->ch_switch_ie->count;
+		*mode = elems->ch_switch_ie->mode;
+	} else {
+		/* nothing here we understand */
+		return 1;
+	}
+
+	new_freq = ieee80211_channel_to_frequency(new_chan_no, new_band);
+	new_chan = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
+	if (!new_chan || new_chan->flags & IEEE80211_CHAN_DISABLED) {
+		sdata_info(sdata,
+			   "BSS %pM switches to unsupported channel (%d MHz), disconnecting\n",
+			   bssid, new_freq);
+		return -EINVAL;
+	}
+
+	if (!beacon && sec_chan_offs) {
+		secondary_channel_offset = sec_chan_offs->sec_chan_offs;
+	} else if (beacon && ht_oper) {
+		secondary_channel_offset =
+			ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET;
+	} else if (!(sta_flags & IEEE80211_STA_DISABLE_HT)) {
+		/* If it's not a beacon, HT is enabled and the IE not present,
+		 * it's 20 MHz, 802.11-2012 8.5.2.6:
+		 *	This element [the Secondary Channel Offset Element] is
+		 *	present when switching to a 40 MHz channel. It may be
+		 *	present when switching to a 20 MHz channel (in which
+		 *	case the secondary channel offset is set to SCN).
+		 */
+		secondary_channel_offset = IEEE80211_HT_PARAM_CHA_SEC_NONE;
+	}
+
+	switch (secondary_channel_offset) {
+	default:
+		/* secondary_channel_offset was present but is invalid */
+	case IEEE80211_HT_PARAM_CHA_SEC_NONE:
+		cfg80211_chandef_create(new_chandef, new_chan,
+					NL80211_CHAN_HT20);
+		break;
+	case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
+		cfg80211_chandef_create(new_chandef, new_chan,
+					NL80211_CHAN_HT40PLUS);
+		break;
+	case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
+		cfg80211_chandef_create(new_chandef, new_chan,
+					NL80211_CHAN_HT40MINUS);
+		break;
+	case -1:
+		cfg80211_chandef_create(new_chandef, new_chan,
+					NL80211_CHAN_NO_HT);
+		/* keep width for 5/10 MHz channels */
+		switch (sdata->vif.bss_conf.chandef.width) {
+		case NL80211_CHAN_WIDTH_5:
+		case NL80211_CHAN_WIDTH_10:
+			new_chandef->width = sdata->vif.bss_conf.chandef.width;
+			break;
+		default:
+			break;
+		}
+		break;
+	}
+
+	if (wide_bw_chansw_ie) {
+		new_vht_chandef.chan = new_chan;
+		new_vht_chandef.center_freq1 =
+			ieee80211_channel_to_frequency(
+				wide_bw_chansw_ie->new_center_freq_seg0,
+				new_band);
+
+		switch (wide_bw_chansw_ie->new_channel_width) {
+		default:
+			/* hmmm, ignore VHT and use HT if present */
+		case IEEE80211_VHT_CHANWIDTH_USE_HT:
+			new_vht_chandef.chan = NULL;
+			break;
+		case IEEE80211_VHT_CHANWIDTH_80MHZ:
+			new_vht_chandef.width = NL80211_CHAN_WIDTH_80;
+			break;
+		case IEEE80211_VHT_CHANWIDTH_160MHZ:
+			new_vht_chandef.width = NL80211_CHAN_WIDTH_160;
+			break;
+		case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
+			/* field is otherwise reserved */
+			new_vht_chandef.center_freq2 =
+				ieee80211_channel_to_frequency(
+					wide_bw_chansw_ie->new_center_freq_seg1,
+					new_band);
+			new_vht_chandef.width = NL80211_CHAN_WIDTH_80P80;
+			break;
+		}
+		if (sta_flags & IEEE80211_STA_DISABLE_80P80MHZ &&
+		    new_vht_chandef.width == NL80211_CHAN_WIDTH_80P80)
+			ieee80211_chandef_downgrade(&new_vht_chandef);
+		if (sta_flags & IEEE80211_STA_DISABLE_160MHZ &&
+		    new_vht_chandef.width == NL80211_CHAN_WIDTH_160)
+			ieee80211_chandef_downgrade(&new_vht_chandef);
+		if (sta_flags & IEEE80211_STA_DISABLE_40MHZ &&
+		    new_vht_chandef.width > NL80211_CHAN_WIDTH_20)
+			ieee80211_chandef_downgrade(&new_vht_chandef);
+	}
+
+	/* if VHT data is there validate & use it */
+	if (new_vht_chandef.chan) {
+		if (!cfg80211_chandef_compatible(&new_vht_chandef,
+						 new_chandef)) {
+			sdata_info(sdata,
+				   "BSS %pM: CSA has inconsistent channel data, disconnecting\n",
+				   bssid);
+			return -EINVAL;
+		}
+		*new_chandef = new_vht_chandef;
+	}
+
+	return 0;
+}
+
 static void ieee80211_send_refuse_measurement_request(struct ieee80211_sub_if_data *sdata,
 					struct ieee80211_msrment_ie *request_ie,
 					const u8 *da, const u8 *bssid,
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 75a16853fb45..3c8283b9b45a 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -2292,3 +2292,63 @@ void ieee80211_radar_detected(struct ieee80211_hw *hw)
 	ieee80211_queue_work(hw, &local->radar_detected_work);
 }
 EXPORT_SYMBOL(ieee80211_radar_detected);
+
+u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c)
+{
+	u32 ret;
+	int tmp;
+
+	switch (c->width) {
+	case NL80211_CHAN_WIDTH_20:
+		c->width = NL80211_CHAN_WIDTH_20_NOHT;
+		ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
+		break;
+	case NL80211_CHAN_WIDTH_40:
+		c->width = NL80211_CHAN_WIDTH_20;
+		c->center_freq1 = c->chan->center_freq;
+		ret = IEEE80211_STA_DISABLE_40MHZ |
+		      IEEE80211_STA_DISABLE_VHT;
+		break;
+	case NL80211_CHAN_WIDTH_80:
+		tmp = (30 + c->chan->center_freq - c->center_freq1)/20;
+		/* n_P40 */
+		tmp /= 2;
+		/* freq_P40 */
+		c->center_freq1 = c->center_freq1 - 20 + 40 * tmp;
+		c->width = NL80211_CHAN_WIDTH_40;
+		ret = IEEE80211_STA_DISABLE_VHT;
+		break;
+	case NL80211_CHAN_WIDTH_80P80:
+		c->center_freq2 = 0;
+		c->width = NL80211_CHAN_WIDTH_80;
+		ret = IEEE80211_STA_DISABLE_80P80MHZ |
+		      IEEE80211_STA_DISABLE_160MHZ;
+		break;
+	case NL80211_CHAN_WIDTH_160:
+		/* n_P20 */
+		tmp = (70 + c->chan->center_freq - c->center_freq1)/20;
+		/* n_P80 */
+		tmp /= 4;
+		c->center_freq1 = c->center_freq1 - 40 + 80 * tmp;
+		c->width = NL80211_CHAN_WIDTH_80;
+		ret = IEEE80211_STA_DISABLE_80P80MHZ |
+		      IEEE80211_STA_DISABLE_160MHZ;
+		break;
+	default:
+	case NL80211_CHAN_WIDTH_20_NOHT:
+		WARN_ON_ONCE(1);
+		c->width = NL80211_CHAN_WIDTH_20_NOHT;
+		ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
+		break;
+	case NL80211_CHAN_WIDTH_5:
+	case NL80211_CHAN_WIDTH_10:
+		WARN_ON_ONCE(1);
+		/* keep c->width */
+		ret = IEEE80211_STA_DISABLE_HT | IEEE80211_STA_DISABLE_VHT;
+		break;
+	}
+
+	WARN_ON_ONCE(!cfg80211_chandef_valid(c));
+
+	return ret;
+}
-- 
cgit 


From 871a4180b8b62dbed54cd203c33bdab7fce24e6f Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Wed, 28 Aug 2013 13:41:30 +0200
Subject: mac80211: split off ibss disconnect

IBSS CSA will require to disconnect if a channel switch fails, but
mac80211 should search and re-connect after this disconnect. To allow
such usage, split off the ibss disconnect process in a separate function
which only performs the disconnect without overwriting nl80211-supplied
parameters.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/ibss.c | 172 ++++++++++++++++++++++++++++------------------------
 1 file changed, 92 insertions(+), 80 deletions(-)

diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index a12afe77bb26..0c3ec082e4f5 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -499,6 +499,96 @@ ieee80211_ibss_add_sta(struct ieee80211_sub_if_data *sdata, const u8 *bssid,
 	return ieee80211_ibss_finish_sta(sta);
 }
 
+static int ieee80211_sta_active_ibss(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_local *local = sdata->local;
+	int active = 0;
+	struct sta_info *sta;
+
+	sdata_assert_lock(sdata);
+
+	rcu_read_lock();
+
+	list_for_each_entry_rcu(sta, &local->sta_list, list) {
+		if (sta->sdata == sdata &&
+		    time_after(sta->last_rx + IEEE80211_IBSS_MERGE_INTERVAL,
+			       jiffies)) {
+			active++;
+			break;
+		}
+	}
+
+	rcu_read_unlock();
+
+	return active;
+}
+
+static void ieee80211_ibss_disconnect(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+	struct ieee80211_local *local = sdata->local;
+	struct cfg80211_bss *cbss;
+	struct beacon_data *presp;
+	struct sta_info *sta;
+	int active_ibss;
+	u16 capability;
+
+	active_ibss = ieee80211_sta_active_ibss(sdata);
+
+	if (!active_ibss && !is_zero_ether_addr(ifibss->bssid)) {
+		capability = WLAN_CAPABILITY_IBSS;
+
+		if (ifibss->privacy)
+			capability |= WLAN_CAPABILITY_PRIVACY;
+
+		cbss = cfg80211_get_bss(local->hw.wiphy, ifibss->chandef.chan,
+					ifibss->bssid, ifibss->ssid,
+					ifibss->ssid_len, WLAN_CAPABILITY_IBSS |
+					WLAN_CAPABILITY_PRIVACY,
+					capability);
+
+		if (cbss) {
+			cfg80211_unlink_bss(local->hw.wiphy, cbss);
+			cfg80211_put_bss(sdata->local->hw.wiphy, cbss);
+		}
+	}
+
+	ifibss->state = IEEE80211_IBSS_MLME_SEARCH;
+
+	sta_info_flush(sdata);
+
+	spin_lock_bh(&ifibss->incomplete_lock);
+	while (!list_empty(&ifibss->incomplete_stations)) {
+		sta = list_first_entry(&ifibss->incomplete_stations,
+				       struct sta_info, list);
+		list_del(&sta->list);
+		spin_unlock_bh(&ifibss->incomplete_lock);
+
+		sta_info_free(local, sta);
+		spin_lock_bh(&ifibss->incomplete_lock);
+	}
+	spin_unlock_bh(&ifibss->incomplete_lock);
+
+	netif_carrier_off(sdata->dev);
+
+	sdata->vif.bss_conf.ibss_joined = false;
+	sdata->vif.bss_conf.ibss_creator = false;
+	sdata->vif.bss_conf.enable_beacon = false;
+	sdata->vif.bss_conf.ssid_len = 0;
+
+	/* remove beacon */
+	presp = rcu_dereference_protected(ifibss->presp,
+					  lockdep_is_held(&sdata->wdev.mtx));
+	RCU_INIT_POINTER(sdata->u.ibss.presp, NULL);
+	if (presp)
+		kfree_rcu(presp, rcu_head);
+
+	clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
+	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
+						BSS_CHANGED_IBSS);
+	ieee80211_vif_release_channel(sdata);
+}
+
 static void ieee80211_rx_mgmt_deauth_ibss(struct ieee80211_sub_if_data *sdata,
 					  struct ieee80211_mgmt *mgmt,
 					  size_t len)
@@ -775,30 +865,6 @@ void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
 	ieee80211_queue_work(&local->hw, &sdata->work);
 }
 
-static int ieee80211_sta_active_ibss(struct ieee80211_sub_if_data *sdata)
-{
-	struct ieee80211_local *local = sdata->local;
-	int active = 0;
-	struct sta_info *sta;
-
-	sdata_assert_lock(sdata);
-
-	rcu_read_lock();
-
-	list_for_each_entry_rcu(sta, &local->sta_list, list) {
-		if (sta->sdata == sdata &&
-		    time_after(sta->last_rx + IEEE80211_IBSS_MERGE_INTERVAL,
-			       jiffies)) {
-			active++;
-			break;
-		}
-	}
-
-	rcu_read_unlock();
-
-	return active;
-}
-
 static void ieee80211_ibss_sta_expire(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_local *local = sdata->local;
@@ -1265,73 +1331,19 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
-	struct ieee80211_local *local = sdata->local;
-	struct cfg80211_bss *cbss;
-	u16 capability;
-	int active_ibss;
-	struct sta_info *sta;
-	struct beacon_data *presp;
-
-	active_ibss = ieee80211_sta_active_ibss(sdata);
-
-	if (!active_ibss && !is_zero_ether_addr(ifibss->bssid)) {
-		capability = WLAN_CAPABILITY_IBSS;
-
-		if (ifibss->privacy)
-			capability |= WLAN_CAPABILITY_PRIVACY;
 
-		cbss = cfg80211_get_bss(local->hw.wiphy, ifibss->chandef.chan,
-					ifibss->bssid, ifibss->ssid,
-					ifibss->ssid_len, WLAN_CAPABILITY_IBSS |
-					WLAN_CAPABILITY_PRIVACY,
-					capability);
-
-		if (cbss) {
-			cfg80211_unlink_bss(local->hw.wiphy, cbss);
-			cfg80211_put_bss(local->hw.wiphy, cbss);
-		}
-	}
-
-	ifibss->state = IEEE80211_IBSS_MLME_SEARCH;
-	memset(ifibss->bssid, 0, ETH_ALEN);
+	ieee80211_ibss_disconnect(sdata);
 	ifibss->ssid_len = 0;
-
-	sta_info_flush(sdata);
-
-	spin_lock_bh(&ifibss->incomplete_lock);
-	while (!list_empty(&ifibss->incomplete_stations)) {
-		sta = list_first_entry(&ifibss->incomplete_stations,
-				       struct sta_info, list);
-		list_del(&sta->list);
-		spin_unlock_bh(&ifibss->incomplete_lock);
-
-		sta_info_free(local, sta);
-		spin_lock_bh(&ifibss->incomplete_lock);
-	}
-	spin_unlock_bh(&ifibss->incomplete_lock);
-
-	netif_carrier_off(sdata->dev);
+	memset(ifibss->bssid, 0, ETH_ALEN);
 
 	/* remove beacon */
 	kfree(sdata->u.ibss.ie);
-	presp = rcu_dereference_protected(ifibss->presp,
-					  lockdep_is_held(&sdata->wdev.mtx));
-	RCU_INIT_POINTER(sdata->u.ibss.presp, NULL);
 
 	/* on the next join, re-program HT parameters */
 	memset(&ifibss->ht_capa, 0, sizeof(ifibss->ht_capa));
 	memset(&ifibss->ht_capa_mask, 0, sizeof(ifibss->ht_capa_mask));
 
-	sdata->vif.bss_conf.ibss_joined = false;
-	sdata->vif.bss_conf.ibss_creator = false;
-	sdata->vif.bss_conf.enable_beacon = false;
-	sdata->vif.bss_conf.ssid_len = 0;
-	clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
-	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
-						BSS_CHANGED_IBSS);
-	ieee80211_vif_release_channel(sdata);
 	synchronize_rcu();
-	kfree(presp);
 
 	skb_queue_purge(&sdata->skb_queue);
 
-- 
cgit 


From cd7760e62c2ac8581f050b2d36501d1a60beaf83 Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Wed, 28 Aug 2013 13:41:31 +0200
Subject: mac80211: add support for CSA in IBSS mode

This function adds the channel switch announcement implementation for the
IBSS code. It is triggered by userspace (mac80211/cfg) or by external
channel switch announcement, which have to be adopted. Both CSAs in
beacons and action frames are supported. As for AP mode, the channel
switch is applied after some time. However in IBSS mode, the channel
switch IEs are generated in the kernel.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/cfg.c         |  87 ++++++++---
 net/mac80211/ibss.c        | 354 ++++++++++++++++++++++++++++++++++++++++++++-
 net/mac80211/ieee80211_i.h |   5 +
 net/mac80211/iface.c       |   4 +
 net/mac80211/rx.c          |  36 +++--
 net/mac80211/tx.c          |  37 ++++-
 6 files changed, 480 insertions(+), 43 deletions(-)

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 2e7855a1b10d..b455e7264f4f 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2865,30 +2865,38 @@ void ieee80211_csa_finalize_work(struct work_struct *work)
 	if (!ieee80211_sdata_running(sdata))
 		return;
 
-	if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_AP))
-		return;
-
 	sdata->radar_required = sdata->csa_radar_required;
 	err = ieee80211_vif_change_channel(sdata, &local->csa_chandef,
 					   &changed);
 	if (WARN_ON(err < 0))
 		return;
 
-	err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
-	if (err < 0)
-		return;
+	ieee80211_bss_info_change_notify(sdata, changed);
 
-	changed |= err;
-	kfree(sdata->u.ap.next_beacon);
-	sdata->u.ap.next_beacon = NULL;
+	switch (sdata->vif.type) {
+	case NL80211_IFTYPE_AP:
+		err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon);
+		if (err < 0)
+			return;
+		changed |= err;
+		kfree(sdata->u.ap.next_beacon);
+		sdata->u.ap.next_beacon = NULL;
+
+		ieee80211_bss_info_change_notify(sdata, err);
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		ieee80211_ibss_finish_csa(sdata);
+		break;
+	default:
+		WARN_ON(1);
+		return;
+	}
 	sdata->vif.csa_active = false;
 
 	ieee80211_wake_queues_by_reason(&sdata->local->hw,
 					IEEE80211_MAX_QUEUE_MAP,
 					IEEE80211_QUEUE_STOP_REASON_CSA);
 
-	ieee80211_bss_info_change_notify(sdata, changed);
-
 	cfg80211_ch_switch_notify(sdata->dev, &local->csa_chandef);
 }
 
@@ -2936,20 +2944,56 @@ static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 	if (sdata->vif.csa_active)
 		return -EBUSY;
 
-	/* only handle AP for now. */
 	switch (sdata->vif.type) {
 	case NL80211_IFTYPE_AP:
+		sdata->csa_counter_offset_beacon =
+			params->counter_offset_beacon;
+		sdata->csa_counter_offset_presp = params->counter_offset_presp;
+		sdata->u.ap.next_beacon =
+			cfg80211_beacon_dup(&params->beacon_after);
+		if (!sdata->u.ap.next_beacon)
+			return -ENOMEM;
+
+		err = ieee80211_assign_beacon(sdata, &params->beacon_csa);
+		if (err < 0) {
+			kfree(sdata->u.ap.next_beacon);
+			return err;
+		}
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		if (!sdata->vif.bss_conf.ibss_joined)
+			return -EINVAL;
+
+		if (params->chandef.width != sdata->u.ibss.chandef.width)
+			return -EINVAL;
+
+		switch (params->chandef.width) {
+		case NL80211_CHAN_WIDTH_40:
+			if (cfg80211_get_chandef_type(&params->chandef) !=
+			    cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
+				return -EINVAL;
+		case NL80211_CHAN_WIDTH_5:
+		case NL80211_CHAN_WIDTH_10:
+		case NL80211_CHAN_WIDTH_20_NOHT:
+		case NL80211_CHAN_WIDTH_20:
+			break;
+		default:
+			return -EINVAL;
+		}
+
+		/* changes into another band are not supported */
+		if (sdata->u.ibss.chandef.chan->band !=
+		    params->chandef.chan->band)
+			return -EINVAL;
+
+		err = ieee80211_ibss_csa_beacon(sdata, params);
+		if (err < 0)
+			return err;
 		break;
 	default:
 		return -EOPNOTSUPP;
 	}
 
-	sdata->u.ap.next_beacon = cfg80211_beacon_dup(&params->beacon_after);
-	if (!sdata->u.ap.next_beacon)
-		return -ENOMEM;
-
-	sdata->csa_counter_offset_beacon = params->counter_offset_beacon;
-	sdata->csa_counter_offset_presp = params->counter_offset_presp;
 	sdata->csa_radar_required = params->radar_required;
 
 	if (params->block_tx)
@@ -2957,10 +3001,6 @@ static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 				IEEE80211_MAX_QUEUE_MAP,
 				IEEE80211_QUEUE_STOP_REASON_CSA);
 
-	err = ieee80211_assign_beacon(sdata, &params->beacon_csa);
-	if (err < 0)
-		return err;
-
 	local->csa_chandef = params->chandef;
 	sdata->vif.csa_active = true;
 
@@ -3014,7 +3054,8 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
 			need_offchan = true;
 		if (!ieee80211_is_action(mgmt->frame_control) ||
 		    mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
-		    mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED)
+		    mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
+		    mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
 			break;
 		rcu_read_lock();
 		sta = sta_info_get(sdata, mgmt->da);
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 0c3ec082e4f5..c0042136f1d8 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -39,7 +39,8 @@ ieee80211_ibss_build_presp(struct ieee80211_sub_if_data *sdata,
 			   const int beacon_int, const u32 basic_rates,
 			   const u16 capability, u64 tsf,
 			   struct cfg80211_chan_def *chandef,
-			   bool *have_higher_than_11mbit)
+			   bool *have_higher_than_11mbit,
+			   struct cfg80211_csa_settings *csa_settings)
 {
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 	struct ieee80211_local *local = sdata->local;
@@ -59,6 +60,7 @@ ieee80211_ibss_build_presp(struct ieee80211_sub_if_data *sdata,
 		    2 + 8 /* max Supported Rates */ +
 		    3 /* max DS params */ +
 		    4 /* IBSS params */ +
+		    5 /* Channel Switch Announcement */ +
 		    2 + (IEEE80211_MAX_SUPP_RATES - 8) +
 		    2 + sizeof(struct ieee80211_ht_cap) +
 		    2 + sizeof(struct ieee80211_ht_operation) +
@@ -135,6 +137,16 @@ ieee80211_ibss_build_presp(struct ieee80211_sub_if_data *sdata,
 	*pos++ = 0;
 	*pos++ = 0;
 
+	if (csa_settings) {
+		*pos++ = WLAN_EID_CHANNEL_SWITCH;
+		*pos++ = 3;
+		*pos++ = csa_settings->block_tx ? 1 : 0;
+		*pos++ = ieee80211_frequency_to_channel(
+				csa_settings->chandef.chan->center_freq);
+		sdata->csa_counter_offset_beacon = (pos - presp->head);
+		*pos++ = csa_settings->count;
+	}
+
 	/* put the remaining rates in WLAN_EID_EXT_SUPP_RATES */
 	if (rates_n > 8) {
 		*pos++ = WLAN_EID_EXT_SUPP_RATES;
@@ -276,7 +288,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 
 	presp = ieee80211_ibss_build_presp(sdata, beacon_int, basic_rates,
 					   capability, tsf, &chandef,
-					   &have_higher_than_11mbit);
+					   &have_higher_than_11mbit, NULL);
 	if (!presp)
 		return;
 
@@ -416,6 +428,109 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 				  tsf, false);
 }
 
+int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
+			      struct cfg80211_csa_settings *csa_settings)
+{
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+	struct beacon_data *presp, *old_presp;
+	struct cfg80211_bss *cbss;
+	const struct cfg80211_bss_ies *ies;
+	u16 capability;
+	u64 tsf;
+	int ret = 0;
+
+	sdata_assert_lock(sdata);
+
+	capability = WLAN_CAPABILITY_IBSS;
+
+	if (ifibss->privacy)
+		capability |= WLAN_CAPABILITY_PRIVACY;
+
+	cbss = cfg80211_get_bss(sdata->local->hw.wiphy, ifibss->chandef.chan,
+				ifibss->bssid, ifibss->ssid,
+				ifibss->ssid_len, WLAN_CAPABILITY_IBSS |
+				WLAN_CAPABILITY_PRIVACY,
+				capability);
+
+	if (WARN_ON(!cbss)) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	rcu_read_lock();
+	ies = rcu_dereference(cbss->ies);
+	tsf = ies->tsf;
+	rcu_read_unlock();
+	cfg80211_put_bss(sdata->local->hw.wiphy, cbss);
+
+	old_presp = rcu_dereference_protected(ifibss->presp,
+					  lockdep_is_held(&sdata->wdev.mtx));
+
+	presp = ieee80211_ibss_build_presp(sdata,
+					   sdata->vif.bss_conf.beacon_int,
+					   sdata->vif.bss_conf.basic_rates,
+					   capability, tsf, &ifibss->chandef,
+					   NULL, csa_settings);
+	if (!presp) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	rcu_assign_pointer(ifibss->presp, presp);
+	if (old_presp)
+		kfree_rcu(old_presp, rcu_head);
+
+	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
+ out:
+	return ret;
+}
+
+int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+	struct cfg80211_bss *cbss;
+	int err;
+	u16 capability;
+
+	sdata_lock(sdata);
+	/* update cfg80211 bss information with the new channel */
+	if (!is_zero_ether_addr(ifibss->bssid)) {
+		capability = WLAN_CAPABILITY_IBSS;
+
+		if (ifibss->privacy)
+			capability |= WLAN_CAPABILITY_PRIVACY;
+
+		cbss = cfg80211_get_bss(sdata->local->hw.wiphy,
+					ifibss->chandef.chan,
+					ifibss->bssid, ifibss->ssid,
+					ifibss->ssid_len, WLAN_CAPABILITY_IBSS |
+					WLAN_CAPABILITY_PRIVACY,
+					capability);
+		/* XXX: should not really modify cfg80211 data */
+		if (cbss) {
+			cbss->channel = sdata->local->csa_chandef.chan;
+			cfg80211_put_bss(sdata->local->hw.wiphy, cbss);
+		}
+	}
+
+	ifibss->chandef = sdata->local->csa_chandef;
+
+	/* generate the beacon */
+	err = ieee80211_ibss_csa_beacon(sdata, NULL);
+	sdata_unlock(sdata);
+	if (err < 0)
+		return err;
+
+	return 0;
+}
+
+void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+
+	cancel_work_sync(&ifibss->csa_connection_drop_work);
+}
+
 static struct sta_info *ieee80211_ibss_finish_sta(struct sta_info *sta)
 	__acquires(RCU)
 {
@@ -589,6 +704,204 @@ static void ieee80211_ibss_disconnect(struct ieee80211_sub_if_data *sdata)
 	ieee80211_vif_release_channel(sdata);
 }
 
+static void ieee80211_csa_connection_drop_work(struct work_struct *work)
+{
+	struct ieee80211_sub_if_data *sdata =
+		container_of(work, struct ieee80211_sub_if_data,
+			     u.ibss.csa_connection_drop_work);
+
+	ieee80211_ibss_disconnect(sdata);
+	synchronize_rcu();
+	skb_queue_purge(&sdata->skb_queue);
+
+	/* trigger a scan to find another IBSS network to join */
+	ieee80211_queue_work(&sdata->local->hw, &sdata->work);
+}
+
+static bool
+ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata,
+				  struct ieee802_11_elems *elems,
+				  bool beacon)
+{
+	struct cfg80211_csa_settings params;
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	struct ieee80211_chanctx *chanctx;
+	enum nl80211_channel_type ch_type;
+	int err, num_chanctx;
+	u32 sta_flags;
+	u8 mode;
+
+	if (sdata->vif.csa_active)
+		return true;
+
+	if (!sdata->vif.bss_conf.ibss_joined)
+		return false;
+
+	sta_flags = IEEE80211_STA_DISABLE_VHT;
+	switch (ifibss->chandef.width) {
+	case NL80211_CHAN_WIDTH_5:
+	case NL80211_CHAN_WIDTH_10:
+	case NL80211_CHAN_WIDTH_20_NOHT:
+		sta_flags |= IEEE80211_STA_DISABLE_HT;
+		/* fall through */
+	case NL80211_CHAN_WIDTH_20:
+		sta_flags |= IEEE80211_STA_DISABLE_40MHZ;
+		break;
+	default:
+		break;
+	}
+
+	memset(&params, 0, sizeof(params));
+	err = ieee80211_parse_ch_switch_ie(sdata, elems, beacon,
+					   ifibss->chandef.chan->band,
+					   sta_flags, ifibss->bssid,
+					   &params.count, &mode,
+					   &params.chandef);
+
+	/* can't switch to destination channel, fail */
+	if (err < 0)
+		goto disconnect;
+
+	/* did not contain a CSA */
+	if (err)
+		return false;
+
+	if (ifibss->chandef.chan->band != params.chandef.chan->band)
+		goto disconnect;
+
+	switch (ifibss->chandef.width) {
+	case NL80211_CHAN_WIDTH_20_NOHT:
+	case NL80211_CHAN_WIDTH_20:
+	case NL80211_CHAN_WIDTH_40:
+		/* keep our current HT mode (HT20/HT40+/HT40-), even if
+		 * another mode  has been announced. The mode is not adopted
+		 * within the beacon while doing CSA and we should therefore
+		 * keep the mode which we announce.
+		 */
+		ch_type = cfg80211_get_chandef_type(&ifibss->chandef);
+		cfg80211_chandef_create(&params.chandef, params.chandef.chan,
+					ch_type);
+		break;
+	case NL80211_CHAN_WIDTH_5:
+	case NL80211_CHAN_WIDTH_10:
+		if (params.chandef.width != ifibss->chandef.width) {
+			sdata_info(sdata,
+				   "IBSS %pM received channel switch from incompatible channel width (%d MHz, width:%d, CF1/2: %d/%d MHz), disconnecting\n",
+				   ifibss->bssid,
+				   params.chandef.chan->center_freq,
+				   params.chandef.width,
+				   params.chandef.center_freq1,
+				   params.chandef.center_freq2);
+			goto disconnect;
+		}
+		break;
+	default:
+		/* should not happen, sta_flags should prevent VHT modes. */
+		WARN_ON(1);
+		goto disconnect;
+	}
+
+	if (!cfg80211_chandef_usable(sdata->local->hw.wiphy, &params.chandef,
+				     IEEE80211_CHAN_DISABLED)) {
+		sdata_info(sdata,
+			   "IBSS %pM switches to unsupported channel (%d MHz, width:%d, CF1/2: %d/%d MHz), disconnecting\n",
+			   ifibss->bssid,
+			   params.chandef.chan->center_freq,
+			   params.chandef.width,
+			   params.chandef.center_freq1,
+			   params.chandef.center_freq2);
+		goto disconnect;
+	}
+
+	err = cfg80211_chandef_dfs_required(sdata->local->hw.wiphy,
+					    &params.chandef);
+	if (err < 0)
+		goto disconnect;
+	if (err) {
+		params.radar_required = true;
+
+		/* TODO: IBSS-DFS not (yet) supported, disconnect. */
+		goto disconnect;
+	}
+
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (!chanctx_conf) {
+		rcu_read_unlock();
+		goto disconnect;
+	}
+
+	/* don't handle for multi-VIF cases */
+	chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
+	if (chanctx->refcount > 1) {
+		rcu_read_unlock();
+		goto disconnect;
+	}
+	num_chanctx = 0;
+	list_for_each_entry_rcu(chanctx, &sdata->local->chanctx_list, list)
+		num_chanctx++;
+
+	if (num_chanctx > 1) {
+		rcu_read_unlock();
+		goto disconnect;
+	}
+	rcu_read_unlock();
+
+	/* all checks done, now perform the channel switch. */
+	ibss_dbg(sdata,
+		 "received channel switch announcement to go to channel %d MHz\n",
+		 params.chandef.chan->center_freq);
+
+	params.block_tx = !!mode;
+
+	ieee80211_ibss_csa_beacon(sdata, &params);
+	sdata->csa_radar_required = params.radar_required;
+
+	if (params.block_tx)
+		ieee80211_stop_queues_by_reason(&sdata->local->hw,
+				IEEE80211_MAX_QUEUE_MAP,
+				IEEE80211_QUEUE_STOP_REASON_CSA);
+
+	sdata->local->csa_chandef = params.chandef;
+	sdata->vif.csa_active = true;
+
+	ieee80211_bss_info_change_notify(sdata, err);
+	drv_channel_switch_beacon(sdata, &params.chandef);
+
+	return true;
+disconnect:
+	ibss_dbg(sdata, "Can't handle channel switch, disconnect\n");
+	ieee80211_queue_work(&sdata->local->hw,
+			     &ifibss->csa_connection_drop_work);
+
+	return true;
+}
+
+static void
+ieee80211_rx_mgmt_spectrum_mgmt(struct ieee80211_sub_if_data *sdata,
+				struct ieee80211_mgmt *mgmt, size_t len,
+				struct ieee80211_rx_status *rx_status,
+				struct ieee802_11_elems *elems)
+{
+	int required_len;
+
+	if (len < IEEE80211_MIN_ACTION_SIZE + 1)
+		return;
+
+	/* CSA is the only action we handle for now */
+	if (mgmt->u.action.u.measurement.action_code !=
+	    WLAN_ACTION_SPCT_CHL_SWITCH)
+		return;
+
+	required_len = IEEE80211_MIN_ACTION_SIZE +
+		       sizeof(mgmt->u.action.u.chan_switch);
+	if (len < required_len)
+		return;
+
+	ieee80211_ibss_process_chanswitch(sdata, elems, false);
+}
+
 static void ieee80211_rx_mgmt_deauth_ibss(struct ieee80211_sub_if_data *sdata,
 					  struct ieee80211_mgmt *mgmt,
 					  size_t len)
@@ -751,10 +1064,6 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 
 	/* check if we need to merge IBSS */
 
-	/* we use a fixed BSSID */
-	if (sdata->u.ibss.fixed_bssid)
-		goto put_bss;
-
 	/* not an IBSS */
 	if (!(cbss->capability & WLAN_CAPABILITY_IBSS))
 		goto put_bss;
@@ -770,10 +1079,18 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
 				sdata->u.ibss.ssid_len))
 		goto put_bss;
 
+	/* process channel switch */
+	if (ieee80211_ibss_process_chanswitch(sdata, elems, true))
+		goto put_bss;
+
 	/* same BSSID */
 	if (ether_addr_equal(cbss->bssid, sdata->u.ibss.bssid))
 		goto put_bss;
 
+	/* we use a fixed BSSID */
+	if (sdata->u.ibss.fixed_bssid)
+		goto put_bss;
+
 	if (ieee80211_have_rx_timestamp(rx_status)) {
 		/* time when timestamp field was received */
 		rx_timestamp =
@@ -1142,6 +1459,8 @@ void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_rx_status *rx_status;
 	struct ieee80211_mgmt *mgmt;
 	u16 fc;
+	struct ieee802_11_elems elems;
+	int ies_len;
 
 	rx_status = IEEE80211_SKB_RXCB(skb);
 	mgmt = (struct ieee80211_mgmt *) skb->data;
@@ -1167,6 +1486,27 @@ void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 	case IEEE80211_STYPE_DEAUTH:
 		ieee80211_rx_mgmt_deauth_ibss(sdata, mgmt, skb->len);
 		break;
+	case IEEE80211_STYPE_ACTION:
+		switch (mgmt->u.action.category) {
+		case WLAN_CATEGORY_SPECTRUM_MGMT:
+			ies_len = skb->len -
+				  offsetof(struct ieee80211_mgmt,
+					   u.action.u.chan_switch.variable);
+
+			if (ies_len < 0)
+				break;
+
+			ieee802_11_parse_elems(
+				mgmt->u.action.u.chan_switch.variable,
+				ies_len, true, &elems);
+
+			if (elems.parse_error)
+				break;
+
+			ieee80211_rx_mgmt_spectrum_mgmt(sdata, mgmt, skb->len,
+							rx_status, &elems);
+			break;
+		}
 	}
 
  mgmt_out:
@@ -1233,6 +1573,8 @@ void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata)
 		    (unsigned long) sdata);
 	INIT_LIST_HEAD(&ifibss->incomplete_stations);
 	spin_lock_init(&ifibss->incomplete_lock);
+	INIT_WORK(&ifibss->csa_connection_drop_work,
+		  ieee80211_csa_connection_drop_work);
 }
 
 /* scan finished notification */
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 7f0e6da8e6f8..3a87c8976a32 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -486,6 +486,7 @@ struct ieee80211_if_managed {
 
 struct ieee80211_if_ibss {
 	struct timer_list timer;
+	struct work_struct csa_connection_drop_work;
 
 	unsigned long last_scan_completed;
 
@@ -1329,6 +1330,10 @@ int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 				   struct sk_buff *skb);
+int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
+			      struct cfg80211_csa_settings *csa_settings);
+int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
+void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
 
 /* mesh code */
 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index fcecd633514e..e48f103b9ade 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -766,6 +766,10 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata,
 	if (sdata->vif.type == NL80211_IFTYPE_STATION)
 		ieee80211_mgd_stop(sdata);
 
+	if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+		ieee80211_ibss_stop(sdata);
+
+
 	/*
 	 * Remove all stations associated with this interface.
 	 *
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 54395d7583ba..8e908e17e248 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2402,7 +2402,8 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 		return RX_DROP_UNUSABLE;
 
 	if (!rx->sta && mgmt->u.action.category != WLAN_CATEGORY_PUBLIC &&
-	    mgmt->u.action.category != WLAN_CATEGORY_SELF_PROTECTED)
+	    mgmt->u.action.category != WLAN_CATEGORY_SELF_PROTECTED &&
+	    mgmt->u.action.category != WLAN_CATEGORY_SPECTRUM_MGMT)
 		return RX_DROP_UNUSABLE;
 
 	if (!(status->rx_flags & IEEE80211_RX_RA_MATCH))
@@ -2566,31 +2567,46 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 
 		goto queue;
 	case WLAN_CATEGORY_SPECTRUM_MGMT:
-		if (status->band != IEEE80211_BAND_5GHZ)
-			break;
-
-		if (sdata->vif.type != NL80211_IFTYPE_STATION)
-			break;
-
 		/* verify action_code is present */
 		if (len < IEEE80211_MIN_ACTION_SIZE + 1)
 			break;
 
 		switch (mgmt->u.action.u.measurement.action_code) {
 		case WLAN_ACTION_SPCT_MSR_REQ:
+			if (status->band != IEEE80211_BAND_5GHZ)
+				break;
+
 			if (len < (IEEE80211_MIN_ACTION_SIZE +
 				   sizeof(mgmt->u.action.u.measurement)))
 				break;
+
+			if (sdata->vif.type != NL80211_IFTYPE_STATION)
+				break;
+
 			ieee80211_process_measurement_req(sdata, mgmt, len);
 			goto handled;
-		case WLAN_ACTION_SPCT_CHL_SWITCH:
-			if (sdata->vif.type != NL80211_IFTYPE_STATION)
+		case WLAN_ACTION_SPCT_CHL_SWITCH: {
+			u8 *bssid;
+			if (len < (IEEE80211_MIN_ACTION_SIZE +
+				   sizeof(mgmt->u.action.u.chan_switch)))
 				break;
 
-			if (!ether_addr_equal(mgmt->bssid, sdata->u.mgd.bssid))
+			if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+			    sdata->vif.type != NL80211_IFTYPE_ADHOC)
+				break;
+
+			if (sdata->vif.type == NL80211_IFTYPE_STATION)
+				bssid = sdata->u.mgd.bssid;
+			else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+				bssid = sdata->u.ibss.bssid;
+			else
+				break;
+
+			if (!ether_addr_equal(mgmt->bssid, bssid))
 				break;
 
 			goto queue;
+			}
 		}
 		break;
 	case WLAN_CATEGORY_SA_QUERY:
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 102ce8adf2d1..4fcbf634b548 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -2357,15 +2357,31 @@ static void ieee80211_update_csa(struct ieee80211_sub_if_data *sdata,
 	struct probe_resp *resp;
 	int counter_offset_beacon = sdata->csa_counter_offset_beacon;
 	int counter_offset_presp = sdata->csa_counter_offset_presp;
+	u8 *beacon_data;
+	size_t beacon_data_len;
+
+	switch (sdata->vif.type) {
+	case NL80211_IFTYPE_AP:
+		beacon_data = beacon->tail;
+		beacon_data_len = beacon->tail_len;
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		beacon_data = beacon->head;
+		beacon_data_len = beacon->head_len;
+		break;
+	default:
+		return;
+	}
+	if (WARN_ON(counter_offset_beacon >= beacon_data_len))
+		return;
 
 	/* warn if the driver did not check for/react to csa completeness */
-	if (WARN_ON(((u8 *)beacon->tail)[counter_offset_beacon] == 0))
+	if (WARN_ON(beacon_data[counter_offset_beacon] == 0))
 		return;
 
-	((u8 *)beacon->tail)[counter_offset_beacon]--;
+	beacon_data[counter_offset_beacon]--;
 
-	if (sdata->vif.type == NL80211_IFTYPE_AP &&
-	    counter_offset_presp) {
+	if (sdata->vif.type == NL80211_IFTYPE_AP && counter_offset_presp) {
 		rcu_read_lock();
 		resp = rcu_dereference(sdata->u.ap.probe_resp);
 
@@ -2400,6 +2416,15 @@ bool ieee80211_csa_is_complete(struct ieee80211_vif *vif)
 			goto out;
 		beacon_data = beacon->tail;
 		beacon_data_len = beacon->tail_len;
+	} else if (vif->type == NL80211_IFTYPE_ADHOC) {
+		struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+
+		beacon = rcu_dereference(ifibss->presp);
+		if (!beacon)
+			goto out;
+
+		beacon_data = beacon->head;
+		beacon_data_len = beacon->head_len;
 	} else {
 		WARN_ON(1);
 		goto out;
@@ -2484,6 +2509,10 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
 		if (!presp)
 			goto out;
 
+		if (sdata->vif.csa_active)
+			ieee80211_update_csa(sdata, presp);
+
+
 		skb = dev_alloc_skb(local->tx_headroom + presp->head_len);
 		if (!skb)
 			goto out;
-- 
cgit 


From 9449410f3b30a27824aa02adec485e18b740b756 Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Wed, 28 Aug 2013 13:41:32 +0200
Subject: mac80211: send a CSA action frame when changing channel

IBSS members may not immediately be able to send out their beacon when
performing CSA, therefore also send a CSA action frame.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/ibss.c | 60 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 60 insertions(+)

diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index c0042136f1d8..5ea9b3ae303e 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -428,6 +428,60 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 				  tsf, false);
 }
 
+static int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
+				     struct cfg80211_csa_settings *csa_settings)
+{
+	struct sk_buff *skb;
+	struct ieee80211_mgmt *mgmt;
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+	struct ieee80211_local *local = sdata->local;
+	int freq;
+	int hdr_len = offsetof(struct ieee80211_mgmt, u.action.u.chan_switch) +
+		      sizeof(mgmt->u.action.u.chan_switch);
+	u8 *pos;
+
+	skb = dev_alloc_skb(local->tx_headroom + hdr_len +
+			    5 +	/* channel switch announcement element */
+			    3);	/* secondary channel offset element */
+	if (!skb)
+		return -1;
+
+	skb_reserve(skb, local->tx_headroom);
+	mgmt = (struct ieee80211_mgmt *)skb_put(skb, hdr_len);
+	memset(mgmt, 0, hdr_len);
+	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+					  IEEE80211_STYPE_ACTION);
+
+	eth_broadcast_addr(mgmt->da);
+	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
+	memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN);
+	mgmt->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT;
+	mgmt->u.action.u.chan_switch.action_code = WLAN_ACTION_SPCT_CHL_SWITCH;
+	pos = skb_put(skb, 5);
+	*pos++ = WLAN_EID_CHANNEL_SWITCH;			/* EID */
+	*pos++ = 3;						/* IE length */
+	*pos++ = csa_settings->block_tx ? 1 : 0;		/* CSA mode */
+	freq = csa_settings->chandef.chan->center_freq;
+	*pos++ = ieee80211_frequency_to_channel(freq);		/* channel */
+	*pos++ = csa_settings->count;				/* count */
+
+	if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_40) {
+		enum nl80211_channel_type ch_type;
+
+		skb_put(skb, 3);
+		*pos++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET;	/* EID */
+		*pos++ = 1;					/* IE length */
+		ch_type = cfg80211_get_chandef_type(&csa_settings->chandef);
+		if (ch_type == NL80211_CHAN_HT40PLUS)
+			*pos++ = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
+		else
+			*pos++ = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
+	}
+
+	ieee80211_tx_skb(sdata, skb);
+	return 0;
+}
+
 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
 			      struct cfg80211_csa_settings *csa_settings)
 {
@@ -480,6 +534,12 @@ int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
 	if (old_presp)
 		kfree_rcu(old_presp, rcu_head);
 
+	/* it might not send the beacon for a while. send an action frame
+	 * immediately to announce the channel switch.
+	 */
+	if (csa_settings)
+		ieee80211_send_action_csa(sdata, csa_settings);
+
 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
  out:
 	return ret;
-- 
cgit 


From ee4bc9e75811d2c0cb5f2a2fc5b51ff037a01f47 Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Wed, 28 Aug 2013 13:41:33 +0200
Subject: nl80211: enable IBSS support for channel switch announcements

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/wireless/nl80211.c | 49 ++++++++++++++++++++++++++++++++++---------------
 1 file changed, 34 insertions(+), 15 deletions(-)

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index af8d84a4a5b2..ae617112b8f5 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -5634,15 +5634,26 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
 	static struct nlattr *csa_attrs[NL80211_ATTR_MAX+1];
 	u8 radar_detect_width = 0;
 	int err;
+	bool need_new_beacon = false;
 
 	if (!rdev->ops->channel_switch ||
 	    !(rdev->wiphy.flags & WIPHY_FLAG_HAS_CHANNEL_SWITCH))
 		return -EOPNOTSUPP;
 
-	/* may add IBSS support later */
-	if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP &&
-	    dev->ieee80211_ptr->iftype != NL80211_IFTYPE_P2P_GO)
+	switch (dev->ieee80211_ptr->iftype) {
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_P2P_GO:
+		need_new_beacon = true;
+
+		/* useless if AP is not running */
+		if (!wdev->beacon_interval)
+			return -EINVAL;
+		break;
+	case NL80211_IFTYPE_ADHOC:
+		break;
+	default:
 		return -EOPNOTSUPP;
+	}
 
 	memset(&params, 0, sizeof(params));
 
@@ -5651,15 +5662,16 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
 		return -EINVAL;
 
 	/* only important for AP, IBSS and mesh create IEs internally */
-	if (!info->attrs[NL80211_ATTR_CSA_IES])
-		return -EINVAL;
-
-	/* useless if AP is not running */
-	if (!wdev->beacon_interval)
+	if (need_new_beacon &&
+	    (!info->attrs[NL80211_ATTR_CSA_IES] ||
+	     !info->attrs[NL80211_ATTR_CSA_C_OFF_BEACON]))
 		return -EINVAL;
 
 	params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
 
+	if (!need_new_beacon)
+		goto skip_beacons;
+
 	err = nl80211_parse_beacon(info->attrs, &params.beacon_after);
 	if (err)
 		return err;
@@ -5699,6 +5711,7 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
 			return -EINVAL;
 	}
 
+skip_beacons:
 	err = nl80211_parse_chandef(rdev, info, &params.chandef);
 	if (err)
 		return err;
@@ -5706,12 +5719,17 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
 	if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
 		return -EINVAL;
 
-	err = cfg80211_chandef_dfs_required(wdev->wiphy, &params.chandef);
-	if (err < 0) {
-		return err;
-	} else if (err) {
-		radar_detect_width = BIT(params.chandef.width);
-		params.radar_required = true;
+	/* DFS channels are only supported for AP/P2P GO ... for now. */
+	if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_AP ||
+	    dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO) {
+		err = cfg80211_chandef_dfs_required(wdev->wiphy,
+						    &params.chandef);
+		if (err < 0) {
+			return err;
+		} else if (err) {
+			radar_detect_width = BIT(params.chandef.width);
+			params.radar_required = true;
+		}
 	}
 
 	err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
@@ -10740,7 +10758,8 @@ void cfg80211_ch_switch_notify(struct net_device *dev,
 	wdev_lock(wdev);
 
 	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
-		    wdev->iftype != NL80211_IFTYPE_P2P_GO))
+		    wdev->iftype != NL80211_IFTYPE_P2P_GO &&
+		    wdev->iftype != NL80211_IFTYPE_ADHOC))
 		goto out;
 
 	wdev->channel = chandef->chan;
-- 
cgit 


From 4525181245c0f4005788c17315aee4371662ddea Mon Sep 17 00:00:00 2001
From: Dong Aisheng <b29396@freescale.com>
Date: Fri, 13 Sep 2013 19:11:30 +0800
Subject: mmc: sdhci: add hooks for platform specific tuning

The tuning of some platforms may not follow the standard host control
spec v3.0, e.g. Freescale uSDHC on i.MX6Q/DL.
Add a hook here to allow execute platform specific tuning instead of
standard host controller tuning.

The hook only replaces the tuning process, so it's placed after tuning
checking and before the real tuning process.

Some notes for the tuning hook:
1) it needs handle lock itself if it wants to access host controller
according platform specific implementation.
2) do not need to handle runtime pm since it executes with runtime pm
get already.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci.c | 8 ++++++++
 drivers/mmc/host/sdhci.h | 1 +
 2 files changed, 9 insertions(+)

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 7a7fb4f0d5a4..072d78ce2664 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1875,6 +1875,14 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
 		return 0;
 	}
 
+	if (host->ops->platform_execute_tuning) {
+		spin_unlock(&host->lock);
+		enable_irq(host->irq);
+		err = host->ops->platform_execute_tuning(host, opcode);
+		sdhci_runtime_pm_put(host);
+		return err;
+	}
+
 	sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2);
 
 	/*
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index b037f188fe44..976c14b5aaf9 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -288,6 +288,7 @@ struct sdhci_ops {
 	unsigned int    (*get_ro)(struct sdhci_host *host);
 	void	(*platform_reset_enter)(struct sdhci_host *host, u8 mask);
 	void	(*platform_reset_exit)(struct sdhci_host *host, u8 mask);
+	int	(*platform_execute_tuning)(struct sdhci_host *host, u32 opcode);
 	int	(*set_uhs_signaling)(struct sdhci_host *host, unsigned int uhs);
 	void	(*hw_reset)(struct sdhci_host *host);
 	void	(*platform_suspend)(struct sdhci_host *host);
-- 
cgit 


From c0e55129b09f3b9fee271e5fe23332393ab4c2a9 Mon Sep 17 00:00:00 2001
From: Dong Aisheng <b29396@freescale.com>
Date: Fri, 13 Sep 2013 19:11:31 +0800
Subject: mmc: sdhci: allow platform access of sdhci_send_command

It helps for platform code to use it send tuning commands.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci.c | 4 ++--
 drivers/mmc/host/sdhci.h | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 072d78ce2664..66bce7a8e996 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -49,7 +49,6 @@ static unsigned int debug_quirks2;
 
 static void sdhci_finish_data(struct sdhci_host *);
 
-static void sdhci_send_command(struct sdhci_host *, struct mmc_command *);
 static void sdhci_finish_command(struct sdhci_host *);
 static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode);
 static void sdhci_tuning_timer(unsigned long data);
@@ -981,7 +980,7 @@ static void sdhci_finish_data(struct sdhci_host *host)
 		tasklet_schedule(&host->finish_tasklet);
 }
 
-static void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd)
+void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd)
 {
 	int flags;
 	u32 mask;
@@ -1053,6 +1052,7 @@ static void sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd)
 
 	sdhci_writew(host, SDHCI_MAKE_CMD(cmd->opcode, flags), SDHCI_COMMAND);
 }
+EXPORT_SYMBOL_GPL(sdhci_send_command);
 
 static void sdhci_finish_command(struct sdhci_host *host)
 {
diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
index 976c14b5aaf9..0a3ed01887db 100644
--- a/drivers/mmc/host/sdhci.h
+++ b/drivers/mmc/host/sdhci.h
@@ -394,6 +394,8 @@ static inline void *sdhci_priv(struct sdhci_host *host)
 extern void sdhci_card_detect(struct sdhci_host *host);
 extern int sdhci_add_host(struct sdhci_host *host);
 extern void sdhci_remove_host(struct sdhci_host *host, int dead);
+extern void sdhci_send_command(struct sdhci_host *host,
+				struct mmc_command *cmd);
 
 #ifdef CONFIG_PM
 extern int sdhci_suspend_host(struct sdhci_host *host);
-- 
cgit 


From d31fc00a71b4f3a52d23c5a995ccd63e50a2c877 Mon Sep 17 00:00:00 2001
From: Dong Aisheng <b29396@freescale.com>
Date: Fri, 13 Sep 2013 19:11:32 +0800
Subject: mmc: sdhci-esdhc: move common esdhc_set_clock to platform driver

We need a lot of imx6 specific things into common esdhc_set_clock
for support SD3.0 and eMMC DDR mode which is not needed for power pc
platforms, so esdhc_set_clock seems not so common anymore.

Instead of keeping add platform specfics things into this common API,
we choose to move that code into platform driver itself to handle.
This can also exclude the dependency between imx and power pc on this
headfile and is easy for maintain in the future.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 35 +++++++++++++++++++++++++++++++++--
 drivers/mmc/host/sdhci-esdhc.h     | 37 -------------------------------------
 drivers/mmc/host/sdhci-of-esdhc.c  | 35 +++++++++++++++++++++++++++++++++--
 3 files changed, 66 insertions(+), 41 deletions(-)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index abc8cf01e6e3..67eaec92e333 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -409,8 +409,39 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host,
 					 unsigned int clock)
 {
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
-
-	esdhc_set_clock(host, clock, clk_get_rate(pltfm_host->clk));
+	unsigned int host_clock = clk_get_rate(pltfm_host->clk);
+	int pre_div = 2;
+	int div = 1;
+	u32 temp;
+
+	if (clock == 0)
+		goto out;
+
+	temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL);
+	temp &= ~(ESDHC_CLOCK_IPGEN | ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN
+		| ESDHC_CLOCK_MASK);
+	sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL);
+
+	while (host_clock / pre_div / 16 > clock && pre_div < 256)
+		pre_div *= 2;
+
+	while (host_clock / pre_div / div > clock && div < 16)
+		div++;
+
+	dev_dbg(mmc_dev(host->mmc), "desired SD clock: %d, actual: %d\n",
+		clock, host_clock / pre_div / div);
+
+	pre_div >>= 1;
+	div--;
+
+	temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL);
+	temp |= (ESDHC_CLOCK_IPGEN | ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN
+		| (div << ESDHC_DIVIDER_SHIFT)
+		| (pre_div << ESDHC_PREDIV_SHIFT));
+	sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL);
+	mdelay(1);
+out:
+	host->clock = clock;
 }
 
 static unsigned int esdhc_pltfm_get_ro(struct sdhci_host *host)
diff --git a/drivers/mmc/host/sdhci-esdhc.h b/drivers/mmc/host/sdhci-esdhc.h
index a2a06420e463..a7d9f95a7b03 100644
--- a/drivers/mmc/host/sdhci-esdhc.h
+++ b/drivers/mmc/host/sdhci-esdhc.h
@@ -49,41 +49,4 @@
 
 #define ESDHC_HOST_CONTROL_RES	0x05
 
-static inline void esdhc_set_clock(struct sdhci_host *host, unsigned int clock,
-				   unsigned int host_clock)
-{
-	int pre_div = 2;
-	int div = 1;
-	u32 temp;
-
-	if (clock == 0)
-		goto out;
-
-	temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL);
-	temp &= ~(ESDHC_CLOCK_IPGEN | ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN
-		| ESDHC_CLOCK_MASK);
-	sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL);
-
-	while (host_clock / pre_div / 16 > clock && pre_div < 256)
-		pre_div *= 2;
-
-	while (host_clock / pre_div / div > clock && div < 16)
-		div++;
-
-	dev_dbg(mmc_dev(host->mmc), "desired SD clock: %d, actual: %d\n",
-		clock, host_clock / pre_div / div);
-
-	pre_div >>= 1;
-	div--;
-
-	temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL);
-	temp |= (ESDHC_CLOCK_IPGEN | ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN
-		| (div << ESDHC_DIVIDER_SHIFT)
-		| (pre_div << ESDHC_PREDIV_SHIFT));
-	sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL);
-	mdelay(1);
-out:
-	host->clock = clock;
-}
-
 #endif /* _DRIVERS_MMC_SDHCI_ESDHC_H */
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index e328252ebf2a..b1605a1747c4 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -199,6 +199,14 @@ static unsigned int esdhc_of_get_min_clock(struct sdhci_host *host)
 
 static void esdhc_of_set_clock(struct sdhci_host *host, unsigned int clock)
 {
+
+	int pre_div = 2;
+	int div = 1;
+	u32 temp;
+
+	if (clock == 0)
+		goto out;
+
 	/* Workaround to reduce the clock frequency for p1010 esdhc */
 	if (of_find_compatible_node(NULL, NULL, "fsl,p1010-esdhc")) {
 		if (clock > 20000000)
@@ -207,8 +215,31 @@ static void esdhc_of_set_clock(struct sdhci_host *host, unsigned int clock)
 			clock -= 5000000;
 	}
 
-	/* Set the clock */
-	esdhc_set_clock(host, clock, host->max_clk);
+	temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL);
+	temp &= ~(ESDHC_CLOCK_IPGEN | ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN
+		| ESDHC_CLOCK_MASK);
+	sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL);
+
+	while (host->max_clk / pre_div / 16 > clock && pre_div < 256)
+		pre_div *= 2;
+
+	while (host->max_clk / pre_div / div > clock && div < 16)
+		div++;
+
+	dev_dbg(mmc_dev(host->mmc), "desired SD clock: %d, actual: %d\n",
+		clock, host_clock / pre_div / div);
+
+	pre_div >>= 1;
+	div--;
+
+	temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL);
+	temp |= (ESDHC_CLOCK_IPGEN | ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN
+		| (div << ESDHC_DIVIDER_SHIFT)
+		| (pre_div << ESDHC_PREDIV_SHIFT));
+	sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL);
+	mdelay(1);
+out:
+	host->clock = clock;
 }
 
 #ifdef CONFIG_PM
-- 
cgit 


From fed2f6e2d42e4bcdec5ea357e7a9db8602744753 Mon Sep 17 00:00:00 2001
From: Dong Aisheng <b29396@freescale.com>
Date: Fri, 13 Sep 2013 19:11:33 +0800
Subject: mmc: sdhci-esdhc-imx: support real clock on and off for imx6q

The signal voltage switch flow requires to shutdown and output
clock in a specific sequence according to standard host controller
v3.0 spec. In that timing, the card must really receive clock or not.

However, for i.MX6Q, the uSDHC will not output clock even the clock
is enabled until there is command or data in transfer on the bus,
which will then cause singal voltage switch always to fail.

For i.MX6Q, we clear ESDHC_VENDOR_SPEC_FRC_SDCLK_ON bit to let
controller to gate off clock automatically and set that bit
to force clock output if clock is on.

This is required by SD3.0 support.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 67eaec92e333..37fafd7df964 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -34,6 +34,7 @@
 /* VENDOR SPEC register */
 #define ESDHC_VENDOR_SPEC		0xc0
 #define  ESDHC_VENDOR_SPEC_SDIO_QUIRK	(1 << 1)
+#define  ESDHC_VENDOR_SPEC_FRC_SDCLK_ON	(1 << 8)
 #define ESDHC_WTMK_LVL			0x44
 #define ESDHC_MIX_CTRL			0x48
 #define  ESDHC_MIX_CTRL_AC23EN		(1 << 7)
@@ -409,13 +410,20 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host,
 					 unsigned int clock)
 {
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct pltfm_imx_data *imx_data = pltfm_host->priv;
 	unsigned int host_clock = clk_get_rate(pltfm_host->clk);
 	int pre_div = 2;
 	int div = 1;
-	u32 temp;
+	u32 temp, val;
 
-	if (clock == 0)
+	if (clock == 0) {
+		if (is_imx6q_usdhc(imx_data)) {
+			val = readl(host->ioaddr + ESDHC_VENDOR_SPEC);
+			writel(val & ~ESDHC_VENDOR_SPEC_FRC_SDCLK_ON,
+					host->ioaddr + ESDHC_VENDOR_SPEC);
+		}
 		goto out;
+	}
 
 	temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL);
 	temp &= ~(ESDHC_CLOCK_IPGEN | ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN
@@ -439,6 +447,13 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host,
 		| (div << ESDHC_DIVIDER_SHIFT)
 		| (pre_div << ESDHC_PREDIV_SHIFT));
 	sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL);
+
+	if (is_imx6q_usdhc(imx_data)) {
+		val = readl(host->ioaddr + ESDHC_VENDOR_SPEC);
+		writel(val | ESDHC_VENDOR_SPEC_FRC_SDCLK_ON,
+		host->ioaddr + ESDHC_VENDOR_SPEC);
+	}
+
 	mdelay(1);
 out:
 	host->clock = clock;
-- 
cgit 


From 0322191e62984b94d1b2ae5ff322112e1fa1ef1a Mon Sep 17 00:00:00 2001
From: Dong Aisheng <b29396@freescale.com>
Date: Fri, 13 Sep 2013 19:11:34 +0800
Subject: mmc: sdhci-esdhc-imx: add sd3.0 SDR clock tuning support

Freescale i.MX6Q/DL uSDHC clock tuning progress is a little different from
the standard tuning process defined in host controller spec v3.0.
Thus we use platform_execute_tuning instead of standard sdhci tuning.

The main difference are:
1) not only generate Buffer Read Ready interrupt when tuning is performing.
   It generates all other DATA interrupts like the normal data command.
2) SDHCI_CTRL_EXEC_TUNING is not automatically cleared by HW,
   instead it's controlled by SW.
3) SDHCI_CTRL_TUNED_CLK is not automatically set by HW,
   it's controlled by SW.
4) the clock delay for every tuning is set by SW.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 196 ++++++++++++++++++++++++++++++++++++-
 1 file changed, 195 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 37fafd7df964..f906c206901d 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -34,13 +34,25 @@
 /* VENDOR SPEC register */
 #define ESDHC_VENDOR_SPEC		0xc0
 #define  ESDHC_VENDOR_SPEC_SDIO_QUIRK	(1 << 1)
+#define  ESDHC_VENDOR_SPEC_VSELECT	(1 << 1)
 #define  ESDHC_VENDOR_SPEC_FRC_SDCLK_ON	(1 << 8)
 #define ESDHC_WTMK_LVL			0x44
 #define ESDHC_MIX_CTRL			0x48
 #define  ESDHC_MIX_CTRL_AC23EN		(1 << 7)
+#define  ESDHC_MIX_CTRL_EXE_TUNE	(1 << 22)
+#define  ESDHC_MIX_CTRL_SMPCLK_SEL	(1 << 23)
+#define  ESDHC_MIX_CTRL_FBCLK_SEL	(1 << 25)
 /* Bits 3 and 6 are not SDHCI standard definitions */
 #define  ESDHC_MIX_CTRL_SDHCI_MASK	0xb7
 
+/* tune control register */
+#define ESDHC_TUNE_CTRL_STATUS		0x68
+#define  ESDHC_TUNE_CTRL_STEP		1
+#define  ESDHC_TUNE_CTRL_MIN		0
+#define  ESDHC_TUNE_CTRL_MAX		((1 << 7) - 1)
+
+#define ESDHC_TUNING_BLOCK_PATTERN_LEN	64
+
 /*
  * Our interpretation of the SDHCI_HOST_CONTROL register
  */
@@ -91,7 +103,7 @@ struct pltfm_imx_data {
 		MULTIBLK_IN_PROCESS, /* exact multiblock cmd in process */
 		WAIT_FOR_INT,        /* sent CMD12, waiting for response INT */
 	} multiblock_status;
-
+	u32 uhs_mode;
 };
 
 static struct platform_device_id imx_esdhc_devtype[] = {
@@ -165,6 +177,16 @@ static u32 esdhc_readl_le(struct sdhci_host *host, int reg)
 	struct pltfm_imx_data *imx_data = pltfm_host->priv;
 	u32 val = readl(host->ioaddr + reg);
 
+	if (unlikely(reg == SDHCI_PRESENT_STATE)) {
+		u32 fsl_prss = val;
+		/* save the least 20 bits */
+		val = fsl_prss & 0x000FFFFF;
+		/* move dat[0-3] bits */
+		val |= (fsl_prss & 0x0F000000) >> 4;
+		/* move cmd line bit */
+		val |= (fsl_prss & 0x00800000) << 1;
+	}
+
 	if (unlikely(reg == SDHCI_CAPABILITIES)) {
 		/* In FSL esdhc IC module, only bit20 is used to indicate the
 		 * ADMA2 capability of esdhc, but this bit is messed up on
@@ -179,6 +201,17 @@ static u32 esdhc_readl_le(struct sdhci_host *host, int reg)
 		}
 	}
 
+	if (unlikely(reg == SDHCI_CAPABILITIES_1) && is_imx6q_usdhc(imx_data))
+		val = SDHCI_SUPPORT_DDR50 | SDHCI_SUPPORT_SDR104
+				| SDHCI_SUPPORT_SDR50;
+
+	if (unlikely(reg == SDHCI_MAX_CURRENT) && is_imx6q_usdhc(imx_data)) {
+		val = 0;
+		val |= 0xFF << SDHCI_MAX_CURRENT_330_SHIFT;
+		val |= 0xFF << SDHCI_MAX_CURRENT_300_SHIFT;
+		val |= 0xFF << SDHCI_MAX_CURRENT_180_SHIFT;
+	}
+
 	if (unlikely(reg == SDHCI_INT_STATUS)) {
 		if (val & ESDHC_INT_VENDOR_SPEC_DMA_ERR) {
 			val &= ~ESDHC_INT_VENDOR_SPEC_DMA_ERR;
@@ -257,6 +290,8 @@ static u16 esdhc_readw_le(struct sdhci_host *host, int reg)
 {
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct pltfm_imx_data *imx_data = pltfm_host->priv;
+	u16 ret = 0;
+	u32 val;
 
 	if (unlikely(reg == SDHCI_HOST_VERSION)) {
 		reg ^= 2;
@@ -269,6 +304,25 @@ static u16 esdhc_readw_le(struct sdhci_host *host, int reg)
 		}
 	}
 
+	if (unlikely(reg == SDHCI_HOST_CONTROL2)) {
+		val = readl(host->ioaddr + ESDHC_VENDOR_SPEC);
+		if (val & ESDHC_VENDOR_SPEC_VSELECT)
+			ret |= SDHCI_CTRL_VDD_180;
+
+		if (is_imx6q_usdhc(imx_data)) {
+			val = readl(host->ioaddr + ESDHC_MIX_CTRL);
+			if (val & ESDHC_MIX_CTRL_EXE_TUNE)
+				ret |= SDHCI_CTRL_EXEC_TUNING;
+			if (val & ESDHC_MIX_CTRL_SMPCLK_SEL)
+				ret |= SDHCI_CTRL_TUNED_CLK;
+		}
+
+		ret |= (imx_data->uhs_mode & SDHCI_CTRL_UHS_MASK);
+		ret &= ~SDHCI_CTRL_PRESET_VAL_ENABLE;
+
+		return ret;
+	}
+
 	return readw(host->ioaddr + reg);
 }
 
@@ -276,8 +330,32 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg)
 {
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct pltfm_imx_data *imx_data = pltfm_host->priv;
+	u32 new_val = 0;
 
 	switch (reg) {
+	case SDHCI_CLOCK_CONTROL:
+		new_val = readl(host->ioaddr + ESDHC_VENDOR_SPEC);
+		if (val & SDHCI_CLOCK_CARD_EN)
+			new_val |= ESDHC_VENDOR_SPEC_FRC_SDCLK_ON;
+		else
+			new_val &= ~ESDHC_VENDOR_SPEC_FRC_SDCLK_ON;
+			writel(new_val, host->ioaddr + ESDHC_VENDOR_SPEC);
+		return;
+	case SDHCI_HOST_CONTROL2:
+		new_val = readl(host->ioaddr + ESDHC_VENDOR_SPEC);
+		if (val & SDHCI_CTRL_VDD_180)
+			new_val |= ESDHC_VENDOR_SPEC_VSELECT;
+		else
+			new_val &= ~ESDHC_VENDOR_SPEC_VSELECT;
+		writel(new_val, host->ioaddr + ESDHC_VENDOR_SPEC);
+		imx_data->uhs_mode = val & SDHCI_CTRL_UHS_MASK;
+		new_val = readl(host->ioaddr + ESDHC_MIX_CTRL);
+		if (val & SDHCI_CTRL_TUNED_CLK)
+			new_val |= ESDHC_MIX_CTRL_SMPCLK_SEL;
+		else
+			new_val &= ~ESDHC_MIX_CTRL_SMPCLK_SEL;
+		writel(new_val , host->ioaddr + ESDHC_MIX_CTRL);
+		return;
 	case SDHCI_TRANSFER_MODE:
 		if ((imx_data->flags & ESDHC_FLAG_MULTIBLK_NO_INT)
 				&& (host->cmd->opcode == SD_IO_RW_EXTENDED)
@@ -500,6 +578,121 @@ static int esdhc_pltfm_bus_width(struct sdhci_host *host, int width)
 	return 0;
 }
 
+static void esdhc_prepare_tuning(struct sdhci_host *host, u32 val)
+{
+	u32 reg;
+
+	/* FIXME: delay a bit for card to be ready for next tuning due to errors */
+	mdelay(1);
+
+	reg = readl(host->ioaddr + ESDHC_MIX_CTRL);
+	reg |= ESDHC_MIX_CTRL_EXE_TUNE | ESDHC_MIX_CTRL_SMPCLK_SEL |
+			ESDHC_MIX_CTRL_FBCLK_SEL;
+	writel(reg, host->ioaddr + ESDHC_MIX_CTRL);
+	writel(val << 8, host->ioaddr + ESDHC_TUNE_CTRL_STATUS);
+	dev_dbg(mmc_dev(host->mmc),
+		"tunning with delay 0x%x ESDHC_TUNE_CTRL_STATUS 0x%x\n",
+			val, readl(host->ioaddr + ESDHC_TUNE_CTRL_STATUS));
+}
+
+static void esdhc_request_done(struct mmc_request *mrq)
+{
+	complete(&mrq->completion);
+}
+
+static int esdhc_send_tuning_cmd(struct sdhci_host *host, u32 opcode)
+{
+	struct mmc_command cmd = {0};
+	struct mmc_request mrq = {0};
+	struct mmc_data data = {0};
+	struct scatterlist sg;
+	char tuning_pattern[ESDHC_TUNING_BLOCK_PATTERN_LEN];
+
+	cmd.opcode = opcode;
+	cmd.arg = 0;
+	cmd.flags = MMC_RSP_R1 | MMC_CMD_ADTC;
+
+	data.blksz = ESDHC_TUNING_BLOCK_PATTERN_LEN;
+	data.blocks = 1;
+	data.flags = MMC_DATA_READ;
+	data.sg = &sg;
+	data.sg_len = 1;
+
+	sg_init_one(&sg, tuning_pattern, sizeof(tuning_pattern));
+
+	mrq.cmd = &cmd;
+	mrq.cmd->mrq = &mrq;
+	mrq.data = &data;
+	mrq.data->mrq = &mrq;
+	mrq.cmd->data = mrq.data;
+
+	mrq.done = esdhc_request_done;
+	init_completion(&(mrq.completion));
+
+	disable_irq(host->irq);
+	spin_lock(&host->lock);
+	host->mrq = &mrq;
+
+	sdhci_send_command(host, mrq.cmd);
+
+	spin_unlock(&host->lock);
+	enable_irq(host->irq);
+
+	wait_for_completion(&mrq.completion);
+
+	if (cmd.error)
+		return cmd.error;
+	if (data.error)
+		return data.error;
+
+	return 0;
+}
+
+static void esdhc_post_tuning(struct sdhci_host *host)
+{
+	u32 reg;
+
+	reg = readl(host->ioaddr + ESDHC_MIX_CTRL);
+	reg &= ~ESDHC_MIX_CTRL_EXE_TUNE;
+	writel(reg, host->ioaddr + ESDHC_MIX_CTRL);
+}
+
+static int esdhc_executing_tuning(struct sdhci_host *host, u32 opcode)
+{
+	int min, max, avg, ret;
+
+	/* find the mininum delay first which can pass tuning */
+	min = ESDHC_TUNE_CTRL_MIN;
+	while (min < ESDHC_TUNE_CTRL_MAX) {
+		esdhc_prepare_tuning(host, min);
+		if (!esdhc_send_tuning_cmd(host, opcode))
+			break;
+		min += ESDHC_TUNE_CTRL_STEP;
+	}
+
+	/* find the maxinum delay which can not pass tuning */
+	max = min + ESDHC_TUNE_CTRL_STEP;
+	while (max < ESDHC_TUNE_CTRL_MAX) {
+		esdhc_prepare_tuning(host, max);
+		if (esdhc_send_tuning_cmd(host, opcode)) {
+			max -= ESDHC_TUNE_CTRL_STEP;
+			break;
+		}
+		max += ESDHC_TUNE_CTRL_STEP;
+	}
+
+	/* use average delay to get the best timing */
+	avg = (min + max) / 2;
+	esdhc_prepare_tuning(host, avg);
+	ret = esdhc_send_tuning_cmd(host, opcode);
+	esdhc_post_tuning(host);
+
+	dev_dbg(mmc_dev(host->mmc), "tunning %s at 0x%x ret %d\n",
+		ret ? "failed" : "passed", avg, ret);
+
+	return ret;
+}
+
 static const struct sdhci_ops sdhci_esdhc_ops = {
 	.read_l = esdhc_readl_le,
 	.read_w = esdhc_readw_le,
@@ -511,6 +704,7 @@ static const struct sdhci_ops sdhci_esdhc_ops = {
 	.get_min_clock = esdhc_pltfm_get_min_clock,
 	.get_ro = esdhc_pltfm_get_ro,
 	.platform_bus_width = esdhc_pltfm_bus_width,
+	.platform_execute_tuning = esdhc_executing_tuning,
 };
 
 static const struct sdhci_pltfm_data sdhci_esdhc_imx_pdata = {
-- 
cgit 


From ad93220de7da1f5bd8f9e4be1f1eeefba5eed0ad Mon Sep 17 00:00:00 2001
From: Dong Aisheng <b29396@freescale.com>
Date: Fri, 13 Sep 2013 19:11:35 +0800
Subject: mmc: sdhci-esdhc-imx: change pinctrl state according to uhs mode

Without proper pinctrl state, the card may not be able to work
on high speed stablely. e.g. SDR104.

This patch add pinctrl state switch code according to different
uhs mode include 100mhz sate, 200mhz sate and normal state
(50Mhz and below).

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci-esdhc-imx.c          | 96 ++++++++++++++++++++++++++++-
 include/linux/platform_data/mmc-esdhc-imx.h |  4 ++
 2 files changed, 99 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index f906c206901d..ed00d6ddd5fd 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -53,6 +53,10 @@
 
 #define ESDHC_TUNING_BLOCK_PATTERN_LEN	64
 
+/* pinctrl state */
+#define ESDHC_PINCTRL_STATE_100MHZ	"state_100mhz"
+#define ESDHC_PINCTRL_STATE_200MHZ	"state_200mhz"
+
 /*
  * Our interpretation of the SDHCI_HOST_CONTROL register
  */
@@ -94,6 +98,9 @@ struct pltfm_imx_data {
 	u32 scratchpad;
 	enum imx_esdhc_type devtype;
 	struct pinctrl *pinctrl;
+	struct pinctrl_state *pins_default;
+	struct pinctrl_state *pins_100mhz;
+	struct pinctrl_state *pins_200mhz;
 	struct esdhc_platform_data boarddata;
 	struct clk *clk_ipg;
 	struct clk *clk_ahb;
@@ -693,6 +700,62 @@ static int esdhc_executing_tuning(struct sdhci_host *host, u32 opcode)
 	return ret;
 }
 
+static int esdhc_change_pinstate(struct sdhci_host *host,
+						unsigned int uhs)
+{
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct pltfm_imx_data *imx_data = pltfm_host->priv;
+	struct pinctrl_state *pinctrl;
+
+	dev_dbg(mmc_dev(host->mmc), "change pinctrl state for uhs %d\n", uhs);
+
+	if (IS_ERR(imx_data->pinctrl) ||
+		IS_ERR(imx_data->pins_default) ||
+		IS_ERR(imx_data->pins_100mhz) ||
+		IS_ERR(imx_data->pins_200mhz))
+		return -EINVAL;
+
+	switch (uhs) {
+	case MMC_TIMING_UHS_SDR50:
+		pinctrl = imx_data->pins_100mhz;
+		break;
+	case MMC_TIMING_UHS_SDR104:
+		pinctrl = imx_data->pins_200mhz;
+		break;
+	default:
+		/* back to default state for other legacy timing */
+		pinctrl = imx_data->pins_default;
+	}
+
+	return pinctrl_select_state(imx_data->pinctrl, pinctrl);
+}
+
+static int esdhc_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs)
+{
+	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
+	struct pltfm_imx_data *imx_data = pltfm_host->priv;
+
+	switch (uhs) {
+	case MMC_TIMING_UHS_SDR12:
+		imx_data->uhs_mode = SDHCI_CTRL_UHS_SDR12;
+		break;
+	case MMC_TIMING_UHS_SDR25:
+		imx_data->uhs_mode = SDHCI_CTRL_UHS_SDR25;
+		break;
+	case MMC_TIMING_UHS_SDR50:
+		imx_data->uhs_mode = SDHCI_CTRL_UHS_SDR50;
+		break;
+	case MMC_TIMING_UHS_SDR104:
+		imx_data->uhs_mode = SDHCI_CTRL_UHS_SDR104;
+		break;
+	case MMC_TIMING_UHS_DDR50:
+		imx_data->uhs_mode = SDHCI_CTRL_UHS_DDR50;
+		break;
+	}
+
+	return esdhc_change_pinstate(host, uhs);
+}
+
 static const struct sdhci_ops sdhci_esdhc_ops = {
 	.read_l = esdhc_readl_le,
 	.read_w = esdhc_readw_le,
@@ -704,6 +767,7 @@ static const struct sdhci_ops sdhci_esdhc_ops = {
 	.get_min_clock = esdhc_pltfm_get_min_clock,
 	.get_ro = esdhc_pltfm_get_ro,
 	.platform_bus_width = esdhc_pltfm_bus_width,
+	.set_uhs_signaling = esdhc_set_uhs_signaling,
 	.platform_execute_tuning = esdhc_executing_tuning,
 };
 
@@ -746,6 +810,11 @@ sdhci_esdhc_imx_probe_dt(struct platform_device *pdev,
 
 	of_property_read_u32(np, "max-frequency", &boarddata->f_max);
 
+	if (of_find_property(np, "no-1-8-v", NULL))
+		boarddata->support_vsel = false;
+	else
+		boarddata->support_vsel = true;
+
 	return 0;
 }
 #else
@@ -808,12 +877,20 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
 	clk_prepare_enable(imx_data->clk_ipg);
 	clk_prepare_enable(imx_data->clk_ahb);
 
-	imx_data->pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
+	imx_data->pinctrl = devm_pinctrl_get(&pdev->dev);
 	if (IS_ERR(imx_data->pinctrl)) {
 		err = PTR_ERR(imx_data->pinctrl);
 		goto disable_clk;
 	}
 
+	imx_data->pins_default = pinctrl_lookup_state(imx_data->pinctrl,
+						PINCTRL_STATE_DEFAULT);
+	if (IS_ERR(imx_data->pins_default)) {
+		err = PTR_ERR(imx_data->pins_default);
+		dev_err(mmc_dev(host->mmc), "could not get default state\n");
+		goto disable_clk;
+	}
+
 	host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;
 
 	if (is_imx25_esdhc(imx_data) || is_imx35_esdhc(imx_data))
@@ -890,6 +967,23 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
 		break;
 	}
 
+	/* sdr50 and sdr104 needs work on 1.8v signal voltage */
+	if ((boarddata->support_vsel) && is_imx6q_usdhc(imx_data)) {
+		imx_data->pins_100mhz = pinctrl_lookup_state(imx_data->pinctrl,
+						ESDHC_PINCTRL_STATE_100MHZ);
+		imx_data->pins_200mhz = pinctrl_lookup_state(imx_data->pinctrl,
+						ESDHC_PINCTRL_STATE_200MHZ);
+		if (IS_ERR(imx_data->pins_100mhz) ||
+				IS_ERR(imx_data->pins_200mhz)) {
+			dev_warn(mmc_dev(host->mmc),
+				"could not get ultra high speed state, work on normal mode\n");
+			/* fall back to not support uhs by specify no 1.8v quirk */
+			host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;
+		}
+	} else {
+		host->quirks2 |= SDHCI_QUIRK2_NO_1_8_V;
+	}
+
 	err = sdhci_add_host(host);
 	if (err)
 		goto disable_clk;
diff --git a/include/linux/platform_data/mmc-esdhc-imx.h b/include/linux/platform_data/mmc-esdhc-imx.h
index d44912d81578..a0f5a8f9b3bc 100644
--- a/include/linux/platform_data/mmc-esdhc-imx.h
+++ b/include/linux/platform_data/mmc-esdhc-imx.h
@@ -10,6 +10,8 @@
 #ifndef __ASM_ARCH_IMX_ESDHC_H
 #define __ASM_ARCH_IMX_ESDHC_H
 
+#include <linux/types.h>
+
 enum wp_types {
 	ESDHC_WP_NONE,		/* no WP, neither controller nor gpio */
 	ESDHC_WP_CONTROLLER,	/* mmc controller internal WP */
@@ -32,6 +34,7 @@ enum cd_types {
  * @cd_gpio:	gpio for card_detect interrupt
  * @wp_type:	type of write_protect method (see wp_types enum above)
  * @cd_type:	type of card_detect method (see cd_types enum above)
+ * @support_vsel:  indicate it supports 1.8v switching
  */
 
 struct esdhc_platform_data {
@@ -41,5 +44,6 @@ struct esdhc_platform_data {
 	enum cd_types cd_type;
 	int max_bus_width;
 	unsigned int f_max;
+	bool support_vsel;
 };
 #endif /* __ASM_ARCH_IMX_ESDHC_H */
-- 
cgit 


From 5f7886c5ef40c79b5811f23219167096ab578a91 Mon Sep 17 00:00:00 2001
From: Dong Aisheng <b29396@freescale.com>
Date: Fri, 13 Sep 2013 19:11:36 +0800
Subject: mmc: sdhci-esdhc-imx: correct pre_div for imx6q

According to spec, the pre_div for imx6q should be 1, or the biggest
clock rate we can get is a half of host clock rate.  This may cause
we can not get the proper clock rate as we want.  e.g. if the desired
clock is 200Mhz, however, the host clock is 200Mhz too, then it causes
the actual clock we get is 100Mhz due to pre_div is 2.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index ed00d6ddd5fd..fe48ec3323af 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -510,6 +510,9 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host,
 		goto out;
 	}
 
+	if (is_imx6q_usdhc(imx_data))
+		pre_div = 1;
+
 	temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL);
 	temp &= ~(ESDHC_CLOCK_IPGEN | ESDHC_CLOCK_HCKEN | ESDHC_CLOCK_PEREN
 		| ESDHC_CLOCK_MASK);
-- 
cgit 


From c90c36e4bceed4cb61853c3382abbc765ad46ef5 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Thu, 26 Sep 2013 15:09:14 +0200
Subject: ARM: ux500 enable the AB8500 gpio for all HREFs

The AB8500 GPIO was only registered for the pre-v60 HREF but should
be made available on all HREF variants, move the DT entry to the
common file.

Cc: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-href.dtsi      | 4 ++++
 arch/arm/boot/dts/ste-hrefprev60.dts | 8 --------
 2 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/arch/arm/boot/dts/ste-href.dtsi b/arch/arm/boot/dts/ste-href.dtsi
index 5e7cf4bf5afb..d6753261796b 100644
--- a/arch/arm/boot/dts/ste-href.dtsi
+++ b/arch/arm/boot/dts/ste-href.dtsi
@@ -169,6 +169,10 @@
 
 		prcmu@80157000 {
 			ab8500 {
+				ab8500-gpio {
+					compatible = "stericsson,ab8500-gpio";
+				};
+
 				ab8500-regulators {
 					ab8500_ldo_aux1_reg: ab8500_ldo_aux1 {
 						regulator-name = "V-DISPLAY";
diff --git a/arch/arm/boot/dts/ste-hrefprev60.dts b/arch/arm/boot/dts/ste-hrefprev60.dts
index d8d3b99ab007..767fa21e4881 100644
--- a/arch/arm/boot/dts/ste-hrefprev60.dts
+++ b/arch/arm/boot/dts/ste-hrefprev60.dts
@@ -25,14 +25,6 @@
 	};
 
 	soc {
-		prcmu@80157000 {
-			ab8500@5 {
-				ab8500-gpio {
-					compatible = "stericsson,ab8500-gpio";
-				};
-			};
-		};
-
 		i2c@80004000 {
 			tps61052@33 {
 				compatible = "tps61052";
-- 
cgit 


From 6e712d427cb0542afdd5220edb6e4f4f8a5b952d Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Tue, 24 Sep 2013 10:18:36 +0200
Subject: ath10k: replenish HTT RX buffers in a tasklet

This starves FW RX ring buffer in case of
excessive RX. This prevents from CPU being
overwhelmed by RX indications/completions by
naturally forbiddin FW to submit more RX.

This fixes RX starvation on slow machines when
under heavy RX traffic.

kvalo: remove extra newline

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/htt.h    |  6 ++++++
 drivers/net/wireless/ath/ath10k/htt_rx.c | 35 +++++++++++++++++++++++++++++---
 2 files changed, 38 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h
index e090902cfd84..1a337e93b7e9 100644
--- a/drivers/net/wireless/ath/ath10k/htt.h
+++ b/drivers/net/wireless/ath/ath10k/htt.h
@@ -19,6 +19,7 @@
 #define _HTT_H_
 
 #include <linux/bug.h>
+#include <linux/interrupt.h>
 
 #include "htc.h"
 #include "rx_desc.h"
@@ -1268,6 +1269,7 @@ struct ath10k_htt {
 	/* set if host-fw communication goes haywire
 	 * used to avoid further failures */
 	bool rx_confused;
+	struct tasklet_struct rx_replenish_task;
 };
 
 #define RX_HTT_HDR_STATUS_LEN 64
@@ -1308,6 +1310,10 @@ struct htt_rx_desc {
 #define HTT_RX_BUF_SIZE 1920
 #define HTT_RX_MSDU_SIZE (HTT_RX_BUF_SIZE - (int)sizeof(struct htt_rx_desc))
 
+/* Refill a bunch of RX buffers for each refill round so that FW/HW can handle
+ * aggregated traffic more nicely. */
+#define ATH10K_HTT_MAX_NUM_REFILL 16
+
 /*
  * DMA_MAP expects the buffer to be an integral number of cache lines.
  * Rather than checking the actual cache line size, this code makes a
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index c4637f18734f..90d4f74c28d7 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -182,10 +182,27 @@ static int ath10k_htt_rx_ring_fill_n(struct ath10k_htt *htt, int num)
 
 static void ath10k_htt_rx_msdu_buff_replenish(struct ath10k_htt *htt)
 {
-	int ret, num_to_fill;
+	int ret, num_deficit, num_to_fill;
 
+	/* Refilling the whole RX ring buffer proves to be a bad idea. The
+	 * reason is RX may take up significant amount of CPU cycles and starve
+	 * other tasks, e.g. TX on an ethernet device while acting as a bridge
+	 * with ath10k wlan interface. This ended up with very poor performance
+	 * once CPU the host system was overwhelmed with RX on ath10k.
+	 *
+	 * By limiting the number of refills the replenishing occurs
+	 * progressively. This in turns makes use of the fact tasklets are
+	 * processed in FIFO order. This means actual RX processing can starve
+	 * out refilling. If there's not enough buffers on RX ring FW will not
+	 * report RX until it is refilled with enough buffers. This
+	 * automatically balances load wrt to CPU power.
+	 *
+	 * This probably comes at a cost of lower maximum throughput but
+	 * improves the avarage and stability. */
 	spin_lock_bh(&htt->rx_ring.lock);
-	num_to_fill = htt->rx_ring.fill_level - htt->rx_ring.fill_cnt;
+	num_deficit = htt->rx_ring.fill_level - htt->rx_ring.fill_cnt;
+	num_to_fill = min(ATH10K_HTT_MAX_NUM_REFILL, num_deficit);
+	num_deficit -= num_to_fill;
 	ret = ath10k_htt_rx_ring_fill_n(htt, num_to_fill);
 	if (ret == -ENOMEM) {
 		/*
@@ -196,6 +213,8 @@ static void ath10k_htt_rx_msdu_buff_replenish(struct ath10k_htt *htt)
 		 */
 		mod_timer(&htt->rx_ring.refill_retry_timer, jiffies +
 			  msecs_to_jiffies(HTT_RX_RING_REFILL_RETRY_MS));
+	} else if (num_deficit > 0) {
+		tasklet_schedule(&htt->rx_replenish_task);
 	}
 	spin_unlock_bh(&htt->rx_ring.lock);
 }
@@ -217,6 +236,7 @@ void ath10k_htt_rx_detach(struct ath10k_htt *htt)
 	int sw_rd_idx = htt->rx_ring.sw_rd_idx.msdu_payld;
 
 	del_timer_sync(&htt->rx_ring.refill_retry_timer);
+	tasklet_kill(&htt->rx_replenish_task);
 
 	while (sw_rd_idx != __le32_to_cpu(*(htt->rx_ring.alloc_idx.vaddr))) {
 		struct sk_buff *skb =
@@ -446,6 +466,12 @@ static int ath10k_htt_rx_amsdu_pop(struct ath10k_htt *htt,
 	return msdu_chaining;
 }
 
+static void ath10k_htt_rx_replenish_task(unsigned long ptr)
+{
+	struct ath10k_htt *htt = (struct ath10k_htt *)ptr;
+	ath10k_htt_rx_msdu_buff_replenish(htt);
+}
+
 int ath10k_htt_rx_attach(struct ath10k_htt *htt)
 {
 	dma_addr_t paddr;
@@ -506,6 +532,9 @@ int ath10k_htt_rx_attach(struct ath10k_htt *htt)
 	if (__ath10k_htt_rx_ring_fill_n(htt, htt->rx_ring.fill_level))
 		goto err_fill_ring;
 
+	tasklet_init(&htt->rx_replenish_task, ath10k_htt_rx_replenish_task,
+		     (unsigned long)htt);
+
 	ath10k_dbg(ATH10K_DBG_BOOT, "htt rx ring size %d fill_level %d\n",
 		   htt->rx_ring.size, htt->rx_ring.fill_level);
 	return 0;
@@ -956,7 +985,7 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
 		}
 	}
 
-	ath10k_htt_rx_msdu_buff_replenish(htt);
+	tasklet_schedule(&htt->rx_replenish_task);
 }
 
 static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
-- 
cgit 


From 52fa019155329898f564f9f0264159728d263271 Mon Sep 17 00:00:00 2001
From: Marek Puzyniak <marek.puzyniak@tieto.com>
Date: Tue, 24 Sep 2013 14:06:24 +0200
Subject: ath10k: make monitor vdev down before stoping it

Following sequence causes FW crash:
-monitor vdev up,
-monitor vdev stop,
-monitor vdev delete.
Making monitor vdev down before stoping it works ok:
-monitor vdev up,
-monitor vdev down,
-monitor vdev stop,
-monitor vdev delete.

Signed-off-by: Marek Puzyniak <marek.puzyniak@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 99a9bad3f398..df4d29981c4b 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -562,12 +562,9 @@ static int ath10k_monitor_stop(struct ath10k *ar)
 
 	lockdep_assert_held(&ar->conf_mutex);
 
-	/* For some reasons, ath10k_wmi_vdev_down() here couse
-	 * often ath10k_wmi_vdev_stop() to fail. Next we could
-	 * not run monitor vdev and driver reload
-	 * required. Don't see such problems we skip
-	 * ath10k_wmi_vdev_down() here.
-	 */
+	ret = ath10k_wmi_vdev_down(ar, ar->monitor_vdev_id);
+	if (ret)
+		ath10k_warn("Monitor vdev down failed: %d\n", ret);
 
 	ret = ath10k_wmi_vdev_stop(ar, ar->monitor_vdev_id);
 	if (ret)
-- 
cgit 


From caaeb09afda3a2239e02d495cea7e629136e09ee Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Mon, 2 Sep 2013 03:11:00 +0300
Subject: mei: mei_cl_link protect open_handle_count from overflow

mei_cl_link is called both from mei_open and also from
in-kernel drivers so we need to protect open_handle_count
from overflow

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/client.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index e0684b4d9a08..a82b443e4518 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -287,6 +287,12 @@ int mei_cl_link(struct mei_cl *cl, int id)
 		return -ENOENT;
 	}
 
+	if (dev->open_handle_count >= MEI_MAX_OPEN_HANDLE_COUNT) {
+		dev_err(&dev->pdev->dev, "open_handle_count exceded %d",
+			MEI_MAX_OPEN_HANDLE_COUNT);
+		return -ENOENT;
+	}
+
 	dev->open_handle_count++;
 
 	cl->host_client_id = id;
-- 
cgit 


From 23f5a322063cba7c9f5dba5205e2960a24291373 Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Mon, 2 Sep 2013 03:11:01 +0300
Subject: mei: make sure that me_clients_map big enough before copying

To make static analyzers happy validated that
sizeof me_clients_map  is larger than sizeof valid_addresses from the
enumeration response before memcpy
We can use BUILD_ON macro as both arrays are defined statically

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/hbm.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c
index 6127ab64bb39..95d4dabf82c0 100644
--- a/drivers/misc/mei/hbm.c
+++ b/drivers/misc/mei/hbm.c
@@ -673,7 +673,10 @@ void mei_hbm_dispatch(struct mei_device *dev, struct mei_msg_hdr *hdr)
 
 	case HOST_ENUM_RES_CMD:
 		enum_res = (struct hbm_host_enum_response *) mei_msg;
-		memcpy(dev->me_clients_map, enum_res->valid_addresses, 32);
+		BUILD_BUG_ON(sizeof(dev->me_clients_map)
+				< sizeof(enum_res->valid_addresses));
+		memcpy(dev->me_clients_map, enum_res->valid_addresses,
+			sizeof(enum_res->valid_addresses));
 		if (dev->dev_state == MEI_DEV_INIT_CLIENTS &&
 		    dev->hbm_state == MEI_HBM_ENUM_CLIENTS) {
 				dev->init_clients_timer = 0;
-- 
cgit 


From d8b29efa27de17dafe516d45204dbb744ccdfa48 Mon Sep 17 00:00:00 2001
From: Alexander Usyskin <alexander.usyskin@intel.com>
Date: Mon, 2 Sep 2013 03:11:02 +0300
Subject: mei: mei_write correct checks for copy_from_user

1. return -EFUALT when copy_from_user fails
2. display error message on failure in error level

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/main.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index 173ff095be0d..5ff810b1e8b3 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -404,8 +404,11 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
 		goto out;
 
 	rets = copy_from_user(write_cb->request_buffer.data, ubuf, length);
-	if (rets)
+	if (rets) {
+		dev_err(&dev->pdev->dev, "failed to copy data from userland\n");
+		rets = -EFAULT;
 		goto out;
+	}
 
 	if (cl == &dev->iamthif_cl) {
 		rets = mei_amthif_write(dev, write_cb);
@@ -567,7 +570,7 @@ static long mei_ioctl(struct file *file, unsigned int cmd, unsigned long data)
 	dev_dbg(&dev->pdev->dev, "copy connect data from user\n");
 	if (copy_from_user(connect_data, (char __user *)data,
 				sizeof(struct mei_connect_client_data))) {
-		dev_dbg(&dev->pdev->dev, "failed to copy data from userland\n");
+		dev_err(&dev->pdev->dev, "failed to copy data from userland\n");
 		rets = -EFAULT;
 		goto out;
 	}
-- 
cgit 


From e19555ce893f7567c7a72f91dafe6bdb93f0198f Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Mon, 2 Sep 2013 03:11:03 +0300
Subject: mei: fix format compilation warrning on 32 bit architecture

hbm.c: In function mei_hbm_me_cl_allocate:
hbm.c:52:212: warning: format %zd expects argument of type signed size_t but argument 4 has type long unsigned

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/hbm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c
index 95d4dabf82c0..f706fe8a3286 100644
--- a/drivers/misc/mei/hbm.c
+++ b/drivers/misc/mei/hbm.c
@@ -45,7 +45,7 @@ static void mei_hbm_me_cl_allocate(struct mei_device *dev)
 	kfree(dev->me_clients);
 	dev->me_clients = NULL;
 
-	dev_dbg(&dev->pdev->dev, "memory allocation for ME clients size=%zd.\n",
+	dev_dbg(&dev->pdev->dev, "memory allocation for ME clients size=%ld.\n",
 		dev->me_clients_num * sizeof(struct mei_me_client));
 	/* allocate storage for ME clients representation */
 	clients = kcalloc(dev->me_clients_num,
-- 
cgit 


From dd5de1f165ade430357960459491a067c7e3d21c Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Mon, 2 Sep 2013 03:11:04 +0300
Subject: mei: revamp read and write length checks

1. Return zero on zero length read and writes
2. For a too large write return -EFBIG as defined in man write(2)
EFBIG  An attempt was made to write a file that
        exceeds the implementation-defined maximum
        file size or the process's file size limit,
        or to  write  at  a  position  past  the  maximum
        allowed offset.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/main.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index 5ff810b1e8b3..7404584e65e1 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -203,12 +203,18 @@ static ssize_t mei_read(struct file *file, char __user *ubuf,
 
 	dev = cl->dev;
 
+
 	mutex_lock(&dev->device_lock);
 	if (dev->dev_state != MEI_DEV_ENABLED) {
 		rets = -ENODEV;
 		goto out;
 	}
 
+	if (length == 0) {
+		rets = 0;
+		goto out;
+	}
+
 	if (cl == &dev->iamthif_cl) {
 		rets = mei_amthif_read(dev, file, ubuf, length, offset);
 		goto out;
@@ -350,8 +356,14 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
 		rets = -ENODEV;
 		goto out;
 	}
-	if (length > dev->me_clients[id].props.max_msg_length || length <= 0) {
-		rets = -EMSGSIZE;
+
+	if (length == 0) {
+		rets = 0;
+		goto out;
+	}
+
+	if (length > dev->me_clients[id].props.max_msg_length) {
+		rets = -EFBIG;
 		goto out;
 	}
 
-- 
cgit 


From a9c8a17aea8ced19598b388db618e9094f3c1245 Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Sun, 15 Sep 2013 18:11:06 +0300
Subject: mei: mei_release: drop redundant check if cb is NULL

mei_io_cb_free follows kfree design and check for NULL internally

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/main.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index 7404584e65e1..9aa3b78067d3 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -165,10 +165,7 @@ static int mei_release(struct inode *inode, struct file *file)
 
 	file->private_data = NULL;
 
-	if (cb) {
-		mei_io_cb_free(cb);
-		cb = NULL;
-	}
+	mei_io_cb_free(cb);
 
 	kfree(cl);
 out:
-- 
cgit 


From c0abffbd982ccf9460187206a074e52cb23e8be3 Mon Sep 17 00:00:00 2001
From: Alexander Usyskin <alexander.usyskin@intel.com>
Date: Sun, 15 Sep 2013 18:11:07 +0300
Subject: mei: prefix client log messages with client me and host ids

define cl_dbg and cl_err macros that add me and host id
prefix for debug and error log messages so we can track
for the client context of the flow.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/client.c    | 43 ++++++++++++++++++++++---------------------
 drivers/misc/mei/client.h    |  9 +++++++++
 drivers/misc/mei/interrupt.c | 18 +++++++-----------
 3 files changed, 38 insertions(+), 32 deletions(-)

diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index a82b443e4518..bccc3164ea4c 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -187,10 +187,14 @@ int mei_io_cb_alloc_resp_buf(struct mei_cl_cb *cb, size_t length)
  */
 int mei_cl_flush_queues(struct mei_cl *cl)
 {
+	struct mei_device *dev;
+
 	if (WARN_ON(!cl || !cl->dev))
 		return -EINVAL;
 
-	dev_dbg(&cl->dev->pdev->dev, "remove list entry belonging to cl\n");
+	dev = cl->dev;
+
+	cl_dbg(dev, cl, "remove list entry belonging to cl\n");
 	mei_io_list_flush(&cl->dev->read_list, cl);
 	mei_io_list_flush(&cl->dev->write_list, cl);
 	mei_io_list_flush(&cl->dev->write_waiting_list, cl);
@@ -302,7 +306,7 @@ int mei_cl_link(struct mei_cl *cl, int id)
 
 	cl->state = MEI_FILE_INITIALIZING;
 
-	dev_dbg(&dev->pdev->dev, "link cl host id = %d\n", cl->host_client_id);
+	cl_dbg(dev, cl, "link cl\n");
 	return 0;
 }
 
@@ -328,7 +332,7 @@ int mei_cl_unlink(struct mei_cl *cl)
 
 	list_for_each_entry_safe(pos, next, &dev->file_list, link) {
 		if (cl->host_client_id == pos->host_client_id) {
-			dev_dbg(&dev->pdev->dev, "remove host client = %d, ME client = %d\n",
+			cl_dbg(dev, cl, "remove host client = %d, ME client = %d\n",
 				pos->host_client_id, pos->me_client_id);
 			list_del_init(&pos->link);
 			break;
@@ -396,6 +400,8 @@ int mei_cl_disconnect(struct mei_cl *cl)
 
 	dev = cl->dev;
 
+	cl_dbg(dev, cl, "disconnecting");
+
 	if (cl->state != MEI_FILE_DISCONNECTING)
 		return 0;
 
@@ -408,13 +414,13 @@ int mei_cl_disconnect(struct mei_cl *cl)
 		dev->hbuf_is_ready = false;
 		if (mei_hbm_cl_disconnect_req(dev, cl)) {
 			rets = -ENODEV;
-			dev_err(&dev->pdev->dev, "failed to disconnect.\n");
+			cl_err(dev, cl, "failed to disconnect.\n");
 			goto free;
 		}
 		mdelay(10); /* Wait for hardware disconnection ready */
 		list_add_tail(&cb->list, &dev->ctrl_rd_list.list);
 	} else {
-		dev_dbg(&dev->pdev->dev, "add disconnect cb to control write list\n");
+		cl_dbg(dev, cl, "add disconnect cb to control write list\n");
 		list_add_tail(&cb->list, &dev->ctrl_wr_list.list);
 
 	}
@@ -427,18 +433,17 @@ int mei_cl_disconnect(struct mei_cl *cl)
 	mutex_lock(&dev->device_lock);
 	if (MEI_FILE_DISCONNECTED == cl->state) {
 		rets = 0;
-		dev_dbg(&dev->pdev->dev, "successfully disconnected from FW client.\n");
+		cl_dbg(dev, cl, "successfully disconnected from FW client.\n");
 	} else {
 		rets = -ENODEV;
 		if (MEI_FILE_DISCONNECTED != cl->state)
-			dev_dbg(&dev->pdev->dev, "wrong status client disconnect.\n");
+			cl_err(dev, cl, "wrong status client disconnect.\n");
 
 		if (err)
-			dev_dbg(&dev->pdev->dev,
-					"wait failed disconnect err=%08x\n",
+			cl_dbg(dev, cl, "wait failed disconnect err=%08x\n",
 					err);
 
-		dev_dbg(&dev->pdev->dev, "failed to disconnect from FW client.\n");
+		cl_err(dev, cl, "failed to disconnect from FW client.\n");
 	}
 
 	mei_io_list_flush(&dev->ctrl_rd_list, cl);
@@ -645,13 +650,12 @@ int mei_cl_read_start(struct mei_cl *cl, size_t length)
 		return -ENODEV;
 
 	if (cl->read_cb) {
-		dev_dbg(&dev->pdev->dev, "read is pending.\n");
+		cl_dbg(dev, cl, "read is pending.\n");
 		return -EBUSY;
 	}
 	i = mei_me_cl_by_id(dev, cl->me_client_id);
 	if (i < 0) {
-		dev_err(&dev->pdev->dev, "no such me client %d\n",
-			cl->me_client_id);
+		cl_err(dev, cl, "no such me client %d\n", cl->me_client_id);
 		return  -ENODEV;
 	}
 
@@ -670,6 +674,7 @@ int mei_cl_read_start(struct mei_cl *cl, size_t length)
 	if (dev->hbuf_is_ready) {
 		dev->hbuf_is_ready = false;
 		if (mei_hbm_cl_flow_control_req(dev, cl)) {
+			cl_err(dev, cl, "flow control send failed\n");
 			rets = -ENODEV;
 			goto err;
 		}
@@ -720,9 +725,8 @@ int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
 		return 0;
 	}
 
-	dev_dbg(&dev->pdev->dev, "buf: size = %d idx = %lu\n",
+	cl_dbg(dev, cl, "buf: size = %d idx = %lu\n",
 			cb->request_buffer.size, cb->buf_idx);
-	dev_dbg(&dev->pdev->dev, MEI_HDR_FMT, MEI_HDR_PRM(&mei_hdr));
 
 	*slots -=  msg_slots;
 	if (mei_write_message(dev, &mei_hdr,
@@ -773,7 +777,7 @@ int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking)
 
 	buf = &cb->request_buffer;
 
-	dev_dbg(&dev->pdev->dev, "mei_cl_write %d\n", buf->size);
+	cl_dbg(dev, cl, "mei_cl_write %d\n", buf->size);
 
 
 	cb->fop_type = MEI_FOP_WRITE;
@@ -806,9 +810,6 @@ int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking)
 	mei_hdr.me_addr = cl->me_client_id;
 	mei_hdr.reserved = 0;
 
-	dev_dbg(&dev->pdev->dev, "write " MEI_HDR_FMT "\n",
-		MEI_HDR_PRM(&mei_hdr));
-
 
 	if (mei_write_message(dev, &mei_hdr, buf->data)) {
 		rets = -EIO;
@@ -904,11 +905,11 @@ void mei_cl_all_wakeup(struct mei_device *dev)
 	struct mei_cl *cl, *next;
 	list_for_each_entry_safe(cl, next, &dev->file_list, link) {
 		if (waitqueue_active(&cl->rx_wait)) {
-			dev_dbg(&dev->pdev->dev, "Waking up reading client!\n");
+			cl_dbg(dev, cl, "Waking up reading client!\n");
 			wake_up_interruptible(&cl->rx_wait);
 		}
 		if (waitqueue_active(&cl->tx_wait)) {
-			dev_dbg(&dev->pdev->dev, "Waking up writing client!\n");
+			cl_dbg(dev, cl, "Waking up writing client!\n");
 			wake_up_interruptible(&cl->tx_wait);
 		}
 	}
diff --git a/drivers/misc/mei/client.h b/drivers/misc/mei/client.h
index 9eb031e92070..6374ed99e233 100644
--- a/drivers/misc/mei/client.h
+++ b/drivers/misc/mei/client.h
@@ -109,4 +109,13 @@ void mei_cl_all_disconnect(struct mei_device *dev);
 void mei_cl_all_wakeup(struct mei_device *dev);
 void mei_cl_all_write_clear(struct mei_device *dev);
 
+#define MEI_CL_FMT "cl:host=%02d me=%02d "
+#define MEI_CL_PRM(cl) (cl)->host_client_id, (cl)->me_client_id
+
+#define cl_dbg(dev, cl, format, arg...) \
+	dev_dbg(&(dev)->pdev->dev, MEI_CL_FMT format, MEI_CL_PRM(cl), ##arg)
+
+#define cl_err(dev, cl, format, arg...) \
+	dev_err(&(dev)->pdev->dev, MEI_CL_FMT format, MEI_CL_PRM(cl), ##arg)
+
 #endif /* _MEI_CLIENT_H_ */
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index 4b59cb742dee..d27804e7d2cd 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -113,13 +113,13 @@ static int mei_cl_irq_read_msg(struct mei_device *dev,
 
 		if (cb->response_buffer.size == 0 ||
 		    cb->response_buffer.data == NULL) {
-			dev_err(&dev->pdev->dev, "response buffer is not allocated.\n");
+			cl_err(dev, cl, "response buffer is not allocated.\n");
 			list_del(&cb->list);
 			return -ENOMEM;
 		}
 
 		if (cb->response_buffer.size < mei_hdr->length + cb->buf_idx) {
-			dev_dbg(&dev->pdev->dev, "message overflow. size %d len %d idx %ld\n",
+			cl_dbg(dev, cl, "message overflow. size %d len %d idx %ld\n",
 				cb->response_buffer.size,
 				mei_hdr->length, cb->buf_idx);
 			buffer = krealloc(cb->response_buffer.data,
@@ -127,7 +127,7 @@ static int mei_cl_irq_read_msg(struct mei_device *dev,
 					  GFP_KERNEL);
 
 			if (!buffer) {
-				dev_err(&dev->pdev->dev, "allocation failed.\n");
+				cl_err(dev, cl, "allocation failed.\n");
 				list_del(&cb->list);
 				return -ENOMEM;
 			}
@@ -143,9 +143,7 @@ static int mei_cl_irq_read_msg(struct mei_device *dev,
 		if (mei_hdr->msg_complete) {
 			cl->status = 0;
 			list_del(&cb->list);
-			dev_dbg(&dev->pdev->dev, "completed read H cl = %d, ME cl = %d, length = %lu\n",
-				cl->host_client_id,
-				cl->me_client_id,
+			cl_dbg(dev, cl, "completed read length = %lu\n",
 				cb->buf_idx);
 			list_add_tail(&cb->list, &complete_list->list);
 		}
@@ -423,12 +421,12 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list)
 		if (MEI_WRITING == cl->writing_state &&
 		    cb->fop_type == MEI_FOP_WRITE &&
 		    cl != &dev->iamthif_cl) {
-			dev_dbg(&dev->pdev->dev, "MEI WRITE COMPLETE\n");
+			cl_dbg(dev, cl, "MEI WRITE COMPLETE\n");
 			cl->writing_state = MEI_WRITE_COMPLETE;
 			list_add_tail(&cb->list, &cmpl_list->list);
 		}
 		if (cl == &dev->iamthif_cl) {
-			dev_dbg(&dev->pdev->dev, "check iamthif flow control.\n");
+			cl_dbg(dev, cl, "check iamthif flow control.\n");
 			if (dev->iamthif_flow_control_pending) {
 				ret = mei_amthif_irq_read(dev, &slots);
 				if (ret)
@@ -510,9 +508,7 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list)
 		if (cl == NULL)
 			continue;
 		if (mei_cl_flow_ctrl_creds(cl) <= 0) {
-			dev_dbg(&dev->pdev->dev,
-				"No flow control credentials for client %d, not sending.\n",
-				cl->host_client_id);
+			cl_dbg(dev, cl, "No flow control credentials, not sending.\n");
 			continue;
 		}
 
-- 
cgit 


From 0da90747353c0f5b663c9c25fd56cd21440d222c Mon Sep 17 00:00:00 2001
From: Alexander Usyskin <alexander.usyskin@intel.com>
Date: Mon, 16 Sep 2013 23:44:42 +0300
Subject: mei: fix function names in debug prints

Fix calling function names in debug prints.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/interrupt.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index d27804e7d2cd..be42c700b15a 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -343,14 +343,14 @@ int mei_irq_read_handler(struct mei_device *dev,
 
 	/* decide where to read the message too */
 	if (!mei_hdr->host_addr) {
-		dev_dbg(&dev->pdev->dev, "call mei_irq_thread_read_bus_message.\n");
+		dev_dbg(&dev->pdev->dev, "call mei_hbm_dispatch.\n");
 		mei_hbm_dispatch(dev, mei_hdr);
-		dev_dbg(&dev->pdev->dev, "end mei_irq_thread_read_bus_message.\n");
+		dev_dbg(&dev->pdev->dev, "end mei_hbm_dispatch.\n");
 	} else if (mei_hdr->host_addr == dev->iamthif_cl.host_client_id &&
 		   (MEI_FILE_CONNECTED == dev->iamthif_cl.state) &&
 		   (dev->iamthif_state == MEI_IAMTHIF_READING)) {
 
-		dev_dbg(&dev->pdev->dev, "call mei_irq_thread_read_iamthif_message.\n");
+		dev_dbg(&dev->pdev->dev, "call mei_amthif_irq_read_msg.\n");
 		dev_dbg(&dev->pdev->dev, MEI_HDR_FMT, MEI_HDR_PRM(mei_hdr));
 
 		ret = mei_amthif_irq_read_msg(dev, mei_hdr, cmpl_list);
-- 
cgit 


From 2ebf8c94d431078d93599ba56efa58bf850078a1 Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Mon, 16 Sep 2013 23:44:43 +0300
Subject: mei: propagate error from write routines instead of ENODEV

ENODEV will cause application to try to reconnect since
it assumes that device went through the reset
write errors are not always fatal it can happen due to
resource contention

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/amthif.c    | 24 +++++++++++++-----------
 drivers/misc/mei/client.c    | 17 +++++++++--------
 drivers/misc/mei/hbm.c       |  2 +-
 drivers/misc/mei/interrupt.c | 20 +++++++++++++-------
 4 files changed, 36 insertions(+), 27 deletions(-)

diff --git a/drivers/misc/mei/amthif.c b/drivers/misc/mei/amthif.c
index d0fdc134068a..718f3a14c1ca 100644
--- a/drivers/misc/mei/amthif.c
+++ b/drivers/misc/mei/amthif.c
@@ -312,13 +312,13 @@ static int mei_amthif_send_cmd(struct mei_device *dev, struct mei_cl_cb *cb)
 		mei_hdr.me_addr = dev->iamthif_cl.me_client_id;
 		mei_hdr.reserved = 0;
 		dev->iamthif_msg_buf_index += mei_hdr.length;
-		if (mei_write_message(dev, &mei_hdr,
-					(unsigned char *)dev->iamthif_msg_buf))
-			return -ENODEV;
+		ret = mei_write_message(dev, &mei_hdr, dev->iamthif_msg_buf);
+		if (ret)
+			return ret;
 
 		if (mei_hdr.msg_complete) {
 			if (mei_cl_flow_ctrl_reduce(&dev->iamthif_cl))
-				return -ENODEV;
+				return -EIO;
 			dev->iamthif_flow_control_pending = true;
 			dev->iamthif_state = MEI_IAMTHIF_FLOW_CONTROL;
 			dev_dbg(&dev->pdev->dev, "add amthif cb to write waiting list\n");
@@ -458,6 +458,7 @@ int mei_amthif_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
 	struct mei_msg_hdr mei_hdr;
 	size_t len = dev->iamthif_msg_buf_size - dev->iamthif_msg_buf_index;
 	u32 msg_slots = mei_data2slots(len);
+	int rets;
 
 	mei_hdr.host_addr = cl->host_client_id;
 	mei_hdr.me_addr = cl->me_client_id;
@@ -480,16 +481,17 @@ int mei_amthif_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
 	dev_dbg(&dev->pdev->dev, MEI_HDR_FMT,  MEI_HDR_PRM(&mei_hdr));
 
 	*slots -=  msg_slots;
-	if (mei_write_message(dev, &mei_hdr,
-		dev->iamthif_msg_buf + dev->iamthif_msg_buf_index)) {
-			dev->iamthif_state = MEI_IAMTHIF_IDLE;
-			cl->status = -ENODEV;
-			list_del(&cb->list);
-			return -ENODEV;
+	rets = mei_write_message(dev, &mei_hdr,
+			dev->iamthif_msg_buf + dev->iamthif_msg_buf_index);
+	if (rets) {
+		dev->iamthif_state = MEI_IAMTHIF_IDLE;
+		cl->status = rets;
+		list_del(&cb->list);
+		return rets;
 	}
 
 	if (mei_cl_flow_ctrl_reduce(cl))
-		return -ENODEV;
+		return -EIO;
 
 	dev->iamthif_msg_buf_index += mei_hdr.length;
 	cl->status = 0;
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index bccc3164ea4c..1a53d961302a 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -706,6 +706,7 @@ int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
 	struct mei_msg_hdr mei_hdr;
 	size_t len = cb->request_buffer.size - cb->buf_idx;
 	u32 msg_slots = mei_data2slots(len);
+	int rets;
 
 	mei_hdr.host_addr = cl->host_client_id;
 	mei_hdr.me_addr = cl->me_client_id;
@@ -729,11 +730,12 @@ int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
 			cb->request_buffer.size, cb->buf_idx);
 
 	*slots -=  msg_slots;
-	if (mei_write_message(dev, &mei_hdr,
-			cb->request_buffer.data + cb->buf_idx)) {
-		cl->status = -ENODEV;
+	rets = mei_write_message(dev, &mei_hdr,
+			cb->request_buffer.data + cb->buf_idx);
+	if (rets) {
+		cl->status = rets;
 		list_move_tail(&cb->list, &cmpl_list->list);
-		return -ENODEV;
+		return rets;
 	}
 
 	cl->status = 0;
@@ -742,7 +744,7 @@ int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
 
 	if (mei_hdr.msg_complete) {
 		if (mei_cl_flow_ctrl_reduce(cl))
-			return -ENODEV;
+			return -EIO;
 		list_move_tail(&cb->list, &dev->write_waiting_list.list);
 	}
 
@@ -811,10 +813,9 @@ int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking)
 	mei_hdr.reserved = 0;
 
 
-	if (mei_write_message(dev, &mei_hdr, buf->data)) {
-		rets = -EIO;
+	rets = mei_write_message(dev, &mei_hdr, buf->data);
+	if (rets)
 		goto err;
-	}
 
 	cl->writing_state = MEI_WRITING;
 	cb->buf_idx = mei_hdr.length;
diff --git a/drivers/misc/mei/hbm.c b/drivers/misc/mei/hbm.c
index f706fe8a3286..f1c974a0bc0d 100644
--- a/drivers/misc/mei/hbm.c
+++ b/drivers/misc/mei/hbm.c
@@ -170,7 +170,7 @@ int mei_hbm_start_req(struct mei_device *dev)
 		dev_err(&dev->pdev->dev, "version message write failed\n");
 		dev->dev_state = MEI_DEV_RESETTING;
 		mei_reset(dev, 1);
-		return -ENODEV;
+		return -EIO;
 	}
 	dev->hbm_state = MEI_HBM_START;
 	dev->init_clients_timer = MEI_CLIENTS_INIT_TIMEOUT;
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index be42c700b15a..e4bb9aee40a1 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -216,9 +216,11 @@ static int mei_cl_irq_read(struct mei_cl *cl, struct mei_cl_cb *cb,
 			   s32 *slots, struct mei_cl_cb *cmpl_list)
 {
 	struct mei_device *dev = cl->dev;
-
 	u32 msg_slots = mei_data2slots(sizeof(struct hbm_flow_control));
 
+	int ret;
+
+
 	if (*slots < msg_slots) {
 		/* return the cancel routine */
 		list_del(&cb->list);
@@ -227,12 +229,14 @@ static int mei_cl_irq_read(struct mei_cl *cl, struct mei_cl_cb *cb,
 
 	*slots -= msg_slots;
 
-	if (mei_hbm_cl_flow_control_req(dev, cl)) {
-		cl->status = -ENODEV;
+	ret = mei_hbm_cl_flow_control_req(dev, cl);
+	if (ret) {
+		cl->status = ret;
 		cb->buf_idx = 0;
 		list_move_tail(&cb->list, &cmpl_list->list);
-		return -ENODEV;
+		return ret;
 	}
+
 	list_move_tail(&cb->list, &dev->read_list.list);
 
 	return 0;
@@ -254,6 +258,7 @@ static int mei_cl_irq_ioctl(struct mei_cl *cl, struct mei_cl_cb *cb,
 			   s32 *slots, struct mei_cl_cb *cmpl_list)
 {
 	struct mei_device *dev = cl->dev;
+	int ret;
 
 	u32 msg_slots =
 		mei_data2slots(sizeof(struct hbm_client_connect_request));
@@ -268,11 +273,12 @@ static int mei_cl_irq_ioctl(struct mei_cl *cl, struct mei_cl_cb *cb,
 
 	cl->state = MEI_FILE_CONNECTING;
 
-	if (mei_hbm_cl_connect_req(dev, cl)) {
-		cl->status = -ENODEV;
+	ret = mei_hbm_cl_connect_req(dev, cl);
+	if (ret) {
+		cl->status = ret;
 		cb->buf_idx = 0;
 		list_del(&cb->list);
-		return -ENODEV;
+		return ret;
 	}
 
 	list_move_tail(&cb->list, &dev->ctrl_rd_list.list);
-- 
cgit 


From 136698e535cd1ce59e436cc084b41370fd8f1eff Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Mon, 16 Sep 2013 23:44:44 +0300
Subject: mei: push credentials inside the irq write handler

this eventually allows as use a single write queue
both for control and data messages and removing possible
race

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/amthif.c    |  9 +++++++++
 drivers/misc/mei/client.c    | 30 +++++++++++++++++++++++++-----
 drivers/misc/mei/interrupt.c |  5 -----
 3 files changed, 34 insertions(+), 10 deletions(-)

diff --git a/drivers/misc/mei/amthif.c b/drivers/misc/mei/amthif.c
index 718f3a14c1ca..04fd38567729 100644
--- a/drivers/misc/mei/amthif.c
+++ b/drivers/misc/mei/amthif.c
@@ -460,6 +460,15 @@ int mei_amthif_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
 	u32 msg_slots = mei_data2slots(len);
 	int rets;
 
+	rets = mei_cl_flow_ctrl_creds(cl);
+	if (rets < 0)
+		return rets;
+
+	if (rets == 0) {
+		cl_dbg(dev, cl, "No flow control credentials: not sending.\n");
+		return 0;
+	}
+
 	mei_hdr.host_addr = cl->host_client_id;
 	mei_hdr.me_addr = cl->me_client_id;
 	mei_hdr.reserved = 0;
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index 1a53d961302a..2ab9d1613ffc 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -702,12 +702,33 @@ err:
 int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
 				     s32 *slots, struct mei_cl_cb *cmpl_list)
 {
-	struct mei_device *dev = cl->dev;
+	struct mei_device *dev;
+	struct mei_msg_data *buf;
 	struct mei_msg_hdr mei_hdr;
-	size_t len = cb->request_buffer.size - cb->buf_idx;
-	u32 msg_slots = mei_data2slots(len);
+	size_t len;
+	u32 msg_slots;
 	int rets;
 
+
+	if (WARN_ON(!cl || !cl->dev))
+		return -ENODEV;
+
+	dev = cl->dev;
+
+	buf = &cb->request_buffer;
+
+	rets = mei_cl_flow_ctrl_creds(cl);
+	if (rets < 0)
+		return rets;
+
+	if (rets == 0) {
+		cl_dbg(dev, cl,	"No flow control credentials: not sending.\n");
+		return 0;
+	}
+
+	len = buf->size - cb->buf_idx;
+	msg_slots = mei_data2slots(len);
+
 	mei_hdr.host_addr = cl->host_client_id;
 	mei_hdr.me_addr = cl->me_client_id;
 	mei_hdr.reserved = 0;
@@ -730,8 +751,7 @@ int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb,
 			cb->request_buffer.size, cb->buf_idx);
 
 	*slots -=  msg_slots;
-	rets = mei_write_message(dev, &mei_hdr,
-			cb->request_buffer.data + cb->buf_idx);
+	rets = mei_write_message(dev, &mei_hdr, buf->data + cb->buf_idx);
 	if (rets) {
 		cl->status = rets;
 		list_move_tail(&cb->list, &cmpl_list->list);
diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c
index e4bb9aee40a1..7a95c07e59a6 100644
--- a/drivers/misc/mei/interrupt.c
+++ b/drivers/misc/mei/interrupt.c
@@ -513,11 +513,6 @@ int mei_irq_write_handler(struct mei_device *dev, struct mei_cl_cb *cmpl_list)
 		cl = cb->cl;
 		if (cl == NULL)
 			continue;
-		if (mei_cl_flow_ctrl_creds(cl) <= 0) {
-			cl_dbg(dev, cl, "No flow control credentials, not sending.\n");
-			continue;
-		}
-
 		if (cl == &dev->iamthif_cl)
 			ret = mei_amthif_irq_write_complete(cl, cb,
 						&slots, cmpl_list);
-- 
cgit 


From a14c44d82fcff280fd1138574d4480b2bdd40216 Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Mon, 16 Sep 2013 23:44:45 +0300
Subject: mei: mei_cl_unlink: no need to loop over dev list

we can call list_del_init regardless the client is
linked or not it is always properly initialized

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/client.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index 2ab9d1613ffc..fbd319c506e6 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -318,7 +318,6 @@ int mei_cl_link(struct mei_cl *cl, int id)
 int mei_cl_unlink(struct mei_cl *cl)
 {
 	struct mei_device *dev;
-	struct mei_cl *pos, *next;
 
 	/* don't shout on error exit path */
 	if (!cl)
@@ -330,14 +329,10 @@ int mei_cl_unlink(struct mei_cl *cl)
 
 	dev = cl->dev;
 
-	list_for_each_entry_safe(pos, next, &dev->file_list, link) {
-		if (cl->host_client_id == pos->host_client_id) {
-			cl_dbg(dev, cl, "remove host client = %d, ME client = %d\n",
-				pos->host_client_id, pos->me_client_id);
-			list_del_init(&pos->link);
-			break;
-		}
-	}
+	cl_dbg(dev, cl, "unlink client");
+
+	list_del_init(&cl->link);
+
 	return 0;
 }
 
-- 
cgit 


From d396034aa860e7aaade347a535e831a4307037d3 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Mon, 2 Sep 2013 15:54:03 +0800
Subject: drivers: misc: bmp085: remove '__init' from mp085_get_of_properties()

bmp085_get_of_properties() is called by bmp085_init_client() which is
called by bmp085_probe() which is an EXPORT_SYMBOL_GPL function.

bmp085_probe() is really used as a probe function by another modules
(e.g. bmp085-i2c.c, bmp085-spi.c).

Except bmp085_get_of_properties(), all functions have no '__init', so
need remove '__init' from bmp085_get_of_properties() too, or at least,
it will report related warning:

  WARNING: vmlinux.o(.text+0x4c8a07): Section mismatch in reference from the variable .LM171 to the variable .init.text:_bmp085_get_of_properties
  The function .LM171() references
  the variable __init _bmp085_get_of_properties.
  This is often because .LM171 lacks a __init
  annotation or the annotation of _bmp085_get_of_properties is wrong.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/bmp085.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/bmp085.c b/drivers/misc/bmp085.c
index 849e2fed4da2..2704d885a9b3 100644
--- a/drivers/misc/bmp085.c
+++ b/drivers/misc/bmp085.c
@@ -374,7 +374,7 @@ int bmp085_detect(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(bmp085_detect);
 
-static void __init bmp085_get_of_properties(struct bmp085_data *data)
+static void bmp085_get_of_properties(struct bmp085_data *data)
 {
 #ifdef CONFIG_OF
 	struct device_node *np = data->dev->of_node;
-- 
cgit 


From 6d3e0d0c1ca926fd6ab557fcd5efb171148f43d6 Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Wed, 4 Sep 2013 15:35:52 +0300
Subject: hpet: remove useless check if fixmem32 is NULL

fixmem32 is assigned to address of res->data member
so the address is always valid

Actually since we are not checking for res != NULL
static analyzing is complaining about referencing the pointer
and consequent check for null.
The code snippet looks confusing also for human eyes.

Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/char/hpet.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 448ce5e29c56..c8f43295d42a 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -971,8 +971,6 @@ static acpi_status hpet_resources(struct acpi_resource *res, void *data)
 		struct acpi_resource_fixed_memory32 *fixmem32;
 
 		fixmem32 = &res->data.fixed_memory32;
-		if (!fixmem32)
-			return AE_NO_MEMORY;
 
 		hdp->hd_phys_address = fixmem32->address;
 		hdp->hd_address = ioremap(fixmem32->address,
-- 
cgit 


From 497b46dbc660d53e94abf8a46cda9747023802ba Mon Sep 17 00:00:00 2001
From: Fengguang Wu <fengguang.wu@intel.com>
Date: Mon, 2 Sep 2013 10:38:33 +0200
Subject: drivers: uio: mf624_disable_interrupt() can be static

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Rostislav Lisovy <lisovy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/uio/uio_mf624.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/uio/uio_mf624.c b/drivers/uio/uio_mf624.c
index a1768b2f4493..92cf6a9f6871 100644
--- a/drivers/uio/uio_mf624.c
+++ b/drivers/uio/uio_mf624.c
@@ -42,7 +42,7 @@
 
 enum mf624_interrupt_source {ADC, CTR4, ALL};
 
-void mf624_disable_interrupt(enum mf624_interrupt_source source,
+static void mf624_disable_interrupt(enum mf624_interrupt_source source,
 			     struct uio_info *info)
 {
 	void __iomem *INTCSR_reg = info->mem[0].internal_addr + INTCSR;
@@ -70,7 +70,7 @@ void mf624_disable_interrupt(enum mf624_interrupt_source source,
 	}
 }
 
-void mf624_enable_interrupt(enum mf624_interrupt_source source,
+static void mf624_enable_interrupt(enum mf624_interrupt_source source,
 			    struct uio_info *info)
 {
 	void __iomem *INTCSR_reg = info->mem[0].internal_addr + INTCSR;
-- 
cgit 


From e6789cd3dfb553077606ccafeb05e0043f072481 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 12 Sep 2013 07:39:59 +0200
Subject: uio: Simplify uio error path by using devres functions

Using devres functions simplify driver error path.
- Use devm_kzalloc
- Use devm_request_irq

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/uio/uio.c             | 16 ++++------------
 drivers/uio/uio_pdrv_genirq.c | 34 ++++++++++------------------------
 2 files changed, 14 insertions(+), 36 deletions(-)

diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index ba475632c5fa..11d4e0a52579 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -796,10 +796,9 @@ int __uio_register_device(struct module *owner,
 
 	info->uio_dev = NULL;
 
-	idev = kzalloc(sizeof(*idev), GFP_KERNEL);
+	idev = devm_kzalloc(parent, sizeof(*idev), GFP_KERNEL);
 	if (!idev) {
-		ret = -ENOMEM;
-		goto err_kzalloc;
+		return -ENOMEM;
 	}
 
 	idev->owner = owner;
@@ -809,7 +808,7 @@ int __uio_register_device(struct module *owner,
 
 	ret = uio_get_minor(idev);
 	if (ret)
-		goto err_get_minor;
+		return ret;
 
 	idev->dev = device_create(&uio_class, parent,
 				  MKDEV(uio_major, idev->minor), idev,
@@ -827,7 +826,7 @@ int __uio_register_device(struct module *owner,
 	info->uio_dev = idev;
 
 	if (info->irq && (info->irq != UIO_IRQ_CUSTOM)) {
-		ret = request_irq(info->irq, uio_interrupt,
+		ret = devm_request_irq(parent, info->irq, uio_interrupt,
 				  info->irq_flags, info->name, idev);
 		if (ret)
 			goto err_request_irq;
@@ -841,9 +840,6 @@ err_uio_dev_add_attributes:
 	device_destroy(&uio_class, MKDEV(uio_major, idev->minor));
 err_device_create:
 	uio_free_minor(idev);
-err_get_minor:
-	kfree(idev);
-err_kzalloc:
 	return ret;
 }
 EXPORT_SYMBOL_GPL(__uio_register_device);
@@ -864,13 +860,9 @@ void uio_unregister_device(struct uio_info *info)
 
 	uio_free_minor(idev);
 
-	if (info->irq && (info->irq != UIO_IRQ_CUSTOM))
-		free_irq(info->irq, idev);
-
 	uio_dev_del_attributes(idev);
 
 	device_destroy(&uio_class, MKDEV(uio_major, idev->minor));
-	kfree(idev);
 
 	return;
 }
diff --git a/drivers/uio/uio_pdrv_genirq.c b/drivers/uio/uio_pdrv_genirq.c
index 90ff17a0202f..76669313e9a7 100644
--- a/drivers/uio/uio_pdrv_genirq.c
+++ b/drivers/uio/uio_pdrv_genirq.c
@@ -112,11 +112,11 @@ static int uio_pdrv_genirq_probe(struct platform_device *pdev)
 
 	if (pdev->dev.of_node) {
 		/* alloc uioinfo for one device */
-		uioinfo = kzalloc(sizeof(*uioinfo), GFP_KERNEL);
+		uioinfo = devm_kzalloc(&pdev->dev, sizeof(*uioinfo),
+				       GFP_KERNEL);
 		if (!uioinfo) {
-			ret = -ENOMEM;
 			dev_err(&pdev->dev, "unable to kmalloc\n");
-			return ret;
+			return -ENOMEM;
 		}
 		uioinfo->name = pdev->dev.of_node->name;
 		uioinfo->version = "devicetree";
@@ -125,20 +125,19 @@ static int uio_pdrv_genirq_probe(struct platform_device *pdev)
 
 	if (!uioinfo || !uioinfo->name || !uioinfo->version) {
 		dev_err(&pdev->dev, "missing platform_data\n");
-		goto bad0;
+		return ret;
 	}
 
 	if (uioinfo->handler || uioinfo->irqcontrol ||
 	    uioinfo->irq_flags & IRQF_SHARED) {
 		dev_err(&pdev->dev, "interrupt configuration error\n");
-		goto bad0;
+		return ret;
 	}
 
-	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv) {
-		ret = -ENOMEM;
 		dev_err(&pdev->dev, "unable to kmalloc\n");
-		goto bad0;
+		return -ENOMEM;
 	}
 
 	priv->uioinfo = uioinfo;
@@ -153,7 +152,7 @@ static int uio_pdrv_genirq_probe(struct platform_device *pdev)
 			uioinfo->irq = UIO_IRQ_NONE;
 		else if (ret < 0) {
 			dev_err(&pdev->dev, "failed to get IRQ\n");
-			goto bad1;
+			return ret;
 		}
 	}
 
@@ -209,20 +208,12 @@ static int uio_pdrv_genirq_probe(struct platform_device *pdev)
 	ret = uio_register_device(&pdev->dev, priv->uioinfo);
 	if (ret) {
 		dev_err(&pdev->dev, "unable to register uio device\n");
-		goto bad2;
+		pm_runtime_disable(&pdev->dev);
+		return ret;
 	}
 
 	platform_set_drvdata(pdev, priv);
 	return 0;
- bad2:
-	pm_runtime_disable(&pdev->dev);
- bad1:
-	kfree(priv);
- bad0:
-	/* kfree uioinfo for OF */
-	if (pdev->dev.of_node)
-		kfree(uioinfo);
-	return ret;
 }
 
 static int uio_pdrv_genirq_remove(struct platform_device *pdev)
@@ -235,11 +226,6 @@ static int uio_pdrv_genirq_remove(struct platform_device *pdev)
 	priv->uioinfo->handler = NULL;
 	priv->uioinfo->irqcontrol = NULL;
 
-	/* kfree uioinfo for OF */
-	if (pdev->dev.of_node)
-		kfree(priv->uioinfo);
-
-	kfree(priv);
 	return 0;
 }
 
-- 
cgit 


From e56516867f3de862df5fd9cf30e54a0b73921e83 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:37:46 +0900
Subject: uio: uio_aec: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/uio/uio_aec.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/uio/uio_aec.c b/drivers/uio/uio_aec.c
index f3611c2d83b6..1549fab633c6 100644
--- a/drivers/uio/uio_aec.c
+++ b/drivers/uio/uio_aec.c
@@ -147,7 +147,6 @@ static void remove(struct pci_dev *pdev)
 	uio_unregister_device(info);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 	iounmap(info->priv);
 
 	kfree(info);
-- 
cgit 


From 8a4c10f8ec89fa40b0de33ce3ebe00781d010f3d Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:38:44 +0900
Subject: uio: uio_cif: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/uio/uio_cif.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/uio/uio_cif.c b/drivers/uio/uio_cif.c
index 22cdf385ab33..30f533ce3758 100644
--- a/drivers/uio/uio_cif.c
+++ b/drivers/uio/uio_cif.c
@@ -106,7 +106,6 @@ static void hilscher_pci_remove(struct pci_dev *dev)
 	uio_unregister_device(info);
 	pci_release_regions(dev);
 	pci_disable_device(dev);
-	pci_set_drvdata(dev, NULL);
 	iounmap(info->mem[0].internal_addr);
 
 	kfree (info);
-- 
cgit 


From 1129308885bb9031a2d714523368894338cf9e18 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:39:08 +0900
Subject: uio: uio_mf624: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/uio/uio_mf624.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/uio/uio_mf624.c b/drivers/uio/uio_mf624.c
index 92cf6a9f6871..f764adbfe036 100644
--- a/drivers/uio/uio_mf624.c
+++ b/drivers/uio/uio_mf624.c
@@ -220,7 +220,6 @@ static void mf624_pci_remove(struct pci_dev *dev)
 	uio_unregister_device(info);
 	pci_release_regions(dev);
 	pci_disable_device(dev);
-	pci_set_drvdata(dev, NULL);
 
 	iounmap(info->mem[0].internal_addr);
 	iounmap(info->mem[1].internal_addr);
-- 
cgit 


From c7a8eb001f4cdeeab912a9d59b02d93686998138 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:39:26 +0900
Subject: uio: uio_netx: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/uio/uio_netx.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/uio/uio_netx.c b/drivers/uio/uio_netx.c
index 28a766b9e198..4c345db8b016 100644
--- a/drivers/uio/uio_netx.c
+++ b/drivers/uio/uio_netx.c
@@ -127,7 +127,6 @@ static void netx_pci_remove(struct pci_dev *dev)
 	uio_unregister_device(info);
 	pci_release_regions(dev);
 	pci_disable_device(dev);
-	pci_set_drvdata(dev, NULL);
 	iounmap(info->mem[0].internal_addr);
 
 	kfree(info);
-- 
cgit 


From 37ecdbb012bf3a466d4dda85a93d1c69dc483d3a Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:39:55 +0900
Subject: uio: uio_sercos3: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/uio/uio_sercos3.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/uio/uio_sercos3.c b/drivers/uio/uio_sercos3.c
index 541983217085..9cfdfcafa262 100644
--- a/drivers/uio/uio_sercos3.c
+++ b/drivers/uio/uio_sercos3.c
@@ -188,7 +188,6 @@ static void sercos3_pci_remove(struct pci_dev *dev)
 	uio_unregister_device(info);
 	pci_release_regions(dev);
 	pci_disable_device(dev);
-	pci_set_drvdata(dev, NULL);
 	for (i = 0; i < 5; i++) {
 		if (info->mem[i].internal_addr)
 			iounmap(info->mem[i].internal_addr);
-- 
cgit 


From 20055477566958e751a20290aa45ae21bd4b5e11 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 14:14:50 +0900
Subject: char: xilinx_hwicap: Remove casting the return value which is a void
 pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/char/xilinx_hwicap/xilinx_hwicap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.c b/drivers/char/xilinx_hwicap/xilinx_hwicap.c
index 5224da5202d3..a7f65c2b2cb5 100644
--- a/drivers/char/xilinx_hwicap/xilinx_hwicap.c
+++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.c
@@ -721,7 +721,7 @@ static int hwicap_remove(struct device *dev)
 {
 	struct hwicap_drvdata *drvdata;
 
-	drvdata = (struct hwicap_drvdata *)dev_get_drvdata(dev);
+	drvdata = dev_get_drvdata(dev);
 
 	if (!drvdata)
 		return 0;
-- 
cgit 


From bbf831dfe8538ef3797c9603b7897d4ad9ef9d4a Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 14:15:52 +0900
Subject: misc: ibmasm: Remove casting the return value which is a void pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/ibmasm/module.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/ibmasm/module.c b/drivers/misc/ibmasm/module.c
index 0346d87c5fed..0c290e40ce06 100644
--- a/drivers/misc/ibmasm/module.c
+++ b/drivers/misc/ibmasm/module.c
@@ -165,7 +165,7 @@ error_resources:
 
 static void ibmasm_remove_one(struct pci_dev *pdev)
 {
-	struct service_processor *sp = (struct service_processor *)pci_get_drvdata(pdev);
+	struct service_processor *sp = pci_get_drvdata(pdev);
 
 	dbg("Unregistering UART\n");
 	ibmasm_unregister_uart(sp);
-- 
cgit 


From 684116caa44d1642fcbd4d1d5b9cb975572cfa0b Mon Sep 17 00:00:00 2001
From: Elad Wexler <elad.wexler@gmail.com>
Date: Sat, 14 Sep 2013 18:02:11 +0300
Subject: Drivers: char: misc: 'misc_deregister()' changed the 'mutex_unlock'
 logic upon an error

This change improves code readability & is less error-prone.
For example: case adding more error paths one should remember to call 'mutex_unlock'

Signed-off-by: Elad Wexler <elad.wexler@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/char/misc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index 190d4423653f..2f685f6eda48 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -193,8 +193,8 @@ int misc_register(struct miscdevice * misc)
 	if (misc->minor == MISC_DYNAMIC_MINOR) {
 		int i = find_first_zero_bit(misc_minors, DYNAMIC_MINORS);
 		if (i >= DYNAMIC_MINORS) {
-			mutex_unlock(&misc_mtx);
-			return -EBUSY;
+			err = -EBUSY;
+			goto out;
 		}
 		misc->minor = DYNAMIC_MINORS - i - 1;
 		set_bit(i, misc_minors);
@@ -203,8 +203,8 @@ int misc_register(struct miscdevice * misc)
 
 		list_for_each_entry(c, &misc_list, list) {
 			if (c->minor == misc->minor) {
-				mutex_unlock(&misc_mtx);
-				return -EBUSY;
+				err = -EBUSY;
+				goto out;
 			}
 		}
 	}
-- 
cgit 


From 3173463418af18b6c7b30bc6a94777780129291d Mon Sep 17 00:00:00 2001
From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Sun, 22 Sep 2013 00:27:34 +0200
Subject: hv: Change variable type to bool

The variable execute_shutdown is only assigned the values true and
false. Change its type to bool.

The simplified semantic patch that find this problem is as
follows (http://coccinelle.lip6.fr/):

@exists@
type T;
identifier b;
@@
- T
+ bool
  b = ...;
  ... when any
  b = \(true\|false\)

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hv/hv_util.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hv/hv_util.c b/drivers/hv/hv_util.c
index cb82233541b1..9113850edb43 100644
--- a/drivers/hv/hv_util.c
+++ b/drivers/hv/hv_util.c
@@ -82,7 +82,7 @@ static void shutdown_onchannelcallback(void *context)
 	struct vmbus_channel *channel = context;
 	u32 recvlen;
 	u64 requestid;
-	u8  execute_shutdown = false;
+	bool execute_shutdown = false;
 	u8  *shut_txf_buf = util_shutdown.recv_buffer;
 
 	struct shutdown_msg_data *shutdown_msg;
-- 
cgit 


From ae647589a419d65778a7d06bd608a6fd526676e4 Mon Sep 17 00:00:00 2001
From: Libo Chen <libo.chen@huawei.com>
Date: Fri, 13 Sep 2013 14:49:41 -0700
Subject: drivers/pcmcia/pd6729.c: convert to module_pci_driver

Use module_pci_driver instead of init/exit, make code clean.

Signed-off-by: Libo Chen <libo.chen@huawei.com>
Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pcmcia/pd6729.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/pcmcia/pd6729.c b/drivers/pcmcia/pd6729.c
index a4c16ee5c718..622dd6fe7347 100644
--- a/drivers/pcmcia/pd6729.c
+++ b/drivers/pcmcia/pd6729.c
@@ -777,15 +777,4 @@ static struct pci_driver pd6729_pci_driver = {
 	.remove		= pd6729_pci_remove,
 };
 
-static int pd6729_module_init(void)
-{
-	return pci_register_driver(&pd6729_pci_driver);
-}
-
-static void pd6729_module_exit(void)
-{
-	pci_unregister_driver(&pd6729_pci_driver);
-}
-
-module_init(pd6729_module_init);
-module_exit(pd6729_module_exit);
+module_pci_driver(pd6729_pci_driver);
-- 
cgit 


From 7d19143fe6bc928aab9968fd47fe39b4996a3297 Mon Sep 17 00:00:00 2001
From: Libo Chen <libo.chen@huawei.com>
Date: Fri, 13 Sep 2013 14:49:42 -0700
Subject: drivers/pcmcia/yenta_socket.c: convert to module_pci_driver

Use module_pci_driver instead of init/exit, make code clean.

Signed-off-by: Libo Chen <libo.chen@huawei.com>
Cc: Dominik Brodowski <linux@dominikbrodowski.net>
Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pcmcia/yenta_socket.c | 16 +---------------
 1 file changed, 1 insertion(+), 15 deletions(-)

diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c
index 6b4ff099fb13..dc18a3a5e010 100644
--- a/drivers/pcmcia/yenta_socket.c
+++ b/drivers/pcmcia/yenta_socket.c
@@ -1439,20 +1439,6 @@ static struct pci_driver yenta_cardbus_driver = {
 	.driver.pm	= YENTA_PM_OPS,
 };
 
-
-static int __init yenta_socket_init(void)
-{
-	return pci_register_driver(&yenta_cardbus_driver);
-}
-
-
-static void __exit yenta_socket_exit(void)
-{
-	pci_unregister_driver(&yenta_cardbus_driver);
-}
-
-
-module_init(yenta_socket_init);
-module_exit(yenta_socket_exit);
+module_pci_driver(yenta_cardbus_driver);
 
 MODULE_LICENSE("GPL");
-- 
cgit 


From 03f3a9107f5e848a42f25e3ab133db9f3b6546c7 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 13 Sep 2013 11:32:49 -0700
Subject: hv: use dev_groups for device attributes

This patch is the first in a series that moves the hv bus code to use the
dev_groups field instead of dev_attrs, as dev_attrs is going away in future
kernel releases.

It moves the id sysfs file to the dev_groups structure, and creates the needed
show/store functions, instead of relying on one "universal" function for this.
By doing this, it removes the need for this to be in a temporary structure.

Tested-by: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hv/channel.c   |  1 -
 drivers/hv/vmbus_drv.c | 23 ++++++++++++++++++-----
 include/linux/hyperv.h |  1 -
 3 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 6de6c98ce6eb..b58a1785d038 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -69,7 +69,6 @@ void vmbus_get_debug_info(struct vmbus_channel *channel,
 	u8 monitor_group = (u8)channel->offermsg.monitorid / 32;
 	u8 monitor_offset = (u8)channel->offermsg.monitorid % 32;
 
-	debuginfo->relid = channel->offermsg.child_relid;
 	debuginfo->state = channel->state;
 	memcpy(&debuginfo->interfacetype,
 	       &channel->offermsg.offer.if_type, sizeof(uuid_le));
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index f9fe46f52cfa..5c21b22860af 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -47,7 +47,6 @@ static struct completion probe_event;
 static int irq;
 
 struct hv_device_info {
-	u32 chn_id;
 	u32 chn_state;
 	uuid_le chn_type;
 	uuid_le chn_instance;
@@ -83,7 +82,6 @@ static void get_channel_info(struct hv_device *device,
 
 	vmbus_get_debug_info(device->channel, &debug_info);
 
-	info->chn_id = debug_info.relid;
 	info->chn_state = debug_info.state;
 	memcpy(&info->chn_type, &debug_info.interfacetype,
 	       sizeof(uuid_le));
@@ -156,8 +154,6 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
 		ret = sprintf(buf, "vmbus:%s\n", alias_name);
 	} else if (!strcmp(dev_attr->attr.name, "state")) {
 		ret = sprintf(buf, "%d\n", device_info->chn_state);
-	} else if (!strcmp(dev_attr->attr.name, "id")) {
-		ret = sprintf(buf, "%d\n", device_info->chn_id);
 	} else if (!strcmp(dev_attr->attr.name, "out_intr_mask")) {
 		ret = sprintf(buf, "%d\n", device_info->outbound.int_mask);
 	} else if (!strcmp(dev_attr->attr.name, "out_read_index")) {
@@ -204,9 +200,25 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
 	return ret;
 }
 
+static ssize_t id_show(struct device *dev, struct device_attribute *dev_attr,
+		       char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	return sprintf(buf, "%d\n", hv_dev->channel->offermsg.child_relid);
+}
+static DEVICE_ATTR_RO(id);
+
+static struct attribute *vmbus_attrs[] = {
+	&dev_attr_id.attr,
+	NULL,
+};
+ATTRIBUTE_GROUPS(vmbus);
+
 /* Set up per device attributes in /sys/bus/vmbus/devices/<bus device> */
 static struct device_attribute vmbus_device_attrs[] = {
-	__ATTR(id, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(state, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(class_id, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(device_id, S_IRUGO, vmbus_show_device_attr, NULL),
@@ -384,6 +396,7 @@ static struct bus_type  hv_bus = {
 	.probe =		vmbus_probe,
 	.uevent =		vmbus_uevent,
 	.dev_attrs =	vmbus_device_attrs,
+	.dev_groups =		vmbus_groups,
 };
 
 static const char *driver_name = "hyperv";
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index a3b8b2e2d244..45e9b65e6ab6 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -900,7 +900,6 @@ enum vmbus_channel_state {
 };
 
 struct vmbus_channel_debug_info {
-	u32 relid;
 	enum vmbus_channel_state state;
 	uuid_le interfacetype;
 	uuid_le interface_instance;
-- 
cgit 


From a8fb5f3d582d3b4997d9449ceb82a0223d169486 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 13 Sep 2013 11:32:50 -0700
Subject: hv: move "state" bus attribute to dev_groups

This moves the "state" bus attribute to the dev_groups structure,
removing the need for it to be in a temporary structure.

Tested-by: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hv/channel.c   |  1 -
 drivers/hv/vmbus_drv.c | 17 ++++++++++++-----
 include/linux/hyperv.h |  1 -
 3 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index b58a1785d038..64f19f226c4e 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -69,7 +69,6 @@ void vmbus_get_debug_info(struct vmbus_channel *channel,
 	u8 monitor_group = (u8)channel->offermsg.monitorid / 32;
 	u8 monitor_offset = (u8)channel->offermsg.monitorid % 32;
 
-	debuginfo->state = channel->state;
 	memcpy(&debuginfo->interfacetype,
 	       &channel->offermsg.offer.if_type, sizeof(uuid_le));
 	memcpy(&debuginfo->interface_instance,
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 5c21b22860af..1e5bc9c49c63 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -47,7 +47,6 @@ static struct completion probe_event;
 static int irq;
 
 struct hv_device_info {
-	u32 chn_state;
 	uuid_le chn_type;
 	uuid_le chn_instance;
 
@@ -82,7 +81,6 @@ static void get_channel_info(struct hv_device *device,
 
 	vmbus_get_debug_info(device->channel, &debug_info);
 
-	info->chn_state = debug_info.state;
 	memcpy(&info->chn_type, &debug_info.interfacetype,
 	       sizeof(uuid_le));
 	memcpy(&info->chn_instance, &debug_info.interface_instance,
@@ -152,8 +150,6 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
 	} else if (!strcmp(dev_attr->attr.name, "modalias")) {
 		print_alias_name(hv_dev, alias_name);
 		ret = sprintf(buf, "vmbus:%s\n", alias_name);
-	} else if (!strcmp(dev_attr->attr.name, "state")) {
-		ret = sprintf(buf, "%d\n", device_info->chn_state);
 	} else if (!strcmp(dev_attr->attr.name, "out_intr_mask")) {
 		ret = sprintf(buf, "%d\n", device_info->outbound.int_mask);
 	} else if (!strcmp(dev_attr->attr.name, "out_read_index")) {
@@ -211,15 +207,26 @@ static ssize_t id_show(struct device *dev, struct device_attribute *dev_attr,
 }
 static DEVICE_ATTR_RO(id);
 
+static ssize_t state_show(struct device *dev, struct device_attribute *dev_attr,
+			  char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	return sprintf(buf, "%d\n", hv_dev->channel->state);
+}
+static DEVICE_ATTR_RO(state);
+
 static struct attribute *vmbus_attrs[] = {
 	&dev_attr_id.attr,
+	&dev_attr_state.attr,
 	NULL,
 };
 ATTRIBUTE_GROUPS(vmbus);
 
 /* Set up per device attributes in /sys/bus/vmbus/devices/<bus device> */
 static struct device_attribute vmbus_device_attrs[] = {
-	__ATTR(state, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(class_id, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(device_id, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(monitor_id, S_IRUGO, vmbus_show_device_attr, NULL),
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 45e9b65e6ab6..b350a8cfcff6 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -900,7 +900,6 @@ enum vmbus_channel_state {
 };
 
 struct vmbus_channel_debug_info {
-	enum vmbus_channel_state state;
 	uuid_le interfacetype;
 	uuid_le interface_instance;
 	u32 monitorid;
-- 
cgit 


From 5ffd00e241ea30fdd907d56419170a1e1338664c Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 13 Sep 2013 11:32:51 -0700
Subject: hv: move "monitor_id" bus attribute to dev_groups

This moves the "state" bus attribute to the dev_groups structure,
removing the need for it to be in a temporary structure.

Tested-by: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hv/channel.c   |  2 --
 drivers/hv/vmbus_drv.c | 18 ++++++++++++------
 include/linux/hyperv.h |  1 -
 3 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 64f19f226c4e..f26a5d252547 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -77,8 +77,6 @@ void vmbus_get_debug_info(struct vmbus_channel *channel,
 
 	monitorpage = (struct hv_monitor_page *)vmbus_connection.monitor_pages;
 
-	debuginfo->monitorid = channel->offermsg.monitorid;
-
 	debuginfo->servermonitor_pending =
 			monitorpage->trigger_group[monitor_group].pending;
 	debuginfo->servermonitor_latency =
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 1e5bc9c49c63..2114ecb83c93 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -50,7 +50,6 @@ struct hv_device_info {
 	uuid_le chn_type;
 	uuid_le chn_instance;
 
-	u32 monitor_id;
 	u32 server_monitor_pending;
 	u32 server_monitor_latency;
 	u32 server_monitor_conn_id;
@@ -86,8 +85,6 @@ static void get_channel_info(struct hv_device *device,
 	memcpy(&info->chn_instance, &debug_info.interface_instance,
 	       sizeof(uuid_le));
 
-	info->monitor_id = debug_info.monitorid;
-
 	info->server_monitor_pending = debug_info.servermonitor_pending;
 	info->server_monitor_latency = debug_info.servermonitor_latency;
 	info->server_monitor_conn_id = debug_info.servermonitor_connectionid;
@@ -174,8 +171,6 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
 	} else if (!strcmp(dev_attr->attr.name, "in_write_bytes_avail")) {
 		ret = sprintf(buf, "%d\n",
 			       device_info->inbound.bytes_avail_towrite);
-	} else if (!strcmp(dev_attr->attr.name, "monitor_id")) {
-		ret = sprintf(buf, "%d\n", device_info->monitor_id);
 	} else if (!strcmp(dev_attr->attr.name, "server_monitor_pending")) {
 		ret = sprintf(buf, "%d\n", device_info->server_monitor_pending);
 	} else if (!strcmp(dev_attr->attr.name, "server_monitor_latency")) {
@@ -218,9 +213,21 @@ static ssize_t state_show(struct device *dev, struct device_attribute *dev_attr,
 }
 static DEVICE_ATTR_RO(state);
 
+static ssize_t monitor_id_show(struct device *dev,
+			       struct device_attribute *dev_attr, char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	return sprintf(buf, "%d\n", hv_dev->channel->offermsg.monitorid);
+}
+static DEVICE_ATTR_RO(monitor_id);
+
 static struct attribute *vmbus_attrs[] = {
 	&dev_attr_id.attr,
 	&dev_attr_state.attr,
+	&dev_attr_monitor_id.attr,
 	NULL,
 };
 ATTRIBUTE_GROUPS(vmbus);
@@ -229,7 +236,6 @@ ATTRIBUTE_GROUPS(vmbus);
 static struct device_attribute vmbus_device_attrs[] = {
 	__ATTR(class_id, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(device_id, S_IRUGO, vmbus_show_device_attr, NULL),
-	__ATTR(monitor_id, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(modalias, S_IRUGO, vmbus_show_device_attr, NULL),
 
 	__ATTR(server_monitor_pending, S_IRUGO, vmbus_show_device_attr, NULL),
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index b350a8cfcff6..888a8e533d61 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -902,7 +902,6 @@ enum vmbus_channel_state {
 struct vmbus_channel_debug_info {
 	uuid_le interfacetype;
 	uuid_le interface_instance;
-	u32 monitorid;
 	u32 servermonitor_pending;
 	u32 servermonitor_latency;
 	u32 servermonitor_connectionid;
-- 
cgit 


From 647fa371c404606f82fb1c043c87807b5df48f2c Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 13 Sep 2013 11:32:52 -0700
Subject: hv: move "modalias" bus attribute to dev_groups

This moves the "state" bus attribute to the dev_groups structure.

Tested-by: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hv/vmbus_drv.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 2114ecb83c93..e3f4370036ab 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -131,7 +131,6 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
 {
 	struct hv_device *hv_dev = device_to_hv_device(dev);
 	struct hv_device_info *device_info;
-	char alias_name[VMBUS_ALIAS_LEN + 1];
 	int ret = 0;
 
 	device_info = kzalloc(sizeof(struct hv_device_info), GFP_KERNEL);
@@ -144,9 +143,6 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
 		ret = sprintf(buf, "{%pUl}\n", device_info->chn_type.b);
 	} else if (!strcmp(dev_attr->attr.name, "device_id")) {
 		ret = sprintf(buf, "{%pUl}\n", device_info->chn_instance.b);
-	} else if (!strcmp(dev_attr->attr.name, "modalias")) {
-		print_alias_name(hv_dev, alias_name);
-		ret = sprintf(buf, "vmbus:%s\n", alias_name);
 	} else if (!strcmp(dev_attr->attr.name, "out_intr_mask")) {
 		ret = sprintf(buf, "%d\n", device_info->outbound.int_mask);
 	} else if (!strcmp(dev_attr->attr.name, "out_read_index")) {
@@ -224,10 +220,22 @@ static ssize_t monitor_id_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(monitor_id);
 
+static ssize_t modalias_show(struct device *dev,
+			     struct device_attribute *dev_attr, char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+	char alias_name[VMBUS_ALIAS_LEN + 1];
+
+	print_alias_name(hv_dev, alias_name);
+	return sprintf(buf, "vmbus:%s\n", alias_name);
+}
+static DEVICE_ATTR_RO(modalias);
+
 static struct attribute *vmbus_attrs[] = {
 	&dev_attr_id.attr,
 	&dev_attr_state.attr,
 	&dev_attr_monitor_id.attr,
+	&dev_attr_modalias.attr,
 	NULL,
 };
 ATTRIBUTE_GROUPS(vmbus);
@@ -236,7 +244,6 @@ ATTRIBUTE_GROUPS(vmbus);
 static struct device_attribute vmbus_device_attrs[] = {
 	__ATTR(class_id, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(device_id, S_IRUGO, vmbus_show_device_attr, NULL),
-	__ATTR(modalias, S_IRUGO, vmbus_show_device_attr, NULL),
 
 	__ATTR(server_monitor_pending, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(server_monitor_latency, S_IRUGO, vmbus_show_device_attr, NULL),
-- 
cgit 


From 68234c049cc1637a8898ebb3743c8587560929b7 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 13 Sep 2013 11:32:53 -0700
Subject: hv: move "class_id" bus attribute to dev_groups

This moves the "class_id" bus attribute to the dev_groups structure,
removing the need for it to be in a temporary structure.

Tested-by: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hv/channel.c   |  2 --
 drivers/hv/vmbus_drv.c | 22 +++++++++++++++-------
 include/linux/hyperv.h |  1 -
 3 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index f26a5d252547..df9499c1ef32 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -69,8 +69,6 @@ void vmbus_get_debug_info(struct vmbus_channel *channel,
 	u8 monitor_group = (u8)channel->offermsg.monitorid / 32;
 	u8 monitor_offset = (u8)channel->offermsg.monitorid % 32;
 
-	memcpy(&debuginfo->interfacetype,
-	       &channel->offermsg.offer.if_type, sizeof(uuid_le));
 	memcpy(&debuginfo->interface_instance,
 	       &channel->offermsg.offer.if_instance,
 	       sizeof(uuid_le));
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index e3f4370036ab..48258ae3467d 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -47,7 +47,6 @@ static struct completion probe_event;
 static int irq;
 
 struct hv_device_info {
-	uuid_le chn_type;
 	uuid_le chn_instance;
 
 	u32 server_monitor_pending;
@@ -80,8 +79,6 @@ static void get_channel_info(struct hv_device *device,
 
 	vmbus_get_debug_info(device->channel, &debug_info);
 
-	memcpy(&info->chn_type, &debug_info.interfacetype,
-	       sizeof(uuid_le));
 	memcpy(&info->chn_instance, &debug_info.interface_instance,
 	       sizeof(uuid_le));
 
@@ -139,9 +136,7 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
 
 	get_channel_info(hv_dev, device_info);
 
-	if (!strcmp(dev_attr->attr.name, "class_id")) {
-		ret = sprintf(buf, "{%pUl}\n", device_info->chn_type.b);
-	} else if (!strcmp(dev_attr->attr.name, "device_id")) {
+	if (!strcmp(dev_attr->attr.name, "device_id")) {
 		ret = sprintf(buf, "{%pUl}\n", device_info->chn_instance.b);
 	} else if (!strcmp(dev_attr->attr.name, "out_intr_mask")) {
 		ret = sprintf(buf, "%d\n", device_info->outbound.int_mask);
@@ -220,6 +215,18 @@ static ssize_t monitor_id_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(monitor_id);
 
+static ssize_t class_id_show(struct device *dev,
+			       struct device_attribute *dev_attr, char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	return sprintf(buf, "{%pUl}\n",
+		       hv_dev->channel->offermsg.offer.if_type.b);
+}
+static DEVICE_ATTR_RO(class_id);
+
 static ssize_t modalias_show(struct device *dev,
 			     struct device_attribute *dev_attr, char *buf)
 {
@@ -231,10 +238,12 @@ static ssize_t modalias_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(modalias);
 
+
 static struct attribute *vmbus_attrs[] = {
 	&dev_attr_id.attr,
 	&dev_attr_state.attr,
 	&dev_attr_monitor_id.attr,
+	&dev_attr_class_id.attr,
 	&dev_attr_modalias.attr,
 	NULL,
 };
@@ -242,7 +251,6 @@ ATTRIBUTE_GROUPS(vmbus);
 
 /* Set up per device attributes in /sys/bus/vmbus/devices/<bus device> */
 static struct device_attribute vmbus_device_attrs[] = {
-	__ATTR(class_id, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(device_id, S_IRUGO, vmbus_show_device_attr, NULL),
 
 	__ATTR(server_monitor_pending, S_IRUGO, vmbus_show_device_attr, NULL),
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 888a8e533d61..8ccf6f686272 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -900,7 +900,6 @@ enum vmbus_channel_state {
 };
 
 struct vmbus_channel_debug_info {
-	uuid_le interfacetype;
 	uuid_le interface_instance;
 	u32 servermonitor_pending;
 	u32 servermonitor_latency;
-- 
cgit 


From 7c55e1d0e64cf5acd8cf4a25927e2c7c322063aa Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 13 Sep 2013 11:32:54 -0700
Subject: hv: move "device_id" bus attribute to dev_groups

This moves the "device_id" bus attribute to the dev_groups structure,
removing the need for it to be in a temporary structure.

Tested-by: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hv/channel.c   |  4 ----
 drivers/hv/vmbus_drv.c | 24 ++++++++++++++----------
 include/linux/hyperv.h |  1 -
 3 files changed, 14 insertions(+), 15 deletions(-)

diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index df9499c1ef32..dde30b48c56c 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -69,10 +69,6 @@ void vmbus_get_debug_info(struct vmbus_channel *channel,
 	u8 monitor_group = (u8)channel->offermsg.monitorid / 32;
 	u8 monitor_offset = (u8)channel->offermsg.monitorid % 32;
 
-	memcpy(&debuginfo->interface_instance,
-	       &channel->offermsg.offer.if_instance,
-	       sizeof(uuid_le));
-
 	monitorpage = (struct hv_monitor_page *)vmbus_connection.monitor_pages;
 
 	debuginfo->servermonitor_pending =
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 48258ae3467d..944dc4b0b54d 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -47,8 +47,6 @@ static struct completion probe_event;
 static int irq;
 
 struct hv_device_info {
-	uuid_le chn_instance;
-
 	u32 server_monitor_pending;
 	u32 server_monitor_latency;
 	u32 server_monitor_conn_id;
@@ -79,9 +77,6 @@ static void get_channel_info(struct hv_device *device,
 
 	vmbus_get_debug_info(device->channel, &debug_info);
 
-	memcpy(&info->chn_instance, &debug_info.interface_instance,
-	       sizeof(uuid_le));
-
 	info->server_monitor_pending = debug_info.servermonitor_pending;
 	info->server_monitor_latency = debug_info.servermonitor_latency;
 	info->server_monitor_conn_id = debug_info.servermonitor_connectionid;
@@ -136,9 +131,7 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
 
 	get_channel_info(hv_dev, device_info);
 
-	if (!strcmp(dev_attr->attr.name, "device_id")) {
-		ret = sprintf(buf, "{%pUl}\n", device_info->chn_instance.b);
-	} else if (!strcmp(dev_attr->attr.name, "out_intr_mask")) {
+	if (!strcmp(dev_attr->attr.name, "out_intr_mask")) {
 		ret = sprintf(buf, "%d\n", device_info->outbound.int_mask);
 	} else if (!strcmp(dev_attr->attr.name, "out_read_index")) {
 		ret = sprintf(buf, "%d\n", device_info->outbound.read_idx);
@@ -227,6 +220,18 @@ static ssize_t class_id_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(class_id);
 
+static ssize_t device_id_show(struct device *dev,
+			      struct device_attribute *dev_attr, char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	return sprintf(buf, "{%pUl}\n",
+		       hv_dev->channel->offermsg.offer.if_instance.b);
+}
+static DEVICE_ATTR_RO(device_id);
+
 static ssize_t modalias_show(struct device *dev,
 			     struct device_attribute *dev_attr, char *buf)
 {
@@ -244,6 +249,7 @@ static struct attribute *vmbus_attrs[] = {
 	&dev_attr_state.attr,
 	&dev_attr_monitor_id.attr,
 	&dev_attr_class_id.attr,
+	&dev_attr_device_id.attr,
 	&dev_attr_modalias.attr,
 	NULL,
 };
@@ -251,8 +257,6 @@ ATTRIBUTE_GROUPS(vmbus);
 
 /* Set up per device attributes in /sys/bus/vmbus/devices/<bus device> */
 static struct device_attribute vmbus_device_attrs[] = {
-	__ATTR(device_id, S_IRUGO, vmbus_show_device_attr, NULL),
-
 	__ATTR(server_monitor_pending, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(server_monitor_latency, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(server_monitor_conn_id, S_IRUGO, vmbus_show_device_attr, NULL),
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 8ccf6f686272..687c01b85037 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -900,7 +900,6 @@ enum vmbus_channel_state {
 };
 
 struct vmbus_channel_debug_info {
-	uuid_le interface_instance;
 	u32 servermonitor_pending;
 	u32 servermonitor_latency;
 	u32 servermonitor_connectionid;
-- 
cgit 


From 8681db445ed407167cd0d78c48727773b132367b Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 13 Sep 2013 11:32:55 -0700
Subject: hv: make "monitor_pages" a "real" pointer array

monitor_pages was a void pointer, containing an unknown number of arrays that
we just "knew" were a child and parent array of a specific size.  Instead of
that implicit knowledge, let's make them a real pointer, allowing us to have
type safety, and a semblance of sane addressing schemes.

Tested-by: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hv/channel.c      | 10 ++++------
 drivers/hv/connection.c   | 21 ++++++++++-----------
 drivers/hv/hyperv_vmbus.h |  2 +-
 3 files changed, 15 insertions(+), 18 deletions(-)

diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index dde30b48c56c..04bf06560085 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -47,8 +47,8 @@ static void vmbus_setevent(struct vmbus_channel *channel)
 			(unsigned long *) vmbus_connection.send_int_page +
 			(channel->offermsg.child_relid >> 5));
 
-		monitorpage = vmbus_connection.monitor_pages;
-		monitorpage++; /* Get the child to parent monitor page */
+		/* Get the child to parent monitor page */
+		monitorpage = vmbus_connection.monitor_pages[1];
 
 		sync_set_bit(channel->monitor_bit,
 			(unsigned long *)&monitorpage->trigger_group
@@ -69,8 +69,7 @@ void vmbus_get_debug_info(struct vmbus_channel *channel,
 	u8 monitor_group = (u8)channel->offermsg.monitorid / 32;
 	u8 monitor_offset = (u8)channel->offermsg.monitorid % 32;
 
-	monitorpage = (struct hv_monitor_page *)vmbus_connection.monitor_pages;
-
+	monitorpage = vmbus_connection.monitor_pages[0];
 	debuginfo->servermonitor_pending =
 			monitorpage->trigger_group[monitor_group].pending;
 	debuginfo->servermonitor_latency =
@@ -79,8 +78,7 @@ void vmbus_get_debug_info(struct vmbus_channel *channel,
 			monitorpage->parameter[monitor_group]
 					[monitor_offset].connectionid.u.id;
 
-	monitorpage++;
-
+	monitorpage = vmbus_connection.monitor_pages[1];
 	debuginfo->clientmonitor_pending =
 			monitorpage->trigger_group[monitor_group].pending;
 	debuginfo->clientmonitor_latency =
diff --git a/drivers/hv/connection.c b/drivers/hv/connection.c
index 8f4743ab5fb2..4faea979975e 100644
--- a/drivers/hv/connection.c
+++ b/drivers/hv/connection.c
@@ -76,10 +76,8 @@ static int vmbus_negotiate_version(struct vmbus_channel_msginfo *msginfo,
 	msg->header.msgtype = CHANNELMSG_INITIATE_CONTACT;
 	msg->vmbus_version_requested = version;
 	msg->interrupt_page = virt_to_phys(vmbus_connection.int_page);
-	msg->monitor_page1 = virt_to_phys(vmbus_connection.monitor_pages);
-	msg->monitor_page2 = virt_to_phys(
-			(void *)((unsigned long)vmbus_connection.monitor_pages +
-				 PAGE_SIZE));
+	msg->monitor_page1 = virt_to_phys(vmbus_connection.monitor_pages[0]);
+	msg->monitor_page2 = virt_to_phys(vmbus_connection.monitor_pages[1]);
 
 	/*
 	 * Add to list before we send the request since we may
@@ -169,9 +167,10 @@ int vmbus_connect(void)
 	 * Setup the monitor notification facility. The 1st page for
 	 * parent->child and the 2nd page for child->parent
 	 */
-	vmbus_connection.monitor_pages =
-	(void *)__get_free_pages((GFP_KERNEL|__GFP_ZERO), 1);
-	if (vmbus_connection.monitor_pages == NULL) {
+	vmbus_connection.monitor_pages[0] = (void *)__get_free_pages((GFP_KERNEL|__GFP_ZERO), 0);
+	vmbus_connection.monitor_pages[1] = (void *)__get_free_pages((GFP_KERNEL|__GFP_ZERO), 0);
+	if ((vmbus_connection.monitor_pages[0] == NULL) ||
+	    (vmbus_connection.monitor_pages[1] == NULL)) {
 		ret = -ENOMEM;
 		goto cleanup;
 	}
@@ -229,10 +228,10 @@ cleanup:
 		vmbus_connection.int_page = NULL;
 	}
 
-	if (vmbus_connection.monitor_pages) {
-		free_pages((unsigned long)vmbus_connection.monitor_pages, 1);
-		vmbus_connection.monitor_pages = NULL;
-	}
+	free_pages((unsigned long)vmbus_connection.monitor_pages[0], 1);
+	free_pages((unsigned long)vmbus_connection.monitor_pages[1], 1);
+	vmbus_connection.monitor_pages[0] = NULL;
+	vmbus_connection.monitor_pages[1] = NULL;
 
 	kfree(msginfo);
 
diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index d84918fe19ab..d58c22ffb29a 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -612,7 +612,7 @@ struct vmbus_connection {
 	 * 2 pages - 1st page for parent->child notification and 2nd
 	 * is child->parent notification
 	 */
-	void *monitor_pages;
+	struct hv_monitor_page *monitor_pages[2];
 	struct list_head chn_msg_list;
 	spinlock_t channelmsg_lock;
 
-- 
cgit 


From 76c52bbe5e5ffc6812dcd49729c09f5a207b4a9a Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 13 Sep 2013 11:32:56 -0700
Subject: hv: move "client/server_monitor_pending" bus attributes to dev_groups

This moves the "client_monitor_pending" and "server_monitor_pending" bus
attributes to the dev_groups structure, removing the need for it to be
in a temporary structure.

Tested-by: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hv/channel.c   |  4 ----
 drivers/hv/vmbus_drv.c | 56 +++++++++++++++++++++++++++++++++++++++++---------
 include/linux/hyperv.h |  2 --
 3 files changed, 46 insertions(+), 16 deletions(-)

diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 04bf06560085..d600360ee788 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -70,8 +70,6 @@ void vmbus_get_debug_info(struct vmbus_channel *channel,
 	u8 monitor_offset = (u8)channel->offermsg.monitorid % 32;
 
 	monitorpage = vmbus_connection.monitor_pages[0];
-	debuginfo->servermonitor_pending =
-			monitorpage->trigger_group[monitor_group].pending;
 	debuginfo->servermonitor_latency =
 			monitorpage->latency[monitor_group][monitor_offset];
 	debuginfo->servermonitor_connectionid =
@@ -79,8 +77,6 @@ void vmbus_get_debug_info(struct vmbus_channel *channel,
 					[monitor_offset].connectionid.u.id;
 
 	monitorpage = vmbus_connection.monitor_pages[1];
-	debuginfo->clientmonitor_pending =
-			monitorpage->trigger_group[monitor_group].pending;
 	debuginfo->clientmonitor_latency =
 			monitorpage->latency[monitor_group][monitor_offset];
 	debuginfo->clientmonitor_connectionid =
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 944dc4b0b54d..5a44957b7064 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -47,10 +47,8 @@ static struct completion probe_event;
 static int irq;
 
 struct hv_device_info {
-	u32 server_monitor_pending;
 	u32 server_monitor_latency;
 	u32 server_monitor_conn_id;
-	u32 client_monitor_pending;
 	u32 client_monitor_latency;
 	u32 client_monitor_conn_id;
 
@@ -77,11 +75,9 @@ static void get_channel_info(struct hv_device *device,
 
 	vmbus_get_debug_info(device->channel, &debug_info);
 
-	info->server_monitor_pending = debug_info.servermonitor_pending;
 	info->server_monitor_latency = debug_info.servermonitor_latency;
 	info->server_monitor_conn_id = debug_info.servermonitor_connectionid;
 
-	info->client_monitor_pending = debug_info.clientmonitor_pending;
 	info->client_monitor_latency = debug_info.clientmonitor_latency;
 	info->client_monitor_conn_id = debug_info.clientmonitor_connectionid;
 
@@ -155,15 +151,11 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
 	} else if (!strcmp(dev_attr->attr.name, "in_write_bytes_avail")) {
 		ret = sprintf(buf, "%d\n",
 			       device_info->inbound.bytes_avail_towrite);
-	} else if (!strcmp(dev_attr->attr.name, "server_monitor_pending")) {
-		ret = sprintf(buf, "%d\n", device_info->server_monitor_pending);
 	} else if (!strcmp(dev_attr->attr.name, "server_monitor_latency")) {
 		ret = sprintf(buf, "%d\n", device_info->server_monitor_latency);
 	} else if (!strcmp(dev_attr->attr.name, "server_monitor_conn_id")) {
 		ret = sprintf(buf, "%d\n",
 			       device_info->server_monitor_conn_id);
-	} else if (!strcmp(dev_attr->attr.name, "client_monitor_pending")) {
-		ret = sprintf(buf, "%d\n", device_info->client_monitor_pending);
 	} else if (!strcmp(dev_attr->attr.name, "client_monitor_latency")) {
 		ret = sprintf(buf, "%d\n", device_info->client_monitor_latency);
 	} else if (!strcmp(dev_attr->attr.name, "client_monitor_conn_id")) {
@@ -175,6 +167,23 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
 	return ret;
 }
 
+static u8 channel_monitor_group(struct vmbus_channel *channel)
+{
+	return (u8)channel->offermsg.monitorid / 32;
+}
+
+static u8 channel_monitor_offset(struct vmbus_channel *channel)
+{
+	return (u8)channel->offermsg.monitorid % 32;
+}
+
+static u32 channel_pending(struct vmbus_channel *channel,
+			   struct hv_monitor_page *monitor_page)
+{
+	u8 monitor_group = channel_monitor_group(channel);
+	return monitor_page->trigger_group[monitor_group].pending;
+}
+
 static ssize_t id_show(struct device *dev, struct device_attribute *dev_attr,
 		       char *buf)
 {
@@ -243,6 +252,33 @@ static ssize_t modalias_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(modalias);
 
+static ssize_t server_monitor_pending_show(struct device *dev,
+					   struct device_attribute *dev_attr,
+					   char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	return sprintf(buf, "%d\n",
+		       channel_pending(hv_dev->channel,
+				       vmbus_connection.monitor_pages[1]));
+}
+static DEVICE_ATTR_RO(server_monitor_pending);
+
+static ssize_t client_monitor_pending_show(struct device *dev,
+					   struct device_attribute *dev_attr,
+					   char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	return sprintf(buf, "%d\n",
+		       channel_pending(hv_dev->channel,
+				       vmbus_connection.monitor_pages[1]));
+}
+static DEVICE_ATTR_RO(client_monitor_pending);
 
 static struct attribute *vmbus_attrs[] = {
 	&dev_attr_id.attr,
@@ -251,17 +287,17 @@ static struct attribute *vmbus_attrs[] = {
 	&dev_attr_class_id.attr,
 	&dev_attr_device_id.attr,
 	&dev_attr_modalias.attr,
+	&dev_attr_server_monitor_pending.attr,
+	&dev_attr_client_monitor_pending.attr,
 	NULL,
 };
 ATTRIBUTE_GROUPS(vmbus);
 
 /* Set up per device attributes in /sys/bus/vmbus/devices/<bus device> */
 static struct device_attribute vmbus_device_attrs[] = {
-	__ATTR(server_monitor_pending, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(server_monitor_latency, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(server_monitor_conn_id, S_IRUGO, vmbus_show_device_attr, NULL),
 
-	__ATTR(client_monitor_pending, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(client_monitor_latency, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(client_monitor_conn_id, S_IRUGO, vmbus_show_device_attr, NULL),
 
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 687c01b85037..f0a7d27ffb21 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -900,10 +900,8 @@ enum vmbus_channel_state {
 };
 
 struct vmbus_channel_debug_info {
-	u32 servermonitor_pending;
 	u32 servermonitor_latency;
 	u32 servermonitor_connectionid;
-	u32 clientmonitor_pending;
 	u32 clientmonitor_latency;
 	u32 clientmonitor_connectionid;
 
-- 
cgit 


From 1cee272b0249c5007391da6cf42903b8f30dbc5a Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 13 Sep 2013 11:32:57 -0700
Subject: hv: move "client/server_monitor_latency" bus attributes to dev_groups

This moves the "client_monitor_latency" and "server_monitor_latency" bus
attributes to the dev_groups structure, removing the need for it to be
in a temporary structure.

Tested-by: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hv/channel.c   |  4 ----
 drivers/hv/vmbus_drv.c | 48 ++++++++++++++++++++++++++++++++++++++----------
 include/linux/hyperv.h |  2 --
 3 files changed, 38 insertions(+), 16 deletions(-)

diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index d600360ee788..ff61464f57ca 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -70,15 +70,11 @@ void vmbus_get_debug_info(struct vmbus_channel *channel,
 	u8 monitor_offset = (u8)channel->offermsg.monitorid % 32;
 
 	monitorpage = vmbus_connection.monitor_pages[0];
-	debuginfo->servermonitor_latency =
-			monitorpage->latency[monitor_group][monitor_offset];
 	debuginfo->servermonitor_connectionid =
 			monitorpage->parameter[monitor_group]
 					[monitor_offset].connectionid.u.id;
 
 	monitorpage = vmbus_connection.monitor_pages[1];
-	debuginfo->clientmonitor_latency =
-			monitorpage->latency[monitor_group][monitor_offset];
 	debuginfo->clientmonitor_connectionid =
 			monitorpage->parameter[monitor_group]
 					[monitor_offset].connectionid.u.id;
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 5a44957b7064..461b989835b6 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -47,9 +47,7 @@ static struct completion probe_event;
 static int irq;
 
 struct hv_device_info {
-	u32 server_monitor_latency;
 	u32 server_monitor_conn_id;
-	u32 client_monitor_latency;
 	u32 client_monitor_conn_id;
 
 	struct hv_dev_port_info inbound;
@@ -75,10 +73,8 @@ static void get_channel_info(struct hv_device *device,
 
 	vmbus_get_debug_info(device->channel, &debug_info);
 
-	info->server_monitor_latency = debug_info.servermonitor_latency;
 	info->server_monitor_conn_id = debug_info.servermonitor_connectionid;
 
-	info->client_monitor_latency = debug_info.clientmonitor_latency;
 	info->client_monitor_conn_id = debug_info.clientmonitor_connectionid;
 
 	info->inbound.int_mask = debug_info.inbound.current_interrupt_mask;
@@ -151,13 +147,9 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
 	} else if (!strcmp(dev_attr->attr.name, "in_write_bytes_avail")) {
 		ret = sprintf(buf, "%d\n",
 			       device_info->inbound.bytes_avail_towrite);
-	} else if (!strcmp(dev_attr->attr.name, "server_monitor_latency")) {
-		ret = sprintf(buf, "%d\n", device_info->server_monitor_latency);
 	} else if (!strcmp(dev_attr->attr.name, "server_monitor_conn_id")) {
 		ret = sprintf(buf, "%d\n",
 			       device_info->server_monitor_conn_id);
-	} else if (!strcmp(dev_attr->attr.name, "client_monitor_latency")) {
-		ret = sprintf(buf, "%d\n", device_info->client_monitor_latency);
 	} else if (!strcmp(dev_attr->attr.name, "client_monitor_conn_id")) {
 		ret = sprintf(buf, "%d\n",
 			       device_info->client_monitor_conn_id);
@@ -184,6 +176,14 @@ static u32 channel_pending(struct vmbus_channel *channel,
 	return monitor_page->trigger_group[monitor_group].pending;
 }
 
+static u32 channel_latency(struct vmbus_channel *channel,
+			   struct hv_monitor_page *monitor_page)
+{
+	u8 monitor_group = channel_monitor_group(channel);
+	u8 monitor_offset = channel_monitor_offset(channel);
+	return monitor_page->latency[monitor_group][monitor_offset];
+}
+
 static ssize_t id_show(struct device *dev, struct device_attribute *dev_attr,
 		       char *buf)
 {
@@ -280,6 +280,34 @@ static ssize_t client_monitor_pending_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(client_monitor_pending);
 
+static ssize_t server_monitor_latency_show(struct device *dev,
+					   struct device_attribute *dev_attr,
+					   char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	return sprintf(buf, "%d\n",
+		       channel_latency(hv_dev->channel,
+				       vmbus_connection.monitor_pages[0]));
+}
+static DEVICE_ATTR_RO(server_monitor_latency);
+
+static ssize_t client_monitor_latency_show(struct device *dev,
+					   struct device_attribute *dev_attr,
+					   char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	return sprintf(buf, "%d\n",
+		       channel_latency(hv_dev->channel,
+				       vmbus_connection.monitor_pages[1]));
+}
+static DEVICE_ATTR_RO(client_monitor_latency);
+
 static struct attribute *vmbus_attrs[] = {
 	&dev_attr_id.attr,
 	&dev_attr_state.attr,
@@ -289,16 +317,16 @@ static struct attribute *vmbus_attrs[] = {
 	&dev_attr_modalias.attr,
 	&dev_attr_server_monitor_pending.attr,
 	&dev_attr_client_monitor_pending.attr,
+	&dev_attr_server_monitor_latency.attr,
+	&dev_attr_client_monitor_latency.attr,
 	NULL,
 };
 ATTRIBUTE_GROUPS(vmbus);
 
 /* Set up per device attributes in /sys/bus/vmbus/devices/<bus device> */
 static struct device_attribute vmbus_device_attrs[] = {
-	__ATTR(server_monitor_latency, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(server_monitor_conn_id, S_IRUGO, vmbus_show_device_attr, NULL),
 
-	__ATTR(client_monitor_latency, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(client_monitor_conn_id, S_IRUGO, vmbus_show_device_attr, NULL),
 
 	__ATTR(out_intr_mask, S_IRUGO, vmbus_show_device_attr, NULL),
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index f0a7d27ffb21..ec1e5033bb99 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -900,9 +900,7 @@ enum vmbus_channel_state {
 };
 
 struct vmbus_channel_debug_info {
-	u32 servermonitor_latency;
 	u32 servermonitor_connectionid;
-	u32 clientmonitor_latency;
 	u32 clientmonitor_connectionid;
 
 	struct hv_ring_buffer_debug_info inbound;
-- 
cgit 


From 4947c7453b184bc33a0056cf95af61c3cad11ef6 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 13 Sep 2013 11:32:58 -0700
Subject: hv: move "client/server_monitor_conn_id" bus attributes to dev_groups

This moves the "client_monitor_conn_id" and "server_monitor_conn_id" bus
attributes to the dev_groups structure, removing the need for it to be
in a temporary structure.

Tested-by: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hv/channel.c   | 14 -------------
 drivers/hv/vmbus_drv.c | 55 ++++++++++++++++++++++++++++++++++----------------
 include/linux/hyperv.h |  3 ---
 3 files changed, 38 insertions(+), 34 deletions(-)

diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index ff61464f57ca..75c26da3e011 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -65,20 +65,6 @@ static void vmbus_setevent(struct vmbus_channel *channel)
 void vmbus_get_debug_info(struct vmbus_channel *channel,
 			      struct vmbus_channel_debug_info *debuginfo)
 {
-	struct hv_monitor_page *monitorpage;
-	u8 monitor_group = (u8)channel->offermsg.monitorid / 32;
-	u8 monitor_offset = (u8)channel->offermsg.monitorid % 32;
-
-	monitorpage = vmbus_connection.monitor_pages[0];
-	debuginfo->servermonitor_connectionid =
-			monitorpage->parameter[monitor_group]
-					[monitor_offset].connectionid.u.id;
-
-	monitorpage = vmbus_connection.monitor_pages[1];
-	debuginfo->clientmonitor_connectionid =
-			monitorpage->parameter[monitor_group]
-					[monitor_offset].connectionid.u.id;
-
 	hv_ringbuffer_get_debuginfo(&channel->inbound, &debuginfo->inbound);
 	hv_ringbuffer_get_debuginfo(&channel->outbound, &debuginfo->outbound);
 }
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 461b989835b6..73cb456e256b 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -47,9 +47,6 @@ static struct completion probe_event;
 static int irq;
 
 struct hv_device_info {
-	u32 server_monitor_conn_id;
-	u32 client_monitor_conn_id;
-
 	struct hv_dev_port_info inbound;
 	struct hv_dev_port_info outbound;
 };
@@ -73,10 +70,6 @@ static void get_channel_info(struct hv_device *device,
 
 	vmbus_get_debug_info(device->channel, &debug_info);
 
-	info->server_monitor_conn_id = debug_info.servermonitor_connectionid;
-
-	info->client_monitor_conn_id = debug_info.clientmonitor_connectionid;
-
 	info->inbound.int_mask = debug_info.inbound.current_interrupt_mask;
 	info->inbound.read_idx = debug_info.inbound.current_read_index;
 	info->inbound.write_idx = debug_info.inbound.current_write_index;
@@ -147,12 +140,6 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
 	} else if (!strcmp(dev_attr->attr.name, "in_write_bytes_avail")) {
 		ret = sprintf(buf, "%d\n",
 			       device_info->inbound.bytes_avail_towrite);
-	} else if (!strcmp(dev_attr->attr.name, "server_monitor_conn_id")) {
-		ret = sprintf(buf, "%d\n",
-			       device_info->server_monitor_conn_id);
-	} else if (!strcmp(dev_attr->attr.name, "client_monitor_conn_id")) {
-		ret = sprintf(buf, "%d\n",
-			       device_info->client_monitor_conn_id);
 	}
 
 	kfree(device_info);
@@ -184,6 +171,14 @@ static u32 channel_latency(struct vmbus_channel *channel,
 	return monitor_page->latency[monitor_group][monitor_offset];
 }
 
+static u32 channel_conn_id(struct vmbus_channel *channel,
+			   struct hv_monitor_page *monitor_page)
+{
+	u8 monitor_group = channel_monitor_group(channel);
+	u8 monitor_offset = channel_monitor_offset(channel);
+	return monitor_page->parameter[monitor_group][monitor_offset].connectionid.u.id;
+}
+
 static ssize_t id_show(struct device *dev, struct device_attribute *dev_attr,
 		       char *buf)
 {
@@ -308,6 +303,34 @@ static ssize_t client_monitor_latency_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(client_monitor_latency);
 
+static ssize_t server_monitor_conn_id_show(struct device *dev,
+					   struct device_attribute *dev_attr,
+					   char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	return sprintf(buf, "%d\n",
+		       channel_conn_id(hv_dev->channel,
+				       vmbus_connection.monitor_pages[0]));
+}
+static DEVICE_ATTR_RO(server_monitor_conn_id);
+
+static ssize_t client_monitor_conn_id_show(struct device *dev,
+					   struct device_attribute *dev_attr,
+					   char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	return sprintf(buf, "%d\n",
+		       channel_conn_id(hv_dev->channel,
+				       vmbus_connection.monitor_pages[1]));
+}
+static DEVICE_ATTR_RO(client_monitor_conn_id);
+
 static struct attribute *vmbus_attrs[] = {
 	&dev_attr_id.attr,
 	&dev_attr_state.attr,
@@ -319,16 +342,14 @@ static struct attribute *vmbus_attrs[] = {
 	&dev_attr_client_monitor_pending.attr,
 	&dev_attr_server_monitor_latency.attr,
 	&dev_attr_client_monitor_latency.attr,
+	&dev_attr_server_monitor_conn_id.attr,
+	&dev_attr_client_monitor_conn_id.attr,
 	NULL,
 };
 ATTRIBUTE_GROUPS(vmbus);
 
 /* Set up per device attributes in /sys/bus/vmbus/devices/<bus device> */
 static struct device_attribute vmbus_device_attrs[] = {
-	__ATTR(server_monitor_conn_id, S_IRUGO, vmbus_show_device_attr, NULL),
-
-	__ATTR(client_monitor_conn_id, S_IRUGO, vmbus_show_device_attr, NULL),
-
 	__ATTR(out_intr_mask, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(out_read_index, S_IRUGO, vmbus_show_device_attr, NULL),
 	__ATTR(out_write_index, S_IRUGO, vmbus_show_device_attr, NULL),
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index ec1e5033bb99..332e80ce9b8a 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -900,9 +900,6 @@ enum vmbus_channel_state {
 };
 
 struct vmbus_channel_debug_info {
-	u32 servermonitor_connectionid;
-	u32 clientmonitor_connectionid;
-
 	struct hv_ring_buffer_debug_info inbound;
 	struct hv_ring_buffer_debug_info outbound;
 };
-- 
cgit 


From 2c9be3eacc39948af2341595322c014833699ac5 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 13 Sep 2013 11:32:59 -0700
Subject: hv: delete vmbus_get_debug_info()

It's only used once, only contains 2 function calls, so just make those
calls directly, deleting the function, and the now unneeded structure
entirely.

Tested-by: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hv/channel.c   | 10 ----------
 drivers/hv/vmbus_drv.c | 35 ++++++++++++++++-------------------
 include/linux/hyperv.h |  8 --------
 3 files changed, 16 insertions(+), 37 deletions(-)

diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 75c26da3e011..94d54591b226 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -59,16 +59,6 @@ static void vmbus_setevent(struct vmbus_channel *channel)
 	}
 }
 
-/*
- * vmbus_get_debug_info -Retrieve various channel debug info
- */
-void vmbus_get_debug_info(struct vmbus_channel *channel,
-			      struct vmbus_channel_debug_info *debuginfo)
-{
-	hv_ringbuffer_get_debuginfo(&channel->inbound, &debuginfo->inbound);
-	hv_ringbuffer_get_debuginfo(&channel->outbound, &debuginfo->outbound);
-}
-
 /*
  * vmbus_open - Open the specified channel.
  */
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 73cb456e256b..62d9311b0541 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -63,29 +63,26 @@ static int vmbus_exists(void)
 static void get_channel_info(struct hv_device *device,
 			     struct hv_device_info *info)
 {
-	struct vmbus_channel_debug_info debug_info;
+	struct hv_ring_buffer_debug_info inbound;
+	struct hv_ring_buffer_debug_info outbound;
 
 	if (!device->channel)
 		return;
 
-	vmbus_get_debug_info(device->channel, &debug_info);
-
-	info->inbound.int_mask = debug_info.inbound.current_interrupt_mask;
-	info->inbound.read_idx = debug_info.inbound.current_read_index;
-	info->inbound.write_idx = debug_info.inbound.current_write_index;
-	info->inbound.bytes_avail_toread =
-		debug_info.inbound.bytes_avail_toread;
-	info->inbound.bytes_avail_towrite =
-		debug_info.inbound.bytes_avail_towrite;
-
-	info->outbound.int_mask =
-		debug_info.outbound.current_interrupt_mask;
-	info->outbound.read_idx = debug_info.outbound.current_read_index;
-	info->outbound.write_idx = debug_info.outbound.current_write_index;
-	info->outbound.bytes_avail_toread =
-		debug_info.outbound.bytes_avail_toread;
-	info->outbound.bytes_avail_towrite =
-		debug_info.outbound.bytes_avail_towrite;
+	hv_ringbuffer_get_debuginfo(&device->channel->inbound, &inbound);
+	hv_ringbuffer_get_debuginfo(&device->channel->outbound, &outbound);
+
+	info->inbound.int_mask = inbound.current_interrupt_mask;
+	info->inbound.read_idx = inbound.current_read_index;
+	info->inbound.write_idx = inbound.current_write_index;
+	info->inbound.bytes_avail_toread = inbound.bytes_avail_toread;
+	info->inbound.bytes_avail_towrite = inbound.bytes_avail_towrite;
+
+	info->outbound.int_mask = outbound.current_interrupt_mask;
+	info->outbound.read_idx = outbound.current_read_index;
+	info->outbound.write_idx = outbound.current_write_index;
+	info->outbound.bytes_avail_toread = outbound.bytes_avail_toread;
+	info->outbound.bytes_avail_towrite = outbound.bytes_avail_towrite;
 }
 
 #define VMBUS_ALIAS_LEN ((sizeof((struct hv_vmbus_device_id *)0)->guid) * 2)
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 332e80ce9b8a..c0e8faf40b35 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -899,11 +899,6 @@ enum vmbus_channel_state {
 	CHANNEL_OPENED_STATE,
 };
 
-struct vmbus_channel_debug_info {
-	struct hv_ring_buffer_debug_info inbound;
-	struct hv_ring_buffer_debug_info outbound;
-};
-
 /*
  * Represents each channel msg on the vmbus connection This is a
  * variable-size data structure depending on the msg type itself
@@ -1169,9 +1164,6 @@ extern int vmbus_recvpacket_raw(struct vmbus_channel *channel,
 				     u64 *requestid);
 
 
-extern void vmbus_get_debug_info(struct vmbus_channel *channel,
-				     struct vmbus_channel_debug_info *debug);
-
 extern void vmbus_ontimer(unsigned long data);
 
 struct hv_dev_port_info {
-- 
cgit 


From 1fdde16d1f93376ad2a2df769f756572c2e84cbd Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 13 Sep 2013 11:33:00 -0700
Subject: hv: delete struct hv_dev_port_info

It's no longer needed, and the struct hv_ring_buffer_debug_info
structure shouldn't be "global" so move it to the local .h file instead.

Tested-by: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hv/hyperv_vmbus.h |  7 +++++++
 drivers/hv/vmbus_drv.c    | 35 ++++++++++-------------------------
 include/linux/hyperv.h    | 17 -----------------
 3 files changed, 17 insertions(+), 42 deletions(-)

diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
index d58c22ffb29a..e05517616a06 100644
--- a/drivers/hv/hyperv_vmbus.h
+++ b/drivers/hv/hyperv_vmbus.h
@@ -514,6 +514,13 @@ struct hv_context {
 
 extern struct hv_context hv_context;
 
+struct hv_ring_buffer_debug_info {
+	u32 current_interrupt_mask;
+	u32 current_read_index;
+	u32 current_write_index;
+	u32 bytes_avail_toread;
+	u32 bytes_avail_towrite;
+};
 
 /* Hv Interface */
 
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 62d9311b0541..cf3220e8a3a6 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -47,8 +47,8 @@ static struct completion probe_event;
 static int irq;
 
 struct hv_device_info {
-	struct hv_dev_port_info inbound;
-	struct hv_dev_port_info outbound;
+	struct hv_ring_buffer_debug_info inbound;
+	struct hv_ring_buffer_debug_info outbound;
 };
 
 static int vmbus_exists(void)
@@ -63,26 +63,11 @@ static int vmbus_exists(void)
 static void get_channel_info(struct hv_device *device,
 			     struct hv_device_info *info)
 {
-	struct hv_ring_buffer_debug_info inbound;
-	struct hv_ring_buffer_debug_info outbound;
-
 	if (!device->channel)
 		return;
 
-	hv_ringbuffer_get_debuginfo(&device->channel->inbound, &inbound);
-	hv_ringbuffer_get_debuginfo(&device->channel->outbound, &outbound);
-
-	info->inbound.int_mask = inbound.current_interrupt_mask;
-	info->inbound.read_idx = inbound.current_read_index;
-	info->inbound.write_idx = inbound.current_write_index;
-	info->inbound.bytes_avail_toread = inbound.bytes_avail_toread;
-	info->inbound.bytes_avail_towrite = inbound.bytes_avail_towrite;
-
-	info->outbound.int_mask = outbound.current_interrupt_mask;
-	info->outbound.read_idx = outbound.current_read_index;
-	info->outbound.write_idx = outbound.current_write_index;
-	info->outbound.bytes_avail_toread = outbound.bytes_avail_toread;
-	info->outbound.bytes_avail_towrite = outbound.bytes_avail_towrite;
+	hv_ringbuffer_get_debuginfo(&device->channel->inbound, &info->inbound);
+	hv_ringbuffer_get_debuginfo(&device->channel->outbound, &info->outbound);
 }
 
 #define VMBUS_ALIAS_LEN ((sizeof((struct hv_vmbus_device_id *)0)->guid) * 2)
@@ -114,11 +99,11 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
 	get_channel_info(hv_dev, device_info);
 
 	if (!strcmp(dev_attr->attr.name, "out_intr_mask")) {
-		ret = sprintf(buf, "%d\n", device_info->outbound.int_mask);
+		ret = sprintf(buf, "%d\n", device_info->outbound.current_interrupt_mask);
 	} else if (!strcmp(dev_attr->attr.name, "out_read_index")) {
-		ret = sprintf(buf, "%d\n", device_info->outbound.read_idx);
+		ret = sprintf(buf, "%d\n", device_info->outbound.current_read_index);
 	} else if (!strcmp(dev_attr->attr.name, "out_write_index")) {
-		ret = sprintf(buf, "%d\n", device_info->outbound.write_idx);
+		ret = sprintf(buf, "%d\n", device_info->outbound.current_write_index);
 	} else if (!strcmp(dev_attr->attr.name, "out_read_bytes_avail")) {
 		ret = sprintf(buf, "%d\n",
 			       device_info->outbound.bytes_avail_toread);
@@ -126,11 +111,11 @@ static ssize_t vmbus_show_device_attr(struct device *dev,
 		ret = sprintf(buf, "%d\n",
 			       device_info->outbound.bytes_avail_towrite);
 	} else if (!strcmp(dev_attr->attr.name, "in_intr_mask")) {
-		ret = sprintf(buf, "%d\n", device_info->inbound.int_mask);
+		ret = sprintf(buf, "%d\n", device_info->inbound.current_interrupt_mask);
 	} else if (!strcmp(dev_attr->attr.name, "in_read_index")) {
-		ret = sprintf(buf, "%d\n", device_info->inbound.read_idx);
+		ret = sprintf(buf, "%d\n", device_info->inbound.current_read_index);
 	} else if (!strcmp(dev_attr->attr.name, "in_write_index")) {
-		ret = sprintf(buf, "%d\n", device_info->inbound.write_idx);
+		ret = sprintf(buf, "%d\n", device_info->inbound.current_write_index);
 	} else if (!strcmp(dev_attr->attr.name, "in_read_bytes_avail")) {
 		ret = sprintf(buf, "%d\n",
 			       device_info->inbound.bytes_avail_toread);
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index c0e8faf40b35..c68ecfe29441 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -429,15 +429,6 @@ struct hv_ring_buffer_info {
 	u32 ring_data_startoffset;
 };
 
-struct hv_ring_buffer_debug_info {
-	u32 current_interrupt_mask;
-	u32 current_read_index;
-	u32 current_write_index;
-	u32 bytes_avail_toread;
-	u32 bytes_avail_towrite;
-};
-
-
 /*
  *
  * hv_get_ringbuffer_availbytes()
@@ -1166,14 +1157,6 @@ extern int vmbus_recvpacket_raw(struct vmbus_channel *channel,
 
 extern void vmbus_ontimer(unsigned long data);
 
-struct hv_dev_port_info {
-	u32 int_mask;
-	u32 read_idx;
-	u32 write_idx;
-	u32 bytes_avail_toread;
-	u32 bytes_avail_towrite;
-};
-
 /* Base driver object */
 struct hv_driver {
 	const char *name;
-- 
cgit 


From 98f4c651762c3b4f4dd300504563075c2b726a89 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 13 Sep 2013 11:33:01 -0700
Subject: hv: move ringbuffer bus attributes to dev_groups

This moves the ringbuffer bus attributes to the dev_groups structure,
deletes the now unneeded struct hv_device_info, and removes some now
unused functions, and variables as everything is now moved to the
dev_groups structure, dev_attrs is no longer needed.

Tested-by: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hv/vmbus_drv.c | 230 +++++++++++++++++++++++++++++++------------------
 1 file changed, 146 insertions(+), 84 deletions(-)

diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index cf3220e8a3a6..48aad4faea06 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -46,11 +46,6 @@ static struct tasklet_struct msg_dpc;
 static struct completion probe_event;
 static int irq;
 
-struct hv_device_info {
-	struct hv_ring_buffer_debug_info inbound;
-	struct hv_ring_buffer_debug_info outbound;
-};
-
 static int vmbus_exists(void)
 {
 	if (hv_acpi_dev == NULL)
@@ -59,17 +54,6 @@ static int vmbus_exists(void)
 	return 0;
 }
 
-
-static void get_channel_info(struct hv_device *device,
-			     struct hv_device_info *info)
-{
-	if (!device->channel)
-		return;
-
-	hv_ringbuffer_get_debuginfo(&device->channel->inbound, &info->inbound);
-	hv_ringbuffer_get_debuginfo(&device->channel->outbound, &info->outbound);
-}
-
 #define VMBUS_ALIAS_LEN ((sizeof((struct hv_vmbus_device_id *)0)->guid) * 2)
 static void print_alias_name(struct hv_device *hv_dev, char *alias_name)
 {
@@ -78,56 +62,6 @@ static void print_alias_name(struct hv_device *hv_dev, char *alias_name)
 		sprintf(&alias_name[i], "%02x", hv_dev->dev_type.b[i/2]);
 }
 
-/*
- * vmbus_show_device_attr - Show the device attribute in sysfs.
- *
- * This is invoked when user does a
- * "cat /sys/bus/vmbus/devices/<busdevice>/<attr name>"
- */
-static ssize_t vmbus_show_device_attr(struct device *dev,
-				      struct device_attribute *dev_attr,
-				      char *buf)
-{
-	struct hv_device *hv_dev = device_to_hv_device(dev);
-	struct hv_device_info *device_info;
-	int ret = 0;
-
-	device_info = kzalloc(sizeof(struct hv_device_info), GFP_KERNEL);
-	if (!device_info)
-		return ret;
-
-	get_channel_info(hv_dev, device_info);
-
-	if (!strcmp(dev_attr->attr.name, "out_intr_mask")) {
-		ret = sprintf(buf, "%d\n", device_info->outbound.current_interrupt_mask);
-	} else if (!strcmp(dev_attr->attr.name, "out_read_index")) {
-		ret = sprintf(buf, "%d\n", device_info->outbound.current_read_index);
-	} else if (!strcmp(dev_attr->attr.name, "out_write_index")) {
-		ret = sprintf(buf, "%d\n", device_info->outbound.current_write_index);
-	} else if (!strcmp(dev_attr->attr.name, "out_read_bytes_avail")) {
-		ret = sprintf(buf, "%d\n",
-			       device_info->outbound.bytes_avail_toread);
-	} else if (!strcmp(dev_attr->attr.name, "out_write_bytes_avail")) {
-		ret = sprintf(buf, "%d\n",
-			       device_info->outbound.bytes_avail_towrite);
-	} else if (!strcmp(dev_attr->attr.name, "in_intr_mask")) {
-		ret = sprintf(buf, "%d\n", device_info->inbound.current_interrupt_mask);
-	} else if (!strcmp(dev_attr->attr.name, "in_read_index")) {
-		ret = sprintf(buf, "%d\n", device_info->inbound.current_read_index);
-	} else if (!strcmp(dev_attr->attr.name, "in_write_index")) {
-		ret = sprintf(buf, "%d\n", device_info->inbound.current_write_index);
-	} else if (!strcmp(dev_attr->attr.name, "in_read_bytes_avail")) {
-		ret = sprintf(buf, "%d\n",
-			       device_info->inbound.bytes_avail_toread);
-	} else if (!strcmp(dev_attr->attr.name, "in_write_bytes_avail")) {
-		ret = sprintf(buf, "%d\n",
-			       device_info->inbound.bytes_avail_towrite);
-	}
-
-	kfree(device_info);
-	return ret;
-}
-
 static u8 channel_monitor_group(struct vmbus_channel *channel)
 {
 	return (u8)channel->offermsg.monitorid / 32;
@@ -313,6 +247,142 @@ static ssize_t client_monitor_conn_id_show(struct device *dev,
 }
 static DEVICE_ATTR_RO(client_monitor_conn_id);
 
+static ssize_t out_intr_mask_show(struct device *dev,
+				  struct device_attribute *dev_attr, char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+	struct hv_ring_buffer_debug_info outbound;
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
+	return sprintf(buf, "%d\n", outbound.current_interrupt_mask);
+}
+static DEVICE_ATTR_RO(out_intr_mask);
+
+static ssize_t out_read_index_show(struct device *dev,
+				   struct device_attribute *dev_attr, char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+	struct hv_ring_buffer_debug_info outbound;
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
+	return sprintf(buf, "%d\n", outbound.current_read_index);
+}
+static DEVICE_ATTR_RO(out_read_index);
+
+static ssize_t out_write_index_show(struct device *dev,
+				    struct device_attribute *dev_attr,
+				    char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+	struct hv_ring_buffer_debug_info outbound;
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
+	return sprintf(buf, "%d\n", outbound.current_write_index);
+}
+static DEVICE_ATTR_RO(out_write_index);
+
+static ssize_t out_read_bytes_avail_show(struct device *dev,
+					 struct device_attribute *dev_attr,
+					 char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+	struct hv_ring_buffer_debug_info outbound;
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
+	return sprintf(buf, "%d\n", outbound.bytes_avail_toread);
+}
+static DEVICE_ATTR_RO(out_read_bytes_avail);
+
+static ssize_t out_write_bytes_avail_show(struct device *dev,
+					  struct device_attribute *dev_attr,
+					  char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+	struct hv_ring_buffer_debug_info outbound;
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	hv_ringbuffer_get_debuginfo(&hv_dev->channel->outbound, &outbound);
+	return sprintf(buf, "%d\n", outbound.bytes_avail_towrite);
+}
+static DEVICE_ATTR_RO(out_write_bytes_avail);
+
+static ssize_t in_intr_mask_show(struct device *dev,
+				 struct device_attribute *dev_attr, char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+	struct hv_ring_buffer_debug_info inbound;
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
+	return sprintf(buf, "%d\n", inbound.current_interrupt_mask);
+}
+static DEVICE_ATTR_RO(in_intr_mask);
+
+static ssize_t in_read_index_show(struct device *dev,
+				  struct device_attribute *dev_attr, char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+	struct hv_ring_buffer_debug_info inbound;
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
+	return sprintf(buf, "%d\n", inbound.current_read_index);
+}
+static DEVICE_ATTR_RO(in_read_index);
+
+static ssize_t in_write_index_show(struct device *dev,
+				   struct device_attribute *dev_attr, char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+	struct hv_ring_buffer_debug_info inbound;
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
+	return sprintf(buf, "%d\n", inbound.current_write_index);
+}
+static DEVICE_ATTR_RO(in_write_index);
+
+static ssize_t in_read_bytes_avail_show(struct device *dev,
+					struct device_attribute *dev_attr,
+					char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+	struct hv_ring_buffer_debug_info inbound;
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
+	return sprintf(buf, "%d\n", inbound.bytes_avail_toread);
+}
+static DEVICE_ATTR_RO(in_read_bytes_avail);
+
+static ssize_t in_write_bytes_avail_show(struct device *dev,
+					 struct device_attribute *dev_attr,
+					 char *buf)
+{
+	struct hv_device *hv_dev = device_to_hv_device(dev);
+	struct hv_ring_buffer_debug_info inbound;
+
+	if (!hv_dev->channel)
+		return -ENODEV;
+	hv_ringbuffer_get_debuginfo(&hv_dev->channel->inbound, &inbound);
+	return sprintf(buf, "%d\n", inbound.bytes_avail_towrite);
+}
+static DEVICE_ATTR_RO(in_write_bytes_avail);
+
+/* Set up per device attributes in /sys/bus/vmbus/devices/<bus device> */
 static struct attribute *vmbus_attrs[] = {
 	&dev_attr_id.attr,
 	&dev_attr_state.attr,
@@ -326,27 +396,20 @@ static struct attribute *vmbus_attrs[] = {
 	&dev_attr_client_monitor_latency.attr,
 	&dev_attr_server_monitor_conn_id.attr,
 	&dev_attr_client_monitor_conn_id.attr,
+	&dev_attr_out_intr_mask.attr,
+	&dev_attr_out_read_index.attr,
+	&dev_attr_out_write_index.attr,
+	&dev_attr_out_read_bytes_avail.attr,
+	&dev_attr_out_write_bytes_avail.attr,
+	&dev_attr_in_intr_mask.attr,
+	&dev_attr_in_read_index.attr,
+	&dev_attr_in_write_index.attr,
+	&dev_attr_in_read_bytes_avail.attr,
+	&dev_attr_in_write_bytes_avail.attr,
 	NULL,
 };
 ATTRIBUTE_GROUPS(vmbus);
 
-/* Set up per device attributes in /sys/bus/vmbus/devices/<bus device> */
-static struct device_attribute vmbus_device_attrs[] = {
-	__ATTR(out_intr_mask, S_IRUGO, vmbus_show_device_attr, NULL),
-	__ATTR(out_read_index, S_IRUGO, vmbus_show_device_attr, NULL),
-	__ATTR(out_write_index, S_IRUGO, vmbus_show_device_attr, NULL),
-	__ATTR(out_read_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL),
-	__ATTR(out_write_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL),
-
-	__ATTR(in_intr_mask, S_IRUGO, vmbus_show_device_attr, NULL),
-	__ATTR(in_read_index, S_IRUGO, vmbus_show_device_attr, NULL),
-	__ATTR(in_write_index, S_IRUGO, vmbus_show_device_attr, NULL),
-	__ATTR(in_read_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL),
-	__ATTR(in_write_bytes_avail, S_IRUGO, vmbus_show_device_attr, NULL),
-	__ATTR_NULL
-};
-
-
 /*
  * vmbus_uevent - add uevent for our device
  *
@@ -494,7 +557,6 @@ static struct bus_type  hv_bus = {
 	.remove =		vmbus_remove,
 	.probe =		vmbus_probe,
 	.uevent =		vmbus_uevent,
-	.dev_attrs =	vmbus_device_attrs,
 	.dev_groups =		vmbus_groups,
 };
 
-- 
cgit 


From f464a1d00e42b325f70fa33e4e036032fdc62499 Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Sun, 22 Sep 2013 21:51:46 +0200
Subject: drivers: misc: ti_dac7512: drop module version

Providing a module version doesn't add any value, so drop it.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/ti_dac7512.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/misc/ti_dac7512.c b/drivers/misc/ti_dac7512.c
index 9b237221bc4e..db47333184b7 100644
--- a/drivers/misc/ti_dac7512.c
+++ b/drivers/misc/ti_dac7512.c
@@ -24,7 +24,6 @@
 #include <linux/spi/spi.h>
 
 #define DAC7512_DRV_NAME	"dac7512"
-#define DRIVER_VERSION		"1.0"
 
 static ssize_t dac7512_store_val(struct device *dev,
 				 struct device_attribute *attr,
@@ -89,4 +88,3 @@ module_spi_driver(dac7512_driver);
 MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
 MODULE_DESCRIPTION("DAC7512 16-bit DAC");
 MODULE_LICENSE("GPL v2");
-MODULE_VERSION(DRIVER_VERSION);
-- 
cgit 


From e06465050e2a62ccab164d116e443101279c14bb Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Sun, 22 Sep 2013 21:51:47 +0200
Subject: drivers: misc: ti_dac7512: drop DAC7512_DRV_NAME

The driver's name can be provided directly, so drop the #define.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/ti_dac7512.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/misc/ti_dac7512.c b/drivers/misc/ti_dac7512.c
index db47333184b7..46dfbf36bbea 100644
--- a/drivers/misc/ti_dac7512.c
+++ b/drivers/misc/ti_dac7512.c
@@ -23,8 +23,6 @@
 #include <linux/init.h>
 #include <linux/spi/spi.h>
 
-#define DAC7512_DRV_NAME	"dac7512"
-
 static ssize_t dac7512_store_val(struct device *dev,
 				 struct device_attribute *attr,
 				 const char *buf, size_t count)
@@ -76,7 +74,7 @@ static int dac7512_remove(struct spi_device *spi)
 
 static struct spi_driver dac7512_driver = {
 	.driver = {
-		.name	= DAC7512_DRV_NAME,
+		.name	= "dac7512",
 		.owner	= THIS_MODULE,
 	},
 	.probe	= dac7512_probe,
-- 
cgit 


From beb900fc2428fa812e4a49251ef8396fa46b77fc Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Sun, 22 Sep 2013 21:51:48 +0200
Subject: drivers: misc: ti_dac7512: provide a SPI ID table

This way, the module can be autoloaded by the SPI core.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/ti_dac7512.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/misc/ti_dac7512.c b/drivers/misc/ti_dac7512.c
index 46dfbf36bbea..6393a68122ae 100644
--- a/drivers/misc/ti_dac7512.c
+++ b/drivers/misc/ti_dac7512.c
@@ -72,6 +72,12 @@ static int dac7512_remove(struct spi_device *spi)
 	return 0;
 }
 
+static const struct spi_device_id dac7512_id_table[] = {
+	{ "dac7512", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(spi, dac7512_id_table);
+
 static struct spi_driver dac7512_driver = {
 	.driver = {
 		.name	= "dac7512",
@@ -79,6 +85,7 @@ static struct spi_driver dac7512_driver = {
 	},
 	.probe	= dac7512_probe,
 	.remove	= dac7512_remove,
+	.id_table = dac7512_id_table,
 };
 
 module_spi_driver(dac7512_driver);
-- 
cgit 


From f91f9258f61f024d34b7c001f989acf8ee39378a Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Sun, 22 Sep 2013 21:51:49 +0200
Subject: drivers: misc: ti_dac7512: add support for DT matching

Only matching is done via DT, no other details can be passed.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../devicetree/bindings/misc/ti,dac7512.txt          | 20 ++++++++++++++++++++
 drivers/misc/ti_dac7512.c                            | 10 ++++++++++
 2 files changed, 30 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/misc/ti,dac7512.txt

diff --git a/Documentation/devicetree/bindings/misc/ti,dac7512.txt b/Documentation/devicetree/bindings/misc/ti,dac7512.txt
new file mode 100644
index 000000000000..1db45939dac9
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/ti,dac7512.txt
@@ -0,0 +1,20 @@
+TI DAC7512 DEVICETREE BINDINGS
+
+Required properties:
+
+	- "compatible"		Must be set to "ti,dac7512"
+
+Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt
+apply. In particular, "reg" and "spi-max-frequency" properties must be given.
+
+
+Example:
+
+	spi_master {
+		dac7512: dac7512@0 {
+			compatible = "ti,dac7512";
+			reg = <0>; /* CS0 */
+			spi-max-frequency = <1000000>;
+		};
+	};
+
diff --git a/drivers/misc/ti_dac7512.c b/drivers/misc/ti_dac7512.c
index 6393a68122ae..83da711ce9f1 100644
--- a/drivers/misc/ti_dac7512.c
+++ b/drivers/misc/ti_dac7512.c
@@ -22,6 +22,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/spi/spi.h>
+#include <linux/of.h>
 
 static ssize_t dac7512_store_val(struct device *dev,
 				 struct device_attribute *attr,
@@ -78,10 +79,19 @@ static const struct spi_device_id dac7512_id_table[] = {
 };
 MODULE_DEVICE_TABLE(spi, dac7512_id_table);
 
+#ifdef CONFIG_OF
+static const struct of_device_id dac7512_of_match[] = {
+	{ .compatible = "ti,dac7512", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, dac7512_of_match);
+#endif
+
 static struct spi_driver dac7512_driver = {
 	.driver = {
 		.name	= "dac7512",
 		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(dac7512_of_match),
 	},
 	.probe	= dac7512_probe,
 	.remove	= dac7512_remove,
-- 
cgit 


From a840a72d7211e176937d99a164c2ceab601777c3 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 23 Sep 2013 10:35:06 +0900
Subject: misc: tifm: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/tifm_7xx1.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/misc/tifm_7xx1.c b/drivers/misc/tifm_7xx1.c
index f8d6654391e5..ae282a100429 100644
--- a/drivers/misc/tifm_7xx1.c
+++ b/drivers/misc/tifm_7xx1.c
@@ -378,7 +378,6 @@ err_out_irq:
 err_out_unmap:
 	iounmap(fm->addr);
 err_out_free:
-	pci_set_drvdata(dev, NULL);
 	tifm_free_adapter(fm);
 err_out_int:
 	pci_intx(dev, 0);
@@ -405,8 +404,6 @@ static void tifm_7xx1_remove(struct pci_dev *dev)
 	for (cnt = 0; cnt < fm->num_sockets; cnt++)
 		tifm_7xx1_sock_power_off(tifm_7xx1_sock_addr(fm->addr, cnt));
 
-	pci_set_drvdata(dev, NULL);
-
 	iounmap(fm->addr);
 	pci_intx(dev, 0);
 	pci_release_regions(dev);
-- 
cgit 


From 8221b3a8480bcfdc68bae0ee00bbf0d313759149 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 23 Sep 2013 10:36:24 +0900
Subject: misc: ibmasm: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/ibmasm/module.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/misc/ibmasm/module.c b/drivers/misc/ibmasm/module.c
index 0c290e40ce06..6b3bf9ab051d 100644
--- a/drivers/misc/ibmasm/module.c
+++ b/drivers/misc/ibmasm/module.c
@@ -153,7 +153,6 @@ error_ioremap:
 error_heartbeat:
 	ibmasm_event_buffer_exit(sp);
 error_eventbuffer:
-	pci_set_drvdata(pdev, NULL);
 	kfree(sp);
 error_kmalloc:
         pci_release_regions(pdev);
@@ -182,7 +181,6 @@ static void ibmasm_remove_one(struct pci_dev *pdev)
 	ibmasm_free_remote_input_dev(sp);
 	iounmap(sp->base_address);
 	ibmasm_event_buffer_exit(sp);
-	pci_set_drvdata(pdev, NULL);
 	kfree(sp);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-- 
cgit 


From b9be2c60fce7a93723403488a2f5d508ff7d3d2f Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 23 Sep 2013 10:37:24 +0900
Subject: misc: mei: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/pci-me.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index 1b3844e82379..1b8a4c6d0cf8 100644
--- a/drivers/misc/mei/pci-me.c
+++ b/drivers/misc/mei/pci-me.c
@@ -239,7 +239,6 @@ static void mei_me_remove(struct pci_dev *pdev)
 
 	free_irq(pdev->irq, dev);
 	pci_disable_msi(pdev);
-	pci_set_drvdata(pdev, NULL);
 
 	if (hw->mem_addr)
 		pci_iounmap(pdev, hw->mem_addr);
-- 
cgit 


From 30399bbfa698689e81f9507992034fe09700941b Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 23 Sep 2013 10:38:26 +0900
Subject: misc: pti: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/pti.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/misc/pti.c b/drivers/misc/pti.c
index f84ff0c06035..eda38cbe8530 100644
--- a/drivers/misc/pti.c
+++ b/drivers/misc/pti.c
@@ -892,7 +892,6 @@ static void pti_pci_remove(struct pci_dev *pdev)
 	}
 
 	iounmap(drv_data->pti_ioaddr);
-	pci_set_drvdata(pdev, NULL);
 	kfree(drv_data);
 	pci_release_region(pdev, 1);
 	pci_disable_device(pdev);
-- 
cgit 


From 5e809e50eb39284188515b5950d09a63856bb0b1 Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Fri, 27 Sep 2013 00:11:45 +0900
Subject: staging: rtl8188eu: Fix typo in rtl8188eu/hal

Correct spelling typo in rtl8188eu/hal

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/hal/HalPwrSeqCmd.c      |  2 +-
 drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c      |  8 ++++----
 drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c |  4 ++--
 drivers/staging/rtl8188eu/hal/rtl8188e_phycfg.c   |  8 ++++----
 drivers/staging/rtl8188eu/hal/rtl8188e_rf6052.c   | 10 +++++-----
 drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c    |  2 +-
 drivers/staging/rtl8188eu/hal/usb_halinit.c       | 10 +++++-----
 7 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/drivers/staging/rtl8188eu/hal/HalPwrSeqCmd.c b/drivers/staging/rtl8188eu/hal/HalPwrSeqCmd.c
index e913a22a6426..5700dbce5b8c 100644
--- a/drivers/staging/rtl8188eu/hal/HalPwrSeqCmd.c
+++ b/drivers/staging/rtl8188eu/hal/HalPwrSeqCmd.c
@@ -85,7 +85,7 @@ u8 HalPwrSeqCmdParsing(struct adapter *padapter, u8 cut_vers, u8 fab_vers,
 				value &= ~(GET_PWR_CFG_MASK(pwrcfgcmd));
 				value |= (GET_PWR_CFG_VALUE(pwrcfgcmd) & GET_PWR_CFG_MASK(pwrcfgcmd));
 
-				/*  Write the value back to sytem register */
+				/*  Write the value back to system register */
 				rtw_write8(padapter, offset, value);
 				break;
 			case PWR_CMD_POLLING:
diff --git a/drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c b/drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c
index 8c8587754517..0b0c68c9865c 100644
--- a/drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c
+++ b/drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c
@@ -484,7 +484,7 @@ static void ConstructProbeRsp(struct adapter *adapt, u8 *pframe, u32 *pLength, u
 	*pLength = pktlen;
 }
 
-/*  To check if reserved page content is destroyed by beacon beacuse beacon is too large. */
+/*  To check if reserved page content is destroyed by beacon because beacon is too large. */
 /*  2010.06.23. Added by tynli. */
 void CheckFwRsvdPageContent(struct adapter *Adapter)
 {
@@ -496,9 +496,9 @@ void CheckFwRsvdPageContent(struct adapter *Adapter)
 /*			(1)Beacon, (2)Ps-poll, (3)Null data, (4)ProbeRsp. */
 /*	Input: */
 /*	    bDLFinished - false: At the first time we will send all the packets as a large packet to Hw, */
-/*						so we need to set the packet length to total lengh. */
+/*						so we need to set the packet length to total length. */
 /*			      true: At the second time, we should send the first packet (default:beacon) */
-/*						to Hw again and set the lengh in descriptor to the real beacon lengh. */
+/*						to Hw again and set the length in descriptor to the real beacon length. */
 /*  2009.10.15 by tynli. */
 static void SetFwRsvdPagePkt(struct adapter *adapt, bool bDLFinished)
 {
@@ -671,7 +671,7 @@ _func_enter_;
 			DBG_88E("%s: 1 Download RSVD success! DLBcnCount:%u, poll:%u\n", __func__, DLBcnCount, poll);
 		/*  */
 		/*  We just can send the reserved page twice during the time that Tx thread is stopped (e.g. pnpsetpower) */
-		/*  becuase we need to free the Tx BCN Desc which is used by the first reserved page packet. */
+		/*  because we need to free the Tx BCN Desc which is used by the first reserved page packet. */
 		/*  At run time, we cannot get the Tx Desc until it is released in TxHandleInterrupt() so we will return */
 		/*  the beacon TCB in the following code. 2011.11.23. by tynli. */
 		/*  */
diff --git a/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c b/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c
index 390ab39591e6..51f03c3b53a4 100644
--- a/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c
+++ b/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c
@@ -1651,7 +1651,7 @@ hal_EfusePgCheckAvailableAddr(
 {
 	u16	efuse_max_available_len = 0;
 
-	/* Change to check TYPE_EFUSE_MAP_LEN , beacuse 8188E raw 256, logic map over 256. */
+	/* Change to check TYPE_EFUSE_MAP_LEN , because 8188E raw 256, logic map over 256. */
 	EFUSE_GetEfuseDefinition(pAdapter, EFUSE_WIFI, TYPE_EFUSE_MAP_LEN, (void *)&efuse_max_available_len, false);
 
 	if (Efuse_GetCurrentSize(pAdapter, efuseType, bPseudoTest) >= efuse_max_available_len)
@@ -2098,7 +2098,7 @@ static u8 Hal_GetChnlGroup88E(u8 chnl, u8 *pGroup)
 	if (chnl <= 14) {
 		bIn24G = true;
 
-		if (chnl < 3)			/*  Chanel 1-2 */
+		if (chnl < 3)			/*  Channel 1-2 */
 			*pGroup = 0;
 		else if (chnl < 6)		/*  Channel 3-5 */
 			*pGroup = 1;
diff --git a/drivers/staging/rtl8188eu/hal/rtl8188e_phycfg.c b/drivers/staging/rtl8188eu/hal/rtl8188e_phycfg.c
index ff468a68e327..68bb96d83c81 100644
--- a/drivers/staging/rtl8188eu/hal/rtl8188e_phycfg.c
+++ b/drivers/staging/rtl8188eu/hal/rtl8188e_phycfg.c
@@ -559,7 +559,7 @@ static	int phy_BB8188E_Config_ParaFile(struct adapter *Adapter)
 
 	/*  */
 	/*  1. Read PHY_REG.TXT BB INIT!! */
-	/*  We will seperate as 88C / 92C according to chip version */
+	/*  We will separate as 88C / 92C according to chip version */
 	/*  */
 	if (HAL_STATUS_FAILURE == ODM_ConfigBBWithHeaderFile(&pHalData->odmpriv, CONFIG_BB_PHY_REG))
 		rtStatus = _FAIL;
@@ -685,7 +685,7 @@ static	u8 phy_DbmToTxPwrIdx(struct adapter *Adapter, enum wireless_mode Wireless
 
 	/*  */
 	/*  Tested by MP, we found that CCK Index 0 equals to 8dbm, OFDM legacy equals to */
-	/*  3dbm, and OFDM HT equals to 0dbm repectively. */
+	/*  3dbm, and OFDM HT equals to 0dbm respectively. */
 	/*  Note: */
 	/*	The mapping may be different by different NICs. Do not use this formula for what needs accurate result. */
 	/*  By Bruce, 2008-01-29. */
@@ -1006,12 +1006,12 @@ _PHY_SetBWMode92C(
 	switch (pHalData->CurrentChannelBW) {
 	case HT_CHANNEL_WIDTH_20:
 		regBwOpMode |= BW_OPMODE_20MHZ;
-		/*  2007/02/07 Mark by Emily becasue we have not verify whether this register works */
+		/*  2007/02/07 Mark by Emily because we have not verify whether this register works */
 		rtw_write8(Adapter, REG_BWOPMODE, regBwOpMode);
 		break;
 	case HT_CHANNEL_WIDTH_40:
 		regBwOpMode &= ~BW_OPMODE_20MHZ;
-		/*  2007/02/07 Mark by Emily becasue we have not verify whether this register works */
+		/*  2007/02/07 Mark by Emily because we have not verify whether this register works */
 		rtw_write8(Adapter, REG_BWOPMODE, regBwOpMode);
 		regRRSR_RSC = (regRRSR_RSC&0x90) | (pHalData->nCur40MhzPrimeSC<<5);
 		rtw_write8(Adapter, REG_RRSR+2, regRRSR_RSC);
diff --git a/drivers/staging/rtl8188eu/hal/rtl8188e_rf6052.c b/drivers/staging/rtl8188eu/hal/rtl8188e_rf6052.c
index bfdf9b3ce77f..299e03e3daf6 100644
--- a/drivers/staging/rtl8188eu/hal/rtl8188e_rf6052.c
+++ b/drivers/staging/rtl8188eu/hal/rtl8188e_rf6052.c
@@ -181,7 +181,7 @@ i		 *  Currently, we cannot fully disable driver dynamic
 		 * tx power mechanism because it is referenced by BT
 		 * coexist mechanism.
 		 * In the future, two mechanism shall be separated from
-		 * each other and maintained independantly. */
+		 * each other and maintained independently. */
 		if (pdmpriv->DynamicTxHighPowerLvl == TxHighPwrLevel_Level1) {
 			TxAGC[RF_PATH_A] = 0x10101010;
 			TxAGC[RF_PATH_B] = 0x10101010;
@@ -216,11 +216,11 @@ i		 *  Currently, we cannot fully disable driver dynamic
 	ODM_TxPwrTrackAdjust88E(&pHalData->odmpriv, 1, &direction, &pwrtrac_value);
 
 	if (direction == 1) {
-		/*  Increase TX pwoer */
+		/*  Increase TX power */
 		TxAGC[0] += pwrtrac_value;
 		TxAGC[1] += pwrtrac_value;
 	} else if (direction == 2) {
-		/*  Decrease TX pwoer */
+		/*  Decrease TX power */
 		TxAGC[0] -=  pwrtrac_value;
 		TxAGC[1] -=  pwrtrac_value;
 	}
@@ -292,7 +292,7 @@ static void get_rx_power_val_by_reg(struct adapter *Adapter, u8 Channel,
 			if (pHalData->pwrGroupCnt == 1)
 				chnlGroup = 0;
 			if (pHalData->pwrGroupCnt >= pHalData->PGMaxGroup) {
-				if (Channel < 3)			/*  Chanel 1-2 */
+				if (Channel < 3)			/*  Channel 1-2 */
 					chnlGroup = 0;
 				else if (Channel < 6)		/*  Channel 3-5 */
 					chnlGroup = 1;
@@ -349,7 +349,7 @@ static void get_rx_power_val_by_reg(struct adapter *Adapter, u8 Channel,
 		}
 /*  20100427 Joseph: Driver dynamic Tx power shall not affect Tx power. It shall be determined by power training mechanism. */
 /*  Currently, we cannot fully disable driver dynamic tx power mechanism because it is referenced by BT coexist mechanism. */
-/*  In the future, two mechanism shall be separated from each other and maintained independantly. Thanks for Lanhsin's reminder. */
+/*  In the future, two mechanism shall be separated from each other and maintained independently. Thanks for Lanhsin's reminder. */
 		/* 92d do not need this */
 		if (pdmpriv->DynamicTxHighPowerLvl == TxHighPwrLevel_Level1)
 			writeVal = 0x14141414;
diff --git a/drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c b/drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c
index bd8a9ae5d077..8f43f4966f22 100644
--- a/drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c
+++ b/drivers/staging/rtl8188eu/hal/rtl8188eu_xmit.c
@@ -332,7 +332,7 @@ static s32 update_txdesc(struct xmit_frame *pxmitframe, u8 *pmem, s32 sz, u8 bag
 
 	/*  2009.11.05. tynli_test. Suggested by SD4 Filen for FW LPS. */
 	/*  (1) The sequence number of each non-Qos frame / broadcast / multicast / */
-	/*  mgnt frame should be controled by Hw because Fw will also send null data */
+	/*  mgnt frame should be controlled by Hw because Fw will also send null data */
 	/*  which we cannot control when Fw LPS enable. */
 	/*  --> default enable non-Qos data sequense number. 2010.06.23. by tynli. */
 	/*  (2) Enable HW SEQ control for beacon packet, because we use Hw beacon. */
diff --git a/drivers/staging/rtl8188eu/hal/usb_halinit.c b/drivers/staging/rtl8188eu/hal/usb_halinit.c
index 5e656ce45407..cca973211b2f 100644
--- a/drivers/staging/rtl8188eu/hal/usb_halinit.c
+++ b/drivers/staging/rtl8188eu/hal/usb_halinit.c
@@ -464,7 +464,7 @@ static void _InitRetryFunction(struct adapter *Adapter)
 /*-----------------------------------------------------------------------------
  * Function:	usb_AggSettingTxUpdate()
  *
- * Overview:	Seperate TX/RX parameters update independent for TP detection and
+ * Overview:	Separate TX/RX parameters update independent for TP detection and
  *			dynamic TX/RX aggreagtion parameters update.
  *
  * Input:			struct adapter *
@@ -473,7 +473,7 @@ static void _InitRetryFunction(struct adapter *Adapter)
  *
  * Revised History:
  *	When		Who		Remark
- *	12/10/2010	MHC		Seperate to smaller function.
+ *	12/10/2010	MHC		Separate to smaller function.
  *
  *---------------------------------------------------------------------------*/
 static void usb_AggSettingTxUpdate(struct adapter *Adapter)
@@ -496,7 +496,7 @@ static void usb_AggSettingTxUpdate(struct adapter *Adapter)
 /*-----------------------------------------------------------------------------
  * Function:	usb_AggSettingRxUpdate()
  *
- * Overview:	Seperate TX/RX parameters update independent for TP detection and
+ * Overview:	Separate TX/RX parameters update independent for TP detection and
  *			dynamic TX/RX aggreagtion parameters update.
  *
  * Input:			struct adapter *
@@ -505,7 +505,7 @@ static void usb_AggSettingTxUpdate(struct adapter *Adapter)
  *
  * Revised History:
  *	When		Who		Remark
- *	12/10/2010	MHC		Seperate to smaller function.
+ *	12/10/2010	MHC		Separate to smaller function.
  *
  *---------------------------------------------------------------------------*/
 static void
@@ -847,7 +847,7 @@ _func_enter_;
 
 	/*  */
 	/*  Init CR MACTXEN, MACRXEN after setting RxFF boundary REG_TRXFF_BNDY to patch */
-	/*  Hw bug which Hw initials RxFF boundry size to a value which is larger than the real Rx buffer size in 88E. */
+	/*  Hw bug which Hw initials RxFF boundary size to a value which is larger than the real Rx buffer size in 88E. */
 	/*  */
 	/*  Enable MACTXEN/MACRXEN block */
 	value16 = rtw_read16(Adapter, REG_CR);
-- 
cgit 


From 7efc02ca94c350fe6f77203fd87394e9dc2874d9 Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Fri, 27 Sep 2013 00:11:46 +0900
Subject: staging: rtl8188eu: Fix typo in rtl8188eu/os_dep

Correct spelling typo in rtl8188eu/os_dep

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/os_dep/ioctl_linux.c   | 12 ++++++------
 drivers/staging/rtl8188eu/os_dep/os_intfs.c      |  2 +-
 drivers/staging/rtl8188eu/os_dep/osdep_service.c |  2 +-
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
index 1138ed18780f..070bd7570839 100644
--- a/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
+++ b/drivers/staging/rtl8188eu/os_dep/ioctl_linux.c
@@ -1074,7 +1074,7 @@ static int rtw_wx_get_range(struct net_device *dev,
 
 /*  The following code will proivde the security capability to network manager. */
 /*  If the driver doesn't provide this capability to network manager, */
-/*  the WPA/WPA2 routers can't be choosen in the network manager. */
+/*  the WPA/WPA2 routers can't be chosen in the network manager. */
 
 /*
 #define IW_SCAN_CAPA_NONE		0x00
@@ -1373,7 +1373,7 @@ _func_enter_;
 				}
 			}
 
-			/* it has still some scan paramater to parse, we only do this now... */
+			/* it has still some scan parameter to parse, we only do this now... */
 			_status = rtw_set_802_11_bssid_list_scan(padapter, ssid, RTW_SSID_SCAN_AMOUNT);
 		} else {
 			_status = rtw_set_802_11_bssid_list_scan(padapter, NULL, 0);
@@ -2961,7 +2961,7 @@ static int rtw_p2p_get_status(struct net_device *dev,
 
 /*	Commented by Albert 20110520 */
 /*	This function will return the config method description */
-/*	This config method description will show us which config method the remote P2P device is intented to use */
+/*	This config method description will show us which config method the remote P2P device is intended to use */
 /*	by sending the provisioning discovery request frame. */
 
 static int rtw_p2p_get_req_cm(struct net_device *dev,
@@ -3413,7 +3413,7 @@ static int rtw_p2p_get_invitation_procedure(struct net_device *dev,
 	/*  +8 is for the str "InvProc =", we have to clear it at wrqu->data.pointer */
 
 	/*	Commented by Ouden 20121226 */
-	/*	The application wants to know P2P initation procedure is support or not. */
+	/*	The application wants to know P2P initiation procedure is supported or not. */
 	/*	Format: iwpriv wlanx p2p_get2 InvProc = 00:E0:4C:00:00:05 */
 
 	DBG_88E("[%s] data = %s\n", __func__, (char *)extra);
@@ -6145,7 +6145,7 @@ static int rtw_mp_efuse_set(struct net_device *dev,
 
 		for (jj = 0, kk = 0; jj < cnts; jj++, kk += 2)
 			setdata[jj] = key_2char2num(tmp[2][kk], tmp[2][kk + 1]);
-		/* Change to check TYPE_EFUSE_MAP_LEN, beacuse 8188E raw 256, logic map over 256. */
+		/* Change to check TYPE_EFUSE_MAP_LEN, because 8188E raw 256, logic map over 256. */
 		EFUSE_GetEfuseDefinition(padapter, EFUSE_WIFI, TYPE_EFUSE_MAP_LEN, (void *)&max_available_size, false);
 		if ((addr+cnts) > max_available_size) {
 			DBG_88E("%s: addr(0x%X)+cnts(%d) parameter error!\n", __func__, addr, cnts);
@@ -6220,7 +6220,7 @@ static int rtw_mp_efuse_set(struct net_device *dev,
 
 		for (jj = 0, kk = 0; jj < cnts; jj++, kk += 2)
 			setdata[jj] = key_2char2num(tmp[1][kk], tmp[1][kk + 1]);
-		/* Change to check TYPE_EFUSE_MAP_LEN, beacuse 8188E raw 256, logic map over 256. */
+		/* Change to check TYPE_EFUSE_MAP_LEN, because 8188E raw 256, logic map over 256. */
 		EFUSE_GetEfuseDefinition(padapter, EFUSE_WIFI, TYPE_EFUSE_MAP_LEN, (void *)&max_available_size, false);
 		if ((addr+cnts) > max_available_size) {
 			DBG_88E("%s: addr(0x%X)+cnts(%d) parameter error!\n", __func__, addr, cnts);
diff --git a/drivers/staging/rtl8188eu/os_dep/os_intfs.c b/drivers/staging/rtl8188eu/os_dep/os_intfs.c
index 63bc913eba6d..da9f0d5f76f7 100644
--- a/drivers/staging/rtl8188eu/os_dep/os_intfs.c
+++ b/drivers/staging/rtl8188eu/os_dep/os_intfs.c
@@ -85,7 +85,7 @@ static int rtw_uapsd_acvi_en;
 static int rtw_uapsd_acvo_en;
 
 int rtw_ht_enable = 1;
-int rtw_cbw40_enable = 3; /*  0 :diable, bit(0): enable 2.4g, bit(1): enable 5g */
+int rtw_cbw40_enable = 3; /*  0 :disable, bit(0): enable 2.4g, bit(1): enable 5g */
 int rtw_ampdu_enable = 1;/* for enable tx_ampdu */
 static int rtw_rx_stbc = 1;/*  0: disable, bit(0):enable 2.4g, bit(1):enable 5g, default is set to enable 2.4GHZ for IOT issue with bufflao's AP at 5GHZ */
 static int rtw_ampdu_amsdu;/*  0: disabled, 1:enabled, 2:auto */
diff --git a/drivers/staging/rtl8188eu/os_dep/osdep_service.c b/drivers/staging/rtl8188eu/os_dep/osdep_service.c
index 51a1f6f9dbe7..5a9e9e4558aa 100644
--- a/drivers/staging/rtl8188eu/os_dep/osdep_service.c
+++ b/drivers/staging/rtl8188eu/os_dep/osdep_service.c
@@ -795,7 +795,7 @@ void *rtw_cbuf_pop(struct rtw_cbuf *cbuf)
 }
 
 /**
- * rtw_cbuf_alloc - allocte a rtw_cbuf with given size and do initialization
+ * rtw_cbuf_alloc - allocate a rtw_cbuf with given size and do initialization
  * @size: size of pointer
  *
  * Returns: pointer of srtuct rtw_cbuf, NULL for allocation failure
-- 
cgit 


From f7bba924ed74d1811345f7be68d3e802339068de Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Fri, 27 Sep 2013 00:11:43 +0900
Subject: staging: rtl8188eu: Fix typo in rtl8188eu/include

Correct spelling typo in rtl8188eu/include

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/include/Hal8188EPhyReg.h    |  2 +-
 drivers/staging/rtl8188eu/include/odm_debug.h         |  2 +-
 drivers/staging/rtl8188eu/include/rtw_cmd.h           |  2 +-
 drivers/staging/rtl8188eu/include/rtw_led.h           |  4 ++--
 drivers/staging/rtl8188eu/include/rtw_mlme.h          | 12 ++++++------
 drivers/staging/rtl8188eu/include/rtw_mlme_ext.h      |  2 +-
 drivers/staging/rtl8188eu/include/rtw_mp_phy_regdef.h |  2 +-
 drivers/staging/rtl8188eu/include/rtw_rf.h            |  2 +-
 drivers/staging/rtl8188eu/include/sta_info.h          |  2 +-
 drivers/staging/rtl8188eu/include/wifi.h              |  2 +-
 10 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/rtl8188eu/include/Hal8188EPhyReg.h b/drivers/staging/rtl8188eu/include/Hal8188EPhyReg.h
index 0e06d29b2d2a..9f2969bf8355 100644
--- a/drivers/staging/rtl8188eu/include/Hal8188EPhyReg.h
+++ b/drivers/staging/rtl8188eu/include/Hal8188EPhyReg.h
@@ -26,7 +26,7 @@
 /*  2. 0x800/0x900/0xA00/0xC00/0xD00/0xE00 */
 /*  3. RF register 0x00-2E */
 /*  4. Bit Mask for BB/RF register */
-/*  5. Other defintion for BB/RF R/W */
+/*  5. Other definition for BB/RF R/W */
 /*  */
 
 
diff --git a/drivers/staging/rtl8188eu/include/odm_debug.h b/drivers/staging/rtl8188eu/include/odm_debug.h
index a9ba6df26b9d..622f4c1418b4 100644
--- a/drivers/staging/rtl8188eu/include/odm_debug.h
+++ b/drivers/staging/rtl8188eu/include/odm_debug.h
@@ -27,7 +27,7 @@
 /*	Define the debug levels */
 /*  */
 /*	1. DBG_TRACE and DBG_LOUD are used for normal cases. */
-/*	They can help SW engineer to develope or trace states changed */
+/*	They can help SW engineer to develop or trace states changed */
 /*	and also help HW enginner to trace every operation to and from HW, */
 /*	e.g IO, Tx, Rx. */
 /*  */
diff --git a/drivers/staging/rtl8188eu/include/rtw_cmd.h b/drivers/staging/rtl8188eu/include/rtw_cmd.h
index 819285b9a781..8cafd7adfdcd 100644
--- a/drivers/staging/rtl8188eu/include/rtw_cmd.h
+++ b/drivers/staging/rtl8188eu/include/rtw_cmd.h
@@ -745,7 +745,7 @@ struct TDLSoption_param
 
 Result:
 0x00: success
-0x01: sucess, and check Response.
+0x01: success, and check Response.
 0x02: cmd ignored due to duplicated sequcne number
 0x03: cmd dropped due to invalid cmd code
 0x04: reserved.
diff --git a/drivers/staging/rtl8188eu/include/rtw_led.h b/drivers/staging/rtl8188eu/include/rtw_led.h
index 2e618043d353..d0da4fd40d18 100644
--- a/drivers/staging/rtl8188eu/include/rtw_led.h
+++ b/drivers/staging/rtl8188eu/include/rtw_led.h
@@ -163,14 +163,14 @@ enum LED_STRATEGY_871x {
 void LedControl8188eu(struct adapter *padapter, enum LED_CTL_MODE	LedAction);
 
 struct led_priv{
-	/* add for led controll */
+	/* add for led control */
 	struct LED_871x			SwLed0;
 	struct LED_871x			SwLed1;
 	enum LED_STRATEGY_871x	LedStrategy;
 	u8	bRegUseLed;
 	void (*LedControlHandler)(struct adapter *padapter,
 				  enum LED_CTL_MODE LedAction);
-	/* add for led controll */
+	/* add for led control */
 };
 
 #define rtw_led_control(adapt, action) \
diff --git a/drivers/staging/rtl8188eu/include/rtw_mlme.h b/drivers/staging/rtl8188eu/include/rtw_mlme.h
index 22538e61695a..4a7143e0eed0 100644
--- a/drivers/staging/rtl8188eu/include/rtw_mlme.h
+++ b/drivers/staging/rtl8188eu/include/rtw_mlme.h
@@ -53,11 +53,11 @@
 #define	WIFI_SITE_MONITOR		0x00000800	/* to indicate the station is under site surveying */
 
 #define	WIFI_MP_STATE			0x00010000
-#define	WIFI_MP_CTX_BACKGROUND		0x00020000	/*  in continous tx background */
-#define	WIFI_MP_CTX_ST			0x00040000	/*  in continous tx with single-tone */
-#define	WIFI_MP_CTX_BACKGROUND_PENDING	0x00080000	/*  pending in continous tx background due to out of skb */
-#define	WIFI_MP_CTX_CCK_HW		0x00100000	/*  in continous tx */
-#define	WIFI_MP_CTX_CCK_CS		0x00200000	/*  in continous tx with carrier suppression */
+#define	WIFI_MP_CTX_BACKGROUND		0x00020000	/*  in continuous tx background */
+#define	WIFI_MP_CTX_ST			0x00040000	/*  in continuous tx with single-tone */
+#define	WIFI_MP_CTX_BACKGROUND_PENDING	0x00080000	/*  pending in continuous tx background due to out of skb */
+#define	WIFI_MP_CTX_CCK_HW		0x00100000	/*  in continuous tx */
+#define	WIFI_MP_CTX_CCK_CS		0x00200000	/*  in continuous tx with carrier suppression */
 #define WIFI_MP_LPBK_STATE		0x00400000
 
 #define _FW_UNDER_LINKING	WIFI_UNDER_LINKING
@@ -239,7 +239,7 @@ struct wifidirect_info {
 	u8 profileindex; /* Used to point to the index of profileinfo array */
 	u8 peer_operating_ch;
 	u8 find_phase_state_exchange_cnt;
-	/* The device password ID for group negotation */
+	/* The device password ID for group negotiation */
 	u16 device_password_id_for_nego;
 	u8 negotiation_dialog_token;
 	/* SSID information for group negotitation */
diff --git a/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h b/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h
index 853ab80a2b86..b1bfa2e30fdb 100644
--- a/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h
+++ b/drivers/staging/rtl8188eu/include/rtw_mlme_ext.h
@@ -107,7 +107,7 @@ extern unsigned char WMM_PARA_OUI[];
 /*  Note: */
 /*	We just add new channel plan when the new channel plan is different
  *      from any of the following channel plan. */
-/*	If you just wnat to customize the acitions(scan period or join actions)
+/*	If you just want to customize the actions(scan period or join actions)
  *      about one of the channel plan, */
 /*	customize them in struct rt_channel_info in the RT_CHANNEL_LIST. */
 enum RT_CHANNEL_DOMAIN {
diff --git a/drivers/staging/rtl8188eu/include/rtw_mp_phy_regdef.h b/drivers/staging/rtl8188eu/include/rtw_mp_phy_regdef.h
index 3ad22076de3f..30fd17f23bf1 100644
--- a/drivers/staging/rtl8188eu/include/rtw_mp_phy_regdef.h
+++ b/drivers/staging/rtl8188eu/include/rtw_mp_phy_regdef.h
@@ -56,7 +56,7 @@
 /*  2. 0x800/0x900/0xA00/0xC00/0xD00/0xE00 */
 /*  3. RF register 0x00-2E */
 /*  4. Bit Mask for BB/RF register */
-/*  5. Other defintion for BB/RF R/W */
+/*  5. Other definition for BB/RF R/W */
 /*  */
 
 
diff --git a/drivers/staging/rtl8188eu/include/rtw_rf.h b/drivers/staging/rtl8188eu/include/rtw_rf.h
index 089ecee6c1f9..2df88370de59 100644
--- a/drivers/staging/rtl8188eu/include/rtw_rf.h
+++ b/drivers/staging/rtl8188eu/include/rtw_rf.h
@@ -119,7 +119,7 @@ enum ht_channel_width {
 };
 
 /*  */
-/*  Represent Extention Channel Offset in HT Capabilities */
+/*  Represent Extension Channel Offset in HT Capabilities */
 /*  This is available only in 40Mhz mode. */
 /*  */
 enum ht_extchnl_offset {
diff --git a/drivers/staging/rtl8188eu/include/sta_info.h b/drivers/staging/rtl8188eu/include/sta_info.h
index 3ed2a39741ad..3e909db1d41a 100644
--- a/drivers/staging/rtl8188eu/include/sta_info.h
+++ b/drivers/staging/rtl8188eu/include/sta_info.h
@@ -338,7 +338,7 @@ struct	sta_priv {
 	 */
 	struct sta_info *sta_aid[NUM_STA];
 
-	u16 sta_dz_bitmap;/* only support 15 stations, staion aid bitmap
+	u16 sta_dz_bitmap;/* only support 15 stations, station aid bitmap
 			   * for sleeping sta. */
 	u16 tim_bitmap;	/* only support 15 stations, aid=0~15 mapping
 			 * bit0~bit15 */
diff --git a/drivers/staging/rtl8188eu/include/wifi.h b/drivers/staging/rtl8188eu/include/wifi.h
index a615659f9471..84e519974199 100644
--- a/drivers/staging/rtl8188eu/include/wifi.h
+++ b/drivers/staging/rtl8188eu/include/wifi.h
@@ -984,7 +984,7 @@ enum ht_cap_ampdu_factor {
 #define	P2P_PROVISION_TIMEOUT		5000
 /* 3 seconds timeout for sending the prov disc request concurrent mode */
 #define	P2P_CONCURRENT_PROVISION_TIME	3000
-/* 5 seconds timeout for receiving the group negotation response */
+/* 5 seconds timeout for receiving the group negotiation response */
 #define	P2P_GO_NEGO_TIMEOUT		5000
 /* 3 seconds timeout for sending the negotiation request under concurrent mode */
 #define	P2P_CONCURRENT_GO_NEGO_TIME	3000
-- 
cgit 


From 08c64f932b04f62f48ca6c991c54264800e8e0b8 Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Fri, 27 Sep 2013 00:11:44 +0900
Subject: staging: rtl8188eu: Fix typo in rtl8188eu/core

Correct spelling typo in rtl8188eu/core

Signed-off-by: Masanari Iida <standby24x7@gmail.com>

# Please enter the commit message for your changes. Lines starting
# with '#' will be kept; you may remove them yourself if you want to.
# An empty message aborts the commit.
# On branch rtl8188eu-typo2
# Changes to be committed:
#	modified:   drivers/staging/rtl8188eu/core/rtw_ap.c
#	modified:   drivers/staging/rtl8188eu/core/rtw_br_ext.c
#	modified:   drivers/staging/rtl8188eu/core/rtw_cmd.c
#	modified:   drivers/staging/rtl8188eu/core/rtw_efuse.c
#	modified:   drivers/staging/rtl8188eu/core/rtw_ieee80211.c
#	modified:   drivers/staging/rtl8188eu/core/rtw_mlme.c
#	modified:   drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
#	modified:   drivers/staging/rtl8188eu/core/rtw_security.c
#
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/core/rtw_ap.c        |  2 +-
 drivers/staging/rtl8188eu/core/rtw_br_ext.c    |  2 +-
 drivers/staging/rtl8188eu/core/rtw_cmd.c       |  2 +-
 drivers/staging/rtl8188eu/core/rtw_efuse.c     |  4 ++--
 drivers/staging/rtl8188eu/core/rtw_ieee80211.c |  2 +-
 drivers/staging/rtl8188eu/core/rtw_mlme.c      | 20 ++++++++++----------
 drivers/staging/rtl8188eu/core/rtw_mlme_ext.c  |  6 +++---
 drivers/staging/rtl8188eu/core/rtw_security.c  |  2 +-
 8 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_ap.c b/drivers/staging/rtl8188eu/core/rtw_ap.c
index 2c73823d2245..2c678f409573 100644
--- a/drivers/staging/rtl8188eu/core/rtw_ap.c
+++ b/drivers/staging/rtl8188eu/core/rtw_ap.c
@@ -348,7 +348,7 @@ void	expire_timeout_chk(struct adapter *padapter)
 
 			if (psta->state & WIFI_SLEEP_STATE) {
 				if (!(psta->state & WIFI_STA_ALIVE_CHK_STATE)) {
-					/* to check if alive by another methods if staion is at ps mode. */
+					/* to check if alive by another methods if station is at ps mode. */
 					psta->expire_to = pstapriv->expire_to;
 					psta->state |= WIFI_STA_ALIVE_CHK_STATE;
 
diff --git a/drivers/staging/rtl8188eu/core/rtw_br_ext.c b/drivers/staging/rtl8188eu/core/rtw_br_ext.c
index 63564f71c7c9..9f40742ee5cf 100644
--- a/drivers/staging/rtl8188eu/core/rtw_br_ext.c
+++ b/drivers/staging/rtl8188eu/core/rtw_br_ext.c
@@ -527,7 +527,7 @@ int nat25_db_handle(struct adapter *priv, struct sk_buff *skb, int method)
 		case NAT25_CHECK:
 			return -1;
 		case NAT25_INSERT:
-			/* some muticast with source IP is all zero, maybe other case is illegal */
+			/* some multicast with source IP is all zero, maybe other case is illegal */
 			/* in class A, B, C, host address is all zero or all one is illegal */
 			if (iph->saddr == 0)
 				return 0;
diff --git a/drivers/staging/rtl8188eu/core/rtw_cmd.c b/drivers/staging/rtl8188eu/core/rtw_cmd.c
index 9632ef48fbc1..06be02c79ce8 100644
--- a/drivers/staging/rtl8188eu/core/rtw_cmd.c
+++ b/drivers/staging/rtl8188eu/core/rtw_cmd.c
@@ -1162,7 +1162,7 @@ _func_enter_;
 	else
 		memcpy(&psetstakey_para->key, &psecuritypriv->dot118021XGrpKey[psecuritypriv->dot118021XGrpKeyid].skey, 16);
 
-	/* jeff: set this becasue at least sw key is ready */
+	/* jeff: set this because at least sw key is ready */
 	padapter->securitypriv.busetkipkey = true;
 
 	res = rtw_enqueue_cmd(pcmdpriv, ph2c);
diff --git a/drivers/staging/rtl8188eu/core/rtw_efuse.c b/drivers/staging/rtl8188eu/core/rtw_efuse.c
index ad1c174cd7ee..806f56f1c437 100644
--- a/drivers/staging/rtl8188eu/core/rtw_efuse.c
+++ b/drivers/staging/rtl8188eu/core/rtw_efuse.c
@@ -159,7 +159,7 @@ Efuse_CalculateWordCnts(u8 word_en)
 /*  */
 /* 	Description: */
 /* 		Execute E-Fuse read byte operation. */
-/* 		Refered from SD1 Richard. */
+/* 		Referred from SD1 Richard. */
 /*  */
 /* 	Assumption: */
 /* 		1. Boot from E-Fuse and successfully auto-load. */
@@ -214,7 +214,7 @@ ReadEFuseByte(
 /* 	Description: */
 /* 		1. Execute E-Fuse read byte operation according as map offset and */
 /* 		    save to E-Fuse table. */
-/* 		2. Refered from SD1 Richard. */
+/* 		2. Referred from SD1 Richard. */
 /*  */
 /* 	Assumption: */
 /* 		1. Boot from E-Fuse and successfully auto-load. */
diff --git a/drivers/staging/rtl8188eu/core/rtw_ieee80211.c b/drivers/staging/rtl8188eu/core/rtw_ieee80211.c
index 6fc77428e83a..e6f98fb8f113 100644
--- a/drivers/staging/rtl8188eu/core/rtw_ieee80211.c
+++ b/drivers/staging/rtl8188eu/core/rtw_ieee80211.c
@@ -1129,7 +1129,7 @@ void rtw_macaddr_cfg(u8 *mac_addr)
 		mac[3] = 0x87;
 		mac[4] = 0x00;
 		mac[5] = 0x00;
-		/*  use default mac addresss */
+		/*  use default mac address */
 		memcpy(mac_addr, mac, ETH_ALEN);
 		DBG_88E("MAC Address from efuse error, assign default one !!!\n");
 	}
diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme.c b/drivers/staging/rtl8188eu/core/rtw_mlme.c
index ea6607196d84..ac3535d33a45 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mlme.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mlme.c
@@ -557,7 +557,7 @@ _func_enter_;
 			sq_final = ((u32)(src->PhyInfo.SignalQuality)+(u32)(dst->PhyInfo.SignalQuality)*4)/5;
 			rssi_final = (src->Rssi+dst->Rssi*4)/5;
 		} else {
-			/* bss info not receving from the right channel, use the original RX signal infos */
+			/* bss info not receiving from the right channel, use the original RX signal infos */
 			ss_final = dst->PhyInfo.SignalStrength;
 			sq_final = dst->PhyInfo.SignalQuality;
 			rssi_final = dst->Rssi;
@@ -636,7 +636,7 @@ _func_enter_;
 			pnetwork->aid = 0;
 			pnetwork->join_res = 0;
 
-			/* bss info not receving from the right channel */
+			/* bss info not receiving from the right channel */
 			if (pnetwork->network.PhyInfo.SignalQuality == 101)
 				pnetwork->network.PhyInfo.SignalQuality = 0;
 		} else {
@@ -656,7 +656,7 @@ _func_enter_;
 
 			pnetwork->last_scanned = rtw_get_current_time();
 
-			/* bss info not receving from the right channel */
+			/* bss info not receiving from the right channel */
 			if (pnetwork->network.PhyInfo.SignalQuality == 101)
 				pnetwork->network.PhyInfo.SignalQuality = 0;
 			rtw_list_insert_tail(&(pnetwork->list), &(queue->queue));
@@ -670,7 +670,7 @@ _func_enter_;
 
 		pnetwork->last_scanned = rtw_get_current_time();
 
-		/* target.Reserved[0]== 1, means that scaned network is a bcn frame. */
+		/* target.Reserved[0]== 1, means that scanned network is a bcn frame. */
 		if ((pnetwork->network.IELength > target->IELength) && (target->Reserved[0] == 1))
 			update_ie = false;
 
@@ -1130,7 +1130,7 @@ static struct sta_info *rtw_joinbss_update_stainfo(struct adapter *padapter, str
 			padapter->securitypriv.wps_ie_len = 0;
 		}
 		/* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info */
-		/* if A-MPDU Rx is enabled, reseting  rx_ordering_ctrl wstart_b(indicate_seq) to default value = 0xffff */
+		/* if A-MPDU Rx is enabled, resetting  rx_ordering_ctrl wstart_b(indicate_seq) to default value = 0xffff */
 		/* todo: check if AP can send A-MPDU packets */
 		for (i = 0; i < 16; i++) {
 			/* preorder_ctrl = &precvpriv->recvreorder_ctrl[i]; */
@@ -1210,7 +1210,7 @@ static void rtw_joinbss_update_network(struct adapter *padapter, struct wlan_net
 	rtw_update_ht_cap(padapter, cur_network->network.IEs, cur_network->network.IELength);
 }
 
-/* Notes: the fucntion could be > passive_level (the same context as Rx tasklet) */
+/* Notes: the function could be > passive_level (the same context as Rx tasklet) */
 /* pnetwork: returns from rtw_joinbss_event_callback */
 /* ptarget_wlan: found from scanned_queue */
 /* if join_res > 0, for (fw_state == WIFI_STATION_STATE), we check if  "ptarget_sta" & "ptarget_wlan" exist. */
@@ -2177,7 +2177,7 @@ _func_enter_;
 _func_exit_;
 }
 
-/* the fucntion is at passive_level */
+/* the function is at passive_level */
 void rtw_joinbss_reset(struct adapter *padapter)
 {
 	u8	threshold;
@@ -2205,7 +2205,7 @@ void rtw_joinbss_reset(struct adapter *padapter)
 	}
 }
 
-/* the fucntion is >= passive_level */
+/* the function is >= passive_level */
 unsigned int rtw_restructure_ht_ie(struct adapter *padapter, u8 *in_ie, u8 *out_ie, uint in_len, uint *pout_len)
 {
 	u32 ielen, out_len;
@@ -2273,7 +2273,7 @@ unsigned int rtw_restructure_ht_ie(struct adapter *padapter, u8 *in_ie, u8 *out_
 	return phtpriv->ht_option;
 }
 
-/* the fucntion is > passive_level (in critical_section) */
+/* the function is > passive_level (in critical_section) */
 void rtw_update_ht_cap(struct adapter *padapter, u8 *pie, uint ie_len)
 {
 	u8 *p, max_ampdu_sz;
@@ -2332,7 +2332,7 @@ void rtw_update_ht_cap(struct adapter *padapter, u8 *pie, uint ie_len)
 			else
 				pmlmeinfo->HT_caps.u.HT_cap_element.MCS_rate[i] &= MCS_rate_2R[i];
 		}
-		/* switch to the 40M Hz mode accoring to the AP */
+		/* switch to the 40M Hz mode according to the AP */
 		pmlmeext->cur_bwmode = HT_CHANNEL_WIDTH_40;
 		switch ((pmlmeinfo->HT_info.infos[0] & 0x3)) {
 		case HT_EXTCHNL_OFFSET_UPPER:
diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
index 4b2eb8e9b562..9982dd0e2060 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
@@ -2349,7 +2349,7 @@ static void issue_p2p_GO_response(struct adapter *padapter, u8 *raddr, u8 *frame
 	if (rtw_p2p_chk_role(pwdinfo, P2P_ROLE_CLIENT)) {
 		/*	Commented by Albert 2011/03/08 */
 		/*	According to the P2P specification */
-		/*	if the sending device will be client, the P2P Capability should be reserved of group negotation response frame */
+		/*	if the sending device will be client, the P2P Capability should be reserved of group negotiation response frame */
 		p2pie[p2pielen++] = 0;
 	} else {
 		/*	Be group owner or meet the error case */
@@ -6698,7 +6698,7 @@ u8 collect_bss_info(struct adapter *padapter, union recv_frame *precv_frame, str
 		}
 	}
 
-	/*  mark bss info receving from nearby channel as SignalQuality 101 */
+	/*  mark bss info receiving from nearby channel as SignalQuality 101 */
 	if (bssid->Configuration.DSConfig != rtw_get_oper_ch(padapter))
 		bssid->PhyInfo.SignalQuality = 101;
 	return _SUCCESS;
@@ -8110,7 +8110,7 @@ u8 sitesurvey_cmd_hdl(struct adapter *padapter, u8 *pbuf)
 		Save_DM_Func_Flag(padapter);
 		Switch_DM_Func(padapter, DYNAMIC_FUNC_DISABLE, false);
 
-		/* config the initial gain under scaning, need to write the BB registers */
+		/* config the initial gain under scanning, need to write the BB registers */
 #ifdef CONFIG_88EU_P2P
 		if (rtw_p2p_chk_state(pwdinfo, P2P_STATE_NONE))
 			initialgain = 0x1E;
diff --git a/drivers/staging/rtl8188eu/core/rtw_security.c b/drivers/staging/rtl8188eu/core/rtw_security.c
index 0f076d0cb5f8..e08845729772 100644
--- a/drivers/staging/rtl8188eu/core/rtw_security.c
+++ b/drivers/staging/rtl8188eu/core/rtw_security.c
@@ -916,7 +916,7 @@ _func_enter_;
 			add1b[i] = 0x00;
 	}
 
-	swap_halfs[0] = in[2];    /* Swap halfs */
+	swap_halfs[0] = in[2];    /* Swap halves */
 	swap_halfs[1] = in[3];
 	swap_halfs[2] = in[0];
 	swap_halfs[3] = in[1];
-- 
cgit 


From 0e4f66b448c650851b1e16cae08f9700e403c341 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 26 Sep 2013 08:35:49 +0900
Subject: staging: dgnc: Remove casting the return value which is a void
 pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

CC: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgnc/dgnc_driver.c |  4 ++--
 drivers/staging/dgnc/dgnc_sysfs.c  | 22 +++++++++++-----------
 2 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c
index 3c5475901212..c398193e9b85 100644
--- a/drivers/staging/dgnc/dgnc_driver.c
+++ b/drivers/staging/dgnc/dgnc_driver.c
@@ -487,7 +487,7 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
 
 	/* get the board structure and prep it */
 	brd = dgnc_Board[dgnc_NumBoards] =
-	(struct dgnc_board *) kzalloc(sizeof(struct dgnc_board), GFP_KERNEL);
+		kzalloc(sizeof(struct dgnc_board), GFP_KERNEL);
 	if (!brd) {
 		APR(("memory allocation for board structure failed\n"));
 		return -ENOMEM;
@@ -495,7 +495,7 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
 
 	/* make a temporary message buffer for the boot messages */
 	brd->msgbuf = brd->msgbuf_head =
-		(char *) kzalloc(sizeof(char) * 8192, GFP_KERNEL);
+		kzalloc(sizeof(char) * 8192, GFP_KERNEL);
 	if (!brd->msgbuf) {
 		kfree(brd);
 		APR(("memory allocation for board msgbuf failed\n"));
diff --git a/drivers/staging/dgnc/dgnc_sysfs.c b/drivers/staging/dgnc/dgnc_sysfs.c
index 5834e0c17ee0..946230c23487 100644
--- a/drivers/staging/dgnc/dgnc_sysfs.c
+++ b/drivers/staging/dgnc/dgnc_sysfs.c
@@ -433,7 +433,7 @@ static ssize_t dgnc_tty_state_show(struct device *d, struct device_attribute *at
 
 	if (!d)
 		return 0;
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
 		return 0;
 	ch = un->un_ch;
@@ -458,7 +458,7 @@ static ssize_t dgnc_tty_baud_show(struct device *d, struct device_attribute *att
 
 	if (!d)
 		return 0;
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
 		return 0;
 	ch = un->un_ch;
@@ -483,7 +483,7 @@ static ssize_t dgnc_tty_msignals_show(struct device *d, struct device_attribute
 
 	if (!d)
 		return 0;
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
 		return 0;
 	ch = un->un_ch;
@@ -517,7 +517,7 @@ static ssize_t dgnc_tty_iflag_show(struct device *d, struct device_attribute *at
 
 	if (!d)
 		return 0;
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
 		return 0;
 	ch = un->un_ch;
@@ -542,7 +542,7 @@ static ssize_t dgnc_tty_cflag_show(struct device *d, struct device_attribute *at
 
 	if (!d)
 		return 0;
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
 		return 0;
 	ch = un->un_ch;
@@ -567,7 +567,7 @@ static ssize_t dgnc_tty_oflag_show(struct device *d, struct device_attribute *at
 
 	if (!d)
 		return 0;
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
 		return 0;
 	ch = un->un_ch;
@@ -592,7 +592,7 @@ static ssize_t dgnc_tty_lflag_show(struct device *d, struct device_attribute *at
 
 	if (!d)
 		return 0;
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
 		return 0;
 	ch = un->un_ch;
@@ -617,7 +617,7 @@ static ssize_t dgnc_tty_digi_flag_show(struct device *d, struct device_attribute
 
 	if (!d)
 		return 0;
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
 		return 0;
 	ch = un->un_ch;
@@ -642,7 +642,7 @@ static ssize_t dgnc_tty_rxcount_show(struct device *d, struct device_attribute *
 
 	if (!d)
 		return 0;
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
 		return 0;
 	ch = un->un_ch;
@@ -667,7 +667,7 @@ static ssize_t dgnc_tty_txcount_show(struct device *d, struct device_attribute *
 
 	if (!d)
 		return 0;
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
 		return 0;
 	ch = un->un_ch;
@@ -692,7 +692,7 @@ static ssize_t dgnc_tty_name_show(struct device *d, struct device_attribute *att
 
 	if (!d)
 		return 0;
-	un = (struct un_t *) dev_get_drvdata(d);
+	un = dev_get_drvdata(d);
 	if (!un || un->magic != DGNC_UNIT_MAGIC)
 		return 0;
 	ch = un->un_ch;
-- 
cgit 


From 5cb404d9272430e8a19c5d767885c63c6f1bfd17 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 25 Sep 2013 15:34:47 -0700
Subject: staging: comedi: pcl726: convert boardinfo declaration to C99 format

Convert the boardinfo declaration to C99 format to make it less error
prone and easier to maintain.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl726.c | 76 ++++++++++++++++++++++++++-------
 1 file changed, 61 insertions(+), 15 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index 32fb57a7fa26..d1e1e5e1e996 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -119,21 +119,67 @@ struct pcl726_board {
 };
 
 static const struct pcl726_board boardtypes[] = {
-	{"pcl726", 6, 6, 0x0000, PCL726_SIZE, 1,
-	 PCL726_DI_HI, PCL726_DI_LO, PCL726_DO_HI, PCL726_DO_LO,
-	 &rangelist_726[0],},
-	{"pcl727", 12, 4, 0x0000, PCL727_SIZE, 1,
-	 PCL727_DI_HI, PCL727_DI_LO, PCL727_DO_HI, PCL727_DO_LO,
-	 &rangelist_727[0],},
-	{"pcl728", 2, 6, 0x0000, PCL728_SIZE, 0,
-	 0, 0, 0, 0,
-	 &rangelist_728[0],},
-	{"acl6126", 6, 5, 0x96e8, PCL726_SIZE, 1,
-	 PCL726_DI_HI, PCL726_DI_LO, PCL726_DO_HI, PCL726_DO_LO,
-	 &rangelist_726[0],},
-	{"acl6128", 2, 6, 0x0000, PCL728_SIZE, 0,
-	 0, 0, 0, 0,
-	 &rangelist_728[0],},
+	{
+		.name		= "pcl726",
+		.n_aochan	= 6,
+		.num_of_ranges	= 6,
+		.IRQbits	= 0x0000,
+		.io_range	= PCL726_SIZE,
+		.have_dio	= 1,
+		.di_hi		= PCL726_DI_HI,
+		.di_lo		= PCL726_DI_LO,
+		.do_hi		= PCL726_DO_HI,
+		.do_lo		= PCL726_DO_LO,
+		.range_type_list = &rangelist_726[0],
+	}, {
+		.name		= "pcl727",
+		.n_aochan	= 12,
+		.num_of_ranges	= 4,
+		.IRQbits	= 0x0000,
+		.io_range	= PCL727_SIZE,
+		.have_dio	= 1,
+		.di_hi		= PCL727_DI_HI,
+		.di_lo		= PCL727_DI_LO,
+		.do_hi		= PCL727_DO_HI,
+		.do_lo		= PCL727_DO_LO,
+		.range_type_list = &rangelist_727[0],
+	}, {
+		.name		= "pcl728",
+		.n_aochan	= 2,
+		.num_of_ranges	= 6,
+		.IRQbits	= 0x0000,
+		.io_range	= PCL728_SIZE,
+		.have_dio	= 0,
+		.di_hi		= 0,
+		.di_lo		= 0,
+		.do_hi		= 0,
+		.do_lo		= 0,
+		.range_type_list = &rangelist_728[0],
+	}, {
+		.name		= "acl6126",
+		.n_aochan	= 6,
+		.num_of_ranges	= 5,
+		.IRQbits	= 0x96e8,
+		.io_range	= PCL726_SIZE,
+		.have_dio	= 1,
+		.di_hi		= PCL726_DI_HI,
+		.di_lo		= PCL726_DI_LO,
+		.do_hi		= PCL726_DO_HI,
+		.do_lo		= PCL726_DO_LO,
+		.range_type_list = &rangelist_726[0],
+	}, {
+		.name		= "acl6128",
+		.n_aochan	= 2,
+		.num_of_ranges	= 6,
+		.IRQbits	= 0x0000,
+		.io_range	= PCL728_SIZE,
+		.have_dio	= 0,
+		.di_hi		= 0,
+		.di_lo		= 0,
+		.do_hi		= 0,
+		.do_lo		= 0,
+		.range_type_list = &rangelist_728[0],
+	},
 };
 
 struct pcl726_private {
-- 
cgit 


From 4916211615e21b1ae80632e57b6e0c8434b126fe Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 25 Sep 2013 15:35:06 -0700
Subject: staging: comedi: core: introduce comedi_chan_range_is_{bi,uni}polar()

Introduce two helper functions to check if a subdevice range_table_list
for a given channel/range is bipolar or unipolar.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/comedidev.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h
index bec227665e6a..6db099bdbc58 100644
--- a/drivers/staging/comedi/comedidev.h
+++ b/drivers/staging/comedi/comedidev.h
@@ -307,6 +307,20 @@ static inline bool comedi_range_is_unipolar(struct comedi_subdevice *s,
 	return s->range_table->range[range].min >= 0;
 }
 
+static inline bool comedi_chan_range_is_bipolar(struct comedi_subdevice *s,
+						unsigned int chan,
+						unsigned int range)
+{
+	return s->range_table_list[chan]->range[range].min < 0;
+}
+
+static inline bool comedi_chan_range_is_unipolar(struct comedi_subdevice *s,
+						 unsigned int chan,
+						 unsigned int range)
+{
+	return s->range_table_list[chan]->range[range].min >= 0;
+}
+
 /* munge between offset binary and two's complement values */
 static inline unsigned int comedi_offset_munge(struct comedi_subdevice *s,
 					       unsigned int val)
-- 
cgit 


From b4f58e1f68ae9192d6c3a7dffa09ac2f2ec41fe0 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 25 Sep 2013 15:35:26 -0700
Subject: staging: comedi: pcl726: remove 'bipolar' from the private data

These flags are set in the private data during the attach to indicate
if the range for each channel is bipolar or unipolar. Use the helper
function conedi_chan_range_is_bipolar() to determine this by checking
the range_table_list directly.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl726.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index d1e1e5e1e996..17a4095be11b 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -183,8 +183,6 @@ static const struct pcl726_board boardtypes[] = {
 };
 
 struct pcl726_private {
-
-	int bipolar[12];
 	const struct comedi_lrange *rangelist[12];
 	unsigned int ao_readback[12];
 };
@@ -193,14 +191,15 @@ static int pcl726_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s,
 			  struct comedi_insn *insn, unsigned int *data)
 {
 	struct pcl726_private *devpriv = dev->private;
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	unsigned int range = CR_RANGE(insn->chanspec);
 	int hi, lo;
 	int n;
-	int chan = CR_CHAN(insn->chanspec);
 
 	for (n = 0; n < insn->n; n++) {
 		lo = data[n] & 0xff;
 		hi = (data[n] >> 8) & 0xf;
-		if (devpriv->bipolar[chan])
+		if (comedi_chan_range_is_bipolar(s, chan, range))
 			hi ^= 0x8;
 		/*
 		 * the programming info did not say which order
@@ -279,10 +278,8 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (!devpriv)
 		return -ENOMEM;
 
-	for (i = 0; i < 12; i++) {
-		devpriv->bipolar[i] = 0;
+	for (i = 0; i < 12; i++)
 		devpriv->rangelist[i] = &range_unknown;
-	}
 
 #ifdef ACL6126_IRQ
 	irq = 0;
@@ -339,9 +336,6 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			j = 0;
 		}
 		devpriv->rangelist[i] = board->range_type_list[j];
-		if (devpriv->rangelist[i]->range[0].min ==
-		    -devpriv->rangelist[i]->range[0].max)
-			devpriv->bipolar[i] = 1;	/* bipolar range */
 	}
 
 	s = &dev->subdevices[1];
-- 
cgit 


From 1821e389ab651c63bc0d9370780be81c19a7c90c Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 25 Sep 2013 15:35:50 -0700
Subject: staging: comedi: pcl726: tidy up pcl726_ao_insn()

For aesthetics, rename the function to help with greps.

The offset binary value from the core should be saved for read back.
Move the saving of the value in the private data so it occurs before
the value is possibly munged for bipolar outputs.

Use the comedi_offset_munge() helper to munge the offset binary value
to two's complement for bipolar outputs.

According to the November 2011 users manual, the write order must be
MSB them LSB. Update the comment.

Modify the register map defines to handle the channel offset calculation.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl726.c | 40 ++++++++++++++++-----------------
 1 file changed, 20 insertions(+), 20 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index 17a4095be11b..fa14f3e90f8a 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -71,8 +71,8 @@ Interrupts are not supported.
 #define PCL727_SIZE 32
 #define PCL728_SIZE 8
 
-#define PCL726_DAC0_HI 0
-#define PCL726_DAC0_LO 1
+#define PCL726_AO_MSB_REG(x)	(0x00 + ((x) * 2))
+#define PCL726_AO_LSB_REG(x)	(0x01 + ((x) * 2))
 
 #define PCL726_DO_HI 12
 #define PCL726_DO_LO 13
@@ -187,31 +187,31 @@ struct pcl726_private {
 	unsigned int ao_readback[12];
 };
 
-static int pcl726_ao_insn(struct comedi_device *dev, struct comedi_subdevice *s,
-			  struct comedi_insn *insn, unsigned int *data)
+static int pcl726_ao_insn_write(struct comedi_device *dev,
+				struct comedi_subdevice *s,
+				struct comedi_insn *insn,
+				unsigned int *data)
 {
 	struct pcl726_private *devpriv = dev->private;
 	unsigned int chan = CR_CHAN(insn->chanspec);
 	unsigned int range = CR_RANGE(insn->chanspec);
-	int hi, lo;
-	int n;
+	unsigned int val;
+	int i;
+
+	for (i = 0; i < insn->n; i++) {
+		val = data[i];
+		devpriv->ao_readback[chan] = val;
 
-	for (n = 0; n < insn->n; n++) {
-		lo = data[n] & 0xff;
-		hi = (data[n] >> 8) & 0xf;
+		/* bipolar data to the DAC is two's complement */
 		if (comedi_chan_range_is_bipolar(s, chan, range))
-			hi ^= 0x8;
-		/*
-		 * the programming info did not say which order
-		 * to write bytes.  switch the order of the next
-		 * two lines if you get glitches.
-		 */
-		outb(hi, dev->iobase + PCL726_DAC0_HI + 2 * chan);
-		outb(lo, dev->iobase + PCL726_DAC0_LO + 2 * chan);
-		devpriv->ao_readback[chan] = data[n];
+			val = comedi_offset_munge(s, val);
+
+		/* order is important, MSB then LSB */
+		outb((val >> 8) & 0xff, dev->iobase + PCL726_AO_MSB_REG(chan));
+		outb(val & 0xff, dev->iobase + PCL726_AO_LSB_REG(chan));
 	}
 
-	return n;
+	return insn->n;
 }
 
 static int pcl726_ao_insn_read(struct comedi_device *dev,
@@ -322,7 +322,7 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->n_chan = board->n_aochan;
 	s->maxdata = 0xfff;
 	s->len_chanlist = 1;
-	s->insn_write = pcl726_ao_insn;
+	s->insn_write = pcl726_ao_insn_write;
 	s->insn_read = pcl726_ao_insn_read;
 	s->range_table_list = devpriv->rangelist;
 	for (i = 0; i < board->n_aochan; i++) {
-- 
cgit 


From 5ec786764a2f4002188126f454a40cfdeedd5c9b Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 25 Sep 2013 15:36:13 -0700
Subject: staging: comedi: pcl726: tidy up pcl726_ao_insn_read()

Tidy up this function to follow the normal form for analog output
read back functions.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl726.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index fa14f3e90f8a..492d28929f54 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -216,15 +216,17 @@ static int pcl726_ao_insn_write(struct comedi_device *dev,
 
 static int pcl726_ao_insn_read(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
+			       struct comedi_insn *insn,
+			       unsigned int *data)
 {
 	struct pcl726_private *devpriv = dev->private;
-	int chan = CR_CHAN(insn->chanspec);
-	int n;
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	int i;
+
+	for (i = 0; i < insn->n; i++)
+		data[i] = devpriv->ao_readback[chan];
 
-	for (n = 0; n < insn->n; n++)
-		data[n] = devpriv->ao_readback[chan];
-	return n;
+	return insn->n;
 }
 
 static int pcl726_di_insn_bits(struct comedi_device *dev,
-- 
cgit 


From 87d9bc40bce16c09ac75acd5c8dc3607a45132bd Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 25 Sep 2013 15:36:36 -0700
Subject: staging: comedi: pcl726: remove all '= 0' boardinfo

Remove all the '= 0' entries in the boardinfo. They will default to 0.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl726.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index 492d28929f54..a9ef1df10426 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -123,7 +123,6 @@ static const struct pcl726_board boardtypes[] = {
 		.name		= "pcl726",
 		.n_aochan	= 6,
 		.num_of_ranges	= 6,
-		.IRQbits	= 0x0000,
 		.io_range	= PCL726_SIZE,
 		.have_dio	= 1,
 		.di_hi		= PCL726_DI_HI,
@@ -135,7 +134,6 @@ static const struct pcl726_board boardtypes[] = {
 		.name		= "pcl727",
 		.n_aochan	= 12,
 		.num_of_ranges	= 4,
-		.IRQbits	= 0x0000,
 		.io_range	= PCL727_SIZE,
 		.have_dio	= 1,
 		.di_hi		= PCL727_DI_HI,
@@ -147,13 +145,7 @@ static const struct pcl726_board boardtypes[] = {
 		.name		= "pcl728",
 		.n_aochan	= 2,
 		.num_of_ranges	= 6,
-		.IRQbits	= 0x0000,
 		.io_range	= PCL728_SIZE,
-		.have_dio	= 0,
-		.di_hi		= 0,
-		.di_lo		= 0,
-		.do_hi		= 0,
-		.do_lo		= 0,
 		.range_type_list = &rangelist_728[0],
 	}, {
 		.name		= "acl6126",
@@ -171,13 +163,7 @@ static const struct pcl726_board boardtypes[] = {
 		.name		= "acl6128",
 		.n_aochan	= 2,
 		.num_of_ranges	= 6,
-		.IRQbits	= 0x0000,
 		.io_range	= PCL728_SIZE,
-		.have_dio	= 0,
-		.di_hi		= 0,
-		.di_lo		= 0,
-		.do_hi		= 0,
-		.do_lo		= 0,
 		.range_type_list = &rangelist_728[0],
 	},
 };
-- 
cgit 


From fff46207245cd9e39c05b638afaee2478e64914b Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 25 Sep 2013 15:36:57 -0700
Subject: staging: comedi: pcl726: enable the interrupt support code

Tidy up and enable the interrupt support code for the external trigger
source interrupt on the ACL-6126 board.

The interrupt handler is currently just a stub function. Once the async
command support is added this function will be completed.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl726.c | 49 ++++++++++++---------------------
 1 file changed, 17 insertions(+), 32 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index a9ef1df10426..bcad27b1950e 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -63,9 +63,9 @@ Interrupts are not supported.
 */
 
 #include <linux/module.h>
-#include "../comedidev.h"
+#include <linux/interrupt.h>
 
-#undef ACL6126_IRQ		/* no interrupt support (yet) */
+#include "../comedidev.h"
 
 #define PCL726_SIZE 16
 #define PCL727_SIZE 32
@@ -173,6 +173,11 @@ struct pcl726_private {
 	unsigned int ao_readback[12];
 };
 
+static irqreturn_t pcl818_interrupt(int irq, void *d)
+{
+	return IRQ_HANDLED;
+}
+
 static int pcl726_ao_insn_write(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				struct comedi_insn *insn,
@@ -254,9 +259,6 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	struct pcl726_private *devpriv;
 	struct comedi_subdevice *s;
 	int ret, i;
-#ifdef ACL6126_IRQ
-	unsigned int irq;
-#endif
 
 	ret = comedi_request_region(dev, it->options[0], board->io_range);
 	if (ret)
@@ -269,36 +271,19 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	for (i = 0; i < 12; i++)
 		devpriv->rangelist[i] = &range_unknown;
 
-#ifdef ACL6126_IRQ
-	irq = 0;
-	if (boardtypes[board].IRQbits != 0) {	/* board support IRQ */
-		irq = it->options[1];
-		devpriv->first_chan = 2;
-		if (irq) {	/* we want to use IRQ */
-			if (((1 << irq) & boardtypes[board].IRQbits) == 0) {
-				printk(KERN_WARNING
-					", IRQ %d is out of allowed range,"
-					" DISABLING IT", irq);
-				irq = 0;	/* Bad IRQ */
-			} else {
-				if (request_irq(irq, interrupt_pcl818, 0,
-						dev->board_name, dev)) {
-					printk(KERN_WARNING
-						", unable to allocate IRQ %d,"
-						" DISABLING IT", irq);
-					irq = 0;	/* Can't use IRQ */
-				} else {
-					printk(", irq=%d", irq);
-				}
-			}
+	/*
+	 * Hook up the external trigger source interrupt only if the
+	 * user config option is valid and the board supports interrupts.
+	 */
+	if (it->options[1] && (board->IRQbits & (1 << it->options[1]))) {
+		ret = request_irq(it->options[1], pcl818_interrupt, 0,
+				  dev->board_name, dev);
+		if (ret == 0) {
+			/* External trigger source is from Pin-17 of CN3 */
+			dev->irq = it->options[1];
 		}
 	}
 
-	dev->irq = irq;
-#endif
-
-	printk("\n");
-
 	ret = comedi_alloc_subdevices(dev, 3);
 	if (ret)
 		return ret;
-- 
cgit 


From 716343c43891dcb865bd9f2603e68804d3cc5660 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 25 Sep 2013 15:37:18 -0700
Subject: staging: comedi: pcl726: fix the analog output range_table_list
 initialization

The analog output channels use jumpers on the board to individually set
the range used. This driver uses the configuration options passed to the
(*attach) function to setup the analog output subdevice range_table_list
for each channel.

The configuration options should be 'it->options[2 + i]' for each channel 'i'
not '...[2 + 1]' for each channel. Fix the error and move the code so that
the range_table_list is setup before the subdevice is initialized.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl726.c | 25 ++++++++++---------------
 1 file changed, 10 insertions(+), 15 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index bcad27b1950e..7952d8754449 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -268,9 +268,6 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (!devpriv)
 		return -ENOMEM;
 
-	for (i = 0; i < 12; i++)
-		devpriv->rangelist[i] = &range_unknown;
-
 	/*
 	 * Hook up the external trigger source interrupt only if the
 	 * user config option is valid and the board supports interrupts.
@@ -284,6 +281,16 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		}
 	}
 
+	/* setup the per-channel analog output range_table_list */
+	for (i = 0; i < 12; i++) {
+		unsigned int opt = it->options[2 + i];
+
+		if (opt < board->num_of_ranges && i < board->n_aochan)
+			devpriv->rangelist[i] = board->range_type_list[opt];
+		else
+			devpriv->rangelist[i] = &range_unknown;
+	}
+
 	ret = comedi_alloc_subdevices(dev, 3);
 	if (ret)
 		return ret;
@@ -298,18 +305,6 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->insn_write = pcl726_ao_insn_write;
 	s->insn_read = pcl726_ao_insn_read;
 	s->range_table_list = devpriv->rangelist;
-	for (i = 0; i < board->n_aochan; i++) {
-		int j;
-
-		j = it->options[2 + 1];
-		if ((j < 0) || (j >= board->num_of_ranges)) {
-			printk
-			    ("Invalid range for channel %d! Must be 0<=%d<%d\n",
-			     i, j, board->num_of_ranges - 1);
-			j = 0;
-		}
-		devpriv->rangelist[i] = board->range_type_list[j];
-	}
 
 	s = &dev->subdevices[1];
 	/* di */
-- 
cgit 


From 47825a9b1b37b38cca1891e5393da4b13155f165 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 25 Sep 2013 15:37:43 -0700
Subject: staging: comedi: pcl726: tidy up pcl726_attach()

For aesthetics, add some whitespace to the subdevice initialization.

Only allocate, and initialize, the digital input and output subdevices
if the boardinfo indicates that they exist on the board.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl726.c | 69 +++++++++++++++------------------
 1 file changed, 31 insertions(+), 38 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index 7952d8754449..970d44d87b3a 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -253,12 +253,14 @@ static int pcl726_do_insn_bits(struct comedi_device *dev,
 	return insn->n;
 }
 
-static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
+static int pcl726_attach(struct comedi_device *dev,
+			 struct comedi_devconfig *it)
 {
 	const struct pcl726_board *board = comedi_board(dev);
 	struct pcl726_private *devpriv;
 	struct comedi_subdevice *s;
-	int ret, i;
+	int ret;
+	int i;
 
 	ret = comedi_request_region(dev, it->options[0], board->io_range);
 	if (ret)
@@ -291,47 +293,38 @@ static int pcl726_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 			devpriv->rangelist[i] = &range_unknown;
 	}
 
-	ret = comedi_alloc_subdevices(dev, 3);
+	ret = comedi_alloc_subdevices(dev, board->have_dio ? 3 : 1);
 	if (ret)
 		return ret;
 
+	/* Analog Output subdevice */
 	s = &dev->subdevices[0];
-	/* ao */
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
-	s->n_chan = board->n_aochan;
-	s->maxdata = 0xfff;
-	s->len_chanlist = 1;
-	s->insn_write = pcl726_ao_insn_write;
-	s->insn_read = pcl726_ao_insn_read;
+	s->type		= COMEDI_SUBD_AO;
+	s->subdev_flags	= SDF_WRITABLE | SDF_GROUND;
+	s->n_chan	= board->n_aochan;
+	s->maxdata	= 0x0fff;
 	s->range_table_list = devpriv->rangelist;
-
-	s = &dev->subdevices[1];
-	/* di */
-	if (!board->have_dio) {
-		s->type = COMEDI_SUBD_UNUSED;
-	} else {
-		s->type = COMEDI_SUBD_DI;
-		s->subdev_flags = SDF_READABLE | SDF_GROUND;
-		s->n_chan = 16;
-		s->maxdata = 1;
-		s->len_chanlist = 1;
-		s->insn_bits = pcl726_di_insn_bits;
-		s->range_table = &range_digital;
-	}
-
-	s = &dev->subdevices[2];
-	/* do */
-	if (!board->have_dio) {
-		s->type = COMEDI_SUBD_UNUSED;
-	} else {
-		s->type = COMEDI_SUBD_DO;
-		s->subdev_flags = SDF_WRITABLE | SDF_GROUND;
-		s->n_chan = 16;
-		s->maxdata = 1;
-		s->len_chanlist = 1;
-		s->insn_bits = pcl726_do_insn_bits;
-		s->range_table = &range_digital;
+	s->insn_write	= pcl726_ao_insn_write;
+	s->insn_read	= pcl726_ao_insn_read;
+
+	if (board->have_dio) {
+		/* Digital Input subdevice */
+		s = &dev->subdevices[1];
+		s->type		= COMEDI_SUBD_DI;
+		s->subdev_flags	= SDF_READABLE;
+		s->n_chan	= 16;
+		s->maxdata	= 1;
+		s->insn_bits	= pcl726_di_insn_bits;
+		s->range_table	= &range_digital;
+
+		/* Digital Output subdevice */
+		s = &dev->subdevices[2];
+		s->type		= COMEDI_SUBD_DO;
+		s->subdev_flags	= SDF_WRITABLE;
+		s->n_chan	= 16;
+		s->maxdata	= 1;
+		s->insn_bits	= pcl726_do_insn_bits;
+		s->range_table	= &range_digital;
 	}
 
 	return 0;
-- 
cgit 


From 3f4d0101825bd11b5c8865bb77993924356315fa Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 25 Sep 2013 15:38:55 -0700
Subject: staging: comedi: pcl726: remove digital i/o register offsets from
 boardinfo

The PCL-727 board uses different register offsets for the digital input and
output ports. Instead of having all the register offsets in the boardinfo,
replace them with a simple bit-field flag, 'is_pcl727'. Use that flag in the
(*insn_bits) functions to determine what registers need to be used.

To save a bit of space, change the 'have_dio' flag in the boardinfo to a
bit-field.

For aesthetics, rename and tidy up the register map defines.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl726.c | 68 +++++++++++++++++----------------
 1 file changed, 35 insertions(+), 33 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index 970d44d87b3a..da5df5a79b67 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -73,16 +73,15 @@ Interrupts are not supported.
 
 #define PCL726_AO_MSB_REG(x)	(0x00 + ((x) * 2))
 #define PCL726_AO_LSB_REG(x)	(0x01 + ((x) * 2))
+#define PCL726_DO_MSB_REG	0x0c
+#define PCL726_DO_LSB_REG	0x0d
+#define PCL726_DI_MSB_REG	0x0e
+#define PCL726_DI_LSB_REG	0x0f
 
-#define PCL726_DO_HI 12
-#define PCL726_DO_LO 13
-#define PCL726_DI_HI 14
-#define PCL726_DI_LO 15
-
-#define PCL727_DO_HI 24
-#define PCL727_DO_LO 25
-#define PCL727_DI_HI  0
-#define PCL727_DI_LO  1
+#define PCL727_DI_MSB_REG	0x00
+#define PCL727_DI_LSB_REG	0x01
+#define PCL727_DO_MSB_REG	0x18
+#define PCL727_DO_LSB_REG	0x19
 
 static const struct comedi_lrange *const rangelist_726[] = {
 	&range_unipolar5, &range_unipolar10,
@@ -109,11 +108,8 @@ struct pcl726_board {
 	int num_of_ranges;	/*  num of ranges */
 	unsigned int IRQbits;	/*  allowed interrupts */
 	unsigned int io_range;	/*  len of IO space */
-	char have_dio;		/*  1=card have DI/DO ports */
-	int di_hi;		/*  ports for DI/DO operations */
-	int di_lo;
-	int do_hi;
-	int do_lo;
+	unsigned int have_dio:1;
+	unsigned int is_pcl727:1;
 	const struct comedi_lrange *const *range_type_list;
 	/*  list of supported ranges */
 };
@@ -125,10 +121,6 @@ static const struct pcl726_board boardtypes[] = {
 		.num_of_ranges	= 6,
 		.io_range	= PCL726_SIZE,
 		.have_dio	= 1,
-		.di_hi		= PCL726_DI_HI,
-		.di_lo		= PCL726_DI_LO,
-		.do_hi		= PCL726_DO_HI,
-		.do_lo		= PCL726_DO_LO,
 		.range_type_list = &rangelist_726[0],
 	}, {
 		.name		= "pcl727",
@@ -136,10 +128,7 @@ static const struct pcl726_board boardtypes[] = {
 		.num_of_ranges	= 4,
 		.io_range	= PCL727_SIZE,
 		.have_dio	= 1,
-		.di_hi		= PCL727_DI_HI,
-		.di_lo		= PCL727_DI_LO,
-		.do_hi		= PCL727_DO_HI,
-		.do_lo		= PCL727_DO_LO,
+		.is_pcl727	= 1,
 		.range_type_list = &rangelist_727[0],
 	}, {
 		.name		= "pcl728",
@@ -154,10 +143,6 @@ static const struct pcl726_board boardtypes[] = {
 		.IRQbits	= 0x96e8,
 		.io_range	= PCL726_SIZE,
 		.have_dio	= 1,
-		.di_hi		= PCL726_DI_HI,
-		.di_lo		= PCL726_DI_LO,
-		.do_hi		= PCL726_DO_HI,
-		.do_lo		= PCL726_DO_LO,
 		.range_type_list = &rangelist_726[0],
 	}, {
 		.name		= "acl6128",
@@ -222,12 +207,21 @@ static int pcl726_ao_insn_read(struct comedi_device *dev,
 
 static int pcl726_di_insn_bits(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
+			       struct comedi_insn *insn,
+			       unsigned int *data)
 {
 	const struct pcl726_board *board = comedi_board(dev);
+	unsigned int val;
 
-	data[1] = inb(dev->iobase + board->di_lo) |
-	    (inb(dev->iobase + board->di_hi) << 8);
+	if (board->is_pcl727) {
+		val = inb(dev->iobase + PCL727_DI_LSB_REG);
+		val |= (inb(dev->iobase + PCL727_DI_MSB_REG) << 8);
+	} else {
+		val = inb(dev->iobase + PCL726_DI_LSB_REG);
+		val |= (inb(dev->iobase + PCL726_DI_MSB_REG) << 8);
+	}
+
+	data[1] = val;
 
 	return insn->n;
 }
@@ -238,14 +232,22 @@ static int pcl726_do_insn_bits(struct comedi_device *dev,
 			       unsigned int *data)
 {
 	const struct pcl726_board *board = comedi_board(dev);
+	unsigned long io = dev->iobase;
 	unsigned int mask;
 
 	mask = comedi_dio_update_state(s, data);
 	if (mask) {
-		if (mask & 0x00ff)
-			outb(s->state & 0xff, dev->iobase + board->do_lo);
-		if (mask & 0xff00)
-			outb((s->state >> 8), dev->iobase + board->do_hi);
+		if (board->is_pcl727) {
+			if (mask & 0x00ff)
+				outb(s->state & 0xff, io + PCL727_DO_LSB_REG);
+			if (mask & 0xff00)
+				outb((s->state >> 8), io + PCL727_DO_MSB_REG);
+		} else {
+			if (mask & 0x00ff)
+				outb(s->state & 0xff, io + PCL726_DO_LSB_REG);
+			if (mask & 0xff00)
+				outb((s->state >> 8), io + PCL726_DO_MSB_REG);
+		}
 	}
 
 	data[1] = s->state;
-- 
cgit 


From 08f91d18a48ea7cbf54b7f5132a643ba839d671b Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 25 Sep 2013 15:39:48 -0700
Subject: staging: comedi: pcl726: tidy up the comedi_lrange code

For aesthetics, declare the comedi_lrange tables with one entry per line.

Since the range data in the boardinfo is only for the analog outputs,
rename the variables to make this clearer.

Use ARRAY_SIZE to initialize the 'ao_num_ranges' member instead of open
coding the value.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl726.c | 51 ++++++++++++++++++---------------
 1 file changed, 28 insertions(+), 23 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index da5df5a79b67..41f973394efa 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -84,72 +84,77 @@ Interrupts are not supported.
 #define PCL727_DO_LSB_REG	0x19
 
 static const struct comedi_lrange *const rangelist_726[] = {
-	&range_unipolar5, &range_unipolar10,
-	&range_bipolar5, &range_bipolar10,
-	&range_4_20mA, &range_unknown
+	&range_unipolar5,
+	&range_unipolar10,
+	&range_bipolar5,
+	&range_bipolar10,
+	&range_4_20mA,
+	&range_unknown
 };
 
 static const struct comedi_lrange *const rangelist_727[] = {
-	&range_unipolar5, &range_unipolar10,
+	&range_unipolar5,
+	&range_unipolar10,
 	&range_bipolar5,
 	&range_4_20mA
 };
 
 static const struct comedi_lrange *const rangelist_728[] = {
-	&range_unipolar5, &range_unipolar10,
-	&range_bipolar5, &range_bipolar10,
-	&range_4_20mA, &range_0_20mA
+	&range_unipolar5,
+	&range_unipolar10,
+	&range_bipolar5,
+	&range_bipolar10,
+	&range_4_20mA,
+	&range_0_20mA
 };
 
 struct pcl726_board {
-
 	const char *name;	/*  driver name */
 	int n_aochan;		/*  num of D/A chans */
-	int num_of_ranges;	/*  num of ranges */
 	unsigned int IRQbits;	/*  allowed interrupts */
 	unsigned int io_range;	/*  len of IO space */
 	unsigned int have_dio:1;
 	unsigned int is_pcl727:1;
-	const struct comedi_lrange *const *range_type_list;
-	/*  list of supported ranges */
+	const struct comedi_lrange *const *ao_ranges;
+	int ao_num_ranges;
 };
 
 static const struct pcl726_board boardtypes[] = {
 	{
 		.name		= "pcl726",
 		.n_aochan	= 6,
-		.num_of_ranges	= 6,
 		.io_range	= PCL726_SIZE,
 		.have_dio	= 1,
-		.range_type_list = &rangelist_726[0],
+		.ao_ranges	= &rangelist_726[0],
+		.ao_num_ranges	= ARRAY_SIZE(rangelist_726),
 	}, {
 		.name		= "pcl727",
 		.n_aochan	= 12,
-		.num_of_ranges	= 4,
 		.io_range	= PCL727_SIZE,
 		.have_dio	= 1,
 		.is_pcl727	= 1,
-		.range_type_list = &rangelist_727[0],
+		.ao_ranges	= &rangelist_727[0],
+		.ao_num_ranges	= ARRAY_SIZE(rangelist_727),
 	}, {
 		.name		= "pcl728",
 		.n_aochan	= 2,
-		.num_of_ranges	= 6,
 		.io_range	= PCL728_SIZE,
-		.range_type_list = &rangelist_728[0],
+		.ao_num_ranges	= ARRAY_SIZE(rangelist_728),
+		.ao_ranges	= &rangelist_728[0],
 	}, {
 		.name		= "acl6126",
 		.n_aochan	= 6,
-		.num_of_ranges	= 5,
 		.IRQbits	= 0x96e8,
 		.io_range	= PCL726_SIZE,
 		.have_dio	= 1,
-		.range_type_list = &rangelist_726[0],
+		.ao_num_ranges	= ARRAY_SIZE(rangelist_726),
+		.ao_ranges	= &rangelist_726[0],
 	}, {
 		.name		= "acl6128",
 		.n_aochan	= 2,
-		.num_of_ranges	= 6,
 		.io_range	= PCL728_SIZE,
-		.range_type_list = &rangelist_728[0],
+		.ao_num_ranges	= ARRAY_SIZE(rangelist_728),
+		.ao_ranges	= &rangelist_728[0],
 	},
 };
 
@@ -289,8 +294,8 @@ static int pcl726_attach(struct comedi_device *dev,
 	for (i = 0; i < 12; i++) {
 		unsigned int opt = it->options[2 + i];
 
-		if (opt < board->num_of_ranges && i < board->n_aochan)
-			devpriv->rangelist[i] = board->range_type_list[opt];
+		if (opt < board->ao_num_ranges && i < board->n_aochan)
+			devpriv->rangelist[i] = board->ao_ranges[opt];
 		else
 			devpriv->rangelist[i] = &range_unknown;
 	}
-- 
cgit 


From 310923b7de44cb68b9d8f1d8a4a7f915872cd18c Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 25 Sep 2013 15:40:08 -0700
Subject: staging: comedi: pcl726: rename boardinfo 'IRQbits'

Rename this CamelCase variable in the boardinfo.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl726.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index 41f973394efa..ecaa7d31404e 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -111,8 +111,8 @@ static const struct comedi_lrange *const rangelist_728[] = {
 struct pcl726_board {
 	const char *name;	/*  driver name */
 	int n_aochan;		/*  num of D/A chans */
-	unsigned int IRQbits;	/*  allowed interrupts */
 	unsigned int io_range;	/*  len of IO space */
+	unsigned int irq_mask;
 	unsigned int have_dio:1;
 	unsigned int is_pcl727:1;
 	const struct comedi_lrange *const *ao_ranges;
@@ -144,8 +144,8 @@ static const struct pcl726_board boardtypes[] = {
 	}, {
 		.name		= "acl6126",
 		.n_aochan	= 6,
-		.IRQbits	= 0x96e8,
 		.io_range	= PCL726_SIZE,
+		.irq_mask	= 0x96e8,
 		.have_dio	= 1,
 		.ao_num_ranges	= ARRAY_SIZE(rangelist_726),
 		.ao_ranges	= &rangelist_726[0],
@@ -281,7 +281,7 @@ static int pcl726_attach(struct comedi_device *dev,
 	 * Hook up the external trigger source interrupt only if the
 	 * user config option is valid and the board supports interrupts.
 	 */
-	if (it->options[1] && (board->IRQbits & (1 << it->options[1]))) {
+	if (it->options[1] && (board->irq_mask & (1 << it->options[1]))) {
 		ret = request_irq(it->options[1], pcl818_interrupt, 0,
 				  dev->board_name, dev);
 		if (ret == 0) {
-- 
cgit 


From 06b819eede3786bd52d4eb1893ba76208b0290bc Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 25 Sep 2013 15:40:29 -0700
Subject: staging: comedi: pcl726: remove unnecessary comments in boardinfo
 definition

The variable names provided enough information.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl726.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index ecaa7d31404e..7f55c09aab94 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -109,9 +109,9 @@ static const struct comedi_lrange *const rangelist_728[] = {
 };
 
 struct pcl726_board {
-	const char *name;	/*  driver name */
-	int n_aochan;		/*  num of D/A chans */
-	unsigned int io_range;	/*  len of IO space */
+	const char *name;
+	int n_aochan;
+	unsigned int io_range;
 	unsigned int irq_mask;
 	unsigned int have_dio:1;
 	unsigned int is_pcl727:1;
-- 
cgit 


From 16ee1e82a305f7b3ec9506178ac3a273eaceff7f Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 25 Sep 2013 15:40:57 -0700
Subject: staging: comedi: pcl726: remove the *_SIZE defines

The *_SIZE defines are only used to initialize the 'io_range' members in
the boardinfo. Remove the defines and just open code the values.

For aesthetics, change the type of the 'io_range' and rename it to better
match the 'len' parameter to comedi_request_region().

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl726.c | 22 +++++++++-------------
 1 file changed, 9 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index 7f55c09aab94..16f062a6ec1d 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -67,10 +67,6 @@ Interrupts are not supported.
 
 #include "../comedidev.h"
 
-#define PCL726_SIZE 16
-#define PCL727_SIZE 32
-#define PCL728_SIZE 8
-
 #define PCL726_AO_MSB_REG(x)	(0x00 + ((x) * 2))
 #define PCL726_AO_LSB_REG(x)	(0x01 + ((x) * 2))
 #define PCL726_DO_MSB_REG	0x0c
@@ -110,9 +106,9 @@ static const struct comedi_lrange *const rangelist_728[] = {
 
 struct pcl726_board {
 	const char *name;
-	int n_aochan;
-	unsigned int io_range;
+	unsigned long io_len;
 	unsigned int irq_mask;
+	int n_aochan;
 	unsigned int have_dio:1;
 	unsigned int is_pcl727:1;
 	const struct comedi_lrange *const *ao_ranges;
@@ -122,37 +118,37 @@ struct pcl726_board {
 static const struct pcl726_board boardtypes[] = {
 	{
 		.name		= "pcl726",
+		.io_len		= 0x10,
 		.n_aochan	= 6,
-		.io_range	= PCL726_SIZE,
 		.have_dio	= 1,
 		.ao_ranges	= &rangelist_726[0],
 		.ao_num_ranges	= ARRAY_SIZE(rangelist_726),
 	}, {
 		.name		= "pcl727",
+		.io_len		= 0x20,
 		.n_aochan	= 12,
-		.io_range	= PCL727_SIZE,
 		.have_dio	= 1,
 		.is_pcl727	= 1,
 		.ao_ranges	= &rangelist_727[0],
 		.ao_num_ranges	= ARRAY_SIZE(rangelist_727),
 	}, {
 		.name		= "pcl728",
+		.io_len		= 0x08,
 		.n_aochan	= 2,
-		.io_range	= PCL728_SIZE,
 		.ao_num_ranges	= ARRAY_SIZE(rangelist_728),
 		.ao_ranges	= &rangelist_728[0],
 	}, {
 		.name		= "acl6126",
-		.n_aochan	= 6,
-		.io_range	= PCL726_SIZE,
+		.io_len		= 0x10,
 		.irq_mask	= 0x96e8,
+		.n_aochan	= 6,
 		.have_dio	= 1,
 		.ao_num_ranges	= ARRAY_SIZE(rangelist_726),
 		.ao_ranges	= &rangelist_726[0],
 	}, {
 		.name		= "acl6128",
+		.io_len		= 0x08,
 		.n_aochan	= 2,
-		.io_range	= PCL728_SIZE,
 		.ao_num_ranges	= ARRAY_SIZE(rangelist_728),
 		.ao_ranges	= &rangelist_728[0],
 	},
@@ -269,7 +265,7 @@ static int pcl726_attach(struct comedi_device *dev,
 	int ret;
 	int i;
 
-	ret = comedi_request_region(dev, it->options[0], board->io_range);
+	ret = comedi_request_region(dev, it->options[0], board->io_len);
 	if (ret)
 		return ret;
 
-- 
cgit 


From fc93af5837b6db49ea07f9603c2536191894628d Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 25 Sep 2013 15:41:18 -0700
Subject: staging: comedi: pcl726: final tidy up of boardinfo

For aesthetics, rearrange the boardinfo struct definition a bit to give
it a bit of logical order.

Also, rename the 'n_aochan' member to it has better visual association
with the other analog output members.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl726.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index 16f062a6ec1d..b7b14aaea4b0 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -108,49 +108,49 @@ struct pcl726_board {
 	const char *name;
 	unsigned long io_len;
 	unsigned int irq_mask;
-	int n_aochan;
-	unsigned int have_dio:1;
-	unsigned int is_pcl727:1;
 	const struct comedi_lrange *const *ao_ranges;
 	int ao_num_ranges;
+	int ao_nchan;
+	unsigned int have_dio:1;
+	unsigned int is_pcl727:1;
 };
 
 static const struct pcl726_board boardtypes[] = {
 	{
 		.name		= "pcl726",
 		.io_len		= 0x10,
-		.n_aochan	= 6,
-		.have_dio	= 1,
 		.ao_ranges	= &rangelist_726[0],
 		.ao_num_ranges	= ARRAY_SIZE(rangelist_726),
+		.ao_nchan	= 6,
+		.have_dio	= 1,
 	}, {
 		.name		= "pcl727",
 		.io_len		= 0x20,
-		.n_aochan	= 12,
-		.have_dio	= 1,
-		.is_pcl727	= 1,
 		.ao_ranges	= &rangelist_727[0],
 		.ao_num_ranges	= ARRAY_SIZE(rangelist_727),
+		.ao_nchan	= 12,
+		.have_dio	= 1,
+		.is_pcl727	= 1,
 	}, {
 		.name		= "pcl728",
 		.io_len		= 0x08,
-		.n_aochan	= 2,
 		.ao_num_ranges	= ARRAY_SIZE(rangelist_728),
 		.ao_ranges	= &rangelist_728[0],
+		.ao_nchan	= 2,
 	}, {
 		.name		= "acl6126",
 		.io_len		= 0x10,
 		.irq_mask	= 0x96e8,
-		.n_aochan	= 6,
-		.have_dio	= 1,
 		.ao_num_ranges	= ARRAY_SIZE(rangelist_726),
 		.ao_ranges	= &rangelist_726[0],
+		.ao_nchan	= 6,
+		.have_dio	= 1,
 	}, {
 		.name		= "acl6128",
 		.io_len		= 0x08,
-		.n_aochan	= 2,
 		.ao_num_ranges	= ARRAY_SIZE(rangelist_728),
 		.ao_ranges	= &rangelist_728[0],
+		.ao_nchan	= 2,
 	},
 };
 
@@ -290,7 +290,7 @@ static int pcl726_attach(struct comedi_device *dev,
 	for (i = 0; i < 12; i++) {
 		unsigned int opt = it->options[2 + i];
 
-		if (opt < board->ao_num_ranges && i < board->n_aochan)
+		if (opt < board->ao_num_ranges && i < board->ao_nchan)
 			devpriv->rangelist[i] = board->ao_ranges[opt];
 		else
 			devpriv->rangelist[i] = &range_unknown;
@@ -304,7 +304,7 @@ static int pcl726_attach(struct comedi_device *dev,
 	s = &dev->subdevices[0];
 	s->type		= COMEDI_SUBD_AO;
 	s->subdev_flags	= SDF_WRITABLE | SDF_GROUND;
-	s->n_chan	= board->n_aochan;
+	s->n_chan	= board->ao_nchan;
 	s->maxdata	= 0x0fff;
 	s->range_table_list = devpriv->rangelist;
 	s->insn_write	= pcl726_ao_insn_write;
-- 
cgit 


From afee35c7a4bb4fb7f60ae27d4d248a2bb956f430 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 25 Sep 2013 15:41:40 -0700
Subject: staging: comedi: pcl726: add support for the external interrupt
 signal

The ACL-6126 board supports an external interrupt signal on pin 17 of
its I/O connector (CN3). Add a new subdevice to this driver to support
asynchronous commands with this input.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl726.c | 115 ++++++++++++++++++++++++++++++--
 1 file changed, 111 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index b7b14aaea4b0..6df6e097b301 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -67,6 +67,8 @@ Interrupts are not supported.
 
 #include "../comedidev.h"
 
+#include "comedi_fc.h"
+
 #define PCL726_AO_MSB_REG(x)	(0x00 + ((x) * 2))
 #define PCL726_AO_LSB_REG(x)	(0x01 + ((x) * 2))
 #define PCL726_DO_MSB_REG	0x0c
@@ -157,10 +159,94 @@ static const struct pcl726_board boardtypes[] = {
 struct pcl726_private {
 	const struct comedi_lrange *rangelist[12];
 	unsigned int ao_readback[12];
+	unsigned int cmd_running:1;
 };
 
+static int pcl818_intr_insn_bits(struct comedi_device *dev,
+				 struct comedi_subdevice *s,
+				 struct comedi_insn *insn,
+				 unsigned int *data)
+{
+	data[1] = 0;
+	return insn->n;
+}
+
+static int pcl818_intr_cmdtest(struct comedi_device *dev,
+			       struct comedi_subdevice *s,
+			       struct comedi_cmd *cmd)
+{
+	int err = 0;
+
+	/* Step 1 : check if triggers are trivially valid */
+
+	err |= cfc_check_trigger_src(&cmd->start_src, TRIG_NOW);
+	err |= cfc_check_trigger_src(&cmd->scan_begin_src, TRIG_EXT);
+	err |= cfc_check_trigger_src(&cmd->convert_src, TRIG_FOLLOW);
+	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
+	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_NONE);
+
+	if (err)
+		return 1;
+
+	/* Step 2a : make sure trigger sources are unique */
+	/* Step 2b : and mutually compatible */
+
+	if (err)
+		return 2;
+
+	/* Step 3: check if arguments are trivially valid */
+
+	err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
+	err |= cfc_check_trigger_arg_is(&cmd->scan_begin_arg, 0);
+	err |= cfc_check_trigger_arg_is(&cmd->convert_arg, 0);
+	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, 1);
+	err |= cfc_check_trigger_arg_is(&cmd->stop_arg, 0);
+
+	if (err)
+		return 3;
+
+	/* step 4: ignored */
+
+	if (err)
+		return 4;
+
+	return 0;
+}
+
+static int pcl818_intr_cmd(struct comedi_device *dev,
+			   struct comedi_subdevice *s)
+{
+	struct pcl726_private *devpriv = dev->private;
+
+	devpriv->cmd_running = 1;
+
+	return 0;
+}
+
+static int pcl818_intr_cancel(struct comedi_device *dev,
+			      struct comedi_subdevice *s)
+{
+	struct pcl726_private *devpriv = dev->private;
+
+	devpriv->cmd_running = 0;
+
+	return 0;
+}
+
 static irqreturn_t pcl818_interrupt(int irq, void *d)
 {
+	struct comedi_device *dev = d;
+	struct comedi_subdevice *s = dev->read_subdev;
+	struct pcl726_private *devpriv = dev->private;
+
+	if (devpriv->cmd_running) {
+		pcl818_intr_cancel(dev, s);
+
+		comedi_buf_put(s->async, 0);
+		s->async->events |= (COMEDI_CB_BLOCK | COMEDI_CB_EOS);
+		comedi_event(dev, s);
+	}
+
 	return IRQ_HANDLED;
 }
 
@@ -262,6 +348,7 @@ static int pcl726_attach(struct comedi_device *dev,
 	const struct pcl726_board *board = comedi_board(dev);
 	struct pcl726_private *devpriv;
 	struct comedi_subdevice *s;
+	int subdev;
 	int ret;
 	int i;
 
@@ -296,12 +383,17 @@ static int pcl726_attach(struct comedi_device *dev,
 			devpriv->rangelist[i] = &range_unknown;
 	}
 
-	ret = comedi_alloc_subdevices(dev, board->have_dio ? 3 : 1);
+	subdev = board->have_dio ? 3 : 1;
+	if (dev->irq)
+		subdev++;
+	ret = comedi_alloc_subdevices(dev, subdev);
 	if (ret)
 		return ret;
 
+	subdev = 0;
+
 	/* Analog Output subdevice */
-	s = &dev->subdevices[0];
+	s = &dev->subdevices[subdev++];
 	s->type		= COMEDI_SUBD_AO;
 	s->subdev_flags	= SDF_WRITABLE | SDF_GROUND;
 	s->n_chan	= board->ao_nchan;
@@ -312,7 +404,7 @@ static int pcl726_attach(struct comedi_device *dev,
 
 	if (board->have_dio) {
 		/* Digital Input subdevice */
-		s = &dev->subdevices[1];
+		s = &dev->subdevices[subdev++];
 		s->type		= COMEDI_SUBD_DI;
 		s->subdev_flags	= SDF_READABLE;
 		s->n_chan	= 16;
@@ -321,7 +413,7 @@ static int pcl726_attach(struct comedi_device *dev,
 		s->range_table	= &range_digital;
 
 		/* Digital Output subdevice */
-		s = &dev->subdevices[2];
+		s = &dev->subdevices[subdev++];
 		s->type		= COMEDI_SUBD_DO;
 		s->subdev_flags	= SDF_WRITABLE;
 		s->n_chan	= 16;
@@ -330,6 +422,21 @@ static int pcl726_attach(struct comedi_device *dev,
 		s->range_table	= &range_digital;
 	}
 
+	if (dev->irq) {
+		/* Digial Input subdevice - Interrupt support */
+		s = &dev->subdevices[subdev++];
+		dev->read_subdev = s;
+		s->type		= COMEDI_SUBD_DI;
+		s->subdev_flags	= SDF_READABLE | SDF_CMD_READ;
+		s->n_chan	= 1;
+		s->maxdata	= 1;
+		s->range_table	= &range_digital;
+		s->insn_bits	= pcl818_intr_insn_bits;
+		s->do_cmdtest	= pcl818_intr_cmdtest;
+		s->do_cmd	= pcl818_intr_cmd;
+		s->cancel	= pcl818_intr_cancel;
+	}
+
 	return 0;
 }
 
-- 
cgit 


From 96d6ed536f0eee0def63f85da3c7a922dbdafb4e Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 25 Sep 2013 15:41:58 -0700
Subject: staging: comedi: pcl726: tidy up multi-line comments

Tidy up the multi-line comments to follow the CodingStyle.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl726.c | 118 ++++++++++++++++----------------
 1 file changed, 58 insertions(+), 60 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index 6df6e097b301..059abc6ebde8 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -1,66 +1,64 @@
 /*
-    comedi/drivers/pcl726.c
-
-    hardware driver for Advantech cards:
-     card:   PCL-726, PCL-727, PCL-728
-     driver: pcl726,  pcl727,  pcl728
-    and for ADLink cards:
-     card:   ACL-6126, ACL-6128
-     driver: acl6126,  acl6128
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1998 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: pcl726
-Description: Advantech PCL-726 & compatibles
-Author: ds
-Status: untested
-Devices: [Advantech] PCL-726 (pcl726), PCL-727 (pcl727), PCL-728 (pcl728),
-  [ADLink] ACL-6126 (acl6126), ACL-6128 (acl6128)
-
-Interrupts are not supported.
-
-    Options for PCL-726:
-     [0] - IO Base
-     [2]...[7] - D/A output range for channel 1-6:
-		0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
-		4: 4-20mA, 5: unknown (external reference)
-
-    Options for PCL-727:
-     [0] - IO Base
-     [2]...[13] - D/A output range for channel 1-12:
-		0: 0-5V, 1: 0-10V, 2: +/-5V,
-		3: 4-20mA
-
-    Options for PCL-728 and ACL-6128:
-     [0] - IO Base
-     [2], [3] - D/A output range for channel 1 and 2:
-		0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
-		4: 4-20mA, 5: 0-20mA
-
-    Options for ACL-6126:
-     [0] - IO Base
-     [1] - IRQ (0=disable, 3, 5, 6, 7, 9, 10, 11, 12, 15) (currently ignored)
-     [2]...[7] - D/A output range for channel 1-6:
-		0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V,
-		4: 4-20mA
-*/
+ * pcl726.c
+ * Comedi driver for 6/12-Channel D/A Output and DIO cards
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 1998 David A. Schleef <ds@schleef.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
 
 /*
-    Thanks to Circuit Specialists for having programming info (!) on
-    their web page.  (http://www.cir.com/)
-*/
+ * Driver: pcl726
+ * Description: Advantech PCL-726 & compatibles
+ * Author: David A. Schleef <ds@schleef.org>
+ * Status: untested
+ * Devices: (Advantech) PCL-726 [pcl726]
+ *	    (Advantech) PCL-727 [pcl727]
+ *	    (Advantech) PCL-728 [pcl728]
+ *	    (ADLink) ACL-6126 [acl6126]
+ *	    (ADLink) ACL-6128 [acl6128]
+ *
+ * Configuration Options:
+ *   [0]  - IO Base
+ *   [1]  - IRQ (ACL-6126 only)
+ *   [2]  - D/A output range for channel 0
+ *   [3]  - D/A output range for channel 1
+ *
+ * Boards with > 2 analog output channels:
+ *   [4]  - D/A output range for channel 2
+ *   [5]  - D/A output range for channel 3
+ *   [6]  - D/A output range for channel 4
+ *   [7]  - D/A output range for channel 5
+ *
+ * Boards with > 6 analog output channels:
+ *   [8]  - D/A output range for channel 6
+ *   [9]  - D/A output range for channel 7
+ *   [10] - D/A output range for channel 8
+ *   [11] - D/A output range for channel 9
+ *   [12] - D/A output range for channel 10
+ *   [13] - D/A output range for channel 11
+ *
+ * For PCL-726 the D/A output ranges are:
+ *   0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V, 4: 4-20mA, 5: unknown
+ *
+ * For PCL-727:
+ *   0: 0-5V, 1: 0-10V, 2: +/-5V, 3: 4-20mA
+ *
+ * For PCL-728 and ACL-6128:
+ *   0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V, 4: 4-20mA, 5: 0-20mA
+ *
+ * For ACL-6126:
+ *   0: 0-5V, 1: 0-10V, 2: +/-5V, 3: +/-10V, 4: 4-20mA
+ */
 
 #include <linux/module.h>
 #include <linux/interrupt.h>
-- 
cgit 


From 71e460d270228145a4ae610ea552b0bda4b6f025 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 25 Sep 2013 15:42:16 -0700
Subject: staging: comedi: pcl726: update MODULE_DESCRIPTION

Change the MODULE_DESCRIPTION to something useful instead of the
generic "Comedi low-level driver".

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl726.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index 059abc6ebde8..01f659ea0d13 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -450,5 +450,5 @@ static struct comedi_driver pcl726_driver = {
 module_comedi_driver(pcl726_driver);
 
 MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
+MODULE_DESCRIPTION("Comedi driver for Advantech PCL-726 & compatibles");
 MODULE_LICENSE("GPL");
-- 
cgit 


From 1b0ef827d9edbc7e702ad50c363293d5cea6bb76 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Wed, 25 Sep 2013 15:42:36 -0700
Subject: staging: comedi: pcl726: rename 'boardtypes'

'boardtypes' is pretty generic, rename this static const variable.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl726.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index 01f659ea0d13..152f1db6b8ae 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -115,7 +115,7 @@ struct pcl726_board {
 	unsigned int is_pcl727:1;
 };
 
-static const struct pcl726_board boardtypes[] = {
+static const struct pcl726_board pcl726_boards[] = {
 	{
 		.name		= "pcl726",
 		.io_len		= 0x10,
@@ -443,8 +443,8 @@ static struct comedi_driver pcl726_driver = {
 	.module		= THIS_MODULE,
 	.attach		= pcl726_attach,
 	.detach		= comedi_legacy_detach,
-	.board_name	= &boardtypes[0].name,
-	.num_names	= ARRAY_SIZE(boardtypes),
+	.board_name	= &pcl726_boards[0].name,
+	.num_names	= ARRAY_SIZE(pcl726_boards),
 	.offset		= sizeof(struct pcl726_board),
 };
 module_comedi_driver(pcl726_driver);
-- 
cgit 


From b7ea391cc4edf5ebb62d6341285ac5da342213f4 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Thu, 26 Sep 2013 10:16:37 +0100
Subject: staging: comedi: pcl711: add AI cancel handler

Comedi subdevices that support asynchronous commands should have a
'cancel' handler to stop an in-progress command.  Add such a handler to
the pcl711 driver module.  I think merely setting the acquisition mode
to "software-triggered" would be sufficient, but also clear the
interrupt status for good luck.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index eb800bef8852..939a11f4e3c8 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -189,6 +189,14 @@ static unsigned int pcl711_ai_get_sample(struct comedi_device *dev,
 	return val & s->maxdata;
 }
 
+static int pcl711_ai_cancel(struct comedi_device *dev,
+			    struct comedi_subdevice *s)
+{
+	outb(PCL711_INT_STAT_CLR, dev->iobase + PCL711_INT_STAT_REG);
+	pcl711_ai_set_mode(dev, PCL711_MODE_SOFTTRIG);
+	return 0;
+}
+
 static irqreturn_t pcl711_interrupt(int irq, void *d)
 {
 	struct comedi_device *dev = d;
@@ -493,6 +501,7 @@ static int pcl711_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		s->len_chanlist	= 1;
 		s->do_cmdtest	= pcl711_ai_cmdtest;
 		s->do_cmd	= pcl711_ai_cmd;
+		s->cancel	= pcl711_ai_cancel;
 	}
 
 	/* Analog Output subdevice */
-- 
cgit 


From 2ce4e57b9afea13711606839acd382256d201306 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Thu, 26 Sep 2013 10:16:38 +0100
Subject: staging: comedi: pcl711: handle cmd->stop_src and stop_arg

The interrupt handler used to support asynchronous commands on the AI
subdevice currently marks the command as finished (setting the "end of
acquisition" event flag and returning to software-triggered acquisition
mode) once it has decremented `devpriv->ntrig` to 0.  However, nothing
sets `devpriv->ntrig`, as noted in the "FIXME" comment.

If the `stop_src` setting of the asynchronous command is `TRIG_COUNT`,
then the `stop_arg` setting indicates the number of scans to be
performed in the overall acquisition.  (Otherwise, `stop_src` will be
`TRIG_NONE`, meaning the acquisition should run indefinitely until
cancelled.)  When starting the acquisition in `pcl711_ai_cmd()`, set
`devpriv->ntrig` to the number of scans to be performed (`stop_arg`) if
`stop_src` is `TRIG_COUNT`.  In the interrupt handler, don't decrement
`devpriv->ntrig` or handle end of acquision unless `stop_src` is
`TRIG_COUNT`.

Also check for an empty acquisition in `pcl711_ai_cmd()`, i.e. one where
`stop_src` is `TRIG_COUNT` and `stop_arg` is zero and just mark end of
acquisition without actually setting up the interrupts in this case.

Also change the type of the `ntrig` member of the private data structure
to `unsigned int` as it should be (same type as `stop_arg`).

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 939a11f4e3c8..daa78fa63be1 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -156,7 +156,7 @@ static const struct pcl711_board boardtypes[] = {
 };
 
 struct pcl711_private {
-	int ntrig;
+	unsigned int ntrig;
 	unsigned int ao_readback[2];
 	unsigned int divisor1;
 	unsigned int divisor2;
@@ -213,10 +213,8 @@ static irqreturn_t pcl711_interrupt(int irq, void *d)
 
 	outb(PCL711_INT_STAT_CLR, dev->iobase + PCL711_INT_STAT_REG);
 
-	/* FIXME! Nothing else sets ntrig! */
-	if (!(--devpriv->ntrig)) {
+	if (s->async->cmd.stop_src == TRIG_COUNT && !(--devpriv->ntrig)) {
 		pcl711_ai_set_mode(dev, PCL711_MODE_SOFTTRIG);
-
 		s->async->events |= COMEDI_CB_EOA;
 	}
 	comedi_event(dev, s);
@@ -367,6 +365,16 @@ static int pcl711_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	pcl711_set_changain(dev, s, cmd->chanlist[0]);
 
+	if (cmd->stop_src == TRIG_COUNT) {
+		if (cmd->stop_arg == 0) {
+			/* an empty acquisition */
+			s->async->events |= COMEDI_CB_EOA;
+			comedi_event(dev, s);
+			return 0;
+		}
+		devpriv->ntrig = cmd->stop_arg;
+	}
+
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		i8254_load(dev->iobase + PCL711_TIMER_BASE, 0,
 			   1, devpriv->divisor1, I8254_MODE2 | I8254_BINARY);
-- 
cgit 


From a7fa692b5f878fe00699a6691215b961a8fcb276 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Thu, 26 Sep 2013 10:16:39 +0100
Subject: staging: comedi: pcl711: put acquired data in buffer for AI command

The asynchronous command support for the AI subdevice is still missing
one crucial element, it doesn't actually put the acquired data in the
buffer so it can be read()!  Call `comedi_buf_put()` from the interrupt
handler to perform this function.  A return value of 0 from
`comedi_buf_put()` means there was no room in the buffer so set the
`COMEDI_CB_OVERFLOW` and `COMEDI_CB_ERROR` event flags in that case.
Otherwise, set the `COMEDI_CB_BLOCK` and `COMEDI_CB_EOS` event flags to
mark the end of a "scan" (the scan length is currently fixed at one
sample in this driver).

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index daa78fa63be1..e170f8aeef5f 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -213,9 +213,15 @@ static irqreturn_t pcl711_interrupt(int irq, void *d)
 
 	outb(PCL711_INT_STAT_CLR, dev->iobase + PCL711_INT_STAT_REG);
 
-	if (s->async->cmd.stop_src == TRIG_COUNT && !(--devpriv->ntrig)) {
-		pcl711_ai_set_mode(dev, PCL711_MODE_SOFTTRIG);
-		s->async->events |= COMEDI_CB_EOA;
+	if (comedi_buf_put(s->async, (short)data) == 0) {
+		s->async->events |= COMEDI_CB_OVERFLOW | COMEDI_CB_ERROR;
+	} else {
+		s->async->events |= COMEDI_CB_BLOCK | COMEDI_CB_EOS;
+		if (s->async->cmd.stop_src == TRIG_COUNT &&
+		    !(--devpriv->ntrig)) {
+			pcl711_ai_set_mode(dev, PCL711_MODE_SOFTTRIG);
+			s->async->events |= COMEDI_CB_EOA;
+		}
 	}
 	comedi_event(dev, s);
 	return IRQ_HANDLED;
-- 
cgit 


From db8f2aa358958fe5f82e5b9ffa6e0abbaa4fc236 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Fri, 13 Sep 2013 13:57:34 -0600
Subject: USB: correct the usb_disconnect() comment about usb_bus_list_lock

usb_disconnect() no longer acquires usb_bus_list_lock, so update its
comment to that effect.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hub.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 6f783bfe2959..6d97cf7be048 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2023,8 +2023,8 @@ static void hub_free_dev(struct usb_device *udev)
  * Something got disconnected. Get rid of it and all of its children.
  *
  * If *pdev is a normal device then the parent hub must already be locked.
- * If *pdev is a root hub then this routine will acquire the
- * usb_bus_list_lock on behalf of the caller.
+ * If *pdev is a root hub then the caller must hold the usb_bus_list_lock,
+ * which protects the set of root hubs as well as the list of buses.
  *
  * Only hub drivers (including virtual root hub drivers for host
  * controllers) should ever call this.
-- 
cgit 


From d14654dff7a3520b5220367b848732a0a8ccdabe Mon Sep 17 00:00:00 2001
From: Paul Chavent <Paul.Chavent@onera.fr>
Date: Mon, 16 Sep 2013 08:40:59 +0200
Subject: USB: serial: call handle_dcd_change in ftdi driver.

When the device receive a DCD status change, forward the signal to the
USB serial system. This way, we can detect, for instance, PPS pulses.

Signed-off-by: Paul Chavent <paul.chavent@onera.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/ftdi_sio.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index c45f9c0a1b34..f53298d32099 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -1966,8 +1966,16 @@ static int ftdi_process_packet(struct usb_serial_port *port,
 			port->icount.dsr++;
 		if (diff_status & FTDI_RS0_RI)
 			port->icount.rng++;
-		if (diff_status & FTDI_RS0_RLSD)
+		if (diff_status & FTDI_RS0_RLSD) {
+			struct tty_struct *tty;
+
 			port->icount.dcd++;
+			tty = tty_port_tty_get(&port->port);
+			if (tty)
+				usb_serial_handle_dcd_change(port, tty,
+						status & FTDI_RS0_RLSD);
+			tty_kref_put(tty);
+		}
 
 		wake_up_interruptible(&port->port.delta_msr_wait);
 		priv->prev_status = status;
-- 
cgit 


From 833efc0ed19ce9ed7a84dfd3684eb9d892fe9ded Mon Sep 17 00:00:00 2001
From: Paul Chavent <Paul.Chavent@onera.fr>
Date: Mon, 16 Sep 2013 08:41:00 +0200
Subject: USB: serial: invoke dcd_change ldisc's handler.

The DCD pin of the serial port can receive a PPS signal. By calling
the port line discipline dcd handle, this patch allow to monitor PPS
through USB serial devices.

However the performance aren't as good as the uart drivers, so
document this point too.

Signed-off-by: Paul Chavent <paul.chavent@onera.fr>
Acked-by: Rodolfo Giometti <giometti@enneenne.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/pps/pps.txt    | 15 +++++++++++++++
 drivers/usb/serial/generic.c | 10 ++++++++++
 2 files changed, 25 insertions(+)

diff --git a/Documentation/pps/pps.txt b/Documentation/pps/pps.txt
index d35dcdd82ff6..c03b1be5eb15 100644
--- a/Documentation/pps/pps.txt
+++ b/Documentation/pps/pps.txt
@@ -66,6 +66,21 @@ In LinuxPPS the PPS sources are simply char devices usually mapped
 into files /dev/pps0, /dev/pps1, etc..
 
 
+PPS with USB to serial devices
+------------------------------
+
+It is possible to grab the PPS from an USB to serial device. However,
+you should take into account the latencies and jitter introduced by
+the USB stack. Users has reported clock instability around +-1ms when
+synchronized with PPS through USB. This isn't suited for time server
+synchronization.
+
+If your device doesn't report PPS, you can check that the feature is
+supported by its driver. Most of the time, you only need to add a call
+to usb_serial_handle_dcd_change after checking the DCD status (see
+ch341 and pl2303 examples).
+
+
 Coding example
 --------------
 
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 1f31e6b4c251..3a5dac879094 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -570,6 +570,16 @@ void usb_serial_handle_dcd_change(struct usb_serial_port *usb_port,
 
 	dev_dbg(&usb_port->dev, "%s - status %d\n", __func__, status);
 
+	if (tty) {
+		struct tty_ldisc *ld = tty_ldisc_ref(tty);
+
+		if (ld) {
+			if (ld->ops->dcd_change)
+				ld->ops->dcd_change(tty, status);
+			tty_ldisc_deref(ld);
+		}
+	}
+
 	if (status)
 		wake_up_interruptible(&port->open_wait);
 	else if (tty && !C_CLOCAL(tty))
-- 
cgit 


From a60f4f81e4738d1b20cdb9369060211278f177a5 Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Sat, 21 Sep 2013 16:44:42 +0530
Subject: USB: EHCI: make ehci-w90X900 a separate driver

Separate the W90X900(W90P910) on-chip host controller driver from
ehci-hcd host code so that it can be built as a separate driver module.
This work is part of enabling multi-platform kernels on ARM;
however, note that other changes are still needed before W90X900(W90P910)
can be booted with a multi-platform kernel

and an ehci driver that only works on one of them.

With the infrastructure added by Alan Stern in patch 3e0232039
"USB: EHCI: prepare to make ehci-hcd a library module", we can
avoid this problem by turning a bus glue into a separate
module, as we do here for the w90X900 bus glue.

This patch is rebased on greghk/usb-next 3.12 rc1.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Deepak Saxena <dsaxena@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/Kconfig        |  2 +-
 drivers/usb/host/Makefile       |  1 +
 drivers/usb/host/ehci-hcd.c     |  5 ---
 drivers/usb/host/ehci-w90x900.c | 89 +++++++++++++++++------------------------
 4 files changed, 39 insertions(+), 58 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 6c2d7df40edf..7e7c52a081ad 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -224,7 +224,7 @@ config USB_EHCI_MV
 	  on-chip EHCI USB controller" for those.
 
 config USB_W90X900_EHCI
-	bool "W90X900(W90P910) EHCI support"
+	tristate "W90X900(W90P910) EHCI support"
 	depends on ARCH_W90X900
 	---help---
 		Enables support for the W90X900 USB controller
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 50b0041c09a9..29fa3b839d85 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -38,6 +38,7 @@ obj-$(CONFIG_USB_EHCI_S5P)	+= ehci-s5p.o
 obj-$(CONFIG_USB_EHCI_HCD_AT91) += ehci-atmel.o
 obj-$(CONFIG_USB_EHCI_MSM)	+= ehci-msm.o
 obj-$(CONFIG_USB_EHCI_TEGRA)	+= ehci-tegra.o
+obj-$(CONFIG_USB_W90X900_EHCI)	+= ehci-w90x900.o
 
 obj-$(CONFIG_USB_OXU210HP_HCD)	+= oxu210hp-hcd.o
 obj-$(CONFIG_USB_ISP116X_HCD)	+= isp116x-hcd.o
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 5d6022f30ebe..3e3ca839e6ce 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1238,11 +1238,6 @@ MODULE_LICENSE ("GPL");
 #define XILINX_OF_PLATFORM_DRIVER	ehci_hcd_xilinx_of_driver
 #endif
 
-#ifdef CONFIG_USB_W90X900_EHCI
-#include "ehci-w90x900.c"
-#define	PLATFORM_DRIVER		ehci_hcd_w90x900_driver
-#endif
-
 #ifdef CONFIG_USB_OCTEON_EHCI
 #include "ehci-octeon.c"
 #define PLATFORM_DRIVER		ehci_octeon_driver
diff --git a/drivers/usb/host/ehci-w90x900.c b/drivers/usb/host/ehci-w90x900.c
index 1c370dfbee0d..cdad8438c02b 100644
--- a/drivers/usb/host/ehci-w90x900.c
+++ b/drivers/usb/host/ehci-w90x900.c
@@ -11,13 +11,28 @@
  *
  */
 
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+
+#include "ehci.h"
 
 /* enable phy0 and phy1 for w90p910 */
 #define	ENPHY		(0x01<<8)
 #define PHY0_CTR	(0xA4)
 #define PHY1_CTR	(0xA8)
 
+#define DRIVER_DESC "EHCI w90x900 driver"
+
+static const char hcd_name[] = "ehci-w90x900 ";
+
+static struct hc_driver __read_mostly ehci_w90x900_hc_driver;
+
 static int usb_w90x900_probe(const struct hc_driver *driver,
 		      struct platform_device *pdev)
 {
@@ -90,8 +105,8 @@ err1:
 	return retval;
 }
 
-static
-void usb_w90x900_remove(struct usb_hcd *hcd, struct platform_device *pdev)
+static void usb_w90x900_remove(struct usb_hcd *hcd,
+			struct platform_device *pdev)
 {
 	usb_remove_hcd(hcd);
 	iounmap(hcd->regs);
@@ -99,54 +114,6 @@ void usb_w90x900_remove(struct usb_hcd *hcd, struct platform_device *pdev)
 	usb_put_hcd(hcd);
 }
 
-static const struct hc_driver ehci_w90x900_hc_driver = {
-	.description = hcd_name,
-	.product_desc = "Nuvoton w90x900 EHCI Host Controller",
-	.hcd_priv_size = sizeof(struct ehci_hcd),
-
-	/*
-	 * generic hardware linkage
-	 */
-	.irq = ehci_irq,
-	.flags = HCD_USB2|HCD_MEMORY|HCD_BH,
-
-	/*
-	 * basic lifecycle operations
-	 */
-	.reset = ehci_setup,
-	.start = ehci_run,
-
-	.stop = ehci_stop,
-	.shutdown = ehci_shutdown,
-
-	/*
-	 * managing i/o requests and associated device resources
-	 */
-	.urb_enqueue = ehci_urb_enqueue,
-	.urb_dequeue = ehci_urb_dequeue,
-	.endpoint_disable = ehci_endpoint_disable,
-	.endpoint_reset = ehci_endpoint_reset,
-
-	/*
-	 * scheduling support
-	 */
-	.get_frame_number = ehci_get_frame,
-
-	/*
-	 * root hub support
-	 */
-	.hub_status_data = ehci_hub_status_data,
-	.hub_control = ehci_hub_control,
-#ifdef	CONFIG_PM
-	.bus_suspend = ehci_bus_suspend,
-	.bus_resume = ehci_bus_resume,
-#endif
-	.relinquish_port	= ehci_relinquish_port,
-	.port_handed_over	= ehci_port_handed_over,
-
-	.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
-};
-
 static int ehci_w90x900_probe(struct platform_device *pdev)
 {
 	if (usb_disabled())
@@ -173,7 +140,25 @@ static struct platform_driver ehci_hcd_w90x900_driver = {
 	},
 };
 
+static int __init ehci_w90X900_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+
+	ehci_init_driver(&ehci_w90x900_hc_driver, NULL);
+	return platform_driver_register(&ehci_hcd_w90x900_driver);
+}
+module_init(ehci_w90X900_init);
+
+static void __exit ehci_w90X900_cleanup(void)
+{
+	platform_driver_unregister(&ehci_hcd_w90x900_driver);
+}
+module_exit(ehci_w90X900_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>");
-MODULE_DESCRIPTION("w90p910 usb ehci driver!");
-MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:w90p910-ehci");
+MODULE_LICENSE("GPL v2");
-- 
cgit 


From 50a97e059bc9ffe05270a1e2dd963cff1b7396bd Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Sat, 21 Sep 2013 16:38:38 +0530
Subject: USB: OHCI: make ohci-exynos a separate driver

Separate the  Samsung OHCI EXYNOS host controller driver from ohci-hcd
host code so that it can be built as a separate driver module.
This work is part of enabling multi-platform kernels on ARM.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Deepak Saxena <dsaxena@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Cc: Vivek Gautam <gautam.vivek@samsung.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/Kconfig       |   4 +-
 drivers/usb/host/Makefile      |   1 +
 drivers/usb/host/ohci-exynos.c | 167 +++++++++++++++++------------------------
 drivers/usb/host/ohci-hcd.c    |  18 -----
 4 files changed, 72 insertions(+), 118 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 7e7c52a081ad..d8d39c7846c7 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -454,8 +454,8 @@ config USB_OHCI_SH
 	  If you use the PCI OHCI controller, this option is not necessary.
 
 config USB_OHCI_EXYNOS
-	boolean "OHCI support for Samsung EXYNOS SoC Series"
-	depends on ARCH_EXYNOS
+	tristate "OHCI support for Samsung S5P/EXYNOS SoC Series"
+	depends on PLAT_S5P || ARCH_EXYNOS
 	help
 	 Enable support for the Samsung Exynos SOC's on-chip OHCI controller.
 
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 29fa3b839d85..78ace5517896 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -47,6 +47,7 @@ obj-$(CONFIG_USB_ISP1362_HCD)	+= isp1362-hcd.o
 obj-$(CONFIG_USB_OHCI_HCD)	+= ohci-hcd.o
 obj-$(CONFIG_USB_OHCI_HCD_PCI)	+= ohci-pci.o
 obj-$(CONFIG_USB_OHCI_HCD_PLATFORM)	+= ohci-platform.o
+obj-$(CONFIG_USB_OHCI_EXYNOS)	+= ohci-exynos.o
 
 obj-$(CONFIG_USB_UHCI_HCD)	+= uhci-hcd.o
 obj-$(CONFIG_USB_FHCI_HCD)	+= fhci.o
diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c
index dc6ee9adacf5..3e4bc74f76ab 100644
--- a/drivers/usb/host/ohci-exynos.c
+++ b/drivers/usb/host/ohci-exynos.c
@@ -12,24 +12,39 @@
  */
 
 #include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/platform_data/usb-ohci-exynos.h>
 #include <linux/usb/phy.h>
 #include <linux/usb/samsung_usb_phy.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+#include <linux/usb/otg.h>
+
+#include "ohci.h"
+
+#define DRIVER_DESC "OHCI EXYNOS driver"
+
+static const char hcd_name[] = "ohci-exynos";
+static struct hc_driver __read_mostly exynos_ohci_hc_driver;
+
+#define to_exynos_ohci(hcd) (struct exynos_ohci_hcd *)(hcd_to_ohci(hcd)->priv)
 
 struct exynos_ohci_hcd {
-	struct device *dev;
-	struct usb_hcd *hcd;
 	struct clk *clk;
 	struct usb_phy *phy;
 	struct usb_otg *otg;
 	struct exynos4_ohci_platdata *pdata;
 };
 
-static void exynos_ohci_phy_enable(struct exynos_ohci_hcd *exynos_ohci)
+static void exynos_ohci_phy_enable(struct platform_device *pdev)
 {
-	struct platform_device *pdev = to_platform_device(exynos_ohci->dev);
+	struct usb_hcd *hcd = platform_get_drvdata(pdev);
+	struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd);
 
 	if (exynos_ohci->phy)
 		usb_phy_init(exynos_ohci->phy);
@@ -37,9 +52,10 @@ static void exynos_ohci_phy_enable(struct exynos_ohci_hcd *exynos_ohci)
 		exynos_ohci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST);
 }
 
-static void exynos_ohci_phy_disable(struct exynos_ohci_hcd *exynos_ohci)
+static void exynos_ohci_phy_disable(struct platform_device *pdev)
 {
-	struct platform_device *pdev = to_platform_device(exynos_ohci->dev);
+	struct usb_hcd *hcd = platform_get_drvdata(pdev);
+	struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd);
 
 	if (exynos_ohci->phy)
 		usb_phy_shutdown(exynos_ohci->phy);
@@ -47,63 +63,11 @@ static void exynos_ohci_phy_disable(struct exynos_ohci_hcd *exynos_ohci)
 		exynos_ohci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
 }
 
-static int ohci_exynos_reset(struct usb_hcd *hcd)
-{
-	return ohci_init(hcd_to_ohci(hcd));
-}
-
-static int ohci_exynos_start(struct usb_hcd *hcd)
-{
-	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
-	int ret;
-
-	ohci_dbg(ohci, "ohci_exynos_start, ohci:%p", ohci);
-
-	ret = ohci_run(ohci);
-	if (ret < 0) {
-		dev_err(hcd->self.controller, "can't start %s\n",
-			hcd->self.bus_name);
-		ohci_stop(hcd);
-		return ret;
-	}
-
-	return 0;
-}
-
-static const struct hc_driver exynos_ohci_hc_driver = {
-	.description		= hcd_name,
-	.product_desc		= "EXYNOS OHCI Host Controller",
-	.hcd_priv_size		= sizeof(struct ohci_hcd),
-
-	.irq			= ohci_irq,
-	.flags			= HCD_MEMORY|HCD_USB11,
-
-	.reset			= ohci_exynos_reset,
-	.start			= ohci_exynos_start,
-	.stop			= ohci_stop,
-	.shutdown		= ohci_shutdown,
-
-	.get_frame_number	= ohci_get_frame,
-
-	.urb_enqueue		= ohci_urb_enqueue,
-	.urb_dequeue		= ohci_urb_dequeue,
-	.endpoint_disable	= ohci_endpoint_disable,
-
-	.hub_status_data	= ohci_hub_status_data,
-	.hub_control		= ohci_hub_control,
-#ifdef	CONFIG_PM
-	.bus_suspend		= ohci_bus_suspend,
-	.bus_resume		= ohci_bus_resume,
-#endif
-	.start_port_reset	= ohci_start_port_reset,
-};
-
 static int exynos_ohci_probe(struct platform_device *pdev)
 {
 	struct exynos4_ohci_platdata *pdata = dev_get_platdata(&pdev->dev);
 	struct exynos_ohci_hcd *exynos_ohci;
 	struct usb_hcd *hcd;
-	struct ohci_hcd *ohci;
 	struct resource *res;
 	struct usb_phy *phy;
 	int irq;
@@ -119,10 +83,14 @@ static int exynos_ohci_probe(struct platform_device *pdev)
 	if (!pdev->dev.coherent_dma_mask)
 		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 
-	exynos_ohci = devm_kzalloc(&pdev->dev, sizeof(struct exynos_ohci_hcd),
-					GFP_KERNEL);
-	if (!exynos_ohci)
+	hcd = usb_create_hcd(&exynos_ohci_hc_driver,
+				&pdev->dev, dev_name(&pdev->dev));
+	if (!hcd) {
+		dev_err(&pdev->dev, "Unable to create HCD\n");
 		return -ENOMEM;
+	}
+
+	exynos_ohci = to_exynos_ohci(hcd);
 
 	if (of_device_is_compatible(pdev->dev.of_node,
 					"samsung,exynos5440-ohci"))
@@ -143,17 +111,6 @@ static int exynos_ohci_probe(struct platform_device *pdev)
 	}
 
 skip_phy:
-
-	exynos_ohci->dev = &pdev->dev;
-
-	hcd = usb_create_hcd(&exynos_ohci_hc_driver, &pdev->dev,
-					dev_name(&pdev->dev));
-	if (!hcd) {
-		dev_err(&pdev->dev, "Unable to create HCD\n");
-		return -ENOMEM;
-	}
-
-	exynos_ohci->hcd = hcd;
 	exynos_ohci->clk = devm_clk_get(&pdev->dev, "usbhost");
 
 	if (IS_ERR(exynos_ohci->clk)) {
@@ -190,26 +147,21 @@ skip_phy:
 	}
 
 	if (exynos_ohci->otg)
-		exynos_ohci->otg->set_host(exynos_ohci->otg,
-					&exynos_ohci->hcd->self);
+		exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self);
 
-	exynos_ohci_phy_enable(exynos_ohci);
+	platform_set_drvdata(pdev, hcd);
 
-	ohci = hcd_to_ohci(hcd);
-	ohci_hcd_init(ohci);
+	exynos_ohci_phy_enable(pdev);
 
 	err = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (err) {
 		dev_err(&pdev->dev, "Failed to add USB HCD\n");
 		goto fail_add_hcd;
 	}
-
-	platform_set_drvdata(pdev, exynos_ohci);
-
 	return 0;
 
 fail_add_hcd:
-	exynos_ohci_phy_disable(exynos_ohci);
+	exynos_ohci_phy_disable(pdev);
 fail_io:
 	clk_disable_unprepare(exynos_ohci->clk);
 fail_clk:
@@ -219,16 +171,15 @@ fail_clk:
 
 static int exynos_ohci_remove(struct platform_device *pdev)
 {
-	struct exynos_ohci_hcd *exynos_ohci = platform_get_drvdata(pdev);
-	struct usb_hcd *hcd = exynos_ohci->hcd;
+	struct usb_hcd *hcd = platform_get_drvdata(pdev);
+	struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd);
 
 	usb_remove_hcd(hcd);
 
 	if (exynos_ohci->otg)
-		exynos_ohci->otg->set_host(exynos_ohci->otg,
-					&exynos_ohci->hcd->self);
+		exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self);
 
-	exynos_ohci_phy_disable(exynos_ohci);
+	exynos_ohci_phy_disable(pdev);
 
 	clk_disable_unprepare(exynos_ohci->clk);
 
@@ -239,8 +190,7 @@ static int exynos_ohci_remove(struct platform_device *pdev)
 
 static void exynos_ohci_shutdown(struct platform_device *pdev)
 {
-	struct exynos_ohci_hcd *exynos_ohci = platform_get_drvdata(pdev);
-	struct usb_hcd *hcd = exynos_ohci->hcd;
+	struct usb_hcd *hcd = platform_get_drvdata(pdev);
 
 	if (hcd->driver->shutdown)
 		hcd->driver->shutdown(hcd);
@@ -249,9 +199,10 @@ static void exynos_ohci_shutdown(struct platform_device *pdev)
 #ifdef CONFIG_PM
 static int exynos_ohci_suspend(struct device *dev)
 {
-	struct exynos_ohci_hcd *exynos_ohci = dev_get_drvdata(dev);
-	struct usb_hcd *hcd = exynos_ohci->hcd;
+	struct usb_hcd *hcd = dev_get_drvdata(dev);
+	struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd);
 	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+	struct platform_device *pdev = to_platform_device(dev);
 	unsigned long flags;
 	int rc = 0;
 
@@ -271,10 +222,9 @@ static int exynos_ohci_suspend(struct device *dev)
 	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
 
 	if (exynos_ohci->otg)
-		exynos_ohci->otg->set_host(exynos_ohci->otg,
-					&exynos_ohci->hcd->self);
+		exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self);
 
-	exynos_ohci_phy_disable(exynos_ohci);
+	exynos_ohci_phy_disable(pdev);
 
 	clk_disable_unprepare(exynos_ohci->clk);
 
@@ -286,16 +236,16 @@ fail:
 
 static int exynos_ohci_resume(struct device *dev)
 {
-	struct exynos_ohci_hcd *exynos_ohci = dev_get_drvdata(dev);
-	struct usb_hcd *hcd = exynos_ohci->hcd;
+	struct usb_hcd *hcd			= dev_get_drvdata(dev);
+	struct exynos_ohci_hcd *exynos_ohci	= to_exynos_ohci(hcd);
+	struct platform_device *pdev		= to_platform_device(dev);
 
 	clk_prepare_enable(exynos_ohci->clk);
 
 	if (exynos_ohci->otg)
-		exynos_ohci->otg->set_host(exynos_ohci->otg,
-					&exynos_ohci->hcd->self);
+		exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self);
 
-	exynos_ohci_phy_enable(exynos_ohci);
+	exynos_ohci_phy_enable(pdev);
 
 	ohci_resume(hcd, false);
 
@@ -306,6 +256,10 @@ static int exynos_ohci_resume(struct device *dev)
 #define exynos_ohci_resume	NULL
 #endif
 
+static const struct ohci_driver_overrides exynos_overrides __initconst = {
+	.extra_priv_size =	sizeof(struct exynos_ohci_hcd),
+};
+
 static const struct dev_pm_ops exynos_ohci_pm_ops = {
 	.suspend	= exynos_ohci_suspend,
 	.resume		= exynos_ohci_resume,
@@ -331,6 +285,23 @@ static struct platform_driver exynos_ohci_driver = {
 		.of_match_table	= of_match_ptr(exynos_ohci_match),
 	}
 };
+static int __init ohci_exynos_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+	ohci_init_driver(&exynos_ohci_hc_driver, &exynos_overrides);
+	return platform_driver_register(&exynos_ohci_driver);
+}
+module_init(ohci_exynos_init);
+
+static void __exit ohci_exynos_cleanup(void)
+{
+	platform_driver_unregister(&exynos_ohci_driver);
+}
+module_exit(ohci_exynos_cleanup);
 
 MODULE_ALIAS("platform:exynos-ohci");
 MODULE_AUTHOR("Jingoo Han <jg1.han@samsung.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 8f6b695af6a4..1fc7d3bb78b2 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1182,11 +1182,6 @@ MODULE_LICENSE ("GPL");
 #define S3C2410_PLATFORM_DRIVER	ohci_hcd_s3c2410_driver
 #endif
 
-#ifdef CONFIG_USB_OHCI_EXYNOS
-#include "ohci-exynos.c"
-#define EXYNOS_PLATFORM_DRIVER	exynos_ohci_driver
-#endif
-
 #ifdef CONFIG_USB_OHCI_HCD_OMAP1
 #include "ohci-omap.c"
 #define OMAP1_PLATFORM_DRIVER	ohci_hcd_omap_driver
@@ -1336,12 +1331,6 @@ static int __init ohci_hcd_mod_init(void)
 		goto error_s3c2410;
 #endif
 
-#ifdef EXYNOS_PLATFORM_DRIVER
-	retval = platform_driver_register(&EXYNOS_PLATFORM_DRIVER);
-	if (retval < 0)
-		goto error_exynos;
-#endif
-
 #ifdef EP93XX_PLATFORM_DRIVER
 	retval = platform_driver_register(&EP93XX_PLATFORM_DRIVER);
 	if (retval < 0)
@@ -1395,10 +1384,6 @@ static int __init ohci_hcd_mod_init(void)
 	platform_driver_unregister(&EP93XX_PLATFORM_DRIVER);
  error_ep93xx:
 #endif
-#ifdef EXYNOS_PLATFORM_DRIVER
-	platform_driver_unregister(&EXYNOS_PLATFORM_DRIVER);
- error_exynos:
-#endif
 #ifdef S3C2410_PLATFORM_DRIVER
 	platform_driver_unregister(&S3C2410_PLATFORM_DRIVER);
  error_s3c2410:
@@ -1463,9 +1448,6 @@ static void __exit ohci_hcd_mod_exit(void)
 #ifdef EP93XX_PLATFORM_DRIVER
 	platform_driver_unregister(&EP93XX_PLATFORM_DRIVER);
 #endif
-#ifdef EXYNOS_PLATFORM_DRIVER
-	platform_driver_unregister(&EXYNOS_PLATFORM_DRIVER);
-#endif
 #ifdef S3C2410_PLATFORM_DRIVER
 	platform_driver_unregister(&S3C2410_PLATFORM_DRIVER);
 #endif
-- 
cgit 


From de57a1547a4865d31094de95a029fed69edf760d Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Sat, 21 Sep 2013 16:38:39 +0530
Subject: USB: OHCI: make ohci-omap a separate driver

Separate the  TI OHCI OMAP1/2 host controller driver from ohci-hcd
host code so that it can be built as a separate driver module.
This work is part of enabling multi-platform kernels on ARM.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Deepak Saxena <dsaxena@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/Kconfig     |   2 +-
 drivers/usb/host/Makefile    |   1 +
 drivers/usb/host/ohci-hcd.c  |  18 -----
 drivers/usb/host/ohci-omap.c | 156 +++++++++++++++----------------------------
 4 files changed, 55 insertions(+), 122 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index d8d39c7846c7..2b11084c3be9 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -367,7 +367,7 @@ config USB_OHCI_HCD
 if USB_OHCI_HCD
 
 config USB_OHCI_HCD_OMAP1
-	bool "OHCI support for OMAP1/2 chips"
+	tristate "OHCI support for OMAP1/2 chips"
 	depends on ARCH_OMAP1
 	default y
 	---help---
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 78ace5517896..b1640efad539 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -48,6 +48,7 @@ obj-$(CONFIG_USB_OHCI_HCD)	+= ohci-hcd.o
 obj-$(CONFIG_USB_OHCI_HCD_PCI)	+= ohci-pci.o
 obj-$(CONFIG_USB_OHCI_HCD_PLATFORM)	+= ohci-platform.o
 obj-$(CONFIG_USB_OHCI_EXYNOS)	+= ohci-exynos.o
+obj-$(CONFIG_USB_OHCI_HCD_OMAP1)	+= ohci-omap.o
 
 obj-$(CONFIG_USB_UHCI_HCD)	+= uhci-hcd.o
 obj-$(CONFIG_USB_FHCI_HCD)	+= fhci.o
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 1fc7d3bb78b2..fcef838f3c33 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1182,11 +1182,6 @@ MODULE_LICENSE ("GPL");
 #define S3C2410_PLATFORM_DRIVER	ohci_hcd_s3c2410_driver
 #endif
 
-#ifdef CONFIG_USB_OHCI_HCD_OMAP1
-#include "ohci-omap.c"
-#define OMAP1_PLATFORM_DRIVER	ohci_hcd_omap_driver
-#endif
-
 #ifdef CONFIG_USB_OHCI_HCD_OMAP3
 #include "ohci-omap3.c"
 #define OMAP3_PLATFORM_DRIVER	ohci_hcd_omap3_driver
@@ -1289,12 +1284,6 @@ static int __init ohci_hcd_mod_init(void)
 		goto error_platform;
 #endif
 
-#ifdef OMAP1_PLATFORM_DRIVER
-	retval = platform_driver_register(&OMAP1_PLATFORM_DRIVER);
-	if (retval < 0)
-		goto error_omap1_platform;
-#endif
-
 #ifdef OMAP3_PLATFORM_DRIVER
 	retval = platform_driver_register(&OMAP3_PLATFORM_DRIVER);
 	if (retval < 0)
@@ -1408,10 +1397,6 @@ static int __init ohci_hcd_mod_init(void)
 	platform_driver_unregister(&OMAP3_PLATFORM_DRIVER);
  error_omap3_platform:
 #endif
-#ifdef OMAP1_PLATFORM_DRIVER
-	platform_driver_unregister(&OMAP1_PLATFORM_DRIVER);
- error_omap1_platform:
-#endif
 #ifdef PLATFORM_DRIVER
 	platform_driver_unregister(&PLATFORM_DRIVER);
  error_platform:
@@ -1466,9 +1451,6 @@ static void __exit ohci_hcd_mod_exit(void)
 #ifdef OMAP3_PLATFORM_DRIVER
 	platform_driver_unregister(&OMAP3_PLATFORM_DRIVER);
 #endif
-#ifdef OMAP1_PLATFORM_DRIVER
-	platform_driver_unregister(&OMAP1_PLATFORM_DRIVER);
-#endif
 #ifdef PLATFORM_DRIVER
 	platform_driver_unregister(&PLATFORM_DRIVER);
 #endif
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index 31d3a12eb486..18b27a27e7dc 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -14,12 +14,21 @@
  * This file is licenced under the GPL.
  */
 
-#include <linux/signal.h>
-#include <linux/jiffies.h>
-#include <linux/platform_device.h>
 #include <linux/clk.h>
+#include <linux/dma-mapping.h>
 #include <linux/err.h>
 #include <linux/gpio.h>
+#include <linux/io.h>
+#include <linux/jiffies.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/usb/otg.h>
+#include <linux/platform_device.h>
+#include <linux/signal.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+
+#include "ohci.h"
 
 #include <asm/io.h>
 #include <asm/mach-types.h>
@@ -42,10 +51,7 @@
 #define OMAP1510_LB_MMU_RAM_H	0xfffec234
 #define OMAP1510_LB_MMU_RAM_L	0xfffec238
 
-
-#ifndef CONFIG_ARCH_OMAP
-#error "This file is OMAP bus glue.  CONFIG_OMAP must be defined."
-#endif
+#define DRIVER_DESC "OHCI OMAP driver"
 
 #ifdef CONFIG_TPS65010
 #include <linux/i2c/tps65010.h>
@@ -68,8 +74,9 @@ extern int ocpi_enable(void);
 
 static struct clk *usb_host_ck;
 static struct clk *usb_dc_ck;
-static int host_enabled;
-static int host_initialized;
+
+static const char hcd_name[] = "ohci-omap";
+static struct hc_driver __read_mostly ohci_omap_hc_driver;
 
 static void omap_ohci_clock_power(int on)
 {
@@ -188,7 +195,7 @@ static void start_hnp(struct ohci_hcd *ohci)
 
 /*-------------------------------------------------------------------------*/
 
-static int ohci_omap_init(struct usb_hcd *hcd)
+static int ohci_omap_reset(struct usb_hcd *hcd)
 {
 	struct ohci_hcd		*ohci = hcd_to_ohci(hcd);
 	struct omap_usb_config	*config = dev_get_platdata(hcd->self.controller);
@@ -198,9 +205,9 @@ static int ohci_omap_init(struct usb_hcd *hcd)
 	dev_dbg(hcd->self.controller, "starting USB Controller\n");
 
 	if (config->otg) {
-		ohci_to_hcd(ohci)->self.otg_port = config->otg;
+		hcd->self.otg_port = config->otg;
 		/* default/minimum OTG power budget:  8 mA */
-		ohci_to_hcd(ohci)->power_budget = 8;
+		hcd->power_budget = 8;
 	}
 
 	/* boards can use OTG transceivers in non-OTG modes */
@@ -238,9 +245,15 @@ static int ohci_omap_init(struct usb_hcd *hcd)
 		omap_1510_local_bus_init();
 	}
 
-	if ((ret = ohci_init(ohci)) < 0)
+	ret = ohci_setup(hcd);
+	if (ret < 0)
 		return ret;
 
+	if (config->otg || config->rwc) {
+		ohci->hc_control = OHCI_CTRL_RWC;
+		writel(OHCI_CTRL_RWC, &ohci->regs->control);
+	}
+
 	/* board-specific power switching and overcurrent support */
 	if (machine_is_omap_osk() || machine_is_omap_innovator()) {
 		u32	rh = roothub_a (ohci);
@@ -281,14 +294,6 @@ static int ohci_omap_init(struct usb_hcd *hcd)
 	return 0;
 }
 
-static void ohci_omap_stop(struct usb_hcd *hcd)
-{
-	dev_dbg(hcd->self.controller, "stopping USB Controller\n");
-	ohci_stop(hcd);
-	omap_ohci_clock_power(0);
-}
-
-
 /*-------------------------------------------------------------------------*/
 
 /**
@@ -304,7 +309,6 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver,
 {
 	int retval, irq;
 	struct usb_hcd *hcd = 0;
-	struct ohci_hcd *ohci;
 
 	if (pdev->num_resources != 2) {
 		printk(KERN_ERR "hcd probe: invalid num_resources: %i\n",
@@ -354,12 +358,6 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver,
 		goto err2;
 	}
 
-	ohci = hcd_to_ohci(hcd);
-	ohci_hcd_init(ohci);
-
-	host_initialized = 0;
-	host_enabled = 1;
-
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
 		retval = -ENXIO;
@@ -369,11 +367,6 @@ static int usb_hcd_omap_probe (const struct hc_driver *driver,
 	if (retval)
 		goto err3;
 
-	host_initialized = 1;
-
-	if (!host_enabled)
-		omap_ohci_clock_power(0);
-
 	return 0;
 err3:
 	iounmap(hcd->regs);
@@ -402,7 +395,9 @@ err0:
 static inline void
 usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev)
 {
+	dev_dbg(hcd->self.controller, "stopping USB Controller\n");
 	usb_remove_hcd(hcd);
+	omap_ohci_clock_power(0);
 	if (!IS_ERR_OR_NULL(hcd->phy)) {
 		(void) otg_set_host(hcd->phy->otg, 0);
 		usb_put_phy(hcd->phy);
@@ -418,76 +413,6 @@ usb_hcd_omap_remove (struct usb_hcd *hcd, struct platform_device *pdev)
 
 /*-------------------------------------------------------------------------*/
 
-static int
-ohci_omap_start (struct usb_hcd *hcd)
-{
-	struct omap_usb_config *config;
-	struct ohci_hcd	*ohci = hcd_to_ohci (hcd);
-	int		ret;
-
-	if (!host_enabled)
-		return 0;
-	config = dev_get_platdata(hcd->self.controller);
-	if (config->otg || config->rwc) {
-		ohci->hc_control = OHCI_CTRL_RWC;
-		writel(OHCI_CTRL_RWC, &ohci->regs->control);
-	}
-
-	if ((ret = ohci_run (ohci)) < 0) {
-		dev_err(hcd->self.controller, "can't start\n");
-		ohci_stop (hcd);
-		return ret;
-	}
-	return 0;
-}
-
-/*-------------------------------------------------------------------------*/
-
-static const struct hc_driver ohci_omap_hc_driver = {
-	.description =		hcd_name,
-	.product_desc =		"OMAP OHCI",
-	.hcd_priv_size =	sizeof(struct ohci_hcd),
-
-	/*
-	 * generic hardware linkage
-	 */
-	.irq =			ohci_irq,
-	.flags =		HCD_USB11 | HCD_MEMORY,
-
-	/*
-	 * basic lifecycle operations
-	 */
-	.reset =		ohci_omap_init,
-	.start =		ohci_omap_start,
-	.stop =			ohci_omap_stop,
-	.shutdown =		ohci_shutdown,
-
-	/*
-	 * managing i/o requests and associated device resources
-	 */
-	.urb_enqueue =		ohci_urb_enqueue,
-	.urb_dequeue =		ohci_urb_dequeue,
-	.endpoint_disable =	ohci_endpoint_disable,
-
-	/*
-	 * scheduling support
-	 */
-	.get_frame_number =	ohci_get_frame,
-
-	/*
-	 * root hub support
-	 */
-	.hub_status_data =	ohci_hub_status_data,
-	.hub_control =		ohci_hub_control,
-#ifdef	CONFIG_PM
-	.bus_suspend =		ohci_bus_suspend,
-	.bus_resume =		ohci_bus_resume,
-#endif
-	.start_port_reset =	ohci_start_port_reset,
-};
-
-/*-------------------------------------------------------------------------*/
-
 static int ohci_hcd_omap_drv_probe(struct platform_device *dev)
 {
 	return usb_hcd_omap_probe(&ohci_omap_hc_driver, dev);
@@ -553,4 +478,29 @@ static struct platform_driver ohci_hcd_omap_driver = {
 	},
 };
 
+static const struct ohci_driver_overrides omap_overrides __initconst = {
+	.product_desc	= "OMAP OHCI",
+	.reset		= ohci_omap_reset
+};
+
+static int __init ohci_omap_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+
+	ohci_init_driver(&ohci_omap_hc_driver, &omap_overrides);
+	return platform_driver_register(&ohci_hcd_omap_driver);
+}
+module_init(ohci_omap_init);
+
+static void __exit ohci_omap_cleanup(void)
+{
+	platform_driver_unregister(&ohci_hcd_omap_driver);
+}
+module_exit(ohci_omap_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_ALIAS("platform:ohci");
+MODULE_LICENSE("GPL");
-- 
cgit 


From 3a48fef18daa9c2db6ca66958da702eeba3dcef5 Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Sat, 21 Sep 2013 16:38:40 +0530
Subject: USB: OHCI: make ohci-omap3 a separate driver

Separate the  TI OHCI OMAP3 host controller driver from ohci-hcd
host code so that it can be built as a separate driver module.
This work is part of enabling multi-platform kernels on ARM.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Deepak Saxena <dsaxena@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Anand Gadiyar <gadiyar@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/Kconfig      |   2 +-
 drivers/usb/host/Makefile     |   1 +
 drivers/usb/host/ohci-hcd.c   |  18 -------
 drivers/usb/host/ohci-omap3.c | 118 ++++++++++++++----------------------------
 4 files changed, 40 insertions(+), 99 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 2b11084c3be9..f28d9383ce69 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -374,7 +374,7 @@ config USB_OHCI_HCD_OMAP1
 	  Enables support for the OHCI controller on OMAP1/2 chips.
 
 config USB_OHCI_HCD_OMAP3
-	bool "OHCI support for OMAP3 and later chips"
+	tristate "OHCI support for OMAP3 and later chips"
 	depends on (ARCH_OMAP3 || ARCH_OMAP4)
 	default y
 	---help---
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index b1640efad539..31780fba46db 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -49,6 +49,7 @@ obj-$(CONFIG_USB_OHCI_HCD_PCI)	+= ohci-pci.o
 obj-$(CONFIG_USB_OHCI_HCD_PLATFORM)	+= ohci-platform.o
 obj-$(CONFIG_USB_OHCI_EXYNOS)	+= ohci-exynos.o
 obj-$(CONFIG_USB_OHCI_HCD_OMAP1)	+= ohci-omap.o
+obj-$(CONFIG_USB_OHCI_HCD_OMAP3)	+= ohci-omap3.o
 
 obj-$(CONFIG_USB_UHCI_HCD)	+= uhci-hcd.o
 obj-$(CONFIG_USB_FHCI_HCD)	+= fhci.o
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index fcef838f3c33..5e9c334b7cd5 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1182,11 +1182,6 @@ MODULE_LICENSE ("GPL");
 #define S3C2410_PLATFORM_DRIVER	ohci_hcd_s3c2410_driver
 #endif
 
-#ifdef CONFIG_USB_OHCI_HCD_OMAP3
-#include "ohci-omap3.c"
-#define OMAP3_PLATFORM_DRIVER	ohci_hcd_omap3_driver
-#endif
-
 #if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx)
 #include "ohci-pxa27x.c"
 #define PLATFORM_DRIVER		ohci_hcd_pxa27x_driver
@@ -1284,12 +1279,6 @@ static int __init ohci_hcd_mod_init(void)
 		goto error_platform;
 #endif
 
-#ifdef OMAP3_PLATFORM_DRIVER
-	retval = platform_driver_register(&OMAP3_PLATFORM_DRIVER);
-	if (retval < 0)
-		goto error_omap3_platform;
-#endif
-
 #ifdef OF_PLATFORM_DRIVER
 	retval = platform_driver_register(&OF_PLATFORM_DRIVER);
 	if (retval < 0)
@@ -1393,10 +1382,6 @@ static int __init ohci_hcd_mod_init(void)
 	platform_driver_unregister(&OF_PLATFORM_DRIVER);
  error_of_platform:
 #endif
-#ifdef OMAP3_PLATFORM_DRIVER
-	platform_driver_unregister(&OMAP3_PLATFORM_DRIVER);
- error_omap3_platform:
-#endif
 #ifdef PLATFORM_DRIVER
 	platform_driver_unregister(&PLATFORM_DRIVER);
  error_platform:
@@ -1448,9 +1433,6 @@ static void __exit ohci_hcd_mod_exit(void)
 #ifdef OF_PLATFORM_DRIVER
 	platform_driver_unregister(&OF_PLATFORM_DRIVER);
 #endif
-#ifdef OMAP3_PLATFORM_DRIVER
-	platform_driver_unregister(&OMAP3_PLATFORM_DRIVER);
-#endif
 #ifdef PLATFORM_DRIVER
 	platform_driver_unregister(&PLATFORM_DRIVER);
 #endif
diff --git a/drivers/usb/host/ohci-omap3.c b/drivers/usb/host/ohci-omap3.c
index a09af26f69ed..408d06a68571 100644
--- a/drivers/usb/host/ohci-omap3.c
+++ b/drivers/usb/host/ohci-omap3.c
@@ -29,90 +29,22 @@
  *	- add kernel-doc
  */
 
+#include <linux/dma-mapping.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/usb/otg.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
-#include <linux/of.h>
-#include <linux/dma-mapping.h>
-
-/*-------------------------------------------------------------------------*/
-
-static int ohci_omap3_init(struct usb_hcd *hcd)
-{
-	dev_dbg(hcd->self.controller, "starting OHCI controller\n");
-
-	return ohci_init(hcd_to_ohci(hcd));
-}
-
-/*-------------------------------------------------------------------------*/
-
-static int ohci_omap3_start(struct usb_hcd *hcd)
-{
-	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
-	int ret;
-
-	/*
-	 * RemoteWakeupConnected has to be set explicitly before
-	 * calling ohci_run. The reset value of RWC is 0.
-	 */
-	ohci->hc_control = OHCI_CTRL_RWC;
-	writel(OHCI_CTRL_RWC, &ohci->regs->control);
-
-	ret = ohci_run(ohci);
-
-	if (ret < 0) {
-		dev_err(hcd->self.controller, "can't start\n");
-		ohci_stop(hcd);
-	}
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
 
-	return ret;
-}
+#include "ohci.h"
 
-/*-------------------------------------------------------------------------*/
+#define DRIVER_DESC "OHCI OMAP3 driver"
 
-static const struct hc_driver ohci_omap3_hc_driver = {
-	.description =		hcd_name,
-	.product_desc =		"OMAP3 OHCI Host Controller",
-	.hcd_priv_size =	sizeof(struct ohci_hcd),
-
-	/*
-	 * generic hardware linkage
-	 */
-	.irq =			ohci_irq,
-	.flags =		HCD_USB11 | HCD_MEMORY,
-
-	/*
-	 * basic lifecycle operations
-	 */
-	.reset =		ohci_omap3_init,
-	.start =		ohci_omap3_start,
-	.stop =			ohci_stop,
-	.shutdown =		ohci_shutdown,
-
-	/*
-	 * managing i/o requests and associated device resources
-	 */
-	.urb_enqueue =		ohci_urb_enqueue,
-	.urb_dequeue =		ohci_urb_dequeue,
-	.endpoint_disable =	ohci_endpoint_disable,
-
-	/*
-	 * scheduling support
-	 */
-	.get_frame_number =	ohci_get_frame,
-
-	/*
-	 * root hub support
-	 */
-	.hub_status_data =	ohci_hub_status_data,
-	.hub_control =		ohci_hub_control,
-#ifdef	CONFIG_PM
-	.bus_suspend =		ohci_bus_suspend,
-	.bus_resume =		ohci_bus_resume,
-#endif
-	.start_port_reset =	ohci_start_port_reset,
-};
-
-/*-------------------------------------------------------------------------*/
+static const char hcd_name[] = "ohci-omap3";
+static struct hc_driver __read_mostly ohci_omap3_hc_driver;
 
 /*
  * configure so an HC device and id are always provided
@@ -129,6 +61,7 @@ static const struct hc_driver ohci_omap3_hc_driver = {
 static int ohci_hcd_omap3_probe(struct platform_device *pdev)
 {
 	struct device		*dev = &pdev->dev;
+	struct ohci_hcd		*ohci;
 	struct usb_hcd		*hcd = NULL;
 	void __iomem		*regs = NULL;
 	struct resource		*res;
@@ -185,7 +118,12 @@ static int ohci_hcd_omap3_probe(struct platform_device *pdev)
 	pm_runtime_enable(dev);
 	pm_runtime_get_sync(dev);
 
-	ohci_hcd_init(hcd_to_ohci(hcd));
+	ohci = hcd_to_ohci(hcd);
+	/*
+	 * RemoteWakeupConnected has to be set explicitly before
+	 * calling ohci_run. The reset value of RWC is 0.
+	 */
+	ohci->hc_control = OHCI_CTRL_RWC;
 
 	ret = usb_add_hcd(hcd, irq, 0);
 	if (ret) {
@@ -248,5 +186,25 @@ static struct platform_driver ohci_hcd_omap3_driver = {
 	},
 };
 
+static int __init ohci_omap3_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+
+	ohci_init_driver(&ohci_omap3_hc_driver, NULL);
+	return platform_driver_register(&ohci_hcd_omap3_driver);
+}
+module_init(ohci_omap3_init);
+
+static void __exit ohci_omap3_cleanup(void)
+{
+	platform_driver_unregister(&ohci_hcd_omap3_driver);
+}
+module_exit(ohci_omap3_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_ALIAS("platform:ohci-omap3");
 MODULE_AUTHOR("Anand Gadiyar <gadiyar@ti.com>");
+MODULE_LICENSE("GPL");
-- 
cgit 


From 4ed377e36ec2f385484d12e516faf88516fad31c Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Sat, 21 Sep 2013 06:32:34 +0200
Subject: net: neighbour: use source address of last enqueued packet for
 solicitation

Currently we always use the first member of the arp_queue to determine
the sender ip address of the arp packet (or in case of IPv6 - source
address of the ndisc packet). This skb is fixed as long as the queue is
not drained by a complete purge because of a timeout or by a successful
response.

If the first packet enqueued on the arp_queue is from a local application
with a manually set source address and the to be discovered system
does some kind of uRPF checks on the source address in the arp packet
the resolving process hangs until a timeout and restarts. This hurts
communication with the participating network node.

This could be mitigated a bit if we use the latest enqueued skb's
source address for the resolving process, which is not as static as
the arp_queue's head. This change of the source address could result in
better recovery of a failed solicitation.

Cc: "David S. Miller" <davem@davemloft.net>
Cc: Julian Anastasov <ja@ssi.bg>
Reviewed-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/neighbour.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/neighbour.c b/net/core/neighbour.c
index 6072610a8672..ca15f32821fb 100644
--- a/net/core/neighbour.c
+++ b/net/core/neighbour.c
@@ -867,7 +867,7 @@ static void neigh_invalidate(struct neighbour *neigh)
 static void neigh_probe(struct neighbour *neigh)
 	__releases(neigh->lock)
 {
-	struct sk_buff *skb = skb_peek(&neigh->arp_queue);
+	struct sk_buff *skb = skb_peek_tail(&neigh->arp_queue);
 	/* keep skb alive even if arp_queue overflows */
 	if (skb)
 		skb = skb_copy(skb, GFP_ATOMIC);
-- 
cgit 


From 1cc6ac59ffaa164c12003c5c3ce9590b0cba3b50 Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Sat, 21 Sep 2013 16:38:41 +0530
Subject: USB: OHCI: make ohci-spear a separate driver

Separate the ST OHCI SPEAr host controller driver from ohci-hcd
host code so that it can be built as a separate driver module.
This work is part of enabling multi-platform kernels on ARM.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Deepak Saxena <dsaxena@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/Kconfig      |   8 +++
 drivers/usb/host/Makefile     |   1 +
 drivers/usb/host/ohci-hcd.c   |  18 ------
 drivers/usb/host/ohci-spear.c | 140 +++++++++++++++++-------------------------
 4 files changed, 65 insertions(+), 102 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index f28d9383ce69..06ea7542c7fd 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -373,6 +373,14 @@ config USB_OHCI_HCD_OMAP1
 	---help---
 	  Enables support for the OHCI controller on OMAP1/2 chips.
 
+config USB_OHCI_HCD_SPEAR
+        tristate "Support for ST SPEAr on-chip OHCI USB controller"
+        depends on USB_OHCI_HCD && PLAT_SPEAR
+        default y
+        ---help---
+          Enables support for the on-chip OHCI controller on
+          ST SPEAr chips.
+
 config USB_OHCI_HCD_OMAP3
 	tristate "OHCI support for OMAP3 and later chips"
 	depends on (ARCH_OMAP3 || ARCH_OMAP4)
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 31780fba46db..b8dcba57d8b0 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -50,6 +50,7 @@ obj-$(CONFIG_USB_OHCI_HCD_PLATFORM)	+= ohci-platform.o
 obj-$(CONFIG_USB_OHCI_EXYNOS)	+= ohci-exynos.o
 obj-$(CONFIG_USB_OHCI_HCD_OMAP1)	+= ohci-omap.o
 obj-$(CONFIG_USB_OHCI_HCD_OMAP3)	+= ohci-omap3.o
+obj-$(CONFIG_USB_OHCI_HCD_SPEAR)	+= ohci-spear.o
 
 obj-$(CONFIG_USB_UHCI_HCD)	+= uhci-hcd.o
 obj-$(CONFIG_USB_FHCI_HCD)	+= fhci.o
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 5e9c334b7cd5..523f58e646c7 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1212,11 +1212,6 @@ MODULE_LICENSE ("GPL");
 #define OF_PLATFORM_DRIVER	ohci_hcd_ppc_of_driver
 #endif
 
-#ifdef CONFIG_PLAT_SPEAR
-#include "ohci-spear.c"
-#define SPEAR_PLATFORM_DRIVER	spear_ohci_hcd_driver
-#endif
-
 #ifdef CONFIG_PPC_PS3
 #include "ohci-ps3.c"
 #define PS3_SYSTEM_BUS_DRIVER	ps3_ohci_driver
@@ -1333,19 +1328,9 @@ static int __init ohci_hcd_mod_init(void)
 		goto error_davinci;
 #endif
 
-#ifdef SPEAR_PLATFORM_DRIVER
-	retval = platform_driver_register(&SPEAR_PLATFORM_DRIVER);
-	if (retval < 0)
-		goto error_spear;
-#endif
-
 	return retval;
 
 	/* Error path */
-#ifdef SPEAR_PLATFORM_DRIVER
-	platform_driver_unregister(&SPEAR_PLATFORM_DRIVER);
- error_spear:
-#endif
 #ifdef DAVINCI_PLATFORM_DRIVER
 	platform_driver_unregister(&DAVINCI_PLATFORM_DRIVER);
  error_davinci:
@@ -1403,9 +1388,6 @@ module_init(ohci_hcd_mod_init);
 
 static void __exit ohci_hcd_mod_exit(void)
 {
-#ifdef SPEAR_PLATFORM_DRIVER
-	platform_driver_unregister(&SPEAR_PLATFORM_DRIVER);
-#endif
 #ifdef DAVINCI_PLATFORM_DRIVER
 	platform_driver_unregister(&DAVINCI_PLATFORM_DRIVER);
 #endif
diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c
index cc9dd9e4f05e..31ff3fc4e26f 100644
--- a/drivers/usb/host/ohci-spear.c
+++ b/drivers/usb/host/ohci-spear.c
@@ -11,92 +11,37 @@
 * warranty of any kind, whether express or implied.
 */
 
-#include <linux/signal.h>
-#include <linux/platform_device.h>
 #include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/signal.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+
+#include "ohci.h"
 
+#define DRIVER_DESC "OHCI SPEAr driver"
+
+static const char hcd_name[] = "SPEAr-ohci";
 struct spear_ohci {
-	struct ohci_hcd ohci;
 	struct clk *clk;
 };
 
-#define to_spear_ohci(hcd)	(struct spear_ohci *)hcd_to_ohci(hcd)
-
-static void spear_start_ohci(struct spear_ohci *ohci)
-{
-	clk_prepare_enable(ohci->clk);
-}
-
-static void spear_stop_ohci(struct spear_ohci *ohci)
-{
-	clk_disable_unprepare(ohci->clk);
-}
-
-static int ohci_spear_start(struct usb_hcd *hcd)
-{
-	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
-	int ret;
-
-	ret = ohci_init(ohci);
-	if (ret < 0)
-		return ret;
-	ohci->regs = hcd->regs;
-
-	ret = ohci_run(ohci);
-	if (ret < 0) {
-		dev_err(hcd->self.controller, "can't start\n");
-		ohci_stop(hcd);
-		return ret;
-	}
-
-	create_debug_files(ohci);
-
-#ifdef DEBUG
-	ohci_dump(ohci, 1);
-#endif
-	return 0;
-}
-
-static const struct hc_driver ohci_spear_hc_driver = {
-	.description		= hcd_name,
-	.product_desc		= "SPEAr OHCI",
-	.hcd_priv_size		= sizeof(struct spear_ohci),
-
-	/* generic hardware linkage */
-	.irq			= ohci_irq,
-	.flags			= HCD_USB11 | HCD_MEMORY,
-
-	/* basic lifecycle operations */
-	.start			= ohci_spear_start,
-	.stop			= ohci_stop,
-	.shutdown		= ohci_shutdown,
-#ifdef	CONFIG_PM
-	.bus_suspend		= ohci_bus_suspend,
-	.bus_resume		= ohci_bus_resume,
-#endif
-
-	/* managing i/o requests and associated device resources */
-	.urb_enqueue		= ohci_urb_enqueue,
-	.urb_dequeue		= ohci_urb_dequeue,
-	.endpoint_disable	= ohci_endpoint_disable,
-
-	/* scheduling support */
-	.get_frame_number	= ohci_get_frame,
+#define to_spear_ohci(hcd)     (struct spear_ohci *)(hcd_to_ohci(hcd)->priv)
 
-	/* root hub support */
-	.hub_status_data	= ohci_hub_status_data,
-	.hub_control		= ohci_hub_control,
-
-	.start_port_reset	= ohci_start_port_reset,
-};
+static struct hc_driver __read_mostly ohci_spear_hc_driver;
 
 static int spear_ohci_hcd_drv_probe(struct platform_device *pdev)
 {
 	const struct hc_driver *driver = &ohci_spear_hc_driver;
+	struct ohci_hcd *ohci;
 	struct usb_hcd *hcd = NULL;
 	struct clk *usbh_clk;
-	struct spear_ohci *ohci_p;
+	struct spear_ohci *sohci_p;
 	struct resource *res;
 	int retval, irq;
 
@@ -151,16 +96,18 @@ static int spear_ohci_hcd_drv_probe(struct platform_device *pdev)
 		goto err_put_hcd;
 	}
 
-	ohci_p = (struct spear_ohci *)hcd_to_ohci(hcd);
-	ohci_p->clk = usbh_clk;
-	spear_start_ohci(ohci_p);
-	ohci_hcd_init(hcd_to_ohci(hcd));
+	sohci_p = to_spear_ohci(hcd);
+	sohci_p->clk = usbh_clk;
+
+	clk_prepare_enable(sohci_p->clk);
+
+	ohci = hcd_to_ohci(hcd);
 
 	retval = usb_add_hcd(hcd, platform_get_irq(pdev, 0), 0);
 	if (retval == 0)
 		return retval;
 
-	spear_stop_ohci(ohci_p);
+	clk_disable_unprepare(sohci_p->clk);
 err_put_hcd:
 	usb_put_hcd(hcd);
 fail:
@@ -172,11 +119,11 @@ fail:
 static int spear_ohci_hcd_drv_remove(struct platform_device *pdev)
 {
 	struct usb_hcd *hcd = platform_get_drvdata(pdev);
-	struct spear_ohci *ohci_p = to_spear_ohci(hcd);
+	struct spear_ohci *sohci_p = to_spear_ohci(hcd);
 
 	usb_remove_hcd(hcd);
-	if (ohci_p->clk)
-		spear_stop_ohci(ohci_p);
+	if (sohci_p->clk)
+		clk_disable_unprepare(sohci_p->clk);
 
 	usb_put_hcd(hcd);
 	return 0;
@@ -188,13 +135,14 @@ static int spear_ohci_hcd_drv_suspend(struct platform_device *dev,
 {
 	struct usb_hcd *hcd = platform_get_drvdata(dev);
 	struct ohci_hcd	*ohci = hcd_to_ohci(hcd);
-	struct spear_ohci *ohci_p = to_spear_ohci(hcd);
+	struct spear_ohci *sohci_p = to_spear_ohci(hcd);
 
 	if (time_before(jiffies, ohci->next_statechange))
 		msleep(5);
 	ohci->next_statechange = jiffies;
 
-	spear_stop_ohci(ohci_p);
+	clk_disable_unprepare(sohci_p->clk);
+
 	return 0;
 }
 
@@ -202,13 +150,13 @@ static int spear_ohci_hcd_drv_resume(struct platform_device *dev)
 {
 	struct usb_hcd *hcd = platform_get_drvdata(dev);
 	struct ohci_hcd	*ohci = hcd_to_ohci(hcd);
-	struct spear_ohci *ohci_p = to_spear_ohci(hcd);
+	struct spear_ohci *sohci_p = to_spear_ohci(hcd);
 
 	if (time_before(jiffies, ohci->next_statechange))
 		msleep(5);
 	ohci->next_statechange = jiffies;
 
-	spear_start_ohci(ohci_p);
+	clk_prepare_enable(sohci_p->clk);
 	ohci_resume(hcd, false);
 	return 0;
 }
@@ -234,4 +182,28 @@ static struct platform_driver spear_ohci_hcd_driver = {
 	},
 };
 
+static const struct ohci_driver_overrides spear_overrides __initconst = {
+	.extra_priv_size = sizeof(struct spear_ohci),
+};
+static int __init ohci_spear_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+
+	ohci_init_driver(&ohci_spear_hc_driver, &spear_overrides);
+	return platform_driver_register(&spear_ohci_hcd_driver);
+}
+module_init(ohci_spear_init);
+
+static void __exit ohci_spear_cleanup(void)
+{
+	platform_driver_unregister(&spear_ohci_hcd_driver);
+}
+module_exit(ohci_spear_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_AUTHOR("Deepak Sikri");
+MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:spear-ohci");
-- 
cgit 


From e3825b48e2cc8014b3088f8bff1c5f35652f298d Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Sat, 21 Sep 2013 16:38:42 +0530
Subject: USB: OHCI: make ohci-at91 a separate driver

Separate the  TI OHCI Atmel host controller driver from ohci-hcd
host code so that it can be built as a separate driver module.
This work is part of enabling multi-platform kernels on ARM.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Deepak Saxena <dsaxena@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/Kconfig     |   8 +++
 drivers/usb/host/Makefile    |   1 +
 drivers/usb/host/ohci-at91.c | 156 +++++++++++++++++++------------------------
 drivers/usb/host/ohci-hcd.c  |  18 -----
 4 files changed, 79 insertions(+), 104 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 06ea7542c7fd..152c68090cd9 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -381,6 +381,14 @@ config USB_OHCI_HCD_SPEAR
           Enables support for the on-chip OHCI controller on
           ST SPEAr chips.
 
+config USB_OHCI_HCD_AT91
+        tristate "Support for Atmel on-chip OHCI USB controller"
+        depends on USB_OHCI_HCD && ARCH_AT91
+        default y
+        ---help---
+          Enables support for the on-chip OHCI controller on
+          Atmel chips.
+
 config USB_OHCI_HCD_OMAP3
 	tristate "OHCI support for OMAP3 and later chips"
 	depends on (ARCH_OMAP3 || ARCH_OMAP4)
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index b8dcba57d8b0..15dc677e7889 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -51,6 +51,7 @@ obj-$(CONFIG_USB_OHCI_EXYNOS)	+= ohci-exynos.o
 obj-$(CONFIG_USB_OHCI_HCD_OMAP1)	+= ohci-omap.o
 obj-$(CONFIG_USB_OHCI_HCD_OMAP3)	+= ohci-omap3.o
 obj-$(CONFIG_USB_OHCI_HCD_SPEAR)	+= ohci-spear.o
+obj-$(CONFIG_USB_OHCI_HCD_AT91)	+= ohci-at91.o
 
 obj-$(CONFIG_USB_UHCI_HCD)	+= uhci-hcd.o
 obj-$(CONFIG_USB_FHCI_HCD)	+= fhci.o
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index caa3764a3407..476b5a5baf25 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -13,19 +13,24 @@
  */
 
 #include <linux/clk.h>
-#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
 #include <linux/of_platform.h>
 #include <linux/of_gpio.h>
+#include <linux/platform_device.h>
 #include <linux/platform_data/atmel.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
 
 #include <mach/hardware.h>
 #include <asm/gpio.h>
 
 #include <mach/cpu.h>
 
-#ifndef CONFIG_ARCH_AT91
-#error "CONFIG_ARCH_AT91 must be defined."
-#endif
+
+#include "ohci.h"
 
 #define valid_port(index)	((index) >= 0 && (index) < AT91_MAX_USBH_PORTS)
 #define at91_for_each_port(index)	\
@@ -33,7 +38,17 @@
 
 /* interface, function and usb clocks; sometimes also an AHB clock */
 static struct clk *iclk, *fclk, *uclk, *hclk;
+/* interface and function clocks; sometimes also an AHB clock */
+
+#define DRIVER_DESC "OHCI Atmel driver"
+
+static const char hcd_name[] = "ohci-atmel";
+
+static struct hc_driver __read_mostly ohci_at91_hc_driver;
 static int clocked;
+static int (*orig_ohci_hub_control)(struct usb_hcd  *hcd, u16 typeReq,
+			u16 wValue, u16 wIndex, char *buf, u16 wLength);
+static int (*orig_ohci_hub_status_data)(struct usb_hcd *hcd, char *buf);
 
 extern int usb_disabled(void);
 
@@ -117,6 +132,8 @@ static void usb_hcd_at91_remove (struct usb_hcd *, struct platform_device *);
 static int usb_hcd_at91_probe(const struct hc_driver *driver,
 			struct platform_device *pdev)
 {
+	struct at91_usbh_data *board;
+	struct ohci_hcd *ohci;
 	int retval;
 	struct usb_hcd *hcd = NULL;
 
@@ -177,8 +194,10 @@ static int usb_hcd_at91_probe(const struct hc_driver *driver,
 		}
 	}
 
+	board = hcd->self.controller->platform_data;
+	ohci = hcd_to_ohci(hcd);
+	ohci->num_ports = board->ports;
 	at91_start_hc(pdev);
-	ohci_hcd_init(hcd_to_ohci(hcd));
 
 	retval = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_SHARED);
 	if (retval == 0)
@@ -238,36 +257,6 @@ static void usb_hcd_at91_remove(struct usb_hcd *hcd,
 }
 
 /*-------------------------------------------------------------------------*/
-
-static int
-ohci_at91_reset (struct usb_hcd *hcd)
-{
-	struct at91_usbh_data	*board = dev_get_platdata(hcd->self.controller);
-	struct ohci_hcd		*ohci = hcd_to_ohci (hcd);
-	int			ret;
-
-	if ((ret = ohci_init(ohci)) < 0)
-		return ret;
-
-	ohci->num_ports = board->ports;
-	return 0;
-}
-
-static int
-ohci_at91_start (struct usb_hcd *hcd)
-{
-	struct ohci_hcd		*ohci = hcd_to_ohci (hcd);
-	int			ret;
-
-	if ((ret = ohci_run(ohci)) < 0) {
-		dev_err(hcd->self.controller, "can't start %s\n",
-			hcd->self.bus_name);
-		ohci_stop(hcd);
-		return ret;
-	}
-	return 0;
-}
-
 static void ohci_at91_usb_set_power(struct at91_usbh_data *pdata, int port, int enable)
 {
 	if (!valid_port(port))
@@ -297,8 +286,8 @@ static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port)
  */
 static int ohci_at91_hub_status_data(struct usb_hcd *hcd, char *buf)
 {
-	struct at91_usbh_data *pdata = dev_get_platdata(hcd->self.controller);
-	int length = ohci_hub_status_data(hcd, buf);
+	struct at91_usbh_data *pdata = hcd->self.controller->platform_data;
+	int length = orig_ohci_hub_status_data(hcd, buf);
 	int port;
 
 	at91_for_each_port(port) {
@@ -376,7 +365,8 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 		break;
 	}
 
-	ret = ohci_hub_control(hcd, typeReq, wValue, wIndex + 1, buf, wLength);
+	ret = orig_ohci_hub_control(hcd, typeReq, wValue, wIndex + 1,
+				buf, wLength);
 	if (ret)
 		goto out;
 
@@ -430,51 +420,6 @@ static int ohci_at91_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 
 /*-------------------------------------------------------------------------*/
 
-static const struct hc_driver ohci_at91_hc_driver = {
-	.description =		hcd_name,
-	.product_desc =		"AT91 OHCI",
-	.hcd_priv_size =	sizeof(struct ohci_hcd),
-
-	/*
-	 * generic hardware linkage
-	 */
-	.irq =			ohci_irq,
-	.flags =		HCD_USB11 | HCD_MEMORY,
-
-	/*
-	 * basic lifecycle operations
-	 */
-	.reset =		ohci_at91_reset,
-	.start =		ohci_at91_start,
-	.stop =			ohci_stop,
-	.shutdown =		ohci_shutdown,
-
-	/*
-	 * managing i/o requests and associated device resources
-	 */
-	.urb_enqueue =		ohci_urb_enqueue,
-	.urb_dequeue =		ohci_urb_dequeue,
-	.endpoint_disable =	ohci_endpoint_disable,
-
-	/*
-	 * scheduling support
-	 */
-	.get_frame_number =	ohci_get_frame,
-
-	/*
-	 * root hub support
-	 */
-	.hub_status_data =	ohci_at91_hub_status_data,
-	.hub_control =		ohci_at91_hub_control,
-#ifdef CONFIG_PM
-	.bus_suspend =		ohci_bus_suspend,
-	.bus_resume =		ohci_bus_resume,
-#endif
-	.start_port_reset =	ohci_start_port_reset,
-};
-
-/*-------------------------------------------------------------------------*/
-
 static irqreturn_t ohci_hcd_at91_overcurrent_irq(int irq, void *data)
 {
 	struct platform_device *pdev = data;
@@ -703,7 +648,11 @@ ohci_hcd_at91_drv_suspend(struct platform_device *pdev, pm_message_t mesg)
 	 * REVISIT: some boards will be able to turn VBUS off...
 	 */
 	if (at91_suspend_entering_slow_clock()) {
-		ohci_usb_reset (ohci);
+		ohci->hc_control = ohci_readl(ohci, &ohci->regs->control);
+		ohci->hc_control &= OHCI_CTRL_RWC;
+		ohci_writel(ohci, ohci->hc_control, &ohci->regs->control);
+		ohci->rh_state = OHCI_RH_HALTED;
+
 		/* flush the writes */
 		(void) ohci_readl (ohci, &ohci->regs->control);
 		at91_stop_clock();
@@ -730,8 +679,6 @@ static int ohci_hcd_at91_drv_resume(struct platform_device *pdev)
 #define ohci_hcd_at91_drv_resume  NULL
 #endif
 
-MODULE_ALIAS("platform:at91_ohci");
-
 static struct platform_driver ohci_hcd_at91_driver = {
 	.probe		= ohci_hcd_at91_drv_probe,
 	.remove		= ohci_hcd_at91_drv_remove,
@@ -744,3 +691,40 @@ static struct platform_driver ohci_hcd_at91_driver = {
 		.of_match_table	= of_match_ptr(at91_ohci_dt_ids),
 	},
 };
+
+static int __init ohci_at91_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+	ohci_init_driver(&ohci_at91_hc_driver, NULL);
+
+	/*
+	 * The Atmel HW has some unusual quirks, which require Atmel-specific
+	 * workarounds. We override certain hc_driver functions here to
+	 * achieve that. We explicitly do not enhance ohci_driver_overrides to
+	 * allow this more easily, since this is an unusual case, and we don't
+	 * want to encourage others to override these functions by making it
+	 * too easy.
+	 */
+
+	orig_ohci_hub_control = ohci_at91_hc_driver.hub_control;
+	orig_ohci_hub_status_data = ohci_at91_hc_driver.hub_status_data;
+
+	ohci_at91_hc_driver.hub_status_data	= ohci_at91_hub_status_data;
+	ohci_at91_hc_driver.hub_control		= ohci_at91_hub_control;
+
+	return platform_driver_register(&ohci_hcd_at91_driver);
+}
+module_init(ohci_at91_init);
+
+static void __exit ohci_at91_cleanup(void)
+{
+	platform_driver_unregister(&ohci_hcd_at91_driver);
+}
+module_exit(ohci_at91_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:at91_ohci");
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 523f58e646c7..2fdaaf81472d 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1192,11 +1192,6 @@ MODULE_LICENSE ("GPL");
 #define EP93XX_PLATFORM_DRIVER	ohci_hcd_ep93xx_driver
 #endif
 
-#ifdef CONFIG_ARCH_AT91
-#include "ohci-at91.c"
-#define AT91_PLATFORM_DRIVER	ohci_hcd_at91_driver
-#endif
-
 #ifdef CONFIG_ARCH_LPC32XX
 #include "ohci-nxp.c"
 #define NXP_PLATFORM_DRIVER	usb_hcd_nxp_driver
@@ -1310,12 +1305,6 @@ static int __init ohci_hcd_mod_init(void)
 		goto error_ep93xx;
 #endif
 
-#ifdef AT91_PLATFORM_DRIVER
-	retval = platform_driver_register(&AT91_PLATFORM_DRIVER);
-	if (retval < 0)
-		goto error_at91;
-#endif
-
 #ifdef NXP_PLATFORM_DRIVER
 	retval = platform_driver_register(&NXP_PLATFORM_DRIVER);
 	if (retval < 0)
@@ -1339,10 +1328,6 @@ static int __init ohci_hcd_mod_init(void)
 	platform_driver_unregister(&NXP_PLATFORM_DRIVER);
  error_nxp:
 #endif
-#ifdef AT91_PLATFORM_DRIVER
-	platform_driver_unregister(&AT91_PLATFORM_DRIVER);
- error_at91:
-#endif
 #ifdef EP93XX_PLATFORM_DRIVER
 	platform_driver_unregister(&EP93XX_PLATFORM_DRIVER);
  error_ep93xx:
@@ -1394,9 +1379,6 @@ static void __exit ohci_hcd_mod_exit(void)
 #ifdef NXP_PLATFORM_DRIVER
 	platform_driver_unregister(&NXP_PLATFORM_DRIVER);
 #endif
-#ifdef AT91_PLATFORM_DRIVER
-	platform_driver_unregister(&AT91_PLATFORM_DRIVER);
-#endif
 #ifdef EP93XX_PLATFORM_DRIVER
 	platform_driver_unregister(&EP93XX_PLATFORM_DRIVER);
 #endif
-- 
cgit 


From f23b71f3fe63b760a665406f453fa479ff90aad5 Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Sat, 21 Sep 2013 16:38:43 +0530
Subject: USB: OHCI: make ohci-s3c2410 a separate driver

Separate the Samsung OHCI S3C24xx/S3C64xx host controller driver
from ohci-hcd host code so that it can be built as a separate
driver module.This work is part of enabling multi-platform.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Deepak Saxena <dsaxena@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/Kconfig        |   8 +++
 drivers/usb/host/Makefile       |   1 +
 drivers/usb/host/ohci-hcd.c     |  18 ------
 drivers/usb/host/ohci-s3c2410.c | 128 ++++++++++++++++++----------------------
 4 files changed, 66 insertions(+), 89 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 152c68090cd9..f0f9bf6e20de 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -381,6 +381,14 @@ config USB_OHCI_HCD_SPEAR
           Enables support for the on-chip OHCI controller on
           ST SPEAr chips.
 
+config USB_OHCI_HCD_S3C2410
+        tristate "OHCI support for Samsung S3C24xx/S3C64xx SoC series"
+        depends on USB_OHCI_HCD && (ARCH_S3C24XX || ARCH_S3C64XX)
+        default y
+        ---help---
+          Enables support for the on-chip OHCI controller on
+          S3C24xx/S3C64xx chips.
+
 config USB_OHCI_HCD_AT91
         tristate "Support for Atmel on-chip OHCI USB controller"
         depends on USB_OHCI_HCD && ARCH_AT91
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 15dc677e7889..96d18dde672c 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -52,6 +52,7 @@ obj-$(CONFIG_USB_OHCI_HCD_OMAP1)	+= ohci-omap.o
 obj-$(CONFIG_USB_OHCI_HCD_OMAP3)	+= ohci-omap3.o
 obj-$(CONFIG_USB_OHCI_HCD_SPEAR)	+= ohci-spear.o
 obj-$(CONFIG_USB_OHCI_HCD_AT91)	+= ohci-at91.o
+obj-$(CONFIG_USB_OHCI_HCD_S3C2410)	+= ohci-s3c2410.o
 
 obj-$(CONFIG_USB_UHCI_HCD)	+= uhci-hcd.o
 obj-$(CONFIG_USB_FHCI_HCD)	+= fhci.o
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 2fdaaf81472d..fcfcab503250 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1177,11 +1177,6 @@ MODULE_LICENSE ("GPL");
 #define SA1111_DRIVER		ohci_hcd_sa1111_driver
 #endif
 
-#if defined(CONFIG_ARCH_S3C24XX) || defined(CONFIG_ARCH_S3C64XX)
-#include "ohci-s3c2410.c"
-#define S3C2410_PLATFORM_DRIVER	ohci_hcd_s3c2410_driver
-#endif
-
 #if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx)
 #include "ohci-pxa27x.c"
 #define PLATFORM_DRIVER		ohci_hcd_pxa27x_driver
@@ -1293,12 +1288,6 @@ static int __init ohci_hcd_mod_init(void)
 		goto error_tmio;
 #endif
 
-#ifdef S3C2410_PLATFORM_DRIVER
-	retval = platform_driver_register(&S3C2410_PLATFORM_DRIVER);
-	if (retval < 0)
-		goto error_s3c2410;
-#endif
-
 #ifdef EP93XX_PLATFORM_DRIVER
 	retval = platform_driver_register(&EP93XX_PLATFORM_DRIVER);
 	if (retval < 0)
@@ -1332,10 +1321,6 @@ static int __init ohci_hcd_mod_init(void)
 	platform_driver_unregister(&EP93XX_PLATFORM_DRIVER);
  error_ep93xx:
 #endif
-#ifdef S3C2410_PLATFORM_DRIVER
-	platform_driver_unregister(&S3C2410_PLATFORM_DRIVER);
- error_s3c2410:
-#endif
 #ifdef TMIO_OHCI_DRIVER
 	platform_driver_unregister(&TMIO_OHCI_DRIVER);
  error_tmio:
@@ -1382,9 +1367,6 @@ static void __exit ohci_hcd_mod_exit(void)
 #ifdef EP93XX_PLATFORM_DRIVER
 	platform_driver_unregister(&EP93XX_PLATFORM_DRIVER);
 #endif
-#ifdef S3C2410_PLATFORM_DRIVER
-	platform_driver_unregister(&S3C2410_PLATFORM_DRIVER);
-#endif
 #ifdef TMIO_OHCI_DRIVER
 	platform_driver_unregister(&TMIO_OHCI_DRIVER);
 #endif
diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c
index 4919afa4125e..be3429e08d90 100644
--- a/drivers/usb/host/ohci-s3c2410.c
+++ b/drivers/usb/host/ohci-s3c2410.c
@@ -19,19 +19,36 @@
  * This file is licenced under the GPL.
 */
 
-#include <linux/platform_device.h>
 #include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
 #include <linux/platform_data/usb-ohci-s3c2410.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+
+#include "ohci.h"
+
 
 #define valid_port(idx) ((idx) == 1 || (idx) == 2)
 
 /* clock device associated with the hcd */
 
+
+#define DRIVER_DESC "OHCI S3C2410 driver"
+
+static const char hcd_name[] = "ohci-s3c2410";
+
 static struct clk *clk;
 static struct clk *usb_clk;
 
 /* forward definitions */
 
+static int (*orig_ohci_hub_control)(struct usb_hcd  *hcd, u16 typeReq,
+			u16 wValue, u16 wIndex, char *buf, u16 wLength);
+static int (*orig_ohci_hub_status_data)(struct usb_hcd *hcd, char *buf);
+
 static void s3c2410_hcd_oc(struct s3c2410_hcd_info *info, int port_oc);
 
 /* conversion functions */
@@ -93,7 +110,7 @@ ohci_s3c2410_hub_status_data(struct usb_hcd *hcd, char *buf)
 	int orig;
 	int portno;
 
-	orig  = ohci_hub_status_data(hcd, buf);
+	orig = orig_ohci_hub_status_data(hcd, buf);
 
 	if (info == NULL)
 		return orig;
@@ -164,7 +181,7 @@ static int ohci_s3c2410_hub_control(
 	 * process the request straight away and exit */
 
 	if (info == NULL) {
-		ret = ohci_hub_control(hcd, typeReq, wValue,
+		ret = orig_ohci_hub_control(hcd, typeReq, wValue,
 				       wIndex, buf, wLength);
 		goto out;
 	}
@@ -214,7 +231,7 @@ static int ohci_s3c2410_hub_control(
 		break;
 	}
 
-	ret = ohci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength);
+	ret = orig_ohci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength);
 	if (ret)
 		goto out;
 
@@ -374,8 +391,6 @@ static int usb_hcd_s3c2410_probe(const struct hc_driver *driver,
 
 	s3c2410_start_hc(dev, hcd);
 
-	ohci_hcd_init(hcd_to_ohci(hcd));
-
 	retval = usb_add_hcd(hcd, dev->resource[1].start, 0);
 	if (retval != 0)
 		goto err_ioremap;
@@ -392,71 +407,7 @@ static int usb_hcd_s3c2410_probe(const struct hc_driver *driver,
 
 /*-------------------------------------------------------------------------*/
 
-static int
-ohci_s3c2410_start(struct usb_hcd *hcd)
-{
-	struct ohci_hcd	*ohci = hcd_to_ohci(hcd);
-	int ret;
-
-	ret = ohci_init(ohci);
-	if (ret < 0)
-		return ret;
-
-	ret = ohci_run(ohci);
-	if (ret < 0) {
-		dev_err(hcd->self.controller, "can't start %s\n",
-			hcd->self.bus_name);
-		ohci_stop(hcd);
-		return ret;
-	}
-
-	return 0;
-}
-
-
-static const struct hc_driver ohci_s3c2410_hc_driver = {
-	.description =		hcd_name,
-	.product_desc =		"S3C24XX OHCI",
-	.hcd_priv_size =	sizeof(struct ohci_hcd),
-
-	/*
-	 * generic hardware linkage
-	 */
-	.irq =			ohci_irq,
-	.flags =		HCD_USB11 | HCD_MEMORY,
-
-	/*
-	 * basic lifecycle operations
-	 */
-	.start =		ohci_s3c2410_start,
-	.stop =			ohci_stop,
-	.shutdown =		ohci_shutdown,
-
-	/*
-	 * managing i/o requests and associated device resources
-	 */
-	.urb_enqueue =		ohci_urb_enqueue,
-	.urb_dequeue =		ohci_urb_dequeue,
-	.endpoint_disable =	ohci_endpoint_disable,
-
-	/*
-	 * scheduling support
-	 */
-	.get_frame_number =	ohci_get_frame,
-
-	/*
-	 * root hub support
-	 */
-	.hub_status_data =	ohci_s3c2410_hub_status_data,
-	.hub_control =		ohci_s3c2410_hub_control,
-#ifdef	CONFIG_PM
-	.bus_suspend =		ohci_bus_suspend,
-	.bus_resume =		ohci_bus_resume,
-#endif
-	.start_port_reset =	ohci_start_port_reset,
-};
-
-/* device driver */
+static struct hc_driver __read_mostly ohci_s3c2410_hc_driver;
 
 static int ohci_hcd_s3c2410_drv_probe(struct platform_device *pdev)
 {
@@ -533,4 +484,39 @@ static struct platform_driver ohci_hcd_s3c2410_driver = {
 	},
 };
 
+static int __init ohci_s3c2410_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+	ohci_init_driver(&ohci_s3c2410_hc_driver, NULL);
+
+	/*
+	 * The Samsung HW has some unusual quirks, which require
+	 * Sumsung-specific workarounds. We override certain hc_driver
+	 * functions here to achieve that. We explicitly do not enhance
+	 * ohci_driver_overrides to allow this more easily, since this
+	 * is an unusual case, and we don't want to encourage others to
+	 * override these functions by making it too easy.
+	 */
+
+	orig_ohci_hub_control = ohci_s3c2410_hc_driver.hub_control;
+	orig_ohci_hub_status_data = ohci_s3c2410_hc_driver.hub_status_data;
+
+	ohci_s3c2410_hc_driver.hub_status_data	= ohci_s3c2410_hub_status_data;
+	ohci_s3c2410_hc_driver.hub_control	= ohci_s3c2410_hub_control;
+
+	return platform_driver_register(&ohci_hcd_s3c2410_driver);
+}
+module_init(ohci_s3c2410_init);
+
+static void __exit ohci_s3c2410_cleanup(void)
+{
+	platform_driver_unregister(&ohci_hcd_s3c2410_driver);
+}
+module_exit(ohci_s3c2410_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:s3c2410-ohci");
-- 
cgit 


From 30330b8fedba32e6bfeda8040311a11b84053c97 Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Sat, 21 Sep 2013 16:38:44 +0530
Subject: USB: OHCI: make ohci-nxp a separate driver

Separate the OHCI NXP host controller driver from ohci-hcd
host code so that it can be built as a separate driver module.
This work is part of enabling multi-platform kernels on ARM.

Many place function name and struct name started with usb,
current scenario replaced usb with ohci for proper naming.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Deepak Saxena <dsaxena@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/Kconfig    |   8 +++
 drivers/usb/host/Makefile   |   1 +
 drivers/usb/host/ohci-hcd.c |  18 -------
 drivers/usb/host/ohci-nxp.c | 123 +++++++++++++++++---------------------------
 4 files changed, 57 insertions(+), 93 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index f0f9bf6e20de..74ca887eabce 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -389,6 +389,14 @@ config USB_OHCI_HCD_S3C2410
           Enables support for the on-chip OHCI controller on
           S3C24xx/S3C64xx chips.
 
+config USB_OHCI_HCD_LPC32XX
+	tristate "Support for LPC on-chip OHCI USB controller"
+	depends on USB_OHCI_HCD && ARCH_LPC32XX
+	default y
+	---help---
+          Enables support for the on-chip OHCI controller on
+          NXP chips.
+
 config USB_OHCI_HCD_AT91
         tristate "Support for Atmel on-chip OHCI USB controller"
         depends on USB_OHCI_HCD && ARCH_AT91
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 96d18dde672c..db9416f55f26 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -53,6 +53,7 @@ obj-$(CONFIG_USB_OHCI_HCD_OMAP3)	+= ohci-omap3.o
 obj-$(CONFIG_USB_OHCI_HCD_SPEAR)	+= ohci-spear.o
 obj-$(CONFIG_USB_OHCI_HCD_AT91)	+= ohci-at91.o
 obj-$(CONFIG_USB_OHCI_HCD_S3C2410)	+= ohci-s3c2410.o
+obj-$(CONFIG_USB_OHCI_HCD_LPC32XX)	+= ohci-nxp.o
 
 obj-$(CONFIG_USB_UHCI_HCD)	+= uhci-hcd.o
 obj-$(CONFIG_USB_FHCI_HCD)	+= fhci.o
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index fcfcab503250..c51519248db9 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1187,11 +1187,6 @@ MODULE_LICENSE ("GPL");
 #define EP93XX_PLATFORM_DRIVER	ohci_hcd_ep93xx_driver
 #endif
 
-#ifdef CONFIG_ARCH_LPC32XX
-#include "ohci-nxp.c"
-#define NXP_PLATFORM_DRIVER	usb_hcd_nxp_driver
-#endif
-
 #ifdef CONFIG_ARCH_DAVINCI_DA8XX
 #include "ohci-da8xx.c"
 #define DAVINCI_PLATFORM_DRIVER	ohci_hcd_da8xx_driver
@@ -1294,12 +1289,6 @@ static int __init ohci_hcd_mod_init(void)
 		goto error_ep93xx;
 #endif
 
-#ifdef NXP_PLATFORM_DRIVER
-	retval = platform_driver_register(&NXP_PLATFORM_DRIVER);
-	if (retval < 0)
-		goto error_nxp;
-#endif
-
 #ifdef DAVINCI_PLATFORM_DRIVER
 	retval = platform_driver_register(&DAVINCI_PLATFORM_DRIVER);
 	if (retval < 0)
@@ -1313,10 +1302,6 @@ static int __init ohci_hcd_mod_init(void)
 	platform_driver_unregister(&DAVINCI_PLATFORM_DRIVER);
  error_davinci:
 #endif
-#ifdef NXP_PLATFORM_DRIVER
-	platform_driver_unregister(&NXP_PLATFORM_DRIVER);
- error_nxp:
-#endif
 #ifdef EP93XX_PLATFORM_DRIVER
 	platform_driver_unregister(&EP93XX_PLATFORM_DRIVER);
  error_ep93xx:
@@ -1361,9 +1346,6 @@ static void __exit ohci_hcd_mod_exit(void)
 #ifdef DAVINCI_PLATFORM_DRIVER
 	platform_driver_unregister(&DAVINCI_PLATFORM_DRIVER);
 #endif
-#ifdef NXP_PLATFORM_DRIVER
-	platform_driver_unregister(&NXP_PLATFORM_DRIVER);
-#endif
 #ifdef EP93XX_PLATFORM_DRIVER
 	platform_driver_unregister(&EP93XX_PLATFORM_DRIVER);
 #endif
diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c
index 7d7d507d54e8..9ab7e24ba65d 100644
--- a/drivers/usb/host/ohci-nxp.c
+++ b/drivers/usb/host/ohci-nxp.c
@@ -19,10 +19,19 @@
  * or implied.
  */
 #include <linux/clk.h>
-#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
 #include <linux/i2c.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/of.h>
+#include <linux/platform_device.h>
 #include <linux/usb/isp1301.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+
+#include "ohci.h"
+
 
 #include <mach/hardware.h>
 #include <asm/mach-types.h>
@@ -57,6 +66,11 @@
 #define start_int_umask(irq)
 #endif
 
+#define DRIVER_DESC "OHCI NXP driver"
+
+static const char hcd_name[] = "ohci-nxp";
+static struct hc_driver __read_mostly ohci_nxp_hc_driver;
+
 static struct i2c_client *isp1301_i2c_client;
 
 extern int usb_disabled(void);
@@ -132,14 +146,14 @@ static inline void isp1301_vbus_off(void)
 		OTG1_VBUS_DRV);
 }
 
-static void nxp_start_hc(void)
+static void ohci_nxp_start_hc(void)
 {
 	unsigned long tmp = __raw_readl(USB_OTG_STAT_CONTROL) | HOST_EN;
 	__raw_writel(tmp, USB_OTG_STAT_CONTROL);
 	isp1301_vbus_on();
 }
 
-static void nxp_stop_hc(void)
+static void ohci_nxp_stop_hc(void)
 {
 	unsigned long tmp;
 	isp1301_vbus_off();
@@ -147,68 +161,9 @@ static void nxp_stop_hc(void)
 	__raw_writel(tmp, USB_OTG_STAT_CONTROL);
 }
 
-static int ohci_nxp_start(struct usb_hcd *hcd)
-{
-	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
-	int ret;
-
-	if ((ret = ohci_init(ohci)) < 0)
-		return ret;
-
-	if ((ret = ohci_run(ohci)) < 0) {
-		dev_err(hcd->self.controller, "can't start\n");
-		ohci_stop(hcd);
-		return ret;
-	}
-	return 0;
-}
-
-static const struct hc_driver ohci_nxp_hc_driver = {
-	.description = hcd_name,
-	.product_desc =		"nxp OHCI",
-
-	/*
-	 * generic hardware linkage
-	 */
-	.irq = ohci_irq,
-	.flags = HCD_USB11 | HCD_MEMORY,
-
-	.hcd_priv_size =	sizeof(struct ohci_hcd),
-	/*
-	 * basic lifecycle operations
-	 */
-	.start = ohci_nxp_start,
-	.stop = ohci_stop,
-	.shutdown = ohci_shutdown,
-
-	/*
-	 * managing i/o requests and associated device resources
-	 */
-	.urb_enqueue = ohci_urb_enqueue,
-	.urb_dequeue = ohci_urb_dequeue,
-	.endpoint_disable = ohci_endpoint_disable,
-
-	/*
-	 * scheduling support
-	 */
-	.get_frame_number = ohci_get_frame,
-
-	/*
-	 * root hub support
-	 */
-	.hub_status_data = ohci_hub_status_data,
-	.hub_control = ohci_hub_control,
-#ifdef	CONFIG_PM
-	.bus_suspend = ohci_bus_suspend,
-	.bus_resume = ohci_bus_resume,
-#endif
-	.start_port_reset = ohci_start_port_reset,
-};
-
-static int usb_hcd_nxp_probe(struct platform_device *pdev)
+static int ohci_hcd_nxp_probe(struct platform_device *pdev)
 {
 	struct usb_hcd *hcd = 0;
-	struct ohci_hcd *ohci;
 	const struct hc_driver *driver = &ohci_nxp_hc_driver;
 	struct resource *res;
 	int ret = 0, irq;
@@ -313,17 +268,15 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
 		goto fail_resource;
 	}
 
-	nxp_start_hc();
+	ohci_nxp_start_hc();
 	platform_set_drvdata(pdev, hcd);
-	ohci = hcd_to_ohci(hcd);
-	ohci_hcd_init(ohci);
 
 	dev_info(&pdev->dev, "at 0x%p, irq %d\n", hcd->regs, hcd->irq);
 	ret = usb_add_hcd(hcd, irq, 0);
 	if (ret == 0)
 		return ret;
 
-	nxp_stop_hc();
+	ohci_nxp_stop_hc();
 fail_resource:
 	usb_put_hcd(hcd);
 fail_hcd:
@@ -345,12 +298,12 @@ fail_disable:
 	return ret;
 }
 
-static int usb_hcd_nxp_remove(struct platform_device *pdev)
+static int ohci_hcd_nxp_remove(struct platform_device *pdev)
 {
 	struct usb_hcd *hcd = platform_get_drvdata(pdev);
 
 	usb_remove_hcd(hcd);
-	nxp_stop_hc();
+	ohci_nxp_stop_hc();
 	usb_put_hcd(hcd);
 	clk_disable(usb_pll_clk);
 	clk_put(usb_pll_clk);
@@ -366,20 +319,40 @@ static int usb_hcd_nxp_remove(struct platform_device *pdev)
 MODULE_ALIAS("platform:usb-ohci");
 
 #ifdef CONFIG_OF
-static const struct of_device_id usb_hcd_nxp_match[] = {
+static const struct of_device_id ohci_hcd_nxp_match[] = {
 	{ .compatible = "nxp,ohci-nxp" },
 	{},
 };
-MODULE_DEVICE_TABLE(of, usb_hcd_nxp_match);
+MODULE_DEVICE_TABLE(of, ohci_hcd_nxp_match);
 #endif
 
-static struct platform_driver usb_hcd_nxp_driver = {
+static struct platform_driver ohci_hcd_nxp_driver = {
 	.driver = {
 		.name = "usb-ohci",
 		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(usb_hcd_nxp_match),
+		.of_match_table = of_match_ptr(ohci_hcd_nxp_match),
 	},
-	.probe = usb_hcd_nxp_probe,
-	.remove = usb_hcd_nxp_remove,
+	.probe = ohci_hcd_nxp_probe,
+	.remove = ohci_hcd_nxp_remove,
 };
 
+static int __init ohci_nxp_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+
+	ohci_init_driver(&ohci_nxp_hc_driver, NULL);
+	return platform_driver_register(&ohci_hcd_nxp_driver);
+}
+module_init(ohci_nxp_init);
+
+static void __exit ohci_nxp_cleanup(void)
+{
+	platform_driver_unregister(&ohci_hcd_nxp_driver);
+}
+module_exit(ohci_nxp_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL v2");
-- 
cgit 


From e2404434b6c2f98e6accc3fb220a508edb5ee87a Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Sat, 21 Sep 2013 16:38:45 +0530
Subject: USB: OHCI: make ohci-ep93xx a separate driver

Separate the OHCI EP93XX host controller driver from ohci-hcd
host code so that it can be built as a separate driver module.
This work is part of enabling multi-platform kernels on ARM.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Deepak Saxena <dsaxena@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/Kconfig       |  8 +++++
 drivers/usb/host/Makefile      |  1 +
 drivers/usb/host/ohci-ep93xx.c | 72 ++++++++++++++++++------------------------
 drivers/usb/host/ohci-hcd.c    | 18 -----------
 4 files changed, 40 insertions(+), 59 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 74ca887eabce..31a431afad47 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -397,6 +397,14 @@ config USB_OHCI_HCD_LPC32XX
           Enables support for the on-chip OHCI controller on
           NXP chips.
 
+config USB_OHCI_HCD_EP93XX
+	tristate "Support for EP93XX on-chip OHCI USB controller"
+	depends on USB_OHCI_HCD && ARCH_EP93XX
+	default y
+	---help---
+	  Enables support for the on-chip OHCI controller on
+	  EP93XX chips.
+
 config USB_OHCI_HCD_AT91
         tristate "Support for Atmel on-chip OHCI USB controller"
         depends on USB_OHCI_HCD && ARCH_AT91
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index db9416f55f26..68b148c9f66c 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -54,6 +54,7 @@ obj-$(CONFIG_USB_OHCI_HCD_SPEAR)	+= ohci-spear.o
 obj-$(CONFIG_USB_OHCI_HCD_AT91)	+= ohci-at91.o
 obj-$(CONFIG_USB_OHCI_HCD_S3C2410)	+= ohci-s3c2410.o
 obj-$(CONFIG_USB_OHCI_HCD_LPC32XX)	+= ohci-nxp.o
+obj-$(CONFIG_USB_OHCI_HCD_EP93XX)	+= ohci-ep93xx.o
 
 obj-$(CONFIG_USB_UHCI_HCD)	+= uhci-hcd.o
 obj-$(CONFIG_USB_FHCI_HCD)	+= fhci.o
diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c
index 84a20d5223b9..492f681c70f2 100644
--- a/drivers/usb/host/ohci-ep93xx.c
+++ b/drivers/usb/host/ohci-ep93xx.c
@@ -25,50 +25,23 @@
 
 #include <linux/clk.h>
 #include <linux/device.h>
-#include <linux/signal.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/signal.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
 
-static struct clk *usb_host_clock;
+#include "ohci.h"
 
-static int ohci_ep93xx_start(struct usb_hcd *hcd)
-{
-	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
-	int ret;
+#define DRIVER_DESC "OHCI EP93xx driver"
 
-	if ((ret = ohci_init(ohci)) < 0)
-		return ret;
+static const char hcd_name[] = "ohci-ep93xx";
 
-	if ((ret = ohci_run(ohci)) < 0) {
-		dev_err(hcd->self.controller, "can't start %s\n",
-			hcd->self.bus_name);
-		ohci_stop(hcd);
-		return ret;
-	}
+static struct hc_driver __read_mostly ohci_ep93xx_hc_driver;
 
-	return 0;
-}
-
-static struct hc_driver ohci_ep93xx_hc_driver = {
-	.description		= hcd_name,
-	.product_desc		= "EP93xx OHCI",
-	.hcd_priv_size		= sizeof(struct ohci_hcd),
-	.irq			= ohci_irq,
-	.flags			= HCD_USB11 | HCD_MEMORY,
-	.start			= ohci_ep93xx_start,
-	.stop			= ohci_stop,
-	.shutdown		= ohci_shutdown,
-	.urb_enqueue		= ohci_urb_enqueue,
-	.urb_dequeue		= ohci_urb_dequeue,
-	.endpoint_disable	= ohci_endpoint_disable,
-	.get_frame_number	= ohci_get_frame,
-	.hub_status_data	= ohci_hub_status_data,
-	.hub_control		= ohci_hub_control,
-#ifdef CONFIG_PM
-	.bus_suspend		= ohci_bus_suspend,
-	.bus_resume		= ohci_bus_resume,
-#endif
-	.start_port_reset	= ohci_start_port_reset,
-};
+static struct clk *usb_host_clock;
 
 static int ohci_hcd_ep93xx_drv_probe(struct platform_device *pdev)
 {
@@ -109,8 +82,6 @@ static int ohci_hcd_ep93xx_drv_probe(struct platform_device *pdev)
 
 	clk_enable(usb_host_clock);
 
-	ohci_hcd_init(hcd_to_ohci(hcd));
-
 	ret = usb_add_hcd(hcd, irq, 0);
 	if (ret)
 		goto err_clk_disable;
@@ -166,7 +137,6 @@ static int ohci_hcd_ep93xx_drv_resume(struct platform_device *pdev)
 }
 #endif
 
-
 static struct platform_driver ohci_hcd_ep93xx_driver = {
 	.probe		= ohci_hcd_ep93xx_drv_probe,
 	.remove		= ohci_hcd_ep93xx_drv_remove,
@@ -181,4 +151,24 @@ static struct platform_driver ohci_hcd_ep93xx_driver = {
 	},
 };
 
+static int __init ohci_ep93xx_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+
+	ohci_init_driver(&ohci_ep93xx_hc_driver, NULL);
+	return platform_driver_register(&ohci_hcd_ep93xx_driver);
+}
+module_init(ohci_ep93xx_init);
+
+static void __exit ohci_ep93xx_cleanup(void)
+{
+	platform_driver_unregister(&ohci_hcd_ep93xx_driver);
+}
+module_exit(ohci_ep93xx_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:ep93xx-ohci");
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index c51519248db9..2ee31712c13f 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1182,11 +1182,6 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER		ohci_hcd_pxa27x_driver
 #endif
 
-#ifdef CONFIG_ARCH_EP93XX
-#include "ohci-ep93xx.c"
-#define EP93XX_PLATFORM_DRIVER	ohci_hcd_ep93xx_driver
-#endif
-
 #ifdef CONFIG_ARCH_DAVINCI_DA8XX
 #include "ohci-da8xx.c"
 #define DAVINCI_PLATFORM_DRIVER	ohci_hcd_da8xx_driver
@@ -1283,12 +1278,6 @@ static int __init ohci_hcd_mod_init(void)
 		goto error_tmio;
 #endif
 
-#ifdef EP93XX_PLATFORM_DRIVER
-	retval = platform_driver_register(&EP93XX_PLATFORM_DRIVER);
-	if (retval < 0)
-		goto error_ep93xx;
-#endif
-
 #ifdef DAVINCI_PLATFORM_DRIVER
 	retval = platform_driver_register(&DAVINCI_PLATFORM_DRIVER);
 	if (retval < 0)
@@ -1302,10 +1291,6 @@ static int __init ohci_hcd_mod_init(void)
 	platform_driver_unregister(&DAVINCI_PLATFORM_DRIVER);
  error_davinci:
 #endif
-#ifdef EP93XX_PLATFORM_DRIVER
-	platform_driver_unregister(&EP93XX_PLATFORM_DRIVER);
- error_ep93xx:
-#endif
 #ifdef TMIO_OHCI_DRIVER
 	platform_driver_unregister(&TMIO_OHCI_DRIVER);
  error_tmio:
@@ -1346,9 +1331,6 @@ static void __exit ohci_hcd_mod_exit(void)
 #ifdef DAVINCI_PLATFORM_DRIVER
 	platform_driver_unregister(&DAVINCI_PLATFORM_DRIVER);
 #endif
-#ifdef EP93XX_PLATFORM_DRIVER
-	platform_driver_unregister(&EP93XX_PLATFORM_DRIVER);
-#endif
 #ifdef TMIO_OHCI_DRIVER
 	platform_driver_unregister(&TMIO_OHCI_DRIVER);
 #endif
-- 
cgit 


From b8ad5c370640886792487be7835810f204388c95 Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Sat, 21 Sep 2013 16:38:46 +0530
Subject: USB: OHCI: make ohci-pxa27x a separate driver

Separate the  OHCI pxa27x/pxa3xx host controller driver from
ohci-hcd host code so that it can be built as a separate driver
module. This work is part of enabling multi-platform kernels on
ARM.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Deepak Saxena <dsaxena@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/Kconfig       |   8 ++
 drivers/usb/host/Makefile      |   1 +
 drivers/usb/host/ohci-hcd.c    |   5 -
 drivers/usb/host/ohci-pxa27x.c | 240 ++++++++++++++++++-----------------------
 4 files changed, 113 insertions(+), 141 deletions(-)

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 31a431afad47..70cb1a94beff 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -405,6 +405,14 @@ config USB_OHCI_HCD_EP93XX
 	  Enables support for the on-chip OHCI controller on
 	  EP93XX chips.
 
+config USB_OHCI_HCD_PXA27X
+	tristate "Support for PXA27X/PXA3XX on-chip OHCI USB controller"
+	depends on USB_OHCI_HCD && (PXA27x || PXA3xx)
+	default y
+	---help---
+	  Enables support for the on-chip OHCI controller on
+	  PXA27x/PXA3xx chips.
+
 config USB_OHCI_HCD_AT91
         tristate "Support for Atmel on-chip OHCI USB controller"
         depends on USB_OHCI_HCD && ARCH_AT91
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 68b148c9f66c..0b9fdeecf683 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -55,6 +55,7 @@ obj-$(CONFIG_USB_OHCI_HCD_AT91)	+= ohci-at91.o
 obj-$(CONFIG_USB_OHCI_HCD_S3C2410)	+= ohci-s3c2410.o
 obj-$(CONFIG_USB_OHCI_HCD_LPC32XX)	+= ohci-nxp.o
 obj-$(CONFIG_USB_OHCI_HCD_EP93XX)	+= ohci-ep93xx.o
+obj-$(CONFIG_USB_OHCI_HCD_PXA27X)	+= ohci-pxa27x.o
 
 obj-$(CONFIG_USB_UHCI_HCD)	+= uhci-hcd.o
 obj-$(CONFIG_USB_FHCI_HCD)	+= fhci.o
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 2ee31712c13f..c6fff6e68213 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1177,11 +1177,6 @@ MODULE_LICENSE ("GPL");
 #define SA1111_DRIVER		ohci_hcd_sa1111_driver
 #endif
 
-#if defined(CONFIG_PXA27x) || defined(CONFIG_PXA3xx)
-#include "ohci-pxa27x.c"
-#define PLATFORM_DRIVER		ohci_hcd_pxa27x_driver
-#endif
-
 #ifdef CONFIG_ARCH_DAVINCI_DA8XX
 #include "ohci-da8xx.c"
 #define DAVINCI_PLATFORM_DRIVER	ohci_hcd_da8xx_driver
diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index 93371a235e82..c1b1fa3047be 100644
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -19,15 +19,26 @@
  * This file is licenced under the GPL.
  */
 
-#include <linux/device.h>
-#include <linux/signal.h>
-#include <linux/platform_device.h>
 #include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/of_platform.h>
 #include <linux/of_gpio.h>
-#include <mach/hardware.h>
 #include <linux/platform_data/usb-ohci-pxa27x.h>
 #include <linux/platform_data/usb-pxa3xx-ulpi.h>
+#include <linux/platform_device.h>
+#include <linux/signal.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+#include <linux/usb/otg.h>
+
+#include <mach/hardware.h>
+
+#include "ohci.h"
+
+#define DRIVER_DESC "OHCI PXA27x/PXA3x driver"
 
 /*
  * UHC: USB Host Controller (OHCI-like) register definitions
@@ -101,16 +112,16 @@
 
 #define PXA_UHC_MAX_PORTNUM    3
 
-struct pxa27x_ohci {
-	/* must be 1st member here for hcd_to_ohci() to work */
-	struct ohci_hcd ohci;
+static const char hcd_name[] = "ohci-pxa27x";
 
-	struct device	*dev;
+static struct hc_driver __read_mostly ohci_pxa27x_hc_driver;
+
+struct pxa27x_ohci {
 	struct clk	*clk;
 	void __iomem	*mmio_base;
 };
 
-#define to_pxa27x_ohci(hcd)	(struct pxa27x_ohci *)hcd_to_ohci(hcd)
+#define to_pxa27x_ohci(hcd)	(struct pxa27x_ohci *)(hcd_to_ohci(hcd)->priv)
 
 /*
   PMM_NPS_MODE -- PMM Non-power switching mode
@@ -122,10 +133,10 @@ struct pxa27x_ohci {
   PMM_PERPORT_MODE -- PMM per port switching mode
       Ports are powered individually.
  */
-static int pxa27x_ohci_select_pmm(struct pxa27x_ohci *ohci, int mode)
+static int pxa27x_ohci_select_pmm(struct pxa27x_ohci *pxa_ohci, int mode)
 {
-	uint32_t uhcrhda = __raw_readl(ohci->mmio_base + UHCRHDA);
-	uint32_t uhcrhdb = __raw_readl(ohci->mmio_base + UHCRHDB);
+	uint32_t uhcrhda = __raw_readl(pxa_ohci->mmio_base + UHCRHDA);
+	uint32_t uhcrhdb = __raw_readl(pxa_ohci->mmio_base + UHCRHDB);
 
 	switch (mode) {
 	case PMM_NPS_MODE:
@@ -149,20 +160,18 @@ static int pxa27x_ohci_select_pmm(struct pxa27x_ohci *ohci, int mode)
 		uhcrhda |= RH_A_NPS;
 	}
 
-	__raw_writel(uhcrhda, ohci->mmio_base + UHCRHDA);
-	__raw_writel(uhcrhdb, ohci->mmio_base + UHCRHDB);
+	__raw_writel(uhcrhda, pxa_ohci->mmio_base + UHCRHDA);
+	__raw_writel(uhcrhdb, pxa_ohci->mmio_base + UHCRHDB);
 	return 0;
 }
 
-extern int usb_disabled(void);
-
 /*-------------------------------------------------------------------------*/
 
-static inline void pxa27x_setup_hc(struct pxa27x_ohci *ohci,
+static inline void pxa27x_setup_hc(struct pxa27x_ohci *pxa_ohci,
 				   struct pxaohci_platform_data *inf)
 {
-	uint32_t uhchr = __raw_readl(ohci->mmio_base + UHCHR);
-	uint32_t uhcrhda = __raw_readl(ohci->mmio_base + UHCRHDA);
+	uint32_t uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR);
+	uint32_t uhcrhda = __raw_readl(pxa_ohci->mmio_base + UHCRHDA);
 
 	if (inf->flags & ENABLE_PORT1)
 		uhchr &= ~UHCHR_SSEP1;
@@ -194,17 +203,17 @@ static inline void pxa27x_setup_hc(struct pxa27x_ohci *ohci,
 		uhcrhda |= UHCRHDA_POTPGT(inf->power_on_delay / 2);
 	}
 
-	__raw_writel(uhchr, ohci->mmio_base + UHCHR);
-	__raw_writel(uhcrhda, ohci->mmio_base + UHCRHDA);
+	__raw_writel(uhchr, pxa_ohci->mmio_base + UHCHR);
+	__raw_writel(uhcrhda, pxa_ohci->mmio_base + UHCRHDA);
 }
 
-static inline void pxa27x_reset_hc(struct pxa27x_ohci *ohci)
+static inline void pxa27x_reset_hc(struct pxa27x_ohci *pxa_ohci)
 {
-	uint32_t uhchr = __raw_readl(ohci->mmio_base + UHCHR);
+	uint32_t uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR);
 
-	__raw_writel(uhchr | UHCHR_FHR, ohci->mmio_base + UHCHR);
+	__raw_writel(uhchr | UHCHR_FHR, pxa_ohci->mmio_base + UHCHR);
 	udelay(11);
-	__raw_writel(uhchr & ~UHCHR_FHR, ohci->mmio_base + UHCHR);
+	__raw_writel(uhchr & ~UHCHR_FHR, pxa_ohci->mmio_base + UHCHR);
 }
 
 #ifdef CONFIG_PXA27x
@@ -213,25 +222,26 @@ extern void pxa27x_clear_otgph(void);
 #define pxa27x_clear_otgph()	do {} while (0)
 #endif
 
-static int pxa27x_start_hc(struct pxa27x_ohci *ohci, struct device *dev)
+static int pxa27x_start_hc(struct pxa27x_ohci *pxa_ohci, struct device *dev)
 {
 	int retval = 0;
 	struct pxaohci_platform_data *inf;
 	uint32_t uhchr;
+	struct usb_hcd *hcd = dev_get_drvdata(dev);
 
 	inf = dev_get_platdata(dev);
 
-	clk_prepare_enable(ohci->clk);
+	clk_prepare_enable(pxa_ohci->clk);
 
-	pxa27x_reset_hc(ohci);
+	pxa27x_reset_hc(pxa_ohci);
 
-	uhchr = __raw_readl(ohci->mmio_base + UHCHR) | UHCHR_FSBIR;
-	__raw_writel(uhchr, ohci->mmio_base + UHCHR);
+	uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR) | UHCHR_FSBIR;
+	__raw_writel(uhchr, pxa_ohci->mmio_base + UHCHR);
 
-	while (__raw_readl(ohci->mmio_base + UHCHR) & UHCHR_FSBIR)
+	while (__raw_readl(pxa_ohci->mmio_base + UHCHR) & UHCHR_FSBIR)
 		cpu_relax();
 
-	pxa27x_setup_hc(ohci, inf);
+	pxa27x_setup_hc(pxa_ohci, inf);
 
 	if (inf->init)
 		retval = inf->init(dev);
@@ -240,38 +250,39 @@ static int pxa27x_start_hc(struct pxa27x_ohci *ohci, struct device *dev)
 		return retval;
 
 	if (cpu_is_pxa3xx())
-		pxa3xx_u2d_start_hc(&ohci_to_hcd(&ohci->ohci)->self);
+		pxa3xx_u2d_start_hc(&hcd->self);
 
-	uhchr = __raw_readl(ohci->mmio_base + UHCHR) & ~UHCHR_SSE;
-	__raw_writel(uhchr, ohci->mmio_base + UHCHR);
-	__raw_writel(UHCHIE_UPRIE | UHCHIE_RWIE, ohci->mmio_base + UHCHIE);
+	uhchr = __raw_readl(pxa_ohci->mmio_base + UHCHR) & ~UHCHR_SSE;
+	__raw_writel(uhchr, pxa_ohci->mmio_base + UHCHR);
+	__raw_writel(UHCHIE_UPRIE | UHCHIE_RWIE, pxa_ohci->mmio_base + UHCHIE);
 
 	/* Clear any OTG Pin Hold */
 	pxa27x_clear_otgph();
 	return 0;
 }
 
-static void pxa27x_stop_hc(struct pxa27x_ohci *ohci, struct device *dev)
+static void pxa27x_stop_hc(struct pxa27x_ohci *pxa_ohci, struct device *dev)
 {
 	struct pxaohci_platform_data *inf;
+	struct usb_hcd *hcd = dev_get_drvdata(dev);
 	uint32_t uhccoms;
 
 	inf = dev_get_platdata(dev);
 
 	if (cpu_is_pxa3xx())
-		pxa3xx_u2d_stop_hc(&ohci_to_hcd(&ohci->ohci)->self);
+		pxa3xx_u2d_stop_hc(&hcd->self);
 
 	if (inf->exit)
 		inf->exit(dev);
 
-	pxa27x_reset_hc(ohci);
+	pxa27x_reset_hc(pxa_ohci);
 
 	/* Host Controller Reset */
-	uhccoms = __raw_readl(ohci->mmio_base + UHCCOMS) | 0x01;
-	__raw_writel(uhccoms, ohci->mmio_base + UHCCOMS);
+	uhccoms = __raw_readl(pxa_ohci->mmio_base + UHCCOMS) | 0x01;
+	__raw_writel(uhccoms, pxa_ohci->mmio_base + UHCCOMS);
 	udelay(10);
 
-	clk_disable_unprepare(ohci->clk);
+	clk_disable_unprepare(pxa_ohci->clk);
 }
 
 #ifdef CONFIG_OF
@@ -356,7 +367,8 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device
 	int retval, irq;
 	struct usb_hcd *hcd;
 	struct pxaohci_platform_data *inf;
-	struct pxa27x_ohci *ohci;
+	struct pxa27x_ohci *pxa_ohci;
+	struct ohci_hcd *ohci;
 	struct resource *r;
 	struct clk *usb_clk;
 
@@ -409,29 +421,31 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device
 	}
 
 	/* initialize "struct pxa27x_ohci" */
-	ohci = (struct pxa27x_ohci *)hcd_to_ohci(hcd);
-	ohci->dev = &pdev->dev;
-	ohci->clk = usb_clk;
-	ohci->mmio_base = (void __iomem *)hcd->regs;
+	pxa_ohci = to_pxa27x_ohci(hcd);
+	pxa_ohci->clk = usb_clk;
+	pxa_ohci->mmio_base = (void __iomem *)hcd->regs;
 
-	if ((retval = pxa27x_start_hc(ohci, &pdev->dev)) < 0) {
+	retval = pxa27x_start_hc(pxa_ohci, &pdev->dev);
+	if (retval < 0) {
 		pr_debug("pxa27x_start_hc failed");
 		goto err3;
 	}
 
 	/* Select Power Management Mode */
-	pxa27x_ohci_select_pmm(ohci, inf->port_mode);
+	pxa27x_ohci_select_pmm(pxa_ohci, inf->port_mode);
 
 	if (inf->power_budget)
 		hcd->power_budget = inf->power_budget;
 
-	ohci_hcd_init(hcd_to_ohci(hcd));
+	/* The value of NDP in roothub_a is incorrect on this hardware */
+	ohci = hcd_to_ohci(hcd);
+	ohci->num_ports = 3;
 
 	retval = usb_add_hcd(hcd, irq, 0);
 	if (retval == 0)
 		return retval;
 
-	pxa27x_stop_hc(ohci, &pdev->dev);
+	pxa27x_stop_hc(pxa_ohci, &pdev->dev);
  err3:
 	iounmap(hcd->regs);
  err2:
@@ -459,88 +473,18 @@ int usb_hcd_pxa27x_probe (const struct hc_driver *driver, struct platform_device
  */
 void usb_hcd_pxa27x_remove (struct usb_hcd *hcd, struct platform_device *pdev)
 {
-	struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd);
+	struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd);
 
 	usb_remove_hcd(hcd);
-	pxa27x_stop_hc(ohci, &pdev->dev);
+	pxa27x_stop_hc(pxa_ohci, &pdev->dev);
 	iounmap(hcd->regs);
 	release_mem_region(hcd->rsrc_start, hcd->rsrc_len);
+	clk_put(pxa_ohci->clk);
 	usb_put_hcd(hcd);
-	clk_put(ohci->clk);
-}
-
-/*-------------------------------------------------------------------------*/
-
-static int
-ohci_pxa27x_start (struct usb_hcd *hcd)
-{
-	struct ohci_hcd	*ohci = hcd_to_ohci (hcd);
-	int		ret;
-
-	ohci_dbg (ohci, "ohci_pxa27x_start, ohci:%p", ohci);
-
-	/* The value of NDP in roothub_a is incorrect on this hardware */
-	ohci->num_ports = 3;
-
-	if ((ret = ohci_init(ohci)) < 0)
-		return ret;
-
-	if ((ret = ohci_run (ohci)) < 0) {
-		dev_err(hcd->self.controller, "can't start %s",
-			hcd->self.bus_name);
-		ohci_stop (hcd);
-		return ret;
-	}
-
-	return 0;
 }
 
 /*-------------------------------------------------------------------------*/
 
-static const struct hc_driver ohci_pxa27x_hc_driver = {
-	.description =		hcd_name,
-	.product_desc =		"PXA27x OHCI",
-	.hcd_priv_size =	sizeof(struct pxa27x_ohci),
-
-	/*
-	 * generic hardware linkage
-	 */
-	.irq =			ohci_irq,
-	.flags =		HCD_USB11 | HCD_MEMORY,
-
-	/*
-	 * basic lifecycle operations
-	 */
-	.start =		ohci_pxa27x_start,
-	.stop =			ohci_stop,
-	.shutdown =		ohci_shutdown,
-
-	/*
-	 * managing i/o requests and associated device resources
-	 */
-	.urb_enqueue =		ohci_urb_enqueue,
-	.urb_dequeue =		ohci_urb_dequeue,
-	.endpoint_disable =	ohci_endpoint_disable,
-
-	/*
-	 * scheduling support
-	 */
-	.get_frame_number =	ohci_get_frame,
-
-	/*
-	 * root hub support
-	 */
-	.hub_status_data =	ohci_hub_status_data,
-	.hub_control =		ohci_hub_control,
-#ifdef  CONFIG_PM
-	.bus_suspend =		ohci_bus_suspend,
-	.bus_resume =		ohci_bus_resume,
-#endif
-	.start_port_reset =	ohci_start_port_reset,
-};
-
-/*-------------------------------------------------------------------------*/
-
 static int ohci_hcd_pxa27x_drv_probe(struct platform_device *pdev)
 {
 	pr_debug ("In ohci_hcd_pxa27x_drv_probe");
@@ -563,32 +507,35 @@ static int ohci_hcd_pxa27x_drv_remove(struct platform_device *pdev)
 static int ohci_hcd_pxa27x_drv_suspend(struct device *dev)
 {
 	struct usb_hcd *hcd = dev_get_drvdata(dev);
-	struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd);
+	struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd);
+	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
 
-	if (time_before(jiffies, ohci->ohci.next_statechange))
+	if (time_before(jiffies, ohci->next_statechange))
 		msleep(5);
-	ohci->ohci.next_statechange = jiffies;
+	ohci->next_statechange = jiffies;
 
-	pxa27x_stop_hc(ohci, dev);
+	pxa27x_stop_hc(pxa_ohci, dev);
 	return 0;
 }
 
 static int ohci_hcd_pxa27x_drv_resume(struct device *dev)
 {
 	struct usb_hcd *hcd = dev_get_drvdata(dev);
-	struct pxa27x_ohci *ohci = to_pxa27x_ohci(hcd);
+	struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd);
 	struct pxaohci_platform_data *inf = dev_get_platdata(dev);
+	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
 	int status;
 
-	if (time_before(jiffies, ohci->ohci.next_statechange))
+	if (time_before(jiffies, ohci->next_statechange))
 		msleep(5);
-	ohci->ohci.next_statechange = jiffies;
+	ohci->next_statechange = jiffies;
 
-	if ((status = pxa27x_start_hc(ohci, dev)) < 0)
+	status = pxa27x_start_hc(pxa_ohci, dev);
+	if (status < 0)
 		return status;
 
 	/* Select Power Management Mode */
-	pxa27x_ohci_select_pmm(ohci, inf->port_mode);
+	pxa27x_ohci_select_pmm(pxa_ohci, inf->port_mode);
 
 	ohci_resume(hcd, false);
 	return 0;
@@ -600,9 +547,6 @@ static const struct dev_pm_ops ohci_hcd_pxa27x_pm_ops = {
 };
 #endif
 
-/* work with hotplug and coldplug */
-MODULE_ALIAS("platform:pxa27x-ohci");
-
 static struct platform_driver ohci_hcd_pxa27x_driver = {
 	.probe		= ohci_hcd_pxa27x_drv_probe,
 	.remove		= ohci_hcd_pxa27x_drv_remove,
@@ -617,3 +561,27 @@ static struct platform_driver ohci_hcd_pxa27x_driver = {
 	},
 };
 
+static const struct ohci_driver_overrides pxa27x_overrides __initconst = {
+	.extra_priv_size =      sizeof(struct pxa27x_ohci),
+};
+
+static int __init ohci_pxa27x_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+	ohci_init_driver(&ohci_pxa27x_hc_driver, &pxa27x_overrides);
+	return platform_driver_register(&ohci_hcd_pxa27x_driver);
+}
+module_init(ohci_pxa27x_init);
+
+static void __exit ohci_pxa27x_cleanup(void)
+{
+	platform_driver_unregister(&ohci_hcd_pxa27x_driver);
+}
+module_exit(ohci_pxa27x_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:pxa27x-ohci");
-- 
cgit 


From d6173df35f2dbd0e11f2361fc979ebf2e53cb6cc Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Thu, 26 Sep 2013 19:36:11 +0100
Subject: ASoC: si476x: Remove custom register I/O implementation

The current si476x I/O implementation wraps the regmap for the core with
functions that make the register map cache only when the device is powered
down. This implementation appears to be incomplete since there is no code
to synchronise the cache so writes done while the core is powered down
will be ignored, the device will only be configured if it is powered.

A better and more idiomatic approach would be to have the MFD manage the
cache, making the device cache only when it powers things down. This also
allows ASoC to use the standard regmap helpers for the device which helps
remove the ASoC custom ones so do convert to do that.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/si476x.c | 46 +---------------------------------------------
 1 file changed, 1 insertion(+), 45 deletions(-)

diff --git a/sound/soc/codecs/si476x.c b/sound/soc/codecs/si476x.c
index 38f3b105c17d..03645ce42063 100644
--- a/sound/soc/codecs/si476x.c
+++ b/sound/soc/codecs/si476x.c
@@ -60,48 +60,6 @@ enum si476x_pcm_format {
 	SI476X_PCM_FORMAT_S24_LE	= 6,
 };
 
-static unsigned int si476x_codec_read(struct snd_soc_codec *codec,
-				      unsigned int reg)
-{
-	int err;
-	unsigned int val;
-	struct si476x_core *core = codec->control_data;
-
-	si476x_core_lock(core);
-	if (!si476x_core_is_powered_up(core))
-		regcache_cache_only(core->regmap, true);
-
-	err = regmap_read(core->regmap, reg, &val);
-
-	if (!si476x_core_is_powered_up(core))
-		regcache_cache_only(core->regmap, false);
-	si476x_core_unlock(core);
-
-	if (err < 0)
-		return err;
-
-	return val;
-}
-
-static int si476x_codec_write(struct snd_soc_codec *codec,
-			      unsigned int reg, unsigned int val)
-{
-	int err;
-	struct si476x_core *core = codec->control_data;
-
-	si476x_core_lock(core);
-	if (!si476x_core_is_powered_up(core))
-		regcache_cache_only(core->regmap, true);
-
-	err = regmap_write(core->regmap, reg, val);
-
-	if (!si476x_core_is_powered_up(core))
-		regcache_cache_only(core->regmap, false);
-	si476x_core_unlock(core);
-
-	return err;
-}
-
 static const struct snd_soc_dapm_widget si476x_dapm_widgets[] = {
 SND_SOC_DAPM_OUTPUT("LOUT"),
 SND_SOC_DAPM_OUTPUT("ROUT"),
@@ -239,7 +197,7 @@ static int si476x_codec_hw_params(struct snd_pcm_substream *substream,
 
 static int si476x_codec_probe(struct snd_soc_codec *codec)
 {
-	codec->control_data = i2c_mfd_cell_to_core(codec->dev);
+	codec->control_data = dev_get_regmap(codec->dev->parent, NULL);
 	return 0;
 }
 
@@ -268,8 +226,6 @@ static struct snd_soc_dai_driver si476x_dai = {
 
 static struct snd_soc_codec_driver soc_codec_dev_si476x = {
 	.probe  = si476x_codec_probe,
-	.read   = si476x_codec_read,
-	.write  = si476x_codec_write,
 	.dapm_widgets = si476x_dapm_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(si476x_dapm_widgets),
 	.dapm_routes = si476x_dapm_routes,
-- 
cgit 


From b5eafc6f07c95e9f3dd047e72737449cb03c9956 Mon Sep 17 00:00:00 2001
From: Masoud Sharbiani <msharbiani@twitter.com>
Date: Thu, 26 Sep 2013 10:30:43 -0700
Subject: x86/reboot: Remove the duplicate C6100 entry in the reboot quirks
 list

Two entries for the same system type were added, with two different vendor
names: 'Dell' and 'Dell, Inc.'.

Since a prefix match is being used by the DMI parsing code, we can eliminate
the latter as redundant.

Reported-by: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Masoud Sharbiani <msharbiani@twitter.com>
Cc: holt@sgi.com
Link: http://lkml.kernel.org/r/1380216643-4683-1-git-send-email-masoud.sharbiani@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/reboot.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index f0783a68db11..d9333a404685 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -359,14 +359,6 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = {
 		},
 	},
 	{	/* Handle problems with rebooting on the Dell PowerEdge C6100. */
-		.callback = set_pci_reboot,
-		.ident = "Dell PowerEdge C6100",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "C6100"),
-		},
-	},
-	{	/* Some C6100 machines were shipped with vendor being 'Dell'. */
 		.callback = set_pci_reboot,
 		.ident = "Dell PowerEdge C6100",
 		.matches = {
-- 
cgit 


From 40b3dc6da05c4ac0e317723a22eaa807c4b98648 Mon Sep 17 00:00:00 2001
From: Fengguang Wu <fengguang.wu@intel.com>
Date: Thu, 26 Sep 2013 11:56:44 -0700
Subject: usb: pci-quirks: amd_chipset_sb_type_init() can be static

Acked-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/pci-quirks.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 17eb1916e65e..9eec463c73c5 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -118,7 +118,7 @@ static DEFINE_SPINLOCK(amd_lock);
  *
  * Returns: 1 if it is an AMD chipset, 0 otherwise.
  */
-int amd_chipset_sb_type_init(struct amd_chipset_info *pinfo)
+static int amd_chipset_sb_type_init(struct amd_chipset_info *pinfo)
 {
 	u8 rev = 0;
 	pinfo->sb_type.gen = AMD_CHIPSET_UNKNOWN;
-- 
cgit 


From 00d5f289b26a50e75c5e0ac13d842885fc4c6c8c Mon Sep 17 00:00:00 2001
From: Fengguang Wu <fengguang.wu@intel.com>
Date: Thu, 26 Sep 2013 11:56:50 -0700
Subject: usb: core: usb_amd_resume_quirk() can be static

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/quirks.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 74d18c8b7a88..d120a0887202 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -197,7 +197,7 @@ static bool usb_match_any_interface(struct usb_device *udev,
 	return false;
 }
 
-int usb_amd_resume_quirk(struct usb_device *udev)
+static int usb_amd_resume_quirk(struct usb_device *udev)
 {
 	struct usb_hcd *hcd;
 
-- 
cgit 


From c2275d2fa587712d285a4db97a68322a233ad2c8 Mon Sep 17 00:00:00 2001
From: Chanwoo Choi <cw00.choi@samsung.com>
Date: Fri, 23 Aug 2013 10:21:37 +0900
Subject: extcon: Fix up 80 column coding style issues

This patch fix 80 column coding sytle issues by using checkpatch script.

Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/extcon/extcon-arizona.c  |  25 +++++---
 drivers/extcon/extcon-class.c    |   6 +-
 drivers/extcon/extcon-max77693.c | 129 +++++++++++++++++++++------------------
 drivers/extcon/extcon-max8997.c  |   6 +-
 4 files changed, 94 insertions(+), 72 deletions(-)

diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index e55713083c78..9431092f52fc 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -738,8 +738,8 @@ err:
 static void arizona_micd_timeout_work(struct work_struct *work)
 {
 	struct arizona_extcon_info *info = container_of(work,
-							struct arizona_extcon_info,
-							micd_timeout_work.work);
+						struct arizona_extcon_info,
+						micd_timeout_work.work);
 
 	mutex_lock(&info->lock);
 
@@ -756,8 +756,8 @@ static void arizona_micd_timeout_work(struct work_struct *work)
 static void arizona_micd_detect(struct work_struct *work)
 {
 	struct arizona_extcon_info *info = container_of(work,
-							struct arizona_extcon_info,
-							micd_detect_work.work);
+						struct arizona_extcon_info,
+						micd_detect_work.work);
 	struct arizona *arizona = info->arizona;
 	unsigned int val = 0, lvl;
 	int ret, i, key;
@@ -769,7 +769,8 @@ static void arizona_micd_detect(struct work_struct *work)
 	for (i = 0; i < 10 && !(val & 0x7fc); i++) {
 		ret = regmap_read(arizona->regmap, ARIZONA_MIC_DETECT_3, &val);
 		if (ret != 0) {
-			dev_err(arizona->dev, "Failed to read MICDET: %d\n", ret);
+			dev_err(arizona->dev,
+				"Failed to read MICDET: %d\n", ret);
 			mutex_unlock(&info->lock);
 			return;
 		}
@@ -777,7 +778,8 @@ static void arizona_micd_detect(struct work_struct *work)
 		dev_dbg(arizona->dev, "MICDET: %x\n", val);
 
 		if (!(val & ARIZONA_MICD_VALID)) {
-			dev_warn(arizona->dev, "Microphone detection state invalid\n");
+			dev_warn(arizona->dev,
+				 "Microphone detection state invalid\n");
 			mutex_unlock(&info->lock);
 			return;
 		}
@@ -925,8 +927,8 @@ static irqreturn_t arizona_micdet(int irq, void *data)
 static void arizona_hpdet_work(struct work_struct *work)
 {
 	struct arizona_extcon_info *info = container_of(work,
-							struct arizona_extcon_info,
-							hpdet_work.work);
+						struct arizona_extcon_info,
+						hpdet_work.work);
 
 	mutex_lock(&info->lock);
 	arizona_start_hpdet_acc_id(info);
@@ -973,10 +975,13 @@ static irqreturn_t arizona_jackdet(int irq, void *data)
 					   &info->hpdet_work,
 					   msecs_to_jiffies(HPDET_DEBOUNCE));
 
-		if (cancelled_mic)
+		if (cancelled_mic) {
+			int micd_timeout = info->micd_timeout;
+
 			queue_delayed_work(system_power_efficient_wq,
 					   &info->micd_timeout_work,
-					   msecs_to_jiffies(info->micd_timeout));
+					   msecs_to_jiffies(micd_timeout));
+		}
 
 		goto out;
 	}
diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c
index 148382faded9..17544320d1a6 100644
--- a/drivers/extcon/extcon-class.c
+++ b/drivers/extcon/extcon-class.c
@@ -452,7 +452,8 @@ int extcon_register_interest(struct extcon_specific_cable_nb *obj,
 		if (!obj->edev)
 			return -ENODEV;
 
-		obj->cable_index = extcon_find_cable_index(obj->edev, cable_name);
+		obj->cable_index = extcon_find_cable_index(obj->edev,
+							  cable_name);
 		if (obj->cable_index < 0)
 			return obj->cable_index;
 
@@ -460,7 +461,8 @@ int extcon_register_interest(struct extcon_specific_cable_nb *obj,
 
 		obj->internal_nb.notifier_call = _call_per_cable;
 
-		return raw_notifier_chain_register(&obj->edev->nh, &obj->internal_nb);
+		return raw_notifier_chain_register(&obj->edev->nh,
+						  &obj->internal_nb);
 	} else {
 		struct class_dev_iter iter;
 		struct extcon_dev *extd;
diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index b56bdaa27d4b..5ee0344f734d 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -189,14 +189,17 @@ enum max77693_muic_acc_type {
 
 	/* The below accessories have same ADC value so ADCLow and
 	   ADC1K bit is used to separate specific accessory */
-	MAX77693_MUIC_GND_USB_OTG = 0x100,	/* ADC:0x0, VBVolot:0, ADCLow:0, ADC1K:0 */
-	MAX77693_MUIC_GND_USB_OTG_VB = 0x104,	/* ADC:0x0, VBVolot:1, ADCLow:0, ADC1K:0 */
-	MAX77693_MUIC_GND_AV_CABLE_LOAD = 0x102,/* ADC:0x0, VBVolot:0, ADCLow:1, ADC1K:0 */
-	MAX77693_MUIC_GND_MHL = 0x103,		/* ADC:0x0, VBVolot:0, ADCLow:1, ADC1K:1 */
-	MAX77693_MUIC_GND_MHL_VB = 0x107,	/* ADC:0x0, VBVolot:1, ADCLow:1, ADC1K:1 */
+						/* ADC|VBVolot|ADCLow|ADC1K| */
+	MAX77693_MUIC_GND_USB_OTG = 0x100,	/* 0x0|      0|     0|    0| */
+	MAX77693_MUIC_GND_USB_OTG_VB = 0x104,	/* 0x0|      1|     0|    0| */
+	MAX77693_MUIC_GND_AV_CABLE_LOAD = 0x102,/* 0x0|      0|     1|    0| */
+	MAX77693_MUIC_GND_MHL = 0x103,		/* 0x0|      0|     1|    1| */
+	MAX77693_MUIC_GND_MHL_VB = 0x107,	/* 0x0|      1|     1|    1| */
 };
 
-/* MAX77693 MUIC device support below list of accessories(external connector) */
+/*
+ * MAX77693 MUIC device support below list of accessories(external connector)
+ */
 enum {
 	EXTCON_CABLE_USB = 0,
 	EXTCON_CABLE_USB_HOST,
@@ -395,12 +398,12 @@ static int max77693_muic_get_cable_type(struct max77693_muic_info *info,
 			vbvolt >>= STATUS2_VBVOLT_SHIFT;
 
 			/**
-			 * [0x1][VBVolt][ADCLow][ADC1K]
-			 * [0x1    0	   0       0  ]	: USB_OTG
-			 * [0x1    1	   0       0  ]	: USB_OTG_VB
-			 * [0x1    0       1       0  ] : Audio Video Cable with load
-			 * [0x1    0       1       1  ] : MHL without charging connector
-			 * [0x1    1       1       1  ] : MHL with charging connector
+			 * [0x1|VBVolt|ADCLow|ADC1K]
+			 * [0x1|     0|     0|    0] USB_OTG
+			 * [0x1|     1|     0|    0] USB_OTG_VB
+			 * [0x1|     0|     1|    0] Audio Video cable with load
+			 * [0x1|     0|     1|    1] MHL without charging cable
+			 * [0x1|     1|     1|    1] MHL with charging cable
 			 */
 			cable_type = ((0x1 << 8)
 					| (vbvolt << 2)
@@ -723,11 +726,11 @@ static int max77693_muic_adc_handler(struct max77693_muic_info *info)
 		if (ret < 0)
 			return ret;
 		break;
-	case MAX77693_MUIC_ADC_REMOTE_S3_BUTTON:	/* DOCK_KEY_PREV */
-	case MAX77693_MUIC_ADC_REMOTE_S7_BUTTON:	/* DOCK_KEY_NEXT */
-	case MAX77693_MUIC_ADC_REMOTE_S9_BUTTON:	/* DOCK_VOL_DOWN */
-	case MAX77693_MUIC_ADC_REMOTE_S10_BUTTON:	/* DOCK_VOL_UP */
-	case MAX77693_MUIC_ADC_REMOTE_S12_BUTTON:	/* DOCK_KEY_PLAY_PAUSE */
+	case MAX77693_MUIC_ADC_REMOTE_S3_BUTTON:      /* DOCK_KEY_PREV */
+	case MAX77693_MUIC_ADC_REMOTE_S7_BUTTON:      /* DOCK_KEY_NEXT */
+	case MAX77693_MUIC_ADC_REMOTE_S9_BUTTON:      /* DOCK_VOL_DOWN */
+	case MAX77693_MUIC_ADC_REMOTE_S10_BUTTON:     /* DOCK_VOL_UP */
+	case MAX77693_MUIC_ADC_REMOTE_S12_BUTTON:     /* DOCK_KEY_PLAY_PAUSE */
 		/*
 		 * Button of DOCK device
 		 * - the Prev/Next/Volume Up/Volume Down/Play-Pause button
@@ -815,19 +818,21 @@ static int max77693_muic_chg_handler(struct max77693_muic_info *info)
 		case MAX77693_MUIC_GND_MHL_VB:
 			/*
 			 * MHL cable with MHL_TA(USB/TA) cable
-			 * - MHL cable include two port(HDMI line and separate micro-
-			 * usb port. When the target connect MHL cable, extcon driver
-			 * check whether MHL_TA(USB/TA) cable is connected. If MHL_TA
-			 * cable is connected, extcon driver notify state to notifiee
-			 * for charging battery.
+			 * - MHL cable include two port(HDMI line and separate
+			 * micro-usb port. When the target connect MHL cable,
+			 * extcon driver check whether MHL_TA(USB/TA) cable is
+			 * connected. If MHL_TA cable is connected, extcon
+			 * driver notify state to notifiee for charging battery.
 			 *
 			 * Features of 'MHL_TA(USB/TA) with MHL cable'
 			 * - Support MHL
-			 * - Support charging through micro-usb port without data connection
+			 * - Support charging through micro-usb port without
+			 *   data connection
 			 */
 			extcon_set_cable_state(info->edev, "MHL_TA", attached);
 			if (!cable_attached)
-				extcon_set_cable_state(info->edev, "MHL", cable_attached);
+				extcon_set_cable_state(info->edev,
+						      "MHL", cable_attached);
 			break;
 		}
 
@@ -839,47 +844,51 @@ static int max77693_muic_chg_handler(struct max77693_muic_info *info)
 		case MAX77693_MUIC_ADC_AV_CABLE_NOLOAD:		/* Dock-Audio */
 			/*
 			 * Dock-Audio device with USB/TA cable
-			 * - Dock device include two port(Dock-Audio and micro-usb
-			 * port). When the target connect Dock-Audio device, extcon
-			 * driver check whether USB/TA cable is connected. If USB/TA
-			 * cable is connected, extcon driver notify state to notifiee
-			 * for charging battery.
+			 * - Dock device include two port(Dock-Audio and micro-
+			 * usb port). When the target connect Dock-Audio device,
+			 * extcon driver check whether USB/TA cable is connected
+			 * or not. If USB/TA cable is connected, extcon driver
+			 * notify state to notifiee for charging battery.
 			 *
 			 * Features of 'USB/TA cable with Dock-Audio device'
 			 * - Support external output feature of audio.
-			 * - Support charging through micro-usb port without data
-			 *           connection.
+			 * - Support charging through micro-usb port without
+			 *   data connection.
 			 */
 			extcon_set_cable_state(info->edev, "USB", attached);
 
 			if (!cable_attached)
-				extcon_set_cable_state(info->edev, "Dock-Audio", cable_attached);
+				extcon_set_cable_state(info->edev, "Dock-Audio",
+						      cable_attached);
 			break;
 		case MAX77693_MUIC_ADC_RESERVED_ACC_3:		/* Dock-Smart */
 			/*
 			 * Dock-Smart device with USB/TA cable
 			 * - Dock-Desk device include three type of cable which
 			 * are HDMI, USB for mouse/keyboard and micro-usb port
-			 * for USB/TA cable. Dock-Smart device need always exteranl
-			 * power supply(USB/TA cable through micro-usb cable). Dock-
-			 * Smart device support screen output of target to separate
-			 * monitor and mouse/keyboard for desktop mode.
+			 * for USB/TA cable. Dock-Smart device need always
+			 * exteranl power supply(USB/TA cable through micro-usb
+			 * cable). Dock-Smart device support screen output of
+			 * target to separate monitor and mouse/keyboard for
+			 * desktop mode.
 			 *
 			 * Features of 'USB/TA cable with Dock-Smart device'
 			 * - Support MHL
 			 * - Support external output feature of audio
-			 * - Support charging through micro-usb port without data
-			 *	     connection if TA cable is connected to target.
-			 * - Support charging and data connection through micro-usb port
-			 *           if USB cable is connected between target and host
-			 *	     device.
+			 * - Support charging through micro-usb port without
+			 *   data connection if TA cable is connected to target.
+			 * - Support charging and data connection through micro-
+			 *   usb port if USB cable is connected between target
+			 *   and host device
 			 * - Support OTG device (Mouse/Keyboard)
 			 */
-			ret = max77693_muic_set_path(info, info->path_usb, attached);
+			ret = max77693_muic_set_path(info, info->path_usb,
+						    attached);
 			if (ret < 0)
 				return ret;
 
-			extcon_set_cable_state(info->edev, "Dock-Smart", attached);
+			extcon_set_cable_state(info->edev, "Dock-Smart",
+					      attached);
 			extcon_set_cable_state(info->edev, "MHL", attached);
 
 			break;
@@ -889,25 +898,28 @@ static int max77693_muic_chg_handler(struct max77693_muic_info *info)
 		switch (chg_type) {
 		case MAX77693_CHARGER_TYPE_NONE:
 			/*
-			 * When MHL(with USB/TA cable) or Dock-Audio with USB/TA cable
-			 * is attached, muic device happen below two interrupt.
-			 * - 'MAX77693_MUIC_IRQ_INT1_ADC' for detecting MHL/Dock-Audio.
-			 * - 'MAX77693_MUIC_IRQ_INT2_CHGTYP' for detecting USB/TA cable
-			 *   connected to MHL or Dock-Audio.
-			 * Always, happen eariler MAX77693_MUIC_IRQ_INT1_ADC interrupt
-			 * than MAX77693_MUIC_IRQ_INT2_CHGTYP interrupt.
+			 * When MHL(with USB/TA cable) or Dock-Audio with USB/TA
+			 * cable is attached, muic device happen below two irq.
+			 * - 'MAX77693_MUIC_IRQ_INT1_ADC' for detecting
+			 *    MHL/Dock-Audio.
+			 * - 'MAX77693_MUIC_IRQ_INT2_CHGTYP' for detecting
+			 *    USB/TA cable connected to MHL or Dock-Audio.
+			 * Always, happen eariler MAX77693_MUIC_IRQ_INT1_ADC
+			 * irq than MAX77693_MUIC_IRQ_INT2_CHGTYP irq.
 			 *
-			 * If user attach MHL (with USB/TA cable and immediately detach
-			 * MHL with USB/TA cable before MAX77693_MUIC_IRQ_INT2_CHGTYP
-			 * interrupt is happened, USB/TA cable remain connected state to
-			 * target. But USB/TA cable isn't connected to target. The user
-			 * be face with unusual action. So, driver should check this
-			 * situation in spite of, that previous charger type is N/A.
+			 * If user attach MHL (with USB/TA cable and immediately
+			 * detach MHL with USB/TA cable before MAX77693_MUIC_IRQ
+			 * _INT2_CHGTYP irq is happened, USB/TA cable remain
+			 * connected state to target. But USB/TA cable isn't
+			 * connected to target. The user be face with unusual
+			 * action. So, driver should check this situation in
+			 * spite of, that previous charger type is N/A.
 			 */
 			break;
 		case MAX77693_CHARGER_TYPE_USB:
 			/* Only USB cable, PATH:AP_USB */
-			ret = max77693_muic_set_path(info, info->path_usb, attached);
+			ret = max77693_muic_set_path(info, info->path_usb,
+						    attached);
 			if (ret < 0)
 				return ret;
 
@@ -1214,7 +1226,8 @@ static int max77693_muic_probe(struct platform_device *pdev)
 	}
 
 	if (pdata->muic_data) {
-		struct max77693_muic_platform_data *muic_pdata = pdata->muic_data;
+		struct max77693_muic_platform_data *muic_pdata
+						   = pdata->muic_data;
 
 		/*
 		 * Default usb/uart path whether UART/USB or AUX_UART/AUX_USB
diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
index 67d6738d85a0..b9e726daefca 100644
--- a/drivers/extcon/extcon-max8997.c
+++ b/drivers/extcon/extcon-max8997.c
@@ -426,7 +426,8 @@ static int max8997_muic_adc_handler(struct max8997_muic_info *info)
 		break;
 	case MAX8997_MUIC_ADC_FACTORY_MODE_USB_OFF:
 	case MAX8997_MUIC_ADC_FACTORY_MODE_USB_ON:
-		ret = max8997_muic_handle_usb(info, MAX8997_USB_DEVICE, attached);
+		ret = max8997_muic_handle_usb(info,
+					     MAX8997_USB_DEVICE, attached);
 		if (ret < 0)
 			return ret;
 		break;
@@ -504,7 +505,8 @@ static int max8997_muic_chg_handler(struct max8997_muic_info *info)
 		}
 		break;
 	case MAX8997_CHARGER_TYPE_DOWNSTREAM_PORT:
-		extcon_set_cable_state(info->edev, "Charge-downstream", attached);
+		extcon_set_cable_state(info->edev,
+				      "Charge-downstream", attached);
 		break;
 	case MAX8997_CHARGER_TYPE_DEDICATED_CHG:
 		extcon_set_cable_state(info->edev, "TA", attached);
-- 
cgit 


From 2cc7e4d4b8086a8ad2299b30b610624aa911d1f8 Mon Sep 17 00:00:00 2001
From: Chanwoo Choi <cw00.choi@samsung.com>
Date: Fri, 23 Aug 2013 10:21:38 +0900
Subject: extcon: class: Remove unnecessary extern declaration

This patch remove unnecessary extern declaration (extcon_set_state).
checkpatch found this coding style issue.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/extcon/extcon-class.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c
index 17544320d1a6..b6a3d379fe9a 100644
--- a/drivers/extcon/extcon-class.c
+++ b/drivers/extcon/extcon-class.c
@@ -129,7 +129,6 @@ static ssize_t state_show(struct device *dev, struct device_attribute *attr,
 	return count;
 }
 
-int extcon_set_state(struct extcon_dev *edev, u32 state);
 static ssize_t state_store(struct device *dev, struct device_attribute *attr,
 			   const char *buf, size_t count)
 {
-- 
cgit 


From d6675667540a19427099cfd7eb80fcd4320a951d Mon Sep 17 00:00:00 2001
From: Chanwoo Choi <cw00.choi@samsung.com>
Date: Fri, 23 Aug 2013 10:21:39 +0900
Subject: extcon: arizona: Fix up minor coding style to remove unnecessary
 braces

This fixes up braces coding style issue by using checkpatch script.

Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/extcon/extcon-arizona.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index 9431092f52fc..91a702beccc5 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -564,11 +564,10 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data)
 	}
 
 	ret = arizona_hpdet_read(info);
-	if (ret == -EAGAIN) {
+	if (ret == -EAGAIN)
 		goto out;
-	} else if (ret < 0) {
+	else if (ret < 0)
 		goto done;
-	}
 	reading = ret;
 
 	/* Reset back to starting range */
@@ -578,11 +577,10 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data)
 			   0);
 
 	ret = arizona_hpdet_do_id(info, &reading, &mic);
-	if (ret == -EAGAIN) {
+	if (ret == -EAGAIN)
 		goto out;
-	} else if (ret < 0) {
+	else if (ret < 0)
 		goto done;
-	}
 
 	/* Report high impedence cables as line outputs */
 	if (reading >= 5000)
-- 
cgit 


From 58125210ab3b202917c04fca014317944d464ea0 Mon Sep 17 00:00:00 2001
From: Olaf Hering <olaf@aepfle.de>
Date: Wed, 7 Aug 2013 19:14:37 +0200
Subject: Tools: hv: cache FQDN in kvp_daemon to avoid timeouts

kvp_daemon does some operations which take an unpredicable amount of
time. In addition the kernel driver gives the kvp_daemon a 5 second
timeout to respond to message from the host. If an operation such as
getaddrinfo takes a long time and the timeout triggers then netlink
errors occour. As a result of such errors the daemon just terminates and
the service becomes unavailable.

Idendifying and fixing these shortcomings in the kernel-userland
communication protocol will be done in separate patches. This change
fixes just one obvious timeout bug.

Update kvp_get_domain_name to not return a value, better diagnostic for
the consumer of the hostname string, remove trailing newline in error
case, use snprintf to not overrun output buffer, get hostname only once
and return the cached result.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/hv/hv_kvp_daemon.c | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c
index 8fd9ec66121c..21bd7d4574fc 100644
--- a/tools/hv/hv_kvp_daemon.c
+++ b/tools/hv/hv_kvp_daemon.c
@@ -89,6 +89,7 @@ static char *processor_arch;
 static char *os_build;
 static char *os_version;
 static char *lic_version = "Unknown version";
+static char full_domain_name[HV_KVP_EXCHANGE_MAX_VALUE_SIZE];
 static struct utsname uts_buf;
 
 /*
@@ -1367,7 +1368,7 @@ setval_error:
 }
 
 
-static int
+static void
 kvp_get_domain_name(char *buffer, int length)
 {
 	struct addrinfo	hints, *info ;
@@ -1381,12 +1382,12 @@ kvp_get_domain_name(char *buffer, int length)
 
 	error = getaddrinfo(buffer, NULL, &hints, &info);
 	if (error != 0) {
-		strcpy(buffer, "getaddrinfo failed\n");
-		return error;
+		snprintf(buffer, length, "getaddrinfo failed: 0x%x %s",
+			error, gai_strerror(error));
+		return;
 	}
-	strcpy(buffer, info->ai_canonname);
+	snprintf(buffer, length, "%s", info->ai_canonname);
 	freeaddrinfo(info);
-	return error;
 }
 
 static int
@@ -1453,6 +1454,11 @@ int main(void)
 	 * Retrieve OS release information.
 	 */
 	kvp_get_os_info();
+	/*
+	 * Cache Fully Qualified Domain Name because getaddrinfo takes an
+	 * unpredictable amount of time to finish.
+	 */
+	kvp_get_domain_name(full_domain_name, sizeof(full_domain_name));
 
 	if (kvp_file_init()) {
 		syslog(LOG_ERR, "Failed to initialize the pools");
@@ -1671,8 +1677,7 @@ int main(void)
 
 		switch (hv_msg->body.kvp_enum_data.index) {
 		case FullyQualifiedDomainName:
-			kvp_get_domain_name(key_value,
-					HV_KVP_EXCHANGE_MAX_VALUE_SIZE);
+			strcpy(key_value, full_domain_name);
 			strcpy(key_name, "FullyQualifiedDomainName");
 			break;
 		case IntegrationServicesVersion:
-- 
cgit 


From 269ce62bbc00c4e80bf3ca2aa21823f20625bcf6 Mon Sep 17 00:00:00 2001
From: Olaf Hering <olaf@aepfle.de>
Date: Tue, 6 Aug 2013 20:55:38 +0200
Subject: Tools: hv: use single send+recv buffer

send_buffer is used only once during registration. To reduce runtime
memory usage reuse the recv_buffer for registration. Also use
NLMSG_LENGTH instead of NLMSG_HDRLEN to take alignment into account.

Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/hv/hv_kvp_daemon.c | 10 ++++------
 tools/hv/hv_vss_daemon.c |  8 +++-----
 2 files changed, 7 insertions(+), 11 deletions(-)

diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c
index 21bd7d4574fc..b8d6d541d854 100644
--- a/tools/hv/hv_kvp_daemon.c
+++ b/tools/hv/hv_kvp_daemon.c
@@ -1434,7 +1434,6 @@ int main(void)
 	int	pool;
 	char	*if_name;
 	struct hv_kvp_ipaddr_value *kvp_ip_val;
-	char *kvp_send_buffer;
 	char *kvp_recv_buffer;
 	size_t kvp_recv_buffer_len;
 
@@ -1443,11 +1442,10 @@ int main(void)
 	openlog("KVP", 0, LOG_USER);
 	syslog(LOG_INFO, "KVP starting; pid is:%d", getpid());
 
-	kvp_recv_buffer_len = NLMSG_HDRLEN + sizeof(struct cn_msg) + sizeof(struct hv_kvp_msg);
-	kvp_send_buffer = calloc(1, kvp_recv_buffer_len);
+	kvp_recv_buffer_len = NLMSG_LENGTH(0) + sizeof(struct cn_msg) + sizeof(struct hv_kvp_msg);
 	kvp_recv_buffer = calloc(1, kvp_recv_buffer_len);
-	if (!(kvp_send_buffer && kvp_recv_buffer)) {
-		syslog(LOG_ERR, "Failed to allocate netlink buffers");
+	if (!kvp_recv_buffer) {
+		syslog(LOG_ERR, "Failed to allocate netlink buffer");
 		exit(EXIT_FAILURE);
 	}
 	/*
@@ -1494,7 +1492,7 @@ int main(void)
 	/*
 	 * Register ourselves with the kernel.
 	 */
-	message = (struct cn_msg *)kvp_send_buffer;
+	message = (struct cn_msg *)kvp_recv_buffer;
 	message->id.idx = CN_KVP_IDX;
 	message->id.val = CN_KVP_VAL;
 
diff --git a/tools/hv/hv_vss_daemon.c b/tools/hv/hv_vss_daemon.c
index 8611962c672c..8bcb04096eb2 100644
--- a/tools/hv/hv_vss_daemon.c
+++ b/tools/hv/hv_vss_daemon.c
@@ -140,7 +140,6 @@ int main(void)
 	struct cn_msg	*incoming_cn_msg;
 	int	op;
 	struct hv_vss_msg *vss_msg;
-	char *vss_send_buffer;
 	char *vss_recv_buffer;
 	size_t vss_recv_buffer_len;
 
@@ -150,10 +149,9 @@ int main(void)
 	openlog("Hyper-V VSS", 0, LOG_USER);
 	syslog(LOG_INFO, "VSS starting; pid is:%d", getpid());
 
-	vss_recv_buffer_len = NLMSG_HDRLEN + sizeof(struct cn_msg) + sizeof(struct hv_vss_msg);
-	vss_send_buffer = calloc(1, vss_recv_buffer_len);
+	vss_recv_buffer_len = NLMSG_LENGTH(0) + sizeof(struct cn_msg) + sizeof(struct hv_vss_msg);
 	vss_recv_buffer = calloc(1, vss_recv_buffer_len);
-	if (!(vss_send_buffer && vss_recv_buffer)) {
+	if (!vss_recv_buffer) {
 		syslog(LOG_ERR, "Failed to allocate netlink buffers");
 		exit(EXIT_FAILURE);
 	}
@@ -185,7 +183,7 @@ int main(void)
 	/*
 	 * Register ourselves with the kernel.
 	 */
-	message = (struct cn_msg *)vss_send_buffer;
+	message = (struct cn_msg *)vss_recv_buffer;
 	message->id.idx = CN_VSS_IDX;
 	message->id.val = CN_VSS_VAL;
 	message->ack = 0;
-- 
cgit 


From 1c6bbe47396bb1b6ddb4967e262371e3857de2e7 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 2 Sep 2013 13:58:59 +0530
Subject: ath9k: Update initvals for AR9565 1.0

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h b/drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h
index e85a8b076c22..03ecc073e4d4 100644
--- a/drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h
@@ -272,9 +272,9 @@ static const u32 ar9565_1p0_baseband_core[][2] = {
 	{0x0000a398, 0x001f0e0f},
 	{0x0000a39c, 0x0075393f},
 	{0x0000a3a0, 0xb79f6427},
-	{0x0000a3a4, 0x00000000},
-	{0x0000a3a8, 0xaaaaaaaa},
-	{0x0000a3ac, 0x3c466478},
+	{0x0000a3a4, 0x00000011},
+	{0x0000a3a8, 0xaaaaaa6e},
+	{0x0000a3ac, 0x3c466455},
 	{0x0000a3c0, 0x20202020},
 	{0x0000a3c4, 0x22222220},
 	{0x0000a3c8, 0x20200020},
@@ -295,11 +295,11 @@ static const u32 ar9565_1p0_baseband_core[][2] = {
 	{0x0000a404, 0x00000000},
 	{0x0000a408, 0x0e79e5c6},
 	{0x0000a40c, 0x00820820},
-	{0x0000a414, 0x1ce739ce},
+	{0x0000a414, 0x1ce739c5},
 	{0x0000a418, 0x2d001dce},
-	{0x0000a41c, 0x1ce739ce},
+	{0x0000a41c, 0x1ce739c5},
 	{0x0000a420, 0x000001ce},
-	{0x0000a424, 0x1ce739ce},
+	{0x0000a424, 0x1ce739c5},
 	{0x0000a428, 0x000001ce},
 	{0x0000a42c, 0x1ce739ce},
 	{0x0000a430, 0x1ce739ce},
@@ -351,9 +351,9 @@ static const u32 ar9565_1p0_baseband_postamble[][5] = {
 	{0x00009e14, 0x37b95d5e, 0x37b9605e, 0x3379605e, 0x33795d5e},
 	{0x00009e18, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
 	{0x00009e1c, 0x0001cf9c, 0x0001cf9c, 0x00021f9c, 0x00021f9c},
-	{0x00009e20, 0x000003b5, 0x000003b5, 0x000003ce, 0x000003ce},
+	{0x00009e20, 0x000003b5, 0x000003b5, 0x000003a4, 0x000003a4},
 	{0x00009e2c, 0x0000001c, 0x0000001c, 0x00000021, 0x00000021},
-	{0x00009e3c, 0xcf946222, 0xcf946222, 0xcf946222, 0xcf946222},
+	{0x00009e3c, 0xcf946222, 0xcf946222, 0xcf946220, 0xcf946220},
 	{0x00009e44, 0xfe321e27, 0xfe321e27, 0xfe291e27, 0xfe291e27},
 	{0x00009e48, 0x5030201a, 0x5030201a, 0x50302012, 0x50302012},
 	{0x00009fc8, 0x0003f000, 0x0003f000, 0x0001a000, 0x0001a000},
@@ -452,6 +452,7 @@ static const u32 ar9565_1p0_Common_rx_gain_table[][2] = {
 	/* Addr      allmodes  */
 	{0x00004050, 0x00300300},
 	{0x0000406c, 0x00100000},
+	{0x00009e20, 0x000003b6},
 	{0x0000a000, 0x00010000},
 	{0x0000a004, 0x00030002},
 	{0x0000a008, 0x00050004},
-- 
cgit 


From 7e12d6a496fefb202ea2bfbbcab7426b9bd77d5b Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 2 Sep 2013 13:59:00 +0530
Subject: ath9k: Bypass EEPROM for diversity cap for AR9565

Use a default antenna diversity value for AR9565 instead
of relying on the EEPROM/OTP programmed value.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ar9003_eeprom.c | 5 ++++-
 drivers/net/wireless/ath/ath9k/ar9003_eeprom.h | 2 ++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index f4864807e15b..6af2d738a39e 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -2991,7 +2991,10 @@ static u32 ath9k_hw_ar9300_get_eeprom(struct ath_hw *ah,
 	case EEP_CHAIN_MASK_REDUCE:
 		return (pBase->miscConfiguration >> 0x3) & 0x1;
 	case EEP_ANT_DIV_CTL1:
-		return eep->base_ext1.ant_div_control;
+		if (AR_SREV_9565(ah))
+			return AR9300_EEP_ANTDIV_CONTROL_DEFAULT_VALUE;
+		else
+			return eep->base_ext1.ant_div_control;
 	case EEP_ANTENNA_GAIN_5G:
 		return eep->modalHeader5G.antennaGain;
 	case EEP_ANTENNA_GAIN_2G:
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
index 75d4fb41962f..0e5daa58a4fc 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
@@ -52,6 +52,8 @@
 #define AR9300_PAPRD_SCALE_2		0x70000000
 #define AR9300_PAPRD_SCALE_2_S		28
 
+#define AR9300_EEP_ANTDIV_CONTROL_DEFAULT_VALUE 0xc9
+
 /* Delta from which to start power to pdadc table */
 /* This offset is used in both open loop and closed loop power control
  * schemes. In open loop power control, it is not really needed, but for
-- 
cgit 


From c946868228685b66ed41a8526ba0b6c9875622c8 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 2 Sep 2013 13:59:01 +0530
Subject: ath9k: Fix antenna diversity init for AR9565

Program the HW registers (AR_PHY_CCK_DETECT, AR_PHY_MC_GAIN_CTRL)
with the correct values for AR9565 to allow LNA combining.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ar9003_eeprom.c | 17 ++++++++++++++++-
 drivers/net/wireless/ath/ath9k/ar9003_phy.c    | 17 ++++++++++++-----
 2 files changed, 28 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index 6af2d738a39e..5982256078d8 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -3659,9 +3659,23 @@ static void ar9003_hw_ant_ctrl_apply(struct ath_hw *ah, bool is2ghz)
 		if (AR_SREV_9565(ah)) {
 			if (common->bt_ant_diversity) {
 				regval |= (1 << AR_PHY_ANT_SW_RX_PROT_S);
+
+				REG_SET_BIT(ah, AR_PHY_RESTART,
+					    AR_PHY_RESTART_ENABLE_DIV_M2FLAG);
+
+				/* Force WLAN LNA diversity ON */
+				REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV,
+					    AR_BTCOEX_WL_LNADIV_FORCE_ON);
 			} else {
 				regval &= ~(1 << AR_PHY_ANT_DIV_LNADIV_S);
 				regval &= ~(1 << AR_PHY_ANT_SW_RX_PROT_S);
+
+				REG_CLR_BIT(ah, AR_PHY_MC_GAIN_CTRL,
+					    (1 << AR_PHY_ANT_SW_RX_PROT_S));
+
+				/* Force WLAN LNA diversity OFF */
+				REG_CLR_BIT(ah, AR_BTCOEX_WL_LNADIV,
+					    AR_BTCOEX_WL_LNADIV_FORCE_ON);
 			}
 		}
 
@@ -3672,7 +3686,8 @@ static void ar9003_hw_ant_ctrl_apply(struct ath_hw *ah, bool is2ghz)
 		regval &= (~AR_FAST_DIV_ENABLE);
 		regval |= ((value >> 7) & 0x1) << AR_FAST_DIV_ENABLE_S;
 
-		if (AR_SREV_9485(ah) && common->bt_ant_diversity)
+		if ((AR_SREV_9485(ah) || AR_SREV_9565(ah))
+		    && common->bt_ant_diversity)
 			regval |= AR_FAST_DIV_ENABLE;
 
 		REG_WRITE(ah, AR_PHY_CCK_DETECT, regval);
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index e897648d3233..9ca9b2cd9cb6 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -1488,18 +1488,25 @@ static void ar9003_hw_set_bt_ant_diversity(struct ath_hw *ah, bool enable)
 		}
 	} else if (AR_SREV_9565(ah)) {
 		if (enable) {
+			REG_SET_BIT(ah, AR_PHY_MC_GAIN_CTRL,
+				    AR_ANT_DIV_ENABLE);
 			REG_SET_BIT(ah, AR_PHY_MC_GAIN_CTRL,
 				    (1 << AR_PHY_ANT_SW_RX_PROT_S));
-			if (ah->curchan && IS_CHAN_2GHZ(ah->curchan))
-				REG_SET_BIT(ah, AR_PHY_RESTART,
-					    AR_PHY_RESTART_ENABLE_DIV_M2FLAG);
+			REG_SET_BIT(ah, AR_PHY_CCK_DETECT,
+				    AR_FAST_DIV_ENABLE);
+			REG_SET_BIT(ah, AR_PHY_RESTART,
+				    AR_PHY_RESTART_ENABLE_DIV_M2FLAG);
 			REG_SET_BIT(ah, AR_BTCOEX_WL_LNADIV,
 				    AR_BTCOEX_WL_LNADIV_FORCE_ON);
 		} else {
-			REG_CLR_BIT(ah, AR_PHY_MC_GAIN_CTRL, AR_ANT_DIV_ENABLE);
+			REG_CLR_BIT(ah, AR_PHY_MC_GAIN_CTRL,
+				    AR_ANT_DIV_ENABLE);
 			REG_CLR_BIT(ah, AR_PHY_MC_GAIN_CTRL,
 				    (1 << AR_PHY_ANT_SW_RX_PROT_S));
-			REG_CLR_BIT(ah, AR_PHY_CCK_DETECT, AR_FAST_DIV_ENABLE);
+			REG_CLR_BIT(ah, AR_PHY_CCK_DETECT,
+				    AR_FAST_DIV_ENABLE);
+			REG_CLR_BIT(ah, AR_PHY_RESTART,
+				    AR_PHY_RESTART_ENABLE_DIV_M2FLAG);
 			REG_CLR_BIT(ah, AR_BTCOEX_WL_LNADIV,
 				    AR_BTCOEX_WL_LNADIV_FORCE_ON);
 
-- 
cgit 


From 6ac2150927399ae0f6d34430145bddc761cbb1a0 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 2 Sep 2013 13:59:02 +0530
Subject: ath9k: Use correct RX gain table for AR9565

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ar9003_hw.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_hw.c b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
index 608bb4824e2a..d40bdd23696a 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_hw.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
@@ -628,6 +628,9 @@ static void ar9003_rx_gain_table_mode0(struct ath_hw *ah)
 	else if (AR_SREV_9462_20(ah))
 		INIT_INI_ARRAY(&ah->iniModesRxGain,
 				ar9462_common_rx_gain_table_2p0);
+	else if (AR_SREV_9565(ah))
+		INIT_INI_ARRAY(&ah->iniModesRxGain,
+			       ar9565_1p0_Common_rx_gain_table);
 	else
 		INIT_INI_ARRAY(&ah->iniModesRxGain,
 				ar9300Common_rx_gain_table_2p2);
-- 
cgit 


From f96bd2ad2259dc5d94fddffe37c668017209712b Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 2 Sep 2013 13:59:03 +0530
Subject: ath9k: Add support for AR9565 v1.0.1 LNA diversity

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/antenna.c    | 36 +++++++----------------------
 drivers/net/wireless/ath/ath9k/ar9002_phy.c |  1 +
 drivers/net/wireless/ath/ath9k/ar9003_phy.c |  6 ++++-
 drivers/net/wireless/ath/ath9k/ath9k.h      |  1 -
 drivers/net/wireless/ath/ath9k/hw.h         |  1 +
 5 files changed, 15 insertions(+), 30 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/antenna.c b/drivers/net/wireless/ath/ath9k/antenna.c
index dd1cc73d7946..bd048cc69a33 100644
--- a/drivers/net/wireless/ath/ath9k/antenna.c
+++ b/drivers/net/wireless/ath/ath9k/antenna.c
@@ -332,7 +332,7 @@ static void ath_select_ant_div_from_quick_scan(struct ath_ant_comb *antcomb,
 		}
 
 		if (antcomb->rssi_lna2 > antcomb->rssi_lna1 +
-		    ATH_ANT_DIV_COMB_LNA1_LNA2_SWITCH_DELTA)
+		    div_ant_conf->lna1_lna2_switch_delta)
 			div_ant_conf->main_lna_conf = ATH_ANT_DIV_COMB_LNA2;
 		else
 			div_ant_conf->main_lna_conf = ATH_ANT_DIV_COMB_LNA1;
@@ -554,42 +554,22 @@ static void ath_ant_div_conf_fast_divbias(struct ath_hw_antcomb_conf *ant_conf,
 			ant_conf->fast_div_bias = 0x1;
 			break;
 		case 0x10: /* LNA2 A-B */
-			if ((antcomb->scan == 0) &&
-			    (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)) {
-				ant_conf->fast_div_bias = 0x3f;
-			} else {
-				ant_conf->fast_div_bias = 0x1;
-			}
+			ant_conf->fast_div_bias = 0x2;
 			break;
 		case 0x12: /* LNA2 LNA1 */
-			ant_conf->fast_div_bias = 0x39;
+			ant_conf->fast_div_bias = 0x3f;
 			break;
 		case 0x13: /* LNA2 A+B */
-			if ((antcomb->scan == 0) &&
-			    (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)) {
-				ant_conf->fast_div_bias = 0x3f;
-			} else {
-				ant_conf->fast_div_bias = 0x1;
-			}
+			ant_conf->fast_div_bias = 0x2;
 			break;
 		case 0x20: /* LNA1 A-B */
-			if ((antcomb->scan == 0) &&
-			    (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)) {
-				ant_conf->fast_div_bias = 0x3f;
-			} else {
-				ant_conf->fast_div_bias = 0x4;
-			}
+			ant_conf->fast_div_bias = 0x3;
 			break;
 		case 0x21: /* LNA1 LNA2 */
-			ant_conf->fast_div_bias = 0x6;
+			ant_conf->fast_div_bias = 0x3;
 			break;
 		case 0x23: /* LNA1 A+B */
-			if ((antcomb->scan == 0) &&
-			    (alt_ratio > ATH_ANT_DIV_COMB_ALT_ANT_RATIO)) {
-				ant_conf->fast_div_bias = 0x3f;
-			} else {
-				ant_conf->fast_div_bias = 0x6;
-			}
+			ant_conf->fast_div_bias = 0x3;
 			break;
 		case 0x30: /* A+B A-B */
 			ant_conf->fast_div_bias = 0x1;
@@ -638,7 +618,7 @@ static void ath_ant_try_scan(struct ath_ant_comb *antcomb,
 		antcomb->rssi_sub = alt_rssi_avg;
 		antcomb->scan = false;
 		if (antcomb->rssi_lna2 >
-		    (antcomb->rssi_lna1 + ATH_ANT_DIV_COMB_LNA1_LNA2_SWITCH_DELTA)) {
+		    (antcomb->rssi_lna1 + conf->lna1_lna2_switch_delta)) {
 			/* use LNA2 as main LNA */
 			if ((antcomb->rssi_add > antcomb->rssi_lna1) &&
 			    (antcomb->rssi_add > antcomb->rssi_sub)) {
diff --git a/drivers/net/wireless/ath/ath9k/ar9002_phy.c b/drivers/net/wireless/ath/ath9k/ar9002_phy.c
index 1fc1fa955d44..7a5569b679b2 100644
--- a/drivers/net/wireless/ath/ath9k/ar9002_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_phy.c
@@ -532,6 +532,7 @@ static void ar9002_hw_antdiv_comb_conf_get(struct ath_hw *ah,
 				 AR_PHY_9285_ANT_DIV_ALT_LNACONF_S;
 	antconf->fast_div_bias = (regval & AR_PHY_9285_FAST_DIV_BIAS) >>
 				  AR_PHY_9285_FAST_DIV_BIAS_S;
+	antconf->lna1_lna2_switch_delta = -1;
 	antconf->lna1_lna2_delta = -3;
 	antconf->div_group = 0;
 }
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index 9ca9b2cd9cb6..b8a279e889c1 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -1375,15 +1375,19 @@ static void ar9003_hw_antdiv_comb_conf_get(struct ath_hw *ah,
 				  AR_PHY_ANT_FAST_DIV_BIAS_S;
 
 	if (AR_SREV_9330_11(ah)) {
+		antconf->lna1_lna2_switch_delta = -1;
 		antconf->lna1_lna2_delta = -9;
 		antconf->div_group = 1;
 	} else if (AR_SREV_9485(ah)) {
+		antconf->lna1_lna2_switch_delta = -1;
 		antconf->lna1_lna2_delta = -9;
 		antconf->div_group = 2;
 	} else if (AR_SREV_9565(ah)) {
-		antconf->lna1_lna2_delta = -3;
+		antconf->lna1_lna2_switch_delta = 3;
+		antconf->lna1_lna2_delta = -9;
 		antconf->div_group = 3;
 	} else {
+		antconf->lna1_lna2_switch_delta = -1;
 		antconf->lna1_lna2_delta = -3;
 		antconf->div_group = 0;
 	}
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 2ee35f677c0e..74a87702979a 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -581,7 +581,6 @@ static inline void ath_fill_led_pin(struct ath_softc *sc)
 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO_LOW_RSSI 50
 #define ATH_ANT_DIV_COMB_ALT_ANT_RATIO2_LOW_RSSI 50
 
-#define ATH_ANT_DIV_COMB_LNA1_LNA2_SWITCH_DELTA -1
 #define ATH_ANT_DIV_COMB_LNA1_DELTA_HI -4
 #define ATH_ANT_DIV_COMB_LNA1_DELTA_MID -2
 #define ATH_ANT_DIV_COMB_LNA1_DELTA_LOW 2
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 69a907b55a73..88f67c39f94c 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -558,6 +558,7 @@ struct ath_hw_antcomb_conf {
 	u8 main_gaintb;
 	u8 alt_gaintb;
 	int lna1_lna2_delta;
+	int lna1_lna2_switch_delta;
 	u8 div_group;
 };
 
-- 
cgit 


From 1823a4212b04dd210f45eb0392af80d8a30fd593 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 2 Sep 2013 13:59:04 +0530
Subject: ath9k: Enable antenna diversity for WB335

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/pci.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index d089a7cf01c4..b43a2ec7021e 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -269,7 +269,11 @@ static DEFINE_PCI_DEVICE_TABLE(ath_pci_id_table) = {
 
 	{ PCI_VDEVICE(ATHEROS, 0x0034) }, /* PCI-E  AR9462 */
 	{ PCI_VDEVICE(ATHEROS, 0x0037) }, /* PCI-E  AR1111/AR9485 */
-	{ PCI_VDEVICE(ATHEROS, 0x0036) }, /* PCI-E  AR9565 */
+
+	/* PCI-E AR9565 (WB335) */
+	{ PCI_VDEVICE(ATHEROS, 0x0036),
+	  .driver_data = ATH9K_PCI_BT_ANT_DIV },
+
 	{ 0 }
 };
 
-- 
cgit 


From 10631336eb11646680394868338120d5fae98a78 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 2 Sep 2013 13:59:05 +0530
Subject: ath9k: Identify CUS252 cards

These cards are based on WB335/AR9565.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ath9k.h |  7 ++++---
 drivers/net/wireless/ath/ath9k/init.c  |  3 +++
 drivers/net/wireless/ath/ath9k/pci.c   | 12 ++++++++++++
 3 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 74a87702979a..585c3101d273 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -628,9 +628,10 @@ void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs);
 #define ATH9K_PCI_CUS198     0x0001
 #define ATH9K_PCI_CUS230     0x0002
 #define ATH9K_PCI_CUS217     0x0004
-#define ATH9K_PCI_WOW        0x0008
-#define ATH9K_PCI_BT_ANT_DIV 0x0010
-#define ATH9K_PCI_D3_L1_WAR  0x0020
+#define ATH9K_PCI_CUS252     0x0008
+#define ATH9K_PCI_WOW        0x0010
+#define ATH9K_PCI_BT_ANT_DIV 0x0020
+#define ATH9K_PCI_D3_L1_WAR  0x0040
 
 /*
  * Default cache line size, in bytes.
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 9a1f349f9260..4fe0535839b3 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -547,6 +547,9 @@ static void ath9k_init_platform(struct ath_softc *sc)
 	if (sc->driver_data & ATH9K_PCI_CUS217)
 		ath_info(common, "CUS217 card detected\n");
 
+	if (sc->driver_data & ATH9K_PCI_CUS252)
+		ath_info(common, "CUS252 card detected\n");
+
 	if (sc->driver_data & ATH9K_PCI_BT_ANT_DIV) {
 		pCap->hw_caps |= ATH9K_HW_CAP_BT_ANT_DIV;
 		ath_info(common, "Set BT/WLAN RX diversity capability\n");
diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index b43a2ec7021e..465574b70631 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -270,6 +270,18 @@ static DEFINE_PCI_DEVICE_TABLE(ath_pci_id_table) = {
 	{ PCI_VDEVICE(ATHEROS, 0x0034) }, /* PCI-E  AR9462 */
 	{ PCI_VDEVICE(ATHEROS, 0x0037) }, /* PCI-E  AR1111/AR9485 */
 
+	/* CUS252 */
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 PCI_VENDOR_ID_ATHEROS,
+			 0x3028),
+	  .driver_data = ATH9K_PCI_CUS252 | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 PCI_VENDOR_ID_AZWAVE,
+			 0x2176),
+	  .driver_data = ATH9K_PCI_CUS252 | ATH9K_PCI_BT_ANT_DIV },
+
 	/* PCI-E AR9565 (WB335) */
 	{ PCI_VDEVICE(ATHEROS, 0x0036),
 	  .driver_data = ATH9K_PCI_BT_ANT_DIV },
-- 
cgit 


From 3fcdd0a12ee0adb139d64b58658366191cb168a7 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 2 Sep 2013 13:59:06 +0530
Subject: ath9k: Identify WB335 Antenna configuration

There are 2 types of WB335 cards, 1-antenna and 2-antenna.
Identify them based on PCI subsystem IDs, this will be used
for MCI/BTCOEX tweaks.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ath9k.h |  16 +--
 drivers/net/wireless/ath/ath9k/init.c  |  17 ++++
 drivers/net/wireless/ath/ath9k/pci.c   | 176 ++++++++++++++++++++++++++++++++-
 3 files changed, 200 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 585c3101d273..5fd429485e76 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -625,13 +625,15 @@ void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs);
 /* Main driver core */
 /********************/
 
-#define ATH9K_PCI_CUS198     0x0001
-#define ATH9K_PCI_CUS230     0x0002
-#define ATH9K_PCI_CUS217     0x0004
-#define ATH9K_PCI_CUS252     0x0008
-#define ATH9K_PCI_WOW        0x0010
-#define ATH9K_PCI_BT_ANT_DIV 0x0020
-#define ATH9K_PCI_D3_L1_WAR  0x0040
+#define ATH9K_PCI_CUS198      0x0001
+#define ATH9K_PCI_CUS230      0x0002
+#define ATH9K_PCI_CUS217      0x0004
+#define ATH9K_PCI_CUS252      0x0008
+#define ATH9K_PCI_WOW         0x0010
+#define ATH9K_PCI_BT_ANT_DIV  0x0020
+#define ATH9K_PCI_D3_L1_WAR   0x0040
+#define ATH9K_PCI_AR9565_1ANT 0x0080
+#define ATH9K_PCI_AR9565_2ANT 0x0100
 
 /*
  * Default cache line size, in bytes.
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 4fe0535839b3..e3d11c41a145 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -550,6 +550,23 @@ static void ath9k_init_platform(struct ath_softc *sc)
 	if (sc->driver_data & ATH9K_PCI_CUS252)
 		ath_info(common, "CUS252 card detected\n");
 
+	if (sc->driver_data & ATH9K_PCI_AR9565_1ANT)
+		ath_info(common, "WB335 1-ANT card detected\n");
+
+	if (sc->driver_data & ATH9K_PCI_AR9565_2ANT)
+		ath_info(common, "WB335 2-ANT card detected\n");
+
+	/*
+	 * Some WB335 cards do not support antenna diversity. Since
+	 * we use a hardcoded value for AR9565 instead of using the
+	 * EEPROM/OTP data, remove the combining feature from
+	 * the HW capabilities bitmap.
+	 */
+	if (sc->driver_data & (ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_AR9565_2ANT)) {
+		if (!(sc->driver_data & ATH9K_PCI_BT_ANT_DIV))
+			pCap->hw_caps &= ~ATH9K_HW_CAP_ANT_DIV_COMB;
+	}
+
 	if (sc->driver_data & ATH9K_PCI_BT_ANT_DIV) {
 		pCap->hw_caps |= ATH9K_HW_CAP_BT_ANT_DIV;
 		ath_info(common, "Set BT/WLAN RX diversity capability\n");
diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index 465574b70631..1aa757a0025e 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -275,12 +275,184 @@ static DEFINE_PCI_DEVICE_TABLE(ath_pci_id_table) = {
 			 0x0036,
 			 PCI_VENDOR_ID_ATHEROS,
 			 0x3028),
-	  .driver_data = ATH9K_PCI_CUS252 | ATH9K_PCI_BT_ANT_DIV },
+	  .driver_data = ATH9K_PCI_CUS252 |
+			 ATH9K_PCI_AR9565_2ANT |
+			 ATH9K_PCI_BT_ANT_DIV },
 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
 			 0x0036,
 			 PCI_VENDOR_ID_AZWAVE,
 			 0x2176),
-	  .driver_data = ATH9K_PCI_CUS252 | ATH9K_PCI_BT_ANT_DIV },
+	  .driver_data = ATH9K_PCI_CUS252 |
+			 ATH9K_PCI_AR9565_2ANT |
+			 ATH9K_PCI_BT_ANT_DIV },
+
+	/* WB335 1-ANT */
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 PCI_VENDOR_ID_FOXCONN,
+			 0xE068),
+	  .driver_data = ATH9K_PCI_AR9565_1ANT },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 0x185F, /* WNC */
+			 0xA119),
+	  .driver_data = ATH9K_PCI_AR9565_1ANT },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 0x11AD, /* LITEON */
+			 0x0632),
+	  .driver_data = ATH9K_PCI_AR9565_1ANT },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 0x11AD, /* LITEON */
+			 0x6671),
+	  .driver_data = ATH9K_PCI_AR9565_1ANT },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 0x1B9A, /* XAVI */
+			 0x2811),
+	  .driver_data = ATH9K_PCI_AR9565_1ANT },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 0x1B9A, /* XAVI */
+			 0x2812),
+	  .driver_data = ATH9K_PCI_AR9565_1ANT },
+
+	/* WB335 1-ANT / Antenna Diversity */
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 PCI_VENDOR_ID_ATHEROS,
+			 0x3025),
+	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 PCI_VENDOR_ID_ATHEROS,
+			 0x3026),
+	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 PCI_VENDOR_ID_ATHEROS,
+			 0x302B),
+	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 PCI_VENDOR_ID_FOXCONN,
+			 0xE069),
+	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 0x185F, /* WNC */
+			 0x3028),
+	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 0x11AD, /* LITEON */
+			 0x0622),
+	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 0x11AD, /* LITEON */
+			 0x0672),
+	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 0x11AD, /* LITEON */
+			 0x0662),
+	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 PCI_VENDOR_ID_AZWAVE,
+			 0x213A),
+	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 PCI_VENDOR_ID_LENOVO,
+			 0x3026),
+	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 PCI_VENDOR_ID_HP,
+			 0x18E3),
+	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 PCI_VENDOR_ID_HP,
+			 0x217F),
+	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
+
+	/* WB335 2-ANT */
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 PCI_VENDOR_ID_SAMSUNG,
+			 0x411A),
+	  .driver_data = ATH9K_PCI_AR9565_2ANT },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 PCI_VENDOR_ID_SAMSUNG,
+			 0x411B),
+	  .driver_data = ATH9K_PCI_AR9565_2ANT },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 PCI_VENDOR_ID_SAMSUNG,
+			 0x411C),
+	  .driver_data = ATH9K_PCI_AR9565_2ANT },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 PCI_VENDOR_ID_SAMSUNG,
+			 0x411D),
+	  .driver_data = ATH9K_PCI_AR9565_2ANT },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 PCI_VENDOR_ID_SAMSUNG,
+			 0x411E),
+	  .driver_data = ATH9K_PCI_AR9565_2ANT },
+
+	/* WB335 2-ANT / Antenna-Diversity */
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 PCI_VENDOR_ID_ATHEROS,
+			 0x3027),
+	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 PCI_VENDOR_ID_ATHEROS,
+			 0x302C),
+	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 0x11AD, /* LITEON */
+			 0x0642),
+	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 0x11AD, /* LITEON */
+			 0x0652),
+	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 0x11AD, /* LITEON */
+			 0x0612),
+	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 PCI_VENDOR_ID_AZWAVE,
+			 0x2130),
+	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 0x144F, /* ASKEY */
+			 0x7202),
+	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 0x1B9A, /* XAVI */
+			 0x2810),
+	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 0x185F, /* WNC */
+			 0x3027),
+	  .driver_data = ATH9K_PCI_AR9565_2ANT | ATH9K_PCI_BT_ANT_DIV },
 
 	/* PCI-E AR9565 (WB335) */
 	{ PCI_VDEVICE(ATHEROS, 0x0036),
-- 
cgit 


From d3b371cb03330fc2474d418b0a86a5fea7267370 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Tue, 3 Sep 2013 10:28:55 +0530
Subject: ath9k: Fix regulatory compliance for AR9462/AR9565

Adjust the CCA values based on the regulatory domain
present in the EEPROM.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ar9003_phy.h |  4 ++++
 drivers/net/wireless/ath/ath9k/hw.c         | 12 ++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.h b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
index 6fd752321e36..fca624322dc8 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
@@ -343,8 +343,12 @@
 
 #define AR_PHY_CCA_NOM_VAL_9462_2GHZ          -127
 #define AR_PHY_CCA_MIN_GOOD_VAL_9462_2GHZ     -127
+#define AR_PHY_CCA_MAX_GOOD_VAL_9462_2GHZ     -60
+#define AR_PHY_CCA_MAX_GOOD_VAL_9462_FCC_2GHZ -95
 #define AR_PHY_CCA_NOM_VAL_9462_5GHZ          -127
 #define AR_PHY_CCA_MIN_GOOD_VAL_9462_5GHZ     -127
+#define AR_PHY_CCA_MAX_GOOD_VAL_9462_5GHZ     -60
+#define AR_PHY_CCA_MAX_GOOD_VAL_9462_FCC_5GHZ -100
 
 #define AR_PHY_CCA_NOM_VAL_9330_2GHZ          -118
 
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index ecc6ec4a1edb..260e0c65f574 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -549,6 +549,18 @@ static int ath9k_hw_post_init(struct ath_hw *ah)
 
 	ath9k_hw_ani_init(ah);
 
+	/*
+	 * EEPROM needs to be initialized before we do this.
+	 * This is required for regulatory compliance.
+	 */
+	if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
+		u16 regdmn = ah->eep_ops->get_eeprom(ah, EEP_REG_0);
+		if ((regdmn & 0xF0) == CTL_FCC) {
+			ah->nf_2g.max = AR_PHY_CCA_MAX_GOOD_VAL_9462_FCC_2GHZ;
+			ah->nf_5g.max = AR_PHY_CCA_MAX_GOOD_VAL_9462_FCC_5GHZ;
+		}
+	}
+
 	return 0;
 }
 
-- 
cgit 


From 6d5228fe20e42339425bbe8e7600b0c8ca4c943d Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Tue, 3 Sep 2013 10:28:56 +0530
Subject: ath9k: Add and use initvals for channel 14

This is missing for AR9565.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ar9003_hw.c           | 2 ++
 drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h | 7 +++++++
 2 files changed, 9 insertions(+)

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_hw.c b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
index d40bdd23696a..b07f164d65cf 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_hw.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
@@ -364,6 +364,8 @@ static void ar9003_hw_init_mode_regs(struct ath_hw *ah)
 
 		INIT_INI_ARRAY(&ah->iniModesFastClock,
 				ar9565_1p0_modes_fast_clock);
+		INIT_INI_ARRAY(&ah->iniCckfirJapan2484,
+			       ar9565_1p0_baseband_core_txfir_coeff_japan_2484);
 	} else {
 		/* mac */
 		INIT_INI_ARRAY(&ah->iniMac[ATH_INI_CORE],
diff --git a/drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h b/drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h
index 03ecc073e4d4..a8c757b6124f 100644
--- a/drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9565_1p0_initvals.h
@@ -1231,4 +1231,11 @@ static const u32 ar9565_1p0_modes_high_power_tx_gain_table[][5] = {
 	{0x00016054, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
 };
 
+static const u32 ar9565_1p0_baseband_core_txfir_coeff_japan_2484[][2] = {
+	/* Addr      allmodes  */
+	{0x0000a398, 0x00000000},
+	{0x0000a39c, 0x6f7f0301},
+	{0x0000a3a0, 0xca9228ee},
+};
+
 #endif /* INITVALS_9565_1P0_H */
-- 
cgit 


From 7c9a72013b652837c4dde9f135f92ab783ee4fbc Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Tue, 3 Sep 2013 10:28:57 +0530
Subject: ath9k: Update AR9485 1.1 initvals

* Remove duplicate array mappings.
* Fix ETSI CCA compliance.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ar9485_initvals.h | 218 +++++++++++++++++++----
 1 file changed, 184 insertions(+), 34 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar9485_initvals.h b/drivers/net/wireless/ath/ath9k/ar9485_initvals.h
index 88ff1d7b53ab..6f899c692647 100644
--- a/drivers/net/wireless/ath/ath9k/ar9485_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9485_initvals.h
@@ -20,7 +20,17 @@
 
 /* AR9485 1.1 */
 
-#define ar9485_1_1_mac_postamble ar9300_2p2_mac_postamble
+static const u32 ar9485_1_1_mac_postamble[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x00001030, 0x00000230, 0x00000460, 0x000002c0, 0x00000160},
+	{0x00001070, 0x00000168, 0x000002d0, 0x00000318, 0x0000018c},
+	{0x000010b0, 0x00000e60, 0x00001cc0, 0x00007c70, 0x00003e38},
+	{0x00008014, 0x03e803e8, 0x07d007d0, 0x10801600, 0x08400b00},
+	{0x0000801c, 0x128d8027, 0x128d804f, 0x12e00057, 0x12e0002b},
+	{0x00008120, 0x08f04800, 0x08f04800, 0x08f04810, 0x08f04810},
+	{0x000081d0, 0x00003210, 0x00003210, 0x0000320a, 0x0000320a},
+	{0x00008318, 0x00003e80, 0x00007d00, 0x00006880, 0x00003440},
+};
 
 static const u32 ar9485_1_1_pcie_phy_pll_on_clkreq_disable_L1[][2] = {
 	/* Addr      allmodes  */
@@ -34,6 +44,7 @@ static const u32 ar9485Common_wo_xlna_rx_gain_1_1[][2] = {
 	{0x00009e00, 0x037216a0},
 	{0x00009e04, 0x00182020},
 	{0x00009e18, 0x00000000},
+	{0x00009e20, 0x000003a8},
 	{0x00009e2c, 0x00004121},
 	{0x00009e44, 0x02282324},
 	{0x0000a000, 0x00060005},
@@ -174,7 +185,7 @@ static const u32 ar9485Modes_high_power_tx_gain_1_1[][5] = {
 	{0x0000a2e0, 0x00000000, 0x00000000, 0xfe2d3552, 0xfe2d3552},
 	{0x0000a2e4, 0x00000000, 0x00000000, 0xfe2d3552, 0xfe2d3552},
 	{0x0000a2e8, 0x00000000, 0x00000000, 0xfe2d3552, 0xfe2d3552},
-	{0x0000a410, 0x000050d9, 0x000050d9, 0x000050d8, 0x000050d8},
+	{0x0000a410, 0x000050d9, 0x000050d9, 0x000050da, 0x000050da},
 	{0x0000a458, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
 	{0x0000a500, 0x00022200, 0x00022200, 0x00000000, 0x00000000},
 	{0x0000a504, 0x05062002, 0x05062002, 0x04000002, 0x04000002},
@@ -200,14 +211,14 @@ static const u32 ar9485Modes_high_power_tx_gain_1_1[][5] = {
 	{0x0000a554, 0x7d06ffcb, 0x7d06ffcb, 0x57001ce9, 0x57001ce9},
 	{0x0000a558, 0x8407ff0b, 0x8407ff0b, 0x5a001ceb, 0x5a001ceb},
 	{0x0000a55c, 0x8907ffcb, 0x8907ffcb, 0x5e001eeb, 0x5e001eeb},
-	{0x0000a560, 0x900fff0b, 0x900fff0b, 0x5e001eeb, 0x5e001eeb},
-	{0x0000a564, 0x960fffcb, 0x960fffcb, 0x5e001eeb, 0x5e001eeb},
-	{0x0000a568, 0x9c1fff0b, 0x9c1fff0b, 0x5e001eeb, 0x5e001eeb},
-	{0x0000a56c, 0x9c1fff0b, 0x9c1fff0b, 0x5e001eeb, 0x5e001eeb},
-	{0x0000a570, 0x9c1fff0b, 0x9c1fff0b, 0x5e001eeb, 0x5e001eeb},
-	{0x0000a574, 0x9c1fff0b, 0x9c1fff0b, 0x5e001eeb, 0x5e001eeb},
-	{0x0000a578, 0x9c1fff0b, 0x9c1fff0b, 0x5e001eeb, 0x5e001eeb},
-	{0x0000a57c, 0x9c1fff0b, 0x9c1fff0b, 0x5e001eeb, 0x5e001eeb},
+	{0x0000a560, 0x900fff0b, 0x900fff0b, 0x62001eee, 0x62001eee},
+	{0x0000a564, 0x960fffcb, 0x960fffcb, 0x66001ff6, 0x66001ff6},
+	{0x0000a568, 0x9c1fff0b, 0x9c1fff0b, 0x66001ff6, 0x66001ff6},
+	{0x0000a56c, 0x9c1fff0b, 0x9c1fff0b, 0x66001ff6, 0x66001ff6},
+	{0x0000a570, 0x9c1fff0b, 0x9c1fff0b, 0x66001ff6, 0x66001ff6},
+	{0x0000a574, 0x9c1fff0b, 0x9c1fff0b, 0x66001ff6, 0x66001ff6},
+	{0x0000a578, 0x9c1fff0b, 0x9c1fff0b, 0x66001ff6, 0x66001ff6},
+	{0x0000a57c, 0x9c1fff0b, 0x9c1fff0b, 0x66001ff6, 0x66001ff6},
 	{0x0000a580, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
 	{0x0000a584, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
 	{0x0000a588, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
@@ -263,6 +274,11 @@ static const u32 ar9485Modes_high_power_tx_gain_1_1[][5] = {
 static const u32 ar9485Modes_green_ob_db_tx_gain_1_1[][5] = {
 	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
 	{0x000098bc, 0x00000003, 0x00000003, 0x00000003, 0x00000003},
+	{0x0000a2d8, 0xf999a83a, 0xf999a83a, 0x7999a83a, 0x7999a83a},
+	{0x0000a2dc, 0x00000000, 0x00000000, 0xfe2d3552, 0xfe2d3552},
+	{0x0000a2e0, 0x00000000, 0x00000000, 0xfe2d3552, 0xfe2d3552},
+	{0x0000a2e4, 0x00000000, 0x00000000, 0xfe2d3552, 0xfe2d3552},
+	{0x0000a2e8, 0x00000000, 0x00000000, 0xfe2d3552, 0xfe2d3552},
 	{0x0000a410, 0x000050d9, 0x000050d9, 0x000050d8, 0x000050d8},
 	{0x0000a458, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
 	{0x0000a500, 0x00022200, 0x00022200, 0x00000006, 0x00000006},
@@ -297,6 +313,22 @@ static const u32 ar9485Modes_green_ob_db_tx_gain_1_1[][5] = {
 	{0x0000a574, 0x9c1fff0b, 0x9c1fff0b, 0x5e001eeb, 0x5e001eeb},
 	{0x0000a578, 0x9c1fff0b, 0x9c1fff0b, 0x5e001eeb, 0x5e001eeb},
 	{0x0000a57c, 0x9c1fff0b, 0x9c1fff0b, 0x5e001eeb, 0x5e001eeb},
+	{0x0000a580, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a584, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a588, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a58c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a590, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a594, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a598, 0x00000000, 0x00000000, 0x01404501, 0x01404501},
+	{0x0000a59c, 0x00000000, 0x00000000, 0x02808a02, 0x02808a02},
+	{0x0000a5a0, 0x00000000, 0x00000000, 0x02808a02, 0x02808a02},
+	{0x0000a5a4, 0x00000000, 0x00000000, 0x02808803, 0x02808803},
+	{0x0000a5a8, 0x00000000, 0x00000000, 0x04c14b04, 0x04c14b04},
+	{0x0000a5ac, 0x00000000, 0x00000000, 0x04c15305, 0x04c15305},
+	{0x0000a5b0, 0x00000000, 0x00000000, 0x04c15305, 0x04c15305},
+	{0x0000a5b4, 0x00000000, 0x00000000, 0x04c15305, 0x04c15305},
+	{0x0000a5b8, 0x00000000, 0x00000000, 0x04c15305, 0x04c15305},
+	{0x0000a5bc, 0x00000000, 0x00000000, 0x04c15305, 0x04c15305},
 	{0x0000b500, 0x0000001a, 0x0000001a, 0x0000001a, 0x0000001a},
 	{0x0000b504, 0x0000001a, 0x0000001a, 0x0000001a, 0x0000001a},
 	{0x0000b508, 0x0000001a, 0x0000001a, 0x0000001a, 0x0000001a},
@@ -341,6 +373,100 @@ static const u32 ar9485Modes_high_ob_db_tx_gain_1_1[][5] = {
 	{0x0000a2e0, 0x00000000, 0x00000000, 0xffc63a84, 0xffc63a84},
 	{0x0000a2e4, 0x00000000, 0x00000000, 0xfe0fc000, 0xfe0fc000},
 	{0x0000a2e8, 0x00000000, 0x00000000, 0xfff00000, 0xfff00000},
+	{0x0000a410, 0x000050d9, 0x000050d9, 0x000050da, 0x000050da},
+	{0x0000a458, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a500, 0x00022200, 0x00022200, 0x00000000, 0x00000000},
+	{0x0000a504, 0x05062002, 0x05062002, 0x04000002, 0x04000002},
+	{0x0000a508, 0x0c002e00, 0x0c002e00, 0x08000004, 0x08000004},
+	{0x0000a50c, 0x11062202, 0x11062202, 0x0d000200, 0x0d000200},
+	{0x0000a510, 0x17022e00, 0x17022e00, 0x11000202, 0x11000202},
+	{0x0000a514, 0x1d000ec2, 0x1d000ec2, 0x15000400, 0x15000400},
+	{0x0000a518, 0x25020ec0, 0x25020ec0, 0x19000402, 0x19000402},
+	{0x0000a51c, 0x2b020ec3, 0x2b020ec3, 0x1d000404, 0x1d000404},
+	{0x0000a520, 0x2f001f04, 0x2f001f04, 0x21000603, 0x21000603},
+	{0x0000a524, 0x35001fc4, 0x35001fc4, 0x25000605, 0x25000605},
+	{0x0000a528, 0x3c022f04, 0x3c022f04, 0x2a000a03, 0x2a000a03},
+	{0x0000a52c, 0x41023e85, 0x41023e85, 0x2c000a04, 0x2c000a04},
+	{0x0000a530, 0x48023ec6, 0x48023ec6, 0x34000e20, 0x34000e20},
+	{0x0000a534, 0x4d023f01, 0x4d023f01, 0x35000e21, 0x35000e21},
+	{0x0000a538, 0x53023f4b, 0x53023f4b, 0x43000e62, 0x43000e62},
+	{0x0000a53c, 0x5a027f09, 0x5a027f09, 0x45000e63, 0x45000e63},
+	{0x0000a540, 0x5f027fc9, 0x5f027fc9, 0x49000e65, 0x49000e65},
+	{0x0000a544, 0x6502feca, 0x6502feca, 0x4b000e66, 0x4b000e66},
+	{0x0000a548, 0x6b02ff4a, 0x6b02ff4a, 0x4d001645, 0x4d001645},
+	{0x0000a54c, 0x7203feca, 0x7203feca, 0x51001865, 0x51001865},
+	{0x0000a550, 0x7703ff0b, 0x7703ff0b, 0x55001a86, 0x55001a86},
+	{0x0000a554, 0x7d06ffcb, 0x7d06ffcb, 0x57001ce9, 0x57001ce9},
+	{0x0000a558, 0x8407ff0b, 0x8407ff0b, 0x5a001ceb, 0x5a001ceb},
+	{0x0000a55c, 0x8907ffcb, 0x8907ffcb, 0x5e001eeb, 0x5e001eeb},
+	{0x0000a560, 0x900fff0b, 0x900fff0b, 0x62001eee, 0x62001eee},
+	{0x0000a564, 0x960fffcb, 0x960fffcb, 0x66001ff6, 0x66001ff6},
+	{0x0000a568, 0x9c1fff0b, 0x9c1fff0b, 0x66001ff6, 0x66001ff6},
+	{0x0000a56c, 0x9c1fff0b, 0x9c1fff0b, 0x66001ff6, 0x66001ff6},
+	{0x0000a570, 0x9c1fff0b, 0x9c1fff0b, 0x66001ff6, 0x66001ff6},
+	{0x0000a574, 0x9c1fff0b, 0x9c1fff0b, 0x66001ff6, 0x66001ff6},
+	{0x0000a578, 0x9c1fff0b, 0x9c1fff0b, 0x66001ff6, 0x66001ff6},
+	{0x0000a57c, 0x9c1fff0b, 0x9c1fff0b, 0x66001ff6, 0x66001ff6},
+	{0x0000a580, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a584, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a588, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a58c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a590, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a594, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a598, 0x00000000, 0x00000000, 0x01404501, 0x01404501},
+	{0x0000a59c, 0x00000000, 0x00000000, 0x02808a02, 0x02808a02},
+	{0x0000a5a0, 0x00000000, 0x00000000, 0x02808a02, 0x02808a02},
+	{0x0000a5a4, 0x00000000, 0x00000000, 0x02808803, 0x02808803},
+	{0x0000a5a8, 0x00000000, 0x00000000, 0x04c14b04, 0x04c14b04},
+	{0x0000a5ac, 0x00000000, 0x00000000, 0x04c15305, 0x04c15305},
+	{0x0000a5b0, 0x00000000, 0x00000000, 0x04c15305, 0x04c15305},
+	{0x0000a5b4, 0x00000000, 0x00000000, 0x04c15305, 0x04c15305},
+	{0x0000a5b8, 0x00000000, 0x00000000, 0x04c15305, 0x04c15305},
+	{0x0000a5bc, 0x00000000, 0x00000000, 0x04c15305, 0x04c15305},
+	{0x0000b500, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b504, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b508, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b50c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b510, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b514, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b518, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b51c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b520, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b524, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b528, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b52c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b530, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b534, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b538, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b53c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b540, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b544, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b548, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b54c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b550, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b554, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b558, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b55c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b560, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b564, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b568, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b56c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b570, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b574, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b578, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000b57c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x00016044, 0x05d6b2db, 0x05d6b2db, 0x05d6b2db, 0x05d6b2db},
+	{0x00016048, 0x6c924260, 0x6c924260, 0x6c924260, 0x6c924260},
+};
+
+static const u32 ar9485Modes_low_ob_db_tx_gain_1_1[][5] = {
+	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
+	{0x000098bc, 0x00000002, 0x00000002, 0x00000002, 0x00000002},
+	{0x0000a2d8, 0xf999a83a, 0xf999a83a, 0x7999a83a, 0x7999a83a},
+	{0x0000a2dc, 0x00000000, 0x00000000, 0xfe2d3552, 0xfe2d3552},
+	{0x0000a2e0, 0x00000000, 0x00000000, 0xfe2d3552, 0xfe2d3552},
+	{0x0000a2e4, 0x00000000, 0x00000000, 0xfe2d3552, 0xfe2d3552},
+	{0x0000a2e8, 0x00000000, 0x00000000, 0xfe2d3552, 0xfe2d3552},
 	{0x0000a410, 0x000050d9, 0x000050d9, 0x000050d8, 0x000050d8},
 	{0x0000a458, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
 	{0x0000a500, 0x00022200, 0x00022200, 0x00000000, 0x00000000},
@@ -427,7 +553,7 @@ static const u32 ar9485Modes_high_ob_db_tx_gain_1_1[][5] = {
 	{0x00016048, 0x6c924260, 0x6c924260, 0x6c924260, 0x6c924260},
 };
 
-static const u32 ar9485Modes_low_ob_db_tx_gain_1_1[][5] = {
+static const u32 ar9485_modes_lowest_ob_db_tx_gain_1_1[][5] = {
 	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
 	{0x000098bc, 0x00000002, 0x00000002, 0x00000002, 0x00000002},
 	{0x0000a2d8, 0xf999a83a, 0xf999a83a, 0x7999a83a, 0x7999a83a},
@@ -521,12 +647,15 @@ static const u32 ar9485Modes_low_ob_db_tx_gain_1_1[][5] = {
 	{0x00016048, 0x6c924260, 0x6c924260, 0x6c924260, 0x6c924260},
 };
 
-#define ar9485_modes_lowest_ob_db_tx_gain_1_1 ar9485Modes_low_ob_db_tx_gain_1_1
-
 static const u32 ar9485Modes_green_spur_ob_db_tx_gain_1_1[][5] = {
 	/* Addr      5G_HT20     5G_HT40     2G_HT40     2G_HT20   */
 	{0x000098bc, 0x00000003, 0x00000003, 0x00000003, 0x00000003},
-	{0x0000a410, 0x000050d9, 0x000050d9, 0x000050d8, 0x000050d8},
+	{0x0000a2d8, 0xf999a83a, 0xf999a83a, 0x7999a83a, 0x7999a83a},
+	{0x0000a2dc, 0x00000000, 0x00000000, 0xffad452a, 0xffad452a},
+	{0x0000a2e0, 0x00000000, 0x00000000, 0xffc98634, 0xffc98634},
+	{0x0000a2e4, 0x00000000, 0x00000000, 0xfff60780, 0xfff60780},
+	{0x0000a2e8, 0x00000000, 0x00000000, 0xfffff800, 0xfffff800},
+	{0x0000a410, 0x000050d9, 0x000050d9, 0x000050d9, 0x000050d9},
 	{0x0000a458, 0x80000000, 0x80000000, 0x80000000, 0x80000000},
 	{0x0000a500, 0x00022200, 0x00022200, 0x00000006, 0x00000006},
 	{0x0000a504, 0x05062002, 0x05062002, 0x03000201, 0x03000201},
@@ -543,23 +672,39 @@ static const u32 ar9485Modes_green_spur_ob_db_tx_gain_1_1[][5] = {
 	{0x0000a530, 0x48023ec6, 0x48023ec6, 0x310006e0, 0x310006e0},
 	{0x0000a534, 0x4d023f01, 0x4d023f01, 0x330006e0, 0x330006e0},
 	{0x0000a538, 0x53023f4b, 0x53023f4b, 0x3e0008e3, 0x3e0008e3},
-	{0x0000a53c, 0x5a027f09, 0x5a027f09, 0x410008e5, 0x410008e5},
-	{0x0000a540, 0x5f027fc9, 0x5f027fc9, 0x430008e6, 0x430008e6},
-	{0x0000a544, 0x6502feca, 0x6502feca, 0x4a0008ec, 0x4a0008ec},
-	{0x0000a548, 0x6b02ff4a, 0x6b02ff4a, 0x4e0008f1, 0x4e0008f1},
-	{0x0000a54c, 0x7203feca, 0x7203feca, 0x520008f3, 0x520008f3},
-	{0x0000a550, 0x7703ff0b, 0x7703ff0b, 0x54000eed, 0x54000eed},
-	{0x0000a554, 0x7d06ffcb, 0x7d06ffcb, 0x58000ef1, 0x58000ef1},
-	{0x0000a558, 0x8407ff0b, 0x8407ff0b, 0x5c000ef3, 0x5c000ef3},
-	{0x0000a55c, 0x8907ffcb, 0x8907ffcb, 0x60000ef5, 0x60000ef5},
-	{0x0000a560, 0x900fff0b, 0x900fff0b, 0x62000ef6, 0x62000ef6},
-	{0x0000a564, 0x960fffcb, 0x960fffcb, 0x62000ef6, 0x62000ef6},
-	{0x0000a568, 0x9c1fff0b, 0x9c1fff0b, 0x62000ef6, 0x62000ef6},
-	{0x0000a56c, 0x9c1fff0b, 0x9c1fff0b, 0x62000ef6, 0x62000ef6},
-	{0x0000a570, 0x9c1fff0b, 0x9c1fff0b, 0x62000ef6, 0x62000ef6},
-	{0x0000a574, 0x9c1fff0b, 0x9c1fff0b, 0x62000ef6, 0x62000ef6},
-	{0x0000a578, 0x9c1fff0b, 0x9c1fff0b, 0x62000ef6, 0x62000ef6},
-	{0x0000a57c, 0x9c1fff0b, 0x9c1fff0b, 0x62000ef6, 0x62000ef6},
+	{0x0000a53c, 0x5a027f09, 0x5a027f09, 0x430008e6, 0x430008e6},
+	{0x0000a540, 0x5f027fc9, 0x5f027fc9, 0x4a0008ec, 0x4a0008ec},
+	{0x0000a544, 0x6502feca, 0x6502feca, 0x4e0008f1, 0x4e0008f1},
+	{0x0000a548, 0x6b02ff4a, 0x6b02ff4a, 0x520008f3, 0x520008f3},
+	{0x0000a54c, 0x7203feca, 0x7203feca, 0x54000eed, 0x54000eed},
+	{0x0000a550, 0x7703ff0b, 0x7703ff0b, 0x58000ef1, 0x58000ef1},
+	{0x0000a554, 0x7d06ffcb, 0x7d06ffcb, 0x5c000ef3, 0x5c000ef3},
+	{0x0000a558, 0x8407ff0b, 0x8407ff0b, 0x62000ef6, 0x62000ef6},
+	{0x0000a55c, 0x8907ffcb, 0x8907ffcb, 0x66001ff0, 0x66001ff0},
+	{0x0000a560, 0x900fff0b, 0x900fff0b, 0x68001ff6, 0x68001ff6},
+	{0x0000a564, 0x960fffcb, 0x960fffcb, 0x68001ff6, 0x68001ff6},
+	{0x0000a568, 0x9c1fff0b, 0x9c1fff0b, 0x68001ff6, 0x68001ff6},
+	{0x0000a56c, 0x9c1fff0b, 0x9c1fff0b, 0x68001ff6, 0x68001ff6},
+	{0x0000a570, 0x9c1fff0b, 0x9c1fff0b, 0x68001ff6, 0x68001ff6},
+	{0x0000a574, 0x9c1fff0b, 0x9c1fff0b, 0x68001ff6, 0x68001ff6},
+	{0x0000a578, 0x9c1fff0b, 0x9c1fff0b, 0x68001ff6, 0x68001ff6},
+	{0x0000a57c, 0x9c1fff0b, 0x9c1fff0b, 0x68001ff6, 0x68001ff6},
+	{0x0000a580, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a584, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a588, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
+	{0x0000a58c, 0x00000000, 0x00000000, 0x01804000, 0x01804000},
+	{0x0000a590, 0x00000000, 0x00000000, 0x02808a02, 0x02808a02},
+	{0x0000a594, 0x00000000, 0x00000000, 0x0340ca02, 0x0340ca02},
+	{0x0000a598, 0x00000000, 0x00000000, 0x0340cd03, 0x0340cd03},
+	{0x0000a59c, 0x00000000, 0x00000000, 0x0340cd03, 0x0340cd03},
+	{0x0000a5a0, 0x00000000, 0x00000000, 0x06415304, 0x06415304},
+	{0x0000a5a4, 0x00000000, 0x00000000, 0x04c11905, 0x04c11905},
+	{0x0000a5a8, 0x00000000, 0x00000000, 0x06415905, 0x06415905},
+	{0x0000a5ac, 0x00000000, 0x00000000, 0x06415905, 0x06415905},
+	{0x0000a5b0, 0x00000000, 0x00000000, 0x06415905, 0x06415905},
+	{0x0000a5b4, 0x00000000, 0x00000000, 0x06415905, 0x06415905},
+	{0x0000a5b8, 0x00000000, 0x00000000, 0x06415905, 0x06415905},
+	{0x0000a5bc, 0x00000000, 0x00000000, 0x06415905, 0x06415905},
 	{0x0000b500, 0x0000001a, 0x0000001a, 0x0000001a, 0x0000001a},
 	{0x0000b504, 0x0000001a, 0x0000001a, 0x0000001a, 0x0000001a},
 	{0x0000b508, 0x0000001a, 0x0000001a, 0x0000001a, 0x0000001a},
@@ -823,6 +968,7 @@ static const u32 ar9485_common_rx_gain_1_1[][2] = {
 	{0x00009e00, 0x03721b20},
 	{0x00009e04, 0x00082020},
 	{0x00009e18, 0x0300501e},
+	{0x00009e20, 0x000003ba},
 	{0x00009e2c, 0x00002e21},
 	{0x00009e44, 0x02182324},
 	{0x0000a000, 0x00060005},
@@ -1001,7 +1147,6 @@ static const u32 ar9485_1_1_baseband_postamble[][5] = {
 	{0x00009e10, 0x7ec88d2e, 0x7ec88d2e, 0x7ec80d2e, 0x7ec80d2e},
 	{0x00009e14, 0x31395d53, 0x31396053, 0x312e6053, 0x312e5d53},
 	{0x00009e1c, 0x0001cf9c, 0x0001cf9c, 0x00021f9c, 0x00021f9c},
-	{0x00009e20, 0x000003b5, 0x000003b5, 0x000003ce, 0x000003ce},
 	{0x00009e3c, 0xcf946220, 0xcf946220, 0xcf946222, 0xcf946222},
 	{0x00009e48, 0x5030201a, 0x5030201a, 0x50302010, 0x50302010},
 	{0x00009fc8, 0x0003f000, 0x0003f000, 0x0001a000, 0x0001a000},
@@ -1020,7 +1165,7 @@ static const u32 ar9485_1_1_baseband_postamble[][5] = {
 	{0x0000a284, 0x00000000, 0x00000000, 0x000002a0, 0x000002a0},
 	{0x0000a288, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
 	{0x0000a28c, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
-	{0x0000a2c4, 0x00158d18, 0x00158d18, 0x00058d18, 0x00058d18},
+	{0x0000a2c4, 0x00158d18, 0x00158d18, 0x00158d18, 0x00158d18},
 	{0x0000a2d0, 0x00071981, 0x00071981, 0x00071982, 0x00071982},
 	{0x0000a2d8, 0xf999a83a, 0xf999a83a, 0xf999a83a, 0xf999a83a},
 	{0x0000a358, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
@@ -1206,6 +1351,11 @@ static const u32 ar9485_1_1_mac_core[][2] = {
 	{0x000083d0, 0x000301ff},
 };
 
-#define ar9485_1_1_baseband_core_txfir_coeff_japan_2484 ar9462_2p0_baseband_core_txfir_coeff_japan_2484
+static const u32 ar9485_1_1_baseband_core_txfir_coeff_japan_2484[][2] = {
+	/* Addr      allmodes  */
+	{0x0000a398, 0x00000000},
+	{0x0000a39c, 0x6f7f0301},
+	{0x0000a3a0, 0xca9228ee},
+};
 
 #endif /* INITVALS_9485_H */
-- 
cgit 


From bf7c756c5d653a63c9bbef4686ae57efcfdaee3d Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Thu, 5 Sep 2013 10:56:54 +0530
Subject: ath9k: Add DELL 1707 to supported card table

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/pci.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index 1aa757a0025e..7e4c2524b630 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -379,6 +379,11 @@ static DEFINE_PCI_DEVICE_TABLE(ath_pci_id_table) = {
 			 PCI_VENDOR_ID_HP,
 			 0x217F),
 	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0036,
+			 PCI_VENDOR_ID_DELL,
+			 0x020E),
+	  .driver_data = ATH9K_PCI_AR9565_1ANT | ATH9K_PCI_BT_ANT_DIV },
 
 	/* WB335 2-ANT */
 	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
-- 
cgit 


From 5e88ba6228e66741811992a6c1d7cf37195ed4be Mon Sep 17 00:00:00 2001
From: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Date: Thu, 5 Sep 2013 14:11:57 +0200
Subject: ath9k: replace snprintf() with scnprintf()

Whenever the return value of snprintf() is used to calculate
remaining buffer-space, we wanted to use sncprintf() instead.

Indentation is adapted where possible. Some lines exceed the
line width limit, either they did it already before, or
since they can not be broken reasonably well.

Signed-off-by: Zefir Kurtisi <zefir.kurtisi@neratec.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ar9003_eeprom.c |  12 +-
 drivers/net/wireless/ath/ath9k/ath9k.h         |   4 +-
 drivers/net/wireless/ath/ath9k/debug.c         | 446 ++++++++++++------------
 drivers/net/wireless/ath/ath9k/debug.h         |  12 +-
 drivers/net/wireless/ath/ath9k/dfs_debug.c     |  25 +-
 drivers/net/wireless/ath/ath9k/eeprom_4k.c     |  10 +-
 drivers/net/wireless/ath/ath9k/eeprom_9287.c   |   8 +-
 drivers/net/wireless/ath/ath9k/eeprom_def.c    |  12 +-
 drivers/net/wireless/ath/ath9k/gpio.c          |  22 +-
 drivers/net/wireless/ath/ath9k/htc_drv_debug.c | 456 ++++++++++++-------------
 drivers/net/wireless/ath/ath9k/hw.c            |  22 +-
 drivers/net/wireless/ath/ath9k/hw.h            |   4 +-
 drivers/net/wireless/ath/ath9k/rc.c            |  32 +-
 13 files changed, 534 insertions(+), 531 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
index 5982256078d8..1ec52356b5a1 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
@@ -3427,12 +3427,12 @@ static u32 ath9k_hw_ar9003_dump_eeprom(struct ath_hw *ah, bool dump_base_hdr,
 	struct ar9300_base_eep_hdr *pBase;
 
 	if (!dump_base_hdr) {
-		len += snprintf(buf + len, size - len,
-				"%20s :\n", "2GHz modal Header");
+		len += scnprintf(buf + len, size - len,
+				 "%20s :\n", "2GHz modal Header");
 		len = ar9003_dump_modal_eeprom(buf, len, size,
 						&eep->modalHeader2G);
-		len += snprintf(buf + len, size - len,
-				"%20s :\n", "5GHz modal Header");
+		len += scnprintf(buf + len, size - len,
+				 "%20s :\n", "5GHz modal Header");
 		len = ar9003_dump_modal_eeprom(buf, len, size,
 						&eep->modalHeader5G);
 		goto out;
@@ -3482,8 +3482,8 @@ static u32 ath9k_hw_ar9003_dump_eeprom(struct ath_hw *ah, bool dump_base_hdr,
 	PR_EEP("Rx Gain", pBase->txrxgain & 0xf);
 	PR_EEP("SW Reg", le32_to_cpu(pBase->swreg));
 
-	len += snprintf(buf + len, size - len, "%20s : %pM\n", "MacAddress",
-			ah->eeprom.ar9300_eep.macAddr);
+	len += scnprintf(buf + len, size - len, "%20s : %pM\n", "MacAddress",
+			 ah->eeprom.ar9300_eep.macAddr);
 out:
 	if (len > size)
 		len = size;
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 5fd429485e76..8878f2dada2d 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -459,8 +459,8 @@ void ath9k_queue_reset(struct ath_softc *sc, enum ath_reset_type type);
 
 #define ATH_DUMP_BTCOEX(_s, _val)				\
 	do {							\
-		len += snprintf(buf + len, size - len,		\
-				"%20s : %10d\n", _s, (_val));	\
+		len += scnprintf(buf + len, size - len,		\
+				 "%20s : %10d\n", _s, (_val));	\
 	} while (0)
 
 enum bt_op_flags {
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index c088744a6bfb..1be2c787aac9 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -104,37 +104,37 @@ static ssize_t read_file_ani(struct file *file, char __user *user_buf,
 		return -ENOMEM;
 
 	if (common->disable_ani) {
-		len += snprintf(buf + len, size - len, "%s: %s\n",
-				"ANI", "DISABLED");
+		len += scnprintf(buf + len, size - len, "%s: %s\n",
+				 "ANI", "DISABLED");
 		goto exit;
 	}
 
-	len += snprintf(buf + len, size - len, "%15s: %s\n",
-			"ANI", "ENABLED");
-	len += snprintf(buf + len, size - len, "%15s: %u\n",
-			"ANI RESET", ah->stats.ast_ani_reset);
-	len += snprintf(buf + len, size - len, "%15s: %u\n",
-			"SPUR UP", ah->stats.ast_ani_spurup);
-	len += snprintf(buf + len, size - len, "%15s: %u\n",
-			"SPUR DOWN", ah->stats.ast_ani_spurup);
-	len += snprintf(buf + len, size - len, "%15s: %u\n",
-			"OFDM WS-DET ON", ah->stats.ast_ani_ofdmon);
-	len += snprintf(buf + len, size - len, "%15s: %u\n",
-			"OFDM WS-DET OFF", ah->stats.ast_ani_ofdmoff);
-	len += snprintf(buf + len, size - len, "%15s: %u\n",
-			"MRC-CCK ON", ah->stats.ast_ani_ccklow);
-	len += snprintf(buf + len, size - len, "%15s: %u\n",
-			"MRC-CCK OFF", ah->stats.ast_ani_cckhigh);
-	len += snprintf(buf + len, size - len, "%15s: %u\n",
-			"FIR-STEP UP", ah->stats.ast_ani_stepup);
-	len += snprintf(buf + len, size - len, "%15s: %u\n",
-			"FIR-STEP DOWN", ah->stats.ast_ani_stepdown);
-	len += snprintf(buf + len, size - len, "%15s: %u\n",
-			"INV LISTENTIME", ah->stats.ast_ani_lneg_or_lzero);
-	len += snprintf(buf + len, size - len, "%15s: %u\n",
-			"OFDM ERRORS", ah->stats.ast_ani_ofdmerrs);
-	len += snprintf(buf + len, size - len, "%15s: %u\n",
-			"CCK ERRORS", ah->stats.ast_ani_cckerrs);
+	len += scnprintf(buf + len, size - len, "%15s: %s\n",
+			 "ANI", "ENABLED");
+	len += scnprintf(buf + len, size - len, "%15s: %u\n",
+			 "ANI RESET", ah->stats.ast_ani_reset);
+	len += scnprintf(buf + len, size - len, "%15s: %u\n",
+			 "SPUR UP", ah->stats.ast_ani_spurup);
+	len += scnprintf(buf + len, size - len, "%15s: %u\n",
+			 "SPUR DOWN", ah->stats.ast_ani_spurup);
+	len += scnprintf(buf + len, size - len, "%15s: %u\n",
+			 "OFDM WS-DET ON", ah->stats.ast_ani_ofdmon);
+	len += scnprintf(buf + len, size - len, "%15s: %u\n",
+			 "OFDM WS-DET OFF", ah->stats.ast_ani_ofdmoff);
+	len += scnprintf(buf + len, size - len, "%15s: %u\n",
+			 "MRC-CCK ON", ah->stats.ast_ani_ccklow);
+	len += scnprintf(buf + len, size - len, "%15s: %u\n",
+			 "MRC-CCK OFF", ah->stats.ast_ani_cckhigh);
+	len += scnprintf(buf + len, size - len, "%15s: %u\n",
+			 "FIR-STEP UP", ah->stats.ast_ani_stepup);
+	len += scnprintf(buf + len, size - len, "%15s: %u\n",
+			 "FIR-STEP DOWN", ah->stats.ast_ani_stepdown);
+	len += scnprintf(buf + len, size - len, "%15s: %u\n",
+			 "INV LISTENTIME", ah->stats.ast_ani_lneg_or_lzero);
+	len += scnprintf(buf + len, size - len, "%15s: %u\n",
+			 "OFDM ERRORS", ah->stats.ast_ani_ofdmerrs);
+	len += scnprintf(buf + len, size - len, "%15s: %u\n",
+			 "CCK ERRORS", ah->stats.ast_ani_cckerrs);
 exit:
 	if (len > size)
 		len = size;
@@ -280,70 +280,70 @@ static ssize_t read_file_antenna_diversity(struct file *file,
 		return -ENOMEM;
 
 	if (!(pCap->hw_caps & ATH9K_HW_CAP_ANT_DIV_COMB)) {
-		len += snprintf(buf + len, size - len, "%s\n",
-				"Antenna Diversity Combining is disabled");
+		len += scnprintf(buf + len, size - len, "%s\n",
+				 "Antenna Diversity Combining is disabled");
 		goto exit;
 	}
 
 	ath9k_ps_wakeup(sc);
 	ath9k_hw_antdiv_comb_conf_get(ah, &div_ant_conf);
-	len += snprintf(buf + len, size - len, "Current MAIN config : %s\n",
-			lna_conf_str[div_ant_conf.main_lna_conf]);
-	len += snprintf(buf + len, size - len, "Current ALT config  : %s\n",
-			lna_conf_str[div_ant_conf.alt_lna_conf]);
-	len += snprintf(buf + len, size - len, "Average MAIN RSSI   : %d\n",
-			as_main->rssi_avg);
-	len += snprintf(buf + len, size - len, "Average ALT RSSI    : %d\n\n",
-			as_alt->rssi_avg);
+	len += scnprintf(buf + len, size - len, "Current MAIN config : %s\n",
+			 lna_conf_str[div_ant_conf.main_lna_conf]);
+	len += scnprintf(buf + len, size - len, "Current ALT config  : %s\n",
+			 lna_conf_str[div_ant_conf.alt_lna_conf]);
+	len += scnprintf(buf + len, size - len, "Average MAIN RSSI   : %d\n",
+			 as_main->rssi_avg);
+	len += scnprintf(buf + len, size - len, "Average ALT RSSI    : %d\n\n",
+			 as_alt->rssi_avg);
 	ath9k_ps_restore(sc);
 
-	len += snprintf(buf + len, size - len, "Packet Receive Cnt:\n");
-	len += snprintf(buf + len, size - len, "-------------------\n");
-
-	len += snprintf(buf + len, size - len, "%30s%15s\n",
-			"MAIN", "ALT");
-	len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
-			"TOTAL COUNT",
-			as_main->recv_cnt,
-			as_alt->recv_cnt);
-	len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
-			"LNA1",
-			as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1],
-			as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1]);
-	len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
-			"LNA2",
-			as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA2],
-			as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA2]);
-	len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
-			"LNA1 + LNA2",
-			as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2],
-			as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2]);
-	len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
-			"LNA1 - LNA2",
-			as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2],
-			as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2]);
-
-	len += snprintf(buf + len, size - len, "\nLNA Config Attempts:\n");
-	len += snprintf(buf + len, size - len, "--------------------\n");
-
-	len += snprintf(buf + len, size - len, "%30s%15s\n",
-			"MAIN", "ALT");
-	len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
-			"LNA1",
-			as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1],
-			as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1]);
-	len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
-			"LNA2",
-			as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA2],
-			as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA2]);
-	len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
-			"LNA1 + LNA2",
-			as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2],
-			as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2]);
-	len += snprintf(buf + len, size - len, "%-14s:%15d%15d\n",
-			"LNA1 - LNA2",
-			as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2],
-			as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2]);
+	len += scnprintf(buf + len, size - len, "Packet Receive Cnt:\n");
+	len += scnprintf(buf + len, size - len, "-------------------\n");
+
+	len += scnprintf(buf + len, size - len, "%30s%15s\n",
+			 "MAIN", "ALT");
+	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
+			 "TOTAL COUNT",
+			 as_main->recv_cnt,
+			 as_alt->recv_cnt);
+	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
+			 "LNA1",
+			 as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1],
+			 as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1]);
+	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
+			 "LNA2",
+			 as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA2],
+			 as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA2]);
+	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
+			 "LNA1 + LNA2",
+			 as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2],
+			 as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2]);
+	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
+			 "LNA1 - LNA2",
+			 as_main->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2],
+			 as_alt->lna_recv_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2]);
+
+	len += scnprintf(buf + len, size - len, "\nLNA Config Attempts:\n");
+	len += scnprintf(buf + len, size - len, "--------------------\n");
+
+	len += scnprintf(buf + len, size - len, "%30s%15s\n",
+			 "MAIN", "ALT");
+	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
+			 "LNA1",
+			 as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1],
+			 as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1]);
+	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
+			 "LNA2",
+			 as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA2],
+			 as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA2]);
+	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
+			 "LNA1 + LNA2",
+			 as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2],
+			 as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_PLUS_LNA2]);
+	len += scnprintf(buf + len, size - len, "%-14s:%15d%15d\n",
+			 "LNA1 - LNA2",
+			 as_main->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2],
+			 as_alt->lna_attempt_cnt[ATH_ANT_DIV_COMB_LNA1_MINUS_LNA2]);
 
 exit:
 	if (len > size)
@@ -385,21 +385,21 @@ static ssize_t read_file_dma(struct file *file, char __user *user_buf,
 		   (AR_MACMISC_MISC_OBS_BUS_1 <<
 		    AR_MACMISC_MISC_OBS_BUS_MSB_S)));
 
-	len += snprintf(buf + len, DMA_BUF_LEN - len,
-			"Raw DMA Debug values:\n");
+	len += scnprintf(buf + len, DMA_BUF_LEN - len,
+			 "Raw DMA Debug values:\n");
 
 	for (i = 0; i < ATH9K_NUM_DMA_DEBUG_REGS; i++) {
 		if (i % 4 == 0)
-			len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
+			len += scnprintf(buf + len, DMA_BUF_LEN - len, "\n");
 
 		val[i] = REG_READ_D(ah, AR_DMADBG_0 + (i * sizeof(u32)));
-		len += snprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ",
-				i, val[i]);
+		len += scnprintf(buf + len, DMA_BUF_LEN - len, "%d: %08x ",
+				 i, val[i]);
 	}
 
-	len += snprintf(buf + len, DMA_BUF_LEN - len, "\n\n");
-	len += snprintf(buf + len, DMA_BUF_LEN - len,
-			"Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
+	len += scnprintf(buf + len, DMA_BUF_LEN - len, "\n\n");
+	len += scnprintf(buf + len, DMA_BUF_LEN - len,
+			 "Num QCU: chain_st fsp_ok fsp_st DCU: chain_st\n");
 
 	for (i = 0; i < ATH9K_NUM_QUEUES; i++, qcuOffset += 4, dcuOffset += 5) {
 		if (i == 8) {
@@ -412,39 +412,39 @@ static ssize_t read_file_dma(struct file *file, char __user *user_buf,
 			dcuBase++;
 		}
 
-		len += snprintf(buf + len, DMA_BUF_LEN - len,
-			"%2d          %2x      %1x     %2x           %2x\n",
-			i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
-			(*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
-			val[2] & (0x7 << (i * 3)) >> (i * 3),
-			(*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
+		len += scnprintf(buf + len, DMA_BUF_LEN - len,
+			 "%2d          %2x      %1x     %2x           %2x\n",
+			 i, (*qcuBase & (0x7 << qcuOffset)) >> qcuOffset,
+			 (*qcuBase & (0x8 << qcuOffset)) >> (qcuOffset + 3),
+			 val[2] & (0x7 << (i * 3)) >> (i * 3),
+			 (*dcuBase & (0x1f << dcuOffset)) >> dcuOffset);
 	}
 
-	len += snprintf(buf + len, DMA_BUF_LEN - len, "\n");
+	len += scnprintf(buf + len, DMA_BUF_LEN - len, "\n");
 
-	len += snprintf(buf + len, DMA_BUF_LEN - len,
+	len += scnprintf(buf + len, DMA_BUF_LEN - len,
 		"qcu_stitch state:   %2x    qcu_fetch state:        %2x\n",
 		(val[3] & 0x003c0000) >> 18, (val[3] & 0x03c00000) >> 22);
-	len += snprintf(buf + len, DMA_BUF_LEN - len,
+	len += scnprintf(buf + len, DMA_BUF_LEN - len,
 		"qcu_complete state: %2x    dcu_complete state:     %2x\n",
 		(val[3] & 0x1c000000) >> 26, (val[6] & 0x3));
-	len += snprintf(buf + len, DMA_BUF_LEN - len,
+	len += scnprintf(buf + len, DMA_BUF_LEN - len,
 		"dcu_arb state:      %2x    dcu_fp state:           %2x\n",
 		(val[5] & 0x06000000) >> 25, (val[5] & 0x38000000) >> 27);
-	len += snprintf(buf + len, DMA_BUF_LEN - len,
+	len += scnprintf(buf + len, DMA_BUF_LEN - len,
 		"chan_idle_dur:     %3d    chan_idle_dur_valid:     %1d\n",
 		(val[6] & 0x000003fc) >> 2, (val[6] & 0x00000400) >> 10);
-	len += snprintf(buf + len, DMA_BUF_LEN - len,
+	len += scnprintf(buf + len, DMA_BUF_LEN - len,
 		"txfifo_valid_0:      %1d    txfifo_valid_1:          %1d\n",
 		(val[6] & 0x00000800) >> 11, (val[6] & 0x00001000) >> 12);
-	len += snprintf(buf + len, DMA_BUF_LEN - len,
+	len += scnprintf(buf + len, DMA_BUF_LEN - len,
 		"txfifo_dcu_num_0:   %2d    txfifo_dcu_num_1:       %2d\n",
 		(val[6] & 0x0001e000) >> 13, (val[6] & 0x001e0000) >> 17);
 
-	len += snprintf(buf + len, DMA_BUF_LEN - len, "pcu observe: 0x%x\n",
-			REG_READ_D(ah, AR_OBS_BUS_1));
-	len += snprintf(buf + len, DMA_BUF_LEN - len,
-			"AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
+	len += scnprintf(buf + len, DMA_BUF_LEN - len, "pcu observe: 0x%x\n",
+			 REG_READ_D(ah, AR_OBS_BUS_1));
+	len += scnprintf(buf + len, DMA_BUF_LEN - len,
+			 "AR_CR: 0x%x\n", REG_READ_D(ah, AR_CR));
 
 	ath9k_ps_restore(sc);
 
@@ -530,9 +530,9 @@ static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
 
 #define PR_IS(a, s)						\
 	do {							\
-		len += snprintf(buf + len, mxlen - len,		\
-				"%21s: %10u\n", a,		\
-				sc->debug.stats.istats.s);	\
+		len += scnprintf(buf + len, mxlen - len,	\
+				 "%21s: %10u\n", a,		\
+				 sc->debug.stats.istats.s);	\
 	} while (0)
 
 	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
@@ -563,8 +563,8 @@ static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
 	PR_IS("GENTIMER", gen_timer);
 	PR_IS("TOTAL", total);
 
-	len += snprintf(buf + len, mxlen - len,
-			"SYNC_CAUSE stats:\n");
+	len += scnprintf(buf + len, mxlen - len,
+			 "SYNC_CAUSE stats:\n");
 
 	PR_IS("Sync-All", sync_cause_all);
 	PR_IS("RTC-IRQ", sync_rtc_irq);
@@ -655,16 +655,16 @@ static ssize_t print_queue(struct ath_softc *sc, struct ath_txq *txq,
 
 	ath_txq_lock(sc, txq);
 
-	len += snprintf(buf + len, size - len, "%s: %d ",
-			"qnum", txq->axq_qnum);
-	len += snprintf(buf + len, size - len, "%s: %2d ",
-			"qdepth", txq->axq_depth);
-	len += snprintf(buf + len, size - len, "%s: %2d ",
-			"ampdu-depth", txq->axq_ampdu_depth);
-	len += snprintf(buf + len, size - len, "%s: %3d ",
-			"pending", txq->pending_frames);
-	len += snprintf(buf + len, size - len, "%s: %d\n",
-			"stopped", txq->stopped);
+	len += scnprintf(buf + len, size - len, "%s: %d ",
+			 "qnum", txq->axq_qnum);
+	len += scnprintf(buf + len, size - len, "%s: %2d ",
+			 "qdepth", txq->axq_depth);
+	len += scnprintf(buf + len, size - len, "%s: %2d ",
+			 "ampdu-depth", txq->axq_ampdu_depth);
+	len += scnprintf(buf + len, size - len, "%s: %3d ",
+			 "pending", txq->pending_frames);
+	len += scnprintf(buf + len, size - len, "%s: %d\n",
+			 "stopped", txq->stopped);
 
 	ath_txq_unlock(sc, txq);
 	return len;
@@ -687,11 +687,11 @@ static ssize_t read_file_queues(struct file *file, char __user *user_buf,
 
 	for (i = 0; i < IEEE80211_NUM_ACS; i++) {
 		txq = sc->tx.txq_map[i];
-		len += snprintf(buf + len, size - len, "(%s):  ", qname[i]);
+		len += scnprintf(buf + len, size - len, "(%s):  ", qname[i]);
 		len += print_queue(sc, txq, buf + len, size - len);
 	}
 
-	len += snprintf(buf + len, size - len, "(CAB): ");
+	len += scnprintf(buf + len, size - len, "(CAB): ");
 	len += print_queue(sc, sc->beacon.cabq, buf + len, size - len);
 
 	if (len > size)
@@ -716,80 +716,82 @@ static ssize_t read_file_misc(struct file *file, char __user *user_buf,
 	unsigned int reg;
 	u32 rxfilter;
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"BSSID: %pM\n", common->curbssid);
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"BSSID-MASK: %pM\n", common->bssidmask);
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"OPMODE: %s\n", ath_opmode_to_string(sc->sc_ah->opmode));
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "BSSID: %pM\n", common->curbssid);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "BSSID-MASK: %pM\n", common->bssidmask);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "OPMODE: %s\n",
+			 ath_opmode_to_string(sc->sc_ah->opmode));
 
 	ath9k_ps_wakeup(sc);
 	rxfilter = ath9k_hw_getrxfilter(sc->sc_ah);
 	ath9k_ps_restore(sc);
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"RXFILTER: 0x%x", rxfilter);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "RXFILTER: 0x%x", rxfilter);
 
 	if (rxfilter & ATH9K_RX_FILTER_UCAST)
-		len += snprintf(buf + len, sizeof(buf) - len, " UCAST");
+		len += scnprintf(buf + len, sizeof(buf) - len, " UCAST");
 	if (rxfilter & ATH9K_RX_FILTER_MCAST)
-		len += snprintf(buf + len, sizeof(buf) - len, " MCAST");
+		len += scnprintf(buf + len, sizeof(buf) - len, " MCAST");
 	if (rxfilter & ATH9K_RX_FILTER_BCAST)
-		len += snprintf(buf + len, sizeof(buf) - len, " BCAST");
+		len += scnprintf(buf + len, sizeof(buf) - len, " BCAST");
 	if (rxfilter & ATH9K_RX_FILTER_CONTROL)
-		len += snprintf(buf + len, sizeof(buf) - len, " CONTROL");
+		len += scnprintf(buf + len, sizeof(buf) - len, " CONTROL");
 	if (rxfilter & ATH9K_RX_FILTER_BEACON)
-		len += snprintf(buf + len, sizeof(buf) - len, " BEACON");
+		len += scnprintf(buf + len, sizeof(buf) - len, " BEACON");
 	if (rxfilter & ATH9K_RX_FILTER_PROM)
-		len += snprintf(buf + len, sizeof(buf) - len, " PROM");
+		len += scnprintf(buf + len, sizeof(buf) - len, " PROM");
 	if (rxfilter & ATH9K_RX_FILTER_PROBEREQ)
-		len += snprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
+		len += scnprintf(buf + len, sizeof(buf) - len, " PROBEREQ");
 	if (rxfilter & ATH9K_RX_FILTER_PHYERR)
-		len += snprintf(buf + len, sizeof(buf) - len, " PHYERR");
+		len += scnprintf(buf + len, sizeof(buf) - len, " PHYERR");
 	if (rxfilter & ATH9K_RX_FILTER_MYBEACON)
-		len += snprintf(buf + len, sizeof(buf) - len, " MYBEACON");
+		len += scnprintf(buf + len, sizeof(buf) - len, " MYBEACON");
 	if (rxfilter & ATH9K_RX_FILTER_COMP_BAR)
-		len += snprintf(buf + len, sizeof(buf) - len, " COMP_BAR");
+		len += scnprintf(buf + len, sizeof(buf) - len, " COMP_BAR");
 	if (rxfilter & ATH9K_RX_FILTER_PSPOLL)
-		len += snprintf(buf + len, sizeof(buf) - len, " PSPOLL");
+		len += scnprintf(buf + len, sizeof(buf) - len, " PSPOLL");
 	if (rxfilter & ATH9K_RX_FILTER_PHYRADAR)
-		len += snprintf(buf + len, sizeof(buf) - len, " PHYRADAR");
+		len += scnprintf(buf + len, sizeof(buf) - len, " PHYRADAR");
 	if (rxfilter & ATH9K_RX_FILTER_MCAST_BCAST_ALL)
-		len += snprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL");
+		len += scnprintf(buf + len, sizeof(buf) - len, " MCAST_BCAST_ALL");
 	if (rxfilter & ATH9K_RX_FILTER_CONTROL_WRAPPER)
-		len += snprintf(buf + len, sizeof(buf) - len, " CONTROL_WRAPPER");
+		len += scnprintf(buf + len, sizeof(buf) - len, " CONTROL_WRAPPER");
 
-	len += snprintf(buf + len, sizeof(buf) - len, "\n");
+	len += scnprintf(buf + len, sizeof(buf) - len, "\n");
 
 	reg = sc->sc_ah->imask;
 
-	len += snprintf(buf + len, sizeof(buf) - len, "INTERRUPT-MASK: 0x%x", reg);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "INTERRUPT-MASK: 0x%x", reg);
 
 	if (reg & ATH9K_INT_SWBA)
-		len += snprintf(buf + len, sizeof(buf) - len, " SWBA");
+		len += scnprintf(buf + len, sizeof(buf) - len, " SWBA");
 	if (reg & ATH9K_INT_BMISS)
-		len += snprintf(buf + len, sizeof(buf) - len, " BMISS");
+		len += scnprintf(buf + len, sizeof(buf) - len, " BMISS");
 	if (reg & ATH9K_INT_CST)
-		len += snprintf(buf + len, sizeof(buf) - len, " CST");
+		len += scnprintf(buf + len, sizeof(buf) - len, " CST");
 	if (reg & ATH9K_INT_RX)
-		len += snprintf(buf + len, sizeof(buf) - len, " RX");
+		len += scnprintf(buf + len, sizeof(buf) - len, " RX");
 	if (reg & ATH9K_INT_RXHP)
-		len += snprintf(buf + len, sizeof(buf) - len, " RXHP");
+		len += scnprintf(buf + len, sizeof(buf) - len, " RXHP");
 	if (reg & ATH9K_INT_RXLP)
-		len += snprintf(buf + len, sizeof(buf) - len, " RXLP");
+		len += scnprintf(buf + len, sizeof(buf) - len, " RXLP");
 	if (reg & ATH9K_INT_BB_WATCHDOG)
-		len += snprintf(buf + len, sizeof(buf) - len, " BB_WATCHDOG");
+		len += scnprintf(buf + len, sizeof(buf) - len, " BB_WATCHDOG");
 
-	len += snprintf(buf + len, sizeof(buf) - len, "\n");
+	len += scnprintf(buf + len, sizeof(buf) - len, "\n");
 
 	ath9k_calculate_iter_data(hw, NULL, &iter_data);
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"VIF-COUNTS: AP: %i STA: %i MESH: %i WDS: %i"
-			" ADHOC: %i TOTAL: %hi BEACON-VIF: %hi\n",
-			iter_data.naps, iter_data.nstations, iter_data.nmeshes,
-			iter_data.nwds, iter_data.nadhocs,
-			sc->nvifs, sc->nbcnvifs);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "VIF-COUNTS: AP: %i STA: %i MESH: %i WDS: %i"
+			 " ADHOC: %i TOTAL: %hi BEACON-VIF: %hi\n",
+			 iter_data.naps, iter_data.nstations, iter_data.nmeshes,
+			 iter_data.nwds, iter_data.nadhocs,
+			 sc->nvifs, sc->nbcnvifs);
 
 	if (len > sizeof(buf))
 		len = sizeof(buf);
@@ -805,27 +807,27 @@ static ssize_t read_file_reset(struct file *file, char __user *user_buf,
 	char buf[512];
 	unsigned int len = 0;
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%17s: %2d\n", "Baseband Hang",
-			sc->debug.stats.reset[RESET_TYPE_BB_HANG]);
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%17s: %2d\n", "Baseband Watchdog",
-			sc->debug.stats.reset[RESET_TYPE_BB_WATCHDOG]);
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%17s: %2d\n", "Fatal HW Error",
-			sc->debug.stats.reset[RESET_TYPE_FATAL_INT]);
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%17s: %2d\n", "TX HW error",
-			sc->debug.stats.reset[RESET_TYPE_TX_ERROR]);
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%17s: %2d\n", "TX Path Hang",
-			sc->debug.stats.reset[RESET_TYPE_TX_HANG]);
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%17s: %2d\n", "PLL RX Hang",
-			sc->debug.stats.reset[RESET_TYPE_PLL_HANG]);
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%17s: %2d\n", "MCI Reset",
-			sc->debug.stats.reset[RESET_TYPE_MCI]);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%17s: %2d\n", "Baseband Hang",
+			 sc->debug.stats.reset[RESET_TYPE_BB_HANG]);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%17s: %2d\n", "Baseband Watchdog",
+			 sc->debug.stats.reset[RESET_TYPE_BB_WATCHDOG]);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%17s: %2d\n", "Fatal HW Error",
+			 sc->debug.stats.reset[RESET_TYPE_FATAL_INT]);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%17s: %2d\n", "TX HW error",
+			 sc->debug.stats.reset[RESET_TYPE_TX_ERROR]);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%17s: %2d\n", "TX Path Hang",
+			 sc->debug.stats.reset[RESET_TYPE_TX_HANG]);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%17s: %2d\n", "PLL RX Hang",
+			 sc->debug.stats.reset[RESET_TYPE_PLL_HANG]);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%17s: %2d\n", "MCI Reset",
+			 sc->debug.stats.reset[RESET_TYPE_MCI]);
 
 	if (len > sizeof(buf))
 		len = sizeof(buf);
@@ -902,14 +904,14 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf,
 			      size_t count, loff_t *ppos)
 {
 #define PHY_ERR(s, p) \
-	len += snprintf(buf + len, size - len, "%22s : %10u\n", s, \
-			sc->debug.stats.rxstats.phy_err_stats[p]);
+	len += scnprintf(buf + len, size - len, "%22s : %10u\n", s, \
+			 sc->debug.stats.rxstats.phy_err_stats[p]);
 
 #define RXS_ERR(s, e)					    \
 	do {						    \
-		len += snprintf(buf + len, size - len,	    \
-				"%22s : %10u\n", s,	    \
-				sc->debug.stats.rxstats.e); \
+		len += scnprintf(buf + len, size - len,	    \
+				 "%22s : %10u\n", s,	    \
+				 sc->debug.stats.rxstats.e);\
 	} while (0)
 
 	struct ath_softc *sc = file->private_data;
@@ -1439,22 +1441,22 @@ static ssize_t read_file_dump_nfcal(struct file *file, char __user *user_buf,
 	if (!buf)
 		return -ENOMEM;
 
-	len += snprintf(buf + len, size - len,
-			"Channel Noise Floor : %d\n", ah->noise);
-	len += snprintf(buf + len, size - len,
-			"Chain | privNF | # Readings | NF Readings\n");
+	len += scnprintf(buf + len, size - len,
+			 "Channel Noise Floor : %d\n", ah->noise);
+	len += scnprintf(buf + len, size - len,
+			 "Chain | privNF | # Readings | NF Readings\n");
 	for (i = 0; i < NUM_NF_READINGS; i++) {
 		if (!(chainmask & (1 << i)) ||
 		    ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
 			continue;
 
 		nread = AR_PHY_CCA_FILTERWINDOW_LENGTH - h[i].invalidNFcount;
-		len += snprintf(buf + len, size - len, " %d\t %d\t %d\t\t",
-				i, h[i].privNF, nread);
+		len += scnprintf(buf + len, size - len, " %d\t %d\t %d\t\t",
+				 i, h[i].privNF, nread);
 		for (j = 0; j < nread; j++)
-			len += snprintf(buf + len, size - len,
-					" %d", h[i].nfCalBuffer[j]);
-		len += snprintf(buf + len, size - len, "\n");
+			len += scnprintf(buf + len, size - len,
+					 " %d", h[i].nfCalBuffer[j]);
+		len += scnprintf(buf + len, size - len, "\n");
 	}
 
 	if (len > size)
@@ -1543,8 +1545,8 @@ static ssize_t read_file_btcoex(struct file *file, char __user *user_buf,
 		return -ENOMEM;
 
 	if (!sc->sc_ah->common.btcoex_enabled) {
-		len = snprintf(buf, size, "%s\n",
-			       "BTCOEX is disabled");
+		len = scnprintf(buf, size, "%s\n",
+				"BTCOEX is disabled");
 		goto exit;
 	}
 
@@ -1582,43 +1584,43 @@ static ssize_t read_file_node_stat(struct file *file, char __user *user_buf,
 		return -ENOMEM;
 
 	if (!an->sta->ht_cap.ht_supported) {
-		len = snprintf(buf, size, "%s\n",
-			       "HT not supported");
+		len = scnprintf(buf, size, "%s\n",
+				"HT not supported");
 		goto exit;
 	}
 
-	len = snprintf(buf, size, "Max-AMPDU: %d\n",
-		       an->maxampdu);
-	len += snprintf(buf + len, size - len, "MPDU Density: %d\n\n",
-			an->mpdudensity);
+	len = scnprintf(buf, size, "Max-AMPDU: %d\n",
+			an->maxampdu);
+	len += scnprintf(buf + len, size - len, "MPDU Density: %d\n\n",
+			 an->mpdudensity);
 
-	len += snprintf(buf + len, size - len,
-			"%2s%7s\n", "AC", "SCHED");
+	len += scnprintf(buf + len, size - len,
+			 "%2s%7s\n", "AC", "SCHED");
 
 	for (acno = 0, ac = &an->ac[acno];
 	     acno < IEEE80211_NUM_ACS; acno++, ac++) {
 		txq = ac->txq;
 		ath_txq_lock(sc, txq);
-		len += snprintf(buf + len, size - len,
-				"%2d%7d\n",
-				acno, ac->sched);
+		len += scnprintf(buf + len, size - len,
+				 "%2d%7d\n",
+				 acno, ac->sched);
 		ath_txq_unlock(sc, txq);
 	}
 
-	len += snprintf(buf + len, size - len,
-			"\n%3s%11s%10s%10s%10s%10s%9s%6s%8s\n",
-			"TID", "SEQ_START", "SEQ_NEXT", "BAW_SIZE",
-			"BAW_HEAD", "BAW_TAIL", "BAR_IDX", "SCHED", "PAUSED");
+	len += scnprintf(buf + len, size - len,
+			 "\n%3s%11s%10s%10s%10s%10s%9s%6s%8s\n",
+			 "TID", "SEQ_START", "SEQ_NEXT", "BAW_SIZE",
+			 "BAW_HEAD", "BAW_TAIL", "BAR_IDX", "SCHED", "PAUSED");
 
 	for (tidno = 0, tid = &an->tid[tidno];
 	     tidno < IEEE80211_NUM_TIDS; tidno++, tid++) {
 		txq = tid->ac->txq;
 		ath_txq_lock(sc, txq);
-		len += snprintf(buf + len, size - len,
-				"%3d%11d%10d%10d%10d%10d%9d%6d%8d\n",
-				tid->tidno, tid->seq_start, tid->seq_next,
-				tid->baw_size, tid->baw_head, tid->baw_tail,
-				tid->bar_index, tid->sched, tid->paused);
+		len += scnprintf(buf + len, size - len,
+				 "%3d%11d%10d%10d%10d%10d%9d%6d%8d\n",
+				 tid->tidno, tid->seq_start, tid->seq_next,
+				 tid->baw_size, tid->baw_head, tid->baw_tail,
+				 tid->bar_index, tid->sched, tid->paused);
 		ath_txq_unlock(sc, txq);
 	}
 exit:
diff --git a/drivers/net/wireless/ath/ath9k/debug.h b/drivers/net/wireless/ath/ath9k/debug.h
index 6e1556fa2f3e..d6e3fa4299a4 100644
--- a/drivers/net/wireless/ath/ath9k/debug.h
+++ b/drivers/net/wireless/ath/ath9k/debug.h
@@ -193,12 +193,12 @@ struct ath_tx_stats {
 #define TXSTATS sc->debug.stats.txstats
 #define PR(str, elem)							\
 	do {								\
-		len += snprintf(buf + len, size - len,			\
-				"%s%13u%11u%10u%10u\n", str,		\
-				TXSTATS[PR_QNUM(IEEE80211_AC_BE)].elem,	\
-				TXSTATS[PR_QNUM(IEEE80211_AC_BK)].elem,	\
-				TXSTATS[PR_QNUM(IEEE80211_AC_VI)].elem,	\
-				TXSTATS[PR_QNUM(IEEE80211_AC_VO)].elem); \
+		len += scnprintf(buf + len, size - len,			\
+				 "%s%13u%11u%10u%10u\n", str,		\
+				 TXSTATS[PR_QNUM(IEEE80211_AC_BE)].elem,\
+				 TXSTATS[PR_QNUM(IEEE80211_AC_BK)].elem,\
+				 TXSTATS[PR_QNUM(IEEE80211_AC_VI)].elem,\
+				 TXSTATS[PR_QNUM(IEEE80211_AC_VO)].elem); \
 	} while(0)
 
 #define RX_STAT_INC(c) (sc->debug.stats.rxstats.c++)
diff --git a/drivers/net/wireless/ath/ath9k/dfs_debug.c b/drivers/net/wireless/ath/ath9k/dfs_debug.c
index 3c6e4138a95d..821599135d8a 100644
--- a/drivers/net/wireless/ath/ath9k/dfs_debug.c
+++ b/drivers/net/wireless/ath/ath9k/dfs_debug.c
@@ -25,11 +25,11 @@
 struct ath_dfs_pool_stats global_dfs_pool_stats = { 0 };
 
 #define ATH9K_DFS_STAT(s, p) \
-	len += snprintf(buf + len, size - len, "%28s : %10u\n", s, \
-			sc->debug.stats.dfs_stats.p);
+	len += scnprintf(buf + len, size - len, "%28s : %10u\n", s, \
+			 sc->debug.stats.dfs_stats.p);
 #define ATH9K_DFS_POOL_STAT(s, p) \
-	len += snprintf(buf + len, size - len, "%28s : %10u\n", s, \
-			global_dfs_pool_stats.p);
+	len += scnprintf(buf + len, size - len, "%28s : %10u\n", s, \
+			 global_dfs_pool_stats.p);
 
 static ssize_t read_file_dfs(struct file *file, char __user *user_buf,
 			     size_t count, loff_t *ppos)
@@ -44,12 +44,12 @@ static ssize_t read_file_dfs(struct file *file, char __user *user_buf,
 	if (buf == NULL)
 		return -ENOMEM;
 
-	len += snprintf(buf + len, size - len, "DFS support for "
-			"macVersion = 0x%x, macRev = 0x%x: %s\n",
-			hw_ver->macVersion, hw_ver->macRev,
-			(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_DFS) ?
+	len += scnprintf(buf + len, size - len, "DFS support for "
+			 "macVersion = 0x%x, macRev = 0x%x: %s\n",
+			 hw_ver->macVersion, hw_ver->macRev,
+			 (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_DFS) ?
 					"enabled" : "disabled");
-	len += snprintf(buf + len, size - len, "Pulse detector statistics:\n");
+	len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n");
 	ATH9K_DFS_STAT("pulse events reported   ", pulses_total);
 	ATH9K_DFS_STAT("invalid pulse events    ", pulses_no_dfs);
 	ATH9K_DFS_STAT("DFS pulses detected     ", pulses_detected);
@@ -59,11 +59,12 @@ static ssize_t read_file_dfs(struct file *file, char __user *user_buf,
 	ATH9K_DFS_STAT("Primary channel pulses  ", pri_phy_errors);
 	ATH9K_DFS_STAT("Secondary channel pulses", ext_phy_errors);
 	ATH9K_DFS_STAT("Dual channel pulses     ", dc_phy_errors);
-	len += snprintf(buf + len, size - len, "Radar detector statistics "
-			"(current DFS region: %d)\n", sc->dfs_detector->region);
+	len += scnprintf(buf + len, size - len, "Radar detector statistics "
+			 "(current DFS region: %d)\n",
+			 sc->dfs_detector->region);
 	ATH9K_DFS_STAT("Pulse events processed  ", pulses_processed);
 	ATH9K_DFS_STAT("Radars detected         ", radar_detected);
-	len += snprintf(buf + len, size - len, "Global Pool statistics:\n");
+	len += scnprintf(buf + len, size - len, "Global Pool statistics:\n");
 	ATH9K_DFS_POOL_STAT("Pool references         ", pool_reference);
 	ATH9K_DFS_POOL_STAT("Pulses allocated        ", pulse_allocated);
 	ATH9K_DFS_POOL_STAT("Pulses alloc error      ", pulse_alloc_error);
diff --git a/drivers/net/wireless/ath/ath9k/eeprom_4k.c b/drivers/net/wireless/ath/ath9k/eeprom_4k.c
index 9ea8e4b779c9..b4091716e9b3 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom_4k.c
+++ b/drivers/net/wireless/ath/ath9k/eeprom_4k.c
@@ -129,10 +129,10 @@ static u32 ath9k_hw_4k_dump_eeprom(struct ath_hw *ah, bool dump_base_hdr,
 	struct base_eep_header_4k *pBase = &eep->baseEepHeader;
 
 	if (!dump_base_hdr) {
-		len += snprintf(buf + len, size - len,
-				"%20s :\n", "2GHz modal Header");
+		len += scnprintf(buf + len, size - len,
+				 "%20s :\n", "2GHz modal Header");
 		len = ath9k_dump_4k_modal_eeprom(buf, len, size,
-						  &eep->modalHeader);
+						 &eep->modalHeader);
 		goto out;
 	}
 
@@ -160,8 +160,8 @@ static u32 ath9k_hw_4k_dump_eeprom(struct ath_hw *ah, bool dump_base_hdr,
 	PR_EEP("Cal Bin Build", (pBase->binBuildNumber >> 8) & 0xFF);
 	PR_EEP("TX Gain type", pBase->txGainType);
 
-	len += snprintf(buf + len, size - len, "%20s : %pM\n", "MacAddress",
-			pBase->macAddr);
+	len += scnprintf(buf + len, size - len, "%20s : %pM\n", "MacAddress",
+			 pBase->macAddr);
 
 out:
 	if (len > size)
diff --git a/drivers/net/wireless/ath/ath9k/eeprom_9287.c b/drivers/net/wireless/ath/ath9k/eeprom_9287.c
index 3ae1f3df0637..e1d0c217c104 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom_9287.c
+++ b/drivers/net/wireless/ath/ath9k/eeprom_9287.c
@@ -125,8 +125,8 @@ static u32 ath9k_hw_ar9287_dump_eeprom(struct ath_hw *ah, bool dump_base_hdr,
 	struct base_eep_ar9287_header *pBase = &eep->baseEepHeader;
 
 	if (!dump_base_hdr) {
-		len += snprintf(buf + len, size - len,
-				"%20s :\n", "2GHz modal Header");
+		len += scnprintf(buf + len, size - len,
+				 "%20s :\n", "2GHz modal Header");
 		len = ar9287_dump_modal_eeprom(buf, len, size,
 						&eep->modalHeader);
 		goto out;
@@ -157,8 +157,8 @@ static u32 ath9k_hw_ar9287_dump_eeprom(struct ath_hw *ah, bool dump_base_hdr,
 	PR_EEP("Power Table Offset", pBase->pwrTableOffset);
 	PR_EEP("OpenLoop Power Ctrl", pBase->openLoopPwrCntl);
 
-	len += snprintf(buf + len, size - len, "%20s : %pM\n", "MacAddress",
-			pBase->macAddr);
+	len += scnprintf(buf + len, size - len, "%20s : %pM\n", "MacAddress",
+			 pBase->macAddr);
 
 out:
 	if (len > size)
diff --git a/drivers/net/wireless/ath/ath9k/eeprom_def.c b/drivers/net/wireless/ath/ath9k/eeprom_def.c
index 1c25368b3836..39107e31e79a 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom_def.c
+++ b/drivers/net/wireless/ath/ath9k/eeprom_def.c
@@ -205,12 +205,12 @@ static u32 ath9k_hw_def_dump_eeprom(struct ath_hw *ah, bool dump_base_hdr,
 	struct base_eep_header *pBase = &eep->baseEepHeader;
 
 	if (!dump_base_hdr) {
-		len += snprintf(buf + len, size - len,
-				"%20s :\n", "2GHz modal Header");
+		len += scnprintf(buf + len, size - len,
+				 "%20s :\n", "2GHz modal Header");
 		len = ath9k_def_dump_modal_eeprom(buf, len, size,
 						   &eep->modalHeader[0]);
-		len += snprintf(buf + len, size - len,
-				"%20s :\n", "5GHz modal Header");
+		len += scnprintf(buf + len, size - len,
+				 "%20s :\n", "5GHz modal Header");
 		len = ath9k_def_dump_modal_eeprom(buf, len, size,
 						   &eep->modalHeader[1]);
 		goto out;
@@ -240,8 +240,8 @@ static u32 ath9k_hw_def_dump_eeprom(struct ath_hw *ah, bool dump_base_hdr,
 	PR_EEP("Cal Bin Build", (pBase->binBuildNumber >> 8) & 0xFF);
 	PR_EEP("OpenLoop Power Ctrl", pBase->openLoopPwrCntl);
 
-	len += snprintf(buf + len, size - len, "%20s : %pM\n", "MacAddress",
-			pBase->macAddr);
+	len += scnprintf(buf + len, size - len, "%20s : %pM\n", "MacAddress",
+			 pBase->macAddr);
 
 out:
 	if (len > size)
diff --git a/drivers/net/wireless/ath/ath9k/gpio.c b/drivers/net/wireless/ath/ath9k/gpio.c
index 4b412aaf4f36..c34f21241da9 100644
--- a/drivers/net/wireless/ath/ath9k/gpio.c
+++ b/drivers/net/wireless/ath/ath9k/gpio.c
@@ -522,22 +522,22 @@ static int ath9k_dump_mci_btcoex(struct ath_softc *sc, u8 *buf, u32 size)
 	ATH_DUMP_BTCOEX("Concurrent Tx", btcoex_hw->mci.concur_tx);
 	ATH_DUMP_BTCOEX("Concurrent RSSI cnt", btcoex->rssi_count);
 
-	len += snprintf(buf + len, size - len, "BT Weights: ");
+	len += scnprintf(buf + len, size - len, "BT Weights: ");
 	for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++)
-		len += snprintf(buf + len, size - len, "%08x ",
-				btcoex_hw->bt_weight[i]);
-	len += snprintf(buf + len, size - len, "\n");
-	len += snprintf(buf + len, size - len, "WLAN Weights: ");
+		len += scnprintf(buf + len, size - len, "%08x ",
+				 btcoex_hw->bt_weight[i]);
+	len += scnprintf(buf + len, size - len, "\n");
+	len += scnprintf(buf + len, size - len, "WLAN Weights: ");
 	for (i = 0; i < AR9300_NUM_BT_WEIGHTS; i++)
-		len += snprintf(buf + len, size - len, "%08x ",
-				btcoex_hw->wlan_weight[i]);
-	len += snprintf(buf + len, size - len, "\n");
-	len += snprintf(buf + len, size - len, "Tx Priorities: ");
+		len += scnprintf(buf + len, size - len, "%08x ",
+				 btcoex_hw->wlan_weight[i]);
+	len += scnprintf(buf + len, size - len, "\n");
+	len += scnprintf(buf + len, size - len, "Tx Priorities: ");
 	for (i = 0; i < ATH_BTCOEX_STOMP_MAX; i++)
-		len += snprintf(buf + len, size - len, "%08x ",
+		len += scnprintf(buf + len, size - len, "%08x ",
 				btcoex_hw->tx_prio[i]);
 
-	len += snprintf(buf + len, size - len, "\n");
+	len += scnprintf(buf + len, size - len, "\n");
 
 	return len;
 }
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
index c1b45e2f8481..fb071ee4fcfb 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_debug.c
@@ -37,29 +37,29 @@ static ssize_t read_file_tgt_int_stats(struct file *file, char __user *user_buf,
 
 	ath9k_htc_ps_restore(priv);
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "RX",
-			be32_to_cpu(cmd_rsp.rx));
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "RX",
+			 be32_to_cpu(cmd_rsp.rx));
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "RXORN",
-			be32_to_cpu(cmd_rsp.rxorn));
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "RXORN",
+			 be32_to_cpu(cmd_rsp.rxorn));
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "RXEOL",
-			be32_to_cpu(cmd_rsp.rxeol));
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "RXEOL",
+			 be32_to_cpu(cmd_rsp.rxeol));
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "TXURN",
-			be32_to_cpu(cmd_rsp.txurn));
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "TXURN",
+			 be32_to_cpu(cmd_rsp.txurn));
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "TXTO",
-			be32_to_cpu(cmd_rsp.txto));
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "TXTO",
+			 be32_to_cpu(cmd_rsp.txto));
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "CST",
-			be32_to_cpu(cmd_rsp.cst));
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "CST",
+			 be32_to_cpu(cmd_rsp.cst));
 
 	if (len > sizeof(buf))
 		len = sizeof(buf);
@@ -95,41 +95,41 @@ static ssize_t read_file_tgt_tx_stats(struct file *file, char __user *user_buf,
 
 	ath9k_htc_ps_restore(priv);
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "Xretries",
-			be32_to_cpu(cmd_rsp.xretries));
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "Xretries",
+			 be32_to_cpu(cmd_rsp.xretries));
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "FifoErr",
-			be32_to_cpu(cmd_rsp.fifoerr));
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "FifoErr",
+			 be32_to_cpu(cmd_rsp.fifoerr));
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "Filtered",
-			be32_to_cpu(cmd_rsp.filtered));
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "Filtered",
+			 be32_to_cpu(cmd_rsp.filtered));
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "TimerExp",
-			be32_to_cpu(cmd_rsp.timer_exp));
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "TimerExp",
+			 be32_to_cpu(cmd_rsp.timer_exp));
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "ShortRetries",
-			be32_to_cpu(cmd_rsp.shortretries));
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "ShortRetries",
+			 be32_to_cpu(cmd_rsp.shortretries));
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "LongRetries",
-			be32_to_cpu(cmd_rsp.longretries));
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "LongRetries",
+			 be32_to_cpu(cmd_rsp.longretries));
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "QueueNull",
-			be32_to_cpu(cmd_rsp.qnull));
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "QueueNull",
+			 be32_to_cpu(cmd_rsp.qnull));
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "EncapFail",
-			be32_to_cpu(cmd_rsp.encap_fail));
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "EncapFail",
+			 be32_to_cpu(cmd_rsp.encap_fail));
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "NoBuf",
-			be32_to_cpu(cmd_rsp.nobuf));
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "NoBuf",
+			 be32_to_cpu(cmd_rsp.nobuf));
 
 	if (len > sizeof(buf))
 		len = sizeof(buf);
@@ -165,17 +165,17 @@ static ssize_t read_file_tgt_rx_stats(struct file *file, char __user *user_buf,
 
 	ath9k_htc_ps_restore(priv);
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "NoBuf",
-			be32_to_cpu(cmd_rsp.nobuf));
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "NoBuf",
+			 be32_to_cpu(cmd_rsp.nobuf));
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "HostSend",
-			be32_to_cpu(cmd_rsp.host_send));
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "HostSend",
+			 be32_to_cpu(cmd_rsp.host_send));
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "HostDone",
-			be32_to_cpu(cmd_rsp.host_done));
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "HostDone",
+			 be32_to_cpu(cmd_rsp.host_done));
 
 	if (len > sizeof(buf))
 		len = sizeof(buf);
@@ -197,37 +197,37 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
 	char buf[512];
 	unsigned int len = 0;
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "Buffers queued",
-			priv->debug.tx_stats.buf_queued);
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "Buffers completed",
-			priv->debug.tx_stats.buf_completed);
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "SKBs queued",
-			priv->debug.tx_stats.skb_queued);
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "SKBs success",
-			priv->debug.tx_stats.skb_success);
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "SKBs failed",
-			priv->debug.tx_stats.skb_failed);
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "CAB queued",
-			priv->debug.tx_stats.cab_queued);
-
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "BE queued",
-			priv->debug.tx_stats.queue_stats[IEEE80211_AC_BE]);
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "BK queued",
-			priv->debug.tx_stats.queue_stats[IEEE80211_AC_BK]);
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "VI queued",
-			priv->debug.tx_stats.queue_stats[IEEE80211_AC_VI]);
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"%20s : %10u\n", "VO queued",
-			priv->debug.tx_stats.queue_stats[IEEE80211_AC_VO]);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "Buffers queued",
+			 priv->debug.tx_stats.buf_queued);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "Buffers completed",
+			 priv->debug.tx_stats.buf_completed);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "SKBs queued",
+			 priv->debug.tx_stats.skb_queued);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "SKBs success",
+			 priv->debug.tx_stats.skb_success);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "SKBs failed",
+			 priv->debug.tx_stats.skb_failed);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "CAB queued",
+			 priv->debug.tx_stats.cab_queued);
+
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "BE queued",
+			 priv->debug.tx_stats.queue_stats[IEEE80211_AC_BE]);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "BK queued",
+			 priv->debug.tx_stats.queue_stats[IEEE80211_AC_BK]);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "VI queued",
+			 priv->debug.tx_stats.queue_stats[IEEE80211_AC_VI]);
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "%20s : %10u\n", "VO queued",
+			 priv->debug.tx_stats.queue_stats[IEEE80211_AC_VO]);
 
 	if (len > sizeof(buf))
 		len = sizeof(buf);
@@ -273,8 +273,8 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf,
 			      size_t count, loff_t *ppos)
 {
 #define PHY_ERR(s, p)							\
-	len += snprintf(buf + len, size - len, "%20s : %10u\n", s,	\
-			priv->debug.rx_stats.err_phy_stats[p]);
+	len += scnprintf(buf + len, size - len, "%20s : %10u\n", s,	\
+			 priv->debug.rx_stats.err_phy_stats[p]);
 
 	struct ath9k_htc_priv *priv = file->private_data;
 	char *buf;
@@ -285,37 +285,37 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf,
 	if (buf == NULL)
 		return -ENOMEM;
 
-	len += snprintf(buf + len, size - len,
-			"%20s : %10u\n", "SKBs allocated",
-			priv->debug.rx_stats.skb_allocated);
-	len += snprintf(buf + len, size - len,
-			"%20s : %10u\n", "SKBs completed",
-			priv->debug.rx_stats.skb_completed);
-	len += snprintf(buf + len, size - len,
-			"%20s : %10u\n", "SKBs Dropped",
-			priv->debug.rx_stats.skb_dropped);
-
-	len += snprintf(buf + len, size - len,
-			"%20s : %10u\n", "CRC ERR",
-			priv->debug.rx_stats.err_crc);
-	len += snprintf(buf + len, size - len,
-			"%20s : %10u\n", "DECRYPT CRC ERR",
-			priv->debug.rx_stats.err_decrypt_crc);
-	len += snprintf(buf + len, size - len,
-			"%20s : %10u\n", "MIC ERR",
-			priv->debug.rx_stats.err_mic);
-	len += snprintf(buf + len, size - len,
-			"%20s : %10u\n", "PRE-DELIM CRC ERR",
-			priv->debug.rx_stats.err_pre_delim);
-	len += snprintf(buf + len, size - len,
-			"%20s : %10u\n", "POST-DELIM CRC ERR",
-			priv->debug.rx_stats.err_post_delim);
-	len += snprintf(buf + len, size - len,
-			"%20s : %10u\n", "DECRYPT BUSY ERR",
-			priv->debug.rx_stats.err_decrypt_busy);
-	len += snprintf(buf + len, size - len,
-			"%20s : %10u\n", "TOTAL PHY ERR",
-			priv->debug.rx_stats.err_phy);
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10u\n", "SKBs allocated",
+			 priv->debug.rx_stats.skb_allocated);
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10u\n", "SKBs completed",
+			 priv->debug.rx_stats.skb_completed);
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10u\n", "SKBs Dropped",
+			 priv->debug.rx_stats.skb_dropped);
+
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10u\n", "CRC ERR",
+			 priv->debug.rx_stats.err_crc);
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10u\n", "DECRYPT CRC ERR",
+			 priv->debug.rx_stats.err_decrypt_crc);
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10u\n", "MIC ERR",
+			 priv->debug.rx_stats.err_mic);
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10u\n", "PRE-DELIM CRC ERR",
+			 priv->debug.rx_stats.err_pre_delim);
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10u\n", "POST-DELIM CRC ERR",
+			 priv->debug.rx_stats.err_post_delim);
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10u\n", "DECRYPT BUSY ERR",
+			 priv->debug.rx_stats.err_decrypt_busy);
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10u\n", "TOTAL PHY ERR",
+			 priv->debug.rx_stats.err_phy);
 
 
 	PHY_ERR("UNDERRUN", ATH9K_PHYERR_UNDERRUN);
@@ -372,16 +372,16 @@ static ssize_t read_file_slot(struct file *file, char __user *user_buf,
 
 	spin_lock_bh(&priv->tx.tx_lock);
 
-	len += snprintf(buf + len, sizeof(buf) - len, "TX slot bitmap : ");
+	len += scnprintf(buf + len, sizeof(buf) - len, "TX slot bitmap : ");
 
 	len += bitmap_scnprintf(buf + len, sizeof(buf) - len,
 			       priv->tx.tx_slot, MAX_TX_BUF_NUM);
 
-	len += snprintf(buf + len, sizeof(buf) - len, "\n");
+	len += scnprintf(buf + len, sizeof(buf) - len, "\n");
 
-	len += snprintf(buf + len, sizeof(buf) - len,
-			"Used slots     : %d\n",
-			bitmap_weight(priv->tx.tx_slot, MAX_TX_BUF_NUM));
+	len += scnprintf(buf + len, sizeof(buf) - len,
+			 "Used slots     : %d\n",
+			 bitmap_weight(priv->tx.tx_slot, MAX_TX_BUF_NUM));
 
 	spin_unlock_bh(&priv->tx.tx_lock);
 
@@ -405,30 +405,30 @@ static ssize_t read_file_queue(struct file *file, char __user *user_buf,
 	char buf[512];
 	unsigned int len = 0;
 
-	len += snprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
-			"Mgmt endpoint", skb_queue_len(&priv->tx.mgmt_ep_queue));
+	len += scnprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
+			 "Mgmt endpoint", skb_queue_len(&priv->tx.mgmt_ep_queue));
 
-	len += snprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
-			"Cab endpoint", skb_queue_len(&priv->tx.cab_ep_queue));
+	len += scnprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
+			 "Cab endpoint", skb_queue_len(&priv->tx.cab_ep_queue));
 
-	len += snprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
-			"Data BE endpoint", skb_queue_len(&priv->tx.data_be_queue));
+	len += scnprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
+			 "Data BE endpoint", skb_queue_len(&priv->tx.data_be_queue));
 
-	len += snprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
-			"Data BK endpoint", skb_queue_len(&priv->tx.data_bk_queue));
+	len += scnprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
+			 "Data BK endpoint", skb_queue_len(&priv->tx.data_bk_queue));
 
-	len += snprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
-			"Data VI endpoint", skb_queue_len(&priv->tx.data_vi_queue));
+	len += scnprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
+			 "Data VI endpoint", skb_queue_len(&priv->tx.data_vi_queue));
 
-	len += snprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
-			"Data VO endpoint", skb_queue_len(&priv->tx.data_vo_queue));
+	len += scnprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
+			 "Data VO endpoint", skb_queue_len(&priv->tx.data_vo_queue));
 
-	len += snprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
-			"Failed queue", skb_queue_len(&priv->tx.tx_failed));
+	len += scnprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
+			 "Failed queue", skb_queue_len(&priv->tx.tx_failed));
 
 	spin_lock_bh(&priv->tx.tx_lock);
-	len += snprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
-			"Queued count", priv->tx.queued_cnt);
+	len += scnprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
+			 "Queued count", priv->tx.queued_cnt);
 	spin_unlock_bh(&priv->tx.tx_lock);
 
 	if (len > sizeof(buf))
@@ -507,70 +507,70 @@ static ssize_t read_file_base_eeprom(struct file *file, char __user *user_buf,
 	if (buf == NULL)
 		return -ENOMEM;
 
-	len += snprintf(buf + len, size - len,
-			"%20s : %10d\n", "Major Version",
-			pBase->version >> 12);
-	len += snprintf(buf + len, size - len,
-			"%20s : %10d\n", "Minor Version",
-			pBase->version & 0xFFF);
-	len += snprintf(buf + len, size - len,
-			"%20s : %10d\n", "Checksum",
-			pBase->checksum);
-	len += snprintf(buf + len, size - len,
-			"%20s : %10d\n", "Length",
-			pBase->length);
-	len += snprintf(buf + len, size - len,
-			"%20s : %10d\n", "RegDomain1",
-			pBase->regDmn[0]);
-	len += snprintf(buf + len, size - len,
-			"%20s : %10d\n", "RegDomain2",
-			pBase->regDmn[1]);
-	len += snprintf(buf + len, size - len,
-			"%20s : %10d\n",
-			"TX Mask", pBase->txMask);
-	len += snprintf(buf + len, size - len,
-			"%20s : %10d\n",
-			"RX Mask", pBase->rxMask);
-	len += snprintf(buf + len, size - len,
-			"%20s : %10d\n",
-			"Allow 5GHz",
-			!!(pBase->opCapFlags & AR5416_OPFLAGS_11A));
-	len += snprintf(buf + len, size - len,
-			"%20s : %10d\n",
-			"Allow 2GHz",
-			!!(pBase->opCapFlags & AR5416_OPFLAGS_11G));
-	len += snprintf(buf + len, size - len,
-			"%20s : %10d\n",
-			"Disable 2GHz HT20",
-			!!(pBase->opCapFlags & AR5416_OPFLAGS_N_2G_HT20));
-	len += snprintf(buf + len, size - len,
-			"%20s : %10d\n",
-			"Disable 2GHz HT40",
-			!!(pBase->opCapFlags & AR5416_OPFLAGS_N_2G_HT40));
-	len += snprintf(buf + len, size - len,
-			"%20s : %10d\n",
-			"Disable 5Ghz HT20",
-			!!(pBase->opCapFlags & AR5416_OPFLAGS_N_5G_HT20));
-	len += snprintf(buf + len, size - len,
-			"%20s : %10d\n",
-			"Disable 5Ghz HT40",
-			!!(pBase->opCapFlags & AR5416_OPFLAGS_N_5G_HT40));
-	len += snprintf(buf + len, size - len,
-			"%20s : %10d\n",
-			"Big Endian",
-			!!(pBase->eepMisc & 0x01));
-	len += snprintf(buf + len, size - len,
-			"%20s : %10d\n",
-			"Cal Bin Major Ver",
-			(pBase->binBuildNumber >> 24) & 0xFF);
-	len += snprintf(buf + len, size - len,
-			"%20s : %10d\n",
-			"Cal Bin Minor Ver",
-			(pBase->binBuildNumber >> 16) & 0xFF);
-	len += snprintf(buf + len, size - len,
-			"%20s : %10d\n",
-			"Cal Bin Build",
-			(pBase->binBuildNumber >> 8) & 0xFF);
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10d\n", "Major Version",
+			 pBase->version >> 12);
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10d\n", "Minor Version",
+			 pBase->version & 0xFFF);
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10d\n", "Checksum",
+			 pBase->checksum);
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10d\n", "Length",
+			 pBase->length);
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10d\n", "RegDomain1",
+			 pBase->regDmn[0]);
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10d\n", "RegDomain2",
+			 pBase->regDmn[1]);
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10d\n",
+			 "TX Mask", pBase->txMask);
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10d\n",
+			 "RX Mask", pBase->rxMask);
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10d\n",
+			 "Allow 5GHz",
+			 !!(pBase->opCapFlags & AR5416_OPFLAGS_11A));
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10d\n",
+			 "Allow 2GHz",
+			 !!(pBase->opCapFlags & AR5416_OPFLAGS_11G));
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10d\n",
+			 "Disable 2GHz HT20",
+			 !!(pBase->opCapFlags & AR5416_OPFLAGS_N_2G_HT20));
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10d\n",
+			 "Disable 2GHz HT40",
+			 !!(pBase->opCapFlags & AR5416_OPFLAGS_N_2G_HT40));
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10d\n",
+			 "Disable 5Ghz HT20",
+			 !!(pBase->opCapFlags & AR5416_OPFLAGS_N_5G_HT20));
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10d\n",
+			 "Disable 5Ghz HT40",
+			 !!(pBase->opCapFlags & AR5416_OPFLAGS_N_5G_HT40));
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10d\n",
+			 "Big Endian",
+			 !!(pBase->eepMisc & 0x01));
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10d\n",
+			 "Cal Bin Major Ver",
+			 (pBase->binBuildNumber >> 24) & 0xFF);
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10d\n",
+			 "Cal Bin Minor Ver",
+			 (pBase->binBuildNumber >> 16) & 0xFF);
+	len += scnprintf(buf + len, size - len,
+			 "%20s : %10d\n",
+			 "Cal Bin Build",
+			 (pBase->binBuildNumber >> 8) & 0xFF);
 
 	/*
 	 * UB91 specific data.
@@ -579,10 +579,10 @@ static ssize_t read_file_base_eeprom(struct file *file, char __user *user_buf,
 		struct base_eep_header_4k *pBase4k =
 			&priv->ah->eeprom.map4k.baseEepHeader;
 
-		len += snprintf(buf + len, size - len,
-				"%20s : %10d\n",
-				"TX Gain type",
-				pBase4k->txGainType);
+		len += scnprintf(buf + len, size - len,
+				 "%20s : %10d\n",
+				 "TX Gain type",
+				 pBase4k->txGainType);
 	}
 
 	/*
@@ -592,19 +592,19 @@ static ssize_t read_file_base_eeprom(struct file *file, char __user *user_buf,
 		struct base_eep_ar9287_header *pBase9287 =
 			&priv->ah->eeprom.map9287.baseEepHeader;
 
-		len += snprintf(buf + len, size - len,
-				"%20s : %10ddB\n",
-				"Power Table Offset",
-				pBase9287->pwrTableOffset);
+		len += scnprintf(buf + len, size - len,
+				 "%20s : %10ddB\n",
+				 "Power Table Offset",
+				 pBase9287->pwrTableOffset);
 
-		len += snprintf(buf + len, size - len,
-				"%20s : %10d\n",
-				"OpenLoop Power Ctrl",
-				pBase9287->openLoopPwrCntl);
+		len += scnprintf(buf + len, size - len,
+				 "%20s : %10d\n",
+				 "OpenLoop Power Ctrl",
+				 pBase9287->openLoopPwrCntl);
 	}
 
-	len += snprintf(buf + len, size - len, "%20s : %pM\n", "MacAddress",
-			pBase->macAddr);
+	len += scnprintf(buf + len, size - len, "%20s : %pM\n", "MacAddress",
+			 pBase->macAddr);
 	if (len > size)
 		len = size;
 
@@ -627,8 +627,8 @@ static ssize_t read_4k_modal_eeprom(struct file *file,
 {
 #define PR_EEP(_s, _val)						\
 	do {								\
-		len += snprintf(buf + len, size - len, "%20s : %10d\n",	\
-				_s, (_val));				\
+		len += scnprintf(buf + len, size - len, "%20s : %10d\n",\
+				 _s, (_val));				\
 	} while (0)
 
 	struct ath9k_htc_priv *priv = file->private_data;
@@ -708,12 +708,12 @@ static ssize_t read_def_modal_eeprom(struct file *file,
 	do {								\
 		if (pBase->opCapFlags & AR5416_OPFLAGS_11G) {		\
 			pModal = &priv->ah->eeprom.def.modalHeader[1];	\
-			len += snprintf(buf + len, size - len, "%20s : %8d%7s", \
-					_s, (_val), "|");		\
+			len += scnprintf(buf + len, size - len, "%20s : %8d%7s", \
+					 _s, (_val), "|");		\
 		}							\
 		if (pBase->opCapFlags & AR5416_OPFLAGS_11A) {		\
 			pModal = &priv->ah->eeprom.def.modalHeader[0];	\
-			len += snprintf(buf + len, size - len, "%9d\n", \
+			len += scnprintf(buf + len, size - len, "%9d\n",\
 					(_val));			\
 		}							\
 	} while (0)
@@ -729,10 +729,10 @@ static ssize_t read_def_modal_eeprom(struct file *file,
 	if (buf == NULL)
 		return -ENOMEM;
 
-	len += snprintf(buf + len, size - len,
-			"%31s %15s\n", "2G", "5G");
-	len += snprintf(buf + len, size - len,
-			"%32s %16s\n", "====", "====\n");
+	len += scnprintf(buf + len, size - len,
+			 "%31s %15s\n", "2G", "5G");
+	len += scnprintf(buf + len, size - len,
+			 "%32s %16s\n", "====", "====\n");
 
 	PR_EEP("Chain0 Ant. Control", pModal->antCtrlChain[0]);
 	PR_EEP("Chain1 Ant. Control", pModal->antCtrlChain[1]);
@@ -814,8 +814,8 @@ static ssize_t read_9287_modal_eeprom(struct file *file,
 {
 #define PR_EEP(_s, _val)						\
 	do {								\
-		len += snprintf(buf + len, size - len, "%20s : %10d\n",	\
-				_s, (_val));				\
+		len += scnprintf(buf + len, size - len, "%20s : %10d\n",\
+				 _s, (_val));				\
 	} while (0)
 
 	struct ath9k_htc_priv *priv = file->private_data;
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 260e0c65f574..525ac984eafd 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -3252,19 +3252,19 @@ void ath9k_hw_name(struct ath_hw *ah, char *hw_name, size_t len)
 
 	/* chipsets >= AR9280 are single-chip */
 	if (AR_SREV_9280_20_OR_LATER(ah)) {
-		used = snprintf(hw_name, len,
-			       "Atheros AR%s Rev:%x",
-			       ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
-			       ah->hw_version.macRev);
+		used = scnprintf(hw_name, len,
+				 "Atheros AR%s Rev:%x",
+				 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
+				 ah->hw_version.macRev);
 	}
 	else {
-		used = snprintf(hw_name, len,
-			       "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
-			       ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
-			       ah->hw_version.macRev,
-			       ath9k_hw_rf_name((ah->hw_version.analog5GhzRev &
-						AR_RADIO_SREV_MAJOR)),
-			       ah->hw_version.phyRev);
+		used = scnprintf(hw_name, len,
+				 "Atheros AR%s MAC/BB Rev:%x AR%s RF Rev:%x",
+				 ath9k_hw_mac_bb_name(ah->hw_version.macVersion),
+				 ah->hw_version.macRev,
+				 ath9k_hw_rf_name((ah->hw_version.analog5GhzRev
+						  & AR_RADIO_SREV_MAJOR)),
+				 ah->hw_version.phyRev);
 	}
 
 	hw_name[used] = '\0';
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 88f67c39f94c..5e564c788813 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -98,8 +98,8 @@
 
 #define PR_EEP(_s, _val)						\
 	do {								\
-		len += snprintf(buf + len, size - len, "%20s : %10d\n",	\
-				_s, (_val));				\
+		len += scnprintf(buf + len, size - len, "%20s : %10d\n",\
+				 _s, (_val));				\
 	} while (0)
 
 #define SM(_v, _f)  (((_v) << _f##_S) & _f)
diff --git a/drivers/net/wireless/ath/ath9k/rc.c b/drivers/net/wireless/ath/ath9k/rc.c
index d3d7c51fa6c8..d829bb62a3fc 100644
--- a/drivers/net/wireless/ath/ath9k/rc.c
+++ b/drivers/net/wireless/ath/ath9k/rc.c
@@ -1387,31 +1387,31 @@ static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
 		int used_mcs = 0, used_htmode = 0;
 
 		if (WLAN_RC_PHY_HT(rc->rate_table->info[i].phy)) {
-			used_mcs = snprintf(mcs, 5, "%d",
-				rc->rate_table->info[i].ratecode);
+			used_mcs = scnprintf(mcs, 5, "%d",
+					     rc->rate_table->info[i].ratecode);
 
 			if (WLAN_RC_PHY_40(rc->rate_table->info[i].phy))
-				used_htmode = snprintf(htmode, 5, "HT40");
+				used_htmode = scnprintf(htmode, 5, "HT40");
 			else if (WLAN_RC_PHY_20(rc->rate_table->info[i].phy))
-				used_htmode = snprintf(htmode, 5, "HT20");
+				used_htmode = scnprintf(htmode, 5, "HT20");
 			else
-				used_htmode = snprintf(htmode, 5, "????");
+				used_htmode = scnprintf(htmode, 5, "????");
 		}
 
 		mcs[used_mcs] = '\0';
 		htmode[used_htmode] = '\0';
 
-		len += snprintf(buf + len, max - len,
-			"%6s %6s %3u.%d: "
-			"%10u %10u %10u %10u\n",
-			htmode,
-			mcs,
-			ratekbps / 1000,
-			(ratekbps % 1000) / 100,
-			stats->success,
-			stats->retries,
-			stats->xretries,
-			stats->per);
+		len += scnprintf(buf + len, max - len,
+				 "%6s %6s %3u.%d: "
+				 "%10u %10u %10u %10u\n",
+				 htmode,
+				 mcs,
+				 ratekbps / 1000,
+				 (ratekbps % 1000) / 100,
+				 stats->success,
+				 stats->retries,
+				 stats->xretries,
+				 stats->per);
 	}
 
 	if (len > max)
-- 
cgit 


From b2a312046b6066cbf3bfb9154c7390eb0154fe03 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 14:26:51 +0900
Subject: mwifiex: Remove casting the return value which is a void pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/mwifiex/pcie.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/mwifiex/pcie.c b/drivers/net/wireless/mwifiex/pcie.c
index 52da8ee7599a..33fa9432b241 100644
--- a/drivers/net/wireless/mwifiex/pcie.c
+++ b/drivers/net/wireless/mwifiex/pcie.c
@@ -93,7 +93,7 @@ static int mwifiex_pcie_suspend(struct device *dev)
 	struct pci_dev *pdev = to_pci_dev(dev);
 
 	if (pdev) {
-		card = (struct pcie_service_card *) pci_get_drvdata(pdev);
+		card = pci_get_drvdata(pdev);
 		if (!card || !card->adapter) {
 			pr_err("Card or adapter structure is not valid\n");
 			return 0;
@@ -128,7 +128,7 @@ static int mwifiex_pcie_resume(struct device *dev)
 	struct pci_dev *pdev = to_pci_dev(dev);
 
 	if (pdev) {
-		card = (struct pcie_service_card *) pci_get_drvdata(pdev);
+		card = pci_get_drvdata(pdev);
 		if (!card || !card->adapter) {
 			pr_err("Card or adapter structure is not valid\n");
 			return 0;
@@ -2037,7 +2037,7 @@ static irqreturn_t mwifiex_pcie_interrupt(int irq, void *context)
 		goto exit;
 	}
 
-	card = (struct pcie_service_card *) pci_get_drvdata(pdev);
+	card = pci_get_drvdata(pdev);
 	if (!card || !card->adapter) {
 		pr_debug("info: %s: card=%p adapter=%p\n", __func__, card,
 			 card ? card->adapter : NULL);
-- 
cgit 


From 61edc7fad65c80e9f8ddf522339c1d2d91c6328d Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <sgruszka@redhat.com>
Date: Mon, 9 Sep 2013 12:37:38 +0200
Subject: rt2800: comment enable radio initialization sequence

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800lib.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 88ce656f96cd..470a7aa11f17 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -6653,17 +6653,20 @@ int rt2800_enable_radio(struct rt2x00_dev *rt2x00dev)
 	u16 word;
 
 	/*
-	 * Initialize all registers.
+	 * Initialize MAC registers.
 	 */
 	if (unlikely(rt2800_wait_wpdma_ready(rt2x00dev) ||
 		     rt2800_init_registers(rt2x00dev)))
 		return -EIO;
 
+	/*
+	 * Wait BBP/RF to wake up.
+	 */
 	if (unlikely(rt2800_wait_bbp_rf_ready(rt2x00dev)))
 		return -EIO;
 
 	/*
-	 * Send signal to firmware during boot time.
+	 * Send signal during boot time to initialize firmware.
 	 */
 	rt2800_register_write(rt2x00dev, H2M_BBP_AGENT, 0);
 	rt2800_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0);
@@ -6672,9 +6675,15 @@ int rt2800_enable_radio(struct rt2x00_dev *rt2x00dev)
 	rt2800_mcu_request(rt2x00dev, MCU_BOOT_SIGNAL, 0, 0, 0);
 	msleep(1);
 
+	/*
+	 * Make sure BBP is up and running.
+	 */
 	if (unlikely(rt2800_wait_bbp_ready(rt2x00dev)))
 		return -EIO;
 
+	/*
+	 * Initialize BBP/RF registers.
+	 */
 	rt2800_init_bbp(rt2x00dev);
 	rt2800_init_rfcsr(rt2x00dev);
 
-- 
cgit 


From 38e05a0e5267ff3a433f3b83ec1c18a93722e9d5 Mon Sep 17 00:00:00 2001
From: Albert Pool <albertpool@solcon.nl>
Date: Mon, 9 Sep 2013 20:36:30 +0200
Subject: ar5523: Add USB ID of D-Link WUA-2340 rev A1

Signed-off-by: Albert Pool <albertpool@solcon.nl>
Reported-by: Michael Landrum <landrummd@gmail.com>
Acked-by: Pontus Fuchs <pontus.fuchs@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ar5523/ar5523.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/ath/ar5523/ar5523.c b/drivers/net/wireless/ath/ar5523/ar5523.c
index 17d7fece35d2..280fc3d53a36 100644
--- a/drivers/net/wireless/ath/ar5523/ar5523.c
+++ b/drivers/net/wireless/ath/ar5523/ar5523.c
@@ -1762,6 +1762,7 @@ static struct usb_device_id ar5523_id_table[] = {
 	AR5523_DEVICE_UX(0x2001, 0x3a00),	/* Dlink / DWLAG132 */
 	AR5523_DEVICE_UG(0x2001, 0x3a02),	/* Dlink / DWLG132 */
 	AR5523_DEVICE_UX(0x2001, 0x3a04),	/* Dlink / DWLAG122 */
+	AR5523_DEVICE_UG(0x07d1, 0x3a07),	/* D-Link / WUA-2340 rev A1 */
 	AR5523_DEVICE_UG(0x1690, 0x0712),	/* Gigaset / AR5523 */
 	AR5523_DEVICE_UG(0x1690, 0x0710),	/* Gigaset / SMCWUSBTG */
 	AR5523_DEVICE_UG(0x129b, 0x160c),	/* Gigaset / USB stick 108
-- 
cgit 


From 5bb4101bc93a23dfcac508994378e975702e1abd Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 10 Sep 2013 11:50:36 +0530
Subject: net: ath9k: Use NULL instead of false

The function returns a pointer. Hence return NULL instead of false.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/dfs_pri_detector.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c b/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c
index 5ba4b6fe37c0..c718fc379a10 100644
--- a/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c
+++ b/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c
@@ -392,7 +392,7 @@ static struct pri_sequence *pri_detector_add_pulse(struct pri_detector *de,
 
 	if (!pseq_handler_create_sequences(de, ts, max_updated_seq)) {
 		pri_detector_reset(de, ts);
-		return false;
+		return NULL;
 	}
 
 	ps = pseq_handler_check_detection(de);
-- 
cgit 


From b920e375be517524423826a58854b2d76017a2e3 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 17:51:47 +0900
Subject: wireless: ath5k: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath5k/ahb.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/ath/ath5k/ahb.c b/drivers/net/wireless/ath/ath5k/ahb.c
index e9bc9e616b69..79bffe165cab 100644
--- a/drivers/net/wireless/ath/ath5k/ahb.c
+++ b/drivers/net/wireless/ath/ath5k/ahb.c
@@ -37,12 +37,9 @@ ath5k_ahb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
 {
 	struct ath5k_hw *ah = common->priv;
 	struct platform_device *pdev = to_platform_device(ah->dev);
-	struct ar231x_board_config *bcfg = pdev->dev.platform_data;
+	struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
 	u16 *eeprom, *eeprom_end;
 
-
-
-	bcfg = pdev->dev.platform_data;
 	eeprom = (u16 *) bcfg->radio;
 	eeprom_end = ((void *) bcfg->config) + BOARD_CONFIG_BUFSZ;
 
@@ -57,7 +54,7 @@ ath5k_ahb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
 int ath5k_hw_read_srev(struct ath5k_hw *ah)
 {
 	struct platform_device *pdev = to_platform_device(ah->dev);
-	struct ar231x_board_config *bcfg = pdev->dev.platform_data;
+	struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
 	ah->ah_mac_srev = bcfg->devid;
 	return 0;
 }
@@ -65,7 +62,7 @@ int ath5k_hw_read_srev(struct ath5k_hw *ah)
 static int ath5k_ahb_eeprom_read_mac(struct ath5k_hw *ah, u8 *mac)
 {
 	struct platform_device *pdev = to_platform_device(ah->dev);
-	struct ar231x_board_config *bcfg = pdev->dev.platform_data;
+	struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
 	u8 *cfg_mac;
 
 	if (to_platform_device(ah->dev)->id == 0)
@@ -87,7 +84,7 @@ static const struct ath_bus_ops ath_ahb_bus_ops = {
 /*Initialization*/
 static int ath_ahb_probe(struct platform_device *pdev)
 {
-	struct ar231x_board_config *bcfg = pdev->dev.platform_data;
+	struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
 	struct ath5k_hw *ah;
 	struct ieee80211_hw *hw;
 	struct resource *res;
@@ -96,7 +93,7 @@ static int ath_ahb_probe(struct platform_device *pdev)
 	int ret = 0;
 	u32 reg;
 
-	if (!pdev->dev.platform_data) {
+	if (!dev_get_platdata(&pdev->dev)) {
 		dev_err(&pdev->dev, "no platform data specified\n");
 		ret = -EINVAL;
 		goto err_out;
@@ -193,7 +190,7 @@ static int ath_ahb_probe(struct platform_device *pdev)
 
 static int ath_ahb_remove(struct platform_device *pdev)
 {
-	struct ar231x_board_config *bcfg = pdev->dev.platform_data;
+	struct ar231x_board_config *bcfg = dev_get_platdata(&pdev->dev);
 	struct ieee80211_hw *hw = platform_get_drvdata(pdev);
 	struct ath5k_hw *ah;
 	u32 reg;
-- 
cgit 


From 8f616c6d312e2bd8971a068c1bedb47658c53363 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 17:53:02 +0900
Subject: wireless: ath9k: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ahb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ahb.c b/drivers/net/wireless/ath/ath9k/ahb.c
index 072e4b531067..2dff2765769b 100644
--- a/drivers/net/wireless/ath/ath9k/ahb.c
+++ b/drivers/net/wireless/ath/ath9k/ahb.c
@@ -54,7 +54,7 @@ static bool ath_ahb_eeprom_read(struct ath_common *common, u32 off, u16 *data)
 	struct platform_device *pdev = to_platform_device(sc->dev);
 	struct ath9k_platform_data *pdata;
 
-	pdata = (struct ath9k_platform_data *) pdev->dev.platform_data;
+	pdata = dev_get_platdata(&pdev->dev);
 	if (off >= (ARRAY_SIZE(pdata->eeprom_data))) {
 		ath_err(common,
 			"%s: flash read failed, offset %08x is out of range\n",
@@ -84,7 +84,7 @@ static int ath_ahb_probe(struct platform_device *pdev)
 	struct ath_hw *ah;
 	char hw_name[64];
 
-	if (!pdev->dev.platform_data) {
+	if (!dev_get_platdata(&pdev->dev)) {
 		dev_err(&pdev->dev, "no platform data specified\n");
 		return -EINVAL;
 	}
-- 
cgit 


From f41167026d2cfaa238235d17344aabf9d9aee6fe Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 17:54:47 +0900
Subject: wireless: brcmfmac: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
index 64f4a2bc8dde..592ae13c1d55 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
@@ -468,7 +468,7 @@ static int brcmf_sdio_pd_probe(struct platform_device *pdev)
 
 	brcmf_dbg(SDIO, "Enter\n");
 
-	brcmfmac_sdio_pdata = pdev->dev.platform_data;
+	brcmfmac_sdio_pdata = dev_get_platdata(&pdev->dev);
 
 	if (brcmfmac_sdio_pdata->power_on)
 		brcmfmac_sdio_pdata->power_on();
-- 
cgit 


From 3ec8a8d88f762c78caa2d364c111089db81717be Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 17:55:41 +0900
Subject: wireless: cw1200: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/cw1200/cw1200_spi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/cw1200/cw1200_spi.c b/drivers/net/wireless/cw1200/cw1200_spi.c
index f5e6b489ed32..e310752f0e33 100644
--- a/drivers/net/wireless/cw1200/cw1200_spi.c
+++ b/drivers/net/wireless/cw1200/cw1200_spi.c
@@ -375,7 +375,7 @@ static struct hwbus_ops cw1200_spi_hwbus_ops = {
 static int cw1200_spi_probe(struct spi_device *func)
 {
 	const struct cw1200_platform_data_spi *plat_data =
-		func->dev.platform_data;
+		dev_get_platdata(&func->dev);
 	struct hwbus_priv *self;
 	int status;
 
@@ -453,7 +453,7 @@ static int cw1200_spi_disconnect(struct spi_device *func)
 		}
 		kfree(self);
 	}
-	cw1200_spi_off(func->dev.platform_data);
+	cw1200_spi_off(dev_get_platdata(&func->dev));
 
 	return 0;
 }
-- 
cgit 


From 7204c978278797356e5142fc5d749f360d787e01 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 17:56:27 +0900
Subject: wireless: libertas: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/libertas/if_spi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c
index 4bb6574f4073..5d39ec880d84 100644
--- a/drivers/net/wireless/libertas/if_spi.c
+++ b/drivers/net/wireless/libertas/if_spi.c
@@ -1128,7 +1128,7 @@ static int if_spi_probe(struct spi_device *spi)
 {
 	struct if_spi_card *card;
 	struct lbs_private *priv = NULL;
-	struct libertas_spi_platform_data *pdata = spi->dev.platform_data;
+	struct libertas_spi_platform_data *pdata = dev_get_platdata(&spi->dev);
 	int err = 0;
 
 	lbs_deb_enter(LBS_DEB_SPI);
-- 
cgit 


From 5f4fe16bac118ed9e88fdf14380e1c1345376a7d Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 17:57:05 +0900
Subject: wireless: wl1251: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ti/wl1251/spi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ti/wl1251/spi.c b/drivers/net/wireless/ti/wl1251/spi.c
index c7dc6feab2ff..1342f81e683d 100644
--- a/drivers/net/wireless/ti/wl1251/spi.c
+++ b/drivers/net/wireless/ti/wl1251/spi.c
@@ -243,7 +243,7 @@ static int wl1251_spi_probe(struct spi_device *spi)
 	struct wl1251 *wl;
 	int ret;
 
-	pdata = spi->dev.platform_data;
+	pdata = dev_get_platdata(&spi->dev);
 	if (!pdata) {
 		wl1251_error("no platform data");
 		return -ENODEV;
-- 
cgit 


From 90650625dba2852bcf91d5edf472a79e9e333ab7 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 17:57:57 +0900
Subject: wireless: wlcore: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ti/wlcore/main.c | 2 +-
 drivers/net/wireless/ti/wlcore/spi.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 38995f90040d..c30e1f19d8d3 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -5900,7 +5900,7 @@ static void wlcore_nvs_cb(const struct firmware *fw, void *context)
 {
 	struct wl1271 *wl = context;
 	struct platform_device *pdev = wl->pdev;
-	struct wlcore_platdev_data *pdev_data = pdev->dev.platform_data;
+	struct wlcore_platdev_data *pdev_data = dev_get_platdata(&pdev->dev);
 	struct wl12xx_platform_data *pdata = pdev_data->pdata;
 	unsigned long irqflags;
 	int ret;
diff --git a/drivers/net/wireless/ti/wlcore/spi.c b/drivers/net/wireless/ti/wlcore/spi.c
index 1b0cd98e35f1..b2c018dccf18 100644
--- a/drivers/net/wireless/ti/wlcore/spi.c
+++ b/drivers/net/wireless/ti/wlcore/spi.c
@@ -335,7 +335,7 @@ static int wl1271_probe(struct spi_device *spi)
 	if (!pdev_data)
 		goto out;
 
-	pdev_data->pdata = spi->dev.platform_data;
+	pdev_data->pdata = dev_get_platdata(&spi->dev);
 	if (!pdev_data->pdata) {
 		dev_err(&spi->dev, "no platform data\n");
 		ret = -ENODEV;
-- 
cgit 


From c4978e251f3a5cd0576bc411942f08c9a11f62d8 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 17:58:32 +0900
Subject: wireless: wl12xx: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ti/wl12xx/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ti/wl12xx/main.c b/drivers/net/wireless/ti/wl12xx/main.c
index 1c627da85083..591526b99154 100644
--- a/drivers/net/wireless/ti/wl12xx/main.c
+++ b/drivers/net/wireless/ti/wl12xx/main.c
@@ -1704,7 +1704,7 @@ static struct ieee80211_sta_ht_cap wl12xx_ht_cap = {
 static int wl12xx_setup(struct wl1271 *wl)
 {
 	struct wl12xx_priv *priv = wl->priv;
-	struct wlcore_platdev_data *pdev_data = wl->pdev->dev.platform_data;
+	struct wlcore_platdev_data *pdev_data = dev_get_platdata(&wl->pdev->dev);
 	struct wl12xx_platform_data *pdata = pdev_data->pdata;
 
 	wl->rtable = wl12xx_rtable;
-- 
cgit 


From 8d450935ae7f9ceaaa2c6fb21856c286aa9ccf8e Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 20:18:38 +0900
Subject: wireless: rtlwifi: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/pci.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c
index 703f839af6ca..2b6d3e0afef0 100644
--- a/drivers/net/wireless/rtlwifi/pci.c
+++ b/drivers/net/wireless/rtlwifi/pci.c
@@ -2009,7 +2009,6 @@ fail2:
 fail1:
 	if (hw)
 		ieee80211_free_hw(hw);
-	pci_set_drvdata(pdev, NULL);
 	pci_disable_device(pdev);
 
 	return err;
@@ -2064,8 +2063,6 @@ void rtl_pci_disconnect(struct pci_dev *pdev)
 
 	rtl_pci_disable_aspm(hw);
 
-	pci_set_drvdata(pdev, NULL);
-
 	ieee80211_free_hw(hw);
 }
 EXPORT_SYMBOL(rtl_pci_disconnect);
-- 
cgit 


From c1faf2cae280400e5368431da9c87ecfca8fbc62 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 20:19:41 +0900
Subject: wireless: iwlegacy: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlegacy/3945-mac.c | 2 --
 drivers/net/wireless/iwlegacy/4965-mac.c | 2 --
 2 files changed, 4 deletions(-)

diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c
index 9581d07a4242..dea3b50d68b9 100644
--- a/drivers/net/wireless/iwlegacy/3945-mac.c
+++ b/drivers/net/wireless/iwlegacy/3945-mac.c
@@ -3811,7 +3811,6 @@ out_iounmap:
 out_pci_release_regions:
 	pci_release_regions(pdev);
 out_pci_disable_device:
-	pci_set_drvdata(pdev, NULL);
 	pci_disable_device(pdev);
 out_ieee80211_free_hw:
 	ieee80211_free_hw(il->hw);
@@ -3888,7 +3887,6 @@ il3945_pci_remove(struct pci_dev *pdev)
 	iounmap(il->hw_base);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 
 	il_free_channel_map(il);
 	il_free_geos(il);
diff --git a/drivers/net/wireless/iwlegacy/4965-mac.c b/drivers/net/wireless/iwlegacy/4965-mac.c
index 5ab50a5b48b1..3982ab76f375 100644
--- a/drivers/net/wireless/iwlegacy/4965-mac.c
+++ b/drivers/net/wireless/iwlegacy/4965-mac.c
@@ -6706,7 +6706,6 @@ out_free_eeprom:
 out_iounmap:
 	iounmap(il->hw_base);
 out_pci_release_regions:
-	pci_set_drvdata(pdev, NULL);
 	pci_release_regions(pdev);
 out_pci_disable_device:
 	pci_disable_device(pdev);
@@ -6787,7 +6786,6 @@ il4965_pci_remove(struct pci_dev *pdev)
 	iounmap(il->hw_base);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 
 	il4965_uninit_drv(il);
 
-- 
cgit 


From 11caec6952599c95e43e34b87e75a6add5be0067 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 20:22:10 +0900
Subject: wireless: adm8211: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/adm8211.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/wireless/adm8211.c b/drivers/net/wireless/adm8211.c
index f9a24e599dee..cfce83e1f273 100644
--- a/drivers/net/wireless/adm8211.c
+++ b/drivers/net/wireless/adm8211.c
@@ -1924,7 +1924,6 @@ static int adm8211_probe(struct pci_dev *pdev,
 	pci_iounmap(pdev, priv->map);
 
  err_free_dev:
-	pci_set_drvdata(pdev, NULL);
 	ieee80211_free_hw(dev);
 
  err_free_reg:
-- 
cgit 


From 81d503660dc959af641bb3b54a9162586297dc39 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 20:23:50 +0900
Subject: wireless: airo: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/airo.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c
index 7fe19648f10e..edf4b57c4aaa 100644
--- a/drivers/net/wireless/airo.c
+++ b/drivers/net/wireless/airo.c
@@ -5570,7 +5570,6 @@ static void airo_pci_remove(struct pci_dev *pdev)
 	airo_print_info(dev->name, "Unregistering...");
 	stop_airo_card(dev, 1);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 static int airo_pci_suspend(struct pci_dev *pdev, pm_message_t state)
-- 
cgit 


From 1348088d6ff39c3b2c560da339eaf6284df95664 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 20:25:11 +0900
Subject: wireless: ath10k: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath10k/pci.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 622901d5237f..56501f47ab9c 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -2520,7 +2520,6 @@ err_region:
 err_device:
 	pci_disable_device(pdev);
 err_ar:
-	pci_set_drvdata(pdev, NULL);
 	ath10k_core_destroy(ar);
 err_ar_pci:
 	/* call HIF PCI free here */
@@ -2548,7 +2547,6 @@ static void ath10k_pci_remove(struct pci_dev *pdev)
 
 	ath10k_core_unregister(ar);
 
-	pci_set_drvdata(pdev, NULL);
 	pci_iounmap(pdev, ar_pci->mem);
 	pci_release_region(pdev, BAR_NUM);
 	pci_clear_master(pdev);
-- 
cgit 


From 3f06534183a0dd68a40fb286da0025d95a586eb0 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 20:26:13 +0900
Subject: wireless: wil6210: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Vladimir Kondratiev <qca_vkondrat@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/wil6210/pcie_bus.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/wireless/ath/wil6210/pcie_bus.c b/drivers/net/wireless/ath/wil6210/pcie_bus.c
index eb1dc7ad80fb..eeceab39cda2 100644
--- a/drivers/net/wireless/ath/wil6210/pcie_bus.c
+++ b/drivers/net/wireless/ath/wil6210/pcie_bus.c
@@ -197,7 +197,6 @@ static void wil_pcie_remove(struct pci_dev *pdev)
 	pci_iounmap(pdev, wil->csr);
 	pci_release_region(pdev, 0);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 static DEFINE_PCI_DEVICE_TABLE(wil6210_pcie_ids) = {
-- 
cgit 


From 0acfd4b06e4b4550c94e24a582853df16d4eb5a5 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 20:27:09 +0900
Subject: wireless: ipw2x00: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ipw2x00/ipw2200.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c
index 6b823a1ab789..f394af777cf5 100644
--- a/drivers/net/wireless/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/ipw2x00/ipw2200.c
@@ -11885,7 +11885,6 @@ static int ipw_pci_probe(struct pci_dev *pdev,
 	pci_release_regions(pdev);
       out_pci_disable_device:
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
       out_free_libipw:
 	free_libipw(priv->net_dev, 0);
       out:
@@ -11966,7 +11965,6 @@ static void ipw_pci_remove(struct pci_dev *pdev)
 	iounmap(priv->hw_base);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 	/* wiphy_unregister needs to be here, before free_libipw */
 	wiphy_unregister(priv->ieee->wdev.wiphy);
 	kfree(priv->ieee->a_band.channels);
-- 
cgit 


From e53c61a055988739e0f7a2cbf14a5e48427778a3 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 20:27:49 +0900
Subject: wireless: mwl8k: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/mwl8k.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c
index a3707fd4ef62..b953ad621e0b 100644
--- a/drivers/net/wireless/mwl8k.c
+++ b/drivers/net/wireless/mwl8k.c
@@ -6093,7 +6093,6 @@ err_iounmap:
 	if (priv->sram != NULL)
 		pci_iounmap(pdev, priv->sram);
 
-	pci_set_drvdata(pdev, NULL);
 	ieee80211_free_hw(hw);
 
 err_free_reg:
@@ -6147,7 +6146,6 @@ static void mwl8k_remove(struct pci_dev *pdev)
 unmap:
 	pci_iounmap(pdev, priv->regs);
 	pci_iounmap(pdev, priv->sram);
-	pci_set_drvdata(pdev, NULL);
 	ieee80211_free_hw(hw);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-- 
cgit 


From 68351b58036b39fc91d52682a2806aa8a66e53dd Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 20:29:19 +0900
Subject: wireless: orinoco: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/orinoco/orinoco_nortel.c | 2 --
 drivers/net/wireless/orinoco/orinoco_pci.c    | 2 --
 drivers/net/wireless/orinoco/orinoco_plx.c    | 2 --
 drivers/net/wireless/orinoco/orinoco_tmd.c    | 2 --
 4 files changed, 8 deletions(-)

diff --git a/drivers/net/wireless/orinoco/orinoco_nortel.c b/drivers/net/wireless/orinoco/orinoco_nortel.c
index d73fdf6185a2..ffb2469eb679 100644
--- a/drivers/net/wireless/orinoco/orinoco_nortel.c
+++ b/drivers/net/wireless/orinoco/orinoco_nortel.c
@@ -234,7 +234,6 @@ static int orinoco_nortel_init_one(struct pci_dev *pdev,
 	free_irq(pdev->irq, priv);
 
  fail_irq:
-	pci_set_drvdata(pdev, NULL);
 	free_orinocodev(priv);
 
  fail_alloc:
@@ -265,7 +264,6 @@ static void orinoco_nortel_remove_one(struct pci_dev *pdev)
 
 	orinoco_if_del(priv);
 	free_irq(pdev->irq, priv);
-	pci_set_drvdata(pdev, NULL);
 	free_orinocodev(priv);
 	pci_iounmap(pdev, priv->hw.iobase);
 	pci_iounmap(pdev, card->attr_io);
diff --git a/drivers/net/wireless/orinoco/orinoco_pci.c b/drivers/net/wireless/orinoco/orinoco_pci.c
index 677bf14eca84..5ae1191d2532 100644
--- a/drivers/net/wireless/orinoco/orinoco_pci.c
+++ b/drivers/net/wireless/orinoco/orinoco_pci.c
@@ -184,7 +184,6 @@ static int orinoco_pci_init_one(struct pci_dev *pdev,
 	free_irq(pdev->irq, priv);
 
  fail_irq:
-	pci_set_drvdata(pdev, NULL);
 	free_orinocodev(priv);
 
  fail_alloc:
@@ -205,7 +204,6 @@ static void orinoco_pci_remove_one(struct pci_dev *pdev)
 
 	orinoco_if_del(priv);
 	free_irq(pdev->irq, priv);
-	pci_set_drvdata(pdev, NULL);
 	free_orinocodev(priv);
 	pci_iounmap(pdev, priv->hw.iobase);
 	pci_release_regions(pdev);
diff --git a/drivers/net/wireless/orinoco/orinoco_plx.c b/drivers/net/wireless/orinoco/orinoco_plx.c
index 2559dbd6184b..bbd36d1676ff 100644
--- a/drivers/net/wireless/orinoco/orinoco_plx.c
+++ b/drivers/net/wireless/orinoco/orinoco_plx.c
@@ -273,7 +273,6 @@ static int orinoco_plx_init_one(struct pci_dev *pdev,
 	free_irq(pdev->irq, priv);
 
  fail_irq:
-	pci_set_drvdata(pdev, NULL);
 	free_orinocodev(priv);
 
  fail_alloc:
@@ -301,7 +300,6 @@ static void orinoco_plx_remove_one(struct pci_dev *pdev)
 
 	orinoco_if_del(priv);
 	free_irq(pdev->irq, priv);
-	pci_set_drvdata(pdev, NULL);
 	free_orinocodev(priv);
 	pci_iounmap(pdev, priv->hw.iobase);
 	pci_iounmap(pdev, card->attr_io);
diff --git a/drivers/net/wireless/orinoco/orinoco_tmd.c b/drivers/net/wireless/orinoco/orinoco_tmd.c
index 42afeeea2c40..04b08de5fd5d 100644
--- a/drivers/net/wireless/orinoco/orinoco_tmd.c
+++ b/drivers/net/wireless/orinoco/orinoco_tmd.c
@@ -170,7 +170,6 @@ static int orinoco_tmd_init_one(struct pci_dev *pdev,
 	free_irq(pdev->irq, priv);
 
  fail_irq:
-	pci_set_drvdata(pdev, NULL);
 	free_orinocodev(priv);
 
  fail_alloc:
@@ -195,7 +194,6 @@ static void orinoco_tmd_remove_one(struct pci_dev *pdev)
 
 	orinoco_if_del(priv);
 	free_irq(pdev->irq, priv);
-	pci_set_drvdata(pdev, NULL);
 	free_orinocodev(priv);
 	pci_iounmap(pdev, priv->hw.iobase);
 	pci_iounmap(pdev, card->bridge_io);
-- 
cgit 


From 717a23a1425a5a84b4e90bcdf28f070506b4ad62 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 20:30:49 +0900
Subject: wireless: p54pci: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/p54/p54pci.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/wireless/p54/p54pci.c b/drivers/net/wireless/p54/p54pci.c
index 57e3af8ebb4b..f9a07b0d83ac 100644
--- a/drivers/net/wireless/p54/p54pci.c
+++ b/drivers/net/wireless/p54/p54pci.c
@@ -631,7 +631,6 @@ static int p54p_probe(struct pci_dev *pdev,
 	iounmap(priv->map);
 
  err_free_dev:
-	pci_set_drvdata(pdev, NULL);
 	p54_free_common(dev);
 
  err_free_reg:
-- 
cgit 


From 8aee318f8d94761546f06248ad87610e4104655a Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 20:32:19 +0900
Subject: wireless: rtl818x: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtl818x/rtl8180/dev.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/wireless/rtl818x/rtl8180/dev.c b/drivers/net/wireless/rtl818x/rtl8180/dev.c
index fc207b268e4f..a91506b12a62 100644
--- a/drivers/net/wireless/rtl818x/rtl8180/dev.c
+++ b/drivers/net/wireless/rtl818x/rtl8180/dev.c
@@ -1122,7 +1122,6 @@ static int rtl8180_probe(struct pci_dev *pdev,
 	iounmap(priv->map);
 
  err_free_dev:
-	pci_set_drvdata(pdev, NULL);
 	ieee80211_free_hw(dev);
 
  err_free_reg:
-- 
cgit 


From c6945455682c92b9b61f2cf354771e00da11492d Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Wed, 11 Sep 2013 11:40:57 +0530
Subject: ath9k: Fix calibration for AR9462

TX IQ calibration is disabled by default for AR9462, this
is done using the initvals (reg 0xa644).

But, to compensate for this, the AR_PHY_RX_DELAY register
should be set to the max allowed value when performing
calibration.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ar9003_calib.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
index 6988e1d081f2..6001bc0ebc55 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
@@ -1019,6 +1019,7 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah,
 	bool is_reusable = true, status = true;
 	bool run_rtt_cal = false, run_agc_cal, sep_iq_cal = false;
 	bool rtt = !!(ah->caps.hw_caps & ATH9K_HW_CAP_RTT);
+	u32 rx_delay = 0;
 	u32 agc_ctrl = 0, agc_supp_cals = AR_PHY_AGC_CONTROL_OFFSET_CAL |
 					  AR_PHY_AGC_CONTROL_FLTR_CAL   |
 					  AR_PHY_AGC_CONTROL_PKDET_CAL;
@@ -1099,6 +1100,15 @@ skip_tx_iqcal:
 		REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
 	}
 
+	if (REG_READ(ah, AR_PHY_CL_CAL_CTL) & AR_PHY_CL_CAL_ENABLE) {
+		rx_delay = REG_READ(ah, AR_PHY_RX_DELAY);
+		/* Disable BB_active */
+		REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
+		udelay(5);
+		REG_WRITE(ah, AR_PHY_RX_DELAY, AR_PHY_RX_DELAY_DELAY);
+		REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
+	}
+
 	if (run_agc_cal || !(ah->ah_flags & AH_FASTCC)) {
 		/* Calibrate the AGC */
 		REG_WRITE(ah, AR_PHY_AGC_CONTROL,
@@ -1113,6 +1123,11 @@ skip_tx_iqcal:
 		ar9003_hw_do_manual_peak_cal(ah, chan);
 	}
 
+	if (REG_READ(ah, AR_PHY_CL_CAL_CTL) & AR_PHY_CL_CAL_ENABLE) {
+		REG_WRITE(ah, AR_PHY_RX_DELAY, rx_delay);
+		udelay(5);
+	}
+
 	if (ath9k_hw_mci_is_enabled(ah) && IS_CHAN_2GHZ(chan) && run_agc_cal)
 		ar9003_mci_init_cal_done(ah);
 
-- 
cgit 


From 9ef48932344a8ea9d6d1628d92afc2c5d6958336 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Wed, 11 Sep 2013 11:40:58 +0530
Subject: ath9k: Fix issue with parsing malformed CFP IE

All QCA chips have the ability to parse the CF Parameter Set
IE in beacons. If the IE is malformed in the beacons from some
APs [1], the HW locks up. In AP mode, a beacon stuck would happen
and in client mode, a disconnection usually is the result.

To fix this issue, set the AR_PCU_MISC_MODE2_CFP_IGNORE to ignore
the CFP IE in beacons - this is applicable for all chips. For
AP mode, if this issue happens, the NAV is also corrupted and has
to be reset - this will be done in a subsequent patch.

[1] : http://msujith.org/ath9k/cfp/Malformed-CF-Param.png

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ar5008_phy.c | 2 ++
 drivers/net/wireless/ath/ath9k/ar9003_phy.c | 6 ++++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar5008_phy.c b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
index 08656473c63e..9e4e2a693774 100644
--- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
@@ -626,6 +626,8 @@ static void ar5008_hw_override_ini(struct ath_hw *ah,
 		if (AR_SREV_9287_11_OR_LATER(ah))
 			val = val & (~AR_PCU_MISC_MODE2_HWWAR2);
 
+		val |= AR_PCU_MISC_MODE2_CFP_IGNORE;
+
 		REG_WRITE(ah, AR_PCU_MISC_MODE2, val);
 	}
 
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index b8a279e889c1..ec37213fb765 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -627,8 +627,10 @@ static void ar9003_hw_override_ini(struct ath_hw *ah)
 	 * MAC addr only will fail.
 	 */
 	val = REG_READ(ah, AR_PCU_MISC_MODE2) & (~AR_ADHOC_MCAST_KEYID_ENABLE);
-	REG_WRITE(ah, AR_PCU_MISC_MODE2,
-		  val | AR_AGG_WEP_ENABLE_FIX | AR_AGG_WEP_ENABLE);
+	val |= AR_AGG_WEP_ENABLE_FIX |
+	       AR_AGG_WEP_ENABLE |
+	       AR_PCU_MISC_MODE2_CFP_IGNORE;
+	REG_WRITE(ah, AR_PCU_MISC_MODE2, val);
 
 	REG_SET_BIT(ah, AR_PHY_CCK_DETECT,
 		    AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV);
-- 
cgit 


From 1e516ca7c9ceeeec4ed87f549a14bc3b73427f83 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Wed, 11 Sep 2013 21:30:27 +0530
Subject: ath9k: Handle abnormal NAV in AP mode

Beacon transmission would get stuck if the NAV is
an invalid value for some reason. Check and correct
the NAV value in the HW when this happens.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/beacon.c |  2 ++
 drivers/net/wireless/ath/ath9k/hw.c     | 13 +++++++++++++
 drivers/net/wireless/ath/ath9k/hw.h     |  1 +
 3 files changed, 16 insertions(+)

diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index b5c16b3a37b9..17be35392bb4 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -334,6 +334,8 @@ void ath9k_beacon_tasklet(unsigned long data)
 	if (ath9k_hw_numtxpending(ah, sc->beacon.beaconq) != 0) {
 		sc->beacon.bmisscnt++;
 
+		ath9k_hw_check_nav(ah);
+
 		if (!ath9k_hw_check_alive(ah))
 			ieee80211_queue_work(sc->hw, &sc->hw_check_work);
 
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 525ac984eafd..d3206ab40297 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1656,6 +1656,19 @@ hang_check_iter:
 	return true;
 }
 
+void ath9k_hw_check_nav(struct ath_hw *ah)
+{
+	struct ath_common *common = ath9k_hw_common(ah);
+	u32 val;
+
+	val = REG_READ(ah, AR_NAV);
+	if (val != 0xdeadbeef && val > 0x7fff) {
+		ath_dbg(common, BSTUCK, "Abnormal NAV: 0x%x\n", val);
+		REG_WRITE(ah, AR_NAV, 0);
+	}
+}
+EXPORT_SYMBOL(ath9k_hw_check_nav);
+
 bool ath9k_hw_check_alive(struct ath_hw *ah)
 {
 	int count = 50;
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 5e564c788813..5376011d5200 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -1031,6 +1031,7 @@ void ath9k_hw_set11nmac2040(struct ath_hw *ah);
 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period);
 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
 				    const struct ath9k_beacon_state *bs);
+void ath9k_hw_check_nav(struct ath_hw *ah);
 bool ath9k_hw_check_alive(struct ath_hw *ah);
 
 bool ath9k_hw_setpower(struct ath_hw *ah, enum ath9k_power_mode mode);
-- 
cgit 


From 4b9b42bfe08fa369c4f51f00d5f349b32242cd8c Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Wed, 11 Sep 2013 16:36:31 +0530
Subject: ath9k: Use bitops for calibration flags

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ar9002_calib.c |  4 ++--
 drivers/net/wireless/ath/ath9k/ar9003_calib.c | 20 ++++++++++++--------
 drivers/net/wireless/ath/ath9k/ar9003_mci.c   |  6 +++---
 drivers/net/wireless/ath/ath9k/ar9003_rtt.c   |  6 +++---
 drivers/net/wireless/ath/ath9k/calib.c        | 14 +++++++-------
 drivers/net/wireless/ath/ath9k/hw.c           | 12 ++++++------
 drivers/net/wireless/ath/ath9k/hw.h           | 18 +++++++++++-------
 drivers/net/wireless/ath/ath9k/link.c         | 12 +++++++-----
 drivers/net/wireless/ath/ath9k/xmit.c         |  2 +-
 9 files changed, 52 insertions(+), 42 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar9002_calib.c b/drivers/net/wireless/ath/ath9k/ar9002_calib.c
index 9f589744a9f9..32376ad74011 100644
--- a/drivers/net/wireless/ath/ath9k/ar9002_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_calib.c
@@ -671,7 +671,7 @@ static bool ar9002_hw_calibrate(struct ath_hw *ah,
 
 	nfcal = !!(REG_READ(ah, AR_PHY_AGC_CONTROL) & AR_PHY_AGC_CONTROL_NF);
 	if (ah->caldata)
-		nfcal_pending = ah->caldata->nfcal_pending;
+		nfcal_pending = test_bit(NFCAL_PENDING, &ah->caldata->cal_flags);
 
 	if (currCal && !nfcal &&
 	    (currCal->calState == CAL_RUNNING ||
@@ -861,7 +861,7 @@ static bool ar9002_hw_init_cal(struct ath_hw *ah, struct ath9k_channel *chan)
 	ar9002_hw_pa_cal(ah, true);
 
 	if (ah->caldata)
-		ah->caldata->nfcal_pending = true;
+		set_bit(NFCAL_PENDING, &ah->caldata->cal_flags);
 
 	ah->cal_list = ah->cal_list_last = ah->cal_list_curr = NULL;
 
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
index 6001bc0ebc55..687173c8d280 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
@@ -727,8 +727,12 @@ static void ar9003_hw_tx_iqcal_load_avg_2_passes(struct ath_hw *ah,
 	REG_RMW_FIELD(ah, AR_PHY_RX_IQCAL_CORR_B0,
 		      AR_PHY_RX_IQCAL_CORR_B0_LOOPBACK_IQCORR_EN, 0x1);
 
-	if (caldata)
-		caldata->done_txiqcal_once = is_reusable;
+	if (caldata) {
+		if (is_reusable)
+			set_bit(TXIQCAL_DONE, &caldata->cal_flags);
+		else
+			clear_bit(TXIQCAL_DONE, &caldata->cal_flags);
+	}
 
 	return;
 }
@@ -990,7 +994,7 @@ static void ar9003_hw_cl_cal_post_proc(struct ath_hw *ah, bool is_reusable)
 	txclcal_done = !!(REG_READ(ah, AR_PHY_AGC_CONTROL) &
 			  AR_PHY_AGC_CONTROL_CLC_SUCCESS);
 
-	if (caldata->done_txclcal_once) {
+	if (test_bit(TXCLCAL_DONE, &caldata->cal_flags)) {
 		for (i = 0; i < AR9300_MAX_CHAINS; i++) {
 			if (!(ah->txchainmask & (1 << i)))
 				continue;
@@ -1006,7 +1010,7 @@ static void ar9003_hw_cl_cal_post_proc(struct ath_hw *ah, bool is_reusable)
 				caldata->tx_clcal[i][j] =
 					REG_READ(ah, CL_TAB_ENTRY(cl_idx[i]));
 		}
-		caldata->done_txclcal_once = true;
+		set_bit(TXCLCAL_DONE, &caldata->cal_flags);
 	}
 }
 
@@ -1053,7 +1057,7 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah,
 	}
 
 	if (ah->enabled_cals & TX_CL_CAL) {
-		if (caldata && caldata->done_txclcal_once)
+		if (caldata && test_bit(TXCLCAL_DONE, &caldata->cal_flags))
 			REG_CLR_BIT(ah, AR_PHY_CL_CAL_CTL,
 				    AR_PHY_CL_CAL_ENABLE);
 		else {
@@ -1077,14 +1081,14 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah,
 	 * AGC calibration
 	 */
 	if (ah->enabled_cals & TX_IQ_ON_AGC_CAL) {
-		if (caldata && !caldata->done_txiqcal_once)
+		if (caldata && !test_bit(TXIQCAL_DONE, &caldata->cal_flags))
 			REG_SET_BIT(ah, AR_PHY_TX_IQCAL_CONTROL_0,
 				    AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL);
 		else
 			REG_CLR_BIT(ah, AR_PHY_TX_IQCAL_CONTROL_0,
 				    AR_PHY_TX_IQCAL_CONTROL_0_ENABLE_TXIQ_CAL);
 		txiqcal_done = run_agc_cal = true;
-	} else if (caldata && !caldata->done_txiqcal_once) {
+	} else if (caldata && !test_bit(TXIQCAL_DONE, &caldata->cal_flags)) {
 		run_agc_cal = true;
 		sep_iq_cal = true;
 	}
@@ -1148,7 +1152,7 @@ skip_tx_iqcal:
 
 	if (txiqcal_done)
 		ar9003_hw_tx_iq_cal_post_proc(ah, is_reusable);
-	else if (caldata && caldata->done_txiqcal_once)
+	else if (caldata && test_bit(TXIQCAL_DONE, &caldata->cal_flags))
 		ar9003_hw_tx_iq_cal_reload(ah);
 
 	ar9003_hw_cl_cal_post_proc(ah, is_reusable);
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_mci.c b/drivers/net/wireless/ath/ath9k/ar9003_mci.c
index 8dd069259e7b..7b94a6c7db3d 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_mci.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_mci.c
@@ -753,9 +753,9 @@ int ar9003_mci_end_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 		    1 << AR_PHY_TIMING_CONTROL4_DO_GAIN_DC_IQ_CAL_SHIFT);
 
 	if (caldata) {
-		caldata->done_txiqcal_once = false;
-		caldata->done_txclcal_once = false;
-		caldata->rtt_done = false;
+		clear_bit(TXIQCAL_DONE, &caldata->cal_flags);
+		clear_bit(TXCLCAL_DONE, &caldata->cal_flags);
+		clear_bit(RTT_DONE, &caldata->cal_flags);
 	}
 
 	if (!ath9k_hw_init_cal(ah, chan))
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_rtt.c b/drivers/net/wireless/ath/ath9k/ar9003_rtt.c
index 74de3539c2c8..e398c1812977 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_rtt.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_rtt.c
@@ -161,7 +161,7 @@ void ar9003_hw_rtt_fill_hist(struct ath_hw *ah)
 		}
 	}
 
-	ah->caldata->rtt_done = true;
+	set_bit(RTT_DONE, &ah->caldata->cal_flags);
 }
 
 void ar9003_hw_rtt_clear_hist(struct ath_hw *ah)
@@ -176,7 +176,7 @@ void ar9003_hw_rtt_clear_hist(struct ath_hw *ah)
 	}
 
 	if (ah->caldata)
-		ah->caldata->rtt_done = false;
+		clear_bit(RTT_DONE, &ah->caldata->cal_flags);
 }
 
 bool ar9003_hw_rtt_restore(struct ath_hw *ah, struct ath9k_channel *chan)
@@ -186,7 +186,7 @@ bool ar9003_hw_rtt_restore(struct ath_hw *ah, struct ath9k_channel *chan)
 	if (!ah->caldata)
 		return false;
 
-	if (!ah->caldata->rtt_done)
+	if (!test_bit(RTT_DONE, &ah->caldata->cal_flags))
 		return false;
 
 	ar9003_hw_rtt_enable(ah);
diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c
index 5e8219a91e25..d438a0341e68 100644
--- a/drivers/net/wireless/ath/ath9k/calib.c
+++ b/drivers/net/wireless/ath/ath9k/calib.c
@@ -119,7 +119,7 @@ static void ath9k_hw_update_nfcal_hist_buffer(struct ath_hw *ah,
 			ath_dbg(common, CALIBRATE,
 				"NFmid[%d] (%d) > MAX (%d), %s\n",
 				i, h[i].privNF, limit->max,
-				(cal->nfcal_interference ?
+				(test_bit(NFCAL_INTF, &cal->cal_flags) ?
 				 "not corrected (due to interference)" :
 				 "correcting to MAX"));
 
@@ -130,7 +130,7 @@ static void ath9k_hw_update_nfcal_hist_buffer(struct ath_hw *ah,
 			 * we bypass this limit here in order to better deal
 			 * with our environment.
 			 */
-			if (!cal->nfcal_interference)
+			if (!test_bit(NFCAL_INTF, &cal->cal_flags))
 				h[i].privNF = limit->max;
 		}
 	}
@@ -141,7 +141,7 @@ static void ath9k_hw_update_nfcal_hist_buffer(struct ath_hw *ah,
 	 * Re-enable the enforcement of the NF maximum again.
 	 */
 	if (!high_nf_mid)
-		cal->nfcal_interference = false;
+		clear_bit(NFCAL_INTF, &cal->cal_flags);
 }
 
 static bool ath9k_hw_get_nf_thresh(struct ath_hw *ah,
@@ -220,7 +220,7 @@ EXPORT_SYMBOL(ath9k_hw_reset_calvalid);
 void ath9k_hw_start_nfcal(struct ath_hw *ah, bool update)
 {
 	if (ah->caldata)
-		ah->caldata->nfcal_pending = true;
+		set_bit(NFCAL_PENDING, &ah->caldata->cal_flags);
 
 	REG_SET_BIT(ah, AR_PHY_AGC_CONTROL,
 		    AR_PHY_AGC_CONTROL_ENABLE_NF);
@@ -391,7 +391,7 @@ bool ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan)
 	}
 
 	h = caldata->nfCalHist;
-	caldata->nfcal_pending = false;
+	clear_bit(NFCAL_PENDING, &caldata->cal_flags);
 	ath9k_hw_update_nfcal_hist_buffer(ah, caldata, nfarray);
 	chan->noisefloor = h[0].privNF;
 	ah->noise = ath9k_hw_getchan_noise(ah, chan);
@@ -437,12 +437,12 @@ void ath9k_hw_bstuck_nfcal(struct ath_hw *ah)
 	 * the baseband update the internal NF value itself, similar to
 	 * what is being done after a full reset.
 	 */
-	if (!caldata->nfcal_pending)
+	if (!test_bit(NFCAL_PENDING, &caldata->cal_flags))
 		ath9k_hw_start_nfcal(ah, true);
 	else if (!(REG_READ(ah, AR_PHY_AGC_CONTROL) & AR_PHY_AGC_CONTROL_NF))
 		ath9k_hw_getnf(ah, ah->curchan);
 
-	caldata->nfcal_interference = true;
+	set_bit(NFCAL_INTF, &caldata->cal_flags);
 }
 EXPORT_SYMBOL(ath9k_hw_bstuck_nfcal);
 
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index d3206ab40297..f11e8389a9be 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1847,9 +1847,9 @@ static int ath9k_hw_do_fastcc(struct ath_hw *ah, struct ath9k_channel *chan)
 	 * re-using are present.
 	 */
 	if (AR_SREV_9462(ah) && (ah->caldata &&
-				 (!ah->caldata->done_txiqcal_once ||
-				  !ah->caldata->done_txclcal_once ||
-				  !ah->caldata->rtt_done)))
+				 (!test_bit(TXIQCAL_DONE, &ah->caldata->cal_flags) ||
+				  !test_bit(TXCLCAL_DONE, &ah->caldata->cal_flags) ||
+				  !test_bit(RTT_DONE, &ah->caldata->cal_flags))))
 		goto fail;
 
 	ath_dbg(common, RESET, "FastChannelChange for %d -> %d\n",
@@ -1905,7 +1905,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 		memset(caldata, 0, sizeof(*caldata));
 		ath9k_init_nfcal_hist_buffer(ah, chan);
 	} else if (caldata) {
-		caldata->paprd_packet_sent = false;
+		clear_bit(PAPRD_PACKET_SENT, &caldata->cal_flags);
 	}
 	ah->noise = ath9k_hw_getchan_noise(ah, chan);
 
@@ -2042,8 +2042,8 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 	ath9k_hw_init_bb(ah, chan);
 
 	if (caldata) {
-		caldata->done_txiqcal_once = false;
-		caldata->done_txclcal_once = false;
+		clear_bit(TXIQCAL_DONE, &caldata->cal_flags);
+		clear_bit(TXCLCAL_DONE, &caldata->cal_flags);
 	}
 	if (!ath9k_hw_init_cal(ah, chan))
 		return -EIO;
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 5376011d5200..e5e927020945 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -404,20 +404,24 @@ enum ath9k_int {
 #define MAX_CL_TAB_ENTRY	16
 #define CL_TAB_ENTRY(reg_base)	(reg_base + (4 * j))
 
+enum ath9k_cal_flags {
+	RTT_DONE,
+	PAPRD_PACKET_SENT,
+	PAPRD_DONE,
+	NFCAL_PENDING,
+	NFCAL_INTF,
+	TXIQCAL_DONE,
+	TXCLCAL_DONE,
+};
+
 struct ath9k_hw_cal_data {
 	u16 channel;
 	u32 channelFlags;
 	u32 chanmode;
+	unsigned long cal_flags;
 	int32_t CalValid;
 	int8_t iCoff;
 	int8_t qCoff;
-	bool rtt_done;
-	bool paprd_packet_sent;
-	bool paprd_done;
-	bool nfcal_pending;
-	bool nfcal_interference;
-	bool done_txiqcal_once;
-	bool done_txclcal_once;
 	u16 small_signal_gain[AR9300_MAX_CHAINS];
 	u32 pa_table[AR9300_MAX_CHAINS][PAPRD_TABLE_SZ];
 	u32 num_measures[AR9300_MAX_CHAINS];
diff --git a/drivers/net/wireless/ath/ath9k/link.c b/drivers/net/wireless/ath/ath9k/link.c
index 2f831db396ac..84a60644f93a 100644
--- a/drivers/net/wireless/ath/ath9k/link.c
+++ b/drivers/net/wireless/ath/ath9k/link.c
@@ -184,7 +184,7 @@ static void ath_paprd_activate(struct ath_softc *sc)
 	struct ath9k_hw_cal_data *caldata = ah->caldata;
 	int chain;
 
-	if (!caldata || !caldata->paprd_done) {
+	if (!caldata || !test_bit(PAPRD_DONE, &caldata->cal_flags)) {
 		ath_dbg(common, CALIBRATE, "Failed to activate PAPRD\n");
 		return;
 	}
@@ -256,7 +256,9 @@ void ath_paprd_calibrate(struct work_struct *work)
 	int len = 1800;
 	int ret;
 
-	if (!caldata || !caldata->paprd_packet_sent || caldata->paprd_done) {
+	if (!caldata ||
+	    !test_bit(PAPRD_PACKET_SENT, &caldata->cal_flags) ||
+	    test_bit(PAPRD_DONE, &caldata->cal_flags)) {
 		ath_dbg(common, CALIBRATE, "Skipping PAPRD calibration\n");
 		return;
 	}
@@ -316,7 +318,7 @@ void ath_paprd_calibrate(struct work_struct *work)
 	kfree_skb(skb);
 
 	if (chain_ok) {
-		caldata->paprd_done = true;
+		set_bit(PAPRD_DONE, &caldata->cal_flags);
 		ath_paprd_activate(sc);
 	}
 
@@ -343,7 +345,7 @@ void ath_ani_calibrate(unsigned long data)
 	u32 cal_interval, short_cal_interval, long_cal_interval;
 	unsigned long flags;
 
-	if (ah->caldata && ah->caldata->nfcal_interference)
+	if (ah->caldata && test_bit(NFCAL_INTF, &ah->caldata->cal_flags))
 		long_cal_interval = ATH_LONG_CALINTERVAL_INT;
 	else
 		long_cal_interval = ATH_LONG_CALINTERVAL;
@@ -432,7 +434,7 @@ set_timer:
 	mod_timer(&common->ani.timer, jiffies + msecs_to_jiffies(cal_interval));
 
 	if (ar9003_is_paprd_enabled(ah) && ah->caldata) {
-		if (!ah->caldata->paprd_done) {
+		if (!test_bit(PAPRD_DONE, &ah->caldata->cal_flags)) {
 			ieee80211_queue_work(sc->hw, &sc->paprd_work);
 		} else if (!ah->paprd_table_write_done) {
 			ath9k_ps_wakeup(sc);
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 35b515fe3ffa..62c93a655df9 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -2315,7 +2315,7 @@ static void ath_tx_complete(struct ath_softc *sc, struct sk_buff *skb,
 	ath_dbg(common, XMIT, "TX complete: skb: %p\n", skb);
 
 	if (sc->sc_ah->caldata)
-		sc->sc_ah->caldata->paprd_packet_sent = true;
+		set_bit(PAPRD_PACKET_SENT, &sc->sc_ah->caldata->cal_flags);
 
 	if (!(tx_flags & ATH_TX_ERROR))
 		/* Frame was ACKed */
-- 
cgit 


From 3001f0d00bcb77d818efa331864d69a9338550e6 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Wed, 11 Sep 2013 16:36:32 +0530
Subject: ath9k: Fix PeakDetect calibration for AR9462

Since HW PeakDetect calibration is turned on for AR9462,
various conditions have to be handled in the driver:

* Enable agc_cal when loading RTT fails.
* Disable SW PeakDetect calibration when RTT calibration is not enabled.
* Keep SW PeakDetect calibration result in driver.
* Update RTT table according to the saved value.
* Write RTT back after modifying SW RTT table.
* Enable local mode for PeakDetect calibration and restore values.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ar9003_calib.c | 57 +++++++++++++++++++++------
 drivers/net/wireless/ath/ath9k/ar9003_rtt.c   | 52 +++++++++++++++++++++++-
 drivers/net/wireless/ath/ath9k/hw.h           |  2 +
 3 files changed, 99 insertions(+), 12 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_calib.c b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
index 687173c8d280..22934d3ca544 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
@@ -965,18 +965,44 @@ static void ar9003_hw_manual_peak_cal(struct ath_hw *ah, u8 chain, bool is_2g)
 }
 
 static void ar9003_hw_do_manual_peak_cal(struct ath_hw *ah,
-					 struct ath9k_channel *chan)
+					 struct ath9k_channel *chan,
+					 bool run_rtt_cal)
 {
+	struct ath9k_hw_cal_data *caldata = ah->caldata;
 	int i;
 
 	if (!AR_SREV_9462(ah) && !AR_SREV_9565(ah) && !AR_SREV_9485(ah))
 		return;
 
+	if ((ah->caps.hw_caps & ATH9K_HW_CAP_RTT) && !run_rtt_cal)
+		return;
+
 	for (i = 0; i < AR9300_MAX_CHAINS; i++) {
 		if (!(ah->rxchainmask & (1 << i)))
 			continue;
 		ar9003_hw_manual_peak_cal(ah, i, IS_CHAN_2GHZ(chan));
 	}
+
+	if (caldata)
+		set_bit(SW_PKDET_DONE, &caldata->cal_flags);
+
+	if ((ah->caps.hw_caps & ATH9K_HW_CAP_RTT) && caldata) {
+		if (IS_CHAN_2GHZ(chan)){
+			caldata->caldac[0] = REG_READ_FIELD(ah,
+						    AR_PHY_65NM_RXRF_AGC(0),
+						    AR_PHY_65NM_RXRF_AGC_AGC2G_CALDAC_OVR);
+			caldata->caldac[1] = REG_READ_FIELD(ah,
+						    AR_PHY_65NM_RXRF_AGC(1),
+						    AR_PHY_65NM_RXRF_AGC_AGC2G_CALDAC_OVR);
+		} else {
+			caldata->caldac[0] = REG_READ_FIELD(ah,
+						    AR_PHY_65NM_RXRF_AGC(0),
+						    AR_PHY_65NM_RXRF_AGC_AGC5G_CALDAC_OVR);
+			caldata->caldac[1] = REG_READ_FIELD(ah,
+						    AR_PHY_65NM_RXRF_AGC(1),
+						    AR_PHY_65NM_RXRF_AGC_AGC5G_CALDAC_OVR);
+		}
+	}
 }
 
 static void ar9003_hw_cl_cal_post_proc(struct ath_hw *ah, bool is_reusable)
@@ -1047,13 +1073,18 @@ static bool ar9003_hw_init_cal(struct ath_hw *ah,
 		ar9003_hw_rtt_clear_hist(ah);
 	}
 
-	if (rtt && !run_rtt_cal) {
-		agc_ctrl = REG_READ(ah, AR_PHY_AGC_CONTROL);
-		agc_supp_cals &= agc_ctrl;
-		agc_ctrl &= ~(AR_PHY_AGC_CONTROL_OFFSET_CAL |
-			     AR_PHY_AGC_CONTROL_FLTR_CAL |
-			     AR_PHY_AGC_CONTROL_PKDET_CAL);
-		REG_WRITE(ah, AR_PHY_AGC_CONTROL, agc_ctrl);
+	if (rtt) {
+		if (!run_rtt_cal) {
+			agc_ctrl = REG_READ(ah, AR_PHY_AGC_CONTROL);
+			agc_supp_cals &= agc_ctrl;
+			agc_ctrl &= ~(AR_PHY_AGC_CONTROL_OFFSET_CAL |
+				      AR_PHY_AGC_CONTROL_FLTR_CAL |
+				      AR_PHY_AGC_CONTROL_PKDET_CAL);
+			REG_WRITE(ah, AR_PHY_AGC_CONTROL, agc_ctrl);
+		} else {
+			if (ah->ah_flags & AH_FASTCC)
+				run_agc_cal = true;
+		}
 	}
 
 	if (ah->enabled_cals & TX_CL_CAL) {
@@ -1124,7 +1155,7 @@ skip_tx_iqcal:
 				       AR_PHY_AGC_CONTROL_CAL,
 				       0, AH_WAIT_TIMEOUT);
 
-		ar9003_hw_do_manual_peak_cal(ah, chan);
+		ar9003_hw_do_manual_peak_cal(ah, chan, run_rtt_cal);
 	}
 
 	if (REG_READ(ah, AR_PHY_CL_CAL_CTL) & AR_PHY_CL_CAL_ENABLE) {
@@ -1159,12 +1190,16 @@ skip_tx_iqcal:
 
 	if (run_rtt_cal && caldata) {
 		if (is_reusable) {
-			if (!ath9k_hw_rfbus_req(ah))
+			if (!ath9k_hw_rfbus_req(ah)) {
 				ath_err(ath9k_hw_common(ah),
 					"Could not stop baseband\n");
-			else
+			} else {
 				ar9003_hw_rtt_fill_hist(ah);
 
+				if (test_bit(SW_PKDET_DONE, &caldata->cal_flags))
+					ar9003_hw_rtt_load_hist(ah);
+			}
+
 			ath9k_hw_rfbus_done(ah);
 		}
 
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_rtt.c b/drivers/net/wireless/ath/ath9k/ar9003_rtt.c
index e398c1812977..934418872e8e 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_rtt.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_rtt.c
@@ -118,6 +118,27 @@ void ar9003_hw_rtt_load_hist(struct ath_hw *ah)
 	}
 }
 
+static void ar9003_hw_patch_rtt(struct ath_hw *ah, int index, int chain)
+{
+	int agc, caldac;
+
+	if (!test_bit(SW_PKDET_DONE, &ah->caldata->cal_flags))
+		return;
+
+	if ((index != 5) || (chain >= 2))
+		return;
+
+	agc = REG_READ_FIELD(ah, AR_PHY_65NM_RXRF_AGC(chain),
+			     AR_PHY_65NM_RXRF_AGC_AGC_OVERRIDE);
+	if (!agc)
+		return;
+
+	caldac = ah->caldata->caldac[chain];
+	ah->caldata->rtt_table[chain][index] &= 0xFFFF05FF;
+	caldac = (caldac & 0x20) | ((caldac & 0x1F) << 7);
+	ah->caldata->rtt_table[chain][index] |= (caldac << 4);
+}
+
 static int ar9003_hw_rtt_fill_hist_entry(struct ath_hw *ah, u8 chain, u32 index)
 {
 	u32 val;
@@ -155,6 +176,9 @@ void ar9003_hw_rtt_fill_hist(struct ath_hw *ah)
 		for (i = 0; i < MAX_RTT_TABLE_ENTRY; i++) {
 			ah->caldata->rtt_table[chain][i] =
 				ar9003_hw_rtt_fill_hist_entry(ah, chain, i);
+
+			ar9003_hw_patch_rtt(ah, i, chain);
+
 			ath_dbg(ath9k_hw_common(ah), CALIBRATE,
 				"RTT value at idx %d, chain %d is: 0x%x\n",
 				i, chain, ah->caldata->rtt_table[chain][i]);
@@ -186,11 +210,37 @@ bool ar9003_hw_rtt_restore(struct ath_hw *ah, struct ath9k_channel *chan)
 	if (!ah->caldata)
 		return false;
 
+	if (test_bit(SW_PKDET_DONE, &ah->caldata->cal_flags)) {
+		if (IS_CHAN_2GHZ(chan)){
+			REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(0),
+				      AR_PHY_65NM_RXRF_AGC_AGC2G_CALDAC_OVR,
+				      ah->caldata->caldac[0]);
+			REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(1),
+				      AR_PHY_65NM_RXRF_AGC_AGC2G_CALDAC_OVR,
+				      ah->caldata->caldac[1]);
+		} else {
+			REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(0),
+				      AR_PHY_65NM_RXRF_AGC_AGC5G_CALDAC_OVR,
+				      ah->caldata->caldac[0]);
+			REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(1),
+				      AR_PHY_65NM_RXRF_AGC_AGC5G_CALDAC_OVR,
+				      ah->caldata->caldac[1]);
+		}
+		REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(1),
+			      AR_PHY_65NM_RXRF_AGC_AGC_OVERRIDE, 0x1);
+		REG_RMW_FIELD(ah, AR_PHY_65NM_RXRF_AGC(0),
+			      AR_PHY_65NM_RXRF_AGC_AGC_OVERRIDE, 0x1);
+	}
+
 	if (!test_bit(RTT_DONE, &ah->caldata->cal_flags))
 		return false;
 
 	ar9003_hw_rtt_enable(ah);
-	ar9003_hw_rtt_set_mask(ah, 0x10);
+
+	if (test_bit(SW_PKDET_DONE, &ah->caldata->cal_flags))
+		ar9003_hw_rtt_set_mask(ah, 0x30);
+	else
+		ar9003_hw_rtt_set_mask(ah, 0x10);
 
 	if (!ath9k_hw_rfbus_req(ah)) {
 		ath_err(ath9k_hw_common(ah), "Could not stop baseband\n");
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index e5e927020945..2babf931b459 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -412,6 +412,7 @@ enum ath9k_cal_flags {
 	NFCAL_INTF,
 	TXIQCAL_DONE,
 	TXCLCAL_DONE,
+	SW_PKDET_DONE,
 };
 
 struct ath9k_hw_cal_data {
@@ -422,6 +423,7 @@ struct ath9k_hw_cal_data {
 	int32_t CalValid;
 	int8_t iCoff;
 	int8_t qCoff;
+	u8 caldac[2];
 	u16 small_signal_gain[AR9300_MAX_CHAINS];
 	u32 pa_table[AR9300_MAX_CHAINS][PAPRD_TABLE_SZ];
 	u32 num_measures[AR9300_MAX_CHAINS];
-- 
cgit 


From 60751001e814cd70220fee7868c5a0368bdf984a Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Wed, 11 Sep 2013 19:56:45 +0200
Subject: rt2x00: rt2800lib: fix band selection and LNA PE control for RT3593
 PCIe cards

The band selection and PE control code for the
RT3593 chipsets only handles USB based devices
currently. Due to this limitation RT3593 based
PCIe cards are not working correctly.

On PCIe cards band selection is controlled via
GPIO #8 which is identical to the USB devices.
The LNA PE control is slightly different, all
LNA PEs are controlled by GPIO #4.

Update the code to configure the GPIO_CTRL register
correctly on PCIe devices.

Cc: Steven Liu <steven.liu@mediatek.com>
Cc: JasonYS Cheng <jasonys.cheng@mediatek.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800lib.c | 26 +++++++++++++++++---------
 1 file changed, 17 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 470a7aa11f17..786420c199ca 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3315,29 +3315,37 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
 		rt2800_rfcsr_write(rt2x00dev, 8, 0x80);
 
 	if (rt2x00_rt(rt2x00dev, RT3593)) {
-		if (rt2x00_is_usb(rt2x00dev)) {
-			rt2800_register_read(rt2x00dev, GPIO_CTRL, &reg);
+		rt2800_register_read(rt2x00dev, GPIO_CTRL, &reg);
 
-			/* Band selection. GPIO #8 controls all paths */
+		/* Band selection */
+		if (rt2x00_is_usb(rt2x00dev) ||
+		    rt2x00_is_pcie(rt2x00dev)) {
+			/* GPIO #8 controls all paths */
 			rt2x00_set_field32(&reg, GPIO_CTRL_DIR8, 0);
 			if (rf->channel <= 14)
 				rt2x00_set_field32(&reg, GPIO_CTRL_VAL8, 1);
 			else
 				rt2x00_set_field32(&reg, GPIO_CTRL_VAL8, 0);
+		}
 
+		/* LNA PE control. */
+		if (rt2x00_is_usb(rt2x00dev)) {
+			/* GPIO #4 controls PE0 and PE1,
+			 * GPIO #7 controls PE2
+			 */
 			rt2x00_set_field32(&reg, GPIO_CTRL_DIR4, 0);
 			rt2x00_set_field32(&reg, GPIO_CTRL_DIR7, 0);
 
-			/* LNA PE control.
-			* GPIO #4 controls PE0 and PE1,
-			* GPIO #7 controls PE2
-			*/
 			rt2x00_set_field32(&reg, GPIO_CTRL_VAL4, 1);
 			rt2x00_set_field32(&reg, GPIO_CTRL_VAL7, 1);
-
-			rt2800_register_write(rt2x00dev, GPIO_CTRL, reg);
+		} else if (rt2x00_is_pcie(rt2x00dev)) {
+			/* GPIO #4 controls PE0, PE1 and PE2 */
+			rt2x00_set_field32(&reg, GPIO_CTRL_DIR4, 0);
+			rt2x00_set_field32(&reg, GPIO_CTRL_VAL4, 1);
 		}
 
+		rt2800_register_write(rt2x00dev, GPIO_CTRL, reg);
+
 		/* AGC init */
 		if (rf->channel <= 14)
 			reg = 0x1c + 2 * rt2x00dev->lna_gain;
-- 
cgit 


From 8e70eb8092754fa92a249f0ed1bc40ab7639b850 Mon Sep 17 00:00:00 2001
From: Chris Metcalf <cmetcalf@tilera.com>
Date: Fri, 13 Sep 2013 12:14:09 -0400
Subject: ath9k: mark wmi_event_swba as __packed

The other structures in wmi.h are already marked this way.
Without this marking, we get an unaliged access panic in the tilegx kernel:

Starting stack dump of tid 0, pid 0 (swapper) on cpu 35 at cycle 198675113844
  frame 0: 0xfffffff7103ada90 ath9k_htc_swba+0x120/0x618 [ath9k_htc]
  frame 1: 0xfffffff7103a4b10 ath9k_wmi_event_tasklet+0x1b0/0x270 [ath9k_htc]
  frame 2: 0xfffffff700326570 tasklet_action+0x148/0x298
  [...]

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/wmi.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath9k/wmi.h b/drivers/net/wireless/ath/ath9k/wmi.h
index fde6da619f30..0db37f230018 100644
--- a/drivers/net/wireless/ath/ath9k/wmi.h
+++ b/drivers/net/wireless/ath/ath9k/wmi.h
@@ -39,7 +39,7 @@ struct wmi_fw_version {
 struct wmi_event_swba {
 	__be64 tsf;
 	u8 beacon_pending;
-};
+} __packed;
 
 /*
  * 64 - HTC header - WMI header - 1 / txstatus
-- 
cgit 


From 5952bd806c95f53b6412918c76d4f95d6ebc125e Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Fri, 13 Sep 2013 12:44:27 -0500
Subject: rtlwifi: rtl8192cu: Convert driver to use rtl_process_phyinfo()

Remove routine _rtl92c_process_phyinfo() by using the equivalent routine
in driver rtlwifi.

This change also allows the removal of 5 additional routines from rtl8192cu.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/rtl8192cu/mac.c | 187 +--------------------------
 1 file changed, 2 insertions(+), 185 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c b/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c
index da4f587199ee..393685390f3e 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c
@@ -32,6 +32,7 @@
 #include "../usb.h"
 #include "../ps.h"
 #include "../cam.h"
+#include "../stats.h"
 #include "reg.h"
 #include "def.h"
 #include "phy.h"
@@ -738,16 +739,6 @@ static u8 _rtl92c_evm_db_to_percentage(char value)
 	return ret_val;
 }
 
-static long _rtl92c_translate_todbm(struct ieee80211_hw *hw,
-				     u8 signal_strength_index)
-{
-	long signal_power;
-
-	signal_power = (long)((signal_strength_index + 1) >> 1);
-	signal_power -= 95;
-	return signal_power;
-}
-
 static long _rtl92c_signal_scale_mapping(struct ieee80211_hw *hw,
 		long currsig)
 {
@@ -913,180 +904,6 @@ static void _rtl92c_query_rxphystatus(struct ieee80211_hw *hw,
 			  (hw, total_rssi /= rf_rx_num));
 }
 
-static void _rtl92c_process_ui_rssi(struct ieee80211_hw *hw,
-		struct rtl_stats *pstats)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	struct rtl_phy *rtlphy = &(rtlpriv->phy);
-	u8 rfpath;
-	u32 last_rssi, tmpval;
-
-	if (pstats->packet_toself || pstats->packet_beacon) {
-		rtlpriv->stats.rssi_calculate_cnt++;
-		if (rtlpriv->stats.ui_rssi.total_num++ >=
-		    PHY_RSSI_SLID_WIN_MAX) {
-			rtlpriv->stats.ui_rssi.total_num =
-			    PHY_RSSI_SLID_WIN_MAX;
-			last_rssi =
-			    rtlpriv->stats.ui_rssi.elements[rtlpriv->
-							   stats.ui_rssi.index];
-			rtlpriv->stats.ui_rssi.total_val -= last_rssi;
-		}
-		rtlpriv->stats.ui_rssi.total_val += pstats->signalstrength;
-		rtlpriv->stats.ui_rssi.elements[rtlpriv->stats.ui_rssi.
-					index++] = pstats->signalstrength;
-		if (rtlpriv->stats.ui_rssi.index >= PHY_RSSI_SLID_WIN_MAX)
-			rtlpriv->stats.ui_rssi.index = 0;
-		tmpval = rtlpriv->stats.ui_rssi.total_val /
-		    rtlpriv->stats.ui_rssi.total_num;
-		rtlpriv->stats.signal_strength =
-		    _rtl92c_translate_todbm(hw, (u8) tmpval);
-		pstats->rssi = rtlpriv->stats.signal_strength;
-	}
-	if (!pstats->is_cck && pstats->packet_toself) {
-		for (rfpath = RF90_PATH_A; rfpath < rtlphy->num_total_rfpath;
-		     rfpath++) {
-			if (!rtl8192_phy_check_is_legal_rfpath(hw, rfpath))
-				continue;
-			if (rtlpriv->stats.rx_rssi_percentage[rfpath] == 0) {
-				rtlpriv->stats.rx_rssi_percentage[rfpath] =
-				    pstats->rx_mimo_signalstrength[rfpath];
-			}
-			if (pstats->rx_mimo_signalstrength[rfpath] >
-			    rtlpriv->stats.rx_rssi_percentage[rfpath]) {
-				rtlpriv->stats.rx_rssi_percentage[rfpath] =
-				    ((rtlpriv->stats.
-				      rx_rssi_percentage[rfpath] *
-				      (RX_SMOOTH_FACTOR - 1)) +
-				     (pstats->rx_mimo_signalstrength[rfpath])) /
-				    (RX_SMOOTH_FACTOR);
-
-				rtlpriv->stats.rx_rssi_percentage[rfpath] =
-				    rtlpriv->stats.rx_rssi_percentage[rfpath] +
-				    1;
-			} else {
-				rtlpriv->stats.rx_rssi_percentage[rfpath] =
-				    ((rtlpriv->stats.
-				      rx_rssi_percentage[rfpath] *
-				      (RX_SMOOTH_FACTOR - 1)) +
-				     (pstats->rx_mimo_signalstrength[rfpath])) /
-				    (RX_SMOOTH_FACTOR);
-			}
-		}
-	}
-}
-
-static void _rtl92c_update_rxsignalstatistics(struct ieee80211_hw *hw,
-					       struct rtl_stats *pstats)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	int weighting = 0;
-
-	if (rtlpriv->stats.recv_signal_power == 0)
-		rtlpriv->stats.recv_signal_power = pstats->recvsignalpower;
-	if (pstats->recvsignalpower > rtlpriv->stats.recv_signal_power)
-		weighting = 5;
-	else if (pstats->recvsignalpower < rtlpriv->stats.recv_signal_power)
-		weighting = (-5);
-	rtlpriv->stats.recv_signal_power =
-	    (rtlpriv->stats.recv_signal_power * 5 +
-	     pstats->recvsignalpower + weighting) / 6;
-}
-
-static void _rtl92c_process_pwdb(struct ieee80211_hw *hw,
-		struct rtl_stats *pstats)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	struct rtl_mac *mac = rtl_mac(rtl_priv(hw));
-	long undec_sm_pwdb = 0;
-
-	if (mac->opmode == NL80211_IFTYPE_ADHOC) {
-		return;
-	} else {
-		undec_sm_pwdb = rtlpriv->dm.undec_sm_pwdb;
-	}
-	if (pstats->packet_toself || pstats->packet_beacon) {
-		if (undec_sm_pwdb < 0)
-			undec_sm_pwdb = pstats->rx_pwdb_all;
-		if (pstats->rx_pwdb_all > (u32) undec_sm_pwdb) {
-			undec_sm_pwdb = (((undec_sm_pwdb) *
-			      (RX_SMOOTH_FACTOR - 1)) +
-			     (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
-			undec_sm_pwdb += 1;
-		} else {
-			undec_sm_pwdb = (((undec_sm_pwdb) *
-			      (RX_SMOOTH_FACTOR - 1)) +
-			     (pstats->rx_pwdb_all)) / (RX_SMOOTH_FACTOR);
-		}
-		rtlpriv->dm.undec_sm_pwdb = undec_sm_pwdb;
-		_rtl92c_update_rxsignalstatistics(hw, pstats);
-	}
-}
-
-static void _rtl92c_process_LINK_Q(struct ieee80211_hw *hw,
-					     struct rtl_stats *pstats)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	u32 last_evm = 0, n_stream, tmpval;
-
-	if (pstats->signalquality != 0) {
-		if (pstats->packet_toself || pstats->packet_beacon) {
-			if (rtlpriv->stats.LINK_Q.total_num++ >=
-			    PHY_LINKQUALITY_SLID_WIN_MAX) {
-				rtlpriv->stats.LINK_Q.total_num =
-				    PHY_LINKQUALITY_SLID_WIN_MAX;
-				last_evm =
-				    rtlpriv->stats.LINK_Q.elements
-				    [rtlpriv->stats.LINK_Q.index];
-				rtlpriv->stats.LINK_Q.total_val -=
-				    last_evm;
-			}
-			rtlpriv->stats.LINK_Q.total_val +=
-			    pstats->signalquality;
-			rtlpriv->stats.LINK_Q.elements
-			   [rtlpriv->stats.LINK_Q.index++] =
-			    pstats->signalquality;
-			if (rtlpriv->stats.LINK_Q.index >=
-			    PHY_LINKQUALITY_SLID_WIN_MAX)
-				rtlpriv->stats.LINK_Q.index = 0;
-			tmpval = rtlpriv->stats.LINK_Q.total_val /
-			    rtlpriv->stats.LINK_Q.total_num;
-			rtlpriv->stats.signal_quality = tmpval;
-			rtlpriv->stats.last_sigstrength_inpercent = tmpval;
-			for (n_stream = 0; n_stream < 2;
-			     n_stream++) {
-				if (pstats->RX_SIGQ[n_stream] != -1) {
-					if (!rtlpriv->stats.RX_EVM[n_stream]) {
-						rtlpriv->stats.RX_EVM[n_stream]
-						 = pstats->RX_SIGQ[n_stream];
-					}
-					rtlpriv->stats.RX_EVM[n_stream] =
-					    ((rtlpriv->stats.RX_EVM
-					    [n_stream] *
-					    (RX_SMOOTH_FACTOR - 1)) +
-					    (pstats->RX_SIGQ
-					    [n_stream] * 1)) /
-					    (RX_SMOOTH_FACTOR);
-				}
-			}
-		}
-	} else {
-		;
-	}
-}
-
-static void _rtl92c_process_phyinfo(struct ieee80211_hw *hw,
-				     u8 *buffer,
-				     struct rtl_stats *pcurrent_stats)
-{
-	if (!pcurrent_stats->packet_matchbssid &&
-	    !pcurrent_stats->packet_beacon)
-		return;
-	_rtl92c_process_ui_rssi(hw, pcurrent_stats);
-	_rtl92c_process_pwdb(hw, pcurrent_stats);
-	_rtl92c_process_LINK_Q(hw, pcurrent_stats);
-}
-
 void rtl92c_translate_rx_signal_stuff(struct ieee80211_hw *hw,
 					       struct sk_buff *skb,
 					       struct rtl_stats *pstats,
@@ -1123,5 +940,5 @@ void rtl92c_translate_rx_signal_stuff(struct ieee80211_hw *hw,
 	_rtl92c_query_rxphystatus(hw, pstats, pdesc, p_drvinfo,
 				   packet_matchbssid, packet_toself,
 				   packet_beacon);
-	_rtl92c_process_phyinfo(hw, tmp_buf, pstats);
+	rtl_process_phyinfo(hw, tmp_buf, pstats);
 }
-- 
cgit 


From 8a5b7ab36b46615874da3764b99c9d26c1e6750d Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 16 Sep 2013 10:36:59 +0530
Subject: ath9k: Fix NF calibration for single stream cards

Rather than using the chip ID to read only chain-0 CCA
registers and avoid reading chain-1, use the RX chainmask
instead. There are some 1-stream PCI devices based on AR9287
such as TL-WN751ND. Improper NF calibration might result in
DMA errors/timeouts.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ar9002_phy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar9002_phy.c b/drivers/net/wireless/ath/ath9k/ar9002_phy.c
index 7a5569b679b2..17970d49d858 100644
--- a/drivers/net/wireless/ath/ath9k/ar9002_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_phy.c
@@ -485,7 +485,7 @@ static void ar9002_hw_do_getnf(struct ath_hw *ah,
 	if (IS_CHAN_HT40(ah->curchan))
 		nfarray[3] = sign_extend32(nf, 8);
 
-	if (AR_SREV_9285(ah) || AR_SREV_9271(ah))
+	if (!(ah->rxchainmask & BIT(1)))
 		return;
 
 	nf = MS(REG_READ(ah, AR_PHY_CH1_CCA), AR9280_PHY_CH1_MINCCA_PWR);
-- 
cgit 


From c6cc47b101c547c328cae06c2d8813a8e69549bf Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 16 Sep 2013 10:37:00 +0530
Subject: ath9k: Handle FATAL interrupts correctly

When a FATAL interrupt is received, a full chip reset is
required, which is done in the main tasklet. But since
the reset routine is scheduled as a work item, make sure
that interrupts are not enabled in the tasklet before the
reset is done.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/main.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index e4f65900132d..cdb3b1e10b95 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -362,6 +362,13 @@ void ath9k_tasklet(unsigned long data)
 			type = RESET_TYPE_BB_WATCHDOG;
 
 		ath9k_queue_reset(sc, type);
+
+		/*
+		 * Increment the ref. counter here so that
+		 * interrupts are enabled in the reset routine.
+		 */
+		atomic_inc(&ah->intr_ref_cnt);
+		ath_dbg(common, ANY, "FATAL: Skipping interrupts\n");
 		goto out;
 	}
 
@@ -400,10 +407,9 @@ void ath9k_tasklet(unsigned long data)
 
 	ath9k_btcoex_handle_interrupt(sc, status);
 
-out:
 	/* re-enable hardware interrupt */
 	ath9k_hw_enable_interrupts(ah);
-
+out:
 	spin_unlock(&sc->sc_pcu_lock);
 	ath9k_ps_restore(sc);
 }
-- 
cgit 


From 551ed409690d05a3af7a330b188501fd1593e6af Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 16 Sep 2013 10:37:01 +0530
Subject: ath9k: Remove incorrect diversity initialization

Fast antenna diversity is required only for single chain
chips and the diversity initialization is done in the
per-family board setup routines. Enabling of diversity
should be done based on the calibrated EEPROM/OTP data,
doing it for all chips is incorrect.

Remove the code that sets the fast_div bit for all cards, since
the documentation for the AR_PHY_CCK_DETECT register says:

reg 642: sig_detect_cck
enable_ant_fast_div : Only used for single chain chips.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ar5008_phy.c | 3 ---
 drivers/net/wireless/ath/ath9k/ar9003_phy.c | 3 ---
 2 files changed, 6 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar5008_phy.c b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
index 9e4e2a693774..cb6435e7c6f5 100644
--- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
@@ -631,9 +631,6 @@ static void ar5008_hw_override_ini(struct ath_hw *ah,
 		REG_WRITE(ah, AR_PCU_MISC_MODE2, val);
 	}
 
-	REG_SET_BIT(ah, AR_PHY_CCK_DETECT,
-		    AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV);
-
 	if (AR_SREV_9280_20_OR_LATER(ah))
 		return;
 	/*
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index ec37213fb765..0131ba2f5d51 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -632,9 +632,6 @@ static void ar9003_hw_override_ini(struct ath_hw *ah)
 	       AR_PCU_MISC_MODE2_CFP_IGNORE;
 	REG_WRITE(ah, AR_PCU_MISC_MODE2, val);
 
-	REG_SET_BIT(ah, AR_PHY_CCK_DETECT,
-		    AR_PHY_CCK_DETECT_BB_ENABLE_ANT_FAST_DIV);
-
 	if (AR_SREV_9462(ah) || AR_SREV_9565(ah)) {
 		REG_WRITE(ah, AR_GLB_SWREG_DISCONT_MODE,
 			  AR_GLB_SWREG_DISCONT_EN_BT_WLAN);
-- 
cgit 


From 3a1ea9fd935139027e60157fa5d5bf8555414de3 Mon Sep 17 00:00:00 2001
From: Catalin Iacob <iacobcatalin@gmail.com>
Date: Sun, 22 Sep 2013 11:06:26 +0200
Subject: rtlwifi: remove duplicate declarations and macros in headers

This patch brings no functional change.

There are still duplicate macros across the rtlwifi directory, for example
IQK_DELAY_TIME is defined multiple times, sometimes with different values,
this patch only removes duplicates within the same header file.

Signed-off-by: Catalin Iacob <iacobcatalin@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/base.h                |  1 -
 drivers/net/wireless/rtlwifi/rtl8192c/phy_common.h |  2 --
 drivers/net/wireless/rtlwifi/rtl8192ce/def.h       |  2 --
 drivers/net/wireless/rtlwifi/rtl8192ce/phy.h       |  3 ---
 drivers/net/wireless/rtlwifi/rtl8192ce/reg.h       | 20 --------------------
 drivers/net/wireless/rtlwifi/rtl8192de/phy.h       |  3 ---
 drivers/net/wireless/rtlwifi/rtl8192se/reg.h       |  5 -----
 drivers/net/wireless/rtlwifi/wifi.h                |  2 --
 8 files changed, 38 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/base.h b/drivers/net/wireless/rtlwifi/base.h
index 0e5fe0902daf..c07f114e7d1b 100644
--- a/drivers/net/wireless/rtlwifi/base.h
+++ b/drivers/net/wireless/rtlwifi/base.h
@@ -114,7 +114,6 @@ void rtl_init_rfkill(struct ieee80211_hw *hw);
 void rtl_deinit_rfkill(struct ieee80211_hw *hw);
 
 void rtl_beacon_statistic(struct ieee80211_hw *hw, struct sk_buff *skb);
-void rtl_watch_dog_timer_callback(unsigned long data);
 void rtl_deinit_deferred_work(struct ieee80211_hw *hw);
 
 bool rtl_action_proc(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx);
diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.h b/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.h
index cec10d696492..24957e2a8370 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.h
@@ -39,9 +39,7 @@
 #define RT_CANNOT_IO(hw)		false
 #define HIGHPOWER_RADIOA_ARRAYLEN	22
 
-#define IQK_ADDA_REG_NUM		16
 #define MAX_TOLERANCE			5
-#define	IQK_DELAY_TIME			1
 
 #define	APK_BB_REG_NUM			5
 #define	APK_AFE_REG_NUM			16
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/def.h b/drivers/net/wireless/rtlwifi/rtl8192ce/def.h
index 3cfa1bb0f476..fa24de43ce79 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/def.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/def.h
@@ -152,8 +152,6 @@ enum version_8192c {
 #define IS_VENDOR_UMC_A_CUT(version)	((IS_CHIP_VENDOR_UMC(version)) ? \
 	((GET_CVID_CUT_VERSION(version)) ? false : true) : false)
 #define IS_CHIP_VER_B(version)  ((version & CHIP_VER_B) ? true : false)
-#define IS_VENDOR_UMC_A_CUT(version)	((IS_CHIP_VENDOR_UMC(version)) ? \
-	((GET_CVID_CUT_VERSION(version)) ? false : true) : false)
 #define IS_92C_SERIAL(version)  ((version & CHIP_92C_BITMASK) ? true : false)
 #define IS_CHIP_VENDOR_UMC(version)		\
 	((version & CHIP_VENDOR_UMC) ? true : false)
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/phy.h b/drivers/net/wireless/rtlwifi/rtl8192ce/phy.h
index d5e3b704f930..80a0893efb4e 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/phy.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/phy.h
@@ -39,9 +39,7 @@
 #define RT_CANNOT_IO(hw)		false
 #define HIGHPOWER_RADIOA_ARRAYLEN	22
 
-#define IQK_ADDA_REG_NUM		16
 #define MAX_TOLERANCE			5
-#define	IQK_DELAY_TIME			1
 
 #define	APK_BB_REG_NUM			5
 #define	APK_AFE_REG_NUM			16
@@ -226,7 +224,6 @@ bool rtl92c_phy_config_rf_with_headerfile(struct ieee80211_hw *hw,
 					  enum radio_path rfpath);
 bool rtl8192_phy_check_is_legal_rfpath(struct ieee80211_hw *hw,
 					      u32 rfpath);
-bool rtl92c_phy_set_io_cmd(struct ieee80211_hw *hw, enum io_type iotype);
 bool rtl92ce_phy_set_rf_power_state(struct ieee80211_hw *hw,
 					  enum rf_pwrstate rfpwr_state);
 void rtl92ce_phy_set_rf_on(struct ieee80211_hw *hw);
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/reg.h b/drivers/net/wireless/rtlwifi/rtl8192ce/reg.h
index bd4aef74c056..8922ecb47ad2 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/reg.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/reg.h
@@ -560,7 +560,6 @@
 #define	EEPROM_DEFAULT_TXPOWERLEVEL		0x22
 #define	EEPROM_DEFAULT_HT40_2SDIFF		0x0
 #define EEPROM_DEFAULT_HT20_DIFF		2
-#define	EEPROM_DEFAULT_LEGACYHTTXPOWERDIFF	0x3
 #define EEPROM_DEFAULT_HT40_PWRMAXOFFSET	0
 #define EEPROM_DEFAULT_HT20_PWRMAXOFFSET	0
 
@@ -639,17 +638,8 @@
 
 #define	EEPROM_TXPWR_GROUP			0x6F
 
-#define EEPROM_TSSI_A				0x76
-#define EEPROM_TSSI_B				0x77
-#define EEPROM_THERMAL_METER			0x78
-
 #define EEPROM_CHANNELPLAN			0x75
 
-#define RF_OPTION1				0x79
-#define RF_OPTION2				0x7A
-#define RF_OPTION3				0x7B
-#define RF_OPTION4				0x7C
-
 #define	STOPBECON				BIT(6)
 #define	STOPHIGHT				BIT(5)
 #define	STOPMGT					BIT(4)
@@ -689,13 +679,6 @@
 #define RSV_CTRL				0x001C
 #define RD_CTRL					0x0524
 
-#define REG_USB_INFO				0xFE17
-#define REG_USB_SPECIAL_OPTION			0xFE55
-
-#define REG_USB_DMA_AGG_TO			0xFE5B
-#define REG_USB_AGG_TO				0xFE5C
-#define REG_USB_AGG_TH				0xFE5D
-
 #define REG_USB_VID				0xFE60
 #define REG_USB_PID				0xFE62
 #define REG_USB_OPTIONAL			0xFE64
@@ -1196,9 +1179,6 @@
 #define POLLING_LLT_THRESHOLD			20
 #define POLLING_READY_TIMEOUT_COUNT		1000
 
-#define	MAX_MSS_DENSITY_2T			0x13
-#define	MAX_MSS_DENSITY_1T			0x0A
-
 #define EPROM_CMD_OPERATING_MODE_MASK	((1<<7)|(1<<6))
 #define EPROM_CMD_CONFIG			0x3
 #define EPROM_CMD_LOAD				1
diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/phy.h b/drivers/net/wireless/rtlwifi/rtl8192de/phy.h
index f074952bf25c..a66232efcbf6 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192de/phy.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192de/phy.h
@@ -39,9 +39,7 @@
 #define RT_CANNOT_IO(hw)			false
 #define HIGHPOWER_RADIOA_ARRAYLEN		22
 
-#define IQK_ADDA_REG_NUM			16
 #define MAX_TOLERANCE				5
-#define	IQK_DELAY_TIME				1
 
 #define	APK_BB_REG_NUM				5
 #define	APK_AFE_REG_NUM				16
@@ -173,6 +171,5 @@ void rtl92d_acquire_cckandrw_pagea_ctl(struct ieee80211_hw *hw,
 				       unsigned long *flag);
 u8 rtl92d_get_rightchnlplace_for_iqk(u8 chnl);
 void rtl92d_phy_reload_iqk_setting(struct ieee80211_hw *hw, u8 channel);
-void rtl92d_phy_iq_calibrate(struct ieee80211_hw *hw);
 
 #endif
diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/reg.h b/drivers/net/wireless/rtlwifi/rtl8192se/reg.h
index 84d1181795b8..c81c83591940 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192se/reg.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192se/reg.h
@@ -425,14 +425,9 @@
 #define	EXT_IMEM_CODE_DONE			BIT(2)
 #define	IMEM_CHK_RPT				BIT(1)
 #define	IMEM_CODE_DONE				BIT(0)
-#define	IMEM_CODE_DONE				BIT(0)
-#define	IMEM_CHK_RPT				BIT(1)
 #define	EMEM_CODE_DONE				BIT(2)
 #define	EMEM_CHK_RPT				BIT(3)
-#define	DMEM_CODE_DONE				BIT(4)
 #define	IMEM_RDY				BIT(5)
-#define	BASECHG					BIT(6)
-#define	FWRDY					BIT(7)
 #define	LOAD_FW_READY				(IMEM_CODE_DONE | \
 						IMEM_CHK_RPT | \
 						EMEM_CODE_DONE | \
diff --git a/drivers/net/wireless/rtlwifi/wifi.h b/drivers/net/wireless/rtlwifi/wifi.h
index cc03e7c87cbe..96763dcff5ae 100644
--- a/drivers/net/wireless/rtlwifi/wifi.h
+++ b/drivers/net/wireless/rtlwifi/wifi.h
@@ -192,8 +192,6 @@ enum hardware_type {
 (IS_HARDWARE_TYPE_8192DE(rtlhal) || IS_HARDWARE_TYPE_8192DU(rtlhal))
 #define	IS_HARDWARE_TYPE_8723(rtlhal)			\
 (IS_HARDWARE_TYPE_8723E(rtlhal) || IS_HARDWARE_TYPE_8723U(rtlhal))
-#define IS_HARDWARE_TYPE_8723U(rtlhal)			\
-	(rtlhal->hw_type == HARDWARE_TYPE_RTL8723U)
 
 #define RX_HAL_IS_CCK_RATE(_pdesc)\
 	(_pdesc->rxmcs == DESC92_RATE1M ||		\
-- 
cgit 


From c8820cf2afbded8e75575dcafd6c99aeea06df0c Mon Sep 17 00:00:00 2001
From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Sun, 22 Sep 2013 22:22:46 +0200
Subject: wireless: rtlwifi: Replace variable with a break

This patch removes the variable continual, and change the while loop
to break when efuse_data == 0xFF.

Tested by compilation only.

CC: Joe Perches <joe@perches.com>
Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/efuse.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/efuse.c b/drivers/net/wireless/rtlwifi/efuse.c
index 838a1ed3f194..ae13fb94b2e8 100644
--- a/drivers/net/wireless/rtlwifi/efuse.c
+++ b/drivers/net/wireless/rtlwifi/efuse.c
@@ -1203,20 +1203,18 @@ static void efuse_power_switch(struct ieee80211_hw *hw, u8 write, u8 pwrstate)
 
 static u16 efuse_get_current_size(struct ieee80211_hw *hw)
 {
-	int continual = true;
 	u16 efuse_addr = 0;
 	u8 hworden;
 	u8 efuse_data, word_cnts;
 
-	while (continual && efuse_one_byte_read(hw, efuse_addr, &efuse_data)
-	       && (efuse_addr < EFUSE_MAX_SIZE)) {
-		if (efuse_data != 0xFF) {
-			hworden = efuse_data & 0x0F;
-			word_cnts = efuse_calculate_word_cnts(hworden);
-			efuse_addr = efuse_addr + (word_cnts * 2) + 1;
-		} else {
-			continual = false;
-		}
+	while (efuse_one_byte_read(hw, efuse_addr, &efuse_data) &&
+	       efuse_addr < EFUSE_MAX_SIZE) {
+		if (efuse_data == 0xFF)
+			break;
+
+		hworden = efuse_data & 0x0F;
+		word_cnts = efuse_calculate_word_cnts(hworden);
+		efuse_addr = efuse_addr + (word_cnts * 2) + 1;
 	}
 
 	return efuse_addr;
-- 
cgit 


From 772eb433357704ec3d6e0daa727d9ec3e85f50c1 Mon Sep 17 00:00:00 2001
From: Kevin Lo <kevlo@kevlo.org>
Date: Wed, 18 Sep 2013 16:22:44 +0800
Subject: rt2x00: Fix rf register for RT3070

Fix RT3070 chip RF initial value to be similar to the latest Ralink vendor
driver.

Tested on Asus N13 usb wifi dongle.

Signed-off-by: Kevin Lo <kevlo@kevlo.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800lib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 786420c199ca..f4149782e501 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -5993,7 +5993,7 @@ static void rt2800_init_rfcsr_30xx(struct rt2x00_dev *rt2x00dev)
 	rt2800_rfcsr_write(rt2x00dev, 20, 0xba);
 	rt2800_rfcsr_write(rt2x00dev, 21, 0xdb);
 	rt2800_rfcsr_write(rt2x00dev, 24, 0x16);
-	rt2800_rfcsr_write(rt2x00dev, 25, 0x01);
+	rt2800_rfcsr_write(rt2x00dev, 25, 0x03);
 	rt2800_rfcsr_write(rt2x00dev, 29, 0x1f);
 
 	if (rt2x00_rt_rev_lt(rt2x00dev, RT3070, REV_RT3070F)) {
-- 
cgit 


From 7d1db4b242134bb4c7170f4c15491980ac064ac3 Mon Sep 17 00:00:00 2001
From: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Date: Thu, 26 Sep 2013 15:52:13 -0400
Subject: selinux: Use kmemdup instead of kmalloc + memcpy

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
---
 security/selinux/xfrm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/security/selinux/xfrm.c b/security/selinux/xfrm.c
index 425b9f91d755..a91d205ec0c6 100644
--- a/security/selinux/xfrm.c
+++ b/security/selinux/xfrm.c
@@ -268,10 +268,10 @@ int selinux_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx,
 	if (!old_ctx)
 		return 0;
 
-	new_ctx = kmalloc(sizeof(*old_ctx) + old_ctx->ctx_len, GFP_ATOMIC);
+	new_ctx = kmemdup(old_ctx, sizeof(*old_ctx) + old_ctx->ctx_len,
+			  GFP_ATOMIC);
 	if (!new_ctx)
 		return -ENOMEM;
-	memcpy(new_ctx, old_ctx, sizeof(*old_ctx) + old_ctx->ctx_len);
 	atomic_inc(&selinux_xfrm_refcount);
 	*new_ctxp = new_ctx;
 
-- 
cgit 


From 7863c054d1b4fd35f76c13e2e918f7f483fe48f4 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:06 +0200
Subject: net: use lists as arguments instead of bool upper

Currently we make use of bool upper when we want to specify if we want to
work with upper/lower list. It's, however, harder to read, debug and
occupies a lot more code.

Fix this by just passing the correct upper/lower_dev_list list_head pointer
instead of bool upper, and work internally with it.

CC: "David S. Miller" <davem@davemloft.net>
CC: Eric Dumazet <edumazet@google.com>
CC: Jiri Pirko <jiri@resnulli.us>
CC: Alexander Duyck <alexander.h.duyck@intel.com>
CC: Cong Wang <amwang@redhat.com>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/dev.c | 54 ++++++++++++++++++++++--------------------------------
 1 file changed, 22 insertions(+), 32 deletions(-)

diff --git a/net/core/dev.c b/net/core/dev.c
index 5c713f2239cc..9be79377a0f3 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4385,12 +4385,9 @@ struct netdev_adjacent {
 
 static struct netdev_adjacent *__netdev_find_adj(struct net_device *dev,
 						 struct net_device *adj_dev,
-						 bool upper)
+						 struct list_head *dev_list)
 {
 	struct netdev_adjacent *adj;
-	struct list_head *dev_list;
-
-	dev_list = upper ? &dev->upper_dev_list : &dev->lower_dev_list;
 
 	list_for_each_entry(adj, dev_list, list) {
 		if (adj->dev == adj_dev)
@@ -4402,13 +4399,13 @@ static struct netdev_adjacent *__netdev_find_adj(struct net_device *dev,
 static inline struct netdev_adjacent *__netdev_find_upper(struct net_device *dev,
 							  struct net_device *udev)
 {
-	return __netdev_find_adj(dev, udev, true);
+	return __netdev_find_adj(dev, udev, &dev->upper_dev_list);
 }
 
 static inline struct netdev_adjacent *__netdev_find_lower(struct net_device *dev,
 							  struct net_device *ldev)
 {
-	return __netdev_find_adj(dev, ldev, false);
+	return __netdev_find_adj(dev, ldev, &dev->lower_dev_list);
 }
 
 /**
@@ -4514,12 +4511,12 @@ EXPORT_SYMBOL(netdev_master_upper_dev_get_rcu);
 
 static int __netdev_adjacent_dev_insert(struct net_device *dev,
 					struct net_device *adj_dev,
-					bool neighbour, bool master,
-					bool upper)
+					struct list_head *dev_list,
+					bool neighbour, bool master)
 {
 	struct netdev_adjacent *adj;
 
-	adj = __netdev_find_adj(dev, adj_dev, upper);
+	adj = __netdev_find_adj(dev, adj_dev, dev_list);
 
 	if (adj) {
 		BUG_ON(neighbour);
@@ -4538,19 +4535,14 @@ static int __netdev_adjacent_dev_insert(struct net_device *dev,
 
 	dev_hold(adj_dev);
 	pr_debug("dev_hold for %s, because of %s link added from %s to %s\n",
-		 adj_dev->name, upper ? "upper" : "lower", dev->name,
-		 adj_dev->name);
+		 adj_dev->name, dev_list == &dev->upper_dev_list ?
+		 "upper" : "lower", dev->name, adj_dev->name);
 
-	if (!upper) {
-		list_add_tail_rcu(&adj->list, &dev->lower_dev_list);
-		return 0;
-	}
-
-	/* Ensure that master upper link is always the first item in list. */
+	/* Ensure that master link is always the first item in list. */
 	if (master)
-		list_add_rcu(&adj->list, &dev->upper_dev_list);
+		list_add_rcu(&adj->list, dev_list);
 	else
-		list_add_tail_rcu(&adj->list, &dev->upper_dev_list);
+		list_add_tail_rcu(&adj->list, dev_list);
 
 	return 0;
 }
@@ -4559,27 +4551,25 @@ static inline int __netdev_upper_dev_insert(struct net_device *dev,
 					    struct net_device *udev,
 					    bool master, bool neighbour)
 {
-	return __netdev_adjacent_dev_insert(dev, udev, neighbour, master,
-					    true);
+	return __netdev_adjacent_dev_insert(dev, udev, &dev->upper_dev_list,
+					    neighbour, master);
 }
 
 static inline int __netdev_lower_dev_insert(struct net_device *dev,
 					    struct net_device *ldev,
 					    bool neighbour)
 {
-	return __netdev_adjacent_dev_insert(dev, ldev, neighbour, false,
-					    false);
+	return __netdev_adjacent_dev_insert(dev, ldev, &dev->lower_dev_list,
+					    neighbour, false);
 }
 
 void __netdev_adjacent_dev_remove(struct net_device *dev,
-				  struct net_device *adj_dev, bool upper)
+				  struct net_device *adj_dev,
+				  struct list_head *dev_list)
 {
 	struct netdev_adjacent *adj;
 
-	if (upper)
-		adj = __netdev_find_upper(dev, adj_dev);
-	else
-		adj = __netdev_find_lower(dev, adj_dev);
+	adj = __netdev_find_adj(dev, adj_dev, dev_list);
 
 	if (!adj)
 		BUG();
@@ -4591,8 +4581,8 @@ void __netdev_adjacent_dev_remove(struct net_device *dev,
 
 	list_del_rcu(&adj->list);
 	pr_debug("dev_put for %s, because of %s link removed from %s to %s\n",
-		 adj_dev->name, upper ? "upper" : "lower", dev->name,
-		 adj_dev->name);
+		 adj_dev->name, dev_list == &dev->upper_dev_list ?
+		 "upper" : "lower", dev->name, adj_dev->name);
 	dev_put(adj_dev);
 	kfree_rcu(adj, rcu);
 }
@@ -4600,13 +4590,13 @@ void __netdev_adjacent_dev_remove(struct net_device *dev,
 static inline void __netdev_upper_dev_remove(struct net_device *dev,
 					     struct net_device *udev)
 {
-	return __netdev_adjacent_dev_remove(dev, udev, true);
+	return __netdev_adjacent_dev_remove(dev, udev, &dev->upper_dev_list);
 }
 
 static inline void __netdev_lower_dev_remove(struct net_device *dev,
 					     struct net_device *ldev)
 {
-	return __netdev_adjacent_dev_remove(dev, ldev, false);
+	return __netdev_adjacent_dev_remove(dev, ldev, &dev->lower_dev_list);
 }
 
 int __netdev_adjacent_dev_insert_link(struct net_device *dev,
-- 
cgit 


From 2f268f129c2d1a05d297fe3ee34d393f862d2b22 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:07 +0200
Subject: net: add adj_list to save only neighbours

Currently, we distinguish neighbours (first-level linked devices) from
non-neighbours by the neighbour bool in the netdev_adjacent. This could be
quite time-consuming in case we would like to traverse *only* through
neighbours - cause we'd have to traverse through all devices and check for
this flag, and in a (quite common) scenario where we have lots of vlans on
top of bridge, which is on top of a bond - the bonding would have to go
through all those vlans to get its upper neighbour linked devices.

This situation is really unpleasant, cause there are already a lot of cases
when a device with slaves needs to go through them in hot path.

To fix this, introduce a new upper/lower device lists structure -
adj_list, which contains only the neighbours. It works always in
pair with the all_adj_list structure (renamed from upper/lower_dev_list),
i.e. both of them contain the same links, only that all_adj_list contains
also non-neighbour device links. It's really a small change visible,
currently, only for __netdev_adjacent_dev_insert/remove(), and doesn't
change the main linked logic at all.

Also, add some comments a fix a name collision in
netdev_for_each_upper_dev_rcu() and rework the naming by the following
rules:

netdev_(all_)(upper|lower)_*

If "all_" is present, then we work with the whole list of upper/lower
devices, otherwise - only with direct neighbours. Uninline functions - to
get better stack traces.

CC: "David S. Miller" <davem@davemloft.net>
CC: Eric Dumazet <edumazet@google.com>
CC: Jiri Pirko <jiri@resnulli.us>
CC: Alexander Duyck <alexander.h.duyck@intel.com>
CC: Cong Wang <amwang@redhat.com>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_alb.c  |   2 +-
 drivers/net/bonding/bond_main.c |  10 +-
 include/linux/netdevice.h       |  28 ++++--
 net/core/dev.c                  | 203 ++++++++++++++++++++--------------------
 4 files changed, 129 insertions(+), 114 deletions(-)

diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index f428ef574372..8524e33e6754 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -1019,7 +1019,7 @@ static void alb_send_learning_packets(struct slave *slave, u8 mac_addr[])
 
 	/* loop through vlans and send one packet for each */
 	rcu_read_lock();
-	netdev_for_each_upper_dev_rcu(bond->dev, upper, iter) {
+	netdev_for_each_all_upper_dev_rcu(bond->dev, upper, iter) {
 		if (upper->priv_flags & IFF_802_1Q_VLAN)
 			alb_send_lp_vid(slave, mac_addr,
 					vlan_dev_vlan_id(upper));
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 55bbb8b8200c..91c4ab8913b1 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2267,7 +2267,7 @@ static bool bond_has_this_ip(struct bonding *bond, __be32 ip)
 		return true;
 
 	rcu_read_lock();
-	netdev_for_each_upper_dev_rcu(bond->dev, upper, iter) {
+	netdev_for_each_all_upper_dev_rcu(bond->dev, upper, iter) {
 		if (ip == bond_confirm_addr(upper, 0, ip)) {
 			ret = true;
 			break;
@@ -2342,10 +2342,12 @@ static void bond_arp_send_all(struct bonding *bond, struct slave *slave)
 		 *
 		 * TODO: QinQ?
 		 */
-		netdev_for_each_upper_dev_rcu(bond->dev, vlan_upper, vlan_iter) {
+		netdev_for_each_all_upper_dev_rcu(bond->dev, vlan_upper,
+						  vlan_iter) {
 			if (!is_vlan_dev(vlan_upper))
 				continue;
-			netdev_for_each_upper_dev_rcu(vlan_upper, upper, iter) {
+			netdev_for_each_all_upper_dev_rcu(vlan_upper, upper,
+							  iter) {
 				if (upper == rt->dst.dev) {
 					vlan_id = vlan_dev_vlan_id(vlan_upper);
 					rcu_read_unlock();
@@ -2358,7 +2360,7 @@ static void bond_arp_send_all(struct bonding *bond, struct slave *slave)
 		 * our upper vlans, then just search for any dev that
 		 * matches, and in case it's a vlan - save the id
 		 */
-		netdev_for_each_upper_dev_rcu(bond->dev, upper, iter) {
+		netdev_for_each_all_upper_dev_rcu(bond->dev, upper, iter) {
 			if (upper == rt->dst.dev) {
 				/* if it's a vlan - get its VID */
 				if (is_vlan_dev(upper))
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 3de49aca4519..514045c704a8 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1143,8 +1143,18 @@ struct net_device {
 	struct list_head	dev_list;
 	struct list_head	napi_list;
 	struct list_head	unreg_list;
-	struct list_head	upper_dev_list; /* List of upper devices */
-	struct list_head	lower_dev_list;
+
+	/* directly linked devices, like slaves for bonding */
+	struct {
+		struct list_head upper;
+		struct list_head lower;
+	} adj_list;
+
+	/* all linked devices, *including* neighbours */
+	struct {
+		struct list_head upper;
+		struct list_head lower;
+	} all_adj_list;
 
 
 	/* currently active device features */
@@ -2813,15 +2823,15 @@ extern int		bpf_jit_enable;
 extern bool netdev_has_upper_dev(struct net_device *dev,
 				 struct net_device *upper_dev);
 extern bool netdev_has_any_upper_dev(struct net_device *dev);
-extern struct net_device *netdev_upper_get_next_dev_rcu(struct net_device *dev,
-							struct list_head **iter);
+extern struct net_device *netdev_all_upper_get_next_dev_rcu(struct net_device *dev,
+							    struct list_head **iter);
 
 /* iterate through upper list, must be called under RCU read lock */
-#define netdev_for_each_upper_dev_rcu(dev, upper, iter) \
-	for (iter = &(dev)->upper_dev_list, \
-	     upper = netdev_upper_get_next_dev_rcu(dev, &(iter)); \
-	     upper; \
-	     upper = netdev_upper_get_next_dev_rcu(dev, &(iter)))
+#define netdev_for_each_all_upper_dev_rcu(dev, updev, iter) \
+	for (iter = &(dev)->all_adj_list.upper, \
+	     updev = netdev_all_upper_get_next_dev_rcu(dev, &(iter)); \
+	     updev; \
+	     updev = netdev_all_upper_get_next_dev_rcu(dev, &(iter)))
 
 extern struct net_device *netdev_master_upper_dev_get(struct net_device *dev);
 extern struct net_device *netdev_master_upper_dev_get_rcu(struct net_device *dev);
diff --git a/net/core/dev.c b/net/core/dev.c
index 9be79377a0f3..9a395e03da74 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4373,9 +4373,6 @@ struct netdev_adjacent {
 	/* upper master flag, there can only be one master device per list */
 	bool master;
 
-	/* indicates that this dev is our first-level lower/upper device */
-	bool neighbour;
-
 	/* counter for the number of times this device was added to us */
 	u16 ref_nr;
 
@@ -4385,29 +4382,17 @@ struct netdev_adjacent {
 
 static struct netdev_adjacent *__netdev_find_adj(struct net_device *dev,
 						 struct net_device *adj_dev,
-						 struct list_head *dev_list)
+						 struct list_head *adj_list)
 {
 	struct netdev_adjacent *adj;
 
-	list_for_each_entry(adj, dev_list, list) {
+	list_for_each_entry(adj, adj_list, list) {
 		if (adj->dev == adj_dev)
 			return adj;
 	}
 	return NULL;
 }
 
-static inline struct netdev_adjacent *__netdev_find_upper(struct net_device *dev,
-							  struct net_device *udev)
-{
-	return __netdev_find_adj(dev, udev, &dev->upper_dev_list);
-}
-
-static inline struct netdev_adjacent *__netdev_find_lower(struct net_device *dev,
-							  struct net_device *ldev)
-{
-	return __netdev_find_adj(dev, ldev, &dev->lower_dev_list);
-}
-
 /**
  * netdev_has_upper_dev - Check if device is linked to an upper device
  * @dev: device
@@ -4422,7 +4407,7 @@ bool netdev_has_upper_dev(struct net_device *dev,
 {
 	ASSERT_RTNL();
 
-	return __netdev_find_upper(dev, upper_dev);
+	return __netdev_find_adj(dev, upper_dev, &dev->all_adj_list.upper);
 }
 EXPORT_SYMBOL(netdev_has_upper_dev);
 
@@ -4437,7 +4422,7 @@ bool netdev_has_any_upper_dev(struct net_device *dev)
 {
 	ASSERT_RTNL();
 
-	return !list_empty(&dev->upper_dev_list);
+	return !list_empty(&dev->all_adj_list.upper);
 }
 EXPORT_SYMBOL(netdev_has_any_upper_dev);
 
@@ -4454,10 +4439,10 @@ struct net_device *netdev_master_upper_dev_get(struct net_device *dev)
 
 	ASSERT_RTNL();
 
-	if (list_empty(&dev->upper_dev_list))
+	if (list_empty(&dev->adj_list.upper))
 		return NULL;
 
-	upper = list_first_entry(&dev->upper_dev_list,
+	upper = list_first_entry(&dev->adj_list.upper,
 				 struct netdev_adjacent, list);
 	if (likely(upper->master))
 		return upper->dev;
@@ -4465,15 +4450,15 @@ struct net_device *netdev_master_upper_dev_get(struct net_device *dev)
 }
 EXPORT_SYMBOL(netdev_master_upper_dev_get);
 
-/* netdev_upper_get_next_dev_rcu - Get the next dev from upper list
+/* netdev_all_upper_get_next_dev_rcu - Get the next dev from upper list
  * @dev: device
  * @iter: list_head ** of the current position
  *
  * Gets the next device from the dev's upper list, starting from iter
  * position. The caller must hold RCU read lock.
  */
-struct net_device *netdev_upper_get_next_dev_rcu(struct net_device *dev,
-						 struct list_head **iter)
+struct net_device *netdev_all_upper_get_next_dev_rcu(struct net_device *dev,
+						     struct list_head **iter)
 {
 	struct netdev_adjacent *upper;
 
@@ -4481,14 +4466,14 @@ struct net_device *netdev_upper_get_next_dev_rcu(struct net_device *dev,
 
 	upper = list_entry_rcu((*iter)->next, struct netdev_adjacent, list);
 
-	if (&upper->list == &dev->upper_dev_list)
+	if (&upper->list == &dev->all_adj_list.upper)
 		return NULL;
 
 	*iter = &upper->list;
 
 	return upper->dev;
 }
-EXPORT_SYMBOL(netdev_upper_get_next_dev_rcu);
+EXPORT_SYMBOL(netdev_all_upper_get_next_dev_rcu);
 
 /**
  * netdev_master_upper_dev_get_rcu - Get master upper device
@@ -4501,7 +4486,7 @@ struct net_device *netdev_master_upper_dev_get_rcu(struct net_device *dev)
 {
 	struct netdev_adjacent *upper;
 
-	upper = list_first_or_null_rcu(&dev->upper_dev_list,
+	upper = list_first_or_null_rcu(&dev->adj_list.upper,
 				       struct netdev_adjacent, list);
 	if (upper && likely(upper->master))
 		return upper->dev;
@@ -4512,14 +4497,13 @@ EXPORT_SYMBOL(netdev_master_upper_dev_get_rcu);
 static int __netdev_adjacent_dev_insert(struct net_device *dev,
 					struct net_device *adj_dev,
 					struct list_head *dev_list,
-					bool neighbour, bool master)
+					bool master)
 {
 	struct netdev_adjacent *adj;
 
 	adj = __netdev_find_adj(dev, adj_dev, dev_list);
 
 	if (adj) {
-		BUG_ON(neighbour);
 		adj->ref_nr++;
 		return 0;
 	}
@@ -4530,13 +4514,11 @@ static int __netdev_adjacent_dev_insert(struct net_device *dev,
 
 	adj->dev = adj_dev;
 	adj->master = master;
-	adj->neighbour = neighbour;
 	adj->ref_nr = 1;
-
 	dev_hold(adj_dev);
-	pr_debug("dev_hold for %s, because of %s link added from %s to %s\n",
-		 adj_dev->name, dev_list == &dev->upper_dev_list ?
-		 "upper" : "lower", dev->name, adj_dev->name);
+
+	pr_debug("dev_hold for %s, because of link added from %s to %s\n",
+		 adj_dev->name, dev->name, adj_dev->name);
 
 	/* Ensure that master link is always the first item in list. */
 	if (master)
@@ -4547,22 +4529,6 @@ static int __netdev_adjacent_dev_insert(struct net_device *dev,
 	return 0;
 }
 
-static inline int __netdev_upper_dev_insert(struct net_device *dev,
-					    struct net_device *udev,
-					    bool master, bool neighbour)
-{
-	return __netdev_adjacent_dev_insert(dev, udev, &dev->upper_dev_list,
-					    neighbour, master);
-}
-
-static inline int __netdev_lower_dev_insert(struct net_device *dev,
-					    struct net_device *ldev,
-					    bool neighbour)
-{
-	return __netdev_adjacent_dev_insert(dev, ldev, &dev->lower_dev_list,
-					    neighbour, false);
-}
-
 void __netdev_adjacent_dev_remove(struct net_device *dev,
 				  struct net_device *adj_dev,
 				  struct list_head *dev_list)
@@ -4571,73 +4537,102 @@ void __netdev_adjacent_dev_remove(struct net_device *dev,
 
 	adj = __netdev_find_adj(dev, adj_dev, dev_list);
 
-	if (!adj)
+	if (!adj) {
+		pr_err("tried to remove device %s from %s\n",
+		       dev->name, adj_dev->name);
 		BUG();
+	}
 
 	if (adj->ref_nr > 1) {
+		pr_debug("%s to %s ref_nr-- = %d\n", dev->name, adj_dev->name,
+			 adj->ref_nr-1);
 		adj->ref_nr--;
 		return;
 	}
 
 	list_del_rcu(&adj->list);
-	pr_debug("dev_put for %s, because of %s link removed from %s to %s\n",
-		 adj_dev->name, dev_list == &dev->upper_dev_list ?
-		 "upper" : "lower", dev->name, adj_dev->name);
+	pr_debug("dev_put for %s, because link removed from %s to %s\n",
+		 adj_dev->name, dev->name, adj_dev->name);
 	dev_put(adj_dev);
 	kfree_rcu(adj, rcu);
 }
 
-static inline void __netdev_upper_dev_remove(struct net_device *dev,
-					     struct net_device *udev)
-{
-	return __netdev_adjacent_dev_remove(dev, udev, &dev->upper_dev_list);
-}
-
-static inline void __netdev_lower_dev_remove(struct net_device *dev,
-					     struct net_device *ldev)
-{
-	return __netdev_adjacent_dev_remove(dev, ldev, &dev->lower_dev_list);
-}
-
-int __netdev_adjacent_dev_insert_link(struct net_device *dev,
-				      struct net_device *upper_dev,
-				      bool master, bool neighbour)
+int __netdev_adjacent_dev_link_lists(struct net_device *dev,
+				     struct net_device *upper_dev,
+				     struct list_head *up_list,
+				     struct list_head *down_list,
+				     bool master)
 {
 	int ret;
 
-	ret = __netdev_upper_dev_insert(dev, upper_dev, master, neighbour);
+	ret = __netdev_adjacent_dev_insert(dev, upper_dev, up_list, master);
 	if (ret)
 		return ret;
 
-	ret = __netdev_lower_dev_insert(upper_dev, dev, neighbour);
+	ret = __netdev_adjacent_dev_insert(upper_dev, dev, down_list, false);
 	if (ret) {
-		__netdev_upper_dev_remove(dev, upper_dev);
+		__netdev_adjacent_dev_remove(dev, upper_dev, up_list);
 		return ret;
 	}
 
 	return 0;
 }
 
-static inline int __netdev_adjacent_dev_link(struct net_device *dev,
-					     struct net_device *udev)
+int __netdev_adjacent_dev_link(struct net_device *dev,
+			       struct net_device *upper_dev)
 {
-	return __netdev_adjacent_dev_insert_link(dev, udev, false, false);
+	return __netdev_adjacent_dev_link_lists(dev, upper_dev,
+						&dev->all_adj_list.upper,
+						&upper_dev->all_adj_list.lower,
+						false);
 }
 
-static inline int __netdev_adjacent_dev_link_neighbour(struct net_device *dev,
-						       struct net_device *udev,
-						       bool master)
+void __netdev_adjacent_dev_unlink_lists(struct net_device *dev,
+					struct net_device *upper_dev,
+					struct list_head *up_list,
+					struct list_head *down_list)
 {
-	return __netdev_adjacent_dev_insert_link(dev, udev, master, true);
+	__netdev_adjacent_dev_remove(dev, upper_dev, up_list);
+	__netdev_adjacent_dev_remove(upper_dev, dev, down_list);
 }
 
 void __netdev_adjacent_dev_unlink(struct net_device *dev,
 				  struct net_device *upper_dev)
 {
-	__netdev_upper_dev_remove(dev, upper_dev);
-	__netdev_lower_dev_remove(upper_dev, dev);
+	__netdev_adjacent_dev_unlink_lists(dev, upper_dev,
+					   &dev->all_adj_list.upper,
+					   &upper_dev->all_adj_list.lower);
+}
+
+int __netdev_adjacent_dev_link_neighbour(struct net_device *dev,
+					 struct net_device *upper_dev,
+					 bool master)
+{
+	int ret = __netdev_adjacent_dev_link(dev, upper_dev);
+
+	if (ret)
+		return ret;
+
+	ret = __netdev_adjacent_dev_link_lists(dev, upper_dev,
+					       &dev->adj_list.upper,
+					       &upper_dev->adj_list.lower,
+					       master);
+	if (ret) {
+		__netdev_adjacent_dev_unlink(dev, upper_dev);
+		return ret;
+	}
+
+	return 0;
 }
 
+void __netdev_adjacent_dev_unlink_neighbour(struct net_device *dev,
+					    struct net_device *upper_dev)
+{
+	__netdev_adjacent_dev_unlink(dev, upper_dev);
+	__netdev_adjacent_dev_unlink_lists(dev, upper_dev,
+					   &dev->adj_list.upper,
+					   &upper_dev->adj_list.lower);
+}
 
 static int __netdev_upper_dev_link(struct net_device *dev,
 				   struct net_device *upper_dev, bool master)
@@ -4651,10 +4646,10 @@ static int __netdev_upper_dev_link(struct net_device *dev,
 		return -EBUSY;
 
 	/* To prevent loops, check if dev is not upper device to upper_dev. */
-	if (__netdev_find_upper(upper_dev, dev))
+	if (__netdev_find_adj(upper_dev, dev, &upper_dev->all_adj_list.upper))
 		return -EBUSY;
 
-	if (__netdev_find_upper(dev, upper_dev))
+	if (__netdev_find_adj(dev, upper_dev, &dev->all_adj_list.upper))
 		return -EEXIST;
 
 	if (master && netdev_master_upper_dev_get(dev))
@@ -4665,12 +4660,14 @@ static int __netdev_upper_dev_link(struct net_device *dev,
 		return ret;
 
 	/* Now that we linked these devs, make all the upper_dev's
-	 * upper_dev_list visible to every dev's lower_dev_list and vice
+	 * all_adj_list.upper visible to every dev's all_adj_list.lower an
 	 * versa, and don't forget the devices itself. All of these
 	 * links are non-neighbours.
 	 */
-	list_for_each_entry(i, &dev->lower_dev_list, list) {
-		list_for_each_entry(j, &upper_dev->upper_dev_list, list) {
+	list_for_each_entry(i, &dev->all_adj_list.lower, list) {
+		list_for_each_entry(j, &upper_dev->all_adj_list.upper, list) {
+			pr_debug("Interlinking %s with %s, non-neighbour\n",
+				 i->dev->name, j->dev->name);
 			ret = __netdev_adjacent_dev_link(i->dev, j->dev);
 			if (ret)
 				goto rollback_mesh;
@@ -4678,14 +4675,18 @@ static int __netdev_upper_dev_link(struct net_device *dev,
 	}
 
 	/* add dev to every upper_dev's upper device */
-	list_for_each_entry(i, &upper_dev->upper_dev_list, list) {
+	list_for_each_entry(i, &upper_dev->all_adj_list.upper, list) {
+		pr_debug("linking %s's upper device %s with %s\n",
+			 upper_dev->name, i->dev->name, dev->name);
 		ret = __netdev_adjacent_dev_link(dev, i->dev);
 		if (ret)
 			goto rollback_upper_mesh;
 	}
 
 	/* add upper_dev to every dev's lower device */
-	list_for_each_entry(i, &dev->lower_dev_list, list) {
+	list_for_each_entry(i, &dev->all_adj_list.lower, list) {
+		pr_debug("linking %s's lower device %s with %s\n", dev->name,
+			 i->dev->name, upper_dev->name);
 		ret = __netdev_adjacent_dev_link(i->dev, upper_dev);
 		if (ret)
 			goto rollback_lower_mesh;
@@ -4696,7 +4697,7 @@ static int __netdev_upper_dev_link(struct net_device *dev,
 
 rollback_lower_mesh:
 	to_i = i;
-	list_for_each_entry(i, &dev->lower_dev_list, list) {
+	list_for_each_entry(i, &dev->all_adj_list.lower, list) {
 		if (i == to_i)
 			break;
 		__netdev_adjacent_dev_unlink(i->dev, upper_dev);
@@ -4706,7 +4707,7 @@ rollback_lower_mesh:
 
 rollback_upper_mesh:
 	to_i = i;
-	list_for_each_entry(i, &upper_dev->upper_dev_list, list) {
+	list_for_each_entry(i, &upper_dev->all_adj_list.upper, list) {
 		if (i == to_i)
 			break;
 		__netdev_adjacent_dev_unlink(dev, i->dev);
@@ -4717,8 +4718,8 @@ rollback_upper_mesh:
 rollback_mesh:
 	to_i = i;
 	to_j = j;
-	list_for_each_entry(i, &dev->lower_dev_list, list) {
-		list_for_each_entry(j, &upper_dev->upper_dev_list, list) {
+	list_for_each_entry(i, &dev->all_adj_list.lower, list) {
+		list_for_each_entry(j, &upper_dev->all_adj_list.upper, list) {
 			if (i == to_i && j == to_j)
 				break;
 			__netdev_adjacent_dev_unlink(i->dev, j->dev);
@@ -4727,7 +4728,7 @@ rollback_mesh:
 			break;
 	}
 
-	__netdev_adjacent_dev_unlink(dev, upper_dev);
+	__netdev_adjacent_dev_unlink_neighbour(dev, upper_dev);
 
 	return ret;
 }
@@ -4781,23 +4782,23 @@ void netdev_upper_dev_unlink(struct net_device *dev,
 	struct netdev_adjacent *i, *j;
 	ASSERT_RTNL();
 
-	__netdev_adjacent_dev_unlink(dev, upper_dev);
+	__netdev_adjacent_dev_unlink_neighbour(dev, upper_dev);
 
 	/* Here is the tricky part. We must remove all dev's lower
 	 * devices from all upper_dev's upper devices and vice
 	 * versa, to maintain the graph relationship.
 	 */
-	list_for_each_entry(i, &dev->lower_dev_list, list)
-		list_for_each_entry(j, &upper_dev->upper_dev_list, list)
+	list_for_each_entry(i, &dev->all_adj_list.lower, list)
+		list_for_each_entry(j, &upper_dev->all_adj_list.upper, list)
 			__netdev_adjacent_dev_unlink(i->dev, j->dev);
 
 	/* remove also the devices itself from lower/upper device
 	 * list
 	 */
-	list_for_each_entry(i, &dev->lower_dev_list, list)
+	list_for_each_entry(i, &dev->all_adj_list.lower, list)
 		__netdev_adjacent_dev_unlink(i->dev, upper_dev);
 
-	list_for_each_entry(i, &upper_dev->upper_dev_list, list)
+	list_for_each_entry(i, &upper_dev->all_adj_list.upper, list)
 		__netdev_adjacent_dev_unlink(dev, i->dev);
 
 	call_netdevice_notifiers(NETDEV_CHANGEUPPER, dev);
@@ -6059,8 +6060,10 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
 	INIT_LIST_HEAD(&dev->napi_list);
 	INIT_LIST_HEAD(&dev->unreg_list);
 	INIT_LIST_HEAD(&dev->link_watch_list);
-	INIT_LIST_HEAD(&dev->upper_dev_list);
-	INIT_LIST_HEAD(&dev->lower_dev_list);
+	INIT_LIST_HEAD(&dev->adj_list.upper);
+	INIT_LIST_HEAD(&dev->adj_list.lower);
+	INIT_LIST_HEAD(&dev->all_adj_list.upper);
+	INIT_LIST_HEAD(&dev->all_adj_list.lower);
 	dev->priv_flags = IFF_XMIT_DST_RELEASE;
 	setup(dev);
 
-- 
cgit 


From 5249dec7380cb64928d2ae6201028b4da1dceb1e Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:08 +0200
Subject: net: add RCU variant to search for netdev_adjacent link

Currently we have only the RTNL flavour, however we can traverse it while
holding only RCU, so add the RCU search. Add an RCU variant that uses
list_head * as an argument, so that it can be universally used afterwards.

CC: "David S. Miller" <davem@davemloft.net>
CC: Eric Dumazet <edumazet@google.com>
CC: Jiri Pirko <jiri@resnulli.us>
CC: Alexander Duyck <alexander.h.duyck@intel.com>
CC: Cong Wang <amwang@redhat.com>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/dev.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/net/core/dev.c b/net/core/dev.c
index 9a395e03da74..9290f09cdf26 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4380,6 +4380,19 @@ struct netdev_adjacent {
 	struct rcu_head rcu;
 };
 
+static struct netdev_adjacent *__netdev_find_adj_rcu(struct net_device *dev,
+						     struct net_device *adj_dev,
+						     struct list_head *adj_list)
+{
+	struct netdev_adjacent *adj;
+
+	list_for_each_entry_rcu(adj, adj_list, list) {
+		if (adj->dev == adj_dev)
+			return adj;
+	}
+	return NULL;
+}
+
 static struct netdev_adjacent *__netdev_find_adj(struct net_device *dev,
 						 struct net_device *adj_dev,
 						 struct list_head *adj_list)
-- 
cgit 


From 402dae9614557296e84543008a8e582c28fb1db3 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:09 +0200
Subject: net: add netdev_adjacent->private and allow to use it

Currently, even though we can access any linked device, we can't attach
anything to it, which is vital to properly manage them.

To fix this, add a new void *private to netdev_adjacent and functions
setting/getting it (per link), so that we can save, per example, bonding's
slave structures there, per slave device.

netdev_master_upper_dev_link_private(dev, upper_dev, private) links dev to
upper dev and populates the neighbour link only with private.

netdev_lower_dev_get_private{,_rcu}() returns the private, if found.

CC: "David S. Miller" <davem@davemloft.net>
CC: Eric Dumazet <edumazet@google.com>
CC: Jiri Pirko <jiri@resnulli.us>
CC: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdevice.h |  7 +++++
 net/core/dev.c            | 68 +++++++++++++++++++++++++++++++++++++++--------
 2 files changed, 64 insertions(+), 11 deletions(-)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 514045c704a8..75d5beac463b 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2839,8 +2839,15 @@ extern int netdev_upper_dev_link(struct net_device *dev,
 				 struct net_device *upper_dev);
 extern int netdev_master_upper_dev_link(struct net_device *dev,
 					struct net_device *upper_dev);
+extern int netdev_master_upper_dev_link_private(struct net_device *dev,
+						struct net_device *upper_dev,
+						void *private);
 extern void netdev_upper_dev_unlink(struct net_device *dev,
 				    struct net_device *upper_dev);
+extern void *netdev_lower_dev_get_private_rcu(struct net_device *dev,
+					      struct net_device *lower_dev);
+extern void *netdev_lower_dev_get_private(struct net_device *dev,
+					  struct net_device *lower_dev);
 extern int skb_checksum_help(struct sk_buff *skb);
 extern struct sk_buff *__skb_gso_segment(struct sk_buff *skb,
 	netdev_features_t features, bool tx_path);
diff --git a/net/core/dev.c b/net/core/dev.c
index 9290f09cdf26..c69ab74fb201 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4376,6 +4376,9 @@ struct netdev_adjacent {
 	/* counter for the number of times this device was added to us */
 	u16 ref_nr;
 
+	/* private field for the users */
+	void *private;
+
 	struct list_head list;
 	struct rcu_head rcu;
 };
@@ -4510,7 +4513,7 @@ EXPORT_SYMBOL(netdev_master_upper_dev_get_rcu);
 static int __netdev_adjacent_dev_insert(struct net_device *dev,
 					struct net_device *adj_dev,
 					struct list_head *dev_list,
-					bool master)
+					void *private, bool master)
 {
 	struct netdev_adjacent *adj;
 
@@ -4528,6 +4531,7 @@ static int __netdev_adjacent_dev_insert(struct net_device *dev,
 	adj->dev = adj_dev;
 	adj->master = master;
 	adj->ref_nr = 1;
+	adj->private = private;
 	dev_hold(adj_dev);
 
 	pr_debug("dev_hold for %s, because of link added from %s to %s\n",
@@ -4574,15 +4578,17 @@ int __netdev_adjacent_dev_link_lists(struct net_device *dev,
 				     struct net_device *upper_dev,
 				     struct list_head *up_list,
 				     struct list_head *down_list,
-				     bool master)
+				     void *private, bool master)
 {
 	int ret;
 
-	ret = __netdev_adjacent_dev_insert(dev, upper_dev, up_list, master);
+	ret = __netdev_adjacent_dev_insert(dev, upper_dev, up_list, private,
+					   master);
 	if (ret)
 		return ret;
 
-	ret = __netdev_adjacent_dev_insert(upper_dev, dev, down_list, false);
+	ret = __netdev_adjacent_dev_insert(upper_dev, dev, down_list, private,
+					   false);
 	if (ret) {
 		__netdev_adjacent_dev_remove(dev, upper_dev, up_list);
 		return ret;
@@ -4597,7 +4603,7 @@ int __netdev_adjacent_dev_link(struct net_device *dev,
 	return __netdev_adjacent_dev_link_lists(dev, upper_dev,
 						&dev->all_adj_list.upper,
 						&upper_dev->all_adj_list.lower,
-						false);
+						NULL, false);
 }
 
 void __netdev_adjacent_dev_unlink_lists(struct net_device *dev,
@@ -4619,7 +4625,7 @@ void __netdev_adjacent_dev_unlink(struct net_device *dev,
 
 int __netdev_adjacent_dev_link_neighbour(struct net_device *dev,
 					 struct net_device *upper_dev,
-					 bool master)
+					 void *private, bool master)
 {
 	int ret = __netdev_adjacent_dev_link(dev, upper_dev);
 
@@ -4629,7 +4635,7 @@ int __netdev_adjacent_dev_link_neighbour(struct net_device *dev,
 	ret = __netdev_adjacent_dev_link_lists(dev, upper_dev,
 					       &dev->adj_list.upper,
 					       &upper_dev->adj_list.lower,
-					       master);
+					       private, master);
 	if (ret) {
 		__netdev_adjacent_dev_unlink(dev, upper_dev);
 		return ret;
@@ -4648,7 +4654,8 @@ void __netdev_adjacent_dev_unlink_neighbour(struct net_device *dev,
 }
 
 static int __netdev_upper_dev_link(struct net_device *dev,
-				   struct net_device *upper_dev, bool master)
+				   struct net_device *upper_dev, bool master,
+				   void *private)
 {
 	struct netdev_adjacent *i, *j, *to_i, *to_j;
 	int ret = 0;
@@ -4668,7 +4675,8 @@ static int __netdev_upper_dev_link(struct net_device *dev,
 	if (master && netdev_master_upper_dev_get(dev))
 		return -EBUSY;
 
-	ret = __netdev_adjacent_dev_link_neighbour(dev, upper_dev, master);
+	ret = __netdev_adjacent_dev_link_neighbour(dev, upper_dev, private,
+						   master);
 	if (ret)
 		return ret;
 
@@ -4759,7 +4767,7 @@ rollback_mesh:
 int netdev_upper_dev_link(struct net_device *dev,
 			  struct net_device *upper_dev)
 {
-	return __netdev_upper_dev_link(dev, upper_dev, false);
+	return __netdev_upper_dev_link(dev, upper_dev, false, NULL);
 }
 EXPORT_SYMBOL(netdev_upper_dev_link);
 
@@ -4777,10 +4785,18 @@ EXPORT_SYMBOL(netdev_upper_dev_link);
 int netdev_master_upper_dev_link(struct net_device *dev,
 				 struct net_device *upper_dev)
 {
-	return __netdev_upper_dev_link(dev, upper_dev, true);
+	return __netdev_upper_dev_link(dev, upper_dev, true, NULL);
 }
 EXPORT_SYMBOL(netdev_master_upper_dev_link);
 
+int netdev_master_upper_dev_link_private(struct net_device *dev,
+					 struct net_device *upper_dev,
+					 void *private)
+{
+	return __netdev_upper_dev_link(dev, upper_dev, true, private);
+}
+EXPORT_SYMBOL(netdev_master_upper_dev_link_private);
+
 /**
  * netdev_upper_dev_unlink - Removes a link to upper device
  * @dev: device
@@ -4818,6 +4834,36 @@ void netdev_upper_dev_unlink(struct net_device *dev,
 }
 EXPORT_SYMBOL(netdev_upper_dev_unlink);
 
+void *netdev_lower_dev_get_private_rcu(struct net_device *dev,
+				       struct net_device *lower_dev)
+{
+	struct netdev_adjacent *lower;
+
+	if (!lower_dev)
+		return NULL;
+	lower = __netdev_find_adj_rcu(dev, lower_dev, &dev->adj_list.lower);
+	if (!lower)
+		return NULL;
+
+	return lower->private;
+}
+EXPORT_SYMBOL(netdev_lower_dev_get_private_rcu);
+
+void *netdev_lower_dev_get_private(struct net_device *dev,
+				   struct net_device *lower_dev)
+{
+	struct netdev_adjacent *lower;
+
+	if (!lower_dev)
+		return NULL;
+	lower = __netdev_find_adj(dev, lower_dev, &dev->adj_list.lower);
+	if (!lower)
+		return NULL;
+
+	return lower->private;
+}
+EXPORT_SYMBOL(netdev_lower_dev_get_private);
+
 static void dev_change_rx_flags(struct net_device *dev, int flags)
 {
 	const struct net_device_ops *ops = dev->netdev_ops;
-- 
cgit 


From 1f718f0f4f97145f4072d2d72dcf85069ca7226d Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:10 +0200
Subject: bonding: populate neighbour's private on enslave

Use the new provided function when attaching the lower slave to populate
its ->private with struct slave *new_slave. Also, move it to the end to
be able to 'find' it only after it was completely initialized, and
deinitialize in the first place on release.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_main.c | 30 ++++++++++++++++--------------
 1 file changed, 16 insertions(+), 14 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 91c4ab8913b1..8e41416a1d52 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1233,11 +1233,12 @@ static rx_handler_result_t bond_handle_frame(struct sk_buff **pskb)
 }
 
 static int bond_master_upper_dev_link(struct net_device *bond_dev,
-				      struct net_device *slave_dev)
+				      struct net_device *slave_dev,
+				      struct slave *slave)
 {
 	int err;
 
-	err = netdev_master_upper_dev_link(slave_dev, bond_dev);
+	err = netdev_master_upper_dev_link_private(slave_dev, bond_dev, slave);
 	if (err)
 		return err;
 	slave_dev->flags |= IFF_SLAVE;
@@ -1413,17 +1414,11 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 		}
 	}
 
-	res = bond_master_upper_dev_link(bond_dev, slave_dev);
-	if (res) {
-		pr_debug("Error %d calling bond_master_upper_dev_link\n", res);
-		goto err_restore_mac;
-	}
-
 	/* open the slave since the application closed it */
 	res = dev_open(slave_dev);
 	if (res) {
 		pr_debug("Opening slave %s failed\n", slave_dev->name);
-		goto err_unset_master;
+		goto err_restore_mac;
 	}
 
 	new_slave->bond = bond;
@@ -1637,6 +1632,13 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 		goto err_dest_symlinks;
 	}
 
+	res = bond_master_upper_dev_link(bond_dev, slave_dev, new_slave);
+	if (res) {
+		pr_debug("Error %d calling bond_master_upper_dev_link\n", res);
+		goto err_unregister;
+	}
+
+
 	pr_info("%s: enslaving %s as a%s interface with a%s link.\n",
 		bond_dev->name, slave_dev->name,
 		bond_is_active_slave(new_slave) ? "n active" : " backup",
@@ -1646,6 +1648,9 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 	return 0;
 
 /* Undo stages on error */
+err_unregister:
+	netdev_rx_handler_unregister(slave_dev);
+
 err_dest_symlinks:
 	bond_destroy_slave_symlinks(bond_dev, slave_dev);
 
@@ -1675,9 +1680,6 @@ err_close:
 	slave_dev->priv_flags &= ~IFF_BONDING;
 	dev_close(slave_dev);
 
-err_unset_master:
-	bond_upper_dev_unlink(bond_dev, slave_dev);
-
 err_restore_mac:
 	if (!bond->params.fail_over_mac) {
 		/* XXX TODO - fom follow mode needs to change master's
@@ -1748,6 +1750,8 @@ static int __bond_release_one(struct net_device *bond_dev,
 	}
 
 	write_unlock_bh(&bond->lock);
+
+	bond_upper_dev_unlink(bond_dev, slave_dev);
 	/* unregister rx_handler early so bond_handle_frame wouldn't be called
 	 * for this slave anymore.
 	 */
@@ -1866,8 +1870,6 @@ static int __bond_release_one(struct net_device *bond_dev,
 		bond_hw_addr_flush(bond_dev, slave_dev);
 	}
 
-	bond_upper_dev_unlink(bond_dev, slave_dev);
-
 	slave_disable_netpoll(slave);
 
 	/* close slave before restoring its mac address */
-- 
cgit 


From 46bb4807b5d95a049b008efd639ff8942970d815 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:11 +0200
Subject: bonding: modify bond_get_slave_by_dev() to use neighbours

It should be used under rtnl/bonding lock, so use the non-RCU version.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bonding.h | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 03cf3fd14490..90f4847b264b 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -276,13 +276,7 @@ struct bonding {
 static inline struct slave *bond_get_slave_by_dev(struct bonding *bond,
 						  struct net_device *slave_dev)
 {
-	struct slave *slave = NULL;
-
-	bond_for_each_slave(bond, slave)
-		if (slave->dev == slave_dev)
-			return slave;
-
-	return NULL;
+	return netdev_lower_dev_get_private(bond->dev, slave_dev);
 }
 
 static inline struct bonding *bond_get_bond_by_slave(struct slave *slave)
-- 
cgit 


From 31088a113c2a948856ed2047d8c21c217b13e85d Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:12 +0200
Subject: net: add for_each iterators through neighbour lower link's private

Add a possibility to iterate through netdev_adjacent's private, currently
only for lower neighbours.

Add both RCU and RTNL/other locking variants of iterators, and make the
non-rcu variant to be safe from removal.

CC: "David S. Miller" <davem@davemloft.net>
CC: Eric Dumazet <edumazet@google.com>
CC: Jiri Pirko <jiri@resnulli.us>
CC: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdevice.h | 17 ++++++++++++++
 net/core/dev.c            | 60 ++++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 76 insertions(+), 1 deletion(-)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 75d5beac463b..168974e40cf5 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2833,6 +2833,23 @@ extern struct net_device *netdev_all_upper_get_next_dev_rcu(struct net_device *d
 	     updev; \
 	     updev = netdev_all_upper_get_next_dev_rcu(dev, &(iter)))
 
+extern void *netdev_lower_get_next_private(struct net_device *dev,
+					   struct list_head **iter);
+extern void *netdev_lower_get_next_private_rcu(struct net_device *dev,
+					       struct list_head **iter);
+
+#define netdev_for_each_lower_private(dev, priv, iter) \
+	for (iter = (dev)->adj_list.lower.next, \
+	     priv = netdev_lower_get_next_private(dev, &(iter)); \
+	     priv; \
+	     priv = netdev_lower_get_next_private(dev, &(iter)))
+
+#define netdev_for_each_lower_private_rcu(dev, priv, iter) \
+	for (iter = &(dev)->adj_list.lower, \
+	     priv = netdev_lower_get_next_private_rcu(dev, &(iter)); \
+	     priv; \
+	     priv = netdev_lower_get_next_private_rcu(dev, &(iter)))
+
 extern struct net_device *netdev_master_upper_dev_get(struct net_device *dev);
 extern struct net_device *netdev_master_upper_dev_get_rcu(struct net_device *dev);
 extern int netdev_upper_dev_link(struct net_device *dev,
diff --git a/net/core/dev.c b/net/core/dev.c
index c69ab74fb201..0aa844aae40b 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4466,7 +4466,8 @@ struct net_device *netdev_master_upper_dev_get(struct net_device *dev)
 }
 EXPORT_SYMBOL(netdev_master_upper_dev_get);
 
-/* netdev_all_upper_get_next_dev_rcu - Get the next dev from upper list
+/**
+ * netdev_all_upper_get_next_dev_rcu - Get the next dev from upper list
  * @dev: device
  * @iter: list_head ** of the current position
  *
@@ -4491,6 +4492,63 @@ struct net_device *netdev_all_upper_get_next_dev_rcu(struct net_device *dev,
 }
 EXPORT_SYMBOL(netdev_all_upper_get_next_dev_rcu);
 
+/**
+ * netdev_lower_get_next_private - Get the next ->private from the
+ *				   lower neighbour list
+ * @dev: device
+ * @iter: list_head ** of the current position
+ *
+ * Gets the next netdev_adjacent->private from the dev's lower neighbour
+ * list, starting from iter position. The caller must hold either hold the
+ * RTNL lock or its own locking that guarantees that the neighbour lower
+ * list will remain unchainged.
+ */
+void *netdev_lower_get_next_private(struct net_device *dev,
+				    struct list_head **iter)
+{
+	struct netdev_adjacent *lower;
+
+	lower = list_entry(*iter, struct netdev_adjacent, list);
+
+	if (&lower->list == &dev->adj_list.lower)
+		return NULL;
+
+	if (iter)
+		*iter = lower->list.next;
+
+	return lower->private;
+}
+EXPORT_SYMBOL(netdev_lower_get_next_private);
+
+/**
+ * netdev_lower_get_next_private_rcu - Get the next ->private from the
+ *				       lower neighbour list, RCU
+ *				       variant
+ * @dev: device
+ * @iter: list_head ** of the current position
+ *
+ * Gets the next netdev_adjacent->private from the dev's lower neighbour
+ * list, starting from iter position. The caller must hold RCU read lock.
+ */
+void *netdev_lower_get_next_private_rcu(struct net_device *dev,
+					struct list_head **iter)
+{
+	struct netdev_adjacent *lower;
+
+	WARN_ON_ONCE(!rcu_read_lock_held());
+
+	lower = list_entry_rcu((*iter)->next, struct netdev_adjacent, list);
+
+	if (&lower->list == &dev->adj_list.lower)
+		return NULL;
+
+	if (iter)
+		*iter = &lower->list;
+
+	return lower->private;
+}
+EXPORT_SYMBOL(netdev_lower_get_next_private_rcu);
+
 /**
  * netdev_master_upper_dev_get_rcu - Get master upper device
  * @dev: device
-- 
cgit 


From 81f23b13ac985e9a3cfb889c690695a8932e02c2 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:13 +0200
Subject: bonding: remove bond_for_each_slave_continue_reverse()

We only use it in rollback scenarios and can easily use the standart
bond_for_each_dev() instead.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_alb.c  | 14 ++++++++------
 drivers/net/bonding/bond_main.c | 34 ++++++++++++++++++++++------------
 drivers/net/bonding/bonding.h   | 10 ----------
 3 files changed, 30 insertions(+), 28 deletions(-)

diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index 8524e33e6754..6437657375d7 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -1246,9 +1246,9 @@ static int alb_handle_addr_collision_on_attach(struct bonding *bond, struct slav
  */
 static int alb_set_mac_address(struct bonding *bond, void *addr)
 {
-	char tmp_addr[ETH_ALEN];
-	struct slave *slave;
+	struct slave *slave, *rollback_slave;
 	struct sockaddr sa;
+	char tmp_addr[ETH_ALEN];
 	int res;
 
 	if (bond->alb_info.rlb_enabled)
@@ -1274,10 +1274,12 @@ unwind:
 	sa.sa_family = bond->dev->type;
 
 	/* unwind from head to the slave that failed */
-	bond_for_each_slave_continue_reverse(bond, slave) {
-		memcpy(tmp_addr, slave->dev->dev_addr, ETH_ALEN);
-		dev_set_mac_address(slave->dev, &sa);
-		memcpy(slave->dev->dev_addr, tmp_addr, ETH_ALEN);
+	bond_for_each_slave(bond, rollback_slave) {
+		if (rollback_slave == slave)
+			break;
+		memcpy(tmp_addr, rollback_slave->dev->dev_addr, ETH_ALEN);
+		dev_set_mac_address(rollback_slave->dev, &sa);
+		memcpy(rollback_slave->dev->dev_addr, tmp_addr, ETH_ALEN);
 	}
 
 	return res;
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 8e41416a1d52..d94b6c16537d 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -332,7 +332,7 @@ static int bond_vlan_rx_add_vid(struct net_device *bond_dev,
 				__be16 proto, u16 vid)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
-	struct slave *slave;
+	struct slave *slave, *rollback_slave;
 	int res;
 
 	bond_for_each_slave(bond, slave) {
@@ -344,9 +344,13 @@ static int bond_vlan_rx_add_vid(struct net_device *bond_dev,
 	return 0;
 
 unwind:
-	/* unwind from the slave that failed */
-	bond_for_each_slave_continue_reverse(bond, slave)
-		vlan_vid_del(slave->dev, proto, vid);
+	/* unwind to the slave that failed */
+	bond_for_each_slave(bond, rollback_slave) {
+		if (rollback_slave == slave)
+			break;
+
+		vlan_vid_del(rollback_slave->dev, proto, vid);
+	}
 
 	return res;
 }
@@ -3468,7 +3472,7 @@ static int bond_neigh_setup(struct net_device *dev,
 static int bond_change_mtu(struct net_device *bond_dev, int new_mtu)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
-	struct slave *slave;
+	struct slave *slave, *rollback_slave;
 	int res = 0;
 
 	pr_debug("bond=%p, name=%s, new_mtu=%d\n", bond,
@@ -3517,13 +3521,16 @@ static int bond_change_mtu(struct net_device *bond_dev, int new_mtu)
 
 unwind:
 	/* unwind from head to the slave that failed */
-	bond_for_each_slave_continue_reverse(bond, slave) {
+	bond_for_each_slave(bond, rollback_slave) {
 		int tmp_res;
 
-		tmp_res = dev_set_mtu(slave->dev, bond_dev->mtu);
+		if (rollback_slave == slave)
+			break;
+
+		tmp_res = dev_set_mtu(rollback_slave->dev, bond_dev->mtu);
 		if (tmp_res) {
 			pr_debug("unwind err %d dev %s\n",
-				 tmp_res, slave->dev->name);
+				 tmp_res, rollback_slave->dev->name);
 		}
 	}
 
@@ -3540,8 +3547,8 @@ unwind:
 static int bond_set_mac_address(struct net_device *bond_dev, void *addr)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
+	struct slave *slave, *rollback_slave;
 	struct sockaddr *sa = addr, tmp_sa;
-	struct slave *slave;
 	int res = 0;
 
 	if (bond->params.mode == BOND_MODE_ALB)
@@ -3607,13 +3614,16 @@ unwind:
 	tmp_sa.sa_family = bond_dev->type;
 
 	/* unwind from head to the slave that failed */
-	bond_for_each_slave_continue_reverse(bond, slave) {
+	bond_for_each_slave(bond, rollback_slave) {
 		int tmp_res;
 
-		tmp_res = dev_set_mac_address(slave->dev, &tmp_sa);
+		if (rollback_slave == slave)
+			break;
+
+		tmp_res = dev_set_mac_address(rollback_slave->dev, &tmp_sa);
 		if (tmp_res) {
 			pr_debug("unwind err %d dev %s\n",
-				 tmp_res, slave->dev->name);
+				 tmp_res, rollback_slave->dev->name);
 		}
 	}
 
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 90f4847b264b..0b0c3df21a89 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -120,16 +120,6 @@
 #define bond_for_each_slave_rcu(bond, pos) \
 	list_for_each_entry_rcu(pos, &(bond)->slave_list, list)
 
-/**
- * bond_for_each_slave_reverse - iterate in reverse from a given position
- * @bond:	the bond holding this list
- * @pos:	slave to continue from
- *
- * Caller must hold bond->lock
- */
-#define bond_for_each_slave_continue_reverse(bond, pos) \
-	list_for_each_entry_continue_reverse(pos, &(bond)->slave_list, list)
-
 #ifdef CONFIG_NET_POLL_CONTROLLER
 extern atomic_t netpoll_block_tx;
 
-- 
cgit 


From 9caff1e7b761c28018bf1858f6661439b4055f51 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:14 +0200
Subject: bonding: make bond_for_each_slave() use lower neighbour's private

It needs a list_head *iter, so add it wherever needed. Use both non-rcu and
rcu variants.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: Dimitris Michailidis <dm@chelsio.com>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_3ad.c                  |  6 +-
 drivers/net/bonding/bond_alb.c                  | 18 ++++--
 drivers/net/bonding/bond_main.c                 | 86 ++++++++++++++++---------
 drivers/net/bonding/bond_procfs.c               |  5 +-
 drivers/net/bonding/bond_sysfs.c                | 23 ++++---
 drivers/net/bonding/bonding.h                   | 12 ++--
 drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c |  3 +-
 7 files changed, 98 insertions(+), 55 deletions(-)

diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index 0d8f427ade93..3847aee34968 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -2419,6 +2419,7 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev)
 {
 	struct slave *slave, *start_at;
 	struct bonding *bond = netdev_priv(dev);
+	struct list_head *iter;
 	int slave_agg_no;
 	int slaves_in_agg;
 	int agg_id;
@@ -2444,7 +2445,7 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev)
 
 	slave_agg_no = bond->xmit_hash_policy(skb, slaves_in_agg);
 
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		struct aggregator *agg = SLAVE_AD_INFO(slave).port.aggregator;
 
 		if (agg && (agg->aggregator_identifier == agg_id)) {
@@ -2515,11 +2516,12 @@ int bond_3ad_lacpdu_recv(const struct sk_buff *skb, struct bonding *bond,
 void bond_3ad_update_lacp_rate(struct bonding *bond)
 {
 	struct port *port = NULL;
+	struct list_head *iter;
 	struct slave *slave;
 	int lacp_fast;
 
 	lacp_fast = bond->params.lacp_fast;
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		port = &(SLAVE_AD_INFO(slave).port);
 		__get_state_machine_lock(port);
 		if (lacp_fast)
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index 6437657375d7..f4929cee21a6 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -223,13 +223,14 @@ static long long compute_gap(struct slave *slave)
 static struct slave *tlb_get_least_loaded_slave(struct bonding *bond)
 {
 	struct slave *slave, *least_loaded;
+	struct list_head *iter;
 	long long max_gap;
 
 	least_loaded = NULL;
 	max_gap = LLONG_MIN;
 
 	/* Find the slave with the largest gap */
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		if (SLAVE_IS_OK(slave)) {
 			long long gap = compute_gap(slave);
 
@@ -1172,8 +1173,9 @@ static void alb_change_hw_addr_on_detach(struct bonding *bond, struct slave *sla
  */
 static int alb_handle_addr_collision_on_attach(struct bonding *bond, struct slave *slave)
 {
-	struct slave *tmp_slave1, *free_mac_slave = NULL;
 	struct slave *has_bond_addr = bond->curr_active_slave;
+	struct slave *tmp_slave1, *free_mac_slave = NULL;
+	struct list_head *iter;
 
 	if (list_empty(&bond->slave_list)) {
 		/* this is the first slave */
@@ -1196,7 +1198,7 @@ static int alb_handle_addr_collision_on_attach(struct bonding *bond, struct slav
 	/* The slave's address is equal to the address of the bond.
 	 * Search for a spare address in the bond for this slave.
 	 */
-	bond_for_each_slave(bond, tmp_slave1) {
+	bond_for_each_slave(bond, tmp_slave1, iter) {
 		if (!bond_slave_has_mac(bond, tmp_slave1->perm_hwaddr)) {
 			/* no slave has tmp_slave1's perm addr
 			 * as its curr addr
@@ -1247,6 +1249,7 @@ static int alb_handle_addr_collision_on_attach(struct bonding *bond, struct slav
 static int alb_set_mac_address(struct bonding *bond, void *addr)
 {
 	struct slave *slave, *rollback_slave;
+	struct list_head *iter;
 	struct sockaddr sa;
 	char tmp_addr[ETH_ALEN];
 	int res;
@@ -1254,7 +1257,7 @@ static int alb_set_mac_address(struct bonding *bond, void *addr)
 	if (bond->alb_info.rlb_enabled)
 		return 0;
 
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		/* save net_device's current hw address */
 		memcpy(tmp_addr, slave->dev->dev_addr, ETH_ALEN);
 
@@ -1274,7 +1277,7 @@ unwind:
 	sa.sa_family = bond->dev->type;
 
 	/* unwind from head to the slave that failed */
-	bond_for_each_slave(bond, rollback_slave) {
+	bond_for_each_slave(bond, rollback_slave, iter) {
 		if (rollback_slave == slave)
 			break;
 		memcpy(tmp_addr, rollback_slave->dev->dev_addr, ETH_ALEN);
@@ -1460,6 +1463,7 @@ void bond_alb_monitor(struct work_struct *work)
 	struct bonding *bond = container_of(work, struct bonding,
 					    alb_work.work);
 	struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond));
+	struct list_head *iter;
 	struct slave *slave;
 
 	read_lock(&bond->lock);
@@ -1482,7 +1486,7 @@ void bond_alb_monitor(struct work_struct *work)
 		 */
 		read_lock(&bond->curr_slave_lock);
 
-		bond_for_each_slave(bond, slave)
+		bond_for_each_slave(bond, slave, iter)
 			alb_send_learning_packets(slave, slave->dev->dev_addr);
 
 		read_unlock(&bond->curr_slave_lock);
@@ -1495,7 +1499,7 @@ void bond_alb_monitor(struct work_struct *work)
 
 		read_lock(&bond->curr_slave_lock);
 
-		bond_for_each_slave(bond, slave) {
+		bond_for_each_slave(bond, slave, iter) {
 			tlb_clear_slave(bond, slave, 1);
 			if (slave == bond->curr_active_slave) {
 				SLAVE_TLB_INFO(slave).load =
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index d94b6c16537d..9064e24de35a 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -333,9 +333,10 @@ static int bond_vlan_rx_add_vid(struct net_device *bond_dev,
 {
 	struct bonding *bond = netdev_priv(bond_dev);
 	struct slave *slave, *rollback_slave;
+	struct list_head *iter;
 	int res;
 
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		res = vlan_vid_add(slave->dev, proto, vid);
 		if (res)
 			goto unwind;
@@ -345,7 +346,7 @@ static int bond_vlan_rx_add_vid(struct net_device *bond_dev,
 
 unwind:
 	/* unwind to the slave that failed */
-	bond_for_each_slave(bond, rollback_slave) {
+	bond_for_each_slave(bond, rollback_slave, iter) {
 		if (rollback_slave == slave)
 			break;
 
@@ -364,9 +365,10 @@ static int bond_vlan_rx_kill_vid(struct net_device *bond_dev,
 				 __be16 proto, u16 vid)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
+	struct list_head *iter;
 	struct slave *slave;
 
-	bond_for_each_slave(bond, slave)
+	bond_for_each_slave(bond, slave, iter)
 		vlan_vid_del(slave->dev, proto, vid);
 
 	if (bond_is_lb(bond))
@@ -386,6 +388,7 @@ static int bond_vlan_rx_kill_vid(struct net_device *bond_dev,
  */
 static int bond_set_carrier(struct bonding *bond)
 {
+	struct list_head *iter;
 	struct slave *slave;
 
 	if (list_empty(&bond->slave_list))
@@ -394,7 +397,7 @@ static int bond_set_carrier(struct bonding *bond)
 	if (bond->params.mode == BOND_MODE_8023AD)
 		return bond_3ad_set_carrier(bond);
 
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		if (slave->link == BOND_LINK_UP) {
 			if (!netif_carrier_ok(bond->dev)) {
 				netif_carrier_on(bond->dev);
@@ -526,7 +529,9 @@ static int bond_check_dev_link(struct bonding *bond,
  */
 static int bond_set_promiscuity(struct bonding *bond, int inc)
 {
+	struct list_head *iter;
 	int err = 0;
+
 	if (USES_PRIMARY(bond->params.mode)) {
 		/* write lock already acquired */
 		if (bond->curr_active_slave) {
@@ -536,7 +541,7 @@ static int bond_set_promiscuity(struct bonding *bond, int inc)
 	} else {
 		struct slave *slave;
 
-		bond_for_each_slave(bond, slave) {
+		bond_for_each_slave(bond, slave, iter) {
 			err = dev_set_promiscuity(slave->dev, inc);
 			if (err)
 				return err;
@@ -550,7 +555,9 @@ static int bond_set_promiscuity(struct bonding *bond, int inc)
  */
 static int bond_set_allmulti(struct bonding *bond, int inc)
 {
+	struct list_head *iter;
 	int err = 0;
+
 	if (USES_PRIMARY(bond->params.mode)) {
 		/* write lock already acquired */
 		if (bond->curr_active_slave) {
@@ -560,7 +567,7 @@ static int bond_set_allmulti(struct bonding *bond, int inc)
 	} else {
 		struct slave *slave;
 
-		bond_for_each_slave(bond, slave) {
+		bond_for_each_slave(bond, slave, iter) {
 			err = dev_set_allmulti(slave->dev, inc);
 			if (err)
 				return err;
@@ -1050,9 +1057,10 @@ static void bond_poll_controller(struct net_device *bond_dev)
 static void bond_netpoll_cleanup(struct net_device *bond_dev)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
+	struct list_head *iter;
 	struct slave *slave;
 
-	bond_for_each_slave(bond, slave)
+	bond_for_each_slave(bond, slave, iter)
 		if (IS_UP(slave->dev))
 			slave_disable_netpoll(slave);
 }
@@ -1060,10 +1068,11 @@ static void bond_netpoll_cleanup(struct net_device *bond_dev)
 static int bond_netpoll_setup(struct net_device *dev, struct netpoll_info *ni, gfp_t gfp)
 {
 	struct bonding *bond = netdev_priv(dev);
+	struct list_head *iter;
 	struct slave *slave;
 	int err = 0;
 
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		err = slave_enable_netpoll(slave);
 		if (err) {
 			bond_netpoll_cleanup(dev);
@@ -1091,6 +1100,7 @@ static netdev_features_t bond_fix_features(struct net_device *dev,
 					   netdev_features_t features)
 {
 	struct bonding *bond = netdev_priv(dev);
+	struct list_head *iter;
 	netdev_features_t mask;
 	struct slave *slave;
 
@@ -1104,7 +1114,7 @@ static netdev_features_t bond_fix_features(struct net_device *dev,
 	features &= ~NETIF_F_ONE_FOR_ALL;
 	features |= NETIF_F_ALL_FOR_ALL;
 
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		features = netdev_increment_features(features,
 						     slave->dev->features,
 						     mask);
@@ -1122,16 +1132,17 @@ static void bond_compute_features(struct bonding *bond)
 {
 	unsigned int flags, dst_release_flag = IFF_XMIT_DST_RELEASE;
 	netdev_features_t vlan_features = BOND_VLAN_FEATURES;
+	struct net_device *bond_dev = bond->dev;
+	struct list_head *iter;
+	struct slave *slave;
 	unsigned short max_hard_header_len = ETH_HLEN;
 	unsigned int gso_max_size = GSO_MAX_SIZE;
-	struct net_device *bond_dev = bond->dev;
 	u16 gso_max_segs = GSO_MAX_SEGS;
-	struct slave *slave;
 
 	if (list_empty(&bond->slave_list))
 		goto done;
 
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		vlan_features = netdev_increment_features(vlan_features,
 			slave->dev->vlan_features, BOND_VLAN_FEATURES);
 
@@ -1993,11 +2004,12 @@ static int bond_info_query(struct net_device *bond_dev, struct ifbond *info)
 static int bond_slave_info_query(struct net_device *bond_dev, struct ifslave *info)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
+	struct list_head *iter;
 	int i = 0, res = -ENODEV;
 	struct slave *slave;
 
 	read_lock(&bond->lock);
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		if (i++ == (int)info->slave_id) {
 			res = 0;
 			strcpy(info->slave_name, slave->dev->name);
@@ -2018,12 +2030,13 @@ static int bond_slave_info_query(struct net_device *bond_dev, struct ifslave *in
 static int bond_miimon_inspect(struct bonding *bond)
 {
 	int link_state, commit = 0;
+	struct list_head *iter;
 	struct slave *slave;
 	bool ignore_updelay;
 
 	ignore_updelay = !bond->curr_active_slave ? true : false;
 
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		slave->new_link = BOND_LINK_NOCHANGE;
 
 		link_state = bond_check_dev_link(bond, slave->dev, 0);
@@ -2117,9 +2130,10 @@ static int bond_miimon_inspect(struct bonding *bond)
 
 static void bond_miimon_commit(struct bonding *bond)
 {
+	struct list_head *iter;
 	struct slave *slave;
 
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		switch (slave->new_link) {
 		case BOND_LINK_NOCHANGE:
 			continue;
@@ -2513,6 +2527,7 @@ void bond_loadbalance_arp_mon(struct work_struct *work)
 	struct bonding *bond = container_of(work, struct bonding,
 					    arp_work.work);
 	struct slave *slave, *oldcurrent;
+	struct list_head *iter;
 	int do_failover = 0;
 
 	read_lock(&bond->lock);
@@ -2529,7 +2544,7 @@ void bond_loadbalance_arp_mon(struct work_struct *work)
 	 * TODO: what about up/down delay in arp mode? it wasn't here before
 	 *       so it can wait
 	 */
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		unsigned long trans_start = dev_trans_start(slave->dev);
 
 		if (slave->link != BOND_LINK_UP) {
@@ -2620,10 +2635,11 @@ re_arm:
 static int bond_ab_arp_inspect(struct bonding *bond)
 {
 	unsigned long trans_start, last_rx;
+	struct list_head *iter;
 	struct slave *slave;
 	int commit = 0;
 
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		slave->new_link = BOND_LINK_NOCHANGE;
 		last_rx = slave_last_rx(bond, slave);
 
@@ -2690,9 +2706,10 @@ static int bond_ab_arp_inspect(struct bonding *bond)
 static void bond_ab_arp_commit(struct bonding *bond)
 {
 	unsigned long trans_start;
+	struct list_head *iter;
 	struct slave *slave;
 
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		switch (slave->new_link) {
 		case BOND_LINK_NOCHANGE:
 			continue;
@@ -3156,13 +3173,14 @@ static void bond_work_cancel_all(struct bonding *bond)
 static int bond_open(struct net_device *bond_dev)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
+	struct list_head *iter;
 	struct slave *slave;
 
 	/* reset slave->backup and slave->inactive */
 	read_lock(&bond->lock);
 	if (!list_empty(&bond->slave_list)) {
 		read_lock(&bond->curr_slave_lock);
-		bond_for_each_slave(bond, slave) {
+		bond_for_each_slave(bond, slave, iter) {
 			if ((bond->params.mode == BOND_MODE_ACTIVEBACKUP)
 				&& (slave != bond->curr_active_slave)) {
 				bond_set_slave_inactive_flags(slave);
@@ -3222,12 +3240,13 @@ static struct rtnl_link_stats64 *bond_get_stats(struct net_device *bond_dev,
 {
 	struct bonding *bond = netdev_priv(bond_dev);
 	struct rtnl_link_stats64 temp;
+	struct list_head *iter;
 	struct slave *slave;
 
 	memset(stats, 0, sizeof(*stats));
 
 	read_lock_bh(&bond->lock);
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		const struct rtnl_link_stats64 *sstats =
 			dev_get_stats(slave->dev, &temp);
 
@@ -3394,6 +3413,7 @@ static void bond_change_rx_flags(struct net_device *bond_dev, int change)
 static void bond_set_rx_mode(struct net_device *bond_dev)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
+	struct list_head *iter;
 	struct slave *slave;
 
 	ASSERT_RTNL();
@@ -3405,7 +3425,7 @@ static void bond_set_rx_mode(struct net_device *bond_dev)
 			dev_mc_sync(slave->dev, bond_dev);
 		}
 	} else {
-		bond_for_each_slave(bond, slave) {
+		bond_for_each_slave(bond, slave, iter) {
 			dev_uc_sync_multiple(slave->dev, bond_dev);
 			dev_mc_sync_multiple(slave->dev, bond_dev);
 		}
@@ -3473,6 +3493,7 @@ static int bond_change_mtu(struct net_device *bond_dev, int new_mtu)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
 	struct slave *slave, *rollback_slave;
+	struct list_head *iter;
 	int res = 0;
 
 	pr_debug("bond=%p, name=%s, new_mtu=%d\n", bond,
@@ -3493,7 +3514,7 @@ static int bond_change_mtu(struct net_device *bond_dev, int new_mtu)
 	 * call to the base driver.
 	 */
 
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		pr_debug("s %p s->p %p c_m %p\n",
 			 slave,
 			 bond_prev_slave(bond, slave),
@@ -3521,7 +3542,7 @@ static int bond_change_mtu(struct net_device *bond_dev, int new_mtu)
 
 unwind:
 	/* unwind from head to the slave that failed */
-	bond_for_each_slave(bond, rollback_slave) {
+	bond_for_each_slave(bond, rollback_slave, iter) {
 		int tmp_res;
 
 		if (rollback_slave == slave)
@@ -3549,6 +3570,7 @@ static int bond_set_mac_address(struct net_device *bond_dev, void *addr)
 	struct bonding *bond = netdev_priv(bond_dev);
 	struct slave *slave, *rollback_slave;
 	struct sockaddr *sa = addr, tmp_sa;
+	struct list_head *iter;
 	int res = 0;
 
 	if (bond->params.mode == BOND_MODE_ALB)
@@ -3582,7 +3604,7 @@ static int bond_set_mac_address(struct net_device *bond_dev, void *addr)
 	 * call to the base driver.
 	 */
 
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		const struct net_device_ops *slave_ops = slave->dev->netdev_ops;
 		pr_debug("slave %p %s\n", slave, slave->dev->name);
 
@@ -3614,7 +3636,7 @@ unwind:
 	tmp_sa.sa_family = bond_dev->type;
 
 	/* unwind from head to the slave that failed */
-	bond_for_each_slave(bond, rollback_slave) {
+	bond_for_each_slave(bond, rollback_slave, iter) {
 		int tmp_res;
 
 		if (rollback_slave == slave)
@@ -3642,11 +3664,12 @@ unwind:
  */
 void bond_xmit_slave_id(struct bonding *bond, struct sk_buff *skb, int slave_id)
 {
+	struct list_head *iter;
 	struct slave *slave;
 	int i = slave_id;
 
 	/* Here we start from the slave with slave_id */
-	bond_for_each_slave_rcu(bond, slave) {
+	bond_for_each_slave_rcu(bond, slave, iter) {
 		if (--i < 0) {
 			if (slave_can_tx(slave)) {
 				bond_dev_queue_xmit(bond, skb, slave->dev);
@@ -3657,7 +3680,7 @@ void bond_xmit_slave_id(struct bonding *bond, struct sk_buff *skb, int slave_id)
 
 	/* Here we start from the first slave up to slave_id */
 	i = slave_id;
-	bond_for_each_slave_rcu(bond, slave) {
+	bond_for_each_slave_rcu(bond, slave, iter) {
 		if (--i < 0)
 			break;
 		if (slave_can_tx(slave)) {
@@ -3734,8 +3757,9 @@ static int bond_xmit_broadcast(struct sk_buff *skb, struct net_device *bond_dev)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
 	struct slave *slave = NULL;
+	struct list_head *iter;
 
-	bond_for_each_slave_rcu(bond, slave) {
+	bond_for_each_slave_rcu(bond, slave, iter) {
 		if (bond_is_last_slave(bond, slave))
 			break;
 		if (IS_UP(slave->dev) && slave->link == BOND_LINK_UP) {
@@ -3784,13 +3808,14 @@ static inline int bond_slave_override(struct bonding *bond,
 {
 	struct slave *slave = NULL;
 	struct slave *check_slave;
+	struct list_head *iter;
 	int res = 1;
 
 	if (!skb->queue_mapping)
 		return 1;
 
 	/* Find out if any slaves have the same mapping as this skb. */
-	bond_for_each_slave_rcu(bond, check_slave) {
+	bond_for_each_slave_rcu(bond, check_slave, iter) {
 		if (check_slave->queue_id == skb->queue_mapping) {
 			slave = check_slave;
 			break;
@@ -3922,6 +3947,7 @@ static int bond_ethtool_get_settings(struct net_device *bond_dev,
 {
 	struct bonding *bond = netdev_priv(bond_dev);
 	unsigned long speed = 0;
+	struct list_head *iter;
 	struct slave *slave;
 
 	ecmd->duplex = DUPLEX_UNKNOWN;
@@ -3933,7 +3959,7 @@ static int bond_ethtool_get_settings(struct net_device *bond_dev,
 	 * this is an accurate maximum.
 	 */
 	read_lock(&bond->lock);
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		if (SLAVE_IS_OK(slave)) {
 			if (slave->speed != SPEED_UNKNOWN)
 				speed += slave->speed;
diff --git a/drivers/net/bonding/bond_procfs.c b/drivers/net/bonding/bond_procfs.c
index 20a6ee25bb63..7af5646e4410 100644
--- a/drivers/net/bonding/bond_procfs.c
+++ b/drivers/net/bonding/bond_procfs.c
@@ -10,8 +10,9 @@ static void *bond_info_seq_start(struct seq_file *seq, loff_t *pos)
 	__acquires(&bond->lock)
 {
 	struct bonding *bond = seq->private;
-	loff_t off = 0;
+	struct list_head *iter;
 	struct slave *slave;
+	loff_t off = 0;
 
 	/* make sure the bond won't be taken away */
 	rcu_read_lock();
@@ -20,7 +21,7 @@ static void *bond_info_seq_start(struct seq_file *seq, loff_t *pos)
 	if (*pos == 0)
 		return SEQ_START_TOKEN;
 
-	bond_for_each_slave(bond, slave)
+	bond_for_each_slave(bond, slave, iter)
 		if (++off == *pos)
 			return slave;
 
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index c29b836749b6..e747415b5cb0 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -210,11 +210,12 @@ static ssize_t bonding_show_slaves(struct device *d,
 				   struct device_attribute *attr, char *buf)
 {
 	struct bonding *bond = to_bond(d);
+	struct list_head *iter;
 	struct slave *slave;
 	int res = 0;
 
 	read_lock(&bond->lock);
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		if (res > (PAGE_SIZE - IFNAMSIZ)) {
 			/* not enough space for another interface name */
 			if ((PAGE_SIZE - res) > 10)
@@ -656,6 +657,7 @@ static ssize_t bonding_store_arp_targets(struct device *d,
 					 const char *buf, size_t count)
 {
 	struct bonding *bond = to_bond(d);
+	struct list_head *iter;
 	struct slave *slave;
 	__be32 newtarget, *targets;
 	unsigned long *targets_rx;
@@ -688,7 +690,7 @@ static ssize_t bonding_store_arp_targets(struct device *d,
 			 &newtarget);
 		/* not to race with bond_arp_rcv */
 		write_lock_bh(&bond->lock);
-		bond_for_each_slave(bond, slave)
+		bond_for_each_slave(bond, slave, iter)
 			slave->target_last_arp_rx[ind] = jiffies;
 		targets[ind] = newtarget;
 		write_unlock_bh(&bond->lock);
@@ -714,7 +716,7 @@ static ssize_t bonding_store_arp_targets(struct device *d,
 			&newtarget);
 
 		write_lock_bh(&bond->lock);
-		bond_for_each_slave(bond, slave) {
+		bond_for_each_slave(bond, slave, iter) {
 			targets_rx = slave->target_last_arp_rx;
 			j = ind;
 			for (; (j < BOND_MAX_ARP_TARGETS-1) && targets[j+1]; j++)
@@ -1111,6 +1113,7 @@ static ssize_t bonding_store_primary(struct device *d,
 				     const char *buf, size_t count)
 {
 	struct bonding *bond = to_bond(d);
+	struct list_head *iter;
 	char ifname[IFNAMSIZ];
 	struct slave *slave;
 
@@ -1138,7 +1141,7 @@ static ssize_t bonding_store_primary(struct device *d,
 		goto out;
 	}
 
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) {
 			pr_info("%s: Setting %s as primary slave.\n",
 				bond->dev->name, slave->dev->name);
@@ -1286,6 +1289,7 @@ static ssize_t bonding_store_active_slave(struct device *d,
 {
 	struct slave *slave, *old_active, *new_active;
 	struct bonding *bond = to_bond(d);
+	struct list_head *iter;
 	char ifname[IFNAMSIZ];
 
 	if (!rtnl_trylock())
@@ -1313,7 +1317,7 @@ static ssize_t bonding_store_active_slave(struct device *d,
 		goto out;
 	}
 
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) {
 			old_active = bond->curr_active_slave;
 			new_active = slave;
@@ -1493,6 +1497,7 @@ static ssize_t bonding_show_queue_id(struct device *d,
 				     char *buf)
 {
 	struct bonding *bond = to_bond(d);
+	struct list_head *iter;
 	struct slave *slave;
 	int res = 0;
 
@@ -1500,7 +1505,7 @@ static ssize_t bonding_show_queue_id(struct device *d,
 		return restart_syscall();
 
 	read_lock(&bond->lock);
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		if (res > (PAGE_SIZE - IFNAMSIZ - 6)) {
 			/* not enough space for another interface_name:queue_id pair */
 			if ((PAGE_SIZE - res) > 10)
@@ -1529,6 +1534,7 @@ static ssize_t bonding_store_queue_id(struct device *d,
 {
 	struct slave *slave, *update_slave;
 	struct bonding *bond = to_bond(d);
+	struct list_head *iter;
 	u16 qid;
 	int ret = count;
 	char *delim;
@@ -1565,7 +1571,7 @@ static ssize_t bonding_store_queue_id(struct device *d,
 
 	/* Search for thes slave and check for duplicate qids */
 	update_slave = NULL;
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		if (sdev == slave->dev)
 			/*
 			 * We don't need to check the matching
@@ -1619,6 +1625,7 @@ static ssize_t bonding_store_slaves_active(struct device *d,
 {
 	struct bonding *bond = to_bond(d);
 	int new_value, ret = count;
+	struct list_head *iter;
 	struct slave *slave;
 
 	if (sscanf(buf, "%d", &new_value) != 1) {
@@ -1641,7 +1648,7 @@ static ssize_t bonding_store_slaves_active(struct device *d,
 	}
 
 	read_lock(&bond->lock);
-	bond_for_each_slave(bond, slave) {
+	bond_for_each_slave(bond, slave, iter) {
 		if (!bond_is_active_slave(slave)) {
 			if (new_value)
 				slave->inactive = 0;
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 0b0c3df21a89..96f571dd0bb6 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -110,15 +110,16 @@
  * bond_for_each_slave - iterate over all slaves
  * @bond:	the bond holding this list
  * @pos:	current slave
+ * @iter:	list_head * iterator
  *
  * Caller must hold bond->lock
  */
-#define bond_for_each_slave(bond, pos) \
-	list_for_each_entry(pos, &(bond)->slave_list, list)
+#define bond_for_each_slave(bond, pos, iter) \
+	netdev_for_each_lower_private((bond)->dev, pos, iter)
 
 /* Caller must have rcu_read_lock */
-#define bond_for_each_slave_rcu(bond, pos) \
-	list_for_each_entry_rcu(pos, &(bond)->slave_list, list)
+#define bond_for_each_slave_rcu(bond, pos, iter) \
+	netdev_for_each_lower_private_rcu((bond)->dev, pos, iter)
 
 #ifdef CONFIG_NET_POLL_CONTROLLER
 extern atomic_t netpoll_block_tx;
@@ -476,9 +477,10 @@ static inline void bond_destroy_proc_dir(struct bond_net *bn)
 static inline struct slave *bond_slave_has_mac(struct bonding *bond,
 					       const u8 *mac)
 {
+	struct list_head *iter;
 	struct slave *tmp;
 
-	bond_for_each_slave(bond, tmp)
+	bond_for_each_slave(bond, tmp, iter)
 		if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr))
 			return tmp;
 
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index c73cabdbd4c0..85d0cda5fbfa 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -3983,6 +3983,7 @@ static int cxgb4_inet6addr_handler(struct notifier_block *this,
 	struct net_device *event_dev;
 	int ret = NOTIFY_DONE;
 	struct bonding *bond = netdev_priv(ifa->idev->dev);
+	struct list_head *iter;
 	struct slave *slave;
 	struct pci_dev *first_pdev = NULL;
 
@@ -3995,7 +3996,7 @@ static int cxgb4_inet6addr_handler(struct notifier_block *this,
 		 * in all of them only once.
 		 */
 		read_lock(&bond->lock);
-		bond_for_each_slave(bond, slave) {
+		bond_for_each_slave(bond, slave, iter) {
 			if (!first_pdev) {
 				ret = clip_add(slave->dev, ifa, event);
 				/* If clip_add is success then only initialize
-- 
cgit 


From 544a028e65a9dadc13c3d12fb009b4bcd5338a9f Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:15 +0200
Subject: bonding: use bond_for_each_slave() in bond_uninit()

We're safe agains removal there, cause we use neighbours primitives.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_main.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 9064e24de35a..85e99aedabb1 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4090,12 +4090,13 @@ static void bond_setup(struct net_device *bond_dev)
 static void bond_uninit(struct net_device *bond_dev)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
-	struct slave *slave, *tmp_slave;
+	struct list_head *iter;
+	struct slave *slave;
 
 	bond_netpoll_cleanup(bond_dev);
 
 	/* Release the bonded slaves */
-	list_for_each_entry_safe(slave, tmp_slave, &bond->slave_list, list)
+	bond_for_each_slave(bond, slave, iter)
 		__bond_release_one(bond_dev, slave->dev, true);
 	pr_info("%s: released all slaves\n", bond_dev->name);
 
-- 
cgit 


From c33d78874eeb6c28909158719043fa2a5fd18f0a Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:16 +0200
Subject: bonding: rework bond_3ad_xmit_xor() to use bond_for_each_slave() only

Currently, there are two loops - first we find the first slave in an
aggregator after the xmit_hash_policy() returned number, and after that we
loop from that slave, over bonding head, and till that slave to find any
suitable slave to send the packet through.

Replace it by just one bond_for_each_slave() loop, which first loops
through the requested number of slaves, saving the first suitable one, and
after that we've hit the requested number of slaves to skip - search for
any up slave to send the packet through. If we don't find such kind of
slave - then just send the packet through the first suitable slave found.

Logic remains unchainged, and we skip two loops. Also, refactor it a bit
for readability.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_3ad.c | 46 ++++++++++++++++++++----------------------
 1 file changed, 22 insertions(+), 24 deletions(-)

diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index 3847aee34968..c861ee7e65ff 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -2417,15 +2417,15 @@ int bond_3ad_get_active_agg_info(struct bonding *bond, struct ad_info *ad_info)
 
 int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev)
 {
-	struct slave *slave, *start_at;
 	struct bonding *bond = netdev_priv(dev);
+	struct slave *slave, *first_ok_slave;
+	struct aggregator *agg;
+	struct ad_info ad_info;
 	struct list_head *iter;
-	int slave_agg_no;
 	int slaves_in_agg;
-	int agg_id;
-	int i;
-	struct ad_info ad_info;
+	int slave_agg_no;
 	int res = 1;
+	int agg_id;
 
 	read_lock(&bond->lock);
 	if (__bond_3ad_get_active_agg_info(bond, &ad_info)) {
@@ -2438,20 +2438,28 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev)
 	agg_id = ad_info.aggregator_id;
 
 	if (slaves_in_agg == 0) {
-		/*the aggregator is empty*/
 		pr_debug("%s: Error: active aggregator is empty\n", dev->name);
 		goto out;
 	}
 
 	slave_agg_no = bond->xmit_hash_policy(skb, slaves_in_agg);
+	first_ok_slave = NULL;
 
 	bond_for_each_slave(bond, slave, iter) {
-		struct aggregator *agg = SLAVE_AD_INFO(slave).port.aggregator;
+		agg = SLAVE_AD_INFO(slave).port.aggregator;
+		if (!agg || agg->aggregator_identifier != agg_id)
+			continue;
 
-		if (agg && (agg->aggregator_identifier == agg_id)) {
+		if (slave_agg_no >= 0) {
+			if (!first_ok_slave && SLAVE_IS_OK(slave))
+				first_ok_slave = slave;
 			slave_agg_no--;
-			if (slave_agg_no < 0)
-				break;
+			continue;
+		}
+
+		if (SLAVE_IS_OK(slave)) {
+			res = bond_dev_queue_xmit(bond, skb, slave->dev);
+			goto out;
 		}
 	}
 
@@ -2461,20 +2469,10 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev)
 		goto out;
 	}
 
-	start_at = slave;
-
-	bond_for_each_slave_from(bond, slave, i, start_at) {
-		int slave_agg_id = 0;
-		struct aggregator *agg = SLAVE_AD_INFO(slave).port.aggregator;
-
-		if (agg)
-			slave_agg_id = agg->aggregator_identifier;
-
-		if (SLAVE_IS_OK(slave) && agg && (slave_agg_id == agg_id)) {
-			res = bond_dev_queue_xmit(bond, skb, slave->dev);
-			break;
-		}
-	}
+	/* we couldn't find any suitable slave after the agg_no, so use the
+	 * first suitable found, if found. */
+	if (first_ok_slave)
+		res = bond_dev_queue_xmit(bond, skb, first_ok_slave->dev);
 
 out:
 	read_unlock(&bond->lock);
-- 
cgit 


From 6475ae4ceea2f430db1daabf6460a9f36bc97438 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:17 +0200
Subject: bonding: rework rlb_next_rx_slave() to use bond_for_each_slave()

Currently, we're using bond_for_each_slave_from(), which is really hard to
implement under RCU and/or neighbour list.

Remove it and use bond_for_each_slave() instead, taking care of the last
used slave.

Also, rename next_rx_slave to rx_slave and store the current (last)
rx_slave.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_alb.c | 41 +++++++++++++++++++++--------------------
 drivers/net/bonding/bond_alb.h |  4 +---
 2 files changed, 22 insertions(+), 23 deletions(-)

diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index f4929cee21a6..c5b85ad5554d 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -383,30 +383,31 @@ out:
 static struct slave *rlb_next_rx_slave(struct bonding *bond)
 {
 	struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond));
-	struct slave *rx_slave, *slave, *start_at;
-	int i = 0;
-
-	if (bond_info->next_rx_slave)
-		start_at = bond_info->next_rx_slave;
-	else
-		start_at = bond_first_slave(bond);
-
-	rx_slave = NULL;
+	struct slave *before = NULL, *rx_slave = NULL, *slave;
+	struct list_head *iter;
+	bool found = false;
 
-	bond_for_each_slave_from(bond, slave, i, start_at) {
-		if (SLAVE_IS_OK(slave)) {
-			if (!rx_slave) {
-				rx_slave = slave;
-			} else if (slave->speed > rx_slave->speed) {
+	bond_for_each_slave(bond, slave, iter) {
+		if (!SLAVE_IS_OK(slave))
+			continue;
+		if (!found) {
+			if (!before || before->speed < slave->speed)
+				before = slave;
+		} else {
+			if (!rx_slave || rx_slave->speed < slave->speed)
 				rx_slave = slave;
-			}
 		}
+		if (slave == bond_info->rx_slave)
+			found = true;
 	}
+	/* we didn't find anything after the current or we have something
+	 * better before and up to the current slave
+	 */
+	if (!rx_slave || (before && rx_slave->speed < before->speed))
+		rx_slave = before;
 
-	if (rx_slave) {
-		slave = bond_next_slave(bond, rx_slave);
-		bond_info->next_rx_slave = slave;
-	}
+	if (rx_slave)
+		bond_info->rx_slave = rx_slave;
 
 	return rx_slave;
 }
@@ -1611,7 +1612,7 @@ void bond_alb_deinit_slave(struct bonding *bond, struct slave *slave)
 	tlb_clear_slave(bond, slave, 0);
 
 	if (bond->alb_info.rlb_enabled) {
-		bond->alb_info.next_rx_slave = NULL;
+		bond->alb_info.rx_slave = NULL;
 		rlb_clear_slave(bond, slave);
 	}
 }
diff --git a/drivers/net/bonding/bond_alb.h b/drivers/net/bonding/bond_alb.h
index c5eff5dafdfe..4226044efd08 100644
--- a/drivers/net/bonding/bond_alb.h
+++ b/drivers/net/bonding/bond_alb.h
@@ -154,9 +154,7 @@ struct alb_bond_info {
 	u8			rx_ntt;	/* flag - need to transmit
 					 * to all rx clients
 					 */
-	struct slave		*next_rx_slave;/* next slave to be assigned
-						* to a new rx client for
-						*/
+	struct slave		*rx_slave;/* last slave to xmit from */
 	u8			primary_is_promisc;	   /* boolean */
 	u32			rlb_promisc_timeout_counter;/* counts primary
 							     * promiscuity time
-- 
cgit 


From 77140d2951432487d012dbcdcf124168eafc49ca Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:18 +0200
Subject: bonding: rework bond_find_best_slave() to use bond_for_each_slave()

bond_find_best_slave() does not have to be balanced - i.e. return the slave
that is *after* some other slave, but rather return the best slave that
suits, except of bond->primary_slave - in which case we just return it if
it's suitable.

After that we just look through all the slaves and return either first up
slave or the slave whose link came back earliest.

We also don't care about curr_active_slave lock cause we use it in
bond_should_change_active() only and there we take it right away - i.e. it
won't go away.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_main.c | 43 ++++++++++++-----------------------------
 1 file changed, 12 insertions(+), 31 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 85e99aedabb1..6abbfaca0b93 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -785,43 +785,24 @@ static bool bond_should_change_active(struct bonding *bond)
 /**
  * find_best_interface - select the best available slave to be the active one
  * @bond: our bonding struct
- *
- * Warning: Caller must hold curr_slave_lock for writing.
  */
 static struct slave *bond_find_best_slave(struct bonding *bond)
 {
-	struct slave *new_active, *old_active;
-	struct slave *bestslave = NULL;
+	struct slave *slave, *bestslave = NULL;
+	struct list_head *iter;
 	int mintime = bond->params.updelay;
-	int i;
 
-	new_active = bond->curr_active_slave;
-
-	if (!new_active) { /* there were no active slaves left */
-		new_active = bond_first_slave(bond);
-		if (!new_active)
-			return NULL; /* still no slave, return NULL */
-	}
+	if (bond->primary_slave && bond->primary_slave->link == BOND_LINK_UP &&
+	    bond_should_change_active(bond))
+		return bond->primary_slave;
 
-	if ((bond->primary_slave) &&
-	    bond->primary_slave->link == BOND_LINK_UP &&
-	    bond_should_change_active(bond)) {
-		new_active = bond->primary_slave;
-	}
-
-	/* remember where to stop iterating over the slaves */
-	old_active = new_active;
-
-	bond_for_each_slave_from(bond, new_active, i, old_active) {
-		if (new_active->link == BOND_LINK_UP) {
-			return new_active;
-		} else if (new_active->link == BOND_LINK_BACK &&
-			   IS_UP(new_active->dev)) {
-			/* link up, but waiting for stabilization */
-			if (new_active->delay < mintime) {
-				mintime = new_active->delay;
-				bestslave = new_active;
-			}
+	bond_for_each_slave(bond, slave, iter) {
+		if (slave->link == BOND_LINK_UP)
+			return slave;
+		if (slave->link == BOND_LINK_BACK && IS_UP(slave->dev) &&
+		    slave->delay < mintime) {
+			mintime = slave->delay;
+			bestslave = slave;
 		}
 	}
 
-- 
cgit 


From 4087df87b868cef0dd19a9409b40fb9415503552 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:19 +0200
Subject: bonding: rework bond_ab_arp_probe() to use bond_for_each_slave()

Currently it uses the hard-to-rcuify bond_for_each_slave_from(), and also
it doesn't check every slave for disrepencies between the actual
IS_UP(slave) and the slave->link == BOND_LINK_UP, but only till we find the
next suitable slave.

Fix this by using bond_for_each_slave() and storing the first good slave in
*before till we find the current_arp_slave, after that we store the first good
slave in new_slave. If new_slave is empty - use the slave stored in before,
and if it's also empty - then we didn't find any suitable slave.

Also, in the meanwhile, check for each slave status.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_main.c | 38 ++++++++++++++++++++++++--------------
 1 file changed, 24 insertions(+), 14 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 6abbfaca0b93..3c96b1b10ba4 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2761,8 +2761,9 @@ do_failover:
  */
 static void bond_ab_arp_probe(struct bonding *bond)
 {
-	struct slave *slave, *next_slave;
-	int i;
+	struct slave *slave, *before = NULL, *new_slave = NULL;
+	struct list_head *iter;
+	bool found = false;
 
 	read_lock(&bond->curr_slave_lock);
 
@@ -2792,18 +2793,12 @@ static void bond_ab_arp_probe(struct bonding *bond)
 
 	bond_set_slave_inactive_flags(bond->current_arp_slave);
 
-	/* search for next candidate */
-	next_slave = bond_next_slave(bond, bond->current_arp_slave);
-	bond_for_each_slave_from(bond, slave, i, next_slave) {
-		if (IS_UP(slave->dev)) {
-			slave->link = BOND_LINK_BACK;
-			bond_set_slave_active_flags(slave);
-			bond_arp_send_all(bond, slave);
-			slave->jiffies = jiffies;
-			bond->current_arp_slave = slave;
-			break;
-		}
+	bond_for_each_slave(bond, slave, iter) {
+		if (!found && !before && IS_UP(slave->dev))
+			before = slave;
 
+		if (found && !new_slave && IS_UP(slave->dev))
+			new_slave = slave;
 		/* if the link state is up at this point, we
 		 * mark it down - this can happen if we have
 		 * simultaneous link failures and
@@ -2811,7 +2806,7 @@ static void bond_ab_arp_probe(struct bonding *bond)
 		 * one the current slave so it is still marked
 		 * up when it is actually down
 		 */
-		if (slave->link == BOND_LINK_UP) {
+		if (!IS_UP(slave->dev) && slave->link == BOND_LINK_UP) {
 			slave->link = BOND_LINK_DOWN;
 			if (slave->link_failure_count < UINT_MAX)
 				slave->link_failure_count++;
@@ -2821,7 +2816,22 @@ static void bond_ab_arp_probe(struct bonding *bond)
 			pr_info("%s: backup interface %s is now down.\n",
 				bond->dev->name, slave->dev->name);
 		}
+		if (slave == bond->current_arp_slave)
+			found = true;
 	}
+
+	if (!new_slave && before)
+		new_slave = before;
+
+	if (!new_slave)
+		return;
+
+	new_slave->link = BOND_LINK_BACK;
+	bond_set_slave_active_flags(new_slave);
+	bond_arp_send_all(bond, new_slave);
+	new_slave->jiffies = jiffies;
+	bond->current_arp_slave = new_slave;
+
 }
 
 void bond_activebackup_arp_mon(struct work_struct *work)
-- 
cgit 


From b386c58b85b23c3a73baa014d01d2943ca8260cd Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:20 +0200
Subject: bonding: remove unused bond_for_each_slave_from()

It has no users, so we can remove it.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bonding.h | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 96f571dd0bb6..7c8a4b128f65 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -93,19 +93,6 @@
 	(bond_is_first_slave(bond, pos) ? bond_last_slave(bond) : \
 					  bond_to_slave((pos)->list.prev))
 
-/**
- * bond_for_each_slave_from - iterate the slaves list from a starting point
- * @bond:	the bond holding this list.
- * @pos:	current slave.
- * @cnt:	counter for max number of moves
- * @start:	starting point.
- *
- * Caller must hold bond->lock
- */
-#define bond_for_each_slave_from(bond, pos, cnt, start) \
-	for (cnt = 0, pos = start; pos && cnt < (bond)->slave_cnt; \
-	     cnt++, pos = bond_next_slave(bond, pos))
-
 /**
  * bond_for_each_slave - iterate over all slaves
  * @bond:	the bond holding this list
-- 
cgit 


From 0965a1f3f8757a2c20a16a83bc18279009d79a26 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:21 +0200
Subject: bonding: add bond_has_slaves() and use it

Currently we verify if we have slaves by checking if bond->slave_list is
empty. Create a define bond_has_slaves() and use it, a bit more readable
and easier to change in the future.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_3ad.c   |  2 +-
 drivers/net/bonding/bond_alb.c   |  8 ++++----
 drivers/net/bonding/bond_main.c  | 32 ++++++++++++++++----------------
 drivers/net/bonding/bond_sysfs.c |  4 ++--
 drivers/net/bonding/bonding.h    |  2 ++
 5 files changed, 25 insertions(+), 23 deletions(-)

diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index c861ee7e65ff..1337eafe4311 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -2117,7 +2117,7 @@ void bond_3ad_state_machine_handler(struct work_struct *work)
 	read_lock(&bond->lock);
 
 	//check if there are any slaves
-	if (list_empty(&bond->slave_list))
+	if (!bond_has_slaves(bond))
 		goto re_arm;
 
 	// check if agg_select_timer timer after initialize is timed out
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index c5b85ad5554d..e96041816b5b 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -1178,7 +1178,7 @@ static int alb_handle_addr_collision_on_attach(struct bonding *bond, struct slav
 	struct slave *tmp_slave1, *free_mac_slave = NULL;
 	struct list_head *iter;
 
-	if (list_empty(&bond->slave_list)) {
+	if (!bond_has_slaves(bond)) {
 		/* this is the first slave */
 		return 0;
 	}
@@ -1469,7 +1469,7 @@ void bond_alb_monitor(struct work_struct *work)
 
 	read_lock(&bond->lock);
 
-	if (list_empty(&bond->slave_list)) {
+	if (!bond_has_slaves(bond)) {
 		bond_info->tx_rebalance_counter = 0;
 		bond_info->lp_counter = 0;
 		goto re_arm;
@@ -1606,7 +1606,7 @@ int bond_alb_init_slave(struct bonding *bond, struct slave *slave)
  */
 void bond_alb_deinit_slave(struct bonding *bond, struct slave *slave)
 {
-	if (!list_empty(&bond->slave_list))
+	if (bond_has_slaves(bond))
 		alb_change_hw_addr_on_detach(bond, slave);
 
 	tlb_clear_slave(bond, slave, 0);
@@ -1676,7 +1676,7 @@ void bond_alb_handle_active_change(struct bonding *bond, struct slave *new_slave
 	swap_slave = bond->curr_active_slave;
 	rcu_assign_pointer(bond->curr_active_slave, new_slave);
 
-	if (!new_slave || list_empty(&bond->slave_list))
+	if (!new_slave || !bond_has_slaves(bond))
 		return;
 
 	/* set the new curr_active_slave to the bonds mac address
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 3c96b1b10ba4..06ffc8ace54c 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -391,7 +391,7 @@ static int bond_set_carrier(struct bonding *bond)
 	struct list_head *iter;
 	struct slave *slave;
 
-	if (list_empty(&bond->slave_list))
+	if (!bond_has_slaves(bond))
 		goto down;
 
 	if (bond->params.mode == BOND_MODE_8023AD)
@@ -1085,7 +1085,7 @@ static netdev_features_t bond_fix_features(struct net_device *dev,
 	netdev_features_t mask;
 	struct slave *slave;
 
-	if (list_empty(&bond->slave_list)) {
+	if (!bond_has_slaves(bond)) {
 		/* Disable adding VLANs to empty bond. But why? --mq */
 		features |= NETIF_F_VLAN_CHALLENGED;
 		return features;
@@ -1120,7 +1120,7 @@ static void bond_compute_features(struct bonding *bond)
 	unsigned int gso_max_size = GSO_MAX_SIZE;
 	u16 gso_max_segs = GSO_MAX_SEGS;
 
-	if (list_empty(&bond->slave_list))
+	if (!bond_has_slaves(bond))
 		goto done;
 
 	bond_for_each_slave(bond, slave, iter) {
@@ -1310,7 +1310,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 	 * bond ether type mutual exclusion - don't allow slaves of dissimilar
 	 * ether type (eg ARPHRD_ETHER and ARPHRD_INFINIBAND) share the same bond
 	 */
-	if (list_empty(&bond->slave_list)) {
+	if (!bond_has_slaves(bond)) {
 		if (bond_dev->type != slave_dev->type) {
 			pr_debug("%s: change device type from %d to %d\n",
 				 bond_dev->name,
@@ -1349,7 +1349,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 	}
 
 	if (slave_ops->ndo_set_mac_address == NULL) {
-		if (list_empty(&bond->slave_list)) {
+		if (!bond_has_slaves(bond)) {
 			pr_warning("%s: Warning: The first slave device specified does not support setting the MAC address. Setting fail_over_mac to active.",
 				   bond_dev->name);
 			bond->params.fail_over_mac = BOND_FOM_ACTIVE;
@@ -1365,7 +1365,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 
 	/* If this is the first slave, then we need to set the master's hardware
 	 * address to be the same as the slave's. */
-	if (list_empty(&bond->slave_list) &&
+	if (!bond_has_slaves(bond) &&
 	    bond->dev->addr_assign_type == NET_ADDR_RANDOM)
 		bond_set_dev_addr(bond->dev, slave_dev);
 
@@ -1696,7 +1696,7 @@ err_free:
 err_undo_flags:
 	bond_compute_features(bond);
 	/* Enslave of first slave has failed and we need to fix master's mac */
-	if (list_empty(&bond->slave_list) &&
+	if (!bond_has_slaves(bond) &&
 	    ether_addr_equal(bond_dev->dev_addr, slave_dev->dev_addr))
 		eth_hw_addr_random(bond_dev);
 
@@ -1776,7 +1776,7 @@ static int __bond_release_one(struct net_device *bond_dev,
 
 	if (!all && !bond->params.fail_over_mac) {
 		if (ether_addr_equal(bond_dev->dev_addr, slave->perm_hwaddr) &&
-		    !list_empty(&bond->slave_list))
+		    bond_has_slaves(bond))
 			pr_warn("%s: Warning: the permanent HWaddr of %s - %pM - is still in use by %s. Set the HWaddr of %s to a different address to avoid conflicts.\n",
 				   bond_dev->name, slave_dev->name,
 				   slave->perm_hwaddr,
@@ -1819,7 +1819,7 @@ static int __bond_release_one(struct net_device *bond_dev,
 		write_lock_bh(&bond->lock);
 	}
 
-	if (list_empty(&bond->slave_list)) {
+	if (!bond_has_slaves(bond)) {
 		bond_set_carrier(bond);
 		eth_hw_addr_random(bond_dev);
 
@@ -1835,7 +1835,7 @@ static int __bond_release_one(struct net_device *bond_dev,
 	unblock_netpoll_tx();
 	synchronize_rcu();
 
-	if (list_empty(&bond->slave_list)) {
+	if (!bond_has_slaves(bond)) {
 		call_netdevice_notifiers(NETDEV_CHANGEADDR, bond->dev);
 		call_netdevice_notifiers(NETDEV_RELEASE, bond->dev);
 	}
@@ -1904,7 +1904,7 @@ static int  bond_release_and_destroy(struct net_device *bond_dev,
 	int ret;
 
 	ret = bond_release(bond_dev, slave_dev);
-	if (ret == 0 && list_empty(&bond->slave_list)) {
+	if (ret == 0 && !bond_has_slaves(bond)) {
 		bond_dev->priv_flags |= IFF_DISABLE_NETPOLL;
 		pr_info("%s: destroying bond %s.\n",
 			bond_dev->name, bond_dev->name);
@@ -2219,7 +2219,7 @@ void bond_mii_monitor(struct work_struct *work)
 
 	delay = msecs_to_jiffies(bond->params.miimon);
 
-	if (list_empty(&bond->slave_list))
+	if (!bond_has_slaves(bond))
 		goto re_arm;
 
 	should_notify_peers = bond_should_notify_peers(bond);
@@ -2513,7 +2513,7 @@ void bond_loadbalance_arp_mon(struct work_struct *work)
 
 	read_lock(&bond->lock);
 
-	if (list_empty(&bond->slave_list))
+	if (!bond_has_slaves(bond))
 		goto re_arm;
 
 	oldcurrent = bond->curr_active_slave;
@@ -2845,7 +2845,7 @@ void bond_activebackup_arp_mon(struct work_struct *work)
 
 	delta_in_ticks = msecs_to_jiffies(bond->params.arp_interval);
 
-	if (list_empty(&bond->slave_list))
+	if (!bond_has_slaves(bond))
 		goto re_arm;
 
 	should_notify_peers = bond_should_notify_peers(bond);
@@ -3169,7 +3169,7 @@ static int bond_open(struct net_device *bond_dev)
 
 	/* reset slave->backup and slave->inactive */
 	read_lock(&bond->lock);
-	if (!list_empty(&bond->slave_list)) {
+	if (bond_has_slaves(bond)) {
 		read_lock(&bond->curr_slave_lock);
 		bond_for_each_slave(bond, slave, iter) {
 			if ((bond->params.mode == BOND_MODE_ACTIVEBACKUP)
@@ -3892,7 +3892,7 @@ static netdev_tx_t bond_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		return NETDEV_TX_BUSY;
 
 	rcu_read_lock();
-	if (!list_empty(&bond->slave_list))
+	if (bond_has_slaves(bond))
 		ret = __bond_start_xmit(skb, dev);
 	else
 		kfree_skb(skb);
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index e747415b5cb0..04d95d6f6c63 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -327,7 +327,7 @@ static ssize_t bonding_store_mode(struct device *d,
 		goto out;
 	}
 
-	if (!list_empty(&bond->slave_list)) {
+	if (bond_has_slaves(bond)) {
 		pr_err("unable to update mode of %s because it has slaves.\n",
 			bond->dev->name);
 		ret = -EPERM;
@@ -523,7 +523,7 @@ static ssize_t bonding_store_fail_over_mac(struct device *d,
 	if (!rtnl_trylock())
 		return restart_syscall();
 
-	if (!list_empty(&bond->slave_list)) {
+	if (bond_has_slaves(bond)) {
 		pr_err("%s: Can't alter fail_over_mac with slaves in bond.\n",
 		       bond->dev->name);
 		ret = -EPERM;
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 7c8a4b128f65..bcef15ec3459 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -72,6 +72,8 @@
 	res; })
 
 /* slave list primitives */
+#define bond_has_slaves(bond) !list_empty(&(bond)->slave_list)
+
 #define bond_to_slave(ptr) list_entry(ptr, struct slave, list)
 
 /* IMPORTANT: bond_first/last_slave can return NULL in case of an empty list */
-- 
cgit 


From 70039aa7c6c182c488ec23a9669d9f6b21aebe16 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:22 +0200
Subject: bonding: convert bond_has_slaves() to use the neighbour list

The same way as it was used for its own slave_list.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bonding.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index bcef15ec3459..170c7fce1b44 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -72,7 +72,7 @@
 	res; })
 
 /* slave list primitives */
-#define bond_has_slaves(bond) !list_empty(&(bond)->slave_list)
+#define bond_has_slaves(bond) !list_empty(&(bond)->dev->adj_list.lower)
 
 #define bond_to_slave(ptr) list_entry(ptr, struct slave, list)
 
-- 
cgit 


From b6ccba4c681fdaf0070e580bf951badf7edc860b Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:23 +0200
Subject: net: add a possibility to get private from netdev_adjacent->list

It will be useful to get first/last element.

CC: "David S. Miller" <davem@davemloft.net>
CC: Eric Dumazet <edumazet@google.com>
CC: Jiri Pirko <jiri@resnulli.us>
CC: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdevice.h |  1 +
 net/core/dev.c            | 10 ++++++++++
 2 files changed, 11 insertions(+)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 168974e40cf5..b4cfb63f264e 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2850,6 +2850,7 @@ extern void *netdev_lower_get_next_private_rcu(struct net_device *dev,
 	     priv; \
 	     priv = netdev_lower_get_next_private_rcu(dev, &(iter)))
 
+extern void *netdev_adjacent_get_private(struct list_head *adj_list);
 extern struct net_device *netdev_master_upper_dev_get(struct net_device *dev);
 extern struct net_device *netdev_master_upper_dev_get_rcu(struct net_device *dev);
 extern int netdev_upper_dev_link(struct net_device *dev,
diff --git a/net/core/dev.c b/net/core/dev.c
index 0aa844aae40b..acc11810805f 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4466,6 +4466,16 @@ struct net_device *netdev_master_upper_dev_get(struct net_device *dev)
 }
 EXPORT_SYMBOL(netdev_master_upper_dev_get);
 
+void *netdev_adjacent_get_private(struct list_head *adj_list)
+{
+	struct netdev_adjacent *adj;
+
+	adj = list_entry(adj_list, struct netdev_adjacent, list);
+
+	return adj->private;
+}
+EXPORT_SYMBOL(netdev_adjacent_get_private);
+
 /**
  * netdev_all_upper_get_next_dev_rcu - Get the next dev from upper list
  * @dev: device
-- 
cgit 


From 5a52405a30abf70a60312ad4231385699f09cb85 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:24 +0200
Subject: bonding: convert first/last slave logic to use neighbours

For that, use netdev_adjacent_get_private(list_head) on bond's lower
neighbour list members. Also, add a small macro - bond_slave_list(bond),
which returns the bond list via neighbour list.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bonding.h | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 170c7fce1b44..3eb464cb8744 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -72,19 +72,24 @@
 	res; })
 
 /* slave list primitives */
-#define bond_has_slaves(bond) !list_empty(&(bond)->dev->adj_list.lower)
+#define bond_slave_list(bond) (&(bond)->dev->adj_list.lower)
+
+#define bond_has_slaves(bond) !list_empty(bond_slave_list(bond))
 
 #define bond_to_slave(ptr) list_entry(ptr, struct slave, list)
 
 /* IMPORTANT: bond_first/last_slave can return NULL in case of an empty list */
 #define bond_first_slave(bond) \
-	list_first_entry_or_null(&(bond)->slave_list, struct slave, list)
+	(bond_has_slaves(bond) ? \
+		netdev_adjacent_get_private(bond_slave_list(bond)->next) : \
+		NULL)
 #define bond_last_slave(bond) \
-	(list_empty(&(bond)->slave_list) ? NULL : \
-					   bond_to_slave((bond)->slave_list.prev))
+	(bond_has_slaves(bond) ? \
+		netdev_adjacent_get_private(bond_slave_list(bond)->prev) : \
+		NULL)
 
-#define bond_is_first_slave(bond, pos) ((pos)->list.prev == &(bond)->slave_list)
-#define bond_is_last_slave(bond, pos) ((pos)->list.next == &(bond)->slave_list)
+#define bond_is_first_slave(bond, pos) (pos == bond_first_slave(bond))
+#define bond_is_last_slave(bond, pos) (pos == bond_last_slave(bond))
 
 /* Since bond_first/last_slave can return NULL, these can return NULL too */
 #define bond_next_slave(bond, pos) \
-- 
cgit 


From c8c23903f12a62708606b5cdba8cd8550cd6bdcd Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:25 +0200
Subject: bonding: remove bond_prev_slave()

We don't really need it, and it's really hard to RCUify the list->prev.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_main.c | 9 +++------
 drivers/net/bonding/bonding.h   | 4 ----
 2 files changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 06ffc8ace54c..6aa345a6a0bc 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1255,7 +1255,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
 	const struct net_device_ops *slave_ops = slave_dev->netdev_ops;
-	struct slave *new_slave = NULL;
+	struct slave *new_slave = NULL, *prev_slave;
 	struct sockaddr addr;
 	int link_reporting;
 	int res = 0, i;
@@ -1472,6 +1472,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 
 	write_lock_bh(&bond->lock);
 
+	prev_slave = bond_last_slave(bond);
 	bond_attach_slave(bond, new_slave);
 
 	new_slave->delay = 0;
@@ -1566,9 +1567,6 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 			 */
 			bond_3ad_initialize(bond, 1000/AD_TIMER_INTERVAL);
 		} else {
-			struct slave *prev_slave;
-
-			prev_slave = bond_prev_slave(bond, new_slave);
 			SLAVE_AD_INFO(new_slave).id =
 				SLAVE_AD_INFO(prev_slave).id + 1;
 		}
@@ -3506,9 +3504,8 @@ static int bond_change_mtu(struct net_device *bond_dev, int new_mtu)
 	 */
 
 	bond_for_each_slave(bond, slave, iter) {
-		pr_debug("s %p s->p %p c_m %p\n",
+		pr_debug("s %p c_m %p\n",
 			 slave,
-			 bond_prev_slave(bond, slave),
 			 slave->dev->netdev_ops->ndo_change_mtu);
 
 		res = dev_set_mtu(slave->dev, new_mtu);
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 3eb464cb8744..454d6affa06a 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -96,10 +96,6 @@
 	(bond_is_last_slave(bond, pos) ? bond_first_slave(bond) : \
 					 bond_to_slave((pos)->list.next))
 
-#define bond_prev_slave(bond, pos) \
-	(bond_is_first_slave(bond, pos) ? bond_last_slave(bond) : \
-					  bond_to_slave((pos)->list.prev))
-
 /**
  * bond_for_each_slave - iterate over all slaves
  * @bond:	the bond holding this list
-- 
cgit 


From 18e1e9bc5d1b9b89853a23aaeeed39686a95551b Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:26 +0200
Subject: bonding: add __bond_next_slave() which uses neighbours

Add a new function, __bond_next_slave(), which uses neighbours to find the
next slave after the slave provided. It will be further used to gradually
go start using neighbour netdev_adjacent infrastructure instead of
bonding's own lists.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bonding.h | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 454d6affa06a..4a3fbe307ee8 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -249,6 +249,34 @@ struct bonding {
 #define bond_slave_get_rtnl(dev) \
 	((struct slave *) rtnl_dereference(dev->rx_handler_data))
 
+/**
+ * __bond_next_slave - get the next slave after the one provided
+ * @bond - bonding struct
+ * @slave - the slave provided
+ *
+ * Returns the next slave after the slave provided, first slave if the
+ * slave provided is the last slave and NULL if slave is not found
+ */
+static inline struct slave *__bond_next_slave(struct bonding *bond,
+					      struct slave *slave)
+{
+	struct slave *slave_iter;
+	struct list_head *iter;
+	bool found = false;
+
+	netdev_for_each_lower_private(bond->dev, slave_iter, iter) {
+		if (found)
+			return slave_iter;
+		if (slave_iter == slave)
+			found = true;
+	}
+
+	if (found)
+		return bond_first_slave(bond);
+
+	return NULL;
+}
+
 /**
  * Returns NULL if the net_device does not belong to any of the bond's slaves
  *
-- 
cgit 


From 344f3297629e409675120998d1cfe4d21c34fbaa Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:27 +0200
Subject: bonding: use neighbours for bond_next_slave()

Use the new function __bond_next_slave().

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bonding.h | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 4a3fbe307ee8..f070557c21ea 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -76,8 +76,6 @@
 
 #define bond_has_slaves(bond) !list_empty(bond_slave_list(bond))
 
-#define bond_to_slave(ptr) list_entry(ptr, struct slave, list)
-
 /* IMPORTANT: bond_first/last_slave can return NULL in case of an empty list */
 #define bond_first_slave(bond) \
 	(bond_has_slaves(bond) ? \
@@ -92,9 +90,7 @@
 #define bond_is_last_slave(bond, pos) (pos == bond_last_slave(bond))
 
 /* Since bond_first/last_slave can return NULL, these can return NULL too */
-#define bond_next_slave(bond, pos) \
-	(bond_is_last_slave(bond, pos) ? bond_first_slave(bond) : \
-					 bond_to_slave((pos)->list.next))
+#define bond_next_slave(bond, pos) __bond_next_slave(bond, pos)
 
 /**
  * bond_for_each_slave - iterate over all slaves
-- 
cgit 


From 4fee991a4689ca64abea90814e0b3c6d30a3c62f Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:28 +0200
Subject: bonding: remove slave lists

And all the initialization.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_main.c | 4 ----
 drivers/net/bonding/bonding.h   | 2 --
 2 files changed, 6 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 6aa345a6a0bc..d49404509814 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -972,7 +972,6 @@ void bond_select_active_slave(struct bonding *bond)
  */
 static void bond_attach_slave(struct bonding *bond, struct slave *new_slave)
 {
-	list_add_tail_rcu(&new_slave->list, &bond->slave_list);
 	bond->slave_cnt++;
 }
 
@@ -988,7 +987,6 @@ static void bond_attach_slave(struct bonding *bond, struct slave *new_slave)
  */
 static void bond_detach_slave(struct bonding *bond, struct slave *slave)
 {
-	list_del_rcu(&slave->list);
 	bond->slave_cnt--;
 }
 
@@ -1374,7 +1372,6 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 		res = -ENOMEM;
 		goto err_undo_flags;
 	}
-	INIT_LIST_HEAD(&new_slave->list);
 	/*
 	 * Set the new_slave's queue_id to be zero.  Queue ID mapping
 	 * is set via sysfs or module option if desired.
@@ -4022,7 +4019,6 @@ static void bond_setup(struct net_device *bond_dev)
 	/* initialize rwlocks */
 	rwlock_init(&bond->lock);
 	rwlock_init(&bond->curr_slave_lock);
-	INIT_LIST_HEAD(&bond->slave_list);
 	bond->params = bonding_defaults;
 
 	/* Initialize pointers */
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index f070557c21ea..e5c32a61dacc 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -165,7 +165,6 @@ struct bond_parm_tbl {
 
 struct slave {
 	struct net_device *dev; /* first - useful for panic debug */
-	struct list_head list;
 	struct bonding *bond; /* our master */
 	int    delay;
 	unsigned long jiffies;
@@ -205,7 +204,6 @@ struct slave {
  */
 struct bonding {
 	struct   net_device *dev; /* first - useful for panic debug */
-	struct   list_head slave_list;
 	struct   slave *curr_active_slave;
 	struct   slave *current_arp_slave;
 	struct   slave *primary_slave;
-- 
cgit 


From 5df27e6cb2d302e90366848bc3c2bb73c41287fb Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:29 +0200
Subject: vlan: link the upper neighbour only after registering

Otherwise users might access it without being fully registered, as per
sysfs - it only inits in register_netdevice(), so is unusable till it is
called.

CC: Patrick McHardy <kaber@trash.net>
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/8021q/vlan.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 61fc573f1142..69b4a352021f 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -169,13 +169,13 @@ int register_vlan_dev(struct net_device *dev)
 	if (err < 0)
 		goto out_uninit_mvrp;
 
-	err = netdev_upper_dev_link(real_dev, dev);
-	if (err)
-		goto out_uninit_mvrp;
-
 	err = register_netdevice(dev);
 	if (err < 0)
-		goto out_upper_dev_unlink;
+		goto out_uninit_mvrp;
+
+	err = netdev_upper_dev_link(real_dev, dev);
+	if (err)
+		goto out_unregister_netdev;
 
 	/* Account for reference in struct vlan_dev_priv */
 	dev_hold(real_dev);
@@ -191,8 +191,8 @@ int register_vlan_dev(struct net_device *dev)
 
 	return 0;
 
-out_upper_dev_unlink:
-	netdev_upper_dev_unlink(real_dev, dev);
+out_unregister_netdev:
+	unregister_netdevice(dev);
 out_uninit_mvrp:
 	if (grp->nr_vlan_devs == 0)
 		vlan_mvrp_uninit_applicant(real_dev);
-- 
cgit 


From 47701a36a3ed6d97e5bbe7ad72cceb49ca329d00 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:30 +0200
Subject: vlan: unlink the upper neighbour before unregistering

On netdev unregister we're removing also all of its sysfs-associated stuff,
including the sysfs symlinks that are controlled by netdev neighbour code.
Also, it's a subtle race condition - cause we can still access it after
unregistering.

Move the unlinking right before the unregistering to fix both.

CC: Patrick McHardy <kaber@trash.net>
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/8021q/vlan.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 69b4a352021f..b3d17d1c49c3 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -98,14 +98,14 @@ void unregister_vlan_dev(struct net_device *dev, struct list_head *head)
 		vlan_gvrp_request_leave(dev);
 
 	vlan_group_set_device(grp, vlan->vlan_proto, vlan_id, NULL);
+
+	netdev_upper_dev_unlink(real_dev, dev);
 	/* Because unregister_netdevice_queue() makes sure at least one rcu
 	 * grace period is respected before device freeing,
 	 * we dont need to call synchronize_net() here.
 	 */
 	unregister_netdevice_queue(dev, head);
 
-	netdev_upper_dev_unlink(real_dev, dev);
-
 	if (grp->nr_vlan_devs == 0) {
 		vlan_mvrp_uninit_applicant(real_dev);
 		vlan_gvrp_uninit_applicant(real_dev);
-- 
cgit 


From 842d67a7b34ea735155812ecf0671a481284f358 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:31 +0200
Subject: net: expose the master link to sysfs, and remove it from bond

Currently, we can have only one master upper neighbour, so it would be
useful to create a symlink to it in the sysfs device directory, the way
that bonding now does it, for every device. Lower devices from
bridge/team/etc will automagically get it, so we could rely on it.

Also, remove the same functionality from bonding.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: "David S. Miller" <davem@davemloft.net>
CC: Eric Dumazet <edumazet@google.com>
CC: Jiri Pirko <jiri@resnulli.us>
CC: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_sysfs.c | 20 +++-----------------
 net/core/dev.c                   | 19 +++++++++++++++++--
 2 files changed, 20 insertions(+), 19 deletions(-)

diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 04d95d6f6c63..1c5724672204 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -172,24 +172,11 @@ int bond_create_slave_symlinks(struct net_device *master,
 			       struct net_device *slave)
 {
 	char linkname[IFNAMSIZ+7];
-	int ret = 0;
 
-	/* first, create a link from the slave back to the master */
-	ret = sysfs_create_link(&(slave->dev.kobj), &(master->dev.kobj),
-				"master");
-	if (ret)
-		return ret;
-	/* next, create a link from the master to the slave */
+	/* create a link from the master to the slave */
 	sprintf(linkname, "slave_%s", slave->name);
-	ret = sysfs_create_link(&(master->dev.kobj), &(slave->dev.kobj),
-				linkname);
-
-	/* free the master link created earlier in case of error */
-	if (ret)
-		sysfs_remove_link(&(slave->dev.kobj), "master");
-
-	return ret;
-
+	return sysfs_create_link(&(master->dev.kobj), &(slave->dev.kobj),
+				 linkname);
 }
 
 void bond_destroy_slave_symlinks(struct net_device *master,
@@ -197,7 +184,6 @@ void bond_destroy_slave_symlinks(struct net_device *master,
 {
 	char linkname[IFNAMSIZ+7];
 
-	sysfs_remove_link(&(slave->dev.kobj), "master");
 	sprintf(linkname, "slave_%s", slave->name);
 	sysfs_remove_link(&(master->dev.kobj), linkname);
 }
diff --git a/net/core/dev.c b/net/core/dev.c
index acc11810805f..de443ee1b046 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4584,6 +4584,7 @@ static int __netdev_adjacent_dev_insert(struct net_device *dev,
 					void *private, bool master)
 {
 	struct netdev_adjacent *adj;
+	int ret;
 
 	adj = __netdev_find_adj(dev, adj_dev, dev_list);
 
@@ -4606,12 +4607,23 @@ static int __netdev_adjacent_dev_insert(struct net_device *dev,
 		 adj_dev->name, dev->name, adj_dev->name);
 
 	/* Ensure that master link is always the first item in list. */
-	if (master)
+	if (master) {
+		ret = sysfs_create_link(&(dev->dev.kobj),
+					&(adj_dev->dev.kobj), "master");
+		if (ret)
+			goto free_adj;
+
 		list_add_rcu(&adj->list, dev_list);
-	else
+	} else {
 		list_add_tail_rcu(&adj->list, dev_list);
+	}
 
 	return 0;
+
+free_adj:
+	kfree(adj);
+
+	return ret;
 }
 
 void __netdev_adjacent_dev_remove(struct net_device *dev,
@@ -4635,6 +4647,9 @@ void __netdev_adjacent_dev_remove(struct net_device *dev,
 		return;
 	}
 
+	if (adj->master)
+		sysfs_remove_link(&(dev->dev.kobj), "master");
+
 	list_del_rcu(&adj->list);
 	pr_debug("dev_put for %s, because link removed from %s to %s\n",
 		 adj_dev->name, dev->name, adj_dev->name);
-- 
cgit 


From 5831d66e8097aedfa3bc35941cf265ada2352317 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Wed, 25 Sep 2013 09:20:32 +0200
Subject: net: create sysfs symlinks for neighbour devices

Also, remove the same functionality from bonding - it will be already done
for any device that links to its lower/upper neighbour.

The links will be created for dev's kobject, and will look like
lower_eth0 for lower device eth0 and upper_bridge0 for upper device
bridge0.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: "David S. Miller" <davem@davemloft.net>
CC: Eric Dumazet <edumazet@google.com>
CC: Jiri Pirko <jiri@resnulli.us>
CC: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_main.c  | 11 +----------
 drivers/net/bonding/bond_sysfs.c | 21 ---------------------
 drivers/net/bonding/bonding.h    |  2 --
 net/core/dev.c                   | 35 ++++++++++++++++++++++++++++++++++-
 4 files changed, 35 insertions(+), 34 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index d49404509814..d5c3153226b7 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1612,15 +1612,11 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 
 	read_unlock(&bond->lock);
 
-	res = bond_create_slave_symlinks(bond_dev, slave_dev);
-	if (res)
-		goto err_detach;
-
 	res = netdev_rx_handler_register(slave_dev, bond_handle_frame,
 					 new_slave);
 	if (res) {
 		pr_debug("Error %d calling netdev_rx_handler_register\n", res);
-		goto err_dest_symlinks;
+		goto err_detach;
 	}
 
 	res = bond_master_upper_dev_link(bond_dev, slave_dev, new_slave);
@@ -1642,9 +1638,6 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 err_unregister:
 	netdev_rx_handler_unregister(slave_dev);
 
-err_dest_symlinks:
-	bond_destroy_slave_symlinks(bond_dev, slave_dev);
-
 err_detach:
 	if (!USES_PRIMARY(bond->params.mode))
 		bond_hw_addr_flush(bond_dev, slave_dev);
@@ -1842,8 +1835,6 @@ static int __bond_release_one(struct net_device *bond_dev,
 			bond_dev->name, slave_dev->name, bond_dev->name);
 
 	/* must do this from outside any spinlocks */
-	bond_destroy_slave_symlinks(bond_dev, slave_dev);
-
 	vlan_vids_del_by_dev(slave_dev, bond_dev);
 
 	/* If the mode USES_PRIMARY, then this cases was handled above by
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 1c5724672204..e06c644470b1 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -168,27 +168,6 @@ static const struct class_attribute class_attr_bonding_masters = {
 	.namespace = bonding_namespace,
 };
 
-int bond_create_slave_symlinks(struct net_device *master,
-			       struct net_device *slave)
-{
-	char linkname[IFNAMSIZ+7];
-
-	/* create a link from the master to the slave */
-	sprintf(linkname, "slave_%s", slave->name);
-	return sysfs_create_link(&(master->dev.kobj), &(slave->dev.kobj),
-				 linkname);
-}
-
-void bond_destroy_slave_symlinks(struct net_device *master,
-				 struct net_device *slave)
-{
-	char linkname[IFNAMSIZ+7];
-
-	sprintf(linkname, "slave_%s", slave->name);
-	sysfs_remove_link(&(master->dev.kobj), linkname);
-}
-
-
 /*
  * Show the slaves in the current bond.
  */
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index e5c32a61dacc..5b71601666cd 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -436,8 +436,6 @@ int bond_create(struct net *net, const char *name);
 int bond_create_sysfs(struct bond_net *net);
 void bond_destroy_sysfs(struct bond_net *net);
 void bond_prepare_sysfs_group(struct bonding *bond);
-int bond_create_slave_symlinks(struct net_device *master, struct net_device *slave);
-void bond_destroy_slave_symlinks(struct net_device *master, struct net_device *slave);
 int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev);
 int bond_release(struct net_device *bond_dev, struct net_device *slave_dev);
 void bond_mii_monitor(struct work_struct *);
diff --git a/net/core/dev.c b/net/core/dev.c
index de443ee1b046..25ab6fe80da2 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4584,6 +4584,7 @@ static int __netdev_adjacent_dev_insert(struct net_device *dev,
 					void *private, bool master)
 {
 	struct netdev_adjacent *adj;
+	char linkname[IFNAMSIZ+7];
 	int ret;
 
 	adj = __netdev_find_adj(dev, adj_dev, dev_list);
@@ -4606,12 +4607,26 @@ static int __netdev_adjacent_dev_insert(struct net_device *dev,
 	pr_debug("dev_hold for %s, because of link added from %s to %s\n",
 		 adj_dev->name, dev->name, adj_dev->name);
 
+	if (dev_list == &dev->adj_list.lower) {
+		sprintf(linkname, "lower_%s", adj_dev->name);
+		ret = sysfs_create_link(&(dev->dev.kobj),
+					&(adj_dev->dev.kobj), linkname);
+		if (ret)
+			goto free_adj;
+	} else if (dev_list == &dev->adj_list.upper) {
+		sprintf(linkname, "upper_%s", adj_dev->name);
+		ret = sysfs_create_link(&(dev->dev.kobj),
+					&(adj_dev->dev.kobj), linkname);
+		if (ret)
+			goto free_adj;
+	}
+
 	/* Ensure that master link is always the first item in list. */
 	if (master) {
 		ret = sysfs_create_link(&(dev->dev.kobj),
 					&(adj_dev->dev.kobj), "master");
 		if (ret)
-			goto free_adj;
+			goto remove_symlinks;
 
 		list_add_rcu(&adj->list, dev_list);
 	} else {
@@ -4620,6 +4635,15 @@ static int __netdev_adjacent_dev_insert(struct net_device *dev,
 
 	return 0;
 
+remove_symlinks:
+	if (dev_list == &dev->adj_list.lower) {
+		sprintf(linkname, "lower_%s", adj_dev->name);
+		sysfs_remove_link(&(dev->dev.kobj), linkname);
+	} else if (dev_list == &dev->adj_list.upper) {
+		sprintf(linkname, "upper_%s", adj_dev->name);
+		sysfs_remove_link(&(dev->dev.kobj), linkname);
+	}
+
 free_adj:
 	kfree(adj);
 
@@ -4631,6 +4655,7 @@ void __netdev_adjacent_dev_remove(struct net_device *dev,
 				  struct list_head *dev_list)
 {
 	struct netdev_adjacent *adj;
+	char linkname[IFNAMSIZ+7];
 
 	adj = __netdev_find_adj(dev, adj_dev, dev_list);
 
@@ -4650,6 +4675,14 @@ void __netdev_adjacent_dev_remove(struct net_device *dev,
 	if (adj->master)
 		sysfs_remove_link(&(dev->dev.kobj), "master");
 
+	if (dev_list == &dev->adj_list.lower) {
+		sprintf(linkname, "lower_%s", adj_dev->name);
+		sysfs_remove_link(&(dev->dev.kobj), linkname);
+	} else if (dev_list == &dev->adj_list.upper) {
+		sprintf(linkname, "upper_%s", adj_dev->name);
+		sysfs_remove_link(&(dev->dev.kobj), linkname);
+	}
+
 	list_del_rcu(&adj->list);
 	pr_debug("dev_put for %s, because link removed from %s to %s\n",
 		 adj_dev->name, dev->name, adj_dev->name);
-- 
cgit 


From 9fd379e929a2808208b1d2d4cd9697067e83a242 Mon Sep 17 00:00:00 2001
From: Oliver Schinagl <oliver@schinagl.nl>
Date: Tue, 3 Sep 2013 12:33:27 +0200
Subject: ARM: sunxi: Initial support for Allwinner's Security ID fuses

Allwinner has electric fuses (efuse) on their line of chips. This driver
reads those fuses, seeds the kernel entropy and exports them as a sysfs
node.

These fuses are most likely to be programmed at the factory, encoding
things like Chip ID, some sort of serial number, etc. and appear to be
reasonably unique.
While in theory, these should be writeable by the user, it will probably
be inconvenient to do so. Allwinner recommends that a certain input pin,
labeled 'efuse_vddq', be connected to GND. To write these fuses however,
a 2.5 V programming voltage needs to be applied to this pin.

Even so, they can still be used to generate a board-unique mac from,
board unique RSA key and seed the kernel RNG.

On sun7i additional storage is available, this is initially used for an
UEFI BOOT key, Secure JTAG key, HDMI-HDCP key and vendor specific keys.

Currently supported are the following known chips:
Allwinner sun4i (A10)
Allwinner sun5i (A10s, A13)
Allwinner sun7i (A20)

Signed-off-by: Oliver Schinagl <oliver@schinagl.nl>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/ABI/testing/sysfs-driver-sunxi-sid   |  22 +++
 .../bindings/misc/allwinner,sunxi-sid.txt          |  17 +++
 drivers/misc/eeprom/Kconfig                        |  13 ++
 drivers/misc/eeprom/Makefile                       |   1 +
 drivers/misc/eeprom/sunxi_sid.c                    | 158 +++++++++++++++++++++
 5 files changed, 211 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-driver-sunxi-sid
 create mode 100644 Documentation/devicetree/bindings/misc/allwinner,sunxi-sid.txt
 create mode 100644 drivers/misc/eeprom/sunxi_sid.c

diff --git a/Documentation/ABI/testing/sysfs-driver-sunxi-sid b/Documentation/ABI/testing/sysfs-driver-sunxi-sid
new file mode 100644
index 000000000000..ffb9536f6ecc
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-sunxi-sid
@@ -0,0 +1,22 @@
+What:		/sys/devices/*/<our-device>/eeprom
+Date:		August 2013
+Contact:	Oliver Schinagl <oliver@schinagl.nl>
+Description:	read-only access to the SID (Security-ID) on current
+		A-series SoC's from Allwinner. Currently supports A10, A10s, A13
+		and A20 CPU's. The earlier A1x series of SoCs exports 16 bytes,
+		whereas the newer A20 SoC exposes 512 bytes split into sections.
+		Besides the 16 bytes of SID, there's also an SJTAG area,
+		HDMI-HDCP key and some custom keys. Below a quick overview, for
+		details see the user manual:
+		0x000  128 bit root-key (sun[457]i)
+		0x010  128 bit boot-key (sun7i)
+		0x020   64 bit security-jtag-key (sun7i)
+		0x028   16 bit key configuration (sun7i)
+		0x02b   16 bit custom-vendor-key (sun7i)
+		0x02c  320 bit low general key (sun7i)
+		0x040   32 bit read-control access (sun7i)
+		0x064  224 bit low general key (sun7i)
+		0x080 2304 bit HDCP-key (sun7i)
+		0x1a0  768 bit high general key (sun7i)
+Users:		any user space application which wants to read the SID on
+		Allwinner's A-series of CPU's.
diff --git a/Documentation/devicetree/bindings/misc/allwinner,sunxi-sid.txt b/Documentation/devicetree/bindings/misc/allwinner,sunxi-sid.txt
new file mode 100644
index 000000000000..68ba37295565
--- /dev/null
+++ b/Documentation/devicetree/bindings/misc/allwinner,sunxi-sid.txt
@@ -0,0 +1,17 @@
+Allwinner sunxi-sid
+
+Required properties:
+- compatible: "allwinner,sun4i-sid" or "allwinner,sun7i-a20-sid".
+- reg: Should contain registers location and length
+
+Example for sun4i:
+	sid@01c23800 {
+		compatible = "allwinner,sun4i-sid";
+		reg = <0x01c23800 0x10>
+	};
+
+Example for sun7i:
+	sid@01c23800 {
+		compatible = "allwinner,sun7i-a20-sid";
+		reg = <0x01c23800 0x200>
+	};
diff --git a/drivers/misc/eeprom/Kconfig b/drivers/misc/eeprom/Kconfig
index 04f2e1fa9dd1..9536852fd4c6 100644
--- a/drivers/misc/eeprom/Kconfig
+++ b/drivers/misc/eeprom/Kconfig
@@ -96,4 +96,17 @@ config EEPROM_DIGSY_MTC_CFG
 
 	  If unsure, say N.
 
+config EEPROM_SUNXI_SID
+	tristate "Allwinner sunxi security ID support"
+	depends on ARCH_SUNXI && SYSFS
+	help
+	  This is a driver for the 'security ID' available on various Allwinner
+	  devices.
+
+	  Due to the potential risks involved with changing e-fuses,
+	  this driver is read-only.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called sunxi_sid.
+
 endmenu
diff --git a/drivers/misc/eeprom/Makefile b/drivers/misc/eeprom/Makefile
index fc1e81d29267..9507aec95e94 100644
--- a/drivers/misc/eeprom/Makefile
+++ b/drivers/misc/eeprom/Makefile
@@ -4,4 +4,5 @@ obj-$(CONFIG_EEPROM_LEGACY)	+= eeprom.o
 obj-$(CONFIG_EEPROM_MAX6875)	+= max6875.o
 obj-$(CONFIG_EEPROM_93CX6)	+= eeprom_93cx6.o
 obj-$(CONFIG_EEPROM_93XX46)	+= eeprom_93xx46.o
+obj-$(CONFIG_EEPROM_SUNXI_SID)	+= sunxi_sid.o
 obj-$(CONFIG_EEPROM_DIGSY_MTC_CFG) += digsy_mtc_eeprom.o
diff --git a/drivers/misc/eeprom/sunxi_sid.c b/drivers/misc/eeprom/sunxi_sid.c
new file mode 100644
index 000000000000..9c34e5704304
--- /dev/null
+++ b/drivers/misc/eeprom/sunxi_sid.c
@@ -0,0 +1,158 @@
+/*
+ * Copyright (c) 2013 Oliver Schinagl <oliver@schinagl.nl>
+ * http://www.linux-sunxi.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * This driver exposes the Allwinner security ID, efuses exported in byte-
+ * sized chunks.
+ */
+
+#include <linux/compiler.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/export.h>
+#include <linux/fs.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/kobject.h>
+#include <linux/module.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/random.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+#include <linux/sysfs.h>
+#include <linux/types.h>
+
+#define DRV_NAME "sunxi-sid"
+
+struct sunxi_sid_data {
+	void __iomem *reg_base;
+	unsigned int keysize;
+};
+
+/* We read the entire key, due to a 32 bit read alignment requirement. Since we
+ * want to return the requested byte, this results in somewhat slower code and
+ * uses 4 times more reads as needed but keeps code simpler. Since the SID is
+ * only very rarely probed, this is not really an issue.
+ */
+static u8 sunxi_sid_read_byte(const struct sunxi_sid_data *sid_data,
+			      const unsigned int offset)
+{
+	u32 sid_key;
+
+	if (offset >= sid_data->keysize)
+		return 0;
+
+	sid_key = ioread32be(sid_data->reg_base + round_down(offset, 4));
+	sid_key >>= (offset % 4) * 8;
+
+	return sid_key; /* Only return the last byte */
+}
+
+static ssize_t sid_read(struct file *fd, struct kobject *kobj,
+			struct bin_attribute *attr, char *buf,
+			loff_t pos, size_t size)
+{
+	struct platform_device *pdev;
+	struct sunxi_sid_data *sid_data;
+	int i;
+
+	pdev = to_platform_device(kobj_to_dev(kobj));
+	sid_data = platform_get_drvdata(pdev);
+
+	if (pos < 0 || pos >= sid_data->keysize)
+		return 0;
+	if (size > sid_data->keysize - pos)
+		size = sid_data->keysize - pos;
+
+	for (i = 0; i < size; i++)
+		buf[i] = sunxi_sid_read_byte(sid_data, pos + i);
+
+	return i;
+}
+
+static struct bin_attribute sid_bin_attr = {
+	.attr = { .name = "eeprom", .mode = S_IRUGO, },
+	.read = sid_read,
+};
+
+static int sunxi_sid_remove(struct platform_device *pdev)
+{
+	device_remove_bin_file(&pdev->dev, &sid_bin_attr);
+	dev_dbg(&pdev->dev, "driver unloaded\n");
+
+	return 0;
+}
+
+static const struct of_device_id sunxi_sid_of_match[] = {
+	{ .compatible = "allwinner,sun4i-sid", .data = (void *)16},
+	{ .compatible = "allwinner,sun7i-a20-sid", .data = (void *)512},
+	{/* sentinel */},
+};
+MODULE_DEVICE_TABLE(of, sunxi_sid_of_match);
+
+static int sunxi_sid_probe(struct platform_device *pdev)
+{
+	struct sunxi_sid_data *sid_data;
+	struct resource *res;
+	const struct of_device_id *of_dev_id;
+	u8 *entropy;
+	unsigned int i;
+
+	sid_data = devm_kzalloc(&pdev->dev, sizeof(struct sunxi_sid_data),
+				GFP_KERNEL);
+	if (!sid_data)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	sid_data->reg_base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(sid_data->reg_base))
+		return PTR_ERR(sid_data->reg_base);
+
+	of_dev_id = of_match_device(sunxi_sid_of_match, &pdev->dev);
+	if (!of_dev_id)
+		return -ENODEV;
+	sid_data->keysize = (int)of_dev_id->data;
+
+	platform_set_drvdata(pdev, sid_data);
+
+	sid_bin_attr.size = sid_data->keysize;
+	if (device_create_bin_file(&pdev->dev, &sid_bin_attr))
+		return -ENODEV;
+
+	entropy = kzalloc(sizeof(u8) * sid_data->keysize, GFP_KERNEL);
+	for (i = 0; i < sid_data->keysize; i++)
+		entropy[i] = sunxi_sid_read_byte(sid_data, i);
+	add_device_randomness(entropy, sid_data->keysize);
+	kfree(entropy);
+
+	dev_dbg(&pdev->dev, "loaded\n");
+
+	return 0;
+}
+
+static struct platform_driver sunxi_sid_driver = {
+	.probe = sunxi_sid_probe,
+	.remove = sunxi_sid_remove,
+	.driver = {
+		.name = DRV_NAME,
+		.owner = THIS_MODULE,
+		.of_match_table = sunxi_sid_of_match,
+	},
+};
+module_platform_driver(sunxi_sid_driver);
+
+MODULE_AUTHOR("Oliver Schinagl <oliver@schinagl.nl>");
+MODULE_DESCRIPTION("Allwinner sunxi security id driver");
+MODULE_LICENSE("GPL");
-- 
cgit 


From 9089e3be60b13a1114e8afdc37c605e75cfc4a26 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 6 Sep 2013 14:39:28 +0800
Subject: VMCI: fix to pass correct device identity to free_irq()

free_irq() expects the same device identity that was passed to
corresponding request_irq(), otherwise the IRQ is not freed.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Dmitry Torokhov <dtor@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/vmw_vmci/vmci_guest.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/vmw_vmci/vmci_guest.c b/drivers/misc/vmw_vmci/vmci_guest.c
index b3a2b763ecf2..c98b03b99353 100644
--- a/drivers/misc/vmw_vmci/vmci_guest.c
+++ b/drivers/misc/vmw_vmci/vmci_guest.c
@@ -649,7 +649,7 @@ static int vmci_guest_probe_device(struct pci_dev *pdev,
 	return 0;
 
 err_free_irq:
-	free_irq(vmci_dev->irq, &vmci_dev);
+	free_irq(vmci_dev->irq, vmci_dev);
 	tasklet_kill(&vmci_dev->datagram_tasklet);
 	tasklet_kill(&vmci_dev->bm_tasklet);
 
-- 
cgit 


From b170d8ce3f81bd97e85756e9184779a56a5f55a7 Mon Sep 17 00:00:00 2001
From: Sudeep Dutt <sudeep.dutt@intel.com>
Date: Thu, 5 Sep 2013 16:41:31 -0700
Subject: Intel MIC Host Driver for X100 family.

This patch enables the following:
a) Initializes the Intel MIC X100 PCIe devices.
b) Provides sysfs entries for family and stepping information.

Co-author: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Caz Yokoyama <Caz.Yokoyama@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Harshavardhan R Kharche <harshavardhan.r.kharche@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Acked-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/ABI/testing/sysfs-class-mic.txt |  34 +++
 drivers/misc/Kconfig                          |   1 +
 drivers/misc/Makefile                         |   1 +
 drivers/misc/mic/Kconfig                      |  19 ++
 drivers/misc/mic/Makefile                     |   5 +
 drivers/misc/mic/common/mic_device.h          |  37 +++
 drivers/misc/mic/host/Makefile                |   8 +
 drivers/misc/mic/host/mic_device.h            | 109 +++++++++
 drivers/misc/mic/host/mic_main.c              | 309 ++++++++++++++++++++++++++
 drivers/misc/mic/host/mic_sysfs.c             |  97 ++++++++
 drivers/misc/mic/host/mic_x100.c              |  75 +++++++
 drivers/misc/mic/host/mic_x100.h              |  47 ++++
 12 files changed, 742 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-class-mic.txt
 create mode 100644 drivers/misc/mic/Kconfig
 create mode 100644 drivers/misc/mic/Makefile
 create mode 100644 drivers/misc/mic/common/mic_device.h
 create mode 100644 drivers/misc/mic/host/Makefile
 create mode 100644 drivers/misc/mic/host/mic_device.h
 create mode 100644 drivers/misc/mic/host/mic_main.c
 create mode 100644 drivers/misc/mic/host/mic_sysfs.c
 create mode 100644 drivers/misc/mic/host/mic_x100.c
 create mode 100644 drivers/misc/mic/host/mic_x100.h

diff --git a/Documentation/ABI/testing/sysfs-class-mic.txt b/Documentation/ABI/testing/sysfs-class-mic.txt
new file mode 100644
index 000000000000..09eb3c6d0237
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-mic.txt
@@ -0,0 +1,34 @@
+What:		/sys/class/mic/
+Date:		August 2013
+KernelVersion:	3.11
+Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
+Description:
+		The mic class directory belongs to Intel MIC devices and
+		provides information per MIC device. An Intel MIC device is a
+		PCIe form factor add-in Coprocessor card based on the Intel Many
+		Integrated Core (MIC) architecture that runs a Linux OS.
+
+What:		/sys/class/mic/mic(x)
+Date:		August 2013
+KernelVersion:	3.11
+Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
+Description:
+		The directories /sys/class/mic/mic0, /sys/class/mic/mic1 etc.,
+		represent MIC devices (0,1,..etc). Each directory has
+		information specific to that MIC device.
+
+What:		/sys/class/mic/mic(x)/family
+Date:		August 2013
+KernelVersion:	3.11
+Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
+Description:
+		Provides information about the Coprocessor family for an Intel
+		MIC device. For example - "x100"
+
+What:		/sys/class/mic/mic(x)/stepping
+Date:		August 2013
+KernelVersion:	3.11
+Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
+Description:
+		Provides information about the silicon stepping for an Intel
+		MIC device. For example - "A0" or "B0"
diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 8dacd4c9ee87..e760715bd9cb 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -537,4 +537,5 @@ source "drivers/misc/carma/Kconfig"
 source "drivers/misc/altera-stapl/Kconfig"
 source "drivers/misc/mei/Kconfig"
 source "drivers/misc/vmw_vmci/Kconfig"
+source "drivers/misc/mic/Kconfig"
 endmenu
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index c235d5b68311..0b7ea3ea8bb8 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -53,3 +53,4 @@ obj-$(CONFIG_INTEL_MEI)		+= mei/
 obj-$(CONFIG_VMWARE_VMCI)	+= vmw_vmci/
 obj-$(CONFIG_LATTICE_ECP3_CONFIG)	+= lattice-ecp3-config.o
 obj-$(CONFIG_SRAM)		+= sram.o
+obj-y				+= mic/
diff --git a/drivers/misc/mic/Kconfig b/drivers/misc/mic/Kconfig
new file mode 100644
index 000000000000..aaefd0cf82a7
--- /dev/null
+++ b/drivers/misc/mic/Kconfig
@@ -0,0 +1,19 @@
+comment "Intel MIC Host Driver"
+
+config INTEL_MIC_HOST
+	tristate "Intel MIC Host Driver"
+	depends on 64BIT && PCI
+	default N
+	help
+	  This enables Host Driver support for the Intel Many Integrated
+	  Core (MIC) family of PCIe form factor coprocessor devices that
+	  run a 64 bit Linux OS. The driver manages card OS state and
+	  enables communication between host and card. Intel MIC X100
+	  devices are currently supported.
+
+	  If you are building a host kernel with an Intel MIC device then
+	  say M (recommended) or Y, else say N. If unsure say N.
+
+	  More information about the Intel MIC family as well as the Linux
+	  OS and tools for MIC to use with this driver are available from
+	  <http://software.intel.com/en-us/mic-developer>.
diff --git a/drivers/misc/mic/Makefile b/drivers/misc/mic/Makefile
new file mode 100644
index 000000000000..8e724212d94c
--- /dev/null
+++ b/drivers/misc/mic/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile - Intel MIC Linux driver.
+# Copyright(c) 2013, Intel Corporation.
+#
+obj-$(CONFIG_INTEL_MIC_HOST) += host/
diff --git a/drivers/misc/mic/common/mic_device.h b/drivers/misc/mic/common/mic_device.h
new file mode 100644
index 000000000000..f02262e1c9d3
--- /dev/null
+++ b/drivers/misc/mic/common/mic_device.h
@@ -0,0 +1,37 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC driver.
+ *
+ */
+#ifndef __MIC_COMMON_DEVICE_H_
+#define __MIC_COMMON_DEVICE_H_
+
+/**
+ * struct mic_mw - MIC memory window
+ *
+ * @pa: Base physical address.
+ * @va: Base ioremap'd virtual address.
+ * @len: Size of the memory window.
+ */
+struct mic_mw {
+	phys_addr_t pa;
+	void __iomem *va;
+	resource_size_t len;
+};
+
+#endif
diff --git a/drivers/misc/mic/host/Makefile b/drivers/misc/mic/host/Makefile
new file mode 100644
index 000000000000..93b9d25d2c88
--- /dev/null
+++ b/drivers/misc/mic/host/Makefile
@@ -0,0 +1,8 @@
+#
+# Makefile - Intel MIC Linux driver.
+# Copyright(c) 2013, Intel Corporation.
+#
+obj-$(CONFIG_INTEL_MIC_HOST) += mic_host.o
+mic_host-objs := mic_main.o
+mic_host-objs += mic_x100.o
+mic_host-objs += mic_sysfs.o
diff --git a/drivers/misc/mic/host/mic_device.h b/drivers/misc/mic/host/mic_device.h
new file mode 100644
index 000000000000..6cd904cdfdf9
--- /dev/null
+++ b/drivers/misc/mic/host/mic_device.h
@@ -0,0 +1,109 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC Host driver.
+ *
+ */
+#ifndef _MIC_DEVICE_H_
+#define _MIC_DEVICE_H_
+
+/* The maximum number of MIC devices supported in a single host system. */
+#define MIC_MAX_NUM_DEVS 256
+
+/**
+ * enum mic_hw_family - The hardware family to which a device belongs.
+ */
+enum mic_hw_family {
+	MIC_FAMILY_X100 = 0,
+	MIC_FAMILY_UNKNOWN
+};
+
+/**
+ * enum mic_stepping - MIC stepping ids.
+ */
+enum mic_stepping {
+	MIC_A0_STEP = 0x0,
+	MIC_B0_STEP = 0x10,
+	MIC_B1_STEP = 0x11,
+	MIC_C0_STEP = 0x20,
+};
+
+/**
+ * struct mic_device -  MIC device information for each card.
+ *
+ * @mmio: MMIO bar information.
+ * @aper: Aperture bar information.
+ * @family: The MIC family to which this device belongs.
+ * @ops: MIC HW specific operations.
+ * @id: The unique device id for this MIC device.
+ * @stepping: Stepping ID.
+ * @attr_group: Pointer to list of sysfs attribute groups.
+ * @sdev: Device for sysfs entries.
+ */
+struct mic_device {
+	struct mic_mw mmio;
+	struct mic_mw aper;
+	enum mic_hw_family family;
+	struct mic_hw_ops *ops;
+	int id;
+	enum mic_stepping stepping;
+	const struct attribute_group **attr_group;
+	struct device *sdev;
+};
+
+/**
+ * struct mic_hw_ops - MIC HW specific operations.
+ * @aper_bar: Aperture bar resource number.
+ * @mmio_bar: MMIO bar resource number.
+ * @read_spad: Read from scratch pad register.
+ * @write_spad: Write to scratch pad register.
+ */
+struct mic_hw_ops {
+	u8 aper_bar;
+	u8 mmio_bar;
+	u32 (*read_spad)(struct mic_device *mdev, unsigned int idx);
+	void (*write_spad)(struct mic_device *mdev, unsigned int idx, u32 val);
+};
+
+/**
+ * mic_mmio_read - read from an MMIO register.
+ * @mw: MMIO register base virtual address.
+ * @offset: register offset.
+ *
+ * RETURNS: register value.
+ */
+static inline u32 mic_mmio_read(struct mic_mw *mw, u32 offset)
+{
+	return ioread32(mw->va + offset);
+}
+
+/**
+ * mic_mmio_write - write to an MMIO register.
+ * @mw: MMIO register base virtual address.
+ * @val: the data value to put into the register
+ * @offset: register offset.
+ *
+ * RETURNS: none.
+ */
+static inline void
+mic_mmio_write(struct mic_mw *mw, u32 val, u32 offset)
+{
+	iowrite32(val, mw->va + offset);
+}
+
+void mic_sysfs_init(struct mic_device *mdev);
+#endif
diff --git a/drivers/misc/mic/host/mic_main.c b/drivers/misc/mic/host/mic_main.c
new file mode 100644
index 000000000000..228c96c04a03
--- /dev/null
+++ b/drivers/misc/mic/host/mic_main.c
@@ -0,0 +1,309 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC Host driver.
+ *
+ * Global TODO's across the driver to be added after initial base
+ * patches are accepted upstream:
+ * 1) Enable DMA support.
+ * 2) Enable per vring interrupt support.
+ */
+#include <linux/fs.h>
+#include <linux/idr.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+
+#include "../common/mic_device.h"
+#include "mic_device.h"
+#include "mic_x100.h"
+
+static const char mic_driver_name[] = "mic";
+
+static DEFINE_PCI_DEVICE_TABLE(mic_pci_tbl) = {
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2250)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2251)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2252)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2253)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2254)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2255)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2256)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2257)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2258)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_2259)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_225a)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_225b)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_225c)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_225d)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MIC_X100_PCI_DEVICE_225e)},
+
+	/* required last entry */
+	{ 0, }
+};
+
+MODULE_DEVICE_TABLE(pci, mic_pci_tbl);
+
+/* ID allocator for MIC devices */
+static struct ida g_mic_ida;
+/* Class of MIC devices for sysfs accessibility. */
+static struct class *g_mic_class;
+/* Base device node number for MIC devices */
+static dev_t g_mic_devno;
+
+/**
+ * mic_ops_init: Initialize HW specific operation tables.
+ *
+ * @mdev: pointer to mic_device instance
+ *
+ * returns none.
+ */
+static void mic_ops_init(struct mic_device *mdev)
+{
+	switch (mdev->family) {
+	case MIC_FAMILY_X100:
+		mdev->ops = &mic_x100_ops;
+		break;
+	default:
+		break;
+	}
+}
+
+/**
+ * mic_get_family - Determine hardware family to which this MIC belongs.
+ *
+ * @pdev: The pci device structure
+ *
+ * returns family.
+ */
+static enum mic_hw_family mic_get_family(struct pci_dev *pdev)
+{
+	enum mic_hw_family family;
+
+	switch (pdev->device) {
+	case MIC_X100_PCI_DEVICE_2250:
+	case MIC_X100_PCI_DEVICE_2251:
+	case MIC_X100_PCI_DEVICE_2252:
+	case MIC_X100_PCI_DEVICE_2253:
+	case MIC_X100_PCI_DEVICE_2254:
+	case MIC_X100_PCI_DEVICE_2255:
+	case MIC_X100_PCI_DEVICE_2256:
+	case MIC_X100_PCI_DEVICE_2257:
+	case MIC_X100_PCI_DEVICE_2258:
+	case MIC_X100_PCI_DEVICE_2259:
+	case MIC_X100_PCI_DEVICE_225a:
+	case MIC_X100_PCI_DEVICE_225b:
+	case MIC_X100_PCI_DEVICE_225c:
+	case MIC_X100_PCI_DEVICE_225d:
+	case MIC_X100_PCI_DEVICE_225e:
+		family = MIC_FAMILY_X100;
+		break;
+	default:
+		family = MIC_FAMILY_UNKNOWN;
+		break;
+	}
+	return family;
+}
+
+/**
+ * mic_device_init - Allocates and initializes the MIC device structure
+ *
+ * @mdev: pointer to mic_device instance
+ * @pdev: The pci device structure
+ *
+ * returns none.
+ */
+static void
+mic_device_init(struct mic_device *mdev, struct pci_dev *pdev)
+{
+	mdev->family = mic_get_family(pdev);
+	mdev->stepping = pdev->revision;
+	mic_ops_init(mdev);
+	mic_sysfs_init(mdev);
+}
+
+/**
+ * mic_probe - Device Initialization Routine
+ *
+ * @pdev: PCI device structure
+ * @ent: entry in mic_pci_tbl
+ *
+ * returns 0 on success, < 0 on failure.
+ */
+static int mic_probe(struct pci_dev *pdev,
+		const struct pci_device_id *ent)
+{
+	int rc;
+	struct mic_device *mdev;
+
+	mdev = kzalloc(sizeof(*mdev), GFP_KERNEL);
+	if (!mdev) {
+		rc = -ENOMEM;
+		dev_err(&pdev->dev, "mdev kmalloc failed rc %d\n", rc);
+		goto mdev_alloc_fail;
+	}
+	mdev->id = ida_simple_get(&g_mic_ida, 0, MIC_MAX_NUM_DEVS, GFP_KERNEL);
+	if (mdev->id < 0) {
+		rc = mdev->id;
+		dev_err(&pdev->dev, "ida_simple_get failed rc %d\n", rc);
+		goto ida_fail;
+	}
+
+	mic_device_init(mdev, pdev);
+
+	rc = pci_enable_device(pdev);
+	if (rc) {
+		dev_err(&pdev->dev, "failed to enable pci device.\n");
+		goto ida_remove;
+	}
+
+	pci_set_master(pdev);
+
+	rc = pci_request_regions(pdev, mic_driver_name);
+	if (rc) {
+		dev_err(&pdev->dev, "failed to get pci regions.\n");
+		goto disable_device;
+	}
+
+	rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
+	if (rc) {
+		dev_err(&pdev->dev, "Cannot set DMA mask\n");
+		goto release_regions;
+	}
+
+	mdev->mmio.pa = pci_resource_start(pdev, mdev->ops->mmio_bar);
+	mdev->mmio.len = pci_resource_len(pdev, mdev->ops->mmio_bar);
+	mdev->mmio.va = pci_ioremap_bar(pdev, mdev->ops->mmio_bar);
+	if (!mdev->mmio.va) {
+		dev_err(&pdev->dev, "Cannot remap MMIO BAR\n");
+		rc = -EIO;
+		goto release_regions;
+	}
+
+	mdev->aper.pa = pci_resource_start(pdev, mdev->ops->aper_bar);
+	mdev->aper.len = pci_resource_len(pdev, mdev->ops->aper_bar);
+	mdev->aper.va = ioremap_wc(mdev->aper.pa, mdev->aper.len);
+	if (!mdev->aper.va) {
+		dev_err(&pdev->dev, "Cannot remap Aperture BAR\n");
+		rc = -EIO;
+		goto unmap_mmio;
+	}
+
+	pci_set_drvdata(pdev, mdev);
+
+	mdev->sdev = device_create_with_groups(g_mic_class, &pdev->dev,
+		MKDEV(MAJOR(g_mic_devno), mdev->id), NULL,
+		mdev->attr_group, "mic%d", mdev->id);
+	if (IS_ERR(mdev->sdev)) {
+		rc = PTR_ERR(mdev->sdev);
+		dev_err(&pdev->dev,
+			"device_create_with_groups failed rc %d\n", rc);
+		goto unmap_aper;
+	}
+	return 0;
+unmap_aper:
+	iounmap(mdev->aper.va);
+unmap_mmio:
+	iounmap(mdev->mmio.va);
+release_regions:
+	pci_release_regions(pdev);
+disable_device:
+	pci_disable_device(pdev);
+ida_remove:
+	ida_simple_remove(&g_mic_ida, mdev->id);
+ida_fail:
+	kfree(mdev);
+mdev_alloc_fail:
+	dev_err(&pdev->dev, "Probe failed rc %d\n", rc);
+	return rc;
+}
+
+/**
+ * mic_remove - Device Removal Routine
+ * mic_remove is called by the PCI subsystem to alert the driver
+ * that it should release a PCI device.
+ *
+ * @pdev: PCI device structure
+ */
+static void mic_remove(struct pci_dev *pdev)
+{
+	struct mic_device *mdev;
+
+	mdev = pci_get_drvdata(pdev);
+	if (!mdev)
+		return;
+
+	device_destroy(g_mic_class, MKDEV(MAJOR(g_mic_devno), mdev->id));
+	iounmap(mdev->mmio.va);
+	iounmap(mdev->aper.va);
+	pci_release_regions(pdev);
+	pci_disable_device(pdev);
+	ida_simple_remove(&g_mic_ida, mdev->id);
+	kfree(mdev);
+}
+static struct pci_driver mic_driver = {
+	.name = mic_driver_name,
+	.id_table = mic_pci_tbl,
+	.probe = mic_probe,
+	.remove = mic_remove
+};
+
+static int __init mic_init(void)
+{
+	int ret;
+
+	ret = alloc_chrdev_region(&g_mic_devno, 0,
+		MIC_MAX_NUM_DEVS, mic_driver_name);
+	if (ret) {
+		pr_err("alloc_chrdev_region failed ret %d\n", ret);
+		goto error;
+	}
+
+	g_mic_class = class_create(THIS_MODULE, mic_driver_name);
+	if (IS_ERR(g_mic_class)) {
+		ret = PTR_ERR(g_mic_class);
+		pr_err("class_create failed ret %d\n", ret);
+		goto cleanup_chrdev;
+	}
+
+	ida_init(&g_mic_ida);
+	ret = pci_register_driver(&mic_driver);
+	if (ret) {
+		pr_err("pci_register_driver failed ret %d\n", ret);
+		goto class_destroy;
+	}
+	return ret;
+class_destroy:
+	class_destroy(g_mic_class);
+cleanup_chrdev:
+	unregister_chrdev_region(g_mic_devno, MIC_MAX_NUM_DEVS);
+error:
+	return ret;
+}
+
+static void __exit mic_exit(void)
+{
+	pci_unregister_driver(&mic_driver);
+	ida_destroy(&g_mic_ida);
+	class_destroy(g_mic_class);
+	unregister_chrdev_region(g_mic_devno, MIC_MAX_NUM_DEVS);
+}
+
+module_init(mic_init);
+module_exit(mic_exit);
+
+MODULE_AUTHOR("Intel Corporation");
+MODULE_DESCRIPTION("Intel(R) MIC X100 Host driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/misc/mic/host/mic_sysfs.c b/drivers/misc/mic/host/mic_sysfs.c
new file mode 100644
index 000000000000..972c18255263
--- /dev/null
+++ b/drivers/misc/mic/host/mic_sysfs.c
@@ -0,0 +1,97 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC Host driver.
+ *
+ */
+#include <linux/pci.h>
+
+#include "../common/mic_device.h"
+#include "mic_device.h"
+
+static ssize_t
+mic_show_family(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	static const char x100[] = "x100";
+	static const char unknown[] = "Unknown";
+	const char *card = NULL;
+	struct mic_device *mdev = dev_get_drvdata(dev->parent);
+
+	if (!mdev)
+		return -EINVAL;
+
+	switch (mdev->family) {
+	case MIC_FAMILY_X100:
+		card = x100;
+		break;
+	default:
+		card = unknown;
+		break;
+	}
+	return scnprintf(buf, PAGE_SIZE, "%s\n", card);
+}
+static DEVICE_ATTR(family, S_IRUGO, mic_show_family, NULL);
+
+static ssize_t
+mic_show_stepping(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct mic_device *mdev = dev_get_drvdata(dev->parent);
+	char *string = "??";
+
+	if (!mdev)
+		return -EINVAL;
+
+	switch (mdev->stepping) {
+	case MIC_A0_STEP:
+		string = "A0";
+		break;
+	case MIC_B0_STEP:
+		string = "B0";
+		break;
+	case MIC_B1_STEP:
+		string = "B1";
+		break;
+	case MIC_C0_STEP:
+		string = "C0";
+		break;
+	default:
+		break;
+	}
+	return scnprintf(buf, PAGE_SIZE, "%s\n", string);
+}
+static DEVICE_ATTR(stepping, S_IRUGO, mic_show_stepping, NULL);
+
+static struct attribute *mic_default_attrs[] = {
+	&dev_attr_family.attr,
+	&dev_attr_stepping.attr,
+
+	NULL
+};
+
+static struct attribute_group mic_attr_group = {
+	.attrs = mic_default_attrs,
+};
+
+static const struct attribute_group *__mic_attr_group[] = {
+	&mic_attr_group,
+	NULL
+};
+
+void mic_sysfs_init(struct mic_device *mdev)
+{
+	mdev->attr_group = __mic_attr_group;
+}
diff --git a/drivers/misc/mic/host/mic_x100.c b/drivers/misc/mic/host/mic_x100.c
new file mode 100644
index 000000000000..da481b173af9
--- /dev/null
+++ b/drivers/misc/mic/host/mic_x100.c
@@ -0,0 +1,75 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC Host driver.
+ *
+ */
+#include <linux/fs.h>
+#include <linux/pci.h>
+
+#include "../common/mic_device.h"
+#include "mic_device.h"
+#include "mic_x100.h"
+
+/**
+ * mic_x100_write_spad - write to the scratchpad register
+ * @mdev: pointer to mic_device instance
+ * @idx: index to the scratchpad register, 0 based
+ * @val: the data value to put into the register
+ *
+ * This function allows writing of a 32bit value to the indexed scratchpad
+ * register.
+ *
+ * RETURNS: none.
+ */
+static void
+mic_x100_write_spad(struct mic_device *mdev, unsigned int idx, u32 val)
+{
+	dev_dbg(mdev->sdev->parent, "Writing 0x%x to scratch pad index %d\n",
+		val, idx);
+	mic_mmio_write(&mdev->mmio, val,
+		MIC_X100_SBOX_BASE_ADDRESS +
+		MIC_X100_SBOX_SPAD0 + idx * 4);
+}
+
+/**
+ * mic_x100_read_spad - read from the scratchpad register
+ * @mdev: pointer to mic_device instance
+ * @idx: index to scratchpad register, 0 based
+ *
+ * This function allows reading of the 32bit scratchpad register.
+ *
+ * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
+ */
+static u32
+mic_x100_read_spad(struct mic_device *mdev, unsigned int idx)
+{
+	u32 val = mic_mmio_read(&mdev->mmio,
+		MIC_X100_SBOX_BASE_ADDRESS +
+		MIC_X100_SBOX_SPAD0 + idx * 4);
+
+	dev_dbg(mdev->sdev->parent,
+		"Reading 0x%x from scratch pad index %d\n", val, idx);
+	return val;
+}
+
+struct mic_hw_ops mic_x100_ops = {
+	.aper_bar = MIC_X100_APER_BAR,
+	.mmio_bar = MIC_X100_MMIO_BAR,
+	.read_spad = mic_x100_read_spad,
+	.write_spad = mic_x100_write_spad,
+};
diff --git a/drivers/misc/mic/host/mic_x100.h b/drivers/misc/mic/host/mic_x100.h
new file mode 100644
index 000000000000..1f4e6305dcf5
--- /dev/null
+++ b/drivers/misc/mic/host/mic_x100.h
@@ -0,0 +1,47 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC Host driver.
+ *
+ */
+#ifndef _MIC_X100_HW_H_
+#define _MIC_X100_HW_H_
+
+#define MIC_X100_PCI_DEVICE_2250 0x2250
+#define MIC_X100_PCI_DEVICE_2251 0x2251
+#define MIC_X100_PCI_DEVICE_2252 0x2252
+#define MIC_X100_PCI_DEVICE_2253 0x2253
+#define MIC_X100_PCI_DEVICE_2254 0x2254
+#define MIC_X100_PCI_DEVICE_2255 0x2255
+#define MIC_X100_PCI_DEVICE_2256 0x2256
+#define MIC_X100_PCI_DEVICE_2257 0x2257
+#define MIC_X100_PCI_DEVICE_2258 0x2258
+#define MIC_X100_PCI_DEVICE_2259 0x2259
+#define MIC_X100_PCI_DEVICE_225a 0x225a
+#define MIC_X100_PCI_DEVICE_225b 0x225b
+#define MIC_X100_PCI_DEVICE_225c 0x225c
+#define MIC_X100_PCI_DEVICE_225d 0x225d
+#define MIC_X100_PCI_DEVICE_225e 0x225e
+
+#define MIC_X100_APER_BAR 0
+#define MIC_X100_MMIO_BAR 4
+
+#define MIC_X100_SBOX_BASE_ADDRESS 0x00010000
+#define MIC_X100_SBOX_SPAD0 0x0000AB20
+extern struct mic_hw_ops mic_x100_ops;
+
+#endif
-- 
cgit 


From a01e28f692088e9789ebb0c374fdac83de59899b Mon Sep 17 00:00:00 2001
From: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Date: Thu, 5 Sep 2013 16:41:41 -0700
Subject: Intel MIC Host Driver Interrupt/SMPT support.

This patch enables the following features:
a) MSIx, MSI and legacy interrupt support.
b) System Memory Page Table(SMPT) support. SMPT enables system memory
   access from the card. On X100 devices the host can program 32 SMPT
   registers each capable of accessing 16GB of system memory
   address space from X100 devices. The registers can thereby be used
   to access a cumulative 512GB of system memory address space from
   X100 devices at any point in time.

Co-author: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Caz Yokoyama <Caz.Yokoyama@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Harshavardhan R Kharche <harshavardhan.r.kharche@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Acked-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mic/host/Makefile     |   2 +
 drivers/misc/mic/host/mic_device.h |  21 ++
 drivers/misc/mic/host/mic_intr.c   | 628 +++++++++++++++++++++++++++++++++++++
 drivers/misc/mic/host/mic_intr.h   | 137 ++++++++
 drivers/misc/mic/host/mic_main.c   |  26 +-
 drivers/misc/mic/host/mic_smpt.c   | 442 ++++++++++++++++++++++++++
 drivers/misc/mic/host/mic_smpt.h   |  98 ++++++
 drivers/misc/mic/host/mic_x100.c   | 247 +++++++++++++++
 drivers/misc/mic/host/mic_x100.h   |  39 +++
 9 files changed, 1638 insertions(+), 2 deletions(-)
 create mode 100644 drivers/misc/mic/host/mic_intr.c
 create mode 100644 drivers/misc/mic/host/mic_intr.h
 create mode 100644 drivers/misc/mic/host/mic_smpt.c
 create mode 100644 drivers/misc/mic/host/mic_smpt.h

diff --git a/drivers/misc/mic/host/Makefile b/drivers/misc/mic/host/Makefile
index 93b9d25d2c88..6ff5550f10ac 100644
--- a/drivers/misc/mic/host/Makefile
+++ b/drivers/misc/mic/host/Makefile
@@ -6,3 +6,5 @@ obj-$(CONFIG_INTEL_MIC_HOST) += mic_host.o
 mic_host-objs := mic_main.o
 mic_host-objs += mic_x100.o
 mic_host-objs += mic_sysfs.o
+mic_host-objs += mic_smpt.o
+mic_host-objs += mic_intr.o
diff --git a/drivers/misc/mic/host/mic_device.h b/drivers/misc/mic/host/mic_device.h
index 6cd904cdfdf9..dd34b6532a01 100644
--- a/drivers/misc/mic/host/mic_device.h
+++ b/drivers/misc/mic/host/mic_device.h
@@ -21,6 +21,10 @@
 #ifndef _MIC_DEVICE_H_
 #define _MIC_DEVICE_H_
 
+#include <linux/idr.h>
+
+#include "mic_intr.h"
+
 /* The maximum number of MIC devices supported in a single host system. */
 #define MIC_MAX_NUM_DEVS 256
 
@@ -53,6 +57,12 @@ enum mic_stepping {
  * @stepping: Stepping ID.
  * @attr_group: Pointer to list of sysfs attribute groups.
  * @sdev: Device for sysfs entries.
+ * @mic_mutex: Mutex for synchronizing access to mic_device.
+ * @intr_ops: HW specific interrupt operations.
+ * @smpt_ops: Hardware specific SMPT operations.
+ * @smpt: MIC SMPT information.
+ * @intr_info: H/W specific interrupt information.
+ * @irq_info: The OS specific irq information
  */
 struct mic_device {
 	struct mic_mw mmio;
@@ -63,6 +73,12 @@ struct mic_device {
 	enum mic_stepping stepping;
 	const struct attribute_group **attr_group;
 	struct device *sdev;
+	struct mutex mic_mutex;
+	struct mic_hw_intr_ops *intr_ops;
+	struct mic_smpt_ops *smpt_ops;
+	struct mic_smpt_info *smpt;
+	struct mic_intr_info *intr_info;
+	struct mic_irq_info irq_info;
 };
 
 /**
@@ -71,12 +87,17 @@ struct mic_device {
  * @mmio_bar: MMIO bar resource number.
  * @read_spad: Read from scratch pad register.
  * @write_spad: Write to scratch pad register.
+ * @send_intr: Send an interrupt for a particular doorbell on the card.
+ * @ack_interrupt: Hardware specific operations to ack the h/w on
+ * receipt of an interrupt.
  */
 struct mic_hw_ops {
 	u8 aper_bar;
 	u8 mmio_bar;
 	u32 (*read_spad)(struct mic_device *mdev, unsigned int idx);
 	void (*write_spad)(struct mic_device *mdev, unsigned int idx, u32 val);
+	void (*send_intr)(struct mic_device *mdev, int doorbell);
+	u32 (*ack_interrupt)(struct mic_device *mdev);
 };
 
 /**
diff --git a/drivers/misc/mic/host/mic_intr.c b/drivers/misc/mic/host/mic_intr.c
new file mode 100644
index 000000000000..cdae3141dbb9
--- /dev/null
+++ b/drivers/misc/mic/host/mic_intr.c
@@ -0,0 +1,628 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC Host driver.
+ *
+ */
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+
+#include "../common/mic_device.h"
+#include "mic_device.h"
+
+/*
+ * mic_invoke_callback - Invoke callback functions registered for
+ * the corresponding source id.
+ *
+ * @mdev: pointer to the mic_device instance
+ * @idx: The interrupt source id.
+ *
+ * Returns none.
+ */
+static inline void mic_invoke_callback(struct mic_device *mdev, int idx)
+{
+	struct mic_intr_cb *intr_cb;
+	struct pci_dev *pdev = container_of(mdev->sdev->parent,
+		struct pci_dev, dev);
+
+	spin_lock(&mdev->irq_info.mic_intr_lock);
+	list_for_each_entry(intr_cb, &mdev->irq_info.cb_list[idx], list)
+		if (intr_cb->func)
+			intr_cb->func(pdev->irq, intr_cb->data);
+	spin_unlock(&mdev->irq_info.mic_intr_lock);
+}
+
+/**
+ * mic_interrupt - Generic interrupt handler for
+ * MSI and INTx based interrupts.
+ */
+static irqreturn_t mic_interrupt(int irq, void *dev)
+{
+	struct mic_device *mdev = dev;
+	struct mic_intr_info *info = mdev->intr_info;
+	u32 mask;
+	int i;
+
+	mask = mdev->ops->ack_interrupt(mdev);
+	if (!mask)
+		return IRQ_NONE;
+
+	for (i = info->intr_start_idx[MIC_INTR_DB];
+			i < info->intr_len[MIC_INTR_DB]; i++)
+		if (mask & BIT(i))
+			mic_invoke_callback(mdev, i);
+
+	return IRQ_HANDLED;
+}
+
+/* Return the interrupt offset from the index. Index is 0 based. */
+static u16 mic_map_src_to_offset(struct mic_device *mdev,
+		int intr_src, enum mic_intr_type type) {
+
+	if (type >= MIC_NUM_INTR_TYPES)
+		return MIC_NUM_OFFSETS;
+	if (intr_src >= mdev->intr_info->intr_len[type])
+		return MIC_NUM_OFFSETS;
+
+	return mdev->intr_info->intr_start_idx[type] + intr_src;
+}
+
+/* Return next available msix_entry. */
+static struct msix_entry *mic_get_available_vector(struct mic_device *mdev)
+{
+	int i;
+	struct mic_irq_info *info = &mdev->irq_info;
+
+	for (i = 0; i < info->num_vectors; i++)
+		if (!info->mic_msi_map[i])
+			return &info->msix_entries[i];
+	return NULL;
+}
+
+/**
+ * mic_register_intr_callback - Register a callback handler for the
+ * given source id.
+ *
+ * @mdev: pointer to the mic_device instance
+ * @idx: The source id to be registered.
+ * @func: The function to be called when the source id receives
+ * the interrupt.
+ * @data: Private data of the requester.
+ * Return the callback structure that was registered or an
+ * appropriate error on failure.
+ */
+static struct mic_intr_cb *mic_register_intr_callback(struct mic_device *mdev,
+			u8 idx, irqreturn_t (*func) (int irq, void *dev),
+			void *data)
+{
+	struct mic_intr_cb *intr_cb;
+	unsigned long flags;
+	int rc;
+	intr_cb = kmalloc(sizeof(struct mic_intr_cb), GFP_KERNEL);
+
+	if (!intr_cb)
+		return ERR_PTR(-ENOMEM);
+
+	intr_cb->func = func;
+	intr_cb->data = data;
+	intr_cb->cb_id = ida_simple_get(&mdev->irq_info.cb_ida,
+		0, 0, GFP_KERNEL);
+	if (intr_cb->cb_id < 0) {
+		rc = intr_cb->cb_id;
+		goto ida_fail;
+	}
+
+	spin_lock_irqsave(&mdev->irq_info.mic_intr_lock, flags);
+	list_add_tail(&intr_cb->list, &mdev->irq_info.cb_list[idx]);
+	spin_unlock_irqrestore(&mdev->irq_info.mic_intr_lock, flags);
+
+	return intr_cb;
+ida_fail:
+	kfree(intr_cb);
+	return ERR_PTR(rc);
+}
+
+/**
+ * mic_unregister_intr_callback - Unregister the callback handler
+ * identified by its callback id.
+ *
+ * @mdev: pointer to the mic_device instance
+ * @idx: The callback structure id to be unregistered.
+ * Return the source id that was unregistered or MIC_NUM_OFFSETS if no
+ * such callback handler was found.
+ */
+static u8 mic_unregister_intr_callback(struct mic_device *mdev, u32 idx)
+{
+	struct list_head *pos, *tmp;
+	struct mic_intr_cb *intr_cb;
+	unsigned long flags;
+	int i;
+
+	for (i = 0;  i < MIC_NUM_OFFSETS; i++) {
+		spin_lock_irqsave(&mdev->irq_info.mic_intr_lock, flags);
+		list_for_each_safe(pos, tmp, &mdev->irq_info.cb_list[i]) {
+			intr_cb = list_entry(pos, struct mic_intr_cb, list);
+			if (intr_cb->cb_id == idx) {
+				list_del(pos);
+				ida_simple_remove(&mdev->irq_info.cb_ida,
+					intr_cb->cb_id);
+				kfree(intr_cb);
+				spin_unlock_irqrestore(
+					&mdev->irq_info.mic_intr_lock, flags);
+				return i;
+			}
+		}
+		spin_unlock_irqrestore(&mdev->irq_info.mic_intr_lock, flags);
+	}
+	return MIC_NUM_OFFSETS;
+}
+
+/**
+ * mic_setup_msix - Initializes MSIx interrupts.
+ *
+ * @mdev: pointer to mic_device instance
+ *
+ *
+ * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
+ */
+static int mic_setup_msix(struct mic_device *mdev, struct pci_dev *pdev)
+{
+	int rc, i;
+
+	mdev->irq_info.msix_entries = kmalloc(sizeof(struct msix_entry) *
+			MIC_MIN_MSIX, GFP_KERNEL);
+	if (!mdev->irq_info.msix_entries) {
+		rc = -ENOMEM;
+		goto err_nomem1;
+	}
+
+	for (i = 0; i < MIC_MIN_MSIX; i++)
+		mdev->irq_info.msix_entries[i].entry = i;
+
+	rc = pci_enable_msix(pdev, mdev->irq_info.msix_entries,
+		MIC_MIN_MSIX);
+	if (rc) {
+		dev_dbg(&pdev->dev, "Error enabling MSIx. rc = %d\n", rc);
+		goto err_enable_msix;
+	}
+
+	mdev->irq_info.num_vectors = MIC_MIN_MSIX;
+	mdev->irq_info.mic_msi_map = kzalloc((sizeof(u32) *
+		mdev->irq_info.num_vectors), GFP_KERNEL);
+
+	if (!mdev->irq_info.mic_msi_map) {
+		rc = -ENOMEM;
+		goto err_nomem2;
+	}
+
+	dev_dbg(mdev->sdev->parent,
+		"%d MSIx irqs setup\n", mdev->irq_info.num_vectors);
+	return 0;
+err_nomem2:
+	pci_disable_msix(pdev);
+err_enable_msix:
+	kfree(mdev->irq_info.msix_entries);
+err_nomem1:
+	mdev->irq_info.num_vectors = 0;
+	return rc;
+}
+
+/**
+ * mic_setup_callbacks - Initialize data structures needed
+ * to handle callbacks.
+ *
+ * @mdev: pointer to mic_device instance
+ */
+static int mic_setup_callbacks(struct mic_device *mdev)
+{
+	int i;
+
+	mdev->irq_info.cb_list = kmalloc(sizeof(struct list_head) *
+		MIC_NUM_OFFSETS, GFP_KERNEL);
+	if (!mdev->irq_info.cb_list)
+		return -ENOMEM;
+
+	for (i = 0; i < MIC_NUM_OFFSETS; i++)
+		INIT_LIST_HEAD(&mdev->irq_info.cb_list[i]);
+	ida_init(&mdev->irq_info.cb_ida);
+	spin_lock_init(&mdev->irq_info.mic_intr_lock);
+	return 0;
+}
+
+/**
+ * mic_release_callbacks - Uninitialize data structures needed
+ * to handle callbacks.
+ *
+ * @mdev: pointer to mic_device instance
+ */
+static void mic_release_callbacks(struct mic_device *mdev)
+{
+	unsigned long flags;
+	struct list_head *pos, *tmp;
+	struct mic_intr_cb *intr_cb;
+	int i;
+
+	for (i = 0; i < MIC_NUM_OFFSETS; i++) {
+		spin_lock_irqsave(&mdev->irq_info.mic_intr_lock, flags);
+
+		if (list_empty(&mdev->irq_info.cb_list[i])) {
+			spin_unlock_irqrestore(&mdev->irq_info.mic_intr_lock,
+				flags);
+			break;
+		}
+
+		list_for_each_safe(pos, tmp, &mdev->irq_info.cb_list[i]) {
+			intr_cb = list_entry(pos, struct mic_intr_cb, list);
+			list_del(pos);
+			ida_simple_remove(&mdev->irq_info.cb_ida,
+				intr_cb->cb_id);
+			kfree(intr_cb);
+		}
+		spin_unlock_irqrestore(&mdev->irq_info.mic_intr_lock, flags);
+	}
+	ida_destroy(&mdev->irq_info.cb_ida);
+	kfree(mdev->irq_info.cb_list);
+}
+
+/**
+ * mic_setup_msi - Initializes MSI interrupts.
+ *
+ * @mdev: pointer to mic_device instance
+ * @pdev: PCI device structure
+ *
+ * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
+ */
+static int mic_setup_msi(struct mic_device *mdev, struct pci_dev *pdev)
+{
+	int rc;
+
+	rc = pci_enable_msi(pdev);
+	if (rc) {
+		dev_dbg(&pdev->dev, "Error enabling MSI. rc = %d\n", rc);
+		return rc;
+	}
+
+	mdev->irq_info.num_vectors = 1;
+	mdev->irq_info.mic_msi_map = kzalloc((sizeof(u32) *
+		mdev->irq_info.num_vectors), GFP_KERNEL);
+
+	if (!mdev->irq_info.mic_msi_map) {
+		rc = -ENOMEM;
+		goto err_nomem1;
+	}
+
+	rc = mic_setup_callbacks(mdev);
+	if (rc) {
+		dev_err(&pdev->dev, "Error setting up callbacks\n");
+		goto err_nomem2;
+	}
+
+	rc = request_irq(pdev->irq, mic_interrupt, 0 , "mic-msi", mdev);
+	if (rc) {
+		dev_err(&pdev->dev, "Error allocating MSI interrupt\n");
+		goto err_irq_req_fail;
+	}
+
+	dev_dbg(&pdev->dev, "%d MSI irqs setup\n", mdev->irq_info.num_vectors);
+	return 0;
+err_irq_req_fail:
+	mic_release_callbacks(mdev);
+err_nomem2:
+	kfree(mdev->irq_info.mic_msi_map);
+err_nomem1:
+	pci_disable_msi(pdev);
+	mdev->irq_info.num_vectors = 0;
+	return rc;
+}
+
+/**
+ * mic_setup_intx - Initializes legacy interrupts.
+ *
+ * @mdev: pointer to mic_device instance
+ * @pdev: PCI device structure
+ *
+ * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
+ */
+static int mic_setup_intx(struct mic_device *mdev, struct pci_dev *pdev)
+{
+	int rc;
+
+	pci_msi_off(pdev);
+
+	/* Enable intx */
+	pci_intx(pdev, 1);
+	rc = mic_setup_callbacks(mdev);
+	if (rc) {
+		dev_err(&pdev->dev, "Error setting up callbacks\n");
+		goto err_nomem;
+	}
+
+	rc = request_irq(pdev->irq, mic_interrupt,
+		IRQF_SHARED, "mic-intx", mdev);
+	if (rc)
+		goto err;
+
+	dev_dbg(&pdev->dev, "intx irq setup\n");
+	return 0;
+err:
+	mic_release_callbacks(mdev);
+err_nomem:
+	return rc;
+}
+
+/**
+ * mic_next_db - Retrieve the next doorbell interrupt source id.
+ * The id is picked sequentially from the available pool of
+ * doorlbell ids.
+ *
+ * @mdev: pointer to the mic_device instance.
+ *
+ * Returns the next doorbell interrupt source.
+ */
+int mic_next_db(struct mic_device *mdev)
+{
+	int next_db;
+
+	next_db = mdev->irq_info.next_avail_src %
+		mdev->intr_info->intr_len[MIC_INTR_DB];
+	mdev->irq_info.next_avail_src++;
+	return next_db;
+}
+
+#define COOKIE_ID_SHIFT 16
+#define GET_ENTRY(cookie) ((cookie) & 0xFFFF)
+#define GET_OFFSET(cookie) ((cookie) >> COOKIE_ID_SHIFT)
+#define MK_COOKIE(x, y) ((x) | (y) << COOKIE_ID_SHIFT)
+
+/**
+ * mic_request_irq - request an irq. mic_mutex needs
+ * to be held before calling this function.
+ *
+ * @mdev: pointer to mic_device instance
+ * @func: The callback function that handles the interrupt.
+ * The function needs to call ack_interrupts
+ * (mdev->ops->ack_interrupt(mdev)) when handling the interrupts.
+ * @name: The ASCII name of the callee requesting the irq.
+ * @data: private data that is returned back when calling the
+ * function handler.
+ * @intr_src: The source id of the requester. Its the doorbell id
+ * for Doorbell interrupts and DMA channel id for DMA interrupts.
+ * @type: The type of interrupt. Values defined in mic_intr_type
+ *
+ * returns: The cookie that is transparent to the caller. Passed
+ * back when calling mic_free_irq. An appropriate error code
+ * is returned on failure. Caller needs to use IS_ERR(return_val)
+ * to check for failure and PTR_ERR(return_val) to obtained the
+ * error code.
+ *
+ */
+struct mic_irq *mic_request_irq(struct mic_device *mdev,
+	irqreturn_t (*func)(int irq, void *dev),
+	const char *name, void *data, int intr_src,
+	enum mic_intr_type type)
+{
+	u16 offset;
+	int rc = 0;
+	struct msix_entry *msix = NULL;
+	unsigned long cookie = 0;
+	u16 entry;
+	struct mic_intr_cb *intr_cb;
+	struct pci_dev *pdev = container_of(mdev->sdev->parent,
+		struct pci_dev, dev);
+
+	offset = mic_map_src_to_offset(mdev, intr_src, type);
+	if (offset >= MIC_NUM_OFFSETS) {
+		dev_err(mdev->sdev->parent,
+				"Error mapping index %d to a valid source id.\n",
+				intr_src);
+		rc = -EINVAL;
+		goto err;
+	}
+
+	if (mdev->irq_info.num_vectors > 1) {
+		msix = mic_get_available_vector(mdev);
+		if (!msix) {
+			dev_err(mdev->sdev->parent,
+			"No MSIx vectors available for use.\n");
+			rc = -ENOSPC;
+			goto err;
+		}
+
+		rc = request_irq(msix->vector, func, 0, name, data);
+		if (rc) {
+			dev_dbg(mdev->sdev->parent,
+				"request irq failed rc = %d\n", rc);
+			goto err;
+		}
+		entry = msix->entry;
+		mdev->irq_info.mic_msi_map[entry] |= BIT(offset);
+		mdev->intr_ops->program_msi_to_src_map(mdev,
+				entry, offset, true);
+		cookie = MK_COOKIE(entry, offset);
+		dev_dbg(mdev->sdev->parent, "irq: %d assigned for src: %d\n",
+			msix->vector, intr_src);
+	} else {
+		intr_cb = mic_register_intr_callback(mdev,
+				offset, func, data);
+		if (IS_ERR(intr_cb)) {
+			dev_err(mdev->sdev->parent,
+			"No available callback entries for use\n");
+			rc = PTR_ERR(intr_cb);
+			goto err;
+		}
+
+		entry = 0;
+		if (pci_dev_msi_enabled(pdev)) {
+			mdev->irq_info.mic_msi_map[entry] |= (1 << offset);
+			mdev->intr_ops->program_msi_to_src_map(mdev,
+				entry, offset, true);
+		}
+		cookie = MK_COOKIE(entry, intr_cb->cb_id);
+		dev_dbg(mdev->sdev->parent, "callback %d registered for src: %d\n",
+			intr_cb->cb_id, intr_src);
+	}
+	return (struct mic_irq *)cookie;
+err:
+	return ERR_PTR(rc);
+}
+
+/**
+ * mic_free_irq - free irq. mic_mutex
+ *  needs to be held before calling this function.
+ *
+ * @mdev: pointer to mic_device instance
+ * @cookie: cookie obtained during a successful call to mic_request_irq
+ * @data: private data specified by the calling function during the
+ * mic_request_irq
+ *
+ * returns: none.
+ */
+void mic_free_irq(struct mic_device *mdev,
+	struct mic_irq *cookie, void *data)
+{
+	u32 offset;
+	u32 entry;
+	u8 src_id;
+	unsigned int irq;
+	struct pci_dev *pdev = container_of(mdev->sdev->parent,
+		struct pci_dev, dev);
+
+	entry = GET_ENTRY((unsigned long)cookie);
+	offset = GET_OFFSET((unsigned long)cookie);
+	if (mdev->irq_info.num_vectors > 1) {
+		if (entry >= mdev->irq_info.num_vectors) {
+			dev_warn(mdev->sdev->parent,
+				"entry %d should be < num_irq %d\n",
+				entry, mdev->irq_info.num_vectors);
+			return;
+		}
+		irq = mdev->irq_info.msix_entries[entry].vector;
+		free_irq(irq, data);
+		mdev->irq_info.mic_msi_map[entry] &= ~(BIT(offset));
+		mdev->intr_ops->program_msi_to_src_map(mdev,
+			entry, offset, false);
+
+		dev_dbg(mdev->sdev->parent, "irq: %d freed\n", irq);
+	} else {
+		irq = pdev->irq;
+		src_id = mic_unregister_intr_callback(mdev, offset);
+		if (src_id >= MIC_NUM_OFFSETS) {
+			dev_warn(mdev->sdev->parent, "Error unregistering callback\n");
+			return;
+		}
+		if (pci_dev_msi_enabled(pdev)) {
+			mdev->irq_info.mic_msi_map[entry] &= ~(BIT(src_id));
+			mdev->intr_ops->program_msi_to_src_map(mdev,
+				entry, src_id, false);
+		}
+		dev_dbg(mdev->sdev->parent, "callback %d unregistered for src: %d\n",
+			offset, src_id);
+	}
+}
+
+/**
+ * mic_setup_interrupts - Initializes interrupts.
+ *
+ * @mdev: pointer to mic_device instance
+ * @pdev: PCI device structure
+ *
+ * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
+ */
+int mic_setup_interrupts(struct mic_device *mdev, struct pci_dev *pdev)
+{
+	int rc;
+
+	rc = mic_setup_msix(mdev, pdev);
+	if (!rc)
+		goto done;
+
+	rc = mic_setup_msi(mdev, pdev);
+	if (!rc)
+		goto done;
+
+	rc = mic_setup_intx(mdev, pdev);
+	if (rc) {
+		dev_err(mdev->sdev->parent, "no usable interrupts\n");
+		return rc;
+	}
+done:
+	mdev->intr_ops->enable_interrupts(mdev);
+	return 0;
+}
+
+/**
+ * mic_free_interrupts - Frees interrupts setup by mic_setup_interrupts
+ *
+ * @mdev: pointer to mic_device instance
+ * @pdev: PCI device structure
+ *
+ * returns none.
+ */
+void mic_free_interrupts(struct mic_device *mdev, struct pci_dev *pdev)
+{
+	int i;
+
+	mdev->intr_ops->disable_interrupts(mdev);
+	if (mdev->irq_info.num_vectors > 1) {
+		for (i = 0; i < mdev->irq_info.num_vectors; i++) {
+			if (mdev->irq_info.mic_msi_map[i])
+				dev_warn(&pdev->dev, "irq %d may still be in use.\n",
+					mdev->irq_info.msix_entries[i].vector);
+		}
+		kfree(mdev->irq_info.mic_msi_map);
+		kfree(mdev->irq_info.msix_entries);
+		pci_disable_msix(pdev);
+	} else {
+		if (pci_dev_msi_enabled(pdev)) {
+			free_irq(pdev->irq, mdev);
+			kfree(mdev->irq_info.mic_msi_map);
+			pci_disable_msi(pdev);
+		} else {
+			free_irq(pdev->irq, mdev);
+		}
+		mic_release_callbacks(mdev);
+	}
+}
+
+/**
+ * mic_intr_restore - Restore MIC interrupt registers.
+ *
+ * @mdev: pointer to mic_device instance.
+ *
+ * Restore the interrupt registers to values previously
+ * stored in the SW data structures. mic_mutex needs to
+ * be held before calling this function.
+ *
+ * returns None.
+ */
+void mic_intr_restore(struct mic_device *mdev)
+{
+	int entry, offset;
+	struct pci_dev *pdev = container_of(mdev->sdev->parent,
+		struct pci_dev, dev);
+
+	if (!pci_dev_msi_enabled(pdev))
+		return;
+
+	for (entry = 0; entry < mdev->irq_info.num_vectors; entry++) {
+		for (offset = 0; offset < MIC_NUM_OFFSETS; offset++) {
+			if (mdev->irq_info.mic_msi_map[entry] & BIT(offset))
+				mdev->intr_ops->program_msi_to_src_map(mdev,
+					entry, offset, true);
+		}
+	}
+}
diff --git a/drivers/misc/mic/host/mic_intr.h b/drivers/misc/mic/host/mic_intr.h
new file mode 100644
index 000000000000..6091aa97e116
--- /dev/null
+++ b/drivers/misc/mic/host/mic_intr.h
@@ -0,0 +1,137 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC Host driver.
+ *
+ */
+#ifndef _MIC_INTR_H_
+#define _MIC_INTR_H_
+
+/*
+ * The minimum number of msix vectors required for normal operation.
+ * 3 for virtio network, console and block devices.
+ * 1 for card shutdown notifications.
+ */
+#define MIC_MIN_MSIX 4
+#define MIC_NUM_OFFSETS 32
+
+/**
+ * mic_intr_source - The type of source that will generate
+ * the interrupt.The number of types needs to be in sync with
+ * MIC_NUM_INTR_TYPES
+ *
+ * MIC_INTR_DB: The source is a doorbell
+ * MIC_INTR_DMA: The source is a DMA channel
+ * MIC_INTR_ERR: The source is an error interrupt e.g. SBOX ERR
+ * MIC_NUM_INTR_TYPES: Total number of interrupt sources.
+ */
+enum mic_intr_type {
+	MIC_INTR_DB = 0,
+	MIC_INTR_DMA,
+	MIC_INTR_ERR,
+	MIC_NUM_INTR_TYPES
+};
+
+/**
+ * struct mic_intr_info - Contains h/w specific interrupt sources
+ * information.
+ *
+ * @intr_start_idx: Contains the starting indexes of the
+ * interrupt types.
+ * @intr_len: Contains the length of the interrupt types.
+ */
+struct mic_intr_info {
+	u16 intr_start_idx[MIC_NUM_INTR_TYPES];
+	u16 intr_len[MIC_NUM_INTR_TYPES];
+};
+
+/**
+ * struct mic_irq_info - OS specific irq information
+ *
+ * @next_avail_src: next available doorbell that can be assigned.
+ * @msix_entries: msix entries allocated while setting up MSI-x
+ * @mic_msi_map: The MSI/MSI-x mapping information.
+ * @num_vectors: The number of MSI/MSI-x vectors that have been allocated.
+ * @cb_ida: callback ID allocator to track the callbacks registered.
+ * @mic_intr_lock: spinlock to protect the interrupt callback list.
+ * @cb_list: Array of callback lists one for each source.
+ */
+struct mic_irq_info {
+	int next_avail_src;
+	struct msix_entry *msix_entries;
+	u32 *mic_msi_map;
+	u16 num_vectors;
+	struct ida cb_ida;
+	spinlock_t mic_intr_lock;
+	struct list_head *cb_list;
+};
+
+/**
+ * struct mic_intr_cb - Interrupt callback structure.
+ *
+ * @func: The callback function
+ * @data: Private data of the requester.
+ * @cb_id: The callback id. Identifies this callback.
+ * @list: list head pointing to the next callback structure.
+ */
+struct mic_intr_cb {
+	irqreturn_t (*func) (int irq, void *data);
+	void *data;
+	int cb_id;
+	struct list_head list;
+};
+
+/**
+ * struct mic_irq - opaque pointer used as cookie
+ */
+struct mic_irq;
+
+/* Forward declaration */
+struct mic_device;
+
+/**
+ * struct mic_hw_intr_ops: MIC HW specific interrupt operations
+ * @intr_init: Initialize H/W specific interrupt information.
+ * @enable_interrupts: Enable interrupts from the hardware.
+ * @disable_interrupts: Disable interrupts from the hardware.
+ * @program_msi_to_src_map: Update MSI mapping registers with
+ * irq information.
+ * @read_msi_to_src_map: Read MSI mapping registers containing
+ * irq information.
+ */
+struct mic_hw_intr_ops {
+	void (*intr_init)(struct mic_device *mdev);
+	void (*enable_interrupts)(struct mic_device *mdev);
+	void (*disable_interrupts)(struct mic_device *mdev);
+	void (*program_msi_to_src_map) (struct mic_device *mdev,
+			int idx, int intr_src, bool set);
+	u32 (*read_msi_to_src_map) (struct mic_device *mdev,
+			int idx);
+};
+
+int mic_next_db(struct mic_device *mdev);
+struct mic_irq *mic_request_irq(struct mic_device *mdev,
+	irqreturn_t (*func)(int irq, void *data),
+	const char *name, void *data, int intr_src,
+	enum mic_intr_type type);
+
+void mic_free_irq(struct mic_device *mdev,
+		struct mic_irq *cookie, void *data);
+int mic_setup_interrupts(struct mic_device *mdev, struct pci_dev *pdev);
+void mic_free_interrupts(struct mic_device *mdev, struct pci_dev *pdev);
+void mic_intr_restore(struct mic_device *mdev);
+#endif
diff --git a/drivers/misc/mic/host/mic_main.c b/drivers/misc/mic/host/mic_main.c
index 228c96c04a03..332a15e4215b 100644
--- a/drivers/misc/mic/host/mic_main.c
+++ b/drivers/misc/mic/host/mic_main.c
@@ -23,13 +23,13 @@
  * 2) Enable per vring interrupt support.
  */
 #include <linux/fs.h>
-#include <linux/idr.h>
 #include <linux/module.h>
 #include <linux/pci.h>
 
 #include "../common/mic_device.h"
 #include "mic_device.h"
 #include "mic_x100.h"
+#include "mic_smpt.h"
 
 static const char mic_driver_name[] = "mic";
 
@@ -75,6 +75,8 @@ static void mic_ops_init(struct mic_device *mdev)
 	switch (mdev->family) {
 	case MIC_FAMILY_X100:
 		mdev->ops = &mic_x100_ops;
+		mdev->intr_ops = &mic_x100_intr_ops;
+		mdev->smpt_ops = &mic_x100_smpt_ops;
 		break;
 	default:
 		break;
@@ -132,6 +134,8 @@ mic_device_init(struct mic_device *mdev, struct pci_dev *pdev)
 	mdev->stepping = pdev->revision;
 	mic_ops_init(mdev);
 	mic_sysfs_init(mdev);
+	mutex_init(&mdev->mic_mutex);
+	mdev->irq_info.next_avail_src = 0;
 }
 
 /**
@@ -201,6 +205,18 @@ static int mic_probe(struct pci_dev *pdev,
 		goto unmap_mmio;
 	}
 
+	mdev->intr_ops->intr_init(mdev);
+	rc = mic_setup_interrupts(mdev, pdev);
+	if (rc) {
+		dev_err(&pdev->dev, "mic_setup_interrupts failed %d\n", rc);
+		goto unmap_aper;
+	}
+	rc = mic_smpt_init(mdev);
+	if (rc) {
+		dev_err(&pdev->dev, "smpt_init failed %d\n", rc);
+		goto free_interrupts;
+	}
+
 	pci_set_drvdata(pdev, mdev);
 
 	mdev->sdev = device_create_with_groups(g_mic_class, &pdev->dev,
@@ -210,9 +226,13 @@ static int mic_probe(struct pci_dev *pdev,
 		rc = PTR_ERR(mdev->sdev);
 		dev_err(&pdev->dev,
 			"device_create_with_groups failed rc %d\n", rc);
-		goto unmap_aper;
+		goto smpt_uninit;
 	}
 	return 0;
+smpt_uninit:
+	mic_smpt_uninit(mdev);
+free_interrupts:
+	mic_free_interrupts(mdev, pdev);
 unmap_aper:
 	iounmap(mdev->aper.va);
 unmap_mmio:
@@ -246,6 +266,8 @@ static void mic_remove(struct pci_dev *pdev)
 		return;
 
 	device_destroy(g_mic_class, MKDEV(MAJOR(g_mic_devno), mdev->id));
+	mic_smpt_uninit(mdev);
+	mic_free_interrupts(mdev, pdev);
 	iounmap(mdev->mmio.va);
 	iounmap(mdev->aper.va);
 	pci_release_regions(pdev);
diff --git a/drivers/misc/mic/host/mic_smpt.c b/drivers/misc/mic/host/mic_smpt.c
new file mode 100644
index 000000000000..a3462076bc57
--- /dev/null
+++ b/drivers/misc/mic/host/mic_smpt.c
@@ -0,0 +1,442 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC Host driver.
+ *
+ */
+#include <linux/pci.h>
+
+#include "../common/mic_device.h"
+#include "mic_device.h"
+#include "mic_smpt.h"
+
+static inline u64 mic_system_page_mask(struct mic_device *mdev)
+{
+	return (1ULL << mdev->smpt->info.page_shift) - 1ULL;
+}
+
+static inline u8 mic_sys_addr_to_smpt(struct mic_device *mdev, dma_addr_t pa)
+{
+	return (pa - mdev->smpt->info.base) >> mdev->smpt->info.page_shift;
+}
+
+static inline u64 mic_smpt_to_pa(struct mic_device *mdev, u8 index)
+{
+	return mdev->smpt->info.base + (index * mdev->smpt->info.page_size);
+}
+
+static inline u64 mic_smpt_offset(struct mic_device *mdev, dma_addr_t pa)
+{
+	return pa & mic_system_page_mask(mdev);
+}
+
+static inline u64 mic_smpt_align_low(struct mic_device *mdev, dma_addr_t pa)
+{
+	return ALIGN(pa - mic_system_page_mask(mdev),
+		mdev->smpt->info.page_size);
+}
+
+static inline u64 mic_smpt_align_high(struct mic_device *mdev, dma_addr_t pa)
+{
+	return ALIGN(pa, mdev->smpt->info.page_size);
+}
+
+/* Total Cumulative system memory accessible by MIC across all SMPT entries */
+static inline u64 mic_max_system_memory(struct mic_device *mdev)
+{
+	return mdev->smpt->info.num_reg * mdev->smpt->info.page_size;
+}
+
+/* Maximum system memory address accessible by MIC */
+static inline u64 mic_max_system_addr(struct mic_device *mdev)
+{
+	return mdev->smpt->info.base + mic_max_system_memory(mdev) - 1ULL;
+}
+
+/* Check if the DMA address is a MIC system memory address */
+static inline bool
+mic_is_system_addr(struct mic_device *mdev, dma_addr_t pa)
+{
+	return pa >= mdev->smpt->info.base && pa <= mic_max_system_addr(mdev);
+}
+
+/* Populate an SMPT entry and update the reference counts. */
+static void mic_add_smpt_entry(int spt, s64 *ref, u64 addr,
+		int entries, struct mic_device *mdev)
+{
+	struct mic_smpt_info *smpt_info = mdev->smpt;
+	int i;
+
+	for (i = spt; i < spt + entries; i++,
+		addr += smpt_info->info.page_size) {
+		if (!smpt_info->entry[i].ref_count &&
+			(smpt_info->entry[i].dma_addr != addr)) {
+			mdev->smpt_ops->set(mdev, addr, i);
+			smpt_info->entry[i].dma_addr = addr;
+		}
+		smpt_info->entry[i].ref_count += ref[i - spt];
+	}
+}
+
+/*
+ * Find an available MIC address in MIC SMPT address space
+ * for a given DMA address and size.
+ */
+static dma_addr_t mic_smpt_op(struct mic_device *mdev, u64 dma_addr,
+				int entries, s64 *ref, size_t size)
+{
+	int spt;
+	int ae = 0;
+	int i;
+	unsigned long flags;
+	dma_addr_t mic_addr = 0;
+	dma_addr_t addr = dma_addr;
+	struct mic_smpt_info *smpt_info = mdev->smpt;
+
+	spin_lock_irqsave(&smpt_info->smpt_lock, flags);
+
+	/* find existing entries */
+	for (i = 0; i < smpt_info->info.num_reg; i++) {
+		if (smpt_info->entry[i].dma_addr == addr) {
+			ae++;
+			addr += smpt_info->info.page_size;
+		} else if (ae) /* cannot find contiguous entries */
+			goto not_found;
+
+		if (ae == entries)
+			goto found;
+	}
+
+	/* find free entry */
+	for (ae = 0, i = 0; i < smpt_info->info.num_reg; i++) {
+		ae = (smpt_info->entry[i].ref_count == 0) ? ae + 1 : 0;
+		if (ae == entries)
+			goto found;
+	}
+
+not_found:
+	spin_unlock_irqrestore(&smpt_info->smpt_lock, flags);
+	return mic_addr;
+
+found:
+	spt = i - entries + 1;
+	mic_addr = mic_smpt_to_pa(mdev, spt);
+	mic_add_smpt_entry(spt, ref, dma_addr, entries, mdev);
+	smpt_info->map_count++;
+	smpt_info->ref_count += (s64)size;
+	spin_unlock_irqrestore(&smpt_info->smpt_lock, flags);
+	return mic_addr;
+}
+
+/*
+ * Returns number of smpt entries needed for dma_addr to dma_addr + size
+ * also returns the reference count array for each of those entries
+ * and the starting smpt address
+ */
+static int mic_get_smpt_ref_count(struct mic_device *mdev, dma_addr_t dma_addr,
+				size_t size, s64 *ref,  u64 *smpt_start)
+{
+	u64 start =  dma_addr;
+	u64 end = dma_addr + size;
+	int i = 0;
+
+	while (start < end) {
+		ref[i++] = min(mic_smpt_align_high(mdev, start + 1),
+			end) - start;
+		start = mic_smpt_align_high(mdev, start + 1);
+	}
+
+	if (smpt_start)
+		*smpt_start = mic_smpt_align_low(mdev, dma_addr);
+
+	return i;
+}
+
+/*
+ * mic_to_dma_addr - Converts a MIC address to a DMA address.
+ *
+ * @mdev: pointer to mic_device instance.
+ * @mic_addr: MIC address.
+ *
+ * returns a DMA address.
+ */
+static dma_addr_t
+mic_to_dma_addr(struct mic_device *mdev, dma_addr_t mic_addr)
+{
+	struct mic_smpt_info *smpt_info = mdev->smpt;
+	int spt;
+	dma_addr_t dma_addr;
+
+	if (!mic_is_system_addr(mdev, mic_addr)) {
+		dev_err(mdev->sdev->parent,
+		"mic_addr is invalid. mic_addr = 0x%llx\n", mic_addr);
+		return -EINVAL;
+	}
+	spt = mic_sys_addr_to_smpt(mdev, mic_addr);
+	dma_addr = smpt_info->entry[spt].dma_addr +
+		mic_smpt_offset(mdev, mic_addr);
+	return dma_addr;
+}
+
+/**
+ * mic_map - Maps a DMA address to a MIC physical address.
+ *
+ * @mdev: pointer to mic_device instance.
+ * @dma_addr: DMA address.
+ * @size: Size of the region to be mapped.
+ *
+ * This API converts the DMA address provided to a DMA address understood
+ * by MIC. Caller should check for errors by calling mic_map_error(..).
+ *
+ * returns DMA address as required by MIC.
+ */
+dma_addr_t mic_map(struct mic_device *mdev, dma_addr_t dma_addr, size_t size)
+{
+	dma_addr_t mic_addr = 0;
+	int num_entries;
+	s64 *ref;
+	u64 smpt_start;
+
+	if (!size || size > mic_max_system_memory(mdev))
+		return mic_addr;
+
+	ref = kmalloc(mdev->smpt->info.num_reg * sizeof(s64), GFP_KERNEL);
+	if (!ref)
+		return mic_addr;
+
+	num_entries = mic_get_smpt_ref_count(mdev, dma_addr, size,
+		ref, &smpt_start);
+
+	/* Set the smpt table appropriately and get 16G aligned mic address */
+	mic_addr = mic_smpt_op(mdev, smpt_start, num_entries, ref, size);
+
+	kfree(ref);
+
+	/*
+	 * If mic_addr is zero then its an error case
+	 * since mic_addr can never be zero.
+	 * else generate mic_addr by adding the 16G offset in dma_addr
+	 */
+	if (!mic_addr && MIC_FAMILY_X100 == mdev->family) {
+		dev_err(mdev->sdev->parent,
+			"mic_map failed dma_addr 0x%llx size 0x%lx\n",
+			dma_addr, size);
+		return mic_addr;
+	} else {
+		return mic_addr + mic_smpt_offset(mdev, dma_addr);
+	}
+}
+
+/**
+ * mic_unmap - Unmaps a MIC physical address.
+ *
+ * @mdev: pointer to mic_device instance.
+ * @mic_addr: MIC physical address.
+ * @size: Size of the region to be unmapped.
+ *
+ * This API unmaps the mappings created by mic_map(..).
+ *
+ * returns None.
+ */
+void mic_unmap(struct mic_device *mdev, dma_addr_t mic_addr, size_t size)
+{
+	struct mic_smpt_info *smpt_info = mdev->smpt;
+	s64 *ref;
+	int num_smpt;
+	int spt;
+	int i;
+	unsigned long flags;
+
+	if (!size)
+		return;
+
+	if (!mic_is_system_addr(mdev, mic_addr)) {
+		dev_err(mdev->sdev->parent,
+			"invalid address: 0x%llx\n", mic_addr);
+		return;
+	}
+
+	spt = mic_sys_addr_to_smpt(mdev, mic_addr);
+	ref = kmalloc(mdev->smpt->info.num_reg * sizeof(s64), GFP_KERNEL);
+	if (!ref)
+		return;
+
+	/* Get number of smpt entries to be mapped, ref count array */
+	num_smpt = mic_get_smpt_ref_count(mdev, mic_addr, size, ref, NULL);
+
+	spin_lock_irqsave(&smpt_info->smpt_lock, flags);
+	smpt_info->unmap_count++;
+	smpt_info->ref_count -= (s64)size;
+
+	for (i = spt; i < spt + num_smpt; i++) {
+		smpt_info->entry[i].ref_count -= ref[i - spt];
+		if (smpt_info->entry[i].ref_count < 0)
+			dev_warn(mdev->sdev->parent,
+				"ref count for entry %d is negative\n", i);
+	}
+	spin_unlock_irqrestore(&smpt_info->smpt_lock, flags);
+	kfree(ref);
+}
+
+/**
+ * mic_map_single - Maps a virtual address to a MIC physical address.
+ *
+ * @mdev: pointer to mic_device instance.
+ * @va: Kernel direct mapped virtual address.
+ * @size: Size of the region to be mapped.
+ *
+ * This API calls pci_map_single(..) for the direct mapped virtual address
+ * and then converts the DMA address provided to a DMA address understood
+ * by MIC. Caller should check for errors by calling mic_map_error(..).
+ *
+ * returns DMA address as required by MIC.
+ */
+dma_addr_t mic_map_single(struct mic_device *mdev, void *va, size_t size)
+{
+	dma_addr_t mic_addr = 0;
+	struct pci_dev *pdev = container_of(mdev->sdev->parent,
+		struct pci_dev, dev);
+	dma_addr_t dma_addr =
+		pci_map_single(pdev, va, size, PCI_DMA_BIDIRECTIONAL);
+
+	if (!pci_dma_mapping_error(pdev, dma_addr)) {
+		mic_addr = mic_map(mdev, dma_addr, size);
+		if (!mic_addr) {
+			dev_err(mdev->sdev->parent,
+				"mic_map failed dma_addr 0x%llx size 0x%lx\n",
+				dma_addr, size);
+			pci_unmap_single(pdev, dma_addr,
+				size, PCI_DMA_BIDIRECTIONAL);
+		}
+	}
+	return mic_addr;
+}
+
+/**
+ * mic_unmap_single - Unmaps a MIC physical address.
+ *
+ * @mdev: pointer to mic_device instance.
+ * @mic_addr: MIC physical address.
+ * @size: Size of the region to be unmapped.
+ *
+ * This API unmaps the mappings created by mic_map_single(..).
+ *
+ * returns None.
+ */
+void
+mic_unmap_single(struct mic_device *mdev, dma_addr_t mic_addr, size_t size)
+{
+	struct pci_dev *pdev = container_of(mdev->sdev->parent,
+		struct pci_dev, dev);
+	dma_addr_t dma_addr = mic_to_dma_addr(mdev, mic_addr);
+	mic_unmap(mdev, mic_addr, size);
+	pci_unmap_single(pdev, dma_addr, size, PCI_DMA_BIDIRECTIONAL);
+}
+
+/**
+ * mic_smpt_init - Initialize MIC System Memory Page Tables.
+ *
+ * @mdev: pointer to mic_device instance.
+ *
+ * returns 0 for success and -errno for error.
+ */
+int mic_smpt_init(struct mic_device *mdev)
+{
+	int i, err = 0;
+	dma_addr_t dma_addr;
+	struct mic_smpt_info *smpt_info;
+
+	mdev->smpt = kmalloc(sizeof(*mdev->smpt), GFP_KERNEL);
+	if (!mdev->smpt)
+		return -ENOMEM;
+
+	smpt_info = mdev->smpt;
+	mdev->smpt_ops->init(mdev);
+	smpt_info->entry = kmalloc(sizeof(struct mic_smpt)
+			* smpt_info->info.num_reg, GFP_KERNEL);
+	if (!smpt_info->entry) {
+		err = -ENOMEM;
+		goto free_smpt;
+	}
+	spin_lock_init(&smpt_info->smpt_lock);
+	for (i = 0; i < smpt_info->info.num_reg; i++) {
+		dma_addr = i * smpt_info->info.page_size;
+		smpt_info->entry[i].dma_addr = dma_addr;
+		smpt_info->entry[i].ref_count = 0;
+		mdev->smpt_ops->set(mdev, dma_addr, i);
+	}
+	smpt_info->ref_count = 0;
+	smpt_info->map_count = 0;
+	smpt_info->unmap_count = 0;
+	return 0;
+free_smpt:
+	kfree(smpt_info);
+	return err;
+}
+
+/**
+ * mic_smpt_uninit - UnInitialize MIC System Memory Page Tables.
+ *
+ * @mdev: pointer to mic_device instance.
+ *
+ * returns None.
+ */
+void mic_smpt_uninit(struct mic_device *mdev)
+{
+	struct mic_smpt_info *smpt_info = mdev->smpt;
+	int i;
+
+	dev_dbg(mdev->sdev->parent,
+		"nodeid %d SMPT ref count %lld map %lld unmap %lld\n",
+		mdev->id, smpt_info->ref_count,
+		smpt_info->map_count, smpt_info->unmap_count);
+
+	for (i = 0; i < smpt_info->info.num_reg; i++) {
+		dev_dbg(mdev->sdev->parent,
+			"SMPT entry[%d] dma_addr = 0x%llx ref_count = %lld\n",
+			i, smpt_info->entry[i].dma_addr,
+			smpt_info->entry[i].ref_count);
+		if (smpt_info->entry[i].ref_count)
+			dev_warn(mdev->sdev->parent,
+			"ref count for entry %d is not zero\n", i);
+	}
+	kfree(smpt_info->entry);
+	kfree(smpt_info);
+}
+
+/**
+ * mic_smpt_restore - Restore MIC System Memory Page Tables.
+ *
+ * @mdev: pointer to mic_device instance.
+ *
+ * Restore the SMPT registers to values previously stored in the
+ * SW data structures. Some MIC steppings lose register state
+ * across resets and this API should be called for performing
+ * a restore operation if required.
+ *
+ * returns None.
+ */
+void mic_smpt_restore(struct mic_device *mdev)
+{
+	int i;
+	dma_addr_t dma_addr;
+
+	for (i = 0; i < mdev->smpt->info.num_reg; i++) {
+		dma_addr = mdev->smpt->entry[i].dma_addr;
+		mdev->smpt_ops->set(mdev, dma_addr, i);
+	}
+}
diff --git a/drivers/misc/mic/host/mic_smpt.h b/drivers/misc/mic/host/mic_smpt.h
new file mode 100644
index 000000000000..51970abfe7df
--- /dev/null
+++ b/drivers/misc/mic/host/mic_smpt.h
@@ -0,0 +1,98 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC Host driver.
+ *
+ */
+#ifndef MIC_SMPT_H
+#define MIC_SMPT_H
+/**
+ * struct mic_smpt_ops - MIC HW specific SMPT operations.
+ * @init: Initialize hardware specific SMPT information in mic_smpt_hw_info.
+ * @set: Set the value for a particular SMPT entry.
+ */
+struct mic_smpt_ops {
+	void (*init)(struct mic_device *mdev);
+	void (*set)(struct mic_device *mdev, dma_addr_t dma_addr, u8 index);
+};
+
+/**
+ * struct mic_smpt - MIC SMPT entry information.
+ * @dma_addr: Base DMA address for this SMPT entry.
+ * @ref_count: Number of active mappings for this SMPT entry in bytes.
+ */
+struct mic_smpt {
+	dma_addr_t dma_addr;
+	s64 ref_count;
+};
+
+/**
+ * struct mic_smpt_hw_info - MIC SMPT hardware specific information.
+ * @num_reg: Number of SMPT registers.
+ * @page_shift: System memory page shift.
+ * @page_size: System memory page size.
+ * @base: System address base.
+ */
+struct mic_smpt_hw_info {
+	u8 num_reg;
+	u8 page_shift;
+	u64 page_size;
+	u64 base;
+};
+
+/**
+ * struct mic_smpt_info - MIC SMPT information.
+ * @entry: Array of SMPT entries.
+ * @smpt_lock: Spin lock protecting access to SMPT data structures.
+ * @info: Hardware specific SMPT information.
+ * @ref_count: Number of active SMPT mappings (for debug).
+ * @map_count: Number of SMPT mappings created (for debug).
+ * @unmap_count: Number of SMPT mappings destroyed (for debug).
+ */
+struct mic_smpt_info {
+	struct mic_smpt *entry;
+	spinlock_t smpt_lock;
+	struct mic_smpt_hw_info info;
+	s64 ref_count;
+	s64 map_count;
+	s64 unmap_count;
+};
+
+dma_addr_t mic_map_single(struct mic_device *mdev, void *va, size_t size);
+void mic_unmap_single(struct mic_device *mdev,
+	dma_addr_t mic_addr, size_t size);
+dma_addr_t mic_map(struct mic_device *mdev,
+	dma_addr_t dma_addr, size_t size);
+void mic_unmap(struct mic_device *mdev, dma_addr_t mic_addr, size_t size);
+
+/**
+ * mic_map_error - Check a MIC address for errors.
+ *
+ * @mdev: pointer to mic_device instance.
+ *
+ * returns Whether there was an error during mic_map..(..) APIs.
+ */
+static inline bool mic_map_error(dma_addr_t mic_addr)
+{
+	return !mic_addr;
+}
+
+int mic_smpt_init(struct mic_device *mdev);
+void mic_smpt_uninit(struct mic_device *mdev);
+void mic_smpt_restore(struct mic_device *mdev);
+
+#endif
diff --git a/drivers/misc/mic/host/mic_x100.c b/drivers/misc/mic/host/mic_x100.c
index da481b173af9..b63731691c73 100644
--- a/drivers/misc/mic/host/mic_x100.c
+++ b/drivers/misc/mic/host/mic_x100.c
@@ -24,6 +24,7 @@
 #include "../common/mic_device.h"
 #include "mic_device.h"
 #include "mic_x100.h"
+#include "mic_smpt.h"
 
 /**
  * mic_x100_write_spad - write to the scratchpad register
@@ -67,9 +68,255 @@ mic_x100_read_spad(struct mic_device *mdev, unsigned int idx)
 	return val;
 }
 
+/**
+ * mic_x100_enable_interrupts - Enable interrupts.
+ * @mdev: pointer to mic_device instance
+ */
+static void mic_x100_enable_interrupts(struct mic_device *mdev)
+{
+	u32 reg;
+	struct mic_mw *mw = &mdev->mmio;
+	u32 sice0 = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_SICE0;
+	u32 siac0 = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_SIAC0;
+
+	reg = mic_mmio_read(mw, sice0);
+	reg |= MIC_X100_SBOX_DBR_BITS(0xf) | MIC_X100_SBOX_DMA_BITS(0xff);
+	mic_mmio_write(mw, reg, sice0);
+
+	/*
+	 * Enable auto-clear when enabling interrupts. Applicable only for
+	 * MSI-x. Legacy and MSI mode cannot have auto-clear enabled.
+	 */
+	if (mdev->irq_info.num_vectors > 1) {
+		reg = mic_mmio_read(mw, siac0);
+		reg |= MIC_X100_SBOX_DBR_BITS(0xf) |
+			MIC_X100_SBOX_DMA_BITS(0xff);
+		mic_mmio_write(mw, reg, siac0);
+	}
+}
+
+/**
+ * mic_x100_disable_interrupts - Disable interrupts.
+ * @mdev: pointer to mic_device instance
+ */
+static void mic_x100_disable_interrupts(struct mic_device *mdev)
+{
+	u32 reg;
+	struct mic_mw *mw = &mdev->mmio;
+	u32 sice0 = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_SICE0;
+	u32 siac0 = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_SIAC0;
+	u32 sicc0 = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_SICC0;
+
+	reg = mic_mmio_read(mw, sice0);
+	mic_mmio_write(mw, reg, sicc0);
+
+	if (mdev->irq_info.num_vectors > 1) {
+		reg = mic_mmio_read(mw, siac0);
+		reg &= ~(MIC_X100_SBOX_DBR_BITS(0xf) |
+			MIC_X100_SBOX_DMA_BITS(0xff));
+		mic_mmio_write(mw, reg, siac0);
+	}
+}
+
+/**
+ * mic_x100_send_sbox_intr - Send an MIC_X100_SBOX interrupt to MIC.
+ * @mdev: pointer to mic_device instance
+ */
+static void mic_x100_send_sbox_intr(struct mic_device *mdev,
+			int doorbell)
+{
+	struct mic_mw *mw = &mdev->mmio;
+	u64 apic_icr_offset = MIC_X100_SBOX_APICICR0 + doorbell * 8;
+	u32 apicicr_low = mic_mmio_read(mw,
+			MIC_X100_SBOX_BASE_ADDRESS + apic_icr_offset);
+
+	/* for MIC we need to make sure we "hit" the send_icr bit (13) */
+	apicicr_low = (apicicr_low | (1 << 13));
+
+	/* Ensure that the interrupt is ordered w.r.t. previous stores. */
+	wmb();
+	mic_mmio_write(mw, apicicr_low,
+		MIC_X100_SBOX_BASE_ADDRESS + apic_icr_offset);
+}
+
+/**
+ * mic_x100_send_rdmasr_intr - Send an RDMASR interrupt to MIC.
+ * @mdev: pointer to mic_device instance
+ */
+static void mic_x100_send_rdmasr_intr(struct mic_device *mdev,
+			int doorbell)
+{
+	int rdmasr_offset = MIC_X100_SBOX_RDMASR0 + (doorbell << 2);
+	/* Ensure that the interrupt is ordered w.r.t. previous stores. */
+	wmb();
+	mic_mmio_write(&mdev->mmio, 0,
+		MIC_X100_SBOX_BASE_ADDRESS + rdmasr_offset);
+}
+
+/**
+ * __mic_x100_send_intr - Send interrupt to MIC.
+ * @mdev: pointer to mic_device instance
+ * @doorbell: doorbell number.
+ */
+static void mic_x100_send_intr(struct mic_device *mdev, int doorbell)
+{
+	int rdmasr_db;
+	if (doorbell < MIC_X100_NUM_SBOX_IRQ) {
+		mic_x100_send_sbox_intr(mdev, doorbell);
+	} else {
+		rdmasr_db = doorbell - MIC_X100_NUM_SBOX_IRQ +
+			MIC_X100_RDMASR_IRQ_BASE;
+		mic_x100_send_rdmasr_intr(mdev, rdmasr_db);
+	}
+}
+
+/**
+ * mic_ack_interrupt - Device specific interrupt handling.
+ * @mdev: pointer to mic_device instance
+ *
+ * Returns: bitmask of doorbell events triggered.
+ */
+static u32 mic_x100_ack_interrupt(struct mic_device *mdev)
+{
+	u32 reg = 0;
+	struct mic_mw *mw = &mdev->mmio;
+	u32 sicr0 = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_SICR0;
+
+	/* Clear pending bit array. */
+	if (MIC_A0_STEP == mdev->stepping)
+		mic_mmio_write(mw, 1, MIC_X100_SBOX_BASE_ADDRESS +
+			MIC_X100_SBOX_MSIXPBACR);
+
+	if (mdev->irq_info.num_vectors <= 1) {
+		reg = mic_mmio_read(mw, sicr0);
+
+		if (unlikely(!reg))
+			goto done;
+
+		mic_mmio_write(mw, reg, sicr0);
+	}
+
+	if (mdev->stepping >= MIC_B0_STEP)
+		mdev->intr_ops->enable_interrupts(mdev);
+done:
+	return reg;
+}
+
+/**
+ * mic_x100_hw_intr_init - Initialize h/w specific interrupt
+ * information.
+ * @mdev: pointer to mic_device instance
+ */
+static void mic_x100_hw_intr_init(struct mic_device *mdev)
+{
+	mdev->intr_info = (struct mic_intr_info *) mic_x100_intr_init;
+}
+
+/**
+ * mic_x100_read_msi_to_src_map - read from the MSI mapping registers
+ * @mdev: pointer to mic_device instance
+ * @idx: index to the mapping register, 0 based
+ *
+ * This function allows reading of the 32bit MSI mapping register.
+ *
+ * RETURNS: The value in the register.
+ */
+static u32
+mic_x100_read_msi_to_src_map(struct mic_device *mdev, int idx)
+{
+	return mic_mmio_read(&mdev->mmio,
+		MIC_X100_SBOX_BASE_ADDRESS +
+		MIC_X100_SBOX_MXAR0 + idx * 4);
+}
+
+/**
+ * mic_x100_program_msi_to_src_map - program the MSI mapping registers
+ * @mdev: pointer to mic_device instance
+ * @idx: index to the mapping register, 0 based
+ * @offset: The bit offset in the register that needs to be updated.
+ * @set: boolean specifying if the bit in the specified offset needs
+ * to be set or cleared.
+ *
+ * RETURNS: None.
+ */
+static void
+mic_x100_program_msi_to_src_map(struct mic_device *mdev,
+			int idx, int offset, bool set)
+{
+	unsigned long reg;
+	struct mic_mw *mw = &mdev->mmio;
+	u32 mxar = MIC_X100_SBOX_BASE_ADDRESS +
+		MIC_X100_SBOX_MXAR0 + idx * 4;
+
+	reg = mic_mmio_read(mw, mxar);
+	if (set)
+		__set_bit(offset, &reg);
+	else
+		__clear_bit(offset, &reg);
+	mic_mmio_write(mw, reg, mxar);
+}
+
+/**
+ * mic_x100_smpt_set - Update an SMPT entry with a DMA address.
+ * @mdev: pointer to mic_device instance
+ *
+ * RETURNS: none.
+ */
+static void
+mic_x100_smpt_set(struct mic_device *mdev, dma_addr_t dma_addr, u8 index)
+{
+#define SNOOP_ON	(0 << 0)
+#define SNOOP_OFF	(1 << 0)
+/*
+ * Sbox Smpt Reg Bits:
+ * Bits	31:2	Host address
+ * Bits	1	RSVD
+ * Bits	0	No snoop
+ */
+#define BUILD_SMPT(NO_SNOOP, HOST_ADDR)  \
+	(u32)(((HOST_ADDR) << 2) | ((NO_SNOOP) & 0x01))
+
+	uint32_t smpt_reg_val = BUILD_SMPT(SNOOP_ON,
+			dma_addr >> mdev->smpt->info.page_shift);
+	mic_mmio_write(&mdev->mmio, smpt_reg_val,
+		MIC_X100_SBOX_BASE_ADDRESS +
+		MIC_X100_SBOX_SMPT00 + (4 * index));
+}
+
+/**
+ * mic_x100_smpt_hw_init - Initialize SMPT X100 specific fields.
+ * @mdev: pointer to mic_device instance
+ *
+ * RETURNS: none.
+ */
+static void mic_x100_smpt_hw_init(struct mic_device *mdev)
+{
+	struct mic_smpt_hw_info *info = &mdev->smpt->info;
+
+	info->num_reg = 32;
+	info->page_shift = 34;
+	info->page_size = (1ULL << info->page_shift);
+	info->base = 0x8000000000ULL;
+}
+
+struct mic_smpt_ops mic_x100_smpt_ops = {
+	.init = mic_x100_smpt_hw_init,
+	.set = mic_x100_smpt_set,
+};
+
 struct mic_hw_ops mic_x100_ops = {
 	.aper_bar = MIC_X100_APER_BAR,
 	.mmio_bar = MIC_X100_MMIO_BAR,
 	.read_spad = mic_x100_read_spad,
 	.write_spad = mic_x100_write_spad,
+	.send_intr = mic_x100_send_intr,
+	.ack_interrupt = mic_x100_ack_interrupt,
+};
+
+struct mic_hw_intr_ops mic_x100_intr_ops = {
+	.intr_init = mic_x100_hw_intr_init,
+	.enable_interrupts = mic_x100_enable_interrupts,
+	.disable_interrupts = mic_x100_disable_interrupts,
+	.program_msi_to_src_map = mic_x100_program_msi_to_src_map,
+	.read_msi_to_src_map = mic_x100_read_msi_to_src_map,
 };
diff --git a/drivers/misc/mic/host/mic_x100.h b/drivers/misc/mic/host/mic_x100.h
index 1f4e6305dcf5..642cae9a0041 100644
--- a/drivers/misc/mic/host/mic_x100.h
+++ b/drivers/misc/mic/host/mic_x100.h
@@ -42,6 +42,45 @@
 
 #define MIC_X100_SBOX_BASE_ADDRESS 0x00010000
 #define MIC_X100_SBOX_SPAD0 0x0000AB20
+#define MIC_X100_SBOX_SICR0_DBR(x) ((x) & 0xf)
+#define MIC_X100_SBOX_SICR0_DMA(x) (((x) >> 8) & 0xff)
+#define MIC_X100_SBOX_SICE0_DBR(x) ((x) & 0xf)
+#define MIC_X100_SBOX_DBR_BITS(x) ((x) & 0xf)
+#define MIC_X100_SBOX_SICE0_DMA(x) (((x) >> 8) & 0xff)
+#define MIC_X100_SBOX_DMA_BITS(x) (((x) & 0xff) << 8)
+
+#define MIC_X100_SBOX_APICICR0 0x0000A9D0
+#define MIC_X100_SBOX_SICR0 0x00009004
+#define MIC_X100_SBOX_SICE0 0x0000900C
+#define MIC_X100_SBOX_SICC0 0x00009010
+#define MIC_X100_SBOX_SIAC0 0x00009014
+#define MIC_X100_SBOX_MSIXPBACR 0x00009084
+#define MIC_X100_SBOX_MXAR0 0x00009044
+#define MIC_X100_SBOX_SMPT00 0x00003100
+#define MIC_X100_SBOX_RDMASR0 0x0000B180
+
+#define MIC_X100_DOORBELL_IDX_START 0
+#define MIC_X100_NUM_DOORBELL 4
+#define MIC_X100_DMA_IDX_START 8
+#define MIC_X100_NUM_DMA 8
+#define MIC_X100_ERR_IDX_START 30
+#define MIC_X100_NUM_ERR 1
+
+#define MIC_X100_NUM_SBOX_IRQ 8
+#define MIC_X100_NUM_RDMASR_IRQ 8
+#define MIC_X100_RDMASR_IRQ_BASE 17
+
+static const u16 mic_x100_intr_init[] = {
+		MIC_X100_DOORBELL_IDX_START,
+		MIC_X100_DMA_IDX_START,
+		MIC_X100_ERR_IDX_START,
+		MIC_X100_NUM_DOORBELL,
+		MIC_X100_NUM_DMA,
+		MIC_X100_NUM_ERR,
+};
+
 extern struct mic_hw_ops mic_x100_ops;
+extern struct mic_smpt_ops mic_x100_smpt_ops;
+extern struct mic_hw_intr_ops mic_x100_intr_ops;
 
 #endif
-- 
cgit 


From 3a6a9201897c6482573ad07ee880574147761006 Mon Sep 17 00:00:00 2001
From: Sudeep Dutt <sudeep.dutt@intel.com>
Date: Thu, 5 Sep 2013 16:41:55 -0700
Subject: Intel MIC Host Driver, card OS state management.

This patch enables the following features:
a) Boots and shuts down the card via sysfs entries.
b) Allocates and maps a device page for communication with the
   card driver and updates the device page address via scratchpad
   registers.
c) Provides sysfs entries for shutdown status, kernel command line,
   ramdisk and log buffer information.

Co-author: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Caz Yokoyama <Caz.Yokoyama@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Harshavardhan R Kharche <harshavardhan.r.kharche@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Acked-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/ABI/testing/sysfs-class-mic.txt | 113 ++++++++
 drivers/misc/mic/common/mic_device.h          |   7 +
 drivers/misc/mic/host/Makefile                |   2 +
 drivers/misc/mic/host/mic_boot.c              | 184 +++++++++++++
 drivers/misc/mic/host/mic_debugfs.c           | 355 +++++++++++++++++++++++++
 drivers/misc/mic/host/mic_device.h            |  60 +++++
 drivers/misc/mic/host/mic_main.c              | 129 ++++++++-
 drivers/misc/mic/host/mic_sysfs.c             | 369 ++++++++++++++++++++++++++
 drivers/misc/mic/host/mic_x100.c              | 251 ++++++++++++++++++
 drivers/misc/mic/host/mic_x100.h              |  12 +
 include/uapi/linux/Kbuild                     |   1 +
 include/uapi/linux/mic_common.h               |  74 ++++++
 12 files changed, 1553 insertions(+), 4 deletions(-)
 create mode 100644 drivers/misc/mic/host/mic_boot.c
 create mode 100644 drivers/misc/mic/host/mic_debugfs.c
 create mode 100644 include/uapi/linux/mic_common.h

diff --git a/Documentation/ABI/testing/sysfs-class-mic.txt b/Documentation/ABI/testing/sysfs-class-mic.txt
index 09eb3c6d0237..82cdad3b614a 100644
--- a/Documentation/ABI/testing/sysfs-class-mic.txt
+++ b/Documentation/ABI/testing/sysfs-class-mic.txt
@@ -32,3 +32,116 @@ Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
 Description:
 		Provides information about the silicon stepping for an Intel
 		MIC device. For example - "A0" or "B0"
+
+What:		/sys/class/mic/mic(x)/state
+Date:		August 2013
+KernelVersion:	3.11
+Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
+Description:
+		When read, this entry provides the current state of an Intel
+		MIC device in the context of the card OS. Possible values that
+		will be read are:
+		"offline" - The MIC device is ready to boot the card OS.
+		"online" - The MIC device has initiated booting a card OS.
+		"shutting_down" - The card OS is shutting down.
+		"reset_failed" - The MIC device has failed to reset.
+
+		When written, this sysfs entry triggers different state change
+		operations depending upon the current state of the card OS.
+		Acceptable values are:
+		"boot" - Boot the card OS image specified by the combination
+			 of firmware, ramdisk, cmdline and bootmode
+			sysfs entries.
+		"reset" - Initiates device reset.
+		"shutdown" - Initiates card OS shutdown.
+
+What:		/sys/class/mic/mic(x)/shutdown_status
+Date:		August 2013
+KernelVersion:	3.11
+Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
+Description:
+		An Intel MIC device runs a Linux OS during its operation. This
+		OS can shutdown because of various reasons. When read, this
+		entry provides the status on why the card OS was shutdown.
+		Possible values are:
+		"nop" -  shutdown status is not applicable, when the card OS is
+			"online"
+		"crashed" - Shutdown because of a HW or SW crash.
+		"halted" - Shutdown because of a halt command.
+		"poweroff" - Shutdown because of a poweroff command.
+		"restart" - Shutdown because of a restart command.
+
+What:		/sys/class/mic/mic(x)/cmdline
+Date:		August 2013
+KernelVersion:	3.11
+Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
+Description:
+		An Intel MIC device runs a Linux OS during its operation. Before
+		booting this card OS, it is possible to pass kernel command line
+		options to configure various features in it, similar to
+		self-bootable machines. When read, this entry provides
+		information about the current kernel command line options set to
+		boot the card OS. This entry can be written to change the
+		existing kernel command line options. Typically, the user would
+		want to read the current command line options, append new ones
+		or modify existing ones and then write the whole kernel command
+		line back to this entry.
+
+What:		/sys/class/mic/mic(x)/firmware
+Date:		August 2013
+KernelVersion:	3.11
+Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
+Description:
+		When read, this sysfs entry provides the path name under
+		/lib/firmware/ where the firmware image to be booted on the
+		card can be found. The entry can be written to change the
+		firmware image location under /lib/firmware/.
+
+What:		/sys/class/mic/mic(x)/ramdisk
+Date:		August 2013
+KernelVersion:	3.11
+Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
+Description:
+		When read, this sysfs entry provides the path name under
+		/lib/firmware/ where the ramdisk image to be used during card
+		OS boot can be found. The entry can be written to change
+		the ramdisk image location under /lib/firmware/.
+
+What:		/sys/class/mic/mic(x)/bootmode
+Date:		August 2013
+KernelVersion:	3.11
+Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
+Description:
+		When read, this sysfs entry provides the current bootmode for
+		the card. This sysfs entry can be written with the following
+		valid strings:
+		a) linux - Boot a Linux image.
+		b) elf - Boot an elf image for flash updates.
+
+What:		/sys/class/mic/mic(x)/log_buf_addr
+Date:		August 2013
+KernelVersion:	3.11
+Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
+Description:
+		An Intel MIC device runs a Linux OS during its operation. For
+		debugging purpose and early kernel boot messages, the user can
+		access the card OS log buffer via debugfs. When read, this entry
+		provides the kernel virtual address of the buffer where the card
+		OS log buffer can be read. This entry is written by the host
+		configuration daemon to set the log buffer address. The correct
+		log buffer address to be written can be found in the System.map
+		file of the card OS.
+
+What:		/sys/class/mic/mic(x)/log_buf_len
+Date:		August 2013
+KernelVersion:	3.11
+Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
+Description:
+		An Intel MIC device runs a Linux OS during its operation. For
+		debugging purpose and early kernel boot messages, the user can
+		access the card OS log buffer via debugfs. When read, this entry
+		provides the kernel virtual address where the card OS log buffer
+		length can be read. This entry is written by host configuration
+		daemon to set the log buffer length address. The correct log
+		buffer length address to be written can be found in the
+		System.map file of the card OS.
diff --git a/drivers/misc/mic/common/mic_device.h b/drivers/misc/mic/common/mic_device.h
index f02262e1c9d3..6440e9d58d3a 100644
--- a/drivers/misc/mic/common/mic_device.h
+++ b/drivers/misc/mic/common/mic_device.h
@@ -34,4 +34,11 @@ struct mic_mw {
 	resource_size_t len;
 };
 
+/*
+ * Scratch pad register offsets used by the host to communicate
+ * device page DMA address to the card.
+ */
+#define MIC_DPLO_SPAD 14
+#define MIC_DPHI_SPAD 15
+
 #endif
diff --git a/drivers/misc/mic/host/Makefile b/drivers/misc/mic/host/Makefile
index 6ff5550f10ac..a375dd32c3e2 100644
--- a/drivers/misc/mic/host/Makefile
+++ b/drivers/misc/mic/host/Makefile
@@ -8,3 +8,5 @@ mic_host-objs += mic_x100.o
 mic_host-objs += mic_sysfs.o
 mic_host-objs += mic_smpt.o
 mic_host-objs += mic_intr.o
+mic_host-objs += mic_boot.o
+mic_host-objs += mic_debugfs.o
diff --git a/drivers/misc/mic/host/mic_boot.c b/drivers/misc/mic/host/mic_boot.c
new file mode 100644
index 000000000000..936fc58084f3
--- /dev/null
+++ b/drivers/misc/mic/host/mic_boot.c
@@ -0,0 +1,184 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC Host driver.
+ *
+ */
+#include <linux/delay.h>
+#include <linux/firmware.h>
+#include <linux/interrupt.h>
+
+#include <linux/mic_common.h>
+#include "../common/mic_device.h"
+#include "mic_device.h"
+#include "mic_smpt.h"
+
+/**
+ * mic_reset - Reset the MIC device.
+ * @mdev: pointer to mic_device instance
+ */
+static void mic_reset(struct mic_device *mdev)
+{
+	int i;
+
+#define MIC_RESET_TO (45)
+
+	mdev->ops->reset_fw_ready(mdev);
+	mdev->ops->reset(mdev);
+
+	for (i = 0; i < MIC_RESET_TO; i++) {
+		if (mdev->ops->is_fw_ready(mdev))
+			return;
+		/*
+		 * Resets typically take 10s of seconds to complete.
+		 * Since an MMIO read is required to check if the
+		 * firmware is ready or not, a 1 second delay works nicely.
+		 */
+		msleep(1000);
+	}
+	mic_set_state(mdev, MIC_RESET_FAILED);
+}
+
+/* Initialize the MIC bootparams */
+void mic_bootparam_init(struct mic_device *mdev)
+{
+	struct mic_bootparam *bootparam = mdev->dp;
+
+	bootparam->magic = MIC_MAGIC;
+	bootparam->c2h_shutdown_db = mdev->shutdown_db;
+	bootparam->h2c_shutdown_db = -1;
+	bootparam->h2c_config_db = -1;
+	bootparam->shutdown_status = 0;
+	bootparam->shutdown_card = 0;
+}
+
+/**
+ * mic_start - Start the MIC.
+ * @mdev: pointer to mic_device instance
+ * @buf: buffer containing boot string including firmware/ramdisk path.
+ *
+ * This function prepares an MIC for boot and initiates boot.
+ * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
+ */
+int mic_start(struct mic_device *mdev, const char *buf)
+{
+	int rc;
+	mutex_lock(&mdev->mic_mutex);
+retry:
+	if (MIC_OFFLINE != mdev->state) {
+		rc = -EINVAL;
+		goto unlock_ret;
+	}
+	if (!mdev->ops->is_fw_ready(mdev)) {
+		mic_reset(mdev);
+		/*
+		 * The state will either be MIC_OFFLINE if the reset succeeded
+		 * or MIC_RESET_FAILED if the firmware reset failed.
+		 */
+		goto retry;
+	}
+	rc = mdev->ops->load_mic_fw(mdev, buf);
+	if (rc)
+		goto unlock_ret;
+	mic_smpt_restore(mdev);
+	mic_intr_restore(mdev);
+	mdev->intr_ops->enable_interrupts(mdev);
+	mdev->ops->write_spad(mdev, MIC_DPLO_SPAD, mdev->dp_dma_addr);
+	mdev->ops->write_spad(mdev, MIC_DPHI_SPAD, mdev->dp_dma_addr >> 32);
+	mdev->ops->send_firmware_intr(mdev);
+	mic_set_state(mdev, MIC_ONLINE);
+unlock_ret:
+	mutex_unlock(&mdev->mic_mutex);
+	return rc;
+}
+
+/**
+ * mic_stop - Prepare the MIC for reset and trigger reset.
+ * @mdev: pointer to mic_device instance
+ * @force: force a MIC to reset even if it is already offline.
+ *
+ * RETURNS: None.
+ */
+void mic_stop(struct mic_device *mdev, bool force)
+{
+	mutex_lock(&mdev->mic_mutex);
+	if (MIC_OFFLINE != mdev->state || force) {
+		mic_bootparam_init(mdev);
+		mic_reset(mdev);
+		if (MIC_RESET_FAILED == mdev->state)
+			goto unlock;
+		mic_set_shutdown_status(mdev, MIC_NOP);
+		mic_set_state(mdev, MIC_OFFLINE);
+	}
+unlock:
+	mutex_unlock(&mdev->mic_mutex);
+}
+
+/**
+ * mic_shutdown - Initiate MIC shutdown.
+ * @mdev: pointer to mic_device instance
+ *
+ * RETURNS: None.
+ */
+void mic_shutdown(struct mic_device *mdev)
+{
+	struct mic_bootparam *bootparam = mdev->dp;
+	s8 db = bootparam->h2c_shutdown_db;
+
+	mutex_lock(&mdev->mic_mutex);
+	if (MIC_ONLINE == mdev->state && db != -1) {
+		bootparam->shutdown_card = 1;
+		mdev->ops->send_intr(mdev, db);
+		mic_set_state(mdev, MIC_SHUTTING_DOWN);
+	}
+	mutex_unlock(&mdev->mic_mutex);
+}
+
+/**
+ * mic_shutdown_work - Handle shutdown interrupt from MIC.
+ * @work: The work structure.
+ *
+ * This work is scheduled whenever the host has received a shutdown
+ * interrupt from the MIC.
+ */
+void mic_shutdown_work(struct work_struct *work)
+{
+	struct mic_device *mdev = container_of(work, struct mic_device,
+			shutdown_work);
+	struct mic_bootparam *bootparam = mdev->dp;
+
+	mutex_lock(&mdev->mic_mutex);
+	mic_set_shutdown_status(mdev, bootparam->shutdown_status);
+	bootparam->shutdown_status = 0;
+	if (MIC_SHUTTING_DOWN != mdev->state)
+		mic_set_state(mdev, MIC_SHUTTING_DOWN);
+	mutex_unlock(&mdev->mic_mutex);
+}
+
+/**
+ * mic_reset_trigger_work - Trigger MIC reset.
+ * @work: The work structure.
+ *
+ * This work is scheduled whenever the host wants to reset the MIC.
+ */
+void mic_reset_trigger_work(struct work_struct *work)
+{
+	struct mic_device *mdev = container_of(work, struct mic_device,
+			reset_trigger_work);
+
+	mic_stop(mdev, false);
+}
diff --git a/drivers/misc/mic/host/mic_debugfs.c b/drivers/misc/mic/host/mic_debugfs.c
new file mode 100644
index 000000000000..78541d42aaf9
--- /dev/null
+++ b/drivers/misc/mic/host/mic_debugfs.c
@@ -0,0 +1,355 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC Host driver.
+ *
+ */
+#include <linux/debugfs.h>
+#include <linux/pci.h>
+#include <linux/seq_file.h>
+
+#include <linux/mic_common.h>
+#include "../common/mic_device.h"
+#include "mic_device.h"
+#include "mic_smpt.h"
+
+/* Debugfs parent dir */
+static struct dentry *mic_dbg;
+
+/**
+ * mic_log_buf_show - Display MIC kernel log buffer.
+ *
+ * log_buf addr/len is read from System.map by user space
+ * and populated in sysfs entries.
+ */
+static int mic_log_buf_show(struct seq_file *s, void *unused)
+{
+	void __iomem *log_buf_va;
+	int __iomem *log_buf_len_va;
+	struct mic_device *mdev = s->private;
+	void *kva;
+	int size;
+	unsigned long aper_offset;
+
+	if (!mdev || !mdev->log_buf_addr || !mdev->log_buf_len)
+		goto done;
+	/*
+	 * Card kernel will never be relocated and any kernel text/data mapping
+	 * can be translated to phys address by subtracting __START_KERNEL_map.
+	 */
+	aper_offset = (unsigned long)mdev->log_buf_len - __START_KERNEL_map;
+	log_buf_len_va = mdev->aper.va + aper_offset;
+	aper_offset = (unsigned long)mdev->log_buf_addr - __START_KERNEL_map;
+	log_buf_va = mdev->aper.va + aper_offset;
+	size = ioread32(log_buf_len_va);
+
+	kva = kmalloc(size, GFP_KERNEL);
+	if (!kva)
+		goto done;
+	mutex_lock(&mdev->mic_mutex);
+	memcpy_fromio(kva, log_buf_va, size);
+	switch (mdev->state) {
+	case MIC_ONLINE:
+		/* Fall through */
+	case MIC_SHUTTING_DOWN:
+		seq_write(s, kva, size);
+		break;
+	default:
+		break;
+	}
+	mutex_unlock(&mdev->mic_mutex);
+	kfree(kva);
+done:
+	return 0;
+}
+
+static int mic_log_buf_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, mic_log_buf_show, inode->i_private);
+}
+
+static int mic_log_buf_release(struct inode *inode, struct file *file)
+{
+	return single_release(inode, file);
+}
+
+static const struct file_operations log_buf_ops = {
+	.owner   = THIS_MODULE,
+	.open    = mic_log_buf_open,
+	.read    = seq_read,
+	.llseek  = seq_lseek,
+	.release = mic_log_buf_release
+};
+
+static int mic_smpt_show(struct seq_file *s, void *pos)
+{
+	int i;
+	struct mic_device *mdev = s->private;
+	unsigned long flags;
+
+	seq_printf(s, "MIC %-2d |%-10s| %-14s %-10s\n",
+		mdev->id, "SMPT entry", "SW DMA addr", "RefCount");
+	seq_puts(s, "====================================================\n");
+
+	if (mdev->smpt) {
+		struct mic_smpt_info *smpt_info = mdev->smpt;
+		spin_lock_irqsave(&smpt_info->smpt_lock, flags);
+		for (i = 0; i < smpt_info->info.num_reg; i++) {
+			seq_printf(s, "%9s|%-10d| %-#14llx %-10lld\n",
+				" ",  i, smpt_info->entry[i].dma_addr,
+				smpt_info->entry[i].ref_count);
+		}
+		spin_unlock_irqrestore(&smpt_info->smpt_lock, flags);
+	}
+	seq_puts(s, "====================================================\n");
+	return 0;
+}
+
+static int mic_smpt_debug_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, mic_smpt_show, inode->i_private);
+}
+
+static int mic_smpt_debug_release(struct inode *inode, struct file *file)
+{
+	return single_release(inode, file);
+}
+
+static const struct file_operations smpt_file_ops = {
+	.owner   = THIS_MODULE,
+	.open    = mic_smpt_debug_open,
+	.read    = seq_read,
+	.llseek  = seq_lseek,
+	.release = mic_smpt_debug_release
+};
+
+static int mic_soft_reset_show(struct seq_file *s, void *pos)
+{
+	struct mic_device *mdev = s->private;
+
+	mic_stop(mdev, true);
+	return 0;
+}
+
+static int mic_soft_reset_debug_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, mic_soft_reset_show, inode->i_private);
+}
+
+static int mic_soft_reset_debug_release(struct inode *inode, struct file *file)
+{
+	return single_release(inode, file);
+}
+
+static const struct file_operations soft_reset_ops = {
+	.owner   = THIS_MODULE,
+	.open    = mic_soft_reset_debug_open,
+	.read    = seq_read,
+	.llseek  = seq_lseek,
+	.release = mic_soft_reset_debug_release
+};
+
+static int mic_post_code_show(struct seq_file *s, void *pos)
+{
+	struct mic_device *mdev = s->private;
+	u32 reg = mdev->ops->get_postcode(mdev);
+
+	seq_printf(s, "%c%c", reg & 0xff, (reg >> 8) & 0xff);
+	return 0;
+}
+
+static int mic_post_code_debug_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, mic_post_code_show, inode->i_private);
+}
+
+static int mic_post_code_debug_release(struct inode *inode, struct file *file)
+{
+	return single_release(inode, file);
+}
+
+static const struct file_operations post_code_ops = {
+	.owner   = THIS_MODULE,
+	.open    = mic_post_code_debug_open,
+	.read    = seq_read,
+	.llseek  = seq_lseek,
+	.release = mic_post_code_debug_release
+};
+
+static int mic_dp_show(struct seq_file *s, void *pos)
+{
+	struct mic_device *mdev = s->private;
+	struct mic_bootparam *bootparam = mdev->dp;
+
+	seq_printf(s, "Bootparam: magic 0x%x\n",
+		bootparam->magic);
+	seq_printf(s, "Bootparam: h2c_shutdown_db %d\n",
+		bootparam->h2c_shutdown_db);
+	seq_printf(s, "Bootparam: h2c_config_db %d\n",
+		bootparam->h2c_config_db);
+	seq_printf(s, "Bootparam: c2h_shutdown_db %d\n",
+		bootparam->c2h_shutdown_db);
+	seq_printf(s, "Bootparam: shutdown_status %d\n",
+		bootparam->shutdown_status);
+	seq_printf(s, "Bootparam: shutdown_card %d\n",
+		bootparam->shutdown_card);
+
+	return 0;
+}
+
+static int mic_dp_debug_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, mic_dp_show, inode->i_private);
+}
+
+static int mic_dp_debug_release(struct inode *inode, struct file *file)
+{
+	return single_release(inode, file);
+}
+
+static const struct file_operations dp_ops = {
+	.owner   = THIS_MODULE,
+	.open    = mic_dp_debug_open,
+	.read    = seq_read,
+	.llseek  = seq_lseek,
+	.release = mic_dp_debug_release
+};
+
+static int mic_msi_irq_info_show(struct seq_file *s, void *pos)
+{
+	struct mic_device *mdev  = s->private;
+	int reg;
+	int i, j;
+	u16 entry;
+	u16 vector;
+	struct pci_dev *pdev = container_of(mdev->sdev->parent,
+		struct pci_dev, dev);
+
+	if (pci_dev_msi_enabled(pdev)) {
+		for (i = 0; i < mdev->irq_info.num_vectors; i++) {
+			if (pdev->msix_enabled) {
+				entry = mdev->irq_info.msix_entries[i].entry;
+				vector = mdev->irq_info.msix_entries[i].vector;
+			} else {
+				entry = 0;
+				vector = pdev->irq;
+			}
+
+			reg = mdev->intr_ops->read_msi_to_src_map(mdev, entry);
+
+			seq_printf(s, "%s %-10d %s %-10d MXAR[%d]: %08X\n",
+				"IRQ:", vector, "Entry:", entry, i, reg);
+
+			seq_printf(s, "%-10s", "offset:");
+			for (j = (MIC_NUM_OFFSETS - 1); j >= 0; j--)
+				seq_printf(s, "%4d ", j);
+			seq_puts(s, "\n");
+
+
+			seq_printf(s, "%-10s", "count:");
+			for (j = (MIC_NUM_OFFSETS - 1); j >= 0; j--)
+				seq_printf(s, "%4d ",
+				(mdev->irq_info.mic_msi_map[i] & BIT(j)) ?
+					1 : 0);
+			seq_puts(s, "\n\n");
+		}
+	} else {
+		seq_puts(s, "MSI/MSIx interrupts not enabled\n");
+	}
+
+	return 0;
+
+}
+
+static int mic_msi_irq_info_debug_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, mic_msi_irq_info_show, inode->i_private);
+}
+
+static int
+mic_msi_irq_info_debug_release(struct inode *inode, struct file *file)
+{
+	return single_release(inode, file);
+}
+
+static const struct file_operations msi_irq_info_ops = {
+	.owner   = THIS_MODULE,
+	.open    = mic_msi_irq_info_debug_open,
+	.read    = seq_read,
+	.llseek  = seq_lseek,
+	.release = mic_msi_irq_info_debug_release
+};
+
+/**
+ * mic_create_debug_dir - Initialize MIC debugfs entries.
+ */
+void mic_create_debug_dir(struct mic_device *mdev)
+{
+	if (!mic_dbg)
+		return;
+
+	mdev->dbg_dir = debugfs_create_dir(dev_name(mdev->sdev), mic_dbg);
+	if (!mdev->dbg_dir)
+		return;
+
+	debugfs_create_file("log_buf", 0444, mdev->dbg_dir,
+		mdev, &log_buf_ops);
+
+	debugfs_create_file("smpt", 0444, mdev->dbg_dir,
+		mdev, &smpt_file_ops);
+
+	debugfs_create_file("soft_reset", 0444, mdev->dbg_dir,
+		mdev, &soft_reset_ops);
+
+	debugfs_create_file("post_code", 0444, mdev->dbg_dir,
+		mdev, &post_code_ops);
+
+	debugfs_create_file("dp", 0444, mdev->dbg_dir,
+		mdev, &dp_ops);
+
+	debugfs_create_file("msi_irq_info", 0444, mdev->dbg_dir,
+		mdev, &msi_irq_info_ops);
+}
+
+/**
+ * mic_delete_debug_dir - Uninitialize MIC debugfs entries.
+ */
+void mic_delete_debug_dir(struct mic_device *mdev)
+{
+	if (!mdev->dbg_dir)
+		return;
+
+	debugfs_remove_recursive(mdev->dbg_dir);
+}
+
+/**
+ * mic_init_debugfs - Initialize global debugfs entry.
+ */
+void __init mic_init_debugfs(void)
+{
+	mic_dbg = debugfs_create_dir(KBUILD_MODNAME, NULL);
+	if (!mic_dbg)
+		pr_err("can't create debugfs dir\n");
+}
+
+/**
+ * mic_exit_debugfs - Uninitialize global debugfs entry
+ */
+void mic_exit_debugfs(void)
+{
+	debugfs_remove(mic_dbg);
+}
diff --git a/drivers/misc/mic/host/mic_device.h b/drivers/misc/mic/host/mic_device.h
index dd34b6532a01..50b8b88d70d3 100644
--- a/drivers/misc/mic/host/mic_device.h
+++ b/drivers/misc/mic/host/mic_device.h
@@ -63,6 +63,23 @@ enum mic_stepping {
  * @smpt: MIC SMPT information.
  * @intr_info: H/W specific interrupt information.
  * @irq_info: The OS specific irq information
+ * @dbg_dir: debugfs directory of this MIC device.
+ * @cmdline: Kernel command line.
+ * @firmware: Firmware file name.
+ * @ramdisk: Ramdisk file name.
+ * @bootmode: Boot mode i.e. "linux" or "elf" for flash updates.
+ * @bootaddr: MIC boot address.
+ * @reset_trigger_work: Work for triggering reset requests.
+ * @shutdown_work: Work for handling shutdown interrupts.
+ * @state: MIC state.
+ * @shutdown_status: MIC status reported by card for shutdown/crashes.
+ * @state_sysfs: Sysfs dirent for notifying ring 3 about MIC state changes.
+ * @log_buf_addr: Log buffer address for MIC.
+ * @log_buf_len: Log buffer length address for MIC.
+ * @dp: virtio device page
+ * @dp_dma_addr: virtio device page DMA address.
+ * @shutdown_db: shutdown doorbell.
+ * @shutdown_cookie: shutdown cookie.
  */
 struct mic_device {
 	struct mic_mw mmio;
@@ -79,6 +96,23 @@ struct mic_device {
 	struct mic_smpt_info *smpt;
 	struct mic_intr_info *intr_info;
 	struct mic_irq_info irq_info;
+	struct dentry *dbg_dir;
+	char *cmdline;
+	char *firmware;
+	char *ramdisk;
+	char *bootmode;
+	u32 bootaddr;
+	struct work_struct reset_trigger_work;
+	struct work_struct shutdown_work;
+	u8 state;
+	u8 shutdown_status;
+	struct sysfs_dirent *state_sysfs;
+	void *log_buf_addr;
+	int *log_buf_len;
+	void *dp;
+	dma_addr_t dp_dma_addr;
+	int shutdown_db;
+	struct mic_irq *shutdown_cookie;
 };
 
 /**
@@ -90,6 +124,13 @@ struct mic_device {
  * @send_intr: Send an interrupt for a particular doorbell on the card.
  * @ack_interrupt: Hardware specific operations to ack the h/w on
  * receipt of an interrupt.
+ * @reset: Reset the remote processor.
+ * @reset_fw_ready: Reset firmware ready field.
+ * @is_fw_ready: Check if firmware is ready for OS download.
+ * @send_firmware_intr: Send an interrupt to the card firmware.
+ * @load_mic_fw: Load firmware segments required to boot the card
+ * into card memory. This includes the kernel, command line, ramdisk etc.
+ * @get_postcode: Get post code status from firmware.
  */
 struct mic_hw_ops {
 	u8 aper_bar;
@@ -98,6 +139,12 @@ struct mic_hw_ops {
 	void (*write_spad)(struct mic_device *mdev, unsigned int idx, u32 val);
 	void (*send_intr)(struct mic_device *mdev, int doorbell);
 	u32 (*ack_interrupt)(struct mic_device *mdev);
+	void (*reset)(struct mic_device *mdev);
+	void (*reset_fw_ready)(struct mic_device *mdev);
+	bool (*is_fw_ready)(struct mic_device *mdev);
+	void (*send_firmware_intr)(struct mic_device *mdev);
+	int (*load_mic_fw)(struct mic_device *mdev, const char *buf);
+	u32 (*get_postcode)(struct mic_device *mdev);
 };
 
 /**
@@ -127,4 +174,17 @@ mic_mmio_write(struct mic_mw *mw, u32 val, u32 offset)
 }
 
 void mic_sysfs_init(struct mic_device *mdev);
+int mic_start(struct mic_device *mdev, const char *buf);
+void mic_stop(struct mic_device *mdev, bool force);
+void mic_shutdown(struct mic_device *mdev);
+void mic_reset_delayed_work(struct work_struct *work);
+void mic_reset_trigger_work(struct work_struct *work);
+void mic_shutdown_work(struct work_struct *work);
+void mic_bootparam_init(struct mic_device *mdev);
+void mic_set_state(struct mic_device *mdev, u8 state);
+void mic_set_shutdown_status(struct mic_device *mdev, u8 status);
+void mic_create_debug_dir(struct mic_device *dev);
+void mic_delete_debug_dir(struct mic_device *dev);
+void __init mic_init_debugfs(void);
+void mic_exit_debugfs(void);
 #endif
diff --git a/drivers/misc/mic/host/mic_main.c b/drivers/misc/mic/host/mic_main.c
index 332a15e4215b..998a20ab7e96 100644
--- a/drivers/misc/mic/host/mic_main.c
+++ b/drivers/misc/mic/host/mic_main.c
@@ -26,6 +26,7 @@
 #include <linux/module.h>
 #include <linux/pci.h>
 
+#include <linux/mic_common.h>
 #include "../common/mic_device.h"
 #include "mic_device.h"
 #include "mic_x100.h"
@@ -63,6 +64,60 @@ static struct class *g_mic_class;
 /* Base device node number for MIC devices */
 static dev_t g_mic_devno;
 
+/* Initialize the device page */
+static int mic_dp_init(struct mic_device *mdev)
+{
+	mdev->dp = kzalloc(MIC_DP_SIZE, GFP_KERNEL);
+	if (!mdev->dp) {
+		dev_err(mdev->sdev->parent, "%s %d err %d\n",
+			__func__, __LINE__, -ENOMEM);
+		return -ENOMEM;
+	}
+
+	mdev->dp_dma_addr = mic_map_single(mdev,
+		mdev->dp, MIC_DP_SIZE);
+	if (mic_map_error(mdev->dp_dma_addr)) {
+		kfree(mdev->dp);
+		dev_err(mdev->sdev->parent, "%s %d err %d\n",
+			__func__, __LINE__, -ENOMEM);
+		return -ENOMEM;
+	}
+	mdev->ops->write_spad(mdev, MIC_DPLO_SPAD, mdev->dp_dma_addr);
+	mdev->ops->write_spad(mdev, MIC_DPHI_SPAD, mdev->dp_dma_addr >> 32);
+	return 0;
+}
+
+/* Uninitialize the device page */
+static void mic_dp_uninit(struct mic_device *mdev)
+{
+	mic_unmap_single(mdev, mdev->dp_dma_addr, MIC_DP_SIZE);
+	kfree(mdev->dp);
+}
+
+/**
+ * mic_shutdown_db - Shutdown doorbell interrupt handler.
+ */
+static irqreturn_t mic_shutdown_db(int irq, void *data)
+{
+	struct mic_device *mdev = data;
+	struct mic_bootparam *bootparam = mdev->dp;
+
+	mdev->ops->ack_interrupt(mdev);
+
+	switch (bootparam->shutdown_status) {
+	case MIC_HALTED:
+	case MIC_POWER_OFF:
+	case MIC_RESTART:
+		/* Fall through */
+	case MIC_CRASHED:
+		schedule_work(&mdev->shutdown_work);
+		break;
+	default:
+		break;
+	};
+	return IRQ_HANDLED;
+}
+
 /**
  * mic_ops_init: Initialize HW specific operation tables.
  *
@@ -136,6 +191,26 @@ mic_device_init(struct mic_device *mdev, struct pci_dev *pdev)
 	mic_sysfs_init(mdev);
 	mutex_init(&mdev->mic_mutex);
 	mdev->irq_info.next_avail_src = 0;
+	INIT_WORK(&mdev->reset_trigger_work, mic_reset_trigger_work);
+	INIT_WORK(&mdev->shutdown_work, mic_shutdown_work);
+}
+
+/**
+ * mic_device_uninit - Frees resources allocated during mic_device_init(..)
+ *
+ * @mdev: pointer to mic_device instance
+ *
+ * returns none
+ */
+static void mic_device_uninit(struct mic_device *mdev)
+{
+	/* The cmdline sysfs entry might have allocated cmdline */
+	kfree(mdev->cmdline);
+	kfree(mdev->firmware);
+	kfree(mdev->ramdisk);
+	kfree(mdev->bootmode);
+	flush_work(&mdev->reset_trigger_work);
+	flush_work(&mdev->shutdown_work);
 }
 
 /**
@@ -170,7 +245,7 @@ static int mic_probe(struct pci_dev *pdev,
 	rc = pci_enable_device(pdev);
 	if (rc) {
 		dev_err(&pdev->dev, "failed to enable pci device.\n");
-		goto ida_remove;
+		goto uninit_device;
 	}
 
 	pci_set_master(pdev);
@@ -228,7 +303,40 @@ static int mic_probe(struct pci_dev *pdev,
 			"device_create_with_groups failed rc %d\n", rc);
 		goto smpt_uninit;
 	}
+	mdev->state_sysfs = sysfs_get_dirent(mdev->sdev->kobj.sd,
+		NULL, "state");
+	if (!mdev->state_sysfs) {
+		rc = -ENODEV;
+		dev_err(&pdev->dev, "sysfs_get_dirent failed rc %d\n", rc);
+		goto destroy_device;
+	}
+
+	rc = mic_dp_init(mdev);
+	if (rc) {
+		dev_err(&pdev->dev, "mic_dp_init failed rc %d\n", rc);
+		goto sysfs_put;
+	}
+	mutex_lock(&mdev->mic_mutex);
+
+	mdev->shutdown_db = mic_next_db(mdev);
+	mdev->shutdown_cookie = mic_request_irq(mdev, mic_shutdown_db,
+		"shutdown-interrupt", mdev, mdev->shutdown_db, MIC_INTR_DB);
+	if (IS_ERR(mdev->shutdown_cookie)) {
+		rc = PTR_ERR(mdev->shutdown_cookie);
+		mutex_unlock(&mdev->mic_mutex);
+		goto dp_uninit;
+	}
+	mutex_unlock(&mdev->mic_mutex);
+	mic_bootparam_init(mdev);
+
+	mic_create_debug_dir(mdev);
 	return 0;
+dp_uninit:
+	mic_dp_uninit(mdev);
+sysfs_put:
+	sysfs_put(mdev->state_sysfs);
+destroy_device:
+	device_destroy(g_mic_class, MKDEV(MAJOR(g_mic_devno), mdev->id));
 smpt_uninit:
 	mic_smpt_uninit(mdev);
 free_interrupts:
@@ -241,7 +349,8 @@ release_regions:
 	pci_release_regions(pdev);
 disable_device:
 	pci_disable_device(pdev);
-ida_remove:
+uninit_device:
+	mic_device_uninit(mdev);
 	ida_simple_remove(&g_mic_ida, mdev->id);
 ida_fail:
 	kfree(mdev);
@@ -265,11 +374,20 @@ static void mic_remove(struct pci_dev *pdev)
 	if (!mdev)
 		return;
 
+	mic_stop(mdev, false);
+	mic_delete_debug_dir(mdev);
+	mutex_lock(&mdev->mic_mutex);
+	mic_free_irq(mdev, mdev->shutdown_cookie, mdev);
+	mutex_unlock(&mdev->mic_mutex);
+	flush_work(&mdev->shutdown_work);
+	mic_dp_uninit(mdev);
+	sysfs_put(mdev->state_sysfs);
 	device_destroy(g_mic_class, MKDEV(MAJOR(g_mic_devno), mdev->id));
 	mic_smpt_uninit(mdev);
 	mic_free_interrupts(mdev, pdev);
 	iounmap(mdev->mmio.va);
 	iounmap(mdev->aper.va);
+	mic_device_uninit(mdev);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
 	ida_simple_remove(&g_mic_ida, mdev->id);
@@ -300,14 +418,16 @@ static int __init mic_init(void)
 		goto cleanup_chrdev;
 	}
 
+	mic_init_debugfs();
 	ida_init(&g_mic_ida);
 	ret = pci_register_driver(&mic_driver);
 	if (ret) {
 		pr_err("pci_register_driver failed ret %d\n", ret);
-		goto class_destroy;
+		goto cleanup_debugfs;
 	}
 	return ret;
-class_destroy:
+cleanup_debugfs:
+	mic_exit_debugfs();
 	class_destroy(g_mic_class);
 cleanup_chrdev:
 	unregister_chrdev_region(g_mic_devno, MIC_MAX_NUM_DEVS);
@@ -319,6 +439,7 @@ static void __exit mic_exit(void)
 {
 	pci_unregister_driver(&mic_driver);
 	ida_destroy(&g_mic_ida);
+	mic_exit_debugfs();
 	class_destroy(g_mic_class);
 	unregister_chrdev_region(g_mic_devno, MIC_MAX_NUM_DEVS);
 }
diff --git a/drivers/misc/mic/host/mic_sysfs.c b/drivers/misc/mic/host/mic_sysfs.c
index 972c18255263..aaf849945111 100644
--- a/drivers/misc/mic/host/mic_sysfs.c
+++ b/drivers/misc/mic/host/mic_sysfs.c
@@ -20,9 +20,50 @@
  */
 #include <linux/pci.h>
 
+#include <linux/mic_common.h>
 #include "../common/mic_device.h"
 #include "mic_device.h"
 
+/*
+ * A state-to-string lookup table, for exposing a human readable state
+ * via sysfs. Always keep in sync with enum mic_states
+ */
+static const char * const mic_state_string[] = {
+	[MIC_OFFLINE] = "offline",
+	[MIC_ONLINE] = "online",
+	[MIC_SHUTTING_DOWN] = "shutting_down",
+	[MIC_RESET_FAILED] = "reset_failed",
+};
+
+/*
+ * A shutdown-status-to-string lookup table, for exposing a human
+ * readable state via sysfs. Always keep in sync with enum mic_shutdown_status
+ */
+static const char * const mic_shutdown_status_string[] = {
+	[MIC_NOP] = "nop",
+	[MIC_CRASHED] = "crashed",
+	[MIC_HALTED] = "halted",
+	[MIC_POWER_OFF] = "poweroff",
+	[MIC_RESTART] = "restart",
+};
+
+void mic_set_shutdown_status(struct mic_device *mdev, u8 shutdown_status)
+{
+	dev_dbg(mdev->sdev->parent, "Shutdown Status %s -> %s\n",
+		mic_shutdown_status_string[mdev->shutdown_status],
+		mic_shutdown_status_string[shutdown_status]);
+	mdev->shutdown_status = shutdown_status;
+}
+
+void mic_set_state(struct mic_device *mdev, u8 state)
+{
+	dev_dbg(mdev->sdev->parent, "State %s -> %s\n",
+		mic_state_string[mdev->state],
+		mic_state_string[state]);
+	mdev->state = state;
+	sysfs_notify_dirent(mdev->state_sysfs);
+}
+
 static ssize_t
 mic_show_family(struct device *dev, struct device_attribute *attr, char *buf)
 {
@@ -75,9 +116,337 @@ mic_show_stepping(struct device *dev, struct device_attribute *attr, char *buf)
 }
 static DEVICE_ATTR(stepping, S_IRUGO, mic_show_stepping, NULL);
 
+static ssize_t
+mic_show_state(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct mic_device *mdev = dev_get_drvdata(dev->parent);
+
+	if (!mdev || mdev->state >= MIC_LAST)
+		return -EINVAL;
+
+	return scnprintf(buf, PAGE_SIZE, "%s\n",
+		mic_state_string[mdev->state]);
+}
+
+static ssize_t
+mic_store_state(struct device *dev, struct device_attribute *attr,
+	const char *buf, size_t count)
+{
+	int rc = 0;
+	struct mic_device *mdev = dev_get_drvdata(dev->parent);
+	if (!mdev)
+		return -EINVAL;
+	if (sysfs_streq(buf, "boot")) {
+		rc = mic_start(mdev, buf);
+		if (rc) {
+			dev_err(mdev->sdev->parent,
+				"mic_boot failed rc %d\n", rc);
+			count = rc;
+		}
+		goto done;
+	}
+
+	if (sysfs_streq(buf, "reset")) {
+		schedule_work(&mdev->reset_trigger_work);
+		goto done;
+	}
+
+	if (sysfs_streq(buf, "shutdown")) {
+		mic_shutdown(mdev);
+		goto done;
+	}
+
+	count = -EINVAL;
+done:
+	return count;
+}
+static DEVICE_ATTR(state, S_IRUGO|S_IWUSR, mic_show_state, mic_store_state);
+
+static ssize_t mic_show_shutdown_status(struct device *dev,
+	struct device_attribute *attr, char *buf)
+{
+	struct mic_device *mdev = dev_get_drvdata(dev->parent);
+
+	if (!mdev || mdev->shutdown_status >= MIC_STATUS_LAST)
+		return -EINVAL;
+
+	return scnprintf(buf, PAGE_SIZE, "%s\n",
+		mic_shutdown_status_string[mdev->shutdown_status]);
+}
+static DEVICE_ATTR(shutdown_status, S_IRUGO|S_IWUSR,
+	mic_show_shutdown_status, NULL);
+
+static ssize_t
+mic_show_cmdline(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct mic_device *mdev = dev_get_drvdata(dev->parent);
+	char *cmdline;
+
+	if (!mdev)
+		return -EINVAL;
+
+	cmdline = mdev->cmdline;
+
+	if (cmdline)
+		return scnprintf(buf, PAGE_SIZE, "%s\n", cmdline);
+	return 0;
+}
+
+static ssize_t
+mic_store_cmdline(struct device *dev, struct device_attribute *attr,
+	const char *buf, size_t count)
+{
+	struct mic_device *mdev = dev_get_drvdata(dev->parent);
+
+	if (!mdev)
+		return -EINVAL;
+
+	mutex_lock(&mdev->mic_mutex);
+	kfree(mdev->cmdline);
+
+	mdev->cmdline = kmalloc(count + 1, GFP_KERNEL);
+	if (!mdev->cmdline) {
+		count = -ENOMEM;
+		goto unlock;
+	}
+
+	strncpy(mdev->cmdline, buf, count);
+
+	if (mdev->cmdline[count - 1] == '\n')
+		mdev->cmdline[count - 1] = '\0';
+	else
+		mdev->cmdline[count] = '\0';
+unlock:
+	mutex_unlock(&mdev->mic_mutex);
+	return count;
+}
+static DEVICE_ATTR(cmdline, S_IRUGO | S_IWUSR,
+	mic_show_cmdline, mic_store_cmdline);
+
+static ssize_t
+mic_show_firmware(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct mic_device *mdev = dev_get_drvdata(dev->parent);
+	char *firmware;
+
+	if (!mdev)
+		return -EINVAL;
+
+	firmware = mdev->firmware;
+
+	if (firmware)
+		return scnprintf(buf, PAGE_SIZE, "%s\n", firmware);
+	return 0;
+}
+
+static ssize_t
+mic_store_firmware(struct device *dev, struct device_attribute *attr,
+	const char *buf, size_t count)
+{
+	struct mic_device *mdev = dev_get_drvdata(dev->parent);
+
+	if (!mdev)
+		return -EINVAL;
+
+	mutex_lock(&mdev->mic_mutex);
+	kfree(mdev->firmware);
+
+	mdev->firmware = kmalloc(count + 1, GFP_KERNEL);
+	if (!mdev->firmware) {
+		count = -ENOMEM;
+		goto unlock;
+	}
+	strncpy(mdev->firmware, buf, count);
+
+	if (mdev->firmware[count - 1] == '\n')
+		mdev->firmware[count - 1] = '\0';
+	else
+		mdev->firmware[count] = '\0';
+unlock:
+	mutex_unlock(&mdev->mic_mutex);
+	return count;
+}
+static DEVICE_ATTR(firmware, S_IRUGO | S_IWUSR,
+	mic_show_firmware, mic_store_firmware);
+
+static ssize_t
+mic_show_ramdisk(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct mic_device *mdev = dev_get_drvdata(dev->parent);
+	char *ramdisk;
+
+	if (!mdev)
+		return -EINVAL;
+
+	ramdisk = mdev->ramdisk;
+
+	if (ramdisk)
+		return scnprintf(buf, PAGE_SIZE, "%s\n", ramdisk);
+	return 0;
+}
+
+static ssize_t
+mic_store_ramdisk(struct device *dev, struct device_attribute *attr,
+	const char *buf, size_t count)
+{
+	struct mic_device *mdev = dev_get_drvdata(dev->parent);
+
+	if (!mdev)
+		return -EINVAL;
+
+	mutex_lock(&mdev->mic_mutex);
+	kfree(mdev->ramdisk);
+
+	mdev->ramdisk = kmalloc(count + 1, GFP_KERNEL);
+	if (!mdev->ramdisk) {
+		count = -ENOMEM;
+		goto unlock;
+	}
+
+	strncpy(mdev->ramdisk, buf, count);
+
+	if (mdev->ramdisk[count - 1] == '\n')
+		mdev->ramdisk[count - 1] = '\0';
+	else
+		mdev->ramdisk[count] = '\0';
+unlock:
+	mutex_unlock(&mdev->mic_mutex);
+	return count;
+}
+static DEVICE_ATTR(ramdisk, S_IRUGO | S_IWUSR,
+	mic_show_ramdisk, mic_store_ramdisk);
+
+static ssize_t
+mic_show_bootmode(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct mic_device *mdev = dev_get_drvdata(dev->parent);
+	char *bootmode;
+
+	if (!mdev)
+		return -EINVAL;
+
+	bootmode = mdev->bootmode;
+
+	if (bootmode)
+		return scnprintf(buf, PAGE_SIZE, "%s\n", bootmode);
+	return 0;
+}
+
+static ssize_t
+mic_store_bootmode(struct device *dev, struct device_attribute *attr,
+	const char *buf, size_t count)
+{
+	struct mic_device *mdev = dev_get_drvdata(dev->parent);
+
+	if (!mdev)
+		return -EINVAL;
+
+	if (!sysfs_streq(buf, "linux") && !sysfs_streq(buf, "elf"))
+		return -EINVAL;
+
+	mutex_lock(&mdev->mic_mutex);
+	kfree(mdev->bootmode);
+
+	mdev->bootmode = kmalloc(count + 1, GFP_KERNEL);
+	if (!mdev->bootmode) {
+		count = -ENOMEM;
+		goto unlock;
+	}
+
+	strncpy(mdev->bootmode, buf, count);
+
+	if (mdev->bootmode[count - 1] == '\n')
+		mdev->bootmode[count - 1] = '\0';
+	else
+		mdev->bootmode[count] = '\0';
+unlock:
+	mutex_unlock(&mdev->mic_mutex);
+	return count;
+}
+static DEVICE_ATTR(bootmode, S_IRUGO | S_IWUSR,
+	mic_show_bootmode, mic_store_bootmode);
+
+static ssize_t
+mic_show_log_buf_addr(struct device *dev, struct device_attribute *attr,
+	char *buf)
+{
+	struct mic_device *mdev = dev_get_drvdata(dev->parent);
+
+	if (!mdev)
+		return -EINVAL;
+
+	return scnprintf(buf, PAGE_SIZE, "%p\n", mdev->log_buf_addr);
+}
+
+static ssize_t
+mic_store_log_buf_addr(struct device *dev, struct device_attribute *attr,
+	const char *buf, size_t count)
+{
+	struct mic_device *mdev = dev_get_drvdata(dev->parent);
+	int ret;
+	unsigned long addr;
+
+	if (!mdev)
+		return -EINVAL;
+
+	ret = kstrtoul(buf, 16, &addr);
+	if (ret)
+		goto exit;
+
+	mdev->log_buf_addr = (void *)addr;
+	ret = count;
+exit:
+	return ret;
+}
+static DEVICE_ATTR(log_buf_addr, S_IRUGO | S_IWUSR,
+	mic_show_log_buf_addr, mic_store_log_buf_addr);
+
+static ssize_t
+mic_show_log_buf_len(struct device *dev, struct device_attribute *attr,
+	char *buf)
+{
+	struct mic_device *mdev = dev_get_drvdata(dev->parent);
+
+	if (!mdev)
+		return -EINVAL;
+
+	return scnprintf(buf, PAGE_SIZE, "%p\n", mdev->log_buf_len);
+}
+
+static ssize_t
+mic_store_log_buf_len(struct device *dev, struct device_attribute *attr,
+	const char *buf, size_t count)
+{
+	struct mic_device *mdev = dev_get_drvdata(dev->parent);
+	int ret;
+	unsigned long addr;
+
+	if (!mdev)
+		return -EINVAL;
+
+	ret = kstrtoul(buf, 16, &addr);
+	if (ret)
+		goto exit;
+
+	mdev->log_buf_len = (int *)addr;
+	ret = count;
+exit:
+	return ret;
+}
+static DEVICE_ATTR(log_buf_len, S_IRUGO | S_IWUSR,
+	mic_show_log_buf_len, mic_store_log_buf_len);
+
 static struct attribute *mic_default_attrs[] = {
 	&dev_attr_family.attr,
 	&dev_attr_stepping.attr,
+	&dev_attr_state.attr,
+	&dev_attr_shutdown_status.attr,
+	&dev_attr_cmdline.attr,
+	&dev_attr_firmware.attr,
+	&dev_attr_ramdisk.attr,
+	&dev_attr_bootmode.attr,
+	&dev_attr_log_buf_addr.attr,
+	&dev_attr_log_buf_len.attr,
 
 	NULL
 };
diff --git a/drivers/misc/mic/host/mic_x100.c b/drivers/misc/mic/host/mic_x100.c
index b63731691c73..a12ae5c8844d 100644
--- a/drivers/misc/mic/host/mic_x100.c
+++ b/drivers/misc/mic/host/mic_x100.c
@@ -20,6 +20,9 @@
  */
 #include <linux/fs.h>
 #include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/firmware.h>
+#include <linux/delay.h>
 
 #include "../common/mic_device.h"
 #include "mic_device.h"
@@ -256,6 +259,248 @@ mic_x100_program_msi_to_src_map(struct mic_device *mdev,
 	mic_mmio_write(mw, reg, mxar);
 }
 
+/*
+ * mic_x100_reset_fw_ready - Reset Firmware ready status field.
+ * @mdev: pointer to mic_device instance
+ */
+static void mic_x100_reset_fw_ready(struct mic_device *mdev)
+{
+	mdev->ops->write_spad(mdev, MIC_X100_DOWNLOAD_INFO, 0);
+}
+
+/*
+ * mic_x100_is_fw_ready - Check if firmware is ready.
+ * @mdev: pointer to mic_device instance
+ */
+static bool mic_x100_is_fw_ready(struct mic_device *mdev)
+{
+	u32 scratch2 = mdev->ops->read_spad(mdev, MIC_X100_DOWNLOAD_INFO);
+	return MIC_X100_SPAD2_DOWNLOAD_STATUS(scratch2) ? true : false;
+}
+
+/**
+ * mic_x100_get_apic_id - Get bootstrap APIC ID.
+ * @mdev: pointer to mic_device instance
+ */
+static u32 mic_x100_get_apic_id(struct mic_device *mdev)
+{
+	u32 scratch2 = 0;
+
+	scratch2 = mdev->ops->read_spad(mdev, MIC_X100_DOWNLOAD_INFO);
+	return MIC_X100_SPAD2_APIC_ID(scratch2);
+}
+
+/**
+ * mic_x100_send_firmware_intr - Send an interrupt to the firmware on MIC.
+ * @mdev: pointer to mic_device instance
+ */
+static void mic_x100_send_firmware_intr(struct mic_device *mdev)
+{
+	u32 apicicr_low;
+	u64 apic_icr_offset = MIC_X100_SBOX_APICICR7;
+	int vector = MIC_X100_BSP_INTERRUPT_VECTOR;
+	struct mic_mw *mw = &mdev->mmio;
+
+	/*
+	 * For MIC we need to make sure we "hit"
+	 * the send_icr bit (13).
+	 */
+	apicicr_low = (vector | (1 << 13));
+
+	mic_mmio_write(mw, mic_x100_get_apic_id(mdev),
+		MIC_X100_SBOX_BASE_ADDRESS + apic_icr_offset + 4);
+
+	/* Ensure that the interrupt is ordered w.r.t. previous stores. */
+	wmb();
+	mic_mmio_write(mw, apicicr_low,
+		MIC_X100_SBOX_BASE_ADDRESS + apic_icr_offset);
+}
+
+/**
+ * mic_x100_hw_reset - Reset the MIC device.
+ * @mdev: pointer to mic_device instance
+ */
+static void mic_x100_hw_reset(struct mic_device *mdev)
+{
+	u32 reset_reg;
+	u32 rgcr = MIC_X100_SBOX_BASE_ADDRESS + MIC_X100_SBOX_RGCR;
+	struct mic_mw *mw = &mdev->mmio;
+
+	/* Ensure that the reset is ordered w.r.t. previous loads and stores */
+	mb();
+	/* Trigger reset */
+	reset_reg = mic_mmio_read(mw, rgcr);
+	reset_reg |= 0x1;
+	mic_mmio_write(mw, reset_reg, rgcr);
+	/*
+	 * It seems we really want to delay at least 1 second
+	 * after touching reset to prevent a lot of problems.
+	 */
+	msleep(1000);
+}
+
+/**
+ * mic_x100_load_command_line - Load command line to MIC.
+ * @mdev: pointer to mic_device instance
+ * @fw: the firmware image
+ *
+ * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
+ */
+static int
+mic_x100_load_command_line(struct mic_device *mdev, const struct firmware *fw)
+{
+	u32 len = 0;
+	u32 boot_mem;
+	char *buf;
+	void __iomem *cmd_line_va = mdev->aper.va + mdev->bootaddr + fw->size;
+#define CMDLINE_SIZE 2048
+
+	boot_mem = mdev->aper.len >> 20;
+	buf = kzalloc(CMDLINE_SIZE, GFP_KERNEL);
+	if (!buf) {
+		dev_err(mdev->sdev->parent,
+			"%s %d allocation failed\n", __func__, __LINE__);
+		return -ENOMEM;
+	}
+	len += snprintf(buf, CMDLINE_SIZE - len,
+		" mem=%dM", boot_mem);
+	if (mdev->cmdline)
+		snprintf(buf + len, CMDLINE_SIZE - len,
+				" %s", mdev->cmdline);
+	memcpy_toio(cmd_line_va, buf, strlen(buf) + 1);
+	kfree(buf);
+	return 0;
+}
+
+/**
+ * mic_x100_load_ramdisk - Load ramdisk to MIC.
+ * @mdev: pointer to mic_device instance
+ *
+ * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
+ */
+static int
+mic_x100_load_ramdisk(struct mic_device *mdev)
+{
+	const struct firmware *fw;
+	int rc;
+	struct boot_params __iomem *bp = mdev->aper.va + mdev->bootaddr;
+
+	rc = request_firmware(&fw,
+			mdev->ramdisk, mdev->sdev->parent);
+	if (rc < 0) {
+		dev_err(mdev->sdev->parent,
+			"ramdisk request_firmware failed: %d %s\n",
+			rc, mdev->ramdisk);
+		goto error;
+	}
+	/*
+	 * Typically the bootaddr for card OS is 64M
+	 * so copy over the ramdisk @ 128M.
+	 */
+	memcpy_toio(mdev->aper.va + (mdev->bootaddr << 1),
+		fw->data, fw->size);
+	iowrite32(cpu_to_le32(mdev->bootaddr << 1), &bp->hdr.ramdisk_image);
+	iowrite32(cpu_to_le32(fw->size), &bp->hdr.ramdisk_size);
+	release_firmware(fw);
+error:
+	return rc;
+}
+
+/**
+ * mic_x100_get_boot_addr - Get MIC boot address.
+ * @mdev: pointer to mic_device instance
+ *
+ * This function is called during firmware load to determine
+ * the address at which the OS should be downloaded in card
+ * memory i.e. GDDR.
+ * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
+ */
+static int
+mic_x100_get_boot_addr(struct mic_device *mdev)
+{
+	u32 scratch2, boot_addr;
+	int rc = 0;
+
+	scratch2 = mdev->ops->read_spad(mdev, MIC_X100_DOWNLOAD_INFO);
+	boot_addr = MIC_X100_SPAD2_DOWNLOAD_ADDR(scratch2);
+	dev_dbg(mdev->sdev->parent, "%s %d boot_addr 0x%x\n",
+		__func__, __LINE__, boot_addr);
+	if (boot_addr > (1 << 31)) {
+		dev_err(mdev->sdev->parent,
+			"incorrect bootaddr 0x%x\n",
+			boot_addr);
+		rc = -EINVAL;
+		goto error;
+	}
+	mdev->bootaddr = boot_addr;
+error:
+	return rc;
+}
+
+/**
+ * mic_x100_load_firmware - Load firmware to MIC.
+ * @mdev: pointer to mic_device instance
+ * @buf: buffer containing boot string including firmware/ramdisk path.
+ *
+ * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
+ */
+static int
+mic_x100_load_firmware(struct mic_device *mdev, const char *buf)
+{
+	int rc;
+	const struct firmware *fw;
+
+	rc = mic_x100_get_boot_addr(mdev);
+	if (rc)
+		goto error;
+	/* load OS */
+	rc = request_firmware(&fw, mdev->firmware, mdev->sdev->parent);
+	if (rc < 0) {
+		dev_err(mdev->sdev->parent,
+			"ramdisk request_firmware failed: %d %s\n",
+			rc, mdev->firmware);
+		goto error;
+	}
+	if (mdev->bootaddr > mdev->aper.len - fw->size) {
+		rc = -EINVAL;
+		dev_err(mdev->sdev->parent, "%s %d rc %d bootaddr 0x%x\n",
+			__func__, __LINE__, rc, mdev->bootaddr);
+		release_firmware(fw);
+		goto error;
+	}
+	memcpy_toio(mdev->aper.va + mdev->bootaddr, fw->data, fw->size);
+	mdev->ops->write_spad(mdev, MIC_X100_FW_SIZE, fw->size);
+	if (!strcmp(mdev->bootmode, "elf"))
+		goto done;
+	/* load command line */
+	rc = mic_x100_load_command_line(mdev, fw);
+	if (rc) {
+		dev_err(mdev->sdev->parent, "%s %d rc %d\n",
+			__func__, __LINE__, rc);
+		goto error;
+	}
+	release_firmware(fw);
+	/* load ramdisk */
+	if (mdev->ramdisk)
+		rc = mic_x100_load_ramdisk(mdev);
+error:
+	dev_dbg(mdev->sdev->parent, "%s %d rc %d\n",
+			__func__, __LINE__, rc);
+done:
+	return rc;
+}
+
+/**
+ * mic_x100_get_postcode - Get postcode status from firmware.
+ * @mdev: pointer to mic_device instance
+ *
+ * RETURNS: postcode.
+ */
+static u32 mic_x100_get_postcode(struct mic_device *mdev)
+{
+	return mic_mmio_read(&mdev->mmio, MIC_X100_POSTCODE);
+}
+
 /**
  * mic_x100_smpt_set - Update an SMPT entry with a DMA address.
  * @mdev: pointer to mic_device instance
@@ -311,6 +556,12 @@ struct mic_hw_ops mic_x100_ops = {
 	.write_spad = mic_x100_write_spad,
 	.send_intr = mic_x100_send_intr,
 	.ack_interrupt = mic_x100_ack_interrupt,
+	.reset = mic_x100_hw_reset,
+	.reset_fw_ready = mic_x100_reset_fw_ready,
+	.is_fw_ready = mic_x100_is_fw_ready,
+	.send_firmware_intr = mic_x100_send_firmware_intr,
+	.load_mic_fw = mic_x100_load_firmware,
+	.get_postcode = mic_x100_get_postcode,
 };
 
 struct mic_hw_intr_ops mic_x100_intr_ops = {
diff --git a/drivers/misc/mic/host/mic_x100.h b/drivers/misc/mic/host/mic_x100.h
index 642cae9a0041..8b7daa182e54 100644
--- a/drivers/misc/mic/host/mic_x100.h
+++ b/drivers/misc/mic/host/mic_x100.h
@@ -69,6 +69,15 @@
 #define MIC_X100_NUM_SBOX_IRQ 8
 #define MIC_X100_NUM_RDMASR_IRQ 8
 #define MIC_X100_RDMASR_IRQ_BASE 17
+#define MIC_X100_SPAD2_DOWNLOAD_STATUS(x) ((x) & 0x1)
+#define MIC_X100_SPAD2_APIC_ID(x)	(((x) >> 1) & 0x1ff)
+#define MIC_X100_SPAD2_DOWNLOAD_ADDR(x) ((x) & 0xfffff000)
+#define MIC_X100_SBOX_APICICR7 0x0000AA08
+#define MIC_X100_SBOX_RGCR 0x00004010
+#define MIC_X100_SBOX_SDBIC0 0x0000CC90
+#define MIC_X100_DOWNLOAD_INFO 2
+#define MIC_X100_FW_SIZE 5
+#define MIC_X100_POSTCODE 0x242c
 
 static const u16 mic_x100_intr_init[] = {
 		MIC_X100_DOORBELL_IDX_START,
@@ -79,6 +88,9 @@ static const u16 mic_x100_intr_init[] = {
 		MIC_X100_NUM_ERR,
 };
 
+/* Host->Card(bootstrap) Interrupt Vector */
+#define MIC_X100_BSP_INTERRUPT_VECTOR 229
+
 extern struct mic_hw_ops mic_x100_ops;
 extern struct mic_smpt_ops mic_x100_smpt_ops;
 extern struct mic_hw_intr_ops mic_x100_intr_ops;
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index 115add2515aa..d37263fbdca7 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -241,6 +241,7 @@ header-y += media.h
 header-y += mei.h
 header-y += mempolicy.h
 header-y += meye.h
+header-y += mic_common.h
 header-y += mii.h
 header-y += minix_fs.h
 header-y += mman.h
diff --git a/include/uapi/linux/mic_common.h b/include/uapi/linux/mic_common.h
new file mode 100644
index 000000000000..a9091e529183
--- /dev/null
+++ b/include/uapi/linux/mic_common.h
@@ -0,0 +1,74 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC driver.
+ *
+ */
+#ifndef __MIC_COMMON_H_
+#define __MIC_COMMON_H_
+
+#include <linux/types.h>
+
+/**
+ * struct mic_bootparam: Virtio device independent information in device page
+ *
+ * @magic: A magic value used by the card to ensure it can see the host
+ * @c2h_shutdown_db: Card to Host shutdown doorbell set by host
+ * @h2c_shutdown_db: Host to Card shutdown doorbell set by card
+ * @h2c_config_db: Host to Card Virtio config doorbell set by card
+ * @shutdown_status: Card shutdown status set by card
+ * @shutdown_card: Set to 1 by the host when a card shutdown is initiated
+ */
+struct mic_bootparam {
+	__u32 magic;
+	__s8 c2h_shutdown_db;
+	__s8 h2c_shutdown_db;
+	__s8 h2c_config_db;
+	__u8 shutdown_status;
+	__u8 shutdown_card;
+} __aligned(8);
+
+/* Device page size */
+#define MIC_DP_SIZE 4096
+
+#define MIC_MAGIC 0xc0ffee00
+
+/**
+ * enum mic_states - MIC states.
+ */
+enum mic_states {
+	MIC_OFFLINE = 0,
+	MIC_ONLINE,
+	MIC_SHUTTING_DOWN,
+	MIC_RESET_FAILED,
+	MIC_LAST
+};
+
+/**
+ * enum mic_status - MIC status reported by card after
+ * a host or card initiated shutdown or a card crash.
+ */
+enum mic_status {
+	MIC_NOP = 0,
+	MIC_CRASHED,
+	MIC_HALTED,
+	MIC_POWER_OFF,
+	MIC_RESTART,
+	MIC_STATUS_LAST
+};
+
+#endif
-- 
cgit 


From aa27badd8972adb731f05d49ab74ec63e0826935 Mon Sep 17 00:00:00 2001
From: Sudeep Dutt <sudeep.dutt@intel.com>
Date: Thu, 5 Sep 2013 16:42:06 -0700
Subject: Intel MIC Card Driver for X100 family.

This patch does the following:
a) Initializes the Intel MIC X100 platform device and driver.
b) Sets up support to handle shutdown requests from the host.
c) Maps the device page after obtaining the device page address
from the scratchpad registers updated by the host.
d) Informs the host upon a card crash by registering a panic notifier.
e) Informs the host upon a poweroff/halt event.

Co-author: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Caz Yokoyama <Caz.Yokoyama@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Harshavardhan R Kharche <harshavardhan.r.kharche@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Acked-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mic/Kconfig            |  18 +++
 drivers/misc/mic/Makefile           |   1 +
 drivers/misc/mic/card/Makefile      |  10 ++
 drivers/misc/mic/card/mic_debugfs.c | 130 ++++++++++++++++
 drivers/misc/mic/card/mic_device.c  | 299 ++++++++++++++++++++++++++++++++++++
 drivers/misc/mic/card/mic_device.h  | 133 ++++++++++++++++
 drivers/misc/mic/card/mic_x100.c    | 256 ++++++++++++++++++++++++++++++
 drivers/misc/mic/card/mic_x100.h    |  48 ++++++
 8 files changed, 895 insertions(+)
 create mode 100644 drivers/misc/mic/card/Makefile
 create mode 100644 drivers/misc/mic/card/mic_debugfs.c
 create mode 100644 drivers/misc/mic/card/mic_device.c
 create mode 100644 drivers/misc/mic/card/mic_device.h
 create mode 100644 drivers/misc/mic/card/mic_x100.c
 create mode 100644 drivers/misc/mic/card/mic_x100.h

diff --git a/drivers/misc/mic/Kconfig b/drivers/misc/mic/Kconfig
index aaefd0cf82a7..279a2e649059 100644
--- a/drivers/misc/mic/Kconfig
+++ b/drivers/misc/mic/Kconfig
@@ -17,3 +17,21 @@ config INTEL_MIC_HOST
 	  More information about the Intel MIC family as well as the Linux
 	  OS and tools for MIC to use with this driver are available from
 	  <http://software.intel.com/en-us/mic-developer>.
+
+comment "Intel MIC Card Driver"
+
+config INTEL_MIC_CARD
+	tristate "Intel MIC Card Driver"
+	depends on 64BIT
+	default N
+	help
+	  This enables card driver support for the Intel Many Integrated
+	  Core (MIC) device family. The card driver communicates shutdown/
+	  crash events to the host and allows registration/configuration of
+	  virtio devices. Intel MIC X100 devices are currently supported.
+
+	  If you are building a card kernel for an Intel MIC device then
+	  say M (recommended) or Y, else say N. If unsure say N.
+
+	  For more information see
+	  <http://software.intel.com/en-us/mic-developer>.
diff --git a/drivers/misc/mic/Makefile b/drivers/misc/mic/Makefile
index 8e724212d94c..05b34d683a58 100644
--- a/drivers/misc/mic/Makefile
+++ b/drivers/misc/mic/Makefile
@@ -3,3 +3,4 @@
 # Copyright(c) 2013, Intel Corporation.
 #
 obj-$(CONFIG_INTEL_MIC_HOST) += host/
+obj-$(CONFIG_INTEL_MIC_CARD) += card/
diff --git a/drivers/misc/mic/card/Makefile b/drivers/misc/mic/card/Makefile
new file mode 100644
index 000000000000..6e9675e12a09
--- /dev/null
+++ b/drivers/misc/mic/card/Makefile
@@ -0,0 +1,10 @@
+#
+# Makefile - Intel MIC Linux driver.
+# Copyright(c) 2013, Intel Corporation.
+#
+ccflags-y += -DINTEL_MIC_CARD
+
+obj-$(CONFIG_INTEL_MIC_CARD) += mic_card.o
+mic_card-y += mic_x100.o
+mic_card-y += mic_device.o
+mic_card-y += mic_debugfs.o
diff --git a/drivers/misc/mic/card/mic_debugfs.c b/drivers/misc/mic/card/mic_debugfs.c
new file mode 100644
index 000000000000..95cf186ff73a
--- /dev/null
+++ b/drivers/misc/mic/card/mic_debugfs.c
@@ -0,0 +1,130 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Disclaimer: The codes contained in these modules may be specific to
+ * the Intel Software Development Platform codenamed: Knights Ferry, and
+ * the Intel product codenamed: Knights Corner, and are not backward
+ * compatible with other Intel products. Additionally, Intel will NOT
+ * support the codes or instruction set in future products.
+ *
+ * Intel MIC Card driver.
+ *
+ */
+#include <linux/debugfs.h>
+#include <linux/delay.h>
+#include <linux/seq_file.h>
+#include <linux/interrupt.h>
+#include <linux/device.h>
+
+#include "../common/mic_device.h"
+#include "mic_device.h"
+
+/* Debugfs parent dir */
+static struct dentry *mic_dbg;
+
+/**
+ * mic_intr_test - Send interrupts to host.
+ */
+static int mic_intr_test(struct seq_file *s, void *unused)
+{
+	struct mic_driver *mdrv = s->private;
+	struct mic_device *mdev = &mdrv->mdev;
+
+	mic_send_intr(mdev, 0);
+	msleep(1000);
+	mic_send_intr(mdev, 1);
+	msleep(1000);
+	mic_send_intr(mdev, 2);
+	msleep(1000);
+	mic_send_intr(mdev, 3);
+	msleep(1000);
+
+	return 0;
+}
+
+static int mic_intr_test_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, mic_intr_test, inode->i_private);
+}
+
+static int mic_intr_test_release(struct inode *inode, struct file *file)
+{
+	return single_release(inode, file);
+}
+
+static const struct file_operations intr_test_ops = {
+	.owner   = THIS_MODULE,
+	.open    = mic_intr_test_open,
+	.read    = seq_read,
+	.llseek  = seq_lseek,
+	.release = mic_intr_test_release
+};
+
+/**
+ * mic_create_card_debug_dir - Initialize MIC debugfs entries.
+ */
+void __init mic_create_card_debug_dir(struct mic_driver *mdrv)
+{
+	struct dentry *d;
+
+	if (!mic_dbg)
+		return;
+
+	mdrv->dbg_dir = debugfs_create_dir(mdrv->name, mic_dbg);
+	if (!mdrv->dbg_dir) {
+		dev_err(mdrv->dev, "Cant create dbg_dir %s\n", mdrv->name);
+		return;
+	}
+
+	d = debugfs_create_file("intr_test", 0444, mdrv->dbg_dir,
+		mdrv, &intr_test_ops);
+
+	if (!d) {
+		dev_err(mdrv->dev,
+			"Cant create dbg intr_test %s\n", mdrv->name);
+		return;
+	}
+}
+
+/**
+ * mic_delete_card_debug_dir - Uninitialize MIC debugfs entries.
+ */
+void mic_delete_card_debug_dir(struct mic_driver *mdrv)
+{
+	if (!mdrv->dbg_dir)
+		return;
+
+	debugfs_remove_recursive(mdrv->dbg_dir);
+}
+
+/**
+ * mic_init_card_debugfs - Initialize global debugfs entry.
+ */
+void __init mic_init_card_debugfs(void)
+{
+	mic_dbg = debugfs_create_dir(KBUILD_MODNAME, NULL);
+	if (!mic_dbg)
+		pr_err("can't create debugfs dir\n");
+}
+
+/**
+ * mic_exit_card_debugfs - Uninitialize global debugfs entry
+ */
+void mic_exit_card_debugfs(void)
+{
+	debugfs_remove(mic_dbg);
+}
diff --git a/drivers/misc/mic/card/mic_device.c b/drivers/misc/mic/card/mic_device.c
new file mode 100644
index 000000000000..3c5c302dba41
--- /dev/null
+++ b/drivers/misc/mic/card/mic_device.c
@@ -0,0 +1,299 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Disclaimer: The codes contained in these modules may be specific to
+ * the Intel Software Development Platform codenamed: Knights Ferry, and
+ * the Intel product codenamed: Knights Corner, and are not backward
+ * compatible with other Intel products. Additionally, Intel will NOT
+ * support the codes or instruction set in future products.
+ *
+ * Intel MIC Card driver.
+ *
+ */
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/interrupt.h>
+#include <linux/reboot.h>
+
+#include <linux/mic_common.h>
+#include "../common/mic_device.h"
+#include "mic_device.h"
+
+static struct mic_driver *g_drv;
+static struct mic_irq *shutdown_cookie;
+
+static void mic_notify_host(u8 state)
+{
+	struct mic_driver *mdrv = g_drv;
+	struct mic_bootparam __iomem *bootparam = mdrv->dp;
+
+	iowrite8(state, &bootparam->shutdown_status);
+	dev_dbg(mdrv->dev, "%s %d system_state %d\n",
+		__func__, __LINE__, state);
+	mic_send_intr(&mdrv->mdev, ioread8(&bootparam->c2h_shutdown_db));
+}
+
+static int mic_panic_event(struct notifier_block *this, unsigned long event,
+		void *ptr)
+{
+	struct mic_driver *mdrv = g_drv;
+	struct mic_bootparam __iomem *bootparam = mdrv->dp;
+
+	iowrite8(-1, &bootparam->h2c_config_db);
+	iowrite8(-1, &bootparam->h2c_shutdown_db);
+	mic_notify_host(MIC_CRASHED);
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block mic_panic = {
+	.notifier_call  = mic_panic_event,
+};
+
+static irqreturn_t mic_shutdown_isr(int irq, void *data)
+{
+	struct mic_driver *mdrv = g_drv;
+	struct mic_bootparam __iomem *bootparam = mdrv->dp;
+
+	mic_ack_interrupt(&g_drv->mdev);
+	if (ioread8(&bootparam->shutdown_card))
+		orderly_poweroff(true);
+	return IRQ_HANDLED;
+}
+
+static int mic_shutdown_init(void)
+{
+	int rc = 0;
+	struct mic_driver *mdrv = g_drv;
+	struct mic_bootparam __iomem *bootparam = mdrv->dp;
+	int shutdown_db;
+
+	shutdown_db = mic_next_card_db();
+	shutdown_cookie = mic_request_card_irq(mic_shutdown_isr,
+			"Shutdown", mdrv, shutdown_db);
+	if (IS_ERR(shutdown_cookie))
+		rc = PTR_ERR(shutdown_cookie);
+	else
+		iowrite8(shutdown_db, &bootparam->h2c_shutdown_db);
+	return rc;
+}
+
+static void mic_shutdown_uninit(void)
+{
+	struct mic_driver *mdrv = g_drv;
+	struct mic_bootparam __iomem *bootparam = mdrv->dp;
+
+	iowrite8(-1, &bootparam->h2c_shutdown_db);
+	mic_free_card_irq(shutdown_cookie, mdrv);
+}
+
+static int __init mic_dp_init(void)
+{
+	struct mic_driver *mdrv = g_drv;
+	struct mic_device *mdev = &mdrv->mdev;
+	struct mic_bootparam __iomem *bootparam;
+	u64 lo, hi, dp_dma_addr;
+	u32 magic;
+
+	lo = mic_read_spad(&mdrv->mdev, MIC_DPLO_SPAD);
+	hi = mic_read_spad(&mdrv->mdev, MIC_DPHI_SPAD);
+
+	dp_dma_addr = lo | (hi << 32);
+	mdrv->dp = mic_card_map(mdev, dp_dma_addr, MIC_DP_SIZE);
+	if (!mdrv->dp) {
+		dev_err(mdrv->dev, "Cannot remap Aperture BAR\n");
+		return -ENOMEM;
+	}
+	bootparam = mdrv->dp;
+	magic = ioread32(&bootparam->magic);
+	if (MIC_MAGIC != magic) {
+		dev_err(mdrv->dev, "bootparam magic mismatch 0x%x\n", magic);
+		return -EIO;
+	}
+	return 0;
+}
+
+/* Uninitialize the device page */
+static void mic_dp_uninit(void)
+{
+	mic_card_unmap(&g_drv->mdev, g_drv->dp);
+}
+
+/**
+ * mic_request_card_irq - request an irq.
+ *
+ * @func: The callback function that handles the interrupt.
+ * @name: The ASCII name of the callee requesting the irq.
+ * @data: private data that is returned back when calling the
+ * function handler.
+ * @index: The doorbell index of the requester.
+ *
+ * returns: The cookie that is transparent to the caller. Passed
+ * back when calling mic_free_irq. An appropriate error code
+ * is returned on failure. Caller needs to use IS_ERR(return_val)
+ * to check for failure and PTR_ERR(return_val) to obtained the
+ * error code.
+ *
+ */
+struct mic_irq *mic_request_card_irq(irqreturn_t (*func)(int irq, void *data),
+	const char *name, void *data, int index)
+{
+	int rc = 0;
+	unsigned long cookie;
+	struct mic_driver *mdrv = g_drv;
+
+	rc  = request_irq(mic_db_to_irq(mdrv, index), func,
+		0, name, data);
+	if (rc) {
+		dev_err(mdrv->dev, "request_irq failed rc = %d\n", rc);
+		goto err;
+	}
+	mdrv->irq_info.irq_usage_count[index]++;
+	cookie = index;
+	return (struct mic_irq *)cookie;
+err:
+	return ERR_PTR(rc);
+
+}
+
+/**
+ * mic_free_card_irq - free irq.
+ *
+ * @cookie: cookie obtained during a successful call to mic_request_irq
+ * @data: private data specified by the calling function during the
+ * mic_request_irq
+ *
+ * returns: none.
+ */
+void mic_free_card_irq(struct mic_irq *cookie, void *data)
+{
+	int index;
+	struct mic_driver *mdrv = g_drv;
+
+	index = (unsigned long)cookie & 0xFFFFU;
+	free_irq(mic_db_to_irq(mdrv, index), data);
+	mdrv->irq_info.irq_usage_count[index]--;
+}
+
+/**
+ * mic_next_card_db - Get the doorbell with minimum usage count.
+ *
+ * Returns the irq index.
+ */
+int mic_next_card_db(void)
+{
+	int i;
+	int index = 0;
+	struct mic_driver *mdrv = g_drv;
+
+	for (i = 0; i < mdrv->intr_info.num_intr; i++) {
+		if (mdrv->irq_info.irq_usage_count[i] <
+			mdrv->irq_info.irq_usage_count[index])
+			index = i;
+	}
+
+	return index;
+}
+
+/**
+ * mic_init_irq - Initialize irq information.
+ *
+ * Returns 0 in success. Appropriate error code on failure.
+ */
+static int mic_init_irq(void)
+{
+	struct mic_driver *mdrv = g_drv;
+
+	mdrv->irq_info.irq_usage_count = kzalloc((sizeof(u32) *
+			mdrv->intr_info.num_intr),
+			GFP_KERNEL);
+	if (!mdrv->irq_info.irq_usage_count)
+		return -ENOMEM;
+	return 0;
+}
+
+/**
+ * mic_uninit_irq - Uninitialize irq information.
+ *
+ * None.
+ */
+static void mic_uninit_irq(void)
+{
+	struct mic_driver *mdrv = g_drv;
+
+	kfree(mdrv->irq_info.irq_usage_count);
+}
+
+/*
+ * mic_driver_init - MIC driver initialization tasks.
+ *
+ * Returns 0 in success. Appropriate error code on failure.
+ */
+int __init mic_driver_init(struct mic_driver *mdrv)
+{
+	int rc;
+
+	g_drv = mdrv;
+	/*
+	 * Unloading the card module is not supported. The MIC card module
+	 * handles fundamental operations like host/card initiated shutdowns
+	 * and informing the host about card crashes and cannot be unloaded.
+	 */
+	if (!try_module_get(mdrv->dev->driver->owner)) {
+		rc = -ENODEV;
+		goto done;
+	}
+	rc = mic_dp_init();
+	if (rc)
+		goto put;
+	rc = mic_init_irq();
+	if (rc)
+		goto dp_uninit;
+	rc = mic_shutdown_init();
+	if (rc)
+		goto irq_uninit;
+	mic_create_card_debug_dir(mdrv);
+	atomic_notifier_chain_register(&panic_notifier_list, &mic_panic);
+done:
+	return rc;
+irq_uninit:
+	mic_uninit_irq();
+dp_uninit:
+	mic_dp_uninit();
+put:
+	module_put(mdrv->dev->driver->owner);
+	return rc;
+}
+
+/*
+ * mic_driver_uninit - MIC driver uninitialization tasks.
+ *
+ * Returns None
+ */
+void mic_driver_uninit(struct mic_driver *mdrv)
+{
+	mic_delete_card_debug_dir(mdrv);
+	/*
+	 * Inform the host about the shutdown status i.e. poweroff/restart etc.
+	 * The module cannot be unloaded so the only code path to call
+	 * mic_devices_uninit(..) is the shutdown callback.
+	 */
+	mic_notify_host(system_state);
+	mic_shutdown_uninit();
+	mic_uninit_irq();
+	mic_dp_uninit();
+	module_put(mdrv->dev->driver->owner);
+}
diff --git a/drivers/misc/mic/card/mic_device.h b/drivers/misc/mic/card/mic_device.h
new file mode 100644
index 000000000000..347b9b3b7916
--- /dev/null
+++ b/drivers/misc/mic/card/mic_device.h
@@ -0,0 +1,133 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Disclaimer: The codes contained in these modules may be specific to
+ * the Intel Software Development Platform codenamed: Knights Ferry, and
+ * the Intel product codenamed: Knights Corner, and are not backward
+ * compatible with other Intel products. Additionally, Intel will NOT
+ * support the codes or instruction set in future products.
+ *
+ * Intel MIC Card driver.
+ *
+ */
+#ifndef _MIC_CARD_DEVICE_H_
+#define _MIC_CARD_DEVICE_H_
+
+#include <linux/workqueue.h>
+#include <linux/io.h>
+
+/**
+ * struct mic_intr_info - Contains h/w specific interrupt sources info
+ *
+ * @num_intr: The number of irqs available
+ */
+struct mic_intr_info {
+	u32 num_intr;
+};
+
+/**
+ * struct mic_irq_info - OS specific irq information
+ *
+ * @irq_usage_count: usage count array tracking the number of sources
+ * assigned for each irq.
+ */
+struct mic_irq_info {
+	int *irq_usage_count;
+};
+
+/**
+ * struct mic_device -  MIC device information.
+ *
+ * @mmio: MMIO bar information.
+ */
+struct mic_device {
+	struct mic_mw mmio;
+};
+
+/**
+ * struct mic_driver - MIC card driver information.
+ *
+ * @name: Name for MIC driver.
+ * @dbg_dir: debugfs directory of this MIC device.
+ * @dev: The device backing this MIC.
+ * @dp: The pointer to the virtio device page.
+ * @mdev: MIC device information for the host.
+ * @hotplug_work: Hot plug work for adding/removing virtio devices.
+ * @irq_info: The OS specific irq information
+ * @intr_info: H/W specific interrupt information.
+ */
+struct mic_driver {
+	char name[20];
+	struct dentry *dbg_dir;
+	struct device *dev;
+	void __iomem *dp;
+	struct mic_device mdev;
+	struct work_struct hotplug_work;
+	struct mic_irq_info irq_info;
+	struct mic_intr_info intr_info;
+};
+
+/**
+ * struct mic_irq - opaque pointer used as cookie
+ */
+struct mic_irq;
+
+/**
+ * mic_mmio_read - read from an MMIO register.
+ * @mw: MMIO register base virtual address.
+ * @offset: register offset.
+ *
+ * RETURNS: register value.
+ */
+static inline u32 mic_mmio_read(struct mic_mw *mw, u32 offset)
+{
+	return ioread32(mw->va + offset);
+}
+
+/**
+ * mic_mmio_write - write to an MMIO register.
+ * @mw: MMIO register base virtual address.
+ * @val: the data value to put into the register
+ * @offset: register offset.
+ *
+ * RETURNS: none.
+ */
+static inline void
+mic_mmio_write(struct mic_mw *mw, u32 val, u32 offset)
+{
+	iowrite32(val, mw->va + offset);
+}
+
+int mic_driver_init(struct mic_driver *mdrv);
+void mic_driver_uninit(struct mic_driver *mdrv);
+int mic_next_card_db(void);
+struct mic_irq *mic_request_card_irq(irqreturn_t (*func)(int irq, void *data),
+	const char *name, void *data, int intr_src);
+void mic_free_card_irq(struct mic_irq *cookie, void *data);
+u32 mic_read_spad(struct mic_device *mdev, unsigned int idx);
+void mic_send_intr(struct mic_device *mdev, int doorbell);
+int mic_db_to_irq(struct mic_driver *mdrv, int db);
+u32 mic_ack_interrupt(struct mic_device *mdev);
+void mic_hw_intr_init(struct mic_driver *mdrv);
+void __iomem *
+mic_card_map(struct mic_device *mdev, dma_addr_t addr, size_t size);
+void mic_card_unmap(struct mic_device *mdev, void __iomem *addr);
+void __init mic_create_card_debug_dir(struct mic_driver *mdrv);
+void mic_delete_card_debug_dir(struct mic_driver *mdrv);
+void __init mic_init_card_debugfs(void);
+void mic_exit_card_debugfs(void);
+#endif
diff --git a/drivers/misc/mic/card/mic_x100.c b/drivers/misc/mic/card/mic_x100.c
new file mode 100644
index 000000000000..7cb3469cf684
--- /dev/null
+++ b/drivers/misc/mic/card/mic_x100.c
@@ -0,0 +1,256 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Disclaimer: The codes contained in these modules may be specific to
+ * the Intel Software Development Platform codenamed: Knights Ferry, and
+ * the Intel product codenamed: Knights Corner, and are not backward
+ * compatible with other Intel products. Additionally, Intel will NOT
+ * support the codes or instruction set in future products.
+ *
+ * Intel MIC Card driver.
+ *
+ */
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+
+#include "../common/mic_device.h"
+#include "mic_device.h"
+#include "mic_x100.h"
+
+static const char mic_driver_name[] = "mic";
+
+static struct mic_driver g_drv;
+
+/**
+ * mic_read_spad - read from the scratchpad register
+ * @mdev: pointer to mic_device instance
+ * @idx: index to scratchpad register, 0 based
+ *
+ * This function allows reading of the 32bit scratchpad register.
+ *
+ * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
+ */
+u32 mic_read_spad(struct mic_device *mdev, unsigned int idx)
+{
+	return mic_mmio_read(&mdev->mmio,
+		MIC_X100_SBOX_BASE_ADDRESS +
+		MIC_X100_SBOX_SPAD0 + idx * 4);
+}
+
+/**
+ * __mic_send_intr - Send interrupt to Host.
+ * @mdev: pointer to mic_device instance
+ * @doorbell: Doorbell number.
+ */
+void mic_send_intr(struct mic_device *mdev, int doorbell)
+{
+	struct mic_mw *mw = &mdev->mmio;
+
+	if (doorbell > MIC_X100_MAX_DOORBELL_IDX)
+		return;
+	/* Ensure that the interrupt is ordered w.r.t previous stores. */
+	wmb();
+	mic_mmio_write(mw, MIC_X100_SBOX_SDBIC0_DBREQ_BIT,
+		MIC_X100_SBOX_BASE_ADDRESS +
+		(MIC_X100_SBOX_SDBIC0 + (4 * doorbell)));
+}
+
+/**
+ * mic_ack_interrupt - Device specific interrupt handling.
+ * @mdev: pointer to mic_device instance
+ *
+ * Returns: bitmask of doorbell events triggered.
+ */
+u32 mic_ack_interrupt(struct mic_device *mdev)
+{
+	return 0;
+}
+
+static inline int mic_get_sbox_irq(int db)
+{
+	return MIC_X100_IRQ_BASE + db;
+}
+
+static inline int mic_get_rdmasr_irq(int index)
+{
+	return  MIC_X100_RDMASR_IRQ_BASE + index;
+}
+
+/**
+ * mic_hw_intr_init - Initialize h/w specific interrupt
+ * information.
+ * @mdrv: pointer to mic_driver
+ */
+void mic_hw_intr_init(struct mic_driver *mdrv)
+{
+	mdrv->intr_info.num_intr = MIC_X100_NUM_SBOX_IRQ +
+				MIC_X100_NUM_RDMASR_IRQ;
+}
+
+/**
+ * mic_db_to_irq - Retrieve irq number corresponding to a doorbell.
+ * @mdrv: pointer to mic_driver
+ * @db: The doorbell obtained for which the irq is needed. Doorbell
+ * may correspond to an sbox doorbell or an rdmasr index.
+ *
+ * Returns the irq corresponding to the doorbell.
+ */
+int mic_db_to_irq(struct mic_driver *mdrv, int db)
+{
+	int rdmasr_index;
+	if (db < MIC_X100_NUM_SBOX_IRQ) {
+		return mic_get_sbox_irq(db);
+	} else {
+		rdmasr_index = db - MIC_X100_NUM_SBOX_IRQ +
+			MIC_X100_RDMASR_IRQ_BASE;
+		return mic_get_rdmasr_irq(rdmasr_index);
+	}
+}
+
+/*
+ * mic_card_map - Allocate virtual address for a remote memory region.
+ * @mdev: pointer to mic_device instance.
+ * @addr: Remote DMA address.
+ * @size: Size of the region.
+ *
+ * Returns: Virtual address backing the remote memory region.
+ */
+void __iomem *
+mic_card_map(struct mic_device *mdev, dma_addr_t addr, size_t size)
+{
+	return ioremap(addr, size);
+}
+
+/*
+ * mic_card_unmap - Unmap the virtual address for a remote memory region.
+ * @mdev: pointer to mic_device instance.
+ * @addr: Virtual address for remote memory region.
+ *
+ * Returns: None.
+ */
+void mic_card_unmap(struct mic_device *mdev, void __iomem *addr)
+{
+	iounmap(addr);
+}
+
+static int __init mic_probe(struct platform_device *pdev)
+{
+	struct mic_driver *mdrv = &g_drv;
+	struct mic_device *mdev = &mdrv->mdev;
+	int rc = 0;
+
+	mdrv->dev = &pdev->dev;
+	snprintf(mdrv->name, sizeof(mic_driver_name), mic_driver_name);
+
+	mdev->mmio.pa = MIC_X100_MMIO_BASE;
+	mdev->mmio.len = MIC_X100_MMIO_LEN;
+	mdev->mmio.va = ioremap(MIC_X100_MMIO_BASE, MIC_X100_MMIO_LEN);
+	if (!mdev->mmio.va) {
+		dev_err(&pdev->dev, "Cannot remap MMIO BAR\n");
+		rc = -EIO;
+		goto done;
+	}
+	mic_hw_intr_init(mdrv);
+	rc = mic_driver_init(mdrv);
+	if (rc) {
+		dev_err(&pdev->dev, "mic_driver_init failed rc %d\n", rc);
+		goto iounmap;
+	}
+done:
+	return rc;
+iounmap:
+	iounmap(mdev->mmio.va);
+	return rc;
+}
+
+static int mic_remove(struct platform_device *pdev)
+{
+	struct mic_driver *mdrv = &g_drv;
+	struct mic_device *mdev = &mdrv->mdev;
+
+	mic_driver_uninit(mdrv);
+	iounmap(mdev->mmio.va);
+	return 0;
+}
+
+static void mic_platform_shutdown(struct platform_device *pdev)
+{
+	mic_remove(pdev);
+}
+
+static struct platform_device mic_platform_dev = {
+	.name = mic_driver_name,
+	.id   = 0,
+	.num_resources = 0,
+};
+
+static struct platform_driver __refdata mic_platform_driver = {
+	.probe = mic_probe,
+	.remove = mic_remove,
+	.shutdown = mic_platform_shutdown,
+	.driver         = {
+		.name   = mic_driver_name,
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init mic_init(void)
+{
+	int ret;
+	struct cpuinfo_x86 *c = &cpu_data(0);
+
+	if (!(c->x86 == 11 && c->x86_model == 1)) {
+		ret = -ENODEV;
+		pr_err("%s not running on X100 ret %d\n", __func__, ret);
+		goto done;
+	}
+
+	mic_init_card_debugfs();
+	ret = platform_device_register(&mic_platform_dev);
+	if (ret) {
+		pr_err("platform_device_register ret %d\n", ret);
+		goto cleanup_debugfs;
+	}
+	ret = platform_driver_register(&mic_platform_driver);
+	if (ret) {
+		pr_err("platform_driver_register ret %d\n", ret);
+		goto device_unregister;
+	}
+	return ret;
+
+device_unregister:
+	platform_device_unregister(&mic_platform_dev);
+cleanup_debugfs:
+	mic_exit_card_debugfs();
+done:
+	return ret;
+}
+
+static void __exit mic_exit(void)
+{
+	platform_driver_unregister(&mic_platform_driver);
+	platform_device_unregister(&mic_platform_dev);
+	mic_exit_card_debugfs();
+}
+
+module_init(mic_init);
+module_exit(mic_exit);
+
+MODULE_AUTHOR("Intel Corporation");
+MODULE_DESCRIPTION("Intel(R) MIC X100 Card driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/misc/mic/card/mic_x100.h b/drivers/misc/mic/card/mic_x100.h
new file mode 100644
index 000000000000..d66ea55639c3
--- /dev/null
+++ b/drivers/misc/mic/card/mic_x100.h
@@ -0,0 +1,48 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Disclaimer: The codes contained in these modules may be specific to
+ * the Intel Software Development Platform codenamed: Knights Ferry, and
+ * the Intel product codenamed: Knights Corner, and are not backward
+ * compatible with other Intel products. Additionally, Intel will NOT
+ * support the codes or instruction set in future products.
+ *
+ * Intel MIC Card driver.
+ *
+ */
+#ifndef _MIC_X100_CARD_H_
+#define _MIC_X100_CARD_H_
+
+#define MIC_X100_MMIO_BASE 0x08007C0000ULL
+#define MIC_X100_MMIO_LEN 0x00020000ULL
+#define MIC_X100_SBOX_BASE_ADDRESS 0x00010000ULL
+
+#define MIC_X100_SBOX_SPAD0 0x0000AB20
+#define MIC_X100_SBOX_SDBIC0 0x0000CC90
+#define MIC_X100_SBOX_SDBIC0_DBREQ_BIT 0x80000000
+#define MIC_X100_SBOX_RDMASR0	0x0000B180
+
+#define MIC_X100_MAX_DOORBELL_IDX 8
+
+#define MIC_X100_NUM_SBOX_IRQ 8
+#define MIC_X100_NUM_RDMASR_IRQ 8
+#define MIC_X100_SBOX_IRQ_BASE 0
+#define MIC_X100_RDMASR_IRQ_BASE 17
+
+#define MIC_X100_IRQ_BASE 26
+
+#endif
-- 
cgit 


From f69bcbf3b4c4b333dcd7a48eaf868bf0c88edab5 Mon Sep 17 00:00:00 2001
From: Ashutosh Dixit <ashutosh.dixit@intel.com>
Date: Thu, 5 Sep 2013 16:42:18 -0700
Subject: Intel MIC Host Driver Changes for Virtio Devices.

This patch introduces the host "Virtio over PCIe" interface for
Intel MIC. It allows creating user space backends on the host and instantiating
virtio devices for them on the Intel MIC card. It uses the existing VRINGH
infrastructure in the kernel to access virtio rings from the host. A character
device per MIC is exposed with IOCTL, mmap and poll callbacks. This allows the
user space backend to:
(a) add/remove a virtio device via a device page.
(b) map (R/O) virtio rings and device page to user space.
(c) poll for availability of data.
(d) copy a descriptor or entire descriptor chain to/from the card.
(e) modify virtio configuration.
(f) handle virtio device reset.
The buffers are copied over using CPU copies for this initial patch
and host initiated MIC DMA support is planned for future patches.
The avail and desc virtio rings are in host memory and the used ring
is in card memory to maximize writes across PCIe for performance.

Co-author: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Caz Yokoyama <Caz.Yokoyama@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Harshavardhan R Kharche <harshavardhan.r.kharche@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Acked-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mic/Kconfig             |   1 +
 drivers/misc/mic/common/mic_device.h |   7 +
 drivers/misc/mic/host/Makefile       |   2 +
 drivers/misc/mic/host/mic_boot.c     |   3 +-
 drivers/misc/mic/host/mic_debugfs.c  | 140 +++++++
 drivers/misc/mic/host/mic_device.h   |   5 +
 drivers/misc/mic/host/mic_fops.c     | 221 +++++++++++
 drivers/misc/mic/host/mic_fops.h     |  32 ++
 drivers/misc/mic/host/mic_main.c     |  26 ++
 drivers/misc/mic/host/mic_virtio.c   | 703 +++++++++++++++++++++++++++++++++++
 drivers/misc/mic/host/mic_virtio.h   | 138 +++++++
 include/uapi/linux/Kbuild            |   1 +
 include/uapi/linux/mic_common.h      | 166 ++++++++-
 include/uapi/linux/mic_ioctl.h       |  74 ++++
 14 files changed, 1517 insertions(+), 2 deletions(-)
 create mode 100644 drivers/misc/mic/host/mic_fops.c
 create mode 100644 drivers/misc/mic/host/mic_fops.h
 create mode 100644 drivers/misc/mic/host/mic_virtio.c
 create mode 100644 drivers/misc/mic/host/mic_virtio.h
 create mode 100644 include/uapi/linux/mic_ioctl.h

diff --git a/drivers/misc/mic/Kconfig b/drivers/misc/mic/Kconfig
index 279a2e649059..01f1a4a84c63 100644
--- a/drivers/misc/mic/Kconfig
+++ b/drivers/misc/mic/Kconfig
@@ -3,6 +3,7 @@ comment "Intel MIC Host Driver"
 config INTEL_MIC_HOST
 	tristate "Intel MIC Host Driver"
 	depends on 64BIT && PCI
+	select VHOST_RING
 	default N
 	help
 	  This enables Host Driver support for the Intel Many Integrated
diff --git a/drivers/misc/mic/common/mic_device.h b/drivers/misc/mic/common/mic_device.h
index 6440e9d58d3a..01eb74faae6b 100644
--- a/drivers/misc/mic/common/mic_device.h
+++ b/drivers/misc/mic/common/mic_device.h
@@ -41,4 +41,11 @@ struct mic_mw {
 #define MIC_DPLO_SPAD 14
 #define MIC_DPHI_SPAD 15
 
+/*
+ * These values are supposed to be in the config_change field of the
+ * device page when the host sends a config change interrupt to the card.
+ */
+#define MIC_VIRTIO_PARAM_DEV_REMOVE 0x1
+#define MIC_VIRTIO_PARAM_CONFIG_CHANGED 0x2
+
 #endif
diff --git a/drivers/misc/mic/host/Makefile b/drivers/misc/mic/host/Makefile
index a375dd32c3e2..c2197f999394 100644
--- a/drivers/misc/mic/host/Makefile
+++ b/drivers/misc/mic/host/Makefile
@@ -10,3 +10,5 @@ mic_host-objs += mic_smpt.o
 mic_host-objs += mic_intr.o
 mic_host-objs += mic_boot.o
 mic_host-objs += mic_debugfs.o
+mic_host-objs += mic_fops.o
+mic_host-objs += mic_virtio.o
diff --git a/drivers/misc/mic/host/mic_boot.c b/drivers/misc/mic/host/mic_boot.c
index 936fc58084f3..fd9ff6d3784e 100644
--- a/drivers/misc/mic/host/mic_boot.c
+++ b/drivers/misc/mic/host/mic_boot.c
@@ -20,12 +20,12 @@
  */
 #include <linux/delay.h>
 #include <linux/firmware.h>
-#include <linux/interrupt.h>
 
 #include <linux/mic_common.h>
 #include "../common/mic_device.h"
 #include "mic_device.h"
 #include "mic_smpt.h"
+#include "mic_virtio.h"
 
 /**
  * mic_reset - Reset the MIC device.
@@ -117,6 +117,7 @@ void mic_stop(struct mic_device *mdev, bool force)
 {
 	mutex_lock(&mdev->mic_mutex);
 	if (MIC_OFFLINE != mdev->state || force) {
+		mic_virtio_reset_devices(mdev);
 		mic_bootparam_init(mdev);
 		mic_reset(mdev);
 		if (MIC_RESET_FAILED == mdev->state)
diff --git a/drivers/misc/mic/host/mic_debugfs.c b/drivers/misc/mic/host/mic_debugfs.c
index 78541d42aaf9..e22fb7bbbb98 100644
--- a/drivers/misc/mic/host/mic_debugfs.c
+++ b/drivers/misc/mic/host/mic_debugfs.c
@@ -26,6 +26,7 @@
 #include "../common/mic_device.h"
 #include "mic_device.h"
 #include "mic_smpt.h"
+#include "mic_virtio.h"
 
 /* Debugfs parent dir */
 static struct dentry *mic_dbg;
@@ -193,7 +194,13 @@ static const struct file_operations post_code_ops = {
 static int mic_dp_show(struct seq_file *s, void *pos)
 {
 	struct mic_device *mdev = s->private;
+	struct mic_device_desc *d;
+	struct mic_device_ctrl *dc;
+	struct mic_vqconfig *vqconfig;
+	__u32 *features;
+	__u8 *config;
 	struct mic_bootparam *bootparam = mdev->dp;
+	int i, j;
 
 	seq_printf(s, "Bootparam: magic 0x%x\n",
 		bootparam->magic);
@@ -208,6 +215,53 @@ static int mic_dp_show(struct seq_file *s, void *pos)
 	seq_printf(s, "Bootparam: shutdown_card %d\n",
 		bootparam->shutdown_card);
 
+	for (i = sizeof(*bootparam); i < MIC_DP_SIZE;
+	     i += mic_total_desc_size(d)) {
+		d = mdev->dp + i;
+		dc = (void *)d + mic_aligned_desc_size(d);
+
+		/* end of list */
+		if (d->type == 0)
+			break;
+
+		if (d->type == -1)
+			continue;
+
+		seq_printf(s, "Type %d ", d->type);
+		seq_printf(s, "Num VQ %d ", d->num_vq);
+		seq_printf(s, "Feature Len %d\n", d->feature_len);
+		seq_printf(s, "Config Len %d ", d->config_len);
+		seq_printf(s, "Shutdown Status %d\n", d->status);
+
+		for (j = 0; j < d->num_vq; j++) {
+			vqconfig = mic_vq_config(d) + j;
+			seq_printf(s, "vqconfig[%d]: ", j);
+			seq_printf(s, "address 0x%llx ", vqconfig->address);
+			seq_printf(s, "num %d ", vqconfig->num);
+			seq_printf(s, "used address 0x%llx\n",
+				vqconfig->used_address);
+		}
+
+		features = (__u32 *) mic_vq_features(d);
+		seq_printf(s, "Features: Host 0x%x ", features[0]);
+		seq_printf(s, "Guest 0x%x\n", features[1]);
+
+		config = mic_vq_configspace(d);
+		for (j = 0; j < d->config_len; j++)
+			seq_printf(s, "config[%d]=%d\n", j, config[j]);
+
+		seq_puts(s, "Device control:\n");
+		seq_printf(s, "Config Change %d ", dc->config_change);
+		seq_printf(s, "Vdev reset %d\n", dc->vdev_reset);
+		seq_printf(s, "Guest Ack %d ", dc->guest_ack);
+		seq_printf(s, "Host ack %d\n", dc->host_ack);
+		seq_printf(s, "Used address updated %d ",
+			dc->used_address_updated);
+		seq_printf(s, "Vdev 0x%llx\n", dc->vdev);
+		seq_printf(s, "c2h doorbell %d ", dc->c2h_vdev_db);
+		seq_printf(s, "h2c doorbell %d\n", dc->h2c_vdev_db);
+	}
+
 	return 0;
 }
 
@@ -229,6 +283,89 @@ static const struct file_operations dp_ops = {
 	.release = mic_dp_debug_release
 };
 
+static int mic_vdev_info_show(struct seq_file *s, void *unused)
+{
+	struct mic_device *mdev = s->private;
+	struct list_head *pos, *tmp;
+	struct mic_vdev *mvdev;
+	int i, j;
+
+	mutex_lock(&mdev->mic_mutex);
+	list_for_each_safe(pos, tmp, &mdev->vdev_list) {
+		mvdev = list_entry(pos, struct mic_vdev, list);
+		seq_printf(s, "VDEV type %d state %s in %ld out %ld\n",
+			mvdev->virtio_id,
+			mic_vdevup(mvdev) ? "UP" : "DOWN",
+			mvdev->in_bytes,
+			mvdev->out_bytes);
+		for (i = 0; i < MIC_MAX_VRINGS; i++) {
+			struct vring_desc *desc;
+			struct vring_avail *avail;
+			struct vring_used *used;
+			struct mic_vringh *mvr = &mvdev->mvr[i];
+			struct vringh *vrh = &mvr->vrh;
+			int num = vrh->vring.num;
+			if (!num)
+				continue;
+			desc = vrh->vring.desc;
+			seq_printf(s, "vring i %d avail_idx %d",
+				i, mvr->vring.info->avail_idx & (num - 1));
+			seq_printf(s, " vring i %d avail_idx %d\n",
+				i, mvr->vring.info->avail_idx);
+			seq_printf(s, "vrh i %d weak_barriers %d",
+				i, vrh->weak_barriers);
+			seq_printf(s, " last_avail_idx %d last_used_idx %d",
+				vrh->last_avail_idx, vrh->last_used_idx);
+			seq_printf(s, " completed %d\n", vrh->completed);
+			for (j = 0; j < num; j++) {
+				seq_printf(s, "desc[%d] addr 0x%llx len %d",
+					j, desc->addr, desc->len);
+				seq_printf(s, " flags 0x%x next %d\n",
+					desc->flags,
+					desc->next);
+				desc++;
+			}
+			avail = vrh->vring.avail;
+			seq_printf(s, "avail flags 0x%x idx %d\n",
+				avail->flags, avail->idx & (num - 1));
+			seq_printf(s, "avail flags 0x%x idx %d\n",
+				avail->flags, avail->idx);
+			for (j = 0; j < num; j++)
+				seq_printf(s, "avail ring[%d] %d\n",
+					j, avail->ring[j]);
+			used = vrh->vring.used;
+			seq_printf(s, "used flags 0x%x idx %d\n",
+				used->flags, used->idx & (num - 1));
+			seq_printf(s, "used flags 0x%x idx %d\n",
+				used->flags, used->idx);
+			for (j = 0; j < num; j++)
+				seq_printf(s, "used ring[%d] id %d len %d\n",
+					j, used->ring[j].id, used->ring[j].len);
+		}
+	}
+	mutex_unlock(&mdev->mic_mutex);
+
+	return 0;
+}
+
+static int mic_vdev_info_debug_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, mic_vdev_info_show, inode->i_private);
+}
+
+static int mic_vdev_info_debug_release(struct inode *inode, struct file *file)
+{
+	return single_release(inode, file);
+}
+
+static const struct file_operations vdev_info_ops = {
+	.owner   = THIS_MODULE,
+	.open    = mic_vdev_info_debug_open,
+	.read    = seq_read,
+	.llseek  = seq_lseek,
+	.release = mic_vdev_info_debug_release
+};
+
 static int mic_msi_irq_info_show(struct seq_file *s, void *pos)
 {
 	struct mic_device *mdev  = s->private;
@@ -321,6 +458,9 @@ void mic_create_debug_dir(struct mic_device *mdev)
 	debugfs_create_file("dp", 0444, mdev->dbg_dir,
 		mdev, &dp_ops);
 
+	debugfs_create_file("vdev_info", 0444, mdev->dbg_dir,
+		mdev, &vdev_info_ops);
+
 	debugfs_create_file("msi_irq_info", 0444, mdev->dbg_dir,
 		mdev, &msi_irq_info_ops);
 }
diff --git a/drivers/misc/mic/host/mic_device.h b/drivers/misc/mic/host/mic_device.h
index 50b8b88d70d3..dcba2a59e77f 100644
--- a/drivers/misc/mic/host/mic_device.h
+++ b/drivers/misc/mic/host/mic_device.h
@@ -21,6 +21,7 @@
 #ifndef _MIC_DEVICE_H_
 #define _MIC_DEVICE_H_
 
+#include <linux/cdev.h>
 #include <linux/idr.h>
 
 #include "mic_intr.h"
@@ -80,6 +81,8 @@ enum mic_stepping {
  * @dp_dma_addr: virtio device page DMA address.
  * @shutdown_db: shutdown doorbell.
  * @shutdown_cookie: shutdown cookie.
+ * @cdev: Character device for MIC.
+ * @vdev_list: list of virtio devices.
  */
 struct mic_device {
 	struct mic_mw mmio;
@@ -113,6 +116,8 @@ struct mic_device {
 	dma_addr_t dp_dma_addr;
 	int shutdown_db;
 	struct mic_irq *shutdown_cookie;
+	struct cdev cdev;
+	struct list_head vdev_list;
 };
 
 /**
diff --git a/drivers/misc/mic/host/mic_fops.c b/drivers/misc/mic/host/mic_fops.c
new file mode 100644
index 000000000000..661469ad339d
--- /dev/null
+++ b/drivers/misc/mic/host/mic_fops.c
@@ -0,0 +1,221 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC Host driver.
+ *
+ */
+#include <linux/poll.h>
+
+#include <linux/mic_common.h>
+#include "../common/mic_device.h"
+#include "mic_device.h"
+#include "mic_fops.h"
+#include "mic_virtio.h"
+
+int mic_open(struct inode *inode, struct file *f)
+{
+	struct mic_vdev *mvdev;
+	struct mic_device *mdev = container_of(inode->i_cdev,
+		struct mic_device, cdev);
+
+	mvdev = kzalloc(sizeof(*mvdev), GFP_KERNEL);
+	if (!mvdev)
+		return -ENOMEM;
+
+	init_waitqueue_head(&mvdev->waitq);
+	INIT_LIST_HEAD(&mvdev->list);
+	mvdev->mdev = mdev;
+	mvdev->virtio_id = -1;
+
+	f->private_data = mvdev;
+	return 0;
+}
+
+int mic_release(struct inode *inode, struct file *f)
+{
+	struct mic_vdev *mvdev = (struct mic_vdev *)f->private_data;
+
+	if (-1 != mvdev->virtio_id)
+		mic_virtio_del_device(mvdev);
+	f->private_data = NULL;
+	kfree(mvdev);
+	return 0;
+}
+
+long mic_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
+{
+	struct mic_vdev *mvdev = (struct mic_vdev *)f->private_data;
+	void __user *argp = (void __user *)arg;
+	int ret;
+
+	switch (cmd) {
+	case MIC_VIRTIO_ADD_DEVICE:
+	{
+		ret = mic_virtio_add_device(mvdev, argp);
+		if (ret < 0) {
+			dev_err(mic_dev(mvdev),
+				"%s %d errno ret %d\n",
+				__func__, __LINE__, ret);
+			return ret;
+		}
+		break;
+	}
+	case MIC_VIRTIO_COPY_DESC:
+	{
+		struct mic_copy_desc copy;
+
+		ret = mic_vdev_inited(mvdev);
+		if (ret)
+			return ret;
+
+		if (copy_from_user(&copy, argp, sizeof(copy)))
+			return -EFAULT;
+
+		dev_dbg(mic_dev(mvdev),
+			"%s %d === iovcnt 0x%x vr_idx 0x%x update_used %d\n",
+			__func__, __LINE__, copy.iovcnt, copy.vr_idx,
+			copy.update_used);
+
+		ret = mic_virtio_copy_desc(mvdev, &copy);
+		if (ret < 0) {
+			dev_err(mic_dev(mvdev),
+				"%s %d errno ret %d\n",
+				__func__, __LINE__, ret);
+			return ret;
+		}
+		if (copy_to_user(
+			&((struct mic_copy_desc __user *)argp)->out_len,
+			&copy.out_len, sizeof(copy.out_len))) {
+			dev_err(mic_dev(mvdev), "%s %d errno ret %d\n",
+				__func__, __LINE__, -EFAULT);
+			return -EFAULT;
+		}
+		break;
+	}
+	case MIC_VIRTIO_CONFIG_CHANGE:
+	{
+		ret = mic_vdev_inited(mvdev);
+		if (ret)
+			return ret;
+
+		ret = mic_virtio_config_change(mvdev, argp);
+		if (ret < 0) {
+			dev_err(mic_dev(mvdev),
+				"%s %d errno ret %d\n",
+				__func__, __LINE__, ret);
+			return ret;
+		}
+		break;
+	}
+	default:
+		return -ENOIOCTLCMD;
+	};
+	return 0;
+}
+
+/*
+ * We return POLLIN | POLLOUT from poll when new buffers are enqueued, and
+ * not when previously enqueued buffers may be available. This means that
+ * in the card->host (TX) path, when userspace is unblocked by poll it
+ * must drain all available descriptors or it can stall.
+ */
+unsigned int mic_poll(struct file *f, poll_table *wait)
+{
+	struct mic_vdev *mvdev = (struct mic_vdev *)f->private_data;
+	int mask = 0;
+
+	poll_wait(f, &mvdev->waitq, wait);
+
+	if (mic_vdev_inited(mvdev))
+		mask = POLLERR;
+	else if (mvdev->poll_wake) {
+		mvdev->poll_wake = 0;
+		mask = POLLIN | POLLOUT;
+	}
+
+	return mask;
+}
+
+static inline int
+mic_query_offset(struct mic_vdev *mvdev, unsigned long offset,
+	unsigned long *size, unsigned long *pa)
+{
+	struct mic_device *mdev = mvdev->mdev;
+	unsigned long start = MIC_DP_SIZE;
+	int i;
+
+	/*
+	 * MMAP interface is as follows:
+	 * offset				region
+	 * 0x0					virtio device_page
+	 * 0x1000				first vring
+	 * 0x1000 + size of 1st vring		second vring
+	 * ....
+	 */
+	if (!offset) {
+		*pa = virt_to_phys(mdev->dp);
+		*size = MIC_DP_SIZE;
+		return 0;
+	}
+
+	for (i = 0; i < mvdev->dd->num_vq; i++) {
+		struct mic_vringh *mvr = &mvdev->mvr[i];
+		if (offset == start) {
+			*pa = virt_to_phys(mvr->vring.va);
+			*size = mvr->vring.len;
+			return 0;
+		}
+		start += mvr->vring.len;
+	}
+	return -1;
+}
+
+/*
+ * Maps the device page and virtio rings to user space for readonly access.
+ */
+int
+mic_mmap(struct file *f, struct vm_area_struct *vma)
+{
+	struct mic_vdev *mvdev = (struct mic_vdev *)f->private_data;
+	unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
+	unsigned long pa, size = vma->vm_end - vma->vm_start, size_rem = size;
+	int i, err;
+
+	err = mic_vdev_inited(mvdev);
+	if (err)
+		return err;
+
+	if (vma->vm_flags & VM_WRITE)
+		return -EACCES;
+
+	while (size_rem) {
+		i = mic_query_offset(mvdev, offset, &size, &pa);
+		if (i < 0)
+			return -EINVAL;
+		err = remap_pfn_range(vma, vma->vm_start + offset,
+			pa >> PAGE_SHIFT, size, vma->vm_page_prot);
+		if (err)
+			return err;
+		dev_dbg(mic_dev(mvdev),
+			"%s %d type %d size 0x%lx off 0x%lx pa 0x%lx vma 0x%lx\n",
+			__func__, __LINE__, mvdev->virtio_id, size, offset,
+			pa, vma->vm_start + offset);
+		size_rem -= size;
+		offset += size;
+	}
+	return 0;
+}
diff --git a/drivers/misc/mic/host/mic_fops.h b/drivers/misc/mic/host/mic_fops.h
new file mode 100644
index 000000000000..dc3893dff667
--- /dev/null
+++ b/drivers/misc/mic/host/mic_fops.h
@@ -0,0 +1,32 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC Host driver.
+ *
+ */
+#ifndef _MIC_FOPS_H_
+#define _MIC_FOPS_H_
+
+int mic_open(struct inode *inode, struct file *filp);
+int mic_release(struct inode *inode, struct file *filp);
+ssize_t mic_read(struct file *filp, char __user *buf,
+			size_t count, loff_t *pos);
+long mic_ioctl(struct file *filp, unsigned int cmd, unsigned long arg);
+int mic_mmap(struct file *f, struct vm_area_struct *vma);
+unsigned int mic_poll(struct file *f, poll_table *wait);
+
+#endif
diff --git a/drivers/misc/mic/host/mic_main.c b/drivers/misc/mic/host/mic_main.c
index 998a20ab7e96..a8965d496e84 100644
--- a/drivers/misc/mic/host/mic_main.c
+++ b/drivers/misc/mic/host/mic_main.c
@@ -25,12 +25,15 @@
 #include <linux/fs.h>
 #include <linux/module.h>
 #include <linux/pci.h>
+#include <linux/poll.h>
 
 #include <linux/mic_common.h>
 #include "../common/mic_device.h"
 #include "mic_device.h"
 #include "mic_x100.h"
 #include "mic_smpt.h"
+#include "mic_fops.h"
+#include "mic_virtio.h"
 
 static const char mic_driver_name[] = "mic";
 
@@ -64,6 +67,15 @@ static struct class *g_mic_class;
 /* Base device node number for MIC devices */
 static dev_t g_mic_devno;
 
+static const struct file_operations mic_fops = {
+	.open = mic_open,
+	.release = mic_release,
+	.unlocked_ioctl = mic_ioctl,
+	.poll = mic_poll,
+	.mmap = mic_mmap,
+	.owner = THIS_MODULE,
+};
+
 /* Initialize the device page */
 static int mic_dp_init(struct mic_device *mdev)
 {
@@ -193,6 +205,7 @@ mic_device_init(struct mic_device *mdev, struct pci_dev *pdev)
 	mdev->irq_info.next_avail_src = 0;
 	INIT_WORK(&mdev->reset_trigger_work, mic_reset_trigger_work);
 	INIT_WORK(&mdev->shutdown_work, mic_shutdown_work);
+	INIT_LIST_HEAD(&mdev->vdev_list);
 }
 
 /**
@@ -330,7 +343,19 @@ static int mic_probe(struct pci_dev *pdev,
 	mic_bootparam_init(mdev);
 
 	mic_create_debug_dir(mdev);
+	cdev_init(&mdev->cdev, &mic_fops);
+	mdev->cdev.owner = THIS_MODULE;
+	rc = cdev_add(&mdev->cdev, MKDEV(MAJOR(g_mic_devno), mdev->id), 1);
+	if (rc) {
+		dev_err(&pdev->dev, "cdev_add err id %d rc %d\n", mdev->id, rc);
+		goto cleanup_debug_dir;
+	}
 	return 0;
+cleanup_debug_dir:
+	mic_delete_debug_dir(mdev);
+	mutex_lock(&mdev->mic_mutex);
+	mic_free_irq(mdev, mdev->shutdown_cookie, mdev);
+	mutex_unlock(&mdev->mic_mutex);
 dp_uninit:
 	mic_dp_uninit(mdev);
 sysfs_put:
@@ -375,6 +400,7 @@ static void mic_remove(struct pci_dev *pdev)
 		return;
 
 	mic_stop(mdev, false);
+	cdev_del(&mdev->cdev);
 	mic_delete_debug_dir(mdev);
 	mutex_lock(&mdev->mic_mutex);
 	mic_free_irq(mdev, mdev->shutdown_cookie, mdev);
diff --git a/drivers/misc/mic/host/mic_virtio.c b/drivers/misc/mic/host/mic_virtio.c
new file mode 100644
index 000000000000..be2a1f06c4ca
--- /dev/null
+++ b/drivers/misc/mic/host/mic_virtio.c
@@ -0,0 +1,703 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC Host driver.
+ *
+ */
+#include <linux/pci.h>
+#include <linux/sched.h>
+#include <linux/uaccess.h>
+
+#include <linux/mic_common.h>
+#include "../common/mic_device.h"
+#include "mic_device.h"
+#include "mic_smpt.h"
+#include "mic_virtio.h"
+
+/*
+ * Initiates the copies across the PCIe bus from card memory to
+ * a user space buffer.
+ */
+static int mic_virtio_copy_to_user(struct mic_vdev *mvdev,
+		void __user *ubuf, size_t len, u64 addr)
+{
+	int err;
+	void __iomem *dbuf = mvdev->mdev->aper.va + addr;
+	/*
+	 * We are copying from IO below an should ideally use something
+	 * like copy_to_user_fromio(..) if it existed.
+	 */
+	if (copy_to_user(ubuf, dbuf, len)) {
+		err = -EFAULT;
+		dev_err(mic_dev(mvdev), "%s %d err %d\n",
+			__func__, __LINE__, err);
+		goto err;
+	}
+	mvdev->in_bytes += len;
+	err = 0;
+err:
+	return err;
+}
+
+/*
+ * Initiates copies across the PCIe bus from a user space
+ * buffer to card memory.
+ */
+static int mic_virtio_copy_from_user(struct mic_vdev *mvdev,
+		void __user *ubuf, size_t len, u64 addr)
+{
+	int err;
+	void __iomem *dbuf = mvdev->mdev->aper.va + addr;
+	/*
+	 * We are copying to IO below and should ideally use something
+	 * like copy_from_user_toio(..) if it existed.
+	 */
+	if (copy_from_user(dbuf, ubuf, len)) {
+		err = -EFAULT;
+		dev_err(mic_dev(mvdev), "%s %d err %d\n",
+			__func__, __LINE__, err);
+		goto err;
+	}
+	mvdev->out_bytes += len;
+	err = 0;
+err:
+	return err;
+}
+
+#define MIC_VRINGH_READ true
+
+/* The function to call to notify the card about added buffers */
+static void mic_notify(struct vringh *vrh)
+{
+	struct mic_vringh *mvrh = container_of(vrh, struct mic_vringh, vrh);
+	struct mic_vdev *mvdev = mvrh->mvdev;
+	s8 db = mvdev->dc->h2c_vdev_db;
+
+	if (db != -1)
+		mvdev->mdev->ops->send_intr(mvdev->mdev, db);
+}
+
+/* Determine the total number of bytes consumed in a VRINGH KIOV */
+static inline u32 mic_vringh_iov_consumed(struct vringh_kiov *iov)
+{
+	int i;
+	u32 total = iov->consumed;
+
+	for (i = 0; i < iov->i; i++)
+		total += iov->iov[i].iov_len;
+	return total;
+}
+
+/*
+ * Traverse the VRINGH KIOV and issue the APIs to trigger the copies.
+ * This API is heavily based on the vringh_iov_xfer(..) implementation
+ * in vringh.c. The reason we cannot reuse vringh_iov_pull_kern(..)
+ * and vringh_iov_push_kern(..) directly is because there is no
+ * way to override the VRINGH xfer(..) routines as of v3.10.
+ */
+static int mic_vringh_copy(struct mic_vdev *mvdev, struct vringh_kiov *iov,
+	void __user *ubuf, size_t len, bool read, size_t *out_len)
+{
+	int ret = 0;
+	size_t partlen, tot_len = 0;
+
+	while (len && iov->i < iov->used) {
+		partlen = min(iov->iov[iov->i].iov_len, len);
+		if (read)
+			ret = mic_virtio_copy_to_user(mvdev,
+				ubuf, partlen,
+				(u64)iov->iov[iov->i].iov_base);
+		else
+			ret = mic_virtio_copy_from_user(mvdev,
+				ubuf, partlen,
+				(u64)iov->iov[iov->i].iov_base);
+		if (ret) {
+			dev_err(mic_dev(mvdev), "%s %d err %d\n",
+				__func__, __LINE__, ret);
+			break;
+		}
+		len -= partlen;
+		ubuf += partlen;
+		tot_len += partlen;
+		iov->consumed += partlen;
+		iov->iov[iov->i].iov_len -= partlen;
+		iov->iov[iov->i].iov_base += partlen;
+		if (!iov->iov[iov->i].iov_len) {
+			/* Fix up old iov element then increment. */
+			iov->iov[iov->i].iov_len = iov->consumed;
+			iov->iov[iov->i].iov_base -= iov->consumed;
+
+			iov->consumed = 0;
+			iov->i++;
+		}
+	}
+	*out_len = tot_len;
+	return ret;
+}
+
+/*
+ * Use the standard VRINGH infrastructure in the kernel to fetch new
+ * descriptors, initiate the copies and update the used ring.
+ */
+static int _mic_virtio_copy(struct mic_vdev *mvdev,
+	struct mic_copy_desc *copy)
+{
+	int ret = 0, iovcnt = copy->iovcnt;
+	struct iovec iov;
+	struct iovec __user *u_iov = copy->iov;
+	void __user *ubuf = NULL;
+	struct mic_vringh *mvr = &mvdev->mvr[copy->vr_idx];
+	struct vringh_kiov *riov = &mvr->riov;
+	struct vringh_kiov *wiov = &mvr->wiov;
+	struct vringh *vrh = &mvr->vrh;
+	u16 *head = &mvr->head;
+	struct mic_vring *vr = &mvr->vring;
+	size_t len = 0, out_len;
+
+	copy->out_len = 0;
+	/* Fetch a new IOVEC if all previous elements have been processed */
+	if (riov->i == riov->used && wiov->i == wiov->used) {
+		ret = vringh_getdesc_kern(vrh, riov, wiov,
+				head, GFP_KERNEL);
+		/* Check if there are available descriptors */
+		if (ret <= 0)
+			return ret;
+	}
+	while (iovcnt) {
+		if (!len) {
+			/* Copy over a new iovec from user space. */
+			ret = copy_from_user(&iov, u_iov, sizeof(*u_iov));
+			if (ret) {
+				ret = -EINVAL;
+				dev_err(mic_dev(mvdev), "%s %d err %d\n",
+					__func__, __LINE__, ret);
+				break;
+			}
+			len = iov.iov_len;
+			ubuf = iov.iov_base;
+		}
+		/* Issue all the read descriptors first */
+		ret = mic_vringh_copy(mvdev, riov, ubuf, len,
+			MIC_VRINGH_READ, &out_len);
+		if (ret) {
+			dev_err(mic_dev(mvdev), "%s %d err %d\n",
+					__func__, __LINE__, ret);
+			break;
+		}
+		len -= out_len;
+		ubuf += out_len;
+		copy->out_len += out_len;
+		/* Issue the write descriptors next */
+		ret = mic_vringh_copy(mvdev, wiov, ubuf, len,
+			!MIC_VRINGH_READ, &out_len);
+		if (ret) {
+			dev_err(mic_dev(mvdev), "%s %d err %d\n",
+					__func__, __LINE__, ret);
+			break;
+		}
+		len -= out_len;
+		ubuf += out_len;
+		copy->out_len += out_len;
+		if (!len) {
+			/* One user space iovec is now completed */
+			iovcnt--;
+			u_iov++;
+		}
+		/* Exit loop if all elements in KIOVs have been processed. */
+		if (riov->i == riov->used && wiov->i == wiov->used)
+			break;
+	}
+	/*
+	 * Update the used ring if a descriptor was available and some data was
+	 * copied in/out and the user asked for a used ring update.
+	 */
+	if (*head != USHRT_MAX && copy->out_len &&
+		copy->update_used) {
+		u32 total = 0;
+
+		/* Determine the total data consumed */
+		total += mic_vringh_iov_consumed(riov);
+		total += mic_vringh_iov_consumed(wiov);
+		vringh_complete_kern(vrh, *head, total);
+		*head = USHRT_MAX;
+		if (vringh_need_notify_kern(vrh) > 0)
+			vringh_notify(vrh);
+		vringh_kiov_cleanup(riov);
+		vringh_kiov_cleanup(wiov);
+		/* Update avail idx for user space */
+		vr->info->avail_idx = vrh->last_avail_idx;
+	}
+	return ret;
+}
+
+static inline int mic_verify_copy_args(struct mic_vdev *mvdev,
+		struct mic_copy_desc *copy)
+{
+	if (copy->vr_idx >= mvdev->dd->num_vq) {
+		dev_err(mic_dev(mvdev), "%s %d err %d\n",
+			__func__, __LINE__, -EINVAL);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+/* Copy a specified number of virtio descriptors in a chain */
+int mic_virtio_copy_desc(struct mic_vdev *mvdev,
+		struct mic_copy_desc *copy)
+{
+	int err;
+	struct mic_vringh *mvr = &mvdev->mvr[copy->vr_idx];
+
+	err = mic_verify_copy_args(mvdev, copy);
+	if (err)
+		return err;
+
+	mutex_lock(&mvr->vr_mutex);
+	if (!mic_vdevup(mvdev)) {
+		err = -ENODEV;
+		dev_err(mic_dev(mvdev), "%s %d err %d\n",
+			__func__, __LINE__, err);
+		goto err;
+	}
+	err = _mic_virtio_copy(mvdev, copy);
+	if (err) {
+		dev_err(mic_dev(mvdev), "%s %d err %d\n",
+			__func__, __LINE__, err);
+	}
+err:
+	mutex_unlock(&mvr->vr_mutex);
+	return err;
+}
+
+static void mic_virtio_init_post(struct mic_vdev *mvdev)
+{
+	struct mic_vqconfig *vqconfig = mic_vq_config(mvdev->dd);
+	int i;
+
+	for (i = 0; i < mvdev->dd->num_vq; i++) {
+		if (!le64_to_cpu(vqconfig[i].used_address)) {
+			dev_warn(mic_dev(mvdev), "used_address zero??\n");
+			continue;
+		}
+		mvdev->mvr[i].vrh.vring.used =
+			mvdev->mdev->aper.va +
+			le64_to_cpu(vqconfig[i].used_address);
+	}
+
+	mvdev->dc->used_address_updated = 0;
+
+	dev_dbg(mic_dev(mvdev), "%s: device type %d LINKUP\n",
+		__func__, mvdev->virtio_id);
+}
+
+static inline void mic_virtio_device_reset(struct mic_vdev *mvdev)
+{
+	int i;
+
+	dev_dbg(mic_dev(mvdev), "%s: status %d device type %d RESET\n",
+		__func__, mvdev->dd->status, mvdev->virtio_id);
+
+	for (i = 0; i < mvdev->dd->num_vq; i++)
+		/*
+		 * Avoid lockdep false positive. The + 1 is for the mic
+		 * mutex which is held in the reset devices code path.
+		 */
+		mutex_lock_nested(&mvdev->mvr[i].vr_mutex, i + 1);
+
+	/* 0 status means "reset" */
+	mvdev->dd->status = 0;
+	mvdev->dc->vdev_reset = 0;
+	mvdev->dc->host_ack = 1;
+
+	for (i = 0; i < mvdev->dd->num_vq; i++) {
+		struct vringh *vrh = &mvdev->mvr[i].vrh;
+		mvdev->mvr[i].vring.info->avail_idx = 0;
+		vrh->completed = 0;
+		vrh->last_avail_idx = 0;
+		vrh->last_used_idx = 0;
+	}
+
+	for (i = 0; i < mvdev->dd->num_vq; i++)
+		mutex_unlock(&mvdev->mvr[i].vr_mutex);
+}
+
+void mic_virtio_reset_devices(struct mic_device *mdev)
+{
+	struct list_head *pos, *tmp;
+	struct mic_vdev *mvdev;
+
+	dev_dbg(mdev->sdev->parent, "%s\n",  __func__);
+
+	list_for_each_safe(pos, tmp, &mdev->vdev_list) {
+		mvdev = list_entry(pos, struct mic_vdev, list);
+		mic_virtio_device_reset(mvdev);
+		mvdev->poll_wake = 1;
+		wake_up(&mvdev->waitq);
+	}
+}
+
+void mic_bh_handler(struct work_struct *work)
+{
+	struct mic_vdev *mvdev = container_of(work, struct mic_vdev,
+			virtio_bh_work);
+
+	if (mvdev->dc->used_address_updated)
+		mic_virtio_init_post(mvdev);
+
+	if (mvdev->dc->vdev_reset)
+		mic_virtio_device_reset(mvdev);
+
+	mvdev->poll_wake = 1;
+	wake_up(&mvdev->waitq);
+}
+
+static irqreturn_t mic_virtio_intr_handler(int irq, void *data)
+{
+
+	struct mic_vdev *mvdev = data;
+	struct mic_device *mdev = mvdev->mdev;
+
+	mdev->ops->ack_interrupt(mdev);
+	schedule_work(&mvdev->virtio_bh_work);
+	return IRQ_HANDLED;
+}
+
+int mic_virtio_config_change(struct mic_vdev *mvdev,
+			void __user *argp)
+{
+	DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wake);
+	int ret = 0, retry = 100, i;
+	struct mic_bootparam *bootparam = mvdev->mdev->dp;
+	s8 db = bootparam->h2c_config_db;
+
+	mutex_lock(&mvdev->mdev->mic_mutex);
+	for (i = 0; i < mvdev->dd->num_vq; i++)
+		mutex_lock_nested(&mvdev->mvr[i].vr_mutex, i + 1);
+
+	if (db == -1 || mvdev->dd->type == -1) {
+		ret = -EIO;
+		goto exit;
+	}
+
+	if (copy_from_user(mic_vq_configspace(mvdev->dd),
+				argp, mvdev->dd->config_len)) {
+		dev_err(mic_dev(mvdev), "%s %d err %d\n",
+			__func__, __LINE__, -EFAULT);
+		ret = -EFAULT;
+		goto exit;
+	}
+	mvdev->dc->config_change = MIC_VIRTIO_PARAM_CONFIG_CHANGED;
+	mvdev->mdev->ops->send_intr(mvdev->mdev, db);
+
+	for (i = retry; i--;) {
+		ret = wait_event_timeout(wake,
+			mvdev->dc->guest_ack, msecs_to_jiffies(100));
+		if (ret)
+			break;
+	}
+
+	dev_dbg(mic_dev(mvdev),
+		"%s %d retry: %d\n", __func__, __LINE__, retry);
+	mvdev->dc->config_change = 0;
+	mvdev->dc->guest_ack = 0;
+exit:
+	for (i = 0; i < mvdev->dd->num_vq; i++)
+		mutex_unlock(&mvdev->mvr[i].vr_mutex);
+	mutex_unlock(&mvdev->mdev->mic_mutex);
+	return ret;
+}
+
+static int mic_copy_dp_entry(struct mic_vdev *mvdev,
+					void __user *argp,
+					__u8 *type,
+					struct mic_device_desc **devpage)
+{
+	struct mic_device *mdev = mvdev->mdev;
+	struct mic_device_desc dd, *dd_config, *devp;
+	struct mic_vqconfig *vqconfig;
+	int ret = 0, i;
+	bool slot_found = false;
+
+	if (copy_from_user(&dd, argp, sizeof(dd))) {
+		dev_err(mic_dev(mvdev), "%s %d err %d\n",
+			__func__, __LINE__, -EFAULT);
+		return -EFAULT;
+	}
+
+	if (mic_aligned_desc_size(&dd) > MIC_MAX_DESC_BLK_SIZE
+		|| dd.num_vq > MIC_MAX_VRINGS) {
+		dev_err(mic_dev(mvdev), "%s %d err %d\n",
+			__func__, __LINE__, -EINVAL);
+		return -EINVAL;
+	}
+
+	dd_config = kmalloc(mic_desc_size(&dd), GFP_KERNEL);
+	if (dd_config == NULL) {
+		dev_err(mic_dev(mvdev), "%s %d err %d\n",
+			__func__, __LINE__, -ENOMEM);
+		return -ENOMEM;
+	}
+	if (copy_from_user(dd_config, argp, mic_desc_size(&dd))) {
+		ret = -EFAULT;
+		dev_err(mic_dev(mvdev), "%s %d err %d\n",
+			__func__, __LINE__, ret);
+		goto exit;
+	}
+
+	vqconfig = mic_vq_config(dd_config);
+	for (i = 0; i < dd.num_vq; i++) {
+		if (le16_to_cpu(vqconfig[i].num) > MIC_MAX_VRING_ENTRIES) {
+			ret =  -EINVAL;
+			dev_err(mic_dev(mvdev), "%s %d err %d\n",
+				__func__, __LINE__, ret);
+			goto exit;
+		}
+	}
+
+	/* Find the first free device page entry */
+	for (i = mic_aligned_size(struct mic_bootparam);
+		i < MIC_DP_SIZE - mic_total_desc_size(dd_config);
+		i += mic_total_desc_size(devp)) {
+		devp = mdev->dp + i;
+		if (devp->type == 0 || devp->type == -1) {
+			slot_found = true;
+			break;
+		}
+	}
+	if (!slot_found) {
+		ret =  -EINVAL;
+		dev_err(mic_dev(mvdev), "%s %d err %d\n",
+			__func__, __LINE__, ret);
+		goto exit;
+	}
+	/*
+	 * Save off the type before doing the memcpy. Type will be set in the
+	 * end after completing all initialization for the new device.
+	 */
+	*type = dd_config->type;
+	dd_config->type = 0;
+	memcpy(devp, dd_config, mic_desc_size(dd_config));
+
+	*devpage = devp;
+exit:
+	kfree(dd_config);
+	return ret;
+}
+
+static void mic_init_device_ctrl(struct mic_vdev *mvdev,
+				struct mic_device_desc *devpage)
+{
+	struct mic_device_ctrl *dc;
+
+	dc = mvdev->dc = (void *)devpage + mic_aligned_desc_size(devpage);
+
+	dc->config_change = 0;
+	dc->guest_ack = 0;
+	dc->vdev_reset = 0;
+	dc->host_ack = 0;
+	dc->used_address_updated = 0;
+	dc->c2h_vdev_db = -1;
+	dc->h2c_vdev_db = -1;
+}
+
+int mic_virtio_add_device(struct mic_vdev *mvdev,
+			void __user *argp)
+{
+	struct mic_device *mdev = mvdev->mdev;
+	struct mic_device_desc *dd;
+	struct mic_vqconfig *vqconfig;
+	int vr_size, i, j, ret;
+	u8 type;
+	s8 db;
+	char irqname[10];
+	struct mic_bootparam *bootparam = mdev->dp;
+	u16 num;
+
+	mutex_lock(&mdev->mic_mutex);
+
+	ret = mic_copy_dp_entry(mvdev, argp, &type, &dd);
+	if (ret) {
+		mutex_unlock(&mdev->mic_mutex);
+		return ret;
+	}
+
+	mic_init_device_ctrl(mvdev, dd);
+
+	mvdev->dd = dd;
+	mvdev->virtio_id = type;
+	vqconfig = mic_vq_config(dd);
+	INIT_WORK(&mvdev->virtio_bh_work, mic_bh_handler);
+
+	for (i = 0; i < dd->num_vq; i++) {
+		struct mic_vringh *mvr = &mvdev->mvr[i];
+		struct mic_vring *vr = &mvdev->mvr[i].vring;
+		num = le16_to_cpu(vqconfig[i].num);
+		mutex_init(&mvr->vr_mutex);
+		vr_size = PAGE_ALIGN(vring_size(num, MIC_VIRTIO_RING_ALIGN) +
+			sizeof(struct _mic_vring_info));
+		vr->va = (void *)
+			__get_free_pages(GFP_KERNEL | __GFP_ZERO,
+			get_order(vr_size));
+		if (!vr->va) {
+			ret = -ENOMEM;
+			dev_err(mic_dev(mvdev), "%s %d err %d\n",
+				__func__, __LINE__, ret);
+			goto err;
+		}
+		vr->len = vr_size;
+		vr->info = vr->va + vring_size(num, MIC_VIRTIO_RING_ALIGN);
+		vr->info->magic = MIC_MAGIC + mvdev->virtio_id + i;
+		vqconfig[i].address = mic_map_single(mdev,
+			vr->va, vr_size);
+		if (mic_map_error(vqconfig[i].address)) {
+			free_pages((unsigned long)vr->va,
+				get_order(vr_size));
+			ret = -ENOMEM;
+			dev_err(mic_dev(mvdev), "%s %d err %d\n",
+				__func__, __LINE__, ret);
+			goto err;
+		}
+		vqconfig[i].address = cpu_to_le64(vqconfig[i].address);
+
+		vring_init(&vr->vr, num,
+			vr->va, MIC_VIRTIO_RING_ALIGN);
+		ret = vringh_init_kern(&mvr->vrh,
+			*(u32 *)mic_vq_features(mvdev->dd), num, false,
+			vr->vr.desc, vr->vr.avail, vr->vr.used);
+		if (ret) {
+			dev_err(mic_dev(mvdev), "%s %d err %d\n",
+				__func__, __LINE__, ret);
+			goto err;
+		}
+		vringh_kiov_init(&mvr->riov, NULL, 0);
+		vringh_kiov_init(&mvr->wiov, NULL, 0);
+		mvr->head = USHRT_MAX;
+		mvr->mvdev = mvdev;
+		mvr->vrh.notify = mic_notify;
+		dev_dbg(mdev->sdev->parent,
+			"%s %d index %d va %p info %p vr_size 0x%x\n",
+			__func__, __LINE__, i, vr->va, vr->info, vr_size);
+	}
+
+	snprintf(irqname, sizeof(irqname),
+		"mic%dvirtio%d", mdev->id, mvdev->virtio_id);
+	mvdev->virtio_db = mic_next_db(mdev);
+	mvdev->virtio_cookie = mic_request_irq(mdev, mic_virtio_intr_handler,
+			irqname, mvdev, mvdev->virtio_db, MIC_INTR_DB);
+	if (IS_ERR(mvdev->virtio_cookie)) {
+		ret = PTR_ERR(mvdev->virtio_cookie);
+		dev_dbg(mdev->sdev->parent, "request irq failed\n");
+		goto err;
+	}
+
+	mvdev->dc->c2h_vdev_db = mvdev->virtio_db;
+
+	list_add_tail(&mvdev->list, &mdev->vdev_list);
+	/*
+	 * Order the type update with previous stores. This write barrier
+	 * is paired with the corresponding read barrier before the uncached
+	 * system memory read of the type, on the card while scanning the
+	 * device page.
+	 */
+	smp_wmb();
+	dd->type = type;
+
+	dev_dbg(mdev->sdev->parent, "Added virtio device id %d\n", dd->type);
+
+	db = bootparam->h2c_config_db;
+	if (db != -1)
+		mdev->ops->send_intr(mdev, db);
+	mutex_unlock(&mdev->mic_mutex);
+	return 0;
+err:
+	vqconfig = mic_vq_config(dd);
+	for (j = 0; j < i; j++) {
+		struct mic_vringh *mvr = &mvdev->mvr[j];
+		mic_unmap_single(mdev, le64_to_cpu(vqconfig[j].address),
+				mvr->vring.len);
+		free_pages((unsigned long)mvr->vring.va,
+			get_order(mvr->vring.len));
+	}
+	mutex_unlock(&mdev->mic_mutex);
+	return ret;
+}
+
+void mic_virtio_del_device(struct mic_vdev *mvdev)
+{
+	struct list_head *pos, *tmp;
+	struct mic_vdev *tmp_mvdev;
+	struct mic_device *mdev = mvdev->mdev;
+	DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wake);
+	int i, ret, retry = 100;
+	struct mic_vqconfig *vqconfig;
+	struct mic_bootparam *bootparam = mdev->dp;
+	s8 db;
+
+	mutex_lock(&mdev->mic_mutex);
+	db = bootparam->h2c_config_db;
+	if (db == -1)
+		goto skip_hot_remove;
+	dev_dbg(mdev->sdev->parent,
+		"Requesting hot remove id %d\n", mvdev->virtio_id);
+	mvdev->dc->config_change = MIC_VIRTIO_PARAM_DEV_REMOVE;
+	mdev->ops->send_intr(mdev, db);
+	for (i = retry; i--;) {
+		ret = wait_event_timeout(wake,
+			mvdev->dc->guest_ack, msecs_to_jiffies(100));
+		if (ret)
+			break;
+	}
+	dev_dbg(mdev->sdev->parent,
+		"Device id %d config_change %d guest_ack %d\n",
+		mvdev->virtio_id, mvdev->dc->config_change,
+		mvdev->dc->guest_ack);
+	mvdev->dc->config_change = 0;
+	mvdev->dc->guest_ack = 0;
+skip_hot_remove:
+	mic_free_irq(mdev, mvdev->virtio_cookie, mvdev);
+	flush_work(&mvdev->virtio_bh_work);
+	vqconfig = mic_vq_config(mvdev->dd);
+	for (i = 0; i < mvdev->dd->num_vq; i++) {
+		struct mic_vringh *mvr = &mvdev->mvr[i];
+		vringh_kiov_cleanup(&mvr->riov);
+		vringh_kiov_cleanup(&mvr->wiov);
+		mic_unmap_single(mdev, le64_to_cpu(vqconfig[i].address),
+				mvr->vring.len);
+		free_pages((unsigned long)mvr->vring.va,
+			get_order(mvr->vring.len));
+	}
+
+	list_for_each_safe(pos, tmp, &mdev->vdev_list) {
+		tmp_mvdev = list_entry(pos, struct mic_vdev, list);
+		if (tmp_mvdev == mvdev) {
+			list_del(pos);
+			dev_dbg(mdev->sdev->parent,
+				"Removing virtio device id %d\n",
+				mvdev->virtio_id);
+			break;
+		}
+	}
+	/*
+	 * Order the type update with previous stores. This write barrier
+	 * is paired with the corresponding read barrier before the uncached
+	 * system memory read of the type, on the card while scanning the
+	 * device page.
+	 */
+	smp_wmb();
+	mvdev->dd->type = -1;
+	mutex_unlock(&mdev->mic_mutex);
+}
diff --git a/drivers/misc/mic/host/mic_virtio.h b/drivers/misc/mic/host/mic_virtio.h
new file mode 100644
index 000000000000..184f3c84805b
--- /dev/null
+++ b/drivers/misc/mic/host/mic_virtio.h
@@ -0,0 +1,138 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC Host driver.
+ *
+ */
+#ifndef MIC_VIRTIO_H
+#define MIC_VIRTIO_H
+
+#include <linux/virtio_config.h>
+#include <linux/mic_ioctl.h>
+
+/*
+ * Note on endianness.
+ * 1. Host can be both BE or LE
+ * 2. Guest/card is LE. Host uses le_to_cpu to access desc/avail
+ *    rings and ioreadXX/iowriteXX to access used ring.
+ * 3. Device page exposed by host to guest contains LE values. Guest
+ *    accesses these using ioreadXX/iowriteXX etc. This way in general we
+ *    obey the virtio spec according to which guest works with native
+ *    endianness and host is aware of guest endianness and does all
+ *    required endianness conversion.
+ * 4. Data provided from user space to guest (in ADD_DEVICE and
+ *    CONFIG_CHANGE ioctl's) is not interpreted by the driver and should be
+ *    in guest endianness.
+ */
+
+/**
+ * struct mic_vringh - Virtio ring host information.
+ *
+ * @vring: The MIC vring used for setting up user space mappings.
+ * @vrh: The host VRINGH used for accessing the card vrings.
+ * @riov: The VRINGH read kernel IOV.
+ * @wiov: The VRINGH write kernel IOV.
+ * @head: The VRINGH head index address passed to vringh_getdesc_kern(..).
+ * @vr_mutex: Mutex for synchronizing access to the VRING.
+ * @mvdev: Back pointer to MIC virtio device for vringh_notify(..).
+ */
+struct mic_vringh {
+	struct mic_vring vring;
+	struct vringh vrh;
+	struct vringh_kiov riov;
+	struct vringh_kiov wiov;
+	u16 head;
+	struct mutex vr_mutex;
+	struct mic_vdev *mvdev;
+};
+
+/**
+ * struct mic_vdev - Host information for a card Virtio device.
+ *
+ * @virtio_id - Virtio device id.
+ * @waitq - Waitqueue to allow ring3 apps to poll.
+ * @mdev - Back pointer to host MIC device.
+ * @poll_wake - Used for waking up threads blocked in poll.
+ * @out_bytes - Debug stats for number of bytes copied from host to card.
+ * @in_bytes - Debug stats for number of bytes copied from card to host.
+ * @mvr - Store per VRING data structures.
+ * @virtio_bh_work - Work struct used to schedule virtio bottom half handling.
+ * @dd - Virtio device descriptor.
+ * @dc - Virtio device control fields.
+ * @list - List of Virtio devices.
+ * @virtio_db - The doorbell used by the card to interrupt the host.
+ * @virtio_cookie - The cookie returned while requesting interrupts.
+ */
+struct mic_vdev {
+	int virtio_id;
+	wait_queue_head_t waitq;
+	struct mic_device *mdev;
+	int poll_wake;
+	unsigned long out_bytes;
+	unsigned long in_bytes;
+	struct mic_vringh mvr[MIC_MAX_VRINGS];
+	struct work_struct virtio_bh_work;
+	struct mic_device_desc *dd;
+	struct mic_device_ctrl *dc;
+	struct list_head list;
+	int virtio_db;
+	struct mic_irq *virtio_cookie;
+};
+
+void mic_virtio_uninit(struct mic_device *mdev);
+int mic_virtio_add_device(struct mic_vdev *mvdev,
+			void __user *argp);
+void mic_virtio_del_device(struct mic_vdev *mvdev);
+int mic_virtio_config_change(struct mic_vdev *mvdev,
+			void __user *argp);
+int mic_virtio_copy_desc(struct mic_vdev *mvdev,
+	struct mic_copy_desc *request);
+void mic_virtio_reset_devices(struct mic_device *mdev);
+void mic_bh_handler(struct work_struct *work);
+
+/* Helper API to obtain the MIC PCIe device */
+static inline struct device *mic_dev(struct mic_vdev *mvdev)
+{
+	return mvdev->mdev->sdev->parent;
+}
+
+/* Helper API to check if a virtio device is initialized */
+static inline int mic_vdev_inited(struct mic_vdev *mvdev)
+{
+	/* Device has not been created yet */
+	if (!mvdev->dd || !mvdev->dd->type) {
+		dev_err(mic_dev(mvdev), "%s %d err %d\n",
+			__func__, __LINE__, -EINVAL);
+		return -EINVAL;
+	}
+
+	/* Device has been removed/deleted */
+	if (mvdev->dd->type == -1) {
+		dev_err(mic_dev(mvdev), "%s %d err %d\n",
+			__func__, __LINE__, -ENODEV);
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+/* Helper API to check if a virtio device is running */
+static inline bool mic_vdevup(struct mic_vdev *mvdev)
+{
+	return !!mvdev->dd->status;
+}
+#endif
diff --git a/include/uapi/linux/Kbuild b/include/uapi/linux/Kbuild
index d37263fbdca7..33d2b8fe166d 100644
--- a/include/uapi/linux/Kbuild
+++ b/include/uapi/linux/Kbuild
@@ -242,6 +242,7 @@ header-y += mei.h
 header-y += mempolicy.h
 header-y += meye.h
 header-y += mic_common.h
+header-y += mic_ioctl.h
 header-y += mii.h
 header-y += minix_fs.h
 header-y += mman.h
diff --git a/include/uapi/linux/mic_common.h b/include/uapi/linux/mic_common.h
index a9091e529183..364ac751bd04 100644
--- a/include/uapi/linux/mic_common.h
+++ b/include/uapi/linux/mic_common.h
@@ -21,7 +21,60 @@
 #ifndef __MIC_COMMON_H_
 #define __MIC_COMMON_H_
 
-#include <linux/types.h>
+#include <linux/virtio_ring.h>
+
+#ifndef __KERNEL__
+#define ALIGN(a, x)	(((a) + (x) - 1) & ~((x) - 1))
+#define __aligned(x)	__attribute__ ((aligned(x)))
+#endif
+
+#define mic_aligned_size(x) ALIGN(sizeof(x), 8)
+
+/**
+ * struct mic_device_desc: Virtio device information shared between the
+ * virtio driver and userspace backend
+ *
+ * @type: Device type: console/network/disk etc.  Type 0/-1 terminates.
+ * @num_vq: Number of virtqueues.
+ * @feature_len: Number of bytes of feature bits.  Multiply by 2: one for
+   host features and one for guest acknowledgements.
+ * @config_len: Number of bytes of the config array after virtqueues.
+ * @status: A status byte, written by the Guest.
+ * @config: Start of the following variable length config.
+ */
+struct mic_device_desc {
+	__s8 type;
+	__u8 num_vq;
+	__u8 feature_len;
+	__u8 config_len;
+	__u8 status;
+	__u64 config[0];
+} __aligned(8);
+
+/**
+ * struct mic_device_ctrl: Per virtio device information in the device page
+ * used internally by the host and card side drivers.
+ *
+ * @vdev: Used for storing MIC vdev information by the guest.
+ * @config_change: Set to 1 by host when a config change is requested.
+ * @vdev_reset: Set to 1 by guest to indicate virtio device has been reset.
+ * @guest_ack: Set to 1 by guest to ack a command.
+ * @host_ack: Set to 1 by host to ack a command.
+ * @used_address_updated: Set to 1 by guest when the used address should be
+ * updated.
+ * @c2h_vdev_db: The doorbell number to be used by guest. Set by host.
+ * @h2c_vdev_db: The doorbell number to be used by host. Set by guest.
+ */
+struct mic_device_ctrl {
+	__u64 vdev;
+	__u8 config_change;
+	__u8 vdev_reset;
+	__u8 guest_ack;
+	__u8 host_ack;
+	__u8 used_address_updated;
+	__s8 c2h_vdev_db;
+	__s8 h2c_vdev_db;
+} __aligned(8);
 
 /**
  * struct mic_bootparam: Virtio device independent information in device page
@@ -42,6 +95,117 @@ struct mic_bootparam {
 	__u8 shutdown_card;
 } __aligned(8);
 
+/**
+ * struct mic_device_page: High level representation of the device page
+ *
+ * @bootparam: The bootparam structure is used for sharing information and
+ * status updates between MIC host and card drivers.
+ * @desc: Array of MIC virtio device descriptors.
+ */
+struct mic_device_page {
+	struct mic_bootparam bootparam;
+	struct mic_device_desc desc[0];
+};
+/**
+ * struct mic_vqconfig: This is how we expect the device configuration field
+ * for a virtqueue to be laid out in config space.
+ *
+ * @address: Guest/MIC physical address of the virtio ring
+ * (avail and desc rings)
+ * @used_address: Guest/MIC physical address of the used ring
+ * @num: The number of entries in the virtio_ring
+ */
+struct mic_vqconfig {
+	__u64 address;
+	__u64 used_address;
+	__u16 num;
+} __aligned(8);
+
+/*
+ * The alignment to use between consumer and producer parts of vring.
+ * This is pagesize for historical reasons.
+ */
+#define MIC_VIRTIO_RING_ALIGN		4096
+
+#define MIC_MAX_VRINGS			4
+#define MIC_VRING_ENTRIES		128
+
+/*
+ * Max vring entries (power of 2) to ensure desc and avail rings
+ * fit in a single page
+ */
+#define MIC_MAX_VRING_ENTRIES		128
+
+/**
+ * Max size of the desc block in bytes: includes:
+ *	- struct mic_device_desc
+ *	- struct mic_vqconfig (num_vq of these)
+ *	- host and guest features
+ *	- virtio device config space
+ */
+#define MIC_MAX_DESC_BLK_SIZE		256
+
+/**
+ * struct _mic_vring_info - Host vring info exposed to userspace backend
+ * for the avail index and magic for the card.
+ *
+ * @avail_idx: host avail idx
+ * @magic: A magic debug cookie.
+ */
+struct _mic_vring_info {
+	__u16 avail_idx;
+	int magic;
+};
+
+/**
+ * struct mic_vring - Vring information.
+ *
+ * @vr: The virtio ring.
+ * @info: Host vring information exposed to the userspace backend for the
+ * avail index and magic for the card.
+ * @va: The va for the buffer allocated for vr and info.
+ * @len: The length of the buffer required for allocating vr and info.
+ */
+struct mic_vring {
+	struct vring vr;
+	struct _mic_vring_info *info;
+	void *va;
+	int len;
+};
+
+#define mic_aligned_desc_size(d) ALIGN(mic_desc_size(d), 8)
+
+#ifndef INTEL_MIC_CARD
+static inline unsigned mic_desc_size(const struct mic_device_desc *desc)
+{
+	return mic_aligned_size(*desc)
+		+ desc->num_vq * mic_aligned_size(struct mic_vqconfig)
+		+ desc->feature_len * 2
+		+ desc->config_len;
+}
+
+static inline struct mic_vqconfig *
+mic_vq_config(const struct mic_device_desc *desc)
+{
+	return (struct mic_vqconfig *)(desc + 1);
+}
+
+static inline __u8 *mic_vq_features(const struct mic_device_desc *desc)
+{
+	return (__u8 *)(mic_vq_config(desc) + desc->num_vq);
+}
+
+static inline __u8 *mic_vq_configspace(const struct mic_device_desc *desc)
+{
+	return mic_vq_features(desc) + desc->feature_len * 2;
+}
+static inline unsigned mic_total_desc_size(struct mic_device_desc *desc)
+{
+	return mic_aligned_desc_size(desc) +
+		mic_aligned_size(struct mic_device_ctrl);
+}
+#endif
+
 /* Device page size */
 #define MIC_DP_SIZE 4096
 
diff --git a/include/uapi/linux/mic_ioctl.h b/include/uapi/linux/mic_ioctl.h
new file mode 100644
index 000000000000..0e6cbf3e5292
--- /dev/null
+++ b/include/uapi/linux/mic_ioctl.h
@@ -0,0 +1,74 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC Host driver.
+ *
+ */
+#ifndef _MIC_IOCTL_H_
+#define _MIC_IOCTL_H_
+
+/*
+ * mic_copy - MIC virtio descriptor copy.
+ *
+ * @iov: An array of IOVEC structures containing user space buffers.
+ * @iovcnt: Number of IOVEC structures in iov.
+ * @vr_idx: The vring index.
+ * @update_used: A non zero value results in used index being updated.
+ * @out_len: The aggregate of the total length written to or read from
+ *	the virtio device.
+ */
+struct mic_copy_desc {
+#ifdef __KERNEL__
+	struct iovec __user *iov;
+#else
+	struct iovec *iov;
+#endif
+	int iovcnt;
+	__u8 vr_idx;
+	__u8 update_used;
+	__u32 out_len;
+};
+
+/*
+ * Add a new virtio device
+ * The (struct mic_device_desc *) pointer points to a device page entry
+ *	for the virtio device consisting of:
+ *	- struct mic_device_desc
+ *	- struct mic_vqconfig (num_vq of these)
+ *	- host and guest features
+ *	- virtio device config space
+ * The total size referenced by the pointer should equal the size returned
+ * by desc_size() in mic_common.h
+ */
+#define MIC_VIRTIO_ADD_DEVICE _IOWR('s', 1, struct mic_device_desc *)
+
+/*
+ * Copy the number of entries in the iovec and update the used index
+ * if requested by the user.
+ */
+#define MIC_VIRTIO_COPY_DESC	_IOWR('s', 2, struct mic_copy_desc *)
+
+/*
+ * Notify virtio device of a config change
+ * The (__u8 *) pointer points to config space values for the device
+ * as they should be written into the device page. The total size
+ * referenced by the pointer should equal the config_len field of struct
+ * mic_device_desc.
+ */
+#define MIC_VIRTIO_CONFIG_CHANGE _IOWR('s', 5, __u8 *)
+
+#endif
-- 
cgit 


From 2141c7c5ee677014023cb50c793f91e85f44d2ea Mon Sep 17 00:00:00 2001
From: Ashutosh Dixit <ashutosh.dixit@intel.com>
Date: Thu, 5 Sep 2013 16:42:28 -0700
Subject: Intel MIC Card Driver Changes for Virtio Devices.

This patch introduces the card "Virtio over PCIe" interface for
Intel MIC. It allows virtio drivers on the card to communicate with their
user space backends on the host via a device page. Ring 3 apps on the host
can add, remove and configure virtio devices. A thin MIC specific
virtio_config_ops is implemented which is borrowed heavily from previous
similar implementations in lguest and s390 @
drivers/lguest/lguest_device.c
drivers/s390/kvm/kvm_virtio.c

Co-author: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Caz Yokoyama <Caz.Yokoyama@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Harshavardhan R Kharche <harshavardhan.r.kharche@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Acked-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mic/Kconfig           |   1 +
 drivers/misc/mic/card/Makefile     |   1 +
 drivers/misc/mic/card/mic_device.c |   7 +
 drivers/misc/mic/card/mic_virtio.c | 631 +++++++++++++++++++++++++++++++++++++
 drivers/misc/mic/card/mic_virtio.h |  77 +++++
 5 files changed, 717 insertions(+)
 create mode 100644 drivers/misc/mic/card/mic_virtio.c
 create mode 100644 drivers/misc/mic/card/mic_virtio.h

diff --git a/drivers/misc/mic/Kconfig b/drivers/misc/mic/Kconfig
index 01f1a4a84c63..d453768e9cee 100644
--- a/drivers/misc/mic/Kconfig
+++ b/drivers/misc/mic/Kconfig
@@ -24,6 +24,7 @@ comment "Intel MIC Card Driver"
 config INTEL_MIC_CARD
 	tristate "Intel MIC Card Driver"
 	depends on 64BIT
+	select VIRTIO
 	default N
 	help
 	  This enables card driver support for the Intel Many Integrated
diff --git a/drivers/misc/mic/card/Makefile b/drivers/misc/mic/card/Makefile
index 6e9675e12a09..69d58bef92ce 100644
--- a/drivers/misc/mic/card/Makefile
+++ b/drivers/misc/mic/card/Makefile
@@ -8,3 +8,4 @@ obj-$(CONFIG_INTEL_MIC_CARD) += mic_card.o
 mic_card-y += mic_x100.o
 mic_card-y += mic_device.o
 mic_card-y += mic_debugfs.o
+mic_card-y += mic_virtio.o
diff --git a/drivers/misc/mic/card/mic_device.c b/drivers/misc/mic/card/mic_device.c
index 3c5c302dba41..4125217579af 100644
--- a/drivers/misc/mic/card/mic_device.c
+++ b/drivers/misc/mic/card/mic_device.c
@@ -32,6 +32,7 @@
 #include <linux/mic_common.h>
 #include "../common/mic_device.h"
 #include "mic_device.h"
+#include "mic_virtio.h"
 
 static struct mic_driver *g_drv;
 static struct mic_irq *shutdown_cookie;
@@ -265,10 +266,15 @@ int __init mic_driver_init(struct mic_driver *mdrv)
 	rc = mic_shutdown_init();
 	if (rc)
 		goto irq_uninit;
+	rc = mic_devices_init(mdrv);
+	if (rc)
+		goto shutdown_uninit;
 	mic_create_card_debug_dir(mdrv);
 	atomic_notifier_chain_register(&panic_notifier_list, &mic_panic);
 done:
 	return rc;
+shutdown_uninit:
+	mic_shutdown_uninit();
 irq_uninit:
 	mic_uninit_irq();
 dp_uninit:
@@ -286,6 +292,7 @@ put:
 void mic_driver_uninit(struct mic_driver *mdrv)
 {
 	mic_delete_card_debug_dir(mdrv);
+	mic_devices_uninit(mdrv);
 	/*
 	 * Inform the host about the shutdown status i.e. poweroff/restart etc.
 	 * The module cannot be unloaded so the only code path to call
diff --git a/drivers/misc/mic/card/mic_virtio.c b/drivers/misc/mic/card/mic_virtio.c
new file mode 100644
index 000000000000..38275c1b9e03
--- /dev/null
+++ b/drivers/misc/mic/card/mic_virtio.c
@@ -0,0 +1,631 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Disclaimer: The codes contained in these modules may be specific to
+ * the Intel Software Development Platform codenamed: Knights Ferry, and
+ * the Intel product codenamed: Knights Corner, and are not backward
+ * compatible with other Intel products. Additionally, Intel will NOT
+ * support the codes or instruction set in future products.
+ *
+ * Adapted from:
+ *
+ * virtio for kvm on s390
+ *
+ * Copyright IBM Corp. 2008
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License (version 2 only)
+ * as published by the Free Software Foundation.
+ *
+ *    Author(s): Christian Borntraeger <borntraeger@de.ibm.com>
+ *
+ * Intel MIC Card driver.
+ *
+ */
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/virtio_config.h>
+
+#include "../common/mic_device.h"
+#include "mic_virtio.h"
+
+#define VIRTIO_SUBCODE_64 0x0D00
+
+#define MIC_MAX_VRINGS                4
+struct mic_vdev {
+	struct virtio_device vdev;
+	struct mic_device_desc __iomem *desc;
+	struct mic_device_ctrl __iomem *dc;
+	struct mic_device *mdev;
+	void __iomem *vr[MIC_MAX_VRINGS];
+	int used_size[MIC_MAX_VRINGS];
+	struct completion reset_done;
+	struct mic_irq *virtio_cookie;
+	int c2h_vdev_db;
+};
+
+static struct mic_irq *virtio_config_cookie;
+#define to_micvdev(vd) container_of(vd, struct mic_vdev, vdev)
+
+/* Helper API to obtain the parent of the virtio device */
+static inline struct device *mic_dev(struct mic_vdev *mvdev)
+{
+	return mvdev->vdev.dev.parent;
+}
+
+/* This gets the device's feature bits. */
+static u32 mic_get_features(struct virtio_device *vdev)
+{
+	unsigned int i, bits;
+	u32 features = 0;
+	struct mic_device_desc __iomem *desc = to_micvdev(vdev)->desc;
+	u8 __iomem *in_features = mic_vq_features(desc);
+	int feature_len = ioread8(&desc->feature_len);
+
+	bits = min_t(unsigned, feature_len,
+		sizeof(vdev->features)) * 8;
+	for (i = 0; i < bits; i++)
+		if (ioread8(&in_features[i / 8]) & (BIT(i % 8)))
+			features |= BIT(i);
+
+	return features;
+}
+
+static void mic_finalize_features(struct virtio_device *vdev)
+{
+	unsigned int i, bits;
+	struct mic_device_desc __iomem *desc = to_micvdev(vdev)->desc;
+	u8 feature_len = ioread8(&desc->feature_len);
+	/* Second half of bitmap is features we accept. */
+	u8 __iomem *out_features =
+		mic_vq_features(desc) + feature_len;
+
+	/* Give virtio_ring a chance to accept features. */
+	vring_transport_features(vdev);
+
+	memset_io(out_features, 0, feature_len);
+	bits = min_t(unsigned, feature_len,
+		sizeof(vdev->features)) * 8;
+	for (i = 0; i < bits; i++) {
+		if (test_bit(i, vdev->features))
+			iowrite8(ioread8(&out_features[i / 8]) | (1 << (i % 8)),
+				&out_features[i / 8]);
+	}
+}
+
+/*
+ * Reading and writing elements in config space
+ */
+static void mic_get(struct virtio_device *vdev, unsigned int offset,
+		   void *buf, unsigned len)
+{
+	struct mic_device_desc __iomem *desc = to_micvdev(vdev)->desc;
+
+	if (offset + len > ioread8(&desc->config_len))
+		return;
+	memcpy_fromio(buf, mic_vq_configspace(desc) + offset, len);
+}
+
+static void mic_set(struct virtio_device *vdev, unsigned int offset,
+		   const void *buf, unsigned len)
+{
+	struct mic_device_desc __iomem *desc = to_micvdev(vdev)->desc;
+
+	if (offset + len > ioread8(&desc->config_len))
+		return;
+	memcpy_toio(mic_vq_configspace(desc) + offset, buf, len);
+}
+
+/*
+ * The operations to get and set the status word just access the status
+ * field of the device descriptor. set_status also interrupts the host
+ * to tell about status changes.
+ */
+static u8 mic_get_status(struct virtio_device *vdev)
+{
+	return ioread8(&to_micvdev(vdev)->desc->status);
+}
+
+static void mic_set_status(struct virtio_device *vdev, u8 status)
+{
+	struct mic_vdev *mvdev = to_micvdev(vdev);
+	if (!status)
+		return;
+	iowrite8(status, &mvdev->desc->status);
+	mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db);
+}
+
+/* Inform host on a virtio device reset and wait for ack from host */
+static void mic_reset_inform_host(struct virtio_device *vdev)
+{
+	struct mic_vdev *mvdev = to_micvdev(vdev);
+	struct mic_device_ctrl __iomem *dc = mvdev->dc;
+	int retry = 100, i;
+
+	iowrite8(0, &dc->host_ack);
+	iowrite8(1, &dc->vdev_reset);
+	mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db);
+
+	/* Wait till host completes all card accesses and acks the reset */
+	for (i = retry; i--;) {
+		if (ioread8(&dc->host_ack))
+			break;
+		msleep(100);
+	};
+
+	dev_dbg(mic_dev(mvdev), "%s: retry: %d\n", __func__, retry);
+
+	/* Reset status to 0 in case we timed out */
+	iowrite8(0, &mvdev->desc->status);
+}
+
+static void mic_reset(struct virtio_device *vdev)
+{
+	struct mic_vdev *mvdev = to_micvdev(vdev);
+
+	dev_dbg(mic_dev(mvdev), "%s: virtio id %d\n",
+		__func__, vdev->id.device);
+
+	mic_reset_inform_host(vdev);
+	complete_all(&mvdev->reset_done);
+}
+
+/*
+ * The virtio_ring code calls this API when it wants to notify the Host.
+ */
+static void mic_notify(struct virtqueue *vq)
+{
+	struct mic_vdev *mvdev = vq->priv;
+
+	mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db);
+}
+
+static void mic_del_vq(struct virtqueue *vq, int n)
+{
+	struct mic_vdev *mvdev = to_micvdev(vq->vdev);
+	struct vring *vr = (struct vring *) (vq + 1);
+
+	free_pages((unsigned long) vr->used,
+		get_order(mvdev->used_size[n]));
+	vring_del_virtqueue(vq);
+	mic_card_unmap(mvdev->mdev, mvdev->vr[n]);
+	mvdev->vr[n] = NULL;
+}
+
+static void mic_del_vqs(struct virtio_device *vdev)
+{
+	struct mic_vdev *mvdev = to_micvdev(vdev);
+	struct virtqueue *vq, *n;
+	int idx = 0;
+
+	dev_dbg(mic_dev(mvdev), "%s\n", __func__);
+
+	list_for_each_entry_safe(vq, n, &vdev->vqs, list)
+		mic_del_vq(vq, idx++);
+}
+
+/*
+ * This routine will assign vring's allocated in host/io memory. Code in
+ * virtio_ring.c however continues to access this io memory as if it were local
+ * memory without io accessors.
+ */
+static struct virtqueue *mic_find_vq(struct virtio_device *vdev,
+				     unsigned index,
+				     void (*callback)(struct virtqueue *vq),
+				     const char *name)
+{
+	struct mic_vdev *mvdev = to_micvdev(vdev);
+	struct mic_vqconfig __iomem *vqconfig;
+	struct mic_vqconfig config;
+	struct virtqueue *vq;
+	void __iomem *va;
+	struct _mic_vring_info __iomem *info;
+	void *used;
+	int vr_size, _vr_size, err, magic;
+	struct vring *vr;
+	u8 type = ioread8(&mvdev->desc->type);
+
+	if (index >= ioread8(&mvdev->desc->num_vq))
+		return ERR_PTR(-ENOENT);
+
+	if (!name)
+		return ERR_PTR(-ENOENT);
+
+	/* First assign the vring's allocated in host memory */
+	vqconfig = mic_vq_config(mvdev->desc) + index;
+	memcpy_fromio(&config, vqconfig, sizeof(config));
+	_vr_size = vring_size(config.num, MIC_VIRTIO_RING_ALIGN);
+	vr_size = PAGE_ALIGN(_vr_size + sizeof(struct _mic_vring_info));
+	va = mic_card_map(mvdev->mdev, config.address, vr_size);
+	if (!va)
+		return ERR_PTR(-ENOMEM);
+	mvdev->vr[index] = va;
+	memset_io(va, 0x0, _vr_size);
+	vq = vring_new_virtqueue(index,
+				config.num, MIC_VIRTIO_RING_ALIGN, vdev,
+				false,
+				va, mic_notify, callback, name);
+	if (!vq) {
+		err = -ENOMEM;
+		goto unmap;
+	}
+	info = va + _vr_size;
+	magic = ioread32(&info->magic);
+
+	if (WARN(magic != MIC_MAGIC + type + index, "magic mismatch")) {
+		err = -EIO;
+		goto unmap;
+	}
+
+	/* Allocate and reassign used ring now */
+	mvdev->used_size[index] = PAGE_ALIGN(sizeof(__u16) * 3 +
+			sizeof(struct vring_used_elem) * config.num);
+	used = (void *) __get_free_pages(GFP_KERNEL | __GFP_ZERO,
+				get_order(mvdev->used_size[index]));
+	if (!used) {
+		err = -ENOMEM;
+		dev_err(mic_dev(mvdev), "%s %d err %d\n",
+			__func__, __LINE__, err);
+		goto del_vq;
+	}
+	iowrite64(virt_to_phys(used), &vqconfig->used_address);
+
+	/*
+	 * To reassign the used ring here we are directly accessing
+	 * struct vring_virtqueue which is a private data structure
+	 * in virtio_ring.c. At the minimum, a BUILD_BUG_ON() in
+	 * vring_new_virtqueue() would ensure that
+	 *  (&vq->vring == (struct vring *) (&vq->vq + 1));
+	 */
+	vr = (struct vring *) (vq + 1);
+	vr->used = used;
+
+	vq->priv = mvdev;
+	return vq;
+del_vq:
+	vring_del_virtqueue(vq);
+unmap:
+	mic_card_unmap(mvdev->mdev, mvdev->vr[index]);
+	return ERR_PTR(err);
+}
+
+static int mic_find_vqs(struct virtio_device *vdev, unsigned nvqs,
+			struct virtqueue *vqs[],
+			vq_callback_t *callbacks[],
+			const char *names[])
+{
+	struct mic_vdev *mvdev = to_micvdev(vdev);
+	struct mic_device_ctrl __iomem *dc = mvdev->dc;
+	int i, err, retry = 100;
+
+	/* We must have this many virtqueues. */
+	if (nvqs > ioread8(&mvdev->desc->num_vq))
+		return -ENOENT;
+
+	for (i = 0; i < nvqs; ++i) {
+		dev_dbg(mic_dev(mvdev), "%s: %d: %s\n",
+			__func__, i, names[i]);
+		vqs[i] = mic_find_vq(vdev, i, callbacks[i], names[i]);
+		if (IS_ERR(vqs[i])) {
+			err = PTR_ERR(vqs[i]);
+			goto error;
+		}
+	}
+
+	iowrite8(1, &dc->used_address_updated);
+	/*
+	 * Send an interrupt to the host to inform it that used
+	 * rings have been re-assigned.
+	 */
+	mic_send_intr(mvdev->mdev, mvdev->c2h_vdev_db);
+	for (i = retry; i--;) {
+		if (!ioread8(&dc->used_address_updated))
+			break;
+		msleep(100);
+	};
+
+	dev_dbg(mic_dev(mvdev), "%s: retry: %d\n", __func__, retry);
+	if (!retry) {
+		err = -ENODEV;
+		goto error;
+	}
+
+	return 0;
+error:
+	mic_del_vqs(vdev);
+	return err;
+}
+
+/*
+ * The config ops structure as defined by virtio config
+ */
+static struct virtio_config_ops mic_vq_config_ops = {
+	.get_features = mic_get_features,
+	.finalize_features = mic_finalize_features,
+	.get = mic_get,
+	.set = mic_set,
+	.get_status = mic_get_status,
+	.set_status = mic_set_status,
+	.reset = mic_reset,
+	.find_vqs = mic_find_vqs,
+	.del_vqs = mic_del_vqs,
+};
+
+static irqreturn_t
+mic_virtio_intr_handler(int irq, void *data)
+{
+	struct mic_vdev *mvdev = data;
+	struct virtqueue *vq;
+
+	mic_ack_interrupt(mvdev->mdev);
+	list_for_each_entry(vq, &mvdev->vdev.vqs, list)
+		vring_interrupt(0, vq);
+
+	return IRQ_HANDLED;
+}
+
+static void mic_virtio_release_dev(struct device *_d)
+{
+	/*
+	 * No need for a release method similar to virtio PCI.
+	 * Provide an empty one to avoid getting a warning from core.
+	 */
+}
+
+/*
+ * adds a new device and register it with virtio
+ * appropriate drivers are loaded by the device model
+ */
+static int mic_add_device(struct mic_device_desc __iomem *d,
+	unsigned int offset, struct mic_driver *mdrv)
+{
+	struct mic_vdev *mvdev;
+	int ret;
+	int virtio_db;
+	u8 type = ioread8(&d->type);
+
+	mvdev = kzalloc(sizeof(*mvdev), GFP_KERNEL);
+	if (!mvdev) {
+		dev_err(mdrv->dev, "Cannot allocate mic dev %u type %u\n",
+			offset, type);
+		return -ENOMEM;
+	}
+
+	mvdev->mdev = &mdrv->mdev;
+	mvdev->vdev.dev.parent = mdrv->dev;
+	mvdev->vdev.dev.release = mic_virtio_release_dev;
+	mvdev->vdev.id.device = type;
+	mvdev->vdev.config = &mic_vq_config_ops;
+	mvdev->desc = d;
+	mvdev->dc = (void __iomem *)d + mic_aligned_desc_size(d);
+	init_completion(&mvdev->reset_done);
+
+	virtio_db = mic_next_card_db();
+	mvdev->virtio_cookie = mic_request_card_irq(mic_virtio_intr_handler,
+			"virtio intr", mvdev, virtio_db);
+	if (IS_ERR(mvdev->virtio_cookie)) {
+		ret = PTR_ERR(mvdev->virtio_cookie);
+		goto kfree;
+	}
+	iowrite8((u8)virtio_db, &mvdev->dc->h2c_vdev_db);
+	mvdev->c2h_vdev_db = ioread8(&mvdev->dc->c2h_vdev_db);
+
+	ret = register_virtio_device(&mvdev->vdev);
+	if (ret) {
+		dev_err(mic_dev(mvdev),
+			"Failed to register mic device %u type %u\n",
+			offset, type);
+		goto free_irq;
+	}
+	iowrite64((u64)mvdev, &mvdev->dc->vdev);
+	dev_dbg(mic_dev(mvdev), "%s: registered mic device %u type %u mvdev %p\n",
+		__func__, offset, type, mvdev);
+
+	return 0;
+
+free_irq:
+	mic_free_card_irq(mvdev->virtio_cookie, mvdev);
+kfree:
+	kfree(mvdev);
+	return ret;
+}
+
+/*
+ * match for a mic device with a specific desc pointer
+ */
+static int mic_match_desc(struct device *dev, void *data)
+{
+	struct virtio_device *vdev = dev_to_virtio(dev);
+	struct mic_vdev *mvdev = to_micvdev(vdev);
+
+	return mvdev->desc == (void __iomem *)data;
+}
+
+static void mic_handle_config_change(struct mic_device_desc __iomem *d,
+	unsigned int offset, struct mic_driver *mdrv)
+{
+	struct mic_device_ctrl __iomem *dc
+		= (void __iomem *)d + mic_aligned_desc_size(d);
+	struct mic_vdev *mvdev = (struct mic_vdev *)ioread64(&dc->vdev);
+	struct virtio_driver *drv;
+
+	if (ioread8(&dc->config_change) != MIC_VIRTIO_PARAM_CONFIG_CHANGED)
+		return;
+
+	dev_dbg(mdrv->dev, "%s %d\n", __func__, __LINE__);
+	drv = container_of(mvdev->vdev.dev.driver,
+				struct virtio_driver, driver);
+	if (drv->config_changed)
+		drv->config_changed(&mvdev->vdev);
+	iowrite8(1, &dc->guest_ack);
+}
+
+/*
+ * removes a virtio device if a hot remove event has been
+ * requested by the host.
+ */
+static int mic_remove_device(struct mic_device_desc __iomem *d,
+	unsigned int offset, struct mic_driver *mdrv)
+{
+	struct mic_device_ctrl __iomem *dc
+		= (void __iomem *)d + mic_aligned_desc_size(d);
+	struct mic_vdev *mvdev = (struct mic_vdev *)ioread64(&dc->vdev);
+	u8 status;
+	int ret = -1;
+
+	if (ioread8(&dc->config_change) == MIC_VIRTIO_PARAM_DEV_REMOVE) {
+		dev_dbg(mdrv->dev,
+			"%s %d config_change %d type %d mvdev %p\n",
+			__func__, __LINE__,
+			ioread8(&dc->config_change), ioread8(&d->type), mvdev);
+
+		status = ioread8(&d->status);
+		INIT_COMPLETION(mvdev->reset_done);
+		unregister_virtio_device(&mvdev->vdev);
+		mic_free_card_irq(mvdev->virtio_cookie, mvdev);
+		if (status & VIRTIO_CONFIG_S_DRIVER_OK)
+			wait_for_completion(&mvdev->reset_done);
+		kfree(mvdev);
+		iowrite8(1, &dc->guest_ack);
+		dev_dbg(mdrv->dev, "%s %d guest_ack %d\n",
+			__func__, __LINE__, ioread8(&dc->guest_ack));
+		ret = 0;
+	}
+
+	return ret;
+}
+
+#define REMOVE_DEVICES true
+
+static void mic_scan_devices(struct mic_driver *mdrv, bool remove)
+{
+	s8 type;
+	unsigned int i;
+	struct mic_device_desc __iomem *d;
+	struct mic_device_ctrl __iomem *dc;
+	struct device *dev;
+	int ret;
+
+	for (i = mic_aligned_size(struct mic_bootparam);
+		i < MIC_DP_SIZE; i += mic_total_desc_size(d)) {
+		d = mdrv->dp + i;
+		dc = (void __iomem *)d + mic_aligned_desc_size(d);
+		/*
+		 * This read barrier is paired with the corresponding write
+		 * barrier on the host which is inserted before adding or
+		 * removing a virtio device descriptor, by updating the type.
+		 */
+		rmb();
+		type = ioread8(&d->type);
+
+		/* end of list */
+		if (type == 0)
+			break;
+
+		if (type == -1)
+			continue;
+
+		/* device already exists */
+		dev = device_find_child(mdrv->dev, d, mic_match_desc);
+		if (dev) {
+			if (remove)
+				iowrite8(MIC_VIRTIO_PARAM_DEV_REMOVE,
+					&dc->config_change);
+			put_device(dev);
+			mic_handle_config_change(d, i, mdrv);
+			ret = mic_remove_device(d, i, mdrv);
+			if (!ret && !remove)
+				iowrite8(-1, &d->type);
+			if (remove) {
+				iowrite8(0, &dc->config_change);
+				iowrite8(0, &dc->guest_ack);
+			}
+			continue;
+		}
+
+		/* new device */
+		dev_dbg(mdrv->dev, "%s %d Adding new virtio device %p\n",
+				__func__, __LINE__, d);
+		if (!remove)
+			mic_add_device(d, i, mdrv);
+	}
+}
+
+/*
+ * mic_hotplug_device tries to find changes in the device page.
+ */
+static void mic_hotplug_devices(struct work_struct *work)
+{
+	struct mic_driver *mdrv = container_of(work,
+		struct mic_driver, hotplug_work);
+
+	mic_scan_devices(mdrv, !REMOVE_DEVICES);
+}
+
+/*
+ * Interrupt handler for hot plug/config changes etc.
+ */
+static irqreturn_t
+mic_extint_handler(int irq, void *data)
+{
+	struct mic_driver *mdrv = (struct mic_driver *)data;
+
+	dev_dbg(mdrv->dev, "%s %d hotplug work\n",
+		__func__, __LINE__);
+	mic_ack_interrupt(&mdrv->mdev);
+	schedule_work(&mdrv->hotplug_work);
+	return IRQ_HANDLED;
+}
+
+/*
+ * Init function for virtio
+ */
+int mic_devices_init(struct mic_driver *mdrv)
+{
+	int rc;
+	struct mic_bootparam __iomem *bootparam;
+	int config_db;
+
+	INIT_WORK(&mdrv->hotplug_work, mic_hotplug_devices);
+	mic_scan_devices(mdrv, !REMOVE_DEVICES);
+
+	config_db = mic_next_card_db();
+	virtio_config_cookie = mic_request_card_irq(mic_extint_handler,
+			"virtio_config_intr", mdrv, config_db);
+	if (IS_ERR(virtio_config_cookie)) {
+		rc = PTR_ERR(virtio_config_cookie);
+		goto exit;
+	}
+
+	bootparam = mdrv->dp;
+	iowrite8(config_db, &bootparam->h2c_config_db);
+	return 0;
+exit:
+	return rc;
+}
+
+/*
+ * Uninit function for virtio
+ */
+void mic_devices_uninit(struct mic_driver *mdrv)
+{
+	struct mic_bootparam __iomem *bootparam = mdrv->dp;
+	iowrite8(-1, &bootparam->h2c_config_db);
+	mic_free_card_irq(virtio_config_cookie, mdrv);
+	flush_work(&mdrv->hotplug_work);
+	mic_scan_devices(mdrv, REMOVE_DEVICES);
+}
diff --git a/drivers/misc/mic/card/mic_virtio.h b/drivers/misc/mic/card/mic_virtio.h
new file mode 100644
index 000000000000..2c5c22c93ba8
--- /dev/null
+++ b/drivers/misc/mic/card/mic_virtio.h
@@ -0,0 +1,77 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Disclaimer: The codes contained in these modules may be specific to
+ * the Intel Software Development Platform codenamed: Knights Ferry, and
+ * the Intel product codenamed: Knights Corner, and are not backward
+ * compatible with other Intel products. Additionally, Intel will NOT
+ * support the codes or instruction set in future products.
+ *
+ * Intel MIC Card driver.
+ *
+ */
+#ifndef __MIC_CARD_VIRTIO_H
+#define __MIC_CARD_VIRTIO_H
+
+#include <linux/mic_common.h>
+#include "mic_device.h"
+
+/*
+ * 64 bit I/O access
+ */
+#ifndef ioread64
+#define ioread64 readq
+#endif
+#ifndef iowrite64
+#define iowrite64 writeq
+#endif
+
+static inline unsigned mic_desc_size(struct mic_device_desc __iomem *desc)
+{
+	return mic_aligned_size(*desc)
+		+ ioread8(&desc->num_vq) * mic_aligned_size(struct mic_vqconfig)
+		+ ioread8(&desc->feature_len) * 2
+		+ ioread8(&desc->config_len);
+}
+
+static inline struct mic_vqconfig __iomem *
+mic_vq_config(struct mic_device_desc __iomem *desc)
+{
+	return (struct mic_vqconfig __iomem *)(desc + 1);
+}
+
+static inline __u8 __iomem *
+mic_vq_features(struct mic_device_desc __iomem *desc)
+{
+	return (__u8 __iomem *)(mic_vq_config(desc) + ioread8(&desc->num_vq));
+}
+
+static inline __u8 __iomem *
+mic_vq_configspace(struct mic_device_desc __iomem *desc)
+{
+	return mic_vq_features(desc) + ioread8(&desc->feature_len) * 2;
+}
+static inline unsigned mic_total_desc_size(struct mic_device_desc __iomem *desc)
+{
+	return mic_aligned_desc_size(desc) +
+		mic_aligned_size(struct mic_device_ctrl);
+}
+
+int mic_devices_init(struct mic_driver *mdrv);
+void mic_devices_uninit(struct mic_driver *mdrv);
+
+#endif
-- 
cgit 


From 8d49751580db804a02caf6a5b7cebe2ff26c0d7e Mon Sep 17 00:00:00 2001
From: Caz Yokoyama <Caz.Yokoyama@intel.com>
Date: Thu, 5 Sep 2013 16:42:39 -0700
Subject: Sample Implementation of Intel MIC User Space Daemon.

This patch introduces a sample user space daemon which
implements the virtio device backends on the host. The daemon
creates/removes/configures virtio device backends by communicating with
the Intel MIC Host Driver. The virtio devices currently supported are
virtio net, virtio console and virtio block. Virtio net supports TSO/GSO.
The daemon also monitors card shutdown status and takes appropriate actions
like killing the virtio backends and resetting the card upon card shutdown
and crashes.

Co-author: Ashutosh Dixit <ashutosh.dixit@intel.com>
Co-author: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Caz Yokoyama <Caz.Yokoyama@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Harshavardhan R Kharche <harshavardhan.r.kharche@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Acked-by: Yaozu (Eddie) Dong <eddie.dong@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/mic/mic_overview.txt |   49 ++
 Documentation/mic/mpssd/.gitignore |    1 +
 Documentation/mic/mpssd/Makefile   |   19 +
 Documentation/mic/mpssd/micctrl    |  173 ++++
 Documentation/mic/mpssd/mpss       |  202 +++++
 Documentation/mic/mpssd/mpssd.c    | 1701 ++++++++++++++++++++++++++++++++++++
 Documentation/mic/mpssd/mpssd.h    |  100 +++
 Documentation/mic/mpssd/sysfs.c    |  102 +++
 8 files changed, 2347 insertions(+)
 create mode 100644 Documentation/mic/mic_overview.txt
 create mode 100644 Documentation/mic/mpssd/.gitignore
 create mode 100644 Documentation/mic/mpssd/Makefile
 create mode 100755 Documentation/mic/mpssd/micctrl
 create mode 100755 Documentation/mic/mpssd/mpss
 create mode 100644 Documentation/mic/mpssd/mpssd.c
 create mode 100644 Documentation/mic/mpssd/mpssd.h
 create mode 100644 Documentation/mic/mpssd/sysfs.c

diff --git a/Documentation/mic/mic_overview.txt b/Documentation/mic/mic_overview.txt
new file mode 100644
index 000000000000..c4424ed1b746
--- /dev/null
+++ b/Documentation/mic/mic_overview.txt
@@ -0,0 +1,49 @@
+An Intel MIC X100 device is a PCIe form factor add-in coprocessor
+card based on the Intel Many Integrated Core (MIC) architecture
+that runs a Linux OS. It is a PCIe endpoint in a platform and therefore
+implements the three required standard address spaces i.e. configuration,
+memory and I/O. The host OS loads a device driver as is typical for
+PCIe devices. The card itself runs a bootstrap after reset that
+transfers control to the card OS downloaded from the host driver.
+The card OS as shipped by Intel is a Linux kernel with modifications
+for the X100 devices.
+
+Since it is a PCIe card, it does not have the ability to host hardware
+devices for networking, storage and console. We provide these devices
+on X100 coprocessors thus enabling a self-bootable equivalent environment
+for applications. A key benefit of our solution is that it leverages
+the standard virtio framework for network, disk and console devices,
+though in our case the virtio framework is used across a PCIe bus.
+
+Here is a block diagram of the various components described above. The
+virtio backends are situated on the host rather than the card given better
+single threaded performance for the host compared to MIC, the ability of
+the host to initiate DMA's to/from the card using the MIC DMA engine and
+the fact that the virtio block storage backend can only be on the host.
+
+                              |
+       +----------+           |             +----------+
+       | Card OS  |           |             | Host OS  |
+       +----------+           |             +----------+
+                              |
++-------+ +--------+ +------+ | +---------+  +--------+ +--------+
+| Virtio| |Virtio  | |Virtio| | |Virtio   |  |Virtio  | |Virtio  |
+| Net   | |Console | |Block | | |Net      |  |Console | |Block   |
+| Driver| |Driver  | |Driver| | |backend  |  |backend | |backend |
++-------+ +--------+ +------+ | +---------+  +--------+ +--------+
+    |         |         |     |      |            |         |
+    |         |         |     |User  |            |         |
+    |         |         |     |------|------------|---------|-------
+    +-------------------+     |Kernel +--------------------------+
+              |               |       | Virtio over PCIe IOCTLs  |
+              |               |       +--------------------------+
+      +--------------+        |                   |
+      |Intel MIC     |        |            +---------------+
+      |Card Driver   |        |            |Intel MIC      |
+      +--------------+        |            |Host Driver    |
+              |               |            +---------------+
+              |               |                   |
+     +-------------------------------------------------------------+
+     |                                                             |
+     |                    PCIe Bus                                 |
+     +-------------------------------------------------------------+
diff --git a/Documentation/mic/mpssd/.gitignore b/Documentation/mic/mpssd/.gitignore
new file mode 100644
index 000000000000..8b7c72f07c92
--- /dev/null
+++ b/Documentation/mic/mpssd/.gitignore
@@ -0,0 +1 @@
+mpssd
diff --git a/Documentation/mic/mpssd/Makefile b/Documentation/mic/mpssd/Makefile
new file mode 100644
index 000000000000..eb860a7d152e
--- /dev/null
+++ b/Documentation/mic/mpssd/Makefile
@@ -0,0 +1,19 @@
+#
+# Makefile - Intel MIC User Space Tools.
+# Copyright(c) 2013, Intel Corporation.
+#
+ifdef DEBUG
+CFLAGS += $(USERWARNFLAGS) -I. -g -Wall -DDEBUG=$(DEBUG)
+else
+CFLAGS += $(USERWARNFLAGS) -I. -g -Wall
+endif
+
+mpssd: mpssd.o sysfs.o
+	$(CC) $(CFLAGS) -o $@ $^ -lpthread
+
+install:
+	install mpssd /usr/sbin/mpssd
+	install micctrl /usr/sbin/micctrl
+
+clean:
+	rm -f mpssd *.o
diff --git a/Documentation/mic/mpssd/micctrl b/Documentation/mic/mpssd/micctrl
new file mode 100755
index 000000000000..8f2629b41c5f
--- /dev/null
+++ b/Documentation/mic/mpssd/micctrl
@@ -0,0 +1,173 @@
+#!/bin/bash
+# Intel MIC Platform Software Stack (MPSS)
+#
+# Copyright(c) 2013 Intel Corporation.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License, version 2, as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# The full GNU General Public License is included in this distribution in
+# the file called "COPYING".
+#
+# Intel MIC User Space Tools.
+#
+# micctrl - Controls MIC boot/start/stop.
+#
+# chkconfig: 2345 95 05
+# description: start MPSS stack processing.
+#
+### BEGIN INIT INFO
+# Provides: micctrl
+### END INIT INFO
+
+# Source function library.
+. /etc/init.d/functions
+
+sysfs="/sys/class/mic"
+
+_status()
+{
+	f=$sysfs/$1
+	echo -e $1 state: "`cat $f/state`" shutdown_status: "`cat $f/shutdown_status`"
+}
+
+status()
+{
+	if [ "`echo $1 | head -c3`" == "mic" ]; then
+		_status $1
+		return $?
+	fi
+	for f in $sysfs/*
+	do
+		_status `basename $f`
+		RETVAL=$?
+		[ $RETVAL -ne 0 ] && return $RETVAL
+	done
+	return 0
+}
+
+_reset()
+{
+	f=$sysfs/$1
+	echo reset > $f/state
+}
+
+reset()
+{
+	if [ "`echo $1 | head -c3`" == "mic" ]; then
+		_reset $1
+		return $?
+	fi
+	for f in $sysfs/*
+	do
+		_reset `basename $f`
+		RETVAL=$?
+		[ $RETVAL -ne 0 ] && return $RETVAL
+	done
+	return 0
+}
+
+_boot()
+{
+	f=$sysfs/$1
+	echo "linux" > $f/bootmode
+	echo "mic/uos.img" > $f/firmware
+	echo "mic/$1.image" > $f/ramdisk
+	echo "boot" > $f/state
+}
+
+boot()
+{
+	if [ "`echo $1 | head -c3`" == "mic" ]; then
+		_boot $1
+		return $?
+	fi
+	for f in $sysfs/*
+	do
+		_boot `basename $f`
+		RETVAL=$?
+		[ $RETVAL -ne 0 ] && return $RETVAL
+	done
+	return 0
+}
+
+_shutdown()
+{
+	f=$sysfs/$1
+	echo shutdown > $f/state
+}
+
+shutdown()
+{
+	if [ "`echo $1 | head -c3`" == "mic" ]; then
+		_shutdown $1
+		return $?
+	fi
+	for f in $sysfs/*
+	do
+		_shutdown `basename $f`
+		RETVAL=$?
+		[ $RETVAL -ne 0 ] && return $RETVAL
+	done
+	return 0
+}
+
+_wait()
+{
+	f=$sysfs/$1
+	while [ "`cat $f/state`" != "offline" -a "`cat $f/state`" != "online" ]
+	do
+		sleep 1
+		echo -e "Waiting for $1 to go offline"
+	done
+}
+
+wait()
+{
+	if [ "`echo $1 | head -c3`" == "mic" ]; then
+		_wait $1
+		return $?
+	fi
+	# Wait for the cards to go offline
+	for f in $sysfs/*
+	do
+		_wait `basename $f`
+		RETVAL=$?
+		[ $RETVAL -ne 0 ] && return $RETVAL
+	done
+	return 0
+}
+
+if [ ! -d "$sysfs" ]; then
+	echo -e $"Module unloaded "
+	exit 3
+fi
+
+case $1 in
+	-s)
+		status $2
+		;;
+	-r)
+		reset $2
+		;;
+	-b)
+		boot $2
+		;;
+	-S)
+		shutdown $2
+		;;
+	-w)
+		wait $2
+		;;
+	*)
+		echo $"Usage: $0 {-s (status) |-r (reset) |-b (boot) |-S (shutdown) |-w (wait)}"
+		exit 2
+esac
+
+exit $?
diff --git a/Documentation/mic/mpssd/mpss b/Documentation/mic/mpssd/mpss
new file mode 100755
index 000000000000..3136c68dad0b
--- /dev/null
+++ b/Documentation/mic/mpssd/mpss
@@ -0,0 +1,202 @@
+#!/bin/bash
+# Intel MIC Platform Software Stack (MPSS)
+#
+# Copyright(c) 2013 Intel Corporation.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License, version 2, as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# The full GNU General Public License is included in this distribution in
+# the file called "COPYING".
+#
+# Intel MIC User Space Tools.
+#
+# mpss	Start mpssd.
+#
+# chkconfig: 2345 95 05
+# description: start MPSS stack processing.
+#
+### BEGIN INIT INFO
+# Provides: mpss
+# Required-Start:
+# Required-Stop:
+# Short-Description: MPSS stack control
+# Description: MPSS stack control
+### END INIT INFO
+
+# Source function library.
+. /etc/init.d/functions
+
+exec=/usr/sbin/mpssd
+sysfs="/sys/class/mic"
+
+start()
+{
+	[ -x $exec ] || exit 5
+
+	if [ "`ps -e | awk '{print $4}' | grep mpssd | head -1`" = "mpssd" ]; then
+		echo -e $"MPSSD already running! "
+		success
+		echo
+		return 0
+	fi
+
+	echo -e $"Starting MPSS Stack"
+	echo -e $"Loading MIC_HOST Module"
+
+	# Ensure the driver is loaded
+	if [ ! -d "$sysfs" ]; then
+		modprobe mic_host
+		RETVAL=$?
+		if [ $RETVAL -ne 0 ]; then
+			failure
+			echo
+			return $RETVAL
+		fi
+	fi
+
+	# Start the daemon
+	echo -n $"Starting MPSSD "
+	$exec
+	RETVAL=$?
+	if [ $RETVAL -ne 0 ]; then
+		failure
+		echo
+		return $RETVAL
+	fi
+	success
+	echo
+
+	sleep 5
+
+	# Boot the cards
+	micctrl -b
+
+	# Wait till ping works
+	for f in $sysfs/*
+	do
+		count=100
+		ipaddr=`cat $f/cmdline`
+		ipaddr=${ipaddr#*address,}
+		ipaddr=`echo $ipaddr | cut -d, -f1 | cut -d\; -f1`
+		while [ $count -ge 0 ]
+		do
+			echo -e "Pinging "`basename $f`" "
+			ping -c 1 $ipaddr &> /dev/null
+			RETVAL=$?
+			if [ $RETVAL -eq 0 ]; then
+				success
+				break
+			fi
+			sleep 1
+			count=`expr $count - 1`
+		done
+		[ $RETVAL -ne 0 ] && failure || success
+		echo
+	done
+	return $RETVAL
+}
+
+stop()
+{
+	echo -e $"Shutting down MPSS Stack: "
+
+	# Bail out if module is unloaded
+	if [ ! -d "$sysfs" ]; then
+		echo -n $"Module unloaded "
+		success
+		echo
+		return 0
+	fi
+
+	# Shut down the cards.
+	micctrl -S
+
+	# Wait for the cards to go offline
+	for f in $sysfs/*
+	do
+		while [ "`cat $f/state`" != "offline" ]
+		do
+			sleep 1
+			echo -e "Waiting for "`basename $f`" to go offline"
+		done
+	done
+
+	# Display the status of the cards
+	micctrl -s
+
+	# Kill MPSSD now
+	echo -n $"Killing MPSSD"
+	killall -9 mpssd 2>/dev/null
+	RETVAL=$?
+	[ $RETVAL -ne 0 ] && failure || success
+	echo
+	return $RETVAL
+}
+
+restart()
+{
+	stop
+	sleep 5
+	start
+}
+
+status()
+{
+	micctrl -s
+	if [ "`ps -e | awk '{print $4}' | grep mpssd | head -n 1`" = "mpssd" ]; then
+		echo "mpssd is running"
+	else
+		echo "mpssd is stopped"
+	fi
+	return 0
+}
+
+unload()
+{
+	if [ ! -d "$sysfs" ]; then
+		echo -n $"No MIC_HOST Module: "
+		success
+		echo
+		return
+	fi
+
+	stop
+
+	sleep 5
+	echo -n $"Removing MIC_HOST Module: "
+	modprobe -r mic_host
+	RETVAL=$?
+	[ $RETVAL -ne 0 ] && failure || success
+	echo
+	return $RETVAL
+}
+
+case $1 in
+	start)
+		start
+		;;
+	stop)
+		stop
+		;;
+	restart)
+		restart
+		;;
+	status)
+		status
+		;;
+	unload)
+		unload
+		;;
+	*)
+		echo $"Usage: $0 {start|stop|restart|status|unload}"
+		exit 2
+esac
+
+exit $?
diff --git a/Documentation/mic/mpssd/mpssd.c b/Documentation/mic/mpssd/mpssd.c
new file mode 100644
index 000000000000..8064804cdac3
--- /dev/null
+++ b/Documentation/mic/mpssd/mpssd.c
@@ -0,0 +1,1701 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC User Space Tools.
+ */
+
+#define _GNU_SOURCE
+
+#include <stdlib.h>
+#include <fcntl.h>
+#include <getopt.h>
+#include <assert.h>
+#include <unistd.h>
+#include <stdbool.h>
+#include <signal.h>
+#include <poll.h>
+#include <features.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <sys/socket.h>
+#include <linux/virtio_ring.h>
+#include <linux/virtio_net.h>
+#include <linux/virtio_console.h>
+#include <linux/virtio_blk.h>
+#include <linux/version.h>
+#include "mpssd.h"
+#include <linux/mic_ioctl.h>
+#include <linux/mic_common.h>
+
+static void init_mic(struct mic_info *mic);
+
+static FILE *logfp;
+static struct mic_info mic_list;
+
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
+
+#define min_t(type, x, y) ({				\
+		type __min1 = (x);                      \
+		type __min2 = (y);                      \
+		__min1 < __min2 ? __min1 : __min2; })
+
+/* align addr on a size boundary - adjust address up/down if needed */
+#define _ALIGN_DOWN(addr, size)  ((addr)&(~((size)-1)))
+#define _ALIGN_UP(addr, size)    _ALIGN_DOWN(addr + size - 1, size)
+
+/* align addr on a size boundary - adjust address up if needed */
+#define _ALIGN(addr, size)     _ALIGN_UP(addr, size)
+
+/* to align the pointer to the (next) page boundary */
+#define PAGE_ALIGN(addr)        _ALIGN(addr, PAGE_SIZE)
+
+#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
+
+#define GSO_ENABLED		1
+#define MAX_GSO_SIZE		(64 * 1024)
+#define ETH_H_LEN		14
+#define MAX_NET_PKT_SIZE	(_ALIGN_UP(MAX_GSO_SIZE + ETH_H_LEN, 64))
+#define MIC_DEVICE_PAGE_END	0x1000
+
+#ifndef VIRTIO_NET_HDR_F_DATA_VALID
+#define VIRTIO_NET_HDR_F_DATA_VALID	2	/* Csum is valid */
+#endif
+
+static struct {
+	struct mic_device_desc dd;
+	struct mic_vqconfig vqconfig[2];
+	__u32 host_features, guest_acknowledgements;
+	struct virtio_console_config cons_config;
+} virtcons_dev_page = {
+	.dd = {
+		.type = VIRTIO_ID_CONSOLE,
+		.num_vq = ARRAY_SIZE(virtcons_dev_page.vqconfig),
+		.feature_len = sizeof(virtcons_dev_page.host_features),
+		.config_len = sizeof(virtcons_dev_page.cons_config),
+	},
+	.vqconfig[0] = {
+		.num = htole16(MIC_VRING_ENTRIES),
+	},
+	.vqconfig[1] = {
+		.num = htole16(MIC_VRING_ENTRIES),
+	},
+};
+
+static struct {
+	struct mic_device_desc dd;
+	struct mic_vqconfig vqconfig[2];
+	__u32 host_features, guest_acknowledgements;
+	struct virtio_net_config net_config;
+} virtnet_dev_page = {
+	.dd = {
+		.type = VIRTIO_ID_NET,
+		.num_vq = ARRAY_SIZE(virtnet_dev_page.vqconfig),
+		.feature_len = sizeof(virtnet_dev_page.host_features),
+		.config_len = sizeof(virtnet_dev_page.net_config),
+	},
+	.vqconfig[0] = {
+		.num = htole16(MIC_VRING_ENTRIES),
+	},
+	.vqconfig[1] = {
+		.num = htole16(MIC_VRING_ENTRIES),
+	},
+#if GSO_ENABLED
+		.host_features = htole32(
+		1 << VIRTIO_NET_F_CSUM |
+		1 << VIRTIO_NET_F_GSO |
+		1 << VIRTIO_NET_F_GUEST_TSO4 |
+		1 << VIRTIO_NET_F_GUEST_TSO6 |
+		1 << VIRTIO_NET_F_GUEST_ECN |
+		1 << VIRTIO_NET_F_GUEST_UFO),
+#else
+		.host_features = 0,
+#endif
+};
+
+static const char *mic_config_dir = "/etc/sysconfig/mic";
+static const char *virtblk_backend = "VIRTBLK_BACKEND";
+static struct {
+	struct mic_device_desc dd;
+	struct mic_vqconfig vqconfig[1];
+	__u32 host_features, guest_acknowledgements;
+	struct virtio_blk_config blk_config;
+} virtblk_dev_page = {
+	.dd = {
+		.type = VIRTIO_ID_BLOCK,
+		.num_vq = ARRAY_SIZE(virtblk_dev_page.vqconfig),
+		.feature_len = sizeof(virtblk_dev_page.host_features),
+		.config_len = sizeof(virtblk_dev_page.blk_config),
+	},
+	.vqconfig[0] = {
+		.num = htole16(MIC_VRING_ENTRIES),
+	},
+	.host_features =
+		htole32(1<<VIRTIO_BLK_F_SEG_MAX),
+	.blk_config = {
+		.seg_max = htole32(MIC_VRING_ENTRIES - 2),
+		.capacity = htole64(0),
+	 }
+};
+
+static char *myname;
+
+static int
+tap_configure(struct mic_info *mic, char *dev)
+{
+	pid_t pid;
+	char *ifargv[7];
+	char ipaddr[IFNAMSIZ];
+	int ret = 0;
+
+	pid = fork();
+	if (pid == 0) {
+		ifargv[0] = "ip";
+		ifargv[1] = "link";
+		ifargv[2] = "set";
+		ifargv[3] = dev;
+		ifargv[4] = "up";
+		ifargv[5] = NULL;
+		mpsslog("Configuring %s\n", dev);
+		ret = execvp("ip", ifargv);
+		if (ret < 0) {
+			mpsslog("%s execvp failed errno %s\n",
+				mic->name, strerror(errno));
+			return ret;
+		}
+	}
+	if (pid < 0) {
+		mpsslog("%s fork failed errno %s\n",
+			mic->name, strerror(errno));
+		return ret;
+	}
+
+	ret = waitpid(pid, NULL, 0);
+	if (ret < 0) {
+		mpsslog("%s waitpid failed errno %s\n",
+			mic->name, strerror(errno));
+		return ret;
+	}
+
+	snprintf(ipaddr, IFNAMSIZ, "172.31.%d.254/24", mic->id);
+
+	pid = fork();
+	if (pid == 0) {
+		ifargv[0] = "ip";
+		ifargv[1] = "addr";
+		ifargv[2] = "add";
+		ifargv[3] = ipaddr;
+		ifargv[4] = "dev";
+		ifargv[5] = dev;
+		ifargv[6] = NULL;
+		mpsslog("Configuring %s ipaddr %s\n", dev, ipaddr);
+		ret = execvp("ip", ifargv);
+		if (ret < 0) {
+			mpsslog("%s execvp failed errno %s\n",
+				mic->name, strerror(errno));
+			return ret;
+		}
+	}
+	if (pid < 0) {
+		mpsslog("%s fork failed errno %s\n",
+			mic->name, strerror(errno));
+		return ret;
+	}
+
+	ret = waitpid(pid, NULL, 0);
+	if (ret < 0) {
+		mpsslog("%s waitpid failed errno %s\n",
+			mic->name, strerror(errno));
+		return ret;
+	}
+	mpsslog("MIC name %s %s %d DONE!\n",
+		mic->name, __func__, __LINE__);
+	return 0;
+}
+
+static int tun_alloc(struct mic_info *mic, char *dev)
+{
+	struct ifreq ifr;
+	int fd, err;
+#if GSO_ENABLED
+	unsigned offload;
+#endif
+	fd = open("/dev/net/tun", O_RDWR);
+	if (fd < 0) {
+		mpsslog("Could not open /dev/net/tun %s\n", strerror(errno));
+		goto done;
+	}
+
+	memset(&ifr, 0, sizeof(ifr));
+
+	ifr.ifr_flags = IFF_TAP | IFF_NO_PI | IFF_VNET_HDR;
+	if (*dev)
+		strncpy(ifr.ifr_name, dev, IFNAMSIZ);
+
+	err = ioctl(fd, TUNSETIFF, (void *) &ifr);
+	if (err < 0) {
+		mpsslog("%s %s %d TUNSETIFF failed %s\n",
+			mic->name, __func__, __LINE__, strerror(errno));
+		close(fd);
+		return err;
+	}
+#if GSO_ENABLED
+	offload = TUN_F_CSUM | TUN_F_TSO4 | TUN_F_TSO6 |
+		TUN_F_TSO_ECN | TUN_F_UFO;
+
+	err = ioctl(fd, TUNSETOFFLOAD, offload);
+	if (err < 0) {
+		mpsslog("%s %s %d TUNSETOFFLOAD failed %s\n",
+			mic->name, __func__, __LINE__, strerror(errno));
+		close(fd);
+		return err;
+	}
+#endif
+	strcpy(dev, ifr.ifr_name);
+	mpsslog("Created TAP %s\n", dev);
+done:
+	return fd;
+}
+
+#define NET_FD_VIRTIO_NET 0
+#define NET_FD_TUN 1
+#define MAX_NET_FD 2
+
+static void set_dp(struct mic_info *mic, int type, void *dp)
+{
+	switch (type) {
+	case VIRTIO_ID_CONSOLE:
+		mic->mic_console.console_dp = dp;
+		return;
+	case VIRTIO_ID_NET:
+		mic->mic_net.net_dp = dp;
+		return;
+	case VIRTIO_ID_BLOCK:
+		mic->mic_virtblk.block_dp = dp;
+		return;
+	}
+	mpsslog("%s %s %d not found\n", mic->name, __func__, type);
+	assert(0);
+}
+
+static void *get_dp(struct mic_info *mic, int type)
+{
+	switch (type) {
+	case VIRTIO_ID_CONSOLE:
+		return mic->mic_console.console_dp;
+	case VIRTIO_ID_NET:
+		return mic->mic_net.net_dp;
+	case VIRTIO_ID_BLOCK:
+		return mic->mic_virtblk.block_dp;
+	}
+	mpsslog("%s %s %d not found\n", mic->name, __func__, type);
+	assert(0);
+	return NULL;
+}
+
+static struct mic_device_desc *get_device_desc(struct mic_info *mic, int type)
+{
+	struct mic_device_desc *d;
+	int i;
+	void *dp = get_dp(mic, type);
+
+	for (i = mic_aligned_size(struct mic_bootparam); i < PAGE_SIZE;
+		i += mic_total_desc_size(d)) {
+		d = dp + i;
+
+		/* End of list */
+		if (d->type == 0)
+			break;
+
+		if (d->type == -1)
+			continue;
+
+		mpsslog("%s %s d-> type %d d %p\n",
+			mic->name, __func__, d->type, d);
+
+		if (d->type == (__u8)type)
+			return d;
+	}
+	mpsslog("%s %s %d not found\n", mic->name, __func__, type);
+	assert(0);
+	return NULL;
+}
+
+/* See comments in vhost.c for explanation of next_desc() */
+static unsigned next_desc(struct vring_desc *desc)
+{
+	unsigned int next;
+
+	if (!(le16toh(desc->flags) & VRING_DESC_F_NEXT))
+		return -1U;
+	next = le16toh(desc->next);
+	return next;
+}
+
+/* Sum up all the IOVEC length */
+static ssize_t
+sum_iovec_len(struct mic_copy_desc *copy)
+{
+	ssize_t sum = 0;
+	int i;
+
+	for (i = 0; i < copy->iovcnt; i++)
+		sum += copy->iov[i].iov_len;
+	return sum;
+}
+
+static inline void verify_out_len(struct mic_info *mic,
+	struct mic_copy_desc *copy)
+{
+	if (copy->out_len != sum_iovec_len(copy)) {
+		mpsslog("%s %s %d BUG copy->out_len 0x%x len 0x%x\n",
+				mic->name, __func__, __LINE__,
+				copy->out_len, sum_iovec_len(copy));
+		assert(copy->out_len == sum_iovec_len(copy));
+	}
+}
+
+/* Display an iovec */
+static void
+disp_iovec(struct mic_info *mic, struct mic_copy_desc *copy,
+	const char *s, int line)
+{
+	int i;
+
+	for (i = 0; i < copy->iovcnt; i++)
+		mpsslog("%s %s %d copy->iov[%d] addr %p len 0x%lx\n",
+			mic->name, s, line, i,
+			copy->iov[i].iov_base, copy->iov[i].iov_len);
+}
+
+static inline __u16 read_avail_idx(struct mic_vring *vr)
+{
+	return ACCESS_ONCE(vr->info->avail_idx);
+}
+
+static inline void txrx_prepare(int type, bool tx, struct mic_vring *vr,
+				struct mic_copy_desc *copy, ssize_t len)
+{
+	copy->vr_idx = tx ? 0 : 1;
+	copy->update_used = true;
+	if (type == VIRTIO_ID_NET)
+		copy->iov[1].iov_len = len - sizeof(struct virtio_net_hdr);
+	else
+		copy->iov[0].iov_len = len;
+}
+
+/* Central API which triggers the copies */
+static int
+mic_virtio_copy(struct mic_info *mic, int fd,
+	struct mic_vring *vr, struct mic_copy_desc *copy)
+{
+	int ret;
+
+	ret = ioctl(fd, MIC_VIRTIO_COPY_DESC, copy);
+	if (ret) {
+		mpsslog("%s %s %d errno %s ret %d\n",
+			mic->name, __func__, __LINE__,
+			strerror(errno), ret);
+	}
+	return ret;
+}
+
+/*
+ * This initialization routine requires at least one
+ * vring i.e. vr0. vr1 is optional.
+ */
+static void *
+init_vr(struct mic_info *mic, int fd, int type,
+	struct mic_vring *vr0, struct mic_vring *vr1, int num_vq)
+{
+	int vr_size;
+	char *va;
+
+	vr_size = PAGE_ALIGN(vring_size(MIC_VRING_ENTRIES,
+		MIC_VIRTIO_RING_ALIGN) + sizeof(struct _mic_vring_info));
+	va = mmap(NULL, MIC_DEVICE_PAGE_END + vr_size * num_vq,
+		PROT_READ, MAP_SHARED, fd, 0);
+	if (MAP_FAILED == va) {
+		mpsslog("%s %s %d mmap failed errno %s\n",
+			mic->name, __func__, __LINE__,
+			strerror(errno));
+		goto done;
+	}
+	set_dp(mic, type, va);
+	vr0->va = (struct mic_vring *)&va[MIC_DEVICE_PAGE_END];
+	vr0->info = vr0->va +
+		vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN);
+	vring_init(&vr0->vr,
+		MIC_VRING_ENTRIES, vr0->va, MIC_VIRTIO_RING_ALIGN);
+	mpsslog("%s %s vr0 %p vr0->info %p vr_size 0x%x vring 0x%x ",
+		__func__, mic->name, vr0->va, vr0->info, vr_size,
+		vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN));
+	mpsslog("magic 0x%x expected 0x%x\n",
+		vr0->info->magic, MIC_MAGIC + type);
+	assert(vr0->info->magic == MIC_MAGIC + type);
+	if (vr1) {
+		vr1->va = (struct mic_vring *)
+			&va[MIC_DEVICE_PAGE_END + vr_size];
+		vr1->info = vr1->va + vring_size(MIC_VRING_ENTRIES,
+			MIC_VIRTIO_RING_ALIGN);
+		vring_init(&vr1->vr,
+			MIC_VRING_ENTRIES, vr1->va, MIC_VIRTIO_RING_ALIGN);
+		mpsslog("%s %s vr1 %p vr1->info %p vr_size 0x%x vring 0x%x ",
+			__func__, mic->name, vr1->va, vr1->info, vr_size,
+			vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN));
+		mpsslog("magic 0x%x expected 0x%x\n",
+			vr1->info->magic, MIC_MAGIC + type + 1);
+		assert(vr1->info->magic == MIC_MAGIC + type + 1);
+	}
+done:
+	return va;
+}
+
+static void
+wait_for_card_driver(struct mic_info *mic, int fd, int type)
+{
+	struct pollfd pollfd;
+	int err;
+	struct mic_device_desc *desc = get_device_desc(mic, type);
+
+	pollfd.fd = fd;
+	mpsslog("%s %s Waiting .... desc-> type %d status 0x%x\n",
+		mic->name, __func__, type, desc->status);
+	while (1) {
+		pollfd.events = POLLIN;
+		pollfd.revents = 0;
+		err = poll(&pollfd, 1, -1);
+		if (err < 0) {
+			mpsslog("%s %s poll failed %s\n",
+				mic->name, __func__, strerror(errno));
+			continue;
+		}
+
+		if (pollfd.revents) {
+			mpsslog("%s %s Waiting... desc-> type %d status 0x%x\n",
+				mic->name, __func__, type, desc->status);
+			if (desc->status & VIRTIO_CONFIG_S_DRIVER_OK) {
+				mpsslog("%s %s poll.revents %d\n",
+					mic->name, __func__, pollfd.revents);
+				mpsslog("%s %s desc-> type %d status 0x%x\n",
+					mic->name, __func__, type,
+					desc->status);
+				break;
+			}
+		}
+	}
+}
+
+/* Spin till we have some descriptors */
+static void
+spin_for_descriptors(struct mic_info *mic, struct mic_vring *vr)
+{
+	__u16 avail_idx = read_avail_idx(vr);
+
+	while (avail_idx == le16toh(ACCESS_ONCE(vr->vr.avail->idx))) {
+#ifdef DEBUG
+		mpsslog("%s %s waiting for desc avail %d info_avail %d\n",
+			mic->name, __func__,
+			le16toh(vr->vr.avail->idx), vr->info->avail_idx);
+#endif
+		sched_yield();
+	}
+}
+
+static void *
+virtio_net(void *arg)
+{
+	static __u8 vnet_hdr[2][sizeof(struct virtio_net_hdr)];
+	static __u8 vnet_buf[2][MAX_NET_PKT_SIZE] __aligned(64);
+	struct iovec vnet_iov[2][2] = {
+		{ { .iov_base = vnet_hdr[0], .iov_len = sizeof(vnet_hdr[0]) },
+		  { .iov_base = vnet_buf[0], .iov_len = sizeof(vnet_buf[0]) } },
+		{ { .iov_base = vnet_hdr[1], .iov_len = sizeof(vnet_hdr[1]) },
+		  { .iov_base = vnet_buf[1], .iov_len = sizeof(vnet_buf[1]) } },
+	};
+	struct iovec *iov0 = vnet_iov[0], *iov1 = vnet_iov[1];
+	struct mic_info *mic = (struct mic_info *)arg;
+	char if_name[IFNAMSIZ];
+	struct pollfd net_poll[MAX_NET_FD];
+	struct mic_vring tx_vr, rx_vr;
+	struct mic_copy_desc copy;
+	struct mic_device_desc *desc;
+	int err;
+
+	snprintf(if_name, IFNAMSIZ, "mic%d", mic->id);
+	mic->mic_net.tap_fd = tun_alloc(mic, if_name);
+	if (mic->mic_net.tap_fd < 0)
+		goto done;
+
+	if (tap_configure(mic, if_name))
+		goto done;
+	mpsslog("MIC name %s id %d\n", mic->name, mic->id);
+
+	net_poll[NET_FD_VIRTIO_NET].fd = mic->mic_net.virtio_net_fd;
+	net_poll[NET_FD_VIRTIO_NET].events = POLLIN;
+	net_poll[NET_FD_TUN].fd = mic->mic_net.tap_fd;
+	net_poll[NET_FD_TUN].events = POLLIN;
+
+	if (MAP_FAILED == init_vr(mic, mic->mic_net.virtio_net_fd,
+		VIRTIO_ID_NET, &tx_vr, &rx_vr,
+		virtnet_dev_page.dd.num_vq)) {
+		mpsslog("%s init_vr failed %s\n",
+			mic->name, strerror(errno));
+		goto done;
+	}
+
+	copy.iovcnt = 2;
+	desc = get_device_desc(mic, VIRTIO_ID_NET);
+
+	while (1) {
+		ssize_t len;
+
+		net_poll[NET_FD_VIRTIO_NET].revents = 0;
+		net_poll[NET_FD_TUN].revents = 0;
+
+		/* Start polling for data from tap and virtio net */
+		err = poll(net_poll, 2, -1);
+		if (err < 0) {
+			mpsslog("%s poll failed %s\n",
+				__func__, strerror(errno));
+			continue;
+		}
+		if (!(desc->status & VIRTIO_CONFIG_S_DRIVER_OK))
+			wait_for_card_driver(mic, mic->mic_net.virtio_net_fd,
+					VIRTIO_ID_NET);
+		/*
+		 * Check if there is data to be read from TUN and write to
+		 * virtio net fd if there is.
+		 */
+		if (net_poll[NET_FD_TUN].revents & POLLIN) {
+			copy.iov = iov0;
+			len = readv(net_poll[NET_FD_TUN].fd,
+				copy.iov, copy.iovcnt);
+			if (len > 0) {
+				struct virtio_net_hdr *hdr
+					= (struct virtio_net_hdr *) vnet_hdr[0];
+
+				/* Disable checksums on the card since we are on
+				   a reliable PCIe link */
+				hdr->flags |= VIRTIO_NET_HDR_F_DATA_VALID;
+#ifdef DEBUG
+				mpsslog("%s %s %d hdr->flags 0x%x ", mic->name,
+					__func__, __LINE__, hdr->flags);
+				mpsslog("copy.out_len %d hdr->gso_type 0x%x\n",
+					copy.out_len, hdr->gso_type);
+#endif
+#ifdef DEBUG
+				disp_iovec(mic, copy, __func__, __LINE__);
+				mpsslog("%s %s %d read from tap 0x%lx\n",
+					mic->name, __func__, __LINE__,
+					len);
+#endif
+				spin_for_descriptors(mic, &tx_vr);
+				txrx_prepare(VIRTIO_ID_NET, 1, &tx_vr, &copy,
+					len);
+
+				err = mic_virtio_copy(mic,
+					mic->mic_net.virtio_net_fd, &tx_vr,
+					&copy);
+				if (err < 0) {
+					mpsslog("%s %s %d mic_virtio_copy %s\n",
+						mic->name, __func__, __LINE__,
+						strerror(errno));
+				}
+				if (!err)
+					verify_out_len(mic, &copy);
+#ifdef DEBUG
+				disp_iovec(mic, copy, __func__, __LINE__);
+				mpsslog("%s %s %d wrote to net 0x%lx\n",
+					mic->name, __func__, __LINE__,
+					sum_iovec_len(&copy));
+#endif
+				/* Reinitialize IOV for next run */
+				iov0[1].iov_len = MAX_NET_PKT_SIZE;
+			} else if (len < 0) {
+				disp_iovec(mic, &copy, __func__, __LINE__);
+				mpsslog("%s %s %d read failed %s ", mic->name,
+					__func__, __LINE__, strerror(errno));
+				mpsslog("cnt %d sum %d\n",
+					copy.iovcnt, sum_iovec_len(&copy));
+			}
+		}
+
+		/*
+		 * Check if there is data to be read from virtio net and
+		 * write to TUN if there is.
+		 */
+		if (net_poll[NET_FD_VIRTIO_NET].revents & POLLIN) {
+			while (rx_vr.info->avail_idx !=
+				le16toh(rx_vr.vr.avail->idx)) {
+				copy.iov = iov1;
+				txrx_prepare(VIRTIO_ID_NET, 0, &rx_vr, &copy,
+					MAX_NET_PKT_SIZE
+					+ sizeof(struct virtio_net_hdr));
+
+				err = mic_virtio_copy(mic,
+					mic->mic_net.virtio_net_fd, &rx_vr,
+					&copy);
+				if (!err) {
+#ifdef DEBUG
+					struct virtio_net_hdr *hdr
+						= (struct virtio_net_hdr *)
+							vnet_hdr[1];
+
+					mpsslog("%s %s %d hdr->flags 0x%x, ",
+						mic->name, __func__, __LINE__,
+						hdr->flags);
+					mpsslog("out_len %d gso_type 0x%x\n",
+						copy.out_len,
+						hdr->gso_type);
+#endif
+					/* Set the correct output iov_len */
+					iov1[1].iov_len = copy.out_len -
+						sizeof(struct virtio_net_hdr);
+					verify_out_len(mic, &copy);
+#ifdef DEBUG
+					disp_iovec(mic, copy, __func__,
+						__LINE__);
+					mpsslog("%s %s %d ",
+						mic->name, __func__, __LINE__);
+					mpsslog("read from net 0x%lx\n",
+						sum_iovec_len(copy));
+#endif
+					len = writev(net_poll[NET_FD_TUN].fd,
+						copy.iov, copy.iovcnt);
+					if (len != sum_iovec_len(&copy)) {
+						mpsslog("Tun write failed %s ",
+							strerror(errno));
+						mpsslog("len 0x%x ", len);
+						mpsslog("read_len 0x%x\n",
+							sum_iovec_len(&copy));
+					} else {
+#ifdef DEBUG
+						disp_iovec(mic, &copy, __func__,
+							__LINE__);
+						mpsslog("%s %s %d ",
+							mic->name, __func__,
+							__LINE__);
+						mpsslog("wrote to tap 0x%lx\n",
+							len);
+#endif
+					}
+				} else {
+					mpsslog("%s %s %d mic_virtio_copy %s\n",
+						mic->name, __func__, __LINE__,
+						strerror(errno));
+					break;
+				}
+			}
+		}
+		if (net_poll[NET_FD_VIRTIO_NET].revents & POLLERR)
+			mpsslog("%s: %s: POLLERR\n", __func__, mic->name);
+	}
+done:
+	pthread_exit(NULL);
+}
+
+/* virtio_console */
+#define VIRTIO_CONSOLE_FD 0
+#define MONITOR_FD (VIRTIO_CONSOLE_FD + 1)
+#define MAX_CONSOLE_FD (MONITOR_FD + 1)  /* must be the last one + 1 */
+#define MAX_BUFFER_SIZE PAGE_SIZE
+
+static void *
+virtio_console(void *arg)
+{
+	static __u8 vcons_buf[2][PAGE_SIZE];
+	struct iovec vcons_iov[2] = {
+		{ .iov_base = vcons_buf[0], .iov_len = sizeof(vcons_buf[0]) },
+		{ .iov_base = vcons_buf[1], .iov_len = sizeof(vcons_buf[1]) },
+	};
+	struct iovec *iov0 = &vcons_iov[0], *iov1 = &vcons_iov[1];
+	struct mic_info *mic = (struct mic_info *)arg;
+	int err;
+	struct pollfd console_poll[MAX_CONSOLE_FD];
+	int pty_fd;
+	char *pts_name;
+	ssize_t len;
+	struct mic_vring tx_vr, rx_vr;
+	struct mic_copy_desc copy;
+	struct mic_device_desc *desc;
+
+	pty_fd = posix_openpt(O_RDWR);
+	if (pty_fd < 0) {
+		mpsslog("can't open a pseudoterminal master device: %s\n",
+			strerror(errno));
+		goto _return;
+	}
+	pts_name = ptsname(pty_fd);
+	if (pts_name == NULL) {
+		mpsslog("can't get pts name\n");
+		goto _close_pty;
+	}
+	printf("%s console message goes to %s\n", mic->name, pts_name);
+	mpsslog("%s console message goes to %s\n", mic->name, pts_name);
+	err = grantpt(pty_fd);
+	if (err < 0) {
+		mpsslog("can't grant access: %s %s\n",
+				pts_name, strerror(errno));
+		goto _close_pty;
+	}
+	err = unlockpt(pty_fd);
+	if (err < 0) {
+		mpsslog("can't unlock a pseudoterminal: %s %s\n",
+				pts_name, strerror(errno));
+		goto _close_pty;
+	}
+	console_poll[MONITOR_FD].fd = pty_fd;
+	console_poll[MONITOR_FD].events = POLLIN;
+
+	console_poll[VIRTIO_CONSOLE_FD].fd = mic->mic_console.virtio_console_fd;
+	console_poll[VIRTIO_CONSOLE_FD].events = POLLIN;
+
+	if (MAP_FAILED == init_vr(mic, mic->mic_console.virtio_console_fd,
+		VIRTIO_ID_CONSOLE, &tx_vr, &rx_vr,
+		virtcons_dev_page.dd.num_vq)) {
+		mpsslog("%s init_vr failed %s\n",
+			mic->name, strerror(errno));
+		goto _close_pty;
+	}
+
+	copy.iovcnt = 1;
+	desc = get_device_desc(mic, VIRTIO_ID_CONSOLE);
+
+	for (;;) {
+		console_poll[MONITOR_FD].revents = 0;
+		console_poll[VIRTIO_CONSOLE_FD].revents = 0;
+		err = poll(console_poll, MAX_CONSOLE_FD, -1);
+		if (err < 0) {
+			mpsslog("%s %d: poll failed: %s\n", __func__, __LINE__,
+				strerror(errno));
+			continue;
+		}
+		if (!(desc->status & VIRTIO_CONFIG_S_DRIVER_OK))
+			wait_for_card_driver(mic,
+				mic->mic_console.virtio_console_fd,
+				VIRTIO_ID_CONSOLE);
+
+		if (console_poll[MONITOR_FD].revents & POLLIN) {
+			copy.iov = iov0;
+			len = readv(pty_fd, copy.iov, copy.iovcnt);
+			if (len > 0) {
+#ifdef DEBUG
+				disp_iovec(mic, copy, __func__, __LINE__);
+				mpsslog("%s %s %d read from tap 0x%lx\n",
+					mic->name, __func__, __LINE__,
+					len);
+#endif
+				spin_for_descriptors(mic, &tx_vr);
+				txrx_prepare(VIRTIO_ID_CONSOLE, 1, &tx_vr,
+					&copy, len);
+
+				err = mic_virtio_copy(mic,
+					mic->mic_console.virtio_console_fd,
+					&tx_vr, &copy);
+				if (err < 0) {
+					mpsslog("%s %s %d mic_virtio_copy %s\n",
+						mic->name, __func__, __LINE__,
+						strerror(errno));
+				}
+				if (!err)
+					verify_out_len(mic, &copy);
+#ifdef DEBUG
+				disp_iovec(mic, copy, __func__, __LINE__);
+				mpsslog("%s %s %d wrote to net 0x%lx\n",
+					mic->name, __func__, __LINE__,
+					sum_iovec_len(copy));
+#endif
+				/* Reinitialize IOV for next run */
+				iov0->iov_len = PAGE_SIZE;
+			} else if (len < 0) {
+				disp_iovec(mic, &copy, __func__, __LINE__);
+				mpsslog("%s %s %d read failed %s ",
+					mic->name, __func__, __LINE__,
+					strerror(errno));
+				mpsslog("cnt %d sum %d\n",
+					copy.iovcnt, sum_iovec_len(&copy));
+			}
+		}
+
+		if (console_poll[VIRTIO_CONSOLE_FD].revents & POLLIN) {
+			while (rx_vr.info->avail_idx !=
+				le16toh(rx_vr.vr.avail->idx)) {
+				copy.iov = iov1;
+				txrx_prepare(VIRTIO_ID_CONSOLE, 0, &rx_vr,
+					&copy, PAGE_SIZE);
+
+				err = mic_virtio_copy(mic,
+					mic->mic_console.virtio_console_fd,
+					&rx_vr, &copy);
+				if (!err) {
+					/* Set the correct output iov_len */
+					iov1->iov_len = copy.out_len;
+					verify_out_len(mic, &copy);
+#ifdef DEBUG
+					disp_iovec(mic, copy, __func__,
+						__LINE__);
+					mpsslog("%s %s %d ",
+						mic->name, __func__, __LINE__);
+					mpsslog("read from net 0x%lx\n",
+						sum_iovec_len(copy));
+#endif
+					len = writev(pty_fd,
+						copy.iov, copy.iovcnt);
+					if (len != sum_iovec_len(&copy)) {
+						mpsslog("Tun write failed %s ",
+							strerror(errno));
+						mpsslog("len 0x%x ", len);
+						mpsslog("read_len 0x%x\n",
+							sum_iovec_len(&copy));
+					} else {
+#ifdef DEBUG
+						disp_iovec(mic, copy, __func__,
+							__LINE__);
+						mpsslog("%s %s %d ",
+							mic->name, __func__,
+							__LINE__);
+						mpsslog("wrote to tap 0x%lx\n",
+							len);
+#endif
+					}
+				} else {
+					mpsslog("%s %s %d mic_virtio_copy %s\n",
+						mic->name, __func__, __LINE__,
+						strerror(errno));
+					break;
+				}
+			}
+		}
+		if (console_poll[NET_FD_VIRTIO_NET].revents & POLLERR)
+			mpsslog("%s: %s: POLLERR\n", __func__, mic->name);
+	}
+_close_pty:
+	close(pty_fd);
+_return:
+	pthread_exit(NULL);
+}
+
+static void
+add_virtio_device(struct mic_info *mic, struct mic_device_desc *dd)
+{
+	char path[PATH_MAX];
+	int fd, err;
+
+	snprintf(path, PATH_MAX, "/dev/mic%d", mic->id);
+	fd = open(path, O_RDWR);
+	if (fd < 0) {
+		mpsslog("Could not open %s %s\n", path, strerror(errno));
+		return;
+	}
+
+	err = ioctl(fd, MIC_VIRTIO_ADD_DEVICE, dd);
+	if (err < 0) {
+		mpsslog("Could not add %d %s\n", dd->type, strerror(errno));
+		close(fd);
+		return;
+	}
+	switch (dd->type) {
+	case VIRTIO_ID_NET:
+		mic->mic_net.virtio_net_fd = fd;
+		mpsslog("Added VIRTIO_ID_NET for %s\n", mic->name);
+		break;
+	case VIRTIO_ID_CONSOLE:
+		mic->mic_console.virtio_console_fd = fd;
+		mpsslog("Added VIRTIO_ID_CONSOLE for %s\n", mic->name);
+		break;
+	case VIRTIO_ID_BLOCK:
+		mic->mic_virtblk.virtio_block_fd = fd;
+		mpsslog("Added VIRTIO_ID_BLOCK for %s\n", mic->name);
+		break;
+	}
+}
+
+static bool
+set_backend_file(struct mic_info *mic)
+{
+	FILE *config;
+	char buff[PATH_MAX], *line, *evv, *p;
+
+	snprintf(buff, PATH_MAX, "%s/mpssd%03d.conf", mic_config_dir, mic->id);
+	config = fopen(buff, "r");
+	if (config == NULL)
+		return false;
+	do {  /* look for "virtblk_backend=XXXX" */
+		line = fgets(buff, PATH_MAX, config);
+		if (line == NULL)
+			break;
+		if (*line == '#')
+			continue;
+		p = strchr(line, '\n');
+		if (p)
+			*p = '\0';
+	} while (strncmp(line, virtblk_backend, strlen(virtblk_backend)) != 0);
+	fclose(config);
+	if (line == NULL)
+		return false;
+	evv = strchr(line, '=');
+	if (evv == NULL)
+		return false;
+	mic->mic_virtblk.backend_file = malloc(strlen(evv) + 1);
+	if (mic->mic_virtblk.backend_file == NULL) {
+		mpsslog("can't allocate memory\n", mic->name, mic->id);
+		return false;
+	}
+	strcpy(mic->mic_virtblk.backend_file, evv + 1);
+	return true;
+}
+
+#define SECTOR_SIZE 512
+static bool
+set_backend_size(struct mic_info *mic)
+{
+	mic->mic_virtblk.backend_size = lseek(mic->mic_virtblk.backend, 0,
+		SEEK_END);
+	if (mic->mic_virtblk.backend_size < 0) {
+		mpsslog("%s: can't seek: %s\n",
+			mic->name, mic->mic_virtblk.backend_file);
+		return false;
+	}
+	virtblk_dev_page.blk_config.capacity =
+		mic->mic_virtblk.backend_size / SECTOR_SIZE;
+	if ((mic->mic_virtblk.backend_size % SECTOR_SIZE) != 0)
+		virtblk_dev_page.blk_config.capacity++;
+
+	virtblk_dev_page.blk_config.capacity =
+		htole64(virtblk_dev_page.blk_config.capacity);
+
+	return true;
+}
+
+static bool
+open_backend(struct mic_info *mic)
+{
+	if (!set_backend_file(mic))
+		goto _error_exit;
+	mic->mic_virtblk.backend = open(mic->mic_virtblk.backend_file, O_RDWR);
+	if (mic->mic_virtblk.backend < 0) {
+		mpsslog("%s: can't open: %s\n", mic->name,
+			mic->mic_virtblk.backend_file);
+		goto _error_free;
+	}
+	if (!set_backend_size(mic))
+		goto _error_close;
+	mic->mic_virtblk.backend_addr = mmap(NULL,
+		mic->mic_virtblk.backend_size,
+		PROT_READ|PROT_WRITE, MAP_SHARED,
+		mic->mic_virtblk.backend, 0L);
+	if (mic->mic_virtblk.backend_addr == MAP_FAILED) {
+		mpsslog("%s: can't map: %s %s\n",
+			mic->name, mic->mic_virtblk.backend_file,
+			strerror(errno));
+		goto _error_close;
+	}
+	return true;
+
+ _error_close:
+	close(mic->mic_virtblk.backend);
+ _error_free:
+	free(mic->mic_virtblk.backend_file);
+ _error_exit:
+	return false;
+}
+
+static void
+close_backend(struct mic_info *mic)
+{
+	munmap(mic->mic_virtblk.backend_addr, mic->mic_virtblk.backend_size);
+	close(mic->mic_virtblk.backend);
+	free(mic->mic_virtblk.backend_file);
+}
+
+static bool
+start_virtblk(struct mic_info *mic, struct mic_vring *vring)
+{
+	if (((__u64)&virtblk_dev_page.blk_config % 8) != 0) {
+		mpsslog("%s: blk_config is not 8 byte aligned.\n",
+			mic->name);
+		return false;
+	}
+	add_virtio_device(mic, &virtblk_dev_page.dd);
+	if (MAP_FAILED == init_vr(mic, mic->mic_virtblk.virtio_block_fd,
+		VIRTIO_ID_BLOCK, vring, NULL, virtblk_dev_page.dd.num_vq)) {
+		mpsslog("%s init_vr failed %s\n",
+			mic->name, strerror(errno));
+		return false;
+	}
+	return true;
+}
+
+static void
+stop_virtblk(struct mic_info *mic)
+{
+	int vr_size, ret;
+
+	vr_size = PAGE_ALIGN(vring_size(MIC_VRING_ENTRIES,
+		MIC_VIRTIO_RING_ALIGN) + sizeof(struct _mic_vring_info));
+	ret = munmap(mic->mic_virtblk.block_dp,
+		MIC_DEVICE_PAGE_END + vr_size * virtblk_dev_page.dd.num_vq);
+	if (ret < 0)
+		mpsslog("%s munmap errno %d\n", mic->name, errno);
+	close(mic->mic_virtblk.virtio_block_fd);
+}
+
+static __u8
+header_error_check(struct vring_desc *desc)
+{
+	if (le32toh(desc->len) != sizeof(struct virtio_blk_outhdr)) {
+		mpsslog("%s() %d: length is not sizeof(virtio_blk_outhd)\n",
+				__func__, __LINE__);
+		return -EIO;
+	}
+	if (!(le16toh(desc->flags) & VRING_DESC_F_NEXT)) {
+		mpsslog("%s() %d: alone\n",
+			__func__, __LINE__);
+		return -EIO;
+	}
+	if (le16toh(desc->flags) & VRING_DESC_F_WRITE) {
+		mpsslog("%s() %d: not read\n",
+			__func__, __LINE__);
+		return -EIO;
+	}
+	return 0;
+}
+
+static int
+read_header(int fd, struct virtio_blk_outhdr *hdr, __u32 desc_idx)
+{
+	struct iovec iovec;
+	struct mic_copy_desc copy;
+
+	iovec.iov_len = sizeof(*hdr);
+	iovec.iov_base = hdr;
+	copy.iov = &iovec;
+	copy.iovcnt = 1;
+	copy.vr_idx = 0;  /* only one vring on virtio_block */
+	copy.update_used = false;  /* do not update used index */
+	return ioctl(fd, MIC_VIRTIO_COPY_DESC, &copy);
+}
+
+static int
+transfer_blocks(int fd, struct iovec *iovec, __u32 iovcnt)
+{
+	struct mic_copy_desc copy;
+
+	copy.iov = iovec;
+	copy.iovcnt = iovcnt;
+	copy.vr_idx = 0;  /* only one vring on virtio_block */
+	copy.update_used = false;  /* do not update used index */
+	return ioctl(fd, MIC_VIRTIO_COPY_DESC, &copy);
+}
+
+static __u8
+status_error_check(struct vring_desc *desc)
+{
+	if (le32toh(desc->len) != sizeof(__u8)) {
+		mpsslog("%s() %d: length is not sizeof(status)\n",
+			__func__, __LINE__);
+		return -EIO;
+	}
+	return 0;
+}
+
+static int
+write_status(int fd, __u8 *status)
+{
+	struct iovec iovec;
+	struct mic_copy_desc copy;
+
+	iovec.iov_base = status;
+	iovec.iov_len = sizeof(*status);
+	copy.iov = &iovec;
+	copy.iovcnt = 1;
+	copy.vr_idx = 0;  /* only one vring on virtio_block */
+	copy.update_used = true; /* Update used index */
+	return ioctl(fd, MIC_VIRTIO_COPY_DESC, &copy);
+}
+
+static void *
+virtio_block(void *arg)
+{
+	struct mic_info *mic = (struct mic_info *) arg;
+	int ret;
+	struct pollfd block_poll;
+	struct mic_vring vring;
+	__u16 avail_idx;
+	__u32 desc_idx;
+	struct vring_desc *desc;
+	struct iovec *iovec, *piov;
+	__u8 status;
+	__u32 buffer_desc_idx;
+	struct virtio_blk_outhdr hdr;
+	void *fos;
+
+	for (;;) {  /* forever */
+		if (!open_backend(mic)) { /* No virtblk */
+			for (mic->mic_virtblk.signaled = 0;
+				!mic->mic_virtblk.signaled;)
+				sleep(1);
+			continue;
+		}
+
+		/* backend file is specified. */
+		if (!start_virtblk(mic, &vring))
+			goto _close_backend;
+		iovec = malloc(sizeof(*iovec) *
+			le32toh(virtblk_dev_page.blk_config.seg_max));
+		if (!iovec) {
+			mpsslog("%s: can't alloc iovec: %s\n",
+				mic->name, strerror(ENOMEM));
+			goto _stop_virtblk;
+		}
+
+		block_poll.fd = mic->mic_virtblk.virtio_block_fd;
+		block_poll.events = POLLIN;
+		for (mic->mic_virtblk.signaled = 0;
+		     !mic->mic_virtblk.signaled;) {
+			block_poll.revents = 0;
+					/* timeout in 1 sec to see signaled */
+			ret = poll(&block_poll, 1, 1000);
+			if (ret < 0) {
+				mpsslog("%s %d: poll failed: %s\n",
+					__func__, __LINE__,
+					strerror(errno));
+				continue;
+			}
+
+			if (!(block_poll.revents & POLLIN)) {
+#ifdef DEBUG
+				mpsslog("%s %d: block_poll.revents=0x%x\n",
+					__func__, __LINE__, block_poll.revents);
+#endif
+				continue;
+			}
+
+			/* POLLIN */
+			while (vring.info->avail_idx !=
+				le16toh(vring.vr.avail->idx)) {
+				/* read header element */
+				avail_idx =
+					vring.info->avail_idx &
+					(vring.vr.num - 1);
+				desc_idx = le16toh(
+					vring.vr.avail->ring[avail_idx]);
+				desc = &vring.vr.desc[desc_idx];
+#ifdef DEBUG
+				mpsslog("%s() %d: avail_idx=%d ",
+					__func__, __LINE__,
+					vring.info->avail_idx);
+				mpsslog("vring.vr.num=%d desc=%p\n",
+					vring.vr.num, desc);
+#endif
+				status = header_error_check(desc);
+				ret = read_header(
+					mic->mic_virtblk.virtio_block_fd,
+					&hdr, desc_idx);
+				if (ret < 0) {
+					mpsslog("%s() %d %s: ret=%d %s\n",
+						__func__, __LINE__,
+						mic->name, ret,
+						strerror(errno));
+					break;
+				}
+				/* buffer element */
+				piov = iovec;
+				status = 0;
+				fos = mic->mic_virtblk.backend_addr +
+					(hdr.sector * SECTOR_SIZE);
+				buffer_desc_idx = desc_idx =
+					next_desc(desc);
+				for (desc = &vring.vr.desc[buffer_desc_idx];
+				     desc->flags & VRING_DESC_F_NEXT;
+				     desc_idx = next_desc(desc),
+					     desc = &vring.vr.desc[desc_idx]) {
+					piov->iov_len = desc->len;
+					piov->iov_base = fos;
+					piov++;
+					fos += desc->len;
+				}
+				/* Returning NULLs for VIRTIO_BLK_T_GET_ID. */
+				if (hdr.type & ~(VIRTIO_BLK_T_OUT |
+					VIRTIO_BLK_T_GET_ID)) {
+					/*
+					  VIRTIO_BLK_T_IN - does not do
+					  anything. Probably for documenting.
+					  VIRTIO_BLK_T_SCSI_CMD - for
+					  virtio_scsi.
+					  VIRTIO_BLK_T_FLUSH - turned off in
+					  config space.
+					  VIRTIO_BLK_T_BARRIER - defined but not
+					  used in anywhere.
+					*/
+					mpsslog("%s() %d: type %x ",
+						__func__, __LINE__,
+						hdr.type);
+					mpsslog("is not supported\n");
+					status = -ENOTSUP;
+
+				} else {
+					ret = transfer_blocks(
+					mic->mic_virtblk.virtio_block_fd,
+						iovec,
+						piov - iovec);
+					if (ret < 0 &&
+						status != 0)
+						status = ret;
+				}
+				/* write status and update used pointer */
+				if (status != 0)
+					status = status_error_check(desc);
+				ret = write_status(
+					mic->mic_virtblk.virtio_block_fd,
+					&status);
+#ifdef DEBUG
+				mpsslog("%s() %d: write status=%d on desc=%p\n",
+					__func__, __LINE__,
+					status, desc);
+#endif
+			}
+		}
+		free(iovec);
+_stop_virtblk:
+		stop_virtblk(mic);
+_close_backend:
+		close_backend(mic);
+	}  /* forever */
+
+	pthread_exit(NULL);
+}
+
+static void
+reset(struct mic_info *mic)
+{
+#define RESET_TIMEOUT 120
+	int i = RESET_TIMEOUT;
+	setsysfs(mic->name, "state", "reset");
+	while (i) {
+		char *state;
+		state = readsysfs(mic->name, "state");
+		if (!state)
+			goto retry;
+		mpsslog("%s: %s %d state %s\n",
+			mic->name, __func__, __LINE__, state);
+		if ((!strcmp(state, "offline"))) {
+			free(state);
+			break;
+		}
+		free(state);
+retry:
+		sleep(1);
+		i--;
+	}
+}
+
+static int
+get_mic_shutdown_status(struct mic_info *mic, char *shutdown_status)
+{
+	if (!strcmp(shutdown_status, "nop"))
+		return MIC_NOP;
+	if (!strcmp(shutdown_status, "crashed"))
+		return MIC_CRASHED;
+	if (!strcmp(shutdown_status, "halted"))
+		return MIC_HALTED;
+	if (!strcmp(shutdown_status, "poweroff"))
+		return MIC_POWER_OFF;
+	if (!strcmp(shutdown_status, "restart"))
+		return MIC_RESTART;
+	mpsslog("%s: BUG invalid status %s\n", mic->name, shutdown_status);
+	/* Invalid state */
+	assert(0);
+};
+
+static int get_mic_state(struct mic_info *mic, char *state)
+{
+	if (!strcmp(state, "offline"))
+		return MIC_OFFLINE;
+	if (!strcmp(state, "online"))
+		return MIC_ONLINE;
+	if (!strcmp(state, "shutting_down"))
+		return MIC_SHUTTING_DOWN;
+	if (!strcmp(state, "reset_failed"))
+		return MIC_RESET_FAILED;
+	mpsslog("%s: BUG invalid state %s\n", mic->name, state);
+	/* Invalid state */
+	assert(0);
+};
+
+static void mic_handle_shutdown(struct mic_info *mic)
+{
+#define SHUTDOWN_TIMEOUT 60
+	int i = SHUTDOWN_TIMEOUT, ret, stat = 0;
+	char *shutdown_status;
+	while (i) {
+		shutdown_status = readsysfs(mic->name, "shutdown_status");
+		if (!shutdown_status)
+			continue;
+		mpsslog("%s: %s %d shutdown_status %s\n",
+			mic->name, __func__, __LINE__, shutdown_status);
+		switch (get_mic_shutdown_status(mic, shutdown_status)) {
+		case MIC_RESTART:
+			mic->restart = 1;
+		case MIC_HALTED:
+		case MIC_POWER_OFF:
+		case MIC_CRASHED:
+			free(shutdown_status);
+			goto reset;
+		default:
+			break;
+		}
+		free(shutdown_status);
+		sleep(1);
+		i--;
+	}
+reset:
+	ret = kill(mic->pid, SIGTERM);
+	mpsslog("%s: %s %d kill pid %d ret %d\n",
+		mic->name, __func__, __LINE__,
+		mic->pid, ret);
+	if (!ret) {
+		ret = waitpid(mic->pid, &stat,
+			WIFSIGNALED(stat));
+		mpsslog("%s: %s %d waitpid ret %d pid %d\n",
+			mic->name, __func__, __LINE__,
+			ret, mic->pid);
+	}
+	if (ret == mic->pid)
+		reset(mic);
+}
+
+static void *
+mic_config(void *arg)
+{
+	struct mic_info *mic = (struct mic_info *)arg;
+	char *state = NULL;
+	char pathname[PATH_MAX];
+	int fd, ret;
+	struct pollfd ufds[1];
+	char value[4096];
+
+	snprintf(pathname, PATH_MAX - 1, "%s/%s/%s",
+		MICSYSFSDIR, mic->name, "state");
+
+	fd = open(pathname, O_RDONLY);
+	if (fd < 0) {
+		mpsslog("%s: opening file %s failed %s\n",
+			mic->name, pathname, strerror(errno));
+		goto error;
+	}
+
+	do {
+		ret = read(fd, value, sizeof(value));
+		if (ret < 0) {
+			mpsslog("%s: Failed to read sysfs entry '%s': %s\n",
+				mic->name, pathname, strerror(errno));
+			goto close_error1;
+		}
+retry:
+		state = readsysfs(mic->name, "state");
+		if (!state)
+			goto retry;
+		mpsslog("%s: %s %d state %s\n",
+			mic->name, __func__, __LINE__, state);
+		switch (get_mic_state(mic, state)) {
+		case MIC_SHUTTING_DOWN:
+			mic_handle_shutdown(mic);
+			goto close_error;
+		default:
+			break;
+		}
+		free(state);
+
+		ufds[0].fd = fd;
+		ufds[0].events = POLLERR | POLLPRI;
+		ret = poll(ufds, 1, -1);
+		if (ret < 0) {
+			mpsslog("%s: poll failed %s\n",
+				mic->name, strerror(errno));
+			goto close_error1;
+		}
+	} while (1);
+close_error:
+	free(state);
+close_error1:
+	close(fd);
+error:
+	init_mic(mic);
+	pthread_exit(NULL);
+}
+
+static void
+set_cmdline(struct mic_info *mic)
+{
+	char buffer[PATH_MAX];
+	int len;
+
+	len = snprintf(buffer, PATH_MAX,
+		"clocksource=tsc highres=off nohz=off ");
+	len += snprintf(buffer + len, PATH_MAX,
+		"cpufreq_on;corec6_off;pc3_off;pc6_off ");
+	len += snprintf(buffer + len, PATH_MAX,
+		"ifcfg=static;address,172.31.%d.1;netmask,255.255.255.0",
+		mic->id);
+
+	setsysfs(mic->name, "cmdline", buffer);
+	mpsslog("%s: Command line: \"%s\"\n", mic->name, buffer);
+	snprintf(buffer, PATH_MAX, "172.31.%d.1", mic->id);
+	mpsslog("%s: IPADDR: \"%s\"\n", mic->name, buffer);
+}
+
+static void
+set_log_buf_info(struct mic_info *mic)
+{
+	int fd;
+	off_t len;
+	char system_map[] = "/lib/firmware/mic/System.map";
+	char *map, *temp, log_buf[17] = {'\0'};
+
+	fd = open(system_map, O_RDONLY);
+	if (fd < 0) {
+		mpsslog("%s: Opening System.map failed: %d\n",
+			mic->name, errno);
+		return;
+	}
+	len = lseek(fd, 0, SEEK_END);
+	if (len < 0) {
+		mpsslog("%s: Reading System.map size failed: %d\n",
+			mic->name, errno);
+		close(fd);
+		return;
+	}
+	map = mmap(NULL, len, PROT_READ, MAP_PRIVATE, fd, 0);
+	if (map == MAP_FAILED) {
+		mpsslog("%s: mmap of System.map failed: %d\n",
+			mic->name, errno);
+		close(fd);
+		return;
+	}
+	temp = strstr(map, "__log_buf");
+	if (!temp) {
+		mpsslog("%s: __log_buf not found: %d\n", mic->name, errno);
+		munmap(map, len);
+		close(fd);
+		return;
+	}
+	strncpy(log_buf, temp - 19, 16);
+	setsysfs(mic->name, "log_buf_addr", log_buf);
+	mpsslog("%s: log_buf_addr: %s\n", mic->name, log_buf);
+	temp = strstr(map, "log_buf_len");
+	if (!temp) {
+		mpsslog("%s: log_buf_len not found: %d\n", mic->name, errno);
+		munmap(map, len);
+		close(fd);
+		return;
+	}
+	strncpy(log_buf, temp - 19, 16);
+	setsysfs(mic->name, "log_buf_len", log_buf);
+	mpsslog("%s: log_buf_len: %s\n", mic->name, log_buf);
+	munmap(map, len);
+	close(fd);
+}
+
+static void init_mic(struct mic_info *mic);
+
+static void
+change_virtblk_backend(int x, siginfo_t *siginfo, void *p)
+{
+	struct mic_info *mic;
+
+	for (mic = mic_list.next; mic != NULL; mic = mic->next)
+		mic->mic_virtblk.signaled = 1/* true */;
+}
+
+static void
+init_mic(struct mic_info *mic)
+{
+	struct sigaction ignore = {
+		.sa_flags = 0,
+		.sa_handler = SIG_IGN
+	};
+	struct sigaction act = {
+		.sa_flags = SA_SIGINFO,
+		.sa_sigaction = change_virtblk_backend,
+	};
+	char buffer[PATH_MAX];
+	int err;
+
+	/*
+	 * Currently, one virtio block device is supported for each MIC card
+	 * at a time. Any user (or test) can send a SIGUSR1 to the MIC daemon.
+	 * The signal informs the virtio block backend about a change in the
+	 * configuration file which specifies the virtio backend file name on
+	 * the host. Virtio block backend then re-reads the configuration file
+	 * and switches to the new block device. This signalling mechanism may
+	 * not be required once multiple virtio block devices are supported by
+	 * the MIC daemon.
+	 */
+	sigaction(SIGUSR1, &ignore, NULL);
+
+	mic->pid = fork();
+	switch (mic->pid) {
+	case 0:
+		set_log_buf_info(mic);
+		set_cmdline(mic);
+		add_virtio_device(mic, &virtcons_dev_page.dd);
+		add_virtio_device(mic, &virtnet_dev_page.dd);
+		err = pthread_create(&mic->mic_console.console_thread, NULL,
+			virtio_console, mic);
+		if (err)
+			mpsslog("%s virtcons pthread_create failed %s\n",
+			mic->name, strerror(err));
+		err = pthread_create(&mic->mic_net.net_thread, NULL,
+			virtio_net, mic);
+		if (err)
+			mpsslog("%s virtnet pthread_create failed %s\n",
+			mic->name, strerror(err));
+		err = pthread_create(&mic->mic_virtblk.block_thread, NULL,
+			virtio_block, mic);
+		if (err)
+			mpsslog("%s virtblk pthread_create failed %s\n",
+			mic->name, strerror(err));
+		sigemptyset(&act.sa_mask);
+		err = sigaction(SIGUSR1, &act, NULL);
+		if (err)
+			mpsslog("%s sigaction SIGUSR1 failed %s\n",
+			mic->name, strerror(errno));
+		while (1)
+			sleep(60);
+	case -1:
+		mpsslog("fork failed MIC name %s id %d errno %d\n",
+			mic->name, mic->id, errno);
+		break;
+	default:
+		if (mic->restart) {
+			snprintf(buffer, PATH_MAX, "boot");
+			setsysfs(mic->name, "state", buffer);
+			mpsslog("%s restarting mic %d\n",
+				mic->name, mic->restart);
+			mic->restart = 0;
+		}
+		pthread_create(&mic->config_thread, NULL, mic_config, mic);
+	}
+}
+
+static void
+start_daemon(void)
+{
+	struct mic_info *mic;
+
+	for (mic = mic_list.next; mic != NULL; mic = mic->next)
+		init_mic(mic);
+
+	while (1)
+		sleep(60);
+}
+
+static int
+init_mic_list(void)
+{
+	struct mic_info *mic = &mic_list;
+	struct dirent *file;
+	DIR *dp;
+	int cnt = 0;
+
+	dp = opendir(MICSYSFSDIR);
+	if (!dp)
+		return 0;
+
+	while ((file = readdir(dp)) != NULL) {
+		if (!strncmp(file->d_name, "mic", 3)) {
+			mic->next = malloc(sizeof(struct mic_info));
+			if (mic->next) {
+				mic = mic->next;
+				mic->next = NULL;
+				memset(mic, 0, sizeof(struct mic_info));
+				mic->id = atoi(&file->d_name[3]);
+				mic->name = malloc(strlen(file->d_name) + 16);
+				if (mic->name)
+					strcpy(mic->name, file->d_name);
+				mpsslog("MIC name %s id %d\n", mic->name,
+					mic->id);
+				cnt++;
+			}
+		}
+	}
+
+	closedir(dp);
+	return cnt;
+}
+
+void
+mpsslog(char *format, ...)
+{
+	va_list args;
+	char buffer[4096];
+	char ts[52], *ts1;
+	time_t t;
+
+	if (logfp == NULL)
+		return;
+
+	va_start(args, format);
+	vsprintf(buffer, format, args);
+	va_end(args);
+
+	time(&t);
+	ts1 = ctime_r(&t, ts);
+	ts1[strlen(ts1) - 1] = '\0';
+	fprintf(logfp, "%s: %s", ts1, buffer);
+
+	fflush(logfp);
+}
+
+int
+main(int argc, char *argv[])
+{
+	int cnt;
+	pid_t pid;
+
+	myname = argv[0];
+
+	logfp = fopen(LOGFILE_NAME, "a+");
+	if (!logfp) {
+		fprintf(stderr, "cannot open logfile '%s'\n", LOGFILE_NAME);
+		exit(1);
+	}
+	pid = fork();
+	switch (pid) {
+	case 0:
+		break;
+	case -1:
+		exit(2);
+	default:
+		exit(0);
+	}
+
+	mpsslog("MIC Daemon start\n");
+
+	cnt = init_mic_list();
+	if (cnt == 0) {
+		mpsslog("MIC module not loaded\n");
+		exit(3);
+	}
+	mpsslog("MIC found %d devices\n", cnt);
+
+	start_daemon();
+
+	exit(0);
+}
diff --git a/Documentation/mic/mpssd/mpssd.h b/Documentation/mic/mpssd/mpssd.h
new file mode 100644
index 000000000000..b6dee38ca5b1
--- /dev/null
+++ b/Documentation/mic/mpssd/mpssd.h
@@ -0,0 +1,100 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC User Space Tools.
+ */
+#ifndef _MPSSD_H_
+#define _MPSSD_H_
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <libgen.h>
+#include <pthread.h>
+#include <stdarg.h>
+#include <time.h>
+#include <errno.h>
+#include <sys/dir.h>
+#include <sys/ioctl.h>
+#include <sys/poll.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <sys/utsname.h>
+#include <sys/wait.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <pthread.h>
+#include <signal.h>
+#include <limits.h>
+#include <syslog.h>
+#include <getopt.h>
+#include <net/if.h>
+#include <linux/if_tun.h>
+#include <linux/if_tun.h>
+#include <linux/virtio_ids.h>
+
+#define MICSYSFSDIR "/sys/class/mic"
+#define LOGFILE_NAME "/var/log/mpssd"
+#define PAGE_SIZE 4096
+
+struct mic_console_info {
+	pthread_t       console_thread;
+	int		virtio_console_fd;
+	void		*console_dp;
+};
+
+struct mic_net_info {
+	pthread_t       net_thread;
+	int		virtio_net_fd;
+	int		tap_fd;
+	void		*net_dp;
+};
+
+struct mic_virtblk_info {
+	pthread_t       block_thread;
+	int		virtio_block_fd;
+	void		*block_dp;
+	volatile sig_atomic_t	signaled;
+	char		*backend_file;
+	int		backend;
+	void		*backend_addr;
+	long		backend_size;
+};
+
+struct mic_info {
+	int		id;
+	char		*name;
+	pthread_t       config_thread;
+	pid_t		pid;
+	struct mic_console_info	mic_console;
+	struct mic_net_info	mic_net;
+	struct mic_virtblk_info	mic_virtblk;
+	int		restart;
+	struct mic_info *next;
+};
+
+void mpsslog(char *format, ...);
+char *readsysfs(char *dir, char *entry);
+int setsysfs(char *dir, char *entry, char *value);
+#endif
diff --git a/Documentation/mic/mpssd/sysfs.c b/Documentation/mic/mpssd/sysfs.c
new file mode 100644
index 000000000000..11de72b63386
--- /dev/null
+++ b/Documentation/mic/mpssd/sysfs.c
@@ -0,0 +1,102 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC User Space Tools.
+ */
+
+#include "mpssd.h"
+
+#define PAGE_SIZE 4096
+
+char *
+readsysfs(char *dir, char *entry)
+{
+	char filename[PATH_MAX];
+	char value[PAGE_SIZE];
+	char *string = NULL;
+	int fd;
+	int len;
+
+	if (dir == NULL)
+		snprintf(filename, PATH_MAX, "%s/%s", MICSYSFSDIR, entry);
+	else
+		snprintf(filename, PATH_MAX,
+			"%s/%s/%s", MICSYSFSDIR, dir, entry);
+
+	fd = open(filename, O_RDONLY);
+	if (fd < 0) {
+		mpsslog("Failed to open sysfs entry '%s': %s\n",
+			filename, strerror(errno));
+		return NULL;
+	}
+
+	len = read(fd, value, sizeof(value));
+	if (len < 0) {
+		mpsslog("Failed to read sysfs entry '%s': %s\n",
+			filename, strerror(errno));
+		goto readsys_ret;
+	}
+	if (len == 0)
+		goto readsys_ret;
+
+	value[len - 1] = '\0';
+
+	string = malloc(strlen(value) + 1);
+	if (string)
+		strcpy(string, value);
+
+readsys_ret:
+	close(fd);
+	return string;
+}
+
+int
+setsysfs(char *dir, char *entry, char *value)
+{
+	char filename[PATH_MAX];
+	char *oldvalue;
+	int fd, ret = 0;
+
+	if (dir == NULL)
+		snprintf(filename, PATH_MAX, "%s/%s", MICSYSFSDIR, entry);
+	else
+		snprintf(filename, PATH_MAX, "%s/%s/%s",
+			MICSYSFSDIR, dir, entry);
+
+	oldvalue = readsysfs(dir, entry);
+
+	fd = open(filename, O_RDWR);
+	if (fd < 0) {
+		ret = errno;
+		mpsslog("Failed to open sysfs entry '%s': %s\n",
+			filename, strerror(errno));
+		goto done;
+	}
+
+	if (!oldvalue || strcmp(value, oldvalue)) {
+		if (write(fd, value, strlen(value)) < 0) {
+			ret = errno;
+			mpsslog("Failed to write new sysfs entry '%s': %s\n",
+				filename, strerror(errno));
+		}
+	}
+	close(fd);
+done:
+	if (oldvalue)
+		free(oldvalue);
+	return ret;
+}
-- 
cgit 


From 0a335b6d47f014c41b8a0c8cbdc6d4886c10f5d5 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Tue, 24 Sep 2013 10:40:57 +0800
Subject: mmc: cb710: drop free_irq for devm_request_irq allocated irq

irq allocated with devm_request_irq should not be freed using
free_irq, because doing so causes a dangling pointer, and a
subsequent double free.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/cb710/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/cb710/core.c b/drivers/misc/cb710/core.c
index 2e50f811ff59..fb397e7d1cce 100644
--- a/drivers/misc/cb710/core.c
+++ b/drivers/misc/cb710/core.c
@@ -176,7 +176,7 @@ static int cb710_suspend(struct pci_dev *pdev, pm_message_t state)
 {
 	struct cb710_chip *chip = pci_get_drvdata(pdev);
 
-	free_irq(pdev->irq, chip);
+	devm_free_irq(&pdev->dev, pdev->irq, chip);
 	pci_save_state(pdev);
 	pci_disable_device(pdev);
 	if (state.event & PM_EVENT_SLEEP)
-- 
cgit 


From 42d64e1add3a1ce8a787116036163b8724362145 Mon Sep 17 00:00:00 2001
From: Paul Moore <pmoore@redhat.com>
Date: Thu, 26 Sep 2013 17:00:46 -0400
Subject: selinux: correct locking in selinux_netlbl_socket_connect)

The SELinux/NetLabel glue code has a locking bug that affects systems
with NetLabel enabled, see the kernel error message below.  This patch
corrects this problem by converting the bottom half socket lock to a
more conventional, and correct for this call-path, lock_sock() call.

 ===============================
 [ INFO: suspicious RCU usage. ]
 3.11.0-rc3+ #19 Not tainted
 -------------------------------
 net/ipv4/cipso_ipv4.c:1928 suspicious rcu_dereference_protected() usage!

 other info that might help us debug this:

 rcu_scheduler_active = 1, debug_locks = 0
 2 locks held by ping/731:
  #0:  (slock-AF_INET/1){+.-...}, at: [...] selinux_netlbl_socket_connect
  #1:  (rcu_read_lock){.+.+..}, at: [<...>] netlbl_conn_setattr

 stack backtrace:
 CPU: 1 PID: 731 Comm: ping Not tainted 3.11.0-rc3+ #19
 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
  0000000000000001 ffff88006f659d28 ffffffff81726b6a ffff88003732c500
  ffff88006f659d58 ffffffff810e4457 ffff88006b845a00 0000000000000000
  000000000000000c ffff880075aa2f50 ffff88006f659d90 ffffffff8169bec7
 Call Trace:
  [<ffffffff81726b6a>] dump_stack+0x54/0x74
  [<ffffffff810e4457>] lockdep_rcu_suspicious+0xe7/0x120
  [<ffffffff8169bec7>] cipso_v4_sock_setattr+0x187/0x1a0
  [<ffffffff8170f317>] netlbl_conn_setattr+0x187/0x190
  [<ffffffff8170f195>] ? netlbl_conn_setattr+0x5/0x190
  [<ffffffff8131ac9e>] selinux_netlbl_socket_connect+0xae/0xc0
  [<ffffffff81303025>] selinux_socket_connect+0x135/0x170
  [<ffffffff8119d127>] ? might_fault+0x57/0xb0
  [<ffffffff812fb146>] security_socket_connect+0x16/0x20
  [<ffffffff815d3ad3>] SYSC_connect+0x73/0x130
  [<ffffffff81739a85>] ? sysret_check+0x22/0x5d
  [<ffffffff810e5e2d>] ? trace_hardirqs_on_caller+0xfd/0x1c0
  [<ffffffff81373d4e>] ? trace_hardirqs_on_thunk+0x3a/0x3f
  [<ffffffff815d52be>] SyS_connect+0xe/0x10
  [<ffffffff81739a59>] system_call_fastpath+0x16/0x1b

Cc: stable@vger.kernel.org
Signed-off-by: Paul Moore <pmoore@redhat.com>
---
 security/selinux/netlabel.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/security/selinux/netlabel.c b/security/selinux/netlabel.c
index da4b8b233280..6235d052338b 100644
--- a/security/selinux/netlabel.c
+++ b/security/selinux/netlabel.c
@@ -442,8 +442,7 @@ int selinux_netlbl_socket_connect(struct sock *sk, struct sockaddr *addr)
 	    sksec->nlbl_state != NLBL_CONNLABELED)
 		return 0;
 
-	local_bh_disable();
-	bh_lock_sock_nested(sk);
+	lock_sock(sk);
 
 	/* connected sockets are allowed to disconnect when the address family
 	 * is set to AF_UNSPEC, if that is what is happening we want to reset
@@ -464,7 +463,6 @@ int selinux_netlbl_socket_connect(struct sock *sk, struct sockaddr *addr)
 		sksec->nlbl_state = NLBL_CONNLABELED;
 
 socket_connect_return:
-	bh_unlock_sock(sk);
-	local_bh_enable();
+	release_sock(sk);
 	return rc;
 }
-- 
cgit 


From 809373e29a183e4d4f0e4f56ef8b211c6219123c Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Fri, 6 Sep 2013 11:15:32 -0700
Subject: x86, build: move build output statistics away from stderr

When building on x86, the final image building step always emits stats
to stderr, even though this information is neither a warning nor an error:

  BUILD   arch/x86/boot/bzImage
Setup is 16188 bytes (padded to 16384 bytes).
System is 6368 kB
CRC cbe50c61

Validating automated builds would be cleaner if stderr did not have to
filter out these lines. Instead, change how tools/build is called, and
make the zoffset header unconditional, and write to a specified file
instead of to stdout, which can then be used for statistics, leaving
stderr open for legitimate warnings and errors, like the output from
die().

Signed-off-by: Kees Cook <keescook@chromium.org>
Link: http://lkml.kernel.org/r/20130906181532.GA31260@www.outflux.net
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/boot/Makefile      |  3 ++-
 arch/x86/boot/tools/build.c | 40 ++++++++++++++++++++++++----------------
 2 files changed, 26 insertions(+), 17 deletions(-)

diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile
index 379814bc41e3..dce69a256896 100644
--- a/arch/x86/boot/Makefile
+++ b/arch/x86/boot/Makefile
@@ -71,7 +71,8 @@ GCOV_PROFILE := n
 $(obj)/bzImage: asflags-y  := $(SVGA_MODE)
 
 quiet_cmd_image = BUILD   $@
-cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/zoffset.h > $@
+cmd_image = $(obj)/tools/build $(obj)/setup.bin $(obj)/vmlinux.bin \
+			       $(obj)/zoffset.h $@
 
 $(obj)/bzImage: $(obj)/setup.bin $(obj)/vmlinux.bin $(obj)/tools/build FORCE
 	$(call if_changed,image)
diff --git a/arch/x86/boot/tools/build.c b/arch/x86/boot/tools/build.c
index c941d6a8887f..8e15b22391fc 100644
--- a/arch/x86/boot/tools/build.c
+++ b/arch/x86/boot/tools/build.c
@@ -5,14 +5,15 @@
  */
 
 /*
- * This file builds a disk-image from two different files:
+ * This file builds a disk-image from three different files:
  *
  * - setup: 8086 machine code, sets up system parm
  * - system: 80386 code for actual system
+ * - zoffset.h: header with ZO_* defines
  *
- * It does some checking that all files are of the correct type, and
- * just writes the result to stdout, removing headers and padding to
- * the right amount. It also writes some system data to stderr.
+ * It does some checking that all files are of the correct type, and writes
+ * the result to the specified destination, removing headers and padding to
+ * the right amount. It also writes some system data to stdout.
  */
 
 /*
@@ -136,7 +137,7 @@ static void die(const char * str, ...)
 
 static void usage(void)
 {
-	die("Usage: build setup system [zoffset.h] [> image]");
+	die("Usage: build setup system zoffset.h image");
 }
 
 #ifdef CONFIG_EFI_STUB
@@ -265,7 +266,7 @@ int main(int argc, char ** argv)
 	int c;
 	u32 sys_size;
 	struct stat sb;
-	FILE *file;
+	FILE *file, *dest;
 	int fd;
 	void *kernel;
 	u32 crc = 0xffffffffUL;
@@ -280,10 +281,13 @@ int main(int argc, char ** argv)
 	startup_64 = 0x200;
 #endif
 
-	if (argc == 4)
-		parse_zoffset(argv[3]);
-	else if (argc != 3)
+	if (argc != 5)
 		usage();
+	parse_zoffset(argv[3]);
+
+	dest = fopen(argv[4], "w");
+	if (!dest)
+		die("Unable to write `%s': %m", argv[4]);
 
 	/* Copy the setup code */
 	file = fopen(argv[1], "r");
@@ -318,7 +322,7 @@ int main(int argc, char ** argv)
 	/* Set the default root device */
 	put_unaligned_le16(DEFAULT_ROOT_DEV, &buf[508]);
 
-	fprintf(stderr, "Setup is %d bytes (padded to %d bytes).\n", c, i);
+	printf("Setup is %d bytes (padded to %d bytes).\n", c, i);
 
 	/* Open and stat the kernel file */
 	fd = open(argv[2], O_RDONLY);
@@ -327,7 +331,7 @@ int main(int argc, char ** argv)
 	if (fstat(fd, &sb))
 		die("Unable to stat `%s': %m", argv[2]);
 	sz = sb.st_size;
-	fprintf (stderr, "System is %d kB\n", (sz+1023)/1024);
+	printf("System is %d kB\n", (sz+1023)/1024);
 	kernel = mmap(NULL, sz, PROT_READ, MAP_SHARED, fd, 0);
 	if (kernel == MAP_FAILED)
 		die("Unable to mmap '%s': %m", argv[2]);
@@ -348,27 +352,31 @@ int main(int argc, char ** argv)
 #endif
 
 	crc = partial_crc32(buf, i, crc);
-	if (fwrite(buf, 1, i, stdout) != i)
+	if (fwrite(buf, 1, i, dest) != i)
 		die("Writing setup failed");
 
 	/* Copy the kernel code */
 	crc = partial_crc32(kernel, sz, crc);
-	if (fwrite(kernel, 1, sz, stdout) != sz)
+	if (fwrite(kernel, 1, sz, dest) != sz)
 		die("Writing kernel failed");
 
 	/* Add padding leaving 4 bytes for the checksum */
 	while (sz++ < (sys_size*16) - 4) {
 		crc = partial_crc32_one('\0', crc);
-		if (fwrite("\0", 1, 1, stdout) != 1)
+		if (fwrite("\0", 1, 1, dest) != 1)
 			die("Writing padding failed");
 	}
 
 	/* Write the CRC */
-	fprintf(stderr, "CRC %x\n", crc);
+	printf("CRC %x\n", crc);
 	put_unaligned_le32(crc, buf);
-	if (fwrite(buf, 1, 4, stdout) != 4)
+	if (fwrite(buf, 1, 4, dest) != 4)
 		die("Writing CRC failed");
 
+	/* Catch any delayed write failures */
+	if (fclose(dest))
+		die("Writing image failed");
+
 	close(fd);
 
 	/* Everything is OK */
-- 
cgit 


From e2c2725338cb5c51e8f1eada2b3dfb938bdb03ae Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Sun, 1 Sep 2013 22:24:35 -0300
Subject: serial: imx: Use NULL as the last argument of add_preferred_console()

Commit f7d2c0bbd (serial: i.MX: evaluate linux,stdout-path property) introduced
the following sparse warning:

drivers/tty/serial/imx.c:1916:77: warning: Using plain integer as NULL pointer

Pass NULL as the last argument of add_preferred_console() instead of zero.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/imx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index a0ebbc9ce5cd..65d9b2f4882b 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1913,7 +1913,8 @@ static int serial_imx_probe_dt(struct imx_port *sport,
 	sport->devdata = of_id->data;
 
 	if (of_device_is_stdout_path(np))
-		add_preferred_console(imx_reg.cons->name, sport->port.line, 0);
+		add_preferred_console(imx_reg.cons->name, sport->port.line,
+				      NULL);
 
 	return 0;
 }
-- 
cgit 


From 965e260a064a35359bc6281aa76c39e3f43ed9ba Mon Sep 17 00:00:00 2001
From: Dave Jones <davej@redhat.com>
Date: Tue, 3 Sep 2013 17:13:23 -0400
Subject: tty: serial: Restrict ST ASC driver to only build on !ARM when
 COMPILE_TEST is set.

The Kconfig for this option suggests it's only relevant on STi SoCs,
so add depends to have it not show up on archs that won't ever run it.

Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index febd45cd5027..701ca60076ed 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -1512,6 +1512,7 @@ config SERIAL_FSL_LPUART_CONSOLE
 config SERIAL_ST_ASC
 	tristate "ST ASC serial port support"
 	select SERIAL_CORE
+	depends on ARM || COMPILE_TEST
 	help
 	  This driver is for the on-chip Asychronous Serial Controller on
 	  STMicroelectronics STi SoCs.
-- 
cgit 


From 12d493c791876519393a483fa46bc4893379d523 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Sun, 1 Sep 2013 19:34:06 +0100
Subject: serial: mfd: Replace MODULE_ALIAS with MODULE_DEVICE_TABLE

This is a PCI driver and should be auto-loaded based on PCI ID.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/mfd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/mfd.c b/drivers/tty/serial/mfd.c
index d3db042f649e..a187cd4b1e53 100644
--- a/drivers/tty/serial/mfd.c
+++ b/drivers/tty/serial/mfd.c
@@ -1504,4 +1504,4 @@ module_init(hsu_pci_init);
 module_exit(hsu_pci_exit);
 
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:medfield-hsu");
+MODULE_DEVICE_TABLE(pci, pci_ids);
-- 
cgit 


From 52592da32b85e8be7e6ab534059b9457b3dea4e5 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Sun, 1 Sep 2013 19:26:37 +0100
Subject: serial: pch_uart: Add MODULE_DEVICE_TABLE

pch_uart currently isn't auto-loaded if built as a module.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/pch_uart.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 52379e56a31e..e0fbf87478b9 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -2003,6 +2003,8 @@ module_exit(pch_uart_module_exit);
 
 MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("Intel EG20T PCH UART PCI Driver");
+MODULE_DEVICE_TABLE(pci, pch_uart_pci_id);
+
 module_param(default_baud, uint, S_IRUGO);
 MODULE_PARM_DESC(default_baud,
                  "Default BAUD for initial driver state and console (default 9600)");
-- 
cgit 


From 2797f6fb6727d8ac5127f88aee1fd059db0be24b Mon Sep 17 00:00:00 2001
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Thu, 5 Sep 2013 17:34:52 +0300
Subject: serial: 8250: don't change the fifo trigger level when using dma

DMA engines usually expect the fifo trigger level to be
aligned with the burst size. It should not be changed even
with small baud rates. This will fix an issue with
Designware DMA engine where the data can not be transferred
over UART with lower baud rates then 2400.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/8250_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c
index 570df9d2a5d2..e33d38cb170f 100644
--- a/drivers/tty/serial/8250/8250_core.c
+++ b/drivers/tty/serial/8250/8250_core.c
@@ -2322,7 +2322,7 @@ serial8250_do_set_termios(struct uart_port *port, struct ktermios *termios,
 
 	if (up->capabilities & UART_CAP_FIFO && port->fifosize > 1) {
 		fcr = uart_config[port->type].fcr;
-		if (baud < 2400 || fifo_bug) {
+		if ((baud < 2400 && !up->dma) || fifo_bug) {
 			fcr &= ~UART_FCR_TRIGGER_MASK;
 			fcr |= UART_FCR_TRIGGER_1;
 		}
-- 
cgit 


From fe95855539fd0a0e54412efc596adfe802a5c605 Mon Sep 17 00:00:00 2001
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Thu, 5 Sep 2013 17:34:53 +0300
Subject: serial: 8250_dw: don't limit DMA support to ACPI

It should be available for DT users as well. This does not
enable DMA by default except with ACPI. DT users can enable
DMA based on a property.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/8250_dw.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index daf710f5c3fc..d7a405b12600 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -56,11 +56,12 @@
 
 
 struct dw8250_data {
-	int		last_lcr;
-	int		last_mcr;
-	int		line;
-	struct clk	*clk;
-	u8		usr_reg;
+	u8			usr_reg;
+	int			last_lcr;
+	int			last_mcr;
+	int			line;
+	struct clk		*clk;
+	struct uart_8250_dma	dma;
 };
 
 static inline int dw8250_modify_msr(struct uart_port *p, int offset, int value)
@@ -241,7 +242,8 @@ static int dw8250_probe_of(struct uart_port *p,
 }
 
 #ifdef CONFIG_ACPI
-static int dw8250_probe_acpi(struct uart_8250_port *up)
+static int dw8250_probe_acpi(struct uart_8250_port *up,
+			     struct dw8250_data *data)
 {
 	const struct acpi_device_id *id;
 	struct uart_port *p = &up->port;
@@ -260,9 +262,7 @@ static int dw8250_probe_acpi(struct uart_8250_port *up)
 	if (!p->uartclk)
 		p->uartclk = (unsigned int)id->driver_data;
 
-	up->dma = devm_kzalloc(p->dev, sizeof(*up->dma), GFP_KERNEL);
-	if (!up->dma)
-		return -ENOMEM;
+	up->dma = &data->dma;
 
 	up->dma->rxconf.src_maxburst = p->fifosize / 4;
 	up->dma->txconf.dst_maxburst = p->fifosize / 4;
@@ -324,7 +324,7 @@ static int dw8250_probe(struct platform_device *pdev)
 		if (err)
 			return err;
 	} else if (ACPI_HANDLE(&pdev->dev)) {
-		err = dw8250_probe_acpi(&uart);
+		err = dw8250_probe_acpi(&uart, data);
 		if (err)
 			return err;
 	} else {
-- 
cgit 


From 7fb8c56c7fa0fa11168d3788d4591951bec27f4b Mon Sep 17 00:00:00 2001
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Thu, 5 Sep 2013 17:34:54 +0300
Subject: serial: 8250_dw: provide a filter for DMA channel detection

The channel IDs are set to -1 by default. It will prevent
dmaengine from trying to provide the first free channel if
it fails to allocate exclusive channel. This will fix an
issue with ACPI enumerated UARTs that do not support DMA
but still end up getting a DMA channel incorrectly.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/8250_dw.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index d7a405b12600..8edf7697fdb2 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -154,6 +154,14 @@ dw8250_do_pm(struct uart_port *port, unsigned int state, unsigned int old)
 		pm_runtime_put_sync_suspend(port->dev);
 }
 
+static bool dw8250_dma_filter(struct dma_chan *chan, void *param)
+{
+	struct dw8250_data *data = param;
+
+	return chan->chan_id == data->dma.tx_chan_id ||
+	       chan->chan_id == data->dma.rx_chan_id;
+}
+
 static void dw8250_setup_port(struct uart_8250_port *up)
 {
 	struct uart_port	*p = &up->port;
@@ -314,6 +322,12 @@ static int dw8250_probe(struct platform_device *pdev)
 		uart.port.uartclk = clk_get_rate(data->clk);
 	}
 
+	data->dma.rx_chan_id = -1;
+	data->dma.tx_chan_id = -1;
+	data->dma.rx_param = data;
+	data->dma.tx_param = data;
+	data->dma.fn = dw8250_dma_filter;
+
 	uart.port.iotype = UPIO_MEM;
 	uart.port.serial_in = dw8250_serial_in;
 	uart.port.serial_out = dw8250_serial_out;
-- 
cgit 


From 0d8570ad7ec99f4c89135657ea2821bdae78423f Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 14:06:45 +0900
Subject: serial: arc_uart: Remove casting the return value which is a void
 pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/arc_uart.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/arc_uart.c b/drivers/tty/serial/arc_uart.c
index 569872f4c9b8..c9f5c9dcc15c 100644
--- a/drivers/tty/serial/arc_uart.c
+++ b/drivers/tty/serial/arc_uart.c
@@ -533,7 +533,7 @@ arc_uart_init_one(struct platform_device *pdev, int dev_id)
 	unsigned long *plat_data;
 	struct arc_uart_port *uart = &arc_uart_ports[dev_id];
 
-	plat_data = (unsigned long *)dev_get_platdata(&pdev->dev);
+	plat_data = dev_get_platdata(&pdev->dev);
 	if (!plat_data)
 		return -ENODEV;
 
-- 
cgit 


From 5c02fab62e953a5281d7daa7bdd18892c4b43741 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 14:07:54 +0900
Subject: serial: mpsc: Remove casting the return value which is a void pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/mpsc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/mpsc.c b/drivers/tty/serial/mpsc.c
index 8d702677acc5..e30a3ca3cea3 100644
--- a/drivers/tty/serial/mpsc.c
+++ b/drivers/tty/serial/mpsc.c
@@ -2030,7 +2030,7 @@ static void mpsc_drv_get_platform_data(struct mpsc_port_info *pi,
 {
 	struct mpsc_pdata	*pdata;
 
-	pdata = (struct mpsc_pdata *)dev_get_platdata(&pd->dev);
+	pdata = dev_get_platdata(&pd->dev);
 
 	pi->port.uartclk = pdata->brg_clk_freq;
 	pi->port.iotype = UPIO_MEM;
-- 
cgit 


From 0e03e3f8ea2c8c1f1fe099932c1c4f34d44d5231 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 14:08:43 +0900
Subject: serial: bfin_uart: Remove casting the return value which is a void
 pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Sonic Zhang <sonic.zhang@analog.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/bfin_uart.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/tty/serial/bfin_uart.c b/drivers/tty/serial/bfin_uart.c
index 3c75e8e04028..74749a6d3565 100644
--- a/drivers/tty/serial/bfin_uart.c
+++ b/drivers/tty/serial/bfin_uart.c
@@ -1240,7 +1240,7 @@ static int bfin_serial_probe(struct platform_device *pdev)
 			 */
 #endif
 		ret = peripheral_request_list(
-			(unsigned short *)dev_get_platdata(&pdev->dev),
+			dev_get_platdata(&pdev->dev),
 			DRIVER_NAME);
 		if (ret) {
 			dev_err(&pdev->dev,
@@ -1358,8 +1358,7 @@ static int bfin_serial_probe(struct platform_device *pdev)
 out_error_unmap:
 		iounmap(uart->port.membase);
 out_error_free_peripherals:
-		peripheral_free_list(
-			(unsigned short *)dev_get_platdata(&pdev->dev));
+		peripheral_free_list(dev_get_platdata(&pdev->dev));
 out_error_free_mem:
 		kfree(uart);
 		bfin_serial_ports[pdev->id] = NULL;
@@ -1377,8 +1376,7 @@ static int bfin_serial_remove(struct platform_device *pdev)
 	if (uart) {
 		uart_remove_one_port(&bfin_serial_reg, &uart->port);
 		iounmap(uart->port.membase);
-		peripheral_free_list(
-			(unsigned short *)dev_get_platdata(&pdev->dev));
+		peripheral_free_list(dev_get_platdata(&pdev->dev));
 		kfree(uart);
 		bfin_serial_ports[pdev->id] = NULL;
 	}
@@ -1432,8 +1430,8 @@ static int bfin_earlyprintk_probe(struct platform_device *pdev)
 		return -ENOENT;
 	}
 
-	ret = peripheral_request_list(
-		(unsigned short *)dev_get_platdata(&pdev->dev), DRIVER_NAME);
+	ret = peripheral_request_list(dev_get_platdata(&pdev->dev),
+					DRIVER_NAME);
 	if (ret) {
 		dev_err(&pdev->dev,
 				"fail to request bfin serial peripherals\n");
@@ -1463,8 +1461,7 @@ static int bfin_earlyprintk_probe(struct platform_device *pdev)
 	return 0;
 
 out_error_free_peripherals:
-	peripheral_free_list(
-		(unsigned short *)dev_get_platdata(&pdev->dev));
+	peripheral_free_list(dev_get_platdata(&pdev->dev));
 
 	return ret;
 }
-- 
cgit 


From aaba105e66e98bb11e017eece341346bd3e91871 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 14:09:20 +0900
Subject: serial: bfin_sport_uart: Remove casting the return value which is a
 void pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/bfin_sport_uart.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/tty/serial/bfin_sport_uart.c b/drivers/tty/serial/bfin_sport_uart.c
index 87636cc61a21..4f229703328b 100644
--- a/drivers/tty/serial/bfin_sport_uart.c
+++ b/drivers/tty/serial/bfin_sport_uart.c
@@ -766,9 +766,8 @@ static int sport_uart_probe(struct platform_device *pdev)
 			return -ENOMEM;
 		}
 
-		ret = peripheral_request_list(
-			(unsigned short *)dev_get_platdata(&pdev->dev),
-			DRV_NAME);
+		ret = peripheral_request_list(dev_get_platdata(&pdev->dev),
+						DRV_NAME);
 		if (ret) {
 			dev_err(&pdev->dev,
 				"Fail to request SPORT peripherals\n");
@@ -844,8 +843,7 @@ static int sport_uart_probe(struct platform_device *pdev)
 out_error_unmap:
 		iounmap(sport->port.membase);
 out_error_free_peripherals:
-		peripheral_free_list(
-			(unsigned short *)dev_get_platdata(&pdev->dev));
+		peripheral_free_list(dev_get_platdata(&pdev->dev));
 out_error_free_mem:
 		kfree(sport);
 		bfin_sport_uart_ports[pdev->id] = NULL;
@@ -864,8 +862,7 @@ static int sport_uart_remove(struct platform_device *pdev)
 	if (sport) {
 		uart_remove_one_port(&sport_uart_reg, &sport->port);
 		iounmap(sport->port.membase);
-		peripheral_free_list(
-			(unsigned short *)dev_get_platdata(&pdev->dev));
+		peripheral_free_list(dev_get_platdata(&pdev->dev));
 		kfree(sport);
 		bfin_sport_uart_ports[pdev->id] = NULL;
 	}
-- 
cgit 


From 7a89c79a946d72597fb96a06a9a9e95ff6b832b4 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 14:09:55 +0900
Subject: serial: ifx6x60: Remove casting the return value which is a void
 pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/ifx6x60.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/ifx6x60.c b/drivers/tty/serial/ifx6x60.c
index af286e6713eb..590390970996 100644
--- a/drivers/tty/serial/ifx6x60.c
+++ b/drivers/tty/serial/ifx6x60.c
@@ -1008,7 +1008,7 @@ static int ifx_spi_spi_probe(struct spi_device *spi)
 		return -ENODEV;
 	}
 
-	pl_data = (struct ifx_modem_platform_data *)dev_get_platdata(&spi->dev);
+	pl_data = dev_get_platdata(&spi->dev);
 	if (!pl_data) {
 		dev_err(&spi->dev, "missing platform data!");
 		return -ENODEV;
-- 
cgit 


From d4aab2064adbd0660ab9cbfc3e93eae8216b41aa Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 14:10:30 +0900
Subject: serial: samsung: Remove casting the return value which is a void
 pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/samsung.c | 2 +-
 drivers/tty/serial/samsung.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index f3dfa19a1cb8..81f3dbabaaed 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -1254,7 +1254,7 @@ static int s3c24xx_serial_probe(struct platform_device *pdev)
 	ourport->baudclk = ERR_PTR(-EINVAL);
 	ourport->info = ourport->drv_data->info;
 	ourport->cfg = (dev_get_platdata(&pdev->dev)) ?
-			(struct s3c2410_uartcfg *)dev_get_platdata(&pdev->dev) :
+			dev_get_platdata(&pdev->dev) :
 			ourport->drv_data->def_cfg;
 
 	ourport->port.fifosize = (ourport->info->fifosize) ?
diff --git a/drivers/tty/serial/samsung.h b/drivers/tty/serial/samsung.h
index aaa617a6c499..8827e5424cef 100644
--- a/drivers/tty/serial/samsung.h
+++ b/drivers/tty/serial/samsung.h
@@ -63,7 +63,7 @@ struct s3c24xx_uart_port {
 
 /* conversion functions */
 
-#define s3c24xx_dev_to_port(__dev) (struct uart_port *)dev_get_drvdata(__dev)
+#define s3c24xx_dev_to_port(__dev) dev_get_drvdata(__dev)
 
 /* register access controls */
 
-- 
cgit 


From 4190390ad282e5f69bdb02af094c09787f34ca38 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 14:11:17 +0900
Subject: serial: mpc512x: Remove casting the return value which is a void
 pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/mpc52xx_uart.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/mpc52xx_uart.c b/drivers/tty/serial/mpc52xx_uart.c
index 5be1df39f9f5..e05a3b1a87c7 100644
--- a/drivers/tty/serial/mpc52xx_uart.c
+++ b/drivers/tty/serial/mpc52xx_uart.c
@@ -1766,7 +1766,7 @@ mpc52xx_uart_of_remove(struct platform_device *op)
 static int
 mpc52xx_uart_of_suspend(struct platform_device *op, pm_message_t state)
 {
-	struct uart_port *port = (struct uart_port *) platform_get_drvdata(op);
+	struct uart_port *port = platform_get_drvdata(op);
 
 	if (port)
 		uart_suspend_port(&mpc52xx_uart_driver, port);
@@ -1777,7 +1777,7 @@ mpc52xx_uart_of_suspend(struct platform_device *op, pm_message_t state)
 static int
 mpc52xx_uart_of_resume(struct platform_device *op)
 {
-	struct uart_port *port = (struct uart_port *) platform_get_drvdata(op);
+	struct uart_port *port = platform_get_drvdata(op);
 
 	if (port)
 		uart_resume_port(&mpc52xx_uart_driver, port);
-- 
cgit 


From a0f4ecf3494c9869d20f606e7e2b2f50f0e67a7f Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 26 Sep 2013 14:48:15 -0700
Subject: netfilter: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 include/linux/netfilter.h                        |  10 +-
 include/linux/netfilter/nf_conntrack_common.h    |   2 +-
 include/linux/netfilter/nf_conntrack_h323.h      |  14 +--
 include/linux/netfilter/nf_conntrack_proto_gre.h |   4 +-
 include/linux/netfilter/nf_conntrack_sip.h       |  57 +++++-----
 include/linux/netfilter/nfnetlink.h              |  28 ++---
 include/linux/netfilter/nfnetlink_acct.h         |   6 +-
 include/linux/netfilter/x_tables.h               | 128 +++++++++++------------
 include/linux/netfilter_bridge.h                 |   4 +-
 include/linux/netfilter_ipv4.h                   |   6 +-
 include/linux/netfilter_ipv6.h                   |  10 +-
 11 files changed, 133 insertions(+), 136 deletions(-)

diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index 708fe72ab913..61223c52414f 100644
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -35,7 +35,7 @@ static inline void nf_inet_addr_mask(const union nf_inet_addr *a1,
 	result->all[3] = a1->all[3] & mask->all[3];
 }
 
-extern int netfilter_init(void);
+int netfilter_init(void);
 
 /* Largest hook number + 1 */
 #define NF_MAX_HOOKS 8
@@ -208,7 +208,7 @@ int compat_nf_getsockopt(struct sock *sk, u_int8_t pf, int optval,
 /* Call this before modifying an existing packet: ensures it is
    modifiable and linear to the point you care about (writable_len).
    Returns true or false. */
-extern int skb_make_writable(struct sk_buff *skb, unsigned int writable_len);
+int skb_make_writable(struct sk_buff *skb, unsigned int writable_len);
 
 struct flowi;
 struct nf_queue_entry;
@@ -269,8 +269,8 @@ nf_checksum_partial(struct sk_buff *skb, unsigned int hook,
 	return csum;
 }
 
-extern int nf_register_afinfo(const struct nf_afinfo *afinfo);
-extern void nf_unregister_afinfo(const struct nf_afinfo *afinfo);
+int nf_register_afinfo(const struct nf_afinfo *afinfo);
+void nf_unregister_afinfo(const struct nf_afinfo *afinfo);
 
 #include <net/flow.h>
 extern void (*nf_nat_decode_session_hook)(struct sk_buff *, struct flowi *);
@@ -315,7 +315,7 @@ nf_nat_decode_session(struct sk_buff *skb, struct flowi *fl, u_int8_t family)
 
 #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
 extern void (*ip_ct_attach)(struct sk_buff *, const struct sk_buff *) __rcu;
-extern void nf_ct_attach(struct sk_buff *, const struct sk_buff *);
+void nf_ct_attach(struct sk_buff *, const struct sk_buff *);
 extern void (*nf_ct_destroy)(struct nf_conntrack *) __rcu;
 
 struct nf_conn;
diff --git a/include/linux/netfilter/nf_conntrack_common.h b/include/linux/netfilter/nf_conntrack_common.h
index 127d0b90604f..275505792664 100644
--- a/include/linux/netfilter/nf_conntrack_common.h
+++ b/include/linux/netfilter/nf_conntrack_common.h
@@ -23,6 +23,6 @@ struct ip_conntrack_stat {
 };
 
 /* call to create an explicit dependency on nf_conntrack. */
-extern void need_conntrack(void);
+void need_conntrack(void);
 
 #endif /* _NF_CONNTRACK_COMMON_H */
diff --git a/include/linux/netfilter/nf_conntrack_h323.h b/include/linux/netfilter/nf_conntrack_h323.h
index f381020eee92..858d9b214053 100644
--- a/include/linux/netfilter/nf_conntrack_h323.h
+++ b/include/linux/netfilter/nf_conntrack_h323.h
@@ -29,13 +29,13 @@ struct nf_ct_h323_master {
 
 struct nf_conn;
 
-extern int get_h225_addr(struct nf_conn *ct, unsigned char *data,
-			 TransportAddress *taddr,
-			 union nf_inet_addr *addr, __be16 *port);
-extern void nf_conntrack_h245_expect(struct nf_conn *new,
-				     struct nf_conntrack_expect *this);
-extern void nf_conntrack_q931_expect(struct nf_conn *new,
-				     struct nf_conntrack_expect *this);
+int get_h225_addr(struct nf_conn *ct, unsigned char *data,
+		  TransportAddress *taddr, union nf_inet_addr *addr,
+		  __be16 *port);
+void nf_conntrack_h245_expect(struct nf_conn *new,
+			      struct nf_conntrack_expect *this);
+void nf_conntrack_q931_expect(struct nf_conn *new,
+			      struct nf_conntrack_expect *this);
 extern int (*set_h245_addr_hook) (struct sk_buff *skb, unsigned int protoff,
 				  unsigned char **data, int dataoff,
 				  H245_TransportAddress *taddr,
diff --git a/include/linux/netfilter/nf_conntrack_proto_gre.h b/include/linux/netfilter/nf_conntrack_proto_gre.h
index 6a0664c0c451..ec2ffaf418c8 100644
--- a/include/linux/netfilter/nf_conntrack_proto_gre.h
+++ b/include/linux/netfilter/nf_conntrack_proto_gre.h
@@ -87,8 +87,8 @@ int nf_ct_gre_keymap_add(struct nf_conn *ct, enum ip_conntrack_dir dir,
 /* delete keymap entries */
 void nf_ct_gre_keymap_destroy(struct nf_conn *ct);
 
-extern void nf_ct_gre_keymap_flush(struct net *net);
-extern void nf_nat_need_gre(void);
+void nf_ct_gre_keymap_flush(struct net *net);
+void nf_nat_need_gre(void);
 
 #endif /* __KERNEL__ */
 #endif /* _CONNTRACK_PROTO_GRE_H */
diff --git a/include/linux/netfilter/nf_conntrack_sip.h b/include/linux/netfilter/nf_conntrack_sip.h
index ba7f571a2b1c..5cac0207b95d 100644
--- a/include/linux/netfilter/nf_conntrack_sip.h
+++ b/include/linux/netfilter/nf_conntrack_sip.h
@@ -157,35 +157,34 @@ extern unsigned int (*nf_nat_sdp_media_hook)(struct sk_buff *skb,
 					     unsigned int medialen,
 					     union nf_inet_addr *rtp_addr);
 
-extern int ct_sip_parse_request(const struct nf_conn *ct,
-				const char *dptr, unsigned int datalen,
-				unsigned int *matchoff, unsigned int *matchlen,
-				union nf_inet_addr *addr, __be16 *port);
-extern int ct_sip_get_header(const struct nf_conn *ct, const char *dptr,
-			     unsigned int dataoff, unsigned int datalen,
-			     enum sip_header_types type,
-			     unsigned int *matchoff, unsigned int *matchlen);
-extern int ct_sip_parse_header_uri(const struct nf_conn *ct, const char *dptr,
-				   unsigned int *dataoff, unsigned int datalen,
-				   enum sip_header_types type, int *in_header,
-				   unsigned int *matchoff, unsigned int *matchlen,
-				   union nf_inet_addr *addr, __be16 *port);
-extern int ct_sip_parse_address_param(const struct nf_conn *ct, const char *dptr,
-				      unsigned int dataoff, unsigned int datalen,
-				      const char *name,
-				      unsigned int *matchoff, unsigned int *matchlen,
-				      union nf_inet_addr *addr, bool delim);
-extern int ct_sip_parse_numerical_param(const struct nf_conn *ct, const char *dptr,
-					unsigned int off, unsigned int datalen,
-					const char *name,
-					unsigned int *matchoff, unsigned int *matchen,
-					unsigned int *val);
-
-extern int ct_sip_get_sdp_header(const struct nf_conn *ct, const char *dptr,
-				 unsigned int dataoff, unsigned int datalen,
-				 enum sdp_header_types type,
-				 enum sdp_header_types term,
-				 unsigned int *matchoff, unsigned int *matchlen);
+int ct_sip_parse_request(const struct nf_conn *ct, const char *dptr,
+			 unsigned int datalen, unsigned int *matchoff,
+			 unsigned int *matchlen, union nf_inet_addr *addr,
+			 __be16 *port);
+int ct_sip_get_header(const struct nf_conn *ct, const char *dptr,
+		      unsigned int dataoff, unsigned int datalen,
+		      enum sip_header_types type, unsigned int *matchoff,
+		      unsigned int *matchlen);
+int ct_sip_parse_header_uri(const struct nf_conn *ct, const char *dptr,
+			    unsigned int *dataoff, unsigned int datalen,
+			    enum sip_header_types type, int *in_header,
+			    unsigned int *matchoff, unsigned int *matchlen,
+			    union nf_inet_addr *addr, __be16 *port);
+int ct_sip_parse_address_param(const struct nf_conn *ct, const char *dptr,
+			       unsigned int dataoff, unsigned int datalen,
+			       const char *name, unsigned int *matchoff,
+			       unsigned int *matchlen, union nf_inet_addr *addr,
+			       bool delim);
+int ct_sip_parse_numerical_param(const struct nf_conn *ct, const char *dptr,
+				 unsigned int off, unsigned int datalen,
+				 const char *name, unsigned int *matchoff,
+				 unsigned int *matchen, unsigned int *val);
+
+int ct_sip_get_sdp_header(const struct nf_conn *ct, const char *dptr,
+			  unsigned int dataoff, unsigned int datalen,
+			  enum sdp_header_types type,
+			  enum sdp_header_types term,
+			  unsigned int *matchoff, unsigned int *matchlen);
 
 #endif /* __KERNEL__ */
 #endif /* __NF_CONNTRACK_SIP_H__ */
diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h
index cadb7402d7a7..4f68cd7141d2 100644
--- a/include/linux/netfilter/nfnetlink.h
+++ b/include/linux/netfilter/nfnetlink.h
@@ -25,20 +25,20 @@ struct nfnetlink_subsystem {
 	const struct nfnl_callback *cb;	/* callback for individual types */
 };
 
-extern int nfnetlink_subsys_register(const struct nfnetlink_subsystem *n);
-extern int nfnetlink_subsys_unregister(const struct nfnetlink_subsystem *n);
-
-extern int nfnetlink_has_listeners(struct net *net, unsigned int group);
-extern struct sk_buff *nfnetlink_alloc_skb(struct net *net, unsigned int size,
-					   u32 dst_portid, gfp_t gfp_mask);
-extern int nfnetlink_send(struct sk_buff *skb, struct net *net, u32 portid,
-			  unsigned int group, int echo, gfp_t flags);
-extern int nfnetlink_set_err(struct net *net, u32 portid, u32 group, int error);
-extern int nfnetlink_unicast(struct sk_buff *skb, struct net *net,
-			     u32 portid, int flags);
-
-extern void nfnl_lock(__u8 subsys_id);
-extern void nfnl_unlock(__u8 subsys_id);
+int nfnetlink_subsys_register(const struct nfnetlink_subsystem *n);
+int nfnetlink_subsys_unregister(const struct nfnetlink_subsystem *n);
+
+int nfnetlink_has_listeners(struct net *net, unsigned int group);
+struct sk_buff *nfnetlink_alloc_skb(struct net *net, unsigned int size,
+				    u32 dst_portid, gfp_t gfp_mask);
+int nfnetlink_send(struct sk_buff *skb, struct net *net, u32 portid,
+		   unsigned int group, int echo, gfp_t flags);
+int nfnetlink_set_err(struct net *net, u32 portid, u32 group, int error);
+int nfnetlink_unicast(struct sk_buff *skb, struct net *net, u32 portid,
+		      int flags);
+
+void nfnl_lock(__u8 subsys_id);
+void nfnl_unlock(__u8 subsys_id);
 
 #define MODULE_ALIAS_NFNL_SUBSYS(subsys) \
 	MODULE_ALIAS("nfnetlink-subsys-" __stringify(subsys))
diff --git a/include/linux/netfilter/nfnetlink_acct.h b/include/linux/netfilter/nfnetlink_acct.h
index bb4bbc9b7a18..b2e85e59f760 100644
--- a/include/linux/netfilter/nfnetlink_acct.h
+++ b/include/linux/netfilter/nfnetlink_acct.h
@@ -6,8 +6,8 @@
 
 struct nf_acct;
 
-extern struct nf_acct *nfnl_acct_find_get(const char *filter_name);
-extern void nfnl_acct_put(struct nf_acct *acct);
-extern void nfnl_acct_update(const struct sk_buff *skb, struct nf_acct *nfacct);
+struct nf_acct *nfnl_acct_find_get(const char *filter_name);
+void nfnl_acct_put(struct nf_acct *acct);
+void nfnl_acct_update(const struct sk_buff *skb, struct nf_acct *nfacct);
 
 #endif /* _NFNL_ACCT_H */
diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index dd49566315c6..a3e215bb0241 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -229,50 +229,48 @@ struct xt_table_info {
 
 #define XT_TABLE_INFO_SZ (offsetof(struct xt_table_info, entries) \
 			  + nr_cpu_ids * sizeof(char *))
-extern int xt_register_target(struct xt_target *target);
-extern void xt_unregister_target(struct xt_target *target);
-extern int xt_register_targets(struct xt_target *target, unsigned int n);
-extern void xt_unregister_targets(struct xt_target *target, unsigned int n);
-
-extern int xt_register_match(struct xt_match *target);
-extern void xt_unregister_match(struct xt_match *target);
-extern int xt_register_matches(struct xt_match *match, unsigned int n);
-extern void xt_unregister_matches(struct xt_match *match, unsigned int n);
-
-extern int xt_check_match(struct xt_mtchk_param *,
-			  unsigned int size, u_int8_t proto, bool inv_proto);
-extern int xt_check_target(struct xt_tgchk_param *,
-			   unsigned int size, u_int8_t proto, bool inv_proto);
-
-extern struct xt_table *xt_register_table(struct net *net,
-					  const struct xt_table *table,
-					  struct xt_table_info *bootstrap,
-					  struct xt_table_info *newinfo);
-extern void *xt_unregister_table(struct xt_table *table);
-
-extern struct xt_table_info *xt_replace_table(struct xt_table *table,
-					      unsigned int num_counters,
-					      struct xt_table_info *newinfo,
-					      int *error);
-
-extern struct xt_match *xt_find_match(u8 af, const char *name, u8 revision);
-extern struct xt_target *xt_find_target(u8 af, const char *name, u8 revision);
-extern struct xt_match *xt_request_find_match(u8 af, const char *name,
-					      u8 revision);
-extern struct xt_target *xt_request_find_target(u8 af, const char *name,
-						u8 revision);
-extern int xt_find_revision(u8 af, const char *name, u8 revision,
-			    int target, int *err);
-
-extern struct xt_table *xt_find_table_lock(struct net *net, u_int8_t af,
-					   const char *name);
-extern void xt_table_unlock(struct xt_table *t);
-
-extern int xt_proto_init(struct net *net, u_int8_t af);
-extern void xt_proto_fini(struct net *net, u_int8_t af);
-
-extern struct xt_table_info *xt_alloc_table_info(unsigned int size);
-extern void xt_free_table_info(struct xt_table_info *info);
+int xt_register_target(struct xt_target *target);
+void xt_unregister_target(struct xt_target *target);
+int xt_register_targets(struct xt_target *target, unsigned int n);
+void xt_unregister_targets(struct xt_target *target, unsigned int n);
+
+int xt_register_match(struct xt_match *target);
+void xt_unregister_match(struct xt_match *target);
+int xt_register_matches(struct xt_match *match, unsigned int n);
+void xt_unregister_matches(struct xt_match *match, unsigned int n);
+
+int xt_check_match(struct xt_mtchk_param *, unsigned int size, u_int8_t proto,
+		   bool inv_proto);
+int xt_check_target(struct xt_tgchk_param *, unsigned int size, u_int8_t proto,
+		    bool inv_proto);
+
+struct xt_table *xt_register_table(struct net *net,
+				   const struct xt_table *table,
+				   struct xt_table_info *bootstrap,
+				   struct xt_table_info *newinfo);
+void *xt_unregister_table(struct xt_table *table);
+
+struct xt_table_info *xt_replace_table(struct xt_table *table,
+				       unsigned int num_counters,
+				       struct xt_table_info *newinfo,
+				       int *error);
+
+struct xt_match *xt_find_match(u8 af, const char *name, u8 revision);
+struct xt_target *xt_find_target(u8 af, const char *name, u8 revision);
+struct xt_match *xt_request_find_match(u8 af, const char *name, u8 revision);
+struct xt_target *xt_request_find_target(u8 af, const char *name, u8 revision);
+int xt_find_revision(u8 af, const char *name, u8 revision, int target,
+		     int *err);
+
+struct xt_table *xt_find_table_lock(struct net *net, u_int8_t af,
+				    const char *name);
+void xt_table_unlock(struct xt_table *t);
+
+int xt_proto_init(struct net *net, u_int8_t af);
+void xt_proto_fini(struct net *net, u_int8_t af);
+
+struct xt_table_info *xt_alloc_table_info(unsigned int size);
+void xt_free_table_info(struct xt_table_info *info);
 
 /**
  * xt_recseq - recursive seqcount for netfilter use
@@ -353,8 +351,8 @@ static inline unsigned long ifname_compare_aligned(const char *_a,
 	return ret;
 }
 
-extern struct nf_hook_ops *xt_hook_link(const struct xt_table *, nf_hookfn *);
-extern void xt_hook_unlink(const struct xt_table *, struct nf_hook_ops *);
+struct nf_hook_ops *xt_hook_link(const struct xt_table *, nf_hookfn *);
+void xt_hook_unlink(const struct xt_table *, struct nf_hook_ops *);
 
 #ifdef CONFIG_COMPAT
 #include <net/compat.h>
@@ -414,25 +412,25 @@ struct _compat_xt_align {
 
 #define COMPAT_XT_ALIGN(s) __ALIGN_KERNEL((s), __alignof__(struct _compat_xt_align))
 
-extern void xt_compat_lock(u_int8_t af);
-extern void xt_compat_unlock(u_int8_t af);
-
-extern int xt_compat_add_offset(u_int8_t af, unsigned int offset, int delta);
-extern void xt_compat_flush_offsets(u_int8_t af);
-extern void xt_compat_init_offsets(u_int8_t af, unsigned int number);
-extern int xt_compat_calc_jump(u_int8_t af, unsigned int offset);
-
-extern int xt_compat_match_offset(const struct xt_match *match);
-extern int xt_compat_match_from_user(struct xt_entry_match *m,
-				     void **dstptr, unsigned int *size);
-extern int xt_compat_match_to_user(const struct xt_entry_match *m,
-				   void __user **dstptr, unsigned int *size);
-
-extern int xt_compat_target_offset(const struct xt_target *target);
-extern void xt_compat_target_from_user(struct xt_entry_target *t,
-				       void **dstptr, unsigned int *size);
-extern int xt_compat_target_to_user(const struct xt_entry_target *t,
-				    void __user **dstptr, unsigned int *size);
+void xt_compat_lock(u_int8_t af);
+void xt_compat_unlock(u_int8_t af);
+
+int xt_compat_add_offset(u_int8_t af, unsigned int offset, int delta);
+void xt_compat_flush_offsets(u_int8_t af);
+void xt_compat_init_offsets(u_int8_t af, unsigned int number);
+int xt_compat_calc_jump(u_int8_t af, unsigned int offset);
+
+int xt_compat_match_offset(const struct xt_match *match);
+int xt_compat_match_from_user(struct xt_entry_match *m, void **dstptr,
+			      unsigned int *size);
+int xt_compat_match_to_user(const struct xt_entry_match *m,
+			    void __user **dstptr, unsigned int *size);
+
+int xt_compat_target_offset(const struct xt_target *target);
+void xt_compat_target_from_user(struct xt_entry_target *t, void **dstptr,
+				unsigned int *size);
+int xt_compat_target_to_user(const struct xt_entry_target *t,
+			     void __user **dstptr, unsigned int *size);
 
 #endif /* CONFIG_COMPAT */
 #endif /* _X_TABLES_H */
diff --git a/include/linux/netfilter_bridge.h b/include/linux/netfilter_bridge.h
index dfb4d9e52bcb..8ab1c278b66d 100644
--- a/include/linux/netfilter_bridge.h
+++ b/include/linux/netfilter_bridge.h
@@ -25,7 +25,7 @@ enum nf_br_hook_priorities {
 #define BRNF_PPPoE			0x20
 
 /* Only used in br_forward.c */
-extern int nf_bridge_copy_header(struct sk_buff *skb);
+int nf_bridge_copy_header(struct sk_buff *skb);
 static inline int nf_bridge_maybe_copy_header(struct sk_buff *skb)
 {
 	if (skb->nf_bridge &&
@@ -53,7 +53,7 @@ static inline unsigned int nf_bridge_mtu_reduction(const struct sk_buff *skb)
 	return 0;
 }
 
-extern int br_handle_frame_finish(struct sk_buff *skb);
+int br_handle_frame_finish(struct sk_buff *skb);
 /* Only used in br_device.c */
 static inline int br_nf_pre_routing_finish_bridge_slow(struct sk_buff *skb)
 {
diff --git a/include/linux/netfilter_ipv4.h b/include/linux/netfilter_ipv4.h
index dfaf116b3e81..6e4591bb54d4 100644
--- a/include/linux/netfilter_ipv4.h
+++ b/include/linux/netfilter_ipv4.h
@@ -6,7 +6,7 @@
 
 #include <uapi/linux/netfilter_ipv4.h>
 
-extern int ip_route_me_harder(struct sk_buff *skb, unsigned addr_type);
-extern __sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int hook,
-				   unsigned int dataoff, u_int8_t protocol);
+int ip_route_me_harder(struct sk_buff *skb, unsigned addr_type);
+__sum16 nf_ip_checksum(struct sk_buff *skb, unsigned int hook,
+		       unsigned int dataoff, u_int8_t protocol);
 #endif /*__LINUX_IP_NETFILTER_H*/
diff --git a/include/linux/netfilter_ipv6.h b/include/linux/netfilter_ipv6.h
index 2d4df6ce043e..64dad1cc1a4b 100644
--- a/include/linux/netfilter_ipv6.h
+++ b/include/linux/netfilter_ipv6.h
@@ -11,12 +11,12 @@
 
 
 #ifdef CONFIG_NETFILTER
-extern int ip6_route_me_harder(struct sk_buff *skb);
-extern __sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
-				    unsigned int dataoff, u_int8_t protocol);
+int ip6_route_me_harder(struct sk_buff *skb);
+__sum16 nf_ip6_checksum(struct sk_buff *skb, unsigned int hook,
+			unsigned int dataoff, u_int8_t protocol);
 
-extern int ipv6_netfilter_init(void);
-extern void ipv6_netfilter_fini(void);
+int ipv6_netfilter_init(void);
+void ipv6_netfilter_fini(void);
 
 /*
  * Hook functions for ipv6 to allow xt_* modules to be built-in even
-- 
cgit 


From bcac3769ca6d6278f93afb6cc2b234d260ee5951 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 11 Sep 2013 22:29:03 -0400
Subject: sysfs: drop semicolon from to_sysfs_dirent() definition

The expansion of to_sysfs_dirent() contains an unncessary trailing
semicolon making it impossible to use in the middle of statements.
Drop it.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/dir.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 4d83cedb9fcb..834c64cb7f88 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -28,7 +28,7 @@
 DEFINE_MUTEX(sysfs_mutex);
 DEFINE_SPINLOCK(sysfs_assoc_lock);
 
-#define to_sysfs_dirent(X) rb_entry((X), struct sysfs_dirent, s_rb);
+#define to_sysfs_dirent(X) rb_entry((X), struct sysfs_dirent, s_rb)
 
 static DEFINE_SPINLOCK(sysfs_ino_lock);
 static DEFINE_IDA(sysfs_ino_ida);
-- 
cgit 


From 58292cbe6669d74498a5f08db13e57cb3bcfb81d Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 11 Sep 2013 22:29:04 -0400
Subject: sysfs: make attr namespace interface less convoluted

sysfs ns (namespace) implementation became more convoluted than
necessary while trying to hide ns information from visible interface.
The relatively recent attr ns support is a good example.

* attr ns tag is determined by sysfs_ops->namespace() callback while
  dir tag is determined by kobj_type->namespace().  The placement is
  arbitrary.

* Instead of performing operations with explicit ns tag, the namespace
  callback is routed through sysfs_attr_ns(), sysfs_ops->namespace(),
  class_attr_namespace(), class_attr->namespace().  It's not simpler
  in any sense.  The only thing this convolution does is traversing
  the whole stack backwards.

The namespace callbacks are unncessary because the operations involved
are inherently synchronous.  The information can be provided in in
straight-forward top-down direction and reversing that direction is
unnecessary and against basic design principles.

This backward interface is unnecessarily convoluted and hinders
properly separating out sysfs from driver model / kobject for proper
layering.  This patch updates attr ns support such that

* sysfs_ops->namespace() and class_attr->namespace() are dropped.

* sysfs_{create|remove}_file_ns(), which take explicit @ns param, are
  added and sysfs_{create|remove}_file() are now simple wrappers
  around the ns aware functions.

* ns handling is dropped from sysfs_chmod_file().  Nobody uses it at
  this point.  sysfs_chmod_file_ns() can be added later if necessary.

* Explicit @ns is propagated through class_{create|remove}_file_ns()
  and netdev_class_{create|remove}_file_ns().

* driver/net/bonding which is currently the only user of attr
  namespace is updated to use netdev_class_{create|remove}_file_ns()
  with @bh->net as the ns tag instead of using the namespace callback.

This patch should be an equivalent conversion without any functional
difference.  It makes the code easier to follow, reduces lines of code
a bit and helps proper separation and layering.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Kay Sievers <kay@vrfy.org>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/base/class.c             | 29 ++++--------
 drivers/net/bonding/bond_sysfs.c | 14 ++----
 fs/sysfs/file.c                  | 95 ++++++++++------------------------------
 fs/sysfs/group.c                 |  7 +--
 fs/sysfs/sysfs.h                 |  5 ++-
 include/linux/device.h           | 24 +++++++---
 include/linux/netdevice.h        | 16 ++++++-
 include/linux/sysfs.h            | 31 +++++++++----
 net/core/net-sysfs.c             | 14 +++---
 9 files changed, 106 insertions(+), 129 deletions(-)

diff --git a/drivers/base/class.c b/drivers/base/class.c
index 8b7818b80056..f96f70419a78 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -47,18 +47,6 @@ static ssize_t class_attr_store(struct kobject *kobj, struct attribute *attr,
 	return ret;
 }
 
-static const void *class_attr_namespace(struct kobject *kobj,
-					const struct attribute *attr)
-{
-	struct class_attribute *class_attr = to_class_attr(attr);
-	struct subsys_private *cp = to_subsys_private(kobj);
-	const void *ns = NULL;
-
-	if (class_attr->namespace)
-		ns = class_attr->namespace(cp->class, class_attr);
-	return ns;
-}
-
 static void class_release(struct kobject *kobj)
 {
 	struct subsys_private *cp = to_subsys_private(kobj);
@@ -86,7 +74,6 @@ static const struct kobj_ns_type_operations *class_child_ns_type(struct kobject
 static const struct sysfs_ops class_sysfs_ops = {
 	.show	   = class_attr_show,
 	.store	   = class_attr_store,
-	.namespace = class_attr_namespace,
 };
 
 static struct kobj_type class_ktype = {
@@ -99,21 +86,23 @@ static struct kobj_type class_ktype = {
 static struct kset *class_kset;
 
 
-int class_create_file(struct class *cls, const struct class_attribute *attr)
+int class_create_file_ns(struct class *cls, const struct class_attribute *attr,
+			 const void *ns)
 {
 	int error;
 	if (cls)
-		error = sysfs_create_file(&cls->p->subsys.kobj,
-					  &attr->attr);
+		error = sysfs_create_file_ns(&cls->p->subsys.kobj,
+					     &attr->attr, ns);
 	else
 		error = -EINVAL;
 	return error;
 }
 
-void class_remove_file(struct class *cls, const struct class_attribute *attr)
+void class_remove_file_ns(struct class *cls, const struct class_attribute *attr,
+			  const void *ns)
 {
 	if (cls)
-		sysfs_remove_file(&cls->p->subsys.kobj, &attr->attr);
+		sysfs_remove_file_ns(&cls->p->subsys.kobj, &attr->attr, ns);
 }
 
 static struct class *class_get(struct class *cls)
@@ -600,8 +589,8 @@ int __init classes_init(void)
 	return 0;
 }
 
-EXPORT_SYMBOL_GPL(class_create_file);
-EXPORT_SYMBOL_GPL(class_remove_file);
+EXPORT_SYMBOL_GPL(class_create_file_ns);
+EXPORT_SYMBOL_GPL(class_remove_file_ns);
 EXPORT_SYMBOL_GPL(class_unregister);
 EXPORT_SYMBOL_GPL(class_destroy);
 
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index c29b836749b6..ec9b6460a38d 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -149,14 +149,6 @@ err_no_cmd:
 	return -EPERM;
 }
 
-static const void *bonding_namespace(struct class *cls,
-				     const struct class_attribute *attr)
-{
-	const struct bond_net *bn =
-		container_of(attr, struct bond_net, class_attr_bonding_masters);
-	return bn->net;
-}
-
 /* class attribute for bond_masters file.  This ends up in /sys/class/net */
 static const struct class_attribute class_attr_bonding_masters = {
 	.attr = {
@@ -165,7 +157,6 @@ static const struct class_attribute class_attr_bonding_masters = {
 	},
 	.show = bonding_show_bonds,
 	.store = bonding_store_bonds,
-	.namespace = bonding_namespace,
 };
 
 int bond_create_slave_symlinks(struct net_device *master,
@@ -1787,7 +1778,8 @@ int bond_create_sysfs(struct bond_net *bn)
 	bn->class_attr_bonding_masters = class_attr_bonding_masters;
 	sysfs_attr_init(&bn->class_attr_bonding_masters.attr);
 
-	ret = netdev_class_create_file(&bn->class_attr_bonding_masters);
+	ret = netdev_class_create_file_ns(&bn->class_attr_bonding_masters,
+					  bn->net);
 	/*
 	 * Permit multiple loads of the module by ignoring failures to
 	 * create the bonding_masters sysfs file.  Bonding devices
@@ -1817,7 +1809,7 @@ int bond_create_sysfs(struct bond_net *bn)
  */
 void bond_destroy_sysfs(struct bond_net *bn)
 {
-	netdev_class_remove_file(&bn->class_attr_bonding_masters);
+	netdev_class_remove_file_ns(&bn->class_attr_bonding_masters, bn->net);
 }
 
 /*
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 15ef5eb13663..e784340f1599 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -485,58 +485,15 @@ const struct file_operations sysfs_file_operations = {
 	.poll		= sysfs_poll,
 };
 
-static int sysfs_attr_ns(struct kobject *kobj, const struct attribute *attr,
-			 const void **pns)
-{
-	struct sysfs_dirent *dir_sd = kobj->sd;
-	const struct sysfs_ops *ops;
-	const void *ns = NULL;
-	int err;
-
-	if (!dir_sd) {
-		WARN(1, KERN_ERR "sysfs: kobject %s without dirent\n",
-			kobject_name(kobj));
-		return -ENOENT;
-	}
-
-	err = 0;
-	if (!sysfs_ns_type(dir_sd))
-		goto out;
-
-	err = -EINVAL;
-	if (!kobj->ktype)
-		goto out;
-	ops = kobj->ktype->sysfs_ops;
-	if (!ops)
-		goto out;
-	if (!ops->namespace)
-		goto out;
-
-	err = 0;
-	ns = ops->namespace(kobj, attr);
-out:
-	if (err) {
-		WARN(1, KERN_ERR
-		     "missing sysfs namespace attribute operation for kobject: %s\n",
-		     kobject_name(kobj));
-	}
-	*pns = ns;
-	return err;
-}
-
-int sysfs_add_file_mode(struct sysfs_dirent *dir_sd,
-			const struct attribute *attr, int type, umode_t amode)
+int sysfs_add_file_mode_ns(struct sysfs_dirent *dir_sd,
+			   const struct attribute *attr, int type,
+			   umode_t amode, const void *ns)
 {
 	umode_t mode = (amode & S_IALLUGO) | S_IFREG;
 	struct sysfs_addrm_cxt acxt;
 	struct sysfs_dirent *sd;
-	const void *ns;
 	int rc;
 
-	rc = sysfs_attr_ns(dir_sd->s_dir.kobj, attr, &ns);
-	if (rc)
-		return rc;
-
 	sd = sysfs_new_dirent(attr->name, mode, type);
 	if (!sd)
 		return -ENOMEM;
@@ -559,23 +516,25 @@ int sysfs_add_file_mode(struct sysfs_dirent *dir_sd,
 int sysfs_add_file(struct sysfs_dirent *dir_sd, const struct attribute *attr,
 		   int type)
 {
-	return sysfs_add_file_mode(dir_sd, attr, type, attr->mode);
+	return sysfs_add_file_mode_ns(dir_sd, attr, type, attr->mode, NULL);
 }
 
-
 /**
- *	sysfs_create_file - create an attribute file for an object.
- *	@kobj:	object we're creating for.
- *	@attr:	attribute descriptor.
+ * sysfs_create_file_ns - create an attribute file for an object with custom ns
+ * @kobj: object we're creating for
+ * @attr: attribute descriptor
+ * @ns: namespace the new file should belong to
  */
-int sysfs_create_file(struct kobject *kobj, const struct attribute *attr)
+int sysfs_create_file_ns(struct kobject *kobj, const struct attribute *attr,
+			 const void *ns)
 {
 	BUG_ON(!kobj || !kobj->sd || !attr);
 
-	return sysfs_add_file(kobj->sd, attr, SYSFS_KOBJ_ATTR);
+	return sysfs_add_file_mode_ns(kobj->sd, attr, SYSFS_KOBJ_ATTR,
+				      attr->mode, ns);
 
 }
-EXPORT_SYMBOL_GPL(sysfs_create_file);
+EXPORT_SYMBOL_GPL(sysfs_create_file_ns);
 
 int sysfs_create_files(struct kobject *kobj, const struct attribute **ptr)
 {
@@ -630,17 +589,12 @@ int sysfs_chmod_file(struct kobject *kobj, const struct attribute *attr,
 {
 	struct sysfs_dirent *sd;
 	struct iattr newattrs;
-	const void *ns;
 	int rc;
 
-	rc = sysfs_attr_ns(kobj, attr, &ns);
-	if (rc)
-		return rc;
-
 	mutex_lock(&sysfs_mutex);
 
 	rc = -ENOENT;
-	sd = sysfs_find_dirent(kobj->sd, ns, attr->name);
+	sd = sysfs_find_dirent(kobj->sd, NULL, attr->name);
 	if (!sd)
 		goto out;
 
@@ -655,22 +609,21 @@ int sysfs_chmod_file(struct kobject *kobj, const struct attribute *attr,
 EXPORT_SYMBOL_GPL(sysfs_chmod_file);
 
 /**
- *	sysfs_remove_file - remove an object attribute.
- *	@kobj:	object we're acting for.
- *	@attr:	attribute descriptor.
+ * sysfs_remove_file_ns - remove an object attribute with a custom ns tag
+ * @kobj: object we're acting for
+ * @attr: attribute descriptor
+ * @ns: namespace tag of the file to remove
  *
- *	Hash the attribute name and kill the victim.
+ * Hash the attribute name and namespace tag and kill the victim.
  */
-void sysfs_remove_file(struct kobject *kobj, const struct attribute *attr)
+void sysfs_remove_file_ns(struct kobject *kobj, const struct attribute *attr,
+			  const void *ns)
 {
-	const void *ns;
-
-	if (sysfs_attr_ns(kobj, attr, &ns))
-		return;
+	struct sysfs_dirent *dir_sd = kobj->sd;
 
-	sysfs_hash_and_remove(kobj->sd, ns, attr->name);
+	sysfs_hash_and_remove(dir_sd, ns, attr->name);
 }
-EXPORT_SYMBOL_GPL(sysfs_remove_file);
+EXPORT_SYMBOL_GPL(sysfs_remove_file_ns);
 
 void sysfs_remove_files(struct kobject *kobj, const struct attribute **ptr)
 {
diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c
index 5f92cd2f61c1..25c78f23dae8 100644
--- a/fs/sysfs/group.c
+++ b/fs/sysfs/group.c
@@ -56,9 +56,10 @@ static int create_files(struct sysfs_dirent *dir_sd, struct kobject *kobj,
 				if (!mode)
 					continue;
 			}
-			error = sysfs_add_file_mode(dir_sd, *attr,
-						    SYSFS_KOBJ_ATTR,
-						    (*attr)->mode | mode);
+			error = sysfs_add_file_mode_ns(dir_sd, *attr,
+						       SYSFS_KOBJ_ATTR,
+						       (*attr)->mode | mode,
+						       NULL);
 			if (unlikely(error))
 				break;
 		}
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index b6deca3e301d..a96da2559db2 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -230,8 +230,9 @@ extern const struct file_operations sysfs_file_operations;
 int sysfs_add_file(struct sysfs_dirent *dir_sd,
 		   const struct attribute *attr, int type);
 
-int sysfs_add_file_mode(struct sysfs_dirent *dir_sd,
-			const struct attribute *attr, int type, umode_t amode);
+int sysfs_add_file_mode_ns(struct sysfs_dirent *dir_sd,
+			   const struct attribute *attr, int type,
+			   umode_t amode, const void *ns);
 /*
  * bin.c
  */
diff --git a/include/linux/device.h b/include/linux/device.h
index 2a9d6ed59579..ce690ea34547 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -427,8 +427,6 @@ struct class_attribute {
 			char *buf);
 	ssize_t (*store)(struct class *class, struct class_attribute *attr,
 			const char *buf, size_t count);
-	const void *(*namespace)(struct class *class,
-				 const struct class_attribute *attr);
 };
 
 #define CLASS_ATTR(_name, _mode, _show, _store) \
@@ -438,10 +436,24 @@ struct class_attribute {
 #define CLASS_ATTR_RO(_name) \
 	struct class_attribute class_attr_##_name = __ATTR_RO(_name)
 
-extern int __must_check class_create_file(struct class *class,
-					  const struct class_attribute *attr);
-extern void class_remove_file(struct class *class,
-			      const struct class_attribute *attr);
+extern int __must_check class_create_file_ns(struct class *class,
+					     const struct class_attribute *attr,
+					     const void *ns);
+extern void class_remove_file_ns(struct class *class,
+				 const struct class_attribute *attr,
+				 const void *ns);
+
+static inline int __must_check class_create_file(struct class *class,
+					const struct class_attribute *attr)
+{
+	return class_create_file_ns(class, attr, NULL);
+}
+
+static inline void class_remove_file(struct class *class,
+				     const struct class_attribute *attr)
+{
+	return class_remove_file_ns(class, attr, NULL);
+}
 
 /* Simple class attribute that is just a static string */
 struct class_attribute_string {
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 3de49aca4519..42421ed49a47 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2873,8 +2873,20 @@ extern int __init dev_proc_init(void);
 #define dev_proc_init() 0
 #endif
 
-extern int netdev_class_create_file(struct class_attribute *class_attr);
-extern void netdev_class_remove_file(struct class_attribute *class_attr);
+extern int netdev_class_create_file_ns(struct class_attribute *class_attr,
+				       const void *ns);
+extern void netdev_class_remove_file_ns(struct class_attribute *class_attr,
+					const void *ns);
+
+static inline int netdev_class_create_file(struct class_attribute *class_attr)
+{
+	return netdev_class_create_file_ns(class_attr, NULL);
+}
+
+static inline void netdev_class_remove_file(struct class_attribute *class_attr)
+{
+	netdev_class_remove_file_ns(class_attr, NULL);
+}
 
 extern struct kobj_ns_type_operations net_ns_type_operations;
 
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 11baec7c9b26..82f7fac78e77 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -173,7 +173,6 @@ struct bin_attribute bin_attr_##_name = __BIN_ATTR_RW(_name, _size)
 struct sysfs_ops {
 	ssize_t	(*show)(struct kobject *, struct attribute *, char *);
 	ssize_t	(*store)(struct kobject *, struct attribute *, const char *, size_t);
-	const void *(*namespace)(struct kobject *, const struct attribute *);
 };
 
 struct sysfs_dirent;
@@ -189,13 +188,15 @@ int __must_check sysfs_rename_dir(struct kobject *kobj, const char *new_name);
 int __must_check sysfs_move_dir(struct kobject *kobj,
 				struct kobject *new_parent_kobj);
 
-int __must_check sysfs_create_file(struct kobject *kobj,
-				   const struct attribute *attr);
+int __must_check sysfs_create_file_ns(struct kobject *kobj,
+				      const struct attribute *attr,
+				      const void *ns);
 int __must_check sysfs_create_files(struct kobject *kobj,
 				   const struct attribute **attr);
 int __must_check sysfs_chmod_file(struct kobject *kobj,
 				  const struct attribute *attr, umode_t mode);
-void sysfs_remove_file(struct kobject *kobj, const struct attribute *attr);
+void sysfs_remove_file_ns(struct kobject *kobj, const struct attribute *attr,
+			  const void *ns);
 void sysfs_remove_files(struct kobject *kobj, const struct attribute **attr);
 
 int __must_check sysfs_create_bin_file(struct kobject *kobj,
@@ -277,8 +278,9 @@ static inline int sysfs_move_dir(struct kobject *kobj,
 	return 0;
 }
 
-static inline int sysfs_create_file(struct kobject *kobj,
-				    const struct attribute *attr)
+static inline int sysfs_create_file_ns(struct kobject *kobj,
+				       const struct attribute *attr,
+				       const void *ns)
 {
 	return 0;
 }
@@ -295,8 +297,9 @@ static inline int sysfs_chmod_file(struct kobject *kobj,
 	return 0;
 }
 
-static inline void sysfs_remove_file(struct kobject *kobj,
-				     const struct attribute *attr)
+static inline void sysfs_remove_file_ns(struct kobject *kobj,
+					const struct attribute *attr,
+					const void *ns)
 {
 }
 
@@ -435,4 +438,16 @@ static inline int __must_check sysfs_init(void)
 
 #endif /* CONFIG_SYSFS */
 
+static inline int __must_check sysfs_create_file(struct kobject *kobj,
+						 const struct attribute *attr)
+{
+	return sysfs_create_file_ns(kobj, attr, NULL);
+}
+
+static inline void sysfs_remove_file(struct kobject *kobj,
+				     const struct attribute *attr)
+{
+	return sysfs_remove_file_ns(kobj, attr, NULL);
+}
+
 #endif /* _SYSFS_H_ */
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index d954b56b4e47..325dee863e46 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -1344,17 +1344,19 @@ int netdev_register_kobject(struct net_device *net)
 	return error;
 }
 
-int netdev_class_create_file(struct class_attribute *class_attr)
+int netdev_class_create_file_ns(struct class_attribute *class_attr,
+				const void *ns)
 {
-	return class_create_file(&net_class, class_attr);
+	return class_create_file_ns(&net_class, class_attr, ns);
 }
-EXPORT_SYMBOL(netdev_class_create_file);
+EXPORT_SYMBOL(netdev_class_create_file_ns);
 
-void netdev_class_remove_file(struct class_attribute *class_attr)
+void netdev_class_remove_file_ns(struct class_attribute *class_attr,
+				 const void *ns)
 {
-	class_remove_file(&net_class, class_attr);
+	class_remove_file_ns(&net_class, class_attr, ns);
 }
-EXPORT_SYMBOL(netdev_class_remove_file);
+EXPORT_SYMBOL(netdev_class_remove_file_ns);
 
 int netdev_kobject_init(void)
 {
-- 
cgit 


From 7965bd4d71ef7cf1db00afb9e406ddfc13443c13 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 26 Sep 2013 14:48:15 -0700
Subject: net.h/skbuff.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 include/linux/net.h    |  82 ++++++++--------
 include/linux/skbuff.h | 250 ++++++++++++++++++++++---------------------------
 2 files changed, 148 insertions(+), 184 deletions(-)

diff --git a/include/linux/net.h b/include/linux/net.h
index 4f27575ce1d6..ca9ec8540905 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -195,27 +195,23 @@ enum {
 	SOCK_WAKE_URG,
 };
 
-extern int	     sock_wake_async(struct socket *sk, int how, int band);
-extern int	     sock_register(const struct net_proto_family *fam);
-extern void	     sock_unregister(int family);
-extern int	     __sock_create(struct net *net, int family, int type, int proto,
-				 struct socket **res, int kern);
-extern int	     sock_create(int family, int type, int proto,
-				 struct socket **res);
-extern int	     sock_create_kern(int family, int type, int proto,
-				      struct socket **res);
-extern int	     sock_create_lite(int family, int type, int proto,
-				      struct socket **res); 
-extern void	     sock_release(struct socket *sock);
-extern int   	     sock_sendmsg(struct socket *sock, struct msghdr *msg,
-				  size_t len);
-extern int	     sock_recvmsg(struct socket *sock, struct msghdr *msg,
-				  size_t size, int flags);
-extern struct file  *sock_alloc_file(struct socket *sock, int flags, const char *dname);
-extern struct socket *sockfd_lookup(int fd, int *err);
-extern struct socket *sock_from_file(struct file *file, int *err);
+int sock_wake_async(struct socket *sk, int how, int band);
+int sock_register(const struct net_proto_family *fam);
+void sock_unregister(int family);
+int __sock_create(struct net *net, int family, int type, int proto,
+		  struct socket **res, int kern);
+int sock_create(int family, int type, int proto, struct socket **res);
+int sock_create_kern(int family, int type, int proto, struct socket **res);
+int sock_create_lite(int family, int type, int proto, struct socket **res);
+void sock_release(struct socket *sock);
+int sock_sendmsg(struct socket *sock, struct msghdr *msg, size_t len);
+int sock_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
+		 int flags);
+struct file *sock_alloc_file(struct socket *sock, int flags, const char *dname);
+struct socket *sockfd_lookup(int fd, int *err);
+struct socket *sock_from_file(struct file *file, int *err);
 #define		     sockfd_put(sock) fput(sock->file)
-extern int	     net_ratelimit(void);
+int net_ratelimit(void);
 
 #define net_ratelimited_function(function, ...)			\
 do {								\
@@ -243,32 +239,28 @@ do {								\
 #define net_random()		prandom_u32()
 #define net_srandom(seed)	prandom_seed((__force u32)(seed))
 
-extern int   	     kernel_sendmsg(struct socket *sock, struct msghdr *msg,
-				    struct kvec *vec, size_t num, size_t len);
-extern int   	     kernel_recvmsg(struct socket *sock, struct msghdr *msg,
-				    struct kvec *vec, size_t num,
-				    size_t len, int flags);
+int kernel_sendmsg(struct socket *sock, struct msghdr *msg, struct kvec *vec,
+		   size_t num, size_t len);
+int kernel_recvmsg(struct socket *sock, struct msghdr *msg, struct kvec *vec,
+		   size_t num, size_t len, int flags);
 
-extern int kernel_bind(struct socket *sock, struct sockaddr *addr,
-		       int addrlen);
-extern int kernel_listen(struct socket *sock, int backlog);
-extern int kernel_accept(struct socket *sock, struct socket **newsock,
-			 int flags);
-extern int kernel_connect(struct socket *sock, struct sockaddr *addr,
-			  int addrlen, int flags);
-extern int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
-			      int *addrlen);
-extern int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
-			      int *addrlen);
-extern int kernel_getsockopt(struct socket *sock, int level, int optname,
-			     char *optval, int *optlen);
-extern int kernel_setsockopt(struct socket *sock, int level, int optname,
-			     char *optval, unsigned int optlen);
-extern int kernel_sendpage(struct socket *sock, struct page *page, int offset,
-			   size_t size, int flags);
-extern int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg);
-extern int kernel_sock_shutdown(struct socket *sock,
-				enum sock_shutdown_cmd how);
+int kernel_bind(struct socket *sock, struct sockaddr *addr, int addrlen);
+int kernel_listen(struct socket *sock, int backlog);
+int kernel_accept(struct socket *sock, struct socket **newsock, int flags);
+int kernel_connect(struct socket *sock, struct sockaddr *addr, int addrlen,
+		   int flags);
+int kernel_getsockname(struct socket *sock, struct sockaddr *addr,
+		       int *addrlen);
+int kernel_getpeername(struct socket *sock, struct sockaddr *addr,
+		       int *addrlen);
+int kernel_getsockopt(struct socket *sock, int level, int optname, char *optval,
+		      int *optlen);
+int kernel_setsockopt(struct socket *sock, int level, int optname, char *optval,
+		      unsigned int optlen);
+int kernel_sendpage(struct socket *sock, struct page *page, int offset,
+		    size_t size, int flags);
+int kernel_sock_ioctl(struct socket *sock, int cmd, unsigned long arg);
+int kernel_sock_shutdown(struct socket *sock, enum sock_shutdown_cmd how);
 
 #define MODULE_ALIAS_NETPROTO(proto) \
 	MODULE_ALIAS("net-pf-" __stringify(proto))
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 2ddb48d9312c..6d56840e561e 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -585,8 +585,8 @@ static inline void skb_dst_set(struct sk_buff *skb, struct dst_entry *dst)
 	skb->_skb_refdst = (unsigned long)dst;
 }
 
-extern void __skb_dst_set_noref(struct sk_buff *skb, struct dst_entry *dst,
-				bool force);
+void __skb_dst_set_noref(struct sk_buff *skb, struct dst_entry *dst,
+			 bool force);
 
 /**
  * skb_dst_set_noref - sets skb dst, hopefully, without taking reference
@@ -634,20 +634,20 @@ static inline struct rtable *skb_rtable(const struct sk_buff *skb)
 	return (struct rtable *)skb_dst(skb);
 }
 
-extern void kfree_skb(struct sk_buff *skb);
-extern void kfree_skb_list(struct sk_buff *segs);
-extern void skb_tx_error(struct sk_buff *skb);
-extern void consume_skb(struct sk_buff *skb);
-extern void	       __kfree_skb(struct sk_buff *skb);
+void kfree_skb(struct sk_buff *skb);
+void kfree_skb_list(struct sk_buff *segs);
+void skb_tx_error(struct sk_buff *skb);
+void consume_skb(struct sk_buff *skb);
+void  __kfree_skb(struct sk_buff *skb);
 extern struct kmem_cache *skbuff_head_cache;
 
-extern void kfree_skb_partial(struct sk_buff *skb, bool head_stolen);
-extern bool skb_try_coalesce(struct sk_buff *to, struct sk_buff *from,
-			     bool *fragstolen, int *delta_truesize);
+void kfree_skb_partial(struct sk_buff *skb, bool head_stolen);
+bool skb_try_coalesce(struct sk_buff *to, struct sk_buff *from,
+		      bool *fragstolen, int *delta_truesize);
 
-extern struct sk_buff *__alloc_skb(unsigned int size,
-				   gfp_t priority, int flags, int node);
-extern struct sk_buff *build_skb(void *data, unsigned int frag_size);
+struct sk_buff *__alloc_skb(unsigned int size, gfp_t priority, int flags,
+			    int node);
+struct sk_buff *build_skb(void *data, unsigned int frag_size);
 static inline struct sk_buff *alloc_skb(unsigned int size,
 					gfp_t priority)
 {
@@ -660,41 +660,33 @@ static inline struct sk_buff *alloc_skb_fclone(unsigned int size,
 	return __alloc_skb(size, priority, SKB_ALLOC_FCLONE, NUMA_NO_NODE);
 }
 
-extern struct sk_buff *__alloc_skb_head(gfp_t priority, int node);
+struct sk_buff *__alloc_skb_head(gfp_t priority, int node);
 static inline struct sk_buff *alloc_skb_head(gfp_t priority)
 {
 	return __alloc_skb_head(priority, -1);
 }
 
-extern struct sk_buff *skb_morph(struct sk_buff *dst, struct sk_buff *src);
-extern int skb_copy_ubufs(struct sk_buff *skb, gfp_t gfp_mask);
-extern struct sk_buff *skb_clone(struct sk_buff *skb,
-				 gfp_t priority);
-extern struct sk_buff *skb_copy(const struct sk_buff *skb,
-				gfp_t priority);
-extern struct sk_buff *__pskb_copy(struct sk_buff *skb,
-				 int headroom, gfp_t gfp_mask);
-
-extern int	       pskb_expand_head(struct sk_buff *skb,
-					int nhead, int ntail,
-					gfp_t gfp_mask);
-extern struct sk_buff *skb_realloc_headroom(struct sk_buff *skb,
-					    unsigned int headroom);
-extern struct sk_buff *skb_copy_expand(const struct sk_buff *skb,
-				       int newheadroom, int newtailroom,
-				       gfp_t priority);
-extern int	       skb_to_sgvec(struct sk_buff *skb,
-				    struct scatterlist *sg, int offset,
-				    int len);
-extern int	       skb_cow_data(struct sk_buff *skb, int tailbits,
-				    struct sk_buff **trailer);
-extern int	       skb_pad(struct sk_buff *skb, int pad);
+struct sk_buff *skb_morph(struct sk_buff *dst, struct sk_buff *src);
+int skb_copy_ubufs(struct sk_buff *skb, gfp_t gfp_mask);
+struct sk_buff *skb_clone(struct sk_buff *skb, gfp_t priority);
+struct sk_buff *skb_copy(const struct sk_buff *skb, gfp_t priority);
+struct sk_buff *__pskb_copy(struct sk_buff *skb, int headroom, gfp_t gfp_mask);
+
+int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail, gfp_t gfp_mask);
+struct sk_buff *skb_realloc_headroom(struct sk_buff *skb,
+				     unsigned int headroom);
+struct sk_buff *skb_copy_expand(const struct sk_buff *skb, int newheadroom,
+				int newtailroom, gfp_t priority);
+int skb_to_sgvec(struct sk_buff *skb, struct scatterlist *sg, int offset,
+		 int len);
+int skb_cow_data(struct sk_buff *skb, int tailbits, struct sk_buff **trailer);
+int skb_pad(struct sk_buff *skb, int pad);
 #define dev_kfree_skb(a)	consume_skb(a)
 
-extern int skb_append_datato_frags(struct sock *sk, struct sk_buff *skb,
-			int getfrag(void *from, char *to, int offset,
-			int len,int odd, struct sk_buff *skb),
-			void *from, int length);
+int skb_append_datato_frags(struct sock *sk, struct sk_buff *skb,
+			    int getfrag(void *from, char *to, int offset,
+					int len, int odd, struct sk_buff *skb),
+			    void *from, int length);
 
 struct skb_seq_state {
 	__u32		lower_offset;
@@ -706,18 +698,17 @@ struct skb_seq_state {
 	__u8		*frag_data;
 };
 
-extern void	      skb_prepare_seq_read(struct sk_buff *skb,
-					   unsigned int from, unsigned int to,
-					   struct skb_seq_state *st);
-extern unsigned int   skb_seq_read(unsigned int consumed, const u8 **data,
-				   struct skb_seq_state *st);
-extern void	      skb_abort_seq_read(struct skb_seq_state *st);
+void skb_prepare_seq_read(struct sk_buff *skb, unsigned int from,
+			  unsigned int to, struct skb_seq_state *st);
+unsigned int skb_seq_read(unsigned int consumed, const u8 **data,
+			  struct skb_seq_state *st);
+void skb_abort_seq_read(struct skb_seq_state *st);
 
-extern unsigned int   skb_find_text(struct sk_buff *skb, unsigned int from,
-				    unsigned int to, struct ts_config *config,
-				    struct ts_state *state);
+unsigned int skb_find_text(struct sk_buff *skb, unsigned int from,
+			   unsigned int to, struct ts_config *config,
+			   struct ts_state *state);
 
-extern void __skb_get_rxhash(struct sk_buff *skb);
+void __skb_get_rxhash(struct sk_buff *skb);
 static inline __u32 skb_get_rxhash(struct sk_buff *skb)
 {
 	if (!skb->l4_rxhash)
@@ -1095,7 +1086,8 @@ static inline void skb_queue_head_init_class(struct sk_buff_head *list,
  *	The "__skb_xxxx()" functions are the non-atomic ones that
  *	can only be called with interrupts disabled.
  */
-extern void        skb_insert(struct sk_buff *old, struct sk_buff *newsk, struct sk_buff_head *list);
+void skb_insert(struct sk_buff *old, struct sk_buff *newsk,
+		struct sk_buff_head *list);
 static inline void __skb_insert(struct sk_buff *newsk,
 				struct sk_buff *prev, struct sk_buff *next,
 				struct sk_buff_head *list)
@@ -1201,8 +1193,8 @@ static inline void __skb_queue_after(struct sk_buff_head *list,
 	__skb_insert(newsk, prev, prev->next, list);
 }
 
-extern void skb_append(struct sk_buff *old, struct sk_buff *newsk,
-		       struct sk_buff_head *list);
+void skb_append(struct sk_buff *old, struct sk_buff *newsk,
+		struct sk_buff_head *list);
 
 static inline void __skb_queue_before(struct sk_buff_head *list,
 				      struct sk_buff *next,
@@ -1221,7 +1213,7 @@ static inline void __skb_queue_before(struct sk_buff_head *list,
  *
  *	A buffer cannot be placed on two lists at the same time.
  */
-extern void skb_queue_head(struct sk_buff_head *list, struct sk_buff *newsk);
+void skb_queue_head(struct sk_buff_head *list, struct sk_buff *newsk);
 static inline void __skb_queue_head(struct sk_buff_head *list,
 				    struct sk_buff *newsk)
 {
@@ -1238,7 +1230,7 @@ static inline void __skb_queue_head(struct sk_buff_head *list,
  *
  *	A buffer cannot be placed on two lists at the same time.
  */
-extern void skb_queue_tail(struct sk_buff_head *list, struct sk_buff *newsk);
+void skb_queue_tail(struct sk_buff_head *list, struct sk_buff *newsk);
 static inline void __skb_queue_tail(struct sk_buff_head *list,
 				   struct sk_buff *newsk)
 {
@@ -1249,7 +1241,7 @@ static inline void __skb_queue_tail(struct sk_buff_head *list,
  * remove sk_buff from list. _Must_ be called atomically, and with
  * the list known..
  */
-extern void	   skb_unlink(struct sk_buff *skb, struct sk_buff_head *list);
+void skb_unlink(struct sk_buff *skb, struct sk_buff_head *list);
 static inline void __skb_unlink(struct sk_buff *skb, struct sk_buff_head *list)
 {
 	struct sk_buff *next, *prev;
@@ -1270,7 +1262,7 @@ static inline void __skb_unlink(struct sk_buff *skb, struct sk_buff_head *list)
  *	so must be used with appropriate locks held only. The head item is
  *	returned or %NULL if the list is empty.
  */
-extern struct sk_buff *skb_dequeue(struct sk_buff_head *list);
+struct sk_buff *skb_dequeue(struct sk_buff_head *list);
 static inline struct sk_buff *__skb_dequeue(struct sk_buff_head *list)
 {
 	struct sk_buff *skb = skb_peek(list);
@@ -1287,7 +1279,7 @@ static inline struct sk_buff *__skb_dequeue(struct sk_buff_head *list)
  *	so must be used with appropriate locks held only. The tail item is
  *	returned or %NULL if the list is empty.
  */
-extern struct sk_buff *skb_dequeue_tail(struct sk_buff_head *list);
+struct sk_buff *skb_dequeue_tail(struct sk_buff_head *list);
 static inline struct sk_buff *__skb_dequeue_tail(struct sk_buff_head *list)
 {
 	struct sk_buff *skb = skb_peek_tail(list);
@@ -1373,8 +1365,8 @@ static inline void skb_fill_page_desc(struct sk_buff *skb, int i,
 	skb_shinfo(skb)->nr_frags = i + 1;
 }
 
-extern void skb_add_rx_frag(struct sk_buff *skb, int i, struct page *page,
-			    int off, int size, unsigned int truesize);
+void skb_add_rx_frag(struct sk_buff *skb, int i, struct page *page, int off,
+		     int size, unsigned int truesize);
 
 #define SKB_PAGE_ASSERT(skb) 	BUG_ON(skb_shinfo(skb)->nr_frags)
 #define SKB_FRAG_ASSERT(skb) 	BUG_ON(skb_has_frag_list(skb))
@@ -1418,7 +1410,7 @@ static inline void skb_set_tail_pointer(struct sk_buff *skb, const int offset)
 /*
  *	Add data to an sk_buff
  */
-extern unsigned char *skb_put(struct sk_buff *skb, unsigned int len);
+unsigned char *skb_put(struct sk_buff *skb, unsigned int len);
 static inline unsigned char *__skb_put(struct sk_buff *skb, unsigned int len)
 {
 	unsigned char *tmp = skb_tail_pointer(skb);
@@ -1428,7 +1420,7 @@ static inline unsigned char *__skb_put(struct sk_buff *skb, unsigned int len)
 	return tmp;
 }
 
-extern unsigned char *skb_push(struct sk_buff *skb, unsigned int len);
+unsigned char *skb_push(struct sk_buff *skb, unsigned int len);
 static inline unsigned char *__skb_push(struct sk_buff *skb, unsigned int len)
 {
 	skb->data -= len;
@@ -1436,7 +1428,7 @@ static inline unsigned char *__skb_push(struct sk_buff *skb, unsigned int len)
 	return skb->data;
 }
 
-extern unsigned char *skb_pull(struct sk_buff *skb, unsigned int len);
+unsigned char *skb_pull(struct sk_buff *skb, unsigned int len);
 static inline unsigned char *__skb_pull(struct sk_buff *skb, unsigned int len)
 {
 	skb->len -= len;
@@ -1449,7 +1441,7 @@ static inline unsigned char *skb_pull_inline(struct sk_buff *skb, unsigned int l
 	return unlikely(len > skb->len) ? NULL : __skb_pull(skb, len);
 }
 
-extern unsigned char *__pskb_pull_tail(struct sk_buff *skb, int delta);
+unsigned char *__pskb_pull_tail(struct sk_buff *skb, int delta);
 
 static inline unsigned char *__pskb_pull(struct sk_buff *skb, unsigned int len)
 {
@@ -1753,7 +1745,7 @@ static inline int pskb_network_may_pull(struct sk_buff *skb, unsigned int len)
 #define NET_SKB_PAD	max(32, L1_CACHE_BYTES)
 #endif
 
-extern int ___pskb_trim(struct sk_buff *skb, unsigned int len);
+int ___pskb_trim(struct sk_buff *skb, unsigned int len);
 
 static inline void __skb_trim(struct sk_buff *skb, unsigned int len)
 {
@@ -1765,7 +1757,7 @@ static inline void __skb_trim(struct sk_buff *skb, unsigned int len)
 	skb_set_tail_pointer(skb, len);
 }
 
-extern void skb_trim(struct sk_buff *skb, unsigned int len);
+void skb_trim(struct sk_buff *skb, unsigned int len);
 
 static inline int __pskb_trim(struct sk_buff *skb, unsigned int len)
 {
@@ -1838,7 +1830,7 @@ static inline int skb_orphan_frags(struct sk_buff *skb, gfp_t gfp_mask)
  *	the list and one reference dropped. This function does not take the
  *	list lock and the caller must hold the relevant locks to use it.
  */
-extern void skb_queue_purge(struct sk_buff_head *list);
+void skb_queue_purge(struct sk_buff_head *list);
 static inline void __skb_queue_purge(struct sk_buff_head *list)
 {
 	struct sk_buff *skb;
@@ -1850,11 +1842,10 @@ static inline void __skb_queue_purge(struct sk_buff_head *list)
 #define NETDEV_FRAG_PAGE_MAX_SIZE  (PAGE_SIZE << NETDEV_FRAG_PAGE_MAX_ORDER)
 #define NETDEV_PAGECNT_MAX_BIAS	   NETDEV_FRAG_PAGE_MAX_SIZE
 
-extern void *netdev_alloc_frag(unsigned int fragsz);
+void *netdev_alloc_frag(unsigned int fragsz);
 
-extern struct sk_buff *__netdev_alloc_skb(struct net_device *dev,
-					  unsigned int length,
-					  gfp_t gfp_mask);
+struct sk_buff *__netdev_alloc_skb(struct net_device *dev, unsigned int length,
+				   gfp_t gfp_mask);
 
 /**
  *	netdev_alloc_skb - allocate an skbuff for rx on a specific device
@@ -2342,60 +2333,42 @@ static inline void skb_frag_add_head(struct sk_buff *skb, struct sk_buff *frag)
 #define skb_walk_frags(skb, iter)	\
 	for (iter = skb_shinfo(skb)->frag_list; iter; iter = iter->next)
 
-extern struct sk_buff *__skb_recv_datagram(struct sock *sk, unsigned flags,
-					   int *peeked, int *off, int *err);
-extern struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags,
-					 int noblock, int *err);
-extern unsigned int    datagram_poll(struct file *file, struct socket *sock,
-				     struct poll_table_struct *wait);
-extern int	       skb_copy_datagram_iovec(const struct sk_buff *from,
-					       int offset, struct iovec *to,
-					       int size);
-extern int	       skb_copy_and_csum_datagram_iovec(struct sk_buff *skb,
-							int hlen,
-							struct iovec *iov);
-extern int	       skb_copy_datagram_from_iovec(struct sk_buff *skb,
-						    int offset,
-						    const struct iovec *from,
-						    int from_offset,
-						    int len);
-extern int	       zerocopy_sg_from_iovec(struct sk_buff *skb,
-					      const struct iovec *frm,
-					      int offset,
-					      size_t count);
-extern int	       skb_copy_datagram_const_iovec(const struct sk_buff *from,
-						     int offset,
-						     const struct iovec *to,
-						     int to_offset,
-						     int size);
-extern void	       skb_free_datagram(struct sock *sk, struct sk_buff *skb);
-extern void	       skb_free_datagram_locked(struct sock *sk,
-						struct sk_buff *skb);
-extern int	       skb_kill_datagram(struct sock *sk, struct sk_buff *skb,
-					 unsigned int flags);
-extern __wsum	       skb_checksum(const struct sk_buff *skb, int offset,
-				    int len, __wsum csum);
-extern int	       skb_copy_bits(const struct sk_buff *skb, int offset,
-				     void *to, int len);
-extern int	       skb_store_bits(struct sk_buff *skb, int offset,
-				      const void *from, int len);
-extern __wsum	       skb_copy_and_csum_bits(const struct sk_buff *skb,
-					      int offset, u8 *to, int len,
-					      __wsum csum);
-extern int             skb_splice_bits(struct sk_buff *skb,
-						unsigned int offset,
-						struct pipe_inode_info *pipe,
-						unsigned int len,
-						unsigned int flags);
-extern void	       skb_copy_and_csum_dev(const struct sk_buff *skb, u8 *to);
-extern void	       skb_split(struct sk_buff *skb,
-				 struct sk_buff *skb1, const u32 len);
-extern int	       skb_shift(struct sk_buff *tgt, struct sk_buff *skb,
-				 int shiftlen);
-extern void	       skb_scrub_packet(struct sk_buff *skb, bool xnet);
-
-extern struct sk_buff *skb_segment(struct sk_buff *skb,
-				   netdev_features_t features);
+struct sk_buff *__skb_recv_datagram(struct sock *sk, unsigned flags,
+				    int *peeked, int *off, int *err);
+struct sk_buff *skb_recv_datagram(struct sock *sk, unsigned flags, int noblock,
+				  int *err);
+unsigned int datagram_poll(struct file *file, struct socket *sock,
+			   struct poll_table_struct *wait);
+int skb_copy_datagram_iovec(const struct sk_buff *from, int offset,
+			    struct iovec *to, int size);
+int skb_copy_and_csum_datagram_iovec(struct sk_buff *skb, int hlen,
+				     struct iovec *iov);
+int skb_copy_datagram_from_iovec(struct sk_buff *skb, int offset,
+				 const struct iovec *from, int from_offset,
+				 int len);
+int zerocopy_sg_from_iovec(struct sk_buff *skb, const struct iovec *frm,
+			   int offset, size_t count);
+int skb_copy_datagram_const_iovec(const struct sk_buff *from, int offset,
+				  const struct iovec *to, int to_offset,
+				  int size);
+void skb_free_datagram(struct sock *sk, struct sk_buff *skb);
+void skb_free_datagram_locked(struct sock *sk, struct sk_buff *skb);
+int skb_kill_datagram(struct sock *sk, struct sk_buff *skb, unsigned int flags);
+__wsum skb_checksum(const struct sk_buff *skb, int offset, int len,
+		    __wsum csum);
+int skb_copy_bits(const struct sk_buff *skb, int offset, void *to, int len);
+int skb_store_bits(struct sk_buff *skb, int offset, const void *from, int len);
+__wsum skb_copy_and_csum_bits(const struct sk_buff *skb, int offset, u8 *to,
+			      int len, __wsum csum);
+int skb_splice_bits(struct sk_buff *skb, unsigned int offset,
+		    struct pipe_inode_info *pipe, unsigned int len,
+		    unsigned int flags);
+void skb_copy_and_csum_dev(const struct sk_buff *skb, u8 *to);
+void skb_split(struct sk_buff *skb, struct sk_buff *skb1, const u32 len);
+int skb_shift(struct sk_buff *tgt, struct sk_buff *skb, int shiftlen);
+void skb_scrub_packet(struct sk_buff *skb, bool xnet);
+
+struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features);
 
 static inline void *skb_header_pointer(const struct sk_buff *skb, int offset,
 				       int len, void *buffer)
@@ -2440,7 +2413,7 @@ static inline void skb_copy_to_linear_data_offset(struct sk_buff *skb,
 	memcpy(skb->data + offset, from, len);
 }
 
-extern void skb_init(void);
+void skb_init(void);
 
 static inline ktime_t skb_get_ktime(const struct sk_buff *skb)
 {
@@ -2483,12 +2456,12 @@ static inline ktime_t net_invalid_timestamp(void)
 	return ktime_set(0, 0);
 }
 
-extern void skb_timestamping_init(void);
+void skb_timestamping_init(void);
 
 #ifdef CONFIG_NETWORK_PHY_TIMESTAMPING
 
-extern void skb_clone_tx_timestamp(struct sk_buff *skb);
-extern bool skb_defer_rx_timestamp(struct sk_buff *skb);
+void skb_clone_tx_timestamp(struct sk_buff *skb);
+bool skb_defer_rx_timestamp(struct sk_buff *skb);
 
 #else /* CONFIG_NETWORK_PHY_TIMESTAMPING */
 
@@ -2529,8 +2502,8 @@ void skb_complete_tx_timestamp(struct sk_buff *skb,
  * generates a software time stamp (otherwise), then queues the clone
  * to the error queue of the socket.  Errors are silently ignored.
  */
-extern void skb_tstamp_tx(struct sk_buff *orig_skb,
-			struct skb_shared_hwtstamps *hwtstamps);
+void skb_tstamp_tx(struct sk_buff *orig_skb,
+		   struct skb_shared_hwtstamps *hwtstamps);
 
 static inline void sw_tx_timestamp(struct sk_buff *skb)
 {
@@ -2562,8 +2535,8 @@ static inline void skb_tx_timestamp(struct sk_buff *skb)
  */
 void skb_complete_wifi_ack(struct sk_buff *skb, bool acked);
 
-extern __sum16 __skb_checksum_complete_head(struct sk_buff *skb, int len);
-extern __sum16 __skb_checksum_complete(struct sk_buff *skb);
+__sum16 __skb_checksum_complete_head(struct sk_buff *skb, int len);
+__sum16 __skb_checksum_complete(struct sk_buff *skb);
 
 static inline int skb_csum_unnecessary(const struct sk_buff *skb)
 {
@@ -2593,7 +2566,7 @@ static inline __sum16 skb_checksum_complete(struct sk_buff *skb)
 }
 
 #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
-extern void nf_conntrack_destroy(struct nf_conntrack *nfct);
+void nf_conntrack_destroy(struct nf_conntrack *nfct);
 static inline void nf_conntrack_put(struct nf_conntrack *nfct)
 {
 	if (nfct && atomic_dec_and_test(&nfct->use))
@@ -2732,9 +2705,8 @@ static inline bool skb_rx_queue_recorded(const struct sk_buff *skb)
 	return skb->queue_mapping != 0;
 }
 
-extern u16 __skb_tx_hash(const struct net_device *dev,
-			 const struct sk_buff *skb,
-			 unsigned int num_tx_queues);
+u16 __skb_tx_hash(const struct net_device *dev, const struct sk_buff *skb,
+		  unsigned int num_tx_queues);
 
 #ifdef CONFIG_XFRM
 static inline struct sec_path *skb_sec_path(struct sk_buff *skb)
@@ -2788,7 +2760,7 @@ static inline bool skb_is_gso_v6(const struct sk_buff *skb)
 	return skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6;
 }
 
-extern void __skb_warn_lro_forwarding(const struct sk_buff *skb);
+void __skb_warn_lro_forwarding(const struct sk_buff *skb);
 
 static inline bool skb_warn_if_lro(const struct sk_buff *skb)
 {
-- 
cgit 


From f629d208d27a22f495b7734eede585b5d207e912 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 26 Sep 2013 14:48:15 -0700
Subject: [networking]device.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
---
 include/linux/etherdevice.h |  35 ++--
 include/linux/fcdevice.h    |   2 +-
 include/linux/fddidevice.h  |   7 +-
 include/linux/hippidevice.h |  10 +-
 include/linux/inetdevice.h  |  28 +--
 include/linux/netdevice.h   | 432 +++++++++++++++++++++-----------------------
 6 files changed, 248 insertions(+), 266 deletions(-)

diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h
index d8b512496e50..fc4a9aa7dd82 100644
--- a/include/linux/etherdevice.h
+++ b/include/linux/etherdevice.h
@@ -28,27 +28,24 @@
 #include <asm/unaligned.h>
 
 #ifdef __KERNEL__
-extern __be16		eth_type_trans(struct sk_buff *skb, struct net_device *dev);
+__be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev);
 extern const struct header_ops eth_header_ops;
 
-extern int eth_header(struct sk_buff *skb, struct net_device *dev,
-		      unsigned short type,
-		      const void *daddr, const void *saddr, unsigned len);
-extern int eth_rebuild_header(struct sk_buff *skb);
-extern int eth_header_parse(const struct sk_buff *skb, unsigned char *haddr);
-extern int eth_header_cache(const struct neighbour *neigh, struct hh_cache *hh, __be16 type);
-extern void eth_header_cache_update(struct hh_cache *hh,
-				    const struct net_device *dev,
-				    const unsigned char *haddr);
-extern int eth_prepare_mac_addr_change(struct net_device *dev, void *p);
-extern void eth_commit_mac_addr_change(struct net_device *dev, void *p);
-extern int eth_mac_addr(struct net_device *dev, void *p);
-extern int eth_change_mtu(struct net_device *dev, int new_mtu);
-extern int eth_validate_addr(struct net_device *dev);
-
-
-
-extern struct net_device *alloc_etherdev_mqs(int sizeof_priv, unsigned int txqs,
+int eth_header(struct sk_buff *skb, struct net_device *dev, unsigned short type,
+	       const void *daddr, const void *saddr, unsigned len);
+int eth_rebuild_header(struct sk_buff *skb);
+int eth_header_parse(const struct sk_buff *skb, unsigned char *haddr);
+int eth_header_cache(const struct neighbour *neigh, struct hh_cache *hh,
+		     __be16 type);
+void eth_header_cache_update(struct hh_cache *hh, const struct net_device *dev,
+			     const unsigned char *haddr);
+int eth_prepare_mac_addr_change(struct net_device *dev, void *p);
+void eth_commit_mac_addr_change(struct net_device *dev, void *p);
+int eth_mac_addr(struct net_device *dev, void *p);
+int eth_change_mtu(struct net_device *dev, int new_mtu);
+int eth_validate_addr(struct net_device *dev);
+
+struct net_device *alloc_etherdev_mqs(int sizeof_priv, unsigned int txqs,
 					    unsigned int rxqs);
 #define alloc_etherdev(sizeof_priv) alloc_etherdev_mq(sizeof_priv, 1)
 #define alloc_etherdev_mq(sizeof_priv, count) alloc_etherdev_mqs(sizeof_priv, count, count)
diff --git a/include/linux/fcdevice.h b/include/linux/fcdevice.h
index e460ef831984..5009fa16b5d8 100644
--- a/include/linux/fcdevice.h
+++ b/include/linux/fcdevice.h
@@ -27,7 +27,7 @@
 #include <linux/if_fc.h>
 
 #ifdef __KERNEL__
-extern struct net_device *alloc_fcdev(int sizeof_priv);
+struct net_device *alloc_fcdev(int sizeof_priv);
 #endif
 
 #endif	/* _LINUX_FCDEVICE_H */
diff --git a/include/linux/fddidevice.h b/include/linux/fddidevice.h
index 155bafd9e886..9a79f0106da1 100644
--- a/include/linux/fddidevice.h
+++ b/include/linux/fddidevice.h
@@ -25,10 +25,9 @@
 #include <linux/if_fddi.h>
 
 #ifdef __KERNEL__
-extern __be16	fddi_type_trans(struct sk_buff *skb,
-				struct net_device *dev);
-extern int fddi_change_mtu(struct net_device *dev, int new_mtu);
-extern struct net_device *alloc_fddidev(int sizeof_priv);
+__be16 fddi_type_trans(struct sk_buff *skb, struct net_device *dev);
+int fddi_change_mtu(struct net_device *dev, int new_mtu);
+struct net_device *alloc_fddidev(int sizeof_priv);
 #endif
 
 #endif	/* _LINUX_FDDIDEVICE_H */
diff --git a/include/linux/hippidevice.h b/include/linux/hippidevice.h
index f148e4908410..8ec23fb0b412 100644
--- a/include/linux/hippidevice.h
+++ b/include/linux/hippidevice.h
@@ -31,11 +31,11 @@ struct hippi_cb {
 	__u32	ifield;
 };
 
-extern __be16 hippi_type_trans(struct sk_buff *skb, struct net_device *dev);
-extern int hippi_change_mtu(struct net_device *dev, int new_mtu);
-extern int hippi_mac_addr(struct net_device *dev, void *p);
-extern int hippi_neigh_setup_dev(struct net_device *dev, struct neigh_parms *p);
-extern struct net_device *alloc_hippi_dev(int sizeof_priv);
+__be16 hippi_type_trans(struct sk_buff *skb, struct net_device *dev);
+int hippi_change_mtu(struct net_device *dev, int new_mtu);
+int hippi_mac_addr(struct net_device *dev, void *p);
+int hippi_neigh_setup_dev(struct net_device *dev, struct neigh_parms *p);
+struct net_device *alloc_hippi_dev(int sizeof_priv);
 #endif
 
 #endif	/* _LINUX_HIPPIDEVICE_H */
diff --git a/include/linux/inetdevice.h b/include/linux/inetdevice.h
index 79640e015a86..0d678aefe69d 100644
--- a/include/linux/inetdevice.h
+++ b/include/linux/inetdevice.h
@@ -147,25 +147,27 @@ struct in_ifaddr {
 	unsigned long		ifa_tstamp; /* updated timestamp */
 };
 
-extern int register_inetaddr_notifier(struct notifier_block *nb);
-extern int unregister_inetaddr_notifier(struct notifier_block *nb);
+int register_inetaddr_notifier(struct notifier_block *nb);
+int unregister_inetaddr_notifier(struct notifier_block *nb);
 
-extern void inet_netconf_notify_devconf(struct net *net, int type, int ifindex,
-					struct ipv4_devconf *devconf);
+void inet_netconf_notify_devconf(struct net *net, int type, int ifindex,
+				 struct ipv4_devconf *devconf);
 
-extern struct net_device *__ip_dev_find(struct net *net, __be32 addr, bool devref);
+struct net_device *__ip_dev_find(struct net *net, __be32 addr, bool devref);
 static inline struct net_device *ip_dev_find(struct net *net, __be32 addr)
 {
 	return __ip_dev_find(net, addr, true);
 }
 
-extern int		inet_addr_onlink(struct in_device *in_dev, __be32 a, __be32 b);
-extern int		devinet_ioctl(struct net *net, unsigned int cmd, void __user *);
-extern void		devinet_init(void);
-extern struct in_device	*inetdev_by_index(struct net *, int);
-extern __be32		inet_select_addr(const struct net_device *dev, __be32 dst, int scope);
-extern __be32		inet_confirm_addr(struct in_device *in_dev, __be32 dst, __be32 local, int scope);
-extern struct in_ifaddr *inet_ifa_byprefix(struct in_device *in_dev, __be32 prefix, __be32 mask);
+int inet_addr_onlink(struct in_device *in_dev, __be32 a, __be32 b);
+int devinet_ioctl(struct net *net, unsigned int cmd, void __user *);
+void devinet_init(void);
+struct in_device *inetdev_by_index(struct net *, int);
+__be32 inet_select_addr(const struct net_device *dev, __be32 dst, int scope);
+__be32 inet_confirm_addr(struct in_device *in_dev, __be32 dst, __be32 local,
+			 int scope);
+struct in_ifaddr *inet_ifa_byprefix(struct in_device *in_dev, __be32 prefix,
+				    __be32 mask);
 
 static __inline__ int inet_ifa_match(__be32 addr, struct in_ifaddr *ifa)
 {
@@ -218,7 +220,7 @@ static inline struct in_device *__in_dev_get_rtnl(const struct net_device *dev)
 	return rtnl_dereference(dev->ip_ptr);
 }
 
-extern void in_dev_finish_destroy(struct in_device *idev);
+void in_dev_finish_destroy(struct in_device *idev);
 
 static inline void in_dev_put(struct in_device *idev)
 {
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index b4cfb63f264e..5f01af3927ca 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -60,8 +60,8 @@ struct wireless_dev;
 #define SET_ETHTOOL_OPS(netdev,ops) \
 	( (netdev)->ethtool_ops = (ops) )
 
-extern void netdev_set_default_ethtool_ops(struct net_device *dev,
-					   const struct ethtool_ops *ops);
+void netdev_set_default_ethtool_ops(struct net_device *dev,
+				    const struct ethtool_ops *ops);
 
 /* hardware address assignment types */
 #define NET_ADDR_PERM		0	/* address is permanent (default) */
@@ -298,7 +298,7 @@ struct netdev_boot_setup {
 };
 #define NETDEV_BOOT_SETUP_MAX 8
 
-extern int __init netdev_boot_setup(char *str);
+int __init netdev_boot_setup(char *str);
 
 /*
  * Structure for NAPI scheduling similar to tasklet but with weighting
@@ -394,7 +394,7 @@ enum rx_handler_result {
 typedef enum rx_handler_result rx_handler_result_t;
 typedef rx_handler_result_t rx_handler_func_t(struct sk_buff **pskb);
 
-extern void __napi_schedule(struct napi_struct *n);
+void __napi_schedule(struct napi_struct *n);
 
 static inline bool napi_disable_pending(struct napi_struct *n)
 {
@@ -445,8 +445,8 @@ static inline bool napi_reschedule(struct napi_struct *napi)
  *
  * Mark NAPI processing as complete.
  */
-extern void __napi_complete(struct napi_struct *n);
-extern void napi_complete(struct napi_struct *n);
+void __napi_complete(struct napi_struct *n);
+void napi_complete(struct napi_struct *n);
 
 /**
  *	napi_by_id - lookup a NAPI by napi_id
@@ -455,7 +455,7 @@ extern void napi_complete(struct napi_struct *n);
  * lookup @napi_id in napi_hash table
  * must be called under rcu_read_lock()
  */
-extern struct napi_struct *napi_by_id(unsigned int napi_id);
+struct napi_struct *napi_by_id(unsigned int napi_id);
 
 /**
  *	napi_hash_add - add a NAPI to global hashtable
@@ -463,7 +463,7 @@ extern struct napi_struct *napi_by_id(unsigned int napi_id);
  *
  * generate a new napi_id and store a @napi under it in napi_hash
  */
-extern void napi_hash_add(struct napi_struct *napi);
+void napi_hash_add(struct napi_struct *napi);
 
 /**
  *	napi_hash_del - remove a NAPI from global table
@@ -472,7 +472,7 @@ extern void napi_hash_add(struct napi_struct *napi);
  * Warning: caller must observe rcu grace period
  * before freeing memory containing @napi
  */
-extern void napi_hash_del(struct napi_struct *napi);
+void napi_hash_del(struct napi_struct *napi);
 
 /**
  *	napi_disable - prevent NAPI from scheduling
@@ -664,8 +664,8 @@ static inline void rps_reset_sock_flow(struct rps_sock_flow_table *table,
 extern struct rps_sock_flow_table __rcu *rps_sock_flow_table;
 
 #ifdef CONFIG_RFS_ACCEL
-extern bool rps_may_expire_flow(struct net_device *dev, u16 rxq_index,
-				u32 flow_id, u16 filter_id);
+bool rps_may_expire_flow(struct net_device *dev, u16 rxq_index, u32 flow_id,
+			 u16 filter_id);
 #endif
 
 /* This structure contains an instance of an RX queue. */
@@ -1497,9 +1497,9 @@ static inline void netdev_for_each_tx_queue(struct net_device *dev,
 		f(dev, &dev->_tx[i], arg);
 }
 
-extern struct netdev_queue *netdev_pick_tx(struct net_device *dev,
-					   struct sk_buff *skb);
-extern u16 __netdev_pick_tx(struct net_device *dev, struct sk_buff *skb);
+struct netdev_queue *netdev_pick_tx(struct net_device *dev,
+				    struct sk_buff *skb);
+u16 __netdev_pick_tx(struct net_device *dev, struct sk_buff *skb);
 
 /*
  * Net namespace inlines
@@ -1683,8 +1683,8 @@ struct packet_offload {
 #define NETDEV_CHANGEUPPER	0x0015
 #define NETDEV_RESEND_IGMP	0x0016
 
-extern int register_netdevice_notifier(struct notifier_block *nb);
-extern int unregister_netdevice_notifier(struct notifier_block *nb);
+int register_netdevice_notifier(struct notifier_block *nb);
+int unregister_netdevice_notifier(struct notifier_block *nb);
 
 struct netdev_notifier_info {
 	struct net_device *dev;
@@ -1707,9 +1707,9 @@ netdev_notifier_info_to_dev(const struct netdev_notifier_info *info)
 	return info->dev;
 }
 
-extern int call_netdevice_notifiers_info(unsigned long val, struct net_device *dev,
-					 struct netdev_notifier_info *info);
-extern int call_netdevice_notifiers(unsigned long val, struct net_device *dev);
+int call_netdevice_notifiers_info(unsigned long val, struct net_device *dev,
+				  struct netdev_notifier_info *info);
+int call_netdevice_notifiers(unsigned long val, struct net_device *dev);
 
 
 extern rwlock_t				dev_base_lock;		/* Device list lock */
@@ -1764,54 +1764,52 @@ static inline struct net_device *first_net_device_rcu(struct net *net)
 	return lh == &net->dev_base_head ? NULL : net_device_entry(lh);
 }
 
-extern int 			netdev_boot_setup_check(struct net_device *dev);
-extern unsigned long		netdev_boot_base(const char *prefix, int unit);
-extern struct net_device *dev_getbyhwaddr_rcu(struct net *net, unsigned short type,
-					      const char *hwaddr);
-extern struct net_device *dev_getfirstbyhwtype(struct net *net, unsigned short type);
-extern struct net_device *__dev_getfirstbyhwtype(struct net *net, unsigned short type);
-extern void		dev_add_pack(struct packet_type *pt);
-extern void		dev_remove_pack(struct packet_type *pt);
-extern void		__dev_remove_pack(struct packet_type *pt);
-extern void		dev_add_offload(struct packet_offload *po);
-extern void		dev_remove_offload(struct packet_offload *po);
-extern void		__dev_remove_offload(struct packet_offload *po);
-
-extern struct net_device	*dev_get_by_flags_rcu(struct net *net, unsigned short flags,
-						      unsigned short mask);
-extern struct net_device	*dev_get_by_name(struct net *net, const char *name);
-extern struct net_device	*dev_get_by_name_rcu(struct net *net, const char *name);
-extern struct net_device	*__dev_get_by_name(struct net *net, const char *name);
-extern int		dev_alloc_name(struct net_device *dev, const char *name);
-extern int		dev_open(struct net_device *dev);
-extern int		dev_close(struct net_device *dev);
-extern void		dev_disable_lro(struct net_device *dev);
-extern int		dev_loopback_xmit(struct sk_buff *newskb);
-extern int		dev_queue_xmit(struct sk_buff *skb);
-extern int		register_netdevice(struct net_device *dev);
-extern void		unregister_netdevice_queue(struct net_device *dev,
-						   struct list_head *head);
-extern void		unregister_netdevice_many(struct list_head *head);
+int netdev_boot_setup_check(struct net_device *dev);
+unsigned long netdev_boot_base(const char *prefix, int unit);
+struct net_device *dev_getbyhwaddr_rcu(struct net *net, unsigned short type,
+				       const char *hwaddr);
+struct net_device *dev_getfirstbyhwtype(struct net *net, unsigned short type);
+struct net_device *__dev_getfirstbyhwtype(struct net *net, unsigned short type);
+void dev_add_pack(struct packet_type *pt);
+void dev_remove_pack(struct packet_type *pt);
+void __dev_remove_pack(struct packet_type *pt);
+void dev_add_offload(struct packet_offload *po);
+void dev_remove_offload(struct packet_offload *po);
+void __dev_remove_offload(struct packet_offload *po);
+
+struct net_device *dev_get_by_flags_rcu(struct net *net, unsigned short flags,
+					unsigned short mask);
+struct net_device *dev_get_by_name(struct net *net, const char *name);
+struct net_device *dev_get_by_name_rcu(struct net *net, const char *name);
+struct net_device *__dev_get_by_name(struct net *net, const char *name);
+int dev_alloc_name(struct net_device *dev, const char *name);
+int dev_open(struct net_device *dev);
+int dev_close(struct net_device *dev);
+void dev_disable_lro(struct net_device *dev);
+int dev_loopback_xmit(struct sk_buff *newskb);
+int dev_queue_xmit(struct sk_buff *skb);
+int register_netdevice(struct net_device *dev);
+void unregister_netdevice_queue(struct net_device *dev, struct list_head *head);
+void unregister_netdevice_many(struct list_head *head);
 static inline void unregister_netdevice(struct net_device *dev)
 {
 	unregister_netdevice_queue(dev, NULL);
 }
 
-extern int 		netdev_refcnt_read(const struct net_device *dev);
-extern void		free_netdev(struct net_device *dev);
-extern void		synchronize_net(void);
-extern int		init_dummy_netdev(struct net_device *dev);
+int netdev_refcnt_read(const struct net_device *dev);
+void free_netdev(struct net_device *dev);
+void synchronize_net(void);
+int init_dummy_netdev(struct net_device *dev);
 
-extern struct net_device	*dev_get_by_index(struct net *net, int ifindex);
-extern struct net_device	*__dev_get_by_index(struct net *net, int ifindex);
-extern struct net_device	*dev_get_by_index_rcu(struct net *net, int ifindex);
-extern int		netdev_get_name(struct net *net, char *name, int ifindex);
-extern int		dev_restart(struct net_device *dev);
+struct net_device *dev_get_by_index(struct net *net, int ifindex);
+struct net_device *__dev_get_by_index(struct net *net, int ifindex);
+struct net_device *dev_get_by_index_rcu(struct net *net, int ifindex);
+int netdev_get_name(struct net *net, char *name, int ifindex);
+int dev_restart(struct net_device *dev);
 #ifdef CONFIG_NETPOLL_TRAP
-extern int		netpoll_trap(void);
+int netpoll_trap(void);
 #endif
-extern int	       skb_gro_receive(struct sk_buff **head,
-				       struct sk_buff *skb);
+int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb);
 
 static inline unsigned int skb_gro_offset(const struct sk_buff *skb)
 {
@@ -1883,7 +1881,7 @@ static inline int dev_parse_header(const struct sk_buff *skb,
 }
 
 typedef int gifconf_func_t(struct net_device * dev, char __user * bufptr, int len);
-extern int		register_gifconf(unsigned int family, gifconf_func_t * gifconf);
+int register_gifconf(unsigned int family, gifconf_func_t *gifconf);
 static inline int unregister_gifconf(unsigned int family)
 {
 	return register_gifconf(family, NULL);
@@ -1954,7 +1952,7 @@ static inline void input_queue_tail_incr_save(struct softnet_data *sd,
 
 DECLARE_PER_CPU_ALIGNED(struct softnet_data, softnet_data);
 
-extern void __netif_schedule(struct Qdisc *q);
+void __netif_schedule(struct Qdisc *q);
 
 static inline void netif_schedule_queue(struct netdev_queue *txq)
 {
@@ -2274,8 +2272,8 @@ static inline void netif_wake_subqueue(struct net_device *dev, u16 queue_index)
 }
 
 #ifdef CONFIG_XPS
-extern int netif_set_xps_queue(struct net_device *dev, struct cpumask *mask,
-			       u16 index);
+int netif_set_xps_queue(struct net_device *dev, struct cpumask *mask,
+			u16 index);
 #else
 static inline int netif_set_xps_queue(struct net_device *dev,
 				      struct cpumask *mask,
@@ -2306,12 +2304,10 @@ static inline bool netif_is_multiqueue(const struct net_device *dev)
 	return dev->num_tx_queues > 1;
 }
 
-extern int netif_set_real_num_tx_queues(struct net_device *dev,
-					unsigned int txq);
+int netif_set_real_num_tx_queues(struct net_device *dev, unsigned int txq);
 
 #ifdef CONFIG_RPS
-extern int netif_set_real_num_rx_queues(struct net_device *dev,
-					unsigned int rxq);
+int netif_set_real_num_rx_queues(struct net_device *dev, unsigned int rxq);
 #else
 static inline int netif_set_real_num_rx_queues(struct net_device *dev,
 						unsigned int rxq)
@@ -2338,28 +2334,27 @@ static inline int netif_copy_real_num_queues(struct net_device *to_dev,
 }
 
 #define DEFAULT_MAX_NUM_RSS_QUEUES	(8)
-extern int netif_get_num_default_rss_queues(void);
+int netif_get_num_default_rss_queues(void);
 
 /* Use this variant when it is known for sure that it
  * is executing from hardware interrupt context or with hardware interrupts
  * disabled.
  */
-extern void dev_kfree_skb_irq(struct sk_buff *skb);
+void dev_kfree_skb_irq(struct sk_buff *skb);
 
 /* Use this variant in places where it could be invoked
  * from either hardware interrupt or other context, with hardware interrupts
  * either disabled or enabled.
  */
-extern void dev_kfree_skb_any(struct sk_buff *skb);
+void dev_kfree_skb_any(struct sk_buff *skb);
 
-extern int		netif_rx(struct sk_buff *skb);
-extern int		netif_rx_ni(struct sk_buff *skb);
-extern int		netif_receive_skb(struct sk_buff *skb);
-extern gro_result_t	napi_gro_receive(struct napi_struct *napi,
-					 struct sk_buff *skb);
-extern void		napi_gro_flush(struct napi_struct *napi, bool flush_old);
-extern struct sk_buff *	napi_get_frags(struct napi_struct *napi);
-extern gro_result_t	napi_gro_frags(struct napi_struct *napi);
+int netif_rx(struct sk_buff *skb);
+int netif_rx_ni(struct sk_buff *skb);
+int netif_receive_skb(struct sk_buff *skb);
+gro_result_t napi_gro_receive(struct napi_struct *napi, struct sk_buff *skb);
+void napi_gro_flush(struct napi_struct *napi, bool flush_old);
+struct sk_buff *napi_get_frags(struct napi_struct *napi);
+gro_result_t napi_gro_frags(struct napi_struct *napi);
 
 static inline void napi_free_frags(struct napi_struct *napi)
 {
@@ -2367,40 +2362,35 @@ static inline void napi_free_frags(struct napi_struct *napi)
 	napi->skb = NULL;
 }
 
-extern int netdev_rx_handler_register(struct net_device *dev,
-				      rx_handler_func_t *rx_handler,
-				      void *rx_handler_data);
-extern void netdev_rx_handler_unregister(struct net_device *dev);
-
-extern bool		dev_valid_name(const char *name);
-extern int		dev_ioctl(struct net *net, unsigned int cmd, void __user *);
-extern int		dev_ethtool(struct net *net, struct ifreq *);
-extern unsigned int	dev_get_flags(const struct net_device *);
-extern int		__dev_change_flags(struct net_device *, unsigned int flags);
-extern int		dev_change_flags(struct net_device *, unsigned int);
-extern void		__dev_notify_flags(struct net_device *, unsigned int old_flags);
-extern int		dev_change_name(struct net_device *, const char *);
-extern int		dev_set_alias(struct net_device *, const char *, size_t);
-extern int		dev_change_net_namespace(struct net_device *,
-						 struct net *, const char *);
-extern int		dev_set_mtu(struct net_device *, int);
-extern void		dev_set_group(struct net_device *, int);
-extern int		dev_set_mac_address(struct net_device *,
-					    struct sockaddr *);
-extern int		dev_change_carrier(struct net_device *,
-					   bool new_carrier);
-extern int		dev_get_phys_port_id(struct net_device *dev,
-					     struct netdev_phys_port_id *ppid);
-extern int		dev_hard_start_xmit(struct sk_buff *skb,
-					    struct net_device *dev,
-					    struct netdev_queue *txq);
-extern int		dev_forward_skb(struct net_device *dev,
-					struct sk_buff *skb);
+int netdev_rx_handler_register(struct net_device *dev,
+			       rx_handler_func_t *rx_handler,
+			       void *rx_handler_data);
+void netdev_rx_handler_unregister(struct net_device *dev);
+
+bool dev_valid_name(const char *name);
+int dev_ioctl(struct net *net, unsigned int cmd, void __user *);
+int dev_ethtool(struct net *net, struct ifreq *);
+unsigned int dev_get_flags(const struct net_device *);
+int __dev_change_flags(struct net_device *, unsigned int flags);
+int dev_change_flags(struct net_device *, unsigned int);
+void __dev_notify_flags(struct net_device *, unsigned int old_flags);
+int dev_change_name(struct net_device *, const char *);
+int dev_set_alias(struct net_device *, const char *, size_t);
+int dev_change_net_namespace(struct net_device *, struct net *, const char *);
+int dev_set_mtu(struct net_device *, int);
+void dev_set_group(struct net_device *, int);
+int dev_set_mac_address(struct net_device *, struct sockaddr *);
+int dev_change_carrier(struct net_device *, bool new_carrier);
+int dev_get_phys_port_id(struct net_device *dev,
+			 struct netdev_phys_port_id *ppid);
+int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
+			struct netdev_queue *txq);
+int dev_forward_skb(struct net_device *dev, struct sk_buff *skb);
 
 extern int		netdev_budget;
 
 /* Called by rtnetlink.c:rtnl_unlock() */
-extern void netdev_run_todo(void);
+void netdev_run_todo(void);
 
 /**
  *	dev_put - release reference to device
@@ -2433,9 +2423,9 @@ static inline void dev_hold(struct net_device *dev)
  * kind of lower layer not just hardware media.
  */
 
-extern void linkwatch_init_dev(struct net_device *dev);
-extern void linkwatch_fire_event(struct net_device *dev);
-extern void linkwatch_forget_dev(struct net_device *dev);
+void linkwatch_init_dev(struct net_device *dev);
+void linkwatch_fire_event(struct net_device *dev);
+void linkwatch_forget_dev(struct net_device *dev);
 
 /**
  *	netif_carrier_ok - test if carrier present
@@ -2448,13 +2438,13 @@ static inline bool netif_carrier_ok(const struct net_device *dev)
 	return !test_bit(__LINK_STATE_NOCARRIER, &dev->state);
 }
 
-extern unsigned long dev_trans_start(struct net_device *dev);
+unsigned long dev_trans_start(struct net_device *dev);
 
-extern void __netdev_watchdog_up(struct net_device *dev);
+void __netdev_watchdog_up(struct net_device *dev);
 
-extern void netif_carrier_on(struct net_device *dev);
+void netif_carrier_on(struct net_device *dev);
 
-extern void netif_carrier_off(struct net_device *dev);
+void netif_carrier_off(struct net_device *dev);
 
 /**
  *	netif_dormant_on - mark device as dormant.
@@ -2522,9 +2512,9 @@ static inline bool netif_device_present(struct net_device *dev)
 	return test_bit(__LINK_STATE_PRESENT, &dev->state);
 }
 
-extern void netif_device_detach(struct net_device *dev);
+void netif_device_detach(struct net_device *dev);
 
-extern void netif_device_attach(struct net_device *dev);
+void netif_device_attach(struct net_device *dev);
 
 /*
  * Network interface message level settings
@@ -2733,98 +2723,93 @@ static inline void netif_addr_unlock_bh(struct net_device *dev)
 
 /* These functions live elsewhere (drivers/net/net_init.c, but related) */
 
-extern void		ether_setup(struct net_device *dev);
+void ether_setup(struct net_device *dev);
 
 /* Support for loadable net-drivers */
-extern struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
-				       void (*setup)(struct net_device *),
-				       unsigned int txqs, unsigned int rxqs);
+struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
+				    void (*setup)(struct net_device *),
+				    unsigned int txqs, unsigned int rxqs);
 #define alloc_netdev(sizeof_priv, name, setup) \
 	alloc_netdev_mqs(sizeof_priv, name, setup, 1, 1)
 
 #define alloc_netdev_mq(sizeof_priv, name, setup, count) \
 	alloc_netdev_mqs(sizeof_priv, name, setup, count, count)
 
-extern int		register_netdev(struct net_device *dev);
-extern void		unregister_netdev(struct net_device *dev);
+int register_netdev(struct net_device *dev);
+void unregister_netdev(struct net_device *dev);
 
 /* General hardware address lists handling functions */
-extern int __hw_addr_add_multiple(struct netdev_hw_addr_list *to_list,
-				  struct netdev_hw_addr_list *from_list,
-				  int addr_len, unsigned char addr_type);
-extern void __hw_addr_del_multiple(struct netdev_hw_addr_list *to_list,
-				   struct netdev_hw_addr_list *from_list,
-				   int addr_len, unsigned char addr_type);
-extern int __hw_addr_sync(struct netdev_hw_addr_list *to_list,
-			  struct netdev_hw_addr_list *from_list,
-			  int addr_len);
-extern void __hw_addr_unsync(struct netdev_hw_addr_list *to_list,
-			     struct netdev_hw_addr_list *from_list,
-			     int addr_len);
-extern void __hw_addr_flush(struct netdev_hw_addr_list *list);
-extern void __hw_addr_init(struct netdev_hw_addr_list *list);
+int __hw_addr_add_multiple(struct netdev_hw_addr_list *to_list,
+			   struct netdev_hw_addr_list *from_list,
+			   int addr_len, unsigned char addr_type);
+void __hw_addr_del_multiple(struct netdev_hw_addr_list *to_list,
+			    struct netdev_hw_addr_list *from_list,
+			    int addr_len, unsigned char addr_type);
+int __hw_addr_sync(struct netdev_hw_addr_list *to_list,
+		   struct netdev_hw_addr_list *from_list, int addr_len);
+void __hw_addr_unsync(struct netdev_hw_addr_list *to_list,
+		      struct netdev_hw_addr_list *from_list, int addr_len);
+void __hw_addr_flush(struct netdev_hw_addr_list *list);
+void __hw_addr_init(struct netdev_hw_addr_list *list);
 
 /* Functions used for device addresses handling */
-extern int dev_addr_add(struct net_device *dev, const unsigned char *addr,
-			unsigned char addr_type);
-extern int dev_addr_del(struct net_device *dev, const unsigned char *addr,
-			unsigned char addr_type);
-extern int dev_addr_add_multiple(struct net_device *to_dev,
-				 struct net_device *from_dev,
-				 unsigned char addr_type);
-extern int dev_addr_del_multiple(struct net_device *to_dev,
-				 struct net_device *from_dev,
-				 unsigned char addr_type);
-extern void dev_addr_flush(struct net_device *dev);
-extern int dev_addr_init(struct net_device *dev);
+int dev_addr_add(struct net_device *dev, const unsigned char *addr,
+		 unsigned char addr_type);
+int dev_addr_del(struct net_device *dev, const unsigned char *addr,
+		 unsigned char addr_type);
+int dev_addr_add_multiple(struct net_device *to_dev,
+			  struct net_device *from_dev, unsigned char addr_type);
+int dev_addr_del_multiple(struct net_device *to_dev,
+			  struct net_device *from_dev, unsigned char addr_type);
+void dev_addr_flush(struct net_device *dev);
+int dev_addr_init(struct net_device *dev);
 
 /* Functions used for unicast addresses handling */
-extern int dev_uc_add(struct net_device *dev, const unsigned char *addr);
-extern int dev_uc_add_excl(struct net_device *dev, const unsigned char *addr);
-extern int dev_uc_del(struct net_device *dev, const unsigned char *addr);
-extern int dev_uc_sync(struct net_device *to, struct net_device *from);
-extern int dev_uc_sync_multiple(struct net_device *to, struct net_device *from);
-extern void dev_uc_unsync(struct net_device *to, struct net_device *from);
-extern void dev_uc_flush(struct net_device *dev);
-extern void dev_uc_init(struct net_device *dev);
+int dev_uc_add(struct net_device *dev, const unsigned char *addr);
+int dev_uc_add_excl(struct net_device *dev, const unsigned char *addr);
+int dev_uc_del(struct net_device *dev, const unsigned char *addr);
+int dev_uc_sync(struct net_device *to, struct net_device *from);
+int dev_uc_sync_multiple(struct net_device *to, struct net_device *from);
+void dev_uc_unsync(struct net_device *to, struct net_device *from);
+void dev_uc_flush(struct net_device *dev);
+void dev_uc_init(struct net_device *dev);
 
 /* Functions used for multicast addresses handling */
-extern int dev_mc_add(struct net_device *dev, const unsigned char *addr);
-extern int dev_mc_add_global(struct net_device *dev, const unsigned char *addr);
-extern int dev_mc_add_excl(struct net_device *dev, const unsigned char *addr);
-extern int dev_mc_del(struct net_device *dev, const unsigned char *addr);
-extern int dev_mc_del_global(struct net_device *dev, const unsigned char *addr);
-extern int dev_mc_sync(struct net_device *to, struct net_device *from);
-extern int dev_mc_sync_multiple(struct net_device *to, struct net_device *from);
-extern void dev_mc_unsync(struct net_device *to, struct net_device *from);
-extern void dev_mc_flush(struct net_device *dev);
-extern void dev_mc_init(struct net_device *dev);
+int dev_mc_add(struct net_device *dev, const unsigned char *addr);
+int dev_mc_add_global(struct net_device *dev, const unsigned char *addr);
+int dev_mc_add_excl(struct net_device *dev, const unsigned char *addr);
+int dev_mc_del(struct net_device *dev, const unsigned char *addr);
+int dev_mc_del_global(struct net_device *dev, const unsigned char *addr);
+int dev_mc_sync(struct net_device *to, struct net_device *from);
+int dev_mc_sync_multiple(struct net_device *to, struct net_device *from);
+void dev_mc_unsync(struct net_device *to, struct net_device *from);
+void dev_mc_flush(struct net_device *dev);
+void dev_mc_init(struct net_device *dev);
 
 /* Functions used for secondary unicast and multicast support */
-extern void		dev_set_rx_mode(struct net_device *dev);
-extern void		__dev_set_rx_mode(struct net_device *dev);
-extern int		dev_set_promiscuity(struct net_device *dev, int inc);
-extern int		dev_set_allmulti(struct net_device *dev, int inc);
-extern void		netdev_state_change(struct net_device *dev);
-extern void		netdev_notify_peers(struct net_device *dev);
-extern void		netdev_features_change(struct net_device *dev);
+void dev_set_rx_mode(struct net_device *dev);
+void __dev_set_rx_mode(struct net_device *dev);
+int dev_set_promiscuity(struct net_device *dev, int inc);
+int dev_set_allmulti(struct net_device *dev, int inc);
+void netdev_state_change(struct net_device *dev);
+void netdev_notify_peers(struct net_device *dev);
+void netdev_features_change(struct net_device *dev);
 /* Load a device via the kmod */
-extern void		dev_load(struct net *net, const char *name);
-extern struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev,
-					       struct rtnl_link_stats64 *storage);
-extern void netdev_stats_to_stats64(struct rtnl_link_stats64 *stats64,
-				    const struct net_device_stats *netdev_stats);
+void dev_load(struct net *net, const char *name);
+struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev,
+					struct rtnl_link_stats64 *storage);
+void netdev_stats_to_stats64(struct rtnl_link_stats64 *stats64,
+			     const struct net_device_stats *netdev_stats);
 
 extern int		netdev_max_backlog;
 extern int		netdev_tstamp_prequeue;
 extern int		weight_p;
 extern int		bpf_jit_enable;
 
-extern bool netdev_has_upper_dev(struct net_device *dev,
-				 struct net_device *upper_dev);
-extern bool netdev_has_any_upper_dev(struct net_device *dev);
-extern struct net_device *netdev_all_upper_get_next_dev_rcu(struct net_device *dev,
-							    struct list_head **iter);
+bool netdev_has_upper_dev(struct net_device *dev, struct net_device *upper_dev);
+bool netdev_has_any_upper_dev(struct net_device *dev);
+struct net_device *netdev_all_upper_get_next_dev_rcu(struct net_device *dev,
+						     struct list_head **iter);
 
 /* iterate through upper list, must be called under RCU read lock */
 #define netdev_for_each_all_upper_dev_rcu(dev, updev, iter) \
@@ -2833,10 +2818,10 @@ extern struct net_device *netdev_all_upper_get_next_dev_rcu(struct net_device *d
 	     updev; \
 	     updev = netdev_all_upper_get_next_dev_rcu(dev, &(iter)))
 
-extern void *netdev_lower_get_next_private(struct net_device *dev,
-					   struct list_head **iter);
-extern void *netdev_lower_get_next_private_rcu(struct net_device *dev,
-					       struct list_head **iter);
+void *netdev_lower_get_next_private(struct net_device *dev,
+				    struct list_head **iter);
+void *netdev_lower_get_next_private_rcu(struct net_device *dev,
+					struct list_head **iter);
 
 #define netdev_for_each_lower_private(dev, priv, iter) \
 	for (iter = (dev)->adj_list.lower.next, \
@@ -2850,27 +2835,26 @@ extern void *netdev_lower_get_next_private_rcu(struct net_device *dev,
 	     priv; \
 	     priv = netdev_lower_get_next_private_rcu(dev, &(iter)))
 
-extern void *netdev_adjacent_get_private(struct list_head *adj_list);
-extern struct net_device *netdev_master_upper_dev_get(struct net_device *dev);
-extern struct net_device *netdev_master_upper_dev_get_rcu(struct net_device *dev);
-extern int netdev_upper_dev_link(struct net_device *dev,
+void *netdev_adjacent_get_private(struct list_head *adj_list);
+struct net_device *netdev_master_upper_dev_get(struct net_device *dev);
+struct net_device *netdev_master_upper_dev_get_rcu(struct net_device *dev);
+int netdev_upper_dev_link(struct net_device *dev, struct net_device *upper_dev);
+int netdev_master_upper_dev_link(struct net_device *dev,
 				 struct net_device *upper_dev);
-extern int netdev_master_upper_dev_link(struct net_device *dev,
-					struct net_device *upper_dev);
-extern int netdev_master_upper_dev_link_private(struct net_device *dev,
-						struct net_device *upper_dev,
-						void *private);
-extern void netdev_upper_dev_unlink(struct net_device *dev,
-				    struct net_device *upper_dev);
-extern void *netdev_lower_dev_get_private_rcu(struct net_device *dev,
-					      struct net_device *lower_dev);
-extern void *netdev_lower_dev_get_private(struct net_device *dev,
-					  struct net_device *lower_dev);
-extern int skb_checksum_help(struct sk_buff *skb);
-extern struct sk_buff *__skb_gso_segment(struct sk_buff *skb,
-	netdev_features_t features, bool tx_path);
-extern struct sk_buff *skb_mac_gso_segment(struct sk_buff *skb,
-					  netdev_features_t features);
+int netdev_master_upper_dev_link_private(struct net_device *dev,
+					 struct net_device *upper_dev,
+					 void *private);
+void netdev_upper_dev_unlink(struct net_device *dev,
+			     struct net_device *upper_dev);
+void *netdev_lower_dev_get_private_rcu(struct net_device *dev,
+				       struct net_device *lower_dev);
+void *netdev_lower_dev_get_private(struct net_device *dev,
+				   struct net_device *lower_dev);
+int skb_checksum_help(struct sk_buff *skb);
+struct sk_buff *__skb_gso_segment(struct sk_buff *skb,
+				  netdev_features_t features, bool tx_path);
+struct sk_buff *skb_mac_gso_segment(struct sk_buff *skb,
+				    netdev_features_t features);
 
 static inline
 struct sk_buff *skb_gso_segment(struct sk_buff *skb, netdev_features_t features)
@@ -2892,30 +2876,30 @@ static inline bool can_checksum_protocol(netdev_features_t features,
 }
 
 #ifdef CONFIG_BUG
-extern void netdev_rx_csum_fault(struct net_device *dev);
+void netdev_rx_csum_fault(struct net_device *dev);
 #else
 static inline void netdev_rx_csum_fault(struct net_device *dev)
 {
 }
 #endif
 /* rx skb timestamps */
-extern void		net_enable_timestamp(void);
-extern void		net_disable_timestamp(void);
+void net_enable_timestamp(void);
+void net_disable_timestamp(void);
 
 #ifdef CONFIG_PROC_FS
-extern int __init dev_proc_init(void);
+int __init dev_proc_init(void);
 #else
 #define dev_proc_init() 0
 #endif
 
-extern int netdev_class_create_file(struct class_attribute *class_attr);
-extern void netdev_class_remove_file(struct class_attribute *class_attr);
+int netdev_class_create_file(struct class_attribute *class_attr);
+void netdev_class_remove_file(struct class_attribute *class_attr);
 
 extern struct kobj_ns_type_operations net_ns_type_operations;
 
-extern const char *netdev_drivername(const struct net_device *dev);
+const char *netdev_drivername(const struct net_device *dev);
 
-extern void linkwatch_run_queue(void);
+void linkwatch_run_queue(void);
 
 static inline netdev_features_t netdev_get_wanted_features(
 	struct net_device *dev)
@@ -3007,22 +2991,22 @@ static inline const char *netdev_name(const struct net_device *dev)
 	return dev->name;
 }
 
-extern __printf(3, 4)
+__printf(3, 4)
 int netdev_printk(const char *level, const struct net_device *dev,
 		  const char *format, ...);
-extern __printf(2, 3)
+__printf(2, 3)
 int netdev_emerg(const struct net_device *dev, const char *format, ...);
-extern __printf(2, 3)
+__printf(2, 3)
 int netdev_alert(const struct net_device *dev, const char *format, ...);
-extern __printf(2, 3)
+__printf(2, 3)
 int netdev_crit(const struct net_device *dev, const char *format, ...);
-extern __printf(2, 3)
+__printf(2, 3)
 int netdev_err(const struct net_device *dev, const char *format, ...);
-extern __printf(2, 3)
+__printf(2, 3)
 int netdev_warn(const struct net_device *dev, const char *format, ...);
-extern __printf(2, 3)
+__printf(2, 3)
 int netdev_notice(const struct net_device *dev, const char *format, ...);
-extern __printf(2, 3)
+__printf(2, 3)
 int netdev_info(const struct net_device *dev, const char *format, ...);
 
 #define MODULE_ALIAS_NETDEV(device) \
-- 
cgit 


From e34ff4906199d2ebd248ae897ae34f52bea151c9 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 11 Sep 2013 22:29:05 -0400
Subject: sysfs: remove ktype->namespace() invocations in directory code

For some unrecognizable reason, namespace information is communicated
to sysfs through ktype->namespace() callback when there's *nothing*
which needs the use of a callback.  The whole sequence of operations
is completely synchronous and sysfs operations simply end up calling
back into the layer which just invoked it in order to find out the
namespace information, which is completely backwards, obfuscates
what's going on and unnecessarily tangles two separate layers.

This patch doesn't remove ktype->namespace() but shifts its handling
to kobject layer.  We probably want to get rid of the callback in the
long term.

This patch adds an explicit param to sysfs_{create|rename|move}_dir()
and renames them to sysfs_{create|rename|move}_dir_ns(), respectively.
ktype->namespace() invocations are moved to the calling sites of the
above functions.  A new helper kboject_namespace() is introduced which
directly tests kobj_ns_type_operations->type which should give the
same result as testing sysfs_fs_type(parent_sd) and returns @kobj's
namespace tag as necessary.  kobject_namespace() is extern as it will
be used from another file in the following patches.

This patch should be an equivalent conversion without any functional
difference.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/dir.c          | 23 ++++++++---------------
 include/linux/kobject.h |  1 +
 include/linux/sysfs.h   | 20 ++++++++++++--------
 lib/kobject.c           | 28 ++++++++++++++++++++++++----
 4 files changed, 45 insertions(+), 27 deletions(-)

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 834c64cb7f88..878ac3afe1b8 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -730,14 +730,14 @@ static enum kobj_ns_type sysfs_read_ns_type(struct kobject *kobj)
 }
 
 /**
- *	sysfs_create_dir - create a directory for an object.
- *	@kobj:		object we're creating directory for.
+ * sysfs_create_dir_ns - create a directory for an object with a namespace tag
+ * @kobj: object we're creating directory for
+ * @ns: the namespace tag to use
  */
-int sysfs_create_dir(struct kobject *kobj)
+int sysfs_create_dir_ns(struct kobject *kobj, const void *ns)
 {
 	enum kobj_ns_type type;
 	struct sysfs_dirent *parent_sd, *sd;
-	const void *ns = NULL;
 	int error = 0;
 
 	BUG_ON(!kobj);
@@ -750,8 +750,6 @@ int sysfs_create_dir(struct kobject *kobj)
 	if (!parent_sd)
 		return -ENOENT;
 
-	if (sysfs_ns_type(parent_sd))
-		ns = kobj->ktype->namespace(kobj);
 	type = sysfs_read_ns_type(kobj);
 
 	error = create_dir(kobj, parent_sd, type, ns, kobject_name(kobj), &sd);
@@ -909,26 +907,21 @@ int sysfs_rename(struct sysfs_dirent *sd,
 	return error;
 }
 
-int sysfs_rename_dir(struct kobject *kobj, const char *new_name)
+int sysfs_rename_dir_ns(struct kobject *kobj, const char *new_name,
+			const void *new_ns)
 {
 	struct sysfs_dirent *parent_sd = kobj->sd->s_parent;
-	const void *new_ns = NULL;
-
-	if (sysfs_ns_type(parent_sd))
-		new_ns = kobj->ktype->namespace(kobj);
 
 	return sysfs_rename(kobj->sd, parent_sd, new_ns, new_name);
 }
 
-int sysfs_move_dir(struct kobject *kobj, struct kobject *new_parent_kobj)
+int sysfs_move_dir_ns(struct kobject *kobj, struct kobject *new_parent_kobj,
+		      const void *new_ns)
 {
 	struct sysfs_dirent *sd = kobj->sd;
 	struct sysfs_dirent *new_parent_sd;
-	const void *new_ns = NULL;
 
 	BUG_ON(!sd->s_parent);
-	if (sysfs_ns_type(sd->s_parent))
-		new_ns = kobj->ktype->namespace(kobj);
 	new_parent_sd = new_parent_kobj && new_parent_kobj->sd ?
 		new_parent_kobj->sd : &sysfs_root;
 
diff --git a/include/linux/kobject.h b/include/linux/kobject.h
index de6dcbcc6ef7..e7ba650086ce 100644
--- a/include/linux/kobject.h
+++ b/include/linux/kobject.h
@@ -107,6 +107,7 @@ extern int __must_check kobject_move(struct kobject *, struct kobject *);
 extern struct kobject *kobject_get(struct kobject *kobj);
 extern void kobject_put(struct kobject *kobj);
 
+extern const void *kobject_namespace(struct kobject *kobj);
 extern char *kobject_get_path(struct kobject *kobj, gfp_t flag);
 
 struct kobj_type {
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 82f7fac78e77..7f56bad3be82 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -182,11 +182,13 @@ struct sysfs_dirent;
 int sysfs_schedule_callback(struct kobject *kobj, void (*func)(void *),
 			    void *data, struct module *owner);
 
-int __must_check sysfs_create_dir(struct kobject *kobj);
+int __must_check sysfs_create_dir_ns(struct kobject *kobj, const void *ns);
 void sysfs_remove_dir(struct kobject *kobj);
-int __must_check sysfs_rename_dir(struct kobject *kobj, const char *new_name);
-int __must_check sysfs_move_dir(struct kobject *kobj,
-				struct kobject *new_parent_kobj);
+int __must_check sysfs_rename_dir_ns(struct kobject *kobj, const char *new_name,
+				     const void *new_ns);
+int __must_check sysfs_move_dir_ns(struct kobject *kobj,
+				   struct kobject *new_parent_kobj,
+				   const void *new_ns);
 
 int __must_check sysfs_create_file_ns(struct kobject *kobj,
 				      const struct attribute *attr,
@@ -258,7 +260,7 @@ static inline int sysfs_schedule_callback(struct kobject *kobj,
 	return -ENOSYS;
 }
 
-static inline int sysfs_create_dir(struct kobject *kobj)
+static inline int sysfs_create_dir_ns(struct kobject *kobj, const void *ns)
 {
 	return 0;
 }
@@ -267,13 +269,15 @@ static inline void sysfs_remove_dir(struct kobject *kobj)
 {
 }
 
-static inline int sysfs_rename_dir(struct kobject *kobj, const char *new_name)
+static inline int sysfs_rename_dir_ns(struct kobject *kobj,
+				      const char *new_name, const void *new_ns)
 {
 	return 0;
 }
 
-static inline int sysfs_move_dir(struct kobject *kobj,
-				 struct kobject *new_parent_kobj)
+static inline int sysfs_move_dir_ns(struct kobject *kobj,
+				    struct kobject *new_parent_kobj,
+				    const void *new_ns)
 {
 	return 0;
 }
diff --git a/lib/kobject.c b/lib/kobject.c
index 962175134702..85fb3a161b21 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -18,6 +18,24 @@
 #include <linux/stat.h>
 #include <linux/slab.h>
 
+/**
+ * kobject_namespace - return @kobj's namespace tag
+ * @kobj: kobject in question
+ *
+ * Returns namespace tag of @kobj if its parent has namespace ops enabled
+ * and thus @kobj should have a namespace tag associated with it.  Returns
+ * %NULL otherwise.
+ */
+const void *kobject_namespace(struct kobject *kobj)
+{
+	const struct kobj_ns_type_operations *ns_ops = kobj_ns_ops(kobj);
+
+	if (!ns_ops || ns_ops->type == KOBJ_NS_TYPE_NONE)
+		return NULL;
+
+	return kobj->ktype->namespace(kobj);
+}
+
 /*
  * populate_dir - populate directory with attributes.
  * @kobj: object we're working on.
@@ -46,8 +64,9 @@ static int populate_dir(struct kobject *kobj)
 
 static int create_dir(struct kobject *kobj)
 {
-	int error = 0;
-	error = sysfs_create_dir(kobj);
+	int error;
+
+	error = sysfs_create_dir_ns(kobj, kobject_namespace(kobj));
 	if (!error) {
 		error = populate_dir(kobj);
 		if (error)
@@ -428,7 +447,7 @@ int kobject_rename(struct kobject *kobj, const char *new_name)
 		goto out;
 	}
 
-	error = sysfs_rename_dir(kobj, new_name);
+	error = sysfs_rename_dir_ns(kobj, new_name, kobject_namespace(kobj));
 	if (error)
 		goto out;
 
@@ -472,6 +491,7 @@ int kobject_move(struct kobject *kobj, struct kobject *new_parent)
 		if (kobj->kset)
 			new_parent = kobject_get(&kobj->kset->kobj);
 	}
+
 	/* old object path */
 	devpath = kobject_get_path(kobj, GFP_KERNEL);
 	if (!devpath) {
@@ -486,7 +506,7 @@ int kobject_move(struct kobject *kobj, struct kobject *new_parent)
 	sprintf(devpath_string, "DEVPATH_OLD=%s", devpath);
 	envp[0] = devpath_string;
 	envp[1] = NULL;
-	error = sysfs_move_dir(kobj, new_parent);
+	error = sysfs_move_dir_ns(kobj, new_parent, kobject_namespace(kobj));
 	if (error)
 		goto out;
 	old_parent = kobj->parent;
-- 
cgit 


From 4b30ee58ee64c64f59fd876e4afa6ed82caef3a4 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 11 Sep 2013 22:29:06 -0400
Subject: sysfs: remove ktype->namespace() invocations in symlink code

There's no reason for sysfs to be calling ktype->namespace().  It is
backwards, obfuscates what's going on and unnecessarily tangles two
separate layers.

There are two places where symlink code calls ktype->namespace().

* sysfs_do_create_link_sd() calls it to find out the namespace tag of
  the target directory.  Unless symlinking races with cross-namespace
  renaming, this equals @target_sd->s_ns.

* sysfs_rename_link() uses it to find out the new namespace to rename
  to and the new namespace can be different from the existing one.
  The function is renamed to sysfs_rename_link_ns() with an explicit
  @ns argument and the ktype->namespace() invocation is shifted to the
  device layer.

While this patch replaces ktype->namespace() invocation with the
recorded result in @target_sd, this shouldn't result in any behvior
difference.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/base/core.c   |  8 +++++---
 fs/sysfs/symlink.c    | 16 +++++++---------
 include/linux/sysfs.h | 16 ++++++++++++----
 3 files changed, 24 insertions(+), 16 deletions(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index c7cfadcf6752..3335000be2dc 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -1881,6 +1881,7 @@ EXPORT_SYMBOL_GPL(device_destroy);
  */
 int device_rename(struct device *dev, const char *new_name)
 {
+	struct kobject *kobj = &dev->kobj;
 	char *old_device_name = NULL;
 	int error;
 
@@ -1898,13 +1899,14 @@ int device_rename(struct device *dev, const char *new_name)
 	}
 
 	if (dev->class) {
-		error = sysfs_rename_link(&dev->class->p->subsys.kobj,
-			&dev->kobj, old_device_name, new_name);
+		error = sysfs_rename_link_ns(&dev->class->p->subsys.kobj,
+					     kobj, old_device_name,
+					     new_name, kobject_namespace(kobj));
 		if (error)
 			goto out;
 	}
 
-	error = kobject_rename(&dev->kobj, new_name);
+	error = kobject_rename(kobj, new_name);
 	if (error)
 		goto out;
 
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index 2dd4507d9edd..12d58ada3e6d 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -52,7 +52,7 @@ static int sysfs_do_create_link_sd(struct sysfs_dirent *parent_sd,
 
 	ns_type = sysfs_ns_type(parent_sd);
 	if (ns_type)
-		sd->s_ns = target->ktype->namespace(target);
+		sd->s_ns = target_sd->s_ns;
 	sd->s_symlink.target_sd = target_sd;
 	target_sd = NULL;	/* reference is now owned by the symlink */
 
@@ -181,19 +181,20 @@ void sysfs_remove_link(struct kobject *kobj, const char *name)
 EXPORT_SYMBOL_GPL(sysfs_remove_link);
 
 /**
- *	sysfs_rename_link - rename symlink in object's directory.
+ *	sysfs_rename_link_ns - rename symlink in object's directory.
  *	@kobj:	object we're acting for.
  *	@targ:	object we're pointing to.
  *	@old:	previous name of the symlink.
  *	@new:	new name of the symlink.
+ *	@new_ns: new namespace of the symlink.
  *
  *	A helper function for the common rename symlink idiom.
  */
-int sysfs_rename_link(struct kobject *kobj, struct kobject *targ,
-			const char *old, const char *new)
+int sysfs_rename_link_ns(struct kobject *kobj, struct kobject *targ,
+			 const char *old, const char *new, const void *new_ns)
 {
 	struct sysfs_dirent *parent_sd, *sd = NULL;
-	const void *old_ns = NULL, *new_ns = NULL;
+	const void *old_ns = NULL;
 	int result;
 
 	if (!kobj)
@@ -215,16 +216,13 @@ int sysfs_rename_link(struct kobject *kobj, struct kobject *targ,
 	if (sd->s_symlink.target_sd->s_dir.kobj != targ)
 		goto out;
 
-	if (sysfs_ns_type(parent_sd))
-		new_ns = targ->ktype->namespace(targ);
-
 	result = sysfs_rename(sd, parent_sd, new_ns, new);
 
 out:
 	sysfs_put(sd);
 	return result;
 }
-EXPORT_SYMBOL_GPL(sysfs_rename_link);
+EXPORT_SYMBOL_GPL(sysfs_rename_link_ns);
 
 static int sysfs_get_target_path(struct sysfs_dirent *parent_sd,
 				 struct sysfs_dirent *target_sd, char *path)
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 7f56bad3be82..c792f73ac7fa 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -213,8 +213,9 @@ int __must_check sysfs_create_link_nowarn(struct kobject *kobj,
 					  const char *name);
 void sysfs_remove_link(struct kobject *kobj, const char *name);
 
-int sysfs_rename_link(struct kobject *kobj, struct kobject *target,
-			const char *old_name, const char *new_name);
+int sysfs_rename_link_ns(struct kobject *kobj, struct kobject *target,
+			 const char *old_name, const char *new_name,
+			 const void *new_ns);
 
 void sysfs_delete_link(struct kobject *dir, struct kobject *targ,
 			const char *name);
@@ -340,8 +341,9 @@ static inline void sysfs_remove_link(struct kobject *kobj, const char *name)
 {
 }
 
-static inline int sysfs_rename_link(struct kobject *k, struct kobject *t,
-				    const char *old_name, const char *new_name)
+static inline int sysfs_rename_link_ns(struct kobject *k, struct kobject *t,
+				       const char *old_name,
+				       const char *new_name, const void *ns)
 {
 	return 0;
 }
@@ -454,4 +456,10 @@ static inline void sysfs_remove_file(struct kobject *kobj,
 	return sysfs_remove_file_ns(kobj, attr, NULL);
 }
 
+static inline int sysfs_rename_link(struct kobject *kobj, struct kobject *target,
+				    const char *old_name, const char *new_name)
+{
+	return sysfs_rename_link_ns(kobj, target, old_name, new_name, NULL);
+}
+
 #endif /* _SYSFS_H_ */
-- 
cgit 


From cb26a311578e67769e92a39a0a63476533cb7e12 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 11 Sep 2013 22:29:07 -0400
Subject: sysfs: drop kobj_ns_type handling

The way namespace tags are implemented in sysfs is more complicated
than necessary.  As each tag is a pointer value and required to be
non-NULL under a namespace enabled parent, there's no need to record
separately what type each tag is or where namespace is enabled.

If multiple namespace types are needed, which currently aren't, we can
simply compare the tag to a set of allowed tags in the superblock
assuming that the tags, being pointers, won't have the same value
across multiple types.  Also, whether to filter by namespace tag or
not can be trivially determined by whether the node has any tagged
children or not.

This patch rips out kobj_ns_type handling from sysfs.  sysfs no longer
cares whether specific type of namespace is enabled or not.  If a
sysfs_dirent has a non-NULL tag, the parent is marked as needing
namespace filtering and the value is tested against the allowed set of
tags for the superblock (currently only one but increasing this number
isn't difficult) and the sysfs_dirent is ignored if it doesn't match.

This removes most kobject namespace knowledge from sysfs proper which
will enable proper separation and layering of sysfs.  The namespace
sanity checks in fs/sysfs/dir.c are replaced by the new sanity check
in kobject_namespace().  As this is the only place ktype->namespace()
is called for sysfs, this doesn't weaken the sanity check
significantly.  I omitted converting the sanity check in
sysfs_do_create_link_sd().  While the check can be shifted to upper
layer, mistakes there are well contained and should be easily visible
anyway.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/dir.c     | 90 +++++++++++++++---------------------------------------
 fs/sysfs/mount.c   | 24 ++++-----------
 fs/sysfs/symlink.c | 27 ++++------------
 fs/sysfs/sysfs.h   | 25 +++++----------
 lib/kobject.c      |  5 ++-
 5 files changed, 48 insertions(+), 123 deletions(-)

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 878ac3afe1b8..1dfb4aaf9446 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -111,6 +111,11 @@ static int sysfs_link_sibling(struct sysfs_dirent *sd)
 	/* add new node and rebalance the tree */
 	rb_link_node(&sd->s_rb, parent, node);
 	rb_insert_color(&sd->s_rb, &sd->s_parent->s_dir.children);
+
+	/* if @sd has ns tag, mark the parent to enable ns filtering */
+	if (sd->s_ns)
+		sd->s_parent->s_flags |= SYSFS_FLAG_HAS_NS;
+
 	return 0;
 }
 
@@ -130,6 +135,13 @@ static void sysfs_unlink_sibling(struct sysfs_dirent *sd)
 		sd->s_parent->s_dir.subdirs--;
 
 	rb_erase(&sd->s_rb, &sd->s_parent->s_dir.children);
+
+	/*
+	 * Either all or none of the children have tags.  Clearing HAS_NS
+	 * when there's no child left is enough to keep the flag synced.
+	 */
+	if (RB_EMPTY_ROOT(&sd->s_parent->s_dir.children))
+		sd->s_parent->s_flags &= ~SYSFS_FLAG_HAS_NS;
 }
 
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
@@ -297,7 +309,6 @@ static int sysfs_dentry_delete(const struct dentry *dentry)
 static int sysfs_dentry_revalidate(struct dentry *dentry, unsigned int flags)
 {
 	struct sysfs_dirent *sd;
-	int type;
 
 	if (flags & LOOKUP_RCU)
 		return -ECHILD;
@@ -318,13 +329,8 @@ static int sysfs_dentry_revalidate(struct dentry *dentry, unsigned int flags)
 		goto out_bad;
 
 	/* The sysfs dirent has been moved to a different namespace */
-	type = KOBJ_NS_TYPE_NONE;
-	if (sd->s_parent) {
-		type = sysfs_ns_type(sd->s_parent);
-		if (type != KOBJ_NS_TYPE_NONE &&
-				sysfs_info(dentry->d_sb)->ns[type] != sd->s_ns)
-			goto out_bad;
-	}
+	if (sd->s_ns && sd->s_ns != sysfs_info(dentry->d_sb)->ns)
+		goto out_bad;
 
 	mutex_unlock(&sysfs_mutex);
 out_valid:
@@ -445,13 +451,6 @@ int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd)
 	struct sysfs_inode_attrs *ps_iattr;
 	int ret;
 
-	if (!!sysfs_ns_type(acxt->parent_sd) != !!sd->s_ns) {
-		WARN(1, KERN_WARNING "sysfs: ns %s in '%s' for '%s'\n",
-			sysfs_ns_type(acxt->parent_sd) ? "required" : "invalid",
-			acxt->parent_sd->s_name, sd->s_name);
-		return -EINVAL;
-	}
-
 	sd->s_hash = sysfs_name_hash(sd->s_ns, sd->s_name);
 	sd->s_parent = sysfs_get(acxt->parent_sd);
 
@@ -613,13 +612,6 @@ struct sysfs_dirent *sysfs_find_dirent(struct sysfs_dirent *parent_sd,
 	struct rb_node *node = parent_sd->s_dir.children.rb_node;
 	unsigned int hash;
 
-	if (!!sysfs_ns_type(parent_sd) != !!ns) {
-		WARN(1, KERN_WARNING "sysfs: ns %s in '%s' for '%s'\n",
-			sysfs_ns_type(parent_sd) ? "required" : "invalid",
-			parent_sd->s_name, name);
-		return NULL;
-	}
-
 	hash = sysfs_name_hash(ns, name);
 	while (node) {
 		struct sysfs_dirent *sd;
@@ -667,8 +659,7 @@ struct sysfs_dirent *sysfs_get_dirent(struct sysfs_dirent *parent_sd,
 EXPORT_SYMBOL_GPL(sysfs_get_dirent);
 
 static int create_dir(struct kobject *kobj, struct sysfs_dirent *parent_sd,
-	enum kobj_ns_type type, const void *ns, const char *name,
-	struct sysfs_dirent **p_sd)
+	const void *ns, const char *name, struct sysfs_dirent **p_sd)
 {
 	umode_t mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO;
 	struct sysfs_addrm_cxt acxt;
@@ -680,7 +671,6 @@ static int create_dir(struct kobject *kobj, struct sysfs_dirent *parent_sd,
 	if (!sd)
 		return -ENOMEM;
 
-	sd->s_flags |= (type << SYSFS_NS_TYPE_SHIFT);
 	sd->s_ns = ns;
 	sd->s_dir.kobj = kobj;
 
@@ -700,33 +690,7 @@ static int create_dir(struct kobject *kobj, struct sysfs_dirent *parent_sd,
 int sysfs_create_subdir(struct kobject *kobj, const char *name,
 			struct sysfs_dirent **p_sd)
 {
-	return create_dir(kobj, kobj->sd,
-			  KOBJ_NS_TYPE_NONE, NULL, name, p_sd);
-}
-
-/**
- *	sysfs_read_ns_type: return associated ns_type
- *	@kobj: the kobject being queried
- *
- *	Each kobject can be tagged with exactly one namespace type
- *	(i.e. network or user).  Return the ns_type associated with
- *	this object if any
- */
-static enum kobj_ns_type sysfs_read_ns_type(struct kobject *kobj)
-{
-	const struct kobj_ns_type_operations *ops;
-	enum kobj_ns_type type;
-
-	ops = kobj_child_ns_ops(kobj);
-	if (!ops)
-		return KOBJ_NS_TYPE_NONE;
-
-	type = ops->type;
-	BUG_ON(type <= KOBJ_NS_TYPE_NONE);
-	BUG_ON(type >= KOBJ_NS_TYPES);
-	BUG_ON(!kobj_ns_type_registered(type));
-
-	return type;
+	return create_dir(kobj, kobj->sd, NULL, name, p_sd);
 }
 
 /**
@@ -736,7 +700,6 @@ static enum kobj_ns_type sysfs_read_ns_type(struct kobject *kobj)
  */
 int sysfs_create_dir_ns(struct kobject *kobj, const void *ns)
 {
-	enum kobj_ns_type type;
 	struct sysfs_dirent *parent_sd, *sd;
 	int error = 0;
 
@@ -750,9 +713,7 @@ int sysfs_create_dir_ns(struct kobject *kobj, const void *ns)
 	if (!parent_sd)
 		return -ENOENT;
 
-	type = sysfs_read_ns_type(kobj);
-
-	error = create_dir(kobj, parent_sd, type, ns, kobject_name(kobj), &sd);
+	error = create_dir(kobj, parent_sd, ns, kobject_name(kobj), &sd);
 	if (!error)
 		kobj->sd = sd;
 	return error;
@@ -766,13 +727,12 @@ static struct dentry *sysfs_lookup(struct inode *dir, struct dentry *dentry,
 	struct sysfs_dirent *parent_sd = parent->d_fsdata;
 	struct sysfs_dirent *sd;
 	struct inode *inode;
-	enum kobj_ns_type type;
-	const void *ns;
+	const void *ns = NULL;
 
 	mutex_lock(&sysfs_mutex);
 
-	type = sysfs_ns_type(parent_sd);
-	ns = sysfs_info(dir->i_sb)->ns[type];
+	if (parent_sd->s_flags & SYSFS_FLAG_HAS_NS)
+		ns = sysfs_info(dir->i_sb)->ns;
 
 	sd = sysfs_find_dirent(parent_sd, ns, dentry->d_name.name);
 
@@ -995,15 +955,15 @@ static int sysfs_readdir(struct file *file, struct dir_context *ctx)
 	struct dentry *dentry = file->f_path.dentry;
 	struct sysfs_dirent *parent_sd = dentry->d_fsdata;
 	struct sysfs_dirent *pos = file->private_data;
-	enum kobj_ns_type type;
-	const void *ns;
-
-	type = sysfs_ns_type(parent_sd);
-	ns = sysfs_info(dentry->d_sb)->ns[type];
+	const void *ns = NULL;
 
 	if (!dir_emit_dots(file, ctx))
 		return 0;
 	mutex_lock(&sysfs_mutex);
+
+	if (parent_sd->s_flags & SYSFS_FLAG_HAS_NS)
+		ns = sysfs_info(dentry->d_sb)->ns;
+
 	for (pos = sysfs_dir_pos(ns, parent_sd, ctx->pos, pos);
 	     pos;
 	     pos = sysfs_dir_next_pos(ns, parent_sd, ctx->pos, pos)) {
diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c
index 834ec2cdb7a3..8c24bce2f4ae 100644
--- a/fs/sysfs/mount.c
+++ b/fs/sysfs/mount.c
@@ -36,7 +36,7 @@ static const struct super_operations sysfs_ops = {
 struct sysfs_dirent sysfs_root = {
 	.s_name		= "",
 	.s_count	= ATOMIC_INIT(1),
-	.s_flags	= SYSFS_DIR | (KOBJ_NS_TYPE_NONE << SYSFS_NS_TYPE_SHIFT),
+	.s_flags	= SYSFS_DIR,
 	.s_mode		= S_IFDIR | S_IRUGO | S_IXUGO,
 	.s_ino		= 1,
 };
@@ -77,14 +77,8 @@ static int sysfs_test_super(struct super_block *sb, void *data)
 {
 	struct sysfs_super_info *sb_info = sysfs_info(sb);
 	struct sysfs_super_info *info = data;
-	enum kobj_ns_type type;
-	int found = 1;
 
-	for (type = KOBJ_NS_TYPE_NONE; type < KOBJ_NS_TYPES; type++) {
-		if (sb_info->ns[type] != info->ns[type])
-			found = 0;
-	}
-	return found;
+	return sb_info->ns == info->ns;
 }
 
 static int sysfs_set_super(struct super_block *sb, void *data)
@@ -98,9 +92,7 @@ static int sysfs_set_super(struct super_block *sb, void *data)
 
 static void free_sysfs_super_info(struct sysfs_super_info *info)
 {
-	int type;
-	for (type = KOBJ_NS_TYPE_NONE; type < KOBJ_NS_TYPES; type++)
-		kobj_ns_drop(type, info->ns[type]);
+	kobj_ns_drop(KOBJ_NS_TYPE_NET, info->ns);
 	kfree(info);
 }
 
@@ -108,7 +100,6 @@ static struct dentry *sysfs_mount(struct file_system_type *fs_type,
 	int flags, const char *dev_name, void *data)
 {
 	struct sysfs_super_info *info;
-	enum kobj_ns_type type;
 	struct super_block *sb;
 	int error;
 
@@ -116,18 +107,15 @@ static struct dentry *sysfs_mount(struct file_system_type *fs_type,
 		if (!capable(CAP_SYS_ADMIN) && !fs_fully_visible(fs_type))
 			return ERR_PTR(-EPERM);
 
-		for (type = KOBJ_NS_TYPE_NONE; type < KOBJ_NS_TYPES; type++) {
-			if (!kobj_ns_current_may_mount(type))
-				return ERR_PTR(-EPERM);
-		}
+		if (!kobj_ns_current_may_mount(KOBJ_NS_TYPE_NET))
+			return ERR_PTR(-EPERM);
 	}
 
 	info = kzalloc(sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return ERR_PTR(-ENOMEM);
 
-	for (type = KOBJ_NS_TYPE_NONE; type < KOBJ_NS_TYPES; type++)
-		info->ns[type] = kobj_ns_grab_current(type);
+	info->ns = kobj_ns_grab_current(KOBJ_NS_TYPE_NET);
 
 	sb = sget(fs_type, sysfs_test_super, sysfs_set_super, flags, info);
 	if (IS_ERR(sb) || sb->s_fs_info != info)
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index 12d58ada3e6d..7d981ce2e87f 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -28,7 +28,6 @@ static int sysfs_do_create_link_sd(struct sysfs_dirent *parent_sd,
 	struct sysfs_dirent *target_sd = NULL;
 	struct sysfs_dirent *sd = NULL;
 	struct sysfs_addrm_cxt acxt;
-	enum kobj_ns_type ns_type;
 	int error;
 
 	BUG_ON(!name || !parent_sd);
@@ -50,29 +49,15 @@ static int sysfs_do_create_link_sd(struct sysfs_dirent *parent_sd,
 	if (!sd)
 		goto out_put;
 
-	ns_type = sysfs_ns_type(parent_sd);
-	if (ns_type)
-		sd->s_ns = target_sd->s_ns;
+	sd->s_ns = target_sd->s_ns;
 	sd->s_symlink.target_sd = target_sd;
 	target_sd = NULL;	/* reference is now owned by the symlink */
 
 	sysfs_addrm_start(&acxt, parent_sd);
-	/* Symlinks must be between directories with the same ns_type */
-	if (!ns_type ||
-	    (ns_type == sysfs_ns_type(sd->s_symlink.target_sd->s_parent))) {
-		if (warn)
-			error = sysfs_add_one(&acxt, sd);
-		else
-			error = __sysfs_add_one(&acxt, sd);
-	} else {
-		error = -EINVAL;
-		WARN(1, KERN_WARNING
-			"sysfs: symlink across ns_types %s/%s -> %s/%s\n",
-			parent_sd->s_name,
-			sd->s_name,
-			sd->s_symlink.target_sd->s_parent->s_name,
-			sd->s_symlink.target_sd->s_name);
-	}
+	if (warn)
+		error = sysfs_add_one(&acxt, sd);
+	else
+		error = __sysfs_add_one(&acxt, sd);
 	sysfs_addrm_finish(&acxt);
 
 	if (error)
@@ -156,7 +141,7 @@ void sysfs_delete_link(struct kobject *kobj, struct kobject *targ,
 {
 	const void *ns = NULL;
 	spin_lock(&sysfs_assoc_lock);
-	if (targ->sd && sysfs_ns_type(kobj->sd))
+	if (targ->sd)
 		ns = targ->sd->s_ns;
 	spin_unlock(&sysfs_assoc_lock);
 	sysfs_hash_and_remove(kobj->sd, ns, name);
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index a96da2559db2..7664d1b3d594 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -93,11 +93,8 @@ struct sysfs_dirent {
 #define SYSFS_COPY_NAME			(SYSFS_DIR | SYSFS_KOBJ_LINK)
 #define SYSFS_ACTIVE_REF		(SYSFS_KOBJ_ATTR | SYSFS_KOBJ_BIN_ATTR)
 
-/* identify any namespace tag on sysfs_dirents */
-#define SYSFS_NS_TYPE_MASK		0xf00
-#define SYSFS_NS_TYPE_SHIFT		8
-
-#define SYSFS_FLAG_MASK			~(SYSFS_NS_TYPE_MASK|SYSFS_TYPE_MASK)
+#define SYSFS_FLAG_MASK			~SYSFS_TYPE_MASK
+#define SYSFS_FLAG_HAS_NS		0x01000
 #define SYSFS_FLAG_REMOVED		0x02000
 
 static inline unsigned int sysfs_type(struct sysfs_dirent *sd)
@@ -105,15 +102,6 @@ static inline unsigned int sysfs_type(struct sysfs_dirent *sd)
 	return sd->s_flags & SYSFS_TYPE_MASK;
 }
 
-/*
- * Return any namespace tags on this dirent.
- * enum kobj_ns_type is defined in linux/kobject.h
- */
-static inline enum kobj_ns_type sysfs_ns_type(struct sysfs_dirent *sd)
-{
-	return (sd->s_flags & SYSFS_NS_TYPE_MASK) >> SYSFS_NS_TYPE_SHIFT;
-}
-
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
 #define sysfs_dirent_init_lockdep(sd)				\
 do {								\
@@ -141,12 +129,13 @@ struct sysfs_addrm_cxt {
  */
 
 /*
- * Each sb is associated with a set of namespace tags (i.e.
- * the network namespace of the task which mounted this sysfs
- * instance).
+ * Each sb is associated with one namespace tag, currently the network
+ * namespace of the task which mounted this sysfs instance.  If multiple
+ * tags become necessary, make the following an array and compare
+ * sysfs_dirent tag against every entry.
  */
 struct sysfs_super_info {
-	void *ns[KOBJ_NS_TYPES];
+	void *ns;
 };
 #define sysfs_info(SB) ((struct sysfs_super_info *)(SB->s_fs_info))
 extern struct sysfs_dirent sysfs_root;
diff --git a/lib/kobject.c b/lib/kobject.c
index 85fb3a161b21..e769ee3c2fb9 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -29,11 +29,14 @@
 const void *kobject_namespace(struct kobject *kobj)
 {
 	const struct kobj_ns_type_operations *ns_ops = kobj_ns_ops(kobj);
+	const void *ns;
 
 	if (!ns_ops || ns_ops->type == KOBJ_NS_TYPE_NONE)
 		return NULL;
 
-	return kobj->ktype->namespace(kobj);
+	ns = kobj->ktype->namespace(kobj);
+	WARN_ON(!ns);	/* @kobj in a namespace is required to have !NULL tag */
+	return ns;
 }
 
 /*
-- 
cgit 


From 388975cccaaf11abd47525f664c76891c440481a Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 11 Sep 2013 23:19:13 -0400
Subject: sysfs: clean up sysfs_get_dirent()

The pre-existing sysfs interfaces which take explicit namespace
argument are weird in that they place the optional @ns in front of
@name which is contrary to the established convention.  For example,
we end up forcing vast majority of sysfs_get_dirent() users to do
sysfs_get_dirent(parent, NULL, name), which is silly and error-prone
especially as @ns and @name may be interchanged without causing
compilation warning.

This renames sysfs_get_dirent() to sysfs_get_dirent_ns() and swap the
positions of @name and @ns, and sysfs_get_dirent() is now a wrapper
around sysfs_get_dirent_ns().  This makes confusions a lot less
likely.

There are other interfaces which take @ns before @name.  They'll be
updated by following patches.

This patch doesn't introduce any functional changes.

v2: EXPORT_SYMBOL_GPL() wasn't updated leading to undefined symbol
    error on module builds.  Reported by build test robot.  Fixed.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Kay Sievers <kay@vrfy.org>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpio/gpiolib.c |  2 +-
 drivers/md/bitmap.c    |  4 ++--
 drivers/md/md.c        |  2 +-
 drivers/md/md.h        |  2 +-
 fs/sysfs/dir.c         | 11 ++++++-----
 fs/sysfs/file.c        |  4 ++--
 fs/sysfs/group.c       | 10 +++++-----
 fs/sysfs/symlink.c     |  2 +-
 fs/sysfs/sysfs.h       |  3 ---
 include/linux/sysfs.h  | 19 ++++++++++++-------
 10 files changed, 31 insertions(+), 28 deletions(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 86ef3461ec06..a094356020a6 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -408,7 +408,7 @@ static int gpio_setup_irq(struct gpio_desc *desc, struct device *dev,
 			IRQF_TRIGGER_FALLING : IRQF_TRIGGER_RISING;
 
 	if (!value_sd) {
-		value_sd = sysfs_get_dirent(dev->kobj.sd, NULL, "value");
+		value_sd = sysfs_get_dirent(dev->kobj.sd, "value");
 		if (!value_sd) {
 			ret = -ENODEV;
 			goto err_out;
diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index a7fd82133b12..12dc29ba7399 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -1654,9 +1654,9 @@ int bitmap_create(struct mddev *mddev)
 	bitmap->mddev = mddev;
 
 	if (mddev->kobj.sd)
-		bm = sysfs_get_dirent(mddev->kobj.sd, NULL, "bitmap");
+		bm = sysfs_get_dirent(mddev->kobj.sd, "bitmap");
 	if (bm) {
-		bitmap->sysfs_can_clear = sysfs_get_dirent(bm, NULL, "can_clear");
+		bitmap->sysfs_can_clear = sysfs_get_dirent(bm, "can_clear");
 		sysfs_put(bm);
 	} else
 		bitmap->sysfs_can_clear = NULL;
diff --git a/drivers/md/md.c b/drivers/md/md.c
index adf4d7e1d5e1..8a0d7625681c 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -3555,7 +3555,7 @@ level_store(struct mddev *mddev, const char *buf, size_t len)
 			printk(KERN_WARNING
 			       "md: cannot register extra attributes for %s\n",
 			       mdname(mddev));
-		mddev->sysfs_action = sysfs_get_dirent(mddev->kobj.sd, NULL, "sync_action");
+		mddev->sysfs_action = sysfs_get_dirent(mddev->kobj.sd, "sync_action");
 	}		
 	if (mddev->pers->sync_request != NULL &&
 	    pers->sync_request == NULL) {
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 608050c43f17..b0051f2fbc0c 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -501,7 +501,7 @@ extern struct attribute_group md_bitmap_group;
 static inline struct sysfs_dirent *sysfs_get_dirent_safe(struct sysfs_dirent *sd, char *name)
 {
 	if (sd)
-		return sysfs_get_dirent(sd, NULL, name);
+		return sysfs_get_dirent(sd, name);
 	return sd;
 }
 static inline void sysfs_notify_dirent_safe(struct sysfs_dirent *sd)
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 1dfb4aaf9446..fee19d16e4a2 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -630,9 +630,10 @@ struct sysfs_dirent *sysfs_find_dirent(struct sysfs_dirent *parent_sd,
 }
 
 /**
- *	sysfs_get_dirent - find and get sysfs_dirent with the given name
+ *	sysfs_get_dirent_ns - find and get sysfs_dirent with the given name
  *	@parent_sd: sysfs_dirent to search under
  *	@name: name to look for
+ *	@ns: the namespace tag to use
  *
  *	Look for sysfs_dirent with name @name under @parent_sd and get
  *	it if found.
@@ -643,9 +644,9 @@ struct sysfs_dirent *sysfs_find_dirent(struct sysfs_dirent *parent_sd,
  *	RETURNS:
  *	Pointer to sysfs_dirent if found, NULL if not.
  */
-struct sysfs_dirent *sysfs_get_dirent(struct sysfs_dirent *parent_sd,
-				      const void *ns,
-				      const unsigned char *name)
+struct sysfs_dirent *sysfs_get_dirent_ns(struct sysfs_dirent *parent_sd,
+					 const unsigned char *name,
+					 const void *ns)
 {
 	struct sysfs_dirent *sd;
 
@@ -656,7 +657,7 @@ struct sysfs_dirent *sysfs_get_dirent(struct sysfs_dirent *parent_sd,
 
 	return sd;
 }
-EXPORT_SYMBOL_GPL(sysfs_get_dirent);
+EXPORT_SYMBOL_GPL(sysfs_get_dirent_ns);
 
 static int create_dir(struct kobject *kobj, struct sysfs_dirent *parent_sd,
 	const void *ns, const char *name, struct sysfs_dirent **p_sd)
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index e784340f1599..0f3214a70985 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -563,7 +563,7 @@ int sysfs_add_file_to_group(struct kobject *kobj,
 	int error;
 
 	if (group)
-		dir_sd = sysfs_get_dirent(kobj->sd, NULL, group);
+		dir_sd = sysfs_get_dirent(kobj->sd, group);
 	else
 		dir_sd = sysfs_get(kobj->sd);
 
@@ -645,7 +645,7 @@ void sysfs_remove_file_from_group(struct kobject *kobj,
 	struct sysfs_dirent *dir_sd;
 
 	if (group)
-		dir_sd = sysfs_get_dirent(kobj->sd, NULL, group);
+		dir_sd = sysfs_get_dirent(kobj->sd, group);
 	else
 		dir_sd = sysfs_get(kobj->sd);
 	if (dir_sd) {
diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c
index 25c78f23dae8..21102158ca33 100644
--- a/fs/sysfs/group.c
+++ b/fs/sysfs/group.c
@@ -207,7 +207,7 @@ void sysfs_remove_group(struct kobject *kobj,
 	struct sysfs_dirent *sd;
 
 	if (grp->name) {
-		sd = sysfs_get_dirent(dir_sd, NULL, grp->name);
+		sd = sysfs_get_dirent(dir_sd, grp->name);
 		if (!sd) {
 			WARN(!sd, KERN_WARNING
 			     "sysfs group %p not found for kobject '%s'\n",
@@ -262,7 +262,7 @@ int sysfs_merge_group(struct kobject *kobj,
 	struct attribute *const *attr;
 	int i;
 
-	dir_sd = sysfs_get_dirent(kobj->sd, NULL, grp->name);
+	dir_sd = sysfs_get_dirent(kobj->sd, grp->name);
 	if (!dir_sd)
 		return -ENOENT;
 
@@ -289,7 +289,7 @@ void sysfs_unmerge_group(struct kobject *kobj,
 	struct sysfs_dirent *dir_sd;
 	struct attribute *const *attr;
 
-	dir_sd = sysfs_get_dirent(kobj->sd, NULL, grp->name);
+	dir_sd = sysfs_get_dirent(kobj->sd, grp->name);
 	if (dir_sd) {
 		for (attr = grp->attrs; *attr; ++attr)
 			sysfs_hash_and_remove(dir_sd, NULL, (*attr)->name);
@@ -311,7 +311,7 @@ int sysfs_add_link_to_group(struct kobject *kobj, const char *group_name,
 	struct sysfs_dirent *dir_sd;
 	int error = 0;
 
-	dir_sd = sysfs_get_dirent(kobj->sd, NULL, group_name);
+	dir_sd = sysfs_get_dirent(kobj->sd, group_name);
 	if (!dir_sd)
 		return -ENOENT;
 
@@ -333,7 +333,7 @@ void sysfs_remove_link_from_group(struct kobject *kobj, const char *group_name,
 {
 	struct sysfs_dirent *dir_sd;
 
-	dir_sd = sysfs_get_dirent(kobj->sd, NULL, group_name);
+	dir_sd = sysfs_get_dirent(kobj->sd, group_name);
 	if (dir_sd) {
 		sysfs_hash_and_remove(dir_sd, NULL, link_name);
 		sysfs_put(dir_sd);
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index 7d981ce2e87f..c96b31a16485 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -191,7 +191,7 @@ int sysfs_rename_link_ns(struct kobject *kobj, struct kobject *targ,
 		old_ns = targ->sd->s_ns;
 
 	result = -ENOENT;
-	sd = sysfs_get_dirent(parent_sd, old_ns, old);
+	sd = sysfs_get_dirent_ns(parent_sd, old, old_ns);
 	if (!sd)
 		goto out;
 
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index 7664d1b3d594..6faacafda777 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -164,9 +164,6 @@ void sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt);
 struct sysfs_dirent *sysfs_find_dirent(struct sysfs_dirent *parent_sd,
 				       const void *ns,
 				       const unsigned char *name);
-struct sysfs_dirent *sysfs_get_dirent(struct sysfs_dirent *parent_sd,
-				      const void *ns,
-				      const unsigned char *name);
 struct sysfs_dirent *sysfs_new_dirent(const char *name, umode_t mode, int type);
 
 void release_sysfs_dirent(struct sysfs_dirent *sd);
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index c792f73ac7fa..6695040a0317 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -245,9 +245,9 @@ void sysfs_remove_link_from_group(struct kobject *kobj, const char *group_name,
 
 void sysfs_notify(struct kobject *kobj, const char *dir, const char *attr);
 void sysfs_notify_dirent(struct sysfs_dirent *sd);
-struct sysfs_dirent *sysfs_get_dirent(struct sysfs_dirent *parent_sd,
-				      const void *ns,
-				      const unsigned char *name);
+struct sysfs_dirent *sysfs_get_dirent_ns(struct sysfs_dirent *parent_sd,
+					 const unsigned char *name,
+					 const void *ns);
 struct sysfs_dirent *sysfs_get(struct sysfs_dirent *sd);
 void sysfs_put(struct sysfs_dirent *sd);
 
@@ -422,10 +422,9 @@ static inline void sysfs_notify(struct kobject *kobj, const char *dir,
 static inline void sysfs_notify_dirent(struct sysfs_dirent *sd)
 {
 }
-static inline
-struct sysfs_dirent *sysfs_get_dirent(struct sysfs_dirent *parent_sd,
-				      const void *ns,
-				      const unsigned char *name)
+static inline struct sysfs_dirent *
+sysfs_get_dirent_ns(struct sysfs_dirent *parent_sd, const unsigned char *name,
+		    const void *ns)
 {
 	return NULL;
 }
@@ -462,4 +461,10 @@ static inline int sysfs_rename_link(struct kobject *kobj, struct kobject *target
 	return sysfs_rename_link_ns(kobj, target, old_name, new_name, NULL);
 }
 
+static inline struct sysfs_dirent *
+sysfs_get_dirent(struct sysfs_dirent *parent_sd, const unsigned char *name)
+{
+	return sysfs_get_dirent_ns(parent_sd, name, NULL);
+}
+
 #endif /* _SYSFS_H_ */
-- 
cgit 


From cfec0bc835c84d3d3723d4955587f05a94879b26 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 11 Sep 2013 22:29:09 -0400
Subject: sysfs: @name comes before @ns

Some internal sysfs functions which take explicit namespace argument
are weird in that they place the optional @ns in front of @name which
is contrary to the established convention.  This is confusing and
error-prone especially as @ns and @name may be interchanged without
causing compilation warning.

Swap the positions of @name and @ns in the following internal
functions.

 sysfs_find_dirent()
 sysfs_rename()
 sysfs_hash_and_remove()
 sysfs_name_hash()
 sysfs_name_compare()
 create_dir()

This patch doesn't introduce any functional changes.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/bin.c     |  2 +-
 fs/sysfs/dir.c     | 45 +++++++++++++++++++++++----------------------
 fs/sysfs/file.c    | 10 +++++-----
 fs/sysfs/group.c   | 12 ++++++------
 fs/sysfs/inode.c   |  6 +++---
 fs/sysfs/symlink.c |  6 +++---
 fs/sysfs/sysfs.h   | 10 +++++-----
 7 files changed, 46 insertions(+), 45 deletions(-)

diff --git a/fs/sysfs/bin.c b/fs/sysfs/bin.c
index c590cabd57bb..d49e6ca3345b 100644
--- a/fs/sysfs/bin.c
+++ b/fs/sysfs/bin.c
@@ -497,6 +497,6 @@ EXPORT_SYMBOL_GPL(sysfs_create_bin_file);
 void sysfs_remove_bin_file(struct kobject *kobj,
 			   const struct bin_attribute *attr)
 {
-	sysfs_hash_and_remove(kobj->sd, NULL, attr->attr.name);
+	sysfs_hash_and_remove(kobj->sd, attr->attr.name, NULL);
 }
 EXPORT_SYMBOL_GPL(sysfs_remove_bin_file);
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index fee19d16e4a2..d23e66dfba74 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -35,12 +35,12 @@ static DEFINE_IDA(sysfs_ino_ida);
 
 /**
  *	sysfs_name_hash
- *	@ns:   Namespace tag to hash
  *	@name: Null terminated string to hash
+ *	@ns:   Namespace tag to hash
  *
  *	Returns 31 bit hash of ns + name (so it fits in an off_t )
  */
-static unsigned int sysfs_name_hash(const void *ns, const char *name)
+static unsigned int sysfs_name_hash(const char *name, const void *ns)
 {
 	unsigned long hash = init_name_hash();
 	unsigned int len = strlen(name);
@@ -56,8 +56,8 @@ static unsigned int sysfs_name_hash(const void *ns, const char *name)
 	return hash;
 }
 
-static int sysfs_name_compare(unsigned int hash, const void *ns,
-	const char *name, const struct sysfs_dirent *sd)
+static int sysfs_name_compare(unsigned int hash, const char *name,
+			      const void *ns, const struct sysfs_dirent *sd)
 {
 	if (hash != sd->s_hash)
 		return hash - sd->s_hash;
@@ -69,7 +69,7 @@ static int sysfs_name_compare(unsigned int hash, const void *ns,
 static int sysfs_sd_compare(const struct sysfs_dirent *left,
 			    const struct sysfs_dirent *right)
 {
-	return sysfs_name_compare(left->s_hash, left->s_ns, left->s_name,
+	return sysfs_name_compare(left->s_hash, left->s_name, left->s_ns,
 				  right);
 }
 
@@ -451,7 +451,7 @@ int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd)
 	struct sysfs_inode_attrs *ps_iattr;
 	int ret;
 
-	sd->s_hash = sysfs_name_hash(sd->s_ns, sd->s_name);
+	sd->s_hash = sysfs_name_hash(sd->s_name, sd->s_ns);
 	sd->s_parent = sysfs_get(acxt->parent_sd);
 
 	ret = sysfs_link_sibling(sd);
@@ -596,6 +596,7 @@ void sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt)
  *	sysfs_find_dirent - find sysfs_dirent with the given name
  *	@parent_sd: sysfs_dirent to search under
  *	@name: name to look for
+ *	@ns: the namespace tag to use
  *
  *	Look for sysfs_dirent with name @name under @parent_sd.
  *
@@ -606,19 +607,19 @@ void sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt)
  *	Pointer to sysfs_dirent if found, NULL if not.
  */
 struct sysfs_dirent *sysfs_find_dirent(struct sysfs_dirent *parent_sd,
-				       const void *ns,
-				       const unsigned char *name)
+				       const unsigned char *name,
+				       const void *ns)
 {
 	struct rb_node *node = parent_sd->s_dir.children.rb_node;
 	unsigned int hash;
 
-	hash = sysfs_name_hash(ns, name);
+	hash = sysfs_name_hash(name, ns);
 	while (node) {
 		struct sysfs_dirent *sd;
 		int result;
 
 		sd = to_sysfs_dirent(node);
-		result = sysfs_name_compare(hash, ns, name, sd);
+		result = sysfs_name_compare(hash, name, ns, sd);
 		if (result < 0)
 			node = node->rb_left;
 		else if (result > 0)
@@ -651,7 +652,7 @@ struct sysfs_dirent *sysfs_get_dirent_ns(struct sysfs_dirent *parent_sd,
 	struct sysfs_dirent *sd;
 
 	mutex_lock(&sysfs_mutex);
-	sd = sysfs_find_dirent(parent_sd, ns, name);
+	sd = sysfs_find_dirent(parent_sd, name, ns);
 	sysfs_get(sd);
 	mutex_unlock(&sysfs_mutex);
 
@@ -660,7 +661,8 @@ struct sysfs_dirent *sysfs_get_dirent_ns(struct sysfs_dirent *parent_sd,
 EXPORT_SYMBOL_GPL(sysfs_get_dirent_ns);
 
 static int create_dir(struct kobject *kobj, struct sysfs_dirent *parent_sd,
-	const void *ns, const char *name, struct sysfs_dirent **p_sd)
+		      const char *name, const void *ns,
+		      struct sysfs_dirent **p_sd)
 {
 	umode_t mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO;
 	struct sysfs_addrm_cxt acxt;
@@ -691,7 +693,7 @@ static int create_dir(struct kobject *kobj, struct sysfs_dirent *parent_sd,
 int sysfs_create_subdir(struct kobject *kobj, const char *name,
 			struct sysfs_dirent **p_sd)
 {
-	return create_dir(kobj, kobj->sd, NULL, name, p_sd);
+	return create_dir(kobj, kobj->sd, name, NULL, p_sd);
 }
 
 /**
@@ -714,7 +716,7 @@ int sysfs_create_dir_ns(struct kobject *kobj, const void *ns)
 	if (!parent_sd)
 		return -ENOENT;
 
-	error = create_dir(kobj, parent_sd, ns, kobject_name(kobj), &sd);
+	error = create_dir(kobj, parent_sd, kobject_name(kobj), ns, &sd);
 	if (!error)
 		kobj->sd = sd;
 	return error;
@@ -735,7 +737,7 @@ static struct dentry *sysfs_lookup(struct inode *dir, struct dentry *dentry,
 	if (parent_sd->s_flags & SYSFS_FLAG_HAS_NS)
 		ns = sysfs_info(dir->i_sb)->ns;
 
-	sd = sysfs_find_dirent(parent_sd, ns, dentry->d_name.name);
+	sd = sysfs_find_dirent(parent_sd, dentry->d_name.name, ns);
 
 	/* no such entry */
 	if (!sd) {
@@ -823,9 +825,8 @@ void sysfs_remove_dir(struct kobject *kobj)
 	__sysfs_remove_dir(sd);
 }
 
-int sysfs_rename(struct sysfs_dirent *sd,
-	struct sysfs_dirent *new_parent_sd, const void *new_ns,
-	const char *new_name)
+int sysfs_rename(struct sysfs_dirent *sd, struct sysfs_dirent *new_parent_sd,
+		 const char *new_name, const void *new_ns)
 {
 	int error;
 
@@ -837,7 +838,7 @@ int sysfs_rename(struct sysfs_dirent *sd,
 		goto out;	/* nothing to rename */
 
 	error = -EEXIST;
-	if (sysfs_find_dirent(new_parent_sd, new_ns, new_name))
+	if (sysfs_find_dirent(new_parent_sd, new_name, new_ns))
 		goto out;
 
 	/* rename sysfs_dirent */
@@ -858,7 +859,7 @@ int sysfs_rename(struct sysfs_dirent *sd,
 	sysfs_get(new_parent_sd);
 	sysfs_put(sd->s_parent);
 	sd->s_ns = new_ns;
-	sd->s_hash = sysfs_name_hash(sd->s_ns, sd->s_name);
+	sd->s_hash = sysfs_name_hash(sd->s_name, sd->s_ns);
 	sd->s_parent = new_parent_sd;
 	sysfs_link_sibling(sd);
 
@@ -873,7 +874,7 @@ int sysfs_rename_dir_ns(struct kobject *kobj, const char *new_name,
 {
 	struct sysfs_dirent *parent_sd = kobj->sd->s_parent;
 
-	return sysfs_rename(kobj->sd, parent_sd, new_ns, new_name);
+	return sysfs_rename(kobj->sd, parent_sd, new_name, new_ns);
 }
 
 int sysfs_move_dir_ns(struct kobject *kobj, struct kobject *new_parent_kobj,
@@ -886,7 +887,7 @@ int sysfs_move_dir_ns(struct kobject *kobj, struct kobject *new_parent_kobj,
 	new_parent_sd = new_parent_kobj && new_parent_kobj->sd ?
 		new_parent_kobj->sd : &sysfs_root;
 
-	return sysfs_rename(sd, new_parent_sd, new_ns, sd->s_name);
+	return sysfs_rename(sd, new_parent_sd, sd->s_name, new_ns);
 }
 
 /* Relationship between s_mode and the DT_xxx types */
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 0f3214a70985..4697019fafa3 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -466,9 +466,9 @@ void sysfs_notify(struct kobject *k, const char *dir, const char *attr)
 	mutex_lock(&sysfs_mutex);
 
 	if (sd && dir)
-		sd = sysfs_find_dirent(sd, NULL, dir);
+		sd = sysfs_find_dirent(sd, dir, NULL);
 	if (sd && attr)
-		sd = sysfs_find_dirent(sd, NULL, attr);
+		sd = sysfs_find_dirent(sd, attr, NULL);
 	if (sd)
 		sysfs_notify_dirent(sd);
 
@@ -594,7 +594,7 @@ int sysfs_chmod_file(struct kobject *kobj, const struct attribute *attr,
 	mutex_lock(&sysfs_mutex);
 
 	rc = -ENOENT;
-	sd = sysfs_find_dirent(kobj->sd, NULL, attr->name);
+	sd = sysfs_find_dirent(kobj->sd, attr->name, NULL);
 	if (!sd)
 		goto out;
 
@@ -621,7 +621,7 @@ void sysfs_remove_file_ns(struct kobject *kobj, const struct attribute *attr,
 {
 	struct sysfs_dirent *dir_sd = kobj->sd;
 
-	sysfs_hash_and_remove(dir_sd, ns, attr->name);
+	sysfs_hash_and_remove(dir_sd, attr->name, ns);
 }
 EXPORT_SYMBOL_GPL(sysfs_remove_file_ns);
 
@@ -649,7 +649,7 @@ void sysfs_remove_file_from_group(struct kobject *kobj,
 	else
 		dir_sd = sysfs_get(kobj->sd);
 	if (dir_sd) {
-		sysfs_hash_and_remove(dir_sd, NULL, attr->name);
+		sysfs_hash_and_remove(dir_sd, attr->name, NULL);
 		sysfs_put(dir_sd);
 	}
 }
diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c
index 21102158ca33..2dae55c4f7dc 100644
--- a/fs/sysfs/group.c
+++ b/fs/sysfs/group.c
@@ -26,7 +26,7 @@ static void remove_files(struct sysfs_dirent *dir_sd, struct kobject *kobj,
 
 	if (grp->attrs)
 		for (attr = grp->attrs; *attr; attr++)
-			sysfs_hash_and_remove(dir_sd, NULL, (*attr)->name);
+			sysfs_hash_and_remove(dir_sd, (*attr)->name, NULL);
 	if (grp->bin_attrs)
 		for (bin_attr = grp->bin_attrs; *bin_attr; bin_attr++)
 			sysfs_remove_bin_file(kobj, *bin_attr);
@@ -49,8 +49,8 @@ static int create_files(struct sysfs_dirent *dir_sd, struct kobject *kobj,
 			 * re-adding (if required) the file.
 			 */
 			if (update)
-				sysfs_hash_and_remove(dir_sd, NULL,
-						      (*attr)->name);
+				sysfs_hash_and_remove(dir_sd, (*attr)->name,
+						      NULL);
 			if (grp->is_visible) {
 				mode = grp->is_visible(kobj, *attr, i);
 				if (!mode)
@@ -270,7 +270,7 @@ int sysfs_merge_group(struct kobject *kobj,
 		error = sysfs_add_file(dir_sd, *attr, SYSFS_KOBJ_ATTR);
 	if (error) {
 		while (--i >= 0)
-			sysfs_hash_and_remove(dir_sd, NULL, (*--attr)->name);
+			sysfs_hash_and_remove(dir_sd, (*--attr)->name, NULL);
 	}
 	sysfs_put(dir_sd);
 
@@ -292,7 +292,7 @@ void sysfs_unmerge_group(struct kobject *kobj,
 	dir_sd = sysfs_get_dirent(kobj->sd, grp->name);
 	if (dir_sd) {
 		for (attr = grp->attrs; *attr; ++attr)
-			sysfs_hash_and_remove(dir_sd, NULL, (*attr)->name);
+			sysfs_hash_and_remove(dir_sd, (*attr)->name, NULL);
 		sysfs_put(dir_sd);
 	}
 }
@@ -335,7 +335,7 @@ void sysfs_remove_link_from_group(struct kobject *kobj, const char *group_name,
 
 	dir_sd = sysfs_get_dirent(kobj->sd, group_name);
 	if (dir_sd) {
-		sysfs_hash_and_remove(dir_sd, NULL, link_name);
+		sysfs_hash_and_remove(dir_sd, link_name, NULL);
 		sysfs_put(dir_sd);
 	}
 }
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index 963f910c8034..07193d720d92 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -314,8 +314,8 @@ void sysfs_evict_inode(struct inode *inode)
 	sysfs_put(sd);
 }
 
-int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const void *ns,
-			  const char *name)
+int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const char *name,
+			  const void *ns)
 {
 	struct sysfs_addrm_cxt acxt;
 	struct sysfs_dirent *sd;
@@ -328,7 +328,7 @@ int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const void *ns,
 
 	sysfs_addrm_start(&acxt, dir_sd);
 
-	sd = sysfs_find_dirent(dir_sd, ns, name);
+	sd = sysfs_find_dirent(dir_sd, name, ns);
 	if (sd)
 		sysfs_remove_one(&acxt, sd);
 
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index c96b31a16485..88c8bc5e8911 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -144,7 +144,7 @@ void sysfs_delete_link(struct kobject *kobj, struct kobject *targ,
 	if (targ->sd)
 		ns = targ->sd->s_ns;
 	spin_unlock(&sysfs_assoc_lock);
-	sysfs_hash_and_remove(kobj->sd, ns, name);
+	sysfs_hash_and_remove(kobj->sd, name, ns);
 }
 
 /**
@@ -161,7 +161,7 @@ void sysfs_remove_link(struct kobject *kobj, const char *name)
 	else
 		parent_sd = kobj->sd;
 
-	sysfs_hash_and_remove(parent_sd, NULL, name);
+	sysfs_hash_and_remove(parent_sd, name, NULL);
 }
 EXPORT_SYMBOL_GPL(sysfs_remove_link);
 
@@ -201,7 +201,7 @@ int sysfs_rename_link_ns(struct kobject *kobj, struct kobject *targ,
 	if (sd->s_symlink.target_sd->s_dir.kobj != targ)
 		goto out;
 
-	result = sysfs_rename(sd, parent_sd, new_ns, new);
+	result = sysfs_rename(sd, parent_sd, new, new_ns);
 
 out:
 	sysfs_put(sd);
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index 6faacafda777..ee44fde199d0 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -162,8 +162,8 @@ void sysfs_remove_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd);
 void sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt);
 
 struct sysfs_dirent *sysfs_find_dirent(struct sysfs_dirent *parent_sd,
-				       const void *ns,
-				       const unsigned char *name);
+				       const unsigned char *name,
+				       const void *ns);
 struct sysfs_dirent *sysfs_new_dirent(const char *name, umode_t mode, int type);
 
 void release_sysfs_dirent(struct sysfs_dirent *sd);
@@ -173,7 +173,7 @@ int sysfs_create_subdir(struct kobject *kobj, const char *name,
 void sysfs_remove_subdir(struct sysfs_dirent *sd);
 
 int sysfs_rename(struct sysfs_dirent *sd, struct sysfs_dirent *new_parent_sd,
-		 const void *ns, const char *new_name);
+		 const char *new_name, const void *new_ns);
 
 static inline struct sysfs_dirent *__sysfs_get(struct sysfs_dirent *sd)
 {
@@ -204,8 +204,8 @@ int sysfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
 		  struct kstat *stat);
 int sysfs_setxattr(struct dentry *dentry, const char *name, const void *value,
 		   size_t size, int flags);
-int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const void *ns,
-			  const char *name);
+int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const char *name,
+			  const void *ns);
 int sysfs_inode_init(void);
 
 /*
-- 
cgit 


From 3e358ac2bb5bb9c9f4842145ca0da2384d13fd98 Mon Sep 17 00:00:00 2001
From: Neil Horman <nhorman@tuxdriver.com>
Date: Fri, 6 Sep 2013 15:36:08 -0400
Subject: firmware: Be a bit more verbose about direct firmware loading failure

The direct firmware loading interface is a bit quiet about failures.  Failures
that occur during loading are masked if firmware exists in multiple locations,
and may be masked entirely in the event that we fall back to the user mode
helper code.  It would be nice to see some of the more unexpected errors get
logged, so in the event that you expect the direct firmware loader to work (like
if CONFIG_FW_LOADER_USER_HELPER is enabled), and something goes wrong, you can
figure out what happened.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/base/firmware_class.c | 38 +++++++++++++++++++++++++-------------
 1 file changed, 25 insertions(+), 13 deletions(-)

diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index 10a4467c63f1..eb8fb94ae2c5 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -282,31 +282,35 @@ static noinline_for_stack long fw_file_size(struct file *file)
 	return st.size;
 }
 
-static bool fw_read_file_contents(struct file *file, struct firmware_buf *fw_buf)
+static int fw_read_file_contents(struct file *file, struct firmware_buf *fw_buf)
 {
 	long size;
 	char *buf;
+	int rc;
 
 	size = fw_file_size(file);
 	if (size <= 0)
-		return false;
+		return -EINVAL;
 	buf = vmalloc(size);
 	if (!buf)
-		return false;
-	if (kernel_read(file, 0, buf, size) != size) {
+		return -ENOMEM;
+	rc = kernel_read(file, 0, buf, size);
+	if (rc != size) {
+		if (rc > 0)
+			rc = -EIO;
 		vfree(buf);
-		return false;
+		return rc;
 	}
 	fw_buf->data = buf;
 	fw_buf->size = size;
-	return true;
+	return 0;
 }
 
-static bool fw_get_filesystem_firmware(struct device *device,
+static int fw_get_filesystem_firmware(struct device *device,
 				       struct firmware_buf *buf)
 {
 	int i;
-	bool success = false;
+	int rc = -ENOENT;
 	char *path = __getname();
 
 	for (i = 0; i < ARRAY_SIZE(fw_path); i++) {
@@ -321,14 +325,17 @@ static bool fw_get_filesystem_firmware(struct device *device,
 		file = filp_open(path, O_RDONLY, 0);
 		if (IS_ERR(file))
 			continue;
-		success = fw_read_file_contents(file, buf);
+		rc = fw_read_file_contents(file, buf);
 		fput(file);
-		if (success)
+		if (rc)
+			dev_warn(device, "firmware, attempted to load %s, but failed with error %d\n",
+				path, rc);
+		else
 			break;
 	}
 	__putname(path);
 
-	if (success) {
+	if (!rc) {
 		dev_dbg(device, "firmware: direct-loading firmware %s\n",
 			buf->fw_id);
 		mutex_lock(&fw_lock);
@@ -337,7 +344,7 @@ static bool fw_get_filesystem_firmware(struct device *device,
 		mutex_unlock(&fw_lock);
 	}
 
-	return success;
+	return rc;
 }
 
 /* firmware holds the ownership of pages */
@@ -1086,9 +1093,14 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
 		}
 	}
 
-	if (!fw_get_filesystem_firmware(device, fw->priv))
+	ret = fw_get_filesystem_firmware(device, fw->priv);
+	if (ret) {
+		dev_warn(device, "Direct firmware load failed with error %d\n",
+			 ret);
+		dev_warn(device, "Falling back to user helper\n");
 		ret = fw_load_from_user_helper(fw, name, device,
 					       uevent, nowait, timeout);
+	}
 
 	/* don't cache firmware handled without uevent */
 	if (!ret)
-- 
cgit 


From 2d1e5a48965be57eefce033894d9795672f6ab63 Mon Sep 17 00:00:00 2001
From: José Miguel Gonçalves <jose.goncalves@inov.pt>
Date: Wed, 18 Sep 2013 16:52:49 +0100
Subject: serial: samsung: add support for manual RTS setting
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The Samsung serial driver currently does not support setting the
RTS pin with an ioctl(TIOCMSET) call. This patch adds this support.

Changes in v2:
 - Preserve the RTS pin's manual setting  in set_termios() also when
   enabling CRTSCTS.

Signed-off-by: José Miguel Gonçalves <jose.goncalves@inov.pt>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/samsung.c | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index 81f3dbabaaed..c1af04d46682 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -407,7 +407,14 @@ static unsigned int s3c24xx_serial_get_mctrl(struct uart_port *port)
 
 static void s3c24xx_serial_set_mctrl(struct uart_port *port, unsigned int mctrl)
 {
-	/* todo - possibly remove AFC and do manual CTS */
+	unsigned int umcon = rd_regl(port, S3C2410_UMCON);
+
+	if (mctrl & TIOCM_RTS)
+		umcon |= S3C2410_UMCOM_RTS_LOW;
+	else
+		umcon &= ~S3C2410_UMCOM_RTS_LOW;
+
+	wr_regl(port, S3C2410_UMCON, umcon);
 }
 
 static void s3c24xx_serial_break_ctl(struct uart_port *port, int break_state)
@@ -774,8 +781,6 @@ static void s3c24xx_serial_set_termios(struct uart_port *port,
 	if (termios->c_cflag & CSTOPB)
 		ulcon |= S3C2410_LCON_STOPB;
 
-	umcon = (termios->c_cflag & CRTSCTS) ? S3C2410_UMCOM_AFC : 0;
-
 	if (termios->c_cflag & PARENB) {
 		if (termios->c_cflag & PARODD)
 			ulcon |= S3C2410_LCON_PODD;
@@ -792,6 +797,15 @@ static void s3c24xx_serial_set_termios(struct uart_port *port,
 
 	wr_regl(port, S3C2410_ULCON, ulcon);
 	wr_regl(port, S3C2410_UBRDIV, quot);
+
+	umcon = rd_regl(port, S3C2410_UMCON);
+	if (termios->c_cflag & CRTSCTS) {
+		umcon |= S3C2410_UMCOM_AFC;
+		/* Disable RTS when RX FIFO contains 63 bytes */
+		umcon &= ~S3C2412_UMCON_AFC_8;
+	} else {
+		umcon &= ~S3C2410_UMCOM_AFC;
+	}
 	wr_regl(port, S3C2410_UMCON, umcon);
 
 	if (ourport->info->has_divslot)
-- 
cgit 


From a50c44ce2463c427552bd0dab635d4980ed84131 Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Wed, 11 Sep 2013 21:27:53 -0700
Subject: serial: imx: Change cast to handle 64-bit resource_size_t

This resolves a warning where resource_size_t is larger than void *:

  drivers/tty/serial/imx.c:1542:6: warning: cast to pointer from integer
  	of different size [-Wint-to-pointer-cast]

Since iomem_base is a void *, casting to unsigned long is safe.

It's unclear to me that this comparison is truly needed, but it's there
on several other drivers as well.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/imx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 65d9b2f4882b..c07d9bb39695 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1539,7 +1539,7 @@ imx_verify_port(struct uart_port *port, struct serial_struct *ser)
 		ret = -EINVAL;
 	if (sport->port.uartclk / 16 != ser->baud_base)
 		ret = -EINVAL;
-	if ((void *)sport->port.mapbase != ser->iomem_base)
+	if (sport->port.mapbase != (unsigned long)ser->iomem_base)
 		ret = -EINVAL;
 	if (sport->port.iobase != ser->port)
 		ret = -EINVAL;
-- 
cgit 


From f8bf876209a9828a456a9ac09ef6369a007dda2d Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:31:06 +0900
Subject: serial: mfd: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/mfd.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/tty/serial/mfd.c b/drivers/tty/serial/mfd.c
index a187cd4b1e53..503dcc77b2bd 100644
--- a/drivers/tty/serial/mfd.c
+++ b/drivers/tty/serial/mfd.c
@@ -1451,7 +1451,6 @@ static void serial_hsu_remove(struct pci_dev *pdev)
 		uart_remove_one_port(&serial_hsu_reg, &up->port);
 	}
 
-	pci_set_drvdata(pdev, NULL);
 	free_irq(pdev->irq, priv);
 	pci_disable_device(pdev);
 }
-- 
cgit 


From b9465f4dcf0c261cdd68263ccade8dfc75ed51f9 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:35:01 +0900
Subject: serial: txx9: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/serial_txx9.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/tty/serial/serial_txx9.c b/drivers/tty/serial/serial_txx9.c
index 440a962412da..90a080b1f9ee 100644
--- a/drivers/tty/serial/serial_txx9.c
+++ b/drivers/tty/serial/serial_txx9.c
@@ -1220,8 +1220,6 @@ static void pciserial_txx9_remove_one(struct pci_dev *dev)
 {
 	struct uart_txx9_port *up = pci_get_drvdata(dev);
 
-	pci_set_drvdata(dev, NULL);
-
 	if (up) {
 		serial_txx9_unregister_port(up->port.line);
 		pci_disable_device(dev);
-- 
cgit 


From 66be084885979bf8718383846a156c9da56c5a5c Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:33:48 +0900
Subject: serial: 8250_pci: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/8250_pci.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index c810da7c7a88..515fd0ff4e4e 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -3520,8 +3520,6 @@ static void pciserial_remove_one(struct pci_dev *dev)
 {
 	struct serial_private *priv = pci_get_drvdata(dev);
 
-	pci_set_drvdata(dev, NULL);
-
 	pciserial_remove_ports(priv);
 
 	pci_disable_device(dev);
-- 
cgit 


From 59f8a62c25b9c2a53e7c359ba9ca611639a4c0b0 Mon Sep 17 00:00:00 2001
From: Qipan Li <Qipan.Li@csr.com>
Date: Sat, 21 Sep 2013 09:02:10 +0800
Subject: serial: sirf: don't submit dma desc after timeout irqs occur

In rx timeout ISR and tasklet, we don't issue new dma desc as rx_done ISR
will do that.

Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/sirfsoc_uart.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/sirfsoc_uart.c b/drivers/tty/serial/sirfsoc_uart.c
index 61c1ad03db5b..f186a8fb8887 100644
--- a/drivers/tty/serial/sirfsoc_uart.c
+++ b/drivers/tty/serial/sirfsoc_uart.c
@@ -529,7 +529,7 @@ static void sirfsoc_rx_tmo_process_tl(unsigned long param)
 	while (sirfport->rx_completed != sirfport->rx_issued) {
 		sirfsoc_uart_insert_rx_buf_to_tty(sirfport,
 					SIRFSOC_RX_DMA_BUF_SIZE);
-		sirfsoc_rx_submit_one_dma_desc(port, sirfport->rx_completed++);
+		sirfport->rx_completed++;
 		sirfport->rx_completed %= SIRFSOC_RX_LOOP_BUF_CNT;
 	}
 	count = CIRC_CNT(sirfport->rx_dma_items[sirfport->rx_issued].xmit.head,
@@ -706,12 +706,19 @@ static void sirfsoc_uart_rx_dma_complete_tl(unsigned long param)
 {
 	struct sirfsoc_uart_port *sirfport = (struct sirfsoc_uart_port *)param;
 	struct uart_port *port = &sirfport->port;
+	struct sirfsoc_register *ureg = &sirfport->uart_reg->uart_reg;
+	struct sirfsoc_int_en *uint_en = &sirfport->uart_reg->uart_int_en;
 	unsigned long flags;
 	spin_lock_irqsave(&sirfport->rx_lock, flags);
 	while (sirfport->rx_completed != sirfport->rx_issued) {
 		sirfsoc_uart_insert_rx_buf_to_tty(sirfport,
 					SIRFSOC_RX_DMA_BUF_SIZE);
-		sirfsoc_rx_submit_one_dma_desc(port, sirfport->rx_completed++);
+		if (rd_regl(port, ureg->sirfsoc_int_en_reg) &
+				uint_en->sirfsoc_rx_timeout_en)
+			sirfsoc_rx_submit_one_dma_desc(port,
+					sirfport->rx_completed++);
+		else
+			sirfport->rx_completed++;
 		sirfport->rx_completed %= SIRFSOC_RX_LOOP_BUF_CNT;
 	}
 	spin_unlock_irqrestore(&sirfport->rx_lock, flags);
-- 
cgit 


From 4250b5d9a47e8281b964935d5fee6a32d4ccdedb Mon Sep 17 00:00:00 2001
From: Alexey Pelykh <alexey.pelykh@gmail.com>
Date: Sat, 21 Sep 2013 04:04:35 -0400
Subject: OMAP/serial: Fix misnamed variable

Fix misnamed variable to eliminate confusion.

Signed-off-by: Alexey Pelykh <alexey.pelykh@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/omap-serial.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 816d1a23f9d0..7e7da4066856 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -258,13 +258,13 @@ serial_omap_baud_is_mode16(struct uart_port *port, unsigned int baud)
 static unsigned int
 serial_omap_get_divisor(struct uart_port *port, unsigned int baud)
 {
-	unsigned int divisor;
+	unsigned int mode;
 
 	if (!serial_omap_baud_is_mode16(port, baud))
-		divisor = 13;
+		mode = 13;
 	else
-		divisor = 16;
-	return port->uartclk/(baud * divisor);
+		mode = 16;
+	return port->uartclk/(mode * baud);
 }
 
 static void serial_omap_enable_ms(struct uart_port *port)
-- 
cgit 


From 18d8519d35cb0b794d9b9c6f4ff7b97940a95bda Mon Sep 17 00:00:00 2001
From: Alexey Pelykh <alexey.pelykh@gmail.com>
Date: Sat, 21 Sep 2013 04:10:54 -0400
Subject: OMAP/serial: Fix Mode13 vs Mode16 priority

Make Mode16 more preferred than Mode13, to match TRM baudrates table.

Signed-off-by: Alexey Pelykh <alexey.pelykh@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/omap-serial.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 7e7da4066856..7b00520624f9 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -247,7 +247,7 @@ serial_omap_baud_is_mode16(struct uart_port *port, unsigned int baud)
 	if(baudAbsDiff16 < 0)
 		baudAbsDiff16 = -baudAbsDiff16;
 
-	return (baudAbsDiff13 > baudAbsDiff16);
+	return (baudAbsDiff13 >= baudAbsDiff16);
 }
 
 /*
-- 
cgit 


From 7a95b815da307d66430f30d7b18dcddce62507bd Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 23 Sep 2013 21:54:20 +0800
Subject: serial: sccnxp: missing uart_unregister_driver() on error in
 sccnxp_probe()

Add the missing uart_unregister_driver() before return
from sccnxp_probe() in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/sccnxp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/tty/serial/sccnxp.c b/drivers/tty/serial/sccnxp.c
index 49e9bbfe6cab..a447f71538ef 100644
--- a/drivers/tty/serial/sccnxp.c
+++ b/drivers/tty/serial/sccnxp.c
@@ -986,6 +986,7 @@ static int sccnxp_probe(struct platform_device *pdev)
 		return 0;
 	}
 
+	uart_unregister_driver(&s->uart);
 err_out:
 	if (!IS_ERR(s->regulator))
 		return regulator_disable(s->regulator);
-- 
cgit 


From 216fce2e78acd6558b6c16b28295ed7a639dd2c9 Mon Sep 17 00:00:00 2001
From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Mon, 23 Sep 2013 17:53:32 +0200
Subject: serial: clps711x: drop needless devm_clk_put
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The nice thing about devm_* is that the driver doesn't need to free the
resources but the driver core takes care about that.

These calls were introduced in commit c08f015 (serial: clps711x: Using
CPU clock subsystem for getting base UART speed).

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Cc: Alexander Shiyan <shc_work@mail.ru>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/clps711x.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/tty/serial/clps711x.c b/drivers/tty/serial/clps711x.c
index 7e4e4088471c..8d0b994357c8 100644
--- a/drivers/tty/serial/clps711x.c
+++ b/drivers/tty/serial/clps711x.c
@@ -459,7 +459,6 @@ static int uart_clps711x_probe(struct platform_device *pdev)
 	ret = uart_register_driver(&s->uart);
 	if (ret) {
 		dev_err(&pdev->dev, "Registering UART driver failed\n");
-		devm_clk_put(&pdev->dev, s->uart_clk);
 		return ret;
 	}
 
@@ -487,7 +486,6 @@ static int uart_clps711x_remove(struct platform_device *pdev)
 	for (i = 0; i < UART_CLPS711X_NR; i++)
 		uart_remove_one_port(&s->uart, &s->port[i]);
 
-	devm_clk_put(&pdev->dev, s->uart_clk);
 	uart_unregister_driver(&s->uart);
 
 	return 0;
-- 
cgit 


From ed1d2da28ea17e6f5e06111aac957d9847faff17 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 23 Aug 2013 14:24:29 -0700
Subject: rapidio: convert bus code to use bus_groups

The bus_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the rapidio bus code to use the
correct field.

Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Alexandre Bounine <alexandre.bounine@idt.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/rapidio/rio-driver.c |  2 +-
 drivers/rapidio/rio-sysfs.c  | 16 +++++++++++++---
 drivers/rapidio/rio.h        |  2 +-
 3 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/drivers/rapidio/rio-driver.c b/drivers/rapidio/rio-driver.c
index 3e9b6a78ad18..2be2d24dbecb 100644
--- a/drivers/rapidio/rio-driver.c
+++ b/drivers/rapidio/rio-driver.c
@@ -224,7 +224,7 @@ struct bus_type rio_bus_type = {
 	.name = "rapidio",
 	.match = rio_match_bus,
 	.dev_attrs = rio_dev_attrs,
-	.bus_attrs = rio_bus_attrs,
+	.bus_groups = rio_bus_groups,
 	.probe = rio_device_probe,
 	.remove = rio_device_remove,
 	.uevent	= rio_uevent,
diff --git a/drivers/rapidio/rio-sysfs.c b/drivers/rapidio/rio-sysfs.c
index 9331be646dc3..795a4776cb0c 100644
--- a/drivers/rapidio/rio-sysfs.c
+++ b/drivers/rapidio/rio-sysfs.c
@@ -316,8 +316,18 @@ exit:
 
 	return rc;
 }
+static BUS_ATTR(scan, (S_IWUSR|S_IWGRP), NULL, bus_scan_store);
 
-struct bus_attribute rio_bus_attrs[] = {
-	__ATTR(scan, (S_IWUSR|S_IWGRP), NULL, bus_scan_store),
-	__ATTR_NULL
+static struct attribute *rio_bus_attrs[] = {
+	&bus_attr_scan.attr,
+	NULL,
+};
+
+static const struct attribute_group rio_bus_group = {
+	.attrs = rio_bus_attrs,
+};
+
+const struct attribute_group *rio_bus_groups[] = {
+	&rio_bus_group,
+	NULL,
 };
diff --git a/drivers/rapidio/rio.h b/drivers/rapidio/rio.h
index 085215cd8502..57d2ad06a816 100644
--- a/drivers/rapidio/rio.h
+++ b/drivers/rapidio/rio.h
@@ -49,7 +49,7 @@ extern int rio_mport_scan(int mport_id);
 
 /* Structures internal to the RIO core code */
 extern struct device_attribute rio_dev_attrs[];
-extern struct bus_attribute rio_bus_attrs[];
+extern const struct attribute_group *rio_bus_groups[];
 
 #define RIO_GET_DID(size, x)	(size ? (x & 0xffff) : ((x & 0x00ff0000) >> 16))
 #define RIO_SET_DID(size, x)	(size ? (x & 0xffff) : ((x & 0x000000ff) << 16))
-- 
cgit 


From 3abd136218984d86cfb3b25817a313a5555dd2e8 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 23 Aug 2013 14:24:30 -0700
Subject: PPC: ibmebus: convert bus code to use bus_groups

The bus_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the ibmebus bus code to use the
correct field.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/kernel/ibmebus.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/kernel/ibmebus.c b/arch/powerpc/kernel/ibmebus.c
index 16a7c2326d48..1114d13ac19f 100644
--- a/arch/powerpc/kernel/ibmebus.c
+++ b/arch/powerpc/kernel/ibmebus.c
@@ -292,6 +292,7 @@ out:
 		return rc;
 	return count;
 }
+static BUS_ATTR(probe, S_IWUSR, NULL, ibmebus_store_probe);
 
 static ssize_t ibmebus_store_remove(struct bus_type *bus,
 				    const char *buf, size_t count)
@@ -317,13 +318,14 @@ static ssize_t ibmebus_store_remove(struct bus_type *bus,
 		return -ENODEV;
 	}
 }
+static BUS_ATTR(remove, S_IWUSR, NULL, ibmebus_store_remove);
 
-
-static struct bus_attribute ibmebus_bus_attrs[] = {
-	__ATTR(probe, S_IWUSR, NULL, ibmebus_store_probe),
-	__ATTR(remove, S_IWUSR, NULL, ibmebus_store_remove),
-	__ATTR_NULL
+static struct attribute *ibmbus_bus_attrs[] = {
+	&bus_attr_probe.attr,
+	&bus_attr_remove.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(ibmbus_bus);
 
 static int ibmebus_bus_bus_match(struct device *dev, struct device_driver *drv)
 {
@@ -713,7 +715,7 @@ static struct dev_pm_ops ibmebus_bus_dev_pm_ops = {
 struct bus_type ibmebus_bus_type = {
 	.name      = "ibmebus",
 	.uevent    = of_device_uevent_modalias,
-	.bus_attrs = ibmebus_bus_attrs,
+	.bus_groups = ibmbus_bus_groups,
 	.match     = ibmebus_bus_bus_match,
 	.probe     = ibmebus_bus_device_probe,
 	.remove    = ibmebus_bus_device_remove,
-- 
cgit 


From 367601fcedefd084f44ee476c92e20b38238c645 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 23 Aug 2013 14:24:31 -0700
Subject: PPC: VIO: convert bus code to use bus_groups

The bus_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the VIO bus code to use the
correct field.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/powerpc/kernel/vio.c | 66 ++++++++++++++++++++++++++---------------------
 1 file changed, 36 insertions(+), 30 deletions(-)

diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 78a350670de3..0126c297fe88 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -997,21 +997,36 @@ static struct device_attribute vio_cmo_dev_attrs[] = {
 /* sysfs bus functions and data structures for CMO */
 
 #define viobus_cmo_rd_attr(name)                                        \
-static ssize_t                                                          \
-viobus_cmo_##name##_show(struct bus_type *bt, char *buf)                \
+static ssize_t cmo_##name##_show(struct bus_type *bt, char *buf)        \
 {                                                                       \
 	return sprintf(buf, "%lu\n", vio_cmo.name);                     \
-}
+}                                                                       \
+static BUS_ATTR_RO(cmo_##name)
 
 #define viobus_cmo_pool_rd_attr(name, var)                              \
 static ssize_t                                                          \
-viobus_cmo_##name##_pool_show_##var(struct bus_type *bt, char *buf)     \
+cmo_##name##_##var##_show(struct bus_type *bt, char *buf)               \
 {                                                                       \
 	return sprintf(buf, "%lu\n", vio_cmo.name.var);                 \
+}                                                                       \
+static BUS_ATTR_RO(cmo_##name##_##var)
+
+viobus_cmo_rd_attr(entitled);
+viobus_cmo_rd_attr(spare);
+viobus_cmo_rd_attr(min);
+viobus_cmo_rd_attr(desired);
+viobus_cmo_rd_attr(curr);
+viobus_cmo_pool_rd_attr(reserve, size);
+viobus_cmo_pool_rd_attr(excess, size);
+viobus_cmo_pool_rd_attr(excess, free);
+
+static ssize_t cmo_high_show(struct bus_type *bt, char *buf)
+{
+	return sprintf(buf, "%lu\n", vio_cmo.high);
 }
 
-static ssize_t viobus_cmo_high_reset(struct bus_type *bt, const char *buf,
-                                     size_t count)
+static ssize_t cmo_high_store(struct bus_type *bt, const char *buf,
+			      size_t count)
 {
 	unsigned long flags;
 
@@ -1021,35 +1036,26 @@ static ssize_t viobus_cmo_high_reset(struct bus_type *bt, const char *buf,
 
 	return count;
 }
-
-viobus_cmo_rd_attr(entitled);
-viobus_cmo_pool_rd_attr(reserve, size);
-viobus_cmo_pool_rd_attr(excess, size);
-viobus_cmo_pool_rd_attr(excess, free);
-viobus_cmo_rd_attr(spare);
-viobus_cmo_rd_attr(min);
-viobus_cmo_rd_attr(desired);
-viobus_cmo_rd_attr(curr);
-viobus_cmo_rd_attr(high);
-
-static struct bus_attribute vio_cmo_bus_attrs[] = {
-	__ATTR(cmo_entitled, S_IRUGO, viobus_cmo_entitled_show, NULL),
-	__ATTR(cmo_reserve_size, S_IRUGO, viobus_cmo_reserve_pool_show_size, NULL),
-	__ATTR(cmo_excess_size, S_IRUGO, viobus_cmo_excess_pool_show_size, NULL),
-	__ATTR(cmo_excess_free, S_IRUGO, viobus_cmo_excess_pool_show_free, NULL),
-	__ATTR(cmo_spare,   S_IRUGO, viobus_cmo_spare_show,   NULL),
-	__ATTR(cmo_min,     S_IRUGO, viobus_cmo_min_show,     NULL),
-	__ATTR(cmo_desired, S_IRUGO, viobus_cmo_desired_show, NULL),
-	__ATTR(cmo_curr,    S_IRUGO, viobus_cmo_curr_show,    NULL),
-	__ATTR(cmo_high,    S_IWUSR|S_IRUSR|S_IWGRP|S_IRGRP|S_IROTH,
-	       viobus_cmo_high_show, viobus_cmo_high_reset),
-	__ATTR_NULL
+static BUS_ATTR_RW(cmo_high);
+
+static struct attribute *vio_bus_attrs[] = {
+	&bus_attr_cmo_entitled.attr,
+	&bus_attr_cmo_spare.attr,
+	&bus_attr_cmo_min.attr,
+	&bus_attr_cmo_desired.attr,
+	&bus_attr_cmo_curr.attr,
+	&bus_attr_cmo_high.attr,
+	&bus_attr_cmo_reserve_size.attr,
+	&bus_attr_cmo_excess_size.attr,
+	&bus_attr_cmo_excess_free.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(vio_bus);
 
 static void vio_cmo_sysfs_init(void)
 {
 	vio_bus_type.dev_attrs = vio_cmo_dev_attrs;
-	vio_bus_type.bus_attrs = vio_cmo_bus_attrs;
+	vio_bus_type.bus_groups = vio_bus_groups;
 }
 #else /* CONFIG_PPC_SMLPAR */
 int vio_cmo_entitlement_update(size_t new_entitlement) { return 0; }
-- 
cgit 


From c88dc5554a3a59553e98e89d6d10be7c976179cb Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 23 Aug 2013 14:24:32 -0700
Subject: SCSI: fcoe: convert bus code to use bus_groups

The bus_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the fcoe bus code to use the
correct field.

Cc: Robert Love <robert.w.love@intel.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/fcoe/fcoe_sysfs.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/fcoe/fcoe_sysfs.c b/drivers/scsi/fcoe/fcoe_sysfs.c
index c9382d6eee78..8189b96eac7e 100644
--- a/drivers/scsi/fcoe/fcoe_sysfs.c
+++ b/drivers/scsi/fcoe/fcoe_sysfs.c
@@ -553,16 +553,20 @@ static struct device_type fcoe_fcf_device_type = {
 	.release = fcoe_fcf_device_release,
 };
 
-static struct bus_attribute fcoe_bus_attr_group[] = {
-	__ATTR(ctlr_create, S_IWUSR, NULL, fcoe_ctlr_create_store),
-	__ATTR(ctlr_destroy, S_IWUSR, NULL, fcoe_ctlr_destroy_store),
-	__ATTR_NULL
+static BUS_ATTR(ctlr_create, S_IWUSR, NULL, fcoe_ctlr_create_store);
+static BUS_ATTR(ctlr_destroy, S_IWUSR, NULL, fcoe_ctlr_destroy_store);
+
+static struct attribute *fcoe_bus_attrs[] = {
+	&bus_attr_ctlr_create.attr,
+	&bus_attr_ctrl_destroy.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(fcoe_bus);
 
 static struct bus_type fcoe_bus_type = {
 	.name = "fcoe",
 	.match = &fcoe_bus_match,
-	.bus_attrs = fcoe_bus_attr_group,
+	.bus_groups = fcoe_bus_groups,
 };
 
 /**
-- 
cgit 


From 90826ca74017db8d1e1654fee99309cd01364ef9 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 23 Aug 2013 14:24:40 -0700
Subject: pmu_bus: convert bus code to use dev_groups

The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the pmu bus code to use
the correct field.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/events/core.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index dd236b66ca3a..1a825a486a25 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -6271,6 +6271,7 @@ type_show(struct device *dev, struct device_attribute *attr, char *page)
 
 	return snprintf(page, PAGE_SIZE-1, "%d\n", pmu->type);
 }
+static DEVICE_ATTR_RO(type);
 
 static ssize_t
 perf_event_mux_interval_ms_show(struct device *dev,
@@ -6315,17 +6316,19 @@ perf_event_mux_interval_ms_store(struct device *dev,
 
 	return count;
 }
+static DEVICE_ATTR_RW(perf_event_mux_interval_ms);
 
-static struct device_attribute pmu_dev_attrs[] = {
-	__ATTR_RO(type),
-	__ATTR_RW(perf_event_mux_interval_ms),
-	__ATTR_NULL,
+static struct attribute *pmu_dev_attrs[] = {
+	&dev_attr_type.attr,
+	&dev_attr_perf_event_mux_interval_ms.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(pmu_dev);
 
 static int pmu_bus_running;
 static struct bus_type pmu_bus = {
 	.name		= "event_source",
-	.dev_attrs	= pmu_dev_attrs,
+	.dev_groups	= pmu_dev_groups,
 };
 
 static void pmu_dev_release(struct device *dev)
-- 
cgit 


From 244afeca2b5860a006307a2cd99277bc776648b0 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 23 Aug 2013 14:24:27 -0700
Subject: PCI: convert bus code to use bus_groups

The bus_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the PCI bus code to use the
correct field.

Cc: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/pci-driver.c |  2 +-
 drivers/pci/pci-sysfs.c  | 16 +++++++++++++---
 drivers/pci/pci.h        |  2 +-
 3 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 98f7b9b89507..e00f74143115 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -1317,7 +1317,7 @@ struct bus_type pci_bus_type = {
 	.remove		= pci_device_remove,
 	.shutdown	= pci_device_shutdown,
 	.dev_attrs	= pci_dev_attrs,
-	.bus_attrs	= pci_bus_attrs,
+	.bus_groups	= pci_bus_groups,
 	.drv_attrs	= pci_drv_attrs,
 	.pm		= PCI_PM_OPS_PTR,
 };
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 7128cfdd64aa..d8eb880bd1fc 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -302,10 +302,20 @@ static ssize_t bus_rescan_store(struct bus_type *bus, const char *buf,
 	}
 	return count;
 }
+static BUS_ATTR(rescan, (S_IWUSR|S_IWGRP), NULL, bus_rescan_store);
 
-struct bus_attribute pci_bus_attrs[] = {
-	__ATTR(rescan, (S_IWUSR|S_IWGRP), NULL, bus_rescan_store),
-	__ATTR_NULL
+struct attribute *pci_bus_attrs[] = {
+	&bus_attr_rescan.attr,
+	NULL,
+};
+
+static const struct attribute_group pci_bus_group = {
+	.attrs = pci_bus_attrs,
+};
+
+const struct attribute_group *pci_bus_groups[] = {
+	&pci_bus_group,
+	NULL,
 };
 
 static ssize_t
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 8a00c063d7bc..607be58dd728 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -156,7 +156,7 @@ static inline int pci_no_d1d2(struct pci_dev *dev)
 extern struct device_attribute pci_dev_attrs[];
 extern const struct attribute_group *pcibus_groups[];
 extern struct device_type pci_dev_type;
-extern struct bus_attribute pci_bus_attrs[];
+extern const struct attribute_group *pci_bus_groups[];
 
 
 /**
-- 
cgit 


From 19b6e6a4f5c25192d366861e68da5f836a518f1b Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 23 Aug 2013 14:24:35 -0700
Subject: PCI: convert bus code to use drv_groups

The drv_attrs field of struct bus_type is going away soon, drv_groups
should be used instead.  This converts the PCI bus code to use the
correct field.

Cc: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/pci-driver.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index e00f74143115..38f3c0140dfb 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -135,6 +135,7 @@ store_new_id(struct device_driver *driver, const char *buf, size_t count)
 		return retval;
 	return count;
 }
+static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
 
 /**
  * store_remove_id - remove a PCI device ID from this driver
@@ -180,12 +181,14 @@ store_remove_id(struct device_driver *driver, const char *buf, size_t count)
 		return retval;
 	return count;
 }
+static DRIVER_ATTR(remove_id, S_IWUSR, NULL, store_remove_id);
 
-static struct driver_attribute pci_drv_attrs[] = {
-	__ATTR(new_id, S_IWUSR, NULL, store_new_id),
-	__ATTR(remove_id, S_IWUSR, NULL, store_remove_id),
-	__ATTR_NULL,
+static struct attribute *pci_drv_attrs[] = {
+	&driver_attr_new_id.attr,
+	&driver_attr_remove_id.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(pci_drv);
 
 /**
  * pci_match_id - See if a pci device matches a given pci_id table
@@ -1318,7 +1321,7 @@ struct bus_type pci_bus_type = {
 	.shutdown	= pci_device_shutdown,
 	.dev_attrs	= pci_dev_attrs,
 	.bus_groups	= pci_bus_groups,
-	.drv_attrs	= pci_drv_attrs,
+	.drv_groups	= pci_drv_groups,
 	.pm		= PCI_PM_OPS_PTR,
 };
 
-- 
cgit 


From 1926d0aeecf0280c67bf7464b2d68fe4e92c566b Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Sun, 1 Sep 2013 17:24:16 +0100
Subject: hvc_vio: Do not override preferred console set by kernel parameter

The original version of this was done by Bastian Blank, who wrote:

> The problem is the following:
> - Architecture specific code sets preferred console to something bogus.
> - Command line handling tries to set preferred console but is overruled
>   by the old setting.
>
> The udbg0 console is a boot console and independant.

References: http://bugs.debian.org/492703
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/hvc/hvc_vio.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/hvc/hvc_vio.c b/drivers/tty/hvc/hvc_vio.c
index c791b18cdd08..b594abfbf21e 100644
--- a/drivers/tty/hvc/hvc_vio.c
+++ b/drivers/tty/hvc/hvc_vio.c
@@ -48,6 +48,7 @@
 #include <asm/prom.h>
 #include <asm/hvsi.h>
 #include <asm/udbg.h>
+#include <asm/machdep.h>
 
 #include "hvc_console.h"
 
@@ -457,7 +458,9 @@ void __init hvc_vio_init_early(void)
 	if (hvterm_priv0.proto == HV_PROTOCOL_HVSI)
 		goto out;
 #endif
-	add_preferred_console("hvc", 0, NULL);
+	/* Check whether the user has requested a different console. */
+	if (!strstr(cmd_line, "console="))
+		add_preferred_console("hvc", 0, NULL);
 	hvc_instantiate(0, 0, ops);
 out:
 	of_node_put(stdout_node);
-- 
cgit 


From 64545880927e15d5e82a9f33c3fd0704c775bd80 Mon Sep 17 00:00:00 2001
From: Adam Borowski <kilobyte@angband.pl>
Date: Tue, 10 Sep 2013 22:54:35 +0200
Subject: vt: break a couple of obsolete SCOish codes.

No modern terminal supports them, and SGR 38 conflicts with detecting
xterm-256 colours.  This also makes SGR 39 consistent with other popular
terminals.  Neither are used by ncurses' terminfo.

Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/vt/vt.c | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index 9a8e8c5a0c73..ef95c6c1698f 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1300,21 +1300,8 @@ static void csi_m(struct vc_data *vc)
 			case 27:
 				vc->vc_reverse = 0;
 				break;
-			case 38: /* ANSI X3.64-1979 (SCO-ish?)
-				  * Enables underscore, white foreground
-				  * with white underscore (Linux - use
-				  * default foreground).
-				  */
-				vc->vc_color = (vc->vc_def_color & 0x0f) | (vc->vc_color & 0xf0);
-				vc->vc_underline = 1;
-				break;
-			case 39: /* ANSI X3.64-1979 (SCO-ish?)
-				  * Disable underline option.
-				  * Reset colour to default? It did this
-				  * before...
-				  */
+			case 39:
 				vc->vc_color = (vc->vc_def_color & 0x0f) | (vc->vc_color & 0xf0);
-				vc->vc_underline = 0;
 				break;
 			case 49:
 				vc->vc_color = (vc->vc_def_color & 0xf0) | (vc->vc_color & 0x0f);
-- 
cgit 


From 3415097ff0529eac264b8ccfa06572871e45c090 Mon Sep 17 00:00:00 2001
From: Adam Borowski <kilobyte@angband.pl>
Date: Fri, 12 Jul 2013 22:23:41 +0200
Subject: vt: properly ignore xterm-256 colour codes

This is not a bug on our side, but a misdesign in ITU T.416, yet with
all popular terminals supporting these codes, people consider this to
be a bug in Linux.  By breaking the design principles behind SGR codes
(gracefully ignoring unsupported ones should not require knowing about
them), 256 colour ones tend to turn blinking on before invoking an
arbitrary unrelated command.

This commit doesn't add such support, merely skips such codes without
ill effects.

Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/vt/vt.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/tty/vt/vt.c b/drivers/tty/vt/vt.c
index ef95c6c1698f..61b1137d7e56 100644
--- a/drivers/tty/vt/vt.c
+++ b/drivers/tty/vt/vt.c
@@ -1300,6 +1300,28 @@ static void csi_m(struct vc_data *vc)
 			case 27:
 				vc->vc_reverse = 0;
 				break;
+			case 38:
+			case 48: /* ITU T.416
+				  * Higher colour modes.
+				  * They break the usual properties of SGR codes
+				  * and thus need to be detected and ignored by
+				  * hand.  Strictly speaking, that standard also
+				  * wants : rather than ; as separators, contrary
+				  * to ECMA-48, but no one produces such codes
+				  * and almost no one accepts them.
+				  */
+				i++;
+				if (i > vc->vc_npar)
+					break;
+				if (vc->vc_par[i] == 5)      /* 256 colours */
+					i++;                 /* ubiquitous */
+				else if (vc->vc_par[i] == 2) /* 24 bit colours */
+					i += 3;              /* extremely rare */
+				/* Subcommands 3 (CMY) and 4 (CMYK) are so insane
+				 * that detecting them is not worth the few extra
+				 * bytes of kernel's size.
+				 */
+				break;
 			case 39:
 				vc->vc_color = (vc->vc_def_color & 0x0f) | (vc->vc_color & 0xf0);
 				break;
-- 
cgit 


From 1296fc02c22cb8bc0cde34fbd1336d1a8d76f1e1 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 26 Sep 2013 16:15:02 -0700
Subject: scsi: fcoe: fix build error

I had a typo in a variable name for the previous patch (SCSI: fcoe:
convert bus code to use bus_group) that broke the build, this fixes
that.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/scsi/fcoe/fcoe_sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/fcoe/fcoe_sysfs.c b/drivers/scsi/fcoe/fcoe_sysfs.c
index 8189b96eac7e..1f4f22fe8281 100644
--- a/drivers/scsi/fcoe/fcoe_sysfs.c
+++ b/drivers/scsi/fcoe/fcoe_sysfs.c
@@ -558,7 +558,7 @@ static BUS_ATTR(ctlr_destroy, S_IWUSR, NULL, fcoe_ctlr_destroy_store);
 
 static struct attribute *fcoe_bus_attrs[] = {
 	&bus_attr_ctlr_create.attr,
-	&bus_attr_ctrl_destroy.attr,
+	&bus_attr_ctlr_destroy.attr,
 	NULL,
 };
 ATTRIBUTE_GROUPS(fcoe_bus);
-- 
cgit 


From eee031649707db3c9920d9498f8d03819b74fc23 Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Wed, 11 Sep 2013 13:00:30 -0400
Subject: kobject: introduce kobj_completion

A common way to handle kobject lifetimes in embedded in objects with
different lifetime rules is to pair the kobject with a struct completion.

This introduces a kobj_completion structure that can be used in place
of the pairing, along with several convenience functions for
initialization, release, and put-and-wait.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/kobj_completion.h | 18 +++++++++++++++
 lib/kobject.c                   | 50 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 68 insertions(+)
 create mode 100644 include/linux/kobj_completion.h

diff --git a/include/linux/kobj_completion.h b/include/linux/kobj_completion.h
new file mode 100644
index 000000000000..a428f6436063
--- /dev/null
+++ b/include/linux/kobj_completion.h
@@ -0,0 +1,18 @@
+#ifndef _KOBJ_COMPLETION_H_
+#define _KOBJ_COMPLETION_H_
+
+#include <linux/kobject.h>
+#include <linux/completion.h>
+
+struct kobj_completion {
+	struct kobject kc_kobj;
+	struct completion kc_unregister;
+};
+
+#define kobj_to_kobj_completion(kobj) \
+	container_of(kobj, struct kobj_completion, kc_kobj)
+
+void kobj_completion_init(struct kobj_completion *kc, struct kobj_type *ktype);
+void kobj_completion_release(struct kobject *kobj);
+void kobj_completion_del_and_wait(struct kobj_completion *kc);
+#endif /* _KOBJ_COMPLETION_H_ */
diff --git a/lib/kobject.c b/lib/kobject.c
index e769ee3c2fb9..a5a9b13b0648 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -13,6 +13,7 @@
  */
 
 #include <linux/kobject.h>
+#include <linux/kobj_completion.h>
 #include <linux/string.h>
 #include <linux/export.h>
 #include <linux/stat.h>
@@ -749,6 +750,55 @@ const struct sysfs_ops kobj_sysfs_ops = {
 	.store	= kobj_attr_store,
 };
 
+/**
+ * kobj_completion_init - initialize a kobj_completion object.
+ * @kc: kobj_completion
+ * @ktype: type of kobject to initialize
+ *
+ * kobj_completion structures can be embedded within structures with different
+ * lifetime rules.  During the release of the enclosing object, we can
+ * wait on the release of the kobject so that we don't free it while it's
+ * still busy.
+ */
+void kobj_completion_init(struct kobj_completion *kc, struct kobj_type *ktype)
+{
+	init_completion(&kc->kc_unregister);
+	kobject_init(&kc->kc_kobj, ktype);
+}
+EXPORT_SYMBOL_GPL(kobj_completion_init);
+
+/**
+ * kobj_completion_release - release a kobj_completion object
+ * @kobj: kobject embedded in kobj_completion
+ *
+ * Used with kobject_release to notify waiters that the kobject has been
+ * released.
+ */
+void kobj_completion_release(struct kobject *kobj)
+{
+	struct kobj_completion *kc = kobj_to_kobj_completion(kobj);
+	complete(&kc->kc_unregister);
+}
+EXPORT_SYMBOL_GPL(kobj_completion_release);
+
+/**
+ * kobj_completion_del_and_wait - release the kobject and wait for it
+ * @kc: kobj_completion object to release
+ *
+ * Delete the kobject from sysfs and drop the reference count.  Then wait
+ * until any other outstanding references are also dropped.  This routine
+ * is only necessary once other references may have been taken on the
+ * kobject.  Typically this happens when the kobject has been published
+ * to sysfs via kobject_add.
+ */
+void kobj_completion_del_and_wait(struct kobj_completion *kc)
+{
+	kobject_del(&kc->kc_kobj);
+	kobject_put(&kc->kc_kobj);
+	wait_for_completion(&kc->kc_unregister);
+}
+EXPORT_SYMBOL_GPL(kobj_completion_del_and_wait);
+
 /**
  * kset_register - initialize and add a kset.
  * @k: kset.
-- 
cgit 


From 3f9120b0424f3e03c75518cb751f9e2bfa73c32a Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Mon, 23 Sep 2013 16:27:26 +0200
Subject: driver core: prevent deferred probe with platform_driver_probe

Prevent drivers relying on platform_driver_probe from requesting
deferred probing in order to avoid further futile probe attempts (either
the driver has been unregistered or its probe function has been set to
platform_drv_probe_fail when probing is retried).

Note that several platform drivers currently return subsystem errors
from probe and that these can include -EPROBE_DEFER (e.g. if a gpio
request fails).

Add a warning to platform_drv_probe that can be used to catch drivers
that inadvertently request probe deferral while using
platform_driver_probe.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/base/platform.c         | 17 +++++++++++++----
 include/linux/platform_device.h |  1 +
 2 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 4f8bef3eb5a8..47051cd25113 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -488,6 +488,11 @@ static int platform_drv_probe(struct device *_dev)
 	if (ret && ACPI_HANDLE(_dev))
 		acpi_dev_pm_detach(_dev, true);
 
+	if (drv->prevent_deferred_probe && ret == -EPROBE_DEFER) {
+		dev_warn(_dev, "probe deferral not supported\n");
+		ret = -ENXIO;
+	}
+
 	return ret;
 }
 
@@ -553,8 +558,7 @@ EXPORT_SYMBOL_GPL(platform_driver_unregister);
 /**
  * platform_driver_probe - register driver for non-hotpluggable device
  * @drv: platform driver structure
- * @probe: the driver probe routine, probably from an __init section,
- *         must not return -EPROBE_DEFER.
+ * @probe: the driver probe routine, probably from an __init section
  *
  * Use this instead of platform_driver_register() when you know the device
  * is not hotpluggable and has already been registered, and you want to
@@ -565,8 +569,7 @@ EXPORT_SYMBOL_GPL(platform_driver_unregister);
  * into system-on-chip processors, where the controller devices have been
  * configured as part of board setup.
  *
- * This is incompatible with deferred probing so probe() must not
- * return -EPROBE_DEFER.
+ * Note that this is incompatible with deferred probing.
  *
  * Returns zero if the driver registered and bound to a device, else returns
  * a negative error code and with the driver not registered.
@@ -576,6 +579,12 @@ int __init_or_module platform_driver_probe(struct platform_driver *drv,
 {
 	int retval, code;
 
+	/*
+	 * Prevent driver from requesting probe deferral to avoid further
+	 * futile probe attempts.
+	 */
+	drv->prevent_deferred_probe = true;
+
 	/* make sure driver won't have bind/unbind attributes */
 	drv->driver.suppress_bind_attrs = true;
 
diff --git a/include/linux/platform_device.h b/include/linux/platform_device.h
index ce8e4ffd78c7..16f6654082dd 100644
--- a/include/linux/platform_device.h
+++ b/include/linux/platform_device.h
@@ -178,6 +178,7 @@ struct platform_driver {
 	int (*resume)(struct platform_device *);
 	struct device_driver driver;
 	const struct platform_device_id *id_table;
+	bool prevent_deferred_probe;
 };
 
 #define to_platform_driver(drv)	(container_of((drv), struct platform_driver, \
-- 
cgit 


From 1867adee6ed7793a256ecdd623e1337988223c09 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Mon, 23 Sep 2013 16:27:27 +0200
Subject: mmc: mvsdio: fix deferred probe from __init

Move probe out of __init section and don't use platform_driver_probe
which cannot be used with deferred probing.

Since commit e9354576 ("gpiolib: Defer failed gpio requests by default")
this driver might return -EPROBE_DEFER if the mmc_gpio_request_cd fails.

Cc: Nicolas Pitre <nico@fluxnic.net>
Cc: Chris Ball <cjb@laptop.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/host/mvsdio.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
index 06c5b0b28ebc..deecee08c288 100644
--- a/drivers/mmc/host/mvsdio.c
+++ b/drivers/mmc/host/mvsdio.c
@@ -655,7 +655,7 @@ static const struct mmc_host_ops mvsd_ops = {
 	.enable_sdio_irq	= mvsd_enable_sdio_irq,
 };
 
-static void __init
+static void
 mv_conf_mbus_windows(struct mvsd_host *host,
 		     const struct mbus_dram_target_info *dram)
 {
@@ -677,7 +677,7 @@ mv_conf_mbus_windows(struct mvsd_host *host,
 	}
 }
 
-static int __init mvsd_probe(struct platform_device *pdev)
+static int mvsd_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 	struct mmc_host *mmc = NULL;
@@ -819,7 +819,7 @@ out:
 	return ret;
 }
 
-static int __exit mvsd_remove(struct platform_device *pdev)
+static int mvsd_remove(struct platform_device *pdev)
 {
 	struct mmc_host *mmc = platform_get_drvdata(pdev);
 
@@ -872,7 +872,8 @@ static const struct of_device_id mvsdio_dt_ids[] = {
 MODULE_DEVICE_TABLE(of, mvsdio_dt_ids);
 
 static struct platform_driver mvsd_driver = {
-	.remove		= __exit_p(mvsd_remove),
+	.probe		= mvsd_probe,
+	.remove		= mvsd_remove,
 	.suspend	= mvsd_suspend,
 	.resume		= mvsd_resume,
 	.driver		= {
@@ -881,7 +882,7 @@ static struct platform_driver mvsd_driver = {
 	},
 };
 
-module_platform_driver_probe(mvsd_driver, mvsd_probe);
+module_platform_driver(mvsd_driver);
 
 /* maximum card clock frequency (default 50MHz) */
 module_param(maxfreq, int, 0);
-- 
cgit 


From 2c2b928584f0b60e09031c06362d8b42ec55a7cd Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Mon, 23 Sep 2013 16:27:28 +0200
Subject: mtd: atmel_nand: fix deferred probe from __init

Move probe out of __init section and don't use platform_driver_probe
which cannot be used with deferred probing.

Since commit e9354576 ("gpiolib: Defer failed gpio requests by default")
this driver might return -EPROBE_DEFER if a gpio_request fails.

Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mtd/nand/atmel_nand.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 060feeaf6b3e..bd1ce7d13702 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -1139,7 +1139,7 @@ static int pmecc_choose_ecc(struct atmel_nand_host *host,
 	return 0;
 }
 
-static int __init atmel_pmecc_nand_init_params(struct platform_device *pdev,
+static int atmel_pmecc_nand_init_params(struct platform_device *pdev,
 					 struct atmel_nand_host *host)
 {
 	struct mtd_info *mtd = &host->mtd;
@@ -1548,7 +1548,7 @@ static int atmel_of_init_port(struct atmel_nand_host *host,
 }
 #endif
 
-static int __init atmel_hw_nand_init_params(struct platform_device *pdev,
+static int atmel_hw_nand_init_params(struct platform_device *pdev,
 					 struct atmel_nand_host *host)
 {
 	struct mtd_info *mtd = &host->mtd;
@@ -1987,7 +1987,7 @@ static struct platform_driver atmel_nand_nfc_driver;
 /*
  * Probe for the NAND device.
  */
-static int __init atmel_nand_probe(struct platform_device *pdev)
+static int atmel_nand_probe(struct platform_device *pdev)
 {
 	struct atmel_nand_host *host;
 	struct mtd_info *mtd;
@@ -2184,7 +2184,7 @@ err_nand_ioremap:
 /*
  * Remove a NAND device.
  */
-static int __exit atmel_nand_remove(struct platform_device *pdev)
+static int atmel_nand_remove(struct platform_device *pdev)
 {
 	struct atmel_nand_host *host = platform_get_drvdata(pdev);
 	struct mtd_info *mtd = &host->mtd;
@@ -2270,7 +2270,8 @@ static struct platform_driver atmel_nand_nfc_driver = {
 };
 
 static struct platform_driver atmel_nand_driver = {
-	.remove		= __exit_p(atmel_nand_remove),
+	.probe		= atmel_nand_probe,
+	.remove		= atmel_nand_remove,
 	.driver		= {
 		.name	= "atmel_nand",
 		.owner	= THIS_MODULE,
@@ -2278,7 +2279,7 @@ static struct platform_driver atmel_nand_driver = {
 	},
 };
 
-module_platform_driver_probe(atmel_nand_driver, atmel_nand_probe);
+module_platform_driver(atmel_nand_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Rick Bronson");
-- 
cgit 


From 16a7c7cfd21cca8a260b63467e4f5c6a6d548b09 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Mon, 23 Sep 2013 16:27:29 +0200
Subject: pcmcia: at91_cf: fix deferred probe from __init

Move probe out of __init section and don't use platform_driver_probe
which cannot be used with deferred probing.

Since commit e9354576 ("gpiolib: Defer failed gpio requests by default")
this driver might return -EPROBE_DEFER if a gpio_request fails.

Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pcmcia/at91_cf.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/pcmcia/at91_cf.c b/drivers/pcmcia/at91_cf.c
index b8f5acf02261..de24232c5191 100644
--- a/drivers/pcmcia/at91_cf.c
+++ b/drivers/pcmcia/at91_cf.c
@@ -245,7 +245,7 @@ static int at91_cf_dt_init(struct platform_device *pdev)
 }
 #endif
 
-static int __init at91_cf_probe(struct platform_device *pdev)
+static int at91_cf_probe(struct platform_device *pdev)
 {
 	struct at91_cf_socket	*cf;
 	struct at91_cf_data	*board = pdev->dev.platform_data;
@@ -354,7 +354,7 @@ fail0a:
 	return status;
 }
 
-static int __exit at91_cf_remove(struct platform_device *pdev)
+static int at91_cf_remove(struct platform_device *pdev)
 {
 	struct at91_cf_socket	*cf = platform_get_drvdata(pdev);
 
@@ -404,14 +404,13 @@ static struct platform_driver at91_cf_driver = {
 		.owner		= THIS_MODULE,
 		.of_match_table = of_match_ptr(at91_cf_dt_ids),
 	},
-	.remove		= __exit_p(at91_cf_remove),
+	.probe		= at91_cf_probe,
+	.remove		= at91_cf_remove,
 	.suspend	= at91_cf_suspend,
 	.resume		= at91_cf_resume,
 };
 
-/*--------------------------------------------------------------------------*/
-
-module_platform_driver_probe(at91_cf_driver, at91_cf_probe);
+module_platform_driver(at91_cf_driver);
 
 MODULE_DESCRIPTION("AT91 Compact Flash Driver");
 MODULE_AUTHOR("David Brownell");
-- 
cgit 


From f3a9995f2575fecc14189a06d217700bbdb52cf5 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Mon, 23 Sep 2013 16:27:30 +0200
Subject: usb: gadget: pxa25x_udc: fix deferred probe from __init

Move probe out of __init section and don't use platform_driver_probe
which cannot be used with deferred probing.

Since commit e9354576 ("gpiolib: Defer failed gpio requests by default")
this driver might return -EPROBE_DEFER if a gpio_request fails.

Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/pxa25x_udc.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c
index cc9207473dbc..0ac6064aa3b8 100644
--- a/drivers/usb/gadget/pxa25x_udc.c
+++ b/drivers/usb/gadget/pxa25x_udc.c
@@ -2054,7 +2054,7 @@ static struct pxa25x_udc memory = {
 /*
  *	probe - binds to the platform device
  */
-static int __init pxa25x_udc_probe(struct platform_device *pdev)
+static int pxa25x_udc_probe(struct platform_device *pdev)
 {
 	struct pxa25x_udc *dev = &memory;
 	int retval, irq;
@@ -2203,7 +2203,7 @@ static void pxa25x_udc_shutdown(struct platform_device *_dev)
 	pullup_off();
 }
 
-static int __exit pxa25x_udc_remove(struct platform_device *pdev)
+static int pxa25x_udc_remove(struct platform_device *pdev)
 {
 	struct pxa25x_udc *dev = platform_get_drvdata(pdev);
 
@@ -2294,7 +2294,8 @@ static int pxa25x_udc_resume(struct platform_device *dev)
 
 static struct platform_driver udc_driver = {
 	.shutdown	= pxa25x_udc_shutdown,
-	.remove		= __exit_p(pxa25x_udc_remove),
+	.probe		= pxa25x_udc_probe,
+	.remove		= pxa25x_udc_remove,
 	.suspend	= pxa25x_udc_suspend,
 	.resume		= pxa25x_udc_resume,
 	.driver		= {
@@ -2303,7 +2304,7 @@ static struct platform_driver udc_driver = {
 	},
 };
 
-module_platform_driver_probe(udc_driver, pxa25x_udc_probe);
+module_platform_driver(udc_driver);
 
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_AUTHOR("Frank Becker, Robert Schwebel, David Brownell");
-- 
cgit 


From 17dab4d5b13fa438cc111611dcc4ac9a631deab9 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Mon, 23 Sep 2013 16:27:31 +0200
Subject: usb: phy: gpio-vbus: fix deferred probe from __init

Move probe out of __init section and don't use platform_driver_probe
which cannot be used with deferred probing.

Since commit e9354576 ("gpiolib: Defer failed gpio requests by default")
and 04bf3011 ("regulator: Support driver probe deferral") this driver
might return -EPROBE_DEFER if a gpio_request or regulator_get fails.

Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/phy/phy-gpio-vbus-usb.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/phy/phy-gpio-vbus-usb.c b/drivers/usb/phy/phy-gpio-vbus-usb.c
index b2f29c9aebbf..02799a5efcd4 100644
--- a/drivers/usb/phy/phy-gpio-vbus-usb.c
+++ b/drivers/usb/phy/phy-gpio-vbus-usb.c
@@ -241,7 +241,7 @@ static int gpio_vbus_set_suspend(struct usb_phy *phy, int suspend)
 
 /* platform driver interface */
 
-static int __init gpio_vbus_probe(struct platform_device *pdev)
+static int gpio_vbus_probe(struct platform_device *pdev)
 {
 	struct gpio_vbus_mach_info *pdata = dev_get_platdata(&pdev->dev);
 	struct gpio_vbus_data *gpio_vbus;
@@ -349,7 +349,7 @@ err_gpio:
 	return err;
 }
 
-static int __exit gpio_vbus_remove(struct platform_device *pdev)
+static int gpio_vbus_remove(struct platform_device *pdev)
 {
 	struct gpio_vbus_data *gpio_vbus = platform_get_drvdata(pdev);
 	struct gpio_vbus_mach_info *pdata = dev_get_platdata(&pdev->dev);
@@ -398,8 +398,6 @@ static const struct dev_pm_ops gpio_vbus_dev_pm_ops = {
 };
 #endif
 
-/* NOTE:  the gpio-vbus device may *NOT* be hotplugged */
-
 MODULE_ALIAS("platform:gpio-vbus");
 
 static struct platform_driver gpio_vbus_driver = {
@@ -410,10 +408,11 @@ static struct platform_driver gpio_vbus_driver = {
 		.pm = &gpio_vbus_dev_pm_ops,
 #endif
 	},
-	.remove  = __exit_p(gpio_vbus_remove),
+	.probe		= gpio_vbus_probe,
+	.remove		= gpio_vbus_remove,
 };
 
-module_platform_driver_probe(gpio_vbus_driver, gpio_vbus_probe);
+module_platform_driver(gpio_vbus_driver);
 
 MODULE_DESCRIPTION("simple GPIO controlled OTG transceiver driver");
 MODULE_AUTHOR("Philipp Zabel");
-- 
cgit 


From 9d3fde86b15303decea632c929fbf1f3ae4501f2 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Mon, 23 Sep 2013 16:27:32 +0200
Subject: backlight: atmel-pwm-bl: fix deferred probe from __init

Move probe out of __init section and don't use platform_driver_probe
which cannot be used with deferred probing.

Since commit e9354576 ("gpiolib: Defer failed gpio requests by default")
this driver might return -EPROBE_DEFER if a gpio_request fails.

Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/video/backlight/atmel-pwm-bl.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c
index 0393d827dd44..f7447f7004fb 100644
--- a/drivers/video/backlight/atmel-pwm-bl.c
+++ b/drivers/video/backlight/atmel-pwm-bl.c
@@ -118,7 +118,7 @@ static const struct backlight_ops atmel_pwm_bl_ops = {
 	.update_status  = atmel_pwm_bl_set_intensity,
 };
 
-static int __init atmel_pwm_bl_probe(struct platform_device *pdev)
+static int atmel_pwm_bl_probe(struct platform_device *pdev)
 {
 	struct backlight_properties props;
 	const struct atmel_pwm_bl_platform_data *pdata;
@@ -202,7 +202,7 @@ err_free_mem:
 	return retval;
 }
 
-static int __exit atmel_pwm_bl_remove(struct platform_device *pdev)
+static int atmel_pwm_bl_remove(struct platform_device *pdev)
 {
 	struct atmel_pwm_bl *pwmbl = platform_get_drvdata(pdev);
 
@@ -220,10 +220,11 @@ static struct platform_driver atmel_pwm_bl_driver = {
 		.name = "atmel-pwm-bl",
 	},
 	/* REVISIT add suspend() and resume() */
-	.remove = __exit_p(atmel_pwm_bl_remove),
+	.probe = atmel_pwm_bl_probe,
+	.remove = atmel_pwm_bl_remove,
 };
 
-module_platform_driver_probe(atmel_pwm_bl_driver, atmel_pwm_bl_probe);
+module_platform_driver(atmel_pwm_bl_driver);
 
 MODULE_AUTHOR("Hans-Christian egtvedt <hans-christian.egtvedt@atmel.com>");
 MODULE_DESCRIPTION("Atmel PWM backlight driver");
-- 
cgit 


From 7ba0127805abf27f0549f327699283e1dbed12f3 Mon Sep 17 00:00:00 2001
From: Dave Jones <davej@redhat.com>
Date: Tue, 3 Sep 2013 17:35:52 -0400
Subject: USB: phy: Restrict AM335x PHY driver to only be built on !ARM when
 COMPILE_TEST is set.

Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/phy/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index d5589f9c60a9..51ffe11cf38a 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -93,6 +93,7 @@ config AM335X_CONTROL_USB
 
 config AM335X_PHY_USB
 	tristate "AM335x USB PHY Driver"
+	depends on ARM || COMPILE_TEST
 	select USB_PHY
 	select AM335X_CONTROL_USB
 	select NOP_USB_XCEIV
-- 
cgit 


From 8c9247a6b5e57d04e55d94ecbfd9e9d61c2a01e1 Mon Sep 17 00:00:00 2001
From: Tim Deegan <tim@xen.org>
Date: Thu, 12 Sep 2013 16:08:10 +0100
Subject: USB: ehci-dbgp: drop dead code.

We can only reach this spot by breaking out of the scan loop,
so by construction ret > 0.

Found by Coverity, in a copy of this file in the Xen sources.

Signed-off-by: Tim Deegan <tim@xen.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/early/ehci-dbgp.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/usb/early/ehci-dbgp.c b/drivers/usb/early/ehci-dbgp.c
index 5e29ddeb4d33..8cfc3191be50 100644
--- a/drivers/usb/early/ehci-dbgp.c
+++ b/drivers/usb/early/ehci-dbgp.c
@@ -568,10 +568,6 @@ try_again:
 		dbgp_printk("Could not find attached debug device\n");
 		goto err;
 	}
-	if (ret < 0) {
-		dbgp_printk("Attached device is not a debug device\n");
-		goto err;
-	}
 	dbgp_endpoint_out = dbgp_desc.bDebugOutEndpoint;
 	dbgp_endpoint_in = dbgp_desc.bDebugInEndpoint;
 
-- 
cgit 


From 09d94cbd599e3b74b201d389d36cc260b67d318f Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Thu, 26 Sep 2013 10:49:40 -0500
Subject: usb: wusbcore: rename urb to tr_urb in struct wa_seg

Rename urb to tr_urb in struct wa_seg to make it clear that the urb is
used for the transfer request.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/wa-xfer.c | 30 ++++++++++++++++--------------
 1 file changed, 16 insertions(+), 14 deletions(-)

diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index cf1097963f8b..0b1cb65348ac 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -114,8 +114,8 @@ static void wa_xfer_delayed_run(struct wa_rpipe *);
  * struct).
  */
 struct wa_seg {
-	struct urb urb;
-	struct urb *dto_urb;		/* for data output? */
+	struct urb tr_urb;		/* transfer request urb. */
+	struct urb *dto_urb;		/* for data output. */
 	struct list_head list_node;	/* for rpipe->req_list */
 	struct wa_xfer *xfer;		/* out xfer */
 	u8 index;			/* which segment we are */
@@ -127,11 +127,11 @@ struct wa_seg {
 
 static inline void wa_seg_init(struct wa_seg *seg)
 {
-	usb_init_urb(&seg->urb);
+	usb_init_urb(&seg->tr_urb);
 
 	/* set the remaining memory to 0. */
-	memset(((void *)seg) + sizeof(seg->urb), 0,
-		sizeof(*seg) - sizeof(seg->urb));
+	memset(((void *)seg) + sizeof(seg->tr_urb), 0,
+		sizeof(*seg) - sizeof(seg->tr_urb));
 }
 
 /*
@@ -179,7 +179,7 @@ static void wa_xfer_destroy(struct kref *_xfer)
 		unsigned cnt;
 		for (cnt = 0; cnt < xfer->segs; cnt++) {
 			usb_free_urb(xfer->seg[cnt]->dto_urb);
-			usb_free_urb(&xfer->seg[cnt]->urb);
+			usb_free_urb(&xfer->seg[cnt]->tr_urb);
 		}
 	}
 	kfree(xfer);
@@ -494,12 +494,12 @@ static void __wa_xfer_setup_hdr0(struct wa_xfer *xfer,
 /*
  * Callback for the OUT data phase of the segment request
  *
- * Check wa_seg_cb(); most comments also apply here because this
+ * Check wa_seg_tr_cb(); most comments also apply here because this
  * function does almost the same thing and they work closely
  * together.
  *
  * If the seg request has failed but this DTO phase has succeeded,
- * wa_seg_cb() has already failed the segment and moved the
+ * wa_seg_tr_cb() has already failed the segment and moved the
  * status to WA_SEG_ERROR, so this will go through 'case 0' and
  * effectively do nothing.
  */
@@ -576,7 +576,7 @@ static void wa_seg_dto_cb(struct urb *urb)
  * as in that case, wa_seg_dto_cb will do it when the OUT data phase
  * finishes.
  */
-static void wa_seg_cb(struct urb *urb)
+static void wa_seg_tr_cb(struct urb *urb)
 {
 	struct wa_seg *seg = urb->context;
 	struct wa_xfer *xfer = seg->xfer;
@@ -740,11 +740,11 @@ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size)
 		wa_seg_init(seg);
 		seg->xfer = xfer;
 		seg->index = cnt;
-		usb_fill_bulk_urb(&seg->urb, usb_dev,
+		usb_fill_bulk_urb(&seg->tr_urb, usb_dev,
 				  usb_sndbulkpipe(usb_dev,
 						  dto_epd->bEndpointAddress),
 				  &seg->xfer_hdr, xfer_hdr_size,
-				  wa_seg_cb, seg);
+				  wa_seg_tr_cb, seg);
 		buf_itr_size = min(buf_size, xfer->seg_size);
 		if (xfer->is_inbound == 0 && buf_size > 0) {
 			/* outbound data. */
@@ -888,12 +888,14 @@ static int __wa_seg_submit(struct wa_rpipe *rpipe, struct wa_xfer *xfer,
 			   struct wa_seg *seg)
 {
 	int result;
-	result = usb_submit_urb(&seg->urb, GFP_ATOMIC);
+	/* submit the transfer request. */
+	result = usb_submit_urb(&seg->tr_urb, GFP_ATOMIC);
 	if (result < 0) {
 		printk(KERN_ERR "xfer %p#%u: REQ submit failed: %d\n",
 		       xfer, seg->index, result);
 		goto error_seg_submit;
 	}
+	/* submit the out data if this is an out request. */
 	if (seg->dto_urb) {
 		result = usb_submit_urb(seg->dto_urb, GFP_ATOMIC);
 		if (result < 0) {
@@ -907,7 +909,7 @@ static int __wa_seg_submit(struct wa_rpipe *rpipe, struct wa_xfer *xfer,
 	return 0;
 
 error_dto_submit:
-	usb_unlink_urb(&seg->urb);
+	usb_unlink_urb(&seg->tr_urb);
 error_seg_submit:
 	seg->status = WA_SEG_ERROR;
 	seg->result = result;
@@ -1313,7 +1315,7 @@ int wa_urb_dequeue(struct wahc *wa, struct urb *urb)
 			break;
 		case WA_SEG_SUBMITTED:
 			seg->status = WA_SEG_ABORTED;
-			usb_unlink_urb(&seg->urb);
+			usb_unlink_urb(&seg->tr_urb);
 			if (xfer->is_inbound == 0)
 				usb_unlink_urb(seg->dto_urb);
 			xfer->segs_done++;
-- 
cgit 


From 0367eef281006923bd35ee323cdc5d21179afe5a Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Thu, 26 Sep 2013 10:49:41 -0500
Subject: usb: wusbcore: rename fields in struct wahc

Rename xfer_result to dti_buf and xfer_result_size to dti_buf_size in
struct wahc.  The dti buffer will also be used for isochronous status
packets once isochronous transfers are supported.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/wa-hc.c   | 14 +++++++-------
 drivers/usb/wusbcore/wa-hc.h   |  4 ++--
 drivers/usb/wusbcore/wa-xfer.c | 18 +++++++++---------
 3 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/drivers/usb/wusbcore/wa-hc.c b/drivers/usb/wusbcore/wa-hc.c
index a09b65ebd9bb..6c09b0e4672b 100644
--- a/drivers/usb/wusbcore/wa-hc.c
+++ b/drivers/usb/wusbcore/wa-hc.c
@@ -44,11 +44,11 @@ int wa_create(struct wahc *wa, struct usb_interface *iface)
 	/* Fill up Data Transfer EP pointers */
 	wa->dti_epd = &iface->cur_altsetting->endpoint[1].desc;
 	wa->dto_epd = &iface->cur_altsetting->endpoint[2].desc;
-	wa->xfer_result_size = usb_endpoint_maxp(wa->dti_epd);
-	wa->xfer_result = kmalloc(wa->xfer_result_size, GFP_KERNEL);
-	if (wa->xfer_result == NULL) {
+	wa->dti_buf_size = usb_endpoint_maxp(wa->dti_epd);
+	wa->dti_buf = kmalloc(wa->dti_buf_size, GFP_KERNEL);
+	if (wa->dti_buf == NULL) {
 		result = -ENOMEM;
-		goto error_xfer_result_alloc;
+		goto error_dti_buf_alloc;
 	}
 	result = wa_nep_create(wa, iface);
 	if (result < 0) {
@@ -59,8 +59,8 @@ int wa_create(struct wahc *wa, struct usb_interface *iface)
 	return 0;
 
 error_nep_create:
-	kfree(wa->xfer_result);
-error_xfer_result_alloc:
+	kfree(wa->dti_buf);
+error_dti_buf_alloc:
 	wa_rpipes_destroy(wa);
 error_rpipes_create:
 	return result;
@@ -76,7 +76,7 @@ void __wa_destroy(struct wahc *wa)
 		usb_kill_urb(wa->buf_in_urb);
 		usb_put_urb(wa->buf_in_urb);
 	}
-	kfree(wa->xfer_result);
+	kfree(wa->dti_buf);
 	wa_nep_destroy(wa);
 	wa_rpipes_destroy(wa);
 }
diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h
index cf250c21e946..ab399343757e 100644
--- a/drivers/usb/wusbcore/wa-hc.h
+++ b/drivers/usb/wusbcore/wa-hc.h
@@ -184,8 +184,8 @@ struct wahc {
 	struct urb *dti_urb;		/* URB for reading xfer results */
 	struct urb *buf_in_urb;		/* URB for reading data in */
 	struct edc dti_edc;		/* DTI error density counter */
-	struct wa_xfer_result *xfer_result; /* real size = dti_ep maxpktsize */
-	size_t xfer_result_size;
+	void *dti_buf;
+	size_t dti_buf_size;
 
 	s32 status;			/* For reading status */
 
diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index 0b1cb65348ac..47cbfddad159 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -1418,7 +1418,8 @@ static int wa_xfer_status_to_errno(u8 status)
  *
  * FIXME: this function needs to be broken up in parts
  */
-static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer)
+static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer,
+		struct wa_xfer_result *xfer_result)
 {
 	int result;
 	struct device *dev = &wa->usb_iface->dev;
@@ -1426,8 +1427,7 @@ static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer)
 	u8 seg_idx;
 	struct wa_seg *seg;
 	struct wa_rpipe *rpipe;
-	struct wa_xfer_result *xfer_result = wa->xfer_result;
-	u8 done = 0;
+	unsigned done = 0;
 	u8 usb_status;
 	unsigned rpipe_ready = 0;
 
@@ -1687,7 +1687,7 @@ static void wa_buf_in_cb(struct urb *urb)
  * We go back to OFF when we detect a ENOENT or ESHUTDOWN (or too many
  * errors) in the URBs.
  */
-static void wa_xfer_result_cb(struct urb *urb)
+static void wa_dti_cb(struct urb *urb)
 {
 	int result;
 	struct wahc *wa = urb->context;
@@ -1709,7 +1709,7 @@ static void wa_xfer_result_cb(struct urb *urb)
 				urb->actual_length, sizeof(*xfer_result));
 			break;
 		}
-		xfer_result = wa->xfer_result;
+		xfer_result = (struct wa_xfer_result *)(wa->dti_buf);
 		if (xfer_result->hdr.bLength != sizeof(*xfer_result)) {
 			dev_err(dev, "DTI Error: xfer result--"
 				"bad header length %u\n",
@@ -1735,7 +1735,7 @@ static void wa_xfer_result_cb(struct urb *urb)
 				xfer_id, usb_status);
 			break;
 		}
-		wa_xfer_result_chew(wa, xfer);
+		wa_xfer_result_chew(wa, xfer, xfer_result);
 		wa_xfer_put(xfer);
 		break;
 	case -ENOENT:		/* (we killed the URB)...so, no broadcast */
@@ -1777,7 +1777,7 @@ out:
  * don't really set it up and start it until the first xfer complete
  * notification arrives, which is what we do here.
  *
- * Follow up in wa_xfer_result_cb(), as that's where the whole state
+ * Follow up in wa_dti_cb(), as that's where the whole state
  * machine starts.
  *
  * So here we just initialize the DTI URB for reading transfer result
@@ -1813,8 +1813,8 @@ void wa_handle_notif_xfer(struct wahc *wa, struct wa_notif_hdr *notif_hdr)
 	usb_fill_bulk_urb(
 		wa->dti_urb, wa->usb_dev,
 		usb_rcvbulkpipe(wa->usb_dev, 0x80 | notif_xfer->bEndpoint),
-		wa->xfer_result, wa->xfer_result_size,
-		wa_xfer_result_cb, wa);
+		wa->dti_buf, wa->dti_buf_size,
+		wa_dti_cb, wa);
 
 	wa->buf_in_urb = usb_alloc_urb(0, GFP_KERNEL);
 	if (wa->buf_in_urb == NULL) {
-- 
cgit 


From d993670ca97f646db1ef9b345e78ecfd3d6f0143 Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Thu, 26 Sep 2013 14:08:13 -0500
Subject: usb: wusbcore: allow wa_xfer_destroy to clean up partially
 constructed xfers

If __wa_xfer_setup fails, it can leave a partially constructed wa_xfer
object.  The error handling code eventually calls wa_xfer_destroy which
does not check for NULL before dereferencing xfer->seg which could cause
a kernel panic.  This change also makes sure to free xfer->seg which was
being leaked for all transfers before this change.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/wa-xfer.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index 47cbfddad159..d2c7b2bb17c1 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -178,9 +178,15 @@ static void wa_xfer_destroy(struct kref *_xfer)
 	if (xfer->seg) {
 		unsigned cnt;
 		for (cnt = 0; cnt < xfer->segs; cnt++) {
-			usb_free_urb(xfer->seg[cnt]->dto_urb);
-			usb_free_urb(&xfer->seg[cnt]->tr_urb);
+			if (xfer->seg[cnt]) {
+				if (xfer->seg[cnt]->dto_urb) {
+					kfree(xfer->seg[cnt]->dto_urb->sg);
+					usb_free_urb(xfer->seg[cnt]->dto_urb);
+				}
+				usb_free_urb(&xfer->seg[cnt]->tr_urb);
+			}
 		}
+		kfree(xfer->seg);
 	}
 	kfree(xfer);
 }
-- 
cgit 


From ffd6d17ddb1bea8267ee3edf6032fc6aa777e832 Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Thu, 26 Sep 2013 14:08:14 -0500
Subject: usb: wusbcore: resource cleanup fix in __wa_xfer_setup_segs

This patch updates __wa_xfer_setup_segs error path to only clean up the
xfer->seg entry that it failed to create and then set that entry to
NULL.  wa_xfer_destroy will clean up the remaining xfer->segs that were
fully created.  It also moves the code to create the dto sg list to an
out of line function to make __wa_xfer_setup_segs easier to read.  Prior
to this change, __wa_xfer_setup_segs would clean up all entries in the
xfer->seg array in case of an error but it did not set them to NULL.
This resulted in a double free when wa_xfer_destroy was eventually
called by the higher level error handler.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/wa-xfer.c | 121 +++++++++++++++++++++++------------------
 1 file changed, 67 insertions(+), 54 deletions(-)

diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index d2c7b2bb17c1..f614fb1ed77f 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -635,9 +635,11 @@ static void wa_seg_tr_cb(struct urb *urb)
 	}
 }
 
-/* allocate an SG list to store bytes_to_transfer bytes and copy the
+/*
+ * Allocate an SG list to store bytes_to_transfer bytes and copy the
  * subset of the in_sg that matches the buffer subset
- * we are about to transfer. */
+ * we are about to transfer.
+ */
 static struct scatterlist *wa_xfer_create_subset_sg(struct scatterlist *in_sg,
 	const unsigned int bytes_transferred,
 	const unsigned int bytes_to_transfer, unsigned int *out_num_sgs)
@@ -715,6 +717,55 @@ static struct scatterlist *wa_xfer_create_subset_sg(struct scatterlist *in_sg,
 	return out_sg;
 }
 
+/*
+ * Populate buffer ptr and size, DMA buffer or SG list for the dto urb.
+ */
+static int __wa_populate_dto_urb(struct wa_xfer *xfer,
+	struct wa_seg *seg, size_t buf_itr_offset, size_t buf_itr_size)
+{
+	int result = 0;
+
+	if (xfer->is_dma) {
+		seg->dto_urb->transfer_dma =
+			xfer->urb->transfer_dma + buf_itr_offset;
+		seg->dto_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+		seg->dto_urb->sg = NULL;
+		seg->dto_urb->num_sgs = 0;
+	} else {
+		/* do buffer or SG processing. */
+		seg->dto_urb->transfer_flags &=
+			~URB_NO_TRANSFER_DMA_MAP;
+		/* this should always be 0 before a resubmit. */
+		seg->dto_urb->num_mapped_sgs = 0;
+
+		if (xfer->urb->transfer_buffer) {
+			seg->dto_urb->transfer_buffer =
+				xfer->urb->transfer_buffer +
+				buf_itr_offset;
+			seg->dto_urb->sg = NULL;
+			seg->dto_urb->num_sgs = 0;
+		} else {
+			seg->dto_urb->transfer_buffer = NULL;
+
+			/*
+			 * allocate an SG list to store seg_size bytes
+			 * and copy the subset of the xfer->urb->sg that
+			 * matches the buffer subset we are about to
+			 * read.
+			 */
+			seg->dto_urb->sg = wa_xfer_create_subset_sg(
+				xfer->urb->sg,
+				buf_itr_offset, buf_itr_size,
+				&(seg->dto_urb->num_sgs));
+			if (!(seg->dto_urb->sg))
+				result = -ENOMEM;
+		}
+	}
+	seg->dto_urb->transfer_buffer_length = buf_itr_size;
+
+	return result;
+}
+
 /*
  * Allocate the segs array and initialize each of them
  *
@@ -762,48 +813,13 @@ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size)
 				usb_sndbulkpipe(usb_dev,
 						dto_epd->bEndpointAddress),
 				NULL, 0, wa_seg_dto_cb, seg);
-			if (xfer->is_dma) {
-				seg->dto_urb->transfer_dma =
-					xfer->urb->transfer_dma + buf_itr;
-				seg->dto_urb->transfer_flags |=
-					URB_NO_TRANSFER_DMA_MAP;
-				seg->dto_urb->transfer_buffer = NULL;
-				seg->dto_urb->sg = NULL;
-				seg->dto_urb->num_sgs = 0;
-			} else {
-				/* do buffer or SG processing. */
-				seg->dto_urb->transfer_flags &=
-					~URB_NO_TRANSFER_DMA_MAP;
-				/* this should always be 0 before a resubmit. */
-				seg->dto_urb->num_mapped_sgs = 0;
-
-				if (xfer->urb->transfer_buffer) {
-					seg->dto_urb->transfer_buffer =
-						xfer->urb->transfer_buffer +
-						buf_itr;
-					seg->dto_urb->sg = NULL;
-					seg->dto_urb->num_sgs = 0;
-				} else {
-					/* allocate an SG list to store seg_size
-					    bytes and copy the subset of the
-					    xfer->urb->sg that matches the
-					    buffer subset we are about to read.
-					*/
-					seg->dto_urb->sg =
-						wa_xfer_create_subset_sg(
-						xfer->urb->sg,
-						buf_itr, buf_itr_size,
-						&(seg->dto_urb->num_sgs));
-
-					if (!(seg->dto_urb->sg)) {
-						seg->dto_urb->num_sgs	= 0;
-						goto error_sg_alloc;
-					}
-
-					seg->dto_urb->transfer_buffer = NULL;
-				}
-			}
-			seg->dto_urb->transfer_buffer_length = buf_itr_size;
+
+			/* fill in the xfer buffer information. */
+			result = __wa_populate_dto_urb(xfer, seg,
+						buf_itr, buf_itr_size);
+
+			if (result < 0)
+				goto error_seg_outbound_populate;
 		}
 		seg->status = WA_SEG_READY;
 		buf_itr += buf_itr_size;
@@ -811,20 +827,17 @@ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size)
 	}
 	return 0;
 
-error_sg_alloc:
+	/*
+	 * Free the memory for the current segment which failed to init.
+	 * Use the fact that cnt is left at were it failed.  The remaining
+	 * segments will be cleaned up by wa_xfer_destroy.
+	 */
+error_seg_outbound_populate:
 	usb_free_urb(xfer->seg[cnt]->dto_urb);
 error_dto_alloc:
 	kfree(xfer->seg[cnt]);
-	cnt--;
+	xfer->seg[cnt] = NULL;
 error_seg_kmalloc:
-	/* use the fact that cnt is left at were it failed */
-	for (; cnt >= 0; cnt--) {
-		if (xfer->seg[cnt] && xfer->is_inbound == 0) {
-			usb_free_urb(xfer->seg[cnt]->dto_urb);
-			kfree(xfer->seg[cnt]->dto_urb->sg);
-		}
-		kfree(xfer->seg[cnt]);
-	}
 error_segs_kzalloc:
 	return result;
 }
-- 
cgit 


From d5b5c9f228bf15d134b0ac8d493b119417f5f9e9 Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Thu, 26 Sep 2013 14:08:15 -0500
Subject: usb: wusbcore: clean up the sg list that was created for out
 transfers

Clean up the SG list after transfer completetion for out transfers if one
was created by the HWA.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/wa-xfer.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index f614fb1ed77f..61b0597c399b 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -520,6 +520,10 @@ static void wa_seg_dto_cb(struct urb *urb)
 	unsigned rpipe_ready = 0;
 	u8 done = 0;
 
+	/* free the sg if it was used. */
+	kfree(urb->sg);
+	urb->sg = NULL;
+
 	switch (urb->status) {
 	case 0:
 		spin_lock_irqsave(&xfer->lock, flags);
-- 
cgit 


From 6741448eb01a1844b78c83fa8faf0c95524fc09b Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Thu, 26 Sep 2013 14:08:16 -0500
Subject: usb: wusbcore: set pointers to NULL after freeing in error cases

This patch fixes two cases where error handling code was freeing memory
but not setting the pointer to NULL.  This could lead to a double free
in the HWA shutdown code.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/wa-xfer.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index 61b0597c399b..0b27146b5bc1 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -1560,6 +1560,7 @@ error_submit_buf_in:
 			xfer, seg_idx, result);
 	seg->result = result;
 	kfree(wa->buf_in_urb->sg);
+	wa->buf_in_urb->sg = NULL;
 error_sg_alloc:
 	__wa_xfer_abort(xfer);
 error_complete:
@@ -1859,6 +1860,7 @@ out:
 
 error_dti_urb_submit:
 	usb_put_urb(wa->buf_in_urb);
+	wa->buf_in_urb = NULL;
 error_buf_in_urb_alloc:
 	usb_put_urb(wa->dti_urb);
 	wa->dti_urb = NULL;
-- 
cgit 


From 33b06938cf81939135448ed448ee5aa95fa86d04 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 17 Sep 2013 00:58:36 +0300
Subject: hv: vmbus: fix vmbus_recvpacket_raw() return code

Don't return success if the buffer has not been initialized.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hv/channel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 94d54591b226..cea623c36ae2 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -811,6 +811,6 @@ int vmbus_recvpacket_raw(struct vmbus_channel *channel, void *buffer,
 	if (signal)
 		vmbus_setevent(channel);
 
-	return 0;
+	return ret;
 }
 EXPORT_SYMBOL_GPL(vmbus_recvpacket_raw);
-- 
cgit 


From 48c8cd291cf74a5673834790bedf135d97404f89 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Thu, 26 Sep 2013 10:28:28 -0700
Subject: staging: comedi: Kconfig: COMEDI_NI_ATMIO should select COMEDI_FC

As pointed out by the kbuild test robot, the ni_atmio driver includes
ni_mio_common.c which uses the helper functions in the comedi_fc module.

Select the COMEDI_FC module when COMEDI_NI_ATMIO is enabled to fix the
following build error:

ERROR: "cfc_write_array_to_buffer" [drivers/staging/comedi/drivers/ni_atmio.ko] undefined!

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig
index f73287eab373..24f3cf273e5b 100644
--- a/drivers/staging/comedi/Kconfig
+++ b/drivers/staging/comedi/Kconfig
@@ -485,6 +485,7 @@ config COMEDI_NI_ATMIO
 	tristate "NI AT-MIO E series ISA-PNP card support"
 	select COMEDI_8255
 	select COMEDI_NI_TIO
+	select COMEDI_FC
 	---help---
 	  Enable support for National Instruments AT-MIO E series cards
 	  National Instruments AT-MIO-16E-1 (ni_atmio),
-- 
cgit 


From 3389c99eb80d3d265b60a6b9822792b15aa14758 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Thu, 26 Sep 2013 10:29:20 -0700
Subject: staging: comedi: dt2801: fix using uninitialized variable warnings

As pointed out by Fengguang Wu, the calls to dt2801_readdata() return the
data read thru a pointer (the address of a local variable) passed as a
parameter. If this local variable is not initialized it produces a warning
during the build of the form:

drivers/staging/comedi/drivers/dt2801.c: In function 'dt2801_ai_insn_read':
drivers/staging/comedi/drivers/dt2801.c:273:14: warning: 'hb' is used
      uninitialized in this function [-Wuninitialized]

Fix these warning by making sure the local variables are initialized.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/dt2801.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/dt2801.c b/drivers/staging/comedi/drivers/dt2801.c
index 1a2b0e4b1ea5..811c8c59c017 100644
--- a/drivers/staging/comedi/drivers/dt2801.c
+++ b/drivers/staging/comedi/drivers/dt2801.c
@@ -260,7 +260,8 @@ static int dt2801_readdata(struct comedi_device *dev, int *data)
 
 static int dt2801_readdata2(struct comedi_device *dev, int *data)
 {
-	int lb, hb;
+	int lb = 0;
+	int hb = 0;
 	int ret;
 
 	ret = dt2801_readdata(dev, &lb);
@@ -532,7 +533,7 @@ static int dt2801_dio_insn_bits(struct comedi_device *dev,
 				unsigned int *data)
 {
 	int which = (s == &dev->subdevices[3]) ? 1 : 0;
-	unsigned int val;
+	unsigned int val = 0;
 
 	if (comedi_dio_update_state(s, data)) {
 		dt2801_writecmd(dev, DT_C_WRITE_DIG);
-- 
cgit 


From 57225184e465b1c78d3d7477da06d7ee3d173ea1 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Thu, 26 Sep 2013 10:26:42 -0700
Subject: staging: comedi: pcl726: rename interrupt (async cmd) support
 functions

Rename these functions so they have namespace associated with the driver.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl726.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl726.c b/drivers/staging/comedi/drivers/pcl726.c
index 152f1db6b8ae..cf9568ee46e4 100644
--- a/drivers/staging/comedi/drivers/pcl726.c
+++ b/drivers/staging/comedi/drivers/pcl726.c
@@ -160,7 +160,7 @@ struct pcl726_private {
 	unsigned int cmd_running:1;
 };
 
-static int pcl818_intr_insn_bits(struct comedi_device *dev,
+static int pcl726_intr_insn_bits(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
 				 struct comedi_insn *insn,
 				 unsigned int *data)
@@ -169,7 +169,7 @@ static int pcl818_intr_insn_bits(struct comedi_device *dev,
 	return insn->n;
 }
 
-static int pcl818_intr_cmdtest(struct comedi_device *dev,
+static int pcl726_intr_cmdtest(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       struct comedi_cmd *cmd)
 {
@@ -211,7 +211,7 @@ static int pcl818_intr_cmdtest(struct comedi_device *dev,
 	return 0;
 }
 
-static int pcl818_intr_cmd(struct comedi_device *dev,
+static int pcl726_intr_cmd(struct comedi_device *dev,
 			   struct comedi_subdevice *s)
 {
 	struct pcl726_private *devpriv = dev->private;
@@ -221,7 +221,7 @@ static int pcl818_intr_cmd(struct comedi_device *dev,
 	return 0;
 }
 
-static int pcl818_intr_cancel(struct comedi_device *dev,
+static int pcl726_intr_cancel(struct comedi_device *dev,
 			      struct comedi_subdevice *s)
 {
 	struct pcl726_private *devpriv = dev->private;
@@ -231,14 +231,14 @@ static int pcl818_intr_cancel(struct comedi_device *dev,
 	return 0;
 }
 
-static irqreturn_t pcl818_interrupt(int irq, void *d)
+static irqreturn_t pcl726_interrupt(int irq, void *d)
 {
 	struct comedi_device *dev = d;
 	struct comedi_subdevice *s = dev->read_subdev;
 	struct pcl726_private *devpriv = dev->private;
 
 	if (devpriv->cmd_running) {
-		pcl818_intr_cancel(dev, s);
+		pcl726_intr_cancel(dev, s);
 
 		comedi_buf_put(s->async, 0);
 		s->async->events |= (COMEDI_CB_BLOCK | COMEDI_CB_EOS);
@@ -363,7 +363,7 @@ static int pcl726_attach(struct comedi_device *dev,
 	 * user config option is valid and the board supports interrupts.
 	 */
 	if (it->options[1] && (board->irq_mask & (1 << it->options[1]))) {
-		ret = request_irq(it->options[1], pcl818_interrupt, 0,
+		ret = request_irq(it->options[1], pcl726_interrupt, 0,
 				  dev->board_name, dev);
 		if (ret == 0) {
 			/* External trigger source is from Pin-17 of CN3 */
@@ -429,10 +429,10 @@ static int pcl726_attach(struct comedi_device *dev,
 		s->n_chan	= 1;
 		s->maxdata	= 1;
 		s->range_table	= &range_digital;
-		s->insn_bits	= pcl818_intr_insn_bits;
-		s->do_cmdtest	= pcl818_intr_cmdtest;
-		s->do_cmd	= pcl818_intr_cmd;
-		s->cancel	= pcl818_intr_cancel;
+		s->insn_bits	= pcl726_intr_insn_bits;
+		s->do_cmdtest	= pcl726_intr_cmdtest;
+		s->do_cmd	= pcl726_intr_cmd;
+		s->cancel	= pcl726_intr_cancel;
 	}
 
 	return 0;
-- 
cgit 


From 9e38a5c1051f4b3593dd2aa6fe74a939569a61fd Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Thu, 26 Sep 2013 18:47:25 +0100
Subject: staging: vt6656: rxtx.c Create union of struct vnt_rrv_time*
 stuctures

Attach union vnt_tx_head to structure vnt_tx_buffer replacing pointer
pvRrvTime.

In s_vGenerateTxParameter the relevant struct vnt_rrv_time_*
structure is attached to the vnt_tx_head.

The NULL check is now pFifoHead.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/rxtx.c | 72 +++++++++++++++----------------------------
 drivers/staging/vt6656/rxtx.h |  7 +++++
 2 files changed, 32 insertions(+), 47 deletions(-)

diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index 2a9deb6273fc..7b05ee8b702c 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -100,8 +100,8 @@ static void *s_vGetFreeContext(struct vnt_private *pDevice);
 
 static void s_vGenerateTxParameter(struct vnt_private *pDevice,
 	u8 byPktType, u16 wCurrentRate,	struct vnt_tx_buffer *tx_buffer,
-	void *pvRrvTime, void *rts_cts, u32 cbFrameSize, int bNeedACK,
-	u32 uDMAIdx, struct ethhdr *psEthHeader, bool need_rts);
+	void *rts_cts, u32 cbFrameSize, int bNeedACK, u32 uDMAIdx,
+	struct ethhdr *psEthHeader, bool need_rts);
 
 static u32 s_uFillDataHead(struct vnt_private *pDevice,
 	u8 byPktType, u16 wCurrentRate, void *pTxDataHead, u32 cbFrameLength,
@@ -841,8 +841,8 @@ static void s_vFillCTSHead(struct vnt_private *pDevice, u32 uDMAIdx,
 
 static void s_vGenerateTxParameter(struct vnt_private *pDevice,
 	u8 byPktType, u16 wCurrentRate,	struct vnt_tx_buffer *tx_buffer,
-	void *pvRrvTime, void *rts_cts, u32 cbFrameSize, int bNeedACK,
-	u32 uDMAIdx, struct ethhdr *psEthHeader, bool need_rts)
+	void *rts_cts, u32 cbFrameSize, int bNeedACK, u32 uDMAIdx,
+	struct ethhdr *psEthHeader, bool need_rts)
 {
 	struct vnt_tx_fifo_head *pFifoHead = &tx_buffer->fifo_head;
 	union vnt_tx_data_head *head = rts_cts;
@@ -861,7 +861,7 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
         byFBOption = AUTO_FB_1;
     }
 
-	if (!pvRrvTime)
+	if (!pFifoHead)
 		return;
 
     if (pDevice->bLongHeader)
@@ -870,8 +870,8 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
     if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
 	if (need_rts) {
             //Fill RsvTime
-		struct vnt_rrv_time_rts *pBuf =
-			(struct vnt_rrv_time_rts *)pvRrvTime;
+		struct vnt_rrv_time_rts *pBuf = &tx_buffer->tx_head.rts;
+
 		pBuf->wRTSTxRrvTime_aa = s_uGetRTSCTSRsvTime(pDevice, 2,
 				byPktType, cbFrameSize, wCurrentRate);
 		pBuf->wRTSTxRrvTime_ba = s_uGetRTSCTSRsvTime(pDevice, 1,
@@ -889,8 +889,8 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
         }
         else {//RTS_needless, PCF mode
             //Fill RsvTime
-		struct vnt_rrv_time_cts *pBuf =
-				(struct vnt_rrv_time_cts *)pvRrvTime;
+		struct vnt_rrv_time_cts *pBuf = &tx_buffer->tx_head.cts;
+
 		pBuf->wTxRrvTime_a = vnt_rxtx_rsvtime_le16(pDevice, byPktType,
 			cbFrameSize, wCurrentRate, bNeedACK);
 		pBuf->wTxRrvTime_b = vnt_rxtx_rsvtime_le16(pDevice,
@@ -906,8 +906,8 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
     else if (byPktType == PK_TYPE_11A) {
 	if (need_rts) {
             //Fill RsvTime
-		struct vnt_rrv_time_ab *pBuf =
-				(struct vnt_rrv_time_ab *)pvRrvTime;
+		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.ab;
+
 		pBuf->wRTSTxRrvTime = s_uGetRTSCTSRsvTime(pDevice, 2,
 				byPktType, cbFrameSize, wCurrentRate);
 		pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice, byPktType,
@@ -917,8 +917,8 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
 			bNeedACK, psEthHeader, wCurrentRate, byFBOption);
 	} else {
             //Fill RsvTime
-		struct vnt_rrv_time_ab *pBuf =
-				(struct vnt_rrv_time_ab *)pvRrvTime;
+		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.ab;
+
 		pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11A,
 			cbFrameSize, wCurrentRate, bNeedACK);
         }
@@ -926,8 +926,8 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
     else if (byPktType == PK_TYPE_11B) {
 	if (need_rts) {
             //Fill RsvTime
-		struct vnt_rrv_time_ab *pBuf =
-				(struct vnt_rrv_time_ab *)pvRrvTime;
+		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.ab;
+
 		pBuf->wRTSTxRrvTime = s_uGetRTSCTSRsvTime(pDevice, 0,
 				byPktType, cbFrameSize, wCurrentRate);
 		pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B,
@@ -938,8 +938,8 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
         }
         else { //RTS_needless, non PCF mode
             //Fill RsvTime
-		struct vnt_rrv_time_ab *pBuf =
-				(struct vnt_rrv_time_ab *)pvRrvTime;
+		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.ab;
+
 		pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B,
 			cbFrameSize, wCurrentRate, bNeedACK);
         }
@@ -972,7 +972,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 		= {0xAA, 0xAA, 0x03, 0x00, 0x00, 0xF8};
 	u32 uDuration;
 	u32 cbHeaderLength = 0, uPadding = 0;
-	void *pvRrvTime;
 	struct vnt_mic_hdr *pMICHDR;
 	void *rts_cts = NULL;
 	void *pvTxDataHd;
@@ -981,7 +980,8 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 	u32 dwMICKey0, dwMICKey1, dwMIC_Priority;
 	u32 *pdwMIC_L, *pdwMIC_R;
 	int bSoftWEP = false;
-	pvRrvTime = pMICHDR = pvTxDataHd = NULL;
+
+	pMICHDR = pvTxDataHd = NULL;
 
 	if (bNeedEncryption && pTransmitKey->pvKeyTable) {
 		if (((PSKeyTable)pTransmitKey->pvKeyTable)->bSoftWEP == true)
@@ -1108,8 +1108,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
     if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
         if (byFBOption == AUTO_FB_NONE) {
             if (bRTS == true) {//RTS_need
-		pvRrvTime = (struct vnt_rrv_time_rts *)
-					(pbyTxBufferAddr + wTxBufSize);
 		pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize +
 					sizeof(struct vnt_rrv_time_rts));
 		rts_cts = (struct vnt_rts_g *) (pbyTxBufferAddr + wTxBufSize +
@@ -1122,8 +1120,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 				sizeof(struct vnt_tx_datahead_g);
             }
             else { //RTS_needless
-		pvRrvTime = (struct vnt_rrv_time_cts *)
-				(pbyTxBufferAddr + wTxBufSize);
 		pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize +
 			sizeof(struct vnt_rrv_time_cts));
 		rts_cts = (struct vnt_cts *) (pbyTxBufferAddr + wTxBufSize +
@@ -1138,8 +1134,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
         } else {
             // Auto Fall Back
             if (bRTS == true) {//RTS_need
-		pvRrvTime = (struct vnt_rrv_time_rts *)(pbyTxBufferAddr +
-								wTxBufSize);
 		pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize +
 					sizeof(struct vnt_rrv_time_rts));
 		rts_cts = (struct vnt_rts_g_fb *)(pbyTxBufferAddr + wTxBufSize +
@@ -1152,8 +1146,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 				sizeof(struct vnt_tx_datahead_g_fb);
             }
             else if (bRTS == false) { //RTS_needless
-		pvRrvTime = (struct vnt_rrv_time_cts *)
-				(pbyTxBufferAddr + wTxBufSize);
 		pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize +
 				sizeof(struct vnt_rrv_time_cts));
 		rts_cts = (struct vnt_cts_fb *) (pbyTxBufferAddr + wTxBufSize +
@@ -1170,8 +1162,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
     else {//802.11a/b packet
         if (byFBOption == AUTO_FB_NONE) {
             if (bRTS == true) {//RTS_need
-		pvRrvTime = (struct vnt_rrv_time_ab *) (pbyTxBufferAddr +
-								wTxBufSize);
 		pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize +
 						sizeof(struct vnt_rrv_time_ab));
 		rts_cts = (struct vnt_rts_ab *) (pbyTxBufferAddr + wTxBufSize +
@@ -1184,8 +1174,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 				sizeof(struct vnt_tx_datahead_ab);
             }
             else if (bRTS == false) { //RTS_needless, no MICHDR
-		pvRrvTime = (struct vnt_rrv_time_ab *)(pbyTxBufferAddr +
-								wTxBufSize);
 		pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize +
 						sizeof(struct vnt_rrv_time_ab));
 		pvTxDataHd = (struct vnt_tx_datahead_ab *)(pbyTxBufferAddr +
@@ -1196,8 +1184,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
         } else {
             // Auto Fall Back
             if (bRTS == true) {//RTS_need
-		pvRrvTime = (struct vnt_rrv_time_ab *)(pbyTxBufferAddr +
-						wTxBufSize);
 		pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize +
 			sizeof(struct vnt_rrv_time_ab));
 		rts_cts = (struct vnt_rts_a_fb *)(pbyTxBufferAddr + wTxBufSize +
@@ -1210,8 +1196,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 					sizeof(struct vnt_tx_datahead_a_fb);
             }
             else if (bRTS == false) { //RTS_needless
-		pvRrvTime = (struct vnt_rrv_time_ab *)(pbyTxBufferAddr +
-								wTxBufSize);
 		pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize +
 						sizeof(struct vnt_rrv_time_ab));
 		pvTxDataHd = (struct vnt_tx_datahead_a_fb *)(pbyTxBufferAddr +
@@ -1236,7 +1220,7 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 
     //Fill FIFO,RrvTime,RTS,and CTS
     s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
-		tx_buffer, pvRrvTime, rts_cts,
+		tx_buffer, rts_cts,
 		cbFrameSize, bNeedACK, uDMAIdx, psEthHeader, bRTS);
     //Fill DataHead
     uDuration = s_uFillDataHead(pDevice, byPktType, wCurrentRate, pvTxDataHd, cbFrameSize, uDMAIdx, bNeedACK,
@@ -1474,7 +1458,7 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
 	struct ethhdr sEthHeader;
 	u8 byPktType, *pbyTxBufferAddr;
 	void *rts_cts = NULL;
-	void *pvTxDataHd, *pvRrvTime, *pMICHDR;
+	void *pvTxDataHd, *pMICHDR;
 	u32 uDuration, cbReqCount, cbHeaderSize, cbFrameBodySize, cbFrameSize;
 	int bNeedACK, bIsPSPOLL = false;
 	u32 cbIVlen = 0, cbICVlen = 0, cbMIClen = 0, cbFCSlen = 4;
@@ -1606,8 +1590,6 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
 
     //Set RrvTime/RTS/CTS Buffer
     if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
-
-	pvRrvTime = (struct vnt_rrv_time_cts *) (pbyTxBufferAddr + wTxBufSize);
         pMICHDR = NULL;
 	rts_cts = (struct vnt_cts *) (pbyTxBufferAddr + wTxBufSize +
 					sizeof(struct vnt_rrv_time_cts));
@@ -1617,7 +1599,6 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
 		sizeof(struct vnt_cts) + sizeof(struct vnt_tx_datahead_g);
     }
     else { // 802.11a/b packet
-	pvRrvTime = (struct vnt_rrv_time_ab *) (pbyTxBufferAddr + wTxBufSize);
         pMICHDR = NULL;
 	pvTxDataHd = (struct vnt_tx_datahead_ab *) (pbyTxBufferAddr +
 		wTxBufSize + sizeof(struct vnt_rrv_time_ab));
@@ -1638,7 +1619,7 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
 
 	/* Fill FIFO,RrvTime,RTS,and CTS */
 	s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
-		pTX_Buffer, pvRrvTime, rts_cts,
+		pTX_Buffer, rts_cts,
 		cbFrameSize, bNeedACK, TYPE_TXDMA0, &sEthHeader, false);
 
     //Fill DataHead
@@ -1847,7 +1828,7 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
 	u16 wTxBufSize;
 	u32 cbMacHdLen;
 	struct ethhdr sEthHeader;
-	void *pvRrvTime, *pMICHDR;
+	void *pMICHDR;
 	u32 wCurrentRate = RATE_1M;
 	PUWLAN_80211HDR  p80211Header;
 	u32 uNodeIndex = 0;
@@ -1858,7 +1839,7 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
 	u32 cbExtSuppRate = 0;
 	struct vnt_usb_send_context *pContext;
 
-	pvRrvTime = pMICHDR = pvTxDataHd = NULL;
+	pMICHDR = pvTxDataHd = NULL;
 
     if(skb->len <= WLAN_HDR_ADDR3_LEN) {
        cbFrameBodySize = 0;
@@ -2017,7 +1998,6 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
     //the rest of pTxBufHead->wFragCtl:FragTyp will be set later in s_vFillFragParameter()
 
     if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
-	pvRrvTime = (struct vnt_rrv_time_cts *) (pbyTxBufferAddr + wTxBufSize);
 	pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize +
 					sizeof(struct vnt_rrv_time_cts));
 	rts_cts = (struct vnt_cts *) (pbyTxBufferAddr + wTxBufSize +
@@ -2030,8 +2010,6 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
 
     }
     else {//802.11a/b packet
-
-	pvRrvTime = (struct vnt_rrv_time_ab *) (pbyTxBufferAddr + wTxBufSize);
 	pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize +
 		sizeof(struct vnt_rrv_time_ab));
 	pvTxDataHd = (struct vnt_tx_datahead_ab *)(pbyTxBufferAddr +
@@ -2052,7 +2030,7 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
 
 	/* Fill FIFO,RrvTime,RTS,and CTS */
 	s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
-		pTX_Buffer, pvRrvTime, rts_cts,
+		pTX_Buffer, rts_cts,
 		cbFrameSize, bNeedACK, TYPE_TXDMA0, &sEthHeader, false);
 
     //Fill DataHead
diff --git a/drivers/staging/vt6656/rxtx.h b/drivers/staging/vt6656/rxtx.h
index 137e62d47472..78b7b749ef96 100644
--- a/drivers/staging/vt6656/rxtx.h
+++ b/drivers/staging/vt6656/rxtx.h
@@ -180,6 +180,12 @@ union vnt_tx_data_head {
 	struct vnt_cts_fb cts_g_fb;
 };
 
+union vnt_tx_head {
+	struct vnt_rrv_time_rts rts;
+	struct vnt_rrv_time_cts cts;
+	struct vnt_rrv_time_ab ab;
+};
+
 struct vnt_tx_fifo_head {
 	u32 adwTxKey[4];
 	u16 wFIFOCtl;
@@ -193,6 +199,7 @@ struct vnt_tx_buffer {
 	u8 byPKTNO;
 	u16 wTxByteCount;
 	struct vnt_tx_fifo_head fifo_head;
+	union vnt_tx_head tx_head;
 } __packed;
 
 struct vnt_beacon_buffer {
-- 
cgit 


From 56c60e4f1c6bb804cb5745f20405bac38ac471ed Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Thu, 26 Sep 2013 18:49:44 +0100
Subject: staging: vt6656: rxtx.c create structure to join vnt_tx_data_head
 with vnt_tx_head.

Create struct vnt_tx_mic_hdr for with union vnt_tx_data_head
for mic mode.

Create union vnt_tx for mic and non mic mode.

Attach vnt_rrv_time_* to relevant tx_head.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/rxtx.c | 12 ++++++------
 drivers/staging/vt6656/rxtx.h | 25 ++++++++++++++++++++++---
 2 files changed, 28 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index 7b05ee8b702c..c80a809d4a41 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -870,7 +870,7 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
     if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
 	if (need_rts) {
             //Fill RsvTime
-		struct vnt_rrv_time_rts *pBuf = &tx_buffer->tx_head.rts;
+		struct vnt_rrv_time_rts *pBuf = &tx_buffer->tx_head.tx_rts.rts;
 
 		pBuf->wRTSTxRrvTime_aa = s_uGetRTSCTSRsvTime(pDevice, 2,
 				byPktType, cbFrameSize, wCurrentRate);
@@ -889,7 +889,7 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
         }
         else {//RTS_needless, PCF mode
             //Fill RsvTime
-		struct vnt_rrv_time_cts *pBuf = &tx_buffer->tx_head.cts;
+		struct vnt_rrv_time_cts *pBuf = &tx_buffer->tx_head.tx_cts.cts;
 
 		pBuf->wTxRrvTime_a = vnt_rxtx_rsvtime_le16(pDevice, byPktType,
 			cbFrameSize, wCurrentRate, bNeedACK);
@@ -906,7 +906,7 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
     else if (byPktType == PK_TYPE_11A) {
 	if (need_rts) {
             //Fill RsvTime
-		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.ab;
+		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.tx_ab.ab;
 
 		pBuf->wRTSTxRrvTime = s_uGetRTSCTSRsvTime(pDevice, 2,
 				byPktType, cbFrameSize, wCurrentRate);
@@ -917,7 +917,7 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
 			bNeedACK, psEthHeader, wCurrentRate, byFBOption);
 	} else {
             //Fill RsvTime
-		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.ab;
+		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.tx_ab.ab;
 
 		pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11A,
 			cbFrameSize, wCurrentRate, bNeedACK);
@@ -926,7 +926,7 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
     else if (byPktType == PK_TYPE_11B) {
 	if (need_rts) {
             //Fill RsvTime
-		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.ab;
+		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.tx_ab.ab;
 
 		pBuf->wRTSTxRrvTime = s_uGetRTSCTSRsvTime(pDevice, 0,
 				byPktType, cbFrameSize, wCurrentRate);
@@ -938,7 +938,7 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
         }
         else { //RTS_needless, non PCF mode
             //Fill RsvTime
-		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.ab;
+		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.tx_ab.ab;
 
 		pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B,
 			cbFrameSize, wCurrentRate, bNeedACK);
diff --git a/drivers/staging/vt6656/rxtx.h b/drivers/staging/vt6656/rxtx.h
index 78b7b749ef96..bbda9a3a83c0 100644
--- a/drivers/staging/vt6656/rxtx.h
+++ b/drivers/staging/vt6656/rxtx.h
@@ -180,10 +180,29 @@ union vnt_tx_data_head {
 	struct vnt_cts_fb cts_g_fb;
 };
 
+struct vnt_tx_mic_hdr {
+	struct vnt_mic_hdr hdr;
+	union vnt_tx_data_head head;
+} __packed;
+
+union vnt_tx {
+	struct vnt_tx_mic_hdr mic;
+	union vnt_tx_data_head head;
+};
+
 union vnt_tx_head {
-	struct vnt_rrv_time_rts rts;
-	struct vnt_rrv_time_cts cts;
-	struct vnt_rrv_time_ab ab;
+	struct {
+		struct vnt_rrv_time_rts rts;
+		union vnt_tx tx;
+	} __packed tx_rts;
+	struct {
+		struct vnt_rrv_time_cts cts;
+		union vnt_tx tx;
+	} __packed tx_cts;
+	struct {
+		struct vnt_rrv_time_ab ab;
+		union vnt_tx tx;
+	} __packed tx_ab;
 };
 
 struct vnt_tx_fifo_head {
-- 
cgit 


From f0e0d5051cccfc8ccfae02a40012c1a35c25c05a Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Thu, 26 Sep 2013 18:52:10 +0100
Subject: staging: vt6656: rxtx.c s_vGenerateTxParameter Create vnt_mic_hdr
 structure

Create double pointer to pass back vnt_mic_hdr address position
of relevant structure if need_mic is more than 0. Otherwise it
is NULL.

This replaces the pMICHDR void pointer with struct vnt_mic_hdr
and assignments in the calling functions.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/rxtx.c | 55 ++++++++++++++++++++++---------------------
 1 file changed, 28 insertions(+), 27 deletions(-)

diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index c80a809d4a41..7002b5d1734b 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -100,6 +100,7 @@ static void *s_vGetFreeContext(struct vnt_private *pDevice);
 
 static void s_vGenerateTxParameter(struct vnt_private *pDevice,
 	u8 byPktType, u16 wCurrentRate,	struct vnt_tx_buffer *tx_buffer,
+	struct vnt_mic_hdr **mic_hdr, u32 need_mic,
 	void *rts_cts, u32 cbFrameSize, int bNeedACK, u32 uDMAIdx,
 	struct ethhdr *psEthHeader, bool need_rts);
 
@@ -841,6 +842,7 @@ static void s_vFillCTSHead(struct vnt_private *pDevice, u32 uDMAIdx,
 
 static void s_vGenerateTxParameter(struct vnt_private *pDevice,
 	u8 byPktType, u16 wCurrentRate,	struct vnt_tx_buffer *tx_buffer,
+	struct vnt_mic_hdr **mic_hdr, u32 need_mic,
 	void *rts_cts, u32 cbFrameSize, int bNeedACK, u32 uDMAIdx,
 	struct ethhdr *psEthHeader, bool need_rts)
 {
@@ -883,6 +885,9 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
 		pBuf->wTxRrvTime_b = vnt_rxtx_rsvtime_le16(pDevice,
 			PK_TYPE_11B, cbFrameSize, pDevice->byTopCCKBasicRate,
 				bNeedACK);
+		if (need_mic)
+			*mic_hdr = &tx_buffer->tx_head.tx_rts.tx.mic.hdr;
+
 		/* Fill RTS */
 		s_vFillRTSHead(pDevice, byPktType, head, cbFrameSize,
 			bNeedACK, psEthHeader, wCurrentRate, byFBOption);
@@ -898,6 +903,10 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
 			pDevice->byTopCCKBasicRate, bNeedACK);
 		pBuf->wCTSTxRrvTime_ba = s_uGetRTSCTSRsvTime(pDevice, 3,
 				byPktType, cbFrameSize, wCurrentRate);
+
+		if (need_mic)
+			*mic_hdr = &tx_buffer->tx_head.tx_cts.tx.mic.hdr;
+
 		/* Fill CTS */
 		s_vFillCTSHead(pDevice, uDMAIdx, byPktType, head,
 			cbFrameSize, bNeedACK, wCurrentRate, byFBOption);
@@ -912,6 +921,9 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
 				byPktType, cbFrameSize, wCurrentRate);
 		pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice, byPktType,
 				cbFrameSize, wCurrentRate, bNeedACK);
+		if (need_mic)
+			*mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
+
 		/* Fill RTS */
 		s_vFillRTSHead(pDevice, byPktType, head, cbFrameSize,
 			bNeedACK, psEthHeader, wCurrentRate, byFBOption);
@@ -919,6 +931,9 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
             //Fill RsvTime
 		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.tx_ab.ab;
 
+		if (need_mic)
+			*mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
+
 		pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11A,
 			cbFrameSize, wCurrentRate, bNeedACK);
         }
@@ -932,6 +947,10 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
 				byPktType, cbFrameSize, wCurrentRate);
 		pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B,
 				cbFrameSize, wCurrentRate, bNeedACK);
+
+		if (need_mic)
+			*mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
+
 		/* Fill RTS */
 		s_vFillRTSHead(pDevice, byPktType, head, cbFrameSize,
 			bNeedACK, psEthHeader, wCurrentRate, byFBOption);
@@ -940,6 +959,9 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
             //Fill RsvTime
 		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.tx_ab.ab;
 
+		if (need_mic)
+			*mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
+
 		pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B,
 			cbFrameSize, wCurrentRate, bNeedACK);
         }
@@ -1108,8 +1130,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
     if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
         if (byFBOption == AUTO_FB_NONE) {
             if (bRTS == true) {//RTS_need
-		pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize +
-					sizeof(struct vnt_rrv_time_rts));
 		rts_cts = (struct vnt_rts_g *) (pbyTxBufferAddr + wTxBufSize +
 				sizeof(struct vnt_rrv_time_rts) + cbMICHDR);
 		pvTxDataHd = (struct vnt_tx_datahead_g *) (pbyTxBufferAddr +
@@ -1120,8 +1140,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 				sizeof(struct vnt_tx_datahead_g);
             }
             else { //RTS_needless
-		pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize +
-			sizeof(struct vnt_rrv_time_cts));
 		rts_cts = (struct vnt_cts *) (pbyTxBufferAddr + wTxBufSize +
 				sizeof(struct vnt_rrv_time_cts) + cbMICHDR);
 		pvTxDataHd = (struct vnt_tx_datahead_g *)(pbyTxBufferAddr +
@@ -1134,8 +1152,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
         } else {
             // Auto Fall Back
             if (bRTS == true) {//RTS_need
-		pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize +
-					sizeof(struct vnt_rrv_time_rts));
 		rts_cts = (struct vnt_rts_g_fb *)(pbyTxBufferAddr + wTxBufSize +
 				sizeof(struct vnt_rrv_time_rts) + cbMICHDR);
 		pvTxDataHd = (struct vnt_tx_datahead_g_fb *) (pbyTxBufferAddr +
@@ -1146,8 +1162,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 				sizeof(struct vnt_tx_datahead_g_fb);
             }
             else if (bRTS == false) { //RTS_needless
-		pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize +
-				sizeof(struct vnt_rrv_time_cts));
 		rts_cts = (struct vnt_cts_fb *) (pbyTxBufferAddr + wTxBufSize +
 			sizeof(struct vnt_rrv_time_cts) + cbMICHDR);
 		pvTxDataHd = (struct vnt_tx_datahead_g_fb *) (pbyTxBufferAddr +
@@ -1162,8 +1176,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
     else {//802.11a/b packet
         if (byFBOption == AUTO_FB_NONE) {
             if (bRTS == true) {//RTS_need
-		pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize +
-						sizeof(struct vnt_rrv_time_ab));
 		rts_cts = (struct vnt_rts_ab *) (pbyTxBufferAddr + wTxBufSize +
 				sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
 		pvTxDataHd = (struct vnt_tx_datahead_ab *)(pbyTxBufferAddr +
@@ -1174,8 +1186,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 				sizeof(struct vnt_tx_datahead_ab);
             }
             else if (bRTS == false) { //RTS_needless, no MICHDR
-		pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize +
-						sizeof(struct vnt_rrv_time_ab));
 		pvTxDataHd = (struct vnt_tx_datahead_ab *)(pbyTxBufferAddr +
 			wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
 		cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
@@ -1184,8 +1194,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
         } else {
             // Auto Fall Back
             if (bRTS == true) {//RTS_need
-		pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize +
-			sizeof(struct vnt_rrv_time_ab));
 		rts_cts = (struct vnt_rts_a_fb *)(pbyTxBufferAddr + wTxBufSize +
 				sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
 		pvTxDataHd = (struct vnt_tx_datahead_a_fb *)(pbyTxBufferAddr +
@@ -1196,8 +1204,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 					sizeof(struct vnt_tx_datahead_a_fb);
             }
             else if (bRTS == false) { //RTS_needless
-		pMICHDR = (struct vnt_mic_hdr *)(pbyTxBufferAddr + wTxBufSize +
-						sizeof(struct vnt_rrv_time_ab));
 		pvTxDataHd = (struct vnt_tx_datahead_a_fb *)(pbyTxBufferAddr +
 			wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
 		cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
@@ -1220,7 +1226,7 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 
     //Fill FIFO,RrvTime,RTS,and CTS
     s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
-		tx_buffer, rts_cts,
+		tx_buffer, &pMICHDR, cbMICHDR, rts_cts,
 		cbFrameSize, bNeedACK, uDMAIdx, psEthHeader, bRTS);
     //Fill DataHead
     uDuration = s_uFillDataHead(pDevice, byPktType, wCurrentRate, pvTxDataHd, cbFrameSize, uDMAIdx, bNeedACK,
@@ -1458,7 +1464,8 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
 	struct ethhdr sEthHeader;
 	u8 byPktType, *pbyTxBufferAddr;
 	void *rts_cts = NULL;
-	void *pvTxDataHd, *pMICHDR;
+	void *pvTxDataHd;
+	struct vnt_mic_hdr *pMICHDR = NULL;
 	u32 uDuration, cbReqCount, cbHeaderSize, cbFrameBodySize, cbFrameSize;
 	int bNeedACK, bIsPSPOLL = false;
 	u32 cbIVlen = 0, cbICVlen = 0, cbMIClen = 0, cbFCSlen = 4;
@@ -1590,7 +1597,6 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
 
     //Set RrvTime/RTS/CTS Buffer
     if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
-        pMICHDR = NULL;
 	rts_cts = (struct vnt_cts *) (pbyTxBufferAddr + wTxBufSize +
 					sizeof(struct vnt_rrv_time_cts));
 	pvTxDataHd = (struct vnt_tx_datahead_g *)(pbyTxBufferAddr + wTxBufSize +
@@ -1599,7 +1605,6 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
 		sizeof(struct vnt_cts) + sizeof(struct vnt_tx_datahead_g);
     }
     else { // 802.11a/b packet
-        pMICHDR = NULL;
 	pvTxDataHd = (struct vnt_tx_datahead_ab *) (pbyTxBufferAddr +
 		wTxBufSize + sizeof(struct vnt_rrv_time_ab));
 	cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
@@ -1619,7 +1624,7 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
 
 	/* Fill FIFO,RrvTime,RTS,and CTS */
 	s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
-		pTX_Buffer, rts_cts,
+		pTX_Buffer, &pMICHDR, 0, rts_cts,
 		cbFrameSize, bNeedACK, TYPE_TXDMA0, &sEthHeader, false);
 
     //Fill DataHead
@@ -1828,7 +1833,7 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
 	u16 wTxBufSize;
 	u32 cbMacHdLen;
 	struct ethhdr sEthHeader;
-	void *pMICHDR;
+	struct vnt_mic_hdr *pMICHDR;
 	u32 wCurrentRate = RATE_1M;
 	PUWLAN_80211HDR  p80211Header;
 	u32 uNodeIndex = 0;
@@ -1998,8 +2003,6 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
     //the rest of pTxBufHead->wFragCtl:FragTyp will be set later in s_vFillFragParameter()
 
     if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
-	pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize +
-					sizeof(struct vnt_rrv_time_cts));
 	rts_cts = (struct vnt_cts *) (pbyTxBufferAddr + wTxBufSize +
 			sizeof(struct vnt_rrv_time_cts) + cbMICHDR);
 	pvTxDataHd = (struct vnt_tx_datahead_g *) (pbyTxBufferAddr +
@@ -2010,8 +2013,6 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
 
     }
     else {//802.11a/b packet
-	pMICHDR = (struct vnt_mic_hdr *) (pbyTxBufferAddr + wTxBufSize +
-		sizeof(struct vnt_rrv_time_ab));
 	pvTxDataHd = (struct vnt_tx_datahead_ab *)(pbyTxBufferAddr +
 		wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
 	cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR +
@@ -2030,7 +2031,7 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
 
 	/* Fill FIFO,RrvTime,RTS,and CTS */
 	s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
-		pTX_Buffer, rts_cts,
+		pTX_Buffer, &pMICHDR, cbMICHDR, rts_cts,
 		cbFrameSize, bNeedACK, TYPE_TXDMA0, &sEthHeader, false);
 
     //Fill DataHead
-- 
cgit 


From b9cc2fc0209ccfbc14ef56a99693a47b84599ee0 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Thu, 26 Sep 2013 18:57:34 +0100
Subject: staging: vt6656: rxtx.c Move rts_cts pointer assignment to
 s_vGenerateTxParameter

Move rts/cts pointers to relevant vnt_tx_data_head position.

Remove old rts_cts pointers in calling functions.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/rxtx.c | 44 ++++++++++++++++++++++---------------------
 1 file changed, 23 insertions(+), 21 deletions(-)

diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index 7002b5d1734b..468a78b797fb 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -847,7 +847,7 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
 	struct ethhdr *psEthHeader, bool need_rts)
 {
 	struct vnt_tx_fifo_head *pFifoHead = &tx_buffer->fifo_head;
-	union vnt_tx_data_head *head = rts_cts;
+	union vnt_tx_data_head *head = NULL;
 	u32 cbMACHdLen = WLAN_HDR_ADDR3_LEN; /* 24 */
 	u16 wFifoCtl;
 	u8 byFBOption = AUTO_FB_NONE;
@@ -885,8 +885,13 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
 		pBuf->wTxRrvTime_b = vnt_rxtx_rsvtime_le16(pDevice,
 			PK_TYPE_11B, cbFrameSize, pDevice->byTopCCKBasicRate,
 				bNeedACK);
-		if (need_mic)
+
+		if (need_mic) {
 			*mic_hdr = &tx_buffer->tx_head.tx_rts.tx.mic.hdr;
+			head = &tx_buffer->tx_head.tx_rts.tx.mic.head;
+		} else {
+			head = &tx_buffer->tx_head.tx_rts.tx.head;
+		}
 
 		/* Fill RTS */
 		s_vFillRTSHead(pDevice, byPktType, head, cbFrameSize,
@@ -904,8 +909,12 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
 		pBuf->wCTSTxRrvTime_ba = s_uGetRTSCTSRsvTime(pDevice, 3,
 				byPktType, cbFrameSize, wCurrentRate);
 
-		if (need_mic)
+		if (need_mic) {
 			*mic_hdr = &tx_buffer->tx_head.tx_cts.tx.mic.hdr;
+			head = &tx_buffer->tx_head.tx_cts.tx.mic.head;
+		} else {
+			head = &tx_buffer->tx_head.tx_cts.tx.head;
+		}
 
 		/* Fill CTS */
 		s_vFillCTSHead(pDevice, uDMAIdx, byPktType, head,
@@ -921,8 +930,13 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
 				byPktType, cbFrameSize, wCurrentRate);
 		pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice, byPktType,
 				cbFrameSize, wCurrentRate, bNeedACK);
-		if (need_mic)
+
+		if (need_mic) {
 			*mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
+			head = &tx_buffer->tx_head.tx_ab.tx.mic.head;
+		} else {
+			head = &tx_buffer->tx_head.tx_ab.tx.head;
+		}
 
 		/* Fill RTS */
 		s_vFillRTSHead(pDevice, byPktType, head, cbFrameSize,
@@ -948,8 +962,12 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
 		pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B,
 				cbFrameSize, wCurrentRate, bNeedACK);
 
-		if (need_mic)
+		if (need_mic) {
 			*mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
+			head = &tx_buffer->tx_head.tx_ab.tx.mic.head;
+		} else {
+			head = &tx_buffer->tx_head.tx_ab.tx.head;
+		}
 
 		/* Fill RTS */
 		s_vFillRTSHead(pDevice, byPktType, head, cbFrameSize,
@@ -1130,8 +1148,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
     if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
         if (byFBOption == AUTO_FB_NONE) {
             if (bRTS == true) {//RTS_need
-		rts_cts = (struct vnt_rts_g *) (pbyTxBufferAddr + wTxBufSize +
-				sizeof(struct vnt_rrv_time_rts) + cbMICHDR);
 		pvTxDataHd = (struct vnt_tx_datahead_g *) (pbyTxBufferAddr +
 			wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
 				cbMICHDR + sizeof(struct vnt_rts_g));
@@ -1140,8 +1156,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 				sizeof(struct vnt_tx_datahead_g);
             }
             else { //RTS_needless
-		rts_cts = (struct vnt_cts *) (pbyTxBufferAddr + wTxBufSize +
-				sizeof(struct vnt_rrv_time_cts) + cbMICHDR);
 		pvTxDataHd = (struct vnt_tx_datahead_g *)(pbyTxBufferAddr +
 			wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
 				cbMICHDR + sizeof(struct vnt_cts));
@@ -1152,8 +1166,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
         } else {
             // Auto Fall Back
             if (bRTS == true) {//RTS_need
-		rts_cts = (struct vnt_rts_g_fb *)(pbyTxBufferAddr + wTxBufSize +
-				sizeof(struct vnt_rrv_time_rts) + cbMICHDR);
 		pvTxDataHd = (struct vnt_tx_datahead_g_fb *) (pbyTxBufferAddr +
 			wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
 				cbMICHDR + sizeof(struct vnt_rts_g_fb));
@@ -1162,8 +1174,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 				sizeof(struct vnt_tx_datahead_g_fb);
             }
             else if (bRTS == false) { //RTS_needless
-		rts_cts = (struct vnt_cts_fb *) (pbyTxBufferAddr + wTxBufSize +
-			sizeof(struct vnt_rrv_time_cts) + cbMICHDR);
 		pvTxDataHd = (struct vnt_tx_datahead_g_fb *) (pbyTxBufferAddr +
 			wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
 				cbMICHDR + sizeof(struct vnt_cts_fb));
@@ -1176,8 +1186,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
     else {//802.11a/b packet
         if (byFBOption == AUTO_FB_NONE) {
             if (bRTS == true) {//RTS_need
-		rts_cts = (struct vnt_rts_ab *) (pbyTxBufferAddr + wTxBufSize +
-				sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
 		pvTxDataHd = (struct vnt_tx_datahead_ab *)(pbyTxBufferAddr +
 			wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR +
 						sizeof(struct vnt_rts_ab));
@@ -1194,8 +1202,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
         } else {
             // Auto Fall Back
             if (bRTS == true) {//RTS_need
-		rts_cts = (struct vnt_rts_a_fb *)(pbyTxBufferAddr + wTxBufSize +
-				sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
 		pvTxDataHd = (struct vnt_tx_datahead_a_fb *)(pbyTxBufferAddr +
 			wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR +
 					sizeof(struct vnt_rts_a_fb));
@@ -1597,8 +1603,6 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
 
     //Set RrvTime/RTS/CTS Buffer
     if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
-	rts_cts = (struct vnt_cts *) (pbyTxBufferAddr + wTxBufSize +
-					sizeof(struct vnt_rrv_time_cts));
 	pvTxDataHd = (struct vnt_tx_datahead_g *)(pbyTxBufferAddr + wTxBufSize +
 		sizeof(struct vnt_rrv_time_cts) + sizeof(struct vnt_cts));
 	cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
@@ -2003,8 +2007,6 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
     //the rest of pTxBufHead->wFragCtl:FragTyp will be set later in s_vFillFragParameter()
 
     if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
-	rts_cts = (struct vnt_cts *) (pbyTxBufferAddr + wTxBufSize +
-			sizeof(struct vnt_rrv_time_cts) + cbMICHDR);
 	pvTxDataHd = (struct vnt_tx_datahead_g *) (pbyTxBufferAddr +
 		wTxBufSize + sizeof(struct vnt_rrv_time_cts) + cbMICHDR +
 					sizeof(struct vnt_cts));
-- 
cgit 


From fa57560c5d4d58591dda2b160731eb4da3619016 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Thu, 26 Sep 2013 19:00:41 +0100
Subject: staging: vt6656: rxtx.c remove dead code rts_cts void

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/rxtx.c | 19 +++++++------------
 1 file changed, 7 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index 468a78b797fb..791144a50b17 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -100,9 +100,8 @@ static void *s_vGetFreeContext(struct vnt_private *pDevice);
 
 static void s_vGenerateTxParameter(struct vnt_private *pDevice,
 	u8 byPktType, u16 wCurrentRate,	struct vnt_tx_buffer *tx_buffer,
-	struct vnt_mic_hdr **mic_hdr, u32 need_mic,
-	void *rts_cts, u32 cbFrameSize, int bNeedACK, u32 uDMAIdx,
-	struct ethhdr *psEthHeader, bool need_rts);
+	struct vnt_mic_hdr **mic_hdr, u32 need_mic, u32 cbFrameSize,
+	int bNeedACK, u32 uDMAIdx, struct ethhdr *psEthHeader, bool need_rts);
 
 static u32 s_uFillDataHead(struct vnt_private *pDevice,
 	u8 byPktType, u16 wCurrentRate, void *pTxDataHead, u32 cbFrameLength,
@@ -842,9 +841,8 @@ static void s_vFillCTSHead(struct vnt_private *pDevice, u32 uDMAIdx,
 
 static void s_vGenerateTxParameter(struct vnt_private *pDevice,
 	u8 byPktType, u16 wCurrentRate,	struct vnt_tx_buffer *tx_buffer,
-	struct vnt_mic_hdr **mic_hdr, u32 need_mic,
-	void *rts_cts, u32 cbFrameSize, int bNeedACK, u32 uDMAIdx,
-	struct ethhdr *psEthHeader, bool need_rts)
+	struct vnt_mic_hdr **mic_hdr, u32 need_mic, u32 cbFrameSize,
+	int bNeedACK, u32 uDMAIdx, struct ethhdr *psEthHeader, bool need_rts)
 {
 	struct vnt_tx_fifo_head *pFifoHead = &tx_buffer->fifo_head;
 	union vnt_tx_data_head *head = NULL;
@@ -1013,7 +1011,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 	u32 uDuration;
 	u32 cbHeaderLength = 0, uPadding = 0;
 	struct vnt_mic_hdr *pMICHDR;
-	void *rts_cts = NULL;
 	void *pvTxDataHd;
 	u8 byFBOption = AUTO_FB_NONE, byFragType;
 	u16 wTxBufSize;
@@ -1232,7 +1229,7 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 
     //Fill FIFO,RrvTime,RTS,and CTS
     s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
-		tx_buffer, &pMICHDR, cbMICHDR, rts_cts,
+		tx_buffer, &pMICHDR, cbMICHDR,
 		cbFrameSize, bNeedACK, uDMAIdx, psEthHeader, bRTS);
     //Fill DataHead
     uDuration = s_uFillDataHead(pDevice, byPktType, wCurrentRate, pvTxDataHd, cbFrameSize, uDMAIdx, bNeedACK,
@@ -1469,7 +1466,6 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
 	struct ieee80211_hdr *pMACHeader;
 	struct ethhdr sEthHeader;
 	u8 byPktType, *pbyTxBufferAddr;
-	void *rts_cts = NULL;
 	void *pvTxDataHd;
 	struct vnt_mic_hdr *pMICHDR = NULL;
 	u32 uDuration, cbReqCount, cbHeaderSize, cbFrameBodySize, cbFrameSize;
@@ -1628,7 +1624,7 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
 
 	/* Fill FIFO,RrvTime,RTS,and CTS */
 	s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
-		pTX_Buffer, &pMICHDR, 0, rts_cts,
+		pTX_Buffer, &pMICHDR, 0,
 		cbFrameSize, bNeedACK, TYPE_TXDMA0, &sEthHeader, false);
 
     //Fill DataHead
@@ -1821,7 +1817,6 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
 	struct vnt_tx_fifo_head *pTxBufHead;
 	u8 byPktType;
 	u8 *pbyTxBufferAddr;
-	void *rts_cts = NULL;
 	void *pvTxDataHd;
 	u32 uDuration, cbReqCount;
 	struct ieee80211_hdr *pMACHeader;
@@ -2033,7 +2028,7 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
 
 	/* Fill FIFO,RrvTime,RTS,and CTS */
 	s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
-		pTX_Buffer, &pMICHDR, cbMICHDR, rts_cts,
+		pTX_Buffer, &pMICHDR, cbMICHDR,
 		cbFrameSize, bNeedACK, TYPE_TXDMA0, &sEthHeader, false);
 
     //Fill DataHead
-- 
cgit 


From cb9cfd7ed3f6ed4c40167b4251cdb382b6b3ba1c Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Thu, 26 Sep 2013 11:40:15 -0700
Subject: staging: comedi: 8253.h: tidy up the i8253_cascade_ns_to_timer*()
 users

Introduce a couple defines for the common 8254 oscillator base values
used in the comedi drivers and remove the custom defines and open
coded values.

Change the i8253_cascade_ns_to_timer_2div() calls in the drivers to
the more generic i8253_cascade_ns_to_timer(). They are identical due
to the #define in the 8253.h header.

Remove the extra mask by TRIG_ROUND_MASK of the 'round_mode' parameter
to i8253_cascade_ns_to_timer(). That function already handles the mask.

Tidy up all the calls to i8253_cascade_ns_to_timer().

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/8253.h         |  9 ++++++
 drivers/staging/comedi/drivers/adl_pci9111.c  | 11 +++----
 drivers/staging/comedi/drivers/adl_pci9118.c  | 17 ++++++-----
 drivers/staging/comedi/drivers/adv_pci1710.c  | 15 ++++-----
 drivers/staging/comedi/drivers/amplc_pci224.c | 36 ++++++++++------------
 drivers/staging/comedi/drivers/cb_das16_cs.c  | 12 ++++----
 drivers/staging/comedi/drivers/cb_pcidas.c    | 43 ++++++++++++--------------
 drivers/staging/comedi/drivers/das16.c        | 35 ++++++++++-----------
 drivers/staging/comedi/drivers/das16m1.c      | 18 +++++------
 drivers/staging/comedi/drivers/das1800.c      | 44 +++++++++++----------------
 drivers/staging/comedi/drivers/das800.c       | 10 +++---
 drivers/staging/comedi/drivers/ni_labpc.c     | 23 ++++++--------
 drivers/staging/comedi/drivers/pcl711.c       |  4 +--
 drivers/staging/comedi/drivers/pcl812.c       | 37 +++++++++++-----------
 drivers/staging/comedi/drivers/pcl816.c       | 13 ++++----
 drivers/staging/comedi/drivers/pcl818.c       | 15 ++++-----
 16 files changed, 161 insertions(+), 181 deletions(-)

diff --git a/drivers/staging/comedi/drivers/8253.h b/drivers/staging/comedi/drivers/8253.h
index 3abedcd2527b..e3d737cf7302 100644
--- a/drivers/staging/comedi/drivers/8253.h
+++ b/drivers/staging/comedi/drivers/8253.h
@@ -21,6 +21,15 @@
 
 #include "../comedi.h"
 
+/*
+ * Common oscillator base values in nanoseconds
+ */
+#define I8254_OSC_BASE_10MHZ		100
+#define I8254_OSC_BASE_5MHZ		200
+#define I8254_OSC_BASE_4MHZ		250
+#define I8254_OSC_BASE_2MHZ		500
+#define I8254_OSC_BASE_1MHZ		1000
+
 #define i8253_cascade_ns_to_timer i8253_cascade_ns_to_timer_2div
 
 static inline void i8253_cascade_ns_to_timer_2div_old(int i8253_osc_base,
diff --git a/drivers/staging/comedi/drivers/adl_pci9111.c b/drivers/staging/comedi/drivers/adl_pci9111.c
index 89ca5078e8b3..4db46f0f315e 100644
--- a/drivers/staging/comedi/drivers/adl_pci9111.c
+++ b/drivers/staging/comedi/drivers/adl_pci9111.c
@@ -86,8 +86,6 @@ TODO:
 #define PCI9111_AI_INSTANT_READ_UDELAY_US	2
 #define PCI9111_AI_INSTANT_READ_TIMEOUT		100
 
-#define PCI9111_8254_CLOCK_PERIOD_NS		500
-
 /*
  * IO address map and bit defines
  */
@@ -393,11 +391,10 @@ static int pci9111_ai_do_cmd_test(struct comedi_device *dev,
 
 	if (cmd->convert_src == TRIG_TIMER) {
 		tmp = cmd->convert_arg;
-		i8253_cascade_ns_to_timer_2div(PCI9111_8254_CLOCK_PERIOD_NS,
-					       &dev_private->div1,
-					       &dev_private->div2,
-					       &cmd->convert_arg,
-					       cmd->flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(I8254_OSC_BASE_2MHZ,
+					  &dev_private->div1,
+					  &dev_private->div2,
+					  &cmd->convert_arg, cmd->flags);
 		if (tmp != cmd->convert_arg)
 			error++;
 	}
diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
index f50dbea67240..bd5c8bbad090 100644
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -792,7 +792,8 @@ static void pci9118_calc_divisors(char mode, struct comedi_device *dev,
 	case 4:
 		if (*tim2 < this_board->ai_ns_min)
 			*tim2 = this_board->ai_ns_min;
-		i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, div1, div2,
+		i8253_cascade_ns_to_timer(devpriv->i8254_osc_base,
+					  div1, div2,
 					  tim2, flags & TRIG_ROUND_NEAREST);
 		break;
 	case 2:
@@ -1277,9 +1278,9 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev,
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		tmp = cmd->scan_begin_arg;
-		i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, &divisor1,
-					  &divisor2, &cmd->scan_begin_arg,
-					  cmd->flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(devpriv->i8254_osc_base,
+					  &divisor1, &divisor2,
+					  &cmd->scan_begin_arg, cmd->flags);
 		if (cmd->scan_begin_arg < this_board->ai_ns_min)
 			cmd->scan_begin_arg = this_board->ai_ns_min;
 		if (tmp != cmd->scan_begin_arg)
@@ -1288,9 +1289,9 @@ static int pci9118_ai_cmdtest(struct comedi_device *dev,
 
 	if (cmd->convert_src & (TRIG_TIMER | TRIG_NOW)) {
 		tmp = cmd->convert_arg;
-		i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, &divisor1,
-					  &divisor2, &cmd->convert_arg,
-					  cmd->flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(devpriv->i8254_osc_base,
+					  &divisor1, &divisor2,
+					  &cmd->convert_arg, cmd->flags);
 		if (cmd->convert_arg < this_board->ai_ns_min)
 			cmd->convert_arg = this_board->ai_ns_min;
 		if (tmp != cmd->convert_arg)
@@ -2086,7 +2087,7 @@ static int pci9118_common_attach(struct comedi_device *dev, int disable_irq,
 	s->insn_bits = pci9118_insn_bits_do;
 
 	devpriv->valid = 1;
-	devpriv->i8254_osc_base = 250;	/* 250ns=4MHz */
+	devpriv->i8254_osc_base = I8254_OSC_BASE_4MHZ;
 	devpriv->ai_maskharderr = 0x10a;
 					/* default measure crash condition */
 	if (hw_err_mask)		/* disable some requested */
diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c
index 3dacfaeca4cb..49b39ec22708 100644
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ b/drivers/staging/comedi/drivers/adv_pci1710.c
@@ -1005,9 +1005,10 @@ static int pci171x_ai_docmd_and_mode(int mode, struct comedi_device *dev,
 		} else {
 			devpriv->ai_et = 0;
 		}
-		i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, &divisor1,
-					  &divisor2, &devpriv->ai_timer1,
-					  devpriv->ai_flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(devpriv->i8254_osc_base,
+					  &divisor1, &divisor2,
+					  &devpriv->ai_timer1,
+					  devpriv->ai_flags);
 		outw(devpriv->CntrlReg, dev->iobase + PCI171x_CONTROL);
 		if (mode != 2) {
 			/*  start pacer */
@@ -1086,9 +1087,9 @@ static int pci171x_ai_cmdtest(struct comedi_device *dev,
 
 	if (cmd->convert_src == TRIG_TIMER) {
 		tmp = cmd->convert_arg;
-		i8253_cascade_ns_to_timer(devpriv->i8254_osc_base, &divisor1,
-					  &divisor2, &cmd->convert_arg,
-					  cmd->flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(devpriv->i8254_osc_base,
+					  &divisor1, &divisor2,
+					  &cmd->convert_arg, cmd->flags);
 		if (cmd->convert_arg < this_board->ai_ns_min)
 			cmd->convert_arg = this_board->ai_ns_min;
 		if (tmp != cmd->convert_arg)
@@ -1284,7 +1285,7 @@ static int pci1710_auto_attach(struct comedi_device *dev,
 			s->do_cmdtest = pci171x_ai_cmdtest;
 			s->do_cmd = pci171x_ai_cmd;
 		}
-		devpriv->i8254_osc_base = 100;	/*  100ns=10MHz */
+		devpriv->i8254_osc_base = I8254_OSC_BASE_10MHZ;
 		subdev++;
 	}
 
diff --git a/drivers/staging/comedi/drivers/amplc_pci224.c b/drivers/staging/comedi/drivers/amplc_pci224.c
index 179de53a86f0..cf385b8e32bf 100644
--- a/drivers/staging/comedi/drivers/amplc_pci224.c
+++ b/drivers/staging/comedi/drivers/amplc_pci224.c
@@ -215,12 +215,6 @@ Caveats:
 #define CLK_EXT		7	/* external clock */
 /* Macro to construct clock input configuration register value. */
 #define CLK_CONFIG(chan, src)	((((chan) & 3) << 3) | ((src) & 7))
-/* Timebases in ns. */
-#define TIMEBASE_10MHZ		100
-#define TIMEBASE_1MHZ		1000
-#define TIMEBASE_100KHZ		10000
-#define TIMEBASE_10KHZ		100000
-#define TIMEBASE_1KHZ		1000000
 
 /*
  * Counter/timer gate input configuration sources.
@@ -843,26 +837,26 @@ pci224_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 		switch (round_mode) {
 		case TRIG_ROUND_NEAREST:
 		default:
-			round = TIMEBASE_10MHZ / 2;
+			round = I8254_OSC_BASE_10MHZ / 2;
 			break;
 		case TRIG_ROUND_DOWN:
 			round = 0;
 			break;
 		case TRIG_ROUND_UP:
-			round = TIMEBASE_10MHZ - 1;
+			round = I8254_OSC_BASE_10MHZ - 1;
 			break;
 		}
 		/* Be careful to avoid overflow! */
-		div2 = cmd->scan_begin_arg / TIMEBASE_10MHZ;
-		div2 += (round + cmd->scan_begin_arg % TIMEBASE_10MHZ) /
-		    TIMEBASE_10MHZ;
+		div2 = cmd->scan_begin_arg / I8254_OSC_BASE_10MHZ;
+		div2 += (round + cmd->scan_begin_arg % I8254_OSC_BASE_10MHZ) /
+			I8254_OSC_BASE_10MHZ;
 		if (div2 <= 0x10000) {
 			/* A single timer will suffice. */
 			if (div2 < 2)
 				div2 = 2;
-			cmd->scan_begin_arg = div2 * TIMEBASE_10MHZ;
+			cmd->scan_begin_arg = div2 * I8254_OSC_BASE_10MHZ;
 			if (cmd->scan_begin_arg < div2 ||
-			    cmd->scan_begin_arg < TIMEBASE_10MHZ) {
+			    cmd->scan_begin_arg < I8254_OSC_BASE_10MHZ) {
 				/* Overflow! */
 				cmd->scan_begin_arg = MAX_SCAN_PERIOD;
 			}
@@ -870,7 +864,8 @@ pci224_ao_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 			/* Use two timers. */
 			div1 = devpriv->cached_div1;
 			div2 = devpriv->cached_div2;
-			pci224_cascade_ns_to_timer(TIMEBASE_10MHZ, &div1, &div2,
+			pci224_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ,
+						   &div1, &div2,
 						   &cmd->scan_begin_arg,
 						   round_mode);
 			devpriv->cached_div1 = div1;
@@ -1002,19 +997,19 @@ static int pci224_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		switch (round_mode) {
 		case TRIG_ROUND_NEAREST:
 		default:
-			round = TIMEBASE_10MHZ / 2;
+			round = I8254_OSC_BASE_10MHZ / 2;
 			break;
 		case TRIG_ROUND_DOWN:
 			round = 0;
 			break;
 		case TRIG_ROUND_UP:
-			round = TIMEBASE_10MHZ - 1;
+			round = I8254_OSC_BASE_10MHZ - 1;
 			break;
 		}
 		/* Be careful to avoid overflow! */
-		div2 = cmd->scan_begin_arg / TIMEBASE_10MHZ;
-		div2 += (round + cmd->scan_begin_arg % TIMEBASE_10MHZ) /
-		    TIMEBASE_10MHZ;
+		div2 = cmd->scan_begin_arg / I8254_OSC_BASE_10MHZ;
+		div2 += (round + cmd->scan_begin_arg % I8254_OSC_BASE_10MHZ) /
+			I8254_OSC_BASE_10MHZ;
 		if (div2 <= 0x10000) {
 			/* A single timer will suffice. */
 			if (div2 < 2)
@@ -1025,7 +1020,8 @@ static int pci224_ao_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 			/* Use two timers. */
 			div1 = devpriv->cached_div1;
 			div2 = devpriv->cached_div2;
-			pci224_cascade_ns_to_timer(TIMEBASE_10MHZ, &div1, &div2,
+			pci224_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ,
+						   &div1, &div2,
 						   &ns, round_mode);
 		}
 
diff --git a/drivers/staging/comedi/drivers/cb_das16_cs.c b/drivers/staging/comedi/drivers/cb_das16_cs.c
index 3e072955ea79..64d5f291553f 100644
--- a/drivers/staging/comedi/drivers/cb_das16_cs.c
+++ b/drivers/staging/comedi/drivers/cb_das16_cs.c
@@ -234,9 +234,9 @@ static int das16cs_ai_cmdtest(struct comedi_device *dev,
 		unsigned int div1 = 0, div2 = 0;
 
 		tmp = cmd->scan_begin_arg;
-		i8253_cascade_ns_to_timer(100, &div1, &div2,
-					  &cmd->scan_begin_arg,
-					  cmd->flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ,
+					  &div1, &div2,
+					  &cmd->scan_begin_arg, cmd->flags);
 		if (tmp != cmd->scan_begin_arg)
 			err++;
 	}
@@ -244,9 +244,9 @@ static int das16cs_ai_cmdtest(struct comedi_device *dev,
 		unsigned int div1 = 0, div2 = 0;
 
 		tmp = cmd->convert_arg;
-		i8253_cascade_ns_to_timer(100, &div1, &div2,
-					  &cmd->scan_begin_arg,
-					  cmd->flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ,
+					  &div1, &div2,
+					  &cmd->scan_begin_arg, cmd->flags);
 		if (tmp != cmd->convert_arg)
 			err++;
 		if (cmd->scan_begin_src == TRIG_TIMER &&
diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c
index 41d89ee7fa33..0891659f9eb5 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas.c
@@ -73,7 +73,6 @@ analog triggering on 1602 series
 #include "amcc_s5933.h"
 #include "comedi_fc.h"
 
-#define TIMER_BASE		100	/* 10MHz master clock */
 #define AI_BUFFER_SIZE		1024	/* max ai fifo size */
 #define AO_BUFFER_SIZE		1024	/* max ao fifo size */
 #define NUM_CHANNELS_8800	8
@@ -880,21 +879,19 @@ static int cb_pcidas_ai_cmdtest(struct comedi_device *dev,
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		tmp = cmd->scan_begin_arg;
-		i8253_cascade_ns_to_timer_2div(TIMER_BASE,
-					       &(devpriv->divisor1),
-					       &(devpriv->divisor2),
-					       &(cmd->scan_begin_arg),
-					       cmd->flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ,
+					  &devpriv->divisor1,
+					  &devpriv->divisor2,
+					  &cmd->scan_begin_arg, cmd->flags);
 		if (tmp != cmd->scan_begin_arg)
 			err++;
 	}
 	if (cmd->convert_src == TRIG_TIMER) {
 		tmp = cmd->convert_arg;
-		i8253_cascade_ns_to_timer_2div(TIMER_BASE,
-					       &(devpriv->divisor1),
-					       &(devpriv->divisor2),
-					       &(cmd->convert_arg),
-					       cmd->flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ,
+					  &devpriv->divisor1,
+					  &devpriv->divisor2,
+					  &cmd->convert_arg, cmd->flags);
 		if (tmp != cmd->convert_arg)
 			err++;
 	}
@@ -932,9 +929,9 @@ static void cb_pcidas_load_counters(struct comedi_device *dev, unsigned int *ns,
 {
 	struct cb_pcidas_private *devpriv = dev->private;
 
-	i8253_cascade_ns_to_timer_2div(TIMER_BASE, &(devpriv->divisor1),
-				       &(devpriv->divisor2), ns,
-				       rounding_flags & TRIG_ROUND_MASK);
+	i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ,
+				  &devpriv->divisor1, &devpriv->divisor2,
+				  ns, rounding_flags);
 
 	/* Write the values of ctr1 and ctr2 into counters 1 and 2 */
 	i8254_load(devpriv->pacer_counter_dio + ADC8254, 0, 1,
@@ -1084,11 +1081,10 @@ static int cb_pcidas_ao_cmdtest(struct comedi_device *dev,
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		tmp = cmd->scan_begin_arg;
-		i8253_cascade_ns_to_timer_2div(TIMER_BASE,
-					       &(devpriv->ao_divisor1),
-					       &(devpriv->ao_divisor2),
-					       &(cmd->scan_begin_arg),
-					       cmd->flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ,
+					  &devpriv->ao_divisor1,
+					  &devpriv->ao_divisor2,
+					  &cmd->scan_begin_arg, cmd->flags);
 		if (tmp != cmd->scan_begin_arg)
 			err++;
 	}
@@ -1209,11 +1205,10 @@ static int cb_pcidas_ao_cmd(struct comedi_device *dev,
 
 	/*  load counters */
 	if (cmd->scan_begin_src == TRIG_TIMER) {
-		i8253_cascade_ns_to_timer_2div(TIMER_BASE,
-					       &(devpriv->ao_divisor1),
-					       &(devpriv->ao_divisor2),
-					       &(cmd->scan_begin_arg),
-					       cmd->flags);
+		i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ,
+					  &devpriv->ao_divisor1,
+					  &devpriv->ao_divisor2,
+					  &cmd->scan_begin_arg, cmd->flags);
 
 		/* Write the values of ctr1 and ctr2 into counters 1 and 2 */
 		i8254_load(devpriv->pacer_counter_dio + DAC8254, 0, 1,
diff --git a/drivers/staging/comedi/drivers/das16.c b/drivers/staging/comedi/drivers/das16.c
index fc058f8e8702..30f3995d7297 100644
--- a/drivers/staging/comedi/drivers/das16.c
+++ b/drivers/staging/comedi/drivers/das16.c
@@ -675,21 +675,19 @@ static int das16_cmd_test(struct comedi_device *dev, struct comedi_subdevice *s,
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		unsigned int tmp = cmd->scan_begin_arg;
 		/*  set divisors, correct timing arguments */
-		i8253_cascade_ns_to_timer_2div(devpriv->clockbase,
-					       &devpriv->divisor1,
-					       &devpriv->divisor2,
-					       &cmd->scan_begin_arg,
-					       cmd->flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(devpriv->clockbase,
+					  &devpriv->divisor1,
+					  &devpriv->divisor2,
+					  &cmd->scan_begin_arg, cmd->flags);
 		err += (tmp != cmd->scan_begin_arg);
 	}
 	if (cmd->convert_src == TRIG_TIMER) {
 		unsigned int tmp = cmd->convert_arg;
 		/*  set divisors, correct timing arguments */
-		i8253_cascade_ns_to_timer_2div(devpriv->clockbase,
-					       &devpriv->divisor1,
-					       &devpriv->divisor2,
-					       &cmd->convert_arg,
-					       cmd->flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(devpriv->clockbase,
+					  &devpriv->divisor1,
+					  &devpriv->divisor2,
+					  &cmd->convert_arg, cmd->flags);
 		err += (tmp != cmd->convert_arg);
 	}
 	if (err)
@@ -725,11 +723,9 @@ static unsigned int das16_set_pacer(struct comedi_device *dev, unsigned int ns,
 	struct das16_private_struct *devpriv = dev->private;
 	unsigned long timer_base = dev->iobase + DAS16_TIMER_BASE_REG;
 
-	i8253_cascade_ns_to_timer_2div(devpriv->clockbase,
-				       &devpriv->divisor1,
-				       &devpriv->divisor2,
-				       &ns,
-				       rounding_flags & TRIG_ROUND_MASK);
+	i8253_cascade_ns_to_timer(devpriv->clockbase,
+				  &devpriv->divisor1, &devpriv->divisor2,
+				  &ns, rounding_flags);
 
 	/* Write the values of ctr1 and ctr2 into counters 1 and 2 */
 	i8254_load(timer_base, 0, 1, devpriv->divisor1, 2);
@@ -1036,14 +1032,15 @@ static int das16_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		status = inb(dev->iobase + DAS1600_STATUS_REG);
 
 		if (status & DAS1600_STATUS_CLK_10MHZ)
-			devpriv->clockbase = 100;
+			devpriv->clockbase = I8254_OSC_BASE_10MHZ;
 		else
-			devpriv->clockbase = 1000;
+			devpriv->clockbase = I8254_OSC_BASE_1MHZ;
 	} else {
 		if (it->options[3])
-			devpriv->clockbase = 1000 / it->options[3];
+			devpriv->clockbase = I8254_OSC_BASE_1MHZ /
+					     it->options[3];
 		else
-			devpriv->clockbase = 1000;	/*  1 MHz default */
+			devpriv->clockbase = I8254_OSC_BASE_1MHZ;
 	}
 
 	/* initialize dma */
diff --git a/drivers/staging/comedi/drivers/das16m1.c b/drivers/staging/comedi/drivers/das16m1.c
index 187b0a1c378b..579b74e471d9 100644
--- a/drivers/staging/comedi/drivers/das16m1.c
+++ b/drivers/staging/comedi/drivers/das16m1.c
@@ -63,8 +63,6 @@ irq can be omitted, although the cmd interface will not work without it.
 #define DAS16M1_SIZE 16
 #define DAS16M1_SIZE2 8
 
-#define DAS16M1_XTAL 100	/* 10 MHz master clock */
-
 #define FIFO_SIZE 1024		/*  1024 sample fifo */
 
 /*
@@ -207,11 +205,10 @@ static int das16m1_cmd_test(struct comedi_device *dev,
 	if (cmd->convert_src == TRIG_TIMER) {
 		tmp = cmd->convert_arg;
 		/* calculate counter values that give desired timing */
-		i8253_cascade_ns_to_timer_2div(DAS16M1_XTAL,
-					       &(devpriv->divisor1),
-					       &(devpriv->divisor2),
-					       &(cmd->convert_arg),
-					       cmd->flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(I8254_OSC_BASE_10MHZ,
+					  &devpriv->divisor1,
+					  &devpriv->divisor2,
+					  &cmd->convert_arg, cmd->flags);
 		if (tmp != cmd->convert_arg)
 			err++;
 	}
@@ -250,9 +247,10 @@ static unsigned int das16m1_set_pacer(struct comedi_device *dev,
 {
 	struct das16m1_private_struct *devpriv = dev->private;
 
-	i8253_cascade_ns_to_timer_2div(DAS16M1_XTAL, &(devpriv->divisor1),
-				       &(devpriv->divisor2), &ns,
-				       rounding_flags & TRIG_ROUND_MASK);
+	i8253_cascade_ns_to_timer_2div(I8254_OSC_BASE_10MHZ,
+				       &devpriv->divisor1,
+				       &devpriv->divisor2,
+				       &ns, rounding_flags);
 
 	/* Write the values of ctr1 and ctr2 into counters 1 and 2 */
 	i8254_load(dev->iobase + DAS16M1_8254_SECOND, 0, 1, devpriv->divisor1,
diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c
index 8b9a0a66b5a5..f753a10c6549 100644
--- a/drivers/staging/comedi/drivers/das1800.c
+++ b/drivers/staging/comedi/drivers/das1800.c
@@ -108,7 +108,6 @@ TODO:
 /* misc. defines */
 #define DAS1800_SIZE           16	/* uses 16 io addresses */
 #define FIFO_SIZE              1024	/*  1024 sample fifo */
-#define TIMER_BASE             200	/*  5 Mhz master clock */
 #define UNIPOLAR               0x4	/*  bit that determines whether input range is uni/bipolar */
 #define DMA_BUF_SIZE           0x1ff00	/*  size in bytes of dma buffers */
 
@@ -839,12 +838,11 @@ static int das1800_ai_do_cmdtest(struct comedi_device *dev,
 		if (cmd->scan_begin_src == TRIG_FOLLOW) {
 			tmp_arg = cmd->convert_arg;
 			/* calculate counter values that give desired timing */
-			i8253_cascade_ns_to_timer_2div(TIMER_BASE,
-						       &(devpriv->divisor1),
-						       &(devpriv->divisor2),
-						       &(cmd->convert_arg),
-						       cmd->
-						       flags & TRIG_ROUND_MASK);
+			i8253_cascade_ns_to_timer(I8254_OSC_BASE_5MHZ,
+						  &devpriv->divisor1,
+						  &devpriv->divisor2,
+						  &cmd->convert_arg,
+						  cmd->flags);
 			if (tmp_arg != cmd->convert_arg)
 				err++;
 		}
@@ -869,16 +867,11 @@ static int das1800_ai_do_cmdtest(struct comedi_device *dev,
 				}
 				tmp_arg = cmd->scan_begin_arg;
 				/* calculate counter values that give desired timing */
-				i8253_cascade_ns_to_timer_2div(TIMER_BASE,
-							       &(devpriv->
-								 divisor1),
-							       &(devpriv->
-								 divisor2),
-							       &(cmd->
-								 scan_begin_arg),
-							       cmd->
-							       flags &
-							       TRIG_ROUND_MASK);
+				i8253_cascade_ns_to_timer(I8254_OSC_BASE_5MHZ,
+							  &devpriv->divisor1,
+							  &devpriv->divisor2,
+							  &cmd->scan_begin_arg,
+							  cmd->flags);
 				if (tmp_arg != cmd->scan_begin_arg)
 					err++;
 			}
@@ -1010,12 +1003,10 @@ static int setup_counters(struct comedi_device *dev,
 		if (cmd->convert_src == TRIG_TIMER) {
 			/* set conversion frequency */
 			period = cmd->convert_arg;
-			i8253_cascade_ns_to_timer_2div(TIMER_BASE,
-						       &devpriv->divisor1,
-						       &devpriv->divisor2,
-						       &period,
-						       cmd->flags &
-							TRIG_ROUND_MASK);
+			i8253_cascade_ns_to_timer(I8254_OSC_BASE_5MHZ,
+						  &devpriv->divisor1,
+						  &devpriv->divisor2,
+						  &period, cmd->flags);
 			if (das1800_set_frequency(dev) < 0)
 				return -1;
 		}
@@ -1023,9 +1014,10 @@ static int setup_counters(struct comedi_device *dev,
 	case TRIG_TIMER:	/*  in burst mode */
 		/* set scan frequency */
 		period = cmd->scan_begin_arg;
-		i8253_cascade_ns_to_timer_2div(TIMER_BASE, &devpriv->divisor1,
-					       &devpriv->divisor2, &period,
-					       cmd->flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(I8254_OSC_BASE_5MHZ,
+					  &devpriv->divisor1,
+					  &devpriv->divisor2,
+					  &period, cmd->flags);
 		if (das1800_set_frequency(dev) < 0)
 			return -1;
 		break;
diff --git a/drivers/staging/comedi/drivers/das800.c b/drivers/staging/comedi/drivers/das800.c
index b80dd0362ffc..5af0a5764a8c 100644
--- a/drivers/staging/comedi/drivers/das800.c
+++ b/drivers/staging/comedi/drivers/das800.c
@@ -66,7 +66,6 @@ cmd triggers supported:
 #include "comedi_fc.h"
 
 #define DAS800_SIZE           8
-#define TIMER_BASE            1000
 #define N_CHAN_AI             8	/*  number of analog input channels */
 
 /* Registers for the das800 */
@@ -356,11 +355,10 @@ static int das800_ai_do_cmdtest(struct comedi_device *dev,
 		int tmp = cmd->convert_arg;
 
 		/* calculate counter values that give desired timing */
-		i8253_cascade_ns_to_timer_2div(TIMER_BASE,
-					       &devpriv->divisor1,
-					       &devpriv->divisor2,
-					       &cmd->convert_arg,
-					       cmd->flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(I8254_OSC_BASE_1MHZ,
+					  &devpriv->divisor1,
+					  &devpriv->divisor2,
+					  &cmd->convert_arg, cmd->flags);
 		if (tmp != cmd->convert_arg)
 			err++;
 	}
diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index 27daccb78f83..e91570dd6b0d 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -73,7 +73,6 @@
 #include "ni_labpc_isadma.h"
 
 #define LABPC_SIZE		0x20	/* size of ISA io region */
-#define LABPC_TIMER_BASE	500	/* 2 MHz master clock */
 #define LABPC_ADC_TIMEOUT	1000
 
 enum scan_mode {
@@ -459,13 +458,13 @@ static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd,
 		 * clock speed on convert and scan counters)
 		 */
 		devpriv->divisor_b0 = (scan_period - 1) /
-		    (LABPC_TIMER_BASE * max_counter_value) + 1;
+		    (I8254_OSC_BASE_2MHZ * max_counter_value) + 1;
 		if (devpriv->divisor_b0 < min_counter_value)
 			devpriv->divisor_b0 = min_counter_value;
 		if (devpriv->divisor_b0 > max_counter_value)
 			devpriv->divisor_b0 = max_counter_value;
 
-		base_period = LABPC_TIMER_BASE * devpriv->divisor_b0;
+		base_period = I8254_OSC_BASE_2MHZ * devpriv->divisor_b0;
 
 		/*  set a0 for conversion frequency and b1 for scan frequency */
 		switch (cmd->flags & TRIG_ROUND_MASK) {
@@ -510,22 +509,20 @@ static void labpc_adc_timing(struct comedi_device *dev, struct comedi_cmd *cmd,
 		 * calculate cascaded counter values
 		 * that give desired scan timing
 		 */
-		i8253_cascade_ns_to_timer_2div(LABPC_TIMER_BASE,
-					       &(devpriv->divisor_b1),
-					       &(devpriv->divisor_b0),
-					       &scan_period,
-					       cmd->flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(I8254_OSC_BASE_2MHZ,
+					  &devpriv->divisor_b1,
+					  &devpriv->divisor_b0,
+					  &scan_period, cmd->flags);
 		labpc_set_ai_scan_period(cmd, mode, scan_period);
 	} else if (convert_period) {
 		/*
 		 * calculate cascaded counter values
 		 * that give desired conversion timing
 		 */
-		i8253_cascade_ns_to_timer_2div(LABPC_TIMER_BASE,
-					       &(devpriv->divisor_a0),
-					       &(devpriv->divisor_b0),
-					       &convert_period,
-					       cmd->flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(I8254_OSC_BASE_2MHZ,
+					  &devpriv->divisor_a0,
+					  &devpriv->divisor_b0,
+					  &convert_period, cmd->flags);
 		labpc_set_ai_convert_period(cmd, mode, convert_period);
 	}
 }
diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index e170f8aeef5f..89982fb52e50 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -349,11 +349,11 @@ static int pcl711_ai_cmdtest(struct comedi_device *dev,
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		tmp = cmd->scan_begin_arg;
-		i8253_cascade_ns_to_timer(500,		/* 2 Mhz */
+		i8253_cascade_ns_to_timer(I8254_OSC_BASE_2MHZ,
 					  &devpriv->divisor1,
 					  &devpriv->divisor2,
 					  &cmd->scan_begin_arg,
-					  cmd->flags & TRIG_ROUND_MASK);
+					  cmd->flags);
 		if (tmp != cmd->scan_begin_arg)
 			err++;
 	}
diff --git a/drivers/staging/comedi/drivers/pcl812.c b/drivers/staging/comedi/drivers/pcl812.c
index 2b10a95251bd..530aee14f07a 100644
--- a/drivers/staging/comedi/drivers/pcl812.c
+++ b/drivers/staging/comedi/drivers/pcl812.c
@@ -589,9 +589,9 @@ static int pcl812_ai_cmdtest(struct comedi_device *dev,
 
 	if (cmd->convert_src == TRIG_TIMER) {
 		tmp = cmd->convert_arg;
-		i8253_cascade_ns_to_timer(board->i8254_osc_base, &divisor1,
-					  &divisor2, &cmd->convert_arg,
-					  cmd->flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(board->i8254_osc_base,
+					  &divisor1, &divisor2,
+					  &cmd->convert_arg, cmd->flags);
 		if (cmd->convert_arg < board->ai_ns_min)
 			cmd->convert_arg = board->ai_ns_min;
 		if (tmp != cmd->convert_arg)
@@ -637,8 +637,7 @@ static int pcl812_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 			cmd->convert_arg = board->ai_ns_min;
 		i8253_cascade_ns_to_timer(board->i8254_osc_base,
 					  &divisor1, &divisor2,
-					  &cmd->convert_arg,
-					  cmd->flags & TRIG_ROUND_MASK);
+					  &cmd->convert_arg, cmd->flags);
 	}
 
 	start_pacer(dev, -1, 0, 0);	/*  stop pacer */
@@ -1440,40 +1439,40 @@ static void pcl812_detach(struct comedi_device *dev)
 
 static const struct pcl812_board boardtypes[] = {
 	{"pcl812", boardPCL812, 16, 0, 2, 16, 16, 0x0fff,
-	 33000, 500, &range_bipolar10, &range_unipolar5,
+	 33000, I8254_OSC_BASE_2MHZ, &range_bipolar10, &range_unipolar5,
 	 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
 	{"pcl812pg", boardPCL812PG, 16, 0, 2, 16, 16, 0x0fff,
-	 33000, 500, &range_pcl812pg_ai, &range_unipolar5,
+	 33000, I8254_OSC_BASE_2MHZ, &range_pcl812pg_ai, &range_unipolar5,
 	 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
 	{"acl8112pg", boardPCL812PG, 16, 0, 2, 16, 16, 0x0fff,
-	 10000, 500, &range_pcl812pg_ai, &range_unipolar5,
+	 10000, I8254_OSC_BASE_2MHZ, &range_pcl812pg_ai, &range_unipolar5,
 	 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
 	{"acl8112dg", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
-	 10000, 500, &range_acl8112dg_ai, &range_unipolar5,
+	 10000, I8254_OSC_BASE_2MHZ, &range_acl8112dg_ai, &range_unipolar5,
 	 0xdcfc, 0x0a, PCLx1x_IORANGE, 1},
 	{"acl8112hg", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
-	 10000, 500, &range_acl8112hg_ai, &range_unipolar5,
+	 10000, I8254_OSC_BASE_2MHZ, &range_acl8112hg_ai, &range_unipolar5,
 	 0xdcfc, 0x0a, PCLx1x_IORANGE, 1},
 	{"a821pgl", boardA821, 16, 8, 1, 16, 16, 0x0fff,
-	 10000, 500, &range_pcl813b_ai, &range_unipolar5,
+	 10000, I8254_OSC_BASE_2MHZ, &range_pcl813b_ai, &range_unipolar5,
 	 0x000c, 0x00, PCLx1x_IORANGE, 0},
 	{"a821pglnda", boardA821, 16, 8, 0, 0, 0, 0x0fff,
-	 10000, 500, &range_pcl813b_ai, NULL,
+	 10000, I8254_OSC_BASE_2MHZ, &range_pcl813b_ai, NULL,
 	 0x000c, 0x00, PCLx1x_IORANGE, 0},
 	{"a821pgh", boardA821, 16, 8, 1, 16, 16, 0x0fff,
-	 10000, 500, &range_a821pgh_ai, &range_unipolar5,
+	 10000, I8254_OSC_BASE_2MHZ, &range_a821pgh_ai, &range_unipolar5,
 	 0x000c, 0x00, PCLx1x_IORANGE, 0},
 	{"a822pgl", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
-	 10000, 500, &range_acl8112dg_ai, &range_unipolar5,
+	 10000, I8254_OSC_BASE_2MHZ, &range_acl8112dg_ai, &range_unipolar5,
 	 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
 	{"a822pgh", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
-	 10000, 500, &range_acl8112hg_ai, &range_unipolar5,
+	 10000, I8254_OSC_BASE_2MHZ, &range_acl8112hg_ai, &range_unipolar5,
 	 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
 	{"a823pgl", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
-	 8000, 500, &range_acl8112dg_ai, &range_unipolar5,
+	 8000, I8254_OSC_BASE_2MHZ, &range_acl8112dg_ai, &range_unipolar5,
 	 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
 	{"a823pgh", boardACL8112, 16, 8, 2, 16, 16, 0x0fff,
-	 8000, 500, &range_acl8112hg_ai, &range_unipolar5,
+	 8000, I8254_OSC_BASE_2MHZ, &range_acl8112hg_ai, &range_unipolar5,
 	 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
 	{"pcl813", boardPCL813, 32, 0, 0, 0, 0, 0x0fff,
 	 0, 0, &range_pcl813b_ai, NULL,
@@ -1488,10 +1487,10 @@ static const struct pcl812_board boardtypes[] = {
 	 0, 0, &range_iso813_1_ai, NULL,
 	 0x0000, 0x00, PCLx1x_IORANGE, 0},
 	{"acl8216", boardACL8216, 16, 8, 2, 16, 16, 0xffff,
-	 10000, 500, &range_pcl813b2_ai, &range_unipolar5,
+	 10000, I8254_OSC_BASE_2MHZ, &range_pcl813b2_ai, &range_unipolar5,
 	 0xdcfc, 0x0a, PCLx1x_IORANGE, 1},
 	{"a826pg", boardACL8216, 16, 8, 2, 16, 16, 0xffff,
-	 10000, 500, &range_pcl813b2_ai, &range_unipolar5,
+	 10000, I8254_OSC_BASE_2MHZ, &range_pcl813b2_ai, &range_unipolar5,
 	 0xdcfc, 0x0a, PCLx1x_IORANGE, 0},
 };
 
diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c
index f03134962596..2fd9b178e0c6 100644
--- a/drivers/staging/comedi/drivers/pcl816.c
+++ b/drivers/staging/comedi/drivers/pcl816.c
@@ -481,8 +481,7 @@ static int pcl816_ai_cmdtest(struct comedi_device *dev,
 		tmp = cmd->convert_arg;
 		i8253_cascade_ns_to_timer(board->i8254_osc_base,
 					  &divisor1, &divisor2,
-					  &cmd->convert_arg,
-					  cmd->flags & TRIG_ROUND_MASK);
+					  &cmd->convert_arg, cmd->flags);
 		if (cmd->convert_arg < board->ai_ns_min)
 			cmd->convert_arg = board->ai_ns_min;
 		if (tmp != cmd->convert_arg)
@@ -528,9 +527,9 @@ static int pcl816_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		if (cmd->convert_arg < board->ai_ns_min)
 			cmd->convert_arg = board->ai_ns_min;
 
-		i8253_cascade_ns_to_timer(board->i8254_osc_base, &divisor1,
-					  &divisor2, &cmd->convert_arg,
-					  cmd->flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(board->i8254_osc_base,
+					  &divisor1, &divisor2,
+					  &cmd->convert_arg, cmd->flags);
 
 		/*  PCL816 crash if any divisor is set to 1 */
 		if (divisor1 == 1) {
@@ -1105,7 +1104,7 @@ static const struct pcl816_board boardtypes[] = {
 	 0xffff,		/*  D/A maxdata */
 	 1024,
 	 1,			/*  ao chan list */
-	 100},
+	 I8254_OSC_BASE_10MHZ},
 	{"pcl814b", 8, 16, 10000, 1, 16, 16, &range_pcl816,
 	 &range_pcl816, PCLx1x_RANGE,
 	 0x00fc,
@@ -1114,7 +1113,7 @@ static const struct pcl816_board boardtypes[] = {
 	 0x3fff,
 	 1024,
 	 1,
-	 100},
+	 I8254_OSC_BASE_10MHZ},
 };
 
 static struct comedi_driver pcl816_driver = {
diff --git a/drivers/staging/comedi/drivers/pcl818.c b/drivers/staging/comedi/drivers/pcl818.c
index 33cd4aae884e..7be0c946bd7c 100644
--- a/drivers/staging/comedi/drivers/pcl818.c
+++ b/drivers/staging/comedi/drivers/pcl818.c
@@ -800,8 +800,9 @@ static int pcl818_ai_cmd_mode(int mode, struct comedi_device *dev,
 		devpriv->neverending_ai = 1;	/* well, user want neverending */
 
 	if (mode == 1) {
-		i8253_cascade_ns_to_timer(devpriv->i8253_osc_base, &divisor1,
-					  &divisor2, &cmd->convert_arg,
+		i8253_cascade_ns_to_timer(devpriv->i8253_osc_base,
+					  &divisor1, &divisor2,
+					  &cmd->convert_arg,
 					  TRIG_ROUND_NEAREST);
 		if (divisor1 == 1) {	/* PCL718/818 crash if any divisor is set to 1 */
 			divisor1 = 2;
@@ -1034,9 +1035,9 @@ static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 
 	if (cmd->convert_src == TRIG_TIMER) {
 		tmp = cmd->convert_arg;
-		i8253_cascade_ns_to_timer(devpriv->i8253_osc_base, &divisor1,
-					  &divisor2, &cmd->convert_arg,
-					  cmd->flags & TRIG_ROUND_MASK);
+		i8253_cascade_ns_to_timer(devpriv->i8253_osc_base,
+					  &divisor1, &divisor2,
+					  &cmd->convert_arg, cmd->flags);
 		if (cmd->convert_arg < board->ns_min)
 			cmd->convert_arg = board->ns_min;
 		if (tmp != cmd->convert_arg)
@@ -1432,9 +1433,9 @@ no_dma:
 
 	/* select 1/10MHz oscilator */
 	if ((it->options[3] == 0) || (it->options[3] == 10))
-		devpriv->i8253_osc_base = 100;
+		devpriv->i8253_osc_base = I8254_OSC_BASE_10MHZ;
 	else
-		devpriv->i8253_osc_base = 1000;
+		devpriv->i8253_osc_base = I8254_OSC_BASE_1MHZ;
 
 	/* max sampling speed */
 	devpriv->ns_min = board->ns_min;
-- 
cgit 


From f6aaaac9995084e496d4ff800d092a8c0cb12641 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 26 Sep 2013 19:20:56 +0200
Subject: sh-pfc: r8a7790: add pin definitions for the I2C3 interface

There are four I2C interfaces on r8a7790, each of them can be connected to
one of the two respective I2C controllers, e.g. interface #0 can be
configured to work with I2C0 or with IIC0. Additionally some of those
interfaces can also use one of several pin sets. Interface #3 is special,
because it can be used in automatic mode for DVFS. It only has one set
of pins available and those pins cannot be used for anything else, they
also lack the GPIO function.

This patch uses the sh-pfc ability to configure pins, not associated with
GPIOs and adds support for I2C3 to the r8a7790 PFC set up.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/pinctrl/sh-pfc/pfc-r8a7790.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7790.c b/drivers/pinctrl/sh-pfc/pfc-r8a7790.c
index 5c2657bcc3a4..72786fc93958 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a7790.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a7790.c
@@ -781,6 +781,8 @@ enum {
 	ADICS_SAMP_MARK, DU2_CDE_MARK, QPOLB_MARK, SCIFA2_RXD_B_MARK,
 	USB1_PWEN_MARK, AUDIO_CLKOUT_D_MARK, USB1_OVC_MARK,
 	TCLK1_B_MARK,
+
+	I2C3_SCL_MARK, I2C3_SDA_MARK,
 	PINMUX_MARK_END,
 };
 
@@ -1719,10 +1721,22 @@ static const u16 pinmux_data[] = {
 	PINMUX_IPSR_DATA(IP16_6, AUDIO_CLKOUT_D),
 	PINMUX_IPSR_DATA(IP16_7, USB1_OVC),
 	PINMUX_IPSR_MODSEL_DATA(IP16_7, TCLK1_B, SEL_TMU1_1),
+
+	PINMUX_DATA(I2C3_SCL_MARK, FN_SEL_IICDVFS_1),
+	PINMUX_DATA(I2C3_SDA_MARK, FN_SEL_IICDVFS_1),
 };
 
+/* R8A7790 has 6 banks with 32 GPIOs in each = 192 GPIOs */
+#define ROW_GROUP_A(r) ('Z' - 'A' + 1 + (r))
+#define PIN_NUMBER(r, c) (((r) - 'A') * 31 + (c) + 200)
+#define PIN_A_NUMBER(r, c) PIN_NUMBER(ROW_GROUP_A(r), c)
+
 static struct sh_pfc_pin pinmux_pins[] = {
 	PINMUX_GPIO_GP_ALL(),
+
+	/* Pins not associated with a GPIO port */
+	SH_PFC_PIN_NAMED(ROW_GROUP_A('J'), 15, AJ15),
+	SH_PFC_PIN_NAMED(ROW_GROUP_A('H'), 15, AH15),
 };
 
 /* - DU RGB ----------------------------------------------------------------- */
@@ -2048,6 +2062,14 @@ static const unsigned int i2c2_e_pins[] = {
 static const unsigned int i2c2_e_mux[] = {
 	I2C2_SCL_E_MARK, I2C2_SDA_E_MARK,
 };
+/* - I2C3 ------------------------------------------------------------------- */
+static const unsigned int i2c3_pins[] = {
+	/* SCL, SDA */
+	PIN_A_NUMBER('J', 15), PIN_A_NUMBER('H', 15),
+};
+static const unsigned int i2c3_mux[] = {
+	I2C3_SCL_MARK, I2C3_SDA_MARK,
+};
 /* - INTC ------------------------------------------------------------------- */
 static const unsigned int intc_irq0_pins[] = {
 	/* IRQ */
@@ -3113,6 +3135,7 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
 	SH_PFC_PIN_GROUP(i2c2_c),
 	SH_PFC_PIN_GROUP(i2c2_d),
 	SH_PFC_PIN_GROUP(i2c2_e),
+	SH_PFC_PIN_GROUP(i2c3),
 	SH_PFC_PIN_GROUP(intc_irq0),
 	SH_PFC_PIN_GROUP(intc_irq1),
 	SH_PFC_PIN_GROUP(intc_irq2),
@@ -3323,6 +3346,10 @@ static const char * const i2c2_groups[] = {
 	"i2c2_e",
 };
 
+static const char * const i2c3_groups[] = {
+	"i2c3",
+};
+
 static const char * const intc_groups[] = {
 	"intc_irq0",
 	"intc_irq1",
@@ -3551,6 +3578,7 @@ static const struct sh_pfc_function pinmux_functions[] = {
 	SH_PFC_FUNCTION(hscif1),
 	SH_PFC_FUNCTION(i2c1),
 	SH_PFC_FUNCTION(i2c2),
+	SH_PFC_FUNCTION(i2c3),
 	SH_PFC_FUNCTION(intc),
 	SH_PFC_FUNCTION(mmc0),
 	SH_PFC_FUNCTION(mmc1),
-- 
cgit 


From ad07d8b489b07510d98773472d2a3023701f88b6 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 5 Aug 2013 14:32:03 +0530
Subject: extcon: max8997: Fix checkpatch warning

Fixes the following warning:
WARNING: space prohibited before semicolon

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---
 drivers/extcon/extcon-max8997.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
index 67d6738d85a0..e55ec38b4148 100644
--- a/drivers/extcon/extcon-max8997.c
+++ b/drivers/extcon/extcon-max8997.c
@@ -537,7 +537,7 @@ static void max8997_muic_irq_work(struct work_struct *work)
 
 	mutex_lock(&info->mutex);
 
-	for (i = 0 ; i < ARRAY_SIZE(muic_irqs) ; i++)
+	for (i = 0; i < ARRAY_SIZE(muic_irqs); i++)
 		if (info->irq == muic_irqs[i].virq)
 			irq_type = muic_irqs[i].irq;
 
-- 
cgit 


From cb9005d7dacb83ba92f39fe6d2a9c0c06ca50cb3 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Wed, 7 Aug 2013 12:17:14 +0100
Subject: extcon: arizona: Clear trig_sts bits on all paths

We want the trig_sts bits to be cleared in all cases where we consider
the jack detection interrupt to have been handled. Specifically, if a
duplicate detection event was suppressed these bits were not cleared
causing the CODEC to not enter a low power state. This patch clears the
bits on the duplicate detection code path.

Reported-by: Ryo Tsutsui <ryo.tsutsui@wolfsonmicro.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---
 drivers/extcon/extcon-arizona.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index e55713083c78..4696df0946ed 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -1039,6 +1039,7 @@ static irqreturn_t arizona_jackdet(int irq, void *data)
 	else
 		info->micd_timeout = DEFAULT_MICD_TIMEOUT;
 
+out:
 	/* Clear trig_sts to make sure DCVDD is not forced up */
 	regmap_write(arizona->regmap, ARIZONA_AOD_WKUP_AND_TRIG,
 		     ARIZONA_MICD_CLAMP_FALL_TRIG_STS |
@@ -1046,7 +1047,6 @@ static irqreturn_t arizona_jackdet(int irq, void *data)
 		     ARIZONA_JD1_FALL_TRIG_STS |
 		     ARIZONA_JD1_RISE_TRIG_STS);
 
-out:
 	mutex_unlock(&info->lock);
 
 	pm_runtime_mark_last_busy(info->dev);
-- 
cgit 


From d97abdde1753d4608766a8b7a3661d3b70117054 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 5 Aug 2013 14:30:46 +0530
Subject: extcon: arizona: Fix a typo in a comment

Fixes an incomplete comment introduced by commit 9c2ba270
("extcon: arizona: Simplify HPDET based identification").

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---
 drivers/extcon/extcon-arizona.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index 4696df0946ed..2064eac1b92b 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -514,7 +514,7 @@ static int arizona_hpdet_do_id(struct arizona_extcon_info *info, int *reading,
 		}
 
 		/*
-		 * If we measure the mic as 
+		 * If we measure the mic as high impedance
 		 */
 		if (!id_gpio || info->hpdet_res[1] > 50) {
 			dev_dbg(arizona->dev, "Detected mic\n");
-- 
cgit 


From a33411b26e43d67d361298a822ecfd76a177183f Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 5 Aug 2013 14:32:04 +0530
Subject: extcon: max77693: Fix checkpatch warning

Fixes the following warning:
WARNING: space prohibited before semicolon

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---
 drivers/extcon/extcon-max77693.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index b56bdaa27d4b..4849ea1e92f6 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -953,7 +953,7 @@ static void max77693_muic_irq_work(struct work_struct *work)
 
 	mutex_lock(&info->mutex);
 
-	for (i = 0 ; i < ARRAY_SIZE(muic_irqs) ; i++)
+	for (i = 0; i < ARRAY_SIZE(muic_irqs); i++)
 		if (info->irq == muic_irqs[i].virq)
 			irq_type = muic_irqs[i].irq;
 
@@ -1188,7 +1188,7 @@ static int max77693_muic_probe(struct platform_device *pdev)
 		num_init_data = ARRAY_SIZE(default_init_data);
 	}
 
-	for (i = 0 ; i < num_init_data ; i++) {
+	for (i = 0; i < num_init_data; i++) {
 		enum max77693_irq_source irq_src
 				= MAX77693_IRQ_GROUP_NR;
 
-- 
cgit 


From a75e1c73a46eed0332d036e371f714e76d167c07 Mon Sep 17 00:00:00 2001
From: Chanwoo Choi <cw00.choi@samsung.com>
Date: Sat, 31 Aug 2013 13:16:49 +0900
Subject: extcon: Fix indentation coding style to improve readability

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
---
 drivers/extcon/extcon-adc-jack.c       | 20 +++++-----
 drivers/extcon/extcon-class.c          | 26 ++++++-------
 include/linux/extcon.h                 | 67 ++++++++++++++++++----------------
 include/linux/extcon/extcon-adc-jack.h | 42 ++++++++++-----------
 include/linux/extcon/extcon-gpio.h     | 16 ++++----
 5 files changed, 87 insertions(+), 84 deletions(-)

diff --git a/drivers/extcon/extcon-adc-jack.c b/drivers/extcon/extcon-adc-jack.c
index 5985807e52c9..5d16428afd53 100644
--- a/drivers/extcon/extcon-adc-jack.c
+++ b/drivers/extcon/extcon-adc-jack.c
@@ -27,16 +27,16 @@
 
 /**
  * struct adc_jack_data - internal data for adc_jack device driver
- * @edev        - extcon device.
- * @cable_names - list of supported cables.
- * @num_cables  - size of cable_names.
- * @adc_conditions       - list of adc value conditions.
- * @num_conditions       - size of adc_conditions.
- * @irq         - irq number of attach/detach event (0 if not exist).
- * @handling_delay      - interrupt handler will schedule extcon event
- *                      handling at handling_delay jiffies.
- * @handler     - extcon event handler called by interrupt handler.
- * @chan       - iio channel being queried.
+ * @edev:		extcon device.
+ * @cable_names:	list of supported cables.
+ * @num_cables:		size of cable_names.
+ * @adc_conditions:	list of adc value conditions.
+ * @num_conditions:	size of adc_conditions.
+ * @irq:		irq number of attach/detach event (0 if not exist).
+ * @handling_delay:	interrupt handler will schedule extcon event
+ *			handling at handling_delay jiffies.
+ * @handler:		extcon event handler called by interrupt handler.
+ * @chan:		iio channel being queried.
  */
 struct adc_jack_data {
 	struct extcon_dev edev;
diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c
index 148382faded9..a29720822847 100644
--- a/drivers/extcon/extcon-class.c
+++ b/drivers/extcon/extcon-class.c
@@ -74,7 +74,7 @@ static DEFINE_MUTEX(extcon_dev_list_lock);
 
 /**
  * check_mutually_exclusive - Check if new_state violates mutually_exclusive
- *			    condition.
+ *			      condition.
  * @edev:	the extcon device
  * @new_state:	new cable attach status for @edev
  *
@@ -189,7 +189,7 @@ static ssize_t cable_state_show(struct device *dev,
 
 /**
  * extcon_update_state() - Update the cable attach states of the extcon device
- *			only for the masked bits.
+ *			   only for the masked bits.
  * @edev:	the extcon device
  * @mask:	the bit mask to designate updated bits.
  * @state:	new cable attach status for @edev
@@ -227,7 +227,6 @@ int extcon_update_state(struct extcon_dev *edev, u32 mask, u32 state)
 		edev->state |= state & mask;
 
 		raw_notifier_call_chain(&edev->nh, old_state, edev);
-
 		/* This could be in interrupt handler */
 		prop_buf = (char *)get_zeroed_page(GFP_ATOMIC);
 		if (prop_buf) {
@@ -339,8 +338,9 @@ EXPORT_SYMBOL_GPL(extcon_get_cable_state);
 
 /**
  * extcon_set_cable_state_() - Set the status of a specific cable.
- * @edev:	the extcon device that has the cable.
- * @index:	cable index that can be retrieved by extcon_find_cable_index().
+ * @edev:		the extcon device that has the cable.
+ * @index:		cable index that can be retrieved by
+ *			extcon_find_cable_index().
  * @cable_state:	the new cable status. The default semantics is
  *			true: attached / false: detached.
  */
@@ -359,8 +359,8 @@ EXPORT_SYMBOL_GPL(extcon_set_cable_state_);
 
 /**
  * extcon_set_cable_state() - Set the status of a specific cable.
- * @edev:	the extcon device that has the cable.
- * @cable_name:	cable name.
+ * @edev:		the extcon device that has the cable.
+ * @cable_name:		cable name.
  * @cable_state:	the new cable status. The default semantics is
  *			true: attached / false: detached.
  *
@@ -419,14 +419,14 @@ static int _call_per_cable(struct notifier_block *nb, unsigned long val,
 
 /**
  * extcon_register_interest() - Register a notifier for a state change of a
- *			      specific cable, not an entier set of cables of a
- *			      extcon device.
- * @obj:	an empty extcon_specific_cable_nb object to be returned.
+ *				specific cable, not an entier set of cables of a
+ *				extcon device.
+ * @obj:		an empty extcon_specific_cable_nb object to be returned.
  * @extcon_name:	the name of extcon device.
  *			if NULL, extcon_register_interest will register
  *			every cable with the target cable_name given.
  * @cable_name:		the target cable name.
- * @nb:		the notifier block to get notified.
+ * @nb:			the notifier block to get notified.
  *
  * Provide an empty extcon_specific_cable_nb. extcon_register_interest() sets
  * the struct for you.
@@ -487,7 +487,7 @@ EXPORT_SYMBOL_GPL(extcon_register_interest);
 
 /**
  * extcon_unregister_interest() - Unregister the notifier registered by
- *				extcon_register_interest().
+ *				  extcon_register_interest().
  * @obj:	the extcon_specific_cable_nb object returned by
  *		extcon_register_interest().
  */
@@ -502,7 +502,7 @@ EXPORT_SYMBOL_GPL(extcon_unregister_interest);
 
 /**
  * extcon_register_notifier() - Register a notifiee to get notified by
- *			      any attach status changes from the extcon.
+ *				any attach status changes from the extcon.
  * @edev:	the extcon device.
  * @nb:		a notifier block to be registered.
  *
diff --git a/include/linux/extcon.h b/include/linux/extcon.h
index fcb51c88319f..c2b652dde72c 100644
--- a/include/linux/extcon.h
+++ b/include/linux/extcon.h
@@ -51,10 +51,10 @@
 enum extcon_cable_name {
 	EXTCON_USB = 0,
 	EXTCON_USB_HOST,
-	EXTCON_TA, /* Travel Adaptor */
+	EXTCON_TA,			/* Travel Adaptor */
 	EXTCON_FAST_CHARGER,
 	EXTCON_SLOW_CHARGER,
-	EXTCON_CHARGE_DOWNSTREAM, /* Charging an external device */
+	EXTCON_CHARGE_DOWNSTREAM,	/* Charging an external device */
 	EXTCON_HDMI,
 	EXTCON_MHL,
 	EXTCON_DVI,
@@ -76,8 +76,8 @@ struct extcon_cable;
 
 /**
  * struct extcon_dev - An extcon device represents one external connector.
- * @name:	The name of this extcon device. Parent device name is used
- *		if NULL.
+ * @name:		The name of this extcon device. Parent device name is
+ *			used if NULL.
  * @supported_cable:	Array of supported cable names ending with NULL.
  *			If supported_cable is NULL, cable name related APIs
  *			are disabled.
@@ -89,21 +89,21 @@ struct extcon_cable;
  *			be attached simulataneously. {0x7, 0} is equivalent to
  *			{0x3, 0x6, 0x5, 0}. If it is {0xFFFFFFFF, 0}, there
  *			can be no simultaneous connections.
- * @print_name:	An optional callback to override the method to print the
- *		name of the extcon device.
+ * @print_name:		An optional callback to override the method to print the
+ *			name of the extcon device.
  * @print_state:	An optional callback to override the method to print the
- *		status of the extcon device.
- * @dev:	Device of this extcon. Do not provide at register-time.
- * @state:	Attach/detach state of this extcon. Do not provide at
- *		register-time
- * @nh:	Notifier for the state change events from this extcon
- * @entry:	To support list of extcon devices so that users can search
- *		for extcon devices based on the extcon name.
+ *			status of the extcon device.
+ * @dev:		Device of this extcon. Do not provide at register-time.
+ * @state:		Attach/detach state of this extcon. Do not provide at
+ *			register-time.
+ * @nh:			Notifier for the state change events from this extcon
+ * @entry:		To support list of extcon devices so that users can search
+ *			for extcon devices based on the extcon name.
  * @lock:
  * @max_supported:	Internal value to store the number of cables.
  * @extcon_dev_type:	Device_type struct to provide attribute_groups
  *			customized for each extcon device.
- * @cables:	Sysfs subdirectories. Each represents one cable.
+ * @cables:		Sysfs subdirectories. Each represents one cable.
  *
  * In most cases, users only need to provide "User initializing data" of
  * this struct when registering an extcon. In some exceptional cases,
@@ -111,26 +111,27 @@ struct extcon_cable;
  * are overwritten by register function.
  */
 struct extcon_dev {
-	/* --- Optional user initializing data --- */
-	const char	*name;
+	/* Optional user initializing data */
+	const char *name;
 	const char **supported_cable;
-	const u32	*mutually_exclusive;
+	const u32 *mutually_exclusive;
 
-	/* --- Optional callbacks to override class functions --- */
+	/* Optional callbacks to override class functions */
 	ssize_t	(*print_name)(struct extcon_dev *edev, char *buf);
 	ssize_t	(*print_state)(struct extcon_dev *edev, char *buf);
 
-	/* --- Internal data. Please do not set. --- */
-	struct device	*dev;
-	u32		state;
+	/* Internal data. Please do not set. */
+	struct device *dev;
 	struct raw_notifier_head nh;
 	struct list_head entry;
-	spinlock_t lock; /* could be called by irq handler */
 	int max_supported;
+	spinlock_t lock;	/* could be called by irq handler */
+	u32 state;
 
 	/* /sys/class/extcon/.../cable.n/... */
 	struct device_type extcon_dev_type;
 	struct extcon_cable *cables;
+
 	/* /sys/class/extcon/.../mutually_exclusive/... */
 	struct attribute_group attr_g_muex;
 	struct attribute **attrs_muex;
@@ -138,13 +139,13 @@ struct extcon_dev {
 };
 
 /**
- * struct extcon_cable	- An internal data for each cable of extcon device.
- * @edev:	The extcon device
+ * struct extcon_cable - An internal data for each cable of extcon device.
+ * @edev:		The extcon device
  * @cable_index:	Index of this cable in the edev
- * @attr_g:	Attribute group for the cable
- * @attr_name:	"name" sysfs entry
- * @attr_state:	"state" sysfs entry
- * @attrs:	Array pointing to attr_name and attr_state for attr_g
+ * @attr_g:		Attribute group for the cable
+ * @attr_name:		"name" sysfs entry
+ * @attr_state:		"state" sysfs entry
+ * @attrs:		Array pointing to attr_name and attr_state for attr_g
  */
 struct extcon_cable {
 	struct extcon_dev *edev;
@@ -159,11 +160,13 @@ struct extcon_cable {
 
 /**
  * struct extcon_specific_cable_nb - An internal data for
- *				extcon_register_interest().
- * @internal_nb:	a notifier block bridging extcon notifier and cable notifier.
- * @user_nb:	user provided notifier block for events from a specific cable.
+ *				     extcon_register_interest().
+ * @internal_nb:	A notifier block bridging extcon notifier
+ *			and cable notifier.
+ * @user_nb:		user provided notifier block for events from
+ *			a specific cable.
  * @cable_index:	the target cable.
- * @edev:	the target extcon device.
+ * @edev:		the target extcon device.
  * @previous_value:	the saved previous event value.
  */
 struct extcon_specific_cable_nb {
diff --git a/include/linux/extcon/extcon-adc-jack.h b/include/linux/extcon/extcon-adc-jack.h
index 20e9eef25d4c..9ca958c4e94c 100644
--- a/include/linux/extcon/extcon-adc-jack.h
+++ b/include/linux/extcon/extcon-adc-jack.h
@@ -20,10 +20,10 @@
 
 /**
  * struct adc_jack_cond - condition to use an extcon state
- * @state      - the corresponding extcon state (if 0, this struct denotes
- *             the last adc_jack_cond element among the array)
- * @min_adc    - min adc value for this condition
- * @max_adc    - max adc value for this condition
+ * @state:		the corresponding extcon state (if 0, this struct
+ *			denotes the last adc_jack_cond element among the array)
+ * @min_adc:		min adc value for this condition
+ * @max_adc:		max adc value for this condition
  *
  * For example, if { .state = 0x3, .min_adc = 100, .max_adc = 200}, it means
  * that if ADC value is between (inclusive) 100 and 200, than the cable 0 and
@@ -33,34 +33,34 @@
  * because when no adc_jack_cond is met, state = 0 is automatically chosen.
  */
 struct adc_jack_cond {
-	u32 state; /* extcon state value. 0 if invalid */
+	u32 state;	/* extcon state value. 0 if invalid */
 	u32 min_adc;
 	u32 max_adc;
 };
 
 /**
  * struct adc_jack_pdata - platform data for adc jack device.
- * @name       - name of the extcon device. If null, "adc-jack" is used.
- * @consumer_channel - Unique name to identify the channel on the consumer
- *                   side. This typically describes the channels used within
- *                   the consumer. E.g. 'battery_voltage'
- * @cable_names        - array of cable names ending with null.
- * @adc_contitions     - array of struct adc_jack_cond conditions ending
- *                     with .state = 0 entry. This describes how to decode
- *                     adc values into extcon state.
- * @irq_flags  - irq flags used for the @irq
- * @handling_delay_ms  - in some devices, we need to read ADC value some
- *                     milli-seconds after the interrupt occurs. You may
- *                     describe such delays with @handling_delay_ms, which
- *                     is rounded-off by jiffies.
+ * @name:		name of the extcon device. If null, "adc-jack" is used.
+ * @consumer_channel:	Unique name to identify the channel on the consumer
+ *			side. This typically describes the channels used within
+ *			the consumer. E.g. 'battery_voltage'
+ * @cable_names:	array of cable names ending with null.
+ * @adc_contitions:	array of struct adc_jack_cond conditions ending
+ *			with .state = 0 entry. This describes how to decode
+ *			adc values into extcon state.
+ * @irq_flags:		irq flags used for the @irq
+ * @handling_delay_ms:	in some devices, we need to read ADC value some
+ *			milli-seconds after the interrupt occurs. You may
+ *			describe such delays with @handling_delay_ms, which
+ *			is rounded-off by jiffies.
  */
 struct adc_jack_pdata {
 	const char *name;
 	const char *consumer_channel;
-	/*
-	 * The last entry should be NULL
-	 */
+
+	/* The last entry should be NULL */
 	const char **cable_names;
+
 	/* The last entry's state should be 0 */
 	struct adc_jack_cond *adc_conditions;
 
diff --git a/include/linux/extcon/extcon-gpio.h b/include/linux/extcon/extcon-gpio.h
index 2d8307f7d67d..4ce1aa7d29bd 100644
--- a/include/linux/extcon/extcon-gpio.h
+++ b/include/linux/extcon/extcon-gpio.h
@@ -25,14 +25,14 @@
 
 /**
  * struct gpio_extcon_platform_data - A simple GPIO-controlled extcon device.
- * @name	The name of this GPIO extcon device.
- * @gpio	Corresponding GPIO.
- * @debounce	Debounce time for GPIO IRQ in ms.
- * @irq_flags	IRQ Flags (e.g., IRQF_TRIGGER_LOW).
- * @state_on	print_state is overriden with state_on if attached. If Null,
- *		default method of extcon class is used.
- * @state_off	print_state is overriden with state_on if detached. If Null,
- *		default method of extcon class is used.
+ * @name:		The name of this GPIO extcon device.
+ * @gpio:		Corresponding GPIO.
+ * @debounce:		Debounce time for GPIO IRQ in ms.
+ * @irq_flags:		IRQ Flags (e.g., IRQF_TRIGGER_LOW).
+ * @state_on:		print_state is overriden with state_on if attached.
+ *			If NULL, default method of extcon class is used.
+ * @state_off:		print_state is overriden with state_on if detached.
+ *			If NUll, default method of extcon class is used.
  *
  * Note that in order for state_on or state_off to be valid, both state_on
  * and state_off should be not NULL. If at least one of them is NULL,
-- 
cgit 


From cb8bb3a77252bd431997a61456689c778510447c Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 14:33:32 +0900
Subject: extcon: Remove casting the return value which is a void pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---
 drivers/extcon/extcon-class.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c
index a29720822847..2f2d374ccd1d 100644
--- a/drivers/extcon/extcon-class.c
+++ b/drivers/extcon/extcon-class.c
@@ -105,7 +105,7 @@ static ssize_t state_show(struct device *dev, struct device_attribute *attr,
 			  char *buf)
 {
 	int i, count = 0;
-	struct extcon_dev *edev = (struct extcon_dev *) dev_get_drvdata(dev);
+	struct extcon_dev *edev = dev_get_drvdata(dev);
 
 	if (edev->print_state) {
 		int ret = edev->print_state(edev, buf);
@@ -135,7 +135,7 @@ static ssize_t state_store(struct device *dev, struct device_attribute *attr,
 {
 	u32 state;
 	ssize_t ret = 0;
-	struct extcon_dev *edev = (struct extcon_dev *) dev_get_drvdata(dev);
+	struct extcon_dev *edev = dev_get_drvdata(dev);
 
 	ret = sscanf(buf, "0x%x", &state);
 	if (ret == 0)
@@ -153,7 +153,7 @@ static DEVICE_ATTR_RW(state);
 static ssize_t name_show(struct device *dev, struct device_attribute *attr,
 		char *buf)
 {
-	struct extcon_dev *edev = (struct extcon_dev *) dev_get_drvdata(dev);
+	struct extcon_dev *edev = dev_get_drvdata(dev);
 
 	/* Optional callback given by the user */
 	if (edev->print_name) {
@@ -470,7 +470,7 @@ int extcon_register_interest(struct extcon_specific_cable_nb *obj,
 			return -ENODEV;
 		class_dev_iter_init(&iter, extcon_class, NULL, NULL);
 		while ((dev = class_dev_iter_next(&iter))) {
-			extd = (struct extcon_dev *)dev_get_drvdata(dev);
+			extd = dev_get_drvdata(dev);
 
 			if (extcon_find_cable_index(extd, cable_name) < 0)
 				continue;
-- 
cgit 


From 1073514b11c221081c7c1f4a14b3eee5365385fa Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Thu, 29 Aug 2013 21:29:33 -0700
Subject: extcon: gpio: Do not unnecessarily initialize variables

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---
 drivers/extcon/extcon-gpio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c
index f874c30ddbff..6368a0f3ae6d 100644
--- a/drivers/extcon/extcon-gpio.c
+++ b/drivers/extcon/extcon-gpio.c
@@ -80,7 +80,7 @@ static int gpio_extcon_probe(struct platform_device *pdev)
 {
 	struct gpio_extcon_platform_data *pdata = pdev->dev.platform_data;
 	struct gpio_extcon_data *extcon_data;
-	int ret = 0;
+	int ret;
 
 	if (!pdata)
 		return -EBUSY;
-- 
cgit 


From 338de0ca682ca95d3f6185459e11540c37dd8a2a Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Tue, 10 Sep 2013 19:16:18 -0700
Subject: extcon: gpio: Use gpio driver/chip debounce if supported

This patch use gpio_set_debounce() API provided from gpiolib if SoC or device
driver with gpio support gpio_set_debounce() function.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---
 drivers/extcon/extcon-gpio.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c
index 6368a0f3ae6d..862743bc825f 100644
--- a/drivers/extcon/extcon-gpio.c
+++ b/drivers/extcon/extcon-gpio.c
@@ -100,7 +100,13 @@ static int gpio_extcon_probe(struct platform_device *pdev)
 	extcon_data->state_off = pdata->state_off;
 	if (pdata->state_on && pdata->state_off)
 		extcon_data->edev.print_state = extcon_gpio_print_state;
-	extcon_data->debounce_jiffies = msecs_to_jiffies(pdata->debounce);
+	if (pdata->debounce) {
+		ret = gpio_set_debounce(extcon_data->gpio,
+					pdata->debounce * 1000);
+		if (ret < 0)
+			extcon_data->debounce_jiffies =
+				msecs_to_jiffies(pdata->debounce);
+	}
 
 	ret = extcon_dev_register(&extcon_data->edev, &pdev->dev);
 	if (ret < 0)
-- 
cgit 


From 7c0f6558f893eb5eddb52ee0fa84c2d43b2c199a Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 11 Sep 2013 13:22:18 +0900
Subject: extcon: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly. This is a cosmetic change
to make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---
 drivers/extcon/extcon-adc-jack.c | 2 +-
 drivers/extcon/extcon-gpio.c     | 2 +-
 drivers/extcon/extcon-palmas.c   | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/extcon/extcon-adc-jack.c b/drivers/extcon/extcon-adc-jack.c
index 5d16428afd53..5694c468b958 100644
--- a/drivers/extcon/extcon-adc-jack.c
+++ b/drivers/extcon/extcon-adc-jack.c
@@ -95,7 +95,7 @@ static irqreturn_t adc_jack_irq_thread(int irq, void *_data)
 static int adc_jack_probe(struct platform_device *pdev)
 {
 	struct adc_jack_data *data;
-	struct adc_jack_pdata *pdata = pdev->dev.platform_data;
+	struct adc_jack_pdata *pdata = dev_get_platdata(&pdev->dev);
 	int i, err = 0;
 
 	data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c
index 862743bc825f..cd7dbb60f60f 100644
--- a/drivers/extcon/extcon-gpio.c
+++ b/drivers/extcon/extcon-gpio.c
@@ -78,7 +78,7 @@ static ssize_t extcon_gpio_print_state(struct extcon_dev *edev, char *buf)
 
 static int gpio_extcon_probe(struct platform_device *pdev)
 {
-	struct gpio_extcon_platform_data *pdata = pdev->dev.platform_data;
+	struct gpio_extcon_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct gpio_extcon_data *extcon_data;
 	int ret;
 
diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c
index 89fdd05c5fd6..0c2fb68fb791 100644
--- a/drivers/extcon/extcon-palmas.c
+++ b/drivers/extcon/extcon-palmas.c
@@ -135,7 +135,7 @@ static void palmas_enable_irq(struct palmas_usb *palmas_usb)
 static int palmas_usb_probe(struct platform_device *pdev)
 {
 	struct palmas *palmas = dev_get_drvdata(pdev->dev.parent);
-	struct palmas_usb_platform_data	*pdata = pdev->dev.platform_data;
+	struct palmas_usb_platform_data	*pdata = dev_get_platdata(&pdev->dev);
 	struct device_node *node = pdev->dev.of_node;
 	struct palmas_usb *palmas_usb;
 	int status;
-- 
cgit 


From 5bfbdc9caa7e16b2a77a62a9f9a63b5693e23716 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Thu, 12 Sep 2013 08:49:54 +0900
Subject: extcon: gpio: Add support for active-low presence to detect pins

This patch add 'gpio_active_low' field to 'struct gpio_extcon_data'
to check whether gpio active state is 1(high) or 0(low).

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---
 drivers/extcon/extcon-gpio.c       | 4 ++++
 include/linux/extcon/extcon-gpio.h | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c
index cd7dbb60f60f..b02c670ef01d 100644
--- a/drivers/extcon/extcon-gpio.c
+++ b/drivers/extcon/extcon-gpio.c
@@ -34,6 +34,7 @@
 struct gpio_extcon_data {
 	struct extcon_dev edev;
 	unsigned gpio;
+	bool gpio_active_low;
 	const char *state_on;
 	const char *state_off;
 	int irq;
@@ -49,6 +50,8 @@ static void gpio_extcon_work(struct work_struct *work)
 			     work);
 
 	state = gpio_get_value(data->gpio);
+	if (data->gpio_active_low)
+		state = !state;
 	extcon_set_state(&data->edev, state);
 }
 
@@ -96,6 +99,7 @@ static int gpio_extcon_probe(struct platform_device *pdev)
 
 	extcon_data->edev.name = pdata->name;
 	extcon_data->gpio = pdata->gpio;
+	extcon_data->gpio_active_low = pdata->gpio_active_low;
 	extcon_data->state_on = pdata->state_on;
 	extcon_data->state_off = pdata->state_off;
 	if (pdata->state_on && pdata->state_off)
diff --git a/include/linux/extcon/extcon-gpio.h b/include/linux/extcon/extcon-gpio.h
index 4ce1aa7d29bd..4195810f87fe 100644
--- a/include/linux/extcon/extcon-gpio.h
+++ b/include/linux/extcon/extcon-gpio.h
@@ -27,6 +27,9 @@
  * struct gpio_extcon_platform_data - A simple GPIO-controlled extcon device.
  * @name:		The name of this GPIO extcon device.
  * @gpio:		Corresponding GPIO.
+ * @gpio_active_low:	Boolean describing whether gpio active state is 1 or 0
+ *			If true, low state of gpio means active.
+ *			If false, high state of gpio means active.
  * @debounce:		Debounce time for GPIO IRQ in ms.
  * @irq_flags:		IRQ Flags (e.g., IRQF_TRIGGER_LOW).
  * @state_on:		print_state is overriden with state_on if attached.
@@ -41,6 +44,7 @@
 struct gpio_extcon_platform_data {
 	const char *name;
 	unsigned gpio;
+	bool gpio_active_low;
 	unsigned long debounce;
 	unsigned long irq_flags;
 
-- 
cgit 


From 4ba1a9ff5955df443a0ed6c956501f796a18abfa Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Mon, 23 Sep 2013 14:33:58 +0100
Subject: extcon: arizona: Correct typo in headphone detect range transitions

We should move range when the measured value is greater than or equal to
the max value not when greater than.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---
 drivers/extcon/extcon-arizona.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index 2064eac1b92b..1878415bd1ae 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -388,7 +388,7 @@ static int arizona_hpdet_read(struct arizona_extcon_info *info)
 			   >> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT;
 
 		if (range < ARRAY_SIZE(arizona_hpdet_b_ranges) - 1 &&
-		    (val < 100 || val > 0x3fb)) {
+		    (val < 100 || val >= 0x3fb)) {
 			range++;
 			dev_dbg(arizona->dev, "Moving to HPDET range %d\n",
 				range);
@@ -401,7 +401,7 @@ static int arizona_hpdet_read(struct arizona_extcon_info *info)
 		}
 
 		/* If we go out of range report top of range */
-		if (val < 100 || val > 0x3fb) {
+		if (val < 100 || val >= 0x3fb) {
 			dev_dbg(arizona->dev, "Measurement out of range\n");
 			return ARIZONA_HPDET_MAX;
 		}
-- 
cgit 


From 4102424302b313516d11a325e2ba614deec526a2 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Mon, 23 Sep 2013 14:33:59 +0100
Subject: extcon: arizona: Don't require micbias to be shifted in pdata

Every other pdata field is specified unshifted the patch handles
shifting for the MICBIAS from the microphone detection polarity
configurations in the extcon driver rather than demanding it in
pdata to match other fields.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---
 drivers/extcon/extcon-arizona.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index 1878415bd1ae..e54ce08f669c 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -86,8 +86,8 @@ struct arizona_extcon_info {
 };
 
 static const struct arizona_micd_config micd_default_modes[] = {
-	{ ARIZONA_ACCDET_SRC, 1 << ARIZONA_MICD_BIAS_SRC_SHIFT, 0 },
-	{ 0,                  2 << ARIZONA_MICD_BIAS_SRC_SHIFT, 1 },
+	{ ARIZONA_ACCDET_SRC, 1, 0 },
+	{ 0,                  2, 1 },
 };
 
 static const struct arizona_micd_range micd_default_ranges[] = {
@@ -182,7 +182,8 @@ static void arizona_extcon_set_mode(struct arizona_extcon_info *info, int mode)
 					info->micd_modes[mode].gpio);
 	regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
 			   ARIZONA_MICD_BIAS_SRC_MASK,
-			   info->micd_modes[mode].bias);
+			   info->micd_modes[mode].bias <<
+			   ARIZONA_MICD_BIAS_SRC_SHIFT);
 	regmap_update_bits(arizona->regmap, ARIZONA_ACCESSORY_DETECT_MODE_1,
 			   ARIZONA_ACCDET_SRC, info->micd_modes[mode].src);
 
@@ -193,7 +194,7 @@ static void arizona_extcon_set_mode(struct arizona_extcon_info *info, int mode)
 
 static const char *arizona_extcon_get_micbias(struct arizona_extcon_info *info)
 {
-	switch (info->micd_modes[0].bias >> ARIZONA_MICD_BIAS_SRC_SHIFT) {
+	switch (info->micd_modes[0].bias) {
 	case 1:
 		return "MICBIAS1";
 	case 2:
-- 
cgit 


From dae616512476024aa61d2a598461ab6eff8c0709 Mon Sep 17 00:00:00 2001
From: Chanwoo Choi <cw00.choi@samsung.com>
Date: Fri, 27 Sep 2013 09:19:40 +0900
Subject: extcon: Change field type of 'dev' in extcon_dev structure

The extcon device must always need 'struct device' so this patch change
field type of 'dev' instead of allocating memory for 'struct device' on
extcon_dev_register() function.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <cw00.choi@samsung.com>
---
 drivers/extcon/extcon-adc-jack.c |  2 +-
 drivers/extcon/extcon-class.c    | 52 ++++++++++++++++++----------------------
 include/linux/extcon.h           |  4 ++--
 3 files changed, 26 insertions(+), 32 deletions(-)

diff --git a/drivers/extcon/extcon-adc-jack.c b/drivers/extcon/extcon-adc-jack.c
index 5694c468b958..dcbade667d0c 100644
--- a/drivers/extcon/extcon-adc-jack.c
+++ b/drivers/extcon/extcon-adc-jack.c
@@ -64,7 +64,7 @@ static void adc_jack_handler(struct work_struct *work)
 
 	ret = iio_read_channel_raw(data->chan, &adc_val);
 	if (ret < 0) {
-		dev_err(data->edev.dev, "read channel() error: %d\n", ret);
+		dev_err(&data->edev.dev, "read channel() error: %d\n", ret);
 		return;
 	}
 
diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c
index 2f2d374ccd1d..2801c14d5232 100644
--- a/drivers/extcon/extcon-class.c
+++ b/drivers/extcon/extcon-class.c
@@ -162,7 +162,7 @@ static ssize_t name_show(struct device *dev, struct device_attribute *attr,
 			return ret;
 	}
 
-	return sprintf(buf, "%s\n", dev_name(edev->dev));
+	return sprintf(buf, "%s\n", dev_name(&edev->dev));
 }
 static DEVICE_ATTR_RO(name);
 
@@ -230,7 +230,7 @@ int extcon_update_state(struct extcon_dev *edev, u32 mask, u32 state)
 		/* This could be in interrupt handler */
 		prop_buf = (char *)get_zeroed_page(GFP_ATOMIC);
 		if (prop_buf) {
-			length = name_show(edev->dev, NULL, prop_buf);
+			length = name_show(&edev->dev, NULL, prop_buf);
 			if (length > 0) {
 				if (prop_buf[length - 1] == '\n')
 					prop_buf[length - 1] = 0;
@@ -238,7 +238,7 @@ int extcon_update_state(struct extcon_dev *edev, u32 mask, u32 state)
 					"NAME=%s", prop_buf);
 				envp[env_offset++] = name_buf;
 			}
-			length = state_show(edev->dev, NULL, prop_buf);
+			length = state_show(&edev->dev, NULL, prop_buf);
 			if (length > 0) {
 				if (prop_buf[length - 1] == '\n')
 					prop_buf[length - 1] = 0;
@@ -250,14 +250,14 @@ int extcon_update_state(struct extcon_dev *edev, u32 mask, u32 state)
 			/* Unlock early before uevent */
 			spin_unlock_irqrestore(&edev->lock, flags);
 
-			kobject_uevent_env(&edev->dev->kobj, KOBJ_CHANGE, envp);
+			kobject_uevent_env(&edev->dev.kobj, KOBJ_CHANGE, envp);
 			free_page((unsigned long)prop_buf);
 		} else {
 			/* Unlock early before uevent */
 			spin_unlock_irqrestore(&edev->lock, flags);
 
-			dev_err(edev->dev, "out of memory in extcon_set_state\n");
-			kobject_uevent(&edev->dev->kobj, KOBJ_CHANGE);
+			dev_err(&edev->dev, "out of memory in extcon_set_state\n");
+			kobject_uevent(&edev->dev.kobj, KOBJ_CHANGE);
 		}
 	} else {
 		/* No changes */
@@ -556,7 +556,6 @@ static int create_extcon_class(void)
 
 static void extcon_dev_release(struct device *dev)
 {
-	kfree(dev);
 }
 
 static const char *muex_name = "mutually_exclusive";
@@ -594,19 +593,16 @@ int extcon_dev_register(struct extcon_dev *edev, struct device *dev)
 	}
 
 	if (index > SUPPORTED_CABLE_MAX) {
-		dev_err(edev->dev, "extcon: maximum number of supported cables exceeded.\n");
+		dev_err(&edev->dev, "extcon: maximum number of supported cables exceeded.\n");
 		return -EINVAL;
 	}
 
-	edev->dev = kzalloc(sizeof(struct device), GFP_KERNEL);
-	if (!edev->dev)
-		return -ENOMEM;
-	edev->dev->parent = dev;
-	edev->dev->class = extcon_class;
-	edev->dev->release = extcon_dev_release;
+	edev->dev.parent = dev;
+	edev->dev.class = extcon_class;
+	edev->dev.release = extcon_dev_release;
 
 	edev->name = edev->name ? edev->name : dev_name(dev);
-	dev_set_name(edev->dev, "%s", edev->name);
+	dev_set_name(&edev->dev, "%s", edev->name);
 
 	if (edev->max_supported) {
 		char buf[10];
@@ -714,7 +710,7 @@ int extcon_dev_register(struct extcon_dev *edev, struct device *dev)
 			goto err_alloc_groups;
 		}
 
-		edev->extcon_dev_type.name = dev_name(edev->dev);
+		edev->extcon_dev_type.name = dev_name(&edev->dev);
 		edev->extcon_dev_type.release = dummy_sysfs_dev_release;
 
 		for (index = 0; index < edev->max_supported; index++)
@@ -724,25 +720,24 @@ int extcon_dev_register(struct extcon_dev *edev, struct device *dev)
 			edev->extcon_dev_type.groups[index] =
 				&edev->attr_g_muex;
 
-		edev->dev->type = &edev->extcon_dev_type;
+		edev->dev.type = &edev->extcon_dev_type;
 	}
 
-	ret = device_register(edev->dev);
+	ret = device_register(&edev->dev);
 	if (ret) {
-		put_device(edev->dev);
+		put_device(&edev->dev);
 		goto err_dev;
 	}
 #if defined(CONFIG_ANDROID)
 	if (switch_class)
-		ret = class_compat_create_link(switch_class, edev->dev,
-					       NULL);
+		ret = class_compat_create_link(switch_class, &edev->dev, NULL);
 #endif /* CONFIG_ANDROID */
 
 	spin_lock_init(&edev->lock);
 
 	RAW_INIT_NOTIFIER_HEAD(&edev->nh);
 
-	dev_set_drvdata(edev->dev, edev);
+	dev_set_drvdata(&edev->dev, edev);
 	edev->state = 0;
 
 	mutex_lock(&extcon_dev_list_lock);
@@ -768,7 +763,6 @@ err_alloc_cables:
 	if (edev->max_supported)
 		kfree(edev->cables);
 err_sysfs_alloc:
-	kfree(edev->dev);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(extcon_dev_register);
@@ -788,9 +782,9 @@ void extcon_dev_unregister(struct extcon_dev *edev)
 	list_del(&edev->entry);
 	mutex_unlock(&extcon_dev_list_lock);
 
-	if (IS_ERR_OR_NULL(get_device(edev->dev))) {
-		dev_err(edev->dev, "Failed to unregister extcon_dev (%s)\n",
-				dev_name(edev->dev));
+	if (IS_ERR_OR_NULL(get_device(&edev->dev))) {
+		dev_err(&edev->dev, "Failed to unregister extcon_dev (%s)\n",
+				dev_name(&edev->dev));
 		return;
 	}
 
@@ -812,10 +806,10 @@ void extcon_dev_unregister(struct extcon_dev *edev)
 
 #if defined(CONFIG_ANDROID)
 	if (switch_class)
-		class_compat_remove_link(switch_class, edev->dev, NULL);
+		class_compat_remove_link(switch_class, &edev->dev, NULL);
 #endif
-	device_unregister(edev->dev);
-	put_device(edev->dev);
+	device_unregister(&edev->dev);
+	put_device(&edev->dev);
 }
 EXPORT_SYMBOL_GPL(extcon_dev_unregister);
 
diff --git a/include/linux/extcon.h b/include/linux/extcon.h
index c2b652dde72c..0269bafb0ee8 100644
--- a/include/linux/extcon.h
+++ b/include/linux/extcon.h
@@ -93,7 +93,7 @@ struct extcon_cable;
  *			name of the extcon device.
  * @print_state:	An optional callback to override the method to print the
  *			status of the extcon device.
- * @dev:		Device of this extcon. Do not provide at register-time.
+ * @dev:		Device of this extcon.
  * @state:		Attach/detach state of this extcon. Do not provide at
  *			register-time.
  * @nh:			Notifier for the state change events from this extcon
@@ -121,7 +121,7 @@ struct extcon_dev {
 	ssize_t	(*print_state)(struct extcon_dev *edev, char *buf);
 
 	/* Internal data. Please do not set. */
-	struct device *dev;
+	struct device dev;
 	struct raw_notifier_head nh;
 	struct list_head entry;
 	int max_supported;
-- 
cgit 


From 42d7d7539a7bcf1d493b989465283c464f4a0525 Mon Sep 17 00:00:00 2001
From: Chanwoo Choi <cw00.choi@samsung.com>
Date: Fri, 27 Sep 2013 09:20:26 +0900
Subject: extcon: Simplify extcon_dev_register() prototype by removing
 unnecessary parameter

This patch remove extcon_dev_register()'s second parameter which means
the pointer of parent device to simplify prototype of this function.
So, if extcon device has the parent device, it should set the pointer of
parent device to edev.dev.parent in extcon device driver instead of in
extcon_dev_register().

Cc: Graeme Gregory <gg@slimlogic.co.uk>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Cc: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
---
 Documentation/extcon/porting-android-switch-class |  6 ++++--
 drivers/extcon/extcon-adc-jack.c                  |  3 ++-
 drivers/extcon/extcon-arizona.c                   |  3 ++-
 drivers/extcon/extcon-class.c                     | 11 +++++++----
 drivers/extcon/extcon-gpio.c                      |  3 ++-
 drivers/extcon/extcon-max77693.c                  |  3 ++-
 drivers/extcon/extcon-max8997.c                   |  3 ++-
 drivers/extcon/extcon-palmas.c                    |  3 ++-
 include/linux/extcon.h                            |  5 ++---
 9 files changed, 25 insertions(+), 15 deletions(-)

diff --git a/Documentation/extcon/porting-android-switch-class b/Documentation/extcon/porting-android-switch-class
index eb0fa5f4fe88..5377f6317961 100644
--- a/Documentation/extcon/porting-android-switch-class
+++ b/Documentation/extcon/porting-android-switch-class
@@ -25,8 +25,10 @@ MyungJoo Ham <myungjoo.ham@samsung.com>
     @print_state: no change but type change (switch_dev->extcon_dev)
 
 - switch_dev_register(sdev, dev)
-	=> extcon_dev_register(edev, dev)
-	: no change but type change (sdev->edev)
+	=> extcon_dev_register(edev)
+	: type change (sdev->edev)
+	: remove second param('dev'). if edev has parent device, should store
+	  'dev' to 'edev.dev.parent' before registering extcon device
 - switch_dev_unregister(sdev)
 	=> extcon_dev_unregister(edev)
 	: no change but type change (sdev->edev)
diff --git a/drivers/extcon/extcon-adc-jack.c b/drivers/extcon/extcon-adc-jack.c
index dcbade667d0c..e23f1c2e5053 100644
--- a/drivers/extcon/extcon-adc-jack.c
+++ b/drivers/extcon/extcon-adc-jack.c
@@ -110,6 +110,7 @@ static int adc_jack_probe(struct platform_device *pdev)
 		goto out;
 	}
 
+	data->edev.dev.parent = &pdev->dev;
 	data->edev.supported_cable = pdata->cable_names;
 
 	/* Check the length of array and set num_cables */
@@ -148,7 +149,7 @@ static int adc_jack_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, data);
 
-	err = extcon_dev_register(&data->edev, &pdev->dev);
+	err = extcon_dev_register(&data->edev);
 	if (err)
 		goto out;
 
diff --git a/drivers/extcon/extcon-arizona.c b/drivers/extcon/extcon-arizona.c
index e54ce08f669c..ec9a14e05fdd 100644
--- a/drivers/extcon/extcon-arizona.c
+++ b/drivers/extcon/extcon-arizona.c
@@ -1130,9 +1130,10 @@ static int arizona_extcon_probe(struct platform_device *pdev)
 	}
 
 	info->edev.name = "Headset Jack";
+	info->edev.dev.parent = arizona->dev;
 	info->edev.supported_cable = arizona_cable;
 
-	ret = extcon_dev_register(&info->edev, arizona->dev);
+	ret = extcon_dev_register(&info->edev);
 	if (ret < 0) {
 		dev_err(arizona->dev, "extcon_dev_register() failed: %d\n",
 			ret);
diff --git a/drivers/extcon/extcon-class.c b/drivers/extcon/extcon-class.c
index 2801c14d5232..84902d3fee11 100644
--- a/drivers/extcon/extcon-class.c
+++ b/drivers/extcon/extcon-class.c
@@ -566,14 +566,13 @@ static void dummy_sysfs_dev_release(struct device *dev)
 /**
  * extcon_dev_register() - Register a new extcon device
  * @edev	: the new extcon device (should be allocated before calling)
- * @dev		: the parent device for this extcon device.
  *
  * Among the members of edev struct, please set the "user initializing data"
  * in any case and set the "optional callbacks" if required. However, please
  * do not set the values of "internal data", which are initialized by
  * this function.
  */
-int extcon_dev_register(struct extcon_dev *edev, struct device *dev)
+int extcon_dev_register(struct extcon_dev *edev)
 {
 	int ret, index = 0;
 
@@ -597,11 +596,15 @@ int extcon_dev_register(struct extcon_dev *edev, struct device *dev)
 		return -EINVAL;
 	}
 
-	edev->dev.parent = dev;
 	edev->dev.class = extcon_class;
 	edev->dev.release = extcon_dev_release;
 
-	edev->name = edev->name ? edev->name : dev_name(dev);
+	edev->name = edev->name ? edev->name : dev_name(edev->dev.parent);
+	if (IS_ERR_OR_NULL(edev->name)) {
+		dev_err(&edev->dev,
+			"extcon device name is null\n");
+		return -EINVAL;
+	}
 	dev_set_name(&edev->dev, "%s", edev->name);
 
 	if (edev->max_supported) {
diff --git a/drivers/extcon/extcon-gpio.c b/drivers/extcon/extcon-gpio.c
index b02c670ef01d..7e0dff58e494 100644
--- a/drivers/extcon/extcon-gpio.c
+++ b/drivers/extcon/extcon-gpio.c
@@ -98,6 +98,7 @@ static int gpio_extcon_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	extcon_data->edev.name = pdata->name;
+	extcon_data->edev.dev.parent = &pdev->dev;
 	extcon_data->gpio = pdata->gpio;
 	extcon_data->gpio_active_low = pdata->gpio_active_low;
 	extcon_data->state_on = pdata->state_on;
@@ -112,7 +113,7 @@ static int gpio_extcon_probe(struct platform_device *pdev)
 				msecs_to_jiffies(pdata->debounce);
 	}
 
-	ret = extcon_dev_register(&extcon_data->edev, &pdev->dev);
+	ret = extcon_dev_register(&extcon_data->edev);
 	if (ret < 0)
 		return ret;
 
diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index 4849ea1e92f6..ab9bc24e1a52 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -1171,8 +1171,9 @@ static int max77693_muic_probe(struct platform_device *pdev)
 		goto err_irq;
 	}
 	info->edev->name = DEV_NAME;
+	info->edev->dev.parent = &pdev->dev;
 	info->edev->supported_cable = max77693_extcon_cable;
-	ret = extcon_dev_register(info->edev, NULL);
+	ret = extcon_dev_register(info->edev);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register extcon device\n");
 		goto err_irq;
diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c
index e55ec38b4148..0b1cbb5fdf9e 100644
--- a/drivers/extcon/extcon-max8997.c
+++ b/drivers/extcon/extcon-max8997.c
@@ -705,8 +705,9 @@ static int max8997_muic_probe(struct platform_device *pdev)
 		goto err_irq;
 	}
 	info->edev->name = DEV_NAME;
+	info->edev->dev.parent = &pdev->dev;
 	info->edev->supported_cable = max8997_extcon_cable;
-	ret = extcon_dev_register(info->edev, NULL);
+	ret = extcon_dev_register(info->edev);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register extcon device\n");
 		goto err_irq;
diff --git a/drivers/extcon/extcon-palmas.c b/drivers/extcon/extcon-palmas.c
index 0c2fb68fb791..6c91976dd823 100644
--- a/drivers/extcon/extcon-palmas.c
+++ b/drivers/extcon/extcon-palmas.c
@@ -178,9 +178,10 @@ static int palmas_usb_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, palmas_usb);
 
 	palmas_usb->edev.supported_cable = palmas_extcon_cable;
+	palmas_usb->edev.dev.parent = palmas_usb->dev;
 	palmas_usb->edev.mutually_exclusive = mutually_exclusive;
 
-	status = extcon_dev_register(&palmas_usb->edev, palmas_usb->dev);
+	status = extcon_dev_register(&palmas_usb->edev);
 	if (status) {
 		dev_err(&pdev->dev, "failed to register extcon device\n");
 		return status;
diff --git a/include/linux/extcon.h b/include/linux/extcon.h
index 0269bafb0ee8..21c59af1150b 100644
--- a/include/linux/extcon.h
+++ b/include/linux/extcon.h
@@ -183,7 +183,7 @@ struct extcon_specific_cable_nb {
  * Following APIs are for notifiers or configurations.
  * Notifiers are the external port and connection devices.
  */
-extern int extcon_dev_register(struct extcon_dev *edev, struct device *dev);
+extern int extcon_dev_register(struct extcon_dev *edev);
 extern void extcon_dev_unregister(struct extcon_dev *edev);
 extern struct extcon_dev *extcon_get_extcon_dev(const char *extcon_name);
 
@@ -241,8 +241,7 @@ extern int extcon_register_notifier(struct extcon_dev *edev,
 extern int extcon_unregister_notifier(struct extcon_dev *edev,
 				      struct notifier_block *nb);
 #else /* CONFIG_EXTCON */
-static inline int extcon_dev_register(struct extcon_dev *edev,
-				      struct device *dev)
+static inline int extcon_dev_register(struct extcon_dev *edev)
 {
 	return 0;
 }
-- 
cgit 


From 5550e8e9cde86a665ba04b26cc910676ce228094 Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Thu, 26 Sep 2013 13:16:16 +0200
Subject: ARM: dts: mxs: Add muxing options for the SSP2 MMC

Add pinmux for 4-bit SD card connected to SSP2.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx28.dtsi | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
index 918d419772dd..1c5ed9dbebb5 100644
--- a/arch/arm/boot/dts/imx28.dtsi
+++ b/arch/arm/boot/dts/imx28.dtsi
@@ -473,6 +473,37 @@
 					fsl,pull-up = <MXS_PULL_DISABLE>;
 				};
 
+				mmc2_4bit_pins_a: mmc2-4bit@0 {
+					reg = <0>;
+					fsl,pinmux-ids = <
+						MX28_PAD_SSP0_DATA4__SSP2_D0
+						MX28_PAD_SSP1_SCK__SSP2_D1
+						MX28_PAD_SSP1_CMD__SSP2_D2
+						MX28_PAD_SSP0_DATA5__SSP2_D3
+						MX28_PAD_SSP0_DATA6__SSP2_CMD
+						MX28_PAD_AUART1_RX__SSP2_CARD_DETECT
+						MX28_PAD_SSP0_DATA7__SSP2_SCK
+					>;
+					fsl,drive-strength = <MXS_DRIVE_8mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_ENABLE>;
+				};
+
+				mmc2_cd_cfg: mmc2-cd-cfg {
+					fsl,pinmux-ids = <
+						MX28_PAD_AUART1_RX__SSP2_CARD_DETECT
+					>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
+				};
+
+				mmc2_sck_cfg: mmc2-sck-cfg {
+					fsl,pinmux-ids = <
+						MX28_PAD_SSP0_DATA7__SSP2_SCK
+					>;
+					fsl,drive-strength = <MXS_DRIVE_12mA>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
+				};
+
 				i2c0_pins_a: i2c0@0 {
 					reg = <0>;
 					fsl,pinmux-ids = <
-- 
cgit 


From 40cdaa542cf0c570600c29b006b782631d07d052 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Thu, 26 Sep 2013 17:43:52 -0300
Subject: ARM: dts: imx6q-udoo: Add initial board support

For more information about the Udoo board:
http://www.udoo.org/

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/Makefile       |  1 +
 arch/arm/boot/dts/imx6q-udoo.dts | 39 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 40 insertions(+)
 create mode 100644 arch/arm/boot/dts/imx6q-udoo.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index c703da2581cf..909561081711 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -140,6 +140,7 @@ dtb-$(CONFIG_ARCH_MXC) += \
 	imx6q-sabrelite.dtb \
 	imx6q-sabresd.dtb \
 	imx6q-sbc6x.dtb \
+	imx6q-udoo.dtb \
 	imx6q-wandboard.dtb \
 	imx6sl-evk.dtb \
 	vf610-cosmic.dtb \
diff --git a/arch/arm/boot/dts/imx6q-udoo.dts b/arch/arm/boot/dts/imx6q-udoo.dts
new file mode 100644
index 000000000000..6e1ccdc019a7
--- /dev/null
+++ b/arch/arm/boot/dts/imx6q-udoo.dts
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2013 Freescale Semiconductor, Inc.
+ *
+ * Author: Fabio Estevam <fabio.estevam@freescale.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+/dts-v1/;
+#include "imx6q.dtsi"
+
+/ {
+	model = "Udoo i.MX6 Quad Board";
+	compatible = "udoo,imx6q-udoo", "fsl,imx6q";
+
+	memory {
+		reg = <0x10000000 0x40000000>;
+	};
+};
+
+&sata {
+	status = "okay";
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2_1>;
+	status = "okay";
+};
+
+&usdhc3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_usdhc3_2>;
+	non-removable;
+	status = "okay";
+};
-- 
cgit 


From 8af2c2869fd129bce0d0dfd86c6364c1096f9eff Mon Sep 17 00:00:00 2001
From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Date: Thu, 28 Mar 2013 22:53:42 +0800
Subject: video: atmel_lcdfb: fix platform data struct

Today we mix pdata and drivers data in the struct atmel_lcdfb_info
Fix it and introduce a new struct atmel_lcdfb_pdata for platform data only

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 arch/arm/mach-at91/at91sam9261_devices.c    |   6 +-
 arch/arm/mach-at91/at91sam9263_devices.c    |   6 +-
 arch/arm/mach-at91/at91sam9g45_devices.c    |   6 +-
 arch/arm/mach-at91/at91sam9rl_devices.c     |   6 +-
 arch/arm/mach-at91/board-sam9261ek.c        |   6 +-
 arch/arm/mach-at91/board-sam9263ek.c        |   4 +-
 arch/arm/mach-at91/board-sam9m10g45ek.c     |   4 +-
 arch/arm/mach-at91/board-sam9rlek.c         |   4 +-
 arch/arm/mach-at91/board.h                  |   4 +-
 arch/avr32/boards/atngw100/evklcd10x.c      |   6 +-
 arch/avr32/boards/atngw100/mrmt.c           |   4 +-
 arch/avr32/boards/atstk1000/atstk1000.h     |   2 +-
 arch/avr32/boards/atstk1000/setup.c         |   2 +-
 arch/avr32/boards/favr-32/setup.c           |   2 +-
 arch/avr32/boards/hammerhead/setup.c        |   2 +-
 arch/avr32/boards/merisc/display.c          |   2 +-
 arch/avr32/boards/mimc200/setup.c           |   4 +-
 arch/avr32/mach-at32ap/at32ap700x.c         |   8 +--
 arch/avr32/mach-at32ap/include/mach/board.h |   4 +-
 drivers/video/atmel_lcdfb.c                 | 105 ++++++++++++++++++----------
 include/video/atmel_lcdc.h                  |  23 +-----
 21 files changed, 109 insertions(+), 101 deletions(-)

diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index 629ea5fc95cf..b2a34740146a 100644
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -465,7 +465,7 @@ void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices)
 
 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 static u64 lcdc_dmamask = DMA_BIT_MASK(32);
-static struct atmel_lcdfb_info lcdc_data;
+static struct atmel_lcdfb_pdata lcdc_data;
 
 static struct resource lcdc_resources[] = {
 	[0] = {
@@ -498,7 +498,7 @@ static struct platform_device at91_lcdc_device = {
 	.num_resources	= ARRAY_SIZE(lcdc_resources),
 };
 
-void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
+void __init at91_add_device_lcdc(struct atmel_lcdfb_pdata *data)
 {
 	if (!data) {
 		return;
@@ -559,7 +559,7 @@ void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
 	platform_device_register(&at91_lcdc_device);
 }
 #else
-void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
+void __init at91_add_device_lcdc(struct atmel_lcdfb_pdata *data) {}
 #endif
 
 
diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c
index 858c8aac2daf..4aeadddbc181 100644
--- a/arch/arm/mach-at91/at91sam9263_devices.c
+++ b/arch/arm/mach-at91/at91sam9263_devices.c
@@ -832,7 +832,7 @@ void __init at91_add_device_can(struct at91_can_data *data) {}
 
 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 static u64 lcdc_dmamask = DMA_BIT_MASK(32);
-static struct atmel_lcdfb_info lcdc_data;
+static struct atmel_lcdfb_pdata lcdc_data;
 
 static struct resource lcdc_resources[] = {
 	[0] = {
@@ -859,7 +859,7 @@ static struct platform_device at91_lcdc_device = {
 	.num_resources	= ARRAY_SIZE(lcdc_resources),
 };
 
-void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
+void __init at91_add_device_lcdc(struct atmel_lcdfb_pdata *data)
 {
 	if (!data)
 		return;
@@ -891,7 +891,7 @@ void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
 	platform_device_register(&at91_lcdc_device);
 }
 #else
-void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
+void __init at91_add_device_lcdc(struct atmel_lcdfb_pdata *data) {}
 #endif
 
 
diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index acb703e13331..cb36fa872d30 100644
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -965,7 +965,7 @@ void __init at91_add_device_isi(struct isi_platform_data *data,
 
 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 static u64 lcdc_dmamask = DMA_BIT_MASK(32);
-static struct atmel_lcdfb_info lcdc_data;
+static struct atmel_lcdfb_pdata lcdc_data;
 
 static struct resource lcdc_resources[] = {
 	[0] = {
@@ -991,7 +991,7 @@ static struct platform_device at91_lcdc_device = {
 	.num_resources	= ARRAY_SIZE(lcdc_resources),
 };
 
-void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
+void __init at91_add_device_lcdc(struct atmel_lcdfb_pdata *data)
 {
 	if (!data)
 		return;
@@ -1037,7 +1037,7 @@ void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
 	platform_device_register(&at91_lcdc_device);
 }
 #else
-void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
+void __init at91_add_device_lcdc(struct atmel_lcdfb_pdata *data) {}
 #endif
 
 
diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c
index 352468f265a9..a698bdab2cce 100644
--- a/arch/arm/mach-at91/at91sam9rl_devices.c
+++ b/arch/arm/mach-at91/at91sam9rl_devices.c
@@ -498,7 +498,7 @@ void __init at91_add_device_ac97(struct ac97c_platform_data *data) {}
 
 #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE)
 static u64 lcdc_dmamask = DMA_BIT_MASK(32);
-static struct atmel_lcdfb_info lcdc_data;
+static struct atmel_lcdfb_pdata lcdc_data;
 
 static struct resource lcdc_resources[] = {
 	[0] = {
@@ -525,7 +525,7 @@ static struct platform_device at91_lcdc_device = {
 	.num_resources	= ARRAY_SIZE(lcdc_resources),
 };
 
-void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
+void __init at91_add_device_lcdc(struct atmel_lcdfb_pdata *data)
 {
 	if (!data) {
 		return;
@@ -557,7 +557,7 @@ void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data)
 	platform_device_register(&at91_lcdc_device);
 }
 #else
-void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {}
+void __init at91_add_device_lcdc(struct atmel_lcdfb_pdata *data) {}
 #endif
 
 
diff --git a/arch/arm/mach-at91/board-sam9261ek.c b/arch/arm/mach-at91/board-sam9261ek.c
index d3437624ca4e..4ab1ba7557e4 100644
--- a/arch/arm/mach-at91/board-sam9261ek.c
+++ b/arch/arm/mach-at91/board-sam9261ek.c
@@ -401,7 +401,7 @@ static void at91_lcdc_stn_power_control(int on)
 	}
 }
 
-static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
+static struct atmel_lcdfb_pdata __initdata ek_lcdc_data = {
 	.default_bpp			= 1,
 	.default_dmacon			= ATMEL_LCDC_DMAEN,
 	.default_lcdcon2		= AT91SAM9261_DEFAULT_STN_LCDCON2,
@@ -453,7 +453,7 @@ static void at91_lcdc_tft_power_control(int on)
 		at91_set_gpio_value(AT91_PIN_PA12, 1);	/* power down */
 }
 
-static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
+static struct atmel_lcdfb_pdata __initdata ek_lcdc_data = {
 	.lcdcon_is_backlight		= true,
 	.default_bpp			= 16,
 	.default_dmacon			= ATMEL_LCDC_DMAEN,
@@ -465,7 +465,7 @@ static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 #endif
 
 #else
-static struct atmel_lcdfb_info __initdata ek_lcdc_data;
+static struct atmel_lcdfb_pdata __initdata ek_lcdc_data;
 #endif
 
 
diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c
index 3284df05df14..0fdae3f1541d 100644
--- a/arch/arm/mach-at91/board-sam9263ek.c
+++ b/arch/arm/mach-at91/board-sam9263ek.c
@@ -281,7 +281,7 @@ static void at91_lcdc_power_control(int on)
 }
 
 /* Driver datas */
-static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
+static struct atmel_lcdfb_pdata __initdata ek_lcdc_data = {
 	.lcdcon_is_backlight		= true,
 	.default_bpp			= 16,
 	.default_dmacon			= ATMEL_LCDC_DMAEN,
@@ -292,7 +292,7 @@ static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 };
 
 #else
-static struct atmel_lcdfb_info __initdata ek_lcdc_data;
+static struct atmel_lcdfb_pdata __initdata ek_lcdc_data;
 #endif
 
 
diff --git a/arch/arm/mach-at91/board-sam9m10g45ek.c b/arch/arm/mach-at91/board-sam9m10g45ek.c
index 2a94896a1375..ef39078c8ce2 100644
--- a/arch/arm/mach-at91/board-sam9m10g45ek.c
+++ b/arch/arm/mach-at91/board-sam9m10g45ek.c
@@ -284,7 +284,7 @@ static struct fb_monspecs at91fb_default_monspecs = {
 					| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 
 /* Driver datas */
-static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
+static struct atmel_lcdfb_pdata __initdata ek_lcdc_data = {
 	.lcdcon_is_backlight		= true,
 	.default_bpp			= 32,
 	.default_dmacon			= ATMEL_LCDC_DMAEN,
@@ -295,7 +295,7 @@ static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 };
 
 #else
-static struct atmel_lcdfb_info __initdata ek_lcdc_data;
+static struct atmel_lcdfb_pdata __initdata ek_lcdc_data;
 #endif
 
 
diff --git a/arch/arm/mach-at91/board-sam9rlek.c b/arch/arm/mach-at91/board-sam9rlek.c
index aa265dcf2128..b77d7a9febd8 100644
--- a/arch/arm/mach-at91/board-sam9rlek.c
+++ b/arch/arm/mach-at91/board-sam9rlek.c
@@ -179,7 +179,7 @@ static void at91_lcdc_power_control(int on)
 }
 
 /* Driver datas */
-static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
+static struct atmel_lcdfb_pdata __initdata ek_lcdc_data = {
 	.lcdcon_is_backlight            = true,
 	.default_bpp			= 16,
 	.default_dmacon			= ATMEL_LCDC_DMAEN,
@@ -191,7 +191,7 @@ static struct atmel_lcdfb_info __initdata ek_lcdc_data = {
 };
 
 #else
-static struct atmel_lcdfb_info __initdata ek_lcdc_data;
+static struct atmel_lcdfb_pdata __initdata ek_lcdc_data;
 #endif
 
 
diff --git a/arch/arm/mach-at91/board.h b/arch/arm/mach-at91/board.h
index 4a234fb2ab3b..6c08b341167d 100644
--- a/arch/arm/mach-at91/board.h
+++ b/arch/arm/mach-at91/board.h
@@ -107,8 +107,8 @@ extern void __init at91_add_device_pwm(u32 mask);
 extern void __init at91_add_device_ssc(unsigned id, unsigned pins);
 
  /* LCD Controller */
-struct atmel_lcdfb_info;
-extern void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data);
+struct atmel_lcdfb_pdata;
+extern void __init at91_add_device_lcdc(struct atmel_lcdfb_pdata *data);
 
  /* AC97 */
 extern void __init at91_add_device_ac97(struct ac97c_platform_data *data);
diff --git a/arch/avr32/boards/atngw100/evklcd10x.c b/arch/avr32/boards/atngw100/evklcd10x.c
index 20388750d564..dc4280413e9d 100644
--- a/arch/avr32/boards/atngw100/evklcd10x.c
+++ b/arch/avr32/boards/atngw100/evklcd10x.c
@@ -58,7 +58,7 @@ static struct fb_monspecs __initdata atevklcd10x_default_monspecs = {
 	.dclkmax		= 28330000,
 };
 
-static struct atmel_lcdfb_info __initdata atevklcd10x_lcdc_data = {
+static struct atmel_lcdfb_pdata __initdata atevklcd10x_lcdc_data = {
 	.default_bpp		= 16,
 	.default_dmacon		= ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
 	.default_lcdcon2	= (ATMEL_LCDC_DISTYPE_TFT
@@ -96,7 +96,7 @@ static struct fb_monspecs __initdata atevklcd10x_default_monspecs = {
 	.dclkmax		= 7000000,
 };
 
-static struct atmel_lcdfb_info __initdata atevklcd10x_lcdc_data = {
+static struct atmel_lcdfb_pdata __initdata atevklcd10x_lcdc_data = {
 	.default_bpp		= 16,
 	.default_dmacon		= ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
 	.default_lcdcon2	= (ATMEL_LCDC_DISTYPE_TFT
@@ -134,7 +134,7 @@ static struct fb_monspecs __initdata atevklcd10x_default_monspecs = {
 	.dclkmax		= 6400000,
 };
 
-static struct atmel_lcdfb_info __initdata atevklcd10x_lcdc_data = {
+static struct atmel_lcdfb_pdata __initdata atevklcd10x_lcdc_data = {
 	.default_bpp		= 16,
 	.default_dmacon		= ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
 	.default_lcdcon2	= (ATMEL_LCDC_DISTYPE_TFT
diff --git a/arch/avr32/boards/atngw100/mrmt.c b/arch/avr32/boards/atngw100/mrmt.c
index 7de083d19b7e..1ba09e4c02b1 100644
--- a/arch/avr32/boards/atngw100/mrmt.c
+++ b/arch/avr32/boards/atngw100/mrmt.c
@@ -83,7 +83,7 @@ static struct fb_monspecs __initdata lcd_fb_default_monspecs = {
 	.dclkmax		= 9260000,
 };
 
-static struct atmel_lcdfb_info __initdata rmt_lcdc_data = {
+static struct atmel_lcdfb_pdata __initdata rmt_lcdc_data = {
 	.default_bpp		= 24,
 	.default_dmacon		= ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
 	.default_lcdcon2	= (ATMEL_LCDC_DISTYPE_TFT
@@ -126,7 +126,7 @@ static struct fb_monspecs __initdata lcd_fb_default_monspecs = {
 	.dclkmax		= 9260000,
 };
 
-static struct atmel_lcdfb_info __initdata rmt_lcdc_data = {
+static struct atmel_lcdfb_pdata __initdata rmt_lcdc_data = {
 	.default_bpp		= 24,
 	.default_dmacon		= ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
 	.default_lcdcon2	= (ATMEL_LCDC_DISTYPE_TFT
diff --git a/arch/avr32/boards/atstk1000/atstk1000.h b/arch/avr32/boards/atstk1000/atstk1000.h
index 9392d3252865..653cc09e536c 100644
--- a/arch/avr32/boards/atstk1000/atstk1000.h
+++ b/arch/avr32/boards/atstk1000/atstk1000.h
@@ -10,7 +10,7 @@
 #ifndef __ARCH_AVR32_BOARDS_ATSTK1000_ATSTK1000_H
 #define __ARCH_AVR32_BOARDS_ATSTK1000_ATSTK1000_H
 
-extern struct atmel_lcdfb_info atstk1000_lcdc_data;
+extern struct atmel_lcdfb_pdata atstk1000_lcdc_data;
 
 void atstk1000_setup_j2_leds(void);
 
diff --git a/arch/avr32/boards/atstk1000/setup.c b/arch/avr32/boards/atstk1000/setup.c
index 2d6b560115d9..b6b88f5e0b43 100644
--- a/arch/avr32/boards/atstk1000/setup.c
+++ b/arch/avr32/boards/atstk1000/setup.c
@@ -55,7 +55,7 @@ static struct fb_monspecs __initdata atstk1000_default_monspecs = {
 	.dclkmax		= 30000000,
 };
 
-struct atmel_lcdfb_info __initdata atstk1000_lcdc_data = {
+struct atmel_lcdfb_pdata __initdata atstk1000_lcdc_data = {
 	.default_bpp		= 24,
 	.default_dmacon		= ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
 	.default_lcdcon2	= (ATMEL_LCDC_DISTYPE_TFT
diff --git a/arch/avr32/boards/favr-32/setup.c b/arch/avr32/boards/favr-32/setup.c
index 27bd6fbe21cb..7b1f2cd85400 100644
--- a/arch/avr32/boards/favr-32/setup.c
+++ b/arch/avr32/boards/favr-32/setup.c
@@ -125,7 +125,7 @@ static struct fb_monspecs __initdata favr32_default_monspecs = {
 	.dclkmax		= 28000000,
 };
 
-struct atmel_lcdfb_info __initdata favr32_lcdc_data = {
+struct atmel_lcdfb_pdata __initdata favr32_lcdc_data = {
 	.default_bpp		= 16,
 	.default_dmacon		= ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
 	.default_lcdcon2	= (ATMEL_LCDC_DISTYPE_TFT
diff --git a/arch/avr32/boards/hammerhead/setup.c b/arch/avr32/boards/hammerhead/setup.c
index 9d1efd1cd425..dc0e317f2ecd 100644
--- a/arch/avr32/boards/hammerhead/setup.c
+++ b/arch/avr32/boards/hammerhead/setup.c
@@ -77,7 +77,7 @@ static struct fb_monspecs __initdata hammerhead_hda350t_monspecs = {
 	.dclkmax		= 10000000,
 };
 
-struct atmel_lcdfb_info __initdata hammerhead_lcdc_data = {
+struct atmel_lcdfb_pdata __initdata hammerhead_lcdc_data = {
 	.default_bpp		= 24,
 	.default_dmacon		= ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
 	.default_lcdcon2	= (ATMEL_LCDC_DISTYPE_TFT
diff --git a/arch/avr32/boards/merisc/display.c b/arch/avr32/boards/merisc/display.c
index 85a543cd4abc..e7683ee7ed40 100644
--- a/arch/avr32/boards/merisc/display.c
+++ b/arch/avr32/boards/merisc/display.c
@@ -45,7 +45,7 @@ static struct fb_monspecs merisc_fb_monspecs = {
 	.dclkmax	= 30000000,
 };
 
-struct atmel_lcdfb_info merisc_lcdc_data = {
+struct atmel_lcdfb_pdata merisc_lcdc_data = {
 	.default_bpp		= 24,
 	.default_dmacon		= ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
 	.default_lcdcon2	= (ATMEL_LCDC_DISTYPE_TFT
diff --git a/arch/avr32/boards/mimc200/setup.c b/arch/avr32/boards/mimc200/setup.c
index 05358aa5ef7d..1cb8e9cc5cfa 100644
--- a/arch/avr32/boards/mimc200/setup.c
+++ b/arch/avr32/boards/mimc200/setup.c
@@ -8,7 +8,7 @@
  * published by the Free Software Foundation.
  */
 
-extern struct atmel_lcdfb_info mimc200_lcdc_data;
+extern struct atmel_lcdfb_pdata mimc200_lcdc_data;
 
 #include <linux/clk.h>
 #include <linux/etherdevice.h>
@@ -71,7 +71,7 @@ static struct fb_monspecs __initdata mimc200_default_monspecs = {
 	.dclkmax		= 25200000,
 };
 
-struct atmel_lcdfb_info __initdata mimc200_lcdc_data = {
+struct atmel_lcdfb_pdata __initdata mimc200_lcdc_data = {
 	.default_bpp		= 16,
 	.default_dmacon		= ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,
 	.default_lcdcon2	= (ATMEL_LCDC_DISTYPE_TFT
diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
index a68f3cf7c3c1..a1f4d1e91b52 100644
--- a/arch/avr32/mach-at32ap/at32ap700x.c
+++ b/arch/avr32/mach-at32ap/at32ap700x.c
@@ -1439,7 +1439,7 @@ fail:
  *  LCDC
  * -------------------------------------------------------------------- */
 #if defined(CONFIG_CPU_AT32AP7000) || defined(CONFIG_CPU_AT32AP7002)
-static struct atmel_lcdfb_info atmel_lcdfb0_data;
+static struct atmel_lcdfb_pdata atmel_lcdfb0_data;
 static struct resource atmel_lcdfb0_resource[] = {
 	{
 		.start		= 0xff000000,
@@ -1467,12 +1467,12 @@ static struct clk atmel_lcdfb0_pixclk = {
 };
 
 struct platform_device *__init
-at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_info *data,
+at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_pdata *data,
 		     unsigned long fbmem_start, unsigned long fbmem_len,
 		     u64 pin_mask)
 {
 	struct platform_device *pdev;
-	struct atmel_lcdfb_info *info;
+	struct atmel_lcdfb_pdata *info;
 	struct fb_monspecs *monspecs;
 	struct fb_videomode *modedb;
 	unsigned int modedb_size;
@@ -1529,7 +1529,7 @@ at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_info *data,
 	}
 
 	info = pdev->dev.platform_data;
-	memcpy(info, data, sizeof(struct atmel_lcdfb_info));
+	memcpy(info, data, sizeof(struct atmel_lcdfb_pdata));
 	info->default_monspecs = monspecs;
 
 	pdev->name = "at32ap-lcdfb";
diff --git a/arch/avr32/mach-at32ap/include/mach/board.h b/arch/avr32/mach-at32ap/include/mach/board.h
index d485b0391357..f1a316d52c73 100644
--- a/arch/avr32/mach-at32ap/include/mach/board.h
+++ b/arch/avr32/mach-at32ap/include/mach/board.h
@@ -44,9 +44,9 @@ struct platform_device *
 at32_add_device_spi(unsigned int id, struct spi_board_info *b, unsigned int n);
 void at32_spi_setup_slaves(unsigned int bus_num, struct spi_board_info *b, unsigned int n);
 
-struct atmel_lcdfb_info;
+struct atmel_lcdfb_pdata;
 struct platform_device *
-at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_info *data,
+at32_add_device_lcdc(unsigned int id, struct atmel_lcdfb_pdata *data,
 		     unsigned long fbmem_start, unsigned long fbmem_len,
 		     u64 pin_mask);
 
diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index 3f7d6dc3408d..0d7214df1237 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -20,12 +20,44 @@
 #include <linux/gfp.h>
 #include <linux/module.h>
 #include <linux/platform_data/atmel.h>
+#include <video/of_display_timing.h>
 
 #include <mach/cpu.h>
 #include <asm/gpio.h>
 
 #include <video/atmel_lcdc.h>
 
+struct atmel_lcdfb_config {
+	bool have_alt_pixclock;
+	bool have_hozval;
+	bool have_intensity_bit;
+};
+
+ /* LCD Controller info data structure, stored in device platform_data */
+struct atmel_lcdfb_info {
+	spinlock_t		lock;
+	struct fb_info		*info;
+	void __iomem		*mmio;
+	int			irq_base;
+	struct work_struct	task;
+
+	unsigned int		smem_len;
+	struct platform_device	*pdev;
+	struct clk		*bus_clk;
+	struct clk		*lcdc_clk;
+
+	struct backlight_device	*backlight;
+	u8			bl_power;
+	u8			saved_lcdcon;
+
+	u32			pseudo_palette[16];
+	bool			have_intensity_bit;
+
+	struct atmel_lcdfb_pdata pdata;
+
+	struct atmel_lcdfb_config *config;
+};
+
 #define lcdc_readl(sinfo, reg)		__raw_readl((sinfo)->mmio+(reg))
 #define lcdc_writel(sinfo, reg, val)	__raw_writel((val), (sinfo)->mmio+(reg))
 
@@ -34,12 +66,6 @@
 #define ATMEL_LCDC_DMA_BURST_LEN	8	/* words */
 #define ATMEL_LCDC_FIFO_SIZE		512	/* words */
 
-struct atmel_lcdfb_config {
-	bool have_alt_pixclock;
-	bool have_hozval;
-	bool have_intensity_bit;
-};
-
 static struct atmel_lcdfb_config at91sam9261_config = {
 	.have_hozval		= true,
 	.have_intensity_bit	= true,
@@ -248,15 +274,17 @@ static void exit_backlight(struct atmel_lcdfb_info *sinfo)
 
 static void init_contrast(struct atmel_lcdfb_info *sinfo)
 {
+	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
+
 	/* contrast pwm can be 'inverted' */
-	if (sinfo->lcdcon_pol_negative)
+	if (pdata->lcdcon_pol_negative)
 			contrast_ctr &= ~(ATMEL_LCDC_POL_POSITIVE);
 
 	/* have some default contrast/backlight settings */
 	lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_CTR, contrast_ctr);
 	lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_VAL, ATMEL_LCDC_CVAL_DEFAULT);
 
-	if (sinfo->lcdcon_is_backlight)
+	if (pdata->lcdcon_is_backlight)
 		init_backlight(sinfo);
 }
 
@@ -299,9 +327,11 @@ static unsigned long compute_hozval(struct atmel_lcdfb_info *sinfo,
 
 static void atmel_lcdfb_stop_nowait(struct atmel_lcdfb_info *sinfo)
 {
+	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
+
 	/* Turn off the LCD controller and the DMA controller */
 	lcdc_writel(sinfo, ATMEL_LCDC_PWRCON,
-			sinfo->guard_time << ATMEL_LCDC_GUARDT_OFFSET);
+			pdata->guard_time << ATMEL_LCDC_GUARDT_OFFSET);
 
 	/* Wait for the LCDC core to become idle */
 	while (lcdc_readl(sinfo, ATMEL_LCDC_PWRCON) & ATMEL_LCDC_BUSY)
@@ -321,9 +351,11 @@ static void atmel_lcdfb_stop(struct atmel_lcdfb_info *sinfo)
 
 static void atmel_lcdfb_start(struct atmel_lcdfb_info *sinfo)
 {
-	lcdc_writel(sinfo, ATMEL_LCDC_DMACON, sinfo->default_dmacon);
+	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
+
+	lcdc_writel(sinfo, ATMEL_LCDC_DMACON, pdata->default_dmacon);
 	lcdc_writel(sinfo, ATMEL_LCDC_PWRCON,
-		(sinfo->guard_time << ATMEL_LCDC_GUARDT_OFFSET)
+		(pdata->guard_time << ATMEL_LCDC_GUARDT_OFFSET)
 		| ATMEL_LCDC_PWR);
 }
 
@@ -424,6 +456,7 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var,
 {
 	struct device *dev = info->device;
 	struct atmel_lcdfb_info *sinfo = info->par;
+	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
 	unsigned long clk_value_khz;
 
 	clk_value_khz = clk_get_rate(sinfo->lcdc_clk) / 1000;
@@ -510,7 +543,7 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var,
 		else
 			var->green.length = 6;
 
-		if (sinfo->lcd_wiring_mode == ATMEL_LCDC_WIRING_RGB) {
+		if (pdata->lcd_wiring_mode == ATMEL_LCDC_WIRING_RGB) {
 			/* RGB:5X5 mode */
 			var->red.offset = var->green.length + 5;
 			var->blue.offset = 0;
@@ -527,7 +560,7 @@ static int atmel_lcdfb_check_var(struct fb_var_screeninfo *var,
 		var->transp.length = 8;
 		/* fall through */
 	case 24:
-		if (sinfo->lcd_wiring_mode == ATMEL_LCDC_WIRING_RGB) {
+		if (pdata->lcd_wiring_mode == ATMEL_LCDC_WIRING_RGB) {
 			/* RGB:888 mode */
 			var->red.offset = 16;
 			var->blue.offset = 0;
@@ -576,6 +609,7 @@ static void atmel_lcdfb_reset(struct atmel_lcdfb_info *sinfo)
 static int atmel_lcdfb_set_par(struct fb_info *info)
 {
 	struct atmel_lcdfb_info *sinfo = info->par;
+	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
 	unsigned long hozval_linesz;
 	unsigned long value;
 	unsigned long clk_value_khz;
@@ -637,7 +671,7 @@ static int atmel_lcdfb_set_par(struct fb_info *info)
 
 
 	/* Initialize control register 2 */
-	value = sinfo->default_lcdcon2;
+	value = pdata->default_lcdcon2;
 
 	if (!(info->var.sync & FB_SYNC_HOR_HIGH_ACT))
 		value |= ATMEL_LCDC_INVLINE_INVERTED;
@@ -741,6 +775,7 @@ static int atmel_lcdfb_setcolreg(unsigned int regno, unsigned int red,
 			     unsigned int transp, struct fb_info *info)
 {
 	struct atmel_lcdfb_info *sinfo = info->par;
+	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
 	unsigned int val;
 	u32 *pal;
 	int ret = 1;
@@ -777,8 +812,7 @@ static int atmel_lcdfb_setcolreg(unsigned int regno, unsigned int red,
 				 */
 			} else {
 				/* new style BGR:565 / RGB:565 */
-				if (sinfo->lcd_wiring_mode ==
-				    ATMEL_LCDC_WIRING_RGB) {
+				if (pdata->lcd_wiring_mode == ATMEL_LCDC_WIRING_RGB) {
 					val  = ((blue >> 11) & 0x001f);
 					val |= ((red  >>  0) & 0xf800);
 				} else {
@@ -918,7 +952,7 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct fb_info *info;
 	struct atmel_lcdfb_info *sinfo;
-	struct atmel_lcdfb_info *pdata_sinfo;
+	struct atmel_lcdfb_pdata *pdata;
 	struct fb_videomode fbmode;
 	struct resource *regs = NULL;
 	struct resource *map = NULL;
@@ -936,17 +970,8 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev)
 	sinfo = info->par;
 
 	if (dev_get_platdata(dev)) {
-		pdata_sinfo = dev_get_platdata(dev);
-		sinfo->default_bpp = pdata_sinfo->default_bpp;
-		sinfo->default_dmacon = pdata_sinfo->default_dmacon;
-		sinfo->default_lcdcon2 = pdata_sinfo->default_lcdcon2;
-		sinfo->default_monspecs = pdata_sinfo->default_monspecs;
-		sinfo->atmel_lcdfb_power_control = pdata_sinfo->atmel_lcdfb_power_control;
-		sinfo->guard_time = pdata_sinfo->guard_time;
-		sinfo->smem_len = pdata_sinfo->smem_len;
-		sinfo->lcdcon_is_backlight = pdata_sinfo->lcdcon_is_backlight;
-		sinfo->lcdcon_pol_negative = pdata_sinfo->lcdcon_pol_negative;
-		sinfo->lcd_wiring_mode = pdata_sinfo->lcd_wiring_mode;
+		pdata = dev_get_platdata(dev);
+		sinfo->pdata = *pdata;
 	} else {
 		dev_err(dev, "cannot get default configuration\n");
 		goto free_info;
@@ -962,7 +987,7 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev)
 	info->pseudo_palette = sinfo->pseudo_palette;
 	info->fbops = &atmel_lcdfb_ops;
 
-	memcpy(&info->monspecs, sinfo->default_monspecs, sizeof(info->monspecs));
+	memcpy(&info->monspecs, pdata->default_monspecs, sizeof(info->monspecs));
 	info->fix = atmel_lcdfb_fix;
 
 	/* Enable LCDC Clocks */
@@ -980,7 +1005,7 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev)
 
 	ret = fb_find_mode(&info->var, info, NULL, info->monspecs.modedb,
 			info->monspecs.modedb_len, info->monspecs.modedb,
-			sinfo->default_bpp);
+			pdata->default_bpp);
 	if (!ret) {
 		dev_err(dev, "no suitable video mode found\n");
 		goto stop_clk;
@@ -1097,8 +1122,8 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev)
 	fb_add_videomode(&fbmode, &info->modelist);
 
 	/* Power up the LCDC screen */
-	if (sinfo->atmel_lcdfb_power_control)
-		sinfo->atmel_lcdfb_power_control(1);
+	if (pdata->atmel_lcdfb_power_control)
+		pdata->atmel_lcdfb_power_control(1);
 
 	dev_info(dev, "fb%d: Atmel LCDC at 0x%08lx (mapped at %p), irq %d\n",
 		       info->node, info->fix.mmio_start, sinfo->mmio, sinfo->irq_base);
@@ -1141,15 +1166,17 @@ static int __exit atmel_lcdfb_remove(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct fb_info *info = dev_get_drvdata(dev);
 	struct atmel_lcdfb_info *sinfo;
+	struct atmel_lcdfb_pdata *pdata;
 
 	if (!info || !info->par)
 		return 0;
 	sinfo = info->par;
+	pdata = &sinfo->pdata;
 
 	cancel_work_sync(&sinfo->task);
 	exit_backlight(sinfo);
-	if (sinfo->atmel_lcdfb_power_control)
-		sinfo->atmel_lcdfb_power_control(0);
+	if (pdata->atmel_lcdfb_power_control)
+		pdata->atmel_lcdfb_power_control(0);
 	unregister_framebuffer(info);
 	atmel_lcdfb_stop_clock(sinfo);
 	clk_put(sinfo->lcdc_clk);
@@ -1176,6 +1203,7 @@ static int atmel_lcdfb_suspend(struct platform_device *pdev, pm_message_t mesg)
 {
 	struct fb_info *info = platform_get_drvdata(pdev);
 	struct atmel_lcdfb_info *sinfo = info->par;
+	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
 
 	/*
 	 * We don't want to handle interrupts while the clock is
@@ -1185,8 +1213,8 @@ static int atmel_lcdfb_suspend(struct platform_device *pdev, pm_message_t mesg)
 
 	sinfo->saved_lcdcon = lcdc_readl(sinfo, ATMEL_LCDC_CONTRAST_CTR);
 	lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_CTR, 0);
-	if (sinfo->atmel_lcdfb_power_control)
-		sinfo->atmel_lcdfb_power_control(0);
+	if (pdata->atmel_lcdfb_power_control)
+		pdata->atmel_lcdfb_power_control(0);
 
 	atmel_lcdfb_stop(sinfo);
 	atmel_lcdfb_stop_clock(sinfo);
@@ -1198,11 +1226,12 @@ static int atmel_lcdfb_resume(struct platform_device *pdev)
 {
 	struct fb_info *info = platform_get_drvdata(pdev);
 	struct atmel_lcdfb_info *sinfo = info->par;
+	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
 
 	atmel_lcdfb_start_clock(sinfo);
 	atmel_lcdfb_start(sinfo);
-	if (sinfo->atmel_lcdfb_power_control)
-		sinfo->atmel_lcdfb_power_control(1);
+	if (pdata->atmel_lcdfb_power_control)
+		pdata->atmel_lcdfb_power_control(1);
 	lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_CTR, sinfo->saved_lcdcon);
 
 	/* Enable FIFO & DMA errors */
diff --git a/include/video/atmel_lcdc.h b/include/video/atmel_lcdc.h
index 0f5a2fc69af9..f197c54712b0 100644
--- a/include/video/atmel_lcdc.h
+++ b/include/video/atmel_lcdc.h
@@ -31,39 +31,18 @@
 #define ATMEL_LCDC_WIRING_BGR	0
 #define ATMEL_LCDC_WIRING_RGB	1
 
-struct atmel_lcdfb_config;
 
  /* LCD Controller info data structure, stored in device platform_data */
-struct atmel_lcdfb_info {
-	spinlock_t		lock;
-	struct fb_info		*info;
-	void __iomem		*mmio;
-	int			irq_base;
-	struct work_struct	task;
-
+struct atmel_lcdfb_pdata {
 	unsigned int		guard_time;
-	unsigned int 		smem_len;
-	struct platform_device	*pdev;
-	struct clk		*bus_clk;
-	struct clk		*lcdc_clk;
-
-#ifdef CONFIG_BACKLIGHT_ATMEL_LCDC
-	struct backlight_device	*backlight;
-	u8			bl_power;
-#endif
 	bool			lcdcon_is_backlight;
 	bool			lcdcon_pol_negative;
-	u8			saved_lcdcon;
-
 	u8			default_bpp;
 	u8			lcd_wiring_mode;
 	unsigned int		default_lcdcon2;
 	unsigned int		default_dmacon;
 	void (*atmel_lcdfb_power_control)(int on);
 	struct fb_monspecs	*default_monspecs;
-	u32			pseudo_palette[16];
-
-	struct atmel_lcdfb_config *config;
 };
 
 #define ATMEL_LCDC_DMABADDR1	0x00
-- 
cgit 


From 42110e91de7f66f6276afdec8040aedbb8c5a6fd Mon Sep 17 00:00:00 2001
From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Date: Thu, 11 Apr 2013 17:54:04 +0800
Subject: video: atmel_lcdfb: introduce atmel_lcdfb_power_control

to simplify the check on the presence of the callback

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/atmel_lcdfb.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index 0d7214df1237..3c7609c1c6fe 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -288,6 +288,13 @@ static void init_contrast(struct atmel_lcdfb_info *sinfo)
 		init_backlight(sinfo);
 }
 
+static inline void atmel_lcdfb_power_control(struct atmel_lcdfb_info *sinfo, int on)
+{
+	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
+
+	if (pdata->atmel_lcdfb_power_control)
+		pdata->atmel_lcdfb_power_control(on);
+}
 
 static struct fb_fix_screeninfo atmel_lcdfb_fix __initdata = {
 	.type		= FB_TYPE_PACKED_PIXELS,
@@ -1122,8 +1129,7 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev)
 	fb_add_videomode(&fbmode, &info->modelist);
 
 	/* Power up the LCDC screen */
-	if (pdata->atmel_lcdfb_power_control)
-		pdata->atmel_lcdfb_power_control(1);
+	atmel_lcdfb_power_control(sinfo, 1);
 
 	dev_info(dev, "fb%d: Atmel LCDC at 0x%08lx (mapped at %p), irq %d\n",
 		       info->node, info->fix.mmio_start, sinfo->mmio, sinfo->irq_base);
@@ -1175,8 +1181,7 @@ static int __exit atmel_lcdfb_remove(struct platform_device *pdev)
 
 	cancel_work_sync(&sinfo->task);
 	exit_backlight(sinfo);
-	if (pdata->atmel_lcdfb_power_control)
-		pdata->atmel_lcdfb_power_control(0);
+	atmel_lcdfb_power_control(sinfo, 0);
 	unregister_framebuffer(info);
 	atmel_lcdfb_stop_clock(sinfo);
 	clk_put(sinfo->lcdc_clk);
@@ -1203,7 +1208,6 @@ static int atmel_lcdfb_suspend(struct platform_device *pdev, pm_message_t mesg)
 {
 	struct fb_info *info = platform_get_drvdata(pdev);
 	struct atmel_lcdfb_info *sinfo = info->par;
-	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
 
 	/*
 	 * We don't want to handle interrupts while the clock is
@@ -1213,9 +1217,7 @@ static int atmel_lcdfb_suspend(struct platform_device *pdev, pm_message_t mesg)
 
 	sinfo->saved_lcdcon = lcdc_readl(sinfo, ATMEL_LCDC_CONTRAST_CTR);
 	lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_CTR, 0);
-	if (pdata->atmel_lcdfb_power_control)
-		pdata->atmel_lcdfb_power_control(0);
-
+	atmel_lcdfb_power_control(sinfo, 0);
 	atmel_lcdfb_stop(sinfo);
 	atmel_lcdfb_stop_clock(sinfo);
 
@@ -1226,12 +1228,10 @@ static int atmel_lcdfb_resume(struct platform_device *pdev)
 {
 	struct fb_info *info = platform_get_drvdata(pdev);
 	struct atmel_lcdfb_info *sinfo = info->par;
-	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
 
 	atmel_lcdfb_start_clock(sinfo);
 	atmel_lcdfb_start(sinfo);
-	if (pdata->atmel_lcdfb_power_control)
-		pdata->atmel_lcdfb_power_control(1);
+	atmel_lcdfb_power_control(sinfo, 1);
 	lcdc_writel(sinfo, ATMEL_LCDC_CONTRAST_CTR, sinfo->saved_lcdcon);
 
 	/* Enable FIFO & DMA errors */
-- 
cgit 


From ce3b64f5f1ba9126c7f97115c15abe9c322d24e1 Mon Sep 17 00:00:00 2001
From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Date: Fri, 29 Mar 2013 02:05:47 +0800
Subject: video: atmel_lcdfb: pass the pdata as params

so we can use have list gpio as example (probe via DT)

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 arch/arm/mach-at91/board-sam9261ek.c   | 4 ++--
 arch/arm/mach-at91/board-sam9263ek.c   | 2 +-
 arch/arm/mach-at91/board-sam9rlek.c    | 2 +-
 arch/avr32/boards/atngw100/evklcd10x.c | 2 +-
 drivers/video/atmel_lcdfb.c            | 2 +-
 include/video/atmel_lcdc.h             | 4 +++-
 6 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/arch/arm/mach-at91/board-sam9261ek.c b/arch/arm/mach-at91/board-sam9261ek.c
index 4ab1ba7557e4..473546b9408b 100644
--- a/arch/arm/mach-at91/board-sam9261ek.c
+++ b/arch/arm/mach-at91/board-sam9261ek.c
@@ -389,7 +389,7 @@ static struct fb_monspecs at91fb_default_stn_monspecs = {
 					| ATMEL_LCDC_IFWIDTH_4 \
 					| ATMEL_LCDC_SCANMOD_SINGLE)
 
-static void at91_lcdc_stn_power_control(int on)
+static void at91_lcdc_stn_power_control(struct atmel_lcdfb_pdata *pdata, int on)
 {
 	/* backlight */
 	if (on) {	/* power up */
@@ -445,7 +445,7 @@ static struct fb_monspecs at91fb_default_tft_monspecs = {
 					| ATMEL_LCDC_DISTYPE_TFT    \
 					| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 
-static void at91_lcdc_tft_power_control(int on)
+static void at91_lcdc_tft_power_control(struct atmel_lcdfb_pdata *pdata, int on)
 {
 	if (on)
 		at91_set_gpio_value(AT91_PIN_PA12, 0);	/* power up */
diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c
index 0fdae3f1541d..8b4942cbb6d9 100644
--- a/arch/arm/mach-at91/board-sam9263ek.c
+++ b/arch/arm/mach-at91/board-sam9263ek.c
@@ -275,7 +275,7 @@ static struct fb_monspecs at91fb_default_monspecs = {
 					| ATMEL_LCDC_DISTYPE_TFT \
 					| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 
-static void at91_lcdc_power_control(int on)
+static void at91_lcdc_power_control(struct atmel_lcdfb_pdata *pdata, int on)
 {
 	at91_set_gpio_value(AT91_PIN_PA30, on);
 }
diff --git a/arch/arm/mach-at91/board-sam9rlek.c b/arch/arm/mach-at91/board-sam9rlek.c
index b77d7a9febd8..604eecf6cd70 100644
--- a/arch/arm/mach-at91/board-sam9rlek.c
+++ b/arch/arm/mach-at91/board-sam9rlek.c
@@ -170,7 +170,7 @@ static struct fb_monspecs at91fb_default_monspecs = {
 					| ATMEL_LCDC_DISTYPE_TFT \
 					| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE)
 
-static void at91_lcdc_power_control(int on)
+static void at91_lcdc_power_control(struct atmel_lcdfb_pdata *pdata, int on)
 {
 	if (on)
 		at91_set_gpio_value(AT91_PIN_PC1, 0);	/* power up */
diff --git a/arch/avr32/boards/atngw100/evklcd10x.c b/arch/avr32/boards/atngw100/evklcd10x.c
index dc4280413e9d..64919b0da7aa 100644
--- a/arch/avr32/boards/atngw100/evklcd10x.c
+++ b/arch/avr32/boards/atngw100/evklcd10x.c
@@ -145,7 +145,7 @@ static struct atmel_lcdfb_pdata __initdata atevklcd10x_lcdc_data = {
 };
 #endif
 
-static void atevklcd10x_lcdc_power_control(int on)
+static void atevklcd10x_lcdc_power_control(struct atmel_lcdfb_pdata *pdata, int on)
 {
 	gpio_set_value(GPIO_PIN_PB(15), on);
 }
diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index 3c7609c1c6fe..790a501538b0 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -293,7 +293,7 @@ static inline void atmel_lcdfb_power_control(struct atmel_lcdfb_info *sinfo, int
 	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
 
 	if (pdata->atmel_lcdfb_power_control)
-		pdata->atmel_lcdfb_power_control(on);
+		pdata->atmel_lcdfb_power_control(pdata, on);
 }
 
 static struct fb_fix_screeninfo atmel_lcdfb_fix __initdata = {
diff --git a/include/video/atmel_lcdc.h b/include/video/atmel_lcdc.h
index f197c54712b0..c79f38131926 100644
--- a/include/video/atmel_lcdc.h
+++ b/include/video/atmel_lcdc.h
@@ -41,8 +41,10 @@ struct atmel_lcdfb_pdata {
 	u8			lcd_wiring_mode;
 	unsigned int		default_lcdcon2;
 	unsigned int		default_dmacon;
-	void (*atmel_lcdfb_power_control)(int on);
+	void (*atmel_lcdfb_power_control)(struct atmel_lcdfb_pdata *pdata, int on);
 	struct fb_monspecs	*default_monspecs;
+
+	struct list_head	pwr_gpios;
 };
 
 #define ATMEL_LCDC_DMABADDR1	0x00
-- 
cgit 


From b985172b328abc6de495a87ab998b267c5a09c16 Mon Sep 17 00:00:00 2001
From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Date: Fri, 29 Mar 2013 02:05:47 +0800
Subject: video: atmel_lcdfb: add device tree suport

get display timings from device tree
Use videomode helpers to get display timings and configurations from
device tree

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 .../devicetree/bindings/video/atmel,lcdc.txt       |  75 +++++++
 drivers/video/Kconfig                              |   2 +
 drivers/video/atmel_lcdfb.c                        | 246 ++++++++++++++++++---
 3 files changed, 291 insertions(+), 32 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/video/atmel,lcdc.txt

diff --git a/Documentation/devicetree/bindings/video/atmel,lcdc.txt b/Documentation/devicetree/bindings/video/atmel,lcdc.txt
new file mode 100644
index 000000000000..1ec175eddca8
--- /dev/null
+++ b/Documentation/devicetree/bindings/video/atmel,lcdc.txt
@@ -0,0 +1,75 @@
+Atmel LCDC Framebuffer
+-----------------------------------------------------
+
+Required properties:
+- compatible :
+	"atmel,at91sam9261-lcdc" , 
+	"atmel,at91sam9263-lcdc" ,
+	"atmel,at91sam9g10-lcdc" ,
+	"atmel,at91sam9g45-lcdc" ,
+	"atmel,at91sam9g45es-lcdc" ,
+	"atmel,at91sam9rl-lcdc" ,
+	"atmel,at32ap-lcdc"
+- reg : Should contain 1 register ranges(address and length)
+- interrupts : framebuffer controller interrupt
+- display: a phandle pointing to the display node
+
+Required nodes:
+- display: a display node is required to initialize the lcd panel
+	This should be in the board dts.
+- default-mode: a videomode within the display with timing parameters
+	as specified below.
+
+Example:
+
+	fb0: fb@0x00500000 {
+		compatible = "atmel,at91sam9g45-lcdc";
+		reg = <0x00500000 0x1000>;
+		interrupts = <23 3 0>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_fb>;
+		display = <&display0>;
+		status = "okay";
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+	};
+
+Atmel LCDC Display
+-----------------------------------------------------
+Required properties (as per of_videomode_helper):
+
+ - atmel,dmacon: dma controler configuration
+ - atmel,lcdcon2: lcd controler configuration
+ - atmel,guard-time: lcd guard time (Delay in frame periods)
+ - bits-per-pixel: lcd panel bit-depth.
+
+Optional properties (as per of_videomode_helper):
+ - atmel,lcdcon-backlight: enable backlight
+ - atmel,lcd-wiring-mode: lcd wiring mode "RGB" or "BRG"
+ - atmel,power-control-gpio: gpio to power on or off the LCD (as many as needed)
+
+Example:
+	display0: display {
+		bits-per-pixel = <32>;
+		atmel,lcdcon-backlight;
+		atmel,dmacon = <0x1>;
+		atmel,lcdcon2 = <0x80008002>;
+		atmel,guard-time = <9>;
+		atmel,lcd-wiring-mode = <1>;
+
+		display-timings {
+			native-mode = <&timing0>;
+			timing0: timing0 {
+				clock-frequency = <9000000>;
+				hactive = <480>;
+				vactive = <272>;
+				hback-porch = <1>;
+				hfront-porch = <1>;
+				vback-porch = <40>;
+				vfront-porch = <1>;
+				hsync-len = <45>;
+				vsync-len = <1>;
+			};
+		};
+	};
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 84b685f7ab6e..14317b70b413 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -996,6 +996,8 @@ config FB_ATMEL
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
+	select FB_MODE_HELPERS
+	select VIDEOMODE_HELPERS
 	help
 	  This enables support for the AT91/AT32 LCD Controller.
 
diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index 790a501538b0..8521051cf946 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -20,7 +20,11 @@
 #include <linux/gfp.h>
 #include <linux/module.h>
 #include <linux/platform_data/atmel.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
 #include <video/of_display_timing.h>
+#include <video/videomode.h>
 
 #include <mach/cpu.h>
 #include <asm/gpio.h>
@@ -58,6 +62,13 @@ struct atmel_lcdfb_info {
 	struct atmel_lcdfb_config *config;
 };
 
+struct atmel_lcdfb_power_ctrl_gpio {
+	int gpio;
+	int active_low;
+
+	struct list_head list;
+};
+
 #define lcdc_readl(sinfo, reg)		__raw_readl((sinfo)->mmio+(reg))
 #define lcdc_writel(sinfo, reg, val)	__raw_writel((val), (sinfo)->mmio+(reg))
 
@@ -953,16 +964,187 @@ static void atmel_lcdfb_stop_clock(struct atmel_lcdfb_info *sinfo)
 	clk_disable_unprepare(sinfo->lcdc_clk);
 }
 
+#ifdef CONFIG_OF
+static const struct of_device_id atmel_lcdfb_dt_ids[] = {
+	{ .compatible = "atmel,at91sam9261-lcdc" , .data = &at91sam9261_config, },
+	{ .compatible = "atmel,at91sam9263-lcdc" , .data = &at91sam9263_config, },
+	{ .compatible = "atmel,at91sam9g10-lcdc" , .data = &at91sam9g10_config, },
+	{ .compatible = "atmel,at91sam9g45-lcdc" , .data = &at91sam9g45_config, },
+	{ .compatible = "atmel,at91sam9g45es-lcdc" , .data = &at91sam9g45es_config, },
+	{ .compatible = "atmel,at91sam9rl-lcdc" , .data = &at91sam9rl_config, },
+	{ .compatible = "atmel,at32ap-lcdc" , .data = &at32ap_config, },
+	{ /* sentinel */ }
+};
+
+MODULE_DEVICE_TABLE(of, atmel_lcdfb_dt_ids);
+
+static const char *atmel_lcdfb_wiring_modes[] = {
+	[ATMEL_LCDC_WIRING_BGR]	= "BRG",
+	[ATMEL_LCDC_WIRING_RGB]	= "RGB",
+};
+
+const int atmel_lcdfb_get_of_wiring_modes(struct device_node *np)
+{
+	const char *mode;
+	int err, i;
+
+	err = of_property_read_string(np, "atmel,lcd-wiring-mode", &mode);
+	if (err < 0)
+		return ATMEL_LCDC_WIRING_BGR;
+
+	for (i = 0; i < ARRAY_SIZE(atmel_lcdfb_wiring_modes); i++)
+		if (!strcasecmp(mode, atmel_lcdfb_wiring_modes[i]))
+			return i;
+
+	return -ENODEV;
+}
+
+static void atmel_lcdfb_power_control_gpio(struct atmel_lcdfb_pdata *pdata, int on)
+{
+	struct atmel_lcdfb_power_ctrl_gpio *og;
+
+	list_for_each_entry(og, &pdata->pwr_gpios, list)
+		gpio_set_value(og->gpio, on);
+}
+
+static int atmel_lcdfb_of_init(struct atmel_lcdfb_info *sinfo)
+{
+	struct fb_info *info = sinfo->info;
+	struct atmel_lcdfb_pdata *pdata = &sinfo->pdata;
+	struct fb_var_screeninfo *var = &info->var;
+	struct device *dev = &sinfo->pdev->dev;
+	struct device_node *np =dev->of_node;
+	struct device_node *display_np;
+	struct device_node *timings_np;
+	struct display_timings *timings;
+	enum of_gpio_flags flags;
+	struct atmel_lcdfb_power_ctrl_gpio *og;
+	bool is_gpio_power = false;
+	int ret = -ENOENT;
+	int i, gpio;
+
+	sinfo->config = (struct atmel_lcdfb_config*)
+		of_match_device(atmel_lcdfb_dt_ids, dev)->data;
+
+	display_np = of_parse_phandle(np, "display", 0);
+	if (!display_np) {
+		dev_err(dev, "failed to find display phandle\n");
+		return -ENOENT;
+	}
+
+	ret = of_property_read_u32(display_np, "bits-per-pixel", &var->bits_per_pixel);
+	if (ret < 0) {
+		dev_err(dev, "failed to get property bits-per-pixel\n");
+		goto put_display_node;
+	}
+
+	ret = of_property_read_u32(display_np, "atmel,guard-time", &pdata->guard_time);
+	if (ret < 0) {
+		dev_err(dev, "failed to get property atmel,guard-time\n");
+		goto put_display_node;
+	}
+
+	ret = of_property_read_u32(display_np, "atmel,lcdcon2", &pdata->default_lcdcon2);
+	if (ret < 0) {
+		dev_err(dev, "failed to get property atmel,lcdcon2\n");
+		goto put_display_node;
+	}
+
+	ret = of_property_read_u32(display_np, "atmel,dmacon", &pdata->default_dmacon);
+	if (ret < 0) {
+		dev_err(dev, "failed to get property bits-per-pixel\n");
+		goto put_display_node;
+	}
+
+	ret = -ENOMEM;
+	for (i = 0; i < of_gpio_named_count(display_np, "atmel,power-control-gpio"); i++) {
+		gpio = of_get_named_gpio_flags(display_np, "atmel,power-control-gpio",
+					       i, &flags);
+		if (gpio < 0)
+			continue;
+
+		og = devm_kzalloc(dev, sizeof(*og), GFP_KERNEL);
+		if (!og)
+			goto put_display_node;
+
+		og->gpio = gpio;
+		og->active_low = flags & OF_GPIO_ACTIVE_LOW;
+		is_gpio_power = true;
+		ret = devm_gpio_request(dev, gpio, "lcd-power-control-gpio");
+		if (ret) {
+			dev_err(dev, "request gpio %d failed\n", gpio);
+			goto put_display_node;
+		}
+
+		ret = gpio_direction_output(gpio, og->active_low);
+		if (ret) {
+			dev_err(dev, "set direction output gpio %d failed\n", gpio);
+			goto put_display_node;
+		}
+	}
+
+	if (is_gpio_power)
+		pdata->atmel_lcdfb_power_control = atmel_lcdfb_power_control_gpio;
+
+	ret = atmel_lcdfb_get_of_wiring_modes(display_np);
+	if (ret < 0) {
+		dev_err(dev, "invalid atmel,lcd-wiring-mode\n");
+		goto put_display_node;
+	}
+	pdata->lcd_wiring_mode = ret;
+
+	pdata->lcdcon_is_backlight = of_property_read_bool(display_np, "atmel,lcdcon-backlight");
+
+	timings = of_get_display_timings(display_np);
+	if (!timings) {
+		dev_err(dev, "failed to get display timings\n");
+		goto put_display_node;
+	}
+
+	timings_np = of_find_node_by_name(display_np, "display-timings");
+	if (!timings_np) {
+		dev_err(dev, "failed to find display-timings node\n");
+		goto put_display_node;
+	}
+
+	for (i = 0; i < of_get_child_count(timings_np); i++) {
+		struct videomode vm;
+		struct fb_videomode fb_vm;
+
+		ret = videomode_from_timings(timings, &vm, i);
+		if (ret < 0)
+			goto put_timings_node;
+		ret = fb_videomode_from_videomode(&vm, &fb_vm);
+		if (ret < 0)
+			goto put_timings_node;
+
+		fb_add_videomode(&fb_vm, &info->modelist);
+	}
+
+	return 0;
+
+put_timings_node:
+	of_node_put(timings_np);
+put_display_node:
+	of_node_put(display_np);
+	return ret;
+}
+#else
+static int atmel_lcdfb_of_init(struct atmel_lcdfb_info *sinfo)
+{
+	return 0;
+}
+#endif
 
 static int __init atmel_lcdfb_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct fb_info *info;
 	struct atmel_lcdfb_info *sinfo;
-	struct atmel_lcdfb_pdata *pdata;
-	struct fb_videomode fbmode;
+	struct atmel_lcdfb_pdata *pdata = NULL;
 	struct resource *regs = NULL;
 	struct resource *map = NULL;
+	struct fb_modelist *modelist;
 	int ret;
 
 	dev_dbg(dev, "%s BEGIN\n", __func__);
@@ -975,17 +1157,35 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev)
 	}
 
 	sinfo = info->par;
+	sinfo->pdev = pdev;
+	sinfo->info = info;
+
+	INIT_LIST_HEAD(&info->modelist);
+
+	if (pdev->dev.of_node) {
+		ret = atmel_lcdfb_of_init(sinfo);
+		if (ret)
+			goto free_info;
+	} else if (dev_get_platdata(dev)) {
+		struct fb_monspecs *monspecs;
+		int i;
 
-	if (dev_get_platdata(dev)) {
 		pdata = dev_get_platdata(dev);
+		monspecs = pdata->default_monspecs;
 		sinfo->pdata = *pdata;
+
+		for (i = 0; i < monspecs->modedb_len; i++)
+			fb_add_videomode(&monspecs->modedb[i], &info->modelist);
+
+		sinfo->config = atmel_lcdfb_get_config(pdev);
+
+		info->var.bits_per_pixel = pdata->default_bpp ? pdata->default_bpp : 16;
+		memcpy(&info->monspecs, pdata->default_monspecs, sizeof(info->monspecs));
 	} else {
 		dev_err(dev, "cannot get default configuration\n");
 		goto free_info;
 	}
-	sinfo->info = info;
-	sinfo->pdev = pdev;
-	sinfo->config = atmel_lcdfb_get_config(pdev);
+
 	if (!sinfo->config)
 		goto free_info;
 
@@ -994,7 +1194,6 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev)
 	info->pseudo_palette = sinfo->pseudo_palette;
 	info->fbops = &atmel_lcdfb_ops;
 
-	memcpy(&info->monspecs, pdata->default_monspecs, sizeof(info->monspecs));
 	info->fix = atmel_lcdfb_fix;
 
 	/* Enable LCDC Clocks */
@@ -1010,14 +1209,11 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev)
 	}
 	atmel_lcdfb_start_clock(sinfo);
 
-	ret = fb_find_mode(&info->var, info, NULL, info->monspecs.modedb,
-			info->monspecs.modedb_len, info->monspecs.modedb,
-			pdata->default_bpp);
-	if (!ret) {
-		dev_err(dev, "no suitable video mode found\n");
-		goto stop_clk;
-	}
+	modelist = list_first_entry(&info->modelist,
+			struct fb_modelist, list);
+	fb_videomode_to_var(&info->var, &modelist->mode);
 
+	atmel_lcdfb_check_var(&info->var, info);
 
 	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!regs) {
@@ -1101,18 +1297,6 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev)
 		goto unregister_irqs;
 	}
 
-	/*
-	 * This makes sure that our colour bitfield
-	 * descriptors are correctly initialised.
-	 */
-	atmel_lcdfb_check_var(&info->var, info);
-
-	ret = fb_set_var(info, &info->var);
-	if (ret) {
-		dev_warn(dev, "unable to set display parameters\n");
-		goto free_cmap;
-	}
-
 	dev_set_drvdata(dev, info);
 
 	/*
@@ -1121,13 +1305,9 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev)
 	ret = register_framebuffer(info);
 	if (ret < 0) {
 		dev_err(dev, "failed to register framebuffer device: %d\n", ret);
-		goto free_cmap;
+		goto reset_drvdata;
 	}
 
-	/* add selected videomode to modelist */
-	fb_var_to_videomode(&fbmode, &info->var);
-	fb_add_videomode(&fbmode, &info->modelist);
-
 	/* Power up the LCDC screen */
 	atmel_lcdfb_power_control(sinfo, 1);
 
@@ -1136,7 +1316,8 @@ static int __init atmel_lcdfb_probe(struct platform_device *pdev)
 
 	return 0;
 
-free_cmap:
+reset_drvdata:
+	dev_set_drvdata(dev, NULL);
 	fb_dealloc_cmap(&info->cmap);
 unregister_irqs:
 	cancel_work_sync(&sinfo->task);
@@ -1254,6 +1435,7 @@ static struct platform_driver atmel_lcdfb_driver = {
 	.driver		= {
 		.name	= "atmel_lcdfb",
 		.owner	= THIS_MODULE,
+		.of_match_table	= of_match_ptr(atmel_lcdfb_dt_ids),
 	},
 };
 
-- 
cgit 


From 40e62377103e2a9b4b22e86006a077611cf7e73e Mon Sep 17 00:00:00 2001
From: Ricardo Neri <ricardo.neri@ti.com>
Date: Fri, 13 Sep 2013 15:59:32 +0530
Subject: OMAPDSS: HDMI: OMAP4: Complete register definitions for wrapper

Add definitions for missing registers in the HDMI wrapper. Also, order
the registers by offset to improve readability.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
index 6ef2f929a76d..469d4366883d 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
@@ -31,9 +31,11 @@
 #define HDMI_WP_SYSCONFIG			0x10
 #define HDMI_WP_IRQSTATUS_RAW			0x24
 #define HDMI_WP_IRQSTATUS			0x28
-#define HDMI_WP_PWR_CTRL			0x40
 #define HDMI_WP_IRQENABLE_SET			0x2C
 #define HDMI_WP_IRQENABLE_CLR			0x30
+#define HDMI_WP_IRQWAKEEN			0x34
+#define HDMI_WP_PWR_CTRL			0x40
+#define HDMI_WP_DEBOUNCE			0x44
 #define HDMI_WP_VIDEO_CFG			0x50
 #define HDMI_WP_VIDEO_SIZE			0x60
 #define HDMI_WP_VIDEO_TIMING_H			0x68
-- 
cgit 


From a7e71262afe1b17bc5523a98a05318f0d9885394 Mon Sep 17 00:00:00 2001
From: Ricardo Neri <ricardo.neri@ti.com>
Date: Fri, 13 Sep 2013 15:59:33 +0530
Subject: OMAPDSS: HDMI: OMAP4: Complete dumping of wrapper registers

Add missing registers when dumping the HDMI wrapper. Also, order the dump by
offset to improve readability.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
index 3dfe00956a4f..ecadd7a0e005 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
@@ -859,8 +859,11 @@ void ti_hdmi_4xxx_wp_dump(struct hdmi_ip_data *ip_data, struct seq_file *s)
 	DUMPREG(HDMI_WP_SYSCONFIG);
 	DUMPREG(HDMI_WP_IRQSTATUS_RAW);
 	DUMPREG(HDMI_WP_IRQSTATUS);
-	DUMPREG(HDMI_WP_PWR_CTRL);
 	DUMPREG(HDMI_WP_IRQENABLE_SET);
+	DUMPREG(HDMI_WP_IRQENABLE_CLR);
+	DUMPREG(HDMI_WP_IRQWAKEEN);
+	DUMPREG(HDMI_WP_PWR_CTRL);
+	DUMPREG(HDMI_WP_DEBOUNCE);
 	DUMPREG(HDMI_WP_VIDEO_CFG);
 	DUMPREG(HDMI_WP_VIDEO_SIZE);
 	DUMPREG(HDMI_WP_VIDEO_TIMING_H);
-- 
cgit 


From a798eb7ee8c0b852bbca4a4ff44883ca7eac9f58 Mon Sep 17 00:00:00 2001
From: Ricardo Neri <ricardo.neri@ti.com>
Date: Fri, 13 Sep 2013 15:59:34 +0530
Subject: OMAPDSS: HDMI: OMAP4: Complete register definitions for DPLL

Add missing register definitions for spread spectrum clocking.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
index 469d4366883d..d1a23152680a 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
@@ -168,6 +168,8 @@
 #define PLLCTRL_CFG1				0xC
 #define PLLCTRL_CFG2				0x10
 #define PLLCTRL_CFG3				0x14
+#define PLLCTRL_SSC_CFG1			0x18
+#define PLLCTRL_SSC_CFG2			0x1C
 #define PLLCTRL_CFG4				0x20
 
 /* HDMI PHY */
-- 
cgit 


From 8a768c80798a37bbd49057c273bc047ce502cc8b Mon Sep 17 00:00:00 2001
From: Ricardo Neri <ricardo.neri@ti.com>
Date: Fri, 13 Sep 2013 15:59:35 +0530
Subject: OMAPDSS: HDMI: OMAP4: Complete dumping of DPLL registers

Add the spread spectrum clock configuration registers to the DPLL dump.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
index ecadd7a0e005..46af7265c4d0 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
@@ -886,6 +886,8 @@ void ti_hdmi_4xxx_pll_dump(struct hdmi_ip_data *ip_data, struct seq_file *s)
 	DUMPPLL(PLLCTRL_CFG1);
 	DUMPPLL(PLLCTRL_CFG2);
 	DUMPPLL(PLLCTRL_CFG3);
+	DUMPPLL(PLLCTRL_SSC_CFG1);
+	DUMPPLL(PLLCTRL_SSC_CFG2);
 	DUMPPLL(PLLCTRL_CFG4);
 }
 
-- 
cgit 


From 190d57c9506b024db078c921e6f50ce0bc168899 Mon Sep 17 00:00:00 2001
From: Ricardo Neri <ricardo.neri@ti.com>
Date: Fri, 13 Sep 2013 15:59:36 +0530
Subject: OMAPDSS: HDMI: OMAP4: Rename the HDMI_CORE_CTRL1 register

Rename the register to be aligned with the HDMI_CORE_SYS naming convention.
Also, update the naming of the #defines used for its fields.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | 16 ++++++++--------
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h | 11 ++++++-----
 2 files changed, 14 insertions(+), 13 deletions(-)

diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
index 46af7265c4d0..ad5b8202aa7a 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
@@ -527,7 +527,7 @@ static void hdmi_core_init(struct hdmi_core_video_config *video_cfg,
 static void hdmi_core_powerdown_disable(struct hdmi_ip_data *ip_data)
 {
 	pr_debug("Enter hdmi_core_powerdown_disable\n");
-	REG_FLD_MOD(hdmi_core_sys_base(ip_data), HDMI_CORE_CTRL1, 0x0, 0, 0);
+	REG_FLD_MOD(hdmi_core_sys_base(ip_data), HDMI_CORE_SYS_SYS_CTRL1, 0x0, 0, 0);
 }
 
 static void hdmi_core_swreset_release(struct hdmi_ip_data *ip_data)
@@ -550,12 +550,12 @@ static void hdmi_core_video_config(struct hdmi_ip_data *ip_data,
 	void __iomem *core_sys_base = hdmi_core_sys_base(ip_data);
 
 	/* sys_ctrl1 default configuration not tunable */
-	r = hdmi_read_reg(core_sys_base, HDMI_CORE_CTRL1);
-	r = FLD_MOD(r, HDMI_CORE_CTRL1_VEN_FOLLOWVSYNC, 5, 5);
-	r = FLD_MOD(r, HDMI_CORE_CTRL1_HEN_FOLLOWHSYNC, 4, 4);
-	r = FLD_MOD(r, HDMI_CORE_CTRL1_BSEL_24BITBUS, 2, 2);
-	r = FLD_MOD(r, HDMI_CORE_CTRL1_EDGE_RISINGEDGE, 1, 1);
-	hdmi_write_reg(core_sys_base, HDMI_CORE_CTRL1, r);
+	r = hdmi_read_reg(core_sys_base, HDMI_CORE_SYS_SYS_CTRL1);
+	r = FLD_MOD(r, HDMI_CORE_SYS_SYS_CTRL1_VEN_FOLLOWVSYNC, 5, 5);
+	r = FLD_MOD(r, HDMI_CORE_SYS_SYS_CTRL1_HEN_FOLLOWHSYNC, 4, 4);
+	r = FLD_MOD(r, HDMI_CORE_SYS_SYS_CTRL1_BSEL_24BITBUS, 2, 2);
+	r = FLD_MOD(r, HDMI_CORE_SYS_SYS_CTRL1_EDGE_RISINGEDGE, 1, 1);
+	hdmi_write_reg(core_sys_base, HDMI_CORE_SYS_SYS_CTRL1, r);
 
 	REG_FLD_MOD(core_sys_base,
 			HDMI_CORE_SYS_VID_ACEN, cfg->ip_bus_width, 7, 6);
@@ -909,7 +909,7 @@ void ti_hdmi_4xxx_core_dump(struct hdmi_ip_data *ip_data, struct seq_file *s)
 	DUMPCORE(HDMI_CORE_SYS_DEV_IDH);
 	DUMPCORE(HDMI_CORE_SYS_DEV_REV);
 	DUMPCORE(HDMI_CORE_SYS_SRST);
-	DUMPCORE(HDMI_CORE_CTRL1);
+	DUMPCORE(HDMI_CORE_SYS_SYS_CTRL1);
 	DUMPCORE(HDMI_CORE_SYS_SYS_STAT);
 	DUMPCORE(HDMI_CORE_SYS_DE_DLY);
 	DUMPCORE(HDMI_CORE_SYS_DE_CTRL);
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
index d1a23152680a..149abd83949c 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
@@ -53,7 +53,7 @@
 #define HDMI_CORE_SYS_DEV_IDH			0xC
 #define HDMI_CORE_SYS_DEV_REV			0x10
 #define HDMI_CORE_SYS_SRST			0x14
-#define HDMI_CORE_CTRL1				0x20
+#define HDMI_CORE_SYS_SYS_CTRL1			0x20
 #define HDMI_CORE_SYS_SYS_STAT			0x24
 #define HDMI_CORE_SYS_DE_DLY			0xC8
 #define HDMI_CORE_SYS_DE_CTRL			0xCC
@@ -72,10 +72,11 @@
 #define HDMI_CORE_SYS_UMASK1			0x1D4
 #define HDMI_CORE_SYS_TMDS_CTRL			0x208
 
-#define HDMI_CORE_CTRL1_VEN_FOLLOWVSYNC	0x1
-#define HDMI_CORE_CTRL1_HEN_FOLLOWHSYNC	0x1
-#define HDMI_CORE_CTRL1_BSEL_24BITBUS	0x1
-#define HDMI_CORE_CTRL1_EDGE_RISINGEDGE	0x1
+/* value definitions for HDMI_CORE_SYS_SYS_CTRL1 fields */
+#define HDMI_CORE_SYS_SYS_CTRL1_VEN_FOLLOWVSYNC	0x1
+#define HDMI_CORE_SYS_SYS_CTRL1_HEN_FOLLOWHSYNC	0x1
+#define HDMI_CORE_SYS_SYS_CTRL1_BSEL_24BITBUS	0x1
+#define HDMI_CORE_SYS_SYS_CTRL1_EDGE_RISINGEDGE	0x1
 
 /* HDMI DDC E-DID */
 #define HDMI_CORE_DDC_ADDR			0x3B4
-- 
cgit 


From 46c4a7551d9a8b89e3d705f1dab32b83c57493d6 Mon Sep 17 00:00:00 2001
From: Ricardo Neri <ricardo.neri@ti.com>
Date: Fri, 13 Sep 2013 15:59:37 +0530
Subject: OMAPDSS: HDMI: OMAP4: Complete register definitions for core

Add missing register definitions; mainly for colorspace conversion, video
timing and interrupt handling.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h | 48 ++++++++++++++++++++++++++++++-
 1 file changed, 47 insertions(+), 1 deletion(-)

diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
index 149abd83949c..b25269c64123 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
@@ -55,6 +55,8 @@
 #define HDMI_CORE_SYS_SRST			0x14
 #define HDMI_CORE_SYS_SYS_CTRL1			0x20
 #define HDMI_CORE_SYS_SYS_STAT			0x24
+#define HDMI_CORE_SYS_SYS_CTRL3			0x28
+#define HDMI_CORE_SYS_DCTL			0x34
 #define HDMI_CORE_SYS_DE_DLY			0xC8
 #define HDMI_CORE_SYS_DE_CTRL			0xCC
 #define HDMI_CORE_SYS_DE_TOP			0xD0
@@ -62,14 +64,58 @@
 #define HDMI_CORE_SYS_DE_CNTH			0xDC
 #define HDMI_CORE_SYS_DE_LINL			0xE0
 #define HDMI_CORE_SYS_DE_LINH_1			0xE4
+#define HDMI_CORE_SYS_HRES_L			0xE8
+#define HDMI_CORE_SYS_HRES_H			0xEC
+#define HDMI_CORE_SYS_VRES_L			0xF0
+#define HDMI_CORE_SYS_VRES_H			0xF4
+#define HDMI_CORE_SYS_IADJUST			0xF8
+#define HDMI_CORE_SYS_POLDETECT			0xFC
+#define HDMI_CORE_SYS_HWIDTH1			0x110
+#define HDMI_CORE_SYS_HWIDTH2			0x114
+#define HDMI_CORE_SYS_VWIDTH			0x11C
+#define HDMI_CORE_SYS_VID_CTRL			0x120
 #define HDMI_CORE_SYS_VID_ACEN			0x124
 #define HDMI_CORE_SYS_VID_MODE			0x128
+#define HDMI_CORE_SYS_VID_BLANK1		0x12C
+#define HDMI_CORE_SYS_VID_BLANK2		0x130
+#define HDMI_CORE_SYS_VID_BLANK3		0x134
+#define HDMI_CORE_SYS_DC_HEADER			0x138
+#define HDMI_CORE_SYS_VID_DITHER		0x13C
+#define HDMI_CORE_SYS_RGB2XVYCC_CT		0x140
+#define HDMI_CORE_SYS_R2Y_COEFF_LOW		0x144
+#define HDMI_CORE_SYS_R2Y_COEFF_UP		0x148
+#define HDMI_CORE_SYS_G2Y_COEFF_LOW		0x14C
+#define HDMI_CORE_SYS_G2Y_COEFF_UP		0x150
+#define HDMI_CORE_SYS_B2Y_COEFF_LOW		0x154
+#define HDMI_CORE_SYS_B2Y_COEFF_UP		0x158
+#define HDMI_CORE_SYS_R2CB_COEFF_LOW		0x15C
+#define HDMI_CORE_SYS_R2CB_COEFF_UP		0x160
+#define HDMI_CORE_SYS_G2CB_COEFF_LOW		0x164
+#define HDMI_CORE_SYS_G2CB_COEFF_UP		0x168
+#define HDMI_CORE_SYS_B2CB_COEFF_LOW		0x16C
+#define HDMI_CORE_SYS_B2CB_COEFF_UP		0x170
+#define HDMI_CORE_SYS_R2CR_COEFF_LOW		0x174
+#define HDMI_CORE_SYS_R2CR_COEFF_UP		0x178
+#define HDMI_CORE_SYS_G2CR_COEFF_LOW		0x17C
+#define HDMI_CORE_SYS_G2CR_COEFF_UP		0x180
+#define HDMI_CORE_SYS_B2CR_COEFF_LOW		0x184
+#define HDMI_CORE_SYS_B2CR_COEFF_UP		0x188
+#define HDMI_CORE_SYS_RGB_OFFSET_LOW		0x18C
+#define HDMI_CORE_SYS_RGB_OFFSET_UP		0x190
+#define HDMI_CORE_SYS_Y_OFFSET_LOW		0x194
+#define HDMI_CORE_SYS_Y_OFFSET_UP		0x198
+#define HDMI_CORE_SYS_CBCR_OFFSET_LOW		0x19C
+#define HDMI_CORE_SYS_CBCR_OFFSET_UP		0x1A0
 #define HDMI_CORE_SYS_INTR_STATE		0x1C0
 #define HDMI_CORE_SYS_INTR1			0x1C4
 #define HDMI_CORE_SYS_INTR2			0x1C8
 #define HDMI_CORE_SYS_INTR3			0x1CC
 #define HDMI_CORE_SYS_INTR4			0x1D0
-#define HDMI_CORE_SYS_UMASK1			0x1D4
+#define HDMI_CORE_SYS_INTR_UNMASK1		0x1D4
+#define HDMI_CORE_SYS_INTR_UNMASK2		0x1D8
+#define HDMI_CORE_SYS_INTR_UNMASK3		0x1DC
+#define HDMI_CORE_SYS_INTR_UNMASK4		0x1E0
+#define HDMI_CORE_SYS_INTR_CTRL			0x1E4
 #define HDMI_CORE_SYS_TMDS_CTRL			0x208
 
 /* value definitions for HDMI_CORE_SYS_SYS_CTRL1 fields */
-- 
cgit 


From 78145a95fb9ca3d1bb8b12be80391fa5993b90c6 Mon Sep 17 00:00:00 2001
From: Ricardo Neri <ricardo.neri@ti.com>
Date: Fri, 13 Sep 2013 15:59:38 +0530
Subject: OMAPDSS: HDMI: OMAP4: Complete dumping of core registers

Add missing register entries when dumping the core.

Signed-off-by: Ricardo Neri <ricardo.neri@ti.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | 47 ++++++++++++++++++++++++++++++-
 1 file changed, 46 insertions(+), 1 deletion(-)

diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
index ad5b8202aa7a..fd4172b41c46 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
@@ -911,6 +911,7 @@ void ti_hdmi_4xxx_core_dump(struct hdmi_ip_data *ip_data, struct seq_file *s)
 	DUMPCORE(HDMI_CORE_SYS_SRST);
 	DUMPCORE(HDMI_CORE_SYS_SYS_CTRL1);
 	DUMPCORE(HDMI_CORE_SYS_SYS_STAT);
+	DUMPCORE(HDMI_CORE_SYS_SYS_CTRL3);
 	DUMPCORE(HDMI_CORE_SYS_DE_DLY);
 	DUMPCORE(HDMI_CORE_SYS_DE_CTRL);
 	DUMPCORE(HDMI_CORE_SYS_DE_TOP);
@@ -918,14 +919,58 @@ void ti_hdmi_4xxx_core_dump(struct hdmi_ip_data *ip_data, struct seq_file *s)
 	DUMPCORE(HDMI_CORE_SYS_DE_CNTH);
 	DUMPCORE(HDMI_CORE_SYS_DE_LINL);
 	DUMPCORE(HDMI_CORE_SYS_DE_LINH_1);
+	DUMPCORE(HDMI_CORE_SYS_HRES_L);
+	DUMPCORE(HDMI_CORE_SYS_HRES_H);
+	DUMPCORE(HDMI_CORE_SYS_VRES_L);
+	DUMPCORE(HDMI_CORE_SYS_VRES_H);
+	DUMPCORE(HDMI_CORE_SYS_IADJUST);
+	DUMPCORE(HDMI_CORE_SYS_POLDETECT);
+	DUMPCORE(HDMI_CORE_SYS_HWIDTH1);
+	DUMPCORE(HDMI_CORE_SYS_HWIDTH2);
+	DUMPCORE(HDMI_CORE_SYS_VWIDTH);
+	DUMPCORE(HDMI_CORE_SYS_VID_CTRL);
 	DUMPCORE(HDMI_CORE_SYS_VID_ACEN);
 	DUMPCORE(HDMI_CORE_SYS_VID_MODE);
+	DUMPCORE(HDMI_CORE_SYS_VID_BLANK1);
+	DUMPCORE(HDMI_CORE_SYS_VID_BLANK3);
+	DUMPCORE(HDMI_CORE_SYS_VID_BLANK1);
+	DUMPCORE(HDMI_CORE_SYS_DC_HEADER);
+	DUMPCORE(HDMI_CORE_SYS_VID_DITHER);
+	DUMPCORE(HDMI_CORE_SYS_RGB2XVYCC_CT);
+	DUMPCORE(HDMI_CORE_SYS_R2Y_COEFF_LOW);
+	DUMPCORE(HDMI_CORE_SYS_R2Y_COEFF_UP);
+	DUMPCORE(HDMI_CORE_SYS_G2Y_COEFF_LOW);
+	DUMPCORE(HDMI_CORE_SYS_G2Y_COEFF_UP);
+	DUMPCORE(HDMI_CORE_SYS_B2Y_COEFF_LOW);
+	DUMPCORE(HDMI_CORE_SYS_B2Y_COEFF_UP);
+	DUMPCORE(HDMI_CORE_SYS_R2CB_COEFF_LOW);
+	DUMPCORE(HDMI_CORE_SYS_R2CB_COEFF_UP);
+	DUMPCORE(HDMI_CORE_SYS_G2CB_COEFF_LOW);
+	DUMPCORE(HDMI_CORE_SYS_G2CB_COEFF_UP);
+	DUMPCORE(HDMI_CORE_SYS_B2CB_COEFF_LOW);
+	DUMPCORE(HDMI_CORE_SYS_B2CB_COEFF_UP);
+	DUMPCORE(HDMI_CORE_SYS_R2CR_COEFF_LOW);
+	DUMPCORE(HDMI_CORE_SYS_R2CR_COEFF_UP);
+	DUMPCORE(HDMI_CORE_SYS_G2CR_COEFF_LOW);
+	DUMPCORE(HDMI_CORE_SYS_G2CR_COEFF_UP);
+	DUMPCORE(HDMI_CORE_SYS_B2CR_COEFF_LOW);
+	DUMPCORE(HDMI_CORE_SYS_B2CR_COEFF_UP);
+	DUMPCORE(HDMI_CORE_SYS_RGB_OFFSET_LOW);
+	DUMPCORE(HDMI_CORE_SYS_RGB_OFFSET_UP);
+	DUMPCORE(HDMI_CORE_SYS_Y_OFFSET_LOW);
+	DUMPCORE(HDMI_CORE_SYS_Y_OFFSET_UP);
+	DUMPCORE(HDMI_CORE_SYS_CBCR_OFFSET_LOW);
+	DUMPCORE(HDMI_CORE_SYS_CBCR_OFFSET_UP);
 	DUMPCORE(HDMI_CORE_SYS_INTR_STATE);
 	DUMPCORE(HDMI_CORE_SYS_INTR1);
 	DUMPCORE(HDMI_CORE_SYS_INTR2);
 	DUMPCORE(HDMI_CORE_SYS_INTR3);
 	DUMPCORE(HDMI_CORE_SYS_INTR4);
-	DUMPCORE(HDMI_CORE_SYS_UMASK1);
+	DUMPCORE(HDMI_CORE_SYS_INTR_UNMASK1);
+	DUMPCORE(HDMI_CORE_SYS_INTR_UNMASK2);
+	DUMPCORE(HDMI_CORE_SYS_INTR_UNMASK3);
+	DUMPCORE(HDMI_CORE_SYS_INTR_UNMASK4);
+	DUMPCORE(HDMI_CORE_SYS_INTR_CTRL);
 	DUMPCORE(HDMI_CORE_SYS_TMDS_CTRL);
 
 	DUMPCORE(HDMI_CORE_DDC_ADDR);
-- 
cgit 


From af5c269799feaef110e59ce55b497cdd08712b0c Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Fri, 27 Sep 2013 12:49:33 +0100
Subject: GFS2: Clean up reservation removal

The reservation for an inode should be cleared when it is truncated so
that we can start again at a different offset for future allocations.
We could try and do better than that, by resetting the search based on
where the truncation started from, but this is only a first step.

In addition, there are three callers of gfs2_rs_delete() but only one
of those should really be testing the value of i_writecount. While
we get away with that in the other cases currently, I think it would
be better if we made that test specific to the one case which
requires it.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---
 fs/gfs2/bmap.c  | 4 +++-
 fs/gfs2/file.c  | 2 +-
 fs/gfs2/inode.c | 2 +-
 fs/gfs2/rgrp.c  | 7 +++----
 fs/gfs2/rgrp.h  | 2 +-
 fs/gfs2/super.c | 2 +-
 6 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 62a65fc448dc..21ad0f11cad4 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -1279,6 +1279,7 @@ do_grow_qunlock:
 
 int gfs2_setattr_size(struct inode *inode, u64 newsize)
 {
+	struct gfs2_inode *ip = GFS2_I(inode);
 	int ret;
 	u64 oldsize;
 
@@ -1294,7 +1295,7 @@ int gfs2_setattr_size(struct inode *inode, u64 newsize)
 
 	inode_dio_wait(inode);
 
-	ret = gfs2_rs_alloc(GFS2_I(inode));
+	ret = gfs2_rs_alloc(ip);
 	if (ret)
 		goto out;
 
@@ -1304,6 +1305,7 @@ int gfs2_setattr_size(struct inode *inode, u64 newsize)
 		goto out;
 	}
 
+	gfs2_rs_deltree(ip->i_res);
 	ret = do_shrink(inode, oldsize, newsize);
 out:
 	put_write_access(inode);
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 0621b46d474d..9ad20edc9c27 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -620,7 +620,7 @@ static int gfs2_release(struct inode *inode, struct file *file)
 	if (!(file->f_mode & FMODE_WRITE))
 		return 0;
 
-	gfs2_rs_delete(ip);
+	gfs2_rs_delete(ip, &inode->i_writecount);
 	return 0;
 }
 
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index cd58611912f5..4b79c19100d2 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -711,7 +711,7 @@ fail_gunlock2:
 fail_free_inode:
 	if (ip->i_gl)
 		gfs2_glock_put(ip->i_gl);
-	gfs2_rs_delete(ip);
+	gfs2_rs_delete(ip, NULL);
 	free_inode_nonrcu(inode);
 	inode = NULL;
 fail_gunlock:
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 285dd363199a..d4d10fadab79 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -661,14 +661,13 @@ void gfs2_rs_deltree(struct gfs2_blkreserv *rs)
 /**
  * gfs2_rs_delete - delete a multi-block reservation
  * @ip: The inode for this reservation
+ * @wcount: The inode's write count, or NULL
  *
  */
-void gfs2_rs_delete(struct gfs2_inode *ip)
+void gfs2_rs_delete(struct gfs2_inode *ip, atomic_t *wcount)
 {
-	struct inode *inode = &ip->i_inode;
-
 	down_write(&ip->i_rw_mutex);
-	if (ip->i_res && atomic_read(&inode->i_writecount) <= 1) {
+	if (ip->i_res && ((wcount == NULL) || (atomic_read(wcount) <= 1))) {
 		gfs2_rs_deltree(ip->i_res);
 		BUG_ON(ip->i_res->rs_free);
 		kmem_cache_free(gfs2_rsrv_cachep, ip->i_res);
diff --git a/fs/gfs2/rgrp.h b/fs/gfs2/rgrp.h
index 5b3f4a896e6c..57ea16ba3414 100644
--- a/fs/gfs2/rgrp.h
+++ b/fs/gfs2/rgrp.h
@@ -48,7 +48,7 @@ extern int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *n,
 
 extern int gfs2_rs_alloc(struct gfs2_inode *ip);
 extern void gfs2_rs_deltree(struct gfs2_blkreserv *rs);
-extern void gfs2_rs_delete(struct gfs2_inode *ip);
+extern void gfs2_rs_delete(struct gfs2_inode *ip, atomic_t *wcount);
 extern void __gfs2_free_blocks(struct gfs2_inode *ip, u64 bstart, u32 blen, int meta);
 extern void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen);
 extern void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
diff --git a/fs/gfs2/super.c b/fs/gfs2/super.c
index e5639dec66c4..35da5b19c0de 100644
--- a/fs/gfs2/super.c
+++ b/fs/gfs2/super.c
@@ -1526,7 +1526,7 @@ out_unlock:
 out:
 	/* Case 3 starts here */
 	truncate_inode_pages(&inode->i_data, 0);
-	gfs2_rs_delete(ip);
+	gfs2_rs_delete(ip, NULL);
 	gfs2_ordered_del_inode(ip);
 	clear_inode(inode);
 	gfs2_dir_hash_inval(ip);
-- 
cgit 


From ce42870efbf186523c2998478a444254fc280956 Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Thu, 26 Sep 2013 17:47:05 +0200
Subject: ath10k: introduce dynamic WMI structures

This is the initial framework to implement dynamic
WMI API in order to support new firmware (from so
called 10.X branch)

The realization is to have a static WMI cmd map for
each of the firmwares, registered upom wmi init.

This patch creates such map for MAIN FW, updates
wmi_cmd_send() calls to take as a parameter
the map value instead of direct WMI enum.

As soon as complete 10.X API will be on place,
we will introduce the FW IE mechanics to dynamicaly
identify which FW is being used and based on that
we will use correct map, API, structures, etc.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.h |   4 +
 drivers/net/wireless/ath/ath10k/wmi.c  | 230 +++++++++++++++++++++++++++------
 drivers/net/wireless/ath/ath10k/wmi.h  | 112 ++++++++++++++++
 3 files changed, 305 insertions(+), 41 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 292ad4577c98..acfee7c51b9e 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -107,6 +107,7 @@ struct ath10k_wmi {
 	struct completion service_ready;
 	struct completion unified_ready;
 	wait_queue_head_t tx_credits_wq;
+	struct wmi_cmd_map *cmd;
 };
 
 struct ath10k_peer_stat {
@@ -268,6 +269,9 @@ enum ath10k_fw_features {
 	/* wmi_mgmt_rx_hdr contains extra RSSI information */
 	ATH10K_FW_FEATURE_EXT_WMI_MGMT_RX = 0,
 
+	/* firmware from 10X branch */
+	ATH10K_FW_FEATURE_WMI_10X = 1,
+
 	/* keep last */
 	ATH10K_FW_FEATURE_COUNT,
 };
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 6803ead9b9cf..1296dbe7d179 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -23,6 +23,128 @@
 #include "wmi.h"
 #include "mac.h"
 
+/* MAIN WMI cmd track */
+static struct wmi_cmd_map wmi_cmd_map = {
+	.init_cmdid = WMI_INIT_CMDID,
+	.start_scan_cmdid = WMI_START_SCAN_CMDID,
+	.stop_scan_cmdid = WMI_STOP_SCAN_CMDID,
+	.scan_chan_list_cmdid = WMI_SCAN_CHAN_LIST_CMDID,
+	.scan_sch_prio_tbl_cmdid = WMI_SCAN_SCH_PRIO_TBL_CMDID,
+	.pdev_set_regdomain_cmdid = WMI_PDEV_SET_REGDOMAIN_CMDID,
+	.pdev_set_channel_cmdid = WMI_PDEV_SET_CHANNEL_CMDID,
+	.pdev_set_param_cmdid = WMI_PDEV_SET_PARAM_CMDID,
+	.pdev_pktlog_enable_cmdid = WMI_PDEV_PKTLOG_ENABLE_CMDID,
+	.pdev_pktlog_disable_cmdid = WMI_PDEV_PKTLOG_DISABLE_CMDID,
+	.pdev_set_wmm_params_cmdid = WMI_PDEV_SET_WMM_PARAMS_CMDID,
+	.pdev_set_ht_cap_ie_cmdid = WMI_PDEV_SET_HT_CAP_IE_CMDID,
+	.pdev_set_vht_cap_ie_cmdid = WMI_PDEV_SET_VHT_CAP_IE_CMDID,
+	.pdev_set_dscp_tid_map_cmdid = WMI_PDEV_SET_DSCP_TID_MAP_CMDID,
+	.pdev_set_quiet_mode_cmdid = WMI_PDEV_SET_QUIET_MODE_CMDID,
+	.pdev_green_ap_ps_enable_cmdid = WMI_PDEV_GREEN_AP_PS_ENABLE_CMDID,
+	.pdev_get_tpc_config_cmdid = WMI_PDEV_GET_TPC_CONFIG_CMDID,
+	.pdev_set_base_macaddr_cmdid = WMI_PDEV_SET_BASE_MACADDR_CMDID,
+	.vdev_create_cmdid = WMI_VDEV_CREATE_CMDID,
+	.vdev_delete_cmdid = WMI_VDEV_DELETE_CMDID,
+	.vdev_start_request_cmdid = WMI_VDEV_START_REQUEST_CMDID,
+	.vdev_restart_request_cmdid = WMI_VDEV_RESTART_REQUEST_CMDID,
+	.vdev_up_cmdid = WMI_VDEV_UP_CMDID,
+	.vdev_stop_cmdid = WMI_VDEV_STOP_CMDID,
+	.vdev_down_cmdid = WMI_VDEV_DOWN_CMDID,
+	.vdev_set_param_cmdid = WMI_VDEV_SET_PARAM_CMDID,
+	.vdev_install_key_cmdid = WMI_VDEV_INSTALL_KEY_CMDID,
+	.peer_create_cmdid = WMI_PEER_CREATE_CMDID,
+	.peer_delete_cmdid = WMI_PEER_DELETE_CMDID,
+	.peer_flush_tids_cmdid = WMI_PEER_FLUSH_TIDS_CMDID,
+	.peer_set_param_cmdid = WMI_PEER_SET_PARAM_CMDID,
+	.peer_assoc_cmdid = WMI_PEER_ASSOC_CMDID,
+	.peer_add_wds_entry_cmdid = WMI_PEER_ADD_WDS_ENTRY_CMDID,
+	.peer_remove_wds_entry_cmdid = WMI_PEER_REMOVE_WDS_ENTRY_CMDID,
+	.peer_mcast_group_cmdid = WMI_PEER_MCAST_GROUP_CMDID,
+	.bcn_tx_cmdid = WMI_BCN_TX_CMDID,
+	.pdev_send_bcn_cmdid = WMI_PDEV_SEND_BCN_CMDID,
+	.bcn_tmpl_cmdid = WMI_BCN_TMPL_CMDID,
+	.bcn_filter_rx_cmdid = WMI_BCN_FILTER_RX_CMDID,
+	.prb_req_filter_rx_cmdid = WMI_PRB_REQ_FILTER_RX_CMDID,
+	.mgmt_tx_cmdid = WMI_MGMT_TX_CMDID,
+	.prb_tmpl_cmdid = WMI_PRB_TMPL_CMDID,
+	.addba_clear_resp_cmdid = WMI_ADDBA_CLEAR_RESP_CMDID,
+	.addba_send_cmdid = WMI_ADDBA_SEND_CMDID,
+	.addba_status_cmdid = WMI_ADDBA_STATUS_CMDID,
+	.delba_send_cmdid = WMI_DELBA_SEND_CMDID,
+	.addba_set_resp_cmdid = WMI_ADDBA_SET_RESP_CMDID,
+	.send_singleamsdu_cmdid = WMI_SEND_SINGLEAMSDU_CMDID,
+	.sta_powersave_mode_cmdid = WMI_STA_POWERSAVE_MODE_CMDID,
+	.sta_powersave_param_cmdid = WMI_STA_POWERSAVE_PARAM_CMDID,
+	.sta_mimo_ps_mode_cmdid = WMI_STA_MIMO_PS_MODE_CMDID,
+	.pdev_dfs_enable_cmdid = WMI_PDEV_DFS_ENABLE_CMDID,
+	.pdev_dfs_disable_cmdid = WMI_PDEV_DFS_DISABLE_CMDID,
+	.roam_scan_mode = WMI_ROAM_SCAN_MODE,
+	.roam_scan_rssi_threshold = WMI_ROAM_SCAN_RSSI_THRESHOLD,
+	.roam_scan_period = WMI_ROAM_SCAN_PERIOD,
+	.roam_scan_rssi_change_threshold = WMI_ROAM_SCAN_RSSI_CHANGE_THRESHOLD,
+	.roam_ap_profile = WMI_ROAM_AP_PROFILE,
+	.ofl_scan_add_ap_profile = WMI_ROAM_AP_PROFILE,
+	.ofl_scan_remove_ap_profile = WMI_OFL_SCAN_REMOVE_AP_PROFILE,
+	.ofl_scan_period = WMI_OFL_SCAN_PERIOD,
+	.p2p_dev_set_device_info = WMI_P2P_DEV_SET_DEVICE_INFO,
+	.p2p_dev_set_discoverability = WMI_P2P_DEV_SET_DISCOVERABILITY,
+	.p2p_go_set_beacon_ie = WMI_P2P_GO_SET_BEACON_IE,
+	.p2p_go_set_probe_resp_ie = WMI_P2P_GO_SET_PROBE_RESP_IE,
+	.p2p_set_vendor_ie_data_cmdid = WMI_P2P_SET_VENDOR_IE_DATA_CMDID,
+	.ap_ps_peer_param_cmdid = WMI_AP_PS_PEER_PARAM_CMDID,
+	.ap_ps_peer_uapsd_coex_cmdid = WMI_AP_PS_PEER_UAPSD_COEX_CMDID,
+	.peer_rate_retry_sched_cmdid = WMI_PEER_RATE_RETRY_SCHED_CMDID,
+	.wlan_profile_trigger_cmdid = WMI_WLAN_PROFILE_TRIGGER_CMDID,
+	.wlan_profile_set_hist_intvl_cmdid =
+				WMI_WLAN_PROFILE_SET_HIST_INTVL_CMDID,
+	.wlan_profile_get_profile_data_cmdid =
+				WMI_WLAN_PROFILE_GET_PROFILE_DATA_CMDID,
+	.wlan_profile_enable_profile_id_cmdid =
+				WMI_WLAN_PROFILE_ENABLE_PROFILE_ID_CMDID,
+	.wlan_profile_list_profile_id_cmdid =
+				WMI_WLAN_PROFILE_LIST_PROFILE_ID_CMDID,
+	.pdev_suspend_cmdid = WMI_PDEV_SUSPEND_CMDID,
+	.pdev_resume_cmdid = WMI_PDEV_RESUME_CMDID,
+	.add_bcn_filter_cmdid = WMI_ADD_BCN_FILTER_CMDID,
+	.rmv_bcn_filter_cmdid = WMI_RMV_BCN_FILTER_CMDID,
+	.wow_add_wake_pattern_cmdid = WMI_WOW_ADD_WAKE_PATTERN_CMDID,
+	.wow_del_wake_pattern_cmdid = WMI_WOW_DEL_WAKE_PATTERN_CMDID,
+	.wow_enable_disable_wake_event_cmdid =
+				WMI_WOW_ENABLE_DISABLE_WAKE_EVENT_CMDID,
+	.wow_enable_cmdid = WMI_WOW_ENABLE_CMDID,
+	.wow_hostwakeup_from_sleep_cmdid = WMI_WOW_HOSTWAKEUP_FROM_SLEEP_CMDID,
+	.rtt_measreq_cmdid = WMI_RTT_MEASREQ_CMDID,
+	.rtt_tsf_cmdid = WMI_RTT_TSF_CMDID,
+	.vdev_spectral_scan_configure_cmdid =
+				WMI_VDEV_SPECTRAL_SCAN_CONFIGURE_CMDID,
+	.vdev_spectral_scan_enable_cmdid = WMI_VDEV_SPECTRAL_SCAN_ENABLE_CMDID,
+	.request_stats_cmdid = WMI_REQUEST_STATS_CMDID,
+	.set_arp_ns_offload_cmdid = WMI_SET_ARP_NS_OFFLOAD_CMDID,
+	.network_list_offload_config_cmdid =
+				WMI_NETWORK_LIST_OFFLOAD_CONFIG_CMDID,
+	.gtk_offload_cmdid = WMI_GTK_OFFLOAD_CMDID,
+	.csa_offload_enable_cmdid = WMI_CSA_OFFLOAD_ENABLE_CMDID,
+	.csa_offload_chanswitch_cmdid = WMI_CSA_OFFLOAD_CHANSWITCH_CMDID,
+	.chatter_set_mode_cmdid = WMI_CHATTER_SET_MODE_CMDID,
+	.peer_tid_addba_cmdid = WMI_PEER_TID_ADDBA_CMDID,
+	.peer_tid_delba_cmdid = WMI_PEER_TID_DELBA_CMDID,
+	.sta_dtim_ps_method_cmdid = WMI_STA_DTIM_PS_METHOD_CMDID,
+	.sta_uapsd_auto_trig_cmdid = WMI_STA_UAPSD_AUTO_TRIG_CMDID,
+	.sta_keepalive_cmd = WMI_STA_KEEPALIVE_CMD,
+	.echo_cmdid = WMI_ECHO_CMDID,
+	.pdev_utf_cmdid = WMI_PDEV_UTF_CMDID,
+	.dbglog_cfg_cmdid = WMI_DBGLOG_CFG_CMDID,
+	.pdev_qvit_cmdid = WMI_PDEV_QVIT_CMDID,
+	.pdev_ftm_intg_cmdid = WMI_PDEV_FTM_INTG_CMDID,
+	.vdev_set_keepalive_cmdid = WMI_VDEV_SET_KEEPALIVE_CMDID,
+	.vdev_get_keepalive_cmdid = WMI_VDEV_GET_KEEPALIVE_CMDID,
+	.force_fw_hang_cmdid = WMI_FORCE_FW_HANG_CMDID,
+	.gpio_config_cmdid = WMI_GPIO_CONFIG_CMDID,
+	.gpio_output_cmdid = WMI_GPIO_OUTPUT_CMDID,
+};
+
+/* TODO: 10.X WMI cmd track */
+
 int ath10k_wmi_wait_for_service_ready(struct ath10k *ar)
 {
 	int ret;
@@ -64,7 +186,7 @@ static void ath10k_wmi_htc_tx_complete(struct ath10k *ar, struct sk_buff *skb)
 }
 
 static int ath10k_wmi_cmd_send_nowait(struct ath10k *ar, struct sk_buff *skb,
-				      enum wmi_cmd_id cmd_id)
+				      u32 cmd_id)
 {
 	struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(skb);
 	struct wmi_cmd_hdr *cmd_hdr;
@@ -144,7 +266,7 @@ static void ath10k_wmi_op_ep_tx_credits(struct ath10k *ar)
 }
 
 static int ath10k_wmi_cmd_send(struct ath10k *ar, struct sk_buff *skb,
-			       enum wmi_cmd_id cmd_id)
+			       u32 cmd_id)
 {
 	int ret = -EINVAL;
 
@@ -1055,7 +1177,7 @@ static int ath10k_wmi_ready_event_rx(struct ath10k *ar, struct sk_buff *skb)
 	return 0;
 }
 
-static void ath10k_wmi_process_rx(struct ath10k *ar, struct sk_buff *skb)
+static void ath10k_wmi_main_process_rx(struct ath10k *ar, struct sk_buff *skb)
 {
 	struct wmi_cmd_hdr *cmd_hdr;
 	enum wmi_event_id id;
@@ -1174,14 +1296,31 @@ static void ath10k_wmi_process_rx(struct ath10k *ar, struct sk_buff *skb)
 	dev_kfree_skb(skb);
 }
 
+static void ath10k_wmi_process_rx(struct ath10k *ar, struct sk_buff *skb)
+{
+	if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features))
+		ath10k_warn("Firmware 10.X is not yet supported\n");
+	else
+		ath10k_wmi_main_process_rx(ar, skb);
+}
+
 /* WMI Initialization functions */
 int ath10k_wmi_attach(struct ath10k *ar)
 {
+	int ret = 0;
+
+	if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) {
+		ath10k_warn("Firmware 10.X is not yet supported\n");
+		ret = -ENOTSUPP;
+	} else {
+		ar->wmi.cmd = &wmi_cmd_map;
+	}
+
 	init_completion(&ar->wmi.service_ready);
 	init_completion(&ar->wmi.unified_ready);
 	init_waitqueue_head(&ar->wmi.tx_credits_wq);
 
-	return 0;
+	return ret;
 }
 
 void ath10k_wmi_detach(struct ath10k *ar)
@@ -1237,7 +1376,8 @@ int ath10k_wmi_pdev_set_regdomain(struct ath10k *ar, u16 rd, u16 rd2g,
 		   "wmi pdev regdomain rd %x rd2g %x rd5g %x ctl2g %x ctl5g %x\n",
 		   rd, rd2g, rd5g, ctl2g, ctl5g);
 
-	return ath10k_wmi_cmd_send(ar, skb, WMI_PDEV_SET_REGDOMAIN_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb,
+				   ar->wmi.cmd->pdev_set_regdomain_cmdid);
 }
 
 int ath10k_wmi_pdev_set_channel(struct ath10k *ar,
@@ -1267,7 +1407,8 @@ int ath10k_wmi_pdev_set_channel(struct ath10k *ar,
 		   "wmi set channel mode %d freq %d\n",
 		   arg->mode, arg->freq);
 
-	return ath10k_wmi_cmd_send(ar, skb, WMI_PDEV_SET_CHANNEL_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb,
+				   ar->wmi.cmd->pdev_set_channel_cmdid);
 }
 
 int ath10k_wmi_pdev_suspend_target(struct ath10k *ar)
@@ -1282,7 +1423,7 @@ int ath10k_wmi_pdev_suspend_target(struct ath10k *ar)
 	cmd = (struct wmi_pdev_suspend_cmd *)skb->data;
 	cmd->suspend_opt = WMI_PDEV_SUSPEND;
 
-	return ath10k_wmi_cmd_send(ar, skb, WMI_PDEV_SUSPEND_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->pdev_suspend_cmdid);
 }
 
 int ath10k_wmi_pdev_resume_target(struct ath10k *ar)
@@ -1293,7 +1434,7 @@ int ath10k_wmi_pdev_resume_target(struct ath10k *ar)
 	if (skb == NULL)
 		return -ENOMEM;
 
-	return ath10k_wmi_cmd_send(ar, skb, WMI_PDEV_RESUME_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->pdev_resume_cmdid);
 }
 
 int ath10k_wmi_pdev_set_param(struct ath10k *ar, enum wmi_pdev_param id,
@@ -1312,7 +1453,7 @@ int ath10k_wmi_pdev_set_param(struct ath10k *ar, enum wmi_pdev_param id,
 
 	ath10k_dbg(ATH10K_DBG_WMI, "wmi pdev set param %d value %d\n",
 		   id, value);
-	return ath10k_wmi_cmd_send(ar, skb, WMI_PDEV_SET_PARAM_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->pdev_set_param_cmdid);
 }
 
 int ath10k_wmi_cmd_init(struct ath10k *ar)
@@ -1382,7 +1523,7 @@ int ath10k_wmi_cmd_init(struct ath10k *ar)
 	memcpy(&cmd->resource_config, &config, sizeof(config));
 
 	ath10k_dbg(ATH10K_DBG_WMI, "wmi init\n");
-	return ath10k_wmi_cmd_send(ar, buf, WMI_INIT_CMDID);
+	return ath10k_wmi_cmd_send(ar, buf, ar->wmi.cmd->init_cmdid);
 }
 
 static int ath10k_wmi_start_scan_calc_len(const struct wmi_start_scan_arg *arg)
@@ -1543,7 +1684,7 @@ int ath10k_wmi_start_scan(struct ath10k *ar,
 	}
 
 	ath10k_dbg(ATH10K_DBG_WMI, "wmi start scan\n");
-	return ath10k_wmi_cmd_send(ar, skb, WMI_START_SCAN_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->start_scan_cmdid);
 }
 
 void ath10k_wmi_start_scan_init(struct ath10k *ar,
@@ -1603,7 +1744,7 @@ int ath10k_wmi_stop_scan(struct ath10k *ar, const struct wmi_stop_scan_arg *arg)
 	ath10k_dbg(ATH10K_DBG_WMI,
 		   "wmi stop scan reqid %d req_type %d vdev/scan_id %d\n",
 		   arg->req_id, arg->req_type, arg->u.scan_id);
-	return ath10k_wmi_cmd_send(ar, skb, WMI_STOP_SCAN_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->stop_scan_cmdid);
 }
 
 int ath10k_wmi_vdev_create(struct ath10k *ar, u32 vdev_id,
@@ -1628,7 +1769,7 @@ int ath10k_wmi_vdev_create(struct ath10k *ar, u32 vdev_id,
 		   "WMI vdev create: id %d type %d subtype %d macaddr %pM\n",
 		   vdev_id, type, subtype, macaddr);
 
-	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_CREATE_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->vdev_create_cmdid);
 }
 
 int ath10k_wmi_vdev_delete(struct ath10k *ar, u32 vdev_id)
@@ -1646,20 +1787,20 @@ int ath10k_wmi_vdev_delete(struct ath10k *ar, u32 vdev_id)
 	ath10k_dbg(ATH10K_DBG_WMI,
 		   "WMI vdev delete id %d\n", vdev_id);
 
-	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_DELETE_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->vdev_delete_cmdid);
 }
 
 static int ath10k_wmi_vdev_start_restart(struct ath10k *ar,
 				const struct wmi_vdev_start_request_arg *arg,
-				enum wmi_cmd_id cmd_id)
+				u32 cmd_id)
 {
 	struct wmi_vdev_start_request_cmd *cmd;
 	struct sk_buff *skb;
 	const char *cmdname;
 	u32 flags = 0;
 
-	if (cmd_id != WMI_VDEV_START_REQUEST_CMDID &&
-	    cmd_id != WMI_VDEV_RESTART_REQUEST_CMDID)
+	if (cmd_id != ar->wmi.cmd->vdev_start_request_cmdid &&
+	    cmd_id != ar->wmi.cmd->vdev_restart_request_cmdid)
 		return -EINVAL;
 	if (WARN_ON(arg->ssid && arg->ssid_len == 0))
 		return -EINVAL;
@@ -1668,9 +1809,9 @@ static int ath10k_wmi_vdev_start_restart(struct ath10k *ar,
 	if (WARN_ON(arg->ssid_len > sizeof(cmd->ssid.ssid)))
 		return -EINVAL;
 
-	if (cmd_id == WMI_VDEV_START_REQUEST_CMDID)
+	if (cmd_id == ar->wmi.cmd->vdev_start_request_cmdid)
 		cmdname = "start";
-	else if (cmd_id == WMI_VDEV_RESTART_REQUEST_CMDID)
+	else if (cmd_id == ar->wmi.cmd->vdev_restart_request_cmdid)
 		cmdname = "restart";
 	else
 		return -EINVAL; /* should not happen, we already check cmd_id */
@@ -1721,15 +1862,17 @@ static int ath10k_wmi_vdev_start_restart(struct ath10k *ar,
 int ath10k_wmi_vdev_start(struct ath10k *ar,
 			  const struct wmi_vdev_start_request_arg *arg)
 {
-	return ath10k_wmi_vdev_start_restart(ar, arg,
-					     WMI_VDEV_START_REQUEST_CMDID);
+	u32 cmd_id = ar->wmi.cmd->vdev_start_request_cmdid;
+
+	return ath10k_wmi_vdev_start_restart(ar, arg, cmd_id);
 }
 
 int ath10k_wmi_vdev_restart(struct ath10k *ar,
 		     const struct wmi_vdev_start_request_arg *arg)
 {
-	return ath10k_wmi_vdev_start_restart(ar, arg,
-					     WMI_VDEV_RESTART_REQUEST_CMDID);
+	u32 cmd_id = ar->wmi.cmd->vdev_restart_request_cmdid;
+
+	return ath10k_wmi_vdev_start_restart(ar, arg, cmd_id);
 }
 
 int ath10k_wmi_vdev_stop(struct ath10k *ar, u32 vdev_id)
@@ -1746,7 +1889,7 @@ int ath10k_wmi_vdev_stop(struct ath10k *ar, u32 vdev_id)
 
 	ath10k_dbg(ATH10K_DBG_WMI, "wmi vdev stop id 0x%x\n", vdev_id);
 
-	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_STOP_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->vdev_stop_cmdid);
 }
 
 int ath10k_wmi_vdev_up(struct ath10k *ar, u32 vdev_id, u32 aid, const u8 *bssid)
@@ -1767,7 +1910,7 @@ int ath10k_wmi_vdev_up(struct ath10k *ar, u32 vdev_id, u32 aid, const u8 *bssid)
 		   "wmi mgmt vdev up id 0x%x assoc id %d bssid %pM\n",
 		   vdev_id, aid, bssid);
 
-	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_UP_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->vdev_up_cmdid);
 }
 
 int ath10k_wmi_vdev_down(struct ath10k *ar, u32 vdev_id)
@@ -1785,7 +1928,7 @@ int ath10k_wmi_vdev_down(struct ath10k *ar, u32 vdev_id)
 	ath10k_dbg(ATH10K_DBG_WMI,
 		   "wmi mgmt vdev down id 0x%x\n", vdev_id);
 
-	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_DOWN_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->vdev_down_cmdid);
 }
 
 int ath10k_wmi_vdev_set_param(struct ath10k *ar, u32 vdev_id,
@@ -1807,7 +1950,7 @@ int ath10k_wmi_vdev_set_param(struct ath10k *ar, u32 vdev_id,
 		   "wmi vdev id 0x%x set param %d value %d\n",
 		   vdev_id, param_id, param_value);
 
-	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_SET_PARAM_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->vdev_set_param_cmdid);
 }
 
 int ath10k_wmi_vdev_install_key(struct ath10k *ar,
@@ -1842,7 +1985,8 @@ int ath10k_wmi_vdev_install_key(struct ath10k *ar,
 	ath10k_dbg(ATH10K_DBG_WMI,
 		   "wmi vdev install key idx %d cipher %d len %d\n",
 		   arg->key_idx, arg->key_cipher, arg->key_len);
-	return ath10k_wmi_cmd_send(ar, skb, WMI_VDEV_INSTALL_KEY_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb,
+				   ar->wmi.cmd->vdev_install_key_cmdid);
 }
 
 int ath10k_wmi_peer_create(struct ath10k *ar, u32 vdev_id,
@@ -1862,7 +2006,7 @@ int ath10k_wmi_peer_create(struct ath10k *ar, u32 vdev_id,
 	ath10k_dbg(ATH10K_DBG_WMI,
 		   "wmi peer create vdev_id %d peer_addr %pM\n",
 		   vdev_id, peer_addr);
-	return ath10k_wmi_cmd_send(ar, skb, WMI_PEER_CREATE_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->peer_create_cmdid);
 }
 
 int ath10k_wmi_peer_delete(struct ath10k *ar, u32 vdev_id,
@@ -1882,7 +2026,7 @@ int ath10k_wmi_peer_delete(struct ath10k *ar, u32 vdev_id,
 	ath10k_dbg(ATH10K_DBG_WMI,
 		   "wmi peer delete vdev_id %d peer_addr %pM\n",
 		   vdev_id, peer_addr);
-	return ath10k_wmi_cmd_send(ar, skb, WMI_PEER_DELETE_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->peer_delete_cmdid);
 }
 
 int ath10k_wmi_peer_flush(struct ath10k *ar, u32 vdev_id,
@@ -1903,7 +2047,7 @@ int ath10k_wmi_peer_flush(struct ath10k *ar, u32 vdev_id,
 	ath10k_dbg(ATH10K_DBG_WMI,
 		   "wmi peer flush vdev_id %d peer_addr %pM tids %08x\n",
 		   vdev_id, peer_addr, tid_bitmap);
-	return ath10k_wmi_cmd_send(ar, skb, WMI_PEER_FLUSH_TIDS_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->peer_flush_tids_cmdid);
 }
 
 int ath10k_wmi_peer_set_param(struct ath10k *ar, u32 vdev_id,
@@ -1927,7 +2071,7 @@ int ath10k_wmi_peer_set_param(struct ath10k *ar, u32 vdev_id,
 		   "wmi vdev %d peer 0x%pM set param %d value %d\n",
 		   vdev_id, peer_addr, param_id, param_value);
 
-	return ath10k_wmi_cmd_send(ar, skb, WMI_PEER_SET_PARAM_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->peer_set_param_cmdid);
 }
 
 int ath10k_wmi_set_psmode(struct ath10k *ar, u32 vdev_id,
@@ -1948,7 +2092,8 @@ int ath10k_wmi_set_psmode(struct ath10k *ar, u32 vdev_id,
 		   "wmi set powersave id 0x%x mode %d\n",
 		   vdev_id, psmode);
 
-	return ath10k_wmi_cmd_send(ar, skb, WMI_STA_POWERSAVE_MODE_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb,
+				   ar->wmi.cmd->sta_powersave_mode_cmdid);
 }
 
 int ath10k_wmi_set_sta_ps_param(struct ath10k *ar, u32 vdev_id,
@@ -1970,7 +2115,8 @@ int ath10k_wmi_set_sta_ps_param(struct ath10k *ar, u32 vdev_id,
 	ath10k_dbg(ATH10K_DBG_WMI,
 		   "wmi sta ps param vdev_id 0x%x param %d value %d\n",
 		   vdev_id, param_id, value);
-	return ath10k_wmi_cmd_send(ar, skb, WMI_STA_POWERSAVE_PARAM_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb,
+				   ar->wmi.cmd->sta_powersave_param_cmdid);
 }
 
 int ath10k_wmi_set_ap_ps_param(struct ath10k *ar, u32 vdev_id, const u8 *mac,
@@ -1996,7 +2142,8 @@ int ath10k_wmi_set_ap_ps_param(struct ath10k *ar, u32 vdev_id, const u8 *mac,
 		   "wmi ap ps param vdev_id 0x%X param %d value %d mac_addr %pM\n",
 		   vdev_id, param_id, value, mac);
 
-	return ath10k_wmi_cmd_send(ar, skb, WMI_AP_PS_PEER_PARAM_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb,
+				   ar->wmi.cmd->ap_ps_peer_param_cmdid);
 }
 
 int ath10k_wmi_scan_chan_list(struct ath10k *ar,
@@ -2049,7 +2196,7 @@ int ath10k_wmi_scan_chan_list(struct ath10k *ar,
 		ci->flags            |= __cpu_to_le32(flags);
 	}
 
-	return ath10k_wmi_cmd_send(ar, skb, WMI_SCAN_CHAN_LIST_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->scan_chan_list_cmdid);
 }
 
 int ath10k_wmi_peer_assoc(struct ath10k *ar,
@@ -2108,7 +2255,7 @@ int ath10k_wmi_peer_assoc(struct ath10k *ar,
 	ath10k_dbg(ATH10K_DBG_WMI,
 		   "wmi peer assoc vdev %d addr %pM\n",
 		   arg->vdev_id, arg->addr);
-	return ath10k_wmi_cmd_send(ar, skb, WMI_PEER_ASSOC_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->peer_assoc_cmdid);
 }
 
 int ath10k_wmi_beacon_send_nowait(struct ath10k *ar,
@@ -2128,7 +2275,7 @@ int ath10k_wmi_beacon_send_nowait(struct ath10k *ar,
 	cmd->hdr.bcn_len  = __cpu_to_le32(arg->bcn_len);
 	memcpy(cmd->bcn, arg->bcn, arg->bcn_len);
 
-	return ath10k_wmi_cmd_send_nowait(ar, skb, WMI_BCN_TX_CMDID);
+	return ath10k_wmi_cmd_send_nowait(ar, skb, ar->wmi.cmd->bcn_tx_cmdid);
 }
 
 static void ath10k_wmi_pdev_set_wmm_param(struct wmi_wmm_params *params,
@@ -2159,7 +2306,8 @@ int ath10k_wmi_pdev_set_wmm_params(struct ath10k *ar,
 	ath10k_wmi_pdev_set_wmm_param(&cmd->ac_vo, &arg->ac_vo);
 
 	ath10k_dbg(ATH10K_DBG_WMI, "wmi pdev set wmm params\n");
-	return ath10k_wmi_cmd_send(ar, skb, WMI_PDEV_SET_WMM_PARAMS_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb,
+				   ar->wmi.cmd->pdev_set_wmm_params_cmdid);
 }
 
 int ath10k_wmi_request_stats(struct ath10k *ar, enum wmi_stats_id stats_id)
@@ -2175,7 +2323,7 @@ int ath10k_wmi_request_stats(struct ath10k *ar, enum wmi_stats_id stats_id)
 	cmd->stats_id = __cpu_to_le32(stats_id);
 
 	ath10k_dbg(ATH10K_DBG_WMI, "wmi request stats %d\n", (int)stats_id);
-	return ath10k_wmi_cmd_send(ar, skb, WMI_REQUEST_STATS_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->request_stats_cmdid);
 }
 
 int ath10k_wmi_force_fw_hang(struct ath10k *ar,
@@ -2194,5 +2342,5 @@ int ath10k_wmi_force_fw_hang(struct ath10k *ar,
 
 	ath10k_dbg(ATH10K_DBG_WMI, "wmi force fw hang %d delay %d\n",
 		   type, delay_ms);
-	return ath10k_wmi_cmd_send(ar, skb, WMI_FORCE_FW_HANG_CMDID);
+	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->force_fw_hang_cmdid);
 }
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 2c52c23107dd..b8b446a9430f 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -208,6 +208,118 @@ struct wmi_mac_addr {
 	(c_macaddr)[5] = (((pwmi_mac_addr)->word1) >> 8) & 0xff; \
 	} while (0)
 
+struct wmi_cmd_map {
+	u32 init_cmdid;
+	u32 start_scan_cmdid;
+	u32 stop_scan_cmdid;
+	u32 scan_chan_list_cmdid;
+	u32 scan_sch_prio_tbl_cmdid;
+	u32 pdev_set_regdomain_cmdid;
+	u32 pdev_set_channel_cmdid;
+	u32 pdev_set_param_cmdid;
+	u32 pdev_pktlog_enable_cmdid;
+	u32 pdev_pktlog_disable_cmdid;
+	u32 pdev_set_wmm_params_cmdid;
+	u32 pdev_set_ht_cap_ie_cmdid;
+	u32 pdev_set_vht_cap_ie_cmdid;
+	u32 pdev_set_dscp_tid_map_cmdid;
+	u32 pdev_set_quiet_mode_cmdid;
+	u32 pdev_green_ap_ps_enable_cmdid;
+	u32 pdev_get_tpc_config_cmdid;
+	u32 pdev_set_base_macaddr_cmdid;
+	u32 vdev_create_cmdid;
+	u32 vdev_delete_cmdid;
+	u32 vdev_start_request_cmdid;
+	u32 vdev_restart_request_cmdid;
+	u32 vdev_up_cmdid;
+	u32 vdev_stop_cmdid;
+	u32 vdev_down_cmdid;
+	u32 vdev_set_param_cmdid;
+	u32 vdev_install_key_cmdid;
+	u32 peer_create_cmdid;
+	u32 peer_delete_cmdid;
+	u32 peer_flush_tids_cmdid;
+	u32 peer_set_param_cmdid;
+	u32 peer_assoc_cmdid;
+	u32 peer_add_wds_entry_cmdid;
+	u32 peer_remove_wds_entry_cmdid;
+	u32 peer_mcast_group_cmdid;
+	u32 bcn_tx_cmdid;
+	u32 pdev_send_bcn_cmdid;
+	u32 bcn_tmpl_cmdid;
+	u32 bcn_filter_rx_cmdid;
+	u32 prb_req_filter_rx_cmdid;
+	u32 mgmt_tx_cmdid;
+	u32 prb_tmpl_cmdid;
+	u32 addba_clear_resp_cmdid;
+	u32 addba_send_cmdid;
+	u32 addba_status_cmdid;
+	u32 delba_send_cmdid;
+	u32 addba_set_resp_cmdid;
+	u32 send_singleamsdu_cmdid;
+	u32 sta_powersave_mode_cmdid;
+	u32 sta_powersave_param_cmdid;
+	u32 sta_mimo_ps_mode_cmdid;
+	u32 pdev_dfs_enable_cmdid;
+	u32 pdev_dfs_disable_cmdid;
+	u32 roam_scan_mode;
+	u32 roam_scan_rssi_threshold;
+	u32 roam_scan_period;
+	u32 roam_scan_rssi_change_threshold;
+	u32 roam_ap_profile;
+	u32 ofl_scan_add_ap_profile;
+	u32 ofl_scan_remove_ap_profile;
+	u32 ofl_scan_period;
+	u32 p2p_dev_set_device_info;
+	u32 p2p_dev_set_discoverability;
+	u32 p2p_go_set_beacon_ie;
+	u32 p2p_go_set_probe_resp_ie;
+	u32 p2p_set_vendor_ie_data_cmdid;
+	u32 ap_ps_peer_param_cmdid;
+	u32 ap_ps_peer_uapsd_coex_cmdid;
+	u32 peer_rate_retry_sched_cmdid;
+	u32 wlan_profile_trigger_cmdid;
+	u32 wlan_profile_set_hist_intvl_cmdid;
+	u32 wlan_profile_get_profile_data_cmdid;
+	u32 wlan_profile_enable_profile_id_cmdid;
+	u32 wlan_profile_list_profile_id_cmdid;
+	u32 pdev_suspend_cmdid;
+	u32 pdev_resume_cmdid;
+	u32 add_bcn_filter_cmdid;
+	u32 rmv_bcn_filter_cmdid;
+	u32 wow_add_wake_pattern_cmdid;
+	u32 wow_del_wake_pattern_cmdid;
+	u32 wow_enable_disable_wake_event_cmdid;
+	u32 wow_enable_cmdid;
+	u32 wow_hostwakeup_from_sleep_cmdid;
+	u32 rtt_measreq_cmdid;
+	u32 rtt_tsf_cmdid;
+	u32 vdev_spectral_scan_configure_cmdid;
+	u32 vdev_spectral_scan_enable_cmdid;
+	u32 request_stats_cmdid;
+	u32 set_arp_ns_offload_cmdid;
+	u32 network_list_offload_config_cmdid;
+	u32 gtk_offload_cmdid;
+	u32 csa_offload_enable_cmdid;
+	u32 csa_offload_chanswitch_cmdid;
+	u32 chatter_set_mode_cmdid;
+	u32 peer_tid_addba_cmdid;
+	u32 peer_tid_delba_cmdid;
+	u32 sta_dtim_ps_method_cmdid;
+	u32 sta_uapsd_auto_trig_cmdid;
+	u32 sta_keepalive_cmd;
+	u32 echo_cmdid;
+	u32 pdev_utf_cmdid;
+	u32 dbglog_cfg_cmdid;
+	u32 pdev_qvit_cmdid;
+	u32 pdev_ftm_intg_cmdid;
+	u32 vdev_set_keepalive_cmdid;
+	u32 vdev_get_keepalive_cmdid;
+	u32 force_fw_hang_cmdid;
+	u32 gpio_config_cmdid;
+	u32 gpio_output_cmdid;
+};
+
 /*
  * wmi command groups.
  */
-- 
cgit 


From b7e3adf907f92c2749d2a8b32bff950c2a90b3fb Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Thu, 26 Sep 2013 17:47:06 +0200
Subject: ath10k: add wmi_10x_<cmd/event> definitions

Introduce the cmd and events definitions for 10.X FW API
and make up the wmi_10x_cmd_map. This is the core of
host-firmware WMI interface for 10.X FW branch.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/wmi.c | 126 +++++++++++++++++++-
 drivers/net/wireless/ath/ath10k/wmi.h | 215 +++++++++++++++++++++++++++++++++-
 2 files changed, 338 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 1296dbe7d179..cfb208244999 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -143,7 +143,127 @@ static struct wmi_cmd_map wmi_cmd_map = {
 	.gpio_output_cmdid = WMI_GPIO_OUTPUT_CMDID,
 };
 
-/* TODO: 10.X WMI cmd track */
+/* 10.X WMI cmd track */
+static struct wmi_cmd_map wmi_10x_cmd_map = {
+	.init_cmdid = WMI_10X_INIT_CMDID,
+	.start_scan_cmdid = WMI_10X_START_SCAN_CMDID,
+	.stop_scan_cmdid = WMI_10X_STOP_SCAN_CMDID,
+	.scan_chan_list_cmdid = WMI_10X_SCAN_CHAN_LIST_CMDID,
+	.scan_sch_prio_tbl_cmdid = WMI_CMD_UNDEFINED,
+	.pdev_set_regdomain_cmdid = WMI_10X_PDEV_SET_REGDOMAIN_CMDID,
+	.pdev_set_channel_cmdid = WMI_10X_PDEV_SET_CHANNEL_CMDID,
+	.pdev_set_param_cmdid = WMI_10X_PDEV_SET_PARAM_CMDID,
+	.pdev_pktlog_enable_cmdid = WMI_10X_PDEV_PKTLOG_ENABLE_CMDID,
+	.pdev_pktlog_disable_cmdid = WMI_10X_PDEV_PKTLOG_DISABLE_CMDID,
+	.pdev_set_wmm_params_cmdid = WMI_10X_PDEV_SET_WMM_PARAMS_CMDID,
+	.pdev_set_ht_cap_ie_cmdid = WMI_10X_PDEV_SET_HT_CAP_IE_CMDID,
+	.pdev_set_vht_cap_ie_cmdid = WMI_10X_PDEV_SET_VHT_CAP_IE_CMDID,
+	.pdev_set_dscp_tid_map_cmdid = WMI_10X_PDEV_SET_DSCP_TID_MAP_CMDID,
+	.pdev_set_quiet_mode_cmdid = WMI_10X_PDEV_SET_QUIET_MODE_CMDID,
+	.pdev_green_ap_ps_enable_cmdid = WMI_10X_PDEV_GREEN_AP_PS_ENABLE_CMDID,
+	.pdev_get_tpc_config_cmdid = WMI_10X_PDEV_GET_TPC_CONFIG_CMDID,
+	.pdev_set_base_macaddr_cmdid = WMI_10X_PDEV_SET_BASE_MACADDR_CMDID,
+	.vdev_create_cmdid = WMI_10X_VDEV_CREATE_CMDID,
+	.vdev_delete_cmdid = WMI_10X_VDEV_DELETE_CMDID,
+	.vdev_start_request_cmdid = WMI_10X_VDEV_START_REQUEST_CMDID,
+	.vdev_restart_request_cmdid = WMI_10X_VDEV_RESTART_REQUEST_CMDID,
+	.vdev_up_cmdid = WMI_10X_VDEV_UP_CMDID,
+	.vdev_stop_cmdid = WMI_10X_VDEV_STOP_CMDID,
+	.vdev_down_cmdid = WMI_10X_VDEV_DOWN_CMDID,
+	.vdev_set_param_cmdid = WMI_10X_VDEV_SET_PARAM_CMDID,
+	.vdev_install_key_cmdid = WMI_10X_VDEV_INSTALL_KEY_CMDID,
+	.peer_create_cmdid = WMI_10X_PEER_CREATE_CMDID,
+	.peer_delete_cmdid = WMI_10X_PEER_DELETE_CMDID,
+	.peer_flush_tids_cmdid = WMI_10X_PEER_FLUSH_TIDS_CMDID,
+	.peer_set_param_cmdid = WMI_10X_PEER_SET_PARAM_CMDID,
+	.peer_assoc_cmdid = WMI_10X_PEER_ASSOC_CMDID,
+	.peer_add_wds_entry_cmdid = WMI_10X_PEER_ADD_WDS_ENTRY_CMDID,
+	.peer_remove_wds_entry_cmdid = WMI_10X_PEER_REMOVE_WDS_ENTRY_CMDID,
+	.peer_mcast_group_cmdid = WMI_10X_PEER_MCAST_GROUP_CMDID,
+	.bcn_tx_cmdid = WMI_10X_BCN_TX_CMDID,
+	.pdev_send_bcn_cmdid = WMI_10X_PDEV_SEND_BCN_CMDID,
+	.bcn_tmpl_cmdid = WMI_CMD_UNDEFINED,
+	.bcn_filter_rx_cmdid = WMI_10X_BCN_FILTER_RX_CMDID,
+	.prb_req_filter_rx_cmdid = WMI_10X_PRB_REQ_FILTER_RX_CMDID,
+	.mgmt_tx_cmdid = WMI_10X_MGMT_TX_CMDID,
+	.prb_tmpl_cmdid = WMI_CMD_UNDEFINED,
+	.addba_clear_resp_cmdid = WMI_10X_ADDBA_CLEAR_RESP_CMDID,
+	.addba_send_cmdid = WMI_10X_ADDBA_SEND_CMDID,
+	.addba_status_cmdid = WMI_10X_ADDBA_STATUS_CMDID,
+	.delba_send_cmdid = WMI_10X_DELBA_SEND_CMDID,
+	.addba_set_resp_cmdid = WMI_10X_ADDBA_SET_RESP_CMDID,
+	.send_singleamsdu_cmdid = WMI_10X_SEND_SINGLEAMSDU_CMDID,
+	.sta_powersave_mode_cmdid = WMI_10X_STA_POWERSAVE_MODE_CMDID,
+	.sta_powersave_param_cmdid = WMI_10X_STA_POWERSAVE_PARAM_CMDID,
+	.sta_mimo_ps_mode_cmdid = WMI_10X_STA_MIMO_PS_MODE_CMDID,
+	.pdev_dfs_enable_cmdid = WMI_10X_PDEV_DFS_ENABLE_CMDID,
+	.pdev_dfs_disable_cmdid = WMI_10X_PDEV_DFS_DISABLE_CMDID,
+	.roam_scan_mode = WMI_10X_ROAM_SCAN_MODE,
+	.roam_scan_rssi_threshold = WMI_10X_ROAM_SCAN_RSSI_THRESHOLD,
+	.roam_scan_period = WMI_10X_ROAM_SCAN_PERIOD,
+	.roam_scan_rssi_change_threshold =
+				WMI_10X_ROAM_SCAN_RSSI_CHANGE_THRESHOLD,
+	.roam_ap_profile = WMI_10X_ROAM_AP_PROFILE,
+	.ofl_scan_add_ap_profile = WMI_10X_OFL_SCAN_ADD_AP_PROFILE,
+	.ofl_scan_remove_ap_profile = WMI_10X_OFL_SCAN_REMOVE_AP_PROFILE,
+	.ofl_scan_period = WMI_10X_OFL_SCAN_PERIOD,
+	.p2p_dev_set_device_info = WMI_10X_P2P_DEV_SET_DEVICE_INFO,
+	.p2p_dev_set_discoverability = WMI_10X_P2P_DEV_SET_DISCOVERABILITY,
+	.p2p_go_set_beacon_ie = WMI_10X_P2P_GO_SET_BEACON_IE,
+	.p2p_go_set_probe_resp_ie = WMI_10X_P2P_GO_SET_PROBE_RESP_IE,
+	.p2p_set_vendor_ie_data_cmdid = WMI_CMD_UNDEFINED,
+	.ap_ps_peer_param_cmdid = WMI_CMD_UNDEFINED,
+	.ap_ps_peer_uapsd_coex_cmdid = WMI_CMD_UNDEFINED,
+	.peer_rate_retry_sched_cmdid = WMI_10X_PEER_RATE_RETRY_SCHED_CMDID,
+	.wlan_profile_trigger_cmdid = WMI_10X_WLAN_PROFILE_TRIGGER_CMDID,
+	.wlan_profile_set_hist_intvl_cmdid =
+				WMI_10X_WLAN_PROFILE_SET_HIST_INTVL_CMDID,
+	.wlan_profile_get_profile_data_cmdid =
+				WMI_10X_WLAN_PROFILE_GET_PROFILE_DATA_CMDID,
+	.wlan_profile_enable_profile_id_cmdid =
+				WMI_10X_WLAN_PROFILE_ENABLE_PROFILE_ID_CMDID,
+	.wlan_profile_list_profile_id_cmdid =
+				WMI_10X_WLAN_PROFILE_LIST_PROFILE_ID_CMDID,
+	.pdev_suspend_cmdid = WMI_10X_PDEV_SUSPEND_CMDID,
+	.pdev_resume_cmdid = WMI_10X_PDEV_RESUME_CMDID,
+	.add_bcn_filter_cmdid = WMI_10X_ADD_BCN_FILTER_CMDID,
+	.rmv_bcn_filter_cmdid = WMI_10X_RMV_BCN_FILTER_CMDID,
+	.wow_add_wake_pattern_cmdid = WMI_10X_WOW_ADD_WAKE_PATTERN_CMDID,
+	.wow_del_wake_pattern_cmdid = WMI_10X_WOW_DEL_WAKE_PATTERN_CMDID,
+	.wow_enable_disable_wake_event_cmdid =
+				WMI_10X_WOW_ENABLE_DISABLE_WAKE_EVENT_CMDID,
+	.wow_enable_cmdid = WMI_10X_WOW_ENABLE_CMDID,
+	.wow_hostwakeup_from_sleep_cmdid =
+				WMI_10X_WOW_HOSTWAKEUP_FROM_SLEEP_CMDID,
+	.rtt_measreq_cmdid = WMI_10X_RTT_MEASREQ_CMDID,
+	.rtt_tsf_cmdid = WMI_10X_RTT_TSF_CMDID,
+	.vdev_spectral_scan_configure_cmdid =
+				WMI_10X_VDEV_SPECTRAL_SCAN_CONFIGURE_CMDID,
+	.vdev_spectral_scan_enable_cmdid =
+				WMI_10X_VDEV_SPECTRAL_SCAN_ENABLE_CMDID,
+	.request_stats_cmdid = WMI_10X_REQUEST_STATS_CMDID,
+	.set_arp_ns_offload_cmdid = WMI_CMD_UNDEFINED,
+	.network_list_offload_config_cmdid = WMI_CMD_UNDEFINED,
+	.gtk_offload_cmdid = WMI_CMD_UNDEFINED,
+	.csa_offload_enable_cmdid = WMI_CMD_UNDEFINED,
+	.csa_offload_chanswitch_cmdid = WMI_CMD_UNDEFINED,
+	.chatter_set_mode_cmdid = WMI_CMD_UNDEFINED,
+	.peer_tid_addba_cmdid = WMI_CMD_UNDEFINED,
+	.peer_tid_delba_cmdid = WMI_CMD_UNDEFINED,
+	.sta_dtim_ps_method_cmdid = WMI_CMD_UNDEFINED,
+	.sta_uapsd_auto_trig_cmdid = WMI_CMD_UNDEFINED,
+	.sta_keepalive_cmd = WMI_CMD_UNDEFINED,
+	.echo_cmdid = WMI_10X_ECHO_CMDID,
+	.pdev_utf_cmdid = WMI_10X_PDEV_UTF_CMDID,
+	.dbglog_cfg_cmdid = WMI_10X_DBGLOG_CFG_CMDID,
+	.pdev_qvit_cmdid = WMI_10X_PDEV_QVIT_CMDID,
+	.pdev_ftm_intg_cmdid = WMI_CMD_UNDEFINED,
+	.vdev_set_keepalive_cmdid = WMI_CMD_UNDEFINED,
+	.vdev_get_keepalive_cmdid = WMI_CMD_UNDEFINED,
+	.force_fw_hang_cmdid = WMI_CMD_UNDEFINED,
+	.gpio_config_cmdid = WMI_10X_GPIO_CONFIG_CMDID,
+	.gpio_output_cmdid = WMI_10X_GPIO_OUTPUT_CMDID,
+};
 
 int ath10k_wmi_wait_for_service_ready(struct ath10k *ar)
 {
@@ -1307,13 +1427,15 @@ static void ath10k_wmi_process_rx(struct ath10k *ar, struct sk_buff *skb)
 /* WMI Initialization functions */
 int ath10k_wmi_attach(struct ath10k *ar)
 {
-	int ret = 0;
+	int ret;
 
 	if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) {
 		ath10k_warn("Firmware 10.X is not yet supported\n");
+		ar->wmi.cmd = &wmi_10x_cmd_map;
 		ret = -ENOTSUPP;
 	} else {
 		ar->wmi.cmd = &wmi_cmd_map;
+		ret = 0;
 	}
 
 	init_completion(&ar->wmi.service_ready);
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index b8b446a9430f..d8414abb3483 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -359,7 +359,9 @@ enum wmi_cmd_group {
 #define WMI_CMD_GRP(grp_id) (((grp_id) << 12) | 0x1)
 #define WMI_EVT_GRP_START_ID(grp_id) (((grp_id) << 12) | 0x1)
 
-/* Command IDs and commande events. */
+#define WMI_CMD_UNDEFINED 0
+
+/* Command IDs and command events for MAIN FW. */
 enum wmi_cmd_id {
 	WMI_INIT_CMDID = 0x1,
 
@@ -600,6 +602,217 @@ enum wmi_event_id {
 	WMI_GPIO_INPUT_EVENTID = WMI_EVT_GRP_START_ID(WMI_GRP_GPIO),
 };
 
+/* Command IDs and command events for 10.X firmware */
+enum wmi_10x_cmd_id {
+	WMI_10X_START_CMDID = 0x9000,
+	WMI_10X_END_CMDID = 0x9FFF,
+
+	/* initialize the wlan sub system */
+	WMI_10X_INIT_CMDID,
+
+	/* Scan specific commands */
+
+	WMI_10X_START_SCAN_CMDID = WMI_10X_START_CMDID,
+	WMI_10X_STOP_SCAN_CMDID,
+	WMI_10X_SCAN_CHAN_LIST_CMDID,
+	WMI_10X_ECHO_CMDID,
+
+	/* PDEV(physical device) specific commands */
+	WMI_10X_PDEV_SET_REGDOMAIN_CMDID,
+	WMI_10X_PDEV_SET_CHANNEL_CMDID,
+	WMI_10X_PDEV_SET_PARAM_CMDID,
+	WMI_10X_PDEV_PKTLOG_ENABLE_CMDID,
+	WMI_10X_PDEV_PKTLOG_DISABLE_CMDID,
+	WMI_10X_PDEV_SET_WMM_PARAMS_CMDID,
+	WMI_10X_PDEV_SET_HT_CAP_IE_CMDID,
+	WMI_10X_PDEV_SET_VHT_CAP_IE_CMDID,
+	WMI_10X_PDEV_SET_BASE_MACADDR_CMDID,
+	WMI_10X_PDEV_SET_DSCP_TID_MAP_CMDID,
+	WMI_10X_PDEV_SET_QUIET_MODE_CMDID,
+	WMI_10X_PDEV_GREEN_AP_PS_ENABLE_CMDID,
+	WMI_10X_PDEV_GET_TPC_CONFIG_CMDID,
+
+	/* VDEV(virtual device) specific commands */
+	WMI_10X_VDEV_CREATE_CMDID,
+	WMI_10X_VDEV_DELETE_CMDID,
+	WMI_10X_VDEV_START_REQUEST_CMDID,
+	WMI_10X_VDEV_RESTART_REQUEST_CMDID,
+	WMI_10X_VDEV_UP_CMDID,
+	WMI_10X_VDEV_STOP_CMDID,
+	WMI_10X_VDEV_DOWN_CMDID,
+	WMI_10X_VDEV_STANDBY_RESPONSE_CMDID,
+	WMI_10X_VDEV_RESUME_RESPONSE_CMDID,
+	WMI_10X_VDEV_SET_PARAM_CMDID,
+	WMI_10X_VDEV_INSTALL_KEY_CMDID,
+
+	/* peer specific commands */
+	WMI_10X_PEER_CREATE_CMDID,
+	WMI_10X_PEER_DELETE_CMDID,
+	WMI_10X_PEER_FLUSH_TIDS_CMDID,
+	WMI_10X_PEER_SET_PARAM_CMDID,
+	WMI_10X_PEER_ASSOC_CMDID,
+	WMI_10X_PEER_ADD_WDS_ENTRY_CMDID,
+	WMI_10X_PEER_REMOVE_WDS_ENTRY_CMDID,
+	WMI_10X_PEER_MCAST_GROUP_CMDID,
+
+	/* beacon/management specific commands */
+
+	WMI_10X_BCN_TX_CMDID,
+	WMI_10X_BCN_PRB_TMPL_CMDID,
+	WMI_10X_BCN_FILTER_RX_CMDID,
+	WMI_10X_PRB_REQ_FILTER_RX_CMDID,
+	WMI_10X_MGMT_TX_CMDID,
+
+	/* commands to directly control ba negotiation directly from host. */
+	WMI_10X_ADDBA_CLEAR_RESP_CMDID,
+	WMI_10X_ADDBA_SEND_CMDID,
+	WMI_10X_ADDBA_STATUS_CMDID,
+	WMI_10X_DELBA_SEND_CMDID,
+	WMI_10X_ADDBA_SET_RESP_CMDID,
+	WMI_10X_SEND_SINGLEAMSDU_CMDID,
+
+	/* Station power save specific config */
+	WMI_10X_STA_POWERSAVE_MODE_CMDID,
+	WMI_10X_STA_POWERSAVE_PARAM_CMDID,
+	WMI_10X_STA_MIMO_PS_MODE_CMDID,
+
+	/* set debug log config */
+	WMI_10X_DBGLOG_CFG_CMDID,
+
+	/* DFS-specific commands */
+	WMI_10X_PDEV_DFS_ENABLE_CMDID,
+	WMI_10X_PDEV_DFS_DISABLE_CMDID,
+
+	/* QVIT specific command id */
+	WMI_10X_PDEV_QVIT_CMDID,
+
+	/* Offload Scan and Roaming related  commands */
+	WMI_10X_ROAM_SCAN_MODE,
+	WMI_10X_ROAM_SCAN_RSSI_THRESHOLD,
+	WMI_10X_ROAM_SCAN_PERIOD,
+	WMI_10X_ROAM_SCAN_RSSI_CHANGE_THRESHOLD,
+	WMI_10X_ROAM_AP_PROFILE,
+	WMI_10X_OFL_SCAN_ADD_AP_PROFILE,
+	WMI_10X_OFL_SCAN_REMOVE_AP_PROFILE,
+	WMI_10X_OFL_SCAN_PERIOD,
+
+	/* P2P specific commands */
+	WMI_10X_P2P_DEV_SET_DEVICE_INFO,
+	WMI_10X_P2P_DEV_SET_DISCOVERABILITY,
+	WMI_10X_P2P_GO_SET_BEACON_IE,
+	WMI_10X_P2P_GO_SET_PROBE_RESP_IE,
+
+	/* AP power save specific config */
+	WMI_10X_AP_PS_PEER_PARAM_CMDID,
+	WMI_10X_AP_PS_PEER_UAPSD_COEX_CMDID,
+
+	/* Rate-control specific commands */
+	WMI_10X_PEER_RATE_RETRY_SCHED_CMDID,
+
+	/* WLAN Profiling commands. */
+	WMI_10X_WLAN_PROFILE_TRIGGER_CMDID,
+	WMI_10X_WLAN_PROFILE_SET_HIST_INTVL_CMDID,
+	WMI_10X_WLAN_PROFILE_GET_PROFILE_DATA_CMDID,
+	WMI_10X_WLAN_PROFILE_ENABLE_PROFILE_ID_CMDID,
+	WMI_10X_WLAN_PROFILE_LIST_PROFILE_ID_CMDID,
+
+	/* Suspend resume command Ids */
+	WMI_10X_PDEV_SUSPEND_CMDID,
+	WMI_10X_PDEV_RESUME_CMDID,
+
+	/* Beacon filter commands */
+	WMI_10X_ADD_BCN_FILTER_CMDID,
+	WMI_10X_RMV_BCN_FILTER_CMDID,
+
+	/* WOW Specific WMI commands*/
+	WMI_10X_WOW_ADD_WAKE_PATTERN_CMDID,
+	WMI_10X_WOW_DEL_WAKE_PATTERN_CMDID,
+	WMI_10X_WOW_ENABLE_DISABLE_WAKE_EVENT_CMDID,
+	WMI_10X_WOW_ENABLE_CMDID,
+	WMI_10X_WOW_HOSTWAKEUP_FROM_SLEEP_CMDID,
+
+	/* RTT measurement related cmd */
+	WMI_10X_RTT_MEASREQ_CMDID,
+	WMI_10X_RTT_TSF_CMDID,
+
+	/* transmit beacon by value */
+	WMI_10X_PDEV_SEND_BCN_CMDID,
+
+	/* F/W stats */
+	WMI_10X_VDEV_SPECTRAL_SCAN_CONFIGURE_CMDID,
+	WMI_10X_VDEV_SPECTRAL_SCAN_ENABLE_CMDID,
+	WMI_10X_REQUEST_STATS_CMDID,
+
+	/* GPIO Configuration */
+	WMI_10X_GPIO_CONFIG_CMDID,
+	WMI_10X_GPIO_OUTPUT_CMDID,
+
+	WMI_10X_PDEV_UTF_CMDID = WMI_10X_END_CMDID - 1,
+};
+
+enum wmi_10x_event_id {
+	WMI_10X_SERVICE_READY_EVENTID = 0x8000,
+	WMI_10X_READY_EVENTID,
+	WMI_10X_START_EVENTID = 0x9000,
+	WMI_10X_END_EVENTID = 0x9FFF,
+
+	/* Scan specific events */
+	WMI_10X_SCAN_EVENTID = WMI_10X_START_EVENTID,
+	WMI_10X_ECHO_EVENTID,
+	WMI_10X_DEBUG_MESG_EVENTID,
+	WMI_10X_UPDATE_STATS_EVENTID,
+
+	/* Instantaneous RSSI event */
+	WMI_10X_INST_RSSI_STATS_EVENTID,
+
+	/* VDEV specific events */
+	WMI_10X_VDEV_START_RESP_EVENTID,
+	WMI_10X_VDEV_STANDBY_REQ_EVENTID,
+	WMI_10X_VDEV_RESUME_REQ_EVENTID,
+	WMI_10X_VDEV_STOPPED_EVENTID,
+
+	/* peer  specific events */
+	WMI_10X_PEER_STA_KICKOUT_EVENTID,
+
+	/* beacon/mgmt specific events */
+	WMI_10X_HOST_SWBA_EVENTID,
+	WMI_10X_TBTTOFFSET_UPDATE_EVENTID,
+	WMI_10X_MGMT_RX_EVENTID,
+
+	/* Channel stats event */
+	WMI_10X_CHAN_INFO_EVENTID,
+
+	/* PHY Error specific WMI event */
+	WMI_10X_PHYERR_EVENTID,
+
+	/* Roam event to trigger roaming on host */
+	WMI_10X_ROAM_EVENTID,
+
+	/* matching AP found from list of profiles */
+	WMI_10X_PROFILE_MATCH,
+
+	/* debug print message used for tracing FW code while debugging */
+	WMI_10X_DEBUG_PRINT_EVENTID,
+	/* VI spoecific event */
+	WMI_10X_PDEV_QVIT_EVENTID,
+	/* FW code profile data in response to profile request */
+	WMI_10X_WLAN_PROFILE_DATA_EVENTID,
+
+	/*RTT related event ID*/
+	WMI_10X_RTT_MEASUREMENT_REPORT_EVENTID,
+	WMI_10X_TSF_MEASUREMENT_REPORT_EVENTID,
+	WMI_10X_RTT_ERROR_REPORT_EVENTID,
+
+	WMI_10X_WOW_WAKEUP_HOST_EVENTID,
+	WMI_10X_DCS_INTERFERENCE_EVENTID,
+
+	/* TPC config for the current operating channel */
+	WMI_10X_PDEV_TPC_CONFIG_EVENTID,
+
+	WMI_10X_GPIO_INPUT_EVENTID,
+	WMI_10X_PDEV_UTF_EVENTID = WMI_10X_END_EVENTID-1,
+};
+
 enum wmi_phy_mode {
 	MODE_11A        = 0,   /* 11a Mode */
 	MODE_11G        = 1,   /* 11b/g Mode */
-- 
cgit 


From 553215592f148ec94151a11d4f13ebf8fb2ca516 Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Thu, 26 Sep 2013 17:47:07 +0200
Subject: ath10k: warn if give WMI command is not supported

This will show and make it easier to track the API
differences in the new AP firmware.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/wmi.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index cfb208244999..8386050b1010 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -390,6 +390,12 @@ static int ath10k_wmi_cmd_send(struct ath10k *ar, struct sk_buff *skb,
 {
 	int ret = -EINVAL;
 
+	if (cmd_id == WMI_CMD_UNDEFINED) {
+		ath10k_warn("wmi command %d is not supported by firmware\n",
+			    cmd_id);
+		return ret;
+	}
+
 	wait_event_timeout(ar->wmi.tx_credits_wq, ({
 		/* try to send pending beacons first. they take priority */
 		ath10k_wmi_tx_beacons_nowait(ar);
-- 
cgit 


From 8a6618b00f280a35cef36f6156cb7f80b35553c3 Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Thu, 26 Sep 2013 17:47:08 +0200
Subject: ath10k: implement WMI events handling frame for both firmwares

We still use the same function handlers for both main and 10.X
paths. Next step is to track down and make the split needed.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/wmi.c | 131 +++++++++++++++++++++++++++++++++-
 1 file changed, 130 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 8386050b1010..ef80291737b4 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -1212,6 +1212,24 @@ static void ath10k_wmi_event_vdev_install_key_complete(struct ath10k *ar,
 	ath10k_dbg(ATH10K_DBG_WMI, "WMI_VDEV_INSTALL_KEY_COMPLETE_EVENTID\n");
 }
 
+static void ath10k_wmi_event_inst_rssi_stats(struct ath10k *ar,
+					     struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_INST_RSSI_STATS_EVENTID\n");
+}
+
+static void ath10k_wmi_event_vdev_standby_req(struct ath10k *ar,
+					      struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_VDEV_STANDBY_REQ_EVENTID\n");
+}
+
+static void ath10k_wmi_event_vdev_resume_req(struct ath10k *ar,
+					     struct sk_buff *skb)
+{
+	ath10k_dbg(ATH10K_DBG_WMI, "WMI_VDEV_RESUME_REQ_EVENTID\n");
+}
+
 static void ath10k_wmi_service_ready_event_rx(struct ath10k *ar,
 					      struct sk_buff *skb)
 {
@@ -1422,10 +1440,121 @@ static void ath10k_wmi_main_process_rx(struct ath10k *ar, struct sk_buff *skb)
 	dev_kfree_skb(skb);
 }
 
+static void ath10k_wmi_10x_process_rx(struct ath10k *ar, struct sk_buff *skb)
+{
+	struct wmi_cmd_hdr *cmd_hdr;
+	enum wmi_10x_event_id id;
+	u16 len;
+
+	cmd_hdr = (struct wmi_cmd_hdr *)skb->data;
+	id = MS(__le32_to_cpu(cmd_hdr->cmd_id), WMI_CMD_HDR_CMD_ID);
+
+	if (skb_pull(skb, sizeof(struct wmi_cmd_hdr)) == NULL)
+		return;
+
+	len = skb->len;
+
+	trace_ath10k_wmi_event(id, skb->data, skb->len);
+
+	switch (id) {
+	case WMI_10X_MGMT_RX_EVENTID:
+		ath10k_wmi_event_mgmt_rx(ar, skb);
+		/* mgmt_rx() owns the skb now! */
+		return;
+	case WMI_10X_SCAN_EVENTID:
+		ath10k_wmi_event_scan(ar, skb);
+		break;
+	case WMI_10X_CHAN_INFO_EVENTID:
+		ath10k_wmi_event_chan_info(ar, skb);
+		break;
+	case WMI_10X_ECHO_EVENTID:
+		ath10k_wmi_event_echo(ar, skb);
+		break;
+	case WMI_10X_DEBUG_MESG_EVENTID:
+		ath10k_wmi_event_debug_mesg(ar, skb);
+		break;
+	case WMI_10X_UPDATE_STATS_EVENTID:
+		ath10k_wmi_event_update_stats(ar, skb);
+		break;
+	case WMI_10X_VDEV_START_RESP_EVENTID:
+		ath10k_wmi_event_vdev_start_resp(ar, skb);
+		break;
+	case WMI_10X_VDEV_STOPPED_EVENTID:
+		ath10k_wmi_event_vdev_stopped(ar, skb);
+		break;
+	case WMI_10X_PEER_STA_KICKOUT_EVENTID:
+		ath10k_wmi_event_peer_sta_kickout(ar, skb);
+		break;
+	case WMI_10X_HOST_SWBA_EVENTID:
+		ath10k_wmi_event_host_swba(ar, skb);
+		break;
+	case WMI_10X_TBTTOFFSET_UPDATE_EVENTID:
+		ath10k_wmi_event_tbttoffset_update(ar, skb);
+		break;
+	case WMI_10X_PHYERR_EVENTID:
+		ath10k_wmi_event_phyerr(ar, skb);
+		break;
+	case WMI_10X_ROAM_EVENTID:
+		ath10k_wmi_event_roam(ar, skb);
+		break;
+	case WMI_10X_PROFILE_MATCH:
+		ath10k_wmi_event_profile_match(ar, skb);
+		break;
+	case WMI_10X_DEBUG_PRINT_EVENTID:
+		ath10k_wmi_event_debug_print(ar, skb);
+		break;
+	case WMI_10X_PDEV_QVIT_EVENTID:
+		ath10k_wmi_event_pdev_qvit(ar, skb);
+		break;
+	case WMI_10X_WLAN_PROFILE_DATA_EVENTID:
+		ath10k_wmi_event_wlan_profile_data(ar, skb);
+		break;
+	case WMI_10X_RTT_MEASUREMENT_REPORT_EVENTID:
+		ath10k_wmi_event_rtt_measurement_report(ar, skb);
+		break;
+	case WMI_10X_TSF_MEASUREMENT_REPORT_EVENTID:
+		ath10k_wmi_event_tsf_measurement_report(ar, skb);
+		break;
+	case WMI_10X_RTT_ERROR_REPORT_EVENTID:
+		ath10k_wmi_event_rtt_error_report(ar, skb);
+		break;
+	case WMI_10X_WOW_WAKEUP_HOST_EVENTID:
+		ath10k_wmi_event_wow_wakeup_host(ar, skb);
+		break;
+	case WMI_10X_DCS_INTERFERENCE_EVENTID:
+		ath10k_wmi_event_dcs_interference(ar, skb);
+		break;
+	case WMI_10X_PDEV_TPC_CONFIG_EVENTID:
+		ath10k_wmi_event_pdev_tpc_config(ar, skb);
+		break;
+	case WMI_10X_INST_RSSI_STATS_EVENTID:
+		ath10k_wmi_event_inst_rssi_stats(ar, skb);
+		break;
+	case WMI_10X_VDEV_STANDBY_REQ_EVENTID:
+		ath10k_wmi_event_vdev_standby_req(ar, skb);
+		break;
+	case WMI_10X_VDEV_RESUME_REQ_EVENTID:
+		ath10k_wmi_event_vdev_resume_req(ar, skb);
+		break;
+	case WMI_10X_SERVICE_READY_EVENTID:
+		ath10k_wmi_service_ready_event_rx(ar, skb);
+		break;
+	case WMI_10X_READY_EVENTID:
+		ath10k_wmi_ready_event_rx(ar, skb);
+		break;
+	default:
+		ath10k_warn("Unknown eventid: %d\n", id);
+		break;
+	}
+
+	dev_kfree_skb(skb);
+}
+
+
 static void ath10k_wmi_process_rx(struct ath10k *ar, struct sk_buff *skb)
 {
 	if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features))
-		ath10k_warn("Firmware 10.X is not yet supported\n");
+		ath10k_wmi_10x_process_rx(ar, skb);
 	else
 		ath10k_wmi_main_process_rx(ar, skb);
 }
-- 
cgit 


From 6f97d256b7c0c624f7cd5881beeabb5c7a3678b8 Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Thu, 26 Sep 2013 17:47:09 +0200
Subject: ath10k: split ath10k_wmi_service_ready_event_rx

Since the both firmwares we are going to support,
have significantly different APIs (WMI and shared
structures), it's easier to actually split the whole
event handling functions, instead cutting them inside.

The fork starts now on ath10k_wmi_process_rx().

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/wmi.c | 65 ++++++++++++++++++++++++++++++++++-
 drivers/net/wireless/ath/ath10k/wmi.h | 40 +++++++++++++++++++++
 2 files changed, 104 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index ef80291737b4..ed79d325b610 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -1301,6 +1301,69 @@ static void ath10k_wmi_service_ready_event_rx(struct ath10k *ar,
 	complete(&ar->wmi.service_ready);
 }
 
+static void ath10k_wmi_10x_service_ready_event_rx(struct ath10k *ar,
+						  struct sk_buff *skb)
+{
+	struct wmi_service_ready_event_10x *ev = (void *)skb->data;
+
+	if (skb->len < sizeof(*ev)) {
+		ath10k_warn("Service ready event was %d B but expected %zu B. Wrong firmware version?\n",
+			    skb->len, sizeof(*ev));
+		return;
+	}
+
+	ar->hw_min_tx_power = __le32_to_cpu(ev->hw_min_tx_power);
+	ar->hw_max_tx_power = __le32_to_cpu(ev->hw_max_tx_power);
+	ar->ht_cap_info = __le32_to_cpu(ev->ht_cap_info);
+	ar->vht_cap_info = __le32_to_cpu(ev->vht_cap_info);
+	ar->fw_version_major =
+		(__le32_to_cpu(ev->sw_version) & 0xff000000) >> 24;
+	ar->fw_version_minor = (__le32_to_cpu(ev->sw_version) & 0x00ffffff);
+	ar->phy_capability = __le32_to_cpu(ev->phy_capability);
+	ar->num_rf_chains = __le32_to_cpu(ev->num_rf_chains);
+
+	if (ar->num_rf_chains > WMI_MAX_SPATIAL_STREAM) {
+		ath10k_warn("hardware advertises support for more spatial streams than it should (%d > %d)\n",
+			    ar->num_rf_chains, WMI_MAX_SPATIAL_STREAM);
+		ar->num_rf_chains = WMI_MAX_SPATIAL_STREAM;
+	}
+
+	ar->ath_common.regulatory.current_rd =
+		__le32_to_cpu(ev->hal_reg_capabilities.eeprom_rd);
+
+	ath10k_debug_read_service_map(ar, ev->wmi_service_bitmap,
+				      sizeof(ev->wmi_service_bitmap));
+
+	if (strlen(ar->hw->wiphy->fw_version) == 0) {
+		snprintf(ar->hw->wiphy->fw_version,
+			 sizeof(ar->hw->wiphy->fw_version),
+			 "%u.%u",
+			 ar->fw_version_major,
+			 ar->fw_version_minor);
+	}
+
+	/* FIXME: it probably should be better to support this.
+	   TODO: Next patch introduce memory chunks. It's a must for 10.x FW */
+	if (__le32_to_cpu(ev->num_mem_reqs) > 0) {
+		ath10k_warn("target requested %d memory chunks; ignoring\n",
+			    __le32_to_cpu(ev->num_mem_reqs));
+	}
+
+	ath10k_dbg(ATH10K_DBG_WMI,
+		   "wmi event service ready sw_ver 0x%08x abi_ver %u phy_cap 0x%08x ht_cap 0x%08x vht_cap 0x%08x vht_supp_msc 0x%08x sys_cap_info 0x%08x mem_reqs %u num_rf_chains %u\n",
+		   __le32_to_cpu(ev->sw_version),
+		   __le32_to_cpu(ev->abi_version),
+		   __le32_to_cpu(ev->phy_capability),
+		   __le32_to_cpu(ev->ht_cap_info),
+		   __le32_to_cpu(ev->vht_cap_info),
+		   __le32_to_cpu(ev->vht_supp_mcs),
+		   __le32_to_cpu(ev->sys_cap_info),
+		   __le32_to_cpu(ev->num_mem_reqs),
+		   __le32_to_cpu(ev->num_rf_chains));
+
+	complete(&ar->wmi.service_ready);
+}
+
 static int ath10k_wmi_ready_event_rx(struct ath10k *ar, struct sk_buff *skb)
 {
 	struct wmi_ready_event *ev = (struct wmi_ready_event *)skb->data;
@@ -1537,7 +1600,7 @@ static void ath10k_wmi_10x_process_rx(struct ath10k *ar, struct sk_buff *skb)
 		ath10k_wmi_event_vdev_resume_req(ar, skb);
 		break;
 	case WMI_10X_SERVICE_READY_EVENTID:
-		ath10k_wmi_service_ready_event_rx(ar, skb);
+		ath10k_wmi_10x_service_ready_event_rx(ar, skb);
 		break;
 	case WMI_10X_READY_EVENTID:
 		ath10k_wmi_ready_event_rx(ar, skb);
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index d8414abb3483..a0cfdfd87faf 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -1130,6 +1130,46 @@ struct wmi_service_ready_event {
 	struct wlan_host_mem_req mem_reqs[1];
 } __packed;
 
+/* This is the definition from 10.X firmware branch */
+struct wmi_service_ready_event_10x {
+	__le32 sw_version;
+	__le32 abi_version;
+
+	/* WMI_PHY_CAPABILITY */
+	__le32 phy_capability;
+
+	/* Maximum number of frag table entries that SW will populate less 1 */
+	__le32 max_frag_entry;
+	__le32 wmi_service_bitmap[WMI_SERVICE_BM_SIZE];
+	__le32 num_rf_chains;
+
+	/*
+	 * The following field is only valid for service type
+	 * WMI_SERVICE_11AC
+	 */
+	__le32 ht_cap_info; /* WMI HT Capability */
+	__le32 vht_cap_info; /* VHT capability info field of 802.11ac */
+	__le32 vht_supp_mcs; /* VHT Supported MCS Set field Rx/Tx same */
+	__le32 hw_min_tx_power;
+	__le32 hw_max_tx_power;
+
+	struct hal_reg_capabilities hal_reg_capabilities;
+
+	__le32 sys_cap_info;
+	__le32 min_pkt_size_enable; /* Enterprise mode short pkt enable */
+
+	/*
+	 * request to host to allocate a chuck of memory and pss it down to FW
+	 * via WM_INIT. FW uses this as FW extesnsion memory for saving its
+	 * data structures. Only valid for low latency interfaces like PCIE
+	 * where FW can access this memory directly (or) by DMA.
+	 */
+	__le32 num_mem_reqs;
+
+	struct wlan_host_mem_req mem_reqs[1];
+} __packed;
+
+
 #define WMI_SERVICE_READY_TIMEOUT_HZ (5*HZ)
 #define WMI_UNIFIED_READY_TIMEOUT_HZ (5*HZ)
 
-- 
cgit 


From 08ba7b6b6f4bd6a912d0b6825f4e2d4e7fb4ddac Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Thu, 26 Sep 2013 17:47:10 +0200
Subject: ath10k: drop the fw versioning sanity check

It was corrupted and leading to compilation warning
core.c: In function 'ath10k_check_fw_version':
core.c:79: warning: comparison is always true due to limited range of data type

Since we are going to support new FW track in the driver,
the sanity check for fw version number would be an overkill
then. This is just for information purposes anyway.

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.c | 25 -------------------------
 drivers/net/wireless/ath/ath10k/hw.h   |  6 ------
 2 files changed, 31 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 76906d5a082e..31860a60c538 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -59,27 +59,6 @@ static void ath10k_send_suspend_complete(struct ath10k *ar)
 	wake_up(&ar->event_queue);
 }
 
-static int ath10k_check_fw_version(struct ath10k *ar)
-{
-	char version[32];
-
-	if (ar->fw_version_major >= SUPPORTED_FW_MAJOR &&
-	    ar->fw_version_minor >= SUPPORTED_FW_MINOR &&
-	    ar->fw_version_release >= SUPPORTED_FW_RELEASE &&
-	    ar->fw_version_build >= SUPPORTED_FW_BUILD)
-		return 0;
-
-	snprintf(version, sizeof(version), "%u.%u.%u.%u",
-		 SUPPORTED_FW_MAJOR, SUPPORTED_FW_MINOR,
-		 SUPPORTED_FW_RELEASE, SUPPORTED_FW_BUILD);
-
-	ath10k_warn("WARNING: Firmware version %s is not officially supported.\n",
-		    ar->hw->wiphy->fw_version);
-	ath10k_warn("Please upgrade to version %s (or newer)\n", version);
-
-	return 0;
-}
-
 static int ath10k_init_connect_htc(struct ath10k *ar)
 {
 	int status;
@@ -616,10 +595,6 @@ int ath10k_core_start(struct ath10k *ar)
 
 	ath10k_info("firmware %s booted\n", ar->hw->wiphy->fw_version);
 
-	status = ath10k_check_fw_version(ar);
-	if (status)
-		goto err_disconnect_htc;
-
 	status = ath10k_wmi_cmd_init(ar);
 	if (status) {
 		ath10k_err("could not send WMI init command (%d)\n", status);
diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
index 8c1be7685922..66e721a1afde 100644
--- a/drivers/net/wireless/ath/ath10k/hw.h
+++ b/drivers/net/wireless/ath/ath10k/hw.h
@@ -20,12 +20,6 @@
 
 #include "targaddrs.h"
 
-/* Supported FW version */
-#define SUPPORTED_FW_MAJOR	1
-#define SUPPORTED_FW_MINOR	0
-#define SUPPORTED_FW_RELEASE	0
-#define SUPPORTED_FW_BUILD	636
-
 /* QCA988X 1.0 definitions (unsupported) */
 #define QCA988X_HW_1_0_CHIP_ID_REV	0x0
 
-- 
cgit 


From b3effe61a1a3b8f20fa4b4d30c4390a6b81a6fc2 Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Thu, 26 Sep 2013 17:47:11 +0200
Subject: ath10k: implement host memory chunks

10.X firmware can request a memory pool from host to offload
it's own resources. This is a feature designed especially
for AP mode where the target has to deal with large number
of peers.

So we allocate and map a consistent DMA memory which FW can
use to store e.g. peer rate contol maps.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.h |  12 ++++
 drivers/net/wireless/ath/ath10k/wmi.c  | 126 ++++++++++++++++++++++++++++++---
 drivers/net/wireless/ath/ath10k/wmi.h  |   3 +
 3 files changed, 133 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index acfee7c51b9e..e2a2658cf841 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -102,12 +102,24 @@ struct ath10k_bmi {
 	bool done_sent;
 };
 
+#define ATH10K_MAX_MEM_REQS 16
+
+struct ath10k_mem_chunk {
+	void *vaddr;
+	dma_addr_t paddr;
+	u32 len;
+	u32 req_id;
+};
+
 struct ath10k_wmi {
 	enum ath10k_htc_ep_id eid;
 	struct completion service_ready;
 	struct completion unified_ready;
 	wait_queue_head_t tx_credits_wq;
 	struct wmi_cmd_map *cmd;
+
+	u32 num_mem_chunks;
+	struct ath10k_mem_chunk mem_chunks[ATH10K_MAX_MEM_REQS];
 };
 
 struct ath10k_peer_stat {
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index ed79d325b610..97ba23e78abf 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -1230,6 +1230,37 @@ static void ath10k_wmi_event_vdev_resume_req(struct ath10k *ar,
 	ath10k_dbg(ATH10K_DBG_WMI, "WMI_VDEV_RESUME_REQ_EVENTID\n");
 }
 
+static int ath10k_wmi_alloc_host_mem(struct ath10k *ar, u32 req_id,
+				      u32 num_units, u32 unit_len)
+{
+	dma_addr_t paddr;
+	u32 pool_size;
+	int idx = ar->wmi.num_mem_chunks;
+
+	pool_size = num_units * round_up(unit_len, 4);
+
+	if (!pool_size)
+		return -EINVAL;
+
+	ar->wmi.mem_chunks[idx].vaddr = dma_alloc_coherent(ar->dev,
+							   pool_size,
+							   &paddr,
+							   GFP_ATOMIC);
+	if (!ar->wmi.mem_chunks[idx].vaddr) {
+		ath10k_warn("failed to allocate memory chunk\n");
+		return -ENOMEM;
+	}
+
+	memset(ar->wmi.mem_chunks[idx].vaddr, 0, pool_size);
+
+	ar->wmi.mem_chunks[idx].paddr = paddr;
+	ar->wmi.mem_chunks[idx].len = pool_size;
+	ar->wmi.mem_chunks[idx].req_id = req_id;
+	ar->wmi.num_mem_chunks++;
+
+	return 0;
+}
+
 static void ath10k_wmi_service_ready_event_rx(struct ath10k *ar,
 					      struct sk_buff *skb)
 {
@@ -1304,6 +1335,8 @@ static void ath10k_wmi_service_ready_event_rx(struct ath10k *ar,
 static void ath10k_wmi_10x_service_ready_event_rx(struct ath10k *ar,
 						  struct sk_buff *skb)
 {
+	u32 num_units, req_id, unit_size, num_mem_reqs, num_unit_info, i;
+	int ret;
 	struct wmi_service_ready_event_10x *ev = (void *)skb->data;
 
 	if (skb->len < sizeof(*ev)) {
@@ -1342,13 +1375,50 @@ static void ath10k_wmi_10x_service_ready_event_rx(struct ath10k *ar,
 			 ar->fw_version_minor);
 	}
 
-	/* FIXME: it probably should be better to support this.
-	   TODO: Next patch introduce memory chunks. It's a must for 10.x FW */
-	if (__le32_to_cpu(ev->num_mem_reqs) > 0) {
-		ath10k_warn("target requested %d memory chunks; ignoring\n",
-			    __le32_to_cpu(ev->num_mem_reqs));
+	num_mem_reqs = __le32_to_cpu(ev->num_mem_reqs);
+
+	if (num_mem_reqs > ATH10K_MAX_MEM_REQS) {
+		ath10k_warn("requested memory chunks number (%d) exceeds the limit\n",
+			    num_mem_reqs);
+		return;
 	}
 
+	if (!num_mem_reqs)
+		goto exit;
+
+	ath10k_dbg(ATH10K_DBG_WMI, "firmware has requested %d memory chunks\n",
+		   num_mem_reqs);
+
+	for (i = 0; i < num_mem_reqs; ++i) {
+		req_id = __le32_to_cpu(ev->mem_reqs[i].req_id);
+		num_units = __le32_to_cpu(ev->mem_reqs[i].num_units);
+		unit_size = __le32_to_cpu(ev->mem_reqs[i].unit_size);
+		num_unit_info = __le32_to_cpu(ev->mem_reqs[i].num_unit_info);
+
+		if (num_unit_info & NUM_UNITS_IS_NUM_PEERS)
+			/* number of units to allocate is number of
+			 * peers, 1 extra for self peer on target */
+			/* this needs to be tied, host and target
+			 * can get out of sync */
+			num_units = TARGET_NUM_PEERS + 1;
+		else if (num_unit_info & NUM_UNITS_IS_NUM_VDEVS)
+			num_units = TARGET_NUM_VDEVS + 1;
+
+		ath10k_dbg(ATH10K_DBG_WMI,
+			   "wmi mem_req_id %d num_units %d num_unit_info %d unit size %d actual units %d\n",
+			   req_id,
+			   __le32_to_cpu(ev->mem_reqs[i].num_units),
+			   num_unit_info,
+			   unit_size,
+			   num_units);
+
+		ret = ath10k_wmi_alloc_host_mem(ar, req_id, num_units,
+						unit_size);
+		if (ret)
+			return;
+	}
+
+exit:
 	ath10k_dbg(ATH10K_DBG_WMI,
 		   "wmi event service ready sw_ver 0x%08x abi_ver %u phy_cap 0x%08x ht_cap 0x%08x vht_cap 0x%08x vht_supp_msc 0x%08x sys_cap_info 0x%08x mem_reqs %u num_rf_chains %u\n",
 		   __le32_to_cpu(ev->sw_version),
@@ -1645,6 +1715,17 @@ int ath10k_wmi_attach(struct ath10k *ar)
 
 void ath10k_wmi_detach(struct ath10k *ar)
 {
+	int i;
+
+	/* free the host memory chunks requested by firmware */
+	for (i = 0; i < ar->wmi.num_mem_chunks; i++) {
+		dma_free_coherent(ar->dev,
+				  ar->wmi.mem_chunks[i].len,
+				  ar->wmi.mem_chunks[i].vaddr,
+				  ar->wmi.mem_chunks[i].paddr);
+	}
+
+	ar->wmi.num_mem_chunks = 0;
 }
 
 int ath10k_wmi_connect_htc_service(struct ath10k *ar)
@@ -1781,7 +1862,8 @@ int ath10k_wmi_cmd_init(struct ath10k *ar)
 	struct wmi_init_cmd *cmd;
 	struct sk_buff *buf;
 	struct wmi_resource_config config = {};
-	u32 val;
+	u32 len, val;
+	int i;
 
 	config.num_vdevs = __cpu_to_le32(TARGET_NUM_VDEVS);
 	config.num_peers = __cpu_to_le32(TARGET_NUM_PEERS + TARGET_NUM_VDEVS);
@@ -1834,12 +1916,40 @@ int ath10k_wmi_cmd_init(struct ath10k *ar)
 	config.num_msdu_desc = __cpu_to_le32(TARGET_NUM_MSDU_DESC);
 	config.max_frag_entries = __cpu_to_le32(TARGET_MAX_FRAG_ENTRIES);
 
-	buf = ath10k_wmi_alloc_skb(sizeof(*cmd));
+	len = sizeof(*cmd) +
+	      (sizeof(struct host_memory_chunk) * ar->wmi.num_mem_chunks);
+
+	buf = ath10k_wmi_alloc_skb(len);
 	if (!buf)
 		return -ENOMEM;
 
 	cmd = (struct wmi_init_cmd *)buf->data;
-	cmd->num_host_mem_chunks = 0;
+
+	if (ar->wmi.num_mem_chunks == 0) {
+		cmd->num_host_mem_chunks = 0;
+		goto out;
+	}
+
+	ath10k_dbg(ATH10K_DBG_WMI, "wmi sending %d memory chunks info.\n",
+		   __cpu_to_le32(ar->wmi.num_mem_chunks));
+
+	cmd->num_host_mem_chunks = __cpu_to_le32(ar->wmi.num_mem_chunks);
+
+	for (i = 0; i < ar->wmi.num_mem_chunks; i++) {
+		cmd->host_mem_chunks[i].ptr =
+			__cpu_to_le32(ar->wmi.mem_chunks[i].paddr);
+		cmd->host_mem_chunks[i].size =
+			__cpu_to_le32(ar->wmi.mem_chunks[i].len);
+		cmd->host_mem_chunks[i].req_id =
+			__cpu_to_le32(ar->wmi.mem_chunks[i].req_id);
+
+		ath10k_dbg(ATH10K_DBG_WMI,
+			   "wmi chunk %d len %d requested, addr 0x%x\n",
+			   i,
+			   cmd->host_mem_chunks[i].size,
+			   cmd->host_mem_chunks[i].ptr);
+	}
+out:
 	memcpy(&cmd->resource_config, &config, sizeof(config));
 
 	ath10k_dbg(ATH10K_DBG_WMI, "wmi init\n");
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index a0cfdfd87faf..56339d2e338a 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -1377,6 +1377,9 @@ struct wmi_resource_config {
 	__le32 max_frag_entries;
 } __packed;
 
+#define NUM_UNITS_IS_NUM_VDEVS   0x1
+#define NUM_UNITS_IS_NUM_PEERS   0x2
+
 /* strucutre describing host memory chunk. */
 struct host_memory_chunk {
 	/* id of the request that is passed up in service ready */
-- 
cgit 


From 5e00d31a0fb74c36f3b174ff0d4914cf09016e6f Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Thu, 26 Sep 2013 17:47:12 +0200
Subject: ath10k: bring back the WMI path for mgmt frames

This is still the only way to submit mgmt frames in case
of 10.X firmware.

This patch introduces wmi_mgmt_tx queue, because of the
fact WMI command can block. This is a problem for
ath10k_tx_htt(), since it's called from atomic context.
The skb queue and worker are introduced to move the mgmt
frame handling out of .tx callback context and not block.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.c   |  3 ++
 drivers/net/wireless/ath/ath10k/core.h   | 10 ++++-
 drivers/net/wireless/ath/ath10k/htt_tx.c |  4 +-
 drivers/net/wireless/ath/ath10k/mac.c    | 70 +++++++++++++++++++++++++++-----
 drivers/net/wireless/ath/ath10k/mac.h    |  2 +
 drivers/net/wireless/ath/ath10k/wmi.c    | 51 +++++++++++++++++++++++
 drivers/net/wireless/ath/ath10k/wmi.h    |  1 +
 7 files changed, 128 insertions(+), 13 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 31860a60c538..bd74dacad1ed 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -520,6 +520,9 @@ struct ath10k *ath10k_core_create(void *hif_priv, struct device *dev,
 	INIT_WORK(&ar->offchan_tx_work, ath10k_offchan_tx_work);
 	skb_queue_head_init(&ar->offchan_tx_queue);
 
+	INIT_WORK(&ar->wmi_mgmt_tx_work, ath10k_mgmt_over_wmi_tx_work);
+	skb_queue_head_init(&ar->wmi_mgmt_tx_queue);
+
 	init_waitqueue_head(&ar->event_queue);
 
 	INIT_WORK(&ar->restart_work, ath10k_core_restart);
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index e2a2658cf841..984db115cb80 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -43,15 +43,17 @@
 /* Antenna noise floor */
 #define ATH10K_DEFAULT_NOISE_FLOOR -95
 
+#define ATH10K_MAX_NUM_MGMT_PENDING 16
+
 struct ath10k;
 
 struct ath10k_skb_cb {
 	dma_addr_t paddr;
 	bool is_mapped;
 	bool is_aborted;
+	u8 vdev_id;
 
 	struct {
-		u8 vdev_id;
 		u8 tid;
 		bool is_offchan;
 
@@ -284,6 +286,9 @@ enum ath10k_fw_features {
 	/* firmware from 10X branch */
 	ATH10K_FW_FEATURE_WMI_10X = 1,
 
+	/* firmware support tx frame management over WMI, otherwise it's HTT */
+	ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX = 2,
+
 	/* keep last */
 	ATH10K_FW_FEATURE_COUNT,
 };
@@ -393,6 +398,9 @@ struct ath10k {
 	struct completion offchan_tx_completed;
 	struct sk_buff *offchan_tx_skb;
 
+	struct work_struct wmi_mgmt_tx_work;
+	struct sk_buff_head wmi_mgmt_tx_queue;
+
 	enum ath10k_state state;
 
 	struct work_struct restart_work;
diff --git a/drivers/net/wireless/ath/ath10k/htt_tx.c b/drivers/net/wireless/ath/ath10k/htt_tx.c
index 3b93c6a01c6c..d9335e9d0d04 100644
--- a/drivers/net/wireless/ath/ath10k/htt_tx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_tx.c
@@ -308,7 +308,7 @@ int ath10k_htt_mgmt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 	struct sk_buff *txdesc = NULL;
 	struct htt_cmd *cmd;
 	struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(msdu);
-	u8 vdev_id = skb_cb->htt.vdev_id;
+	u8 vdev_id = skb_cb->vdev_id;
 	int len = 0;
 	int msdu_id = -1;
 	int res;
@@ -384,7 +384,7 @@ int ath10k_htt_tx(struct ath10k_htt *htt, struct sk_buff *msdu)
 	struct ath10k_skb_cb *skb_cb = ATH10K_SKB_CB(msdu);
 	struct sk_buff *txdesc = NULL;
 	bool use_frags;
-	u8 vdev_id = ATH10K_SKB_CB(msdu)->htt.vdev_id;
+	u8 vdev_id = ATH10K_SKB_CB(msdu)->vdev_id;
 	u8 tid;
 	int prefetch_len, desc_len;
 	int msdu_id = -1;
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index df4d29981c4b..f0bc707257a5 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1486,7 +1486,7 @@ static void ath10k_tx_h_add_p2p_noa_ie(struct ath10k *ar, struct sk_buff *skb)
 static void ath10k_tx_htt(struct ath10k *ar, struct sk_buff *skb)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
-	int ret;
+	int ret = 0;
 
 	if (ar->htt.target_version_major >= 3) {
 		/* Since HTT 3.0 there is no separate mgmt tx command */
@@ -1494,16 +1494,32 @@ static void ath10k_tx_htt(struct ath10k *ar, struct sk_buff *skb)
 		goto exit;
 	}
 
-	if (ieee80211_is_mgmt(hdr->frame_control))
-		ret = ath10k_htt_mgmt_tx(&ar->htt, skb);
-	else if (ieee80211_is_nullfunc(hdr->frame_control))
+	if (ieee80211_is_mgmt(hdr->frame_control)) {
+		if (test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX,
+			     ar->fw_features)) {
+			if (skb_queue_len(&ar->wmi_mgmt_tx_queue) >=
+			    ATH10K_MAX_NUM_MGMT_PENDING) {
+				ath10k_warn("wmi mgmt_tx queue limit reached\n");
+				ret = -EBUSY;
+				goto exit;
+			}
+
+			skb_queue_tail(&ar->wmi_mgmt_tx_queue, skb);
+			ieee80211_queue_work(ar->hw, &ar->wmi_mgmt_tx_work);
+		} else {
+			ret = ath10k_htt_mgmt_tx(&ar->htt, skb);
+		}
+	} else if (!test_bit(ATH10K_FW_FEATURE_HAS_WMI_MGMT_TX,
+			     ar->fw_features) &&
+		   ieee80211_is_nullfunc(hdr->frame_control)) {
 		/* FW does not report tx status properly for NullFunc frames
 		 * unless they are sent through mgmt tx path. mac80211 sends
-		 * those frames when it detects link/beacon loss and depends on
-		 * the tx status to be correct. */
+		 * those frames when it detects link/beacon loss and depends
+		 * on the tx status to be correct. */
 		ret = ath10k_htt_mgmt_tx(&ar->htt, skb);
-	else
+	} else {
 		ret = ath10k_htt_tx(&ar->htt, skb);
+	}
 
 exit:
 	if (ret) {
@@ -1554,7 +1570,7 @@ void ath10k_offchan_tx_work(struct work_struct *work)
 
 		hdr = (struct ieee80211_hdr *)skb->data;
 		peer_addr = ieee80211_get_DA(hdr);
-		vdev_id = ATH10K_SKB_CB(skb)->htt.vdev_id;
+		vdev_id = ATH10K_SKB_CB(skb)->vdev_id;
 
 		spin_lock_bh(&ar->data_lock);
 		peer = ath10k_peer_find(ar, vdev_id, peer_addr);
@@ -1596,6 +1612,36 @@ void ath10k_offchan_tx_work(struct work_struct *work)
 	}
 }
 
+void ath10k_mgmt_over_wmi_tx_purge(struct ath10k *ar)
+{
+	struct sk_buff *skb;
+
+	for (;;) {
+		skb = skb_dequeue(&ar->wmi_mgmt_tx_queue);
+		if (!skb)
+			break;
+
+		ieee80211_free_txskb(ar->hw, skb);
+	}
+}
+
+void ath10k_mgmt_over_wmi_tx_work(struct work_struct *work)
+{
+	struct ath10k *ar = container_of(work, struct ath10k, wmi_mgmt_tx_work);
+	struct sk_buff *skb;
+	int ret;
+
+	for (;;) {
+		skb = skb_dequeue(&ar->wmi_mgmt_tx_queue);
+		if (!skb)
+			break;
+
+		ret = ath10k_wmi_mgmt_tx(ar, skb);
+		if (ret)
+			ath10k_warn("wmi mgmt_tx failed (%d)\n", ret);
+	}
+}
+
 /************/
 /* Scanning */
 /************/
@@ -1754,14 +1800,14 @@ static void ath10k_tx(struct ieee80211_hw *hw,
 		ath10k_tx_h_seq_no(skb);
 	}
 
+	ATH10K_SKB_CB(skb)->vdev_id = vdev_id;
 	ATH10K_SKB_CB(skb)->htt.is_offchan = false;
-	ATH10K_SKB_CB(skb)->htt.vdev_id = vdev_id;
 	ATH10K_SKB_CB(skb)->htt.tid = tid;
 
 	if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN) {
 		spin_lock_bh(&ar->data_lock);
 		ATH10K_SKB_CB(skb)->htt.is_offchan = true;
-		ATH10K_SKB_CB(skb)->htt.vdev_id = ar->scan.vdev_id;
+		ATH10K_SKB_CB(skb)->vdev_id = ar->scan.vdev_id;
 		spin_unlock_bh(&ar->data_lock);
 
 		ath10k_dbg(ATH10K_DBG_MAC, "queued offchannel skb %p\n", skb);
@@ -1783,6 +1829,7 @@ void ath10k_halt(struct ath10k *ar)
 
 	del_timer_sync(&ar->scan.timeout);
 	ath10k_offchan_tx_purge(ar);
+	ath10k_mgmt_over_wmi_tx_purge(ar);
 	ath10k_peer_cleanup_all(ar);
 	ath10k_core_stop(ar);
 	ath10k_hif_power_down(ar);
@@ -1859,7 +1906,10 @@ static void ath10k_stop(struct ieee80211_hw *hw)
 	ar->state = ATH10K_STATE_OFF;
 	mutex_unlock(&ar->conf_mutex);
 
+	ath10k_mgmt_over_wmi_tx_purge(ar);
+
 	cancel_work_sync(&ar->offchan_tx_work);
+	cancel_work_sync(&ar->wmi_mgmt_tx_work);
 	cancel_work_sync(&ar->restart_work);
 }
 
diff --git a/drivers/net/wireless/ath/ath10k/mac.h b/drivers/net/wireless/ath/ath10k/mac.h
index 6fce9bfb19a5..ba1021997b8f 100644
--- a/drivers/net/wireless/ath/ath10k/mac.h
+++ b/drivers/net/wireless/ath/ath10k/mac.h
@@ -34,6 +34,8 @@ struct ath10k_vif *ath10k_get_arvif(struct ath10k *ar, u32 vdev_id);
 void ath10k_reset_scan(unsigned long ptr);
 void ath10k_offchan_tx_purge(struct ath10k *ar);
 void ath10k_offchan_tx_work(struct work_struct *work);
+void ath10k_mgmt_over_wmi_tx_purge(struct ath10k *ar);
+void ath10k_mgmt_over_wmi_tx_work(struct work_struct *work);
 void ath10k_halt(struct ath10k *ar);
 
 static inline struct ath10k_vif *ath10k_vif_to_arvif(struct ieee80211_vif *vif)
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 97ba23e78abf..8c223671ecc4 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -410,6 +410,57 @@ static int ath10k_wmi_cmd_send(struct ath10k *ar, struct sk_buff *skb,
 	return ret;
 }
 
+int ath10k_wmi_mgmt_tx(struct ath10k *ar, struct sk_buff *skb)
+{
+	int ret = 0;
+	struct wmi_mgmt_tx_cmd *cmd;
+	struct ieee80211_hdr *hdr;
+	struct sk_buff *wmi_skb;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	int len;
+	u16 fc;
+
+	hdr = (struct ieee80211_hdr *)skb->data;
+	fc = le16_to_cpu(hdr->frame_control);
+
+	if (WARN_ON_ONCE(!ieee80211_is_mgmt(hdr->frame_control)))
+		return -EINVAL;
+
+	len = sizeof(cmd->hdr) + skb->len;
+	len = round_up(len, 4);
+
+	wmi_skb = ath10k_wmi_alloc_skb(len);
+	if (!wmi_skb)
+		return -ENOMEM;
+
+	cmd = (struct wmi_mgmt_tx_cmd *)wmi_skb->data;
+
+	cmd->hdr.vdev_id = __cpu_to_le32(ATH10K_SKB_CB(skb)->vdev_id);
+	cmd->hdr.tx_rate = 0;
+	cmd->hdr.tx_power = 0;
+	cmd->hdr.buf_len = __cpu_to_le32((u32)(skb->len));
+
+	memcpy(cmd->hdr.peer_macaddr.addr, ieee80211_get_DA(hdr), ETH_ALEN);
+	memcpy(cmd->buf, skb->data, skb->len);
+
+	ath10k_dbg(ATH10K_DBG_WMI, "wmi mgmt tx skb %p len %d ftype %02x stype %02x\n",
+		   wmi_skb, wmi_skb->len, fc & IEEE80211_FCTL_FTYPE,
+		   fc & IEEE80211_FCTL_STYPE);
+
+	/* Send the management frame buffer to the target */
+	ret = ath10k_wmi_cmd_send(ar, wmi_skb, ar->wmi.cmd->mgmt_tx_cmdid);
+	if (ret) {
+		dev_kfree_skb_any(skb);
+		return ret;
+	}
+
+	/* TODO: report tx status to mac80211 - temporary just ACK */
+	info->flags |= IEEE80211_TX_STAT_ACK;
+	ieee80211_tx_status_irqsafe(ar->hw, skb);
+
+	return ret;
+}
+
 static int ath10k_wmi_event_scan(struct ath10k *ar, struct sk_buff *skb)
 {
 	struct wmi_scan_event *event = (struct wmi_scan_event *)skb->data;
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 56339d2e338a..1c515d682285 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -3483,5 +3483,6 @@ int ath10k_wmi_pdev_set_wmm_params(struct ath10k *ar,
 int ath10k_wmi_request_stats(struct ath10k *ar, enum wmi_stats_id stats_id);
 int ath10k_wmi_force_fw_hang(struct ath10k *ar,
 			     enum wmi_force_fw_hang_type type, u32 delay_ms);
+int ath10k_wmi_mgmt_tx(struct ath10k *ar, struct sk_buff *skb);
 
 #endif /* _WMI_H_ */
-- 
cgit 


From 12b2b9e33a58ff51a1a41a90e976a863736cc863 Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Thu, 26 Sep 2013 17:47:13 +0200
Subject: ath10k: split wmi_cmd_init path

Due to API differences in initialization structures for
main and 10.x firmwares we need to split the wmi_init_cmd
and wmi_resource_config  structures.

This will be usefull also when setting the correct TARGET values,
like: number of peers, vdevs, pdevs etc.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/wmi.c | 105 +++++++++++++++++-
 drivers/net/wireless/ath/ath10k/wmi.h | 195 ++++++++++++++++++++++++++++++++++
 2 files changed, 299 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 8c223671ecc4..71ad1b8868b2 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -1908,7 +1908,7 @@ int ath10k_wmi_pdev_set_param(struct ath10k *ar, enum wmi_pdev_param id,
 	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->pdev_set_param_cmdid);
 }
 
-int ath10k_wmi_cmd_init(struct ath10k *ar)
+static int ath10k_wmi_main_cmd_init(struct ath10k *ar)
 {
 	struct wmi_init_cmd *cmd;
 	struct sk_buff *buf;
@@ -2007,6 +2007,109 @@ out:
 	return ath10k_wmi_cmd_send(ar, buf, ar->wmi.cmd->init_cmdid);
 }
 
+static int ath10k_wmi_10x_cmd_init(struct ath10k *ar)
+{
+	struct wmi_init_cmd_10x *cmd;
+	struct sk_buff *buf;
+	struct wmi_resource_config_10x config = {};
+	u32 len, val;
+	int i;
+
+	config.num_vdevs = __cpu_to_le32(TARGET_NUM_VDEVS);
+	config.num_peers = __cpu_to_le32(TARGET_NUM_PEERS + TARGET_NUM_VDEVS);
+	config.num_peer_keys = __cpu_to_le32(TARGET_NUM_PEER_KEYS);
+	config.num_tids = __cpu_to_le32(TARGET_NUM_TIDS);
+	config.ast_skid_limit = __cpu_to_le32(TARGET_AST_SKID_LIMIT);
+	config.tx_chain_mask = __cpu_to_le32(TARGET_TX_CHAIN_MASK);
+	config.rx_chain_mask = __cpu_to_le32(TARGET_RX_CHAIN_MASK);
+	config.rx_timeout_pri_vo = __cpu_to_le32(TARGET_RX_TIMEOUT_LO_PRI);
+	config.rx_timeout_pri_vi = __cpu_to_le32(TARGET_RX_TIMEOUT_LO_PRI);
+	config.rx_timeout_pri_be = __cpu_to_le32(TARGET_RX_TIMEOUT_LO_PRI);
+	config.rx_timeout_pri_bk = __cpu_to_le32(TARGET_RX_TIMEOUT_HI_PRI);
+	config.rx_decap_mode = __cpu_to_le32(TARGET_RX_DECAP_MODE);
+
+	config.scan_max_pending_reqs =
+		__cpu_to_le32(TARGET_SCAN_MAX_PENDING_REQS);
+
+	config.bmiss_offload_max_vdev =
+		__cpu_to_le32(TARGET_BMISS_OFFLOAD_MAX_VDEV);
+
+	config.roam_offload_max_vdev =
+		__cpu_to_le32(TARGET_ROAM_OFFLOAD_MAX_VDEV);
+
+	config.roam_offload_max_ap_profiles =
+		__cpu_to_le32(TARGET_ROAM_OFFLOAD_MAX_AP_PROFILES);
+
+	config.num_mcast_groups = __cpu_to_le32(TARGET_NUM_MCAST_GROUPS);
+	config.num_mcast_table_elems =
+		__cpu_to_le32(TARGET_NUM_MCAST_TABLE_ELEMS);
+
+	config.mcast2ucast_mode = __cpu_to_le32(TARGET_MCAST2UCAST_MODE);
+	config.tx_dbg_log_size = __cpu_to_le32(TARGET_TX_DBG_LOG_SIZE);
+	config.num_wds_entries = __cpu_to_le32(TARGET_NUM_WDS_ENTRIES);
+	config.dma_burst_size = __cpu_to_le32(TARGET_DMA_BURST_SIZE);
+	config.mac_aggr_delim = __cpu_to_le32(TARGET_MAC_AGGR_DELIM);
+
+	val = TARGET_RX_SKIP_DEFRAG_TIMEOUT_DUP_DETECTION_CHECK;
+	config.rx_skip_defrag_timeout_dup_detection_check = __cpu_to_le32(val);
+
+	config.vow_config = __cpu_to_le32(TARGET_VOW_CONFIG);
+
+	config.num_msdu_desc = __cpu_to_le32(TARGET_NUM_MSDU_DESC);
+	config.max_frag_entries = __cpu_to_le32(TARGET_MAX_FRAG_ENTRIES);
+
+	len = sizeof(*cmd) +
+	      (sizeof(struct host_memory_chunk) * ar->wmi.num_mem_chunks);
+
+	buf = ath10k_wmi_alloc_skb(len);
+	if (!buf)
+		return -ENOMEM;
+
+	cmd = (struct wmi_init_cmd_10x *)buf->data;
+
+	if (ar->wmi.num_mem_chunks == 0) {
+		cmd->num_host_mem_chunks = 0;
+		goto out;
+	}
+
+	ath10k_dbg(ATH10K_DBG_WMI, "wmi sending %d memory chunks info.\n",
+		   __cpu_to_le32(ar->wmi.num_mem_chunks));
+
+	cmd->num_host_mem_chunks = __cpu_to_le32(ar->wmi.num_mem_chunks);
+
+	for (i = 0; i < ar->wmi.num_mem_chunks; i++) {
+		cmd->host_mem_chunks[i].ptr =
+			__cpu_to_le32(ar->wmi.mem_chunks[i].paddr);
+		cmd->host_mem_chunks[i].size =
+			__cpu_to_le32(ar->wmi.mem_chunks[i].len);
+		cmd->host_mem_chunks[i].req_id =
+			__cpu_to_le32(ar->wmi.mem_chunks[i].req_id);
+
+		ath10k_dbg(ATH10K_DBG_WMI,
+			   "wmi chunk %d len %d requested, addr 0x%x\n",
+			   i,
+			   cmd->host_mem_chunks[i].size,
+			   cmd->host_mem_chunks[i].ptr);
+	}
+out:
+	memcpy(&cmd->resource_config, &config, sizeof(config));
+
+	ath10k_dbg(ATH10K_DBG_WMI, "wmi init 10x\n");
+	return ath10k_wmi_cmd_send(ar, buf, ar->wmi.cmd->init_cmdid);
+}
+
+int ath10k_wmi_cmd_init(struct ath10k *ar)
+{
+	int ret;
+
+	if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features))
+		ret = ath10k_wmi_10x_cmd_init(ar);
+	else
+		ret = ath10k_wmi_main_cmd_init(ar);
+
+	return ret;
+}
+
 static int ath10k_wmi_start_scan_calc_len(const struct wmi_start_scan_arg *arg)
 {
 	int len;
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 1c515d682285..5383f7eddce7 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -1377,6 +1377,189 @@ struct wmi_resource_config {
 	__le32 max_frag_entries;
 } __packed;
 
+struct wmi_resource_config_10x {
+	/* number of virtual devices (VAPs) to support */
+	__le32 num_vdevs;
+
+	/* number of peer nodes to support */
+	__le32 num_peers;
+
+	/* number of keys per peer */
+	__le32 num_peer_keys;
+
+	/* total number of TX/RX data TIDs */
+	__le32 num_tids;
+
+	/*
+	 * max skid for resolving hash collisions
+	 *
+	 *   The address search table is sparse, so that if two MAC addresses
+	 *   result in the same hash value, the second of these conflicting
+	 *   entries can slide to the next index in the address search table,
+	 *   and use it, if it is unoccupied.  This ast_skid_limit parameter
+	 *   specifies the upper bound on how many subsequent indices to search
+	 *   over to find an unoccupied space.
+	 */
+	__le32 ast_skid_limit;
+
+	/*
+	 * the nominal chain mask for transmit
+	 *
+	 *   The chain mask may be modified dynamically, e.g. to operate AP
+	 *   tx with a reduced number of chains if no clients are associated.
+	 *   This configuration parameter specifies the nominal chain-mask that
+	 *   should be used when not operating with a reduced set of tx chains.
+	 */
+	__le32 tx_chain_mask;
+
+	/*
+	 * the nominal chain mask for receive
+	 *
+	 *   The chain mask may be modified dynamically, e.g. for a client
+	 *   to use a reduced number of chains for receive if the traffic to
+	 *   the client is low enough that it doesn't require downlink MIMO
+	 *   or antenna diversity.
+	 *   This configuration parameter specifies the nominal chain-mask that
+	 *   should be used when not operating with a reduced set of rx chains.
+	 */
+	__le32 rx_chain_mask;
+
+	/*
+	 * what rx reorder timeout (ms) to use for the AC
+	 *
+	 *   Each WMM access class (voice, video, best-effort, background) will
+	 *   have its own timeout value to dictate how long to wait for missing
+	 *   rx MPDUs to arrive before flushing subsequent MPDUs that have
+	 *   already been received.
+	 *   This parameter specifies the timeout in milliseconds for each
+	 *   class.
+	 */
+	__le32 rx_timeout_pri_vi;
+	__le32 rx_timeout_pri_vo;
+	__le32 rx_timeout_pri_be;
+	__le32 rx_timeout_pri_bk;
+
+	/*
+	 * what mode the rx should decap packets to
+	 *
+	 *   MAC can decap to RAW (no decap), native wifi or Ethernet types
+	 *   THis setting also determines the default TX behavior, however TX
+	 *   behavior can be modified on a per VAP basis during VAP init
+	 */
+	__le32 rx_decap_mode;
+
+	/* what is the maximum scan requests than can be queued */
+	__le32 scan_max_pending_reqs;
+
+	/* maximum VDEV that could use BMISS offload */
+	__le32 bmiss_offload_max_vdev;
+
+	/* maximum VDEV that could use offload roaming */
+	__le32 roam_offload_max_vdev;
+
+	/* maximum AP profiles that would push to offload roaming */
+	__le32 roam_offload_max_ap_profiles;
+
+	/*
+	 * how many groups to use for mcast->ucast conversion
+	 *
+	 *   The target's WAL maintains a table to hold information regarding
+	 *   which peers belong to a given multicast group, so that if
+	 *   multicast->unicast conversion is enabled, the target can convert
+	 *   multicast tx frames to a series of unicast tx frames, to each
+	 *   peer within the multicast group.
+	     This num_mcast_groups configuration parameter tells the target how
+	 *   many multicast groups to provide storage for within its multicast
+	 *   group membership table.
+	 */
+	__le32 num_mcast_groups;
+
+	/*
+	 * size to alloc for the mcast membership table
+	 *
+	 *   This num_mcast_table_elems configuration parameter tells the
+	 *   target how many peer elements it needs to provide storage for in
+	 *   its multicast group membership table.
+	 *   These multicast group membership table elements are shared by the
+	 *   multicast groups stored within the table.
+	 */
+	__le32 num_mcast_table_elems;
+
+	/*
+	 * whether/how to do multicast->unicast conversion
+	 *
+	 *   This configuration parameter specifies whether the target should
+	 *   perform multicast --> unicast conversion on transmit, and if so,
+	 *   what to do if it finds no entries in its multicast group
+	 *   membership table for the multicast IP address in the tx frame.
+	 *   Configuration value:
+	 *   0 -> Do not perform multicast to unicast conversion.
+	 *   1 -> Convert multicast frames to unicast, if the IP multicast
+	 *        address from the tx frame is found in the multicast group
+	 *        membership table.  If the IP multicast address is not found,
+	 *        drop the frame.
+	 *   2 -> Convert multicast frames to unicast, if the IP multicast
+	 *        address from the tx frame is found in the multicast group
+	 *        membership table.  If the IP multicast address is not found,
+	 *        transmit the frame as multicast.
+	 */
+	__le32 mcast2ucast_mode;
+
+	/*
+	 * how much memory to allocate for a tx PPDU dbg log
+	 *
+	 *   This parameter controls how much memory the target will allocate
+	 *   to store a log of tx PPDU meta-information (how large the PPDU
+	 *   was, when it was sent, whether it was successful, etc.)
+	 */
+	__le32 tx_dbg_log_size;
+
+	/* how many AST entries to be allocated for WDS */
+	__le32 num_wds_entries;
+
+	/*
+	 * MAC DMA burst size, e.g., For target PCI limit can be
+	 * 0 -default, 1 256B
+	 */
+	__le32 dma_burst_size;
+
+	/*
+	 * Fixed delimiters to be inserted after every MPDU to
+	 * account for interface latency to avoid underrun.
+	 */
+	__le32 mac_aggr_delim;
+
+	/*
+	 *   determine whether target is responsible for detecting duplicate
+	 *   non-aggregate MPDU and timing out stale fragments.
+	 *
+	 *   A-MPDU reordering is always performed on the target.
+	 *
+	 *   0: target responsible for frag timeout and dup checking
+	 *   1: host responsible for frag timeout and dup checking
+	 */
+	__le32 rx_skip_defrag_timeout_dup_detection_check;
+
+	/*
+	 * Configuration for VoW :
+	 * No of Video Nodes to be supported
+	 * and Max no of descriptors for each Video link (node).
+	 */
+	__le32 vow_config;
+
+	/* Number of msdu descriptors target should use */
+	__le32 num_msdu_desc;
+
+	/*
+	 * Max. number of Tx fragments per MSDU
+	 *  This parameter controls the max number of Tx fragments per MSDU.
+	 *  This is sent by the target as part of the WMI_SERVICE_READY event
+	 *  and is overriden by the OS shim as required.
+	 */
+	__le32 max_frag_entries;
+} __packed;
+
+
 #define NUM_UNITS_IS_NUM_VDEVS   0x1
 #define NUM_UNITS_IS_NUM_PEERS   0x2
 
@@ -1401,6 +1584,18 @@ struct wmi_init_cmd {
 	struct host_memory_chunk host_mem_chunks[1];
 } __packed;
 
+/* _10x stucture is from 10.X FW API */
+struct wmi_init_cmd_10x {
+	struct wmi_resource_config_10x resource_config;
+	__le32 num_host_mem_chunks;
+
+	/*
+	 * variable number of host memory chunks.
+	 * This should be the last element in the structure
+	 */
+	struct host_memory_chunk host_mem_chunks[1];
+} __packed;
+
 /* TLV for channel list */
 struct wmi_chan_list {
 	__le32 tag; /* WMI_CHAN_LIST_TAG */
-- 
cgit 


From ec6a73f00eba1cfca99599bf337ee3c66f89d735 Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Thu, 26 Sep 2013 17:47:14 +0200
Subject: ath10k: add TARGET values for 10.x firmware

Introduce all TARGET specific values for 10.x firmware.
Some of them are common for both firmwares we will support,
but to avoid confusion, define everything with prefix 10X_.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/hw.h  | 31 +++++++++++++++++++
 drivers/net/wireless/ath/ath10k/wmi.c | 58 +++++++++++++++++------------------
 2 files changed, 60 insertions(+), 29 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
index 66e721a1afde..2de13db5e5de 100644
--- a/drivers/net/wireless/ath/ath10k/hw.h
+++ b/drivers/net/wireless/ath/ath10k/hw.h
@@ -53,6 +53,7 @@ enum ath10k_mcast2ucast_mode {
 	ATH10K_MCAST2UCAST_ENABLED = 1,
 };
 
+/* Target specific defines for MAIN firmware */
 #define TARGET_NUM_VDEVS			8
 #define TARGET_NUM_PEER_AST			2
 #define TARGET_NUM_WDS_ENTRIES			32
@@ -87,6 +88,36 @@ enum ath10k_mcast2ucast_mode {
 #define TARGET_NUM_MSDU_DESC			(1024 + 400)
 #define TARGET_MAX_FRAG_ENTRIES			0
 
+/* Target specific defines for 10.X firmware */
+#define TARGET_10X_NUM_VDEVS			16
+#define TARGET_10X_NUM_PEER_AST			2
+#define TARGET_10X_NUM_WDS_ENTRIES		32
+#define TARGET_10X_DMA_BURST_SIZE		0
+#define TARGET_10X_MAC_AGGR_DELIM		0
+#define TARGET_10X_AST_SKID_LIMIT		16
+#define TARGET_10X_NUM_PEERS			(128 + (TARGET_10X_NUM_VDEVS))
+#define TARGET_10X_NUM_OFFLOAD_PEERS		0
+#define TARGET_10X_NUM_OFFLOAD_REORDER_BUFS	0
+#define TARGET_10X_NUM_PEER_KEYS		2
+#define TARGET_10X_NUM_TIDS			256
+#define TARGET_10X_TX_CHAIN_MASK		(BIT(0) | BIT(1) | BIT(2))
+#define TARGET_10X_RX_CHAIN_MASK		(BIT(0) | BIT(1) | BIT(2))
+#define TARGET_10X_RX_TIMEOUT_LO_PRI		100
+#define TARGET_10X_RX_TIMEOUT_HI_PRI		40
+#define TARGET_10X_RX_DECAP_MODE		ATH10K_HW_TXRX_ETHERNET
+#define TARGET_10X_SCAN_MAX_PENDING_REQS	4
+#define TARGET_10X_BMISS_OFFLOAD_MAX_VDEV	2
+#define TARGET_10X_ROAM_OFFLOAD_MAX_VDEV	2
+#define TARGET_10X_ROAM_OFFLOAD_MAX_AP_PROFILES	8
+#define TARGET_10X_GTK_OFFLOAD_MAX_VDEV		3
+#define TARGET_10X_NUM_MCAST_GROUPS		0
+#define TARGET_10X_NUM_MCAST_TABLE_ELEMS	0
+#define TARGET_10X_MCAST2UCAST_MODE		ATH10K_MCAST2UCAST_DISABLED
+#define TARGET_10X_TX_DBG_LOG_SIZE		1024
+#define TARGET_10X_RX_SKIP_DEFRAG_TIMEOUT_DUP_DETECTION_CHECK 1
+#define TARGET_10X_VOW_CONFIG			0
+#define TARGET_10X_NUM_MSDU_DESC		(1024 + 400)
+#define TARGET_10X_MAX_FRAG_ENTRIES		0
 
 /* Number of Copy Engines supported */
 #define CE_COUNT 8
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 71ad1b8868b2..637f8d0aa7eb 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -1451,9 +1451,9 @@ static void ath10k_wmi_10x_service_ready_event_rx(struct ath10k *ar,
 			 * peers, 1 extra for self peer on target */
 			/* this needs to be tied, host and target
 			 * can get out of sync */
-			num_units = TARGET_NUM_PEERS + 1;
+			num_units = TARGET_10X_NUM_PEERS + 1;
 		else if (num_unit_info & NUM_UNITS_IS_NUM_VDEVS)
-			num_units = TARGET_NUM_VDEVS + 1;
+			num_units = TARGET_10X_NUM_VDEVS + 1;
 
 		ath10k_dbg(ATH10K_DBG_WMI,
 			   "wmi mem_req_id %d num_units %d num_unit_info %d unit size %d actual units %d\n",
@@ -2015,48 +2015,48 @@ static int ath10k_wmi_10x_cmd_init(struct ath10k *ar)
 	u32 len, val;
 	int i;
 
-	config.num_vdevs = __cpu_to_le32(TARGET_NUM_VDEVS);
-	config.num_peers = __cpu_to_le32(TARGET_NUM_PEERS + TARGET_NUM_VDEVS);
-	config.num_peer_keys = __cpu_to_le32(TARGET_NUM_PEER_KEYS);
-	config.num_tids = __cpu_to_le32(TARGET_NUM_TIDS);
-	config.ast_skid_limit = __cpu_to_le32(TARGET_AST_SKID_LIMIT);
-	config.tx_chain_mask = __cpu_to_le32(TARGET_TX_CHAIN_MASK);
-	config.rx_chain_mask = __cpu_to_le32(TARGET_RX_CHAIN_MASK);
-	config.rx_timeout_pri_vo = __cpu_to_le32(TARGET_RX_TIMEOUT_LO_PRI);
-	config.rx_timeout_pri_vi = __cpu_to_le32(TARGET_RX_TIMEOUT_LO_PRI);
-	config.rx_timeout_pri_be = __cpu_to_le32(TARGET_RX_TIMEOUT_LO_PRI);
-	config.rx_timeout_pri_bk = __cpu_to_le32(TARGET_RX_TIMEOUT_HI_PRI);
-	config.rx_decap_mode = __cpu_to_le32(TARGET_RX_DECAP_MODE);
+	config.num_vdevs = __cpu_to_le32(TARGET_10X_NUM_VDEVS);
+	config.num_peers = __cpu_to_le32(TARGET_10X_NUM_PEERS);
+	config.num_peer_keys = __cpu_to_le32(TARGET_10X_NUM_PEER_KEYS);
+	config.num_tids = __cpu_to_le32(TARGET_10X_NUM_TIDS);
+	config.ast_skid_limit = __cpu_to_le32(TARGET_10X_AST_SKID_LIMIT);
+	config.tx_chain_mask = __cpu_to_le32(TARGET_10X_TX_CHAIN_MASK);
+	config.rx_chain_mask = __cpu_to_le32(TARGET_10X_RX_CHAIN_MASK);
+	config.rx_timeout_pri_vo = __cpu_to_le32(TARGET_10X_RX_TIMEOUT_LO_PRI);
+	config.rx_timeout_pri_vi = __cpu_to_le32(TARGET_10X_RX_TIMEOUT_LO_PRI);
+	config.rx_timeout_pri_be = __cpu_to_le32(TARGET_10X_RX_TIMEOUT_LO_PRI);
+	config.rx_timeout_pri_bk = __cpu_to_le32(TARGET_10X_RX_TIMEOUT_HI_PRI);
+	config.rx_decap_mode = __cpu_to_le32(TARGET_10X_RX_DECAP_MODE);
 
 	config.scan_max_pending_reqs =
-		__cpu_to_le32(TARGET_SCAN_MAX_PENDING_REQS);
+		__cpu_to_le32(TARGET_10X_SCAN_MAX_PENDING_REQS);
 
 	config.bmiss_offload_max_vdev =
-		__cpu_to_le32(TARGET_BMISS_OFFLOAD_MAX_VDEV);
+		__cpu_to_le32(TARGET_10X_BMISS_OFFLOAD_MAX_VDEV);
 
 	config.roam_offload_max_vdev =
-		__cpu_to_le32(TARGET_ROAM_OFFLOAD_MAX_VDEV);
+		__cpu_to_le32(TARGET_10X_ROAM_OFFLOAD_MAX_VDEV);
 
 	config.roam_offload_max_ap_profiles =
-		__cpu_to_le32(TARGET_ROAM_OFFLOAD_MAX_AP_PROFILES);
+		__cpu_to_le32(TARGET_10X_ROAM_OFFLOAD_MAX_AP_PROFILES);
 
-	config.num_mcast_groups = __cpu_to_le32(TARGET_NUM_MCAST_GROUPS);
+	config.num_mcast_groups = __cpu_to_le32(TARGET_10X_NUM_MCAST_GROUPS);
 	config.num_mcast_table_elems =
-		__cpu_to_le32(TARGET_NUM_MCAST_TABLE_ELEMS);
+		__cpu_to_le32(TARGET_10X_NUM_MCAST_TABLE_ELEMS);
 
-	config.mcast2ucast_mode = __cpu_to_le32(TARGET_MCAST2UCAST_MODE);
-	config.tx_dbg_log_size = __cpu_to_le32(TARGET_TX_DBG_LOG_SIZE);
-	config.num_wds_entries = __cpu_to_le32(TARGET_NUM_WDS_ENTRIES);
-	config.dma_burst_size = __cpu_to_le32(TARGET_DMA_BURST_SIZE);
-	config.mac_aggr_delim = __cpu_to_le32(TARGET_MAC_AGGR_DELIM);
+	config.mcast2ucast_mode = __cpu_to_le32(TARGET_10X_MCAST2UCAST_MODE);
+	config.tx_dbg_log_size = __cpu_to_le32(TARGET_10X_TX_DBG_LOG_SIZE);
+	config.num_wds_entries = __cpu_to_le32(TARGET_10X_NUM_WDS_ENTRIES);
+	config.dma_burst_size = __cpu_to_le32(TARGET_10X_DMA_BURST_SIZE);
+	config.mac_aggr_delim = __cpu_to_le32(TARGET_10X_MAC_AGGR_DELIM);
 
-	val = TARGET_RX_SKIP_DEFRAG_TIMEOUT_DUP_DETECTION_CHECK;
+	val = TARGET_10X_RX_SKIP_DEFRAG_TIMEOUT_DUP_DETECTION_CHECK;
 	config.rx_skip_defrag_timeout_dup_detection_check = __cpu_to_le32(val);
 
-	config.vow_config = __cpu_to_le32(TARGET_VOW_CONFIG);
+	config.vow_config = __cpu_to_le32(TARGET_10X_VOW_CONFIG);
 
-	config.num_msdu_desc = __cpu_to_le32(TARGET_NUM_MSDU_DESC);
-	config.max_frag_entries = __cpu_to_le32(TARGET_MAX_FRAG_ENTRIES);
+	config.num_msdu_desc = __cpu_to_le32(TARGET_10X_NUM_MSDU_DESC);
+	config.max_frag_entries = __cpu_to_le32(TARGET_10X_MAX_FRAG_ENTRIES);
 
 	len = sizeof(*cmd) +
 	      (sizeof(struct host_memory_chunk) * ar->wmi.num_mem_chunks);
-- 
cgit 


From 6d1506e788ecf3c423f275036d37a40d1416db42 Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Thu, 26 Sep 2013 17:47:15 +0200
Subject: ath10k: introduce dynamic vdev parameters

Both firmwares (main and 10.x) have different set of vdev
parameters. To stay in sync with FW API, this patch introduces
a dynamic registering method.

ath10k_wmi_vdev_set_param() takes now indirect u32 value
to identify the Vdev parameter it want's to set.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.h |   1 +
 drivers/net/wireless/ath/ath10k/mac.c  |  55 ++++++-----
 drivers/net/wireless/ath/ath10k/wmi.c  | 129 ++++++++++++++++++++++++-
 drivers/net/wireless/ath/ath10k/wmi.h  | 172 ++++++++++++++++++++++++++++++++-
 4 files changed, 332 insertions(+), 25 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 984db115cb80..124e7246bb44 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -119,6 +119,7 @@ struct ath10k_wmi {
 	struct completion unified_ready;
 	wait_queue_head_t tx_credits_wq;
 	struct wmi_cmd_map *cmd;
+	struct wmi_vdev_param_map *vdev_param;
 
 	u32 num_mem_chunks;
 	struct ath10k_mem_chunk mem_chunks[ATH10K_MAX_MEM_REQS];
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index f0bc707257a5..b5ae01de684e 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -334,25 +334,29 @@ static int ath10k_peer_create(struct ath10k *ar, u32 vdev_id, const u8 *addr)
 
 static int  ath10k_mac_set_rts(struct ath10k_vif *arvif, u32 value)
 {
+	struct ath10k *ar = arvif->ar;
+	u32 vdev_param;
+
 	if (value != 0xFFFFFFFF)
 		value = min_t(u32, arvif->ar->hw->wiphy->rts_threshold,
 			      ATH10K_RTS_MAX);
 
-	return ath10k_wmi_vdev_set_param(arvif->ar, arvif->vdev_id,
-					 WMI_VDEV_PARAM_RTS_THRESHOLD,
-					 value);
+	vdev_param = ar->wmi.vdev_param->rts_threshold;
+	return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, value);
 }
 
 static int ath10k_mac_set_frag(struct ath10k_vif *arvif, u32 value)
 {
+	struct ath10k *ar = arvif->ar;
+	u32 vdev_param;
+
 	if (value != 0xFFFFFFFF)
 		value = clamp_t(u32, arvif->ar->hw->wiphy->frag_threshold,
 				ATH10K_FRAGMT_THRESHOLD_MIN,
 				ATH10K_FRAGMT_THRESHOLD_MAX);
 
-	return ath10k_wmi_vdev_set_param(arvif->ar, arvif->vdev_id,
-					 WMI_VDEV_PARAM_FRAGMENTATION_THRESHOLD,
-					 value);
+	vdev_param = ar->wmi.vdev_param->fragmentation_threshold;
+	return ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param, value);
 }
 
 static int ath10k_peer_delete(struct ath10k *ar, u32 vdev_id, const u8 *addr)
@@ -674,6 +678,7 @@ static void ath10k_control_ibss(struct ath10k_vif *arvif,
 				struct ieee80211_bss_conf *info,
 				const u8 self_peer[ETH_ALEN])
 {
+	u32 vdev_param;
 	int ret = 0;
 
 	lockdep_assert_held(&arvif->ar->conf_mutex);
@@ -707,8 +712,8 @@ static void ath10k_control_ibss(struct ath10k_vif *arvif,
 		return;
 	}
 
-	ret = ath10k_wmi_vdev_set_param(arvif->ar, arvif->vdev_id,
-					WMI_VDEV_PARAM_ATIM_WINDOW,
+	vdev_param = arvif->ar->wmi.vdev_param->atim_window;
+	ret = ath10k_wmi_vdev_set_param(arvif->ar, arvif->vdev_id, vdev_param,
 					ATH10K_DEFAULT_ATIM);
 	if (ret)
 		ath10k_warn("Failed to set IBSS ATIM for VDEV:%d ret:%d\n",
@@ -1430,6 +1435,7 @@ static void ath10k_tx_h_update_wep_key(struct sk_buff *skb)
 	struct ath10k *ar = arvif->ar;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 	struct ieee80211_key_conf *key = info->control.hw_key;
+	u32 vdev_param;
 	int ret;
 
 	if (!ieee80211_has_protected(hdr->frame_control))
@@ -1448,8 +1454,8 @@ static void ath10k_tx_h_update_wep_key(struct sk_buff *skb)
 	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d keyidx %d\n",
 		   arvif->vdev_id, key->keyidx);
 
-	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
-					WMI_VDEV_PARAM_DEF_KEYID,
+	vdev_param = ar->wmi.vdev_param->def_keyid;
+	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
 					key->keyidx);
 	if (ret) {
 		ath10k_warn("could not update wep keyidx (%d)\n", ret);
@@ -1983,6 +1989,7 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 	int ret = 0;
 	u32 value;
 	int bit;
+	u32 vdev_param;
 
 	mutex_lock(&ar->conf_mutex);
 
@@ -2044,13 +2051,14 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 		goto exit;
 	}
 
-	ret = ath10k_wmi_vdev_set_param(ar, 0, WMI_VDEV_PARAM_DEF_KEYID,
+	vdev_param = ar->wmi.vdev_param->def_keyid;
+	ret = ath10k_wmi_vdev_set_param(ar, 0, vdev_param,
 					arvif->def_wep_key_index);
 	if (ret)
 		ath10k_warn("Failed to set default keyid: %d\n", ret);
 
-	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
-					WMI_VDEV_PARAM_TX_ENCAP_TYPE,
+	vdev_param = ar->wmi.vdev_param->tx_encap_type;
+	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
 					ATH10K_HW_TXRX_NATIVE_WIFI);
 	if (ret)
 		ath10k_warn("Failed to set TX encap: %d\n", ret);
@@ -2201,6 +2209,7 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 	struct ath10k *ar = hw->priv;
 	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
 	int ret = 0;
+	u32 vdev_param;
 
 	mutex_lock(&ar->conf_mutex);
 
@@ -2209,8 +2218,8 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 
 	if (changed & BSS_CHANGED_BEACON_INT) {
 		arvif->beacon_interval = info->beacon_int;
-		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
-						WMI_VDEV_PARAM_BEACON_INTERVAL,
+		vdev_param = ar->wmi.vdev_param->beacon_interval;
+		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
 						arvif->beacon_interval);
 		ath10k_dbg(ATH10K_DBG_MAC,
 			   "mac vdev %d beacon_interval %d\n",
@@ -2241,8 +2250,8 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 			   "mac vdev %d dtim_period %d\n",
 			   arvif->vdev_id, arvif->dtim_period);
 
-		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
-						WMI_VDEV_PARAM_DTIM_PERIOD,
+		vdev_param = ar->wmi.vdev_param->dtim_period;
+		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
 						arvif->dtim_period);
 		if (ret)
 			ath10k_warn("Failed to set dtim period for VDEV: %d\n",
@@ -2309,8 +2318,8 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 		ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d cts_prot %d\n",
 			   arvif->vdev_id, cts_prot);
 
-		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
-						WMI_VDEV_PARAM_ENABLE_RTSCTS,
+		vdev_param = ar->wmi.vdev_param->enable_rtscts;
+		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
 						cts_prot);
 		if (ret)
 			ath10k_warn("Failed to set CTS prot for VDEV: %d\n",
@@ -2328,8 +2337,8 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 		ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d slot_time %d\n",
 			   arvif->vdev_id, slottime);
 
-		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
-						WMI_VDEV_PARAM_SLOT_TIME,
+		vdev_param = ar->wmi.vdev_param->slot_time;
+		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
 						slottime);
 		if (ret)
 			ath10k_warn("Failed to set erp slot for VDEV: %d\n",
@@ -2347,8 +2356,8 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 			   "mac vdev %d preamble %dn",
 			   arvif->vdev_id, preamble);
 
-		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id,
-						WMI_VDEV_PARAM_PREAMBLE,
+		vdev_param = ar->wmi.vdev_param->preamble;
+		ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
 						preamble);
 		if (ret)
 			ath10k_warn("Failed to set preamble for VDEV: %d\n",
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 637f8d0aa7eb..89a8cb862c81 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -265,6 +265,124 @@ static struct wmi_cmd_map wmi_10x_cmd_map = {
 	.gpio_output_cmdid = WMI_10X_GPIO_OUTPUT_CMDID,
 };
 
+/* MAIN WMI VDEV param map */
+static struct wmi_vdev_param_map wmi_vdev_param_map = {
+	.rts_threshold = WMI_VDEV_PARAM_RTS_THRESHOLD,
+	.fragmentation_threshold = WMI_VDEV_PARAM_FRAGMENTATION_THRESHOLD,
+	.beacon_interval = WMI_VDEV_PARAM_BEACON_INTERVAL,
+	.listen_interval = WMI_VDEV_PARAM_LISTEN_INTERVAL,
+	.multicast_rate = WMI_VDEV_PARAM_MULTICAST_RATE,
+	.mgmt_tx_rate = WMI_VDEV_PARAM_MGMT_TX_RATE,
+	.slot_time = WMI_VDEV_PARAM_SLOT_TIME,
+	.preamble = WMI_VDEV_PARAM_PREAMBLE,
+	.swba_time = WMI_VDEV_PARAM_SWBA_TIME,
+	.wmi_vdev_stats_update_period = WMI_VDEV_STATS_UPDATE_PERIOD,
+	.wmi_vdev_pwrsave_ageout_time = WMI_VDEV_PWRSAVE_AGEOUT_TIME,
+	.wmi_vdev_host_swba_interval = WMI_VDEV_HOST_SWBA_INTERVAL,
+	.dtim_period = WMI_VDEV_PARAM_DTIM_PERIOD,
+	.wmi_vdev_oc_scheduler_air_time_limit =
+					WMI_VDEV_OC_SCHEDULER_AIR_TIME_LIMIT,
+	.wds = WMI_VDEV_PARAM_WDS,
+	.atim_window = WMI_VDEV_PARAM_ATIM_WINDOW,
+	.bmiss_count_max = WMI_VDEV_PARAM_BMISS_COUNT_MAX,
+	.bmiss_first_bcnt = WMI_VDEV_PARAM_BMISS_FIRST_BCNT,
+	.bmiss_final_bcnt = WMI_VDEV_PARAM_BMISS_FINAL_BCNT,
+	.feature_wmm = WMI_VDEV_PARAM_FEATURE_WMM,
+	.chwidth = WMI_VDEV_PARAM_CHWIDTH,
+	.chextoffset = WMI_VDEV_PARAM_CHEXTOFFSET,
+	.disable_htprotection =	WMI_VDEV_PARAM_DISABLE_HTPROTECTION,
+	.sta_quickkickout = WMI_VDEV_PARAM_STA_QUICKKICKOUT,
+	.mgmt_rate = WMI_VDEV_PARAM_MGMT_RATE,
+	.protection_mode = WMI_VDEV_PARAM_PROTECTION_MODE,
+	.fixed_rate = WMI_VDEV_PARAM_FIXED_RATE,
+	.sgi = WMI_VDEV_PARAM_SGI,
+	.ldpc = WMI_VDEV_PARAM_LDPC,
+	.tx_stbc = WMI_VDEV_PARAM_TX_STBC,
+	.rx_stbc = WMI_VDEV_PARAM_RX_STBC,
+	.intra_bss_fwd = WMI_VDEV_PARAM_INTRA_BSS_FWD,
+	.def_keyid = WMI_VDEV_PARAM_DEF_KEYID,
+	.nss = WMI_VDEV_PARAM_NSS,
+	.bcast_data_rate = WMI_VDEV_PARAM_BCAST_DATA_RATE,
+	.mcast_data_rate = WMI_VDEV_PARAM_MCAST_DATA_RATE,
+	.mcast_indicate = WMI_VDEV_PARAM_MCAST_INDICATE,
+	.dhcp_indicate = WMI_VDEV_PARAM_DHCP_INDICATE,
+	.unknown_dest_indicate = WMI_VDEV_PARAM_UNKNOWN_DEST_INDICATE,
+	.ap_keepalive_min_idle_inactive_time_secs =
+			WMI_VDEV_PARAM_AP_KEEPALIVE_MIN_IDLE_INACTIVE_TIME_SECS,
+	.ap_keepalive_max_idle_inactive_time_secs =
+			WMI_VDEV_PARAM_AP_KEEPALIVE_MAX_IDLE_INACTIVE_TIME_SECS,
+	.ap_keepalive_max_unresponsive_time_secs =
+			WMI_VDEV_PARAM_AP_KEEPALIVE_MAX_UNRESPONSIVE_TIME_SECS,
+	.ap_enable_nawds = WMI_VDEV_PARAM_AP_ENABLE_NAWDS,
+	.mcast2ucast_set = WMI_VDEV_PARAM_UNSUPPORTED,
+	.enable_rtscts = WMI_VDEV_PARAM_ENABLE_RTSCTS,
+	.txbf = WMI_VDEV_PARAM_TXBF,
+	.packet_powersave = WMI_VDEV_PARAM_PACKET_POWERSAVE,
+	.drop_unencry = WMI_VDEV_PARAM_DROP_UNENCRY,
+	.tx_encap_type = WMI_VDEV_PARAM_TX_ENCAP_TYPE,
+	.ap_detect_out_of_sync_sleeping_sta_time_secs =
+					WMI_VDEV_PARAM_UNSUPPORTED,
+};
+
+/* 10.X WMI VDEV param map */
+static struct wmi_vdev_param_map wmi_10x_vdev_param_map = {
+	.rts_threshold = WMI_10X_VDEV_PARAM_RTS_THRESHOLD,
+	.fragmentation_threshold = WMI_10X_VDEV_PARAM_FRAGMENTATION_THRESHOLD,
+	.beacon_interval = WMI_10X_VDEV_PARAM_BEACON_INTERVAL,
+	.listen_interval = WMI_10X_VDEV_PARAM_LISTEN_INTERVAL,
+	.multicast_rate = WMI_10X_VDEV_PARAM_MULTICAST_RATE,
+	.mgmt_tx_rate = WMI_10X_VDEV_PARAM_MGMT_TX_RATE,
+	.slot_time = WMI_10X_VDEV_PARAM_SLOT_TIME,
+	.preamble = WMI_10X_VDEV_PARAM_PREAMBLE,
+	.swba_time = WMI_10X_VDEV_PARAM_SWBA_TIME,
+	.wmi_vdev_stats_update_period = WMI_10X_VDEV_STATS_UPDATE_PERIOD,
+	.wmi_vdev_pwrsave_ageout_time = WMI_10X_VDEV_PWRSAVE_AGEOUT_TIME,
+	.wmi_vdev_host_swba_interval = WMI_10X_VDEV_HOST_SWBA_INTERVAL,
+	.dtim_period = WMI_10X_VDEV_PARAM_DTIM_PERIOD,
+	.wmi_vdev_oc_scheduler_air_time_limit =
+				WMI_10X_VDEV_OC_SCHEDULER_AIR_TIME_LIMIT,
+	.wds = WMI_10X_VDEV_PARAM_WDS,
+	.atim_window = WMI_10X_VDEV_PARAM_ATIM_WINDOW,
+	.bmiss_count_max = WMI_10X_VDEV_PARAM_BMISS_COUNT_MAX,
+	.bmiss_first_bcnt = WMI_VDEV_PARAM_UNSUPPORTED,
+	.bmiss_final_bcnt = WMI_VDEV_PARAM_UNSUPPORTED,
+	.feature_wmm = WMI_10X_VDEV_PARAM_FEATURE_WMM,
+	.chwidth = WMI_10X_VDEV_PARAM_CHWIDTH,
+	.chextoffset = WMI_10X_VDEV_PARAM_CHEXTOFFSET,
+	.disable_htprotection = WMI_10X_VDEV_PARAM_DISABLE_HTPROTECTION,
+	.sta_quickkickout = WMI_10X_VDEV_PARAM_STA_QUICKKICKOUT,
+	.mgmt_rate = WMI_10X_VDEV_PARAM_MGMT_RATE,
+	.protection_mode = WMI_10X_VDEV_PARAM_PROTECTION_MODE,
+	.fixed_rate = WMI_10X_VDEV_PARAM_FIXED_RATE,
+	.sgi = WMI_10X_VDEV_PARAM_SGI,
+	.ldpc = WMI_10X_VDEV_PARAM_LDPC,
+	.tx_stbc = WMI_10X_VDEV_PARAM_TX_STBC,
+	.rx_stbc = WMI_10X_VDEV_PARAM_RX_STBC,
+	.intra_bss_fwd = WMI_10X_VDEV_PARAM_INTRA_BSS_FWD,
+	.def_keyid = WMI_10X_VDEV_PARAM_DEF_KEYID,
+	.nss = WMI_10X_VDEV_PARAM_NSS,
+	.bcast_data_rate = WMI_10X_VDEV_PARAM_BCAST_DATA_RATE,
+	.mcast_data_rate = WMI_10X_VDEV_PARAM_MCAST_DATA_RATE,
+	.mcast_indicate = WMI_10X_VDEV_PARAM_MCAST_INDICATE,
+	.dhcp_indicate = WMI_10X_VDEV_PARAM_DHCP_INDICATE,
+	.unknown_dest_indicate = WMI_10X_VDEV_PARAM_UNKNOWN_DEST_INDICATE,
+	.ap_keepalive_min_idle_inactive_time_secs =
+		WMI_10X_VDEV_PARAM_AP_KEEPALIVE_MIN_IDLE_INACTIVE_TIME_SECS,
+	.ap_keepalive_max_idle_inactive_time_secs =
+		WMI_10X_VDEV_PARAM_AP_KEEPALIVE_MAX_IDLE_INACTIVE_TIME_SECS,
+	.ap_keepalive_max_unresponsive_time_secs =
+		WMI_10X_VDEV_PARAM_AP_KEEPALIVE_MAX_UNRESPONSIVE_TIME_SECS,
+	.ap_enable_nawds = WMI_10X_VDEV_PARAM_AP_ENABLE_NAWDS,
+	.mcast2ucast_set = WMI_10X_VDEV_PARAM_MCAST2UCAST_SET,
+	.enable_rtscts = WMI_10X_VDEV_PARAM_ENABLE_RTSCTS,
+	.txbf = WMI_VDEV_PARAM_UNSUPPORTED,
+	.packet_powersave = WMI_VDEV_PARAM_UNSUPPORTED,
+	.drop_unencry = WMI_VDEV_PARAM_UNSUPPORTED,
+	.tx_encap_type = WMI_VDEV_PARAM_UNSUPPORTED,
+	.ap_detect_out_of_sync_sleeping_sta_time_secs =
+		WMI_10X_VDEV_PARAM_AP_DETECT_OUT_OF_SYNC_SLEEPING_STA_TIME_SECS,
+};
+
 int ath10k_wmi_wait_for_service_ready(struct ath10k *ar)
 {
 	int ret;
@@ -1751,9 +1869,11 @@ int ath10k_wmi_attach(struct ath10k *ar)
 	if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) {
 		ath10k_warn("Firmware 10.X is not yet supported\n");
 		ar->wmi.cmd = &wmi_10x_cmd_map;
+		ar->wmi.vdev_param = &wmi_10x_vdev_param_map;
 		ret = -ENOTSUPP;
 	} else {
 		ar->wmi.cmd = &wmi_cmd_map;
+		ar->wmi.vdev_param = &wmi_vdev_param_map;
 		ret = 0;
 	}
 
@@ -2516,11 +2636,18 @@ int ath10k_wmi_vdev_down(struct ath10k *ar, u32 vdev_id)
 }
 
 int ath10k_wmi_vdev_set_param(struct ath10k *ar, u32 vdev_id,
-			      enum wmi_vdev_param param_id, u32 param_value)
+			      u32 param_id, u32 param_value)
 {
 	struct wmi_vdev_set_param_cmd *cmd;
 	struct sk_buff *skb;
 
+	if (param_id == WMI_VDEV_PARAM_UNSUPPORTED) {
+		ath10k_dbg(ATH10K_DBG_WMI,
+			   "vdev param %d not supported by firmware\n",
+			    param_id);
+		return -EINVAL;
+	}
+
 	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
 	if (!skb)
 		return -ENOMEM;
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 5383f7eddce7..15185867f6e1 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -2695,6 +2695,61 @@ enum wmi_rate_preamble {
 /* Value to disable fixed rate setting */
 #define WMI_FIXED_RATE_NONE    (0xff)
 
+struct wmi_vdev_param_map {
+	u32 rts_threshold;
+	u32 fragmentation_threshold;
+	u32 beacon_interval;
+	u32 listen_interval;
+	u32 multicast_rate;
+	u32 mgmt_tx_rate;
+	u32 slot_time;
+	u32 preamble;
+	u32 swba_time;
+	u32 wmi_vdev_stats_update_period;
+	u32 wmi_vdev_pwrsave_ageout_time;
+	u32 wmi_vdev_host_swba_interval;
+	u32 dtim_period;
+	u32 wmi_vdev_oc_scheduler_air_time_limit;
+	u32 wds;
+	u32 atim_window;
+	u32 bmiss_count_max;
+	u32 bmiss_first_bcnt;
+	u32 bmiss_final_bcnt;
+	u32 feature_wmm;
+	u32 chwidth;
+	u32 chextoffset;
+	u32 disable_htprotection;
+	u32 sta_quickkickout;
+	u32 mgmt_rate;
+	u32 protection_mode;
+	u32 fixed_rate;
+	u32 sgi;
+	u32 ldpc;
+	u32 tx_stbc;
+	u32 rx_stbc;
+	u32 intra_bss_fwd;
+	u32 def_keyid;
+	u32 nss;
+	u32 bcast_data_rate;
+	u32 mcast_data_rate;
+	u32 mcast_indicate;
+	u32 dhcp_indicate;
+	u32 unknown_dest_indicate;
+	u32 ap_keepalive_min_idle_inactive_time_secs;
+	u32 ap_keepalive_max_idle_inactive_time_secs;
+	u32 ap_keepalive_max_unresponsive_time_secs;
+	u32 ap_enable_nawds;
+	u32 mcast2ucast_set;
+	u32 enable_rtscts;
+	u32 txbf;
+	u32 packet_powersave;
+	u32 drop_unencry;
+	u32 tx_encap_type;
+	u32 ap_detect_out_of_sync_sleeping_sta_time_secs;
+};
+
+#define WMI_VDEV_PARAM_UNSUPPORTED 0
+
 /* the definition of different VDEV parameters */
 enum wmi_vdev_param {
 	/* RTS Threshold */
@@ -2826,6 +2881,121 @@ enum wmi_vdev_param {
 	WMI_VDEV_PARAM_TX_ENCAP_TYPE,
 };
 
+/* the definition of different VDEV parameters */
+enum wmi_10x_vdev_param {
+	/* RTS Threshold */
+	WMI_10X_VDEV_PARAM_RTS_THRESHOLD = 0x1,
+	/* Fragmentation threshold */
+	WMI_10X_VDEV_PARAM_FRAGMENTATION_THRESHOLD,
+	/* beacon interval in TUs */
+	WMI_10X_VDEV_PARAM_BEACON_INTERVAL,
+	/* Listen interval in TUs */
+	WMI_10X_VDEV_PARAM_LISTEN_INTERVAL,
+	/* muticast rate in Mbps */
+	WMI_10X_VDEV_PARAM_MULTICAST_RATE,
+	/* management frame rate in Mbps */
+	WMI_10X_VDEV_PARAM_MGMT_TX_RATE,
+	/* slot time (long vs short) */
+	WMI_10X_VDEV_PARAM_SLOT_TIME,
+	/* preamble (long vs short) */
+	WMI_10X_VDEV_PARAM_PREAMBLE,
+	/* SWBA time (time before tbtt in msec) */
+	WMI_10X_VDEV_PARAM_SWBA_TIME,
+	/* time period for updating VDEV stats */
+	WMI_10X_VDEV_STATS_UPDATE_PERIOD,
+	/* age out time in msec for frames queued for station in power save */
+	WMI_10X_VDEV_PWRSAVE_AGEOUT_TIME,
+	/*
+	 * Host SWBA interval (time in msec before tbtt for SWBA event
+	 * generation).
+	 */
+	WMI_10X_VDEV_HOST_SWBA_INTERVAL,
+	/* DTIM period (specified in units of num beacon intervals) */
+	WMI_10X_VDEV_PARAM_DTIM_PERIOD,
+	/*
+	 * scheduler air time limit for this VDEV. used by off chan
+	 * scheduler.
+	 */
+	WMI_10X_VDEV_OC_SCHEDULER_AIR_TIME_LIMIT,
+	/* enable/dsiable WDS for this VDEV  */
+	WMI_10X_VDEV_PARAM_WDS,
+	/* ATIM Window */
+	WMI_10X_VDEV_PARAM_ATIM_WINDOW,
+	/* BMISS max */
+	WMI_10X_VDEV_PARAM_BMISS_COUNT_MAX,
+	/* WMM enables/disabled */
+	WMI_10X_VDEV_PARAM_FEATURE_WMM,
+	/* Channel width */
+	WMI_10X_VDEV_PARAM_CHWIDTH,
+	/* Channel Offset */
+	WMI_10X_VDEV_PARAM_CHEXTOFFSET,
+	/* Disable HT Protection */
+	WMI_10X_VDEV_PARAM_DISABLE_HTPROTECTION,
+	/* Quick STA Kickout */
+	WMI_10X_VDEV_PARAM_STA_QUICKKICKOUT,
+	/* Rate to be used with Management frames */
+	WMI_10X_VDEV_PARAM_MGMT_RATE,
+	/* Protection Mode */
+	WMI_10X_VDEV_PARAM_PROTECTION_MODE,
+	/* Fixed rate setting */
+	WMI_10X_VDEV_PARAM_FIXED_RATE,
+	/* Short GI Enable/Disable */
+	WMI_10X_VDEV_PARAM_SGI,
+	/* Enable LDPC */
+	WMI_10X_VDEV_PARAM_LDPC,
+	/* Enable Tx STBC */
+	WMI_10X_VDEV_PARAM_TX_STBC,
+	/* Enable Rx STBC */
+	WMI_10X_VDEV_PARAM_RX_STBC,
+	/* Intra BSS forwarding  */
+	WMI_10X_VDEV_PARAM_INTRA_BSS_FWD,
+	/* Setting Default xmit key for Vdev */
+	WMI_10X_VDEV_PARAM_DEF_KEYID,
+	/* NSS width */
+	WMI_10X_VDEV_PARAM_NSS,
+	/* Set the custom rate for the broadcast data frames */
+	WMI_10X_VDEV_PARAM_BCAST_DATA_RATE,
+	/* Set the custom rate (rate-code) for multicast data frames */
+	WMI_10X_VDEV_PARAM_MCAST_DATA_RATE,
+	/* Tx multicast packet indicate Enable/Disable */
+	WMI_10X_VDEV_PARAM_MCAST_INDICATE,
+	/* Tx DHCP packet indicate Enable/Disable */
+	WMI_10X_VDEV_PARAM_DHCP_INDICATE,
+	/* Enable host inspection of Tx unicast packet to unknown destination */
+	WMI_10X_VDEV_PARAM_UNKNOWN_DEST_INDICATE,
+
+	/* The minimum amount of time AP begins to consider STA inactive */
+	WMI_10X_VDEV_PARAM_AP_KEEPALIVE_MIN_IDLE_INACTIVE_TIME_SECS,
+
+	/*
+	 * An associated STA is considered inactive when there is no recent
+	 * TX/RX activity and no downlink frames are buffered for it. Once a
+	 * STA exceeds the maximum idle inactive time, the AP will send an
+	 * 802.11 data-null as a keep alive to verify the STA is still
+	 * associated. If the STA does ACK the data-null, or if the data-null
+	 * is buffered and the STA does not retrieve it, the STA will be
+	 * considered unresponsive
+	 * (see WMI_10X_VDEV_AP_KEEPALIVE_MAX_UNRESPONSIVE_TIME_SECS).
+	 */
+	WMI_10X_VDEV_PARAM_AP_KEEPALIVE_MAX_IDLE_INACTIVE_TIME_SECS,
+
+	/*
+	 * An associated STA is considered unresponsive if there is no recent
+	 * TX/RX activity and downlink frames are buffered for it. Once a STA
+	 * exceeds the maximum unresponsive time, the AP will send a
+	 * WMI_10X_STA_KICKOUT event to the host so the STA can be deleted. */
+	WMI_10X_VDEV_PARAM_AP_KEEPALIVE_MAX_UNRESPONSIVE_TIME_SECS,
+
+	/* Enable NAWDS : MCAST INSPECT Enable, NAWDS Flag set */
+	WMI_10X_VDEV_PARAM_AP_ENABLE_NAWDS,
+
+	WMI_10X_VDEV_PARAM_MCAST2UCAST_SET,
+	/* Enable/Disable RTS-CTS */
+	WMI_10X_VDEV_PARAM_ENABLE_RTSCTS,
+
+	WMI_10X_VDEV_PARAM_AP_DETECT_OUT_OF_SYNC_SLEEPING_STA_TIME_SECS,
+};
+
 /* slot time long */
 #define WMI_VDEV_SLOT_TIME_LONG		0x1
 /* slot time short */
@@ -3648,7 +3818,7 @@ int ath10k_wmi_vdev_up(struct ath10k *ar, u32 vdev_id, u32 aid,
 		       const u8 *bssid);
 int ath10k_wmi_vdev_down(struct ath10k *ar, u32 vdev_id);
 int ath10k_wmi_vdev_set_param(struct ath10k *ar, u32 vdev_id,
-			      enum wmi_vdev_param param_id, u32 param_value);
+			      u32 param_id, u32 param_value);
 int ath10k_wmi_vdev_install_key(struct ath10k *ar,
 				const struct wmi_vdev_install_key_arg *arg);
 int ath10k_wmi_peer_create(struct ath10k *ar, u32 vdev_id,
-- 
cgit 


From 226a339ba8f3c53914e640d250feaf4321cfcd04 Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Thu, 26 Sep 2013 17:47:16 +0200
Subject: ath10k: introduce dynamic pdev parameters

This is done exactly the same way as for vdev.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.h |   1 +
 drivers/net/wireless/ath/ath10k/mac.c  |  10 +--
 drivers/net/wireless/ath/ath10k/wmi.c  | 115 ++++++++++++++++++++++++-
 drivers/net/wireless/ath/ath10k/wmi.h  | 148 ++++++++++++++++++++++++++++++++-
 4 files changed, 265 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 124e7246bb44..d5da8a9f6974 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -120,6 +120,7 @@ struct ath10k_wmi {
 	wait_queue_head_t tx_credits_wq;
 	struct wmi_cmd_map *cmd;
 	struct wmi_vdev_param_map *vdev_param;
+	struct wmi_pdev_param_map *pdev_param;
 
 	u32 num_mem_chunks;
 	struct ath10k_mem_chunk mem_chunks[ATH10K_MAX_MEM_REQS];
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index b5ae01de684e..8684e03b393e 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1882,12 +1882,12 @@ static int ath10k_start(struct ieee80211_hw *hw)
 	else if (ar->state == ATH10K_STATE_RESTARTING)
 		ar->state = ATH10K_STATE_RESTARTED;
 
-	ret = ath10k_wmi_pdev_set_param(ar, WMI_PDEV_PARAM_PMF_QOS, 1);
+	ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->pmf_qos, 1);
 	if (ret)
 		ath10k_warn("could not enable WMI_PDEV_PARAM_PMF_QOS (%d)\n",
 			    ret);
 
-	ret = ath10k_wmi_pdev_set_param(ar, WMI_PDEV_PARAM_DYNAMIC_BW, 0);
+	ret = ath10k_wmi_pdev_set_param(ar, ar->wmi.pdev_param->dynamic_bw, 0);
 	if (ret)
 		ath10k_warn("could not init WMI_PDEV_PARAM_DYNAMIC_BW (%d)\n",
 			    ret);
@@ -2209,7 +2209,7 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 	struct ath10k *ar = hw->priv;
 	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
 	int ret = 0;
-	u32 vdev_param;
+	u32 vdev_param, pdev_param;
 
 	mutex_lock(&ar->conf_mutex);
 
@@ -2235,8 +2235,8 @@ static void ath10k_bss_info_changed(struct ieee80211_hw *hw,
 			   "vdev %d set beacon tx mode to staggered\n",
 			   arvif->vdev_id);
 
-		ret = ath10k_wmi_pdev_set_param(ar,
-						WMI_PDEV_PARAM_BEACON_TX_MODE,
+		pdev_param = ar->wmi.pdev_param->beacon_tx_mode;
+		ret = ath10k_wmi_pdev_set_param(ar, pdev_param,
 						WMI_BEACON_STAGGERED_MODE);
 		if (ret)
 			ath10k_warn("Failed to set beacon mode for VDEV: %d\n",
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 89a8cb862c81..3460cf446846 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -383,6 +383,111 @@ static struct wmi_vdev_param_map wmi_10x_vdev_param_map = {
 		WMI_10X_VDEV_PARAM_AP_DETECT_OUT_OF_SYNC_SLEEPING_STA_TIME_SECS,
 };
 
+static struct wmi_pdev_param_map wmi_pdev_param_map = {
+	.tx_chain_mask = WMI_PDEV_PARAM_TX_CHAIN_MASK,
+	.rx_chain_mask = WMI_PDEV_PARAM_RX_CHAIN_MASK,
+	.txpower_limit2g = WMI_PDEV_PARAM_TXPOWER_LIMIT2G,
+	.txpower_limit5g = WMI_PDEV_PARAM_TXPOWER_LIMIT5G,
+	.txpower_scale = WMI_PDEV_PARAM_TXPOWER_SCALE,
+	.beacon_gen_mode = WMI_PDEV_PARAM_BEACON_GEN_MODE,
+	.beacon_tx_mode = WMI_PDEV_PARAM_BEACON_TX_MODE,
+	.resmgr_offchan_mode = WMI_PDEV_PARAM_RESMGR_OFFCHAN_MODE,
+	.protection_mode = WMI_PDEV_PARAM_PROTECTION_MODE,
+	.dynamic_bw = WMI_PDEV_PARAM_DYNAMIC_BW,
+	.non_agg_sw_retry_th = WMI_PDEV_PARAM_NON_AGG_SW_RETRY_TH,
+	.agg_sw_retry_th = WMI_PDEV_PARAM_AGG_SW_RETRY_TH,
+	.sta_kickout_th = WMI_PDEV_PARAM_STA_KICKOUT_TH,
+	.ac_aggrsize_scaling = WMI_PDEV_PARAM_AC_AGGRSIZE_SCALING,
+	.ltr_enable = WMI_PDEV_PARAM_LTR_ENABLE,
+	.ltr_ac_latency_be = WMI_PDEV_PARAM_LTR_AC_LATENCY_BE,
+	.ltr_ac_latency_bk = WMI_PDEV_PARAM_LTR_AC_LATENCY_BK,
+	.ltr_ac_latency_vi = WMI_PDEV_PARAM_LTR_AC_LATENCY_VI,
+	.ltr_ac_latency_vo = WMI_PDEV_PARAM_LTR_AC_LATENCY_VO,
+	.ltr_ac_latency_timeout = WMI_PDEV_PARAM_LTR_AC_LATENCY_TIMEOUT,
+	.ltr_sleep_override = WMI_PDEV_PARAM_LTR_SLEEP_OVERRIDE,
+	.ltr_rx_override = WMI_PDEV_PARAM_LTR_RX_OVERRIDE,
+	.ltr_tx_activity_timeout = WMI_PDEV_PARAM_LTR_TX_ACTIVITY_TIMEOUT,
+	.l1ss_enable = WMI_PDEV_PARAM_L1SS_ENABLE,
+	.dsleep_enable = WMI_PDEV_PARAM_DSLEEP_ENABLE,
+	.pcielp_txbuf_flush = WMI_PDEV_PARAM_PCIELP_TXBUF_FLUSH,
+	.pcielp_txbuf_watermark = WMI_PDEV_PARAM_PCIELP_TXBUF_TMO_EN,
+	.pcielp_txbuf_tmo_en = WMI_PDEV_PARAM_PCIELP_TXBUF_TMO_EN,
+	.pcielp_txbuf_tmo_value = WMI_PDEV_PARAM_PCIELP_TXBUF_TMO_VALUE,
+	.pdev_stats_update_period = WMI_PDEV_PARAM_PDEV_STATS_UPDATE_PERIOD,
+	.vdev_stats_update_period = WMI_PDEV_PARAM_VDEV_STATS_UPDATE_PERIOD,
+	.peer_stats_update_period = WMI_PDEV_PARAM_PEER_STATS_UPDATE_PERIOD,
+	.bcnflt_stats_update_period = WMI_PDEV_PARAM_BCNFLT_STATS_UPDATE_PERIOD,
+	.pmf_qos = WMI_PDEV_PARAM_PMF_QOS,
+	.arp_ac_override = WMI_PDEV_PARAM_ARP_AC_OVERRIDE,
+	.arpdhcp_ac_override = WMI_PDEV_PARAM_UNSUPPORTED,
+	.dcs = WMI_PDEV_PARAM_DCS,
+	.ani_enable = WMI_PDEV_PARAM_ANI_ENABLE,
+	.ani_poll_period = WMI_PDEV_PARAM_ANI_POLL_PERIOD,
+	.ani_listen_period = WMI_PDEV_PARAM_ANI_LISTEN_PERIOD,
+	.ani_ofdm_level = WMI_PDEV_PARAM_ANI_OFDM_LEVEL,
+	.ani_cck_level = WMI_PDEV_PARAM_ANI_CCK_LEVEL,
+	.dyntxchain = WMI_PDEV_PARAM_DYNTXCHAIN,
+	.proxy_sta = WMI_PDEV_PARAM_PROXY_STA,
+	.idle_ps_config = WMI_PDEV_PARAM_IDLE_PS_CONFIG,
+	.power_gating_sleep = WMI_PDEV_PARAM_POWER_GATING_SLEEP,
+	.fast_channel_reset = WMI_PDEV_PARAM_UNSUPPORTED,
+	.burst_dur = WMI_PDEV_PARAM_UNSUPPORTED,
+	.burst_enable = WMI_PDEV_PARAM_UNSUPPORTED,
+};
+
+static struct wmi_pdev_param_map wmi_10x_pdev_param_map = {
+	.tx_chain_mask = WMI_10X_PDEV_PARAM_TX_CHAIN_MASK,
+	.rx_chain_mask = WMI_10X_PDEV_PARAM_RX_CHAIN_MASK,
+	.txpower_limit2g = WMI_10X_PDEV_PARAM_TXPOWER_LIMIT2G,
+	.txpower_limit5g = WMI_10X_PDEV_PARAM_TXPOWER_LIMIT5G,
+	.txpower_scale = WMI_10X_PDEV_PARAM_TXPOWER_SCALE,
+	.beacon_gen_mode = WMI_10X_PDEV_PARAM_BEACON_GEN_MODE,
+	.beacon_tx_mode = WMI_10X_PDEV_PARAM_BEACON_TX_MODE,
+	.resmgr_offchan_mode = WMI_10X_PDEV_PARAM_RESMGR_OFFCHAN_MODE,
+	.protection_mode = WMI_10X_PDEV_PARAM_PROTECTION_MODE,
+	.dynamic_bw = WMI_10X_PDEV_PARAM_DYNAMIC_BW,
+	.non_agg_sw_retry_th = WMI_10X_PDEV_PARAM_NON_AGG_SW_RETRY_TH,
+	.agg_sw_retry_th = WMI_10X_PDEV_PARAM_AGG_SW_RETRY_TH,
+	.sta_kickout_th = WMI_10X_PDEV_PARAM_STA_KICKOUT_TH,
+	.ac_aggrsize_scaling = WMI_10X_PDEV_PARAM_AC_AGGRSIZE_SCALING,
+	.ltr_enable = WMI_10X_PDEV_PARAM_LTR_ENABLE,
+	.ltr_ac_latency_be = WMI_10X_PDEV_PARAM_LTR_AC_LATENCY_BE,
+	.ltr_ac_latency_bk = WMI_10X_PDEV_PARAM_LTR_AC_LATENCY_BK,
+	.ltr_ac_latency_vi = WMI_10X_PDEV_PARAM_LTR_AC_LATENCY_VI,
+	.ltr_ac_latency_vo = WMI_10X_PDEV_PARAM_LTR_AC_LATENCY_VO,
+	.ltr_ac_latency_timeout = WMI_10X_PDEV_PARAM_LTR_AC_LATENCY_TIMEOUT,
+	.ltr_sleep_override = WMI_10X_PDEV_PARAM_LTR_SLEEP_OVERRIDE,
+	.ltr_rx_override = WMI_10X_PDEV_PARAM_LTR_RX_OVERRIDE,
+	.ltr_tx_activity_timeout = WMI_10X_PDEV_PARAM_LTR_TX_ACTIVITY_TIMEOUT,
+	.l1ss_enable = WMI_10X_PDEV_PARAM_L1SS_ENABLE,
+	.dsleep_enable = WMI_10X_PDEV_PARAM_DSLEEP_ENABLE,
+	.pcielp_txbuf_flush = WMI_PDEV_PARAM_UNSUPPORTED,
+	.pcielp_txbuf_watermark = WMI_PDEV_PARAM_UNSUPPORTED,
+	.pcielp_txbuf_tmo_en = WMI_PDEV_PARAM_UNSUPPORTED,
+	.pcielp_txbuf_tmo_value = WMI_PDEV_PARAM_UNSUPPORTED,
+	.pdev_stats_update_period = WMI_10X_PDEV_PARAM_PDEV_STATS_UPDATE_PERIOD,
+	.vdev_stats_update_period = WMI_10X_PDEV_PARAM_VDEV_STATS_UPDATE_PERIOD,
+	.peer_stats_update_period = WMI_10X_PDEV_PARAM_PEER_STATS_UPDATE_PERIOD,
+	.bcnflt_stats_update_period =
+				WMI_10X_PDEV_PARAM_BCNFLT_STATS_UPDATE_PERIOD,
+	.pmf_qos = WMI_10X_PDEV_PARAM_PMF_QOS,
+	.arp_ac_override = WMI_PDEV_PARAM_UNSUPPORTED,
+	.arpdhcp_ac_override = WMI_10X_PDEV_PARAM_ARPDHCP_AC_OVERRIDE,
+	.dcs = WMI_10X_PDEV_PARAM_DCS,
+	.ani_enable = WMI_10X_PDEV_PARAM_ANI_ENABLE,
+	.ani_poll_period = WMI_10X_PDEV_PARAM_ANI_POLL_PERIOD,
+	.ani_listen_period = WMI_10X_PDEV_PARAM_ANI_LISTEN_PERIOD,
+	.ani_ofdm_level = WMI_10X_PDEV_PARAM_ANI_OFDM_LEVEL,
+	.ani_cck_level = WMI_10X_PDEV_PARAM_ANI_CCK_LEVEL,
+	.dyntxchain = WMI_10X_PDEV_PARAM_DYNTXCHAIN,
+	.proxy_sta = WMI_PDEV_PARAM_UNSUPPORTED,
+	.idle_ps_config = WMI_PDEV_PARAM_UNSUPPORTED,
+	.power_gating_sleep = WMI_PDEV_PARAM_UNSUPPORTED,
+	.fast_channel_reset = WMI_10X_PDEV_PARAM_FAST_CHANNEL_RESET,
+	.burst_dur = WMI_10X_PDEV_PARAM_BURST_DUR,
+	.burst_enable = WMI_10X_PDEV_PARAM_BURST_ENABLE,
+};
+
 int ath10k_wmi_wait_for_service_ready(struct ath10k *ar)
 {
 	int ret;
@@ -1870,10 +1975,12 @@ int ath10k_wmi_attach(struct ath10k *ar)
 		ath10k_warn("Firmware 10.X is not yet supported\n");
 		ar->wmi.cmd = &wmi_10x_cmd_map;
 		ar->wmi.vdev_param = &wmi_10x_vdev_param_map;
+		ar->wmi.pdev_param = &wmi_10x_pdev_param_map;
 		ret = -ENOTSUPP;
 	} else {
 		ar->wmi.cmd = &wmi_cmd_map;
 		ar->wmi.vdev_param = &wmi_vdev_param_map;
+		ar->wmi.pdev_param = &wmi_pdev_param_map;
 		ret = 0;
 	}
 
@@ -2009,12 +2116,16 @@ int ath10k_wmi_pdev_resume_target(struct ath10k *ar)
 	return ath10k_wmi_cmd_send(ar, skb, ar->wmi.cmd->pdev_resume_cmdid);
 }
 
-int ath10k_wmi_pdev_set_param(struct ath10k *ar, enum wmi_pdev_param id,
-			      u32 value)
+int ath10k_wmi_pdev_set_param(struct ath10k *ar, u32 id, u32 value)
 {
 	struct wmi_pdev_set_param_cmd *cmd;
 	struct sk_buff *skb;
 
+	if (id == WMI_PDEV_PARAM_UNSUPPORTED) {
+		ath10k_warn("pdev param %d not supported by firmware\n", id);
+		return -EINVAL;
+	}
+
 	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
 	if (!skb)
 		return -ENOMEM;
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 15185867f6e1..80ab2f0fbe50 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -2072,6 +2072,60 @@ struct wmi_csa_event {
 #define VDEV_DEFAULT_STATS_UPDATE_PERIOD    500
 #define PEER_DEFAULT_STATS_UPDATE_PERIOD    500
 
+struct wmi_pdev_param_map {
+	u32 tx_chain_mask;
+	u32 rx_chain_mask;
+	u32 txpower_limit2g;
+	u32 txpower_limit5g;
+	u32 txpower_scale;
+	u32 beacon_gen_mode;
+	u32 beacon_tx_mode;
+	u32 resmgr_offchan_mode;
+	u32 protection_mode;
+	u32 dynamic_bw;
+	u32 non_agg_sw_retry_th;
+	u32 agg_sw_retry_th;
+	u32 sta_kickout_th;
+	u32 ac_aggrsize_scaling;
+	u32 ltr_enable;
+	u32 ltr_ac_latency_be;
+	u32 ltr_ac_latency_bk;
+	u32 ltr_ac_latency_vi;
+	u32 ltr_ac_latency_vo;
+	u32 ltr_ac_latency_timeout;
+	u32 ltr_sleep_override;
+	u32 ltr_rx_override;
+	u32 ltr_tx_activity_timeout;
+	u32 l1ss_enable;
+	u32 dsleep_enable;
+	u32 pcielp_txbuf_flush;
+	u32 pcielp_txbuf_watermark;
+	u32 pcielp_txbuf_tmo_en;
+	u32 pcielp_txbuf_tmo_value;
+	u32 pdev_stats_update_period;
+	u32 vdev_stats_update_period;
+	u32 peer_stats_update_period;
+	u32 bcnflt_stats_update_period;
+	u32 pmf_qos;
+	u32 arp_ac_override;
+	u32 arpdhcp_ac_override;
+	u32 dcs;
+	u32 ani_enable;
+	u32 ani_poll_period;
+	u32 ani_listen_period;
+	u32 ani_ofdm_level;
+	u32 ani_cck_level;
+	u32 dyntxchain;
+	u32 proxy_sta;
+	u32 idle_ps_config;
+	u32 power_gating_sleep;
+	u32 fast_channel_reset;
+	u32 burst_dur;
+	u32 burst_enable;
+};
+
+#define WMI_PDEV_PARAM_UNSUPPORTED 0
+
 enum wmi_pdev_param {
 	/* TX chian mask */
 	WMI_PDEV_PARAM_TX_CHAIN_MASK = 0x1,
@@ -2171,6 +2225,97 @@ enum wmi_pdev_param {
 	WMI_PDEV_PARAM_POWER_GATING_SLEEP,
 };
 
+enum wmi_10x_pdev_param {
+	/* TX chian mask */
+	WMI_10X_PDEV_PARAM_TX_CHAIN_MASK = 0x1,
+	/* RX chian mask */
+	WMI_10X_PDEV_PARAM_RX_CHAIN_MASK,
+	/* TX power limit for 2G Radio */
+	WMI_10X_PDEV_PARAM_TXPOWER_LIMIT2G,
+	/* TX power limit for 5G Radio */
+	WMI_10X_PDEV_PARAM_TXPOWER_LIMIT5G,
+	/* TX power scale */
+	WMI_10X_PDEV_PARAM_TXPOWER_SCALE,
+	/* Beacon generation mode . 0: host, 1: target   */
+	WMI_10X_PDEV_PARAM_BEACON_GEN_MODE,
+	/* Beacon generation mode . 0: staggered 1: bursted   */
+	WMI_10X_PDEV_PARAM_BEACON_TX_MODE,
+	/*
+	 * Resource manager off chan mode .
+	 * 0: turn off off chan mode. 1: turn on offchan mode
+	 */
+	WMI_10X_PDEV_PARAM_RESMGR_OFFCHAN_MODE,
+	/*
+	 * Protection mode:
+	 * 0: no protection 1:use CTS-to-self 2: use RTS/CTS
+	 */
+	WMI_10X_PDEV_PARAM_PROTECTION_MODE,
+	/* Dynamic bandwidth 0: disable 1: enable */
+	WMI_10X_PDEV_PARAM_DYNAMIC_BW,
+	/* Non aggregrate/ 11g sw retry threshold.0-disable */
+	WMI_10X_PDEV_PARAM_NON_AGG_SW_RETRY_TH,
+	/* aggregrate sw retry threshold. 0-disable*/
+	WMI_10X_PDEV_PARAM_AGG_SW_RETRY_TH,
+	/* Station kickout threshold (non of consecutive failures).0-disable */
+	WMI_10X_PDEV_PARAM_STA_KICKOUT_TH,
+	/* Aggerate size scaling configuration per AC */
+	WMI_10X_PDEV_PARAM_AC_AGGRSIZE_SCALING,
+	/* LTR enable */
+	WMI_10X_PDEV_PARAM_LTR_ENABLE,
+	/* LTR latency for BE, in us */
+	WMI_10X_PDEV_PARAM_LTR_AC_LATENCY_BE,
+	/* LTR latency for BK, in us */
+	WMI_10X_PDEV_PARAM_LTR_AC_LATENCY_BK,
+	/* LTR latency for VI, in us */
+	WMI_10X_PDEV_PARAM_LTR_AC_LATENCY_VI,
+	/* LTR latency for VO, in us  */
+	WMI_10X_PDEV_PARAM_LTR_AC_LATENCY_VO,
+	/* LTR AC latency timeout, in ms */
+	WMI_10X_PDEV_PARAM_LTR_AC_LATENCY_TIMEOUT,
+	/* LTR platform latency override, in us */
+	WMI_10X_PDEV_PARAM_LTR_SLEEP_OVERRIDE,
+	/* LTR-RX override, in us */
+	WMI_10X_PDEV_PARAM_LTR_RX_OVERRIDE,
+	/* Tx activity timeout for LTR, in us */
+	WMI_10X_PDEV_PARAM_LTR_TX_ACTIVITY_TIMEOUT,
+	/* L1SS state machine enable */
+	WMI_10X_PDEV_PARAM_L1SS_ENABLE,
+	/* Deep sleep state machine enable */
+	WMI_10X_PDEV_PARAM_DSLEEP_ENABLE,
+	/* pdev level stats update period in ms */
+	WMI_10X_PDEV_PARAM_PDEV_STATS_UPDATE_PERIOD,
+	/* vdev level stats update period in ms */
+	WMI_10X_PDEV_PARAM_VDEV_STATS_UPDATE_PERIOD,
+	/* peer level stats update period in ms */
+	WMI_10X_PDEV_PARAM_PEER_STATS_UPDATE_PERIOD,
+	/* beacon filter status update period */
+	WMI_10X_PDEV_PARAM_BCNFLT_STATS_UPDATE_PERIOD,
+	/* QOS Mgmt frame protection MFP/PMF 0: disable, 1: enable */
+	WMI_10X_PDEV_PARAM_PMF_QOS,
+	/* Access category on which ARP and DHCP frames are sent */
+	WMI_10X_PDEV_PARAM_ARPDHCP_AC_OVERRIDE,
+	/* DCS configuration */
+	WMI_10X_PDEV_PARAM_DCS,
+	/* Enable/Disable ANI on target */
+	WMI_10X_PDEV_PARAM_ANI_ENABLE,
+	/* configure the ANI polling period */
+	WMI_10X_PDEV_PARAM_ANI_POLL_PERIOD,
+	/* configure the ANI listening period */
+	WMI_10X_PDEV_PARAM_ANI_LISTEN_PERIOD,
+	/* configure OFDM immunity level */
+	WMI_10X_PDEV_PARAM_ANI_OFDM_LEVEL,
+	/* configure CCK immunity level */
+	WMI_10X_PDEV_PARAM_ANI_CCK_LEVEL,
+	/* Enable/Disable CDD for 1x1 STAs in rate control module */
+	WMI_10X_PDEV_PARAM_DYNTXCHAIN,
+	/* Enable/Disable Fast channel reset*/
+	WMI_10X_PDEV_PARAM_FAST_CHANNEL_RESET,
+	/* Set Bursting DUR */
+	WMI_10X_PDEV_PARAM_BURST_DUR,
+	/* Set Bursting Enable*/
+	WMI_10X_PDEV_PARAM_BURST_ENABLE,
+};
+
 struct wmi_pdev_set_param_cmd {
 	__le32 param_id;
 	__le32 param_value;
@@ -3797,8 +3942,7 @@ int ath10k_wmi_pdev_suspend_target(struct ath10k *ar);
 int ath10k_wmi_pdev_resume_target(struct ath10k *ar);
 int ath10k_wmi_pdev_set_regdomain(struct ath10k *ar, u16 rd, u16 rd2g,
 				  u16 rd5g, u16 ctl2g, u16 ctl5g);
-int ath10k_wmi_pdev_set_param(struct ath10k *ar, enum wmi_pdev_param id,
-			      u32 value);
+int ath10k_wmi_pdev_set_param(struct ath10k *ar, u32 id, u32 value);
 int ath10k_wmi_cmd_init(struct ath10k *ar);
 int ath10k_wmi_start_scan(struct ath10k *ar, const struct wmi_start_scan_arg *);
 void ath10k_wmi_start_scan_init(struct ath10k *ar, struct wmi_start_scan_arg *);
-- 
cgit 


From 89b7e766c84020c06f842f390b18d62798dc5d06 Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Thu, 26 Sep 2013 17:47:17 +0200
Subject: ath10k: handle FW API differences for scan structures

The wmi_start_scan_cmd has an extra filed in our main
firmware track, reflact that to not have a mismatch in
case of 10.x track.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/wmi.c | 19 ++++++--
 drivers/net/wireless/ath/ath10k/wmi.h | 82 +++++++++++++++++++++++++++++++++++
 2 files changed, 97 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 3460cf446846..e7dc911c2130 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -2341,11 +2341,15 @@ int ath10k_wmi_cmd_init(struct ath10k *ar)
 	return ret;
 }
 
-static int ath10k_wmi_start_scan_calc_len(const struct wmi_start_scan_arg *arg)
+static int ath10k_wmi_start_scan_calc_len(struct ath10k *ar,
+					  const struct wmi_start_scan_arg *arg)
 {
 	int len;
 
-	len = sizeof(struct wmi_start_scan_cmd);
+	if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features))
+		len = sizeof(struct wmi_start_scan_cmd_10x);
+	else
+		len = sizeof(struct wmi_start_scan_cmd);
 
 	if (arg->ie_len) {
 		if (!arg->ie)
@@ -2405,7 +2409,7 @@ int ath10k_wmi_start_scan(struct ath10k *ar,
 	int len = 0;
 	int i;
 
-	len = ath10k_wmi_start_scan_calc_len(arg);
+	len = ath10k_wmi_start_scan_calc_len(ar, arg);
 	if (len < 0)
 		return len; /* len contains error code here */
 
@@ -2437,7 +2441,14 @@ int ath10k_wmi_start_scan(struct ath10k *ar,
 	cmd->scan_ctrl_flags    = __cpu_to_le32(arg->scan_ctrl_flags);
 
 	/* TLV list starts after fields included in the struct */
-	off = sizeof(*cmd);
+	/* There's just one filed that differes the two start_scan
+	 * structures - burst_duration, which we are not using btw,
+	   no point to make the split here, just shift the buffer to fit with
+	   given FW */
+	if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features))
+		off = sizeof(struct wmi_start_scan_cmd_10x);
+	else
+		off = sizeof(struct wmi_start_scan_cmd);
 
 	if (arg->n_channels) {
 		channels = (void *)skb->data + off;
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 80ab2f0fbe50..7692c14c2d16 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -1715,6 +1715,88 @@ struct wmi_start_scan_cmd {
 	 */
 } __packed;
 
+/* This is the definition from 10.X firmware branch */
+struct wmi_start_scan_cmd_10x {
+	/* Scan ID */
+	__le32 scan_id;
+
+	/* Scan requestor ID */
+	__le32 scan_req_id;
+
+	/* VDEV id(interface) that is requesting scan */
+	__le32 vdev_id;
+
+	/* Scan Priority, input to scan scheduler */
+	__le32 scan_priority;
+
+	/* Scan events subscription */
+	__le32 notify_scan_events;
+
+	/* dwell time in msec on active channels */
+	__le32 dwell_time_active;
+
+	/* dwell time in msec on passive channels */
+	__le32 dwell_time_passive;
+
+	/*
+	 * min time in msec on the BSS channel,only valid if atleast one
+	 * VDEV is active
+	 */
+	__le32 min_rest_time;
+
+	/*
+	 * max rest time in msec on the BSS channel,only valid if at least
+	 * one VDEV is active
+	 */
+	/*
+	 * the scanner will rest on the bss channel at least min_rest_time
+	 * after min_rest_time the scanner will start checking for tx/rx
+	 * activity on all VDEVs. if there is no activity the scanner will
+	 * switch to off channel. if there is activity the scanner will let
+	 * the radio on the bss channel until max_rest_time expires.at
+	 * max_rest_time scanner will switch to off channel irrespective of
+	 * activity. activity is determined by the idle_time parameter.
+	 */
+	__le32 max_rest_time;
+
+	/*
+	 * time before sending next set of probe requests.
+	 * The scanner keeps repeating probe requests transmission with
+	 * period specified by repeat_probe_time.
+	 * The number of probe requests specified depends on the ssid_list
+	 * and bssid_list
+	 */
+	__le32 repeat_probe_time;
+
+	/* time in msec between 2 consequetive probe requests with in a set. */
+	__le32 probe_spacing_time;
+
+	/*
+	 * data inactivity time in msec on bss channel that will be used by
+	 * scanner for measuring the inactivity.
+	 */
+	__le32 idle_time;
+
+	/* maximum time in msec allowed for scan  */
+	__le32 max_scan_time;
+
+	/*
+	 * delay in msec before sending first probe request after switching
+	 * to a channel
+	 */
+	__le32 probe_delay;
+
+	/* Scan control flags */
+	__le32 scan_ctrl_flags;
+
+	/*
+	 * TLV (tag length value )  paramerters follow the scan_cmd structure.
+	 * TLV can contain channel list, bssid list, ssid list and
+	 * ie. the TLV tags are defined above;
+	 */
+} __packed;
+
+
 struct wmi_ssid_arg {
 	int len;
 	const u8 *ssid;
-- 
cgit 


From ffde39ea61ea29fc57c15dbcfadbe545c2d3500f Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Wed, 25 Sep 2013 15:54:11 +0200
Subject: ARM: mmp: delete the custom GPIO header

The MMP sub-architecture appears to have a custom <mach/gpio.h>
for no reason whatsoever. The file became completely empty
after Haojian removed the remaining content in
commit 157d2644cb0c1e71a18baaffca56d2b1d0ebf10f
"ARM: pxa: change gpio to platform device".

Cc: Eric Miao <eric.y.miao@gmail.com>
Acked-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/Kconfig                      | 1 -
 arch/arm/mach-mmp/include/mach/gpio.h | 8 --------
 2 files changed, 9 deletions(-)
 delete mode 100644 arch/arm/mach-mmp/include/mach/gpio.h

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3f7714d8d2d2..3950a128973e 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -559,7 +559,6 @@ config ARCH_MMP
 	select GPIO_PXA
 	select IRQ_DOMAIN
 	select MULTI_IRQ_HANDLER
-	select NEED_MACH_GPIO_H
 	select PINCTRL
 	select PLAT_PXA
 	select SPARSE_IRQ
diff --git a/arch/arm/mach-mmp/include/mach/gpio.h b/arch/arm/mach-mmp/include/mach/gpio.h
deleted file mode 100644
index 13219ebf5128..000000000000
--- a/arch/arm/mach-mmp/include/mach/gpio.h
+++ /dev/null
@@ -1,8 +0,0 @@
-#ifndef __ASM_MACH_GPIO_H
-#define __ASM_MACH_GPIO_H
-
-#include <asm-generic/gpio.h>
-
-#include <mach/cputype.h>
-
-#endif /* __ASM_MACH_GPIO_H */
-- 
cgit 


From 88f718e3fa4d67f3a8dbe79a2f97d722323e4051 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Thu, 26 Sep 2013 10:04:49 +0200
Subject: ARM: pxa: delete the custom GPIO header

The PXA sub-architecture appears to have a custom <mach/gpio.h>
for no reason whatsoever. The file became completely empty
after Haojian removed the remaining content in
commit 157d2644cb0c1e71a18baaffca56d2b1d0ebf10f
"ARM: pxa: change gpio to platform device".

That commit added these two lines:

However it seems like deleting the file has no effect
whatsoever on the kernel compilation.

Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/Kconfig                      |  1 -
 arch/arm/mach-pxa/include/mach/gpio.h | 32 --------------------------------
 2 files changed, 33 deletions(-)
 delete mode 100644 arch/arm/mach-pxa/include/mach/gpio.h

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3950a128973e..1ced44456ad2 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -621,7 +621,6 @@ config ARCH_PXA
 	select GPIO_PXA
 	select HAVE_IDE
 	select MULTI_IRQ_HANDLER
-	select NEED_MACH_GPIO_H
 	select PLAT_PXA
 	select SPARSE_IRQ
 	help
diff --git a/arch/arm/mach-pxa/include/mach/gpio.h b/arch/arm/mach-pxa/include/mach/gpio.h
deleted file mode 100644
index 0248e433bc98..000000000000
--- a/arch/arm/mach-pxa/include/mach/gpio.h
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * arch/arm/mach-pxa/include/mach/gpio.h
- *
- * PXA GPIO wrappers for arch-neutral GPIO calls
- *
- * Written by Philipp Zabel <philipp.zabel@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#ifndef __ASM_ARCH_PXA_GPIO_H
-#define __ASM_ARCH_PXA_GPIO_H
-
-#include <asm-generic/gpio.h>
-
-#include <mach/irqs.h>
-#include <mach/hardware.h>
-
-#endif
-- 
cgit 


From 77966ad7b68112b1a536f994d78d88a9eaca25bc Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <b.brezillon@overkiz.com>
Date: Fri, 13 Sep 2013 09:45:33 +0200
Subject: pinctrl: at91: fix typos

Fix AT91_PINCTRL_DEBOUNCE_VAL dt macro typo.
Fix at91_pinctrl_mux_ops callback typos.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-at91.c     | 6 +++---
 include/dt-bindings/pinctrl/at91.h | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index f350fd2e170e..fae1b4d1d692 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -144,11 +144,11 @@ struct at91_pinctrl_mux_ops {
 	void (*mux_C_periph)(void __iomem *pio, unsigned mask);
 	void (*mux_D_periph)(void __iomem *pio, unsigned mask);
 	bool (*get_deglitch)(void __iomem *pio, unsigned pin);
-	void (*set_deglitch)(void __iomem *pio, unsigned mask, bool in_on);
+	void (*set_deglitch)(void __iomem *pio, unsigned mask, bool is_on);
 	bool (*get_debounce)(void __iomem *pio, unsigned pin, u32 *div);
-	void (*set_debounce)(void __iomem *pio, unsigned mask, bool in_on, u32 div);
+	void (*set_debounce)(void __iomem *pio, unsigned mask, bool is_on, u32 div);
 	bool (*get_pulldown)(void __iomem *pio, unsigned pin);
-	void (*set_pulldown)(void __iomem *pio, unsigned mask, bool in_on);
+	void (*set_pulldown)(void __iomem *pio, unsigned mask, bool is_on);
 	bool (*get_schmitt_trig)(void __iomem *pio, unsigned pin);
 	void (*disable_schmitt_trig)(void __iomem *pio, unsigned mask);
 	/* irq */
diff --git a/include/dt-bindings/pinctrl/at91.h b/include/dt-bindings/pinctrl/at91.h
index d7988b4d8af9..0fee6ff77ffc 100644
--- a/include/dt-bindings/pinctrl/at91.h
+++ b/include/dt-bindings/pinctrl/at91.h
@@ -16,7 +16,7 @@
 #define AT91_PINCTRL_PULL_DOWN		(1 << 3)
 #define AT91_PINCTRL_DIS_SCHMIT		(1 << 4)
 #define AT91_PINCTRL_DEBOUNCE		(1 << 16)
-#define AT91_PINCTRL_DEBOUNCE_VA(x)	(x << 17)
+#define AT91_PINCTRL_DEBOUNCE_VAL(x)	(x << 17)
 
 #define AT91_PINCTRL_PULL_UP_DEGLITCH	(AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DEGLITCH)
 
-- 
cgit 


From c8dba02e7d5552a360ee5839f828856dd3a827cd Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <b.brezillon@overkiz.com>
Date: Fri, 13 Sep 2013 09:47:22 +0200
Subject: pinctrl: at91: fix sam9x5 debounce/deglitch functions

Replace at91_mux_get_deglitch with at91_mux_pio3_get_deglitch when using
sam9x5 (pio3) IP.
at91_mux_get_deglitch only test the activation of the "Input Filter" which
may be overloaded by the activation of the "Input Filter Slow Clock" to use
the input filter as a debounce filter instead of a deglitch filter.

Fix at91_mux_pio3_get_debounce to test the activation of the Input Filter
before testing the activation of the debounce filter (Input Filter Slow
Clock depends on Input Filter).

Fix at91_mux_pio3_set_debounce function to avoid disabling the deglitch
filter ("Input Filter") when debounce filter is disabled.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-at91.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index fae1b4d1d692..8ed9be8b96b5 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -417,6 +417,14 @@ static void at91_mux_set_deglitch(void __iomem *pio, unsigned mask, bool is_on)
 	__raw_writel(mask, pio + (is_on ? PIO_IFER : PIO_IFDR));
 }
 
+static bool at91_mux_pio3_get_deglitch(void __iomem *pio, unsigned pin)
+{
+	if ((__raw_readl(pio + PIO_IFSR) >> pin) & 0x1)
+		return !((__raw_readl(pio + PIO_IFSCSR) >> pin) & 0x1);
+
+	return false;
+}
+
 static void at91_mux_pio3_set_deglitch(void __iomem *pio, unsigned mask, bool is_on)
 {
 	if (is_on)
@@ -428,7 +436,8 @@ static bool at91_mux_pio3_get_debounce(void __iomem *pio, unsigned pin, u32 *div
 {
 	*div = __raw_readl(pio + PIO_SCDR);
 
-	return (__raw_readl(pio + PIO_IFSCSR) >> pin) & 0x1;
+	return ((__raw_readl(pio + PIO_IFSR) >> pin) & 0x1) &&
+	       ((__raw_readl(pio + PIO_IFSCSR) >> pin) & 0x1);
 }
 
 static void at91_mux_pio3_set_debounce(void __iomem *pio, unsigned mask,
@@ -438,9 +447,8 @@ static void at91_mux_pio3_set_debounce(void __iomem *pio, unsigned mask,
 		__raw_writel(mask, pio + PIO_IFSCER);
 		__raw_writel(div & PIO_SCDR_DIV, pio + PIO_SCDR);
 		__raw_writel(mask, pio + PIO_IFER);
-	} else {
-		__raw_writel(mask, pio + PIO_IFDR);
-	}
+	} else
+		__raw_writel(mask, pio + PIO_IFSCDR);
 }
 
 static bool at91_mux_pio3_get_pulldown(void __iomem *pio, unsigned pin)
@@ -478,7 +486,7 @@ static struct at91_pinctrl_mux_ops at91sam9x5_ops = {
 	.mux_B_periph	= at91_mux_pio3_set_B_periph,
 	.mux_C_periph	= at91_mux_pio3_set_C_periph,
 	.mux_D_periph	= at91_mux_pio3_set_D_periph,
-	.get_deglitch	= at91_mux_get_deglitch,
+	.get_deglitch	= at91_mux_pio3_get_deglitch,
 	.set_deglitch	= at91_mux_pio3_set_deglitch,
 	.get_debounce	= at91_mux_pio3_get_debounce,
 	.set_debounce	= at91_mux_pio3_set_debounce,
-- 
cgit 


From 8040dd09c2ca7e70daf84f040beb3ced9602fce5 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 10 Sep 2013 11:19:55 +0200
Subject: ARM: ixp4xx: convert remaining users to use gpiolib

A few call sites inside mach-ixp4xx were still using the custom
ixp4xx GPIO API with gpio_line_* accessors, convert all these
to use the standard gpiolib functions instead. Also attempt to
request and label all GPIOs before use. Move the GPIO requests
to per-machine device_initcalls() so we are not dependent on the
GPIO chip to be available at machine_init time.

Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ixp4xx/dsmg600-setup.c | 65 +++++++++++++++++++++---------------
 arch/arm/mach-ixp4xx/ixdp425-setup.c |  8 +++--
 arch/arm/mach-ixp4xx/nas100d-setup.c | 49 ++++++++++++++++-----------
 arch/arm/mach-ixp4xx/nslu2-setup.c   | 17 +++++++---
 4 files changed, 85 insertions(+), 54 deletions(-)

diff --git a/arch/arm/mach-ixp4xx/dsmg600-setup.c b/arch/arm/mach-ixp4xx/dsmg600-setup.c
index 63de1b3fd06b..736dc692d540 100644
--- a/arch/arm/mach-ixp4xx/dsmg600-setup.c
+++ b/arch/arm/mach-ixp4xx/dsmg600-setup.c
@@ -26,6 +26,7 @@
 #include <linux/reboot.h>
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>
+#include <linux/gpio.h>
 
 #include <mach/hardware.h>
 
@@ -161,11 +162,8 @@ static struct platform_device *dsmg600_devices[] __initdata = {
 
 static void dsmg600_power_off(void)
 {
-	/* enable the pwr cntl gpio */
-	gpio_line_config(DSMG600_PO_GPIO, IXP4XX_GPIO_OUT);
-
-	/* poweroff */
-	gpio_line_set(DSMG600_PO_GPIO, IXP4XX_GPIO_HIGH);
+	/* enable the pwr cntl and drive it high */
+	gpio_direction_output(DSMG600_PO_GPIO, 1);
 }
 
 /* This is used to make sure the power-button pusher is serious.  The button
@@ -202,7 +200,7 @@ static void dsmg600_power_handler(unsigned long data)
 			ctrl_alt_del();
 
 			/* Change the state of the power LED to "blink" */
-			gpio_line_set(DSMG600_LED_PWR_GPIO, IXP4XX_GPIO_LOW);
+			gpio_set_value(DSMG600_LED_PWR_GPIO, 0);
 		} else {
 			power_button_countdown = PBUTTON_HOLDDOWN_COUNT;
 		}
@@ -228,6 +226,40 @@ static void __init dsmg600_timer_init(void)
     ixp4xx_timer_init();
 }
 
+static int __init dsmg600_gpio_init(void)
+{
+	if (!machine_is_dsmg600())
+		return 0;
+
+	gpio_request(DSMG600_RB_GPIO, "reset button");
+	if (request_irq(gpio_to_irq(DSMG600_RB_GPIO), &dsmg600_reset_handler,
+		IRQF_DISABLED | IRQF_TRIGGER_LOW,
+		"DSM-G600 reset button", NULL) < 0) {
+
+		printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
+			gpio_to_irq(DSMG600_RB_GPIO));
+	}
+
+	/*
+	 * The power button on the D-Link DSM-G600 is on GPIO 15, but
+	 * it cannot handle interrupts on that GPIO line.  So we'll
+	 * have to poll it with a kernel timer.
+	 */
+
+	/* Make sure that the power button GPIO is set up as an input */
+	gpio_request(DSMG600_PB_GPIO, "power button");
+	gpio_direction_input(DSMG600_PB_GPIO);
+	/* Request poweroff GPIO line */
+	gpio_request(DSMG600_PO_GPIO, "power off button");
+
+	/* Set the initial value for the power button IRQ handler */
+	power_button_countdown = PBUTTON_HOLDDOWN_COUNT;
+
+	mod_timer(&dsmg600_power_timer, jiffies + msecs_to_jiffies(500));
+	return 0;
+}
+device_initcall(dsmg600_gpio_init);
+
 static void __init dsmg600_init(void)
 {
 	ixp4xx_sys_init();
@@ -251,27 +283,6 @@ static void __init dsmg600_init(void)
 	platform_add_devices(dsmg600_devices, ARRAY_SIZE(dsmg600_devices));
 
 	pm_power_off = dsmg600_power_off;
-
-	if (request_irq(gpio_to_irq(DSMG600_RB_GPIO), &dsmg600_reset_handler,
-		IRQF_DISABLED | IRQF_TRIGGER_LOW,
-		"DSM-G600 reset button", NULL) < 0) {
-
-		printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
-			gpio_to_irq(DSMG600_RB_GPIO));
-	}
-
-	/* The power button on the D-Link DSM-G600 is on GPIO 15, but
-	 * it cannot handle interrupts on that GPIO line.  So we'll
-	 * have to poll it with a kernel timer.
-	 */
-
-	/* Make sure that the power button GPIO is set up as an input */
-	gpio_line_config(DSMG600_PB_GPIO, IXP4XX_GPIO_IN);
-
-	/* Set the initial value for the power button IRQ handler */
-	power_button_countdown = PBUTTON_HOLDDOWN_COUNT;
-
-	mod_timer(&dsmg600_power_timer, jiffies + msecs_to_jiffies(500));
 }
 
 MACHINE_START(DSMG600, "D-Link DSM-G600 RevA")
diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c
index 22d688b7d513..e7b8befa8729 100644
--- a/arch/arm/mach-ixp4xx/ixdp425-setup.c
+++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c
@@ -20,6 +20,7 @@
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
 #include <linux/delay.h>
+#include <linux/gpio.h>
 #include <asm/types.h>
 #include <asm/setup.h>
 #include <asm/memory.h>
@@ -80,10 +81,10 @@ ixdp425_flash_nand_cmd_ctrl(struct mtd_info *mtd, int cmd, unsigned int ctrl)
 
 	if (ctrl & NAND_CTRL_CHANGE) {
 		if (ctrl & NAND_NCE) {
-			gpio_line_set(IXDP425_NAND_NCE_PIN, IXP4XX_GPIO_LOW);
+			gpio_set_value(IXDP425_NAND_NCE_PIN, 0);
 			udelay(5);
 		} else
-			gpio_line_set(IXDP425_NAND_NCE_PIN, IXP4XX_GPIO_HIGH);
+			gpio_set_value(IXDP425_NAND_NCE_PIN, 1);
 
 		offset = (ctrl & NAND_CLE) ? IXDP425_NAND_CMD_BYTE : 0;
 		offset |= (ctrl & NAND_ALE) ? IXDP425_NAND_ADDR_BYTE : 0;
@@ -227,7 +228,8 @@ static void __init ixdp425_init(void)
 	ixdp425_flash_nand_resource.start = IXP4XX_EXP_BUS_BASE(3),
 	ixdp425_flash_nand_resource.end   = IXP4XX_EXP_BUS_BASE(3) + 0x10 - 1;
 
-	gpio_line_config(IXDP425_NAND_NCE_PIN, IXP4XX_GPIO_OUT);
+	gpio_request(IXDP425_NAND_NCE_PIN, "NAND NCE pin");
+	gpio_direction_output(IXDP425_NAND_NCE_PIN, 0);
 
 	/* Configure expansion bus for NAND Flash */
 	*IXP4XX_EXP_CS3 = IXP4XX_EXP_BUS_CS_EN |
diff --git a/arch/arm/mach-ixp4xx/nas100d-setup.c b/arch/arm/mach-ixp4xx/nas100d-setup.c
index ed667ce9f576..507cb5233537 100644
--- a/arch/arm/mach-ixp4xx/nas100d-setup.c
+++ b/arch/arm/mach-ixp4xx/nas100d-setup.c
@@ -184,11 +184,8 @@ static void nas100d_power_off(void)
 {
 	/* This causes the box to drop the power and go dead. */
 
-	/* enable the pwr cntl gpio */
-	gpio_line_config(NAS100D_PO_GPIO, IXP4XX_GPIO_OUT);
-
-	/* do the deed */
-	gpio_line_set(NAS100D_PO_GPIO, IXP4XX_GPIO_HIGH);
+	/* enable the pwr cntl gpio and assert power off */
+	gpio_direction_output(NAS100D_PO_GPIO, 1);
 }
 
 /* This is used to make sure the power-button pusher is serious.  The button
@@ -225,7 +222,7 @@ static void nas100d_power_handler(unsigned long data)
 			ctrl_alt_del();
 
 			/* Change the state of the power LED to "blink" */
-			gpio_line_set(NAS100D_LED_PWR_GPIO, IXP4XX_GPIO_LOW);
+			gpio_set_value(NAS100D_LED_PWR_GPIO, 0);
 		} else {
 			power_button_countdown = PBUTTON_HOLDDOWN_COUNT;
 		}
@@ -242,6 +239,33 @@ static irqreturn_t nas100d_reset_handler(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
+static int __init nas100d_gpio_init(void)
+{
+	if (!machine_is_nas100d())
+		return 0;
+
+	/*
+	 * The power button on the Iomega NAS100d is on GPIO 14, but
+	 * it cannot handle interrupts on that GPIO line.  So we'll
+	 * have to poll it with a kernel timer.
+	 */
+
+	/* Request the power off GPIO */
+	gpio_request(NAS100D_PO_GPIO, "power off");
+
+	/* Make sure that the power button GPIO is set up as an input */
+	gpio_request(NAS100D_PB_GPIO, "power button");
+	gpio_direction_input(NAS100D_PB_GPIO);
+
+	/* Set the initial value for the power button IRQ handler */
+	power_button_countdown = PBUTTON_HOLDDOWN_COUNT;
+
+	mod_timer(&nas100d_power_timer, jiffies + msecs_to_jiffies(500));
+
+	return 0;
+}
+device_initcall(nas100d_gpio_init);
+
 static void __init nas100d_init(void)
 {
 	uint8_t __iomem *f;
@@ -278,19 +302,6 @@ static void __init nas100d_init(void)
 			gpio_to_irq(NAS100D_RB_GPIO));
 	}
 
-	/* The power button on the Iomega NAS100d is on GPIO 14, but
-	 * it cannot handle interrupts on that GPIO line.  So we'll
-	 * have to poll it with a kernel timer.
-	 */
-
-	/* Make sure that the power button GPIO is set up as an input */
-	gpio_line_config(NAS100D_PB_GPIO, IXP4XX_GPIO_IN);
-
-	/* Set the initial value for the power button IRQ handler */
-	power_button_countdown = PBUTTON_HOLDDOWN_COUNT;
-
-	mod_timer(&nas100d_power_timer, jiffies + msecs_to_jiffies(500));
-
 	/*
 	 * Map in a portion of the flash and read the MAC address.
 	 * Since it is stored in BE in the flash itself, we need to
diff --git a/arch/arm/mach-ixp4xx/nslu2-setup.c b/arch/arm/mach-ixp4xx/nslu2-setup.c
index 7e55236c26ea..ba5f1cda2a9d 100644
--- a/arch/arm/mach-ixp4xx/nslu2-setup.c
+++ b/arch/arm/mach-ixp4xx/nslu2-setup.c
@@ -197,11 +197,8 @@ static void nslu2_power_off(void)
 {
 	/* This causes the box to drop the power and go dead. */
 
-	/* enable the pwr cntl gpio */
-	gpio_line_config(NSLU2_PO_GPIO, IXP4XX_GPIO_OUT);
-
-	/* do the deed */
-	gpio_line_set(NSLU2_PO_GPIO, IXP4XX_GPIO_HIGH);
+	/* enable the pwr cntl gpio and assert power off */
+	gpio_direction_output(NSLU2_PO_GPIO, 1);
 }
 
 static irqreturn_t nslu2_power_handler(int irq, void *dev_id)
@@ -223,6 +220,16 @@ static irqreturn_t nslu2_reset_handler(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
+static int __init nslu2_gpio_init(void)
+{
+	if (!machine_is_nslu2())
+		return 0;
+
+	/* Request the power off GPIO */
+	return gpio_request(NSLU2_PO_GPIO, "power off");
+}
+device_initcall(nslu2_gpio_init);
+
 static void __init nslu2_timer_init(void)
 {
     /* The xtal on this machine is non-standard. */
-- 
cgit 


From e9c9fc2315ad7a57af1a5124ad911870b60d9bd0 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 10 Sep 2013 12:53:03 +0200
Subject: input: misc: ixp4-beeper: switch to use gpiolib

The platform using this beeper has support for gpiolib, so there
is no point to use the custom gpio_line* API. A strange ambiguity
where a line was first set as input and then driven high was
solved by first driving the line high as output and then switch
it to input.

Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/input/misc/ixp4xx-beeper.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/input/misc/ixp4xx-beeper.c b/drivers/input/misc/ixp4xx-beeper.c
index f34beb228d36..f14afd09e34d 100644
--- a/drivers/input/misc/ixp4xx-beeper.c
+++ b/drivers/input/misc/ixp4xx-beeper.c
@@ -20,6 +20,7 @@
 #include <linux/delay.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
+#include <linux/gpio.h>
 #include <mach/hardware.h>
 
 MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
@@ -35,15 +36,12 @@ static void ixp4xx_spkr_control(unsigned int pin, unsigned int count)
 
 	spin_lock_irqsave(&beep_lock, flags);
 
-	 if (count) {
-		gpio_line_config(pin, IXP4XX_GPIO_OUT);
-		gpio_line_set(pin, IXP4XX_GPIO_LOW);
-
+	if (count) {
+		gpio_direction_output(pin, 0);
 		*IXP4XX_OSRT2 = (count & ~IXP4XX_OST_RELOAD_MASK) | IXP4XX_OST_ENABLE;
 	} else {
-		gpio_line_config(pin, IXP4XX_GPIO_IN);
-		gpio_line_set(pin, IXP4XX_GPIO_HIGH);
-
+		gpio_direction_output(pin, 1);
+		gpio_direction_input(pin);
 		*IXP4XX_OSRT2 = 0;
 	}
 
-- 
cgit 


From b22973d0ecfcf499179870599b0f6e0712ff0a14 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 10 Sep 2013 13:06:57 +0200
Subject: input: misc: ixp4-beeper: use gpiolib strictly

Request and free the GPIO line used for the beeper properly.
Then use the gpiolib API to flip the output of the GPIO pin
instead of relying on hacks to poke the register bits.

Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/input/misc/ixp4xx-beeper.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/input/misc/ixp4xx-beeper.c b/drivers/input/misc/ixp4xx-beeper.c
index f14afd09e34d..17ccba88d636 100644
--- a/drivers/input/misc/ixp4xx-beeper.c
+++ b/drivers/input/misc/ixp4xx-beeper.c
@@ -76,11 +76,13 @@ static int ixp4xx_spkr_event(struct input_dev *dev, unsigned int type, unsigned
 
 static irqreturn_t ixp4xx_spkr_interrupt(int irq, void *dev_id)
 {
+	unsigned int pin = (unsigned int) dev_id;
+
 	/* clear interrupt */
 	*IXP4XX_OSST = IXP4XX_OSST_TIMER_2_PEND;
 
 	/* flip the beeper output */
-	*IXP4XX_GPIO_GPOUTR ^= (1 << (unsigned int) dev_id);
+	gpio_set_value(pin, !gpio_get_value(pin));
 
 	return IRQ_HANDLED;
 }
@@ -108,11 +110,15 @@ static int ixp4xx_spkr_probe(struct platform_device *dev)
 	input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
 	input_dev->event = ixp4xx_spkr_event;
 
+	err = gpio_request(dev->id, "ixp4-beeper");
+	if (err)
+		goto err_free_device;
+
 	err = request_irq(IRQ_IXP4XX_TIMER2, &ixp4xx_spkr_interrupt,
 			  IRQF_NO_SUSPEND, "ixp4xx-beeper",
 			  (void *) dev->id);
 	if (err)
-		goto err_free_device;
+		goto err_free_gpio;
 
 	err = input_register_device(input_dev);
 	if (err)
@@ -124,6 +130,8 @@ static int ixp4xx_spkr_probe(struct platform_device *dev)
 
  err_free_irq:
 	free_irq(IRQ_IXP4XX_TIMER2, (void *)dev->id);
+ err_free_gpio:
+	gpio_free(dev->id);
  err_free_device:
 	input_free_device(input_dev);
 
@@ -142,6 +150,7 @@ static int ixp4xx_spkr_remove(struct platform_device *dev)
 	ixp4xx_spkr_control(pin, 0);
 
 	free_irq(IRQ_IXP4XX_TIMER2, (void *)dev->id);
+	gpio_free(dev->id);
 
 	return 0;
 }
-- 
cgit 


From dc6ab07d8f158b6c0a86fc412215692b28632c23 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 10 Sep 2013 13:15:18 +0200
Subject: ptp: switch to use gpiolib

This platform supports gpiolib, so remove the custom API use
and replace with calls to gpiolib. Also request the GPIO before
starting to use it.

Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Cc: netdev@vger.kernel.org
Acked-by: Richard Cochran <richardcochran@gmail.com>
Acked-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/ptp/ptp_ixp46x.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/ptp/ptp_ixp46x.c b/drivers/ptp/ptp_ixp46x.c
index d49b85164fd2..4a08727fcaf3 100644
--- a/drivers/ptp/ptp_ixp46x.c
+++ b/drivers/ptp/ptp_ixp46x.c
@@ -259,8 +259,15 @@ static struct ixp_clock ixp_clock;
 static int setup_interrupt(int gpio)
 {
 	int irq;
+	int err;
 
-	gpio_line_config(gpio, IXP4XX_GPIO_IN);
+	err = gpio_request(gpio, "ixp4-ptp");
+	if (err)
+		return err;
+
+	err = gpio_direction_input(gpio);
+	if (err)
+		return err;
 
 	irq = gpio_to_irq(gpio);
 
-- 
cgit 


From b336cb29ae1b564d9368495f9d89e2e9bdc6023e Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 10 Sep 2013 13:30:10 +0200
Subject: staging: media/lirc: switch to use gpiolib

The lirc serial module has special hooks to work with NSLU2,
switch these over to use gpiolib, as that is available on the
ixp4 platform.

Not even compile tested as there is no way to select this
driver from menuconfig on the ixp4 platform.

Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/staging/media/lirc/lirc_serial.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/media/lirc/lirc_serial.c b/drivers/staging/media/lirc/lirc_serial.c
index af08e677b60f..f6bc4c91ab35 100644
--- a/drivers/staging/media/lirc/lirc_serial.c
+++ b/drivers/staging/media/lirc/lirc_serial.c
@@ -67,7 +67,7 @@
 #include <linux/delay.h>
 #include <linux/poll.h>
 #include <linux/platform_device.h>
-
+#include <linux/gpio.h>
 #include <linux/io.h>
 #include <linux/irq.h>
 #include <linux/fcntl.h>
@@ -321,7 +321,7 @@ static void on(void)
 	 * status LED and ground
 	 */
 	if (type == LIRC_NSLU2) {
-		gpio_line_set(NSLU2_LED_GRN, IXP4XX_GPIO_LOW);
+		gpio_set_value(NSLU2_LED_GRN, 0);
 		return;
 	}
 #endif
@@ -335,7 +335,7 @@ static void off(void)
 {
 #ifdef CONFIG_LIRC_SERIAL_NSLU2
 	if (type == LIRC_NSLU2) {
-		gpio_line_set(NSLU2_LED_GRN, IXP4XX_GPIO_HIGH);
+		gpio_set_value(NSLU2_LED_GRN, 1);
 		return;
 	}
 #endif
@@ -839,6 +839,16 @@ static int lirc_serial_probe(struct platform_device *dev)
 {
 	int i, nlow, nhigh, result;
 
+#ifdef CONFIG_LIRC_SERIAL_NSLU2
+	/* This GPIO is used for a LED on the NSLU2 */
+	result = devm_gpio_request(dev, NSLU2_LED_GRN, "lirc-serial");
+	if (result)
+		return result;
+	result = gpio_direction_output(NSLU2_LED_GRN, 0);
+	if (result)
+		return result;
+#endif
+
 	result = request_irq(irq, irq_handler,
 			     (share_irq ? IRQF_SHARED : 0),
 			     LIRC_DRIVER_NAME, (void *)&hardware);
-- 
cgit 


From 81ded3c11eeb167c38406247914533872a82db8c Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 10 Sep 2013 13:39:03 +0200
Subject: ARM: ixp4: delete irq_to_gpio

This dangerous function is not used in the kernel, so let's
just delete it.

Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ixp4xx/common.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
index 5327decde5a0..8708ac8f3614 100644
--- a/arch/arm/mach-ixp4xx/common.c
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -117,17 +117,6 @@ static int ixp4xx_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
 	return -EINVAL;
 }
 
-int irq_to_gpio(unsigned int irq)
-{
-	int gpio = (irq < 32) ? irq2gpio[irq] : -EINVAL;
-
-	if (gpio == -1)
-		return -EINVAL;
-
-	return gpio;
-}
-EXPORT_SYMBOL(irq_to_gpio);
-
 static int ixp4xx_set_irq_type(struct irq_data *d, unsigned int type)
 {
 	int line = irq2gpio[d->irq];
-- 
cgit 


From 098e30f6558f8950ed851e874d08bab91c9d4be7 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 10 Sep 2013 14:10:13 +0200
Subject: ARM: ixp4xx: stop broadcasting the custom GPIO API

Now that these custom GPIO accessors are only used from the
gpio chip in this machine, move the code out of the include
file and right next to the gpiochip implementation.

Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ixp4xx/common.c                | 38 +++++++++++++++++++++++++++
 arch/arm/mach-ixp4xx/include/mach/platform.h | 39 ----------------------------
 2 files changed, 38 insertions(+), 39 deletions(-)

diff --git a/arch/arm/mach-ixp4xx/common.c b/arch/arm/mach-ixp4xx/common.c
index 8708ac8f3614..9edaf4734fa8 100644
--- a/arch/arm/mach-ixp4xx/common.c
+++ b/arch/arm/mach-ixp4xx/common.c
@@ -81,6 +81,44 @@ void __init ixp4xx_map_io(void)
   	iotable_init(ixp4xx_io_desc, ARRAY_SIZE(ixp4xx_io_desc));
 }
 
+/*
+ * GPIO-functions
+ */
+/*
+ * The following converted to the real HW bits the gpio_line_config
+ */
+/* GPIO pin types */
+#define IXP4XX_GPIO_OUT 		0x1
+#define IXP4XX_GPIO_IN  		0x2
+
+/* GPIO signal types */
+#define IXP4XX_GPIO_LOW			0
+#define IXP4XX_GPIO_HIGH		1
+
+/* GPIO Clocks */
+#define IXP4XX_GPIO_CLK_0		14
+#define IXP4XX_GPIO_CLK_1		15
+
+static void gpio_line_config(u8 line, u32 direction)
+{
+	if (direction == IXP4XX_GPIO_IN)
+		*IXP4XX_GPIO_GPOER |= (1 << line);
+	else
+		*IXP4XX_GPIO_GPOER &= ~(1 << line);
+}
+
+static void gpio_line_get(u8 line, int *value)
+{
+	*value = (*IXP4XX_GPIO_GPINR >> line) & 0x1;
+}
+
+static void gpio_line_set(u8 line, int value)
+{
+	if (value == IXP4XX_GPIO_HIGH)
+	    *IXP4XX_GPIO_GPOUTR |= (1 << line);
+	else if (value == IXP4XX_GPIO_LOW)
+	    *IXP4XX_GPIO_GPOUTR &= ~(1 << line);
+}
 
 /*************************************************************************
  * IXP4xx chipset IRQ handling
diff --git a/arch/arm/mach-ixp4xx/include/mach/platform.h b/arch/arm/mach-ixp4xx/include/mach/platform.h
index 4c4c6a6f4526..75c4c6572ad0 100644
--- a/arch/arm/mach-ixp4xx/include/mach/platform.h
+++ b/arch/arm/mach-ixp4xx/include/mach/platform.h
@@ -131,44 +131,5 @@ struct pci_sys_data;
 extern int ixp4xx_setup(int nr, struct pci_sys_data *sys);
 extern struct pci_ops ixp4xx_ops;
 
-/*
- * GPIO-functions
- */
-/*
- * The following converted to the real HW bits the gpio_line_config
- */
-/* GPIO pin types */
-#define IXP4XX_GPIO_OUT 		0x1
-#define IXP4XX_GPIO_IN  		0x2
-
-/* GPIO signal types */
-#define IXP4XX_GPIO_LOW			0
-#define IXP4XX_GPIO_HIGH		1
-
-/* GPIO Clocks */
-#define IXP4XX_GPIO_CLK_0		14
-#define IXP4XX_GPIO_CLK_1		15
-
-static inline void gpio_line_config(u8 line, u32 direction)
-{
-	if (direction == IXP4XX_GPIO_IN)
-		*IXP4XX_GPIO_GPOER |= (1 << line);
-	else
-		*IXP4XX_GPIO_GPOER &= ~(1 << line);
-}
-
-static inline void gpio_line_get(u8 line, int *value)
-{
-	*value = (*IXP4XX_GPIO_GPINR >> line) & 0x1;
-}
-
-static inline void gpio_line_set(u8 line, int value)
-{
-	if (value == IXP4XX_GPIO_HIGH)
-	    *IXP4XX_GPIO_GPOUTR |= (1 << line);
-	else if (value == IXP4XX_GPIO_LOW)
-	    *IXP4XX_GPIO_GPOUTR &= ~(1 << line);
-}
-
 #endif // __ASSEMBLY__
 
-- 
cgit 


From 2467f1102dd117d4276498d30bb255796db7171c Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <b.brezillon@overkiz.com>
Date: Tue, 27 Aug 2013 15:26:05 +0200
Subject: ARM: at91/at91-pinctrl documentation: add missing sam9x5 compatible
 string

Add missing "atmel,at91sam9x5-pinctrl" compatible string to the
documentation.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt
index 7ccae490ff6d..02ab5ab198a4 100644
--- a/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/atmel,at91-pinctrl.txt
@@ -18,7 +18,7 @@ mode) this pin can work on and the 'config' configures various pad settings
 such as pull-up, multi drive, etc.
 
 Required properties for iomux controller:
-- compatible: "atmel,at91rm9200-pinctrl"
+- compatible: "atmel,at91rm9200-pinctrl" or "atmel,at91sam9x5-pinctrl"
 - atmel,mux-mask: array of mask (periph per bank) to describe if a pin can be
   configured in this periph mode. All the periph and bank need to be describe.
 
-- 
cgit 


From c8690d6d2957ed060c1cba4cde3ec41e3829651b Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Tue, 24 Sep 2013 15:46:11 +0800
Subject: pinctrl: adi2: Convert to devm_ioremap_resource

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-adi2.c | 38 ++++++--------------------------------
 1 file changed, 6 insertions(+), 32 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-adi2.c b/drivers/pinctrl/pinctrl-adi2.c
index 7a24e59b4138..f2aa8773f4e3 100644
--- a/drivers/pinctrl/pinctrl-adi2.c
+++ b/drivers/pinctrl/pinctrl-adi2.c
@@ -855,22 +855,9 @@ static int adi_gpio_pint_probe(struct platform_device *pdev)
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(dev, "Invalid mem resource\n");
-		return -ENODEV;
-	}
-
-	if (!devm_request_mem_region(dev, res->start, resource_size(res),
-				     pdev->name)) {
-		dev_err(dev, "Region already claimed\n");
-		return -EBUSY;
-	}
-
-	pint->base = devm_ioremap(dev, res->start, resource_size(res));
-	if (!pint->base) {
-		dev_err(dev, "Could not ioremap\n");
-		return -ENOMEM;
-	}
+	pint->base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(pint->base))
+		return PTR_ERR(pint->base);
 
 	pint->regs = (struct gpio_pint_regs *)pint->base;
 
@@ -984,22 +971,9 @@ static int adi_gpio_probe(struct platform_device *pdev)
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(dev, "Invalid mem resource\n");
-		return -ENODEV;
-	}
-
-	if (!devm_request_mem_region(dev, res->start, resource_size(res),
-				     pdev->name)) {
-		dev_err(dev, "Region already claimed\n");
-		return -EBUSY;
-	}
-
-	port->base = devm_ioremap(dev, res->start, resource_size(res));
-	if (!port->base) {
-		dev_err(dev, "Could not ioremap\n");
-		return -ENOMEM;
-	}
+	port->base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(port->base))
+		return PTR_ERR(port->base);
 
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (!res)
-- 
cgit 


From fe4315c3b0cbd4ae5a0b7fcf42c265ed03e27d7a Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Tue, 24 Sep 2013 15:47:41 +0800
Subject: pinctrl: adi2: Fix dead lock in adi_gpio_direction_output

Current code hold port->lock spinlock and then try to grab the lock again
in adi_gpio_set_value(). Fix it.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-adi2.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-adi2.c b/drivers/pinctrl/pinctrl-adi2.c
index f2aa8773f4e3..8089fda00427 100644
--- a/drivers/pinctrl/pinctrl-adi2.c
+++ b/drivers/pinctrl/pinctrl-adi2.c
@@ -776,10 +776,11 @@ static int adi_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
 	struct gpio_port_t *regs = port->regs;
 	unsigned long flags;
 
+	adi_gpio_set_value(chip, offset, value);
+
 	spin_lock_irqsave(&port->lock, flags);
 
 	writew(readw(&regs->inen) & ~(1 << offset), &regs->inen);
-	adi_gpio_set_value(chip, offset, value);
 	writew(1 << offset, &regs->dir_set);
 
 	spin_unlock_irqrestore(&port->lock, flags);
-- 
cgit 


From b1922a519e0788518d64abe7ec37d5de30e42305 Mon Sep 17 00:00:00 2001
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Date: Wed, 25 Sep 2013 15:27:50 -0400
Subject: xen/mmu: Correct PAT MST setting.

Jan Beulich spotted that the PAT MSR settings in the Xen public
document that "the first (PAT6) column was wrong across the
board, and the column for PAT7 was missing altogether."

This updates it to be in sync.

CC: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
---
 arch/x86/xen/mmu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index fdc3ba28ca38..c9631e73a090 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -468,8 +468,8 @@ PV_CALLEE_SAVE_REGS_THUNK(xen_pgd_val);
  * 3        PCD PWT      UC       UC     UC
  * 4    PAT              WB       WC     WB
  * 5    PAT     PWT      WC       WP     WT
- * 6    PAT PCD          UC-      UC     UC-
- * 7    PAT PCD PWT      UC       UC     UC
+ * 6    PAT PCD          UC-      rsv    UC-
+ * 7    PAT PCD PWT      UC       rsv    UC
  */
 
 void xen_set_pat(u64 pat)
-- 
cgit 


From f4fade12d506e14867a2b0a5e2f7aaf227297d8b Mon Sep 17 00:00:00 2001
From: Rhyland Klein <rklein@nvidia.com>
Date: Thu, 26 Sep 2013 13:01:43 -0400
Subject: spi/tegra114: Correct support for cs_change

The tegra114 driver wasn't currently handling the cs_change
functionality. cs_change is meant to invert the decisions of whether
or not to deactivate CS after each transfer. Without cs_change, after
every transfer (other than the last in the message) the normal behavior
is to leave CS active. For the last transfer, normally CS is
deactivated when the transfer is complete.

With cs_change set on a transfer (other than last one) CS would be
deactivated and the next transfer would need to activate it again. If
cs_change was set on the last tranfer in a message, then CS would be
left active when the message compeleted.

Also, this builds in logic so that if a different device tries to start
a transfer while CS is active from a different device, it will abort the
previous transfer and start a new one for the new device.

This splits tegra_spi_start_transfer_one into 2 functions, the new one
being tegra_spi_setup_transfer_one. The setup function is safe to call
on all transfers, sets up for the transfer, and handles the special case
of the first transfer in a message. In this special case, it needs to
know whether or not it needs to activate CS.

This work was based on the spi-atmel driver.

Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-tegra114.c | 85 ++++++++++++++++++++++++++++++++++++----------
 1 file changed, 68 insertions(+), 17 deletions(-)

diff --git a/drivers/spi/spi-tegra114.c b/drivers/spi/spi-tegra114.c
index 145dd435483b..64ca86c806e5 100644
--- a/drivers/spi/spi-tegra114.c
+++ b/drivers/spi/spi-tegra114.c
@@ -182,6 +182,7 @@ struct tegra_spi_data {
 	u32					cur_speed;
 
 	struct spi_device			*cur_spi;
+	struct spi_device			*cs_control;
 	unsigned				cur_pos;
 	unsigned				cur_len;
 	unsigned				words_per_32bit;
@@ -676,15 +677,12 @@ static void tegra_spi_deinit_dma_param(struct tegra_spi_data *tspi,
 	dma_release_channel(dma_chan);
 }
 
-static int tegra_spi_start_transfer_one(struct spi_device *spi,
-		struct spi_transfer *t, bool is_first_of_msg,
-		bool is_single_xfer)
+static unsigned long tegra_spi_setup_transfer_one(struct spi_device *spi,
+		struct spi_transfer *t, bool is_first_of_msg)
 {
 	struct tegra_spi_data *tspi = spi_master_get_devdata(spi->master);
 	u32 speed = t->speed_hz;
 	u8 bits_per_word = t->bits_per_word;
-	unsigned total_fifo_words;
-	int ret;
 	unsigned long command1;
 	int req_mode;
 
@@ -698,7 +696,6 @@ static int tegra_spi_start_transfer_one(struct spi_device *spi,
 	tspi->cur_rx_pos = 0;
 	tspi->cur_tx_pos = 0;
 	tspi->curr_xfer = t;
-	total_fifo_words = tegra_spi_calculate_curr_xfer_param(spi, tspi, t);
 
 	if (is_first_of_msg) {
 		tegra_spi_clear_status(tspi);
@@ -717,7 +714,12 @@ static int tegra_spi_start_transfer_one(struct spi_device *spi,
 		else if (req_mode == SPI_MODE_3)
 			command1 |= SPI_CONTROL_MODE_3;
 
-		tegra_spi_writel(tspi, command1, SPI_COMMAND1);
+		if (tspi->cs_control) {
+			if (tspi->cs_control != spi)
+				tegra_spi_writel(tspi, command1, SPI_COMMAND1);
+			tspi->cs_control = NULL;
+		} else
+			tegra_spi_writel(tspi, command1, SPI_COMMAND1);
 
 		command1 |= SPI_CS_SW_HW;
 		if (spi->mode & SPI_CS_HIGH)
@@ -732,6 +734,18 @@ static int tegra_spi_start_transfer_one(struct spi_device *spi,
 		command1 |= SPI_BIT_LENGTH(bits_per_word - 1);
 	}
 
+	return command1;
+}
+
+static int tegra_spi_start_transfer_one(struct spi_device *spi,
+		struct spi_transfer *t, unsigned long command1)
+{
+	struct tegra_spi_data *tspi = spi_master_get_devdata(spi->master);
+	unsigned total_fifo_words;
+	int ret;
+
+	total_fifo_words = tegra_spi_calculate_curr_xfer_param(spi, tspi, t);
+
 	if (tspi->is_packed)
 		command1 |= SPI_PACKED;
 
@@ -803,29 +817,50 @@ static int tegra_spi_setup(struct spi_device *spi)
 	return 0;
 }
 
+static void tegra_spi_transfer_delay(int delay)
+{
+	if (!delay)
+		return;
+
+	if (delay >= 1000)
+		mdelay(delay / 1000);
+
+	udelay(delay % 1000);
+}
+
 static int tegra_spi_transfer_one_message(struct spi_master *master,
 			struct spi_message *msg)
 {
 	bool is_first_msg = true;
-	int single_xfer;
 	struct tegra_spi_data *tspi = spi_master_get_devdata(master);
 	struct spi_transfer *xfer;
 	struct spi_device *spi = msg->spi;
 	int ret;
+	bool skip = false;
 
 	msg->status = 0;
 	msg->actual_length = 0;
 
-	single_xfer = list_is_singular(&msg->transfers);
 	list_for_each_entry(xfer, &msg->transfers, transfer_list) {
+		unsigned long cmd1;
+
 		INIT_COMPLETION(tspi->xfer_completion);
-		ret = tegra_spi_start_transfer_one(spi, xfer,
-					is_first_msg, single_xfer);
+
+		cmd1 = tegra_spi_setup_transfer_one(spi, xfer, is_first_msg);
+
+		if (!xfer->len) {
+			ret = 0;
+			skip = true;
+			goto complete_xfer;
+		}
+
+		ret = tegra_spi_start_transfer_one(spi, xfer, cmd1);
 		if (ret < 0) {
 			dev_err(tspi->dev,
 				"spi can not start transfer, err %d\n", ret);
-			goto exit;
+			goto complete_xfer;
 		}
+
 		is_first_msg = false;
 		ret = wait_for_completion_timeout(&tspi->xfer_completion,
 						SPI_DMA_TIMEOUT);
@@ -833,24 +868,40 @@ static int tegra_spi_transfer_one_message(struct spi_master *master,
 			dev_err(tspi->dev,
 				"spi trasfer timeout, err %d\n", ret);
 			ret = -EIO;
-			goto exit;
+			goto complete_xfer;
 		}
 
 		if (tspi->tx_status ||  tspi->rx_status) {
 			dev_err(tspi->dev, "Error in Transfer\n");
 			ret = -EIO;
-			goto exit;
+			goto complete_xfer;
 		}
 		msg->actual_length += xfer->len;
-		if (xfer->cs_change && xfer->delay_usecs) {
+
+complete_xfer:
+		if (ret < 0 || skip) {
 			tegra_spi_writel(tspi, tspi->def_command1_reg,
 					SPI_COMMAND1);
-			udelay(xfer->delay_usecs);
+			tegra_spi_transfer_delay(xfer->delay_usecs);
+			goto exit;
+		} else if (msg->transfers.prev == &xfer->transfer_list) {
+			/* This is the last transfer in message */
+			if (xfer->cs_change)
+				tspi->cs_control = spi;
+			else {
+				tegra_spi_writel(tspi, tspi->def_command1_reg,
+						SPI_COMMAND1);
+				tegra_spi_transfer_delay(xfer->delay_usecs);
+			}
+		} else if (xfer->cs_change) {
+			tegra_spi_writel(tspi, tspi->def_command1_reg,
+					SPI_COMMAND1);
+			tegra_spi_transfer_delay(xfer->delay_usecs);
 		}
+
 	}
 	ret = 0;
 exit:
-	tegra_spi_writel(tspi, tspi->def_command1_reg, SPI_COMMAND1);
 	msg->status = ret;
 	spi_finalize_current_message(master);
 	return ret;
-- 
cgit 


From c3df37c9380d70f19a9cb2de4c7d58d7822a4b35 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Fri, 27 Sep 2013 13:47:08 +0200
Subject: ASoC: adau1373: Convert to direct regmap usage

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/adau1373.c | 295 +++++++++++++++++++++++++++++++++++---------
 1 file changed, 235 insertions(+), 60 deletions(-)

diff --git a/sound/soc/codecs/adau1373.c b/sound/soc/codecs/adau1373.c
index 1aa10ddf3a61..c57c1f81a611 100644
--- a/sound/soc/codecs/adau1373.c
+++ b/sound/soc/codecs/adau1373.c
@@ -32,6 +32,7 @@ struct adau1373_dai {
 };
 
 struct adau1373 {
+	struct regmap *regmap;
 	struct adau1373_dai dais[3];
 };
 
@@ -152,37 +153,172 @@ struct adau1373 {
 #define ADAU1373_EP_CTRL_MICBIAS1_OFFSET 4
 #define ADAU1373_EP_CTRL_MICBIAS2_OFFSET 2
 
-static const uint8_t adau1373_default_regs[] = {
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x00 */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x10 */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x20 */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, /* 0x30 */
-	0x00, 0x00, 0x00, 0x80, 0x00, 0x01, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x0a, 0x0a, 0x0a, 0x00, /* 0x40 */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x08, 0x08, 0x08, 0x00, 0x00, 0x00, 0x00, /* 0x50 */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x60 */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0x70 */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x78, 0x18, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, /* 0x80 */
-	0x00, 0xc0, 0x88, 0x7a, 0xdf, 0x20, 0x00, 0x00,
-	0x78, 0x18, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, /* 0x90 */
-	0x00, 0xc0, 0x88, 0x7a, 0xdf, 0x20, 0x00, 0x00,
-	0x78, 0x18, 0x00, 0x00, 0x00, 0xc0, 0x00, 0x00, /* 0xa0 */
-	0x00, 0xc0, 0x88, 0x7a, 0xdf, 0x20, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0xb0 */
-	0xff, 0xff, 0xff, 0xff, 0xff, 0x1f, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xc0 */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 0xd0 */
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, /* 0xe0 */
-	0x00, 0x1f, 0x0f, 0x00, 0x00,
+static const struct reg_default adau1373_reg_defaults[] = {
+	{ ADAU1373_INPUT_MODE,		0x00 },
+	{ ADAU1373_AINL_CTRL(0),	0x00 },
+	{ ADAU1373_AINR_CTRL(0),	0x00 },
+	{ ADAU1373_AINL_CTRL(1),	0x00 },
+	{ ADAU1373_AINR_CTRL(1),	0x00 },
+	{ ADAU1373_AINL_CTRL(2),	0x00 },
+	{ ADAU1373_AINR_CTRL(2),	0x00 },
+	{ ADAU1373_AINL_CTRL(3),	0x00 },
+	{ ADAU1373_AINR_CTRL(3),	0x00 },
+	{ ADAU1373_LLINE_OUT(0),	0x00 },
+	{ ADAU1373_RLINE_OUT(0),	0x00 },
+	{ ADAU1373_LLINE_OUT(1),	0x00 },
+	{ ADAU1373_RLINE_OUT(1),	0x00 },
+	{ ADAU1373_LSPK_OUT,		0x00 },
+	{ ADAU1373_RSPK_OUT,		0x00 },
+	{ ADAU1373_LHP_OUT,		0x00 },
+	{ ADAU1373_RHP_OUT,		0x00 },
+	{ ADAU1373_ADC_GAIN,		0x00 },
+	{ ADAU1373_LADC_MIXER,		0x00 },
+	{ ADAU1373_RADC_MIXER,		0x00 },
+	{ ADAU1373_LLINE1_MIX,		0x00 },
+	{ ADAU1373_RLINE1_MIX,		0x00 },
+	{ ADAU1373_LLINE2_MIX,		0x00 },
+	{ ADAU1373_RLINE2_MIX,		0x00 },
+	{ ADAU1373_LSPK_MIX,		0x00 },
+	{ ADAU1373_RSPK_MIX,		0x00 },
+	{ ADAU1373_LHP_MIX,		0x00 },
+	{ ADAU1373_RHP_MIX,		0x00 },
+	{ ADAU1373_EP_MIX,		0x00 },
+	{ ADAU1373_HP_CTRL,		0x00 },
+	{ ADAU1373_HP_CTRL2,		0x00 },
+	{ ADAU1373_LS_CTRL,		0x00 },
+	{ ADAU1373_EP_CTRL,		0x00 },
+	{ ADAU1373_MICBIAS_CTRL1,	0x00 },
+	{ ADAU1373_MICBIAS_CTRL2,	0x00 },
+	{ ADAU1373_OUTPUT_CTRL,		0x00 },
+	{ ADAU1373_PWDN_CTRL1,		0x00 },
+	{ ADAU1373_PWDN_CTRL2,		0x00 },
+	{ ADAU1373_PWDN_CTRL3,		0x00 },
+	{ ADAU1373_DPLL_CTRL(0),	0x00 },
+	{ ADAU1373_PLL_CTRL1(0),	0x00 },
+	{ ADAU1373_PLL_CTRL2(0),	0x00 },
+	{ ADAU1373_PLL_CTRL3(0),	0x00 },
+	{ ADAU1373_PLL_CTRL4(0),	0x00 },
+	{ ADAU1373_PLL_CTRL5(0),	0x00 },
+	{ ADAU1373_PLL_CTRL6(0),	0x02 },
+	{ ADAU1373_DPLL_CTRL(1),	0x00 },
+	{ ADAU1373_PLL_CTRL1(1),	0x00 },
+	{ ADAU1373_PLL_CTRL2(1),	0x00 },
+	{ ADAU1373_PLL_CTRL3(1),	0x00 },
+	{ ADAU1373_PLL_CTRL4(1),	0x00 },
+	{ ADAU1373_PLL_CTRL5(1),	0x00 },
+	{ ADAU1373_PLL_CTRL6(1),	0x02 },
+	{ ADAU1373_HEADDECT,		0x00 },
+	{ ADAU1373_ADC_CTRL,		0x00 },
+	{ ADAU1373_CLK_SRC_DIV(0),	0x00 },
+	{ ADAU1373_CLK_SRC_DIV(1),	0x00 },
+	{ ADAU1373_DAI(0),		0x0a },
+	{ ADAU1373_DAI(1),		0x0a },
+	{ ADAU1373_DAI(2),		0x0a },
+	{ ADAU1373_BCLKDIV(0),		0x00 },
+	{ ADAU1373_BCLKDIV(1),		0x00 },
+	{ ADAU1373_BCLKDIV(2),		0x00 },
+	{ ADAU1373_SRC_RATIOA(0),	0x00 },
+	{ ADAU1373_SRC_RATIOB(0),	0x00 },
+	{ ADAU1373_SRC_RATIOA(1),	0x00 },
+	{ ADAU1373_SRC_RATIOB(1),	0x00 },
+	{ ADAU1373_SRC_RATIOA(2),	0x00 },
+	{ ADAU1373_SRC_RATIOB(2),	0x00 },
+	{ ADAU1373_DEEMP_CTRL,		0x00 },
+	{ ADAU1373_SRC_DAI_CTRL(0),	0x08 },
+	{ ADAU1373_SRC_DAI_CTRL(1),	0x08 },
+	{ ADAU1373_SRC_DAI_CTRL(2),	0x08 },
+	{ ADAU1373_DIN_MIX_CTRL(0),	0x00 },
+	{ ADAU1373_DIN_MIX_CTRL(1),	0x00 },
+	{ ADAU1373_DIN_MIX_CTRL(2),	0x00 },
+	{ ADAU1373_DIN_MIX_CTRL(3),	0x00 },
+	{ ADAU1373_DIN_MIX_CTRL(4),	0x00 },
+	{ ADAU1373_DOUT_MIX_CTRL(0),	0x00 },
+	{ ADAU1373_DOUT_MIX_CTRL(1),	0x00 },
+	{ ADAU1373_DOUT_MIX_CTRL(2),	0x00 },
+	{ ADAU1373_DOUT_MIX_CTRL(3),	0x00 },
+	{ ADAU1373_DOUT_MIX_CTRL(4),	0x00 },
+	{ ADAU1373_DAI_PBL_VOL(0),	0x00 },
+	{ ADAU1373_DAI_PBR_VOL(0),	0x00 },
+	{ ADAU1373_DAI_PBL_VOL(1),	0x00 },
+	{ ADAU1373_DAI_PBR_VOL(1),	0x00 },
+	{ ADAU1373_DAI_PBL_VOL(2),	0x00 },
+	{ ADAU1373_DAI_PBR_VOL(2),	0x00 },
+	{ ADAU1373_DAI_RECL_VOL(0),	0x00 },
+	{ ADAU1373_DAI_RECR_VOL(0),	0x00 },
+	{ ADAU1373_DAI_RECL_VOL(1),	0x00 },
+	{ ADAU1373_DAI_RECR_VOL(1),	0x00 },
+	{ ADAU1373_DAI_RECL_VOL(2),	0x00 },
+	{ ADAU1373_DAI_RECR_VOL(2),	0x00 },
+	{ ADAU1373_DAC1_PBL_VOL,	0x00 },
+	{ ADAU1373_DAC1_PBR_VOL,	0x00 },
+	{ ADAU1373_DAC2_PBL_VOL,	0x00 },
+	{ ADAU1373_DAC2_PBR_VOL,	0x00 },
+	{ ADAU1373_ADC_RECL_VOL,	0x00 },
+	{ ADAU1373_ADC_RECR_VOL,	0x00 },
+	{ ADAU1373_DMIC_RECL_VOL,	0x00 },
+	{ ADAU1373_DMIC_RECR_VOL,	0x00 },
+	{ ADAU1373_VOL_GAIN1,		0x00 },
+	{ ADAU1373_VOL_GAIN2,		0x00 },
+	{ ADAU1373_VOL_GAIN3,		0x00 },
+	{ ADAU1373_HPF_CTRL,		0x00 },
+	{ ADAU1373_BASS1,		0x00 },
+	{ ADAU1373_BASS2,		0x00 },
+	{ ADAU1373_DRC(0) + 0x0,	0x78 },
+	{ ADAU1373_DRC(0) + 0x1,	0x18 },
+	{ ADAU1373_DRC(0) + 0x2,	0x00 },
+	{ ADAU1373_DRC(0) + 0x3,	0x00 },
+	{ ADAU1373_DRC(0) + 0x4,	0x00 },
+	{ ADAU1373_DRC(0) + 0x5,	0xc0 },
+	{ ADAU1373_DRC(0) + 0x6,	0x00 },
+	{ ADAU1373_DRC(0) + 0x7,	0x00 },
+	{ ADAU1373_DRC(0) + 0x8,	0x00 },
+	{ ADAU1373_DRC(0) + 0x9,	0xc0 },
+	{ ADAU1373_DRC(0) + 0xa,	0x88 },
+	{ ADAU1373_DRC(0) + 0xb,	0x7a },
+	{ ADAU1373_DRC(0) + 0xc,	0xdf },
+	{ ADAU1373_DRC(0) + 0xd,	0x20 },
+	{ ADAU1373_DRC(0) + 0xe,	0x00 },
+	{ ADAU1373_DRC(0) + 0xf,	0x00 },
+	{ ADAU1373_DRC(1) + 0x0,	0x78 },
+	{ ADAU1373_DRC(1) + 0x1,	0x18 },
+	{ ADAU1373_DRC(1) + 0x2,	0x00 },
+	{ ADAU1373_DRC(1) + 0x3,	0x00 },
+	{ ADAU1373_DRC(1) + 0x4,	0x00 },
+	{ ADAU1373_DRC(1) + 0x5,	0xc0 },
+	{ ADAU1373_DRC(1) + 0x6,	0x00 },
+	{ ADAU1373_DRC(1) + 0x7,	0x00 },
+	{ ADAU1373_DRC(1) + 0x8,	0x00 },
+	{ ADAU1373_DRC(1) + 0x9,	0xc0 },
+	{ ADAU1373_DRC(1) + 0xa,	0x88 },
+	{ ADAU1373_DRC(1) + 0xb,	0x7a },
+	{ ADAU1373_DRC(1) + 0xc,	0xdf },
+	{ ADAU1373_DRC(1) + 0xd,	0x20 },
+	{ ADAU1373_DRC(1) + 0xe,	0x00 },
+	{ ADAU1373_DRC(1) + 0xf,	0x00 },
+	{ ADAU1373_DRC(2) + 0x0,	0x78 },
+	{ ADAU1373_DRC(2) + 0x1,	0x18 },
+	{ ADAU1373_DRC(2) + 0x2,	0x00 },
+	{ ADAU1373_DRC(2) + 0x3,	0x00 },
+	{ ADAU1373_DRC(2) + 0x4,	0x00 },
+	{ ADAU1373_DRC(2) + 0x5,	0xc0 },
+	{ ADAU1373_DRC(2) + 0x6,	0x00 },
+	{ ADAU1373_DRC(2) + 0x7,	0x00 },
+	{ ADAU1373_DRC(2) + 0x8,	0x00 },
+	{ ADAU1373_DRC(2) + 0x9,	0xc0 },
+	{ ADAU1373_DRC(2) + 0xa,	0x88 },
+	{ ADAU1373_DRC(2) + 0xb,	0x7a },
+	{ ADAU1373_DRC(2) + 0xc,	0xdf },
+	{ ADAU1373_DRC(2) + 0xd,	0x20 },
+	{ ADAU1373_DRC(2) + 0xe,	0x00 },
+	{ ADAU1373_DRC(2) + 0xf,	0x00 },
+	{ ADAU1373_3D_CTRL1,		0x00 },
+	{ ADAU1373_3D_CTRL2,		0x00 },
+	{ ADAU1373_FDSP_SEL1,		0x00 },
+	{ ADAU1373_FDSP_SEL2,		0x00 },
+	{ ADAU1373_FDSP_SEL2,		0x00 },
+	{ ADAU1373_FDSP_SEL4,		0x00 },
+	{ ADAU1373_DIGMICCTRL,		0x00 },
+	{ ADAU1373_DIGEN,		0x00 },
 };
 
 static const unsigned int adau1373_out_tlv[] = {
@@ -418,6 +554,7 @@ static int adau1373_pll_event(struct snd_soc_dapm_widget *w,
 	struct snd_kcontrol *kcontrol, int event)
 {
 	struct snd_soc_codec *codec = w->codec;
+	struct adau1373 *adau1373 = snd_soc_codec_get_drvdata(codec);
 	unsigned int pll_id = w->name[3] - '1';
 	unsigned int val;
 
@@ -426,7 +563,7 @@ static int adau1373_pll_event(struct snd_soc_dapm_widget *w,
 	else
 		val = 0;
 
-	snd_soc_update_bits(codec, ADAU1373_PLL_CTRL6(pll_id),
+	regmap_update_bits(adau1373->regmap, ADAU1373_PLL_CTRL6(pll_id),
 		ADAU1373_PLL_CTRL6_PLL_EN, val);
 
 	if (SND_SOC_DAPM_EVENT_ON(event))
@@ -938,7 +1075,7 @@ static int adau1373_hw_params(struct snd_pcm_substream *substream,
 
 	adau1373_dai->enable_src = (div != 0);
 
-	snd_soc_update_bits(codec, ADAU1373_BCLKDIV(dai->id),
+	regmap_update_bits(adau1373->regmap, ADAU1373_BCLKDIV(dai->id),
 		ADAU1373_BCLKDIV_SR_MASK | ADAU1373_BCLKDIV_BCLK_MASK,
 		(div << 2) | ADAU1373_BCLKDIV_64);
 
@@ -959,7 +1096,7 @@ static int adau1373_hw_params(struct snd_pcm_substream *substream,
 		return -EINVAL;
 	}
 
-	return snd_soc_update_bits(codec, ADAU1373_DAI(dai->id),
+	return regmap_update_bits(adau1373->regmap, ADAU1373_DAI(dai->id),
 			ADAU1373_DAI_WLEN_MASK, ctrl);
 }
 
@@ -1016,7 +1153,7 @@ static int adau1373_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 		return -EINVAL;
 	}
 
-	snd_soc_update_bits(codec, ADAU1373_DAI(dai->id),
+	regmap_update_bits(adau1373->regmap, ADAU1373_DAI(dai->id),
 		~ADAU1373_DAI_WLEN_MASK, ctrl);
 
 	return 0;
@@ -1039,7 +1176,7 @@ static int adau1373_set_dai_sysclk(struct snd_soc_dai *dai,
 	adau1373_dai->sysclk = freq;
 	adau1373_dai->clk_src = clk_id;
 
-	snd_soc_update_bits(dai->codec, ADAU1373_BCLKDIV(dai->id),
+	regmap_update_bits(adau1373->regmap, ADAU1373_BCLKDIV(dai->id),
 		ADAU1373_BCLKDIV_SOURCE, clk_id << 5);
 
 	return 0;
@@ -1120,6 +1257,7 @@ static struct snd_soc_dai_driver adau1373_dai_driver[] = {
 static int adau1373_set_pll(struct snd_soc_codec *codec, int pll_id,
 	int source, unsigned int freq_in, unsigned int freq_out)
 {
+	struct adau1373 *adau1373 = snd_soc_codec_get_drvdata(codec);
 	unsigned int dpll_div = 0;
 	unsigned int x, r, n, m, i, j, mode;
 
@@ -1187,36 +1325,36 @@ static int adau1373_set_pll(struct snd_soc_codec *codec, int pll_id,
 
 	if (dpll_div) {
 		dpll_div = 11 - dpll_div;
-		snd_soc_update_bits(codec, ADAU1373_PLL_CTRL6(pll_id),
+		regmap_update_bits(adau1373->regmap, ADAU1373_PLL_CTRL6(pll_id),
 			ADAU1373_PLL_CTRL6_DPLL_BYPASS, 0);
 	} else {
-		snd_soc_update_bits(codec, ADAU1373_PLL_CTRL6(pll_id),
+		regmap_update_bits(adau1373->regmap, ADAU1373_PLL_CTRL6(pll_id),
 			ADAU1373_PLL_CTRL6_DPLL_BYPASS,
 			ADAU1373_PLL_CTRL6_DPLL_BYPASS);
 	}
 
-	snd_soc_write(codec, ADAU1373_DPLL_CTRL(pll_id),
+	regmap_write(adau1373->regmap, ADAU1373_DPLL_CTRL(pll_id),
 		(source << 4) | dpll_div);
-	snd_soc_write(codec, ADAU1373_PLL_CTRL1(pll_id), (m >> 8) & 0xff);
-	snd_soc_write(codec, ADAU1373_PLL_CTRL2(pll_id), m & 0xff);
-	snd_soc_write(codec, ADAU1373_PLL_CTRL3(pll_id), (n >> 8) & 0xff);
-	snd_soc_write(codec, ADAU1373_PLL_CTRL4(pll_id), n & 0xff);
-	snd_soc_write(codec, ADAU1373_PLL_CTRL5(pll_id),
+	regmap_write(adau1373->regmap, ADAU1373_PLL_CTRL1(pll_id), (m >> 8) & 0xff);
+	regmap_write(adau1373->regmap, ADAU1373_PLL_CTRL2(pll_id), m & 0xff);
+	regmap_write(adau1373->regmap, ADAU1373_PLL_CTRL3(pll_id), (n >> 8) & 0xff);
+	regmap_write(adau1373->regmap, ADAU1373_PLL_CTRL4(pll_id), n & 0xff);
+	regmap_write(adau1373->regmap, ADAU1373_PLL_CTRL5(pll_id),
 		(r << 3) | (x << 1) | mode);
 
 	/* Set sysclk to pll_rate / 4 */
-	snd_soc_update_bits(codec, ADAU1373_CLK_SRC_DIV(pll_id), 0x3f, 0x09);
+	regmap_update_bits(adau1373->regmap, ADAU1373_CLK_SRC_DIV(pll_id), 0x3f, 0x09);
 
 	return 0;
 }
 
-static void adau1373_load_drc_settings(struct snd_soc_codec *codec,
+static void adau1373_load_drc_settings(struct adau1373 *adau1373,
 	unsigned int nr, uint8_t *drc)
 {
 	unsigned int i;
 
 	for (i = 0; i < ADAU1373_DRC_SIZE; ++i)
-		snd_soc_write(codec, ADAU1373_DRC(nr) + i, drc[i]);
+		regmap_write(adau1373->regmap, ADAU1373_DRC(nr) + i, drc[i]);
 }
 
 static bool adau1373_valid_micbias(enum adau1373_micbias_voltage micbias)
@@ -1235,13 +1373,14 @@ static bool adau1373_valid_micbias(enum adau1373_micbias_voltage micbias)
 
 static int adau1373_probe(struct snd_soc_codec *codec)
 {
+	struct adau1373 *adau1373 = snd_soc_codec_get_drvdata(codec);
 	struct adau1373_platform_data *pdata = codec->dev->platform_data;
 	bool lineout_differential = false;
 	unsigned int val;
 	int ret;
 	int i;
 
-	ret = snd_soc_codec_set_cache_io(codec, 8, 8, SND_SOC_I2C);
+	ret = snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP);
 	if (ret) {
 		dev_err(codec->dev, "failed to set cache I/O: %d\n", ret);
 		return ret;
@@ -1256,7 +1395,7 @@ static int adau1373_probe(struct snd_soc_codec *codec)
 			return -EINVAL;
 
 		for (i = 0; i < pdata->num_drc; ++i) {
-			adau1373_load_drc_settings(codec, i,
+			adau1373_load_drc_settings(adau1373, i,
 				pdata->drc_setting[i]);
 		}
 
@@ -1268,18 +1407,18 @@ static int adau1373_probe(struct snd_soc_codec *codec)
 			if (pdata->input_differential[i])
 				val |= BIT(i);
 		}
-		snd_soc_write(codec, ADAU1373_INPUT_MODE, val);
+		regmap_write(adau1373->regmap, ADAU1373_INPUT_MODE, val);
 
 		val = 0;
 		if (pdata->lineout_differential)
 			val |= ADAU1373_OUTPUT_CTRL_LDIFF;
 		if (pdata->lineout_ground_sense)
 			val |= ADAU1373_OUTPUT_CTRL_LNFBEN;
-		snd_soc_write(codec, ADAU1373_OUTPUT_CTRL, val);
+		regmap_write(adau1373->regmap, ADAU1373_OUTPUT_CTRL, val);
 
 		lineout_differential = pdata->lineout_differential;
 
-		snd_soc_write(codec, ADAU1373_EP_CTRL,
+		regmap_write(adau1373->regmap, ADAU1373_EP_CTRL,
 			(pdata->micbias1 << ADAU1373_EP_CTRL_MICBIAS1_OFFSET) |
 			(pdata->micbias2 << ADAU1373_EP_CTRL_MICBIAS2_OFFSET));
 	}
@@ -1289,7 +1428,7 @@ static int adau1373_probe(struct snd_soc_codec *codec)
 			ARRAY_SIZE(adau1373_lineout2_controls));
 	}
 
-	snd_soc_write(codec, ADAU1373_ADC_CTRL,
+	regmap_write(adau1373->regmap, ADAU1373_ADC_CTRL,
 	    ADAU1373_ADC_CTRL_RESET_FORCE | ADAU1373_ADC_CTRL_PEAK_DETECT);
 
 	return 0;
@@ -1298,17 +1437,19 @@ static int adau1373_probe(struct snd_soc_codec *codec)
 static int adau1373_set_bias_level(struct snd_soc_codec *codec,
 	enum snd_soc_bias_level level)
 {
+	struct adau1373 *adau1373 = snd_soc_codec_get_drvdata(codec);
+
 	switch (level) {
 	case SND_SOC_BIAS_ON:
 		break;
 	case SND_SOC_BIAS_PREPARE:
 		break;
 	case SND_SOC_BIAS_STANDBY:
-		snd_soc_update_bits(codec, ADAU1373_PWDN_CTRL3,
+		regmap_update_bits(adau1373->regmap, ADAU1373_PWDN_CTRL3,
 			ADAU1373_PWDN_CTRL3_PWR_EN, ADAU1373_PWDN_CTRL3_PWR_EN);
 		break;
 	case SND_SOC_BIAS_OFF:
-		snd_soc_update_bits(codec, ADAU1373_PWDN_CTRL3,
+		regmap_update_bits(adau1373->regmap, ADAU1373_PWDN_CTRL3,
 			ADAU1373_PWDN_CTRL3_PWR_EN, 0);
 		break;
 	}
@@ -1324,17 +1465,49 @@ static int adau1373_remove(struct snd_soc_codec *codec)
 
 static int adau1373_suspend(struct snd_soc_codec *codec)
 {
-	return adau1373_set_bias_level(codec, SND_SOC_BIAS_OFF);
+	struct adau1373 *adau1373 = snd_soc_codec_get_drvdata(codec);
+	int ret;
+
+	ret = adau1373_set_bias_level(codec, SND_SOC_BIAS_OFF);
+	regcache_cache_only(adau1373->regmap, true);
+
+	return ret;
 }
 
 static int adau1373_resume(struct snd_soc_codec *codec)
 {
+	struct adau1373 *adau1373 = snd_soc_codec_get_drvdata(codec);
+
+	regcache_cache_only(adau1373->regmap, false);
 	adau1373_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-	snd_soc_cache_sync(codec);
+	regcache_sync(adau1373->regmap);
 
 	return 0;
 }
 
+static bool adau1373_register_volatile(struct device *dev, unsigned int reg)
+{
+	switch (reg) {
+	case ADAU1373_SOFT_RESET:
+	case ADAU1373_ADC_DAC_STATUS:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static const struct regmap_config adau1373_regmap_config = {
+	.val_bits = 8,
+	.reg_bits = 8,
+
+	.volatile_reg = adau1373_register_volatile,
+	.max_register = ADAU1373_SOFT_RESET,
+
+	.cache_type = REGCACHE_RBTREE,
+	.reg_defaults = adau1373_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(adau1373_reg_defaults),
+};
+
 static struct snd_soc_codec_driver adau1373_codec_driver = {
 	.probe =	adau1373_probe,
 	.remove =	adau1373_remove,
@@ -1342,9 +1515,6 @@ static struct snd_soc_codec_driver adau1373_codec_driver = {
 	.resume =	adau1373_resume,
 	.set_bias_level = adau1373_set_bias_level,
 	.idle_bias_off = true,
-	.reg_cache_size = ARRAY_SIZE(adau1373_default_regs),
-	.reg_cache_default = adau1373_default_regs,
-	.reg_word_size = sizeof(uint8_t),
 
 	.set_pll = adau1373_set_pll,
 
@@ -1366,6 +1536,11 @@ static int adau1373_i2c_probe(struct i2c_client *client,
 	if (!adau1373)
 		return -ENOMEM;
 
+	adau1373->regmap = devm_regmap_init_i2c(client,
+		&adau1373_regmap_config);
+	if (IS_ERR(adau1373->regmap))
+		return PTR_ERR(adau1373->regmap);
+
 	dev_set_drvdata(&client->dev, adau1373);
 
 	ret = snd_soc_register_codec(&client->dev, &adau1373_codec_driver,
-- 
cgit 


From 6fb04138a3068609fa0ef3a98b60e31e686b3160 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Fri, 27 Sep 2013 13:47:09 +0200
Subject: ASoC: adau1373: Remove ADAU1373_PLL_CTRL7 register definition

There is no such register.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/adau1373.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sound/soc/codecs/adau1373.c b/sound/soc/codecs/adau1373.c
index c57c1f81a611..2f84054c9b7d 100644
--- a/sound/soc/codecs/adau1373.c
+++ b/sound/soc/codecs/adau1373.c
@@ -74,7 +74,6 @@ struct adau1373 {
 #define ADAU1373_PLL_CTRL4(x)	(0x2c + (x) * 7)
 #define ADAU1373_PLL_CTRL5(x)	(0x2d + (x) * 7)
 #define ADAU1373_PLL_CTRL6(x)	(0x2e + (x) * 7)
-#define ADAU1373_PLL_CTRL7(x)	(0x2f + (x) * 7)
 #define ADAU1373_HEADDECT	0x36
 #define ADAU1373_ADC_DAC_STATUS	0x37
 #define ADAU1373_ADC_CTRL	0x3c
-- 
cgit 


From 729485f6adbf1c7e1e08a01d2c276da30a91b0a4 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Fri, 27 Sep 2013 13:47:10 +0200
Subject: ASoC: adau1373: Issue soft reset on probe

Reset the device on probe to make sure that the register settings match the
register cache defaults.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/adau1373.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/codecs/adau1373.c b/sound/soc/codecs/adau1373.c
index 2f84054c9b7d..59654b1e7f3f 100644
--- a/sound/soc/codecs/adau1373.c
+++ b/sound/soc/codecs/adau1373.c
@@ -1540,6 +1540,8 @@ static int adau1373_i2c_probe(struct i2c_client *client,
 	if (IS_ERR(adau1373->regmap))
 		return PTR_ERR(adau1373->regmap);
 
+	regmap_write(adau1373->regmap, ADAU1373_SOFT_RESET, 0x00);
+
 	dev_set_drvdata(&client->dev, adau1373);
 
 	ret = snd_soc_register_codec(&client->dev, &adau1373_codec_driver,
-- 
cgit 


From 2560b3d1bdf1344aa65bba1523a08e4db27a3c14 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Fri, 27 Sep 2013 15:18:25 +0200
Subject: ASoC: adav80x: Convert to direct regmap usage

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/adav80x.c | 147 +++++++++++++++++++++++++++++++--------------
 1 file changed, 102 insertions(+), 45 deletions(-)

diff --git a/sound/soc/codecs/adav80x.c b/sound/soc/codecs/adav80x.c
index 15b012d0f226..14a7c169d004 100644
--- a/sound/soc/codecs/adav80x.c
+++ b/sound/soc/codecs/adav80x.c
@@ -115,22 +115,34 @@
 
 #define ADAV80X_PLL_OUTE_SYSCLKPD(x)		BIT(2 - (x))
 
-static u8 adav80x_default_regs[] = {
-	0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x02, 0x01, 0x80, 0x26, 0x00, 0x00,
-	0x02, 0x40, 0x20, 0x00, 0x09, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x04, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0xd1, 0x92, 0xb1, 0x37,
-	0x48, 0xd2, 0xfb, 0xca, 0xd2, 0x15, 0xe8, 0x29, 0xb9, 0x6a, 0xda, 0x2b,
-	0xb7, 0xc0, 0x11, 0x65, 0x5c, 0xf6, 0xff, 0x8d, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xa5, 0x00, 0x00,
-	0x00, 0xe8, 0x46, 0xe1, 0x5b, 0xd3, 0x43, 0x77, 0x93, 0xa7, 0x44, 0xee,
-	0x32, 0x12, 0xc0, 0x11, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x3f, 0x3f,
-	0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0x00, 0x1d, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x52, 0x00,
+static struct reg_default adav80x_reg_defaults[] = {
+	{ ADAV80X_PLAYBACK_CTRL,	0x01 },
+	{ ADAV80X_AUX_IN_CTRL,		0x01 },
+	{ ADAV80X_REC_CTRL,		0x02 },
+	{ ADAV80X_AUX_OUT_CTRL,		0x01 },
+	{ ADAV80X_DPATH_CTRL1,		0xc0 },
+	{ ADAV80X_DPATH_CTRL2,		0x11 },
+	{ ADAV80X_DAC_CTRL1,		0x00 },
+	{ ADAV80X_DAC_CTRL2,		0x00 },
+	{ ADAV80X_DAC_CTRL3,		0x00 },
+	{ ADAV80X_DAC_L_VOL,		0xff },
+	{ ADAV80X_DAC_R_VOL,		0xff },
+	{ ADAV80X_PGA_L_VOL,		0x00 },
+	{ ADAV80X_PGA_R_VOL,		0x00 },
+	{ ADAV80X_ADC_CTRL1,		0x00 },
+	{ ADAV80X_ADC_CTRL2,		0x00 },
+	{ ADAV80X_ADC_L_VOL,		0xff },
+	{ ADAV80X_ADC_R_VOL,		0xff },
+	{ ADAV80X_PLL_CTRL1,		0x00 },
+	{ ADAV80X_PLL_CTRL2,		0x00 },
+	{ ADAV80X_ICLK_CTRL1,		0x00 },
+	{ ADAV80X_ICLK_CTRL2,		0x00 },
+	{ ADAV80X_PLL_CLK_SRC,		0x00 },
+	{ ADAV80X_PLL_OUTE,		0x00 },
 };
 
 struct adav80x {
-	enum snd_soc_control_type control_type;
+	struct regmap *regmap;
 
 	enum adav80x_clk_src clk_src;
 	unsigned int sysclk;
@@ -298,7 +310,7 @@ static int adav80x_set_deemph(struct snd_soc_codec *codec)
 		val = ADAV80X_DAC_CTRL2_DEEMPH_NONE;
 	}
 
-	return snd_soc_update_bits(codec, ADAV80X_DAC_CTRL2,
+	return regmap_update_bits(adav80x->regmap, ADAV80X_DAC_CTRL2,
 		ADAV80X_DAC_CTRL2_DEEMPH_MASK, val);
 }
 
@@ -394,10 +406,11 @@ static int adav80x_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 		return -EINVAL;
 	}
 
-	snd_soc_update_bits(codec, adav80x_port_ctrl_regs[dai->id][0],
+	regmap_update_bits(adav80x->regmap, adav80x_port_ctrl_regs[dai->id][0],
 		ADAV80X_CAPTURE_MODE_MASK | ADAV80X_CAPTURE_MODE_MASTER,
 		capture);
-	snd_soc_write(codec, adav80x_port_ctrl_regs[dai->id][1], playback);
+	regmap_write(adav80x->regmap, adav80x_port_ctrl_regs[dai->id][1],
+		playback);
 
 	adav80x->dai_fmt[dai->id] = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
 
@@ -407,6 +420,7 @@ static int adav80x_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 static int adav80x_set_adc_clock(struct snd_soc_codec *codec,
 		unsigned int sample_rate)
 {
+	struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
 	unsigned int val;
 
 	if (sample_rate <= 48000)
@@ -414,7 +428,7 @@ static int adav80x_set_adc_clock(struct snd_soc_codec *codec,
 	else
 		val = ADAV80X_ADC_CTRL1_MODULATOR_64FS;
 
-	snd_soc_update_bits(codec, ADAV80X_ADC_CTRL1,
+	regmap_update_bits(adav80x->regmap, ADAV80X_ADC_CTRL1,
 		ADAV80X_ADC_CTRL1_MODULATOR_MASK, val);
 
 	return 0;
@@ -423,6 +437,7 @@ static int adav80x_set_adc_clock(struct snd_soc_codec *codec,
 static int adav80x_set_dac_clock(struct snd_soc_codec *codec,
 		unsigned int sample_rate)
 {
+	struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
 	unsigned int val;
 
 	if (sample_rate <= 48000)
@@ -430,7 +445,7 @@ static int adav80x_set_dac_clock(struct snd_soc_codec *codec,
 	else
 		val = ADAV80X_DAC_CTRL2_DIV2 | ADAV80X_DAC_CTRL2_INTERPOL_128FS;
 
-	snd_soc_update_bits(codec, ADAV80X_DAC_CTRL2,
+	regmap_update_bits(adav80x->regmap, ADAV80X_DAC_CTRL2,
 		ADAV80X_DAC_CTRL2_DIV_MASK | ADAV80X_DAC_CTRL2_INTERPOL_MASK,
 		val);
 
@@ -440,6 +455,7 @@ static int adav80x_set_dac_clock(struct snd_soc_codec *codec,
 static int adav80x_set_capture_pcm_format(struct snd_soc_codec *codec,
 		struct snd_soc_dai *dai, snd_pcm_format_t format)
 {
+	struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
 	unsigned int val;
 
 	switch (format) {
@@ -459,7 +475,7 @@ static int adav80x_set_capture_pcm_format(struct snd_soc_codec *codec,
 		return -EINVAL;
 	}
 
-	snd_soc_update_bits(codec, adav80x_port_ctrl_regs[dai->id][0],
+	regmap_update_bits(adav80x->regmap, adav80x_port_ctrl_regs[dai->id][0],
 		ADAV80X_CAPTURE_WORD_LEN_MASK, val);
 
 	return 0;
@@ -491,7 +507,7 @@ static int adav80x_set_playback_pcm_format(struct snd_soc_codec *codec,
 		return -EINVAL;
 	}
 
-	snd_soc_update_bits(codec, adav80x_port_ctrl_regs[dai->id][1],
+	regmap_update_bits(adav80x->regmap, adav80x_port_ctrl_regs[dai->id][1],
 		ADAV80X_PLAYBACK_MODE_MASK, val);
 
 	return 0;
@@ -554,8 +570,10 @@ static int adav80x_set_sysclk(struct snd_soc_codec *codec,
 					ADAV80X_ICLK_CTRL1_ICLK2_SRC(clk_id);
 			iclk_ctrl2 = ADAV80X_ICLK_CTRL2_ICLK1_SRC(clk_id);
 
-			snd_soc_write(codec, ADAV80X_ICLK_CTRL1, iclk_ctrl1);
-			snd_soc_write(codec, ADAV80X_ICLK_CTRL2, iclk_ctrl2);
+			regmap_write(adav80x->regmap, ADAV80X_ICLK_CTRL1,
+				iclk_ctrl1);
+			regmap_write(adav80x->regmap, ADAV80X_ICLK_CTRL2,
+				iclk_ctrl2);
 
 			snd_soc_dapm_sync(&codec->dapm);
 		}
@@ -575,10 +593,12 @@ static int adav80x_set_sysclk(struct snd_soc_codec *codec,
 		mask = ADAV80X_PLL_OUTE_SYSCLKPD(clk_id);
 
 		if (freq == 0) {
-			snd_soc_update_bits(codec, ADAV80X_PLL_OUTE, mask, mask);
+			regmap_update_bits(adav80x->regmap, ADAV80X_PLL_OUTE,
+				mask, mask);
 			adav80x->sysclk_pd[clk_id] = true;
 		} else {
-			snd_soc_update_bits(codec, ADAV80X_PLL_OUTE, mask, 0);
+			regmap_update_bits(adav80x->regmap, ADAV80X_PLL_OUTE,
+				mask, 0);
 			adav80x->sysclk_pd[clk_id] = false;
 		}
 
@@ -650,9 +670,9 @@ static int adav80x_set_pll(struct snd_soc_codec *codec, int pll_id,
 		return -EINVAL;
 	}
 
-	snd_soc_update_bits(codec, ADAV80X_PLL_CTRL1, ADAV80X_PLL_CTRL1_PLLDIV,
-		pll_ctrl1);
-	snd_soc_update_bits(codec, ADAV80X_PLL_CTRL2,
+	regmap_update_bits(adav80x->regmap, ADAV80X_PLL_CTRL1,
+			ADAV80X_PLL_CTRL1_PLLDIV, pll_ctrl1);
+	regmap_update_bits(adav80x->regmap, ADAV80X_PLL_CTRL2,
 			ADAV80X_PLL_CTRL2_PLL_MASK(pll_id), pll_ctrl2);
 
 	if (source != adav80x->pll_src) {
@@ -661,7 +681,7 @@ static int adav80x_set_pll(struct snd_soc_codec *codec, int pll_id,
 		else
 			pll_src = ADAV80X_PLL_CLK_SRC_PLL_XIN(pll_id);
 
-		snd_soc_update_bits(codec, ADAV80X_PLL_CLK_SRC,
+		regmap_update_bits(adav80x->regmap, ADAV80X_PLL_CLK_SRC,
 				ADAV80X_PLL_CLK_SRC_PLL_MASK(pll_id), pll_src);
 
 		adav80x->pll_src = source;
@@ -675,6 +695,7 @@ static int adav80x_set_pll(struct snd_soc_codec *codec, int pll_id,
 static int adav80x_set_bias_level(struct snd_soc_codec *codec,
 		enum snd_soc_bias_level level)
 {
+	struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
 	unsigned int mask = ADAV80X_DAC_CTRL1_PD;
 
 	switch (level) {
@@ -683,10 +704,12 @@ static int adav80x_set_bias_level(struct snd_soc_codec *codec,
 	case SND_SOC_BIAS_PREPARE:
 		break;
 	case SND_SOC_BIAS_STANDBY:
-		snd_soc_update_bits(codec, ADAV80X_DAC_CTRL1, mask, 0x00);
+		regmap_update_bits(adav80x->regmap, ADAV80X_DAC_CTRL1, mask,
+			0x00);
 		break;
 	case SND_SOC_BIAS_OFF:
-		snd_soc_update_bits(codec, ADAV80X_DAC_CTRL1, mask, mask);
+		regmap_update_bits(adav80x->regmap, ADAV80X_DAC_CTRL1, mask,
+			mask);
 		break;
 	}
 
@@ -780,7 +803,7 @@ static int adav80x_probe(struct snd_soc_codec *codec)
 	int ret;
 	struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
 
-	ret = snd_soc_codec_set_cache_io(codec, 7, 9, adav80x->control_type);
+	ret = snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP);
 	if (ret) {
 		dev_err(codec->dev, "failed to set cache I/O: %d\n", ret);
 		return ret;
@@ -791,23 +814,31 @@ static int adav80x_probe(struct snd_soc_codec *codec)
 	snd_soc_dapm_force_enable_pin(&codec->dapm, "PLL2");
 
 	/* Power down S/PDIF receiver, since it is currently not supported */
-	snd_soc_write(codec, ADAV80X_PLL_OUTE, 0x20);
+	regmap_write(adav80x->regmap, ADAV80X_PLL_OUTE, 0x20);
 	/* Disable DAC zero flag */
-	snd_soc_write(codec, ADAV80X_DAC_CTRL3, 0x6);
+	regmap_write(adav80x->regmap, ADAV80X_DAC_CTRL3, 0x6);
 
 	return adav80x_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 }
 
 static int adav80x_suspend(struct snd_soc_codec *codec)
 {
-	return adav80x_set_bias_level(codec, SND_SOC_BIAS_OFF);
+	struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
+	int ret;
+
+	ret = adav80x_set_bias_level(codec, SND_SOC_BIAS_OFF);
+	regcache_cache_only(adav80x->regmap, true);
+
+	return ret;
 }
 
 static int adav80x_resume(struct snd_soc_codec *codec)
 {
+	struct adav80x *adav80x = snd_soc_codec_get_drvdata(codec);
+
+	regcache_cache_only(adav80x->regmap, false);
 	adav80x_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
-	codec->cache_sync = 1;
-	snd_soc_cache_sync(codec);
+	regcache_sync(adav80x->regmap);
 
 	return 0;
 }
@@ -827,10 +858,6 @@ static struct snd_soc_codec_driver adav80x_codec_driver = {
 	.set_pll = adav80x_set_pll,
 	.set_sysclk = adav80x_set_sysclk,
 
-	.reg_word_size = sizeof(u8),
-	.reg_cache_size = ARRAY_SIZE(adav80x_default_regs),
-	.reg_cache_default = adav80x_default_regs,
-
 	.controls = adav80x_controls,
 	.num_controls = ARRAY_SIZE(adav80x_controls),
 	.dapm_widgets = adav80x_dapm_widgets,
@@ -839,18 +866,21 @@ static struct snd_soc_codec_driver adav80x_codec_driver = {
 	.num_dapm_routes = ARRAY_SIZE(adav80x_dapm_routes),
 };
 
-static int adav80x_bus_probe(struct device *dev,
-			     enum snd_soc_control_type control_type)
+static int adav80x_bus_probe(struct device *dev, struct regmap *regmap)
 {
 	struct adav80x *adav80x;
 	int ret;
 
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
 	adav80x = kzalloc(sizeof(*adav80x), GFP_KERNEL);
 	if (!adav80x)
 		return -ENOMEM;
 
+
 	dev_set_drvdata(dev, adav80x);
-	adav80x->control_type = control_type;
+	adav80x->regmap = regmap;
 
 	ret = snd_soc_register_codec(dev, &adav80x_codec_driver,
 		adav80x_dais, ARRAY_SIZE(adav80x_dais));
@@ -868,6 +898,19 @@ static int adav80x_bus_remove(struct device *dev)
 }
 
 #if defined(CONFIG_SPI_MASTER)
+static const struct regmap_config adav80x_spi_regmap_config = {
+	.val_bits = 8,
+	.pad_bits = 1,
+	.reg_bits = 7,
+	.read_flag_mask = 0x01,
+
+	.max_register = ADAV80X_PLL_OUTE,
+
+	.cache_type = REGCACHE_RBTREE,
+	.reg_defaults = adav80x_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(adav80x_reg_defaults),
+};
+
 static const struct spi_device_id adav80x_spi_id[] = {
 	{ "adav801", 0 },
 	{ }
@@ -876,7 +919,8 @@ MODULE_DEVICE_TABLE(spi, adav80x_spi_id);
 
 static int adav80x_spi_probe(struct spi_device *spi)
 {
-	return adav80x_bus_probe(&spi->dev, SND_SOC_SPI);
+	return adav80x_bus_probe(&spi->dev,
+		devm_regmap_init_spi(spi, &adav80x_spi_regmap_config));
 }
 
 static int adav80x_spi_remove(struct spi_device *spi)
@@ -896,6 +940,18 @@ static struct spi_driver adav80x_spi_driver = {
 #endif
 
 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+static const struct regmap_config adav80x_i2c_regmap_config = {
+	.val_bits = 8,
+	.pad_bits = 1,
+	.reg_bits = 7,
+
+	.max_register = ADAV80X_PLL_OUTE,
+
+	.cache_type = REGCACHE_RBTREE,
+	.reg_defaults = adav80x_reg_defaults,
+	.num_reg_defaults = ARRAY_SIZE(adav80x_reg_defaults),
+};
+
 static const struct i2c_device_id adav80x_i2c_id[] = {
 	{ "adav803", 0 },
 	{ }
@@ -905,7 +961,8 @@ MODULE_DEVICE_TABLE(i2c, adav80x_i2c_id);
 static int adav80x_i2c_probe(struct i2c_client *client,
 			     const struct i2c_device_id *id)
 {
-	return adav80x_bus_probe(&client->dev, SND_SOC_I2C);
+	return adav80x_bus_probe(&client->dev,
+		devm_regmap_init_i2c(client, &adav80x_i2c_regmap_config));
 }
 
 static int adav80x_i2c_remove(struct i2c_client *client)
-- 
cgit 


From 6090e9a6eaf0ecf38213f0cbaaa0b0147760432f Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Thu, 26 Sep 2013 18:18:04 +0530
Subject: pinctrl: palmas: remove non-require function

Palmas pinmux and pin configuration support the single pin level
configuration in place of pin group.

Hence it is only require to pin_config_{set|get} and do not require
pin_config_group_{set|get}. As core framework already check for
require APIs availability, it is not require to implement as dummy
for non-require ops and so removing it.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-palmas.c | 17 -----------------
 1 file changed, 17 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-palmas.c b/drivers/pinctrl/pinctrl-palmas.c
index 82638fac3cfa..e4d61fa4212c 100644
--- a/drivers/pinctrl/pinctrl-palmas.c
+++ b/drivers/pinctrl/pinctrl-palmas.c
@@ -961,26 +961,9 @@ static int palmas_pinconf_set(struct pinctrl_dev *pctldev,
 	return 0;
 }
 
-static int palmas_pinconf_group_get(struct pinctrl_dev *pctldev,
-				unsigned group, unsigned long *config)
-{
-	dev_err(pctldev->dev, "palmas_pinconf_group_get op not supported\n");
-	return -ENOTSUPP;
-}
-
-static int palmas_pinconf_group_set(struct pinctrl_dev *pctldev,
-				unsigned group, unsigned long *configs,
-				unsigned num_configs)
-{
-	dev_err(pctldev->dev, "palmas_pinconf_group_set op not supported\n");
-	return -ENOTSUPP;
-}
-
 static const struct pinconf_ops palmas_pinconf_ops = {
 	.pin_config_get = palmas_pinconf_get,
 	.pin_config_set = palmas_pinconf_set,
-	.pin_config_group_get = palmas_pinconf_group_get,
-	.pin_config_group_set = palmas_pinconf_group_set,
 };
 
 static struct pinctrl_desc palmas_pinctrl_desc = {
-- 
cgit 


From 70fac17cec347c4013cb8f380c6fe6554a13d884 Mon Sep 17 00:00:00 2001
From: Mathias Krause <minipli@googlemail.com>
Date: Sat, 31 Aug 2013 20:24:14 +0200
Subject: spi: simplify call to request_module()

request_module() can handle format strings on its own, no need to create
the full module name ourself.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 9e039c60c068..74a526ce8c04 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -839,7 +839,6 @@ static void of_register_spi_devices(struct spi_master *master)
 	struct spi_device *spi;
 	struct device_node *nc;
 	const __be32 *prop;
-	char modalias[SPI_NAME_SIZE + 4];
 	int rc;
 	int len;
 
@@ -944,9 +943,7 @@ static void of_register_spi_devices(struct spi_master *master)
 		spi->dev.of_node = nc;
 
 		/* Register the new device */
-		snprintf(modalias, sizeof(modalias), "%s%s", SPI_MODULE_PREFIX,
-			 spi->modalias);
-		request_module(modalias);
+		request_module("%s%s", SPI_MODULE_PREFIX, spi->modalias);
 		rc = spi_add_device(spi);
 		if (rc) {
 			dev_err(&master->dev, "spi_device register error %s\n",
-- 
cgit 


From 89da4293a7bb29ac42b7dd2c2573c8a5ebb0b6c7 Mon Sep 17 00:00:00 2001
From: Trent Piepho <tpiepho@gmail.com>
Date: Fri, 27 Sep 2013 05:37:25 -0700
Subject: spi: Use of_property_read_u32

Instead of getting the raw property, checking the length, and doing
endian conversion each time, use the OF function
of_property_read_u32() that does all that.

Error messages are slightly improved with error codes from
of_property_read_u32() for different ways the property may be invalid
(missing, too short, etc.)

Signed-off-by: Trent Piepho <tpiepho@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi.c | 49 +++++++++++++++++++++++--------------------------
 1 file changed, 23 insertions(+), 26 deletions(-)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 74a526ce8c04..1cd491f79422 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -838,9 +838,8 @@ static void of_register_spi_devices(struct spi_master *master)
 {
 	struct spi_device *spi;
 	struct device_node *nc;
-	const __be32 *prop;
 	int rc;
-	int len;
+	u32 value;
 
 	if (!master->dev.of_node)
 		return;
@@ -865,14 +864,14 @@ static void of_register_spi_devices(struct spi_master *master)
 		}
 
 		/* Device address */
-		prop = of_get_property(nc, "reg", &len);
-		if (!prop || len < sizeof(*prop)) {
-			dev_err(&master->dev, "%s has no 'reg' property\n",
-				nc->full_name);
+		rc = of_property_read_u32(nc, "reg", &value);
+		if (rc) {
+			dev_err(&master->dev, "%s has no valid 'reg' property (%d)\n",
+				nc->full_name, rc);
 			spi_dev_put(spi);
 			continue;
 		}
-		spi->chip_select = be32_to_cpup(prop);
+		spi->chip_select = value;
 
 		/* Mode (clock phase/polarity/etc.) */
 		if (of_find_property(nc, "spi-cpha", NULL))
@@ -885,55 +884,53 @@ static void of_register_spi_devices(struct spi_master *master)
 			spi->mode |= SPI_3WIRE;
 
 		/* Device DUAL/QUAD mode */
-		prop = of_get_property(nc, "spi-tx-bus-width", &len);
-		if (prop && len == sizeof(*prop)) {
-			switch (be32_to_cpup(prop)) {
-			case SPI_NBITS_SINGLE:
+		if (!of_property_read_u32(nc, "spi-tx-bus-width", &value)) {
+			switch (value) {
+			case 1:
 				break;
-			case SPI_NBITS_DUAL:
+			case 2:
 				spi->mode |= SPI_TX_DUAL;
 				break;
-			case SPI_NBITS_QUAD:
+			case 4:
 				spi->mode |= SPI_TX_QUAD;
 				break;
 			default:
 				dev_err(&master->dev,
 					"spi-tx-bus-width %d not supported\n",
-					be32_to_cpup(prop));
+					value);
 				spi_dev_put(spi);
 				continue;
 			}
 		}
 
-		prop = of_get_property(nc, "spi-rx-bus-width", &len);
-		if (prop && len == sizeof(*prop)) {
-			switch (be32_to_cpup(prop)) {
-			case SPI_NBITS_SINGLE:
+		if (!of_property_read_u32(nc, "spi-rx-bus-width", &value)) {
+			switch (value) {
+			case 1:
 				break;
-			case SPI_NBITS_DUAL:
+			case 2:
 				spi->mode |= SPI_RX_DUAL;
 				break;
-			case SPI_NBITS_QUAD:
+			case 4:
 				spi->mode |= SPI_RX_QUAD;
 				break;
 			default:
 				dev_err(&master->dev,
 					"spi-rx-bus-width %d not supported\n",
-					be32_to_cpup(prop));
+					value);
 				spi_dev_put(spi);
 				continue;
 			}
 		}
 
 		/* Device speed */
-		prop = of_get_property(nc, "spi-max-frequency", &len);
-		if (!prop || len < sizeof(*prop)) {
-			dev_err(&master->dev, "%s has no 'spi-max-frequency' property\n",
-				nc->full_name);
+		rc = of_property_read_u32(nc, "spi-max-frequency", &value);
+		if (rc) {
+			dev_err(&master->dev, "%s has no valid 'spi-max-frequency' property (%d)\n",
+				nc->full_name, rc);
 			spi_dev_put(spi);
 			continue;
 		}
-		spi->max_speed_hz = be32_to_cpup(prop);
+		spi->max_speed_hz = value;
 
 		/* IRQ */
 		spi->irq = irq_of_parse_and_map(nc, 0);
-- 
cgit 


From bde251a9a813bfbb8f300abef265ecb7028c428f Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Fri, 27 Sep 2013 08:25:13 -0500
Subject: regulator: ti-abb: skip optional parameter for ldo-address

On platforms like OMAP4460, LDO override is never used. Even though
efuse determines the ABB bias mode to operate at, ABB voltage is
preconfigured in internal efuse registers without the need for
LDO override for bias voltage. So skip optional parameter if
property is not present.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/ti-abb-regulator.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/regulator/ti-abb-regulator.c b/drivers/regulator/ti-abb-regulator.c
index d8e3e1262bc2..1e0280536e72 100644
--- a/drivers/regulator/ti-abb-regulator.c
+++ b/drivers/regulator/ti-abb-regulator.c
@@ -765,6 +765,11 @@ static int ti_abb_probe(struct platform_device *pdev)
 
 	pname = "ldo-address";
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, pname);
+	if (!res) {
+		dev_dbg(dev, "Missing '%s' IO resource\n", pname);
+		ret = -ENODEV;
+		goto skip_opt;
+	}
 	abb->ldo_base = devm_ioremap_resource(dev, res);
 	if (IS_ERR(abb->ldo_base)) {
 		ret = PTR_ERR(abb->ldo_base);
-- 
cgit 


From b21613aeb649293946556410ff10dbb8c639f298 Mon Sep 17 00:00:00 2001
From: "holger@eitzenberger.org" <holger@eitzenberger.org>
Date: Fri, 20 Sep 2013 22:43:04 +0200
Subject: netfilter: nf_ct_sip: extend RCU read lock in set_expected_rtp_rtcp()

Currently set_expected_rtp_rtcp() in the SIP helper uses
rcu_dereference() two times to access two different NAT hook
functions. However, only the first one is protected by the RCU
reader lock, but the 2nd isn't. Fix it by extending the RCU
protected area.

This is more a cosmetic thing since we rely on all netfilter hooks
being rcu_read_lock()ed by nf_hook_slow() in many places anyways,
as Patrick McHardy clarified.

Signed-off-by: Holger Eitzenberger <holger.eitzenberger@sophos.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nf_conntrack_sip.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/nf_conntrack_sip.c b/net/netfilter/nf_conntrack_sip.c
index e0c4373b4747..5ed8c441dffd 100644
--- a/net/netfilter/nf_conntrack_sip.c
+++ b/net/netfilter/nf_conntrack_sip.c
@@ -966,7 +966,6 @@ static int set_expected_rtp_rtcp(struct sk_buff *skb, unsigned int protoff,
 #endif
 			skip_expect = 1;
 	} while (!skip_expect);
-	rcu_read_unlock();
 
 	base_port = ntohs(tuple.dst.u.udp.port) & ~1;
 	rtp_port = htons(base_port);
@@ -980,8 +979,10 @@ static int set_expected_rtp_rtcp(struct sk_buff *skb, unsigned int protoff,
 			goto err1;
 	}
 
-	if (skip_expect)
+	if (skip_expect) {
+		rcu_read_unlock();
 		return NF_ACCEPT;
+	}
 
 	rtp_exp = nf_ct_expect_alloc(ct);
 	if (rtp_exp == NULL)
@@ -1012,6 +1013,7 @@ static int set_expected_rtp_rtcp(struct sk_buff *skb, unsigned int protoff,
 err2:
 	nf_ct_expect_put(rtp_exp);
 err1:
+	rcu_read_unlock();
 	return ret;
 }
 
-- 
cgit 


From de1389b11686f436c81d696b5a33eec2bc975665 Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Thu, 26 Sep 2013 15:00:30 +0800
Subject: netfilter: xt_TCPMSS: Get mtu only if clamp-mss-to-pmtu is specified

This patch refactors the code to skip tcpmss_reverse_mtu if no
clamp-mss-to-pmtu is specified.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/xt_TCPMSS.c | 70 ++++++++++++++++++++++++-----------------------
 1 file changed, 36 insertions(+), 34 deletions(-)

diff --git a/net/netfilter/xt_TCPMSS.c b/net/netfilter/xt_TCPMSS.c
index cd24290f3b2f..62776de8293c 100644
--- a/net/netfilter/xt_TCPMSS.c
+++ b/net/netfilter/xt_TCPMSS.c
@@ -43,10 +43,41 @@ optlen(const u_int8_t *opt, unsigned int offset)
 		return opt[offset+1];
 }
 
+static u_int32_t tcpmss_reverse_mtu(const struct sk_buff *skb,
+				    unsigned int family)
+{
+	struct flowi fl;
+	const struct nf_afinfo *ai;
+	struct rtable *rt = NULL;
+	u_int32_t mtu     = ~0U;
+
+	if (family == PF_INET) {
+		struct flowi4 *fl4 = &fl.u.ip4;
+		memset(fl4, 0, sizeof(*fl4));
+		fl4->daddr = ip_hdr(skb)->saddr;
+	} else {
+		struct flowi6 *fl6 = &fl.u.ip6;
+
+		memset(fl6, 0, sizeof(*fl6));
+		fl6->daddr = ipv6_hdr(skb)->saddr;
+	}
+	rcu_read_lock();
+	ai = nf_get_afinfo(family);
+	if (ai != NULL)
+		ai->route(&init_net, (struct dst_entry **)&rt, &fl, false);
+	rcu_read_unlock();
+
+	if (rt != NULL) {
+		mtu = dst_mtu(&rt->dst);
+		dst_release(&rt->dst);
+	}
+	return mtu;
+}
+
 static int
 tcpmss_mangle_packet(struct sk_buff *skb,
 		     const struct xt_action_param *par,
-		     unsigned int in_mtu,
+		     unsigned int family,
 		     unsigned int tcphoff,
 		     unsigned int minlen)
 {
@@ -76,6 +107,8 @@ tcpmss_mangle_packet(struct sk_buff *skb,
 		return -1;
 
 	if (info->mss == XT_TCPMSS_CLAMP_PMTU) {
+		unsigned int in_mtu = tcpmss_reverse_mtu(skb, family);
+
 		if (dst_mtu(skb_dst(skb)) <= minlen) {
 			net_err_ratelimited("unknown or invalid path-MTU (%u)\n",
 					    dst_mtu(skb_dst(skb)));
@@ -165,37 +198,6 @@ tcpmss_mangle_packet(struct sk_buff *skb,
 	return TCPOLEN_MSS;
 }
 
-static u_int32_t tcpmss_reverse_mtu(const struct sk_buff *skb,
-				    unsigned int family)
-{
-	struct flowi fl;
-	const struct nf_afinfo *ai;
-	struct rtable *rt = NULL;
-	u_int32_t mtu     = ~0U;
-
-	if (family == PF_INET) {
-		struct flowi4 *fl4 = &fl.u.ip4;
-		memset(fl4, 0, sizeof(*fl4));
-		fl4->daddr = ip_hdr(skb)->saddr;
-	} else {
-		struct flowi6 *fl6 = &fl.u.ip6;
-
-		memset(fl6, 0, sizeof(*fl6));
-		fl6->daddr = ipv6_hdr(skb)->saddr;
-	}
-	rcu_read_lock();
-	ai = nf_get_afinfo(family);
-	if (ai != NULL)
-		ai->route(&init_net, (struct dst_entry **)&rt, &fl, false);
-	rcu_read_unlock();
-
-	if (rt != NULL) {
-		mtu = dst_mtu(&rt->dst);
-		dst_release(&rt->dst);
-	}
-	return mtu;
-}
-
 static unsigned int
 tcpmss_tg4(struct sk_buff *skb, const struct xt_action_param *par)
 {
@@ -204,7 +206,7 @@ tcpmss_tg4(struct sk_buff *skb, const struct xt_action_param *par)
 	int ret;
 
 	ret = tcpmss_mangle_packet(skb, par,
-				   tcpmss_reverse_mtu(skb, PF_INET),
+				   PF_INET,
 				   iph->ihl * 4,
 				   sizeof(*iph) + sizeof(struct tcphdr));
 	if (ret < 0)
@@ -233,7 +235,7 @@ tcpmss_tg6(struct sk_buff *skb, const struct xt_action_param *par)
 	if (tcphoff < 0)
 		return NF_DROP;
 	ret = tcpmss_mangle_packet(skb, par,
-				   tcpmss_reverse_mtu(skb, PF_INET6),
+				   PF_INET6,
 				   tcphoff,
 				   sizeof(*ipv6h) + sizeof(struct tcphdr));
 	if (ret < 0)
-- 
cgit 


From 7722e0d1c076d9610f00d79bde8af977157aa23b Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Thu, 26 Sep 2013 15:00:31 +0800
Subject: netfilter: xt_TCPMSS: lookup route from proper net namespace

Otherwise the pmtu will be incorrect.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/xt_TCPMSS.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/net/netfilter/xt_TCPMSS.c b/net/netfilter/xt_TCPMSS.c
index 62776de8293c..e762de5ee89b 100644
--- a/net/netfilter/xt_TCPMSS.c
+++ b/net/netfilter/xt_TCPMSS.c
@@ -43,7 +43,8 @@ optlen(const u_int8_t *opt, unsigned int offset)
 		return opt[offset+1];
 }
 
-static u_int32_t tcpmss_reverse_mtu(const struct sk_buff *skb,
+static u_int32_t tcpmss_reverse_mtu(struct net *net,
+				    const struct sk_buff *skb,
 				    unsigned int family)
 {
 	struct flowi fl;
@@ -64,7 +65,7 @@ static u_int32_t tcpmss_reverse_mtu(const struct sk_buff *skb,
 	rcu_read_lock();
 	ai = nf_get_afinfo(family);
 	if (ai != NULL)
-		ai->route(&init_net, (struct dst_entry **)&rt, &fl, false);
+		ai->route(net, (struct dst_entry **)&rt, &fl, false);
 	rcu_read_unlock();
 
 	if (rt != NULL) {
@@ -107,7 +108,8 @@ tcpmss_mangle_packet(struct sk_buff *skb,
 		return -1;
 
 	if (info->mss == XT_TCPMSS_CLAMP_PMTU) {
-		unsigned int in_mtu = tcpmss_reverse_mtu(skb, family);
+		struct net *net = dev_net(par->in ? par->in : par->out);
+		unsigned int in_mtu = tcpmss_reverse_mtu(net, skb, family);
 
 		if (dst_mtu(skb_dst(skb)) <= minlen) {
 			net_err_ratelimited("unknown or invalid path-MTU (%u)\n",
-- 
cgit 


From e76b855956383d58232cfcf367f0ce34f149161b Mon Sep 17 00:00:00 2001
From: Dong Aisheng <b29396@freescale.com>
Date: Fri, 13 Sep 2013 19:11:37 +0800
Subject: mmc: sdhci-esdhc-imx: set actual_clock in clock setting

This enables access the actual_clock via sys.
root@imx6qsabreauto:~# cat /sys/kernel/debug/mmc0/ios
clock:          198000000 Hz
actual clock:   198000000 Hz
vdd:            17 (2.9 ~ 3.0 V)
bus mode:       2 (push-pull)
chip select:    0 (don't care)
power mode:     2 (on)
bus width:      2 (4 bits)
timing spec:    6 (sd uhs SDR104)
signal voltage: 0 (1.80 V)

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 3 ++-
 drivers/mmc/host/sdhci-of-esdhc.c  | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index fe48ec3323af..b9899e9c684a 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -524,8 +524,9 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host,
 	while (host_clock / pre_div / div > clock && div < 16)
 		div++;
 
+	host->mmc->actual_clock = host_clock / pre_div / div;
 	dev_dbg(mmc_dev(host->mmc), "desired SD clock: %d, actual: %d\n",
-		clock, host_clock / pre_div / div);
+		clock, host->mmc->actual_clock);
 
 	pre_div >>= 1;
 	div--;
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index b1605a1747c4..0b249970b119 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -227,7 +227,7 @@ static void esdhc_of_set_clock(struct sdhci_host *host, unsigned int clock)
 		div++;
 
 	dev_dbg(mmc_dev(host->mmc), "desired SD clock: %d, actual: %d\n",
-		clock, host_clock / pre_div / div);
+		clock, host->max_clk / pre_div / div);
 
 	pre_div >>= 1;
 	div--;
-- 
cgit 


From 91a319779cb3a871d48e39cccf6cc72348eb1512 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Sun, 11 Aug 2013 14:35:08 +0200
Subject: ARM: sunxi: Split out the DT machines for sun6i and sun7i

The A20 and A31 SMP code have a different way of bringing up a new core.
This will prevent us from using the same set of smp_operations for the
two SoCs family.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 arch/arm/mach-sunxi/sunxi.c | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-sunxi/sunxi.c b/arch/arm/mach-sunxi/sunxi.c
index e79fb3469341..e0641dd7aebb 100644
--- a/arch/arm/mach-sunxi/sunxi.c
+++ b/arch/arm/mach-sunxi/sunxi.c
@@ -133,8 +133,6 @@ static const char * const sunxi_board_dt_compat[] = {
 	"allwinner,sun4i-a10",
 	"allwinner,sun5i-a10s",
 	"allwinner,sun5i-a13",
-	"allwinner,sun6i-a31",
-	"allwinner,sun7i-a20",
 	NULL,
 };
 
@@ -143,3 +141,25 @@ DT_MACHINE_START(SUNXI_DT, "Allwinner A1X (Device Tree)")
 	.init_time	= sunxi_timer_init,
 	.dt_compat	= sunxi_board_dt_compat,
 MACHINE_END
+
+static const char * const sun6i_board_dt_compat[] = {
+	"allwinner,sun6i-a31",
+	NULL,
+};
+
+DT_MACHINE_START(SUN6I_DT, "Allwinner sun6i (A31) Family")
+	.init_machine	= sunxi_dt_init,
+	.init_time	= sunxi_timer_init,
+	.dt_compat	= sun6i_board_dt_compat,
+MACHINE_END
+
+static const char * const sun7i_board_dt_compat[] = {
+	"allwinner,sun7i-a20",
+	NULL,
+};
+
+DT_MACHINE_START(SUN7I_DT, "Allwinner sun7i (A20) Family")
+	.init_machine	= sunxi_dt_init,
+	.init_time	= sunxi_timer_init,
+	.dt_compat	= sun7i_board_dt_compat,
+MACHINE_END
-- 
cgit 


From 53ea68873a68665c33ddd7332cf4cf39315f9cbc Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Sun, 11 Aug 2013 14:38:59 +0200
Subject: ARM: sunxi: Simplify restart setup code

Now that we have different machine definitions for different SoCs, we
can remove the DT lookup to get the restart hook we should be using, and
hardcode it in the machine definition instead.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 arch/arm/mach-sunxi/sunxi.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/arch/arm/mach-sunxi/sunxi.c b/arch/arm/mach-sunxi/sunxi.c
index e0641dd7aebb..f184f6c2fa33 100644
--- a/arch/arm/mach-sunxi/sunxi.c
+++ b/arch/arm/mach-sunxi/sunxi.c
@@ -93,14 +93,13 @@ static void sun6i_restart(enum reboot_mode mode, const char *cmd)
 }
 
 static struct of_device_id sunxi_restart_ids[] = {
-	{ .compatible = "allwinner,sun4i-wdt", .data = sun4i_restart },
-	{ .compatible = "allwinner,sun6i-wdt", .data = sun6i_restart },
+	{ .compatible = "allwinner,sun4i-wdt" },
+	{ .compatible = "allwinner,sun6i-wdt" },
 	{ /*sentinel*/ }
 };
 
 static void sunxi_setup_restart(void)
 {
-	const struct of_device_id *of_id;
 	struct device_node *np;
 
 	np = of_find_matching_node(NULL, sunxi_restart_ids);
@@ -109,11 +108,6 @@ static void sunxi_setup_restart(void)
 
 	wdt_base = of_iomap(np, 0);
 	WARN(!wdt_base, "failed to map watchdog base address");
-
-	of_id = of_match_node(sunxi_restart_ids, np);
-	WARN(!of_id, "restart function not available");
-
-	arm_pm_restart = of_id->data;
 }
 
 static void __init sunxi_timer_init(void)
@@ -140,6 +134,7 @@ DT_MACHINE_START(SUNXI_DT, "Allwinner A1X (Device Tree)")
 	.init_machine	= sunxi_dt_init,
 	.init_time	= sunxi_timer_init,
 	.dt_compat	= sunxi_board_dt_compat,
+	.restart	= sun4i_restart,
 MACHINE_END
 
 static const char * const sun6i_board_dt_compat[] = {
@@ -151,6 +146,7 @@ DT_MACHINE_START(SUN6I_DT, "Allwinner sun6i (A31) Family")
 	.init_machine	= sunxi_dt_init,
 	.init_time	= sunxi_timer_init,
 	.dt_compat	= sun6i_board_dt_compat,
+	.restart	= sun6i_restart,
 MACHINE_END
 
 static const char * const sun7i_board_dt_compat[] = {
@@ -162,4 +158,5 @@ DT_MACHINE_START(SUN7I_DT, "Allwinner sun7i (A20) Family")
 	.init_machine	= sunxi_dt_init,
 	.init_time	= sunxi_timer_init,
 	.dt_compat	= sun7i_board_dt_compat,
+	.restart	= sun4i_restart,
 MACHINE_END
-- 
cgit 


From 5e7856b31d2848195981880b7f7b8857bd89c967 Mon Sep 17 00:00:00 2001
From: Shahed Shaikh <shahed.shaikh@qlogic.com>
Date: Fri, 27 Sep 2013 01:42:26 -0400
Subject: netxen_nic: Print ULA information

This patch reads CAMRAM(0x178) where FW writes a key for ULA and non-ULA
adapter and based on the key, driver logs the message.

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 .../net/ethernet/qlogic/netxen/netxen_nic_hdr.h    |  1 +
 .../net/ethernet/qlogic/netxen/netxen_nic_main.c   | 28 ++++++++++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_hdr.h b/drivers/net/ethernet/qlogic/netxen/netxen_nic_hdr.h
index 32c790659f9c..0c64c82b9acf 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_hdr.h
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_hdr.h
@@ -958,6 +958,7 @@ enum {
 #define NETXEN_PEG_HALT_STATUS2 	(NETXEN_CAM_RAM(0xac))
 #define NX_CRB_DEV_REF_COUNT		(NETXEN_CAM_RAM(0x138))
 #define NX_CRB_DEV_STATE		(NETXEN_CAM_RAM(0x140))
+#define NETXEN_ULA_KEY			(NETXEN_CAM_RAM(0x178))
 
 /* MiniDIMM related macros */
 #define NETXEN_DIMM_CAPABILITY		(NETXEN_CAM_RAM(0x258))
diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
index cbd75f97ffb3..5ec21c50373c 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
@@ -1415,6 +1415,32 @@ netxen_setup_netdev(struct netxen_adapter *adapter,
 	return 0;
 }
 
+#define NETXEN_ULA_ADAPTER_KEY		(0xdaddad01)
+#define NETXEN_NON_ULA_ADAPTER_KEY	(0xdaddad00)
+
+static void netxen_read_ula_info(struct netxen_adapter *adapter)
+{
+	u32 temp;
+
+	/* Print ULA info only once for an adapter */
+	if (adapter->portnum != 0)
+		return;
+
+	temp = NXRD32(adapter, NETXEN_ULA_KEY);
+	switch (temp) {
+	case NETXEN_ULA_ADAPTER_KEY:
+		dev_info(&adapter->pdev->dev, "ULA adapter");
+		break;
+	case NETXEN_NON_ULA_ADAPTER_KEY:
+		dev_info(&adapter->pdev->dev, "non ULA adapter");
+		break;
+	default:
+		break;
+	}
+
+	return;
+}
+
 #ifdef CONFIG_PCIEAER
 static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
 {
@@ -1561,6 +1587,8 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		goto err_out_disable_msi;
 	}
 
+	netxen_read_ula_info(adapter);
+
 	err = netxen_setup_netdev(adapter, netdev);
 	if (err)
 		goto err_out_disable_msi;
-- 
cgit 


From fac87a8ecd02a99474d817b6784b6722736f9f0f Mon Sep 17 00:00:00 2001
From: Shahed Shaikh <shahed.shaikh@qlogic.com>
Date: Fri, 27 Sep 2013 01:42:27 -0400
Subject: netxen_nic: Update version to 4.0.82

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/netxen/netxen_nic.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic.h b/drivers/net/ethernet/qlogic/netxen/netxen_nic.h
index e8eff3e269e4..9adcdbb49476 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic.h
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic.h
@@ -53,8 +53,8 @@
 
 #define _NETXEN_NIC_LINUX_MAJOR 4
 #define _NETXEN_NIC_LINUX_MINOR 0
-#define _NETXEN_NIC_LINUX_SUBVERSION 81
-#define NETXEN_NIC_LINUX_VERSIONID  "4.0.81"
+#define _NETXEN_NIC_LINUX_SUBVERSION 82
+#define NETXEN_NIC_LINUX_VERSIONID  "4.0.82"
 
 #define NETXEN_VERSION_CODE(a, b, c)	(((a) << 24) + ((b) << 16) + (c))
 #define _major(v)	(((v) >> 24) & 0xff)
-- 
cgit 


From 8fb883f3e30065529e4f35d4b4f355193dcdb7a2 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Sat, 21 Sep 2013 00:09:31 +0100
Subject: FS-Cache: Add use/unuse/wake cookie wrappers

Add wrapper functions for dealing with cookie->n_active:

 (*) __fscache_use_cookie() to increment it.

 (*) __fscache_unuse_cookie() to decrement and test against zero.

 (*) __fscache_wake_unused_cookie() to wake up anyone waiting for it to reach
     zero.

The second and third are split so that the third can be done after cookie->lock
has been released in case the waiter wakes up whilst we're still holding it and
tries to get it.

We will need to wake-on-zero once the cookie disablement patch is applied
because it will then be possible to see n_active become zero without the cookie
being relinquished.

Also move the cookie usement out of fscache_attr_changed_op() and into
fscache_attr_changed() and the operation struct so that cookie disablement
will be able to track it.

Whilst we're at it, only increment n_active if we're about to do
fscache_submit_op() so that we don't have to deal with undoing it if anything
earlier fails.  Possibly this should be moved into fscache_submit_op() which
could look at FSCACHE_OP_UNUSE_COOKIE.

Signed-off-by: David Howells <dhowells@redhat.com>
---
 fs/fscache/cookie.c           |  7 +++++--
 fs/fscache/page.c             | 42 +++++++++++++++++++++++++++++++-----------
 include/linux/fscache-cache.h | 19 +++++++++++++++++--
 3 files changed, 53 insertions(+), 15 deletions(-)

diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c
index b2a86e324aac..d851aa555d28 100644
--- a/fs/fscache/cookie.c
+++ b/fs/fscache/cookie.c
@@ -568,6 +568,7 @@ int __fscache_check_consistency(struct fscache_cookie *cookie)
 {
 	struct fscache_operation *op;
 	struct fscache_object *object;
+	bool wake_cookie = false;
 	int ret;
 
 	_enter("%p,", cookie);
@@ -600,7 +601,7 @@ int __fscache_check_consistency(struct fscache_cookie *cookie)
 
 	op->debug_id = atomic_inc_return(&fscache_op_debug_id);
 
-	atomic_inc(&cookie->n_active);
+	__fscache_use_cookie(cookie);
 	if (fscache_submit_op(object, op) < 0)
 		goto submit_failed;
 
@@ -622,9 +623,11 @@ int __fscache_check_consistency(struct fscache_cookie *cookie)
 	return ret;
 
 submit_failed:
-	atomic_dec(&cookie->n_active);
+	wake_cookie = __fscache_unuse_cookie(cookie);
 inconsistent:
 	spin_unlock(&cookie->lock);
+	if (wake_cookie)
+		__fscache_wake_unused_cookie(cookie);
 	kfree(op);
 	_leave(" = -ESTALE");
 	return -ESTALE;
diff --git a/fs/fscache/page.c b/fs/fscache/page.c
index 73899c1c3449..0fe42a6d0e9c 100644
--- a/fs/fscache/page.c
+++ b/fs/fscache/page.c
@@ -163,12 +163,10 @@ static void fscache_attr_changed_op(struct fscache_operation *op)
 
 	fscache_stat(&fscache_n_attr_changed_calls);
 
-	if (fscache_object_is_active(object) &&
-	    fscache_use_cookie(object)) {
+	if (fscache_object_is_active(object)) {
 		fscache_stat(&fscache_n_cop_attr_changed);
 		ret = object->cache->ops->attr_changed(object);
 		fscache_stat_d(&fscache_n_cop_attr_changed);
-		fscache_unuse_cookie(object);
 		if (ret < 0)
 			fscache_abort_object(object);
 	}
@@ -184,6 +182,7 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
 {
 	struct fscache_operation *op;
 	struct fscache_object *object;
+	bool wake_cookie;
 
 	_enter("%p", cookie);
 
@@ -199,7 +198,9 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
 	}
 
 	fscache_operation_init(op, fscache_attr_changed_op, NULL);
-	op->flags = FSCACHE_OP_ASYNC | (1 << FSCACHE_OP_EXCLUSIVE);
+	op->flags = FSCACHE_OP_ASYNC |
+		(1 << FSCACHE_OP_EXCLUSIVE) |
+		(1 << FSCACHE_OP_UNUSE_COOKIE);
 
 	spin_lock(&cookie->lock);
 
@@ -208,6 +209,7 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
 	object = hlist_entry(cookie->backing_objects.first,
 			     struct fscache_object, cookie_link);
 
+	__fscache_use_cookie(cookie);
 	if (fscache_submit_exclusive_op(object, op) < 0)
 		goto nobufs;
 	spin_unlock(&cookie->lock);
@@ -217,8 +219,11 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
 	return 0;
 
 nobufs:
+	wake_cookie = __fscache_unuse_cookie(cookie);
 	spin_unlock(&cookie->lock);
 	kfree(op);
+	if (wake_cookie)
+		__fscache_wake_unused_cookie(cookie);
 	fscache_stat(&fscache_n_attr_changed_nobufs);
 	_leave(" = %d", -ENOBUFS);
 	return -ENOBUFS;
@@ -263,7 +268,6 @@ static struct fscache_retrieval *fscache_alloc_retrieval(
 	}
 
 	fscache_operation_init(&op->op, NULL, fscache_release_retrieval_op);
-	atomic_inc(&cookie->n_active);
 	op->op.flags	= FSCACHE_OP_MYTHREAD |
 		(1UL << FSCACHE_OP_WAITING) |
 		(1UL << FSCACHE_OP_UNUSE_COOKIE);
@@ -384,6 +388,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
 {
 	struct fscache_retrieval *op;
 	struct fscache_object *object;
+	bool wake_cookie = false;
 	int ret;
 
 	_enter("%p,%p,,,", cookie, page);
@@ -421,6 +426,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
 
 	ASSERT(test_bit(FSCACHE_OBJECT_IS_LOOKED_UP, &object->flags));
 
+	__fscache_use_cookie(cookie);
 	atomic_inc(&object->n_reads);
 	__set_bit(FSCACHE_OP_DEC_READ_CNT, &op->op.flags);
 
@@ -475,9 +481,11 @@ error:
 
 nobufs_unlock_dec:
 	atomic_dec(&object->n_reads);
+	wake_cookie = __fscache_unuse_cookie(cookie);
 nobufs_unlock:
 	spin_unlock(&cookie->lock);
-	atomic_dec(&cookie->n_active);
+	if (wake_cookie)
+		__fscache_wake_unused_cookie(cookie);
 	kfree(op);
 nobufs:
 	fscache_stat(&fscache_n_retrievals_nobufs);
@@ -514,6 +522,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
 {
 	struct fscache_retrieval *op;
 	struct fscache_object *object;
+	bool wake_cookie = false;
 	int ret;
 
 	_enter("%p,,%d,,,", cookie, *nr_pages);
@@ -547,6 +556,7 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
 	object = hlist_entry(cookie->backing_objects.first,
 			     struct fscache_object, cookie_link);
 
+	__fscache_use_cookie(cookie);
 	atomic_inc(&object->n_reads);
 	__set_bit(FSCACHE_OP_DEC_READ_CNT, &op->op.flags);
 
@@ -601,10 +611,12 @@ error:
 
 nobufs_unlock_dec:
 	atomic_dec(&object->n_reads);
+	wake_cookie = __fscache_unuse_cookie(cookie);
 nobufs_unlock:
 	spin_unlock(&cookie->lock);
-	atomic_dec(&cookie->n_active);
 	kfree(op);
+	if (wake_cookie)
+		__fscache_wake_unused_cookie(cookie);
 nobufs:
 	fscache_stat(&fscache_n_retrievals_nobufs);
 	_leave(" = -ENOBUFS");
@@ -626,6 +638,7 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
 {
 	struct fscache_retrieval *op;
 	struct fscache_object *object;
+	bool wake_cookie = false;
 	int ret;
 
 	_enter("%p,%p,,,", cookie, page);
@@ -658,8 +671,9 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
 	object = hlist_entry(cookie->backing_objects.first,
 			     struct fscache_object, cookie_link);
 
+	__fscache_use_cookie(cookie);
 	if (fscache_submit_op(object, &op->op) < 0)
-		goto nobufs_unlock;
+		goto nobufs_unlock_dec;
 	spin_unlock(&cookie->lock);
 
 	fscache_stat(&fscache_n_alloc_ops);
@@ -689,10 +703,13 @@ error:
 	_leave(" = %d", ret);
 	return ret;
 
+nobufs_unlock_dec:
+	wake_cookie = __fscache_unuse_cookie(cookie);
 nobufs_unlock:
 	spin_unlock(&cookie->lock);
-	atomic_dec(&cookie->n_active);
 	kfree(op);
+	if (wake_cookie)
+		__fscache_wake_unused_cookie(cookie);
 nobufs:
 	fscache_stat(&fscache_n_allocs_nobufs);
 	_leave(" = -ENOBUFS");
@@ -889,6 +906,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
 {
 	struct fscache_storage *op;
 	struct fscache_object *object;
+	bool wake_cookie = false;
 	int ret;
 
 	_enter("%p,%x,", cookie, (u32) page->flags);
@@ -957,7 +975,7 @@ int __fscache_write_page(struct fscache_cookie *cookie,
 	op->op.debug_id	= atomic_inc_return(&fscache_op_debug_id);
 	op->store_limit = object->store_limit;
 
-	atomic_inc(&cookie->n_active);
+	__fscache_use_cookie(cookie);
 	if (fscache_submit_op(object, &op->op) < 0)
 		goto submit_failed;
 
@@ -984,10 +1002,10 @@ already_pending:
 	return 0;
 
 submit_failed:
-	atomic_dec(&cookie->n_active);
 	spin_lock(&cookie->stores_lock);
 	radix_tree_delete(&cookie->stores, page->index);
 	spin_unlock(&cookie->stores_lock);
+	wake_cookie = __fscache_unuse_cookie(cookie);
 	page_cache_release(page);
 	ret = -ENOBUFS;
 	goto nobufs;
@@ -999,6 +1017,8 @@ nobufs:
 	spin_unlock(&cookie->lock);
 	radix_tree_preload_end();
 	kfree(op);
+	if (wake_cookie)
+		__fscache_wake_unused_cookie(cookie);
 	fscache_stat(&fscache_n_stores_nobufs);
 	_leave(" = -ENOBUFS");
 	return -ENOBUFS;
diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
index 7823e9ef995e..96a2b66f5968 100644
--- a/include/linux/fscache-cache.h
+++ b/include/linux/fscache-cache.h
@@ -511,6 +511,11 @@ static inline void fscache_end_io(struct fscache_retrieval *op,
 	op->end_io_func(page, op->context, error);
 }
 
+static inline void __fscache_use_cookie(struct fscache_cookie *cookie)
+{
+	atomic_inc(&cookie->n_active);
+}
+
 /**
  * fscache_use_cookie - Request usage of cookie attached to an object
  * @object: Object description
@@ -524,6 +529,16 @@ static inline bool fscache_use_cookie(struct fscache_object *object)
 	return atomic_inc_not_zero(&cookie->n_active) != 0;
 }
 
+static inline bool __fscache_unuse_cookie(struct fscache_cookie *cookie)
+{
+	return atomic_dec_and_test(&cookie->n_active);
+}
+
+static inline void __fscache_wake_unused_cookie(struct fscache_cookie *cookie)
+{
+	wake_up_atomic_t(&cookie->n_active);
+}
+
 /**
  * fscache_unuse_cookie - Cease usage of cookie attached to an object
  * @object: Object description
@@ -534,8 +549,8 @@ static inline bool fscache_use_cookie(struct fscache_object *object)
 static inline void fscache_unuse_cookie(struct fscache_object *object)
 {
 	struct fscache_cookie *cookie = object->cookie;
-	if (atomic_dec_and_test(&cookie->n_active))
-		wake_up_atomic_t(&cookie->n_active);
+	if (__fscache_unuse_cookie(cookie))
+		__fscache_wake_unused_cookie(cookie);
 }
 
 /*
-- 
cgit 


From 94d30ae90a00cafe686c1057be57f4885f963abf Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Sat, 21 Sep 2013 00:09:31 +0100
Subject: FS-Cache: Provide the ability to enable/disable cookies

Provide the ability to enable and disable fscache cookies.  A disabled cookie
will reject or ignore further requests to:

	Acquire a child cookie
	Invalidate and update backing objects
	Check the consistency of a backing object
	Allocate storage for backing page
	Read backing pages
	Write to backing pages

but still allows:

	Checks/waits on the completion of already in-progress objects
	Uncaching of pages
	Relinquishment of cookies

Two new operations are provided:

 (1) Disable a cookie:

	void fscache_disable_cookie(struct fscache_cookie *cookie,
				    bool invalidate);

     If the cookie is not already disabled, this locks the cookie against other
     dis/enablement ops, marks the cookie as being disabled, discards or
     invalidates any backing objects and waits for cessation of activity on any
     associated object.

     This is a wrapper around a chunk split out of fscache_relinquish_cookie(),
     but it reinitialises the cookie such that it can be reenabled.

     All possible failures are handled internally.  The caller should consider
     calling fscache_uncache_all_inode_pages() afterwards to make sure all page
     markings are cleared up.

 (2) Enable a cookie:

	void fscache_enable_cookie(struct fscache_cookie *cookie,
				   bool (*can_enable)(void *data),
				   void *data)

     If the cookie is not already enabled, this locks the cookie against other
     dis/enablement ops, invokes can_enable() and, if the cookie is not an
     index cookie, will begin the procedure of acquiring backing objects.

     The optional can_enable() function is passed the data argument and returns
     a ruling as to whether or not enablement should actually be permitted to
     begin.

     All possible failures are handled internally.  The cookie will only be
     marked as enabled if provisional backing objects are allocated.

A later patch will introduce these to NFS.  Cookie enablement during nfs_open()
is then contingent on i_writecount <= 0.  can_enable() checks for a race
between open(O_RDONLY) and open(O_WRONLY/O_RDWR).  This simplifies NFS's cookie
handling and allows us to get rid of open(O_RDONLY) accidentally introducing
caching to an inode that's open for writing already.

One operation has its API modified:

 (3) Acquire a cookie.

	struct fscache_cookie *fscache_acquire_cookie(
		struct fscache_cookie *parent,
		const struct fscache_cookie_def *def,
		void *netfs_data,
		bool enable);

     This now has an additional argument that indicates whether the requested
     cookie should be enabled by default.  It doesn't need the can_enable()
     function because the caller must prevent multiple calls for the same netfs
     object and it doesn't need to take the enablement lock because no one else
     can get at the cookie before this returns.

Signed-off-by: David Howells <dhowells@redhat.com
---
 Documentation/filesystems/caching/netfs-api.txt |  73 ++++++++--
 fs/9p/cache.c                                   |   6 +-
 fs/afs/cell.c                                   |   2 +-
 fs/afs/inode.c                                  |   2 +-
 fs/afs/vlocation.c                              |   3 +-
 fs/afs/volume.c                                 |   2 +-
 fs/cachefiles/interface.c                       |   2 +-
 fs/ceph/cache.c                                 |   4 +-
 fs/cifs/fscache.c                               |   8 +-
 fs/fscache/cookie.c                             | 186 +++++++++++++++++-------
 fs/fscache/fsdef.c                              |   1 +
 fs/fscache/netfs.c                              |   1 +
 fs/fscache/object.c                             |   7 +-
 fs/fscache/page.c                               |  17 ++-
 fs/nfs/fscache.c                                |   8 +-
 include/linux/fscache-cache.h                   |  31 +---
 include/linux/fscache.h                         | 113 ++++++++++++--
 17 files changed, 334 insertions(+), 132 deletions(-)

diff --git a/Documentation/filesystems/caching/netfs-api.txt b/Documentation/filesystems/caching/netfs-api.txt
index 11a0a40ce445..aed6b94160b1 100644
--- a/Documentation/filesystems/caching/netfs-api.txt
+++ b/Documentation/filesystems/caching/netfs-api.txt
@@ -29,15 +29,16 @@ This document contains the following sections:
 	 (6) Index registration
 	 (7) Data file registration
 	 (8) Miscellaneous object registration
-	 (9) Setting the data file size
+ 	 (9) Setting the data file size
 	(10) Page alloc/read/write
 	(11) Page uncaching
 	(12) Index and data file consistency
-	(13) Miscellaneous cookie operations
-	(14) Cookie unregistration
-	(15) Index invalidation
-	(16) Data file invalidation
-	(17) FS-Cache specific page flags.
+	(13) Cookie enablement
+	(14) Miscellaneous cookie operations
+	(15) Cookie unregistration
+	(16) Index invalidation
+	(17) Data file invalidation
+	(18) FS-Cache specific page flags.
 
 
 =============================
@@ -334,7 +335,8 @@ the path to the file:
 	struct fscache_cookie *
 	fscache_acquire_cookie(struct fscache_cookie *parent,
 			       const struct fscache_object_def *def,
-			       void *netfs_data);
+			       void *netfs_data,
+			       bool enable);
 
 This function creates an index entry in the index represented by parent,
 filling in the index entry by calling the operations pointed to by def.
@@ -350,6 +352,10 @@ object needs to be created somewhere down the hierarchy.  Furthermore, an index
 may be created in several different caches independently at different times.
 This is all handled transparently, and the netfs doesn't see any of it.
 
+A cookie will be created in the disabled state if enabled is false.  A cookie
+must be enabled to do anything with it.  A disabled cookie can be enabled by
+calling fscache_enable_cookie() (see below).
+
 For example, with AFS, a cell would be added to the primary index.  This index
 entry would have a dependent inode containing a volume location index for the
 volume mappings within this cell:
@@ -357,7 +363,7 @@ volume mappings within this cell:
 	cell->cache =
 		fscache_acquire_cookie(afs_cache_netfs.primary_index,
 				       &afs_cell_cache_index_def,
-				       cell);
+				       cell, true);
 
 Then when a volume location was accessed, it would be entered into the cell's
 index and an inode would be allocated that acts as a volume type and hash chain
@@ -366,7 +372,7 @@ combination:
 	vlocation->cache =
 		fscache_acquire_cookie(cell->cache,
 				       &afs_vlocation_cache_index_def,
-				       vlocation);
+				       vlocation, true);
 
 And then a particular flavour of volume (R/O for example) could be added to
 that index, creating another index for vnodes (AFS inode equivalents):
@@ -374,7 +380,7 @@ that index, creating another index for vnodes (AFS inode equivalents):
 	volume->cache =
 		fscache_acquire_cookie(vlocation->cache,
 				       &afs_volume_cache_index_def,
-				       volume);
+				       volume, true);
 
 
 ======================
@@ -388,7 +394,7 @@ the object definition should be something other than index type.
 	vnode->cache =
 		fscache_acquire_cookie(volume->cache,
 				       &afs_vnode_cache_object_def,
-				       vnode);
+				       vnode, true);
 
 
 =================================
@@ -404,7 +410,7 @@ it would be some other type of object such as a data file.
 	xattr->cache =
 		fscache_acquire_cookie(vnode->cache,
 				       &afs_xattr_cache_object_def,
-				       xattr);
+				       xattr, true);
 
 Miscellaneous objects might be used to store extended attributes or directory
 entries for example.
@@ -733,6 +739,47 @@ Note that partial updates may happen automatically at other times, such as when
 data blocks are added to a data file object.
 
 
+=================
+COOKIE ENABLEMENT
+=================
+
+Cookies exist in one of two states: enabled and disabled.  If a cookie is
+disabled, it ignores all attempts to acquire child cookies; check, update or
+invalidate its state; allocate, read or write backing pages - though it is
+still possible to uncache pages and relinquish the cookie.
+
+The initial enablement state is set by fscache_acquire_cookie(), but the cookie
+can be enabled or disabled later.  To disable a cookie, call:
+    
+	void fscache_disable_cookie(struct fscache_cookie *cookie,
+    				    bool invalidate);
+    
+If the cookie is not already disabled, this locks the cookie against other
+enable and disable ops, marks the cookie as being disabled, discards or
+invalidates any backing objects and waits for cessation of activity on any
+associated object before unlocking the cookie.
+
+All possible failures are handled internally.  The caller should consider
+calling fscache_uncache_all_inode_pages() afterwards to make sure all page
+markings are cleared up.
+    
+Cookies can be enabled or reenabled with:
+    
+    	void fscache_enable_cookie(struct fscache_cookie *cookie,
+    				   bool (*can_enable)(void *data),
+    				   void *data)
+    
+If the cookie is not already enabled, this locks the cookie against other
+enable and disable ops, invokes can_enable() and, if the cookie is not an index
+cookie, will begin the procedure of acquiring backing objects.
+
+The optional can_enable() function is passed the data argument and returns a
+ruling as to whether or not enablement should actually be permitted to begin.
+
+All possible failures are handled internally.  The cookie will only be marked
+as enabled if provisional backing objects are allocated.
+
+
 ===============================
 MISCELLANEOUS COOKIE OPERATIONS
 ===============================
@@ -778,7 +825,7 @@ COOKIE UNREGISTRATION
 To get rid of a cookie, this function should be called.
 
 	void fscache_relinquish_cookie(struct fscache_cookie *cookie,
-				       int retire);
+				       bool retire);
 
 If retire is non-zero, then the object will be marked for recycling, and all
 copies of it will be removed from all active caches in which it is present.
diff --git a/fs/9p/cache.c b/fs/9p/cache.c
index a9ea73d6dcf3..2b7a032c37bc 100644
--- a/fs/9p/cache.c
+++ b/fs/9p/cache.c
@@ -90,7 +90,7 @@ void v9fs_cache_session_get_cookie(struct v9fs_session_info *v9ses)
 
 	v9ses->fscache = fscache_acquire_cookie(v9fs_cache_netfs.primary_index,
 						&v9fs_cache_session_index_def,
-						v9ses);
+						v9ses, true);
 	p9_debug(P9_DEBUG_FSC, "session %p get cookie %p\n",
 		 v9ses, v9ses->fscache);
 }
@@ -204,7 +204,7 @@ void v9fs_cache_inode_get_cookie(struct inode *inode)
 	v9ses = v9fs_inode2v9ses(inode);
 	v9inode->fscache = fscache_acquire_cookie(v9ses->fscache,
 						  &v9fs_cache_inode_index_def,
-						  v9inode);
+						  v9inode, true);
 
 	p9_debug(P9_DEBUG_FSC, "inode %p get cookie %p\n",
 		 inode, v9inode->fscache);
@@ -271,7 +271,7 @@ void v9fs_cache_inode_reset_cookie(struct inode *inode)
 	v9ses = v9fs_inode2v9ses(inode);
 	v9inode->fscache = fscache_acquire_cookie(v9ses->fscache,
 						  &v9fs_cache_inode_index_def,
-						  v9inode);
+						  v9inode, true);
 	p9_debug(P9_DEBUG_FSC, "inode %p revalidating cookie old %p new %p\n",
 		 inode, old, v9inode->fscache);
 
diff --git a/fs/afs/cell.c b/fs/afs/cell.c
index 3c090b7555ea..ca0a3cf93791 100644
--- a/fs/afs/cell.c
+++ b/fs/afs/cell.c
@@ -179,7 +179,7 @@ struct afs_cell *afs_cell_create(const char *name, unsigned namesz,
 	/* put it up for caching (this never returns an error) */
 	cell->cache = fscache_acquire_cookie(afs_cache_netfs.primary_index,
 					     &afs_cell_cache_index_def,
-					     cell);
+					     cell, true);
 #endif
 
 	/* add to the cell lists */
diff --git a/fs/afs/inode.c b/fs/afs/inode.c
index 789bc253b5f6..ce25d755b7aa 100644
--- a/fs/afs/inode.c
+++ b/fs/afs/inode.c
@@ -259,7 +259,7 @@ struct inode *afs_iget(struct super_block *sb, struct key *key,
 #ifdef CONFIG_AFS_FSCACHE
 	vnode->cache = fscache_acquire_cookie(vnode->volume->cache,
 					      &afs_vnode_cache_index_def,
-					      vnode);
+					      vnode, true);
 #endif
 
 	ret = afs_inode_map_status(vnode, key);
diff --git a/fs/afs/vlocation.c b/fs/afs/vlocation.c
index 57bcb1596530..b6df2e83809f 100644
--- a/fs/afs/vlocation.c
+++ b/fs/afs/vlocation.c
@@ -308,7 +308,8 @@ static int afs_vlocation_fill_in_record(struct afs_vlocation *vl,
 	/* see if we have an in-cache copy (will set vl->valid if there is) */
 #ifdef CONFIG_AFS_FSCACHE
 	vl->cache = fscache_acquire_cookie(vl->cell->cache,
-					   &afs_vlocation_cache_index_def, vl);
+					   &afs_vlocation_cache_index_def, vl,
+					   true);
 #endif
 
 	if (vl->valid) {
diff --git a/fs/afs/volume.c b/fs/afs/volume.c
index 401eeb21869f..2b607257820c 100644
--- a/fs/afs/volume.c
+++ b/fs/afs/volume.c
@@ -131,7 +131,7 @@ struct afs_volume *afs_volume_lookup(struct afs_mount_params *params)
 #ifdef CONFIG_AFS_FSCACHE
 	volume->cache = fscache_acquire_cookie(vlocation->cache,
 					       &afs_volume_cache_index_def,
-					       volume);
+					       volume, true);
 #endif
 	afs_get_vlocation(vlocation);
 	volume->vlocation = vlocation;
diff --git a/fs/cachefiles/interface.c b/fs/cachefiles/interface.c
index 43eb5592cdea..00baf1419989 100644
--- a/fs/cachefiles/interface.c
+++ b/fs/cachefiles/interface.c
@@ -270,7 +270,7 @@ static void cachefiles_drop_object(struct fscache_object *_object)
 #endif
 
 	/* delete retired objects */
-	if (test_bit(FSCACHE_COOKIE_RETIRED, &object->fscache.cookie->flags) &&
+	if (test_bit(FSCACHE_OBJECT_RETIRED, &object->fscache.flags) &&
 	    _object != cache->cache.fsdef
 	    ) {
 		_debug("- retire object OBJ%x", object->fscache.debug_id);
diff --git a/fs/ceph/cache.c b/fs/ceph/cache.c
index 6bfe65e0b038..7db2e6ca4b8f 100644
--- a/fs/ceph/cache.c
+++ b/fs/ceph/cache.c
@@ -68,7 +68,7 @@ int ceph_fscache_register_fs(struct ceph_fs_client* fsc)
 {
 	fsc->fscache = fscache_acquire_cookie(ceph_cache_netfs.primary_index,
 					      &ceph_fscache_fsid_object_def,
-					      fsc);
+					      fsc, true);
 
 	if (fsc->fscache == NULL) {
 		pr_err("Unable to resgister fsid: %p fscache cookie", fsc);
@@ -204,7 +204,7 @@ void ceph_fscache_register_inode_cookie(struct ceph_fs_client* fsc,
 
 	ci->fscache = fscache_acquire_cookie(fsc->fscache,
 					     &ceph_fscache_inode_object_def,
-					     ci);
+					     ci, true);
 done:
 	mutex_unlock(&inode->i_mutex);
 
diff --git a/fs/cifs/fscache.c b/fs/cifs/fscache.c
index 2f4bc5a58054..fe2492d2a8fc 100644
--- a/fs/cifs/fscache.c
+++ b/fs/cifs/fscache.c
@@ -27,7 +27,7 @@ void cifs_fscache_get_client_cookie(struct TCP_Server_Info *server)
 {
 	server->fscache =
 		fscache_acquire_cookie(cifs_fscache_netfs.primary_index,
-				&cifs_fscache_server_index_def, server);
+				&cifs_fscache_server_index_def, server, true);
 	cifs_dbg(FYI, "%s: (0x%p/0x%p)\n",
 		 __func__, server, server->fscache);
 }
@@ -46,7 +46,7 @@ void cifs_fscache_get_super_cookie(struct cifs_tcon *tcon)
 
 	tcon->fscache =
 		fscache_acquire_cookie(server->fscache,
-				&cifs_fscache_super_index_def, tcon);
+				&cifs_fscache_super_index_def, tcon, true);
 	cifs_dbg(FYI, "%s: (0x%p/0x%p)\n",
 		 __func__, server->fscache, tcon->fscache);
 }
@@ -69,7 +69,7 @@ static void cifs_fscache_enable_inode_cookie(struct inode *inode)
 
 	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_FSCACHE) {
 		cifsi->fscache = fscache_acquire_cookie(tcon->fscache,
-				&cifs_fscache_inode_object_def, cifsi);
+				&cifs_fscache_inode_object_def, cifsi, true);
 		cifs_dbg(FYI, "%s: got FH cookie (0x%p/0x%p)\n",
 			 __func__, tcon->fscache, cifsi->fscache);
 	}
@@ -119,7 +119,7 @@ void cifs_fscache_reset_inode_cookie(struct inode *inode)
 		cifsi->fscache = fscache_acquire_cookie(
 					cifs_sb_master_tcon(cifs_sb)->fscache,
 					&cifs_fscache_inode_object_def,
-					cifsi);
+					cifsi, true);
 		cifs_dbg(FYI, "%s: new cookie 0x%p oldcookie 0x%p\n",
 			 __func__, cifsi->fscache, old);
 	}
diff --git a/fs/fscache/cookie.c b/fs/fscache/cookie.c
index d851aa555d28..29d7feb62cf7 100644
--- a/fs/fscache/cookie.c
+++ b/fs/fscache/cookie.c
@@ -58,15 +58,16 @@ void fscache_cookie_init_once(void *_cookie)
 struct fscache_cookie *__fscache_acquire_cookie(
 	struct fscache_cookie *parent,
 	const struct fscache_cookie_def *def,
-	void *netfs_data)
+	void *netfs_data,
+	bool enable)
 {
 	struct fscache_cookie *cookie;
 
 	BUG_ON(!def);
 
-	_enter("{%s},{%s},%p",
+	_enter("{%s},{%s},%p,%u",
 	       parent ? (char *) parent->def->name : "<no-parent>",
-	       def->name, netfs_data);
+	       def->name, netfs_data, enable);
 
 	fscache_stat(&fscache_n_acquires);
 
@@ -106,7 +107,7 @@ struct fscache_cookie *__fscache_acquire_cookie(
 	cookie->def		= def;
 	cookie->parent		= parent;
 	cookie->netfs_data	= netfs_data;
-	cookie->flags		= 0;
+	cookie->flags		= (1 << FSCACHE_COOKIE_NO_DATA_YET);
 
 	/* radix tree insertion won't use the preallocation pool unless it's
 	 * told it may not wait */
@@ -124,16 +125,22 @@ struct fscache_cookie *__fscache_acquire_cookie(
 		break;
 	}
 
-	/* if the object is an index then we need do nothing more here - we
-	 * create indices on disk when we need them as an index may exist in
-	 * multiple caches */
-	if (cookie->def->type != FSCACHE_COOKIE_TYPE_INDEX) {
-		if (fscache_acquire_non_index_cookie(cookie) < 0) {
-			atomic_dec(&parent->n_children);
-			__fscache_cookie_put(cookie);
-			fscache_stat(&fscache_n_acquires_nobufs);
-			_leave(" = NULL");
-			return NULL;
+	if (enable) {
+		/* if the object is an index then we need do nothing more here
+		 * - we create indices on disk when we need them as an index
+		 * may exist in multiple caches */
+		if (cookie->def->type != FSCACHE_COOKIE_TYPE_INDEX) {
+			if (fscache_acquire_non_index_cookie(cookie) == 0) {
+				set_bit(FSCACHE_COOKIE_ENABLED, &cookie->flags);
+			} else {
+				atomic_dec(&parent->n_children);
+				__fscache_cookie_put(cookie);
+				fscache_stat(&fscache_n_acquires_nobufs);
+				_leave(" = NULL");
+				return NULL;
+			}
+		} else {
+			set_bit(FSCACHE_COOKIE_ENABLED, &cookie->flags);
 		}
 	}
 
@@ -143,6 +150,39 @@ struct fscache_cookie *__fscache_acquire_cookie(
 }
 EXPORT_SYMBOL(__fscache_acquire_cookie);
 
+/*
+ * Enable a cookie to permit it to accept new operations.
+ */
+void __fscache_enable_cookie(struct fscache_cookie *cookie,
+			     bool (*can_enable)(void *data),
+			     void *data)
+{
+	_enter("%p", cookie);
+
+	wait_on_bit_lock(&cookie->flags, FSCACHE_COOKIE_ENABLEMENT_LOCK,
+			 fscache_wait_bit, TASK_UNINTERRUPTIBLE);
+
+	if (test_bit(FSCACHE_COOKIE_ENABLED, &cookie->flags))
+		goto out_unlock;
+
+	if (can_enable && !can_enable(data)) {
+		/* The netfs decided it didn't want to enable after all */
+	} else if (cookie->def->type != FSCACHE_COOKIE_TYPE_INDEX) {
+		/* Wait for outstanding disablement to complete */
+		__fscache_wait_on_invalidate(cookie);
+
+		if (fscache_acquire_non_index_cookie(cookie) == 0)
+			set_bit(FSCACHE_COOKIE_ENABLED, &cookie->flags);
+	} else {
+		set_bit(FSCACHE_COOKIE_ENABLED, &cookie->flags);
+	}
+
+out_unlock:
+	clear_bit_unlock(FSCACHE_COOKIE_ENABLEMENT_LOCK, &cookie->flags);
+	wake_up_bit(&cookie->flags, FSCACHE_COOKIE_ENABLEMENT_LOCK);
+}
+EXPORT_SYMBOL(__fscache_enable_cookie);
+
 /*
  * acquire a non-index cookie
  * - this must make sure the index chain is instantiated and instantiate the
@@ -157,7 +197,7 @@ static int fscache_acquire_non_index_cookie(struct fscache_cookie *cookie)
 
 	_enter("");
 
-	cookie->flags = 1 << FSCACHE_COOKIE_UNAVAILABLE;
+	set_bit(FSCACHE_COOKIE_UNAVAILABLE, &cookie->flags);
 
 	/* now we need to see whether the backing objects for this cookie yet
 	 * exist, if not there'll be nothing to search */
@@ -180,9 +220,7 @@ static int fscache_acquire_non_index_cookie(struct fscache_cookie *cookie)
 
 	_debug("cache %s", cache->tag->name);
 
-	cookie->flags =
-		(1 << FSCACHE_COOKIE_LOOKING_UP) |
-		(1 << FSCACHE_COOKIE_NO_DATA_YET);
+	set_bit(FSCACHE_COOKIE_LOOKING_UP, &cookie->flags);
 
 	/* ask the cache to allocate objects for this cookie and its parent
 	 * chain */
@@ -398,7 +436,8 @@ void __fscache_invalidate(struct fscache_cookie *cookie)
 	if (!hlist_empty(&cookie->backing_objects)) {
 		spin_lock(&cookie->lock);
 
-		if (!hlist_empty(&cookie->backing_objects) &&
+		if (fscache_cookie_enabled(cookie) &&
+		    !hlist_empty(&cookie->backing_objects) &&
 		    !test_and_set_bit(FSCACHE_COOKIE_INVALIDATING,
 				      &cookie->flags)) {
 			object = hlist_entry(cookie->backing_objects.first,
@@ -452,10 +491,14 @@ void __fscache_update_cookie(struct fscache_cookie *cookie)
 
 	spin_lock(&cookie->lock);
 
-	/* update the index entry on disk in each cache backing this cookie */
-	hlist_for_each_entry(object,
-			     &cookie->backing_objects, cookie_link) {
-		fscache_raise_event(object, FSCACHE_OBJECT_EV_UPDATE);
+	if (fscache_cookie_enabled(cookie)) {
+		/* update the index entry on disk in each cache backing this
+		 * cookie.
+		 */
+		hlist_for_each_entry(object,
+				     &cookie->backing_objects, cookie_link) {
+			fscache_raise_event(object, FSCACHE_OBJECT_EV_UPDATE);
+		}
 	}
 
 	spin_unlock(&cookie->lock);
@@ -464,28 +507,14 @@ void __fscache_update_cookie(struct fscache_cookie *cookie)
 EXPORT_SYMBOL(__fscache_update_cookie);
 
 /*
- * release a cookie back to the cache
- * - the object will be marked as recyclable on disk if retire is true
- * - all dependents of this cookie must have already been unregistered
- *   (indices/files/pages)
+ * Disable a cookie to stop it from accepting new requests from the netfs.
  */
-void __fscache_relinquish_cookie(struct fscache_cookie *cookie, int retire)
+void __fscache_disable_cookie(struct fscache_cookie *cookie, bool invalidate)
 {
 	struct fscache_object *object;
+	bool awaken = false;
 
-	fscache_stat(&fscache_n_relinquishes);
-	if (retire)
-		fscache_stat(&fscache_n_relinquishes_retire);
-
-	if (!cookie) {
-		fscache_stat(&fscache_n_relinquishes_null);
-		_leave(" [no cookie]");
-		return;
-	}
-
-	_enter("%p{%s,%p,%d},%d",
-	       cookie, cookie->def->name, cookie->netfs_data,
-	       atomic_read(&cookie->n_active), retire);
+	_enter("%p,%u", cookie, invalidate);
 
 	ASSERTCMP(atomic_read(&cookie->n_active), >, 0);
 
@@ -495,24 +524,82 @@ void __fscache_relinquish_cookie(struct fscache_cookie *cookie, int retire)
 		BUG();
 	}
 
-	/* No further netfs-accessing operations on this cookie permitted */
-	set_bit(FSCACHE_COOKIE_RELINQUISHED, &cookie->flags);
-	if (retire)
-		set_bit(FSCACHE_COOKIE_RETIRED, &cookie->flags);
+	wait_on_bit_lock(&cookie->flags, FSCACHE_COOKIE_ENABLEMENT_LOCK,
+			 fscache_wait_bit, TASK_UNINTERRUPTIBLE);
+	if (!test_and_clear_bit(FSCACHE_COOKIE_ENABLED, &cookie->flags))
+		goto out_unlock_enable;
+
+	/* If the cookie is being invalidated, wait for that to complete first
+	 * so that we can reuse the flag.
+	 */
+	__fscache_wait_on_invalidate(cookie);
+
+	/* Dispose of the backing objects */
+	set_bit(FSCACHE_COOKIE_INVALIDATING, &cookie->flags);
 
 	spin_lock(&cookie->lock);
-	hlist_for_each_entry(object, &cookie->backing_objects, cookie_link) {
-		fscache_raise_event(object, FSCACHE_OBJECT_EV_KILL);
+	if (!hlist_empty(&cookie->backing_objects)) {
+		hlist_for_each_entry(object, &cookie->backing_objects, cookie_link) {
+			if (invalidate)
+				set_bit(FSCACHE_OBJECT_RETIRED, &object->flags);
+			fscache_raise_event(object, FSCACHE_OBJECT_EV_KILL);
+		}
+	} else {
+		if (test_and_clear_bit(FSCACHE_COOKIE_INVALIDATING, &cookie->flags))
+			awaken = true;
 	}
 	spin_unlock(&cookie->lock);
+	if (awaken)
+		wake_up_bit(&cookie->flags, FSCACHE_COOKIE_INVALIDATING);
 
 	/* Wait for cessation of activity requiring access to the netfs (when
-	 * n_active reaches 0).
+	 * n_active reaches 0).  This makes sure outstanding reads and writes
+	 * have completed.
 	 */
 	if (!atomic_dec_and_test(&cookie->n_active))
 		wait_on_atomic_t(&cookie->n_active, fscache_wait_atomic_t,
 				 TASK_UNINTERRUPTIBLE);
 
+	/* Reset the cookie state if it wasn't relinquished */
+	if (!test_bit(FSCACHE_COOKIE_RELINQUISHED, &cookie->flags)) {
+		atomic_inc(&cookie->n_active);
+		set_bit(FSCACHE_COOKIE_NO_DATA_YET, &cookie->flags);
+	}
+
+out_unlock_enable:
+	clear_bit_unlock(FSCACHE_COOKIE_ENABLEMENT_LOCK, &cookie->flags);
+	wake_up_bit(&cookie->flags, FSCACHE_COOKIE_ENABLEMENT_LOCK);
+	_leave("");
+}
+EXPORT_SYMBOL(__fscache_disable_cookie);
+
+/*
+ * release a cookie back to the cache
+ * - the object will be marked as recyclable on disk if retire is true
+ * - all dependents of this cookie must have already been unregistered
+ *   (indices/files/pages)
+ */
+void __fscache_relinquish_cookie(struct fscache_cookie *cookie, bool retire)
+{
+	fscache_stat(&fscache_n_relinquishes);
+	if (retire)
+		fscache_stat(&fscache_n_relinquishes_retire);
+
+	if (!cookie) {
+		fscache_stat(&fscache_n_relinquishes_null);
+		_leave(" [no cookie]");
+		return;
+	}
+
+	_enter("%p{%s,%p,%d},%d",
+	       cookie, cookie->def->name, cookie->netfs_data,
+	       atomic_read(&cookie->n_active), retire);
+
+	/* No further netfs-accessing operations on this cookie permitted */
+	set_bit(FSCACHE_COOKIE_RELINQUISHED, &cookie->flags);
+
+	__fscache_disable_cookie(cookie, retire);
+
 	/* Clear pointers back to the netfs */
 	cookie->netfs_data	= NULL;
 	cookie->def		= NULL;
@@ -592,7 +679,8 @@ int __fscache_check_consistency(struct fscache_cookie *cookie)
 
 	spin_lock(&cookie->lock);
 
-	if (hlist_empty(&cookie->backing_objects))
+	if (!fscache_cookie_enabled(cookie) ||
+	    hlist_empty(&cookie->backing_objects))
 		goto inconsistent;
 	object = hlist_entry(cookie->backing_objects.first,
 			     struct fscache_object, cookie_link);
diff --git a/fs/fscache/fsdef.c b/fs/fscache/fsdef.c
index 10a2ade0bdf8..5a117df2a9ef 100644
--- a/fs/fscache/fsdef.c
+++ b/fs/fscache/fsdef.c
@@ -59,6 +59,7 @@ struct fscache_cookie fscache_fsdef_index = {
 	.lock		= __SPIN_LOCK_UNLOCKED(fscache_fsdef_index.lock),
 	.backing_objects = HLIST_HEAD_INIT,
 	.def		= &fscache_fsdef_index_def,
+	.flags		= 1 << FSCACHE_COOKIE_ENABLED,
 };
 EXPORT_SYMBOL(fscache_fsdef_index);
 
diff --git a/fs/fscache/netfs.c b/fs/fscache/netfs.c
index b1bb6117473a..989f39401547 100644
--- a/fs/fscache/netfs.c
+++ b/fs/fscache/netfs.c
@@ -45,6 +45,7 @@ int __fscache_register_netfs(struct fscache_netfs *netfs)
 	netfs->primary_index->def		= &fscache_fsdef_netfs_def;
 	netfs->primary_index->parent		= &fscache_fsdef_index;
 	netfs->primary_index->netfs_data	= netfs;
+	netfs->primary_index->flags		= 1 << FSCACHE_COOKIE_ENABLED;
 
 	atomic_inc(&netfs->primary_index->parent->usage);
 	atomic_inc(&netfs->primary_index->parent->n_children);
diff --git a/fs/fscache/object.c b/fs/fscache/object.c
index 86d75a60b20c..dcb821617774 100644
--- a/fs/fscache/object.c
+++ b/fs/fscache/object.c
@@ -495,6 +495,7 @@ void fscache_object_lookup_negative(struct fscache_object *object)
 		 * returning ENODATA.
 		 */
 		set_bit(FSCACHE_COOKIE_NO_DATA_YET, &cookie->flags);
+		clear_bit(FSCACHE_COOKIE_UNAVAILABLE, &cookie->flags);
 
 		_debug("wake up lookup %p", &cookie->flags);
 		clear_bit_unlock(FSCACHE_COOKIE_LOOKING_UP, &cookie->flags);
@@ -527,6 +528,7 @@ void fscache_obtained_object(struct fscache_object *object)
 
 		/* We do (presumably) have data */
 		clear_bit_unlock(FSCACHE_COOKIE_NO_DATA_YET, &cookie->flags);
+		clear_bit(FSCACHE_COOKIE_UNAVAILABLE, &cookie->flags);
 
 		/* Allow write requests to begin stacking up and read requests
 		 * to begin shovelling data.
@@ -679,7 +681,8 @@ static const struct fscache_state *fscache_drop_object(struct fscache_object *ob
 	 */
 	spin_lock(&cookie->lock);
 	hlist_del_init(&object->cookie_link);
-	if (test_and_clear_bit(FSCACHE_COOKIE_INVALIDATING, &cookie->flags))
+	if (hlist_empty(&cookie->backing_objects) &&
+	    test_and_clear_bit(FSCACHE_COOKIE_INVALIDATING, &cookie->flags))
 		awaken = true;
 	spin_unlock(&cookie->lock);
 
@@ -927,7 +930,7 @@ static const struct fscache_state *_fscache_invalidate_object(struct fscache_obj
 	 */
 	if (!fscache_use_cookie(object)) {
 		ASSERT(object->cookie->stores.rnode == NULL);
-		set_bit(FSCACHE_COOKIE_RETIRED, &cookie->flags);
+		set_bit(FSCACHE_OBJECT_RETIRED, &object->flags);
 		_leave(" [no cookie]");
 		return transit_to(KILL_OBJECT);
 	}
diff --git a/fs/fscache/page.c b/fs/fscache/page.c
index 0fe42a6d0e9c..7f5c658af755 100644
--- a/fs/fscache/page.c
+++ b/fs/fscache/page.c
@@ -204,7 +204,8 @@ int __fscache_attr_changed(struct fscache_cookie *cookie)
 
 	spin_lock(&cookie->lock);
 
-	if (hlist_empty(&cookie->backing_objects))
+	if (!fscache_cookie_enabled(cookie) ||
+	    hlist_empty(&cookie->backing_objects))
 		goto nobufs;
 	object = hlist_entry(cookie->backing_objects.first,
 			     struct fscache_object, cookie_link);
@@ -410,7 +411,7 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
 		return -ERESTARTSYS;
 
 	op = fscache_alloc_retrieval(cookie, page->mapping,
-				     end_io_func,context);
+				     end_io_func, context);
 	if (!op) {
 		_leave(" = -ENOMEM");
 		return -ENOMEM;
@@ -419,7 +420,8 @@ int __fscache_read_or_alloc_page(struct fscache_cookie *cookie,
 
 	spin_lock(&cookie->lock);
 
-	if (hlist_empty(&cookie->backing_objects))
+	if (!fscache_cookie_enabled(cookie) ||
+	    hlist_empty(&cookie->backing_objects))
 		goto nobufs_unlock;
 	object = hlist_entry(cookie->backing_objects.first,
 			     struct fscache_object, cookie_link);
@@ -551,7 +553,8 @@ int __fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
 
 	spin_lock(&cookie->lock);
 
-	if (hlist_empty(&cookie->backing_objects))
+	if (!fscache_cookie_enabled(cookie) ||
+	    hlist_empty(&cookie->backing_objects))
 		goto nobufs_unlock;
 	object = hlist_entry(cookie->backing_objects.first,
 			     struct fscache_object, cookie_link);
@@ -666,7 +669,8 @@ int __fscache_alloc_page(struct fscache_cookie *cookie,
 
 	spin_lock(&cookie->lock);
 
-	if (hlist_empty(&cookie->backing_objects))
+	if (!fscache_cookie_enabled(cookie) ||
+	    hlist_empty(&cookie->backing_objects))
 		goto nobufs_unlock;
 	object = hlist_entry(cookie->backing_objects.first,
 			     struct fscache_object, cookie_link);
@@ -938,7 +942,8 @@ int __fscache_write_page(struct fscache_cookie *cookie,
 	ret = -ENOBUFS;
 	spin_lock(&cookie->lock);
 
-	if (hlist_empty(&cookie->backing_objects))
+	if (!fscache_cookie_enabled(cookie) ||
+	    hlist_empty(&cookie->backing_objects))
 		goto nobufs;
 	object = hlist_entry(cookie->backing_objects.first,
 			     struct fscache_object, cookie_link);
diff --git a/fs/nfs/fscache.c b/fs/nfs/fscache.c
index 24d1d1c5fcaf..cd6e7efd4305 100644
--- a/fs/nfs/fscache.c
+++ b/fs/nfs/fscache.c
@@ -39,7 +39,7 @@ void nfs_fscache_get_client_cookie(struct nfs_client *clp)
 	/* create a cache index for looking up filehandles */
 	clp->fscache = fscache_acquire_cookie(nfs_fscache_netfs.primary_index,
 					      &nfs_fscache_server_index_def,
-					      clp);
+					      clp, true);
 	dfprintk(FSCACHE, "NFS: get client cookie (0x%p/0x%p)\n",
 		 clp, clp->fscache);
 }
@@ -139,7 +139,7 @@ void nfs_fscache_get_super_cookie(struct super_block *sb, const char *uniq, int
 	/* create a cache index for looking up filehandles */
 	nfss->fscache = fscache_acquire_cookie(nfss->nfs_client->fscache,
 					       &nfs_fscache_super_index_def,
-					       nfss);
+					       nfss, true);
 	dfprintk(FSCACHE, "NFS: get superblock cookie (0x%p/0x%p)\n",
 		 nfss, nfss->fscache);
 	return;
@@ -200,7 +200,7 @@ static void nfs_fscache_enable_inode_cookie(struct inode *inode)
 		nfsi->fscache = fscache_acquire_cookie(
 			NFS_SB(sb)->fscache,
 			&nfs_fscache_inode_object_def,
-			nfsi);
+			nfsi, true);
 
 		dfprintk(FSCACHE, "NFS: get FH cookie (0x%p/0x%p/0x%p)\n",
 			 sb, nfsi, nfsi->fscache);
@@ -327,7 +327,7 @@ void nfs_fscache_reset_inode_cookie(struct inode *inode)
 		nfsi->fscache = fscache_acquire_cookie(
 			nfss->nfs_client->fscache,
 			&nfs_fscache_inode_object_def,
-			nfsi);
+			nfsi, true);
 
 		dfprintk(FSCACHE,
 			 "NFS: revalidation new cookie (0x%p/0x%p/0x%p/0x%p)\n",
diff --git a/include/linux/fscache-cache.h b/include/linux/fscache-cache.h
index 96a2b66f5968..771484993ca7 100644
--- a/include/linux/fscache-cache.h
+++ b/include/linux/fscache-cache.h
@@ -308,36 +308,6 @@ struct fscache_cache_ops {
 	void (*dissociate_pages)(struct fscache_cache *cache);
 };
 
-/*
- * data file or index object cookie
- * - a file will only appear in one cache
- * - a request to cache a file may or may not be honoured, subject to
- *   constraints such as disk space
- * - indices are created on disk just-in-time
- */
-struct fscache_cookie {
-	atomic_t			usage;		/* number of users of this cookie */
-	atomic_t			n_children;	/* number of children of this cookie */
-	atomic_t			n_active;	/* number of active users of netfs ptrs */
-	spinlock_t			lock;
-	spinlock_t			stores_lock;	/* lock on page store tree */
-	struct hlist_head		backing_objects; /* object(s) backing this file/index */
-	const struct fscache_cookie_def	*def;		/* definition */
-	struct fscache_cookie		*parent;	/* parent of this entry */
-	void				*netfs_data;	/* back pointer to netfs */
-	struct radix_tree_root		stores;		/* pages to be stored on this cookie */
-#define FSCACHE_COOKIE_PENDING_TAG	0		/* pages tag: pending write to cache */
-#define FSCACHE_COOKIE_STORING_TAG	1		/* pages tag: writing to cache */
-
-	unsigned long			flags;
-#define FSCACHE_COOKIE_LOOKING_UP	0	/* T if non-index cookie being looked up still */
-#define FSCACHE_COOKIE_NO_DATA_YET	1	/* T if new object with no cached data yet */
-#define FSCACHE_COOKIE_UNAVAILABLE	2	/* T if cookie is unavailable (error, etc) */
-#define FSCACHE_COOKIE_INVALIDATING	3	/* T if cookie is being invalidated */
-#define FSCACHE_COOKIE_RELINQUISHED	4	/* T if cookie has been relinquished */
-#define FSCACHE_COOKIE_RETIRED		5	/* T if cookie was retired */
-};
-
 extern struct fscache_cookie fscache_fsdef_index;
 
 /*
@@ -400,6 +370,7 @@ struct fscache_object {
 #define FSCACHE_OBJECT_IS_LIVE		3	/* T if object is not withdrawn or relinquished */
 #define FSCACHE_OBJECT_IS_LOOKED_UP	4	/* T if object has been looked up */
 #define FSCACHE_OBJECT_IS_AVAILABLE	5	/* T if object has become active */
+#define FSCACHE_OBJECT_RETIRED		6	/* T if object was retired on relinquishment */
 
 	struct list_head	cache_link;	/* link in cache->object_list */
 	struct hlist_node	cookie_link;	/* link in cookie->backing_objects */
diff --git a/include/linux/fscache.h b/include/linux/fscache.h
index 19b46458e4e8..115bb81912cc 100644
--- a/include/linux/fscache.h
+++ b/include/linux/fscache.h
@@ -166,6 +166,42 @@ struct fscache_netfs {
 	struct list_head		link;		/* internal link */
 };
 
+/*
+ * data file or index object cookie
+ * - a file will only appear in one cache
+ * - a request to cache a file may or may not be honoured, subject to
+ *   constraints such as disk space
+ * - indices are created on disk just-in-time
+ */
+struct fscache_cookie {
+	atomic_t			usage;		/* number of users of this cookie */
+	atomic_t			n_children;	/* number of children of this cookie */
+	atomic_t			n_active;	/* number of active users of netfs ptrs */
+	spinlock_t			lock;
+	spinlock_t			stores_lock;	/* lock on page store tree */
+	struct hlist_head		backing_objects; /* object(s) backing this file/index */
+	const struct fscache_cookie_def	*def;		/* definition */
+	struct fscache_cookie		*parent;	/* parent of this entry */
+	void				*netfs_data;	/* back pointer to netfs */
+	struct radix_tree_root		stores;		/* pages to be stored on this cookie */
+#define FSCACHE_COOKIE_PENDING_TAG	0		/* pages tag: pending write to cache */
+#define FSCACHE_COOKIE_STORING_TAG	1		/* pages tag: writing to cache */
+
+	unsigned long			flags;
+#define FSCACHE_COOKIE_LOOKING_UP	0	/* T if non-index cookie being looked up still */
+#define FSCACHE_COOKIE_NO_DATA_YET	1	/* T if new object with no cached data yet */
+#define FSCACHE_COOKIE_UNAVAILABLE	2	/* T if cookie is unavailable (error, etc) */
+#define FSCACHE_COOKIE_INVALIDATING	3	/* T if cookie is being invalidated */
+#define FSCACHE_COOKIE_RELINQUISHED	4	/* T if cookie has been relinquished */
+#define FSCACHE_COOKIE_ENABLED		5	/* T if cookie is enabled */
+#define FSCACHE_COOKIE_ENABLEMENT_LOCK	6	/* T if cookie is being en/disabled */
+};
+
+static inline bool fscache_cookie_enabled(struct fscache_cookie *cookie)
+{
+	return test_bit(FSCACHE_COOKIE_ENABLED, &cookie->flags);
+}
+
 /*
  * slow-path functions for when there is actually caching available, and the
  * netfs does actually have a valid token
@@ -181,8 +217,8 @@ extern void __fscache_release_cache_tag(struct fscache_cache_tag *);
 extern struct fscache_cookie *__fscache_acquire_cookie(
 	struct fscache_cookie *,
 	const struct fscache_cookie_def *,
-	void *);
-extern void __fscache_relinquish_cookie(struct fscache_cookie *, int);
+	void *, bool);
+extern void __fscache_relinquish_cookie(struct fscache_cookie *, bool);
 extern int __fscache_check_consistency(struct fscache_cookie *);
 extern void __fscache_update_cookie(struct fscache_cookie *);
 extern int __fscache_attr_changed(struct fscache_cookie *);
@@ -211,6 +247,9 @@ extern void __fscache_uncache_all_inode_pages(struct fscache_cookie *,
 					      struct inode *);
 extern void __fscache_readpages_cancel(struct fscache_cookie *cookie,
 				       struct list_head *pages);
+extern void __fscache_disable_cookie(struct fscache_cookie *, bool);
+extern void __fscache_enable_cookie(struct fscache_cookie *,
+				    bool (*)(void *), void *);
 
 /**
  * fscache_register_netfs - Register a filesystem as desiring caching services
@@ -289,6 +328,7 @@ void fscache_release_cache_tag(struct fscache_cache_tag *tag)
  * @def: A description of the cache object, including callback operations
  * @netfs_data: An arbitrary piece of data to be kept in the cookie to
  * represent the cache object to the netfs
+ * @enable: Whether or not to enable a data cookie immediately
  *
  * This function is used to inform FS-Cache about part of an index hierarchy
  * that can be used to locate files.  This is done by requesting a cookie for
@@ -301,10 +341,12 @@ static inline
 struct fscache_cookie *fscache_acquire_cookie(
 	struct fscache_cookie *parent,
 	const struct fscache_cookie_def *def,
-	void *netfs_data)
+	void *netfs_data,
+	bool enable)
 {
-	if (fscache_cookie_valid(parent))
-		return __fscache_acquire_cookie(parent, def, netfs_data);
+	if (fscache_cookie_valid(parent) && fscache_cookie_enabled(parent))
+		return __fscache_acquire_cookie(parent, def, netfs_data,
+						enable);
 	else
 		return NULL;
 }
@@ -322,7 +364,7 @@ struct fscache_cookie *fscache_acquire_cookie(
  * description.
  */
 static inline
-void fscache_relinquish_cookie(struct fscache_cookie *cookie, int retire)
+void fscache_relinquish_cookie(struct fscache_cookie *cookie, bool retire)
 {
 	if (fscache_cookie_valid(cookie))
 		__fscache_relinquish_cookie(cookie, retire);
@@ -341,7 +383,7 @@ void fscache_relinquish_cookie(struct fscache_cookie *cookie, int retire)
 static inline
 int fscache_check_consistency(struct fscache_cookie *cookie)
 {
-	if (fscache_cookie_valid(cookie))
+	if (fscache_cookie_valid(cookie) && fscache_cookie_enabled(cookie))
 		return __fscache_check_consistency(cookie);
 	else
 		return 0;
@@ -360,7 +402,7 @@ int fscache_check_consistency(struct fscache_cookie *cookie)
 static inline
 void fscache_update_cookie(struct fscache_cookie *cookie)
 {
-	if (fscache_cookie_valid(cookie))
+	if (fscache_cookie_valid(cookie) && fscache_cookie_enabled(cookie))
 		__fscache_update_cookie(cookie);
 }
 
@@ -407,7 +449,7 @@ void fscache_unpin_cookie(struct fscache_cookie *cookie)
 static inline
 int fscache_attr_changed(struct fscache_cookie *cookie)
 {
-	if (fscache_cookie_valid(cookie))
+	if (fscache_cookie_valid(cookie) && fscache_cookie_enabled(cookie))
 		return __fscache_attr_changed(cookie);
 	else
 		return -ENOBUFS;
@@ -429,7 +471,7 @@ int fscache_attr_changed(struct fscache_cookie *cookie)
 static inline
 void fscache_invalidate(struct fscache_cookie *cookie)
 {
-	if (fscache_cookie_valid(cookie))
+	if (fscache_cookie_valid(cookie) && fscache_cookie_enabled(cookie))
 		__fscache_invalidate(cookie);
 }
 
@@ -503,7 +545,7 @@ int fscache_read_or_alloc_page(struct fscache_cookie *cookie,
 			       void *context,
 			       gfp_t gfp)
 {
-	if (fscache_cookie_valid(cookie))
+	if (fscache_cookie_valid(cookie) && fscache_cookie_enabled(cookie))
 		return __fscache_read_or_alloc_page(cookie, page, end_io_func,
 						    context, gfp);
 	else
@@ -554,7 +596,7 @@ int fscache_read_or_alloc_pages(struct fscache_cookie *cookie,
 				void *context,
 				gfp_t gfp)
 {
-	if (fscache_cookie_valid(cookie))
+	if (fscache_cookie_valid(cookie) && fscache_cookie_enabled(cookie))
 		return __fscache_read_or_alloc_pages(cookie, mapping, pages,
 						     nr_pages, end_io_func,
 						     context, gfp);
@@ -585,7 +627,7 @@ int fscache_alloc_page(struct fscache_cookie *cookie,
 		       struct page *page,
 		       gfp_t gfp)
 {
-	if (fscache_cookie_valid(cookie))
+	if (fscache_cookie_valid(cookie) && fscache_cookie_enabled(cookie))
 		return __fscache_alloc_page(cookie, page, gfp);
 	else
 		return -ENOBUFS;
@@ -634,7 +676,7 @@ int fscache_write_page(struct fscache_cookie *cookie,
 		       struct page *page,
 		       gfp_t gfp)
 {
-	if (fscache_cookie_valid(cookie))
+	if (fscache_cookie_valid(cookie) && fscache_cookie_enabled(cookie))
 		return __fscache_write_page(cookie, page, gfp);
 	else
 		return -ENOBUFS;
@@ -744,4 +786,47 @@ void fscache_uncache_all_inode_pages(struct fscache_cookie *cookie,
 		__fscache_uncache_all_inode_pages(cookie, inode);
 }
 
+/**
+ * fscache_disable_cookie - Disable a cookie
+ * @cookie: The cookie representing the cache object
+ * @invalidate: Invalidate the backing object
+ *
+ * Disable a cookie from accepting further alloc, read, write, invalidate,
+ * update or acquire operations.  Outstanding operations can still be waited
+ * upon and pages can still be uncached and the cookie relinquished.
+ *
+ * This will not return until all outstanding operations have completed.
+ *
+ * If @invalidate is set, then the backing object will be invalidated and
+ * detached, otherwise it will just be detached.
+ */
+static inline
+void fscache_disable_cookie(struct fscache_cookie *cookie, bool invalidate)
+{
+	if (fscache_cookie_valid(cookie) && fscache_cookie_enabled(cookie))
+		__fscache_disable_cookie(cookie, invalidate);
+}
+
+/**
+ * fscache_enable_cookie - Reenable a cookie
+ * @cookie: The cookie representing the cache object
+ * @can_enable: A function to permit enablement once lock is held
+ * @data: Data for can_enable()
+ *
+ * Reenable a previously disabled cookie, allowing it to accept further alloc,
+ * read, write, invalidate, update or acquire operations.  An attempt will be
+ * made to immediately reattach the cookie to a backing object.
+ *
+ * The can_enable() function is called (if not NULL) once the enablement lock
+ * is held to rule on whether enablement is still permitted to go ahead.
+ */
+static inline
+void fscache_enable_cookie(struct fscache_cookie *cookie,
+			   bool (*can_enable)(void *data),
+			   void *data)
+{
+	if (fscache_cookie_valid(cookie) && !fscache_cookie_enabled(cookie))
+		__fscache_enable_cookie(cookie, can_enable, data);
+}
+
 #endif /* _LINUX_FSCACHE_H */
-- 
cgit 


From f1fe29b4a02d0805aa7d0ff6b73410a9f9316d69 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 27 Sep 2013 11:20:03 +0100
Subject: NFS: Use i_writecount to control whether to get an fscache cookie in
 nfs_open()

Use i_writecount to control whether to get an fscache cookie in nfs_open() as
NFS does not do write caching yet.  I *think* this is the cause of a problem
encountered by Mark Moseley whereby __fscache_uncache_page() gets a NULL
pointer dereference because cookie->def is NULL:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000010
IP: [<ffffffff812a1903>] __fscache_uncache_page+0x23/0x160
PGD 0
Thread overran stack, or stack corrupted
Oops: 0000 [#1] SMP
Modules linked in: ...
CPU: 7 PID: 18993 Comm: php Not tainted 3.11.1 #1
Hardware name: Dell Inc. PowerEdge R420/072XWF, BIOS 1.3.5 08/21/2012
task: ffff8804203460c0 ti: ffff880420346640
RIP: 0010:[<ffffffff812a1903>] __fscache_uncache_page+0x23/0x160
RSP: 0018:ffff8801053af878 EFLAGS: 00210286
RAX: 0000000000000000 RBX: ffff8800be2f8780 RCX: ffff88022ffae5e8
RDX: 0000000000004c66 RSI: ffffea00055ff440 RDI: ffff8800be2f8780
RBP: ffff8801053af898 R08: 0000000000000001 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000000 R12: ffffea00055ff440
R13: 0000000000001000 R14: ffff8800c50be538 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff88042fc60000(0063) knlGS:00000000e439c700
CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 0000000000000010 CR3: 0000000001d8f000 CR4: 00000000000607f0
Stack:
...
Call Trace:
[<ffffffff81365a72>] __nfs_fscache_invalidate_page+0x42/0x70
[<ffffffff813553d5>] nfs_invalidate_page+0x75/0x90
[<ffffffff811b8f5e>] truncate_inode_page+0x8e/0x90
[<ffffffff811b90ad>] truncate_inode_pages_range.part.12+0x14d/0x620
[<ffffffff81d6387d>] ? __mutex_lock_slowpath+0x1fd/0x2e0
[<ffffffff811b95d3>] truncate_inode_pages_range+0x53/0x70
[<ffffffff811b969d>] truncate_inode_pages+0x2d/0x40
[<ffffffff811b96ff>] truncate_pagecache+0x4f/0x70
[<ffffffff81356840>] nfs_setattr_update_inode+0xa0/0x120
[<ffffffff81368de4>] nfs3_proc_setattr+0xc4/0xe0
[<ffffffff81357f78>] nfs_setattr+0xc8/0x150
[<ffffffff8122d95b>] notify_change+0x1cb/0x390
[<ffffffff8120a55b>] do_truncate+0x7b/0xc0
[<ffffffff8121f96c>] do_last+0xa4c/0xfd0
[<ffffffff8121ffbc>] path_openat+0xcc/0x670
[<ffffffff81220a0e>] do_filp_open+0x4e/0xb0
[<ffffffff8120ba1f>] do_sys_open+0x13f/0x2b0
[<ffffffff8126aaf6>] compat_SyS_open+0x36/0x50
[<ffffffff81d7204c>] sysenter_dispatch+0x7/0x24

The code at the instruction pointer was disassembled:

> (gdb) disas __fscache_uncache_page
> Dump of assembler code for function __fscache_uncache_page:
> ...
> 0xffffffff812a18ff <+31>: mov 0x48(%rbx),%rax
> 0xffffffff812a1903 <+35>: cmpb $0x0,0x10(%rax)
> 0xffffffff812a1907 <+39>: je 0xffffffff812a19cd <__fscache_uncache_page+237>

These instructions make up:

	ASSERTCMP(cookie->def->type, !=, FSCACHE_COOKIE_TYPE_INDEX);

That cmpb is the faulting instruction (%rax is 0).  So cookie->def is NULL -
which presumably means that the cookie has already been at least partway
through __fscache_relinquish_cookie().

What I think may be happening is something like a three-way race on the same
file:

	PROCESS 1	PROCESS 2	PROCESS 3
	===============	===============	===============
	open(O_TRUNC|O_WRONLY)
			open(O_RDONLY)
					open(O_WRONLY)
	-->nfs_open()
	-->nfs_fscache_set_inode_cookie()
	nfs_fscache_inode_lock()
	nfs_fscache_disable_inode_cookie()
	__fscache_relinquish_cookie()
	nfs_inode->fscache = NULL
	<--nfs_fscache_set_inode_cookie()

			-->nfs_open()
			-->nfs_fscache_set_inode_cookie()
			nfs_fscache_inode_lock()
			nfs_fscache_enable_inode_cookie()
			__fscache_acquire_cookie()
			nfs_inode->fscache = cookie
			<--nfs_fscache_set_inode_cookie()
	<--nfs_open()
	-->nfs_setattr()
	...
	...
	-->nfs_invalidate_page()
	-->__nfs_fscache_invalidate_page()
	cookie = nfsi->fscache
					-->nfs_open()
					-->nfs_fscache_set_inode_cookie()
					nfs_fscache_inode_lock()
					nfs_fscache_disable_inode_cookie()
					-->__fscache_relinquish_cookie()
	-->__fscache_uncache_page(cookie)
	<crash>
					<--__fscache_relinquish_cookie()
					nfs_inode->fscache = NULL
					<--nfs_fscache_set_inode_cookie()

What is needed is something to prevent process #2 from reacquiring the cookie
- and I think checking i_writecount should do the trick.

It's also possible to have a two-way race on this if the file is opened
O_TRUNC|O_RDONLY instead.

Reported-by: Mark Moseley <moseleymark@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
---
 fs/nfs/dir.c           |   2 +-
 fs/nfs/fscache.c       | 198 ++++++++++++++-----------------------------------
 fs/nfs/fscache.h       |  18 ++---
 fs/nfs/inode.c         |   6 +-
 fs/nfs/nfs4file.c      |   2 +-
 include/linux/fs.h     |   5 ++
 include/linux/nfs_fs.h |   8 +-
 7 files changed, 79 insertions(+), 160 deletions(-)

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 854a8f05a610..4c5edcc8b6e9 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1381,7 +1381,7 @@ static struct nfs_open_context *create_nfs_open_context(struct dentry *dentry, i
 
 static int do_open(struct inode *inode, struct file *filp)
 {
-	nfs_fscache_set_inode_cookie(inode, filp);
+	nfs_fscache_open_file(inode, filp);
 	return 0;
 }
 
diff --git a/fs/nfs/fscache.c b/fs/nfs/fscache.c
index cd6e7efd4305..3ef01f0ba0bc 100644
--- a/fs/nfs/fscache.c
+++ b/fs/nfs/fscache.c
@@ -178,163 +178,79 @@ void nfs_fscache_release_super_cookie(struct super_block *sb)
 /*
  * Initialise the per-inode cache cookie pointer for an NFS inode.
  */
-void nfs_fscache_init_inode_cookie(struct inode *inode)
+void nfs_fscache_init_inode(struct inode *inode)
 {
-	NFS_I(inode)->fscache = NULL;
-	if (S_ISREG(inode->i_mode))
-		set_bit(NFS_INO_FSCACHE, &NFS_I(inode)->flags);
-}
-
-/*
- * Get the per-inode cache cookie for an NFS inode.
- */
-static void nfs_fscache_enable_inode_cookie(struct inode *inode)
-{
-	struct super_block *sb = inode->i_sb;
 	struct nfs_inode *nfsi = NFS_I(inode);
 
-	if (nfsi->fscache || !NFS_FSCACHE(inode))
+	nfsi->fscache = NULL;
+	if (!S_ISREG(inode->i_mode))
 		return;
-
-	if ((NFS_SB(sb)->options & NFS_OPTION_FSCACHE)) {
-		nfsi->fscache = fscache_acquire_cookie(
-			NFS_SB(sb)->fscache,
-			&nfs_fscache_inode_object_def,
-			nfsi, true);
-
-		dfprintk(FSCACHE, "NFS: get FH cookie (0x%p/0x%p/0x%p)\n",
-			 sb, nfsi, nfsi->fscache);
-	}
+	nfsi->fscache = fscache_acquire_cookie(NFS_SB(inode->i_sb)->fscache,
+					       &nfs_fscache_inode_object_def,
+					       nfsi, false);
 }
 
 /*
  * Release a per-inode cookie.
  */
-void nfs_fscache_release_inode_cookie(struct inode *inode)
+void nfs_fscache_clear_inode(struct inode *inode)
 {
 	struct nfs_inode *nfsi = NFS_I(inode);
+	struct fscache_cookie *cookie = nfs_i_fscache(inode);
 
-	dfprintk(FSCACHE, "NFS: clear cookie (0x%p/0x%p)\n",
-		 nfsi, nfsi->fscache);
+	dfprintk(FSCACHE, "NFS: clear cookie (0x%p/0x%p)\n", nfsi, cookie);
 
-	fscache_relinquish_cookie(nfsi->fscache, 0);
+	fscache_relinquish_cookie(cookie, false);
 	nfsi->fscache = NULL;
 }
 
-/*
- * Retire a per-inode cookie, destroying the data attached to it.
- */
-void nfs_fscache_zap_inode_cookie(struct inode *inode)
+static bool nfs_fscache_can_enable(void *data)
 {
-	struct nfs_inode *nfsi = NFS_I(inode);
+	struct inode *inode = data;
 
-	dfprintk(FSCACHE, "NFS: zapping cookie (0x%p/0x%p)\n",
-		 nfsi, nfsi->fscache);
-
-	fscache_relinquish_cookie(nfsi->fscache, 1);
-	nfsi->fscache = NULL;
+	return !inode_is_open_for_write(inode);
 }
 
 /*
- * Turn off the cache with regard to a per-inode cookie if opened for writing,
- * invalidating all the pages in the page cache relating to the associated
- * inode to clear the per-page caching.
- */
-static void nfs_fscache_disable_inode_cookie(struct inode *inode)
-{
-	clear_bit(NFS_INO_FSCACHE, &NFS_I(inode)->flags);
-
-	if (NFS_I(inode)->fscache) {
-		dfprintk(FSCACHE,
-			 "NFS: nfsi 0x%p turning cache off\n", NFS_I(inode));
-
-		/* Need to uncache any pages attached to this inode that
-		 * fscache knows about before turning off the cache.
-		 */
-		fscache_uncache_all_inode_pages(NFS_I(inode)->fscache, inode);
-		nfs_fscache_zap_inode_cookie(inode);
-	}
-}
-
-/*
- * wait_on_bit() sleep function for uninterruptible waiting
- */
-static int nfs_fscache_wait_bit(void *flags)
-{
-	schedule();
-	return 0;
-}
-
-/*
- * Lock against someone else trying to also acquire or relinquish a cookie
- */
-static inline void nfs_fscache_inode_lock(struct inode *inode)
-{
-	struct nfs_inode *nfsi = NFS_I(inode);
-
-	while (test_and_set_bit(NFS_INO_FSCACHE_LOCK, &nfsi->flags))
-		wait_on_bit(&nfsi->flags, NFS_INO_FSCACHE_LOCK,
-			    nfs_fscache_wait_bit, TASK_UNINTERRUPTIBLE);
-}
-
-/*
- * Unlock cookie management lock
- */
-static inline void nfs_fscache_inode_unlock(struct inode *inode)
-{
-	struct nfs_inode *nfsi = NFS_I(inode);
-
-	smp_mb__before_clear_bit();
-	clear_bit(NFS_INO_FSCACHE_LOCK, &nfsi->flags);
-	smp_mb__after_clear_bit();
-	wake_up_bit(&nfsi->flags, NFS_INO_FSCACHE_LOCK);
-}
-
-/*
- * Decide if we should enable or disable local caching for this inode.
- * - For now, with NFS, only regular files that are open read-only will be able
- *   to use the cache.
- * - May be invoked multiple times in parallel by parallel nfs_open() functions.
- */
-void nfs_fscache_set_inode_cookie(struct inode *inode, struct file *filp)
-{
-	if (NFS_FSCACHE(inode)) {
-		nfs_fscache_inode_lock(inode);
-		if ((filp->f_flags & O_ACCMODE) != O_RDONLY)
-			nfs_fscache_disable_inode_cookie(inode);
-		else
-			nfs_fscache_enable_inode_cookie(inode);
-		nfs_fscache_inode_unlock(inode);
-	}
-}
-EXPORT_SYMBOL_GPL(nfs_fscache_set_inode_cookie);
-
-/*
- * Replace a per-inode cookie due to revalidation detecting a file having
- * changed on the server.
+ * Enable or disable caching for a file that is being opened as appropriate.
+ * The cookie is allocated when the inode is initialised, but is not enabled at
+ * that time.  Enablement is deferred to file-open time to avoid stat() and
+ * access() thrashing the cache.
+ *
+ * For now, with NFS, only regular files that are open read-only will be able
+ * to use the cache.
+ *
+ * We enable the cache for an inode if we open it read-only and it isn't
+ * currently open for writing.  We disable the cache if the inode is open
+ * write-only.
+ *
+ * The caller uses the file struct to pin i_writecount on the inode before
+ * calling us when a file is opened for writing, so we can make use of that.
+ *
+ * Note that this may be invoked multiple times in parallel by parallel
+ * nfs_open() functions.
  */
-void nfs_fscache_reset_inode_cookie(struct inode *inode)
+void nfs_fscache_open_file(struct inode *inode, struct file *filp)
 {
 	struct nfs_inode *nfsi = NFS_I(inode);
-	struct nfs_server *nfss = NFS_SERVER(inode);
-	NFS_IFDEBUG(struct fscache_cookie *old = nfsi->fscache);
+	struct fscache_cookie *cookie = nfs_i_fscache(inode);
 
-	nfs_fscache_inode_lock(inode);
-	if (nfsi->fscache) {
-		/* retire the current fscache cache and get a new one */
-		fscache_relinquish_cookie(nfsi->fscache, 1);
-
-		nfsi->fscache = fscache_acquire_cookie(
-			nfss->nfs_client->fscache,
-			&nfs_fscache_inode_object_def,
-			nfsi, true);
+	if (!fscache_cookie_valid(cookie))
+		return;
 
-		dfprintk(FSCACHE,
-			 "NFS: revalidation new cookie (0x%p/0x%p/0x%p/0x%p)\n",
-			 nfss, nfsi, old, nfsi->fscache);
+	if (inode_is_open_for_write(inode)) {
+		dfprintk(FSCACHE, "NFS: nfsi 0x%p disabling cache\n", nfsi);
+		clear_bit(NFS_INO_FSCACHE, &nfsi->flags);
+		fscache_disable_cookie(cookie, true);
+		fscache_uncache_all_inode_pages(cookie, inode);
+	} else {
+		dfprintk(FSCACHE, "NFS: nfsi 0x%p enabling cache\n", nfsi);
+		fscache_enable_cookie(cookie, nfs_fscache_can_enable, inode);
+		if (fscache_cookie_enabled(cookie))
+			set_bit(NFS_INO_FSCACHE, &NFS_I(inode)->flags);
 	}
-	nfs_fscache_inode_unlock(inode);
 }
+EXPORT_SYMBOL_GPL(nfs_fscache_open_file);
 
 /*
  * Release the caching state associated with a page, if the page isn't busy
@@ -344,12 +260,11 @@ void nfs_fscache_reset_inode_cookie(struct inode *inode)
 int nfs_fscache_release_page(struct page *page, gfp_t gfp)
 {
 	if (PageFsCache(page)) {
-		struct nfs_inode *nfsi = NFS_I(page->mapping->host);
-		struct fscache_cookie *cookie = nfsi->fscache;
+		struct fscache_cookie *cookie = nfs_i_fscache(page->mapping->host);
 
 		BUG_ON(!cookie);
 		dfprintk(FSCACHE, "NFS: fscache releasepage (0x%p/0x%p/0x%p)\n",
-			 cookie, page, nfsi);
+			 cookie, page, NFS_I(page->mapping->host));
 
 		if (!fscache_maybe_release_page(cookie, page, gfp))
 			return 0;
@@ -367,13 +282,12 @@ int nfs_fscache_release_page(struct page *page, gfp_t gfp)
  */
 void __nfs_fscache_invalidate_page(struct page *page, struct inode *inode)
 {
-	struct nfs_inode *nfsi = NFS_I(inode);
-	struct fscache_cookie *cookie = nfsi->fscache;
+	struct fscache_cookie *cookie = nfs_i_fscache(inode);
 
 	BUG_ON(!cookie);
 
 	dfprintk(FSCACHE, "NFS: fscache invalidatepage (0x%p/0x%p/0x%p)\n",
-		 cookie, page, nfsi);
+		 cookie, page, NFS_I(inode));
 
 	fscache_wait_on_page_write(cookie, page);
 
@@ -417,9 +331,9 @@ int __nfs_readpage_from_fscache(struct nfs_open_context *ctx,
 
 	dfprintk(FSCACHE,
 		 "NFS: readpage_from_fscache(fsc:%p/p:%p(i:%lx f:%lx)/0x%p)\n",
-		 NFS_I(inode)->fscache, page, page->index, page->flags, inode);
+		 nfs_i_fscache(inode), page, page->index, page->flags, inode);
 
-	ret = fscache_read_or_alloc_page(NFS_I(inode)->fscache,
+	ret = fscache_read_or_alloc_page(nfs_i_fscache(inode),
 					 page,
 					 nfs_readpage_from_fscache_complete,
 					 ctx,
@@ -459,9 +373,9 @@ int __nfs_readpages_from_fscache(struct nfs_open_context *ctx,
 	int ret;
 
 	dfprintk(FSCACHE, "NFS: nfs_getpages_from_fscache (0x%p/%u/0x%p)\n",
-		 NFS_I(inode)->fscache, npages, inode);
+		 nfs_i_fscache(inode), npages, inode);
 
-	ret = fscache_read_or_alloc_pages(NFS_I(inode)->fscache,
+	ret = fscache_read_or_alloc_pages(nfs_i_fscache(inode),
 					  mapping, pages, nr_pages,
 					  nfs_readpage_from_fscache_complete,
 					  ctx,
@@ -506,15 +420,15 @@ void __nfs_readpage_to_fscache(struct inode *inode, struct page *page, int sync)
 
 	dfprintk(FSCACHE,
 		 "NFS: readpage_to_fscache(fsc:%p/p:%p(i:%lx f:%lx)/%d)\n",
-		 NFS_I(inode)->fscache, page, page->index, page->flags, sync);
+		 nfs_i_fscache(inode), page, page->index, page->flags, sync);
 
-	ret = fscache_write_page(NFS_I(inode)->fscache, page, GFP_KERNEL);
+	ret = fscache_write_page(nfs_i_fscache(inode), page, GFP_KERNEL);
 	dfprintk(FSCACHE,
 		 "NFS:     readpage_to_fscache: p:%p(i:%lu f:%lx) ret %d\n",
 		 page, page->index, page->flags, ret);
 
 	if (ret != 0) {
-		fscache_uncache_page(NFS_I(inode)->fscache, page);
+		fscache_uncache_page(nfs_i_fscache(inode), page);
 		nfs_add_fscache_stats(inode,
 				      NFSIOS_FSCACHE_PAGES_WRITTEN_FAIL, 1);
 		nfs_add_fscache_stats(inode, NFSIOS_FSCACHE_PAGES_UNCACHED, 1);
diff --git a/fs/nfs/fscache.h b/fs/nfs/fscache.h
index 4ecb76652eba..d7fe3e799f2f 100644
--- a/fs/nfs/fscache.h
+++ b/fs/nfs/fscache.h
@@ -76,11 +76,9 @@ extern void nfs_fscache_release_client_cookie(struct nfs_client *);
 extern void nfs_fscache_get_super_cookie(struct super_block *, const char *, int);
 extern void nfs_fscache_release_super_cookie(struct super_block *);
 
-extern void nfs_fscache_init_inode_cookie(struct inode *);
-extern void nfs_fscache_release_inode_cookie(struct inode *);
-extern void nfs_fscache_zap_inode_cookie(struct inode *);
-extern void nfs_fscache_set_inode_cookie(struct inode *, struct file *);
-extern void nfs_fscache_reset_inode_cookie(struct inode *);
+extern void nfs_fscache_init_inode(struct inode *);
+extern void nfs_fscache_clear_inode(struct inode *);
+extern void nfs_fscache_open_file(struct inode *, struct file *);
 
 extern void __nfs_fscache_invalidate_page(struct page *, struct inode *);
 extern int nfs_fscache_release_page(struct page *, gfp_t);
@@ -187,12 +185,10 @@ static inline void nfs_fscache_release_client_cookie(struct nfs_client *clp) {}
 
 static inline void nfs_fscache_release_super_cookie(struct super_block *sb) {}
 
-static inline void nfs_fscache_init_inode_cookie(struct inode *inode) {}
-static inline void nfs_fscache_release_inode_cookie(struct inode *inode) {}
-static inline void nfs_fscache_zap_inode_cookie(struct inode *inode) {}
-static inline void nfs_fscache_set_inode_cookie(struct inode *inode,
-						struct file *filp) {}
-static inline void nfs_fscache_reset_inode_cookie(struct inode *inode) {}
+static inline void nfs_fscache_init_inode(struct inode *inode) {}
+static inline void nfs_fscache_clear_inode(struct inode *inode) {}
+static inline void nfs_fscache_open_file(struct inode *inode,
+					 struct file *filp) {}
 
 static inline int nfs_fscache_release_page(struct page *page, gfp_t gfp)
 {
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index eda8879171c4..bb90bff0cb7a 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -122,7 +122,7 @@ void nfs_clear_inode(struct inode *inode)
 	WARN_ON_ONCE(!list_empty(&NFS_I(inode)->open_files));
 	nfs_zap_acl_cache(inode);
 	nfs_access_zap_cache(inode);
-	nfs_fscache_release_inode_cookie(inode);
+	nfs_fscache_clear_inode(inode);
 }
 EXPORT_SYMBOL_GPL(nfs_clear_inode);
 
@@ -459,7 +459,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr, st
 		nfsi->attrtimeo_timestamp = now;
 		nfsi->access_cache = RB_ROOT;
 
-		nfs_fscache_init_inode_cookie(inode);
+		nfs_fscache_init_inode(inode);
 
 		unlock_new_inode(inode);
 	} else
@@ -854,7 +854,7 @@ int nfs_open(struct inode *inode, struct file *filp)
 		return PTR_ERR(ctx);
 	nfs_file_set_open_context(filp, ctx);
 	put_nfs_open_context(ctx);
-	nfs_fscache_set_inode_cookie(inode, filp);
+	nfs_fscache_open_file(inode, filp);
 	return 0;
 }
 
diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c
index e5b804dd944c..5b8a618a0f7a 100644
--- a/fs/nfs/nfs4file.c
+++ b/fs/nfs/nfs4file.c
@@ -74,7 +74,7 @@ nfs4_file_open(struct inode *inode, struct file *filp)
 
 	nfs_set_verifier(dentry, nfs_save_change_attribute(dir));
 	nfs_file_set_open_context(filp, ctx);
-	nfs_fscache_set_inode_cookie(inode, filp);
+	nfs_fscache_open_file(inode, filp);
 	err = 0;
 
 out_put_ctx:
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 3f40547ba191..955dff5da56a 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2292,6 +2292,11 @@ static inline void allow_write_access(struct file *file)
 	if (file)
 		atomic_inc(&file_inode(file)->i_writecount);
 }
+static inline bool inode_is_open_for_write(const struct inode *inode)
+{
+	return atomic_read(&inode->i_writecount) > 0;
+}
+
 #ifdef CONFIG_IMA
 static inline void i_readcount_dec(struct inode *inode)
 {
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 3ea4cde8701c..14a48207a304 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -269,9 +269,13 @@ static inline int NFS_STALE(const struct inode *inode)
 	return test_bit(NFS_INO_STALE, &NFS_I(inode)->flags);
 }
 
-static inline int NFS_FSCACHE(const struct inode *inode)
+static inline struct fscache_cookie *nfs_i_fscache(struct inode *inode)
 {
-	return test_bit(NFS_INO_FSCACHE, &NFS_I(inode)->flags);
+#ifdef CONFIG_NFS_FSCACHE
+	return NFS_I(inode)->fscache;
+#else
+	return NULL;
+#endif
 }
 
 static inline __u64 NFS_FILEID(const struct inode *inode)
-- 
cgit 


From 8d6a35fb13406f87d926fffeee0d70360ce3077d Mon Sep 17 00:00:00 2001
From: Sean Cross <xobs@kosagi.com>
Date: Thu, 26 Sep 2013 11:24:46 +0800
Subject: ARM: imx6q: Add PCIe bits to GPR syscon definition

PCIe requires additional bits be defined for GPR8 and GPR12.

Signed-off-by: Sean Cross <xobs@kosagi.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 include/linux/mfd/syscon/imx6q-iomuxc-gpr.h | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h b/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h
index b6bdcd66c07d..e00e9f362fd5 100644
--- a/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h
+++ b/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h
@@ -241,6 +241,12 @@
 
 #define IMX6Q_GPR5_L2_CLK_STOP			BIT(8)
 
+#define IMX6Q_GPR8_TX_SWING_LOW			(0x7f << 25)
+#define IMX6Q_GPR8_TX_SWING_FULL		(0x7f << 18)
+#define IMX6Q_GPR8_TX_DEEMPH_GEN2_6DB		(0x3f << 12)
+#define IMX6Q_GPR8_TX_DEEMPH_GEN2_3P5DB		(0x3f << 6)
+#define IMX6Q_GPR8_TX_DEEMPH_GEN1		(0x3f << 0)
+
 #define IMX6Q_GPR9_TZASC2_BYP			BIT(1)
 #define IMX6Q_GPR9_TZASC1_BYP			BIT(0)
 
@@ -273,7 +279,9 @@
 #define IMX6Q_GPR12_ARMP_AHB_CLK_EN		BIT(26)
 #define IMX6Q_GPR12_ARMP_ATB_CLK_EN		BIT(25)
 #define IMX6Q_GPR12_ARMP_APB_CLK_EN		BIT(24)
+#define IMX6Q_GPR12_DEVICE_TYPE			(0xf << 12)
 #define IMX6Q_GPR12_PCIE_CTL_2			BIT(10)
+#define IMX6Q_GPR12_LOS_LEVEL			(0x1f << 4)
 
 #define IMX6Q_GPR13_SDMA_STOP_REQ		BIT(30)
 #define IMX6Q_GPR13_CAN2_STOP_REQ		BIT(29)
-- 
cgit 


From bb38919ec56e0758c3ae56dfc091dcde1391353e Mon Sep 17 00:00:00 2001
From: Sean Cross <xobs@kosagi.com>
Date: Thu, 26 Sep 2013 11:24:47 +0800
Subject: PCI: imx6: Add support for i.MX6 PCIe controller

Add support for the PCIe port present on the i.MX6 family of controllers.
These use the Synopsis Designware core tied to their own PHY.

Signed-off-by: Sean Cross <xobs@kosagi.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 .../devicetree/bindings/pci/designware-pcie.txt    |   7 +-
 drivers/pci/host/Kconfig                           |   6 +
 drivers/pci/host/Makefile                          |   1 +
 drivers/pci/host/pci-imx6.c                        | 575 +++++++++++++++++++++
 4 files changed, 588 insertions(+), 1 deletion(-)
 create mode 100644 drivers/pci/host/pci-imx6.c

diff --git a/Documentation/devicetree/bindings/pci/designware-pcie.txt b/Documentation/devicetree/bindings/pci/designware-pcie.txt
index eabcb4b5db6e..dd8d920bcbd6 100644
--- a/Documentation/devicetree/bindings/pci/designware-pcie.txt
+++ b/Documentation/devicetree/bindings/pci/designware-pcie.txt
@@ -3,7 +3,7 @@
 Required properties:
 - compatible: should contain "snps,dw-pcie" to identify the
 	core, plus an identifier for the specific instance, such
-	as "samsung,exynos5440-pcie".
+	as "samsung,exynos5440-pcie" or "fsl,imx6q-pcie".
 - reg: base addresses and lengths of the pcie controller,
 	the phy controller, additional register for the phy controller.
 - interrupts: interrupt values for level interrupt,
@@ -21,6 +21,11 @@ Required properties:
 - num-lanes: number of lanes to use
 - reset-gpio: gpio pin number of power good signal
 
+Optional properties for fsl,imx6q-pcie
+- power-on-gpio: gpio pin number of power-enable signal
+- wake-up-gpio: gpio pin number of incoming wakeup signal
+- disable-gpio: gpio pin number of outgoing rfkill/endpoint disable signal
+
 Example:
 
 SoC specific DT Entry:
diff --git a/drivers/pci/host/Kconfig b/drivers/pci/host/Kconfig
index 3d9504811126..efa24d9a3361 100644
--- a/drivers/pci/host/Kconfig
+++ b/drivers/pci/host/Kconfig
@@ -15,6 +15,12 @@ config PCI_EXYNOS
 	select PCIEPORTBUS
 	select PCIE_DW
 
+config PCI_IMX6
+	bool "Freescale i.MX6 PCIe controller"
+	depends on SOC_IMX6Q
+	select PCIEPORTBUS
+	select PCIE_DW
+
 config PCI_TEGRA
 	bool "NVIDIA Tegra PCIe controller"
 	depends on ARCH_TEGRA
diff --git a/drivers/pci/host/Makefile b/drivers/pci/host/Makefile
index c9a997b2690d..287d6a053dda 100644
--- a/drivers/pci/host/Makefile
+++ b/drivers/pci/host/Makefile
@@ -1,4 +1,5 @@
 obj-$(CONFIG_PCIE_DW) += pcie-designware.o
 obj-$(CONFIG_PCI_EXYNOS) += pci-exynos.o
+obj-$(CONFIG_PCI_IMX6) += pci-imx6.o
 obj-$(CONFIG_PCI_MVEBU) += pci-mvebu.o
 obj-$(CONFIG_PCI_TEGRA) += pci-tegra.o
diff --git a/drivers/pci/host/pci-imx6.c b/drivers/pci/host/pci-imx6.c
new file mode 100644
index 000000000000..5afa9226a080
--- /dev/null
+++ b/drivers/pci/host/pci-imx6.c
@@ -0,0 +1,575 @@
+/*
+ * PCIe host controller driver for Freescale i.MX6 SoCs
+ *
+ * Copyright (C) 2013 Kosagi
+ *		http://www.kosagi.com
+ *
+ * Author: Sean Cross <xobs@kosagi.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/kernel.h>
+#include <linux/mfd/syscon.h>
+#include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
+#include <linux/module.h>
+#include <linux/of_gpio.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/resource.h>
+#include <linux/signal.h>
+#include <linux/types.h>
+
+#include "pcie-designware.h"
+
+#define to_imx6_pcie(x)	container_of(x, struct imx6_pcie, pp)
+
+struct imx6_pcie {
+	int			reset_gpio;
+	int			power_on_gpio;
+	int			wake_up_gpio;
+	int			disable_gpio;
+	struct clk		*lvds_gate;
+	struct clk		*sata_ref_100m;
+	struct clk		*pcie_ref_125m;
+	struct clk		*pcie_axi;
+	struct pcie_port	pp;
+	struct regmap		*iomuxc_gpr;
+	void __iomem		*mem_base;
+};
+
+/* PCIe Port Logic registers (memory-mapped) */
+#define PL_OFFSET 0x700
+#define PCIE_PHY_DEBUG_R0 (PL_OFFSET + 0x28)
+#define PCIE_PHY_DEBUG_R1 (PL_OFFSET + 0x2c)
+
+#define PCIE_PHY_CTRL (PL_OFFSET + 0x114)
+#define PCIE_PHY_CTRL_DATA_LOC 0
+#define PCIE_PHY_CTRL_CAP_ADR_LOC 16
+#define PCIE_PHY_CTRL_CAP_DAT_LOC 17
+#define PCIE_PHY_CTRL_WR_LOC 18
+#define PCIE_PHY_CTRL_RD_LOC 19
+
+#define PCIE_PHY_STAT (PL_OFFSET + 0x110)
+#define PCIE_PHY_STAT_ACK_LOC 16
+
+/* PHY registers (not memory-mapped) */
+#define PCIE_PHY_RX_ASIC_OUT 0x100D
+
+#define PHY_RX_OVRD_IN_LO 0x1005
+#define PHY_RX_OVRD_IN_LO_RX_DATA_EN (1 << 5)
+#define PHY_RX_OVRD_IN_LO_RX_PLL_EN (1 << 3)
+
+static int pcie_phy_poll_ack(void __iomem *dbi_base, int exp_val)
+{
+	u32 val;
+	u32 max_iterations = 10;
+	u32 wait_counter = 0;
+
+	do {
+		val = readl(dbi_base + PCIE_PHY_STAT);
+		val = (val >> PCIE_PHY_STAT_ACK_LOC) & 0x1;
+		wait_counter++;
+
+		if (val == exp_val)
+			return 0;
+
+		udelay(1);
+	} while (wait_counter < max_iterations);
+
+	return -ETIMEDOUT;
+}
+
+static int pcie_phy_wait_ack(void __iomem *dbi_base, int addr)
+{
+	u32 val;
+	int ret;
+
+	val = addr << PCIE_PHY_CTRL_DATA_LOC;
+	writel(val, dbi_base + PCIE_PHY_CTRL);
+
+	val |= (0x1 << PCIE_PHY_CTRL_CAP_ADR_LOC);
+	writel(val, dbi_base + PCIE_PHY_CTRL);
+
+	ret = pcie_phy_poll_ack(dbi_base, 1);
+	if (ret)
+		return ret;
+
+	val = addr << PCIE_PHY_CTRL_DATA_LOC;
+	writel(val, dbi_base + PCIE_PHY_CTRL);
+
+	ret = pcie_phy_poll_ack(dbi_base, 0);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+/* Read from the 16-bit PCIe PHY control registers (not memory-mapped) */
+static int pcie_phy_read(void __iomem *dbi_base, int addr , int *data)
+{
+	u32 val, phy_ctl;
+	int ret;
+
+	ret = pcie_phy_wait_ack(dbi_base, addr);
+	if (ret)
+		return ret;
+
+	/* assert Read signal */
+	phy_ctl = 0x1 << PCIE_PHY_CTRL_RD_LOC;
+	writel(phy_ctl, dbi_base + PCIE_PHY_CTRL);
+
+	ret = pcie_phy_poll_ack(dbi_base, 1);
+	if (ret)
+		return ret;
+
+	val = readl(dbi_base + PCIE_PHY_STAT);
+	*data = val & 0xffff;
+
+	/* deassert Read signal */
+	writel(0x00, dbi_base + PCIE_PHY_CTRL);
+
+	ret = pcie_phy_poll_ack(dbi_base, 0);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int pcie_phy_write(void __iomem *dbi_base, int addr, int data)
+{
+	u32 var;
+	int ret;
+
+	/* write addr */
+	/* cap addr */
+	ret = pcie_phy_wait_ack(dbi_base, addr);
+	if (ret)
+		return ret;
+
+	var = data << PCIE_PHY_CTRL_DATA_LOC;
+	writel(var, dbi_base + PCIE_PHY_CTRL);
+
+	/* capture data */
+	var |= (0x1 << PCIE_PHY_CTRL_CAP_DAT_LOC);
+	writel(var, dbi_base + PCIE_PHY_CTRL);
+
+	ret = pcie_phy_poll_ack(dbi_base, 1);
+	if (ret)
+		return ret;
+
+	/* deassert cap data */
+	var = data << PCIE_PHY_CTRL_DATA_LOC;
+	writel(var, dbi_base + PCIE_PHY_CTRL);
+
+	/* wait for ack de-assertion */
+	ret = pcie_phy_poll_ack(dbi_base, 0);
+	if (ret)
+		return ret;
+
+	/* assert wr signal */
+	var = 0x1 << PCIE_PHY_CTRL_WR_LOC;
+	writel(var, dbi_base + PCIE_PHY_CTRL);
+
+	/* wait for ack */
+	ret = pcie_phy_poll_ack(dbi_base, 1);
+	if (ret)
+		return ret;
+
+	/* deassert wr signal */
+	var = data << PCIE_PHY_CTRL_DATA_LOC;
+	writel(var, dbi_base + PCIE_PHY_CTRL);
+
+	/* wait for ack de-assertion */
+	ret = pcie_phy_poll_ack(dbi_base, 0);
+	if (ret)
+		return ret;
+
+	writel(0x0, dbi_base + PCIE_PHY_CTRL);
+
+	return 0;
+}
+
+/*  Added for PCI abort handling */
+static int imx6q_pcie_abort_handler(unsigned long addr,
+		unsigned int fsr, struct pt_regs *regs)
+{
+	/*
+	 * If it was an imprecise abort, then we need to correct the
+	 * return address to be _after_ the instruction.
+	 */
+	if (fsr & (1 << 10))
+		regs->ARM_pc += 4;
+	return 0;
+}
+
+static int imx6_pcie_assert_core_reset(struct pcie_port *pp)
+{
+	struct imx6_pcie *imx6_pcie = to_imx6_pcie(pp);
+
+	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1,
+			IMX6Q_GPR1_PCIE_TEST_PD, 1 << 18);
+	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
+			IMX6Q_GPR12_PCIE_CTL_2, 1 << 10);
+	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1,
+			IMX6Q_GPR1_PCIE_REF_CLK_EN, 0 << 16);
+
+	gpio_set_value(imx6_pcie->reset_gpio, 0);
+	msleep(100);
+	gpio_set_value(imx6_pcie->reset_gpio, 1);
+
+	return 0;
+}
+
+static int imx6_pcie_deassert_core_reset(struct pcie_port *pp)
+{
+	struct imx6_pcie *imx6_pcie = to_imx6_pcie(pp);
+	int ret;
+
+	if (gpio_is_valid(imx6_pcie->power_on_gpio))
+		gpio_set_value(imx6_pcie->power_on_gpio, 1);
+
+	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1,
+			IMX6Q_GPR1_PCIE_TEST_PD, 0 << 18);
+	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR1,
+			IMX6Q_GPR1_PCIE_REF_CLK_EN, 1 << 16);
+
+	ret = clk_prepare_enable(imx6_pcie->sata_ref_100m);
+	if (ret) {
+		dev_err(pp->dev, "unable to enable sata_ref_100m\n");
+		goto err_sata_ref;
+	}
+
+	ret = clk_prepare_enable(imx6_pcie->pcie_ref_125m);
+	if (ret) {
+		dev_err(pp->dev, "unable to enable pcie_ref_125m\n");
+		goto err_pcie_ref;
+	}
+
+	ret = clk_prepare_enable(imx6_pcie->lvds_gate);
+	if (ret) {
+		dev_err(pp->dev, "unable to enable lvds_gate\n");
+		goto err_lvds_gate;
+	}
+
+	ret = clk_prepare_enable(imx6_pcie->pcie_axi);
+	if (ret) {
+		dev_err(pp->dev, "unable to enable pcie_axi\n");
+		goto err_pcie_axi;
+	}
+
+	/* allow the clocks to stabilize */
+	usleep_range(200, 500);
+
+	return 0;
+
+err_pcie_axi:
+	clk_disable_unprepare(imx6_pcie->lvds_gate);
+err_lvds_gate:
+	clk_disable_unprepare(imx6_pcie->pcie_ref_125m);
+err_pcie_ref:
+	clk_disable_unprepare(imx6_pcie->sata_ref_100m);
+err_sata_ref:
+	return ret;
+
+}
+
+static void imx6_pcie_init_phy(struct pcie_port *pp)
+{
+	struct imx6_pcie *imx6_pcie = to_imx6_pcie(pp);
+
+	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
+			IMX6Q_GPR12_PCIE_CTL_2, 0 << 10);
+
+	/* configure constant input signal to the pcie ctrl and phy */
+	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
+			IMX6Q_GPR12_DEVICE_TYPE, PCI_EXP_TYPE_ROOT_PORT << 12);
+	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
+			IMX6Q_GPR12_LOS_LEVEL, 9 << 4);
+
+	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR8,
+			IMX6Q_GPR8_TX_DEEMPH_GEN1, 0 << 0);
+	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR8,
+			IMX6Q_GPR8_TX_DEEMPH_GEN2_3P5DB, 0 << 6);
+	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR8,
+			IMX6Q_GPR8_TX_DEEMPH_GEN2_6DB, 20 << 12);
+	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR8,
+			IMX6Q_GPR8_TX_SWING_FULL, 127 << 18);
+	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR8,
+			IMX6Q_GPR8_TX_SWING_LOW, 127 << 25);
+}
+
+static void imx6_pcie_host_init(struct pcie_port *pp)
+{
+	int count = 0;
+	struct imx6_pcie *imx6_pcie = to_imx6_pcie(pp);
+
+	imx6_pcie_assert_core_reset(pp);
+
+	imx6_pcie_init_phy(pp);
+
+	imx6_pcie_deassert_core_reset(pp);
+
+	dw_pcie_setup_rc(pp);
+
+	regmap_update_bits(imx6_pcie->iomuxc_gpr, IOMUXC_GPR12,
+			IMX6Q_GPR12_PCIE_CTL_2, 1 << 10);
+
+	while (!dw_pcie_link_up(pp)) {
+		usleep_range(100, 1000);
+		count++;
+		if (count >= 10) {
+			dev_err(pp->dev, "phy link never came up\n");
+			dev_dbg(pp->dev,
+				"DEBUG_R0: 0x%08x, DEBUG_R1: 0x%08x\n",
+				readl(pp->dbi_base + PCIE_PHY_DEBUG_R0),
+				readl(pp->dbi_base + PCIE_PHY_DEBUG_R1));
+			break;
+		}
+	}
+
+	return;
+}
+
+static int imx6_pcie_link_up(struct pcie_port *pp)
+{
+	u32 rc, ltssm, rx_valid, temp;
+
+	/* link is debug bit 36, debug register 1 starts at bit 32 */
+	rc = readl(pp->dbi_base + PCIE_PHY_DEBUG_R1) & (0x1 << (36 - 32));
+	if (rc)
+		return -EAGAIN;
+
+	/*
+	 * From L0, initiate MAC entry to gen2 if EP/RC supports gen2.
+	 * Wait 2ms (LTSSM timeout is 24ms, PHY lock is ~5us in gen2).
+	 * If (MAC/LTSSM.state == Recovery.RcvrLock)
+	 * && (PHY/rx_valid==0) then pulse PHY/rx_reset. Transition
+	 * to gen2 is stuck
+	 */
+	pcie_phy_read(pp->dbi_base, PCIE_PHY_RX_ASIC_OUT, &rx_valid);
+	ltssm = readl(pp->dbi_base + PCIE_PHY_DEBUG_R0) & 0x3F;
+
+	if (rx_valid & 0x01)
+		return 0;
+
+	if (ltssm != 0x0d)
+		return 0;
+
+	dev_err(pp->dev, "transition to gen2 is stuck, reset PHY!\n");
+
+	pcie_phy_read(pp->dbi_base,
+		PHY_RX_OVRD_IN_LO, &temp);
+	temp |= (PHY_RX_OVRD_IN_LO_RX_DATA_EN
+		| PHY_RX_OVRD_IN_LO_RX_PLL_EN);
+	pcie_phy_write(pp->dbi_base,
+		PHY_RX_OVRD_IN_LO, temp);
+
+	usleep_range(2000, 3000);
+
+	pcie_phy_read(pp->dbi_base,
+		PHY_RX_OVRD_IN_LO, &temp);
+	temp &= ~(PHY_RX_OVRD_IN_LO_RX_DATA_EN
+		| PHY_RX_OVRD_IN_LO_RX_PLL_EN);
+	pcie_phy_write(pp->dbi_base,
+		PHY_RX_OVRD_IN_LO, temp);
+
+	return 0;
+}
+
+static struct pcie_host_ops imx6_pcie_host_ops = {
+	.link_up = imx6_pcie_link_up,
+	.host_init = imx6_pcie_host_init,
+};
+
+static int imx6_add_pcie_port(struct pcie_port *pp,
+			struct platform_device *pdev)
+{
+	int ret;
+
+	pp->irq = platform_get_irq(pdev, 0);
+	if (!pp->irq) {
+		dev_err(&pdev->dev, "failed to get irq\n");
+		return -ENODEV;
+	}
+
+	pp->root_bus_nr = -1;
+	pp->ops = &imx6_pcie_host_ops;
+
+	spin_lock_init(&pp->conf_lock);
+	ret = dw_pcie_host_init(pp);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to initialize host\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int __init imx6_pcie_probe(struct platform_device *pdev)
+{
+	struct imx6_pcie *imx6_pcie;
+	struct pcie_port *pp;
+	struct device_node *np = pdev->dev.of_node;
+	struct resource *dbi_base;
+	int ret;
+
+	imx6_pcie = devm_kzalloc(&pdev->dev, sizeof(*imx6_pcie), GFP_KERNEL);
+	if (!imx6_pcie)
+		return -ENOMEM;
+
+	pp = &imx6_pcie->pp;
+	pp->dev = &pdev->dev;
+
+	/* Added for PCI abort handling */
+	hook_fault_code(16 + 6, imx6q_pcie_abort_handler, SIGBUS, 0,
+		"imprecise external abort");
+
+	dbi_base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!dbi_base) {
+		dev_err(&pdev->dev, "dbi_base memory resource not found\n");
+		return -ENODEV;
+	}
+
+	pp->dbi_base = devm_ioremap_resource(&pdev->dev, dbi_base);
+	if (IS_ERR(pp->dbi_base)) {
+		dev_err(&pdev->dev, "unable to remap dbi_base\n");
+		ret = PTR_ERR(pp->dbi_base);
+		goto err;
+	}
+
+	/* Fetch GPIOs */
+	imx6_pcie->reset_gpio = of_get_named_gpio(np, "reset-gpio", 0);
+	if (!gpio_is_valid(imx6_pcie->reset_gpio)) {
+		dev_err(&pdev->dev, "no reset-gpio defined\n");
+		ret = -ENODEV;
+	}
+	ret = devm_gpio_request_one(&pdev->dev,
+				imx6_pcie->reset_gpio,
+				GPIOF_OUT_INIT_LOW,
+				"PCIe reset");
+	if (ret) {
+		dev_err(&pdev->dev, "unable to get reset gpio\n");
+		goto err;
+	}
+
+	imx6_pcie->power_on_gpio = of_get_named_gpio(np, "power-on-gpio", 0);
+	if (gpio_is_valid(imx6_pcie->power_on_gpio)) {
+		ret = devm_gpio_request_one(&pdev->dev,
+					imx6_pcie->power_on_gpio,
+					GPIOF_OUT_INIT_LOW,
+					"PCIe power enable");
+		if (ret) {
+			dev_err(&pdev->dev, "unable to get power-on gpio\n");
+			goto err;
+		}
+	}
+
+	imx6_pcie->wake_up_gpio = of_get_named_gpio(np, "wake-up-gpio", 0);
+	if (gpio_is_valid(imx6_pcie->wake_up_gpio)) {
+		ret = devm_gpio_request_one(&pdev->dev,
+					imx6_pcie->wake_up_gpio,
+					GPIOF_IN,
+					"PCIe wake up");
+		if (ret) {
+			dev_err(&pdev->dev, "unable to get wake-up gpio\n");
+			goto err;
+		}
+	}
+
+	imx6_pcie->disable_gpio = of_get_named_gpio(np, "disable-gpio", 0);
+	if (gpio_is_valid(imx6_pcie->disable_gpio)) {
+		ret = devm_gpio_request_one(&pdev->dev,
+					imx6_pcie->disable_gpio,
+					GPIOF_OUT_INIT_HIGH,
+					"PCIe disable endpoint");
+		if (ret) {
+			dev_err(&pdev->dev, "unable to get disable-ep gpio\n");
+			goto err;
+		}
+	}
+
+	/* Fetch clocks */
+	imx6_pcie->lvds_gate = devm_clk_get(&pdev->dev, "lvds_gate");
+	if (IS_ERR(imx6_pcie->lvds_gate)) {
+		dev_err(&pdev->dev,
+			"lvds_gate clock select missing or invalid\n");
+		ret = PTR_ERR(imx6_pcie->lvds_gate);
+		goto err;
+	}
+
+	imx6_pcie->sata_ref_100m = devm_clk_get(&pdev->dev, "sata_ref_100m");
+	if (IS_ERR(imx6_pcie->sata_ref_100m)) {
+		dev_err(&pdev->dev,
+			"sata_ref_100m clock source missing or invalid\n");
+		ret = PTR_ERR(imx6_pcie->sata_ref_100m);
+		goto err;
+	}
+
+	imx6_pcie->pcie_ref_125m = devm_clk_get(&pdev->dev, "pcie_ref_125m");
+	if (IS_ERR(imx6_pcie->pcie_ref_125m)) {
+		dev_err(&pdev->dev,
+			"pcie_ref_125m clock source missing or invalid\n");
+		ret = PTR_ERR(imx6_pcie->pcie_ref_125m);
+		goto err;
+	}
+
+	imx6_pcie->pcie_axi = devm_clk_get(&pdev->dev, "pcie_axi");
+	if (IS_ERR(imx6_pcie->pcie_axi)) {
+		dev_err(&pdev->dev,
+			"pcie_axi clock source missing or invalid\n");
+		ret = PTR_ERR(imx6_pcie->pcie_axi);
+		goto err;
+	}
+
+	/* Grab GPR config register range */
+	imx6_pcie->iomuxc_gpr =
+		 syscon_regmap_lookup_by_compatible("fsl,imx6q-iomuxc-gpr");
+	if (IS_ERR(imx6_pcie->iomuxc_gpr)) {
+		dev_err(&pdev->dev, "unable to find iomuxc registers\n");
+		ret = PTR_ERR(imx6_pcie->iomuxc_gpr);
+		goto err;
+	}
+
+	ret = imx6_add_pcie_port(pp, pdev);
+	if (ret < 0)
+		goto err;
+
+	platform_set_drvdata(pdev, imx6_pcie);
+	return 0;
+
+err:
+	return ret;
+}
+
+static const struct of_device_id imx6_pcie_of_match[] = {
+	{ .compatible = "fsl,imx6q-pcie", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, imx6_pcie_of_match);
+
+static struct platform_driver imx6_pcie_driver = {
+	.driver = {
+		.name	= "imx6q-pcie",
+		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(imx6_pcie_of_match),
+	},
+};
+
+/* Freescale PCIe driver does not allow module unload */
+
+static int __init imx6_pcie_init(void)
+{
+	return platform_driver_probe(&imx6_pcie_driver, imx6_pcie_probe);
+}
+module_init(imx6_pcie_init);
+
+MODULE_AUTHOR("Sean Cross <xobs@kosagi.com>");
+MODULE_DESCRIPTION("Freescale i.MX6 PCIe host controller driver");
+MODULE_LICENSE("GPL v2");
-- 
cgit 


From 09a2c73ddfc7f173237fc7209a65b34dd5bcb5ed Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Thu, 12 Sep 2013 16:20:00 +0800
Subject: PCI: Remove unused PCI_MSIX_FLAGS_BIRMASK definition

PCI_MSIX_FLAGS_BIRMASK has been replaced by PCI_MSIX_TABLE_BIR for better
readability.  Now no one uses it, remove it.  No functional change.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 include/uapi/linux/pci_regs.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h
index baa7852468ef..f0509148111d 100644
--- a/include/uapi/linux/pci_regs.h
+++ b/include/uapi/linux/pci_regs.h
@@ -319,7 +319,6 @@
 #define PCI_MSIX_PBA		8	/* Pending Bit Array offset */
 #define  PCI_MSIX_PBA_BIR	0x00000007 /* BAR index */
 #define  PCI_MSIX_PBA_OFFSET	0xfffffff8 /* Offset into specified BAR */
-#define  PCI_MSIX_FLAGS_BIRMASK	(7 << 0)   /* deprecated */
 #define PCI_CAP_MSIX_SIZEOF	12	/* size of MSIX registers */
 
 /* MSI-X entry's format */
-- 
cgit 


From a45adbe8d35247a5911c8ee05e4154089cda6872 Mon Sep 17 00:00:00 2001
From: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Date: Fri, 27 Sep 2013 13:17:46 -0400
Subject: qlge: Enhance nested VLAN (Q-in-Q) handling.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

o Adapter doesn’t handle packets with nested VLAN tags in
Rx path. User can turn off VLAN tag stripping in the hardware
and let the stack handle stripping of VLAN tags in the Rx path.

o Users can enable or disable hardware VLAN acceleration using ethtool

Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/qlge/qlge_main.c | 126 +++++++++++++++++++++------
 1 file changed, 101 insertions(+), 25 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_main.c b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
index 2553cf4503b9..64f94098bc02 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge_main.c
+++ b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
@@ -96,8 +96,10 @@ static DEFINE_PCI_DEVICE_TABLE(qlge_pci_tbl) = {
 
 MODULE_DEVICE_TABLE(pci, qlge_pci_tbl);
 
-static int ql_wol(struct ql_adapter *qdev);
-static void qlge_set_multicast_list(struct net_device *ndev);
+static int ql_wol(struct ql_adapter *);
+static void qlge_set_multicast_list(struct net_device *);
+static int ql_adapter_down(struct ql_adapter *);
+static int ql_adapter_up(struct ql_adapter *);
 
 /* This hardware semaphore causes exclusive access to
  * resources shared between the NIC driver, MPI firmware,
@@ -1464,6 +1466,29 @@ static void ql_categorize_rx_err(struct ql_adapter *qdev, u8 rx_err,
 	}
 }
 
+/**
+ * ql_update_mac_hdr_len - helper routine to update the mac header length
+ * based on vlan tags if present
+ */
+static void ql_update_mac_hdr_len(struct ql_adapter *qdev,
+				  struct ib_mac_iocb_rsp *ib_mac_rsp,
+				  void *page, size_t *len)
+{
+	u16 *tags;
+
+	if (qdev->ndev->features & NETIF_F_HW_VLAN_CTAG_RX)
+		return;
+	if (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_V) {
+		tags = (u16 *)page;
+		/* Look for stacked vlan tags in ethertype field */
+		if (tags[6] == ETH_P_8021Q &&
+		    tags[8] == ETH_P_8021Q)
+			*len += 2 * VLAN_HLEN;
+		else
+			*len += VLAN_HLEN;
+	}
+}
+
 /* Process an inbound completion from an rx ring. */
 static void ql_process_mac_rx_gro_page(struct ql_adapter *qdev,
 					struct rx_ring *rx_ring,
@@ -1523,6 +1548,7 @@ static void ql_process_mac_rx_page(struct ql_adapter *qdev,
 	void *addr;
 	struct bq_desc *lbq_desc = ql_get_curr_lchunk(qdev, rx_ring);
 	struct napi_struct *napi = &rx_ring->napi;
+	size_t hlen = ETH_HLEN;
 
 	skb = netdev_alloc_skb(ndev, length);
 	if (!skb) {
@@ -1540,25 +1566,28 @@ static void ql_process_mac_rx_page(struct ql_adapter *qdev,
 		goto err_out;
 	}
 
+	/* Update the MAC header length*/
+	ql_update_mac_hdr_len(qdev, ib_mac_rsp, addr, &hlen);
+
 	/* The max framesize filter on this chip is set higher than
 	 * MTU since FCoE uses 2k frames.
 	 */
-	if (skb->len > ndev->mtu + ETH_HLEN) {
+	if (skb->len > ndev->mtu + hlen) {
 		netif_err(qdev, drv, qdev->ndev,
 			  "Segment too small, dropping.\n");
 		rx_ring->rx_dropped++;
 		goto err_out;
 	}
-	memcpy(skb_put(skb, ETH_HLEN), addr, ETH_HLEN);
+	memcpy(skb_put(skb, hlen), addr, hlen);
 	netif_printk(qdev, rx_status, KERN_DEBUG, qdev->ndev,
 		     "%d bytes of headers and data in large. Chain page to new skb and pull tail.\n",
 		     length);
 	skb_fill_page_desc(skb, 0, lbq_desc->p.pg_chunk.page,
-				lbq_desc->p.pg_chunk.offset+ETH_HLEN,
-				length-ETH_HLEN);
-	skb->len += length-ETH_HLEN;
-	skb->data_len += length-ETH_HLEN;
-	skb->truesize += length-ETH_HLEN;
+				lbq_desc->p.pg_chunk.offset + hlen,
+				length - hlen);
+	skb->len += length - hlen;
+	skb->data_len += length - hlen;
+	skb->truesize += length - hlen;
 
 	rx_ring->rx_packets++;
 	rx_ring->rx_bytes += skb->len;
@@ -1576,7 +1605,7 @@ static void ql_process_mac_rx_page(struct ql_adapter *qdev,
 				(ib_mac_rsp->flags3 & IB_MAC_IOCB_RSP_V4)) {
 			/* Unfragmented ipv4 UDP frame. */
 			struct iphdr *iph =
-				(struct iphdr *) ((u8 *)addr + ETH_HLEN);
+				(struct iphdr *)((u8 *)addr + hlen);
 			if (!(iph->frag_off &
 				htons(IP_MF|IP_OFFSET))) {
 				skb->ip_summed = CHECKSUM_UNNECESSARY;
@@ -1726,7 +1755,8 @@ static struct sk_buff *ql_build_rx_skb(struct ql_adapter *qdev,
 	struct bq_desc *sbq_desc;
 	struct sk_buff *skb = NULL;
 	u32 length = le32_to_cpu(ib_mac_rsp->data_len);
-       u32 hdr_len = le32_to_cpu(ib_mac_rsp->hdr_len);
+	u32 hdr_len = le32_to_cpu(ib_mac_rsp->hdr_len);
+	size_t hlen = ETH_HLEN;
 
 	/*
 	 * Handle the header buffer if present.
@@ -1853,9 +1883,10 @@ static struct sk_buff *ql_build_rx_skb(struct ql_adapter *qdev,
 			skb->data_len += length;
 			skb->truesize += length;
 			length -= length;
-			__pskb_pull_tail(skb,
-				(ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_V) ?
-				VLAN_ETH_HLEN : ETH_HLEN);
+			ql_update_mac_hdr_len(qdev, ib_mac_rsp,
+					      lbq_desc->p.pg_chunk.va,
+					      &hlen);
+			__pskb_pull_tail(skb, hlen);
 		}
 	} else {
 		/*
@@ -1910,8 +1941,9 @@ static struct sk_buff *ql_build_rx_skb(struct ql_adapter *qdev,
 			length -= size;
 			i++;
 		}
-		__pskb_pull_tail(skb, (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_V) ?
-				VLAN_ETH_HLEN : ETH_HLEN);
+		ql_update_mac_hdr_len(qdev, ib_mac_rsp, lbq_desc->p.pg_chunk.va,
+				      &hlen);
+		__pskb_pull_tail(skb, hlen);
 	}
 	return skb;
 }
@@ -2003,7 +2035,7 @@ static void ql_process_mac_split_rx_intr(struct ql_adapter *qdev,
 	rx_ring->rx_packets++;
 	rx_ring->rx_bytes += skb->len;
 	skb_record_rx_queue(skb, rx_ring->cq_id);
-	if ((ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_V) && (vlan_id != 0))
+	if (vlan_id != 0xffff)
 		__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), vlan_id);
 	if (skb->ip_summed == CHECKSUM_UNNECESSARY)
 		napi_gro_receive(&rx_ring->napi, skb);
@@ -2017,7 +2049,8 @@ static unsigned long ql_process_mac_rx_intr(struct ql_adapter *qdev,
 					struct ib_mac_iocb_rsp *ib_mac_rsp)
 {
 	u32 length = le32_to_cpu(ib_mac_rsp->data_len);
-	u16 vlan_id = (ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_V) ?
+	u16 vlan_id = ((ib_mac_rsp->flags2 & IB_MAC_IOCB_RSP_V) &&
+			(qdev->ndev->features & NETIF_F_HW_VLAN_CTAG_RX)) ?
 			((le16_to_cpu(ib_mac_rsp->vlan_id) &
 			IB_MAC_IOCB_RSP_VLAN_MASK)) : 0xffff;
 
@@ -2310,9 +2343,39 @@ static void qlge_vlan_mode(struct net_device *ndev, netdev_features_t features)
 	}
 }
 
+/**
+ * qlge_update_hw_vlan_features - helper routine to reinitialize the adapter
+ * based on the features to enable/disable hardware vlan accel
+ */
+static int qlge_update_hw_vlan_features(struct net_device *ndev,
+					netdev_features_t features)
+{
+	struct ql_adapter *qdev = netdev_priv(ndev);
+	int status = 0;
+
+	status = ql_adapter_down(qdev);
+	if (status) {
+		netif_err(qdev, link, qdev->ndev,
+			  "Failed to bring down the adapter\n");
+		return status;
+	}
+
+	/* update the features with resent change */
+	ndev->features = features;
+
+	status = ql_adapter_up(qdev);
+	if (status) {
+		netif_err(qdev, link, qdev->ndev,
+			  "Failed to bring up the adapter\n");
+		return status;
+	}
+	return status;
+}
+
 static netdev_features_t qlge_fix_features(struct net_device *ndev,
 	netdev_features_t features)
 {
+	int err;
 	/*
 	 * Since there is no support for separate rx/tx vlan accel
 	 * enable/disable make sure tx flag is always in same state as rx.
@@ -2322,6 +2385,11 @@ static netdev_features_t qlge_fix_features(struct net_device *ndev,
 	else
 		features &= ~NETIF_F_HW_VLAN_CTAG_TX;
 
+	/* Update the behavior of vlan accel in the adapter */
+	err = qlge_update_hw_vlan_features(ndev, features);
+	if (err)
+		return err;
+
 	return features;
 }
 
@@ -3704,8 +3772,12 @@ static int ql_adapter_initialize(struct ql_adapter *qdev)
 	ql_write32(qdev, SYS, mask | value);
 
 	/* Set the default queue, and VLAN behavior. */
-	value = NIC_RCV_CFG_DFQ | NIC_RCV_CFG_RV;
-	mask = NIC_RCV_CFG_DFQ_MASK | (NIC_RCV_CFG_RV << 16);
+	value = NIC_RCV_CFG_DFQ;
+	mask = NIC_RCV_CFG_DFQ_MASK;
+	if (qdev->ndev->features & NETIF_F_HW_VLAN_CTAG_RX) {
+		value |= NIC_RCV_CFG_RV;
+		mask |= (NIC_RCV_CFG_RV << 16);
+	}
 	ql_write32(qdev, NIC_RCV_CFG, (mask | value));
 
 	/* Set the MPI interrupt to enabled. */
@@ -4692,11 +4764,15 @@ static int qlge_probe(struct pci_dev *pdev,
 
 	qdev = netdev_priv(ndev);
 	SET_NETDEV_DEV(ndev, &pdev->dev);
-	ndev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM |
-		NETIF_F_TSO | NETIF_F_TSO_ECN |
-		NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_RXCSUM;
-	ndev->features = ndev->hw_features |
-		NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER;
+	ndev->hw_features = NETIF_F_SG |
+			    NETIF_F_IP_CSUM |
+			    NETIF_F_TSO |
+			    NETIF_F_TSO_ECN |
+			    NETIF_F_HW_VLAN_CTAG_TX |
+			    NETIF_F_HW_VLAN_CTAG_RX |
+			    NETIF_F_HW_VLAN_CTAG_FILTER |
+			    NETIF_F_RXCSUM;
+	ndev->features = ndev->hw_features;
 	ndev->vlan_features = ndev->hw_features;
 
 	if (test_bit(QL_DMA64, &qdev->flags))
-- 
cgit 


From 146669a5ab99285e95e2a7d04d8754534b585dd4 Mon Sep 17 00:00:00 2001
From: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Date: Fri, 27 Sep 2013 13:17:47 -0400
Subject: qlge: Update version to 1.00.00.33

Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/qlge/qlge.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/qlogic/qlge/qlge.h b/drivers/net/ethernet/qlogic/qlge/qlge.h
index cc62272d485b..0c9c4e895595 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge.h
+++ b/drivers/net/ethernet/qlogic/qlge/qlge.h
@@ -18,7 +18,7 @@
  */
 #define DRV_NAME  	"qlge"
 #define DRV_STRING 	"QLogic 10 Gigabit PCI-E Ethernet Driver "
-#define DRV_VERSION	"v1.00.00.32"
+#define DRV_VERSION	"1.00.00.33"
 
 #define WQ_ADDR_ALIGN	0x3	/* 4 byte alignment */
 
-- 
cgit 


From 0197ffed8690751b027253b97f68df6304aaa6a1 Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Sat, 21 Sep 2013 16:53:01 +0200
Subject: net: phy: at803x: don't pass function pointers with &

Just a cosmetic cleanup.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/phy/at803x.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index ac22283aaf23..417922810c79 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -163,8 +163,8 @@ static struct phy_driver at803x_driver[] = {
 	.get_wol	= at803x_get_wol,
 	.features	= PHY_GBIT_FEATURES,
 	.flags		= PHY_HAS_INTERRUPT,
-	.config_aneg	= &genphy_config_aneg,
-	.read_status	= &genphy_read_status,
+	.config_aneg	= genphy_config_aneg,
+	.read_status	= genphy_read_status,
 	.driver		= {
 		.owner = THIS_MODULE,
 	},
@@ -178,8 +178,8 @@ static struct phy_driver at803x_driver[] = {
 	.get_wol	= at803x_get_wol,
 	.features	= PHY_GBIT_FEATURES,
 	.flags		= PHY_HAS_INTERRUPT,
-	.config_aneg	= &genphy_config_aneg,
-	.read_status	= &genphy_read_status,
+	.config_aneg	= genphy_config_aneg,
+	.read_status	= genphy_read_status,
 	.driver		= {
 		.owner = THIS_MODULE,
 	},
@@ -193,8 +193,8 @@ static struct phy_driver at803x_driver[] = {
 	.get_wol	= at803x_get_wol,
 	.features	= PHY_GBIT_FEATURES,
 	.flags		= PHY_HAS_INTERRUPT,
-	.config_aneg	= &genphy_config_aneg,
-	.read_status	= &genphy_read_status,
+	.config_aneg	= genphy_config_aneg,
+	.read_status	= genphy_read_status,
 	.driver		= {
 		.owner = THIS_MODULE,
 	},
-- 
cgit 


From 6229ed1f22592d5ee8360a638cb965fef88b080f Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Sat, 21 Sep 2013 16:53:02 +0200
Subject: net: phy: at803x: add suspend/resume callbacks

When WOL is enabled, the chip can't be put into power-down (BMCR_PDOWN)
mode, as that will also switch off the MAC, which consequently leads to
a link loss.

Use BMCR_ISOLATE in that case, which will at least save us some
milliamperes in comparison to normal operation mode.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/phy/at803x.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 417922810c79..bc71947b1ec3 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -100,6 +100,45 @@ static void at803x_get_wol(struct phy_device *phydev,
 		wol->wolopts |= WAKE_MAGIC;
 }
 
+static int at803x_suspend(struct phy_device *phydev)
+{
+	int value;
+	int wol_enabled;
+
+	mutex_lock(&phydev->lock);
+
+	value = phy_read(phydev, AT803X_INTR_ENABLE);
+	wol_enabled = value & AT803X_WOL_ENABLE;
+
+	value = phy_read(phydev, MII_BMCR);
+
+	if (wol_enabled)
+		value |= BMCR_ISOLATE;
+	else
+		value |= BMCR_PDOWN;
+
+	phy_write(phydev, MII_BMCR, value);
+
+	mutex_unlock(&phydev->lock);
+
+	return 0;
+}
+
+static int at803x_resume(struct phy_device *phydev)
+{
+	int value;
+
+	mutex_lock(&phydev->lock);
+
+	value = phy_read(phydev, MII_BMCR);
+	value &= ~(BMCR_PDOWN | BMCR_ISOLATE);
+	phy_write(phydev, MII_BMCR, value);
+
+	mutex_unlock(&phydev->lock);
+
+	return 0;
+}
+
 static int at803x_config_init(struct phy_device *phydev)
 {
 	int val;
@@ -161,6 +200,8 @@ static struct phy_driver at803x_driver[] = {
 	.config_init	= at803x_config_init,
 	.set_wol	= at803x_set_wol,
 	.get_wol	= at803x_get_wol,
+	.suspend	= at803x_suspend,
+	.resume		= at803x_resume,
 	.features	= PHY_GBIT_FEATURES,
 	.flags		= PHY_HAS_INTERRUPT,
 	.config_aneg	= genphy_config_aneg,
@@ -176,6 +217,8 @@ static struct phy_driver at803x_driver[] = {
 	.config_init	= at803x_config_init,
 	.set_wol	= at803x_set_wol,
 	.get_wol	= at803x_get_wol,
+	.suspend	= at803x_suspend,
+	.resume		= at803x_resume,
 	.features	= PHY_GBIT_FEATURES,
 	.flags		= PHY_HAS_INTERRUPT,
 	.config_aneg	= genphy_config_aneg,
@@ -191,6 +234,8 @@ static struct phy_driver at803x_driver[] = {
 	.config_init	= at803x_config_init,
 	.set_wol	= at803x_set_wol,
 	.get_wol	= at803x_get_wol,
+	.suspend	= at803x_suspend,
+	.resume		= at803x_resume,
 	.features	= PHY_GBIT_FEATURES,
 	.flags		= PHY_HAS_INTERRUPT,
 	.config_aneg	= genphy_config_aneg,
-- 
cgit 


From 8d2ca1d7b5c3e63b3a8a81ae99015b615c5f2bf7 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Sat, 21 Sep 2013 16:55:59 +0200
Subject: ipv6: avoid high order memory allocations for /proc/net/ipv6_route

Dumping routes on a system with lots rt6_infos in the fibs causes up to
11-order allocations in seq_file (which fail). While we could switch
there to vmalloc we could just implement the streaming interface for
/proc/net/ipv6_route. This patch switches /proc/net/ipv6_route from
single_open_net to seq_open_net.

loff_t *pos tracks dst entries.

Also kill never used struct rt6_proc_arg and now unused function
fib6_clean_all_ro.

Cc: Ben Greear <greearb@candelatech.com>
Cc: Patrick McHardy <kaber@trash.net>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/ip6_fib.h |   6 +-
 net/ipv6/ip6_fib.c    | 191 +++++++++++++++++++++++++++++++++++++++++++++-----
 net/ipv6/route.c      |  46 +-----------
 3 files changed, 175 insertions(+), 68 deletions(-)

diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index eab88f0e2088..6738f3409a6f 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -280,10 +280,6 @@ struct fib6_node *fib6_locate(struct fib6_node *root,
 			      const struct in6_addr *daddr, int dst_len,
 			      const struct in6_addr *saddr, int src_len);
 
-void fib6_clean_all_ro(struct net *net,
-		       int (*func)(struct rt6_info *, void *arg),
-		       int prune, void *arg);
-
 void fib6_clean_all(struct net *net, int (*func)(struct rt6_info *, void *arg),
 		    int prune, void *arg);
 
@@ -299,6 +295,8 @@ void fib6_gc_cleanup(void);
 
 int fib6_init(void);
 
+int ipv6_route_open(struct inode *inode, struct file *file);
+
 #ifdef CONFIG_IPV6_MULTIPLE_TABLES
 int fib6_rules_init(void);
 void fib6_rules_cleanup(void);
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 5bec666aba61..05ffa54fcf21 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -1529,25 +1529,6 @@ static void fib6_clean_tree(struct net *net, struct fib6_node *root,
 	fib6_walk(&c.w);
 }
 
-void fib6_clean_all_ro(struct net *net, int (*func)(struct rt6_info *, void *arg),
-		    int prune, void *arg)
-{
-	struct fib6_table *table;
-	struct hlist_head *head;
-	unsigned int h;
-
-	rcu_read_lock();
-	for (h = 0; h < FIB6_TABLE_HASHSZ; h++) {
-		head = &net->ipv6.fib_table_hash[h];
-		hlist_for_each_entry_rcu(table, head, tb6_hlist) {
-			read_lock_bh(&table->tb6_lock);
-			fib6_clean_tree(net, &table->tb6_root,
-					func, prune, arg);
-			read_unlock_bh(&table->tb6_lock);
-		}
-	}
-	rcu_read_unlock();
-}
 void fib6_clean_all(struct net *net, int (*func)(struct rt6_info *, void *arg),
 		    int prune, void *arg)
 {
@@ -1782,3 +1763,175 @@ void fib6_gc_cleanup(void)
 	unregister_pernet_subsys(&fib6_net_ops);
 	kmem_cache_destroy(fib6_node_kmem);
 }
+
+#ifdef CONFIG_PROC_FS
+
+struct ipv6_route_iter {
+	struct seq_net_private p;
+	struct fib6_walker_t w;
+	loff_t skip;
+	struct fib6_table *tbl;
+};
+
+static int ipv6_route_seq_show(struct seq_file *seq, void *v)
+{
+	struct rt6_info *rt = v;
+	struct ipv6_route_iter *iter = seq->private;
+
+	seq_printf(seq, "%pi6 %02x ", &rt->rt6i_dst.addr, rt->rt6i_dst.plen);
+
+#ifdef CONFIG_IPV6_SUBTREES
+	seq_printf(seq, "%pi6 %02x ", &rt->rt6i_src.addr, rt->rt6i_src.plen);
+#else
+	seq_puts(seq, "00000000000000000000000000000000 00 ");
+#endif
+	if (rt->rt6i_flags & RTF_GATEWAY)
+		seq_printf(seq, "%pi6", &rt->rt6i_gateway);
+	else
+		seq_puts(seq, "00000000000000000000000000000000");
+
+	seq_printf(seq, " %08x %08x %08x %08x %8s\n",
+		   rt->rt6i_metric, atomic_read(&rt->dst.__refcnt),
+		   rt->dst.__use, rt->rt6i_flags,
+		   rt->dst.dev ? rt->dst.dev->name : "");
+	iter->w.leaf = NULL;
+	return 0;
+}
+
+static int ipv6_route_yield(struct fib6_walker_t *w)
+{
+	struct ipv6_route_iter *iter = w->args;
+
+	if (!iter->skip)
+		return 1;
+
+	do {
+		iter->w.leaf = iter->w.leaf->dst.rt6_next;
+		iter->skip--;
+		if (!iter->skip && iter->w.leaf)
+			return 1;
+	} while (iter->w.leaf);
+
+	return 0;
+}
+
+static void ipv6_route_seq_setup_walk(struct ipv6_route_iter *iter)
+{
+	memset(&iter->w, 0, sizeof(iter->w));
+	iter->w.func = ipv6_route_yield;
+	iter->w.root = &iter->tbl->tb6_root;
+	iter->w.state = FWS_INIT;
+	iter->w.node = iter->w.root;
+	iter->w.args = iter;
+	INIT_LIST_HEAD(&iter->w.lh);
+	fib6_walker_link(&iter->w);
+}
+
+static struct fib6_table *ipv6_route_seq_next_table(struct fib6_table *tbl,
+						    struct net *net)
+{
+	unsigned int h;
+	struct hlist_node *node;
+
+	if (tbl) {
+		h = (tbl->tb6_id & (FIB6_TABLE_HASHSZ - 1)) + 1;
+		node = rcu_dereference_bh(hlist_next_rcu(&tbl->tb6_hlist));
+	} else {
+		h = 0;
+		node = NULL;
+	}
+
+	while (!node && h < FIB6_TABLE_HASHSZ) {
+		node = rcu_dereference_bh(
+			hlist_first_rcu(&net->ipv6.fib_table_hash[h++]));
+	}
+	return hlist_entry_safe(node, struct fib6_table, tb6_hlist);
+}
+
+static void *ipv6_route_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+	int r;
+	struct rt6_info *n;
+	struct net *net = seq_file_net(seq);
+	struct ipv6_route_iter *iter = seq->private;
+
+	if (!v)
+		goto iter_table;
+
+	n = ((struct rt6_info *)v)->dst.rt6_next;
+	if (n) {
+		++*pos;
+		return n;
+	}
+
+iter_table:
+	read_lock(&iter->tbl->tb6_lock);
+	r = fib6_walk_continue(&iter->w);
+	read_unlock(&iter->tbl->tb6_lock);
+	if (r > 0) {
+		if (v)
+			++*pos;
+		return iter->w.leaf;
+	} else if (r < 0) {
+		fib6_walker_unlink(&iter->w);
+		return NULL;
+	}
+	fib6_walker_unlink(&iter->w);
+
+	iter->tbl = ipv6_route_seq_next_table(iter->tbl, net);
+	if (!iter->tbl)
+		return NULL;
+
+	ipv6_route_seq_setup_walk(iter);
+	goto iter_table;
+}
+
+static void *ipv6_route_seq_start(struct seq_file *seq, loff_t *pos)
+	__acquires(RCU_BH)
+{
+	struct net *net = seq_file_net(seq);
+	struct ipv6_route_iter *iter = seq->private;
+
+	rcu_read_lock_bh();
+	iter->tbl = ipv6_route_seq_next_table(NULL, net);
+	iter->skip = *pos;
+
+	if (iter->tbl) {
+		ipv6_route_seq_setup_walk(iter);
+		return ipv6_route_seq_next(seq, NULL, pos);
+	} else {
+		return NULL;
+	}
+}
+
+static bool ipv6_route_iter_active(struct ipv6_route_iter *iter)
+{
+	struct fib6_walker_t *w = &iter->w;
+	return w->node && !(w->state == FWS_U && w->node == w->root);
+}
+
+static void ipv6_route_seq_stop(struct seq_file *seq, void *v)
+	__releases(RCU_BH)
+{
+	struct ipv6_route_iter *iter = seq->private;
+
+	if (ipv6_route_iter_active(iter))
+		fib6_walker_unlink(&iter->w);
+
+	rcu_read_unlock_bh();
+}
+
+static const struct seq_operations ipv6_route_seq_ops = {
+	.start	= ipv6_route_seq_start,
+	.next	= ipv6_route_seq_next,
+	.stop	= ipv6_route_seq_stop,
+	.show	= ipv6_route_seq_show
+};
+
+int ipv6_route_open(struct inode *inode, struct file *file)
+{
+	return seq_open_net(inode, file, &ipv6_route_seq_ops,
+			    sizeof(struct ipv6_route_iter));
+}
+
+#endif /* CONFIG_PROC_FS */
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index c979dd96d82a..aa901bb60cf2 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -2800,56 +2800,12 @@ static int ip6_route_dev_notify(struct notifier_block *this,
 
 #ifdef CONFIG_PROC_FS
 
-struct rt6_proc_arg
-{
-	char *buffer;
-	int offset;
-	int length;
-	int skip;
-	int len;
-};
-
-static int rt6_info_route(struct rt6_info *rt, void *p_arg)
-{
-	struct seq_file *m = p_arg;
-
-	seq_printf(m, "%pi6 %02x ", &rt->rt6i_dst.addr, rt->rt6i_dst.plen);
-
-#ifdef CONFIG_IPV6_SUBTREES
-	seq_printf(m, "%pi6 %02x ", &rt->rt6i_src.addr, rt->rt6i_src.plen);
-#else
-	seq_puts(m, "00000000000000000000000000000000 00 ");
-#endif
-	if (rt->rt6i_flags & RTF_GATEWAY) {
-		seq_printf(m, "%pi6", &rt->rt6i_gateway);
-	} else {
-		seq_puts(m, "00000000000000000000000000000000");
-	}
-	seq_printf(m, " %08x %08x %08x %08x %8s\n",
-		   rt->rt6i_metric, atomic_read(&rt->dst.__refcnt),
-		   rt->dst.__use, rt->rt6i_flags,
-		   rt->dst.dev ? rt->dst.dev->name : "");
-	return 0;
-}
-
-static int ipv6_route_show(struct seq_file *m, void *v)
-{
-	struct net *net = (struct net *)m->private;
-	fib6_clean_all_ro(net, rt6_info_route, 0, m);
-	return 0;
-}
-
-static int ipv6_route_open(struct inode *inode, struct file *file)
-{
-	return single_open_net(inode, file, ipv6_route_show);
-}
-
 static const struct file_operations ipv6_route_proc_fops = {
 	.owner		= THIS_MODULE,
 	.open		= ipv6_route_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
-	.release	= single_release_net,
+	.release	= seq_release_net,
 };
 
 static int rt6_stats_seq_show(struct seq_file *seq, void *v)
-- 
cgit 


From 0a67d3efa4e3223452c96d8c962d7c077ef80ff3 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Sat, 21 Sep 2013 16:56:10 +0200
Subject: ipv6: compare sernum when walking fib for /proc/net/ipv6_route as
 safety net

This patch provides an additional safety net against NULL
pointer dereferences while walking the fib trie for the new
/proc/net/ipv6_route walkers. I never needed it myself and am unsure
if it is needed at all, but the same checks where introduced in
2bec5a369ee79576a3eea2c23863325089785a2c ("ipv6: fib: fix crash when
changing large fib while dumping it") to fix NULL pointer bugs.

This patch is separated from the first patch to make it easier to revert
if we are sure we can drop this logic.

Cc: Ben Greear <greearb@candelatech.com>
Cc: Patrick McHardy <kaber@trash.net>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/ip6_fib.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index 05ffa54fcf21..5550a8113a6d 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -1771,6 +1771,7 @@ struct ipv6_route_iter {
 	struct fib6_walker_t w;
 	loff_t skip;
 	struct fib6_table *tbl;
+	__u32 sernum;
 };
 
 static int ipv6_route_seq_show(struct seq_file *seq, void *v)
@@ -1823,6 +1824,7 @@ static void ipv6_route_seq_setup_walk(struct ipv6_route_iter *iter)
 	iter->w.state = FWS_INIT;
 	iter->w.node = iter->w.root;
 	iter->w.args = iter;
+	iter->sernum = iter->w.root->fn_sernum;
 	INIT_LIST_HEAD(&iter->w.lh);
 	fib6_walker_link(&iter->w);
 }
@@ -1848,6 +1850,17 @@ static struct fib6_table *ipv6_route_seq_next_table(struct fib6_table *tbl,
 	return hlist_entry_safe(node, struct fib6_table, tb6_hlist);
 }
 
+static void ipv6_route_check_sernum(struct ipv6_route_iter *iter)
+{
+	if (iter->sernum != iter->w.root->fn_sernum) {
+		iter->sernum = iter->w.root->fn_sernum;
+		iter->w.state = FWS_INIT;
+		iter->w.node = iter->w.root;
+		WARN_ON(iter->w.skip);
+		iter->w.skip = iter->w.count;
+	}
+}
+
 static void *ipv6_route_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 {
 	int r;
@@ -1865,6 +1878,7 @@ static void *ipv6_route_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 	}
 
 iter_table:
+	ipv6_route_check_sernum(iter);
 	read_lock(&iter->tbl->tb6_lock);
 	r = fib6_walk_continue(&iter->w);
 	read_unlock(&iter->tbl->tb6_lock);
-- 
cgit 


From 307fc4d727a795f720a8c529223dcda9729fc402 Mon Sep 17 00:00:00 2001
From: Mihir Singh <me@mihirsingh.com>
Date: Sat, 21 Sep 2013 18:48:09 +0000
Subject: hp100: replace hardcoded name in /proc/interrupts with interface name

The /proc/interrupts file displays hp100, which is not the accepted style. Printing eth%d is more helpful.

Signed-off-by: Mihir Singh <me@mihirsingh.com>
Reviewed-By: Matthew Whitehead <tedheadster@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/hp/hp100.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/hp/hp100.c b/drivers/net/ethernet/hp/hp100.c
index 91227d03274e..37860096f744 100644
--- a/drivers/net/ethernet/hp/hp100.c
+++ b/drivers/net/ethernet/hp/hp100.c
@@ -1098,7 +1098,7 @@ static int hp100_open(struct net_device *dev)
 	if (request_irq(dev->irq, hp100_interrupt,
 			lp->bus == HP100_BUS_PCI || lp->bus ==
 			HP100_BUS_EISA ? IRQF_SHARED : 0,
-			"hp100", dev)) {
+			dev->name, dev)) {
 		printk("hp100: %s: unable to get IRQ %d\n", dev->name, dev->irq);
 		return -EAGAIN;
 	}
-- 
cgit 


From f0e28d48c8641beac1239e484383c2b4764b1f02 Mon Sep 17 00:00:00 2001
From: Nate Levesque <thenaterhood@gmail.com>
Date: Sat, 21 Sep 2013 18:49:41 +0000
Subject: lance: Fix hardcoded interrupt name lp->name to use system device
 value

The lance interrupt handler was using the hard-coded name which would make it difficult to tell where the interrupt came from. Changed to use the device name that made the interrupt.

Signed-off-by: Nate Levesque <thenaterhood@gmail.com>
Reviewed-by: Matthew Whitehead <tedheadster@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/amd/lance.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/amd/lance.c b/drivers/net/ethernet/amd/lance.c
index 5c728436b85e..256f590f6bb1 100644
--- a/drivers/net/ethernet/amd/lance.c
+++ b/drivers/net/ethernet/amd/lance.c
@@ -754,7 +754,7 @@ lance_open(struct net_device *dev)
 	int i;
 
 	if (dev->irq == 0 ||
-		request_irq(dev->irq, lance_interrupt, 0, lp->name, dev)) {
+		request_irq(dev->irq, lance_interrupt, 0, dev->name, dev)) {
 		return -EAGAIN;
 	}
 
-- 
cgit 


From 2ce585286d217c1c753bec29ea6f52080a05ced5 Mon Sep 17 00:00:00 2001
From: Sudeep Dutt <sudeep.dutt@intel.com>
Date: Fri, 27 Sep 2013 09:49:31 -0700
Subject: misc: mic: host driver sysfs cleanups.

+ Use DEVICE_ATTR_RO/RW instead of DEVICE_ATTR
+ Use ATTRIBUTE_GROUPS

These changes were suggested by Greg Kroah-Hartman during the
code review @ https://lkml.org/lkml/2013/9/6/13

Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Harshavardhan R Kharche <harshavardhan.r.kharche@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mic/host/mic_sysfs.c | 72 ++++++++++++++++-----------------------
 1 file changed, 29 insertions(+), 43 deletions(-)

diff --git a/drivers/misc/mic/host/mic_sysfs.c b/drivers/misc/mic/host/mic_sysfs.c
index aaf849945111..bebbae2fa9f8 100644
--- a/drivers/misc/mic/host/mic_sysfs.c
+++ b/drivers/misc/mic/host/mic_sysfs.c
@@ -65,7 +65,7 @@ void mic_set_state(struct mic_device *mdev, u8 state)
 }
 
 static ssize_t
-mic_show_family(struct device *dev, struct device_attribute *attr, char *buf)
+family_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	static const char x100[] = "x100";
 	static const char unknown[] = "Unknown";
@@ -85,10 +85,10 @@ mic_show_family(struct device *dev, struct device_attribute *attr, char *buf)
 	}
 	return scnprintf(buf, PAGE_SIZE, "%s\n", card);
 }
-static DEVICE_ATTR(family, S_IRUGO, mic_show_family, NULL);
+static DEVICE_ATTR_RO(family);
 
 static ssize_t
-mic_show_stepping(struct device *dev, struct device_attribute *attr, char *buf)
+stepping_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
 	char *string = "??";
@@ -114,10 +114,10 @@ mic_show_stepping(struct device *dev, struct device_attribute *attr, char *buf)
 	}
 	return scnprintf(buf, PAGE_SIZE, "%s\n", string);
 }
-static DEVICE_ATTR(stepping, S_IRUGO, mic_show_stepping, NULL);
+static DEVICE_ATTR_RO(stepping);
 
 static ssize_t
-mic_show_state(struct device *dev, struct device_attribute *attr, char *buf)
+state_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
 
@@ -129,7 +129,7 @@ mic_show_state(struct device *dev, struct device_attribute *attr, char *buf)
 }
 
 static ssize_t
-mic_store_state(struct device *dev, struct device_attribute *attr,
+state_store(struct device *dev, struct device_attribute *attr,
 	const char *buf, size_t count)
 {
 	int rc = 0;
@@ -160,9 +160,9 @@ mic_store_state(struct device *dev, struct device_attribute *attr,
 done:
 	return count;
 }
-static DEVICE_ATTR(state, S_IRUGO|S_IWUSR, mic_show_state, mic_store_state);
+static DEVICE_ATTR_RW(state);
 
-static ssize_t mic_show_shutdown_status(struct device *dev,
+static ssize_t shutdown_status_show(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
@@ -173,11 +173,10 @@ static ssize_t mic_show_shutdown_status(struct device *dev,
 	return scnprintf(buf, PAGE_SIZE, "%s\n",
 		mic_shutdown_status_string[mdev->shutdown_status]);
 }
-static DEVICE_ATTR(shutdown_status, S_IRUGO|S_IWUSR,
-	mic_show_shutdown_status, NULL);
+static DEVICE_ATTR_RO(shutdown_status);
 
 static ssize_t
-mic_show_cmdline(struct device *dev, struct device_attribute *attr, char *buf)
+cmdline_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
 	char *cmdline;
@@ -193,7 +192,7 @@ mic_show_cmdline(struct device *dev, struct device_attribute *attr, char *buf)
 }
 
 static ssize_t
-mic_store_cmdline(struct device *dev, struct device_attribute *attr,
+cmdline_store(struct device *dev, struct device_attribute *attr,
 	const char *buf, size_t count)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
@@ -220,11 +219,10 @@ unlock:
 	mutex_unlock(&mdev->mic_mutex);
 	return count;
 }
-static DEVICE_ATTR(cmdline, S_IRUGO | S_IWUSR,
-	mic_show_cmdline, mic_store_cmdline);
+static DEVICE_ATTR_RW(cmdline);
 
 static ssize_t
-mic_show_firmware(struct device *dev, struct device_attribute *attr, char *buf)
+firmware_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
 	char *firmware;
@@ -240,7 +238,7 @@ mic_show_firmware(struct device *dev, struct device_attribute *attr, char *buf)
 }
 
 static ssize_t
-mic_store_firmware(struct device *dev, struct device_attribute *attr,
+firmware_store(struct device *dev, struct device_attribute *attr,
 	const char *buf, size_t count)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
@@ -266,11 +264,10 @@ unlock:
 	mutex_unlock(&mdev->mic_mutex);
 	return count;
 }
-static DEVICE_ATTR(firmware, S_IRUGO | S_IWUSR,
-	mic_show_firmware, mic_store_firmware);
+static DEVICE_ATTR_RW(firmware);
 
 static ssize_t
-mic_show_ramdisk(struct device *dev, struct device_attribute *attr, char *buf)
+ramdisk_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
 	char *ramdisk;
@@ -286,7 +283,7 @@ mic_show_ramdisk(struct device *dev, struct device_attribute *attr, char *buf)
 }
 
 static ssize_t
-mic_store_ramdisk(struct device *dev, struct device_attribute *attr,
+ramdisk_store(struct device *dev, struct device_attribute *attr,
 	const char *buf, size_t count)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
@@ -313,11 +310,10 @@ unlock:
 	mutex_unlock(&mdev->mic_mutex);
 	return count;
 }
-static DEVICE_ATTR(ramdisk, S_IRUGO | S_IWUSR,
-	mic_show_ramdisk, mic_store_ramdisk);
+static DEVICE_ATTR_RW(ramdisk);
 
 static ssize_t
-mic_show_bootmode(struct device *dev, struct device_attribute *attr, char *buf)
+bootmode_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
 	char *bootmode;
@@ -333,7 +329,7 @@ mic_show_bootmode(struct device *dev, struct device_attribute *attr, char *buf)
 }
 
 static ssize_t
-mic_store_bootmode(struct device *dev, struct device_attribute *attr,
+bootmode_store(struct device *dev, struct device_attribute *attr,
 	const char *buf, size_t count)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
@@ -363,11 +359,10 @@ unlock:
 	mutex_unlock(&mdev->mic_mutex);
 	return count;
 }
-static DEVICE_ATTR(bootmode, S_IRUGO | S_IWUSR,
-	mic_show_bootmode, mic_store_bootmode);
+static DEVICE_ATTR_RW(bootmode);
 
 static ssize_t
-mic_show_log_buf_addr(struct device *dev, struct device_attribute *attr,
+log_buf_addr_show(struct device *dev, struct device_attribute *attr,
 	char *buf)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
@@ -379,7 +374,7 @@ mic_show_log_buf_addr(struct device *dev, struct device_attribute *attr,
 }
 
 static ssize_t
-mic_store_log_buf_addr(struct device *dev, struct device_attribute *attr,
+log_buf_addr_store(struct device *dev, struct device_attribute *attr,
 	const char *buf, size_t count)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
@@ -398,11 +393,10 @@ mic_store_log_buf_addr(struct device *dev, struct device_attribute *attr,
 exit:
 	return ret;
 }
-static DEVICE_ATTR(log_buf_addr, S_IRUGO | S_IWUSR,
-	mic_show_log_buf_addr, mic_store_log_buf_addr);
+static DEVICE_ATTR_RW(log_buf_addr);
 
 static ssize_t
-mic_show_log_buf_len(struct device *dev, struct device_attribute *attr,
+log_buf_len_show(struct device *dev, struct device_attribute *attr,
 	char *buf)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
@@ -414,7 +408,7 @@ mic_show_log_buf_len(struct device *dev, struct device_attribute *attr,
 }
 
 static ssize_t
-mic_store_log_buf_len(struct device *dev, struct device_attribute *attr,
+log_buf_len_store(struct device *dev, struct device_attribute *attr,
 	const char *buf, size_t count)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
@@ -433,8 +427,7 @@ mic_store_log_buf_len(struct device *dev, struct device_attribute *attr,
 exit:
 	return ret;
 }
-static DEVICE_ATTR(log_buf_len, S_IRUGO | S_IWUSR,
-	mic_show_log_buf_len, mic_store_log_buf_len);
+static DEVICE_ATTR_RW(log_buf_len);
 
 static struct attribute *mic_default_attrs[] = {
 	&dev_attr_family.attr,
@@ -451,16 +444,9 @@ static struct attribute *mic_default_attrs[] = {
 	NULL
 };
 
-static struct attribute_group mic_attr_group = {
-	.attrs = mic_default_attrs,
-};
-
-static const struct attribute_group *__mic_attr_group[] = {
-	&mic_attr_group,
-	NULL
-};
+ATTRIBUTE_GROUPS(mic_default);
 
 void mic_sysfs_init(struct mic_device *mdev)
 {
-	mdev->attr_group = __mic_attr_group;
+	mdev->attr_group = mic_default_groups;
 }
-- 
cgit 


From 4aa79961a50119d6112a160e97d5e6a77656b68c Mon Sep 17 00:00:00 2001
From: Sudeep Dutt <sudeep.dutt@intel.com>
Date: Fri, 27 Sep 2013 09:49:42 -0700
Subject: misc: mic: header file cleanups.

Dont use same name for header files in different folders.

These changes were suggested by Greg Kroah-Hartman during the
code review @ https://lkml.org/lkml/2013/9/6/18

Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Harshavardhan R Kharche <harshavardhan.r.kharche@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mic/card/mic_debugfs.c  |  2 +-
 drivers/misc/mic/card/mic_device.c   |  2 +-
 drivers/misc/mic/card/mic_virtio.c   |  2 +-
 drivers/misc/mic/card/mic_x100.c     |  2 +-
 drivers/misc/mic/common/mic_dev.h    | 51 ++++++++++++++++++++++++++++++++++++
 drivers/misc/mic/common/mic_device.h | 51 ------------------------------------
 drivers/misc/mic/host/mic_boot.c     |  2 +-
 drivers/misc/mic/host/mic_debugfs.c  |  2 +-
 drivers/misc/mic/host/mic_fops.c     |  2 +-
 drivers/misc/mic/host/mic_intr.c     |  2 +-
 drivers/misc/mic/host/mic_main.c     |  2 +-
 drivers/misc/mic/host/mic_smpt.c     |  2 +-
 drivers/misc/mic/host/mic_sysfs.c    |  2 +-
 drivers/misc/mic/host/mic_virtio.c   |  2 +-
 drivers/misc/mic/host/mic_x100.c     |  2 +-
 15 files changed, 64 insertions(+), 64 deletions(-)
 create mode 100644 drivers/misc/mic/common/mic_dev.h
 delete mode 100644 drivers/misc/mic/common/mic_device.h

diff --git a/drivers/misc/mic/card/mic_debugfs.c b/drivers/misc/mic/card/mic_debugfs.c
index 95cf186ff73a..421b3d7911df 100644
--- a/drivers/misc/mic/card/mic_debugfs.c
+++ b/drivers/misc/mic/card/mic_debugfs.c
@@ -30,7 +30,7 @@
 #include <linux/interrupt.h>
 #include <linux/device.h>
 
-#include "../common/mic_device.h"
+#include "../common/mic_dev.h"
 #include "mic_device.h"
 
 /* Debugfs parent dir */
diff --git a/drivers/misc/mic/card/mic_device.c b/drivers/misc/mic/card/mic_device.c
index 4125217579af..175d11425636 100644
--- a/drivers/misc/mic/card/mic_device.c
+++ b/drivers/misc/mic/card/mic_device.c
@@ -30,7 +30,7 @@
 #include <linux/reboot.h>
 
 #include <linux/mic_common.h>
-#include "../common/mic_device.h"
+#include "../common/mic_dev.h"
 #include "mic_device.h"
 #include "mic_virtio.h"
 
diff --git a/drivers/misc/mic/card/mic_virtio.c b/drivers/misc/mic/card/mic_virtio.c
index 38275c1b9e03..7420c33d8f65 100644
--- a/drivers/misc/mic/card/mic_virtio.c
+++ b/drivers/misc/mic/card/mic_virtio.c
@@ -40,7 +40,7 @@
 #include <linux/slab.h>
 #include <linux/virtio_config.h>
 
-#include "../common/mic_device.h"
+#include "../common/mic_dev.h"
 #include "mic_virtio.h"
 
 #define VIRTIO_SUBCODE_64 0x0D00
diff --git a/drivers/misc/mic/card/mic_x100.c b/drivers/misc/mic/card/mic_x100.c
index 7cb3469cf684..f491c9163bb2 100644
--- a/drivers/misc/mic/card/mic_x100.c
+++ b/drivers/misc/mic/card/mic_x100.c
@@ -28,7 +28,7 @@
 #include <linux/pci.h>
 #include <linux/platform_device.h>
 
-#include "../common/mic_device.h"
+#include "../common/mic_dev.h"
 #include "mic_device.h"
 #include "mic_x100.h"
 
diff --git a/drivers/misc/mic/common/mic_dev.h b/drivers/misc/mic/common/mic_dev.h
new file mode 100644
index 000000000000..92999c2bbf82
--- /dev/null
+++ b/drivers/misc/mic/common/mic_dev.h
@@ -0,0 +1,51 @@
+/*
+ * Intel MIC Platform Software Stack (MPSS)
+ *
+ * Copyright(c) 2013 Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Intel MIC driver.
+ *
+ */
+#ifndef __MIC_DEV_H__
+#define __MIC_DEV_H__
+
+/**
+ * struct mic_mw - MIC memory window
+ *
+ * @pa: Base physical address.
+ * @va: Base ioremap'd virtual address.
+ * @len: Size of the memory window.
+ */
+struct mic_mw {
+	phys_addr_t pa;
+	void __iomem *va;
+	resource_size_t len;
+};
+
+/*
+ * Scratch pad register offsets used by the host to communicate
+ * device page DMA address to the card.
+ */
+#define MIC_DPLO_SPAD 14
+#define MIC_DPHI_SPAD 15
+
+/*
+ * These values are supposed to be in the config_change field of the
+ * device page when the host sends a config change interrupt to the card.
+ */
+#define MIC_VIRTIO_PARAM_DEV_REMOVE 0x1
+#define MIC_VIRTIO_PARAM_CONFIG_CHANGED 0x2
+
+#endif
diff --git a/drivers/misc/mic/common/mic_device.h b/drivers/misc/mic/common/mic_device.h
deleted file mode 100644
index 01eb74faae6b..000000000000
--- a/drivers/misc/mic/common/mic_device.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * Intel MIC Platform Software Stack (MPSS)
- *
- * Copyright(c) 2013 Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License, version 2, as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * The full GNU General Public License is included in this distribution in
- * the file called "COPYING".
- *
- * Intel MIC driver.
- *
- */
-#ifndef __MIC_COMMON_DEVICE_H_
-#define __MIC_COMMON_DEVICE_H_
-
-/**
- * struct mic_mw - MIC memory window
- *
- * @pa: Base physical address.
- * @va: Base ioremap'd virtual address.
- * @len: Size of the memory window.
- */
-struct mic_mw {
-	phys_addr_t pa;
-	void __iomem *va;
-	resource_size_t len;
-};
-
-/*
- * Scratch pad register offsets used by the host to communicate
- * device page DMA address to the card.
- */
-#define MIC_DPLO_SPAD 14
-#define MIC_DPHI_SPAD 15
-
-/*
- * These values are supposed to be in the config_change field of the
- * device page when the host sends a config change interrupt to the card.
- */
-#define MIC_VIRTIO_PARAM_DEV_REMOVE 0x1
-#define MIC_VIRTIO_PARAM_CONFIG_CHANGED 0x2
-
-#endif
diff --git a/drivers/misc/mic/host/mic_boot.c b/drivers/misc/mic/host/mic_boot.c
index fd9ff6d3784e..60c54d5c43c2 100644
--- a/drivers/misc/mic/host/mic_boot.c
+++ b/drivers/misc/mic/host/mic_boot.c
@@ -22,7 +22,7 @@
 #include <linux/firmware.h>
 
 #include <linux/mic_common.h>
-#include "../common/mic_device.h"
+#include "../common/mic_dev.h"
 #include "mic_device.h"
 #include "mic_smpt.h"
 #include "mic_virtio.h"
diff --git a/drivers/misc/mic/host/mic_debugfs.c b/drivers/misc/mic/host/mic_debugfs.c
index e22fb7bbbb98..98a61b4319f4 100644
--- a/drivers/misc/mic/host/mic_debugfs.c
+++ b/drivers/misc/mic/host/mic_debugfs.c
@@ -23,7 +23,7 @@
 #include <linux/seq_file.h>
 
 #include <linux/mic_common.h>
-#include "../common/mic_device.h"
+#include "../common/mic_dev.h"
 #include "mic_device.h"
 #include "mic_smpt.h"
 #include "mic_virtio.h"
diff --git a/drivers/misc/mic/host/mic_fops.c b/drivers/misc/mic/host/mic_fops.c
index 661469ad339d..e699c80a8c0a 100644
--- a/drivers/misc/mic/host/mic_fops.c
+++ b/drivers/misc/mic/host/mic_fops.c
@@ -21,7 +21,7 @@
 #include <linux/poll.h>
 
 #include <linux/mic_common.h>
-#include "../common/mic_device.h"
+#include "../common/mic_dev.h"
 #include "mic_device.h"
 #include "mic_fops.h"
 #include "mic_virtio.h"
diff --git a/drivers/misc/mic/host/mic_intr.c b/drivers/misc/mic/host/mic_intr.c
index cdae3141dbb9..71a7521cf1a4 100644
--- a/drivers/misc/mic/host/mic_intr.c
+++ b/drivers/misc/mic/host/mic_intr.c
@@ -21,7 +21,7 @@
 #include <linux/pci.h>
 #include <linux/interrupt.h>
 
-#include "../common/mic_device.h"
+#include "../common/mic_dev.h"
 #include "mic_device.h"
 
 /*
diff --git a/drivers/misc/mic/host/mic_main.c b/drivers/misc/mic/host/mic_main.c
index a8965d496e84..ca06aa9b7114 100644
--- a/drivers/misc/mic/host/mic_main.c
+++ b/drivers/misc/mic/host/mic_main.c
@@ -28,7 +28,7 @@
 #include <linux/poll.h>
 
 #include <linux/mic_common.h>
-#include "../common/mic_device.h"
+#include "../common/mic_dev.h"
 #include "mic_device.h"
 #include "mic_x100.h"
 #include "mic_smpt.h"
diff --git a/drivers/misc/mic/host/mic_smpt.c b/drivers/misc/mic/host/mic_smpt.c
index a3462076bc57..003d02b212be 100644
--- a/drivers/misc/mic/host/mic_smpt.c
+++ b/drivers/misc/mic/host/mic_smpt.c
@@ -20,7 +20,7 @@
  */
 #include <linux/pci.h>
 
-#include "../common/mic_device.h"
+#include "../common/mic_dev.h"
 #include "mic_device.h"
 #include "mic_smpt.h"
 
diff --git a/drivers/misc/mic/host/mic_sysfs.c b/drivers/misc/mic/host/mic_sysfs.c
index bebbae2fa9f8..029a4f31bee7 100644
--- a/drivers/misc/mic/host/mic_sysfs.c
+++ b/drivers/misc/mic/host/mic_sysfs.c
@@ -21,7 +21,7 @@
 #include <linux/pci.h>
 
 #include <linux/mic_common.h>
-#include "../common/mic_device.h"
+#include "../common/mic_dev.h"
 #include "mic_device.h"
 
 /*
diff --git a/drivers/misc/mic/host/mic_virtio.c b/drivers/misc/mic/host/mic_virtio.c
index be2a1f06c4ca..9e0456fb1ea8 100644
--- a/drivers/misc/mic/host/mic_virtio.c
+++ b/drivers/misc/mic/host/mic_virtio.c
@@ -23,7 +23,7 @@
 #include <linux/uaccess.h>
 
 #include <linux/mic_common.h>
-#include "../common/mic_device.h"
+#include "../common/mic_dev.h"
 #include "mic_device.h"
 #include "mic_smpt.h"
 #include "mic_virtio.h"
diff --git a/drivers/misc/mic/host/mic_x100.c b/drivers/misc/mic/host/mic_x100.c
index a12ae5c8844d..3a0d660bad4a 100644
--- a/drivers/misc/mic/host/mic_x100.c
+++ b/drivers/misc/mic/host/mic_x100.c
@@ -24,7 +24,7 @@
 #include <linux/firmware.h>
 #include <linux/delay.h>
 
-#include "../common/mic_device.h"
+#include "../common/mic_dev.h"
 #include "mic_device.h"
 #include "mic_x100.h"
 #include "mic_smpt.h"
-- 
cgit 


From ced2c60fb5024a5cf5c33cb573b3d6a66d738f36 Mon Sep 17 00:00:00 2001
From: Ashutosh Dixit <ashutosh.dixit@intel.com>
Date: Fri, 27 Sep 2013 09:49:53 -0700
Subject: misc: mic: cleanups for "--strict" checkpatch.

These changes were mostly authored by Joe Perches <joe@perches.com>
@ https://lkml.org/lkml/2013/9/5/602

Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Harshavardhan R Kharche <harshavardhan.r.kharche@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/mic/mpssd/mpssd.c     | 65 ++++++++++++++-------------
 Documentation/mic/mpssd/sysfs.c     |  4 +-
 drivers/misc/mic/card/mic_device.c  |  1 -
 drivers/misc/mic/card/mic_virtio.c  | 17 ++++---
 drivers/misc/mic/card/mic_x100.c    |  4 +-
 drivers/misc/mic/host/mic_debugfs.c | 90 ++++++++++++++++++-------------------
 drivers/misc/mic/host/mic_fops.c    |  6 +--
 drivers/misc/mic/host/mic_intr.c    | 34 +++++++-------
 drivers/misc/mic/host/mic_smpt.c    | 14 +++---
 drivers/misc/mic/host/mic_sysfs.c   | 20 ++++-----
 drivers/misc/mic/host/mic_virtio.c  | 37 +++++++--------
 drivers/misc/mic/host/mic_x100.c    | 33 +++++++-------
 12 files changed, 158 insertions(+), 167 deletions(-)

diff --git a/Documentation/mic/mpssd/mpssd.c b/Documentation/mic/mpssd/mpssd.c
index 8064804cdac3..f9327a29ae4c 100644
--- a/Documentation/mic/mpssd/mpssd.c
+++ b/Documentation/mic/mpssd/mpssd.c
@@ -246,7 +246,7 @@ static int tun_alloc(struct mic_info *mic, char *dev)
 	if (*dev)
 		strncpy(ifr.ifr_name, dev, IFNAMSIZ);
 
-	err = ioctl(fd, TUNSETIFF, (void *) &ifr);
+	err = ioctl(fd, TUNSETIFF, (void *)&ifr);
 	if (err < 0) {
 		mpsslog("%s %s %d TUNSETIFF failed %s\n",
 			mic->name, __func__, __LINE__, strerror(errno));
@@ -363,7 +363,7 @@ static inline void verify_out_len(struct mic_info *mic,
 {
 	if (copy->out_len != sum_iovec_len(copy)) {
 		mpsslog("%s %s %d BUG copy->out_len 0x%x len 0x%x\n",
-				mic->name, __func__, __LINE__,
+			mic->name, __func__, __LINE__,
 				copy->out_len, sum_iovec_len(copy));
 		assert(copy->out_len == sum_iovec_len(copy));
 	}
@@ -372,7 +372,7 @@ static inline void verify_out_len(struct mic_info *mic,
 /* Display an iovec */
 static void
 disp_iovec(struct mic_info *mic, struct mic_copy_desc *copy,
-	const char *s, int line)
+	   const char *s, int line)
 {
 	int i;
 
@@ -401,7 +401,7 @@ static inline void txrx_prepare(int type, bool tx, struct mic_vring *vr,
 /* Central API which triggers the copies */
 static int
 mic_virtio_copy(struct mic_info *mic, int fd,
-	struct mic_vring *vr, struct mic_copy_desc *copy)
+		struct mic_vring *vr, struct mic_copy_desc *copy)
 {
 	int ret;
 
@@ -440,7 +440,7 @@ init_vr(struct mic_info *mic, int fd, int type,
 	vr0->info = vr0->va +
 		vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN);
 	vring_init(&vr0->vr,
-		MIC_VRING_ENTRIES, vr0->va, MIC_VIRTIO_RING_ALIGN);
+		   MIC_VRING_ENTRIES, vr0->va, MIC_VIRTIO_RING_ALIGN);
 	mpsslog("%s %s vr0 %p vr0->info %p vr_size 0x%x vring 0x%x ",
 		__func__, mic->name, vr0->va, vr0->info, vr_size,
 		vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN));
@@ -453,7 +453,7 @@ init_vr(struct mic_info *mic, int fd, int type,
 		vr1->info = vr1->va + vring_size(MIC_VRING_ENTRIES,
 			MIC_VIRTIO_RING_ALIGN);
 		vring_init(&vr1->vr,
-			MIC_VRING_ENTRIES, vr1->va, MIC_VIRTIO_RING_ALIGN);
+			   MIC_VRING_ENTRIES, vr1->va, MIC_VIRTIO_RING_ALIGN);
 		mpsslog("%s %s vr1 %p vr1->info %p vr_size 0x%x vring 0x%x ",
 			__func__, mic->name, vr1->va, vr1->info, vr_size,
 			vring_size(MIC_VRING_ENTRIES, MIC_VIRTIO_RING_ALIGN));
@@ -551,7 +551,7 @@ virtio_net(void *arg)
 	net_poll[NET_FD_TUN].events = POLLIN;
 
 	if (MAP_FAILED == init_vr(mic, mic->mic_net.virtio_net_fd,
-		VIRTIO_ID_NET, &tx_vr, &rx_vr,
+				  VIRTIO_ID_NET, &tx_vr, &rx_vr,
 		virtnet_dev_page.dd.num_vq)) {
 		mpsslog("%s init_vr failed %s\n",
 			mic->name, strerror(errno));
@@ -576,7 +576,7 @@ virtio_net(void *arg)
 		}
 		if (!(desc->status & VIRTIO_CONFIG_S_DRIVER_OK))
 			wait_for_card_driver(mic, mic->mic_net.virtio_net_fd,
-					VIRTIO_ID_NET);
+					     VIRTIO_ID_NET);
 		/*
 		 * Check if there is data to be read from TUN and write to
 		 * virtio net fd if there is.
@@ -587,7 +587,7 @@ virtio_net(void *arg)
 				copy.iov, copy.iovcnt);
 			if (len > 0) {
 				struct virtio_net_hdr *hdr
-					= (struct virtio_net_hdr *) vnet_hdr[0];
+					= (struct virtio_net_hdr *)vnet_hdr[0];
 
 				/* Disable checksums on the card since we are on
 				   a reliable PCIe link */
@@ -606,7 +606,7 @@ virtio_net(void *arg)
 #endif
 				spin_for_descriptors(mic, &tx_vr);
 				txrx_prepare(VIRTIO_ID_NET, 1, &tx_vr, &copy,
-					len);
+					     len);
 
 				err = mic_virtio_copy(mic,
 					mic->mic_net.virtio_net_fd, &tx_vr,
@@ -644,7 +644,7 @@ virtio_net(void *arg)
 				le16toh(rx_vr.vr.avail->idx)) {
 				copy.iov = iov1;
 				txrx_prepare(VIRTIO_ID_NET, 0, &rx_vr, &copy,
-					MAX_NET_PKT_SIZE
+					     MAX_NET_PKT_SIZE
 					+ sizeof(struct virtio_net_hdr));
 
 				err = mic_virtio_copy(mic,
@@ -669,7 +669,7 @@ virtio_net(void *arg)
 					verify_out_len(mic, &copy);
 #ifdef DEBUG
 					disp_iovec(mic, copy, __func__,
-						__LINE__);
+						   __LINE__);
 					mpsslog("%s %s %d ",
 						mic->name, __func__, __LINE__);
 					mpsslog("read from net 0x%lx\n",
@@ -686,7 +686,7 @@ virtio_net(void *arg)
 					} else {
 #ifdef DEBUG
 						disp_iovec(mic, &copy, __func__,
-							__LINE__);
+							   __LINE__);
 						mpsslog("%s %s %d ",
 							mic->name, __func__,
 							__LINE__);
@@ -750,13 +750,13 @@ virtio_console(void *arg)
 	err = grantpt(pty_fd);
 	if (err < 0) {
 		mpsslog("can't grant access: %s %s\n",
-				pts_name, strerror(errno));
+			pts_name, strerror(errno));
 		goto _close_pty;
 	}
 	err = unlockpt(pty_fd);
 	if (err < 0) {
 		mpsslog("can't unlock a pseudoterminal: %s %s\n",
-				pts_name, strerror(errno));
+			pts_name, strerror(errno));
 		goto _close_pty;
 	}
 	console_poll[MONITOR_FD].fd = pty_fd;
@@ -766,7 +766,7 @@ virtio_console(void *arg)
 	console_poll[VIRTIO_CONSOLE_FD].events = POLLIN;
 
 	if (MAP_FAILED == init_vr(mic, mic->mic_console.virtio_console_fd,
-		VIRTIO_ID_CONSOLE, &tx_vr, &rx_vr,
+				  VIRTIO_ID_CONSOLE, &tx_vr, &rx_vr,
 		virtcons_dev_page.dd.num_vq)) {
 		mpsslog("%s init_vr failed %s\n",
 			mic->name, strerror(errno));
@@ -787,7 +787,7 @@ virtio_console(void *arg)
 		}
 		if (!(desc->status & VIRTIO_CONFIG_S_DRIVER_OK))
 			wait_for_card_driver(mic,
-				mic->mic_console.virtio_console_fd,
+					     mic->mic_console.virtio_console_fd,
 				VIRTIO_ID_CONSOLE);
 
 		if (console_poll[MONITOR_FD].revents & POLLIN) {
@@ -802,7 +802,7 @@ virtio_console(void *arg)
 #endif
 				spin_for_descriptors(mic, &tx_vr);
 				txrx_prepare(VIRTIO_ID_CONSOLE, 1, &tx_vr,
-					&copy, len);
+					     &copy, len);
 
 				err = mic_virtio_copy(mic,
 					mic->mic_console.virtio_console_fd,
@@ -837,7 +837,7 @@ virtio_console(void *arg)
 				le16toh(rx_vr.vr.avail->idx)) {
 				copy.iov = iov1;
 				txrx_prepare(VIRTIO_ID_CONSOLE, 0, &rx_vr,
-					&copy, PAGE_SIZE);
+					     &copy, PAGE_SIZE);
 
 				err = mic_virtio_copy(mic,
 					mic->mic_console.virtio_console_fd,
@@ -848,7 +848,7 @@ virtio_console(void *arg)
 					verify_out_len(mic, &copy);
 #ifdef DEBUG
 					disp_iovec(mic, copy, __func__,
-						__LINE__);
+						   __LINE__);
 					mpsslog("%s %s %d ",
 						mic->name, __func__, __LINE__);
 					mpsslog("read from net 0x%lx\n",
@@ -865,7 +865,7 @@ virtio_console(void *arg)
 					} else {
 #ifdef DEBUG
 						disp_iovec(mic, copy, __func__,
-							__LINE__);
+							   __LINE__);
 						mpsslog("%s %s %d ",
 							mic->name, __func__,
 							__LINE__);
@@ -1033,7 +1033,8 @@ start_virtblk(struct mic_info *mic, struct mic_vring *vring)
 	}
 	add_virtio_device(mic, &virtblk_dev_page.dd);
 	if (MAP_FAILED == init_vr(mic, mic->mic_virtblk.virtio_block_fd,
-		VIRTIO_ID_BLOCK, vring, NULL, virtblk_dev_page.dd.num_vq)) {
+				  VIRTIO_ID_BLOCK, vring, NULL,
+				  virtblk_dev_page.dd.num_vq)) {
 		mpsslog("%s init_vr failed %s\n",
 			mic->name, strerror(errno));
 		return false;
@@ -1060,7 +1061,7 @@ header_error_check(struct vring_desc *desc)
 {
 	if (le32toh(desc->len) != sizeof(struct virtio_blk_outhdr)) {
 		mpsslog("%s() %d: length is not sizeof(virtio_blk_outhd)\n",
-				__func__, __LINE__);
+			__func__, __LINE__);
 		return -EIO;
 	}
 	if (!(le16toh(desc->flags) & VRING_DESC_F_NEXT)) {
@@ -1132,7 +1133,7 @@ write_status(int fd, __u8 *status)
 static void *
 virtio_block(void *arg)
 {
-	struct mic_info *mic = (struct mic_info *) arg;
+	struct mic_info *mic = (struct mic_info *)arg;
 	int ret;
 	struct pollfd block_poll;
 	struct mic_vring vring;
@@ -1219,8 +1220,8 @@ virtio_block(void *arg)
 				status = 0;
 				fos = mic->mic_virtblk.backend_addr +
 					(hdr.sector * SECTOR_SIZE);
-				buffer_desc_idx = desc_idx =
-					next_desc(desc);
+				buffer_desc_idx = next_desc(desc);
+				desc_idx = buffer_desc_idx;
 				for (desc = &vring.vr.desc[buffer_desc_idx];
 				     desc->flags & VRING_DESC_F_NEXT;
 				     desc_idx = next_desc(desc),
@@ -1255,7 +1256,7 @@ virtio_block(void *arg)
 						iovec,
 						piov - iovec);
 					if (ret < 0 &&
-						status != 0)
+					    status != 0)
 						status = ret;
 				}
 				/* write status and update used pointer */
@@ -1391,7 +1392,7 @@ mic_config(void *arg)
 	char value[4096];
 
 	snprintf(pathname, PATH_MAX - 1, "%s/%s/%s",
-		MICSYSFSDIR, mic->name, "state");
+		 MICSYSFSDIR, mic->name, "state");
 
 	fd = open(pathname, O_RDONLY);
 	if (fd < 0) {
@@ -1560,22 +1561,22 @@ init_mic(struct mic_info *mic)
 			virtio_console, mic);
 		if (err)
 			mpsslog("%s virtcons pthread_create failed %s\n",
-			mic->name, strerror(err));
+				mic->name, strerror(err));
 		err = pthread_create(&mic->mic_net.net_thread, NULL,
 			virtio_net, mic);
 		if (err)
 			mpsslog("%s virtnet pthread_create failed %s\n",
-			mic->name, strerror(err));
+				mic->name, strerror(err));
 		err = pthread_create(&mic->mic_virtblk.block_thread, NULL,
 			virtio_block, mic);
 		if (err)
 			mpsslog("%s virtblk pthread_create failed %s\n",
-			mic->name, strerror(err));
+				mic->name, strerror(err));
 		sigemptyset(&act.sa_mask);
 		err = sigaction(SIGUSR1, &act, NULL);
 		if (err)
 			mpsslog("%s sigaction SIGUSR1 failed %s\n",
-			mic->name, strerror(errno));
+				mic->name, strerror(errno));
 		while (1)
 			sleep(60);
 	case -1:
diff --git a/Documentation/mic/mpssd/sysfs.c b/Documentation/mic/mpssd/sysfs.c
index 11de72b63386..8dd326936083 100644
--- a/Documentation/mic/mpssd/sysfs.c
+++ b/Documentation/mic/mpssd/sysfs.c
@@ -35,7 +35,7 @@ readsysfs(char *dir, char *entry)
 		snprintf(filename, PATH_MAX, "%s/%s", MICSYSFSDIR, entry);
 	else
 		snprintf(filename, PATH_MAX,
-			"%s/%s/%s", MICSYSFSDIR, dir, entry);
+			 "%s/%s/%s", MICSYSFSDIR, dir, entry);
 
 	fd = open(filename, O_RDONLY);
 	if (fd < 0) {
@@ -75,7 +75,7 @@ setsysfs(char *dir, char *entry, char *value)
 		snprintf(filename, PATH_MAX, "%s/%s", MICSYSFSDIR, entry);
 	else
 		snprintf(filename, PATH_MAX, "%s/%s/%s",
-			MICSYSFSDIR, dir, entry);
+			 MICSYSFSDIR, dir, entry);
 
 	oldvalue = readsysfs(dir, entry);
 
diff --git a/drivers/misc/mic/card/mic_device.c b/drivers/misc/mic/card/mic_device.c
index 175d11425636..d0980ff96833 100644
--- a/drivers/misc/mic/card/mic_device.c
+++ b/drivers/misc/mic/card/mic_device.c
@@ -167,7 +167,6 @@ struct mic_irq *mic_request_card_irq(irqreturn_t (*func)(int irq, void *data),
 	return (struct mic_irq *)cookie;
 err:
 	return ERR_PTR(rc);
-
 }
 
 /**
diff --git a/drivers/misc/mic/card/mic_virtio.c b/drivers/misc/mic/card/mic_virtio.c
index 7420c33d8f65..914cc9b2caad 100644
--- a/drivers/misc/mic/card/mic_virtio.c
+++ b/drivers/misc/mic/card/mic_virtio.c
@@ -103,7 +103,7 @@ static void mic_finalize_features(struct virtio_device *vdev)
 	for (i = 0; i < bits; i++) {
 		if (test_bit(i, vdev->features))
 			iowrite8(ioread8(&out_features[i / 8]) | (1 << (i % 8)),
-				&out_features[i / 8]);
+				 &out_features[i / 8]);
 	}
 }
 
@@ -197,10 +197,9 @@ static void mic_notify(struct virtqueue *vq)
 static void mic_del_vq(struct virtqueue *vq, int n)
 {
 	struct mic_vdev *mvdev = to_micvdev(vq->vdev);
-	struct vring *vr = (struct vring *) (vq + 1);
+	struct vring *vr = (struct vring *)(vq + 1);
 
-	free_pages((unsigned long) vr->used,
-		get_order(mvdev->used_size[n]));
+	free_pages((unsigned long) vr->used, get_order(mvdev->used_size[n]));
 	vring_del_virtqueue(vq);
 	mic_card_unmap(mvdev->mdev, mvdev->vr[n]);
 	mvdev->vr[n] = NULL;
@@ -274,8 +273,8 @@ static struct virtqueue *mic_find_vq(struct virtio_device *vdev,
 	/* Allocate and reassign used ring now */
 	mvdev->used_size[index] = PAGE_ALIGN(sizeof(__u16) * 3 +
 			sizeof(struct vring_used_elem) * config.num);
-	used = (void *) __get_free_pages(GFP_KERNEL | __GFP_ZERO,
-				get_order(mvdev->used_size[index]));
+	used = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO,
+					get_order(mvdev->used_size[index]));
 	if (!used) {
 		err = -ENOMEM;
 		dev_err(mic_dev(mvdev), "%s %d err %d\n",
@@ -291,7 +290,7 @@ static struct virtqueue *mic_find_vq(struct virtio_device *vdev,
 	 * vring_new_virtqueue() would ensure that
 	 *  (&vq->vring == (struct vring *) (&vq->vq + 1));
 	 */
-	vr = (struct vring *) (vq + 1);
+	vr = (struct vring *)(vq + 1);
 	vr->used = used;
 
 	vq->priv = mvdev;
@@ -544,7 +543,7 @@ static void mic_scan_devices(struct mic_driver *mdrv, bool remove)
 		if (dev) {
 			if (remove)
 				iowrite8(MIC_VIRTIO_PARAM_DEV_REMOVE,
-					&dc->config_change);
+					 &dc->config_change);
 			put_device(dev);
 			mic_handle_config_change(d, i, mdrv);
 			ret = mic_remove_device(d, i, mdrv);
@@ -559,7 +558,7 @@ static void mic_scan_devices(struct mic_driver *mdrv, bool remove)
 
 		/* new device */
 		dev_dbg(mdrv->dev, "%s %d Adding new virtio device %p\n",
-				__func__, __LINE__, d);
+			__func__, __LINE__, d);
 		if (!remove)
 			mic_add_device(d, i, mdrv);
 	}
diff --git a/drivers/misc/mic/card/mic_x100.c b/drivers/misc/mic/card/mic_x100.c
index f491c9163bb2..2868945c9a4d 100644
--- a/drivers/misc/mic/card/mic_x100.c
+++ b/drivers/misc/mic/card/mic_x100.c
@@ -66,8 +66,8 @@ void mic_send_intr(struct mic_device *mdev, int doorbell)
 	/* Ensure that the interrupt is ordered w.r.t previous stores. */
 	wmb();
 	mic_mmio_write(mw, MIC_X100_SBOX_SDBIC0_DBREQ_BIT,
-		MIC_X100_SBOX_BASE_ADDRESS +
-		(MIC_X100_SBOX_SDBIC0 + (4 * doorbell)));
+		       MIC_X100_SBOX_BASE_ADDRESS +
+		       (MIC_X100_SBOX_SDBIC0 + (4 * doorbell)));
 }
 
 /**
diff --git a/drivers/misc/mic/host/mic_debugfs.c b/drivers/misc/mic/host/mic_debugfs.c
index 98a61b4319f4..028ba5d6fd1c 100644
--- a/drivers/misc/mic/host/mic_debugfs.c
+++ b/drivers/misc/mic/host/mic_debugfs.c
@@ -103,7 +103,7 @@ static int mic_smpt_show(struct seq_file *s, void *pos)
 	unsigned long flags;
 
 	seq_printf(s, "MIC %-2d |%-10s| %-14s %-10s\n",
-		mdev->id, "SMPT entry", "SW DMA addr", "RefCount");
+		   mdev->id, "SMPT entry", "SW DMA addr", "RefCount");
 	seq_puts(s, "====================================================\n");
 
 	if (mdev->smpt) {
@@ -111,8 +111,8 @@ static int mic_smpt_show(struct seq_file *s, void *pos)
 		spin_lock_irqsave(&smpt_info->smpt_lock, flags);
 		for (i = 0; i < smpt_info->info.num_reg; i++) {
 			seq_printf(s, "%9s|%-10d| %-#14llx %-10lld\n",
-				" ",  i, smpt_info->entry[i].dma_addr,
-				smpt_info->entry[i].ref_count);
+				   " ",  i, smpt_info->entry[i].dma_addr,
+				   smpt_info->entry[i].ref_count);
 		}
 		spin_unlock_irqrestore(&smpt_info->smpt_lock, flags);
 	}
@@ -203,17 +203,17 @@ static int mic_dp_show(struct seq_file *s, void *pos)
 	int i, j;
 
 	seq_printf(s, "Bootparam: magic 0x%x\n",
-		bootparam->magic);
+		   bootparam->magic);
 	seq_printf(s, "Bootparam: h2c_shutdown_db %d\n",
-		bootparam->h2c_shutdown_db);
+		   bootparam->h2c_shutdown_db);
 	seq_printf(s, "Bootparam: h2c_config_db %d\n",
-		bootparam->h2c_config_db);
+		   bootparam->h2c_config_db);
 	seq_printf(s, "Bootparam: c2h_shutdown_db %d\n",
-		bootparam->c2h_shutdown_db);
+		   bootparam->c2h_shutdown_db);
 	seq_printf(s, "Bootparam: shutdown_status %d\n",
-		bootparam->shutdown_status);
+		   bootparam->shutdown_status);
 	seq_printf(s, "Bootparam: shutdown_card %d\n",
-		bootparam->shutdown_card);
+		   bootparam->shutdown_card);
 
 	for (i = sizeof(*bootparam); i < MIC_DP_SIZE;
 	     i += mic_total_desc_size(d)) {
@@ -239,10 +239,10 @@ static int mic_dp_show(struct seq_file *s, void *pos)
 			seq_printf(s, "address 0x%llx ", vqconfig->address);
 			seq_printf(s, "num %d ", vqconfig->num);
 			seq_printf(s, "used address 0x%llx\n",
-				vqconfig->used_address);
+				   vqconfig->used_address);
 		}
 
-		features = (__u32 *) mic_vq_features(d);
+		features = (__u32 *)mic_vq_features(d);
 		seq_printf(s, "Features: Host 0x%x ", features[0]);
 		seq_printf(s, "Guest 0x%x\n", features[1]);
 
@@ -256,7 +256,7 @@ static int mic_dp_show(struct seq_file *s, void *pos)
 		seq_printf(s, "Guest Ack %d ", dc->guest_ack);
 		seq_printf(s, "Host ack %d\n", dc->host_ack);
 		seq_printf(s, "Used address updated %d ",
-			dc->used_address_updated);
+			   dc->used_address_updated);
 		seq_printf(s, "Vdev 0x%llx\n", dc->vdev);
 		seq_printf(s, "c2h doorbell %d ", dc->c2h_vdev_db);
 		seq_printf(s, "h2c doorbell %d\n", dc->h2c_vdev_db);
@@ -294,10 +294,10 @@ static int mic_vdev_info_show(struct seq_file *s, void *unused)
 	list_for_each_safe(pos, tmp, &mdev->vdev_list) {
 		mvdev = list_entry(pos, struct mic_vdev, list);
 		seq_printf(s, "VDEV type %d state %s in %ld out %ld\n",
-			mvdev->virtio_id,
-			mic_vdevup(mvdev) ? "UP" : "DOWN",
-			mvdev->in_bytes,
-			mvdev->out_bytes);
+			   mvdev->virtio_id,
+			   mic_vdevup(mvdev) ? "UP" : "DOWN",
+			   mvdev->in_bytes,
+			   mvdev->out_bytes);
 		for (i = 0; i < MIC_MAX_VRINGS; i++) {
 			struct vring_desc *desc;
 			struct vring_avail *avail;
@@ -309,38 +309,38 @@ static int mic_vdev_info_show(struct seq_file *s, void *unused)
 				continue;
 			desc = vrh->vring.desc;
 			seq_printf(s, "vring i %d avail_idx %d",
-				i, mvr->vring.info->avail_idx & (num - 1));
+				   i, mvr->vring.info->avail_idx & (num - 1));
 			seq_printf(s, " vring i %d avail_idx %d\n",
-				i, mvr->vring.info->avail_idx);
+				   i, mvr->vring.info->avail_idx);
 			seq_printf(s, "vrh i %d weak_barriers %d",
-				i, vrh->weak_barriers);
+				   i, vrh->weak_barriers);
 			seq_printf(s, " last_avail_idx %d last_used_idx %d",
-				vrh->last_avail_idx, vrh->last_used_idx);
+				   vrh->last_avail_idx, vrh->last_used_idx);
 			seq_printf(s, " completed %d\n", vrh->completed);
 			for (j = 0; j < num; j++) {
 				seq_printf(s, "desc[%d] addr 0x%llx len %d",
-					j, desc->addr, desc->len);
+					   j, desc->addr, desc->len);
 				seq_printf(s, " flags 0x%x next %d\n",
-					desc->flags,
-					desc->next);
+					   desc->flags, desc->next);
 				desc++;
 			}
 			avail = vrh->vring.avail;
 			seq_printf(s, "avail flags 0x%x idx %d\n",
-				avail->flags, avail->idx & (num - 1));
+				   avail->flags, avail->idx & (num - 1));
 			seq_printf(s, "avail flags 0x%x idx %d\n",
-				avail->flags, avail->idx);
+				   avail->flags, avail->idx);
 			for (j = 0; j < num; j++)
 				seq_printf(s, "avail ring[%d] %d\n",
-					j, avail->ring[j]);
+					   j, avail->ring[j]);
 			used = vrh->vring.used;
 			seq_printf(s, "used flags 0x%x idx %d\n",
-				used->flags, used->idx & (num - 1));
+				   used->flags, used->idx & (num - 1));
 			seq_printf(s, "used flags 0x%x idx %d\n",
-				used->flags, used->idx);
+				   used->flags, used->idx);
 			for (j = 0; j < num; j++)
 				seq_printf(s, "used ring[%d] id %d len %d\n",
-					j, used->ring[j].id, used->ring[j].len);
+					   j, used->ring[j].id,
+					   used->ring[j].len);
 		}
 	}
 	mutex_unlock(&mdev->mic_mutex);
@@ -389,7 +389,7 @@ static int mic_msi_irq_info_show(struct seq_file *s, void *pos)
 			reg = mdev->intr_ops->read_msi_to_src_map(mdev, entry);
 
 			seq_printf(s, "%s %-10d %s %-10d MXAR[%d]: %08X\n",
-				"IRQ:", vector, "Entry:", entry, i, reg);
+				   "IRQ:", vector, "Entry:", entry, i, reg);
 
 			seq_printf(s, "%-10s", "offset:");
 			for (j = (MIC_NUM_OFFSETS - 1); j >= 0; j--)
@@ -400,8 +400,8 @@ static int mic_msi_irq_info_show(struct seq_file *s, void *pos)
 			seq_printf(s, "%-10s", "count:");
 			for (j = (MIC_NUM_OFFSETS - 1); j >= 0; j--)
 				seq_printf(s, "%4d ",
-				(mdev->irq_info.mic_msi_map[i] & BIT(j)) ?
-					1 : 0);
+					   (mdev->irq_info.mic_msi_map[i] &
+					   BIT(j)) ? 1 : 0);
 			seq_puts(s, "\n\n");
 		}
 	} else {
@@ -409,7 +409,6 @@ static int mic_msi_irq_info_show(struct seq_file *s, void *pos)
 	}
 
 	return 0;
-
 }
 
 static int mic_msi_irq_info_debug_open(struct inode *inode, struct file *file)
@@ -443,26 +442,23 @@ void mic_create_debug_dir(struct mic_device *mdev)
 	if (!mdev->dbg_dir)
 		return;
 
-	debugfs_create_file("log_buf", 0444, mdev->dbg_dir,
-		mdev, &log_buf_ops);
+	debugfs_create_file("log_buf", 0444, mdev->dbg_dir, mdev, &log_buf_ops);
 
-	debugfs_create_file("smpt", 0444, mdev->dbg_dir,
-		mdev, &smpt_file_ops);
+	debugfs_create_file("smpt", 0444, mdev->dbg_dir, mdev, &smpt_file_ops);
 
-	debugfs_create_file("soft_reset", 0444, mdev->dbg_dir,
-		mdev, &soft_reset_ops);
+	debugfs_create_file("soft_reset", 0444, mdev->dbg_dir, mdev,
+			    &soft_reset_ops);
 
-	debugfs_create_file("post_code", 0444, mdev->dbg_dir,
-		mdev, &post_code_ops);
+	debugfs_create_file("post_code", 0444, mdev->dbg_dir, mdev,
+			    &post_code_ops);
 
-	debugfs_create_file("dp", 0444, mdev->dbg_dir,
-		mdev, &dp_ops);
+	debugfs_create_file("dp", 0444, mdev->dbg_dir, mdev, &dp_ops);
 
-	debugfs_create_file("vdev_info", 0444, mdev->dbg_dir,
-		mdev, &vdev_info_ops);
+	debugfs_create_file("vdev_info", 0444, mdev->dbg_dir, mdev,
+			    &vdev_info_ops);
 
-	debugfs_create_file("msi_irq_info", 0444, mdev->dbg_dir,
-		mdev, &msi_irq_info_ops);
+	debugfs_create_file("msi_irq_info", 0444, mdev->dbg_dir, mdev,
+			    &msi_irq_info_ops);
 }
 
 /**
diff --git a/drivers/misc/mic/host/mic_fops.c b/drivers/misc/mic/host/mic_fops.c
index e699c80a8c0a..8dc6ff16845a 100644
--- a/drivers/misc/mic/host/mic_fops.c
+++ b/drivers/misc/mic/host/mic_fops.c
@@ -140,9 +140,9 @@ unsigned int mic_poll(struct file *f, poll_table *wait)
 
 	poll_wait(f, &mvdev->waitq, wait);
 
-	if (mic_vdev_inited(mvdev))
+	if (mic_vdev_inited(mvdev)) {
 		mask = POLLERR;
-	else if (mvdev->poll_wake) {
+	} else if (mvdev->poll_wake) {
 		mvdev->poll_wake = 0;
 		mask = POLLIN | POLLOUT;
 	}
@@ -152,7 +152,7 @@ unsigned int mic_poll(struct file *f, poll_table *wait)
 
 static inline int
 mic_query_offset(struct mic_vdev *mvdev, unsigned long offset,
-	unsigned long *size, unsigned long *pa)
+		 unsigned long *size, unsigned long *pa)
 {
 	struct mic_device *mdev = mvdev->mdev;
 	unsigned long start = MIC_DP_SIZE;
diff --git a/drivers/misc/mic/host/mic_intr.c b/drivers/misc/mic/host/mic_intr.c
index 71a7521cf1a4..f9c29bc918bc 100644
--- a/drivers/misc/mic/host/mic_intr.c
+++ b/drivers/misc/mic/host/mic_intr.c
@@ -71,8 +71,8 @@ static irqreturn_t mic_interrupt(int irq, void *dev)
 
 /* Return the interrupt offset from the index. Index is 0 based. */
 static u16 mic_map_src_to_offset(struct mic_device *mdev,
-		int intr_src, enum mic_intr_type type) {
-
+		int intr_src, enum mic_intr_type type)
+{
 	if (type >= MIC_NUM_INTR_TYPES)
 		return MIC_NUM_OFFSETS;
 	if (intr_src >= mdev->intr_info->intr_len[type])
@@ -112,7 +112,7 @@ static struct mic_intr_cb *mic_register_intr_callback(struct mic_device *mdev,
 	struct mic_intr_cb *intr_cb;
 	unsigned long flags;
 	int rc;
-	intr_cb = kmalloc(sizeof(struct mic_intr_cb), GFP_KERNEL);
+	intr_cb = kmalloc(sizeof(*intr_cb), GFP_KERNEL);
 
 	if (!intr_cb)
 		return ERR_PTR(-ENOMEM);
@@ -159,7 +159,7 @@ static u8 mic_unregister_intr_callback(struct mic_device *mdev, u32 idx)
 			if (intr_cb->cb_id == idx) {
 				list_del(pos);
 				ida_simple_remove(&mdev->irq_info.cb_ida,
-					intr_cb->cb_id);
+						  intr_cb->cb_id);
 				kfree(intr_cb);
 				spin_unlock_irqrestore(
 					&mdev->irq_info.mic_intr_lock, flags);
@@ -182,9 +182,10 @@ static u8 mic_unregister_intr_callback(struct mic_device *mdev, u32 idx)
 static int mic_setup_msix(struct mic_device *mdev, struct pci_dev *pdev)
 {
 	int rc, i;
+	int entry_size = sizeof(*mdev->irq_info.msix_entries);
 
-	mdev->irq_info.msix_entries = kmalloc(sizeof(struct msix_entry) *
-			MIC_MIN_MSIX, GFP_KERNEL);
+	mdev->irq_info.msix_entries = kmalloc_array(MIC_MIN_MSIX,
+						    entry_size, GFP_KERNEL);
 	if (!mdev->irq_info.msix_entries) {
 		rc = -ENOMEM;
 		goto err_nomem1;
@@ -231,8 +232,9 @@ static int mic_setup_callbacks(struct mic_device *mdev)
 {
 	int i;
 
-	mdev->irq_info.cb_list = kmalloc(sizeof(struct list_head) *
-		MIC_NUM_OFFSETS, GFP_KERNEL);
+	mdev->irq_info.cb_list = kmalloc_array(MIC_NUM_OFFSETS,
+					       sizeof(*mdev->irq_info.cb_list),
+					       GFP_KERNEL);
 	if (!mdev->irq_info.cb_list)
 		return -ENOMEM;
 
@@ -261,7 +263,7 @@ static void mic_release_callbacks(struct mic_device *mdev)
 
 		if (list_empty(&mdev->irq_info.cb_list[i])) {
 			spin_unlock_irqrestore(&mdev->irq_info.mic_intr_lock,
-				flags);
+					       flags);
 			break;
 		}
 
@@ -269,7 +271,7 @@ static void mic_release_callbacks(struct mic_device *mdev)
 			intr_cb = list_entry(pos, struct mic_intr_cb, list);
 			list_del(pos);
 			ida_simple_remove(&mdev->irq_info.cb_ida,
-				intr_cb->cb_id);
+					  intr_cb->cb_id);
 			kfree(intr_cb);
 		}
 		spin_unlock_irqrestore(&mdev->irq_info.mic_intr_lock, flags);
@@ -427,8 +429,8 @@ struct mic_irq *mic_request_irq(struct mic_device *mdev,
 	offset = mic_map_src_to_offset(mdev, intr_src, type);
 	if (offset >= MIC_NUM_OFFSETS) {
 		dev_err(mdev->sdev->parent,
-				"Error mapping index %d to a valid source id.\n",
-				intr_src);
+			"Error mapping index %d to a valid source id.\n",
+			intr_src);
 		rc = -EINVAL;
 		goto err;
 	}
@@ -437,7 +439,7 @@ struct mic_irq *mic_request_irq(struct mic_device *mdev,
 		msix = mic_get_available_vector(mdev);
 		if (!msix) {
 			dev_err(mdev->sdev->parent,
-			"No MSIx vectors available for use.\n");
+				"No MSIx vectors available for use.\n");
 			rc = -ENOSPC;
 			goto err;
 		}
@@ -460,7 +462,7 @@ struct mic_irq *mic_request_irq(struct mic_device *mdev,
 				offset, func, data);
 		if (IS_ERR(intr_cb)) {
 			dev_err(mdev->sdev->parent,
-			"No available callback entries for use\n");
+				"No available callback entries for use\n");
 			rc = PTR_ERR(intr_cb);
 			goto err;
 		}
@@ -506,7 +508,7 @@ void mic_free_irq(struct mic_device *mdev,
 	if (mdev->irq_info.num_vectors > 1) {
 		if (entry >= mdev->irq_info.num_vectors) {
 			dev_warn(mdev->sdev->parent,
-				"entry %d should be < num_irq %d\n",
+				 "entry %d should be < num_irq %d\n",
 				entry, mdev->irq_info.num_vectors);
 			return;
 		}
@@ -581,7 +583,7 @@ void mic_free_interrupts(struct mic_device *mdev, struct pci_dev *pdev)
 		for (i = 0; i < mdev->irq_info.num_vectors; i++) {
 			if (mdev->irq_info.mic_msi_map[i])
 				dev_warn(&pdev->dev, "irq %d may still be in use.\n",
-					mdev->irq_info.msix_entries[i].vector);
+					 mdev->irq_info.msix_entries[i].vector);
 		}
 		kfree(mdev->irq_info.mic_msi_map);
 		kfree(mdev->irq_info.msix_entries);
diff --git a/drivers/misc/mic/host/mic_smpt.c b/drivers/misc/mic/host/mic_smpt.c
index 003d02b212be..fae474c4899e 100644
--- a/drivers/misc/mic/host/mic_smpt.c
+++ b/drivers/misc/mic/host/mic_smpt.c
@@ -84,7 +84,7 @@ static void mic_add_smpt_entry(int spt, s64 *ref, u64 addr,
 	for (i = spt; i < spt + entries; i++,
 		addr += smpt_info->info.page_size) {
 		if (!smpt_info->entry[i].ref_count &&
-			(smpt_info->entry[i].dma_addr != addr)) {
+		    (smpt_info->entry[i].dma_addr != addr)) {
 			mdev->smpt_ops->set(mdev, addr, i);
 			smpt_info->entry[i].dma_addr = addr;
 		}
@@ -183,7 +183,7 @@ mic_to_dma_addr(struct mic_device *mdev, dma_addr_t mic_addr)
 
 	if (!mic_is_system_addr(mdev, mic_addr)) {
 		dev_err(mdev->sdev->parent,
-		"mic_addr is invalid. mic_addr = 0x%llx\n", mic_addr);
+			"mic_addr is invalid. mic_addr = 0x%llx\n", mic_addr);
 		return -EINVAL;
 	}
 	spt = mic_sys_addr_to_smpt(mdev, mic_addr);
@@ -286,7 +286,7 @@ void mic_unmap(struct mic_device *mdev, dma_addr_t mic_addr, size_t size)
 		smpt_info->entry[i].ref_count -= ref[i - spt];
 		if (smpt_info->entry[i].ref_count < 0)
 			dev_warn(mdev->sdev->parent,
-				"ref count for entry %d is negative\n", i);
+				 "ref count for entry %d is negative\n", i);
 	}
 	spin_unlock_irqrestore(&smpt_info->smpt_lock, flags);
 	kfree(ref);
@@ -320,7 +320,7 @@ dma_addr_t mic_map_single(struct mic_device *mdev, void *va, size_t size)
 				"mic_map failed dma_addr 0x%llx size 0x%lx\n",
 				dma_addr, size);
 			pci_unmap_single(pdev, dma_addr,
-				size, PCI_DMA_BIDIRECTIONAL);
+					 size, PCI_DMA_BIDIRECTIONAL);
 		}
 	}
 	return mic_addr;
@@ -366,8 +366,8 @@ int mic_smpt_init(struct mic_device *mdev)
 
 	smpt_info = mdev->smpt;
 	mdev->smpt_ops->init(mdev);
-	smpt_info->entry = kmalloc(sizeof(struct mic_smpt)
-			* smpt_info->info.num_reg, GFP_KERNEL);
+	smpt_info->entry = kmalloc_array(smpt_info->info.num_reg,
+					 sizeof(*smpt_info->entry), GFP_KERNEL);
 	if (!smpt_info->entry) {
 		err = -ENOMEM;
 		goto free_smpt;
@@ -412,7 +412,7 @@ void mic_smpt_uninit(struct mic_device *mdev)
 			smpt_info->entry[i].ref_count);
 		if (smpt_info->entry[i].ref_count)
 			dev_warn(mdev->sdev->parent,
-			"ref count for entry %d is not zero\n", i);
+				 "ref count for entry %d is not zero\n", i);
 	}
 	kfree(smpt_info->entry);
 	kfree(smpt_info);
diff --git a/drivers/misc/mic/host/mic_sysfs.c b/drivers/misc/mic/host/mic_sysfs.c
index 029a4f31bee7..75746adfb155 100644
--- a/drivers/misc/mic/host/mic_sysfs.c
+++ b/drivers/misc/mic/host/mic_sysfs.c
@@ -130,7 +130,7 @@ state_show(struct device *dev, struct device_attribute *attr, char *buf)
 
 static ssize_t
 state_store(struct device *dev, struct device_attribute *attr,
-	const char *buf, size_t count)
+	    const char *buf, size_t count)
 {
 	int rc = 0;
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
@@ -163,7 +163,7 @@ done:
 static DEVICE_ATTR_RW(state);
 
 static ssize_t shutdown_status_show(struct device *dev,
-	struct device_attribute *attr, char *buf)
+				    struct device_attribute *attr, char *buf)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
 
@@ -193,7 +193,7 @@ cmdline_show(struct device *dev, struct device_attribute *attr, char *buf)
 
 static ssize_t
 cmdline_store(struct device *dev, struct device_attribute *attr,
-	const char *buf, size_t count)
+	      const char *buf, size_t count)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
 
@@ -239,7 +239,7 @@ firmware_show(struct device *dev, struct device_attribute *attr, char *buf)
 
 static ssize_t
 firmware_store(struct device *dev, struct device_attribute *attr,
-	const char *buf, size_t count)
+	       const char *buf, size_t count)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
 
@@ -284,7 +284,7 @@ ramdisk_show(struct device *dev, struct device_attribute *attr, char *buf)
 
 static ssize_t
 ramdisk_store(struct device *dev, struct device_attribute *attr,
-	const char *buf, size_t count)
+	      const char *buf, size_t count)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
 
@@ -330,7 +330,7 @@ bootmode_show(struct device *dev, struct device_attribute *attr, char *buf)
 
 static ssize_t
 bootmode_store(struct device *dev, struct device_attribute *attr,
-	const char *buf, size_t count)
+	       const char *buf, size_t count)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
 
@@ -363,7 +363,7 @@ static DEVICE_ATTR_RW(bootmode);
 
 static ssize_t
 log_buf_addr_show(struct device *dev, struct device_attribute *attr,
-	char *buf)
+		  char *buf)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
 
@@ -375,7 +375,7 @@ log_buf_addr_show(struct device *dev, struct device_attribute *attr,
 
 static ssize_t
 log_buf_addr_store(struct device *dev, struct device_attribute *attr,
-	const char *buf, size_t count)
+		   const char *buf, size_t count)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
 	int ret;
@@ -397,7 +397,7 @@ static DEVICE_ATTR_RW(log_buf_addr);
 
 static ssize_t
 log_buf_len_show(struct device *dev, struct device_attribute *attr,
-	char *buf)
+		 char *buf)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
 
@@ -409,7 +409,7 @@ log_buf_len_show(struct device *dev, struct device_attribute *attr,
 
 static ssize_t
 log_buf_len_store(struct device *dev, struct device_attribute *attr,
-	const char *buf, size_t count)
+		  const char *buf, size_t count)
 {
 	struct mic_device *mdev = dev_get_drvdata(dev->parent);
 	int ret;
diff --git a/drivers/misc/mic/host/mic_virtio.c b/drivers/misc/mic/host/mic_virtio.c
index 9e0456fb1ea8..0c883cd4f1d1 100644
--- a/drivers/misc/mic/host/mic_virtio.c
+++ b/drivers/misc/mic/host/mic_virtio.c
@@ -195,7 +195,7 @@ static int _mic_virtio_copy(struct mic_vdev *mvdev,
 			MIC_VRINGH_READ, &out_len);
 		if (ret) {
 			dev_err(mic_dev(mvdev), "%s %d err %d\n",
-					__func__, __LINE__, ret);
+				__func__, __LINE__, ret);
 			break;
 		}
 		len -= out_len;
@@ -206,7 +206,7 @@ static int _mic_virtio_copy(struct mic_vdev *mvdev,
 			!MIC_VRINGH_READ, &out_len);
 		if (ret) {
 			dev_err(mic_dev(mvdev), "%s %d err %d\n",
-					__func__, __LINE__, ret);
+				__func__, __LINE__, ret);
 			break;
 		}
 		len -= out_len;
@@ -225,8 +225,7 @@ static int _mic_virtio_copy(struct mic_vdev *mvdev,
 	 * Update the used ring if a descriptor was available and some data was
 	 * copied in/out and the user asked for a used ring update.
 	 */
-	if (*head != USHRT_MAX && copy->out_len &&
-		copy->update_used) {
+	if (*head != USHRT_MAX && copy->out_len && copy->update_used) {
 		u32 total = 0;
 
 		/* Determine the total data consumed */
@@ -367,7 +366,6 @@ void mic_bh_handler(struct work_struct *work)
 
 static irqreturn_t mic_virtio_intr_handler(int irq, void *data)
 {
-
 	struct mic_vdev *mvdev = data;
 	struct mic_device *mdev = mvdev->mdev;
 
@@ -394,7 +392,7 @@ int mic_virtio_config_change(struct mic_vdev *mvdev,
 	}
 
 	if (copy_from_user(mic_vq_configspace(mvdev->dd),
-				argp, mvdev->dd->config_len)) {
+			   argp, mvdev->dd->config_len)) {
 		dev_err(mic_dev(mvdev), "%s %d err %d\n",
 			__func__, __LINE__, -EFAULT);
 		ret = -EFAULT;
@@ -438,8 +436,8 @@ static int mic_copy_dp_entry(struct mic_vdev *mvdev,
 		return -EFAULT;
 	}
 
-	if (mic_aligned_desc_size(&dd) > MIC_MAX_DESC_BLK_SIZE
-		|| dd.num_vq > MIC_MAX_VRINGS) {
+	if (mic_aligned_desc_size(&dd) > MIC_MAX_DESC_BLK_SIZE ||
+	    dd.num_vq > MIC_MAX_VRINGS) {
 		dev_err(mic_dev(mvdev), "%s %d err %d\n",
 			__func__, __LINE__, -EINVAL);
 		return -EINVAL;
@@ -503,7 +501,7 @@ static void mic_init_device_ctrl(struct mic_vdev *mvdev,
 {
 	struct mic_device_ctrl *dc;
 
-	dc = mvdev->dc = (void *)devpage + mic_aligned_desc_size(devpage);
+	dc = (void *)devpage + mic_aligned_desc_size(devpage);
 
 	dc->config_change = 0;
 	dc->guest_ack = 0;
@@ -512,6 +510,7 @@ static void mic_init_device_ctrl(struct mic_vdev *mvdev,
 	dc->used_address_updated = 0;
 	dc->c2h_vdev_db = -1;
 	dc->h2c_vdev_db = -1;
+	mvdev->dc = dc;
 }
 
 int mic_virtio_add_device(struct mic_vdev *mvdev,
@@ -551,7 +550,7 @@ int mic_virtio_add_device(struct mic_vdev *mvdev,
 			sizeof(struct _mic_vring_info));
 		vr->va = (void *)
 			__get_free_pages(GFP_KERNEL | __GFP_ZERO,
-			get_order(vr_size));
+					 get_order(vr_size));
 		if (!vr->va) {
 			ret = -ENOMEM;
 			dev_err(mic_dev(mvdev), "%s %d err %d\n",
@@ -564,8 +563,7 @@ int mic_virtio_add_device(struct mic_vdev *mvdev,
 		vqconfig[i].address = mic_map_single(mdev,
 			vr->va, vr_size);
 		if (mic_map_error(vqconfig[i].address)) {
-			free_pages((unsigned long)vr->va,
-				get_order(vr_size));
+			free_pages((unsigned long)vr->va, get_order(vr_size));
 			ret = -ENOMEM;
 			dev_err(mic_dev(mvdev), "%s %d err %d\n",
 				__func__, __LINE__, ret);
@@ -573,8 +571,7 @@ int mic_virtio_add_device(struct mic_vdev *mvdev,
 		}
 		vqconfig[i].address = cpu_to_le64(vqconfig[i].address);
 
-		vring_init(&vr->vr, num,
-			vr->va, MIC_VIRTIO_RING_ALIGN);
+		vring_init(&vr->vr, num, vr->va, MIC_VIRTIO_RING_ALIGN);
 		ret = vringh_init_kern(&mvr->vrh,
 			*(u32 *)mic_vq_features(mvdev->dd), num, false,
 			vr->vr.desc, vr->vr.avail, vr->vr.used);
@@ -593,8 +590,8 @@ int mic_virtio_add_device(struct mic_vdev *mvdev,
 			__func__, __LINE__, i, vr->va, vr->info, vr_size);
 	}
 
-	snprintf(irqname, sizeof(irqname),
-		"mic%dvirtio%d", mdev->id, mvdev->virtio_id);
+	snprintf(irqname, sizeof(irqname), "mic%dvirtio%d", mdev->id,
+		 mvdev->virtio_id);
 	mvdev->virtio_db = mic_next_db(mdev);
 	mvdev->virtio_cookie = mic_request_irq(mdev, mic_virtio_intr_handler,
 			irqname, mvdev, mvdev->virtio_db, MIC_INTR_DB);
@@ -628,9 +625,9 @@ err:
 	for (j = 0; j < i; j++) {
 		struct mic_vringh *mvr = &mvdev->mvr[j];
 		mic_unmap_single(mdev, le64_to_cpu(vqconfig[j].address),
-				mvr->vring.len);
+				 mvr->vring.len);
 		free_pages((unsigned long)mvr->vring.va,
-			get_order(mvr->vring.len));
+			   get_order(mvr->vring.len));
 	}
 	mutex_unlock(&mdev->mic_mutex);
 	return ret;
@@ -676,9 +673,9 @@ skip_hot_remove:
 		vringh_kiov_cleanup(&mvr->riov);
 		vringh_kiov_cleanup(&mvr->wiov);
 		mic_unmap_single(mdev, le64_to_cpu(vqconfig[i].address),
-				mvr->vring.len);
+				 mvr->vring.len);
 		free_pages((unsigned long)mvr->vring.va,
-			get_order(mvr->vring.len));
+			   get_order(mvr->vring.len));
 	}
 
 	list_for_each_safe(pos, tmp, &mdev->vdev_list) {
diff --git a/drivers/misc/mic/host/mic_x100.c b/drivers/misc/mic/host/mic_x100.c
index 3a0d660bad4a..81e9541b784c 100644
--- a/drivers/misc/mic/host/mic_x100.c
+++ b/drivers/misc/mic/host/mic_x100.c
@@ -46,8 +46,8 @@ mic_x100_write_spad(struct mic_device *mdev, unsigned int idx, u32 val)
 	dev_dbg(mdev->sdev->parent, "Writing 0x%x to scratch pad index %d\n",
 		val, idx);
 	mic_mmio_write(&mdev->mmio, val,
-		MIC_X100_SBOX_BASE_ADDRESS +
-		MIC_X100_SBOX_SPAD0 + idx * 4);
+		       MIC_X100_SBOX_BASE_ADDRESS +
+		       MIC_X100_SBOX_SPAD0 + idx * 4);
 }
 
 /**
@@ -130,8 +130,8 @@ static void mic_x100_send_sbox_intr(struct mic_device *mdev,
 {
 	struct mic_mw *mw = &mdev->mmio;
 	u64 apic_icr_offset = MIC_X100_SBOX_APICICR0 + doorbell * 8;
-	u32 apicicr_low = mic_mmio_read(mw,
-			MIC_X100_SBOX_BASE_ADDRESS + apic_icr_offset);
+	u32 apicicr_low = mic_mmio_read(mw, MIC_X100_SBOX_BASE_ADDRESS +
+					apic_icr_offset);
 
 	/* for MIC we need to make sure we "hit" the send_icr bit (13) */
 	apicicr_low = (apicicr_low | (1 << 13));
@@ -139,7 +139,7 @@ static void mic_x100_send_sbox_intr(struct mic_device *mdev,
 	/* Ensure that the interrupt is ordered w.r.t. previous stores. */
 	wmb();
 	mic_mmio_write(mw, apicicr_low,
-		MIC_X100_SBOX_BASE_ADDRESS + apic_icr_offset);
+		       MIC_X100_SBOX_BASE_ADDRESS + apic_icr_offset);
 }
 
 /**
@@ -153,7 +153,7 @@ static void mic_x100_send_rdmasr_intr(struct mic_device *mdev,
 	/* Ensure that the interrupt is ordered w.r.t. previous stores. */
 	wmb();
 	mic_mmio_write(&mdev->mmio, 0,
-		MIC_X100_SBOX_BASE_ADDRESS + rdmasr_offset);
+		       MIC_X100_SBOX_BASE_ADDRESS + rdmasr_offset);
 }
 
 /**
@@ -212,7 +212,7 @@ done:
  */
 static void mic_x100_hw_intr_init(struct mic_device *mdev)
 {
-	mdev->intr_info = (struct mic_intr_info *) mic_x100_intr_init;
+	mdev->intr_info = (struct mic_intr_info *)mic_x100_intr_init;
 }
 
 /**
@@ -244,7 +244,7 @@ mic_x100_read_msi_to_src_map(struct mic_device *mdev, int idx)
  */
 static void
 mic_x100_program_msi_to_src_map(struct mic_device *mdev,
-			int idx, int offset, bool set)
+				int idx, int offset, bool set)
 {
 	unsigned long reg;
 	struct mic_mw *mw = &mdev->mmio;
@@ -308,12 +308,12 @@ static void mic_x100_send_firmware_intr(struct mic_device *mdev)
 	apicicr_low = (vector | (1 << 13));
 
 	mic_mmio_write(mw, mic_x100_get_apic_id(mdev),
-		MIC_X100_SBOX_BASE_ADDRESS + apic_icr_offset + 4);
+		       MIC_X100_SBOX_BASE_ADDRESS + apic_icr_offset + 4);
 
 	/* Ensure that the interrupt is ordered w.r.t. previous stores. */
 	wmb();
 	mic_mmio_write(mw, apicicr_low,
-		MIC_X100_SBOX_BASE_ADDRESS + apic_icr_offset);
+		       MIC_X100_SBOX_BASE_ADDRESS + apic_icr_offset);
 }
 
 /**
@@ -365,8 +365,7 @@ mic_x100_load_command_line(struct mic_device *mdev, const struct firmware *fw)
 	len += snprintf(buf, CMDLINE_SIZE - len,
 		" mem=%dM", boot_mem);
 	if (mdev->cmdline)
-		snprintf(buf + len, CMDLINE_SIZE - len,
-				" %s", mdev->cmdline);
+		snprintf(buf + len, CMDLINE_SIZE - len, " %s", mdev->cmdline);
 	memcpy_toio(cmd_line_va, buf, strlen(buf) + 1);
 	kfree(buf);
 	return 0;
@@ -397,8 +396,7 @@ mic_x100_load_ramdisk(struct mic_device *mdev)
 	 * Typically the bootaddr for card OS is 64M
 	 * so copy over the ramdisk @ 128M.
 	 */
-	memcpy_toio(mdev->aper.va + (mdev->bootaddr << 1),
-		fw->data, fw->size);
+	memcpy_toio(mdev->aper.va + (mdev->bootaddr << 1), fw->data, fw->size);
 	iowrite32(cpu_to_le32(mdev->bootaddr << 1), &bp->hdr.ramdisk_image);
 	iowrite32(cpu_to_le32(fw->size), &bp->hdr.ramdisk_size);
 	release_firmware(fw);
@@ -484,8 +482,7 @@ mic_x100_load_firmware(struct mic_device *mdev, const char *buf)
 	if (mdev->ramdisk)
 		rc = mic_x100_load_ramdisk(mdev);
 error:
-	dev_dbg(mdev->sdev->parent, "%s %d rc %d\n",
-			__func__, __LINE__, rc);
+	dev_dbg(mdev->sdev->parent, "%s %d rc %d\n", __func__, __LINE__, rc);
 done:
 	return rc;
 }
@@ -524,8 +521,8 @@ mic_x100_smpt_set(struct mic_device *mdev, dma_addr_t dma_addr, u8 index)
 	uint32_t smpt_reg_val = BUILD_SMPT(SNOOP_ON,
 			dma_addr >> mdev->smpt->info.page_shift);
 	mic_mmio_write(&mdev->mmio, smpt_reg_val,
-		MIC_X100_SBOX_BASE_ADDRESS +
-		MIC_X100_SBOX_SMPT00 + (4 * index));
+		       MIC_X100_SBOX_BASE_ADDRESS +
+		       MIC_X100_SBOX_SMPT00 + (4 * index));
 }
 
 /**
-- 
cgit 


From b019ba959fc4600a646bb9d732149b1b0056f88a Mon Sep 17 00:00:00 2001
From: Sudeep Dutt <sudeep.dutt@intel.com>
Date: Fri, 27 Sep 2013 09:50:06 -0700
Subject: misc: mic: fix a warning in the IOCTL header file.

The following warning from mic_ioctl.h is fixed via this patch:
found __[us]{8,16,32,64} type without #include <linux/types.h>

Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Harshavardhan R Kharche <harshavardhan.r.kharche@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/uapi/linux/mic_ioctl.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/uapi/linux/mic_ioctl.h b/include/uapi/linux/mic_ioctl.h
index 0e6cbf3e5292..7fabba5059cf 100644
--- a/include/uapi/linux/mic_ioctl.h
+++ b/include/uapi/linux/mic_ioctl.h
@@ -21,6 +21,8 @@
 #ifndef _MIC_IOCTL_H_
 #define _MIC_IOCTL_H_
 
+#include <linux/types.h>
+
 /*
  * mic_copy - MIC virtio descriptor copy.
  *
-- 
cgit 


From 80d26236c7c583ea2f43b68008ab7e067102c62c Mon Sep 17 00:00:00 2001
From: Sudeep Dutt <sudeep.dutt@intel.com>
Date: Fri, 27 Sep 2013 09:50:16 -0700
Subject: misc: mic: depend on X86 for both host and card drivers.

This fixes build failures seen on certain non X86 architectures.
The card driver should correctly always depend on X86. The host
driver can potentially work on non X86 architectures although
it has never been built or validated in such configurations.
The host driver dependency on X86 can be removed at some point
in the future but this workaround is required for now.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Harshavardhan R Kharche <harshavardhan.r.kharche@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mic/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/misc/mic/Kconfig b/drivers/misc/mic/Kconfig
index d453768e9cee..e42b331edbc6 100644
--- a/drivers/misc/mic/Kconfig
+++ b/drivers/misc/mic/Kconfig
@@ -2,7 +2,7 @@ comment "Intel MIC Host Driver"
 
 config INTEL_MIC_HOST
 	tristate "Intel MIC Host Driver"
-	depends on 64BIT && PCI
+	depends on 64BIT && PCI && X86
 	select VHOST_RING
 	default N
 	help
@@ -23,7 +23,7 @@ comment "Intel MIC Card Driver"
 
 config INTEL_MIC_CARD
 	tristate "Intel MIC Card Driver"
-	depends on 64BIT
+	depends on 64BIT && X86
 	select VIRTIO
 	default N
 	help
-- 
cgit 


From ff764963479a1b18721ab96e531404c50fefe8b1 Mon Sep 17 00:00:00 2001
From: Kishon Vijay Abraham I <kishon@ti.com>
Date: Fri, 27 Sep 2013 11:53:25 +0530
Subject: drivers: phy: add generic PHY framework

The PHY framework provides a set of APIs for the PHY drivers to
create/destroy a PHY and APIs for the PHY users to obtain a reference to the
PHY with or without using phandle. For dt-boot, the PHY drivers should
also register *PHY provider* with the framework.

PHY drivers should create the PHY by passing id and ops like init, exit,
power_on and power_off. This framework is also pm runtime enabled.

The documentation for the generic PHY framework is added in
Documentation/phy.txt and the documentation for dt binding can be found at
Documentation/devicetree/bindings/phy/phy-bindings.txt

Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Tested-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../devicetree/bindings/phy/phy-bindings.txt       |  66 ++
 Documentation/phy.txt                              | 166 +++++
 MAINTAINERS                                        |   8 +
 drivers/Kconfig                                    |   2 +
 drivers/Makefile                                   |   2 +
 drivers/phy/Kconfig                                |  18 +
 drivers/phy/Makefile                               |   5 +
 drivers/phy/phy-core.c                             | 698 +++++++++++++++++++++
 include/linux/phy/phy.h                            | 270 ++++++++
 9 files changed, 1235 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/phy/phy-bindings.txt
 create mode 100644 Documentation/phy.txt
 create mode 100644 drivers/phy/Kconfig
 create mode 100644 drivers/phy/Makefile
 create mode 100644 drivers/phy/phy-core.c
 create mode 100644 include/linux/phy/phy.h

diff --git a/Documentation/devicetree/bindings/phy/phy-bindings.txt b/Documentation/devicetree/bindings/phy/phy-bindings.txt
new file mode 100644
index 000000000000..8ae844fc0c60
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/phy-bindings.txt
@@ -0,0 +1,66 @@
+This document explains only the device tree data binding. For general
+information about PHY subsystem refer to Documentation/phy.txt
+
+PHY device node
+===============
+
+Required Properties:
+#phy-cells:	Number of cells in a PHY specifier;  The meaning of all those
+		cells is defined by the binding for the phy node. The PHY
+		provider can use the values in cells to find the appropriate
+		PHY.
+
+For example:
+
+phys: phy {
+    compatible = "xxx";
+    reg = <...>;
+    .
+    .
+    #phy-cells = <1>;
+    .
+    .
+};
+
+That node describes an IP block (PHY provider) that implements 2 different PHYs.
+In order to differentiate between these 2 PHYs, an additonal specifier should be
+given while trying to get a reference to it.
+
+PHY user node
+=============
+
+Required Properties:
+phys : the phandle for the PHY device (used by the PHY subsystem)
+phy-names : the names of the PHY corresponding to the PHYs present in the
+	    *phys* phandle
+
+Example 1:
+usb1: usb_otg_ss@xxx {
+    compatible = "xxx";
+    reg = <xxx>;
+    .
+    .
+    phys = <&usb2_phy>, <&usb3_phy>;
+    phy-names = "usb2phy", "usb3phy";
+    .
+    .
+};
+
+This node represents a controller that uses two PHYs, one for usb2 and one for
+usb3.
+
+Example 2:
+usb2: usb_otg_ss@xxx {
+    compatible = "xxx";
+    reg = <xxx>;
+    .
+    .
+    phys = <&phys 1>;
+    phy-names = "usbphy";
+    .
+    .
+};
+
+This node represents a controller that uses one of the PHYs of the PHY provider
+device defined previously. Note that the phy handle has an additional specifier
+"1" to differentiate between the two PHYs.
diff --git a/Documentation/phy.txt b/Documentation/phy.txt
new file mode 100644
index 000000000000..0103e4b15b0e
--- /dev/null
+++ b/Documentation/phy.txt
@@ -0,0 +1,166 @@
+			    PHY SUBSYSTEM
+		  Kishon Vijay Abraham I <kishon@ti.com>
+
+This document explains the Generic PHY Framework along with the APIs provided,
+and how-to-use.
+
+1. Introduction
+
+*PHY* is the abbreviation for physical layer. It is used to connect a device
+to the physical medium e.g., the USB controller has a PHY to provide functions
+such as serialization, de-serialization, encoding, decoding and is responsible
+for obtaining the required data transmission rate. Note that some USB
+controllers have PHY functionality embedded into it and others use an external
+PHY. Other peripherals that use PHY include Wireless LAN, Ethernet,
+SATA etc.
+
+The intention of creating this framework is to bring the PHY drivers spread
+all over the Linux kernel to drivers/phy to increase code re-use and for
+better code maintainability.
+
+This framework will be of use only to devices that use external PHY (PHY
+functionality is not embedded within the controller).
+
+2. Registering/Unregistering the PHY provider
+
+PHY provider refers to an entity that implements one or more PHY instances.
+For the simple case where the PHY provider implements only a single instance of
+the PHY, the framework provides its own implementation of of_xlate in
+of_phy_simple_xlate. If the PHY provider implements multiple instances, it
+should provide its own implementation of of_xlate. of_xlate is used only for
+dt boot case.
+
+#define of_phy_provider_register(dev, xlate)    \
+        __of_phy_provider_register((dev), THIS_MODULE, (xlate))
+
+#define devm_of_phy_provider_register(dev, xlate)       \
+        __devm_of_phy_provider_register((dev), THIS_MODULE, (xlate))
+
+of_phy_provider_register and devm_of_phy_provider_register macros can be used to
+register the phy_provider and it takes device and of_xlate as
+arguments. For the dt boot case, all PHY providers should use one of the above
+2 macros to register the PHY provider.
+
+void devm_of_phy_provider_unregister(struct device *dev,
+	struct phy_provider *phy_provider);
+void of_phy_provider_unregister(struct phy_provider *phy_provider);
+
+devm_of_phy_provider_unregister and of_phy_provider_unregister can be used to
+unregister the PHY.
+
+3. Creating the PHY
+
+The PHY driver should create the PHY in order for other peripheral controllers
+to make use of it. The PHY framework provides 2 APIs to create the PHY.
+
+struct phy *phy_create(struct device *dev, const struct phy_ops *ops,
+        struct phy_init_data *init_data);
+struct phy *devm_phy_create(struct device *dev, const struct phy_ops *ops,
+	struct phy_init_data *init_data);
+
+The PHY drivers can use one of the above 2 APIs to create the PHY by passing
+the device pointer, phy ops and init_data.
+phy_ops is a set of function pointers for performing PHY operations such as
+init, exit, power_on and power_off. *init_data* is mandatory to get a reference
+to the PHY in the case of non-dt boot. See section *Board File Initialization*
+on how init_data should be used.
+
+Inorder to dereference the private data (in phy_ops), the phy provider driver
+can use phy_set_drvdata() after creating the PHY and use phy_get_drvdata() in
+phy_ops to get back the private data.
+
+4. Getting a reference to the PHY
+
+Before the controller can make use of the PHY, it has to get a reference to
+it. This framework provides the following APIs to get a reference to the PHY.
+
+struct phy *phy_get(struct device *dev, const char *string);
+struct phy *devm_phy_get(struct device *dev, const char *string);
+
+phy_get and devm_phy_get can be used to get the PHY. In the case of dt boot,
+the string arguments should contain the phy name as given in the dt data and
+in the case of non-dt boot, it should contain the label of the PHY.
+The only difference between the two APIs is that devm_phy_get associates the
+device with the PHY using devres on successful PHY get. On driver detach,
+release function is invoked on the the devres data and devres data is freed.
+
+5. Releasing a reference to the PHY
+
+When the controller no longer needs the PHY, it has to release the reference
+to the PHY it has obtained using the APIs mentioned in the above section. The
+PHY framework provides 2 APIs to release a reference to the PHY.
+
+void phy_put(struct phy *phy);
+void devm_phy_put(struct device *dev, struct phy *phy);
+
+Both these APIs are used to release a reference to the PHY and devm_phy_put
+destroys the devres associated with this PHY.
+
+6. Destroying the PHY
+
+When the driver that created the PHY is unloaded, it should destroy the PHY it
+created using one of the following 2 APIs.
+
+void phy_destroy(struct phy *phy);
+void devm_phy_destroy(struct device *dev, struct phy *phy);
+
+Both these APIs destroy the PHY and devm_phy_destroy destroys the devres
+associated with this PHY.
+
+7. PM Runtime
+
+This subsystem is pm runtime enabled. So while creating the PHY,
+pm_runtime_enable of the phy device created by this subsystem is called and
+while destroying the PHY, pm_runtime_disable is called. Note that the phy
+device created by this subsystem will be a child of the device that calls
+phy_create (PHY provider device).
+
+So pm_runtime_get_sync of the phy_device created by this subsystem will invoke
+pm_runtime_get_sync of PHY provider device because of parent-child relationship.
+It should also be noted that phy_power_on and phy_power_off performs
+phy_pm_runtime_get_sync and phy_pm_runtime_put respectively.
+There are exported APIs like phy_pm_runtime_get, phy_pm_runtime_get_sync,
+phy_pm_runtime_put, phy_pm_runtime_put_sync, phy_pm_runtime_allow and
+phy_pm_runtime_forbid for performing PM operations.
+
+8. Board File Initialization
+
+Certain board file initialization is necessary in order to get a reference
+to the PHY in the case of non-dt boot.
+Say we have a single device that implements 3 PHYs that of USB, SATA and PCIe,
+then in the board file the following initialization should be done.
+
+struct phy_consumer consumers[] = {
+	PHY_CONSUMER("dwc3.0", "usb"),
+	PHY_CONSUMER("pcie.0", "pcie"),
+	PHY_CONSUMER("sata.0", "sata"),
+};
+PHY_CONSUMER takes 2 parameters, first is the device name of the controller
+(PHY consumer) and second is the port name.
+
+struct phy_init_data init_data = {
+	.consumers = consumers,
+	.num_consumers = ARRAY_SIZE(consumers),
+};
+
+static const struct platform_device pipe3_phy_dev = {
+	.name = "pipe3-phy",
+	.id = -1,
+	.dev = {
+		.platform_data = {
+			.init_data = &init_data,
+		},
+	},
+};
+
+then, while doing phy_create, the PHY driver should pass this init_data
+	phy_create(dev, ops, pdata->init_data);
+
+and the controller driver (phy consumer) should pass the port name along with
+the device to get a reference to the PHY
+	phy_get(dev, "pcie");
+
+9. DeviceTree Binding
+
+The documentation for PHY dt binding can be found @
+Documentation/devicetree/bindings/phy/phy-bindings.txt
diff --git a/MAINTAINERS b/MAINTAINERS
index e61c2e83fc2b..e0e6ae2b65e8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3654,6 +3654,14 @@ S:	Maintained
 F:	include/asm-generic/
 F:	include/uapi/asm-generic/
 
+GENERIC PHY FRAMEWORK
+M:	Kishon Vijay Abraham I <kishon@ti.com>
+L:	linux-kernel@vger.kernel.org
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/kishon/linux-phy.git
+S:	Supported
+F:	drivers/phy/
+F:	include/linux/phy/
+
 GENERIC UIO DRIVER FOR PCI DEVICES
 M:	"Michael S. Tsirkin" <mst@redhat.com>
 L:	kvm@vger.kernel.org
diff --git a/drivers/Kconfig b/drivers/Kconfig
index aa43b911ccef..8f451449abd3 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -166,4 +166,6 @@ source "drivers/reset/Kconfig"
 
 source "drivers/fmc/Kconfig"
 
+source "drivers/phy/Kconfig"
+
 endmenu
diff --git a/drivers/Makefile b/drivers/Makefile
index ab93de8297f1..687da899cadb 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -8,6 +8,8 @@
 obj-y				+= irqchip/
 obj-y				+= bus/
 
+obj-$(CONFIG_GENERIC_PHY)	+= phy/
+
 # GPIO must come after pinctrl as gpios may need to mux pins etc
 obj-y				+= pinctrl/
 obj-y				+= gpio/
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
new file mode 100644
index 000000000000..349bef2e6e4e
--- /dev/null
+++ b/drivers/phy/Kconfig
@@ -0,0 +1,18 @@
+#
+# PHY
+#
+
+menu "PHY Subsystem"
+
+config GENERIC_PHY
+	tristate "PHY Core"
+	help
+	  Generic PHY support.
+
+	  This framework is designed to provide a generic interface for PHY
+	  devices present in the kernel. This layer will have the generic
+	  API by which phy drivers can create PHY using the phy framework and
+	  phy users can obtain reference to the PHY. All the users of this
+	  framework should select this config.
+
+endmenu
diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
new file mode 100644
index 000000000000..9e9560fbb14d
--- /dev/null
+++ b/drivers/phy/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the phy drivers.
+#
+
+obj-$(CONFIG_GENERIC_PHY)	+= phy-core.o
diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
new file mode 100644
index 000000000000..03cf8fb81554
--- /dev/null
+++ b/drivers/phy/phy-core.c
@@ -0,0 +1,698 @@
+/*
+ * phy-core.c  --  Generic Phy framework.
+ *
+ * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com
+ *
+ * Author: Kishon Vijay Abraham I <kishon@ti.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/export.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/phy/phy.h>
+#include <linux/idr.h>
+#include <linux/pm_runtime.h>
+
+static struct class *phy_class;
+static DEFINE_MUTEX(phy_provider_mutex);
+static LIST_HEAD(phy_provider_list);
+static DEFINE_IDA(phy_ida);
+
+static void devm_phy_release(struct device *dev, void *res)
+{
+	struct phy *phy = *(struct phy **)res;
+
+	phy_put(phy);
+}
+
+static void devm_phy_provider_release(struct device *dev, void *res)
+{
+	struct phy_provider *phy_provider = *(struct phy_provider **)res;
+
+	of_phy_provider_unregister(phy_provider);
+}
+
+static void devm_phy_consume(struct device *dev, void *res)
+{
+	struct phy *phy = *(struct phy **)res;
+
+	phy_destroy(phy);
+}
+
+static int devm_phy_match(struct device *dev, void *res, void *match_data)
+{
+	return res == match_data;
+}
+
+static struct phy *phy_lookup(struct device *device, const char *port)
+{
+	unsigned int count;
+	struct phy *phy;
+	struct device *dev;
+	struct phy_consumer *consumers;
+	struct class_dev_iter iter;
+
+	class_dev_iter_init(&iter, phy_class, NULL, NULL);
+	while ((dev = class_dev_iter_next(&iter))) {
+		phy = to_phy(dev);
+		count = phy->init_data->num_consumers;
+		consumers = phy->init_data->consumers;
+		while (count--) {
+			if (!strcmp(consumers->dev_name, dev_name(device)) &&
+					!strcmp(consumers->port, port)) {
+				class_dev_iter_exit(&iter);
+				return phy;
+			}
+			consumers++;
+		}
+	}
+
+	class_dev_iter_exit(&iter);
+	return ERR_PTR(-ENODEV);
+}
+
+static struct phy_provider *of_phy_provider_lookup(struct device_node *node)
+{
+	struct phy_provider *phy_provider;
+
+	list_for_each_entry(phy_provider, &phy_provider_list, list) {
+		if (phy_provider->dev->of_node == node)
+			return phy_provider;
+	}
+
+	return ERR_PTR(-EPROBE_DEFER);
+}
+
+int phy_pm_runtime_get(struct phy *phy)
+{
+	if (!pm_runtime_enabled(&phy->dev))
+		return -ENOTSUPP;
+
+	return pm_runtime_get(&phy->dev);
+}
+EXPORT_SYMBOL_GPL(phy_pm_runtime_get);
+
+int phy_pm_runtime_get_sync(struct phy *phy)
+{
+	if (!pm_runtime_enabled(&phy->dev))
+		return -ENOTSUPP;
+
+	return pm_runtime_get_sync(&phy->dev);
+}
+EXPORT_SYMBOL_GPL(phy_pm_runtime_get_sync);
+
+int phy_pm_runtime_put(struct phy *phy)
+{
+	if (!pm_runtime_enabled(&phy->dev))
+		return -ENOTSUPP;
+
+	return pm_runtime_put(&phy->dev);
+}
+EXPORT_SYMBOL_GPL(phy_pm_runtime_put);
+
+int phy_pm_runtime_put_sync(struct phy *phy)
+{
+	if (!pm_runtime_enabled(&phy->dev))
+		return -ENOTSUPP;
+
+	return pm_runtime_put_sync(&phy->dev);
+}
+EXPORT_SYMBOL_GPL(phy_pm_runtime_put_sync);
+
+void phy_pm_runtime_allow(struct phy *phy)
+{
+	if (!pm_runtime_enabled(&phy->dev))
+		return;
+
+	pm_runtime_allow(&phy->dev);
+}
+EXPORT_SYMBOL_GPL(phy_pm_runtime_allow);
+
+void phy_pm_runtime_forbid(struct phy *phy)
+{
+	if (!pm_runtime_enabled(&phy->dev))
+		return;
+
+	pm_runtime_forbid(&phy->dev);
+}
+EXPORT_SYMBOL_GPL(phy_pm_runtime_forbid);
+
+int phy_init(struct phy *phy)
+{
+	int ret;
+
+	ret = phy_pm_runtime_get_sync(phy);
+	if (ret < 0 && ret != -ENOTSUPP)
+		return ret;
+
+	mutex_lock(&phy->mutex);
+	if (phy->init_count++ == 0 && phy->ops->init) {
+		ret = phy->ops->init(phy);
+		if (ret < 0) {
+			dev_err(&phy->dev, "phy init failed --> %d\n", ret);
+			goto out;
+		}
+	}
+
+out:
+	mutex_unlock(&phy->mutex);
+	phy_pm_runtime_put(phy);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(phy_init);
+
+int phy_exit(struct phy *phy)
+{
+	int ret;
+
+	ret = phy_pm_runtime_get_sync(phy);
+	if (ret < 0 && ret != -ENOTSUPP)
+		return ret;
+
+	mutex_lock(&phy->mutex);
+	if (--phy->init_count == 0 && phy->ops->exit) {
+		ret = phy->ops->exit(phy);
+		if (ret < 0) {
+			dev_err(&phy->dev, "phy exit failed --> %d\n", ret);
+			goto out;
+		}
+	}
+
+out:
+	mutex_unlock(&phy->mutex);
+	phy_pm_runtime_put(phy);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(phy_exit);
+
+int phy_power_on(struct phy *phy)
+{
+	int ret = -ENOTSUPP;
+
+	ret = phy_pm_runtime_get_sync(phy);
+	if (ret < 0 && ret != -ENOTSUPP)
+		return ret;
+
+	mutex_lock(&phy->mutex);
+	if (phy->power_count++ == 0 && phy->ops->power_on) {
+		ret = phy->ops->power_on(phy);
+		if (ret < 0) {
+			dev_err(&phy->dev, "phy poweron failed --> %d\n", ret);
+			goto out;
+		}
+	}
+
+out:
+	mutex_unlock(&phy->mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(phy_power_on);
+
+int phy_power_off(struct phy *phy)
+{
+	int ret = -ENOTSUPP;
+
+	mutex_lock(&phy->mutex);
+	if (--phy->power_count == 0 && phy->ops->power_off) {
+		ret =  phy->ops->power_off(phy);
+		if (ret < 0) {
+			dev_err(&phy->dev, "phy poweroff failed --> %d\n", ret);
+			goto out;
+		}
+	}
+
+out:
+	mutex_unlock(&phy->mutex);
+	phy_pm_runtime_put(phy);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(phy_power_off);
+
+/**
+ * of_phy_get() - lookup and obtain a reference to a phy by phandle
+ * @dev: device that requests this phy
+ * @index: the index of the phy
+ *
+ * Returns the phy associated with the given phandle value,
+ * after getting a refcount to it or -ENODEV if there is no such phy or
+ * -EPROBE_DEFER if there is a phandle to the phy, but the device is
+ * not yet loaded. This function uses of_xlate call back function provided
+ * while registering the phy_provider to find the phy instance.
+ */
+static struct phy *of_phy_get(struct device *dev, int index)
+{
+	int ret;
+	struct phy_provider *phy_provider;
+	struct phy *phy = NULL;
+	struct of_phandle_args args;
+
+	ret = of_parse_phandle_with_args(dev->of_node, "phys", "#phy-cells",
+		index, &args);
+	if (ret) {
+		dev_dbg(dev, "failed to get phy in %s node\n",
+			dev->of_node->full_name);
+		return ERR_PTR(-ENODEV);
+	}
+
+	mutex_lock(&phy_provider_mutex);
+	phy_provider = of_phy_provider_lookup(args.np);
+	if (IS_ERR(phy_provider) || !try_module_get(phy_provider->owner)) {
+		phy = ERR_PTR(-EPROBE_DEFER);
+		goto err0;
+	}
+
+	phy = phy_provider->of_xlate(phy_provider->dev, &args);
+	module_put(phy_provider->owner);
+
+err0:
+	mutex_unlock(&phy_provider_mutex);
+	of_node_put(args.np);
+
+	return phy;
+}
+
+/**
+ * phy_put() - release the PHY
+ * @phy: the phy returned by phy_get()
+ *
+ * Releases a refcount the caller received from phy_get().
+ */
+void phy_put(struct phy *phy)
+{
+	if (IS_ERR(phy))
+		return;
+
+	module_put(phy->ops->owner);
+	put_device(&phy->dev);
+}
+EXPORT_SYMBOL_GPL(phy_put);
+
+/**
+ * devm_phy_put() - release the PHY
+ * @dev: device that wants to release this phy
+ * @phy: the phy returned by devm_phy_get()
+ *
+ * destroys the devres associated with this phy and invokes phy_put
+ * to release the phy.
+ */
+void devm_phy_put(struct device *dev, struct phy *phy)
+{
+	int r;
+
+	r = devres_destroy(dev, devm_phy_release, devm_phy_match, phy);
+	dev_WARN_ONCE(dev, r, "couldn't find PHY resource\n");
+}
+EXPORT_SYMBOL_GPL(devm_phy_put);
+
+/**
+ * of_phy_simple_xlate() - returns the phy instance from phy provider
+ * @dev: the PHY provider device
+ * @args: of_phandle_args (not used here)
+ *
+ * Intended to be used by phy provider for the common case where #phy-cells is
+ * 0. For other cases where #phy-cells is greater than '0', the phy provider
+ * should provide a custom of_xlate function that reads the *args* and returns
+ * the appropriate phy.
+ */
+struct phy *of_phy_simple_xlate(struct device *dev, struct of_phandle_args
+	*args)
+{
+	struct phy *phy;
+	struct class_dev_iter iter;
+	struct device_node *node = dev->of_node;
+
+	class_dev_iter_init(&iter, phy_class, NULL, NULL);
+	while ((dev = class_dev_iter_next(&iter))) {
+		phy = to_phy(dev);
+		if (node != phy->dev.of_node)
+			continue;
+
+		class_dev_iter_exit(&iter);
+		return phy;
+	}
+
+	class_dev_iter_exit(&iter);
+	return ERR_PTR(-ENODEV);
+}
+EXPORT_SYMBOL_GPL(of_phy_simple_xlate);
+
+/**
+ * phy_get() - lookup and obtain a reference to a phy.
+ * @dev: device that requests this phy
+ * @string: the phy name as given in the dt data or the name of the controller
+ * port for non-dt case
+ *
+ * Returns the phy driver, after getting a refcount to it; or
+ * -ENODEV if there is no such phy.  The caller is responsible for
+ * calling phy_put() to release that count.
+ */
+struct phy *phy_get(struct device *dev, const char *string)
+{
+	int index = 0;
+	struct phy *phy = NULL;
+
+	if (string == NULL) {
+		dev_WARN(dev, "missing string\n");
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (dev->of_node) {
+		index = of_property_match_string(dev->of_node, "phy-names",
+			string);
+		phy = of_phy_get(dev, index);
+		if (IS_ERR(phy)) {
+			dev_err(dev, "unable to find phy\n");
+			return phy;
+		}
+	} else {
+		phy = phy_lookup(dev, string);
+		if (IS_ERR(phy)) {
+			dev_err(dev, "unable to find phy\n");
+			return phy;
+		}
+	}
+
+	if (!try_module_get(phy->ops->owner))
+		return ERR_PTR(-EPROBE_DEFER);
+
+	get_device(&phy->dev);
+
+	return phy;
+}
+EXPORT_SYMBOL_GPL(phy_get);
+
+/**
+ * devm_phy_get() - lookup and obtain a reference to a phy.
+ * @dev: device that requests this phy
+ * @string: the phy name as given in the dt data or phy device name
+ * for non-dt case
+ *
+ * Gets the phy using phy_get(), and associates a device with it using
+ * devres. On driver detach, release function is invoked on the devres data,
+ * then, devres data is freed.
+ */
+struct phy *devm_phy_get(struct device *dev, const char *string)
+{
+	struct phy **ptr, *phy;
+
+	ptr = devres_alloc(devm_phy_release, sizeof(*ptr), GFP_KERNEL);
+	if (!ptr)
+		return ERR_PTR(-ENOMEM);
+
+	phy = phy_get(dev, string);
+	if (!IS_ERR(phy)) {
+		*ptr = phy;
+		devres_add(dev, ptr);
+	} else {
+		devres_free(ptr);
+	}
+
+	return phy;
+}
+EXPORT_SYMBOL_GPL(devm_phy_get);
+
+/**
+ * phy_create() - create a new phy
+ * @dev: device that is creating the new phy
+ * @ops: function pointers for performing phy operations
+ * @init_data: contains the list of PHY consumers or NULL
+ *
+ * Called to create a phy using phy framework.
+ */
+struct phy *phy_create(struct device *dev, const struct phy_ops *ops,
+	struct phy_init_data *init_data)
+{
+	int ret;
+	int id;
+	struct phy *phy;
+
+	if (!dev) {
+		dev_WARN(dev, "no device provided for PHY\n");
+		ret = -EINVAL;
+		goto err0;
+	}
+
+	phy = kzalloc(sizeof(*phy), GFP_KERNEL);
+	if (!phy) {
+		ret = -ENOMEM;
+		goto err0;
+	}
+
+	id = ida_simple_get(&phy_ida, 0, 0, GFP_KERNEL);
+	if (id < 0) {
+		dev_err(dev, "unable to get id\n");
+		ret = id;
+		goto err0;
+	}
+
+	device_initialize(&phy->dev);
+	mutex_init(&phy->mutex);
+
+	phy->dev.class = phy_class;
+	phy->dev.parent = dev;
+	phy->dev.of_node = dev->of_node;
+	phy->id = id;
+	phy->ops = ops;
+	phy->init_data = init_data;
+
+	ret = dev_set_name(&phy->dev, "phy-%s.%d", dev_name(dev), id);
+	if (ret)
+		goto err1;
+
+	ret = device_add(&phy->dev);
+	if (ret)
+		goto err1;
+
+	if (pm_runtime_enabled(dev)) {
+		pm_runtime_enable(&phy->dev);
+		pm_runtime_no_callbacks(&phy->dev);
+	}
+
+	return phy;
+
+err1:
+	ida_remove(&phy_ida, phy->id);
+	put_device(&phy->dev);
+	kfree(phy);
+
+err0:
+	return ERR_PTR(ret);
+}
+EXPORT_SYMBOL_GPL(phy_create);
+
+/**
+ * devm_phy_create() - create a new phy
+ * @dev: device that is creating the new phy
+ * @ops: function pointers for performing phy operations
+ * @init_data: contains the list of PHY consumers or NULL
+ *
+ * Creates a new PHY device adding it to the PHY class.
+ * While at that, it also associates the device with the phy using devres.
+ * On driver detach, release function is invoked on the devres data,
+ * then, devres data is freed.
+ */
+struct phy *devm_phy_create(struct device *dev, const struct phy_ops *ops,
+	struct phy_init_data *init_data)
+{
+	struct phy **ptr, *phy;
+
+	ptr = devres_alloc(devm_phy_consume, sizeof(*ptr), GFP_KERNEL);
+	if (!ptr)
+		return ERR_PTR(-ENOMEM);
+
+	phy = phy_create(dev, ops, init_data);
+	if (!IS_ERR(phy)) {
+		*ptr = phy;
+		devres_add(dev, ptr);
+	} else {
+		devres_free(ptr);
+	}
+
+	return phy;
+}
+EXPORT_SYMBOL_GPL(devm_phy_create);
+
+/**
+ * phy_destroy() - destroy the phy
+ * @phy: the phy to be destroyed
+ *
+ * Called to destroy the phy.
+ */
+void phy_destroy(struct phy *phy)
+{
+	pm_runtime_disable(&phy->dev);
+	device_unregister(&phy->dev);
+}
+EXPORT_SYMBOL_GPL(phy_destroy);
+
+/**
+ * devm_phy_destroy() - destroy the PHY
+ * @dev: device that wants to release this phy
+ * @phy: the phy returned by devm_phy_get()
+ *
+ * destroys the devres associated with this phy and invokes phy_destroy
+ * to destroy the phy.
+ */
+void devm_phy_destroy(struct device *dev, struct phy *phy)
+{
+	int r;
+
+	r = devres_destroy(dev, devm_phy_consume, devm_phy_match, phy);
+	dev_WARN_ONCE(dev, r, "couldn't find PHY resource\n");
+}
+EXPORT_SYMBOL_GPL(devm_phy_destroy);
+
+/**
+ * __of_phy_provider_register() - create/register phy provider with the framework
+ * @dev: struct device of the phy provider
+ * @owner: the module owner containing of_xlate
+ * @of_xlate: function pointer to obtain phy instance from phy provider
+ *
+ * Creates struct phy_provider from dev and of_xlate function pointer.
+ * This is used in the case of dt boot for finding the phy instance from
+ * phy provider.
+ */
+struct phy_provider *__of_phy_provider_register(struct device *dev,
+	struct module *owner, struct phy * (*of_xlate)(struct device *dev,
+	struct of_phandle_args *args))
+{
+	struct phy_provider *phy_provider;
+
+	phy_provider = kzalloc(sizeof(*phy_provider), GFP_KERNEL);
+	if (!phy_provider)
+		return ERR_PTR(-ENOMEM);
+
+	phy_provider->dev = dev;
+	phy_provider->owner = owner;
+	phy_provider->of_xlate = of_xlate;
+
+	mutex_lock(&phy_provider_mutex);
+	list_add_tail(&phy_provider->list, &phy_provider_list);
+	mutex_unlock(&phy_provider_mutex);
+
+	return phy_provider;
+}
+EXPORT_SYMBOL_GPL(__of_phy_provider_register);
+
+/**
+ * __devm_of_phy_provider_register() - create/register phy provider with the
+ * framework
+ * @dev: struct device of the phy provider
+ * @owner: the module owner containing of_xlate
+ * @of_xlate: function pointer to obtain phy instance from phy provider
+ *
+ * Creates struct phy_provider from dev and of_xlate function pointer.
+ * This is used in the case of dt boot for finding the phy instance from
+ * phy provider. While at that, it also associates the device with the
+ * phy provider using devres. On driver detach, release function is invoked
+ * on the devres data, then, devres data is freed.
+ */
+struct phy_provider *__devm_of_phy_provider_register(struct device *dev,
+	struct module *owner, struct phy * (*of_xlate)(struct device *dev,
+	struct of_phandle_args *args))
+{
+	struct phy_provider **ptr, *phy_provider;
+
+	ptr = devres_alloc(devm_phy_provider_release, sizeof(*ptr), GFP_KERNEL);
+	if (!ptr)
+		return ERR_PTR(-ENOMEM);
+
+	phy_provider = __of_phy_provider_register(dev, owner, of_xlate);
+	if (!IS_ERR(phy_provider)) {
+		*ptr = phy_provider;
+		devres_add(dev, ptr);
+	} else {
+		devres_free(ptr);
+	}
+
+	return phy_provider;
+}
+EXPORT_SYMBOL_GPL(__devm_of_phy_provider_register);
+
+/**
+ * of_phy_provider_unregister() - unregister phy provider from the framework
+ * @phy_provider: phy provider returned by of_phy_provider_register()
+ *
+ * Removes the phy_provider created using of_phy_provider_register().
+ */
+void of_phy_provider_unregister(struct phy_provider *phy_provider)
+{
+	if (IS_ERR(phy_provider))
+		return;
+
+	mutex_lock(&phy_provider_mutex);
+	list_del(&phy_provider->list);
+	kfree(phy_provider);
+	mutex_unlock(&phy_provider_mutex);
+}
+EXPORT_SYMBOL_GPL(of_phy_provider_unregister);
+
+/**
+ * devm_of_phy_provider_unregister() - remove phy provider from the framework
+ * @dev: struct device of the phy provider
+ *
+ * destroys the devres associated with this phy provider and invokes
+ * of_phy_provider_unregister to unregister the phy provider.
+ */
+void devm_of_phy_provider_unregister(struct device *dev,
+	struct phy_provider *phy_provider) {
+	int r;
+
+	r = devres_destroy(dev, devm_phy_provider_release, devm_phy_match,
+		phy_provider);
+	dev_WARN_ONCE(dev, r, "couldn't find PHY provider device resource\n");
+}
+EXPORT_SYMBOL_GPL(devm_of_phy_provider_unregister);
+
+/**
+ * phy_release() - release the phy
+ * @dev: the dev member within phy
+ *
+ * When the last reference to the device is removed, it is called
+ * from the embedded kobject as release method.
+ */
+static void phy_release(struct device *dev)
+{
+	struct phy *phy;
+
+	phy = to_phy(dev);
+	dev_vdbg(dev, "releasing '%s'\n", dev_name(dev));
+	ida_remove(&phy_ida, phy->id);
+	kfree(phy);
+}
+
+static int __init phy_core_init(void)
+{
+	phy_class = class_create(THIS_MODULE, "phy");
+	if (IS_ERR(phy_class)) {
+		pr_err("failed to create phy class --> %ld\n",
+			PTR_ERR(phy_class));
+		return PTR_ERR(phy_class);
+	}
+
+	phy_class->dev_release = phy_release;
+
+	return 0;
+}
+module_init(phy_core_init);
+
+static void __exit phy_core_exit(void)
+{
+	class_destroy(phy_class);
+}
+module_exit(phy_core_exit);
+
+MODULE_DESCRIPTION("Generic PHY Framework");
+MODULE_AUTHOR("Kishon Vijay Abraham I <kishon@ti.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
new file mode 100644
index 000000000000..6d722695e027
--- /dev/null
+++ b/include/linux/phy/phy.h
@@ -0,0 +1,270 @@
+/*
+ * phy.h -- generic phy header file
+ *
+ * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com
+ *
+ * Author: Kishon Vijay Abraham I <kishon@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __DRIVERS_PHY_H
+#define __DRIVERS_PHY_H
+
+#include <linux/err.h>
+#include <linux/of.h>
+#include <linux/device.h>
+#include <linux/pm_runtime.h>
+
+struct phy;
+
+/**
+ * struct phy_ops - set of function pointers for performing phy operations
+ * @init: operation to be performed for initializing phy
+ * @exit: operation to be performed while exiting
+ * @power_on: powering on the phy
+ * @power_off: powering off the phy
+ * @owner: the module owner containing the ops
+ */
+struct phy_ops {
+	int	(*init)(struct phy *phy);
+	int	(*exit)(struct phy *phy);
+	int	(*power_on)(struct phy *phy);
+	int	(*power_off)(struct phy *phy);
+	struct module *owner;
+};
+
+/**
+ * struct phy - represents the phy device
+ * @dev: phy device
+ * @id: id of the phy device
+ * @ops: function pointers for performing phy operations
+ * @init_data: list of PHY consumers (non-dt only)
+ * @mutex: mutex to protect phy_ops
+ * @init_count: used to protect when the PHY is used by multiple consumers
+ * @power_count: used to protect when the PHY is used by multiple consumers
+ */
+struct phy {
+	struct device		dev;
+	int			id;
+	const struct phy_ops	*ops;
+	struct phy_init_data	*init_data;
+	struct mutex		mutex;
+	int			init_count;
+	int			power_count;
+};
+
+/**
+ * struct phy_provider - represents the phy provider
+ * @dev: phy provider device
+ * @owner: the module owner having of_xlate
+ * @of_xlate: function pointer to obtain phy instance from phy pointer
+ * @list: to maintain a linked list of PHY providers
+ */
+struct phy_provider {
+	struct device		*dev;
+	struct module		*owner;
+	struct list_head	list;
+	struct phy * (*of_xlate)(struct device *dev,
+		struct of_phandle_args *args);
+};
+
+/**
+ * struct phy_consumer - represents the phy consumer
+ * @dev_name: the device name of the controller that will use this PHY device
+ * @port: name given to the consumer port
+ */
+struct phy_consumer {
+	const char *dev_name;
+	const char *port;
+};
+
+/**
+ * struct phy_init_data - contains the list of PHY consumers
+ * @num_consumers: number of consumers for this PHY device
+ * @consumers: list of PHY consumers
+ */
+struct phy_init_data {
+	unsigned int num_consumers;
+	struct phy_consumer *consumers;
+};
+
+#define PHY_CONSUMER(_dev_name, _port)				\
+{								\
+	.dev_name	= _dev_name,				\
+	.port		= _port,				\
+}
+
+#define	to_phy(dev)	(container_of((dev), struct phy, dev))
+
+#define	of_phy_provider_register(dev, xlate)	\
+	__of_phy_provider_register((dev), THIS_MODULE, (xlate))
+
+#define	devm_of_phy_provider_register(dev, xlate)	\
+	__devm_of_phy_provider_register((dev), THIS_MODULE, (xlate))
+
+static inline void phy_set_drvdata(struct phy *phy, void *data)
+{
+	dev_set_drvdata(&phy->dev, data);
+}
+
+static inline void *phy_get_drvdata(struct phy *phy)
+{
+	return dev_get_drvdata(&phy->dev);
+}
+
+#if IS_ENABLED(CONFIG_GENERIC_PHY)
+int phy_pm_runtime_get(struct phy *phy);
+int phy_pm_runtime_get_sync(struct phy *phy);
+int phy_pm_runtime_put(struct phy *phy);
+int phy_pm_runtime_put_sync(struct phy *phy);
+void phy_pm_runtime_allow(struct phy *phy);
+void phy_pm_runtime_forbid(struct phy *phy);
+int phy_init(struct phy *phy);
+int phy_exit(struct phy *phy);
+int phy_power_on(struct phy *phy);
+int phy_power_off(struct phy *phy);
+struct phy *phy_get(struct device *dev, const char *string);
+struct phy *devm_phy_get(struct device *dev, const char *string);
+void phy_put(struct phy *phy);
+void devm_phy_put(struct device *dev, struct phy *phy);
+struct phy *of_phy_simple_xlate(struct device *dev,
+	struct of_phandle_args *args);
+struct phy *phy_create(struct device *dev, const struct phy_ops *ops,
+	struct phy_init_data *init_data);
+struct phy *devm_phy_create(struct device *dev,
+	const struct phy_ops *ops, struct phy_init_data *init_data);
+void phy_destroy(struct phy *phy);
+void devm_phy_destroy(struct device *dev, struct phy *phy);
+struct phy_provider *__of_phy_provider_register(struct device *dev,
+	struct module *owner, struct phy * (*of_xlate)(struct device *dev,
+	struct of_phandle_args *args));
+struct phy_provider *__devm_of_phy_provider_register(struct device *dev,
+	struct module *owner, struct phy * (*of_xlate)(struct device *dev,
+	struct of_phandle_args *args));
+void of_phy_provider_unregister(struct phy_provider *phy_provider);
+void devm_of_phy_provider_unregister(struct device *dev,
+	struct phy_provider *phy_provider);
+#else
+static inline int phy_pm_runtime_get(struct phy *phy)
+{
+	return -ENOSYS;
+}
+
+static inline int phy_pm_runtime_get_sync(struct phy *phy)
+{
+	return -ENOSYS;
+}
+
+static inline int phy_pm_runtime_put(struct phy *phy)
+{
+	return -ENOSYS;
+}
+
+static inline int phy_pm_runtime_put_sync(struct phy *phy)
+{
+	return -ENOSYS;
+}
+
+static inline void phy_pm_runtime_allow(struct phy *phy)
+{
+	return;
+}
+
+static inline void phy_pm_runtime_forbid(struct phy *phy)
+{
+	return;
+}
+
+static inline int phy_init(struct phy *phy)
+{
+	return -ENOSYS;
+}
+
+static inline int phy_exit(struct phy *phy)
+{
+	return -ENOSYS;
+}
+
+static inline int phy_power_on(struct phy *phy)
+{
+	return -ENOSYS;
+}
+
+static inline int phy_power_off(struct phy *phy)
+{
+	return -ENOSYS;
+}
+
+static inline struct phy *phy_get(struct device *dev, const char *string)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static inline struct phy *devm_phy_get(struct device *dev, const char *string)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static inline void phy_put(struct phy *phy)
+{
+}
+
+static inline void devm_phy_put(struct device *dev, struct phy *phy)
+{
+}
+
+static inline struct phy *of_phy_simple_xlate(struct device *dev,
+	struct of_phandle_args *args)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static inline struct phy *phy_create(struct device *dev,
+	const struct phy_ops *ops, struct phy_init_data *init_data)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static inline struct phy *devm_phy_create(struct device *dev,
+	const struct phy_ops *ops, struct phy_init_data *init_data)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static inline void phy_destroy(struct phy *phy)
+{
+}
+
+static inline void devm_phy_destroy(struct device *dev, struct phy *phy)
+{
+}
+
+static inline struct phy_provider *__of_phy_provider_register(
+	struct device *dev, struct module *owner, struct phy * (*of_xlate)(
+	struct device *dev, struct of_phandle_args *args))
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static inline struct phy_provider *__devm_of_phy_provider_register(struct device
+	*dev, struct module *owner, struct phy * (*of_xlate)(struct device *dev,
+	struct of_phandle_args *args))
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static inline void of_phy_provider_unregister(struct phy_provider *phy_provider)
+{
+}
+
+static inline void devm_of_phy_provider_unregister(struct device *dev,
+	struct phy_provider *phy_provider)
+{
+}
+#endif
+
+#endif /* __DRIVERS_PHY_H */
-- 
cgit 


From 5d93d1e76afbe629caf5d995fd7f8ddd6e3d4d01 Mon Sep 17 00:00:00 2001
From: Kishon Vijay Abraham I <kishon@ti.com>
Date: Fri, 27 Sep 2013 11:53:26 +0530
Subject: usb: phy: omap-usb2: use the new generic PHY framework

Used the generic PHY framework API to create the PHY. Now the power off and
power on are done in omap_usb_power_off and omap_usb_power_on respectively.
The omap-usb2 driver is also moved to driver/phy.

However using the old USB PHY library cannot be completely removed
because OTG is intertwined with PHY and moving to the new framework
will break OTG. Once we have a separate OTG state machine, we
can get rid of the USB PHY library.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/phy/Kconfig             |  12 ++
 drivers/phy/Makefile            |   1 +
 drivers/phy/phy-omap-usb2.c     | 309 ++++++++++++++++++++++++++++++++++++++++
 drivers/usb/phy/Kconfig         |  11 --
 drivers/usb/phy/Makefile        |   1 -
 drivers/usb/phy/phy-omap-usb2.c | 272 -----------------------------------
 6 files changed, 322 insertions(+), 284 deletions(-)
 create mode 100644 drivers/phy/phy-omap-usb2.c
 delete mode 100644 drivers/usb/phy/phy-omap-usb2.c

diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index 349bef2e6e4e..38c3477ead4c 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -15,4 +15,16 @@ config GENERIC_PHY
 	  phy users can obtain reference to the PHY. All the users of this
 	  framework should select this config.
 
+config OMAP_USB2
+	tristate "OMAP USB2 PHY Driver"
+	depends on ARCH_OMAP2PLUS
+	select GENERIC_PHY
+	select USB_PHY
+	select OMAP_CONTROL_USB
+	help
+	  Enable this to support the transceiver that is part of SOC. This
+	  driver takes care of all the PHY functionality apart from comparator.
+	  The USB OTG controller communicates with the comparator using this
+	  driver.
+
 endmenu
diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
index 9e9560fbb14d..ed5b088abaee 100644
--- a/drivers/phy/Makefile
+++ b/drivers/phy/Makefile
@@ -3,3 +3,4 @@
 #
 
 obj-$(CONFIG_GENERIC_PHY)	+= phy-core.o
+obj-$(CONFIG_OMAP_USB2)		+= phy-omap-usb2.o
diff --git a/drivers/phy/phy-omap-usb2.c b/drivers/phy/phy-omap-usb2.c
new file mode 100644
index 000000000000..4d7b4e5a9659
--- /dev/null
+++ b/drivers/phy/phy-omap-usb2.c
@@ -0,0 +1,309 @@
+/*
+ * omap-usb2.c - USB PHY, talking to musb controller in OMAP.
+ *
+ * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Author: Kishon Vijay Abraham I <kishon@ti.com>
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/io.h>
+#include <linux/usb/omap_usb.h>
+#include <linux/usb/phy_companion.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/pm_runtime.h>
+#include <linux/delay.h>
+#include <linux/usb/omap_control_usb.h>
+#include <linux/phy/phy.h>
+
+/**
+ * omap_usb2_set_comparator - links the comparator present in the sytem with
+ *	this phy
+ * @comparator - the companion phy(comparator) for this phy
+ *
+ * The phy companion driver should call this API passing the phy_companion
+ * filled with set_vbus and start_srp to be used by usb phy.
+ *
+ * For use by phy companion driver
+ */
+int omap_usb2_set_comparator(struct phy_companion *comparator)
+{
+	struct omap_usb	*phy;
+	struct usb_phy	*x = usb_get_phy(USB_PHY_TYPE_USB2);
+
+	if (IS_ERR(x))
+		return -ENODEV;
+
+	phy = phy_to_omapusb(x);
+	phy->comparator = comparator;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(omap_usb2_set_comparator);
+
+static int omap_usb_set_vbus(struct usb_otg *otg, bool enabled)
+{
+	struct omap_usb *phy = phy_to_omapusb(otg->phy);
+
+	if (!phy->comparator)
+		return -ENODEV;
+
+	return phy->comparator->set_vbus(phy->comparator, enabled);
+}
+
+static int omap_usb_start_srp(struct usb_otg *otg)
+{
+	struct omap_usb *phy = phy_to_omapusb(otg->phy);
+
+	if (!phy->comparator)
+		return -ENODEV;
+
+	return phy->comparator->start_srp(phy->comparator);
+}
+
+static int omap_usb_set_host(struct usb_otg *otg, struct usb_bus *host)
+{
+	struct usb_phy	*phy = otg->phy;
+
+	otg->host = host;
+	if (!host)
+		phy->state = OTG_STATE_UNDEFINED;
+
+	return 0;
+}
+
+static int omap_usb_set_peripheral(struct usb_otg *otg,
+		struct usb_gadget *gadget)
+{
+	struct usb_phy	*phy = otg->phy;
+
+	otg->gadget = gadget;
+	if (!gadget)
+		phy->state = OTG_STATE_UNDEFINED;
+
+	return 0;
+}
+
+static int omap_usb2_suspend(struct usb_phy *x, int suspend)
+{
+	struct omap_usb *phy = phy_to_omapusb(x);
+	int ret;
+
+	if (suspend && !phy->is_suspended) {
+		omap_control_usb_phy_power(phy->control_dev, 0);
+		pm_runtime_put_sync(phy->dev);
+		phy->is_suspended = 1;
+	} else if (!suspend && phy->is_suspended) {
+		ret = pm_runtime_get_sync(phy->dev);
+		if (ret < 0) {
+			dev_err(phy->dev, "get_sync failed with err %d\n", ret);
+			return ret;
+		}
+		omap_control_usb_phy_power(phy->control_dev, 1);
+		phy->is_suspended = 0;
+	}
+
+	return 0;
+}
+
+static int omap_usb_power_off(struct phy *x)
+{
+	struct omap_usb *phy = phy_get_drvdata(x);
+
+	omap_control_usb_phy_power(phy->control_dev, 0);
+
+	return 0;
+}
+
+static int omap_usb_power_on(struct phy *x)
+{
+	struct omap_usb *phy = phy_get_drvdata(x);
+
+	omap_control_usb_phy_power(phy->control_dev, 1);
+
+	return 0;
+}
+
+static struct phy_ops ops = {
+	.power_on	= omap_usb_power_on,
+	.power_off	= omap_usb_power_off,
+	.owner		= THIS_MODULE,
+};
+
+static int omap_usb2_probe(struct platform_device *pdev)
+{
+	struct omap_usb			*phy;
+	struct phy			*generic_phy;
+	struct usb_otg			*otg;
+	struct phy_provider		*phy_provider;
+
+	phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL);
+	if (!phy) {
+		dev_err(&pdev->dev, "unable to allocate memory for USB2 PHY\n");
+		return -ENOMEM;
+	}
+
+	otg = devm_kzalloc(&pdev->dev, sizeof(*otg), GFP_KERNEL);
+	if (!otg) {
+		dev_err(&pdev->dev, "unable to allocate memory for USB OTG\n");
+		return -ENOMEM;
+	}
+
+	phy->dev		= &pdev->dev;
+
+	phy->phy.dev		= phy->dev;
+	phy->phy.label		= "omap-usb2";
+	phy->phy.set_suspend	= omap_usb2_suspend;
+	phy->phy.otg		= otg;
+	phy->phy.type		= USB_PHY_TYPE_USB2;
+
+	phy_provider = devm_of_phy_provider_register(phy->dev,
+			of_phy_simple_xlate);
+	if (IS_ERR(phy_provider))
+		return PTR_ERR(phy_provider);
+
+	phy->control_dev = omap_get_control_dev();
+	if (IS_ERR(phy->control_dev)) {
+		dev_dbg(&pdev->dev, "Failed to get control device\n");
+		return -ENODEV;
+	}
+
+	phy->is_suspended	= 1;
+	omap_control_usb_phy_power(phy->control_dev, 0);
+
+	otg->set_host		= omap_usb_set_host;
+	otg->set_peripheral	= omap_usb_set_peripheral;
+	otg->set_vbus		= omap_usb_set_vbus;
+	otg->start_srp		= omap_usb_start_srp;
+	otg->phy		= &phy->phy;
+
+	platform_set_drvdata(pdev, phy);
+	pm_runtime_enable(phy->dev);
+
+	generic_phy = devm_phy_create(phy->dev, &ops, NULL);
+	if (IS_ERR(generic_phy))
+		return PTR_ERR(generic_phy);
+
+	phy_set_drvdata(generic_phy, phy);
+
+	phy->wkupclk = devm_clk_get(phy->dev, "usb_phy_cm_clk32k");
+	if (IS_ERR(phy->wkupclk)) {
+		dev_err(&pdev->dev, "unable to get usb_phy_cm_clk32k\n");
+		return PTR_ERR(phy->wkupclk);
+	}
+	clk_prepare(phy->wkupclk);
+
+	phy->optclk = devm_clk_get(phy->dev, "usb_otg_ss_refclk960m");
+	if (IS_ERR(phy->optclk))
+		dev_vdbg(&pdev->dev, "unable to get refclk960m\n");
+	else
+		clk_prepare(phy->optclk);
+
+	usb_add_phy_dev(&phy->phy);
+
+	return 0;
+}
+
+static int omap_usb2_remove(struct platform_device *pdev)
+{
+	struct omap_usb	*phy = platform_get_drvdata(pdev);
+
+	clk_unprepare(phy->wkupclk);
+	if (!IS_ERR(phy->optclk))
+		clk_unprepare(phy->optclk);
+	usb_remove_phy(&phy->phy);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_RUNTIME
+
+static int omap_usb2_runtime_suspend(struct device *dev)
+{
+	struct platform_device	*pdev = to_platform_device(dev);
+	struct omap_usb	*phy = platform_get_drvdata(pdev);
+
+	clk_disable(phy->wkupclk);
+	if (!IS_ERR(phy->optclk))
+		clk_disable(phy->optclk);
+
+	return 0;
+}
+
+static int omap_usb2_runtime_resume(struct device *dev)
+{
+	struct platform_device	*pdev = to_platform_device(dev);
+	struct omap_usb	*phy = platform_get_drvdata(pdev);
+	int ret;
+
+	ret = clk_enable(phy->wkupclk);
+	if (ret < 0) {
+		dev_err(phy->dev, "Failed to enable wkupclk %d\n", ret);
+		goto err0;
+	}
+
+	if (!IS_ERR(phy->optclk)) {
+		ret = clk_enable(phy->optclk);
+		if (ret < 0) {
+			dev_err(phy->dev, "Failed to enable optclk %d\n", ret);
+			goto err1;
+		}
+	}
+
+	return 0;
+
+err1:
+	clk_disable(phy->wkupclk);
+
+err0:
+	return ret;
+}
+
+static const struct dev_pm_ops omap_usb2_pm_ops = {
+	SET_RUNTIME_PM_OPS(omap_usb2_runtime_suspend, omap_usb2_runtime_resume,
+		NULL)
+};
+
+#define DEV_PM_OPS     (&omap_usb2_pm_ops)
+#else
+#define DEV_PM_OPS     NULL
+#endif
+
+#ifdef CONFIG_OF
+static const struct of_device_id omap_usb2_id_table[] = {
+	{ .compatible = "ti,omap-usb2" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, omap_usb2_id_table);
+#endif
+
+static struct platform_driver omap_usb2_driver = {
+	.probe		= omap_usb2_probe,
+	.remove		= omap_usb2_remove,
+	.driver		= {
+		.name	= "omap-usb2",
+		.owner	= THIS_MODULE,
+		.pm	= DEV_PM_OPS,
+		.of_match_table = of_match_ptr(omap_usb2_id_table),
+	},
+};
+
+module_platform_driver(omap_usb2_driver);
+
+MODULE_ALIAS("platform: omap_usb2");
+MODULE_AUTHOR("Texas Instruments Inc.");
+MODULE_DESCRIPTION("OMAP USB2 phy driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index 51ffe11cf38a..2ce041109993 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -66,17 +66,6 @@ config OMAP_CONTROL_USB
 	  power on the USB2 PHY is present in OMAP4 and OMAP5. OMAP5 has an
 	  additional register to power on USB3 PHY.
 
-config OMAP_USB2
-	tristate "OMAP USB2 PHY Driver"
-	depends on ARCH_OMAP2PLUS
-	select OMAP_CONTROL_USB
-	select USB_PHY
-	help
-	  Enable this to support the transceiver that is part of SOC. This
-	  driver takes care of all the PHY functionality apart from comparator.
-	  The USB OTG controller communicates with the comparator using this
-	  driver.
-
 config OMAP_USB3
 	tristate "OMAP USB3 PHY Driver"
 	depends on ARCH_OMAP2PLUS || COMPILE_TEST
diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile
index 2135e85f46ed..fa4db0e4bdb9 100644
--- a/drivers/usb/phy/Makefile
+++ b/drivers/usb/phy/Makefile
@@ -15,7 +15,6 @@ obj-$(CONFIG_NOP_USB_XCEIV)		+= phy-generic.o
 obj-$(CONFIG_OMAP_CONTROL_USB)		+= phy-omap-control.o
 obj-$(CONFIG_AM335X_CONTROL_USB)	+= phy-am335x-control.o
 obj-$(CONFIG_AM335X_PHY_USB)		+= phy-am335x.o
-obj-$(CONFIG_OMAP_USB2)			+= phy-omap-usb2.o
 obj-$(CONFIG_OMAP_USB3)			+= phy-omap-usb3.o
 obj-$(CONFIG_SAMSUNG_USBPHY)		+= phy-samsung-usb.o
 obj-$(CONFIG_SAMSUNG_USB2PHY)		+= phy-samsung-usb2.o
diff --git a/drivers/usb/phy/phy-omap-usb2.c b/drivers/usb/phy/phy-omap-usb2.c
deleted file mode 100644
index d266861d24f7..000000000000
--- a/drivers/usb/phy/phy-omap-usb2.c
+++ /dev/null
@@ -1,272 +0,0 @@
-/*
- * omap-usb2.c - USB PHY, talking to musb controller in OMAP.
- *
- * Copyright (C) 2012 Texas Instruments Incorporated - http://www.ti.com
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * Author: Kishon Vijay Abraham I <kishon@ti.com>
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/of.h>
-#include <linux/io.h>
-#include <linux/usb/omap_usb.h>
-#include <linux/usb/phy_companion.h>
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/pm_runtime.h>
-#include <linux/delay.h>
-#include <linux/usb/omap_control_usb.h>
-
-/**
- * omap_usb2_set_comparator - links the comparator present in the sytem with
- *	this phy
- * @comparator - the companion phy(comparator) for this phy
- *
- * The phy companion driver should call this API passing the phy_companion
- * filled with set_vbus and start_srp to be used by usb phy.
- *
- * For use by phy companion driver
- */
-int omap_usb2_set_comparator(struct phy_companion *comparator)
-{
-	struct omap_usb	*phy;
-	struct usb_phy	*x = usb_get_phy(USB_PHY_TYPE_USB2);
-
-	if (IS_ERR(x))
-		return -ENODEV;
-
-	phy = phy_to_omapusb(x);
-	phy->comparator = comparator;
-	return 0;
-}
-EXPORT_SYMBOL_GPL(omap_usb2_set_comparator);
-
-static int omap_usb_set_vbus(struct usb_otg *otg, bool enabled)
-{
-	struct omap_usb *phy = phy_to_omapusb(otg->phy);
-
-	if (!phy->comparator)
-		return -ENODEV;
-
-	return phy->comparator->set_vbus(phy->comparator, enabled);
-}
-
-static int omap_usb_start_srp(struct usb_otg *otg)
-{
-	struct omap_usb *phy = phy_to_omapusb(otg->phy);
-
-	if (!phy->comparator)
-		return -ENODEV;
-
-	return phy->comparator->start_srp(phy->comparator);
-}
-
-static int omap_usb_set_host(struct usb_otg *otg, struct usb_bus *host)
-{
-	struct usb_phy	*phy = otg->phy;
-
-	otg->host = host;
-	if (!host)
-		phy->state = OTG_STATE_UNDEFINED;
-
-	return 0;
-}
-
-static int omap_usb_set_peripheral(struct usb_otg *otg,
-		struct usb_gadget *gadget)
-{
-	struct usb_phy	*phy = otg->phy;
-
-	otg->gadget = gadget;
-	if (!gadget)
-		phy->state = OTG_STATE_UNDEFINED;
-
-	return 0;
-}
-
-static int omap_usb2_suspend(struct usb_phy *x, int suspend)
-{
-	struct omap_usb *phy = phy_to_omapusb(x);
-	int ret;
-
-	if (suspend && !phy->is_suspended) {
-		omap_control_usb_phy_power(phy->control_dev, 0);
-		pm_runtime_put_sync(phy->dev);
-		phy->is_suspended = 1;
-	} else if (!suspend && phy->is_suspended) {
-		ret = pm_runtime_get_sync(phy->dev);
-		if (ret < 0) {
-			dev_err(phy->dev, "get_sync failed with err %d\n", ret);
-			return ret;
-		}
-		omap_control_usb_phy_power(phy->control_dev, 1);
-		phy->is_suspended = 0;
-	}
-
-	return 0;
-}
-
-static int omap_usb2_probe(struct platform_device *pdev)
-{
-	struct omap_usb			*phy;
-	struct usb_otg			*otg;
-
-	phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL);
-	if (!phy) {
-		dev_err(&pdev->dev, "unable to allocate memory for USB2 PHY\n");
-		return -ENOMEM;
-	}
-
-	otg = devm_kzalloc(&pdev->dev, sizeof(*otg), GFP_KERNEL);
-	if (!otg) {
-		dev_err(&pdev->dev, "unable to allocate memory for USB OTG\n");
-		return -ENOMEM;
-	}
-
-	phy->dev		= &pdev->dev;
-
-	phy->phy.dev		= phy->dev;
-	phy->phy.label		= "omap-usb2";
-	phy->phy.set_suspend	= omap_usb2_suspend;
-	phy->phy.otg		= otg;
-	phy->phy.type		= USB_PHY_TYPE_USB2;
-
-	phy->control_dev = omap_get_control_dev();
-	if (IS_ERR(phy->control_dev)) {
-		dev_dbg(&pdev->dev, "Failed to get control device\n");
-		return -ENODEV;
-	}
-
-	phy->is_suspended	= 1;
-	omap_control_usb_phy_power(phy->control_dev, 0);
-
-	otg->set_host		= omap_usb_set_host;
-	otg->set_peripheral	= omap_usb_set_peripheral;
-	otg->set_vbus		= omap_usb_set_vbus;
-	otg->start_srp		= omap_usb_start_srp;
-	otg->phy		= &phy->phy;
-
-	phy->wkupclk = devm_clk_get(phy->dev, "usb_phy_cm_clk32k");
-	if (IS_ERR(phy->wkupclk)) {
-		dev_err(&pdev->dev, "unable to get usb_phy_cm_clk32k\n");
-		return PTR_ERR(phy->wkupclk);
-	}
-	clk_prepare(phy->wkupclk);
-
-	phy->optclk = devm_clk_get(phy->dev, "usb_otg_ss_refclk960m");
-	if (IS_ERR(phy->optclk))
-		dev_vdbg(&pdev->dev, "unable to get refclk960m\n");
-	else
-		clk_prepare(phy->optclk);
-
-	usb_add_phy_dev(&phy->phy);
-
-	platform_set_drvdata(pdev, phy);
-
-	pm_runtime_enable(phy->dev);
-
-	return 0;
-}
-
-static int omap_usb2_remove(struct platform_device *pdev)
-{
-	struct omap_usb	*phy = platform_get_drvdata(pdev);
-
-	clk_unprepare(phy->wkupclk);
-	if (!IS_ERR(phy->optclk))
-		clk_unprepare(phy->optclk);
-	usb_remove_phy(&phy->phy);
-
-	return 0;
-}
-
-#ifdef CONFIG_PM_RUNTIME
-
-static int omap_usb2_runtime_suspend(struct device *dev)
-{
-	struct platform_device	*pdev = to_platform_device(dev);
-	struct omap_usb	*phy = platform_get_drvdata(pdev);
-
-	clk_disable(phy->wkupclk);
-	if (!IS_ERR(phy->optclk))
-		clk_disable(phy->optclk);
-
-	return 0;
-}
-
-static int omap_usb2_runtime_resume(struct device *dev)
-{
-	struct platform_device	*pdev = to_platform_device(dev);
-	struct omap_usb	*phy = platform_get_drvdata(pdev);
-	int ret;
-
-	ret = clk_enable(phy->wkupclk);
-	if (ret < 0) {
-		dev_err(phy->dev, "Failed to enable wkupclk %d\n", ret);
-		goto err0;
-	}
-
-	if (!IS_ERR(phy->optclk)) {
-		ret = clk_enable(phy->optclk);
-		if (ret < 0) {
-			dev_err(phy->dev, "Failed to enable optclk %d\n", ret);
-			goto err1;
-		}
-	}
-
-	return 0;
-
-err1:
-	clk_disable(phy->wkupclk);
-
-err0:
-	return ret;
-}
-
-static const struct dev_pm_ops omap_usb2_pm_ops = {
-	SET_RUNTIME_PM_OPS(omap_usb2_runtime_suspend, omap_usb2_runtime_resume,
-		NULL)
-};
-
-#define DEV_PM_OPS     (&omap_usb2_pm_ops)
-#else
-#define DEV_PM_OPS     NULL
-#endif
-
-#ifdef CONFIG_OF
-static const struct of_device_id omap_usb2_id_table[] = {
-	{ .compatible = "ti,omap-usb2" },
-	{}
-};
-MODULE_DEVICE_TABLE(of, omap_usb2_id_table);
-#endif
-
-static struct platform_driver omap_usb2_driver = {
-	.probe		= omap_usb2_probe,
-	.remove		= omap_usb2_remove,
-	.driver		= {
-		.name	= "omap-usb2",
-		.owner	= THIS_MODULE,
-		.pm	= DEV_PM_OPS,
-		.of_match_table = of_match_ptr(omap_usb2_id_table),
-	},
-};
-
-module_platform_driver(omap_usb2_driver);
-
-MODULE_ALIAS("platform: omap_usb2");
-MODULE_AUTHOR("Texas Instruments Inc.");
-MODULE_DESCRIPTION("OMAP USB2 phy driver");
-MODULE_LICENSE("GPL v2");
-- 
cgit 


From 6747caa76cab1150c60a772cf64f8cd47fa19d39 Mon Sep 17 00:00:00 2001
From: Kishon Vijay Abraham I <kishon@ti.com>
Date: Fri, 27 Sep 2013 11:53:27 +0530
Subject: usb: phy: twl4030: use the new generic PHY framework

Used the generic PHY framework API to create the PHY. For powering on
and powering off the PHY, power_on and power_off ops are used. Once the
MUSB OMAP glue is adapted to the new framework, the suspend and resume
ops of usb phy library will be removed. Also twl4030-usb driver is moved
to drivers/phy/.

However using the old usb phy library cannot be completely removed
because otg is intertwined with phy and moving to the new
framework completely will break otg. Once we have a separate otg state machine,
we can get rid of the usb phy library.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/phy/Kconfig               |  11 +
 drivers/phy/Makefile              |   1 +
 drivers/phy/phy-twl4030-usb.c     | 844 ++++++++++++++++++++++++++++++++++++++
 drivers/usb/phy/Kconfig           |  10 -
 drivers/usb/phy/Makefile          |   1 -
 drivers/usb/phy/phy-twl4030-usb.c | 794 -----------------------------------
 include/linux/i2c/twl.h           |   2 +
 7 files changed, 858 insertions(+), 805 deletions(-)
 create mode 100644 drivers/phy/phy-twl4030-usb.c
 delete mode 100644 drivers/usb/phy/phy-twl4030-usb.c

diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index 38c3477ead4c..ac239aca77ec 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -27,4 +27,15 @@ config OMAP_USB2
 	  The USB OTG controller communicates with the comparator using this
 	  driver.
 
+config TWL4030_USB
+	tristate "TWL4030 USB Transceiver Driver"
+	depends on TWL4030_CORE && REGULATOR_TWL4030 && USB_MUSB_OMAP2PLUS
+	select GENERIC_PHY
+	select USB_PHY
+	help
+	  Enable this to support the USB OTG transceiver on TWL4030
+	  family chips (including the TWL5030 and TPS659x0 devices).
+	  This transceiver supports high and full speed devices plus,
+	  in host mode, low speed.
+
 endmenu
diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
index ed5b088abaee..0dd8a9834548 100644
--- a/drivers/phy/Makefile
+++ b/drivers/phy/Makefile
@@ -4,3 +4,4 @@
 
 obj-$(CONFIG_GENERIC_PHY)	+= phy-core.o
 obj-$(CONFIG_OMAP_USB2)		+= phy-omap-usb2.o
+obj-$(CONFIG_TWL4030_USB)	+= phy-twl4030-usb.o
diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c
new file mode 100644
index 000000000000..d02913f9a6b1
--- /dev/null
+++ b/drivers/phy/phy-twl4030-usb.c
@@ -0,0 +1,844 @@
+/*
+ * twl4030_usb - TWL4030 USB transceiver, talking to OMAP OTG controller
+ *
+ * Copyright (C) 2004-2007 Texas Instruments
+ * Copyright (C) 2008 Nokia Corporation
+ * Contact: Felipe Balbi <felipe.balbi@nokia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Current status:
+ *	- HS USB ULPI mode works.
+ *	- 3-pin mode support may be added in future.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/usb/otg.h>
+#include <linux/phy/phy.h>
+#include <linux/usb/musb-omap.h>
+#include <linux/usb/ulpi.h>
+#include <linux/i2c/twl.h>
+#include <linux/regulator/consumer.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+
+/* Register defines */
+
+#define MCPC_CTRL			0x30
+#define MCPC_CTRL_RTSOL			(1 << 7)
+#define MCPC_CTRL_EXTSWR		(1 << 6)
+#define MCPC_CTRL_EXTSWC		(1 << 5)
+#define MCPC_CTRL_VOICESW		(1 << 4)
+#define MCPC_CTRL_OUT64K		(1 << 3)
+#define MCPC_CTRL_RTSCTSSW		(1 << 2)
+#define MCPC_CTRL_HS_UART		(1 << 0)
+
+#define MCPC_IO_CTRL			0x33
+#define MCPC_IO_CTRL_MICBIASEN		(1 << 5)
+#define MCPC_IO_CTRL_CTS_NPU		(1 << 4)
+#define MCPC_IO_CTRL_RXD_PU		(1 << 3)
+#define MCPC_IO_CTRL_TXDTYP		(1 << 2)
+#define MCPC_IO_CTRL_CTSTYP		(1 << 1)
+#define MCPC_IO_CTRL_RTSTYP		(1 << 0)
+
+#define MCPC_CTRL2			0x36
+#define MCPC_CTRL2_MCPC_CK_EN		(1 << 0)
+
+#define OTHER_FUNC_CTRL			0x80
+#define OTHER_FUNC_CTRL_BDIS_ACON_EN	(1 << 4)
+#define OTHER_FUNC_CTRL_FIVEWIRE_MODE	(1 << 2)
+
+#define OTHER_IFC_CTRL			0x83
+#define OTHER_IFC_CTRL_OE_INT_EN	(1 << 6)
+#define OTHER_IFC_CTRL_CEA2011_MODE	(1 << 5)
+#define OTHER_IFC_CTRL_FSLSSERIALMODE_4PIN	(1 << 4)
+#define OTHER_IFC_CTRL_HIZ_ULPI_60MHZ_OUT	(1 << 3)
+#define OTHER_IFC_CTRL_HIZ_ULPI		(1 << 2)
+#define OTHER_IFC_CTRL_ALT_INT_REROUTE	(1 << 0)
+
+#define OTHER_INT_EN_RISE		0x86
+#define OTHER_INT_EN_FALL		0x89
+#define OTHER_INT_STS			0x8C
+#define OTHER_INT_LATCH			0x8D
+#define OTHER_INT_VB_SESS_VLD		(1 << 7)
+#define OTHER_INT_DM_HI			(1 << 6) /* not valid for "latch" reg */
+#define OTHER_INT_DP_HI			(1 << 5) /* not valid for "latch" reg */
+#define OTHER_INT_BDIS_ACON		(1 << 3) /* not valid for "fall" regs */
+#define OTHER_INT_MANU			(1 << 1)
+#define OTHER_INT_ABNORMAL_STRESS	(1 << 0)
+
+#define ID_STATUS			0x96
+#define ID_RES_FLOAT			(1 << 4)
+#define ID_RES_440K			(1 << 3)
+#define ID_RES_200K			(1 << 2)
+#define ID_RES_102K			(1 << 1)
+#define ID_RES_GND			(1 << 0)
+
+#define POWER_CTRL			0xAC
+#define POWER_CTRL_OTG_ENAB		(1 << 5)
+
+#define OTHER_IFC_CTRL2			0xAF
+#define OTHER_IFC_CTRL2_ULPI_STP_LOW	(1 << 4)
+#define OTHER_IFC_CTRL2_ULPI_TXEN_POL	(1 << 3)
+#define OTHER_IFC_CTRL2_ULPI_4PIN_2430	(1 << 2)
+#define OTHER_IFC_CTRL2_USB_INT_OUTSEL_MASK	(3 << 0) /* bits 0 and 1 */
+#define OTHER_IFC_CTRL2_USB_INT_OUTSEL_INT1N	(0 << 0)
+#define OTHER_IFC_CTRL2_USB_INT_OUTSEL_INT2N	(1 << 0)
+
+#define REG_CTRL_EN			0xB2
+#define REG_CTRL_ERROR			0xB5
+#define ULPI_I2C_CONFLICT_INTEN		(1 << 0)
+
+#define OTHER_FUNC_CTRL2		0xB8
+#define OTHER_FUNC_CTRL2_VBAT_TIMER_EN	(1 << 0)
+
+/* following registers do not have separate _clr and _set registers */
+#define VBUS_DEBOUNCE			0xC0
+#define ID_DEBOUNCE			0xC1
+#define VBAT_TIMER			0xD3
+#define PHY_PWR_CTRL			0xFD
+#define PHY_PWR_PHYPWD			(1 << 0)
+#define PHY_CLK_CTRL			0xFE
+#define PHY_CLK_CTRL_CLOCKGATING_EN	(1 << 2)
+#define PHY_CLK_CTRL_CLK32K_EN		(1 << 1)
+#define REQ_PHY_DPLL_CLK		(1 << 0)
+#define PHY_CLK_CTRL_STS		0xFF
+#define PHY_DPLL_CLK			(1 << 0)
+
+/* In module TWL_MODULE_PM_MASTER */
+#define STS_HW_CONDITIONS		0x0F
+
+/* In module TWL_MODULE_PM_RECEIVER */
+#define VUSB_DEDICATED1			0x7D
+#define VUSB_DEDICATED2			0x7E
+#define VUSB1V5_DEV_GRP			0x71
+#define VUSB1V5_TYPE			0x72
+#define VUSB1V5_REMAP			0x73
+#define VUSB1V8_DEV_GRP			0x74
+#define VUSB1V8_TYPE			0x75
+#define VUSB1V8_REMAP			0x76
+#define VUSB3V1_DEV_GRP			0x77
+#define VUSB3V1_TYPE			0x78
+#define VUSB3V1_REMAP			0x79
+
+/* In module TWL4030_MODULE_INTBR */
+#define PMBR1				0x0D
+#define GPIO_USB_4PIN_ULPI_2430C	(3 << 0)
+
+struct twl4030_usb {
+	struct usb_phy		phy;
+	struct device		*dev;
+
+	/* TWL4030 internal USB regulator supplies */
+	struct regulator	*usb1v5;
+	struct regulator	*usb1v8;
+	struct regulator	*usb3v1;
+
+	/* for vbus reporting with irqs disabled */
+	spinlock_t		lock;
+
+	/* pin configuration */
+	enum twl4030_usb_mode	usb_mode;
+
+	int			irq;
+	enum omap_musb_vbus_id_status linkstat;
+	bool			vbus_supplied;
+	u8			asleep;
+	bool			irq_enabled;
+
+	struct delayed_work	id_workaround_work;
+};
+
+/* internal define on top of container_of */
+#define phy_to_twl(x)		container_of((x), struct twl4030_usb, phy)
+
+/*-------------------------------------------------------------------------*/
+
+static int twl4030_i2c_write_u8_verify(struct twl4030_usb *twl,
+		u8 module, u8 data, u8 address)
+{
+	u8 check;
+
+	if ((twl_i2c_write_u8(module, data, address) >= 0) &&
+	    (twl_i2c_read_u8(module, &check, address) >= 0) &&
+						(check == data))
+		return 0;
+	dev_dbg(twl->dev, "Write%d[%d,0x%x] wrote %02x but read %02x\n",
+			1, module, address, check, data);
+
+	/* Failed once: Try again */
+	if ((twl_i2c_write_u8(module, data, address) >= 0) &&
+	    (twl_i2c_read_u8(module, &check, address) >= 0) &&
+						(check == data))
+		return 0;
+	dev_dbg(twl->dev, "Write%d[%d,0x%x] wrote %02x but read %02x\n",
+			2, module, address, check, data);
+
+	/* Failed again: Return error */
+	return -EBUSY;
+}
+
+#define twl4030_usb_write_verify(twl, address, data)	\
+	twl4030_i2c_write_u8_verify(twl, TWL_MODULE_USB, (data), (address))
+
+static inline int twl4030_usb_write(struct twl4030_usb *twl,
+		u8 address, u8 data)
+{
+	int ret = 0;
+
+	ret = twl_i2c_write_u8(TWL_MODULE_USB, data, address);
+	if (ret < 0)
+		dev_dbg(twl->dev,
+			"TWL4030:USB:Write[0x%x] Error %d\n", address, ret);
+	return ret;
+}
+
+static inline int twl4030_readb(struct twl4030_usb *twl, u8 module, u8 address)
+{
+	u8 data;
+	int ret = 0;
+
+	ret = twl_i2c_read_u8(module, &data, address);
+	if (ret >= 0)
+		ret = data;
+	else
+		dev_dbg(twl->dev,
+			"TWL4030:readb[0x%x,0x%x] Error %d\n",
+					module, address, ret);
+
+	return ret;
+}
+
+static inline int twl4030_usb_read(struct twl4030_usb *twl, u8 address)
+{
+	return twl4030_readb(twl, TWL_MODULE_USB, address);
+}
+
+/*-------------------------------------------------------------------------*/
+
+static inline int
+twl4030_usb_set_bits(struct twl4030_usb *twl, u8 reg, u8 bits)
+{
+	return twl4030_usb_write(twl, ULPI_SET(reg), bits);
+}
+
+static inline int
+twl4030_usb_clear_bits(struct twl4030_usb *twl, u8 reg, u8 bits)
+{
+	return twl4030_usb_write(twl, ULPI_CLR(reg), bits);
+}
+
+/*-------------------------------------------------------------------------*/
+
+static bool twl4030_is_driving_vbus(struct twl4030_usb *twl)
+{
+	int ret;
+
+	ret = twl4030_usb_read(twl, PHY_CLK_CTRL_STS);
+	if (ret < 0 || !(ret & PHY_DPLL_CLK))
+		/*
+		 * if clocks are off, registers are not updated,
+		 * but we can assume we don't drive VBUS in this case
+		 */
+		return false;
+
+	ret = twl4030_usb_read(twl, ULPI_OTG_CTRL);
+	if (ret < 0)
+		return false;
+
+	return (ret & (ULPI_OTG_DRVVBUS | ULPI_OTG_CHRGVBUS)) ? true : false;
+}
+
+static enum omap_musb_vbus_id_status
+	twl4030_usb_linkstat(struct twl4030_usb *twl)
+{
+	int	status;
+	enum omap_musb_vbus_id_status linkstat = OMAP_MUSB_UNKNOWN;
+
+	twl->vbus_supplied = false;
+
+	/*
+	 * For ID/VBUS sensing, see manual section 15.4.8 ...
+	 * except when using only battery backup power, two
+	 * comparators produce VBUS_PRES and ID_PRES signals,
+	 * which don't match docs elsewhere.  But ... BIT(7)
+	 * and BIT(2) of STS_HW_CONDITIONS, respectively, do
+	 * seem to match up.  If either is true the USB_PRES
+	 * signal is active, the OTG module is activated, and
+	 * its interrupt may be raised (may wake the system).
+	 */
+	status = twl4030_readb(twl, TWL_MODULE_PM_MASTER, STS_HW_CONDITIONS);
+	if (status < 0)
+		dev_err(twl->dev, "USB link status err %d\n", status);
+	else if (status & (BIT(7) | BIT(2))) {
+		if (status & BIT(7)) {
+			if (twl4030_is_driving_vbus(twl))
+				status &= ~BIT(7);
+			else
+				twl->vbus_supplied = true;
+		}
+
+		if (status & BIT(2))
+			linkstat = OMAP_MUSB_ID_GROUND;
+		else if (status & BIT(7))
+			linkstat = OMAP_MUSB_VBUS_VALID;
+		else
+			linkstat = OMAP_MUSB_VBUS_OFF;
+	} else {
+		if (twl->linkstat != OMAP_MUSB_UNKNOWN)
+			linkstat = OMAP_MUSB_VBUS_OFF;
+	}
+
+	dev_dbg(twl->dev, "HW_CONDITIONS 0x%02x/%d; link %d\n",
+			status, status, linkstat);
+
+	/* REVISIT this assumes host and peripheral controllers
+	 * are registered, and that both are active...
+	 */
+
+	return linkstat;
+}
+
+static void twl4030_usb_set_mode(struct twl4030_usb *twl, int mode)
+{
+	twl->usb_mode = mode;
+
+	switch (mode) {
+	case T2_USB_MODE_ULPI:
+		twl4030_usb_clear_bits(twl, ULPI_IFC_CTRL,
+					ULPI_IFC_CTRL_CARKITMODE);
+		twl4030_usb_set_bits(twl, POWER_CTRL, POWER_CTRL_OTG_ENAB);
+		twl4030_usb_clear_bits(twl, ULPI_FUNC_CTRL,
+					ULPI_FUNC_CTRL_XCVRSEL_MASK |
+					ULPI_FUNC_CTRL_OPMODE_MASK);
+		break;
+	case -1:
+		/* FIXME: power on defaults */
+		break;
+	default:
+		dev_err(twl->dev, "unsupported T2 transceiver mode %d\n",
+				mode);
+		break;
+	};
+}
+
+static void twl4030_i2c_access(struct twl4030_usb *twl, int on)
+{
+	unsigned long timeout;
+	int val = twl4030_usb_read(twl, PHY_CLK_CTRL);
+
+	if (val >= 0) {
+		if (on) {
+			/* enable DPLL to access PHY registers over I2C */
+			val |= REQ_PHY_DPLL_CLK;
+			WARN_ON(twl4030_usb_write_verify(twl, PHY_CLK_CTRL,
+						(u8)val) < 0);
+
+			timeout = jiffies + HZ;
+			while (!(twl4030_usb_read(twl, PHY_CLK_CTRL_STS) &
+							PHY_DPLL_CLK)
+				&& time_before(jiffies, timeout))
+					udelay(10);
+			if (!(twl4030_usb_read(twl, PHY_CLK_CTRL_STS) &
+							PHY_DPLL_CLK))
+				dev_err(twl->dev, "Timeout setting T2 HSUSB "
+						"PHY DPLL clock\n");
+		} else {
+			/* let ULPI control the DPLL clock */
+			val &= ~REQ_PHY_DPLL_CLK;
+			WARN_ON(twl4030_usb_write_verify(twl, PHY_CLK_CTRL,
+						(u8)val) < 0);
+		}
+	}
+}
+
+static void __twl4030_phy_power(struct twl4030_usb *twl, int on)
+{
+	u8 pwr = twl4030_usb_read(twl, PHY_PWR_CTRL);
+
+	if (on)
+		pwr &= ~PHY_PWR_PHYPWD;
+	else
+		pwr |= PHY_PWR_PHYPWD;
+
+	WARN_ON(twl4030_usb_write_verify(twl, PHY_PWR_CTRL, pwr) < 0);
+}
+
+static void twl4030_phy_power(struct twl4030_usb *twl, int on)
+{
+	int ret;
+
+	if (on) {
+		ret = regulator_enable(twl->usb3v1);
+		if (ret)
+			dev_err(twl->dev, "Failed to enable usb3v1\n");
+
+		ret = regulator_enable(twl->usb1v8);
+		if (ret)
+			dev_err(twl->dev, "Failed to enable usb1v8\n");
+
+		/*
+		 * Disabling usb3v1 regulator (= writing 0 to VUSB3V1_DEV_GRP
+		 * in twl4030) resets the VUSB_DEDICATED2 register. This reset
+		 * enables VUSB3V1_SLEEP bit that remaps usb3v1 ACTIVE state to
+		 * SLEEP. We work around this by clearing the bit after usv3v1
+		 * is re-activated. This ensures that VUSB3V1 is really active.
+		 */
+		twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB_DEDICATED2);
+
+		ret = regulator_enable(twl->usb1v5);
+		if (ret)
+			dev_err(twl->dev, "Failed to enable usb1v5\n");
+
+		__twl4030_phy_power(twl, 1);
+		twl4030_usb_write(twl, PHY_CLK_CTRL,
+				  twl4030_usb_read(twl, PHY_CLK_CTRL) |
+					(PHY_CLK_CTRL_CLOCKGATING_EN |
+						PHY_CLK_CTRL_CLK32K_EN));
+	} else {
+		__twl4030_phy_power(twl, 0);
+		regulator_disable(twl->usb1v5);
+		regulator_disable(twl->usb1v8);
+		regulator_disable(twl->usb3v1);
+	}
+}
+
+static void twl4030_phy_suspend(struct twl4030_usb *twl, int controller_off)
+{
+	if (twl->asleep)
+		return;
+
+	twl4030_phy_power(twl, 0);
+	twl->asleep = 1;
+	dev_dbg(twl->dev, "%s\n", __func__);
+}
+
+static int twl4030_phy_power_off(struct phy *phy)
+{
+	struct twl4030_usb *twl = phy_get_drvdata(phy);
+
+	twl4030_phy_suspend(twl, 0);
+	return 0;
+}
+
+static void __twl4030_phy_resume(struct twl4030_usb *twl)
+{
+	twl4030_phy_power(twl, 1);
+	twl4030_i2c_access(twl, 1);
+	twl4030_usb_set_mode(twl, twl->usb_mode);
+	if (twl->usb_mode == T2_USB_MODE_ULPI)
+		twl4030_i2c_access(twl, 0);
+}
+
+static void twl4030_phy_resume(struct twl4030_usb *twl)
+{
+	if (!twl->asleep)
+		return;
+	__twl4030_phy_resume(twl);
+	twl->asleep = 0;
+	dev_dbg(twl->dev, "%s\n", __func__);
+
+	/*
+	 * XXX When VBUS gets driven after musb goes to A mode,
+	 * ID_PRES related interrupts no longer arrive, why?
+	 * Register itself is updated fine though, so we must poll.
+	 */
+	if (twl->linkstat == OMAP_MUSB_ID_GROUND) {
+		cancel_delayed_work(&twl->id_workaround_work);
+		schedule_delayed_work(&twl->id_workaround_work, HZ);
+	}
+}
+
+static int twl4030_phy_power_on(struct phy *phy)
+{
+	struct twl4030_usb *twl = phy_get_drvdata(phy);
+
+	twl4030_phy_resume(twl);
+	return 0;
+}
+
+static int twl4030_usb_ldo_init(struct twl4030_usb *twl)
+{
+	/* Enable writing to power configuration registers */
+	twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG1,
+			 TWL4030_PM_MASTER_PROTECT_KEY);
+
+	twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG2,
+			 TWL4030_PM_MASTER_PROTECT_KEY);
+
+	/* Keep VUSB3V1 LDO in sleep state until VBUS/ID change detected*/
+	/*twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB_DEDICATED2);*/
+
+	/* input to VUSB3V1 LDO is from VBAT, not VBUS */
+	twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0x14, VUSB_DEDICATED1);
+
+	/* Initialize 3.1V regulator */
+	twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB3V1_DEV_GRP);
+
+	twl->usb3v1 = devm_regulator_get(twl->dev, "usb3v1");
+	if (IS_ERR(twl->usb3v1))
+		return -ENODEV;
+
+	twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB3V1_TYPE);
+
+	/* Initialize 1.5V regulator */
+	twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB1V5_DEV_GRP);
+
+	twl->usb1v5 = devm_regulator_get(twl->dev, "usb1v5");
+	if (IS_ERR(twl->usb1v5))
+		return -ENODEV;
+
+	twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB1V5_TYPE);
+
+	/* Initialize 1.8V regulator */
+	twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB1V8_DEV_GRP);
+
+	twl->usb1v8 = devm_regulator_get(twl->dev, "usb1v8");
+	if (IS_ERR(twl->usb1v8))
+		return -ENODEV;
+
+	twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB1V8_TYPE);
+
+	/* disable access to power configuration registers */
+	twl_i2c_write_u8(TWL_MODULE_PM_MASTER, 0,
+			 TWL4030_PM_MASTER_PROTECT_KEY);
+
+	return 0;
+}
+
+static ssize_t twl4030_usb_vbus_show(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct twl4030_usb *twl = dev_get_drvdata(dev);
+	unsigned long flags;
+	int ret = -EINVAL;
+
+	spin_lock_irqsave(&twl->lock, flags);
+	ret = sprintf(buf, "%s\n",
+			twl->vbus_supplied ? "on" : "off");
+	spin_unlock_irqrestore(&twl->lock, flags);
+
+	return ret;
+}
+static DEVICE_ATTR(vbus, 0444, twl4030_usb_vbus_show, NULL);
+
+static irqreturn_t twl4030_usb_irq(int irq, void *_twl)
+{
+	struct twl4030_usb *twl = _twl;
+	enum omap_musb_vbus_id_status status;
+	bool status_changed = false;
+
+	status = twl4030_usb_linkstat(twl);
+
+	spin_lock_irq(&twl->lock);
+	if (status >= 0 && status != twl->linkstat) {
+		twl->linkstat = status;
+		status_changed = true;
+	}
+	spin_unlock_irq(&twl->lock);
+
+	if (status_changed) {
+		/* FIXME add a set_power() method so that B-devices can
+		 * configure the charger appropriately.  It's not always
+		 * correct to consume VBUS power, and how much current to
+		 * consume is a function of the USB configuration chosen
+		 * by the host.
+		 *
+		 * REVISIT usb_gadget_vbus_connect(...) as needed, ditto
+		 * its disconnect() sibling, when changing to/from the
+		 * USB_LINK_VBUS state.  musb_hdrc won't care until it
+		 * starts to handle softconnect right.
+		 */
+		omap_musb_mailbox(status);
+	}
+	sysfs_notify(&twl->dev->kobj, NULL, "vbus");
+
+	return IRQ_HANDLED;
+}
+
+static void twl4030_id_workaround_work(struct work_struct *work)
+{
+	struct twl4030_usb *twl = container_of(work, struct twl4030_usb,
+		id_workaround_work.work);
+	enum omap_musb_vbus_id_status status;
+	bool status_changed = false;
+
+	status = twl4030_usb_linkstat(twl);
+
+	spin_lock_irq(&twl->lock);
+	if (status >= 0 && status != twl->linkstat) {
+		twl->linkstat = status;
+		status_changed = true;
+	}
+	spin_unlock_irq(&twl->lock);
+
+	if (status_changed) {
+		dev_dbg(twl->dev, "handle missing status change to %d\n",
+				status);
+		omap_musb_mailbox(status);
+	}
+
+	/* don't schedule during sleep - irq works right then */
+	if (status == OMAP_MUSB_ID_GROUND && !twl->asleep) {
+		cancel_delayed_work(&twl->id_workaround_work);
+		schedule_delayed_work(&twl->id_workaround_work, HZ);
+	}
+}
+
+static int twl4030_usb_phy_init(struct usb_phy *phy)
+{
+	struct twl4030_usb *twl = phy_to_twl(phy);
+	enum omap_musb_vbus_id_status status;
+
+	/*
+	 * Start in sleep state, we'll get called through set_suspend()
+	 * callback when musb is runtime resumed and it's time to start.
+	 */
+	__twl4030_phy_power(twl, 0);
+	twl->asleep = 1;
+
+	status = twl4030_usb_linkstat(twl);
+	twl->linkstat = status;
+
+	if (status == OMAP_MUSB_ID_GROUND || status == OMAP_MUSB_VBUS_VALID) {
+		omap_musb_mailbox(twl->linkstat);
+		twl4030_phy_resume(twl);
+	}
+
+	sysfs_notify(&twl->dev->kobj, NULL, "vbus");
+	return 0;
+}
+
+static int twl4030_phy_init(struct phy *phy)
+{
+	struct twl4030_usb *twl = phy_get_drvdata(phy);
+
+	return twl4030_usb_phy_init(&twl->phy);
+}
+
+static int twl4030_set_suspend(struct usb_phy *x, int suspend)
+{
+	struct twl4030_usb *twl = phy_to_twl(x);
+
+	if (suspend)
+		twl4030_phy_suspend(twl, 1);
+	else
+		twl4030_phy_resume(twl);
+
+	return 0;
+}
+
+static int twl4030_set_peripheral(struct usb_otg *otg,
+					struct usb_gadget *gadget)
+{
+	if (!otg)
+		return -ENODEV;
+
+	otg->gadget = gadget;
+	if (!gadget)
+		otg->phy->state = OTG_STATE_UNDEFINED;
+
+	return 0;
+}
+
+static int twl4030_set_host(struct usb_otg *otg, struct usb_bus *host)
+{
+	if (!otg)
+		return -ENODEV;
+
+	otg->host = host;
+	if (!host)
+		otg->phy->state = OTG_STATE_UNDEFINED;
+
+	return 0;
+}
+
+static const struct phy_ops ops = {
+	.init		= twl4030_phy_init,
+	.power_on	= twl4030_phy_power_on,
+	.power_off	= twl4030_phy_power_off,
+	.owner		= THIS_MODULE,
+};
+
+static int twl4030_usb_probe(struct platform_device *pdev)
+{
+	struct twl4030_usb_data *pdata = dev_get_platdata(&pdev->dev);
+	struct twl4030_usb	*twl;
+	struct phy		*phy;
+	int			status, err;
+	struct usb_otg		*otg;
+	struct device_node	*np = pdev->dev.of_node;
+	struct phy_provider	*phy_provider;
+	struct phy_init_data	*init_data = NULL;
+
+	twl = devm_kzalloc(&pdev->dev, sizeof *twl, GFP_KERNEL);
+	if (!twl)
+		return -ENOMEM;
+
+	if (np)
+		of_property_read_u32(np, "usb_mode",
+				(enum twl4030_usb_mode *)&twl->usb_mode);
+	else if (pdata) {
+		twl->usb_mode = pdata->usb_mode;
+		init_data = pdata->init_data;
+	} else {
+		dev_err(&pdev->dev, "twl4030 initialized without pdata\n");
+		return -EINVAL;
+	}
+
+	otg = devm_kzalloc(&pdev->dev, sizeof *otg, GFP_KERNEL);
+	if (!otg)
+		return -ENOMEM;
+
+	twl->dev		= &pdev->dev;
+	twl->irq		= platform_get_irq(pdev, 0);
+	twl->vbus_supplied	= false;
+	twl->asleep		= 1;
+	twl->linkstat		= OMAP_MUSB_UNKNOWN;
+
+	twl->phy.dev		= twl->dev;
+	twl->phy.label		= "twl4030";
+	twl->phy.otg		= otg;
+	twl->phy.type		= USB_PHY_TYPE_USB2;
+	twl->phy.set_suspend	= twl4030_set_suspend;
+	twl->phy.init		= twl4030_usb_phy_init;
+
+	otg->phy		= &twl->phy;
+	otg->set_host		= twl4030_set_host;
+	otg->set_peripheral	= twl4030_set_peripheral;
+
+	phy_provider = devm_of_phy_provider_register(twl->dev,
+		of_phy_simple_xlate);
+	if (IS_ERR(phy_provider))
+		return PTR_ERR(phy_provider);
+
+	phy = devm_phy_create(twl->dev, &ops, init_data);
+	if (IS_ERR(phy)) {
+		dev_dbg(&pdev->dev, "Failed to create PHY\n");
+		return PTR_ERR(phy);
+	}
+
+	phy_set_drvdata(phy, twl);
+
+	/* init spinlock for workqueue */
+	spin_lock_init(&twl->lock);
+
+	INIT_DELAYED_WORK(&twl->id_workaround_work, twl4030_id_workaround_work);
+
+	err = twl4030_usb_ldo_init(twl);
+	if (err) {
+		dev_err(&pdev->dev, "ldo init failed\n");
+		return err;
+	}
+	usb_add_phy_dev(&twl->phy);
+
+	platform_set_drvdata(pdev, twl);
+	if (device_create_file(&pdev->dev, &dev_attr_vbus))
+		dev_warn(&pdev->dev, "could not create sysfs file\n");
+
+	/* Our job is to use irqs and status from the power module
+	 * to keep the transceiver disabled when nothing's connected.
+	 *
+	 * FIXME we actually shouldn't start enabling it until the
+	 * USB controller drivers have said they're ready, by calling
+	 * set_host() and/or set_peripheral() ... OTG_capable boards
+	 * need both handles, otherwise just one suffices.
+	 */
+	twl->irq_enabled = true;
+	status = devm_request_threaded_irq(twl->dev, twl->irq, NULL,
+			twl4030_usb_irq, IRQF_TRIGGER_FALLING |
+			IRQF_TRIGGER_RISING | IRQF_ONESHOT, "twl4030_usb", twl);
+	if (status < 0) {
+		dev_dbg(&pdev->dev, "can't get IRQ %d, err %d\n",
+			twl->irq, status);
+		return status;
+	}
+
+	dev_info(&pdev->dev, "Initialized TWL4030 USB module\n");
+	return 0;
+}
+
+static int twl4030_usb_remove(struct platform_device *pdev)
+{
+	struct twl4030_usb *twl = platform_get_drvdata(pdev);
+	int val;
+
+	cancel_delayed_work(&twl->id_workaround_work);
+	device_remove_file(twl->dev, &dev_attr_vbus);
+
+	/* set transceiver mode to power on defaults */
+	twl4030_usb_set_mode(twl, -1);
+
+	/* autogate 60MHz ULPI clock,
+	 * clear dpll clock request for i2c access,
+	 * disable 32KHz
+	 */
+	val = twl4030_usb_read(twl, PHY_CLK_CTRL);
+	if (val >= 0) {
+		val |= PHY_CLK_CTRL_CLOCKGATING_EN;
+		val &= ~(PHY_CLK_CTRL_CLK32K_EN | REQ_PHY_DPLL_CLK);
+		twl4030_usb_write(twl, PHY_CLK_CTRL, (u8)val);
+	}
+
+	/* disable complete OTG block */
+	twl4030_usb_clear_bits(twl, POWER_CTRL, POWER_CTRL_OTG_ENAB);
+
+	if (!twl->asleep)
+		twl4030_phy_power(twl, 0);
+
+	return 0;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id twl4030_usb_id_table[] = {
+	{ .compatible = "ti,twl4030-usb" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, twl4030_usb_id_table);
+#endif
+
+static struct platform_driver twl4030_usb_driver = {
+	.probe		= twl4030_usb_probe,
+	.remove		= twl4030_usb_remove,
+	.driver		= {
+		.name	= "twl4030_usb",
+		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(twl4030_usb_id_table),
+	},
+};
+
+static int __init twl4030_usb_init(void)
+{
+	return platform_driver_register(&twl4030_usb_driver);
+}
+subsys_initcall(twl4030_usb_init);
+
+static void __exit twl4030_usb_exit(void)
+{
+	platform_driver_unregister(&twl4030_usb_driver);
+}
+module_exit(twl4030_usb_exit);
+
+MODULE_ALIAS("platform:twl4030_usb");
+MODULE_AUTHOR("Texas Instruments, Inc, Nokia Corporation");
+MODULE_DESCRIPTION("TWL4030 USB transceiver driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index 2ce041109993..64b8bef1919e 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -113,16 +113,6 @@ config SAMSUNG_USB3PHY
 	  Enable this to support Samsung USB 3.0 (Super Speed) phy controller
 	  for samsung SoCs.
 
-config TWL4030_USB
-	tristate "TWL4030 USB Transceiver Driver"
-	depends on TWL4030_CORE && REGULATOR_TWL4030 && USB_MUSB_OMAP2PLUS
-	select USB_PHY
-	help
-	  Enable this to support the USB OTG transceiver on TWL4030
-	  family chips (including the TWL5030 and TPS659x0 devices).
-	  This transceiver supports high and full speed devices plus,
-	  in host mode, low speed.
-
 config TWL6030_USB
 	tristate "TWL6030 USB Transceiver Driver"
 	depends on TWL4030_CORE && OMAP_USB2 && USB_MUSB_OMAP2PLUS
diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile
index fa4db0e4bdb9..9c3736109c2c 100644
--- a/drivers/usb/phy/Makefile
+++ b/drivers/usb/phy/Makefile
@@ -19,7 +19,6 @@ obj-$(CONFIG_OMAP_USB3)			+= phy-omap-usb3.o
 obj-$(CONFIG_SAMSUNG_USBPHY)		+= phy-samsung-usb.o
 obj-$(CONFIG_SAMSUNG_USB2PHY)		+= phy-samsung-usb2.o
 obj-$(CONFIG_SAMSUNG_USB3PHY)		+= phy-samsung-usb3.o
-obj-$(CONFIG_TWL4030_USB)		+= phy-twl4030-usb.o
 obj-$(CONFIG_TWL6030_USB)		+= phy-twl6030-usb.o
 obj-$(CONFIG_USB_EHCI_TEGRA)		+= phy-tegra-usb.o
 obj-$(CONFIG_USB_GPIO_VBUS)		+= phy-gpio-vbus-usb.o
diff --git a/drivers/usb/phy/phy-twl4030-usb.c b/drivers/usb/phy/phy-twl4030-usb.c
deleted file mode 100644
index 90730c8762b8..000000000000
--- a/drivers/usb/phy/phy-twl4030-usb.c
+++ /dev/null
@@ -1,794 +0,0 @@
-/*
- * twl4030_usb - TWL4030 USB transceiver, talking to OMAP OTG controller
- *
- * Copyright (C) 2004-2007 Texas Instruments
- * Copyright (C) 2008 Nokia Corporation
- * Contact: Felipe Balbi <felipe.balbi@nokia.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Current status:
- *	- HS USB ULPI mode works.
- *	- 3-pin mode support may be added in future.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/platform_device.h>
-#include <linux/spinlock.h>
-#include <linux/workqueue.h>
-#include <linux/io.h>
-#include <linux/delay.h>
-#include <linux/usb/otg.h>
-#include <linux/usb/musb-omap.h>
-#include <linux/usb/ulpi.h>
-#include <linux/i2c/twl.h>
-#include <linux/regulator/consumer.h>
-#include <linux/err.h>
-#include <linux/slab.h>
-
-/* Register defines */
-
-#define MCPC_CTRL			0x30
-#define MCPC_CTRL_RTSOL			(1 << 7)
-#define MCPC_CTRL_EXTSWR		(1 << 6)
-#define MCPC_CTRL_EXTSWC		(1 << 5)
-#define MCPC_CTRL_VOICESW		(1 << 4)
-#define MCPC_CTRL_OUT64K		(1 << 3)
-#define MCPC_CTRL_RTSCTSSW		(1 << 2)
-#define MCPC_CTRL_HS_UART		(1 << 0)
-
-#define MCPC_IO_CTRL			0x33
-#define MCPC_IO_CTRL_MICBIASEN		(1 << 5)
-#define MCPC_IO_CTRL_CTS_NPU		(1 << 4)
-#define MCPC_IO_CTRL_RXD_PU		(1 << 3)
-#define MCPC_IO_CTRL_TXDTYP		(1 << 2)
-#define MCPC_IO_CTRL_CTSTYP		(1 << 1)
-#define MCPC_IO_CTRL_RTSTYP		(1 << 0)
-
-#define MCPC_CTRL2			0x36
-#define MCPC_CTRL2_MCPC_CK_EN		(1 << 0)
-
-#define OTHER_FUNC_CTRL			0x80
-#define OTHER_FUNC_CTRL_BDIS_ACON_EN	(1 << 4)
-#define OTHER_FUNC_CTRL_FIVEWIRE_MODE	(1 << 2)
-
-#define OTHER_IFC_CTRL			0x83
-#define OTHER_IFC_CTRL_OE_INT_EN	(1 << 6)
-#define OTHER_IFC_CTRL_CEA2011_MODE	(1 << 5)
-#define OTHER_IFC_CTRL_FSLSSERIALMODE_4PIN	(1 << 4)
-#define OTHER_IFC_CTRL_HIZ_ULPI_60MHZ_OUT	(1 << 3)
-#define OTHER_IFC_CTRL_HIZ_ULPI		(1 << 2)
-#define OTHER_IFC_CTRL_ALT_INT_REROUTE	(1 << 0)
-
-#define OTHER_INT_EN_RISE		0x86
-#define OTHER_INT_EN_FALL		0x89
-#define OTHER_INT_STS			0x8C
-#define OTHER_INT_LATCH			0x8D
-#define OTHER_INT_VB_SESS_VLD		(1 << 7)
-#define OTHER_INT_DM_HI			(1 << 6) /* not valid for "latch" reg */
-#define OTHER_INT_DP_HI			(1 << 5) /* not valid for "latch" reg */
-#define OTHER_INT_BDIS_ACON		(1 << 3) /* not valid for "fall" regs */
-#define OTHER_INT_MANU			(1 << 1)
-#define OTHER_INT_ABNORMAL_STRESS	(1 << 0)
-
-#define ID_STATUS			0x96
-#define ID_RES_FLOAT			(1 << 4)
-#define ID_RES_440K			(1 << 3)
-#define ID_RES_200K			(1 << 2)
-#define ID_RES_102K			(1 << 1)
-#define ID_RES_GND			(1 << 0)
-
-#define POWER_CTRL			0xAC
-#define POWER_CTRL_OTG_ENAB		(1 << 5)
-
-#define OTHER_IFC_CTRL2			0xAF
-#define OTHER_IFC_CTRL2_ULPI_STP_LOW	(1 << 4)
-#define OTHER_IFC_CTRL2_ULPI_TXEN_POL	(1 << 3)
-#define OTHER_IFC_CTRL2_ULPI_4PIN_2430	(1 << 2)
-#define OTHER_IFC_CTRL2_USB_INT_OUTSEL_MASK	(3 << 0) /* bits 0 and 1 */
-#define OTHER_IFC_CTRL2_USB_INT_OUTSEL_INT1N	(0 << 0)
-#define OTHER_IFC_CTRL2_USB_INT_OUTSEL_INT2N	(1 << 0)
-
-#define REG_CTRL_EN			0xB2
-#define REG_CTRL_ERROR			0xB5
-#define ULPI_I2C_CONFLICT_INTEN		(1 << 0)
-
-#define OTHER_FUNC_CTRL2		0xB8
-#define OTHER_FUNC_CTRL2_VBAT_TIMER_EN	(1 << 0)
-
-/* following registers do not have separate _clr and _set registers */
-#define VBUS_DEBOUNCE			0xC0
-#define ID_DEBOUNCE			0xC1
-#define VBAT_TIMER			0xD3
-#define PHY_PWR_CTRL			0xFD
-#define PHY_PWR_PHYPWD			(1 << 0)
-#define PHY_CLK_CTRL			0xFE
-#define PHY_CLK_CTRL_CLOCKGATING_EN	(1 << 2)
-#define PHY_CLK_CTRL_CLK32K_EN		(1 << 1)
-#define REQ_PHY_DPLL_CLK		(1 << 0)
-#define PHY_CLK_CTRL_STS		0xFF
-#define PHY_DPLL_CLK			(1 << 0)
-
-/* In module TWL_MODULE_PM_MASTER */
-#define STS_HW_CONDITIONS		0x0F
-
-/* In module TWL_MODULE_PM_RECEIVER */
-#define VUSB_DEDICATED1			0x7D
-#define VUSB_DEDICATED2			0x7E
-#define VUSB1V5_DEV_GRP			0x71
-#define VUSB1V5_TYPE			0x72
-#define VUSB1V5_REMAP			0x73
-#define VUSB1V8_DEV_GRP			0x74
-#define VUSB1V8_TYPE			0x75
-#define VUSB1V8_REMAP			0x76
-#define VUSB3V1_DEV_GRP			0x77
-#define VUSB3V1_TYPE			0x78
-#define VUSB3V1_REMAP			0x79
-
-/* In module TWL4030_MODULE_INTBR */
-#define PMBR1				0x0D
-#define GPIO_USB_4PIN_ULPI_2430C	(3 << 0)
-
-struct twl4030_usb {
-	struct usb_phy		phy;
-	struct device		*dev;
-
-	/* TWL4030 internal USB regulator supplies */
-	struct regulator	*usb1v5;
-	struct regulator	*usb1v8;
-	struct regulator	*usb3v1;
-
-	/* for vbus reporting with irqs disabled */
-	spinlock_t		lock;
-
-	/* pin configuration */
-	enum twl4030_usb_mode	usb_mode;
-
-	int			irq;
-	enum omap_musb_vbus_id_status linkstat;
-	bool			vbus_supplied;
-	u8			asleep;
-	bool			irq_enabled;
-
-	struct delayed_work	id_workaround_work;
-};
-
-/* internal define on top of container_of */
-#define phy_to_twl(x)		container_of((x), struct twl4030_usb, phy)
-
-/*-------------------------------------------------------------------------*/
-
-static int twl4030_i2c_write_u8_verify(struct twl4030_usb *twl,
-		u8 module, u8 data, u8 address)
-{
-	u8 check;
-
-	if ((twl_i2c_write_u8(module, data, address) >= 0) &&
-	    (twl_i2c_read_u8(module, &check, address) >= 0) &&
-						(check == data))
-		return 0;
-	dev_dbg(twl->dev, "Write%d[%d,0x%x] wrote %02x but read %02x\n",
-			1, module, address, check, data);
-
-	/* Failed once: Try again */
-	if ((twl_i2c_write_u8(module, data, address) >= 0) &&
-	    (twl_i2c_read_u8(module, &check, address) >= 0) &&
-						(check == data))
-		return 0;
-	dev_dbg(twl->dev, "Write%d[%d,0x%x] wrote %02x but read %02x\n",
-			2, module, address, check, data);
-
-	/* Failed again: Return error */
-	return -EBUSY;
-}
-
-#define twl4030_usb_write_verify(twl, address, data)	\
-	twl4030_i2c_write_u8_verify(twl, TWL_MODULE_USB, (data), (address))
-
-static inline int twl4030_usb_write(struct twl4030_usb *twl,
-		u8 address, u8 data)
-{
-	int ret = 0;
-
-	ret = twl_i2c_write_u8(TWL_MODULE_USB, data, address);
-	if (ret < 0)
-		dev_dbg(twl->dev,
-			"TWL4030:USB:Write[0x%x] Error %d\n", address, ret);
-	return ret;
-}
-
-static inline int twl4030_readb(struct twl4030_usb *twl, u8 module, u8 address)
-{
-	u8 data;
-	int ret = 0;
-
-	ret = twl_i2c_read_u8(module, &data, address);
-	if (ret >= 0)
-		ret = data;
-	else
-		dev_dbg(twl->dev,
-			"TWL4030:readb[0x%x,0x%x] Error %d\n",
-					module, address, ret);
-
-	return ret;
-}
-
-static inline int twl4030_usb_read(struct twl4030_usb *twl, u8 address)
-{
-	return twl4030_readb(twl, TWL_MODULE_USB, address);
-}
-
-/*-------------------------------------------------------------------------*/
-
-static inline int
-twl4030_usb_set_bits(struct twl4030_usb *twl, u8 reg, u8 bits)
-{
-	return twl4030_usb_write(twl, ULPI_SET(reg), bits);
-}
-
-static inline int
-twl4030_usb_clear_bits(struct twl4030_usb *twl, u8 reg, u8 bits)
-{
-	return twl4030_usb_write(twl, ULPI_CLR(reg), bits);
-}
-
-/*-------------------------------------------------------------------------*/
-
-static bool twl4030_is_driving_vbus(struct twl4030_usb *twl)
-{
-	int ret;
-
-	ret = twl4030_usb_read(twl, PHY_CLK_CTRL_STS);
-	if (ret < 0 || !(ret & PHY_DPLL_CLK))
-		/*
-		 * if clocks are off, registers are not updated,
-		 * but we can assume we don't drive VBUS in this case
-		 */
-		return false;
-
-	ret = twl4030_usb_read(twl, ULPI_OTG_CTRL);
-	if (ret < 0)
-		return false;
-
-	return (ret & (ULPI_OTG_DRVVBUS | ULPI_OTG_CHRGVBUS)) ? true : false;
-}
-
-static enum omap_musb_vbus_id_status
-	twl4030_usb_linkstat(struct twl4030_usb *twl)
-{
-	int	status;
-	enum omap_musb_vbus_id_status linkstat = OMAP_MUSB_UNKNOWN;
-
-	twl->vbus_supplied = false;
-
-	/*
-	 * For ID/VBUS sensing, see manual section 15.4.8 ...
-	 * except when using only battery backup power, two
-	 * comparators produce VBUS_PRES and ID_PRES signals,
-	 * which don't match docs elsewhere.  But ... BIT(7)
-	 * and BIT(2) of STS_HW_CONDITIONS, respectively, do
-	 * seem to match up.  If either is true the USB_PRES
-	 * signal is active, the OTG module is activated, and
-	 * its interrupt may be raised (may wake the system).
-	 */
-	status = twl4030_readb(twl, TWL_MODULE_PM_MASTER, STS_HW_CONDITIONS);
-	if (status < 0)
-		dev_err(twl->dev, "USB link status err %d\n", status);
-	else if (status & (BIT(7) | BIT(2))) {
-		if (status & BIT(7)) {
-			if (twl4030_is_driving_vbus(twl))
-				status &= ~BIT(7);
-			else
-				twl->vbus_supplied = true;
-		}
-
-		if (status & BIT(2))
-			linkstat = OMAP_MUSB_ID_GROUND;
-		else if (status & BIT(7))
-			linkstat = OMAP_MUSB_VBUS_VALID;
-		else
-			linkstat = OMAP_MUSB_VBUS_OFF;
-	} else {
-		if (twl->linkstat != OMAP_MUSB_UNKNOWN)
-			linkstat = OMAP_MUSB_VBUS_OFF;
-	}
-
-	dev_dbg(twl->dev, "HW_CONDITIONS 0x%02x/%d; link %d\n",
-			status, status, linkstat);
-
-	/* REVISIT this assumes host and peripheral controllers
-	 * are registered, and that both are active...
-	 */
-
-	return linkstat;
-}
-
-static void twl4030_usb_set_mode(struct twl4030_usb *twl, int mode)
-{
-	twl->usb_mode = mode;
-
-	switch (mode) {
-	case T2_USB_MODE_ULPI:
-		twl4030_usb_clear_bits(twl, ULPI_IFC_CTRL,
-					ULPI_IFC_CTRL_CARKITMODE);
-		twl4030_usb_set_bits(twl, POWER_CTRL, POWER_CTRL_OTG_ENAB);
-		twl4030_usb_clear_bits(twl, ULPI_FUNC_CTRL,
-					ULPI_FUNC_CTRL_XCVRSEL_MASK |
-					ULPI_FUNC_CTRL_OPMODE_MASK);
-		break;
-	case -1:
-		/* FIXME: power on defaults */
-		break;
-	default:
-		dev_err(twl->dev, "unsupported T2 transceiver mode %d\n",
-				mode);
-		break;
-	};
-}
-
-static void twl4030_i2c_access(struct twl4030_usb *twl, int on)
-{
-	unsigned long timeout;
-	int val = twl4030_usb_read(twl, PHY_CLK_CTRL);
-
-	if (val >= 0) {
-		if (on) {
-			/* enable DPLL to access PHY registers over I2C */
-			val |= REQ_PHY_DPLL_CLK;
-			WARN_ON(twl4030_usb_write_verify(twl, PHY_CLK_CTRL,
-						(u8)val) < 0);
-
-			timeout = jiffies + HZ;
-			while (!(twl4030_usb_read(twl, PHY_CLK_CTRL_STS) &
-							PHY_DPLL_CLK)
-				&& time_before(jiffies, timeout))
-					udelay(10);
-			if (!(twl4030_usb_read(twl, PHY_CLK_CTRL_STS) &
-							PHY_DPLL_CLK))
-				dev_err(twl->dev, "Timeout setting T2 HSUSB "
-						"PHY DPLL clock\n");
-		} else {
-			/* let ULPI control the DPLL clock */
-			val &= ~REQ_PHY_DPLL_CLK;
-			WARN_ON(twl4030_usb_write_verify(twl, PHY_CLK_CTRL,
-						(u8)val) < 0);
-		}
-	}
-}
-
-static void __twl4030_phy_power(struct twl4030_usb *twl, int on)
-{
-	u8 pwr = twl4030_usb_read(twl, PHY_PWR_CTRL);
-
-	if (on)
-		pwr &= ~PHY_PWR_PHYPWD;
-	else
-		pwr |= PHY_PWR_PHYPWD;
-
-	WARN_ON(twl4030_usb_write_verify(twl, PHY_PWR_CTRL, pwr) < 0);
-}
-
-static void twl4030_phy_power(struct twl4030_usb *twl, int on)
-{
-	int ret;
-
-	if (on) {
-		ret = regulator_enable(twl->usb3v1);
-		if (ret)
-			dev_err(twl->dev, "Failed to enable usb3v1\n");
-
-		ret = regulator_enable(twl->usb1v8);
-		if (ret)
-			dev_err(twl->dev, "Failed to enable usb1v8\n");
-
-		/*
-		 * Disabling usb3v1 regulator (= writing 0 to VUSB3V1_DEV_GRP
-		 * in twl4030) resets the VUSB_DEDICATED2 register. This reset
-		 * enables VUSB3V1_SLEEP bit that remaps usb3v1 ACTIVE state to
-		 * SLEEP. We work around this by clearing the bit after usv3v1
-		 * is re-activated. This ensures that VUSB3V1 is really active.
-		 */
-		twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB_DEDICATED2);
-
-		ret = regulator_enable(twl->usb1v5);
-		if (ret)
-			dev_err(twl->dev, "Failed to enable usb1v5\n");
-
-		__twl4030_phy_power(twl, 1);
-		twl4030_usb_write(twl, PHY_CLK_CTRL,
-				  twl4030_usb_read(twl, PHY_CLK_CTRL) |
-					(PHY_CLK_CTRL_CLOCKGATING_EN |
-						PHY_CLK_CTRL_CLK32K_EN));
-	} else {
-		__twl4030_phy_power(twl, 0);
-		regulator_disable(twl->usb1v5);
-		regulator_disable(twl->usb1v8);
-		regulator_disable(twl->usb3v1);
-	}
-}
-
-static void twl4030_phy_suspend(struct twl4030_usb *twl, int controller_off)
-{
-	if (twl->asleep)
-		return;
-
-	twl4030_phy_power(twl, 0);
-	twl->asleep = 1;
-	dev_dbg(twl->dev, "%s\n", __func__);
-}
-
-static void __twl4030_phy_resume(struct twl4030_usb *twl)
-{
-	twl4030_phy_power(twl, 1);
-	twl4030_i2c_access(twl, 1);
-	twl4030_usb_set_mode(twl, twl->usb_mode);
-	if (twl->usb_mode == T2_USB_MODE_ULPI)
-		twl4030_i2c_access(twl, 0);
-}
-
-static void twl4030_phy_resume(struct twl4030_usb *twl)
-{
-	if (!twl->asleep)
-		return;
-	__twl4030_phy_resume(twl);
-	twl->asleep = 0;
-	dev_dbg(twl->dev, "%s\n", __func__);
-
-	/*
-	 * XXX When VBUS gets driven after musb goes to A mode,
-	 * ID_PRES related interrupts no longer arrive, why?
-	 * Register itself is updated fine though, so we must poll.
-	 */
-	if (twl->linkstat == OMAP_MUSB_ID_GROUND) {
-		cancel_delayed_work(&twl->id_workaround_work);
-		schedule_delayed_work(&twl->id_workaround_work, HZ);
-	}
-}
-
-static int twl4030_usb_ldo_init(struct twl4030_usb *twl)
-{
-	/* Enable writing to power configuration registers */
-	twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG1,
-			 TWL4030_PM_MASTER_PROTECT_KEY);
-
-	twl_i2c_write_u8(TWL_MODULE_PM_MASTER, TWL4030_PM_MASTER_KEY_CFG2,
-			 TWL4030_PM_MASTER_PROTECT_KEY);
-
-	/* Keep VUSB3V1 LDO in sleep state until VBUS/ID change detected*/
-	/*twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB_DEDICATED2);*/
-
-	/* input to VUSB3V1 LDO is from VBAT, not VBUS */
-	twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0x14, VUSB_DEDICATED1);
-
-	/* Initialize 3.1V regulator */
-	twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB3V1_DEV_GRP);
-
-	twl->usb3v1 = devm_regulator_get(twl->dev, "usb3v1");
-	if (IS_ERR(twl->usb3v1))
-		return -ENODEV;
-
-	twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB3V1_TYPE);
-
-	/* Initialize 1.5V regulator */
-	twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB1V5_DEV_GRP);
-
-	twl->usb1v5 = devm_regulator_get(twl->dev, "usb1v5");
-	if (IS_ERR(twl->usb1v5))
-		return -ENODEV;
-
-	twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB1V5_TYPE);
-
-	/* Initialize 1.8V regulator */
-	twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB1V8_DEV_GRP);
-
-	twl->usb1v8 = devm_regulator_get(twl->dev, "usb1v8");
-	if (IS_ERR(twl->usb1v8))
-		return -ENODEV;
-
-	twl_i2c_write_u8(TWL_MODULE_PM_RECEIVER, 0, VUSB1V8_TYPE);
-
-	/* disable access to power configuration registers */
-	twl_i2c_write_u8(TWL_MODULE_PM_MASTER, 0,
-			 TWL4030_PM_MASTER_PROTECT_KEY);
-
-	return 0;
-}
-
-static ssize_t twl4030_usb_vbus_show(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct twl4030_usb *twl = dev_get_drvdata(dev);
-	unsigned long flags;
-	int ret = -EINVAL;
-
-	spin_lock_irqsave(&twl->lock, flags);
-	ret = sprintf(buf, "%s\n",
-			twl->vbus_supplied ? "on" : "off");
-	spin_unlock_irqrestore(&twl->lock, flags);
-
-	return ret;
-}
-static DEVICE_ATTR(vbus, 0444, twl4030_usb_vbus_show, NULL);
-
-static irqreturn_t twl4030_usb_irq(int irq, void *_twl)
-{
-	struct twl4030_usb *twl = _twl;
-	enum omap_musb_vbus_id_status status;
-	bool status_changed = false;
-
-	status = twl4030_usb_linkstat(twl);
-
-	spin_lock_irq(&twl->lock);
-	if (status >= 0 && status != twl->linkstat) {
-		twl->linkstat = status;
-		status_changed = true;
-	}
-	spin_unlock_irq(&twl->lock);
-
-	if (status_changed) {
-		/* FIXME add a set_power() method so that B-devices can
-		 * configure the charger appropriately.  It's not always
-		 * correct to consume VBUS power, and how much current to
-		 * consume is a function of the USB configuration chosen
-		 * by the host.
-		 *
-		 * REVISIT usb_gadget_vbus_connect(...) as needed, ditto
-		 * its disconnect() sibling, when changing to/from the
-		 * USB_LINK_VBUS state.  musb_hdrc won't care until it
-		 * starts to handle softconnect right.
-		 */
-		omap_musb_mailbox(status);
-	}
-	sysfs_notify(&twl->dev->kobj, NULL, "vbus");
-
-	return IRQ_HANDLED;
-}
-
-static void twl4030_id_workaround_work(struct work_struct *work)
-{
-	struct twl4030_usb *twl = container_of(work, struct twl4030_usb,
-		id_workaround_work.work);
-	enum omap_musb_vbus_id_status status;
-	bool status_changed = false;
-
-	status = twl4030_usb_linkstat(twl);
-
-	spin_lock_irq(&twl->lock);
-	if (status >= 0 && status != twl->linkstat) {
-		twl->linkstat = status;
-		status_changed = true;
-	}
-	spin_unlock_irq(&twl->lock);
-
-	if (status_changed) {
-		dev_dbg(twl->dev, "handle missing status change to %d\n",
-				status);
-		omap_musb_mailbox(status);
-	}
-
-	/* don't schedule during sleep - irq works right then */
-	if (status == OMAP_MUSB_ID_GROUND && !twl->asleep) {
-		cancel_delayed_work(&twl->id_workaround_work);
-		schedule_delayed_work(&twl->id_workaround_work, HZ);
-	}
-}
-
-static int twl4030_usb_phy_init(struct usb_phy *phy)
-{
-	struct twl4030_usb *twl = phy_to_twl(phy);
-	enum omap_musb_vbus_id_status status;
-
-	/*
-	 * Start in sleep state, we'll get called through set_suspend()
-	 * callback when musb is runtime resumed and it's time to start.
-	 */
-	__twl4030_phy_power(twl, 0);
-	twl->asleep = 1;
-
-	status = twl4030_usb_linkstat(twl);
-	twl->linkstat = status;
-
-	if (status == OMAP_MUSB_ID_GROUND || status == OMAP_MUSB_VBUS_VALID)
-		omap_musb_mailbox(twl->linkstat);
-
-	sysfs_notify(&twl->dev->kobj, NULL, "vbus");
-	return 0;
-}
-
-static int twl4030_set_suspend(struct usb_phy *x, int suspend)
-{
-	struct twl4030_usb *twl = phy_to_twl(x);
-
-	if (suspend)
-		twl4030_phy_suspend(twl, 1);
-	else
-		twl4030_phy_resume(twl);
-
-	return 0;
-}
-
-static int twl4030_set_peripheral(struct usb_otg *otg,
-					struct usb_gadget *gadget)
-{
-	if (!otg)
-		return -ENODEV;
-
-	otg->gadget = gadget;
-	if (!gadget)
-		otg->phy->state = OTG_STATE_UNDEFINED;
-
-	return 0;
-}
-
-static int twl4030_set_host(struct usb_otg *otg, struct usb_bus *host)
-{
-	if (!otg)
-		return -ENODEV;
-
-	otg->host = host;
-	if (!host)
-		otg->phy->state = OTG_STATE_UNDEFINED;
-
-	return 0;
-}
-
-static int twl4030_usb_probe(struct platform_device *pdev)
-{
-	struct twl4030_usb_data *pdata = dev_get_platdata(&pdev->dev);
-	struct twl4030_usb	*twl;
-	int			status, err;
-	struct usb_otg		*otg;
-	struct device_node	*np = pdev->dev.of_node;
-
-	twl = devm_kzalloc(&pdev->dev, sizeof *twl, GFP_KERNEL);
-	if (!twl)
-		return -ENOMEM;
-
-	if (np)
-		of_property_read_u32(np, "usb_mode",
-				(enum twl4030_usb_mode *)&twl->usb_mode);
-	else if (pdata)
-		twl->usb_mode = pdata->usb_mode;
-	else {
-		dev_err(&pdev->dev, "twl4030 initialized without pdata\n");
-		return -EINVAL;
-	}
-
-	otg = devm_kzalloc(&pdev->dev, sizeof *otg, GFP_KERNEL);
-	if (!otg)
-		return -ENOMEM;
-
-	twl->dev		= &pdev->dev;
-	twl->irq		= platform_get_irq(pdev, 0);
-	twl->vbus_supplied	= false;
-	twl->asleep		= 1;
-	twl->linkstat		= OMAP_MUSB_UNKNOWN;
-
-	twl->phy.dev		= twl->dev;
-	twl->phy.label		= "twl4030";
-	twl->phy.otg		= otg;
-	twl->phy.type		= USB_PHY_TYPE_USB2;
-	twl->phy.set_suspend	= twl4030_set_suspend;
-	twl->phy.init		= twl4030_usb_phy_init;
-
-	otg->phy		= &twl->phy;
-	otg->set_host		= twl4030_set_host;
-	otg->set_peripheral	= twl4030_set_peripheral;
-
-	/* init spinlock for workqueue */
-	spin_lock_init(&twl->lock);
-
-	INIT_DELAYED_WORK(&twl->id_workaround_work, twl4030_id_workaround_work);
-
-	err = twl4030_usb_ldo_init(twl);
-	if (err) {
-		dev_err(&pdev->dev, "ldo init failed\n");
-		return err;
-	}
-	usb_add_phy_dev(&twl->phy);
-
-	platform_set_drvdata(pdev, twl);
-	if (device_create_file(&pdev->dev, &dev_attr_vbus))
-		dev_warn(&pdev->dev, "could not create sysfs file\n");
-
-	/* Our job is to use irqs and status from the power module
-	 * to keep the transceiver disabled when nothing's connected.
-	 *
-	 * FIXME we actually shouldn't start enabling it until the
-	 * USB controller drivers have said they're ready, by calling
-	 * set_host() and/or set_peripheral() ... OTG_capable boards
-	 * need both handles, otherwise just one suffices.
-	 */
-	twl->irq_enabled = true;
-	status = devm_request_threaded_irq(twl->dev, twl->irq, NULL,
-			twl4030_usb_irq, IRQF_TRIGGER_FALLING |
-			IRQF_TRIGGER_RISING | IRQF_ONESHOT, "twl4030_usb", twl);
-	if (status < 0) {
-		dev_dbg(&pdev->dev, "can't get IRQ %d, err %d\n",
-			twl->irq, status);
-		return status;
-	}
-
-	dev_info(&pdev->dev, "Initialized TWL4030 USB module\n");
-	return 0;
-}
-
-static int twl4030_usb_remove(struct platform_device *pdev)
-{
-	struct twl4030_usb *twl = platform_get_drvdata(pdev);
-	int val;
-
-	cancel_delayed_work(&twl->id_workaround_work);
-	device_remove_file(twl->dev, &dev_attr_vbus);
-
-	/* set transceiver mode to power on defaults */
-	twl4030_usb_set_mode(twl, -1);
-
-	/* autogate 60MHz ULPI clock,
-	 * clear dpll clock request for i2c access,
-	 * disable 32KHz
-	 */
-	val = twl4030_usb_read(twl, PHY_CLK_CTRL);
-	if (val >= 0) {
-		val |= PHY_CLK_CTRL_CLOCKGATING_EN;
-		val &= ~(PHY_CLK_CTRL_CLK32K_EN | REQ_PHY_DPLL_CLK);
-		twl4030_usb_write(twl, PHY_CLK_CTRL, (u8)val);
-	}
-
-	/* disable complete OTG block */
-	twl4030_usb_clear_bits(twl, POWER_CTRL, POWER_CTRL_OTG_ENAB);
-
-	if (!twl->asleep)
-		twl4030_phy_power(twl, 0);
-
-	return 0;
-}
-
-#ifdef CONFIG_OF
-static const struct of_device_id twl4030_usb_id_table[] = {
-	{ .compatible = "ti,twl4030-usb" },
-	{}
-};
-MODULE_DEVICE_TABLE(of, twl4030_usb_id_table);
-#endif
-
-static struct platform_driver twl4030_usb_driver = {
-	.probe		= twl4030_usb_probe,
-	.remove		= twl4030_usb_remove,
-	.driver		= {
-		.name	= "twl4030_usb",
-		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(twl4030_usb_id_table),
-	},
-};
-
-static int __init twl4030_usb_init(void)
-{
-	return platform_driver_register(&twl4030_usb_driver);
-}
-subsys_initcall(twl4030_usb_init);
-
-static void __exit twl4030_usb_exit(void)
-{
-	platform_driver_unregister(&twl4030_usb_driver);
-}
-module_exit(twl4030_usb_exit);
-
-MODULE_ALIAS("platform:twl4030_usb");
-MODULE_AUTHOR("Texas Instruments, Inc, Nokia Corporation");
-MODULE_DESCRIPTION("TWL4030 USB transceiver driver");
-MODULE_LICENSE("GPL");
diff --git a/include/linux/i2c/twl.h b/include/linux/i2c/twl.h
index 81cbbdb96aae..673a3ce67f31 100644
--- a/include/linux/i2c/twl.h
+++ b/include/linux/i2c/twl.h
@@ -26,6 +26,7 @@
 #define __TWL_H_
 
 #include <linux/types.h>
+#include <linux/phy/phy.h>
 #include <linux/input/matrix_keypad.h>
 
 /*
@@ -615,6 +616,7 @@ enum twl4030_usb_mode {
 struct twl4030_usb_data {
 	enum twl4030_usb_mode	usb_mode;
 	unsigned long		features;
+	struct phy_init_data	*init_data;
 
 	int		(*phy_init)(struct device *dev);
 	int		(*phy_exit)(struct device *dev);
-- 
cgit 


From 6c27f939b885c00924c745735739ba6d54eae6f0 Mon Sep 17 00:00:00 2001
From: Kishon Vijay Abraham I <kishon@ti.com>
Date: Fri, 27 Sep 2013 11:53:28 +0530
Subject: arm: omap3: twl: add phy consumer data in twl4030_usb_data

The PHY framework uses the phy consumer data populated in platform data in the
case of non-dt boot to return the reference to the PHY when the controller
(PHY consumer) requests for it. So populated the phy consumer data in the platform
data of twl usb.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/mach-omap2/twl-common.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm/mach-omap2/twl-common.c b/arch/arm/mach-omap2/twl-common.c
index c05898fbd634..b0d54dae1bcb 100644
--- a/arch/arm/mach-omap2/twl-common.c
+++ b/arch/arm/mach-omap2/twl-common.c
@@ -24,6 +24,7 @@
 #include <linux/i2c/twl.h>
 #include <linux/gpio.h>
 #include <linux/string.h>
+#include <linux/phy/phy.h>
 #include <linux/regulator/machine.h>
 #include <linux/regulator/fixed.h>
 
@@ -90,8 +91,18 @@ void __init omap_pmic_late_init(void)
 }
 
 #if defined(CONFIG_ARCH_OMAP3)
+struct phy_consumer consumers[] = {
+	PHY_CONSUMER("musb-hdrc.0", "usb"),
+};
+
+struct phy_init_data init_data = {
+	.consumers = consumers,
+	.num_consumers = ARRAY_SIZE(consumers),
+};
+
 static struct twl4030_usb_data omap3_usb_pdata = {
 	.usb_mode	= T2_USB_MODE_ULPI,
+	.init_data	= &init_data,
 };
 
 static int omap3_batt_table[] = {
-- 
cgit 


From 975d963e6ddcc0f906f53f62f9dc6ee817ea5d88 Mon Sep 17 00:00:00 2001
From: Kishon Vijay Abraham I <kishon@ti.com>
Date: Fri, 27 Sep 2013 11:53:29 +0530
Subject: ARM: dts: omap: update usb_otg_hs data

Updated the usb_otg_hs dt data to include the *phy* and *phy-names*
binding in order for the driver to use the new generic PHY framework.
Also updated the Documentation to include the binding information.
The PHY binding information can be found at
Documentation/devicetree/bindings/phy/phy-bindings.txt

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/devicetree/bindings/usb/omap-usb.txt | 5 +++++
 Documentation/devicetree/bindings/usb/usb-phy.txt  | 6 ++++++
 arch/arm/boot/dts/omap3-beagle-xm.dts              | 2 ++
 arch/arm/boot/dts/omap3-evm.dts                    | 2 ++
 arch/arm/boot/dts/omap3-overo.dtsi                 | 2 ++
 arch/arm/boot/dts/omap4.dtsi                       | 3 +++
 arch/arm/boot/dts/twl4030.dtsi                     | 1 +
 7 files changed, 21 insertions(+)

diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt b/Documentation/devicetree/bindings/usb/omap-usb.txt
index 9088ab09e200..661cb06a9063 100644
--- a/Documentation/devicetree/bindings/usb/omap-usb.txt
+++ b/Documentation/devicetree/bindings/usb/omap-usb.txt
@@ -19,6 +19,9 @@ OMAP MUSB GLUE
  - power : Should be "50". This signifies the controller can supply up to
    100mA when operating in host mode.
  - usb-phy : the phandle for the PHY device
+ - phys : the phandle for the PHY device (used by generic PHY framework)
+ - phy-names : the names of the PHY corresponding to the PHYs present in the
+   *phy* phandle.
 
 Optional properties:
  - ctrl-module : phandle of the control module this glue uses to write to
@@ -33,6 +36,8 @@ usb_otg_hs: usb_otg_hs@4a0ab000 {
 	num-eps = <16>;
 	ram-bits = <12>;
 	ctrl-module = <&omap_control_usb>;
+	phys = <&usb2_phy>;
+	phy-names = "usb2-phy";
 };
 
 Board specific device node entry
diff --git a/Documentation/devicetree/bindings/usb/usb-phy.txt b/Documentation/devicetree/bindings/usb/usb-phy.txt
index 61496f5cb095..c0245c888982 100644
--- a/Documentation/devicetree/bindings/usb/usb-phy.txt
+++ b/Documentation/devicetree/bindings/usb/usb-phy.txt
@@ -5,6 +5,8 @@ OMAP USB2 PHY
 Required properties:
  - compatible: Should be "ti,omap-usb2"
  - reg : Address and length of the register set for the device.
+ - #phy-cells: determine the number of cells that should be given in the
+   phandle while referencing this phy.
 
 Optional properties:
  - ctrl-module : phandle of the control module used by PHY driver to power on
@@ -16,6 +18,7 @@ usb2phy@4a0ad080 {
 	compatible = "ti,omap-usb2";
 	reg = <0x4a0ad080 0x58>;
 	ctrl-module = <&omap_control_usb>;
+	#phy-cells = <0>;
 };
 
 OMAP USB3 PHY
@@ -25,6 +28,8 @@ Required properties:
  - reg : Address and length of the register set for the device.
  - reg-names: The names of the register addresses corresponding to the registers
    filled in "reg".
+ - #phy-cells: determine the number of cells that should be given in the
+   phandle while referencing this phy.
 
 Optional properties:
  - ctrl-module : phandle of the control module used by PHY driver to power on
@@ -39,4 +44,5 @@ usb3phy@4a084400 {
 	      <0x4a084c00 0x40>;
 	reg-names = "phy_rx", "phy_tx", "pll_ctrl";
 	ctrl-module = <&omap_control_usb>;
+	#phy-cells = <0>;
 };
diff --git a/arch/arm/boot/dts/omap3-beagle-xm.dts b/arch/arm/boot/dts/omap3-beagle-xm.dts
index 0c514dc8460c..84838469f0d6 100644
--- a/arch/arm/boot/dts/omap3-beagle-xm.dts
+++ b/arch/arm/boot/dts/omap3-beagle-xm.dts
@@ -144,6 +144,8 @@
 &usb_otg_hs {
 	interface-type = <0>;
 	usb-phy = <&usb2_phy>;
+	phys = <&usb2_phy>;
+	phy-names = "usb2-phy";
 	mode = <3>;
 	power = <50>;
 };
diff --git a/arch/arm/boot/dts/omap3-evm.dts b/arch/arm/boot/dts/omap3-evm.dts
index 7d4329d179c4..4134dd05c3a4 100644
--- a/arch/arm/boot/dts/omap3-evm.dts
+++ b/arch/arm/boot/dts/omap3-evm.dts
@@ -70,6 +70,8 @@
 &usb_otg_hs {
 	interface-type = <0>;
 	usb-phy = <&usb2_phy>;
+	phys = <&usb2_phy>;
+	phy-names = "usb2-phy";
 	mode = <3>;
 	power = <50>;
 };
diff --git a/arch/arm/boot/dts/omap3-overo.dtsi b/arch/arm/boot/dts/omap3-overo.dtsi
index 8f1abec78275..a461d2fd1fb0 100644
--- a/arch/arm/boot/dts/omap3-overo.dtsi
+++ b/arch/arm/boot/dts/omap3-overo.dtsi
@@ -76,6 +76,8 @@
 &usb_otg_hs {
 	interface-type = <0>;
 	usb-phy = <&usb2_phy>;
+	phys = <&usb2_phy>;
+	phy-names = "usb2-phy";
 	mode = <3>;
 	power = <50>;
 };
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 22d9f2b593d4..1e8e2fe71de9 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -520,6 +520,7 @@
 				compatible = "ti,omap-usb2";
 				reg = <0x4a0ad080 0x58>;
 				ctrl-module = <&omap_control_usb>;
+				#phy-cells = <0>;
 			};
 		};
 
@@ -658,6 +659,8 @@
 			interrupt-names = "mc", "dma";
 			ti,hwmods = "usb_otg_hs";
 			usb-phy = <&usb2_phy>;
+			phys = <&usb2_phy>;
+			phy-names = "usb2-phy";
 			multipoint = <1>;
 			num-eps = <16>;
 			ram-bits = <12>;
diff --git a/arch/arm/boot/dts/twl4030.dtsi b/arch/arm/boot/dts/twl4030.dtsi
index ae6a17aed9ee..5aba238d1f1e 100644
--- a/arch/arm/boot/dts/twl4030.dtsi
+++ b/arch/arm/boot/dts/twl4030.dtsi
@@ -86,6 +86,7 @@
 		usb1v8-supply = <&vusb1v8>;
 		usb3v1-supply = <&vusb3v1>;
 		usb_mode = <1>;
+		#phy-cells = <0>;
 	};
 
 	twl_pwm: pwm {
-- 
cgit 


From 3e3101d57c50f9e4fa1da947e4bd0bc5cbab4141 Mon Sep 17 00:00:00 2001
From: Kishon Vijay Abraham I <kishon@ti.com>
Date: Fri, 27 Sep 2013 11:53:30 +0530
Subject: usb: musb: omap2430: use the new generic PHY framework

Use the generic PHY framework API to get the PHY. The usb_phy_set_resume
and usb_phy_set_suspend is replaced with power_on and
power_off to align with the new PHY framework.

musb->xceiv can't be removed as of now because musb core uses xceiv.state and
xceiv.otg. Once there is a separate state machine to handle otg, these can be
moved out of xceiv and then we can start using the generic PHY framework.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/musb/Kconfig     |  1 +
 drivers/usb/musb/musb_core.h |  2 ++
 drivers/usb/musb/omap2430.c  | 26 ++++++++++++++++++++------
 3 files changed, 23 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
index c258a97ef1b0..0440e2807280 100644
--- a/drivers/usb/musb/Kconfig
+++ b/drivers/usb/musb/Kconfig
@@ -75,6 +75,7 @@ config USB_MUSB_TUSB6010
 config USB_MUSB_OMAP2PLUS
 	tristate "OMAP2430 and onwards"
 	depends on ARCH_OMAP2PLUS
+	select GENERIC_PHY
 
 config USB_MUSB_AM35X
 	tristate "AM35x"
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index 65f3917b4fc5..d408a9962f66 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -46,6 +46,7 @@
 #include <linux/usb.h>
 #include <linux/usb/otg.h>
 #include <linux/usb/musb.h>
+#include <linux/phy/phy.h>
 
 struct musb;
 struct musb_hw_ep;
@@ -341,6 +342,7 @@ struct musb {
 	u16			int_tx;
 
 	struct usb_phy		*xceiv;
+	struct phy		*phy;
 
 	int nIrq;
 	unsigned		irq_wake:1;
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 59d2245db1c8..d0fc4d9c7b80 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -348,11 +348,21 @@ static int omap2430_musb_init(struct musb *musb)
 	 * up through ULPI.  TWL4030-family PMICs include one,
 	 * which needs a driver, drivers aren't always needed.
 	 */
-	if (dev->parent->of_node)
+	if (dev->parent->of_node) {
+		musb->phy = devm_phy_get(dev->parent, "usb2-phy");
+
+		/* We can't totally remove musb->xceiv as of now because
+		 * musb core uses xceiv.state and xceiv.otg. Once we have
+		 * a separate state machine to handle otg, these can be moved
+		 * out of xceiv and then we can start using the generic PHY
+		 * framework
+		 */
 		musb->xceiv = devm_usb_get_phy_by_phandle(dev->parent,
 		    "usb-phy", 0);
-	else
+	} else {
 		musb->xceiv = devm_usb_get_phy_dev(dev, 0);
+		musb->phy = devm_phy_get(dev, "usb");
+	}
 
 	if (IS_ERR(musb->xceiv)) {
 		status = PTR_ERR(musb->xceiv);
@@ -364,6 +374,10 @@ static int omap2430_musb_init(struct musb *musb)
 		return -EPROBE_DEFER;
 	}
 
+	if (IS_ERR(musb->phy)) {
+		pr_err("HS USB OTG: no PHY configured\n");
+		return PTR_ERR(musb->phy);
+	}
 	musb->isr = omap2430_musb_interrupt;
 
 	status = pm_runtime_get_sync(dev);
@@ -397,7 +411,7 @@ static int omap2430_musb_init(struct musb *musb)
 	if (glue->status != OMAP_MUSB_UNKNOWN)
 		omap_musb_set_mailbox(glue);
 
-	usb_phy_init(musb->xceiv);
+	phy_init(musb->phy);
 
 	pm_runtime_put_noidle(musb->controller);
 	return 0;
@@ -460,6 +474,7 @@ static int omap2430_musb_exit(struct musb *musb)
 	del_timer_sync(&musb_idle_timer);
 
 	omap2430_low_level_exit(musb);
+	phy_exit(musb->phy);
 
 	return 0;
 }
@@ -638,7 +653,7 @@ static int omap2430_runtime_suspend(struct device *dev)
 				OTG_INTERFSEL);
 
 		omap2430_low_level_exit(musb);
-		usb_phy_set_suspend(musb->xceiv, 1);
+		phy_power_off(musb->phy);
 	}
 
 	return 0;
@@ -653,8 +668,7 @@ static int omap2430_runtime_resume(struct device *dev)
 		omap2430_low_level_init(musb);
 		musb_writel(musb->mregs, OTG_INTERFSEL,
 				musb->context.otg_interfsel);
-
-		usb_phy_set_suspend(musb->xceiv, 0);
+		phy_power_on(musb->phy);
 	}
 
 	return 0;
-- 
cgit 


From f1ddc24c9e33813f74b871d73e4d795dcdb95a3c Mon Sep 17 00:00:00 2001
From: Kishon Vijay Abraham I <kishon@ti.com>
Date: Fri, 27 Sep 2013 11:53:31 +0530
Subject: usb: phy: twl4030-usb: remove *set_suspend* and *phy_init* ops

Now that twl4030-usb is adapted to the new generic PHY framework,
*set_suspend* and *phy_init* ops can be removed from twl4030-usb driver.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/phy/phy-twl4030-usb.c | 57 ++++++++++---------------------------------
 1 file changed, 13 insertions(+), 44 deletions(-)

diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c
index d02913f9a6b1..e0212d80c75c 100644
--- a/drivers/phy/phy-twl4030-usb.c
+++ b/drivers/phy/phy-twl4030-usb.c
@@ -422,25 +422,20 @@ static void twl4030_phy_power(struct twl4030_usb *twl, int on)
 	}
 }
 
-static void twl4030_phy_suspend(struct twl4030_usb *twl, int controller_off)
+static int twl4030_phy_power_off(struct phy *phy)
 {
+	struct twl4030_usb *twl = phy_get_drvdata(phy);
+
 	if (twl->asleep)
-		return;
+		return 0;
 
 	twl4030_phy_power(twl, 0);
 	twl->asleep = 1;
 	dev_dbg(twl->dev, "%s\n", __func__);
-}
-
-static int twl4030_phy_power_off(struct phy *phy)
-{
-	struct twl4030_usb *twl = phy_get_drvdata(phy);
-
-	twl4030_phy_suspend(twl, 0);
 	return 0;
 }
 
-static void __twl4030_phy_resume(struct twl4030_usb *twl)
+static void __twl4030_phy_power_on(struct twl4030_usb *twl)
 {
 	twl4030_phy_power(twl, 1);
 	twl4030_i2c_access(twl, 1);
@@ -449,11 +444,13 @@ static void __twl4030_phy_resume(struct twl4030_usb *twl)
 		twl4030_i2c_access(twl, 0);
 }
 
-static void twl4030_phy_resume(struct twl4030_usb *twl)
+static int twl4030_phy_power_on(struct phy *phy)
 {
+	struct twl4030_usb *twl = phy_get_drvdata(phy);
+
 	if (!twl->asleep)
-		return;
-	__twl4030_phy_resume(twl);
+		return 0;
+	__twl4030_phy_power_on(twl);
 	twl->asleep = 0;
 	dev_dbg(twl->dev, "%s\n", __func__);
 
@@ -466,13 +463,6 @@ static void twl4030_phy_resume(struct twl4030_usb *twl)
 		cancel_delayed_work(&twl->id_workaround_work);
 		schedule_delayed_work(&twl->id_workaround_work, HZ);
 	}
-}
-
-static int twl4030_phy_power_on(struct phy *phy)
-{
-	struct twl4030_usb *twl = phy_get_drvdata(phy);
-
-	twl4030_phy_resume(twl);
 	return 0;
 }
 
@@ -604,9 +594,9 @@ static void twl4030_id_workaround_work(struct work_struct *work)
 	}
 }
 
-static int twl4030_usb_phy_init(struct usb_phy *phy)
+static int twl4030_phy_init(struct phy *phy)
 {
-	struct twl4030_usb *twl = phy_to_twl(phy);
+	struct twl4030_usb *twl = phy_get_drvdata(phy);
 	enum omap_musb_vbus_id_status status;
 
 	/*
@@ -621,32 +611,13 @@ static int twl4030_usb_phy_init(struct usb_phy *phy)
 
 	if (status == OMAP_MUSB_ID_GROUND || status == OMAP_MUSB_VBUS_VALID) {
 		omap_musb_mailbox(twl->linkstat);
-		twl4030_phy_resume(twl);
+		twl4030_phy_power_on(phy);
 	}
 
 	sysfs_notify(&twl->dev->kobj, NULL, "vbus");
 	return 0;
 }
 
-static int twl4030_phy_init(struct phy *phy)
-{
-	struct twl4030_usb *twl = phy_get_drvdata(phy);
-
-	return twl4030_usb_phy_init(&twl->phy);
-}
-
-static int twl4030_set_suspend(struct usb_phy *x, int suspend)
-{
-	struct twl4030_usb *twl = phy_to_twl(x);
-
-	if (suspend)
-		twl4030_phy_suspend(twl, 1);
-	else
-		twl4030_phy_resume(twl);
-
-	return 0;
-}
-
 static int twl4030_set_peripheral(struct usb_otg *otg,
 					struct usb_gadget *gadget)
 {
@@ -719,8 +690,6 @@ static int twl4030_usb_probe(struct platform_device *pdev)
 	twl->phy.label		= "twl4030";
 	twl->phy.otg		= otg;
 	twl->phy.type		= USB_PHY_TYPE_USB2;
-	twl->phy.set_suspend	= twl4030_set_suspend;
-	twl->phy.init		= twl4030_usb_phy_init;
 
 	otg->phy		= &twl->phy;
 	otg->set_host		= twl4030_set_host;
-- 
cgit 


From b15e5691cc98b5e17db8ba8a433a4ac78efbf590 Mon Sep 17 00:00:00 2001
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Fri, 27 Sep 2013 10:52:59 +0300
Subject: serial: 8250_pci: add support for Intel BayTrail

Intel BayTrail has two HS-UARTs with 64 byte fifo, support
for DMA and support for 16750 compatible Auto Flow Control.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/8250_pci.c | 145 +++++++++++++++++++++++++++++++++++++
 1 file changed, 145 insertions(+)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 515fd0ff4e4e..d917bbb30484 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1324,6 +1324,120 @@ ce4100_serial_setup(struct serial_private *priv,
 	return ret;
 }
 
+#define PCI_DEVICE_ID_INTEL_BYT_UART1	0x0f0a
+#define PCI_DEVICE_ID_INTEL_BYT_UART2	0x0f0c
+
+#define BYT_PRV_CLK			0x800
+#define BYT_PRV_CLK_EN			(1 << 0)
+#define BYT_PRV_CLK_M_VAL_SHIFT		1
+#define BYT_PRV_CLK_N_VAL_SHIFT		16
+#define BYT_PRV_CLK_UPDATE		(1 << 31)
+
+#define BYT_GENERAL_REG			0x808
+#define BYT_GENERAL_DIS_RTS_N_OVERRIDE	(1 << 3)
+
+#define BYT_TX_OVF_INT			0x820
+#define BYT_TX_OVF_INT_MASK		(1 << 1)
+
+static void
+byt_set_termios(struct uart_port *p, struct ktermios *termios,
+		struct ktermios *old)
+{
+	unsigned int baud = tty_termios_baud_rate(termios);
+	unsigned int m = 6912;
+	unsigned int n = 15625;
+	u32 reg;
+
+	/* For baud rates 1M, 2M, 3M and 4M the dividers must be adjusted. */
+	if (baud == 1000000 || baud == 2000000 || baud == 4000000) {
+		m = 64;
+		n = 100;
+
+		p->uartclk = 64000000;
+	} else if (baud == 3000000) {
+		m = 48;
+		n = 100;
+
+		p->uartclk = 48000000;
+	} else {
+		p->uartclk = 44236800;
+	}
+
+	/* Reset the clock */
+	reg = (m << BYT_PRV_CLK_M_VAL_SHIFT) | (n << BYT_PRV_CLK_N_VAL_SHIFT);
+	writel(reg, p->membase + BYT_PRV_CLK);
+	reg |= BYT_PRV_CLK_EN | BYT_PRV_CLK_UPDATE;
+	writel(reg, p->membase + BYT_PRV_CLK);
+
+	/*
+	 * If auto-handshake mechanism is not enabled,
+	 * disable rts_n override
+	 */
+	reg = readl(p->membase + BYT_GENERAL_REG);
+	reg &= ~BYT_GENERAL_DIS_RTS_N_OVERRIDE;
+	if (termios->c_cflag & CRTSCTS)
+		reg |= BYT_GENERAL_DIS_RTS_N_OVERRIDE;
+	writel(reg, p->membase + BYT_GENERAL_REG);
+
+	serial8250_do_set_termios(p, termios, old);
+}
+
+static bool byt_dma_filter(struct dma_chan *chan, void *param)
+{
+	return chan->chan_id == *(int *)param;
+}
+
+static int
+byt_serial_setup(struct serial_private *priv,
+		 const struct pciserial_board *board,
+		 struct uart_8250_port *port, int idx)
+{
+	struct uart_8250_dma *dma;
+	int ret;
+
+	dma = devm_kzalloc(port->port.dev, sizeof(*dma), GFP_KERNEL);
+	if (!dma)
+		return -ENOMEM;
+
+	switch (priv->dev->device) {
+	case PCI_DEVICE_ID_INTEL_BYT_UART1:
+		dma->rx_chan_id = 3;
+		dma->tx_chan_id = 2;
+		break;
+	case PCI_DEVICE_ID_INTEL_BYT_UART2:
+		dma->rx_chan_id = 5;
+		dma->tx_chan_id = 4;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	dma->rxconf.slave_id = dma->rx_chan_id;
+	dma->rxconf.src_maxburst = 16;
+
+	dma->txconf.slave_id = dma->tx_chan_id;
+	dma->txconf.dst_maxburst = 16;
+
+	dma->fn = byt_dma_filter;
+	dma->rx_param = &dma->rx_chan_id;
+	dma->tx_param = &dma->tx_chan_id;
+
+	ret = pci_default_setup(priv, board, port, idx);
+	port->port.iotype = UPIO_MEM;
+	port->port.type = PORT_16550A;
+	port->port.flags = (port->port.flags | UPF_FIXED_PORT | UPF_FIXED_TYPE);
+	port->port.set_termios = byt_set_termios;
+	port->port.fifosize = 64;
+	port->tx_loadsz = 64;
+	port->dma = dma;
+	port->capabilities = UART_CAP_FIFO | UART_CAP_AFE;
+
+	/* Disable Tx counter interrupts */
+	writel(BYT_TX_OVF_INT_MASK, port->port.membase + BYT_TX_OVF_INT);
+
+	return ret;
+}
+
 static int
 pci_omegapci_setup(struct serial_private *priv,
 		      const struct pciserial_board *board,
@@ -1662,6 +1776,20 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
 		.subdevice	= PCI_ANY_ID,
 		.setup		= kt_serial_setup,
 	},
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_BYT_UART1,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= byt_serial_setup,
+	},
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_BYT_UART2,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= byt_serial_setup,
+	},
 	/*
 	 * ITE
 	 */
@@ -2449,6 +2577,7 @@ enum pci_board_num_t {
 	pbn_ADDIDATA_PCIe_4_3906250,
 	pbn_ADDIDATA_PCIe_8_3906250,
 	pbn_ce4100_1_115200,
+	pbn_byt,
 	pbn_omegapci,
 	pbn_NETMOS9900_2s_115200,
 	pbn_brcm_trumanage,
@@ -3185,6 +3314,13 @@ static struct pciserial_board pci_boards[] = {
 		.base_baud	= 921600,
 		.reg_shift      = 2,
 	},
+	[pbn_byt] = {
+		.flags		= FL_BASE0,
+		.num_ports	= 1,
+		.base_baud	= 2764800,
+		.uart_offset	= 0x80,
+		.reg_shift      = 2,
+	},
 	[pbn_omegapci] = {
 		.flags		= FL_BASE0,
 		.num_ports	= 8,
@@ -4846,6 +4982,15 @@ static struct pci_device_id serial_pci_tbl[] = {
 	{	PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_CE4100_UART,
 		PCI_ANY_ID,  PCI_ANY_ID, 0, 0,
 		pbn_ce4100_1_115200 },
+	/* Intel BayTrail */
+	{	PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT_UART1,
+		PCI_ANY_ID,  PCI_ANY_ID,
+		PCI_CLASS_COMMUNICATION_SERIAL << 8, 0xff0000,
+		pbn_byt },
+	{	PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT_UART2,
+		PCI_ANY_ID,  PCI_ANY_ID,
+		PCI_CLASS_COMMUNICATION_SERIAL << 8, 0xff0000,
+		pbn_byt },
 
 	/*
 	 * Cronyx Omega PCI
-- 
cgit 


From 058555739166561b97313123521574f0a9b2c9d7 Mon Sep 17 00:00:00 2001
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Fri, 27 Sep 2013 10:21:07 +0300
Subject: serial: 8250_dw: fix broken function call

The stub for dw8250_probe_acpi() is missing an argument.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/8250_dw.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index 8edf7697fdb2..d04a037d6b6f 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -278,7 +278,8 @@ static int dw8250_probe_acpi(struct uart_8250_port *up,
 	return 0;
 }
 #else
-static inline int dw8250_probe_acpi(struct uart_8250_port *up)
+static inline int dw8250_probe_acpi(struct uart_8250_port *up,
+				    struct dw8250_data *data)
 {
 	return -ENODEV;
 }
-- 
cgit 


From 75f93fed50c2abadbab6ef546b265f51ca975b27 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Fri, 27 Sep 2013 17:30:03 +0200
Subject: sched: Revert need_resched() to look at TIF_NEED_RESCHED

Yuanhan reported a serious throughput regression in his pigz
benchmark. Using the ftrace patch I found that several idle
paths need more TLC before we can switch the generic
need_resched() over to preempt_need_resched.

The preemption paths benefit most from preempt_need_resched and
do indeed use it; all other need_resched() users don't really
care that much so reverting need_resched() back to
tif_need_resched() is the simple and safe solution.

Reported-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Huang Ying <ying.huang@intel.com>
Cc: lkp@linux.intel.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/r/20130927153003.GF15690@laptop.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/include/asm/preempt.h | 8 --------
 include/asm-generic/preempt.h  | 8 --------
 include/linux/sched.h          | 5 +++++
 3 files changed, 5 insertions(+), 16 deletions(-)

diff --git a/arch/x86/include/asm/preempt.h b/arch/x86/include/asm/preempt.h
index 1de41690ff99..8729723636fd 100644
--- a/arch/x86/include/asm/preempt.h
+++ b/arch/x86/include/asm/preempt.h
@@ -79,14 +79,6 @@ static __always_inline bool __preempt_count_dec_and_test(void)
 	GEN_UNARY_RMWcc("decl", __preempt_count, __percpu_arg(0), "e");
 }
 
-/*
- * Returns true when we need to resched -- even if we can not.
- */
-static __always_inline bool need_resched(void)
-{
-	return unlikely(test_preempt_need_resched());
-}
-
 /*
  * Returns true when we need to resched and can (barring IRQ state).
  */
diff --git a/include/asm-generic/preempt.h b/include/asm-generic/preempt.h
index 5dc14ed3791c..ddf2b420ac8f 100644
--- a/include/asm-generic/preempt.h
+++ b/include/asm-generic/preempt.h
@@ -84,14 +84,6 @@ static __always_inline bool __preempt_count_dec_and_test(void)
 	return !--*preempt_count_ptr();
 }
 
-/*
- * Returns true when we need to resched -- even if we can not.
- */
-static __always_inline bool need_resched(void)
-{
-	return unlikely(test_preempt_need_resched());
-}
-
 /*
  * Returns true when we need to resched and can (barring IRQ state).
  */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index b09798b672f3..2ac5285db434 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2577,6 +2577,11 @@ static inline bool __must_check current_clr_polling_and_test(void)
 }
 #endif
 
+static __always_inline bool need_resched(void)
+{
+	return unlikely(tif_need_resched());
+}
+
 /*
  * Thread group CPU time accounting.
  */
-- 
cgit 


From 2a929242ee50db84c1a561c81897bb0551f2c32f Mon Sep 17 00:00:00 2001
From: Borislav Petkov <bp@suse.de>
Date: Fri, 27 Sep 2013 16:34:42 +0200
Subject: lockdep, x86/alternatives: Drop ancient lockdep fixup message

It messes up the output of the nodes/cores bootup table and it
is obsolete anyway, see

  17abecfe651c x86: fix up alternatives with lockdep enabled

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: huawei.libin@huawei.com
Cc: wangyijing@huawei.com
Cc: fenghua.yu@intel.com
Cc: guohanjun@huawei.com
Cc: paul.gortmaker@windriver.com
Link: http://lkml.kernel.org/r/20130927143442.GE4422@pd.tnic
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/alternative.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c
index 15e8563e5c24..df94598ad05a 100644
--- a/arch/x86/kernel/alternative.c
+++ b/arch/x86/kernel/alternative.c
@@ -402,17 +402,6 @@ void alternatives_enable_smp(void)
 {
 	struct smp_alt_module *mod;
 
-#ifdef CONFIG_LOCKDEP
-	/*
-	 * Older binutils section handling bug prevented
-	 * alternatives-replacement from working reliably.
-	 *
-	 * If this still occurs then you should see a hang
-	 * or crash shortly after this line:
-	 */
-	pr_info("lockdep: fixing up alternatives\n");
-#endif
-
 	/* Why bother if there are no other CPUs? */
 	BUG_ON(num_possible_cpus() == 1);
 
-- 
cgit 


From 646e29a1789a3a936871008c15199c50367bf291 Mon Sep 17 00:00:00 2001
From: Borislav Petkov <bp@suse.de>
Date: Fri, 27 Sep 2013 16:35:54 +0200
Subject: x86: Improve the printout of the SMP bootup CPU table

As the new x86 CPU bootup printout format code maintainer, I am
taking immediate action to improve and clean (and thus indulge
my OCD) the reporting of the cores when coming up online.

Fix padding to a right-hand alignment, cleanup code and bind
reporting width to the max number of supported CPUs on the
system, like this:

 [    0.074509] smpboot: Booting Node   0, Processors:      #1  #2  #3  #4  #5  #6  #7 OK
 [    0.644008] smpboot: Booting Node   1, Processors:  #8  #9 #10 #11 #12 #13 #14 #15 OK
 [    1.245006] smpboot: Booting Node   2, Processors: #16 #17 #18 #19 #20 #21 #22 #23 OK
 [    1.864005] smpboot: Booting Node   3, Processors: #24 #25 #26 #27 #28 #29 #30 #31 OK
 [    2.489005] smpboot: Booting Node   4, Processors: #32 #33 #34 #35 #36 #37 #38 #39 OK
 [    3.093005] smpboot: Booting Node   5, Processors: #40 #41 #42 #43 #44 #45 #46 #47 OK
 [    3.698005] smpboot: Booting Node   6, Processors: #48 #49 #50 #51 #52 #53 #54 #55 OK
 [    4.304005] smpboot: Booting Node   7, Processors: #56 #57 #58 #59 #60 #61 #62 #63 OK
 [    4.961413] Brought up 64 CPUs

and this:

 [    0.072367] smpboot: Booting Node   0, Processors:    #1 #2 #3 #4 #5 #6 #7 OK
 [    0.686329] Brought up 8 CPUs

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Libin <huawei.libin@huawei.com>
Cc: wangyijing@huawei.com
Cc: fenghua.yu@intel.com
Cc: guohanjun@huawei.com
Cc: paul.gortmaker@windriver.com
Link: http://lkml.kernel.org/r/20130927143554.GF4422@pd.tnic
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/include/asm/misc.h |  6 ++++++
 arch/x86/kernel/smpboot.c   | 21 +++++++++++++++------
 arch/x86/lib/Makefile       |  2 +-
 arch/x86/lib/misc.c         | 11 +++++++++++
 4 files changed, 33 insertions(+), 7 deletions(-)
 create mode 100644 arch/x86/include/asm/misc.h
 create mode 100644 arch/x86/lib/misc.c

diff --git a/arch/x86/include/asm/misc.h b/arch/x86/include/asm/misc.h
new file mode 100644
index 000000000000..475f5bbc7f53
--- /dev/null
+++ b/arch/x86/include/asm/misc.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_X86_MISC_H
+#define _ASM_X86_MISC_H
+
+int num_digits(int val);
+
+#endif /* _ASM_X86_MISC_H */
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 6cacab671f9b..d41f3ba26ced 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -73,11 +73,10 @@
 #include <asm/setup.h>
 #include <asm/uv/uv.h>
 #include <linux/mc146818rtc.h>
-
 #include <asm/smpboot_hooks.h>
 #include <asm/i8259.h>
-
 #include <asm/realmode.h>
+#include <asm/misc.h>
 
 /* State of each CPU */
 DEFINE_PER_CPU(int, cpu_state) = { 0 };
@@ -653,17 +652,27 @@ static void announce_cpu(int cpu, int apicid)
 {
 	static int current_node = -1;
 	int node = early_cpu_to_node(cpu);
-	int max_cpu_present = find_last_bit(cpumask_bits(cpu_present_mask), NR_CPUS);
+	static int width;
+
+	if (!width)
+		width = num_digits(num_possible_cpus()) + 1; /* + '#' sign */
 
 	if (system_state == SYSTEM_BOOTING) {
 		if (node != current_node) {
 			if (current_node > (-1))
 				pr_cont(" OK\n");
 			current_node = node;
-			pr_info("Booting Node %3d, Processors ", node);
+			pr_info("Booting Node %3d, Processors:", node);
 		}
-		pr_cont(" #%4d%s", cpu, cpu == max_cpu_present ? " OK\n" : "");
-		return;
+
+		/* Add padding for the BSP */
+		if (cpu == 1)
+			pr_cont("%*s", width + 1, " ");
+
+		pr_cont("%*s#%d", width - num_digits(cpu), " ", cpu);
+
+		if (cpu == num_present_cpus() - 1)
+			pr_cont(" OK\n");
 	} else
 		pr_info("Booting Node %d Processor %d APIC 0x%x\n",
 			node, cpu, apicid);
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile
index 96b2c6697c9d..992d63bb154f 100644
--- a/arch/x86/lib/Makefile
+++ b/arch/x86/lib/Makefile
@@ -16,7 +16,7 @@ clean-files := inat-tables.c
 
 obj-$(CONFIG_SMP) += msr-smp.o cache-smp.o
 
-lib-y := delay.o
+lib-y := delay.o misc.o
 lib-y += thunk_$(BITS).o
 lib-y += usercopy_$(BITS).o usercopy.o getuser.o putuser.o
 lib-y += memcpy_$(BITS).o
diff --git a/arch/x86/lib/misc.c b/arch/x86/lib/misc.c
new file mode 100644
index 000000000000..bc35cde9769f
--- /dev/null
+++ b/arch/x86/lib/misc.c
@@ -0,0 +1,11 @@
+int num_digits(int val)
+{
+	int digits = 0;
+
+	while (val) {
+		val /= 10;
+		digits++;
+	}
+
+	return digits;
+}
-- 
cgit 


From 09f33c332018be05cdaebf14a75ea232810948d0 Mon Sep 17 00:00:00 2001
From: Jonathan Cameron <jic23@kernel.org>
Date: Wed, 25 Sep 2013 21:37:00 +0100
Subject: iio:ti_am335x_adc ensure that IIO_KFIFO_BUF is not selected witout
 IIO_BUFFER

This avoids build problems such iio_push_to_buffers* not being defined.

Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
---
 drivers/iio/adc/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 8b885188b839..2209f28441e9 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -177,6 +177,7 @@ config TI_ADC081C
 config TI_AM335X_ADC
 	tristate "TI's AM335X ADC driver"
 	depends on MFD_TI_AM335X_TSCADC
+	select IIO_BUFFER
 	select IIO_KFIFO_BUF
 	help
 	  Say yes here to build support for Texas Instruments ADC
-- 
cgit 


From 85528e881dc35662b53d79fc1b56526c8c794d26 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Fri, 27 Sep 2013 14:50:00 +0100
Subject: staging:iio:iio-trig-bfin-timer: Fix compile error
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This patch fixes the following compile errors for the iio-trig-bfin-timer
driver:
	drivers/staging/iio/trigger/iio-trig-bfin-timer.c: In function ‘iio_bfin_tmr_frequency_store’:
	drivers/staging/iio/trigger/iio-trig-bfin-timer.c:121: error: invalid storage class for function ‘iio_bfin_tmr_frequency_show’
	drivers/staging/iio/trigger/iio-trig-bfin-timer.c:118: warning: ISO C90 forbids mixed declarations and code
	drivers/staging/iio/trigger/iio-trig-bfin-timer.c:135: error: initializer element is not constant
	...

The issue was introduced in commit e5e26dd5 ("staging: iio: replace
strict_strto*() with kstrto*()") by leaving an excess opening bracket.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/trigger/iio-trig-bfin-timer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
index ebb189c68d88..26e1ca0b7800 100644
--- a/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
+++ b/drivers/staging/iio/trigger/iio-trig-bfin-timer.c
@@ -91,7 +91,7 @@ static ssize_t iio_bfin_tmr_frequency_store(struct device *dev,
 	if (ret)
 		return ret;
 
-	if (val > 100000) {
+	if (val > 100000)
 		return -EINVAL;
 
 	enabled = get_enabled_gptimers() & st->t->bit;
-- 
cgit 


From 10a485c55ae8d313194afc7a8c65df3ac7c048a1 Mon Sep 17 00:00:00 2001
From: Denis CIOCCA <denis.ciocca@st.com>
Date: Mon, 23 Sep 2013 11:49:00 +0100
Subject: iio:trigger: fix sysfs name on list mutex

Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/trigger/iio-trig-sysfs.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/iio/trigger/iio-trig-sysfs.c b/drivers/iio/trigger/iio-trig-sysfs.c
index effcd0ac98d8..15e3b850f513 100644
--- a/drivers/iio/trigger/iio-trig-sysfs.c
+++ b/drivers/iio/trigger/iio-trig-sysfs.c
@@ -23,7 +23,7 @@ struct iio_sysfs_trig {
 };
 
 static LIST_HEAD(iio_sysfs_trig_list);
-static DEFINE_MUTEX(iio_syfs_trig_list_mut);
+static DEFINE_MUTEX(iio_sysfs_trig_list_mut);
 
 static int iio_sysfs_trigger_probe(int id);
 static ssize_t iio_sysfs_trig_add(struct device *dev,
@@ -135,7 +135,7 @@ static int iio_sysfs_trigger_probe(int id)
 	struct iio_sysfs_trig *t;
 	int ret;
 	bool foundit = false;
-	mutex_lock(&iio_syfs_trig_list_mut);
+	mutex_lock(&iio_sysfs_trig_list_mut);
 	list_for_each_entry(t, &iio_sysfs_trig_list, l)
 		if (id == t->id) {
 			foundit = true;
@@ -169,7 +169,7 @@ static int iio_sysfs_trigger_probe(int id)
 		goto out2;
 	list_add(&t->l, &iio_sysfs_trig_list);
 	__module_get(THIS_MODULE);
-	mutex_unlock(&iio_syfs_trig_list_mut);
+	mutex_unlock(&iio_sysfs_trig_list_mut);
 	return 0;
 
 out2:
@@ -177,7 +177,7 @@ out2:
 free_t:
 	kfree(t);
 out1:
-	mutex_unlock(&iio_syfs_trig_list_mut);
+	mutex_unlock(&iio_sysfs_trig_list_mut);
 	return ret;
 }
 
@@ -185,14 +185,14 @@ static int iio_sysfs_trigger_remove(int id)
 {
 	bool foundit = false;
 	struct iio_sysfs_trig *t;
-	mutex_lock(&iio_syfs_trig_list_mut);
+	mutex_lock(&iio_sysfs_trig_list_mut);
 	list_for_each_entry(t, &iio_sysfs_trig_list, l)
 		if (id == t->id) {
 			foundit = true;
 			break;
 		}
 	if (!foundit) {
-		mutex_unlock(&iio_syfs_trig_list_mut);
+		mutex_unlock(&iio_sysfs_trig_list_mut);
 		return -EINVAL;
 	}
 
@@ -202,7 +202,7 @@ static int iio_sysfs_trigger_remove(int id)
 	list_del(&t->l);
 	kfree(t);
 	module_put(THIS_MODULE);
-	mutex_unlock(&iio_syfs_trig_list_mut);
+	mutex_unlock(&iio_sysfs_trig_list_mut);
 	return 0;
 }
 
-- 
cgit 


From b4e46138f946442608647be58e78e3ad4d15534e Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 27 Sep 2013 21:46:51 -0700
Subject: driver-core: remove struct bus_type.bus_attrs

Now that all in-kernel users of bus_type.bus_attrs have been converted
to use bus_groups instead, the bus_attrs field, and logic surrounding
it, can be removed.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/base/bus.c     | 42 ------------------------------------------
 include/linux/device.h |  2 --
 2 files changed, 44 deletions(-)

diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 4c289ab91357..2cdf29464063 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -846,42 +846,6 @@ struct bus_type *find_bus(char *name)
 }
 #endif  /*  0  */
 
-
-/**
- * bus_add_attrs - Add default attributes for this bus.
- * @bus: Bus that has just been registered.
- */
-
-static int bus_add_attrs(struct bus_type *bus)
-{
-	int error = 0;
-	int i;
-
-	if (bus->bus_attrs) {
-		for (i = 0; bus->bus_attrs[i].attr.name; i++) {
-			error = bus_create_file(bus, &bus->bus_attrs[i]);
-			if (error)
-				goto err;
-		}
-	}
-done:
-	return error;
-err:
-	while (--i >= 0)
-		bus_remove_file(bus, &bus->bus_attrs[i]);
-	goto done;
-}
-
-static void bus_remove_attrs(struct bus_type *bus)
-{
-	int i;
-
-	if (bus->bus_attrs) {
-		for (i = 0; bus->bus_attrs[i].attr.name; i++)
-			bus_remove_file(bus, &bus->bus_attrs[i]);
-	}
-}
-
 static int bus_add_groups(struct bus_type *bus,
 			  const struct attribute_group **groups)
 {
@@ -983,9 +947,6 @@ int bus_register(struct bus_type *bus)
 	if (retval)
 		goto bus_probe_files_fail;
 
-	retval = bus_add_attrs(bus);
-	if (retval)
-		goto bus_attrs_fail;
 	retval = bus_add_groups(bus, bus->bus_groups);
 	if (retval)
 		goto bus_groups_fail;
@@ -994,8 +955,6 @@ int bus_register(struct bus_type *bus)
 	return 0;
 
 bus_groups_fail:
-	bus_remove_attrs(bus);
-bus_attrs_fail:
 	remove_probe_files(bus);
 bus_probe_files_fail:
 	kset_unregister(bus->p->drivers_kset);
@@ -1024,7 +983,6 @@ void bus_unregister(struct bus_type *bus)
 	pr_debug("bus: '%s': unregistering\n", bus->name);
 	if (bus->dev_root)
 		device_unregister(bus->dev_root);
-	bus_remove_attrs(bus);
 	bus_remove_groups(bus, bus->bus_groups);
 	remove_probe_files(bus);
 	kset_unregister(bus->p->drivers_kset);
diff --git a/include/linux/device.h b/include/linux/device.h
index ce690ea34547..89a852e0896d 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -63,7 +63,6 @@ extern void bus_remove_file(struct bus_type *, struct bus_attribute *);
  * @name:	The name of the bus.
  * @dev_name:	Used for subsystems to enumerate devices like ("foo%u", dev->id).
  * @dev_root:	Default device to use as the parent.
- * @bus_attrs:	Default attributes of the bus.
  * @dev_attrs:	Default attributes of the devices on the bus.
  * @drv_attrs:	Default attributes of the device drivers on the bus.
  * @bus_groups:	Default attributes of the bus.
@@ -106,7 +105,6 @@ struct bus_type {
 	const char		*name;
 	const char		*dev_name;
 	struct device		*dev_root;
-	struct bus_attribute	*bus_attrs;	/* use bus_groups instead */
 	struct device_attribute	*dev_attrs;	/* use dev_groups instead */
 	struct driver_attribute	*drv_attrs;	/* use drv_groups instead */
 	const struct attribute_group **bus_groups;
-- 
cgit 


From e18945b159a1cdbc031f1d3b0b7e515a33bdcbf7 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 27 Sep 2013 21:47:21 -0700
Subject: driver-core: remove struct bus_type.drv_attrs

Now that all in-kernel users of bus_type.drv_attrs have been converted
to use drv_groups instead, the drv_attrs field, and logic surrounding
it, can be removed.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/base/bus.c     | 40 ++--------------------------------------
 include/linux/device.h |  2 --
 2 files changed, 2 insertions(+), 40 deletions(-)

diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 2cdf29464063..73f6c2925281 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -591,37 +591,6 @@ void bus_remove_device(struct device *dev)
 	bus_put(dev->bus);
 }
 
-static int driver_add_attrs(struct bus_type *bus, struct device_driver *drv)
-{
-	int error = 0;
-	int i;
-
-	if (bus->drv_attrs) {
-		for (i = 0; bus->drv_attrs[i].attr.name; i++) {
-			error = driver_create_file(drv, &bus->drv_attrs[i]);
-			if (error)
-				goto err;
-		}
-	}
-done:
-	return error;
-err:
-	while (--i >= 0)
-		driver_remove_file(drv, &bus->drv_attrs[i]);
-	goto done;
-}
-
-static void driver_remove_attrs(struct bus_type *bus,
-				struct device_driver *drv)
-{
-	int i;
-
-	if (bus->drv_attrs) {
-		for (i = 0; bus->drv_attrs[i].attr.name; i++)
-			driver_remove_file(drv, &bus->drv_attrs[i]);
-	}
-}
-
 static int __must_check add_bind_files(struct device_driver *drv)
 {
 	int ret;
@@ -720,16 +689,12 @@ int bus_add_driver(struct device_driver *drv)
 		printk(KERN_ERR "%s: uevent attr (%s) failed\n",
 			__func__, drv->name);
 	}
-	error = driver_add_attrs(bus, drv);
+	error = driver_add_groups(drv, bus->drv_groups);
 	if (error) {
 		/* How the hell do we get out of this pickle? Give up */
-		printk(KERN_ERR "%s: driver_add_attrs(%s) failed\n",
-			__func__, drv->name);
-	}
-	error = driver_add_groups(drv, bus->drv_groups);
-	if (error)
 		printk(KERN_ERR "%s: driver_create_groups(%s) failed\n",
 			__func__, drv->name);
+	}
 
 	if (!drv->suppress_bind_attrs) {
 		error = add_bind_files(drv);
@@ -766,7 +731,6 @@ void bus_remove_driver(struct device_driver *drv)
 
 	if (!drv->suppress_bind_attrs)
 		remove_bind_files(drv);
-	driver_remove_attrs(drv->bus, drv);
 	driver_remove_groups(drv, drv->bus->drv_groups);
 	driver_remove_file(drv, &driver_attr_uevent);
 	klist_remove(&drv->p->knode_bus);
diff --git a/include/linux/device.h b/include/linux/device.h
index 89a852e0896d..e7f5b8585380 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -64,7 +64,6 @@ extern void bus_remove_file(struct bus_type *, struct bus_attribute *);
  * @dev_name:	Used for subsystems to enumerate devices like ("foo%u", dev->id).
  * @dev_root:	Default device to use as the parent.
  * @dev_attrs:	Default attributes of the devices on the bus.
- * @drv_attrs:	Default attributes of the device drivers on the bus.
  * @bus_groups:	Default attributes of the bus.
  * @dev_groups:	Default attributes of the devices on the bus.
  * @drv_groups: Default attributes of the device drivers on the bus.
@@ -106,7 +105,6 @@ struct bus_type {
 	const char		*dev_name;
 	struct device		*dev_root;
 	struct device_attribute	*dev_attrs;	/* use dev_groups instead */
-	struct driver_attribute	*drv_attrs;	/* use drv_groups instead */
 	const struct attribute_group **bus_groups;
 	const struct attribute_group **dev_groups;
 	const struct attribute_group **drv_groups;
-- 
cgit 


From 594f88d19d751bd7a8eb967772922aae1e9de845 Mon Sep 17 00:00:00 2001
From: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Date: Thu, 26 Sep 2013 10:42:02 +0100
Subject: Documentation: devicetree: arm: cpus/cpu nodes bindings updates

In order to extend the current cpu nodes bindings to newer CPUs
inclusive of AArch64 and to update support for older ARM CPUs this
patch updates device tree documentation for the cpu nodes bindings.

Main changes:
    - adds 64-bit bindings
    - define usage of #address-cells
    - defines behaviour on pre and post v7 uniprocessor systems
    - adds ARM 11MPcore specific reg property definition

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 Documentation/devicetree/bindings/arm/cpus.txt | 401 ++++++++++++++++++++++---
 1 file changed, 354 insertions(+), 47 deletions(-)

diff --git a/Documentation/devicetree/bindings/arm/cpus.txt b/Documentation/devicetree/bindings/arm/cpus.txt
index f32494dbfe19..91304353eea4 100644
--- a/Documentation/devicetree/bindings/arm/cpus.txt
+++ b/Documentation/devicetree/bindings/arm/cpus.txt
@@ -1,77 +1,384 @@
-* ARM CPUs binding description
+=================
+ARM CPUs bindings
+=================
 
 The device tree allows to describe the layout of CPUs in a system through
 the "cpus" node, which in turn contains a number of subnodes (ie "cpu")
 defining properties for every cpu.
 
-Bindings for CPU nodes follow the ePAPR standard, available from:
-
-http://devicetree.org
-
-For the ARM architecture every CPU node must contain the following properties:
-
-- device_type:	must be "cpu"
-- reg:		property matching the CPU MPIDR[23:0] register bits
-		reg[31:24] bits must be set to 0
-- compatible:	should be one of:
-		"arm,arm1020"
-		"arm,arm1020e"
-		"arm,arm1022"
-		"arm,arm1026"
-		"arm,arm720"
-		"arm,arm740"
-		"arm,arm7tdmi"
-		"arm,arm920"
-		"arm,arm922"
-		"arm,arm925"
-		"arm,arm926"
-		"arm,arm940"
-		"arm,arm946"
-		"arm,arm9tdmi"
-		"arm,cortex-a5"
-		"arm,cortex-a7"
-		"arm,cortex-a8"
-		"arm,cortex-a9"
-		"arm,cortex-a15"
-		"arm,arm1136"
-		"arm,arm1156"
-		"arm,arm1176"
-		"arm,arm11mpcore"
-		"faraday,fa526"
-		"intel,sa110"
-		"intel,sa1100"
-		"marvell,feroceon"
-		"marvell,mohawk"
-		"marvell,xsc3"
-		"marvell,xscale"
-
-Example:
+Bindings for CPU nodes follow the ePAPR v1.1 standard, available from:
+
+https://www.power.org/documentation/epapr-version-1-1/
+
+with updates for 32-bit and 64-bit ARM systems provided in this document.
+
+================================
+Convention used in this document
+================================
+
+This document follows the conventions described in the ePAPR v1.1, with
+the addition:
+
+- square brackets define bitfields, eg reg[7:0] value of the bitfield in
+  the reg property contained in bits 7 down to 0
+
+=====================================
+cpus and cpu node bindings definition
+=====================================
+
+The ARM architecture, in accordance with the ePAPR, requires the cpus and cpu
+nodes to be present and contain the properties described below.
+
+- cpus node
+
+	Description: Container of cpu nodes
+
+	The node name must be "cpus".
+
+	A cpus node must define the following properties:
+
+	- #address-cells
+		Usage: required
+		Value type: <u32>
+
+		Definition depends on ARM architecture version and
+		configuration:
+
+			# On uniprocessor ARM architectures previous to v7
+			  value must be 1, to enable a simple enumeration
+			  scheme for processors that do not have a HW CPU
+			  identification register.
+			# On 32-bit ARM 11 MPcore, ARM v7 or later systems
+			  value must be 1, that corresponds to CPUID/MPIDR
+			  registers sizes.
+			# On ARM v8 64-bit systems value should be set to 2,
+			  that corresponds to the MPIDR_EL1 register size.
+			  If MPIDR_EL1[63:32] value is equal to 0 on all CPUs
+			  in the system, #address-cells can be set to 1, since
+			  MPIDR_EL1[63:32] bits are not used for CPUs
+			  identification.
+	- #size-cells
+		Usage: required
+		Value type: <u32>
+		Definition: must be set to 0
+
+- cpu node
+
+	Description: Describes a CPU in an ARM based system
+
+	PROPERTIES
+
+	- device_type
+		Usage: required
+		Value type: <string>
+		Definition: must be "cpu"
+	- reg
+		Usage and definition depend on ARM architecture version and
+		configuration:
+
+			# On uniprocessor ARM architectures previous to v7
+			  this property is required and must be set to 0.
+
+			# On ARM 11 MPcore based systems this property is
+			  required and matches the CPUID[11:0] register bits.
+
+			  Bits [11:0] in the reg cell must be set to
+			  bits [11:0] in CPU ID register.
+
+			  All other bits in the reg cell must be set to 0.
+
+			# On 32-bit ARM v7 or later systems this property is
+			  required and matches the CPU MPIDR[23:0] register
+			  bits.
+
+			  Bits [23:0] in the reg cell must be set to
+			  bits [23:0] in MPIDR.
+
+			  All other bits in the reg cell must be set to 0.
+
+			# On ARM v8 64-bit systems this property is required
+			  and matches the MPIDR_EL1 register affinity bits.
+
+			  * If cpus node's #address-cells property is set to 2
+
+			    The first reg cell bits [7:0] must be set to
+			    bits [39:32] of MPIDR_EL1.
+
+			    The second reg cell bits [23:0] must be set to
+			    bits [23:0] of MPIDR_EL1.
+
+			  * If cpus node's #address-cells property is set to 1
+
+			    The reg cell bits [23:0] must be set to bits [23:0]
+			    of MPIDR_EL1.
+
+			  All other bits in the reg cells must be set to 0.
+
+	- compatible:
+		Usage: required
+		Value type: <string>
+		Definition: should be one of:
+			    "arm,arm710t"
+			    "arm,arm720t"
+			    "arm,arm740t"
+			    "arm,arm7ej-s"
+			    "arm,arm7tdmi"
+			    "arm,arm7tdmi-s"
+			    "arm,arm9es"
+			    "arm,arm9ej-s"
+			    "arm,arm920t"
+			    "arm,arm922t"
+			    "arm,arm925"
+			    "arm,arm926e-s"
+			    "arm,arm926ej-s"
+			    "arm,arm940t"
+			    "arm,arm946e-s"
+			    "arm,arm966e-s"
+			    "arm,arm968e-s"
+			    "arm,arm9tdmi"
+			    "arm,arm1020e"
+			    "arm,arm1020t"
+			    "arm,arm1022e"
+			    "arm,arm1026ej-s"
+			    "arm,arm1136j-s"
+			    "arm,arm1136jf-s"
+			    "arm,arm1156t2-s"
+			    "arm,arm1156t2f-s"
+			    "arm,arm1176jzf"
+			    "arm,arm1176jz-s"
+			    "arm,arm1176jzf-s"
+			    "arm,arm11mpcore"
+			    "arm,cortex-a5"
+			    "arm,cortex-a7"
+			    "arm,cortex-a8"
+			    "arm,cortex-a9"
+			    "arm,cortex-a15"
+			    "arm,cortex-a53"
+			    "arm,cortex-a57"
+			    "arm,cortex-m0"
+			    "arm,cortex-m0+"
+			    "arm,cortex-m1"
+			    "arm,cortex-m3"
+			    "arm,cortex-m4"
+			    "arm,cortex-r4"
+			    "arm,cortex-r5"
+			    "arm,cortex-r7"
+			    "faraday,fa526"
+			    "intel,sa110"
+			    "intel,sa1100"
+			    "marvell,feroceon"
+			    "marvell,mohawk"
+			    "marvell,pj4a"
+			    "marvell,pj4b"
+			    "marvell,sheeva-v5"
+			    "qcom,krait"
+			    "qcom,scorpion"
+	- enable-method
+		Value type: <stringlist>
+		Usage and definition depend on ARM architecture version.
+			# On ARM v8 64-bit this property is required and must
+			  be one of:
+			     "spin-table"
+			     "psci"
+			# On ARM 32-bit systems this property is optional.
+
+	- cpu-release-addr
+		Usage: required for systems that have an "enable-method"
+		       property value of "spin-table".
+		Value type: <prop-encoded-array>
+		Definition:
+			# On ARM v8 64-bit systems must be a two cell
+			  property identifying a 64-bit zero-initialised
+			  memory location.
+
+Example 1 (dual-cluster big.LITTLE system 32-bit):
 
 	cpus {
 		#size-cells = <0>;
 		#address-cells = <1>;
 
-		CPU0: cpu@0 {
+		cpu@0 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a15";
 			reg = <0x0>;
 		};
 
-		CPU1: cpu@1 {
+		cpu@1 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a15";
 			reg = <0x1>;
 		};
 
-		CPU2: cpu@100 {
+		cpu@100 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a7";
 			reg = <0x100>;
 		};
 
-		CPU3: cpu@101 {
+		cpu@101 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a7";
 			reg = <0x101>;
 		};
 	};
+
+Example 2 (Cortex-A8 uniprocessor 32-bit system):
+
+	cpus {
+		#size-cells = <0>;
+		#address-cells = <1>;
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a8";
+			reg = <0x0>;
+		};
+	};
+
+Example 3 (ARM 926EJ-S uniprocessor 32-bit system):
+
+	cpus {
+		#size-cells = <0>;
+		#address-cells = <1>;
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,arm926ej-s";
+			reg = <0x0>;
+		};
+	};
+
+Example 4 (ARM Cortex-A57 64-bit system):
+
+cpus {
+	#size-cells = <0>;
+	#address-cells = <2>;
+
+	cpu@0 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x0 0x0>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	cpu@1 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x0 0x1>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	cpu@100 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x0 0x100>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	cpu@101 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x0 0x101>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	cpu@10000 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x0 0x10000>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	cpu@10001 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x0 0x10001>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	cpu@10100 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x0 0x10100>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	cpu@10101 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x0 0x10101>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	cpu@100000000 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x1 0x0>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	cpu@100000001 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x1 0x1>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	cpu@100000100 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x1 0x100>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	cpu@100000101 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x1 0x101>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	cpu@100010000 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x1 0x10000>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	cpu@100010001 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x1 0x10001>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	cpu@100010100 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x1 0x10100>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	cpu@100010101 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x1 0x10101>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+};
-- 
cgit 


From deeea72860012324448c779b2f85371b2ebbf80b Mon Sep 17 00:00:00 2001
From: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Date: Thu, 26 Sep 2013 10:42:03 +0100
Subject: Documentation: DT: arm: define CPU topology bindings

The advent of multi-cluster ARM systems requires a mechanism to describe
how in hierarchical terms CPUs are connected in ARM SoCs so that the kernel
can initialize and map resources like IRQs and memory space to specific
group(s) of CPUs.

The CPU topology is made up of multiple hierarchy levels whose bottom
layers (aka leaf nodes in device tree syntax) contain links to the HW
CPUs in the system.

The topology bindings are generic for both 32-bit and 64-bit systems and
lay the groundwork on top of which affinity schemes can be built.

This patch provides the documentation in the kernel required to define the
device tree bindings describing the CPU topology for ARM 32-bit and 64-bit
systems.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 Documentation/devicetree/bindings/arm/topology.txt | 474 +++++++++++++++++++++
 1 file changed, 474 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/topology.txt

diff --git a/Documentation/devicetree/bindings/arm/topology.txt b/Documentation/devicetree/bindings/arm/topology.txt
new file mode 100644
index 000000000000..4aa20e7a424e
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/topology.txt
@@ -0,0 +1,474 @@
+===========================================
+ARM topology binding description
+===========================================
+
+===========================================
+1 - Introduction
+===========================================
+
+In an ARM system, the hierarchy of CPUs is defined through three entities that
+are used to describe the layout of physical CPUs in the system:
+
+- cluster
+- core
+- thread
+
+The cpu nodes (bindings defined in [1]) represent the devices that
+correspond to physical CPUs and are to be mapped to the hierarchy levels.
+
+The bottom hierarchy level sits at core or thread level depending on whether
+symmetric multi-threading (SMT) is supported or not.
+
+For instance in a system where CPUs support SMT, "cpu" nodes represent all
+threads existing in the system and map to the hierarchy level "thread" above.
+In systems where SMT is not supported "cpu" nodes represent all cores present
+in the system and map to the hierarchy level "core" above.
+
+ARM topology bindings allow one to associate cpu nodes with hierarchical groups
+corresponding to the system hierarchy; syntactically they are defined as device
+tree nodes.
+
+The remainder of this document provides the topology bindings for ARM, based
+on the ePAPR standard, available from:
+
+http://www.power.org/documentation/epapr-version-1-1/
+
+If not stated otherwise, whenever a reference to a cpu node phandle is made its
+value must point to a cpu node compliant with the cpu node bindings as
+documented in [1].
+A topology description containing phandles to cpu nodes that are not compliant
+with bindings standardized in [1] is therefore considered invalid.
+
+===========================================
+2 - cpu-map node
+===========================================
+
+The ARM CPU topology is defined within the cpu-map node, which is a direct
+child of the cpus node and provides a container where the actual topology
+nodes are listed.
+
+- cpu-map node
+
+	Usage: Optional - On ARM SMP systems provide CPUs topology to the OS.
+			  ARM uniprocessor systems do not require a topology
+			  description and therefore should not define a
+			  cpu-map node.
+
+	Description: The cpu-map node is just a container node where its
+		     subnodes describe the CPU topology.
+
+	Node name must be "cpu-map".
+
+	The cpu-map node's parent node must be the cpus node.
+
+	The cpu-map node's child nodes can be:
+
+	- one or more cluster nodes
+
+	Any other configuration is considered invalid.
+
+The cpu-map node can only contain three types of child nodes:
+
+- cluster node
+- core node
+- thread node
+
+whose bindings are described in paragraph 3.
+
+The nodes describing the CPU topology (cluster/core/thread) can only be
+defined within the cpu-map node.
+Any other configuration is consider invalid and therefore must be ignored.
+
+===========================================
+2.1 - cpu-map child nodes naming convention
+===========================================
+
+cpu-map child nodes must follow a naming convention where the node name
+must be "clusterN", "coreN", "threadN" depending on the node type (ie
+cluster/core/thread) (where N = {0, 1, ...} is the node number; nodes which
+are siblings within a single common parent node must be given a unique and
+sequential N value, starting from 0).
+cpu-map child nodes which do not share a common parent node can have the same
+name (ie same number N as other cpu-map child nodes at different device tree
+levels) since name uniqueness will be guaranteed by the device tree hierarchy.
+
+===========================================
+3 - cluster/core/thread node bindings
+===========================================
+
+Bindings for cluster/cpu/thread nodes are defined as follows:
+
+- cluster node
+
+	 Description: must be declared within a cpu-map node, one node
+		      per cluster. A system can contain several layers of
+		      clustering and cluster nodes can be contained in parent
+		      cluster nodes.
+
+	The cluster node name must be "clusterN" as described in 2.1 above.
+	A cluster node can not be a leaf node.
+
+	A cluster node's child nodes must be:
+
+	- one or more cluster nodes; or
+	- one or more core nodes
+
+	Any other configuration is considered invalid.
+
+- core node
+
+	Description: must be declared in a cluster node, one node per core in
+		     the cluster. If the system does not support SMT, core
+		     nodes are leaf nodes, otherwise they become containers of
+		     thread nodes.
+
+	The core node name must be "coreN" as described in 2.1 above.
+
+	A core node must be a leaf node if SMT is not supported.
+
+	Properties for core nodes that are leaf nodes:
+
+	- cpu
+		Usage: required
+		Value type: <phandle>
+		Definition: a phandle to the cpu node that corresponds to the
+			    core node.
+
+	If a core node is not a leaf node (CPUs supporting SMT) a core node's
+	child nodes can be:
+
+	- one or more thread nodes
+
+	Any other configuration is considered invalid.
+
+- thread node
+
+	Description: must be declared in a core node, one node per thread
+		     in the core if the system supports SMT. Thread nodes are
+		     always leaf nodes in the device tree.
+
+	The thread node name must be "threadN" as described in 2.1 above.
+
+	A thread node must be a leaf node.
+
+	A thread node must contain the following property:
+
+	- cpu
+		Usage: required
+		Value type: <phandle>
+		Definition: a phandle to the cpu node that corresponds to
+			    the thread node.
+
+===========================================
+4 - Example dts
+===========================================
+
+Example 1 (ARM 64-bit, 16-cpu system, two clusters of clusters):
+
+cpus {
+	#size-cells = <0>;
+	#address-cells = <2>;
+
+	cpu-map {
+		cluster0 {
+			cluster0 {
+				core0 {
+					thread0 {
+						cpu = <&CPU0>;
+					};
+					thread1 {
+						cpu = <&CPU1>;
+					};
+				};
+
+				core1 {
+					thread0 {
+						cpu = <&CPU2>;
+					};
+					thread1 {
+						cpu = <&CPU3>;
+					};
+				};
+			};
+
+			cluster1 {
+				core0 {
+					thread0 {
+						cpu = <&CPU4>;
+					};
+					thread1 {
+						cpu = <&CPU5>;
+					};
+				};
+
+				core1 {
+					thread0 {
+						cpu = <&CPU6>;
+					};
+					thread1 {
+						cpu = <&CPU7>;
+					};
+				};
+			};
+		};
+
+		cluster1 {
+			cluster0 {
+				core0 {
+					thread0 {
+						cpu = <&CPU8>;
+					};
+					thread1 {
+						cpu = <&CPU9>;
+					};
+				};
+				core1 {
+					thread0 {
+						cpu = <&CPU10>;
+					};
+					thread1 {
+						cpu = <&CPU11>;
+					};
+				};
+			};
+
+			cluster1 {
+				core0 {
+					thread0 {
+						cpu = <&CPU12>;
+					};
+					thread1 {
+						cpu = <&CPU13>;
+					};
+				};
+				core1 {
+					thread0 {
+						cpu = <&CPU14>;
+					};
+					thread1 {
+						cpu = <&CPU15>;
+					};
+				};
+			};
+		};
+	};
+
+	CPU0: cpu@0 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x0 0x0>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	CPU1: cpu@1 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x0 0x1>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	CPU2: cpu@100 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x0 0x100>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	CPU3: cpu@101 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x0 0x101>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	CPU4: cpu@10000 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x0 0x10000>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	CPU5: cpu@10001 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x0 0x10001>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	CPU6: cpu@10100 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x0 0x10100>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	CPU7: cpu@10101 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x0 0x10101>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	CPU8: cpu@100000000 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x1 0x0>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	CPU9: cpu@100000001 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x1 0x1>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	CPU10: cpu@100000100 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x1 0x100>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	CPU11: cpu@100000101 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x1 0x101>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	CPU12: cpu@100010000 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x1 0x10000>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	CPU13: cpu@100010001 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x1 0x10001>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	CPU14: cpu@100010100 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x1 0x10100>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+
+	CPU15: cpu@100010101 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a57";
+		reg = <0x1 0x10101>;
+		enable-method = "spin-table";
+		cpu-release-addr = <0 0x20000000>;
+	};
+};
+
+Example 2 (ARM 32-bit, dual-cluster, 8-cpu system, no SMT):
+
+cpus {
+	#size-cells = <0>;
+	#address-cells = <1>;
+
+	cpu-map {
+		cluster0 {
+			core0 {
+				cpu = <&CPU0>;
+			};
+			core1 {
+				cpu = <&CPU1>;
+			};
+			core2 {
+				cpu = <&CPU2>;
+			};
+			core3 {
+				cpu = <&CPU3>;
+			};
+		};
+
+		cluster1 {
+			core0 {
+				cpu = <&CPU4>;
+			};
+			core1 {
+				cpu = <&CPU5>;
+			};
+			core2 {
+				cpu = <&CPU6>;
+			};
+			core3 {
+				cpu = <&CPU7>;
+			};
+		};
+	};
+
+	CPU0: cpu@0 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a15";
+		reg = <0x0>;
+	};
+
+	CPU1: cpu@1 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a15";
+		reg = <0x1>;
+	};
+
+	CPU2: cpu@2 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a15";
+		reg = <0x2>;
+	};
+
+	CPU3: cpu@3 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a15";
+		reg = <0x3>;
+	};
+
+	CPU4: cpu@100 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a7";
+		reg = <0x100>;
+	};
+
+	CPU5: cpu@101 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a7";
+		reg = <0x101>;
+	};
+
+	CPU6: cpu@102 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a7";
+		reg = <0x102>;
+	};
+
+	CPU7: cpu@103 {
+		device_type = "cpu";
+		compatible = "arm,cortex-a7";
+		reg = <0x103>;
+	};
+};
+
+===============================================================================
+[1] ARM Linux kernel documentation
+    Documentation/devicetree/bindings/arm/cpus.txt
-- 
cgit 


From f02db315b8d888570cb0d4496cfbb7e4acb047cb Mon Sep 17 00:00:00 2001
From: Francesco Fusco <ffusco@redhat.com>
Date: Tue, 24 Sep 2013 15:43:08 +0200
Subject: ipv4: IP_TOS and IP_TTL can be specified as ancillary data

This patch enables the IP_TTL and IP_TOS values passed from userspace to
be stored in the ipcm_cookie struct. Three fields are added to the struct:

- the TTL, expressed as __u8.
  The allowed values are in the [1-255].
  A value of 0 means that the TTL is not specified.

- the TOS, expressed as __s16.
  The allowed values are in the range [0,255].
  A value of -1 means that the TOS is not specified.

- the priority, expressed as a char and computed when
  handling the ancillary data.

Signed-off-by: Francesco Fusco <ffusco@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/ip.h       |  3 +++
 net/ipv4/ip_sockglue.c | 20 +++++++++++++++++++-
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/include/net/ip.h b/include/net/ip.h
index c1f192b8cd0e..0135f3823e66 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -56,6 +56,9 @@ struct ipcm_cookie {
 	int			oif;
 	struct ip_options_rcu	*opt;
 	__u8			tx_flags;
+	__u8			ttl;
+	__s16			tos;
+	char			priority;
 };
 
 #define IPCB(skb) ((struct inet_skb_parm*)((skb)->cb))
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index d9c4f113d709..56e34457ac07 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -189,7 +189,7 @@ EXPORT_SYMBOL(ip_cmsg_recv);
 
 int ip_cmsg_send(struct net *net, struct msghdr *msg, struct ipcm_cookie *ipc)
 {
-	int err;
+	int err, val;
 	struct cmsghdr *cmsg;
 
 	for (cmsg = CMSG_FIRSTHDR(msg); cmsg; cmsg = CMSG_NXTHDR(msg, cmsg)) {
@@ -215,6 +215,24 @@ int ip_cmsg_send(struct net *net, struct msghdr *msg, struct ipcm_cookie *ipc)
 			ipc->addr = info->ipi_spec_dst.s_addr;
 			break;
 		}
+		case IP_TTL:
+			if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)))
+				return -EINVAL;
+			val = *(int *)CMSG_DATA(cmsg);
+			if (val < 1 || val > 255)
+				return -EINVAL;
+			ipc->ttl = val;
+			break;
+		case IP_TOS:
+			if (cmsg->cmsg_len != CMSG_LEN(sizeof(int)))
+				return -EINVAL;
+			val = *(int *)CMSG_DATA(cmsg);
+			if (val < 0 || val > 255)
+				return -EINVAL;
+			ipc->tos = val;
+			ipc->priority = rt_tos2priority(ipc->tos);
+			break;
+
 		default:
 			return -EINVAL;
 		}
-- 
cgit 


From aa6615814533c634190019ee3a5b10490026d545 Mon Sep 17 00:00:00 2001
From: Francesco Fusco <ffusco@redhat.com>
Date: Tue, 24 Sep 2013 15:43:09 +0200
Subject: ipv4: processing ancillary IP_TOS or IP_TTL

If IP_TOS or IP_TTL are specified as ancillary data, then sendmsg() sends out
packets with the specified TTL or TOS overriding the socket values specified
with the traditional setsockopt().

The struct inet_cork stores the values of TOS, TTL and priority that are
passed through the struct ipcm_cookie. If there are user-specified TOS
(tos != -1) or TTL (ttl != 0) in the struct ipcm_cookie, these values are
used to override the per-socket values. In case of TOS also the priority
is changed accordingly.

Two helper functions get_rttos and get_rtconn_flags are defined to take
into account the presence of a user specified TOS value when computing
RT_TOS and RT_CONN_FLAGS.

Signed-off-by: Francesco Fusco <ffusco@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/inet_sock.h |  3 +++
 include/net/ip.h        | 11 +++++++++++
 include/net/route.h     |  1 +
 net/ipv4/icmp.c         |  5 +++++
 net/ipv4/ip_output.c    | 13 ++++++++++---
 net/ipv4/ping.c         |  4 +++-
 net/ipv4/raw.c          |  4 +++-
 net/ipv4/udp.c          |  4 +++-
 8 files changed, 39 insertions(+), 6 deletions(-)

diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index 636d203727a2..f3141773c14d 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -103,6 +103,9 @@ struct inet_cork {
 	int			length; /* Total length of all frames */
 	struct dst_entry	*dst;
 	u8			tx_flags;
+	__u8			ttl;
+	__s16			tos;
+	char			priority;
 };
 
 struct inet_cork_full {
diff --git a/include/net/ip.h b/include/net/ip.h
index 0135f3823e66..77b4f9b57c28 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -28,6 +28,7 @@
 #include <linux/skbuff.h>
 
 #include <net/inet_sock.h>
+#include <net/route.h>
 #include <net/snmp.h>
 #include <net/flow.h>
 
@@ -140,6 +141,16 @@ static inline struct sk_buff *ip_finish_skb(struct sock *sk, struct flowi4 *fl4)
 	return __ip_make_skb(sk, fl4, &sk->sk_write_queue, &inet_sk(sk)->cork.base);
 }
 
+static inline __u8 get_rttos(struct ipcm_cookie* ipc, struct inet_sock *inet)
+{
+	return (ipc->tos != -1) ? RT_TOS(ipc->tos) : RT_TOS(inet->tos);
+}
+
+static inline __u8 get_rtconn_flags(struct ipcm_cookie* ipc, struct sock* sk)
+{
+	return (ipc->tos != -1) ? RT_CONN_FLAGS_TOS(sk, ipc->tos) : RT_CONN_FLAGS(sk);
+}
+
 /* datagram.c */
 int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len);
 
diff --git a/include/net/route.h b/include/net/route.h
index 6f572ca66d25..0ad8e0102386 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -39,6 +39,7 @@
 #define RTO_ONLINK	0x01
 
 #define RT_CONN_FLAGS(sk)   (RT_TOS(inet_sk(sk)->tos) | sock_flag(sk, SOCK_LOCALROUTE))
+#define RT_CONN_FLAGS_TOS(sk,tos)   (RT_TOS(tos) | sock_flag(sk, SOCK_LOCALROUTE))
 
 struct fib_nh;
 struct fib_info;
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index 5f7d11a45871..5c0e8bc6e5ba 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c
@@ -353,6 +353,9 @@ static void icmp_reply(struct icmp_bxm *icmp_param, struct sk_buff *skb)
 	saddr = fib_compute_spec_dst(skb);
 	ipc.opt = NULL;
 	ipc.tx_flags = 0;
+	ipc.ttl = 0;
+	ipc.tos = -1;
+
 	if (icmp_param->replyopts.opt.opt.optlen) {
 		ipc.opt = &icmp_param->replyopts.opt;
 		if (ipc.opt->opt.srr)
@@ -608,6 +611,8 @@ void icmp_send(struct sk_buff *skb_in, int type, int code, __be32 info)
 	ipc.addr = iph->saddr;
 	ipc.opt = &icmp_param->replyopts.opt;
 	ipc.tx_flags = 0;
+	ipc.ttl = 0;
+	ipc.tos = -1;
 
 	rt = icmp_route_lookup(net, &fl4, skb_in, iph, saddr, tos,
 			       type, code, icmp_param);
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index a04d872c54f9..7d8357bb2ba6 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -1060,6 +1060,9 @@ static int ip_setup_cork(struct sock *sk, struct inet_cork *cork,
 			 rt->dst.dev->mtu : dst_mtu(&rt->dst);
 	cork->dst = &rt->dst;
 	cork->length = 0;
+	cork->ttl = ipc->ttl;
+	cork->tos = ipc->tos;
+	cork->priority = ipc->priority;
 	cork->tx_flags = ipc->tx_flags;
 
 	return 0;
@@ -1311,7 +1314,9 @@ struct sk_buff *__ip_make_skb(struct sock *sk,
 	if (cork->flags & IPCORK_OPT)
 		opt = cork->opt;
 
-	if (rt->rt_type == RTN_MULTICAST)
+	if (cork->ttl != 0)
+		ttl = cork->ttl;
+	else if (rt->rt_type == RTN_MULTICAST)
 		ttl = inet->mc_ttl;
 	else
 		ttl = ip_select_ttl(inet, &rt->dst);
@@ -1319,7 +1324,7 @@ struct sk_buff *__ip_make_skb(struct sock *sk,
 	iph = ip_hdr(skb);
 	iph->version = 4;
 	iph->ihl = 5;
-	iph->tos = inet->tos;
+	iph->tos = (cork->tos != -1) ? cork->tos : inet->tos;
 	iph->frag_off = df;
 	iph->ttl = ttl;
 	iph->protocol = sk->sk_protocol;
@@ -1331,7 +1336,7 @@ struct sk_buff *__ip_make_skb(struct sock *sk,
 		ip_options_build(skb, opt, cork->addr, rt, 0);
 	}
 
-	skb->priority = sk->sk_priority;
+	skb->priority = (cork->tos != -1) ? cork->priority: sk->sk_priority;
 	skb->mark = sk->sk_mark;
 	/*
 	 * Steal rt from cork.dst to avoid a pair of atomic_inc/atomic_dec
@@ -1481,6 +1486,8 @@ void ip_send_unicast_reply(struct net *net, struct sk_buff *skb, __be32 daddr,
 	ipc.addr = daddr;
 	ipc.opt = NULL;
 	ipc.tx_flags = 0;
+	ipc.ttl = 0;
+	ipc.tos = -1;
 
 	if (replyopts.opt.opt.optlen) {
 		ipc.opt = &replyopts.opt;
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index d7d9882d4cae..706d108e128c 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -713,6 +713,8 @@ int ping_v4_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 	ipc.opt = NULL;
 	ipc.oif = sk->sk_bound_dev_if;
 	ipc.tx_flags = 0;
+	ipc.ttl = 0;
+	ipc.tos = -1;
 
 	sock_tx_timestamp(sk, &ipc.tx_flags);
 
@@ -744,7 +746,7 @@ int ping_v4_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 			return -EINVAL;
 		faddr = ipc.opt->opt.faddr;
 	}
-	tos = RT_TOS(inet->tos);
+	tos = get_rttos(&ipc, inet);
 	if (sock_flag(sk, SOCK_LOCALROUTE) ||
 	    (msg->msg_flags & MSG_DONTROUTE) ||
 	    (ipc.opt && ipc.opt->opt.is_strictroute)) {
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index bfec521c717f..a3fe534c968e 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -517,6 +517,8 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 	ipc.addr = inet->inet_saddr;
 	ipc.opt = NULL;
 	ipc.tx_flags = 0;
+	ipc.ttl = 0;
+	ipc.tos = -1;
 	ipc.oif = sk->sk_bound_dev_if;
 
 	if (msg->msg_controllen) {
@@ -556,7 +558,7 @@ static int raw_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 			daddr = ipc.opt->opt.faddr;
 		}
 	}
-	tos = RT_CONN_FLAGS(sk);
+	tos = get_rtconn_flags(&ipc, sk);
 	if (msg->msg_flags & MSG_DONTROUTE)
 		tos |= RTO_ONLINK;
 
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 74d2c95db57f..22462d947750 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -855,6 +855,8 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 
 	ipc.opt = NULL;
 	ipc.tx_flags = 0;
+	ipc.ttl = 0;
+	ipc.tos = -1;
 
 	getfrag = is_udplite ? udplite_getfrag : ip_generic_getfrag;
 
@@ -938,7 +940,7 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 		faddr = ipc.opt->opt.faddr;
 		connected = 0;
 	}
-	tos = RT_TOS(inet->tos);
+	tos = get_rttos(&ipc, inet);
 	if (sock_flag(sk, SOCK_LOCALROUTE) ||
 	    (msg->msg_flags & MSG_DONTROUTE) ||
 	    (ipc.opt && ipc.opt->opt.is_strictroute)) {
-- 
cgit 


From bd8e012b5d369933f50842294372ed580f5d9605 Mon Sep 17 00:00:00 2001
From: Yuval Mintz <yuvalmin@broadcom.com>
Date: Sat, 28 Sep 2013 08:46:07 +0300
Subject: bnx2x: Test nvram when interface is down

Since commit 3fb43eb ("bnx2x: Change to D3hot only on removal") nvram
is accessible whenever the driver is loaded - Thus it is possible to
test it during self-test even if the interface is down

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index 324de5f05332..120966c5f1cf 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -2900,9 +2900,16 @@ static void bnx2x_self_test(struct net_device *dev,
 
 	memset(buf, 0, sizeof(u64) * BNX2X_NUM_TESTS(bp));
 
+	if (bnx2x_test_nvram(bp) != 0) {
+		if (!IS_MF(bp))
+			buf[4] = 1;
+		else
+			buf[0] = 1;
+		etest->flags |= ETH_TEST_FL_FAILED;
+	}
+
 	if (!netif_running(dev)) {
-		DP(BNX2X_MSG_ETHTOOL,
-		   "Can't perform self-test when interface is down\n");
+		DP(BNX2X_MSG_ETHTOOL, "Interface is down\n");
 		return;
 	}
 
@@ -2964,13 +2971,7 @@ static void bnx2x_self_test(struct net_device *dev,
 		/* wait until link state is restored */
 		bnx2x_wait_for_link(bp, link_up, is_serdes);
 	}
-	if (bnx2x_test_nvram(bp) != 0) {
-		if (!IS_MF(bp))
-			buf[4] = 1;
-		else
-			buf[0] = 1;
-		etest->flags |= ETH_TEST_FL_FAILED;
-	}
+
 	if (bnx2x_test_intr(bp) != 0) {
 		if (!IS_MF(bp))
 			buf[5] = 1;
-- 
cgit 


From 75543741f89e513b26866c1a15d71c9efecef6b5 Mon Sep 17 00:00:00 2001
From: Yuval Mintz <yuvalmin@broadcom.com>
Date: Sat, 28 Sep 2013 08:46:08 +0300
Subject: bnx2x: Correct VF driver info

When running ethtool on VF interfaces, returning values should indicate
that the interface does not support self-test or register dump.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x.h         | 2 +-
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index 97b3d32a98bd..a38d04942e7f 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -2231,7 +2231,7 @@ void bnx2x_igu_clear_sb_gen(struct bnx2x *bp, u8 func, u8 idu_sb_id,
 #define BNX2X_NUM_TESTS_SF		7
 #define BNX2X_NUM_TESTS_MF		3
 #define BNX2X_NUM_TESTS(bp)		(IS_MF(bp) ? BNX2X_NUM_TESTS_MF : \
-						     BNX2X_NUM_TESTS_SF)
+					     IS_VF(bp) ? 0 : BNX2X_NUM_TESTS_SF)
 
 #define BNX2X_PHY_LOOPBACK		0
 #define BNX2X_MAC_LOOPBACK		1
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
index 120966c5f1cf..8213cc827aae 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_ethtool.c
@@ -639,6 +639,9 @@ static int bnx2x_get_regs_len(struct net_device *dev)
 	struct bnx2x *bp = netdev_priv(dev);
 	int regdump_len = 0;
 
+	if (IS_VF(bp))
+		return 0;
+
 	regdump_len = __bnx2x_get_regs_len(bp);
 	regdump_len *= 4;
 	regdump_len += sizeof(struct dump_header);
-- 
cgit 


From 9a8130bc381592877bdad08f81e9b10147933d16 Mon Sep 17 00:00:00 2001
From: Ariel Elior <ariele@broadcom.com>
Date: Sat, 28 Sep 2013 08:46:09 +0300
Subject: bnx2x: Don't disable/enable SR-IOV when loading

Current bnx2x implementation controls the number of VFs only by
standard sysfs support, and will reject setting the number of VFs
when the PF is not loaded.
As a result, there is no need to schedule a delayed work to enable
SR-IOV when PF is loaded, as the number of VFs at that point
must be 0.

Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c  |  2 +-
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 23 -----------------------
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h |  2 --
 3 files changed, 1 insertion(+), 26 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index a6704b555042..467689f96016 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -11740,7 +11740,7 @@ static int bnx2x_open(struct net_device *dev)
 	rc = bnx2x_nic_load(bp, LOAD_OPEN);
 	if (rc)
 		return rc;
-	return bnx2x_open_epilog(bp);
+	return 0;
 }
 
 /* called with rtnl_lock */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index 7991f10e1a98..03cfee1aa2b8 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -3635,29 +3635,6 @@ alloc_mem_err:
 	return -ENOMEM;
 }
 
-int bnx2x_open_epilog(struct bnx2x *bp)
-{
-	/* Enable sriov via delayed work. This must be done via delayed work
-	 * because it causes the probe of the vf devices to be run, which invoke
-	 * register_netdevice which must have rtnl lock taken. As we are holding
-	 * the lock right now, that could only work if the probe would not take
-	 * the lock. However, as the probe of the vf may be called from other
-	 * contexts as well (such as passthrough to vm fails) it can't assume
-	 * the lock is being held for it. Using delayed work here allows the
-	 * probe code to simply take the lock (i.e. wait for it to be released
-	 * if it is being held). We only want to do this if the number of VFs
-	 * was set before PF driver was loaded.
-	 */
-	if (IS_SRIOV(bp) && BNX2X_NR_VIRTFN(bp)) {
-		smp_mb__before_clear_bit();
-		set_bit(BNX2X_SP_RTNL_ENABLE_SRIOV, &bp->sp_rtnl_state);
-		smp_mb__after_clear_bit();
-		schedule_delayed_work(&bp->sp_rtnl_task, 0);
-	}
-
-	return 0;
-}
-
 void bnx2x_iov_channel_down(struct bnx2x *bp)
 {
 	int vf_idx;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
index 059f0d460af2..1ff6a9366629 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.h
@@ -782,7 +782,6 @@ static inline int bnx2x_vf_headroom(struct bnx2x *bp)
 void bnx2x_pf_set_vfs_vlan(struct bnx2x *bp);
 int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs);
 void bnx2x_iov_channel_down(struct bnx2x *bp);
-int bnx2x_open_epilog(struct bnx2x *bp);
 
 #else /* CONFIG_BNX2X_SRIOV */
 
@@ -842,7 +841,6 @@ static inline int bnx2x_vf_pci_alloc(struct bnx2x *bp) {return 0; }
 static inline void bnx2x_pf_set_vfs_vlan(struct bnx2x *bp) {}
 static inline int bnx2x_sriov_configure(struct pci_dev *dev, int num_vfs) {return 0; }
 static inline void bnx2x_iov_channel_down(struct bnx2x *bp) {}
-static inline int bnx2x_open_epilog(struct bnx2x *bp) {return 0; }
 
 #endif /* CONFIG_BNX2X_SRIOV */
 #endif /* bnx2x_sriov.h */
-- 
cgit 


From d67710ffcc37f96b34ce2af85e19600265655bb3 Mon Sep 17 00:00:00 2001
From: Yaniv Rosner <yanivr@broadcom.com>
Date: Sat, 28 Sep 2013 08:46:10 +0300
Subject: bnx2x: Change function prototype

Change bnx2x_bsc_read function prototype (more of a cosmetic change).

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
index d60a2ea3da19..92112e242f7f 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
@@ -3121,7 +3121,7 @@ static void bnx2x_bsc_module_sel(struct link_params *params)
 }
 
 static int bnx2x_bsc_read(struct link_params *params,
-			  struct bnx2x_phy *phy,
+			  struct bnx2x *bp,
 			  u8 sl_devid,
 			  u16 sl_addr,
 			  u8 lc_addr,
@@ -3130,7 +3130,6 @@ static int bnx2x_bsc_read(struct link_params *params,
 {
 	u32 val, i;
 	int rc = 0;
-	struct bnx2x *bp = params->bp;
 
 	if (xfer_cnt > 16) {
 		DP(NETIF_MSG_LINK, "invalid xfer_cnt %d. Max is 16 bytes\n",
@@ -7886,7 +7885,7 @@ static int bnx2x_warpcore_read_sfp_module_eeprom(struct bnx2x_phy *phy,
 			usleep_range(1000, 2000);
 			bnx2x_warpcore_power_module(params, 1);
 		}
-		rc = bnx2x_bsc_read(params, phy, dev_addr, addr32, 0, byte_cnt,
+		rc = bnx2x_bsc_read(params, bp, dev_addr, addr32, 0, byte_cnt,
 				    data_array);
 	} while ((rc != 0) && (++cnt < I2C_WA_RETRY_CNT));
 
-- 
cgit 


From 7dc950ca590cecb379048eb2581273023afc1796 Mon Sep 17 00:00:00 2001
From: Yaniv Rosner <yanivr@broadcom.com>
Date: Sat, 28 Sep 2013 08:46:11 +0300
Subject: bnx2x: Add support for EXTPHY2 LED mode

Add new LED mode for the BCM848xx to support new board type.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h  |  1 +
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c | 20 +++++++++++++++++---
 2 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
index 32767f6aa33f..cf1df8b62e2c 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_hsi.h
@@ -172,6 +172,7 @@ struct shared_hw_cfg {			 /* NVRAM Offset */
 		#define SHARED_HW_CFG_LED_MAC4                       0x000c0000
 		#define SHARED_HW_CFG_LED_PHY8                       0x000d0000
 		#define SHARED_HW_CFG_LED_EXTPHY1                    0x000e0000
+		#define SHARED_HW_CFG_LED_EXTPHY2                    0x000f0000
 
 
 	#define SHARED_HW_CFG_AN_ENABLE_MASK                0x3f000000
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
index 92112e242f7f..c60cf43eea08 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c
@@ -6344,9 +6344,15 @@ int bnx2x_set_led(struct link_params *params,
 			 * intended override.
 			 */
 			break;
-		} else
+		} else {
+			u32 nig_led_mode = ((params->hw_led_mode <<
+					     SHARED_HW_CFG_LED_MODE_SHIFT) ==
+					    SHARED_HW_CFG_LED_EXTPHY2) ?
+				(SHARED_HW_CFG_LED_PHY1 >>
+				 SHARED_HW_CFG_LED_MODE_SHIFT) : hw_led_mode;
 			REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4,
-			       hw_led_mode);
+			       nig_led_mode);
+		}
 
 		REG_WR(bp, NIG_REG_LED_CONTROL_OVERRIDE_TRAFFIC_P0 + port*4, 0);
 		/* Set blinking rate to ~15.9Hz */
@@ -10608,10 +10614,18 @@ static void bnx2x_848xx_set_link_led(struct bnx2x_phy *phy,
 					 0x40);
 
 		} else {
+			/* EXTPHY2 LED mode indicate that the 100M/1G/10G LED
+			 * sources are all wired through LED1, rather than only
+			 * 10G in other modes.
+			 */
+			val = ((params->hw_led_mode <<
+				SHARED_HW_CFG_LED_MODE_SHIFT) ==
+			       SHARED_HW_CFG_LED_EXTPHY2) ? 0x98 : 0x80;
+
 			bnx2x_cl45_write(bp, phy,
 					 MDIO_PMA_DEVAD,
 					 MDIO_PMA_REG_8481_LED1_MASK,
-					 0x80);
+					 val);
 
 			/* Tell LED3 to blink on source */
 			bnx2x_cl45_read(bp, phy,
-- 
cgit 


From b91e1a1aa5d4f68ea5153bf65c54ebc693c30e4f Mon Sep 17 00:00:00 2001
From: Yuval Mintz <yuvalmin@broadcom.com>
Date: Sat, 28 Sep 2013 08:46:12 +0300
Subject: bnx2x: use pcie_get_minimum_link()

Use common code for getting the pcie link speed/width for debug printing.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x.h      |  6 ----
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 45 +++++++-----------------
 2 files changed, 12 insertions(+), 39 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index a38d04942e7f..8fe4bcb2407d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -2491,11 +2491,5 @@ enum {
 
 #define NUM_MACS	8
 
-enum bnx2x_pci_bus_speed {
-	BNX2X_PCI_LINK_SPEED_2500 = 2500,
-	BNX2X_PCI_LINK_SPEED_5000 = 5000,
-	BNX2X_PCI_LINK_SPEED_8000 = 8000
-};
-
 void bnx2x_set_local_cmng(struct bnx2x *bp);
 #endif /* bnx2x.h */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 467689f96016..654680d25bff 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -12274,28 +12274,6 @@ err_out:
 	return rc;
 }
 
-static void bnx2x_get_pcie_width_speed(struct bnx2x *bp, int *width,
-				       enum bnx2x_pci_bus_speed *speed)
-{
-	u32 link_speed, val = 0;
-
-	pci_read_config_dword(bp->pdev, PCICFG_LINK_CONTROL, &val);
-	*width = (val & PCICFG_LINK_WIDTH) >> PCICFG_LINK_WIDTH_SHIFT;
-
-	link_speed = (val & PCICFG_LINK_SPEED) >> PCICFG_LINK_SPEED_SHIFT;
-
-	switch (link_speed) {
-	case 3:
-		*speed = BNX2X_PCI_LINK_SPEED_8000;
-		break;
-	case 2:
-		*speed = BNX2X_PCI_LINK_SPEED_5000;
-		break;
-	default:
-		*speed = BNX2X_PCI_LINK_SPEED_2500;
-	}
-}
-
 static int bnx2x_check_firmware(struct bnx2x *bp)
 {
 	const struct firmware *firmware = bp->firmware;
@@ -12652,8 +12630,8 @@ static int bnx2x_init_one(struct pci_dev *pdev,
 {
 	struct net_device *dev = NULL;
 	struct bnx2x *bp;
-	int pcie_width;
-	enum bnx2x_pci_bus_speed pcie_speed;
+	enum pcie_link_width pcie_width;
+	enum pci_bus_speed pcie_speed;
 	int rc, max_non_def_sbs;
 	int rx_count, tx_count, rss_count, doorbell_size;
 	int max_cos_est;
@@ -12802,18 +12780,19 @@ static int bnx2x_init_one(struct pci_dev *pdev,
 		dev_addr_add(bp->dev, bp->fip_mac, NETDEV_HW_ADDR_T_SAN);
 		rtnl_unlock();
 	}
-
-	bnx2x_get_pcie_width_speed(bp, &pcie_width, &pcie_speed);
-	BNX2X_DEV_INFO("got pcie width %d and speed %d\n",
-		       pcie_width, pcie_speed);
-
-	BNX2X_DEV_INFO("%s (%c%d) PCI-E x%d %s found at mem %lx, IRQ %d, node addr %pM\n",
+	if (pcie_get_minimum_link(bp->pdev, &pcie_speed, &pcie_width) ||
+	    pcie_speed == PCI_SPEED_UNKNOWN ||
+	    pcie_width == PCIE_LNK_WIDTH_UNKNOWN)
+		BNX2X_DEV_INFO("Failed to determine PCI Express Bandwidth\n");
+	else
+		BNX2X_DEV_INFO(
+		       "%s (%c%d) PCI-E x%d %s found at mem %lx, IRQ %d, node addr %pM\n",
 		       board_info[ent->driver_data].name,
 		       (CHIP_REV(bp) >> 12) + 'A', (CHIP_METAL(bp) >> 4),
 		       pcie_width,
-		       pcie_speed == BNX2X_PCI_LINK_SPEED_2500 ? "2.5GHz" :
-		       pcie_speed == BNX2X_PCI_LINK_SPEED_5000 ? "5.0GHz" :
-		       pcie_speed == BNX2X_PCI_LINK_SPEED_8000 ? "8.0GHz" :
+		       pcie_speed == PCIE_SPEED_2_5GT ? "2.5GHz" :
+		       pcie_speed == PCIE_SPEED_5_0GT ? "5.0GHz" :
+		       pcie_speed == PCIE_SPEED_8_0GT ? "8.0GHz" :
 		       "Unknown",
 		       dev->base_addr, bp->pdev->irq, dev->dev_addr);
 
-- 
cgit 


From 23c147e026bbb41dd26a2bda0404a95ea951072f Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Fri, 27 Sep 2013 15:10:57 +0200
Subject: bonding: correctly verify for the first slave in bond_enslave

After commit 1f718f0f4f97145f4072d2d72dcf85069ca7226d ("bonding: populate
neighbour's private on enslave"), we've moved the actual 'linking' in the
end of the function - so that, once linked, the slave is ready to be used,
and is not still in the process of enslaving.

However, 802.3ad verified if it's the first slave by looking at the

if (bond_first_slave(bond) == new_slave)

which, because we've moved the linking to the end, became broken - on the
first slave bond_first_slave(bond) returns NULL.

Fix this by verifying if the prev_slave, that equals bond_last_slave(), is
actually populated - if it is - then it's not the first slave, and vice
versa.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index d5c3153226b7..0367f8095390 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1557,7 +1557,7 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 		 */
 		bond_set_slave_inactive_flags(new_slave);
 		/* if this is the first slave */
-		if (bond_first_slave(bond) == new_slave) {
+		if (!prev_slave) {
 			SLAVE_AD_INFO(new_slave).id = 1;
 			/* Initialize AD with the number of times that the AD timer is called in 1 second
 			 * can be called only after the mac address of the bond is set
-- 
cgit 


From 746844931ed400eef32edaa069b996eb622bc39a Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Fri, 27 Sep 2013 15:10:58 +0200
Subject: bonding: verify if we still have slaves in bond_3ad_unbind_slave()

After commit 1f718f0f4f97145f4072d2d72dcf85069ca7226d ("bonding: populate
neighbour's private on enslave"), we've moved the unlinking of the slave
to the earliest position possible - so that nobody will see an
half-uninited slave.

However, bond_3ad_unbind_slave() relied that, even while removing the last
slave, it is still accessible - via __get_first_agg() (and, eventually,
bond_first_slave()).

Fix that by verifying if the aggregator return is an actual aggregator, but
not NULL.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_3ad.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index 1337eafe4311..2715ea87d64c 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -2056,7 +2056,9 @@ void bond_3ad_unbind_slave(struct slave *slave)
 				pr_info("%s: Removing an active aggregator\n",
 					slave->bond->dev->name);
 				// select new active aggregator
-				ad_agg_selection_logic(__get_first_agg(port));
+				temp_aggregator = __get_first_agg(port);
+				if (temp_aggregator)
+					ad_agg_selection_logic(temp_aggregator);
 			}
 		}
 	}
-- 
cgit 


From 3c4c88a138f0857b9e77266e09ad147d17629401 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Fri, 27 Sep 2013 16:11:57 +0200
Subject: bonding: remove __get_next_port()

Currently this function is only used in constructs like

for (port = __get_first_port(bond); port; port = __get_next_port(port))

which is basicly the same as

bond_for_each_slave(bond, slave, iter) {
	port = &(SLAVE_AD_INFO(slave).port);

but a more time consuming.

Remove the function and convert the users to bond_for_each_slave().

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_3ad.c | 34 +++++++++-------------------------
 1 file changed, 9 insertions(+), 25 deletions(-)

diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index 2715ea87d64c..c1535f8762d1 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -148,28 +148,6 @@ static inline struct port *__get_first_port(struct bonding *bond)
 	return first_slave ? &(SLAVE_AD_INFO(first_slave).port) : NULL;
 }
 
-/**
- * __get_next_port - get the next port in the bond
- * @port: the port we're looking at
- *
- * Return the port of the slave that is next in line of @port's slave in the
- * bond, or %NULL if it can't be found.
- */
-static inline struct port *__get_next_port(struct port *port)
-{
-	struct bonding *bond = __get_bond_by_port(port);
-	struct slave *slave = port->slave, *slave_next;
-
-	// If there's no bond for this port, or this is the last slave
-	if (bond == NULL)
-		return NULL;
-	slave_next = bond_next_slave(bond, slave);
-	if (!slave_next || bond_is_first_slave(bond, slave_next))
-		return NULL;
-
-	return &(SLAVE_AD_INFO(slave_next).port);
-}
-
 /**
  * __get_first_agg - get the first aggregator in the bond
  * @bond: the bond we're looking at
@@ -2113,8 +2091,10 @@ void bond_3ad_state_machine_handler(struct work_struct *work)
 {
 	struct bonding *bond = container_of(work, struct bonding,
 					    ad_work.work);
-	struct port *port;
 	struct aggregator *aggregator;
+	struct list_head *iter;
+	struct slave *slave;
+	struct port *port;
 
 	read_lock(&bond->lock);
 
@@ -2139,7 +2119,8 @@ void bond_3ad_state_machine_handler(struct work_struct *work)
 	}
 
 	// for each port run the state machines
-	for (port = __get_first_port(bond); port; port = __get_next_port(port)) {
+	bond_for_each_slave(bond, slave, iter) {
+		port = &(SLAVE_AD_INFO(slave).port);
 		if (!port->slave) {
 			pr_warning("%s: Warning: Found an uninitialized port\n",
 				   bond->dev->name);
@@ -2384,9 +2365,12 @@ int __bond_3ad_get_active_agg_info(struct bonding *bond,
 				   struct ad_info *ad_info)
 {
 	struct aggregator *aggregator = NULL;
+	struct list_head *iter;
+	struct slave *slave;
 	struct port *port;
 
-	for (port = __get_first_port(bond); port; port = __get_next_port(port)) {
+	bond_for_each_slave(bond, slave, iter) {
+		port = &(SLAVE_AD_INFO(slave).port);
 		if (port->aggregator && port->aggregator->is_active) {
 			aggregator = port->aggregator;
 			break;
-- 
cgit 


From fe9323dae5a05eb3d582d5546219c601862dd082 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Fri, 27 Sep 2013 16:11:58 +0200
Subject: bonding: remove __get_first_port()

Currently we have only one user of it, so it's kind of useless and just
obfusicates things.

Remove it and move the logic to the only user -
bond_3ad_state_machine_handler().

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_3ad.c | 18 ++++--------------
 1 file changed, 4 insertions(+), 14 deletions(-)

diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index c1535f8762d1..0f86d2bd54b8 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -135,19 +135,6 @@ static inline struct bonding *__get_bond_by_port(struct port *port)
 	return bond_get_bond_by_slave(port->slave);
 }
 
-/**
- * __get_first_port - get the first port in the bond
- * @bond: the bond we're looking at
- *
- * Return the port of the first slave in @bond, or %NULL if it can't be found.
- */
-static inline struct port *__get_first_port(struct bonding *bond)
-{
-	struct slave *first_slave = bond_first_slave(bond);
-
-	return first_slave ? &(SLAVE_AD_INFO(first_slave).port) : NULL;
-}
-
 /**
  * __get_first_agg - get the first aggregator in the bond
  * @bond: the bond we're looking at
@@ -2104,8 +2091,11 @@ void bond_3ad_state_machine_handler(struct work_struct *work)
 
 	// check if agg_select_timer timer after initialize is timed out
 	if (BOND_AD_INFO(bond).agg_select_timer && !(--BOND_AD_INFO(bond).agg_select_timer)) {
+		slave = bond_first_slave(bond);
+		port = slave ? &(SLAVE_AD_INFO(slave).port) : NULL;
+
 		// select the active aggregator for the bond
-		if ((port = __get_first_port(bond))) {
+		if (port) {
 			if (!port->slave) {
 				pr_warning("%s: Warning: bond's first port is uninitialized\n",
 					   bond->dev->name);
-- 
cgit 


From 3e36bb75ce32d0c14a736ca48480fe964491c7fc Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Fri, 27 Sep 2013 16:11:59 +0200
Subject: bonding: make ad_port_selection_logic() use bond_for_each_slave()

Currently, ad_port_selection_logic() uses

for (aggregator = __get_first_agg(port); aggregator;
     aggregator = __get_next_agg(aggregator)) {

construct, however it's suboptimal, difficult to read and understand.

Change it to a standard bond_for_each_slave(), so that we won't need
__get_first/next_agg() and have it more readable.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_3ad.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index 0f86d2bd54b8..8b64ed4722cb 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -1239,12 +1239,17 @@ static void ad_port_selection_logic(struct port *port)
 {
 	struct aggregator *aggregator, *free_aggregator = NULL, *temp_aggregator;
 	struct port *last_port = NULL, *curr_port;
+	struct list_head *iter;
+	struct bonding *bond;
+	struct slave *slave;
 	int found = 0;
 
 	// if the port is already Selected, do nothing
 	if (port->sm_vars & AD_PORT_SELECTED)
 		return;
 
+	bond = __get_bond_by_port(port);
+
 	// if the port is connected to other aggregator, detach it
 	if (port->aggregator) {
 		// detach the port from its former aggregator
@@ -1285,8 +1290,8 @@ static void ad_port_selection_logic(struct port *port)
 		}
 	}
 	// search on all aggregators for a suitable aggregator for this port
-	for (aggregator = __get_first_agg(port); aggregator;
-	     aggregator = __get_next_agg(aggregator)) {
+	bond_for_each_slave(bond, slave, iter) {
+		aggregator = &(SLAVE_AD_INFO(slave).aggregator);
 
 		// keep a free aggregator for later use(if needed)
 		if (!aggregator->lag_ports) {
-- 
cgit 


From 19177e7d554eba7e73d5eadc2c742d602bbec5ae Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Fri, 27 Sep 2013 16:12:00 +0200
Subject: bonding: make __get_active_agg() use bond_for_each_slave()

Currently we're relying on suboptimal construct

for (; aggregator; aggregator = __get_next_agg(aggregator)) {

where aggregator is an argument of __get_active_agg() which is _always_ the
first slave's aggregator - judging by all the callers, comments in the
ad_agg_selection_logic() and by logic.

Convert it to use the standard bond_for_each_slave().

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_3ad.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index 8b64ed4722cb..1109d82d1929 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -720,16 +720,15 @@ static u32 __get_agg_bandwidth(struct aggregator *aggregator)
  */
 static struct aggregator *__get_active_agg(struct aggregator *aggregator)
 {
-	struct aggregator *retval = NULL;
+	struct bonding *bond = aggregator->slave->bond;
+	struct list_head *iter;
+	struct slave *slave;
 
-	for (; aggregator; aggregator = __get_next_agg(aggregator)) {
-		if (aggregator->is_active) {
-			retval = aggregator;
-			break;
-		}
-	}
+	bond_for_each_slave(bond, slave, iter)
+		if (SLAVE_AD_INFO(slave).aggregator.is_active)
+			return &(SLAVE_AD_INFO(slave).aggregator);
 
-	return retval;
+	return NULL;
 }
 
 /**
-- 
cgit 


From bef1fcce41a317a068e6edd2232112afa7e05ab1 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Fri, 27 Sep 2013 16:12:01 +0200
Subject: bonding: make ad_agg_selection_logic() use bond_for_each_slave()

Convert all instances of

for (agg = __get_first_agg(); agg; agg = __get_next_port)

to the standard bond_for_each_slave(). Also, remove the useless checks
before calling bond_3ad_set_carrier() - if we have something NULL - it
would fire long ago, in __get_first/next_port(), per example.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_3ad.c | 22 ++++++++++------------
 1 file changed, 10 insertions(+), 12 deletions(-)

diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index 1109d82d1929..6cd1444e1de2 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -1484,19 +1484,23 @@ static int agg_device_up(const struct aggregator *agg)
 static void ad_agg_selection_logic(struct aggregator *agg)
 {
 	struct aggregator *best, *active, *origin;
+	struct bonding *bond = agg->slave->bond;
+	struct list_head *iter;
+	struct slave *slave;
 	struct port *port;
 
 	origin = agg;
 	active = __get_active_agg(agg);
 	best = (active && agg_device_up(active)) ? active : NULL;
 
-	do {
+	bond_for_each_slave(bond, slave, iter) {
+		agg = &(SLAVE_AD_INFO(slave).aggregator);
+
 		agg->is_active = 0;
 
 		if (agg->num_of_ports && agg_device_up(agg))
 			best = ad_agg_selection_test(best, agg);
-
-	} while ((agg = __get_next_agg(agg)));
+	}
 
 	if (best &&
 	    __get_agg_selection_mode(best->lag_ports) == BOND_AD_STABLE) {
@@ -1534,8 +1538,8 @@ static void ad_agg_selection_logic(struct aggregator *agg)
 			 best->lag_ports, best->slave,
 			 best->slave ? best->slave->dev->name : "NULL");
 
-		for (agg = __get_first_agg(best->lag_ports); agg;
-		     agg = __get_next_agg(agg)) {
+		bond_for_each_slave(bond, slave, iter) {
+			agg = &(SLAVE_AD_INFO(slave).aggregator);
 
 			pr_debug("Agg=%d; P=%d; a k=%d; p k=%d; Ind=%d; Act=%d\n",
 				 agg->aggregator_identifier, agg->num_of_ports,
@@ -1583,13 +1587,7 @@ static void ad_agg_selection_logic(struct aggregator *agg)
 		}
 	}
 
-	if (origin->slave) {
-		struct bonding *bond;
-
-		bond = bond_get_bond_by_slave(origin->slave);
-		if (bond)
-			bond_3ad_set_carrier(bond);
-	}
+	bond_3ad_set_carrier(bond);
 }
 
 /**
-- 
cgit 


From 0b08826478cde26b00e37e59b390371c7c7a7c7a Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Fri, 27 Sep 2013 16:12:02 +0200
Subject: bonding: make bond_3ad_unbind_slave() use bond_for_each_slave()

Convert all instances of

for (agg = __get_first_agg(); agg; agg = __get_next_port)

to the standard bond_for_each_slave().

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_3ad.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index 6cd1444e1de2..6dbb84d8a725 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -1936,6 +1936,9 @@ void bond_3ad_unbind_slave(struct slave *slave)
 	struct port *port, *prev_port, *temp_port;
 	struct aggregator *aggregator, *new_aggregator, *temp_aggregator;
 	int select_new_active_agg = 0;
+	struct bonding *bond = slave->bond;
+	struct slave *slave_iter;
+	struct list_head *iter;
 
 	// find the aggregator related to this slave
 	aggregator = &(SLAVE_AD_INFO(slave).aggregator);
@@ -1965,14 +1968,16 @@ void bond_3ad_unbind_slave(struct slave *slave)
 		// reason to search for new aggregator, and that we will find one
 		if ((aggregator->lag_ports != port) || (aggregator->lag_ports->next_port_in_aggregator)) {
 			// find new aggregator for the related port(s)
-			new_aggregator = __get_first_agg(port);
-			for (; new_aggregator; new_aggregator = __get_next_agg(new_aggregator)) {
+			bond_for_each_slave(bond, slave_iter, iter) {
+				new_aggregator = &(SLAVE_AD_INFO(slave_iter).aggregator);
 				// if the new aggregator is empty, or it is connected to our port only
 				if (!new_aggregator->lag_ports
 				    || ((new_aggregator->lag_ports == port)
 					&& !new_aggregator->lag_ports->next_port_in_aggregator))
 					break;
 			}
+			if (!slave_iter)
+				new_aggregator = NULL;
 			// if new aggregator found, copy the aggregator's parameters
 			// and connect the related lag_ports to the new aggregator
 			if ((new_aggregator) && ((!new_aggregator->lag_ports) || ((new_aggregator->lag_ports == port) && !new_aggregator->lag_ports->next_port_in_aggregator))) {
@@ -2032,8 +2037,8 @@ void bond_3ad_unbind_slave(struct slave *slave)
 
 	pr_debug("Unbinding port %d\n", port->actor_port_number);
 	// find the aggregator that this port is connected to
-	temp_aggregator = __get_first_agg(port);
-	for (; temp_aggregator; temp_aggregator = __get_next_agg(temp_aggregator)) {
+	bond_for_each_slave(bond, slave_iter, iter) {
+		temp_aggregator = &(SLAVE_AD_INFO(slave_iter).aggregator);
 		prev_port = NULL;
 		// search the port in the aggregator's related ports
 		for (temp_port = temp_aggregator->lag_ports; temp_port;
-- 
cgit 


From da8f0919adcedb7a7b1d343e20c5d044928726d8 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Fri, 27 Sep 2013 16:12:03 +0200
Subject: bonding: remove unused __get_next_agg()

It has no users, so it's safe to remove it completely.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_3ad.c | 22 ----------------------
 1 file changed, 22 deletions(-)

diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index 6dbb84d8a725..c62606a67f6a 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -155,28 +155,6 @@ static inline struct aggregator *__get_first_agg(struct port *port)
 	return first_slave ? &(SLAVE_AD_INFO(first_slave).aggregator) : NULL;
 }
 
-/**
- * __get_next_agg - get the next aggregator in the bond
- * @aggregator: the aggregator we're looking at
- *
- * Return the aggregator of the slave that is next in line of @aggregator's
- * slave in the bond, or %NULL if it can't be found.
- */
-static inline struct aggregator *__get_next_agg(struct aggregator *aggregator)
-{
-	struct slave *slave = aggregator->slave, *slave_next;
-	struct bonding *bond = bond_get_bond_by_slave(slave);
-
-	// If there's no bond for this aggregator, or this is the last slave
-	if (bond == NULL)
-		return NULL;
-	slave_next = bond_next_slave(bond, slave);
-	if (!slave_next || bond_is_first_slave(bond, slave_next))
-		return NULL;
-
-	return &(SLAVE_AD_INFO(slave_next).aggregator);
-}
-
 /*
  * __agg_has_partner
  *
-- 
cgit 


From f965084535713d952c5bb702806fd6052641b9e9 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Fri, 27 Sep 2013 16:12:04 +0200
Subject: bonding: don't use bond_next_slave() in bond_info_seq_next()

We don't need the circular loop there and it's the only current user of
bond_next_slave() - so just use the standard bond_for_each_slave().

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_procfs.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/net/bonding/bond_procfs.c b/drivers/net/bonding/bond_procfs.c
index 7af5646e4410..fb868d6c22da 100644
--- a/drivers/net/bonding/bond_procfs.c
+++ b/drivers/net/bonding/bond_procfs.c
@@ -31,17 +31,25 @@ static void *bond_info_seq_start(struct seq_file *seq, loff_t *pos)
 static void *bond_info_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 {
 	struct bonding *bond = seq->private;
-	struct slave *slave = v;
+	struct list_head *iter;
+	struct slave *slave;
+	bool found = false;
 
 	++*pos;
 	if (v == SEQ_START_TOKEN)
 		return bond_first_slave(bond);
 
-	if (bond_is_last_slave(bond, slave))
+	if (bond_is_last_slave(bond, v))
 		return NULL;
-	slave = bond_next_slave(bond, slave);
 
-	return slave;
+	bond_for_each_slave(bond, slave, iter) {
+		if (found)
+			return slave;
+		if (slave == v)
+			found = true;
+	}
+
+	return NULL;
 }
 
 static void bond_info_seq_stop(struct seq_file *seq, void *v)
-- 
cgit 


From 4aa0a03f519812f48ac48d046bc451e97649ec82 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Fri, 27 Sep 2013 16:12:05 +0200
Subject: bonding: remove bond_next_slave()

There are no users left, so it's safe to remove.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bonding.h | 31 -------------------------------
 1 file changed, 31 deletions(-)

diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 5b71601666cd..713b6af555c7 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -89,9 +89,6 @@
 #define bond_is_first_slave(bond, pos) (pos == bond_first_slave(bond))
 #define bond_is_last_slave(bond, pos) (pos == bond_last_slave(bond))
 
-/* Since bond_first/last_slave can return NULL, these can return NULL too */
-#define bond_next_slave(bond, pos) __bond_next_slave(bond, pos)
-
 /**
  * bond_for_each_slave - iterate over all slaves
  * @bond:	the bond holding this list
@@ -243,34 +240,6 @@ struct bonding {
 #define bond_slave_get_rtnl(dev) \
 	((struct slave *) rtnl_dereference(dev->rx_handler_data))
 
-/**
- * __bond_next_slave - get the next slave after the one provided
- * @bond - bonding struct
- * @slave - the slave provided
- *
- * Returns the next slave after the slave provided, first slave if the
- * slave provided is the last slave and NULL if slave is not found
- */
-static inline struct slave *__bond_next_slave(struct bonding *bond,
-					      struct slave *slave)
-{
-	struct slave *slave_iter;
-	struct list_head *iter;
-	bool found = false;
-
-	netdev_for_each_lower_private(bond->dev, slave_iter, iter) {
-		if (found)
-			return slave_iter;
-		if (slave_iter == slave)
-			found = true;
-	}
-
-	if (found)
-		return bond_first_slave(bond);
-
-	return NULL;
-}
-
 /**
  * Returns NULL if the net_device does not belong to any of the bond's slaves
  *
-- 
cgit 


From 62748f32d501f5d3712a7c372bbb92abc7c62bc7 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 24 Sep 2013 08:20:52 -0700
Subject: net: introduce SO_MAX_PACING_RATE

As mentioned in commit afe4fd062416b ("pkt_sched: fq: Fair Queue packet
scheduler"), this patch adds a new socket option.

SO_MAX_PACING_RATE offers the application the ability to cap the
rate computed by transport layer. Value is in bytes per second.

u32 val = 1000000;
setsockopt(sockfd, SOL_SOCKET, SO_MAX_PACING_RATE, &val, sizeof(val));

To be effectively paced, a flow must use FQ packet scheduler.

Note that a packet scheduler takes into account the headers for its
computations. The effective payload rate depends on MSS and retransmits
if any.

I chose to make this pacing rate a SOL_SOCKET option instead of a
TCP one because this can be used by other protocols.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Steinar H. Gunderson <sesse@google.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/alpha/include/uapi/asm/socket.h   |  4 +++-
 arch/avr32/include/uapi/asm/socket.h   |  2 ++
 arch/cris/include/uapi/asm/socket.h    |  2 ++
 arch/frv/include/uapi/asm/socket.h     |  2 ++
 arch/h8300/include/uapi/asm/socket.h   |  2 ++
 arch/ia64/include/uapi/asm/socket.h    |  2 ++
 arch/m32r/include/uapi/asm/socket.h    |  2 ++
 arch/mips/include/uapi/asm/socket.h    |  2 ++
 arch/mn10300/include/uapi/asm/socket.h |  2 ++
 arch/parisc/include/uapi/asm/socket.h  |  2 ++
 arch/powerpc/include/uapi/asm/socket.h |  2 ++
 arch/s390/include/uapi/asm/socket.h    |  2 ++
 arch/sparc/include/uapi/asm/socket.h   |  2 ++
 arch/xtensa/include/uapi/asm/socket.h  |  2 ++
 include/net/sock.h                     |  1 +
 include/uapi/asm-generic/socket.h      |  2 ++
 net/core/sock.c                        | 12 ++++++++++++
 net/ipv4/tcp_input.c                   |  2 +-
 18 files changed, 45 insertions(+), 2 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h
index 467de010ea7e..e3a1491d5073 100644
--- a/arch/alpha/include/uapi/asm/socket.h
+++ b/arch/alpha/include/uapi/asm/socket.h
@@ -81,6 +81,8 @@
 
 #define SO_SELECT_ERR_QUEUE	45
 
-#define SO_BUSY_POLL			46
+#define SO_BUSY_POLL		46
+
+#define SO_MAX_PACING_RATE	47
 
 #endif /* _UAPI_ASM_SOCKET_H */
diff --git a/arch/avr32/include/uapi/asm/socket.h b/arch/avr32/include/uapi/asm/socket.h
index 11c4259c62fb..439936421434 100644
--- a/arch/avr32/include/uapi/asm/socket.h
+++ b/arch/avr32/include/uapi/asm/socket.h
@@ -76,4 +76,6 @@
 
 #define SO_BUSY_POLL		46
 
+#define SO_MAX_PACING_RATE	47
+
 #endif /* __ASM_AVR32_SOCKET_H */
diff --git a/arch/cris/include/uapi/asm/socket.h b/arch/cris/include/uapi/asm/socket.h
index eb723e51554e..13829aaaeec5 100644
--- a/arch/cris/include/uapi/asm/socket.h
+++ b/arch/cris/include/uapi/asm/socket.h
@@ -78,6 +78,8 @@
 
 #define SO_BUSY_POLL		46
 
+#define SO_MAX_PACING_RATE	47
+
 #endif /* _ASM_SOCKET_H */
 
 
diff --git a/arch/frv/include/uapi/asm/socket.h b/arch/frv/include/uapi/asm/socket.h
index f0cb1c341163..5d4299762426 100644
--- a/arch/frv/include/uapi/asm/socket.h
+++ b/arch/frv/include/uapi/asm/socket.h
@@ -76,5 +76,7 @@
 
 #define SO_BUSY_POLL		46
 
+#define SO_MAX_PACING_RATE	47
+
 #endif /* _ASM_SOCKET_H */
 
diff --git a/arch/h8300/include/uapi/asm/socket.h b/arch/h8300/include/uapi/asm/socket.h
index 9490758c5e2b..214ccaf3554a 100644
--- a/arch/h8300/include/uapi/asm/socket.h
+++ b/arch/h8300/include/uapi/asm/socket.h
@@ -76,4 +76,6 @@
 
 #define SO_BUSY_POLL		46
 
+#define SO_MAX_PACING_RATE	47
+
 #endif /* _ASM_SOCKET_H */
diff --git a/arch/ia64/include/uapi/asm/socket.h b/arch/ia64/include/uapi/asm/socket.h
index 556d0701a155..c25302fb48d9 100644
--- a/arch/ia64/include/uapi/asm/socket.h
+++ b/arch/ia64/include/uapi/asm/socket.h
@@ -85,4 +85,6 @@
 
 #define SO_BUSY_POLL		46
 
+#define SO_MAX_PACING_RATE	47
+
 #endif /* _ASM_IA64_SOCKET_H */
diff --git a/arch/m32r/include/uapi/asm/socket.h b/arch/m32r/include/uapi/asm/socket.h
index 24be7c8da86a..52966650114f 100644
--- a/arch/m32r/include/uapi/asm/socket.h
+++ b/arch/m32r/include/uapi/asm/socket.h
@@ -76,4 +76,6 @@
 
 #define SO_BUSY_POLL		46
 
+#define SO_MAX_PACING_RATE	47
+
 #endif /* _ASM_M32R_SOCKET_H */
diff --git a/arch/mips/include/uapi/asm/socket.h b/arch/mips/include/uapi/asm/socket.h
index 61c01f054d1b..0df9787cd84d 100644
--- a/arch/mips/include/uapi/asm/socket.h
+++ b/arch/mips/include/uapi/asm/socket.h
@@ -94,4 +94,6 @@
 
 #define SO_BUSY_POLL		46
 
+#define SO_MAX_PACING_RATE	47
+
 #endif /* _UAPI_ASM_SOCKET_H */
diff --git a/arch/mn10300/include/uapi/asm/socket.h b/arch/mn10300/include/uapi/asm/socket.h
index e2a2b203eb00..71dedcae55a6 100644
--- a/arch/mn10300/include/uapi/asm/socket.h
+++ b/arch/mn10300/include/uapi/asm/socket.h
@@ -76,4 +76,6 @@
 
 #define SO_BUSY_POLL		46
 
+#define SO_MAX_PACING_RATE	47
+
 #endif /* _ASM_SOCKET_H */
diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h
index 71700e636a8e..7c614d01f1fa 100644
--- a/arch/parisc/include/uapi/asm/socket.h
+++ b/arch/parisc/include/uapi/asm/socket.h
@@ -75,6 +75,8 @@
 
 #define SO_BUSY_POLL		0x4027
 
+#define SO_MAX_PACING_RATE	0x4048
+
 /* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
  * have to define SOCK_NONBLOCK to a different value here.
  */
diff --git a/arch/powerpc/include/uapi/asm/socket.h b/arch/powerpc/include/uapi/asm/socket.h
index a6d74467c9ed..fa698324a1fd 100644
--- a/arch/powerpc/include/uapi/asm/socket.h
+++ b/arch/powerpc/include/uapi/asm/socket.h
@@ -83,4 +83,6 @@
 
 #define SO_BUSY_POLL		46
 
+#define SO_MAX_PACING_RATE	47
+
 #endif	/* _ASM_POWERPC_SOCKET_H */
diff --git a/arch/s390/include/uapi/asm/socket.h b/arch/s390/include/uapi/asm/socket.h
index 92494494692e..c286c2e868f0 100644
--- a/arch/s390/include/uapi/asm/socket.h
+++ b/arch/s390/include/uapi/asm/socket.h
@@ -82,4 +82,6 @@
 
 #define SO_BUSY_POLL		46
 
+#define SO_MAX_PACING_RATE	47
+
 #endif /* _ASM_SOCKET_H */
diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h
index 4e1d66c3ce71..0f21e9a5ca18 100644
--- a/arch/sparc/include/uapi/asm/socket.h
+++ b/arch/sparc/include/uapi/asm/socket.h
@@ -72,6 +72,8 @@
 
 #define SO_BUSY_POLL		0x0030
 
+#define SO_MAX_PACING_RATE	0x0031
+
 /* Security levels - as per NRL IPv6 - don't actually do anything */
 #define SO_SECURITY_AUTHENTICATION		0x5001
 #define SO_SECURITY_ENCRYPTION_TRANSPORT	0x5002
diff --git a/arch/xtensa/include/uapi/asm/socket.h b/arch/xtensa/include/uapi/asm/socket.h
index c114483010c1..7db5c22faa68 100644
--- a/arch/xtensa/include/uapi/asm/socket.h
+++ b/arch/xtensa/include/uapi/asm/socket.h
@@ -87,4 +87,6 @@
 
 #define SO_BUSY_POLL		46
 
+#define SO_MAX_PACING_RATE	47
+
 #endif	/* _XTENSA_SOCKET_H */
diff --git a/include/net/sock.h b/include/net/sock.h
index 4625d2eff461..240aa3f08cd6 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -363,6 +363,7 @@ struct sock {
 	int			sk_wmem_queued;
 	gfp_t			sk_allocation;
 	u32			sk_pacing_rate; /* bytes per second */
+	u32			sk_max_pacing_rate;
 	netdev_features_t	sk_route_caps;
 	netdev_features_t	sk_route_nocaps;
 	int			sk_gso_type;
diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h
index f04b69b6abf2..38f14d0264c3 100644
--- a/include/uapi/asm-generic/socket.h
+++ b/include/uapi/asm-generic/socket.h
@@ -78,4 +78,6 @@
 
 #define SO_BUSY_POLL		46
 
+#define SO_MAX_PACING_RATE	47
+
 #endif /* __ASM_GENERIC_SOCKET_H */
diff --git a/net/core/sock.c b/net/core/sock.c
index 5b6beba494a3..2bd9b3faa0d0 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -914,6 +914,13 @@ set_rcvbuf:
 		}
 		break;
 #endif
+
+	case SO_MAX_PACING_RATE:
+		sk->sk_max_pacing_rate = val;
+		sk->sk_pacing_rate = min(sk->sk_pacing_rate,
+					 sk->sk_max_pacing_rate);
+		break;
+
 	default:
 		ret = -ENOPROTOOPT;
 		break;
@@ -1177,6 +1184,10 @@ int sock_getsockopt(struct socket *sock, int level, int optname,
 		break;
 #endif
 
+	case SO_MAX_PACING_RATE:
+		v.val = sk->sk_max_pacing_rate;
+		break;
+
 	default:
 		return -ENOPROTOOPT;
 	}
@@ -2319,6 +2330,7 @@ void sock_init_data(struct socket *sock, struct sock *sk)
 	sk->sk_ll_usec		=	sysctl_net_busy_read;
 #endif
 
+	sk->sk_max_pacing_rate = ~0U;
 	/*
 	 * Before updating sk_refcnt, we must commit prior changes to memory
 	 * (Documentation/RCU/rculist_nulls.txt for details)
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 5d083855c111..66aa816ad30b 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -735,7 +735,7 @@ static void tcp_update_pacing_rate(struct sock *sk)
 	if (tp->srtt > 8 + 2)
 		do_div(rate, tp->srtt);
 
-	sk->sk_pacing_rate = min_t(u64, rate, ~0U);
+	sk->sk_pacing_rate = min_t(u64, rate, sk->sk_max_pacing_rate);
 }
 
 /* Calculate rto without backoff.  This is the second half of Van Jacobson's
-- 
cgit 


From 3a57291fa4ca7f7647d826f5b47082ef306d839f Mon Sep 17 00:00:00 2001
From: Sean Cross <xobs@kosagi.com>
Date: Thu, 26 Sep 2013 10:51:09 +0800
Subject: ARM: dts: imx6qdl: add pcie device node

Add pcie device node for imx6qdl.

Signed-off-by: Sean Cross <xobs@kosagi.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6qdl.dtsi | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
index ef51342be314..59154dc15fe4 100644
--- a/arch/arm/boot/dts/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/imx6qdl.dtsi
@@ -116,6 +116,22 @@
 			arm,data-latency = <4 2 3>;
 		};
 
+		pcie: pcie@0x01000000 {
+			compatible = "fsl,imx6q-pcie", "snps,dw-pcie";
+			reg = <0x01ffc000 0x4000>; /* DBI */
+			#address-cells = <3>;
+			#size-cells = <2>;
+			device_type = "pci";
+			ranges = <0x00000800 0 0x01f00000 0x01f00000 0 0x00080000 /* configuration space */
+				  0x81000000 0 0          0x01f80000 0 0x00010000 /* downstream I/O */
+				  0x82000000 0 0x01000000 0x01000000 0 0x00f00000>; /* non-prefetchable memory */
+			num-lanes = <1>;
+			interrupts = <0 123 0x04>;
+			clocks = <&clks 189>, <&clks 187>, <&clks 206>, <&clks 144>;
+			clock-names = "pcie_ref_125m", "sata_ref_100m", "lvds_gate", "pcie_axi";
+			status = "disabled";
+		};
+
 		pmu {
 			compatible = "arm,cortex-a9-pmu";
 			interrupts = <0 94 0x04>;
-- 
cgit 


From c986d35e9149295b1f28ea1410b2d84315374fd3 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Fri, 27 Sep 2013 11:12:40 -0300
Subject: ARM: dts: imx6q-sabrelite: Add ethernet phy reset pin into hog

MX6QDL_PAD_EIM_D23__GPIO3_IO23 pin is used to reset the ethernet phy.

Add it to the 'hog' group.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6q-sabrelite.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/imx6q-sabrelite.dts b/arch/arm/boot/dts/imx6q-sabrelite.dts
index e1c1777a80d5..f004913f7d80 100644
--- a/arch/arm/boot/dts/imx6q-sabrelite.dts
+++ b/arch/arm/boot/dts/imx6q-sabrelite.dts
@@ -123,6 +123,7 @@
 				MX6QDL_PAD_SD3_DAT5__GPIO7_IO00 0x80000000
 				MX6QDL_PAD_SD3_DAT4__GPIO7_IO01 0x1f0b0
 				MX6QDL_PAD_GPIO_0__CCM_CLKO1    0x80000000
+				MX6QDL_PAD_EIM_D23__GPIO3_IO23	0x80000000
 			>;
 		};
 	};
-- 
cgit 


From c5f592d1cb64cb46b2bb1ac54734c1247fd1331b Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Fri, 27 Sep 2013 11:12:41 -0300
Subject: ARM: dts: imx6qdl-sabresd: Provide phy-reset-gpios

GPIO1_25 is used to reset the ethernet phy.

Add support for it.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6qdl-sabresd.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
index 64e454bcc4a3..2035d6698ec5 100644
--- a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
@@ -108,6 +108,7 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet_1>;
 	phy-mode = "rgmii";
+	phy-reset-gpios = <&gpio1 25 0>;
 	status = "okay";
 };
 
@@ -172,6 +173,7 @@
 				MX6QDL_PAD_NANDF_CLE__GPIO6_IO07 0x80000000
 				MX6QDL_PAD_ENET_TXD1__GPIO1_IO29 0x80000000
 				MX6QDL_PAD_EIM_D22__GPIO3_IO22  0x80000000
+				MX6QDL_PAD_ENET_CRS_DV__GPIO1_IO25 0x80000000
 			>;
 		};
 	};
-- 
cgit 


From 80121372ec26eb1871e62688f74316f4fd838beb Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Fri, 27 Sep 2013 11:12:42 -0300
Subject: ARM: dts: imx6qdl-wandboard: Provide phy-reset-gpios

GPIO3_29 is used to reset the ethernet phy.

Add support for it.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6qdl-wandboard.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/imx6qdl-wandboard.dtsi b/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
index df42d3ccb70e..35f547929167 100644
--- a/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
@@ -88,6 +88,7 @@
 				MX6QDL_PAD_ENET_RXD1__GPIO1_IO26 0x80000000 /* WL_REG_ON */
 				MX6QDL_PAD_ENET_TXD1__GPIO1_IO29 0x80000000 /* WL_HOST_WAKE */
 				MX6QDL_PAD_ENET_TXD0__GPIO1_IO30 0x80000000 /* WL_WAKE */
+				MX6QDL_PAD_EIM_D29__GPIO3_IO29   0x80000000
 			>;
 		};
 	};
@@ -97,6 +98,7 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_enet_1>;
 	phy-mode = "rgmii";
+	phy-reset-gpios = <&gpio3 29 0>;
 	status = "okay";
 };
 
-- 
cgit 


From 4db7634336156254b179b66f6a9fe90d75c44ee4 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 4 Sep 2013 18:31:14 +0200
Subject: ARM: nomadik: remove mtu initalization from .init_time

Nomadik clock initialization is properly done in clk-nomadik since
patch "clk: nomadik: set all timers to use 2.4 MHz TIMCLK".
Therefore, this patch removes now redundant mtu initialization from
.init_time callback.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-nomadik/cpu-8815.c | 26 --------------------------
 1 file changed, 26 deletions(-)

diff --git a/arch/arm/mach-nomadik/cpu-8815.c b/arch/arm/mach-nomadik/cpu-8815.c
index 13e0df9c11ce..0fcb14966d5a 100644
--- a/arch/arm/mach-nomadik/cpu-8815.c
+++ b/arch/arm/mach-nomadik/cpu-8815.c
@@ -113,36 +113,10 @@ static void cpu8815_restart(enum reboot_mode mode, const char *cmd)
 	writel(1, srcbase + 0x18);
 }
 
-/* Initial value for SRC control register: all timers use MXTAL/8 source */
-#define SRC_CR_INIT_MASK	0x00007fff
-#define SRC_CR_INIT_VAL		0x2aaa8000
-
 static void __init cpu8815_timer_init_of(void)
 {
-	struct device_node *mtu;
-	void __iomem *base;
-	int irq;
-	u32 src_cr;
-
 	/* We need this to be up now */
 	nomadik_clk_init();
-
-	mtu = of_find_node_by_path("/mtu@101e2000");
-	if (!mtu)
-		return;
-	base = of_iomap(mtu, 0);
-	if (WARN_ON(!base))
-		return;
-	irq = irq_of_parse_and_map(mtu, 0);
-
-	pr_info("Remapped MTU @ %p, irq: %d\n", base, irq);
-
-	/* Configure timer sources in "system reset controller" ctrl reg */
-	src_cr = readl(base);
-	src_cr &= SRC_CR_INIT_MASK;
-	src_cr |= SRC_CR_INIT_VAL;
-	writel(src_cr, base);
-
 	clocksource_of_init();
 }
 
-- 
cgit 


From ea25a900f593cd34347ec884b3acac09ffe07667 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Sun, 22 Sep 2013 18:17:28 +0200
Subject: clk: nomadik: move src init out of nomadik_clk_init

nomadik_clk_init currently also maps system reset controller base address
used by clocks and registers a reboot notifier. To allow further cleanup of
nomadik clk setup, this moves system reset controller setup from
nomadik_clk_init to its own function.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Mike Turquette <mturquette@linaro.org>
---
 drivers/clk/clk-nomadik.c | 144 ++++++++++++++++++++++++----------------------
 1 file changed, 74 insertions(+), 70 deletions(-)

diff --git a/drivers/clk/clk-nomadik.c b/drivers/clk/clk-nomadik.c
index 4d978a3c88f7..06b29c264dbe 100644
--- a/drivers/clk/clk-nomadik.c
+++ b/drivers/clk/clk-nomadik.c
@@ -62,6 +62,79 @@ static DEFINE_SPINLOCK(src_lock);
 /* Base address of the SRC */
 static void __iomem *src_base;
 
+static int nomadik_clk_reboot_handler(struct notifier_block *this,
+				unsigned long code,
+				void *unused)
+{
+	u32 val;
+
+	/* The main chrystal need to be enabled for reboot to work */
+	val = readl(src_base + SRC_XTALCR);
+	val &= ~SRC_XTALCR_MXTALOVER;
+	val |= SRC_XTALCR_MXTALEN;
+	pr_crit("force-enabling MXTALO\n");
+	writel(val, src_base + SRC_XTALCR);
+	return NOTIFY_OK;
+}
+
+static struct notifier_block nomadik_clk_reboot_notifier = {
+	.notifier_call = nomadik_clk_reboot_handler,
+};
+
+static const struct of_device_id nomadik_src_match[] __initconst = {
+	{ .compatible = "stericsson,nomadik-src" },
+	{ /* sentinel */ }
+};
+
+static void nomadik_src_init(void)
+{
+	struct device_node *np;
+	u32 val;
+
+	np = of_find_matching_node(NULL, nomadik_src_match);
+	if (!np) {
+		pr_crit("no matching node for SRC, aborting clock init\n");
+		return;
+	}
+	src_base = of_iomap(np, 0);
+	if (!src_base) {
+		pr_err("%s: must have src parent node with REGS (%s)\n",
+		       __func__, np->name);
+		return;
+	}
+
+	/* Set all timers to use the 2.4 MHz TIMCLK */
+	val = readl(src_base + SRC_CR);
+	val |= SRC_CR_T0_ENSEL;
+	val |= SRC_CR_T1_ENSEL;
+	val |= SRC_CR_T2_ENSEL;
+	val |= SRC_CR_T3_ENSEL;
+	val |= SRC_CR_T4_ENSEL;
+	val |= SRC_CR_T5_ENSEL;
+	val |= SRC_CR_T6_ENSEL;
+	val |= SRC_CR_T7_ENSEL;
+	writel(val, src_base + SRC_CR);
+
+	val = readl(src_base + SRC_XTALCR);
+	pr_info("SXTALO is %s\n",
+		(val & SRC_XTALCR_SXTALDIS) ? "disabled" : "enabled");
+	pr_info("MXTAL is %s\n",
+		(val & SRC_XTALCR_MXTALSTAT) ? "enabled" : "disabled");
+	if (of_property_read_bool(np, "disable-sxtalo")) {
+		/* The machine uses an external oscillator circuit */
+		val |= SRC_XTALCR_SXTALDIS;
+		pr_info("disabling SXTALO\n");
+	}
+	if (of_property_read_bool(np, "disable-mxtalo")) {
+		/* Disable this too: also run by external oscillator */
+		val |= SRC_XTALCR_MXTALOVER;
+		val &= ~SRC_XTALCR_MXTALEN;
+		pr_info("disabling MXTALO\n");
+	}
+	writel(val, src_base + SRC_XTALCR);
+	register_reboot_notifier(&nomadik_clk_reboot_notifier);
+}
+
 /**
  * struct clk_pll1 - Nomadik PLL1 clock
  * @hw: corresponding clock hardware entry
@@ -487,11 +560,6 @@ static void __init of_nomadik_src_clk_setup(struct device_node *np)
 		of_clk_add_provider(np, of_clk_src_simple_get, clk);
 }
 
-static const struct of_device_id nomadik_src_match[] __initconst = {
-	{ .compatible = "stericsson,nomadik-src" },
-	{ /* sentinel */ }
-};
-
 static const struct of_device_id nomadik_src_clk_match[] __initconst = {
 	{
 		.compatible = "fixed-clock",
@@ -516,72 +584,8 @@ static const struct of_device_id nomadik_src_clk_match[] __initconst = {
 	{ /* sentinel */ }
 };
 
-static int nomadik_clk_reboot_handler(struct notifier_block *this,
-				unsigned long code,
-				void *unused)
-{
-	u32 val;
-
-	/* The main chrystal need to be enabled for reboot to work */
-	val = readl(src_base + SRC_XTALCR);
-	val &= ~SRC_XTALCR_MXTALOVER;
-	val |= SRC_XTALCR_MXTALEN;
-	pr_crit("force-enabling MXTALO\n");
-	writel(val, src_base + SRC_XTALCR);
-	return NOTIFY_OK;
-}
-
-static struct notifier_block nomadik_clk_reboot_notifier = {
-	.notifier_call = nomadik_clk_reboot_handler,
-};
-
 void __init nomadik_clk_init(void)
 {
-	struct device_node *np;
-	u32 val;
-
-	np = of_find_matching_node(NULL, nomadik_src_match);
-	if (!np) {
-		pr_crit("no matching node for SRC, aborting clock init\n");
-		return;
-	}
-	src_base = of_iomap(np, 0);
-	if (!src_base) {
-		pr_err("%s: must have src parent node with REGS (%s)\n",
-		       __func__, np->name);
-		return;
-	}
-
-	/* Set all timers to use the 2.4 MHz TIMCLK */
-	val = readl(src_base + SRC_CR);
-	val |= SRC_CR_T0_ENSEL;
-	val |= SRC_CR_T1_ENSEL;
-	val |= SRC_CR_T2_ENSEL;
-	val |= SRC_CR_T3_ENSEL;
-	val |= SRC_CR_T4_ENSEL;
-	val |= SRC_CR_T5_ENSEL;
-	val |= SRC_CR_T6_ENSEL;
-	val |= SRC_CR_T7_ENSEL;
-	writel(val, src_base + SRC_CR);
-
-	val = readl(src_base + SRC_XTALCR);
-	pr_info("SXTALO is %s\n",
-		(val & SRC_XTALCR_SXTALDIS) ? "disabled" : "enabled");
-	pr_info("MXTAL is %s\n",
-		(val & SRC_XTALCR_MXTALSTAT) ? "enabled" : "disabled");
-	if (of_property_read_bool(np, "disable-sxtalo")) {
-		/* The machine uses an external oscillator circuit */
-		val |= SRC_XTALCR_SXTALDIS;
-		pr_info("disabling SXTALO\n");
-	}
-	if (of_property_read_bool(np, "disable-mxtalo")) {
-		/* Disable this too: also run by external oscillator */
-		val |= SRC_XTALCR_MXTALOVER;
-		val &= ~SRC_XTALCR_MXTALEN;
-		pr_info("disabling MXTALO\n");
-	}
-	writel(val, src_base + SRC_XTALCR);
-	register_reboot_notifier(&nomadik_clk_reboot_notifier);
-
+	nomadik_src_init();
 	of_clk_init(nomadik_src_clk_match);
 }
-- 
cgit 


From 74227e65f9742f559f6e243ba2c9a983e1f1221d Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Tue, 17 Sep 2013 00:32:34 +0200
Subject: clk: nomadik: declare OF clock provider

Common clock framework allows to register clock providers to get called
on of_clk_init() by using CLK_OF_DECLARE. This converts nomadik clock
provider to make use of it and get rid of the mach specific clk init
call. As clocks require system reset controller base address to be
initialized each clock driver checks src_base and calls new
nomadik_src_init if required.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Mike Turquette <mturquette@linaro.org>
---
 arch/arm/mach-nomadik/cpu-8815.c          |  5 ++--
 drivers/clk/clk-nomadik.c                 | 45 +++++++++++--------------------
 include/linux/platform_data/clk-nomadik.h |  2 --
 3 files changed, 17 insertions(+), 35 deletions(-)
 delete mode 100644 include/linux/platform_data/clk-nomadik.h

diff --git a/arch/arm/mach-nomadik/cpu-8815.c b/arch/arm/mach-nomadik/cpu-8815.c
index 0fcb14966d5a..2be38a00a3d9 100644
--- a/arch/arm/mach-nomadik/cpu-8815.c
+++ b/arch/arm/mach-nomadik/cpu-8815.c
@@ -25,7 +25,7 @@
 #include <linux/slab.h>
 #include <linux/irq.h>
 #include <linux/dma-mapping.h>
-#include <linux/platform_data/clk-nomadik.h>
+#include <linux/clk-provider.h>
 #include <linux/clocksource.h>
 #include <linux/of_irq.h>
 #include <linux/of_gpio.h>
@@ -115,8 +115,7 @@ static void cpu8815_restart(enum reboot_mode mode, const char *cmd)
 
 static void __init cpu8815_timer_init_of(void)
 {
-	/* We need this to be up now */
-	nomadik_clk_init();
+	of_clk_init(NULL);
 	clocksource_of_init();
 }
 
diff --git a/drivers/clk/clk-nomadik.c b/drivers/clk/clk-nomadik.c
index 06b29c264dbe..ce2d6b32e3f5 100644
--- a/drivers/clk/clk-nomadik.c
+++ b/drivers/clk/clk-nomadik.c
@@ -512,6 +512,9 @@ static void __init of_nomadik_pll_setup(struct device_node *np)
 	const char *parent_name;
 	u32 pll_id;
 
+	if (!src_base)
+		nomadik_src_init();
+
 	if (of_property_read_u32(np, "pll-id", &pll_id)) {
 		pr_err("%s: PLL \"%s\" missing pll-id property\n",
 			__func__, clk_name);
@@ -522,6 +525,8 @@ static void __init of_nomadik_pll_setup(struct device_node *np)
 	if (!IS_ERR(clk))
 		of_clk_add_provider(np, of_clk_src_simple_get, clk);
 }
+CLK_OF_DECLARE(nomadik_pll_clk,
+	"st,nomadik-pll-clock", of_nomadik_pll_setup);
 
 static void __init of_nomadik_hclk_setup(struct device_node *np)
 {
@@ -529,6 +534,9 @@ static void __init of_nomadik_hclk_setup(struct device_node *np)
 	const char *clk_name = np->name;
 	const char *parent_name;
 
+	if (!src_base)
+		nomadik_src_init();
+
 	parent_name = of_clk_get_parent_name(np, 0);
 	/*
 	 * The HCLK divides PLL1 with 1 (passthru), 2, 3 or 4.
@@ -541,6 +549,8 @@ static void __init of_nomadik_hclk_setup(struct device_node *np)
 	if (!IS_ERR(clk))
 		of_clk_add_provider(np, of_clk_src_simple_get, clk);
 }
+CLK_OF_DECLARE(nomadik_hclk_clk,
+	"st,nomadik-hclk-clock", of_nomadik_hclk_setup);
 
 static void __init of_nomadik_src_clk_setup(struct device_node *np)
 {
@@ -549,6 +559,9 @@ static void __init of_nomadik_src_clk_setup(struct device_node *np)
 	const char *parent_name;
 	u32 clk_id;
 
+	if (!src_base)
+		nomadik_src_init();
+
 	if (of_property_read_u32(np, "clock-id", &clk_id)) {
 		pr_err("%s: SRC clock \"%s\" missing clock-id property\n",
 			__func__, clk_name);
@@ -559,33 +572,5 @@ static void __init of_nomadik_src_clk_setup(struct device_node *np)
 	if (!IS_ERR(clk))
 		of_clk_add_provider(np, of_clk_src_simple_get, clk);
 }
-
-static const struct of_device_id nomadik_src_clk_match[] __initconst = {
-	{
-		.compatible = "fixed-clock",
-		.data = of_fixed_clk_setup,
-	},
-	{
-		.compatible = "fixed-factor-clock",
-		.data = of_fixed_factor_clk_setup,
-	},
-	{
-		.compatible = "st,nomadik-pll-clock",
-		.data = of_nomadik_pll_setup,
-	},
-	{
-		.compatible = "st,nomadik-hclk-clock",
-		.data = of_nomadik_hclk_setup,
-	},
-	{
-		.compatible = "st,nomadik-src-clock",
-		.data = of_nomadik_src_clk_setup,
-	},
-	{ /* sentinel */ }
-};
-
-void __init nomadik_clk_init(void)
-{
-	nomadik_src_init();
-	of_clk_init(nomadik_src_clk_match);
-}
+CLK_OF_DECLARE(nomadik_src_clk,
+	"st,nomadik-src-clock", of_nomadik_src_clk_setup);
diff --git a/include/linux/platform_data/clk-nomadik.h b/include/linux/platform_data/clk-nomadik.h
deleted file mode 100644
index 5713c87b2477..000000000000
--- a/include/linux/platform_data/clk-nomadik.h
+++ /dev/null
@@ -1,2 +0,0 @@
-/* Minimal platform data header */
-void nomadik_clk_init(void);
-- 
cgit 


From 27966ffe43d412483f0823b15b8c035db04969c7 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 4 Sep 2013 14:21:18 +0200
Subject: clk: prima2: declare OF clock provider

Common clock framework allows to register clock providers to get called
on of_clk_init() by using CLK_OF_DECLARE. This converts prima2 clock
provider to make use of it and get rid of the mach specific clk init
call.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Barry Song <baohua.song@csr.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
---
 arch/arm/mach-prima2/common.c |  4 ++--
 arch/arm/mach-prima2/common.h |  1 -
 drivers/clk/clk-prima2.c      | 29 ++++++-----------------------
 3 files changed, 8 insertions(+), 26 deletions(-)

diff --git a/arch/arm/mach-prima2/common.c b/arch/arm/mach-prima2/common.c
index e110b6d4ae8c..9b7663d9096f 100644
--- a/arch/arm/mach-prima2/common.c
+++ b/arch/arm/mach-prima2/common.c
@@ -6,6 +6,7 @@
  * Licensed under GPLv2 or later.
  */
 
+#include <linux/clk-provider.h>
 #include <linux/clocksource.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -23,8 +24,7 @@ void __init sirfsoc_init_late(void)
 
 static __init void sirfsoc_init_time(void)
 {
-	/* initialize clocking early, we want to set the OS timer */
-	sirfsoc_of_clk_init();
+	of_clk_init(NULL);
 	clocksource_of_init();
 }
 
diff --git a/arch/arm/mach-prima2/common.h b/arch/arm/mach-prima2/common.h
index a6304858474a..4b768060a858 100644
--- a/arch/arm/mach-prima2/common.h
+++ b/arch/arm/mach-prima2/common.h
@@ -23,7 +23,6 @@ extern void sirfsoc_secondary_startup(void);
 extern void sirfsoc_cpu_die(unsigned int cpu);
 
 extern void __init sirfsoc_of_irq_init(void);
-extern void __init sirfsoc_of_clk_init(void);
 extern void sirfsoc_restart(enum reboot_mode, const char *);
 extern asmlinkage void __exception_irq_entry sirfsoc_handle_irq(struct pt_regs *regs);
 
diff --git a/drivers/clk/clk-prima2.c b/drivers/clk/clk-prima2.c
index 5ab95f1ad579..6c15e3316137 100644
--- a/drivers/clk/clk-prima2.c
+++ b/drivers/clk/clk-prima2.c
@@ -1015,16 +1015,6 @@ static struct clk_std clk_usb1 = {
 	},
 };
 
-static struct of_device_id clkc_ids[] = {
-	{ .compatible = "sirf,prima2-clkc" },
-	{},
-};
-
-static struct of_device_id rsc_ids[] = {
-	{ .compatible = "sirf,prima2-rsc" },
-	{},
-};
-
 enum prima2_clk_index {
 	/* 0    1     2      3      4      5      6       7         8      9 */
 	rtc,    osc,   pll1,  pll2,  pll3,  mem,   sys,   security, dsp,   gps,
@@ -1082,24 +1072,16 @@ static struct clk_hw *prima2_clk_hw_array[maxclk] __initdata = {
 static struct clk *prima2_clks[maxclk];
 static struct clk_onecell_data clk_data;
 
-void __init sirfsoc_of_clk_init(void)
+static void __init sirfsoc_clk_init(struct device_node *np)
 {
-	struct device_node *np;
+	struct device_node *rscnp;
 	int i;
 
-	np = of_find_matching_node(NULL, rsc_ids);
-	if (!np)
-		panic("unable to find compatible rsc node in dtb\n");
-
-	sirfsoc_rsc_vbase = of_iomap(np, 0);
+	rscnp = of_find_compatible_node(NULL, NULL, "sirf,prima2-rsc");
+	sirfsoc_rsc_vbase = of_iomap(rscnp, 0);
 	if (!sirfsoc_rsc_vbase)
 		panic("unable to map rsc registers\n");
-
-	of_node_put(np);
-
-	np = of_find_matching_node(NULL, clkc_ids);
-	if (!np)
-		return;
+	of_node_put(rscnp);
 
 	sirfsoc_clk_vbase = of_iomap(np, 0);
 	if (!sirfsoc_clk_vbase)
@@ -1124,3 +1106,4 @@ void __init sirfsoc_of_clk_init(void)
 
 	of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
 }
+CLK_OF_DECLARE(sirfsoc_clk, "sirf,prima2-clkc", sirfsoc_clk_init);
-- 
cgit 


From 8e7b25f1aa9accb8e4c80d0c019d769c979f2ec6 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 4 Sep 2013 13:35:50 +0200
Subject: ARM: socfgpa: prepare for arch-wide .init_time callback

Current socfpga board init calls of_clk_init() from .machine_init. To
allow consolidation of DT driven .time_init, move of_clock_init() to
a temporary .time_init that will be removed when arch-wide callback is
available.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Dinh Nguyen <dinguyen@altera.com>
---
 arch/arm/mach-socfpga/socfpga.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-socfpga/socfpga.c b/arch/arm/mach-socfpga/socfpga.c
index bfce9641e32f..6df7bb9fe64a 100644
--- a/arch/arm/mach-socfpga/socfpga.c
+++ b/arch/arm/mach-socfpga/socfpga.c
@@ -15,6 +15,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #include <linux/clk-provider.h>
+#include <linux/clocksource.h>
 #include <linux/irqchip.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
@@ -90,6 +91,12 @@ static void __init socfpga_init_irq(void)
 	socfpga_sysmgr_init();
 }
 
+static void __init socfpga_init_time(void)
+{
+	of_clk_init(NULL);
+	clocksource_of_init();
+}
+
 static void socfpga_cyclone5_restart(enum reboot_mode mode, const char *cmd)
 {
 	u32 temp;
@@ -107,7 +114,6 @@ static void __init socfpga_cyclone5_init(void)
 {
 	l2x0_of_init(0, ~0UL);
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
-	of_clk_init(NULL);
 	socfpga_init_clocks();
 }
 
@@ -120,6 +126,7 @@ DT_MACHINE_START(SOCFPGA, "Altera SOCFPGA")
 	.smp		= smp_ops(socfpga_smp_ops),
 	.map_io		= socfpga_map_io,
 	.init_irq	= socfpga_init_irq,
+	.init_time	= socfpga_init_time,
 	.init_machine	= socfpga_cyclone5_init,
 	.restart	= socfpga_cyclone5_restart,
 	.dt_compat	= altera_dt_match,
-- 
cgit 


From be0804513a506de96925f9ed1aa8dc1facd4c180 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Fri, 6 Sep 2013 14:59:57 +0200
Subject: clk: sunxi: declare OF clock provider

Common clock framework allows to register clock providers to get called
on of_clk_init() by using CLK_OF_DECLARE. This converts sunxi clock
providers to make use of it and get rid of the mach specific clk init
call. As sunxi has a bunch of independent clk provider nodes, we hook
current clock init to board compatible to make it called once.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
---
 arch/arm/mach-sunxi/sunxi.c   |  4 +---
 drivers/clk/sunxi/clk-sunxi.c | 11 ++++++-----
 include/linux/clk/sunxi.h     | 22 ----------------------
 3 files changed, 7 insertions(+), 30 deletions(-)
 delete mode 100644 include/linux/clk/sunxi.h

diff --git a/arch/arm/mach-sunxi/sunxi.c b/arch/arm/mach-sunxi/sunxi.c
index e79fb3469341..e5a69756427b 100644
--- a/arch/arm/mach-sunxi/sunxi.c
+++ b/arch/arm/mach-sunxi/sunxi.c
@@ -20,8 +20,6 @@
 #include <linux/io.h>
 #include <linux/reboot.h>
 
-#include <linux/clk/sunxi.h>
-
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 #include <asm/system_misc.h>
@@ -118,7 +116,7 @@ static void sunxi_setup_restart(void)
 
 static void __init sunxi_timer_init(void)
 {
-	sunxi_init_clocks();
+	of_clk_init(NULL);
 	clocksource_of_init();
 }
 
diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c
index 34ee69f4d50c..9bbd03514540 100644
--- a/drivers/clk/sunxi/clk-sunxi.c
+++ b/drivers/clk/sunxi/clk-sunxi.c
@@ -16,7 +16,6 @@
 
 #include <linux/clk-provider.h>
 #include <linux/clkdev.h>
-#include <linux/clk/sunxi.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
 
@@ -617,11 +616,8 @@ static void __init of_sunxi_table_clock_setup(const struct of_device_id *clk_mat
 	}
 }
 
-void __init sunxi_init_clocks(void)
+static void __init sunxi_init_clocks(struct device_node *np)
 {
-	/* Register all the simple and basic clocks on DT */
-	of_clk_init(NULL);
-
 	/* Register factor clocks */
 	of_sunxi_table_clock_setup(clk_factors_match, sunxi_factors_clk_setup);
 
@@ -634,3 +630,8 @@ void __init sunxi_init_clocks(void)
 	/* Register gate clocks */
 	of_sunxi_table_clock_setup(clk_gates_match, sunxi_gates_clk_setup);
 }
+CLK_OF_DECLARE(sun4i_a10_clk_init, "allwinner,sun4i-a10", sunxi_init_clocks);
+CLK_OF_DECLARE(sun5i_a10s_clk_init, "allwinner,sun5i-a10s", sunxi_init_clocks);
+CLK_OF_DECLARE(sun5i_a13_clk_init, "allwinner,sun5i-a13", sunxi_init_clocks);
+CLK_OF_DECLARE(sun6i_a31_clk_init, "allwinner,sun6i-a31", sunxi_init_clocks);
+CLK_OF_DECLARE(sun7i_a20_clk_init, "allwinner,sun7i-a20", sunxi_init_clocks);
diff --git a/include/linux/clk/sunxi.h b/include/linux/clk/sunxi.h
deleted file mode 100644
index e074fdd5a236..000000000000
--- a/include/linux/clk/sunxi.h
+++ /dev/null
@@ -1,22 +0,0 @@
-/*
- * Copyright 2012 Maxime Ripard
- *
- * Maxime Ripard <maxime.ripard@free-electrons.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#ifndef __LINUX_CLK_SUNXI_H_
-#define __LINUX_CLK_SUNXI_H_
-
-void __init sunxi_init_clocks(void);
-
-#endif
-- 
cgit 


From f9e4a18de7398bc615f9d45250bdaf31eafc5af6 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 4 Sep 2013 13:58:11 +0200
Subject: clk: vt8500: parse pmc_base from clock driver

Currently, clock providers for vt8500 depend on machine_init providing
pmc_base address before calling of_clk_init. With upcoming arch-wide
.time_init calling of_clk_init, we should make clock providers independent
of mach code. This adds a pmc_base parsing helper to current clock provider
that gets called if there is no pmc_base set, yet.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
Acked-by: Mike Turquette <mturquette@linaro.org>
---
 drivers/clk/clk-vt8500.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/clk/clk-vt8500.c b/drivers/clk/clk-vt8500.c
index 82306f5fb9c2..39fe72aab1e5 100644
--- a/drivers/clk/clk-vt8500.c
+++ b/drivers/clk/clk-vt8500.c
@@ -15,11 +15,14 @@
 
 #include <linux/io.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <linux/slab.h>
 #include <linux/bitops.h>
 #include <linux/clkdev.h>
 #include <linux/clk-provider.h>
 
+#define LEGACY_PMC_BASE		0xD8130000
+
 /* All clocks share the same lock as none can be changed concurrently */
 static DEFINE_SPINLOCK(_lock);
 
@@ -53,6 +56,21 @@ struct clk_pll {
 
 static void __iomem *pmc_base;
 
+static __init void vtwm_set_pmc_base(void)
+{
+	struct device_node *np =
+		of_find_compatible_node(NULL, NULL, "via,vt8500-pmc");
+
+	if (np)
+		pmc_base = of_iomap(np, 0);
+	else
+		pmc_base = ioremap(LEGACY_PMC_BASE, 0x1000);
+	of_node_put(np);
+
+	if (!pmc_base)
+		pr_err("%s:of_iomap(pmc) failed\n", __func__);
+}
+
 #define to_clk_device(_hw) container_of(_hw, struct clk_device, hw)
 
 #define VT8500_PMC_BUSY_MASK		0x18
@@ -222,6 +240,9 @@ static __init void vtwm_device_clk_init(struct device_node *node)
 	int rc;
 	int clk_init_flags = 0;
 
+	if (!pmc_base)
+		vtwm_set_pmc_base();
+
 	dev_clk = kzalloc(sizeof(*dev_clk), GFP_KERNEL);
 	if (WARN_ON(!dev_clk))
 		return;
@@ -636,6 +657,9 @@ static __init void vtwm_pll_clk_init(struct device_node *node, int pll_type)
 	struct clk_init_data init;
 	int rc;
 
+	if (!pmc_base)
+		vtwm_set_pmc_base();
+
 	rc = of_property_read_u32(node, "reg", &reg);
 	if (WARN_ON(rc))
 		return;
-- 
cgit 


From f44089a7f41c88775428f09e90df8fb2b890058a Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 4 Sep 2013 14:09:39 +0200
Subject: ARM: vt8500: prepare for arch-wide .init_time callback

Current vt8500 board init calls of_clk_init() from vtwm_clk_init. To allow
consolidation of DT driven .time_init, move of_clock_init() to a temporary
.time_init callback that will be removed when arch-wide callback is available.
With previous pmc_base parsing helper for vt8500 clock providers, we can also
safely remove the call to vtwm_clk_init() and get rid of some includes.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
Acked-by: Mike Turquette <mturquette@linaro.org>
---
 arch/arm/mach-vt8500/common.h | 24 ------------------------
 arch/arm/mach-vt8500/vt8500.c | 13 ++++++++-----
 drivers/clk/clk-vt8500.c      | 10 ----------
 3 files changed, 8 insertions(+), 39 deletions(-)
 delete mode 100644 arch/arm/mach-vt8500/common.h

diff --git a/arch/arm/mach-vt8500/common.h b/arch/arm/mach-vt8500/common.h
deleted file mode 100644
index 087787af62f1..000000000000
--- a/arch/arm/mach-vt8500/common.h
+++ /dev/null
@@ -1,24 +0,0 @@
-/* linux/arch/arm/mach-vt8500/dt_common.h
- *
- * Copyright (C) 2012 Tony Prisk <linux@prisktech.co.nz>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- */
-
-#ifndef __ARCH_ARM_MACH_VT8500_DT_COMMON_H
-#define __ARCH_ARM_MACH_VT8500_DT_COMMON_H
-
-#include <linux/of.h>
-
-/* defined in drivers/clk/clk-vt8500.c */
-void __init vtwm_clk_init(void __iomem *pmc_base);
-
-#endif
diff --git a/arch/arm/mach-vt8500/vt8500.c b/arch/arm/mach-vt8500/vt8500.c
index eefaa60d6614..504156351b3e 100644
--- a/arch/arm/mach-vt8500/vt8500.c
+++ b/arch/arm/mach-vt8500/vt8500.c
@@ -18,6 +18,7 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#include <linux/clk-provider.h>
 #include <linux/clocksource.h>
 #include <linux/io.h>
 #include <linux/pm.h>
@@ -33,8 +34,6 @@
 #include <linux/of_irq.h>
 #include <linux/of_platform.h>
 
-#include "common.h"
-
 #define LEGACY_GPIO_BASE	0xD8110000
 #define LEGACY_PMC_BASE		0xD8130000
 
@@ -75,6 +74,12 @@ static void vt8500_power_off(void)
 	asm("mcr%? p15, 0, %0, c7, c0, 4" : : "r" (0));
 }
 
+static void __init vt8500_init_time(void)
+{
+	of_clk_init(NULL);
+	clocksource_of_init();
+}
+
 void __init vt8500_init(void)
 {
 	struct device_node *np;
@@ -162,8 +167,6 @@ void __init vt8500_init(void)
 	else
 		pr_err("%s: PMC Hibernation register could not be remapped, not enabling power off!\n", __func__);
 
-	vtwm_clk_init(pmc_base);
-
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }
 
@@ -180,7 +183,7 @@ DT_MACHINE_START(WMT_DT, "VIA/Wondermedia SoC (Device Tree Support)")
 	.dt_compat	= vt8500_dt_compat,
 	.map_io		= vt8500_map_io,
 	.init_machine	= vt8500_init,
-	.init_time	= clocksource_of_init,
+	.init_time	= vt8500_init_time,
 	.restart	= vt8500_restart,
 MACHINE_END
 
diff --git a/drivers/clk/clk-vt8500.c b/drivers/clk/clk-vt8500.c
index 39fe72aab1e5..7fd5c5e9e25d 100644
--- a/drivers/clk/clk-vt8500.c
+++ b/drivers/clk/clk-vt8500.c
@@ -718,13 +718,3 @@ static void __init wm8850_pll_init(struct device_node *node)
 	vtwm_pll_clk_init(node, PLL_TYPE_WM8850);
 }
 CLK_OF_DECLARE(wm8850_pll, "wm,wm8850-pll-clock", wm8850_pll_init);
-
-void __init vtwm_clk_init(void __iomem *base)
-{
-	if (!base)
-		return;
-
-	pmc_base = base;
-
-	of_clk_init(NULL);
-}
-- 
cgit 


From 4178bac4f6e955869395b30246687d41183a5edb Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 4 Sep 2013 12:24:03 +0200
Subject: ARM: call of_clk_init from default time_init handler

Most DT ARM machs require common clock providers initialized before timers.
Currently, arch/arm machs use .init_time to call of_clk_init right before
clocksource_of_init. This prevents to remove that callback and use the default
one instead.

This patch adds a call to of_clk_init() to the default .init_time callback
for COMMON_CLK enabled machs to allow to remove custom callbacks where applicable.
While at it, also reorder includes alphabetically.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
 arch/arm/kernel/time.c | 29 +++++++++++++++++------------
 1 file changed, 17 insertions(+), 12 deletions(-)

diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index 98aee3258398..829a96d4a179 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -11,25 +11,26 @@
  *  This file contains the ARM-specific time handling details:
  *  reading the RTC at bootup, etc...
  */
+#include <linux/clk-provider.h>
+#include <linux/clocksource.h>
+#include <linux/errno.h>
 #include <linux/export.h>
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-#include <linux/time.h>
 #include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/profile.h>
 #include <linux/sched.h>
+#include <linux/sched_clock.h>
 #include <linux/smp.h>
+#include <linux/time.h>
 #include <linux/timex.h>
-#include <linux/errno.h>
-#include <linux/profile.h>
 #include <linux/timer.h>
-#include <linux/clocksource.h>
-#include <linux/irq.h>
-#include <linux/sched_clock.h>
 
-#include <asm/thread_info.h>
-#include <asm/stacktrace.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>
+#include <asm/stacktrace.h>
+#include <asm/thread_info.h>
 
 #if defined(CONFIG_RTC_DRV_CMOS) || defined(CONFIG_RTC_DRV_CMOS_MODULE) || \
     defined(CONFIG_NVRAM) || defined(CONFIG_NVRAM_MODULE)
@@ -116,8 +117,12 @@ int __init register_persistent_clock(clock_access_fn read_boot,
 
 void __init time_init(void)
 {
-	if (machine_desc->init_time)
+	if (machine_desc->init_time) {
 		machine_desc->init_time();
-	else
+	} else {
+#ifdef CONFIG_COMMON_CLK
+		of_clk_init(NULL);
+#endif
 		clocksource_of_init();
+	}
 }
-- 
cgit 


From 2881764d2a3638ec6e35e09df8f8e39338361ad7 Mon Sep 17 00:00:00 2001
From: Matt Porter <matt.porter@linaro.org>
Date: Fri, 20 Sep 2013 15:16:14 -0400
Subject: ARM: bcm: provide common arch init for DT clocks

With arch/arm calling of_clk_init(NULL) and clocksource_of_init()
this is no longer needed. The former is useful because we can make
use of dummy fixed clocks for drivers until the bcm281xx common
clock driver is ready.

Signed-off-by: Matt Porter <matt.porter@linaro.org>
Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
Acked-by: Christian Daudt <csd@broadcom.com>
---
 arch/arm/mach-bcm/board_bcm281xx.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/mach-bcm/board_bcm281xx.c b/arch/arm/mach-bcm/board_bcm281xx.c
index 8d9f931164bb..26b2390492b8 100644
--- a/arch/arm/mach-bcm/board_bcm281xx.c
+++ b/arch/arm/mach-bcm/board_bcm281xx.c
@@ -68,7 +68,6 @@ static void __init board_init(void)
 static const char * const bcm11351_dt_compat[] = { "brcm,bcm11351", NULL, };
 
 DT_MACHINE_START(BCM11351_DT, "Broadcom Application Processor")
-	.init_time = clocksource_of_init,
 	.init_machine = board_init,
 	.restart = bcm_kona_restart,
 	.dt_compat = bcm11351_dt_compat,
-- 
cgit 


From 9f1205d775b6be9cd6d19224e2916147815bc44a Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Tue, 17 Sep 2013 00:38:10 +0200
Subject: ARM: bcm2835: remove custom .init_time hook

With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks. Also remove call to of_clk_init from
clk-bcm2835 with core fixed_clock match, as this has already been
registered now.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Acked-by: Mike Turquette <mturquette@linaro.org>
---
 arch/arm/mach-bcm2835/bcm2835.c | 2 --
 drivers/clk/clk-bcm2835.c       | 8 --------
 2 files changed, 10 deletions(-)

diff --git a/arch/arm/mach-bcm2835/bcm2835.c b/arch/arm/mach-bcm2835/bcm2835.c
index 40686d7ef500..d50135be0c20 100644
--- a/arch/arm/mach-bcm2835/bcm2835.c
+++ b/arch/arm/mach-bcm2835/bcm2835.c
@@ -18,7 +18,6 @@
 #include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/clk/bcm2835.h>
-#include <linux/clocksource.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -134,7 +133,6 @@ DT_MACHINE_START(BCM2835, "BCM2835")
 	.init_irq = bcm2835_init_irq,
 	.handle_irq = bcm2835_handle_irq,
 	.init_machine = bcm2835_init,
-	.init_time = clocksource_of_init,
 	.restart = bcm2835_restart,
 	.dt_compat = bcm2835_compat
 MACHINE_END
diff --git a/drivers/clk/clk-bcm2835.c b/drivers/clk/clk-bcm2835.c
index 5fb4ff53d088..6b950ca8b711 100644
--- a/drivers/clk/clk-bcm2835.c
+++ b/drivers/clk/clk-bcm2835.c
@@ -20,14 +20,8 @@
 #include <linux/clk-provider.h>
 #include <linux/clkdev.h>
 #include <linux/clk/bcm2835.h>
-#include <linux/clk-provider.h>
 #include <linux/of.h>
 
-static const struct of_device_id clk_match[] __initconst = {
-	{ .compatible = "fixed-clock", .data = of_fixed_clk_setup, },
-	{ }
-};
-
 /*
  * These are fixed clocks. They're probably not all root clocks and it may
  * be possible to turn them on and off but until this is mapped out better
@@ -63,6 +57,4 @@ void __init bcm2835_init_clocks(void)
 	ret = clk_register_clkdev(clk, NULL, "20215000.uart");
 	if (ret)
 		pr_err("uart1_pclk alias not registered\n");
-
-	of_clk_init(clk_match);
 }
-- 
cgit 


From 51e40f52d7b5254873eac6f76287b74accaecd64 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Fri, 6 Sep 2013 15:08:36 +0200
Subject: ARM: dove: remove custom .init_time hook

With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks. While at it, also remove some obsolete
includes.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/mach-dove/board-dt.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/arch/arm/mach-dove/board-dt.c b/arch/arm/mach-dove/board-dt.c
index 49f72a848423..ddb86631f16a 100644
--- a/arch/arm/mach-dove/board-dt.c
+++ b/arch/arm/mach-dove/board-dt.c
@@ -10,17 +10,13 @@
 
 #include <linux/init.h>
 #include <linux/clk-provider.h>
-#include <linux/clocksource.h>
-#include <linux/irqchip.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
-#include <linux/platform_data/usb-ehci-orion.h>
 #include <asm/hardware/cache-tauros2.h>
 #include <asm/mach/arch.h>
 #include <mach/dove.h>
 #include <mach/pm.h>
 #include <plat/common.h>
-#include <plat/irq.h>
 #include "common.h"
 
 /*
@@ -45,12 +41,6 @@ static void __init dove_legacy_clk_init(void)
 			 of_clk_get_from_provider(&clkspec));
 }
 
-static void __init dove_dt_time_init(void)
-{
-	of_clk_init(NULL);
-	clocksource_of_init();
-}
-
 static void __init dove_dt_init_early(void)
 {
 	mvebu_mbus_init("marvell,dove-mbus",
@@ -84,7 +74,6 @@ static const char * const dove_dt_board_compat[] = {
 DT_MACHINE_START(DOVE_DT, "Marvell Dove (Flattened Device Tree)")
 	.map_io		= dove_map_io,
 	.init_early	= dove_dt_init_early,
-	.init_time	= dove_dt_time_init,
 	.init_machine	= dove_dt_init,
 	.restart	= dove_restart,
 	.dt_compat	= dove_dt_board_compat,
-- 
cgit 


From e8ecbc7c51a4c27030427db055597fb53e29d0db Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 4 Sep 2013 12:45:59 +0200
Subject: ARM: exynos: remove custom .init_time hook

With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks. While at it, also remove some now
redundant includes.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
---
 arch/arm/mach-exynos/common.c          | 8 --------
 arch/arm/mach-exynos/common.h          | 1 -
 arch/arm/mach-exynos/mach-exynos4-dt.c | 2 --
 arch/arm/mach-exynos/mach-exynos5-dt.c | 2 --
 4 files changed, 13 deletions(-)

diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index ba95e5db2501..a4e7ba828810 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -26,8 +26,6 @@
 #include <linux/export.h>
 #include <linux/irqdomain.h>
 #include <linux/of_address.h>
-#include <linux/clocksource.h>
-#include <linux/clk-provider.h>
 #include <linux/irqchip/arm-gic.h>
 #include <linux/irqchip/chained_irq.h>
 
@@ -367,12 +365,6 @@ static void __init exynos5_map_io(void)
 		iotable_init(exynos5250_iodesc, ARRAY_SIZE(exynos5250_iodesc));
 }
 
-void __init exynos_init_time(void)
-{
-	of_clk_init(NULL);
-	clocksource_of_init();
-}
-
 struct bus_type exynos_subsys = {
 	.name		= "exynos-core",
 	.dev_name	= "exynos-core",
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index 8646a141ae46..f0fa2050d08d 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -16,7 +16,6 @@
 #include <linux/of.h>
 
 void mct_init(void __iomem *base, int irq_g0, int irq_l0, int irq_l1);
-void exynos_init_time(void);
 
 struct map_desc;
 void exynos_init_io(void);
diff --git a/arch/arm/mach-exynos/mach-exynos4-dt.c b/arch/arm/mach-exynos/mach-exynos4-dt.c
index 0099c6c13bba..6858d73dcf48 100644
--- a/arch/arm/mach-exynos/mach-exynos4-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos4-dt.c
@@ -16,7 +16,6 @@
 #include <linux/of_fdt.h>
 #include <linux/serial_core.h>
 #include <linux/memblock.h>
-#include <linux/clocksource.h>
 
 #include <asm/mach/arch.h>
 #include <plat/mfc.h>
@@ -54,7 +53,6 @@ DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)")
 	.init_early	= exynos_firmware_init,
 	.init_machine	= exynos4_dt_machine_init,
 	.init_late	= exynos_init_late,
-	.init_time	= exynos_init_time,
 	.dt_compat	= exynos4_dt_compat,
 	.restart        = exynos4_restart,
 	.reserve	= exynos4_reserve,
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index f874b773ca13..bac21054cec8 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -13,7 +13,6 @@
 #include <linux/of_fdt.h>
 #include <linux/memblock.h>
 #include <linux/io.h>
-#include <linux/clocksource.h>
 
 #include <asm/mach/arch.h>
 #include <mach/regs-pmu.h>
@@ -76,7 +75,6 @@ DT_MACHINE_START(EXYNOS5_DT, "SAMSUNG EXYNOS5 (Flattened Device Tree)")
 	.map_io		= exynos_init_io,
 	.init_machine	= exynos5_dt_machine_init,
 	.init_late	= exynos_init_late,
-	.init_time	= exynos_init_time,
 	.dt_compat	= exynos5_dt_compat,
 	.restart        = exynos5_restart,
 	.reserve	= exynos5_reserve,
-- 
cgit 


From 26cae166cff9148cd2cab40f64ed548ba1189a8e Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Tue, 27 Aug 2013 14:42:06 +0200
Subject: ARM: highbank: remove custom .init_time hook

With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks. Highbank clock provider need a reference
to system registers, as a workaround current clk driver maps those
independent of arch code now.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
---
 arch/arm/mach-highbank/highbank.c | 23 +++++++----------------
 drivers/clk/clk-highbank.c        | 10 +++++++---
 2 files changed, 14 insertions(+), 19 deletions(-)

diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c
index 8e63ccdb0de3..e6d6eacea9d0 100644
--- a/arch/arm/mach-highbank/highbank.c
+++ b/arch/arm/mach-highbank/highbank.c
@@ -24,7 +24,6 @@
 #include <linux/of_platform.h>
 #include <linux/of_address.h>
 #include <linux/amba/bus.h>
-#include <linux/clk-provider.h>
 
 #include <asm/cacheflush.h>
 #include <asm/cputype.h>
@@ -83,20 +82,6 @@ static void __init highbank_init_irq(void)
 	}
 }
 
-static void __init highbank_timer_init(void)
-{
-	struct device_node *np;
-
-	/* Map system registers */
-	np = of_find_compatible_node(NULL, NULL, "calxeda,hb-sregs");
-	sregs_base = of_iomap(np, 0);
-	WARN_ON(!sregs_base);
-
-	of_clk_init(NULL);
-
-	clocksource_of_init();
-}
-
 static void highbank_power_off(void)
 {
 	highbank_set_pwr_shutdown();
@@ -155,6 +140,13 @@ static struct notifier_block highbank_platform_nb = {
 
 static void __init highbank_init(void)
 {
+	struct device_node *np;
+
+	/* Map system registers */
+	np = of_find_compatible_node(NULL, NULL, "calxeda,hb-sregs");
+	sregs_base = of_iomap(np, 0);
+	WARN_ON(!sregs_base);
+
 	pm_power_off = highbank_power_off;
 	highbank_pm_init();
 
@@ -176,7 +168,6 @@ DT_MACHINE_START(HIGHBANK, "Highbank")
 #endif
 	.smp		= smp_ops(highbank_smp_ops),
 	.init_irq	= highbank_init_irq,
-	.init_time	= highbank_timer_init,
 	.init_machine	= highbank_init,
 	.dt_compat	= highbank_match,
 	.restart	= highbank_restart,
diff --git a/drivers/clk/clk-highbank.c b/drivers/clk/clk-highbank.c
index 2e08cb001936..2e7e9d9798cb 100644
--- a/drivers/clk/clk-highbank.c
+++ b/drivers/clk/clk-highbank.c
@@ -20,8 +20,7 @@
 #include <linux/clk-provider.h>
 #include <linux/io.h>
 #include <linux/of.h>
-
-extern void __iomem *sregs_base;
+#include <linux/of_address.h>
 
 #define HB_PLL_LOCK_500		0x20000000
 #define HB_PLL_LOCK		0x10000000
@@ -280,6 +279,7 @@ static __init struct clk *hb_clk_init(struct device_node *node, const struct clk
 	const char *clk_name = node->name;
 	const char *parent_name;
 	struct clk_init_data init;
+	struct device_node *srnp;
 	int rc;
 
 	rc = of_property_read_u32(node, "reg", &reg);
@@ -290,7 +290,11 @@ static __init struct clk *hb_clk_init(struct device_node *node, const struct clk
 	if (WARN_ON(!hb_clk))
 		return NULL;
 
-	hb_clk->reg = sregs_base + reg;
+	/* Map system registers */
+	srnp = of_find_compatible_node(NULL, NULL, "calxeda,hb-sregs");
+	hb_clk->reg = of_iomap(srnp, 0);
+	BUG_ON(!hb_clk->reg);
+	hb_clk->reg += reg;
 
 	of_property_read_string(node, "clock-output-names", &clk_name);
 
-- 
cgit 


From 4d9d18a560a50920691865c1efdad6577616eaa9 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Tue, 27 Aug 2013 14:50:00 +0200
Subject: ARM: imx: remove custom .init_time hook

With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/clk-imx51-imx53.c | 29 ++++++++++-------------------
 arch/arm/mach-imx/common.h          |  4 ----
 arch/arm/mach-imx/imx51-dt.c        |  6 ------
 arch/arm/mach-imx/mach-imx53.c      |  6 ------
 arch/arm/mach-imx/mach-imx6q.c      | 14 +++-----------
 arch/arm/mach-imx/mach-imx6sl.c     |  7 -------
 arch/arm/mach-imx/mach-vf610.c      |  9 ---------
 7 files changed, 13 insertions(+), 62 deletions(-)

diff --git a/arch/arm/mach-imx/clk-imx51-imx53.c b/arch/arm/mach-imx/clk-imx51-imx53.c
index 1a56a3319997..1b796db7652c 100644
--- a/arch/arm/mach-imx/clk-imx51-imx53.c
+++ b/arch/arm/mach-imx/clk-imx51-imx53.c
@@ -11,6 +11,7 @@
 #include <linux/clk.h>
 #include <linux/io.h>
 #include <linux/clkdev.h>
+#include <linux/clk-provider.h>
 #include <linux/of.h>
 #include <linux/err.h>
 
@@ -131,8 +132,6 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil,
 {
 	int i;
 
-	of_clk_init(NULL);
-
 	clk[dummy] = imx_clk_fixed("dummy", 0);
 	clk[ckil] = imx_obtain_fixed_clock("ckil", rate_ckil);
 	clk[osc] = imx_obtain_fixed_clock("osc", rate_osc);
@@ -465,12 +464,16 @@ int __init mx51_clocks_init(unsigned long rate_ckil, unsigned long rate_osc,
 	return 0;
 }
 
-int __init mx53_clocks_init(unsigned long rate_ckil, unsigned long rate_osc,
-			unsigned long rate_ckih1, unsigned long rate_ckih2)
+static void __init mx51_clocks_init_dt(struct device_node *np)
+{
+	mx51_clocks_init(0, 0, 0, 0);
+}
+CLK_OF_DECLARE(imx51_ccm, "fsl,imx51-ccm", mx51_clocks_init_dt);
+
+static void __init mx53_clocks_init(struct device_node *np)
 {
 	int i;
 	unsigned long r;
-	struct device_node *np;
 
 	clk[pll1_sw] = imx_clk_pllv2("pll1_sw", "osc", MX53_DPLL1_BASE);
 	clk[pll2_sw] = imx_clk_pllv2("pll2_sw", "osc", MX53_DPLL2_BASE);
@@ -529,12 +532,11 @@ int __init mx53_clocks_init(unsigned long rate_ckil, unsigned long rate_osc,
 			pr_err("i.MX53 clk %d: register failed with %ld\n",
 				i, PTR_ERR(clk[i]));
 
-	np = of_find_compatible_node(NULL, NULL, "fsl,imx53-ccm");
 	clk_data.clks = clk;
 	clk_data.clk_num = ARRAY_SIZE(clk);
 	of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
 
-	mx5_clocks_common_init(rate_ckil, rate_osc, rate_ckih1, rate_ckih2);
+	mx5_clocks_common_init(0, 0, 0, 0);
 
 	clk_register_clkdev(clk[vpu_gate], NULL, "imx53-vpu.0");
 	clk_register_clkdev(clk[i2c3_gate], NULL, "imx21-i2c.2");
@@ -566,16 +568,5 @@ int __init mx53_clocks_init(unsigned long rate_ckil, unsigned long rate_osc,
 
 	r = clk_round_rate(clk[usboh3_per_gate], 54000000);
 	clk_set_rate(clk[usboh3_per_gate], r);
-
-	return 0;
-}
-
-int __init mx51_clocks_init_dt(void)
-{
-	return mx51_clocks_init(0, 0, 0, 0);
-}
-
-int __init mx53_clocks_init_dt(void)
-{
-	return mx53_clocks_init(0, 0, 0, 0);
 }
+CLK_OF_DECLARE(imx53_ccm, "fsl,imx53-ccm", mx53_clocks_init);
diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index 4517fd760bfc..28e8ca0871e8 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -63,13 +63,9 @@ extern int mx31_clocks_init(unsigned long fref);
 extern int mx35_clocks_init(void);
 extern int mx51_clocks_init(unsigned long ckil, unsigned long osc,
 			unsigned long ckih1, unsigned long ckih2);
-extern int mx53_clocks_init(unsigned long ckil, unsigned long osc,
-			unsigned long ckih1, unsigned long ckih2);
 extern int mx25_clocks_init_dt(void);
 extern int mx27_clocks_init_dt(void);
 extern int mx31_clocks_init_dt(void);
-extern int mx51_clocks_init_dt(void);
-extern int mx53_clocks_init_dt(void);
 extern struct platform_device *mxc_register_gpio(char *name, int id,
 	resource_size_t iobase, resource_size_t iosize, int irq, int irq_high);
 extern void mxc_set_cpu_type(unsigned int type);
diff --git a/arch/arm/mach-imx/imx51-dt.c b/arch/arm/mach-imx/imx51-dt.c
index 53e43e579dd7..bece8a65e6f0 100644
--- a/arch/arm/mach-imx/imx51-dt.c
+++ b/arch/arm/mach-imx/imx51-dt.c
@@ -34,17 +34,11 @@ static const char *imx51_dt_board_compat[] __initdata = {
 	NULL
 };
 
-static void __init imx51_timer_init(void)
-{
-	mx51_clocks_init_dt();
-}
-
 DT_MACHINE_START(IMX51_DT, "Freescale i.MX51 (Device Tree Support)")
 	.map_io		= mx51_map_io,
 	.init_early	= imx51_init_early,
 	.init_irq	= mx51_init_irq,
 	.handle_irq	= imx51_handle_irq,
-	.init_time	= imx51_timer_init,
 	.init_machine	= imx51_dt_init,
 	.init_late	= imx51_init_late,
 	.dt_compat	= imx51_dt_board_compat,
diff --git a/arch/arm/mach-imx/mach-imx53.c b/arch/arm/mach-imx/mach-imx53.c
index 98c58944015a..c9c4d8d96931 100644
--- a/arch/arm/mach-imx/mach-imx53.c
+++ b/arch/arm/mach-imx/mach-imx53.c
@@ -36,17 +36,11 @@ static const char *imx53_dt_board_compat[] __initdata = {
 	NULL
 };
 
-static void __init imx53_timer_init(void)
-{
-	mx53_clocks_init_dt();
-}
-
 DT_MACHINE_START(IMX53_DT, "Freescale i.MX53 (Device Tree Support)")
 	.map_io		= mx53_map_io,
 	.init_early	= imx53_init_early,
 	.init_irq	= mx53_init_irq,
 	.handle_irq	= imx53_handle_irq,
-	.init_time	= imx53_timer_init,
 	.init_machine	= imx53_dt_init,
 	.init_late	= imx53_init_late,
 	.dt_compat	= imx53_dt_board_compat,
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c
index 85a1b51346c8..47ebc36636a7 100644
--- a/arch/arm/mach-imx/mach-imx6q.c
+++ b/arch/arm/mach-imx/mach-imx6q.c
@@ -11,9 +11,7 @@
  */
 
 #include <linux/clk.h>
-#include <linux/clk-provider.h>
 #include <linux/clkdev.h>
-#include <linux/clocksource.h>
 #include <linux/cpu.h>
 #include <linux/delay.h>
 #include <linux/export.h>
@@ -192,6 +190,9 @@ static void __init imx6q_1588_init(void)
 
 static void __init imx6q_init_machine(void)
 {
+	imx_print_silicon_rev(cpu_is_imx6dl() ? "i.MX6DL" : "i.MX6Q",
+			      imx6q_revision());
+
 	imx6q_enet_phy_init();
 
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
@@ -288,14 +289,6 @@ static void __init imx6q_init_irq(void)
 	irqchip_init();
 }
 
-static void __init imx6q_timer_init(void)
-{
-	of_clk_init(NULL);
-	clocksource_of_init();
-	imx_print_silicon_rev(cpu_is_imx6dl() ? "i.MX6DL" : "i.MX6Q",
-			      imx6q_revision());
-}
-
 static const char *imx6q_dt_compat[] __initdata = {
 	"fsl,imx6dl",
 	"fsl,imx6q",
@@ -306,7 +299,6 @@ DT_MACHINE_START(IMX6Q, "Freescale i.MX6 Quad/DualLite (Device Tree)")
 	.smp		= smp_ops(imx_smp_ops),
 	.map_io		= imx6q_map_io,
 	.init_irq	= imx6q_init_irq,
-	.init_time	= imx6q_timer_init,
 	.init_machine	= imx6q_init_machine,
 	.init_late      = imx6q_init_late,
 	.dt_compat	= imx6q_dt_compat,
diff --git a/arch/arm/mach-imx/mach-imx6sl.c b/arch/arm/mach-imx/mach-imx6sl.c
index 0d75dc54f715..c70bd7c64974 100644
--- a/arch/arm/mach-imx/mach-imx6sl.c
+++ b/arch/arm/mach-imx/mach-imx6sl.c
@@ -7,7 +7,6 @@
  *
  */
 
-#include <linux/clk-provider.h>
 #include <linux/irqchip.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
@@ -31,11 +30,6 @@ static void __init imx6sl_init_irq(void)
 	irqchip_init();
 }
 
-static void __init imx6sl_timer_init(void)
-{
-	of_clk_init(NULL);
-}
-
 static const char *imx6sl_dt_compat[] __initdata = {
 	"fsl,imx6sl",
 	NULL,
@@ -44,7 +38,6 @@ static const char *imx6sl_dt_compat[] __initdata = {
 DT_MACHINE_START(IMX6SL, "Freescale i.MX6 SoloLite (Device Tree)")
 	.map_io		= debug_ll_io_init,
 	.init_irq	= imx6sl_init_irq,
-	.init_time	= imx6sl_timer_init,
 	.init_machine	= imx6sl_init_machine,
 	.dt_compat	= imx6sl_dt_compat,
 	.restart	= mxc_restart,
diff --git a/arch/arm/mach-imx/mach-vf610.c b/arch/arm/mach-imx/mach-vf610.c
index 816991deb9b8..af0cb8a9dc48 100644
--- a/arch/arm/mach-imx/mach-vf610.c
+++ b/arch/arm/mach-imx/mach-vf610.c
@@ -8,9 +8,7 @@
  */
 
 #include <linux/of_platform.h>
-#include <linux/clocksource.h>
 #include <linux/irqchip.h>
-#include <linux/clk-provider.h>
 #include <asm/mach/arch.h>
 #include <asm/hardware/cache-l2x0.h>
 
@@ -28,12 +26,6 @@ static void __init vf610_init_irq(void)
 	irqchip_init();
 }
 
-static void __init vf610_init_time(void)
-{
-	of_clk_init(NULL);
-	clocksource_of_init();
-}
-
 static const char *vf610_dt_compat[] __initdata = {
 	"fsl,vf610",
 	NULL,
@@ -41,7 +33,6 @@ static const char *vf610_dt_compat[] __initdata = {
 
 DT_MACHINE_START(VYBRID_VF610, "Freescale Vybrid VF610 (Device Tree)")
 	.init_irq	= vf610_init_irq,
-	.init_time	= vf610_init_time,
 	.init_machine   = vf610_init_machine,
 	.dt_compat	= vf610_dt_compat,
 	.restart	= mxc_restart,
-- 
cgit 


From a169e3aa37f33ca88131168e46bf23a317de6ace Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Tue, 27 Aug 2013 15:10:16 +0200
Subject: ARM: kirkwood: remove custom .init_time hook

With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/mach-kirkwood/board-dt.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c
index 82d3ad8e87cf..a32a3e507a9d 100644
--- a/arch/arm/mach-kirkwood/board-dt.c
+++ b/arch/arm/mach-kirkwood/board-dt.c
@@ -15,7 +15,6 @@
 #include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/clk-provider.h>
-#include <linux/clocksource.h>
 #include <linux/dma-mapping.h>
 #include <linux/irqchip.h>
 #include <linux/kexec.h>
@@ -66,12 +65,6 @@ static void __init kirkwood_legacy_clk_init(void)
 	clk_prepare_enable(clk);
 }
 
-static void __init kirkwood_dt_time_init(void)
-{
-	of_clk_init(NULL);
-	clocksource_of_init();
-}
-
 static void __init kirkwood_dt_init_early(void)
 {
 	mvebu_mbus_init("marvell,kirkwood-mbus",
@@ -122,7 +115,6 @@ DT_MACHINE_START(KIRKWOOD_DT, "Marvell Kirkwood (Flattened Device Tree)")
 	/* Maintainer: Jason Cooper <jason@lakedaemon.net> */
 	.map_io		= kirkwood_map_io,
 	.init_early	= kirkwood_dt_init_early,
-	.init_time	= kirkwood_dt_time_init,
 	.init_machine	= kirkwood_dt_init,
 	.restart	= kirkwood_restart,
 	.dt_compat	= kirkwood_dt_board_compat,
-- 
cgit 


From dd03ee9ae5bc080297175c921b1a693d0de1e8b0 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 4 Sep 2013 13:16:01 +0200
Subject: ARM: mxs: remove custom .init_time hook

This patch converts clk-imx2[38] clocksource_of_init compatible init
associated with fsl,imx2[38]-clkctrl. With arch/arm calling
of_clk_init(NULL) from time_init(), we can now also remove custom
.init_time hooks.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Mike Turquette <mturquette@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-mxs/mach-mxs.c | 13 -------------
 drivers/clk/mxs/clk-imx23.c  | 15 ++++++++-------
 drivers/clk/mxs/clk-imx28.c  | 16 ++++++++--------
 include/linux/clk/mxs.h      |  2 --
 4 files changed, 16 insertions(+), 30 deletions(-)

diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c
index 98f6e2adb53e..cc511a4890a3 100644
--- a/arch/arm/mach-mxs/mach-mxs.c
+++ b/arch/arm/mach-mxs/mach-mxs.c
@@ -13,8 +13,6 @@
 #include <linux/clk.h>
 #include <linux/clk/mxs.h>
 #include <linux/clkdev.h>
-#include <linux/clocksource.h>
-#include <linux/clk-provider.h>
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/gpio.h>
@@ -490,16 +488,6 @@ static void mxs_restart(enum reboot_mode mode, const char *cmd)
 	soft_restart(0);
 }
 
-static void __init mxs_timer_init(void)
-{
-	if (of_machine_is_compatible("fsl,imx23"))
-		mx23_clocks_init();
-	else
-		mx28_clocks_init();
-	of_clk_init(NULL);
-	clocksource_of_init();
-}
-
 static const char *mxs_dt_compat[] __initdata = {
 	"fsl,imx28",
 	"fsl,imx23",
@@ -508,7 +496,6 @@ static const char *mxs_dt_compat[] __initdata = {
 
 DT_MACHINE_START(MXS, "Freescale MXS (Device Tree)")
 	.handle_irq	= icoll_handle_irq,
-	.init_time	= mxs_timer_init,
 	.init_machine	= mxs_machine_init,
 	.init_late      = mxs_pm_init,
 	.dt_compat	= mxs_dt_compat,
diff --git a/drivers/clk/mxs/clk-imx23.c b/drivers/clk/mxs/clk-imx23.c
index c396fe361589..9fc9359f5133 100644
--- a/drivers/clk/mxs/clk-imx23.c
+++ b/drivers/clk/mxs/clk-imx23.c
@@ -12,6 +12,7 @@
 #include <linux/clk.h>
 #include <linux/clk/mxs.h>
 #include <linux/clkdev.h>
+#include <linux/clk-provider.h>
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/io.h>
@@ -100,16 +101,16 @@ static enum imx23_clk clks_init_on[] __initdata = {
 	cpu, hbus, xbus, emi, uart,
 };
 
-int __init mx23_clocks_init(void)
+static void __init mx23_clocks_init(struct device_node *np)
 {
-	struct device_node *np;
+	struct device_node *dcnp;
 	u32 i;
 
-	np = of_find_compatible_node(NULL, NULL, "fsl,imx23-digctl");
-	digctrl = of_iomap(np, 0);
+	dcnp = of_find_compatible_node(NULL, NULL, "fsl,imx23-digctl");
+	digctrl = of_iomap(dcnp, 0);
 	WARN_ON(!digctrl);
+	of_node_put(dcnp);
 
-	np = of_find_compatible_node(NULL, NULL, "fsl,imx23-clkctrl");
 	clkctrl = of_iomap(np, 0);
 	WARN_ON(!clkctrl);
 
@@ -162,7 +163,7 @@ int __init mx23_clocks_init(void)
 		if (IS_ERR(clks[i])) {
 			pr_err("i.MX23 clk %d: register failed with %ld\n",
 				i, PTR_ERR(clks[i]));
-			return PTR_ERR(clks[i]);
+			return;
 		}
 
 	clk_data.clks = clks;
@@ -172,5 +173,5 @@ int __init mx23_clocks_init(void)
 	for (i = 0; i < ARRAY_SIZE(clks_init_on); i++)
 		clk_prepare_enable(clks[clks_init_on[i]]);
 
-	return 0;
 }
+CLK_OF_DECLARE(imx23_clkctrl, "fsl,imx23-clkctrl", mx23_clocks_init);
diff --git a/drivers/clk/mxs/clk-imx28.c b/drivers/clk/mxs/clk-imx28.c
index 4faf0afc44cd..a6c35010e4e5 100644
--- a/drivers/clk/mxs/clk-imx28.c
+++ b/drivers/clk/mxs/clk-imx28.c
@@ -12,6 +12,7 @@
 #include <linux/clk.h>
 #include <linux/clk/mxs.h>
 #include <linux/clkdev.h>
+#include <linux/clk-provider.h>
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/io.h>
@@ -154,16 +155,16 @@ static enum imx28_clk clks_init_on[] __initdata = {
 	cpu, hbus, xbus, emi, uart,
 };
 
-int __init mx28_clocks_init(void)
+static void __init mx28_clocks_init(struct device_node *np)
 {
-	struct device_node *np;
+	struct device_node *dcnp;
 	u32 i;
 
-	np = of_find_compatible_node(NULL, NULL, "fsl,imx28-digctl");
-	digctrl = of_iomap(np, 0);
+	dcnp = of_find_compatible_node(NULL, NULL, "fsl,imx28-digctl");
+	digctrl = of_iomap(dcnp, 0);
 	WARN_ON(!digctrl);
+	of_node_put(dcnp);
 
-	np = of_find_compatible_node(NULL, NULL, "fsl,imx28-clkctrl");
 	clkctrl = of_iomap(np, 0);
 	WARN_ON(!clkctrl);
 
@@ -239,7 +240,7 @@ int __init mx28_clocks_init(void)
 		if (IS_ERR(clks[i])) {
 			pr_err("i.MX28 clk %d: register failed with %ld\n",
 				i, PTR_ERR(clks[i]));
-			return PTR_ERR(clks[i]);
+			return;
 		}
 
 	clk_data.clks = clks;
@@ -250,6 +251,5 @@ int __init mx28_clocks_init(void)
 
 	for (i = 0; i < ARRAY_SIZE(clks_init_on); i++)
 		clk_prepare_enable(clks[clks_init_on[i]]);
-
-	return 0;
 }
+CLK_OF_DECLARE(imx28_clkctrl, "fsl,imx28-clkctrl", mx28_clocks_init);
diff --git a/include/linux/clk/mxs.h b/include/linux/clk/mxs.h
index 90c30dc3efc7..5138a90e018c 100644
--- a/include/linux/clk/mxs.h
+++ b/include/linux/clk/mxs.h
@@ -9,8 +9,6 @@
 #ifndef __LINUX_CLK_MXS_H
 #define __LINUX_CLK_MXS_H
 
-int mx23_clocks_init(void);
-int mx28_clocks_init(void);
 int mxs_saif_clkmux_select(unsigned int clkmux);
 
 #endif
-- 
cgit 


From e70ded64e6e08d7d35932b4a66a791480edfc0d1 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 4 Sep 2013 19:09:21 +0200
Subject: ARM: nomadik: remove custom .init_time hook

With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-nomadik/cpu-8815.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/arch/arm/mach-nomadik/cpu-8815.c b/arch/arm/mach-nomadik/cpu-8815.c
index 2be38a00a3d9..53fbf63c8b66 100644
--- a/arch/arm/mach-nomadik/cpu-8815.c
+++ b/arch/arm/mach-nomadik/cpu-8815.c
@@ -25,8 +25,6 @@
 #include <linux/slab.h>
 #include <linux/irq.h>
 #include <linux/dma-mapping.h>
-#include <linux/clk-provider.h>
-#include <linux/clocksource.h>
 #include <linux/of_irq.h>
 #include <linux/of_gpio.h>
 #include <linux/of_address.h>
@@ -113,12 +111,6 @@ static void cpu8815_restart(enum reboot_mode mode, const char *cmd)
 	writel(1, srcbase + 0x18);
 }
 
-static void __init cpu8815_timer_init_of(void)
-{
-	of_clk_init(NULL);
-	clocksource_of_init();
-}
-
 static struct fsmc_nand_timings cpu8815_nand_timings = {
 	.thiz	= 0,
 	.thold	= 0x10,
@@ -232,7 +224,6 @@ static const char * cpu8815_board_compat[] = {
 
 DT_MACHINE_START(NOMADIK_DT, "Nomadik STn8815")
 	.map_io		= cpu8815_map_io,
-	.init_time	= cpu8815_timer_init_of,
 	.init_machine	= cpu8815_init_of,
 	.restart	= cpu8815_restart,
 	.dt_compat      = cpu8815_board_compat,
-- 
cgit 


From 638085eea1cb218bc9267d8629fb1982e1ff7c3b Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Tue, 27 Aug 2013 15:19:10 +0200
Subject: ARM: nspire: remove custom .init_time hook

With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
 arch/arm/mach-nspire/nspire.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/arch/arm/mach-nspire/nspire.c b/arch/arm/mach-nspire/nspire.c
index 99e26092a9f7..4b2ed2e8352f 100644
--- a/arch/arm/mach-nspire/nspire.c
+++ b/arch/arm/mach-nspire/nspire.c
@@ -14,11 +14,9 @@
 #include <linux/of_platform.h>
 #include <linux/irqchip.h>
 #include <linux/irqchip/arm-vic.h>
-#include <linux/clk-provider.h>
 #include <linux/clkdev.h>
 #include <linux/amba/bus.h>
 #include <linux/amba/clcd.h>
-#include <linux/clocksource.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach-types.h>
@@ -65,12 +63,6 @@ static void __init nspire_init(void)
 			nspire_auxdata, NULL);
 }
 
-static void __init nspire_init_time(void)
-{
-	of_clk_init(NULL);
-	clocksource_of_init();
-}
-
 static void nspire_restart(char mode, const char *cmd)
 {
 	void __iomem *base = ioremap(NSPIRE_MISC_PHYS_BASE, SZ_4K);
@@ -83,7 +75,6 @@ static void nspire_restart(char mode, const char *cmd)
 DT_MACHINE_START(NSPIRE, "TI-NSPIRE")
 	.dt_compat	= nspire_dt_match,
 	.map_io		= nspire_map_io,
-	.init_time	= nspire_init_time,
 	.init_machine	= nspire_init,
 	.restart	= nspire_restart,
 MACHINE_END
-- 
cgit 


From 50432501fc6fabd57e86b968f0a4d5099e074c6f Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 4 Sep 2013 14:23:55 +0200
Subject: ARM: prima2: remove custom .init_time hook

With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Barry Song <baohua.song@csr.com>
---
 arch/arm/mach-prima2/common.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/arch/arm/mach-prima2/common.c b/arch/arm/mach-prima2/common.c
index 9b7663d9096f..d49aff74de98 100644
--- a/arch/arm/mach-prima2/common.c
+++ b/arch/arm/mach-prima2/common.c
@@ -6,8 +6,6 @@
  * Licensed under GPLv2 or later.
  */
 
-#include <linux/clk-provider.h>
-#include <linux/clocksource.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <asm/sizes.h>
@@ -22,12 +20,6 @@ void __init sirfsoc_init_late(void)
 	sirfsoc_pm_init();
 }
 
-static __init void sirfsoc_init_time(void)
-{
-	of_clk_init(NULL);
-	clocksource_of_init();
-}
-
 static __init void sirfsoc_map_io(void)
 {
 	sirfsoc_map_lluart();
@@ -43,7 +35,6 @@ static const char *atlas6_dt_match[] __initdata = {
 DT_MACHINE_START(ATLAS6_DT, "Generic ATLAS6 (Flattened Device Tree)")
 	/* Maintainer: Barry Song <baohua.song@csr.com> */
 	.map_io         = sirfsoc_map_io,
-	.init_time	= sirfsoc_init_time,
 	.init_late	= sirfsoc_init_late,
 	.dt_compat      = atlas6_dt_match,
 	.restart	= sirfsoc_restart,
@@ -59,7 +50,6 @@ static const char *prima2_dt_match[] __initdata = {
 DT_MACHINE_START(PRIMA2_DT, "Generic PRIMA2 (Flattened Device Tree)")
 	/* Maintainer: Barry Song <baohua.song@csr.com> */
 	.map_io         = sirfsoc_map_io,
-	.init_time	= sirfsoc_init_time,
 	.dma_zone_size	= SZ_256M,
 	.init_late	= sirfsoc_init_late,
 	.dt_compat      = prima2_dt_match,
@@ -77,7 +67,6 @@ DT_MACHINE_START(MARCO_DT, "Generic MARCO (Flattened Device Tree)")
 	/* Maintainer: Barry Song <baohua.song@csr.com> */
 	.smp            = smp_ops(sirfsoc_smp_ops),
 	.map_io         = sirfsoc_map_io,
-	.init_time	= sirfsoc_init_time,
 	.init_late	= sirfsoc_init_late,
 	.dt_compat      = marco_dt_match,
 	.restart	= sirfsoc_restart,
-- 
cgit 


From 2ab38d9343416f0de93bfeafbd2470fcc994f8ab Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Tue, 27 Aug 2013 15:19:46 +0200
Subject: ARM: rockchip: remove custom .init_time hook

With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
---
 arch/arm/mach-rockchip/rockchip.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/arch/arm/mach-rockchip/rockchip.c b/arch/arm/mach-rockchip/rockchip.c
index 724d2d81f976..82c0b0709712 100644
--- a/arch/arm/mach-rockchip/rockchip.c
+++ b/arch/arm/mach-rockchip/rockchip.c
@@ -19,18 +19,10 @@
 #include <linux/init.h>
 #include <linux/of_platform.h>
 #include <linux/irqchip.h>
-#include <linux/dw_apb_timer.h>
-#include <linux/clk-provider.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 #include <asm/hardware/cache-l2x0.h>
 
-static void __init rockchip_timer_init(void)
-{
-	of_clk_init(NULL);
-	clocksource_of_init();
-}
-
 static void __init rockchip_dt_init(void)
 {
 	l2x0_of_init(0, ~0UL);
@@ -47,6 +39,5 @@ static const char * const rockchip_board_dt_compat[] = {
 
 DT_MACHINE_START(ROCKCHIP_DT, "Rockchip Cortex-A9 (Device Tree)")
 	.init_machine	= rockchip_dt_init,
-	.init_time	= rockchip_timer_init,
 	.dt_compat	= rockchip_board_dt_compat,
 MACHINE_END
-- 
cgit 


From dc8105817f634d50a91cea9464bbc73ebb36182e Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 4 Sep 2013 13:38:00 +0200
Subject: ARM: socfpga: remove custom .init_time hook

With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Dinh Nguyen <dinguyen@altera.com>
---
 arch/arm/mach-socfpga/socfpga.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/arch/arm/mach-socfpga/socfpga.c b/arch/arm/mach-socfpga/socfpga.c
index 6df7bb9fe64a..dd0d49cdbe09 100644
--- a/arch/arm/mach-socfpga/socfpga.c
+++ b/arch/arm/mach-socfpga/socfpga.c
@@ -14,8 +14,6 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
-#include <linux/clk-provider.h>
-#include <linux/clocksource.h>
 #include <linux/irqchip.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
@@ -91,12 +89,6 @@ static void __init socfpga_init_irq(void)
 	socfpga_sysmgr_init();
 }
 
-static void __init socfpga_init_time(void)
-{
-	of_clk_init(NULL);
-	clocksource_of_init();
-}
-
 static void socfpga_cyclone5_restart(enum reboot_mode mode, const char *cmd)
 {
 	u32 temp;
@@ -126,7 +118,6 @@ DT_MACHINE_START(SOCFPGA, "Altera SOCFPGA")
 	.smp		= smp_ops(socfpga_smp_ops),
 	.map_io		= socfpga_map_io,
 	.init_irq	= socfpga_init_irq,
-	.init_time	= socfpga_init_time,
 	.init_machine	= socfpga_cyclone5_init,
 	.restart	= socfpga_cyclone5_restart,
 	.dt_compat	= altera_dt_match,
-- 
cgit 


From 28fbb151d5afe15a2fabfe2fe8585b610b022f5b Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Tue, 27 Aug 2013 15:23:07 +0200
Subject: ARM: sti: remove custom .init_time hook

With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks. To get rid of it, move l2cc init to
.init_machine hook instead.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
---
 arch/arm/mach-sti/board-dt.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/arch/arm/mach-sti/board-dt.c b/arch/arm/mach-sti/board-dt.c
index 8fe6f0c46480..1217fb598cfd 100644
--- a/arch/arm/mach-sti/board-dt.c
+++ b/arch/arm/mach-sti/board-dt.c
@@ -7,9 +7,8 @@
  * published by the Free Software Foundation.
  */
 
-#include <linux/clk-provider.h>
-#include <linux/clocksource.h>
 #include <linux/irq.h>
+#include <linux/of_platform.h>
 #include <asm/hardware/cache-l2x0.h>
 #include <asm/mach/arch.h>
 
@@ -28,11 +27,10 @@ void __init stih41x_l2x0_init(void)
 	l2x0_of_init(aux_ctrl, L2X0_AUX_CTRL_MASK);
 }
 
-static void __init stih41x_timer_init(void)
+static void __init stih41x_machine_init(void)
 {
-	of_clk_init(NULL);
-	clocksource_of_init();
 	stih41x_l2x0_init();
+	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }
 
 static const char *stih41x_dt_match[] __initdata = {
@@ -42,7 +40,7 @@ static const char *stih41x_dt_match[] __initdata = {
 };
 
 DT_MACHINE_START(STM, "STiH415/416 SoC with Flattened Device Tree")
-	.init_time	= stih41x_timer_init,
+	.init_machine	= stih41x_machine_init,
 	.smp		= smp_ops(sti_smp_ops),
 	.dt_compat	= stih41x_dt_match,
 MACHINE_END
-- 
cgit 


From b39e0249830a1b88cc213d1e9d3d1ca1f40df3b8 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Fri, 6 Sep 2013 15:11:01 +0200
Subject: ARM: sunxi: remove custom .init_time hook

With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 arch/arm/mach-sunxi/sunxi.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/arch/arm/mach-sunxi/sunxi.c b/arch/arm/mach-sunxi/sunxi.c
index e5a69756427b..90dda6228510 100644
--- a/arch/arm/mach-sunxi/sunxi.c
+++ b/arch/arm/mach-sunxi/sunxi.c
@@ -10,7 +10,6 @@
  * warranty of any kind, whether express or implied.
  */
 
-#include <linux/clocksource.h>
 #include <linux/delay.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -114,12 +113,6 @@ static void sunxi_setup_restart(void)
 	arm_pm_restart = of_id->data;
 }
 
-static void __init sunxi_timer_init(void)
-{
-	of_clk_init(NULL);
-	clocksource_of_init();
-}
-
 static void __init sunxi_dt_init(void)
 {
 	sunxi_setup_restart();
@@ -138,6 +131,5 @@ static const char * const sunxi_board_dt_compat[] = {
 
 DT_MACHINE_START(SUNXI_DT, "Allwinner A1X (Device Tree)")
 	.init_machine	= sunxi_dt_init,
-	.init_time	= sunxi_timer_init,
 	.dt_compat	= sunxi_board_dt_compat,
 MACHINE_END
-- 
cgit 


From 41136b664ad11d542e8378c757dac9ab174b0805 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 4 Sep 2013 13:42:55 +0200
Subject: ARM: tegra: remove custom .init_time hook

With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/mach-tegra/tegra.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c
index 4da271df2e6c..2e2192807830 100644
--- a/arch/arm/mach-tegra/tegra.c
+++ b/arch/arm/mach-tegra/tegra.c
@@ -16,7 +16,6 @@
  *
  */
 
-#include <linux/clocksource.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
@@ -33,7 +32,6 @@
 #include <linux/slab.h>
 #include <linux/sys_soc.h>
 #include <linux/usb/tegra_usb_phy.h>
-#include <linux/clk-provider.h>
 #include <linux/clk/tegra.h>
 
 #include <asm/mach-types.h>
@@ -84,12 +82,6 @@ out:
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, parent);
 }
 
-static void __init tegra_dt_init_time(void)
-{
-	of_clk_init(NULL);
-	clocksource_of_init();
-}
-
 static void __init paz00_init(void)
 {
 	if (IS_ENABLED(CONFIG_ARCH_TEGRA_2x_SOC))
@@ -129,7 +121,6 @@ DT_MACHINE_START(TEGRA_DT, "NVIDIA Tegra SoC (Flattened Device Tree)")
 	.smp		= smp_ops(tegra_smp_ops),
 	.init_early	= tegra_init_early,
 	.init_irq	= tegra_dt_init_irq,
-	.init_time	= tegra_dt_init_time,
 	.init_machine	= tegra_dt_init,
 	.init_late	= tegra_dt_init_late,
 	.restart	= tegra_assert_system_reset,
-- 
cgit 


From 56e89cf55c47288f906bd769cb3d6d4736db548a Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Tue, 27 Aug 2013 15:34:12 +0200
Subject: ARM: vexpress: remove custom .init_time hook

With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks. The call to versatile_sched_clock_init
is moved to .init_early instead, were it is also for non-DT boards.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Jon Medhurst (Tixy) <tixy@linaro.org>
Acked-by: Pawel Moll <pawel.moll@arm.com>
---
 arch/arm/mach-vexpress/v2m.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c
index 95a469e23e37..4f8b8cb17ff5 100644
--- a/arch/arm/mach-vexpress/v2m.c
+++ b/arch/arm/mach-vexpress/v2m.c
@@ -1,12 +1,10 @@
 /*
  * Versatile Express V2M Motherboard Support
  */
-#include <linux/clocksource.h>
 #include <linux/device.h>
 #include <linux/amba/bus.h>
 #include <linux/amba/mmci.h>
 #include <linux/io.h>
-#include <linux/clocksource.h>
 #include <linux/smp.h>
 #include <linux/init.h>
 #include <linux/of_address.h>
@@ -22,7 +20,6 @@
 #include <linux/regulator/fixed.h>
 #include <linux/regulator/machine.h>
 #include <linux/vexpress.h>
-#include <linux/clk-provider.h>
 #include <linux/clkdev.h>
 
 #include <asm/mach-types.h>
@@ -422,16 +419,8 @@ void __init v2m_dt_init_early(void)
 			pr_warning("vexpress: DT HBI (%x) is not matching "
 					"hardware (%x)!\n", dt_hbi, hbi);
 	}
-}
-
-static void __init v2m_dt_timer_init(void)
-{
-	of_clk_init(NULL);
 
-	clocksource_of_init();
-
-	versatile_sched_clock_init(vexpress_get_24mhz_clock_base(),
-				24000000);
+	versatile_sched_clock_init(vexpress_get_24mhz_clock_base(), 24000000);
 }
 
 static const struct of_device_id v2m_dt_bus_match[] __initconst = {
@@ -458,6 +447,5 @@ DT_MACHINE_START(VEXPRESS_DT, "ARM-Versatile Express")
 	.smp_init	= smp_init_ops(vexpress_smp_init_ops),
 	.map_io		= v2m_dt_map_io,
 	.init_early	= v2m_dt_init_early,
-	.init_time	= v2m_dt_timer_init,
 	.init_machine	= v2m_dt_init,
 MACHINE_END
-- 
cgit 


From 64cc69abbb32e17aa44d2c696eca65cb6f9364ca Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Wed, 4 Sep 2013 14:12:46 +0200
Subject: ARM: vt8500: remove custom .init_time hook

With arch/arm calling of_clk_init(NULL) from time_init(), we can now
remove custom .init_time hooks.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
---
 arch/arm/mach-vt8500/vt8500.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/arch/arm/mach-vt8500/vt8500.c b/arch/arm/mach-vt8500/vt8500.c
index 504156351b3e..4a73464cb11b 100644
--- a/arch/arm/mach-vt8500/vt8500.c
+++ b/arch/arm/mach-vt8500/vt8500.c
@@ -18,8 +18,6 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-#include <linux/clk-provider.h>
-#include <linux/clocksource.h>
 #include <linux/io.h>
 #include <linux/pm.h>
 #include <linux/reboot.h>
@@ -74,12 +72,6 @@ static void vt8500_power_off(void)
 	asm("mcr%? p15, 0, %0, c7, c0, 4" : : "r" (0));
 }
 
-static void __init vt8500_init_time(void)
-{
-	of_clk_init(NULL);
-	clocksource_of_init();
-}
-
 void __init vt8500_init(void)
 {
 	struct device_node *np;
@@ -183,7 +175,6 @@ DT_MACHINE_START(WMT_DT, "VIA/Wondermedia SoC (Device Tree Support)")
 	.dt_compat	= vt8500_dt_compat,
 	.map_io		= vt8500_map_io,
 	.init_machine	= vt8500_init,
-	.init_time	= vt8500_init_time,
 	.restart	= vt8500_restart,
 MACHINE_END
 
-- 
cgit 


From 45f176aea60e9fe8c5fdf8e5c90e5c50c264d86f Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Thu, 26 Sep 2013 19:36:11 -0700
Subject: i2c: i2c-dev: Create 'name' attribute automatically

The 'name' attribute is needed for all i2c-dev class devices, meaning
it can be created automatically by pointing to it in the class data
structure. This simplifies the code and reduces the probability for race
conditions (the name attribute should exist by the time the device is
announced to user space).

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/i2c-dev.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c
index c3ccdea3d180..80b47e8ce030 100644
--- a/drivers/i2c/i2c-dev.c
+++ b/drivers/i2c/i2c-dev.c
@@ -102,8 +102,8 @@ static void return_i2c_dev(struct i2c_dev *i2c_dev)
 	kfree(i2c_dev);
 }
 
-static ssize_t show_adapter_name(struct device *dev,
-				 struct device_attribute *attr, char *buf)
+static ssize_t name_show(struct device *dev,
+			 struct device_attribute *attr, char *buf)
 {
 	struct i2c_dev *i2c_dev = i2c_dev_get_by_minor(MINOR(dev->devt));
 
@@ -111,7 +111,13 @@ static ssize_t show_adapter_name(struct device *dev,
 		return -ENODEV;
 	return sprintf(buf, "%s\n", i2c_dev->adap->name);
 }
-static DEVICE_ATTR(name, S_IRUGO, show_adapter_name, NULL);
+static DEVICE_ATTR_RO(name);
+
+static struct attribute *i2c_attrs[] = {
+	&dev_attr_name.attr,
+	NULL,
+};
+ATTRIBUTE_GROUPS(i2c);
 
 /* ------------------------------------------------------------------------- */
 
@@ -562,15 +568,10 @@ static int i2cdev_attach_adapter(struct device *dev, void *dummy)
 		res = PTR_ERR(i2c_dev->dev);
 		goto error;
 	}
-	res = device_create_file(i2c_dev->dev, &dev_attr_name);
-	if (res)
-		goto error_destroy;
 
 	pr_debug("i2c-dev: adapter [%s] registered as minor %d\n",
 		 adap->name, adap->nr);
 	return 0;
-error_destroy:
-	device_destroy(i2c_dev_class, MKDEV(I2C_MAJOR, adap->nr));
 error:
 	return_i2c_dev(i2c_dev);
 	return res;
@@ -589,7 +590,6 @@ static int i2cdev_detach_adapter(struct device *dev, void *dummy)
 	if (!i2c_dev) /* attach_adapter must have failed */
 		return 0;
 
-	device_remove_file(i2c_dev->dev, &dev_attr_name);
 	return_i2c_dev(i2c_dev);
 	device_destroy(i2c_dev_class, MKDEV(I2C_MAJOR, adap->nr));
 
@@ -637,6 +637,7 @@ static int __init i2c_dev_init(void)
 		res = PTR_ERR(i2c_dev_class);
 		goto out_unreg_chrdev;
 	}
+	i2c_dev_class->dev_groups = i2c_groups;
 
 	/* Keep track of adapters which will be added or removed later */
 	res = bus_register_notifier(&i2c_bus_type, &i2cdev_notifier);
-- 
cgit 


From 14d32f1794fd559e12f27e8b5c57053073bd75aa Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 12 Sep 2013 14:36:44 +0200
Subject: i2c: rcar: (cosmetic) remove superfluous parenthesis

A recent patch added even more superfluous parenthesis to those, which
already were there. Remove them again.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-rcar.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index d2fe11da5e82..15eef94927e7 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -306,7 +306,7 @@ scgd_find:
 	/*
 	 * keep icccr value
 	 */
-	priv->icccr = (scgd << (cdf_width) | cdf);
+	priv->icccr = scgd << cdf_width | cdf;
 
 	return 0;
 }
-- 
cgit 


From 8d0494037bb2af32a22563d40703c1263fca318d Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 12 Sep 2013 14:36:45 +0200
Subject: i2c: rcar: get clock rate only once and simplify calculation

There is no need to repeatedly query clock frequency, where it is not
expected to change. The complete loop can also trivially be replaced with
a simple division. A further loop below the one, being simplified, could
also be replaced, but that would get more complicated.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-rcar.c | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index 15eef94927e7..9325db49b4df 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -231,6 +231,7 @@ static int rcar_i2c_clock_calculate(struct rcar_i2c_priv *priv,
 	u32 round, ick;
 	u32 scl;
 	u32 cdf_width;
+	unsigned long rate;
 
 	if (!clkp) {
 		dev_err(dev, "there is no peripheral_clk\n");
@@ -264,15 +265,14 @@ static int rcar_i2c_clock_calculate(struct rcar_i2c_priv *priv,
 	 * clkp : peripheral_clk
 	 * F[]  : integer up-valuation
 	 */
-	for (cdf = 0; cdf < (1 << cdf_width); cdf++) {
-		ick = clk_get_rate(clkp) / (1 + cdf);
-		if (ick < 20000000)
-			goto ick_find;
+	rate = clk_get_rate(clkp);
+	cdf = rate / 20000000;
+	if (cdf >= 1 << cdf_width) {
+		dev_err(dev, "Input clock %lu too high\n", rate);
+		return -EIO;
 	}
-	dev_err(dev, "there is no best CDF\n");
-	return -EIO;
+	ick = rate / (cdf + 1);
 
-ick_find:
 	/*
 	 * it is impossible to calculate large scale
 	 * number on u32. separate it
@@ -290,6 +290,12 @@ ick_find:
 	 *
 	 * Calculation result (= SCL) should be less than
 	 * bus_speed for hardware safety
+	 *
+	 * We could use something along the lines of
+	 *	div = ick / (bus_speed + 1) + 1;
+	 *	scgd = (div - 20 - round + 7) / 8;
+	 *	scl = ick / (20 + (scgd * 8) + round);
+	 * (not fully verified) but that would get pretty involved
 	 */
 	for (scgd = 0; scgd < 0x40; scgd++) {
 		scl = ick / (20 + (scgd * 8) + round);
-- 
cgit 


From 7679c0e19120ee7839adf1f05904cbfcc7a7c2b9 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 12 Sep 2013 14:36:46 +0200
Subject: i2c: rcar: add Device Tree support

This patch adds Device Tree support to the i2c-rcar driver and respective
documentation.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 Documentation/devicetree/bindings/i2c/i2c-rcar.txt | 23 ++++++++++++++++++++++
 drivers/i2c/busses/i2c-rcar.c                      | 21 ++++++++++++++++++--
 2 files changed, 42 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/i2c/i2c-rcar.txt

diff --git a/Documentation/devicetree/bindings/i2c/i2c-rcar.txt b/Documentation/devicetree/bindings/i2c/i2c-rcar.txt
new file mode 100644
index 000000000000..897cfcd5ce92
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-rcar.txt
@@ -0,0 +1,23 @@
+I2C for R-Car platforms
+
+Required properties:
+- compatible: Must be one of
+	"renesas,i2c-rcar"
+	"renesas,i2c-r8a7778"
+	"renesas,i2c-r8a7779"
+	"renesas,i2c-r8a7790"
+- reg: physical base address of the controller and length of memory mapped
+  region.
+- interrupts: interrupt specifier.
+
+Optional properties:
+- clock-frequency: desired I2C bus clock frequency in Hz. The absence of this
+  propoerty indicates the default frequency 100 kHz.
+
+Examples :
+
+i2c0: i2c@e6500000 {
+	compatible = "renesas,i2c-rcar-h2";
+	reg = <0 0xe6500000 0 0x428>;
+	interrupts = <0 174 0x4>;
+};
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index 9325db49b4df..1f285a3be5c5 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -33,6 +33,7 @@
 #include <linux/i2c/i2c-rcar.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
@@ -638,6 +639,15 @@ static const struct i2c_algorithm rcar_i2c_algo = {
 	.functionality	= rcar_i2c_func,
 };
 
+static const struct of_device_id rcar_i2c_dt_ids[] = {
+	{ .compatible = "renesas,i2c-rcar", .data = (void *)I2C_RCAR_H1 },
+	{ .compatible = "renesas,i2c-r8a7778", .data = (void *)I2C_RCAR_H1 },
+	{ .compatible = "renesas,i2c-r8a7779", .data = (void *)I2C_RCAR_H1 },
+	{ .compatible = "renesas,i2c-r8a7790", .data = (void *)I2C_RCAR_H2 },
+	{},
+};
+MODULE_DEVICE_TABLE(of, rcar_i2c_dt_ids);
+
 static int rcar_i2c_probe(struct platform_device *pdev)
 {
 	struct i2c_rcar_platform_data *pdata = dev_get_platdata(&pdev->dev);
@@ -655,10 +665,15 @@ static int rcar_i2c_probe(struct platform_device *pdev)
 	}
 
 	bus_speed = 100000; /* default 100 kHz */
-	if (pdata && pdata->bus_speed)
+	ret = of_property_read_u32(dev->of_node, "clock-frequency", &bus_speed);
+	if (ret < 0 && pdata && pdata->bus_speed)
 		bus_speed = pdata->bus_speed;
 
-	priv->devtype = platform_get_device_id(pdev)->driver_data;
+	if (pdev->dev.of_node)
+		priv->devtype = (long)of_match_device(rcar_i2c_dt_ids,
+						      dev)->data;
+	else
+		priv->devtype = platform_get_device_id(pdev)->driver_data;
 
 	ret = rcar_i2c_clock_calculate(priv, bus_speed, dev);
 	if (ret < 0)
@@ -679,6 +694,7 @@ static int rcar_i2c_probe(struct platform_device *pdev)
 	adap->class		= I2C_CLASS_HWMON | I2C_CLASS_SPD;
 	adap->retries		= 3;
 	adap->dev.parent	= dev;
+	adap->dev.of_node	= dev->of_node;
 	i2c_set_adapdata(adap, priv);
 	strlcpy(adap->name, pdev->name, sizeof(adap->name));
 
@@ -726,6 +742,7 @@ static struct platform_driver rcar_i2c_driver = {
 	.driver	= {
 		.name	= "i2c-rcar",
 		.owner	= THIS_MODULE,
+		.of_match_table = rcar_i2c_dt_ids,
 	},
 	.probe		= rcar_i2c_probe,
 	.remove		= rcar_i2c_remove,
-- 
cgit 


From 330c824a49cd49dd7e61c1e397fa4e7380ba2c68 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 12 Sep 2013 14:36:47 +0200
Subject: i2c: rcar: fix clk_get() error handling

When clk_get() fails, it returns an error code, not a NULL. This patch
fixes such an error handling bug.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-rcar.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index 1f285a3be5c5..98276eb5f6e7 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -234,9 +234,9 @@ static int rcar_i2c_clock_calculate(struct rcar_i2c_priv *priv,
 	u32 cdf_width;
 	unsigned long rate;
 
-	if (!clkp) {
-		dev_err(dev, "there is no peripheral_clk\n");
-		return -EIO;
+	if (IS_ERR(clkp)) {
+		dev_err(dev, "couldn't get clock\n");
+		return PTR_ERR(clkp);
 	}
 
 	switch (priv->devtype) {
-- 
cgit 


From 991e7ecf1f1a2e2fa76387066342a5a6c4a28a76 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 12 Sep 2013 14:36:48 +0200
Subject: i2c: rcar: use per-device clock

Using the same clock for all device instances is non-portable and obtaining
clock references by an ID without using a device pointer is discouraged.
This is also not needed, because on platforms, where this driver is used,
suitable clocks are available for the I2C controllers, that are children of
the peripheral clock and just pass its rate 1-to-1 to controllers. This
patch switches the driver to obtain references to correct clocks.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-rcar.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index 98276eb5f6e7..8603f5e805aa 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -227,7 +227,7 @@ static int rcar_i2c_clock_calculate(struct rcar_i2c_priv *priv,
 				    u32 bus_speed,
 				    struct device *dev)
 {
-	struct clk *clkp = clk_get(NULL, "peripheral_clk");
+	struct clk *clkp = clk_get(dev, NULL);
 	u32 scgd, cdf;
 	u32 round, ick;
 	u32 scl;
-- 
cgit 


From ab0dc7a81df2595a18b328d2c7031b00bd7efb1e Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 14:31:29 +0900
Subject: i2c: xiic: Remove casting the return value which is a void pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-xiic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c
index 4c8b368d463b..6e7b09c1804e 100644
--- a/drivers/i2c/busses/i2c-xiic.c
+++ b/drivers/i2c/busses/i2c-xiic.c
@@ -702,7 +702,7 @@ static int xiic_i2c_probe(struct platform_device *pdev)
 	if (irq < 0)
 		goto resource_missing;
 
-	pdata = (struct xiic_i2c_platform_data *)dev_get_platdata(&pdev->dev);
+	pdata = dev_get_platdata(&pdev->dev);
 
 	i2c = kzalloc(sizeof(*i2c), GFP_KERNEL);
 	if (!i2c)
-- 
cgit 


From 3c41aa710846c76400d6e8cf06600cc3eb8cbcc2 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 14:32:25 +0900
Subject: i2c: bfin-twi: Remove casting the return value which is a void
 pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-bfin-twi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/busses/i2c-bfin-twi.c b/drivers/i2c/busses/i2c-bfin-twi.c
index 35a473ba3d81..3b9bd9a3f2b0 100644
--- a/drivers/i2c/busses/i2c-bfin-twi.c
+++ b/drivers/i2c/busses/i2c-bfin-twi.c
@@ -675,7 +675,7 @@ static int i2c_bfin_twi_probe(struct platform_device *pdev)
 	p_adap->retries = 3;
 
 	rc = peripheral_request_list(
-			(unsigned short *)dev_get_platdata(&pdev->dev),
+			dev_get_platdata(&pdev->dev),
 			"i2c-bfin-twi");
 	if (rc) {
 		dev_err(&pdev->dev, "Can't setup pin mux!\n");
@@ -723,7 +723,7 @@ out_error_add_adapter:
 	free_irq(iface->irq, iface);
 out_error_req_irq:
 out_error_no_irq:
-	peripheral_free_list((unsigned short *)dev_get_platdata(&pdev->dev));
+	peripheral_free_list(dev_get_platdata(&pdev->dev));
 out_error_pin_mux:
 	iounmap(iface->regs_base);
 out_error_ioremap:
@@ -739,7 +739,7 @@ static int i2c_bfin_twi_remove(struct platform_device *pdev)
 
 	i2c_del_adapter(&(iface->adap));
 	free_irq(iface->irq, iface);
-	peripheral_free_list((unsigned short *)dev_get_platdata(&pdev->dev));
+	peripheral_free_list(dev_get_platdata(&pdev->dev));
 	iounmap(iface->regs_base);
 	kfree(iface);
 
-- 
cgit 


From 25f73ed5c67d17ecf8cefd560f55211cce726086 Mon Sep 17 00:00:00 2001
From: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Date: Fri, 27 Sep 2013 15:06:28 -0400
Subject: misc: (at24) move header to linux/platform_data/

This patch moves the at24.h header from include/linux/i2c to
include/linux/platform_data and updates existing support accordingly.

It also fixes the following checkpatch warning:

    WARNING: please, no space before tabs
    #436: FILE: include/linux/platform_data/at24.h:31:
    + * ^Iu8 *mac_addr = ethernet_pdata->mac_addr;$

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 MAINTAINERS                                |  2 +-
 arch/arm/mach-at91/board-sam9260ek.c       |  2 +-
 arch/arm/mach-at91/board-sam9263ek.c       |  2 +-
 arch/arm/mach-davinci/board-da830-evm.c    |  2 +-
 arch/arm/mach-davinci/board-da850-evm.c    |  2 +-
 arch/arm/mach-davinci/board-dm365-evm.c    |  2 +-
 arch/arm/mach-davinci/board-dm644x-evm.c   |  2 +-
 arch/arm/mach-davinci/board-dm646x-evm.c   |  2 +-
 arch/arm/mach-davinci/board-mityomapl138.c |  2 +-
 arch/arm/mach-davinci/board-sffsdr.c       |  2 +-
 arch/arm/mach-imx/mach-pca100.c            |  2 +-
 arch/arm/mach-imx/mach-pcm037.c            |  2 +-
 arch/arm/mach-imx/mach-pcm038.c            |  2 +-
 arch/arm/mach-imx/mach-pcm043.c            |  2 +-
 arch/arm/mach-imx/mach-vpr200.c            |  2 +-
 arch/arm/mach-kirkwood/lacie_v2-common.c   |  2 +-
 arch/arm/mach-omap1/board-osk.c            |  2 +-
 arch/arm/mach-omap2/board-cm-t35.c         |  2 +-
 arch/arm/mach-omap2/board-h4.c             |  2 +-
 arch/arm/mach-omap2/board-omap3stalker.c   |  2 +-
 arch/arm/mach-pxa/stargate2.c              |  2 +-
 arch/arm/mach-s3c24xx/mach-mini2440.c      |  2 +-
 drivers/misc/eeprom/at24.c                 |  2 +-
 include/linux/i2c/at24.h                   | 55 ------------------------------
 include/linux/platform_data/at24.h         | 55 ++++++++++++++++++++++++++++++
 25 files changed, 78 insertions(+), 78 deletions(-)
 delete mode 100644 include/linux/i2c/at24.h
 create mode 100644 include/linux/platform_data/at24.h

diff --git a/MAINTAINERS b/MAINTAINERS
index 284969fa2896..b9d19a7f3144 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1396,7 +1396,7 @@ M:	Wolfram Sang <wsa@the-dreams.de>
 L:	linux-i2c@vger.kernel.org
 S:	Maintained
 F:	drivers/misc/eeprom/at24.c
-F:	include/linux/i2c/at24.h
+F:	include/linux/platform_data/at24.h
 
 ATA OVER ETHERNET (AOE) DRIVER
 M:	"Ed L. Cashin" <ecashin@coraid.com>
diff --git a/arch/arm/mach-at91/board-sam9260ek.c b/arch/arm/mach-at91/board-sam9260ek.c
index 0b153c87521d..f4f8735315da 100644
--- a/arch/arm/mach-at91/board-sam9260ek.c
+++ b/arch/arm/mach-at91/board-sam9260ek.c
@@ -28,7 +28,7 @@
 #include <linux/spi/spi.h>
 #include <linux/spi/at73c213.h>
 #include <linux/clk.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/gpio_keys.h>
 #include <linux/input.h>
 
diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c
index 3284df05df14..947e134ac4c3 100644
--- a/arch/arm/mach-at91/board-sam9263ek.c
+++ b/arch/arm/mach-at91/board-sam9263ek.c
@@ -27,7 +27,7 @@
 #include <linux/platform_device.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/ads7846.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/fb.h>
 #include <linux/gpio_keys.h>
 #include <linux/input.h>
diff --git a/arch/arm/mach-davinci/board-da830-evm.c b/arch/arm/mach-davinci/board-da830-evm.c
index c4bdc0a1c36e..66b5b3cb5376 100644
--- a/arch/arm/mach-davinci/board-da830-evm.c
+++ b/arch/arm/mach-davinci/board-da830-evm.c
@@ -17,7 +17,7 @@
 #include <linux/platform_device.h>
 #include <linux/i2c.h>
 #include <linux/i2c/pcf857x.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/spi/spi.h>
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index dd1fb24521aa..f25a569b0009 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -18,7 +18,7 @@
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/i2c.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/platform_data/pca953x.h>
 #include <linux/input.h>
 #include <linux/input/tps6507x-ts.h>
diff --git a/arch/arm/mach-davinci/board-dm365-evm.c b/arch/arm/mach-davinci/board-dm365-evm.c
index 92b7f770615a..30ee81fac925 100644
--- a/arch/arm/mach-davinci/board-dm365-evm.c
+++ b/arch/arm/mach-davinci/board-dm365-evm.c
@@ -18,7 +18,7 @@
 #include <linux/i2c.h>
 #include <linux/io.h>
 #include <linux/clk.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/leds.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
diff --git a/arch/arm/mach-davinci/board-dm644x-evm.c b/arch/arm/mach-davinci/board-dm644x-evm.c
index 40bb9b5b87e8..f21fde9dce00 100644
--- a/arch/arm/mach-davinci/board-dm644x-evm.c
+++ b/arch/arm/mach-davinci/board-dm644x-evm.c
@@ -15,7 +15,7 @@
 #include <linux/gpio.h>
 #include <linux/i2c.h>
 #include <linux/i2c/pcf857x.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
diff --git a/arch/arm/mach-davinci/board-dm646x-evm.c b/arch/arm/mach-davinci/board-dm646x-evm.c
index 2bc3651d56cc..db2df32da6a8 100644
--- a/arch/arm/mach-davinci/board-dm646x-evm.c
+++ b/arch/arm/mach-davinci/board-dm646x-evm.c
@@ -22,7 +22,7 @@
 #include <linux/gpio.h>
 #include <linux/platform_device.h>
 #include <linux/i2c.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/i2c/pcf857x.h>
 
 #include <media/tvp514x.h>
diff --git a/arch/arm/mach-davinci/board-mityomapl138.c b/arch/arm/mach-davinci/board-mityomapl138.c
index cd0f58730c2b..7aa105b1fd0f 100644
--- a/arch/arm/mach-davinci/board-mityomapl138.c
+++ b/arch/arm/mach-davinci/board-mityomapl138.c
@@ -15,7 +15,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/regulator/machine.h>
 #include <linux/i2c.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/etherdevice.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
diff --git a/arch/arm/mach-davinci/board-sffsdr.c b/arch/arm/mach-davinci/board-sffsdr.c
index d84360148100..41c7c9615791 100644
--- a/arch/arm/mach-davinci/board-sffsdr.c
+++ b/arch/arm/mach-davinci/board-sffsdr.c
@@ -26,7 +26,7 @@
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/i2c.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
diff --git a/arch/arm/mach-imx/mach-pca100.c b/arch/arm/mach-imx/mach-pca100.c
index 19bb6441a7d4..c5f95674e9b7 100644
--- a/arch/arm/mach-imx/mach-pca100.c
+++ b/arch/arm/mach-imx/mach-pca100.c
@@ -20,7 +20,7 @@
 #include <linux/platform_device.h>
 #include <linux/io.h>
 #include <linux/i2c.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/dma-mapping.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/eeprom.h>
diff --git a/arch/arm/mach-imx/mach-pcm037.c b/arch/arm/mach-imx/mach-pcm037.c
index bc0261e99d39..20cc53f4cee1 100644
--- a/arch/arm/mach-imx/mach-pcm037.c
+++ b/arch/arm/mach-imx/mach-pcm037.c
@@ -23,7 +23,7 @@
 #include <linux/smsc911x.h>
 #include <linux/interrupt.h>
 #include <linux/i2c.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/delay.h>
 #include <linux/spi/spi.h>
 #include <linux/irq.h>
diff --git a/arch/arm/mach-imx/mach-pcm038.c b/arch/arm/mach-imx/mach-pcm038.c
index e805ac273e9c..592ddbe031ac 100644
--- a/arch/arm/mach-imx/mach-pcm038.c
+++ b/arch/arm/mach-imx/mach-pcm038.c
@@ -18,7 +18,7 @@
  */
 
 #include <linux/i2c.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/io.h>
 #include <linux/mtd/plat-ram.h>
 #include <linux/mtd/physmap.h>
diff --git a/arch/arm/mach-imx/mach-pcm043.c b/arch/arm/mach-imx/mach-pcm043.c
index b726cb1c5fdd..ac504b67326b 100644
--- a/arch/arm/mach-imx/mach-pcm043.c
+++ b/arch/arm/mach-imx/mach-pcm043.c
@@ -24,7 +24,7 @@
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 #include <linux/i2c.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/usb/otg.h>
 #include <linux/usb/ulpi.h>
 
diff --git a/arch/arm/mach-imx/mach-vpr200.c b/arch/arm/mach-imx/mach-vpr200.c
index 0910761e8280..8825d1217d18 100644
--- a/arch/arm/mach-imx/mach-vpr200.c
+++ b/arch/arm/mach-imx/mach-vpr200.c
@@ -29,7 +29,7 @@
 #include <asm/mach/time.h>
 
 #include <linux/i2c.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/mfd/mc13xxx.h>
 
 #include "common.h"
diff --git a/arch/arm/mach-kirkwood/lacie_v2-common.c b/arch/arm/mach-kirkwood/lacie_v2-common.c
index 489495976fcd..8e3e4331c380 100644
--- a/arch/arm/mach-kirkwood/lacie_v2-common.c
+++ b/arch/arm/mach-kirkwood/lacie_v2-common.c
@@ -12,7 +12,7 @@
 #include <linux/spi/flash.h>
 #include <linux/spi/spi.h>
 #include <linux/i2c.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/gpio.h>
 #include <asm/mach/time.h>
 #include <mach/kirkwood.h>
diff --git a/arch/arm/mach-omap1/board-osk.c b/arch/arm/mach-omap1/board-osk.c
index a7ce69286688..d68909b095f1 100644
--- a/arch/arm/mach-omap1/board-osk.c
+++ b/arch/arm/mach-omap1/board-osk.c
@@ -300,7 +300,7 @@ static struct omap_lcd_config osk_lcd_config __initdata = {
 #ifdef	CONFIG_OMAP_OSK_MISTRAL
 
 #include <linux/input.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/ads7846.h>
 
diff --git a/arch/arm/mach-omap2/board-cm-t35.c b/arch/arm/mach-omap2/board-cm-t35.c
index 33d159e2386e..8dd0ec858cf1 100644
--- a/arch/arm/mach-omap2/board-cm-t35.c
+++ b/arch/arm/mach-omap2/board-cm-t35.c
@@ -25,7 +25,7 @@
 #include <linux/gpio.h>
 #include <linux/platform_data/gpio-omap.h>
 
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/i2c/twl.h>
 #include <linux/regulator/fixed.h>
 #include <linux/regulator/machine.h>
diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c
index 87e41a8b8d46..f7808349a734 100644
--- a/arch/arm/mach-omap2/board-h4.c
+++ b/arch/arm/mach-omap2/board-h4.c
@@ -20,7 +20,7 @@
 #include <linux/delay.h>
 #include <linux/workqueue.h>
 #include <linux/i2c.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/input.h>
 #include <linux/err.h>
 #include <linux/clk.h>
diff --git a/arch/arm/mach-omap2/board-omap3stalker.c b/arch/arm/mach-omap2/board-omap3stalker.c
index ba8342fef799..119efaf5808a 100644
--- a/arch/arm/mach-omap2/board-omap3stalker.c
+++ b/arch/arm/mach-omap2/board-omap3stalker.c
@@ -32,7 +32,7 @@
 #include <linux/spi/spi.h>
 #include <linux/interrupt.h>
 #include <linux/smsc911x.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/usb/phy.h>
 
 #include <asm/mach-types.h>
diff --git a/arch/arm/mach-pxa/stargate2.c b/arch/arm/mach-pxa/stargate2.c
index 62aea3e835f3..01de542432a6 100644
--- a/arch/arm/mach-pxa/stargate2.c
+++ b/arch/arm/mach-pxa/stargate2.c
@@ -27,7 +27,7 @@
 
 #include <linux/i2c/pxa-i2c.h>
 #include <linux/i2c/pcf857x.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/smc91x.h>
 #include <linux/gpio.h>
 #include <linux/leds.h>
diff --git a/arch/arm/mach-s3c24xx/mach-mini2440.c b/arch/arm/mach-s3c24xx/mach-mini2440.c
index a83db46320bc..4a18d49a63e0 100644
--- a/arch/arm/mach-s3c24xx/mach-mini2440.c
+++ b/arch/arm/mach-s3c24xx/mach-mini2440.c
@@ -24,7 +24,7 @@
 #include <linux/io.h>
 #include <linux/serial_core.h>
 #include <linux/dm9000.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 #include <linux/platform_device.h>
 #include <linux/gpio_keys.h>
 #include <linux/i2c.h>
diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c
index 5d4fd69d04ca..4ef01ab67853 100644
--- a/drivers/misc/eeprom/at24.c
+++ b/drivers/misc/eeprom/at24.c
@@ -22,7 +22,7 @@
 #include <linux/jiffies.h>
 #include <linux/of.h>
 #include <linux/i2c.h>
-#include <linux/i2c/at24.h>
+#include <linux/platform_data/at24.h>
 
 /*
  * I2C EEPROMs from most vendors are inexpensive and mostly interchangeable.
diff --git a/include/linux/i2c/at24.h b/include/linux/i2c/at24.h
deleted file mode 100644
index 285025a9cdc9..000000000000
--- a/include/linux/i2c/at24.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * at24.h - platform_data for the at24 (generic eeprom) driver
- * (C) Copyright 2008 by Pengutronix
- * (C) Copyright 2012 by Wolfram Sang
- * same license as the driver
- */
-
-#ifndef _LINUX_AT24_H
-#define _LINUX_AT24_H
-
-#include <linux/types.h>
-#include <linux/memory.h>
-
-/**
- * struct at24_platform_data - data to set up at24 (generic eeprom) driver
- * @byte_len: size of eeprom in byte
- * @page_size: number of byte which can be written in one go
- * @flags: tunable options, check AT24_FLAG_* defines
- * @setup: an optional callback invoked after eeprom is probed; enables kernel
-	code to access eeprom via memory_accessor, see example
- * @context: optional parameter passed to setup()
- *
- * If you set up a custom eeprom type, please double-check the parameters.
- * Especially page_size needs extra care, as you risk data loss if your value
- * is bigger than what the chip actually supports!
- *
- * An example in pseudo code for a setup() callback:
- *
- * void get_mac_addr(struct memory_accessor *mem_acc, void *context)
- * {
- * 	u8 *mac_addr = ethernet_pdata->mac_addr;
- *	off_t offset = context;
- *
- *	// Read MAC addr from EEPROM
- *	if (mem_acc->read(mem_acc, mac_addr, offset, ETH_ALEN) == ETH_ALEN)
- *		pr_info("Read MAC addr from EEPROM: %pM\n", mac_addr);
- * }
- *
- * This function pointer and context can now be set up in at24_platform_data.
- */
-
-struct at24_platform_data {
-	u32		byte_len;		/* size (sum of all addr) */
-	u16		page_size;		/* for writes */
-	u8		flags;
-#define AT24_FLAG_ADDR16	0x80	/* address pointer is 16 bit */
-#define AT24_FLAG_READONLY	0x40	/* sysfs-entry will be read-only */
-#define AT24_FLAG_IRUGO		0x20	/* sysfs-entry will be world-readable */
-#define AT24_FLAG_TAKE8ADDR	0x10	/* take always 8 addresses (24c00) */
-
-	void		(*setup)(struct memory_accessor *, void *context);
-	void		*context;
-};
-
-#endif /* _LINUX_AT24_H */
diff --git a/include/linux/platform_data/at24.h b/include/linux/platform_data/at24.h
new file mode 100644
index 000000000000..c42aa89d34ee
--- /dev/null
+++ b/include/linux/platform_data/at24.h
@@ -0,0 +1,55 @@
+/*
+ * at24.h - platform_data for the at24 (generic eeprom) driver
+ * (C) Copyright 2008 by Pengutronix
+ * (C) Copyright 2012 by Wolfram Sang
+ * same license as the driver
+ */
+
+#ifndef _LINUX_AT24_H
+#define _LINUX_AT24_H
+
+#include <linux/types.h>
+#include <linux/memory.h>
+
+/**
+ * struct at24_platform_data - data to set up at24 (generic eeprom) driver
+ * @byte_len: size of eeprom in byte
+ * @page_size: number of byte which can be written in one go
+ * @flags: tunable options, check AT24_FLAG_* defines
+ * @setup: an optional callback invoked after eeprom is probed; enables kernel
+	code to access eeprom via memory_accessor, see example
+ * @context: optional parameter passed to setup()
+ *
+ * If you set up a custom eeprom type, please double-check the parameters.
+ * Especially page_size needs extra care, as you risk data loss if your value
+ * is bigger than what the chip actually supports!
+ *
+ * An example in pseudo code for a setup() callback:
+ *
+ * void get_mac_addr(struct memory_accessor *mem_acc, void *context)
+ * {
+ *	u8 *mac_addr = ethernet_pdata->mac_addr;
+ *	off_t offset = context;
+ *
+ *	// Read MAC addr from EEPROM
+ *	if (mem_acc->read(mem_acc, mac_addr, offset, ETH_ALEN) == ETH_ALEN)
+ *		pr_info("Read MAC addr from EEPROM: %pM\n", mac_addr);
+ * }
+ *
+ * This function pointer and context can now be set up in at24_platform_data.
+ */
+
+struct at24_platform_data {
+	u32		byte_len;		/* size (sum of all addr) */
+	u16		page_size;		/* for writes */
+	u8		flags;
+#define AT24_FLAG_ADDR16	0x80	/* address pointer is 16 bit */
+#define AT24_FLAG_READONLY	0x40	/* sysfs-entry will be read-only */
+#define AT24_FLAG_IRUGO		0x20	/* sysfs-entry will be world-readable */
+#define AT24_FLAG_TAKE8ADDR	0x10	/* take always 8 addresses (24c00) */
+
+	void		(*setup)(struct memory_accessor *, void *context);
+	void		*context;
+};
+
+#endif /* _LINUX_AT24_H */
-- 
cgit 


From e994d713a73716b54085a092b267099e40aa5513 Mon Sep 17 00:00:00 2001
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: Wed, 25 Sep 2013 09:29:50 -0700
Subject: ACPI/thermal : Remove zone disabled warning

Once thermal zone is disabled to move thermal control to user space,
too many warnings printed in logs. Remove pr_warn from this path,
instead warn when user mode issues request to disable thermal zone.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
 drivers/acpi/thermal.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 6a0329340b42..92bebb9d9438 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -515,10 +515,9 @@ static void acpi_thermal_check(void *data)
 {
 	struct acpi_thermal *tz = data;
 
-	if (!tz->tz_enabled) {
-		pr_warn("thermal zone is disabled \n");
+	if (!tz->tz_enabled)
 		return;
-	}
+
 	thermal_zone_device_update(tz->thermal_zone);
 }
 
@@ -570,9 +569,10 @@ static int thermal_set_mode(struct thermal_zone_device *thermal,
 	 */
 	if (mode == THERMAL_DEVICE_ENABLED)
 		enable = 1;
-	else if (mode == THERMAL_DEVICE_DISABLED)
+	else if (mode == THERMAL_DEVICE_DISABLED) {
 		enable = 0;
-	else
+		pr_warn("thermal zone will be disabled\n");
+	} else
 		return -EINVAL;
 
 	if (enable != tz->tz_enabled) {
-- 
cgit 


From c1f95979baa9c33c5e6c280d7a8742fad0d20326 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Thu, 29 Aug 2013 08:22:17 +0900
Subject: ARM: shmobile: Add r8a7790 CA15 CPU cores

Add CA15 CPU cores to r8a7790 for a total of 4 x CA15.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/r8a7790.dtsi | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi
index 3b879e7c697c..388f49f675bb 100644
--- a/arch/arm/boot/dts/r8a7790.dtsi
+++ b/arch/arm/boot/dts/r8a7790.dtsi
@@ -24,6 +24,27 @@
 			reg = <0>;
 			clock-frequency = <1300000000>;
 		};
+
+		cpu1: cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a15";
+			reg = <1>;
+			clock-frequency = <1300000000>;
+		};
+
+		cpu2: cpu@2 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a15";
+			reg = <2>;
+			clock-frequency = <1300000000>;
+		};
+
+		cpu3: cpu@3 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a15";
+			reg = <3>;
+			clock-frequency = <1300000000>;
+		};
 	};
 
 	gic: interrupt-controller@f1001000 {
-- 
cgit 


From 2007e74ca3769fd353fe87a7a105c14102d7980c Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Sun, 15 Sep 2013 00:28:58 +0900
Subject: ARM: shmobile: Add r8a7790 CA7 CPU cores to DTSI

Add r8a7790 Cortex-A7 CPU information to DTSI.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/r8a7790.dtsi | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi
index 388f49f675bb..a0cfb6618884 100644
--- a/arch/arm/boot/dts/r8a7790.dtsi
+++ b/arch/arm/boot/dts/r8a7790.dtsi
@@ -45,6 +45,34 @@
 			reg = <3>;
 			clock-frequency = <1300000000>;
 		};
+
+		cpu4: cpu@4 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a7";
+			reg = <0x100>;
+			clock-frequency = <780000000>;
+		};
+
+		cpu5: cpu@5 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a7";
+			reg = <0x101>;
+			clock-frequency = <780000000>;
+		};
+
+		cpu6: cpu@6 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a7";
+			reg = <0x102>;
+			clock-frequency = <780000000>;
+		};
+
+		cpu7: cpu@7 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a7";
+			reg = <0x103>;
+			clock-frequency = <780000000>;
+		};
 	};
 
 	gic: interrupt-controller@f1001000 {
-- 
cgit 


From 0d0771ab2bd5f57a62db91f26bba1e9f522d16cb Mon Sep 17 00:00:00 2001
From: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Date: Wed, 4 Sep 2013 12:45:57 +0900
Subject: ARM: shmobile: Initial r8a7791 SoC support

Add initial support for the r8a7791 SoC including:
 - Single Cortex-A15 CPU Core
 - GIC

No static virtual mappings are used, all the components
make use of ioremap(). DT_MACHINE_START is still wrapped
in CONFIG_USE_OF to match other mach-shmobile code.

Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Ryo Kataoka <ryo.kataoka.wt@renesas.com>
[damm@opensource.se: Forward ported to upstream, dropped not-yet-ready code]
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/r8a7791.dtsi                |  41 ++++++
 arch/arm/mach-shmobile/Kconfig                |   6 +
 arch/arm/mach-shmobile/Makefile               |   2 +
 arch/arm/mach-shmobile/clock-r8a7791.c        | 198 ++++++++++++++++++++++++++
 arch/arm/mach-shmobile/include/mach/r8a7791.h |   6 +
 arch/arm/mach-shmobile/setup-r8a7791.c        |  38 +++++
 6 files changed, 291 insertions(+)
 create mode 100644 arch/arm/boot/dts/r8a7791.dtsi
 create mode 100644 arch/arm/mach-shmobile/clock-r8a7791.c
 create mode 100644 arch/arm/mach-shmobile/include/mach/r8a7791.h
 create mode 100644 arch/arm/mach-shmobile/setup-r8a7791.c

diff --git a/arch/arm/boot/dts/r8a7791.dtsi b/arch/arm/boot/dts/r8a7791.dtsi
new file mode 100644
index 000000000000..bbed43bd9be9
--- /dev/null
+++ b/arch/arm/boot/dts/r8a7791.dtsi
@@ -0,0 +1,41 @@
+/*
+ * Device Tree Source for the r8a7791 SoC
+ *
+ * Copyright (C) 2013 Renesas Electronics Corporation
+ * Copyright (C) 2013 Renesas Solutions Corp.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/ {
+	compatible = "renesas,r8a7791";
+	interrupt-parent = <&gic>;
+	#address-cells = <2>;
+	#size-cells = <2>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu0: cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a15";
+			reg = <0>;
+			clock-frequency = <1300000000>;
+		};
+	};
+
+	gic: interrupt-controller@f1001000 {
+		compatible = "arm,cortex-a15-gic";
+		#interrupt-cells = <3>;
+		#address-cells = <0>;
+		interrupt-controller;
+		reg = <0 0xf1001000 0 0x1000>,
+			<0 0xf1002000 0 0x1000>,
+			<0 0xf1004000 0 0x2000>,
+			<0 0xf1006000 0 0x2000>;
+		interrupts = <1 9 0xf04>;
+	};
+};
diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index 1f94c310c477..b45240512ce0 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -101,6 +101,12 @@ config ARCH_R8A7790
 	select SH_CLK_CPG
 	select RENESAS_IRQC
 
+config ARCH_R8A7791
+	bool "R-Car M2 (R8A77910)"
+	select ARM_GIC
+	select CPU_V7
+	select SH_CLK_CPG
+
 config ARCH_EMEV2
 	bool "Emma Mobile EV2"
 	select ARCH_WANT_OPTIONAL_GPIOLIB
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 2705bfa8c113..228193cc9a38 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_ARCH_R8A7740)	+= setup-r8a7740.o
 obj-$(CONFIG_ARCH_R8A7778)	+= setup-r8a7778.o
 obj-$(CONFIG_ARCH_R8A7779)	+= setup-r8a7779.o
 obj-$(CONFIG_ARCH_R8A7790)	+= setup-r8a7790.o
+obj-$(CONFIG_ARCH_R8A7791)	+= setup-r8a7791.o
 obj-$(CONFIG_ARCH_EMEV2)	+= setup-emev2.o
 
 # Clock objects
@@ -27,6 +28,7 @@ obj-$(CONFIG_ARCH_R8A7740)	+= clock-r8a7740.o
 obj-$(CONFIG_ARCH_R8A7778)	+= clock-r8a7778.o
 obj-$(CONFIG_ARCH_R8A7779)	+= clock-r8a7779.o
 obj-$(CONFIG_ARCH_R8A7790)	+= clock-r8a7790.o
+obj-$(CONFIG_ARCH_R8A7791)	+= clock-r8a7791.o
 obj-$(CONFIG_ARCH_EMEV2)	+= clock-emev2.o
 endif
 
diff --git a/arch/arm/mach-shmobile/clock-r8a7791.c b/arch/arm/mach-shmobile/clock-r8a7791.c
new file mode 100644
index 000000000000..9929feb1b810
--- /dev/null
+++ b/arch/arm/mach-shmobile/clock-r8a7791.c
@@ -0,0 +1,198 @@
+/*
+ * r8a7791 clock framework support
+ *
+ * Copyright (C) 2013  Renesas Electronics Corporation
+ * Copyright (C) 2013  Renesas Solutions Corp.
+ * Copyright (C) 2013  Magnus Damm
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/sh_clk.h>
+#include <linux/clkdev.h>
+#include <mach/clock.h>
+#include <mach/common.h>
+
+/*
+ *   MD		EXTAL		PLL0	PLL1	PLL3
+ * 14 13 19	(MHz)		*1	*1
+ *---------------------------------------------------
+ * 0  0  0	15 x 1		x172/2	x208/2	x106
+ * 0  0  1	15 x 1		x172/2	x208/2	x88
+ * 0  1  0	20 x 1		x130/2	x156/2	x80
+ * 0  1  1	20 x 1		x130/2	x156/2	x66
+ * 1  0  0	26 / 2		x200/2	x240/2	x122
+ * 1  0  1	26 / 2		x200/2	x240/2	x102
+ * 1  1  0	30 / 2		x172/2	x208/2	x106
+ * 1  1  1	30 / 2		x172/2	x208/2	x88
+ *
+ * *1 :	Table 7.6 indicates VCO ouput (PLLx = VCO/2)
+ *	see "p1 / 2" on R8A7791_CLOCK_ROOT() below
+ */
+
+#define MD(nr)	(1 << nr)
+
+#define CPG_BASE 0xe6150000
+#define CPG_LEN 0x1000
+
+#define SMSTPCR1	0xE6150134
+#define SMSTPCR2	0xe6150138
+#define SMSTPCR3	0xE615013C
+#define SMSTPCR5	0xE6150144
+#define SMSTPCR7	0xe615014c
+#define SMSTPCR8	0xE6150990
+#define SMSTPCR9	0xE6150994
+#define SMSTPCR10	0xE6150998
+
+#define MODEMR		0xE6160060
+#define SDCKCR		0xE6150074
+#define SD2CKCR		0xE6150078
+#define SD3CKCR		0xE615007C
+#define MMC0CKCR	0xE6150240
+#define MMC1CKCR	0xE6150244
+#define SSPCKCR		0xE6150248
+#define SSPRSCKCR	0xE615024C
+
+static struct clk_mapping cpg_mapping = {
+	.phys   = CPG_BASE,
+	.len    = CPG_LEN,
+};
+
+static struct clk extal_clk = {
+	/* .rate will be updated on r8a7791_clock_init() */
+	.mapping	= &cpg_mapping,
+};
+
+static struct sh_clk_ops followparent_clk_ops = {
+	.recalc	= followparent_recalc,
+};
+
+static struct clk main_clk = {
+	/* .parent will be set r8a73a4_clock_init */
+	.ops	= &followparent_clk_ops,
+};
+
+/*
+ * clock ratio of these clock will be updated
+ * on r8a7791_clock_init()
+ */
+SH_FIXED_RATIO_CLK_SET(pll1_clk,		main_clk,	1, 1);
+SH_FIXED_RATIO_CLK_SET(pll3_clk,		main_clk,	1, 1);
+
+/* fixed ratio clock */
+SH_FIXED_RATIO_CLK_SET(extal_div2_clk,		extal_clk,	1, 2);
+SH_FIXED_RATIO_CLK_SET(cp_clk,			extal_clk,	1, 2);
+
+SH_FIXED_RATIO_CLK_SET(pll1_div2_clk,		pll1_clk,	1, 2);
+SH_FIXED_RATIO_CLK_SET(hp_clk,			pll1_clk,	1, 12);
+SH_FIXED_RATIO_CLK_SET(p_clk,			pll1_clk,	1, 24);
+
+SH_FIXED_RATIO_CLK_SET(mp_clk,			pll1_div2_clk,	1, 15);
+
+static struct clk *main_clks[] = {
+	&extal_clk,
+	&extal_div2_clk,
+	&main_clk,
+	&pll1_clk,
+	&pll1_div2_clk,
+	&pll3_clk,
+	&hp_clk,
+	&p_clk,
+	&mp_clk,
+	&cp_clk,
+};
+
+/* MSTP */
+enum {
+	MSTP721, MSTP720,
+/*	MSTP216, MSTP207, MSTP206, MSTP204, MSTP203, MSTP202,*/
+	MSTP_NR
+};
+
+static struct clk mstp_clks[MSTP_NR] = {
+	[MSTP721] = SH_CLK_MSTP32(&p_clk, SMSTPCR7, 21, 0), /* SCIF0 */
+	[MSTP720] = SH_CLK_MSTP32(&p_clk, SMSTPCR7, 20, 0), /* SCIF1 */
+};
+
+static struct clk_lookup lookups[] = {
+
+	/* main clocks */
+	CLKDEV_CON_ID("extal",		&extal_clk),
+	CLKDEV_CON_ID("extal_div2",	&extal_div2_clk),
+	CLKDEV_CON_ID("main",		&main_clk),
+	CLKDEV_CON_ID("pll1",		&pll1_clk),
+	CLKDEV_CON_ID("pll1_div2",	&pll1_div2_clk),
+	CLKDEV_CON_ID("pll3",		&pll3_clk),
+	CLKDEV_CON_ID("hp",		&hp_clk),
+	CLKDEV_CON_ID("p",		&p_clk),
+	CLKDEV_CON_ID("mp",		&mp_clk),
+	CLKDEV_CON_ID("cp",		&cp_clk),
+	CLKDEV_CON_ID("peripheral_clk", &hp_clk),
+};
+
+#define R8A7791_CLOCK_ROOT(e, m, p0, p1, p30, p31)		\
+	extal_clk.rate	= e * 1000 * 1000;			\
+	main_clk.parent	= m;					\
+	SH_CLK_SET_RATIO(&pll1_clk_ratio, p1 / 2, 1);		\
+	if (mode & MD(19))					\
+		SH_CLK_SET_RATIO(&pll3_clk_ratio, p31, 1);	\
+	else							\
+		SH_CLK_SET_RATIO(&pll3_clk_ratio, p30, 1)
+
+
+void __init r8a7791_clock_init(void)
+{
+	void __iomem *modemr = ioremap_nocache(MODEMR, PAGE_SIZE);
+	u32 mode;
+	int k, ret = 0;
+
+	BUG_ON(!modemr);
+	mode = ioread32(modemr);
+	iounmap(modemr);
+
+	switch (mode & (MD(14) | MD(13))) {
+	case 0:
+		R8A7791_CLOCK_ROOT(15, &extal_clk, 172, 208, 106, 88);
+		break;
+	case MD(13):
+		R8A7791_CLOCK_ROOT(20, &extal_clk, 130, 156, 80, 66);
+		break;
+	case MD(14):
+		R8A7791_CLOCK_ROOT(26, &extal_div2_clk, 200, 240, 122, 102);
+		break;
+	case MD(13) | MD(14):
+		R8A7791_CLOCK_ROOT(30, &extal_div2_clk, 172, 208, 106, 88);
+		break;
+	}
+
+	for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++)
+		ret = clk_register(main_clks[k]);
+
+	if (!ret)
+		ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
+
+	clkdev_add_table(lookups, ARRAY_SIZE(lookups));
+
+	if (!ret)
+		shmobile_clk_init();
+	else
+		goto epanic;
+
+	return;
+
+epanic:
+	panic("failed to setup r8a7791 clocks\n");
+}
diff --git a/arch/arm/mach-shmobile/include/mach/r8a7791.h b/arch/arm/mach-shmobile/include/mach/r8a7791.h
new file mode 100644
index 000000000000..43b7206998da
--- /dev/null
+++ b/arch/arm/mach-shmobile/include/mach/r8a7791.h
@@ -0,0 +1,6 @@
+#ifndef __ASM_R8A7791_H__
+#define __ASM_R8A7791_H__
+
+void r8a7791_clock_init(void);
+
+#endif /* __ASM_R8A7791_H__ */
diff --git a/arch/arm/mach-shmobile/setup-r8a7791.c b/arch/arm/mach-shmobile/setup-r8a7791.c
new file mode 100644
index 000000000000..88dcce1a6391
--- /dev/null
+++ b/arch/arm/mach-shmobile/setup-r8a7791.c
@@ -0,0 +1,38 @@
+/*
+ * r8a7791 processor support
+ *
+ * Copyright (C) 2013  Renesas Electronics Corporation
+ * Copyright (C) 2013  Renesas Solutions Corp.
+ * Copyright (C) 2013  Magnus Damm
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/of_platform.h>
+#include <mach/common.h>
+#include <mach/r8a7791.h>
+#include <asm/mach/arch.h>
+
+#ifdef CONFIG_USE_OF
+static const char *r8a7791_boards_compat_dt[] __initdata = {
+	"renesas,r8a7791",
+	NULL,
+};
+
+DT_MACHINE_START(R8A7791_DT, "Generic R8A7791 (Flattened Device Tree)")
+	.dt_compat	= r8a7791_boards_compat_dt,
+MACHINE_END
+#endif /* CONFIG_USE_OF */
-- 
cgit 


From e6491d08ed1d5d1e415d5371f2ff2fed67df83b0 Mon Sep 17 00:00:00 2001
From: Yoshikazu Fujikawa <yoshikazu.fujikawa.ue@renesas.com>
Date: Wed, 4 Sep 2013 12:46:08 +0900
Subject: ARM: shmobile: r8a7791 SCIF support

Add SCIF serial port support to the r8a7791 SoC by
adding platform devices for SCIFA0 -> SCIFA5 as well
as SCIFB0 -> SCIFB2 and SCIF0 -> SCIF5 together with
clock bindings. DT device description is excluded at
this point since such bindings are still under
development.

Signed-off-by: Yoshikazu Fujikawa <yoshikazu.fujikawa.ue@renesas.com>
Signed-off-by: Ryo Kataoka <ryo.kataoka.wt@renesas.com>
[damm@opensource.se: Forward ported to upstream, dropped holes in enum]
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a7791.c        | 36 +++++++++++-
 arch/arm/mach-shmobile/include/mach/r8a7791.h |  1 +
 arch/arm/mach-shmobile/setup-r8a7791.c        | 82 +++++++++++++++++++++++++++
 3 files changed, 118 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/clock-r8a7791.c b/arch/arm/mach-shmobile/clock-r8a7791.c
index 9929feb1b810..df3122ea4c69 100644
--- a/arch/arm/mach-shmobile/clock-r8a7791.c
+++ b/arch/arm/mach-shmobile/clock-r8a7791.c
@@ -48,6 +48,7 @@
 #define CPG_BASE 0xe6150000
 #define CPG_LEN 0x1000
 
+#define SMSTPCR0	0xE6150130
 #define SMSTPCR1	0xE6150134
 #define SMSTPCR2	0xe6150138
 #define SMSTPCR3	0xE615013C
@@ -56,6 +57,7 @@
 #define SMSTPCR8	0xE6150990
 #define SMSTPCR9	0xE6150994
 #define SMSTPCR10	0xE6150998
+#define SMSTPCR11	0xE615099C
 
 #define MODEMR		0xE6160060
 #define SDCKCR		0xE6150074
@@ -118,13 +120,28 @@ static struct clk *main_clks[] = {
 /* MSTP */
 enum {
 	MSTP721, MSTP720,
-/*	MSTP216, MSTP207, MSTP206, MSTP204, MSTP203, MSTP202,*/
+	MSTP719, MSTP718, MSTP715, MSTP714,
+	MSTP216, MSTP207, MSTP206,
+	MSTP204, MSTP203, MSTP202, MSTP1105, MSTP1106, MSTP1107,
 	MSTP_NR
 };
 
 static struct clk mstp_clks[MSTP_NR] = {
 	[MSTP721] = SH_CLK_MSTP32(&p_clk, SMSTPCR7, 21, 0), /* SCIF0 */
 	[MSTP720] = SH_CLK_MSTP32(&p_clk, SMSTPCR7, 20, 0), /* SCIF1 */
+	[MSTP719] = SH_CLK_MSTP32(&p_clk, SMSTPCR7, 19, 0), /* SCIF2 */
+	[MSTP718] = SH_CLK_MSTP32(&p_clk, SMSTPCR7, 18, 0), /* SCIF3 */
+	[MSTP715] = SH_CLK_MSTP32(&p_clk, SMSTPCR7, 15, 0), /* SCIF4 */
+	[MSTP714] = SH_CLK_MSTP32(&p_clk, SMSTPCR7, 14, 0), /* SCIF5 */
+	[MSTP216] = SH_CLK_MSTP32(&mp_clk, SMSTPCR2, 16, 0), /* SCIFB2 */
+	[MSTP207] = SH_CLK_MSTP32(&mp_clk, SMSTPCR2, 7, 0), /* SCIFB1 */
+	[MSTP206] = SH_CLK_MSTP32(&mp_clk, SMSTPCR2, 6, 0), /* SCIFB0 */
+	[MSTP204] = SH_CLK_MSTP32(&mp_clk, SMSTPCR2, 4, 0), /* SCIFA0 */
+	[MSTP203] = SH_CLK_MSTP32(&mp_clk, SMSTPCR2, 3, 0), /* SCIFA1 */
+	[MSTP202] = SH_CLK_MSTP32(&mp_clk, SMSTPCR2, 2, 0), /* SCIFA2 */
+	[MSTP1105] = SH_CLK_MSTP32(&mp_clk, SMSTPCR11, 5, 0), /* SCIFA3 */
+	[MSTP1106] = SH_CLK_MSTP32(&mp_clk, SMSTPCR11, 6, 0), /* SCIFA4 */
+	[MSTP1107] = SH_CLK_MSTP32(&mp_clk, SMSTPCR11, 7, 0), /* SCIFA5 */
 };
 
 static struct clk_lookup lookups[] = {
@@ -141,6 +158,23 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_CON_ID("mp",		&mp_clk),
 	CLKDEV_CON_ID("cp",		&cp_clk),
 	CLKDEV_CON_ID("peripheral_clk", &hp_clk),
+
+	/* MSTP */
+	CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]), /* SCIFA0 */
+	CLKDEV_DEV_ID("sh-sci.1", &mstp_clks[MSTP203]), /* SCIFA1 */
+	CLKDEV_DEV_ID("sh-sci.2", &mstp_clks[MSTP206]), /* SCIFB0 */
+	CLKDEV_DEV_ID("sh-sci.3", &mstp_clks[MSTP207]), /* SCIFB1 */
+	CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP216]), /* SCIFB2 */
+	CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP202]), /* SCIFA2 */
+	CLKDEV_DEV_ID("sh-sci.6", &mstp_clks[MSTP721]), /* SCIF0 */
+	CLKDEV_DEV_ID("sh-sci.7", &mstp_clks[MSTP720]), /* SCIF1 */
+	CLKDEV_DEV_ID("sh-sci.8", &mstp_clks[MSTP719]), /* SCIF2 */
+	CLKDEV_DEV_ID("sh-sci.9", &mstp_clks[MSTP718]), /* SCIF3 */
+	CLKDEV_DEV_ID("sh-sci.10", &mstp_clks[MSTP715]), /* SCIF4 */
+	CLKDEV_DEV_ID("sh-sci.11", &mstp_clks[MSTP714]), /* SCIF5 */
+	CLKDEV_DEV_ID("sh-sci.12", &mstp_clks[MSTP1105]), /* SCIFA3 */
+	CLKDEV_DEV_ID("sh-sci.13", &mstp_clks[MSTP1106]), /* SCIFA4 */
+	CLKDEV_DEV_ID("sh-sci.14", &mstp_clks[MSTP1107]), /* SCIFA5 */
 };
 
 #define R8A7791_CLOCK_ROOT(e, m, p0, p1, p30, p31)		\
diff --git a/arch/arm/mach-shmobile/include/mach/r8a7791.h b/arch/arm/mach-shmobile/include/mach/r8a7791.h
index 43b7206998da..d234b8cd9e91 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7791.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7791.h
@@ -1,6 +1,7 @@
 #ifndef __ASM_R8A7791_H__
 #define __ASM_R8A7791_H__
 
+void r8a7791_add_dt_devices(void);
 void r8a7791_clock_init(void);
 
 #endif /* __ASM_R8A7791_H__ */
diff --git a/arch/arm/mach-shmobile/setup-r8a7791.c b/arch/arm/mach-shmobile/setup-r8a7791.c
index 88dcce1a6391..0de6aec3bb63 100644
--- a/arch/arm/mach-shmobile/setup-r8a7791.c
+++ b/arch/arm/mach-shmobile/setup-r8a7791.c
@@ -22,10 +22,92 @@
 #include <linux/irq.h>
 #include <linux/kernel.h>
 #include <linux/of_platform.h>
+#include <linux/serial_sci.h>
 #include <mach/common.h>
+#include <mach/irqs.h>
 #include <mach/r8a7791.h>
 #include <asm/mach/arch.h>
 
+#define SCIF_COMMON(scif_type, baseaddr, irq)			\
+	.type		= scif_type,				\
+	.mapbase	= baseaddr,				\
+	.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,	\
+	.irqs		= SCIx_IRQ_MUXED(irq)
+
+#define SCIFA_DATA(index, baseaddr, irq)		\
+[index] = {						\
+	SCIF_COMMON(PORT_SCIFA, baseaddr, irq),		\
+	.scbrr_algo_id	= SCBRR_ALGO_4,			\
+	.scscr = SCSCR_RE | SCSCR_TE,	\
+}
+
+#define SCIFB_DATA(index, baseaddr, irq)	\
+[index] = {					\
+	SCIF_COMMON(PORT_SCIFB, baseaddr, irq),	\
+	.scbrr_algo_id	= SCBRR_ALGO_4,		\
+	.scscr = SCSCR_RE | SCSCR_TE,		\
+}
+
+#define SCIF_DATA(index, baseaddr, irq)		\
+[index] = {						\
+	SCIF_COMMON(PORT_SCIF, baseaddr, irq),		\
+	.scbrr_algo_id	= SCBRR_ALGO_2,			\
+	.scscr = SCSCR_RE | SCSCR_TE,	\
+}
+
+#define HSCIF_DATA(index, baseaddr, irq)		\
+[index] = {						\
+	SCIF_COMMON(PORT_HSCIF, baseaddr, irq),		\
+	.scbrr_algo_id	= SCBRR_ALGO_6,			\
+	.scscr = SCSCR_RE | SCSCR_TE,	\
+}
+
+enum { SCIFA0, SCIFA1, SCIFB0, SCIFB1, SCIFB2, SCIFA2, SCIF0, SCIF1,
+	SCIF2, SCIF3, SCIF4, SCIF5, SCIFA3, SCIFA4, SCIFA5 };
+
+static const struct plat_sci_port scif[] __initconst = {
+	SCIFA_DATA(SCIFA0, 0xe6c40000, gic_spi(144)), /* SCIFA0 */
+	SCIFA_DATA(SCIFA1, 0xe6c50000, gic_spi(145)), /* SCIFA1 */
+	SCIFB_DATA(SCIFB0, 0xe6c20000, gic_spi(148)), /* SCIFB0 */
+	SCIFB_DATA(SCIFB1, 0xe6c30000, gic_spi(149)), /* SCIFB1 */
+	SCIFB_DATA(SCIFB2, 0xe6ce0000, gic_spi(150)), /* SCIFB2 */
+	SCIFA_DATA(SCIFA2, 0xe6c60000, gic_spi(151)), /* SCIFA2 */
+	SCIF_DATA(SCIF0, 0xe6e60000, gic_spi(152)), /* SCIF0 */
+	SCIF_DATA(SCIF1, 0xe6e68000, gic_spi(153)), /* SCIF1 */
+	SCIF_DATA(SCIF2, 0xe6e58000, gic_spi(22)), /* SCIF2 */
+	SCIF_DATA(SCIF3, 0xe6ea8000, gic_spi(23)), /* SCIF3 */
+	SCIF_DATA(SCIF4, 0xe6ee0000, gic_spi(24)), /* SCIF4 */
+	SCIF_DATA(SCIF5, 0xe6ee8000, gic_spi(25)), /* SCIF5 */
+	SCIFA_DATA(SCIFA3, 0xe6c70000, gic_spi(29)), /* SCIFA3 */
+	SCIFA_DATA(SCIFA4, 0xe6c78000, gic_spi(30)), /* SCIFA4 */
+	SCIFA_DATA(SCIFA5, 0xe6c80000, gic_spi(31)), /* SCIFA5 */
+};
+
+static inline void r8a7791_register_scif(int idx)
+{
+	platform_device_register_data(&platform_bus, "sh-sci", idx, &scif[idx],
+				      sizeof(struct plat_sci_port));
+}
+
+void __init r8a7791_add_dt_devices(void)
+{
+	r8a7791_register_scif(SCIFA0);
+	r8a7791_register_scif(SCIFA1);
+	r8a7791_register_scif(SCIFB0);
+	r8a7791_register_scif(SCIFB1);
+	r8a7791_register_scif(SCIFB2);
+	r8a7791_register_scif(SCIFA2);
+	r8a7791_register_scif(SCIF0);
+	r8a7791_register_scif(SCIF1);
+	r8a7791_register_scif(SCIF2);
+	r8a7791_register_scif(SCIF3);
+	r8a7791_register_scif(SCIF4);
+	r8a7791_register_scif(SCIF5);
+	r8a7791_register_scif(SCIFA3);
+	r8a7791_register_scif(SCIFA4);
+	r8a7791_register_scif(SCIFA5);
+}
+
 #ifdef CONFIG_USE_OF
 static const char *r8a7791_boards_compat_dt[] __initdata = {
 	"renesas,r8a7791",
-- 
cgit 


From 1bebd72a71e4ea1e9f68a9e71faee724c5e8f903 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Wed, 4 Sep 2013 12:46:17 +0900
Subject: ARM: shmobile: r8a7791 CMT support

Add r8a7791 CMT support via channel 0 of CMT0. At this
point the CMT is used for clock event operation, but in
the future the arch timer will be the main timer and the
CMT will be used for deep sleep wake up only.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
(cherry picked from commit a7663b88280d00359715817620798e99d54d401c)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a7791.c        |  7 ++++++-
 arch/arm/mach-shmobile/include/mach/r8a7791.h |  1 +
 arch/arm/mach-shmobile/setup-r8a7791.c        | 29 +++++++++++++++++++++++++++
 3 files changed, 36 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/clock-r8a7791.c b/arch/arm/mach-shmobile/clock-r8a7791.c
index df3122ea4c69..c9a26f16ce5b 100644
--- a/arch/arm/mach-shmobile/clock-r8a7791.c
+++ b/arch/arm/mach-shmobile/clock-r8a7791.c
@@ -101,7 +101,7 @@ SH_FIXED_RATIO_CLK_SET(cp_clk,			extal_clk,	1, 2);
 SH_FIXED_RATIO_CLK_SET(pll1_div2_clk,		pll1_clk,	1, 2);
 SH_FIXED_RATIO_CLK_SET(hp_clk,			pll1_clk,	1, 12);
 SH_FIXED_RATIO_CLK_SET(p_clk,			pll1_clk,	1, 24);
-
+SH_FIXED_RATIO_CLK_SET(rclk_clk,		pll1_clk,	1, (48 * 1024));
 SH_FIXED_RATIO_CLK_SET(mp_clk,			pll1_div2_clk,	1, 15);
 
 static struct clk *main_clks[] = {
@@ -113,6 +113,7 @@ static struct clk *main_clks[] = {
 	&pll3_clk,
 	&hp_clk,
 	&p_clk,
+	&rclk_clk,
 	&mp_clk,
 	&cp_clk,
 };
@@ -123,6 +124,7 @@ enum {
 	MSTP719, MSTP718, MSTP715, MSTP714,
 	MSTP216, MSTP207, MSTP206,
 	MSTP204, MSTP203, MSTP202, MSTP1105, MSTP1106, MSTP1107,
+	MSTP124,
 	MSTP_NR
 };
 
@@ -142,6 +144,7 @@ static struct clk mstp_clks[MSTP_NR] = {
 	[MSTP1105] = SH_CLK_MSTP32(&mp_clk, SMSTPCR11, 5, 0), /* SCIFA3 */
 	[MSTP1106] = SH_CLK_MSTP32(&mp_clk, SMSTPCR11, 6, 0), /* SCIFA4 */
 	[MSTP1107] = SH_CLK_MSTP32(&mp_clk, SMSTPCR11, 7, 0), /* SCIFA5 */
+	[MSTP124] = SH_CLK_MSTP32(&rclk_clk, SMSTPCR1, 24, 0), /* CMT0 */
 };
 
 static struct clk_lookup lookups[] = {
@@ -155,6 +158,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_CON_ID("pll3",		&pll3_clk),
 	CLKDEV_CON_ID("hp",		&hp_clk),
 	CLKDEV_CON_ID("p",		&p_clk),
+	CLKDEV_CON_ID("rclk",		&rclk_clk),
 	CLKDEV_CON_ID("mp",		&mp_clk),
 	CLKDEV_CON_ID("cp",		&cp_clk),
 	CLKDEV_CON_ID("peripheral_clk", &hp_clk),
@@ -175,6 +179,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("sh-sci.12", &mstp_clks[MSTP1105]), /* SCIFA3 */
 	CLKDEV_DEV_ID("sh-sci.13", &mstp_clks[MSTP1106]), /* SCIFA4 */
 	CLKDEV_DEV_ID("sh-sci.14", &mstp_clks[MSTP1107]), /* SCIFA5 */
+	CLKDEV_DEV_ID("sh_cmt.0", &mstp_clks[MSTP124]),
 };
 
 #define R8A7791_CLOCK_ROOT(e, m, p0, p1, p30, p31)		\
diff --git a/arch/arm/mach-shmobile/include/mach/r8a7791.h b/arch/arm/mach-shmobile/include/mach/r8a7791.h
index d234b8cd9e91..2e6d66131083 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7791.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7791.h
@@ -3,5 +3,6 @@
 
 void r8a7791_add_dt_devices(void);
 void r8a7791_clock_init(void);
+void r8a7791_init_early(void);
 
 #endif /* __ASM_R8A7791_H__ */
diff --git a/arch/arm/mach-shmobile/setup-r8a7791.c b/arch/arm/mach-shmobile/setup-r8a7791.c
index 0de6aec3bb63..b56399d2e1de 100644
--- a/arch/arm/mach-shmobile/setup-r8a7791.c
+++ b/arch/arm/mach-shmobile/setup-r8a7791.c
@@ -23,6 +23,7 @@
 #include <linux/kernel.h>
 #include <linux/of_platform.h>
 #include <linux/serial_sci.h>
+#include <linux/sh_timer.h>
 #include <mach/common.h>
 #include <mach/irqs.h>
 #include <mach/r8a7791.h>
@@ -89,6 +90,25 @@ static inline void r8a7791_register_scif(int idx)
 				      sizeof(struct plat_sci_port));
 }
 
+static const struct sh_timer_config cmt00_platform_data __initconst = {
+	.name = "CMT00",
+	.timer_bit = 0,
+	.clockevent_rating = 80,
+};
+
+static const struct resource cmt00_resources[] __initconst = {
+	DEFINE_RES_MEM(0xffca0510, 0x0c),
+	DEFINE_RES_MEM(0xffca0500, 0x04),
+	DEFINE_RES_IRQ(gic_spi(142)), /* CMT0_0 */
+};
+
+#define r8a7791_register_cmt(idx)					\
+	platform_device_register_resndata(&platform_bus, "sh_cmt",	\
+					  idx, cmt##idx##_resources,	\
+					  ARRAY_SIZE(cmt##idx##_resources), \
+					  &cmt##idx##_platform_data,	\
+					  sizeof(struct sh_timer_config))
+
 void __init r8a7791_add_dt_devices(void)
 {
 	r8a7791_register_scif(SCIFA0);
@@ -106,6 +126,14 @@ void __init r8a7791_add_dt_devices(void)
 	r8a7791_register_scif(SCIFA3);
 	r8a7791_register_scif(SCIFA4);
 	r8a7791_register_scif(SCIFA5);
+	r8a7791_register_cmt(00);
+}
+
+void __init r8a7791_init_early(void)
+{
+#ifndef CONFIG_ARM_ARCH_TIMER
+	shmobile_setup_delay(1300, 2, 4); /* Cortex-A15 @ 1300MHz */
+#endif
 }
 
 #ifdef CONFIG_USE_OF
@@ -115,6 +143,7 @@ static const char *r8a7791_boards_compat_dt[] __initdata = {
 };
 
 DT_MACHINE_START(R8A7791_DT, "Generic R8A7791 (Flattened Device Tree)")
+	.init_early	= r8a7791_init_early,
 	.dt_compat	= r8a7791_boards_compat_dt,
 MACHINE_END
 #endif /* CONFIG_USE_OF */
-- 
cgit 


From 84ea52885ebb298231b9577dd8b53fdfa692c0b7 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Sun, 4 Aug 2013 17:43:19 -0700
Subject: ARM: shmobile: r8a7778: add USBHS clock

This patch adds USBHS clock for renesas_usbhs driver

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a7778.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-shmobile/clock-r8a7778.c b/arch/arm/mach-shmobile/clock-r8a7778.c
index 244a8dec4d04..fb6af83858e3 100644
--- a/arch/arm/mach-shmobile/clock-r8a7778.c
+++ b/arch/arm/mach-shmobile/clock-r8a7778.c
@@ -181,6 +181,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("r8a7778-vin.1", &mstp_clks[MSTP109]), /* VIN1 */
 	CLKDEV_DEV_ID("ehci-platform", &mstp_clks[MSTP100]), /* USB EHCI port0/1 */
 	CLKDEV_DEV_ID("ohci-platform", &mstp_clks[MSTP100]), /* USB OHCI port0/1 */
+	CLKDEV_DEV_ID("renesas_usbhs", &mstp_clks[MSTP100]), /* USB FUNC */
 	CLKDEV_DEV_ID("i2c-rcar.0", &mstp_clks[MSTP030]), /* I2C0 */
 	CLKDEV_DEV_ID("i2c-rcar.1", &mstp_clks[MSTP029]), /* I2C1 */
 	CLKDEV_DEV_ID("i2c-rcar.2", &mstp_clks[MSTP028]), /* I2C2 */
-- 
cgit 


From f39d35fcc2cd7a24ec3128adffd7876953999e1f Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Sun, 4 Aug 2013 17:43:01 -0700
Subject: ARM: shmobile: r8a7778: add usb phy power control function

USB phy initialisation function is needed from not only
USB Host but also USB Function too.
This patch adds usb phy common control function.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/include/mach/r8a7778.h |  2 ++
 arch/arm/mach-shmobile/setup-r8a7778.c        | 37 +++++++++++++++++++--------
 2 files changed, 28 insertions(+), 11 deletions(-)

diff --git a/arch/arm/mach-shmobile/include/mach/r8a7778.h b/arch/arm/mach-shmobile/include/mach/r8a7778.h
index adfcf51b163d..ea1dca6880f4 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7778.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7778.h
@@ -35,4 +35,6 @@ extern void r8a7778_clock_init(void);
 extern void r8a7778_init_irq_extpin(int irlm);
 extern void r8a7778_pinmux_init(void);
 
+extern int r8a7778_usb_phy_power(bool enable);
+
 #endif /* __ASM_R8A7778_H__ */
diff --git a/arch/arm/mach-shmobile/setup-r8a7778.c b/arch/arm/mach-shmobile/setup-r8a7778.c
index 6a2657ebd197..e484d1420a01 100644
--- a/arch/arm/mach-shmobile/setup-r8a7778.c
+++ b/arch/arm/mach-shmobile/setup-r8a7778.c
@@ -95,29 +95,46 @@ static struct sh_timer_config sh_tmu1_platform_data __initdata = {
 		&sh_tmu##idx##_platform_data,		\
 		sizeof(sh_tmu##idx##_platform_data))
 
-/* USB */
-static struct usb_phy *phy;
+int r8a7778_usb_phy_power(bool enable)
+{
+	static struct usb_phy *phy = NULL;
+	int ret = 0;
+
+	if (!phy)
+		phy = usb_get_phy(USB_PHY_TYPE_USB2);
+
+	if (IS_ERR(phy)) {
+		pr_err("kernel doesn't have usb phy driver\n");
+		return PTR_ERR(phy);
+	}
+
+	if (enable)
+		ret = usb_phy_init(phy);
+	else
+		usb_phy_shutdown(phy);
 
+	return ret;
+}
+
+/* USB */
 static int usb_power_on(struct platform_device *pdev)
 {
-	if (IS_ERR(phy))
-		return PTR_ERR(phy);
+	int ret = r8a7778_usb_phy_power(true);
+
+	if (ret)
+		return ret;
 
 	pm_runtime_enable(&pdev->dev);
 	pm_runtime_get_sync(&pdev->dev);
 
-	usb_phy_init(phy);
-
 	return 0;
 }
 
 static void usb_power_off(struct platform_device *pdev)
 {
-	if (IS_ERR(phy))
+	if (r8a7778_usb_phy_power(false))
 		return;
 
-	usb_phy_shutdown(phy);
-
 	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 }
@@ -353,8 +370,6 @@ void __init r8a7778_add_standard_devices(void)
 
 void __init r8a7778_init_late(void)
 {
-	phy = usb_get_phy(USB_PHY_TYPE_USB2);
-
 	platform_device_register_full(&ehci_info);
 	platform_device_register_full(&ohci_info);
 }
-- 
cgit 


From df83d907348b41f40da83b267242b5dca041d4ef Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Wed, 27 Mar 2013 11:55:35 +0100
Subject: ARM: shmobile: marzen: Add Display Unit support

Support the DU0 VGA and DU1 LVDS outputs. DU1 is connected to a
Mitsubishi AA104XD12 panel (10.4" XGA).

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-marzen.c | 72 +++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)

diff --git a/arch/arm/mach-shmobile/board-marzen.c b/arch/arm/mach-shmobile/board-marzen.c
index 3f5044fda4e3..434b213cc738 100644
--- a/arch/arm/mach-shmobile/board-marzen.c
+++ b/arch/arm/mach-shmobile/board-marzen.c
@@ -30,6 +30,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/pinctrl/machine.h>
 #include <linux/platform_data/gpio-rcar.h>
+#include <linux/platform_data/rcar-du.h>
 #include <linux/platform_data/usb-rcar-phy.h>
 #include <linux/regulator/fixed.h>
 #include <linux/regulator/machine.h>
@@ -169,6 +170,63 @@ static struct platform_device hspi_device = {
 	.num_resources	= ARRAY_SIZE(hspi_resources),
 };
 
+/*
+ * DU
+ *
+ * The panel only specifies the [hv]display and [hv]total values. The position
+ * and width of the sync pulses don't matter, they're copied from VESA timings.
+ */
+static struct rcar_du_encoder_data du_encoders[] = {
+	{
+		.type = RCAR_DU_ENCODER_VGA,
+		.output = RCAR_DU_OUTPUT_DPAD0,
+	}, {
+		.type = RCAR_DU_ENCODER_LVDS,
+		.output = RCAR_DU_OUTPUT_DPAD1,
+		.connector.lvds.panel = {
+			.width_mm = 210,
+			.height_mm = 158,
+			.mode = {
+				.clock = 65000,
+				.hdisplay = 1024,
+				.hsync_start = 1048,
+				.hsync_end = 1184,
+				.htotal = 1344,
+				.vdisplay = 768,
+				.vsync_start = 771,
+				.vsync_end = 777,
+				.vtotal = 806,
+				.flags = 0,
+			},
+		},
+	},
+};
+
+static const struct rcar_du_platform_data du_pdata __initconst = {
+	.encoders = du_encoders,
+	.num_encoders = ARRAY_SIZE(du_encoders),
+};
+
+static const struct resource du_resources[] __initconst = {
+	DEFINE_RES_MEM(0xfff80000, 0x40000),
+	DEFINE_RES_IRQ(gic_iid(0x3f)),
+};
+
+static void __init marzen_add_du_device(void)
+{
+	struct platform_device_info info = {
+		.name = "rcar-du-r8a7779",
+		.id = -1,
+		.res = du_resources,
+		.num_res = ARRAY_SIZE(du_resources),
+		.data = &du_pdata,
+		.size_data = sizeof(du_pdata),
+		.dma_mask = DMA_BIT_MASK(32),
+	};
+
+	platform_device_register_full(&info);
+}
+
 /* LEDS */
 static struct gpio_led marzen_leds[] = {
 	{
@@ -237,6 +295,19 @@ static struct platform_device *marzen_devices[] __initdata = {
 };
 
 static const struct pinctrl_map marzen_pinctrl_map[] = {
+	/* DU (CN10: ARGB0, CN13: LVDS) */
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7779", "pfc-r8a7779",
+				  "du0_rgb888", "du0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7779", "pfc-r8a7779",
+				  "du0_sync_1", "du0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7779", "pfc-r8a7779",
+				  "du0_clk_out_0", "du0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7779", "pfc-r8a7779",
+				  "du1_rgb666", "du1"),
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7779", "pfc-r8a7779",
+				  "du1_sync_1", "du1"),
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7779", "pfc-r8a7779",
+				  "du1_clk_out", "du1"),
 	/* HSPI0 */
 	PIN_MAP_MUX_GROUP_DEFAULT("sh-hspi.0", "pfc-r8a7779",
 				  "hspi0", "hspi0"),
@@ -297,6 +368,7 @@ static void __init marzen_init(void)
 	r8a7779_add_vin_device(1, &vin_platform_data);
 	r8a7779_add_vin_device(3, &vin_platform_data);
 	platform_add_devices(marzen_devices, ARRAY_SIZE(marzen_devices));
+	marzen_add_du_device();
 }
 
 static const char *marzen_boards_compat_dt[] __initdata = {
-- 
cgit 


From e0b890d35cdff506b72129b55a166d22fc9bfa64 Mon Sep 17 00:00:00 2001
From: Gleb Natapov <gleb@redhat.com>
Date: Wed, 25 Sep 2013 12:51:33 +0300
Subject: KVM: nVMX: Amend nested_run_pending logic

EXIT_REASON_VMLAUNCH/EXIT_REASON_VMRESUME exit does not mean that nested
VM will actually run during next entry. Move setting nested_run_pending
closer to vmentry emulation code and move its clearing close to vmexit to
minimize amount of code that will erroneously run with nested_run_pending
set.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/vmx.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index e6e8fbc02d5e..7eb05126b44c 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -6742,20 +6742,6 @@ static int vmx_handle_exit(struct kvm_vcpu *vcpu)
 	if (vmx->emulation_required)
 		return handle_invalid_guest_state(vcpu);
 
-	/*
-	 * the KVM_REQ_EVENT optimization bit is only on for one entry, and if
-	 * we did not inject a still-pending event to L1 now because of
-	 * nested_run_pending, we need to re-enable this bit.
-	 */
-	if (vmx->nested.nested_run_pending)
-		kvm_make_request(KVM_REQ_EVENT, vcpu);
-
-	if (!is_guest_mode(vcpu) && (exit_reason == EXIT_REASON_VMLAUNCH ||
-	    exit_reason == EXIT_REASON_VMRESUME))
-		vmx->nested.nested_run_pending = 1;
-	else
-		vmx->nested.nested_run_pending = 0;
-
 	if (is_guest_mode(vcpu) && nested_vmx_exit_handled(vcpu)) {
 		nested_vmx_vmexit(vcpu);
 		return 1;
@@ -7290,6 +7276,16 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 	vmx->exit_reason = vmcs_read32(VM_EXIT_REASON);
 	trace_kvm_exit(vmx->exit_reason, vcpu, KVM_ISA_VMX);
 
+	/*
+	 * the KVM_REQ_EVENT optimization bit is only on for one entry, and if
+	 * we did not inject a still-pending event to L1 now because of
+	 * nested_run_pending, we need to re-enable this bit.
+	 */
+	if (vmx->nested.nested_run_pending)
+		kvm_make_request(KVM_REQ_EVENT, vcpu);
+
+	vmx->nested.nested_run_pending = 0;
+
 	vmx_complete_atomic_exit(vmx);
 	vmx_recover_nmi_blocking(vmx);
 	vmx_complete_interrupts(vmx);
@@ -7948,6 +7944,8 @@ static int nested_vmx_run(struct kvm_vcpu *vcpu, bool launch)
 
 	enter_guest_mode(vcpu);
 
+	vmx->nested.nested_run_pending = 1;
+
 	vmx->nested.vmcs01_tsc_offset = vmcs_read64(TSC_OFFSET);
 
 	cpu = get_cpu();
-- 
cgit 


From 851eb6677cb14f7fada8735041b12f5add0c247e Mon Sep 17 00:00:00 2001
From: Gleb Natapov <gleb@redhat.com>
Date: Wed, 25 Sep 2013 12:51:34 +0300
Subject: KVM: nVMX: Do not put exception that caused vmexit to
 IDT_VECTORING_INFO

If an exception causes vmexit directly it should not be reported in
IDT_VECTORING_INFO during the exit. For that we need to be able to
distinguish between exception that is injected into nested VM and one that
is reinjected because its delivery failed. Fortunately we already have
mechanism to do so for nested SVM, so here we just use correct function
to requeue exceptions and make sure that reinjected exception is not
moved to IDT_VECTORING_INFO during vmexit emulation and not re-checked
for interception during delivery.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/vmx.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 7eb05126b44c..663bc5e4d7da 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -1921,7 +1921,7 @@ static void vmx_queue_exception(struct kvm_vcpu *vcpu, unsigned nr,
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
 	u32 intr_info = nr | INTR_INFO_VALID_MASK;
 
-	if (nr == PF_VECTOR && is_guest_mode(vcpu) &&
+	if (!reinject && nr == PF_VECTOR && is_guest_mode(vcpu) &&
 	    !vmx->nested.nested_run_pending && nested_pf_handled(vcpu))
 		return;
 
@@ -7053,9 +7053,9 @@ static void __vmx_complete_interrupts(struct kvm_vcpu *vcpu,
 	case INTR_TYPE_HARD_EXCEPTION:
 		if (idt_vectoring_info & VECTORING_INFO_DELIVER_CODE_MASK) {
 			u32 err = vmcs_read32(error_code_field);
-			kvm_queue_exception_e(vcpu, vector, err);
+			kvm_requeue_exception_e(vcpu, vector, err);
 		} else
-			kvm_queue_exception(vcpu, vector);
+			kvm_requeue_exception(vcpu, vector);
 		break;
 	case INTR_TYPE_SOFT_INTR:
 		vcpu->arch.event_exit_inst_len = vmcs_read32(instr_len_field);
@@ -8013,7 +8013,7 @@ static void vmcs12_save_pending_event(struct kvm_vcpu *vcpu,
 	u32 idt_vectoring;
 	unsigned int nr;
 
-	if (vcpu->arch.exception.pending) {
+	if (vcpu->arch.exception.pending && vcpu->arch.exception.reinject) {
 		nr = vcpu->arch.exception.nr;
 		idt_vectoring = nr | VECTORING_INFO_VALID_MASK;
 
-- 
cgit 


From e011c663b9c786d115c0f45e5b0bfae0c39428d4 Mon Sep 17 00:00:00 2001
From: Gleb Natapov <gleb@redhat.com>
Date: Wed, 25 Sep 2013 12:51:35 +0300
Subject: KVM: nVMX: Check all exceptions for intercept during delivery to L2

All exceptions should be checked for intercept during delivery to L2,
but we check only #PF currently. Drop nested_run_pending while we are
at it since exception cannot be injected during vmentry anyway.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
[Renamed the nested_vmx_check_exception function. - Paolo]
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/vmx.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 663bc5e4d7da..ac9ded4d4257 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -1898,16 +1898,12 @@ static void skip_emulated_instruction(struct kvm_vcpu *vcpu)
 /*
  * KVM wants to inject page-faults which it got to the guest. This function
  * checks whether in a nested guest, we need to inject them to L1 or L2.
- * This function assumes it is called with the exit reason in vmcs02 being
- * a #PF exception (this is the only case in which KVM injects a #PF when L2
- * is running).
  */
-static int nested_pf_handled(struct kvm_vcpu *vcpu)
+static int nested_vmx_check_exception(struct kvm_vcpu *vcpu, unsigned nr)
 {
 	struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
 
-	/* TODO: also check PFEC_MATCH/MASK, not just EB.PF. */
-	if (!(vmcs12->exception_bitmap & (1u << PF_VECTOR)))
+	if (!(vmcs12->exception_bitmap & (1u << nr)))
 		return 0;
 
 	nested_vmx_vmexit(vcpu);
@@ -1921,8 +1917,8 @@ static void vmx_queue_exception(struct kvm_vcpu *vcpu, unsigned nr,
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
 	u32 intr_info = nr | INTR_INFO_VALID_MASK;
 
-	if (!reinject && nr == PF_VECTOR && is_guest_mode(vcpu) &&
-	    !vmx->nested.nested_run_pending && nested_pf_handled(vcpu))
+	if (!reinject && is_guest_mode(vcpu) &&
+	    nested_vmx_check_exception(vcpu, nr))
 		return;
 
 	if (has_error_code) {
-- 
cgit 


From feaf0c7dc473fefa1f263d88788f57e39b4b007e Mon Sep 17 00:00:00 2001
From: Gleb Natapov <gleb@redhat.com>
Date: Wed, 25 Sep 2013 12:51:36 +0300
Subject: KVM: nVMX: Do not generate #DF if #PF happens during exception
 delivery into L2

If #PF happens during delivery of an exception into L2 and L1 also do
not have the page mapped in its shadow page table then L0 needs to
generate vmexit to L2 with original event in IDT_VECTORING_INFO, but
current code combines both exception and generates #DF instead. Fix that
by providing nVMX specific function to handle page faults during page
table walk that handles this case correctly.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/vmx.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index ac9ded4d4257..be7fd0e1ad42 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -7518,6 +7518,20 @@ static void nested_ept_uninit_mmu_context(struct kvm_vcpu *vcpu)
 	vcpu->arch.walk_mmu = &vcpu->arch.mmu;
 }
 
+static void vmx_inject_page_fault_nested(struct kvm_vcpu *vcpu,
+		struct x86_exception *fault)
+{
+	struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
+
+	WARN_ON(!is_guest_mode(vcpu));
+
+	/* TODO: also check PFEC_MATCH/MASK, not just EB.PF. */
+	if (vmcs12->exception_bitmap & (1u << PF_VECTOR))
+		nested_vmx_vmexit(vcpu);
+	else
+		kvm_inject_page_fault(vcpu, fault);
+}
+
 /*
  * prepare_vmcs02 is called when the L1 guest hypervisor runs its nested
  * L2 guest. L1 has a vmcs for L2 (vmcs12), and this function "merges" it
@@ -7771,6 +7785,9 @@ static void prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
 	kvm_set_cr3(vcpu, vmcs12->guest_cr3);
 	kvm_mmu_reset_context(vcpu);
 
+	if (!enable_ept)
+		vcpu->arch.walk_mmu->inject_page_fault = vmx_inject_page_fault_nested;
+
 	/*
 	 * L1 may access the L2's PDPTR, so save them to construct vmcs12
 	 */
@@ -8230,6 +8247,9 @@ static void load_vmcs12_host_state(struct kvm_vcpu *vcpu,
 	kvm_set_cr3(vcpu, vmcs12->host_cr3);
 	kvm_mmu_reset_context(vcpu);
 
+	if (!enable_ept)
+		vcpu->arch.walk_mmu->inject_page_fault = kvm_inject_page_fault;
+
 	if (enable_vpid) {
 		/*
 		 * Trivially support vpid by letting L2s share their parent
-- 
cgit 


From 4fa92fb25ae5a2d79d872ab54df511c831b1f363 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Tue, 10 Sep 2013 12:57:17 +0200
Subject: KVM: cleanup (physical) CPU hotplug

Remove the useless argument, and do not do anything if there are no
VMs running at the time of the hotplug.

Cc: kvm@vger.kernel.org
Cc: gleb@redhat.com
Cc: jan.kiszka@siemens.com
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 virt/kvm/kvm_main.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 979bff485fb0..426051d66173 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2681,10 +2681,11 @@ static void hardware_enable_nolock(void *junk)
 	}
 }
 
-static void hardware_enable(void *junk)
+static void hardware_enable(void)
 {
 	raw_spin_lock(&kvm_lock);
-	hardware_enable_nolock(junk);
+	if (kvm_usage_count)
+		hardware_enable_nolock(NULL);
 	raw_spin_unlock(&kvm_lock);
 }
 
@@ -2698,10 +2699,11 @@ static void hardware_disable_nolock(void *junk)
 	kvm_arch_hardware_disable(NULL);
 }
 
-static void hardware_disable(void *junk)
+static void hardware_disable(void)
 {
 	raw_spin_lock(&kvm_lock);
-	hardware_disable_nolock(junk);
+	if (kvm_usage_count)
+		hardware_disable_nolock(NULL);
 	raw_spin_unlock(&kvm_lock);
 }
 
@@ -2748,20 +2750,17 @@ static int kvm_cpu_hotplug(struct notifier_block *notifier, unsigned long val,
 {
 	int cpu = (long)v;
 
-	if (!kvm_usage_count)
-		return NOTIFY_OK;
-
 	val &= ~CPU_TASKS_FROZEN;
 	switch (val) {
 	case CPU_DYING:
 		printk(KERN_INFO "kvm: disabling virtualization on CPU%d\n",
 		       cpu);
-		hardware_disable(NULL);
+		hardware_disable();
 		break;
 	case CPU_STARTING:
 		printk(KERN_INFO "kvm: enabling virtualization on CPU%d\n",
 		       cpu);
-		hardware_enable(NULL);
+		hardware_enable();
 		break;
 	}
 	return NOTIFY_OK;
-- 
cgit 


From 4a937f96f3a29c58b7edd349d2e4dfac371efdf2 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Tue, 10 Sep 2013 12:58:35 +0200
Subject: KVM: protect kvm_usage_count with its own spinlock

The VM list need not be protected by a raw spinlock.  Separate the
two so that kvm_lock can be made non-raw.

Cc: kvm@vger.kernel.org
Cc: gleb@redhat.com
Cc: jan.kiszka@siemens.com
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 Documentation/virtual/kvm/locking.txt |  6 +++++-
 virt/kvm/kvm_main.c                   | 19 ++++++++++---------
 2 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/Documentation/virtual/kvm/locking.txt b/Documentation/virtual/kvm/locking.txt
index a9f366e73c8e..ba9e1c2150c2 100644
--- a/Documentation/virtual/kvm/locking.txt
+++ b/Documentation/virtual/kvm/locking.txt
@@ -135,7 +135,11 @@ Name:		kvm_lock
 Type:		raw_spinlock
 Arch:		any
 Protects:	- vm_list
-		- hardware virtualization enable/disable
+
+Name:		kvm_count_lock
+Type:		raw_spinlock_t
+Arch:		any
+Protects:	- hardware virtualization enable/disable
 Comment:	'raw' because hardware enabling/disabling must be atomic /wrt
 		migration.
 
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 426051d66173..eb94343c2ed2 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -71,6 +71,7 @@ MODULE_LICENSE("GPL");
  */
 
 DEFINE_RAW_SPINLOCK(kvm_lock);
+static DEFINE_RAW_SPINLOCK(kvm_count_lock);
 LIST_HEAD(vm_list);
 
 static cpumask_var_t cpus_hardware_enabled;
@@ -2683,10 +2684,10 @@ static void hardware_enable_nolock(void *junk)
 
 static void hardware_enable(void)
 {
-	raw_spin_lock(&kvm_lock);
+	raw_spin_lock(&kvm_count_lock);
 	if (kvm_usage_count)
 		hardware_enable_nolock(NULL);
-	raw_spin_unlock(&kvm_lock);
+	raw_spin_unlock(&kvm_count_lock);
 }
 
 static void hardware_disable_nolock(void *junk)
@@ -2701,10 +2702,10 @@ static void hardware_disable_nolock(void *junk)
 
 static void hardware_disable(void)
 {
-	raw_spin_lock(&kvm_lock);
+	raw_spin_lock(&kvm_count_lock);
 	if (kvm_usage_count)
 		hardware_disable_nolock(NULL);
-	raw_spin_unlock(&kvm_lock);
+	raw_spin_unlock(&kvm_count_lock);
 }
 
 static void hardware_disable_all_nolock(void)
@@ -2718,16 +2719,16 @@ static void hardware_disable_all_nolock(void)
 
 static void hardware_disable_all(void)
 {
-	raw_spin_lock(&kvm_lock);
+	raw_spin_lock(&kvm_count_lock);
 	hardware_disable_all_nolock();
-	raw_spin_unlock(&kvm_lock);
+	raw_spin_unlock(&kvm_count_lock);
 }
 
 static int hardware_enable_all(void)
 {
 	int r = 0;
 
-	raw_spin_lock(&kvm_lock);
+	raw_spin_lock(&kvm_count_lock);
 
 	kvm_usage_count++;
 	if (kvm_usage_count == 1) {
@@ -2740,7 +2741,7 @@ static int hardware_enable_all(void)
 		}
 	}
 
-	raw_spin_unlock(&kvm_lock);
+	raw_spin_unlock(&kvm_count_lock);
 
 	return r;
 }
@@ -3130,7 +3131,7 @@ static int kvm_suspend(void)
 static void kvm_resume(void)
 {
 	if (kvm_usage_count) {
-		WARN_ON(raw_spin_is_locked(&kvm_lock));
+		WARN_ON(raw_spin_is_locked(&kvm_count_lock));
 		hardware_enable_nolock(NULL);
 	}
 }
-- 
cgit 


From 2f303b74a62fb74983c0a66e2df353be963c527c Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Wed, 25 Sep 2013 13:53:07 +0200
Subject: KVM: Convert kvm_lock back to non-raw spinlock

In commit e935b8372cf8 ("KVM: Convert kvm_lock to raw_spinlock"),
the kvm_lock was made a raw lock.  However, the kvm mmu_shrink()
function tries to grab the (non-raw) mmu_lock within the scope of
the raw locked kvm_lock being held.  This leads to the following:

BUG: sleeping function called from invalid context at kernel/rtmutex.c:659
in_atomic(): 1, irqs_disabled(): 0, pid: 55, name: kswapd0
Preemption disabled at:[<ffffffffa0376eac>] mmu_shrink+0x5c/0x1b0 [kvm]

Pid: 55, comm: kswapd0 Not tainted 3.4.34_preempt-rt
Call Trace:
 [<ffffffff8106f2ad>] __might_sleep+0xfd/0x160
 [<ffffffff817d8d64>] rt_spin_lock+0x24/0x50
 [<ffffffffa0376f3c>] mmu_shrink+0xec/0x1b0 [kvm]
 [<ffffffff8111455d>] shrink_slab+0x17d/0x3a0
 [<ffffffff81151f00>] ? mem_cgroup_iter+0x130/0x260
 [<ffffffff8111824a>] balance_pgdat+0x54a/0x730
 [<ffffffff8111fe47>] ? set_pgdat_percpu_threshold+0xa7/0xd0
 [<ffffffff811185bf>] kswapd+0x18f/0x490
 [<ffffffff81070961>] ? get_parent_ip+0x11/0x50
 [<ffffffff81061970>] ? __init_waitqueue_head+0x50/0x50
 [<ffffffff81118430>] ? balance_pgdat+0x730/0x730
 [<ffffffff81060d2b>] kthread+0xdb/0xe0
 [<ffffffff8106e122>] ? finish_task_switch+0x52/0x100
 [<ffffffff817e1e94>] kernel_thread_helper+0x4/0x10
 [<ffffffff81060c50>] ? __init_kthread_worker+0x

After the previous patch, kvm_lock need not be a raw spinlock anymore,
so change it back.

Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: kvm@vger.kernel.org
Cc: gleb@redhat.com
Cc: jan.kiszka@siemens.com
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 Documentation/virtual/kvm/locking.txt |  2 +-
 arch/x86/kvm/mmu.c                    |  5 ++---
 arch/x86/kvm/x86.c                    |  8 ++++----
 include/linux/kvm_host.h              |  2 +-
 virt/kvm/kvm_main.c                   | 18 +++++++++---------
 5 files changed, 17 insertions(+), 18 deletions(-)

diff --git a/Documentation/virtual/kvm/locking.txt b/Documentation/virtual/kvm/locking.txt
index ba9e1c2150c2..f8869410d40c 100644
--- a/Documentation/virtual/kvm/locking.txt
+++ b/Documentation/virtual/kvm/locking.txt
@@ -132,7 +132,7 @@ See the comments in spte_has_volatile_bits() and mmu_spte_update().
 ------------
 
 Name:		kvm_lock
-Type:		raw_spinlock
+Type:		spinlock_t
 Arch:		any
 Protects:	- vm_list
 
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index dce0df8150df..cf95cfe050a6 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -4428,7 +4428,7 @@ mmu_shrink_scan(struct shrinker *shrink, struct shrink_control *sc)
 	int nr_to_scan = sc->nr_to_scan;
 	unsigned long freed = 0;
 
-	raw_spin_lock(&kvm_lock);
+	spin_lock(&kvm_lock);
 
 	list_for_each_entry(kvm, &vm_list, vm_list) {
 		int idx;
@@ -4478,9 +4478,8 @@ unlock:
 		break;
 	}
 
-	raw_spin_unlock(&kvm_lock);
+	spin_unlock(&kvm_lock);
 	return freed;
-
 }
 
 static unsigned long
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index e5ca72a5cdb6..187f824b1454 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5263,7 +5263,7 @@ static int kvmclock_cpufreq_notifier(struct notifier_block *nb, unsigned long va
 
 	smp_call_function_single(freq->cpu, tsc_khz_changed, freq, 1);
 
-	raw_spin_lock(&kvm_lock);
+	spin_lock(&kvm_lock);
 	list_for_each_entry(kvm, &vm_list, vm_list) {
 		kvm_for_each_vcpu(i, vcpu, kvm) {
 			if (vcpu->cpu != freq->cpu)
@@ -5273,7 +5273,7 @@ static int kvmclock_cpufreq_notifier(struct notifier_block *nb, unsigned long va
 				send_ipi = 1;
 		}
 	}
-	raw_spin_unlock(&kvm_lock);
+	spin_unlock(&kvm_lock);
 
 	if (freq->old < freq->new && send_ipi) {
 		/*
@@ -5426,12 +5426,12 @@ static void pvclock_gtod_update_fn(struct work_struct *work)
 	struct kvm_vcpu *vcpu;
 	int i;
 
-	raw_spin_lock(&kvm_lock);
+	spin_lock(&kvm_lock);
 	list_for_each_entry(kvm, &vm_list, vm_list)
 		kvm_for_each_vcpu(i, vcpu, kvm)
 			set_bit(KVM_REQ_MASTERCLOCK_UPDATE, &vcpu->requests);
 	atomic_set(&kvm_guest_has_master_clock, 0);
-	raw_spin_unlock(&kvm_lock);
+	spin_unlock(&kvm_lock);
 }
 
 static DECLARE_WORK(pvclock_gtod_work, pvclock_gtod_update_fn);
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 749bdb12cd15..7c961e1e9270 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -142,7 +142,7 @@ struct kvm;
 struct kvm_vcpu;
 extern struct kmem_cache *kvm_vcpu_cache;
 
-extern raw_spinlock_t kvm_lock;
+extern spinlock_t kvm_lock;
 extern struct list_head vm_list;
 
 struct kvm_io_range {
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index eb94343c2ed2..d469114aff09 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -70,7 +70,7 @@ MODULE_LICENSE("GPL");
  * 		kvm->lock --> kvm->slots_lock --> kvm->irq_lock
  */
 
-DEFINE_RAW_SPINLOCK(kvm_lock);
+DEFINE_SPINLOCK(kvm_lock);
 static DEFINE_RAW_SPINLOCK(kvm_count_lock);
 LIST_HEAD(vm_list);
 
@@ -491,9 +491,9 @@ static struct kvm *kvm_create_vm(unsigned long type)
 	if (r)
 		goto out_err;
 
-	raw_spin_lock(&kvm_lock);
+	spin_lock(&kvm_lock);
 	list_add(&kvm->vm_list, &vm_list);
-	raw_spin_unlock(&kvm_lock);
+	spin_unlock(&kvm_lock);
 
 	return kvm;
 
@@ -582,9 +582,9 @@ static void kvm_destroy_vm(struct kvm *kvm)
 	struct mm_struct *mm = kvm->mm;
 
 	kvm_arch_sync_events(kvm);
-	raw_spin_lock(&kvm_lock);
+	spin_lock(&kvm_lock);
 	list_del(&kvm->vm_list);
-	raw_spin_unlock(&kvm_lock);
+	spin_unlock(&kvm_lock);
 	kvm_free_irq_routing(kvm);
 	for (i = 0; i < KVM_NR_BUSES; i++)
 		kvm_io_bus_destroy(kvm->buses[i]);
@@ -3054,10 +3054,10 @@ static int vm_stat_get(void *_offset, u64 *val)
 	struct kvm *kvm;
 
 	*val = 0;
-	raw_spin_lock(&kvm_lock);
+	spin_lock(&kvm_lock);
 	list_for_each_entry(kvm, &vm_list, vm_list)
 		*val += *(u32 *)((void *)kvm + offset);
-	raw_spin_unlock(&kvm_lock);
+	spin_unlock(&kvm_lock);
 	return 0;
 }
 
@@ -3071,12 +3071,12 @@ static int vcpu_stat_get(void *_offset, u64 *val)
 	int i;
 
 	*val = 0;
-	raw_spin_lock(&kvm_lock);
+	spin_lock(&kvm_lock);
 	list_for_each_entry(kvm, &vm_list, vm_list)
 		kvm_for_each_vcpu(i, vcpu, kvm)
 			*val += *(u32 *)((void *)vcpu + offset);
 
-	raw_spin_unlock(&kvm_lock);
+	spin_unlock(&kvm_lock);
 	return 0;
 }
 
-- 
cgit 


From 27113d63daac0aacaa26b1fabfc23391de4284f4 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Thu, 8 Aug 2013 00:43:00 +0200
Subject: ARM: shmobile: lager: Constify platform data and resources

Platform data and resources for Lager devices are kmemdup()ed when the
corresponding devices are registered and can thus be declared as const.
Do so.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-lager.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index 4047fac811c0..afd51375075f 100644
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -55,7 +55,7 @@ static struct gpio_led lager_leds[] = {
 	},
 };
 
-static __initdata struct gpio_led_platform_data lager_leds_pdata = {
+static const struct gpio_led_platform_data lager_leds_pdata __initconst = {
 	.leds		= lager_leds,
 	.num_leds	= ARRAY_SIZE(lager_leds),
 };
@@ -71,7 +71,7 @@ static struct gpio_keys_button gpio_buttons[] = {
 	GPIO_KEY(KEY_1,		RCAR_GP_PIN(1, 14),	"SW2-pin1"),
 };
 
-static __initdata struct gpio_keys_platform_data lager_keys_pdata = {
+static const struct gpio_keys_platform_data lager_keys_pdata __initconst = {
 	.buttons	= gpio_buttons,
 	.nbuttons	= ARRAY_SIZE(gpio_buttons),
 };
@@ -83,24 +83,24 @@ static struct regulator_consumer_supply fixed3v3_power_consumers[] =
 };
 
 /* MMCIF */
-static struct sh_mmcif_plat_data mmcif1_pdata __initdata = {
+static const struct sh_mmcif_plat_data mmcif1_pdata __initconst = {
 	.caps		= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
 };
 
-static struct resource mmcif1_resources[] __initdata = {
+static const struct resource mmcif1_resources[] __initconst = {
 	DEFINE_RES_MEM_NAMED(0xee220000, 0x80, "MMCIF1"),
 	DEFINE_RES_IRQ(gic_spi(170)),
 };
 
 /* Ether */
-static struct sh_eth_plat_data ether_pdata __initdata = {
+static const struct sh_eth_plat_data ether_pdata __initconst = {
 	.phy			= 0x1,
 	.edmac_endian		= EDMAC_LITTLE_ENDIAN,
 	.phy_interface		= PHY_INTERFACE_MODE_RMII,
 	.ether_link_active_low	= 1,
 };
 
-static struct resource ether_resources[] __initdata = {
+static const struct resource ether_resources[] __initconst = {
 	DEFINE_RES_MEM(0xee700000, 0x400),
 	DEFINE_RES_IRQ(gic_spi(162)),
 };
@@ -155,7 +155,7 @@ static void __init lager_add_standard_devices(void)
 					  &ether_pdata, sizeof(ether_pdata));
 }
 
-static const char *lager_boards_compat_dt[] __initdata = {
+static const char * const lager_boards_compat_dt[] __initconst = {
 	"renesas,lager",
 	NULL,
 };
-- 
cgit 


From c75a5afa44e71c99e1793824121608f0db48f014 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Tue, 16 Apr 2013 12:39:11 +0200
Subject: ARM: shmobile: lager: Add Display Unit support

Only the VGA output is currently supported.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-lager.c | 66 ++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)

diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index ffb6f0ac7606..caec99e332ef 100644
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -28,6 +28,7 @@
 #include <linux/mmc/sh_mmcif.h>
 #include <linux/pinctrl/machine.h>
 #include <linux/platform_data/gpio-rcar.h>
+#include <linux/platform_data/rcar-du.h>
 #include <linux/platform_device.h>
 #include <linux/regulator/fixed.h>
 #include <linux/regulator/machine.h>
@@ -38,6 +39,62 @@
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 
+/* DU */
+static struct rcar_du_encoder_data lager_du_encoders[] = {
+	{
+		.type = RCAR_DU_ENCODER_VGA,
+		.output = RCAR_DU_OUTPUT_DPAD0,
+	}, {
+		.type = RCAR_DU_ENCODER_NONE,
+		.output = RCAR_DU_OUTPUT_LVDS1,
+		.connector.lvds.panel = {
+			.width_mm = 210,
+			.height_mm = 158,
+			.mode = {
+				.clock = 65000,
+				.hdisplay = 1024,
+				.hsync_start = 1048,
+				.hsync_end = 1184,
+				.htotal = 1344,
+				.vdisplay = 768,
+				.vsync_start = 771,
+				.vsync_end = 777,
+				.vtotal = 806,
+				.flags = 0,
+			},
+		},
+	},
+};
+
+static const struct rcar_du_platform_data lager_du_pdata __initconst = {
+	.encoders = lager_du_encoders,
+	.num_encoders = ARRAY_SIZE(lager_du_encoders),
+};
+
+static const struct resource du_resources[] __initconst = {
+	DEFINE_RES_MEM(0xfeb00000, 0x70000),
+	DEFINE_RES_MEM_NAMED(0xfeb90000, 0x1c, "lvds.0"),
+	DEFINE_RES_MEM_NAMED(0xfeb94000, 0x1c, "lvds.1"),
+	DEFINE_RES_IRQ(gic_spi(256)),
+	DEFINE_RES_IRQ(gic_spi(268)),
+	DEFINE_RES_IRQ(gic_spi(269)),
+};
+
+static void __init lager_add_du_device(void)
+{
+	struct platform_device_info info = {
+		.name = "rcar-du-r8a7790",
+		.id = -1,
+		.res = du_resources,
+		.num_res = ARRAY_SIZE(du_resources),
+		.data = &du_resources,
+		.size_data = sizeof(du_resources),
+		.dma_mask = DMA_BIT_MASK(32),
+	};
+
+	platform_device_register_full(&info);
+}
+
 /* LEDS */
 static struct gpio_led lager_leds[] = {
 	{
@@ -106,6 +163,13 @@ static struct resource ether_resources[] __initdata = {
 };
 
 static const struct pinctrl_map lager_pinctrl_map[] = {
+	/* DU (CN10: ARGB0, CN13: LVDS) */
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7790", "pfc-r8a7790",
+				  "du_rgb666", "du"),
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7790", "pfc-r8a7790",
+				  "du_sync_1", "du"),
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar-du-r8a7790", "pfc-r8a7790",
+				  "du_clk_out_0", "du"),
 	/* SCIF0 (CN19: DEBUG SERIAL0) */
 	PIN_MAP_MUX_GROUP_DEFAULT("sh-sci.6", "pfc-r8a7790",
 				  "scif0_data", "scif0"),
@@ -153,6 +217,8 @@ static void __init lager_add_standard_devices(void)
 					  ether_resources,
 					  ARRAY_SIZE(ether_resources),
 					  &ether_pdata, sizeof(ether_pdata));
+
+	lager_add_du_device();
 }
 
 static const char *lager_boards_compat_dt[] __initdata = {
-- 
cgit 


From 8b98126d2ce701c7367deee60739904e17864523 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 1 Aug 2013 09:41:20 +0200
Subject: ARM: shmobile: ape6evm: update MMC0, SDHI0 and SDHI1 with correct
 regulators

Currently a dummy fixed always-on regulator is used for all 3 SD/MMC
interfaces on ape6evm. This patch updates the board to use correct supplies
for MMC0, SDHI0 and SDHI1 VDD. SDHI0 VccQ supply regulator should be
implemented in a separate patch.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-ape6evm.c | 54 +++++++++++++++++++++++++++++-----
 1 file changed, 46 insertions(+), 8 deletions(-)

diff --git a/arch/arm/mach-shmobile/board-ape6evm.c b/arch/arm/mach-shmobile/board-ape6evm.c
index 24b87eea9da3..02be420ebd1e 100644
--- a/arch/arm/mach-shmobile/board-ape6evm.c
+++ b/arch/arm/mach-shmobile/board-ape6evm.c
@@ -113,16 +113,49 @@ static const struct smsc911x_platform_config lan9220_data __initconst = {
 };
 
 /*
- * On APE6EVM power is supplied to MMCIF by a tps80032 regulator. For now we
- * model a VDD supply to MMCIF, using a fixed 3.3V regulator. Also use the
- * static power supply for SDHI0 and SDHI1, whereas SDHI0's VccQ is also
- * supplied by the same tps80032 regulator and thus can also be adjusted
- * dynamically.
+ * MMC0 power supplies:
+ * Both Vcc and VccQ to eMMC on APE6EVM are supplied by a tps80032 voltage
+ * regulator. Until support for it is added to this file we simulate the
+ * Vcc supply by a fixed always-on regulator
  */
-static struct regulator_consumer_supply fixed3v3_power_consumers[] =
+static struct regulator_consumer_supply vcc_mmc0_consumers[] =
 {
 	REGULATOR_SUPPLY("vmmc", "sh_mmcif.0"),
+};
+
+/*
+ * SDHI0 power supplies:
+ * Vcc to SDHI0 on APE6EVM is supplied by a GPIO-switchable regulator. VccQ is
+ * provided by the same tps80032 regulator as both MMC0 voltages - see comment
+ * above
+ */
+static struct regulator_consumer_supply vcc_sdhi0_consumers[] =
+{
 	REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.0"),
+};
+
+static struct regulator_init_data vcc_sdhi0_init_data = {
+	.constraints = {
+		.valid_ops_mask = REGULATOR_CHANGE_STATUS,
+	},
+	.num_consumer_supplies  = ARRAY_SIZE(vcc_sdhi0_consumers),
+	.consumer_supplies      = vcc_sdhi0_consumers,
+};
+
+static const struct fixed_voltage_config vcc_sdhi0_info __initconst = {
+	.supply_name = "SDHI0 Vcc",
+	.microvolts = 3300000,
+	.gpio = 76,
+	.enable_high = 1,
+	.init_data = &vcc_sdhi0_init_data,
+};
+
+/*
+ * SDHI1 power supplies:
+ * Vcc and VccQ to SDHI1 on APE6EVM are both fixed at 3.3V
+ */
+static struct regulator_consumer_supply vcc_sdhi1_consumers[] =
+{
 	REGULATOR_SUPPLY("vmmc", "sh_mobile_sdhi.1"),
 };
 
@@ -215,14 +248,19 @@ static void __init ape6evm_add_standard_devices(void)
 	platform_device_register_resndata(&platform_bus, "smsc911x", -1,
 					  lan9220_res, ARRAY_SIZE(lan9220_res),
 					  &lan9220_data, sizeof(lan9220_data));
-	regulator_register_always_on(1, "fixed-3.3V", fixed3v3_power_consumers,
-				     ARRAY_SIZE(fixed3v3_power_consumers), 3300000);
+
+	regulator_register_always_on(1, "MMC0 Vcc", vcc_mmc0_consumers,
+				     ARRAY_SIZE(vcc_mmc0_consumers), 2800000);
 	platform_device_register_resndata(&platform_bus, "sh_mmcif", 0,
 					  mmcif0_resources, ARRAY_SIZE(mmcif0_resources),
 					  &mmcif0_pdata, sizeof(mmcif0_pdata));
+	platform_device_register_data(&platform_bus, "reg-fixed-voltage", 2,
+				      &vcc_sdhi0_info, sizeof(vcc_sdhi0_info));
 	platform_device_register_resndata(&platform_bus, "sh_mobile_sdhi", 0,
 					  sdhi0_resources, ARRAY_SIZE(sdhi0_resources),
 					  &sdhi0_pdata, sizeof(sdhi0_pdata));
+	regulator_register_always_on(3, "SDHI1 Vcc", vcc_sdhi1_consumers,
+				     ARRAY_SIZE(vcc_sdhi1_consumers), 3300000);
 	platform_device_register_resndata(&platform_bus, "sh_mobile_sdhi", 1,
 					  sdhi1_resources, ARRAY_SIZE(sdhi1_resources),
 					  &sdhi1_pdata, sizeof(sdhi1_pdata));
-- 
cgit 


From 37bf8103c51a1508d6323de19a7ae1c13c3ed3f5 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Thu, 22 Aug 2013 17:55:08 +0200
Subject: ARM: shmobile: lager: Fix Display Unit platform data

The DU device erroneously receives the DU resources array as platform
data instead of the DU platform data structure. Fix it.

This problem was introduced by f631fa0 ("ARM: shmobile: lager: Add Display
Unit support").

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-lager.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index caec99e332ef..9fbbf23244a8 100644
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -87,8 +87,8 @@ static void __init lager_add_du_device(void)
 		.id = -1,
 		.res = du_resources,
 		.num_res = ARRAY_SIZE(du_resources),
-		.data = &du_resources,
-		.size_data = sizeof(du_resources),
+		.data = &lager_du_pdata,
+		.size_data = sizeof(lager_du_pdata),
 		.dma_mask = DMA_BIT_MASK(32),
 	};
 
-- 
cgit 


From 71d7472f63385f4f6fb7c8548450b2e4665dc542 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 26 Aug 2013 01:52:23 -0700
Subject: ARM: shmobile: bockw: enable global use of FPGA

This patch enables global use of FPGA,
since it will be used from many devices.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-bockw.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/arch/arm/mach-shmobile/board-bockw.c b/arch/arm/mach-shmobile/board-bockw.c
index 6b9faf3908f7..b998c6b2a270 100644
--- a/arch/arm/mach-shmobile/board-bockw.c
+++ b/arch/arm/mach-shmobile/board-bockw.c
@@ -38,6 +38,10 @@
 #include <mach/r8a7778.h>
 #include <asm/mach/arch.h>
 
+#define FPGA	0x18200000
+#define IRQ0MR	0x30
+static void __iomem *fpga;
+
 /*
  *	CN9(Upper side) SCIF/RCAN selection
  *
@@ -224,8 +228,6 @@ static const struct pinctrl_map bockw_pinctrl_map[] = {
 				  "vin1_data8", "vin1"),
 };
 
-#define FPGA	0x18200000
-#define IRQ0MR	0x30
 #define PFC	0xfffc0000
 #define PUPR4	0x110
 static void __init bockw_init(void)
@@ -269,8 +271,8 @@ static void __init bockw_init(void)
 
 
 	/* for SMSC */
-	base = ioremap_nocache(FPGA, SZ_1M);
-	if (base) {
+	fpga = ioremap_nocache(FPGA, SZ_1M);
+	if (fpga) {
 		/*
 		 * CAUTION
 		 *
@@ -278,10 +280,9 @@ static void __init bockw_init(void)
 		 * it should be cared in the future
 		 * Now, it is assuming IRQ0 was used only from SMSC.
 		 */
-		u16 val = ioread16(base + IRQ0MR);
+		u16 val = ioread16(fpga + IRQ0MR);
 		val &= ~(1 << 4); /* enable SMSC911x */
-		iowrite16(val, base + IRQ0MR);
-		iounmap(base);
+		iowrite16(val, fpga + IRQ0MR);
 
 		regulator_register_fixed(0, dummy_supplies,
 					 ARRAY_SIZE(dummy_supplies));
-- 
cgit 


From 86bf043897a61bc62a5b1f8fee9fc7681f330f90 Mon Sep 17 00:00:00 2001
From: Hanjun Guo <hanjun.guo@linaro.org>
Date: Sun, 29 Sep 2013 13:32:01 +0800
Subject: Video / hecubafb: Use module_platform_driver() to simplify code

Convert to module_platform_driver() to simplify code.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/hecubafb.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/video/hecubafb.c b/drivers/video/hecubafb.c
index 59d23181fdb0..702b599dc3d6 100644
--- a/drivers/video/hecubafb.c
+++ b/drivers/video/hecubafb.c
@@ -305,19 +305,7 @@ static struct platform_driver hecubafb_driver = {
 		.name	= "hecubafb",
 	},
 };
-
-static int __init hecubafb_init(void)
-{
-	return platform_driver_register(&hecubafb_driver);
-}
-
-static void __exit hecubafb_exit(void)
-{
-	platform_driver_unregister(&hecubafb_driver);
-}
-
-module_init(hecubafb_init);
-module_exit(hecubafb_exit);
+module_platform_driver(hecubafb_driver);
 
 MODULE_DESCRIPTION("fbdev driver for Hecuba/Apollo controller");
 MODULE_AUTHOR("Jaya Kumar");
-- 
cgit 


From 688e6e22cda00fb145daf21c9fbc3b5a31f7ae31 Mon Sep 17 00:00:00 2001
From: Hanjun Guo <hanjun.guo@linaro.org>
Date: Sun, 29 Sep 2013 13:32:02 +0800
Subject: Video / bfin-t350mcqb-fb: Use module_platform_driver() to simplify
 code

Convert to module_platform_driver() to simplify code.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/bfin-t350mcqb-fb.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/video/bfin-t350mcqb-fb.c b/drivers/video/bfin-t350mcqb-fb.c
index 48c0c4e38a62..b5cf1307a3d9 100644
--- a/drivers/video/bfin-t350mcqb-fb.c
+++ b/drivers/video/bfin-t350mcqb-fb.c
@@ -664,19 +664,7 @@ static struct platform_driver bfin_t350mcqb_driver = {
 		   .owner = THIS_MODULE,
 		   },
 };
-
-static int __init bfin_t350mcqb_driver_init(void)
-{
-	return platform_driver_register(&bfin_t350mcqb_driver);
-}
-
-static void __exit bfin_t350mcqb_driver_cleanup(void)
-{
-	platform_driver_unregister(&bfin_t350mcqb_driver);
-}
+module_platform_driver(bfin_t350mcqb_driver);
 
 MODULE_DESCRIPTION("Blackfin TFT LCD Driver");
 MODULE_LICENSE("GPL");
-
-module_init(bfin_t350mcqb_driver_init);
-module_exit(bfin_t350mcqb_driver_cleanup);
-- 
cgit 


From ae6b639dd898e3446456e5c150517ae79bb6399a Mon Sep 17 00:00:00 2001
From: Hanjun Guo <hanjun.guo@linaro.org>
Date: Sun, 29 Sep 2013 13:32:03 +0800
Subject: Video / metronomefb: Use module_platform_driver() to simplify code

Convert to module_platform_driver() to simplify code.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/metronomefb.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/video/metronomefb.c b/drivers/video/metronomefb.c
index f30150d71be9..2d7dd8ea43f6 100644
--- a/drivers/video/metronomefb.c
+++ b/drivers/video/metronomefb.c
@@ -769,23 +769,11 @@ static struct platform_driver metronomefb_driver = {
 		.name	= "metronomefb",
 	},
 };
-
-static int __init metronomefb_init(void)
-{
-	return platform_driver_register(&metronomefb_driver);
-}
-
-static void __exit metronomefb_exit(void)
-{
-	platform_driver_unregister(&metronomefb_driver);
-}
+module_platform_driver(metronomefb_driver);
 
 module_param(user_wfm_size, uint, 0);
 MODULE_PARM_DESC(user_wfm_size, "Set custom waveform size");
 
-module_init(metronomefb_init);
-module_exit(metronomefb_exit);
-
 MODULE_DESCRIPTION("fbdev driver for Metronome controller");
 MODULE_AUTHOR("Jaya Kumar");
 MODULE_LICENSE("GPL");
-- 
cgit 


From 5fc89379dae86ae7318acd00b918b7ba36fc322a Mon Sep 17 00:00:00 2001
From: Hanjun Guo <hanjun.guo@linaro.org>
Date: Sun, 29 Sep 2013 13:32:04 +0800
Subject: Video / jz4740_fb: Use module_platform_driver() to simplify code

Convert to module_platform_driver() to simplify code.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/jz4740_fb.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/video/jz4740_fb.c b/drivers/video/jz4740_fb.c
index 3f99dcb28b09..87790e9644d0 100644
--- a/drivers/video/jz4740_fb.c
+++ b/drivers/video/jz4740_fb.c
@@ -798,18 +798,7 @@ static struct platform_driver jzfb_driver = {
 		.pm = JZFB_PM_OPS,
 	},
 };
-
-static int __init jzfb_init(void)
-{
-	return platform_driver_register(&jzfb_driver);
-}
-module_init(jzfb_init);
-
-static void __exit jzfb_exit(void)
-{
-	platform_driver_unregister(&jzfb_driver);
-}
-module_exit(jzfb_exit);
+module_platform_driver(jzfb_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
-- 
cgit 


From 44f544f752eb90781ef74010c2566c0dde2914ad Mon Sep 17 00:00:00 2001
From: Hanjun Guo <hanjun.guo@linaro.org>
Date: Sun, 29 Sep 2013 13:32:05 +0800
Subject: Video / da8xx-fb: Use module_platform_driver() to simplify code

Convert to module_platform_driver() to simplify code.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/da8xx-fb.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c
index 0670c85bef44..90f8a2f04d7a 100644
--- a/drivers/video/da8xx-fb.c
+++ b/drivers/video/da8xx-fb.c
@@ -1663,19 +1663,7 @@ static struct platform_driver da8xx_fb_driver = {
 		   .owner = THIS_MODULE,
 		   },
 };
-
-static int __init da8xx_fb_init(void)
-{
-	return platform_driver_register(&da8xx_fb_driver);
-}
-
-static void __exit da8xx_fb_cleanup(void)
-{
-	platform_driver_unregister(&da8xx_fb_driver);
-}
-
-module_init(da8xx_fb_init);
-module_exit(da8xx_fb_cleanup);
+module_platform_driver(da8xx_fb_driver);
 
 MODULE_DESCRIPTION("Framebuffer driver for TI da8xx/omap-l1xx");
 MODULE_AUTHOR("Texas Instruments");
-- 
cgit 


From be75b5b53528fe8a9d31bba3c1cdc5eec2769114 Mon Sep 17 00:00:00 2001
From: Hanjun Guo <hanjun.guo@linaro.org>
Date: Sun, 29 Sep 2013 13:32:06 +0800
Subject: Video / cobalt_lcdfb: Use module_platform_driver() to simplify code

Convert to module_platform_driver() to simplify code.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/cobalt_lcdfb.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/video/cobalt_lcdfb.c b/drivers/video/cobalt_lcdfb.c
index a9031498e10c..a7b0ab62b97b 100644
--- a/drivers/video/cobalt_lcdfb.c
+++ b/drivers/video/cobalt_lcdfb.c
@@ -395,19 +395,7 @@ static struct platform_driver cobalt_lcdfb_driver = {
 		.owner	= THIS_MODULE,
 	},
 };
-
-static int __init cobalt_lcdfb_init(void)
-{
-	return platform_driver_register(&cobalt_lcdfb_driver);
-}
-
-static void __exit cobalt_lcdfb_exit(void)
-{
-	platform_driver_unregister(&cobalt_lcdfb_driver);
-}
-
-module_init(cobalt_lcdfb_init);
-module_exit(cobalt_lcdfb_exit);
+module_platform_driver(cobalt_lcdfb_driver);
 
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Yoichi Yuasa");
-- 
cgit 


From 46fc95030de0b4af6e5b52048b3a45ee0622d501 Mon Sep 17 00:00:00 2001
From: Hanjun Guo <hanjun.guo@linaro.org>
Date: Sun, 29 Sep 2013 13:32:07 +0800
Subject: Video / broadsheetfb: Use module_platform_driver() to simplify code

Convert to module_platform_driver() to simplify code.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/broadsheetfb.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/video/broadsheetfb.c b/drivers/video/broadsheetfb.c
index b09701c79432..393d5a03b34e 100644
--- a/drivers/video/broadsheetfb.c
+++ b/drivers/video/broadsheetfb.c
@@ -1217,19 +1217,7 @@ static struct platform_driver broadsheetfb_driver = {
 		.name	= "broadsheetfb",
 	},
 };
-
-static int __init broadsheetfb_init(void)
-{
-	return platform_driver_register(&broadsheetfb_driver);
-}
-
-static void __exit broadsheetfb_exit(void)
-{
-	platform_driver_unregister(&broadsheetfb_driver);
-}
-
-module_init(broadsheetfb_init);
-module_exit(broadsheetfb_exit);
+module_platform_driver(broadsheetfb_driver);
 
 MODULE_DESCRIPTION("fbdev driver for Broadsheet controller");
 MODULE_AUTHOR("Jaya Kumar");
-- 
cgit 


From fbc0156c8e7b752dd1cd6fedef0d53800ebbda75 Mon Sep 17 00:00:00 2001
From: Hanjun Guo <hanjun.guo@linaro.org>
Date: Sun, 29 Sep 2013 13:32:08 +0800
Subject: Video / bf54x-lq043fb: Use module_platform_driver() to simplify code

Convert to module_platform_driver() to simplify code.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/bf54x-lq043fb.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/video/bf54x-lq043fb.c b/drivers/video/bf54x-lq043fb.c
index 87f288bfc58c..42b8f9d11018 100644
--- a/drivers/video/bf54x-lq043fb.c
+++ b/drivers/video/bf54x-lq043fb.c
@@ -761,19 +761,7 @@ static struct platform_driver bfin_bf54x_driver = {
 		   .owner = THIS_MODULE,
 		   },
 };
-
-static int __init bfin_bf54x_driver_init(void)
-{
-	return platform_driver_register(&bfin_bf54x_driver);
-}
-
-static void __exit bfin_bf54x_driver_cleanup(void)
-{
-	platform_driver_unregister(&bfin_bf54x_driver);
-}
+module_platform_driver(bfin_bf54x_driver);
 
 MODULE_DESCRIPTION("Blackfin BF54x TFT LCD Driver");
 MODULE_LICENSE("GPL");
-
-module_init(bfin_bf54x_driver_init);
-module_exit(bfin_bf54x_driver_cleanup);
-- 
cgit 


From d07b319143bd247410fbb5e1859a4928af7a42ce Mon Sep 17 00:00:00 2001
From: Hanjun Guo <hanjun.guo@linaro.org>
Date: Sun, 29 Sep 2013 13:32:09 +0800
Subject: Video / au1200fb: Use module_platform_driver() to simplify code

Convert to module_platform_driver() to simplify code.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/au1200fb.c | 16 +---------------
 1 file changed, 1 insertion(+), 15 deletions(-)

diff --git a/drivers/video/au1200fb.c b/drivers/video/au1200fb.c
index 301224ecc950..7a6b4c6f863b 100644
--- a/drivers/video/au1200fb.c
+++ b/drivers/video/au1200fb.c
@@ -1874,21 +1874,7 @@ static struct platform_driver au1200fb_driver = {
 	.probe		= au1200fb_drv_probe,
 	.remove		= au1200fb_drv_remove,
 };
-
-/*-------------------------------------------------------------------------*/
-
-static int __init au1200fb_init(void)
-{
-	return platform_driver_register(&au1200fb_driver);
-}
-
-static void __exit au1200fb_cleanup(void)
-{
-	platform_driver_unregister(&au1200fb_driver);
-}
-
-module_init(au1200fb_init);
-module_exit(au1200fb_cleanup);
+module_platform_driver(au1200fb_driver);
 
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-- 
cgit 


From 55be31089212898537c13fcf7ddb689f04868b4b Mon Sep 17 00:00:00 2001
From: Hanjun Guo <hanjun.guo@linaro.org>
Date: Sun, 29 Sep 2013 13:32:10 +0800
Subject: Video / au1100fb: Use module_platform_driver() to simplify code

Convert to module_platform_driver() to simplify code.

Signed-off-by: Hanjun Guo <hanjun.guo@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/au1100fb.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/video/au1100fb.c b/drivers/video/au1100fb.c
index 248abd50ca25..b95bbfc30997 100644
--- a/drivers/video/au1100fb.c
+++ b/drivers/video/au1100fb.c
@@ -660,19 +660,7 @@ static struct platform_driver au1100fb_driver = {
 	.suspend	= au1100fb_drv_suspend,
         .resume		= au1100fb_drv_resume,
 };
-
-static int __init au1100fb_load(void)
-{
-	return platform_driver_register(&au1100fb_driver);
-}
-
-static void __exit au1100fb_unload(void)
-{
-	platform_driver_unregister(&au1100fb_driver);
-}
-
-module_init(au1100fb_load);
-module_exit(au1100fb_unload);
+module_platform_driver(au1100fb_driver);
 
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL");
-- 
cgit 


From 688e6a6df880ee70e76f6ec1991dd0f186c25329 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 26 Aug 2013 01:52:35 -0700
Subject: ARM: shmobile: bockw: add R-Car sound support (PIO)

This patch enables R-Car sound,
AK4643 (CN19) and AK4554 (CN20/CN21) codec chip
on Bock-W.

But, it supports PIO transfer only at this point.
User can check sound settings (Dip-switch/PFC etc)
via this patch, but will get under/over flow error
when playback/capture.
Because PIO transfer via SSI will be interrupted
"sampling rate" times per 1 second.

DMA transfer will be supported when HPB-DMAC was
enabled on r8a7778.

You will notice strange ALSA sound card HW
numbering on Bock-W board.
This came from AK4554 strange format on playback/capture.
The format on playback/capture is same on "normal" codec chip,
but AK4554 was different.
Because of that, AK4554 playback/capture are
registered as a different sound card.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
[horms+renesas@verge.net.au: squashed cleanup of SND_SOC_xxx in
 Kconfig by Kuninori Morimoto]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/Kconfig       |   2 +
 arch/arm/mach-shmobile/board-bockw.c | 274 ++++++++++++++++++++++++++++++++++-
 2 files changed, 275 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index b45240512ce0..d01e4276b889 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -168,6 +168,8 @@ config MACH_BOCKW
 	select RENESAS_INTC_IRQPIN
 	select REGULATOR_FIXED_VOLTAGE if REGULATOR
 	select USE_OF
+	select SND_SOC_AK4554 if SND_SIMPLE_CARD
+	select SND_SOC_AK4642 if SND_SIMPLE_CARD
 
 config MACH_BOCKW_REFERENCE
 	bool "BOCK-W  - Reference Device Tree Implementation"
diff --git a/arch/arm/mach-shmobile/board-bockw.c b/arch/arm/mach-shmobile/board-bockw.c
index b998c6b2a270..7ad868d0a047 100644
--- a/arch/arm/mach-shmobile/board-bockw.c
+++ b/arch/arm/mach-shmobile/board-bockw.c
@@ -37,9 +37,12 @@
 #include <mach/irqs.h>
 #include <mach/r8a7778.h>
 #include <asm/mach/arch.h>
+#include <sound/rcar_snd.h>
+#include <sound/simple_card.h>
 
 #define FPGA	0x18200000
 #define IRQ0MR	0x30
+#define COMCTLR	0x101c
 static void __iomem *fpga;
 
 /*
@@ -67,6 +70,35 @@ static void __iomem *fpga;
  * SW19	(MMC)	1 pin
  */
 
+/*
+ *	SSI settings
+ *
+ * SW45: 1-4 side	(SSI5 out, ROUT/LOUT CN19 Mid)
+ * SW46: 1101		(SSI6 Recorde)
+ * SW47: 1110		(SSI5 Playback)
+ * SW48: 11		(Recorde power)
+ * SW49: 1		(SSI slave mode)
+ * SW50: 1111		(SSI7, SSI8)
+ * SW51: 1111		(SSI3, SSI4)
+ * SW54: 1pin		(ak4554 FPGA control)
+ * SW55: 1		(CLKB is 24.5760MHz)
+ * SW60: 1pin		(ak4554 FPGA control)
+ * SW61: 3pin		(use X11 clock)
+ * SW78: 3-6		(ak4642 connects I2C0)
+ *
+ * You can use sound as
+ *
+ * hw0: CN19: SSI56-AK4643
+ * hw1: CN21: SSI3-AK4554(playback)
+ * hw2: CN21: SSI4-AK4554(capture)
+ * hw3: CN20: SSI7-AK4554(playback)
+ * hw4: CN20: SSI8-AK4554(capture)
+ *
+ * this command is required when playback on hw0.
+ *
+ * # amixer set "LINEOUT Mixer DACL" on
+ */
+
 /* Dummy supplies, where voltage doesn't matter */
 static struct regulator_consumer_supply dummy_supplies[] = {
 	REGULATOR_SUPPLY("vddvario", "smsc911x"),
@@ -122,7 +154,9 @@ static struct sh_eth_plat_data ether_platform_data __initdata = {
 static struct i2c_board_info i2c0_devices[] = {
 	{
 		I2C_BOARD_INFO("rx8581", 0x51),
-	},
+	}, {
+		I2C_BOARD_INFO("ak4643", 0x12),
+	}
 };
 
 /* HSPI*/
@@ -185,7 +219,213 @@ static struct soc_camera_link iclink##idx##_ml86v7667 __initdata = {	\
 BOCKW_CAMERA(0);
 BOCKW_CAMERA(1);
 
+/* Sound */
+static struct resource rsnd_resources[] __initdata = {
+	[RSND_GEN1_SRU] = DEFINE_RES_MEM(0xffd90000, 0x1000),
+	[RSND_GEN1_SSI] = DEFINE_RES_MEM(0xffd91000, 0x1240),
+	[RSND_GEN1_ADG] = DEFINE_RES_MEM(0xfffe0000, 0x24),
+};
+
+static struct rsnd_ssi_platform_info rsnd_ssi[] = {
+	RSND_SSI_UNUSED, /* SSI 0 */
+	RSND_SSI_UNUSED, /* SSI 1 */
+	RSND_SSI_UNUSED, /* SSI 2 */
+	RSND_SSI_SET(1, 0, gic_iid(0x85), RSND_SSI_PLAY),
+	RSND_SSI_SET(2, 0, gic_iid(0x85), RSND_SSI_CLK_PIN_SHARE | RSND_SSI_CLK_FROM_ADG),
+	RSND_SSI_SET(0, 0, gic_iid(0x86), RSND_SSI_PLAY),
+	RSND_SSI_SET(0, 0, gic_iid(0x86), 0),
+	RSND_SSI_SET(3, 0, gic_iid(0x86), RSND_SSI_PLAY),
+	RSND_SSI_SET(4, 0, gic_iid(0x86), RSND_SSI_CLK_PIN_SHARE | RSND_SSI_CLK_FROM_ADG),
+};
+
+static struct rsnd_scu_platform_info rsnd_scu[9] = {
+	/* no member at this point */
+};
+
+enum {
+	AK4554_34 = 0,
+	AK4643_56,
+	AK4554_78,
+	SOUND_MAX,
+};
+
+static int rsnd_codec_power(int id, int enable)
+{
+	static int sound_user[SOUND_MAX] = {0, 0, 0};
+	int *usr = NULL;
+	u32 bit;
+
+	switch (id) {
+	case 3:
+	case 4:
+		usr = sound_user + AK4554_34;
+		bit = (1 << 10);
+		break;
+	case 5:
+	case 6:
+		usr = sound_user + AK4643_56;
+		bit = (1 << 6);
+		break;
+	case 7:
+	case 8:
+		usr = sound_user + AK4554_78;
+		bit = (1 << 7);
+		break;
+	}
+
+	if (!usr)
+		return -EIO;
+
+	if (enable) {
+		if (*usr == 0) {
+			u32 val = ioread16(fpga + COMCTLR);
+			val &= ~bit;
+			iowrite16(val, fpga + COMCTLR);
+		}
+
+		(*usr)++;
+	} else {
+		if (*usr == 0)
+			return 0;
+
+		(*usr)--;
+
+		if (*usr == 0) {
+			u32 val = ioread16(fpga + COMCTLR);
+			val |= bit;
+			iowrite16(val, fpga + COMCTLR);
+		}
+	}
+
+	return 0;
+}
+
+static int rsnd_start(int id)
+{
+	return rsnd_codec_power(id, 1);
+}
+
+static int rsnd_stop(int id)
+{
+	return rsnd_codec_power(id, 0);
+}
+
+static struct rcar_snd_info rsnd_info = {
+	.flags		= RSND_GEN1,
+	.ssi_info	= rsnd_ssi,
+	.ssi_info_nr	= ARRAY_SIZE(rsnd_ssi),
+	.scu_info	= rsnd_scu,
+	.scu_info_nr	= ARRAY_SIZE(rsnd_scu),
+	.start		= rsnd_start,
+	.stop		= rsnd_stop,
+};
+
+static struct asoc_simple_card_info rsnd_card_info[] = {
+	/* SSI5, SSI6 */
+	{
+		.name		= "AK4643",
+		.card		= "SSI56-AK4643",
+		.codec		= "ak4642-codec.0-0012",
+		.platform	= "rcar_sound",
+		.daifmt		= SND_SOC_DAIFMT_LEFT_J,
+		.cpu_dai = {
+			.name	= "rsnd-dai.0",
+			.fmt	= SND_SOC_DAIFMT_CBS_CFS,
+		},
+		.codec_dai = {
+			.name	= "ak4642-hifi",
+			.fmt	= SND_SOC_DAIFMT_CBM_CFM,
+			.sysclk	= 11289600,
+		},
+	},
+	/* SSI3 */
+	{
+		.name		= "AK4554",
+		.card		= "SSI3-AK4554(playback)",
+		.codec		= "ak4554-adc-dac.0",
+		.platform	= "rcar_sound",
+		.cpu_dai = {
+			.name	= "rsnd-dai.1",
+			.fmt	= SND_SOC_DAIFMT_CBM_CFM |
+				  SND_SOC_DAIFMT_RIGHT_J,
+		},
+		.codec_dai = {
+			.name	= "ak4554-hifi",
+		},
+	},
+	/* SSI4 */
+	{
+		.name		= "AK4554",
+		.card		= "SSI4-AK4554(capture)",
+		.codec		= "ak4554-adc-dac.0",
+		.platform	= "rcar_sound",
+		.cpu_dai = {
+			.name	= "rsnd-dai.2",
+			.fmt	= SND_SOC_DAIFMT_CBM_CFM |
+				  SND_SOC_DAIFMT_LEFT_J,
+		},
+		.codec_dai = {
+			.name	= "ak4554-hifi",
+		},
+	},
+	/* SSI7 */
+	{
+		.name		= "AK4554",
+		.card		= "SSI7-AK4554(playback)",
+		.codec		= "ak4554-adc-dac.1",
+		.platform	= "rcar_sound",
+		.cpu_dai = {
+			.name	= "rsnd-dai.3",
+			.fmt	= SND_SOC_DAIFMT_CBM_CFM |
+				  SND_SOC_DAIFMT_RIGHT_J,
+		},
+		.codec_dai = {
+			.name	= "ak4554-hifi",
+		},
+	},
+	/* SSI8 */
+	{
+		.name		= "AK4554",
+		.card		= "SSI8-AK4554(capture)",
+		.codec		= "ak4554-adc-dac.1",
+		.platform	= "rcar_sound",
+		.cpu_dai = {
+			.name	= "rsnd-dai.4",
+			.fmt	= SND_SOC_DAIFMT_CBM_CFM |
+				  SND_SOC_DAIFMT_LEFT_J,
+		},
+		.codec_dai = {
+			.name	= "ak4554-hifi",
+		},
+	}
+};
+
 static const struct pinctrl_map bockw_pinctrl_map[] = {
+	/* AUDIO */
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar_sound", "pfc-r8a7778",
+				  "audio_clk_a", "audio_clk"),
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar_sound", "pfc-r8a7778",
+				  "audio_clk_b", "audio_clk"),
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar_sound", "pfc-r8a7778",
+				  "ssi34_ctrl", "ssi"),
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar_sound", "pfc-r8a7778",
+				  "ssi3_data", "ssi"),
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar_sound", "pfc-r8a7778",
+				  "ssi4_data", "ssi"),
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar_sound", "pfc-r8a7778",
+				  "ssi5_ctrl", "ssi"),
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar_sound", "pfc-r8a7778",
+				  "ssi5_data", "ssi"),
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar_sound", "pfc-r8a7778",
+				  "ssi6_ctrl", "ssi"),
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar_sound", "pfc-r8a7778",
+				  "ssi6_data", "ssi"),
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar_sound", "pfc-r8a7778",
+				  "ssi78_ctrl", "ssi"),
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar_sound", "pfc-r8a7778",
+				  "ssi7_data", "ssi"),
+	PIN_MAP_MUX_GROUP_DEFAULT("rcar_sound", "pfc-r8a7778",
+				  "ssi8_data", "ssi"),
 	/* Ether */
 	PIN_MAP_MUX_GROUP_DEFAULT("r8a777x-ether", "pfc-r8a7778",
 				  "ether_rmii", "ether"),
@@ -233,6 +473,8 @@ static const struct pinctrl_map bockw_pinctrl_map[] = {
 static void __init bockw_init(void)
 {
 	void __iomem *base;
+	struct clk *clk;
+	int i;
 
 	r8a7778_clock_init();
 	r8a7778_init_irq_extpin(1);
@@ -309,6 +551,36 @@ static void __init bockw_init(void)
 			sdhi0_resources, ARRAY_SIZE(sdhi0_resources),
 			&sdhi0_info, sizeof(struct sh_mobile_sdhi_info));
 	}
+
+	/* for Audio */
+	clk = clk_get(NULL, "audio_clk_b");
+	clk_set_rate(clk, 24576000);
+	clk_put(clk);
+	rsnd_codec_power(5, 1); /* enable ak4642 */
+
+	platform_device_register_simple(
+		"ak4554-adc-dac", 0, NULL, 0);
+
+	platform_device_register_simple(
+		"ak4554-adc-dac", 1, NULL, 0);
+
+	platform_device_register_resndata(
+		&platform_bus, "rcar_sound", -1,
+		rsnd_resources, ARRAY_SIZE(rsnd_resources),
+		&rsnd_info, sizeof(rsnd_info));
+
+	for (i = 0; i < ARRAY_SIZE(rsnd_card_info); i++) {
+		struct platform_device_info cardinfo = {
+			.parent         = &platform_bus,
+			.name           = "asoc-simple-card",
+			.id             = i,
+			.data           = &rsnd_card_info[i],
+			.size_data      = sizeof(struct asoc_simple_card_info),
+			.dma_mask       = ~0,
+		};
+
+		platform_device_register_full(&cardinfo);
+	}
 }
 
 static const char *bockw_boards_compat_dt[] __initdata = {
-- 
cgit 


From 1f52c65975ba16cdba1830ba216776111197a3ee Mon Sep 17 00:00:00 2001
From: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Date: Wed, 4 Sep 2013 12:46:49 +0900
Subject: ARM: shmobile: Koelsch support

Koelsch base board support making use of 2 GiB of memory,
the r8a7791 SoC with the SCIF0 serial port and CA15 with
CMT timer.

Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Ryo Kataoka <ryo.kataoka.wt@renesas.com>
[damm@opensource.se: Forward ported to upstream, dropped not-yet-ready SMP/PFC]
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/Makefile             |  1 +
 arch/arm/boot/dts/r8a7791-koelsch.dts  | 32 +++++++++++++++++++++++++
 arch/arm/mach-shmobile/Kconfig         |  5 ++++
 arch/arm/mach-shmobile/Makefile        |  1 +
 arch/arm/mach-shmobile/Makefile.boot   |  1 +
 arch/arm/mach-shmobile/board-koelsch.c | 44 ++++++++++++++++++++++++++++++++++
 6 files changed, 84 insertions(+)
 create mode 100644 arch/arm/boot/dts/r8a7791-koelsch.dts
 create mode 100644 arch/arm/mach-shmobile/board-koelsch.c

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index cc0f1fb61753..3b1c462e8575 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -202,6 +202,7 @@ dtb-$(CONFIG_ARCH_SHMOBILE) += emev2-kzm9d.dtb \
 	r8a7740-armadillo800eva-reference.dtb \
 	r8a7779-marzen.dtb \
 	r8a7779-marzen-reference.dtb \
+	r8a7791-koelsch.dtb \
 	r8a7790-lager.dtb \
 	r8a7790-lager-reference.dtb \
 	sh73a0-kzm9g.dtb \
diff --git a/arch/arm/boot/dts/r8a7791-koelsch.dts b/arch/arm/boot/dts/r8a7791-koelsch.dts
new file mode 100644
index 000000000000..1ce5250ec278
--- /dev/null
+++ b/arch/arm/boot/dts/r8a7791-koelsch.dts
@@ -0,0 +1,32 @@
+/*
+ * Device Tree Source for the Koelsch board
+ *
+ * Copyright (C) 2013 Renesas Electronics Corporation
+ * Copyright (C) 2013 Renesas Solutions Corp.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/dts-v1/;
+/include/ "r8a7791.dtsi"
+
+/ {
+	model = "Koelsch";
+	compatible = "renesas,koelsch", "renesas,r8a7791";
+
+	chosen {
+		bootargs = "console=ttySC6,115200 ignore_loglevel rw root=/dev/nfs ip=dhcp";
+	};
+
+	memory@40000000 {
+		device_type = "memory";
+		reg = <0 0x40000000 0 0x80000000>;
+	};
+
+	lbsc {
+		#address-cells = <1>;
+		#size-cells = <1>;
+	};
+};
diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index d01e4276b889..eda285794961 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -221,6 +221,11 @@ config MACH_LAGER_REFERENCE
 
 	   This is intended to aid developers
 
+config MACH_KOELSCH
+	bool "Koelsch board"
+	depends on ARCH_R8A7791
+	select USE_OF
+
 config MACH_KZM9D
 	bool "KZM9D board"
 	depends on ARCH_EMEV2
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 228193cc9a38..e552e84b1fae 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -61,6 +61,7 @@ obj-$(CONFIG_MACH_LAGER)	+= board-lager.o
 obj-$(CONFIG_MACH_LAGER_REFERENCE)	+= board-lager-reference.o
 obj-$(CONFIG_MACH_ARMADILLO800EVA)	+= board-armadillo800eva.o
 obj-$(CONFIG_MACH_ARMADILLO800EVA_REFERENCE)	+= board-armadillo800eva-reference.o
+obj-$(CONFIG_MACH_KOELSCH)	+= board-koelsch.o
 obj-$(CONFIG_MACH_KZM9D)	+= board-kzm9d.o
 obj-$(CONFIG_MACH_KZM9D_REFERENCE)	+= board-kzm9d-reference.o
 obj-$(CONFIG_MACH_KZM9G)	+= board-kzm9g.o
diff --git a/arch/arm/mach-shmobile/Makefile.boot b/arch/arm/mach-shmobile/Makefile.boot
index 6a504fe7d86c..60e29e6c1126 100644
--- a/arch/arm/mach-shmobile/Makefile.boot
+++ b/arch/arm/mach-shmobile/Makefile.boot
@@ -6,6 +6,7 @@ loadaddr-$(CONFIG_MACH_ARMADILLO800EVA) += 0x40008000
 loadaddr-$(CONFIG_MACH_ARMADILLO800EVA_REFERENCE) += 0x40008000
 loadaddr-$(CONFIG_MACH_BOCKW) += 0x60008000
 loadaddr-$(CONFIG_MACH_BOCKW_REFERENCE) += 0x60008000
+loadaddr-$(CONFIG_MACH_KOELSCH) += 0x40008000
 loadaddr-$(CONFIG_MACH_KZM9D) += 0x40008000
 loadaddr-$(CONFIG_MACH_KZM9D_REFERENCE) += 0x40008000
 loadaddr-$(CONFIG_MACH_KZM9G) += 0x41008000
diff --git a/arch/arm/mach-shmobile/board-koelsch.c b/arch/arm/mach-shmobile/board-koelsch.c
new file mode 100644
index 000000000000..cc2d5e82b59a
--- /dev/null
+++ b/arch/arm/mach-shmobile/board-koelsch.c
@@ -0,0 +1,44 @@
+/*
+ * Koelsch board support
+ *
+ * Copyright (C) 2013  Renesas Electronics Corporation
+ * Copyright (C) 2013  Renesas Solutions Corp.
+ * Copyright (C) 2013  Magnus Damm
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <mach/common.h>
+#include <mach/r8a7791.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+static void __init koelsch_add_standard_devices(void)
+{
+	r8a7791_clock_init();
+	r8a7791_add_dt_devices();
+}
+
+static const char * const koelsch_boards_compat_dt[] __initconst = {
+	"renesas,koelsch",
+	NULL,
+};
+
+DT_MACHINE_START(KOELSCH_DT, "koelsch")
+	.init_early	= r8a7791_init_early,
+	.init_machine	= koelsch_add_standard_devices,
+	.dt_compat	= koelsch_boards_compat_dt,
+MACHINE_END
-- 
cgit 


From 81a0d9062d5c93490b215d2440bbd7deb3918707 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Sun, 4 Aug 2013 17:43:37 -0700
Subject: ARM: shmobile: bockw: add USB Function support

Bock-W USB1 (CN29) can be USB Host/Func by SW98/SW99 settings.
USB Func will be enabled if CONFIG_USB_RENESAS_USBHS_UDC[_MODULE]
was selected on this patch

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-bockw.c | 81 ++++++++++++++++++++++++++++++++++--
 1 file changed, 78 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-shmobile/board-bockw.c b/arch/arm/mach-shmobile/board-bockw.c
index 7ad868d0a047..330e84c14f8e 100644
--- a/arch/arm/mach-shmobile/board-bockw.c
+++ b/arch/arm/mach-shmobile/board-bockw.c
@@ -32,6 +32,7 @@
 #include <linux/smsc911x.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/flash.h>
+#include <linux/usb/renesas_usbhs.h>
 #include <media/soc_camera.h>
 #include <mach/common.h>
 #include <mach/irqs.h>
@@ -99,6 +100,16 @@ static void __iomem *fpga;
  * # amixer set "LINEOUT Mixer DACL" on
  */
 
+/*
+ * USB
+ *
+ * USB1 (CN29) can be Host/Function
+ *
+ *		Host	Func
+ * SW98		1	2
+ * SW99		1	3
+ */
+
 /* Dummy supplies, where voltage doesn't matter */
 static struct regulator_consumer_supply dummy_supplies[] = {
 	REGULATOR_SUPPLY("vddvario", "smsc911x"),
@@ -117,13 +128,71 @@ static struct resource smsc911x_resources[] __initdata = {
 	DEFINE_RES_IRQ(irq_pin(0)), /* IRQ 0 */
 };
 
+#if IS_ENABLED(CONFIG_USB_RENESAS_USBHS_UDC)
+/*
+ * When USB1 is Func
+ */
+static int usbhsf_get_id(struct platform_device *pdev)
+{
+	return USBHS_GADGET;
+}
+
+#define SUSPMODE	0x102
+static int usbhsf_power_ctrl(struct platform_device *pdev,
+			     void __iomem *base, int enable)
+{
+	enable = !!enable;
+
+	r8a7778_usb_phy_power(enable);
+
+	iowrite16(enable << 14, base + SUSPMODE);
+
+	return 0;
+}
+
+static struct resource usbhsf_resources[] __initdata = {
+	DEFINE_RES_MEM(0xffe60000, 0x110),
+	DEFINE_RES_IRQ(gic_iid(0x4f)),
+};
+
+static struct renesas_usbhs_platform_info usbhs_info __initdata = {
+	.platform_callback = {
+		.get_id		= usbhsf_get_id,
+		.power_ctrl	= usbhsf_power_ctrl,
+	},
+	.driver_param = {
+		.buswait_bwait	= 4,
+	},
+};
+
+#define USB_PHY_SETTING {.port1_func = 1, .ovc_pin[1].active_high = 1,}
+#define USB1_DEVICE	"renesas_usbhs"
+#define ADD_USB_FUNC_DEVICE_IF_POSSIBLE()			\
+	platform_device_register_resndata(			\
+		&platform_bus, "renesas_usbhs", -1,		\
+		usbhsf_resources,				\
+		ARRAY_SIZE(usbhsf_resources),			\
+		&usbhs_info, sizeof(struct renesas_usbhs_platform_info))
+
+#else
+/*
+ * When USB1 is Host
+ */
+#define USB_PHY_SETTING { }
+#define USB1_DEVICE	"ehci-platform"
+#define ADD_USB_FUNC_DEVICE_IF_POSSIBLE()
+
+#endif
+
 /* USB */
 static struct resource usb_phy_resources[] __initdata = {
 	DEFINE_RES_MEM(0xffe70800, 0x100),
 	DEFINE_RES_MEM(0xffe76000, 0x100),
 };
 
-static struct rcar_phy_platform_data usb_phy_platform_data __initdata;
+static struct rcar_phy_platform_data usb_phy_platform_data __initdata =
+	USB_PHY_SETTING;
+
 
 /* SDHI */
 static struct sh_mobile_sdhi_info sdhi0_info __initdata = {
@@ -445,7 +514,7 @@ static const struct pinctrl_map bockw_pinctrl_map[] = {
 	/* USB */
 	PIN_MAP_MUX_GROUP_DEFAULT("ehci-platform", "pfc-r8a7778",
 				  "usb0", "usb0"),
-	PIN_MAP_MUX_GROUP_DEFAULT("ehci-platform", "pfc-r8a7778",
+	PIN_MAP_MUX_GROUP_DEFAULT(USB1_DEVICE, "pfc-r8a7778",
 				  "usb1", "usb1"),
 	/* SDHI0 */
 	PIN_MAP_MUX_GROUP_DEFAULT("sh_mobile_sdhi.0", "pfc-r8a7778",
@@ -583,6 +652,12 @@ static void __init bockw_init(void)
 	}
 }
 
+static void __init bockw_init_late(void)
+{
+	r8a7778_init_late();
+	ADD_USB_FUNC_DEVICE_IF_POSSIBLE();
+}
+
 static const char *bockw_boards_compat_dt[] __initdata = {
 	"renesas,bockw",
 	NULL,
@@ -593,5 +668,5 @@ DT_MACHINE_START(BOCKW_DT, "bockw")
 	.init_irq	= r8a7778_init_irq_dt,
 	.init_machine	= bockw_init,
 	.dt_compat	= bockw_boards_compat_dt,
-	.init_late      = r8a7778_init_late,
+	.init_late      = bockw_init_late,
 MACHINE_END
-- 
cgit 


From a2eeabcceb3eb2646b0064b55b8ff0eb6f1ae13d Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Wed, 10 Jul 2013 21:21:16 +0200
Subject: ARM: shmobile: ape6evm: disable MMCIF Command Completion Signal

MMCIF on r8a73a4 doesn't support Command Completion Signal, a platform
parameter has to be added to disable it on ape6evm.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-ape6evm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-shmobile/board-ape6evm.c b/arch/arm/mach-shmobile/board-ape6evm.c
index 02be420ebd1e..0365d2e2e730 100644
--- a/arch/arm/mach-shmobile/board-ape6evm.c
+++ b/arch/arm/mach-shmobile/board-ape6evm.c
@@ -162,6 +162,7 @@ static struct regulator_consumer_supply vcc_sdhi1_consumers[] =
 /* MMCIF */
 static const struct sh_mmcif_plat_data mmcif0_pdata __initconst = {
 	.caps		= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
+	.ccs_unsupported = true,
 };
 
 static const struct resource mmcif0_resources[] __initconst = {
-- 
cgit 


From fbf3264c046a6cce4cefec6e069fc86c0175f7d3 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Wed, 10 Jul 2013 21:21:14 +0200
Subject: ARM: shmobile: armadillo800eva: disable MMCIF Command Completion
 Signal

MMCIF on r8a7740 doesn't support Command Completion Signal, a platform
parameter has to be added to disable it on armadillo800eva.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-armadillo800eva.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-shmobile/board-armadillo800eva.c b/arch/arm/mach-shmobile/board-armadillo800eva.c
index 5bd1479d3deb..fc8f9f85d86d 100644
--- a/arch/arm/mach-shmobile/board-armadillo800eva.c
+++ b/arch/arm/mach-shmobile/board-armadillo800eva.c
@@ -823,6 +823,7 @@ static struct sh_mmcif_plat_data sh_mmcif_plat = {
 	.caps		= MMC_CAP_4_BIT_DATA |
 			  MMC_CAP_8_BIT_DATA |
 			  MMC_CAP_NONREMOVABLE,
+	.ccs_unsupported = true,
 	.slave_id_tx	= SHDMA_SLAVE_MMCIF_TX,
 	.slave_id_rx	= SHDMA_SLAVE_MMCIF_RX,
 };
-- 
cgit 


From 58d0bbd1a734831262157f006306f084dda9605d Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Wed, 10 Jul 2013 21:21:15 +0200
Subject: ARM: shmobile: kzm9g: disable MMCIF Command Completion Signal

MMCIF on sh73a0 doesn't support Command Completion Signal, a platform
parameter has to be added to disable it on kzm9g.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-kzm9g.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-shmobile/board-kzm9g.c b/arch/arm/mach-shmobile/board-kzm9g.c
index f1994968d303..fe689b7fdc9e 100644
--- a/arch/arm/mach-shmobile/board-kzm9g.c
+++ b/arch/arm/mach-shmobile/board-kzm9g.c
@@ -366,6 +366,7 @@ static struct resource sh_mmcif_resources[] = {
 static struct sh_mmcif_plat_data sh_mmcif_platdata = {
 	.ocr		= MMC_VDD_165_195,
 	.caps		= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
+	.ccs_unsupported = true,
 	.slave_id_tx	= SHDMA_SLAVE_MMCIF_TX,
 	.slave_id_rx	= SHDMA_SLAVE_MMCIF_RX,
 };
-- 
cgit 


From b77c6bcef2082a7cd96124daf15df8da5b670ebe Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Wed, 10 Jul 2013 21:21:17 +0200
Subject: ARM: shmobile: lager: disable MMCIF Command Completion Signal, add
 CLK_CTRL2

MMCIF on r8a7790 doesn't support Command Completion Signal, but it does
implement a CE_CLK_CTRL2 register. Platform parameters have to be added to
account for these features on lager.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-lager.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index 9fbbf23244a8..1e231423b2b0 100644
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -142,6 +142,8 @@ static struct regulator_consumer_supply fixed3v3_power_consumers[] =
 /* MMCIF */
 static struct sh_mmcif_plat_data mmcif1_pdata __initdata = {
 	.caps		= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
+	.clk_ctrl2_present = true,
+	.ccs_unsupported = true,
 };
 
 static struct resource mmcif1_resources[] __initdata = {
-- 
cgit 


From a112de8c7ae231f396e28160e84d0eab3a79dffc Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Thu, 29 Aug 2013 08:21:58 +0900
Subject: ARM: shmobile: Shared APMU SMP support code without DT

Introduce shared APMU SMP code for mach-shmobile. Both SMP boot up
and CPU Hotplug is supported. This version does not use DT but
if needed this will be added as an incremental feature patch.

The code is designed around CONFIG_NR_CPUS and should in theory support
any number of APMUs, however due to the current DT-less static design
only a single APMU is supported.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/include/mach/common.h |   6 +
 arch/arm/mach-shmobile/platsmp-apmu.c        | 178 +++++++++++++++++++++++++++
 2 files changed, 184 insertions(+)
 create mode 100644 arch/arm/mach-shmobile/platsmp-apmu.c

diff --git a/arch/arm/mach-shmobile/include/mach/common.h b/arch/arm/mach-shmobile/include/mach/common.h
index cfe397716fd1..3460bb13c988 100644
--- a/arch/arm/mach-shmobile/include/mach/common.h
+++ b/arch/arm/mach-shmobile/include/mach/common.h
@@ -22,6 +22,12 @@ extern int shmobile_smp_scu_boot_secondary(unsigned int cpu,
 					   struct task_struct *idle);
 extern void shmobile_smp_scu_cpu_die(unsigned int cpu);
 extern int shmobile_smp_scu_cpu_kill(unsigned int cpu);
+extern void shmobile_smp_apmu_prepare_cpus(unsigned int max_cpus);
+extern int shmobile_smp_apmu_boot_secondary(unsigned int cpu,
+					    struct task_struct *idle);
+extern void shmobile_smp_apmu_cpu_die(unsigned int cpu);
+extern int shmobile_smp_apmu_cpu_kill(unsigned int cpu);
+extern void shmobile_invalidate_start(void);
 struct clk;
 extern int shmobile_clk_init(void);
 extern void shmobile_handle_irq_intc(struct pt_regs *);
diff --git a/arch/arm/mach-shmobile/platsmp-apmu.c b/arch/arm/mach-shmobile/platsmp-apmu.c
new file mode 100644
index 000000000000..34dc40dacb79
--- /dev/null
+++ b/arch/arm/mach-shmobile/platsmp-apmu.c
@@ -0,0 +1,178 @@
+/*
+ * SMP support for SoCs with APMU
+ *
+ * Copyright (C) 2013  Magnus Damm
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/of_address.h>
+#include <linux/smp.h>
+#include <asm/cacheflush.h>
+#include <asm/cp15.h>
+#include <asm/smp_plat.h>
+#include <mach/common.h>
+
+static struct {
+	void __iomem *iomem;
+	int bit;
+} apmu_cpus[CONFIG_NR_CPUS];
+
+#define WUPCR_OFFS 0x10
+#define PSTR_OFFS 0x40
+#define CPUNCR_OFFS(n) (0x100 + (0x10 * (n)))
+
+static int apmu_power_on(void __iomem *p, int bit)
+{
+	/* request power on */
+	writel_relaxed(BIT(bit), p + WUPCR_OFFS);
+
+	/* wait for APMU to finish */
+	while (readl_relaxed(p + WUPCR_OFFS) != 0)
+		;
+
+	return 0;
+}
+
+static int apmu_power_off(void __iomem *p, int bit)
+{
+	/* request Core Standby for next WFI */
+	writel_relaxed(3, p + CPUNCR_OFFS(bit));
+	return 0;
+}
+
+static int apmu_power_off_poll(void __iomem *p, int bit)
+{
+	int k;
+
+	for (k = 0; k < 1000; k++) {
+		if (((readl_relaxed(p + PSTR_OFFS) >> (bit * 4)) & 0x03) == 3)
+			return 1;
+
+		mdelay(1);
+	}
+
+	return 0;
+}
+
+static int apmu_wrap(int cpu, int (*fn)(void __iomem *p, int cpu))
+{
+	void __iomem *p = apmu_cpus[cpu].iomem;
+
+	return p ? fn(p, apmu_cpus[cpu].bit) : -EINVAL;
+}
+
+static void apmu_init_cpu(struct resource *res, int cpu, int bit)
+{
+	if (apmu_cpus[cpu].iomem)
+		return;
+
+	apmu_cpus[cpu].iomem = ioremap_nocache(res->start, resource_size(res));
+	apmu_cpus[cpu].bit = bit;
+
+	pr_debug("apmu ioremap %d %d 0x%08x 0x%08x\n", cpu, bit,
+		 res->start, resource_size(res));
+}
+
+static struct {
+	struct resource iomem;
+	int cpus[4];
+} apmu_config[] = {
+	{
+		.iomem = DEFINE_RES_MEM(0xe6152000, 0x88),
+		.cpus = { 0, 1, 2, 3 },
+	}
+};
+
+static void apmu_parse_cfg(void (*fn)(struct resource *res, int cpu, int bit))
+{
+	u32 id;
+	int k;
+	int bit, index;
+
+	for (k = 0; k < ARRAY_SIZE(apmu_config); k++) {
+		for (bit = 0; bit < ARRAY_SIZE(apmu_config[k].cpus); bit++) {
+			id = apmu_config[k].cpus[bit];
+			if (id >= 0) {
+				index = get_logical_index(id);
+				if (index >= 0)
+					fn(&apmu_config[k].iomem, index, bit);
+			}
+		}
+	}
+}
+
+void __init shmobile_smp_apmu_prepare_cpus(unsigned int max_cpus)
+{
+	/* install boot code shared by all CPUs */
+	shmobile_boot_fn = virt_to_phys(shmobile_smp_boot);
+	shmobile_boot_arg = MPIDR_HWID_BITMASK;
+
+	/* perform per-cpu setup */
+	apmu_parse_cfg(apmu_init_cpu);
+}
+
+int shmobile_smp_apmu_boot_secondary(unsigned int cpu, struct task_struct *idle)
+{
+	/* For this particular CPU register boot vector */
+	shmobile_smp_hook(cpu, virt_to_phys(shmobile_invalidate_start), 0);
+
+	return apmu_wrap(cpu, apmu_power_on);
+}
+
+#ifdef CONFIG_HOTPLUG_CPU
+/* nicked from arch/arm/mach-exynos/hotplug.c */
+static inline void cpu_enter_lowpower_a15(void)
+{
+	unsigned int v;
+
+	asm volatile(
+	"       mrc     p15, 0, %0, c1, c0, 0\n"
+	"       bic     %0, %0, %1\n"
+	"       mcr     p15, 0, %0, c1, c0, 0\n"
+		: "=&r" (v)
+		: "Ir" (CR_C)
+		: "cc");
+
+	flush_cache_louis();
+
+	asm volatile(
+	/*
+	 * Turn off coherency
+	 */
+	"       mrc     p15, 0, %0, c1, c0, 1\n"
+	"       bic     %0, %0, %1\n"
+	"       mcr     p15, 0, %0, c1, c0, 1\n"
+		: "=&r" (v)
+		: "Ir" (0x40)
+		: "cc");
+
+	isb();
+	dsb();
+}
+
+void shmobile_smp_apmu_cpu_die(unsigned int cpu)
+{
+	/* For this particular CPU deregister boot vector */
+	shmobile_smp_hook(cpu, 0, 0);
+
+	/* Select next sleep mode using the APMU */
+	apmu_wrap(cpu, apmu_power_off);
+
+	/* Do ARM specific CPU shutdown */
+	cpu_enter_lowpower_a15();
+
+	/* jump to shared mach-shmobile sleep / reset code */
+	shmobile_smp_sleep();
+}
+
+int shmobile_smp_apmu_cpu_kill(unsigned int cpu)
+{
+	return apmu_wrap(cpu, apmu_power_off_poll);
+}
+#endif
-- 
cgit 


From ad09cb83811b228eb6f98230d307bb837e6a758f Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Thu, 29 Aug 2013 08:22:07 +0900
Subject: ARM: shmobile: Add r8a7790 SMP support using APMU code

Add r8a7790 SMP support using the shared APMU code. To enable
SMP the r8a7790 specific DTS needs to be updated to include
CPU cores, and this is happening in a separate patch.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/Makefile                |  1 +
 arch/arm/mach-shmobile/board-lager-reference.c |  1 +
 arch/arm/mach-shmobile/board-lager.c           |  1 +
 arch/arm/mach-shmobile/include/mach/r8a7790.h  |  1 +
 arch/arm/mach-shmobile/setup-r8a7790.c         |  1 +
 arch/arm/mach-shmobile/smp-r8a7790.c           | 67 ++++++++++++++++++++++++++
 6 files changed, 72 insertions(+)
 create mode 100644 arch/arm/mach-shmobile/smp-r8a7790.c

diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 2705bfa8c113..381fc97ef0f5 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -34,6 +34,7 @@ endif
 smp-y				:= platsmp.o headsmp.o
 smp-$(CONFIG_ARCH_SH73A0)	+= smp-sh73a0.o headsmp-scu.o platsmp-scu.o
 smp-$(CONFIG_ARCH_R8A7779)	+= smp-r8a7779.o headsmp-scu.o platsmp-scu.o
+smp-$(CONFIG_ARCH_R8A7790)	+= smp-r8a7790.o platsmp-apmu.o
 smp-$(CONFIG_ARCH_EMEV2)	+= smp-emev2.o headsmp-scu.o platsmp-scu.o
 
 # IRQ objects
diff --git a/arch/arm/mach-shmobile/board-lager-reference.c b/arch/arm/mach-shmobile/board-lager-reference.c
index 2856f51ff8a6..d39a91b3ba48 100644
--- a/arch/arm/mach-shmobile/board-lager-reference.c
+++ b/arch/arm/mach-shmobile/board-lager-reference.c
@@ -38,6 +38,7 @@ static const char *lager_boards_compat_dt[] __initdata = {
 };
 
 DT_MACHINE_START(LAGER_DT, "lager")
+	.smp		= smp_ops(r8a7790_smp_ops),
 	.init_early	= r8a7790_init_early,
 	.init_machine	= lager_add_standard_devices,
 	.init_time	= r8a7790_timer_init,
diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index 4047fac811c0..ef3baaa79e6d 100644
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -161,6 +161,7 @@ static const char *lager_boards_compat_dt[] __initdata = {
 };
 
 DT_MACHINE_START(LAGER_DT, "lager")
+	.smp		= smp_ops(r8a7790_smp_ops),
 	.init_early	= r8a7790_init_early,
 	.init_time	= r8a7790_timer_init,
 	.init_machine	= lager_add_standard_devices,
diff --git a/arch/arm/mach-shmobile/include/mach/r8a7790.h b/arch/arm/mach-shmobile/include/mach/r8a7790.h
index 177a8372abb7..79e731c83e50 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7790.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7790.h
@@ -7,6 +7,7 @@ void r8a7790_clock_init(void);
 void r8a7790_pinmux_init(void);
 void r8a7790_init_early(void);
 void r8a7790_timer_init(void);
+extern struct smp_operations r8a7790_smp_ops;
 
 #define MD(nr) BIT(nr)
 u32 r8a7790_read_mode_pins(void);
diff --git a/arch/arm/mach-shmobile/setup-r8a7790.c b/arch/arm/mach-shmobile/setup-r8a7790.c
index e0d29a265c2d..c7e24eff9ba2 100644
--- a/arch/arm/mach-shmobile/setup-r8a7790.c
+++ b/arch/arm/mach-shmobile/setup-r8a7790.c
@@ -283,6 +283,7 @@ static const char * const r8a7790_boards_compat_dt[] __initconst = {
 };
 
 DT_MACHINE_START(R8A7790_DT, "Generic R8A7790 (Flattened Device Tree)")
+	.smp		= smp_ops(r8a7790_smp_ops),
 	.init_early	= r8a7790_init_early,
 	.init_time	= r8a7790_timer_init,
 	.dt_compat	= r8a7790_boards_compat_dt,
diff --git a/arch/arm/mach-shmobile/smp-r8a7790.c b/arch/arm/mach-shmobile/smp-r8a7790.c
new file mode 100644
index 000000000000..015e2753de1f
--- /dev/null
+++ b/arch/arm/mach-shmobile/smp-r8a7790.c
@@ -0,0 +1,67 @@
+/*
+ * SMP support for r8a7790
+ *
+ * Copyright (C) 2012-2013 Renesas Solutions Corp.
+ * Copyright (C) 2012 Takashi Yoshii <takashi.yoshii.ze@renesas.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/smp.h>
+#include <linux/io.h>
+#include <asm/smp_plat.h>
+#include <mach/common.h>
+
+#define RST		0xe6160000
+#define CA15BAR		0x0020
+#define CA7BAR		0x0030
+#define CA15RESCNT	0x0040
+#define CA7RESCNT	0x0044
+#define MERAM		0xe8080000
+
+static void __init r8a7790_smp_prepare_cpus(unsigned int max_cpus)
+{
+	void __iomem *p;
+	u32 bar;
+
+	/* let APMU code install data related to shmobile_boot_vector */
+	shmobile_smp_apmu_prepare_cpus(max_cpus);
+
+	/* MERAM for jump stub, because BAR requires 256KB aligned address */
+	p = ioremap_nocache(MERAM, shmobile_boot_size);
+	memcpy_toio(p, shmobile_boot_vector, shmobile_boot_size);
+	iounmap(p);
+
+	/* setup reset vectors */
+	p = ioremap_nocache(RST, 0x63);
+	bar = (MERAM >> 8) & 0xfffffc00;
+	writel_relaxed(bar, p + CA15BAR);
+	writel_relaxed(bar, p + CA7BAR);
+	writel_relaxed(bar | 0x10, p + CA15BAR);
+	writel_relaxed(bar | 0x10, p + CA7BAR);
+
+	/* enable clocks to all CPUs */
+	writel_relaxed((readl_relaxed(p + CA15RESCNT) & ~0x0f) | 0xa5a50000,
+		       p + CA15RESCNT);
+	writel_relaxed((readl_relaxed(p + CA7RESCNT) & ~0x0f) | 0x5a5a0000,
+		       p + CA7RESCNT);
+	iounmap(p);
+}
+
+struct smp_operations r8a7790_smp_ops __initdata = {
+	.smp_prepare_cpus	= r8a7790_smp_prepare_cpus,
+	.smp_boot_secondary	= shmobile_smp_apmu_boot_secondary,
+#ifdef CONFIG_HOTPLUG_CPU
+	.cpu_disable		= shmobile_smp_cpu_disable,
+	.cpu_die		= shmobile_smp_apmu_cpu_die,
+	.cpu_kill		= shmobile_smp_apmu_cpu_kill,
+#endif
+};
-- 
cgit 


From 916d6121b5947f162979595cc1c0396192a9aa86 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Sat, 14 Sep 2013 22:46:25 +0900
Subject: ARM: shmobile: Add CPU notifier based SCU boot vector code

Add CPU notifiers for the shared mach-shmobile SCU code
to allow removal of the shared SCU boot_secondary code.

Regarding notifiers, at CPU_UP_PREPARE time the SMP boot
vector is initialized so secondary CPU cores can boot.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/platsmp-scu.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm/mach-shmobile/platsmp-scu.c b/arch/arm/mach-shmobile/platsmp-scu.c
index c96f50160be6..49ae8dfc625d 100644
--- a/arch/arm/mach-shmobile/platsmp-scu.c
+++ b/arch/arm/mach-shmobile/platsmp-scu.c
@@ -7,6 +7,7 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
+#include <linux/cpu.h>
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/io.h>
@@ -16,6 +17,26 @@
 #include <asm/smp_scu.h>
 #include <mach/common.h>
 
+static int shmobile_smp_scu_notifier_call(struct notifier_block *nfb,
+					  unsigned long action, void *hcpu)
+{
+	unsigned int cpu = (long)hcpu;
+
+	switch (action) {
+	case CPU_UP_PREPARE:
+		/* For this particular CPU register SCU SMP boot vector */
+		shmobile_smp_hook(cpu, virt_to_phys(shmobile_boot_scu),
+				  (unsigned long)shmobile_scu_base);
+		break;
+	};
+
+	return NOTIFY_OK;
+}
+
+static struct notifier_block shmobile_smp_scu_notifier = {
+	.notifier_call = shmobile_smp_scu_notifier_call,
+};
+
 void __init shmobile_smp_scu_prepare_cpus(unsigned int max_cpus)
 {
 	/* install boot code shared by all CPUs */
@@ -25,6 +46,9 @@ void __init shmobile_smp_scu_prepare_cpus(unsigned int max_cpus)
 	/* enable SCU and cache coherency on booting CPU */
 	scu_enable(shmobile_scu_base);
 	scu_power_mode(shmobile_scu_base, SCU_PM_NORMAL);
+
+	/* Use CPU notifier for reset vector control */
+	register_cpu_notifier(&shmobile_smp_scu_notifier);
 }
 
 int shmobile_smp_scu_boot_secondary(unsigned int cpu, struct task_struct *idle)
-- 
cgit 


From 344bc8b0c85a63cd2d946376a391e74f4ea0ae46 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Sat, 14 Sep 2013 22:46:34 +0900
Subject: ARM: shmobile: Let sh73a0 rely on SCU CPU notifier

Now when CPU notifiers are used for SCU boot vector
setup shmobile_smp_scu_boot_secondary() is no longer
needed.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/smp-sh73a0.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/arm/mach-shmobile/smp-sh73a0.c b/arch/arm/mach-shmobile/smp-sh73a0.c
index 9a30a3fc7e7d..13ba36a6831f 100644
--- a/arch/arm/mach-shmobile/smp-sh73a0.c
+++ b/arch/arm/mach-shmobile/smp-sh73a0.c
@@ -46,11 +46,6 @@ void __init sh73a0_register_twd(void)
 static int sh73a0_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
 	unsigned int lcpu = cpu_logical_map(cpu);
-	int ret;
-
-	ret = shmobile_smp_scu_boot_secondary(cpu, idle);
-	if (ret)
-		return ret;
 
 	if (((__raw_readl(PSTR) >> (4 * lcpu)) & 3) == 3)
 		__raw_writel(1 << lcpu, WUPCR);	/* wake up */
-- 
cgit 


From 344c62f7a65f9124d5262e34dab66d581081a3a7 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Sat, 14 Sep 2013 22:46:43 +0900
Subject: ARM: shmobile: Let EMEV2 rely on SCU CPU notifier

Now when CPU notifiers are used for SCU boot vector
setup shmobile_smp_scu_boot_secondary() is no longer
needed.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/smp-emev2.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/arch/arm/mach-shmobile/smp-emev2.c b/arch/arm/mach-shmobile/smp-emev2.c
index 522de5ebb55f..f2ca92308f75 100644
--- a/arch/arm/mach-shmobile/smp-emev2.c
+++ b/arch/arm/mach-shmobile/smp-emev2.c
@@ -34,12 +34,6 @@
 
 static int emev2_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
-	int ret;
-
-	ret = shmobile_smp_scu_boot_secondary(cpu, idle);
-	if (ret)
-		return ret;
-
 	arch_send_wakeup_ipi_mask(cpumask_of(cpu_logical_map(cpu)));
 	return 0;
 }
-- 
cgit 


From deb4928ea39c5eeef1c9f4562b5cee71f06a31ad Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Sat, 14 Sep 2013 22:46:52 +0900
Subject: ARM: shmobile: Let r8a7779 rely on SCU CPU notifier

Now when CPU notifiers are used for SCU boot vector
setup shmobile_smp_scu_boot_secondary() is no longer
needed.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/smp-r8a7779.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/arm/mach-shmobile/smp-r8a7779.c b/arch/arm/mach-shmobile/smp-r8a7779.c
index 0f05e9fb722f..627c1f0d9478 100644
--- a/arch/arm/mach-shmobile/smp-r8a7779.c
+++ b/arch/arm/mach-shmobile/smp-r8a7779.c
@@ -87,10 +87,6 @@ static int r8a7779_boot_secondary(unsigned int cpu, struct task_struct *idle)
 	unsigned int lcpu = cpu_logical_map(cpu);
 	int ret;
 
-	ret = shmobile_smp_scu_boot_secondary(cpu, idle);
-	if (ret)
-		return ret;
-
 	if (lcpu < ARRAY_SIZE(r8a7779_ch_cpu))
 		ch = r8a7779_ch_cpu[lcpu];
 
-- 
cgit 


From e4550216ef8245b1c9892239a2121a7b15ac2e91 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Sat, 14 Sep 2013 22:47:02 +0900
Subject: ARM: shmobile: Remove shmobile_smp_scu_boot_secondary()

Remove shmobile_smp_scu_boot_secondary() since
it is no longer used. CPU boot vector setup is
instead handled by CPU notifiers.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/include/mach/common.h | 2 --
 arch/arm/mach-shmobile/platsmp-scu.c         | 8 --------
 2 files changed, 10 deletions(-)

diff --git a/arch/arm/mach-shmobile/include/mach/common.h b/arch/arm/mach-shmobile/include/mach/common.h
index 3460bb13c988..e31980590eb4 100644
--- a/arch/arm/mach-shmobile/include/mach/common.h
+++ b/arch/arm/mach-shmobile/include/mach/common.h
@@ -18,8 +18,6 @@ extern int shmobile_smp_cpu_disable(unsigned int cpu);
 extern void shmobile_invalidate_start(void);
 extern void shmobile_boot_scu(void);
 extern void shmobile_smp_scu_prepare_cpus(unsigned int max_cpus);
-extern int shmobile_smp_scu_boot_secondary(unsigned int cpu,
-					   struct task_struct *idle);
 extern void shmobile_smp_scu_cpu_die(unsigned int cpu);
 extern int shmobile_smp_scu_cpu_kill(unsigned int cpu);
 extern void shmobile_smp_apmu_prepare_cpus(unsigned int max_cpus);
diff --git a/arch/arm/mach-shmobile/platsmp-scu.c b/arch/arm/mach-shmobile/platsmp-scu.c
index 49ae8dfc625d..673ad6e80869 100644
--- a/arch/arm/mach-shmobile/platsmp-scu.c
+++ b/arch/arm/mach-shmobile/platsmp-scu.c
@@ -51,14 +51,6 @@ void __init shmobile_smp_scu_prepare_cpus(unsigned int max_cpus)
 	register_cpu_notifier(&shmobile_smp_scu_notifier);
 }
 
-int shmobile_smp_scu_boot_secondary(unsigned int cpu, struct task_struct *idle)
-{
-	/* For this particular CPU register SCU boot vector */
-	shmobile_smp_hook(cpu, virt_to_phys(shmobile_boot_scu),
-			  (unsigned long)shmobile_scu_base);
-	return 0;
-}
-
 #ifdef CONFIG_HOTPLUG_CPU
 void shmobile_smp_scu_cpu_die(unsigned int cpu)
 {
-- 
cgit 


From ee490bcc4f2d456c40df93236cf6a1bce2d5ddd0 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Sun, 15 Sep 2013 00:29:07 +0900
Subject: ARM: shmobile: Extend APMU code to allow single cluster only

Extend the APMU code with a check to only allow boot
of CPU cores that sit in the same cluster as CPU0.

This makes it possible for people to use the r8a790
CA7 boot mode with CA7-cores only. The default CA15
boot mode will enable CA15 cores only. This is an
intentional software limitation to cope with lacking
scheduler support.

By removing this patch it is possible to run all 8 cores
in parallel, but this is not recommended without out of tree
scheduler modfications or custom user space code to control
the CPU affinitiy.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/platsmp-apmu.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm/mach-shmobile/platsmp-apmu.c b/arch/arm/mach-shmobile/platsmp-apmu.c
index 34dc40dacb79..caaaa35b589f 100644
--- a/arch/arm/mach-shmobile/platsmp-apmu.c
+++ b/arch/arm/mach-shmobile/platsmp-apmu.c
@@ -94,8 +94,21 @@ static void apmu_parse_cfg(void (*fn)(struct resource *res, int cpu, int bit))
 	u32 id;
 	int k;
 	int bit, index;
+	bool is_allowed;
 
 	for (k = 0; k < ARRAY_SIZE(apmu_config); k++) {
+		/* only enable the cluster that includes the boot CPU */
+		is_allowed = false;
+		for (bit = 0; bit < ARRAY_SIZE(apmu_config[k].cpus); bit++) {
+			id = apmu_config[k].cpus[bit];
+			if (id >= 0) {
+				if (id == cpu_logical_map(0))
+					is_allowed = true;
+			}
+		}
+		if (!is_allowed)
+			continue;
+
 		for (bit = 0; bit < ARRAY_SIZE(apmu_config[k].cpus); bit++) {
 			id = apmu_config[k].cpus[bit];
 			if (id >= 0) {
-- 
cgit 


From 43651b15de94d6a5e188ea032311e9661ec708d2 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Sun, 15 Sep 2013 00:29:16 +0900
Subject: ARM: shmobile: Include CA7 cores in APMU table

Add information to the shared APMU code regarding
the APMU instance used to control the CA7 cores.

This can be used on r8a7790 and r8a73a4, but should
most likely be converted to DT in the future.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/platsmp-apmu.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/mach-shmobile/platsmp-apmu.c b/arch/arm/mach-shmobile/platsmp-apmu.c
index caaaa35b589f..1da5a72d9642 100644
--- a/arch/arm/mach-shmobile/platsmp-apmu.c
+++ b/arch/arm/mach-shmobile/platsmp-apmu.c
@@ -86,6 +86,10 @@ static struct {
 	{
 		.iomem = DEFINE_RES_MEM(0xe6152000, 0x88),
 		.cpus = { 0, 1, 2, 3 },
+	},
+	{
+		.iomem = DEFINE_RES_MEM(0xe6151000, 0x88),
+		.cpus = { 0x100, 0x101, 0x102, 0x103 },
 	}
 };
 
-- 
cgit 


From d2724de1874917be2a12939657820616742bd8ec Mon Sep 17 00:00:00 2001
From: Hannes Gräuler <hgraeule@uos.de>
Date: Sat, 28 Sep 2013 21:51:08 +0200
Subject: ALSA: snd-usb-caiaq: LED support for Maschine Controller
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This patch adds LED support for the Native Instruments Maschine
Controller. It adds ALSA controls for dimming the LEDs of all
buttons and the backlight of the two displays.

Signed-off-by: Hannes Gräuler <hgraeule@uos.de>
Acked-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/caiaq/control.c | 92 +++++++++++++++++++++++++++++++++++++++++++++++
 sound/usb/caiaq/device.c  | 25 +++++++++++++
 sound/usb/caiaq/device.h  |  5 +++
 3 files changed, 122 insertions(+)

diff --git a/sound/usb/caiaq/control.c b/sound/usb/caiaq/control.c
index ae6b50f9ed56..f65fc0987cfb 100644
--- a/sound/usb/caiaq/control.c
+++ b/sound/usb/caiaq/control.c
@@ -28,6 +28,7 @@
 #include "control.h"
 
 #define CNT_INTVAL 0x10000
+#define MASCHINE_BANK_SIZE 32
 
 static int control_info(struct snd_kcontrol *kcontrol,
 			struct snd_ctl_elem_info *uinfo)
@@ -105,6 +106,10 @@ static int control_put(struct snd_kcontrol *kcontrol,
 		USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_TRAKTORKONTROLX1))
 		cmd = EP1_CMD_DIMM_LEDS;
 
+	if (cdev->chip.usb_id ==
+		USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER))
+		cmd = EP1_CMD_DIMM_LEDS;
+
 	if (pos & CNT_INTVAL) {
 		int i = pos & ~CNT_INTVAL;
 
@@ -121,6 +126,20 @@ static int control_put(struct snd_kcontrol *kcontrol,
 				     usb_sndbulkpipe(cdev->chip.dev, 8),
 				     cdev->ep8_out_buf, sizeof(cdev->ep8_out_buf),
 				     &actual_len, 200);
+		} else if (cdev->chip.usb_id ==
+			USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER)) {
+
+			int bank = 0;
+			int offset = 0;
+
+			if (i >= MASCHINE_BANK_SIZE) {
+				bank = 0x1e;
+				offset = MASCHINE_BANK_SIZE;
+			}
+
+			snd_usb_caiaq_send_command_bank(cdev, cmd, bank,
+					cdev->control_state + offset,
+					MASCHINE_BANK_SIZE);
 		} else {
 			snd_usb_caiaq_send_command(cdev, cmd,
 					cdev->control_state, sizeof(cdev->control_state));
@@ -490,6 +509,74 @@ static struct caiaq_controller kontrols4_controller[] = {
 	{ "LED: FX2: Mode",			133 | CNT_INTVAL },
 };
 
+static struct caiaq_controller maschine_controller[] = {
+	{ "LED: Pad 1",				3  | CNT_INTVAL },
+	{ "LED: Pad 2",				2  | CNT_INTVAL },
+	{ "LED: Pad 3",				1  | CNT_INTVAL },
+	{ "LED: Pad 4",				0  | CNT_INTVAL },
+	{ "LED: Pad 5",				7  | CNT_INTVAL },
+	{ "LED: Pad 6",				6  | CNT_INTVAL },
+	{ "LED: Pad 7",				5  | CNT_INTVAL },
+	{ "LED: Pad 8",				4  | CNT_INTVAL },
+	{ "LED: Pad 9",				11 | CNT_INTVAL },
+	{ "LED: Pad 10",			10 | CNT_INTVAL },
+	{ "LED: Pad 11",			9  | CNT_INTVAL },
+	{ "LED: Pad 12",			8  | CNT_INTVAL },
+	{ "LED: Pad 13",			15 | CNT_INTVAL },
+	{ "LED: Pad 14",			14 | CNT_INTVAL },
+	{ "LED: Pad 15",			13 | CNT_INTVAL },
+	{ "LED: Pad 16",			12 | CNT_INTVAL },
+
+	{ "LED: Mute",				16 | CNT_INTVAL },
+	{ "LED: Solo",				17 | CNT_INTVAL },
+	{ "LED: Select",			18 | CNT_INTVAL },
+	{ "LED: Duplicate",			19 | CNT_INTVAL },
+	{ "LED: Navigate",			20 | CNT_INTVAL },
+	{ "LED: Pad Mode",			21 | CNT_INTVAL },
+	{ "LED: Pattern",			22 | CNT_INTVAL },
+	{ "LED: Scene",				23 | CNT_INTVAL },
+
+	{ "LED: Shift",				24 | CNT_INTVAL },
+	{ "LED: Erase",				25 | CNT_INTVAL },
+	{ "LED: Grid",				26 | CNT_INTVAL },
+	{ "LED: Right Bottom",			27 | CNT_INTVAL },
+	{ "LED: Rec",				28 | CNT_INTVAL },
+	{ "LED: Play",				29 | CNT_INTVAL },
+	{ "LED: Left Bottom",			32 | CNT_INTVAL },
+	{ "LED: Restart",			33 | CNT_INTVAL },
+
+	{ "LED: Group A",			41 | CNT_INTVAL },
+	{ "LED: Group B",			40 | CNT_INTVAL },
+	{ "LED: Group C",			37 | CNT_INTVAL },
+	{ "LED: Group D",			36 | CNT_INTVAL },
+	{ "LED: Group E",			39 | CNT_INTVAL },
+	{ "LED: Group F",			38 | CNT_INTVAL },
+	{ "LED: Group G",			35 | CNT_INTVAL },
+	{ "LED: Group H",			34 | CNT_INTVAL },
+
+	{ "LED: Auto Write",			42 | CNT_INTVAL },
+	{ "LED: Snap",				43 | CNT_INTVAL },
+	{ "LED: Right Top",			44 | CNT_INTVAL },
+	{ "LED: Left Top",			45 | CNT_INTVAL },
+	{ "LED: Sampling",			46 | CNT_INTVAL },
+	{ "LED: Browse",			47 | CNT_INTVAL },
+	{ "LED: Step",				48 | CNT_INTVAL },
+	{ "LED: Control",			49 | CNT_INTVAL },
+
+	{ "LED: Top Button 1",			57 | CNT_INTVAL },
+	{ "LED: Top Button 2",			56 | CNT_INTVAL },
+	{ "LED: Top Button 3",			55 | CNT_INTVAL },
+	{ "LED: Top Button 4",			54 | CNT_INTVAL },
+	{ "LED: Top Button 5",			53 | CNT_INTVAL },
+	{ "LED: Top Button 6",			52 | CNT_INTVAL },
+	{ "LED: Top Button 7",			51 | CNT_INTVAL },
+	{ "LED: Top Button 8",			50 | CNT_INTVAL },
+
+	{ "LED: Note Repeat",			58 | CNT_INTVAL },
+
+	{ "Backlight Display",			59 | CNT_INTVAL }
+};
+
 static int add_controls(struct caiaq_controller *c, int num,
 			struct snd_usb_caiaqdev *cdev)
 {
@@ -553,6 +640,11 @@ int snd_usb_caiaq_control_init(struct snd_usb_caiaqdev *cdev)
 		ret = add_controls(kontrols4_controller,
 			ARRAY_SIZE(kontrols4_controller), cdev);
 		break;
+
+	case USB_ID(USB_VID_NATIVEINSTRUMENTS, USB_PID_MASCHINECONTROLLER):
+		ret = add_controls(maschine_controller,
+			ARRAY_SIZE(maschine_controller), cdev);
+		break;
 	}
 
 	return ret;
diff --git a/sound/usb/caiaq/device.c b/sound/usb/caiaq/device.c
index 1a61dd12fe38..bc55f708a696 100644
--- a/sound/usb/caiaq/device.c
+++ b/sound/usb/caiaq/device.c
@@ -235,6 +235,31 @@ int snd_usb_caiaq_send_command(struct snd_usb_caiaqdev *cdev,
 			   cdev->ep1_out_buf, len+1, &actual_len, 200);
 }
 
+int snd_usb_caiaq_send_command_bank(struct snd_usb_caiaqdev *cdev,
+			       unsigned char command,
+			       unsigned char bank,
+			       const unsigned char *buffer,
+			       int len)
+{
+	int actual_len;
+	struct usb_device *usb_dev = cdev->chip.dev;
+
+	if (!usb_dev)
+		return -EIO;
+
+	if (len > EP1_BUFSIZE - 2)
+		len = EP1_BUFSIZE - 2;
+
+	if (buffer && len > 0)
+		memcpy(cdev->ep1_out_buf+2, buffer, len);
+
+	cdev->ep1_out_buf[0] = command;
+	cdev->ep1_out_buf[1] = bank;
+
+	return usb_bulk_msg(usb_dev, usb_sndbulkpipe(usb_dev, 1),
+			   cdev->ep1_out_buf, len+2, &actual_len, 200);
+}
+
 int snd_usb_caiaq_set_audio_params (struct snd_usb_caiaqdev *cdev,
 		   		    int rate, int depth, int bpp)
 {
diff --git a/sound/usb/caiaq/device.h b/sound/usb/caiaq/device.h
index ad102fac6942..ab0f7520a99b 100644
--- a/sound/usb/caiaq/device.h
+++ b/sound/usb/caiaq/device.h
@@ -128,5 +128,10 @@ int snd_usb_caiaq_send_command(struct snd_usb_caiaqdev *cdev,
 			       unsigned char command,
 			       const unsigned char *buffer,
 			       int len);
+int snd_usb_caiaq_send_command_bank(struct snd_usb_caiaqdev *cdev,
+			       unsigned char command,
+			       unsigned char bank,
+			       const unsigned char *buffer,
+			       int len);
 
 #endif /* CAIAQ_DEVICE_H */
-- 
cgit 


From d2078d5adbe227d64d7963d93f13479c890a9a16 Mon Sep 17 00:00:00 2001
From: Linn Crosetto <linn@hp.com>
Date: Sun, 22 Sep 2013 19:59:08 -0600
Subject: x86: EFI stub support for large memory maps

This patch fixes a problem with EFI memory maps larger than 128 entries
when booting using the EFI stub, which results in overflowing e820_map
in boot_params and an eventual halt when checking the map size in
sanitize_e820_map().

If the number of map entries is greater than what can fit in e820_map,
add the extra entries to the setup_data list using type SETUP_E820_EXT.
These extra entries are then picked up when the setup_data list is
parsed in parse_e820_ext().

Signed-off-by: Linn Crosetto <linn@hp.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 arch/x86/boot/compressed/eboot.c | 222 ++++++++++++++++++++++++++++-----------
 1 file changed, 161 insertions(+), 61 deletions(-)

diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index beb07a4529ac..5c0dc55f2387 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -519,71 +519,47 @@ fail:
 	return NULL;
 }
 
-static efi_status_t exit_boot(struct boot_params *boot_params,
-			      void *handle)
+static void add_e820ext(struct boot_params *params,
+			struct setup_data *e820ext, u32 nr_entries)
 {
-	struct efi_info *efi = &boot_params->efi_info;
-	struct e820entry *e820_map = &boot_params->e820_map[0];
-	struct e820entry *prev = NULL;
-	unsigned long size, key, desc_size, _size;
-	efi_memory_desc_t *mem_map;
+	struct setup_data *data;
 	efi_status_t status;
-	__u32 desc_version;
-	bool called_exit = false;
-	u8 nr_entries;
-	int i;
-
-get_map:
-	status = efi_get_memory_map(sys_table, &mem_map, &size, &desc_size,
-				    &desc_version, &key);
-
-	if (status != EFI_SUCCESS)
-		return status;
+	unsigned long size;
 
-	memcpy(&efi->efi_loader_signature, EFI_LOADER_SIGNATURE, sizeof(__u32));
-	efi->efi_systab = (unsigned long)sys_table;
-	efi->efi_memdesc_size = desc_size;
-	efi->efi_memdesc_version = desc_version;
-	efi->efi_memmap = (unsigned long)mem_map;
-	efi->efi_memmap_size = size;
+	e820ext->type = SETUP_E820_EXT;
+	e820ext->len = nr_entries * sizeof(struct e820entry);
+	e820ext->next = 0;
 
-#ifdef CONFIG_X86_64
-	efi->efi_systab_hi = (unsigned long)sys_table >> 32;
-	efi->efi_memmap_hi = (unsigned long)mem_map >> 32;
-#endif
+	data = (struct setup_data *)(unsigned long)params->hdr.setup_data;
 
-	/* Might as well exit boot services now */
-	status = efi_call_phys2(sys_table->boottime->exit_boot_services,
-				handle, key);
-	if (status != EFI_SUCCESS) {
-		/*
-		 * ExitBootServices() will fail if any of the event
-		 * handlers change the memory map. In which case, we
-		 * must be prepared to retry, but only once so that
-		 * we're guaranteed to exit on repeated failures instead
-		 * of spinning forever.
-		 */
-		if (called_exit)
-			goto free_mem_map;
+	while (data && data->next)
+		data = (struct setup_data *)(unsigned long)data->next;
 
-		called_exit = true;
-		efi_call_phys1(sys_table->boottime->free_pool, mem_map);
-		goto get_map;
-	}
+	if (data)
+		data->next = (unsigned long)e820ext;
+	else
+		params->hdr.setup_data = (unsigned long)e820ext;
+}
 
-	/* Historic? */
-	boot_params->alt_mem_k = 32 * 1024;
+static efi_status_t setup_e820(struct boot_params *params,
+			       struct setup_data *e820ext, u32 e820ext_size)
+{
+	struct e820entry *e820_map = &params->e820_map[0];
+	struct efi_info *efi = &params->efi_info;
+	struct e820entry *prev = NULL;
+	u32 nr_entries;
+	u32 nr_desc;
+	int i;
 
-	/*
-	 * Convert the EFI memory map to E820.
-	 */
 	nr_entries = 0;
-	for (i = 0; i < size / desc_size; i++) {
+	nr_desc = efi->efi_memmap_size / efi->efi_memdesc_size;
+
+	for (i = 0; i < nr_desc; i++) {
 		efi_memory_desc_t *d;
 		unsigned int e820_type = 0;
-		unsigned long m = (unsigned long)mem_map;
+		unsigned long m = efi->efi_memmap;
 
-		d = (efi_memory_desc_t *)(m + (i * desc_size));
+		d = (efi_memory_desc_t *)(m + (i * efi->efi_memdesc_size));
 		switch (d->type) {
 		case EFI_RESERVED_TYPE:
 		case EFI_RUNTIME_SERVICES_CODE:
@@ -620,18 +596,142 @@ get_map:
 
 		/* Merge adjacent mappings */
 		if (prev && prev->type == e820_type &&
-		    (prev->addr + prev->size) == d->phys_addr)
+		    (prev->addr + prev->size) == d->phys_addr) {
 			prev->size += d->num_pages << 12;
-		else {
-			e820_map->addr = d->phys_addr;
-			e820_map->size = d->num_pages << 12;
-			e820_map->type = e820_type;
-			prev = e820_map++;
-			nr_entries++;
+			continue;
 		}
+
+		if (nr_entries == ARRAY_SIZE(params->e820_map)) {
+			u32 need = (nr_desc - i) * sizeof(struct e820entry) +
+				   sizeof(struct setup_data);
+
+			if (!e820ext || e820ext_size < need)
+				return EFI_BUFFER_TOO_SMALL;
+
+			/* boot_params map full, switch to e820 extended */
+			e820_map = (struct e820entry *)e820ext->data;
+		}
+
+		e820_map->addr = d->phys_addr;
+		e820_map->size = d->num_pages << PAGE_SHIFT;
+		e820_map->type = e820_type;
+		prev = e820_map++;
+		nr_entries++;
 	}
 
-	boot_params->e820_entries = nr_entries;
+	if (nr_entries > ARRAY_SIZE(params->e820_map)) {
+		u32 nr_e820ext = nr_entries - ARRAY_SIZE(params->e820_map);
+
+		add_e820ext(params, e820ext, nr_e820ext);
+		nr_entries -= nr_e820ext;
+	}
+
+	params->e820_entries = (u8)nr_entries;
+
+	return EFI_SUCCESS;
+}
+
+static efi_status_t alloc_e820ext(u32 nr_desc, struct setup_data **e820ext,
+				  u32 *e820ext_size)
+{
+	efi_status_t status;
+	unsigned long size;
+
+	size = sizeof(struct setup_data) +
+		sizeof(struct e820entry) * nr_desc;
+
+	if (*e820ext) {
+		efi_call_phys1(sys_table->boottime->free_pool, *e820ext);
+		*e820ext = NULL;
+		*e820ext_size = 0;
+	}
+
+	status = efi_call_phys3(sys_table->boottime->allocate_pool,
+				EFI_LOADER_DATA, size, e820ext);
+
+	if (status == EFI_SUCCESS)
+		*e820ext_size = size;
+
+	return status;
+}
+
+static efi_status_t exit_boot(struct boot_params *boot_params,
+			      void *handle)
+{
+	struct efi_info *efi = &boot_params->efi_info;
+	unsigned long map_sz, key, desc_size;
+	efi_memory_desc_t *mem_map;
+	struct setup_data *e820ext;
+	__u32 e820ext_size;
+	__u32 nr_desc, prev_nr_desc;
+	efi_status_t status;
+	__u32 desc_version;
+	bool called_exit = false;
+	u8 nr_entries;
+	int i;
+
+	nr_desc = 0;
+	e820ext = NULL;
+	e820ext_size = 0;
+
+get_map:
+	status = efi_get_memory_map(sys_table, &mem_map, &map_sz, &desc_size,
+				    &desc_version, &key);
+
+	if (status != EFI_SUCCESS)
+		return status;
+
+	prev_nr_desc = nr_desc;
+	nr_desc = map_sz / desc_size;
+	if (nr_desc > prev_nr_desc &&
+	    nr_desc > ARRAY_SIZE(boot_params->e820_map)) {
+		u32 nr_e820ext = nr_desc - ARRAY_SIZE(boot_params->e820_map);
+
+		status = alloc_e820ext(nr_e820ext, &e820ext, &e820ext_size);
+		if (status != EFI_SUCCESS)
+			goto free_mem_map;
+
+		efi_call_phys1(sys_table->boottime->free_pool, mem_map);
+		goto get_map; /* Allocated memory, get map again */
+	}
+
+	memcpy(&efi->efi_loader_signature, EFI_LOADER_SIGNATURE, sizeof(__u32));
+	efi->efi_systab = (unsigned long)sys_table;
+	efi->efi_memdesc_size = desc_size;
+	efi->efi_memdesc_version = desc_version;
+	efi->efi_memmap = (unsigned long)mem_map;
+	efi->efi_memmap_size = map_sz;
+
+#ifdef CONFIG_X86_64
+	efi->efi_systab_hi = (unsigned long)sys_table >> 32;
+	efi->efi_memmap_hi = (unsigned long)mem_map >> 32;
+#endif
+
+	/* Might as well exit boot services now */
+	status = efi_call_phys2(sys_table->boottime->exit_boot_services,
+				handle, key);
+	if (status != EFI_SUCCESS) {
+		/*
+		 * ExitBootServices() will fail if any of the event
+		 * handlers change the memory map. In which case, we
+		 * must be prepared to retry, but only once so that
+		 * we're guaranteed to exit on repeated failures instead
+		 * of spinning forever.
+		 */
+		if (called_exit)
+			goto free_mem_map;
+
+		called_exit = true;
+		efi_call_phys1(sys_table->boottime->free_pool, mem_map);
+		goto get_map;
+	}
+
+	/* Historic? */
+	boot_params->alt_mem_k = 32 * 1024;
+
+	status = setup_e820(boot_params, e820ext, e820ext_size);
+	if (status != EFI_SUCCESS)
+		return status;
 
 	return EFI_SUCCESS;
 
-- 
cgit 


From 0ce6cda2c75d64175394341ef60e6e1d27dd9c10 Mon Sep 17 00:00:00 2001
From: Bart Kuivenhoven <bemk@redhat.com>
Date: Mon, 23 Sep 2013 11:45:28 +0200
Subject: x86 efi: bugfix interrupt disabling sequence

The problem in efi_main was that the idt was cleared before the
interrupts were disabled.

The UEFI spec states that interrupts aren't used so this shouldn't be
too much of a problem. Peripherals however don't necessarily know about
this and thus might cause interrupts to happen anyway. Even if
ExitBootServices() has been called.

This means there is a risk of an interrupt being triggered while the IDT
register is nullified and the interrupt bit hasn't been cleared,
allowing for a triple fault.

This patch disables the interrupt flag, while leaving the existing IDT
in place. The CPU won't care about the IDT at all as long as the
interrupt bit is off, so it's safe to leave it in place as nothing will
ever happen to it.

[ Removed the now unused 'idt' variable - Matt ]

Signed-off-by: Bart Kuivenhoven <bemk@redhat.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 arch/x86/boot/compressed/eboot.c | 17 ++---------------
 1 file changed, 2 insertions(+), 15 deletions(-)

diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index 5c0dc55f2387..a7677babf946 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -748,7 +748,7 @@ free_mem_map:
 struct boot_params *efi_main(void *handle, efi_system_table_t *_table,
 			     struct boot_params *boot_params)
 {
-	struct desc_ptr *gdt, *idt;
+	struct desc_ptr *gdt;
 	efi_loaded_image_t *image;
 	struct setup_header *hdr = &boot_params->hdr;
 	efi_status_t status;
@@ -780,17 +780,6 @@ struct boot_params *efi_main(void *handle, efi_system_table_t *_table,
 		goto fail;
 	}
 
-	status = efi_call_phys3(sys_table->boottime->allocate_pool,
-				EFI_LOADER_DATA, sizeof(*idt),
-				(void **)&idt);
-	if (status != EFI_SUCCESS) {
-		efi_printk(sys_table, "Failed to alloc mem for idt structure\n");
-		goto fail;
-	}
-
-	idt->size = 0;
-	idt->address = 0;
-
 	/*
 	 * If the kernel isn't already loaded at the preferred load
 	 * address, relocate it.
@@ -865,10 +854,8 @@ struct boot_params *efi_main(void *handle, efi_system_table_t *_table,
 	desc->base2 = 0x00;
 #endif /* CONFIG_X86_64 */
 
-	asm volatile ("lidt %0" : : "m" (*idt));
-	asm volatile ("lgdt %0" : : "m" (*gdt));
-
 	asm volatile("cli");
+	asm volatile ("lgdt %0" : : "m" (*gdt));
 
 	return boot_params;
 fail:
-- 
cgit 


From 5df529d440aa4f0e67be9af3718e7edf05db7d02 Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Fri, 20 Sep 2013 13:51:56 +0200
Subject: regulator: core: Reduce busy-wait looping

Keep busy-wait looping to a minimum while waiting for a regulator to
ramp-up to the target voltage. This follows the guidelines set forth
in Documentation/timers/timers-howto.txt and assumes that regulators
are never enabled in atomic context.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/core.c | 38 +++++++++++++++++++++++++++++++++-----
 1 file changed, 33 insertions(+), 5 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index ad154247bb90..5075ed1e94a6 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1740,11 +1740,39 @@ static int _regulator_do_enable(struct regulator_dev *rdev)
 	 * together.  */
 	trace_regulator_enable_delay(rdev_get_name(rdev));
 
-	if (delay >= 1000) {
-		mdelay(delay / 1000);
-		udelay(delay % 1000);
-	} else if (delay) {
-		udelay(delay);
+	/*
+	 * Delay for the requested amount of time as per the guidelines in:
+	 *
+	 *     Documentation/timers/timers-howto.txt
+	 *
+	 * The assumption here is that regulators will never be enabled in
+	 * atomic context and therefore sleeping functions can be used.
+	 */
+	if (delay) {
+		unsigned int ms = delay / 1000;
+		unsigned int us = delay % 1000;
+
+		if (ms > 0) {
+			/*
+			 * For small enough values, handle super-millisecond
+			 * delays in the usleep_range() call below.
+			 */
+			if (ms < 20)
+				us += ms * 1000;
+			else
+				msleep(ms);
+		}
+
+		/*
+		 * Give the scheduler some room to coalesce with any other
+		 * wakeup sources. For delays shorter than 10 us, don't even
+		 * bother setting up high-resolution timers and just busy-
+		 * loop.
+		 */
+		if (us >= 10)
+			usleep_range(us, us + 100);
+		else
+			udelay(us);
 	}
 
 	trace_regulator_enable_complete(rdev_get_name(rdev));
-- 
cgit 


From 67651b29ef15e5ef9897ed8cb9072222c4cf3432 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Fri, 27 Sep 2013 20:10:26 +0100
Subject: spi/s3c64xx: Flush FIFOs prior to cleaning up transfer

Ensure that the FIFOs are fully drained before we deassert /CS or do any
delays that have been requested in order to ensure that the behaviour
visible on the bus matches that which was requested by the caller.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-s3c64xx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 229c6b994be3..2e267ce9dc19 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -960,6 +960,8 @@ static int s3c64xx_spi_transfer_one_message(struct spi_master *master,
 			goto out;
 		}
 
+		flush_fifo(sdd);
+
 		if (xfer->delay_usecs)
 			udelay(xfer->delay_usecs);
 
@@ -972,8 +974,6 @@ static int s3c64xx_spi_transfer_one_message(struct spi_master *master,
 		}
 
 		msg->actual_length += xfer->len;
-
-		flush_fifo(sdd);
 	}
 
 out:
-- 
cgit 


From 8b06d5b8576d1df4122fa9ca40578ec7f094cb3e Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Fri, 27 Sep 2013 18:44:53 +0100
Subject: spi/s3c64xx: Check that clock enables succeed on runtime resume

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-s3c64xx.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 2e267ce9dc19..dd5ed13436e5 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -1524,9 +1524,17 @@ static int s3c64xx_spi_runtime_resume(struct device *dev)
 {
 	struct spi_master *master = dev_get_drvdata(dev);
 	struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
+	int ret;
 
-	clk_prepare_enable(sdd->src_clk);
-	clk_prepare_enable(sdd->clk);
+	ret = clk_prepare_enable(sdd->src_clk);
+	if (ret != 0)
+		return ret;
+
+	ret = clk_prepare_enable(sdd->clk);
+	if (ret != 0) {
+		clk_disable_unprepare(sdd->src_clk);
+		return ret;
+	}
 
 	return 0;
 }
-- 
cgit 


From 64d930ac116db25db814f76c31bfd4a7ea428f74 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Fri, 27 Sep 2013 18:45:23 +0100
Subject: spi/s3c64xx: Remove unused gpios field from driver data

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-s3c64xx.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index dd5ed13436e5..7f960db66763 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -205,7 +205,6 @@ struct s3c64xx_spi_driver_data {
 #endif
 	struct s3c64xx_spi_port_config	*port_conf;
 	unsigned int			port_id;
-	unsigned long			gpios[4];
 	bool				cs_gpio;
 };
 
-- 
cgit 


From dd97e26849c16f484191f056b6e080cc30ebe98b Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Fri, 27 Sep 2013 18:58:55 +0100
Subject: spi/s3c64xx: Use core cs_gpio field

Rather than using the driver custom platform data to store the chip select
GPIO use the cs_gpio field provided by the SPI core, supporting future
refectoring.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-s3c64xx.c | 24 ++++++++++--------------
 1 file changed, 10 insertions(+), 14 deletions(-)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 7f960db66763..43caeee8641a 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -558,22 +558,18 @@ static void enable_datapath(struct s3c64xx_spi_driver_data *sdd,
 static inline void enable_cs(struct s3c64xx_spi_driver_data *sdd,
 						struct spi_device *spi)
 {
-	struct s3c64xx_spi_csinfo *cs;
-
 	if (sdd->tgl_spi != NULL) { /* If last device toggled after mssg */
 		if (sdd->tgl_spi != spi) { /* if last mssg on diff device */
 			/* Deselect the last toggled device */
-			cs = sdd->tgl_spi->controller_data;
-			if (sdd->cs_gpio)
-				gpio_set_value(cs->line,
+			if (spi->cs_gpio >= 0)
+				gpio_set_value(spi->cs_gpio,
 					spi->mode & SPI_CS_HIGH ? 0 : 1);
 		}
 		sdd->tgl_spi = NULL;
 	}
 
-	cs = spi->controller_data;
-	if (sdd->cs_gpio)
-		gpio_set_value(cs->line, spi->mode & SPI_CS_HIGH ? 1 : 0);
+	if (spi->cs_gpio >= 0)
+		gpio_set_value(spi->cs_gpio, spi->mode & SPI_CS_HIGH ? 1 : 0);
 
 	/* Start the signals */
 	writel(0, sdd->regs + S3C64XX_SPI_SLAVE_SEL);
@@ -701,13 +697,11 @@ static int wait_for_xfer(struct s3c64xx_spi_driver_data *sdd,
 static inline void disable_cs(struct s3c64xx_spi_driver_data *sdd,
 						struct spi_device *spi)
 {
-	struct s3c64xx_spi_csinfo *cs = spi->controller_data;
-
 	if (sdd->tgl_spi == spi)
 		sdd->tgl_spi = NULL;
 
-	if (sdd->cs_gpio)
-		gpio_set_value(cs->line, spi->mode & SPI_CS_HIGH ? 0 : 1);
+	if (spi->cs_gpio >= 0)
+		gpio_set_value(spi->cs_gpio, spi->mode & SPI_CS_HIGH ? 0 : 1);
 
 	/* Quiese the signals */
 	writel(S3C64XX_SPI_SLAVE_SIG_INACT, sdd->regs + S3C64XX_SPI_SLAVE_SEL);
@@ -1070,6 +1064,8 @@ static int s3c64xx_spi_setup(struct spi_device *spi)
 					cs->line, err);
 				goto err_gpio_req;
 			}
+
+			spi->cs_gpio = cs->line;
 		}
 
 		spi_set_ctldata(spi, cs);
@@ -1139,8 +1135,8 @@ static void s3c64xx_spi_cleanup(struct spi_device *spi)
 	struct s3c64xx_spi_driver_data *sdd;
 
 	sdd = spi_master_get_devdata(spi->master);
-	if (cs && sdd->cs_gpio) {
-		gpio_free(cs->line);
+	if (spi->cs_gpio) {
+		gpio_free(spi->cs_gpio);
 		if (spi->dev.of_node)
 			kfree(cs);
 	}
-- 
cgit 


From 8c09daa1c963e2ab58029520dd2f3d54184d7258 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Fri, 27 Sep 2013 19:56:31 +0100
Subject: spi/s3c64xx: Factor transfer start out of enable/disable_cs()

The hardware level /CS handling is tied to the start of the data path so
is rolled into the same function as we use to manipulate GPIO /CS. In
order to support factoring out the /CS handling into the core separate the
two and explicitly start transfers separately to the /CS handling.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-s3c64xx.c | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 43caeee8641a..2ab96fb28d22 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -570,9 +570,6 @@ static inline void enable_cs(struct s3c64xx_spi_driver_data *sdd,
 
 	if (spi->cs_gpio >= 0)
 		gpio_set_value(spi->cs_gpio, spi->mode & SPI_CS_HIGH ? 1 : 0);
-
-	/* Start the signals */
-	writel(0, sdd->regs + S3C64XX_SPI_SLAVE_SEL);
 }
 
 static u32 s3c64xx_spi_wait_for_timeout(struct s3c64xx_spi_driver_data *sdd,
@@ -702,9 +699,6 @@ static inline void disable_cs(struct s3c64xx_spi_driver_data *sdd,
 
 	if (spi->cs_gpio >= 0)
 		gpio_set_value(spi->cs_gpio, spi->mode & SPI_CS_HIGH ? 0 : 1);
-
-	/* Quiese the signals */
-	writel(S3C64XX_SPI_SLAVE_SIG_INACT, sdd->regs + S3C64XX_SPI_SLAVE_SEL);
 }
 
 static void s3c64xx_spi_config(struct s3c64xx_spi_driver_data *sdd)
@@ -930,6 +924,9 @@ static int s3c64xx_spi_transfer_one_message(struct spi_master *master,
 		/* Slave Select */
 		enable_cs(sdd, spi);
 
+		/* Start the signals */
+		writel(0, sdd->regs + S3C64XX_SPI_SLAVE_SEL);
+
 		spin_unlock_irqrestore(&sdd->lock, flags);
 
 		status = wait_for_xfer(sdd, xfer, use_dma);
@@ -970,10 +967,14 @@ static int s3c64xx_spi_transfer_one_message(struct spi_master *master,
 	}
 
 out:
-	if (!cs_toggle || status)
+	if (!cs_toggle || status) {
+		/* Quiese the signals */
+		writel(S3C64XX_SPI_SLAVE_SIG_INACT,
+		       sdd->regs + S3C64XX_SPI_SLAVE_SEL);
 		disable_cs(sdd, spi);
-	else
+	} else {
 		sdd->tgl_spi = spi;
+	}
 
 	s3c64xx_spi_unmap_mssg(sdd, msg);
 
@@ -1112,11 +1113,13 @@ static int s3c64xx_spi_setup(struct spi_device *spi)
 	}
 
 	pm_runtime_put(&sdd->pdev->dev);
+	writel(S3C64XX_SPI_SLAVE_SIG_INACT, sdd->regs + S3C64XX_SPI_SLAVE_SEL);
 	disable_cs(sdd, spi);
 	return 0;
 
 setup_exit:
 	/* setup() returns with device de-selected */
+	writel(S3C64XX_SPI_SLAVE_SIG_INACT, sdd->regs + S3C64XX_SPI_SLAVE_SEL);
 	disable_cs(sdd, spi);
 
 	gpio_free(cs->line);
-- 
cgit 


From 0f5a751ace250097d3ad7835df7d376f21f44509 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Fri, 27 Sep 2013 20:38:01 +0100
Subject: spi/s3c64xx: Enable GPIO /CS prior to starting hardware

To help with bisection of future refactoring to share more of the code for
handling a spi_message pull the enabling of GPIO based /CS prior to all
the hardware setup for starting a transfer.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-s3c64xx.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 2ab96fb28d22..e6312322f66a 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -906,6 +906,9 @@ static int s3c64xx_spi_transfer_one_message(struct spi_master *master,
 			s3c64xx_spi_config(sdd);
 		}
 
+		/* Slave Select */
+		enable_cs(sdd, spi);
+
 		/* Polling method for xfers not bigger than FIFO capacity */
 		use_dma = 0;
 		if (!is_polling(sdd) &&
@@ -921,9 +924,6 @@ static int s3c64xx_spi_transfer_one_message(struct spi_master *master,
 
 		enable_datapath(sdd, spi, xfer, use_dma);
 
-		/* Slave Select */
-		enable_cs(sdd, spi);
-
 		/* Start the signals */
 		writel(0, sdd->regs + S3C64XX_SPI_SLAVE_SEL);
 
-- 
cgit 


From 04b772d2b819f0dda2163e3193fa7cd447a6245c Mon Sep 17 00:00:00 2001
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Date: Fri, 27 Sep 2013 17:18:13 -0400
Subject: xen/hvc: If we use xen_raw_printk let it also work on HVM guests.

The xen_raw_printk works great for debugging purposes. We use
for PV guests and we can also use it for HVM guests.

However, for HVM guests we have a fallback of using the 0xe9
port in case the hypervisor does not support an HVM guest of
using the console_io hypercall. As such lets use 0xe9 during
early bootup, and once the hyper-page is setup and if the
console_io hypercall is supported - use that. Otherwise we
will fallback to using the 0xe9 after early bootup.

We also alter the return value for dom0_write_console to return
an error value instead of zero. The HVC API has been supporting
returning error values for quite some time.

P.S.
To use (and to see the output in the Xen ring buffer) one has to build
the hypervisor with 'debug=y'.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
[v1: ifdef xen_cpuid_base as it is X86 specific]
---
 drivers/tty/hvc/hvc_xen.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index e61c36cbb866..6458c9f2ace0 100644
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drivers/tty/hvc/hvc_xen.c
@@ -183,7 +183,7 @@ static int dom0_write_console(uint32_t vtermno, const char *str, int len)
 {
 	int rc = HYPERVISOR_console_io(CONSOLEIO_write, len, (char *)str);
 	if (rc < 0)
-		return 0;
+		return rc;
 
 	return len;
 }
@@ -641,7 +641,22 @@ struct console xenboot_console = {
 
 void xen_raw_console_write(const char *str)
 {
-	dom0_write_console(0, str, strlen(str));
+	ssize_t len = strlen(str);
+	int rc = 0;
+
+	if (xen_domain()) {
+		rc = dom0_write_console(0, str, len);
+#ifdef CONFIG_X86
+		if (rc == -ENOSYS && xen_hvm_domain())
+			goto outb_print;
+
+	} else if (xen_cpuid_base()) {
+		int i;
+outb_print:
+		for (i = 0; i < len; i++)
+			outb(str[i], 0xe9);
+#endif
+	}
 }
 
 void xen_raw_printk(const char *fmt, ...)
-- 
cgit 


From 554b0004d0ec4fbd11e08668dfc400f211e8d5c5 Mon Sep 17 00:00:00 2001
From: Kevin Hilman <khilman@linaro.org>
Date: Mon, 16 Sep 2013 15:28:21 -0700
Subject: vtime: Add HAVE_VIRT_CPU_ACCOUNTING_GEN Kconfig

With VIRT_CPU_ACCOUNTING_GEN, cputime_t becomes 64-bit. In order
to use that feature, arch code should be audited to ensure there are no
races in concurrent read/write of cputime_t. For example,
reading/writing 64-bit cputime_t on some 32-bit arches may require
multiple accesses for low and high value parts, so proper locking
is needed to protect against concurrent accesses.

Therefore, add CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN which arches can
enable after they've been audited for potential races.

This option is automatically enabled on 64-bit platforms.

Feature requested by Frederic Weisbecker.

Signed-off-by: Kevin Hilman <khilman@linaro.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Arm Linux <linux-arm-kernel@lists.infradead.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
---
 arch/Kconfig        | 12 ++++++++++++
 init/Kconfig        |  1 +
 kernel/time/Kconfig |  1 +
 3 files changed, 14 insertions(+)

diff --git a/arch/Kconfig b/arch/Kconfig
index af2cc6eabcc7..185f8b007643 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -353,6 +353,18 @@ config HAVE_CONTEXT_TRACKING
 config HAVE_VIRT_CPU_ACCOUNTING
 	bool
 
+config HAVE_VIRT_CPU_ACCOUNTING_GEN
+	bool
+	default y if 64BIT
+	help
+	  With VIRT_CPU_ACCOUNTING_GEN, cputime_t becomes 64-bit.
+	  Before enabling this option, arch code must be audited
+	  to ensure there are no races in concurrent read/write of
+	  cputime_t. For example, reading/writing 64-bit cputime_t on
+	  some 32-bit arches may require multiple accesses, so proper
+	  locking is needed to protect against concurrent accesses.
+
+
 config HAVE_IRQ_TIME_ACCOUNTING
 	bool
 	help
diff --git a/init/Kconfig b/init/Kconfig
index 3ecd8a1178f1..68c1a0ed704d 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -355,6 +355,7 @@ config VIRT_CPU_ACCOUNTING_NATIVE
 config VIRT_CPU_ACCOUNTING_GEN
 	bool "Full dynticks CPU time accounting"
 	depends on HAVE_CONTEXT_TRACKING && 64BIT
+	depends on HAVE_VIRT_CPU_ACCOUNTING_GEN
 	select VIRT_CPU_ACCOUNTING
 	select CONTEXT_TRACKING
 	help
diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig
index 2b62fe86f9ec..f148475e5194 100644
--- a/kernel/time/Kconfig
+++ b/kernel/time/Kconfig
@@ -101,6 +101,7 @@ config NO_HZ_FULL
 	depends on HAVE_CONTEXT_TRACKING
 	# VIRT_CPU_ACCOUNTING_GEN dependency
 	depends on 64BIT
+	depends on HAVE_VIRT_CPU_ACCOUNTING_GEN
 	select NO_HZ_COMMON
 	select RCU_USER_QS
 	select RCU_NOCB_CPU
-- 
cgit 


From ff3fb2541246a83ce56c61d14df30b7a22e4302b Mon Sep 17 00:00:00 2001
From: Kevin Hilman <khilman@linaro.org>
Date: Mon, 16 Sep 2013 15:28:19 -0700
Subject: nohz: Drop generic vtime obsolete dependency on CONFIG_64BIT

The CONFIG_64BIT requirement on vtime can finally be removed
since we now depend on HAVE_VIRT_CPU_ACCOUNTING_GEN which
already takes care of the arch ability to handle nsecs based
cputime_t safely.

Signed-off-by: Kevin Hilman <khilman@linaro.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Arm Linux <linux-arm-kernel@lists.infradead.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
---
 init/Kconfig        | 2 +-
 kernel/time/Kconfig | 1 -
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/init/Kconfig b/init/Kconfig
index 68c1a0ed704d..841e79cb8bb3 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -354,7 +354,7 @@ config VIRT_CPU_ACCOUNTING_NATIVE
 
 config VIRT_CPU_ACCOUNTING_GEN
 	bool "Full dynticks CPU time accounting"
-	depends on HAVE_CONTEXT_TRACKING && 64BIT
+	depends on HAVE_CONTEXT_TRACKING
 	depends on HAVE_VIRT_CPU_ACCOUNTING_GEN
 	select VIRT_CPU_ACCOUNTING
 	select CONTEXT_TRACKING
diff --git a/kernel/time/Kconfig b/kernel/time/Kconfig
index f148475e5194..3ce6e8c5f3fc 100644
--- a/kernel/time/Kconfig
+++ b/kernel/time/Kconfig
@@ -100,7 +100,6 @@ config NO_HZ_FULL
 	# RCU_USER_QS dependency
 	depends on HAVE_CONTEXT_TRACKING
 	# VIRT_CPU_ACCOUNTING_GEN dependency
-	depends on 64BIT
 	depends on HAVE_VIRT_CPU_ACCOUNTING_GEN
 	select NO_HZ_COMMON
 	select RCU_USER_QS
-- 
cgit 


From 31c1fc8187158cb80ccd57c19e024c55af901797 Mon Sep 17 00:00:00 2001
From: Kevin Hilman <khilman@linaro.org>
Date: Mon, 16 Sep 2013 15:28:22 -0700
Subject: ARM: Kconfig: allow full nohz CPU accounting

With the 64-bit requirement removed from VIRT_CPU_ACCOUNTING_GEN,
allow ARM platforms to enable it.  Since VIRT_CPU_ACCOUNTING_GEN is a
dependency for full NO_HZ, this allows ARM platforms to enable full
NO_HZ as well.

Signed-off-by: Kevin Hilman <khilman@linaro.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Arm Linux <linux-arm-kernel@lists.infradead.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
---
 arch/arm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1ad6fb6c094d..323baf07fdce 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -54,6 +54,7 @@ config ARM
 	select HAVE_REGS_AND_STACK_ACCESS_API
 	select HAVE_SYSCALL_TRACEPOINTS
 	select HAVE_UID16
+	select HAVE_VIRT_CPU_ACCOUNTING_GEN
 	select IRQ_FORCED_THREADING
 	select KTIME_SCALAR
 	select MODULES_USE_ELF_REL
-- 
cgit 


From 627dfcc249e2eae07982272808ad560592e730e0 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Fri, 9 Aug 2013 22:27:10 +0200
Subject: irqchip: armada-370-xp: properly request resources

Instead of using of_iomap(), we now use of_address_to_resource(),
request_mem_region() and ioremap(). This allows the corresponding I/O
regions to be properly requested and visible in /proc/iomem.

The main motivation for this change is that the introduction of the
MSI support requires us to get the physical address of the main
interrupt controller registers, so we will need the corresponding
'struct resource' anyway.

We also take this opportunity to change a panic() to BUG_ON(), in
order to be consistent with the rest of the driver.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Daniel Price <daniel.price@gmail.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 drivers/irqchip/irq-armada-370-xp.c | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c
index bb328a366122..26adc741f764 100644
--- a/drivers/irqchip/irq-armada-370-xp.c
+++ b/drivers/irqchip/irq-armada-370-xp.c
@@ -248,12 +248,25 @@ armada_370_xp_handle_irq(struct pt_regs *regs)
 static int __init armada_370_xp_mpic_of_init(struct device_node *node,
 					     struct device_node *parent)
 {
+	struct resource main_int_res, per_cpu_int_res;
 	u32 control;
 
-	main_int_base = of_iomap(node, 0);
-	per_cpu_int_base = of_iomap(node, 1);
+	BUG_ON(of_address_to_resource(node, 0, &main_int_res));
+	BUG_ON(of_address_to_resource(node, 1, &per_cpu_int_res));
 
+	BUG_ON(!request_mem_region(main_int_res.start,
+				   resource_size(&main_int_res),
+				   node->full_name));
+	BUG_ON(!request_mem_region(per_cpu_int_res.start,
+				   resource_size(&per_cpu_int_res),
+				   node->full_name));
+
+	main_int_base = ioremap(main_int_res.start,
+				resource_size(&main_int_res));
 	BUG_ON(!main_int_base);
+
+	per_cpu_int_base = ioremap(per_cpu_int_res.start,
+				   resource_size(&per_cpu_int_res));
 	BUG_ON(!per_cpu_int_base);
 
 	control = readl(main_int_base + ARMADA_370_XP_INT_CONTROL);
@@ -262,8 +275,7 @@ static int __init armada_370_xp_mpic_of_init(struct device_node *node,
 		irq_domain_add_linear(node, (control >> 2) & 0x3ff,
 				&armada_370_xp_mpic_irq_ops, NULL);
 
-	if (!armada_370_xp_mpic_domain)
-		panic("Unable to add Armada_370_Xp MPIC irq domain (DT)\n");
+	BUG_ON(!armada_370_xp_mpic_domain);
 
 	irq_set_default_host(armada_370_xp_mpic_domain);
 
-- 
cgit 


From 31f614edb726fcc4d5aa0f2895fbdec9b04a3ca4 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Fri, 9 Aug 2013 22:27:11 +0200
Subject: irqchip: armada-370-xp: implement MSI support

This commit introduces the support for the MSI interrupts in the
armada-370-xp interrupt controller driver. It registers an MSI chip to
the MSI chip registry, which will be used by the Marvell PCIe host
controller driver.

The MSI interrupts use the 16 high doorbells, and are therefore
notified using IRQ1 of the main interrupt controller.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 .../devicetree/bindings/arm/armada-370-xp-mpic.txt |   3 +
 drivers/irqchip/irq-armada-370-xp.c                | 182 ++++++++++++++++++++-
 2 files changed, 184 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/arm/armada-370-xp-mpic.txt b/Documentation/devicetree/bindings/arm/armada-370-xp-mpic.txt
index 61df564c0d23..d74091a8a3bf 100644
--- a/Documentation/devicetree/bindings/arm/armada-370-xp-mpic.txt
+++ b/Documentation/devicetree/bindings/arm/armada-370-xp-mpic.txt
@@ -4,6 +4,8 @@ Marvell Armada 370 and Armada XP Interrupt Controller
 Required properties:
 - compatible: Should be "marvell,mpic"
 - interrupt-controller: Identifies the node as an interrupt controller.
+- msi-controller: Identifies the node as an PCI Message Signaled
+  Interrupt controller.
 - #interrupt-cells: The number of cells to define the interrupts. Should be 1.
   The cell is the IRQ number
 
@@ -24,6 +26,7 @@ Example:
               #address-cells = <1>;
               #size-cells = <1>;
               interrupt-controller;
+              msi-controller;
               reg = <0xd0020a00 0x1d0>,
                     <0xd0021070 0x58>;
         };
diff --git a/drivers/irqchip/irq-armada-370-xp.c b/drivers/irqchip/irq-armada-370-xp.c
index 26adc741f764..433cc8568dec 100644
--- a/drivers/irqchip/irq-armada-370-xp.c
+++ b/drivers/irqchip/irq-armada-370-xp.c
@@ -21,7 +21,10 @@
 #include <linux/io.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
+#include <linux/of_pci.h>
 #include <linux/irqdomain.h>
+#include <linux/slab.h>
+#include <linux/msi.h>
 #include <asm/mach/arch.h>
 #include <asm/exception.h>
 #include <asm/smp_plat.h>
@@ -51,12 +54,22 @@
 #define IPI_DOORBELL_START                      (0)
 #define IPI_DOORBELL_END                        (8)
 #define IPI_DOORBELL_MASK                       0xFF
+#define PCI_MSI_DOORBELL_START                  (16)
+#define PCI_MSI_DOORBELL_NR                     (16)
+#define PCI_MSI_DOORBELL_END                    (32)
+#define PCI_MSI_DOORBELL_MASK                   0xFFFF0000
 
 static DEFINE_RAW_SPINLOCK(irq_controller_lock);
 
 static void __iomem *per_cpu_int_base;
 static void __iomem *main_int_base;
 static struct irq_domain *armada_370_xp_mpic_domain;
+#ifdef CONFIG_PCI_MSI
+static struct irq_domain *armada_370_xp_msi_domain;
+static DECLARE_BITMAP(msi_used, PCI_MSI_DOORBELL_NR);
+static DEFINE_MUTEX(msi_used_lock);
+static phys_addr_t msi_doorbell_addr;
+#endif
 
 /*
  * In SMP mode:
@@ -87,6 +100,144 @@ static void armada_370_xp_irq_unmask(struct irq_data *d)
 				ARMADA_370_XP_INT_CLEAR_MASK_OFFS);
 }
 
+#ifdef CONFIG_PCI_MSI
+
+static int armada_370_xp_alloc_msi(void)
+{
+	int hwirq;
+
+	mutex_lock(&msi_used_lock);
+	hwirq = find_first_zero_bit(&msi_used, PCI_MSI_DOORBELL_NR);
+	if (hwirq >= PCI_MSI_DOORBELL_NR)
+		hwirq = -ENOSPC;
+	else
+		set_bit(hwirq, msi_used);
+	mutex_unlock(&msi_used_lock);
+
+	return hwirq;
+}
+
+static void armada_370_xp_free_msi(int hwirq)
+{
+	mutex_lock(&msi_used_lock);
+	if (!test_bit(hwirq, msi_used))
+		pr_err("trying to free unused MSI#%d\n", hwirq);
+	else
+		clear_bit(hwirq, msi_used);
+	mutex_unlock(&msi_used_lock);
+}
+
+static int armada_370_xp_setup_msi_irq(struct msi_chip *chip,
+				       struct pci_dev *pdev,
+				       struct msi_desc *desc)
+{
+	struct msi_msg msg;
+	irq_hw_number_t hwirq;
+	int virq;
+
+	hwirq = armada_370_xp_alloc_msi();
+	if (hwirq < 0)
+		return hwirq;
+
+	virq = irq_create_mapping(armada_370_xp_msi_domain, hwirq);
+	if (!virq) {
+		armada_370_xp_free_msi(hwirq);
+		return -EINVAL;
+	}
+
+	irq_set_msi_desc(virq, desc);
+
+	msg.address_lo = msi_doorbell_addr;
+	msg.address_hi = 0;
+	msg.data = 0xf00 | (hwirq + 16);
+
+	write_msi_msg(virq, &msg);
+	return 0;
+}
+
+static void armada_370_xp_teardown_msi_irq(struct msi_chip *chip,
+					   unsigned int irq)
+{
+	struct irq_data *d = irq_get_irq_data(irq);
+	irq_dispose_mapping(irq);
+	armada_370_xp_free_msi(d->hwirq);
+}
+
+static struct irq_chip armada_370_xp_msi_irq_chip = {
+	.name = "armada_370_xp_msi_irq",
+	.irq_enable = unmask_msi_irq,
+	.irq_disable = mask_msi_irq,
+	.irq_mask = mask_msi_irq,
+	.irq_unmask = unmask_msi_irq,
+};
+
+static int armada_370_xp_msi_map(struct irq_domain *domain, unsigned int virq,
+				 irq_hw_number_t hw)
+{
+	irq_set_chip_and_handler(virq, &armada_370_xp_msi_irq_chip,
+				 handle_simple_irq);
+	set_irq_flags(virq, IRQF_VALID);
+
+	return 0;
+}
+
+static const struct irq_domain_ops armada_370_xp_msi_irq_ops = {
+	.map = armada_370_xp_msi_map,
+};
+
+static int armada_370_xp_msi_init(struct device_node *node,
+				  phys_addr_t main_int_phys_base)
+{
+	struct msi_chip *msi_chip;
+	u32 reg;
+	int ret;
+
+	msi_doorbell_addr = main_int_phys_base +
+		ARMADA_370_XP_SW_TRIG_INT_OFFS;
+
+	msi_chip = kzalloc(sizeof(*msi_chip), GFP_KERNEL);
+	if (!msi_chip)
+		return -ENOMEM;
+
+	msi_chip->setup_irq = armada_370_xp_setup_msi_irq;
+	msi_chip->teardown_irq = armada_370_xp_teardown_msi_irq;
+	msi_chip->of_node = node;
+
+	armada_370_xp_msi_domain =
+		irq_domain_add_linear(NULL, PCI_MSI_DOORBELL_NR,
+				      &armada_370_xp_msi_irq_ops,
+				      NULL);
+	if (!armada_370_xp_msi_domain) {
+		kfree(msi_chip);
+		return -ENOMEM;
+	}
+
+	ret = of_pci_msi_chip_add(msi_chip);
+	if (ret < 0) {
+		irq_domain_remove(armada_370_xp_msi_domain);
+		kfree(msi_chip);
+		return ret;
+	}
+
+	reg = readl(per_cpu_int_base + ARMADA_370_XP_IN_DRBEL_MSK_OFFS)
+		| PCI_MSI_DOORBELL_MASK;
+
+	writel(reg, per_cpu_int_base +
+	       ARMADA_370_XP_IN_DRBEL_MSK_OFFS);
+
+	/* Unmask IPI interrupt */
+	writel(1, per_cpu_int_base + ARMADA_370_XP_INT_CLEAR_MASK_OFFS);
+
+	return 0;
+}
+#else
+static inline int armada_370_xp_msi_init(struct device_node *node,
+					 phys_addr_t main_int_phys_base)
+{
+	return 0;
+}
+#endif
+
 #ifdef CONFIG_SMP
 static int armada_xp_set_affinity(struct irq_data *d,
 				  const struct cpumask *mask_val, bool force)
@@ -214,12 +365,39 @@ armada_370_xp_handle_irq(struct pt_regs *regs)
 		if (irqnr > 1022)
 			break;
 
-		if (irqnr > 0) {
+		if (irqnr > 1) {
 			irqnr =	irq_find_mapping(armada_370_xp_mpic_domain,
 					irqnr);
 			handle_IRQ(irqnr, regs);
 			continue;
 		}
+
+#ifdef CONFIG_PCI_MSI
+		/* MSI handling */
+		if (irqnr == 1) {
+			u32 msimask, msinr;
+
+			msimask = readl_relaxed(per_cpu_int_base +
+						ARMADA_370_XP_IN_DRBEL_CAUSE_OFFS)
+				& PCI_MSI_DOORBELL_MASK;
+
+			writel(~PCI_MSI_DOORBELL_MASK, per_cpu_int_base +
+			       ARMADA_370_XP_IN_DRBEL_CAUSE_OFFS);
+
+			for (msinr = PCI_MSI_DOORBELL_START;
+			     msinr < PCI_MSI_DOORBELL_END; msinr++) {
+				int irq;
+
+				if (!(msimask & BIT(msinr)))
+					continue;
+
+				irq = irq_find_mapping(armada_370_xp_msi_domain,
+						       msinr - 16);
+				handle_IRQ(irq, regs);
+			}
+		}
+#endif
+
 #ifdef CONFIG_SMP
 		/* IPI Handling */
 		if (irqnr == 0) {
@@ -292,6 +470,8 @@ static int __init armada_370_xp_mpic_of_init(struct device_node *node,
 
 #endif
 
+	armada_370_xp_msi_init(node, main_int_res.start);
+
 	set_handle_irq(armada_370_xp_handle_irq);
 
 	return 0;
-- 
cgit 


From 5b4deb6526bdea3b10b3717623aae171509e925f Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Fri, 9 Aug 2013 22:27:14 +0200
Subject: PCI: mvebu: add support for MSI

This commit adds support for Message Signaled Interrupts in the
Marvell PCIe host controller. The work is very simple: it simply gets
a reference to the msi_chip associated to the PCIe controller thanks
to the msi-parent DT property, and stores this reference in the
pci_bus structure. This is enough to let the Linux PCI core use the
functions of msi_chip to setup and teardown MSIs.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Thierry Reding <thierry.reding@gmail.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 .../devicetree/bindings/pci/mvebu-pci.txt          |  3 +++
 drivers/pci/host/pci-mvebu.c                       | 26 ++++++++++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/Documentation/devicetree/bindings/pci/mvebu-pci.txt b/Documentation/devicetree/bindings/pci/mvebu-pci.txt
index 9556e2fedf6d..638673aec306 100644
--- a/Documentation/devicetree/bindings/pci/mvebu-pci.txt
+++ b/Documentation/devicetree/bindings/pci/mvebu-pci.txt
@@ -14,6 +14,8 @@ Mandatory properties:
 - ranges: ranges describing the MMIO registers to control the PCIe
   interfaces, and ranges describing the MBus windows needed to access
   the memory and I/O regions of each PCIe interface.
+- msi-parent: Link to the hardware entity that serves as the Message
+  Signaled Interrupt controller for this PCI controller.
 
 The ranges describing the MMIO registers have the following layout:
 
@@ -86,6 +88,7 @@ pcie-controller {
 	#size-cells = <2>;
 
 	bus-range = <0x00 0xff>;
+	msi-parent = <&mpic>;
 
 	ranges =
 	       <0x82000000 0 0x40000 MBUS_ID(0xf0, 0x01) 0x40000 0 0x00002000	/* Port 0.0 registers */
diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index 729d5a101d62..32ac56414465 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -11,6 +11,7 @@
 #include <linux/clk.h>
 #include <linux/module.h>
 #include <linux/mbus.h>
+#include <linux/msi.h>
 #include <linux/slab.h>
 #include <linux/platform_device.h>
 #include <linux/of_address.h>
@@ -103,6 +104,7 @@ struct mvebu_pcie_port;
 struct mvebu_pcie {
 	struct platform_device *pdev;
 	struct mvebu_pcie_port *ports;
+	struct msi_chip *msi;
 	struct resource io;
 	struct resource realio;
 	struct resource mem;
@@ -673,6 +675,12 @@ static struct pci_bus *mvebu_pcie_scan_bus(int nr, struct pci_sys_data *sys)
 	return bus;
 }
 
+void mvebu_pcie_add_bus(struct pci_bus *bus)
+{
+	struct mvebu_pcie *pcie = sys_to_pcie(bus->sysdata);
+	bus->msi = pcie->msi;
+}
+
 resource_size_t mvebu_pcie_align_resource(struct pci_dev *dev,
 					  const struct resource *res,
 					  resource_size_t start,
@@ -709,6 +717,7 @@ static void __init mvebu_pcie_enable(struct mvebu_pcie *pcie)
 	hw.map_irq        = mvebu_pcie_map_irq;
 	hw.ops            = &mvebu_pcie_ops;
 	hw.align_resource = mvebu_pcie_align_resource;
+	hw.add_bus        = mvebu_pcie_add_bus;
 
 	pci_common_init(&hw);
 }
@@ -777,6 +786,21 @@ static int mvebu_get_tgt_attr(struct device_node *np, int devfn,
 	return -ENOENT;
 }
 
+static void __init mvebu_pcie_msi_enable(struct mvebu_pcie *pcie)
+{
+	struct device_node *msi_node;
+
+	msi_node = of_parse_phandle(pcie->pdev->dev.of_node,
+				    "msi-parent", 0);
+	if (!msi_node)
+		return;
+
+	pcie->msi = of_pci_find_msi_chip_by_node(msi_node);
+
+	if (pcie->msi)
+		pcie->msi->dev = &pcie->pdev->dev;
+}
+
 static int __init mvebu_pcie_probe(struct platform_device *pdev)
 {
 	struct mvebu_pcie *pcie;
@@ -912,6 +936,8 @@ static int __init mvebu_pcie_probe(struct platform_device *pdev)
 		i++;
 	}
 
+	mvebu_pcie_msi_enable(pcie);
+
 	mvebu_pcie_enable(pcie);
 
 	return 0;
-- 
cgit 


From b42285f66f871a9898a0e79e2d74bc7e7a101995 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Tue, 13 Aug 2013 14:25:20 +0200
Subject: PCI: mvebu: move clock enable before register access

The clock passed to PCI controller found on MVEBU SoCs may come from a
clock gate. This requires the clock to be enabled before any registers
are accessed. Therefore, move the clock enable before register iomap to
ensure it is enabled.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 drivers/pci/host/pci-mvebu.c | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index 32ac56414465..5c327ce846dc 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -897,11 +897,23 @@ static int __init mvebu_pcie_probe(struct platform_device *pdev)
 			continue;
 		}
 
+		port->clk = of_clk_get_by_name(child, NULL);
+		if (IS_ERR(port->clk)) {
+			dev_err(&pdev->dev, "PCIe%d.%d: cannot get clock\n",
+			       port->port, port->lane);
+			continue;
+		}
+
+		ret = clk_prepare_enable(port->clk);
+		if (ret)
+			continue;
+
 		port->base = mvebu_pcie_map_registers(pdev, child, port);
 		if (IS_ERR(port->base)) {
 			dev_err(&pdev->dev, "PCIe%d.%d: cannot map registers\n",
 				port->port, port->lane);
 			port->base = NULL;
+			clk_disable_unprepare(port->clk);
 			continue;
 		}
 
@@ -917,22 +929,9 @@ static int __init mvebu_pcie_probe(struct platform_device *pdev)
 				 port->port, port->lane);
 		}
 
-		port->clk = of_clk_get_by_name(child, NULL);
-		if (IS_ERR(port->clk)) {
-			dev_err(&pdev->dev, "PCIe%d.%d: cannot get clock\n",
-			       port->port, port->lane);
-			iounmap(port->base);
-			port->haslink = 0;
-			continue;
-		}
-
 		port->dn = child;
-
-		clk_prepare_enable(port->clk);
 		spin_lock_init(&port->conf_lock);
-
 		mvebu_sw_pci_bridge_init(port);
-
 		i++;
 	}
 
-- 
cgit 


From bf09b6ae588f7567bcf31d9eff313d4d9fdc664e Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Tue, 13 Aug 2013 14:25:21 +0200
Subject: PCI: mvebu: increment nports only for registered ports

The number of ports is probed by counting the number of available child nodes.
Later on, the registration of a port can fail and cause a mismatch between
the ->nports counter and registered ports. This patch modifies the counting
strategy, to make ->nports represent the number of registered ports instead
of the number of available childs.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 drivers/pci/host/pci-mvebu.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index 5c327ce846dc..87aaed591c80 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -842,13 +842,14 @@ static int __init mvebu_pcie_probe(struct platform_device *pdev)
 		return ret;
 	}
 
+	i = 0;
 	for_each_child_of_node(pdev->dev.of_node, child) {
 		if (!of_device_is_available(child))
 			continue;
-		pcie->nports++;
+		i++;
 	}
 
-	pcie->ports = devm_kzalloc(&pdev->dev, pcie->nports *
+	pcie->ports = devm_kzalloc(&pdev->dev, i *
 				   sizeof(struct mvebu_pcie_port),
 				   GFP_KERNEL);
 	if (!pcie->ports)
@@ -935,8 +936,8 @@ static int __init mvebu_pcie_probe(struct platform_device *pdev)
 		i++;
 	}
 
+	pcie->nports = i;
 	mvebu_pcie_msi_enable(pcie);
-
 	mvebu_pcie_enable(pcie);
 
 	return 0;
-- 
cgit 


From e5615c30c1c921dda957638ddf9c9437fcb7bb36 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Tue, 13 Aug 2013 14:25:22 +0200
Subject: PCI: mvebu: remove subsys_initcall

This removes the subsys_initcall from the driver and converts it to
a normal platform_driver. Also, drvdata is set and a remove functions
is added to disable the clock and free resources. As pci driver removal
currently is not supported, set .suppress_bind_attrs to permit unbinding.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 drivers/pci/host/pci-mvebu.c | 33 ++++++++++++++-------------------
 1 file changed, 14 insertions(+), 19 deletions(-)

diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index 87aaed591c80..af23038a52ac 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -165,7 +165,7 @@ static void mvebu_pcie_set_local_dev_nr(struct mvebu_pcie_port *port, int nr)
  * BAR[0,2] -> disabled, BAR[1] -> covers all DRAM banks
  * WIN[0-3] -> DRAM bank[0-3]
  */
-static void __init mvebu_pcie_setup_wins(struct mvebu_pcie_port *port)
+static void mvebu_pcie_setup_wins(struct mvebu_pcie_port *port)
 {
 	const struct mbus_dram_target_info *dram;
 	u32 size;
@@ -217,7 +217,7 @@ static void __init mvebu_pcie_setup_wins(struct mvebu_pcie_port *port)
 	       port->base + PCIE_BAR_CTRL_OFF(1));
 }
 
-static void __init mvebu_pcie_setup_hw(struct mvebu_pcie_port *port)
+static void mvebu_pcie_setup_hw(struct mvebu_pcie_port *port)
 {
 	u16 cmd;
 	u32 mask;
@@ -628,7 +628,7 @@ static struct pci_ops mvebu_pcie_ops = {
 	.write = mvebu_pcie_wr_conf,
 };
 
-static int __init mvebu_pcie_setup(int nr, struct pci_sys_data *sys)
+static int mvebu_pcie_setup(int nr, struct pci_sys_data *sys)
 {
 	struct mvebu_pcie *pcie = sys_to_pcie(sys);
 	int i;
@@ -647,7 +647,7 @@ static int __init mvebu_pcie_setup(int nr, struct pci_sys_data *sys)
 	return 1;
 }
 
-static int __init mvebu_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+static int mvebu_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	struct of_irq oirq;
 	int ret;
@@ -704,7 +704,7 @@ resource_size_t mvebu_pcie_align_resource(struct pci_dev *dev,
 		return start;
 }
 
-static void __init mvebu_pcie_enable(struct mvebu_pcie *pcie)
+static void mvebu_pcie_enable(struct mvebu_pcie *pcie)
 {
 	struct hw_pci hw;
 
@@ -727,10 +727,8 @@ static void __init mvebu_pcie_enable(struct mvebu_pcie *pcie)
  * <...> property for one that matches the given port/lane. Once
  * found, maps it.
  */
-static void __iomem * __init
-mvebu_pcie_map_registers(struct platform_device *pdev,
-			 struct device_node *np,
-			 struct mvebu_pcie_port *port)
+static void __iomem *mvebu_pcie_map_registers(struct platform_device *pdev,
+		      struct device_node *np, struct mvebu_pcie_port *port)
 {
 	struct resource regs;
 	int ret = 0;
@@ -786,7 +784,7 @@ static int mvebu_get_tgt_attr(struct device_node *np, int devfn,
 	return -ENOENT;
 }
 
-static void __init mvebu_pcie_msi_enable(struct mvebu_pcie *pcie)
+static void mvebu_pcie_msi_enable(struct mvebu_pcie *pcie)
 {
 	struct device_node *msi_node;
 
@@ -801,7 +799,7 @@ static void __init mvebu_pcie_msi_enable(struct mvebu_pcie *pcie)
 		pcie->msi->dev = &pcie->pdev->dev;
 }
 
-static int __init mvebu_pcie_probe(struct platform_device *pdev)
+static int mvebu_pcie_probe(struct platform_device *pdev)
 {
 	struct mvebu_pcie *pcie;
 	struct device_node *np = pdev->dev.of_node;
@@ -814,6 +812,7 @@ static int __init mvebu_pcie_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	pcie->pdev = pdev;
+	platform_set_drvdata(pdev, pcie);
 
 	/* Get the PCIe memory and I/O aperture */
 	mvebu_mbus_get_pcie_mem_aperture(&pcie->mem);
@@ -957,16 +956,12 @@ static struct platform_driver mvebu_pcie_driver = {
 		.name = "mvebu-pcie",
 		.of_match_table =
 		   of_match_ptr(mvebu_pcie_of_match_table),
+		/* driver unloading/unbinding currently not supported */
+		.suppress_bind_attrs = true,
 	},
+	.probe = mvebu_pcie_probe,
 };
-
-static int __init mvebu_pcie_init(void)
-{
-	return platform_driver_probe(&mvebu_pcie_driver,
-				     mvebu_pcie_probe);
-}
-
-subsys_initcall(mvebu_pcie_init);
+module_platform_driver(mvebu_pcie_driver);
 
 MODULE_AUTHOR("Thomas Petazzoni <thomas.petazzoni@free-electrons.com>");
 MODULE_DESCRIPTION("Marvell EBU PCIe driver");
-- 
cgit 


From 52ba992e201f47b878019f268391aa0e27592906 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Tue, 13 Aug 2013 14:25:23 +0200
Subject: PCI: mvebu: add support for reset on GPIO

This patch adds a check for DT passed reset-gpios property and deasserts/
asserts reset pin on probe/remove with configurable delay. Corresponding
binding documentation is also updated.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 .../devicetree/bindings/pci/mvebu-pci.txt          |  6 ++++
 drivers/pci/host/pci-mvebu.c                       | 33 +++++++++++++++++++++-
 2 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pci/mvebu-pci.txt b/Documentation/devicetree/bindings/pci/mvebu-pci.txt
index 638673aec306..8bb3245e1946 100644
--- a/Documentation/devicetree/bindings/pci/mvebu-pci.txt
+++ b/Documentation/devicetree/bindings/pci/mvebu-pci.txt
@@ -76,6 +76,8 @@ and the following optional properties:
 - marvell,pcie-lane: the physical PCIe lane number, for ports having
   multiple lanes. If this property is not found, we assume that the
   value is 0.
+- reset-gpios: optional gpio to PERST#
+- reset-delay-us: delay in us to wait after reset de-assertion
 
 Example:
 
@@ -138,6 +140,10 @@ pcie-controller {
 		interrupt-map = <0 0 0 0 &mpic 58>;
 		marvell,pcie-port = <0>;
 		marvell,pcie-lane = <0>;
+		/* low-active PERST# reset on GPIO 25 */
+		reset-gpios = <&gpio0 25 1>;
+		/* wait 20ms for device settle after reset deassertion */
+		reset-delay-us = <20000>;
 		clocks = <&gateclk 5>;
 		status = "disabled";
 	};
diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index af23038a52ac..2d5f414bc45a 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -9,14 +9,17 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
 #include <linux/module.h>
 #include <linux/mbus.h>
 #include <linux/msi.h>
 #include <linux/slab.h>
 #include <linux/platform_device.h>
 #include <linux/of_address.h>
-#include <linux/of_pci.h>
 #include <linux/of_irq.h>
+#include <linux/of_gpio.h>
+#include <linux/of_pci.h>
 #include <linux/of_platform.h>
 
 /*
@@ -126,6 +129,9 @@ struct mvebu_pcie_port {
 	unsigned int io_target;
 	unsigned int io_attr;
 	struct clk *clk;
+	int reset_gpio;
+	int reset_active_low;
+	char *reset_name;
 	struct mvebu_sw_pci_bridge bridge;
 	struct device_node *dn;
 	struct mvebu_pcie *pcie;
@@ -857,6 +863,7 @@ static int mvebu_pcie_probe(struct platform_device *pdev)
 	i = 0;
 	for_each_child_of_node(pdev->dev.of_node, child) {
 		struct mvebu_pcie_port *port = &pcie->ports[i];
+		enum of_gpio_flags flags;
 
 		if (!of_device_is_available(child))
 			continue;
@@ -897,6 +904,30 @@ static int mvebu_pcie_probe(struct platform_device *pdev)
 			continue;
 		}
 
+		port->reset_gpio = of_get_named_gpio_flags(child,
+						   "reset-gpios", 0, &flags);
+		if (gpio_is_valid(port->reset_gpio)) {
+			u32 reset_udelay = 20000;
+
+			port->reset_active_low = flags & OF_GPIO_ACTIVE_LOW;
+			port->reset_name = kasprintf(GFP_KERNEL,
+				     "pcie%d.%d-reset", port->port, port->lane);
+			of_property_read_u32(child, "reset-delay-us",
+					     &reset_udelay);
+
+			ret = devm_gpio_request_one(&pdev->dev,
+			    port->reset_gpio, GPIOF_DIR_OUT, port->reset_name);
+			if (ret) {
+				if (ret == -EPROBE_DEFER)
+					return ret;
+				continue;
+			}
+
+			gpio_set_value(port->reset_gpio,
+				       (port->reset_active_low) ? 1 : 0);
+			msleep(reset_udelay/1000);
+		}
+
 		port->clk = of_clk_get_by_name(child, NULL);
 		if (IS_ERR(port->clk)) {
 			dev_err(&pdev->dev, "PCIe%d.%d: cannot get clock\n",
-- 
cgit 


From cc54ccd9a6966708c00ebd8a08acc3e627a432c5 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Tue, 13 Aug 2013 14:25:24 +0200
Subject: PCI: mvebu: add support for Marvell Dove SoCs

This patch adds a compatible for the PCIe controller found on Marvell
Dove SoCs. Binding documentation and Kconfig entry are also updated.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 Documentation/devicetree/bindings/pci/mvebu-pci.txt | 1 +
 drivers/pci/host/Kconfig                            | 2 +-
 drivers/pci/host/pci-mvebu.c                        | 1 +
 3 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pci/mvebu-pci.txt b/Documentation/devicetree/bindings/pci/mvebu-pci.txt
index 8bb3245e1946..08c716b2c6b6 100644
--- a/Documentation/devicetree/bindings/pci/mvebu-pci.txt
+++ b/Documentation/devicetree/bindings/pci/mvebu-pci.txt
@@ -5,6 +5,7 @@ Mandatory properties:
 - compatible: one of the following values:
     marvell,armada-370-pcie
     marvell,armada-xp-pcie
+    marvell,dove-pcie
     marvell,kirkwood-pcie
 - #address-cells, set to <3>
 - #size-cells, set to <2>
diff --git a/drivers/pci/host/Kconfig b/drivers/pci/host/Kconfig
index 3d9504811126..43186feb4294 100644
--- a/drivers/pci/host/Kconfig
+++ b/drivers/pci/host/Kconfig
@@ -3,7 +3,7 @@ menu "PCI host controller drivers"
 
 config PCI_MVEBU
 	bool "Marvell EBU PCIe controller"
-	depends on ARCH_MVEBU || ARCH_KIRKWOOD
+	depends on ARCH_MVEBU || ARCH_DOVE || ARCH_KIRKWOOD
 	depends on OF
 
 config PCIE_DW
diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index 2d5f414bc45a..77f8a7c58597 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -976,6 +976,7 @@ static int mvebu_pcie_probe(struct platform_device *pdev)
 static const struct of_device_id mvebu_pcie_of_match_table[] = {
 	{ .compatible = "marvell,armada-xp-pcie", },
 	{ .compatible = "marvell,armada-370-pcie", },
+	{ .compatible = "marvell,dove-pcie", },
 	{ .compatible = "marvell,kirkwood-pcie", },
 	{},
 };
-- 
cgit 


From 86178f862defd293c7ac3eb2073759a52ba2518c Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Fri, 9 Aug 2013 22:27:13 +0200
Subject: ARM: mvebu: the MPIC now provides MSI controller features

Adds the 'msi-controller' property to the main interrupt controller
Device Tree node, to indicate that it can now behave as a MSI
controller.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Thierry Reding <thierry.reding@gmail.com>
Tested-by: Daniel Price <daniel.price@gmail.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/armada-370-xp.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/armada-370-xp.dtsi b/arch/arm/boot/dts/armada-370-xp.dtsi
index 57dbc5dbc360..534e1be80df2 100644
--- a/arch/arm/boot/dts/armada-370-xp.dtsi
+++ b/arch/arm/boot/dts/armada-370-xp.dtsi
@@ -113,6 +113,7 @@
 				#interrupt-cells = <1>;
 				#size-cells = <1>;
 				interrupt-controller;
+				msi-controller;
 			};
 
 			coherency-fabric@20200 {
-- 
cgit 


From d4fa99417a0701c7aebe2d53ff65b3048985b310 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Fri, 9 Aug 2013 22:27:15 +0200
Subject: ARM: mvebu: link PCIe controllers to the MSI controller

This commit adjusts the Armada 370 and Armada XP PCIe controllers
Device Tree informations to reference their MSI controller. In the
case of this platform, the MSI controller is implemented by the MPIC.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Daniel Price <daniel.price@gmail.com>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/armada-370.dtsi        | 1 +
 arch/arm/boot/dts/armada-xp-mv78230.dtsi | 1 +
 arch/arm/boot/dts/armada-xp-mv78260.dtsi | 1 +
 arch/arm/boot/dts/armada-xp-mv78460.dtsi | 1 +
 4 files changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/armada-370.dtsi b/arch/arm/boot/dts/armada-370.dtsi
index b8d376170959..7a4b82e71aaf 100644
--- a/arch/arm/boot/dts/armada-370.dtsi
+++ b/arch/arm/boot/dts/armada-370.dtsi
@@ -44,6 +44,7 @@
 			#address-cells = <3>;
 			#size-cells = <2>;
 
+			msi-parent = <&mpic>;
 			bus-range = <0x00 0xff>;
 
 			ranges =
diff --git a/arch/arm/boot/dts/armada-xp-mv78230.dtsi b/arch/arm/boot/dts/armada-xp-mv78230.dtsi
index 0358a33cba48..3f5e6121c730 100644
--- a/arch/arm/boot/dts/armada-xp-mv78230.dtsi
+++ b/arch/arm/boot/dts/armada-xp-mv78230.dtsi
@@ -57,6 +57,7 @@
 			#address-cells = <3>;
 			#size-cells = <2>;
 
+			msi-parent = <&mpic>;
 			bus-range = <0x00 0xff>;
 
 			ranges =
diff --git a/arch/arm/boot/dts/armada-xp-mv78260.dtsi b/arch/arm/boot/dts/armada-xp-mv78260.dtsi
index 0e82c5062243..3e9fd1353f89 100644
--- a/arch/arm/boot/dts/armada-xp-mv78260.dtsi
+++ b/arch/arm/boot/dts/armada-xp-mv78260.dtsi
@@ -58,6 +58,7 @@
 			#address-cells = <3>;
 			#size-cells = <2>;
 
+			msi-parent = <&mpic>;
 			bus-range = <0x00 0xff>;
 
 			ranges =
diff --git a/arch/arm/boot/dts/armada-xp-mv78460.dtsi b/arch/arm/boot/dts/armada-xp-mv78460.dtsi
index e82c1b80af17..31ba6d8fbadf 100644
--- a/arch/arm/boot/dts/armada-xp-mv78460.dtsi
+++ b/arch/arm/boot/dts/armada-xp-mv78460.dtsi
@@ -74,6 +74,7 @@
 			#address-cells = <3>;
 			#size-cells = <2>;
 
+			msi-parent = <&mpic>;
 			bus-range = <0x00 0xff>;
 
 			ranges =
-- 
cgit 


From fbd99d51a7a7fd8344bf285f64200d72d4e6d2eb Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Mon, 29 Jul 2013 14:31:50 +0200
Subject: ARM: dove: use preprocessor on device tree files

This coverts Dove DT board files to preprocessor includes instead
of dtc includes.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/dove-cm-a510.dts | 2 +-
 arch/arm/boot/dts/dove-cubox.dts   | 2 +-
 arch/arm/boot/dts/dove-d2plug.dts  | 2 +-
 arch/arm/boot/dts/dove-dove-db.dts | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/dove-cm-a510.dts b/arch/arm/boot/dts/dove-cm-a510.dts
index 61a8062e56de..50c0d6904497 100644
--- a/arch/arm/boot/dts/dove-cm-a510.dts
+++ b/arch/arm/boot/dts/dove-cm-a510.dts
@@ -1,6 +1,6 @@
 /dts-v1/;
 
-/include/ "dove.dtsi"
+#include "dove.dtsi"
 
 / {
 	model = "Compulab CM-A510";
diff --git a/arch/arm/boot/dts/dove-cubox.dts b/arch/arm/boot/dts/dove-cubox.dts
index 022646ef4b38..4af59b6dce0f 100644
--- a/arch/arm/boot/dts/dove-cubox.dts
+++ b/arch/arm/boot/dts/dove-cubox.dts
@@ -1,6 +1,6 @@
 /dts-v1/;
 
-/include/ "dove.dtsi"
+#include "dove.dtsi"
 
 / {
 	model = "SolidRun CuBox";
diff --git a/arch/arm/boot/dts/dove-d2plug.dts b/arch/arm/boot/dts/dove-d2plug.dts
index e2222ce94f2f..c11d3636c8e5 100644
--- a/arch/arm/boot/dts/dove-d2plug.dts
+++ b/arch/arm/boot/dts/dove-d2plug.dts
@@ -1,6 +1,6 @@
 /dts-v1/;
 
-/include/ "dove.dtsi"
+#include "dove.dtsi"
 
 / {
 	model = "Globalscale D2Plug";
diff --git a/arch/arm/boot/dts/dove-dove-db.dts b/arch/arm/boot/dts/dove-dove-db.dts
index e5a920beab45..bb725dca3a10 100644
--- a/arch/arm/boot/dts/dove-dove-db.dts
+++ b/arch/arm/boot/dts/dove-dove-db.dts
@@ -1,6 +1,6 @@
 /dts-v1/;
 
-/include/ "dove.dtsi"
+#include "dove.dtsi"
 
 / {
 	model = "Marvell DB-MV88AP510-BP Development Board";
-- 
cgit 


From 6953af7749cd023770b948865cb8efa738cc6473 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Mon, 29 Jul 2013 14:31:51 +0200
Subject: ARM: dove: add MBUS_ID macro to Dove DT

This adds a macro used for defining address window's target ID and
attribute cells for the MBus ranges entry.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/dove.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi
index cc279166646f..0b4b8ec966c4 100644
--- a/arch/arm/boot/dts/dove.dtsi
+++ b/arch/arm/boot/dts/dove.dtsi
@@ -1,5 +1,7 @@
 /include/ "skeleton.dtsi"
 
+#define MBUS_ID(target,attributes) (((target) << 24) | ((attributes) << 16))
+
 / {
 	compatible = "marvell,dove";
 	model = "Marvell Armada 88AP510 SoC";
-- 
cgit 


From 960ee4e7967f0d0bdebae439e79f94cec78e23f7 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Mon, 29 Jul 2013 14:31:52 +0200
Subject: ARM: dove: add MBus DT node

This adds a MBus node including ranges and pcie apertures required later.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/dove.dtsi | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi
index 0b4b8ec966c4..d312290edfc1 100644
--- a/arch/arm/boot/dts/dove.dtsi
+++ b/arch/arm/boot/dts/dove.dtsi
@@ -29,6 +29,21 @@
 		marvell,tauros2-cache-features = <0>;
 	};
 
+	mbus {
+		compatible = "marvell,dove-mbus", "marvell,mbus", "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <1>;
+		controller = <&mbusc>;
+		pcie-mem-aperture = <0xe0000000 0x10000000>; /* 256M MEM space */
+		pcie-io-aperture  = <0xf2000000 0x00200000>; /*   2M I/O space */
+
+		ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x0100000   /* MBUS regs  1M */
+			  MBUS_ID(0xf0, 0x02) 0 0xf1800000 0x1000000   /* AXI  regs 16M */
+			  MBUS_ID(0x01, 0xfd) 0 0xf8000000 0x8000000   /* BootROM  128M */
+			  MBUS_ID(0x03, 0x01) 0 0xc8000000 0x0100000   /* CESA SRAM  1M */
+			  MBUS_ID(0x0d, 0x00) 0 0xf0000000 0x0100000>; /* PMU  SRAM  1M */
+	};
+
 	soc@f1000000 {
 		compatible = "simple-bus";
 		#address-cells = <1>;
@@ -44,6 +59,11 @@
 		          0xf2100000 0xf2100000 0x0100000   /* PCIe0 I/O   1M */
 		          0xf8000000 0xf8000000 0x8000000>; /* BootROM   128M */
 
+		mbusc: mbus-ctrl@20000 {
+			compatible = "marvell,mbus-controller";
+			reg = <0x20000 0x80>, <0x800100 0x8>;
+		};
+
 		timer: timer@20300 {
 			compatible = "marvell,orion-timer";
 			reg = <0x20300 0x20>;
-- 
cgit 


From 0ad44659355d5c2efdd5b6c1de165ca31cb34fa8 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Mon, 29 Jul 2013 14:31:53 +0200
Subject: ARM: dove: relocate internal registers device nodes

With mbus node in place, now relocate all internal device nodes
to internal-regs node with proper address ranges.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/dove.dtsi | 955 ++++++++++++++++++++++----------------------
 1 file changed, 474 insertions(+), 481 deletions(-)

diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi
index d312290edfc1..d42b323e7593 100644
--- a/arch/arm/boot/dts/dove.dtsi
+++ b/arch/arm/boot/dts/dove.dtsi
@@ -5,6 +5,7 @@
 / {
 	compatible = "marvell,dove";
 	model = "Marvell Armada 88AP510 SoC";
+	interrupt-parent = <&intc>;
 
 	aliases {
 		gpio0 = &gpio0;
@@ -42,489 +43,481 @@
 			  MBUS_ID(0x01, 0xfd) 0 0xf8000000 0x8000000   /* BootROM  128M */
 			  MBUS_ID(0x03, 0x01) 0 0xc8000000 0x0100000   /* CESA SRAM  1M */
 			  MBUS_ID(0x0d, 0x00) 0 0xf0000000 0x0100000>; /* PMU  SRAM  1M */
-	};
-
-	soc@f1000000 {
-		compatible = "simple-bus";
-		#address-cells = <1>;
-		#size-cells = <1>;
-		interrupt-parent = <&intc>;
-
-		ranges = <0xc8000000 0xc8000000 0x0100000   /* CESA SRAM   1M */
-		          0xe0000000 0xe0000000 0x8000000   /* PCIe0 Mem 128M */
-		          0xe8000000 0xe8000000 0x8000000   /* PCIe1 Mem 128M */
-		          0xf0000000 0xf0000000 0x0100000   /* ScratchPad  1M */
-		          0x00000000 0xf1000000 0x1000000   /* SB/NB regs 16M */
-		          0xf2000000 0xf2000000 0x0100000   /* PCIe0 I/O   1M */
-		          0xf2100000 0xf2100000 0x0100000   /* PCIe0 I/O   1M */
-		          0xf8000000 0xf8000000 0x8000000>; /* BootROM   128M */
-
-		mbusc: mbus-ctrl@20000 {
-			compatible = "marvell,mbus-controller";
-			reg = <0x20000 0x80>, <0x800100 0x8>;
-		};
-
-		timer: timer@20300 {
-			compatible = "marvell,orion-timer";
-			reg = <0x20300 0x20>;
-			interrupt-parent = <&bridge_intc>;
-			interrupts = <1>, <2>;
-			clocks = <&core_clk 0>;
-		};
-
-		intc: main-interrupt-ctrl@20200 {
-			compatible = "marvell,orion-intc";
-			interrupt-controller;
-			#interrupt-cells = <1>;
-			reg = <0x20200 0x10>, <0x20210 0x10>;
-		};
-
-		bridge_intc: bridge-interrupt-ctrl@20110 {
-			compatible = "marvell,orion-bridge-intc";
-			interrupt-controller;
-			#interrupt-cells = <1>;
-			reg = <0x20110 0x8>;
-			interrupts = <0>;
-			marvell,#interrupts = <5>;
-		};
-
-		core_clk: core-clocks@d0214 {
-			compatible = "marvell,dove-core-clock";
-			reg = <0xd0214 0x4>;
-			#clock-cells = <1>;
-		};
-
-		gate_clk: clock-gating-ctrl@d0038 {
-			compatible = "marvell,dove-gating-clock";
-			reg = <0xd0038 0x4>;
-			clocks = <&core_clk 0>;
-			#clock-cells = <1>;
-		};
-
-		thermal: thermal-diode@d001c {
-			compatible = "marvell,dove-thermal";
-			reg = <0xd001c 0x0c>, <0xd005c 0x08>;
-		};
-
-		uart0: serial@12000 {
-			compatible = "ns16550a";
-			reg = <0x12000 0x100>;
-			reg-shift = <2>;
-			interrupts = <7>;
-			clocks = <&core_clk 0>;
-			status = "disabled";
-		};
-
-		uart1: serial@12100 {
-			compatible = "ns16550a";
-			reg = <0x12100 0x100>;
-			reg-shift = <2>;
-			interrupts = <8>;
-			clocks = <&core_clk 0>;
-			pinctrl-0 = <&pmx_uart1>;
-			pinctrl-names = "default";
-			status = "disabled";
-		};
-
-		uart2: serial@12200 {
-			compatible = "ns16550a";
-			reg = <0x12000 0x100>;
-			reg-shift = <2>;
-			interrupts = <9>;
-			clocks = <&core_clk 0>;
-			status = "disabled";
-		};
-
-		uart3: serial@12300 {
-			compatible = "ns16550a";
-			reg = <0x12100 0x100>;
-			reg-shift = <2>;
-			interrupts = <10>;
-			clocks = <&core_clk 0>;
-			status = "disabled";
-		};
-
-		gpio0: gpio-ctrl@d0400 {
-			compatible = "marvell,orion-gpio";
-			#gpio-cells = <2>;
-			gpio-controller;
-			reg = <0xd0400 0x20>;
-			ngpios = <32>;
-			interrupt-controller;
-			#interrupt-cells = <2>;
-			interrupts = <12>, <13>, <14>, <60>;
-		};
-
-		gpio1: gpio-ctrl@d0420 {
-			compatible = "marvell,orion-gpio";
-			#gpio-cells = <2>;
-			gpio-controller;
-			reg = <0xd0420 0x20>;
-			ngpios = <32>;
-			interrupt-controller;
-			#interrupt-cells = <2>;
-			interrupts = <61>;
-		};
-
-		gpio2: gpio-ctrl@e8400 {
-			compatible = "marvell,orion-gpio";
-			#gpio-cells = <2>;
-			gpio-controller;
-			reg = <0xe8400 0x0c>;
-			ngpios = <8>;
-		};
-
-		pinctrl: pin-ctrl@d0200 {
-			compatible = "marvell,dove-pinctrl";
-			reg = <0xd0200 0x10>;
-			clocks = <&gate_clk 22>;
-
-			pmx_gpio_0: pmx-gpio-0 {
-				marvell,pins = "mpp0";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_1: pmx-gpio-1 {
-				marvell,pins = "mpp1";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_2: pmx-gpio-2 {
-				marvell,pins = "mpp2";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_3: pmx-gpio-3 {
-				marvell,pins = "mpp3";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_4: pmx-gpio-4 {
-				marvell,pins = "mpp4";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_5: pmx-gpio-5 {
-				marvell,pins = "mpp5";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_6: pmx-gpio-6 {
-				marvell,pins = "mpp6";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_7: pmx-gpio-7 {
-				marvell,pins = "mpp7";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_8: pmx-gpio-8 {
-				marvell,pins = "mpp8";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_9: pmx-gpio-9 {
-				marvell,pins = "mpp9";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_10: pmx-gpio-10 {
-				marvell,pins = "mpp10";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_11: pmx-gpio-11 {
-				marvell,pins = "mpp11";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_12: pmx-gpio-12 {
-				marvell,pins = "mpp12";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_13: pmx-gpio-13 {
-				marvell,pins = "mpp13";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_14: pmx-gpio-14 {
-				marvell,pins = "mpp14";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_15: pmx-gpio-15 {
-				marvell,pins = "mpp15";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_16: pmx-gpio-16 {
-				marvell,pins = "mpp16";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_17: pmx-gpio-17 {
-				marvell,pins = "mpp17";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_18: pmx-gpio-18 {
-				marvell,pins = "mpp18";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_19: pmx-gpio-19 {
-				marvell,pins = "mpp19";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_20: pmx-gpio-20 {
-				marvell,pins = "mpp20";
-				marvell,function = "gpio";
-			};
-
-			pmx_gpio_21: pmx-gpio-21 {
-				marvell,pins = "mpp21";
-				marvell,function = "gpio";
-			};
-
-			pmx_camera: pmx-camera {
-				marvell,pins = "mpp_camera";
-				marvell,function = "camera";
-			};
-
-			pmx_camera_gpio: pmx-camera-gpio {
-				marvell,pins = "mpp_camera";
-				marvell,function = "gpio";
-			};
-
-			pmx_sdio0: pmx-sdio0 {
-				marvell,pins = "mpp_sdio0";
-				marvell,function = "sdio0";
-			};
-
-			pmx_sdio0_gpio: pmx-sdio0-gpio {
-				marvell,pins = "mpp_sdio0";
-				marvell,function = "gpio";
-			};
-
-			pmx_sdio1: pmx-sdio1 {
-				marvell,pins = "mpp_sdio1";
-				marvell,function = "sdio1";
-			};
-
-			pmx_sdio1_gpio: pmx-sdio1-gpio {
-				marvell,pins = "mpp_sdio1";
-				marvell,function = "gpio";
-			};
-
-			pmx_audio1_gpio: pmx-audio1-gpio {
-				marvell,pins = "mpp_audio1";
-				marvell,function = "gpio";
-			};
-
-			pmx_spi0: pmx-spi0 {
-				marvell,pins = "mpp_spi0";
-				marvell,function = "spi0";
-			};
-
-			pmx_spi0_gpio: pmx-spi0-gpio {
-				marvell,pins = "mpp_spi0";
-				marvell,function = "gpio";
-			};
-
-			pmx_uart1: pmx-uart1 {
-				marvell,pins = "mpp_uart1";
-				marvell,function = "uart1";
-			};
-
-			pmx_uart1_gpio: pmx-uart1-gpio {
-				marvell,pins = "mpp_uart1";
-				marvell,function = "gpio";
-			};
-
-			pmx_nand: pmx-nand {
-				marvell,pins = "mpp_nand";
-				marvell,function = "nand";
-			};
-
-			pmx_nand_gpo: pmx-nand-gpo {
-				marvell,pins = "mpp_nand";
-				marvell,function = "gpo";
-			};
-		};
-
-		spi0: spi-ctrl@10600 {
-			compatible = "marvell,orion-spi";
-			#address-cells = <1>;
-			#size-cells = <0>;
-			cell-index = <0>;
-			interrupts = <6>;
-			reg = <0x10600 0x28>;
-			clocks = <&core_clk 0>;
-			pinctrl-0 = <&pmx_spi0>;
-			pinctrl-names = "default";
-			status = "disabled";
-		};
-
-		spi1: spi-ctrl@14600 {
-			compatible = "marvell,orion-spi";
-			#address-cells = <1>;
-			#size-cells = <0>;
-			cell-index = <1>;
-			interrupts = <5>;
-			reg = <0x14600 0x28>;
-			clocks = <&core_clk 0>;
-			status = "disabled";
-		};
-
-		i2c0: i2c-ctrl@11000 {
-			compatible = "marvell,mv64xxx-i2c";
-			reg = <0x11000 0x20>;
-			#address-cells = <1>;
-			#size-cells = <0>;
-			interrupts = <11>;
-			clock-frequency = <400000>;
-			timeout-ms = <1000>;
-			clocks = <&core_clk 0>;
-			status = "disabled";
-		};
-
-		ehci0: usb-host@50000 {
-			compatible = "marvell,orion-ehci";
-			reg = <0x50000 0x1000>;
-			interrupts = <24>;
-			clocks = <&gate_clk 0>;
-			status = "okay";
-		};
-
-		ehci1: usb-host@51000 {
-			compatible = "marvell,orion-ehci";
-			reg = <0x51000 0x1000>;
-			interrupts = <25>;
-			clocks = <&gate_clk 1>;
-			status = "okay";
-		};
-
-		sdio0: sdio-host@92000 {
-			compatible = "marvell,dove-sdhci";
-			reg = <0x92000 0x100>;
-			interrupts = <35>, <37>;
-			clocks = <&gate_clk 8>;
-			pinctrl-0 = <&pmx_sdio0>;
-			pinctrl-names = "default";
-			status = "disabled";
-		};
-
-		sdio1: sdio-host@90000 {
-			compatible = "marvell,dove-sdhci";
-			reg = <0x90000 0x100>;
-			interrupts = <36>, <38>;
-			clocks = <&gate_clk 9>;
-			pinctrl-0 = <&pmx_sdio1>;
-			pinctrl-names = "default";
-			status = "disabled";
-		};
-
-		sata0: sata-host@a0000 {
-			compatible = "marvell,orion-sata";
-			reg = <0xa0000 0x2400>;
-			interrupts = <62>;
-			clocks = <&gate_clk 3>;
-			nr-ports = <1>;
-			status = "disabled";
-		};
-
-		rtc: real-time-clock@d8500 {
-			compatible = "marvell,orion-rtc";
-			reg = <0xd8500 0x20>;
-		};
-
-		crypto: crypto-engine@30000 {
-			compatible = "marvell,orion-crypto";
-			reg = <0x30000 0x10000>,
-			      <0xc8000000 0x800>;
-			reg-names = "regs", "sram";
-			interrupts = <31>;
-			clocks = <&gate_clk 15>;
-			status = "okay";
-		};
-
-		xor0: dma-engine@60800 {
-			compatible = "marvell,orion-xor";
-			reg = <0x60800 0x100
-			       0x60a00 0x100>;
-			clocks = <&gate_clk 23>;
-			status = "okay";
-
-			channel0 {
-				interrupts = <39>;
-				dmacap,memcpy;
-				dmacap,xor;
-			};
-
-			channel1 {
-				interrupts = <40>;
-				dmacap,memset;
-				dmacap,memcpy;
-				dmacap,xor;
-			};
-		};
-
-		xor1: dma-engine@60900 {
-			compatible = "marvell,orion-xor";
-			reg = <0x60900 0x100
-			       0x60b00 0x100>;
-			clocks = <&gate_clk 24>;
-			status = "okay";
-
-			channel0 {
-				interrupts = <42>;
-				dmacap,memcpy;
-				dmacap,xor;
-			};
-
-			channel1 {
-				interrupts = <43>;
-				dmacap,memset;
-				dmacap,memcpy;
-				dmacap,xor;
-			};
-		};
-
-		mdio: mdio-bus@72004 {
-			compatible = "marvell,orion-mdio";
-			#address-cells = <1>;
-			#size-cells = <0>;
-			reg = <0x72004 0x84>;
-			interrupts = <30>;
-			clocks = <&gate_clk 2>;
-			status = "disabled";
-
-			ethphy: ethernet-phy {
-				device-type = "ethernet-phy";
-				/* set phy address in board file */
-			};
-		};
 
-		eth: ethernet-controller@72000 {
-			compatible = "marvell,orion-eth";
+		internal-regs {
+			compatible = "simple-bus";
 			#address-cells = <1>;
-			#size-cells = <0>;
-			reg = <0x72000 0x4000>;
-			clocks = <&gate_clk 2>;
-			marvell,tx-checksum-limit = <1600>;
-			status = "disabled";
-
-			ethernet-port@0 {
-				device_type = "network";
-				compatible = "marvell,orion-eth-port";
-				reg = <0>;
-				interrupts = <29>;
-				/* overwrite MAC address in bootloader */
-				local-mac-address = [00 00 00 00 00 00];
-				phy-handle = <&ethphy>;
+			#size-cells = <1>;
+			ranges = <0x00000000 MBUS_ID(0xf0, 0x01) 0 0x0100000   /* MBUS regs  1M */
+				  0x00800000 MBUS_ID(0xf0, 0x02) 0 0x1000000   /* AXI  regs 16M */
+				  0xffffe000 MBUS_ID(0x03, 0x01) 0 0x0000800   /* CESA SRAM  2k */
+				  0xfffff000 MBUS_ID(0x0d, 0x00) 0 0x0000800>; /* PMU  SRAM  2k */
+
+			mbusc: mbus-ctrl@20000 {
+				compatible = "marvell,mbus-controller";
+				reg = <0x20000 0x80>, <0x800100 0x8>;
+			};
+
+			timer: timer@20300 {
+				compatible = "marvell,orion-timer";
+				reg = <0x20300 0x20>;
+				interrupt-parent = <&bridge_intc>;
+				interrupts = <1>, <2>;
+				clocks = <&core_clk 0>;
+			};
+
+			intc: main-interrupt-ctrl@20200 {
+				compatible = "marvell,orion-intc";
+				interrupt-controller;
+				#interrupt-cells = <1>;
+				reg = <0x20200 0x10>, <0x20210 0x10>;
+			};
+
+			bridge_intc: bridge-interrupt-ctrl@20110 {
+				compatible = "marvell,orion-bridge-intc";
+				interrupt-controller;
+				#interrupt-cells = <1>;
+				reg = <0x20110 0x8>;
+				interrupts = <0>;
+				marvell,#interrupts = <5>;
+			};
+
+			core_clk: core-clocks@d0214 {
+				compatible = "marvell,dove-core-clock";
+				reg = <0xd0214 0x4>;
+				#clock-cells = <1>;
+			};
+
+			gate_clk: clock-gating-ctrl@d0038 {
+				compatible = "marvell,dove-gating-clock";
+				reg = <0xd0038 0x4>;
+				clocks = <&core_clk 0>;
+				#clock-cells = <1>;
+			};
+
+			thermal: thermal-diode@d001c {
+				compatible = "marvell,dove-thermal";
+				reg = <0xd001c 0x0c>, <0xd005c 0x08>;
+			};
+
+			uart0: serial@12000 {
+				compatible = "ns16550a";
+				reg = <0x12000 0x100>;
+				reg-shift = <2>;
+				interrupts = <7>;
+				clocks = <&core_clk 0>;
+				status = "disabled";
+			};
+
+			uart1: serial@12100 {
+				compatible = "ns16550a";
+				reg = <0x12100 0x100>;
+				reg-shift = <2>;
+				interrupts = <8>;
+				clocks = <&core_clk 0>;
+				pinctrl-0 = <&pmx_uart1>;
+				pinctrl-names = "default";
+				status = "disabled";
+			};
+
+			uart2: serial@12200 {
+				compatible = "ns16550a";
+				reg = <0x12000 0x100>;
+				reg-shift = <2>;
+				interrupts = <9>;
+				clocks = <&core_clk 0>;
+				status = "disabled";
+			};
+
+			uart3: serial@12300 {
+				compatible = "ns16550a";
+				reg = <0x12100 0x100>;
+				reg-shift = <2>;
+				interrupts = <10>;
+				clocks = <&core_clk 0>;
+				status = "disabled";
+			};
+
+			gpio0: gpio-ctrl@d0400 {
+				compatible = "marvell,orion-gpio";
+				#gpio-cells = <2>;
+				gpio-controller;
+				reg = <0xd0400 0x20>;
+				ngpios = <32>;
+				interrupt-controller;
+				#interrupt-cells = <2>;
+				interrupts = <12>, <13>, <14>, <60>;
+			};
+
+			gpio1: gpio-ctrl@d0420 {
+				compatible = "marvell,orion-gpio";
+				#gpio-cells = <2>;
+				gpio-controller;
+				reg = <0xd0420 0x20>;
+				ngpios = <32>;
+				interrupt-controller;
+				#interrupt-cells = <2>;
+				interrupts = <61>;
+			};
+
+			gpio2: gpio-ctrl@e8400 {
+				compatible = "marvell,orion-gpio";
+				#gpio-cells = <2>;
+				gpio-controller;
+				reg = <0xe8400 0x0c>;
+				ngpios = <8>;
+			};
+
+			pinctrl: pin-ctrl@d0200 {
+				compatible = "marvell,dove-pinctrl";
+				reg = <0xd0200 0x10>;
+				clocks = <&gate_clk 22>;
+
+				pmx_gpio_0: pmx-gpio-0 {
+					marvell,pins = "mpp0";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_1: pmx-gpio-1 {
+					marvell,pins = "mpp1";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_2: pmx-gpio-2 {
+					marvell,pins = "mpp2";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_3: pmx-gpio-3 {
+					marvell,pins = "mpp3";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_4: pmx-gpio-4 {
+					marvell,pins = "mpp4";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_5: pmx-gpio-5 {
+					marvell,pins = "mpp5";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_6: pmx-gpio-6 {
+					marvell,pins = "mpp6";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_7: pmx-gpio-7 {
+					marvell,pins = "mpp7";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_8: pmx-gpio-8 {
+					marvell,pins = "mpp8";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_9: pmx-gpio-9 {
+					marvell,pins = "mpp9";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_10: pmx-gpio-10 {
+					marvell,pins = "mpp10";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_11: pmx-gpio-11 {
+					marvell,pins = "mpp11";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_12: pmx-gpio-12 {
+					marvell,pins = "mpp12";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_13: pmx-gpio-13 {
+					marvell,pins = "mpp13";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_14: pmx-gpio-14 {
+					marvell,pins = "mpp14";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_15: pmx-gpio-15 {
+					marvell,pins = "mpp15";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_16: pmx-gpio-16 {
+					marvell,pins = "mpp16";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_17: pmx-gpio-17 {
+					marvell,pins = "mpp17";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_18: pmx-gpio-18 {
+					marvell,pins = "mpp18";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_19: pmx-gpio-19 {
+					marvell,pins = "mpp19";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_20: pmx-gpio-20 {
+					marvell,pins = "mpp20";
+					marvell,function = "gpio";
+				};
+
+				pmx_gpio_21: pmx-gpio-21 {
+					marvell,pins = "mpp21";
+					marvell,function = "gpio";
+				};
+
+				pmx_camera: pmx-camera {
+					marvell,pins = "mpp_camera";
+					marvell,function = "camera";
+				};
+
+				pmx_camera_gpio: pmx-camera-gpio {
+					marvell,pins = "mpp_camera";
+					marvell,function = "gpio";
+				};
+
+				pmx_sdio0: pmx-sdio0 {
+					marvell,pins = "mpp_sdio0";
+					marvell,function = "sdio0";
+				};
+
+				pmx_sdio0_gpio: pmx-sdio0-gpio {
+					marvell,pins = "mpp_sdio0";
+					marvell,function = "gpio";
+				};
+
+				pmx_sdio1: pmx-sdio1 {
+					marvell,pins = "mpp_sdio1";
+					marvell,function = "sdio1";
+				};
+
+				pmx_sdio1_gpio: pmx-sdio1-gpio {
+					marvell,pins = "mpp_sdio1";
+					marvell,function = "gpio";
+				};
+
+				pmx_audio1_gpio: pmx-audio1-gpio {
+					marvell,pins = "mpp_audio1";
+					marvell,function = "gpio";
+				};
+
+				pmx_spi0: pmx-spi0 {
+					marvell,pins = "mpp_spi0";
+					marvell,function = "spi0";
+				};
+
+				pmx_spi0_gpio: pmx-spi0-gpio {
+					marvell,pins = "mpp_spi0";
+					marvell,function = "gpio";
+				};
+
+				pmx_uart1: pmx-uart1 {
+					marvell,pins = "mpp_uart1";
+					marvell,function = "uart1";
+				};
+
+				pmx_uart1_gpio: pmx-uart1-gpio {
+					marvell,pins = "mpp_uart1";
+					marvell,function = "gpio";
+				};
+
+				pmx_nand: pmx-nand {
+					marvell,pins = "mpp_nand";
+					marvell,function = "nand";
+				};
+
+				pmx_nand_gpo: pmx-nand-gpo {
+					marvell,pins = "mpp_nand";
+					marvell,function = "gpo";
+				};
+			};
+
+			spi0: spi-ctrl@10600 {
+				compatible = "marvell,orion-spi";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				cell-index = <0>;
+				interrupts = <6>;
+				reg = <0x10600 0x28>;
+				clocks = <&core_clk 0>;
+				pinctrl-0 = <&pmx_spi0>;
+				pinctrl-names = "default";
+				status = "disabled";
+			};
+
+			spi1: spi-ctrl@14600 {
+				compatible = "marvell,orion-spi";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				cell-index = <1>;
+				interrupts = <5>;
+				reg = <0x14600 0x28>;
+				clocks = <&core_clk 0>;
+				status = "disabled";
+			};
+
+			i2c0: i2c-ctrl@11000 {
+				compatible = "marvell,mv64xxx-i2c";
+				reg = <0x11000 0x20>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				interrupts = <11>;
+				clock-frequency = <400000>;
+				timeout-ms = <1000>;
+				clocks = <&core_clk 0>;
+				status = "disabled";
+			};
+
+			ehci0: usb-host@50000 {
+				compatible = "marvell,orion-ehci";
+				reg = <0x50000 0x1000>;
+				interrupts = <24>;
+				clocks = <&gate_clk 0>;
+				status = "okay";
+			};
+
+			ehci1: usb-host@51000 {
+				compatible = "marvell,orion-ehci";
+				reg = <0x51000 0x1000>;
+				interrupts = <25>;
+				clocks = <&gate_clk 1>;
+				status = "okay";
+			};
+
+			sdio0: sdio-host@92000 {
+				compatible = "marvell,dove-sdhci";
+				reg = <0x92000 0x100>;
+				interrupts = <35>, <37>;
+				clocks = <&gate_clk 8>;
+				pinctrl-0 = <&pmx_sdio0>;
+				pinctrl-names = "default";
+				status = "disabled";
+			};
+
+			sdio1: sdio-host@90000 {
+				compatible = "marvell,dove-sdhci";
+				reg = <0x90000 0x100>;
+				interrupts = <36>, <38>;
+				clocks = <&gate_clk 9>;
+				pinctrl-0 = <&pmx_sdio1>;
+				pinctrl-names = "default";
+				status = "disabled";
+			};
+
+			sata0: sata-host@a0000 {
+				compatible = "marvell,orion-sata";
+				reg = <0xa0000 0x2400>;
+				interrupts = <62>;
+				clocks = <&gate_clk 3>;
+				nr-ports = <1>;
+				status = "disabled";
+			};
+
+			rtc: real-time-clock@d8500 {
+				compatible = "marvell,orion-rtc";
+				reg = <0xd8500 0x20>;
+			};
+
+			crypto: crypto-engine@30000 {
+				compatible = "marvell,orion-crypto";
+				reg = <0x30000 0x10000>,
+				      <0xffffe000 0x800>;
+				reg-names = "regs", "sram";
+				interrupts = <31>;
+				clocks = <&gate_clk 15>;
+				status = "okay";
+			};
+
+			xor0: dma-engine@60800 {
+				compatible = "marvell,orion-xor";
+				reg = <0x60800 0x100
+				       0x60a00 0x100>;
+				clocks = <&gate_clk 23>;
+				status = "okay";
+
+				channel0 {
+					interrupts = <39>;
+					dmacap,memcpy;
+					dmacap,xor;
+				};
+
+				channel1 {
+					interrupts = <40>;
+					dmacap,memcpy;
+					dmacap,xor;
+				};
+			};
+
+			xor1: dma-engine@60900 {
+				compatible = "marvell,orion-xor";
+				reg = <0x60900 0x100
+				       0x60b00 0x100>;
+				clocks = <&gate_clk 24>;
+				status = "okay";
+
+				channel0 {
+					interrupts = <42>;
+					dmacap,memcpy;
+					dmacap,xor;
+				};
+
+				channel1 {
+					interrupts = <43>;
+					dmacap,memcpy;
+					dmacap,xor;
+				};
+			};
+
+			mdio: mdio-bus@72004 {
+				compatible = "marvell,orion-mdio";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0x72004 0x84>;
+				interrupts = <30>;
+				clocks = <&gate_clk 2>;
+				status = "disabled";
+
+				ethphy: ethernet-phy {
+					device-type = "ethernet-phy";
+					/* set phy address in board file */
+				};
+			};
+
+			eth: ethernet-ctrl@72000 {
+				compatible = "marvell,orion-eth";
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0x72000 0x4000>;
+				clocks = <&gate_clk 2>;
+				marvell,tx-checksum-limit = <1600>;
+				status = "disabled";
+
+				ethernet-port@0 {
+					device_type = "network";
+					compatible = "marvell,orion-eth-port";
+					reg = <0>;
+					interrupts = <29>;
+					/* overwrite MAC address in bootloader */
+					local-mac-address = [00 00 00 00 00 00];
+					phy-handle = <&ethphy>;
+				};
 			};
 		};
 	};
-- 
cgit 


From 74ecaa403a742b2c614a60e5ffef04a704d84071 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Mon, 12 Aug 2013 20:46:53 +0200
Subject: ARM: dove: add PCIe controllers to SoC DT

This adds a node for the pcie controllers found on Dove SoCs to the
SoC DT include.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/dove.dtsi | 54 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi
index d42b323e7593..499abadf86f0 100644
--- a/arch/arm/boot/dts/dove.dtsi
+++ b/arch/arm/boot/dts/dove.dtsi
@@ -44,6 +44,60 @@
 			  MBUS_ID(0x03, 0x01) 0 0xc8000000 0x0100000   /* CESA SRAM  1M */
 			  MBUS_ID(0x0d, 0x00) 0 0xf0000000 0x0100000>; /* PMU  SRAM  1M */
 
+		pcie: pcie-controller {
+			compatible = "marvell,dove-pcie";
+			status = "disabled";
+			device_type = "pci";
+			#address-cells = <3>;
+			#size-cells = <2>;
+
+			msi-parent = <&intc>;
+			bus-range = <0x00 0xff>;
+
+			ranges = <0x82000000 0x0 0x40000 MBUS_ID(0xf0, 0x01) 0x40000 0 0x2000
+			          0x82000000 0x0 0x80000 MBUS_ID(0xf0, 0x01) 0x80000 0 0x2000
+				  0x82000000 0x1 0x0 MBUS_ID(0x04, 0xe8) 0 1 0   /* Port 0.0 Mem */
+				  0x81000000 0x1 0x0 MBUS_ID(0x04, 0xe0) 0 1 0   /* Port 0.0 I/O */
+				  0x82000000 0x2 0x0 MBUS_ID(0x08, 0xe8) 0 1 0   /* Port 1.0 Mem */
+				  0x81000000 0x2 0x0 MBUS_ID(0x08, 0xe0) 0 1 0>; /* Port 1.0 I/O */
+
+			pcie-port@0 {
+				device_type = "pci";
+				status = "disabled";
+				assigned-addresses = <0x82000800 0 0x40000 0 0x2000>;
+				reg = <0x0800 0 0 0 0>;
+				clocks = <&gate_clk 4>;
+				marvell,pcie-port = <0>;
+
+				#address-cells = <3>;
+				#size-cells = <2>;
+				ranges = <0x82000000 0 0 0x82000000 0x1 0 1 0
+				          0x81000000 0 0 0x81000000 0x1 0 1 0>;
+
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &intc 16>;
+			};
+
+			pcie-port@1 {
+				device_type = "pci";
+				status = "disabled";
+				assigned-addresses = <0x82002800 0 0x80000 0 0x2000>;
+				reg = <0x1000 0 0 0 0>;
+				clocks = <&gate_clk 5>;
+				marvell,pcie-port = <1>;
+
+				#address-cells = <3>;
+				#size-cells = <2>;
+				ranges = <0x82000000 0 0 0x82000000 0x2 0 1 0
+				          0x81000000 0 0 0x81000000 0x2 0 1 0>;
+
+				#interrupt-cells = <1>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &intc 18>;
+			};
+		};
+
 		internal-regs {
 			compatible = "simple-bus";
 			#address-cells = <1>;
-- 
cgit 


From 37078732998e51c2645db99e7434ccc6774dafed Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Mon, 12 Aug 2013 20:46:54 +0200
Subject: ARM: dove: add initial DT file for Globalscale D3Plug

This adds an initial DT file for the Globalscale D3Plug with Dove SoC.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/Makefile        |   1 +
 arch/arm/boot/dts/dove-d3plug.dts | 103 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 104 insertions(+)
 create mode 100644 arch/arm/boot/dts/dove-d3plug.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index cc0f1fb61753..69193bedc88c 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -49,6 +49,7 @@ dtb-$(CONFIG_ARCH_DAVINCI) += da850-enbw-cmc.dtb \
 dtb-$(CONFIG_ARCH_DOVE) += dove-cm-a510.dtb \
 	dove-cubox.dtb \
 	dove-d2plug.dtb \
+	dove-d3plug.dtb \
 	dove-dove-db.dtb
 dtb-$(CONFIG_ARCH_EXYNOS) += exynos4210-origen.dtb \
 	exynos4210-smdkv310.dtb \
diff --git a/arch/arm/boot/dts/dove-d3plug.dts b/arch/arm/boot/dts/dove-d3plug.dts
new file mode 100644
index 000000000000..f5f59bb5a534
--- /dev/null
+++ b/arch/arm/boot/dts/dove-d3plug.dts
@@ -0,0 +1,103 @@
+/dts-v1/;
+
+#include "dove.dtsi"
+
+/ {
+	model = "Globalscale D3Plug";
+	compatible = "globalscale,d3plug", "marvell,dove";
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x40000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8 earlyprintk root=/dev/mmcblk0p2 rw rootwait";
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-0 = <&pmx_gpio_0 &pmx_gpio_1 &pmx_gpio_2>;
+		pinctrl-names = "default";
+
+		wlan-act {
+			label = "wlan-act";
+			gpios = <&gpio0 0 1>;
+		};
+
+		wlan-ap {
+			label = "wlan-ap";
+			gpios = <&gpio0 1 1>;
+		};
+
+		status {
+			label = "status";
+			gpios = <&gpio0 2 1>;
+		};
+	};
+
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		usb_power: regulator@1 {
+			compatible = "regulator-fixed";
+			reg = <1>;
+			regulator-name = "USB Power";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			enable-active-high;
+			regulator-always-on;
+			regulator-boot-on;
+			gpio = <&gpio0 8 0>;
+			pinctrl-0 = <&pmx_gpio_8>;
+			pinctrl-names = "default";
+		};
+	};
+};
+
+&uart0 { status = "okay"; };
+&sata0 { status = "okay"; };
+&i2c0 { status = "okay"; };
+
+/* Samsung M8G2F eMMC */
+&sdio0 {
+	status = "okay";
+	non-removable;
+	bus-width = <4>;
+};
+
+/* Marvell SD8787 WLAN/BT */
+&sdio1 {
+	status = "okay";
+	non-removable;
+};
+
+&spi0 {
+	status = "okay";
+
+	/* spi0.0: 2M Flash Macronix MX25L1605D */
+	spi-flash@0 {
+		compatible = "st,m25l1605d";
+		spi-max-frequency = <86000000>;
+		reg = <0>;
+	};
+};
+
+&pcie {
+	status = "okay";
+	/* Fresco Logic USB3.0 xHCI controller */
+	pcie-port@0 {
+		status = "okay";
+		reset-gpios = <&gpio0 26 1>;
+		reset-delay-us = <20000>;
+		pinctrl-0 = <&pmx_camera_gpio>;
+		pinctrl-names = "default";
+	};
+	/* Mini-PCIe slot */
+	pcie-port@1 {
+		status = "okay";
+		reset-gpios = <&gpio0 25 1>;
+	};
+};
-- 
cgit 


From 49863894db3ed7bd41541b1c17733273966cea71 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Thu, 26 Sep 2013 12:36:35 +0100
Subject: ARM: perf: add support for perf registers API

This patch implements the functions required for the perf registers API,
allowing the perf tool to interface kernel register dumps with libunwind
in order to provide userspace backtracing.

Cc: Jean Pihet <jean.pihet@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 arch/arm/Kconfig                      |  2 ++
 arch/arm/include/uapi/asm/Kbuild      |  1 +
 arch/arm/include/uapi/asm/perf_regs.h | 23 +++++++++++++++++++++++
 arch/arm/kernel/Makefile              |  1 +
 arch/arm/kernel/perf_regs.c           | 30 ++++++++++++++++++++++++++++++
 5 files changed, 57 insertions(+)
 create mode 100644 arch/arm/include/uapi/asm/perf_regs.h
 create mode 100644 arch/arm/kernel/perf_regs.c

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1ad6fb6c094d..899d0c6ec2c5 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -51,6 +51,8 @@ config ARM
 	select HAVE_MOD_ARCH_SPECIFIC if ARM_UNWIND
 	select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
 	select HAVE_PERF_EVENTS
+	select HAVE_PERF_REGS
+	select HAVE_PERF_USER_STACK_DUMP
 	select HAVE_REGS_AND_STACK_ACCESS_API
 	select HAVE_SYSCALL_TRACEPOINTS
 	select HAVE_UID16
diff --git a/arch/arm/include/uapi/asm/Kbuild b/arch/arm/include/uapi/asm/Kbuild
index 18d76fd5a2af..70a1c9da30ca 100644
--- a/arch/arm/include/uapi/asm/Kbuild
+++ b/arch/arm/include/uapi/asm/Kbuild
@@ -7,6 +7,7 @@ header-y += hwcap.h
 header-y += ioctls.h
 header-y += kvm_para.h
 header-y += mman.h
+header-y += perf_regs.h
 header-y += posix_types.h
 header-y += ptrace.h
 header-y += setup.h
diff --git a/arch/arm/include/uapi/asm/perf_regs.h b/arch/arm/include/uapi/asm/perf_regs.h
new file mode 100644
index 000000000000..ce59448458b2
--- /dev/null
+++ b/arch/arm/include/uapi/asm/perf_regs.h
@@ -0,0 +1,23 @@
+#ifndef _ASM_ARM_PERF_REGS_H
+#define _ASM_ARM_PERF_REGS_H
+
+enum perf_event_arm_regs {
+	PERF_REG_ARM_R0,
+	PERF_REG_ARM_R1,
+	PERF_REG_ARM_R2,
+	PERF_REG_ARM_R3,
+	PERF_REG_ARM_R4,
+	PERF_REG_ARM_R5,
+	PERF_REG_ARM_R6,
+	PERF_REG_ARM_R7,
+	PERF_REG_ARM_R8,
+	PERF_REG_ARM_R9,
+	PERF_REG_ARM_R10,
+	PERF_REG_ARM_FP,
+	PERF_REG_ARM_IP,
+	PERF_REG_ARM_SP,
+	PERF_REG_ARM_LR,
+	PERF_REG_ARM_PC,
+	PERF_REG_ARM_MAX,
+};
+#endif /* _ASM_ARM_PERF_REGS_H */
diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile
index 5140df5f23aa..9b818ca3610b 100644
--- a/arch/arm/kernel/Makefile
+++ b/arch/arm/kernel/Makefile
@@ -78,6 +78,7 @@ obj-$(CONFIG_CPU_XSC3)		+= xscale-cp0.o
 obj-$(CONFIG_CPU_MOHAWK)	+= xscale-cp0.o
 obj-$(CONFIG_CPU_PJ4)		+= pj4-cp0.o
 obj-$(CONFIG_IWMMXT)		+= iwmmxt.o
+obj-$(CONFIG_PERF_EVENTS)	+= perf_regs.o
 obj-$(CONFIG_HW_PERF_EVENTS)	+= perf_event.o perf_event_cpu.o
 AFLAGS_iwmmxt.o			:= -Wa,-mcpu=iwmmxt
 obj-$(CONFIG_ARM_CPU_TOPOLOGY)  += topology.o
diff --git a/arch/arm/kernel/perf_regs.c b/arch/arm/kernel/perf_regs.c
new file mode 100644
index 000000000000..6e4379c67cbc
--- /dev/null
+++ b/arch/arm/kernel/perf_regs.c
@@ -0,0 +1,30 @@
+
+#include <linux/errno.h>
+#include <linux/kernel.h>
+#include <linux/perf_event.h>
+#include <linux/bug.h>
+#include <asm/perf_regs.h>
+#include <asm/ptrace.h>
+
+u64 perf_reg_value(struct pt_regs *regs, int idx)
+{
+	if (WARN_ON_ONCE((u32)idx >= PERF_REG_ARM_MAX))
+		return 0;
+
+	return regs->uregs[idx];
+}
+
+#define REG_RESERVED (~((1ULL << PERF_REG_ARM_MAX) - 1))
+
+int perf_reg_validate(u64 mask)
+{
+	if (!mask || mask & REG_RESERVED)
+		return -EINVAL;
+
+	return 0;
+}
+
+u64 perf_reg_abi(struct task_struct *task)
+{
+	return PERF_SAMPLE_REGS_ABI_32;
+}
-- 
cgit 


From 7495f3742dda97612a77d92fa62f85cb7591ab14 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Thu, 26 Sep 2013 12:36:36 +0100
Subject: ARM: perf: wire up perf_regs and unwind support for ARM

This patch hooks in the perf_regs and libunwind code for ARM.

Cc: Jean Pihet <jean.pihet@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 tools/perf/arch/arm/Makefile            |  3 ++
 tools/perf/arch/arm/include/perf_regs.h | 54 +++++++++++++++++++++++++++++++++
 tools/perf/arch/arm/util/unwind.c       | 48 +++++++++++++++++++++++++++++
 tools/perf/config/Makefile              |  7 +++--
 4 files changed, 110 insertions(+), 2 deletions(-)
 create mode 100644 tools/perf/arch/arm/include/perf_regs.h
 create mode 100644 tools/perf/arch/arm/util/unwind.c

diff --git a/tools/perf/arch/arm/Makefile b/tools/perf/arch/arm/Makefile
index 15130b50dfe3..fe9b61e322a5 100644
--- a/tools/perf/arch/arm/Makefile
+++ b/tools/perf/arch/arm/Makefile
@@ -2,3 +2,6 @@ ifndef NO_DWARF
 PERF_HAVE_DWARF_REGS := 1
 LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/dwarf-regs.o
 endif
+ifndef NO_LIBUNWIND
+LIB_OBJS += $(OUTPUT)arch/$(ARCH)/util/unwind.o
+endif
diff --git a/tools/perf/arch/arm/include/perf_regs.h b/tools/perf/arch/arm/include/perf_regs.h
new file mode 100644
index 000000000000..2a1cfde66b69
--- /dev/null
+++ b/tools/perf/arch/arm/include/perf_regs.h
@@ -0,0 +1,54 @@
+#ifndef ARCH_PERF_REGS_H
+#define ARCH_PERF_REGS_H
+
+#include <stdlib.h>
+#include "../../util/types.h"
+#include <asm/perf_regs.h>
+
+#define PERF_REGS_MASK	((1ULL << PERF_REG_ARM_MAX) - 1)
+#define PERF_REG_IP	PERF_REG_ARM_PC
+#define PERF_REG_SP	PERF_REG_ARM_SP
+
+static inline const char *perf_reg_name(int id)
+{
+	switch (id) {
+	case PERF_REG_ARM_R0:
+		return "r0";
+	case PERF_REG_ARM_R1:
+		return "r1";
+	case PERF_REG_ARM_R2:
+		return "r2";
+	case PERF_REG_ARM_R3:
+		return "r3";
+	case PERF_REG_ARM_R4:
+		return "r4";
+	case PERF_REG_ARM_R5:
+		return "r5";
+	case PERF_REG_ARM_R6:
+		return "r6";
+	case PERF_REG_ARM_R7:
+		return "r7";
+	case PERF_REG_ARM_R8:
+		return "r8";
+	case PERF_REG_ARM_R9:
+		return "r9";
+	case PERF_REG_ARM_R10:
+		return "r10";
+	case PERF_REG_ARM_FP:
+		return "fp";
+	case PERF_REG_ARM_IP:
+		return "ip";
+	case PERF_REG_ARM_SP:
+		return "sp";
+	case PERF_REG_ARM_LR:
+		return "lr";
+	case PERF_REG_ARM_PC:
+		return "pc";
+	default:
+		return NULL;
+	}
+
+	return NULL;
+}
+
+#endif /* ARCH_PERF_REGS_H */
diff --git a/tools/perf/arch/arm/util/unwind.c b/tools/perf/arch/arm/util/unwind.c
new file mode 100644
index 000000000000..da3dc950550c
--- /dev/null
+++ b/tools/perf/arch/arm/util/unwind.c
@@ -0,0 +1,48 @@
+
+#include <errno.h>
+#include <libunwind.h>
+#include "perf_regs.h"
+#include "../../util/unwind.h"
+
+int unwind__arch_reg_id(int regnum)
+{
+	switch (regnum) {
+	case UNW_ARM_R0:
+		return PERF_REG_ARM_R0;
+	case UNW_ARM_R1:
+		return PERF_REG_ARM_R1;
+	case UNW_ARM_R2:
+		return PERF_REG_ARM_R2;
+	case UNW_ARM_R3:
+		return PERF_REG_ARM_R3;
+	case UNW_ARM_R4:
+		return PERF_REG_ARM_R4;
+	case UNW_ARM_R5:
+		return PERF_REG_ARM_R5;
+	case UNW_ARM_R6:
+		return PERF_REG_ARM_R6;
+	case UNW_ARM_R7:
+		return PERF_REG_ARM_R7;
+	case UNW_ARM_R8:
+		return PERF_REG_ARM_R8;
+	case UNW_ARM_R9:
+		return PERF_REG_ARM_R9;
+	case UNW_ARM_R10:
+		return PERF_REG_ARM_R10;
+	case UNW_ARM_R11:
+		return PERF_REG_ARM_FP;
+	case UNW_ARM_R12:
+		return PERF_REG_ARM_IP;
+	case UNW_ARM_R13:
+		return PERF_REG_ARM_SP;
+	case UNW_ARM_R14:
+		return PERF_REG_ARM_LR;
+	case UNW_ARM_R15:
+		return PERF_REG_ARM_PC;
+	default:
+		pr_err("unwind: invalid reg id %d\n", regnum);
+		return -EINVAL;
+	}
+
+	return -EINVAL;
+}
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 5f6f9b3271bb..4796ce54e653 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -29,6 +29,10 @@ ifeq ($(ARCH),x86_64)
   NO_PERF_REGS := 0
   LIBUNWIND_LIBS = -lunwind -lunwind-x86_64
 endif
+ifeq ($(ARCH),arm)
+  NO_PERF_REGS := 0
+  LIBUNWIND_LIBS = -lunwind -lunwind-arm
+endif
 
 ifeq ($(NO_PERF_REGS),0)
   CFLAGS += -DHAVE_PERF_REGS
@@ -208,8 +212,7 @@ ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DLIBELF_MMAP),y)
 endif # try-cc
 endif # NO_LIBELF
 
-# There's only x86 (both 32 and 64) support for CFI unwind so far
-ifneq ($(ARCH),x86)
+ifeq ($(LIBUNWIND_LIBS),)
   NO_LIBUNWIND := 1
 endif
 
-- 
cgit 


From 405ffbd4988118c56ff127792ebddae77d2c7a43 Mon Sep 17 00:00:00 2001
From: Jean Pihet <jean.pihet@linaro.org>
Date: Thu, 26 Sep 2013 12:36:37 +0100
Subject: perf tools: Check libunwind for availability of dwarf parsing feature

The newly added dwarf unwinding feature [1] requires:
. a recent version (>= 1.1) of libunwind,
. libunwind to be configured with --enable-debug-frame.

[1] http://www.spinics.net/lists/kernel/msg1598951.html

Add the corresponding API tests in the feature check list.

Acked-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Jean Pihet <jean.pihet@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 tools/perf/config/Makefile          |  6 +++++-
 tools/perf/config/feature-tests.mak | 21 ++++++++++++++++++++-
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 4796ce54e653..75b93d7f7860 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -226,9 +226,13 @@ endif
 
 FLAGS_UNWIND=$(LIBUNWIND_CFLAGS) $(CFLAGS) $(LIBUNWIND_LDFLAGS) $(LDFLAGS) $(EXTLIBS) $(LIBUNWIND_LIBS)
 ifneq ($(call try-cc,$(SOURCE_LIBUNWIND),$(FLAGS_UNWIND),libunwind),y)
-  msg := $(warning No libunwind found, disabling post unwind support. Please install libunwind-dev[el] >= 0.99);
+  msg := $(warning No libunwind found, disabling post unwind support. Please install libunwind-dev[el] >= 1.1);
   NO_LIBUNWIND := 1
 endif # Libunwind support
+ifneq ($(call try-cc,$(SOURCE_LIBUNWIND_DEBUG_FRAME),$(FLAGS_UNWIND),libunwind debug_frame),y)
+  msg := $(warning No debug_frame support found in libunwind);
+CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
+endif # debug_frame support in libunwind
 endif # NO_LIBUNWIND
 
 ifndef NO_LIBUNWIND
diff --git a/tools/perf/config/feature-tests.mak b/tools/perf/config/feature-tests.mak
index d5a8dd44945f..40b21c0bc10a 100644
--- a/tools/perf/config/feature-tests.mak
+++ b/tools/perf/config/feature-tests.mak
@@ -185,7 +185,6 @@ extern int UNW_OBJ(dwarf_search_unwind_table) (unw_addr_space_t as,
                                       unw_proc_info_t *pi,
                                       int need_unwind_info, void *arg);
 
-
 #define dwarf_search_unwind_table UNW_OBJ(dwarf_search_unwind_table)
 
 int main(void)
@@ -197,6 +196,26 @@ int main(void)
 	return 0;
 }
 endef
+
+define SOURCE_LIBUNWIND_DEBUG_FRAME
+#include <libunwind.h>
+#include <stdlib.h>
+
+extern int
+UNW_OBJ(dwarf_find_debug_frame) (int found, unw_dyn_info_t *di_debug,
+				 unw_word_t ip, unw_word_t segbase,
+				 const char *obj_name, unw_word_t start,
+				 unw_word_t end);
+
+#define dwarf_find_debug_frame UNW_OBJ(dwarf_find_debug_frame)
+
+int main(void)
+{
+	dwarf_find_debug_frame(0, NULL, 0, 0, NULL, 0, 0);
+	return 0;
+}
+endef
+
 endif
 
 ifndef NO_BACKTRACE
-- 
cgit 


From ab255e72204fc5127f0adf40ba103d9335fefa30 Mon Sep 17 00:00:00 2001
From: Jean Pihet <jean.pihet@linaro.org>
Date: Thu, 26 Sep 2013 12:36:38 +0100
Subject: perf: parse the .debug_frame section in case .eh_frame is not present

On ARM the debug info is not present in the .eh_frame sections but
in .debug_frame instead, in dwarf format.
Use libunwind to load and parse the debug info.

Dependencies:
 . if present, libunwind >= 1.1 is needed to prevent a segfault when
   parsing the dwarf info,
 . libunwind needs to be configured with --enable-debug-frame. Note:
   --enable-debug-frame is automatically selected on ARM.

Acked-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Jean Pihet <jean.pihet@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 tools/perf/util/unwind.c | 75 +++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 59 insertions(+), 16 deletions(-)

diff --git a/tools/perf/util/unwind.c b/tools/perf/util/unwind.c
index 2f891f7e70bf..5390d0b8862a 100644
--- a/tools/perf/util/unwind.c
+++ b/tools/perf/util/unwind.c
@@ -39,6 +39,15 @@ UNW_OBJ(dwarf_search_unwind_table) (unw_addr_space_t as,
 
 #define dwarf_search_unwind_table UNW_OBJ(dwarf_search_unwind_table)
 
+extern int
+UNW_OBJ(dwarf_find_debug_frame) (int found, unw_dyn_info_t *di_debug,
+				 unw_word_t ip,
+				 unw_word_t segbase,
+				 const char *obj_name, unw_word_t start,
+				 unw_word_t end);
+
+#define dwarf_find_debug_frame UNW_OBJ(dwarf_find_debug_frame)
+
 #define DW_EH_PE_FORMAT_MASK	0x0f	/* format of the encoded value */
 #define DW_EH_PE_APPL_MASK	0x70	/* how the value is to be applied */
 
@@ -245,8 +254,9 @@ static int unwind_spec_ehframe(struct dso *dso, struct machine *machine,
 	return 0;
 }
 
-static int read_unwind_spec(struct dso *dso, struct machine *machine,
-			    u64 *table_data, u64 *segbase, u64 *fde_count)
+static int read_unwind_spec_eh_frame(struct dso *dso, struct machine *machine,
+				     u64 *table_data, u64 *segbase,
+				     u64 *fde_count)
 {
 	int ret = -EINVAL, fd;
 	u64 offset;
@@ -255,6 +265,7 @@ static int read_unwind_spec(struct dso *dso, struct machine *machine,
 	if (fd < 0)
 		return -EINVAL;
 
+	/* Check the .eh_frame section for unwinding info */
 	offset = elf_section_offset(fd, ".eh_frame_hdr");
 	close(fd);
 
@@ -263,10 +274,29 @@ static int read_unwind_spec(struct dso *dso, struct machine *machine,
 					  table_data, segbase,
 					  fde_count);
 
-	/* TODO .debug_frame check if eh_frame_hdr fails */
 	return ret;
 }
 
+#ifndef NO_LIBUNWIND_DEBUG_FRAME
+static int read_unwind_spec_debug_frame(struct dso *dso,
+					struct machine *machine, u64 *offset)
+{
+	int fd = dso__data_fd(dso, machine);
+
+	if (fd < 0)
+		return -EINVAL;
+
+	/* Check the .debug_frame section for unwinding info */
+	*offset = elf_section_offset(fd, ".debug_frame");
+	close(fd);
+
+	if (*offset)
+		return 0;
+
+	return -EINVAL;
+}
+#endif
+
 static struct map *find_map(unw_word_t ip, struct unwind_info *ui)
 {
 	struct addr_location al;
@@ -291,20 +321,33 @@ find_proc_info(unw_addr_space_t as, unw_word_t ip, unw_proc_info_t *pi,
 
 	pr_debug("unwind: find_proc_info dso %s\n", map->dso->name);
 
-	if (read_unwind_spec(map->dso, ui->machine,
-			     &table_data, &segbase, &fde_count))
-		return -EINVAL;
+	/* Check the .eh_frame section for unwinding info */
+	if (!read_unwind_spec_eh_frame(map->dso, ui->machine,
+				       &table_data, &segbase, &fde_count)) {
+		memset(&di, 0, sizeof(di));
+		di.format   = UNW_INFO_FORMAT_REMOTE_TABLE;
+		di.start_ip = map->start;
+		di.end_ip   = map->end;
+		di.u.rti.segbase    = map->start + segbase;
+		di.u.rti.table_data = map->start + table_data;
+		di.u.rti.table_len  = fde_count * sizeof(struct table_entry)
+				      / sizeof(unw_word_t);
+		return dwarf_search_unwind_table(as, ip, &di, pi,
+						 need_unwind_info, arg);
+	}
+
+#ifndef NO_LIBUNWIND_DEBUG_FRAME
+	/* Check the .debug_frame section for unwinding info */
+	if (!read_unwind_spec_debug_frame(map->dso, ui->machine, &segbase)) {
+		memset(&di, 0, sizeof(di));
+		dwarf_find_debug_frame(0, &di, ip, 0, map->dso->name,
+				       map->start, map->end);
+		return dwarf_search_unwind_table(as, ip, &di, pi,
+						 need_unwind_info, arg);
+	}
+#endif
 
-	memset(&di, 0, sizeof(di));
-	di.format   = UNW_INFO_FORMAT_REMOTE_TABLE;
-	di.start_ip = map->start;
-	di.end_ip   = map->end;
-	di.u.rti.segbase    = map->start + segbase;
-	di.u.rti.table_data = map->start + table_data;
-	di.u.rti.table_len  = fde_count * sizeof(struct table_entry)
-			      / sizeof(unw_word_t);
-	return dwarf_search_unwind_table(as, ip, &di, pi,
-					 need_unwind_info, arg);
+	return -EINVAL;
 }
 
 static int access_fpreg(unw_addr_space_t __maybe_unused as,
-- 
cgit 


From e744dff72bcd4d9588af91e1feb662702222ca12 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Wed, 26 Jun 2013 16:47:35 +0100
Subject: ARM: prefetch: remove redundant "cc" clobber

The pld instruction does not affect the condition flags, so don't bother
clobbering them.

Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 arch/arm/include/asm/processor.h | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h
index 413f3876341c..514a989cbd4b 100644
--- a/arch/arm/include/asm/processor.h
+++ b/arch/arm/include/asm/processor.h
@@ -97,9 +97,7 @@ static inline void prefetch(const void *ptr)
 {
 	__asm__ __volatile__(
 		"pld\t%a0"
-		:
-		: "p" (ptr)
-		: "cc");
+		:: "p" (ptr));
 }
 
 #define ARCH_HAS_PREFETCHW
-- 
cgit 


From 27a84793e42084392181ef2ef51a954f1cf0c519 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Tue, 2 Jul 2013 12:10:42 +0100
Subject: ARM: smp_on_up: move inline asm ALT_SMP patching macro out of
 spinlock.h

Patching UP/SMP alternatives inside inline assembly blocks is useful
outside of the spinlock implementation, where it is used for sev and wfe.

This patch lifts the macro into processor.h and gives it a scarier name
to (a) avoid conflicts in the global namespace and (b) to try and deter
its usage unless you "know what you're doing". The W macro for generating
wide instructions when targetting Thumb-2 is also made available under
the name WASM, to reduce the potential for conflicts with other headers.

Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 arch/arm/include/asm/processor.h | 12 ++++++++++++
 arch/arm/include/asm/spinlock.h  | 15 ++++-----------
 arch/arm/include/asm/unified.h   |  4 ++++
 3 files changed, 20 insertions(+), 11 deletions(-)

diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h
index 514a989cbd4b..26164c92fa30 100644
--- a/arch/arm/include/asm/processor.h
+++ b/arch/arm/include/asm/processor.h
@@ -22,6 +22,7 @@
 #include <asm/hw_breakpoint.h>
 #include <asm/ptrace.h>
 #include <asm/types.h>
+#include <asm/unified.h>
 
 #ifdef __KERNEL__
 #define STACK_TOP	((current->personality & ADDR_LIMIT_32BIT) ? \
@@ -87,6 +88,17 @@ unsigned long get_wchan(struct task_struct *p);
 #define KSTK_EIP(tsk)	task_pt_regs(tsk)->ARM_pc
 #define KSTK_ESP(tsk)	task_pt_regs(tsk)->ARM_sp
 
+#ifdef CONFIG_SMP
+#define __ALT_SMP_ASM(smp, up)						\
+	"9998:	" smp "\n"						\
+	"	.pushsection \".alt.smp.init\", \"a\"\n"		\
+	"	.long	9998b\n"					\
+	"	" up "\n"						\
+	"	.popsection\n"
+#else
+#define __ALT_SMP_ASM(smp, up)	up
+#endif
+
 /*
  * Prefetching support - only ARMv5.
  */
diff --git a/arch/arm/include/asm/spinlock.h b/arch/arm/include/asm/spinlock.h
index 4f2c28060c9a..e1ce45230913 100644
--- a/arch/arm/include/asm/spinlock.h
+++ b/arch/arm/include/asm/spinlock.h
@@ -11,15 +11,7 @@
  * sev and wfe are ARMv6K extensions.  Uniprocessor ARMv6 may not have the K
  * extensions, so when running on UP, we have to patch these instructions away.
  */
-#define ALT_SMP(smp, up)					\
-	"9998:	" smp "\n"					\
-	"	.pushsection \".alt.smp.init\", \"a\"\n"	\
-	"	.long	9998b\n"				\
-	"	" up "\n"					\
-	"	.popsection\n"
-
 #ifdef CONFIG_THUMB2_KERNEL
-#define SEV		ALT_SMP("sev.w", "nop.w")
 /*
  * For Thumb-2, special care is needed to ensure that the conditional WFE
  * instruction really does assemble to exactly 4 bytes (as required by
@@ -31,17 +23,18 @@
  * the assembler won't change IT instructions which are explicitly present
  * in the input.
  */
-#define WFE(cond)	ALT_SMP(		\
+#define WFE(cond)	__ALT_SMP_ASM(		\
 	"it " cond "\n\t"			\
 	"wfe" cond ".n",			\
 						\
 	"nop.w"					\
 )
 #else
-#define SEV		ALT_SMP("sev", "nop")
-#define WFE(cond)	ALT_SMP("wfe" cond, "nop")
+#define WFE(cond)	__ALT_SMP_ASM("wfe" cond, "nop")
 #endif
 
+#define SEV		__ALT_SMP_ASM(WASM(sev), WASM(nop))
+
 static inline void dsb_sev(void)
 {
 #if __LINUX_ARM_ARCH__ >= 7
diff --git a/arch/arm/include/asm/unified.h b/arch/arm/include/asm/unified.h
index f5989f46b4d2..b88beaba6b4a 100644
--- a/arch/arm/include/asm/unified.h
+++ b/arch/arm/include/asm/unified.h
@@ -38,6 +38,8 @@
 #ifdef __ASSEMBLY__
 #define W(instr)	instr.w
 #define BSYM(sym)	sym + 1
+#else
+#define WASM(instr)	#instr ".w"
 #endif
 
 #else	/* !CONFIG_THUMB2_KERNEL */
@@ -50,6 +52,8 @@
 #ifdef __ASSEMBLY__
 #define W(instr)	instr
 #define BSYM(sym)	sym
+#else
+#define WASM(instr)	#instr
 #endif
 
 #endif	/* CONFIG_THUMB2_KERNEL */
-- 
cgit 


From d8f57aa4bc5860df68d4c332d2a89c131417ee7b Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Wed, 26 Jun 2013 17:03:40 +0100
Subject: ARM: prefetch: add support for prefetchw using pldw on SMP ARMv7+
 CPUs

SMP ARMv7 CPUs implement the pldw instruction, which allows them to
prefetch data cachelines in an exclusive state.

This patch defines the prefetchw macro using pldw for CPUs that support
it.

Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 arch/arm/include/asm/processor.h | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h
index 26164c92fa30..c3d5fc124a05 100644
--- a/arch/arm/include/asm/processor.h
+++ b/arch/arm/include/asm/processor.h
@@ -112,12 +112,19 @@ static inline void prefetch(const void *ptr)
 		:: "p" (ptr));
 }
 
+#if __LINUX_ARM_ARCH__ >= 7 && defined(CONFIG_SMP)
 #define ARCH_HAS_PREFETCHW
-#define prefetchw(ptr)	prefetch(ptr)
-
-#define ARCH_HAS_SPINLOCK_PREFETCH
-#define spin_lock_prefetch(x) do { } while (0)
-
+static inline void prefetchw(const void *ptr)
+{
+	__asm__ __volatile__(
+		".arch_extension	mp\n"
+		__ALT_SMP_ASM(
+			WASM(pldw)		"\t%a0",
+			WASM(pld)		"\t%a0"
+		)
+		:: "p" (ptr));
+}
+#endif
 #endif
 
 #define HAVE_ARCH_PICK_MMAP_LAYOUT
-- 
cgit 


From 9bb17be062de6f5a9c9643258951aa0935652ec3 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Tue, 2 Jul 2013 14:54:33 +0100
Subject: ARM: locks: prefetch the destination word for write prior to strex

The cost of changing a cacheline from shared to exclusive state can be
significant, especially when this is triggered by an exclusive store,
since it may result in having to retry the transaction.

This patch prefixes our {spin,read,write}_[try]lock implementations with
pldw instructions (on CPUs which support them) to try and grab the line
in exclusive state from the start. arch_rwlock_t is changed to avoid
using a volatile member, since this generates compiler warnings when
falling back on the __builtin_prefetch intrinsic which expects a const
void * argument.

Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 arch/arm/include/asm/spinlock.h       | 13 ++++++++++---
 arch/arm/include/asm/spinlock_types.h |  2 +-
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/arch/arm/include/asm/spinlock.h b/arch/arm/include/asm/spinlock.h
index e1ce45230913..499900781d59 100644
--- a/arch/arm/include/asm/spinlock.h
+++ b/arch/arm/include/asm/spinlock.h
@@ -5,7 +5,7 @@
 #error SMP not supported on pre-ARMv6 CPUs
 #endif
 
-#include <asm/processor.h>
+#include <linux/prefetch.h>
 
 /*
  * sev and wfe are ARMv6K extensions.  Uniprocessor ARMv6 may not have the K
@@ -70,6 +70,7 @@ static inline void arch_spin_lock(arch_spinlock_t *lock)
 	u32 newval;
 	arch_spinlock_t lockval;
 
+	prefetchw(&lock->slock);
 	__asm__ __volatile__(
 "1:	ldrex	%0, [%3]\n"
 "	add	%1, %0, %4\n"
@@ -93,6 +94,7 @@ static inline int arch_spin_trylock(arch_spinlock_t *lock)
 	unsigned long contended, res;
 	u32 slock;
 
+	prefetchw(&lock->slock);
 	do {
 		__asm__ __volatile__(
 		"	ldrex	%0, [%3]\n"
@@ -145,6 +147,7 @@ static inline void arch_write_lock(arch_rwlock_t *rw)
 {
 	unsigned long tmp;
 
+	prefetchw(&rw->lock);
 	__asm__ __volatile__(
 "1:	ldrex	%0, [%1]\n"
 "	teq	%0, #0\n"
@@ -163,6 +166,7 @@ static inline int arch_write_trylock(arch_rwlock_t *rw)
 {
 	unsigned long contended, res;
 
+	prefetchw(&rw->lock);
 	do {
 		__asm__ __volatile__(
 		"	ldrex	%0, [%2]\n"
@@ -196,7 +200,7 @@ static inline void arch_write_unlock(arch_rwlock_t *rw)
 }
 
 /* write_can_lock - would write_trylock() succeed? */
-#define arch_write_can_lock(x)		((x)->lock == 0)
+#define arch_write_can_lock(x)		(ACCESS_ONCE((x)->lock) == 0)
 
 /*
  * Read locks are a bit more hairy:
@@ -214,6 +218,7 @@ static inline void arch_read_lock(arch_rwlock_t *rw)
 {
 	unsigned long tmp, tmp2;
 
+	prefetchw(&rw->lock);
 	__asm__ __volatile__(
 "1:	ldrex	%0, [%2]\n"
 "	adds	%0, %0, #1\n"
@@ -234,6 +239,7 @@ static inline void arch_read_unlock(arch_rwlock_t *rw)
 
 	smp_mb();
 
+	prefetchw(&rw->lock);
 	__asm__ __volatile__(
 "1:	ldrex	%0, [%2]\n"
 "	sub	%0, %0, #1\n"
@@ -252,6 +258,7 @@ static inline int arch_read_trylock(arch_rwlock_t *rw)
 {
 	unsigned long contended, res;
 
+	prefetchw(&rw->lock);
 	do {
 		__asm__ __volatile__(
 		"	ldrex	%0, [%2]\n"
@@ -273,7 +280,7 @@ static inline int arch_read_trylock(arch_rwlock_t *rw)
 }
 
 /* read_can_lock - would read_trylock() succeed? */
-#define arch_read_can_lock(x)		((x)->lock < 0x80000000)
+#define arch_read_can_lock(x)		(ACCESS_ONCE((x)->lock) < 0x80000000)
 
 #define arch_read_lock_flags(lock, flags) arch_read_lock(lock)
 #define arch_write_lock_flags(lock, flags) arch_write_lock(lock)
diff --git a/arch/arm/include/asm/spinlock_types.h b/arch/arm/include/asm/spinlock_types.h
index b262d2f8b478..47663fcb10ad 100644
--- a/arch/arm/include/asm/spinlock_types.h
+++ b/arch/arm/include/asm/spinlock_types.h
@@ -25,7 +25,7 @@ typedef struct {
 #define __ARCH_SPIN_LOCK_UNLOCKED	{ { 0 } }
 
 typedef struct {
-	volatile unsigned int lock;
+	u32 lock;
 } arch_rwlock_t;
 
 #define __ARCH_RW_LOCK_UNLOCKED		{ 0 }
-- 
cgit 


From f38d999c4d16fc0fce4270374f15fbb2d8713c09 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Thu, 4 Jul 2013 11:43:18 +0100
Subject: ARM: atomics: prefetch the destination word for write prior to strex

The cost of changing a cacheline from shared to exclusive state can be
significant, especially when this is triggered by an exclusive store,
since it may result in having to retry the transaction.

This patch prefixes our atomic access implementations with pldw
instructions (on CPUs which support them) to try and grab the line in
exclusive state from the start. Only the barrier-less functions are
updated, since memory barriers can limit the usefulness of prefetching
data.

Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 arch/arm/include/asm/atomic.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
index da1c77d39327..55ffc3b850f4 100644
--- a/arch/arm/include/asm/atomic.h
+++ b/arch/arm/include/asm/atomic.h
@@ -12,6 +12,7 @@
 #define __ASM_ARM_ATOMIC_H
 
 #include <linux/compiler.h>
+#include <linux/prefetch.h>
 #include <linux/types.h>
 #include <linux/irqflags.h>
 #include <asm/barrier.h>
@@ -41,6 +42,7 @@ static inline void atomic_add(int i, atomic_t *v)
 	unsigned long tmp;
 	int result;
 
+	prefetchw(&v->counter);
 	__asm__ __volatile__("@ atomic_add\n"
 "1:	ldrex	%0, [%3]\n"
 "	add	%0, %0, %4\n"
@@ -79,6 +81,7 @@ static inline void atomic_sub(int i, atomic_t *v)
 	unsigned long tmp;
 	int result;
 
+	prefetchw(&v->counter);
 	__asm__ __volatile__("@ atomic_sub\n"
 "1:	ldrex	%0, [%3]\n"
 "	sub	%0, %0, %4\n"
@@ -138,6 +141,7 @@ static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
 {
 	unsigned long tmp, tmp2;
 
+	prefetchw(addr);
 	__asm__ __volatile__("@ atomic_clear_mask\n"
 "1:	ldrex	%0, [%3]\n"
 "	bic	%0, %0, %4\n"
@@ -283,6 +287,7 @@ static inline void atomic64_set(atomic64_t *v, u64 i)
 {
 	u64 tmp;
 
+	prefetchw(&v->counter);
 	__asm__ __volatile__("@ atomic64_set\n"
 "1:	ldrexd	%0, %H0, [%2]\n"
 "	strexd	%0, %3, %H3, [%2]\n"
@@ -299,6 +304,7 @@ static inline void atomic64_add(u64 i, atomic64_t *v)
 	u64 result;
 	unsigned long tmp;
 
+	prefetchw(&v->counter);
 	__asm__ __volatile__("@ atomic64_add\n"
 "1:	ldrexd	%0, %H0, [%3]\n"
 "	adds	%0, %0, %4\n"
@@ -339,6 +345,7 @@ static inline void atomic64_sub(u64 i, atomic64_t *v)
 	u64 result;
 	unsigned long tmp;
 
+	prefetchw(&v->counter);
 	__asm__ __volatile__("@ atomic64_sub\n"
 "1:	ldrexd	%0, %H0, [%3]\n"
 "	subs	%0, %0, %4\n"
-- 
cgit 


From d779c07dd72098a7416d907494f958213b7726f3 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Thu, 27 Jun 2013 12:01:51 +0100
Subject: ARM: bitops: prefetch the destination word for write prior to strex

The cost of changing a cacheline from shared to exclusive state can be
significant, especially when this is triggered by an exclusive store,
since it may result in having to retry the transaction.

This patch prefixes our atomic bitops implementation with prefetchw,
to try and grab the line in exclusive state from the start. The testop
macro is left alone, since the barrier semantics limit the usefulness
of prefetching data.

Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 arch/arm/lib/bitops.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/lib/bitops.h b/arch/arm/lib/bitops.h
index d6408d1ee543..e0c68d5bb7dc 100644
--- a/arch/arm/lib/bitops.h
+++ b/arch/arm/lib/bitops.h
@@ -10,6 +10,11 @@ UNWIND(	.fnstart	)
 	and	r3, r0, #31		@ Get bit offset
 	mov	r0, r0, lsr #5
 	add	r1, r1, r0, lsl #2	@ Get word offset
+#if __LINUX_ARM_ARCH__ >= 7
+	.arch_extension	mp
+	ALT_SMP(W(pldw)	[r1])
+	ALT_UP(W(nop))
+#endif
 	mov	r3, r2, lsl r3
 1:	ldrex	r2, [r1]
 	\instr	r2, r2, r3
-- 
cgit 


From d54322d8f69344d7248cfea038b5810fa2ba1b35 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Mon, 30 Sep 2013 17:38:06 +0200
Subject: ARM: at91: cam60: fix incorrect placement of __initdata tag

__initdata tag should be placed between the variable name and equal
sign for the variable to be placed in the intended .init.data section.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
 arch/arm/mach-at91/board-cam60.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-at91/board-cam60.c b/arch/arm/mach-at91/board-cam60.c
index ade948b82662..112e867c4abe 100644
--- a/arch/arm/mach-at91/board-cam60.c
+++ b/arch/arm/mach-at91/board-cam60.c
@@ -112,7 +112,7 @@ static struct spi_board_info cam60_spi_devices[] __initdata = {
 /*
  * MACB Ethernet device
  */
-static struct __initdata macb_platform_data cam60_macb_data = {
+static struct macb_platform_data cam60_macb_data __initdata = {
 	.phy_irq_pin	= AT91_PIN_PB5,
 	.is_rmii	= 0,
 };
-- 
cgit 


From b33daa6fc4f67dda5888119372051135a95e9947 Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Mon, 30 Sep 2013 09:08:07 -0700
Subject: ARM: ux500: enable appended dtb in u8500_defconfig

Churns the rest of the file a bit due to reordering of options, but the
only changes are:

CONFIG_ARM_APPENDED_DTB=y
CONFIG_ARM_ATAG_DTB_COMPAT=y

Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/configs/u8500_defconfig | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm/configs/u8500_defconfig b/arch/arm/configs/u8500_defconfig
index a0025dc13021..ac632cc38f24 100644
--- a/arch/arm/configs/u8500_defconfig
+++ b/arch/arm/configs/u8500_defconfig
@@ -1,4 +1,3 @@
-CONFIG_HIGHMEM=y
 # CONFIG_SWAP is not set
 CONFIG_SYSVIPC=y
 CONFIG_NO_HZ=y
@@ -16,6 +15,9 @@ CONFIG_SMP=y
 CONFIG_NR_CPUS=2
 CONFIG_PREEMPT=y
 CONFIG_AEABI=y
+CONFIG_HIGHMEM=y
+CONFIG_ARM_APPENDED_DTB=y
+CONFIG_ARM_ATAG_DTB_COMPAT=y
 CONFIG_CMDLINE="root=/dev/ram0 console=ttyAMA2,115200n8"
 CONFIG_CPU_FREQ=y
 CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
@@ -68,8 +70,8 @@ CONFIG_CPU_THERMAL=y
 CONFIG_WATCHDOG=y
 CONFIG_MFD_STMPE=y
 CONFIG_MFD_TC3589X=y
-CONFIG_REGULATOR_GPIO=y
 CONFIG_REGULATOR_AB8500=y
+CONFIG_REGULATOR_GPIO=y
 CONFIG_SOUND=y
 CONFIG_SND=y
 CONFIG_SND_SOC=y
@@ -78,10 +80,8 @@ CONFIG_SND_SOC_UX500_MACH_MOP500=y
 CONFIG_USB=y
 CONFIG_USB_MUSB_HDRC=y
 CONFIG_USB_MUSB_UX500=y
-CONFIG_USB_PHY=y
 CONFIG_AB8500_USB=y
 CONFIG_USB_GADGET=y
-CONFIG_USB_GADGET_MUSB_HDRC=y
 CONFIG_USB_ETH=m
 CONFIG_MMC=y
 CONFIG_MMC_UNSAFE_RESUME=y
@@ -116,12 +116,12 @@ CONFIG_NFS_FS=y
 CONFIG_ROOT_NFS=y
 CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_ISO8859_1=y
-CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_INFO=y
 CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_KERNEL=y
 # CONFIG_SCHED_DEBUG is not set
 # CONFIG_DEBUG_PREEMPT is not set
-CONFIG_DEBUG_INFO=y
 # CONFIG_FTRACE is not set
 CONFIG_DEBUG_USER=y
 CONFIG_CRYPTO_DEV_UX500=y
-- 
cgit 


From 7cc302d231aae87a08909ae40cdf36dfe7bb5102 Mon Sep 17 00:00:00 2001
From: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Date: Mon, 30 Sep 2013 17:08:15 +0300
Subject: ASoC: pcm: Remove extra spaces from dev_ prints

dev_ prints are already prefixed by ": " before format string so there is no
need for extra spaces.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/soc-pcm.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 330c9a6b5cb5..d4498723b375 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -721,7 +721,7 @@ static int dpcm_be_connect(struct snd_soc_pcm_runtime *fe,
 	list_add(&dpcm->list_be, &fe->dpcm[stream].be_clients);
 	list_add(&dpcm->list_fe, &be->dpcm[stream].fe_clients);
 
-	dev_dbg(fe->dev, "  connected new DPCM %s path %s %s %s\n",
+	dev_dbg(fe->dev, "connected new DPCM %s path %s %s %s\n",
 			stream ? "capture" : "playback",  fe->dai_link->name,
 			stream ? "<-" : "->", be->dai_link->name);
 
@@ -749,7 +749,7 @@ static void dpcm_be_reparent(struct snd_soc_pcm_runtime *fe,
 		if (dpcm->fe == fe)
 			continue;
 
-		dev_dbg(fe->dev, "  reparent %s path %s %s %s\n",
+		dev_dbg(fe->dev, "reparent %s path %s %s %s\n",
 			stream ? "capture" : "playback",
 			dpcm->fe->dai_link->name,
 			stream ? "<-" : "->", dpcm->be->dai_link->name);
@@ -773,7 +773,7 @@ static void dpcm_be_disconnect(struct snd_soc_pcm_runtime *fe, int stream)
 		if (dpcm->state != SND_SOC_DPCM_LINK_STATE_FREE)
 			continue;
 
-		dev_dbg(fe->dev, "  freed DSP %s path %s %s %s\n",
+		dev_dbg(fe->dev, "freed DSP %s path %s %s %s\n",
 			stream ? "capture" : "playback", fe->dai_link->name,
 			stream ? "<-" : "->", dpcm->be->dai_link->name);
 
@@ -2116,7 +2116,7 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
 
 	pcm->private_free = platform->driver->pcm_free;
 out:
-	dev_info(rtd->card->dev, " %s <-> %s mapping ok\n", codec_dai->name,
+	dev_info(rtd->card->dev, "%s <-> %s mapping ok\n", codec_dai->name,
 		cpu_dai->name);
 	return ret;
 }
-- 
cgit 


From fda5842cc62c36c5ed02b763f6045e720582b083 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 30 Sep 2013 09:50:14 +0900
Subject: regulator: ab3100: use devm_regulator_register()

Use devm_regulator_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/ab3100.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/regulator/ab3100.c b/drivers/regulator/ab3100.c
index 7d5eaa874b2d..77b46d0b37a6 100644
--- a/drivers/regulator/ab3100.c
+++ b/drivers/regulator/ab3100.c
@@ -535,7 +535,7 @@ static int ab3100_regulator_register(struct platform_device *pdev,
 	config.dev = &pdev->dev;
 	config.driver_data = reg;
 
-	rdev = regulator_register(desc, &config);
+	rdev = devm_regulator_register(&pdev->dev, desc, &config);
 	if (IS_ERR(rdev)) {
 		err = PTR_ERR(rdev);
 		dev_err(&pdev->dev,
@@ -616,7 +616,6 @@ static int ab3100_regulators_remove(struct platform_device *pdev)
 	for (i = 0; i < AB3100_NUM_REGULATORS; i++) {
 		struct ab3100_regulator *reg = &ab3100_regulators[i];
 
-		regulator_unregister(reg->rdev);
 		reg->rdev = NULL;
 	}
 	return 0;
-- 
cgit 


From a4a6b9de5c859ff953ce1b854cbfa112718a3f43 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 30 Sep 2013 09:52:37 +0900
Subject: regulator: ab8500-ext: use devm_regulator_register()

Use devm_regulator_register() to make cleanup paths simpler,
and remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/ab8500-ext.c | 26 ++------------------------
 1 file changed, 2 insertions(+), 24 deletions(-)

diff --git a/drivers/regulator/ab8500-ext.c b/drivers/regulator/ab8500-ext.c
index 02ff691cdb8b..29c0faaf8eba 100644
--- a/drivers/regulator/ab8500-ext.c
+++ b/drivers/regulator/ab8500-ext.c
@@ -413,16 +413,12 @@ static int ab8500_ext_regulator_probe(struct platform_device *pdev)
 			&pdata->ext_regulator[i];
 
 		/* register regulator with framework */
-		info->rdev = regulator_register(&info->desc, &config);
+		info->rdev = devm_regulator_register(&pdev->dev, &info->desc,
+						     &config);
 		if (IS_ERR(info->rdev)) {
 			err = PTR_ERR(info->rdev);
 			dev_err(&pdev->dev, "failed to register regulator %s\n",
 					info->desc.name);
-			/* when we fail, un-register all earlier regulators */
-			while (--i >= 0) {
-				info = &ab8500_ext_regulator_info[i];
-				regulator_unregister(info->rdev);
-			}
 			return err;
 		}
 
@@ -433,26 +429,8 @@ static int ab8500_ext_regulator_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int ab8500_ext_regulator_remove(struct platform_device *pdev)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(ab8500_ext_regulator_info); i++) {
-		struct ab8500_ext_regulator_info *info = NULL;
-		info = &ab8500_ext_regulator_info[i];
-
-		dev_vdbg(rdev_get_dev(info->rdev),
-			"%s-remove\n", info->desc.name);
-
-		regulator_unregister(info->rdev);
-	}
-
-	return 0;
-}
-
 static struct platform_driver ab8500_ext_regulator_driver = {
 	.probe = ab8500_ext_regulator_probe,
-	.remove = ab8500_ext_regulator_remove,
 	.driver         = {
 		.name   = "ab8500-ext-regulator",
 		.owner  = THIS_MODULE,
-- 
cgit 


From e97bba912eede5e813788bc9ead4a2c29130d377 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 30 Sep 2013 09:53:09 +0900
Subject: regulator: da9063: use devm_regulator_register()

Use devm_regulator_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/da9063-regulator.c | 21 ++++-----------------
 1 file changed, 4 insertions(+), 17 deletions(-)

diff --git a/drivers/regulator/da9063-regulator.c b/drivers/regulator/da9063-regulator.c
index 1a7816390773..62b846916e22 100644
--- a/drivers/regulator/da9063-regulator.c
+++ b/drivers/regulator/da9063-regulator.c
@@ -847,13 +847,13 @@ static int da9063_regulator_probe(struct platform_device *pdev)
 		if (da9063_reg_matches)
 			config.of_node = da9063_reg_matches[id].of_node;
 		config.regmap = da9063->regmap;
-		regl->rdev = regulator_register(&regl->desc, &config);
+		regl->rdev = devm_regulator_register(&pdev->dev, &regl->desc,
+						     &config);
 		if (IS_ERR(regl->rdev)) {
 			dev_err(&pdev->dev,
 				"Failed to register %s regulator\n",
 				regl->desc.name);
-			ret = PTR_ERR(regl->rdev);
-			goto err;
+			return PTR_ERR(regl->rdev);
 		}
 		id++;
 		n++;
@@ -862,9 +862,8 @@ static int da9063_regulator_probe(struct platform_device *pdev)
 	/* LDOs overcurrent event support */
 	irq = platform_get_irq_byname(pdev, "LDO_LIM");
 	if (irq < 0) {
-		ret = irq;
 		dev_err(&pdev->dev, "Failed to get IRQ.\n");
-		goto err;
+		return irq;
 	}
 
 	regulators->irq_ldo_lim = regmap_irq_get_virq(da9063->regmap_irq, irq);
@@ -881,27 +880,15 @@ static int da9063_regulator_probe(struct platform_device *pdev)
 	}
 
 	return 0;
-
-err:
-	/* Wind back regulators registeration */
-	while (--n >= 0)
-		regulator_unregister(regulators->regulator[n].rdev);
-
-	return ret;
 }
 
 static int da9063_regulator_remove(struct platform_device *pdev)
 {
 	struct da9063_regulators *regulators = platform_get_drvdata(pdev);
-	struct da9063_regulator *regl;
 
 	free_irq(regulators->irq_ldo_lim, regulators);
 	free_irq(regulators->irq_uvov, regulators);
 
-	for (regl = &regulators->regulator[regulators->n_regulators - 1];
-	     regl >= &regulators->regulator[0]; regl--)
-		regulator_unregister(regl->rdev);
-
 	return 0;
 }
 
-- 
cgit 


From ed602534df5d07251c074bafe75feed643c588d1 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 30 Sep 2013 09:54:34 +0900
Subject: regulator: lp872x: use devm_regulator_register()

Use devm_regulator_register() to make cleanup paths simpler,
and remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/lp872x.c | 33 +++------------------------------
 1 file changed, 3 insertions(+), 30 deletions(-)

diff --git a/drivers/regulator/lp872x.c b/drivers/regulator/lp872x.c
index 2b84b727a3c4..2e4734ff79fc 100644
--- a/drivers/regulator/lp872x.c
+++ b/drivers/regulator/lp872x.c
@@ -785,7 +785,7 @@ static int lp872x_regulator_register(struct lp872x *lp)
 	struct regulator_desc *desc;
 	struct regulator_config cfg = { };
 	struct regulator_dev *rdev;
-	int i, ret;
+	int i;
 
 	for (i = 0; i < lp->num_regulators; i++) {
 		desc = (lp->chipid == LP8720) ? &lp8720_regulator_desc[i] :
@@ -796,34 +796,16 @@ static int lp872x_regulator_register(struct lp872x *lp)
 		cfg.driver_data = lp;
 		cfg.regmap = lp->regmap;
 
-		rdev = regulator_register(desc, &cfg);
+		rdev = devm_regulator_register(lp->dev, desc, &cfg);
 		if (IS_ERR(rdev)) {
 			dev_err(lp->dev, "regulator register err");
-			ret =  PTR_ERR(rdev);
-			goto err;
+			return PTR_ERR(rdev);
 		}
 
 		*(lp->regulators + i) = rdev;
 	}
 
 	return 0;
-err:
-	while (--i >= 0) {
-		rdev = *(lp->regulators + i);
-		regulator_unregister(rdev);
-	}
-	return ret;
-}
-
-static void lp872x_regulator_unregister(struct lp872x *lp)
-{
-	struct regulator_dev *rdev;
-	int i;
-
-	for (i = 0; i < lp->num_regulators; i++) {
-		rdev = *(lp->regulators + i);
-		regulator_unregister(rdev);
-	}
 }
 
 static const struct regmap_config lp872x_regmap_config = {
@@ -979,14 +961,6 @@ err_dev:
 	return ret;
 }
 
-static int lp872x_remove(struct i2c_client *cl)
-{
-	struct lp872x *lp = i2c_get_clientdata(cl);
-
-	lp872x_regulator_unregister(lp);
-	return 0;
-}
-
 static const struct of_device_id lp872x_dt_ids[] = {
 	{ .compatible = "ti,lp8720", },
 	{ .compatible = "ti,lp8725", },
@@ -1008,7 +982,6 @@ static struct i2c_driver lp872x_driver = {
 		.of_match_table = of_match_ptr(lp872x_dt_ids),
 	},
 	.probe = lp872x_probe,
-	.remove = lp872x_remove,
 	.id_table = lp872x_ids,
 };
 
-- 
cgit 


From 3343fa174883b89c0151dac24df86e351eca85e4 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 30 Sep 2013 09:55:12 +0900
Subject: regulator: lp8788-buck: use devm_regulator_register()

Use devm_regulator_register() to make cleanup paths simpler,
and remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/lp8788-buck.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/regulator/lp8788-buck.c b/drivers/regulator/lp8788-buck.c
index 0b015f2a7fd9..948afc249e29 100644
--- a/drivers/regulator/lp8788-buck.c
+++ b/drivers/regulator/lp8788-buck.c
@@ -515,7 +515,7 @@ static int lp8788_buck_probe(struct platform_device *pdev)
 	cfg.driver_data = buck;
 	cfg.regmap = lp->regmap;
 
-	rdev = regulator_register(&lp8788_buck_desc[id], &cfg);
+	rdev = devm_regulator_register(&pdev->dev, &lp8788_buck_desc[id], &cfg);
 	if (IS_ERR(rdev)) {
 		ret = PTR_ERR(rdev);
 		dev_err(&pdev->dev, "BUCK%d regulator register err = %d\n",
@@ -529,18 +529,8 @@ static int lp8788_buck_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int lp8788_buck_remove(struct platform_device *pdev)
-{
-	struct lp8788_buck *buck = platform_get_drvdata(pdev);
-
-	regulator_unregister(buck->regulator);
-
-	return 0;
-}
-
 static struct platform_driver lp8788_buck_driver = {
 	.probe = lp8788_buck_probe,
-	.remove = lp8788_buck_remove,
 	.driver = {
 		.name = LP8788_DEV_BUCK,
 		.owner = THIS_MODULE,
-- 
cgit 


From 0b7bb09054aebe66fd803c8f88015046b96cb47f Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 30 Sep 2013 09:55:51 +0900
Subject: regulator: lp8788-ldo: use devm_regulator_register()

Use devm_regulator_register() to make cleanup paths simpler,
and remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/lp8788-ldo.c | 24 ++----------------------
 1 file changed, 2 insertions(+), 22 deletions(-)

diff --git a/drivers/regulator/lp8788-ldo.c b/drivers/regulator/lp8788-ldo.c
index 0527d87c6dd5..b9a29a29933f 100644
--- a/drivers/regulator/lp8788-ldo.c
+++ b/drivers/regulator/lp8788-ldo.c
@@ -543,7 +543,7 @@ static int lp8788_dldo_probe(struct platform_device *pdev)
 	cfg.driver_data = ldo;
 	cfg.regmap = lp->regmap;
 
-	rdev = regulator_register(&lp8788_dldo_desc[id], &cfg);
+	rdev = devm_regulator_register(&pdev->dev, &lp8788_dldo_desc[id], &cfg);
 	if (IS_ERR(rdev)) {
 		ret = PTR_ERR(rdev);
 		dev_err(&pdev->dev, "DLDO%d regulator register err = %d\n",
@@ -557,18 +557,8 @@ static int lp8788_dldo_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int lp8788_dldo_remove(struct platform_device *pdev)
-{
-	struct lp8788_ldo *ldo = platform_get_drvdata(pdev);
-
-	regulator_unregister(ldo->regulator);
-
-	return 0;
-}
-
 static struct platform_driver lp8788_dldo_driver = {
 	.probe = lp8788_dldo_probe,
-	.remove = lp8788_dldo_remove,
 	.driver = {
 		.name = LP8788_DEV_DLDO,
 		.owner = THIS_MODULE,
@@ -603,7 +593,7 @@ static int lp8788_aldo_probe(struct platform_device *pdev)
 	cfg.driver_data = ldo;
 	cfg.regmap = lp->regmap;
 
-	rdev = regulator_register(&lp8788_aldo_desc[id], &cfg);
+	rdev = devm_regulator_register(&pdev->dev, &lp8788_aldo_desc[id], &cfg);
 	if (IS_ERR(rdev)) {
 		ret = PTR_ERR(rdev);
 		dev_err(&pdev->dev, "ALDO%d regulator register err = %d\n",
@@ -617,18 +607,8 @@ static int lp8788_aldo_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int lp8788_aldo_remove(struct platform_device *pdev)
-{
-	struct lp8788_ldo *ldo = platform_get_drvdata(pdev);
-
-	regulator_unregister(ldo->regulator);
-
-	return 0;
-}
-
 static struct platform_driver lp8788_aldo_driver = {
 	.probe = lp8788_aldo_probe,
-	.remove = lp8788_aldo_remove,
 	.driver = {
 		.name = LP8788_DEV_ALDO,
 		.owner = THIS_MODULE,
-- 
cgit 


From 58765e24bec8940082068829a9d2c3a4431d60c0 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 30 Sep 2013 09:56:24 +0900
Subject: regulator: max8925: use devm_regulator_register()

Use devm_regulator_register() to make cleanup paths simpler,
and remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/max8925-regulator.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/regulator/max8925-regulator.c b/drivers/regulator/max8925-regulator.c
index d80b5fa758ae..759510789e71 100644
--- a/drivers/regulator/max8925-regulator.c
+++ b/drivers/regulator/max8925-regulator.c
@@ -312,7 +312,7 @@ static int max8925_regulator_probe(struct platform_device *pdev)
 		if (pdata)
 			config.init_data = pdata;
 
-	rdev = regulator_register(&ri->desc, &config);
+	rdev = devm_regulator_register(&pdev->dev, &ri->desc, &config);
 	if (IS_ERR(rdev)) {
 		dev_err(&pdev->dev, "failed to register regulator %s\n",
 				ri->desc.name);
@@ -323,22 +323,12 @@ static int max8925_regulator_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int max8925_regulator_remove(struct platform_device *pdev)
-{
-	struct regulator_dev *rdev = platform_get_drvdata(pdev);
-
-	regulator_unregister(rdev);
-
-	return 0;
-}
-
 static struct platform_driver max8925_regulator_driver = {
 	.driver		= {
 		.name	= "max8925-regulator",
 		.owner	= THIS_MODULE,
 	},
 	.probe		= max8925_regulator_probe,
-	.remove		= max8925_regulator_remove,
 };
 
 static int __init max8925_regulator_init(void)
-- 
cgit 


From 15dc006af830d85417c97b60a40b5a0b991ee32e Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 30 Sep 2013 09:56:55 +0900
Subject: regulator: pcap: use devm_regulator_register()

Use devm_regulator_register() to make cleanup paths simpler,
and remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/pcap-regulator.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/regulator/pcap-regulator.c b/drivers/regulator/pcap-regulator.c
index b49eaeedea84..3727b7d0e9ac 100644
--- a/drivers/regulator/pcap-regulator.c
+++ b/drivers/regulator/pcap-regulator.c
@@ -246,7 +246,8 @@ static int pcap_regulator_probe(struct platform_device *pdev)
 	config.init_data = dev_get_platdata(&pdev->dev);
 	config.driver_data = pcap;
 
-	rdev = regulator_register(&pcap_regulators[pdev->id], &config);
+	rdev = devm_regulator_register(&pdev->dev, &pcap_regulators[pdev->id],
+				       &config);
 	if (IS_ERR(rdev))
 		return PTR_ERR(rdev);
 
@@ -255,22 +256,12 @@ static int pcap_regulator_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int pcap_regulator_remove(struct platform_device *pdev)
-{
-	struct regulator_dev *rdev = platform_get_drvdata(pdev);
-
-	regulator_unregister(rdev);
-
-	return 0;
-}
-
 static struct platform_driver pcap_regulator_driver = {
 	.driver = {
 		.name	= "pcap-regulator",
 		.owner	= THIS_MODULE,
 	},
 	.probe	= pcap_regulator_probe,
-	.remove	= pcap_regulator_remove,
 };
 
 static int __init pcap_regulator_init(void)
-- 
cgit 


From 5e0165e5a91db2283e694023582c0fc23311ae59 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 30 Sep 2013 09:57:23 +0900
Subject: regulator: pcf50633: use devm_regulator_register()

Use devm_regulator_register() to make cleanup paths simpler,
and remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/pcf50633-regulator.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/regulator/pcf50633-regulator.c b/drivers/regulator/pcf50633-regulator.c
index 0f3576d48abf..d7da1c15a6da 100644
--- a/drivers/regulator/pcf50633-regulator.c
+++ b/drivers/regulator/pcf50633-regulator.c
@@ -90,7 +90,8 @@ static int pcf50633_regulator_probe(struct platform_device *pdev)
 	config.driver_data = pcf;
 	config.regmap = pcf->regmap;
 
-	rdev = regulator_register(&regulators[pdev->id], &config);
+	rdev = devm_regulator_register(&pdev->dev, &regulators[pdev->id],
+				       &config);
 	if (IS_ERR(rdev))
 		return PTR_ERR(rdev);
 
@@ -102,21 +103,11 @@ static int pcf50633_regulator_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int pcf50633_regulator_remove(struct platform_device *pdev)
-{
-	struct regulator_dev *rdev = platform_get_drvdata(pdev);
-
-	regulator_unregister(rdev);
-
-	return 0;
-}
-
 static struct platform_driver pcf50633_regulator_driver = {
 	.driver = {
 		.name = "pcf50633-regltr",
 	},
 	.probe = pcf50633_regulator_probe,
-	.remove = pcf50633_regulator_remove,
 };
 
 static int __init pcf50633_regulator_init(void)
-- 
cgit 


From 6a2b5a931f31c91cc2e261d99af7b3d881a41d86 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 30 Sep 2013 09:57:54 +0900
Subject: regulator: tps6105x: use devm_regulator_register()

Use devm_regulator_register() to make cleanup paths simpler,
and remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/tps6105x-regulator.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/regulator/tps6105x-regulator.c b/drivers/regulator/tps6105x-regulator.c
index ec9453ffb77f..e0e818d89f46 100644
--- a/drivers/regulator/tps6105x-regulator.c
+++ b/drivers/regulator/tps6105x-regulator.c
@@ -146,8 +146,9 @@ static int tps6105x_regulator_probe(struct platform_device *pdev)
 	config.driver_data = tps6105x;
 
 	/* Register regulator with framework */
-	tps6105x->regulator = regulator_register(&tps6105x_regulator_desc,
-						 &config);
+	tps6105x->regulator = devm_regulator_register(&pdev->dev,
+						      &tps6105x_regulator_desc,
+						      &config);
 	if (IS_ERR(tps6105x->regulator)) {
 		ret = PTR_ERR(tps6105x->regulator);
 		dev_err(&tps6105x->client->dev,
@@ -159,20 +160,12 @@ static int tps6105x_regulator_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int tps6105x_regulator_remove(struct platform_device *pdev)
-{
-	struct tps6105x *tps6105x = dev_get_platdata(&pdev->dev);
-	regulator_unregister(tps6105x->regulator);
-	return 0;
-}
-
 static struct platform_driver tps6105x_regulator_driver = {
 	.driver = {
 		.name  = "tps6105x-regulator",
 		.owner = THIS_MODULE,
 	},
 	.probe = tps6105x_regulator_probe,
-	.remove = tps6105x_regulator_remove,
 };
 
 static __init int tps6105x_regulator_init(void)
-- 
cgit 


From 00ce070e51f96ee4c942b44d63b7a15f5b777fd6 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 30 Sep 2013 09:59:04 +0900
Subject: regulator: twl: use devm_regulator_register()

Use devm_regulator_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/twl-regulator.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/regulator/twl-regulator.c b/drivers/regulator/twl-regulator.c
index 78aae4cbb004..8ebd785485c7 100644
--- a/drivers/regulator/twl-regulator.c
+++ b/drivers/regulator/twl-regulator.c
@@ -1188,7 +1188,7 @@ static int twlreg_probe(struct platform_device *pdev)
 	config.driver_data = info;
 	config.of_node = pdev->dev.of_node;
 
-	rdev = regulator_register(&info->desc, &config);
+	rdev = devm_regulator_register(&pdev->dev, &info->desc, &config);
 	if (IS_ERR(rdev)) {
 		dev_err(&pdev->dev, "can't register %s, %ld\n",
 				info->desc.name, PTR_ERR(rdev));
@@ -1217,7 +1217,6 @@ static int twlreg_remove(struct platform_device *pdev)
 	struct regulator_dev *rdev = platform_get_drvdata(pdev);
 	struct twlreg_info *info = rdev->reg_data;
 
-	regulator_unregister(rdev);
 	kfree(info);
 	return 0;
 }
-- 
cgit 


From abf92a3d2e868fef808d4a205371b7e5417dd0f7 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 30 Sep 2013 09:59:31 +0900
Subject: regulator: vexpress: use devm_regulator_register()

Use devm_regulator_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/vexpress.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/regulator/vexpress.c b/drivers/regulator/vexpress.c
index 4668c7f8133d..f3ae28a7e663 100644
--- a/drivers/regulator/vexpress.c
+++ b/drivers/regulator/vexpress.c
@@ -96,7 +96,7 @@ static int vexpress_regulator_probe(struct platform_device *pdev)
 	config.driver_data = reg;
 	config.of_node = pdev->dev.of_node;
 
-	reg->regdev = regulator_register(&reg->desc, &config);
+	reg->regdev = devm_regulator_register(&pdev->dev, &reg->desc, &config);
 	if (IS_ERR(reg->regdev)) {
 		err = PTR_ERR(reg->regdev);
 		goto error_regulator_register;
@@ -119,7 +119,6 @@ static int vexpress_regulator_remove(struct platform_device *pdev)
 	struct vexpress_regulator *reg = platform_get_drvdata(pdev);
 
 	vexpress_config_func_put(reg->func);
-	regulator_unregister(reg->regdev);
 
 	return 0;
 }
-- 
cgit 


From 11c0da7bb414505ff9a157af2b1301877a3726bd Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 30 Sep 2013 09:53:57 +0900
Subject: regulator: da9210: use devm_regulator_register()

Use devm_regulator_register() to make cleanup paths simpler,
and remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/da9210-regulator.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/regulator/da9210-regulator.c b/drivers/regulator/da9210-regulator.c
index f7ccff14f763..6f5ecbe1132e 100644
--- a/drivers/regulator/da9210-regulator.c
+++ b/drivers/regulator/da9210-regulator.c
@@ -155,7 +155,7 @@ static int da9210_i2c_probe(struct i2c_client *i2c,
 	config.regmap = chip->regmap;
 	config.of_node = dev->of_node;
 
-	rdev = regulator_register(&da9210_reg, &config);
+	rdev = devm_regulator_register(&i2c->dev, &da9210_reg, &config);
 	if (IS_ERR(rdev)) {
 		dev_err(&i2c->dev, "Failed to register DA9210 regulator\n");
 		return PTR_ERR(rdev);
@@ -168,13 +168,6 @@ static int da9210_i2c_probe(struct i2c_client *i2c,
 	return 0;
 }
 
-static int da9210_i2c_remove(struct i2c_client *i2c)
-{
-	struct da9210 *chip = i2c_get_clientdata(i2c);
-	regulator_unregister(chip->rdev);
-	return 0;
-}
-
 static const struct i2c_device_id da9210_i2c_id[] = {
 	{"da9210", 0},
 	{},
@@ -188,7 +181,6 @@ static struct i2c_driver da9210_regulator_driver = {
 		.owner = THIS_MODULE,
 	},
 	.probe = da9210_i2c_probe,
-	.remove = da9210_i2c_remove,
 	.id_table = da9210_i2c_id,
 };
 
-- 
cgit 


From 5e0855759ca621bba454747fc1b5b76a7290f50f Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 30 Sep 2013 09:58:36 +0900
Subject: regulator: tps6524x: use devm_regulator_register()

Use devm_regulator_register() to make cleanup paths simpler,
and remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/tps6524x-regulator.c | 31 +++++--------------------------
 1 file changed, 5 insertions(+), 26 deletions(-)

diff --git a/drivers/regulator/tps6524x-regulator.c b/drivers/regulator/tps6524x-regulator.c
index 8b9ee3983a6c..9f6bfda711b7 100644
--- a/drivers/regulator/tps6524x-regulator.c
+++ b/drivers/regulator/tps6524x-regulator.c
@@ -577,20 +577,6 @@ static struct regulator_ops regulator_ops = {
 	.get_current_limit	= get_current_limit,
 };
 
-static int pmic_remove(struct spi_device *spi)
-{
-	struct tps6524x *hw = spi_get_drvdata(spi);
-	int i;
-
-	if (!hw)
-		return 0;
-	for (i = 0; i < N_REGULATORS; i++) {
-		regulator_unregister(hw->rdev[i]);
-		hw->rdev[i] = NULL;
-	}
-	return 0;
-}
-
 static int pmic_probe(struct spi_device *spi)
 {
 	struct tps6524x *hw;
@@ -598,7 +584,7 @@ static int pmic_probe(struct spi_device *spi)
 	const struct supply_info *info = supply_info;
 	struct regulator_init_data *init_data;
 	struct regulator_config config = { };
-	int ret = 0, i;
+	int i;
 
 	init_data = dev_get_platdata(dev);
 	if (!init_data) {
@@ -631,24 +617,17 @@ static int pmic_probe(struct spi_device *spi)
 		config.init_data = init_data;
 		config.driver_data = hw;
 
-		hw->rdev[i] = regulator_register(&hw->desc[i], &config);
-		if (IS_ERR(hw->rdev[i])) {
-			ret = PTR_ERR(hw->rdev[i]);
-			hw->rdev[i] = NULL;
-			goto fail;
-		}
+		hw->rdev[i] = devm_regulator_register(dev, &hw->desc[i],
+						      &config);
+		if (IS_ERR(hw->rdev[i]))
+			return PTR_ERR(hw->rdev[i]);
 	}
 
 	return 0;
-
-fail:
-	pmic_remove(spi);
-	return ret;
 }
 
 static struct spi_driver pmic_driver = {
 	.probe		= pmic_probe,
-	.remove		= pmic_remove,
 	.driver		= {
 		.name	= "tps6524x",
 		.owner	= THIS_MODULE,
-- 
cgit 


From 6b68f03f95e3f0aeea0c47799aecb296276a7cd6 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Fri, 13 Sep 2013 13:13:30 +0800
Subject: ACPI / IPMI: Fix potential response buffer overflow

This patch enhances sanity checks on message size to avoid potential buffer
overflow.

The kernel IPMI message size is IPMI_MAX_MSG_LENGTH(272 bytes) while the
ACPI specification defined IPMI message size is 64 bytes.  The difference
is not handled by the original codes.  This may cause crash in the response
handling codes.

This patch closes this gap and also combines rx_data/tx_data to use single
data/len pair since they need not be seperate.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_ipmi.c | 53 ++++++++++++++++++++++++++++++------------------
 1 file changed, 33 insertions(+), 20 deletions(-)

diff --git a/drivers/acpi/acpi_ipmi.c b/drivers/acpi/acpi_ipmi.c
index a6977e12d574..7397135702db 100644
--- a/drivers/acpi/acpi_ipmi.c
+++ b/drivers/acpi/acpi_ipmi.c
@@ -52,6 +52,7 @@ MODULE_LICENSE("GPL");
 #define ACPI_IPMI_UNKNOWN		0x07
 /* the IPMI timeout is 5s */
 #define IPMI_TIMEOUT			(5 * HZ)
+#define ACPI_IPMI_MAX_MSG_LENGTH	64
 
 struct acpi_ipmi_device {
 	/* the device list attached to driver_data.ipmi_devices */
@@ -90,11 +91,9 @@ struct acpi_ipmi_msg {
 	struct completion tx_complete;
 	struct kernel_ipmi_msg tx_message;
 	int	msg_done;
-	/* tx data . And copy it from ACPI object buffer */
-	u8	tx_data[64];
-	int	tx_len;
-	u8	rx_data[64];
-	int	rx_len;
+	/* tx/rx data . And copy it from/to ACPI object buffer */
+	u8	data[ACPI_IPMI_MAX_MSG_LENGTH];
+	u8	rx_len;
 	struct acpi_ipmi_device *device;
 };
 
@@ -102,7 +101,7 @@ struct acpi_ipmi_msg {
 struct acpi_ipmi_buffer {
 	u8 status;
 	u8 length;
-	u8 data[64];
+	u8 data[ACPI_IPMI_MAX_MSG_LENGTH];
 };
 
 static void ipmi_register_bmc(int iface, struct device *dev);
@@ -141,7 +140,7 @@ static struct acpi_ipmi_msg *acpi_alloc_ipmi_msg(struct acpi_ipmi_device *ipmi)
 
 #define		IPMI_OP_RGN_NETFN(offset)	((offset >> 8) & 0xff)
 #define		IPMI_OP_RGN_CMD(offset)		(offset & 0xff)
-static void acpi_format_ipmi_msg(struct acpi_ipmi_msg *tx_msg,
+static int acpi_format_ipmi_request(struct acpi_ipmi_msg *tx_msg,
 				acpi_physical_address address,
 				acpi_integer *value)
 {
@@ -157,15 +156,21 @@ static void acpi_format_ipmi_msg(struct acpi_ipmi_msg *tx_msg,
 	 */
 	msg->netfn = IPMI_OP_RGN_NETFN(address);
 	msg->cmd = IPMI_OP_RGN_CMD(address);
-	msg->data = tx_msg->tx_data;
+	msg->data = tx_msg->data;
 	/*
 	 * value is the parameter passed by the IPMI opregion space handler.
 	 * It points to the IPMI request message buffer
 	 */
 	buffer = (struct acpi_ipmi_buffer *)value;
 	/* copy the tx message data */
+	if (buffer->length > ACPI_IPMI_MAX_MSG_LENGTH) {
+		dev_WARN_ONCE(&tx_msg->device->pnp_dev->dev, true,
+			      "Unexpected request (msg len %d).\n",
+			      buffer->length);
+		return -EINVAL;
+	}
 	msg->data_len = buffer->length;
-	memcpy(tx_msg->tx_data, buffer->data, msg->data_len);
+	memcpy(tx_msg->data, buffer->data, msg->data_len);
 	/*
 	 * now the default type is SYSTEM_INTERFACE and channel type is BMC.
 	 * If the netfn is APP_REQUEST and the cmd is SEND_MESSAGE,
@@ -183,6 +188,7 @@ static void acpi_format_ipmi_msg(struct acpi_ipmi_msg *tx_msg,
 	device->curr_msgid++;
 	tx_msg->tx_msgid = device->curr_msgid;
 	spin_unlock_irqrestore(&device->tx_msg_lock, flags);
+	return 0;
 }
 
 static void acpi_format_ipmi_response(struct acpi_ipmi_msg *msg,
@@ -214,7 +220,7 @@ static void acpi_format_ipmi_response(struct acpi_ipmi_msg *msg,
 	 */
 	buffer->status = ACPI_IPMI_OK;
 	buffer->length = msg->rx_len;
-	memcpy(buffer->data, msg->rx_data, msg->rx_len);
+	memcpy(buffer->data, msg->data, msg->rx_len);
 }
 
 static void ipmi_flush_tx_msg(struct acpi_ipmi_device *ipmi)
@@ -250,8 +256,7 @@ static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
 		dev_warn(&pnp_dev->dev, "Unexpected response is returned. "
 			"returned user %p, expected user %p\n",
 			msg->user, ipmi_device->user_interface);
-		ipmi_free_recv_msg(msg);
-		return;
+		goto out_msg;
 	}
 	spin_lock_irqsave(&ipmi_device->tx_msg_lock, flags);
 	list_for_each_entry(tx_msg, &ipmi_device->tx_msg_list, head) {
@@ -265,17 +270,21 @@ static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
 	if (!msg_found) {
 		dev_warn(&pnp_dev->dev, "Unexpected response (msg id %ld) is "
 			"returned.\n", msg->msgid);
-		ipmi_free_recv_msg(msg);
-		return;
+		goto out_msg;
 	}
 
-	if (msg->msg.data_len) {
-		/* copy the response data to Rx_data buffer */
-		memcpy(tx_msg->rx_data, msg->msg_data, msg->msg.data_len);
+	/* copy the response data to Rx_data buffer */
+	if (msg->msg.data_len > ACPI_IPMI_MAX_MSG_LENGTH) {
+		dev_WARN_ONCE(&pnp_dev->dev, true,
+			      "Unexpected response (msg len %d).\n",
+			      msg->msg.data_len);
+	} else {
 		tx_msg->rx_len = msg->msg.data_len;
+		memcpy(tx_msg->data, msg->msg.data, tx_msg->rx_len);
 		tx_msg->msg_done = 1;
 	}
 	complete(&tx_msg->tx_complete);
+out_msg:
 	ipmi_free_recv_msg(msg);
 };
 
@@ -398,7 +407,10 @@ acpi_ipmi_space_handler(u32 function, acpi_physical_address address,
 	if (!tx_msg)
 		return AE_NO_MEMORY;
 
-	acpi_format_ipmi_msg(tx_msg, address, value);
+	if (acpi_format_ipmi_request(tx_msg, address, value) != 0) {
+		status = AE_TYPE;
+		goto out_msg;
+	}
 	spin_lock_irqsave(&ipmi_device->tx_msg_lock, flags);
 	list_add_tail(&tx_msg->head, &ipmi_device->tx_msg_list);
 	spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags);
@@ -409,17 +421,18 @@ acpi_ipmi_space_handler(u32 function, acpi_physical_address address,
 					NULL, 0, 0, 0);
 	if (err) {
 		status = AE_ERROR;
-		goto end_label;
+		goto out_list;
 	}
 	rem_time = wait_for_completion_timeout(&tx_msg->tx_complete,
 					IPMI_TIMEOUT);
 	acpi_format_ipmi_response(tx_msg, value, rem_time);
 	status = AE_OK;
 
-end_label:
+out_list:
 	spin_lock_irqsave(&ipmi_device->tx_msg_lock, flags);
 	list_del(&tx_msg->head);
 	spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags);
+out_msg:
 	kfree(tx_msg);
 	return status;
 }
-- 
cgit 


From 5ac557ef4951ea4b131ae45b08434546cb386ac5 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Fri, 13 Sep 2013 13:13:39 +0800
Subject: ACPI / IPMI: Fix race caused by the unprotected ACPI IPMI transfers

This patch fixes races caused by unprotected ACPI IPMI transfers.

We can see that the following crashes may occur:
 1. There is no tx_msg_lock held for iterating tx_msg_list in
    ipmi_flush_tx_msg() while it may be unlinked on failure in
    parallel in acpi_ipmi_space_handler() under tx_msg_lock.
 2. There is no lock held for freeing tx_msg in acpi_ipmi_space_handler()
    while it may be accessed in parallel in ipmi_flush_tx_msg() and
    ipmi_msg_handler().

This patch enhances tx_msg_lock to protect all tx_msg accesses to solve
this issue.  Then tx_msg_lock is always held around complete() and tx_msg
accesses.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_ipmi.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/acpi_ipmi.c b/drivers/acpi/acpi_ipmi.c
index 7397135702db..87307baeafab 100644
--- a/drivers/acpi/acpi_ipmi.c
+++ b/drivers/acpi/acpi_ipmi.c
@@ -228,11 +228,14 @@ static void ipmi_flush_tx_msg(struct acpi_ipmi_device *ipmi)
 	struct acpi_ipmi_msg *tx_msg, *temp;
 	int count = HZ / 10;
 	struct pnp_dev *pnp_dev = ipmi->pnp_dev;
+	unsigned long flags;
 
+	spin_lock_irqsave(&ipmi->tx_msg_lock, flags);
 	list_for_each_entry_safe(tx_msg, temp, &ipmi->tx_msg_list, head) {
 		/* wake up the sleep thread on the Tx msg */
 		complete(&tx_msg->tx_complete);
 	}
+	spin_unlock_irqrestore(&ipmi->tx_msg_lock, flags);
 
 	/* wait for about 100ms to flush the tx message list */
 	while (count--) {
@@ -266,11 +269,10 @@ static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
 		}
 	}
 
-	spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags);
 	if (!msg_found) {
 		dev_warn(&pnp_dev->dev, "Unexpected response (msg id %ld) is "
 			"returned.\n", msg->msgid);
-		goto out_msg;
+		goto out_lock;
 	}
 
 	/* copy the response data to Rx_data buffer */
@@ -284,6 +286,8 @@ static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
 		tx_msg->msg_done = 1;
 	}
 	complete(&tx_msg->tx_complete);
+out_lock:
+	spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags);
 out_msg:
 	ipmi_free_recv_msg(msg);
 };
-- 
cgit 


From 8584ec6ae9cc386de344e0d33b60f76368bb73ab Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Fri, 13 Sep 2013 13:13:47 +0800
Subject: ACPI / IPMI: Fix race caused by the timed out ACPI IPMI transfers

This patch fixes races caused by timed out ACPI IPMI transfers.

This patch uses timeout mechanism provided by ipmi_si to avoid the race
that the msg_done flag is set but without any protection, its content can
be invalid.  Thanks for the suggestion of Corey Minyard.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_ipmi.c | 49 ++++++++++++++++++++++++++----------------------
 1 file changed, 27 insertions(+), 22 deletions(-)

diff --git a/drivers/acpi/acpi_ipmi.c b/drivers/acpi/acpi_ipmi.c
index 87307baeafab..9171a1a668f2 100644
--- a/drivers/acpi/acpi_ipmi.c
+++ b/drivers/acpi/acpi_ipmi.c
@@ -51,7 +51,7 @@ MODULE_LICENSE("GPL");
 #define ACPI_IPMI_TIMEOUT		0x10
 #define ACPI_IPMI_UNKNOWN		0x07
 /* the IPMI timeout is 5s */
-#define IPMI_TIMEOUT			(5 * HZ)
+#define IPMI_TIMEOUT			(5000)
 #define ACPI_IPMI_MAX_MSG_LENGTH	64
 
 struct acpi_ipmi_device {
@@ -135,6 +135,7 @@ static struct acpi_ipmi_msg *acpi_alloc_ipmi_msg(struct acpi_ipmi_device *ipmi)
 	init_completion(&ipmi_msg->tx_complete);
 	INIT_LIST_HEAD(&ipmi_msg->head);
 	ipmi_msg->device = ipmi;
+	ipmi_msg->msg_done = ACPI_IPMI_UNKNOWN;
 	return ipmi_msg;
 }
 
@@ -192,7 +193,7 @@ static int acpi_format_ipmi_request(struct acpi_ipmi_msg *tx_msg,
 }
 
 static void acpi_format_ipmi_response(struct acpi_ipmi_msg *msg,
-		acpi_integer *value, int rem_time)
+		acpi_integer *value)
 {
 	struct acpi_ipmi_buffer *buffer;
 
@@ -201,24 +202,17 @@ static void acpi_format_ipmi_response(struct acpi_ipmi_msg *msg,
 	 * IPMI message returned by IPMI command.
 	 */
 	buffer = (struct acpi_ipmi_buffer *)value;
-	if (!rem_time && !msg->msg_done) {
-		buffer->status = ACPI_IPMI_TIMEOUT;
-		return;
-	}
 	/*
-	 * If the flag of msg_done is not set or the recv length is zero, it
-	 * means that the IPMI command is not executed correctly.
-	 * The status code will be ACPI_IPMI_UNKNOWN.
+	 * If the flag of msg_done is not set, it means that the IPMI command is
+	 * not executed correctly.
 	 */
-	if (!msg->msg_done || !msg->rx_len) {
-		buffer->status = ACPI_IPMI_UNKNOWN;
+	buffer->status = msg->msg_done;
+	if (msg->msg_done != ACPI_IPMI_OK)
 		return;
-	}
 	/*
 	 * If the IPMI response message is obtained correctly, the status code
 	 * will be ACPI_IPMI_OK
 	 */
-	buffer->status = ACPI_IPMI_OK;
 	buffer->length = msg->rx_len;
 	memcpy(buffer->data, msg->data, msg->rx_len);
 }
@@ -280,11 +274,23 @@ static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
 		dev_WARN_ONCE(&pnp_dev->dev, true,
 			      "Unexpected response (msg len %d).\n",
 			      msg->msg.data_len);
-	} else {
-		tx_msg->rx_len = msg->msg.data_len;
-		memcpy(tx_msg->data, msg->msg.data, tx_msg->rx_len);
-		tx_msg->msg_done = 1;
+		goto out_comp;
 	}
+	/* response msg is an error msg */
+	msg->recv_type = IPMI_RESPONSE_RECV_TYPE;
+	if (msg->recv_type == IPMI_RESPONSE_RECV_TYPE &&
+	    msg->msg.data_len == 1) {
+		if (msg->msg.data[0] == IPMI_TIMEOUT_COMPLETION_CODE) {
+			dev_WARN_ONCE(&pnp_dev->dev, true,
+				      "Unexpected response (timeout).\n");
+			tx_msg->msg_done = ACPI_IPMI_TIMEOUT;
+		}
+		goto out_comp;
+	}
+	tx_msg->rx_len = msg->msg.data_len;
+	memcpy(tx_msg->data, msg->msg.data, tx_msg->rx_len);
+	tx_msg->msg_done = ACPI_IPMI_OK;
+out_comp:
 	complete(&tx_msg->tx_complete);
 out_lock:
 	spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags);
@@ -392,7 +398,7 @@ acpi_ipmi_space_handler(u32 function, acpi_physical_address address,
 {
 	struct acpi_ipmi_msg *tx_msg;
 	struct acpi_ipmi_device *ipmi_device = handler_context;
-	int err, rem_time;
+	int err;
 	acpi_status status;
 	unsigned long flags;
 	/*
@@ -422,14 +428,13 @@ acpi_ipmi_space_handler(u32 function, acpi_physical_address address,
 					&tx_msg->addr,
 					tx_msg->tx_msgid,
 					&tx_msg->tx_message,
-					NULL, 0, 0, 0);
+					NULL, 0, 0, IPMI_TIMEOUT);
 	if (err) {
 		status = AE_ERROR;
 		goto out_list;
 	}
-	rem_time = wait_for_completion_timeout(&tx_msg->tx_complete,
-					IPMI_TIMEOUT);
-	acpi_format_ipmi_response(tx_msg, value, rem_time);
+	wait_for_completion(&tx_msg->tx_complete);
+	acpi_format_ipmi_response(tx_msg, value);
 	status = AE_OK;
 
 out_list:
-- 
cgit 


From a1a69b297e4775298d6407357332ea1adc218396 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Fri, 13 Sep 2013 13:13:54 +0800
Subject: ACPI / IPMI: Fix race caused by the unprotected ACPI IPMI user

This patch uses reference counting to fix the race caused by the
unprotected ACPI IPMI user.

There are two rules for using the ipmi_si APIs:
 1. In ipmi_si, ipmi_destroy_user() can ensure that no ipmi_recv_msg will
    be passed to ipmi_msg_handler(), but ipmi_request_settime() can not
    use an invalid ipmi_user_t.  This means the ipmi_si users must ensure
    that there won't be any local references on ipmi_user_t before invoking
    ipmi_destroy_user().
 2. In ipmi_si, the smi_gone()/new_smi() callbacks are protected by
    smi_watchers_mutex, so their execution is serialized.  But as a
    new smi can re-use a freed intf_num, it requires that the callback
    implementation must not use intf_num as an identification mean or it
    must ensure all references to the previous smi are all dropped before
    exiting smi_gone() callback.

As the acpi_ipmi_device->user_interface check in acpi_ipmi_space_handler()
can happen before setting user_interface to NULL and codes after the check
in acpi_ipmi_space_handler() can happen after user_interface becomes NULL,
the on-going acpi_ipmi_space_handler() still can pass an invalid
acpi_ipmi_device->user_interface to ipmi_request_settime().  Such race
conditions are not allowed by the IPMI layer's API design as a crash will
happen in ipmi_request_settime() if something like that happens.

This patch follows the ipmi_devintf.c design:
 1. Invoke ipmi_destroy_user() after the reference count of
    acpi_ipmi_device drops to 0.  References of acpi_ipmi_device dropping
    to 0 also means tx_msg related to this acpi_ipmi_device are all freed.
    This matches the IPMI layer's API calling rule on ipmi_destroy_user()
    and ipmi_request_settime().
 2. ipmi_flush_tx_msg() is performed so that no on-going tx_msg can still be
    running in acpi_ipmi_space_handler().  And it is invoked after invoking
    __ipmi_dev_kill() where acpi_ipmi_device is deleted from the list with a
    "dead" flag set, and the "dead" flag check is also introduced to the
    point where a tx_msg is going to be added to the tx_msg_list so that no
    new tx_msg can be created after returning from the __ipmi_dev_kill().
 3. The waiting codes in ipmi_flush_tx_msg() is deleted because it is not
    required since this patch ensures no acpi_ipmi reference is still held
    for ipmi_user_t before calling ipmi_destroy_user() and
    ipmi_destroy_user() can ensure no more ipmi_msg_handler() can happen
    after returning from ipmi_destroy_user().
 4. The flushing of tx_msg is also moved out of ipmi_lock in this patch.

The forthcoming IPMI operation region handler installation changes also
requires acpi_ipmi_device be handled in this style.

The header comment of the file is also updated due to this design change.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_ipmi.c | 249 +++++++++++++++++++++++++++++------------------
 1 file changed, 156 insertions(+), 93 deletions(-)

diff --git a/drivers/acpi/acpi_ipmi.c b/drivers/acpi/acpi_ipmi.c
index 9171a1a668f2..b285386eb37f 100644
--- a/drivers/acpi/acpi_ipmi.c
+++ b/drivers/acpi/acpi_ipmi.c
@@ -1,8 +1,9 @@
 /*
  *  acpi_ipmi.c - ACPI IPMI opregion
  *
- *  Copyright (C) 2010 Intel Corporation
- *  Copyright (C) 2010 Zhao Yakui <yakui.zhao@intel.com>
+ *  Copyright (C) 2010, 2013 Intel Corporation
+ *    Author: Zhao Yakui <yakui.zhao@intel.com>
+ *            Lv Zheng <lv.zheng@intel.com>
  *
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  *
@@ -67,6 +68,8 @@ struct acpi_ipmi_device {
 	long curr_msgid;
 	unsigned long flags;
 	struct ipmi_smi_info smi_data;
+	bool dead;
+	struct kref kref;
 };
 
 struct ipmi_driver_data {
@@ -107,8 +110,8 @@ struct acpi_ipmi_buffer {
 static void ipmi_register_bmc(int iface, struct device *dev);
 static void ipmi_bmc_gone(int iface);
 static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data);
-static void acpi_add_ipmi_device(struct acpi_ipmi_device *ipmi_device);
-static void acpi_remove_ipmi_device(struct acpi_ipmi_device *ipmi_device);
+static int ipmi_install_space_handler(struct acpi_ipmi_device *ipmi);
+static void ipmi_remove_space_handler(struct acpi_ipmi_device *ipmi);
 
 static struct ipmi_driver_data driver_data = {
 	.ipmi_devices = LIST_HEAD_INIT(driver_data.ipmi_devices),
@@ -122,6 +125,88 @@ static struct ipmi_driver_data driver_data = {
 	},
 };
 
+static struct acpi_ipmi_device *
+ipmi_dev_alloc(int iface, struct ipmi_smi_info *smi_data, acpi_handle handle)
+{
+	struct acpi_ipmi_device *ipmi_device;
+	int err;
+	ipmi_user_t user;
+
+	ipmi_device = kzalloc(sizeof(*ipmi_device), GFP_KERNEL);
+	if (!ipmi_device)
+		return NULL;
+
+	kref_init(&ipmi_device->kref);
+	INIT_LIST_HEAD(&ipmi_device->head);
+	INIT_LIST_HEAD(&ipmi_device->tx_msg_list);
+	spin_lock_init(&ipmi_device->tx_msg_lock);
+
+	ipmi_device->handle = handle;
+	ipmi_device->pnp_dev = to_pnp_dev(get_device(smi_data->dev));
+	memcpy(&ipmi_device->smi_data, smi_data, sizeof(struct ipmi_smi_info));
+	ipmi_device->ipmi_ifnum = iface;
+
+	err = ipmi_create_user(iface, &driver_data.ipmi_hndlrs,
+			       ipmi_device, &user);
+	if (err) {
+		put_device(smi_data->dev);
+		kfree(ipmi_device);
+		return NULL;
+	}
+	ipmi_device->user_interface = user;
+	ipmi_install_space_handler(ipmi_device);
+
+	return ipmi_device;
+}
+
+static void ipmi_dev_release(struct acpi_ipmi_device *ipmi_device)
+{
+	ipmi_remove_space_handler(ipmi_device);
+	ipmi_destroy_user(ipmi_device->user_interface);
+	put_device(ipmi_device->smi_data.dev);
+	kfree(ipmi_device);
+}
+
+static void ipmi_dev_release_kref(struct kref *kref)
+{
+	struct acpi_ipmi_device *ipmi =
+		container_of(kref, struct acpi_ipmi_device, kref);
+
+	ipmi_dev_release(ipmi);
+}
+
+static void __ipmi_dev_kill(struct acpi_ipmi_device *ipmi_device)
+{
+	list_del(&ipmi_device->head);
+	/*
+	 * Always setting dead flag after deleting from the list or
+	 * list_for_each_entry() codes must get changed.
+	 */
+	ipmi_device->dead = true;
+}
+
+static struct acpi_ipmi_device *acpi_ipmi_dev_get(int iface)
+{
+	struct acpi_ipmi_device *temp, *ipmi_device = NULL;
+
+	mutex_lock(&driver_data.ipmi_lock);
+	list_for_each_entry(temp, &driver_data.ipmi_devices, head) {
+		if (temp->ipmi_ifnum == iface) {
+			ipmi_device = temp;
+			kref_get(&ipmi_device->kref);
+			break;
+		}
+	}
+	mutex_unlock(&driver_data.ipmi_lock);
+
+	return ipmi_device;
+}
+
+static void acpi_ipmi_dev_put(struct acpi_ipmi_device *ipmi_device)
+{
+	kref_put(&ipmi_device->kref, ipmi_dev_release_kref);
+}
+
 static struct acpi_ipmi_msg *acpi_alloc_ipmi_msg(struct acpi_ipmi_device *ipmi)
 {
 	struct acpi_ipmi_msg *ipmi_msg;
@@ -220,25 +305,22 @@ static void acpi_format_ipmi_response(struct acpi_ipmi_msg *msg,
 static void ipmi_flush_tx_msg(struct acpi_ipmi_device *ipmi)
 {
 	struct acpi_ipmi_msg *tx_msg, *temp;
-	int count = HZ / 10;
-	struct pnp_dev *pnp_dev = ipmi->pnp_dev;
 	unsigned long flags;
 
+	/*
+	 * NOTE: On-going ipmi_recv_msg
+	 * ipmi_msg_handler() may still be invoked by ipmi_si after
+	 * flushing.  But it is safe to do a fast flushing on module_exit()
+	 * without waiting for all ipmi_recv_msg(s) to complete from
+	 * ipmi_msg_handler() as it is ensured by ipmi_si that all
+	 * ipmi_recv_msg(s) are freed after invoking ipmi_destroy_user().
+	 */
 	spin_lock_irqsave(&ipmi->tx_msg_lock, flags);
 	list_for_each_entry_safe(tx_msg, temp, &ipmi->tx_msg_list, head) {
 		/* wake up the sleep thread on the Tx msg */
 		complete(&tx_msg->tx_complete);
 	}
 	spin_unlock_irqrestore(&ipmi->tx_msg_lock, flags);
-
-	/* wait for about 100ms to flush the tx message list */
-	while (count--) {
-		if (list_empty(&ipmi->tx_msg_list))
-			break;
-		schedule_timeout(1);
-	}
-	if (!list_empty(&ipmi->tx_msg_list))
-		dev_warn(&pnp_dev->dev, "tx msg list is not NULL\n");
 }
 
 static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
@@ -302,7 +384,6 @@ static void ipmi_register_bmc(int iface, struct device *dev)
 {
 	struct acpi_ipmi_device *ipmi_device, *temp;
 	struct pnp_dev *pnp_dev;
-	ipmi_user_t		user;
 	int err;
 	struct ipmi_smi_info smi_data;
 	acpi_handle handle;
@@ -312,12 +393,18 @@ static void ipmi_register_bmc(int iface, struct device *dev)
 	if (err)
 		return;
 
-	if (smi_data.addr_src != SI_ACPI) {
-		put_device(smi_data.dev);
-		return;
-	}
-
+	if (smi_data.addr_src != SI_ACPI)
+		goto err_ref;
 	handle = smi_data.addr_info.acpi_info.acpi_handle;
+	if (!handle)
+		goto err_ref;
+	pnp_dev = to_pnp_dev(smi_data.dev);
+
+	ipmi_device = ipmi_dev_alloc(iface, &smi_data, handle);
+	if (!ipmi_device) {
+		dev_warn(&pnp_dev->dev, "Can't create IPMI user interface\n");
+		goto err_ref;
+	}
 
 	mutex_lock(&driver_data.ipmi_lock);
 	list_for_each_entry(temp, &driver_data.ipmi_devices, head) {
@@ -326,34 +413,18 @@ static void ipmi_register_bmc(int iface, struct device *dev)
 		 * to the device list, don't add it again.
 		 */
 		if (temp->handle == handle)
-			goto out;
+			goto err_lock;
 	}
 
-	ipmi_device = kzalloc(sizeof(*ipmi_device), GFP_KERNEL);
-
-	if (!ipmi_device)
-		goto out;
-
-	pnp_dev = to_pnp_dev(smi_data.dev);
-	ipmi_device->handle = handle;
-	ipmi_device->pnp_dev = pnp_dev;
-
-	err = ipmi_create_user(iface, &driver_data.ipmi_hndlrs,
-					ipmi_device, &user);
-	if (err) {
-		dev_warn(&pnp_dev->dev, "Can't create IPMI user interface\n");
-		kfree(ipmi_device);
-		goto out;
-	}
-	acpi_add_ipmi_device(ipmi_device);
-	ipmi_device->user_interface = user;
-	ipmi_device->ipmi_ifnum = iface;
+	list_add_tail(&ipmi_device->head, &driver_data.ipmi_devices);
 	mutex_unlock(&driver_data.ipmi_lock);
-	memcpy(&ipmi_device->smi_data, &smi_data, sizeof(struct ipmi_smi_info));
+	put_device(smi_data.dev);
 	return;
 
-out:
+err_lock:
 	mutex_unlock(&driver_data.ipmi_lock);
+	ipmi_dev_release(ipmi_device);
+err_ref:
 	put_device(smi_data.dev);
 	return;
 }
@@ -361,19 +432,22 @@ out:
 static void ipmi_bmc_gone(int iface)
 {
 	struct acpi_ipmi_device *ipmi_device, *temp;
+	bool dev_found = false;
 
 	mutex_lock(&driver_data.ipmi_lock);
 	list_for_each_entry_safe(ipmi_device, temp,
 				&driver_data.ipmi_devices, head) {
-		if (ipmi_device->ipmi_ifnum != iface)
-			continue;
-
-		acpi_remove_ipmi_device(ipmi_device);
-		put_device(ipmi_device->smi_data.dev);
-		kfree(ipmi_device);
-		break;
+		if (ipmi_device->ipmi_ifnum != iface) {
+			dev_found = true;
+			__ipmi_dev_kill(ipmi_device);
+			break;
+		}
 	}
 	mutex_unlock(&driver_data.ipmi_lock);
+	if (dev_found) {
+		ipmi_flush_tx_msg(ipmi_device);
+		acpi_ipmi_dev_put(ipmi_device);
+	}
 }
 /* --------------------------------------------------------------------------
  *			Address Space Management
@@ -397,7 +471,8 @@ acpi_ipmi_space_handler(u32 function, acpi_physical_address address,
 		      void *handler_context, void *region_context)
 {
 	struct acpi_ipmi_msg *tx_msg;
-	struct acpi_ipmi_device *ipmi_device = handler_context;
+	int iface = (long)handler_context;
+	struct acpi_ipmi_device *ipmi_device;
 	int err;
 	acpi_status status;
 	unsigned long flags;
@@ -410,20 +485,31 @@ acpi_ipmi_space_handler(u32 function, acpi_physical_address address,
 	if ((function & ACPI_IO_MASK) == ACPI_READ)
 		return AE_TYPE;
 
-	if (!ipmi_device->user_interface)
+	ipmi_device = acpi_ipmi_dev_get(iface);
+	if (!ipmi_device)
 		return AE_NOT_EXIST;
 
 	tx_msg = acpi_alloc_ipmi_msg(ipmi_device);
-	if (!tx_msg)
-		return AE_NO_MEMORY;
+	if (!tx_msg) {
+		status = AE_NO_MEMORY;
+		goto out_ref;
+	}
 
 	if (acpi_format_ipmi_request(tx_msg, address, value) != 0) {
 		status = AE_TYPE;
 		goto out_msg;
 	}
+	mutex_lock(&driver_data.ipmi_lock);
+	/* Do not add a tx_msg that can not be flushed. */
+	if (ipmi_device->dead) {
+		status = AE_NOT_EXIST;
+		mutex_unlock(&driver_data.ipmi_lock);
+		goto out_msg;
+	}
 	spin_lock_irqsave(&ipmi_device->tx_msg_lock, flags);
 	list_add_tail(&tx_msg->head, &ipmi_device->tx_msg_list);
 	spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags);
+	mutex_unlock(&driver_data.ipmi_lock);
 	err = ipmi_request_settime(ipmi_device->user_interface,
 					&tx_msg->addr,
 					tx_msg->tx_msgid,
@@ -443,6 +529,8 @@ out_list:
 	spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags);
 out_msg:
 	kfree(tx_msg);
+out_ref:
+	acpi_ipmi_dev_put(ipmi_device);
 	return status;
 }
 
@@ -465,9 +553,8 @@ static int ipmi_install_space_handler(struct acpi_ipmi_device *ipmi)
 		return 0;
 
 	status = acpi_install_address_space_handler(ipmi->handle,
-						    ACPI_ADR_SPACE_IPMI,
-						    &acpi_ipmi_space_handler,
-						    NULL, ipmi);
+				ACPI_ADR_SPACE_IPMI, &acpi_ipmi_space_handler,
+				NULL, (void *)((long)ipmi->ipmi_ifnum));
 	if (ACPI_FAILURE(status)) {
 		struct pnp_dev *pnp_dev = ipmi->pnp_dev;
 		dev_warn(&pnp_dev->dev, "Can't register IPMI opregion space "
@@ -478,36 +565,6 @@ static int ipmi_install_space_handler(struct acpi_ipmi_device *ipmi)
 	return 0;
 }
 
-static void acpi_add_ipmi_device(struct acpi_ipmi_device *ipmi_device)
-{
-
-	INIT_LIST_HEAD(&ipmi_device->head);
-
-	spin_lock_init(&ipmi_device->tx_msg_lock);
-	INIT_LIST_HEAD(&ipmi_device->tx_msg_list);
-	ipmi_install_space_handler(ipmi_device);
-
-	list_add_tail(&ipmi_device->head, &driver_data.ipmi_devices);
-}
-
-static void acpi_remove_ipmi_device(struct acpi_ipmi_device *ipmi_device)
-{
-	/*
-	 * If the IPMI user interface is created, it should be
-	 * destroyed.
-	 */
-	if (ipmi_device->user_interface) {
-		ipmi_destroy_user(ipmi_device->user_interface);
-		ipmi_device->user_interface = NULL;
-	}
-	/* flush the Tx_msg list */
-	if (!list_empty(&ipmi_device->tx_msg_list))
-		ipmi_flush_tx_msg(ipmi_device);
-
-	list_del(&ipmi_device->head);
-	ipmi_remove_space_handler(ipmi_device);
-}
-
 static int __init acpi_ipmi_init(void)
 {
 	int result = 0;
@@ -524,7 +581,7 @@ static int __init acpi_ipmi_init(void)
 
 static void __exit acpi_ipmi_exit(void)
 {
-	struct acpi_ipmi_device *ipmi_device, *temp;
+	struct acpi_ipmi_device *ipmi_device;
 
 	if (acpi_disabled)
 		return;
@@ -538,11 +595,17 @@ static void __exit acpi_ipmi_exit(void)
 	 * handler and free it.
 	 */
 	mutex_lock(&driver_data.ipmi_lock);
-	list_for_each_entry_safe(ipmi_device, temp,
-				&driver_data.ipmi_devices, head) {
-		acpi_remove_ipmi_device(ipmi_device);
-		put_device(ipmi_device->smi_data.dev);
-		kfree(ipmi_device);
+	while (!list_empty(&driver_data.ipmi_devices)) {
+		ipmi_device = list_first_entry(&driver_data.ipmi_devices,
+					       struct acpi_ipmi_device,
+					       head);
+		__ipmi_dev_kill(ipmi_device);
+		mutex_unlock(&driver_data.ipmi_lock);
+
+		ipmi_flush_tx_msg(ipmi_device);
+		acpi_ipmi_dev_put(ipmi_device);
+
+		mutex_lock(&driver_data.ipmi_lock);
 	}
 	mutex_unlock(&driver_data.ipmi_lock);
 }
-- 
cgit 


From e96a94edd7ae302168e17daa0198b9ef08b2109d Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Fri, 13 Sep 2013 13:14:02 +0800
Subject: ACPI / IPMI: Use global IPMI operation region handler

It is found on a real machine, in its ACPI namespace, the IPMI
OperationRegions (in the ACPI000D - ACPI power meter) are not defined under
the IPMI system interface device (the IPI0001 with KCS type returned from
_IFT control method):
  Device (PMI0)
  {
      Name (_HID, "ACPI000D")  // _HID: Hardware ID
      OperationRegion (SYSI, IPMI, 0x0600, 0x0100)
      Field (SYSI, BufferAcc, Lock, Preserve)
      {
          AccessAs (BufferAcc, 0x01),
          Offset (0x58),
          SCMD,   8,
          GCMD,   8
      }

      OperationRegion (POWR, IPMI, 0x3000, 0x0100)
      Field (POWR, BufferAcc, Lock, Preserve)
      {
          AccessAs (BufferAcc, 0x01),
          Offset (0xB3),
          GPMM,   8
      }
  }

  Device (PCI0)
  {
      Device (ISA)
      {
          Device (NIPM)
          {
              Name (_HID, EisaId ("IPI0001"))  // _HID: Hardware ID
              Method (_IFT, 0, NotSerialized)  // _IFT: IPMI Interface Type
              {
                  Return (0x01)
              }
          }
      }
  }

Current ACPI_IPMI code registers IPMI operation region handler on a
per-device basis, so for the above namespace the IPMI operation region
handler is registered only under the scope of \_SB.PCI0.ISA.NIPM.  Thus
when an IPMI operation region field of \PMI0 is accessed, there are errors
reported on such platform:
  ACPI Error: No handlers for Region [IPMI]
  ACPI Error: Region IPMI(7) has no handler
The solution is to install an IPMI operation region handler from root node
so that every object that defines IPMI OperationRegion can get an address
space handler registered.

When an IPMI operation region field is accessed, the Network Function
(0x06 for SYSI and 0x30 for POWR) and the Command (SCMD, GCMD, GPMM) are
passed to the operation region handler, there is no system interface
specified by the BIOS.  The patch tries to select one system interface by
monitoring the system interface notification.  IPMI messages passed from
the ACPI codes are sent to this selected global IPMI system interface.

The ACPI_IPMI will always select the first registered IPMI interface
with an ACPI handle (i.e., defined in the ACPI namespace).  It's hard to
determine the selection when there are multiple IPMI system interfaces
defined in the ACPI namespace. According to the IPMI specification:

  A BMC device may make available multiple system interfaces, but only one
  management controller is allowed to be 'active' BMC that provides BMC
  functionality for the system (in case of a 'partitioned' system, there
  can be only one active BMC per partition).  Only the system interface(s)
  for the active BMC allowed to respond to the 'Get Device Id' command.

According to the ipmi_si desigin:

  The ipmi_si registeration notifications can only happen after a
  successful "Get Device ID" command.

Thus it should be OK for non-partitioned systems to do such selection.
However, we do not have much knowledge on 'partitioned' systems.

References: https://bugzilla.kernel.org/show_bug.cgi?id=46741
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_ipmi.c | 81 ++++++++++++++++++++----------------------------
 1 file changed, 34 insertions(+), 47 deletions(-)

diff --git a/drivers/acpi/acpi_ipmi.c b/drivers/acpi/acpi_ipmi.c
index b285386eb37f..7ec4cd1e7245 100644
--- a/drivers/acpi/acpi_ipmi.c
+++ b/drivers/acpi/acpi_ipmi.c
@@ -46,7 +46,6 @@ MODULE_AUTHOR("Zhao Yakui");
 MODULE_DESCRIPTION("ACPI IPMI Opregion driver");
 MODULE_LICENSE("GPL");
 
-#define IPMI_FLAGS_HANDLER_INSTALL	0
 
 #define ACPI_IPMI_OK			0
 #define ACPI_IPMI_TIMEOUT		0x10
@@ -66,7 +65,6 @@ struct acpi_ipmi_device {
 	ipmi_user_t	user_interface;
 	int ipmi_ifnum; /* IPMI interface number */
 	long curr_msgid;
-	unsigned long flags;
 	struct ipmi_smi_info smi_data;
 	bool dead;
 	struct kref kref;
@@ -77,6 +75,14 @@ struct ipmi_driver_data {
 	struct ipmi_smi_watcher	bmc_events;
 	struct ipmi_user_hndl	ipmi_hndlrs;
 	struct mutex		ipmi_lock;
+	/*
+	 * NOTE: IPMI System Interface Selection
+	 * There is no system interface specified by the IPMI operation
+	 * region access.  We try to select one system interface with ACPI
+	 * handle set.  IPMI messages passed from the ACPI codes are sent
+	 * to this selected global IPMI system interface.
+	 */
+	struct acpi_ipmi_device *selected_smi;
 };
 
 struct acpi_ipmi_msg {
@@ -110,8 +116,6 @@ struct acpi_ipmi_buffer {
 static void ipmi_register_bmc(int iface, struct device *dev);
 static void ipmi_bmc_gone(int iface);
 static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data);
-static int ipmi_install_space_handler(struct acpi_ipmi_device *ipmi);
-static void ipmi_remove_space_handler(struct acpi_ipmi_device *ipmi);
 
 static struct ipmi_driver_data driver_data = {
 	.ipmi_devices = LIST_HEAD_INIT(driver_data.ipmi_devices),
@@ -154,14 +158,12 @@ ipmi_dev_alloc(int iface, struct ipmi_smi_info *smi_data, acpi_handle handle)
 		return NULL;
 	}
 	ipmi_device->user_interface = user;
-	ipmi_install_space_handler(ipmi_device);
 
 	return ipmi_device;
 }
 
 static void ipmi_dev_release(struct acpi_ipmi_device *ipmi_device)
 {
-	ipmi_remove_space_handler(ipmi_device);
 	ipmi_destroy_user(ipmi_device->user_interface);
 	put_device(ipmi_device->smi_data.dev);
 	kfree(ipmi_device);
@@ -178,6 +180,8 @@ static void ipmi_dev_release_kref(struct kref *kref)
 static void __ipmi_dev_kill(struct acpi_ipmi_device *ipmi_device)
 {
 	list_del(&ipmi_device->head);
+	if (driver_data.selected_smi == ipmi_device)
+		driver_data.selected_smi = NULL;
 	/*
 	 * Always setting dead flag after deleting from the list or
 	 * list_for_each_entry() codes must get changed.
@@ -185,17 +189,14 @@ static void __ipmi_dev_kill(struct acpi_ipmi_device *ipmi_device)
 	ipmi_device->dead = true;
 }
 
-static struct acpi_ipmi_device *acpi_ipmi_dev_get(int iface)
+static struct acpi_ipmi_device *acpi_ipmi_dev_get(void)
 {
-	struct acpi_ipmi_device *temp, *ipmi_device = NULL;
+	struct acpi_ipmi_device *ipmi_device = NULL;
 
 	mutex_lock(&driver_data.ipmi_lock);
-	list_for_each_entry(temp, &driver_data.ipmi_devices, head) {
-		if (temp->ipmi_ifnum == iface) {
-			ipmi_device = temp;
-			kref_get(&ipmi_device->kref);
-			break;
-		}
+	if (driver_data.selected_smi) {
+		ipmi_device = driver_data.selected_smi;
+		kref_get(&ipmi_device->kref);
 	}
 	mutex_unlock(&driver_data.ipmi_lock);
 
@@ -416,6 +417,8 @@ static void ipmi_register_bmc(int iface, struct device *dev)
 			goto err_lock;
 	}
 
+	if (!driver_data.selected_smi)
+		driver_data.selected_smi = ipmi_device;
 	list_add_tail(&ipmi_device->head, &driver_data.ipmi_devices);
 	mutex_unlock(&driver_data.ipmi_lock);
 	put_device(smi_data.dev);
@@ -443,6 +446,10 @@ static void ipmi_bmc_gone(int iface)
 			break;
 		}
 	}
+	if (!driver_data.selected_smi)
+		driver_data.selected_smi = list_first_entry_or_null(
+					&driver_data.ipmi_devices,
+					struct acpi_ipmi_device, head);
 	mutex_unlock(&driver_data.ipmi_lock);
 	if (dev_found) {
 		ipmi_flush_tx_msg(ipmi_device);
@@ -471,7 +478,6 @@ acpi_ipmi_space_handler(u32 function, acpi_physical_address address,
 		      void *handler_context, void *region_context)
 {
 	struct acpi_ipmi_msg *tx_msg;
-	int iface = (long)handler_context;
 	struct acpi_ipmi_device *ipmi_device;
 	int err;
 	acpi_status status;
@@ -485,7 +491,7 @@ acpi_ipmi_space_handler(u32 function, acpi_physical_address address,
 	if ((function & ACPI_IO_MASK) == ACPI_READ)
 		return AE_TYPE;
 
-	ipmi_device = acpi_ipmi_dev_get(iface);
+	ipmi_device = acpi_ipmi_dev_get();
 	if (!ipmi_device)
 		return AE_NOT_EXIST;
 
@@ -534,47 +540,26 @@ out_ref:
 	return status;
 }
 
-static void ipmi_remove_space_handler(struct acpi_ipmi_device *ipmi)
-{
-	if (!test_bit(IPMI_FLAGS_HANDLER_INSTALL, &ipmi->flags))
-		return;
-
-	acpi_remove_address_space_handler(ipmi->handle,
-				ACPI_ADR_SPACE_IPMI, &acpi_ipmi_space_handler);
-
-	clear_bit(IPMI_FLAGS_HANDLER_INSTALL, &ipmi->flags);
-}
-
-static int ipmi_install_space_handler(struct acpi_ipmi_device *ipmi)
-{
-	acpi_status status;
-
-	if (test_bit(IPMI_FLAGS_HANDLER_INSTALL, &ipmi->flags))
-		return 0;
-
-	status = acpi_install_address_space_handler(ipmi->handle,
-				ACPI_ADR_SPACE_IPMI, &acpi_ipmi_space_handler,
-				NULL, (void *)((long)ipmi->ipmi_ifnum));
-	if (ACPI_FAILURE(status)) {
-		struct pnp_dev *pnp_dev = ipmi->pnp_dev;
-		dev_warn(&pnp_dev->dev, "Can't register IPMI opregion space "
-			"handle\n");
-		return -EINVAL;
-	}
-	set_bit(IPMI_FLAGS_HANDLER_INSTALL, &ipmi->flags);
-	return 0;
-}
-
 static int __init acpi_ipmi_init(void)
 {
 	int result = 0;
+	acpi_status status;
 
 	if (acpi_disabled)
 		return result;
 
 	mutex_init(&driver_data.ipmi_lock);
 
+	status = acpi_install_address_space_handler(ACPI_ROOT_OBJECT,
+				ACPI_ADR_SPACE_IPMI, &acpi_ipmi_space_handler,
+				NULL, NULL);
+	if (ACPI_FAILURE(status)) {
+		pr_warn("Can't register IPMI opregion space handle\n");
+		return -EINVAL;
+	}
 	result = ipmi_smi_watcher_register(&driver_data.bmc_events);
+	if (result)
+		pr_err("Can't register IPMI system interface watcher\n");
 
 	return result;
 }
@@ -608,6 +593,8 @@ static void __exit acpi_ipmi_exit(void)
 		mutex_lock(&driver_data.ipmi_lock);
 	}
 	mutex_unlock(&driver_data.ipmi_lock);
+	acpi_remove_address_space_handler(ACPI_ROOT_OBJECT,
+				ACPI_ADR_SPACE_IPMI, &acpi_ipmi_space_handler);
 }
 
 module_init(acpi_ipmi_init);
-- 
cgit 


From 7b9844772237e34968ffd4b086d7b5ed36b30856 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Fri, 13 Sep 2013 13:14:11 +0800
Subject: ACPI / IPMI: Add reference counting for ACPI IPMI transfers

This patch adds reference counting for ACPI IPMI transfers to tune the
locking granularity of tx_msg_lock.

This patch also makes the whole acpi_ipmi module's coding style consistent
by using reference counting for all its objects (i.e., acpi_ipmi_device and
acpi_ipmi_msg).

The acpi_ipmi_msg handling is re-designed using referece counting.
 1. tx_msg is always unlinked before complete(), so that it is safe to put
    complete() out side of tx_msg_lock.
 2. tx_msg reference counters are incremented before calling
    ipmi_request_settime() and tx_msg_lock protection is added to
    ipmi_cancel_tx_msg() so that a complete() can be safely called in
    parellel with tx_msg unlinking in failure cases.
 3. tx_msg holds a reference to acpi_ipmi_device so that it can be flushed
    and freed in the contexts other than acpi_ipmi_space_handler().

The lockdep_chains shows all acpi_ipmi locks are leaf locks after the
tuning:
 1. ipmi_lock is always leaf:
    irq_context: 0
    [ffffffff81a943f8] smi_watchers_mutex
    [ffffffffa06eca60] driver_data.ipmi_lock
    irq_context: 0
    [ffffffff82767b40] &buffer->mutex
    [ffffffffa00a6678] s_active#103
    [ffffffffa06eca60] driver_data.ipmi_lock
 2. without this patch applied, lock used by complete() is held after
    holding tx_msg_lock:
    irq_context: 0
    [ffffffff82767b40] &buffer->mutex
    [ffffffffa00a6678] s_active#103
    [ffffffffa06ecce8] &(&ipmi_device->tx_msg_lock)->rlock
    irq_context: 1
    [ffffffffa06ecce8] &(&ipmi_device->tx_msg_lock)->rlock
    irq_context: 1
    [ffffffffa06ecce8] &(&ipmi_device->tx_msg_lock)->rlock
    [ffffffffa06eccf0] &x->wait#25
    irq_context: 1
    [ffffffffa06ecce8] &(&ipmi_device->tx_msg_lock)->rlock
    [ffffffffa06eccf0] &x->wait#25
    [ffffffff81e36620] &p->pi_lock
    irq_context: 1
    [ffffffffa06ecce8] &(&ipmi_device->tx_msg_lock)->rlock
    [ffffffffa06eccf0] &x->wait#25
    [ffffffff81e36620] &p->pi_lock
    [ffffffff81e5d0a8] &rq->lock
 3. with this patch applied, tx_msg_lock is always leaf:
    irq_context: 0
    [ffffffff82767b40] &buffer->mutex
    [ffffffffa00a66d8] s_active#107
    [ffffffffa07ecdc8] &(&ipmi_device->tx_msg_lock)->rlock
    irq_context: 1
    [ffffffffa07ecdc8] &(&ipmi_device->tx_msg_lock)->rlock

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_ipmi.c | 117 ++++++++++++++++++++++++++++++++++-------------
 1 file changed, 85 insertions(+), 32 deletions(-)

diff --git a/drivers/acpi/acpi_ipmi.c b/drivers/acpi/acpi_ipmi.c
index 7ec4cd1e7245..b9da5ef39024 100644
--- a/drivers/acpi/acpi_ipmi.c
+++ b/drivers/acpi/acpi_ipmi.c
@@ -104,6 +104,7 @@ struct acpi_ipmi_msg {
 	u8	data[ACPI_IPMI_MAX_MSG_LENGTH];
 	u8	rx_len;
 	struct acpi_ipmi_device *device;
+	struct kref	kref;
 };
 
 /* IPMI request/response buffer per ACPI 4.0, sec 5.5.2.4.3.2 */
@@ -208,16 +209,20 @@ static void acpi_ipmi_dev_put(struct acpi_ipmi_device *ipmi_device)
 	kref_put(&ipmi_device->kref, ipmi_dev_release_kref);
 }
 
-static struct acpi_ipmi_msg *acpi_alloc_ipmi_msg(struct acpi_ipmi_device *ipmi)
+static struct acpi_ipmi_msg *ipmi_msg_alloc(void)
 {
+	struct acpi_ipmi_device *ipmi;
 	struct acpi_ipmi_msg *ipmi_msg;
-	struct pnp_dev *pnp_dev = ipmi->pnp_dev;
 
+	ipmi = acpi_ipmi_dev_get();
+	if (!ipmi)
+		return NULL;
 	ipmi_msg = kzalloc(sizeof(struct acpi_ipmi_msg), GFP_KERNEL);
-	if (!ipmi_msg)	{
-		dev_warn(&pnp_dev->dev, "Can't allocate memory for ipmi_msg\n");
+	if (!ipmi_msg) {
+		acpi_ipmi_dev_put(ipmi);
 		return NULL;
 	}
+	kref_init(&ipmi_msg->kref);
 	init_completion(&ipmi_msg->tx_complete);
 	INIT_LIST_HEAD(&ipmi_msg->head);
 	ipmi_msg->device = ipmi;
@@ -225,6 +230,32 @@ static struct acpi_ipmi_msg *acpi_alloc_ipmi_msg(struct acpi_ipmi_device *ipmi)
 	return ipmi_msg;
 }
 
+static void ipmi_msg_release(struct acpi_ipmi_msg *tx_msg)
+{
+	acpi_ipmi_dev_put(tx_msg->device);
+	kfree(tx_msg);
+}
+
+static void ipmi_msg_release_kref(struct kref *kref)
+{
+	struct acpi_ipmi_msg *tx_msg =
+		container_of(kref, struct acpi_ipmi_msg, kref);
+
+	ipmi_msg_release(tx_msg);
+}
+
+static struct acpi_ipmi_msg *acpi_ipmi_msg_get(struct acpi_ipmi_msg *tx_msg)
+{
+	kref_get(&tx_msg->kref);
+
+	return tx_msg;
+}
+
+static void acpi_ipmi_msg_put(struct acpi_ipmi_msg *tx_msg)
+{
+	kref_put(&tx_msg->kref, ipmi_msg_release_kref);
+}
+
 #define		IPMI_OP_RGN_NETFN(offset)	((offset >> 8) & 0xff)
 #define		IPMI_OP_RGN_CMD(offset)		(offset & 0xff)
 static int acpi_format_ipmi_request(struct acpi_ipmi_msg *tx_msg,
@@ -305,7 +336,7 @@ static void acpi_format_ipmi_response(struct acpi_ipmi_msg *msg,
 
 static void ipmi_flush_tx_msg(struct acpi_ipmi_device *ipmi)
 {
-	struct acpi_ipmi_msg *tx_msg, *temp;
+	struct acpi_ipmi_msg *tx_msg;
 	unsigned long flags;
 
 	/*
@@ -317,18 +348,47 @@ static void ipmi_flush_tx_msg(struct acpi_ipmi_device *ipmi)
 	 * ipmi_recv_msg(s) are freed after invoking ipmi_destroy_user().
 	 */
 	spin_lock_irqsave(&ipmi->tx_msg_lock, flags);
-	list_for_each_entry_safe(tx_msg, temp, &ipmi->tx_msg_list, head) {
+	while (!list_empty(&ipmi->tx_msg_list)) {
+		tx_msg = list_first_entry(&ipmi->tx_msg_list,
+					  struct acpi_ipmi_msg,
+					  head);
+		list_del(&tx_msg->head);
+		spin_unlock_irqrestore(&ipmi->tx_msg_lock, flags);
+
 		/* wake up the sleep thread on the Tx msg */
 		complete(&tx_msg->tx_complete);
+		acpi_ipmi_msg_put(tx_msg);
+		spin_lock_irqsave(&ipmi->tx_msg_lock, flags);
+	}
+	spin_unlock_irqrestore(&ipmi->tx_msg_lock, flags);
+}
+
+static void ipmi_cancel_tx_msg(struct acpi_ipmi_device *ipmi,
+			       struct acpi_ipmi_msg *msg)
+{
+	struct acpi_ipmi_msg *tx_msg, *temp;
+	bool msg_found = false;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ipmi->tx_msg_lock, flags);
+	list_for_each_entry_safe(tx_msg, temp, &ipmi->tx_msg_list, head) {
+		if (msg == tx_msg) {
+			msg_found = true;
+			list_del(&tx_msg->head);
+			break;
+		}
 	}
 	spin_unlock_irqrestore(&ipmi->tx_msg_lock, flags);
+
+	if (msg_found)
+		acpi_ipmi_msg_put(tx_msg);
 }
 
 static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
 {
 	struct acpi_ipmi_device *ipmi_device = user_msg_data;
-	int msg_found = 0;
-	struct acpi_ipmi_msg *tx_msg;
+	bool msg_found = false;
+	struct acpi_ipmi_msg *tx_msg, *temp;
 	struct pnp_dev *pnp_dev = ipmi_device->pnp_dev;
 	unsigned long flags;
 
@@ -339,17 +399,19 @@ static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
 		goto out_msg;
 	}
 	spin_lock_irqsave(&ipmi_device->tx_msg_lock, flags);
-	list_for_each_entry(tx_msg, &ipmi_device->tx_msg_list, head) {
+	list_for_each_entry_safe(tx_msg, temp, &ipmi_device->tx_msg_list, head) {
 		if (msg->msgid == tx_msg->tx_msgid) {
-			msg_found = 1;
+			msg_found = true;
+			list_del(&tx_msg->head);
 			break;
 		}
 	}
+	spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags);
 
 	if (!msg_found) {
 		dev_warn(&pnp_dev->dev, "Unexpected response (msg id %ld) is "
 			"returned.\n", msg->msgid);
-		goto out_lock;
+		goto out_msg;
 	}
 
 	/* copy the response data to Rx_data buffer */
@@ -375,8 +437,7 @@ static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
 	tx_msg->msg_done = ACPI_IPMI_OK;
 out_comp:
 	complete(&tx_msg->tx_complete);
-out_lock:
-	spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags);
+	acpi_ipmi_msg_put(tx_msg);
 out_msg:
 	ipmi_free_recv_msg(msg);
 };
@@ -491,26 +552,23 @@ acpi_ipmi_space_handler(u32 function, acpi_physical_address address,
 	if ((function & ACPI_IO_MASK) == ACPI_READ)
 		return AE_TYPE;
 
-	ipmi_device = acpi_ipmi_dev_get();
-	if (!ipmi_device)
+	tx_msg = ipmi_msg_alloc();
+	if (!tx_msg)
 		return AE_NOT_EXIST;
 
-	tx_msg = acpi_alloc_ipmi_msg(ipmi_device);
-	if (!tx_msg) {
-		status = AE_NO_MEMORY;
-		goto out_ref;
-	}
+	ipmi_device = tx_msg->device;
 
 	if (acpi_format_ipmi_request(tx_msg, address, value) != 0) {
-		status = AE_TYPE;
-		goto out_msg;
+		ipmi_msg_release(tx_msg);
+		return AE_TYPE;
 	}
+	acpi_ipmi_msg_get(tx_msg);
 	mutex_lock(&driver_data.ipmi_lock);
 	/* Do not add a tx_msg that can not be flushed. */
 	if (ipmi_device->dead) {
-		status = AE_NOT_EXIST;
 		mutex_unlock(&driver_data.ipmi_lock);
-		goto out_msg;
+		ipmi_msg_release(tx_msg);
+		return AE_NOT_EXIST;
 	}
 	spin_lock_irqsave(&ipmi_device->tx_msg_lock, flags);
 	list_add_tail(&tx_msg->head, &ipmi_device->tx_msg_list);
@@ -523,20 +581,15 @@ acpi_ipmi_space_handler(u32 function, acpi_physical_address address,
 					NULL, 0, 0, IPMI_TIMEOUT);
 	if (err) {
 		status = AE_ERROR;
-		goto out_list;
+		goto out_msg;
 	}
 	wait_for_completion(&tx_msg->tx_complete);
 	acpi_format_ipmi_response(tx_msg, value);
 	status = AE_OK;
 
-out_list:
-	spin_lock_irqsave(&ipmi_device->tx_msg_lock, flags);
-	list_del(&tx_msg->head);
-	spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags);
 out_msg:
-	kfree(tx_msg);
-out_ref:
-	acpi_ipmi_dev_put(ipmi_device);
+	ipmi_cancel_tx_msg(ipmi_device, tx_msg);
+	acpi_ipmi_msg_put(tx_msg);
 	return status;
 }
 
-- 
cgit 


From 2fb037b89a3125627f02c40af3e3d38c3228184b Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Fri, 13 Sep 2013 13:14:21 +0800
Subject: ACPI / IPMI: Cleanup several acpi_ipmi_device members

This (trivial) patch:
 1. Deletes a member of the acpi_ipmi_device, smi_data, which is not
    actually used.
 2. Updates a member of the acpi_ipmi_device, pnp_dev, which is only used
    by dev_warn() invocations, so changes it to a struct device.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_ipmi.c | 30 +++++++++++++-----------------
 1 file changed, 13 insertions(+), 17 deletions(-)

diff --git a/drivers/acpi/acpi_ipmi.c b/drivers/acpi/acpi_ipmi.c
index b9da5ef39024..90d57c86db85 100644
--- a/drivers/acpi/acpi_ipmi.c
+++ b/drivers/acpi/acpi_ipmi.c
@@ -61,11 +61,10 @@ struct acpi_ipmi_device {
 	struct list_head tx_msg_list;
 	spinlock_t	tx_msg_lock;
 	acpi_handle handle;
-	struct pnp_dev *pnp_dev;
+	struct device *dev;
 	ipmi_user_t	user_interface;
 	int ipmi_ifnum; /* IPMI interface number */
 	long curr_msgid;
-	struct ipmi_smi_info smi_data;
 	bool dead;
 	struct kref kref;
 };
@@ -131,7 +130,7 @@ static struct ipmi_driver_data driver_data = {
 };
 
 static struct acpi_ipmi_device *
-ipmi_dev_alloc(int iface, struct ipmi_smi_info *smi_data, acpi_handle handle)
+ipmi_dev_alloc(int iface, struct device *dev, acpi_handle handle)
 {
 	struct acpi_ipmi_device *ipmi_device;
 	int err;
@@ -147,14 +146,13 @@ ipmi_dev_alloc(int iface, struct ipmi_smi_info *smi_data, acpi_handle handle)
 	spin_lock_init(&ipmi_device->tx_msg_lock);
 
 	ipmi_device->handle = handle;
-	ipmi_device->pnp_dev = to_pnp_dev(get_device(smi_data->dev));
-	memcpy(&ipmi_device->smi_data, smi_data, sizeof(struct ipmi_smi_info));
+	ipmi_device->dev = get_device(dev);
 	ipmi_device->ipmi_ifnum = iface;
 
 	err = ipmi_create_user(iface, &driver_data.ipmi_hndlrs,
 			       ipmi_device, &user);
 	if (err) {
-		put_device(smi_data->dev);
+		put_device(dev);
 		kfree(ipmi_device);
 		return NULL;
 	}
@@ -166,7 +164,7 @@ ipmi_dev_alloc(int iface, struct ipmi_smi_info *smi_data, acpi_handle handle)
 static void ipmi_dev_release(struct acpi_ipmi_device *ipmi_device)
 {
 	ipmi_destroy_user(ipmi_device->user_interface);
-	put_device(ipmi_device->smi_data.dev);
+	put_device(ipmi_device->dev);
 	kfree(ipmi_device);
 }
 
@@ -282,7 +280,7 @@ static int acpi_format_ipmi_request(struct acpi_ipmi_msg *tx_msg,
 	buffer = (struct acpi_ipmi_buffer *)value;
 	/* copy the tx message data */
 	if (buffer->length > ACPI_IPMI_MAX_MSG_LENGTH) {
-		dev_WARN_ONCE(&tx_msg->device->pnp_dev->dev, true,
+		dev_WARN_ONCE(tx_msg->device->dev, true,
 			      "Unexpected request (msg len %d).\n",
 			      buffer->length);
 		return -EINVAL;
@@ -389,11 +387,11 @@ static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
 	struct acpi_ipmi_device *ipmi_device = user_msg_data;
 	bool msg_found = false;
 	struct acpi_ipmi_msg *tx_msg, *temp;
-	struct pnp_dev *pnp_dev = ipmi_device->pnp_dev;
+	struct device *dev = ipmi_device->dev;
 	unsigned long flags;
 
 	if (msg->user != ipmi_device->user_interface) {
-		dev_warn(&pnp_dev->dev, "Unexpected response is returned. "
+		dev_warn(dev, "Unexpected response is returned. "
 			"returned user %p, expected user %p\n",
 			msg->user, ipmi_device->user_interface);
 		goto out_msg;
@@ -409,14 +407,14 @@ static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
 	spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags);
 
 	if (!msg_found) {
-		dev_warn(&pnp_dev->dev, "Unexpected response (msg id %ld) is "
+		dev_warn(dev, "Unexpected response (msg id %ld) is "
 			"returned.\n", msg->msgid);
 		goto out_msg;
 	}
 
 	/* copy the response data to Rx_data buffer */
 	if (msg->msg.data_len > ACPI_IPMI_MAX_MSG_LENGTH) {
-		dev_WARN_ONCE(&pnp_dev->dev, true,
+		dev_WARN_ONCE(dev, true,
 			      "Unexpected response (msg len %d).\n",
 			      msg->msg.data_len);
 		goto out_comp;
@@ -426,7 +424,7 @@ static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
 	if (msg->recv_type == IPMI_RESPONSE_RECV_TYPE &&
 	    msg->msg.data_len == 1) {
 		if (msg->msg.data[0] == IPMI_TIMEOUT_COMPLETION_CODE) {
-			dev_WARN_ONCE(&pnp_dev->dev, true,
+			dev_WARN_ONCE(dev, true,
 				      "Unexpected response (timeout).\n");
 			tx_msg->msg_done = ACPI_IPMI_TIMEOUT;
 		}
@@ -445,7 +443,6 @@ out_msg:
 static void ipmi_register_bmc(int iface, struct device *dev)
 {
 	struct acpi_ipmi_device *ipmi_device, *temp;
-	struct pnp_dev *pnp_dev;
 	int err;
 	struct ipmi_smi_info smi_data;
 	acpi_handle handle;
@@ -460,11 +457,10 @@ static void ipmi_register_bmc(int iface, struct device *dev)
 	handle = smi_data.addr_info.acpi_info.acpi_handle;
 	if (!handle)
 		goto err_ref;
-	pnp_dev = to_pnp_dev(smi_data.dev);
 
-	ipmi_device = ipmi_dev_alloc(iface, &smi_data, handle);
+	ipmi_device = ipmi_dev_alloc(iface, smi_data.dev, handle);
 	if (!ipmi_device) {
-		dev_warn(&pnp_dev->dev, "Can't create IPMI user interface\n");
+		dev_warn(smi_data.dev, "Can't create IPMI user interface\n");
 		goto err_ref;
 	}
 
-- 
cgit 


From a194aa43272d22f035e6f862db2d714658a02b36 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Fri, 13 Sep 2013 13:14:31 +0800
Subject: ACPI / IPMI: Cleanup some initialization codes

This (trivial) patch.
 1. Changes dynamic mutex initialization to static initialization.
 2. Removes one acpi_ipmi_init() variable initialization as it is not
    needed.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_ipmi.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/acpi_ipmi.c b/drivers/acpi/acpi_ipmi.c
index 90d57c86db85..f7b6598bd7c2 100644
--- a/drivers/acpi/acpi_ipmi.c
+++ b/drivers/acpi/acpi_ipmi.c
@@ -127,6 +127,7 @@ static struct ipmi_driver_data driver_data = {
 	.ipmi_hndlrs = {
 		.ipmi_recv_hndl = ipmi_msg_handler,
 	},
+	.ipmi_lock = __MUTEX_INITIALIZER(driver_data.ipmi_lock)
 };
 
 static struct acpi_ipmi_device *
@@ -591,13 +592,11 @@ out_msg:
 
 static int __init acpi_ipmi_init(void)
 {
-	int result = 0;
+	int result;
 	acpi_status status;
 
 	if (acpi_disabled)
-		return result;
-
-	mutex_init(&driver_data.ipmi_lock);
+		return 0;
 
 	status = acpi_install_address_space_handler(ACPI_ROOT_OBJECT,
 				ACPI_ADR_SPACE_IPMI, &acpi_ipmi_space_handler,
-- 
cgit 


From 935a9e3f9d57be122013113318e30e68530b474d Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Fri, 13 Sep 2013 13:14:41 +0800
Subject: ACPI / IPMI: Cleanup some inclusion codes

This (trivial) patch:
 1. Deletes several useless header inclusions.
 2. Kernel codes should always include <linux/acpi.h> instead of
    <acpi/acpi_bus.h> or <acpi/acpi_drivers.h> where many conditional
    declarations are handled.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_ipmi.c | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/drivers/acpi/acpi_ipmi.c b/drivers/acpi/acpi_ipmi.c
index f7b6598bd7c2..9d187fdbfd96 100644
--- a/drivers/acpi/acpi_ipmi.c
+++ b/drivers/acpi/acpi_ipmi.c
@@ -24,22 +24,9 @@
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  */
 
-#include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/init.h>
-#include <linux/types.h>
-#include <linux/delay.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/interrupt.h>
-#include <linux/list.h>
-#include <linux/spinlock.h>
-#include <linux/io.h>
-#include <acpi/acpi_bus.h>
-#include <acpi/acpi_drivers.h>
+#include <linux/acpi.h>
 #include <linux/ipmi.h>
-#include <linux/device.h>
-#include <linux/pnp.h>
 #include <linux/spinlock.h>
 
 MODULE_AUTHOR("Zhao Yakui");
-- 
cgit 


From 4b88e330914941c86198ca0b48f4ce16f112bbf0 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Fri, 13 Sep 2013 13:14:51 +0800
Subject: ACPI / IPMI: Cleanup some Kconfig codes

This (trivial) patch:
1. Deletes duplicate Kconfig dependency as there is "if IPMI_HANDLER"
   around "IPMI_SI".

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Reviewed-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/Kconfig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 22327e6a7236..d130e2c115cc 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -175,9 +175,10 @@ config ACPI_PROCESSOR
 
 	  To compile this driver as a module, choose M here:
 	  the module will be called processor.
+
 config ACPI_IPMI
 	tristate "IPMI"
-	depends on IPMI_SI && IPMI_HANDLER
+	depends on IPMI_SI
 	default n
 	help
 	  This driver enables the ACPI to access the BMC controller. And it
-- 
cgit 


From 50065300314e95c945665a17febc0c4e02941b06 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Fri, 13 Sep 2013 13:15:00 +0800
Subject: ACPI / IPMI: Cleanup coding styles

This patch only introduces indentation cleanups.  No functional changes.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_ipmi.c | 105 +++++++++++++++++++++++++++++------------------
 1 file changed, 65 insertions(+), 40 deletions(-)

diff --git a/drivers/acpi/acpi_ipmi.c b/drivers/acpi/acpi_ipmi.c
index 9d187fdbfd96..ac0f52f6df2b 100644
--- a/drivers/acpi/acpi_ipmi.c
+++ b/drivers/acpi/acpi_ipmi.c
@@ -33,7 +33,6 @@ MODULE_AUTHOR("Zhao Yakui");
 MODULE_DESCRIPTION("ACPI IPMI Opregion driver");
 MODULE_LICENSE("GPL");
 
-
 #define ACPI_IPMI_OK			0
 #define ACPI_IPMI_TIMEOUT		0x10
 #define ACPI_IPMI_UNKNOWN		0x07
@@ -44,12 +43,14 @@ MODULE_LICENSE("GPL");
 struct acpi_ipmi_device {
 	/* the device list attached to driver_data.ipmi_devices */
 	struct list_head head;
+
 	/* the IPMI request message list */
 	struct list_head tx_msg_list;
-	spinlock_t	tx_msg_lock;
+
+	spinlock_t tx_msg_lock;
 	acpi_handle handle;
 	struct device *dev;
-	ipmi_user_t	user_interface;
+	ipmi_user_t user_interface;
 	int ipmi_ifnum; /* IPMI interface number */
 	long curr_msgid;
 	bool dead;
@@ -57,10 +58,11 @@ struct acpi_ipmi_device {
 };
 
 struct ipmi_driver_data {
-	struct list_head	ipmi_devices;
-	struct ipmi_smi_watcher	bmc_events;
-	struct ipmi_user_hndl	ipmi_hndlrs;
-	struct mutex		ipmi_lock;
+	struct list_head ipmi_devices;
+	struct ipmi_smi_watcher bmc_events;
+	struct ipmi_user_hndl ipmi_hndlrs;
+	struct mutex ipmi_lock;
+
 	/*
 	 * NOTE: IPMI System Interface Selection
 	 * There is no system interface specified by the IPMI operation
@@ -73,6 +75,7 @@ struct ipmi_driver_data {
 
 struct acpi_ipmi_msg {
 	struct list_head head;
+
 	/*
 	 * General speaking the addr type should be SI_ADDR_TYPE. And
 	 * the addr channel should be BMC.
@@ -82,15 +85,19 @@ struct acpi_ipmi_msg {
 	 */
 	struct ipmi_addr addr;
 	long tx_msgid;
+
 	/* it is used to track whether the IPMI message is finished */
 	struct completion tx_complete;
+
 	struct kernel_ipmi_msg tx_message;
-	int	msg_done;
+	int msg_done;
+
 	/* tx/rx data . And copy it from/to ACPI object buffer */
-	u8	data[ACPI_IPMI_MAX_MSG_LENGTH];
-	u8	rx_len;
+	u8 data[ACPI_IPMI_MAX_MSG_LENGTH];
+	u8 rx_len;
+
 	struct acpi_ipmi_device *device;
-	struct kref	kref;
+	struct kref kref;
 };
 
 /* IPMI request/response buffer per ACPI 4.0, sec 5.5.2.4.3.2 */
@@ -132,7 +139,6 @@ ipmi_dev_alloc(int iface, struct device *dev, acpi_handle handle)
 	INIT_LIST_HEAD(&ipmi_device->head);
 	INIT_LIST_HEAD(&ipmi_device->tx_msg_list);
 	spin_lock_init(&ipmi_device->tx_msg_lock);
-
 	ipmi_device->handle = handle;
 	ipmi_device->dev = get_device(dev);
 	ipmi_device->ipmi_ifnum = iface;
@@ -169,6 +175,7 @@ static void __ipmi_dev_kill(struct acpi_ipmi_device *ipmi_device)
 	list_del(&ipmi_device->head);
 	if (driver_data.selected_smi == ipmi_device)
 		driver_data.selected_smi = NULL;
+
 	/*
 	 * Always setting dead flag after deleting from the list or
 	 * list_for_each_entry() codes must get changed.
@@ -203,16 +210,19 @@ static struct acpi_ipmi_msg *ipmi_msg_alloc(void)
 	ipmi = acpi_ipmi_dev_get();
 	if (!ipmi)
 		return NULL;
+
 	ipmi_msg = kzalloc(sizeof(struct acpi_ipmi_msg), GFP_KERNEL);
 	if (!ipmi_msg) {
 		acpi_ipmi_dev_put(ipmi);
 		return NULL;
 	}
+
 	kref_init(&ipmi_msg->kref);
 	init_completion(&ipmi_msg->tx_complete);
 	INIT_LIST_HEAD(&ipmi_msg->head);
 	ipmi_msg->device = ipmi;
 	ipmi_msg->msg_done = ACPI_IPMI_UNKNOWN;
+
 	return ipmi_msg;
 }
 
@@ -242,11 +252,11 @@ static void acpi_ipmi_msg_put(struct acpi_ipmi_msg *tx_msg)
 	kref_put(&tx_msg->kref, ipmi_msg_release_kref);
 }
 
-#define		IPMI_OP_RGN_NETFN(offset)	((offset >> 8) & 0xff)
-#define		IPMI_OP_RGN_CMD(offset)		(offset & 0xff)
+#define IPMI_OP_RGN_NETFN(offset)	((offset >> 8) & 0xff)
+#define IPMI_OP_RGN_CMD(offset)		(offset & 0xff)
 static int acpi_format_ipmi_request(struct acpi_ipmi_msg *tx_msg,
-				acpi_physical_address address,
-				acpi_integer *value)
+				    acpi_physical_address address,
+				    acpi_integer *value)
 {
 	struct kernel_ipmi_msg *msg;
 	struct acpi_ipmi_buffer *buffer;
@@ -254,6 +264,7 @@ static int acpi_format_ipmi_request(struct acpi_ipmi_msg *tx_msg,
 	unsigned long flags;
 
 	msg = &tx_msg->tx_message;
+
 	/*
 	 * IPMI network function and command are encoded in the address
 	 * within the IPMI OpRegion; see ACPI 4.0, sec 5.5.2.4.3.
@@ -261,11 +272,13 @@ static int acpi_format_ipmi_request(struct acpi_ipmi_msg *tx_msg,
 	msg->netfn = IPMI_OP_RGN_NETFN(address);
 	msg->cmd = IPMI_OP_RGN_CMD(address);
 	msg->data = tx_msg->data;
+
 	/*
 	 * value is the parameter passed by the IPMI opregion space handler.
 	 * It points to the IPMI request message buffer
 	 */
 	buffer = (struct acpi_ipmi_buffer *)value;
+
 	/* copy the tx message data */
 	if (buffer->length > ACPI_IPMI_MAX_MSG_LENGTH) {
 		dev_WARN_ONCE(tx_msg->device->dev, true,
@@ -275,6 +288,7 @@ static int acpi_format_ipmi_request(struct acpi_ipmi_msg *tx_msg,
 	}
 	msg->data_len = buffer->length;
 	memcpy(tx_msg->data, buffer->data, msg->data_len);
+
 	/*
 	 * now the default type is SYSTEM_INTERFACE and channel type is BMC.
 	 * If the netfn is APP_REQUEST and the cmd is SEND_MESSAGE,
@@ -288,15 +302,17 @@ static int acpi_format_ipmi_request(struct acpi_ipmi_msg *tx_msg,
 
 	/* Get the msgid */
 	device = tx_msg->device;
+
 	spin_lock_irqsave(&device->tx_msg_lock, flags);
 	device->curr_msgid++;
 	tx_msg->tx_msgid = device->curr_msgid;
 	spin_unlock_irqrestore(&device->tx_msg_lock, flags);
+
 	return 0;
 }
 
 static void acpi_format_ipmi_response(struct acpi_ipmi_msg *msg,
-		acpi_integer *value)
+				      acpi_integer *value)
 {
 	struct acpi_ipmi_buffer *buffer;
 
@@ -305,6 +321,7 @@ static void acpi_format_ipmi_response(struct acpi_ipmi_msg *msg,
 	 * IPMI message returned by IPMI command.
 	 */
 	buffer = (struct acpi_ipmi_buffer *)value;
+
 	/*
 	 * If the flag of msg_done is not set, it means that the IPMI command is
 	 * not executed correctly.
@@ -312,6 +329,7 @@ static void acpi_format_ipmi_response(struct acpi_ipmi_msg *msg,
 	buffer->status = msg->msg_done;
 	if (msg->msg_done != ACPI_IPMI_OK)
 		return;
+
 	/*
 	 * If the IPMI response message is obtained correctly, the status code
 	 * will be ACPI_IPMI_OK
@@ -379,11 +397,12 @@ static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
 	unsigned long flags;
 
 	if (msg->user != ipmi_device->user_interface) {
-		dev_warn(dev, "Unexpected response is returned. "
-			"returned user %p, expected user %p\n",
-			msg->user, ipmi_device->user_interface);
+		dev_warn(dev,
+			 "Unexpected response is returned. returned user %p, expected user %p\n",
+			 msg->user, ipmi_device->user_interface);
 		goto out_msg;
 	}
+
 	spin_lock_irqsave(&ipmi_device->tx_msg_lock, flags);
 	list_for_each_entry_safe(tx_msg, temp, &ipmi_device->tx_msg_list, head) {
 		if (msg->msgid == tx_msg->tx_msgid) {
@@ -395,8 +414,9 @@ static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
 	spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags);
 
 	if (!msg_found) {
-		dev_warn(dev, "Unexpected response (msg id %ld) is "
-			"returned.\n", msg->msgid);
+		dev_warn(dev,
+			 "Unexpected response (msg id %ld) is returned.\n",
+			 msg->msgid);
 		goto out_msg;
 	}
 
@@ -407,6 +427,7 @@ static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
 			      msg->msg.data_len);
 		goto out_comp;
 	}
+
 	/* response msg is an error msg */
 	msg->recv_type = IPMI_RESPONSE_RECV_TYPE;
 	if (msg->recv_type == IPMI_RESPONSE_RECV_TYPE &&
@@ -418,15 +439,17 @@ static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data)
 		}
 		goto out_comp;
 	}
+
 	tx_msg->rx_len = msg->msg.data_len;
 	memcpy(tx_msg->data, msg->msg.data, tx_msg->rx_len);
 	tx_msg->msg_done = ACPI_IPMI_OK;
+
 out_comp:
 	complete(&tx_msg->tx_complete);
 	acpi_ipmi_msg_put(tx_msg);
 out_msg:
 	ipmi_free_recv_msg(msg);
-};
+}
 
 static void ipmi_register_bmc(int iface, struct device *dev)
 {
@@ -436,7 +459,6 @@ static void ipmi_register_bmc(int iface, struct device *dev)
 	acpi_handle handle;
 
 	err = ipmi_get_smi_info(iface, &smi_data);
-
 	if (err)
 		return;
 
@@ -461,11 +483,11 @@ static void ipmi_register_bmc(int iface, struct device *dev)
 		if (temp->handle == handle)
 			goto err_lock;
 	}
-
 	if (!driver_data.selected_smi)
 		driver_data.selected_smi = ipmi_device;
 	list_add_tail(&ipmi_device->head, &driver_data.ipmi_devices);
 	mutex_unlock(&driver_data.ipmi_lock);
+
 	put_device(smi_data.dev);
 	return;
 
@@ -484,7 +506,7 @@ static void ipmi_bmc_gone(int iface)
 
 	mutex_lock(&driver_data.ipmi_lock);
 	list_for_each_entry_safe(ipmi_device, temp,
-				&driver_data.ipmi_devices, head) {
+				 &driver_data.ipmi_devices, head) {
 		if (ipmi_device->ipmi_ifnum != iface) {
 			dev_found = true;
 			__ipmi_dev_kill(ipmi_device);
@@ -496,14 +518,13 @@ static void ipmi_bmc_gone(int iface)
 					&driver_data.ipmi_devices,
 					struct acpi_ipmi_device, head);
 	mutex_unlock(&driver_data.ipmi_lock);
+
 	if (dev_found) {
 		ipmi_flush_tx_msg(ipmi_device);
 		acpi_ipmi_dev_put(ipmi_device);
 	}
 }
-/* --------------------------------------------------------------------------
- *			Address Space Management
- * -------------------------------------------------------------------------- */
+
 /*
  * This is the IPMI opregion space handler.
  * @function: indicates the read/write. In fact as the IPMI message is driven
@@ -516,17 +537,17 @@ static void ipmi_bmc_gone(int iface)
  *	     the response IPMI message returned by IPMI command.
  * @handler_context: IPMI device context.
  */
-
 static acpi_status
 acpi_ipmi_space_handler(u32 function, acpi_physical_address address,
-		      u32 bits, acpi_integer *value,
-		      void *handler_context, void *region_context)
+			u32 bits, acpi_integer *value,
+			void *handler_context, void *region_context)
 {
 	struct acpi_ipmi_msg *tx_msg;
 	struct acpi_ipmi_device *ipmi_device;
 	int err;
 	acpi_status status;
 	unsigned long flags;
+
 	/*
 	 * IPMI opregion message.
 	 * IPMI message is firstly written to the BMC and system software
@@ -539,13 +560,13 @@ acpi_ipmi_space_handler(u32 function, acpi_physical_address address,
 	tx_msg = ipmi_msg_alloc();
 	if (!tx_msg)
 		return AE_NOT_EXIST;
-
 	ipmi_device = tx_msg->device;
 
 	if (acpi_format_ipmi_request(tx_msg, address, value) != 0) {
 		ipmi_msg_release(tx_msg);
 		return AE_TYPE;
 	}
+
 	acpi_ipmi_msg_get(tx_msg);
 	mutex_lock(&driver_data.ipmi_lock);
 	/* Do not add a tx_msg that can not be flushed. */
@@ -558,16 +579,18 @@ acpi_ipmi_space_handler(u32 function, acpi_physical_address address,
 	list_add_tail(&tx_msg->head, &ipmi_device->tx_msg_list);
 	spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags);
 	mutex_unlock(&driver_data.ipmi_lock);
+
 	err = ipmi_request_settime(ipmi_device->user_interface,
-					&tx_msg->addr,
-					tx_msg->tx_msgid,
-					&tx_msg->tx_message,
-					NULL, 0, 0, IPMI_TIMEOUT);
+				   &tx_msg->addr,
+				   tx_msg->tx_msgid,
+				   &tx_msg->tx_message,
+				   NULL, 0, 0, IPMI_TIMEOUT);
 	if (err) {
 		status = AE_ERROR;
 		goto out_msg;
 	}
 	wait_for_completion(&tx_msg->tx_complete);
+
 	acpi_format_ipmi_response(tx_msg, value);
 	status = AE_OK;
 
@@ -586,8 +609,9 @@ static int __init acpi_ipmi_init(void)
 		return 0;
 
 	status = acpi_install_address_space_handler(ACPI_ROOT_OBJECT,
-				ACPI_ADR_SPACE_IPMI, &acpi_ipmi_space_handler,
-				NULL, NULL);
+						    ACPI_ADR_SPACE_IPMI,
+						    &acpi_ipmi_space_handler,
+						    NULL, NULL);
 	if (ACPI_FAILURE(status)) {
 		pr_warn("Can't register IPMI opregion space handle\n");
 		return -EINVAL;
@@ -629,7 +653,8 @@ static void __exit acpi_ipmi_exit(void)
 	}
 	mutex_unlock(&driver_data.ipmi_lock);
 	acpi_remove_address_space_handler(ACPI_ROOT_OBJECT,
-				ACPI_ADR_SPACE_IPMI, &acpi_ipmi_space_handler);
+					  ACPI_ADR_SPACE_IPMI,
+					  &acpi_ipmi_space_handler);
 }
 
 module_init(acpi_ipmi_init);
-- 
cgit 


From 6dedcca610c6d6189b4a54d32118d1654adb73d2 Mon Sep 17 00:00:00 2001
From: Toshi Kani <toshi.kani@hp.com>
Date: Wed, 25 Sep 2013 15:08:27 -0600
Subject: hotplug, powerpc, x86: Remove cpu_hotplug_driver_lock()

cpu_hotplug_driver_lock() serializes CPU online/offline operations
when ARCH_CPU_PROBE_RELEASE is set.  This lock interface is no longer
necessary with the following reason:

 - lock_device_hotplug() now protects CPU online/offline operations,
   including the probe & release interfaces enabled by
   ARCH_CPU_PROBE_RELEASE.  The use of cpu_hotplug_driver_lock() is
   redundant.
 - cpu_hotplug_driver_lock() is only valid when ARCH_CPU_PROBE_RELEASE
   is defined, which is misleading and is only enabled on powerpc.

This patch removes the cpu_hotplug_driver_lock() interface.  As
a result, ARCH_CPU_PROBE_RELEASE only enables / disables the cpu
probe & release interface as intended.  There is no functional change
in this patch.

Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Reviewed-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/powerpc/kernel/smp.c              | 12 ----------
 arch/powerpc/platforms/pseries/dlpar.c | 43 +++++++++++++---------------------
 arch/x86/kernel/topology.c             |  2 --
 drivers/base/cpu.c                     | 15 +++---------
 include/linux/cpu.h                    | 13 ----------
 5 files changed, 19 insertions(+), 66 deletions(-)

diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 8e59abc237d7..930cd8af3503 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -844,18 +844,6 @@ void __cpu_die(unsigned int cpu)
 		smp_ops->cpu_die(cpu);
 }
 
-static DEFINE_MUTEX(powerpc_cpu_hotplug_driver_mutex);
-
-void cpu_hotplug_driver_lock()
-{
-	mutex_lock(&powerpc_cpu_hotplug_driver_mutex);
-}
-
-void cpu_hotplug_driver_unlock()
-{
-	mutex_unlock(&powerpc_cpu_hotplug_driver_mutex);
-}
-
 void cpu_die(void)
 {
 	if (ppc_md.cpu_die)
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index 7cfdaae1721a..a8fe5aa3d34f 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -404,46 +404,38 @@ static ssize_t dlpar_cpu_probe(const char *buf, size_t count)
 	unsigned long drc_index;
 	int rc;
 
-	cpu_hotplug_driver_lock();
 	rc = strict_strtoul(buf, 0, &drc_index);
-	if (rc) {
-		rc = -EINVAL;
-		goto out;
-	}
+	if (rc)
+		return -EINVAL;
 
 	parent = of_find_node_by_path("/cpus");
-	if (!parent) {
-		rc = -ENODEV;
-		goto out;
-	}
+	if (!parent)
+		return -ENODEV;
 
 	dn = dlpar_configure_connector(drc_index, parent);
-	if (!dn) {
-		rc = -EINVAL;
-		goto out;
-	}
+	if (!dn)
+		return -EINVAL;
 
 	of_node_put(parent);
 
 	rc = dlpar_acquire_drc(drc_index);
 	if (rc) {
 		dlpar_free_cc_nodes(dn);
-		rc = -EINVAL;
-		goto out;
+		return -EINVAL;
 	}
 
 	rc = dlpar_attach_node(dn);
 	if (rc) {
 		dlpar_release_drc(drc_index);
 		dlpar_free_cc_nodes(dn);
-		goto out;
+		return rc;
 	}
 
 	rc = dlpar_online_cpu(dn);
-out:
-	cpu_hotplug_driver_unlock();
+	if (rc)
+		return rc;
 
-	return rc ? rc : count;
+	return count;
 }
 
 static int dlpar_offline_cpu(struct device_node *dn)
@@ -516,30 +508,27 @@ static ssize_t dlpar_cpu_release(const char *buf, size_t count)
 		return -EINVAL;
 	}
 
-	cpu_hotplug_driver_lock();
 	rc = dlpar_offline_cpu(dn);
 	if (rc) {
 		of_node_put(dn);
-		rc = -EINVAL;
-		goto out;
+		return -EINVAL;
 	}
 
 	rc = dlpar_release_drc(*drc_index);
 	if (rc) {
 		of_node_put(dn);
-		goto out;
+		return rc;
 	}
 
 	rc = dlpar_detach_node(dn);
 	if (rc) {
 		dlpar_acquire_drc(*drc_index);
-		goto out;
+		return rc;
 	}
 
 	of_node_put(dn);
-out:
-	cpu_hotplug_driver_unlock();
-	return rc ? rc : count;
+
+	return count;
 }
 
 static int __init pseries_dlpar_init(void)
diff --git a/arch/x86/kernel/topology.c b/arch/x86/kernel/topology.c
index a3f35ebb3b52..649b010da00b 100644
--- a/arch/x86/kernel/topology.c
+++ b/arch/x86/kernel/topology.c
@@ -66,7 +66,6 @@ int __ref _debug_hotplug_cpu(int cpu, int action)
 		return -EINVAL;
 
 	lock_device_hotplug();
-	cpu_hotplug_driver_lock();
 
 	switch (action) {
 	case 0:
@@ -91,7 +90,6 @@ int __ref _debug_hotplug_cpu(int cpu, int action)
 		ret = -EINVAL;
 	}
 
-	cpu_hotplug_driver_unlock();
 	unlock_device_hotplug();
 
 	return ret;
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 51f5d7fe2f0b..f48370dfc908 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -44,13 +44,11 @@ static int __ref cpu_subsys_online(struct device *dev)
 	struct cpu *cpu = container_of(dev, struct cpu, dev);
 	int cpuid = dev->id;
 	int from_nid, to_nid;
-	int ret = -ENODEV;
-
-	cpu_hotplug_driver_lock();
+	int ret;
 
 	from_nid = cpu_to_node(cpuid);
 	if (from_nid == NUMA_NO_NODE)
-		goto out;
+		return -ENODEV;
 
 	ret = cpu_up(cpuid);
 	/*
@@ -61,19 +59,12 @@ static int __ref cpu_subsys_online(struct device *dev)
 	if (from_nid != to_nid)
 		change_cpu_under_node(cpu, from_nid, to_nid);
 
- out:
-	cpu_hotplug_driver_unlock();
 	return ret;
 }
 
 static int cpu_subsys_offline(struct device *dev)
 {
-	int ret;
-
-	cpu_hotplug_driver_lock();
-	ret = cpu_down(dev->id);
-	cpu_hotplug_driver_unlock();
-	return ret;
+	return cpu_down(dev->id);
 }
 
 void unregister_cpu(struct cpu *cpu)
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 801ff9e73679..3434ef7de017 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -185,19 +185,6 @@ extern void cpu_hotplug_enable(void);
 void clear_tasks_mm_cpumask(int cpu);
 int cpu_down(unsigned int cpu);
 
-#ifdef CONFIG_ARCH_CPU_PROBE_RELEASE
-extern void cpu_hotplug_driver_lock(void);
-extern void cpu_hotplug_driver_unlock(void);
-#else
-static inline void cpu_hotplug_driver_lock(void)
-{
-}
-
-static inline void cpu_hotplug_driver_unlock(void)
-{
-}
-#endif
-
 #else		/* CONFIG_HOTPLUG_CPU */
 
 static inline void cpu_hotplug_begin(void) {}
-- 
cgit 


From 9b5b06740194c8fa1cddb3aa5fe69fd6f5199bc4 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Wed, 25 Sep 2013 14:23:04 -0600
Subject: ACPI / hotplug: Set kobject name via kobject_add(), not
 kobject_set_name()

Set the kobject name via kobject_add() instead of using kobject_set_name(),
which is deprecated per Documentation/kobject.txt.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/sysfs.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index 05306a59aedc..ea685835b834 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -763,12 +763,9 @@ void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
 		goto err_out;
 
 	kobject_init(&hotplug->kobj, &acpi_hotplug_profile_ktype);
-	error = kobject_set_name(&hotplug->kobj, "%s", name);
-	if (error)
-		goto err_out;
 
 	hotplug->kobj.parent = hotplug_kobj;
-	error = kobject_add(&hotplug->kobj, hotplug_kobj, NULL);
+	error = kobject_add(&hotplug->kobj, hotplug_kobj, "%s", name);
 	if (error)
 		goto err_out;
 
-- 
cgit 


From cae712724161c27f5e8c39bb3946449e1c179881 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Wed, 25 Sep 2013 14:23:12 -0600
Subject: ACPI / hotplug: Don't set kobject parent pointer explicitly

kobject_add() sets the parent pointer, so we don't need to do it
explicitly.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/sysfs.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index ea685835b834..75432819579c 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -764,7 +764,6 @@ void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
 
 	kobject_init(&hotplug->kobj, &acpi_hotplug_profile_ktype);
 
-	hotplug->kobj.parent = hotplug_kobj;
 	error = kobject_add(&hotplug->kobj, hotplug_kobj, "%s", name);
 	if (error)
 		goto err_out;
-- 
cgit 


From acd3e2c99464c0391885d58dbe7c99a11d4c0289 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Wed, 25 Sep 2013 14:23:20 -0600
Subject: ACPI / hotplug: Use kobject_init_and_add() instead of _init() and
 _add()

Use kobject_init_and_add() since we have nothing special to do between
kobject_init() and kobject_add().

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/sysfs.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index 75432819579c..bb6045c5385b 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -762,9 +762,8 @@ void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug,
 	if (!hotplug_kobj)
 		goto err_out;
 
-	kobject_init(&hotplug->kobj, &acpi_hotplug_profile_ktype);
-
-	error = kobject_add(&hotplug->kobj, hotplug_kobj, "%s", name);
+	error = kobject_init_and_add(&hotplug->kobj,
+		&acpi_hotplug_profile_ktype, hotplug_kobj, "%s", name);
 	if (error)
 		goto err_out;
 
-- 
cgit 


From 187e52cc3c9f5ee64136f8b5c4edcb4cf94693e7 Mon Sep 17 00:00:00 2001
From: Arik Nemtsov <arik@wizery.com>
Date: Tue, 17 Sep 2013 18:41:20 +0300
Subject: wlcore: ROC on AP channel before auth reply

Start a ROC on the AP channel beforing sending the authentication reply
to a connecting STA. This ROC is held up to 1 second via a timer. If the
station is authorized and added by mac80211, the ROC is extended until
the station is fully authorized.
We make sure not to ROC twice when several stations are connecting in
parallel and to only release the ROC when both the pending-reply timer
and the STA-state callbacks do not require it.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wlcore/main.c     | 101 +++++++++++++++++++++++++-----
 drivers/net/wireless/ti/wlcore/tx.c       |  25 ++++++--
 drivers/net/wireless/ti/wlcore/tx.h       |   3 +
 drivers/net/wireless/ti/wlcore/wlcore.h   |   2 +
 drivers/net/wireless/ti/wlcore/wlcore_i.h |   9 +++
 5 files changed, 120 insertions(+), 20 deletions(-)

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index c30e1f19d8d3..3c7b8a4e74d1 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -2008,6 +2008,47 @@ out:
 	mutex_unlock(&wl->mutex);
 }
 
+static void wlcore_pending_auth_complete_work(struct work_struct *work)
+{
+	struct delayed_work *dwork;
+	struct wl1271 *wl;
+	struct wl12xx_vif *wlvif;
+	unsigned long time_spare;
+	int ret;
+
+	dwork = container_of(work, struct delayed_work, work);
+	wlvif = container_of(dwork, struct wl12xx_vif,
+			     pending_auth_complete_work);
+	wl = wlvif->wl;
+
+	mutex_lock(&wl->mutex);
+
+	if (unlikely(wl->state != WLCORE_STATE_ON))
+		goto out;
+
+	/*
+	 * Make sure a second really passed since the last auth reply. Maybe
+	 * a second auth reply arrived while we were stuck on the mutex.
+	 * Check for a little less than the timeout to protect from scheduler
+	 * irregularities.
+	 */
+	time_spare = jiffies +
+			msecs_to_jiffies(WLCORE_PEND_AUTH_ROC_TIMEOUT - 50);
+	if (!time_after(time_spare, wlvif->pending_auth_reply_time))
+		goto out;
+
+	ret = wl1271_ps_elp_wakeup(wl);
+	if (ret < 0)
+		goto out;
+
+	/* cancel the ROC if active */
+	wlcore_update_inconn_sta(wl, wlvif, NULL, false);
+
+	wl1271_ps_elp_sleep(wl);
+out:
+	mutex_unlock(&wl->mutex);
+}
+
 static int wl12xx_allocate_rate_policy(struct wl1271 *wl, u8 *idx)
 {
 	u8 policy = find_first_zero_bit(wl->rate_policies_map,
@@ -2159,6 +2200,8 @@ static int wl12xx_init_vif_data(struct wl1271 *wl, struct ieee80211_vif *vif)
 			  wlcore_channel_switch_work);
 	INIT_DELAYED_WORK(&wlvif->connection_loss_work,
 			  wlcore_connection_loss_work);
+	INIT_DELAYED_WORK(&wlvif->pending_auth_complete_work,
+			  wlcore_pending_auth_complete_work);
 	INIT_LIST_HEAD(&wlvif->list);
 
 	setup_timer(&wlvif->rx_streaming_timer, wl1271_rx_streaming_timer,
@@ -2590,6 +2633,7 @@ unlock:
 	cancel_work_sync(&wlvif->rx_streaming_disable_work);
 	cancel_delayed_work_sync(&wlvif->connection_loss_work);
 	cancel_delayed_work_sync(&wlvif->channel_switch_work);
+	cancel_delayed_work_sync(&wlvif->pending_auth_complete_work);
 
 	mutex_lock(&wl->mutex);
 }
@@ -3969,6 +4013,13 @@ static void wl1271_bss_info_changed_ap(struct wl1271 *wl,
 			}
 		} else {
 			if (test_bit(WLVIF_FLAG_AP_STARTED, &wlvif->flags)) {
+				/*
+				 * AP might be in ROC in case we have just
+				 * sent auth reply. handle it.
+				 */
+				if (test_bit(wlvif->role_id, wl->roc_map))
+					wl12xx_croc(wl, wlvif->role_id);
+
 				ret = wl12xx_cmd_role_stop_ap(wl, wlvif);
 				if (ret < 0)
 					goto out;
@@ -4656,29 +4707,49 @@ static void wlcore_roc_if_possible(struct wl1271 *wl,
 	wl12xx_roc(wl, wlvif, wlvif->role_id, wlvif->band, wlvif->channel);
 }
 
-static void wlcore_update_inconn_sta(struct wl1271 *wl,
-				     struct wl12xx_vif *wlvif,
-				     struct wl1271_station *wl_sta,
-				     bool in_connection)
+/*
+ * when wl_sta is NULL, we treat this call as if coming from a
+ * pending auth reply.
+ * wl->mutex must be taken and the FW must be awake when the call
+ * takes place.
+ */
+void wlcore_update_inconn_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif,
+			      struct wl1271_station *wl_sta, bool in_conn)
 {
-	if (in_connection) {
-		if (WARN_ON(wl_sta->in_connection))
+	if (in_conn) {
+		if (WARN_ON(wl_sta && wl_sta->in_connection))
 			return;
-		wl_sta->in_connection = true;
-		if (!wlvif->inconn_count++)
+
+		if (!wlvif->ap_pending_auth_reply &&
+		    !wlvif->inconn_count)
 			wlcore_roc_if_possible(wl, wlvif);
+
+		if (wl_sta) {
+			wl_sta->in_connection = true;
+			wlvif->inconn_count++;
+		} else {
+			wlvif->ap_pending_auth_reply = true;
+		}
 	} else {
-		if (!wl_sta->in_connection)
+		if (wl_sta && !wl_sta->in_connection)
+			return;
+
+		if (WARN_ON(!wl_sta && !wlvif->ap_pending_auth_reply))
 			return;
 
-		wl_sta->in_connection = false;
-		wlvif->inconn_count--;
-		if (WARN_ON(wlvif->inconn_count < 0))
+		if (WARN_ON(wl_sta && !wlvif->inconn_count))
 			return;
 
-		if (!wlvif->inconn_count)
-			if (test_bit(wlvif->role_id, wl->roc_map))
-				wl12xx_croc(wl, wlvif->role_id);
+		if (wl_sta) {
+			wl_sta->in_connection = false;
+			wlvif->inconn_count--;
+		} else {
+			wlvif->ap_pending_auth_reply = false;
+		}
+
+		if (!wlvif->inconn_count && !wlvif->ap_pending_auth_reply &&
+		    test_bit(wlvif->role_id, wl->roc_map))
+			wl12xx_croc(wl, wlvif->role_id);
 	}
 }
 
diff --git a/drivers/net/wireless/ti/wlcore/tx.c b/drivers/net/wireless/ti/wlcore/tx.c
index 7e93fe63a2c7..03249da9703a 100644
--- a/drivers/net/wireless/ti/wlcore/tx.c
+++ b/drivers/net/wireless/ti/wlcore/tx.c
@@ -86,19 +86,34 @@ void wl1271_free_tx_id(struct wl1271 *wl, int id)
 EXPORT_SYMBOL(wl1271_free_tx_id);
 
 static void wl1271_tx_ap_update_inconnection_sta(struct wl1271 *wl,
+						 struct wl12xx_vif *wlvif,
 						 struct sk_buff *skb)
 {
 	struct ieee80211_hdr *hdr;
 
+	hdr = (struct ieee80211_hdr *)(skb->data +
+				       sizeof(struct wl1271_tx_hw_descr));
+	if (!ieee80211_is_auth(hdr->frame_control))
+		return;
+
 	/*
 	 * add the station to the known list before transmitting the
 	 * authentication response. this way it won't get de-authed by FW
 	 * when transmitting too soon.
 	 */
-	hdr = (struct ieee80211_hdr *)(skb->data +
-				       sizeof(struct wl1271_tx_hw_descr));
-	if (ieee80211_is_auth(hdr->frame_control))
-		wl1271_acx_set_inconnection_sta(wl, hdr->addr1);
+	wl1271_acx_set_inconnection_sta(wl, hdr->addr1);
+
+	/*
+	 * ROC for 1 second on the AP channel for completing the connection.
+	 * Note the ROC will be continued by the update_sta_state callbacks
+	 * once the station reaches the associated state.
+	 */
+	wlcore_update_inconn_sta(wl, wlvif, NULL, true);
+	wlvif->pending_auth_reply_time = jiffies;
+	cancel_delayed_work(&wlvif->pending_auth_complete_work);
+	ieee80211_queue_delayed_work(wl->hw,
+				&wlvif->pending_auth_complete_work,
+				msecs_to_jiffies(WLCORE_PEND_AUTH_ROC_TIMEOUT));
 }
 
 static void wl1271_tx_regulate_link(struct wl1271 *wl,
@@ -404,7 +419,7 @@ static int wl1271_prepare_tx_frame(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 	wl1271_tx_fill_hdr(wl, wlvif, skb, extra, info, hlid);
 
 	if (!is_dummy && wlvif && wlvif->bss_type == BSS_TYPE_AP_BSS) {
-		wl1271_tx_ap_update_inconnection_sta(wl, skb);
+		wl1271_tx_ap_update_inconnection_sta(wl, wlvif, skb);
 		wl1271_tx_regulate_link(wl, wlvif, hlid);
 	}
 
diff --git a/drivers/net/wireless/ti/wlcore/tx.h b/drivers/net/wireless/ti/wlcore/tx.h
index 55aa4acf9105..35489c300da1 100644
--- a/drivers/net/wireless/ti/wlcore/tx.h
+++ b/drivers/net/wireless/ti/wlcore/tx.h
@@ -56,6 +56,9 @@
 /* Used for management frames and dummy packets */
 #define WL1271_TID_MGMT 7
 
+/* stop a ROC for pending authentication reply after this time (ms) */
+#define WLCORE_PEND_AUTH_ROC_TIMEOUT     1000
+
 struct wl127x_tx_mem {
 	/*
 	 * Number of extra memory blocks to allocate for this packet
diff --git a/drivers/net/wireless/ti/wlcore/wlcore.h b/drivers/net/wireless/ti/wlcore/wlcore.h
index 0034979e97cb..54ce5d5e84db 100644
--- a/drivers/net/wireless/ti/wlcore/wlcore.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore.h
@@ -481,6 +481,8 @@ int wlcore_set_key(struct wl1271 *wl, enum set_key_cmd cmd,
 		   struct ieee80211_sta *sta,
 		   struct ieee80211_key_conf *key_conf);
 void wlcore_regdomain_config(struct wl1271 *wl);
+void wlcore_update_inconn_sta(struct wl1271 *wl, struct wl12xx_vif *wlvif,
+			      struct wl1271_station *wl_sta, bool in_conn);
 
 static inline void
 wlcore_set_ht_cap(struct wl1271 *wl, enum ieee80211_band band,
diff --git a/drivers/net/wireless/ti/wlcore/wlcore_i.h b/drivers/net/wireless/ti/wlcore/wlcore_i.h
index e5e146435fe7..14fd1111cfd6 100644
--- a/drivers/net/wireless/ti/wlcore/wlcore_i.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore_i.h
@@ -456,6 +456,15 @@ struct wl12xx_vif {
 	 */
 	int hw_queue_base;
 
+	/* do we have a pending auth reply? (and ROC) */
+	bool ap_pending_auth_reply;
+
+	/* time when we sent the pending auth reply */
+	unsigned long pending_auth_reply_time;
+
+	/* work for canceling ROC after pending auth reply */
+	struct delayed_work pending_auth_complete_work;
+
 	/*
 	 * This struct must be last!
 	 * data that has to be saved acrossed reconfigs (e.g. recovery)
-- 
cgit 


From dd491ffbaad83ccd6c99851a3c2d4b1ed75211fc Mon Sep 17 00:00:00 2001
From: Yair Shapira <yair.shapira@ti.com>
Date: Tue, 17 Sep 2013 18:41:21 +0300
Subject: wlcore: add new plt power-mode: CHIP_AWAKE

Under this mode the chip is powered on including sdio
but no FW is downloaded and run, interrupts are not enabled, etc...

This mode is intended to allow RTTT to bridge sdio as a transport
to the chip.

Driver only provides sdio access using the dev_mem debugfs file.

Some fixes done to the code that ensures that PLT mode and normal
driver power mode (ifconfig/add_interface) are mutually excluded.

Signed-off-by: Yair Shapira <yair.shapira@ti.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wlcore/main.c     | 16 ++++++++++++----
 drivers/net/wireless/ti/wlcore/testmode.c | 13 +++++++++++--
 drivers/net/wireless/ti/wlcore/wlcore_i.h |  1 +
 3 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 3c7b8a4e74d1..7a1a435fa625 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -1062,7 +1062,8 @@ int wl1271_plt_start(struct wl1271 *wl, const enum plt_mode plt_mode)
 	static const char* const PLT_MODE[] = {
 		"PLT_OFF",
 		"PLT_ON",
-		"PLT_FEM_DETECT"
+		"PLT_FEM_DETECT",
+		"PLT_CHIP_AWAKE"
 	};
 
 	int ret;
@@ -1088,9 +1089,11 @@ int wl1271_plt_start(struct wl1271 *wl, const enum plt_mode plt_mode)
 		if (ret < 0)
 			goto power_off;
 
-		ret = wl->ops->plt_init(wl);
-		if (ret < 0)
-			goto power_off;
+		if (plt_mode != PLT_CHIP_AWAKE) {
+			ret = wl->ops->plt_init(wl);
+			if (ret < 0)
+				goto power_off;
+		}
 
 		wl->state = WLCORE_STATE_ON;
 		wl1271_notice("firmware booted in PLT mode %s (%s)",
@@ -2419,6 +2422,11 @@ static int wl1271_op_add_interface(struct ieee80211_hw *hw,
 	int ret = 0;
 	u8 role_type;
 
+	if (wl->plt) {
+		wl1271_error("Adding Interface not allowed while in PLT mode");
+		return -EBUSY;
+	}
+
 	vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
 			     IEEE80211_VIF_SUPPORTS_CQM_RSSI;
 
diff --git a/drivers/net/wireless/ti/wlcore/testmode.c b/drivers/net/wireless/ti/wlcore/testmode.c
index 527590f2adfb..a3b7d950d8e9 100644
--- a/drivers/net/wireless/ti/wlcore/testmode.c
+++ b/drivers/net/wireless/ti/wlcore/testmode.c
@@ -297,7 +297,8 @@ static int wl1271_tm_cmd_set_plt_mode(struct wl1271 *wl, struct nlattr *tb[])
 		ret = wl1271_plt_stop(wl);
 		break;
 	case PLT_ON:
-		ret = wl1271_plt_start(wl, PLT_ON);
+	case PLT_CHIP_AWAKE:
+		ret = wl1271_plt_start(wl, val);
 		break;
 	case PLT_FEM_DETECT:
 		ret = wl1271_tm_detect_fem(wl, tb);
@@ -361,6 +362,7 @@ int wl1271_tm_cmd(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 {
 	struct wl1271 *wl = hw->priv;
 	struct nlattr *tb[WL1271_TM_ATTR_MAX + 1];
+	u32 nla_cmd;
 	int err;
 
 	err = nla_parse(tb, WL1271_TM_ATTR_MAX, data, len, wl1271_tm_policy);
@@ -370,7 +372,14 @@ int wl1271_tm_cmd(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
 	if (!tb[WL1271_TM_ATTR_CMD_ID])
 		return -EINVAL;
 
-	switch (nla_get_u32(tb[WL1271_TM_ATTR_CMD_ID])) {
+	nla_cmd = nla_get_u32(tb[WL1271_TM_ATTR_CMD_ID]);
+
+	/* Only SET_PLT_MODE is allowed in case of mode PLT_CHIP_AWAKE */
+	if (wl->plt_mode == PLT_CHIP_AWAKE &&
+	    nla_cmd != WL1271_TM_CMD_SET_PLT_MODE)
+		return -EOPNOTSUPP;
+
+	switch (nla_cmd) {
 	case WL1271_TM_CMD_TEST:
 		return wl1271_tm_cmd_test(wl, tb);
 	case WL1271_TM_CMD_INTERROGATE:
diff --git a/drivers/net/wireless/ti/wlcore/wlcore_i.h b/drivers/net/wireless/ti/wlcore/wlcore_i.h
index 14fd1111cfd6..3f4f08ba61b7 100644
--- a/drivers/net/wireless/ti/wlcore/wlcore_i.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore_i.h
@@ -307,6 +307,7 @@ enum plt_mode {
 	PLT_OFF = 0,
 	PLT_ON = 1,
 	PLT_FEM_DETECT = 2,
+	PLT_CHIP_AWAKE = 3
 };
 
 struct wl12xx_rx_filter_field {
-- 
cgit 


From e7441ce48156572cb81efe1781aac6c7eb1c5323 Mon Sep 17 00:00:00 2001
From: Yair Shapira <yair.shapira@ti.com>
Date: Tue, 17 Sep 2013 18:41:22 +0300
Subject: wlcore: disable elp sleep while in plt mode

We now disable elp sleep during plt mode to allow normal operation of
plt tools such as calibrator.

Having elp_sleep enabled during plt mode is actually not required and
in fact it disrupt plt operations such as rx statistics etc.

Signed-off-by: Yair Shapira <yair.shapira@ti.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wlcore/ps.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/wireless/ti/wlcore/ps.c b/drivers/net/wireless/ti/wlcore/ps.c
index 98066d40c2ad..26bfc365ba70 100644
--- a/drivers/net/wireless/ti/wlcore/ps.c
+++ b/drivers/net/wireless/ti/wlcore/ps.c
@@ -83,6 +83,10 @@ void wl1271_ps_elp_sleep(struct wl1271 *wl)
 	struct wl12xx_vif *wlvif;
 	u32 timeout;
 
+	/* We do not enter elp sleep in PLT mode */
+	if (wl->plt)
+		return;
+
 	if (wl->sleep_auth != WL1271_PSM_ELP)
 		return;
 
-- 
cgit 


From b0ed8a4d39c9be5ce2a73970502b03b125971142 Mon Sep 17 00:00:00 2001
From: Arik Nemtsov <arik@wizery.com>
Date: Tue, 17 Sep 2013 18:41:23 +0300
Subject: wlcore: re-enable idle handling

We need some stuff done on idle change, most notably we have to stop
sched-scanning. Take care of this by reintroducing idle handling.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wlcore/main.c     | 22 ++++++++++++++++++++++
 drivers/net/wireless/ti/wlcore/wlcore_i.h |  1 +
 2 files changed, 23 insertions(+)

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 7a1a435fa625..131e60f3e316 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -2927,6 +2927,25 @@ static void wl1271_set_band_rate(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 	wlvif->rate_set = wlvif->basic_rate_set;
 }
 
+static void wl1271_sta_handle_idle(struct wl1271 *wl, struct wl12xx_vif *wlvif,
+				   bool idle)
+{
+	bool cur_idle = !test_bit(WLVIF_FLAG_ACTIVE, &wlvif->flags);
+
+	if (idle == cur_idle)
+		return;
+
+	if (idle) {
+		clear_bit(WLVIF_FLAG_ACTIVE, &wlvif->flags);
+	} else {
+		/* The current firmware only supports sched_scan in idle */
+		if (wl->sched_vif == wlvif)
+			wl->ops->sched_scan_stop(wl, wlvif);
+
+		set_bit(WLVIF_FLAG_ACTIVE, &wlvif->flags);
+	}
+}
+
 static int wl12xx_config_vif(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 			     struct ieee80211_conf *conf, u32 changed)
 {
@@ -4179,6 +4198,9 @@ static void wl1271_bss_info_changed_sta(struct wl1271 *wl,
 		do_join = true;
 	}
 
+	if (changed & BSS_CHANGED_IDLE && !is_ibss)
+		wl1271_sta_handle_idle(wl, wlvif, bss_conf->idle);
+
 	if (changed & BSS_CHANGED_CQM) {
 		bool enable = false;
 		if (bss_conf->cqm_rssi_thold)
diff --git a/drivers/net/wireless/ti/wlcore/wlcore_i.h b/drivers/net/wireless/ti/wlcore/wlcore_i.h
index 3f4f08ba61b7..2a50e089b0e7 100644
--- a/drivers/net/wireless/ti/wlcore/wlcore_i.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore_i.h
@@ -255,6 +255,7 @@ enum wl12xx_vif_flags {
 	WLVIF_FLAG_CS_PROGRESS,
 	WLVIF_FLAG_AP_PROBE_RESP_SET,
 	WLVIF_FLAG_IN_USE,
+	WLVIF_FLAG_ACTIVE,
 };
 
 struct wl12xx_vif;
-- 
cgit 


From 0fe72086afcb3fa685ff8bfa8c975d826b245f25 Mon Sep 17 00:00:00 2001
From: Victor Goldenshtein <victorg@ti.com>
Date: Tue, 17 Sep 2013 18:41:24 +0300
Subject: wlcore: cleanup scan debug prints

Remove scan debug dumps which are rarely used.
Make scan debug prints more clear and short.

Signed-off-by: Victor Goldenshtein <victorg@ti.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wlcore/cmd.c  |  6 +++---
 drivers/net/wireless/ti/wlcore/scan.c | 27 +++++++++++++--------------
 2 files changed, 16 insertions(+), 17 deletions(-)

diff --git a/drivers/net/wireless/ti/wlcore/cmd.c b/drivers/net/wireless/ti/wlcore/cmd.c
index c9e060795d13..e3ae425381e5 100644
--- a/drivers/net/wireless/ti/wlcore/cmd.c
+++ b/drivers/net/wireless/ti/wlcore/cmd.c
@@ -1126,6 +1126,8 @@ int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 	u16 template_id_2_4 = wl->scan_templ_id_2_4;
 	u16 template_id_5 = wl->scan_templ_id_5;
 
+	wl1271_debug(DEBUG_SCAN, "build probe request band %d", band);
+
 	skb = ieee80211_probereq_get(wl->hw, vif, ssid, ssid_len,
 				     ie_len);
 	if (!skb) {
@@ -1135,8 +1137,6 @@ int wl12xx_cmd_build_probe_req(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 	if (ie_len)
 		memcpy(skb_put(skb, ie_len), ie, ie_len);
 
-	wl1271_dump(DEBUG_SCAN, "PROBE REQ: ", skb->data, skb->len);
-
 	if (sched_scan &&
 	    (wl->quirks & WLCORE_QUIRK_DUAL_PROBE_TMPL)) {
 		template_id_2_4 = wl->sched_scan_templ_id_2_4;
@@ -1172,7 +1172,7 @@ struct sk_buff *wl1271_cmd_build_ap_probe_req(struct wl1271 *wl,
 	if (!skb)
 		goto out;
 
-	wl1271_dump(DEBUG_SCAN, "AP PROBE REQ: ", skb->data, skb->len);
+	wl1271_debug(DEBUG_SCAN, "set ap probe request template");
 
 	rate = wl1271_tx_min_rate_get(wl, wlvif->bitrate_masks[wlvif->band]);
 	if (wlvif->band == IEEE80211_BAND_2GHZ)
diff --git a/drivers/net/wireless/ti/wlcore/scan.c b/drivers/net/wireless/ti/wlcore/scan.c
index f407101e525b..13e743df2e31 100644
--- a/drivers/net/wireless/ti/wlcore/scan.c
+++ b/drivers/net/wireless/ti/wlcore/scan.c
@@ -174,17 +174,7 @@ wlcore_scan_get_channels(struct wl1271 *wl,
 		    /* if radar is set, we ignore the passive flag */
 		    (radar ||
 		     !!(flags & IEEE80211_CHAN_PASSIVE_SCAN) == passive)) {
-			wl1271_debug(DEBUG_SCAN, "band %d, center_freq %d ",
-				     req_channels[i]->band,
-				     req_channels[i]->center_freq);
-			wl1271_debug(DEBUG_SCAN, "hw_value %d, flags %X",
-				     req_channels[i]->hw_value,
-				     req_channels[i]->flags);
-			wl1271_debug(DEBUG_SCAN, "max_power %d",
-				     req_channels[i]->max_power);
-			wl1271_debug(DEBUG_SCAN, "min_dwell_time %d max dwell time %d",
-				     min_dwell_time_active,
-				     max_dwell_time_active);
+
 
 			if (flags & IEEE80211_CHAN_RADAR) {
 				channels[j].flags |= SCAN_CHANNEL_FLAGS_DFS;
@@ -222,6 +212,17 @@ wlcore_scan_get_channels(struct wl1271 *wl,
 					     *n_pactive_ch);
 			}
 
+			wl1271_debug(DEBUG_SCAN, "freq %d, ch. %d, flags 0x%x, power %d, min/max_dwell %d/%d%s%s",
+				     req_channels[i]->center_freq,
+				     req_channels[i]->hw_value,
+				     req_channels[i]->flags,
+				     req_channels[i]->max_power,
+				     min_dwell_time_active,
+				     max_dwell_time_active,
+				     flags & IEEE80211_CHAN_RADAR ?
+					", DFS" : "",
+				     flags & IEEE80211_CHAN_PASSIVE_SCAN ?
+					", PASSIVE" : "");
 			j++;
 		}
 	}
@@ -364,7 +365,7 @@ wlcore_scan_sched_scan_ssid_list(struct wl1271 *wl,
 	struct cfg80211_ssid *ssids = req->ssids;
 	int ret = 0, type, i, j, n_match_ssids = 0;
 
-	wl1271_debug(DEBUG_CMD, "cmd sched scan ssid list");
+	wl1271_debug((DEBUG_CMD | DEBUG_SCAN), "cmd sched scan ssid list");
 
 	/* count the match sets that contain SSIDs */
 	for (i = 0; i < req->n_match_sets; i++)
@@ -442,8 +443,6 @@ wlcore_scan_sched_scan_ssid_list(struct wl1271 *wl,
 		}
 	}
 
-	wl1271_dump(DEBUG_SCAN, "SSID_LIST: ", cmd, sizeof(*cmd));
-
 	ret = wl1271_cmd_send(wl, CMD_CONNECTION_SCAN_SSID_CFG, cmd,
 			      sizeof(*cmd), 0);
 	if (ret < 0) {
-- 
cgit 


From bf9d5d28aabc6e420a0b6fb3a24b93046878e864 Mon Sep 17 00:00:00 2001
From: Victor Goldenshtein <victorg@ti.com>
Date: Tue, 17 Sep 2013 18:41:25 +0300
Subject: wlcore: fix unsafe dereference of the wlvif

wlvif could be passed as NULL from the wlcore_tx_work_locked()
to the wl1271_prepare_tx_frame() and to wl1271_skb_queue_head()
functions. This may lead to a Kernel panic, fix this by
validating that wlvif != NULL.

Signed-off-by: Victor Goldenshtein <victorg@ti.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wlcore/tx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ti/wlcore/tx.c b/drivers/net/wireless/ti/wlcore/tx.c
index 03249da9703a..87cd707affa2 100644
--- a/drivers/net/wireless/ti/wlcore/tx.c
+++ b/drivers/net/wireless/ti/wlcore/tx.c
@@ -401,7 +401,7 @@ static int wl1271_prepare_tx_frame(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 		is_wep = (cipher == WLAN_CIPHER_SUITE_WEP40) ||
 			 (cipher == WLAN_CIPHER_SUITE_WEP104);
 
-		if (WARN_ON(is_wep && wlvif->default_key != idx)) {
+		if (WARN_ON(is_wep && wlvif && wlvif->default_key != idx)) {
 			ret = wl1271_set_default_wep_key(wl, wlvif, idx);
 			if (ret < 0)
 				return ret;
-- 
cgit 


From 7ca38a98ca4b1c5e0d243a712d9eb84afdfe2747 Mon Sep 17 00:00:00 2001
From: Eliad Peller <eliad@wizery.com>
Date: Tue, 17 Sep 2013 18:41:26 +0300
Subject: wlcore: remove unsupported channels

The fw doesn't support channels 7,9,11 in 5ghz band,
so don't advertise supporting them.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wlcore/main.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 131e60f3e316..d8d006fe535e 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -5414,10 +5414,7 @@ static struct ieee80211_rate wl1271_rates_5ghz[] = {
 
 /* 5 GHz band channels for WL1273 */
 static struct ieee80211_channel wl1271_channels_5ghz[] = {
-	{ .hw_value = 7, .center_freq = 5035, .max_power = WLCORE_MAX_TXPWR },
 	{ .hw_value = 8, .center_freq = 5040, .max_power = WLCORE_MAX_TXPWR },
-	{ .hw_value = 9, .center_freq = 5045, .max_power = WLCORE_MAX_TXPWR },
-	{ .hw_value = 11, .center_freq = 5055, .max_power = WLCORE_MAX_TXPWR },
 	{ .hw_value = 12, .center_freq = 5060, .max_power = WLCORE_MAX_TXPWR },
 	{ .hw_value = 16, .center_freq = 5080, .max_power = WLCORE_MAX_TXPWR },
 	{ .hw_value = 34, .center_freq = 5170, .max_power = WLCORE_MAX_TXPWR },
-- 
cgit 


From 49540d1b8155b5ded98e6b77c5c92b11854c3de7 Mon Sep 17 00:00:00 2001
From: Eliad Peller <eliad@wizery.com>
Date: Tue, 17 Sep 2013 18:41:27 +0300
Subject: wlcore: clarify and fix regulatory domain bit translation

Channels 52-64 were mapped incorrectly.

Refactor and document wlcore_get_reg_conf_ch_idx() in
order to make it clear what's going on there.

While on it, fix the return value check to consider
0 as a valid return value as well (indicates channel 1).

Reported-by: Yaniv Machani <yanivma@ti.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Ido Reis <idor@ti.com>
Signed-off-by: Victor Goldenshtein <victorg@ti.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wlcore/cmd.c | 52 +++++++++++++++++++++---------------
 1 file changed, 31 insertions(+), 21 deletions(-)

diff --git a/drivers/net/wireless/ti/wlcore/cmd.c b/drivers/net/wireless/ti/wlcore/cmd.c
index e3ae425381e5..9e5416f8764d 100644
--- a/drivers/net/wireless/ti/wlcore/cmd.c
+++ b/drivers/net/wireless/ti/wlcore/cmd.c
@@ -1607,33 +1607,43 @@ out:
 
 static int wlcore_get_reg_conf_ch_idx(enum ieee80211_band band, u16 ch)
 {
-	int idx = -1;
-
+	/*
+	 * map the given band/channel to the respective predefined
+	 * bit expected by the fw
+	 */
 	switch (band) {
-	case IEEE80211_BAND_5GHZ:
-		if (ch >= 8 && ch <= 16)
-			idx = ((ch-8)/4 + 18);
-		else if (ch >= 34 && ch <= 64)
-			idx = ((ch-34)/2 + 3 + 18);
-		else if (ch >= 100 && ch <= 140)
-			idx = ((ch-100)/4 + 15 + 18);
-		else if (ch >= 149 && ch <= 165)
-			idx = ((ch-149)/4 + 26 + 18);
-		else
-			idx = -1;
-		break;
 	case IEEE80211_BAND_2GHZ:
+		/* channels 1..14 are mapped to 0..13 */
 		if (ch >= 1 && ch <= 14)
-			idx = ch - 1;
-		else
-			idx = -1;
+			return ch - 1;
+		break;
+	case IEEE80211_BAND_5GHZ:
+		switch (ch) {
+		case 8 ... 16:
+			/* channels 8,12,16 are mapped to 18,19,20 */
+			return 18 + (ch-8)/4;
+		case 34 ... 48:
+			/* channels 34,36..48 are mapped to 21..28 */
+			return 21 + (ch-34)/2;
+		case 52 ... 64:
+			/* channels 52,56..64 are mapped to 29..32 */
+			return 29 + (ch-52)/4;
+		case 100 ... 140:
+			/* channels 100,104..140 are mapped to 33..43 */
+			return 33 + (ch-100)/4;
+		case 149 ... 165:
+			/* channels 149,153..165 are mapped to 44..48 */
+			return 44 + (ch-149)/4;
+		default:
+			break;
+		}
 		break;
 	default:
-		wl1271_error("get reg conf ch idx - unknown band: %d",
-			     (int)band);
+		break;
 	}
 
-	return idx;
+	wl1271_error("%s: unknown band/channel: %d/%d", __func__, band, ch);
+	return -1;
 }
 
 void wlcore_set_pending_regdomain_ch(struct wl1271 *wl, u16 channel,
@@ -1646,7 +1656,7 @@ void wlcore_set_pending_regdomain_ch(struct wl1271 *wl, u16 channel,
 
 	ch_bit_idx = wlcore_get_reg_conf_ch_idx(band, channel);
 
-	if (ch_bit_idx > 0 && ch_bit_idx <= WL1271_MAX_CHANNELS)
+	if (ch_bit_idx >= 0 && ch_bit_idx <= WL1271_MAX_CHANNELS)
 		set_bit(ch_bit_idx, (long *)wl->reg_ch_conf_pending);
 }
 
-- 
cgit 


From ef47d3287ca693067e3891aad9c8e62671579592 Mon Sep 17 00:00:00 2001
From: Victor Goldenshtein <victorg@ti.com>
Date: Tue, 17 Sep 2013 18:41:28 +0300
Subject: wl18xx: fix boot process in high temperature environment

In addition to existing WCS PLL configuration add and enable
also the coex PLL during init phase. This fixes boot failures
due to silicon latchup in high temperature environment (>85c).

Signed-off-by: Victor Goldenshtein <victorg@ti.com>
Signed-off-by: Nadim Zubidat <nadimz@ti.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wl18xx/main.c | 53 +++++++++++++++++++++++++++++++++++
 drivers/net/wireless/ti/wl18xx/reg.h  | 13 +++++++++
 2 files changed, 66 insertions(+)

diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
index 7aa0eb848c5a..b47eb620f2f1 100644
--- a/drivers/net/wireless/ti/wl18xx/main.c
+++ b/drivers/net/wireless/ti/wl18xx/main.c
@@ -623,6 +623,18 @@ static const int wl18xx_rtable[REG_TABLE_LEN] = {
 	[REG_RAW_FW_STATUS_ADDR]	= WL18XX_FW_STATUS_ADDR,
 };
 
+static const struct wl18xx_clk_cfg wl18xx_clk_table_coex[NUM_CLOCK_CONFIGS] = {
+	[CLOCK_CONFIG_16_2_M]	= { 8,  121, 0, 0, false },
+	[CLOCK_CONFIG_16_368_M]	= { 8,  120, 0, 0, false },
+	[CLOCK_CONFIG_16_8_M]	= { 8,  117, 0, 0, false },
+	[CLOCK_CONFIG_19_2_M]	= { 10, 128, 0, 0, false },
+	[CLOCK_CONFIG_26_M]	= { 11, 104, 0, 0, false },
+	[CLOCK_CONFIG_32_736_M]	= { 8,  120, 0, 0, false },
+	[CLOCK_CONFIG_33_6_M]	= { 8,  117, 0, 0, false },
+	[CLOCK_CONFIG_38_468_M]	= { 10, 128, 0, 0, false },
+	[CLOCK_CONFIG_52_M]	= { 11, 104, 0, 0, false },
+};
+
 static const struct wl18xx_clk_cfg wl18xx_clk_table[NUM_CLOCK_CONFIGS] = {
 	[CLOCK_CONFIG_16_2_M]	= { 7,  104,  801, 4,  true },
 	[CLOCK_CONFIG_16_368_M]	= { 9,  132, 3751, 4,  true },
@@ -704,6 +716,23 @@ static int wl18xx_set_clk(struct wl1271 *wl)
 		     wl18xx_clk_table[clk_freq].p, wl18xx_clk_table[clk_freq].q,
 		     wl18xx_clk_table[clk_freq].swallow ? "swallow" : "spit");
 
+	/* coex PLL configuration */
+	ret = wl18xx_top_reg_write(wl, PLLSH_COEX_PLL_N,
+				   wl18xx_clk_table_coex[clk_freq].n);
+	if (ret < 0)
+		goto out;
+
+	ret = wl18xx_top_reg_write(wl, PLLSH_COEX_PLL_M,
+				   wl18xx_clk_table_coex[clk_freq].m);
+	if (ret < 0)
+		goto out;
+
+	/* bypass the swallowing logic */
+	ret = wl18xx_top_reg_write(wl, PLLSH_COEX_PLL_SWALLOW_EN,
+				   PLLSH_COEX_PLL_SWALLOW_EN_VAL1);
+	if (ret < 0)
+		goto out;
+
 	ret = wl18xx_top_reg_write(wl, PLLSH_WCS_PLL_N,
 				   wl18xx_clk_table[clk_freq].n);
 	if (ret < 0)
@@ -745,6 +774,30 @@ static int wl18xx_set_clk(struct wl1271 *wl)
 					   PLLSH_WCS_PLL_SWALLOW_EN_VAL2);
 	}
 
+	/* choose WCS PLL */
+	ret = wl18xx_top_reg_write(wl, PLLSH_WL_PLL_SEL,
+				   PLLSH_WL_PLL_SEL_WCS_PLL);
+	if (ret < 0)
+		goto out;
+
+	/* enable both PLLs */
+	ret = wl18xx_top_reg_write(wl, PLLSH_WL_PLL_EN, PLLSH_WL_PLL_EN_VAL1);
+	if (ret < 0)
+		goto out;
+
+	udelay(1000);
+
+	/* disable coex PLL */
+	ret = wl18xx_top_reg_write(wl, PLLSH_WL_PLL_EN, PLLSH_WL_PLL_EN_VAL2);
+	if (ret < 0)
+		goto out;
+
+	/* reset the swallowing logic */
+	ret = wl18xx_top_reg_write(wl, PLLSH_COEX_PLL_SWALLOW_EN,
+				   PLLSH_COEX_PLL_SWALLOW_EN_VAL2);
+	if (ret < 0)
+		goto out;
+
 out:
 	return ret;
 }
diff --git a/drivers/net/wireless/ti/wl18xx/reg.h b/drivers/net/wireless/ti/wl18xx/reg.h
index 05dd8bad2746..88de3f2049e3 100644
--- a/drivers/net/wireless/ti/wl18xx/reg.h
+++ b/drivers/net/wireless/ti/wl18xx/reg.h
@@ -114,6 +114,11 @@
 #define PLATFORM_DETECTION		0xA0E3E0
 #define OCS_EN				0xA02080
 #define PRIMARY_CLK_DETECT		0xA020A6
+#define PLLSH_COEX_PLL_N		0xA02384
+#define PLLSH_COEX_PLL_M		0xA02382
+#define PLLSH_COEX_PLL_SWALLOW_EN	0xA0238E
+#define PLLSH_WL_PLL_SEL		0xA02398
+
 #define PLLSH_WCS_PLL_N			0xA02362
 #define PLLSH_WCS_PLL_M			0xA02360
 #define PLLSH_WCS_PLL_Q_FACTOR_CFG_1	0xA02364
@@ -128,9 +133,17 @@
 #define PLLSH_WCS_PLL_P_FACTOR_CFG_1_MASK	0xFFFF
 #define PLLSH_WCS_PLL_P_FACTOR_CFG_2_MASK	0x000F
 
+#define PLLSH_WL_PLL_EN_VAL1		0x7
+#define PLLSH_WL_PLL_EN_VAL2		0x2
+#define PLLSH_COEX_PLL_SWALLOW_EN_VAL1	0x2
+#define PLLSH_COEX_PLL_SWALLOW_EN_VAL2	0x11
+
 #define PLLSH_WCS_PLL_SWALLOW_EN_VAL1	0x1
 #define PLLSH_WCS_PLL_SWALLOW_EN_VAL2	0x12
 
+#define PLLSH_WL_PLL_SEL_WCS_PLL	0x0
+#define PLLSH_WL_PLL_SEL_COEX_PLL	0x1
+
 #define WL18XX_REG_FUSE_DATA_1_3	0xA0260C
 #define WL18XX_PG_VER_MASK		0x70
 #define WL18XX_PG_VER_OFFSET		4
-- 
cgit 


From 1f8a1890ed2be9c1e5cfc243426089d0531f5bde Mon Sep 17 00:00:00 2001
From: Victor Goldenshtein <victorg@ti.com>
Date: Tue, 17 Sep 2013 18:41:29 +0300
Subject: wl18xx: print new RDL versions during boot

Extract and print info for the new RDL 5, 6, 7 and 8.
Replace const struct with function which translates
the RDL number to string.

Signed-off-by: Victor Goldenshtein <victorg@ti.com>
Signed-off-by: Barak Bercovitz <barak@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wl18xx/main.c | 42 ++++++++++++++++++++++++++++++-----
 drivers/net/wireless/ti/wl18xx/reg.h  | 20 ++++++++---------
 2 files changed, 46 insertions(+), 16 deletions(-)

diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
index b47eb620f2f1..d0daca1d23bc 100644
--- a/drivers/net/wireless/ti/wl18xx/main.c
+++ b/drivers/net/wireless/ti/wl18xx/main.c
@@ -1228,16 +1228,48 @@ static u32 wl18xx_ap_get_mimo_wide_rate_mask(struct wl1271 *wl,
 	}
 }
 
+static const char *wl18xx_rdl_name(enum wl18xx_rdl_num rdl_num)
+{
+	switch (rdl_num) {
+	case RDL_1_HP:
+		return "183xH";
+	case RDL_2_SP:
+		return "183x or 180x";
+	case RDL_3_HP:
+		return "187xH";
+	case RDL_4_SP:
+		return "187x";
+	case RDL_5_SP:
+		return "RDL11 - Not Supported";
+	case RDL_6_SP:
+		return "180xD";
+	case RDL_7_SP:
+		return "RDL13 - Not Supported (1893Q)";
+	case RDL_8_SP:
+		return "18xxQ";
+	case RDL_NONE:
+		return "UNTRIMMED";
+	default:
+		return "UNKNOWN";
+	}
+}
+
 static int wl18xx_get_pg_ver(struct wl1271 *wl, s8 *ver)
 {
 	u32 fuse;
-	s8 rom = 0, metal = 0, pg_ver = 0, rdl_ver = 0;
+	s8 rom = 0, metal = 0, pg_ver = 0, rdl_ver = 0, package_type = 0;
 	int ret;
 
 	ret = wlcore_set_partition(wl, &wl->ptable[PART_TOP_PRCM_ELP_SOC]);
 	if (ret < 0)
 		goto out;
 
+	ret = wlcore_read32(wl, WL18XX_REG_FUSE_DATA_2_3, &fuse);
+	if (ret < 0)
+		goto out;
+
+	package_type = (fuse >> WL18XX_PACKAGE_TYPE_OFFSET) & 1;
+
 	ret = wlcore_read32(wl, WL18XX_REG_FUSE_DATA_1_3, &fuse);
 	if (ret < 0)
 		goto out;
@@ -1245,7 +1277,7 @@ static int wl18xx_get_pg_ver(struct wl1271 *wl, s8 *ver)
 	pg_ver = (fuse & WL18XX_PG_VER_MASK) >> WL18XX_PG_VER_OFFSET;
 	rom = (fuse & WL18XX_ROM_VER_MASK) >> WL18XX_ROM_VER_OFFSET;
 
-	if (rom <= 0xE)
+	if ((rom <= 0xE) && (package_type == WL18XX_PACKAGE_TYPE_WSP))
 		metal = (fuse & WL18XX_METAL_VER_MASK) >>
 			WL18XX_METAL_VER_OFFSET;
 	else
@@ -1257,11 +1289,9 @@ static int wl18xx_get_pg_ver(struct wl1271 *wl, s8 *ver)
 		goto out;
 
 	rdl_ver = (fuse & WL18XX_RDL_VER_MASK) >> WL18XX_RDL_VER_OFFSET;
-	if (rdl_ver > RDL_MAX)
-		rdl_ver = RDL_NONE;
 
-	wl1271_info("wl18xx HW: RDL %d, %s, PG %x.%x (ROM %x)",
-		    rdl_ver, rdl_names[rdl_ver], pg_ver, metal, rom);
+	wl1271_info("wl18xx HW: %s, PG %d.%d (ROM 0x%x)",
+		    wl18xx_rdl_name(rdl_ver), pg_ver, metal, rom);
 
 	if (ver)
 		*ver = pg_ver;
diff --git a/drivers/net/wireless/ti/wl18xx/reg.h b/drivers/net/wireless/ti/wl18xx/reg.h
index 88de3f2049e3..a433a75f3cd7 100644
--- a/drivers/net/wireless/ti/wl18xx/reg.h
+++ b/drivers/net/wireless/ti/wl18xx/reg.h
@@ -147,13 +147,16 @@
 #define WL18XX_REG_FUSE_DATA_1_3	0xA0260C
 #define WL18XX_PG_VER_MASK		0x70
 #define WL18XX_PG_VER_OFFSET		4
-#define WL18XX_ROM_VER_MASK		0x3
-#define WL18XX_ROM_VER_OFFSET		0
+#define WL18XX_ROM_VER_MASK		0x3e00
+#define WL18XX_ROM_VER_OFFSET		9
 #define WL18XX_METAL_VER_MASK		0xC
 #define WL18XX_METAL_VER_OFFSET		2
 #define WL18XX_NEW_METAL_VER_MASK	0x180
 #define WL18XX_NEW_METAL_VER_OFFSET	7
 
+#define WL18XX_PACKAGE_TYPE_OFFSET	13
+#define WL18XX_PACKAGE_TYPE_WSP		0
+
 #define WL18XX_REG_FUSE_DATA_2_3	0xA02614
 #define WL18XX_RDL_VER_MASK		0x1f00
 #define WL18XX_RDL_VER_OFFSET		8
@@ -214,24 +217,21 @@ enum {
 	NUM_BOARD_TYPES,
 };
 
-enum {
+enum wl18xx_rdl_num {
 	RDL_NONE	= 0,
 	RDL_1_HP	= 1,
 	RDL_2_SP	= 2,
 	RDL_3_HP	= 3,
 	RDL_4_SP	= 4,
+	RDL_5_SP	= 0x11,
+	RDL_6_SP	= 0x12,
+	RDL_7_SP	= 0x13,
+	RDL_8_SP	= 0x14,
 
 	_RDL_LAST,
 	RDL_MAX = _RDL_LAST - 1,
 };
 
-static const char * const rdl_names[] = {
-	[RDL_NONE]	= "",
-	[RDL_1_HP]	= "1853 SISO",
-	[RDL_2_SP]	= "1857 MIMO",
-	[RDL_3_HP]	= "1893 SISO",
-	[RDL_4_SP]	= "1897 MIMO",
-};
 
 /* FPGA_SPARE_1 register - used to change the PHY ATPG clock at boot time */
 #define WL18XX_PHY_FPGA_SPARE_1		0x8093CA40
-- 
cgit 


From f2cede49ae7b9f51a6fe97ada16c27e4d03d05a3 Mon Sep 17 00:00:00 2001
From: Arik Nemtsov <arik@wizery.com>
Date: Tue, 17 Sep 2013 18:41:30 +0300
Subject: wlcore: always register dummy hardirq

This keeps the kernel happy when using edge-irqs and requesting a
threaded irq.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wlcore/main.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index d8d006fe535e..bbdd10632373 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -5994,6 +5994,11 @@ static const struct wiphy_wowlan_support wlcore_wowlan_support = {
 };
 #endif
 
+static irqreturn_t wlcore_hardirq(int irq, void *cookie)
+{
+	return IRQ_WAKE_THREAD;
+}
+
 static void wlcore_nvs_cb(const struct firmware *fw, void *context)
 {
 	struct wl1271 *wl = context;
@@ -6002,6 +6007,7 @@ static void wlcore_nvs_cb(const struct firmware *fw, void *context)
 	struct wl12xx_platform_data *pdata = pdev_data->pdata;
 	unsigned long irqflags;
 	int ret;
+	irq_handler_t hardirq_fn = NULL;
 
 	if (fw) {
 		wl->nvs = kmemdup(fw->data, fw->size, GFP_KERNEL);
@@ -6030,12 +6036,14 @@ static void wlcore_nvs_cb(const struct firmware *fw, void *context)
 	wl->platform_quirks = pdata->platform_quirks;
 	wl->if_ops = pdev_data->if_ops;
 
-	if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ)
+	if (wl->platform_quirks & WL12XX_PLATFORM_QUIRK_EDGE_IRQ) {
 		irqflags = IRQF_TRIGGER_RISING;
-	else
+		hardirq_fn = wlcore_hardirq;
+	} else {
 		irqflags = IRQF_TRIGGER_HIGH | IRQF_ONESHOT;
+	}
 
-	ret = request_threaded_irq(wl->irq, NULL, wlcore_irq,
+	ret = request_threaded_irq(wl->irq, hardirq_fn, wlcore_irq,
 				   irqflags, pdev->name, wl);
 	if (ret < 0) {
 		wl1271_error("request_irq() failed: %d", ret);
-- 
cgit 


From 27047a603645d0885bcd72d7a0b6cce6e3c94ca7 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:03 +0530
Subject: cpufreq: Add new helper cpufreq_table_validate_and_show()

Almost every cpufreq driver is required to validate its frequency table with:
cpufreq_frequency_table_cpuinfo() and then expose it to cpufreq core with:
cpufreq_frequency_table_get_attr().

This patch creates another helper routine cpufreq_table_validate_and_show() that
will do both these steps in a single call and will return 0 for success, error
otherwise.

This also fixes potential bugs in cpufreq drivers where people have called
cpufreq_frequency_table_get_attr() before calling
cpufreq_frequency_table_cpuinfo(), as the later may fail.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/freq_table.c | 12 ++++++++++++
 include/linux/cpufreq.h      |  2 ++
 2 files changed, 14 insertions(+)

diff --git a/drivers/cpufreq/freq_table.c b/drivers/cpufreq/freq_table.c
index f111454a7aea..11f6fa92a58d 100644
--- a/drivers/cpufreq/freq_table.c
+++ b/drivers/cpufreq/freq_table.c
@@ -219,6 +219,18 @@ void cpufreq_frequency_table_put_attr(unsigned int cpu)
 }
 EXPORT_SYMBOL_GPL(cpufreq_frequency_table_put_attr);
 
+int cpufreq_table_validate_and_show(struct cpufreq_policy *policy,
+				      struct cpufreq_frequency_table *table)
+{
+	int ret = cpufreq_frequency_table_cpuinfo(policy, table);
+
+	if (!ret)
+		cpufreq_frequency_table_get_attr(table, policy->cpu);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(cpufreq_table_validate_and_show);
+
 void cpufreq_frequency_table_update_policy_cpu(struct cpufreq_policy *policy)
 {
 	pr_debug("Updating show_table for new_cpu %u from last_cpu %u\n",
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index fcabc42d66ab..6b199ed7aa58 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -410,5 +410,7 @@ extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs;
 void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table,
 				      unsigned int cpu);
 void cpufreq_frequency_table_put_attr(unsigned int cpu);
+int cpufreq_table_validate_and_show(struct cpufreq_policy *policy,
+				      struct cpufreq_frequency_table *table);
 
 #endif /* _LINUX_CPUFREQ_H */
-- 
cgit 


From 6a77a1e6429c96be0dab06660b137847e2802806 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:04 +0530
Subject: cpufreq: pxa: call cpufreq_frequency_table_get_attr()

This exposes frequency table of driver to cpufreq core and is required for core
to guess what the index for a target frequency is, when it calls
cpufreq_frequency_table_target(). And so this driver needs to expose it.

Cc: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/pxa2xx-cpufreq.c | 13 ++++++++++++-
 drivers/cpufreq/pxa3xx-cpufreq.c | 15 +++++++++++++--
 2 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/drivers/cpufreq/pxa2xx-cpufreq.c b/drivers/cpufreq/pxa2xx-cpufreq.c
index 8749eaf18793..b004cf1d07af 100644
--- a/drivers/cpufreq/pxa2xx-cpufreq.c
+++ b/drivers/cpufreq/pxa2xx-cpufreq.c
@@ -453,20 +453,31 @@ static int pxa_cpufreq_init(struct cpufreq_policy *policy)
 		find_freq_tables(&pxa255_freq_table, &pxa255_freqs);
 		pr_info("PXA255 cpufreq using %s frequency table\n",
 			pxa255_turbo_table ? "turbo" : "run");
+
 		cpufreq_frequency_table_cpuinfo(policy, pxa255_freq_table);
+		cpufreq_frequency_table_get_attr(pxa255_freq_table, policy->cpu);
 	}
-	else if (cpu_is_pxa27x())
+	else if (cpu_is_pxa27x()) {
 		cpufreq_frequency_table_cpuinfo(policy, pxa27x_freq_table);
+		cpufreq_frequency_table_get_attr(pxa27x_freq_table, policy->cpu);
+	}
 
 	printk(KERN_INFO "PXA CPU frequency change support initialized\n");
 
 	return 0;
 }
 
+static int pxa_cpufreq_exit(struct cpufreq_policy *policy)
+{
+	cpufreq_frequency_table_put_attr(policy->cpu);
+	return 0;
+}
+
 static struct cpufreq_driver pxa_cpufreq_driver = {
 	.verify	= pxa_verify_policy,
 	.target	= pxa_set_target,
 	.init	= pxa_cpufreq_init,
+	.exit	= pxa_cpufreq_exit,
 	.get	= pxa_cpufreq_get,
 	.name	= "PXA2xx",
 };
diff --git a/drivers/cpufreq/pxa3xx-cpufreq.c b/drivers/cpufreq/pxa3xx-cpufreq.c
index d26306fb00d2..cebbed19765e 100644
--- a/drivers/cpufreq/pxa3xx-cpufreq.c
+++ b/drivers/cpufreq/pxa3xx-cpufreq.c
@@ -91,7 +91,7 @@ static int setup_freqs_table(struct cpufreq_policy *policy,
 			     struct pxa3xx_freq_info *freqs, int num)
 {
 	struct cpufreq_frequency_table *table;
-	int i;
+	int i, ret;
 
 	table = kzalloc((num + 1) * sizeof(*table), GFP_KERNEL);
 	if (table == NULL)
@@ -108,7 +108,11 @@ static int setup_freqs_table(struct cpufreq_policy *policy,
 	pxa3xx_freqs_num = num;
 	pxa3xx_freqs_table = table;
 
-	return cpufreq_frequency_table_cpuinfo(policy, table);
+	ret = cpufreq_frequency_table_cpuinfo(policy, table);
+	if (!ret)
+		cpufreq_frequency_table_get_attr(table, policy->cpu);
+
+	return ret;
 }
 
 static void __update_core_freq(struct pxa3xx_freq_info *info)
@@ -229,10 +233,17 @@ static int pxa3xx_cpufreq_init(struct cpufreq_policy *policy)
 	return 0;
 }
 
+static int pxa3xx_cpufreq_exit(struct cpufreq_policy *policy)
+{
+	cpufreq_frequency_table_put_attr(policy->cpu);
+	return 0;
+}
+
 static struct cpufreq_driver pxa3xx_cpufreq_driver = {
 	.verify		= pxa3xx_cpufreq_verify,
 	.target		= pxa3xx_cpufreq_set,
 	.init		= pxa3xx_cpufreq_init,
+	.exit		= pxa3xx_cpufreq_exit,
 	.get		= pxa3xx_cpufreq_get,
 	.name		= "pxa3xx-cpufreq",
 };
-- 
cgit 


From 5c40e052bb04381302c748497076b5b4526ed6cb Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:05 +0530
Subject: cpufreq: s3cx4xx: call cpufreq_frequency_table_get_attr()

This exposes frequency table of driver to cpufreq core and is required for core
to guess what the index for a target frequency is, when it calls
cpufreq_frequency_table_target(). And so this driver needs to expose it.

Cc: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/s3c24xx-cpufreq.c | 4 +++-
 drivers/cpufreq/s3c64xx-cpufreq.c | 3 +++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/cpufreq/s3c24xx-cpufreq.c b/drivers/cpufreq/s3c24xx-cpufreq.c
index b0f343fcb7ee..f2c872c7bbb2 100644
--- a/drivers/cpufreq/s3c24xx-cpufreq.c
+++ b/drivers/cpufreq/s3c24xx-cpufreq.c
@@ -386,8 +386,10 @@ static int s3c_cpufreq_init(struct cpufreq_policy *policy)
 	/* feed the latency information from the cpu driver */
 	policy->cpuinfo.transition_latency = cpu_cur.info->latency;
 
-	if (ftab)
+	if (ftab) {
 		cpufreq_frequency_table_cpuinfo(policy, ftab);
+		cpufreq_frequency_table_get_attr(ftab, policy->cpu);
+	}
 
 	return 0;
 }
diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c
index 8a72b0c555f8..90240436e3b8 100644
--- a/drivers/cpufreq/s3c64xx-cpufreq.c
+++ b/drivers/cpufreq/s3c64xx-cpufreq.c
@@ -257,6 +257,9 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy)
 		       ret);
 		regulator_put(vddarm);
 		clk_put(armclk);
+	} else {
+		cpufreq_frequency_table_get_attr(s3c64xx_freq_table,
+				policy->cpu);
 	}
 
 	return ret;
-- 
cgit 


From 18f130ed75ab98573694fa6d8542c7891ccc9447 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:06 +0530
Subject: cpufreq: sparc: call cpufreq_frequency_table_get_attr()

This exposes frequency table of driver to cpufreq core and is required for core
to guess what the index for a target frequency is, when it calls
cpufreq_frequency_table_target(). And so this driver needs to expose it.

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/sparc-us2e-cpufreq.c | 10 ++++++++--
 drivers/cpufreq/sparc-us3-cpufreq.c  | 11 +++++++++--
 2 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/drivers/cpufreq/sparc-us2e-cpufreq.c b/drivers/cpufreq/sparc-us2e-cpufreq.c
index cf5bc2ca16fa..63b3eae5ffdc 100644
--- a/drivers/cpufreq/sparc-us2e-cpufreq.c
+++ b/drivers/cpufreq/sparc-us2e-cpufreq.c
@@ -307,6 +307,7 @@ static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy)
 	unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000;
 	struct cpufreq_frequency_table *table =
 		&us2e_freq_table[cpu].table[0];
+	int ret;
 
 	table[0].driver_data = 0;
 	table[0].frequency = clock_tick / 1;
@@ -324,13 +325,18 @@ static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency = 0;
 	policy->cur = clock_tick;
 
-	return cpufreq_frequency_table_cpuinfo(policy, table);
+	ret = cpufreq_frequency_table_cpuinfo(policy, table);
+	if (!ret)
+		cpufreq_frequency_table_get_attr(table, policy->cpu);
+	return ret;
 }
 
 static int us2e_freq_cpu_exit(struct cpufreq_policy *policy)
 {
-	if (cpufreq_us2e_driver)
+	if (cpufreq_us2e_driver) {
+		cpufreq_frequency_table_put_attr(policy->cpu);
 		us2e_set_cpu_divider_index(policy, 0);
+	}
 
 	return 0;
 }
diff --git a/drivers/cpufreq/sparc-us3-cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c
index ac76b489979d..985bc56b0068 100644
--- a/drivers/cpufreq/sparc-us3-cpufreq.c
+++ b/drivers/cpufreq/sparc-us3-cpufreq.c
@@ -168,6 +168,7 @@ static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
 	unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000;
 	struct cpufreq_frequency_table *table =
 		&us3_freq_table[cpu].table[0];
+	int ret;
 
 	table[0].driver_data = 0;
 	table[0].frequency = clock_tick / 1;
@@ -181,13 +182,19 @@ static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency = 0;
 	policy->cur = clock_tick;
 
-	return cpufreq_frequency_table_cpuinfo(policy, table);
+	ret = cpufreq_frequency_table_cpuinfo(policy, table);
+	if (!ret)
+		cpufreq_frequency_table_get_attr(table, policy->cpu);
+
+	return ret;
 }
 
 static int us3_freq_cpu_exit(struct cpufreq_policy *policy)
 {
-	if (cpufreq_us3_driver)
+	if (cpufreq_us3_driver) {
+		cpufreq_frequency_table_put_attr(policy->cpu);
 		us3_set_cpu_divider_index(policy, 0);
+	}
 
 	return 0;
 }
-- 
cgit 


From 776b57be6581528125a076cbae5c0b75c50909f5 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:07 +0530
Subject: cpufreq: acpi-cpufreq: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/acpi-cpufreq.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index d2c3253e015e..d9932111a681 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -837,7 +837,7 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	data->freq_table[valid_states].frequency = CPUFREQ_TABLE_END;
 	perf->state = 0;
 
-	result = cpufreq_frequency_table_cpuinfo(policy, data->freq_table);
+	result = cpufreq_table_validate_and_show(policy, data->freq_table);
 	if (result)
 		goto err_freqfree;
 
@@ -868,8 +868,6 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
 			(u32) perf->states[i].power,
 			(u32) perf->states[i].transition_latency);
 
-	cpufreq_frequency_table_get_attr(data->freq_table, policy->cpu);
-
 	/*
 	 * the first call to ->target() should result in us actually
 	 * writing something to the appropriate registers.
-- 
cgit 


From 39b10ebe5d30ef46ddea1daa89ca55bd2c817d7b Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:08 +0530
Subject: cpufreq: arm_big_little: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/arm_big_little.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index 3549f0784af1..507027388ae3 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -165,7 +165,7 @@ static int bL_cpufreq_init(struct cpufreq_policy *policy)
 	if (ret)
 		return ret;
 
-	ret = cpufreq_frequency_table_cpuinfo(policy, freq_table[cur_cluster]);
+	ret = cpufreq_table_validate_and_show(policy, freq_table[cur_cluster]);
 	if (ret) {
 		dev_err(cpu_dev, "CPU %d, cluster: %d invalid freq table\n",
 				policy->cpu, cur_cluster);
@@ -173,8 +173,6 @@ static int bL_cpufreq_init(struct cpufreq_policy *policy)
 		return ret;
 	}
 
-	cpufreq_frequency_table_get_attr(freq_table[cur_cluster], policy->cpu);
-
 	if (arm_bL_ops->get_transition_latency)
 		policy->cpuinfo.transition_latency =
 			arm_bL_ops->get_transition_latency(cpu_dev);
-- 
cgit 


From e2889e2cb8986d6e2d9f8f078249f6dfed5bf605 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:09 +0530
Subject: cpufreq: blackfin: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Cc: Steven Miao <realmz6@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/blackfin-cpufreq.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/cpufreq/blackfin-cpufreq.c b/drivers/cpufreq/blackfin-cpufreq.c
index ef05978a7237..54c0a0c20752 100644
--- a/drivers/cpufreq/blackfin-cpufreq.c
+++ b/drivers/cpufreq/blackfin-cpufreq.c
@@ -210,8 +210,7 @@ static int __bfin_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency = 50000; /* 50us assumed */
 
 	policy->cur = cclk;
-	cpufreq_frequency_table_get_attr(bfin_freq_table, policy->cpu);
-	return cpufreq_frequency_table_cpuinfo(policy, bfin_freq_table);
+	return cpufreq_table_validate_and_show(policy, bfin_freq_table);
 }
 
 static struct freq_attr *bfin_freq_attr[] = {
-- 
cgit 


From 7a90684956135b3d59fab75166e6ce21e39e532c Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:10 +0530
Subject: cpufreq: cpufreq-cpu0: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq-cpu0.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
index 78c49d8e0f4a..fd031ec33fcc 100644
--- a/drivers/cpufreq/cpufreq-cpu0.c
+++ b/drivers/cpufreq/cpufreq-cpu0.c
@@ -129,7 +129,7 @@ static int cpu0_cpufreq_init(struct cpufreq_policy *policy)
 {
 	int ret;
 
-	ret = cpufreq_frequency_table_cpuinfo(policy, freq_table);
+	ret = cpufreq_table_validate_and_show(policy, freq_table);
 	if (ret) {
 		pr_err("invalid frequency table: %d\n", ret);
 		return ret;
@@ -145,8 +145,6 @@ static int cpu0_cpufreq_init(struct cpufreq_policy *policy)
 	 */
 	cpumask_setall(policy->cpus);
 
-	cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
-
 	return 0;
 }
 
-- 
cgit 


From ae24b5cda83cd496c72acd9fcd97a5748aaeec22 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:11 +0530
Subject: cpufreq: cris: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cris-artpec3-cpufreq.c | 10 +---------
 drivers/cpufreq/cris-etraxfs-cpufreq.c | 10 +---------
 2 files changed, 2 insertions(+), 18 deletions(-)

diff --git a/drivers/cpufreq/cris-artpec3-cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c
index cb8276dd19ca..444fd96ad3a5 100644
--- a/drivers/cpufreq/cris-artpec3-cpufreq.c
+++ b/drivers/cpufreq/cris-artpec3-cpufreq.c
@@ -76,19 +76,11 @@ static int cris_freq_target(struct cpufreq_policy *policy,
 
 static int cris_freq_cpu_init(struct cpufreq_policy *policy)
 {
-	int result;
-
 	/* cpuinfo and default policy values */
 	policy->cpuinfo.transition_latency = 1000000; /* 1ms */
 	policy->cur = cris_freq_get_cpu_frequency(0);
 
-	result = cpufreq_frequency_table_cpuinfo(policy, cris_freq_table);
-	if (result)
-		return (result);
-
-	cpufreq_frequency_table_get_attr(cris_freq_table, policy->cpu);
-
-	return 0;
+	return cpufreq_table_validate_and_show(policy, cris_freq_table);
 }
 
 
diff --git a/drivers/cpufreq/cris-etraxfs-cpufreq.c b/drivers/cpufreq/cris-etraxfs-cpufreq.c
index 72328f77dc53..428395e39a6d 100644
--- a/drivers/cpufreq/cris-etraxfs-cpufreq.c
+++ b/drivers/cpufreq/cris-etraxfs-cpufreq.c
@@ -75,19 +75,11 @@ static int cris_freq_target(struct cpufreq_policy *policy,
 
 static int cris_freq_cpu_init(struct cpufreq_policy *policy)
 {
-	int result;
-
 	/* cpuinfo and default policy values */
 	policy->cpuinfo.transition_latency = 1000000;	/* 1ms */
 	policy->cur = cris_freq_get_cpu_frequency(0);
 
-	result = cpufreq_frequency_table_cpuinfo(policy, cris_freq_table);
-	if (result)
-		return (result);
-
-	cpufreq_frequency_table_get_attr(cris_freq_table, policy->cpu);
-
-	return 0;
+	return cpufreq_table_validate_and_show(policy, cris_freq_table);
 }
 
 static int cris_freq_cpu_exit(struct cpufreq_policy *policy)
-- 
cgit 


From e873c5b217634976778bdbf0b88cfded427f545c Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:12 +0530
Subject: cpufreq: davinci: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Cc: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/davinci-cpufreq.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/cpufreq/davinci-cpufreq.c b/drivers/cpufreq/davinci-cpufreq.c
index 551dd655c6f2..f67196e21fc9 100644
--- a/drivers/cpufreq/davinci-cpufreq.c
+++ b/drivers/cpufreq/davinci-cpufreq.c
@@ -140,15 +140,13 @@ static int davinci_cpu_init(struct cpufreq_policy *policy)
 
 	policy->cur = davinci_getspeed(0);
 
-	result = cpufreq_frequency_table_cpuinfo(policy, freq_table);
+	result = cpufreq_table_validate_and_show(policy, freq_table);
 	if (result) {
-		pr_err("%s: cpufreq_frequency_table_cpuinfo() failed",
+		pr_err("%s: cpufreq_table_validate_and_show() failed",
 				__func__);
 		return result;
 	}
 
-	cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
-
 	/*
 	 * Time measurement across the target() function yields ~1500-1800us
 	 * time taken with no drivers on notification list.
-- 
cgit 


From 025829e4a49df6ec860bf69edd2fcfe1db66798d Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:13 +0530
Subject: cpufreq: dbx500: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/dbx500-cpufreq.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/cpufreq/dbx500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c
index 26321cdc1946..8a484e91bbe6 100644
--- a/drivers/cpufreq/dbx500-cpufreq.c
+++ b/drivers/cpufreq/dbx500-cpufreq.c
@@ -87,10 +87,8 @@ static int dbx500_cpufreq_init(struct cpufreq_policy *policy)
 	int res;
 
 	/* get policy fields based on the table */
-	res = cpufreq_frequency_table_cpuinfo(policy, freq_table);
-	if (!res)
-		cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
-	else {
+	res = cpufreq_table_validate_and_show(policy, freq_table);
+	if (res) {
 		pr_err("dbx500-cpufreq: Failed to read policy table\n");
 		return res;
 	}
-- 
cgit 


From 7813ed7ec1597b002eebf9be19edd1283dbcc6fe Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:14 +0530
Subject: cpufreq: e_powersaver: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/e_powersaver.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/cpufreq/e_powersaver.c b/drivers/cpufreq/e_powersaver.c
index 09f64cc83019..c1b7c99d2ef1 100644
--- a/drivers/cpufreq/e_powersaver.c
+++ b/drivers/cpufreq/e_powersaver.c
@@ -403,13 +403,12 @@ static int eps_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency = 140000; /* 844mV -> 700mV in ns */
 	policy->cur = fsb * current_multiplier;
 
-	ret = cpufreq_frequency_table_cpuinfo(policy, &centaur->freq_table[0]);
+	ret = cpufreq_table_validate_and_show(policy, &centaur->freq_table[0]);
 	if (ret) {
 		kfree(centaur);
 		return ret;
 	}
 
-	cpufreq_frequency_table_get_attr(&centaur->freq_table[0], policy->cpu);
 	return 0;
 }
 
-- 
cgit 


From 55bb85b7aeca1e4a689764cb9f53727313130c7f Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:15 +0530
Subject: cpufreq: elanfreq: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/elanfreq.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/cpufreq/elanfreq.c b/drivers/cpufreq/elanfreq.c
index 823a400d98fd..4000c34e5e59 100644
--- a/drivers/cpufreq/elanfreq.c
+++ b/drivers/cpufreq/elanfreq.c
@@ -202,7 +202,6 @@ static int elanfreq_cpu_init(struct cpufreq_policy *policy)
 {
 	struct cpuinfo_x86 *c = &cpu_data(0);
 	unsigned int i;
-	int result;
 
 	/* capability check */
 	if ((c->x86_vendor != X86_VENDOR_AMD) ||
@@ -223,12 +222,7 @@ static int elanfreq_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
 	policy->cur = elanfreq_get_cpu_frequency(0);
 
-	result = cpufreq_frequency_table_cpuinfo(policy, elanfreq_table);
-	if (result)
-		return result;
-
-	cpufreq_frequency_table_get_attr(elanfreq_table, policy->cpu);
-	return 0;
+	return cpufreq_table_validate_and_show(policy, elanfreq_table);
 }
 
 
-- 
cgit 


From bc574ce9acb476cdd6622c196a81685b8e907de5 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:16 +0530
Subject: cpufreq: exynos: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Cc: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/exynos-cpufreq.c     | 4 +---
 drivers/cpufreq/exynos5440-cpufreq.c | 4 +---
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index 0fac34439e31..954baed95899 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -249,14 +249,12 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
 {
 	policy->cur = policy->min = policy->max = exynos_getspeed(policy->cpu);
 
-	cpufreq_frequency_table_get_attr(exynos_info->freq_table, policy->cpu);
-
 	/* set the transition latency value */
 	policy->cpuinfo.transition_latency = 100000;
 
 	cpumask_setall(policy->cpus);
 
-	return cpufreq_frequency_table_cpuinfo(policy, exynos_info->freq_table);
+	return cpufreq_table_validate_and_show(policy, exynos_info->freq_table);
 }
 
 static int exynos_cpufreq_cpu_exit(struct cpufreq_policy *policy)
diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c
index be5380ecdcd4..b62967148c80 100644
--- a/drivers/cpufreq/exynos5440-cpufreq.c
+++ b/drivers/cpufreq/exynos5440-cpufreq.c
@@ -326,7 +326,7 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
 {
 	int ret;
 
-	ret = cpufreq_frequency_table_cpuinfo(policy, dvfs_info->freq_table);
+	ret = cpufreq_table_validate_and_show(policy, dvfs_info->freq_table);
 	if (ret) {
 		dev_err(dvfs_info->dev, "Invalid frequency table: %d\n", ret);
 		return ret;
@@ -336,8 +336,6 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency = dvfs_info->latency;
 	cpumask_setall(policy->cpus);
 
-	cpufreq_frequency_table_get_attr(dvfs_info->freq_table, policy->cpu);
-
 	return 0;
 }
 
-- 
cgit 


From bbe2c1703d493dddc07abc579f6da239a2317cfa Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:17 +0530
Subject: cpufreq: ia64-acpi: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/ia64-acpi-cpufreq.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/cpufreq/ia64-acpi-cpufreq.c b/drivers/cpufreq/ia64-acpi-cpufreq.c
index 3e14f0317175..6cfad5193d3b 100644
--- a/drivers/cpufreq/ia64-acpi-cpufreq.c
+++ b/drivers/cpufreq/ia64-acpi-cpufreq.c
@@ -335,7 +335,7 @@ acpi_cpufreq_cpu_init (
 		}
 	}
 
-	result = cpufreq_frequency_table_cpuinfo(policy, data->freq_table);
+	result = cpufreq_table_validate_and_show(policy, data->freq_table);
 	if (result) {
 		goto err_freqfree;
 	}
@@ -356,8 +356,6 @@ acpi_cpufreq_cpu_init (
 			(u32) data->acpi_data.states[i].status,
 			(u32) data->acpi_data.states[i].control);
 
-	cpufreq_frequency_table_get_attr(data->freq_table, policy->cpu);
-
 	/* the first call to ->target() should result in us actually
 	 * writing something to the appropriate registers. */
 	data->resume = 1;
-- 
cgit 


From 9ff4a80b2551d43f92c3d9a7a11e406ce7aa47f3 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:18 +0530
Subject: cpufreq: imx6q: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/imx6q-cpufreq.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index c3fd2a101ca0..af0e202d8770 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -161,7 +161,7 @@ static int imx6q_cpufreq_init(struct cpufreq_policy *policy)
 {
 	int ret;
 
-	ret = cpufreq_frequency_table_cpuinfo(policy, freq_table);
+	ret = cpufreq_table_validate_and_show(policy, freq_table);
 	if (ret) {
 		dev_err(cpu_dev, "invalid frequency table: %d\n", ret);
 		return ret;
@@ -170,7 +170,6 @@ static int imx6q_cpufreq_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency = transition_latency;
 	policy->cur = clk_get_rate(arm_clk) / 1000;
 	cpumask_setall(policy->cpus);
-	cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
 
 	return 0;
 }
-- 
cgit 


From 6efbc777b9cf4af5efdd06e8365639cacbc65b7b Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:19 +0530
Subject: cpufreq: kirkwood: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/kirkwood-cpufreq.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c
index ba10658a9394..59cbb351fc6e 100644
--- a/drivers/cpufreq/kirkwood-cpufreq.c
+++ b/drivers/cpufreq/kirkwood-cpufreq.c
@@ -125,19 +125,11 @@ static int kirkwood_cpufreq_target(struct cpufreq_policy *policy,
 /* Module init and exit code */
 static int kirkwood_cpufreq_cpu_init(struct cpufreq_policy *policy)
 {
-	int result;
-
 	/* cpuinfo and default policy values */
 	policy->cpuinfo.transition_latency = 5000; /* 5uS */
 	policy->cur = kirkwood_cpufreq_get_cpu_frequency(0);
 
-	result = cpufreq_frequency_table_cpuinfo(policy, kirkwood_freq_table);
-	if (result)
-		return result;
-
-	cpufreq_frequency_table_get_attr(kirkwood_freq_table, policy->cpu);
-
-	return 0;
+	return cpufreq_table_validate_and_show(policy, kirkwood_freq_table);
 }
 
 static int kirkwood_cpufreq_cpu_exit(struct cpufreq_policy *policy)
-- 
cgit 


From 30aa53412797a45b0b21da332e7a0fc6a74bb061 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:20 +0530
Subject: cpufreq: longhaul: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/longhaul.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/cpufreq/longhaul.c b/drivers/cpufreq/longhaul.c
index 4ada1cccb052..70b66fda3cad 100644
--- a/drivers/cpufreq/longhaul.c
+++ b/drivers/cpufreq/longhaul.c
@@ -921,13 +921,7 @@ static int longhaul_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency = 200000;	/* nsec */
 	policy->cur = calc_speed(longhaul_get_cpu_mult());
 
-	ret = cpufreq_frequency_table_cpuinfo(policy, longhaul_table);
-	if (ret)
-		return ret;
-
-	cpufreq_frequency_table_get_attr(longhaul_table, policy->cpu);
-
-	return 0;
+	return cpufreq_table_validate_and_show(policy, longhaul_table);
 }
 
 static int longhaul_cpu_exit(struct cpufreq_policy *policy)
-- 
cgit 


From f71123522468805b3b4fe510172b7a46e046d89a Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:21 +0530
Subject: cpufreq: loongson2: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Cc: John Crispin <blogic@openwrt.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/loongson2_cpufreq.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c
index 7bc3c44d34e2..5dd3692441f7 100644
--- a/drivers/cpufreq/loongson2_cpufreq.c
+++ b/drivers/cpufreq/loongson2_cpufreq.c
@@ -133,10 +133,7 @@ static int loongson2_cpufreq_cpu_init(struct cpufreq_policy *policy)
 
 	policy->cur = loongson2_cpufreq_get(policy->cpu);
 
-	cpufreq_frequency_table_get_attr(&loongson2_clockmod_table[0],
-					 policy->cpu);
-
-	return cpufreq_frequency_table_cpuinfo(policy,
+	return cpufreq_table_validate_and_show(policy,
 					    &loongson2_clockmod_table[0]);
 }
 
-- 
cgit 


From 05b1621cb5134b89b6ab36e9b82bea32283c7c50 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:22 +0530
Subject: cpufreq: maple: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/maple-cpufreq.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/cpufreq/maple-cpufreq.c b/drivers/cpufreq/maple-cpufreq.c
index 6168d77b296d..b3fb661b2b56 100644
--- a/drivers/cpufreq/maple-cpufreq.c
+++ b/drivers/cpufreq/maple-cpufreq.c
@@ -181,10 +181,8 @@ static int maple_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	 * cpufreq core if in the secondary policy we tell it that
 	 * it actually must be one policy together with all others. */
 	cpumask_setall(policy->cpus);
-	cpufreq_frequency_table_get_attr(maple_cpu_freqs, policy->cpu);
 
-	return cpufreq_frequency_table_cpuinfo(policy,
-		maple_cpu_freqs);
+	return cpufreq_table_validate_and_show(policy, maple_cpu_freqs);
 }
 
 
-- 
cgit 


From aca71cf06792eadebd3f3df58e3c1af364ae0e8b Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:23 +0530
Subject: cpufreq: omap: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/omap-cpufreq.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index f31fcfcad514..b68ce4ed2948 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -191,12 +191,10 @@ static int omap_cpu_init(struct cpufreq_policy *policy)
 
 	atomic_inc_return(&freq_table_users);
 
-	result = cpufreq_frequency_table_cpuinfo(policy, freq_table);
+	result = cpufreq_table_validate_and_show(policy, freq_table);
 	if (result)
 		goto fail_table;
 
-	cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
-
 	policy->cur = omap_getspeed(policy->cpu);
 
 	/*
-- 
cgit 


From 719ffe495cfb86492ab47b05fde55fd5eafec159 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:24 +0530
Subject: cpufreq: p4-clockmod: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/p4-clockmod.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c
index 2f0a2a65c37f..03478bf29677 100644
--- a/drivers/cpufreq/p4-clockmod.c
+++ b/drivers/cpufreq/p4-clockmod.c
@@ -230,7 +230,6 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy)
 		else
 			p4clockmod_table[i].frequency = (stock_freq * i)/8;
 	}
-	cpufreq_frequency_table_get_attr(p4clockmod_table, policy->cpu);
 
 	/* cpuinfo and default policy values */
 
@@ -239,7 +238,7 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency = 10000001;
 	policy->cur = stock_freq;
 
-	return cpufreq_frequency_table_cpuinfo(policy, &p4clockmod_table[0]);
+	return cpufreq_table_validate_and_show(policy, &p4clockmod_table[0]);
 }
 
 
-- 
cgit 


From 2e4633e4c15b92ffc05e030907ebdb9404d5554c Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:25 +0530
Subject: cpufreq: pasemi: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/pasemi-cpufreq.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c
index 534e43a60d1f..23bc8a82b99e 100644
--- a/drivers/cpufreq/pasemi-cpufreq.c
+++ b/drivers/cpufreq/pasemi-cpufreq.c
@@ -219,12 +219,10 @@ static int pas_cpufreq_cpu_init(struct cpufreq_policy *policy)
 
 	ppc_proc_freq = policy->cur * 1000ul;
 
-	cpufreq_frequency_table_get_attr(pas_freqs, policy->cpu);
-
 	/* this ensures that policy->cpuinfo_min and policy->cpuinfo_max
 	 * are set correctly
 	 */
-	return cpufreq_frequency_table_cpuinfo(policy, pas_freqs);
+	return cpufreq_table_validate_and_show(policy, pas_freqs);
 
 out_unmap_sdcpwr:
 	iounmap(sdcpwr_mapbase);
-- 
cgit 


From 0e645df9c481b932c99cf1fd38c568b42c705408 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:26 +0530
Subject: cpufreq: pmac: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/pmac32-cpufreq.c | 3 +--
 drivers/cpufreq/pmac64-cpufreq.c | 4 +---
 2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/cpufreq/pmac32-cpufreq.c b/drivers/cpufreq/pmac32-cpufreq.c
index a096cd3fa23d..470b5553bb66 100644
--- a/drivers/cpufreq/pmac32-cpufreq.c
+++ b/drivers/cpufreq/pmac32-cpufreq.c
@@ -408,8 +408,7 @@ static int pmac_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency	= transition_latency;
 	policy->cur = cur_freq;
 
-	cpufreq_frequency_table_get_attr(pmac_cpu_freqs, policy->cpu);
-	return cpufreq_frequency_table_cpuinfo(policy, pmac_cpu_freqs);
+	return cpufreq_table_validate_and_show(policy, pmac_cpu_freqs);
 }
 
 static u32 read_gpio(struct device_node *np)
diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c
index 3a51ad7e47c8..41fa89e4d9d8 100644
--- a/drivers/cpufreq/pmac64-cpufreq.c
+++ b/drivers/cpufreq/pmac64-cpufreq.c
@@ -363,10 +363,8 @@ static int g5_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	 * cpufreq core if in the secondary policy we tell it that
 	 * it actually must be one policy together with all others. */
 	cpumask_copy(policy->cpus, cpu_online_mask);
-	cpufreq_frequency_table_get_attr(g5_cpu_freqs, policy->cpu);
 
-	return cpufreq_frequency_table_cpuinfo(policy,
-		g5_cpu_freqs);
+	return cpufreq_table_validate_and_show(policy, g5_cpu_freqs);
 }
 
 
-- 
cgit 


From b147405aa8e568750bfa99501c7fa831edef47c9 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:27 +0530
Subject: cpufreq: powernow: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/powernow-k6.c | 9 +--------
 drivers/cpufreq/powernow-k7.c | 4 +---
 drivers/cpufreq/powernow-k8.c | 4 +---
 3 files changed, 3 insertions(+), 14 deletions(-)

diff --git a/drivers/cpufreq/powernow-k6.c b/drivers/cpufreq/powernow-k6.c
index 85f1c8c25ddc..ab1de0d25099 100644
--- a/drivers/cpufreq/powernow-k6.c
+++ b/drivers/cpufreq/powernow-k6.c
@@ -145,7 +145,6 @@ static int powernow_k6_target(struct cpufreq_policy *policy,
 static int powernow_k6_cpu_init(struct cpufreq_policy *policy)
 {
 	unsigned int i, f;
-	int result;
 
 	if (policy->cpu != 0)
 		return -ENODEV;
@@ -167,13 +166,7 @@ static int powernow_k6_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency = 200000;
 	policy->cur = busfreq * max_multiplier;
 
-	result = cpufreq_frequency_table_cpuinfo(policy, clock_ratio);
-	if (result)
-		return result;
-
-	cpufreq_frequency_table_get_attr(clock_ratio, policy->cpu);
-
-	return 0;
+	return cpufreq_table_validate_and_show(policy, clock_ratio);
 }
 
 
diff --git a/drivers/cpufreq/powernow-k7.c b/drivers/cpufreq/powernow-k7.c
index 14ce480be8ab..c863c13dfcc8 100644
--- a/drivers/cpufreq/powernow-k7.c
+++ b/drivers/cpufreq/powernow-k7.c
@@ -680,9 +680,7 @@ static int powernow_cpu_init(struct cpufreq_policy *policy)
 
 	policy->cur = powernow_get(0);
 
-	cpufreq_frequency_table_get_attr(powernow_table, policy->cpu);
-
-	return cpufreq_frequency_table_cpuinfo(policy, powernow_table);
+	return cpufreq_table_validate_and_show(policy, powernow_table);
 }
 
 static int powernow_cpu_exit(struct cpufreq_policy *policy)
diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c
index 2344a9ed17f3..8d4114a043b3 100644
--- a/drivers/cpufreq/powernow-k8.c
+++ b/drivers/cpufreq/powernow-k8.c
@@ -1156,7 +1156,7 @@ static int powernowk8_cpu_init(struct cpufreq_policy *pol)
 	pr_debug("policy current frequency %d kHz\n", pol->cur);
 
 	/* min/max the cpu is capable of */
-	if (cpufreq_frequency_table_cpuinfo(pol, data->powernow_table)) {
+	if (cpufreq_table_validate_and_show(pol, data->powernow_table)) {
 		printk(KERN_ERR FW_BUG PFX "invalid powernow_table\n");
 		powernow_k8_cpu_exit_acpi(data);
 		kfree(data->powernow_table);
@@ -1164,8 +1164,6 @@ static int powernowk8_cpu_init(struct cpufreq_policy *pol)
 		return -EINVAL;
 	}
 
-	cpufreq_frequency_table_get_attr(data->powernow_table, pol->cpu);
-
 	pr_debug("cpu_init done, current fid 0x%x, vid 0x%x\n",
 		 data->currfid, data->currvid);
 
-- 
cgit 


From 6b4147db3de33b49a5c6a88736e9322936672dc4 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:28 +0530
Subject: cpufreq: ppc: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/ppc-corenet-cpufreq.c | 3 +--
 drivers/cpufreq/ppc_cbe_cpufreq.c     | 4 +---
 2 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/cpufreq/ppc-corenet-cpufreq.c b/drivers/cpufreq/ppc-corenet-cpufreq.c
index 60e81d524ea8..5716b44ffc0d 100644
--- a/drivers/cpufreq/ppc-corenet-cpufreq.c
+++ b/drivers/cpufreq/ppc-corenet-cpufreq.c
@@ -202,7 +202,7 @@ static int corenet_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	table[i].frequency = CPUFREQ_TABLE_END;
 
 	/* set the min and max frequency properly */
-	ret = cpufreq_frequency_table_cpuinfo(policy, table);
+	ret = cpufreq_table_validate_and_show(policy, table);
 	if (ret) {
 		pr_err("invalid frequency table: %d\n", ret);
 		goto err_nomem1;
@@ -219,7 +219,6 @@ static int corenet_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
 	policy->cur = corenet_cpufreq_get_speed(policy->cpu);
 
-	cpufreq_frequency_table_get_attr(table, cpu);
 	of_node_put(np);
 
 	return 0;
diff --git a/drivers/cpufreq/ppc_cbe_cpufreq.c b/drivers/cpufreq/ppc_cbe_cpufreq.c
index 2e448f0bbdc5..6c5be63ce918 100644
--- a/drivers/cpufreq/ppc_cbe_cpufreq.c
+++ b/drivers/cpufreq/ppc_cbe_cpufreq.c
@@ -123,11 +123,9 @@ static int cbe_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	cpumask_copy(policy->cpus, cpu_sibling_mask(policy->cpu));
 #endif
 
-	cpufreq_frequency_table_get_attr(cbe_freqs, policy->cpu);
-
 	/* this ensures that policy->cpuinfo_min
 	 * and policy->cpuinfo_max are set correctly */
-	return cpufreq_frequency_table_cpuinfo(policy, cbe_freqs);
+	return cpufreq_table_validate_and_show(policy, cbe_freqs);
 }
 
 static int cbe_cpufreq_cpu_exit(struct cpufreq_policy *policy)
-- 
cgit 


From 15cc921b97f1c0aac38edfe7c796bfb5d5f4676b Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:29 +0530
Subject: cpufreq: pxa: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Cc: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/pxa2xx-cpufreq.c | 6 ++----
 drivers/cpufreq/pxa3xx-cpufreq.c | 8 ++------
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/cpufreq/pxa2xx-cpufreq.c b/drivers/cpufreq/pxa2xx-cpufreq.c
index b004cf1d07af..236531a0753a 100644
--- a/drivers/cpufreq/pxa2xx-cpufreq.c
+++ b/drivers/cpufreq/pxa2xx-cpufreq.c
@@ -454,12 +454,10 @@ static int pxa_cpufreq_init(struct cpufreq_policy *policy)
 		pr_info("PXA255 cpufreq using %s frequency table\n",
 			pxa255_turbo_table ? "turbo" : "run");
 
-		cpufreq_frequency_table_cpuinfo(policy, pxa255_freq_table);
-		cpufreq_frequency_table_get_attr(pxa255_freq_table, policy->cpu);
+		cpufreq_table_validate_and_show(policy, pxa255_freq_table);
 	}
 	else if (cpu_is_pxa27x()) {
-		cpufreq_frequency_table_cpuinfo(policy, pxa27x_freq_table);
-		cpufreq_frequency_table_get_attr(pxa27x_freq_table, policy->cpu);
+		cpufreq_table_validate_and_show(policy, pxa27x_freq_table);
 	}
 
 	printk(KERN_INFO "PXA CPU frequency change support initialized\n");
diff --git a/drivers/cpufreq/pxa3xx-cpufreq.c b/drivers/cpufreq/pxa3xx-cpufreq.c
index cebbed19765e..65fd01e57cba 100644
--- a/drivers/cpufreq/pxa3xx-cpufreq.c
+++ b/drivers/cpufreq/pxa3xx-cpufreq.c
@@ -91,7 +91,7 @@ static int setup_freqs_table(struct cpufreq_policy *policy,
 			     struct pxa3xx_freq_info *freqs, int num)
 {
 	struct cpufreq_frequency_table *table;
-	int i, ret;
+	int i;
 
 	table = kzalloc((num + 1) * sizeof(*table), GFP_KERNEL);
 	if (table == NULL)
@@ -108,11 +108,7 @@ static int setup_freqs_table(struct cpufreq_policy *policy,
 	pxa3xx_freqs_num = num;
 	pxa3xx_freqs_table = table;
 
-	ret = cpufreq_frequency_table_cpuinfo(policy, table);
-	if (!ret)
-		cpufreq_frequency_table_get_attr(table, policy->cpu);
-
-	return ret;
+	return cpufreq_table_validate_and_show(policy, table);
 }
 
 static void __update_core_freq(struct pxa3xx_freq_info *info)
-- 
cgit 


From 4974b8ea4add1ae5e3123fe734deb12859da725b Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:30 +0530
Subject: cpufreq: s3cx4xx: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Cc: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/s3c2416-cpufreq.c | 4 +---
 drivers/cpufreq/s3c24xx-cpufreq.c | 6 ++----
 drivers/cpufreq/s3c64xx-cpufreq.c | 5 +----
 3 files changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c
index 22dcb81ef9d0..a7a4c612d156 100644
--- a/drivers/cpufreq/s3c2416-cpufreq.c
+++ b/drivers/cpufreq/s3c2416-cpufreq.c
@@ -494,12 +494,10 @@ static int __init s3c2416_cpufreq_driver_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency = (500 * 1000) +
 					     s3c_freq->regulator_latency;
 
-	ret = cpufreq_frequency_table_cpuinfo(policy, s3c_freq->freq_table);
+	ret = cpufreq_table_validate_and_show(policy, s3c_freq->freq_table);
 	if (ret)
 		goto err_freq_table;
 
-	cpufreq_frequency_table_get_attr(s3c_freq->freq_table, 0);
-
 	register_reboot_notifier(&s3c2416_cpufreq_reboot_notifier);
 
 	return 0;
diff --git a/drivers/cpufreq/s3c24xx-cpufreq.c b/drivers/cpufreq/s3c24xx-cpufreq.c
index f2c872c7bbb2..73856d1d4d40 100644
--- a/drivers/cpufreq/s3c24xx-cpufreq.c
+++ b/drivers/cpufreq/s3c24xx-cpufreq.c
@@ -386,10 +386,8 @@ static int s3c_cpufreq_init(struct cpufreq_policy *policy)
 	/* feed the latency information from the cpu driver */
 	policy->cpuinfo.transition_latency = cpu_cur.info->latency;
 
-	if (ftab) {
-		cpufreq_frequency_table_cpuinfo(policy, ftab);
-		cpufreq_frequency_table_get_attr(ftab, policy->cpu);
-	}
+	if (ftab)
+		return cpufreq_table_validate_and_show(policy, ftab);
 
 	return 0;
 }
diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c
index 90240436e3b8..872f74dd401a 100644
--- a/drivers/cpufreq/s3c64xx-cpufreq.c
+++ b/drivers/cpufreq/s3c64xx-cpufreq.c
@@ -251,15 +251,12 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy)
 	 */
 	policy->cpuinfo.transition_latency = (500 * 1000) + regulator_latency;
 
-	ret = cpufreq_frequency_table_cpuinfo(policy, s3c64xx_freq_table);
+	ret = cpufreq_table_validate_and_show(policy, s3c64xx_freq_table);
 	if (ret != 0) {
 		pr_err("Failed to configure frequency table: %d\n",
 		       ret);
 		regulator_put(vddarm);
 		clk_put(armclk);
-	} else {
-		cpufreq_frequency_table_get_attr(s3c64xx_freq_table,
-				policy->cpu);
 	}
 
 	return ret;
-- 
cgit 


From 291e8fb1a320ef9bce679dba9d6c6892e5e2c774 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:31 +0530
Subject: cpufreq: s5pv210: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Cc: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/s5pv210-cpufreq.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/cpufreq/s5pv210-cpufreq.c b/drivers/cpufreq/s5pv210-cpufreq.c
index 5c7757073793..c266a7ef3a7b 100644
--- a/drivers/cpufreq/s5pv210-cpufreq.c
+++ b/drivers/cpufreq/s5pv210-cpufreq.c
@@ -553,11 +553,9 @@ static int __init s5pv210_cpu_init(struct cpufreq_policy *policy)
 
 	policy->cur = policy->min = policy->max = s5pv210_getspeed(0);
 
-	cpufreq_frequency_table_get_attr(s5pv210_freq_table, policy->cpu);
-
 	policy->cpuinfo.transition_latency = 40000;
 
-	return cpufreq_frequency_table_cpuinfo(policy, s5pv210_freq_table);
+	return cpufreq_table_validate_and_show(policy, s5pv210_freq_table);
 
 out_dmc1:
 	clk_put(dmc0_clk);
-- 
cgit 


From 22c8b4f1409097c073a0f894406c8bb9525bfb68 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:32 +0530
Subject: cpufreq: sa11x0: Expose frequency table

This patch exposes sa11x0's frequency table to cpufreq core. It always existed
but not as an array frequencies and not in the format cpufreq core wants it to.
Also it was present in the unit of 100kHz earlier which is made consistent with
cpufreq core now, i.e. kHz.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/arm/mach-sa1100/generic.c   | 45 ++++++++++++++++++++--------------------
 arch/arm/mach-sa1100/generic.h   |  1 +
 drivers/cpufreq/sa1100-cpufreq.c |  3 ++-
 drivers/cpufreq/sa1110-cpufreq.c |  3 ++-
 4 files changed, 27 insertions(+), 25 deletions(-)

diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c
index f25b6119e028..5c8167b05c26 100644
--- a/arch/arm/mach-sa1100/generic.c
+++ b/arch/arm/mach-sa1100/generic.c
@@ -42,23 +42,24 @@ EXPORT_SYMBOL(reset_status);
 /*
  * This table is setup for a 3.6864MHz Crystal.
  */
-static const unsigned short cclk_frequency_100khz[NR_FREQS] = {
-	 590,	/*  59.0 MHz */
-	 737,	/*  73.7 MHz */
-	 885,	/*  88.5 MHz */
-	1032,	/* 103.2 MHz */
-	1180,	/* 118.0 MHz */
-	1327,	/* 132.7 MHz */
-	1475,	/* 147.5 MHz */
-	1622,	/* 162.2 MHz */
-	1769,	/* 176.9 MHz */
-	1917,	/* 191.7 MHz */
-	2064,	/* 206.4 MHz */
-	2212,	/* 221.2 MHz */
-	2359,	/* 235.9 MHz */
-	2507,	/* 250.7 MHz */
-	2654,	/* 265.4 MHz */
-	2802	/* 280.2 MHz */
+struct cpufreq_frequency_table sa11x0_freq_table[NR_FREQS+1] = {
+	{ .frequency = 59000,	/*  59.0 MHz */},
+	{ .frequency = 73700,	/*  73.7 MHz */},
+	{ .frequency = 88500,	/*  88.5 MHz */},
+	{ .frequency = 103200,	/* 103.2 MHz */},
+	{ .frequency = 118000,	/* 118.0 MHz */},
+	{ .frequency = 132700,	/* 132.7 MHz */},
+	{ .frequency = 147500,	/* 147.5 MHz */},
+	{ .frequency = 162200,	/* 162.2 MHz */},
+	{ .frequency = 176900,	/* 176.9 MHz */},
+	{ .frequency = 191700,	/* 191.7 MHz */},
+	{ .frequency = 206400,	/* 206.4 MHz */},
+	{ .frequency = 221200,	/* 221.2 MHz */},
+	{ .frequency = 235900,	/* 235.9 MHz */},
+	{ .frequency = 250700,	/* 250.7 MHz */},
+	{ .frequency = 265400,	/* 265.4 MHz */},
+	{ .frequency = 280200,	/* 280.2 MHz */},
+	{ .frequency = CPUFREQ_TABLE_END, },
 };
 
 /* rounds up(!)  */
@@ -66,10 +67,8 @@ unsigned int sa11x0_freq_to_ppcr(unsigned int khz)
 {
 	int i;
 
-	khz /= 100;
-
 	for (i = 0; i < NR_FREQS; i++)
-		if (cclk_frequency_100khz[i] >= khz)
+		if (sa11x0_freq_table[i].frequency >= khz)
 			break;
 
 	return i;
@@ -79,7 +78,7 @@ unsigned int sa11x0_ppcr_to_freq(unsigned int idx)
 {
 	unsigned int freq = 0;
 	if (idx < NR_FREQS)
-		freq = cclk_frequency_100khz[idx] * 100;
+		freq = sa11x0_freq_table[idx].frequency;
 	return freq;
 }
 
@@ -96,7 +95,7 @@ int sa11x0_verify_speed(struct cpufreq_policy *policy)
 	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, policy->cpuinfo.max_freq);
 
 	/* make sure that at least one frequency is within the policy */
-	tmp = cclk_frequency_100khz[sa11x0_freq_to_ppcr(policy->min)] * 100;
+	tmp = sa11x0_freq_table[sa11x0_freq_to_ppcr(policy->min)].frequency;
 	if (tmp > policy->max)
 		policy->max = tmp;
 
@@ -109,7 +108,7 @@ unsigned int sa11x0_getspeed(unsigned int cpu)
 {
 	if (cpu)
 		return 0;
-	return cclk_frequency_100khz[PPCR & 0xf] * 100;
+	return sa11x0_freq_table[PPCR & 0xf].frequency;
 }
 
 /*
diff --git a/arch/arm/mach-sa1100/generic.h b/arch/arm/mach-sa1100/generic.h
index 9a33695c9492..f5214ce494ab 100644
--- a/arch/arm/mach-sa1100/generic.h
+++ b/arch/arm/mach-sa1100/generic.h
@@ -21,6 +21,7 @@ extern void sa1110_mb_disable(void);
 
 struct cpufreq_policy;
 
+extern struct cpufreq_frequency_table sa11x0_freq_table[];
 extern unsigned int sa11x0_freq_to_ppcr(unsigned int khz);
 extern int sa11x0_verify_speed(struct cpufreq_policy *policy);
 extern unsigned int sa11x0_getspeed(unsigned int cpu);
diff --git a/drivers/cpufreq/sa1100-cpufreq.c b/drivers/cpufreq/sa1100-cpufreq.c
index cff18e87ca58..1323a6986f7e 100644
--- a/drivers/cpufreq/sa1100-cpufreq.c
+++ b/drivers/cpufreq/sa1100-cpufreq.c
@@ -224,7 +224,8 @@ static int __init sa1100_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.min_freq = 59000;
 	policy->cpuinfo.max_freq = 287000;
 	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
-	return 0;
+
+	return cpufreq_table_validate_and_show(policy, sa11x0_freq_table);
 }
 
 static struct cpufreq_driver sa1100_driver __refdata = {
diff --git a/drivers/cpufreq/sa1110-cpufreq.c b/drivers/cpufreq/sa1110-cpufreq.c
index 39c90b6f4286..adb05247c1c4 100644
--- a/drivers/cpufreq/sa1110-cpufreq.c
+++ b/drivers/cpufreq/sa1110-cpufreq.c
@@ -338,7 +338,8 @@ static int __init sa1110_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.min_freq = 59000;
 	policy->cpuinfo.max_freq = 287000;
 	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
-	return 0;
+
+	return cpufreq_table_validate_and_show(policy, sa11x0_freq_table);
 }
 
 /* sa1110_driver needs __refdata because it must remain after init registers
-- 
cgit 


From 53862f7a0b75f3d8e7445b864aa45cfa4aa49570 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:33 +0530
Subject: cpufreq: sa11x0: let cpufreq core initialize struct policy fields

Many fields of struct policy are filled by cpufreq core when we call
cpufreq_table_validate_and_show() and so cpufreq driver doesn't need to set them
anymore.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/sa1100-cpufreq.c | 4 +---
 drivers/cpufreq/sa1110-cpufreq.c | 4 +---
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/cpufreq/sa1100-cpufreq.c b/drivers/cpufreq/sa1100-cpufreq.c
index 1323a6986f7e..37fce2f15711 100644
--- a/drivers/cpufreq/sa1100-cpufreq.c
+++ b/drivers/cpufreq/sa1100-cpufreq.c
@@ -220,9 +220,7 @@ static int __init sa1100_cpu_init(struct cpufreq_policy *policy)
 {
 	if (policy->cpu != 0)
 		return -EINVAL;
-	policy->cur = policy->min = policy->max = sa11x0_getspeed(0);
-	policy->cpuinfo.min_freq = 59000;
-	policy->cpuinfo.max_freq = 287000;
+	policy->cur = sa11x0_getspeed(0);
 	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
 
 	return cpufreq_table_validate_and_show(policy, sa11x0_freq_table);
diff --git a/drivers/cpufreq/sa1110-cpufreq.c b/drivers/cpufreq/sa1110-cpufreq.c
index adb05247c1c4..13760fc63859 100644
--- a/drivers/cpufreq/sa1110-cpufreq.c
+++ b/drivers/cpufreq/sa1110-cpufreq.c
@@ -334,9 +334,7 @@ static int __init sa1110_cpu_init(struct cpufreq_policy *policy)
 {
 	if (policy->cpu != 0)
 		return -EINVAL;
-	policy->cur = policy->min = policy->max = sa11x0_getspeed(0);
-	policy->cpuinfo.min_freq = 59000;
-	policy->cpuinfo.max_freq = 287000;
+	policy->cur = sa11x0_getspeed(0);
 	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
 
 	return cpufreq_table_validate_and_show(policy, sa11x0_freq_table);
-- 
cgit 


From ae025193d3b811e1cd6bdfa7dc4940ae9e2739d1 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:34 +0530
Subject: cpufreq: sc520: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/sc520_freq.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/cpufreq/sc520_freq.c b/drivers/cpufreq/sc520_freq.c
index d6f6c6f4efa7..bb9c0def3f0d 100644
--- a/drivers/cpufreq/sc520_freq.c
+++ b/drivers/cpufreq/sc520_freq.c
@@ -106,7 +106,6 @@ static int sc520_freq_target(struct cpufreq_policy *policy,
 static int sc520_freq_cpu_init(struct cpufreq_policy *policy)
 {
 	struct cpuinfo_x86 *c = &cpu_data(0);
-	int result;
 
 	/* capability check */
 	if (c->x86_vendor != X86_VENDOR_AMD ||
@@ -117,13 +116,7 @@ static int sc520_freq_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency = 1000000; /* 1ms */
 	policy->cur = sc520_freq_get_cpu_frequency(0);
 
-	result = cpufreq_frequency_table_cpuinfo(policy, sc520_freq_table);
-	if (result)
-		return result;
-
-	cpufreq_frequency_table_get_attr(sc520_freq_table, policy->cpu);
-
-	return 0;
+	return cpufreq_table_validate_and_show(policy, sc520_freq_table);
 }
 
 
-- 
cgit 


From c25d01b3e2407ac536bcd40f2d23fc5c5019fa23 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:35 +0530
Subject: cpufreq: sh: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/sh-cpufreq.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/cpufreq/sh-cpufreq.c b/drivers/cpufreq/sh-cpufreq.c
index ffc6d24b0cfb..1362e8894ee1 100644
--- a/drivers/cpufreq/sh-cpufreq.c
+++ b/drivers/cpufreq/sh-cpufreq.c
@@ -120,9 +120,9 @@ static int sh_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	if (freq_table) {
 		int result;
 
-		result = cpufreq_frequency_table_cpuinfo(policy, freq_table);
-		if (!result)
-			cpufreq_frequency_table_get_attr(freq_table, cpu);
+		result = cpufreq_table_validate_and_show(policy, freq_table);
+		if (result)
+			return result;
 	} else {
 		dev_notice(dev, "no frequency table found, falling back "
 			   "to rate rounding.\n");
-- 
cgit 


From f1a707c023a9029487ad8f4f6afd1a953a2e31ff Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:36 +0530
Subject: cpufreq: sparc: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/sparc-us2e-cpufreq.c | 6 +-----
 drivers/cpufreq/sparc-us3-cpufreq.c  | 7 +------
 2 files changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/cpufreq/sparc-us2e-cpufreq.c b/drivers/cpufreq/sparc-us2e-cpufreq.c
index 63b3eae5ffdc..8db0c1890c92 100644
--- a/drivers/cpufreq/sparc-us2e-cpufreq.c
+++ b/drivers/cpufreq/sparc-us2e-cpufreq.c
@@ -307,7 +307,6 @@ static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy)
 	unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000;
 	struct cpufreq_frequency_table *table =
 		&us2e_freq_table[cpu].table[0];
-	int ret;
 
 	table[0].driver_data = 0;
 	table[0].frequency = clock_tick / 1;
@@ -325,10 +324,7 @@ static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency = 0;
 	policy->cur = clock_tick;
 
-	ret = cpufreq_frequency_table_cpuinfo(policy, table);
-	if (!ret)
-		cpufreq_frequency_table_get_attr(table, policy->cpu);
-	return ret;
+	return cpufreq_table_validate_and_show(policy, table);
 }
 
 static int us2e_freq_cpu_exit(struct cpufreq_policy *policy)
diff --git a/drivers/cpufreq/sparc-us3-cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c
index 985bc56b0068..120a2df2bc70 100644
--- a/drivers/cpufreq/sparc-us3-cpufreq.c
+++ b/drivers/cpufreq/sparc-us3-cpufreq.c
@@ -168,7 +168,6 @@ static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
 	unsigned long clock_tick = sparc64_get_clock_tick(cpu) / 1000;
 	struct cpufreq_frequency_table *table =
 		&us3_freq_table[cpu].table[0];
-	int ret;
 
 	table[0].driver_data = 0;
 	table[0].frequency = clock_tick / 1;
@@ -182,11 +181,7 @@ static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency = 0;
 	policy->cur = clock_tick;
 
-	ret = cpufreq_frequency_table_cpuinfo(policy, table);
-	if (!ret)
-		cpufreq_frequency_table_get_attr(table, policy->cpu);
-
-	return ret;
+	return cpufreq_table_validate_and_show(policy, table);
 }
 
 static int us3_freq_cpu_exit(struct cpufreq_policy *policy)
-- 
cgit 


From 4a1fe2bfc9e49c48a166d0229e09d3069893a8fa Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:37 +0530
Subject: cpufreq: spear: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/spear-cpufreq.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/cpufreq/spear-cpufreq.c b/drivers/cpufreq/spear-cpufreq.c
index 19e364fa5955..b86be6bd9b92 100644
--- a/drivers/cpufreq/spear-cpufreq.c
+++ b/drivers/cpufreq/spear-cpufreq.c
@@ -178,13 +178,12 @@ static int spear_cpufreq_init(struct cpufreq_policy *policy)
 {
 	int ret;
 
-	ret = cpufreq_frequency_table_cpuinfo(policy, spear_cpufreq.freq_tbl);
+	ret = cpufreq_table_validate_and_show(policy, spear_cpufreq.freq_tbl);
 	if (ret) {
-		pr_err("cpufreq_frequency_table_cpuinfo() failed");
+		pr_err("cpufreq_table_validate_and_show() failed");
 		return ret;
 	}
 
-	cpufreq_frequency_table_get_attr(spear_cpufreq.freq_tbl, policy->cpu);
 	policy->cpuinfo.transition_latency = spear_cpufreq.transition_latency;
 	policy->cur = spear_cpufreq_get(0);
 
-- 
cgit 


From 5f3a2d39bb9dd4372c52fb2568c4520bcc91c8c4 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:38 +0530
Subject: cpufreq: speedstep: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/speedstep-centrino.c | 10 +---------
 drivers/cpufreq/speedstep-ich.c      |  9 +--------
 drivers/cpufreq/speedstep-smi.c      |  8 +-------
 3 files changed, 3 insertions(+), 24 deletions(-)

diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c
index f897d5105842..f180561c3635 100644
--- a/drivers/cpufreq/speedstep-centrino.c
+++ b/drivers/cpufreq/speedstep-centrino.c
@@ -345,7 +345,6 @@ static int centrino_cpu_init(struct cpufreq_policy *policy)
 	struct cpuinfo_x86 *cpu = &cpu_data(policy->cpu);
 	unsigned freq;
 	unsigned l, h;
-	int ret;
 	int i;
 
 	/* Only Intel makes Enhanced Speedstep-capable CPUs */
@@ -402,15 +401,8 @@ static int centrino_cpu_init(struct cpufreq_policy *policy)
 
 	pr_debug("centrino_cpu_init: cur=%dkHz\n", policy->cur);
 
-	ret = cpufreq_frequency_table_cpuinfo(policy,
+	return cpufreq_table_validate_and_show(policy,
 		per_cpu(centrino_model, policy->cpu)->op_points);
-	if (ret)
-		return (ret);
-
-	cpufreq_frequency_table_get_attr(
-		per_cpu(centrino_model, policy->cpu)->op_points, policy->cpu);
-
-	return 0;
 }
 
 static int centrino_cpu_exit(struct cpufreq_policy *policy)
diff --git a/drivers/cpufreq/speedstep-ich.c b/drivers/cpufreq/speedstep-ich.c
index 5355abb69afc..86a184eaa815 100644
--- a/drivers/cpufreq/speedstep-ich.c
+++ b/drivers/cpufreq/speedstep-ich.c
@@ -320,7 +320,6 @@ static void get_freqs_on_cpu(void *_get_freqs)
 
 static int speedstep_cpu_init(struct cpufreq_policy *policy)
 {
-	int result;
 	unsigned int policy_cpu, speed;
 	struct get_freqs gf;
 
@@ -349,13 +348,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy)
 	/* cpuinfo and default policy values */
 	policy->cur = speed;
 
-	result = cpufreq_frequency_table_cpuinfo(policy, speedstep_freqs);
-	if (result)
-		return result;
-
-	cpufreq_frequency_table_get_attr(speedstep_freqs, policy->cpu);
-
-	return 0;
+	return cpufreq_table_validate_and_show(policy, speedstep_freqs);
 }
 
 
diff --git a/drivers/cpufreq/speedstep-smi.c b/drivers/cpufreq/speedstep-smi.c
index abfba4f731eb..f4d03186e0c1 100644
--- a/drivers/cpufreq/speedstep-smi.c
+++ b/drivers/cpufreq/speedstep-smi.c
@@ -329,13 +329,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
 	policy->cur = speed;
 
-	result = cpufreq_frequency_table_cpuinfo(policy, speedstep_freqs);
-	if (result)
-		return result;
-
-	cpufreq_frequency_table_get_attr(speedstep_freqs, policy->cpu);
-
-	return 0;
+	return cpufreq_table_validate_and_show(policy, speedstep_freqs);
 }
 
 static int speedstep_cpu_exit(struct cpufreq_policy *policy)
-- 
cgit 


From 2338799f3247ec19447a201baea8cf55bdc071d9 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:39 +0530
Subject: cpufreq: tegra: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().

Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/tegra-cpufreq.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c
index a7b876fdc1d8..d45c1d80125d 100644
--- a/drivers/cpufreq/tegra-cpufreq.c
+++ b/drivers/cpufreq/tegra-cpufreq.c
@@ -215,8 +215,7 @@ static int tegra_cpu_init(struct cpufreq_policy *policy)
 	clk_prepare_enable(emc_clk);
 	clk_prepare_enable(cpu_clk);
 
-	cpufreq_frequency_table_cpuinfo(policy, freq_table);
-	cpufreq_frequency_table_get_attr(freq_table, policy->cpu);
+	cpufreq_table_validate_and_show(policy, freq_table);
 	policy->cur = tegra_getspeed(policy->cpu);
 	target_cpu_speed[policy->cpu] = policy->cur;
 
-- 
cgit 


From 2e6a5c80e6fa8fd3af6c2ffc5ad6073e798a1690 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:40 +0530
Subject: cpufreq: tegra: fix implementation of ->exit()

->exit() of drivers should call cpufreq_frequency_table_put_attr() if they have
called cpufreq_frequency_table_get_attr() earlier in init() and they aren't
required to validate their cpufreq table in exit by calling
cpufreq_frequency_table_cpuinfo(). Tegra's driver wasn't calling
cpufreq_frequency_table_put_attr() and was calling
cpufreq_frequency_table_cpuinfo() in exit.

Fix both these issues in it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/tegra-cpufreq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c
index d45c1d80125d..e0140779b864 100644
--- a/drivers/cpufreq/tegra-cpufreq.c
+++ b/drivers/cpufreq/tegra-cpufreq.c
@@ -232,7 +232,7 @@ static int tegra_cpu_init(struct cpufreq_policy *policy)
 
 static int tegra_cpu_exit(struct cpufreq_policy *policy)
 {
-	cpufreq_frequency_table_cpuinfo(policy, freq_table);
+	cpufreq_frequency_table_put_attr(policy->cpu);
 	clk_disable_unprepare(emc_clk);
 	return 0;
 }
-- 
cgit 


From 848cb944213e88e4929a7efcc1c92bb6b6445353 Mon Sep 17 00:00:00 2001
From: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Date: Mon, 16 Sep 2013 18:56:41 +0530
Subject: cpufreq: at32ap: add frequency table

This patch adds a dynamically calculated frequency table to the at32ap driver.
In short the architecture can scale in power of two between a maximum and
minimum frequency. Min, max, and the steps in between are added to the table.

Signed-off-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/at32ap-cpufreq.c | 49 +++++++++++++++++++++++++++++++++++++---
 1 file changed, 46 insertions(+), 3 deletions(-)

diff --git a/drivers/cpufreq/at32ap-cpufreq.c b/drivers/cpufreq/at32ap-cpufreq.c
index e0c38d938997..1d19fa59bc2c 100644
--- a/drivers/cpufreq/at32ap-cpufreq.c
+++ b/drivers/cpufreq/at32ap-cpufreq.c
@@ -19,8 +19,10 @@
 #include <linux/clk.h>
 #include <linux/err.h>
 #include <linux/export.h>
+#include <linux/slab.h>
 
 static struct clk *cpuclk;
+static struct cpufreq_frequency_table *freq_table;
 
 static int at32_verify_speed(struct cpufreq_policy *policy)
 {
@@ -85,13 +87,17 @@ static int at32_set_target(struct cpufreq_policy *policy,
 
 static int __init at32_cpufreq_driver_init(struct cpufreq_policy *policy)
 {
+	unsigned int frequency, rate;
+	int retval, steps, i;
+
 	if (policy->cpu != 0)
 		return -EINVAL;
 
 	cpuclk = clk_get(NULL, "cpu");
 	if (IS_ERR(cpuclk)) {
 		pr_debug("cpufreq: could not get CPU clk\n");
-		return PTR_ERR(cpuclk);
+		retval = PTR_ERR(cpuclk);
+		goto out_err;
 	}
 
 	policy->cpuinfo.min_freq = (clk_round_rate(cpuclk, 1) + 500) / 1000;
@@ -101,9 +107,46 @@ static int __init at32_cpufreq_driver_init(struct cpufreq_policy *policy)
 	policy->min = policy->cpuinfo.min_freq;
 	policy->max = policy->cpuinfo.max_freq;
 
-	printk("cpufreq: AT32AP CPU frequency driver\n");
+	/*
+	 * AVR32 CPU frequency rate scales in power of two between maximum and
+	 * minimum, also add space for the table end marker.
+	 *
+	 * Further validate that the frequency is usable, and append it to the
+	 * frequency table.
+	 */
+	steps = fls(policy->cpuinfo.max_freq / policy->cpuinfo.min_freq) + 1;
+	freq_table = kzalloc(steps * sizeof(struct cpufreq_frequency_table),
+			GFP_KERNEL);
+	if (!freq_table) {
+		retval = -ENOMEM;
+		goto out_err_put_clk;
+	}
 
-	return 0;
+	frequency = policy->cpuinfo.max_freq;
+	for (i = 0; i < (steps - 1); i++) {
+		rate = clk_round_rate(cpuclk, frequency * 1000) / 1000;
+
+		if (rate != frequency)
+			freq_table[i].frequency = CPUFREQ_ENTRY_INVALID;
+		else
+			freq_table[i].frequency = frequency;
+
+		frequency /= 2;
+	}
+
+	freq_table[steps - 1].frequency = CPUFREQ_TABLE_END;
+
+	retval = cpufreq_table_validate_and_show(policy, freq_table);
+	if (!retval) {
+		printk("cpufreq: AT32AP CPU frequency driver\n");
+		return 0;
+	}
+
+	kfree(freq_table);
+out_err_put_clk:
+	clk_put(cpuclk);
+out_err:
+	return retval;
 }
 
 static struct cpufreq_driver at32_driver = {
-- 
cgit 


From 2457dac670f287b260d50792988f4788f403ca32 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:42 +0530
Subject: cpufreq: arm_big_little: call cpufreq_frequency_table_put_attr()

Drivers which have an exit path must call cpufreq_frequency_table_put_attr() if
they have called cpufreq_frequency_table_get_attr() in their init path.

This driver was missing this part and is fixed with this patch.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/arm_big_little.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index 507027388ae3..9acfb82c1cfb 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -198,6 +198,7 @@ static int bL_cpufreq_exit(struct cpufreq_policy *policy)
 		return -ENODEV;
 	}
 
+	cpufreq_frequency_table_put_attr(policy->cpu);
 	put_cluster_clk_and_freq_table(cpu_dev);
 	dev_dbg(cpu_dev, "%s: Exited, cpu: %d\n", __func__, policy->cpu);
 
-- 
cgit 


From 52bcd9986ae6adc69b5e986c09da6fede8ed8119 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:43 +0530
Subject: cpufreq: blackfin: call cpufreq_frequency_table_put_attr()

Drivers which have an exit path must call cpufreq_frequency_table_put_attr() if
they have called cpufreq_frequency_table_get_attr() in their init path.

This driver was missing this part and is fixed with this patch.

Cc: Steven Miao <realmz6@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/blackfin-cpufreq.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/cpufreq/blackfin-cpufreq.c b/drivers/cpufreq/blackfin-cpufreq.c
index 54c0a0c20752..0e76c09552b9 100644
--- a/drivers/cpufreq/blackfin-cpufreq.c
+++ b/drivers/cpufreq/blackfin-cpufreq.c
@@ -213,6 +213,13 @@ static int __bfin_cpu_init(struct cpufreq_policy *policy)
 	return cpufreq_table_validate_and_show(policy, bfin_freq_table);
 }
 
+static int __bfin_cpu_exit(struct cpufreq_policy *policy)
+{
+
+	cpufreq_frequency_table_put_attr(policy->cpu);
+	return 0;
+}
+
 static struct freq_attr *bfin_freq_attr[] = {
 	&cpufreq_freq_attr_scaling_available_freqs,
 	NULL,
@@ -223,6 +230,7 @@ static struct cpufreq_driver bfin_driver = {
 	.target = bfin_target,
 	.get = bfin_getfreq_khz,
 	.init = __bfin_cpu_init,
+	.exit = __bfin_cpu_exit,
 	.name = "bfin cpufreq",
 	.attr = bfin_freq_attr,
 };
-- 
cgit 


From 724b9ea0e2ebdef35c05fb19ab3690edf52d8708 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:44 +0530
Subject: cpufreq: exynos: call cpufreq_frequency_table_put_attr()

Drivers which have an exit path must call cpufreq_frequency_table_put_attr() if
they have called cpufreq_frequency_table_get_attr() in their init path.

This driver was missing this part and is fixed with this patch.

Acked-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/exynos5440-cpufreq.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c
index b62967148c80..24df155f871e 100644
--- a/drivers/cpufreq/exynos5440-cpufreq.c
+++ b/drivers/cpufreq/exynos5440-cpufreq.c
@@ -339,12 +339,19 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	return 0;
 }
 
+static int exynos_cpufreq_cpu_exit(struct cpufreq_policy *policy)
+{
+	cpufreq_frequency_table_put_attr(policy->cpu);
+	return 0;
+}
+
 static struct cpufreq_driver exynos_driver = {
 	.flags		= CPUFREQ_STICKY,
 	.verify		= exynos_verify_speed,
 	.target		= exynos_target,
 	.get		= exynos_getspeed,
 	.init		= exynos_cpufreq_cpu_init,
+	.exit		= exynos_cpufreq_cpu_exit,
 	.name		= CPUFREQ_NAME,
 };
 
-- 
cgit 


From 999fe7951a49fa885f52df85c4f91c913858a232 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:45 +0530
Subject: cpufreq: loongson2: call cpufreq_frequency_table_put_attr()

Drivers which have an exit path must call cpufreq_frequency_table_put_attr() if
they have called cpufreq_frequency_table_get_attr() in their init path.

This driver was missing this part and is fixed with this patch.

Cc: John Crispin <blogic@openwrt.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/loongson2_cpufreq.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c
index 5dd3692441f7..cec4e723d61b 100644
--- a/drivers/cpufreq/loongson2_cpufreq.c
+++ b/drivers/cpufreq/loongson2_cpufreq.c
@@ -145,6 +145,7 @@ static int loongson2_cpufreq_verify(struct cpufreq_policy *policy)
 
 static int loongson2_cpufreq_exit(struct cpufreq_policy *policy)
 {
+	cpufreq_frequency_table_put_attr(policy->cpu);
 	clk_put(cpuclk);
 	return 0;
 }
-- 
cgit 


From 42a4df0026b36d2a8fcfb6a3e79a3d0e1b05714d Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Mon, 16 Sep 2013 18:56:46 +0530
Subject: cpufreq: omap: call cpufreq_frequency_table_put_attr()

Drivers which have an exit path must call cpufreq_frequency_table_put_attr() if
they have called cpufreq_frequency_table_get_attr() in their init path.

This driver was missing this part and is fixed with this patch.

Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/omap-cpufreq.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index b68ce4ed2948..091f23334337 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -221,6 +221,7 @@ fail_ck:
 
 static int omap_cpu_exit(struct cpufreq_policy *policy)
 {
+	cpufreq_frequency_table_put_attr(policy->cpu);
 	freq_table_free();
 	clk_put(mpu_clk);
 	return 0;
-- 
cgit 


From 766a8a6dd89268107df1f6783f6a6338efcbf07e Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Fri, 13 Sep 2013 18:15:46 +0300
Subject: ACPI / thermal: convert printk(LEVEL...) to pr_<lvl>

Convert printks to pr_* format. Additionally re-use PREFIX constant instead of
hardcoded strings.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/thermal.c | 43 ++++++++++++++++++++-----------------------
 1 file changed, 20 insertions(+), 23 deletions(-)

diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 6a0329340b42..e600b5dbfcb6 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -299,8 +299,8 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
 			ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 					  "No critical threshold\n"));
 		} else if (tmp <= 2732) {
-			printk(KERN_WARNING FW_BUG "Invalid critical threshold "
-			       "(%llu)\n", tmp);
+			pr_warn(FW_BUG "Invalid critical threshold (%llu)\n",
+				tmp);
 			tz->trips.critical.flags.valid = 0;
 		} else {
 			tz->trips.critical.flags.valid = 1;
@@ -317,8 +317,8 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
 				 * Allow override critical threshold
 				 */
 				if (crt_k > tz->trips.critical.temperature)
-					printk(KERN_WARNING PREFIX
-						"Critical threshold %d C\n", crt);
+					pr_warn(PREFIX "Critical threshold %d C\n",
+						crt);
 				tz->trips.critical.temperature = crt_k;
 			}
 		}
@@ -390,8 +390,7 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
 		status = acpi_evaluate_reference(tz->device->handle, "_PSL",
 							NULL, &devices);
 		if (ACPI_FAILURE(status)) {
-			printk(KERN_WARNING PREFIX
-				"Invalid passive threshold\n");
+			pr_warn(PREFIX "Invalid passive threshold\n");
 			tz->trips.passive.flags.valid = 0;
 		}
 		else
@@ -453,8 +452,8 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
 			status = acpi_evaluate_reference(tz->device->handle,
 						name, NULL, &devices);
 			if (ACPI_FAILURE(status)) {
-				printk(KERN_WARNING PREFIX
-					"Invalid active%d threshold\n", i);
+				pr_warn(PREFIX "Invalid active%d threshold\n",
+					i);
 				tz->trips.active[i].flags.valid = 0;
 			}
 			else
@@ -505,7 +504,7 @@ static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
 		valid |= tz->trips.active[i].flags.valid;
 
 	if (!valid) {
-		printk(KERN_WARNING FW_BUG "No valid trip found\n");
+		pr_warn(FW_BUG "No valid trip found\n");
 		return -ENODEV;
 	}
 	return 0;
@@ -923,8 +922,7 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
 				  acpi_bus_private_data_handler,
 				  tz->thermal_zone);
 	if (ACPI_FAILURE(status)) {
-		printk(KERN_ERR PREFIX
-				"Error attaching device data\n");
+		pr_err(PREFIX "Error attaching device data\n");
 		return -ENODEV;
 	}
 
@@ -1094,9 +1092,8 @@ static int acpi_thermal_add(struct acpi_device *device)
 	if (result)
 		goto free_memory;
 
-	printk(KERN_INFO PREFIX "%s [%s] (%ld C)\n",
-	       acpi_device_name(device), acpi_device_bid(device),
-	       KELVIN_TO_CELSIUS(tz->temperature));
+	pr_info(PREFIX "%s [%s] (%ld C)\n", acpi_device_name(device),
+		acpi_device_bid(device), KELVIN_TO_CELSIUS(tz->temperature));
 	goto end;
 
 free_memory:
@@ -1159,24 +1156,24 @@ static int acpi_thermal_resume(struct device *dev)
 static int thermal_act(const struct dmi_system_id *d) {
 
 	if (act == 0) {
-		printk(KERN_NOTICE "ACPI: %s detected: "
-			"disabling all active thermal trip points\n", d->ident);
+		pr_notice(PREFIX "%s detected: "
+			  "disabling all active thermal trip points\n", d->ident);
 		act = -1;
 	}
 	return 0;
 }
 static int thermal_nocrt(const struct dmi_system_id *d) {
 
-	printk(KERN_NOTICE "ACPI: %s detected: "
-		"disabling all critical thermal trip point actions.\n", d->ident);
+	pr_notice(PREFIX "%s detected: "
+		  "disabling all critical thermal trip point actions.\n", d->ident);
 	nocrt = 1;
 	return 0;
 }
 static int thermal_tzp(const struct dmi_system_id *d) {
 
 	if (tzp == 0) {
-		printk(KERN_NOTICE "ACPI: %s detected: "
-			"enabling thermal zone polling\n", d->ident);
+		pr_notice(PREFIX "%s detected: "
+			  "enabling thermal zone polling\n", d->ident);
 		tzp = 300;	/* 300 dS = 30 Seconds */
 	}
 	return 0;
@@ -1184,8 +1181,8 @@ static int thermal_tzp(const struct dmi_system_id *d) {
 static int thermal_psv(const struct dmi_system_id *d) {
 
 	if (psv == 0) {
-		printk(KERN_NOTICE "ACPI: %s detected: "
-			"disabling all passive thermal trip points\n", d->ident);
+		pr_notice(PREFIX "%s detected: "
+			  "disabling all passive thermal trip points\n", d->ident);
 		psv = -1;
 	}
 	return 0;
@@ -1238,7 +1235,7 @@ static int __init acpi_thermal_init(void)
 	dmi_check_system(thermal_dmi_table);
 
 	if (off) {
-		printk(KERN_NOTICE "ACPI: thermal control disabled\n");
+		pr_notice(PREFIX "thermal control disabled\n");
 		return -ENODEV;
 	}
 
-- 
cgit 


From dd96dc32d59bdf620670a4a527ed9916796f654e Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Mon, 30 Sep 2013 17:29:43 +0200
Subject: x86 / ACPI: fix incorrect placement of __initdata tag

__initdata tag should not be placed between "struct" and "resource"
because it prevents the variable from being placed in the intended
.init.data section. Fix it.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/x86/kernel/acpi/boot.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index 40c76604199f..d00db60a5e04 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -745,7 +745,7 @@ static int __init acpi_parse_sbf(struct acpi_table_header *table)
 #ifdef CONFIG_HPET_TIMER
 #include <asm/hpet.h>
 
-static struct __initdata resource *hpet_res;
+static struct resource *hpet_res __initdata;
 
 static int __init acpi_parse_hpet(struct acpi_table_header *table)
 {
-- 
cgit 


From 905468fa4d54c3e572ed3045cd47cce37780716e Mon Sep 17 00:00:00 2001
From: Fabio Porcedda <fabio.porcedda@gmail.com>
Date: Wed, 25 Sep 2013 11:21:25 +0200
Subject: net: qmi_wwan: add Telit LE920 newer firmware support
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Newer firmware use a new pid and a different interface.

Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/qmi_wwan.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 6312332afeba..5f6b6fa508df 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -714,6 +714,7 @@ static const struct usb_device_id products[] = {
 	{QMI_FIXED_INTF(0x2357, 0x0201, 4)},	/* TP-LINK HSUPA Modem MA180 */
 	{QMI_FIXED_INTF(0x2357, 0x9000, 4)},	/* TP-LINK MA260 */
 	{QMI_FIXED_INTF(0x1bc7, 0x1200, 5)},	/* Telit LE920 */
+	{QMI_FIXED_INTF(0x1bc7, 0x1201, 2)},	/* Telit LE920 */
 	{QMI_FIXED_INTF(0x1e2d, 0x12d1, 4)},	/* Cinterion PLxx */
 
 	/* 4. Gobi 1000 devices */
-- 
cgit 


From e05849512662e789232dafed71ba65729f101e70 Mon Sep 17 00:00:00 2001
From: Fabio Porcedda <fabio.porcedda@gmail.com>
Date: Wed, 25 Sep 2013 11:21:26 +0200
Subject: net: qmi_wwan: fix checkpatch warnings

Signed-off-by: Fabio Porcedda <fabio.porcedda@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/qmi_wwan.c | 56 +++++++++++++++++++++++++++++-----------------
 1 file changed, 36 insertions(+), 20 deletions(-)

diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 5f6b6fa508df..0e59f9e4498b 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -143,16 +143,22 @@ static const struct net_device_ops qmi_wwan_netdev_ops = {
 	.ndo_validate_addr	= eth_validate_addr,
 };
 
-/* using a counter to merge subdriver requests with our own into a combined state */
+/* using a counter to merge subdriver requests with our own into a
+ * combined state
+ */
 static int qmi_wwan_manage_power(struct usbnet *dev, int on)
 {
 	struct qmi_wwan_state *info = (void *)&dev->data;
 	int rv = 0;
 
-	dev_dbg(&dev->intf->dev, "%s() pmcount=%d, on=%d\n", __func__, atomic_read(&info->pmcount), on);
+	dev_dbg(&dev->intf->dev, "%s() pmcount=%d, on=%d\n", __func__,
+		atomic_read(&info->pmcount), on);
 
-	if ((on && atomic_add_return(1, &info->pmcount) == 1) || (!on && atomic_dec_and_test(&info->pmcount))) {
-		/* need autopm_get/put here to ensure the usbcore sees the new value */
+	if ((on && atomic_add_return(1, &info->pmcount) == 1) ||
+	    (!on && atomic_dec_and_test(&info->pmcount))) {
+		/* need autopm_get/put here to ensure the usbcore sees
+		 * the new value
+		 */
 		rv = usb_autopm_get_interface(dev->intf);
 		if (rv < 0)
 			goto err;
@@ -199,7 +205,8 @@ static int qmi_wwan_register_subdriver(struct usbnet *dev)
 	atomic_set(&info->pmcount, 0);
 
 	/* register subdriver */
-	subdriver = usb_cdc_wdm_register(info->control, &dev->status->desc, 4096, &qmi_wwan_cdc_wdm_manage_power);
+	subdriver = usb_cdc_wdm_register(info->control, &dev->status->desc,
+					 4096, &qmi_wwan_cdc_wdm_manage_power);
 	if (IS_ERR(subdriver)) {
 		dev_err(&info->control->dev, "subdriver registration failed\n");
 		rv = PTR_ERR(subdriver);
@@ -228,7 +235,8 @@ static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
 	struct usb_driver *driver = driver_of(intf);
 	struct qmi_wwan_state *info = (void *)&dev->data;
 
-	BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) < sizeof(struct qmi_wwan_state)));
+	BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data) <
+		      sizeof(struct qmi_wwan_state)));
 
 	/* set up initial state */
 	info->control = intf;
@@ -250,7 +258,8 @@ static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
 				goto err;
 			}
 			if (h->bLength != sizeof(struct usb_cdc_header_desc)) {
-				dev_dbg(&intf->dev, "CDC header len %u\n", h->bLength);
+				dev_dbg(&intf->dev, "CDC header len %u\n",
+					h->bLength);
 				goto err;
 			}
 			break;
@@ -260,7 +269,8 @@ static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
 				goto err;
 			}
 			if (h->bLength != sizeof(struct usb_cdc_union_desc)) {
-				dev_dbg(&intf->dev, "CDC union len %u\n", h->bLength);
+				dev_dbg(&intf->dev, "CDC union len %u\n",
+					h->bLength);
 				goto err;
 			}
 			cdc_union = (struct usb_cdc_union_desc *)buf;
@@ -271,15 +281,15 @@ static int qmi_wwan_bind(struct usbnet *dev, struct usb_interface *intf)
 				goto err;
 			}
 			if (h->bLength != sizeof(struct usb_cdc_ether_desc)) {
-				dev_dbg(&intf->dev, "CDC ether len %u\n",  h->bLength);
+				dev_dbg(&intf->dev, "CDC ether len %u\n",
+					h->bLength);
 				goto err;
 			}
 			cdc_ether = (struct usb_cdc_ether_desc *)buf;
 			break;
 		}
 
-		/*
-		 * Remember which CDC functional descriptors we've seen.  Works
+		/* Remember which CDC functional descriptors we've seen.  Works
 		 * for all types we care about, of which USB_CDC_ETHERNET_TYPE
 		 * (0x0f) is the highest numbered
 		 */
@@ -293,10 +303,14 @@ next_desc:
 
 	/* Use separate control and data interfaces if we found a CDC Union */
 	if (cdc_union) {
-		info->data = usb_ifnum_to_if(dev->udev, cdc_union->bSlaveInterface0);
-		if (desc->bInterfaceNumber != cdc_union->bMasterInterface0 || !info->data) {
-			dev_err(&intf->dev, "bogus CDC Union: master=%u, slave=%u\n",
-				cdc_union->bMasterInterface0, cdc_union->bSlaveInterface0);
+		info->data = usb_ifnum_to_if(dev->udev,
+					     cdc_union->bSlaveInterface0);
+		if (desc->bInterfaceNumber != cdc_union->bMasterInterface0 ||
+		    !info->data) {
+			dev_err(&intf->dev,
+				"bogus CDC Union: master=%u, slave=%u\n",
+				cdc_union->bMasterInterface0,
+				cdc_union->bSlaveInterface0);
 			goto err;
 		}
 	}
@@ -374,8 +388,7 @@ static int qmi_wwan_suspend(struct usb_interface *intf, pm_message_t message)
 	struct qmi_wwan_state *info = (void *)&dev->data;
 	int ret;
 
-	/*
-	 * Both usbnet_suspend() and subdriver->suspend() MUST return 0
+	/* Both usbnet_suspend() and subdriver->suspend() MUST return 0
 	 * in system sleep context, otherwise, the resume callback has
 	 * to recover device from previous suspend failure.
 	 */
@@ -383,7 +396,8 @@ static int qmi_wwan_suspend(struct usb_interface *intf, pm_message_t message)
 	if (ret < 0)
 		goto err;
 
-	if (intf == info->control && info->subdriver && info->subdriver->suspend)
+	if (intf == info->control && info->subdriver &&
+	    info->subdriver->suspend)
 		ret = info->subdriver->suspend(intf, message);
 	if (ret < 0)
 		usbnet_resume(intf);
@@ -396,7 +410,8 @@ static int qmi_wwan_resume(struct usb_interface *intf)
 	struct usbnet *dev = usb_get_intfdata(intf);
 	struct qmi_wwan_state *info = (void *)&dev->data;
 	int ret = 0;
-	bool callsub = (intf == info->control && info->subdriver && info->subdriver->resume);
+	bool callsub = (intf == info->control && info->subdriver &&
+			info->subdriver->resume);
 
 	if (callsub)
 		ret = info->subdriver->resume(intf);
@@ -777,7 +792,8 @@ static const struct usb_device_id products[] = {
 };
 MODULE_DEVICE_TABLE(usb, products);
 
-static int qmi_wwan_probe(struct usb_interface *intf, const struct usb_device_id *prod)
+static int qmi_wwan_probe(struct usb_interface *intf,
+			  const struct usb_device_id *prod)
 {
 	struct usb_device_id *id = (struct usb_device_id *)prod;
 
-- 
cgit 


From 365279167c1ee54c8f4c7cf77752433a3e41b30b Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Fri, 27 Sep 2013 19:54:55 +0300
Subject: ath10k: rename board_data in struct ath10k

I will use board_data for something else in the following patch
so I need to rename it.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.c | 18 +++++++++---------
 drivers/net/wireless/ath/ath10k/core.h |  2 +-
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index bd74dacad1ed..494b4c795245 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -215,7 +215,7 @@ static int ath10k_push_board_ext_data(struct ath10k *ar,
 
 static int ath10k_download_board_data(struct ath10k *ar)
 {
-	const struct firmware *fw = ar->board_data;
+	const struct firmware *fw = ar->board;
 	u32 board_data_size = QCA988X_BOARD_DATA_SZ;
 	u32 address;
 	int ret;
@@ -298,8 +298,8 @@ exit:
 
 static void ath10k_core_free_firmware_files(struct ath10k *ar)
 {
-	if (ar->board_data && !IS_ERR(ar->board_data))
-		release_firmware(ar->board_data);
+	if (ar->board && !IS_ERR(ar->board))
+		release_firmware(ar->board);
 
 	if (ar->otp && !IS_ERR(ar->otp))
 		release_firmware(ar->otp);
@@ -307,7 +307,7 @@ static void ath10k_core_free_firmware_files(struct ath10k *ar)
 	if (ar->firmware && !IS_ERR(ar->firmware))
 		release_firmware(ar->firmware);
 
-	ar->board_data = NULL;
+	ar->board = NULL;
 	ar->otp = NULL;
 	ar->firmware = NULL;
 }
@@ -326,11 +326,11 @@ static int ath10k_core_fetch_firmware_files(struct ath10k *ar)
 		return -EINVAL;
 	}
 
-	ar->board_data = ath10k_fetch_fw_file(ar,
-					      ar->hw_params.fw.dir,
-					      ar->hw_params.fw.board);
-	if (IS_ERR(ar->board_data)) {
-		ret = PTR_ERR(ar->board_data);
+	ar->board = ath10k_fetch_fw_file(ar,
+					 ar->hw_params.fw.dir,
+					 ar->hw_params.fw.board);
+	if (IS_ERR(ar->board)) {
+		ret = PTR_ERR(ar->board);
 		ath10k_err("could not fetch board data (%d)\n", ret);
 		goto err;
 	}
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index d5da8a9f6974..90d93994b311 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -347,7 +347,7 @@ struct ath10k {
 		} fw;
 	} hw_params;
 
-	const struct firmware *board_data;
+	const struct firmware *board;
 	const struct firmware *otp;
 	const struct firmware *firmware;
 
-- 
cgit 


From 958df3a00adb5347a11ef3e11274586e71d3d75b Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Fri, 27 Sep 2013 19:55:01 +0300
Subject: ath10k: store separate pointers for firmware data

Needed for firmware IE formatted images.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.c | 43 +++++++++++++++++++++++-----------
 drivers/net/wireless/ath/ath10k/core.h |  8 +++++++
 2 files changed, 37 insertions(+), 14 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 494b4c795245..b8f72f2c34e8 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -168,8 +168,7 @@ static const struct firmware *ath10k_fetch_fw_file(struct ath10k *ar,
 	return fw;
 }
 
-static int ath10k_push_board_ext_data(struct ath10k *ar,
-				      const struct firmware *fw)
+static int ath10k_push_board_ext_data(struct ath10k *ar)
 {
 	u32 board_data_size = QCA988X_BOARD_DATA_SZ;
 	u32 board_ext_data_size = QCA988X_BOARD_EXT_DATA_SZ;
@@ -189,14 +188,14 @@ static int ath10k_push_board_ext_data(struct ath10k *ar,
 	if (board_ext_data_addr == 0)
 		return 0;
 
-	if (fw->size != (board_data_size + board_ext_data_size)) {
+	if (ar->board_len != (board_data_size + board_ext_data_size)) {
 		ath10k_err("invalid board (ext) data sizes %zu != %d+%d\n",
-			   fw->size, board_data_size, board_ext_data_size);
+			   ar->board_len, board_data_size, board_ext_data_size);
 		return -EINVAL;
 	}
 
 	ret = ath10k_bmi_write_memory(ar, board_ext_data_addr,
-				      fw->data + board_data_size,
+				      ar->board_data + board_data_size,
 				      board_ext_data_size);
 	if (ret) {
 		ath10k_err("could not write board ext data (%d)\n", ret);
@@ -215,12 +214,11 @@ static int ath10k_push_board_ext_data(struct ath10k *ar,
 
 static int ath10k_download_board_data(struct ath10k *ar)
 {
-	const struct firmware *fw = ar->board;
 	u32 board_data_size = QCA988X_BOARD_DATA_SZ;
 	u32 address;
 	int ret;
 
-	ret = ath10k_push_board_ext_data(ar, fw);
+	ret = ath10k_push_board_ext_data(ar);
 	if (ret) {
 		ath10k_err("could not push board ext data (%d)\n", ret);
 		goto exit;
@@ -232,8 +230,9 @@ static int ath10k_download_board_data(struct ath10k *ar)
 		goto exit;
 	}
 
-	ret = ath10k_bmi_write_memory(ar, address, fw->data,
-				      min_t(u32, board_data_size, fw->size));
+	ret = ath10k_bmi_write_memory(ar, address, ar->board_data,
+				      min_t(u32, board_data_size,
+					    ar->board_len));
 	if (ret) {
 		ath10k_err("could not write board data (%d)\n", ret);
 		goto exit;
@@ -251,17 +250,16 @@ exit:
 
 static int ath10k_download_and_run_otp(struct ath10k *ar)
 {
-	const struct firmware *fw = ar->otp;
 	u32 address = ar->hw_params.patch_load_addr;
 	u32 exec_param;
 	int ret;
 
 	/* OTP is optional */
 
-	if (!ar->otp)
+	if (!ar->otp_data || !ar->otp_len)
 		return 0;
 
-	ret = ath10k_bmi_fast_download(ar, address, fw->data, fw->size);
+	ret = ath10k_bmi_fast_download(ar, address, ar->otp_data, ar->otp_len);
 	if (ret) {
 		ath10k_err("could not write otp (%d)\n", ret);
 		goto exit;
@@ -280,13 +278,13 @@ exit:
 
 static int ath10k_download_fw(struct ath10k *ar)
 {
-	const struct firmware *fw = ar->firmware;
 	u32 address;
 	int ret;
 
 	address = ar->hw_params.patch_load_addr;
 
-	ret = ath10k_bmi_fast_download(ar, address, fw->data, fw->size);
+	ret = ath10k_bmi_fast_download(ar, address, ar->firmware_data,
+				       ar->firmware_len);
 	if (ret) {
 		ath10k_err("could not write fw (%d)\n", ret);
 		goto exit;
@@ -308,8 +306,16 @@ static void ath10k_core_free_firmware_files(struct ath10k *ar)
 		release_firmware(ar->firmware);
 
 	ar->board = NULL;
+	ar->board_data = NULL;
+	ar->board_len = 0;
+
 	ar->otp = NULL;
+	ar->otp_data = NULL;
+	ar->otp_len = 0;
+
 	ar->firmware = NULL;
+	ar->firmware_data = NULL;
+	ar->firmware_len = 0;
 }
 
 static int ath10k_core_fetch_firmware_files(struct ath10k *ar)
@@ -335,6 +341,9 @@ static int ath10k_core_fetch_firmware_files(struct ath10k *ar)
 		goto err;
 	}
 
+	ar->board_data = ar->board->data;
+	ar->board_len = ar->board->size;
+
 	ar->firmware = ath10k_fetch_fw_file(ar,
 					    ar->hw_params.fw.dir,
 					    ar->hw_params.fw.fw);
@@ -344,6 +353,9 @@ static int ath10k_core_fetch_firmware_files(struct ath10k *ar)
 		goto err;
 	}
 
+	ar->firmware_data = ar->firmware->data;
+	ar->firmware_len = ar->firmware->size;
+
 	/* OTP may be undefined. If so, don't fetch it at all */
 	if (ar->hw_params.fw.otp == NULL)
 		return 0;
@@ -357,6 +369,9 @@ static int ath10k_core_fetch_firmware_files(struct ath10k *ar)
 		goto err;
 	}
 
+	ar->otp_data = ar->otp->data;
+	ar->otp_len = ar->otp->size;
+
 	return 0;
 
 err:
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 90d93994b311..0c0b229735aa 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -348,8 +348,16 @@ struct ath10k {
 	} hw_params;
 
 	const struct firmware *board;
+	const void *board_data;
+	size_t board_len;
+
 	const struct firmware *otp;
+	const void *otp_data;
+	size_t otp_len;
+
 	const struct firmware *firmware;
+	const void *firmware_data;
+	size_t firmware_len;
 
 	struct {
 		struct completion started;
-- 
cgit 


From 1a222435a1b0ed2f87f4752abdf03065b574dfac Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Fri, 27 Sep 2013 19:55:07 +0300
Subject: ath10k: implement firmware IE container support

Firmware IE containers can dynamically provide various information what
firmware supports. Also it can embed more than one image so updating firmware
is easy, user just needs to update one file in /lib/firmware/.

The firmware API 2 or higher will use the IE container format, the current API
1 will not use the new format but it still is supported for some time. FW API 2
files are named as firmware-2.bin (which contains both firmware and otp images)
and API 1 files are firmware.bin and otp.bin.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.c | 184 ++++++++++++++++++++++++++++++++-
 drivers/net/wireless/ath/ath10k/core.h |   2 +
 drivers/net/wireless/ath/ath10k/hw.h   |  19 ++++
 drivers/net/wireless/ath/ath10k/wmi.c  |   3 +-
 4 files changed, 206 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index b8f72f2c34e8..7b5dd09fab67 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -318,7 +318,7 @@ static void ath10k_core_free_firmware_files(struct ath10k *ar)
 	ar->firmware_len = 0;
 }
 
-static int ath10k_core_fetch_firmware_files(struct ath10k *ar)
+static int ath10k_core_fetch_firmware_api_1(struct ath10k *ar)
 {
 	int ret = 0;
 
@@ -379,6 +379,188 @@ err:
 	return ret;
 }
 
+static int ath10k_core_fetch_firmware_api_n(struct ath10k *ar, const char *name)
+{
+	size_t magic_len, len, ie_len;
+	int ie_id, i, index, bit, ret;
+	struct ath10k_fw_ie *hdr;
+	const u8 *data;
+	__le32 *timestamp;
+
+	/* first fetch the firmware file (firmware-*.bin) */
+	ar->firmware = ath10k_fetch_fw_file(ar, ar->hw_params.fw.dir, name);
+	if (IS_ERR(ar->firmware)) {
+		ath10k_err("Could not fetch firmware file '%s': %ld\n",
+			   name, PTR_ERR(ar->firmware));
+		return PTR_ERR(ar->firmware);
+	}
+
+	data = ar->firmware->data;
+	len = ar->firmware->size;
+
+	/* magic also includes the null byte, check that as well */
+	magic_len = strlen(ATH10K_FIRMWARE_MAGIC) + 1;
+
+	if (len < magic_len) {
+		ath10k_err("firmware image too small to contain magic: %d\n",
+			   len);
+		return -EINVAL;
+	}
+
+	if (memcmp(data, ATH10K_FIRMWARE_MAGIC, magic_len) != 0) {
+		ath10k_err("Invalid firmware magic\n");
+		return -EINVAL;
+	}
+
+	/* jump over the padding */
+	magic_len = ALIGN(magic_len, 4);
+
+	len -= magic_len;
+	data += magic_len;
+
+	/* loop elements */
+	while (len > sizeof(struct ath10k_fw_ie)) {
+		hdr = (struct ath10k_fw_ie *)data;
+
+		ie_id = le32_to_cpu(hdr->id);
+		ie_len = le32_to_cpu(hdr->len);
+
+		len -= sizeof(*hdr);
+		data += sizeof(*hdr);
+
+		if (len < ie_len) {
+			ath10k_err("Invalid length for FW IE %d (%d < %d)\n",
+				   ie_id, len, ie_len);
+			return -EINVAL;
+		}
+
+		switch (ie_id) {
+		case ATH10K_FW_IE_FW_VERSION:
+			if (ie_len > sizeof(ar->hw->wiphy->fw_version) - 1)
+				break;
+
+			memcpy(ar->hw->wiphy->fw_version, data, ie_len);
+			ar->hw->wiphy->fw_version[ie_len] = '\0';
+
+			ath10k_dbg(ATH10K_DBG_BOOT,
+				   "found fw version %s\n",
+				    ar->hw->wiphy->fw_version);
+			break;
+		case ATH10K_FW_IE_TIMESTAMP:
+			if (ie_len != sizeof(u32))
+				break;
+
+			timestamp = (__le32 *)data;
+
+			ath10k_dbg(ATH10K_DBG_BOOT, "found fw timestamp %d\n",
+				   le32_to_cpup(timestamp));
+			break;
+		case ATH10K_FW_IE_FEATURES:
+			ath10k_dbg(ATH10K_DBG_BOOT,
+				   "found firmware features ie (%zd B)\n",
+				   ie_len);
+
+			for (i = 0; i < ATH10K_FW_FEATURE_COUNT; i++) {
+				index = i / 8;
+				bit = i % 8;
+
+				if (index == ie_len)
+					break;
+
+				if (data[index] & (1 << bit))
+					__set_bit(i, ar->fw_features);
+			}
+
+			ath10k_dbg_dump(ATH10K_DBG_BOOT, "features", "",
+					ar->fw_features,
+					sizeof(ar->fw_features));
+			break;
+		case ATH10K_FW_IE_FW_IMAGE:
+			ath10k_dbg(ATH10K_DBG_BOOT,
+				   "found fw image ie (%zd B)\n",
+				   ie_len);
+
+			ar->firmware_data = data;
+			ar->firmware_len = ie_len;
+
+			break;
+		case ATH10K_FW_IE_OTP_IMAGE:
+			ath10k_dbg(ATH10K_DBG_BOOT,
+				   "found otp image ie (%zd B)\n",
+				   ie_len);
+
+			ar->otp_data = data;
+			ar->otp_len = ie_len;
+
+			break;
+		default:
+			ath10k_warn("Unknown FW IE: %u\n",
+				    le32_to_cpu(hdr->id));
+			break;
+		}
+
+		/* jump over the padding */
+		ie_len = ALIGN(ie_len, 4);
+
+		len -= ie_len;
+		data += ie_len;
+	};
+
+	if (!ar->firmware_data || !ar->firmware_len) {
+		ath10k_warn("No ATH10K_FW_IE_FW_IMAGE found from %s, skipping\n",
+			    name);
+		ret = -ENOMEDIUM;
+		goto err;
+	}
+
+	/* now fetch the board file */
+	if (ar->hw_params.fw.board == NULL) {
+		ath10k_err("board data file not defined");
+		ret = -EINVAL;
+		goto err;
+	}
+
+	ar->board = ath10k_fetch_fw_file(ar,
+					 ar->hw_params.fw.dir,
+					 ar->hw_params.fw.board);
+	if (IS_ERR(ar->board)) {
+		ret = PTR_ERR(ar->board);
+		ath10k_err("could not fetch board data (%d)\n", ret);
+		goto err;
+	}
+
+	ar->board_data = ar->board->data;
+	ar->board_len = ar->board->size;
+
+	return 0;
+
+err:
+	ath10k_core_free_firmware_files(ar);
+	return ret;
+}
+
+static int ath10k_core_fetch_firmware_files(struct ath10k *ar)
+{
+	int ret;
+
+	ret = ath10k_core_fetch_firmware_api_n(ar, ATH10K_FW_API2_FILE);
+	if (ret == 0) {
+		ar->fw_api = 2;
+		goto out;
+	}
+
+	ret = ath10k_core_fetch_firmware_api_1(ar);
+	if (ret)
+		return ret;
+
+	ar->fw_api = 1;
+
+out:
+	ath10k_dbg(ATH10K_DBG_BOOT, "using fw api %d\n", ar->fw_api);
+
+	return 0;
+}
+
 static int ath10k_init_download_firmware(struct ath10k *ar)
 {
 	int ret;
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index 0c0b229735aa..ce36daa5ff0a 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -359,6 +359,8 @@ struct ath10k {
 	const void *firmware_data;
 	size_t firmware_len;
 
+	int fw_api;
+
 	struct {
 		struct completion started;
 		struct completion completed;
diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
index 2de13db5e5de..3fd7b9864d18 100644
--- a/drivers/net/wireless/ath/ath10k/hw.h
+++ b/drivers/net/wireless/ath/ath10k/hw.h
@@ -32,6 +32,25 @@
 #define QCA988X_HW_2_0_BOARD_DATA_FILE	"board.bin"
 #define QCA988X_HW_2_0_PATCH_LOAD_ADDR	0x1234
 
+#define ATH10K_FW_API2_FILE		"firmware-2.bin"
+
+/* includes also the null byte */
+#define ATH10K_FIRMWARE_MAGIC               "QCA-ATH10K"
+
+struct ath10k_fw_ie {
+	__le32 id;
+	__le32 len;
+	u8 data[0];
+};
+
+enum ath10k_fw_ie_type {
+	ATH10K_FW_IE_FW_VERSION = 0,
+	ATH10K_FW_IE_TIMESTAMP = 1,
+	ATH10K_FW_IE_FEATURES = 2,
+	ATH10K_FW_IE_FW_IMAGE = 3,
+	ATH10K_FW_IE_OTP_IMAGE = 4,
+};
+
 /* Known pecularities:
  *  - current FW doesn't support raw rx mode (last tested v599)
  *  - current FW dumps upon raw tx mode (last tested v599)
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index e7dc911c2130..be75571d21a0 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -1559,7 +1559,8 @@ static void ath10k_wmi_service_ready_event_rx(struct ath10k *ar,
 	ar->phy_capability = __le32_to_cpu(ev->phy_capability);
 	ar->num_rf_chains = __le32_to_cpu(ev->num_rf_chains);
 
-	if (ar->fw_version_build > 636)
+	/* only manually set fw features when not using FW IE format */
+	if (ar->fw_api == 1 && ar->fw_version_build > 636)
 		set_bit(ATH10K_FW_FEATURE_EXT_WMI_MGMT_RX, ar->fw_features);
 
 	if (ar->num_rf_chains > WMI_MAX_SPATIAL_STREAM) {
-- 
cgit 


From a528c219df2e865e178c538c7178961dfed5a13c Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Wed, 25 Sep 2013 12:02:44 +0200
Subject: dev: update __dev_notify_flags() to send rtnl msg

This patch only prepares the next one, there is no functional change.
Now, __dev_notify_flags() can also be used to notify flags changes via
rtnetlink.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdevice.h |  4 +++-
 net/core/dev.c            | 11 ++++++-----
 net/core/rtnetlink.c      |  3 +--
 3 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index b4cfb63f264e..f44f99a69977 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2378,7 +2378,9 @@ extern int		dev_ethtool(struct net *net, struct ifreq *);
 extern unsigned int	dev_get_flags(const struct net_device *);
 extern int		__dev_change_flags(struct net_device *, unsigned int flags);
 extern int		dev_change_flags(struct net_device *, unsigned int);
-extern void		__dev_notify_flags(struct net_device *, unsigned int old_flags);
+void			__dev_notify_flags(struct net_device *,
+					   unsigned int old_flags,
+					   unsigned int gchanges);
 extern int		dev_change_name(struct net_device *, const char *);
 extern int		dev_set_alias(struct net_device *, const char *, size_t);
 extern int		dev_change_net_namespace(struct net_device *,
diff --git a/net/core/dev.c b/net/core/dev.c
index 25ab6fe80da2..594a6b0ab3da 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5235,10 +5235,14 @@ int __dev_change_flags(struct net_device *dev, unsigned int flags)
 	return ret;
 }
 
-void __dev_notify_flags(struct net_device *dev, unsigned int old_flags)
+void __dev_notify_flags(struct net_device *dev, unsigned int old_flags,
+			unsigned int gchanges)
 {
 	unsigned int changes = dev->flags ^ old_flags;
 
+	if (gchanges)
+		rtmsg_ifinfo(RTM_NEWLINK, dev, gchanges);
+
 	if (changes & IFF_UP) {
 		if (dev->flags & IFF_UP)
 			call_netdevice_notifiers(NETDEV_UP, dev);
@@ -5274,10 +5278,7 @@ int dev_change_flags(struct net_device *dev, unsigned int flags)
 		return ret;
 
 	changes = old_flags ^ dev->flags;
-	if (changes)
-		rtmsg_ifinfo(RTM_NEWLINK, dev, changes);
-
-	__dev_notify_flags(dev, old_flags);
+	__dev_notify_flags(dev, old_flags, changes);
 	return ret;
 }
 EXPORT_SYMBOL(dev_change_flags);
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 2a0e21de3060..4aedf03da052 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1647,9 +1647,8 @@ int rtnl_configure_link(struct net_device *dev, const struct ifinfomsg *ifm)
 	}
 
 	dev->rtnl_link_state = RTNL_LINK_INITIALIZED;
-	rtmsg_ifinfo(RTM_NEWLINK, dev, ~0U);
 
-	__dev_notify_flags(dev, old_flags);
+	__dev_notify_flags(dev, old_flags, ~0U);
 	return 0;
 }
 EXPORT_SYMBOL(rtnl_configure_link);
-- 
cgit 


From 991fb3f74c142e1a1891ff4f7e9a6285a79a8ea1 Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Wed, 25 Sep 2013 12:02:45 +0200
Subject: dev: always advertise rx_flags changes via netlink

When flags IFF_PROMISC and IFF_ALLMULTI are changed, netlink messages are not
consistent. For example, if a multicast daemon is running (flag IFF_ALLMULTI
set in dev->flags but not dev->gflags, ie not exported to userspace) and then a
user sets it via netlink (flag IFF_ALLMULTI set in dev->flags and dev->gflags, ie
exported to userspace), no netlink message is sent.
Same for IFF_PROMISC and because dev->promiscuity is exported via
IFLA_PROMISCUITY, we may send a netlink message after each change of this
counter.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/dev.c | 60 ++++++++++++++++++++++++++++++++++++----------------------
 1 file changed, 37 insertions(+), 23 deletions(-)

diff --git a/net/core/dev.c b/net/core/dev.c
index 594a6b0ab3da..81340ed7f0f4 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4988,7 +4988,7 @@ static void dev_change_rx_flags(struct net_device *dev, int flags)
 		ops->ndo_change_rx_flags(dev, flags);
 }
 
-static int __dev_set_promiscuity(struct net_device *dev, int inc)
+static int __dev_set_promiscuity(struct net_device *dev, int inc, bool notify)
 {
 	unsigned int old_flags = dev->flags;
 	kuid_t uid;
@@ -5031,6 +5031,8 @@ static int __dev_set_promiscuity(struct net_device *dev, int inc)
 
 		dev_change_rx_flags(dev, IFF_PROMISC);
 	}
+	if (notify)
+		__dev_notify_flags(dev, old_flags, IFF_PROMISC);
 	return 0;
 }
 
@@ -5050,7 +5052,7 @@ int dev_set_promiscuity(struct net_device *dev, int inc)
 	unsigned int old_flags = dev->flags;
 	int err;
 
-	err = __dev_set_promiscuity(dev, inc);
+	err = __dev_set_promiscuity(dev, inc, true);
 	if (err < 0)
 		return err;
 	if (dev->flags != old_flags)
@@ -5059,22 +5061,9 @@ int dev_set_promiscuity(struct net_device *dev, int inc)
 }
 EXPORT_SYMBOL(dev_set_promiscuity);
 
-/**
- *	dev_set_allmulti	- update allmulti count on a device
- *	@dev: device
- *	@inc: modifier
- *
- *	Add or remove reception of all multicast frames to a device. While the
- *	count in the device remains above zero the interface remains listening
- *	to all interfaces. Once it hits zero the device reverts back to normal
- *	filtering operation. A negative @inc value is used to drop the counter
- *	when releasing a resource needing all multicasts.
- *	Return 0 if successful or a negative errno code on error.
- */
-
-int dev_set_allmulti(struct net_device *dev, int inc)
+static int __dev_set_allmulti(struct net_device *dev, int inc, bool notify)
 {
-	unsigned int old_flags = dev->flags;
+	unsigned int old_flags = dev->flags, old_gflags = dev->gflags;
 
 	ASSERT_RTNL();
 
@@ -5097,9 +5086,30 @@ int dev_set_allmulti(struct net_device *dev, int inc)
 	if (dev->flags ^ old_flags) {
 		dev_change_rx_flags(dev, IFF_ALLMULTI);
 		dev_set_rx_mode(dev);
+		if (notify)
+			__dev_notify_flags(dev, old_flags,
+					   dev->gflags ^ old_gflags);
 	}
 	return 0;
 }
+
+/**
+ *	dev_set_allmulti	- update allmulti count on a device
+ *	@dev: device
+ *	@inc: modifier
+ *
+ *	Add or remove reception of all multicast frames to a device. While the
+ *	count in the device remains above zero the interface remains listening
+ *	to all interfaces. Once it hits zero the device reverts back to normal
+ *	filtering operation. A negative @inc value is used to drop the counter
+ *	when releasing a resource needing all multicasts.
+ *	Return 0 if successful or a negative errno code on error.
+ */
+
+int dev_set_allmulti(struct net_device *dev, int inc)
+{
+	return __dev_set_allmulti(dev, inc, true);
+}
 EXPORT_SYMBOL(dev_set_allmulti);
 
 /*
@@ -5124,10 +5134,10 @@ void __dev_set_rx_mode(struct net_device *dev)
 		 * therefore calling __dev_set_promiscuity here is safe.
 		 */
 		if (!netdev_uc_empty(dev) && !dev->uc_promisc) {
-			__dev_set_promiscuity(dev, 1);
+			__dev_set_promiscuity(dev, 1, false);
 			dev->uc_promisc = true;
 		} else if (netdev_uc_empty(dev) && dev->uc_promisc) {
-			__dev_set_promiscuity(dev, -1);
+			__dev_set_promiscuity(dev, -1, false);
 			dev->uc_promisc = false;
 		}
 	}
@@ -5216,9 +5226,13 @@ int __dev_change_flags(struct net_device *dev, unsigned int flags)
 
 	if ((flags ^ dev->gflags) & IFF_PROMISC) {
 		int inc = (flags & IFF_PROMISC) ? 1 : -1;
+		unsigned int old_flags = dev->flags;
 
 		dev->gflags ^= IFF_PROMISC;
-		dev_set_promiscuity(dev, inc);
+
+		if (__dev_set_promiscuity(dev, inc, false) >= 0)
+			if (dev->flags != old_flags)
+				dev_set_rx_mode(dev);
 	}
 
 	/* NOTE: order of synchronization of IFF_PROMISC and IFF_ALLMULTI
@@ -5229,7 +5243,7 @@ int __dev_change_flags(struct net_device *dev, unsigned int flags)
 		int inc = (flags & IFF_ALLMULTI) ? 1 : -1;
 
 		dev->gflags ^= IFF_ALLMULTI;
-		dev_set_allmulti(dev, inc);
+		__dev_set_allmulti(dev, inc, false);
 	}
 
 	return ret;
@@ -5271,13 +5285,13 @@ void __dev_notify_flags(struct net_device *dev, unsigned int old_flags,
 int dev_change_flags(struct net_device *dev, unsigned int flags)
 {
 	int ret;
-	unsigned int changes, old_flags = dev->flags;
+	unsigned int changes, old_flags = dev->flags, old_gflags = dev->gflags;
 
 	ret = __dev_change_flags(dev, flags);
 	if (ret < 0)
 		return ret;
 
-	changes = old_flags ^ dev->flags;
+	changes = (old_flags ^ dev->flags) | (old_gflags ^ dev->gflags);
 	__dev_notify_flags(dev, old_flags, changes);
 	return ret;
 }
-- 
cgit 


From 44a504c74ad338ccbbb9003f378d56576bdbf785 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Wed, 25 Sep 2013 20:17:45 +0200
Subject: hamradio: baycom: remove deprecated IRQF_DISABLED

This patch proposes to remove the IRQF_DISABLED flag
from drivers/net/hamradio/baycom_*

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/hamradio/baycom_ser_fdx.c | 2 +-
 drivers/net/hamradio/baycom_ser_hdx.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/hamradio/baycom_ser_fdx.c b/drivers/net/hamradio/baycom_ser_fdx.c
index a974727dd9a2..636b65c66d49 100644
--- a/drivers/net/hamradio/baycom_ser_fdx.c
+++ b/drivers/net/hamradio/baycom_ser_fdx.c
@@ -445,7 +445,7 @@ static int ser12_open(struct net_device *dev)
 	outb(0, FCR(dev->base_addr));  /* disable FIFOs */
 	outb(0x0d, MCR(dev->base_addr));
 	outb(0, IER(dev->base_addr));
-	if (request_irq(dev->irq, ser12_interrupt, IRQF_DISABLED | IRQF_SHARED,
+	if (request_irq(dev->irq, ser12_interrupt, IRQF_SHARED,
 			"baycom_ser_fdx", dev)) {
 		release_region(dev->base_addr, SER12_EXTENT);
 		return -EBUSY;
diff --git a/drivers/net/hamradio/baycom_ser_hdx.c b/drivers/net/hamradio/baycom_ser_hdx.c
index e349d867449b..f9a8976195ba 100644
--- a/drivers/net/hamradio/baycom_ser_hdx.c
+++ b/drivers/net/hamradio/baycom_ser_hdx.c
@@ -490,7 +490,7 @@ static int ser12_open(struct net_device *dev)
 	outb(0, FCR(dev->base_addr));  /* disable FIFOs */
 	outb(0x0d, MCR(dev->base_addr));
 	outb(0, IER(dev->base_addr));
-	if (request_irq(dev->irq, ser12_interrupt, IRQF_DISABLED | IRQF_SHARED,
+	if (request_irq(dev->irq, ser12_interrupt, IRQF_SHARED,
 			"baycom_ser12", dev)) {
 		release_region(dev->base_addr, SER12_EXTENT);       
 		return -EBUSY;
-- 
cgit 


From 122ebbf24c33ac13a9243248c9b8da0fa4c012bd Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Sat, 27 Apr 2013 21:02:59 +0200
Subject: netfilter: ipset: Don't call ip_nest_end needlessly in the error path

Suggested-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 net/netfilter/ipset/ip_set_bitmap_gen.h | 2 +-
 net/netfilter/ipset/ip_set_hash_gen.h   | 2 +-
 net/netfilter/ipset/ip_set_list_set.c   | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/netfilter/ipset/ip_set_bitmap_gen.h b/net/netfilter/ipset/ip_set_bitmap_gen.h
index 25243379b887..f6af97cf8d3e 100644
--- a/net/netfilter/ipset/ip_set_bitmap_gen.h
+++ b/net/netfilter/ipset/ip_set_bitmap_gen.h
@@ -228,11 +228,11 @@ mtype_list(const struct ip_set *set,
 
 nla_put_failure:
 	nla_nest_cancel(skb, nested);
-	ipset_nest_end(skb, adt);
 	if (unlikely(id == first)) {
 		cb->args[2] = 0;
 		return -EMSGSIZE;
 	}
+	ipset_nest_end(skb, adt);
 	return 0;
 }
 
diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index 707bc520d629..7ff20ecbe185 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -909,13 +909,13 @@ mtype_list(const struct ip_set *set,
 
 nla_put_failure:
 	nlmsg_trim(skb, incomplete);
-	ipset_nest_end(skb, atd);
 	if (unlikely(first == cb->args[2])) {
 		pr_warning("Can't list set %s: one bucket does not fit into "
 			   "a message. Please report it!\n", set->name);
 		cb->args[2] = 0;
 		return -EMSGSIZE;
 	}
+	ipset_nest_end(skb, atd);
 	return 0;
 }
 
diff --git a/net/netfilter/ipset/ip_set_list_set.c b/net/netfilter/ipset/ip_set_list_set.c
index 979b8c90e422..68299ee15847 100644
--- a/net/netfilter/ipset/ip_set_list_set.c
+++ b/net/netfilter/ipset/ip_set_list_set.c
@@ -550,11 +550,11 @@ finish:
 
 nla_put_failure:
 	nla_nest_cancel(skb, nested);
-	ipset_nest_end(skb, atd);
 	if (unlikely(i == first)) {
 		cb->args[2] = 0;
 		return -EMSGSIZE;
 	}
+	ipset_nest_end(skb, atd);
 	return 0;
 }
 
-- 
cgit 


From b3aabd149c201a7c2a5f9ee673376948ae0724d8 Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Tue, 30 Apr 2013 18:40:43 +0200
Subject: netfilter: ipset: Sparse warning about shadowed variable fixed

net/netfilter/ipset/ip_set_hash_ipportnet.c:275:20:
warning: symbol 'cidr' shadows an earlier one

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 net/netfilter/ipset/ip_set_hash_ipportnet.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/ipset/ip_set_hash_ipportnet.c b/net/netfilter/ipset/ip_set_hash_ipportnet.c
index f15f3e28b9c3..9a80d8bc9f18 100644
--- a/net/netfilter/ipset/ip_set_hash_ipportnet.c
+++ b/net/netfilter/ipset/ip_set_hash_ipportnet.c
@@ -272,7 +272,7 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
 		if (ip > ip_to)
 			swap(ip, ip_to);
 	} else if (tb[IPSET_ATTR_CIDR]) {
-		u8 cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
+		cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
 
 		if (!cidr || cidr > 32)
 			return -IPSET_ERR_INVALID_CIDR;
-- 
cgit 


From a0f28dc754bb6e78158eb41bf729342f7c2bcd70 Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Tue, 30 Apr 2013 21:23:18 +0200
Subject: netfilter: ipset: Fix sparse warnings due to missing rcu annotations

Reported-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 net/netfilter/ipset/ip_set_hash_gen.h | 87 ++++++++++++++++++++++-------------
 1 file changed, 55 insertions(+), 32 deletions(-)

diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index 7ff20ecbe185..09a21dd5f120 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -15,6 +15,8 @@
 #define rcu_dereference_bh(p)	rcu_dereference(p)
 #endif
 
+#define rcu_dereference_bh_nfnl(p)	rcu_dereference_bh_check(p, 1)
+
 #define CONCAT(a, b)		a##b
 #define TOKEN(a, b)		CONCAT(a, b)
 
@@ -269,7 +271,7 @@ hbucket_elem_add(struct hbucket *n, u8 ahash_max, size_t dsize)
 
 /* The generic hash structure */
 struct htype {
-	struct htable *table;	/* the hash table */
+	struct htable __rcu *table; /* the hash table */
 	u32 maxelem;		/* max elements in the hash */
 	u32 elements;		/* current element (vs timeout) */
 	u32 initval;		/* random jhash init value */
@@ -347,10 +349,10 @@ mtype_del_cidr(struct htype *h, u8 cidr, u8 nets_length)
 
 /* Calculate the actual memory size of the set data */
 static size_t
-mtype_ahash_memsize(const struct htype *h, u8 nets_length)
+mtype_ahash_memsize(const struct htype *h, const struct htable *t,
+		    u8 nets_length)
 {
 	u32 i;
-	struct htable *t = h->table;
 	size_t memsize = sizeof(*h)
 			 + sizeof(*t)
 #ifdef IP_SET_HASH_WITH_NETS
@@ -369,10 +371,11 @@ static void
 mtype_flush(struct ip_set *set)
 {
 	struct htype *h = set->data;
-	struct htable *t = h->table;
+	struct htable *t;
 	struct hbucket *n;
 	u32 i;
 
+	t = rcu_dereference_bh_nfnl(h->table);
 	for (i = 0; i < jhash_size(t->htable_bits); i++) {
 		n = hbucket(t, i);
 		if (n->size) {
@@ -397,7 +400,7 @@ mtype_destroy(struct ip_set *set)
 	if (set->extensions & IPSET_EXT_TIMEOUT)
 		del_timer_sync(&h->gc);
 
-	ahash_destroy(h->table);
+	ahash_destroy(rcu_dereference_bh_nfnl(h->table));
 #ifdef IP_SET_HASH_WITH_RBTREE
 	rbtree_destroy(&h->rbtree);
 #endif
@@ -443,12 +446,14 @@ mtype_same_set(const struct ip_set *a, const struct ip_set *b)
 static void
 mtype_expire(struct htype *h, u8 nets_length, size_t dsize)
 {
-	struct htable *t = h->table;
+	struct htable *t;
 	struct hbucket *n;
 	struct mtype_elem *data;
 	u32 i;
 	int j;
 
+	rcu_read_lock_bh();
+	t = rcu_dereference_bh(h->table);
 	for (i = 0; i < jhash_size(t->htable_bits); i++) {
 		n = hbucket(t, i);
 		for (j = 0; j < n->pos; j++) {
@@ -481,6 +486,7 @@ mtype_expire(struct htype *h, u8 nets_length, size_t dsize)
 			n->value = tmp;
 		}
 	}
+	rcu_read_unlock_bh();
 }
 
 static void
@@ -505,7 +511,7 @@ static int
 mtype_resize(struct ip_set *set, bool retried)
 {
 	struct htype *h = set->data;
-	struct htable *t, *orig = h->table;
+	struct htable *t, *orig = rcu_dereference_bh_nfnl(h->table);
 	u8 htable_bits = orig->htable_bits;
 #ifdef IP_SET_HASH_WITH_NETS
 	u8 flags;
@@ -682,13 +688,15 @@ mtype_del(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 	  struct ip_set_ext *mext, u32 flags)
 {
 	struct htype *h = set->data;
-	struct htable *t = h->table;
+	struct htable *t;
 	const struct mtype_elem *d = value;
 	struct mtype_elem *data;
 	struct hbucket *n;
-	int i;
+	int i, ret = -IPSET_ERR_EXIST;
 	u32 key, multi = 0;
 
+	rcu_read_lock_bh();
+	t = rcu_dereference_bh(h->table);
 	key = HKEY(value, h->initval, t->htable_bits);
 	n = hbucket(t, key);
 	for (i = 0; i < n->pos; i++) {
@@ -697,7 +705,7 @@ mtype_del(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 			continue;
 		if (SET_WITH_TIMEOUT(set) &&
 		    ip_set_timeout_expired(ext_timeout(data, h)))
-			return -IPSET_ERR_EXIST;
+			goto out;
 		if (i != n->pos - 1)
 			/* Not last one */
 			memcpy(data, ahash_data(n, n->pos - 1, h->dsize),
@@ -712,17 +720,22 @@ mtype_del(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 			void *tmp = kzalloc((n->size - AHASH_INIT_SIZE)
 					    * h->dsize,
 					    GFP_ATOMIC);
-			if (!tmp)
-				return 0;
+			if (!tmp) {
+				ret = 0;
+				goto out;
+			}
 			n->size -= AHASH_INIT_SIZE;
 			memcpy(tmp, n->value, n->size * h->dsize);
 			kfree(n->value);
 			n->value = tmp;
 		}
-		return 0;
+		ret = 0;
+		goto out;
 	}
 
-	return -IPSET_ERR_EXIST;
+out:
+	rcu_read_unlock_bh();
+	return ret;
 }
 
 static inline int
@@ -745,7 +758,7 @@ mtype_test_cidrs(struct ip_set *set, struct mtype_elem *d,
 		 struct ip_set_ext *mext, u32 flags)
 {
 	struct htype *h = set->data;
-	struct htable *t = h->table;
+	struct htable *t = rcu_dereference_bh(h->table);
 	struct hbucket *n;
 	struct mtype_elem *data;
 	int i, j = 0;
@@ -785,18 +798,22 @@ mtype_test(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 	   struct ip_set_ext *mext, u32 flags)
 {
 	struct htype *h = set->data;
-	struct htable *t = h->table;
+	struct htable *t;
 	struct mtype_elem *d = value;
 	struct hbucket *n;
 	struct mtype_elem *data;
-	int i;
+	int i, ret = 0;
 	u32 key, multi = 0;
 
+	rcu_read_lock_bh();
+	t = rcu_dereference_bh(h->table);
 #ifdef IP_SET_HASH_WITH_NETS
 	/* If we test an IP address and not a network address,
 	 * try all possible network sizes */
-	if (CIDR(d->cidr) == SET_HOST_MASK(set->family))
-		return mtype_test_cidrs(set, d, ext, mext, flags);
+	if (CIDR(d->cidr) == SET_HOST_MASK(set->family)) {
+		ret = mtype_test_cidrs(set, d, ext, mext, flags);
+		goto out;
+	}
 #endif
 
 	key = HKEY(d, h->initval, t->htable_bits);
@@ -805,10 +822,14 @@ mtype_test(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 		data = ahash_data(n, i, h->dsize);
 		if (mtype_data_equal(data, d, &multi) &&
 		    !(SET_WITH_TIMEOUT(set) &&
-		      ip_set_timeout_expired(ext_timeout(data, h))))
-			return mtype_data_match(data, ext, mext, set, flags);
+		      ip_set_timeout_expired(ext_timeout(data, h)))) {
+			ret = mtype_data_match(data, ext, mext, set, flags);
+			goto out;
+		}
 	}
-	return 0;
+out:
+	rcu_read_unlock_bh();
+	return ret;
 }
 
 /* Reply a HEADER request: fill out the header part of the set */
@@ -816,18 +837,18 @@ static int
 mtype_head(struct ip_set *set, struct sk_buff *skb)
 {
 	const struct htype *h = set->data;
+	const struct htable *t;
 	struct nlattr *nested;
 	size_t memsize;
 
-	read_lock_bh(&set->lock);
-	memsize = mtype_ahash_memsize(h, NETS_LENGTH(set->family));
-	read_unlock_bh(&set->lock);
+	t = rcu_dereference_bh_nfnl(h->table);
+	memsize = mtype_ahash_memsize(h, t, NETS_LENGTH(set->family));
 
 	nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
 	if (!nested)
 		goto nla_put_failure;
 	if (nla_put_net32(skb, IPSET_ATTR_HASHSIZE,
-			  htonl(jhash_size(h->table->htable_bits))) ||
+			  htonl(jhash_size(t->htable_bits))) ||
 	    nla_put_net32(skb, IPSET_ATTR_MAXELEM, htonl(h->maxelem)))
 		goto nla_put_failure;
 #ifdef IP_SET_HASH_WITH_NETMASK
@@ -856,7 +877,7 @@ mtype_list(const struct ip_set *set,
 	   struct sk_buff *skb, struct netlink_callback *cb)
 {
 	const struct htype *h = set->data;
-	const struct htable *t = h->table;
+	const struct htable *t = rcu_dereference_bh_nfnl(h->table);
 	struct nlattr *atd, *nested;
 	const struct hbucket *n;
 	const struct mtype_elem *e;
@@ -956,6 +977,7 @@ TOKEN(HTYPE, _create)(struct ip_set *set, struct nlattr *tb[], u32 flags)
 #endif
 	size_t hsize;
 	struct HTYPE *h;
+	struct htable *t;
 
 	if (!(set->family == NFPROTO_IPV4 || set->family == NFPROTO_IPV6))
 		return -IPSET_ERR_INVALID_FAMILY;
@@ -1013,12 +1035,13 @@ TOKEN(HTYPE, _create)(struct ip_set *set, struct nlattr *tb[], u32 flags)
 		kfree(h);
 		return -ENOMEM;
 	}
-	h->table = ip_set_alloc(hsize);
-	if (!h->table) {
+	t = ip_set_alloc(hsize);
+	if (!t) {
 		kfree(h);
 		return -ENOMEM;
 	}
-	h->table->htable_bits = hbits;
+	t->htable_bits = hbits;
+	rcu_assign_pointer(h->table, t);
 
 	set->data = h;
 	if (set->family ==  NFPROTO_IPV4)
@@ -1096,8 +1119,8 @@ TOKEN(HTYPE, _create)(struct ip_set *set, struct nlattr *tb[], u32 flags)
 	}
 
 	pr_debug("create %s hashsize %u (%u) maxelem %u: %p(%p)\n",
-		 set->name, jhash_size(h->table->htable_bits),
-		 h->table->htable_bits, h->maxelem, set->data, h->table);
+		 set->name, jhash_size(t->htable_bits),
+		 t->htable_bits, h->maxelem, set->data, t);
 
 	return 0;
 }
-- 
cgit 


From 35b8dcf8c3a0be1feb1c8b29b22e1685ba0c2e14 Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Tue, 30 Apr 2013 23:02:43 +0200
Subject: netfilter: ipset: Rename simple macro names to avoid namespace
 issues.

Reported-by: David Laight <David.Laight@ACULAB.COM>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 include/linux/netfilter/ipset/ip_set.h      |   3 +
 net/netfilter/ipset/ip_set_bitmap_gen.h     |  47 +++++----
 net/netfilter/ipset/ip_set_bitmap_ip.c      |  10 +-
 net/netfilter/ipset/ip_set_bitmap_ipmac.c   |  10 +-
 net/netfilter/ipset/ip_set_bitmap_port.c    |  10 +-
 net/netfilter/ipset/ip_set_hash_gen.h       | 147 +++++++++++++++-------------
 net/netfilter/ipset/ip_set_hash_ip.c        |  10 +-
 net/netfilter/ipset/ip_set_hash_ipport.c    |  12 +--
 net/netfilter/ipset/ip_set_hash_ipportip.c  |  12 +--
 net/netfilter/ipset/ip_set_hash_ipportnet.c |  16 +--
 net/netfilter/ipset/ip_set_hash_net.c       |  14 +--
 net/netfilter/ipset/ip_set_hash_netiface.c  |  14 +--
 net/netfilter/ipset/ip_set_hash_netport.c   |  16 +--
 net/netfilter/ipset/ip_set_list_set.c       |  10 +-
 14 files changed, 169 insertions(+), 162 deletions(-)

diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h
index 9ac9fbde7b61..f900f33a5f3d 100644
--- a/include/linux/netfilter/ipset/ip_set.h
+++ b/include/linux/netfilter/ipset/ip_set.h
@@ -398,4 +398,7 @@ bitmap_bytes(u32 a, u32 b)
 	{ .bytes = ULLONG_MAX, .packets = ULLONG_MAX,	\
 	  .timeout = (map)->timeout }
 
+#define IPSET_CONCAT(a, b)		a##b
+#define IPSET_TOKEN(a, b)		IPSET_CONCAT(a, b)
+
 #endif /*_IP_SET_H */
diff --git a/net/netfilter/ipset/ip_set_bitmap_gen.h b/net/netfilter/ipset/ip_set_bitmap_gen.h
index f6af97cf8d3e..d39905e7e881 100644
--- a/net/netfilter/ipset/ip_set_bitmap_gen.h
+++ b/net/netfilter/ipset/ip_set_bitmap_gen.h
@@ -8,31 +8,28 @@
 #ifndef __IP_SET_BITMAP_IP_GEN_H
 #define __IP_SET_BITMAP_IP_GEN_H
 
-#define CONCAT(a, b)		a##b
-#define TOKEN(a,b)		CONCAT(a, b)
-
-#define mtype_do_test		TOKEN(MTYPE, _do_test)
-#define mtype_gc_test		TOKEN(MTYPE, _gc_test)
-#define mtype_is_filled		TOKEN(MTYPE, _is_filled)
-#define mtype_do_add		TOKEN(MTYPE, _do_add)
-#define mtype_do_del		TOKEN(MTYPE, _do_del)
-#define mtype_do_list		TOKEN(MTYPE, _do_list)
-#define mtype_do_head		TOKEN(MTYPE, _do_head)
-#define mtype_adt_elem		TOKEN(MTYPE, _adt_elem)
-#define mtype_add_timeout	TOKEN(MTYPE, _add_timeout)
-#define mtype_gc_init		TOKEN(MTYPE, _gc_init)
-#define mtype_kadt		TOKEN(MTYPE, _kadt)
-#define mtype_uadt		TOKEN(MTYPE, _uadt)
-#define mtype_destroy		TOKEN(MTYPE, _destroy)
-#define mtype_flush		TOKEN(MTYPE, _flush)
-#define mtype_head		TOKEN(MTYPE, _head)
-#define mtype_same_set		TOKEN(MTYPE, _same_set)
-#define mtype_elem		TOKEN(MTYPE, _elem)
-#define mtype_test		TOKEN(MTYPE, _test)
-#define mtype_add		TOKEN(MTYPE, _add)
-#define mtype_del		TOKEN(MTYPE, _del)
-#define mtype_list		TOKEN(MTYPE, _list)
-#define mtype_gc		TOKEN(MTYPE, _gc)
+#define mtype_do_test		IPSET_TOKEN(MTYPE, _do_test)
+#define mtype_gc_test		IPSET_TOKEN(MTYPE, _gc_test)
+#define mtype_is_filled		IPSET_TOKEN(MTYPE, _is_filled)
+#define mtype_do_add		IPSET_TOKEN(MTYPE, _do_add)
+#define mtype_do_del		IPSET_TOKEN(MTYPE, _do_del)
+#define mtype_do_list		IPSET_TOKEN(MTYPE, _do_list)
+#define mtype_do_head		IPSET_TOKEN(MTYPE, _do_head)
+#define mtype_adt_elem		IPSET_TOKEN(MTYPE, _adt_elem)
+#define mtype_add_timeout	IPSET_TOKEN(MTYPE, _add_timeout)
+#define mtype_gc_init		IPSET_TOKEN(MTYPE, _gc_init)
+#define mtype_kadt		IPSET_TOKEN(MTYPE, _kadt)
+#define mtype_uadt		IPSET_TOKEN(MTYPE, _uadt)
+#define mtype_destroy		IPSET_TOKEN(MTYPE, _destroy)
+#define mtype_flush		IPSET_TOKEN(MTYPE, _flush)
+#define mtype_head		IPSET_TOKEN(MTYPE, _head)
+#define mtype_same_set		IPSET_TOKEN(MTYPE, _same_set)
+#define mtype_elem		IPSET_TOKEN(MTYPE, _elem)
+#define mtype_test		IPSET_TOKEN(MTYPE, _test)
+#define mtype_add		IPSET_TOKEN(MTYPE, _add)
+#define mtype_del		IPSET_TOKEN(MTYPE, _del)
+#define mtype_list		IPSET_TOKEN(MTYPE, _list)
+#define mtype_gc		IPSET_TOKEN(MTYPE, _gc)
 #define mtype			MTYPE
 
 #define ext_timeout(e, m)	\
diff --git a/net/netfilter/ipset/ip_set_bitmap_ip.c b/net/netfilter/ipset/ip_set_bitmap_ip.c
index f1a8128bef01..c2f89b1c1d92 100644
--- a/net/netfilter/ipset/ip_set_bitmap_ip.c
+++ b/net/netfilter/ipset/ip_set_bitmap_ip.c
@@ -25,12 +25,12 @@
 #include <linux/netfilter/ipset/ip_set.h>
 #include <linux/netfilter/ipset/ip_set_bitmap.h>
 
-#define REVISION_MIN	0
-#define REVISION_MAX	1	/* Counter support added */
+#define IPSET_TYPE_REV_MIN	0
+#define IPSET_TYPE_REV_MAX	1	/* Counter support added */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-IP_SET_MODULE_DESC("bitmap:ip", REVISION_MIN, REVISION_MAX);
+IP_SET_MODULE_DESC("bitmap:ip", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
 MODULE_ALIAS("ip_set_bitmap:ip");
 
 #define MTYPE		bitmap_ip
@@ -401,8 +401,8 @@ static struct ip_set_type bitmap_ip_type __read_mostly = {
 	.features	= IPSET_TYPE_IP,
 	.dimension	= IPSET_DIM_ONE,
 	.family		= NFPROTO_IPV4,
-	.revision_min	= REVISION_MIN,
-	.revision_max	= REVISION_MAX,
+	.revision_min	= IPSET_TYPE_REV_MIN,
+	.revision_max	= IPSET_TYPE_REV_MAX,
 	.create		= bitmap_ip_create,
 	.create_policy	= {
 		[IPSET_ATTR_IP]		= { .type = NLA_NESTED },
diff --git a/net/netfilter/ipset/ip_set_bitmap_ipmac.c b/net/netfilter/ipset/ip_set_bitmap_ipmac.c
index 3b30e0bef890..1d6551cc590e 100644
--- a/net/netfilter/ipset/ip_set_bitmap_ipmac.c
+++ b/net/netfilter/ipset/ip_set_bitmap_ipmac.c
@@ -25,12 +25,12 @@
 #include <linux/netfilter/ipset/ip_set.h>
 #include <linux/netfilter/ipset/ip_set_bitmap.h>
 
-#define REVISION_MIN	0
-#define REVISION_MAX	1	/* Counter support added */
+#define IPSET_TYPE_REV_MIN	0
+#define IPSET_TYPE_REV_MAX	1	/* Counter support added */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-IP_SET_MODULE_DESC("bitmap:ip,mac", REVISION_MIN, REVISION_MAX);
+IP_SET_MODULE_DESC("bitmap:ip,mac", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
 MODULE_ALIAS("ip_set_bitmap:ip,mac");
 
 #define MTYPE		bitmap_ipmac
@@ -460,8 +460,8 @@ static struct ip_set_type bitmap_ipmac_type = {
 	.features	= IPSET_TYPE_IP | IPSET_TYPE_MAC,
 	.dimension	= IPSET_DIM_TWO,
 	.family		= NFPROTO_IPV4,
-	.revision_min	= REVISION_MIN,
-	.revision_max	= REVISION_MAX,
+	.revision_min	= IPSET_TYPE_REV_MIN,
+	.revision_max	= IPSET_TYPE_REV_MAX,
 	.create		= bitmap_ipmac_create,
 	.create_policy	= {
 		[IPSET_ATTR_IP]		= { .type = NLA_NESTED },
diff --git a/net/netfilter/ipset/ip_set_bitmap_port.c b/net/netfilter/ipset/ip_set_bitmap_port.c
index 8207d1fda528..b22048965d2a 100644
--- a/net/netfilter/ipset/ip_set_bitmap_port.c
+++ b/net/netfilter/ipset/ip_set_bitmap_port.c
@@ -20,12 +20,12 @@
 #include <linux/netfilter/ipset/ip_set_bitmap.h>
 #include <linux/netfilter/ipset/ip_set_getport.h>
 
-#define REVISION_MIN	0
-#define REVISION_MAX	1	/* Counter support added */
+#define IPSET_TYPE_REV_MIN	0
+#define IPSET_TYPE_REV_MAX	1	/* Counter support added */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-IP_SET_MODULE_DESC("bitmap:port", REVISION_MIN, REVISION_MAX);
+IP_SET_MODULE_DESC("bitmap:port", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
 MODULE_ALIAS("ip_set_bitmap:port");
 
 #define MTYPE		bitmap_port
@@ -333,8 +333,8 @@ static struct ip_set_type bitmap_port_type = {
 	.features	= IPSET_TYPE_PORT,
 	.dimension	= IPSET_DIM_ONE,
 	.family		= NFPROTO_UNSPEC,
-	.revision_min	= REVISION_MIN,
-	.revision_max	= REVISION_MAX,
+	.revision_min	= IPSET_TYPE_REV_MIN,
+	.revision_max	= IPSET_TYPE_REV_MAX,
 	.create		= bitmap_port_create,
 	.create_policy	= {
 		[IPSET_ATTR_PORT]	= { .type = NLA_U16 },
diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index 09a21dd5f120..68b9ccebabaa 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -17,9 +17,6 @@
 
 #define rcu_dereference_bh_nfnl(p)	rcu_dereference_bh_check(p, 1)
 
-#define CONCAT(a, b)		a##b
-#define TOKEN(a, b)		CONCAT(a, b)
-
 /* Hashing which uses arrays to resolve clashing. The hash table is resized
  * (doubled) when searching becomes too long.
  * Internally jhash is used with the assumption that the size of the
@@ -222,41 +219,41 @@ hbucket_elem_add(struct hbucket *n, u8 ahash_max, size_t dsize)
 
 #undef HKEY
 
-#define mtype_data_equal	TOKEN(MTYPE, _data_equal)
+#define mtype_data_equal	IPSET_TOKEN(MTYPE, _data_equal)
 #ifdef IP_SET_HASH_WITH_NETS
-#define mtype_do_data_match	TOKEN(MTYPE, _do_data_match)
+#define mtype_do_data_match	IPSET_TOKEN(MTYPE, _do_data_match)
 #else
 #define mtype_do_data_match(d)	1
 #endif
-#define mtype_data_set_flags	TOKEN(MTYPE, _data_set_flags)
-#define mtype_data_reset_flags	TOKEN(MTYPE, _data_reset_flags)
-#define mtype_data_netmask	TOKEN(MTYPE, _data_netmask)
-#define mtype_data_list		TOKEN(MTYPE, _data_list)
-#define mtype_data_next		TOKEN(MTYPE, _data_next)
-#define mtype_elem		TOKEN(MTYPE, _elem)
-#define mtype_add_cidr		TOKEN(MTYPE, _add_cidr)
-#define mtype_del_cidr		TOKEN(MTYPE, _del_cidr)
-#define mtype_ahash_memsize	TOKEN(MTYPE, _ahash_memsize)
-#define mtype_flush		TOKEN(MTYPE, _flush)
-#define mtype_destroy		TOKEN(MTYPE, _destroy)
-#define mtype_gc_init		TOKEN(MTYPE, _gc_init)
-#define mtype_same_set		TOKEN(MTYPE, _same_set)
-#define mtype_kadt		TOKEN(MTYPE, _kadt)
-#define mtype_uadt		TOKEN(MTYPE, _uadt)
+#define mtype_data_set_flags	IPSET_TOKEN(MTYPE, _data_set_flags)
+#define mtype_data_reset_flags	IPSET_TOKEN(MTYPE, _data_reset_flags)
+#define mtype_data_netmask	IPSET_TOKEN(MTYPE, _data_netmask)
+#define mtype_data_list		IPSET_TOKEN(MTYPE, _data_list)
+#define mtype_data_next		IPSET_TOKEN(MTYPE, _data_next)
+#define mtype_elem		IPSET_TOKEN(MTYPE, _elem)
+#define mtype_add_cidr		IPSET_TOKEN(MTYPE, _add_cidr)
+#define mtype_del_cidr		IPSET_TOKEN(MTYPE, _del_cidr)
+#define mtype_ahash_memsize	IPSET_TOKEN(MTYPE, _ahash_memsize)
+#define mtype_flush		IPSET_TOKEN(MTYPE, _flush)
+#define mtype_destroy		IPSET_TOKEN(MTYPE, _destroy)
+#define mtype_gc_init		IPSET_TOKEN(MTYPE, _gc_init)
+#define mtype_same_set		IPSET_TOKEN(MTYPE, _same_set)
+#define mtype_kadt		IPSET_TOKEN(MTYPE, _kadt)
+#define mtype_uadt		IPSET_TOKEN(MTYPE, _uadt)
 #define mtype			MTYPE
 
-#define mtype_elem		TOKEN(MTYPE, _elem)
-#define mtype_add		TOKEN(MTYPE, _add)
-#define mtype_del		TOKEN(MTYPE, _del)
-#define mtype_test_cidrs	TOKEN(MTYPE, _test_cidrs)
-#define mtype_test		TOKEN(MTYPE, _test)
-#define mtype_expire		TOKEN(MTYPE, _expire)
-#define mtype_resize		TOKEN(MTYPE, _resize)
-#define mtype_head		TOKEN(MTYPE, _head)
-#define mtype_list		TOKEN(MTYPE, _list)
-#define mtype_gc		TOKEN(MTYPE, _gc)
-#define mtype_variant		TOKEN(MTYPE, _variant)
-#define mtype_data_match	TOKEN(MTYPE, _data_match)
+#define mtype_elem		IPSET_TOKEN(MTYPE, _elem)
+#define mtype_add		IPSET_TOKEN(MTYPE, _add)
+#define mtype_del		IPSET_TOKEN(MTYPE, _del)
+#define mtype_test_cidrs	IPSET_TOKEN(MTYPE, _test_cidrs)
+#define mtype_test		IPSET_TOKEN(MTYPE, _test)
+#define mtype_expire		IPSET_TOKEN(MTYPE, _expire)
+#define mtype_resize		IPSET_TOKEN(MTYPE, _resize)
+#define mtype_head		IPSET_TOKEN(MTYPE, _head)
+#define mtype_list		IPSET_TOKEN(MTYPE, _list)
+#define mtype_gc		IPSET_TOKEN(MTYPE, _gc)
+#define mtype_variant		IPSET_TOKEN(MTYPE, _variant)
+#define mtype_data_match	IPSET_TOKEN(MTYPE, _data_match)
 
 #ifndef HKEY_DATALEN
 #define HKEY_DATALEN		sizeof(struct mtype_elem)
@@ -941,13 +938,13 @@ nla_put_failure:
 }
 
 static int
-TOKEN(MTYPE, _kadt)(struct ip_set *set, const struct sk_buff *skb,
-	      const struct xt_action_param *par,
-	      enum ipset_adt adt, struct ip_set_adt_opt *opt);
+IPSET_TOKEN(MTYPE, _kadt)(struct ip_set *set, const struct sk_buff *skb,
+	    const struct xt_action_param *par,
+	    enum ipset_adt adt, struct ip_set_adt_opt *opt);
 
 static int
-TOKEN(MTYPE, _uadt)(struct ip_set *set, struct nlattr *tb[],
-	      enum ipset_adt adt, u32 *lineno, u32 flags, bool retried);
+IPSET_TOKEN(MTYPE, _uadt)(struct ip_set *set, struct nlattr *tb[],
+	    enum ipset_adt adt, u32 *lineno, u32 flags, bool retried);
 
 static const struct ip_set_type_variant mtype_variant = {
 	.kadt	= mtype_kadt,
@@ -967,7 +964,7 @@ static const struct ip_set_type_variant mtype_variant = {
 
 #ifdef IP_SET_EMIT_CREATE
 static int
-TOKEN(HTYPE, _create)(struct ip_set *set, struct nlattr *tb[], u32 flags)
+IPSET_TOKEN(HTYPE, _create)(struct ip_set *set, struct nlattr *tb[], u32 flags)
 {
 	u32 hashsize = IPSET_DEFAULT_HASHSIZE, maxelem = IPSET_DEFAULT_MAXELEM;
 	u32 cadt_flags = 0;
@@ -1045,9 +1042,9 @@ TOKEN(HTYPE, _create)(struct ip_set *set, struct nlattr *tb[], u32 flags)
 
 	set->data = h;
 	if (set->family ==  NFPROTO_IPV4)
-		set->variant = &TOKEN(HTYPE, 4_variant);
+		set->variant = &IPSET_TOKEN(HTYPE, 4_variant);
 	else
-		set->variant = &TOKEN(HTYPE, 6_variant);
+		set->variant = &IPSET_TOKEN(HTYPE, 6_variant);
 
 	if (tb[IPSET_ATTR_CADT_FLAGS])
 		cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
@@ -1058,64 +1055,74 @@ TOKEN(HTYPE, _create)(struct ip_set *set, struct nlattr *tb[], u32 flags)
 				ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
 			set->extensions |= IPSET_EXT_TIMEOUT;
 			if (set->family == NFPROTO_IPV4) {
-				h->dsize =
-					sizeof(struct TOKEN(HTYPE, 4ct_elem));
+				h->dsize = sizeof(struct
+					IPSET_TOKEN(HTYPE, 4ct_elem));
 				h->offset[IPSET_OFFSET_TIMEOUT] =
-					offsetof(struct TOKEN(HTYPE, 4ct_elem),
-						 timeout);
+					offsetof(struct
+						IPSET_TOKEN(HTYPE, 4ct_elem),
+						timeout);
 				h->offset[IPSET_OFFSET_COUNTER] =
-					offsetof(struct TOKEN(HTYPE, 4ct_elem),
-						 counter);
-				TOKEN(HTYPE, 4_gc_init)(set,
-					TOKEN(HTYPE, 4_gc));
+					offsetof(struct
+						IPSET_TOKEN(HTYPE, 4ct_elem),
+						counter);
+				IPSET_TOKEN(HTYPE, 4_gc_init)(set,
+					IPSET_TOKEN(HTYPE, 4_gc));
 			} else {
-				h->dsize =
-					sizeof(struct TOKEN(HTYPE, 6ct_elem));
+				h->dsize = sizeof(struct
+					IPSET_TOKEN(HTYPE, 6ct_elem));
 				h->offset[IPSET_OFFSET_TIMEOUT] =
-					offsetof(struct TOKEN(HTYPE, 6ct_elem),
-						 timeout);
+					offsetof(struct
+						IPSET_TOKEN(HTYPE, 6ct_elem),
+						timeout);
 				h->offset[IPSET_OFFSET_COUNTER] =
-					offsetof(struct TOKEN(HTYPE, 6ct_elem),
-						 counter);
-				TOKEN(HTYPE, 6_gc_init)(set,
-					TOKEN(HTYPE, 6_gc));
+					offsetof(struct
+						IPSET_TOKEN(HTYPE, 6ct_elem),
+						counter);
+				IPSET_TOKEN(HTYPE, 6_gc_init)(set,
+					IPSET_TOKEN(HTYPE, 6_gc));
 			}
 		} else {
 			if (set->family == NFPROTO_IPV4) {
 				h->dsize =
-					sizeof(struct TOKEN(HTYPE, 4c_elem));
+					sizeof(struct
+						IPSET_TOKEN(HTYPE, 4c_elem));
 				h->offset[IPSET_OFFSET_COUNTER] =
-					offsetof(struct TOKEN(HTYPE, 4c_elem),
-						 counter);
+					offsetof(struct
+						IPSET_TOKEN(HTYPE, 4c_elem),
+						counter);
 			} else {
 				h->dsize =
-					sizeof(struct TOKEN(HTYPE, 6c_elem));
+					sizeof(struct
+						IPSET_TOKEN(HTYPE, 6c_elem));
 				h->offset[IPSET_OFFSET_COUNTER] =
-					offsetof(struct TOKEN(HTYPE, 6c_elem),
-						 counter);
+					offsetof(struct
+						IPSET_TOKEN(HTYPE, 6c_elem),
+						counter);
 			}
 		}
 	} else if (tb[IPSET_ATTR_TIMEOUT]) {
 		h->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
 		set->extensions |= IPSET_EXT_TIMEOUT;
 		if (set->family == NFPROTO_IPV4) {
-			h->dsize = sizeof(struct TOKEN(HTYPE, 4t_elem));
+			h->dsize = sizeof(struct IPSET_TOKEN(HTYPE, 4t_elem));
 			h->offset[IPSET_OFFSET_TIMEOUT] =
-				offsetof(struct TOKEN(HTYPE, 4t_elem),
+				offsetof(struct IPSET_TOKEN(HTYPE, 4t_elem),
 					 timeout);
-			TOKEN(HTYPE, 4_gc_init)(set, TOKEN(HTYPE, 4_gc));
+			IPSET_TOKEN(HTYPE, 4_gc_init)(set,
+				IPSET_TOKEN(HTYPE, 4_gc));
 		} else {
-			h->dsize = sizeof(struct TOKEN(HTYPE, 6t_elem));
+			h->dsize = sizeof(struct IPSET_TOKEN(HTYPE, 6t_elem));
 			h->offset[IPSET_OFFSET_TIMEOUT] =
-				offsetof(struct TOKEN(HTYPE, 6t_elem),
+				offsetof(struct IPSET_TOKEN(HTYPE, 6t_elem),
 					 timeout);
-			TOKEN(HTYPE, 6_gc_init)(set, TOKEN(HTYPE, 6_gc));
+			IPSET_TOKEN(HTYPE, 6_gc_init)(set,
+				IPSET_TOKEN(HTYPE, 6_gc));
 		}
 	} else {
 		if (set->family == NFPROTO_IPV4)
-			h->dsize = sizeof(struct TOKEN(HTYPE, 4_elem));
+			h->dsize = sizeof(struct IPSET_TOKEN(HTYPE, 4_elem));
 		else
-			h->dsize = sizeof(struct TOKEN(HTYPE, 6_elem));
+			h->dsize = sizeof(struct IPSET_TOKEN(HTYPE, 6_elem));
 	}
 
 	pr_debug("create %s hashsize %u (%u) maxelem %u: %p(%p)\n",
diff --git a/net/netfilter/ipset/ip_set_hash_ip.c b/net/netfilter/ipset/ip_set_hash_ip.c
index c74e6e14cd93..de44fca687c3 100644
--- a/net/netfilter/ipset/ip_set_hash_ip.c
+++ b/net/netfilter/ipset/ip_set_hash_ip.c
@@ -23,12 +23,12 @@
 #include <linux/netfilter/ipset/ip_set.h>
 #include <linux/netfilter/ipset/ip_set_hash.h>
 
-#define REVISION_MIN	0
-#define REVISION_MAX	1	/* Counters support */
+#define IPSET_TYPE_REV_MIN	0
+#define IPSET_TYPE_REV_MAX	1	/* Counters support */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-IP_SET_MODULE_DESC("hash:ip", REVISION_MIN, REVISION_MAX);
+IP_SET_MODULE_DESC("hash:ip", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
 MODULE_ALIAS("ip_set_hash:ip");
 
 /* Type specific function prefix */
@@ -304,8 +304,8 @@ static struct ip_set_type hash_ip_type __read_mostly = {
 	.features	= IPSET_TYPE_IP,
 	.dimension	= IPSET_DIM_ONE,
 	.family		= NFPROTO_UNSPEC,
-	.revision_min	= REVISION_MIN,
-	.revision_max	= REVISION_MAX,
+	.revision_min	= IPSET_TYPE_REV_MIN,
+	.revision_max	= IPSET_TYPE_REV_MAX,
 	.create		= hash_ip_create,
 	.create_policy	= {
 		[IPSET_ATTR_HASHSIZE]	= { .type = NLA_U32 },
diff --git a/net/netfilter/ipset/ip_set_hash_ipport.c b/net/netfilter/ipset/ip_set_hash_ipport.c
index 7a2d2bd98d04..b514ff4e83ae 100644
--- a/net/netfilter/ipset/ip_set_hash_ipport.c
+++ b/net/netfilter/ipset/ip_set_hash_ipport.c
@@ -24,13 +24,13 @@
 #include <linux/netfilter/ipset/ip_set_getport.h>
 #include <linux/netfilter/ipset/ip_set_hash.h>
 
-#define REVISION_MIN	0
-/*			1    SCTP and UDPLITE support added */
-#define REVISION_MAX	2 /* Counters support added */
+#define IPSET_TYPE_REV_MIN	0
+/*				1    SCTP and UDPLITE support added */
+#define IPSET_TYPE_REV_MAX	2 /* Counters support added */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-IP_SET_MODULE_DESC("hash:ip,port", REVISION_MIN, REVISION_MAX);
+IP_SET_MODULE_DESC("hash:ip,port", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
 MODULE_ALIAS("ip_set_hash:ip,port");
 
 /* Type specific function prefix */
@@ -396,8 +396,8 @@ static struct ip_set_type hash_ipport_type __read_mostly = {
 	.features	= IPSET_TYPE_IP | IPSET_TYPE_PORT,
 	.dimension	= IPSET_DIM_TWO,
 	.family		= NFPROTO_UNSPEC,
-	.revision_min	= REVISION_MIN,
-	.revision_max	= REVISION_MAX,
+	.revision_min	= IPSET_TYPE_REV_MIN,
+	.revision_max	= IPSET_TYPE_REV_MAX,
 	.create		= hash_ipport_create,
 	.create_policy	= {
 		[IPSET_ATTR_HASHSIZE]	= { .type = NLA_U32 },
diff --git a/net/netfilter/ipset/ip_set_hash_ipportip.c b/net/netfilter/ipset/ip_set_hash_ipportip.c
index 34e8a1acce42..d05070d74604 100644
--- a/net/netfilter/ipset/ip_set_hash_ipportip.c
+++ b/net/netfilter/ipset/ip_set_hash_ipportip.c
@@ -24,13 +24,13 @@
 #include <linux/netfilter/ipset/ip_set_getport.h>
 #include <linux/netfilter/ipset/ip_set_hash.h>
 
-#define REVISION_MIN	0
-/*			1    SCTP and UDPLITE support added */
-#define REVISION_MAX	2 /* Counters support added */
+#define IPSET_TYPE_REV_MIN	0
+/*				1    SCTP and UDPLITE support added */
+#define IPSET_TYPE_REV_MAX	2 /* Counters support added */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-IP_SET_MODULE_DESC("hash:ip,port,ip", REVISION_MIN, REVISION_MAX);
+IP_SET_MODULE_DESC("hash:ip,port,ip", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
 MODULE_ALIAS("ip_set_hash:ip,port,ip");
 
 /* Type specific function prefix */
@@ -414,8 +414,8 @@ static struct ip_set_type hash_ipportip_type __read_mostly = {
 	.features	= IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_IP2,
 	.dimension	= IPSET_DIM_THREE,
 	.family		= NFPROTO_UNSPEC,
-	.revision_min	= REVISION_MIN,
-	.revision_max	= REVISION_MAX,
+	.revision_min	= IPSET_TYPE_REV_MIN,
+	.revision_max	= IPSET_TYPE_REV_MAX,
 	.create		= hash_ipportip_create,
 	.create_policy	= {
 		[IPSET_ATTR_HASHSIZE]	= { .type = NLA_U32 },
diff --git a/net/netfilter/ipset/ip_set_hash_ipportnet.c b/net/netfilter/ipset/ip_set_hash_ipportnet.c
index 9a80d8bc9f18..7d1dede4ab6d 100644
--- a/net/netfilter/ipset/ip_set_hash_ipportnet.c
+++ b/net/netfilter/ipset/ip_set_hash_ipportnet.c
@@ -24,15 +24,15 @@
 #include <linux/netfilter/ipset/ip_set_getport.h>
 #include <linux/netfilter/ipset/ip_set_hash.h>
 
-#define REVISION_MIN	0
-/*			1    SCTP and UDPLITE support added */
-/*			2    Range as input support for IPv4 added */
-/*			3    nomatch flag support added */
-#define REVISION_MAX	4 /* Counters support added */
+#define IPSET_TYPE_REV_MIN	0
+/*				1    SCTP and UDPLITE support added */
+/*				2    Range as input support for IPv4 added */
+/*				3    nomatch flag support added */
+#define IPSET_TYPE_REV_MAX	4 /* Counters support added */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-IP_SET_MODULE_DESC("hash:ip,port,net", REVISION_MIN, REVISION_MAX);
+IP_SET_MODULE_DESC("hash:ip,port,net", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
 MODULE_ALIAS("ip_set_hash:ip,port,net");
 
 /* Type specific function prefix */
@@ -574,8 +574,8 @@ static struct ip_set_type hash_ipportnet_type __read_mostly = {
 			  IPSET_TYPE_NOMATCH,
 	.dimension	= IPSET_DIM_THREE,
 	.family		= NFPROTO_UNSPEC,
-	.revision_min	= REVISION_MIN,
-	.revision_max	= REVISION_MAX,
+	.revision_min	= IPSET_TYPE_REV_MIN,
+	.revision_max	= IPSET_TYPE_REV_MAX,
 	.create		= hash_ipportnet_create,
 	.create_policy	= {
 		[IPSET_ATTR_HASHSIZE]	= { .type = NLA_U32 },
diff --git a/net/netfilter/ipset/ip_set_hash_net.c b/net/netfilter/ipset/ip_set_hash_net.c
index 223e9f546d0f..9cb9ef43d941 100644
--- a/net/netfilter/ipset/ip_set_hash_net.c
+++ b/net/netfilter/ipset/ip_set_hash_net.c
@@ -22,14 +22,14 @@
 #include <linux/netfilter/ipset/ip_set.h>
 #include <linux/netfilter/ipset/ip_set_hash.h>
 
-#define REVISION_MIN	0
-/*			1    Range as input support for IPv4 added */
-/*			2    nomatch flag support added */
-#define REVISION_MAX	3 /* Counters support added */
+#define IPSET_TYPE_REV_MIN	0
+/*				1    Range as input support for IPv4 added */
+/*				2    nomatch flag support added */
+#define IPSET_TYPE_REV_MAX	3 /* Counters support added */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-IP_SET_MODULE_DESC("hash:net", REVISION_MIN, REVISION_MAX);
+IP_SET_MODULE_DESC("hash:net", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
 MODULE_ALIAS("ip_set_hash:net");
 
 /* Type specific function prefix */
@@ -406,8 +406,8 @@ static struct ip_set_type hash_net_type __read_mostly = {
 	.features	= IPSET_TYPE_IP | IPSET_TYPE_NOMATCH,
 	.dimension	= IPSET_DIM_ONE,
 	.family		= NFPROTO_UNSPEC,
-	.revision_min	= REVISION_MIN,
-	.revision_max	= REVISION_MAX,
+	.revision_min	= IPSET_TYPE_REV_MIN,
+	.revision_max	= IPSET_TYPE_REV_MAX,
 	.create		= hash_net_create,
 	.create_policy	= {
 		[IPSET_ATTR_HASHSIZE]	= { .type = NLA_U32 },
diff --git a/net/netfilter/ipset/ip_set_hash_netiface.c b/net/netfilter/ipset/ip_set_hash_netiface.c
index 7d798d5d5cd3..2310fc29e89e 100644
--- a/net/netfilter/ipset/ip_set_hash_netiface.c
+++ b/net/netfilter/ipset/ip_set_hash_netiface.c
@@ -23,14 +23,14 @@
 #include <linux/netfilter/ipset/ip_set.h>
 #include <linux/netfilter/ipset/ip_set_hash.h>
 
-#define REVISION_MIN	0
-/*			1    nomatch flag support added */
-/*			2    /0 support added */
-#define REVISION_MAX	3 /* Counters support added */
+#define IPSET_TYPE_REV_MIN	0
+/*				1    nomatch flag support added */
+/*				2    /0 support added */
+#define IPSET_TYPE_REV_MAX	3 /* Counters support added */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-IP_SET_MODULE_DESC("hash:net,iface", REVISION_MIN, REVISION_MAX);
+IP_SET_MODULE_DESC("hash:net,iface", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
 MODULE_ALIAS("ip_set_hash:net,iface");
 
 /* Interface name rbtree */
@@ -645,8 +645,8 @@ static struct ip_set_type hash_netiface_type __read_mostly = {
 			  IPSET_TYPE_NOMATCH,
 	.dimension	= IPSET_DIM_TWO,
 	.family		= NFPROTO_UNSPEC,
-	.revision_min	= REVISION_MIN,
-	.revision_max	= REVISION_MAX,
+	.revision_min	= IPSET_TYPE_REV_MIN,
+	.revision_max	= IPSET_TYPE_REV_MAX,
 	.create		= hash_netiface_create,
 	.create_policy	= {
 		[IPSET_ATTR_HASHSIZE]	= { .type = NLA_U32 },
diff --git a/net/netfilter/ipset/ip_set_hash_netport.c b/net/netfilter/ipset/ip_set_hash_netport.c
index 09d6690bee6f..1601d489fdbc 100644
--- a/net/netfilter/ipset/ip_set_hash_netport.c
+++ b/net/netfilter/ipset/ip_set_hash_netport.c
@@ -23,15 +23,15 @@
 #include <linux/netfilter/ipset/ip_set_getport.h>
 #include <linux/netfilter/ipset/ip_set_hash.h>
 
-#define REVISION_MIN	0
-/*			1    SCTP and UDPLITE support added */
-/*			2    Range as input support for IPv4 added */
-/*			3    nomatch flag support added */
-#define REVISION_MAX	4 /* Counters support added */
+#define IPSET_TYPE_REV_MIN	0
+/*				1    SCTP and UDPLITE support added */
+/*				2    Range as input support for IPv4 added */
+/*				3    nomatch flag support added */
+#define IPSET_TYPE_REV_MAX	4 /* Counters support added */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-IP_SET_MODULE_DESC("hash:net,port", REVISION_MIN, REVISION_MAX);
+IP_SET_MODULE_DESC("hash:net,port", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
 MODULE_ALIAS("ip_set_hash:net,port");
 
 /* Type specific function prefix */
@@ -518,8 +518,8 @@ static struct ip_set_type hash_netport_type __read_mostly = {
 	.features	= IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_NOMATCH,
 	.dimension	= IPSET_DIM_TWO,
 	.family		= NFPROTO_UNSPEC,
-	.revision_min	= REVISION_MIN,
-	.revision_max	= REVISION_MAX,
+	.revision_min	= IPSET_TYPE_REV_MIN,
+	.revision_max	= IPSET_TYPE_REV_MAX,
 	.create		= hash_netport_create,
 	.create_policy	= {
 		[IPSET_ATTR_HASHSIZE]	= { .type = NLA_U32 },
diff --git a/net/netfilter/ipset/ip_set_list_set.c b/net/netfilter/ipset/ip_set_list_set.c
index 68299ee15847..a9e301f6e093 100644
--- a/net/netfilter/ipset/ip_set_list_set.c
+++ b/net/netfilter/ipset/ip_set_list_set.c
@@ -15,12 +15,12 @@
 #include <linux/netfilter/ipset/ip_set.h>
 #include <linux/netfilter/ipset/ip_set_list.h>
 
-#define REVISION_MIN	0
-#define REVISION_MAX	1 /* Counters support added */
+#define IPSET_TYPE_REV_MIN	0
+#define IPSET_TYPE_REV_MAX	1 /* Counters support added */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
-IP_SET_MODULE_DESC("list:set", REVISION_MIN, REVISION_MAX);
+IP_SET_MODULE_DESC("list:set", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
 MODULE_ALIAS("ip_set_list:set");
 
 /* Member elements  */
@@ -703,8 +703,8 @@ static struct ip_set_type list_set_type __read_mostly = {
 	.features	= IPSET_TYPE_NAME | IPSET_DUMP_LAST,
 	.dimension	= IPSET_DIM_ONE,
 	.family		= NFPROTO_UNSPEC,
-	.revision_min	= REVISION_MIN,
-	.revision_max	= REVISION_MAX,
+	.revision_min	= IPSET_TYPE_REV_MIN,
+	.revision_max	= IPSET_TYPE_REV_MAX,
 	.create		= list_set_create,
 	.create_policy	= {
 		[IPSET_ATTR_SIZE]	= { .type = NLA_U32 },
-- 
cgit 


From 20b2fab483094d51c8d26784b81e12149474e0f2 Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Wed, 1 May 2013 18:47:32 +0200
Subject: netfilter: ipset: Fix "may be used uninitialized" warnings

Reported-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 net/netfilter/ipset/ip_set_bitmap_ip.c      | 4 ++--
 net/netfilter/ipset/ip_set_bitmap_ipmac.c   | 4 ++--
 net/netfilter/ipset/ip_set_hash_ip.c        | 2 +-
 net/netfilter/ipset/ip_set_hash_ipport.c    | 2 +-
 net/netfilter/ipset/ip_set_hash_ipportip.c  | 2 +-
 net/netfilter/ipset/ip_set_hash_ipportnet.c | 4 ++--
 net/netfilter/ipset/ip_set_hash_net.c       | 2 +-
 net/netfilter/ipset/ip_set_hash_netiface.c  | 2 +-
 net/netfilter/ipset/ip_set_hash_netport.c   | 2 +-
 9 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/net/netfilter/ipset/ip_set_bitmap_ip.c b/net/netfilter/ipset/ip_set_bitmap_ip.c
index c2f89b1c1d92..ce99d2652d47 100644
--- a/net/netfilter/ipset/ip_set_bitmap_ip.c
+++ b/net/netfilter/ipset/ip_set_bitmap_ip.c
@@ -131,7 +131,7 @@ bitmap_ip_uadt(struct ip_set *set, struct nlattr *tb[],
 {
 	struct bitmap_ip *map = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
-	u32 ip, ip_to;
+	u32 ip = 0, ip_to = 0;
 	struct bitmap_ip_adt_elem e = { };
 	struct ip_set_ext ext = IP_SET_INIT_UEXT(map);
 	int ret = 0;
@@ -264,7 +264,7 @@ static int
 bitmap_ip_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 {
 	struct bitmap_ip *map;
-	u32 first_ip, last_ip, hosts, cadt_flags = 0;
+	u32 first_ip = 0, last_ip = 0, hosts, cadt_flags = 0;
 	u64 elements;
 	u8 netmask = 32;
 	int ret;
diff --git a/net/netfilter/ipset/ip_set_bitmap_ipmac.c b/net/netfilter/ipset/ip_set_bitmap_ipmac.c
index 1d6551cc590e..6d5bad93026b 100644
--- a/net/netfilter/ipset/ip_set_bitmap_ipmac.c
+++ b/net/netfilter/ipset/ip_set_bitmap_ipmac.c
@@ -246,7 +246,7 @@ bitmap_ipmac_uadt(struct ip_set *set, struct nlattr *tb[],
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct bitmap_ipmac_adt_elem e = {};
 	struct ip_set_ext ext = IP_SET_INIT_UEXT(map);
-	u32 ip;
+	u32 ip = 0;
 	int ret = 0;
 
 	if (unlikely(!tb[IPSET_ATTR_IP] ||
@@ -355,7 +355,7 @@ static int
 bitmap_ipmac_create(struct ip_set *set, struct nlattr *tb[],
 		    u32 flags)
 {
-	u32 first_ip, last_ip, cadt_flags = 0;
+	u32 first_ip = 0, last_ip = 0, cadt_flags = 0;
 	u64 elements;
 	struct bitmap_ipmac *map;
 	int ret;
diff --git a/net/netfilter/ipset/ip_set_hash_ip.c b/net/netfilter/ipset/ip_set_hash_ip.c
index de44fca687c3..260c9a80d8a5 100644
--- a/net/netfilter/ipset/ip_set_hash_ip.c
+++ b/net/netfilter/ipset/ip_set_hash_ip.c
@@ -119,7 +119,7 @@ hash_ip4_uadt(struct ip_set *set, struct nlattr *tb[],
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_ip4_elem e = {};
 	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
-	u32 ip, ip_to, hosts;
+	u32 ip = 0, ip_to = 0, hosts;
 	int ret = 0;
 
 	if (unlikely(!tb[IPSET_ATTR_IP] ||
diff --git a/net/netfilter/ipset/ip_set_hash_ipport.c b/net/netfilter/ipset/ip_set_hash_ipport.c
index b514ff4e83ae..64caad35a391 100644
--- a/net/netfilter/ipset/ip_set_hash_ipport.c
+++ b/net/netfilter/ipset/ip_set_hash_ipport.c
@@ -137,7 +137,7 @@ hash_ipport4_uadt(struct ip_set *set, struct nlattr *tb[],
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_ipport4_elem e = { };
 	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
-	u32 ip, ip_to, p = 0, port, port_to;
+	u32 ip, ip_to = 0, p = 0, port, port_to;
 	bool with_ports = false;
 	int ret;
 
diff --git a/net/netfilter/ipset/ip_set_hash_ipportip.c b/net/netfilter/ipset/ip_set_hash_ipportip.c
index d05070d74604..2873bbc20d7a 100644
--- a/net/netfilter/ipset/ip_set_hash_ipportip.c
+++ b/net/netfilter/ipset/ip_set_hash_ipportip.c
@@ -142,7 +142,7 @@ hash_ipportip4_uadt(struct ip_set *set, struct nlattr *tb[],
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_ipportip4_elem e = { };
 	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
-	u32 ip, ip_to, p = 0, port, port_to;
+	u32 ip, ip_to = 0, p = 0, port, port_to;
 	bool with_ports = false;
 	int ret;
 
diff --git a/net/netfilter/ipset/ip_set_hash_ipportnet.c b/net/netfilter/ipset/ip_set_hash_ipportnet.c
index 7d1dede4ab6d..f111558c4597 100644
--- a/net/netfilter/ipset/ip_set_hash_ipportnet.c
+++ b/net/netfilter/ipset/ip_set_hash_ipportnet.c
@@ -196,8 +196,8 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_ipportnet4_elem e = { .cidr = HOST_MASK - 1 };
 	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
-	u32 ip, ip_to, p = 0, port, port_to;
-	u32 ip2_from, ip2_to, ip2_last, ip2;
+	u32 ip = 0, ip_to = 0, p = 0, port, port_to;
+	u32 ip2_from = 0, ip2_to = 0, ip2_last, ip2;
 	bool with_ports = false;
 	u8 cidr;
 	int ret;
diff --git a/net/netfilter/ipset/ip_set_hash_net.c b/net/netfilter/ipset/ip_set_hash_net.c
index 9cb9ef43d941..0a64dad156d9 100644
--- a/net/netfilter/ipset/ip_set_hash_net.c
+++ b/net/netfilter/ipset/ip_set_hash_net.c
@@ -166,7 +166,7 @@ hash_net4_uadt(struct ip_set *set, struct nlattr *tb[],
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_net4_elem e = { .cidr = HOST_MASK };
 	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
-	u32 ip = 0, ip_to, last;
+	u32 ip = 0, ip_to = 0, last;
 	int ret;
 
 	if (unlikely(!tb[IPSET_ATTR_IP] ||
diff --git a/net/netfilter/ipset/ip_set_hash_netiface.c b/net/netfilter/ipset/ip_set_hash_netiface.c
index 2310fc29e89e..846371b08630 100644
--- a/net/netfilter/ipset/ip_set_hash_netiface.c
+++ b/net/netfilter/ipset/ip_set_hash_netiface.c
@@ -320,7 +320,7 @@ hash_netiface4_uadt(struct ip_set *set, struct nlattr *tb[],
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_netiface4_elem e = { .cidr = HOST_MASK, .elem = 1 };
 	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
-	u32 ip = 0, ip_to, last;
+	u32 ip = 0, ip_to = 0, last;
 	char iface[IFNAMSIZ];
 	int ret;
 
diff --git a/net/netfilter/ipset/ip_set_hash_netport.c b/net/netfilter/ipset/ip_set_hash_netport.c
index 1601d489fdbc..d98a685cd916 100644
--- a/net/netfilter/ipset/ip_set_hash_netport.c
+++ b/net/netfilter/ipset/ip_set_hash_netport.c
@@ -187,7 +187,7 @@ hash_netport4_uadt(struct ip_set *set, struct nlattr *tb[],
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_netport4_elem e = { .cidr = HOST_MASK - 1 };
 	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
-	u32 port, port_to, p = 0, ip = 0, ip_to, last;
+	u32 port, port_to, p = 0, ip = 0, ip_to = 0, last;
 	bool with_ports = false;
 	u8 cidr;
 	int ret;
-- 
cgit 


From b8cd97865c903e032db85e5a4f2783928c56f2bd Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Thu, 2 May 2013 10:52:27 +0200
Subject: netfilter: ipset: Use fix sized type for timeout in the extension
 part

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 include/linux/netfilter/ipset/ip_set.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h
index f900f33a5f3d..69aa60487f05 100644
--- a/include/linux/netfilter/ipset/ip_set.h
+++ b/include/linux/netfilter/ipset/ip_set.h
@@ -67,7 +67,7 @@ enum ip_set_offset {
 #define SET_WITH_COUNTER(s)	((s)->extensions & IPSET_EXT_COUNTER)
 
 struct ip_set_ext {
-	unsigned long timeout;
+	u32 timeout;
 	u64 packets;
 	u64 bytes;
 };
-- 
cgit 


From 60b0fe372499f66e0c965dc0594320438a3b711c Mon Sep 17 00:00:00 2001
From: "Anders K. Pedersen" <akp@surftown.com>
Date: Fri, 3 May 2013 23:15:48 +0200
Subject: netfilter: ipset: Support package fragments for IPv4 protos without
 ports

Enable ipset port set types to match IPv4 package fragments for
protocols that doesn't have ports (or the port information isn't
supported by ipset).

For example this allows a hash:ip,port ipset containing the entry
192.168.0.1,gre:0 to match all package fragments for PPTP VPN tunnels
to/from the host. Without this patch only the first package fragment
(with fragment offset 0) was matched, while subsequent fragments wasn't.

This is not possible for IPv6, where the protocol is in the fragmented
part of the package unlike IPv4, where the protocol is in the IP header.

IPPROTO_ICMPV6 is deliberately not included, because it isn't relevant
for IPv4.

Signed-off-by: Anders K. Pedersen <akp@surftown.com>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 net/netfilter/ipset/ip_set_getport.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/net/netfilter/ipset/ip_set_getport.c b/net/netfilter/ipset/ip_set_getport.c
index dac156f819ac..29fb01ddff93 100644
--- a/net/netfilter/ipset/ip_set_getport.c
+++ b/net/netfilter/ipset/ip_set_getport.c
@@ -102,9 +102,25 @@ ip_set_get_ip4_port(const struct sk_buff *skb, bool src,
 	int protocol = iph->protocol;
 
 	/* See comments at tcp_match in ip_tables.c */
-	if (protocol <= 0 || (ntohs(iph->frag_off) & IP_OFFSET))
+	if (protocol <= 0)
 		return false;
 
+	if (ntohs(iph->frag_off) & IP_OFFSET)
+		switch (protocol) {
+		case IPPROTO_TCP:
+		case IPPROTO_SCTP:
+		case IPPROTO_UDP:
+		case IPPROTO_UDPLITE:
+		case IPPROTO_ICMP:
+			/* Port info not available for fragment offset > 0 */
+			return false;
+		default:
+			/* Other protocols doesn't have ports,
+			   so we can match fragments */
+			*proto = protocol;
+			return true;
+		}
+
 	return get_port(skb, protocol, protooff, src, port, proto);
 }
 EXPORT_SYMBOL_GPL(ip_set_get_ip4_port);
-- 
cgit 


From bd3129fc5e8868df74ffa803c7fec527976bbf1c Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Mon, 30 Sep 2013 07:49:47 +0200
Subject: netfilter: ipset: order matches and targets separatedly in xt_set.c

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 net/netfilter/xt_set.c | 188 +++++++++++++++++++++++++------------------------
 1 file changed, 96 insertions(+), 92 deletions(-)

diff --git a/net/netfilter/xt_set.c b/net/netfilter/xt_set.c
index 31790e789e22..2095488684ff 100644
--- a/net/netfilter/xt_set.c
+++ b/net/netfilter/xt_set.c
@@ -109,6 +109,101 @@ set_match_v0_destroy(const struct xt_mtdtor_param *par)
 	ip_set_nfnl_put(info->match_set.index);
 }
 
+/* Revision 1 match */
+
+static bool
+set_match_v1(const struct sk_buff *skb, struct xt_action_param *par)
+{
+	const struct xt_set_info_match_v1 *info = par->matchinfo;
+	ADT_OPT(opt, par->family, info->match_set.dim,
+		info->match_set.flags, 0, UINT_MAX);
+
+	if (opt.flags & IPSET_RETURN_NOMATCH)
+		opt.cmdflags |= IPSET_FLAG_RETURN_NOMATCH;
+
+	return match_set(info->match_set.index, skb, par, &opt,
+			 info->match_set.flags & IPSET_INV_MATCH);
+}
+
+static int
+set_match_v1_checkentry(const struct xt_mtchk_param *par)
+{
+	struct xt_set_info_match_v1 *info = par->matchinfo;
+	ip_set_id_t index;
+
+	index = ip_set_nfnl_get_byindex(info->match_set.index);
+
+	if (index == IPSET_INVALID_ID) {
+		pr_warning("Cannot find set indentified by id %u to match\n",
+			   info->match_set.index);
+		return -ENOENT;
+	}
+	if (info->match_set.dim > IPSET_DIM_MAX) {
+		pr_warning("Protocol error: set match dimension "
+			   "is over the limit!\n");
+		ip_set_nfnl_put(info->match_set.index);
+		return -ERANGE;
+	}
+
+	return 0;
+}
+
+static void
+set_match_v1_destroy(const struct xt_mtdtor_param *par)
+{
+	struct xt_set_info_match_v1 *info = par->matchinfo;
+
+	ip_set_nfnl_put(info->match_set.index);
+}
+
+/* Revision 3 match */
+
+static bool
+match_counter(u64 counter, const struct ip_set_counter_match *info)
+{
+	switch (info->op) {
+	case IPSET_COUNTER_NONE:
+		return true;
+	case IPSET_COUNTER_EQ:
+		return counter == info->value;
+	case IPSET_COUNTER_NE:
+		return counter != info->value;
+	case IPSET_COUNTER_LT:
+		return counter < info->value;
+	case IPSET_COUNTER_GT:
+		return counter > info->value;
+	}
+	return false;
+}
+
+static bool
+set_match_v3(const struct sk_buff *skb, struct xt_action_param *par)
+{
+	const struct xt_set_info_match_v3 *info = par->matchinfo;
+	ADT_OPT(opt, par->family, info->match_set.dim,
+		info->match_set.flags, info->flags, UINT_MAX);
+	int ret;
+
+	if (info->packets.op != IPSET_COUNTER_NONE ||
+	    info->bytes.op != IPSET_COUNTER_NONE)
+		opt.cmdflags |= IPSET_FLAG_MATCH_COUNTERS;
+
+	ret = match_set(info->match_set.index, skb, par, &opt,
+			info->match_set.flags & IPSET_INV_MATCH);
+
+	if (!(ret && opt.cmdflags & IPSET_FLAG_MATCH_COUNTERS))
+		return ret;
+
+	if (!match_counter(opt.ext.packets, &info->packets))
+		return 0;
+	return match_counter(opt.ext.bytes, &info->bytes);
+}
+
+#define set_match_v3_checkentry	set_match_v1_checkentry
+#define set_match_v3_destroy	set_match_v1_destroy
+
+/* Revision 0 interface: backward compatible with netfilter/iptables */
+
 static unsigned int
 set_target_v0(struct sk_buff *skb, const struct xt_action_param *par)
 {
@@ -180,52 +275,7 @@ set_target_v0_destroy(const struct xt_tgdtor_param *par)
 		ip_set_nfnl_put(info->del_set.index);
 }
 
-/* Revision 1 match and target */
-
-static bool
-set_match_v1(const struct sk_buff *skb, struct xt_action_param *par)
-{
-	const struct xt_set_info_match_v1 *info = par->matchinfo;
-	ADT_OPT(opt, par->family, info->match_set.dim,
-		info->match_set.flags, 0, UINT_MAX);
-
-	if (opt.flags & IPSET_RETURN_NOMATCH)
-		opt.cmdflags |= IPSET_FLAG_RETURN_NOMATCH;
-
-	return match_set(info->match_set.index, skb, par, &opt,
-			 info->match_set.flags & IPSET_INV_MATCH);
-}
-
-static int
-set_match_v1_checkentry(const struct xt_mtchk_param *par)
-{
-	struct xt_set_info_match_v1 *info = par->matchinfo;
-	ip_set_id_t index;
-
-	index = ip_set_nfnl_get_byindex(info->match_set.index);
-
-	if (index == IPSET_INVALID_ID) {
-		pr_warning("Cannot find set indentified by id %u to match\n",
-			   info->match_set.index);
-		return -ENOENT;
-	}
-	if (info->match_set.dim > IPSET_DIM_MAX) {
-		pr_warning("Protocol error: set match dimension "
-			   "is over the limit!\n");
-		ip_set_nfnl_put(info->match_set.index);
-		return -ERANGE;
-	}
-
-	return 0;
-}
-
-static void
-set_match_v1_destroy(const struct xt_mtdtor_param *par)
-{
-	struct xt_set_info_match_v1 *info = par->matchinfo;
-
-	ip_set_nfnl_put(info->match_set.index);
-}
+/* Revision 1 target */
 
 static unsigned int
 set_target_v1(struct sk_buff *skb, const struct xt_action_param *par)
@@ -320,52 +370,6 @@ set_target_v2(struct sk_buff *skb, const struct xt_action_param *par)
 #define set_target_v2_checkentry	set_target_v1_checkentry
 #define set_target_v2_destroy		set_target_v1_destroy
 
-/* Revision 3 match */
-
-static bool
-match_counter(u64 counter, const struct ip_set_counter_match *info)
-{
-	switch (info->op) {
-	case IPSET_COUNTER_NONE:
-		return true;
-	case IPSET_COUNTER_EQ:
-		return counter == info->value;
-	case IPSET_COUNTER_NE:
-		return counter != info->value;
-	case IPSET_COUNTER_LT:
-		return counter < info->value;
-	case IPSET_COUNTER_GT:
-		return counter > info->value;
-	}
-	return false;
-}
-
-static bool
-set_match_v3(const struct sk_buff *skb, struct xt_action_param *par)
-{
-	const struct xt_set_info_match_v3 *info = par->matchinfo;
-	ADT_OPT(opt, par->family, info->match_set.dim,
-		info->match_set.flags, info->flags, UINT_MAX);
-	int ret;
-
-	if (info->packets.op != IPSET_COUNTER_NONE ||
-	    info->bytes.op != IPSET_COUNTER_NONE)
-		opt.cmdflags |= IPSET_FLAG_MATCH_COUNTERS;
-
-	ret = match_set(info->match_set.index, skb, par, &opt,
-			info->match_set.flags & IPSET_INV_MATCH);
-
-	if (!(ret && opt.cmdflags & IPSET_FLAG_MATCH_COUNTERS))
-		return ret;
-
-	if (!match_counter(opt.ext.packets, &info->packets))
-		return 0;
-	return match_counter(opt.ext.bytes, &info->bytes);
-}
-
-#define set_match_v3_checkentry	set_match_v1_checkentry
-#define set_match_v3_destroy	set_match_v1_destroy
-
 static struct xt_match set_matches[] __read_mostly = {
 	{
 		.name		= "set",
-- 
cgit 


From 5e04c0c38c90f1f11a0e87800e4c22d4aba1d733 Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Mon, 30 Sep 2013 07:57:18 +0200
Subject: netfilter: ipset: Introduce new operation to get both setname and
 family

ip[6]tables set match and SET target need to know the family of the set
in order to reject adding rules which refer to a set with a non-mathcing
family. Currently such rules are silently accepted and then ignored
instead of generating a clear error message to the user, which is not
helpful.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 include/uapi/linux/netfilter/ipset/ip_set.h |  8 ++++++++
 net/netfilter/ipset/ip_set_core.c           | 17 +++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/include/uapi/linux/netfilter/ipset/ip_set.h b/include/uapi/linux/netfilter/ipset/ip_set.h
index 8024cdf13b70..2b61ac44dcc1 100644
--- a/include/uapi/linux/netfilter/ipset/ip_set.h
+++ b/include/uapi/linux/netfilter/ipset/ip_set.h
@@ -250,6 +250,14 @@ struct ip_set_req_get_set {
 #define IP_SET_OP_GET_BYINDEX	0x00000007	/* Get set name by index */
 /* Uses ip_set_req_get_set */
 
+#define IP_SET_OP_GET_FNAME	0x00000008	/* Get set index and family */
+struct ip_set_req_get_set_family {
+	unsigned int op;
+	unsigned int version;
+	unsigned int family;
+	union ip_set_name_index set;
+};
+
 #define IP_SET_OP_VERSION	0x00000100	/* Ask kernel version */
 struct ip_set_req_version {
 	unsigned int op;
diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
index f2e30fb31e78..428c30a8586f 100644
--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -1788,6 +1788,23 @@ ip_set_sockfn_get(struct sock *sk, int optval, void __user *user, int *len)
 		nfnl_unlock(NFNL_SUBSYS_IPSET);
 		goto copy;
 	}
+	case IP_SET_OP_GET_FNAME: {
+		struct ip_set_req_get_set_family *req_get = data;
+		ip_set_id_t id;
+
+		if (*len != sizeof(struct ip_set_req_get_set_family)) {
+			ret = -EINVAL;
+			goto done;
+		}
+		req_get->set.name[IPSET_MAXNAMELEN - 1] = '\0';
+		nfnl_lock(NFNL_SUBSYS_IPSET);
+		find_set_and_id(req_get->set.name, &id);
+		req_get->set.index = id;
+		if (id != IPSET_INVALID_ID)
+			req_get->family = nfnl_set(id)->family;
+		nfnl_unlock(NFNL_SUBSYS_IPSET);
+		goto copy;
+	}
 	case IP_SET_OP_GET_BYINDEX: {
 		struct ip_set_req_get_set *req_get = data;
 		struct ip_set *set;
-- 
cgit 


From a04d8b6bd9113f3e7f0c216dcaa3c1ad498f2a96 Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Mon, 30 Sep 2013 09:05:54 +0200
Subject: netfilter: ipset: Prepare ipset to support multiple networks for hash
 types

In order to support hash:net,net, hash:net,port,net etc. types,
arrays are introduced for the book-keeping of existing cidr sizes
and network numbers in a set.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 include/linux/netfilter/ipset/ip_set.h      |  2 +
 net/netfilter/ipset/ip_set_hash_gen.h       | 78 +++++++++++++++--------------
 net/netfilter/ipset/ip_set_hash_ipportnet.c |  4 +-
 net/netfilter/ipset/ip_set_hash_net.c       |  4 +-
 net/netfilter/ipset/ip_set_hash_netiface.c  |  4 +-
 net/netfilter/ipset/ip_set_hash_netport.c   |  4 +-
 6 files changed, 50 insertions(+), 46 deletions(-)

diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h
index 69aa60487f05..56012a3431b2 100644
--- a/include/linux/netfilter/ipset/ip_set.h
+++ b/include/linux/netfilter/ipset/ip_set.h
@@ -398,6 +398,8 @@ bitmap_bytes(u32 a, u32 b)
 	{ .bytes = ULLONG_MAX, .packets = ULLONG_MAX,	\
 	  .timeout = (map)->timeout }
 
+#define IP_SET_INIT_CIDR(a, b) ((a) ? (a) : (b))
+
 #define IPSET_CONCAT(a, b)		a##b
 #define IPSET_TOKEN(a, b)		IPSET_CONCAT(a, b)
 
diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index 68b9ccebabaa..a8332404d9b4 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -77,10 +77,14 @@ struct htable {
 
 #define hbucket(h, i)		(&((h)->bucket[i]))
 
+#ifndef IPSET_NET_COUNT
+#define IPSET_NET_COUNT		1
+#endif
+
 /* Book-keeping of the prefixes added to the set */
 struct net_prefixes {
-	u8 cidr;		/* the different cidr values in the set */
-	u32 nets;		/* number of elements per cidr */
+	u32 nets[IPSET_NET_COUNT]; /* number of elements per cidr */
+	u8 cidr[IPSET_NET_COUNT];  /* the different cidr values in the set */
 };
 
 /* Compute the hash table size */
@@ -165,13 +169,13 @@ hbucket_elem_add(struct hbucket *n, u8 ahash_max, size_t dsize)
 #define SET_HOST_MASK(family)	(family == AF_INET ? 32 : 128)
 
 #ifdef IP_SET_HASH_WITH_MULTI
-#define NETS_LENGTH(family)	(SET_HOST_MASK(family) + 1)
+#define NLEN(family)		(SET_HOST_MASK(family) + 1)
 #else
-#define NETS_LENGTH(family)	SET_HOST_MASK(family)
+#define NLEN(family)		SET_HOST_MASK(family)
 #endif
 
 #else
-#define NETS_LENGTH(family)	0
+#define NLEN(family)		0
 #endif /* IP_SET_HASH_WITH_NETS */
 
 #define ext_timeout(e, h)	\
@@ -296,49 +300,49 @@ struct htype {
 /* Network cidr size book keeping when the hash stores different
  * sized networks */
 static void
-mtype_add_cidr(struct htype *h, u8 cidr, u8 nets_length)
+mtype_add_cidr(struct htype *h, u8 cidr, u8 nets_length, u8 n)
 {
 	int i, j;
 
 	/* Add in increasing prefix order, so larger cidr first */
-	for (i = 0, j = -1; i < nets_length && h->nets[i].nets; i++) {
+	for (i = 0, j = -1; i < nets_length && h->nets[i].nets[n]; i++) {
 		if (j != -1)
 			continue;
-		else if (h->nets[i].cidr < cidr)
+		else if (h->nets[i].cidr[n] < cidr)
 			j = i;
-		else if (h->nets[i].cidr == cidr) {
-			h->nets[i].nets++;
+		else if (h->nets[i].cidr[n] == cidr) {
+			h->nets[i].nets[n]++;
 			return;
 		}
 	}
 	if (j != -1) {
 		for (; i > j; i--) {
-			h->nets[i].cidr = h->nets[i - 1].cidr;
-			h->nets[i].nets = h->nets[i - 1].nets;
+			h->nets[i].cidr[n] = h->nets[i - 1].cidr[n];
+			h->nets[i].nets[n] = h->nets[i - 1].nets[n];
 		}
 	}
-	h->nets[i].cidr = cidr;
-	h->nets[i].nets = 1;
+	h->nets[i].cidr[n] = cidr;
+	h->nets[i].nets[n] = 1;
 }
 
 static void
-mtype_del_cidr(struct htype *h, u8 cidr, u8 nets_length)
+mtype_del_cidr(struct htype *h, u8 cidr, u8 nets_length, u8 n)
 {
 	u8 i, j, net_end = nets_length - 1;
 
 	for (i = 0; i < nets_length; i++) {
-	        if (h->nets[i].cidr != cidr)
+	        if (h->nets[i].cidr[n] != cidr)
 	                continue;
-                if (h->nets[i].nets > 1 || i == net_end ||
-                    h->nets[i + 1].nets == 0) {
-                        h->nets[i].nets--;
+                if (h->nets[i].nets[n] > 1 || i == net_end ||
+                    h->nets[i + 1].nets[n] == 0) {
+                        h->nets[i].nets[n]--;
                         return;
                 }
-                for (j = i; j < net_end && h->nets[j].nets; j++) {
-		        h->nets[j].cidr = h->nets[j + 1].cidr;
-		        h->nets[j].nets = h->nets[j + 1].nets;
+                for (j = i; j < net_end && h->nets[j].nets[n]; j++) {
+		        h->nets[j].cidr[n] = h->nets[j + 1].cidr[n];
+		        h->nets[j].nets[n] = h->nets[j + 1].nets[n];
                 }
-                h->nets[j].nets = 0;
+                h->nets[j].nets[n] = 0;
                 return;
 	}
 }
@@ -382,8 +386,7 @@ mtype_flush(struct ip_set *set)
 		}
 	}
 #ifdef IP_SET_HASH_WITH_NETS
-	memset(h->nets, 0, sizeof(struct net_prefixes)
-			   * NETS_LENGTH(set->family));
+	memset(h->nets, 0, sizeof(struct net_prefixes) * NLEN(set->family));
 #endif
 	h->elements = 0;
 }
@@ -459,7 +462,7 @@ mtype_expire(struct htype *h, u8 nets_length, size_t dsize)
 				pr_debug("expired %u/%u\n", i, j);
 #ifdef IP_SET_HASH_WITH_NETS
 				mtype_del_cidr(h, CIDR(data->cidr),
-					       nets_length);
+					       nets_length, 0);
 #endif
 				if (j != n->pos - 1)
 					/* Not last one */
@@ -494,7 +497,7 @@ mtype_gc(unsigned long ul_set)
 
 	pr_debug("called\n");
 	write_lock_bh(&set->lock);
-	mtype_expire(h, NETS_LENGTH(set->family), h->dsize);
+	mtype_expire(h, NLEN(set->family), h->dsize);
 	write_unlock_bh(&set->lock);
 
 	h->gc.expires = jiffies + IPSET_GC_PERIOD(h->timeout) * HZ;
@@ -523,8 +526,7 @@ mtype_resize(struct ip_set *set, bool retried)
 	if (SET_WITH_TIMEOUT(set) && !retried) {
 		i = h->elements;
 		write_lock_bh(&set->lock);
-		mtype_expire(set->data, NETS_LENGTH(set->family),
-			     h->dsize);
+		mtype_expire(set->data, NLEN(set->family), h->dsize);
 		write_unlock_bh(&set->lock);
 		if (h->elements < i)
 			return 0;
@@ -607,7 +609,7 @@ mtype_add(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 
 	if (SET_WITH_TIMEOUT(set) && h->elements >= h->maxelem)
 		/* FIXME: when set is full, we slow down here */
-		mtype_expire(h, NETS_LENGTH(set->family), h->dsize);
+		mtype_expire(h, NLEN(set->family), h->dsize);
 
 	if (h->elements >= h->maxelem) {
 		if (net_ratelimit())
@@ -645,8 +647,8 @@ reuse_slot:
 		/* Fill out reused slot */
 		data = ahash_data(n, j, h->dsize);
 #ifdef IP_SET_HASH_WITH_NETS
-		mtype_del_cidr(h, CIDR(data->cidr), NETS_LENGTH(set->family));
-		mtype_add_cidr(h, CIDR(d->cidr), NETS_LENGTH(set->family));
+		mtype_del_cidr(h, CIDR(data->cidr), NLEN(set->family), 0);
+		mtype_add_cidr(h, CIDR(d->cidr), NLEN(set->family), 0);
 #endif
 	} else {
 		/* Use/create a new slot */
@@ -659,7 +661,7 @@ reuse_slot:
 		}
 		data = ahash_data(n, n->pos++, h->dsize);
 #ifdef IP_SET_HASH_WITH_NETS
-		mtype_add_cidr(h, CIDR(d->cidr), NETS_LENGTH(set->family));
+		mtype_add_cidr(h, CIDR(d->cidr), NLEN(set->family), 0);
 #endif
 		h->elements++;
 	}
@@ -711,7 +713,7 @@ mtype_del(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 		n->pos--;
 		h->elements--;
 #ifdef IP_SET_HASH_WITH_NETS
-		mtype_del_cidr(h, CIDR(d->cidr), NETS_LENGTH(set->family));
+		mtype_del_cidr(h, CIDR(d->cidr), NLEN(set->family), 0);
 #endif
 		if (n->pos + AHASH_INIT_SIZE < n->size) {
 			void *tmp = kzalloc((n->size - AHASH_INIT_SIZE)
@@ -760,11 +762,11 @@ mtype_test_cidrs(struct ip_set *set, struct mtype_elem *d,
 	struct mtype_elem *data;
 	int i, j = 0;
 	u32 key, multi = 0;
-	u8 nets_length = NETS_LENGTH(set->family);
+	u8 nets_length = NLEN(set->family);
 
 	pr_debug("test by nets\n");
-	for (; j < nets_length && h->nets[j].nets && !multi; j++) {
-		mtype_data_netmask(d, h->nets[j].cidr);
+	for (; j < nets_length && h->nets[j].nets[0] && !multi; j++) {
+		mtype_data_netmask(d, h->nets[j].cidr[0]);
 		key = HKEY(d, h->initval, t->htable_bits);
 		n = hbucket(t, key);
 		for (i = 0; i < n->pos; i++) {
@@ -839,7 +841,7 @@ mtype_head(struct ip_set *set, struct sk_buff *skb)
 	size_t memsize;
 
 	t = rcu_dereference_bh_nfnl(h->table);
-	memsize = mtype_ahash_memsize(h, t, NETS_LENGTH(set->family));
+	memsize = mtype_ahash_memsize(h, t, NLEN(set->family));
 
 	nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
 	if (!nested)
diff --git a/net/netfilter/ipset/ip_set_hash_ipportnet.c b/net/netfilter/ipset/ip_set_hash_ipportnet.c
index f111558c4597..6ce5a8e2c44e 100644
--- a/net/netfilter/ipset/ip_set_hash_ipportnet.c
+++ b/net/netfilter/ipset/ip_set_hash_ipportnet.c
@@ -170,7 +170,7 @@ hash_ipportnet4_kadt(struct ip_set *set, const struct sk_buff *skb,
 	const struct hash_ipportnet *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_ipportnet4_elem e = {
-		.cidr = h->nets[0].cidr ? h->nets[0].cidr - 1 : HOST_MASK - 1
+		.cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK) - 1,
 	};
 	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
 
@@ -454,7 +454,7 @@ hash_ipportnet6_kadt(struct ip_set *set, const struct sk_buff *skb,
 	const struct hash_ipportnet *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_ipportnet6_elem e = {
-		.cidr = h->nets[0].cidr ? h->nets[0].cidr - 1 : HOST_MASK - 1
+		.cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK) - 1,
 	};
 	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
 
diff --git a/net/netfilter/ipset/ip_set_hash_net.c b/net/netfilter/ipset/ip_set_hash_net.c
index 0a64dad156d9..ec1c7dc10489 100644
--- a/net/netfilter/ipset/ip_set_hash_net.c
+++ b/net/netfilter/ipset/ip_set_hash_net.c
@@ -143,7 +143,7 @@ hash_net4_kadt(struct ip_set *set, const struct sk_buff *skb,
 	const struct hash_net *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_net4_elem e = {
-		.cidr = h->nets[0].cidr ? h->nets[0].cidr : HOST_MASK
+		.cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
 	};
 	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
 
@@ -338,7 +338,7 @@ hash_net6_kadt(struct ip_set *set, const struct sk_buff *skb,
 	const struct hash_net *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_net6_elem e = {
-		.cidr = h->nets[0].cidr ? h->nets[0].cidr : HOST_MASK
+		.cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
 	};
 	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
 
diff --git a/net/netfilter/ipset/ip_set_hash_netiface.c b/net/netfilter/ipset/ip_set_hash_netiface.c
index 846371b08630..814b4e31a7f8 100644
--- a/net/netfilter/ipset/ip_set_hash_netiface.c
+++ b/net/netfilter/ipset/ip_set_hash_netiface.c
@@ -265,7 +265,7 @@ hash_netiface4_kadt(struct ip_set *set, const struct sk_buff *skb,
 	struct hash_netiface *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_netiface4_elem e = {
-		.cidr = h->nets[0].cidr ? h->nets[0].cidr : HOST_MASK,
+		.cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
 		.elem = 1,
 	};
 	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
@@ -534,7 +534,7 @@ hash_netiface6_kadt(struct ip_set *set, const struct sk_buff *skb,
 	struct hash_netiface *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_netiface6_elem e = {
-		.cidr = h->nets[0].cidr ? h->nets[0].cidr : HOST_MASK,
+		.cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
 		.elem = 1,
 	};
 	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
diff --git a/net/netfilter/ipset/ip_set_hash_netport.c b/net/netfilter/ipset/ip_set_hash_netport.c
index d98a685cd916..3bd923d3f179 100644
--- a/net/netfilter/ipset/ip_set_hash_netport.c
+++ b/net/netfilter/ipset/ip_set_hash_netport.c
@@ -162,7 +162,7 @@ hash_netport4_kadt(struct ip_set *set, const struct sk_buff *skb,
 	const struct hash_netport *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_netport4_elem e = {
-		.cidr = h->nets[0].cidr ? h->nets[0].cidr - 1 : HOST_MASK - 1
+		.cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK) - 1,
 	};
 	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
 
@@ -407,7 +407,7 @@ hash_netport6_kadt(struct ip_set *set, const struct sk_buff *skb,
 	const struct hash_netport *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_netport6_elem e = {
-		.cidr = h->nets[0].cidr ? h->nets[0].cidr - 1 : HOST_MASK - 1,
+		.cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK) - 1,
 	};
 	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
 
-- 
cgit 


From f925f7056920213889c5e61445f9529f1a86ae41 Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Fri, 6 Sep 2013 22:31:40 +0200
Subject: netfilter: ipset: Rename extension offset ids to extension ids

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 include/linux/netfilter/ipset/ip_set.h    | 16 ++++++++--------
 net/netfilter/ipset/ip_set_bitmap_gen.h   |  4 ++--
 net/netfilter/ipset/ip_set_bitmap_ip.c    | 10 +++++-----
 net/netfilter/ipset/ip_set_bitmap_ipmac.c | 10 +++++-----
 net/netfilter/ipset/ip_set_bitmap_port.c  | 10 +++++-----
 net/netfilter/ipset/ip_set_hash_gen.h     | 22 +++++++++++-----------
 net/netfilter/ipset/ip_set_list_set.c     | 14 +++++++-------
 7 files changed, 43 insertions(+), 43 deletions(-)

diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h
index 56012a3431b2..b4db7912bf0d 100644
--- a/include/linux/netfilter/ipset/ip_set.h
+++ b/include/linux/netfilter/ipset/ip_set.h
@@ -56,20 +56,20 @@ enum ip_set_extension {
 	IPSET_EXT_COUNTER = (1 << IPSET_EXT_BIT_COUNTER),
 };
 
-/* Extension offsets */
-enum ip_set_offset {
-	IPSET_OFFSET_TIMEOUT = 0,
-	IPSET_OFFSET_COUNTER,
-	IPSET_OFFSET_MAX,
-};
-
 #define SET_WITH_TIMEOUT(s)	((s)->extensions & IPSET_EXT_TIMEOUT)
 #define SET_WITH_COUNTER(s)	((s)->extensions & IPSET_EXT_COUNTER)
 
+/* Extension id, in size order */
+enum ip_set_ext_id {
+	IPSET_EXT_ID_COUNTER = 0,
+	IPSET_EXT_ID_TIMEOUT,
+	IPSET_EXT_ID_MAX,
+};
+
 struct ip_set_ext {
-	u32 timeout;
 	u64 packets;
 	u64 bytes;
+	u32 timeout;
 };
 
 struct ip_set;
diff --git a/net/netfilter/ipset/ip_set_bitmap_gen.h b/net/netfilter/ipset/ip_set_bitmap_gen.h
index d39905e7e881..889a929b908f 100644
--- a/net/netfilter/ipset/ip_set_bitmap_gen.h
+++ b/net/netfilter/ipset/ip_set_bitmap_gen.h
@@ -33,9 +33,9 @@
 #define mtype			MTYPE
 
 #define ext_timeout(e, m)	\
-	(unsigned long *)((e) + (m)->offset[IPSET_OFFSET_TIMEOUT])
+	(unsigned long *)((e) + (m)->offset[IPSET_EXT_ID_TIMEOUT])
 #define ext_counter(e, m)	\
-	(struct ip_set_counter *)((e) + (m)->offset[IPSET_OFFSET_COUNTER])
+	(struct ip_set_counter *)((e) + (m)->offset[IPSET_EXT_ID_COUNTER])
 #define get_ext(map, id)	((map)->extensions + (map)->dsize * (id))
 
 static void
diff --git a/net/netfilter/ipset/ip_set_bitmap_ip.c b/net/netfilter/ipset/ip_set_bitmap_ip.c
index ce99d2652d47..2ee210ef49a2 100644
--- a/net/netfilter/ipset/ip_set_bitmap_ip.c
+++ b/net/netfilter/ipset/ip_set_bitmap_ip.c
@@ -45,7 +45,7 @@ struct bitmap_ip {
 	u32 hosts;		/* number of hosts in a subnet */
 	size_t memsize;		/* members size */
 	size_t dsize;		/* extensions struct size */
-	size_t offset[IPSET_OFFSET_MAX]; /* Offsets to extensions */
+	size_t offset[IPSET_EXT_ID_MAX]; /* Offsets to extensions */
 	u8 netmask;		/* subnet netmask */
 	u32 timeout;		/* timeout parameter */
 	struct timer_list gc;	/* garbage collection */
@@ -342,9 +342,9 @@ bitmap_ip_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 		set->extensions |= IPSET_EXT_COUNTER;
 		if (tb[IPSET_ATTR_TIMEOUT]) {
 			map->dsize = sizeof(struct bitmap_ipct_elem);
-			map->offset[IPSET_OFFSET_TIMEOUT] =
+			map->offset[IPSET_EXT_ID_TIMEOUT] =
 				offsetof(struct bitmap_ipct_elem, timeout);
-			map->offset[IPSET_OFFSET_COUNTER] =
+			map->offset[IPSET_EXT_ID_COUNTER] =
 				offsetof(struct bitmap_ipct_elem, counter);
 
 			if (!init_map_ip(set, map, first_ip, last_ip,
@@ -360,7 +360,7 @@ bitmap_ip_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 			bitmap_ip_gc_init(set, bitmap_ip_gc);
 		} else {
 			map->dsize = sizeof(struct bitmap_ipc_elem);
-			map->offset[IPSET_OFFSET_COUNTER] =
+			map->offset[IPSET_EXT_ID_COUNTER] =
 				offsetof(struct bitmap_ipc_elem, counter);
 
 			if (!init_map_ip(set, map, first_ip, last_ip,
@@ -371,7 +371,7 @@ bitmap_ip_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 		}
 	} else if (tb[IPSET_ATTR_TIMEOUT]) {
 		map->dsize = sizeof(struct bitmap_ipt_elem);
-		map->offset[IPSET_OFFSET_TIMEOUT] =
+		map->offset[IPSET_EXT_ID_TIMEOUT] =
 			offsetof(struct bitmap_ipt_elem, timeout);
 
 		if (!init_map_ip(set, map, first_ip, last_ip,
diff --git a/net/netfilter/ipset/ip_set_bitmap_ipmac.c b/net/netfilter/ipset/ip_set_bitmap_ipmac.c
index 6d5bad93026b..e711875ea452 100644
--- a/net/netfilter/ipset/ip_set_bitmap_ipmac.c
+++ b/net/netfilter/ipset/ip_set_bitmap_ipmac.c
@@ -52,7 +52,7 @@ struct bitmap_ipmac {
 	struct timer_list gc;	/* garbage collector */
 	size_t memsize;		/* members size */
 	size_t dsize;		/* size of element */
-	size_t offset[IPSET_OFFSET_MAX]; /* Offsets to extensions */
+	size_t offset[IPSET_EXT_ID_MAX]; /* Offsets to extensions */
 };
 
 /* ADT structure for generic function args */
@@ -405,9 +405,9 @@ bitmap_ipmac_create(struct ip_set *set, struct nlattr *tb[],
 		set->extensions |= IPSET_EXT_COUNTER;
 		if (tb[IPSET_ATTR_TIMEOUT]) {
 			map->dsize = sizeof(struct bitmap_ipmacct_elem);
-			map->offset[IPSET_OFFSET_TIMEOUT] =
+			map->offset[IPSET_EXT_ID_TIMEOUT] =
 				offsetof(struct bitmap_ipmacct_elem, timeout);
-			map->offset[IPSET_OFFSET_COUNTER] =
+			map->offset[IPSET_EXT_ID_COUNTER] =
 				offsetof(struct bitmap_ipmacct_elem, counter);
 
 			if (!init_map_ipmac(set, map, first_ip, last_ip,
@@ -421,7 +421,7 @@ bitmap_ipmac_create(struct ip_set *set, struct nlattr *tb[],
 			bitmap_ipmac_gc_init(set, bitmap_ipmac_gc);
 		} else {
 			map->dsize = sizeof(struct bitmap_ipmacc_elem);
-			map->offset[IPSET_OFFSET_COUNTER] =
+			map->offset[IPSET_EXT_ID_COUNTER] =
 				offsetof(struct bitmap_ipmacc_elem, counter);
 
 			if (!init_map_ipmac(set, map, first_ip, last_ip,
@@ -432,7 +432,7 @@ bitmap_ipmac_create(struct ip_set *set, struct nlattr *tb[],
 		}
 	} else if (tb[IPSET_ATTR_TIMEOUT]) {
 		map->dsize = sizeof(struct bitmap_ipmact_elem);
-		map->offset[IPSET_OFFSET_TIMEOUT] =
+		map->offset[IPSET_EXT_ID_TIMEOUT] =
 			offsetof(struct bitmap_ipmact_elem, timeout);
 
 		if (!init_map_ipmac(set, map, first_ip, last_ip, elements)) {
diff --git a/net/netfilter/ipset/ip_set_bitmap_port.c b/net/netfilter/ipset/ip_set_bitmap_port.c
index b22048965d2a..bebc137a5737 100644
--- a/net/netfilter/ipset/ip_set_bitmap_port.c
+++ b/net/netfilter/ipset/ip_set_bitmap_port.c
@@ -39,7 +39,7 @@ struct bitmap_port {
 	u32 elements;		/* number of max elements in the set */
 	size_t memsize;		/* members size */
 	size_t dsize;		/* extensions struct size */
-	size_t offset[IPSET_OFFSET_MAX]; /* Offsets to extensions */
+	size_t offset[IPSET_EXT_ID_MAX]; /* Offsets to extensions */
 	u32 timeout;		/* timeout parameter */
 	struct timer_list gc;	/* garbage collection */
 };
@@ -282,9 +282,9 @@ bitmap_port_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 		set->extensions |= IPSET_EXT_COUNTER;
 		if (tb[IPSET_ATTR_TIMEOUT]) {
 			map->dsize = sizeof(struct bitmap_portct_elem);
-			map->offset[IPSET_OFFSET_TIMEOUT] =
+			map->offset[IPSET_EXT_ID_TIMEOUT] =
 				offsetof(struct bitmap_portct_elem, timeout);
-			map->offset[IPSET_OFFSET_COUNTER] =
+			map->offset[IPSET_EXT_ID_COUNTER] =
 				offsetof(struct bitmap_portct_elem, counter);
 			if (!init_map_port(set, map, first_port, last_port)) {
 				kfree(map);
@@ -297,7 +297,7 @@ bitmap_port_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 			bitmap_port_gc_init(set, bitmap_port_gc);
 		} else {
 			map->dsize = sizeof(struct bitmap_portc_elem);
-			map->offset[IPSET_OFFSET_COUNTER] =
+			map->offset[IPSET_EXT_ID_COUNTER] =
 				offsetof(struct bitmap_portc_elem, counter);
 			if (!init_map_port(set, map, first_port, last_port)) {
 				kfree(map);
@@ -306,7 +306,7 @@ bitmap_port_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 		}
 	} else if (tb[IPSET_ATTR_TIMEOUT]) {
 		map->dsize = sizeof(struct bitmap_portt_elem);
-		map->offset[IPSET_OFFSET_TIMEOUT] =
+		map->offset[IPSET_EXT_ID_TIMEOUT] =
 			offsetof(struct bitmap_portt_elem, timeout);
 		if (!init_map_port(set, map, first_port, last_port)) {
 			kfree(map);
diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index a8332404d9b4..e4db9250f337 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -179,9 +179,9 @@ hbucket_elem_add(struct hbucket *n, u8 ahash_max, size_t dsize)
 #endif /* IP_SET_HASH_WITH_NETS */
 
 #define ext_timeout(e, h)	\
-(unsigned long *)(((void *)(e)) + (h)->offset[IPSET_OFFSET_TIMEOUT])
+(unsigned long *)(((void *)(e)) + (h)->offset[IPSET_EXT_ID_TIMEOUT])
 #define ext_counter(e, h)	\
-(struct ip_set_counter *)(((void *)(e)) + (h)->offset[IPSET_OFFSET_COUNTER])
+(struct ip_set_counter *)(((void *)(e)) + (h)->offset[IPSET_EXT_ID_COUNTER])
 
 #endif /* _IP_SET_HASH_GEN_H */
 
@@ -278,7 +278,7 @@ struct htype {
 	u32 initval;		/* random jhash init value */
 	u32 timeout;		/* timeout value, if enabled */
 	size_t dsize;		/* data struct size */
-	size_t offset[IPSET_OFFSET_MAX]; /* Offsets to extensions */
+	size_t offset[IPSET_EXT_ID_MAX]; /* Offsets to extensions */
 	struct timer_list gc;	/* garbage collection when timeout enabled */
 	struct mtype_elem next; /* temporary storage for uadd */
 #ifdef IP_SET_HASH_WITH_MULTI
@@ -1059,11 +1059,11 @@ IPSET_TOKEN(HTYPE, _create)(struct ip_set *set, struct nlattr *tb[], u32 flags)
 			if (set->family == NFPROTO_IPV4) {
 				h->dsize = sizeof(struct
 					IPSET_TOKEN(HTYPE, 4ct_elem));
-				h->offset[IPSET_OFFSET_TIMEOUT] =
+				h->offset[IPSET_EXT_ID_TIMEOUT] =
 					offsetof(struct
 						IPSET_TOKEN(HTYPE, 4ct_elem),
 						timeout);
-				h->offset[IPSET_OFFSET_COUNTER] =
+				h->offset[IPSET_EXT_ID_COUNTER] =
 					offsetof(struct
 						IPSET_TOKEN(HTYPE, 4ct_elem),
 						counter);
@@ -1072,11 +1072,11 @@ IPSET_TOKEN(HTYPE, _create)(struct ip_set *set, struct nlattr *tb[], u32 flags)
 			} else {
 				h->dsize = sizeof(struct
 					IPSET_TOKEN(HTYPE, 6ct_elem));
-				h->offset[IPSET_OFFSET_TIMEOUT] =
+				h->offset[IPSET_EXT_ID_TIMEOUT] =
 					offsetof(struct
 						IPSET_TOKEN(HTYPE, 6ct_elem),
 						timeout);
-				h->offset[IPSET_OFFSET_COUNTER] =
+				h->offset[IPSET_EXT_ID_COUNTER] =
 					offsetof(struct
 						IPSET_TOKEN(HTYPE, 6ct_elem),
 						counter);
@@ -1088,7 +1088,7 @@ IPSET_TOKEN(HTYPE, _create)(struct ip_set *set, struct nlattr *tb[], u32 flags)
 				h->dsize =
 					sizeof(struct
 						IPSET_TOKEN(HTYPE, 4c_elem));
-				h->offset[IPSET_OFFSET_COUNTER] =
+				h->offset[IPSET_EXT_ID_COUNTER] =
 					offsetof(struct
 						IPSET_TOKEN(HTYPE, 4c_elem),
 						counter);
@@ -1096,7 +1096,7 @@ IPSET_TOKEN(HTYPE, _create)(struct ip_set *set, struct nlattr *tb[], u32 flags)
 				h->dsize =
 					sizeof(struct
 						IPSET_TOKEN(HTYPE, 6c_elem));
-				h->offset[IPSET_OFFSET_COUNTER] =
+				h->offset[IPSET_EXT_ID_COUNTER] =
 					offsetof(struct
 						IPSET_TOKEN(HTYPE, 6c_elem),
 						counter);
@@ -1107,14 +1107,14 @@ IPSET_TOKEN(HTYPE, _create)(struct ip_set *set, struct nlattr *tb[], u32 flags)
 		set->extensions |= IPSET_EXT_TIMEOUT;
 		if (set->family == NFPROTO_IPV4) {
 			h->dsize = sizeof(struct IPSET_TOKEN(HTYPE, 4t_elem));
-			h->offset[IPSET_OFFSET_TIMEOUT] =
+			h->offset[IPSET_EXT_ID_TIMEOUT] =
 				offsetof(struct IPSET_TOKEN(HTYPE, 4t_elem),
 					 timeout);
 			IPSET_TOKEN(HTYPE, 4_gc_init)(set,
 				IPSET_TOKEN(HTYPE, 4_gc));
 		} else {
 			h->dsize = sizeof(struct IPSET_TOKEN(HTYPE, 6t_elem));
-			h->offset[IPSET_OFFSET_TIMEOUT] =
+			h->offset[IPSET_EXT_ID_TIMEOUT] =
 				offsetof(struct IPSET_TOKEN(HTYPE, 6t_elem),
 					 timeout);
 			IPSET_TOKEN(HTYPE, 6_gc_init)(set,
diff --git a/net/netfilter/ipset/ip_set_list_set.c b/net/netfilter/ipset/ip_set_list_set.c
index a9e301f6e093..0ed19b5e675e 100644
--- a/net/netfilter/ipset/ip_set_list_set.c
+++ b/net/netfilter/ipset/ip_set_list_set.c
@@ -59,7 +59,7 @@ struct set_adt_elem {
 /* Type structure */
 struct list_set {
 	size_t dsize;		/* element size */
-	size_t offset[IPSET_OFFSET_MAX]; /* Offsets to extensions */
+	size_t offset[IPSET_EXT_ID_MAX]; /* Offsets to extensions */
 	u32 size;		/* size of set list array */
 	u32 timeout;		/* timeout value */
 	struct timer_list gc;	/* garbage collection */
@@ -73,9 +73,9 @@ list_set_elem(const struct list_set *map, u32 id)
 }
 
 #define ext_timeout(e, m)	\
-(unsigned long *)((void *)(e) + (m)->offset[IPSET_OFFSET_TIMEOUT])
+(unsigned long *)((void *)(e) + (m)->offset[IPSET_EXT_ID_TIMEOUT])
 #define ext_counter(e, m)	\
-(struct ip_set_counter *)((void *)(e) + (m)->offset[IPSET_OFFSET_COUNTER])
+(struct ip_set_counter *)((void *)(e) + (m)->offset[IPSET_EXT_ID_COUNTER])
 
 static int
 list_set_ktest(struct ip_set *set, const struct sk_buff *skb,
@@ -667,9 +667,9 @@ list_set_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 			if (!map)
 				return -ENOMEM;
 			set->extensions |= IPSET_EXT_TIMEOUT;
-			map->offset[IPSET_OFFSET_TIMEOUT] =
+			map->offset[IPSET_EXT_ID_TIMEOUT] =
 				offsetof(struct setct_elem, timeout);
-			map->offset[IPSET_OFFSET_COUNTER] =
+			map->offset[IPSET_EXT_ID_COUNTER] =
 				offsetof(struct setct_elem, counter);
 			list_set_gc_init(set, list_set_gc);
 		} else {
@@ -677,7 +677,7 @@ list_set_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 					    sizeof(struct setc_elem), 0);
 			if (!map)
 				return -ENOMEM;
-			map->offset[IPSET_OFFSET_COUNTER] =
+			map->offset[IPSET_EXT_ID_COUNTER] =
 				offsetof(struct setc_elem, counter);
 		}
 	} else if (tb[IPSET_ATTR_TIMEOUT]) {
@@ -686,7 +686,7 @@ list_set_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 		if (!map)
 			return -ENOMEM;
 		set->extensions |= IPSET_EXT_TIMEOUT;
-		map->offset[IPSET_OFFSET_TIMEOUT] =
+		map->offset[IPSET_EXT_ID_TIMEOUT] =
 			offsetof(struct sett_elem, timeout);
 		list_set_gc_init(set, list_set_gc);
 	} else {
-- 
cgit 


From ca134ce86451f3f5ac45ffbf1494a1f42110bf93 Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Sat, 7 Sep 2013 00:10:07 +0200
Subject: netfilter: ipset: Move extension data to set structure

Default timeout and extension offsets are moved to struct set, because
all set types supports all extensions and it makes possible to generalize
extension support.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 include/linux/netfilter/ipset/ip_set.h         |  29 ++++--
 include/linux/netfilter/ipset/ip_set_timeout.h |   4 +-
 net/netfilter/ipset/ip_set_bitmap_gen.h        |  59 ++++++------
 net/netfilter/ipset/ip_set_bitmap_ip.c         |  45 +++++----
 net/netfilter/ipset/ip_set_bitmap_ipmac.c      |  64 ++++++-------
 net/netfilter/ipset/ip_set_bitmap_port.c       |  44 ++++-----
 net/netfilter/ipset/ip_set_hash_gen.h          | 127 ++++++++++++-------------
 net/netfilter/ipset/ip_set_hash_ip.c           |   8 +-
 net/netfilter/ipset/ip_set_hash_ipport.c       |  10 +-
 net/netfilter/ipset/ip_set_hash_ipportip.c     |  10 +-
 net/netfilter/ipset/ip_set_hash_ipportnet.c    |  14 +--
 net/netfilter/ipset/ip_set_hash_net.c          |   9 +-
 net/netfilter/ipset/ip_set_hash_netiface.c     |   8 +-
 net/netfilter/ipset/ip_set_hash_netport.c      |   8 +-
 net/netfilter/ipset/ip_set_list_set.c          | 116 ++++++++++------------
 15 files changed, 266 insertions(+), 289 deletions(-)

diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h
index b4db7912bf0d..992a2f58dbd3 100644
--- a/include/linux/netfilter/ipset/ip_set.h
+++ b/include/linux/netfilter/ipset/ip_set.h
@@ -72,6 +72,16 @@ struct ip_set_ext {
 	u32 timeout;
 };
 
+struct ip_set_counter {
+	atomic64_t bytes;
+	atomic64_t packets;
+};
+
+#define ext_timeout(e, s)	\
+(unsigned long *)(((void *)(e)) + (s)->offset[IPSET_EXT_ID_TIMEOUT])
+#define ext_counter(e, s)	\
+(struct ip_set_counter *)(((void *)(e)) + (s)->offset[IPSET_EXT_ID_COUNTER])
+
 struct ip_set;
 
 typedef int (*ipset_adtfn)(struct ip_set *set, void *value,
@@ -179,15 +189,16 @@ struct ip_set {
 	u8 revision;
 	/* Extensions */
 	u8 extensions;
+	/* Default timeout value, if enabled */
+	u32 timeout;
+	/* Element data size */
+	size_t dsize;
+	/* Offsets to extensions in elements */
+	size_t offset[IPSET_EXT_ID_MAX];
 	/* The type specific data */
 	void *data;
 };
 
-struct ip_set_counter {
-	atomic64_t bytes;
-	atomic64_t packets;
-};
-
 static inline void
 ip_set_add_bytes(u64 bytes, struct ip_set_counter *counter)
 {
@@ -390,13 +401,13 @@ bitmap_bytes(u32 a, u32 b)
 
 #include <linux/netfilter/ipset/ip_set_timeout.h>
 
-#define IP_SET_INIT_KEXT(skb, opt, map)			\
+#define IP_SET_INIT_KEXT(skb, opt, set)			\
 	{ .bytes = (skb)->len, .packets = 1,		\
-	  .timeout = ip_set_adt_opt_timeout(opt, map) }
+	  .timeout = ip_set_adt_opt_timeout(opt, set) }
 
-#define IP_SET_INIT_UEXT(map)				\
+#define IP_SET_INIT_UEXT(set)				\
 	{ .bytes = ULLONG_MAX, .packets = ULLONG_MAX,	\
-	  .timeout = (map)->timeout }
+	  .timeout = (set)->timeout }
 
 #define IP_SET_INIT_CIDR(a, b) ((a) ? (a) : (b))
 
diff --git a/include/linux/netfilter/ipset/ip_set_timeout.h b/include/linux/netfilter/ipset/ip_set_timeout.h
index 3aac04167ca7..83c2f9e0886c 100644
--- a/include/linux/netfilter/ipset/ip_set_timeout.h
+++ b/include/linux/netfilter/ipset/ip_set_timeout.h
@@ -23,8 +23,8 @@
 /* Set is defined with timeout support: timeout value may be 0 */
 #define IPSET_NO_TIMEOUT	UINT_MAX
 
-#define ip_set_adt_opt_timeout(opt, map)	\
-((opt)->ext.timeout != IPSET_NO_TIMEOUT ? (opt)->ext.timeout : (map)->timeout)
+#define ip_set_adt_opt_timeout(opt, set)	\
+((opt)->ext.timeout != IPSET_NO_TIMEOUT ? (opt)->ext.timeout : (set)->timeout)
 
 static inline unsigned int
 ip_set_timeout_uget(struct nlattr *tb)
diff --git a/net/netfilter/ipset/ip_set_bitmap_gen.h b/net/netfilter/ipset/ip_set_bitmap_gen.h
index 889a929b908f..f32ddbca3923 100644
--- a/net/netfilter/ipset/ip_set_bitmap_gen.h
+++ b/net/netfilter/ipset/ip_set_bitmap_gen.h
@@ -32,11 +32,7 @@
 #define mtype_gc		IPSET_TOKEN(MTYPE, _gc)
 #define mtype			MTYPE
 
-#define ext_timeout(e, m)	\
-	(unsigned long *)((e) + (m)->offset[IPSET_EXT_ID_TIMEOUT])
-#define ext_counter(e, m)	\
-	(struct ip_set_counter *)((e) + (m)->offset[IPSET_EXT_ID_COUNTER])
-#define get_ext(map, id)	((map)->extensions + (map)->dsize * (id))
+#define get_ext(set, map, id)	((map)->extensions + (set)->dsize * (id))
 
 static void
 mtype_gc_init(struct ip_set *set, void (*gc)(unsigned long ul_set))
@@ -46,7 +42,7 @@ mtype_gc_init(struct ip_set *set, void (*gc)(unsigned long ul_set))
 	init_timer(&map->gc);
 	map->gc.data = (unsigned long) set;
 	map->gc.function = gc;
-	map->gc.expires = jiffies + IPSET_GC_PERIOD(map->timeout) * HZ;
+	map->gc.expires = jiffies + IPSET_GC_PERIOD(set->timeout) * HZ;
 	add_timer(&map->gc);
 }
 
@@ -59,7 +55,7 @@ mtype_destroy(struct ip_set *set)
 		del_timer_sync(&map->gc);
 
 	ip_set_free(map->members);
-	if (map->dsize)
+	if (set->dsize)
 		ip_set_free(map->extensions);
 	kfree(map);
 
@@ -88,9 +84,9 @@ mtype_head(struct ip_set *set, struct sk_buff *skb)
 	    nla_put_net32(skb, IPSET_ATTR_MEMSIZE,
 			  htonl(sizeof(*map) +
 				map->memsize +
-				map->dsize * map->elements)) ||
+				set->dsize * map->elements)) ||
 	    (SET_WITH_TIMEOUT(set) &&
-	     nla_put_net32(skb, IPSET_ATTR_TIMEOUT, htonl(map->timeout))) ||
+	     nla_put_net32(skb, IPSET_ATTR_TIMEOUT, htonl(set->timeout))) ||
 	    (SET_WITH_COUNTER(set) &&
 	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS,
 			   htonl(IPSET_FLAG_WITH_COUNTERS))))
@@ -108,16 +104,16 @@ mtype_test(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 {
 	struct mtype *map = set->data;
 	const struct mtype_adt_elem *e = value;
-	void *x = get_ext(map, e->id);
-	int ret = mtype_do_test(e, map);
+	void *x = get_ext(set, map, e->id);
+	int ret = mtype_do_test(e, map, set->dsize);
 
 	if (ret <= 0)
 		return ret;
 	if (SET_WITH_TIMEOUT(set) &&
-	    ip_set_timeout_expired(ext_timeout(x, map)))
+	    ip_set_timeout_expired(ext_timeout(x, set)))
 		return 0;
 	if (SET_WITH_COUNTER(set))
-		ip_set_update_counter(ext_counter(x, map), ext, mext, flags);
+		ip_set_update_counter(ext_counter(x, set), ext, mext, flags);
 	return 1;
 }
 
@@ -127,12 +123,12 @@ mtype_add(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 {
 	struct mtype *map = set->data;
 	const struct mtype_adt_elem *e = value;
-	void *x = get_ext(map, e->id);
-	int ret = mtype_do_add(e, map, flags);
+	void *x = get_ext(set, map, e->id);
+	int ret = mtype_do_add(e, map, flags, set->dsize);
 
 	if (ret == IPSET_ADD_FAILED) {
 		if (SET_WITH_TIMEOUT(set) &&
-		    ip_set_timeout_expired(ext_timeout(x, map)))
+		    ip_set_timeout_expired(ext_timeout(x, set)))
 			ret = 0;
 		else if (!(flags & IPSET_FLAG_EXIST))
 			return -IPSET_ERR_EXIST;
@@ -140,13 +136,13 @@ mtype_add(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 
 	if (SET_WITH_TIMEOUT(set))
 #ifdef IP_SET_BITMAP_STORED_TIMEOUT
-		mtype_add_timeout(ext_timeout(x, map), e, ext, map, ret);
+		mtype_add_timeout(ext_timeout(x, set), e, ext, set, map, ret);
 #else
-		ip_set_timeout_set(ext_timeout(x, map), ext->timeout);
+		ip_set_timeout_set(ext_timeout(x, set), ext->timeout);
 #endif
 
 	if (SET_WITH_COUNTER(set))
-		ip_set_init_counter(ext_counter(x, map), ext);
+		ip_set_init_counter(ext_counter(x, set), ext);
 	return 0;
 }
 
@@ -156,11 +152,11 @@ mtype_del(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 {
 	struct mtype *map = set->data;
 	const struct mtype_adt_elem *e = value;
-	const void *x = get_ext(map, e->id);
+	const void *x = get_ext(set, map, e->id);
 
 	if (mtype_do_del(e, map) ||
 	    (SET_WITH_TIMEOUT(set) &&
-	     ip_set_timeout_expired(ext_timeout(x, map))))
+	     ip_set_timeout_expired(ext_timeout(x, set))))
 		return -IPSET_ERR_EXIST;
 
 	return 0;
@@ -180,13 +176,13 @@ mtype_list(const struct ip_set *set,
 		return -EMSGSIZE;
 	for (; cb->args[2] < map->elements; cb->args[2]++) {
 		id = cb->args[2];
-		x = get_ext(map, id);
+		x = get_ext(set, map, id);
 		if (!test_bit(id, map->members) ||
 		    (SET_WITH_TIMEOUT(set) &&
 #ifdef IP_SET_BITMAP_STORED_TIMEOUT
 		     mtype_is_filled((const struct mtype_elem *) x) &&
 #endif
-		     ip_set_timeout_expired(ext_timeout(x, map))))
+		     ip_set_timeout_expired(ext_timeout(x, set))))
 			continue;
 		nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
 		if (!nested) {
@@ -196,23 +192,24 @@ mtype_list(const struct ip_set *set,
 			} else
 				goto nla_put_failure;
 		}
-		if (mtype_do_list(skb, map, id))
+		if (mtype_do_list(skb, map, id, set->dsize))
 			goto nla_put_failure;
 		if (SET_WITH_TIMEOUT(set)) {
 #ifdef IP_SET_BITMAP_STORED_TIMEOUT
 			if (nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
 					  htonl(ip_set_timeout_stored(map, id,
-							ext_timeout(x, map)))))
+							ext_timeout(x, set),
+							set->dsize))))
 				goto nla_put_failure;
 #else
 			if (nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
 					  htonl(ip_set_timeout_get(
-							ext_timeout(x, map)))))
+							ext_timeout(x, set)))))
 				goto nla_put_failure;
 #endif
 		}
 		if (SET_WITH_COUNTER(set) &&
-		    ip_set_put_counter(skb, ext_counter(x, map)))
+		    ip_set_put_counter(skb, ext_counter(x, set)))
 			goto nla_put_failure;
 		ipset_nest_end(skb, nested);
 	}
@@ -245,14 +242,14 @@ mtype_gc(unsigned long ul_set)
 	 * but adding/deleting new entries is locked out */
 	read_lock_bh(&set->lock);
 	for (id = 0; id < map->elements; id++)
-		if (mtype_gc_test(id, map)) {
-			x = get_ext(map, id);
-			if (ip_set_timeout_expired(ext_timeout(x, map)))
+		if (mtype_gc_test(id, map, set->dsize)) {
+			x = get_ext(set, map, id);
+			if (ip_set_timeout_expired(ext_timeout(x, set)))
 				clear_bit(id, map->members);
 		}
 	read_unlock_bh(&set->lock);
 
-	map->gc.expires = jiffies + IPSET_GC_PERIOD(map->timeout) * HZ;
+	map->gc.expires = jiffies + IPSET_GC_PERIOD(set->timeout) * HZ;
 	add_timer(&map->gc);
 }
 
diff --git a/net/netfilter/ipset/ip_set_bitmap_ip.c b/net/netfilter/ipset/ip_set_bitmap_ip.c
index 2ee210ef49a2..363022edb8fb 100644
--- a/net/netfilter/ipset/ip_set_bitmap_ip.c
+++ b/net/netfilter/ipset/ip_set_bitmap_ip.c
@@ -44,10 +44,7 @@ struct bitmap_ip {
 	u32 elements;		/* number of max elements in the set */
 	u32 hosts;		/* number of hosts in a subnet */
 	size_t memsize;		/* members size */
-	size_t dsize;		/* extensions struct size */
-	size_t offset[IPSET_EXT_ID_MAX]; /* Offsets to extensions */
 	u8 netmask;		/* subnet netmask */
-	u32 timeout;		/* timeout parameter */
 	struct timer_list gc;	/* garbage collection */
 };
 
@@ -65,20 +62,21 @@ ip_to_id(const struct bitmap_ip *m, u32 ip)
 /* Common functions */
 
 static inline int
-bitmap_ip_do_test(const struct bitmap_ip_adt_elem *e, struct bitmap_ip *map)
+bitmap_ip_do_test(const struct bitmap_ip_adt_elem *e,
+		  struct bitmap_ip *map, size_t dsize)
 {
 	return !!test_bit(e->id, map->members);
 }
 
 static inline int
-bitmap_ip_gc_test(u16 id, const struct bitmap_ip *map)
+bitmap_ip_gc_test(u16 id, const struct bitmap_ip *map, size_t dsize)
 {
 	return !!test_bit(id, map->members);
 }
 
 static inline int
 bitmap_ip_do_add(const struct bitmap_ip_adt_elem *e, struct bitmap_ip *map,
-		 u32 flags)
+		 u32 flags, size_t dsize)
 {
 	return !!test_and_set_bit(e->id, map->members);
 }
@@ -90,7 +88,8 @@ bitmap_ip_do_del(const struct bitmap_ip_adt_elem *e, struct bitmap_ip *map)
 }
 
 static inline int
-bitmap_ip_do_list(struct sk_buff *skb, const struct bitmap_ip *map, u32 id)
+bitmap_ip_do_list(struct sk_buff *skb, const struct bitmap_ip *map, u32 id,
+		  size_t dsize)
 {
 	return nla_put_ipaddr4(skb, IPSET_ATTR_IP,
 			htonl(map->first_ip + id * map->hosts));
@@ -113,7 +112,7 @@ bitmap_ip_kadt(struct ip_set *set, const struct sk_buff *skb,
 	struct bitmap_ip *map = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct bitmap_ip_adt_elem e = { };
-	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, map);
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 	u32 ip;
 
 	ip = ntohl(ip4addr(skb, opt->flags & IPSET_DIM_ONE_SRC));
@@ -133,7 +132,7 @@ bitmap_ip_uadt(struct ip_set *set, struct nlattr *tb[],
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	u32 ip = 0, ip_to = 0;
 	struct bitmap_ip_adt_elem e = { };
-	struct ip_set_ext ext = IP_SET_INIT_UEXT(map);
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	int ret = 0;
 
 	if (unlikely(!tb[IPSET_ATTR_IP] ||
@@ -200,7 +199,7 @@ bitmap_ip_same_set(const struct ip_set *a, const struct ip_set *b)
 	return x->first_ip == y->first_ip &&
 	       x->last_ip == y->last_ip &&
 	       x->netmask == y->netmask &&
-	       x->timeout == y->timeout &&
+	       a->timeout == b->timeout &&
 	       a->extensions == b->extensions;
 }
 
@@ -240,8 +239,8 @@ init_map_ip(struct ip_set *set, struct bitmap_ip *map,
 	map->members = ip_set_alloc(map->memsize);
 	if (!map->members)
 		return false;
-	if (map->dsize) {
-		map->extensions = ip_set_alloc(map->dsize * elements);
+	if (set->dsize) {
+		map->extensions = ip_set_alloc(set->dsize * elements);
 		if (!map->extensions) {
 			kfree(map->members);
 			return false;
@@ -252,7 +251,7 @@ init_map_ip(struct ip_set *set, struct bitmap_ip *map,
 	map->elements = elements;
 	map->hosts = hosts;
 	map->netmask = netmask;
-	map->timeout = IPSET_NO_TIMEOUT;
+	set->timeout = IPSET_NO_TIMEOUT;
 
 	set->data = map;
 	set->family = NFPROTO_IPV4;
@@ -341,10 +340,10 @@ bitmap_ip_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 	if (cadt_flags & IPSET_FLAG_WITH_COUNTERS) {
 		set->extensions |= IPSET_EXT_COUNTER;
 		if (tb[IPSET_ATTR_TIMEOUT]) {
-			map->dsize = sizeof(struct bitmap_ipct_elem);
-			map->offset[IPSET_EXT_ID_TIMEOUT] =
+			set->dsize = sizeof(struct bitmap_ipct_elem);
+			set->offset[IPSET_EXT_ID_TIMEOUT] =
 				offsetof(struct bitmap_ipct_elem, timeout);
-			map->offset[IPSET_EXT_ID_COUNTER] =
+			set->offset[IPSET_EXT_ID_COUNTER] =
 				offsetof(struct bitmap_ipct_elem, counter);
 
 			if (!init_map_ip(set, map, first_ip, last_ip,
@@ -353,14 +352,14 @@ bitmap_ip_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 				return -ENOMEM;
 			}
 
-			map->timeout = ip_set_timeout_uget(
+			set->timeout = ip_set_timeout_uget(
 				tb[IPSET_ATTR_TIMEOUT]);
 			set->extensions |= IPSET_EXT_TIMEOUT;
 
 			bitmap_ip_gc_init(set, bitmap_ip_gc);
 		} else {
-			map->dsize = sizeof(struct bitmap_ipc_elem);
-			map->offset[IPSET_EXT_ID_COUNTER] =
+			set->dsize = sizeof(struct bitmap_ipc_elem);
+			set->offset[IPSET_EXT_ID_COUNTER] =
 				offsetof(struct bitmap_ipc_elem, counter);
 
 			if (!init_map_ip(set, map, first_ip, last_ip,
@@ -370,8 +369,8 @@ bitmap_ip_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 			}
 		}
 	} else if (tb[IPSET_ATTR_TIMEOUT]) {
-		map->dsize = sizeof(struct bitmap_ipt_elem);
-		map->offset[IPSET_EXT_ID_TIMEOUT] =
+		set->dsize = sizeof(struct bitmap_ipt_elem);
+		set->offset[IPSET_EXT_ID_TIMEOUT] =
 			offsetof(struct bitmap_ipt_elem, timeout);
 
 		if (!init_map_ip(set, map, first_ip, last_ip,
@@ -380,12 +379,12 @@ bitmap_ip_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 			return -ENOMEM;
 		}
 
-		map->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
+		set->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
 		set->extensions |= IPSET_EXT_TIMEOUT;
 
 		bitmap_ip_gc_init(set, bitmap_ip_gc);
 	} else {
-		map->dsize = 0;
+		set->dsize = 0;
 		if (!init_map_ip(set, map, first_ip, last_ip,
 				 elements, hosts, netmask)) {
 			kfree(map);
diff --git a/net/netfilter/ipset/ip_set_bitmap_ipmac.c b/net/netfilter/ipset/ip_set_bitmap_ipmac.c
index e711875ea452..74576cb19264 100644
--- a/net/netfilter/ipset/ip_set_bitmap_ipmac.c
+++ b/net/netfilter/ipset/ip_set_bitmap_ipmac.c
@@ -48,11 +48,8 @@ struct bitmap_ipmac {
 	u32 first_ip;		/* host byte order, included in range */
 	u32 last_ip;		/* host byte order, included in range */
 	u32 elements;		/* number of max elements in the set */
-	u32 timeout;		/* timeout value */
-	struct timer_list gc;	/* garbage collector */
 	size_t memsize;		/* members size */
-	size_t dsize;		/* size of element */
-	size_t offset[IPSET_EXT_ID_MAX]; /* Offsets to extensions */
+	struct timer_list gc;	/* garbage collector */
 };
 
 /* ADT structure for generic function args */
@@ -82,13 +79,13 @@ get_elem(void *extensions, u16 id, size_t dsize)
 
 static inline int
 bitmap_ipmac_do_test(const struct bitmap_ipmac_adt_elem *e,
-		     const struct bitmap_ipmac *map)
+		     const struct bitmap_ipmac *map, size_t dsize)
 {
 	const struct bitmap_ipmac_elem *elem;
 
 	if (!test_bit(e->id, map->members))
 		return 0;
-	elem = get_elem(map->extensions, e->id, map->dsize);
+	elem = get_elem(map->extensions, e->id, dsize);
 	if (elem->filled == MAC_FILLED)
 		return e->ether == NULL ||
 		       ether_addr_equal(e->ether, elem->ether);
@@ -97,13 +94,13 @@ bitmap_ipmac_do_test(const struct bitmap_ipmac_adt_elem *e,
 }
 
 static inline int
-bitmap_ipmac_gc_test(u16 id, const struct bitmap_ipmac *map)
+bitmap_ipmac_gc_test(u16 id, const struct bitmap_ipmac *map, size_t dsize)
 {
 	const struct bitmap_ipmac_elem *elem;
 
 	if (!test_bit(id, map->members))
 		return 0;
-	elem = get_elem(map->extensions, id, map->dsize);
+	elem = get_elem(map->extensions, id, dsize);
 	/* Timer not started for the incomplete elements */
 	return elem->filled == MAC_FILLED;
 }
@@ -117,13 +114,13 @@ bitmap_ipmac_is_filled(const struct bitmap_ipmac_elem *elem)
 static inline int
 bitmap_ipmac_add_timeout(unsigned long *timeout,
 			 const struct bitmap_ipmac_adt_elem *e,
-			 const struct ip_set_ext *ext,
+			 const struct ip_set_ext *ext, struct ip_set *set,
 			 struct bitmap_ipmac *map, int mode)
 {
 	u32 t = ext->timeout;
 
 	if (mode == IPSET_ADD_START_STORED_TIMEOUT) {
-		if (t == map->timeout)
+		if (t == set->timeout)
 			/* Timeout was not specified, get stored one */
 			t = *timeout;
 		ip_set_timeout_set(timeout, t);
@@ -142,11 +139,11 @@ bitmap_ipmac_add_timeout(unsigned long *timeout,
 
 static inline int
 bitmap_ipmac_do_add(const struct bitmap_ipmac_adt_elem *e,
-		    struct bitmap_ipmac *map, u32 flags)
+		    struct bitmap_ipmac *map, u32 flags, size_t dsize)
 {
 	struct bitmap_ipmac_elem *elem;
 
-	elem = get_elem(map->extensions, e->id, map->dsize);
+	elem = get_elem(map->extensions, e->id, dsize);
 	if (test_and_set_bit(e->id, map->members)) {
 		if (elem->filled == MAC_FILLED) {
 			if (e->ether && (flags & IPSET_FLAG_EXIST))
@@ -179,10 +176,11 @@ bitmap_ipmac_do_del(const struct bitmap_ipmac_adt_elem *e,
 }
 
 static inline unsigned long
-ip_set_timeout_stored(struct bitmap_ipmac *map, u32 id, unsigned long *timeout)
+ip_set_timeout_stored(struct bitmap_ipmac *map, u32 id, unsigned long *timeout,
+		      size_t dsize)
 {
 	const struct bitmap_ipmac_elem *elem =
-		get_elem(map->extensions, id, map->dsize);
+		get_elem(map->extensions, id, dsize);
 
 	return elem->filled == MAC_FILLED ? ip_set_timeout_get(timeout) :
 					    *timeout;
@@ -190,10 +188,10 @@ ip_set_timeout_stored(struct bitmap_ipmac *map, u32 id, unsigned long *timeout)
 
 static inline int
 bitmap_ipmac_do_list(struct sk_buff *skb, const struct bitmap_ipmac *map,
-		     u32 id)
+		     u32 id, size_t dsize)
 {
 	const struct bitmap_ipmac_elem *elem =
-		get_elem(map->extensions, id, map->dsize);
+		get_elem(map->extensions, id, dsize);
 
 	return nla_put_ipaddr4(skb, IPSET_ATTR_IP,
 			       htonl(map->first_ip + id)) ||
@@ -216,7 +214,7 @@ bitmap_ipmac_kadt(struct ip_set *set, const struct sk_buff *skb,
 	struct bitmap_ipmac *map = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct bitmap_ipmac_adt_elem e = {};
-	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, map);
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 	u32 ip;
 
 	/* MAC can be src only */
@@ -245,7 +243,7 @@ bitmap_ipmac_uadt(struct ip_set *set, struct nlattr *tb[],
 	const struct bitmap_ipmac *map = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct bitmap_ipmac_adt_elem e = {};
-	struct ip_set_ext ext = IP_SET_INIT_UEXT(map);
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	u32 ip = 0;
 	int ret = 0;
 
@@ -285,7 +283,7 @@ bitmap_ipmac_same_set(const struct ip_set *a, const struct ip_set *b)
 
 	return x->first_ip == y->first_ip &&
 	       x->last_ip == y->last_ip &&
-	       x->timeout == y->timeout &&
+	       a->timeout == b->timeout &&
 	       a->extensions == b->extensions;
 }
 
@@ -330,11 +328,11 @@ static bool
 init_map_ipmac(struct ip_set *set, struct bitmap_ipmac *map,
 	       u32 first_ip, u32 last_ip, u32 elements)
 {
-	map->members = ip_set_alloc((last_ip - first_ip + 1) * map->dsize);
+	map->members = ip_set_alloc((last_ip - first_ip + 1) * set->dsize);
 	if (!map->members)
 		return false;
-	if (map->dsize) {
-		map->extensions = ip_set_alloc(map->dsize * elements);
+	if (set->dsize) {
+		map->extensions = ip_set_alloc(set->dsize * elements);
 		if (!map->extensions) {
 			kfree(map->members);
 			return false;
@@ -343,7 +341,7 @@ init_map_ipmac(struct ip_set *set, struct bitmap_ipmac *map,
 	map->first_ip = first_ip;
 	map->last_ip = last_ip;
 	map->elements = elements;
-	map->timeout = IPSET_NO_TIMEOUT;
+	set->timeout = IPSET_NO_TIMEOUT;
 
 	set->data = map;
 	set->family = NFPROTO_IPV4;
@@ -404,10 +402,10 @@ bitmap_ipmac_create(struct ip_set *set, struct nlattr *tb[],
 	if (cadt_flags & IPSET_FLAG_WITH_COUNTERS) {
 		set->extensions |= IPSET_EXT_COUNTER;
 		if (tb[IPSET_ATTR_TIMEOUT]) {
-			map->dsize = sizeof(struct bitmap_ipmacct_elem);
-			map->offset[IPSET_EXT_ID_TIMEOUT] =
+			set->dsize = sizeof(struct bitmap_ipmacct_elem);
+			set->offset[IPSET_EXT_ID_TIMEOUT] =
 				offsetof(struct bitmap_ipmacct_elem, timeout);
-			map->offset[IPSET_EXT_ID_COUNTER] =
+			set->offset[IPSET_EXT_ID_COUNTER] =
 				offsetof(struct bitmap_ipmacct_elem, counter);
 
 			if (!init_map_ipmac(set, map, first_ip, last_ip,
@@ -415,13 +413,13 @@ bitmap_ipmac_create(struct ip_set *set, struct nlattr *tb[],
 				kfree(map);
 				return -ENOMEM;
 			}
-			map->timeout = ip_set_timeout_uget(
+			set->timeout = ip_set_timeout_uget(
 				tb[IPSET_ATTR_TIMEOUT]);
 			set->extensions |= IPSET_EXT_TIMEOUT;
 			bitmap_ipmac_gc_init(set, bitmap_ipmac_gc);
 		} else {
-			map->dsize = sizeof(struct bitmap_ipmacc_elem);
-			map->offset[IPSET_EXT_ID_COUNTER] =
+			set->dsize = sizeof(struct bitmap_ipmacc_elem);
+			set->offset[IPSET_EXT_ID_COUNTER] =
 				offsetof(struct bitmap_ipmacc_elem, counter);
 
 			if (!init_map_ipmac(set, map, first_ip, last_ip,
@@ -431,19 +429,19 @@ bitmap_ipmac_create(struct ip_set *set, struct nlattr *tb[],
 			}
 		}
 	} else if (tb[IPSET_ATTR_TIMEOUT]) {
-		map->dsize = sizeof(struct bitmap_ipmact_elem);
-		map->offset[IPSET_EXT_ID_TIMEOUT] =
+		set->dsize = sizeof(struct bitmap_ipmact_elem);
+		set->offset[IPSET_EXT_ID_TIMEOUT] =
 			offsetof(struct bitmap_ipmact_elem, timeout);
 
 		if (!init_map_ipmac(set, map, first_ip, last_ip, elements)) {
 			kfree(map);
 			return -ENOMEM;
 		}
-		map->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
+		set->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
 		set->extensions |= IPSET_EXT_TIMEOUT;
 		bitmap_ipmac_gc_init(set, bitmap_ipmac_gc);
 	} else {
-		map->dsize = sizeof(struct bitmap_ipmac_elem);
+		set->dsize = sizeof(struct bitmap_ipmac_elem);
 
 		if (!init_map_ipmac(set, map, first_ip, last_ip, elements)) {
 			kfree(map);
diff --git a/net/netfilter/ipset/ip_set_bitmap_port.c b/net/netfilter/ipset/ip_set_bitmap_port.c
index bebc137a5737..71da31935499 100644
--- a/net/netfilter/ipset/ip_set_bitmap_port.c
+++ b/net/netfilter/ipset/ip_set_bitmap_port.c
@@ -38,9 +38,6 @@ struct bitmap_port {
 	u16 last_port;		/* host byte order, included in range */
 	u32 elements;		/* number of max elements in the set */
 	size_t memsize;		/* members size */
-	size_t dsize;		/* extensions struct size */
-	size_t offset[IPSET_EXT_ID_MAX]; /* Offsets to extensions */
-	u32 timeout;		/* timeout parameter */
 	struct timer_list gc;	/* garbage collection */
 };
 
@@ -59,20 +56,20 @@ port_to_id(const struct bitmap_port *m, u16 port)
 
 static inline int
 bitmap_port_do_test(const struct bitmap_port_adt_elem *e,
-		    const struct bitmap_port *map)
+		    const struct bitmap_port *map, size_t dsize)
 {
 	return !!test_bit(e->id, map->members);
 }
 
 static inline int
-bitmap_port_gc_test(u16 id, const struct bitmap_port *map)
+bitmap_port_gc_test(u16 id, const struct bitmap_port *map, size_t dsize)
 {
 	return !!test_bit(id, map->members);
 }
 
 static inline int
 bitmap_port_do_add(const struct bitmap_port_adt_elem *e,
-		   struct bitmap_port *map, u32 flags)
+		   struct bitmap_port *map, u32 flags, size_t dsize)
 {
 	return !!test_and_set_bit(e->id, map->members);
 }
@@ -85,7 +82,8 @@ bitmap_port_do_del(const struct bitmap_port_adt_elem *e,
 }
 
 static inline int
-bitmap_port_do_list(struct sk_buff *skb, const struct bitmap_port *map, u32 id)
+bitmap_port_do_list(struct sk_buff *skb, const struct bitmap_port *map, u32 id,
+		    size_t dsize)
 {
 	return nla_put_net16(skb, IPSET_ATTR_PORT,
 			     htons(map->first_port + id));
@@ -106,7 +104,7 @@ bitmap_port_kadt(struct ip_set *set, const struct sk_buff *skb,
 	struct bitmap_port *map = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct bitmap_port_adt_elem e = {};
-	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, map);
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 	__be16 __port;
 	u16 port = 0;
 
@@ -131,7 +129,7 @@ bitmap_port_uadt(struct ip_set *set, struct nlattr *tb[],
 	struct bitmap_port *map = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct bitmap_port_adt_elem e = {};
-	struct ip_set_ext ext = IP_SET_INIT_UEXT(map);
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	u32 port;	/* wraparound */
 	u16 port_to;
 	int ret = 0;
@@ -191,7 +189,7 @@ bitmap_port_same_set(const struct ip_set *a, const struct ip_set *b)
 
 	return x->first_port == y->first_port &&
 	       x->last_port == y->last_port &&
-	       x->timeout == y->timeout &&
+	       a->timeout == b->timeout &&
 	       a->extensions == b->extensions;
 }
 
@@ -230,8 +228,8 @@ init_map_port(struct ip_set *set, struct bitmap_port *map,
 	map->members = ip_set_alloc(map->memsize);
 	if (!map->members)
 		return false;
-	if (map->dsize) {
-		map->extensions = ip_set_alloc(map->dsize * map->elements);
+	if (set->dsize) {
+		map->extensions = ip_set_alloc(set->dsize * map->elements);
 		if (!map->extensions) {
 			kfree(map->members);
 			return false;
@@ -239,7 +237,7 @@ init_map_port(struct ip_set *set, struct bitmap_port *map,
 	}
 	map->first_port = first_port;
 	map->last_port = last_port;
-	map->timeout = IPSET_NO_TIMEOUT;
+	set->timeout = IPSET_NO_TIMEOUT;
 
 	set->data = map;
 	set->family = NFPROTO_UNSPEC;
@@ -281,23 +279,23 @@ bitmap_port_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 	if (cadt_flags & IPSET_FLAG_WITH_COUNTERS) {
 		set->extensions |= IPSET_EXT_COUNTER;
 		if (tb[IPSET_ATTR_TIMEOUT]) {
-			map->dsize = sizeof(struct bitmap_portct_elem);
-			map->offset[IPSET_EXT_ID_TIMEOUT] =
+			set->dsize = sizeof(struct bitmap_portct_elem);
+			set->offset[IPSET_EXT_ID_TIMEOUT] =
 				offsetof(struct bitmap_portct_elem, timeout);
-			map->offset[IPSET_EXT_ID_COUNTER] =
+			set->offset[IPSET_EXT_ID_COUNTER] =
 				offsetof(struct bitmap_portct_elem, counter);
 			if (!init_map_port(set, map, first_port, last_port)) {
 				kfree(map);
 				return -ENOMEM;
 			}
 
-			map->timeout =
+			set->timeout =
 				ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
 			set->extensions |= IPSET_EXT_TIMEOUT;
 			bitmap_port_gc_init(set, bitmap_port_gc);
 		} else {
-			map->dsize = sizeof(struct bitmap_portc_elem);
-			map->offset[IPSET_EXT_ID_COUNTER] =
+			set->dsize = sizeof(struct bitmap_portc_elem);
+			set->offset[IPSET_EXT_ID_COUNTER] =
 				offsetof(struct bitmap_portc_elem, counter);
 			if (!init_map_port(set, map, first_port, last_port)) {
 				kfree(map);
@@ -305,19 +303,19 @@ bitmap_port_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 			}
 		}
 	} else if (tb[IPSET_ATTR_TIMEOUT]) {
-		map->dsize = sizeof(struct bitmap_portt_elem);
-		map->offset[IPSET_EXT_ID_TIMEOUT] =
+		set->dsize = sizeof(struct bitmap_portt_elem);
+		set->offset[IPSET_EXT_ID_TIMEOUT] =
 			offsetof(struct bitmap_portt_elem, timeout);
 		if (!init_map_port(set, map, first_port, last_port)) {
 			kfree(map);
 			return -ENOMEM;
 		}
 
-		map->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
+		set->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
 		set->extensions |= IPSET_EXT_TIMEOUT;
 		bitmap_port_gc_init(set, bitmap_port_gc);
 	} else {
-		map->dsize = 0;
+		set->dsize = 0;
 		if (!init_map_port(set, map, first_port, last_port)) {
 			kfree(map);
 			return -ENOMEM;
diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index e4db9250f337..0cb840e1f8ae 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -178,11 +178,6 @@ hbucket_elem_add(struct hbucket *n, u8 ahash_max, size_t dsize)
 #define NLEN(family)		0
 #endif /* IP_SET_HASH_WITH_NETS */
 
-#define ext_timeout(e, h)	\
-(unsigned long *)(((void *)(e)) + (h)->offset[IPSET_EXT_ID_TIMEOUT])
-#define ext_counter(e, h)	\
-(struct ip_set_counter *)(((void *)(e)) + (h)->offset[IPSET_EXT_ID_COUNTER])
-
 #endif /* _IP_SET_HASH_GEN_H */
 
 /* Family dependent templates */
@@ -276,9 +271,6 @@ struct htype {
 	u32 maxelem;		/* max elements in the hash */
 	u32 elements;		/* current element (vs timeout) */
 	u32 initval;		/* random jhash init value */
-	u32 timeout;		/* timeout value, if enabled */
-	size_t dsize;		/* data struct size */
-	size_t offset[IPSET_EXT_ID_MAX]; /* Offsets to extensions */
 	struct timer_list gc;	/* garbage collection when timeout enabled */
 	struct mtype_elem next; /* temporary storage for uadd */
 #ifdef IP_SET_HASH_WITH_MULTI
@@ -351,7 +343,7 @@ mtype_del_cidr(struct htype *h, u8 cidr, u8 nets_length, u8 n)
 /* Calculate the actual memory size of the set data */
 static size_t
 mtype_ahash_memsize(const struct htype *h, const struct htable *t,
-		    u8 nets_length)
+		    u8 nets_length, size_t dsize)
 {
 	u32 i;
 	size_t memsize = sizeof(*h)
@@ -362,7 +354,7 @@ mtype_ahash_memsize(const struct htype *h, const struct htable *t,
 			 + jhash_size(t->htable_bits) * sizeof(struct hbucket);
 
 	for (i = 0; i < jhash_size(t->htable_bits); i++)
-		memsize += t->bucket[i].size * h->dsize;
+		memsize += t->bucket[i].size * dsize;
 
 	return memsize;
 }
@@ -417,10 +409,10 @@ mtype_gc_init(struct ip_set *set, void (*gc)(unsigned long ul_set))
 	init_timer(&h->gc);
 	h->gc.data = (unsigned long) set;
 	h->gc.function = gc;
-	h->gc.expires = jiffies + IPSET_GC_PERIOD(h->timeout) * HZ;
+	h->gc.expires = jiffies + IPSET_GC_PERIOD(set->timeout) * HZ;
 	add_timer(&h->gc);
 	pr_debug("gc initialized, run in every %u\n",
-		 IPSET_GC_PERIOD(h->timeout));
+		 IPSET_GC_PERIOD(set->timeout));
 }
 
 static bool
@@ -431,7 +423,7 @@ mtype_same_set(const struct ip_set *a, const struct ip_set *b)
 
 	/* Resizing changes htable_bits, so we ignore it */
 	return x->maxelem == y->maxelem &&
-	       x->timeout == y->timeout &&
+	       a->timeout == b->timeout &&
 #ifdef IP_SET_HASH_WITH_NETMASK
 	       x->netmask == y->netmask &&
 #endif
@@ -444,7 +436,7 @@ mtype_same_set(const struct ip_set *a, const struct ip_set *b)
 
 /* Delete expired elements from the hashtable */
 static void
-mtype_expire(struct htype *h, u8 nets_length, size_t dsize)
+mtype_expire(struct ip_set *set, struct htype *h, u8 nets_length, size_t dsize)
 {
 	struct htable *t;
 	struct hbucket *n;
@@ -458,7 +450,7 @@ mtype_expire(struct htype *h, u8 nets_length, size_t dsize)
 		n = hbucket(t, i);
 		for (j = 0; j < n->pos; j++) {
 			data = ahash_data(n, j, dsize);
-			if (ip_set_timeout_expired(ext_timeout(data, h))) {
+			if (ip_set_timeout_expired(ext_timeout(data, set))) {
 				pr_debug("expired %u/%u\n", i, j);
 #ifdef IP_SET_HASH_WITH_NETS
 				mtype_del_cidr(h, CIDR(data->cidr),
@@ -497,10 +489,10 @@ mtype_gc(unsigned long ul_set)
 
 	pr_debug("called\n");
 	write_lock_bh(&set->lock);
-	mtype_expire(h, NLEN(set->family), h->dsize);
+	mtype_expire(set, h, NLEN(set->family), set->dsize);
 	write_unlock_bh(&set->lock);
 
-	h->gc.expires = jiffies + IPSET_GC_PERIOD(h->timeout) * HZ;
+	h->gc.expires = jiffies + IPSET_GC_PERIOD(set->timeout) * HZ;
 	add_timer(&h->gc);
 }
 
@@ -526,7 +518,7 @@ mtype_resize(struct ip_set *set, bool retried)
 	if (SET_WITH_TIMEOUT(set) && !retried) {
 		i = h->elements;
 		write_lock_bh(&set->lock);
-		mtype_expire(set->data, NLEN(set->family), h->dsize);
+		mtype_expire(set, set->data, NLEN(set->family), set->dsize);
 		write_unlock_bh(&set->lock);
 		if (h->elements < i)
 			return 0;
@@ -553,13 +545,13 @@ retry:
 	for (i = 0; i < jhash_size(orig->htable_bits); i++) {
 		n = hbucket(orig, i);
 		for (j = 0; j < n->pos; j++) {
-			data = ahash_data(n, j, h->dsize);
+			data = ahash_data(n, j, set->dsize);
 #ifdef IP_SET_HASH_WITH_NETS
 			flags = 0;
 			mtype_data_reset_flags(data, &flags);
 #endif
 			m = hbucket(t, HKEY(data, h->initval, htable_bits));
-			ret = hbucket_elem_add(m, AHASH_MAX(h), h->dsize);
+			ret = hbucket_elem_add(m, AHASH_MAX(h), set->dsize);
 			if (ret < 0) {
 #ifdef IP_SET_HASH_WITH_NETS
 				mtype_data_reset_flags(data, &flags);
@@ -570,8 +562,8 @@ retry:
 					goto retry;
 				return ret;
 			}
-			d = ahash_data(m, m->pos++, h->dsize);
-			memcpy(d, data, h->dsize);
+			d = ahash_data(m, m->pos++, set->dsize);
+			memcpy(d, data, set->dsize);
 #ifdef IP_SET_HASH_WITH_NETS
 			mtype_data_reset_flags(d, &flags);
 #endif
@@ -609,7 +601,7 @@ mtype_add(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 
 	if (SET_WITH_TIMEOUT(set) && h->elements >= h->maxelem)
 		/* FIXME: when set is full, we slow down here */
-		mtype_expire(h, NLEN(set->family), h->dsize);
+		mtype_expire(set, h, NLEN(set->family), set->dsize);
 
 	if (h->elements >= h->maxelem) {
 		if (net_ratelimit())
@@ -623,11 +615,11 @@ mtype_add(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 	key = HKEY(value, h->initval, t->htable_bits);
 	n = hbucket(t, key);
 	for (i = 0; i < n->pos; i++) {
-		data = ahash_data(n, i, h->dsize);
+		data = ahash_data(n, i, set->dsize);
 		if (mtype_data_equal(data, d, &multi)) {
 			if (flag_exist ||
 			    (SET_WITH_TIMEOUT(set) &&
-			     ip_set_timeout_expired(ext_timeout(data, h)))) {
+			     ip_set_timeout_expired(ext_timeout(data, set)))) {
 				/* Just the extensions could be overwritten */
 				j = i;
 				goto reuse_slot;
@@ -638,14 +630,14 @@ mtype_add(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 		}
 		/* Reuse first timed out entry */
 		if (SET_WITH_TIMEOUT(set) &&
-		    ip_set_timeout_expired(ext_timeout(data, h)) &&
+		    ip_set_timeout_expired(ext_timeout(data, set)) &&
 		    j != AHASH_MAX(h) + 1)
 			j = i;
 	}
 reuse_slot:
 	if (j != AHASH_MAX(h) + 1) {
 		/* Fill out reused slot */
-		data = ahash_data(n, j, h->dsize);
+		data = ahash_data(n, j, set->dsize);
 #ifdef IP_SET_HASH_WITH_NETS
 		mtype_del_cidr(h, CIDR(data->cidr), NLEN(set->family), 0);
 		mtype_add_cidr(h, CIDR(d->cidr), NLEN(set->family), 0);
@@ -653,13 +645,13 @@ reuse_slot:
 	} else {
 		/* Use/create a new slot */
 		TUNE_AHASH_MAX(h, multi);
-		ret = hbucket_elem_add(n, AHASH_MAX(h), h->dsize);
+		ret = hbucket_elem_add(n, AHASH_MAX(h), set->dsize);
 		if (ret != 0) {
 			if (ret == -EAGAIN)
 				mtype_data_next(&h->next, d);
 			goto out;
 		}
-		data = ahash_data(n, n->pos++, h->dsize);
+		data = ahash_data(n, n->pos++, set->dsize);
 #ifdef IP_SET_HASH_WITH_NETS
 		mtype_add_cidr(h, CIDR(d->cidr), NLEN(set->family), 0);
 #endif
@@ -670,9 +662,9 @@ reuse_slot:
 	mtype_data_set_flags(data, flags);
 #endif
 	if (SET_WITH_TIMEOUT(set))
-		ip_set_timeout_set(ext_timeout(data, h), ext->timeout);
+		ip_set_timeout_set(ext_timeout(data, set), ext->timeout);
 	if (SET_WITH_COUNTER(set))
-		ip_set_init_counter(ext_counter(data, h), ext);
+		ip_set_init_counter(ext_counter(data, set), ext);
 
 out:
 	rcu_read_unlock_bh();
@@ -699,16 +691,16 @@ mtype_del(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 	key = HKEY(value, h->initval, t->htable_bits);
 	n = hbucket(t, key);
 	for (i = 0; i < n->pos; i++) {
-		data = ahash_data(n, i, h->dsize);
+		data = ahash_data(n, i, set->dsize);
 		if (!mtype_data_equal(data, d, &multi))
 			continue;
 		if (SET_WITH_TIMEOUT(set) &&
-		    ip_set_timeout_expired(ext_timeout(data, h)))
+		    ip_set_timeout_expired(ext_timeout(data, set)))
 			goto out;
 		if (i != n->pos - 1)
 			/* Not last one */
-			memcpy(data, ahash_data(n, n->pos - 1, h->dsize),
-			       h->dsize);
+			memcpy(data, ahash_data(n, n->pos - 1, set->dsize),
+			       set->dsize);
 
 		n->pos--;
 		h->elements--;
@@ -717,14 +709,14 @@ mtype_del(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 #endif
 		if (n->pos + AHASH_INIT_SIZE < n->size) {
 			void *tmp = kzalloc((n->size - AHASH_INIT_SIZE)
-					    * h->dsize,
+					    * set->dsize,
 					    GFP_ATOMIC);
 			if (!tmp) {
 				ret = 0;
 				goto out;
 			}
 			n->size -= AHASH_INIT_SIZE;
-			memcpy(tmp, n->value, n->size * h->dsize);
+			memcpy(tmp, n->value, n->size * set->dsize);
 			kfree(n->value);
 			n->value = tmp;
 		}
@@ -742,8 +734,7 @@ mtype_data_match(struct mtype_elem *data, const struct ip_set_ext *ext,
 		 struct ip_set_ext *mext, struct ip_set *set, u32 flags)
 {
 	if (SET_WITH_COUNTER(set))
-		ip_set_update_counter(ext_counter(data,
-						  (struct htype *)(set->data)),
+		ip_set_update_counter(ext_counter(data, set),
 				      ext, mext, flags);
 	return mtype_do_data_match(data);
 }
@@ -770,12 +761,12 @@ mtype_test_cidrs(struct ip_set *set, struct mtype_elem *d,
 		key = HKEY(d, h->initval, t->htable_bits);
 		n = hbucket(t, key);
 		for (i = 0; i < n->pos; i++) {
-			data = ahash_data(n, i, h->dsize);
+			data = ahash_data(n, i, set->dsize);
 			if (!mtype_data_equal(data, d, &multi))
 				continue;
 			if (SET_WITH_TIMEOUT(set)) {
 				if (!ip_set_timeout_expired(
-							ext_timeout(data, h)))
+						ext_timeout(data, set)))
 					return mtype_data_match(data, ext,
 								mext, set,
 								flags);
@@ -818,10 +809,10 @@ mtype_test(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 	key = HKEY(d, h->initval, t->htable_bits);
 	n = hbucket(t, key);
 	for (i = 0; i < n->pos; i++) {
-		data = ahash_data(n, i, h->dsize);
+		data = ahash_data(n, i, set->dsize);
 		if (mtype_data_equal(data, d, &multi) &&
 		    !(SET_WITH_TIMEOUT(set) &&
-		      ip_set_timeout_expired(ext_timeout(data, h)))) {
+		      ip_set_timeout_expired(ext_timeout(data, set)))) {
 			ret = mtype_data_match(data, ext, mext, set, flags);
 			goto out;
 		}
@@ -841,7 +832,7 @@ mtype_head(struct ip_set *set, struct sk_buff *skb)
 	size_t memsize;
 
 	t = rcu_dereference_bh_nfnl(h->table);
-	memsize = mtype_ahash_memsize(h, t, NLEN(set->family));
+	memsize = mtype_ahash_memsize(h, t, NLEN(set->family), set->dsize);
 
 	nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
 	if (!nested)
@@ -858,7 +849,7 @@ mtype_head(struct ip_set *set, struct sk_buff *skb)
 	if (nla_put_net32(skb, IPSET_ATTR_REFERENCES, htonl(set->ref - 1)) ||
 	    nla_put_net32(skb, IPSET_ATTR_MEMSIZE, htonl(memsize)) ||
 	    ((set->extensions & IPSET_EXT_TIMEOUT) &&
-	     nla_put_net32(skb, IPSET_ATTR_TIMEOUT, htonl(h->timeout))) ||
+	     nla_put_net32(skb, IPSET_ATTR_TIMEOUT, htonl(set->timeout))) ||
 	    ((set->extensions & IPSET_EXT_COUNTER) &&
 	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS,
 			   htonl(IPSET_FLAG_WITH_COUNTERS))))
@@ -894,9 +885,9 @@ mtype_list(const struct ip_set *set,
 		n = hbucket(t, cb->args[2]);
 		pr_debug("cb->args[2]: %lu, t %p n %p\n", cb->args[2], t, n);
 		for (i = 0; i < n->pos; i++) {
-			e = ahash_data(n, i, h->dsize);
+			e = ahash_data(n, i, set->dsize);
 			if (SET_WITH_TIMEOUT(set) &&
-			    ip_set_timeout_expired(ext_timeout(e, h)))
+			    ip_set_timeout_expired(ext_timeout(e, set)))
 				continue;
 			pr_debug("list hash %lu hbucket %p i %u, data %p\n",
 				 cb->args[2], n, i, e);
@@ -913,10 +904,10 @@ mtype_list(const struct ip_set *set,
 			if (SET_WITH_TIMEOUT(set) &&
 			    nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
 					  htonl(ip_set_timeout_get(
-						ext_timeout(e, h)))))
+						ext_timeout(e, set)))))
 				goto nla_put_failure;
 			if (SET_WITH_COUNTER(set) &&
-			    ip_set_put_counter(skb, ext_counter(e, h)))
+			    ip_set_put_counter(skb, ext_counter(e, set)))
 				goto nla_put_failure;
 			ipset_nest_end(skb, nested);
 		}
@@ -1026,7 +1017,7 @@ IPSET_TOKEN(HTYPE, _create)(struct ip_set *set, struct nlattr *tb[], u32 flags)
 	h->netmask = netmask;
 #endif
 	get_random_bytes(&h->initval, sizeof(h->initval));
-	h->timeout = IPSET_NO_TIMEOUT;
+	set->timeout = IPSET_NO_TIMEOUT;
 
 	hbits = htable_bits(hashsize);
 	hsize = htable_size(hbits);
@@ -1053,30 +1044,30 @@ IPSET_TOKEN(HTYPE, _create)(struct ip_set *set, struct nlattr *tb[], u32 flags)
 	if (cadt_flags & IPSET_FLAG_WITH_COUNTERS) {
 		set->extensions |= IPSET_EXT_COUNTER;
 		if (tb[IPSET_ATTR_TIMEOUT]) {
-			h->timeout =
+			set->timeout =
 				ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
 			set->extensions |= IPSET_EXT_TIMEOUT;
 			if (set->family == NFPROTO_IPV4) {
-				h->dsize = sizeof(struct
+				set->dsize = sizeof(struct
 					IPSET_TOKEN(HTYPE, 4ct_elem));
-				h->offset[IPSET_EXT_ID_TIMEOUT] =
+				set->offset[IPSET_EXT_ID_TIMEOUT] =
 					offsetof(struct
 						IPSET_TOKEN(HTYPE, 4ct_elem),
 						timeout);
-				h->offset[IPSET_EXT_ID_COUNTER] =
+				set->offset[IPSET_EXT_ID_COUNTER] =
 					offsetof(struct
 						IPSET_TOKEN(HTYPE, 4ct_elem),
 						counter);
 				IPSET_TOKEN(HTYPE, 4_gc_init)(set,
 					IPSET_TOKEN(HTYPE, 4_gc));
 			} else {
-				h->dsize = sizeof(struct
+				set->dsize = sizeof(struct
 					IPSET_TOKEN(HTYPE, 6ct_elem));
-				h->offset[IPSET_EXT_ID_TIMEOUT] =
+				set->offset[IPSET_EXT_ID_TIMEOUT] =
 					offsetof(struct
 						IPSET_TOKEN(HTYPE, 6ct_elem),
 						timeout);
-				h->offset[IPSET_EXT_ID_COUNTER] =
+				set->offset[IPSET_EXT_ID_COUNTER] =
 					offsetof(struct
 						IPSET_TOKEN(HTYPE, 6ct_elem),
 						counter);
@@ -1085,36 +1076,36 @@ IPSET_TOKEN(HTYPE, _create)(struct ip_set *set, struct nlattr *tb[], u32 flags)
 			}
 		} else {
 			if (set->family == NFPROTO_IPV4) {
-				h->dsize =
+				set->dsize =
 					sizeof(struct
 						IPSET_TOKEN(HTYPE, 4c_elem));
-				h->offset[IPSET_EXT_ID_COUNTER] =
+				set->offset[IPSET_EXT_ID_COUNTER] =
 					offsetof(struct
 						IPSET_TOKEN(HTYPE, 4c_elem),
 						counter);
 			} else {
-				h->dsize =
+				set->dsize =
 					sizeof(struct
 						IPSET_TOKEN(HTYPE, 6c_elem));
-				h->offset[IPSET_EXT_ID_COUNTER] =
+				set->offset[IPSET_EXT_ID_COUNTER] =
 					offsetof(struct
 						IPSET_TOKEN(HTYPE, 6c_elem),
 						counter);
 			}
 		}
 	} else if (tb[IPSET_ATTR_TIMEOUT]) {
-		h->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
+		set->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
 		set->extensions |= IPSET_EXT_TIMEOUT;
 		if (set->family == NFPROTO_IPV4) {
-			h->dsize = sizeof(struct IPSET_TOKEN(HTYPE, 4t_elem));
-			h->offset[IPSET_EXT_ID_TIMEOUT] =
+			set->dsize = sizeof(struct IPSET_TOKEN(HTYPE, 4t_elem));
+			set->offset[IPSET_EXT_ID_TIMEOUT] =
 				offsetof(struct IPSET_TOKEN(HTYPE, 4t_elem),
 					 timeout);
 			IPSET_TOKEN(HTYPE, 4_gc_init)(set,
 				IPSET_TOKEN(HTYPE, 4_gc));
 		} else {
-			h->dsize = sizeof(struct IPSET_TOKEN(HTYPE, 6t_elem));
-			h->offset[IPSET_EXT_ID_TIMEOUT] =
+			set->dsize = sizeof(struct IPSET_TOKEN(HTYPE, 6t_elem));
+			set->offset[IPSET_EXT_ID_TIMEOUT] =
 				offsetof(struct IPSET_TOKEN(HTYPE, 6t_elem),
 					 timeout);
 			IPSET_TOKEN(HTYPE, 6_gc_init)(set,
@@ -1122,9 +1113,9 @@ IPSET_TOKEN(HTYPE, _create)(struct ip_set *set, struct nlattr *tb[], u32 flags)
 		}
 	} else {
 		if (set->family == NFPROTO_IPV4)
-			h->dsize = sizeof(struct IPSET_TOKEN(HTYPE, 4_elem));
+			set->dsize = sizeof(struct IPSET_TOKEN(HTYPE, 4_elem));
 		else
-			h->dsize = sizeof(struct IPSET_TOKEN(HTYPE, 6_elem));
+			set->dsize = sizeof(struct IPSET_TOKEN(HTYPE, 6_elem));
 	}
 
 	pr_debug("create %s hashsize %u (%u) maxelem %u: %p(%p)\n",
diff --git a/net/netfilter/ipset/ip_set_hash_ip.c b/net/netfilter/ipset/ip_set_hash_ip.c
index 260c9a80d8a5..bbde7c304622 100644
--- a/net/netfilter/ipset/ip_set_hash_ip.c
+++ b/net/netfilter/ipset/ip_set_hash_ip.c
@@ -99,7 +99,7 @@ hash_ip4_kadt(struct ip_set *set, const struct sk_buff *skb,
 	const struct hash_ip *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_ip4_elem e = {};
-	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 	__be32 ip;
 
 	ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &ip);
@@ -118,7 +118,7 @@ hash_ip4_uadt(struct ip_set *set, struct nlattr *tb[],
 	const struct hash_ip *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_ip4_elem e = {};
-	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	u32 ip = 0, ip_to = 0, hosts;
 	int ret = 0;
 
@@ -253,7 +253,7 @@ hash_ip6_kadt(struct ip_set *set, const struct sk_buff *skb,
 	const struct hash_ip *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_ip6_elem e = {};
-	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 
 	ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip.in6);
 	hash_ip6_netmask(&e.ip, h->netmask);
@@ -270,7 +270,7 @@ hash_ip6_uadt(struct ip_set *set, struct nlattr *tb[],
 	const struct hash_ip *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_ip6_elem e = {};
-	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	int ret;
 
 	if (unlikely(!tb[IPSET_ATTR_IP] ||
diff --git a/net/netfilter/ipset/ip_set_hash_ipport.c b/net/netfilter/ipset/ip_set_hash_ipport.c
index 64caad35a391..dd175d6f3965 100644
--- a/net/netfilter/ipset/ip_set_hash_ipport.c
+++ b/net/netfilter/ipset/ip_set_hash_ipport.c
@@ -116,10 +116,9 @@ hash_ipport4_kadt(struct ip_set *set, const struct sk_buff *skb,
 		  const struct xt_action_param *par,
 		  enum ipset_adt adt, struct ip_set_adt_opt *opt)
 {
-	const struct hash_ipport *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_ipport4_elem e = { };
-	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 
 	if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
 				 &e.port, &e.proto))
@@ -136,7 +135,7 @@ hash_ipport4_uadt(struct ip_set *set, struct nlattr *tb[],
 	const struct hash_ipport *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_ipport4_elem e = { };
-	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	u32 ip, ip_to = 0, p = 0, port, port_to;
 	bool with_ports = false;
 	int ret;
@@ -306,10 +305,9 @@ hash_ipport6_kadt(struct ip_set *set, const struct sk_buff *skb,
 		  const struct xt_action_param *par,
 		  enum ipset_adt adt, struct ip_set_adt_opt *opt)
 {
-	const struct hash_ipport *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_ipport6_elem e = { };
-	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 
 	if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
 				 &e.port, &e.proto))
@@ -326,7 +324,7 @@ hash_ipport6_uadt(struct ip_set *set, struct nlattr *tb[],
 	const struct hash_ipport *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_ipport6_elem e = { };
-	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	u32 port, port_to;
 	bool with_ports = false;
 	int ret;
diff --git a/net/netfilter/ipset/ip_set_hash_ipportip.c b/net/netfilter/ipset/ip_set_hash_ipportip.c
index 2873bbc20d7a..87a2cfab2568 100644
--- a/net/netfilter/ipset/ip_set_hash_ipportip.c
+++ b/net/netfilter/ipset/ip_set_hash_ipportip.c
@@ -120,10 +120,9 @@ hash_ipportip4_kadt(struct ip_set *set, const struct sk_buff *skb,
 		    const struct xt_action_param *par,
 		    enum ipset_adt adt, struct ip_set_adt_opt *opt)
 {
-	const struct hash_ipportip *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_ipportip4_elem e = { };
-	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 
 	if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
 				 &e.port, &e.proto))
@@ -141,7 +140,7 @@ hash_ipportip4_uadt(struct ip_set *set, struct nlattr *tb[],
 	const struct hash_ipportip *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_ipportip4_elem e = { };
-	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	u32 ip, ip_to = 0, p = 0, port, port_to;
 	bool with_ports = false;
 	int ret;
@@ -319,10 +318,9 @@ hash_ipportip6_kadt(struct ip_set *set, const struct sk_buff *skb,
 		    const struct xt_action_param *par,
 		    enum ipset_adt adt, struct ip_set_adt_opt *opt)
 {
-	const struct hash_ipportip *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_ipportip6_elem e = { };
-	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 
 	if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
 				 &e.port, &e.proto))
@@ -340,7 +338,7 @@ hash_ipportip6_uadt(struct ip_set *set, struct nlattr *tb[],
 	const struct hash_ipportip *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_ipportip6_elem e = { };
-	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	u32 port, port_to;
 	bool with_ports = false;
 	int ret;
diff --git a/net/netfilter/ipset/ip_set_hash_ipportnet.c b/net/netfilter/ipset/ip_set_hash_ipportnet.c
index 6ce5a8e2c44e..0b9a28d7c740 100644
--- a/net/netfilter/ipset/ip_set_hash_ipportnet.c
+++ b/net/netfilter/ipset/ip_set_hash_ipportnet.c
@@ -172,7 +172,7 @@ hash_ipportnet4_kadt(struct ip_set *set, const struct sk_buff *skb,
 	struct hash_ipportnet4_elem e = {
 		.cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK) - 1,
 	};
-	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 
 	if (adt == IPSET_TEST)
 		e.cidr = HOST_MASK - 1;
@@ -195,7 +195,7 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
 	const struct hash_ipportnet *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_ipportnet4_elem e = { .cidr = HOST_MASK - 1 };
-	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	u32 ip = 0, ip_to = 0, p = 0, port, port_to;
 	u32 ip2_from = 0, ip2_to = 0, ip2_last, ip2;
 	bool with_ports = false;
@@ -306,9 +306,9 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
 						       : port;
 		for (; p <= port_to; p++) {
 			e.port = htons(p);
-			ip2 = retried
-			      && ip == ntohl(h->next.ip)
-			      && p == ntohs(h->next.port)
+			ip2 = retried &&
+			      ip == ntohl(h->next.ip) &&
+			      p == ntohs(h->next.port)
 				? ntohl(h->next.ip2) : ip2_from;
 			while (!after(ip2, ip2_to)) {
 				e.ip2 = htonl(ip2);
@@ -456,7 +456,7 @@ hash_ipportnet6_kadt(struct ip_set *set, const struct sk_buff *skb,
 	struct hash_ipportnet6_elem e = {
 		.cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK) - 1,
 	};
-	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 
 	if (adt == IPSET_TEST)
 		e.cidr = HOST_MASK - 1;
@@ -479,7 +479,7 @@ hash_ipportnet6_uadt(struct ip_set *set, struct nlattr *tb[],
 	const struct hash_ipportnet *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_ipportnet6_elem e = { .cidr = HOST_MASK - 1 };
-	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	u32 port, port_to;
 	bool with_ports = false;
 	u8 cidr;
diff --git a/net/netfilter/ipset/ip_set_hash_net.c b/net/netfilter/ipset/ip_set_hash_net.c
index ec1c7dc10489..1d4caa50dacb 100644
--- a/net/netfilter/ipset/ip_set_hash_net.c
+++ b/net/netfilter/ipset/ip_set_hash_net.c
@@ -145,7 +145,7 @@ hash_net4_kadt(struct ip_set *set, const struct sk_buff *skb,
 	struct hash_net4_elem e = {
 		.cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
 	};
-	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 
 	if (e.cidr == 0)
 		return -EINVAL;
@@ -165,7 +165,7 @@ hash_net4_uadt(struct ip_set *set, struct nlattr *tb[],
 	const struct hash_net *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_net4_elem e = { .cidr = HOST_MASK };
-	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	u32 ip = 0, ip_to = 0, last;
 	int ret;
 
@@ -340,7 +340,7 @@ hash_net6_kadt(struct ip_set *set, const struct sk_buff *skb,
 	struct hash_net6_elem e = {
 		.cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
 	};
-	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 
 	if (e.cidr == 0)
 		return -EINVAL;
@@ -357,10 +357,9 @@ static int
 hash_net6_uadt(struct ip_set *set, struct nlattr *tb[],
 	       enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
 {
-	const struct hash_net *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_net6_elem e = { .cidr = HOST_MASK };
-	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	int ret;
 
 	if (unlikely(!tb[IPSET_ATTR_IP] ||
diff --git a/net/netfilter/ipset/ip_set_hash_netiface.c b/net/netfilter/ipset/ip_set_hash_netiface.c
index 814b4e31a7f8..2f0ffe35c408 100644
--- a/net/netfilter/ipset/ip_set_hash_netiface.c
+++ b/net/netfilter/ipset/ip_set_hash_netiface.c
@@ -268,7 +268,7 @@ hash_netiface4_kadt(struct ip_set *set, const struct sk_buff *skb,
 		.cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
 		.elem = 1,
 	};
-	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 	int ret;
 
 	if (e.cidr == 0)
@@ -319,7 +319,7 @@ hash_netiface4_uadt(struct ip_set *set, struct nlattr *tb[],
 	struct hash_netiface *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_netiface4_elem e = { .cidr = HOST_MASK, .elem = 1 };
-	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	u32 ip = 0, ip_to = 0, last;
 	char iface[IFNAMSIZ];
 	int ret;
@@ -537,7 +537,7 @@ hash_netiface6_kadt(struct ip_set *set, const struct sk_buff *skb,
 		.cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
 		.elem = 1,
 	};
-	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 	int ret;
 
 	if (e.cidr == 0)
@@ -584,7 +584,7 @@ hash_netiface6_uadt(struct ip_set *set, struct nlattr *tb[],
 	struct hash_netiface *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_netiface6_elem e = { .cidr = HOST_MASK, .elem = 1 };
-	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	char iface[IFNAMSIZ];
 	int ret;
 
diff --git a/net/netfilter/ipset/ip_set_hash_netport.c b/net/netfilter/ipset/ip_set_hash_netport.c
index 3bd923d3f179..cab236625f97 100644
--- a/net/netfilter/ipset/ip_set_hash_netport.c
+++ b/net/netfilter/ipset/ip_set_hash_netport.c
@@ -164,7 +164,7 @@ hash_netport4_kadt(struct ip_set *set, const struct sk_buff *skb,
 	struct hash_netport4_elem e = {
 		.cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK) - 1,
 	};
-	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 
 	if (adt == IPSET_TEST)
 		e.cidr = HOST_MASK - 1;
@@ -186,7 +186,7 @@ hash_netport4_uadt(struct ip_set *set, struct nlattr *tb[],
 	const struct hash_netport *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_netport4_elem e = { .cidr = HOST_MASK - 1 };
-	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	u32 port, port_to, p = 0, ip = 0, ip_to = 0, last;
 	bool with_ports = false;
 	u8 cidr;
@@ -409,7 +409,7 @@ hash_netport6_kadt(struct ip_set *set, const struct sk_buff *skb,
 	struct hash_netport6_elem e = {
 		.cidr = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK) - 1,
 	};
-	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, h);
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 
 	if (adt == IPSET_TEST)
 		e.cidr = HOST_MASK - 1;
@@ -431,7 +431,7 @@ hash_netport6_uadt(struct ip_set *set, struct nlattr *tb[],
 	const struct hash_netport *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct hash_netport6_elem e = { .cidr = HOST_MASK  - 1 };
-	struct ip_set_ext ext = IP_SET_INIT_UEXT(h);
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	u32 port, port_to;
 	bool with_ports = false;
 	u8 cidr;
diff --git a/net/netfilter/ipset/ip_set_list_set.c b/net/netfilter/ipset/ip_set_list_set.c
index 0ed19b5e675e..f22d05d6e366 100644
--- a/net/netfilter/ipset/ip_set_list_set.c
+++ b/net/netfilter/ipset/ip_set_list_set.c
@@ -58,24 +58,13 @@ struct set_adt_elem {
 
 /* Type structure */
 struct list_set {
-	size_t dsize;		/* element size */
-	size_t offset[IPSET_EXT_ID_MAX]; /* Offsets to extensions */
 	u32 size;		/* size of set list array */
-	u32 timeout;		/* timeout value */
 	struct timer_list gc;	/* garbage collection */
 	struct set_elem members[0]; /* the set members */
 };
 
-static inline struct set_elem *
-list_set_elem(const struct list_set *map, u32 id)
-{
-	return (struct set_elem *)((void *)map->members + id * map->dsize);
-}
-
-#define ext_timeout(e, m)	\
-(unsigned long *)((void *)(e) + (m)->offset[IPSET_EXT_ID_TIMEOUT])
-#define ext_counter(e, m)	\
-(struct ip_set_counter *)((void *)(e) + (m)->offset[IPSET_EXT_ID_COUNTER])
+#define list_set_elem(set, map, id)	\
+	(struct set_elem *)((void *)(map)->members + (id) * (set)->dsize)
 
 static int
 list_set_ktest(struct ip_set *set, const struct sk_buff *skb,
@@ -92,16 +81,16 @@ list_set_ktest(struct ip_set *set, const struct sk_buff *skb,
 	if (opt->cmdflags & IPSET_FLAG_SKIP_SUBCOUNTER_UPDATE)
 		opt->cmdflags &= ~IPSET_FLAG_SKIP_COUNTER_UPDATE;
 	for (i = 0; i < map->size; i++) {
-		e = list_set_elem(map, i);
+		e = list_set_elem(set, map, i);
 		if (e->id == IPSET_INVALID_ID)
 			return 0;
 		if (SET_WITH_TIMEOUT(set) &&
-		    ip_set_timeout_expired(ext_timeout(e, map)))
+		    ip_set_timeout_expired(ext_timeout(e, set)))
 			continue;
 		ret = ip_set_test(e->id, skb, par, opt);
 		if (ret > 0) {
 			if (SET_WITH_COUNTER(set))
-				ip_set_update_counter(ext_counter(e, map),
+				ip_set_update_counter(ext_counter(e, set),
 						      ext, &opt->ext,
 						      cmdflags);
 			return ret;
@@ -121,11 +110,11 @@ list_set_kadd(struct ip_set *set, const struct sk_buff *skb,
 	int ret;
 
 	for (i = 0; i < map->size; i++) {
-		e = list_set_elem(map, i);
+		e = list_set_elem(set, map, i);
 		if (e->id == IPSET_INVALID_ID)
 			return 0;
 		if (SET_WITH_TIMEOUT(set) &&
-		    ip_set_timeout_expired(ext_timeout(e, map)))
+		    ip_set_timeout_expired(ext_timeout(e, set)))
 			continue;
 		ret = ip_set_add(e->id, skb, par, opt);
 		if (ret == 0)
@@ -145,11 +134,11 @@ list_set_kdel(struct ip_set *set, const struct sk_buff *skb,
 	int ret;
 
 	for (i = 0; i < map->size; i++) {
-		e = list_set_elem(map, i);
+		e = list_set_elem(set, map, i);
 		if (e->id == IPSET_INVALID_ID)
 			return 0;
 		if (SET_WITH_TIMEOUT(set) &&
-		    ip_set_timeout_expired(ext_timeout(e, map)))
+		    ip_set_timeout_expired(ext_timeout(e, set)))
 			continue;
 		ret = ip_set_del(e->id, skb, par, opt);
 		if (ret == 0)
@@ -163,8 +152,7 @@ list_set_kadt(struct ip_set *set, const struct sk_buff *skb,
 	      const struct xt_action_param *par,
 	      enum ipset_adt adt, struct ip_set_adt_opt *opt)
 {
-	struct list_set *map = set->data;
-	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, map);
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 
 	switch (adt) {
 	case IPSET_TEST:
@@ -188,10 +176,10 @@ id_eq(const struct ip_set *set, u32 i, ip_set_id_t id)
 	if (i >= map->size)
 		return 0;
 
-	e = list_set_elem(map, i);
+	e = list_set_elem(set, map, i);
 	return !!(e->id == id &&
 		 !(SET_WITH_TIMEOUT(set) &&
-		   ip_set_timeout_expired(ext_timeout(e, map))));
+		   ip_set_timeout_expired(ext_timeout(e, set))));
 }
 
 static int
@@ -199,28 +187,29 @@ list_set_add(struct ip_set *set, u32 i, struct set_adt_elem *d,
 	     const struct ip_set_ext *ext)
 {
 	struct list_set *map = set->data;
-	struct set_elem *e = list_set_elem(map, i);
+	struct set_elem *e = list_set_elem(set, map, i);
 
 	if (e->id != IPSET_INVALID_ID) {
 		if (i == map->size - 1)
 			/* Last element replaced: e.g. add new,before,last */
 			ip_set_put_byindex(e->id);
 		else {
-			struct set_elem *x = list_set_elem(map, map->size - 1);
+			struct set_elem *x = list_set_elem(set, map,
+							   map->size - 1);
 
 			/* Last element pushed off */
 			if (x->id != IPSET_INVALID_ID)
 				ip_set_put_byindex(x->id);
-			memmove(list_set_elem(map, i + 1), e,
-				map->dsize * (map->size - (i + 1)));
+			memmove(list_set_elem(set, map, i + 1), e,
+				set->dsize * (map->size - (i + 1)));
 		}
 	}
 
 	e->id = d->id;
 	if (SET_WITH_TIMEOUT(set))
-		ip_set_timeout_set(ext_timeout(e, map), ext->timeout);
+		ip_set_timeout_set(ext_timeout(e, set), ext->timeout);
 	if (SET_WITH_COUNTER(set))
-		ip_set_init_counter(ext_counter(e, map), ext);
+		ip_set_init_counter(ext_counter(e, set), ext);
 	return 0;
 }
 
@@ -228,16 +217,16 @@ static int
 list_set_del(struct ip_set *set, u32 i)
 {
 	struct list_set *map = set->data;
-	struct set_elem *e = list_set_elem(map, i);
+	struct set_elem *e = list_set_elem(set, map, i);
 
 	ip_set_put_byindex(e->id);
 
 	if (i < map->size - 1)
-		memmove(e, list_set_elem(map, i + 1),
-			map->dsize * (map->size - (i + 1)));
+		memmove(e, list_set_elem(set, map, i + 1),
+			set->dsize * (map->size - (i + 1)));
 
 	/* Last element */
-	e = list_set_elem(map, map->size - 1);
+	e = list_set_elem(set, map, map->size - 1);
 	e->id = IPSET_INVALID_ID;
 	return 0;
 }
@@ -250,9 +239,9 @@ set_cleanup_entries(struct ip_set *set)
 	u32 i;
 
 	for (i = 0; i < map->size; i++) {
-		e = list_set_elem(map, i);
+		e = list_set_elem(set, map, i);
 		if (e->id != IPSET_INVALID_ID &&
-		    ip_set_timeout_expired(ext_timeout(e, map)))
+		    ip_set_timeout_expired(ext_timeout(e, set)))
 			list_set_del(set, i);
 	}
 }
@@ -268,11 +257,11 @@ list_set_utest(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 	int ret;
 
 	for (i = 0; i < map->size; i++) {
-		e = list_set_elem(map, i);
+		e = list_set_elem(set, map, i);
 		if (e->id == IPSET_INVALID_ID)
 			return 0;
 		else if (SET_WITH_TIMEOUT(set) &&
-			 ip_set_timeout_expired(ext_timeout(e, map)))
+			 ip_set_timeout_expired(ext_timeout(e, set)))
 			continue;
 		else if (e->id != d->id)
 			continue;
@@ -301,11 +290,11 @@ list_set_uadd(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 
 	/* Check already added element */
 	for (i = 0; i < map->size; i++) {
-		e = list_set_elem(map, i);
+		e = list_set_elem(set, map, i);
 		if (e->id == IPSET_INVALID_ID)
 			goto insert;
 		else if (SET_WITH_TIMEOUT(set) &&
-			 ip_set_timeout_expired(ext_timeout(e, map)))
+			 ip_set_timeout_expired(ext_timeout(e, set)))
 			continue;
 		else if (e->id != d->id)
 			continue;
@@ -320,9 +309,9 @@ list_set_uadd(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 			return -IPSET_ERR_EXIST;
 		/* Update extensions */
 		if (SET_WITH_TIMEOUT(set))
-			ip_set_timeout_set(ext_timeout(e, map), ext->timeout);
+			ip_set_timeout_set(ext_timeout(e, set), ext->timeout);
 		if (SET_WITH_COUNTER(set))
-			ip_set_init_counter(ext_counter(e, map), ext);
+			ip_set_init_counter(ext_counter(e, set), ext);
 		/* Set is already added to the list */
 		ip_set_put_byindex(d->id);
 		return 0;
@@ -330,7 +319,7 @@ list_set_uadd(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 insert:
 	ret = -IPSET_ERR_LIST_FULL;
 	for (i = 0; i < map->size && ret == -IPSET_ERR_LIST_FULL; i++) {
-		e = list_set_elem(map, i);
+		e = list_set_elem(set, map, i);
 		if (e->id == IPSET_INVALID_ID)
 			ret = d->before != 0 ? -IPSET_ERR_REF_EXIST
 				: list_set_add(set, i, d, ext);
@@ -355,12 +344,12 @@ list_set_udel(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 	u32 i;
 
 	for (i = 0; i < map->size; i++) {
-		e = list_set_elem(map, i);
+		e = list_set_elem(set, map, i);
 		if (e->id == IPSET_INVALID_ID)
 			return d->before != 0 ? -IPSET_ERR_REF_EXIST
 					      : -IPSET_ERR_EXIST;
 		else if (SET_WITH_TIMEOUT(set) &&
-			 ip_set_timeout_expired(ext_timeout(e, map)))
+			 ip_set_timeout_expired(ext_timeout(e, set)))
 			continue;
 		else if (e->id != d->id)
 			continue;
@@ -383,10 +372,9 @@ static int
 list_set_uadt(struct ip_set *set, struct nlattr *tb[],
 	      enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
 {
-	struct list_set *map = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct set_adt_elem e = { .refid = IPSET_INVALID_ID };
-	struct ip_set_ext ext = IP_SET_INIT_UEXT(map);
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	struct ip_set *s;
 	int ret = 0;
 
@@ -454,7 +442,7 @@ list_set_flush(struct ip_set *set)
 	u32 i;
 
 	for (i = 0; i < map->size; i++) {
-		e = list_set_elem(map, i);
+		e = list_set_elem(set, map, i);
 		if (e->id != IPSET_INVALID_ID) {
 			ip_set_put_byindex(e->id);
 			e->id = IPSET_INVALID_ID;
@@ -486,13 +474,13 @@ list_set_head(struct ip_set *set, struct sk_buff *skb)
 		goto nla_put_failure;
 	if (nla_put_net32(skb, IPSET_ATTR_SIZE, htonl(map->size)) ||
 	    (SET_WITH_TIMEOUT(set) &&
-	     nla_put_net32(skb, IPSET_ATTR_TIMEOUT, htonl(map->timeout))) ||
+	     nla_put_net32(skb, IPSET_ATTR_TIMEOUT, htonl(set->timeout))) ||
 	    (SET_WITH_COUNTER(set) &&
 	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS,
 			   htonl(IPSET_FLAG_WITH_COUNTERS))) ||
 	    nla_put_net32(skb, IPSET_ATTR_REFERENCES, htonl(set->ref - 1)) ||
 	    nla_put_net32(skb, IPSET_ATTR_MEMSIZE,
-			  htonl(sizeof(*map) + map->size * map->dsize)))
+			  htonl(sizeof(*map) + map->size * set->dsize)))
 		goto nla_put_failure;
 	ipset_nest_end(skb, nested);
 
@@ -515,11 +503,11 @@ list_set_list(const struct ip_set *set,
 		return -EMSGSIZE;
 	for (; cb->args[2] < map->size; cb->args[2]++) {
 		i = cb->args[2];
-		e = list_set_elem(map, i);
+		e = list_set_elem(set, map, i);
 		if (e->id == IPSET_INVALID_ID)
 			goto finish;
 		if (SET_WITH_TIMEOUT(set) &&
-		    ip_set_timeout_expired(ext_timeout(e, map)))
+		    ip_set_timeout_expired(ext_timeout(e, set)))
 			continue;
 		nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
 		if (!nested) {
@@ -535,10 +523,10 @@ list_set_list(const struct ip_set *set,
 		if (SET_WITH_TIMEOUT(set) &&
 		    nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
 				  htonl(ip_set_timeout_get(
-						ext_timeout(e, map)))))
+						ext_timeout(e, set)))))
 			goto nla_put_failure;
 		if (SET_WITH_COUNTER(set) &&
-		    ip_set_put_counter(skb, ext_counter(e, map)))
+		    ip_set_put_counter(skb, ext_counter(e, set)))
 			goto nla_put_failure;
 		ipset_nest_end(skb, nested);
 	}
@@ -565,7 +553,7 @@ list_set_same_set(const struct ip_set *a, const struct ip_set *b)
 	const struct list_set *y = b->data;
 
 	return x->size == y->size &&
-	       x->timeout == y->timeout &&
+	       a->timeout == b->timeout &&
 	       a->extensions == b->extensions;
 }
 
@@ -594,7 +582,7 @@ list_set_gc(unsigned long ul_set)
 	set_cleanup_entries(set);
 	write_unlock_bh(&set->lock);
 
-	map->gc.expires = jiffies + IPSET_GC_PERIOD(map->timeout) * HZ;
+	map->gc.expires = jiffies + IPSET_GC_PERIOD(set->timeout) * HZ;
 	add_timer(&map->gc);
 }
 
@@ -606,7 +594,7 @@ list_set_gc_init(struct ip_set *set, void (*gc)(unsigned long ul_set))
 	init_timer(&map->gc);
 	map->gc.data = (unsigned long) set;
 	map->gc.function = gc;
-	map->gc.expires = jiffies + IPSET_GC_PERIOD(map->timeout) * HZ;
+	map->gc.expires = jiffies + IPSET_GC_PERIOD(set->timeout) * HZ;
 	add_timer(&map->gc);
 }
 
@@ -625,12 +613,12 @@ init_list_set(struct ip_set *set, u32 size, size_t dsize,
 		return NULL;
 
 	map->size = size;
-	map->dsize = dsize;
-	map->timeout = timeout;
+	set->dsize = dsize;
+	set->timeout = timeout;
 	set->data = map;
 
 	for (i = 0; i < size; i++) {
-		e = list_set_elem(map, i);
+		e = list_set_elem(set, map, i);
 		e->id = IPSET_INVALID_ID;
 	}
 
@@ -667,9 +655,9 @@ list_set_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 			if (!map)
 				return -ENOMEM;
 			set->extensions |= IPSET_EXT_TIMEOUT;
-			map->offset[IPSET_EXT_ID_TIMEOUT] =
+			set->offset[IPSET_EXT_ID_TIMEOUT] =
 				offsetof(struct setct_elem, timeout);
-			map->offset[IPSET_EXT_ID_COUNTER] =
+			set->offset[IPSET_EXT_ID_COUNTER] =
 				offsetof(struct setct_elem, counter);
 			list_set_gc_init(set, list_set_gc);
 		} else {
@@ -677,7 +665,7 @@ list_set_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 					    sizeof(struct setc_elem), 0);
 			if (!map)
 				return -ENOMEM;
-			map->offset[IPSET_EXT_ID_COUNTER] =
+			set->offset[IPSET_EXT_ID_COUNTER] =
 				offsetof(struct setc_elem, counter);
 		}
 	} else if (tb[IPSET_ATTR_TIMEOUT]) {
@@ -686,7 +674,7 @@ list_set_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 		if (!map)
 			return -ENOMEM;
 		set->extensions |= IPSET_EXT_TIMEOUT;
-		map->offset[IPSET_EXT_ID_TIMEOUT] =
+		set->offset[IPSET_EXT_ID_TIMEOUT] =
 			offsetof(struct sett_elem, timeout);
 		list_set_gc_init(set, list_set_gc);
 	} else {
-- 
cgit 


From 03c8b234e61a9a3aab8d970b3bf681934ecfe443 Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Sat, 7 Sep 2013 00:43:52 +0200
Subject: netfilter: ipset: Generalize extensions support

Get rid of the structure based extensions and introduce a blob for
the extensions. Thus we can support more extension types easily.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 include/linux/netfilter/ipset/ip_set.h      | 13 +++++
 net/netfilter/ipset/ip_set_bitmap_ip.c      | 81 +++----------------------
 net/netfilter/ipset/ip_set_bitmap_ipmac.c   | 91 +++--------------------------
 net/netfilter/ipset/ip_set_bitmap_port.c    | 71 ++--------------------
 net/netfilter/ipset/ip_set_core.c           | 46 +++++++++++++++
 net/netfilter/ipset/ip_set_hash_gen.h       | 86 ++++-----------------------
 net/netfilter/ipset/ip_set_hash_ip.c        | 36 +-----------
 net/netfilter/ipset/ip_set_hash_ipport.c    | 54 +----------------
 net/netfilter/ipset/ip_set_hash_ipportip.c  | 60 +------------------
 net/netfilter/ipset/ip_set_hash_ipportnet.c | 66 +--------------------
 net/netfilter/ipset/ip_set_hash_net.c       | 54 +----------------
 net/netfilter/ipset/ip_set_hash_netiface.c  | 68 +--------------------
 net/netfilter/ipset/ip_set_hash_netport.c   | 60 +------------------
 net/netfilter/ipset/ip_set_list_set.c       | 81 ++++---------------------
 14 files changed, 118 insertions(+), 749 deletions(-)

diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h
index 992a2f58dbd3..66d6bd404d64 100644
--- a/include/linux/netfilter/ipset/ip_set.h
+++ b/include/linux/netfilter/ipset/ip_set.h
@@ -66,6 +66,17 @@ enum ip_set_ext_id {
 	IPSET_EXT_ID_MAX,
 };
 
+/* Extension type */
+struct ip_set_ext_type {
+	enum ip_set_extension type;
+	enum ipset_cadt_flags flag;
+	/* Size and minimal alignment */
+	u8 len;
+	u8 align;
+};
+
+extern const struct ip_set_ext_type ip_set_extensions[];
+
 struct ip_set_ext {
 	u64 packets;
 	u64 bytes;
@@ -283,6 +294,8 @@ extern void *ip_set_alloc(size_t size);
 extern void ip_set_free(void *members);
 extern int ip_set_get_ipaddr4(struct nlattr *nla,  __be32 *ipaddr);
 extern int ip_set_get_ipaddr6(struct nlattr *nla, union nf_inet_addr *ipaddr);
+extern size_t ip_set_elem_len(struct ip_set *set, struct nlattr *tb[],
+			      size_t len);
 extern int ip_set_get_extensions(struct ip_set *set, struct nlattr *tb[],
 				 struct ip_set_ext *ext);
 
diff --git a/net/netfilter/ipset/ip_set_bitmap_ip.c b/net/netfilter/ipset/ip_set_bitmap_ip.c
index 363022edb8fb..94d985457c51 100644
--- a/net/netfilter/ipset/ip_set_bitmap_ip.c
+++ b/net/netfilter/ipset/ip_set_bitmap_ip.c
@@ -208,25 +208,6 @@ bitmap_ip_same_set(const struct ip_set *a, const struct ip_set *b)
 struct bitmap_ip_elem {
 };
 
-/* Timeout variant */
-
-struct bitmap_ipt_elem {
-	unsigned long timeout;
-};
-
-/* Plain variant with counter */
-
-struct bitmap_ipc_elem {
-	struct ip_set_counter counter;
-};
-
-/* Timeout variant with counter */
-
-struct bitmap_ipct_elem {
-	unsigned long timeout;
-	struct ip_set_counter counter;
-};
-
 #include "ip_set_bitmap_gen.h"
 
 /* Create bitmap:ip type of sets */
@@ -263,7 +244,7 @@ static int
 bitmap_ip_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 {
 	struct bitmap_ip *map;
-	u32 first_ip = 0, last_ip = 0, hosts, cadt_flags = 0;
+	u32 first_ip = 0, last_ip = 0, hosts;
 	u64 elements;
 	u8 netmask = 32;
 	int ret;
@@ -335,61 +316,15 @@ bitmap_ip_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 
 	map->memsize = bitmap_bytes(0, elements - 1);
 	set->variant = &bitmap_ip;
-	if (tb[IPSET_ATTR_CADT_FLAGS])
-		cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
-	if (cadt_flags & IPSET_FLAG_WITH_COUNTERS) {
-		set->extensions |= IPSET_EXT_COUNTER;
-		if (tb[IPSET_ATTR_TIMEOUT]) {
-			set->dsize = sizeof(struct bitmap_ipct_elem);
-			set->offset[IPSET_EXT_ID_TIMEOUT] =
-				offsetof(struct bitmap_ipct_elem, timeout);
-			set->offset[IPSET_EXT_ID_COUNTER] =
-				offsetof(struct bitmap_ipct_elem, counter);
-
-			if (!init_map_ip(set, map, first_ip, last_ip,
-					 elements, hosts, netmask)) {
-				kfree(map);
-				return -ENOMEM;
-			}
-
-			set->timeout = ip_set_timeout_uget(
-				tb[IPSET_ATTR_TIMEOUT]);
-			set->extensions |= IPSET_EXT_TIMEOUT;
-
-			bitmap_ip_gc_init(set, bitmap_ip_gc);
-		} else {
-			set->dsize = sizeof(struct bitmap_ipc_elem);
-			set->offset[IPSET_EXT_ID_COUNTER] =
-				offsetof(struct bitmap_ipc_elem, counter);
-
-			if (!init_map_ip(set, map, first_ip, last_ip,
-					 elements, hosts, netmask)) {
-				kfree(map);
-				return -ENOMEM;
-			}
-		}
-	} else if (tb[IPSET_ATTR_TIMEOUT]) {
-		set->dsize = sizeof(struct bitmap_ipt_elem);
-		set->offset[IPSET_EXT_ID_TIMEOUT] =
-			offsetof(struct bitmap_ipt_elem, timeout);
-
-		if (!init_map_ip(set, map, first_ip, last_ip,
-				 elements, hosts, netmask)) {
-			kfree(map);
-			return -ENOMEM;
-		}
-
+	set->dsize = ip_set_elem_len(set, tb, 0);
+	if (!init_map_ip(set, map, first_ip, last_ip,
+			 elements, hosts, netmask)) {
+		kfree(map);
+		return -ENOMEM;
+	}
+	if (tb[IPSET_ATTR_TIMEOUT]) {
 		set->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
-		set->extensions |= IPSET_EXT_TIMEOUT;
-
 		bitmap_ip_gc_init(set, bitmap_ip_gc);
-	} else {
-		set->dsize = 0;
-		if (!init_map_ip(set, map, first_ip, last_ip,
-				 elements, hosts, netmask)) {
-			kfree(map);
-			return -ENOMEM;
-		}
 	}
 	return 0;
 }
diff --git a/net/netfilter/ipset/ip_set_bitmap_ipmac.c b/net/netfilter/ipset/ip_set_bitmap_ipmac.c
index 74576cb19264..654a97bedfe9 100644
--- a/net/netfilter/ipset/ip_set_bitmap_ipmac.c
+++ b/net/netfilter/ipset/ip_set_bitmap_ipmac.c
@@ -289,37 +289,6 @@ bitmap_ipmac_same_set(const struct ip_set *a, const struct ip_set *b)
 
 /* Plain variant */
 
-/* Timeout variant */
-
-struct bitmap_ipmact_elem {
-	struct {
-		unsigned char ether[ETH_ALEN];
-		unsigned char filled;
-	} __attribute__ ((aligned));
-	unsigned long timeout;
-};
-
-/* Plain variant with counter */
-
-struct bitmap_ipmacc_elem {
-	struct {
-		unsigned char ether[ETH_ALEN];
-		unsigned char filled;
-	} __attribute__ ((aligned));
-	struct ip_set_counter counter;
-};
-
-/* Timeout variant with counter */
-
-struct bitmap_ipmacct_elem {
-	struct {
-		unsigned char ether[ETH_ALEN];
-		unsigned char filled;
-	} __attribute__ ((aligned));
-	unsigned long timeout;
-	struct ip_set_counter counter;
-};
-
 #include "ip_set_bitmap_gen.h"
 
 /* Create bitmap:ip,mac type of sets */
@@ -328,7 +297,7 @@ static bool
 init_map_ipmac(struct ip_set *set, struct bitmap_ipmac *map,
 	       u32 first_ip, u32 last_ip, u32 elements)
 {
-	map->members = ip_set_alloc((last_ip - first_ip + 1) * set->dsize);
+	map->members = ip_set_alloc(map->memsize);
 	if (!map->members)
 		return false;
 	if (set->dsize) {
@@ -353,7 +322,7 @@ static int
 bitmap_ipmac_create(struct ip_set *set, struct nlattr *tb[],
 		    u32 flags)
 {
-	u32 first_ip = 0, last_ip = 0, cadt_flags = 0;
+	u32 first_ip = 0, last_ip = 0;
 	u64 elements;
 	struct bitmap_ipmac *map;
 	int ret;
@@ -397,57 +366,15 @@ bitmap_ipmac_create(struct ip_set *set, struct nlattr *tb[],
 
 	map->memsize = bitmap_bytes(0, elements - 1);
 	set->variant = &bitmap_ipmac;
-	if (tb[IPSET_ATTR_CADT_FLAGS])
-		cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
-	if (cadt_flags & IPSET_FLAG_WITH_COUNTERS) {
-		set->extensions |= IPSET_EXT_COUNTER;
-		if (tb[IPSET_ATTR_TIMEOUT]) {
-			set->dsize = sizeof(struct bitmap_ipmacct_elem);
-			set->offset[IPSET_EXT_ID_TIMEOUT] =
-				offsetof(struct bitmap_ipmacct_elem, timeout);
-			set->offset[IPSET_EXT_ID_COUNTER] =
-				offsetof(struct bitmap_ipmacct_elem, counter);
-
-			if (!init_map_ipmac(set, map, first_ip, last_ip,
-					    elements)) {
-				kfree(map);
-				return -ENOMEM;
-			}
-			set->timeout = ip_set_timeout_uget(
-				tb[IPSET_ATTR_TIMEOUT]);
-			set->extensions |= IPSET_EXT_TIMEOUT;
-			bitmap_ipmac_gc_init(set, bitmap_ipmac_gc);
-		} else {
-			set->dsize = sizeof(struct bitmap_ipmacc_elem);
-			set->offset[IPSET_EXT_ID_COUNTER] =
-				offsetof(struct bitmap_ipmacc_elem, counter);
-
-			if (!init_map_ipmac(set, map, first_ip, last_ip,
-					    elements)) {
-				kfree(map);
-				return -ENOMEM;
-			}
-		}
-	} else if (tb[IPSET_ATTR_TIMEOUT]) {
-		set->dsize = sizeof(struct bitmap_ipmact_elem);
-		set->offset[IPSET_EXT_ID_TIMEOUT] =
-			offsetof(struct bitmap_ipmact_elem, timeout);
-
-		if (!init_map_ipmac(set, map, first_ip, last_ip, elements)) {
-			kfree(map);
-			return -ENOMEM;
-		}
+	set->dsize = ip_set_elem_len(set, tb,
+				     sizeof(struct bitmap_ipmac_elem));
+	if (!init_map_ipmac(set, map, first_ip, last_ip, elements)) {
+		kfree(map);
+		return -ENOMEM;
+	}
+	if (tb[IPSET_ATTR_TIMEOUT]) {
 		set->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
-		set->extensions |= IPSET_EXT_TIMEOUT;
 		bitmap_ipmac_gc_init(set, bitmap_ipmac_gc);
-	} else {
-		set->dsize = sizeof(struct bitmap_ipmac_elem);
-
-		if (!init_map_ipmac(set, map, first_ip, last_ip, elements)) {
-			kfree(map);
-			return -ENOMEM;
-		}
-		set->variant = &bitmap_ipmac;
 	}
 	return 0;
 }
diff --git a/net/netfilter/ipset/ip_set_bitmap_port.c b/net/netfilter/ipset/ip_set_bitmap_port.c
index 71da31935499..1ef2f3186b80 100644
--- a/net/netfilter/ipset/ip_set_bitmap_port.c
+++ b/net/netfilter/ipset/ip_set_bitmap_port.c
@@ -198,25 +198,6 @@ bitmap_port_same_set(const struct ip_set *a, const struct ip_set *b)
 struct bitmap_port_elem {
 };
 
-/* Timeout variant */
-
-struct bitmap_portt_elem {
-	unsigned long timeout;
-};
-
-/* Plain variant with counter */
-
-struct bitmap_portc_elem {
-	struct ip_set_counter counter;
-};
-
-/* Timeout variant with counter */
-
-struct bitmap_portct_elem {
-	unsigned long timeout;
-	struct ip_set_counter counter;
-};
-
 #include "ip_set_bitmap_gen.h"
 
 /* Create bitmap:ip type of sets */
@@ -250,7 +231,6 @@ bitmap_port_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 {
 	struct bitmap_port *map;
 	u16 first_port, last_port;
-	u32 cadt_flags = 0;
 
 	if (unlikely(!ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
 		     !ip_set_attr_netorder(tb, IPSET_ATTR_PORT_TO) ||
@@ -274,53 +254,14 @@ bitmap_port_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 	map->elements = last_port - first_port + 1;
 	map->memsize = map->elements * sizeof(unsigned long);
 	set->variant = &bitmap_port;
-	if (tb[IPSET_ATTR_CADT_FLAGS])
-		cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
-	if (cadt_flags & IPSET_FLAG_WITH_COUNTERS) {
-		set->extensions |= IPSET_EXT_COUNTER;
-		if (tb[IPSET_ATTR_TIMEOUT]) {
-			set->dsize = sizeof(struct bitmap_portct_elem);
-			set->offset[IPSET_EXT_ID_TIMEOUT] =
-				offsetof(struct bitmap_portct_elem, timeout);
-			set->offset[IPSET_EXT_ID_COUNTER] =
-				offsetof(struct bitmap_portct_elem, counter);
-			if (!init_map_port(set, map, first_port, last_port)) {
-				kfree(map);
-				return -ENOMEM;
-			}
-
-			set->timeout =
-				ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
-			set->extensions |= IPSET_EXT_TIMEOUT;
-			bitmap_port_gc_init(set, bitmap_port_gc);
-		} else {
-			set->dsize = sizeof(struct bitmap_portc_elem);
-			set->offset[IPSET_EXT_ID_COUNTER] =
-				offsetof(struct bitmap_portc_elem, counter);
-			if (!init_map_port(set, map, first_port, last_port)) {
-				kfree(map);
-				return -ENOMEM;
-			}
-		}
-	} else if (tb[IPSET_ATTR_TIMEOUT]) {
-		set->dsize = sizeof(struct bitmap_portt_elem);
-		set->offset[IPSET_EXT_ID_TIMEOUT] =
-			offsetof(struct bitmap_portt_elem, timeout);
-		if (!init_map_port(set, map, first_port, last_port)) {
-			kfree(map);
-			return -ENOMEM;
-		}
-
+	set->dsize = ip_set_elem_len(set, tb, 0);
+	if (!init_map_port(set, map, first_port, last_port)) {
+		kfree(map);
+		return -ENOMEM;
+	}
+	if (tb[IPSET_ATTR_TIMEOUT]) {
 		set->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
-		set->extensions |= IPSET_EXT_TIMEOUT;
 		bitmap_port_gc_init(set, bitmap_port_gc);
-	} else {
-		set->dsize = 0;
-		if (!init_map_port(set, map, first_port, last_port)) {
-			kfree(map);
-			return -ENOMEM;
-		}
-
 	}
 	return 0;
 }
diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
index 428c30a8586f..f35afed3814f 100644
--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -315,6 +315,52 @@ ip_set_get_ipaddr6(struct nlattr *nla, union nf_inet_addr *ipaddr)
 }
 EXPORT_SYMBOL_GPL(ip_set_get_ipaddr6);
 
+/* ipset data extension types, in size order */
+
+const struct ip_set_ext_type ip_set_extensions[] = {
+	[IPSET_EXT_ID_COUNTER] = {
+		.type	= IPSET_EXT_COUNTER,
+		.flag	= IPSET_FLAG_WITH_COUNTERS,
+		.len	= sizeof(struct ip_set_counter),
+		.align	= __alignof__(struct ip_set_counter),
+	},
+	[IPSET_EXT_ID_TIMEOUT] = {
+		.type	= IPSET_EXT_TIMEOUT,
+		.len	= sizeof(unsigned long),
+		.align	= __alignof__(unsigned long),
+	},
+};
+EXPORT_SYMBOL_GPL(ip_set_extensions);
+
+static inline bool
+add_extension(enum ip_set_ext_id id, u32 flags, struct nlattr *tb[])
+{
+	return ip_set_extensions[id].flag ?
+		(flags & ip_set_extensions[id].flag) :
+		!!tb[IPSET_ATTR_TIMEOUT];
+}
+
+size_t
+ip_set_elem_len(struct ip_set *set, struct nlattr *tb[], size_t len)
+{
+	enum ip_set_ext_id id;
+	size_t offset = 0;
+	u32 cadt_flags = 0;
+
+	if (tb[IPSET_ATTR_CADT_FLAGS])
+		cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
+	for (id = 0; id < IPSET_EXT_ID_MAX; id++) {
+		if (!add_extension(id, cadt_flags, tb))
+			continue;
+		offset += ALIGN(len + offset, ip_set_extensions[id].align);
+		set->offset[id] = offset;
+		set->extensions |= ip_set_extensions[id].type;
+		offset += ip_set_extensions[id].len;
+	}
+	return len + offset;
+}
+EXPORT_SYMBOL_GPL(ip_set_elem_len);
+
 int
 ip_set_get_extensions(struct ip_set *set, struct nlattr *tb[],
 		      struct ip_set_ext *ext)
diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index 0cb840e1f8ae..3999f1719f69 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -960,7 +960,6 @@ static int
 IPSET_TOKEN(HTYPE, _create)(struct ip_set *set, struct nlattr *tb[], u32 flags)
 {
 	u32 hashsize = IPSET_DEFAULT_HASHSIZE, maxelem = IPSET_DEFAULT_MAXELEM;
-	u32 cadt_flags = 0;
 	u8 hbits;
 #ifdef IP_SET_HASH_WITH_NETMASK
 	u8 netmask;
@@ -1034,88 +1033,23 @@ IPSET_TOKEN(HTYPE, _create)(struct ip_set *set, struct nlattr *tb[], u32 flags)
 	rcu_assign_pointer(h->table, t);
 
 	set->data = h;
-	if (set->family ==  NFPROTO_IPV4)
+	if (set->family ==  NFPROTO_IPV4) {
 		set->variant = &IPSET_TOKEN(HTYPE, 4_variant);
-	else
+		set->dsize = ip_set_elem_len(set, tb,
+				sizeof(struct IPSET_TOKEN(HTYPE, 4_elem)));
+	} else {
 		set->variant = &IPSET_TOKEN(HTYPE, 6_variant);
-
-	if (tb[IPSET_ATTR_CADT_FLAGS])
-		cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
-	if (cadt_flags & IPSET_FLAG_WITH_COUNTERS) {
-		set->extensions |= IPSET_EXT_COUNTER;
-		if (tb[IPSET_ATTR_TIMEOUT]) {
-			set->timeout =
-				ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
-			set->extensions |= IPSET_EXT_TIMEOUT;
-			if (set->family == NFPROTO_IPV4) {
-				set->dsize = sizeof(struct
-					IPSET_TOKEN(HTYPE, 4ct_elem));
-				set->offset[IPSET_EXT_ID_TIMEOUT] =
-					offsetof(struct
-						IPSET_TOKEN(HTYPE, 4ct_elem),
-						timeout);
-				set->offset[IPSET_EXT_ID_COUNTER] =
-					offsetof(struct
-						IPSET_TOKEN(HTYPE, 4ct_elem),
-						counter);
-				IPSET_TOKEN(HTYPE, 4_gc_init)(set,
-					IPSET_TOKEN(HTYPE, 4_gc));
-			} else {
-				set->dsize = sizeof(struct
-					IPSET_TOKEN(HTYPE, 6ct_elem));
-				set->offset[IPSET_EXT_ID_TIMEOUT] =
-					offsetof(struct
-						IPSET_TOKEN(HTYPE, 6ct_elem),
-						timeout);
-				set->offset[IPSET_EXT_ID_COUNTER] =
-					offsetof(struct
-						IPSET_TOKEN(HTYPE, 6ct_elem),
-						counter);
-				IPSET_TOKEN(HTYPE, 6_gc_init)(set,
-					IPSET_TOKEN(HTYPE, 6_gc));
-			}
-		} else {
-			if (set->family == NFPROTO_IPV4) {
-				set->dsize =
-					sizeof(struct
-						IPSET_TOKEN(HTYPE, 4c_elem));
-				set->offset[IPSET_EXT_ID_COUNTER] =
-					offsetof(struct
-						IPSET_TOKEN(HTYPE, 4c_elem),
-						counter);
-			} else {
-				set->dsize =
-					sizeof(struct
-						IPSET_TOKEN(HTYPE, 6c_elem));
-				set->offset[IPSET_EXT_ID_COUNTER] =
-					offsetof(struct
-						IPSET_TOKEN(HTYPE, 6c_elem),
-						counter);
-			}
-		}
-	} else if (tb[IPSET_ATTR_TIMEOUT]) {
+		set->dsize = ip_set_elem_len(set, tb,
+				sizeof(struct IPSET_TOKEN(HTYPE, 6_elem)));
+	}
+	if (tb[IPSET_ATTR_TIMEOUT]) {
 		set->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
-		set->extensions |= IPSET_EXT_TIMEOUT;
-		if (set->family == NFPROTO_IPV4) {
-			set->dsize = sizeof(struct IPSET_TOKEN(HTYPE, 4t_elem));
-			set->offset[IPSET_EXT_ID_TIMEOUT] =
-				offsetof(struct IPSET_TOKEN(HTYPE, 4t_elem),
-					 timeout);
+		if (set->family == NFPROTO_IPV4)
 			IPSET_TOKEN(HTYPE, 4_gc_init)(set,
 				IPSET_TOKEN(HTYPE, 4_gc));
-		} else {
-			set->dsize = sizeof(struct IPSET_TOKEN(HTYPE, 6t_elem));
-			set->offset[IPSET_EXT_ID_TIMEOUT] =
-				offsetof(struct IPSET_TOKEN(HTYPE, 6t_elem),
-					 timeout);
+		else
 			IPSET_TOKEN(HTYPE, 6_gc_init)(set,
 				IPSET_TOKEN(HTYPE, 6_gc));
-		}
-	} else {
-		if (set->family == NFPROTO_IPV4)
-			set->dsize = sizeof(struct IPSET_TOKEN(HTYPE, 4_elem));
-		else
-			set->dsize = sizeof(struct IPSET_TOKEN(HTYPE, 6_elem));
 	}
 
 	pr_debug("create %s hashsize %u (%u) maxelem %u: %p(%p)\n",
diff --git a/net/netfilter/ipset/ip_set_hash_ip.c b/net/netfilter/ipset/ip_set_hash_ip.c
index bbde7c304622..a111ffe40b46 100644
--- a/net/netfilter/ipset/ip_set_hash_ip.c
+++ b/net/netfilter/ipset/ip_set_hash_ip.c
@@ -35,7 +35,7 @@ MODULE_ALIAS("ip_set_hash:ip");
 #define HTYPE		hash_ip
 #define IP_SET_HASH_WITH_NETMASK
 
-/* IPv4 variants */
+/* IPv4 variant */
 
 /* Member elements */
 struct hash_ip4_elem {
@@ -43,22 +43,6 @@ struct hash_ip4_elem {
 	__be32 ip;
 };
 
-struct hash_ip4t_elem {
-	__be32 ip;
-	unsigned long timeout;
-};
-
-struct hash_ip4c_elem {
-	__be32 ip;
-	struct ip_set_counter counter;
-};
-
-struct hash_ip4ct_elem {
-	__be32 ip;
-	struct ip_set_counter counter;
-	unsigned long timeout;
-};
-
 /* Common functions */
 
 static inline bool
@@ -178,29 +162,13 @@ hash_ip4_uadt(struct ip_set *set, struct nlattr *tb[],
 	return ret;
 }
 
-/* IPv6 variants */
+/* IPv6 variant */
 
 /* Member elements */
 struct hash_ip6_elem {
 	union nf_inet_addr ip;
 };
 
-struct hash_ip6t_elem {
-	union nf_inet_addr ip;
-	unsigned long timeout;
-};
-
-struct hash_ip6c_elem {
-	union nf_inet_addr ip;
-	struct ip_set_counter counter;
-};
-
-struct hash_ip6ct_elem {
-	union nf_inet_addr ip;
-	struct ip_set_counter counter;
-	unsigned long timeout;
-};
-
 /* Common functions */
 
 static inline bool
diff --git a/net/netfilter/ipset/ip_set_hash_ipport.c b/net/netfilter/ipset/ip_set_hash_ipport.c
index dd175d6f3965..5dc735c4dac2 100644
--- a/net/netfilter/ipset/ip_set_hash_ipport.c
+++ b/net/netfilter/ipset/ip_set_hash_ipport.c
@@ -36,7 +36,7 @@ MODULE_ALIAS("ip_set_hash:ip,port");
 /* Type specific function prefix */
 #define HTYPE		hash_ipport
 
-/* IPv4 variants */
+/* IPv4 variant */
 
 /* Member elements */
 struct hash_ipport4_elem {
@@ -46,31 +46,6 @@ struct hash_ipport4_elem {
 	u8 padding;
 };
 
-struct hash_ipport4t_elem {
-	__be32 ip;
-	__be16 port;
-	u8 proto;
-	u8 padding;
-	unsigned long timeout;
-};
-
-struct hash_ipport4c_elem {
-	__be32 ip;
-	__be16 port;
-	u8 proto;
-	u8 padding;
-	struct ip_set_counter counter;
-};
-
-struct hash_ipport4ct_elem {
-	__be32 ip;
-	__be16 port;
-	u8 proto;
-	u8 padding;
-	struct ip_set_counter counter;
-	unsigned long timeout;
-};
-
 /* Common functions */
 
 static inline bool
@@ -221,7 +196,7 @@ hash_ipport4_uadt(struct ip_set *set, struct nlattr *tb[],
 	return ret;
 }
 
-/* IPv6 variants */
+/* IPv6 variant */
 
 struct hash_ipport6_elem {
 	union nf_inet_addr ip;
@@ -230,31 +205,6 @@ struct hash_ipport6_elem {
 	u8 padding;
 };
 
-struct hash_ipport6t_elem {
-	union nf_inet_addr ip;
-	__be16 port;
-	u8 proto;
-	u8 padding;
-	unsigned long timeout;
-};
-
-struct hash_ipport6c_elem {
-	union nf_inet_addr ip;
-	__be16 port;
-	u8 proto;
-	u8 padding;
-	struct ip_set_counter counter;
-};
-
-struct hash_ipport6ct_elem {
-	union nf_inet_addr ip;
-	__be16 port;
-	u8 proto;
-	u8 padding;
-	struct ip_set_counter counter;
-	unsigned long timeout;
-};
-
 /* Common functions */
 
 static inline bool
diff --git a/net/netfilter/ipset/ip_set_hash_ipportip.c b/net/netfilter/ipset/ip_set_hash_ipportip.c
index 87a2cfab2568..8c43dc7811cb 100644
--- a/net/netfilter/ipset/ip_set_hash_ipportip.c
+++ b/net/netfilter/ipset/ip_set_hash_ipportip.c
@@ -36,7 +36,7 @@ MODULE_ALIAS("ip_set_hash:ip,port,ip");
 /* Type specific function prefix */
 #define HTYPE		hash_ipportip
 
-/* IPv4 variants */
+/* IPv4 variant */
 
 /* Member elements  */
 struct hash_ipportip4_elem {
@@ -47,34 +47,6 @@ struct hash_ipportip4_elem {
 	u8 padding;
 };
 
-struct hash_ipportip4t_elem {
-	__be32 ip;
-	__be32 ip2;
-	__be16 port;
-	u8 proto;
-	u8 padding;
-	unsigned long timeout;
-};
-
-struct hash_ipportip4c_elem {
-	__be32 ip;
-	__be32 ip2;
-	__be16 port;
-	u8 proto;
-	u8 padding;
-	struct ip_set_counter counter;
-};
-
-struct hash_ipportip4ct_elem {
-	__be32 ip;
-	__be32 ip2;
-	__be16 port;
-	u8 proto;
-	u8 padding;
-	struct ip_set_counter counter;
-	unsigned long timeout;
-};
-
 static inline bool
 hash_ipportip4_data_equal(const struct hash_ipportip4_elem *ip1,
 			  const struct hash_ipportip4_elem *ip2,
@@ -230,7 +202,7 @@ hash_ipportip4_uadt(struct ip_set *set, struct nlattr *tb[],
 	return ret;
 }
 
-/* IPv6 variants */
+/* IPv6 variant */
 
 struct hash_ipportip6_elem {
 	union nf_inet_addr ip;
@@ -240,34 +212,6 @@ struct hash_ipportip6_elem {
 	u8 padding;
 };
 
-struct hash_ipportip6t_elem {
-	union nf_inet_addr ip;
-	union nf_inet_addr ip2;
-	__be16 port;
-	u8 proto;
-	u8 padding;
-	unsigned long timeout;
-};
-
-struct hash_ipportip6c_elem {
-	union nf_inet_addr ip;
-	union nf_inet_addr ip2;
-	__be16 port;
-	u8 proto;
-	u8 padding;
-	struct ip_set_counter counter;
-};
-
-struct hash_ipportip6ct_elem {
-	union nf_inet_addr ip;
-	union nf_inet_addr ip2;
-	__be16 port;
-	u8 proto;
-	u8 padding;
-	struct ip_set_counter counter;
-	unsigned long timeout;
-};
-
 /* Common functions */
 
 static inline bool
diff --git a/net/netfilter/ipset/ip_set_hash_ipportnet.c b/net/netfilter/ipset/ip_set_hash_ipportnet.c
index 0b9a28d7c740..34890452366c 100644
--- a/net/netfilter/ipset/ip_set_hash_ipportnet.c
+++ b/net/netfilter/ipset/ip_set_hash_ipportnet.c
@@ -46,7 +46,7 @@ MODULE_ALIAS("ip_set_hash:ip,port,net");
 #define IP_SET_HASH_WITH_PROTO
 #define IP_SET_HASH_WITH_NETS
 
-/* IPv4 variants */
+/* IPv4 variant */
 
 /* Member elements */
 struct hash_ipportnet4_elem {
@@ -58,37 +58,6 @@ struct hash_ipportnet4_elem {
 	u8 proto;
 };
 
-struct hash_ipportnet4t_elem {
-	__be32 ip;
-	__be32 ip2;
-	__be16 port;
-	u8 cidr:7;
-	u8 nomatch:1;
-	u8 proto;
-	unsigned long timeout;
-};
-
-struct hash_ipportnet4c_elem {
-	__be32 ip;
-	__be32 ip2;
-	__be16 port;
-	u8 cidr:7;
-	u8 nomatch:1;
-	u8 proto;
-	struct ip_set_counter counter;
-};
-
-struct hash_ipportnet4ct_elem {
-	__be32 ip;
-	__be32 ip2;
-	__be16 port;
-	u8 cidr:7;
-	u8 nomatch:1;
-	u8 proto;
-	struct ip_set_counter counter;
-	unsigned long timeout;
-};
-
 /* Common functions */
 
 static inline bool
@@ -328,7 +297,7 @@ hash_ipportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
 	return ret;
 }
 
-/* IPv6 variants */
+/* IPv6 variant */
 
 struct hash_ipportnet6_elem {
 	union nf_inet_addr ip;
@@ -339,37 +308,6 @@ struct hash_ipportnet6_elem {
 	u8 proto;
 };
 
-struct hash_ipportnet6t_elem {
-	union nf_inet_addr ip;
-	union nf_inet_addr ip2;
-	__be16 port;
-	u8 cidr:7;
-	u8 nomatch:1;
-	u8 proto;
-	unsigned long timeout;
-};
-
-struct hash_ipportnet6c_elem {
-	union nf_inet_addr ip;
-	union nf_inet_addr ip2;
-	__be16 port;
-	u8 cidr:7;
-	u8 nomatch:1;
-	u8 proto;
-	struct ip_set_counter counter;
-};
-
-struct hash_ipportnet6ct_elem {
-	union nf_inet_addr ip;
-	union nf_inet_addr ip2;
-	__be16 port;
-	u8 cidr:7;
-	u8 nomatch:1;
-	u8 proto;
-	struct ip_set_counter counter;
-	unsigned long timeout;
-};
-
 /* Common functions */
 
 static inline bool
diff --git a/net/netfilter/ipset/ip_set_hash_net.c b/net/netfilter/ipset/ip_set_hash_net.c
index 1d4caa50dacb..d5598557f4a9 100644
--- a/net/netfilter/ipset/ip_set_hash_net.c
+++ b/net/netfilter/ipset/ip_set_hash_net.c
@@ -36,7 +36,7 @@ MODULE_ALIAS("ip_set_hash:net");
 #define HTYPE		hash_net
 #define IP_SET_HASH_WITH_NETS
 
-/* IPv4 variants */
+/* IPv4 variant */
 
 /* Member elements  */
 struct hash_net4_elem {
@@ -46,31 +46,6 @@ struct hash_net4_elem {
 	u8 cidr;
 };
 
-struct hash_net4t_elem {
-	__be32 ip;
-	u16 padding0;
-	u8 nomatch;
-	u8 cidr;
-	unsigned long timeout;
-};
-
-struct hash_net4c_elem {
-	__be32 ip;
-	u16 padding0;
-	u8 nomatch;
-	u8 cidr;
-	struct ip_set_counter counter;
-};
-
-struct hash_net4ct_elem {
-	__be32 ip;
-	u16 padding0;
-	u8 nomatch;
-	u8 cidr;
-	struct ip_set_counter counter;
-	unsigned long timeout;
-};
-
 /* Common functions */
 
 static inline bool
@@ -228,7 +203,7 @@ hash_net4_uadt(struct ip_set *set, struct nlattr *tb[],
 	return ret;
 }
 
-/* IPv6 variants */
+/* IPv6 variant */
 
 struct hash_net6_elem {
 	union nf_inet_addr ip;
@@ -237,31 +212,6 @@ struct hash_net6_elem {
 	u8 cidr;
 };
 
-struct hash_net6t_elem {
-	union nf_inet_addr ip;
-	u16 padding0;
-	u8 nomatch;
-	u8 cidr;
-	unsigned long timeout;
-};
-
-struct hash_net6c_elem {
-	union nf_inet_addr ip;
-	u16 padding0;
-	u8 nomatch;
-	u8 cidr;
-	struct ip_set_counter counter;
-};
-
-struct hash_net6ct_elem {
-	union nf_inet_addr ip;
-	u16 padding0;
-	u8 nomatch;
-	u8 cidr;
-	struct ip_set_counter counter;
-	unsigned long timeout;
-};
-
 /* Common functions */
 
 static inline bool
diff --git a/net/netfilter/ipset/ip_set_hash_netiface.c b/net/netfilter/ipset/ip_set_hash_netiface.c
index 2f0ffe35c408..26703e9e5082 100644
--- a/net/netfilter/ipset/ip_set_hash_netiface.c
+++ b/net/netfilter/ipset/ip_set_hash_netiface.c
@@ -134,7 +134,7 @@ iface_add(struct rb_root *root, const char **iface)
 
 #define STREQ(a, b)	(strcmp(a, b) == 0)
 
-/* IPv4 variants */
+/* IPv4 variant */
 
 struct hash_netiface4_elem_hashed {
 	__be32 ip;
@@ -144,7 +144,7 @@ struct hash_netiface4_elem_hashed {
 	u8 elem;
 };
 
-/* Member elements without timeout */
+/* Member elements */
 struct hash_netiface4_elem {
 	__be32 ip;
 	u8 physdev;
@@ -154,37 +154,6 @@ struct hash_netiface4_elem {
 	const char *iface;
 };
 
-struct hash_netiface4t_elem {
-	__be32 ip;
-	u8 physdev;
-	u8 cidr;
-	u8 nomatch;
-	u8 elem;
-	const char *iface;
-	unsigned long timeout;
-};
-
-struct hash_netiface4c_elem {
-	__be32 ip;
-	u8 physdev;
-	u8 cidr;
-	u8 nomatch;
-	u8 elem;
-	const char *iface;
-	struct ip_set_counter counter;
-};
-
-struct hash_netiface4ct_elem {
-	__be32 ip;
-	u8 physdev;
-	u8 cidr;
-	u8 nomatch;
-	u8 elem;
-	const char *iface;
-	struct ip_set_counter counter;
-	unsigned long timeout;
-};
-
 /* Common functions */
 
 static inline bool
@@ -399,7 +368,7 @@ hash_netiface4_uadt(struct ip_set *set, struct nlattr *tb[],
 	return ret;
 }
 
-/* IPv6 variants */
+/* IPv6 variant */
 
 struct hash_netiface6_elem_hashed {
 	union nf_inet_addr ip;
@@ -418,37 +387,6 @@ struct hash_netiface6_elem {
 	const char *iface;
 };
 
-struct hash_netiface6t_elem {
-	union nf_inet_addr ip;
-	u8 physdev;
-	u8 cidr;
-	u8 nomatch;
-	u8 elem;
-	const char *iface;
-	unsigned long timeout;
-};
-
-struct hash_netiface6c_elem {
-	union nf_inet_addr ip;
-	u8 physdev;
-	u8 cidr;
-	u8 nomatch;
-	u8 elem;
-	const char *iface;
-	struct ip_set_counter counter;
-};
-
-struct hash_netiface6ct_elem {
-	union nf_inet_addr ip;
-	u8 physdev;
-	u8 cidr;
-	u8 nomatch;
-	u8 elem;
-	const char *iface;
-	struct ip_set_counter counter;
-	unsigned long timeout;
-};
-
 /* Common functions */
 
 static inline bool
diff --git a/net/netfilter/ipset/ip_set_hash_netport.c b/net/netfilter/ipset/ip_set_hash_netport.c
index cab236625f97..45b6e91b0636 100644
--- a/net/netfilter/ipset/ip_set_hash_netport.c
+++ b/net/netfilter/ipset/ip_set_hash_netport.c
@@ -45,7 +45,7 @@ MODULE_ALIAS("ip_set_hash:net,port");
  */
 #define IP_SET_HASH_WITH_NETS_PACKED
 
-/* IPv4 variants */
+/* IPv4 variant */
 
 /* Member elements */
 struct hash_netport4_elem {
@@ -56,34 +56,6 @@ struct hash_netport4_elem {
 	u8 nomatch:1;
 };
 
-struct hash_netport4t_elem {
-	__be32 ip;
-	__be16 port;
-	u8 proto;
-	u8 cidr:7;
-	u8 nomatch:1;
-	unsigned long timeout;
-};
-
-struct hash_netport4c_elem {
-	__be32 ip;
-	__be16 port;
-	u8 proto;
-	u8 cidr:7;
-	u8 nomatch:1;
-	struct ip_set_counter counter;
-};
-
-struct hash_netport4ct_elem {
-	__be32 ip;
-	__be16 port;
-	u8 proto;
-	u8 cidr:7;
-	u8 nomatch:1;
-	struct ip_set_counter counter;
-	unsigned long timeout;
-};
-
 /* Common functions */
 
 static inline bool
@@ -287,7 +259,7 @@ hash_netport4_uadt(struct ip_set *set, struct nlattr *tb[],
 	return ret;
 }
 
-/* IPv6 variants */
+/* IPv6 variant */
 
 struct hash_netport6_elem {
 	union nf_inet_addr ip;
@@ -297,34 +269,6 @@ struct hash_netport6_elem {
 	u8 nomatch:1;
 };
 
-struct hash_netport6t_elem {
-	union nf_inet_addr ip;
-	__be16 port;
-	u8 proto;
-	u8 cidr:7;
-	u8 nomatch:1;
-	unsigned long timeout;
-};
-
-struct hash_netport6c_elem {
-	union nf_inet_addr ip;
-	__be16 port;
-	u8 proto;
-	u8 cidr:7;
-	u8 nomatch:1;
-	struct ip_set_counter counter;
-};
-
-struct hash_netport6ct_elem {
-	union nf_inet_addr ip;
-	__be16 port;
-	u8 proto;
-	u8 cidr:7;
-	u8 nomatch:1;
-	struct ip_set_counter counter;
-	unsigned long timeout;
-};
-
 /* Common functions */
 
 static inline bool
diff --git a/net/netfilter/ipset/ip_set_list_set.c b/net/netfilter/ipset/ip_set_list_set.c
index f22d05d6e366..7fd11c79aff4 100644
--- a/net/netfilter/ipset/ip_set_list_set.c
+++ b/net/netfilter/ipset/ip_set_list_set.c
@@ -28,28 +28,6 @@ struct set_elem {
 	ip_set_id_t id;
 };
 
-struct sett_elem {
-	struct {
-		ip_set_id_t id;
-	} __attribute__ ((aligned));
-	unsigned long timeout;
-};
-
-struct setc_elem {
-	struct {
-		ip_set_id_t id;
-	} __attribute__ ((aligned));
-	struct ip_set_counter counter;
-};
-
-struct setct_elem {
-	struct {
-		ip_set_id_t id;
-	} __attribute__ ((aligned));
-	struct ip_set_counter counter;
-	unsigned long timeout;
-};
-
 struct set_adt_elem {
 	ip_set_id_t id;
 	ip_set_id_t refid;
@@ -600,21 +578,18 @@ list_set_gc_init(struct ip_set *set, void (*gc)(unsigned long ul_set))
 
 /* Create list:set type of sets */
 
-static struct list_set *
-init_list_set(struct ip_set *set, u32 size, size_t dsize,
-	      unsigned long timeout)
+static bool
+init_list_set(struct ip_set *set, u32 size)
 {
 	struct list_set *map;
 	struct set_elem *e;
 	u32 i;
 
-	map = kzalloc(sizeof(*map) + size * dsize, GFP_KERNEL);
+	map = kzalloc(sizeof(*map) + size * set->dsize, GFP_KERNEL);
 	if (!map)
-		return NULL;
+		return false;
 
 	map->size = size;
-	set->dsize = dsize;
-	set->timeout = timeout;
 	set->data = map;
 
 	for (i = 0; i < size; i++) {
@@ -622,15 +597,13 @@ init_list_set(struct ip_set *set, u32 size, size_t dsize,
 		e->id = IPSET_INVALID_ID;
 	}
 
-	return map;
+	return true;
 }
 
 static int
 list_set_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 {
-	struct list_set *map;
-	u32 size = IP_SET_LIST_DEFAULT_SIZE, cadt_flags = 0;
-	unsigned long timeout = 0;
+	u32 size = IP_SET_LIST_DEFAULT_SIZE;
 
 	if (unlikely(!ip_set_optattr_netorder(tb, IPSET_ATTR_SIZE) ||
 		     !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
@@ -642,45 +615,13 @@ list_set_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 	if (size < IP_SET_LIST_MIN_SIZE)
 		size = IP_SET_LIST_MIN_SIZE;
 
-	if (tb[IPSET_ATTR_CADT_FLAGS])
-		cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
-	if (tb[IPSET_ATTR_TIMEOUT])
-		timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
 	set->variant = &set_variant;
-	if (cadt_flags & IPSET_FLAG_WITH_COUNTERS) {
-		set->extensions |= IPSET_EXT_COUNTER;
-		if (tb[IPSET_ATTR_TIMEOUT]) {
-			map = init_list_set(set, size,
-					sizeof(struct setct_elem), timeout);
-			if (!map)
-				return -ENOMEM;
-			set->extensions |= IPSET_EXT_TIMEOUT;
-			set->offset[IPSET_EXT_ID_TIMEOUT] =
-				offsetof(struct setct_elem, timeout);
-			set->offset[IPSET_EXT_ID_COUNTER] =
-				offsetof(struct setct_elem, counter);
-			list_set_gc_init(set, list_set_gc);
-		} else {
-			map = init_list_set(set, size,
-					    sizeof(struct setc_elem), 0);
-			if (!map)
-				return -ENOMEM;
-			set->offset[IPSET_EXT_ID_COUNTER] =
-				offsetof(struct setc_elem, counter);
-		}
-	} else if (tb[IPSET_ATTR_TIMEOUT]) {
-		map = init_list_set(set, size,
-				    sizeof(struct sett_elem), timeout);
-		if (!map)
-			return -ENOMEM;
-		set->extensions |= IPSET_EXT_TIMEOUT;
-		set->offset[IPSET_EXT_ID_TIMEOUT] =
-			offsetof(struct sett_elem, timeout);
+	set->dsize = ip_set_elem_len(set, tb, sizeof(struct set_elem));
+	if (!init_list_set(set, size))
+		return -ENOMEM;
+	if (tb[IPSET_ATTR_TIMEOUT]) {
+		set->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
 		list_set_gc_init(set, list_set_gc);
-	} else {
-		map = init_list_set(set, size, sizeof(struct set_elem), 0);
-		if (!map)
-			return -ENOMEM;
 	}
 	return 0;
 }
-- 
cgit 


From 40cd63bf33b21ef4d43776b1d49c605f876fe32c Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Mon, 9 Sep 2013 14:44:29 +0200
Subject: netfilter: ipset: Support extensions which need a per data destroy
 function

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 include/linux/netfilter/ipset/ip_set.h  | 22 +++++++---
 net/netfilter/ipset/ip_set_bitmap_gen.h | 38 ++++++++++++++----
 net/netfilter/ipset/ip_set_hash_gen.h   | 71 +++++++++++++++++++++------------
 net/netfilter/ipset/ip_set_list_set.c   | 19 ++++++---
 4 files changed, 107 insertions(+), 43 deletions(-)

diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h
index 66d6bd404d64..6372ee224fe8 100644
--- a/include/linux/netfilter/ipset/ip_set.h
+++ b/include/linux/netfilter/ipset/ip_set.h
@@ -49,11 +49,13 @@ enum ip_set_feature {
 
 /* Set extensions */
 enum ip_set_extension {
-	IPSET_EXT_NONE = 0,
-	IPSET_EXT_BIT_TIMEOUT = 1,
+	IPSET_EXT_BIT_TIMEOUT = 0,
 	IPSET_EXT_TIMEOUT = (1 << IPSET_EXT_BIT_TIMEOUT),
-	IPSET_EXT_BIT_COUNTER = 2,
+	IPSET_EXT_BIT_COUNTER = 1,
 	IPSET_EXT_COUNTER = (1 << IPSET_EXT_BIT_COUNTER),
+	/* Mark set with an extension which needs to call destroy */
+	IPSET_EXT_BIT_DESTROY = 7,
+	IPSET_EXT_DESTROY = (1 << IPSET_EXT_BIT_DESTROY),
 };
 
 #define SET_WITH_TIMEOUT(s)	((s)->extensions & IPSET_EXT_TIMEOUT)
@@ -68,6 +70,8 @@ enum ip_set_ext_id {
 
 /* Extension type */
 struct ip_set_ext_type {
+	/* Destroy extension private data (can be NULL) */
+	void (*destroy)(void *ext);
 	enum ip_set_extension type;
 	enum ipset_cadt_flags flag;
 	/* Size and minimal alignment */
@@ -88,13 +92,21 @@ struct ip_set_counter {
 	atomic64_t packets;
 };
 
+struct ip_set;
+
+static inline void
+ip_set_ext_destroy(struct ip_set *set, void *data)
+{
+	/* Check that the extension is enabled for the set and
+	 * call it's destroy function for its extension part in data.
+	 */
+}
+
 #define ext_timeout(e, s)	\
 (unsigned long *)(((void *)(e)) + (s)->offset[IPSET_EXT_ID_TIMEOUT])
 #define ext_counter(e, s)	\
 (struct ip_set_counter *)(((void *)(e)) + (s)->offset[IPSET_EXT_ID_COUNTER])
 
-struct ip_set;
-
 typedef int (*ipset_adtfn)(struct ip_set *set, void *value,
 			   const struct ip_set_ext *ext,
 			   struct ip_set_ext *mext, u32 cmdflags);
diff --git a/net/netfilter/ipset/ip_set_bitmap_gen.h b/net/netfilter/ipset/ip_set_bitmap_gen.h
index f32ddbca3923..4515fe8b83dd 100644
--- a/net/netfilter/ipset/ip_set_bitmap_gen.h
+++ b/net/netfilter/ipset/ip_set_bitmap_gen.h
@@ -12,6 +12,7 @@
 #define mtype_gc_test		IPSET_TOKEN(MTYPE, _gc_test)
 #define mtype_is_filled		IPSET_TOKEN(MTYPE, _is_filled)
 #define mtype_do_add		IPSET_TOKEN(MTYPE, _do_add)
+#define mtype_ext_cleanup	IPSET_TOKEN(MTYPE, _ext_cleanup)
 #define mtype_do_del		IPSET_TOKEN(MTYPE, _do_del)
 #define mtype_do_list		IPSET_TOKEN(MTYPE, _do_list)
 #define mtype_do_head		IPSET_TOKEN(MTYPE, _do_head)
@@ -46,6 +47,17 @@ mtype_gc_init(struct ip_set *set, void (*gc)(unsigned long ul_set))
 	add_timer(&map->gc);
 }
 
+static void
+mtype_ext_cleanup(struct ip_set *set)
+{
+	struct mtype *map = set->data;
+	u32 id;
+
+	for (id = 0; id < map->elements; id++)
+		if (test_bit(id, map->members))
+			ip_set_ext_destroy(set, get_ext(set, map, id));
+}
+
 static void
 mtype_destroy(struct ip_set *set)
 {
@@ -55,8 +67,11 @@ mtype_destroy(struct ip_set *set)
 		del_timer_sync(&map->gc);
 
 	ip_set_free(map->members);
-	if (set->dsize)
+	if (set->dsize) {
+		if (set->extensions & IPSET_EXT_DESTROY)
+			mtype_ext_cleanup(set);
 		ip_set_free(map->extensions);
+	}
 	kfree(map);
 
 	set->data = NULL;
@@ -67,6 +82,8 @@ mtype_flush(struct ip_set *set)
 {
 	struct mtype *map = set->data;
 
+	if (set->extensions & IPSET_EXT_DESTROY)
+		mtype_ext_cleanup(set);
 	memset(map->members, 0, map->memsize);
 }
 
@@ -132,6 +149,8 @@ mtype_add(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 			ret = 0;
 		else if (!(flags & IPSET_FLAG_EXIST))
 			return -IPSET_ERR_EXIST;
+		/* Element is re-added, cleanup extensions */
+		ip_set_ext_destroy(set, x);
 	}
 
 	if (SET_WITH_TIMEOUT(set))
@@ -152,11 +171,14 @@ mtype_del(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 {
 	struct mtype *map = set->data;
 	const struct mtype_adt_elem *e = value;
-	const void *x = get_ext(set, map, e->id);
+	void *x = get_ext(set, map, e->id);
 
-	if (mtype_do_del(e, map) ||
-	    (SET_WITH_TIMEOUT(set) &&
-	     ip_set_timeout_expired(ext_timeout(x, set))))
+	if (mtype_do_del(e, map))
+		return -IPSET_ERR_EXIST;
+
+	ip_set_ext_destroy(set, x);
+	if (SET_WITH_TIMEOUT(set) &&
+	    ip_set_timeout_expired(ext_timeout(x, set)))
 		return -IPSET_ERR_EXIST;
 
 	return 0;
@@ -235,7 +257,7 @@ mtype_gc(unsigned long ul_set)
 {
 	struct ip_set *set = (struct ip_set *) ul_set;
 	struct mtype *map = set->data;
-	const void *x;
+	void *x;
 	u32 id;
 
 	/* We run parallel with other readers (test element)
@@ -244,8 +266,10 @@ mtype_gc(unsigned long ul_set)
 	for (id = 0; id < map->elements; id++)
 		if (mtype_gc_test(id, map, set->dsize)) {
 			x = get_ext(set, map, id);
-			if (ip_set_timeout_expired(ext_timeout(x, set)))
+			if (ip_set_timeout_expired(ext_timeout(x, set))) {
 				clear_bit(id, map->members);
+				ip_set_ext_destroy(set, x);
+			}
 		}
 	read_unlock_bh(&set->lock);
 
diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index 3999f1719f69..3c26e5b946f5 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -117,23 +117,6 @@ htable_bits(u32 hashsize)
 	return bits;
 }
 
-/* Destroy the hashtable part of the set */
-static void
-ahash_destroy(struct htable *t)
-{
-	struct hbucket *n;
-	u32 i;
-
-	for (i = 0; i < jhash_size(t->htable_bits); i++) {
-		n = hbucket(t, i);
-		if (n->size)
-			/* FIXME: use slab cache */
-			kfree(n->value);
-	}
-
-	ip_set_free(t);
-}
-
 static int
 hbucket_elem_add(struct hbucket *n, u8 ahash_max, size_t dsize)
 {
@@ -192,6 +175,8 @@ hbucket_elem_add(struct hbucket *n, u8 ahash_max, size_t dsize)
 #undef mtype_data_next
 #undef mtype_elem
 
+#undef mtype_ahash_destroy
+#undef mtype_ext_cleanup
 #undef mtype_add_cidr
 #undef mtype_del_cidr
 #undef mtype_ahash_memsize
@@ -230,6 +215,8 @@ hbucket_elem_add(struct hbucket *n, u8 ahash_max, size_t dsize)
 #define mtype_data_list		IPSET_TOKEN(MTYPE, _data_list)
 #define mtype_data_next		IPSET_TOKEN(MTYPE, _data_next)
 #define mtype_elem		IPSET_TOKEN(MTYPE, _elem)
+#define mtype_ahash_destroy	IPSET_TOKEN(MTYPE, _ahash_destroy)
+#define mtype_ext_cleanup	IPSET_TOKEN(MTYPE, _ext_cleanup)
 #define mtype_add_cidr		IPSET_TOKEN(MTYPE, _add_cidr)
 #define mtype_del_cidr		IPSET_TOKEN(MTYPE, _del_cidr)
 #define mtype_ahash_memsize	IPSET_TOKEN(MTYPE, _ahash_memsize)
@@ -359,6 +346,19 @@ mtype_ahash_memsize(const struct htype *h, const struct htable *t,
 	return memsize;
 }
 
+/* Get the ith element from the array block n */
+#define ahash_data(n, i, dsize)	\
+	((struct mtype_elem *)((n)->value + ((i) * (dsize))))
+
+static void
+mtype_ext_cleanup(struct ip_set *set, struct hbucket *n)
+{
+	int i;
+
+	for (i = 0; i < n->pos; i++)
+		ip_set_ext_destroy(set, ahash_data(n, i, set->dsize));
+}
+
 /* Flush a hash type of set: destroy all elements */
 static void
 mtype_flush(struct ip_set *set)
@@ -372,6 +372,8 @@ mtype_flush(struct ip_set *set)
 	for (i = 0; i < jhash_size(t->htable_bits); i++) {
 		n = hbucket(t, i);
 		if (n->size) {
+			if (set->extensions & IPSET_EXT_DESTROY)
+				mtype_ext_cleanup(set, n);
 			n->size = n->pos = 0;
 			/* FIXME: use slab cache */
 			kfree(n->value);
@@ -383,6 +385,26 @@ mtype_flush(struct ip_set *set)
 	h->elements = 0;
 }
 
+/* Destroy the hashtable part of the set */
+static void
+mtype_ahash_destroy(struct ip_set *set, struct htable *t)
+{
+	struct hbucket *n;
+	u32 i;
+
+	for (i = 0; i < jhash_size(t->htable_bits); i++) {
+		n = hbucket(t, i);
+		if (n->size) {
+			if (set->extensions & IPSET_EXT_DESTROY)
+				mtype_ext_cleanup(set, n);
+			/* FIXME: use slab cache */
+			kfree(n->value);
+		}
+	}
+
+	ip_set_free(t);
+}
+
 /* Destroy a hash type of set */
 static void
 mtype_destroy(struct ip_set *set)
@@ -392,7 +414,7 @@ mtype_destroy(struct ip_set *set)
 	if (set->extensions & IPSET_EXT_TIMEOUT)
 		del_timer_sync(&h->gc);
 
-	ahash_destroy(rcu_dereference_bh_nfnl(h->table));
+	mtype_ahash_destroy(set, rcu_dereference_bh_nfnl(h->table));
 #ifdef IP_SET_HASH_WITH_RBTREE
 	rbtree_destroy(&h->rbtree);
 #endif
@@ -430,10 +452,6 @@ mtype_same_set(const struct ip_set *a, const struct ip_set *b)
 	       a->extensions == b->extensions;
 }
 
-/* Get the ith element from the array block n */
-#define ahash_data(n, i, dsize)	\
-	((struct mtype_elem *)((n)->value + ((i) * (dsize))))
-
 /* Delete expired elements from the hashtable */
 static void
 mtype_expire(struct ip_set *set, struct htype *h, u8 nets_length, size_t dsize)
@@ -456,6 +474,7 @@ mtype_expire(struct ip_set *set, struct htype *h, u8 nets_length, size_t dsize)
 				mtype_del_cidr(h, CIDR(data->cidr),
 					       nets_length, 0);
 #endif
+				ip_set_ext_destroy(set, data);
 				if (j != n->pos - 1)
 					/* Not last one */
 					memcpy(data,
@@ -557,7 +576,7 @@ retry:
 				mtype_data_reset_flags(data, &flags);
 #endif
 				read_unlock_bh(&set->lock);
-				ahash_destroy(t);
+				mtype_ahash_destroy(set, t);
 				if (ret == -EAGAIN)
 					goto retry;
 				return ret;
@@ -578,7 +597,7 @@ retry:
 
 	pr_debug("set %s resized from %u (%p) to %u (%p)\n", set->name,
 		 orig->htable_bits, orig, t->htable_bits, t);
-	ahash_destroy(orig);
+	mtype_ahash_destroy(set, orig);
 
 	return 0;
 }
@@ -642,6 +661,7 @@ reuse_slot:
 		mtype_del_cidr(h, CIDR(data->cidr), NLEN(set->family), 0);
 		mtype_add_cidr(h, CIDR(d->cidr), NLEN(set->family), 0);
 #endif
+		ip_set_ext_destroy(set, data);
 	} else {
 		/* Use/create a new slot */
 		TUNE_AHASH_MAX(h, multi);
@@ -707,6 +727,7 @@ mtype_del(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 #ifdef IP_SET_HASH_WITH_NETS
 		mtype_del_cidr(h, CIDR(d->cidr), NLEN(set->family), 0);
 #endif
+		ip_set_ext_destroy(set, data);
 		if (n->pos + AHASH_INIT_SIZE < n->size) {
 			void *tmp = kzalloc((n->size - AHASH_INIT_SIZE)
 					    * set->dsize,
@@ -1033,7 +1054,7 @@ IPSET_TOKEN(HTYPE, _create)(struct ip_set *set, struct nlattr *tb[], u32 flags)
 	rcu_assign_pointer(h->table, t);
 
 	set->data = h;
-	if (set->family ==  NFPROTO_IPV4) {
+	if (set->family == NFPROTO_IPV4) {
 		set->variant = &IPSET_TOKEN(HTYPE, 4_variant);
 		set->dsize = ip_set_elem_len(set, tb,
 				sizeof(struct IPSET_TOKEN(HTYPE, 4_elem)));
diff --git a/net/netfilter/ipset/ip_set_list_set.c b/net/netfilter/ipset/ip_set_list_set.c
index 7fd11c79aff4..e44986af1fc2 100644
--- a/net/netfilter/ipset/ip_set_list_set.c
+++ b/net/netfilter/ipset/ip_set_list_set.c
@@ -168,16 +168,19 @@ list_set_add(struct ip_set *set, u32 i, struct set_adt_elem *d,
 	struct set_elem *e = list_set_elem(set, map, i);
 
 	if (e->id != IPSET_INVALID_ID) {
-		if (i == map->size - 1)
+		if (i == map->size - 1) {
 			/* Last element replaced: e.g. add new,before,last */
 			ip_set_put_byindex(e->id);
-		else {
+			ip_set_ext_destroy(set, e);
+		} else {
 			struct set_elem *x = list_set_elem(set, map,
 							   map->size - 1);
 
 			/* Last element pushed off */
-			if (x->id != IPSET_INVALID_ID)
+			if (x->id != IPSET_INVALID_ID) {
 				ip_set_put_byindex(x->id);
+				ip_set_ext_destroy(set, x);
+			}
 			memmove(list_set_elem(set, map, i + 1), e,
 				set->dsize * (map->size - (i + 1)));
 		}
@@ -198,6 +201,7 @@ list_set_del(struct ip_set *set, u32 i)
 	struct set_elem *e = list_set_elem(set, map, i);
 
 	ip_set_put_byindex(e->id);
+	ip_set_ext_destroy(set, e);
 
 	if (i < map->size - 1)
 		memmove(e, list_set_elem(set, map, i + 1),
@@ -266,14 +270,14 @@ list_set_uadd(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 	bool flag_exist = flags & IPSET_FLAG_EXIST;
 	u32 i, ret = 0;
 
+	if (SET_WITH_TIMEOUT(set))
+		set_cleanup_entries(set);
+
 	/* Check already added element */
 	for (i = 0; i < map->size; i++) {
 		e = list_set_elem(set, map, i);
 		if (e->id == IPSET_INVALID_ID)
 			goto insert;
-		else if (SET_WITH_TIMEOUT(set) &&
-			 ip_set_timeout_expired(ext_timeout(e, set)))
-			continue;
 		else if (e->id != d->id)
 			continue;
 
@@ -286,6 +290,8 @@ list_set_uadd(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 			/* Can't re-add */
 			return -IPSET_ERR_EXIST;
 		/* Update extensions */
+		ip_set_ext_destroy(set, e);
+
 		if (SET_WITH_TIMEOUT(set))
 			ip_set_timeout_set(ext_timeout(e, set), ext->timeout);
 		if (SET_WITH_COUNTER(set))
@@ -423,6 +429,7 @@ list_set_flush(struct ip_set *set)
 		e = list_set_elem(set, map, i);
 		if (e->id != IPSET_INVALID_ID) {
 			ip_set_put_byindex(e->id);
+			ip_set_ext_destroy(set, e);
 			e->id = IPSET_INVALID_ID;
 		}
 	}
-- 
cgit 


From b91b396d5e35eef9938a56e781cb0171a53907ca Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Mon, 9 Sep 2013 17:10:20 +0200
Subject: netfilter: ipset: list:set: make sure all elements are checked by the
 gc

When an element timed out, the next one was skipped by the garbage
collector, fixed.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 net/netfilter/ipset/ip_set_list_set.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/ipset/ip_set_list_set.c b/net/netfilter/ipset/ip_set_list_set.c
index e44986af1fc2..30bf1dd11f04 100644
--- a/net/netfilter/ipset/ip_set_list_set.c
+++ b/net/netfilter/ipset/ip_set_list_set.c
@@ -218,13 +218,16 @@ set_cleanup_entries(struct ip_set *set)
 {
 	struct list_set *map = set->data;
 	struct set_elem *e;
-	u32 i;
+	u32 i = 0;
 
-	for (i = 0; i < map->size; i++) {
+	while (i < map->size) {
 		e = list_set_elem(set, map, i);
 		if (e->id != IPSET_INVALID_ID &&
 		    ip_set_timeout_expired(ext_timeout(e, set)))
 			list_set_del(set, i);
+			/* Check element moved to position i in next loop */
+		else
+			i++;
 	}
 }
 
-- 
cgit 


From d9628bbeca888fd1f9a9c57864dd90b7d25954e0 Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Mon, 30 Sep 2013 09:15:44 +0200
Subject: netfilter: ipset: Kconfig: ipset needs NETFILTER_NETLINK

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 net/netfilter/ipset/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/ipset/Kconfig b/net/netfilter/ipset/Kconfig
index ba36c283d837..fd2c14b6c51b 100644
--- a/net/netfilter/ipset/Kconfig
+++ b/net/netfilter/ipset/Kconfig
@@ -1,7 +1,7 @@
 menuconfig IP_SET
 	tristate "IP set support"
 	depends on INET && NETFILTER
-	depends on NETFILTER_NETLINK
+	select NETFILTER_NETLINK
 	help
 	  This option adds IP set support to the kernel.
 	  In order to define and use the sets, you need the userspace utility
-- 
cgit 


From ea53ac5b630e813aec20c7cdcfe511daca70dee4 Mon Sep 17 00:00:00 2001
From: Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>
Date: Fri, 20 Sep 2013 10:13:53 +0200
Subject: netfilter: ipset: Add hash:net,net module to kernel.

This adds a new set that provides the ability to configure pairs of
subnets. A small amount of additional handling code has been added to
the generic hash header file - this code is conditionally activated by a
preprocessor definition.

Signed-off-by: Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 net/netfilter/ipset/Kconfig              |   9 +
 net/netfilter/ipset/Makefile             |   1 +
 net/netfilter/ipset/ip_set_hash_gen.h    |  58 +++-
 net/netfilter/ipset/ip_set_hash_netnet.c | 482 +++++++++++++++++++++++++++++++
 4 files changed, 541 insertions(+), 9 deletions(-)
 create mode 100644 net/netfilter/ipset/ip_set_hash_netnet.c

diff --git a/net/netfilter/ipset/Kconfig b/net/netfilter/ipset/Kconfig
index fd2c14b6c51b..9119f658a69b 100644
--- a/net/netfilter/ipset/Kconfig
+++ b/net/netfilter/ipset/Kconfig
@@ -99,6 +99,15 @@ config IP_SET_HASH_NET
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
+config IP_SET_HASH_NETNET
+	tristate "hash:net,net set support"
+	depends on IP_SET
+	help
+	  This option adds the hash:net,net  set type support, by which
+	  one can store IPv4/IPv6 network address/prefix pairs in a set.
+
+	  To compile it as a module, choose M here.  If unsure, say N.
+
 config IP_SET_HASH_NETPORT
 	tristate "hash:net,port set support"
 	depends on IP_SET
diff --git a/net/netfilter/ipset/Makefile b/net/netfilter/ipset/Makefile
index 6e965ecd5444..43eef7a19e3c 100644
--- a/net/netfilter/ipset/Makefile
+++ b/net/netfilter/ipset/Makefile
@@ -20,6 +20,7 @@ obj-$(CONFIG_IP_SET_HASH_IPPORTNET) += ip_set_hash_ipportnet.o
 obj-$(CONFIG_IP_SET_HASH_NET) += ip_set_hash_net.o
 obj-$(CONFIG_IP_SET_HASH_NETPORT) += ip_set_hash_netport.o
 obj-$(CONFIG_IP_SET_HASH_NETIFACE) += ip_set_hash_netiface.o
+obj-$(CONFIG_IP_SET_HASH_NETNET) += ip_set_hash_netnet.o
 
 # list types
 obj-$(CONFIG_IP_SET_LIST_SET) += ip_set_list_set.o
diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index 3c26e5b946f5..6bd2eef4f5d0 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -142,11 +142,16 @@ hbucket_elem_add(struct hbucket *n, u8 ahash_max, size_t dsize)
 }
 
 #ifdef IP_SET_HASH_WITH_NETS
+#if IPSET_NET_COUNT > 1
+#define __CIDR(cidr, i)		(cidr[i])
+#else
+#define __CIDR(cidr, i)		(cidr)
+#endif
 #ifdef IP_SET_HASH_WITH_NETS_PACKED
 /* When cidr is packed with nomatch, cidr - 1 is stored in the entry */
-#define CIDR(cidr)		(cidr + 1)
+#define CIDR(cidr, i)		(__CIDR(cidr, i) + 1)
 #else
-#define CIDR(cidr)		(cidr)
+#define CIDR(cidr, i)		(__CIDR(cidr, i))
 #endif
 
 #define SET_HOST_MASK(family)	(family == AF_INET ? 32 : 128)
@@ -210,6 +215,7 @@ hbucket_elem_add(struct hbucket *n, u8 ahash_max, size_t dsize)
 #define mtype_do_data_match(d)	1
 #endif
 #define mtype_data_set_flags	IPSET_TOKEN(MTYPE, _data_set_flags)
+#define mtype_data_reset_elem	IPSET_TOKEN(MTYPE, _data_reset_elem)
 #define mtype_data_reset_flags	IPSET_TOKEN(MTYPE, _data_reset_flags)
 #define mtype_data_netmask	IPSET_TOKEN(MTYPE, _data_netmask)
 #define mtype_data_list		IPSET_TOKEN(MTYPE, _data_list)
@@ -461,6 +467,9 @@ mtype_expire(struct ip_set *set, struct htype *h, u8 nets_length, size_t dsize)
 	struct mtype_elem *data;
 	u32 i;
 	int j;
+#ifdef IP_SET_HASH_WITH_NETS
+	u8 k;
+#endif
 
 	rcu_read_lock_bh();
 	t = rcu_dereference_bh(h->table);
@@ -471,8 +480,9 @@ mtype_expire(struct ip_set *set, struct htype *h, u8 nets_length, size_t dsize)
 			if (ip_set_timeout_expired(ext_timeout(data, set))) {
 				pr_debug("expired %u/%u\n", i, j);
 #ifdef IP_SET_HASH_WITH_NETS
-				mtype_del_cidr(h, CIDR(data->cidr),
-					       nets_length, 0);
+				for (k = 0; k < IPSET_NET_COUNT; k++)
+					mtype_del_cidr(h, CIDR(data->cidr, k),
+						       nets_length, k);
 #endif
 				ip_set_ext_destroy(set, data);
 				if (j != n->pos - 1)
@@ -658,8 +668,12 @@ reuse_slot:
 		/* Fill out reused slot */
 		data = ahash_data(n, j, set->dsize);
 #ifdef IP_SET_HASH_WITH_NETS
-		mtype_del_cidr(h, CIDR(data->cidr), NLEN(set->family), 0);
-		mtype_add_cidr(h, CIDR(d->cidr), NLEN(set->family), 0);
+		for (i = 0; i < IPSET_NET_COUNT; i++) {
+			mtype_del_cidr(h, CIDR(data->cidr, i),
+				       NLEN(set->family), i);
+			mtype_add_cidr(h, CIDR(d->cidr, i),
+				       NLEN(set->family), i);
+		}
 #endif
 		ip_set_ext_destroy(set, data);
 	} else {
@@ -673,7 +687,9 @@ reuse_slot:
 		}
 		data = ahash_data(n, n->pos++, set->dsize);
 #ifdef IP_SET_HASH_WITH_NETS
-		mtype_add_cidr(h, CIDR(d->cidr), NLEN(set->family), 0);
+		for (i = 0; i < IPSET_NET_COUNT; i++)
+			mtype_add_cidr(h, CIDR(d->cidr, i), NLEN(set->family),
+				       i);
 #endif
 		h->elements++;
 	}
@@ -704,6 +720,9 @@ mtype_del(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 	struct mtype_elem *data;
 	struct hbucket *n;
 	int i, ret = -IPSET_ERR_EXIST;
+#ifdef IP_SET_HASH_WITH_NETS
+	u8 j;
+#endif
 	u32 key, multi = 0;
 
 	rcu_read_lock_bh();
@@ -725,7 +744,9 @@ mtype_del(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 		n->pos--;
 		h->elements--;
 #ifdef IP_SET_HASH_WITH_NETS
-		mtype_del_cidr(h, CIDR(d->cidr), NLEN(set->family), 0);
+		for (j = 0; j < IPSET_NET_COUNT; j++)
+			mtype_del_cidr(h, CIDR(d->cidr, j), NLEN(set->family),
+				       j);
 #endif
 		ip_set_ext_destroy(set, data);
 		if (n->pos + AHASH_INIT_SIZE < n->size) {
@@ -772,13 +793,26 @@ mtype_test_cidrs(struct ip_set *set, struct mtype_elem *d,
 	struct htable *t = rcu_dereference_bh(h->table);
 	struct hbucket *n;
 	struct mtype_elem *data;
+#if IPSET_NET_COUNT == 2
+	struct mtype_elem orig = *d;
+	int i, j = 0, k;
+#else
 	int i, j = 0;
+#endif
 	u32 key, multi = 0;
 	u8 nets_length = NLEN(set->family);
 
 	pr_debug("test by nets\n");
 	for (; j < nets_length && h->nets[j].nets[0] && !multi; j++) {
+#if IPSET_NET_COUNT == 2
+		mtype_data_reset_elem(d, &orig);
+		mtype_data_netmask(d, h->nets[j].cidr[0], false);
+		for (k = 0; k < nets_length && h->nets[k].nets[1] && !multi;
+		     k++) {
+			mtype_data_netmask(d, h->nets[k].cidr[1], true);
+#else
 		mtype_data_netmask(d, h->nets[j].cidr[0]);
+#endif
 		key = HKEY(d, h->initval, t->htable_bits);
 		n = hbucket(t, key);
 		for (i = 0; i < n->pos; i++) {
@@ -798,6 +832,9 @@ mtype_test_cidrs(struct ip_set *set, struct mtype_elem *d,
 				return mtype_data_match(data, ext,
 							mext, set, flags);
 		}
+#if IPSET_NET_COUNT == 2
+		}
+#endif
 	}
 	return 0;
 }
@@ -821,7 +858,10 @@ mtype_test(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 #ifdef IP_SET_HASH_WITH_NETS
 	/* If we test an IP address and not a network address,
 	 * try all possible network sizes */
-	if (CIDR(d->cidr) == SET_HOST_MASK(set->family)) {
+	for (i = 0; i < IPSET_NET_COUNT; i++)
+		if (CIDR(d->cidr, i) != SET_HOST_MASK(set->family))
+			break;
+	if (i == IPSET_NET_COUNT) {
 		ret = mtype_test_cidrs(set, d, ext, mext, flags);
 		goto out;
 	}
diff --git a/net/netfilter/ipset/ip_set_hash_netnet.c b/net/netfilter/ipset/ip_set_hash_netnet.c
new file mode 100644
index 000000000000..771ce2b565a6
--- /dev/null
+++ b/net/netfilter/ipset/ip_set_hash_netnet.c
@@ -0,0 +1,482 @@
+/* Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
+ * Copyright (C) 2013 Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/* Kernel module implementing an IP set type: the hash:net type */
+
+#include <linux/jhash.h>
+#include <linux/module.h>
+#include <linux/ip.h>
+#include <linux/skbuff.h>
+#include <linux/errno.h>
+#include <linux/random.h>
+#include <net/ip.h>
+#include <net/ipv6.h>
+#include <net/netlink.h>
+
+#include <linux/netfilter.h>
+#include <linux/netfilter/ipset/pfxlen.h>
+#include <linux/netfilter/ipset/ip_set.h>
+#include <linux/netfilter/ipset/ip_set_hash.h>
+
+#define IPSET_TYPE_REV_MIN	0
+#define IPSET_TYPE_REV_MAX	0
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>");
+IP_SET_MODULE_DESC("hash:net,net", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
+MODULE_ALIAS("ip_set_hash:net,net");
+
+/* Type specific function prefix */
+#define HTYPE		hash_netnet
+#define IP_SET_HASH_WITH_NETS
+#define IPSET_NET_COUNT 2
+
+/* IPv4 variants */
+
+/* Member elements  */
+struct hash_netnet4_elem {
+	union {
+		__be32 ip[2];
+		__be64 ipcmp;
+	};
+	u8 nomatch;
+	union {
+		u8 cidr[2];
+		u16 ccmp;
+	};
+};
+
+/* Common functions */
+
+static inline bool
+hash_netnet4_data_equal(const struct hash_netnet4_elem *ip1,
+		     const struct hash_netnet4_elem *ip2,
+		     u32 *multi)
+{
+	return ip1->ipcmp == ip2->ipcmp &&
+	       ip2->ccmp == ip2->ccmp;
+}
+
+static inline int
+hash_netnet4_do_data_match(const struct hash_netnet4_elem *elem)
+{
+	return elem->nomatch ? -ENOTEMPTY : 1;
+}
+
+static inline void
+hash_netnet4_data_set_flags(struct hash_netnet4_elem *elem, u32 flags)
+{
+	elem->nomatch = (flags >> 16) & IPSET_FLAG_NOMATCH;
+}
+
+static inline void
+hash_netnet4_data_reset_flags(struct hash_netnet4_elem *elem, u8 *flags)
+{
+	swap(*flags, elem->nomatch);
+}
+
+static inline void
+hash_netnet4_data_reset_elem(struct hash_netnet4_elem *elem,
+			  struct hash_netnet4_elem *orig)
+{
+	elem->ip[1] = orig->ip[1];
+}
+
+static inline void
+hash_netnet4_data_netmask(struct hash_netnet4_elem *elem, u8 cidr, bool inner)
+{
+	if (inner) {
+		elem->ip[1] &= ip_set_netmask(cidr);
+		elem->cidr[1] = cidr;
+	} else {
+		elem->ip[0] &= ip_set_netmask(cidr);
+		elem->cidr[0] = cidr;
+	}
+}
+
+static bool
+hash_netnet4_data_list(struct sk_buff *skb,
+		    const struct hash_netnet4_elem *data)
+{
+	u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
+
+	if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip[0]) ||
+	    nla_put_ipaddr4(skb, IPSET_ATTR_IP2, data->ip[1]) ||
+	    nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) ||
+	    nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) ||
+	    (flags &&
+	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return 1;
+}
+
+static inline void
+hash_netnet4_data_next(struct hash_netnet4_elem *next,
+		    const struct hash_netnet4_elem *d)
+{
+	next->ipcmp = d->ipcmp;
+}
+
+#define MTYPE		hash_netnet4
+#define PF		4
+#define HOST_MASK	32
+#include "ip_set_hash_gen.h"
+
+static int
+hash_netnet4_kadt(struct ip_set *set, const struct sk_buff *skb,
+	       const struct xt_action_param *par,
+	       enum ipset_adt adt, struct ip_set_adt_opt *opt)
+{
+	const struct hash_netnet *h = set->data;
+	ipset_adtfn adtfn = set->variant->adt[adt];
+	struct hash_netnet4_elem e = {
+		.cidr[0] = h->nets[0].cidr[0] ? h->nets[0].cidr[0] : HOST_MASK,
+		.cidr[1] = h->nets[0].cidr[1] ? h->nets[0].cidr[1] : HOST_MASK,
+	};
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
+
+	if (adt == IPSET_TEST)
+		e.ccmp = (HOST_MASK << (sizeof(e.cidr[0]) * 8)) | HOST_MASK;
+
+	ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0]);
+	ip4addrptr(skb, opt->flags & IPSET_DIM_TWO_SRC, &e.ip[1]);
+	e.ip[0] &= ip_set_netmask(e.cidr[0]);
+	e.ip[1] &= ip_set_netmask(e.cidr[1]);
+
+	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
+}
+
+static int
+hash_netnet4_uadt(struct ip_set *set, struct nlattr *tb[],
+	       enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
+{
+	const struct hash_netnet *h = set->data;
+	ipset_adtfn adtfn = set->variant->adt[adt];
+	struct hash_netnet4_elem e = { .cidr[0] = HOST_MASK,
+				       .cidr[1] = HOST_MASK };
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
+	u32 ip = 0, ip_to = 0, last;
+	u32 ip2 = 0, ip2_from = 0, ip2_to = 0, last2;
+	u8 cidr, cidr2;
+	int ret;
+
+	if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES)))
+		return -IPSET_ERR_PROTOCOL;
+
+	if (tb[IPSET_ATTR_LINENO])
+		*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
+
+	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip) ||
+	      ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from) ||
+	      ip_set_get_extensions(set, tb, &ext);
+	if (ret)
+		return ret;
+
+	if (tb[IPSET_ATTR_CIDR]) {
+		cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
+		if (!cidr || cidr > HOST_MASK)
+			return -IPSET_ERR_INVALID_CIDR;
+		e.cidr[0] = cidr;
+	}
+
+	if (tb[IPSET_ATTR_CIDR2]) {
+		cidr2 = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
+		if (!cidr2 || cidr2 > HOST_MASK)
+			return -IPSET_ERR_INVALID_CIDR;
+		e.cidr[1] = cidr2;
+	}
+
+	if (tb[IPSET_ATTR_CADT_FLAGS]) {
+		u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
+		if (cadt_flags & IPSET_FLAG_NOMATCH)
+			flags |= (IPSET_FLAG_NOMATCH << 16);
+	}
+
+	if (adt == IPSET_TEST || !(tb[IPSET_ATTR_IP_TO] &&
+				   tb[IPSET_ATTR_IP2_TO])) {
+		e.ip[0] = htonl(ip & ip_set_hostmask(e.cidr[0]));
+		e.ip[1] = htonl(ip2_from & ip_set_hostmask(e.cidr[1]));
+		ret = adtfn(set, &e, &ext, &ext, flags);
+		return ip_set_enomatch(ret, flags, adt, set) ? -ret :
+		       ip_set_eexist(ret, flags) ? 0 : ret;
+	}
+
+	ip_to = ip;
+	if (tb[IPSET_ATTR_IP_TO]) {
+		ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
+		if (ret)
+			return ret;
+		if (ip_to < ip)
+			swap(ip, ip_to);
+		if (ip + UINT_MAX == ip_to)
+			return -IPSET_ERR_HASH_RANGE;
+	}
+
+	ip2_to = ip2_from;
+	if (tb[IPSET_ATTR_IP2_TO]) {
+		ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to);
+		if (ret)
+			return ret;
+		if (ip2_to < ip2_from)
+			swap(ip2_from, ip2_to);
+		if (ip2_from + UINT_MAX == ip2_to)
+			return -IPSET_ERR_HASH_RANGE;
+
+	}
+
+	if (retried)
+		ip = ntohl(h->next.ip[0]);
+
+	while (!after(ip, ip_to)) {
+		e.ip[0] = htonl(ip);
+		last = ip_set_range_to_cidr(ip, ip_to, &cidr);
+		e.cidr[0] = cidr;
+		ip2 = (retried &&
+		       ip == ntohl(h->next.ip[0])) ? ntohl(h->next.ip[1])
+						   : ip2_from;
+		while (!after(ip2, ip2_to)) {
+			e.ip[1] = htonl(ip2);
+			last2 = ip_set_range_to_cidr(ip2, ip2_to, &cidr2);
+			e.cidr[1] = cidr2;
+			ret = adtfn(set, &e, &ext, &ext, flags);
+			if (ret && !ip_set_eexist(ret, flags))
+				return ret;
+			else
+				ret = 0;
+			ip2 = last2 + 1;
+		}
+		ip = last + 1;
+	}
+	return ret;
+}
+
+/* IPv6 variants */
+
+struct hash_netnet6_elem {
+	union nf_inet_addr ip[2];
+	u8 nomatch;
+	union {
+		u8 cidr[2];
+		u16 ccmp;
+	};
+};
+
+/* Common functions */
+
+static inline bool
+hash_netnet6_data_equal(const struct hash_netnet6_elem *ip1,
+		     const struct hash_netnet6_elem *ip2,
+		     u32 *multi)
+{
+	return ipv6_addr_equal(&ip1->ip[0].in6, &ip2->ip[0].in6) &&
+	       ipv6_addr_equal(&ip1->ip[1].in6, &ip2->ip[1].in6) &&
+	       ip1->ccmp == ip2->ccmp;
+}
+
+static inline int
+hash_netnet6_do_data_match(const struct hash_netnet6_elem *elem)
+{
+	return elem->nomatch ? -ENOTEMPTY : 1;
+}
+
+static inline void
+hash_netnet6_data_set_flags(struct hash_netnet6_elem *elem, u32 flags)
+{
+	elem->nomatch = (flags >> 16) & IPSET_FLAG_NOMATCH;
+}
+
+static inline void
+hash_netnet6_data_reset_flags(struct hash_netnet6_elem *elem, u8 *flags)
+{
+	swap(*flags, elem->nomatch);
+}
+
+static inline void
+hash_netnet6_data_reset_elem(struct hash_netnet6_elem *elem,
+			  struct hash_netnet6_elem *orig)
+{
+	elem->ip[1] = orig->ip[1];
+}
+
+static inline void
+hash_netnet6_data_netmask(struct hash_netnet6_elem *elem, u8 cidr, bool inner)
+{
+	if (inner) {
+		ip6_netmask(&elem->ip[1], cidr);
+		elem->cidr[1] = cidr;
+	} else {
+		ip6_netmask(&elem->ip[0], cidr);
+		elem->cidr[0] = cidr;
+	}
+}
+
+static bool
+hash_netnet6_data_list(struct sk_buff *skb,
+		    const struct hash_netnet6_elem *data)
+{
+	u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
+
+	if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip[0].in6) ||
+	    nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip[1].in6) ||
+	    nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) ||
+	    nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) ||
+	    (flags &&
+	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return 1;
+}
+
+static inline void
+hash_netnet6_data_next(struct hash_netnet4_elem *next,
+		    const struct hash_netnet6_elem *d)
+{
+}
+
+#undef MTYPE
+#undef PF
+#undef HOST_MASK
+
+#define MTYPE		hash_netnet6
+#define PF		6
+#define HOST_MASK	128
+#define IP_SET_EMIT_CREATE
+#include "ip_set_hash_gen.h"
+
+static int
+hash_netnet6_kadt(struct ip_set *set, const struct sk_buff *skb,
+	       const struct xt_action_param *par,
+	       enum ipset_adt adt, struct ip_set_adt_opt *opt)
+{
+	const struct hash_netnet *h = set->data;
+	ipset_adtfn adtfn = set->variant->adt[adt];
+	struct hash_netnet6_elem e = {
+		.cidr[0] = h->nets[0].cidr[0] ? h->nets[0].cidr[0] : HOST_MASK,
+		.cidr[1] = h->nets[0].cidr[1] ? h->nets[0].cidr[1] : HOST_MASK
+	};
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
+
+	if (adt == IPSET_TEST)
+		e.ccmp = (HOST_MASK << (sizeof(u8)*8)) | HOST_MASK;
+
+	ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0].in6);
+	ip6addrptr(skb, opt->flags & IPSET_DIM_TWO_SRC, &e.ip[1].in6);
+	ip6_netmask(&e.ip[0], e.cidr[0]);
+	ip6_netmask(&e.ip[1], e.cidr[1]);
+
+	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
+}
+
+static int
+hash_netnet6_uadt(struct ip_set *set, struct nlattr *tb[],
+	       enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
+{
+	ipset_adtfn adtfn = set->variant->adt[adt];
+	struct hash_netnet6_elem e = { .cidr[0] = HOST_MASK,
+				       .cidr[1] = HOST_MASK };
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
+	int ret;
+
+	if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES)))
+		return -IPSET_ERR_PROTOCOL;
+	if (unlikely(tb[IPSET_ATTR_IP_TO] || tb[IPSET_ATTR_IP2_TO]))
+		return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
+
+	if (tb[IPSET_ATTR_LINENO])
+		*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
+
+	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip[0]) ||
+	      ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip[1]) ||
+	      ip_set_get_extensions(set, tb, &ext);
+	if (ret)
+		return ret;
+
+	if (tb[IPSET_ATTR_CIDR])
+		e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]);
+
+	if (tb[IPSET_ATTR_CIDR2])
+		e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
+
+	if (!e.cidr[0] || e.cidr[0] > HOST_MASK || !e.cidr[1] ||
+	    e.cidr[1] > HOST_MASK)
+		return -IPSET_ERR_INVALID_CIDR;
+
+	ip6_netmask(&e.ip[0], e.cidr[0]);
+	ip6_netmask(&e.ip[1], e.cidr[1]);
+
+	if (tb[IPSET_ATTR_CADT_FLAGS]) {
+		u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
+		if (cadt_flags & IPSET_FLAG_NOMATCH)
+			flags |= (IPSET_FLAG_NOMATCH << 16);
+	}
+
+	ret = adtfn(set, &e, &ext, &ext, flags);
+
+	return ip_set_enomatch(ret, flags, adt, set) ? -ret :
+	       ip_set_eexist(ret, flags) ? 0 : ret;
+}
+
+static struct ip_set_type hash_netnet_type __read_mostly = {
+	.name		= "hash:net,net",
+	.protocol	= IPSET_PROTOCOL,
+	.features	= IPSET_TYPE_IP | IPSET_TYPE_IP2 | IPSET_TYPE_NOMATCH,
+	.dimension	= IPSET_DIM_TWO,
+	.family		= NFPROTO_UNSPEC,
+	.revision_min	= IPSET_TYPE_REV_MIN,
+	.revision_max	= IPSET_TYPE_REV_MAX,
+	.create		= hash_netnet_create,
+	.create_policy	= {
+		[IPSET_ATTR_HASHSIZE]	= { .type = NLA_U32 },
+		[IPSET_ATTR_MAXELEM]	= { .type = NLA_U32 },
+		[IPSET_ATTR_PROBES]	= { .type = NLA_U8 },
+		[IPSET_ATTR_RESIZE]	= { .type = NLA_U8  },
+		[IPSET_ATTR_TIMEOUT]	= { .type = NLA_U32 },
+		[IPSET_ATTR_CADT_FLAGS]	= { .type = NLA_U32 },
+	},
+	.adt_policy	= {
+		[IPSET_ATTR_IP]		= { .type = NLA_NESTED },
+		[IPSET_ATTR_IP_TO]	= { .type = NLA_NESTED },
+		[IPSET_ATTR_IP2]	= { .type = NLA_NESTED },
+		[IPSET_ATTR_IP2_TO]	= { .type = NLA_NESTED },
+		[IPSET_ATTR_CIDR]	= { .type = NLA_U8 },
+		[IPSET_ATTR_CIDR2]	= { .type = NLA_U8 },
+		[IPSET_ATTR_TIMEOUT]	= { .type = NLA_U32 },
+		[IPSET_ATTR_CADT_FLAGS]	= { .type = NLA_U32 },
+		[IPSET_ATTR_BYTES]	= { .type = NLA_U64 },
+		[IPSET_ATTR_PACKETS]	= { .type = NLA_U64 },
+	},
+	.me		= THIS_MODULE,
+};
+
+static int __init
+hash_netnet_init(void)
+{
+	return ip_set_type_register(&hash_netnet_type);
+}
+
+static void __exit
+hash_netnet_fini(void)
+{
+	ip_set_type_unregister(&hash_netnet_type);
+}
+
+module_init(hash_netnet_init);
+module_exit(hash_netnet_fini);
-- 
cgit 


From 68b63f08d22f23161c43cd2417104aa213ff877f Mon Sep 17 00:00:00 2001
From: Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>
Date: Sun, 22 Sep 2013 20:56:30 +0200
Subject: netfilter: ipset: Support comments for ipset entries in the core.

This adds the core support for having comments on ipset entries.

The comments are stored as standard null-terminated strings in
dynamically allocated memory after being passed to the kernel. As a
result of this, code has been added to the generic destroy function to
iterate all extensions and call that extension's destroy task if the set
has that extension activated, and if such a task is defined.

Signed-off-by: Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 include/linux/netfilter/ipset/ip_set.h         | 51 +++++++++++++++++++----
 include/linux/netfilter/ipset/ip_set_comment.h | 57 ++++++++++++++++++++++++++
 include/uapi/linux/netfilter/ipset/ip_set.h    |  8 +++-
 net/netfilter/ipset/ip_set_core.c              | 14 +++++++
 4 files changed, 121 insertions(+), 9 deletions(-)
 create mode 100644 include/linux/netfilter/ipset/ip_set_comment.h

diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h
index 6372ee224fe8..407f84df6a47 100644
--- a/include/linux/netfilter/ipset/ip_set.h
+++ b/include/linux/netfilter/ipset/ip_set.h
@@ -53,6 +53,8 @@ enum ip_set_extension {
 	IPSET_EXT_TIMEOUT = (1 << IPSET_EXT_BIT_TIMEOUT),
 	IPSET_EXT_BIT_COUNTER = 1,
 	IPSET_EXT_COUNTER = (1 << IPSET_EXT_BIT_COUNTER),
+	IPSET_EXT_BIT_COMMENT = 2,
+	IPSET_EXT_COMMENT = (1 << IPSET_EXT_BIT_COMMENT),
 	/* Mark set with an extension which needs to call destroy */
 	IPSET_EXT_BIT_DESTROY = 7,
 	IPSET_EXT_DESTROY = (1 << IPSET_EXT_BIT_DESTROY),
@@ -60,11 +62,13 @@ enum ip_set_extension {
 
 #define SET_WITH_TIMEOUT(s)	((s)->extensions & IPSET_EXT_TIMEOUT)
 #define SET_WITH_COUNTER(s)	((s)->extensions & IPSET_EXT_COUNTER)
+#define SET_WITH_COMMENT(s)	((s)->extensions & IPSET_EXT_COMMENT)
 
 /* Extension id, in size order */
 enum ip_set_ext_id {
 	IPSET_EXT_ID_COUNTER = 0,
 	IPSET_EXT_ID_TIMEOUT,
+	IPSET_EXT_ID_COMMENT,
 	IPSET_EXT_ID_MAX,
 };
 
@@ -85,6 +89,7 @@ struct ip_set_ext {
 	u64 packets;
 	u64 bytes;
 	u32 timeout;
+	char *comment;
 };
 
 struct ip_set_counter {
@@ -92,20 +97,19 @@ struct ip_set_counter {
 	atomic64_t packets;
 };
 
-struct ip_set;
+struct ip_set_comment {
+	char *str;
+};
 
-static inline void
-ip_set_ext_destroy(struct ip_set *set, void *data)
-{
-	/* Check that the extension is enabled for the set and
-	 * call it's destroy function for its extension part in data.
-	 */
-}
+struct ip_set;
 
 #define ext_timeout(e, s)	\
 (unsigned long *)(((void *)(e)) + (s)->offset[IPSET_EXT_ID_TIMEOUT])
 #define ext_counter(e, s)	\
 (struct ip_set_counter *)(((void *)(e)) + (s)->offset[IPSET_EXT_ID_COUNTER])
+#define ext_comment(e, s)	\
+(struct ip_set_comment *)(((void *)(e)) + (s)->offset[IPSET_EXT_ID_COMMENT])
+
 
 typedef int (*ipset_adtfn)(struct ip_set *set, void *value,
 			   const struct ip_set_ext *ext,
@@ -222,6 +226,36 @@ struct ip_set {
 	void *data;
 };
 
+static inline void
+ip_set_ext_destroy(struct ip_set *set, void *data)
+{
+	/* Check that the extension is enabled for the set and
+	 * call it's destroy function for its extension part in data.
+	 */
+	if (SET_WITH_COMMENT(set))
+		ip_set_extensions[IPSET_EXT_ID_COMMENT].destroy(
+			ext_comment(data, set));
+}
+
+static inline int
+ip_set_put_flags(struct sk_buff *skb, struct ip_set *set)
+{
+	u32 cadt_flags = 0;
+
+	if (SET_WITH_TIMEOUT(set))
+		if (unlikely(nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
+					   htonl(set->timeout))))
+			return -EMSGSIZE;
+	if (SET_WITH_COUNTER(set))
+		cadt_flags |= IPSET_FLAG_WITH_COUNTERS;
+	if (SET_WITH_COMMENT(set))
+		cadt_flags |= IPSET_FLAG_WITH_COMMENT;
+
+	if (!cadt_flags)
+		return 0;
+	return nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(cadt_flags));
+}
+
 static inline void
 ip_set_add_bytes(u64 bytes, struct ip_set_counter *counter)
 {
@@ -425,6 +459,7 @@ bitmap_bytes(u32 a, u32 b)
 }
 
 #include <linux/netfilter/ipset/ip_set_timeout.h>
+#include <linux/netfilter/ipset/ip_set_comment.h>
 
 #define IP_SET_INIT_KEXT(skb, opt, set)			\
 	{ .bytes = (skb)->len, .packets = 1,		\
diff --git a/include/linux/netfilter/ipset/ip_set_comment.h b/include/linux/netfilter/ipset/ip_set_comment.h
new file mode 100644
index 000000000000..21217ea008d7
--- /dev/null
+++ b/include/linux/netfilter/ipset/ip_set_comment.h
@@ -0,0 +1,57 @@
+#ifndef _IP_SET_COMMENT_H
+#define _IP_SET_COMMENT_H
+
+/* Copyright (C) 2013 Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifdef __KERNEL__
+
+static inline char*
+ip_set_comment_uget(struct nlattr *tb)
+{
+	return nla_data(tb);
+}
+
+static inline void
+ip_set_init_comment(struct ip_set_comment *comment,
+		    const struct ip_set_ext *ext)
+{
+	size_t len = ext->comment ? strlen(ext->comment) : 0;
+
+	if (unlikely(comment->str)) {
+		kfree(comment->str);
+		comment->str = NULL;
+	}
+	if (!len)
+		return;
+	if (unlikely(len > IPSET_MAX_COMMENT_SIZE))
+		len = IPSET_MAX_COMMENT_SIZE;
+	comment->str = kzalloc(len + 1, GFP_ATOMIC);
+	if (unlikely(!comment->str))
+		return;
+	strlcpy(comment->str, ext->comment, len + 1);
+}
+
+static inline int
+ip_set_put_comment(struct sk_buff *skb, struct ip_set_comment *comment)
+{
+	if (!comment->str)
+		return 0;
+	return nla_put_string(skb, IPSET_ATTR_COMMENT, comment->str);
+}
+
+static inline void
+ip_set_comment_free(struct ip_set_comment *comment)
+{
+	if (unlikely(!comment->str))
+		return;
+	kfree(comment->str);
+	comment->str = NULL;
+}
+
+#endif
+#endif
diff --git a/include/uapi/linux/netfilter/ipset/ip_set.h b/include/uapi/linux/netfilter/ipset/ip_set.h
index 2b61ac44dcc1..25d3b2f79c02 100644
--- a/include/uapi/linux/netfilter/ipset/ip_set.h
+++ b/include/uapi/linux/netfilter/ipset/ip_set.h
@@ -10,12 +10,14 @@
 #ifndef _UAPI_IP_SET_H
 #define _UAPI_IP_SET_H
 
-
 #include <linux/types.h>
 
 /* The protocol version */
 #define IPSET_PROTOCOL		6
 
+/* The maximum permissible comment length we will accept over netlink */
+#define IPSET_MAX_COMMENT_SIZE	255
+
 /* The max length of strings including NUL: set and type identifiers */
 #define IPSET_MAXNAMELEN	32
 
@@ -110,6 +112,7 @@ enum {
 	IPSET_ATTR_IFACE,
 	IPSET_ATTR_BYTES,
 	IPSET_ATTR_PACKETS,
+	IPSET_ATTR_COMMENT,
 	__IPSET_ATTR_ADT_MAX,
 };
 #define IPSET_ATTR_ADT_MAX	(__IPSET_ATTR_ADT_MAX - 1)
@@ -140,6 +143,7 @@ enum ipset_errno {
 	IPSET_ERR_IPADDR_IPV4,
 	IPSET_ERR_IPADDR_IPV6,
 	IPSET_ERR_COUNTER,
+	IPSET_ERR_COMMENT,
 
 	/* Type specific error codes */
 	IPSET_ERR_TYPE_SPECIFIC = 4352,
@@ -176,6 +180,8 @@ enum ipset_cadt_flags {
 	IPSET_FLAG_NOMATCH	= (1 << IPSET_FLAG_BIT_NOMATCH),
 	IPSET_FLAG_BIT_WITH_COUNTERS = 3,
 	IPSET_FLAG_WITH_COUNTERS = (1 << IPSET_FLAG_BIT_WITH_COUNTERS),
+	IPSET_FLAG_BIT_WITH_COMMENT = 4,
+	IPSET_FLAG_WITH_COMMENT = (1 << IPSET_FLAG_BIT_WITH_COMMENT),
 	IPSET_FLAG_CADT_MAX	= 15,
 };
 
diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
index f35afed3814f..3bf9a3d29dff 100644
--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -315,6 +315,7 @@ ip_set_get_ipaddr6(struct nlattr *nla, union nf_inet_addr *ipaddr)
 }
 EXPORT_SYMBOL_GPL(ip_set_get_ipaddr6);
 
+typedef void (*destroyer)(void *);
 /* ipset data extension types, in size order */
 
 const struct ip_set_ext_type ip_set_extensions[] = {
@@ -329,6 +330,13 @@ const struct ip_set_ext_type ip_set_extensions[] = {
 		.len	= sizeof(unsigned long),
 		.align	= __alignof__(unsigned long),
 	},
+	[IPSET_EXT_ID_COMMENT] = {
+		.type	 = IPSET_EXT_COMMENT | IPSET_EXT_DESTROY,
+		.flag	 = IPSET_FLAG_WITH_COMMENT,
+		.len	 = sizeof(struct ip_set_comment),
+		.align	 = __alignof__(struct ip_set_comment),
+		.destroy = (destroyer) ip_set_comment_free,
+	},
 };
 EXPORT_SYMBOL_GPL(ip_set_extensions);
 
@@ -380,6 +388,12 @@ ip_set_get_extensions(struct ip_set *set, struct nlattr *tb[],
 			ext->packets = be64_to_cpu(nla_get_be64(
 						   tb[IPSET_ATTR_PACKETS]));
 	}
+	if (tb[IPSET_ATTR_COMMENT]) {
+		if (!(set->extensions & IPSET_EXT_COMMENT))
+			return -IPSET_ERR_COMMENT;
+		ext->comment = ip_set_comment_uget(tb[IPSET_ATTR_COMMENT]);
+	}
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(ip_set_get_extensions);
-- 
cgit 


From b90cb8ba19dac9b98add5e64adb583fccbf63f94 Mon Sep 17 00:00:00 2001
From: Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>
Date: Sun, 22 Sep 2013 20:56:32 +0200
Subject: netfilter: ipset: Support comments in bitmap-type ipsets.

This provides kernel support for creating bitmap ipsets with comment
support.

As is the case for hashes, this incurs a penalty when flushing or
destroying the entire ipset as the entries must first be walked in order
to free the comment strings. This penalty is of course far less than the
cost of listing an ipset to userspace. Any set created without support
for comments will be flushed/destroyed as before.

Signed-off-by: Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 net/netfilter/ipset/ip_set_bitmap_gen.h   | 14 ++++++++------
 net/netfilter/ipset/ip_set_bitmap_ip.c    |  4 +++-
 net/netfilter/ipset/ip_set_bitmap_ipmac.c |  4 +++-
 net/netfilter/ipset/ip_set_bitmap_port.c  |  4 +++-
 4 files changed, 17 insertions(+), 9 deletions(-)

diff --git a/net/netfilter/ipset/ip_set_bitmap_gen.h b/net/netfilter/ipset/ip_set_bitmap_gen.h
index 4515fe8b83dd..6167fc9d0efe 100644
--- a/net/netfilter/ipset/ip_set_bitmap_gen.h
+++ b/net/netfilter/ipset/ip_set_bitmap_gen.h
@@ -101,12 +101,9 @@ mtype_head(struct ip_set *set, struct sk_buff *skb)
 	    nla_put_net32(skb, IPSET_ATTR_MEMSIZE,
 			  htonl(sizeof(*map) +
 				map->memsize +
-				set->dsize * map->elements)) ||
-	    (SET_WITH_TIMEOUT(set) &&
-	     nla_put_net32(skb, IPSET_ATTR_TIMEOUT, htonl(set->timeout))) ||
-	    (SET_WITH_COUNTER(set) &&
-	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS,
-			   htonl(IPSET_FLAG_WITH_COUNTERS))))
+				set->dsize * map->elements)))
+		goto nla_put_failure;
+	if (unlikely(ip_set_put_flags(skb, set)))
 		goto nla_put_failure;
 	ipset_nest_end(skb, nested);
 
@@ -162,6 +159,8 @@ mtype_add(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 
 	if (SET_WITH_COUNTER(set))
 		ip_set_init_counter(ext_counter(x, set), ext);
+	if (SET_WITH_COMMENT(set))
+		ip_set_init_comment(ext_comment(x, set), ext);
 	return 0;
 }
 
@@ -233,6 +232,9 @@ mtype_list(const struct ip_set *set,
 		if (SET_WITH_COUNTER(set) &&
 		    ip_set_put_counter(skb, ext_counter(x, set)))
 			goto nla_put_failure;
+		if (SET_WITH_COMMENT(set) &&
+		    ip_set_put_comment(skb, ext_comment(x, set)))
+			goto nla_put_failure;
 		ipset_nest_end(skb, nested);
 	}
 	ipset_nest_end(skb, adt);
diff --git a/net/netfilter/ipset/ip_set_bitmap_ip.c b/net/netfilter/ipset/ip_set_bitmap_ip.c
index 94d985457c51..faac124e2645 100644
--- a/net/netfilter/ipset/ip_set_bitmap_ip.c
+++ b/net/netfilter/ipset/ip_set_bitmap_ip.c
@@ -26,7 +26,8 @@
 #include <linux/netfilter/ipset/ip_set_bitmap.h>
 
 #define IPSET_TYPE_REV_MIN	0
-#define IPSET_TYPE_REV_MAX	1	/* Counter support added */
+/*				1	   Counter support added */
+#define IPSET_TYPE_REV_MAX	2	/* Comment support added */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
@@ -354,6 +355,7 @@ static struct ip_set_type bitmap_ip_type __read_mostly = {
 		[IPSET_ATTR_LINENO]	= { .type = NLA_U32 },
 		[IPSET_ATTR_BYTES]	= { .type = NLA_U64 },
 		[IPSET_ATTR_PACKETS]	= { .type = NLA_U64 },
+		[IPSET_ATTR_COMMENT]	= { .type = NLA_NUL_STRING },
 	},
 	.me		= THIS_MODULE,
 };
diff --git a/net/netfilter/ipset/ip_set_bitmap_ipmac.c b/net/netfilter/ipset/ip_set_bitmap_ipmac.c
index 654a97bedfe9..fb4d163dea82 100644
--- a/net/netfilter/ipset/ip_set_bitmap_ipmac.c
+++ b/net/netfilter/ipset/ip_set_bitmap_ipmac.c
@@ -26,7 +26,8 @@
 #include <linux/netfilter/ipset/ip_set_bitmap.h>
 
 #define IPSET_TYPE_REV_MIN	0
-#define IPSET_TYPE_REV_MAX	1	/* Counter support added */
+/*				1	   Counter support added */
+#define IPSET_TYPE_REV_MAX	2	/* Comment support added */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
@@ -403,6 +404,7 @@ static struct ip_set_type bitmap_ipmac_type = {
 		[IPSET_ATTR_LINENO]	= { .type = NLA_U32 },
 		[IPSET_ATTR_BYTES]	= { .type = NLA_U64 },
 		[IPSET_ATTR_PACKETS]	= { .type = NLA_U64 },
+		[IPSET_ATTR_COMMENT]	= { .type = NLA_NUL_STRING },
 	},
 	.me		= THIS_MODULE,
 };
diff --git a/net/netfilter/ipset/ip_set_bitmap_port.c b/net/netfilter/ipset/ip_set_bitmap_port.c
index 1ef2f3186b80..407a63caee6b 100644
--- a/net/netfilter/ipset/ip_set_bitmap_port.c
+++ b/net/netfilter/ipset/ip_set_bitmap_port.c
@@ -21,7 +21,8 @@
 #include <linux/netfilter/ipset/ip_set_getport.h>
 
 #define IPSET_TYPE_REV_MIN	0
-#define IPSET_TYPE_REV_MAX	1	/* Counter support added */
+/*				1	   Counter support added */
+#define IPSET_TYPE_REV_MAX	2	/* Comment support added */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
@@ -288,6 +289,7 @@ static struct ip_set_type bitmap_port_type = {
 		[IPSET_ATTR_LINENO]	= { .type = NLA_U32 },
 		[IPSET_ATTR_BYTES]	= { .type = NLA_U64 },
 		[IPSET_ATTR_PACKETS]	= { .type = NLA_U64 },
+		[IPSET_ATTR_COMMENT]	= { .type = NLA_NUL_STRING },
 	},
 	.me		= THIS_MODULE,
 };
-- 
cgit 


From 81b10bb4bd16ea975c007f9bb2c2676cef6ade10 Mon Sep 17 00:00:00 2001
From: Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>
Date: Sun, 22 Sep 2013 20:56:33 +0200
Subject: netfilter: ipset: Support comments in the list-type ipset.

This provides kernel support for creating list ipsets with the comment
annotation extension.

Signed-off-by: Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 net/netfilter/ipset/ip_set_list_set.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/net/netfilter/ipset/ip_set_list_set.c b/net/netfilter/ipset/ip_set_list_set.c
index 30bf1dd11f04..f9681dcf7476 100644
--- a/net/netfilter/ipset/ip_set_list_set.c
+++ b/net/netfilter/ipset/ip_set_list_set.c
@@ -16,7 +16,8 @@
 #include <linux/netfilter/ipset/ip_set_list.h>
 
 #define IPSET_TYPE_REV_MIN	0
-#define IPSET_TYPE_REV_MAX	1 /* Counters support added */
+/*				1    Counters support added */
+#define IPSET_TYPE_REV_MAX	2 /* Comments support added */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
@@ -191,6 +192,8 @@ list_set_add(struct ip_set *set, u32 i, struct set_adt_elem *d,
 		ip_set_timeout_set(ext_timeout(e, set), ext->timeout);
 	if (SET_WITH_COUNTER(set))
 		ip_set_init_counter(ext_counter(e, set), ext);
+	if (SET_WITH_COMMENT(set) && ext->comment)
+		ip_set_init_comment(ext_comment(e, set), ext);
 	return 0;
 }
 
@@ -299,6 +302,8 @@ list_set_uadd(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 			ip_set_timeout_set(ext_timeout(e, set), ext->timeout);
 		if (SET_WITH_COUNTER(set))
 			ip_set_init_counter(ext_counter(e, set), ext);
+		if (SET_WITH_COMMENT(set))
+			ip_set_init_comment(ext_comment(e, set), ext);
 		/* Set is already added to the list */
 		ip_set_put_byindex(d->id);
 		return 0;
@@ -461,15 +466,12 @@ list_set_head(struct ip_set *set, struct sk_buff *skb)
 	if (!nested)
 		goto nla_put_failure;
 	if (nla_put_net32(skb, IPSET_ATTR_SIZE, htonl(map->size)) ||
-	    (SET_WITH_TIMEOUT(set) &&
-	     nla_put_net32(skb, IPSET_ATTR_TIMEOUT, htonl(set->timeout))) ||
-	    (SET_WITH_COUNTER(set) &&
-	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS,
-			   htonl(IPSET_FLAG_WITH_COUNTERS))) ||
 	    nla_put_net32(skb, IPSET_ATTR_REFERENCES, htonl(set->ref - 1)) ||
 	    nla_put_net32(skb, IPSET_ATTR_MEMSIZE,
 			  htonl(sizeof(*map) + map->size * set->dsize)))
 		goto nla_put_failure;
+	if (unlikely(ip_set_put_flags(skb, set)))
+		goto nla_put_failure;
 	ipset_nest_end(skb, nested);
 
 	return 0;
@@ -516,6 +518,9 @@ list_set_list(const struct ip_set *set,
 		if (SET_WITH_COUNTER(set) &&
 		    ip_set_put_counter(skb, ext_counter(e, set)))
 			goto nla_put_failure;
+		if (SET_WITH_COMMENT(set) &&
+		    ip_set_put_comment(skb, ext_comment(e, set)))
+			goto nla_put_failure;
 		ipset_nest_end(skb, nested);
 	}
 finish:
@@ -660,6 +665,7 @@ static struct ip_set_type list_set_type __read_mostly = {
 		[IPSET_ATTR_CADT_FLAGS]	= { .type = NLA_U32 },
 		[IPSET_ATTR_BYTES]	= { .type = NLA_U64 },
 		[IPSET_ATTR_PACKETS]	= { .type = NLA_U64 },
+		[IPSET_ATTR_COMMENT]	= { .type = NLA_NUL_STRING },
 	},
 	.me		= THIS_MODULE,
 };
-- 
cgit 


From fda75c6d9e31a901e25b922e86c8fd505c899873 Mon Sep 17 00:00:00 2001
From: Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>
Date: Sun, 22 Sep 2013 20:56:31 +0200
Subject: netfilter: ipset: Support comments in hash-type ipsets.

This provides kernel support for creating ipsets with comment support.

This does incur a penalty to flushing/destroying an ipset since all
entries are walked in order to free the allocated strings, this penalty
is of course less expensive than the operation of listing an ipset to
userspace, so for general-purpose usage the overall impact is expected
to be little to none.

Signed-off-by: Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 net/netfilter/ipset/ip_set_hash_gen.h       | 14 ++++++++------
 net/netfilter/ipset/ip_set_hash_ip.c        |  4 +++-
 net/netfilter/ipset/ip_set_hash_ipport.c    |  4 +++-
 net/netfilter/ipset/ip_set_hash_ipportip.c  |  4 +++-
 net/netfilter/ipset/ip_set_hash_ipportnet.c |  4 +++-
 net/netfilter/ipset/ip_set_hash_net.c       |  4 +++-
 net/netfilter/ipset/ip_set_hash_netiface.c  |  4 +++-
 net/netfilter/ipset/ip_set_hash_netnet.c    |  1 +
 net/netfilter/ipset/ip_set_hash_netport.c   |  4 +++-
 9 files changed, 30 insertions(+), 13 deletions(-)

diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index 6bd2eef4f5d0..6efb65569e88 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -701,6 +701,8 @@ reuse_slot:
 		ip_set_timeout_set(ext_timeout(data, set), ext->timeout);
 	if (SET_WITH_COUNTER(set))
 		ip_set_init_counter(ext_counter(data, set), ext);
+	if (SET_WITH_COMMENT(set))
+		ip_set_init_comment(ext_comment(data, set), ext);
 
 out:
 	rcu_read_unlock_bh();
@@ -908,12 +910,9 @@ mtype_head(struct ip_set *set, struct sk_buff *skb)
 		goto nla_put_failure;
 #endif
 	if (nla_put_net32(skb, IPSET_ATTR_REFERENCES, htonl(set->ref - 1)) ||
-	    nla_put_net32(skb, IPSET_ATTR_MEMSIZE, htonl(memsize)) ||
-	    ((set->extensions & IPSET_EXT_TIMEOUT) &&
-	     nla_put_net32(skb, IPSET_ATTR_TIMEOUT, htonl(set->timeout))) ||
-	    ((set->extensions & IPSET_EXT_COUNTER) &&
-	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS,
-			   htonl(IPSET_FLAG_WITH_COUNTERS))))
+	    nla_put_net32(skb, IPSET_ATTR_MEMSIZE, htonl(memsize)))
+		goto nla_put_failure;
+	if (unlikely(ip_set_put_flags(skb, set)))
 		goto nla_put_failure;
 	ipset_nest_end(skb, nested);
 
@@ -970,6 +969,9 @@ mtype_list(const struct ip_set *set,
 			if (SET_WITH_COUNTER(set) &&
 			    ip_set_put_counter(skb, ext_counter(e, set)))
 				goto nla_put_failure;
+			if (SET_WITH_COMMENT(set) &&
+			    ip_set_put_comment(skb, ext_comment(e, set)))
+				goto nla_put_failure;
 			ipset_nest_end(skb, nested);
 		}
 	}
diff --git a/net/netfilter/ipset/ip_set_hash_ip.c b/net/netfilter/ipset/ip_set_hash_ip.c
index a111ffe40b46..e65fc2423d56 100644
--- a/net/netfilter/ipset/ip_set_hash_ip.c
+++ b/net/netfilter/ipset/ip_set_hash_ip.c
@@ -24,7 +24,8 @@
 #include <linux/netfilter/ipset/ip_set_hash.h>
 
 #define IPSET_TYPE_REV_MIN	0
-#define IPSET_TYPE_REV_MAX	1	/* Counters support */
+/*				1	   Counters support */
+#define IPSET_TYPE_REV_MAX	2	/* Comments support */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
@@ -292,6 +293,7 @@ static struct ip_set_type hash_ip_type __read_mostly = {
 		[IPSET_ATTR_LINENO]	= { .type = NLA_U32 },
 		[IPSET_ATTR_BYTES]	= { .type = NLA_U64 },
 		[IPSET_ATTR_PACKETS]	= { .type = NLA_U64 },
+		[IPSET_ATTR_COMMENT]	= { .type = NLA_NUL_STRING },
 	},
 	.me		= THIS_MODULE,
 };
diff --git a/net/netfilter/ipset/ip_set_hash_ipport.c b/net/netfilter/ipset/ip_set_hash_ipport.c
index 5dc735c4dac2..525a595dd1fe 100644
--- a/net/netfilter/ipset/ip_set_hash_ipport.c
+++ b/net/netfilter/ipset/ip_set_hash_ipport.c
@@ -26,7 +26,8 @@
 
 #define IPSET_TYPE_REV_MIN	0
 /*				1    SCTP and UDPLITE support added */
-#define IPSET_TYPE_REV_MAX	2 /* Counters support added */
+/*				2    Counters support added */
+#define IPSET_TYPE_REV_MAX	3 /* Comments support added */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
@@ -367,6 +368,7 @@ static struct ip_set_type hash_ipport_type __read_mostly = {
 		[IPSET_ATTR_LINENO]	= { .type = NLA_U32 },
 		[IPSET_ATTR_BYTES]	= { .type = NLA_U64 },
 		[IPSET_ATTR_PACKETS]	= { .type = NLA_U64 },
+		[IPSET_ATTR_COMMENT]	= { .type = NLA_NUL_STRING },
 	},
 	.me		= THIS_MODULE,
 };
diff --git a/net/netfilter/ipset/ip_set_hash_ipportip.c b/net/netfilter/ipset/ip_set_hash_ipportip.c
index 8c43dc7811cb..f5636631466e 100644
--- a/net/netfilter/ipset/ip_set_hash_ipportip.c
+++ b/net/netfilter/ipset/ip_set_hash_ipportip.c
@@ -26,7 +26,8 @@
 
 #define IPSET_TYPE_REV_MIN	0
 /*				1    SCTP and UDPLITE support added */
-#define IPSET_TYPE_REV_MAX	2 /* Counters support added */
+/*				2    Counters support added */
+#define IPSET_TYPE_REV_MAX	3 /* Comments support added */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
@@ -379,6 +380,7 @@ static struct ip_set_type hash_ipportip_type __read_mostly = {
 		[IPSET_ATTR_LINENO]	= { .type = NLA_U32 },
 		[IPSET_ATTR_BYTES]	= { .type = NLA_U64 },
 		[IPSET_ATTR_PACKETS]	= { .type = NLA_U64 },
+		[IPSET_ATTR_COMMENT]	= { .type = NLA_NUL_STRING },
 	},
 	.me		= THIS_MODULE,
 };
diff --git a/net/netfilter/ipset/ip_set_hash_ipportnet.c b/net/netfilter/ipset/ip_set_hash_ipportnet.c
index 34890452366c..5d87fe8a41ff 100644
--- a/net/netfilter/ipset/ip_set_hash_ipportnet.c
+++ b/net/netfilter/ipset/ip_set_hash_ipportnet.c
@@ -28,7 +28,8 @@
 /*				1    SCTP and UDPLITE support added */
 /*				2    Range as input support for IPv4 added */
 /*				3    nomatch flag support added */
-#define IPSET_TYPE_REV_MAX	4 /* Counters support added */
+/*				4    Counters support added */
+#define IPSET_TYPE_REV_MAX	5 /* Comments support added */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
@@ -538,6 +539,7 @@ static struct ip_set_type hash_ipportnet_type __read_mostly = {
 		[IPSET_ATTR_LINENO]	= { .type = NLA_U32 },
 		[IPSET_ATTR_BYTES]	= { .type = NLA_U64 },
 		[IPSET_ATTR_PACKETS]	= { .type = NLA_U64 },
+		[IPSET_ATTR_COMMENT]	= { .type = NLA_NUL_STRING },
 	},
 	.me		= THIS_MODULE,
 };
diff --git a/net/netfilter/ipset/ip_set_hash_net.c b/net/netfilter/ipset/ip_set_hash_net.c
index d5598557f4a9..8295cf4f9fdc 100644
--- a/net/netfilter/ipset/ip_set_hash_net.c
+++ b/net/netfilter/ipset/ip_set_hash_net.c
@@ -25,7 +25,8 @@
 #define IPSET_TYPE_REV_MIN	0
 /*				1    Range as input support for IPv4 added */
 /*				2    nomatch flag support added */
-#define IPSET_TYPE_REV_MAX	3 /* Counters support added */
+/*				3    Counters support added */
+#define IPSET_TYPE_REV_MAX	4 /* Comments support added */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
@@ -374,6 +375,7 @@ static struct ip_set_type hash_net_type __read_mostly = {
 		[IPSET_ATTR_CADT_FLAGS]	= { .type = NLA_U32 },
 		[IPSET_ATTR_BYTES]	= { .type = NLA_U64 },
 		[IPSET_ATTR_PACKETS]	= { .type = NLA_U64 },
+		[IPSET_ATTR_COMMENT]	= { .type = NLA_NUL_STRING },
 	},
 	.me		= THIS_MODULE,
 };
diff --git a/net/netfilter/ipset/ip_set_hash_netiface.c b/net/netfilter/ipset/ip_set_hash_netiface.c
index 26703e9e5082..3f64a66bf5d9 100644
--- a/net/netfilter/ipset/ip_set_hash_netiface.c
+++ b/net/netfilter/ipset/ip_set_hash_netiface.c
@@ -26,7 +26,8 @@
 #define IPSET_TYPE_REV_MIN	0
 /*				1    nomatch flag support added */
 /*				2    /0 support added */
-#define IPSET_TYPE_REV_MAX	3 /* Counters support added */
+/*				3    Counters support added */
+#define IPSET_TYPE_REV_MAX	4 /* Comments support added */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
@@ -606,6 +607,7 @@ static struct ip_set_type hash_netiface_type __read_mostly = {
 		[IPSET_ATTR_LINENO]	= { .type = NLA_U32 },
 		[IPSET_ATTR_BYTES]	= { .type = NLA_U64 },
 		[IPSET_ATTR_PACKETS]	= { .type = NLA_U64 },
+		[IPSET_ATTR_COMMENT]	= { .type = NLA_NUL_STRING },
 	},
 	.me		= THIS_MODULE,
 };
diff --git a/net/netfilter/ipset/ip_set_hash_netnet.c b/net/netfilter/ipset/ip_set_hash_netnet.c
index 771ce2b565a6..426032706ca9 100644
--- a/net/netfilter/ipset/ip_set_hash_netnet.c
+++ b/net/netfilter/ipset/ip_set_hash_netnet.c
@@ -462,6 +462,7 @@ static struct ip_set_type hash_netnet_type __read_mostly = {
 		[IPSET_ATTR_CADT_FLAGS]	= { .type = NLA_U32 },
 		[IPSET_ATTR_BYTES]	= { .type = NLA_U64 },
 		[IPSET_ATTR_PACKETS]	= { .type = NLA_U64 },
+		[IPSET_ATTR_COMMENT]	= { .type = NLA_NUL_STRING },
 	},
 	.me		= THIS_MODULE,
 };
diff --git a/net/netfilter/ipset/ip_set_hash_netport.c b/net/netfilter/ipset/ip_set_hash_netport.c
index 45b6e91b0636..7097fb0141bf 100644
--- a/net/netfilter/ipset/ip_set_hash_netport.c
+++ b/net/netfilter/ipset/ip_set_hash_netport.c
@@ -27,7 +27,8 @@
 /*				1    SCTP and UDPLITE support added */
 /*				2    Range as input support for IPv4 added */
 /*				3    nomatch flag support added */
-#define IPSET_TYPE_REV_MAX	4 /* Counters support added */
+/*				4    Counters support added */
+#define IPSET_TYPE_REV_MAX	5 /* Comments support added */
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>");
@@ -486,6 +487,7 @@ static struct ip_set_type hash_netport_type __read_mostly = {
 		[IPSET_ATTR_CADT_FLAGS]	= { .type = NLA_U32 },
 		[IPSET_ATTR_BYTES]	= { .type = NLA_U64 },
 		[IPSET_ATTR_PACKETS]	= { .type = NLA_U64 },
+		[IPSET_ATTR_COMMENT]	= { .type = NLA_NUL_STRING },
 	},
 	.me		= THIS_MODULE,
 };
-- 
cgit 


From 80571a9ea4ca9b6fee7ef0c13d3f31e774e0533b Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Mon, 23 Sep 2013 17:45:21 +0200
Subject: netfilter: ipset: Fix hash resizing with comments

The destroy function must take into account that resizing doesn't
create new extensions so those cannot be destroyed at resize.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 net/netfilter/ipset/ip_set_hash_gen.h | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index 6efb65569e88..1cffeb977605 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -393,7 +393,7 @@ mtype_flush(struct ip_set *set)
 
 /* Destroy the hashtable part of the set */
 static void
-mtype_ahash_destroy(struct ip_set *set, struct htable *t)
+mtype_ahash_destroy(struct ip_set *set, struct htable *t, bool ext_destroy)
 {
 	struct hbucket *n;
 	u32 i;
@@ -401,7 +401,7 @@ mtype_ahash_destroy(struct ip_set *set, struct htable *t)
 	for (i = 0; i < jhash_size(t->htable_bits); i++) {
 		n = hbucket(t, i);
 		if (n->size) {
-			if (set->extensions & IPSET_EXT_DESTROY)
+			if (set->extensions & IPSET_EXT_DESTROY && ext_destroy)
 				mtype_ext_cleanup(set, n);
 			/* FIXME: use slab cache */
 			kfree(n->value);
@@ -420,7 +420,7 @@ mtype_destroy(struct ip_set *set)
 	if (set->extensions & IPSET_EXT_TIMEOUT)
 		del_timer_sync(&h->gc);
 
-	mtype_ahash_destroy(set, rcu_dereference_bh_nfnl(h->table));
+	mtype_ahash_destroy(set, rcu_dereference_bh_nfnl(h->table), true);
 #ifdef IP_SET_HASH_WITH_RBTREE
 	rbtree_destroy(&h->rbtree);
 #endif
@@ -586,7 +586,7 @@ retry:
 				mtype_data_reset_flags(data, &flags);
 #endif
 				read_unlock_bh(&set->lock);
-				mtype_ahash_destroy(set, t);
+				mtype_ahash_destroy(set, t, false);
 				if (ret == -EAGAIN)
 					goto retry;
 				return ret;
@@ -607,7 +607,7 @@ retry:
 
 	pr_debug("set %s resized from %u (%p) to %u (%p)\n", set->name,
 		 orig->htable_bits, orig, t->htable_bits, t);
-	mtype_ahash_destroy(set, orig);
+	mtype_ahash_destroy(set, orig, false);
 
 	return 0;
 }
-- 
cgit 


From 8ec81f9a4db94fa5638c55793365b896dd9daecc Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Mon, 23 Sep 2013 21:28:06 +0200
Subject: netfilter: ipset: For set:list types, replaced elements must be
 zeroed out

The new extensions require zero initialization for the new element
to be added into a slot from where another element was pushed away.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 net/netfilter/ipset/ip_set_list_set.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/netfilter/ipset/ip_set_list_set.c b/net/netfilter/ipset/ip_set_list_set.c
index f9681dcf7476..e23f33c14435 100644
--- a/net/netfilter/ipset/ip_set_list_set.c
+++ b/net/netfilter/ipset/ip_set_list_set.c
@@ -184,6 +184,8 @@ list_set_add(struct ip_set *set, u32 i, struct set_adt_elem *d,
 			}
 			memmove(list_set_elem(set, map, i + 1), e,
 				set->dsize * (map->size - (i + 1)));
+			/* Extensions must be initialized to zero */
+			memset(e, 0, set->dsize);
 		}
 	}
 
@@ -192,7 +194,7 @@ list_set_add(struct ip_set *set, u32 i, struct set_adt_elem *d,
 		ip_set_timeout_set(ext_timeout(e, set), ext->timeout);
 	if (SET_WITH_COUNTER(set))
 		ip_set_init_counter(ext_counter(e, set), ext);
-	if (SET_WITH_COMMENT(set) && ext->comment)
+	if (SET_WITH_COMMENT(set))
 		ip_set_init_comment(ext_comment(e, set), ext);
 	return 0;
 }
-- 
cgit 


From 90de527d7ec77e509a22596d8f9eae9b90fd28ca Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Fri, 27 Sep 2013 01:22:01 +0200
Subject: bonding: trivial: remove forgotten bond_next_vlan()

It's a forgotten function declaration, which was removed some time ago
already.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bonding.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 713b6af555c7..9a26fbd82645 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -398,7 +398,6 @@ static inline bool slave_can_tx(struct slave *slave)
 struct bond_net;
 
 int bond_arp_rcv(const struct sk_buff *skb, struct bonding *bond, struct slave *slave);
-struct vlan_entry *bond_next_vlan(struct bonding *bond, struct vlan_entry *curr);
 int bond_dev_queue_xmit(struct bonding *bond, struct sk_buff *skb, struct net_device *slave_dev);
 void bond_xmit_slave_id(struct bonding *bond, struct sk_buff *skb, int slave_id);
 int bond_create(struct net *net, const char *name);
-- 
cgit 


From 3fd986b3d99e3847f1cce6fc36043d0f16508e1d Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Wed, 25 Sep 2013 17:44:35 +0200
Subject: netfilter: ipset: Use a common function at listing the extensions

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 include/linux/netfilter/ipset/ip_set.h    | 21 +++++++++++++++++++++
 net/netfilter/ipset/ip_set_bitmap_gen.h   | 29 ++++++++++-------------------
 net/netfilter/ipset/ip_set_bitmap_ipmac.c | 11 -----------
 net/netfilter/ipset/ip_set_hash_gen.h     | 11 +----------
 net/netfilter/ipset/ip_set_list_set.c     | 11 +----------
 5 files changed, 33 insertions(+), 50 deletions(-)

diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h
index 407f84df6a47..da2a45acf74c 100644
--- a/include/linux/netfilter/ipset/ip_set.h
+++ b/include/linux/netfilter/ipset/ip_set.h
@@ -461,6 +461,27 @@ bitmap_bytes(u32 a, u32 b)
 #include <linux/netfilter/ipset/ip_set_timeout.h>
 #include <linux/netfilter/ipset/ip_set_comment.h>
 
+static inline int
+ip_set_put_extensions(struct sk_buff *skb, const struct ip_set *set,
+		      const void *e, bool active)
+{
+	if (SET_WITH_TIMEOUT(set)) {
+		unsigned long *timeout = ext_timeout(e, set);
+
+		if (nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
+			htonl(active ? ip_set_timeout_get(timeout)
+				: *timeout)))
+			return -EMSGSIZE;
+	}
+	if (SET_WITH_COUNTER(set) &&
+	    ip_set_put_counter(skb, ext_counter(e, set)))
+		return -EMSGSIZE;
+	if (SET_WITH_COMMENT(set) &&
+	    ip_set_put_comment(skb, ext_comment(e, set)))
+		return -EMSGSIZE;
+	return 0;
+}
+
 #define IP_SET_INIT_KEXT(skb, opt, set)			\
 	{ .bytes = (skb)->len, .packets = 1,		\
 	  .timeout = ip_set_adt_opt_timeout(opt, set) }
diff --git a/net/netfilter/ipset/ip_set_bitmap_gen.h b/net/netfilter/ipset/ip_set_bitmap_gen.h
index 6167fc9d0efe..a13e15be7911 100644
--- a/net/netfilter/ipset/ip_set_bitmap_gen.h
+++ b/net/netfilter/ipset/ip_set_bitmap_gen.h
@@ -183,6 +183,14 @@ mtype_del(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 	return 0;
 }
 
+#ifndef IP_SET_BITMAP_STORED_TIMEOUT
+static inline bool
+mtype_is_filled(const struct mtype_elem *x)
+{
+	return true;
+}
+#endif
+
 static int
 mtype_list(const struct ip_set *set,
 	   struct sk_buff *skb, struct netlink_callback *cb)
@@ -215,25 +223,8 @@ mtype_list(const struct ip_set *set,
 		}
 		if (mtype_do_list(skb, map, id, set->dsize))
 			goto nla_put_failure;
-		if (SET_WITH_TIMEOUT(set)) {
-#ifdef IP_SET_BITMAP_STORED_TIMEOUT
-			if (nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
-					  htonl(ip_set_timeout_stored(map, id,
-							ext_timeout(x, set),
-							set->dsize))))
-				goto nla_put_failure;
-#else
-			if (nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
-					  htonl(ip_set_timeout_get(
-							ext_timeout(x, set)))))
-				goto nla_put_failure;
-#endif
-		}
-		if (SET_WITH_COUNTER(set) &&
-		    ip_set_put_counter(skb, ext_counter(x, set)))
-			goto nla_put_failure;
-		if (SET_WITH_COMMENT(set) &&
-		    ip_set_put_comment(skb, ext_comment(x, set)))
+		if (ip_set_put_extensions(skb, set, x,
+		    mtype_is_filled((const struct mtype_elem *) x)))
 			goto nla_put_failure;
 		ipset_nest_end(skb, nested);
 	}
diff --git a/net/netfilter/ipset/ip_set_bitmap_ipmac.c b/net/netfilter/ipset/ip_set_bitmap_ipmac.c
index fb4d163dea82..87a218f8ab5f 100644
--- a/net/netfilter/ipset/ip_set_bitmap_ipmac.c
+++ b/net/netfilter/ipset/ip_set_bitmap_ipmac.c
@@ -176,17 +176,6 @@ bitmap_ipmac_do_del(const struct bitmap_ipmac_adt_elem *e,
 	return !test_and_clear_bit(e->id, map->members);
 }
 
-static inline unsigned long
-ip_set_timeout_stored(struct bitmap_ipmac *map, u32 id, unsigned long *timeout,
-		      size_t dsize)
-{
-	const struct bitmap_ipmac_elem *elem =
-		get_elem(map->extensions, id, dsize);
-
-	return elem->filled == MAC_FILLED ? ip_set_timeout_get(timeout) :
-					    *timeout;
-}
-
 static inline int
 bitmap_ipmac_do_list(struct sk_buff *skb, const struct bitmap_ipmac *map,
 		     u32 id, size_t dsize)
diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index 1cffeb977605..b4add206c603 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -961,16 +961,7 @@ mtype_list(const struct ip_set *set,
 			}
 			if (mtype_data_list(skb, e))
 				goto nla_put_failure;
-			if (SET_WITH_TIMEOUT(set) &&
-			    nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
-					  htonl(ip_set_timeout_get(
-						ext_timeout(e, set)))))
-				goto nla_put_failure;
-			if (SET_WITH_COUNTER(set) &&
-			    ip_set_put_counter(skb, ext_counter(e, set)))
-				goto nla_put_failure;
-			if (SET_WITH_COMMENT(set) &&
-			    ip_set_put_comment(skb, ext_comment(e, set)))
+			if (ip_set_put_extensions(skb, set, e, true))
 				goto nla_put_failure;
 			ipset_nest_end(skb, nested);
 		}
diff --git a/net/netfilter/ipset/ip_set_list_set.c b/net/netfilter/ipset/ip_set_list_set.c
index e23f33c14435..ba4232e451f4 100644
--- a/net/netfilter/ipset/ip_set_list_set.c
+++ b/net/netfilter/ipset/ip_set_list_set.c
@@ -512,16 +512,7 @@ list_set_list(const struct ip_set *set,
 		if (nla_put_string(skb, IPSET_ATTR_NAME,
 				   ip_set_name_byindex(e->id)))
 			goto nla_put_failure;
-		if (SET_WITH_TIMEOUT(set) &&
-		    nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
-				  htonl(ip_set_timeout_get(
-						ext_timeout(e, set)))))
-			goto nla_put_failure;
-		if (SET_WITH_COUNTER(set) &&
-		    ip_set_put_counter(skb, ext_counter(e, set)))
-			goto nla_put_failure;
-		if (SET_WITH_COMMENT(set) &&
-		    ip_set_put_comment(skb, ext_comment(e, set)))
+		if (ip_set_put_extensions(skb, set, e, true))
 			goto nla_put_failure;
 		ipset_nest_end(skb, nested);
 	}
-- 
cgit 


From 1785e8f473082aa60d62c7165856cf6484077b99 Mon Sep 17 00:00:00 2001
From: Vitaly Lavrov <lve@guap.ru>
Date: Mon, 30 Sep 2013 17:07:02 +0200
Subject: netfiler: ipset: Add net namespace for ipset

This patch adds netns support for ipset.

Major changes were made in ip_set_core.c and ip_set.h.
Global variables are moved to per net namespace.
Added initialization code and the destruction of the network namespace ipset subsystem.
In the prototypes of public functions ip_set_* added parameter "struct net*".

The remaining corrections related to the change prototypes of public functions ip_set_*.

The patch for git://git.netfilter.org/ipset.git commit 6a4ec96c0b8caac5c35474e40e319704d92ca347

Signed-off-by: Vitaly Lavrov <lve@guap.ru>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 include/linux/netfilter/ipset/ip_set.h    |  16 +-
 net/netfilter/ipset/ip_set_bitmap_ip.c    |   3 +-
 net/netfilter/ipset/ip_set_bitmap_ipmac.c |   2 +-
 net/netfilter/ipset/ip_set_bitmap_port.c  |   3 +-
 net/netfilter/ipset/ip_set_core.c         | 288 +++++++++++++++++++-----------
 net/netfilter/ipset/ip_set_hash_gen.h     |   3 +-
 net/netfilter/ipset/ip_set_list_set.c     |  31 ++--
 net/netfilter/xt_set.c                    |  40 ++---
 net/sched/em_ipset.c                      |   7 +-
 9 files changed, 245 insertions(+), 148 deletions(-)

diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h
index da2a45acf74c..7967516adc0d 100644
--- a/include/linux/netfilter/ipset/ip_set.h
+++ b/include/linux/netfilter/ipset/ip_set.h
@@ -184,7 +184,8 @@ struct ip_set_type {
 	u8 revision_min, revision_max;
 
 	/* Create set */
-	int (*create)(struct ip_set *set, struct nlattr *tb[], u32 flags);
+	int (*create)(struct net *net, struct ip_set *set,
+		      struct nlattr *tb[], u32 flags);
 
 	/* Attribute policies */
 	const struct nla_policy create_policy[IPSET_ATTR_CREATE_MAX + 1];
@@ -316,12 +317,13 @@ ip_set_init_counter(struct ip_set_counter *counter,
 }
 
 /* register and unregister set references */
-extern ip_set_id_t ip_set_get_byname(const char *name, struct ip_set **set);
-extern void ip_set_put_byindex(ip_set_id_t index);
-extern const char *ip_set_name_byindex(ip_set_id_t index);
-extern ip_set_id_t ip_set_nfnl_get(const char *name);
-extern ip_set_id_t ip_set_nfnl_get_byindex(ip_set_id_t index);
-extern void ip_set_nfnl_put(ip_set_id_t index);
+extern ip_set_id_t ip_set_get_byname(struct net *net,
+				     const char *name, struct ip_set **set);
+extern void ip_set_put_byindex(struct net *net, ip_set_id_t index);
+extern const char *ip_set_name_byindex(struct net *net, ip_set_id_t index);
+extern ip_set_id_t ip_set_nfnl_get(struct net *net, const char *name);
+extern ip_set_id_t ip_set_nfnl_get_byindex(struct net *net, ip_set_id_t index);
+extern void ip_set_nfnl_put(struct net *net, ip_set_id_t index);
 
 /* API for iptables set match, and SET target */
 
diff --git a/net/netfilter/ipset/ip_set_bitmap_ip.c b/net/netfilter/ipset/ip_set_bitmap_ip.c
index faac124e2645..6f1f9f494808 100644
--- a/net/netfilter/ipset/ip_set_bitmap_ip.c
+++ b/net/netfilter/ipset/ip_set_bitmap_ip.c
@@ -242,7 +242,8 @@ init_map_ip(struct ip_set *set, struct bitmap_ip *map,
 }
 
 static int
-bitmap_ip_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
+bitmap_ip_create(struct net *net, struct ip_set *set, struct nlattr *tb[],
+		 u32 flags)
 {
 	struct bitmap_ip *map;
 	u32 first_ip = 0, last_ip = 0, hosts;
diff --git a/net/netfilter/ipset/ip_set_bitmap_ipmac.c b/net/netfilter/ipset/ip_set_bitmap_ipmac.c
index 87a218f8ab5f..740eabededd9 100644
--- a/net/netfilter/ipset/ip_set_bitmap_ipmac.c
+++ b/net/netfilter/ipset/ip_set_bitmap_ipmac.c
@@ -309,7 +309,7 @@ init_map_ipmac(struct ip_set *set, struct bitmap_ipmac *map,
 }
 
 static int
-bitmap_ipmac_create(struct ip_set *set, struct nlattr *tb[],
+bitmap_ipmac_create(struct net *net, struct ip_set *set, struct nlattr *tb[],
 		    u32 flags)
 {
 	u32 first_ip = 0, last_ip = 0;
diff --git a/net/netfilter/ipset/ip_set_bitmap_port.c b/net/netfilter/ipset/ip_set_bitmap_port.c
index 407a63caee6b..e7603c5b53d7 100644
--- a/net/netfilter/ipset/ip_set_bitmap_port.c
+++ b/net/netfilter/ipset/ip_set_bitmap_port.c
@@ -228,7 +228,8 @@ init_map_port(struct ip_set *set, struct bitmap_port *map,
 }
 
 static int
-bitmap_port_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
+bitmap_port_create(struct net *net, struct ip_set *set, struct nlattr *tb[],
+		   u32 flags)
 {
 	struct bitmap_port *map;
 	u16 first_port, last_port;
diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
index 3bf9a3d29dff..dc9284bdd2dd 100644
--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -17,6 +17,8 @@
 #include <linux/spinlock.h>
 #include <linux/rculist.h>
 #include <net/netlink.h>
+#include <net/net_namespace.h>
+#include <net/netns/generic.h>
 
 #include <linux/netfilter.h>
 #include <linux/netfilter/x_tables.h>
@@ -27,8 +29,17 @@ static LIST_HEAD(ip_set_type_list);		/* all registered set types */
 static DEFINE_MUTEX(ip_set_type_mutex);		/* protects ip_set_type_list */
 static DEFINE_RWLOCK(ip_set_ref_lock);		/* protects the set refs */
 
-static struct ip_set * __rcu *ip_set_list;	/* all individual sets */
-static ip_set_id_t ip_set_max = CONFIG_IP_SET_MAX; /* max number of sets */
+struct ip_set_net {
+	struct ip_set * __rcu *ip_set_list;	/* all individual sets */
+	ip_set_id_t	ip_set_max;	/* max number of sets */
+	int		is_deleted;	/* deleted by ip_set_net_exit */
+};
+static int ip_set_net_id __read_mostly;
+
+static inline struct ip_set_net *ip_set_pernet(struct net *net)
+{
+	return net_generic(net, ip_set_net_id);
+}
 
 #define IP_SET_INC	64
 #define STREQ(a, b)	(strncmp(a, b, IPSET_MAXNAMELEN) == 0)
@@ -45,8 +56,8 @@ MODULE_ALIAS_NFNL_SUBSYS(NFNL_SUBSYS_IPSET);
 /* When the nfnl mutex is held: */
 #define nfnl_dereference(p)		\
 	rcu_dereference_protected(p, 1)
-#define nfnl_set(id)			\
-	nfnl_dereference(ip_set_list)[id]
+#define nfnl_set(inst, id)			\
+	nfnl_dereference((inst)->ip_set_list)[id]
 
 /*
  * The set types are implemented in modules and registered set types
@@ -434,13 +445,14 @@ __ip_set_put(struct ip_set *set)
  */
 
 static inline struct ip_set *
-ip_set_rcu_get(ip_set_id_t index)
+ip_set_rcu_get(struct net *net, ip_set_id_t index)
 {
 	struct ip_set *set;
+	struct ip_set_net *inst = ip_set_pernet(net);
 
 	rcu_read_lock();
 	/* ip_set_list itself needs to be protected */
-	set = rcu_dereference(ip_set_list)[index];
+	set = rcu_dereference(inst->ip_set_list)[index];
 	rcu_read_unlock();
 
 	return set;
@@ -450,7 +462,8 @@ int
 ip_set_test(ip_set_id_t index, const struct sk_buff *skb,
 	    const struct xt_action_param *par, struct ip_set_adt_opt *opt)
 {
-	struct ip_set *set = ip_set_rcu_get(index);
+	struct ip_set *set = ip_set_rcu_get(
+			dev_net(par->in ? par->in : par->out), index);
 	int ret = 0;
 
 	BUG_ON(set == NULL);
@@ -488,7 +501,8 @@ int
 ip_set_add(ip_set_id_t index, const struct sk_buff *skb,
 	   const struct xt_action_param *par, struct ip_set_adt_opt *opt)
 {
-	struct ip_set *set = ip_set_rcu_get(index);
+	struct ip_set *set = ip_set_rcu_get(
+			dev_net(par->in ? par->in : par->out), index);
 	int ret;
 
 	BUG_ON(set == NULL);
@@ -510,7 +524,8 @@ int
 ip_set_del(ip_set_id_t index, const struct sk_buff *skb,
 	   const struct xt_action_param *par, struct ip_set_adt_opt *opt)
 {
-	struct ip_set *set = ip_set_rcu_get(index);
+	struct ip_set *set = ip_set_rcu_get(
+			dev_net(par->in ? par->in : par->out), index);
 	int ret = 0;
 
 	BUG_ON(set == NULL);
@@ -534,14 +549,15 @@ EXPORT_SYMBOL_GPL(ip_set_del);
  *
  */
 ip_set_id_t
-ip_set_get_byname(const char *name, struct ip_set **set)
+ip_set_get_byname(struct net *net, const char *name, struct ip_set **set)
 {
 	ip_set_id_t i, index = IPSET_INVALID_ID;
 	struct ip_set *s;
+	struct ip_set_net *inst = ip_set_pernet(net);
 
 	rcu_read_lock();
-	for (i = 0; i < ip_set_max; i++) {
-		s = rcu_dereference(ip_set_list)[i];
+	for (i = 0; i < inst->ip_set_max; i++) {
+		s = rcu_dereference(inst->ip_set_list)[i];
 		if (s != NULL && STREQ(s->name, name)) {
 			__ip_set_get(s);
 			index = i;
@@ -561,17 +577,26 @@ EXPORT_SYMBOL_GPL(ip_set_get_byname);
  * to be valid, after calling this function.
  *
  */
-void
-ip_set_put_byindex(ip_set_id_t index)
+
+static inline void
+__ip_set_put_byindex(struct ip_set_net *inst, ip_set_id_t index)
 {
 	struct ip_set *set;
 
 	rcu_read_lock();
-	set = rcu_dereference(ip_set_list)[index];
+	set = rcu_dereference(inst->ip_set_list)[index];
 	if (set != NULL)
 		__ip_set_put(set);
 	rcu_read_unlock();
 }
+
+void
+ip_set_put_byindex(struct net *net, ip_set_id_t index)
+{
+	struct ip_set_net *inst = ip_set_pernet(net);
+
+	__ip_set_put_byindex(inst, index);
+}
 EXPORT_SYMBOL_GPL(ip_set_put_byindex);
 
 /*
@@ -582,9 +607,9 @@ EXPORT_SYMBOL_GPL(ip_set_put_byindex);
  *
  */
 const char *
-ip_set_name_byindex(ip_set_id_t index)
+ip_set_name_byindex(struct net *net, ip_set_id_t index)
 {
-	const struct ip_set *set = ip_set_rcu_get(index);
+	const struct ip_set *set = ip_set_rcu_get(net, index);
 
 	BUG_ON(set == NULL);
 	BUG_ON(set->ref == 0);
@@ -606,14 +631,15 @@ EXPORT_SYMBOL_GPL(ip_set_name_byindex);
  * The nfnl mutex is used in the function.
  */
 ip_set_id_t
-ip_set_nfnl_get(const char *name)
+ip_set_nfnl_get(struct net *net, const char *name)
 {
 	ip_set_id_t i, index = IPSET_INVALID_ID;
 	struct ip_set *s;
+	struct ip_set_net *inst = ip_set_pernet(net);
 
 	nfnl_lock(NFNL_SUBSYS_IPSET);
-	for (i = 0; i < ip_set_max; i++) {
-		s = nfnl_set(i);
+	for (i = 0; i < inst->ip_set_max; i++) {
+		s = nfnl_set(inst, i);
 		if (s != NULL && STREQ(s->name, name)) {
 			__ip_set_get(s);
 			index = i;
@@ -633,15 +659,16 @@ EXPORT_SYMBOL_GPL(ip_set_nfnl_get);
  * The nfnl mutex is used in the function.
  */
 ip_set_id_t
-ip_set_nfnl_get_byindex(ip_set_id_t index)
+ip_set_nfnl_get_byindex(struct net *net, ip_set_id_t index)
 {
 	struct ip_set *set;
+	struct ip_set_net *inst = ip_set_pernet(net);
 
-	if (index > ip_set_max)
+	if (index > inst->ip_set_max)
 		return IPSET_INVALID_ID;
 
 	nfnl_lock(NFNL_SUBSYS_IPSET);
-	set = nfnl_set(index);
+	set = nfnl_set(inst, index);
 	if (set)
 		__ip_set_get(set);
 	else
@@ -660,13 +687,17 @@ EXPORT_SYMBOL_GPL(ip_set_nfnl_get_byindex);
  * The nfnl mutex is used in the function.
  */
 void
-ip_set_nfnl_put(ip_set_id_t index)
+ip_set_nfnl_put(struct net *net, ip_set_id_t index)
 {
 	struct ip_set *set;
+	struct ip_set_net *inst = ip_set_pernet(net);
+
 	nfnl_lock(NFNL_SUBSYS_IPSET);
-	set = nfnl_set(index);
-	if (set != NULL)
-		__ip_set_put(set);
+	if (!inst->is_deleted) { /* already deleted from ip_set_net_exit() */
+		set = nfnl_set(inst, index);
+		if (set != NULL)
+			__ip_set_put(set);
+	}
 	nfnl_unlock(NFNL_SUBSYS_IPSET);
 }
 EXPORT_SYMBOL_GPL(ip_set_nfnl_put);
@@ -724,14 +755,14 @@ static const struct nla_policy ip_set_create_policy[IPSET_ATTR_CMD_MAX + 1] = {
 };
 
 static struct ip_set *
-find_set_and_id(const char *name, ip_set_id_t *id)
+find_set_and_id(struct ip_set_net *inst, const char *name, ip_set_id_t *id)
 {
 	struct ip_set *set = NULL;
 	ip_set_id_t i;
 
 	*id = IPSET_INVALID_ID;
-	for (i = 0; i < ip_set_max; i++) {
-		set = nfnl_set(i);
+	for (i = 0; i < inst->ip_set_max; i++) {
+		set = nfnl_set(inst, i);
 		if (set != NULL && STREQ(set->name, name)) {
 			*id = i;
 			break;
@@ -741,22 +772,23 @@ find_set_and_id(const char *name, ip_set_id_t *id)
 }
 
 static inline struct ip_set *
-find_set(const char *name)
+find_set(struct ip_set_net *inst, const char *name)
 {
 	ip_set_id_t id;
 
-	return find_set_and_id(name, &id);
+	return find_set_and_id(inst, name, &id);
 }
 
 static int
-find_free_id(const char *name, ip_set_id_t *index, struct ip_set **set)
+find_free_id(struct ip_set_net *inst, const char *name, ip_set_id_t *index,
+	     struct ip_set **set)
 {
 	struct ip_set *s;
 	ip_set_id_t i;
 
 	*index = IPSET_INVALID_ID;
-	for (i = 0;  i < ip_set_max; i++) {
-		s = nfnl_set(i);
+	for (i = 0;  i < inst->ip_set_max; i++) {
+		s = nfnl_set(inst, i);
 		if (s == NULL) {
 			if (*index == IPSET_INVALID_ID)
 				*index = i;
@@ -785,6 +817,8 @@ ip_set_create(struct sock *ctnl, struct sk_buff *skb,
 	      const struct nlmsghdr *nlh,
 	      const struct nlattr * const attr[])
 {
+	struct net *net = sock_net(ctnl);
+	struct ip_set_net *inst = ip_set_pernet(net);
 	struct ip_set *set, *clash = NULL;
 	ip_set_id_t index = IPSET_INVALID_ID;
 	struct nlattr *tb[IPSET_ATTR_CREATE_MAX+1] = {};
@@ -843,7 +877,7 @@ ip_set_create(struct sock *ctnl, struct sk_buff *skb,
 		goto put_out;
 	}
 
-	ret = set->type->create(set, tb, flags);
+	ret = set->type->create(net, set, tb, flags);
 	if (ret != 0)
 		goto put_out;
 
@@ -854,7 +888,7 @@ ip_set_create(struct sock *ctnl, struct sk_buff *skb,
 	 * by the nfnl mutex. Find the first free index in ip_set_list
 	 * and check clashing.
 	 */
-	ret = find_free_id(set->name, &index, &clash);
+	ret = find_free_id(inst, set->name, &index, &clash);
 	if (ret == -EEXIST) {
 		/* If this is the same set and requested, ignore error */
 		if ((flags & IPSET_FLAG_EXIST) &&
@@ -867,9 +901,9 @@ ip_set_create(struct sock *ctnl, struct sk_buff *skb,
 		goto cleanup;
 	} else if (ret == -IPSET_ERR_MAX_SETS) {
 		struct ip_set **list, **tmp;
-		ip_set_id_t i = ip_set_max + IP_SET_INC;
+		ip_set_id_t i = inst->ip_set_max + IP_SET_INC;
 
-		if (i < ip_set_max || i == IPSET_INVALID_ID)
+		if (i < inst->ip_set_max || i == IPSET_INVALID_ID)
 			/* Wraparound */
 			goto cleanup;
 
@@ -877,14 +911,14 @@ ip_set_create(struct sock *ctnl, struct sk_buff *skb,
 		if (!list)
 			goto cleanup;
 		/* nfnl mutex is held, both lists are valid */
-		tmp = nfnl_dereference(ip_set_list);
-		memcpy(list, tmp, sizeof(struct ip_set *) * ip_set_max);
-		rcu_assign_pointer(ip_set_list, list);
+		tmp = nfnl_dereference(inst->ip_set_list);
+		memcpy(list, tmp, sizeof(struct ip_set *) * inst->ip_set_max);
+		rcu_assign_pointer(inst->ip_set_list, list);
 		/* Make sure all current packets have passed through */
 		synchronize_net();
 		/* Use new list */
-		index = ip_set_max;
-		ip_set_max = i;
+		index = inst->ip_set_max;
+		inst->ip_set_max = i;
 		kfree(tmp);
 		ret = 0;
 	} else if (ret)
@@ -894,7 +928,7 @@ ip_set_create(struct sock *ctnl, struct sk_buff *skb,
 	 * Finally! Add our shiny new set to the list, and be done.
 	 */
 	pr_debug("create: '%s' created with index %u!\n", set->name, index);
-	nfnl_set(index) = set;
+	nfnl_set(inst, index) = set;
 
 	return ret;
 
@@ -917,12 +951,12 @@ ip_set_setname_policy[IPSET_ATTR_CMD_MAX + 1] = {
 };
 
 static void
-ip_set_destroy_set(ip_set_id_t index)
+ip_set_destroy_set(struct ip_set_net *inst, ip_set_id_t index)
 {
-	struct ip_set *set = nfnl_set(index);
+	struct ip_set *set = nfnl_set(inst, index);
 
 	pr_debug("set: %s\n",  set->name);
-	nfnl_set(index) = NULL;
+	nfnl_set(inst, index) = NULL;
 
 	/* Must call it without holding any lock */
 	set->variant->destroy(set);
@@ -935,6 +969,7 @@ ip_set_destroy(struct sock *ctnl, struct sk_buff *skb,
 	       const struct nlmsghdr *nlh,
 	       const struct nlattr * const attr[])
 {
+	struct ip_set_net *inst = ip_set_pernet(sock_net(ctnl));
 	struct ip_set *s;
 	ip_set_id_t i;
 	int ret = 0;
@@ -954,21 +989,22 @@ ip_set_destroy(struct sock *ctnl, struct sk_buff *skb,
 	 */
 	read_lock_bh(&ip_set_ref_lock);
 	if (!attr[IPSET_ATTR_SETNAME]) {
-		for (i = 0; i < ip_set_max; i++) {
-			s = nfnl_set(i);
+		for (i = 0; i < inst->ip_set_max; i++) {
+			s = nfnl_set(inst, i);
 			if (s != NULL && s->ref) {
 				ret = -IPSET_ERR_BUSY;
 				goto out;
 			}
 		}
 		read_unlock_bh(&ip_set_ref_lock);
-		for (i = 0; i < ip_set_max; i++) {
-			s = nfnl_set(i);
+		for (i = 0; i < inst->ip_set_max; i++) {
+			s = nfnl_set(inst, i);
 			if (s != NULL)
-				ip_set_destroy_set(i);
+				ip_set_destroy_set(inst, i);
 		}
 	} else {
-		s = find_set_and_id(nla_data(attr[IPSET_ATTR_SETNAME]), &i);
+		s = find_set_and_id(inst, nla_data(attr[IPSET_ATTR_SETNAME]),
+				    &i);
 		if (s == NULL) {
 			ret = -ENOENT;
 			goto out;
@@ -978,7 +1014,7 @@ ip_set_destroy(struct sock *ctnl, struct sk_buff *skb,
 		}
 		read_unlock_bh(&ip_set_ref_lock);
 
-		ip_set_destroy_set(i);
+		ip_set_destroy_set(inst, i);
 	}
 	return 0;
 out:
@@ -1003,6 +1039,7 @@ ip_set_flush(struct sock *ctnl, struct sk_buff *skb,
 	     const struct nlmsghdr *nlh,
 	     const struct nlattr * const attr[])
 {
+	struct ip_set_net *inst = ip_set_pernet(sock_net(ctnl));
 	struct ip_set *s;
 	ip_set_id_t i;
 
@@ -1010,13 +1047,13 @@ ip_set_flush(struct sock *ctnl, struct sk_buff *skb,
 		return -IPSET_ERR_PROTOCOL;
 
 	if (!attr[IPSET_ATTR_SETNAME]) {
-		for (i = 0; i < ip_set_max; i++) {
-			s = nfnl_set(i);
+		for (i = 0; i < inst->ip_set_max; i++) {
+			s = nfnl_set(inst, i);
 			if (s != NULL)
 				ip_set_flush_set(s);
 		}
 	} else {
-		s = find_set(nla_data(attr[IPSET_ATTR_SETNAME]));
+		s = find_set(inst, nla_data(attr[IPSET_ATTR_SETNAME]));
 		if (s == NULL)
 			return -ENOENT;
 
@@ -1042,6 +1079,7 @@ ip_set_rename(struct sock *ctnl, struct sk_buff *skb,
 	      const struct nlmsghdr *nlh,
 	      const struct nlattr * const attr[])
 {
+	struct ip_set_net *inst = ip_set_pernet(sock_net(ctnl));
 	struct ip_set *set, *s;
 	const char *name2;
 	ip_set_id_t i;
@@ -1052,7 +1090,7 @@ ip_set_rename(struct sock *ctnl, struct sk_buff *skb,
 		     attr[IPSET_ATTR_SETNAME2] == NULL))
 		return -IPSET_ERR_PROTOCOL;
 
-	set = find_set(nla_data(attr[IPSET_ATTR_SETNAME]));
+	set = find_set(inst, nla_data(attr[IPSET_ATTR_SETNAME]));
 	if (set == NULL)
 		return -ENOENT;
 
@@ -1063,8 +1101,8 @@ ip_set_rename(struct sock *ctnl, struct sk_buff *skb,
 	}
 
 	name2 = nla_data(attr[IPSET_ATTR_SETNAME2]);
-	for (i = 0; i < ip_set_max; i++) {
-		s = nfnl_set(i);
+	for (i = 0; i < inst->ip_set_max; i++) {
+		s = nfnl_set(inst, i);
 		if (s != NULL && STREQ(s->name, name2)) {
 			ret = -IPSET_ERR_EXIST_SETNAME2;
 			goto out;
@@ -1091,6 +1129,7 @@ ip_set_swap(struct sock *ctnl, struct sk_buff *skb,
 	    const struct nlmsghdr *nlh,
 	    const struct nlattr * const attr[])
 {
+	struct ip_set_net *inst = ip_set_pernet(sock_net(ctnl));
 	struct ip_set *from, *to;
 	ip_set_id_t from_id, to_id;
 	char from_name[IPSET_MAXNAMELEN];
@@ -1100,11 +1139,13 @@ ip_set_swap(struct sock *ctnl, struct sk_buff *skb,
 		     attr[IPSET_ATTR_SETNAME2] == NULL))
 		return -IPSET_ERR_PROTOCOL;
 
-	from = find_set_and_id(nla_data(attr[IPSET_ATTR_SETNAME]), &from_id);
+	from = find_set_and_id(inst, nla_data(attr[IPSET_ATTR_SETNAME]),
+			       &from_id);
 	if (from == NULL)
 		return -ENOENT;
 
-	to = find_set_and_id(nla_data(attr[IPSET_ATTR_SETNAME2]), &to_id);
+	to = find_set_and_id(inst, nla_data(attr[IPSET_ATTR_SETNAME2]),
+			     &to_id);
 	if (to == NULL)
 		return -IPSET_ERR_EXIST_SETNAME2;
 
@@ -1121,8 +1162,8 @@ ip_set_swap(struct sock *ctnl, struct sk_buff *skb,
 
 	write_lock_bh(&ip_set_ref_lock);
 	swap(from->ref, to->ref);
-	nfnl_set(from_id) = to;
-	nfnl_set(to_id) = from;
+	nfnl_set(inst, from_id) = to;
+	nfnl_set(inst, to_id) = from;
 	write_unlock_bh(&ip_set_ref_lock);
 
 	return 0;
@@ -1141,9 +1182,10 @@ ip_set_swap(struct sock *ctnl, struct sk_buff *skb,
 static int
 ip_set_dump_done(struct netlink_callback *cb)
 {
+	struct ip_set_net *inst = (struct ip_set_net *)cb->data;
 	if (cb->args[2]) {
-		pr_debug("release set %s\n", nfnl_set(cb->args[1])->name);
-		ip_set_put_byindex((ip_set_id_t) cb->args[1]);
+		pr_debug("release set %s\n", nfnl_set(inst, cb->args[1])->name);
+		__ip_set_put_byindex(inst, (ip_set_id_t) cb->args[1]);
 	}
 	return 0;
 }
@@ -1169,6 +1211,7 @@ dump_init(struct netlink_callback *cb)
 	struct nlattr *attr = (void *)nlh + min_len;
 	u32 dump_type;
 	ip_set_id_t index;
+	struct ip_set_net *inst = (struct ip_set_net *)cb->data;
 
 	/* Second pass, so parser can't fail */
 	nla_parse(cda, IPSET_ATTR_CMD_MAX,
@@ -1182,7 +1225,7 @@ dump_init(struct netlink_callback *cb)
 	if (cda[IPSET_ATTR_SETNAME]) {
 		struct ip_set *set;
 
-		set = find_set_and_id(nla_data(cda[IPSET_ATTR_SETNAME]),
+		set = find_set_and_id(inst, nla_data(cda[IPSET_ATTR_SETNAME]),
 				      &index);
 		if (set == NULL)
 			return -ENOENT;
@@ -1210,6 +1253,7 @@ ip_set_dump_start(struct sk_buff *skb, struct netlink_callback *cb)
 	unsigned int flags = NETLINK_CB(cb->skb).portid ? NLM_F_MULTI : 0;
 	u32 dump_type, dump_flags;
 	int ret = 0;
+	struct ip_set_net *inst = (struct ip_set_net *)cb->data;
 
 	if (!cb->args[0]) {
 		ret = dump_init(cb);
@@ -1223,18 +1267,18 @@ ip_set_dump_start(struct sk_buff *skb, struct netlink_callback *cb)
 		}
 	}
 
-	if (cb->args[1] >= ip_set_max)
+	if (cb->args[1] >= inst->ip_set_max)
 		goto out;
 
 	dump_type = DUMP_TYPE(cb->args[0]);
 	dump_flags = DUMP_FLAGS(cb->args[0]);
-	max = dump_type == DUMP_ONE ? cb->args[1] + 1 : ip_set_max;
+	max = dump_type == DUMP_ONE ? cb->args[1] + 1 : inst->ip_set_max;
 dump_last:
 	pr_debug("args[0]: %u %u args[1]: %ld\n",
 		 dump_type, dump_flags, cb->args[1]);
 	for (; cb->args[1] < max; cb->args[1]++) {
 		index = (ip_set_id_t) cb->args[1];
-		set = nfnl_set(index);
+		set = nfnl_set(inst, index);
 		if (set == NULL) {
 			if (dump_type == DUMP_ONE) {
 				ret = -ENOENT;
@@ -1312,8 +1356,8 @@ next_set:
 release_refcount:
 	/* If there was an error or set is done, release set */
 	if (ret || !cb->args[2]) {
-		pr_debug("release set %s\n", nfnl_set(index)->name);
-		ip_set_put_byindex(index);
+		pr_debug("release set %s\n", nfnl_set(inst, index)->name);
+		__ip_set_put_byindex(inst, index);
 		cb->args[2] = 0;
 	}
 out:
@@ -1331,6 +1375,8 @@ ip_set_dump(struct sock *ctnl, struct sk_buff *skb,
 	    const struct nlmsghdr *nlh,
 	    const struct nlattr * const attr[])
 {
+	struct ip_set_net *inst = ip_set_pernet(sock_net(ctnl));
+
 	if (unlikely(protocol_failed(attr)))
 		return -IPSET_ERR_PROTOCOL;
 
@@ -1338,6 +1384,7 @@ ip_set_dump(struct sock *ctnl, struct sk_buff *skb,
 		struct netlink_dump_control c = {
 			.dump = ip_set_dump_start,
 			.done = ip_set_dump_done,
+			.data = (void *)inst
 		};
 		return netlink_dump_start(ctnl, skb, nlh, &c);
 	}
@@ -1416,6 +1463,7 @@ ip_set_uadd(struct sock *ctnl, struct sk_buff *skb,
 	    const struct nlmsghdr *nlh,
 	    const struct nlattr * const attr[])
 {
+	struct ip_set_net *inst = ip_set_pernet(sock_net(ctnl));
 	struct ip_set *set;
 	struct nlattr *tb[IPSET_ATTR_ADT_MAX+1] = {};
 	const struct nlattr *nla;
@@ -1434,7 +1482,7 @@ ip_set_uadd(struct sock *ctnl, struct sk_buff *skb,
 		       attr[IPSET_ATTR_LINENO] == NULL))))
 		return -IPSET_ERR_PROTOCOL;
 
-	set = find_set(nla_data(attr[IPSET_ATTR_SETNAME]));
+	set = find_set(inst, nla_data(attr[IPSET_ATTR_SETNAME]));
 	if (set == NULL)
 		return -ENOENT;
 
@@ -1470,6 +1518,7 @@ ip_set_udel(struct sock *ctnl, struct sk_buff *skb,
 	    const struct nlmsghdr *nlh,
 	    const struct nlattr * const attr[])
 {
+	struct ip_set_net *inst = ip_set_pernet(sock_net(ctnl));
 	struct ip_set *set;
 	struct nlattr *tb[IPSET_ATTR_ADT_MAX+1] = {};
 	const struct nlattr *nla;
@@ -1488,7 +1537,7 @@ ip_set_udel(struct sock *ctnl, struct sk_buff *skb,
 		       attr[IPSET_ATTR_LINENO] == NULL))))
 		return -IPSET_ERR_PROTOCOL;
 
-	set = find_set(nla_data(attr[IPSET_ATTR_SETNAME]));
+	set = find_set(inst, nla_data(attr[IPSET_ATTR_SETNAME]));
 	if (set == NULL)
 		return -ENOENT;
 
@@ -1524,6 +1573,7 @@ ip_set_utest(struct sock *ctnl, struct sk_buff *skb,
 	     const struct nlmsghdr *nlh,
 	     const struct nlattr * const attr[])
 {
+	struct ip_set_net *inst = ip_set_pernet(sock_net(ctnl));
 	struct ip_set *set;
 	struct nlattr *tb[IPSET_ATTR_ADT_MAX+1] = {};
 	int ret = 0;
@@ -1534,7 +1584,7 @@ ip_set_utest(struct sock *ctnl, struct sk_buff *skb,
 		     !flag_nested(attr[IPSET_ATTR_DATA])))
 		return -IPSET_ERR_PROTOCOL;
 
-	set = find_set(nla_data(attr[IPSET_ATTR_SETNAME]));
+	set = find_set(inst, nla_data(attr[IPSET_ATTR_SETNAME]));
 	if (set == NULL)
 		return -ENOENT;
 
@@ -1559,6 +1609,7 @@ ip_set_header(struct sock *ctnl, struct sk_buff *skb,
 	      const struct nlmsghdr *nlh,
 	      const struct nlattr * const attr[])
 {
+	struct ip_set_net *inst = ip_set_pernet(sock_net(ctnl));
 	const struct ip_set *set;
 	struct sk_buff *skb2;
 	struct nlmsghdr *nlh2;
@@ -1568,7 +1619,7 @@ ip_set_header(struct sock *ctnl, struct sk_buff *skb,
 		     attr[IPSET_ATTR_SETNAME] == NULL))
 		return -IPSET_ERR_PROTOCOL;
 
-	set = find_set(nla_data(attr[IPSET_ATTR_SETNAME]));
+	set = find_set(inst, nla_data(attr[IPSET_ATTR_SETNAME]));
 	if (set == NULL)
 		return -ENOENT;
 
@@ -1793,8 +1844,10 @@ ip_set_sockfn_get(struct sock *sk, int optval, void __user *user, int *len)
 	unsigned int *op;
 	void *data;
 	int copylen = *len, ret = 0;
+	struct net *net = sock_net(sk);
+	struct ip_set_net *inst = ip_set_pernet(net);
 
-	if (!ns_capable(sock_net(sk)->user_ns, CAP_NET_ADMIN))
+	if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
 		return -EPERM;
 	if (optval != SO_IP_SET)
 		return -EBADF;
@@ -1843,7 +1896,7 @@ ip_set_sockfn_get(struct sock *sk, int optval, void __user *user, int *len)
 		}
 		req_get->set.name[IPSET_MAXNAMELEN - 1] = '\0';
 		nfnl_lock(NFNL_SUBSYS_IPSET);
-		find_set_and_id(req_get->set.name, &id);
+		find_set_and_id(inst, req_get->set.name, &id);
 		req_get->set.index = id;
 		nfnl_unlock(NFNL_SUBSYS_IPSET);
 		goto copy;
@@ -1858,10 +1911,10 @@ ip_set_sockfn_get(struct sock *sk, int optval, void __user *user, int *len)
 		}
 		req_get->set.name[IPSET_MAXNAMELEN - 1] = '\0';
 		nfnl_lock(NFNL_SUBSYS_IPSET);
-		find_set_and_id(req_get->set.name, &id);
+		find_set_and_id(inst, req_get->set.name, &id);
 		req_get->set.index = id;
 		if (id != IPSET_INVALID_ID)
-			req_get->family = nfnl_set(id)->family;
+			req_get->family = nfnl_set(inst, id)->family;
 		nfnl_unlock(NFNL_SUBSYS_IPSET);
 		goto copy;
 	}
@@ -1870,12 +1923,12 @@ ip_set_sockfn_get(struct sock *sk, int optval, void __user *user, int *len)
 		struct ip_set *set;
 
 		if (*len != sizeof(struct ip_set_req_get_set) ||
-		    req_get->set.index >= ip_set_max) {
+		    req_get->set.index >= inst->ip_set_max) {
 			ret = -EINVAL;
 			goto done;
 		}
 		nfnl_lock(NFNL_SUBSYS_IPSET);
-		set = nfnl_set(req_get->set.index);
+		set = nfnl_set(inst, req_get->set.index);
 		strncpy(req_get->set.name, set ? set->name : "",
 			IPSET_MAXNAMELEN);
 		nfnl_unlock(NFNL_SUBSYS_IPSET);
@@ -1904,49 +1957,82 @@ static struct nf_sockopt_ops so_set __read_mostly = {
 	.owner		= THIS_MODULE,
 };
 
-static int __init
-ip_set_init(void)
+static int __net_init
+ip_set_net_init(struct net *net)
 {
+	struct ip_set_net *inst = ip_set_pernet(net);
+
 	struct ip_set **list;
-	int ret;
 
-	if (max_sets)
-		ip_set_max = max_sets;
-	if (ip_set_max >= IPSET_INVALID_ID)
-		ip_set_max = IPSET_INVALID_ID - 1;
+	inst->ip_set_max = max_sets ? max_sets : CONFIG_IP_SET_MAX;
+	if (inst->ip_set_max >= IPSET_INVALID_ID)
+		inst->ip_set_max = IPSET_INVALID_ID - 1;
 
-	list = kzalloc(sizeof(struct ip_set *) * ip_set_max, GFP_KERNEL);
+	list = kzalloc(sizeof(struct ip_set *) * inst->ip_set_max, GFP_KERNEL);
 	if (!list)
 		return -ENOMEM;
+	inst->is_deleted = 0;
+	rcu_assign_pointer(inst->ip_set_list, list);
+	pr_notice("ip_set: protocol %u\n", IPSET_PROTOCOL);
+	return 0;
+}
+
+static void __net_exit
+ip_set_net_exit(struct net *net)
+{
+	struct ip_set_net *inst = ip_set_pernet(net);
+
+	struct ip_set *set = NULL;
+	ip_set_id_t i;
+
+	inst->is_deleted = 1; /* flag for ip_set_nfnl_put */
+
+	for (i = 0; i < inst->ip_set_max; i++) {
+		set = nfnl_set(inst, i);
+		if (set != NULL)
+			ip_set_destroy_set(inst, i);
+	}
+	kfree(rcu_dereference_protected(inst->ip_set_list, 1));
+}
+
+static struct pernet_operations ip_set_net_ops = {
+	.init	= ip_set_net_init,
+	.exit   = ip_set_net_exit,
+	.id	= &ip_set_net_id,
+	.size	= sizeof(struct ip_set_net)
+};
+
 
-	rcu_assign_pointer(ip_set_list, list);
-	ret = nfnetlink_subsys_register(&ip_set_netlink_subsys);
+static int __init
+ip_set_init(void)
+{
+	int ret = nfnetlink_subsys_register(&ip_set_netlink_subsys);
 	if (ret != 0) {
 		pr_err("ip_set: cannot register with nfnetlink.\n");
-		kfree(list);
 		return ret;
 	}
 	ret = nf_register_sockopt(&so_set);
 	if (ret != 0) {
 		pr_err("SO_SET registry failed: %d\n", ret);
 		nfnetlink_subsys_unregister(&ip_set_netlink_subsys);
-		kfree(list);
 		return ret;
 	}
-
-	pr_notice("ip_set: protocol %u\n", IPSET_PROTOCOL);
+	ret = register_pernet_subsys(&ip_set_net_ops);
+	if (ret) {
+		pr_err("ip_set: cannot register pernet_subsys.\n");
+		nf_unregister_sockopt(&so_set);
+		nfnetlink_subsys_unregister(&ip_set_netlink_subsys);
+		return ret;
+	}
 	return 0;
 }
 
 static void __exit
 ip_set_fini(void)
 {
-	struct ip_set **list = rcu_dereference_protected(ip_set_list, 1);
-
-	/* There can't be any existing set */
+	unregister_pernet_subsys(&ip_set_net_ops);
 	nf_unregister_sockopt(&so_set);
 	nfnetlink_subsys_unregister(&ip_set_netlink_subsys);
-	kfree(list);
 	pr_debug("these are the famous last words\n");
 }
 
diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index b4add206c603..6a80dbd30df7 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -1011,7 +1011,8 @@ static const struct ip_set_type_variant mtype_variant = {
 
 #ifdef IP_SET_EMIT_CREATE
 static int
-IPSET_TOKEN(HTYPE, _create)(struct ip_set *set, struct nlattr *tb[], u32 flags)
+IPSET_TOKEN(HTYPE, _create)(struct net *net, struct ip_set *set,
+			    struct nlattr *tb[], u32 flags)
 {
 	u32 hashsize = IPSET_DEFAULT_HASHSIZE, maxelem = IPSET_DEFAULT_MAXELEM;
 	u8 hbits;
diff --git a/net/netfilter/ipset/ip_set_list_set.c b/net/netfilter/ipset/ip_set_list_set.c
index ba4232e451f4..ec6f6d15dded 100644
--- a/net/netfilter/ipset/ip_set_list_set.c
+++ b/net/netfilter/ipset/ip_set_list_set.c
@@ -39,6 +39,7 @@ struct set_adt_elem {
 struct list_set {
 	u32 size;		/* size of set list array */
 	struct timer_list gc;	/* garbage collection */
+	struct net *net;	/* namespace */
 	struct set_elem members[0]; /* the set members */
 };
 
@@ -171,7 +172,7 @@ list_set_add(struct ip_set *set, u32 i, struct set_adt_elem *d,
 	if (e->id != IPSET_INVALID_ID) {
 		if (i == map->size - 1) {
 			/* Last element replaced: e.g. add new,before,last */
-			ip_set_put_byindex(e->id);
+			ip_set_put_byindex(map->net, e->id);
 			ip_set_ext_destroy(set, e);
 		} else {
 			struct set_elem *x = list_set_elem(set, map,
@@ -179,7 +180,7 @@ list_set_add(struct ip_set *set, u32 i, struct set_adt_elem *d,
 
 			/* Last element pushed off */
 			if (x->id != IPSET_INVALID_ID) {
-				ip_set_put_byindex(x->id);
+				ip_set_put_byindex(map->net, x->id);
 				ip_set_ext_destroy(set, x);
 			}
 			memmove(list_set_elem(set, map, i + 1), e,
@@ -205,7 +206,7 @@ list_set_del(struct ip_set *set, u32 i)
 	struct list_set *map = set->data;
 	struct set_elem *e = list_set_elem(set, map, i);
 
-	ip_set_put_byindex(e->id);
+	ip_set_put_byindex(map->net, e->id);
 	ip_set_ext_destroy(set, e);
 
 	if (i < map->size - 1)
@@ -307,7 +308,7 @@ list_set_uadd(struct ip_set *set, void *value, const struct ip_set_ext *ext,
 		if (SET_WITH_COMMENT(set))
 			ip_set_init_comment(ext_comment(e, set), ext);
 		/* Set is already added to the list */
-		ip_set_put_byindex(d->id);
+		ip_set_put_byindex(map->net, d->id);
 		return 0;
 	}
 insert:
@@ -366,6 +367,7 @@ static int
 list_set_uadt(struct ip_set *set, struct nlattr *tb[],
 	      enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
 {
+	struct list_set *map = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
 	struct set_adt_elem e = { .refid = IPSET_INVALID_ID };
 	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
@@ -385,7 +387,7 @@ list_set_uadt(struct ip_set *set, struct nlattr *tb[],
 	ret = ip_set_get_extensions(set, tb, &ext);
 	if (ret)
 		return ret;
-	e.id = ip_set_get_byname(nla_data(tb[IPSET_ATTR_NAME]), &s);
+	e.id = ip_set_get_byname(map->net, nla_data(tb[IPSET_ATTR_NAME]), &s);
 	if (e.id == IPSET_INVALID_ID)
 		return -IPSET_ERR_NAME;
 	/* "Loop detection" */
@@ -405,7 +407,8 @@ list_set_uadt(struct ip_set *set, struct nlattr *tb[],
 	}
 
 	if (tb[IPSET_ATTR_NAMEREF]) {
-		e.refid = ip_set_get_byname(nla_data(tb[IPSET_ATTR_NAMEREF]),
+		e.refid = ip_set_get_byname(map->net,
+					    nla_data(tb[IPSET_ATTR_NAMEREF]),
 					    &s);
 		if (e.refid == IPSET_INVALID_ID) {
 			ret = -IPSET_ERR_NAMEREF;
@@ -421,9 +424,9 @@ list_set_uadt(struct ip_set *set, struct nlattr *tb[],
 
 finish:
 	if (e.refid != IPSET_INVALID_ID)
-		ip_set_put_byindex(e.refid);
+		ip_set_put_byindex(map->net, e.refid);
 	if (adt != IPSET_ADD || ret)
-		ip_set_put_byindex(e.id);
+		ip_set_put_byindex(map->net, e.id);
 
 	return ip_set_eexist(ret, flags) ? 0 : ret;
 }
@@ -438,7 +441,7 @@ list_set_flush(struct ip_set *set)
 	for (i = 0; i < map->size; i++) {
 		e = list_set_elem(set, map, i);
 		if (e->id != IPSET_INVALID_ID) {
-			ip_set_put_byindex(e->id);
+			ip_set_put_byindex(map->net, e->id);
 			ip_set_ext_destroy(set, e);
 			e->id = IPSET_INVALID_ID;
 		}
@@ -510,7 +513,7 @@ list_set_list(const struct ip_set *set,
 				goto nla_put_failure;
 		}
 		if (nla_put_string(skb, IPSET_ATTR_NAME,
-				   ip_set_name_byindex(e->id)))
+				   ip_set_name_byindex(map->net, e->id)))
 			goto nla_put_failure;
 		if (ip_set_put_extensions(skb, set, e, true))
 			goto nla_put_failure;
@@ -587,7 +590,7 @@ list_set_gc_init(struct ip_set *set, void (*gc)(unsigned long ul_set))
 /* Create list:set type of sets */
 
 static bool
-init_list_set(struct ip_set *set, u32 size)
+init_list_set(struct net *net, struct ip_set *set, u32 size)
 {
 	struct list_set *map;
 	struct set_elem *e;
@@ -598,6 +601,7 @@ init_list_set(struct ip_set *set, u32 size)
 		return false;
 
 	map->size = size;
+	map->net = net;
 	set->data = map;
 
 	for (i = 0; i < size; i++) {
@@ -609,7 +613,8 @@ init_list_set(struct ip_set *set, u32 size)
 }
 
 static int
-list_set_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
+list_set_create(struct net *net, struct ip_set *set, struct nlattr *tb[],
+		u32 flags)
 {
 	u32 size = IP_SET_LIST_DEFAULT_SIZE;
 
@@ -625,7 +630,7 @@ list_set_create(struct ip_set *set, struct nlattr *tb[], u32 flags)
 
 	set->variant = &set_variant;
 	set->dsize = ip_set_elem_len(set, tb, sizeof(struct set_elem));
-	if (!init_list_set(set, size))
+	if (!init_list_set(net, set, size))
 		return -ENOMEM;
 	if (tb[IPSET_ATTR_TIMEOUT]) {
 		set->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
diff --git a/net/netfilter/xt_set.c b/net/netfilter/xt_set.c
index 2095488684ff..e7c4e0e01ff5 100644
--- a/net/netfilter/xt_set.c
+++ b/net/netfilter/xt_set.c
@@ -81,7 +81,7 @@ set_match_v0_checkentry(const struct xt_mtchk_param *par)
 	struct xt_set_info_match_v0 *info = par->matchinfo;
 	ip_set_id_t index;
 
-	index = ip_set_nfnl_get_byindex(info->match_set.index);
+	index = ip_set_nfnl_get_byindex(par->net, info->match_set.index);
 
 	if (index == IPSET_INVALID_ID) {
 		pr_warning("Cannot find set indentified by id %u to match\n",
@@ -91,7 +91,7 @@ set_match_v0_checkentry(const struct xt_mtchk_param *par)
 	if (info->match_set.u.flags[IPSET_DIM_MAX-1] != 0) {
 		pr_warning("Protocol error: set match dimension "
 			   "is over the limit!\n");
-		ip_set_nfnl_put(info->match_set.index);
+		ip_set_nfnl_put(par->net, info->match_set.index);
 		return -ERANGE;
 	}
 
@@ -106,7 +106,7 @@ set_match_v0_destroy(const struct xt_mtdtor_param *par)
 {
 	struct xt_set_info_match_v0 *info = par->matchinfo;
 
-	ip_set_nfnl_put(info->match_set.index);
+	ip_set_nfnl_put(par->net, info->match_set.index);
 }
 
 /* Revision 1 match */
@@ -131,7 +131,7 @@ set_match_v1_checkentry(const struct xt_mtchk_param *par)
 	struct xt_set_info_match_v1 *info = par->matchinfo;
 	ip_set_id_t index;
 
-	index = ip_set_nfnl_get_byindex(info->match_set.index);
+	index = ip_set_nfnl_get_byindex(par->net, info->match_set.index);
 
 	if (index == IPSET_INVALID_ID) {
 		pr_warning("Cannot find set indentified by id %u to match\n",
@@ -141,7 +141,7 @@ set_match_v1_checkentry(const struct xt_mtchk_param *par)
 	if (info->match_set.dim > IPSET_DIM_MAX) {
 		pr_warning("Protocol error: set match dimension "
 			   "is over the limit!\n");
-		ip_set_nfnl_put(info->match_set.index);
+		ip_set_nfnl_put(par->net, info->match_set.index);
 		return -ERANGE;
 	}
 
@@ -153,7 +153,7 @@ set_match_v1_destroy(const struct xt_mtdtor_param *par)
 {
 	struct xt_set_info_match_v1 *info = par->matchinfo;
 
-	ip_set_nfnl_put(info->match_set.index);
+	ip_set_nfnl_put(par->net, info->match_set.index);
 }
 
 /* Revision 3 match */
@@ -228,7 +228,7 @@ set_target_v0_checkentry(const struct xt_tgchk_param *par)
 	ip_set_id_t index;
 
 	if (info->add_set.index != IPSET_INVALID_ID) {
-		index = ip_set_nfnl_get_byindex(info->add_set.index);
+		index = ip_set_nfnl_get_byindex(par->net, info->add_set.index);
 		if (index == IPSET_INVALID_ID) {
 			pr_warning("Cannot find add_set index %u as target\n",
 				   info->add_set.index);
@@ -237,12 +237,12 @@ set_target_v0_checkentry(const struct xt_tgchk_param *par)
 	}
 
 	if (info->del_set.index != IPSET_INVALID_ID) {
-		index = ip_set_nfnl_get_byindex(info->del_set.index);
+		index = ip_set_nfnl_get_byindex(par->net, info->del_set.index);
 		if (index == IPSET_INVALID_ID) {
 			pr_warning("Cannot find del_set index %u as target\n",
 				   info->del_set.index);
 			if (info->add_set.index != IPSET_INVALID_ID)
-				ip_set_nfnl_put(info->add_set.index);
+				ip_set_nfnl_put(par->net, info->add_set.index);
 			return -ENOENT;
 		}
 	}
@@ -251,9 +251,9 @@ set_target_v0_checkentry(const struct xt_tgchk_param *par)
 		pr_warning("Protocol error: SET target dimension "
 			   "is over the limit!\n");
 		if (info->add_set.index != IPSET_INVALID_ID)
-			ip_set_nfnl_put(info->add_set.index);
+			ip_set_nfnl_put(par->net, info->add_set.index);
 		if (info->del_set.index != IPSET_INVALID_ID)
-			ip_set_nfnl_put(info->del_set.index);
+			ip_set_nfnl_put(par->net, info->del_set.index);
 		return -ERANGE;
 	}
 
@@ -270,9 +270,9 @@ set_target_v0_destroy(const struct xt_tgdtor_param *par)
 	const struct xt_set_info_target_v0 *info = par->targinfo;
 
 	if (info->add_set.index != IPSET_INVALID_ID)
-		ip_set_nfnl_put(info->add_set.index);
+		ip_set_nfnl_put(par->net, info->add_set.index);
 	if (info->del_set.index != IPSET_INVALID_ID)
-		ip_set_nfnl_put(info->del_set.index);
+		ip_set_nfnl_put(par->net, info->del_set.index);
 }
 
 /* Revision 1 target */
@@ -301,7 +301,7 @@ set_target_v1_checkentry(const struct xt_tgchk_param *par)
 	ip_set_id_t index;
 
 	if (info->add_set.index != IPSET_INVALID_ID) {
-		index = ip_set_nfnl_get_byindex(info->add_set.index);
+		index = ip_set_nfnl_get_byindex(par->net, info->add_set.index);
 		if (index == IPSET_INVALID_ID) {
 			pr_warning("Cannot find add_set index %u as target\n",
 				   info->add_set.index);
@@ -310,12 +310,12 @@ set_target_v1_checkentry(const struct xt_tgchk_param *par)
 	}
 
 	if (info->del_set.index != IPSET_INVALID_ID) {
-		index = ip_set_nfnl_get_byindex(info->del_set.index);
+		index = ip_set_nfnl_get_byindex(par->net, info->del_set.index);
 		if (index == IPSET_INVALID_ID) {
 			pr_warning("Cannot find del_set index %u as target\n",
 				   info->del_set.index);
 			if (info->add_set.index != IPSET_INVALID_ID)
-				ip_set_nfnl_put(info->add_set.index);
+				ip_set_nfnl_put(par->net, info->add_set.index);
 			return -ENOENT;
 		}
 	}
@@ -324,9 +324,9 @@ set_target_v1_checkentry(const struct xt_tgchk_param *par)
 		pr_warning("Protocol error: SET target dimension "
 			   "is over the limit!\n");
 		if (info->add_set.index != IPSET_INVALID_ID)
-			ip_set_nfnl_put(info->add_set.index);
+			ip_set_nfnl_put(par->net, info->add_set.index);
 		if (info->del_set.index != IPSET_INVALID_ID)
-			ip_set_nfnl_put(info->del_set.index);
+			ip_set_nfnl_put(par->net, info->del_set.index);
 		return -ERANGE;
 	}
 
@@ -339,9 +339,9 @@ set_target_v1_destroy(const struct xt_tgdtor_param *par)
 	const struct xt_set_info_target_v1 *info = par->targinfo;
 
 	if (info->add_set.index != IPSET_INVALID_ID)
-		ip_set_nfnl_put(info->add_set.index);
+		ip_set_nfnl_put(par->net, info->add_set.index);
 	if (info->del_set.index != IPSET_INVALID_ID)
-		ip_set_nfnl_put(info->del_set.index);
+		ip_set_nfnl_put(par->net, info->del_set.index);
 }
 
 /* Revision 2 target */
diff --git a/net/sched/em_ipset.c b/net/sched/em_ipset.c
index 938b7cbf5627..1ac41d3de5c3 100644
--- a/net/sched/em_ipset.c
+++ b/net/sched/em_ipset.c
@@ -24,11 +24,12 @@ static int em_ipset_change(struct tcf_proto *tp, void *data, int data_len,
 {
 	struct xt_set_info *set = data;
 	ip_set_id_t index;
+	struct net *net = qdisc_dev(tp->q)->nd_net;
 
 	if (data_len != sizeof(*set))
 		return -EINVAL;
 
-	index = ip_set_nfnl_get_byindex(set->index);
+	index = ip_set_nfnl_get_byindex(net, set->index);
 	if (index == IPSET_INVALID_ID)
 		return -ENOENT;
 
@@ -37,7 +38,7 @@ static int em_ipset_change(struct tcf_proto *tp, void *data, int data_len,
 	if (em->data)
 		return 0;
 
-	ip_set_nfnl_put(index);
+	ip_set_nfnl_put(net, index);
 	return -ENOMEM;
 }
 
@@ -45,7 +46,7 @@ static void em_ipset_destroy(struct tcf_proto *p, struct tcf_ematch *em)
 {
 	const struct xt_set_info *set = (const void *) em->data;
 	if (set) {
-		ip_set_nfnl_put(set->index);
+		ip_set_nfnl_put(qdisc_dev(p->q)->nd_net, set->index);
 		kfree((void *) em->data);
 	}
 }
-- 
cgit 


From 7c3ad056ef79fd10f5f111c807ccbd9fa9068c7f Mon Sep 17 00:00:00 2001
From: Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>
Date: Sat, 28 Sep 2013 20:33:23 +0200
Subject: netfilter: ipset: Add hash:net,port,net module to kernel.

This adds a new set that provides similar functionality to ip,port,net
but permits arbitrary size subnets for both the first and last
parameter.

Signed-off-by: Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 net/netfilter/ipset/Kconfig                  |   9 +
 net/netfilter/ipset/Makefile                 |   1 +
 net/netfilter/ipset/ip_set_hash_netportnet.c | 588 +++++++++++++++++++++++++++
 3 files changed, 598 insertions(+)
 create mode 100644 net/netfilter/ipset/ip_set_hash_netportnet.c

diff --git a/net/netfilter/ipset/Kconfig b/net/netfilter/ipset/Kconfig
index 9119f658a69b..a2d6263b6c64 100644
--- a/net/netfilter/ipset/Kconfig
+++ b/net/netfilter/ipset/Kconfig
@@ -90,6 +90,15 @@ config IP_SET_HASH_IPPORTNET
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
+config IP_SET_HASH_NETPORTNET
+	tristate "hash:net,port,net set support"
+	depends on IP_SET
+	help
+	  This option adds the hash:net,port,net set type support, by which
+	  one can store two IPv4/IPv6 subnets, and a protocol/port in a set.
+
+	  To compile it as a module, choose M here.  If unsure, say N.
+
 config IP_SET_HASH_NET
 	tristate "hash:net set support"
 	depends on IP_SET
diff --git a/net/netfilter/ipset/Makefile b/net/netfilter/ipset/Makefile
index 43eef7a19e3c..44b2d38476fa 100644
--- a/net/netfilter/ipset/Makefile
+++ b/net/netfilter/ipset/Makefile
@@ -21,6 +21,7 @@ obj-$(CONFIG_IP_SET_HASH_NET) += ip_set_hash_net.o
 obj-$(CONFIG_IP_SET_HASH_NETPORT) += ip_set_hash_netport.o
 obj-$(CONFIG_IP_SET_HASH_NETIFACE) += ip_set_hash_netiface.o
 obj-$(CONFIG_IP_SET_HASH_NETNET) += ip_set_hash_netnet.o
+obj-$(CONFIG_IP_SET_HASH_NETPORTNET) += ip_set_hash_netportnet.o
 
 # list types
 obj-$(CONFIG_IP_SET_LIST_SET) += ip_set_list_set.o
diff --git a/net/netfilter/ipset/ip_set_hash_netportnet.c b/net/netfilter/ipset/ip_set_hash_netportnet.c
new file mode 100644
index 000000000000..363fab933d48
--- /dev/null
+++ b/net/netfilter/ipset/ip_set_hash_netportnet.c
@@ -0,0 +1,588 @@
+/* Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/* Kernel module implementing an IP set type: the hash:ip,port,net type */
+
+#include <linux/jhash.h>
+#include <linux/module.h>
+#include <linux/ip.h>
+#include <linux/skbuff.h>
+#include <linux/errno.h>
+#include <linux/random.h>
+#include <net/ip.h>
+#include <net/ipv6.h>
+#include <net/netlink.h>
+#include <net/tcp.h>
+
+#include <linux/netfilter.h>
+#include <linux/netfilter/ipset/pfxlen.h>
+#include <linux/netfilter/ipset/ip_set.h>
+#include <linux/netfilter/ipset/ip_set_getport.h>
+#include <linux/netfilter/ipset/ip_set_hash.h>
+
+#define IPSET_TYPE_REV_MIN	0
+#define IPSET_TYPE_REV_MAX	0 /* Comments support added */
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Oliver Smith <oliver@8.c.9.b.0.7.4.0.1.0.0.2.ip6.arpa>");
+IP_SET_MODULE_DESC("hash:net,port,net", IPSET_TYPE_REV_MIN, IPSET_TYPE_REV_MAX);
+MODULE_ALIAS("ip_set_hash:net,port,net");
+
+/* Type specific function prefix */
+#define HTYPE		hash_netportnet
+#define IP_SET_HASH_WITH_PROTO
+#define IP_SET_HASH_WITH_NETS
+#define IPSET_NET_COUNT 2
+
+/* IPv4 variant */
+
+/* Member elements */
+struct hash_netportnet4_elem {
+	union {
+		__be32 ip[2];
+		__be64 ipcmp;
+	};
+	__be16 port;
+	union {
+		u8 cidr[2];
+		u16 ccmp;
+	};
+	u8 nomatch:1;
+	u8 proto;
+};
+
+/* Common functions */
+
+static inline bool
+hash_netportnet4_data_equal(const struct hash_netportnet4_elem *ip1,
+			   const struct hash_netportnet4_elem *ip2,
+			   u32 *multi)
+{
+	return ip1->ipcmp == ip2->ipcmp &&
+	       ip1->ccmp == ip2->ccmp &&
+	       ip1->port == ip2->port &&
+	       ip1->proto == ip2->proto;
+}
+
+static inline int
+hash_netportnet4_do_data_match(const struct hash_netportnet4_elem *elem)
+{
+	return elem->nomatch ? -ENOTEMPTY : 1;
+}
+
+static inline void
+hash_netportnet4_data_set_flags(struct hash_netportnet4_elem *elem, u32 flags)
+{
+	elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
+}
+
+static inline void
+hash_netportnet4_data_reset_flags(struct hash_netportnet4_elem *elem, u8 *flags)
+{
+	swap(*flags, elem->nomatch);
+}
+
+static inline void
+hash_netportnet4_data_reset_elem(struct hash_netportnet4_elem *elem,
+				struct hash_netportnet4_elem *orig)
+{
+	elem->ip[1] = orig->ip[1];
+}
+
+static inline void
+hash_netportnet4_data_netmask(struct hash_netportnet4_elem *elem,
+			      u8 cidr, bool inner)
+{
+	if (inner) {
+		elem->ip[1] &= ip_set_netmask(cidr);
+		elem->cidr[1] = cidr;
+	} else {
+		elem->ip[0] &= ip_set_netmask(cidr);
+		elem->cidr[0] = cidr;
+	}
+}
+
+static bool
+hash_netportnet4_data_list(struct sk_buff *skb,
+			  const struct hash_netportnet4_elem *data)
+{
+	u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
+
+	if (nla_put_ipaddr4(skb, IPSET_ATTR_IP, data->ip[0]) ||
+	    nla_put_ipaddr4(skb, IPSET_ATTR_IP2, data->ip[1]) ||
+	    nla_put_net16(skb, IPSET_ATTR_PORT, data->port) ||
+	    nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) ||
+	    nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) ||
+	    nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
+	    (flags &&
+	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return 1;
+}
+
+static inline void
+hash_netportnet4_data_next(struct hash_netportnet4_elem *next,
+			  const struct hash_netportnet4_elem *d)
+{
+	next->ipcmp = d->ipcmp;
+	next->port = d->port;
+}
+
+#define MTYPE		hash_netportnet4
+#define PF		4
+#define HOST_MASK	32
+#include "ip_set_hash_gen.h"
+
+static int
+hash_netportnet4_kadt(struct ip_set *set, const struct sk_buff *skb,
+		     const struct xt_action_param *par,
+		     enum ipset_adt adt, struct ip_set_adt_opt *opt)
+{
+	const struct hash_netportnet *h = set->data;
+	ipset_adtfn adtfn = set->variant->adt[adt];
+	struct hash_netportnet4_elem e = {
+		.cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
+		.cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK),
+	};
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
+
+	if (adt == IPSET_TEST)
+		e.ccmp = (HOST_MASK << (sizeof(e.cidr[0]) * 8)) | HOST_MASK;
+
+	if (!ip_set_get_ip4_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
+				 &e.port, &e.proto))
+		return -EINVAL;
+
+	ip4addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0]);
+	ip4addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1]);
+	e.ip[0] &= ip_set_netmask(e.cidr[0]);
+	e.ip[1] &= ip_set_netmask(e.cidr[1]);
+
+	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
+}
+
+static int
+hash_netportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
+		     enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
+{
+	const struct hash_netportnet *h = set->data;
+	ipset_adtfn adtfn = set->variant->adt[adt];
+	struct hash_netportnet4_elem e = { .cidr[0] = HOST_MASK,
+					   .cidr[1] = HOST_MASK };
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
+	u32 ip = 0, ip_to = 0, ip_last, p = 0, port, port_to;
+	u32 ip2_from = 0, ip2_to = 0, ip2_last, ip2;
+	bool with_ports = false;
+	u8 cidr, cidr2;
+	int ret;
+
+	if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
+		     !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES)))
+		return -IPSET_ERR_PROTOCOL;
+
+	if (tb[IPSET_ATTR_LINENO])
+		*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
+
+	ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP], &ip) ||
+	      ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2], &ip2_from) ||
+	      ip_set_get_extensions(set, tb, &ext);
+	if (ret)
+		return ret;
+
+	if (tb[IPSET_ATTR_CIDR]) {
+		cidr = nla_get_u8(tb[IPSET_ATTR_CIDR]);
+		if (!cidr || cidr > HOST_MASK)
+			return -IPSET_ERR_INVALID_CIDR;
+		e.cidr[0] = cidr;
+	}
+
+	if (tb[IPSET_ATTR_CIDR2]) {
+		cidr = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
+		if (!cidr || cidr > HOST_MASK)
+			return -IPSET_ERR_INVALID_CIDR;
+		e.cidr[1] = cidr;
+	}
+
+	if (tb[IPSET_ATTR_PORT])
+		e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
+	else
+		return -IPSET_ERR_PROTOCOL;
+
+	if (tb[IPSET_ATTR_PROTO]) {
+		e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
+		with_ports = ip_set_proto_with_ports(e.proto);
+
+		if (e.proto == 0)
+			return -IPSET_ERR_INVALID_PROTO;
+	} else
+		return -IPSET_ERR_MISSING_PROTO;
+
+	if (!(with_ports || e.proto == IPPROTO_ICMP))
+		e.port = 0;
+
+	if (tb[IPSET_ATTR_CADT_FLAGS]) {
+		u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
+		if (cadt_flags & IPSET_FLAG_NOMATCH)
+			flags |= (IPSET_FLAG_NOMATCH << 16);
+	}
+
+	with_ports = with_ports && tb[IPSET_ATTR_PORT_TO];
+	if (adt == IPSET_TEST ||
+	    !(tb[IPSET_ATTR_IP_TO] || with_ports || tb[IPSET_ATTR_IP2_TO])) {
+		e.ip[0] = htonl(ip & ip_set_hostmask(e.cidr[0]));
+		e.ip[1] = htonl(ip2_from & ip_set_hostmask(e.cidr[1]));
+		ret = adtfn(set, &e, &ext, &ext, flags);
+		return ip_set_enomatch(ret, flags, adt, set) ? -ret :
+		       ip_set_eexist(ret, flags) ? 0 : ret;
+	}
+
+	ip_to = ip;
+	if (tb[IPSET_ATTR_IP_TO]) {
+		ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP_TO], &ip_to);
+		if (ret)
+			return ret;
+		if (ip > ip_to)
+			swap(ip, ip_to);
+		if (unlikely(ip + UINT_MAX == ip_to))
+			return -IPSET_ERR_HASH_RANGE;
+	}
+
+	port_to = port = ntohs(e.port);
+	if (tb[IPSET_ATTR_PORT_TO]) {
+		port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
+		if (port > port_to)
+			swap(port, port_to);
+	}
+
+	ip2_to = ip2_from;
+	if (tb[IPSET_ATTR_IP2_TO]) {
+		ret = ip_set_get_hostipaddr4(tb[IPSET_ATTR_IP2_TO], &ip2_to);
+		if (ret)
+			return ret;
+		if (ip2_from > ip2_to)
+			swap(ip2_from, ip2_to);
+		if (unlikely(ip2_from + UINT_MAX == ip2_to))
+			return -IPSET_ERR_HASH_RANGE;
+	}
+
+	if (retried)
+		ip = ntohl(h->next.ip[0]);
+
+	while (!after(ip, ip_to)) {
+		e.ip[0] = htonl(ip);
+		ip_last = ip_set_range_to_cidr(ip, ip_to, &cidr);
+		e.cidr[0] = cidr;
+		p = retried && ip == ntohl(h->next.ip[0]) ? ntohs(h->next.port)
+							  : port;
+		for (; p <= port_to; p++) {
+			e.port = htons(p);
+			ip2 = (retried && ip == ntohl(h->next.ip[0]) &&
+			       p == ntohs(h->next.port)) ? ntohl(h->next.ip[1])
+							 : ip2_from;
+			while (!after(ip2, ip2_to)) {
+				e.ip[1] = htonl(ip2);
+				ip2_last = ip_set_range_to_cidr(ip2, ip2_to,
+								&cidr2);
+				e.cidr[1] = cidr2;
+				ret = adtfn(set, &e, &ext, &ext, flags);
+				if (ret && !ip_set_eexist(ret, flags))
+					return ret;
+				else
+					ret = 0;
+				ip2 = ip2_last + 1;
+			}
+		}
+		ip = ip_last + 1;
+	}
+	return ret;
+}
+
+/* IPv6 variant */
+
+struct hash_netportnet6_elem {
+	union nf_inet_addr ip[2];
+	__be16 port;
+	union {
+		u8 cidr[2];
+		u16 ccmp;
+	};
+	u8 nomatch:1;
+	u8 proto;
+};
+
+/* Common functions */
+
+static inline bool
+hash_netportnet6_data_equal(const struct hash_netportnet6_elem *ip1,
+			   const struct hash_netportnet6_elem *ip2,
+			   u32 *multi)
+{
+	return ipv6_addr_equal(&ip1->ip[0].in6, &ip2->ip[0].in6) &&
+	       ipv6_addr_equal(&ip1->ip[1].in6, &ip2->ip[1].in6) &&
+	       ip1->ccmp == ip2->ccmp &&
+	       ip1->port == ip2->port &&
+	       ip1->proto == ip2->proto;
+}
+
+static inline int
+hash_netportnet6_do_data_match(const struct hash_netportnet6_elem *elem)
+{
+	return elem->nomatch ? -ENOTEMPTY : 1;
+}
+
+static inline void
+hash_netportnet6_data_set_flags(struct hash_netportnet6_elem *elem, u32 flags)
+{
+	elem->nomatch = !!((flags >> 16) & IPSET_FLAG_NOMATCH);
+}
+
+static inline void
+hash_netportnet6_data_reset_flags(struct hash_netportnet6_elem *elem, u8 *flags)
+{
+	swap(*flags, elem->nomatch);
+}
+
+static inline void
+hash_netportnet6_data_reset_elem(struct hash_netportnet6_elem *elem,
+				struct hash_netportnet6_elem *orig)
+{
+	elem->ip[1] = orig->ip[1];
+}
+
+static inline void
+hash_netportnet6_data_netmask(struct hash_netportnet6_elem *elem,
+			      u8 cidr, bool inner)
+{
+	if (inner) {
+		ip6_netmask(&elem->ip[1], cidr);
+		elem->cidr[1] = cidr;
+	} else {
+		ip6_netmask(&elem->ip[0], cidr);
+		elem->cidr[0] = cidr;
+	}
+}
+
+static bool
+hash_netportnet6_data_list(struct sk_buff *skb,
+			  const struct hash_netportnet6_elem *data)
+{
+	u32 flags = data->nomatch ? IPSET_FLAG_NOMATCH : 0;
+
+	if (nla_put_ipaddr6(skb, IPSET_ATTR_IP, &data->ip[0].in6) ||
+	    nla_put_ipaddr6(skb, IPSET_ATTR_IP2, &data->ip[1].in6) ||
+	    nla_put_net16(skb, IPSET_ATTR_PORT, data->port) ||
+	    nla_put_u8(skb, IPSET_ATTR_CIDR, data->cidr[0]) ||
+	    nla_put_u8(skb, IPSET_ATTR_CIDR2, data->cidr[1]) ||
+	    nla_put_u8(skb, IPSET_ATTR_PROTO, data->proto) ||
+	    (flags &&
+	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS, htonl(flags))))
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return 1;
+}
+
+static inline void
+hash_netportnet6_data_next(struct hash_netportnet4_elem *next,
+			  const struct hash_netportnet6_elem *d)
+{
+	next->port = d->port;
+}
+
+#undef MTYPE
+#undef PF
+#undef HOST_MASK
+
+#define MTYPE		hash_netportnet6
+#define PF		6
+#define HOST_MASK	128
+#define IP_SET_EMIT_CREATE
+#include "ip_set_hash_gen.h"
+
+static int
+hash_netportnet6_kadt(struct ip_set *set, const struct sk_buff *skb,
+		     const struct xt_action_param *par,
+		     enum ipset_adt adt, struct ip_set_adt_opt *opt)
+{
+	const struct hash_netportnet *h = set->data;
+	ipset_adtfn adtfn = set->variant->adt[adt];
+	struct hash_netportnet6_elem e = {
+		.cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
+		.cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK),
+	};
+	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
+
+	if (adt == IPSET_TEST)
+		e.ccmp = (HOST_MASK << (sizeof(u8) * 8)) | HOST_MASK;
+
+	if (!ip_set_get_ip6_port(skb, opt->flags & IPSET_DIM_TWO_SRC,
+				 &e.port, &e.proto))
+		return -EINVAL;
+
+	ip6addrptr(skb, opt->flags & IPSET_DIM_ONE_SRC, &e.ip[0].in6);
+	ip6addrptr(skb, opt->flags & IPSET_DIM_THREE_SRC, &e.ip[1].in6);
+	ip6_netmask(&e.ip[0], e.cidr[0]);
+	ip6_netmask(&e.ip[1], e.cidr[1]);
+
+	return adtfn(set, &e, &ext, &opt->ext, opt->cmdflags);
+}
+
+static int
+hash_netportnet6_uadt(struct ip_set *set, struct nlattr *tb[],
+		     enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
+{
+	const struct hash_netportnet *h = set->data;
+	ipset_adtfn adtfn = set->variant->adt[adt];
+	struct hash_netportnet6_elem e = { .cidr[0] = HOST_MASK,
+					   .cidr[1] = HOST_MASK };
+	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
+	u32 port, port_to;
+	bool with_ports = false;
+	int ret;
+
+	if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
+		     !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PACKETS) ||
+		     !ip_set_optattr_netorder(tb, IPSET_ATTR_BYTES)))
+		return -IPSET_ERR_PROTOCOL;
+	if (unlikely(tb[IPSET_ATTR_IP_TO] || tb[IPSET_ATTR_IP2_TO]))
+		return -IPSET_ERR_HASH_RANGE_UNSUPPORTED;
+
+	if (tb[IPSET_ATTR_LINENO])
+		*lineno = nla_get_u32(tb[IPSET_ATTR_LINENO]);
+
+	ret = ip_set_get_ipaddr6(tb[IPSET_ATTR_IP], &e.ip[0]) ||
+	      ip_set_get_ipaddr6(tb[IPSET_ATTR_IP2], &e.ip[1]) ||
+	      ip_set_get_extensions(set, tb, &ext);
+	if (ret)
+		return ret;
+
+	if (tb[IPSET_ATTR_CIDR])
+		e.cidr[0] = nla_get_u8(tb[IPSET_ATTR_CIDR]);
+
+	if (tb[IPSET_ATTR_CIDR2])
+		e.cidr[1] = nla_get_u8(tb[IPSET_ATTR_CIDR2]);
+
+	if (unlikely(!e.cidr[0] || e.cidr[0] > HOST_MASK || !e.cidr[1] ||
+		     e.cidr[1] > HOST_MASK))
+		return -IPSET_ERR_INVALID_CIDR;
+
+	ip6_netmask(&e.ip[0], e.cidr[0]);
+	ip6_netmask(&e.ip[1], e.cidr[1]);
+
+	if (tb[IPSET_ATTR_PORT])
+		e.port = nla_get_be16(tb[IPSET_ATTR_PORT]);
+	else
+		return -IPSET_ERR_PROTOCOL;
+
+	if (tb[IPSET_ATTR_PROTO]) {
+		e.proto = nla_get_u8(tb[IPSET_ATTR_PROTO]);
+		with_ports = ip_set_proto_with_ports(e.proto);
+
+		if (e.proto == 0)
+			return -IPSET_ERR_INVALID_PROTO;
+	} else
+		return -IPSET_ERR_MISSING_PROTO;
+
+	if (!(with_ports || e.proto == IPPROTO_ICMPV6))
+		e.port = 0;
+
+	if (tb[IPSET_ATTR_CADT_FLAGS]) {
+		u32 cadt_flags = ip_set_get_h32(tb[IPSET_ATTR_CADT_FLAGS]);
+		if (cadt_flags & IPSET_FLAG_NOMATCH)
+			flags |= (IPSET_FLAG_NOMATCH << 16);
+	}
+
+	if (adt == IPSET_TEST || !with_ports || !tb[IPSET_ATTR_PORT_TO]) {
+		ret = adtfn(set, &e, &ext, &ext, flags);
+		return ip_set_enomatch(ret, flags, adt, set) ? -ret :
+		       ip_set_eexist(ret, flags) ? 0 : ret;
+	}
+
+	port = ntohs(e.port);
+	port_to = ip_set_get_h16(tb[IPSET_ATTR_PORT_TO]);
+	if (port > port_to)
+		swap(port, port_to);
+
+	if (retried)
+		port = ntohs(h->next.port);
+	for (; port <= port_to; port++) {
+		e.port = htons(port);
+		ret = adtfn(set, &e, &ext, &ext, flags);
+
+		if (ret && !ip_set_eexist(ret, flags))
+			return ret;
+		else
+			ret = 0;
+	}
+	return ret;
+}
+
+static struct ip_set_type hash_netportnet_type __read_mostly = {
+	.name		= "hash:net,port,net",
+	.protocol	= IPSET_PROTOCOL,
+	.features	= IPSET_TYPE_IP | IPSET_TYPE_PORT | IPSET_TYPE_IP2 |
+			  IPSET_TYPE_NOMATCH,
+	.dimension	= IPSET_DIM_THREE,
+	.family		= NFPROTO_UNSPEC,
+	.revision_min	= IPSET_TYPE_REV_MIN,
+	.revision_max	= IPSET_TYPE_REV_MAX,
+	.create		= hash_netportnet_create,
+	.create_policy	= {
+		[IPSET_ATTR_HASHSIZE]	= { .type = NLA_U32 },
+		[IPSET_ATTR_MAXELEM]	= { .type = NLA_U32 },
+		[IPSET_ATTR_PROBES]	= { .type = NLA_U8 },
+		[IPSET_ATTR_RESIZE]	= { .type = NLA_U8  },
+		[IPSET_ATTR_TIMEOUT]	= { .type = NLA_U32 },
+		[IPSET_ATTR_CADT_FLAGS]	= { .type = NLA_U32 },
+	},
+	.adt_policy	= {
+		[IPSET_ATTR_IP]		= { .type = NLA_NESTED },
+		[IPSET_ATTR_IP_TO]	= { .type = NLA_NESTED },
+		[IPSET_ATTR_IP2]	= { .type = NLA_NESTED },
+		[IPSET_ATTR_IP2_TO]	= { .type = NLA_NESTED },
+		[IPSET_ATTR_PORT]	= { .type = NLA_U16 },
+		[IPSET_ATTR_PORT_TO]	= { .type = NLA_U16 },
+		[IPSET_ATTR_CIDR]	= { .type = NLA_U8 },
+		[IPSET_ATTR_CIDR2]	= { .type = NLA_U8 },
+		[IPSET_ATTR_PROTO]	= { .type = NLA_U8 },
+		[IPSET_ATTR_CADT_FLAGS]	= { .type = NLA_U32 },
+		[IPSET_ATTR_TIMEOUT]	= { .type = NLA_U32 },
+		[IPSET_ATTR_LINENO]	= { .type = NLA_U32 },
+		[IPSET_ATTR_BYTES]	= { .type = NLA_U64 },
+		[IPSET_ATTR_PACKETS]	= { .type = NLA_U64 },
+		[IPSET_ATTR_COMMENT]	= { .type = NLA_NUL_STRING },
+	},
+	.me		= THIS_MODULE,
+};
+
+static int __init
+hash_netportnet_init(void)
+{
+	return ip_set_type_register(&hash_netportnet_type);
+}
+
+static void __exit
+hash_netportnet_fini(void)
+{
+	ip_set_type_unregister(&hash_netportnet_type);
+}
+
+module_init(hash_netportnet_init);
+module_exit(hash_netportnet_fini);
-- 
cgit 


From 0c4e4020f0145ed84b0ef9e3fb79c4a022e77e47 Mon Sep 17 00:00:00 2001
From: stephen hemminger <stephen@networkplumber.org>
Date: Thu, 26 Sep 2013 17:40:11 -0700
Subject: qdisc: meta return ENOMEM on alloc failure

Rather than returning earlier value (EINVAL), return ENOMEM if
kzalloc fails. Found while reviewing to find another EINVAL condition.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sched/em_meta.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/sched/em_meta.c b/net/sched/em_meta.c
index 7c3de6ffa516..e5cef9567225 100644
--- a/net/sched/em_meta.c
+++ b/net/sched/em_meta.c
@@ -793,8 +793,10 @@ static int em_meta_change(struct tcf_proto *tp, void *data, int len,
 		goto errout;
 
 	meta = kzalloc(sizeof(*meta), GFP_KERNEL);
-	if (meta == NULL)
+	if (meta == NULL) {
+		err = -ENOMEM;
 		goto errout;
+	}
 
 	memcpy(&meta->lvalue.hdr, &hdr->left, sizeof(hdr->left));
 	memcpy(&meta->rvalue.hdr, &hdr->right, sizeof(hdr->right));
-- 
cgit 


From 6459082a3cfb2e79a93ffcbfae3b5924ec9cac77 Mon Sep 17 00:00:00 2001
From: stephen hemminger <stephen@networkplumber.org>
Date: Thu, 26 Sep 2013 17:42:16 -0700
Subject: qdisc: basic classifier - remove unnecessary initialization

err is set once, then first code resets it.
  err = tcf_exts_validate(...)

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Jamal Hadi Salim <hadi@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sched/cls_basic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sched/cls_basic.c b/net/sched/cls_basic.c
index d76a35d0dc85..636d9131d870 100644
--- a/net/sched/cls_basic.c
+++ b/net/sched/cls_basic.c
@@ -137,7 +137,7 @@ static int basic_set_parms(struct net *net, struct tcf_proto *tp,
 			   struct nlattr **tb,
 			   struct nlattr *est)
 {
-	int err = -EINVAL;
+	int err;
 	struct tcf_exts e;
 	struct tcf_ematch_tree t;
 
-- 
cgit 


From 53e879a485f9def0e55c404dbc7187470a01602d Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zheng.z.yan@intel.com>
Date: Wed, 18 Sep 2013 09:29:07 +0800
Subject: ceph: remove outdated frag information

If directory fragments change, fill_inode() inserts new frags into
the fragtree, but it does not remove outdated frags from the fragtree.
This patch fixes it.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Sage Weil <sage@inktank.com>
---
 fs/ceph/inode.c | 33 +++++++++++++++++++++++++++++----
 1 file changed, 29 insertions(+), 4 deletions(-)

diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 8549a48115f7..1c9fea0c9834 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -577,6 +577,8 @@ static int fill_inode(struct inode *inode,
 	int issued = 0, implemented;
 	struct timespec mtime, atime, ctime;
 	u32 nsplits;
+	struct ceph_inode_frag *frag;
+	struct rb_node *rb_node;
 	struct ceph_buffer *xattr_blob = NULL;
 	int err = 0;
 	int queue_trunc = 0;
@@ -751,15 +753,38 @@ no_change:
 	/* FIXME: move me up, if/when version reflects fragtree changes */
 	nsplits = le32_to_cpu(info->fragtree.nsplits);
 	mutex_lock(&ci->i_fragtree_mutex);
+	rb_node = rb_first(&ci->i_fragtree);
 	for (i = 0; i < nsplits; i++) {
 		u32 id = le32_to_cpu(info->fragtree.splits[i].frag);
-		struct ceph_inode_frag *frag = __get_or_create_frag(ci, id);
-
-		if (IS_ERR(frag))
-			continue;
+		frag = NULL;
+		while (rb_node) {
+			frag = rb_entry(rb_node, struct ceph_inode_frag, node);
+			if (ceph_frag_compare(frag->frag, id) >= 0) {
+				if (frag->frag != id)
+					frag = NULL;
+				else
+					rb_node = rb_next(rb_node);
+				break;
+			}
+			rb_node = rb_next(rb_node);
+			rb_erase(&frag->node, &ci->i_fragtree);
+			kfree(frag);
+			frag = NULL;
+		}
+		if (!frag) {
+			frag = __get_or_create_frag(ci, id);
+			if (IS_ERR(frag))
+				continue;
+		}
 		frag->split_by = le32_to_cpu(info->fragtree.splits[i].by);
 		dout(" frag %x split by %d\n", frag->frag, frag->split_by);
 	}
+	while (rb_node) {
+		frag = rb_entry(rb_node, struct ceph_inode_frag, node);
+		rb_node = rb_next(rb_node);
+		rb_erase(&frag->node, &ci->i_fragtree);
+		kfree(frag);
+	}
 	mutex_unlock(&ci->i_fragtree_mutex);
 
 	/* were we issued a capability? */
-- 
cgit 


From 81c6aea5275eae453719d7f3924da07e668265c5 Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zheng.z.yan@intel.com>
Date: Wed, 18 Sep 2013 09:44:13 +0800
Subject: ceph: handle frag mismatch between readdir request and reply

If client has outdated directory fragments information, it may request
readdir an non-existent directory fragment. In this case, the MDS finds
an approximate directory fragment and sends its contents back to the
client. When receiving a reply with fragment that is different than the
requested one, the client need to reset the 'readdir offset'.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Sage Weil <sage@inktank.com>
---
 fs/ceph/dir.c        | 11 ++++++++++-
 fs/ceph/inode.c      | 16 ++++++++++++++--
 fs/ceph/mds_client.c |  3 +--
 3 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 868b61d56cac..2a0bcaeb189a 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -352,8 +352,18 @@ more:
 		}
 
 		/* note next offset and last dentry name */
+		rinfo = &req->r_reply_info;
+		if (le32_to_cpu(rinfo->dir_dir->frag) != frag) {
+			frag = le32_to_cpu(rinfo->dir_dir->frag);
+			if (ceph_frag_is_leftmost(frag))
+				fi->next_offset = 2;
+			else
+				fi->next_offset = 0;
+			off = fi->next_offset;
+		}
 		fi->offset = fi->next_offset;
 		fi->last_readdir = req;
+		fi->frag = frag;
 
 		if (req->r_reply_info.dir_end) {
 			kfree(fi->last_name);
@@ -363,7 +373,6 @@ more:
 			else
 				fi->next_offset = 0;
 		} else {
-			rinfo = &req->r_reply_info;
 			err = note_last_dentry(fi,
 				       rinfo->dir_dname[rinfo->dir_nr-1],
 				       rinfo->dir_dname_len[rinfo->dir_nr-1]);
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 1c9fea0c9834..9a8e396aed89 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -1275,8 +1275,20 @@ int ceph_readdir_prepopulate(struct ceph_mds_request *req,
 	int err = 0, i;
 	struct inode *snapdir = NULL;
 	struct ceph_mds_request_head *rhead = req->r_request->front.iov_base;
-	u64 frag = le32_to_cpu(rhead->args.readdir.frag);
 	struct ceph_dentry_info *di;
+	u64 r_readdir_offset = req->r_readdir_offset;
+	u32 frag = le32_to_cpu(rhead->args.readdir.frag);
+
+	if (rinfo->dir_dir &&
+	    le32_to_cpu(rinfo->dir_dir->frag) != frag) {
+		dout("readdir_prepopulate got new frag %x -> %x\n",
+		     frag, le32_to_cpu(rinfo->dir_dir->frag));
+		frag = le32_to_cpu(rinfo->dir_dir->frag);
+		if (ceph_frag_is_leftmost(frag))
+			r_readdir_offset = 2;
+		else
+			r_readdir_offset = 0;
+	}
 
 	if (req->r_aborted)
 		return readdir_prepopulate_inodes_only(req, session);
@@ -1340,7 +1352,7 @@ retry_lookup:
 		}
 
 		di = dn->d_fsdata;
-		di->offset = ceph_make_fpos(frag, i + req->r_readdir_offset);
+		di->offset = ceph_make_fpos(frag, i + r_readdir_offset);
 
 		/* inode */
 		if (dn->d_inode) {
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index b7bda5d9611d..f51ab2627b41 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -2238,8 +2238,7 @@ static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg)
 	err = ceph_fill_trace(mdsc->fsc->sb, req, req->r_session);
 	if (err == 0) {
 		if (result == 0 && (req->r_op == CEPH_MDS_OP_READDIR ||
-				    req->r_op == CEPH_MDS_OP_LSSNAP) &&
-		    rinfo->dir_nr)
+				    req->r_op == CEPH_MDS_OP_LSSNAP))
 			ceph_readdir_prepopulate(req, req->r_session);
 		ceph_unreserve_caps(mdsc, &req->r_caps_reservation);
 	}
-- 
cgit 


From f112a049712a5c07de25d511c3c6587a2b1a015e Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Mon, 30 Sep 2013 09:37:03 +1000
Subject: xfs: lockdep needs to know about 3 dquot-deep nesting

Michael Semon reported that xfs/299 generated this lockdep warning:

=============================================
[ INFO: possible recursive locking detected ]
3.12.0-rc2+ #2 Not tainted
---------------------------------------------
touch/21072 is trying to acquire lock:
 (&xfs_dquot_other_class){+.+...}, at: [<c12902fb>] xfs_trans_dqlockedjoin+0x57/0x64

but task is already holding lock:
 (&xfs_dquot_other_class){+.+...}, at: [<c12902fb>] xfs_trans_dqlockedjoin+0x57/0x64

other info that might help us debug this:
 Possible unsafe locking scenario:

       CPU0
       ----
  lock(&xfs_dquot_other_class);
  lock(&xfs_dquot_other_class);

 *** DEADLOCK ***

 May be due to missing lock nesting notation

7 locks held by touch/21072:
 #0:  (sb_writers#10){++++.+}, at: [<c11185b6>] mnt_want_write+0x1e/0x3e
 #1:  (&type->i_mutex_dir_key#4){+.+.+.}, at: [<c11078ee>] do_last+0x245/0xe40
 #2:  (sb_internal#2){++++.+}, at: [<c122c9e0>] xfs_trans_alloc+0x1f/0x35
 #3:  (&(&ip->i_lock)->mr_lock/1){+.+...}, at: [<c126cd1b>] xfs_ilock+0x100/0x1f1
 #4:  (&(&ip->i_lock)->mr_lock){++++-.}, at: [<c126cf52>] xfs_ilock_nowait+0x105/0x22f
 #5:  (&dqp->q_qlock){+.+...}, at: [<c12902fb>] xfs_trans_dqlockedjoin+0x57/0x64
 #6:  (&xfs_dquot_other_class){+.+...}, at: [<c12902fb>] xfs_trans_dqlockedjoin+0x57/0x64

The lockdep annotation for dquot lock nesting only understands
locking for user and "other" dquots, not user, group and quota
dquots. Fix the annotations to match the locking heirarchy we now
have.

Reported-by: Michael L. Semon <mlsemon35@gmail.com>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_dquot.c | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c
index 71520e6e5d65..1ee776d477c3 100644
--- a/fs/xfs/xfs_dquot.c
+++ b/fs/xfs/xfs_dquot.c
@@ -64,7 +64,8 @@ int xfs_dqerror_mod = 33;
 struct kmem_zone		*xfs_qm_dqtrxzone;
 static struct kmem_zone		*xfs_qm_dqzone;
 
-static struct lock_class_key xfs_dquot_other_class;
+static struct lock_class_key xfs_dquot_group_class;
+static struct lock_class_key xfs_dquot_project_class;
 
 /*
  * This is called to free all the memory associated with a dquot
@@ -703,8 +704,20 @@ xfs_qm_dqread(
 	 * Make sure group quotas have a different lock class than user
 	 * quotas.
 	 */
-	if (!(type & XFS_DQ_USER))
-		lockdep_set_class(&dqp->q_qlock, &xfs_dquot_other_class);
+	switch (type) {
+	case XFS_DQ_USER:
+		/* uses the default lock class */
+		break;
+	case XFS_DQ_GROUP:
+		lockdep_set_class(&dqp->q_qlock, &xfs_dquot_group_class);
+		break;
+	case XFS_DQ_PROJ:
+		lockdep_set_class(&dqp->q_qlock, &xfs_dquot_project_class);
+		break;
+	default:
+		ASSERT(0);
+		break;
+	}
 
 	XFS_STATS_INC(xs_qm_dquot);
 
-- 
cgit 


From 367993e7c6428cb7617ab7653d61dca54e2fdede Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Mon, 30 Sep 2013 09:37:04 +1000
Subject: xfs: dirent dtype presence is dependent on directory magic numbers

The determination of whether a directory entry contains a dtype
field originally was dependent on the filesystem having CRCs
enabled. This meant that the format for dtype beign enabled could be
determined by checking the directory block magic number rather than
doing a feature bit check. This was useful in that it meant that we
didn't need to pass a struct xfs_mount around to functions that
were already supplied with a directory block header.

Unfortunately, the introduction of dtype fields into the v4
structure via a feature bit meant this "use the directory block
magic number" method of discriminating the dirent entry sizes is
broken. Hence we need to convert the places that use magic number
checks to use feature bit checks so that they work correctly and not
by chance.

The current code works on v4 filesystems only because the dirent
size roundup covers the extra byte needed by the dtype field in the
places where this problem occurs.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_dir2_block.c   |  6 +++---
 fs/xfs/xfs_dir2_format.h  | 51 +++++++++++++++++++----------------------------
 fs/xfs/xfs_dir2_readdir.c |  4 ++--
 fs/xfs/xfs_dir2_sf.c      |  6 +++---
 4 files changed, 28 insertions(+), 39 deletions(-)

diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c
index 0957aa98b6c0..12dad188939d 100644
--- a/fs/xfs/xfs_dir2_block.c
+++ b/fs/xfs/xfs_dir2_block.c
@@ -1158,7 +1158,7 @@ xfs_dir2_sf_to_block(
 	/*
 	 * Create entry for .
 	 */
-	dep = xfs_dir3_data_dot_entry_p(hdr);
+	dep = xfs_dir3_data_dot_entry_p(mp, hdr);
 	dep->inumber = cpu_to_be64(dp->i_ino);
 	dep->namelen = 1;
 	dep->name[0] = '.';
@@ -1172,7 +1172,7 @@ xfs_dir2_sf_to_block(
 	/*
 	 * Create entry for ..
 	 */
-	dep = xfs_dir3_data_dotdot_entry_p(hdr);
+	dep = xfs_dir3_data_dotdot_entry_p(mp, hdr);
 	dep->inumber = cpu_to_be64(xfs_dir2_sf_get_parent_ino(sfp));
 	dep->namelen = 2;
 	dep->name[0] = dep->name[1] = '.';
@@ -1183,7 +1183,7 @@ xfs_dir2_sf_to_block(
 	blp[1].hashval = cpu_to_be32(xfs_dir_hash_dotdot);
 	blp[1].address = cpu_to_be32(xfs_dir2_byte_to_dataptr(mp,
 				(char *)dep - (char *)hdr));
-	offset = xfs_dir3_data_first_offset(hdr);
+	offset = xfs_dir3_data_first_offset(mp);
 	/*
 	 * Loop over existing entries, stuff them in.
 	 */
diff --git a/fs/xfs/xfs_dir2_format.h b/fs/xfs/xfs_dir2_format.h
index a0961a61ac1a..9cf67381adf6 100644
--- a/fs/xfs/xfs_dir2_format.h
+++ b/fs/xfs/xfs_dir2_format.h
@@ -497,69 +497,58 @@ xfs_dir3_data_unused_p(struct xfs_dir2_data_hdr *hdr)
 /*
  * Offsets of . and .. in data space (always block 0)
  *
- * The macros are used for shortform directories as they have no headers to read
- * the magic number out of. Shortform directories need to know the size of the
- * data block header because the sfe embeds the block offset of the entry into
- * it so that it doesn't change when format conversion occurs. Bad Things Happen
- * if we don't follow this rule.
- *
  * XXX: there is scope for significant optimisation of the logic here. Right
  * now we are checking for "dir3 format" over and over again. Ideally we should
  * only do it once for each operation.
  */
-#define	XFS_DIR3_DATA_DOT_OFFSET(mp)	\
-	xfs_dir3_data_hdr_size(xfs_sb_version_hascrc(&(mp)->m_sb))
-#define	XFS_DIR3_DATA_DOTDOT_OFFSET(mp)	\
-	(XFS_DIR3_DATA_DOT_OFFSET(mp) + xfs_dir3_data_entsize(mp, 1))
-#define	XFS_DIR3_DATA_FIRST_OFFSET(mp)		\
-	(XFS_DIR3_DATA_DOTDOT_OFFSET(mp) + xfs_dir3_data_entsize(mp, 2))
-
 static inline xfs_dir2_data_aoff_t
-xfs_dir3_data_dot_offset(struct xfs_dir2_data_hdr *hdr)
+xfs_dir3_data_dot_offset(struct xfs_mount *mp)
 {
-	return xfs_dir3_data_entry_offset(hdr);
+	return xfs_dir3_data_hdr_size(xfs_sb_version_hascrc(&mp->m_sb));
 }
 
 static inline xfs_dir2_data_aoff_t
-xfs_dir3_data_dotdot_offset(struct xfs_dir2_data_hdr *hdr)
+xfs_dir3_data_dotdot_offset(struct xfs_mount *mp)
 {
-	bool dir3 = hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) ||
-		    hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC);
-	return xfs_dir3_data_dot_offset(hdr) +
-		__xfs_dir3_data_entsize(dir3, 1);
+	return xfs_dir3_data_dot_offset(mp) +
+		xfs_dir3_data_entsize(mp, 1);
 }
 
 static inline xfs_dir2_data_aoff_t
-xfs_dir3_data_first_offset(struct xfs_dir2_data_hdr *hdr)
+xfs_dir3_data_first_offset(struct xfs_mount *mp)
 {
-	bool dir3 = hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) ||
-		    hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC);
-	return xfs_dir3_data_dotdot_offset(hdr) +
-		__xfs_dir3_data_entsize(dir3, 2);
+	return xfs_dir3_data_dotdot_offset(mp) +
+		xfs_dir3_data_entsize(mp, 2);
 }
 
 /*
  * location of . and .. in data space (always block 0)
  */
 static inline struct xfs_dir2_data_entry *
-xfs_dir3_data_dot_entry_p(struct xfs_dir2_data_hdr *hdr)
+xfs_dir3_data_dot_entry_p(
+	struct xfs_mount	*mp,
+	struct xfs_dir2_data_hdr *hdr)
 {
 	return (struct xfs_dir2_data_entry *)
-		((char *)hdr + xfs_dir3_data_dot_offset(hdr));
+		((char *)hdr + xfs_dir3_data_dot_offset(mp));
 }
 
 static inline struct xfs_dir2_data_entry *
-xfs_dir3_data_dotdot_entry_p(struct xfs_dir2_data_hdr *hdr)
+xfs_dir3_data_dotdot_entry_p(
+	struct xfs_mount	*mp,
+	struct xfs_dir2_data_hdr *hdr)
 {
 	return (struct xfs_dir2_data_entry *)
-		((char *)hdr + xfs_dir3_data_dotdot_offset(hdr));
+		((char *)hdr + xfs_dir3_data_dotdot_offset(mp));
 }
 
 static inline struct xfs_dir2_data_entry *
-xfs_dir3_data_first_entry_p(struct xfs_dir2_data_hdr *hdr)
+xfs_dir3_data_first_entry_p(
+	struct xfs_mount	*mp,
+	struct xfs_dir2_data_hdr *hdr)
 {
 	return (struct xfs_dir2_data_entry *)
-		((char *)hdr + xfs_dir3_data_first_offset(hdr));
+		((char *)hdr + xfs_dir3_data_first_offset(mp));
 }
 
 /*
diff --git a/fs/xfs/xfs_dir2_readdir.c b/fs/xfs/xfs_dir2_readdir.c
index 8993ec17452c..8f84153e98a8 100644
--- a/fs/xfs/xfs_dir2_readdir.c
+++ b/fs/xfs/xfs_dir2_readdir.c
@@ -119,9 +119,9 @@ xfs_dir2_sf_getdents(
 	 * mp->m_dirdatablk.
 	 */
 	dot_offset = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
-					     XFS_DIR3_DATA_DOT_OFFSET(mp));
+					     xfs_dir3_data_dot_offset(mp));
 	dotdot_offset = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
-						XFS_DIR3_DATA_DOTDOT_OFFSET(mp));
+						xfs_dir3_data_dotdot_offset(mp));
 
 	/*
 	 * Put . entry unless we're starting past it.
diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c
index bb6e2848f473..3ef6d402084c 100644
--- a/fs/xfs/xfs_dir2_sf.c
+++ b/fs/xfs/xfs_dir2_sf.c
@@ -557,7 +557,7 @@ xfs_dir2_sf_addname_hard(
 	 * to insert the new entry.
 	 * If it's going to end up at the end then oldsfep will point there.
 	 */
-	for (offset = XFS_DIR3_DATA_FIRST_OFFSET(mp),
+	for (offset = xfs_dir3_data_first_offset(mp),
 	      oldsfep = xfs_dir2_sf_firstentry(oldsfp),
 	      add_datasize = xfs_dir3_data_entsize(mp, args->namelen),
 	      eof = (char *)oldsfep == &buf[old_isize];
@@ -640,7 +640,7 @@ xfs_dir2_sf_addname_pick(
 
 	sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
 	size = xfs_dir3_data_entsize(mp, args->namelen);
-	offset = XFS_DIR3_DATA_FIRST_OFFSET(mp);
+	offset = xfs_dir3_data_first_offset(mp);
 	sfep = xfs_dir2_sf_firstentry(sfp);
 	holefit = 0;
 	/*
@@ -713,7 +713,7 @@ xfs_dir2_sf_check(
 	mp = dp->i_mount;
 
 	sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
-	offset = XFS_DIR3_DATA_FIRST_OFFSET(mp);
+	offset = xfs_dir3_data_first_offset(mp);
 	ino = xfs_dir2_sf_get_parent_ino(sfp);
 	i8count = ino > XFS_DIR2_MAX_SHORT_INUM;
 
-- 
cgit 


From 519ccb81ac1c8e3e4eed294acf93be00b43dcad6 Mon Sep 17 00:00:00 2001
From: "tinguely@sgi.com" <tinguely@sgi.com>
Date: Fri, 27 Sep 2013 09:00:55 -0500
Subject: xfs: fix memory leak in xlog_recover_add_to_trans

Free the memory in error path of xlog_recover_add_to_trans().
Normally this memory is freed in recovery pass2, but is leaked
in the error path.

Signed-off-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_log_recover.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index cc179878fe41..43240583fd5b 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -1585,6 +1585,7 @@ xlog_recover_add_to_trans(
 		"bad number of regions (%d) in inode log format",
 				  in_f->ilf_size);
 			ASSERT(0);
+			free(ptr);
 			return XFS_ERROR(EIO);
 		}
 
-- 
cgit 


From 4f0581d25827d5e864bcf07b05d73d0d12a20a5c Mon Sep 17 00:00:00 2001
From: Wei Liu <wei.liu2@citrix.com>
Date: Sun, 22 Sep 2013 19:03:44 +0100
Subject: xen-netback: improve ring effeciency for guest RX

There was a bug that netback routines netbk/xenvif_skb_count_slots and
netbk/xenvif_gop_frag_copy disagreed with each other, which caused
netback to push wrong number of responses to netfront, which caused
netfront to eventually crash. The bug was fixed in 6e43fc04a
("xen-netback: count number required slots for an skb more carefully").

Commit 6e43fc04a focused on backport-ability. The drawback with the
existing packing scheme is that the ring is not used effeciently, as
stated in 6e43fc04a.

skb->data like:
    |        1111|222222222222|3333        |

is arranged as:
    |1111        |222222222222|3333        |

If we can do this:
    |111122222222|22223333    |
That would save one ring slot, which improves ring effeciency.

This patch effectively reverts 6e43fc04a. That patch made count_slots
agree with gop_frag_copy, while this patch goes the other way around --
make gop_frag_copy agree with count_slots. The end result is that they
still agree with each other, and the ring is now arranged like:
    |111122222222|22223333    |

The patch that improves packing was first posted by Xi Xong and Matt
Wilson. I only rebase it on top of net-next and rewrite commit message,
so I retain all their SoBs. For more infomation about the original bug
please refer to email listed below and commit message of 6e43fc04a.

Original patch:
http://lists.xen.org/archives/html/xen-devel/2013-07/msg00760.html

Signed-off-by: Xi Xiong <xixiong@amazon.com>
Reviewed-by: Matt Wilson <msw@amazon.com>
[ msw: minor code cleanups, rewrote commit message, adjusted code
  to count RX slots instead of meta structures ]
Signed-off-by: Matt Wilson <msw@amazon.com>
Cc: Annie Li <annie.li@oracle.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Cc: Ian Campbell <Ian.Campbell@citrix.com>
[ liuw: rebased on top of net-next tree, rewrote commit message, coding
  style cleanup. ]
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Acked-by: Ian Campbell <Ian.Campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/xen-netback/netback.c | 144 ++++++++++++++++----------------------
 1 file changed, 61 insertions(+), 83 deletions(-)

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index f3e591c611de..d0b0feb035fb 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -47,6 +47,14 @@
 #include <asm/xen/hypercall.h>
 #include <asm/xen/page.h>
 
+/* SKB control block overlay is used to store useful information when
+ * doing guest RX.
+ */
+struct skb_cb_overlay {
+	int meta_slots_used;
+	int peek_slots_count;
+};
+
 /* Provide an option to disable split event channels at load time as
  * event channels are limited resource. Split event channels are
  * enabled by default.
@@ -212,49 +220,6 @@ static bool start_new_rx_buffer(int offset, unsigned long size, int head)
 	return false;
 }
 
-struct xenvif_count_slot_state {
-	unsigned long copy_off;
-	bool head;
-};
-
-unsigned int xenvif_count_frag_slots(struct xenvif *vif,
-				     unsigned long offset, unsigned long size,
-				     struct xenvif_count_slot_state *state)
-{
-	unsigned count = 0;
-
-	offset &= ~PAGE_MASK;
-
-	while (size > 0) {
-		unsigned long bytes;
-
-		bytes = PAGE_SIZE - offset;
-
-		if (bytes > size)
-			bytes = size;
-
-		if (start_new_rx_buffer(state->copy_off, bytes, state->head)) {
-			count++;
-			state->copy_off = 0;
-		}
-
-		if (state->copy_off + bytes > MAX_BUFFER_OFFSET)
-			bytes = MAX_BUFFER_OFFSET - state->copy_off;
-
-		state->copy_off += bytes;
-
-		offset += bytes;
-		size -= bytes;
-
-		if (offset == PAGE_SIZE)
-			offset = 0;
-
-		state->head = false;
-	}
-
-	return count;
-}
-
 /*
  * Figure out how many ring slots we're going to need to send @skb to
  * the guest. This function is essentially a dry run of
@@ -262,40 +227,53 @@ unsigned int xenvif_count_frag_slots(struct xenvif *vif,
  */
 unsigned int xenvif_count_skb_slots(struct xenvif *vif, struct sk_buff *skb)
 {
-	struct xenvif_count_slot_state state;
 	unsigned int count;
-	unsigned char *data;
-	unsigned i;
+	int i, copy_off;
+	struct skb_cb_overlay *sco;
 
-	state.head = true;
-	state.copy_off = 0;
+	count = DIV_ROUND_UP(skb_headlen(skb), PAGE_SIZE);
 
-	/* Slot for the first (partial) page of data. */
-	count = 1;
+	copy_off = skb_headlen(skb) % PAGE_SIZE;
 
-	/* Need a slot for the GSO prefix for GSO extra data? */
 	if (skb_shinfo(skb)->gso_size)
 		count++;
 
-	data = skb->data;
-	while (data < skb_tail_pointer(skb)) {
-		unsigned long offset = offset_in_page(data);
-		unsigned long size = PAGE_SIZE - offset;
+	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+		unsigned long size = skb_frag_size(&skb_shinfo(skb)->frags[i]);
+		unsigned long offset = skb_shinfo(skb)->frags[i].page_offset;
+		unsigned long bytes;
 
-		if (data + size > skb_tail_pointer(skb))
-			size = skb_tail_pointer(skb) - data;
+		offset &= ~PAGE_MASK;
 
-		count += xenvif_count_frag_slots(vif, offset, size, &state);
+		while (size > 0) {
+			BUG_ON(offset >= PAGE_SIZE);
+			BUG_ON(copy_off > MAX_BUFFER_OFFSET);
 
-		data += size;
-	}
+			bytes = PAGE_SIZE - offset;
 
-	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
-		unsigned long size = skb_frag_size(&skb_shinfo(skb)->frags[i]);
-		unsigned long offset = skb_shinfo(skb)->frags[i].page_offset;
+			if (bytes > size)
+				bytes = size;
+
+			if (start_new_rx_buffer(copy_off, bytes, 0)) {
+				count++;
+				copy_off = 0;
+			}
 
-		count += xenvif_count_frag_slots(vif, offset, size, &state);
+			if (copy_off + bytes > MAX_BUFFER_OFFSET)
+				bytes = MAX_BUFFER_OFFSET - copy_off;
+
+			copy_off += bytes;
+
+			offset += bytes;
+			size -= bytes;
+
+			if (offset == PAGE_SIZE)
+				offset = 0;
+		}
 	}
+
+	sco = (struct skb_cb_overlay *)skb->cb;
+	sco->peek_slots_count = count;
 	return count;
 }
 
@@ -327,14 +305,11 @@ static struct xenvif_rx_meta *get_next_rx_buffer(struct xenvif *vif,
 	return meta;
 }
 
-/*
- * Set up the grant operations for this fragment. If it's a flipping
- * interface, we also set up the unmap request from here.
- */
+/* Set up the grant operations for this fragment. */
 static void xenvif_gop_frag_copy(struct xenvif *vif, struct sk_buff *skb,
 				 struct netrx_pending_operations *npo,
 				 struct page *page, unsigned long size,
-				 unsigned long offset, int *head)
+				 unsigned long offset, int head, int *first)
 {
 	struct gnttab_copy *copy_gop;
 	struct xenvif_rx_meta *meta;
@@ -358,12 +333,12 @@ static void xenvif_gop_frag_copy(struct xenvif *vif, struct sk_buff *skb,
 		if (bytes > size)
 			bytes = size;
 
-		if (start_new_rx_buffer(npo->copy_off, bytes, *head)) {
+		if (start_new_rx_buffer(npo->copy_off, bytes, head)) {
 			/*
 			 * Netfront requires there to be some data in the head
 			 * buffer.
 			 */
-			BUG_ON(*head);
+			BUG_ON(*first);
 
 			meta = get_next_rx_buffer(vif, npo);
 		}
@@ -397,10 +372,10 @@ static void xenvif_gop_frag_copy(struct xenvif *vif, struct sk_buff *skb,
 		}
 
 		/* Leave a gap for the GSO descriptor. */
-		if (*head && skb_shinfo(skb)->gso_size && !vif->gso_prefix)
+		if (*first && skb_shinfo(skb)->gso_size && !vif->gso_prefix)
 			vif->rx.req_cons++;
 
-		*head = 0; /* There must be something in this buffer now. */
+		*first = 0; /* There must be something in this buffer now. */
 
 	}
 }
@@ -426,7 +401,7 @@ static int xenvif_gop_skb(struct sk_buff *skb,
 	struct xen_netif_rx_request *req;
 	struct xenvif_rx_meta *meta;
 	unsigned char *data;
-	int head = 1;
+	int first = 1;
 	int old_meta_prod;
 
 	old_meta_prod = npo->meta_prod;
@@ -462,7 +437,7 @@ static int xenvif_gop_skb(struct sk_buff *skb,
 			len = skb_tail_pointer(skb) - data;
 
 		xenvif_gop_frag_copy(vif, skb, npo,
-				     virt_to_page(data), len, offset, &head);
+				     virt_to_page(data), len, offset, 1, &first);
 		data += len;
 	}
 
@@ -471,7 +446,7 @@ static int xenvif_gop_skb(struct sk_buff *skb,
 				     skb_frag_page(&skb_shinfo(skb)->frags[i]),
 				     skb_frag_size(&skb_shinfo(skb)->frags[i]),
 				     skb_shinfo(skb)->frags[i].page_offset,
-				     &head);
+				     0, &first);
 	}
 
 	return npo->meta_prod - old_meta_prod;
@@ -529,10 +504,6 @@ static void xenvif_add_frag_responses(struct xenvif *vif, int status,
 	}
 }
 
-struct skb_cb_overlay {
-	int meta_slots_used;
-};
-
 static void xenvif_kick_thread(struct xenvif *vif)
 {
 	wake_up(&vif->wq);
@@ -563,19 +534,26 @@ void xenvif_rx_action(struct xenvif *vif)
 	count = 0;
 
 	while ((skb = skb_dequeue(&vif->rx_queue)) != NULL) {
+		RING_IDX old_rx_req_cons;
+
 		vif = netdev_priv(skb->dev);
 		nr_frags = skb_shinfo(skb)->nr_frags;
 
+		old_rx_req_cons = vif->rx.req_cons;
 		sco = (struct skb_cb_overlay *)skb->cb;
 		sco->meta_slots_used = xenvif_gop_skb(skb, &npo);
 
-		count += nr_frags + 1;
+		count += vif->rx.req_cons - old_rx_req_cons;
 
 		__skb_queue_tail(&rxq, skb);
 
+		skb = skb_peek(&vif->rx_queue);
+		if (skb == NULL)
+			break;
+		sco = (struct skb_cb_overlay *)skb->cb;
+
 		/* Filled the batch queue? */
-		/* XXX FIXME: RX path dependent on MAX_SKB_FRAGS */
-		if (count + MAX_SKB_FRAGS >= XEN_NETIF_RX_RING_SIZE)
+		if (count + sco->peek_slots_count >= XEN_NETIF_RX_RING_SIZE)
 			break;
 	}
 
-- 
cgit 


From fbadadd90c851babb8e118245041ef1fe8e1eb2c Mon Sep 17 00:00:00 2001
From: Li RongQing <roy.qing.li@gmail.com>
Date: Mon, 23 Sep 2013 14:55:59 +0800
Subject: ipv6: Not need to set fl6.flowi6_flags as zero

setting fl6.flowi6_flags as zero after memset is redundant, Remove it.

Signed-off-by: Li RongQing <roy.qing.li@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/route.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index aa901bb60cf2..c3130ffc3bca 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1137,7 +1137,6 @@ void ip6_update_pmtu(struct sk_buff *skb, struct net *net, __be32 mtu,
 	memset(&fl6, 0, sizeof(fl6));
 	fl6.flowi6_oif = oif;
 	fl6.flowi6_mark = mark;
-	fl6.flowi6_flags = 0;
 	fl6.daddr = iph->daddr;
 	fl6.saddr = iph->saddr;
 	fl6.flowlabel = ip6_flowinfo(iph);
@@ -1236,7 +1235,6 @@ void ip6_redirect(struct sk_buff *skb, struct net *net, int oif, u32 mark)
 	memset(&fl6, 0, sizeof(fl6));
 	fl6.flowi6_oif = oif;
 	fl6.flowi6_mark = mark;
-	fl6.flowi6_flags = 0;
 	fl6.daddr = iph->daddr;
 	fl6.saddr = iph->saddr;
 	fl6.flowlabel = ip6_flowinfo(iph);
@@ -1258,7 +1256,6 @@ void ip6_redirect_no_header(struct sk_buff *skb, struct net *net, int oif,
 	memset(&fl6, 0, sizeof(fl6));
 	fl6.flowi6_oif = oif;
 	fl6.flowi6_mark = mark;
-	fl6.flowi6_flags = 0;
 	fl6.daddr = msg->dest;
 	fl6.saddr = iph->daddr;
 
-- 
cgit 


From 78b4c76b5f1371c6161f4d5f9f16e061d69170ae Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 09:26:38 -0700
Subject: staging: comedi: ni_at_ao: fix namespace clash of 'RSI' define

As pointed out by Fengguang Wu, the RSI define in this driver clashes
with the one in arch/x86/include/uapi/asm/ptrace-abi.h.

This define isn't currently used by the driver so just rename it to fix
the clash.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_ao.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index 4e4b227e091f..3545d294c4ae 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -110,7 +110,7 @@ Configuration options:
 #define BCD		0x01
 
 #define ATAO_2_RTSISHFT		0x06	/* W 8 */
-#define RSI		0x01
+#define ATAO_RTSISHFT_RSI	(1 << 0)
 
 #define ATAO_2_RTSISTRB		0x07	/* W 8 */
 
-- 
cgit 


From b20204310ad18516146264830bc7b840b6052d57 Mon Sep 17 00:00:00 2001
From: Jesper Juhl <jj@chaosbits.net>
Date: Mon, 30 Sep 2013 22:44:37 +0200
Subject: staging: lustre: Don't leak 'buffer' in cfs_get_environ()

If 'down_read_trylock' fails we'll curently leak the memory allocated to 'buffer'.
Fix the leak by simply kfree'ing 'buffer' before returning '-EDEADLK'.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c
index 6a26c6664f88..0bf8e5d87f1a 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-curproc.c
@@ -227,8 +227,10 @@ int cfs_get_environ(const char *key, char *value, int *val_len)
 	 * which is already holding mmap_sem for writes.  If some other
 	 * thread gets the write lock in the meantime, this thread will
 	 * block, but at least it won't deadlock on itself.  LU-1735 */
-	if (down_read_trylock(&mm->mmap_sem) == 0)
+	if (down_read_trylock(&mm->mmap_sem) == 0) {
+		kfree(buffer);
 		return -EDEADLK;
+	}
 	up_read(&mm->mmap_sem);
 
 	addr = mm->env_start;
-- 
cgit 


From 94488a7ebfbc95c4b8fbfe39644e97b926a550a7 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Fri, 27 Sep 2013 16:48:14 +0100
Subject: staging: vt6656: device.h convert sTimerCommand to delayed_work

timer to delay workqueue.
sTimerCommand -> run_command_work

sTimerCommand is very heavy on the system timer.

Improves over performance of driver and reduce the atomic
area of driver.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/device.h   |  2 +-
 drivers/staging/vt6656/main_usb.c |  5 ++++-
 drivers/staging/vt6656/wcmd.c     | 24 ++++++------------------
 drivers/staging/vt6656/wcmd.h     |  9 +--------
 drivers/staging/vt6656/wmgr.c     | 13 ++++---------
 5 files changed, 16 insertions(+), 37 deletions(-)

diff --git a/drivers/staging/vt6656/device.h b/drivers/staging/vt6656/device.h
index 8e396341c5e8..63806e8e3174 100644
--- a/drivers/staging/vt6656/device.h
+++ b/drivers/staging/vt6656/device.h
@@ -707,7 +707,7 @@ struct vnt_private {
 	u8 byBBCR09;
 
 	/* command timer */
-	struct timer_list sTimerCommand;
+	struct delayed_work run_command_work;
 
 	struct timer_list sTimerTxData;
 	unsigned long nTxDataTimeCout;
diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index 6f9d28182445..2bb5ab59f24f 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -702,6 +702,7 @@ vt6656_probe(struct usb_interface *intf, const struct usb_device_id *id)
 
 	device_set_options(pDevice);
 	spin_lock_init(&pDevice->lock);
+	INIT_DELAYED_WORK(&pDevice->run_command_work, vRunCommand);
 
 	pDevice->tx_80211 = device_dma0_tx_80211;
 	pDevice->vnt_mgmt.pAdapter = (void *) pDevice;
@@ -1076,7 +1077,9 @@ static int device_close(struct net_device *dev)
     MP_CLEAR_FLAG(pDevice, fMP_POST_WRITES);
     MP_CLEAR_FLAG(pDevice, fMP_POST_READS);
     pDevice->fKillEventPollingThread = true;
-    del_timer(&pDevice->sTimerCommand);
+
+	cancel_delayed_work_sync(&pDevice->run_command_work);
+
     del_timer(&pMgmt->sTimerSecondCallback);
 
     del_timer(&pDevice->sTimerTxData);
diff --git a/drivers/staging/vt6656/wcmd.c b/drivers/staging/vt6656/wcmd.c
index 0013cb73d83b..3b9bfcb40fcb 100644
--- a/drivers/staging/vt6656/wcmd.c
+++ b/drivers/staging/vt6656/wcmd.c
@@ -268,20 +268,14 @@ struct vnt_tx_mgmt *s_MgrMakeProbeRequest(struct vnt_private *pDevice,
 
 void vCommandTimerWait(struct vnt_private *pDevice, unsigned long MSecond)
 {
-
-	init_timer(&pDevice->sTimerCommand);
-
-	pDevice->sTimerCommand.data = (unsigned long)pDevice;
-	pDevice->sTimerCommand.function = (TimerFunction)vRunCommand;
-	pDevice->sTimerCommand.expires = RUN_AT((MSecond * HZ) / 1000);
-
-	add_timer(&pDevice->sTimerCommand);
-
-	return;
+	schedule_delayed_work(&pDevice->run_command_work,
+						msecs_to_jiffies(MSecond));
 }
 
-void vRunCommand(struct vnt_private *pDevice)
+void vRunCommand(struct work_struct *work)
 {
+	struct vnt_private *pDevice =
+		container_of(work, struct vnt_private, run_command_work.work);
 	struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
 	PWLAN_IE_SSID pItemSSID;
 	PWLAN_IE_SSID pItemSSIDCurr;
@@ -1156,14 +1150,8 @@ static int s_bClearBSSID_SCAN(struct vnt_private *pDevice)
 //mike add:reset command timer
 void vResetCommandTimer(struct vnt_private *pDevice)
 {
+	cancel_delayed_work_sync(&pDevice->run_command_work);
 
-	//delete timer
-	del_timer(&pDevice->sTimerCommand);
-	//init timer
-	init_timer(&pDevice->sTimerCommand);
-	pDevice->sTimerCommand.data = (unsigned long)pDevice;
-	pDevice->sTimerCommand.function = (TimerFunction)vRunCommand;
-	pDevice->sTimerCommand.expires = RUN_AT(HZ);
 	pDevice->cbFreeCmdQueue = CMD_Q_SIZE;
 	pDevice->uCmdDequeueIdx = 0;
 	pDevice->uCmdEnqueueIdx = 0;
diff --git a/drivers/staging/vt6656/wcmd.h b/drivers/staging/vt6656/wcmd.h
index db8b4cf7fd60..cd12558d5d3f 100644
--- a/drivers/staging/vt6656/wcmd.h
+++ b/drivers/staging/vt6656/wcmd.h
@@ -105,14 +105,7 @@ void vResetCommandTimer(struct vnt_private *);
 
 int bScheduleCommand(struct vnt_private *, CMD_CODE eCommand, u8 *pbyItem0);
 
-void vRunCommand(struct vnt_private *);
-
-/*
-void
-WCMDvCommandThread(
-    void * Context
-    );
-*/
+void vRunCommand(struct work_struct *work);
 
 void BSSvSecondTxData(struct vnt_private *);
 
diff --git a/drivers/staging/vt6656/wmgr.c b/drivers/staging/vt6656/wmgr.c
index a69b88313948..03629c562b19 100644
--- a/drivers/staging/vt6656/wmgr.c
+++ b/drivers/staging/vt6656/wmgr.c
@@ -218,11 +218,6 @@ void vMgrObjectInit(struct vnt_private *pDevice)
     pMgmt->sTimerSecondCallback.function = (TimerFunction)BSSvSecondCallBack;
     pMgmt->sTimerSecondCallback.expires = RUN_AT(HZ);
 
-    init_timer(&pDevice->sTimerCommand);
-    pDevice->sTimerCommand.data = (unsigned long)pDevice;
-    pDevice->sTimerCommand.function = (TimerFunction)vRunCommand;
-    pDevice->sTimerCommand.expires = RUN_AT(HZ);
-
     init_timer(&pDevice->sTimerTxData);
     pDevice->sTimerTxData.data = (unsigned long)pDevice;
     pDevice->sTimerTxData.function = (TimerFunction)BSSvSecondTxData;
@@ -844,8 +839,8 @@ static void s_vMgrRxAssocResponse(struct vnt_private *pDevice,
               pDevice->bwextstep3 = false;
               pDevice->bWPASuppWextEnabled = false;
 
-if(pMgmt->eCurrState == WMAC_STATE_ASSOC)
-      timer_expire(pDevice->sTimerCommand, 0);
+	if (pMgmt->eCurrState == WMAC_STATE_ASSOC)
+		schedule_delayed_work(&pDevice->run_command_work, 0);
 
     return;
 }
@@ -1127,7 +1122,7 @@ static void s_vMgrRxAuthenSequence_2(struct vnt_private *pDevice,
             if ( cpu_to_le16((*(pFrame->pwStatus))) == WLAN_MGMT_STATUS_SUCCESS ){
                 DBG_PRT(MSG_LEVEL_INFO, KERN_INFO "802.11 Authen (OPEN) Successful.\n");
                 pMgmt->eCurrState = WMAC_STATE_AUTH;
-	       timer_expire(pDevice->sTimerCommand, 0);
+		schedule_delayed_work(&pDevice->run_command_work, 0);
             }
             else {
                 DBG_PRT(MSG_LEVEL_INFO, KERN_INFO "802.11 Authen (OPEN) Failed.\n");
@@ -1302,7 +1297,7 @@ static void s_vMgrRxAuthenSequence_4(struct vnt_private *pDevice,
     if ( cpu_to_le16((*(pFrame->pwStatus))) == WLAN_MGMT_STATUS_SUCCESS ){
         DBG_PRT(MSG_LEVEL_INFO, KERN_INFO "802.11 Authen (SHAREDKEY) Successful.\n");
         pMgmt->eCurrState = WMAC_STATE_AUTH;
-        timer_expire(pDevice->sTimerCommand, 0);
+	schedule_delayed_work(&pDevice->run_command_work, 0);
     }
     else{
         DBG_PRT(MSG_LEVEL_INFO, KERN_INFO "802.11 Authen (SHAREDKEY) Failed.\n");
-- 
cgit 


From bd9a6dbada2263ffb26eef7a67283553092d2dee Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Fri, 27 Sep 2013 16:51:13 +0100
Subject: staging: vt6656: covert BSSvSecondCallBack to delayed_work.

timer to delay workqueue.
sTimerSecondCallback -> second_callback_work

The delayed work queue is declared in device.h

This timer is very heavy on the system.

Improves over performance of driver and reduce the atomic
area of driver.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/bssdb.c    | 7 ++++---
 drivers/staging/vt6656/bssdb.h    | 2 +-
 drivers/staging/vt6656/device.h   | 2 ++
 drivers/staging/vt6656/main_usb.c | 8 +++++---
 drivers/staging/vt6656/wcmd.c     | 4 ++--
 drivers/staging/vt6656/wmgr.c     | 5 -----
 drivers/staging/vt6656/wmgr.h     | 3 ---
 7 files changed, 14 insertions(+), 17 deletions(-)

diff --git a/drivers/staging/vt6656/bssdb.c b/drivers/staging/vt6656/bssdb.c
index ed1d609cc25f..ae0438a43ea5 100644
--- a/drivers/staging/vt6656/bssdb.c
+++ b/drivers/staging/vt6656/bssdb.c
@@ -813,8 +813,10 @@ void BSSvAddMulticastNode(struct vnt_private *pDevice)
  *
 -*/
 
-void BSSvSecondCallBack(struct vnt_private *pDevice)
+void BSSvSecondCallBack(struct work_struct *work)
 {
+	struct vnt_private *pDevice = container_of(work,
+			struct vnt_private, second_callback_work.work);
 	struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
 	int ii;
 	PWLAN_IE_SSID pItemSSID, pCurrSSID;
@@ -1126,8 +1128,7 @@ else {
 
     spin_unlock_irq(&pDevice->lock);
 
-    pMgmt->sTimerSecondCallback.expires = RUN_AT(HZ);
-    add_timer(&pMgmt->sTimerSecondCallback);
+	schedule_delayed_work(&pDevice->second_callback_work, HZ);
 }
 
 /*+
diff --git a/drivers/staging/vt6656/bssdb.h b/drivers/staging/vt6656/bssdb.h
index bce3b4654165..fc418555bc4d 100644
--- a/drivers/staging/vt6656/bssdb.h
+++ b/drivers/staging/vt6656/bssdb.h
@@ -262,7 +262,7 @@ void BSSvCreateOneNode(struct vnt_private *, u32 *puNodeIndex);
 void BSSvUpdateAPNode(struct vnt_private *, u16 *pwCapInfo,
 	PWLAN_IE_SUPP_RATES pItemRates, PWLAN_IE_SUPP_RATES pExtSuppRates);
 
-void BSSvSecondCallBack(struct vnt_private *);
+void BSSvSecondCallBack(struct work_struct *work);
 
 void BSSvUpdateNodeTxCounter(struct vnt_private *, PSStatCounter pStatistic,
 	u8 byTSR, u8 byPktNO);
diff --git a/drivers/staging/vt6656/device.h b/drivers/staging/vt6656/device.h
index 63806e8e3174..6052f4cdc768 100644
--- a/drivers/staging/vt6656/device.h
+++ b/drivers/staging/vt6656/device.h
@@ -708,6 +708,8 @@ struct vnt_private {
 
 	/* command timer */
 	struct delayed_work run_command_work;
+	/* One second callback */
+	struct delayed_work second_callback_work;
 
 	struct timer_list sTimerTxData;
 	unsigned long nTxDataTimeCout;
diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index 2bb5ab59f24f..605c6f390101 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -703,6 +703,7 @@ vt6656_probe(struct usb_interface *intf, const struct usb_device_id *id)
 	device_set_options(pDevice);
 	spin_lock_init(&pDevice->lock);
 	INIT_DELAYED_WORK(&pDevice->run_command_work, vRunCommand);
+	INIT_DELAYED_WORK(&pDevice->second_callback_work, BSSvSecondCallBack);
 
 	pDevice->tx_80211 = device_dma0_tx_80211;
 	pDevice->vnt_mgmt.pAdapter = (void *) pDevice;
@@ -985,7 +986,9 @@ static int  device_open(struct net_device *dev)
     tasklet_init(&pDevice->RxMngWorkItem, (void *)RXvMngWorkItem, (unsigned long)pDevice);
     tasklet_init(&pDevice->ReadWorkItem, (void *)RXvWorkItem, (unsigned long)pDevice);
     tasklet_init(&pDevice->EventWorkItem, (void *)INTvWorkItem, (unsigned long)pDevice);
-	add_timer(&pDevice->vnt_mgmt.sTimerSecondCallback);
+
+	schedule_delayed_work(&pDevice->second_callback_work, HZ);
+
 	pDevice->int_interval = 100;  /* max 100 microframes */
     pDevice->eEncryptionStatus = Ndis802_11EncryptionDisabled;
 
@@ -1079,8 +1082,7 @@ static int device_close(struct net_device *dev)
     pDevice->fKillEventPollingThread = true;
 
 	cancel_delayed_work_sync(&pDevice->run_command_work);
-
-    del_timer(&pMgmt->sTimerSecondCallback);
+	cancel_delayed_work_sync(&pDevice->second_callback_work);
 
     del_timer(&pDevice->sTimerTxData);
 
diff --git a/drivers/staging/vt6656/wcmd.c b/drivers/staging/vt6656/wcmd.c
index 3b9bfcb40fcb..debb87a6aba7 100644
--- a/drivers/staging/vt6656/wcmd.c
+++ b/drivers/staging/vt6656/wcmd.c
@@ -690,7 +690,7 @@ void vRunCommand(struct work_struct *work)
             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"eCommandState == WLAN_CMD_AP_MODE_START\n");
 
             if (pMgmt->eConfigMode == WMAC_CONFIG_AP) {
-                del_timer(&pMgmt->sTimerSecondCallback);
+		cancel_delayed_work_sync(&pDevice->second_callback_work);
                 pMgmt->eCurrState = WMAC_STATE_IDLE;
                 pMgmt->eCurrMode = WMAC_MODE_STANDBY;
                 pDevice->bLinkPass = false;
@@ -718,7 +718,7 @@ void vRunCommand(struct work_struct *work)
                 }
                 pDevice->bLinkPass = true;
                 ControlvMaskByte(pDevice,MESSAGE_REQUEST_MACREG,MAC_REG_PAPEDELAY,LEDSTS_STS,LEDSTS_INTER);
-                add_timer(&pMgmt->sTimerSecondCallback);
+		schedule_delayed_work(&pDevice->second_callback_work, HZ);
             }
             s_bCommandComplete(pDevice);
             break;
diff --git a/drivers/staging/vt6656/wmgr.c b/drivers/staging/vt6656/wmgr.c
index 03629c562b19..5a6a5bad0c42 100644
--- a/drivers/staging/vt6656/wmgr.c
+++ b/drivers/staging/vt6656/wmgr.c
@@ -213,11 +213,6 @@ void vMgrObjectInit(struct vnt_private *pDevice)
     pMgmt->wIBSSBeaconPeriod = DEFAULT_IBSS_BI;
     BSSvClearBSSList((void *) pDevice, false);
 
-    init_timer(&pMgmt->sTimerSecondCallback);
-    pMgmt->sTimerSecondCallback.data = (unsigned long)pDevice;
-    pMgmt->sTimerSecondCallback.function = (TimerFunction)BSSvSecondCallBack;
-    pMgmt->sTimerSecondCallback.expires = RUN_AT(HZ);
-
     init_timer(&pDevice->sTimerTxData);
     pDevice->sTimerTxData.data = (unsigned long)pDevice;
     pDevice->sTimerTxData.function = (TimerFunction)BSSvSecondTxData;
diff --git a/drivers/staging/vt6656/wmgr.h b/drivers/staging/vt6656/wmgr.h
index 5424c7f820ad..26ba47da467b 100644
--- a/drivers/staging/vt6656/wmgr.h
+++ b/drivers/staging/vt6656/wmgr.h
@@ -310,9 +310,6 @@ struct vnt_manager {
 	u8 byMgmtPacketPool[sizeof(struct vnt_tx_mgmt)
 		+ WLAN_A3FR_MAXLEN];
 
-	/* One second callback timer */
-	struct timer_list sTimerSecondCallback;
-
 	/* Temporarily Rx Mgmt Packet Descriptor */
 	struct vnt_rx_mgmt sRxPacket;
 
-- 
cgit 


From 81d720d3150dedebec423ac8efbdf6bc2055f1fc Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Fri, 27 Sep 2013 16:53:55 +0100
Subject: staging: vt6656: convert RXvWorkItem to work queue

Tasklet to workqueue.
ReadWorkItem -> read_work_item

Reduce atomic area of driver.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/device.h   | 2 +-
 drivers/staging/vt6656/dpc.c      | 6 ++++--
 drivers/staging/vt6656/dpc.h      | 2 +-
 drivers/staging/vt6656/main_usb.c | 8 +++++---
 4 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/vt6656/device.h b/drivers/staging/vt6656/device.h
index 6052f4cdc768..7e32a407d6f2 100644
--- a/drivers/staging/vt6656/device.h
+++ b/drivers/staging/vt6656/device.h
@@ -384,7 +384,7 @@ struct vnt_private {
 
 	struct tasklet_struct CmdWorkItem;
 	struct tasklet_struct EventWorkItem;
-	struct tasklet_struct ReadWorkItem;
+	struct work_struct read_work_item;
 	struct tasklet_struct RxMngWorkItem;
 
 	u32 rx_buf_sz;
diff --git a/drivers/staging/vt6656/dpc.c b/drivers/staging/vt6656/dpc.c
index 29381b466e20..1b0e6a7b93c7 100644
--- a/drivers/staging/vt6656/dpc.c
+++ b/drivers/staging/vt6656/dpc.c
@@ -1332,8 +1332,10 @@ static int s_bAPModeRxData(struct vnt_private *pDevice, struct sk_buff *skb,
     return true;
 }
 
-void RXvWorkItem(struct vnt_private *pDevice)
+void RXvWorkItem(struct work_struct *work)
 {
+	struct vnt_private *pDevice =
+		container_of(work, struct vnt_private, read_work_item);
 	int ntStatus;
 	struct vnt_rcb *pRCB = NULL;
 
@@ -1383,7 +1385,7 @@ void RXvFreeRCB(struct vnt_rcb *pRCB, int bReAllocSkb)
         (pDevice->bIsRxWorkItemQueued == false) ) {
 
         pDevice->bIsRxWorkItemQueued = true;
-        tasklet_schedule(&pDevice->ReadWorkItem);
+	schedule_work(&pDevice->read_work_item);
     }
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"<----RXFreeRCB %d %d\n",pDevice->NumRecvFreeList, pDevice->NumRecvMngList);
 }
diff --git a/drivers/staging/vt6656/dpc.h b/drivers/staging/vt6656/dpc.h
index 95388dc03ee3..aa81bed0de59 100644
--- a/drivers/staging/vt6656/dpc.h
+++ b/drivers/staging/vt6656/dpc.h
@@ -32,7 +32,7 @@
 #include "device.h"
 #include "wcmd.h"
 
-void RXvWorkItem(void *Context);
+void RXvWorkItem(struct work_struct *work);
 
 void RXvMngWorkItem(void *Context);
 
diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index 605c6f390101..17979578da53 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -704,6 +704,7 @@ vt6656_probe(struct usb_interface *intf, const struct usb_device_id *id)
 	spin_lock_init(&pDevice->lock);
 	INIT_DELAYED_WORK(&pDevice->run_command_work, vRunCommand);
 	INIT_DELAYED_WORK(&pDevice->second_callback_work, BSSvSecondCallBack);
+	INIT_WORK(&pDevice->read_work_item, RXvWorkItem);
 
 	pDevice->tx_80211 = device_dma0_tx_80211;
 	pDevice->vnt_mgmt.pAdapter = (void *) pDevice;
@@ -984,7 +985,6 @@ static int  device_open(struct net_device *dev)
 
     vMgrObjectInit(pDevice);
     tasklet_init(&pDevice->RxMngWorkItem, (void *)RXvMngWorkItem, (unsigned long)pDevice);
-    tasklet_init(&pDevice->ReadWorkItem, (void *)RXvWorkItem, (unsigned long)pDevice);
     tasklet_init(&pDevice->EventWorkItem, (void *)INTvWorkItem, (unsigned long)pDevice);
 
 	schedule_delayed_work(&pDevice->second_callback_work, HZ);
@@ -1004,7 +1004,7 @@ static int  device_open(struct net_device *dev)
      pDevice->bWPASuppWextEnabled = false;
     pDevice->byReAssocCount = 0;
 
-    RXvWorkItem(pDevice);
+	schedule_work(&pDevice->read_work_item);
     INTvWorkItem(pDevice);
 
     /* if WEP key already set by iwconfig but device not yet open */
@@ -1092,7 +1092,9 @@ static int device_close(struct net_device *dev)
         del_timer(&pDevice->TimerSQ3Tmax3);
     }
     tasklet_kill(&pDevice->RxMngWorkItem);
-    tasklet_kill(&pDevice->ReadWorkItem);
+
+	cancel_work_sync(&pDevice->read_work_item);
+
     tasklet_kill(&pDevice->EventWorkItem);
 
    pDevice->bRoaming = false;
-- 
cgit 


From a21fc2f5bef9031d6c7ace224c7061b9e53596e4 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Fri, 27 Sep 2013 16:55:45 +0100
Subject: staging: vt6656: covert RXvMngWorkItem to work queue

Tasklet to workqueue.
RxMngWorkItem -> rx_mng_work_item

Reduce atomic area of driver and dependency on system timer.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/device.h   | 2 +-
 drivers/staging/vt6656/dpc.c      | 6 ++++--
 drivers/staging/vt6656/dpc.h      | 2 +-
 drivers/staging/vt6656/main_usb.c | 5 +++--
 4 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/vt6656/device.h b/drivers/staging/vt6656/device.h
index 7e32a407d6f2..fa1cefb2f2af 100644
--- a/drivers/staging/vt6656/device.h
+++ b/drivers/staging/vt6656/device.h
@@ -385,7 +385,7 @@ struct vnt_private {
 	struct tasklet_struct CmdWorkItem;
 	struct tasklet_struct EventWorkItem;
 	struct work_struct read_work_item;
-	struct tasklet_struct RxMngWorkItem;
+	struct work_struct rx_mng_work_item;
 
 	u32 rx_buf_sz;
 	int multicast_limit;
diff --git a/drivers/staging/vt6656/dpc.c b/drivers/staging/vt6656/dpc.c
index 1b0e6a7b93c7..82d7c1d09ef6 100644
--- a/drivers/staging/vt6656/dpc.c
+++ b/drivers/staging/vt6656/dpc.c
@@ -559,7 +559,7 @@ int RXbBulkInProcessData(struct vnt_private *pDevice, struct vnt_rcb *pRCB,
             }
             if (pDevice->bIsRxMngWorkItemQueued == false) {
                 pDevice->bIsRxMngWorkItemQueued = true;
-                tasklet_schedule(&pDevice->RxMngWorkItem);
+		schedule_work(&pDevice->rx_mng_work_item);
             }
 
         }
@@ -1390,8 +1390,10 @@ void RXvFreeRCB(struct vnt_rcb *pRCB, int bReAllocSkb)
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"<----RXFreeRCB %d %d\n",pDevice->NumRecvFreeList, pDevice->NumRecvMngList);
 }
 
-void RXvMngWorkItem(struct vnt_private *pDevice)
+void RXvMngWorkItem(struct work_struct *work)
 {
+	struct vnt_private *pDevice =
+		container_of(work, struct vnt_private, rx_mng_work_item);
 	struct vnt_rcb *pRCB = NULL;
 	struct vnt_rx_mgmt *pRxPacket;
 	int bReAllocSkb = false;
diff --git a/drivers/staging/vt6656/dpc.h b/drivers/staging/vt6656/dpc.h
index aa81bed0de59..8d524345dfdb 100644
--- a/drivers/staging/vt6656/dpc.h
+++ b/drivers/staging/vt6656/dpc.h
@@ -34,7 +34,7 @@
 
 void RXvWorkItem(struct work_struct *work);
 
-void RXvMngWorkItem(void *Context);
+void RXvMngWorkItem(struct work_struct *work);
 
 void RXvFreeRCB(struct vnt_rcb *pRCB, int bReAllocSkb);
 
diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index 17979578da53..e5add185fc7c 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -705,6 +705,7 @@ vt6656_probe(struct usb_interface *intf, const struct usb_device_id *id)
 	INIT_DELAYED_WORK(&pDevice->run_command_work, vRunCommand);
 	INIT_DELAYED_WORK(&pDevice->second_callback_work, BSSvSecondCallBack);
 	INIT_WORK(&pDevice->read_work_item, RXvWorkItem);
+	INIT_WORK(&pDevice->rx_mng_work_item, RXvMngWorkItem);
 
 	pDevice->tx_80211 = device_dma0_tx_80211;
 	pDevice->vnt_mgmt.pAdapter = (void *) pDevice;
@@ -984,7 +985,7 @@ static int  device_open(struct net_device *dev)
     }
 
     vMgrObjectInit(pDevice);
-    tasklet_init(&pDevice->RxMngWorkItem, (void *)RXvMngWorkItem, (unsigned long)pDevice);
+
     tasklet_init(&pDevice->EventWorkItem, (void *)INTvWorkItem, (unsigned long)pDevice);
 
 	schedule_delayed_work(&pDevice->second_callback_work, HZ);
@@ -1091,8 +1092,8 @@ static int device_close(struct net_device *dev)
         del_timer(&pDevice->TimerSQ3Tmax2);
         del_timer(&pDevice->TimerSQ3Tmax3);
     }
-    tasklet_kill(&pDevice->RxMngWorkItem);
 
+	cancel_work_sync(&pDevice->rx_mng_work_item);
 	cancel_work_sync(&pDevice->read_work_item);
 
     tasklet_kill(&pDevice->EventWorkItem);
-- 
cgit 


From 6b8c28192da7e15adb9c23583603cae49b5980c5 Mon Sep 17 00:00:00 2001
From: Martin Berglund <martin@rogsta.net>
Date: Sat, 28 Sep 2013 21:03:24 +0200
Subject: Staging: vt6655: 80211mgr: Cleanup of brace coding style issues

Cleanup of a few brace coding style issues.

Signed-off-by: Martin Berglund <martin@rogsta.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6655/80211mgr.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/vt6655/80211mgr.c b/drivers/staging/vt6655/80211mgr.c
index 76c8490b0734..7949d58ad7d1 100644
--- a/drivers/staging/vt6655/80211mgr.c
+++ b/drivers/staging/vt6655/80211mgr.c
@@ -165,9 +165,8 @@ vMgrDecodeBeacon(
 			break;
 
 		case WLAN_EID_RSN:
-			if (pFrame->pRSN == NULL) {
+			if (pFrame->pRSN == NULL)
 				pFrame->pRSN = (PWLAN_IE_RSN)pItem;
-			}
 			break;
 		case WLAN_EID_RSN_WPA:
 			if (pFrame->pRSNWPA == NULL) {
@@ -382,9 +381,8 @@ vMgrDecodeAssocRequest(
 			break;
 
 		case WLAN_EID_RSN:
-			if (pFrame->pRSN == NULL) {
+			if (pFrame->pRSN == NULL)
 				pFrame->pRSN = (PWLAN_IE_RSN)pItem;
-			}
 			break;
 		case WLAN_EID_RSN_WPA:
 			if (pFrame->pRSNWPA == NULL) {
@@ -556,9 +554,8 @@ vMgrDecodeReassocRequest(
 			break;
 
 		case WLAN_EID_RSN:
-			if (pFrame->pRSN == NULL) {
+			if (pFrame->pRSN == NULL)
 				pFrame->pRSN = (PWLAN_IE_RSN)pItem;
-			}
 			break;
 		case WLAN_EID_RSN_WPA:
 			if (pFrame->pRSNWPA == NULL) {
@@ -742,9 +739,8 @@ vMgrDecodeProbeResponse(
 			break;
 
 		case WLAN_EID_RSN:
-			if (pFrame->pRSN == NULL) {
+			if (pFrame->pRSN == NULL)
 				pFrame->pRSN = (PWLAN_IE_RSN)pItem;
-			}
 			break;
 		case WLAN_EID_RSN_WPA:
 			if (pFrame->pRSNWPA == NULL) {
@@ -858,9 +854,9 @@ vMgrDecodeAuthen(
 	pItem = (PWLAN_IE)(WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3))
 			   + WLAN_AUTHEN_OFF_CHALLENGE);
 
-	if ((((unsigned char *)pItem) < (pFrame->pBuf + pFrame->len)) && (pItem->byElementID == WLAN_EID_CHALLENGE)) {
+	if (((unsigned char *)pItem) < (pFrame->pBuf + pFrame->len) &&
+	    pItem->byElementID == WLAN_EID_CHALLENGE)
 		pFrame->pChallenge = (PWLAN_IE_CHALLENGE)pItem;
-	}
 
 	return;
 }
-- 
cgit 


From e72f8762f8c8f81d4692c485dc85020b3ad160da Mon Sep 17 00:00:00 2001
From: Jesper Juhl <jj@chaosbits.net>
Date: Mon, 30 Sep 2013 22:22:11 +0200
Subject: staging: vt6655: don't leak when returning -EOPNOTSUPP in
 vt6655_hostap_ioctl

Make sure we always free(param); and remove a redundant "goto out;"
just before we'll hit the label anyway.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6655/hostap.c | 25 ++++++++++---------------
 1 file changed, 10 insertions(+), 15 deletions(-)

diff --git a/drivers/staging/vt6655/hostap.c b/drivers/staging/vt6655/hostap.c
index 8acff44a9e75..fdd63b60b7c0 100644
--- a/drivers/staging/vt6655/hostap.c
+++ b/drivers/staging/vt6655/hostap.c
@@ -720,7 +720,6 @@ static int hostap_get_encryption(PSDevice pDevice,
  * Return Value:
  *
  */
-
 int vt6655_hostap_ioctl(PSDevice pDevice, struct iw_point *p)
 {
 	struct viawget_hostapd_param *param;
@@ -755,8 +754,8 @@ int vt6655_hostap_ioctl(PSDevice pDevice, struct iw_point *p)
 		break;
 	case VIAWGET_HOSTAPD_SET_ASSOC_AP_ADDR:
 		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "VIAWGET_HOSTAPD_SET_ASSOC_AP_ADDR \n");
-		return -EOPNOTSUPP;
-		break;
+		ret = -EOPNOTSUPP;
+		goto out;
 	case VIAWGET_HOSTAPD_FLUSH:
 		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "VIAWGET_HOSTAPD_FLUSH \n");
 		spin_lock_irq(&pDevice->lock);
@@ -790,40 +789,36 @@ int vt6655_hostap_ioctl(PSDevice pDevice, struct iw_point *p)
 		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "VIAWGET_HOSTAPD_SET_FLAGS_STA \n");
 		ret = hostap_set_flags_sta(pDevice, param);
 		break;
-
 	case VIAWGET_HOSTAPD_MLME:
 		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "VIAWGET_HOSTAPD_MLME \n");
-		return -EOPNOTSUPP;
-
+		ret = -EOPNOTSUPP;
+		goto out;
 	case VIAWGET_HOSTAPD_SET_GENERIC_ELEMENT:
 		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "VIAWGET_HOSTAPD_SET_GENERIC_ELEMENT \n");
 		ret = hostap_set_generic_element(pDevice, param);
 		break;
-
 	case VIAWGET_HOSTAPD_SCAN_REQ:
 		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "VIAWGET_HOSTAPD_SCAN_REQ \n");
-		return -EOPNOTSUPP;
-
+		ret = -EOPNOTSUPP;
+		goto out;
 	case VIAWGET_HOSTAPD_STA_CLEAR_STATS:
 		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "VIAWGET_HOSTAPD_STA_CLEAR_STATS \n");
-		return -EOPNOTSUPP;
-
+		ret = -EOPNOTSUPP;
+		goto out;
 	default:
 		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "vt6655_hostap_ioctl: unknown cmd=%d\n",
 			(int)param->cmd);
-		return -EOPNOTSUPP;
-		break;
+		ret = -EOPNOTSUPP;
+		goto out;
 	}
 
 	if ((ret == 0) && ap_ioctl) {
 		if (copy_to_user(p->pointer, param, p->length)) {
 			ret = -EFAULT;
-			goto out;
 		}
 	}
 
 out:
 	kfree(param);
-
 	return ret;
 }
-- 
cgit 


From 9cf66a95c7c8003fe85d76794fcf127ad72c6e35 Mon Sep 17 00:00:00 2001
From: Adam Rall <adam.rall4@gmail.com>
Date: Sun, 29 Sep 2013 20:11:14 -0400
Subject: Staging: rtl8187se: fixed coding style issues

Fixed checkpatch.pl errors in r8180_dm.c.

Signed-off-by: Adam Rall <adam.rall4@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/r8180_dm.c | 80 ++++++++++++++++++------------------
 1 file changed, 39 insertions(+), 41 deletions(-)

diff --git a/drivers/staging/rtl8187se/r8180_dm.c b/drivers/staging/rtl8187se/r8180_dm.c
index b8f2ba010a04..d5a5f2089710 100644
--- a/drivers/staging/rtl8187se/r8180_dm.c
+++ b/drivers/staging/rtl8187se/r8180_dm.c
@@ -10,10 +10,10 @@ bool CheckHighPower(struct net_device *dev)
 	struct r8180_priv *priv = ieee80211_priv(dev);
 	struct ieee80211_device *ieee = priv->ieee80211;
 
-	if(!priv->bRegHighPowerMechanism)
+	if (!priv->bRegHighPowerMechanism)
 		return false;
 
-	if(ieee->state == IEEE80211_LINKED_SCANNING)
+	if (ieee->state == IEEE80211_LINKED_SCANNING)
 		return false;
 
 	return true;
@@ -57,15 +57,15 @@ void DoTxHighPower(struct net_device *dev)
 		/* Stevenl suggested that degrade 8dbm in high power sate. 2007-12-04 Isaiah */
 
 		priv->bToUpdateTxPwr = true;
-		u1bTmp= read_nic_byte(dev, CCK_TXAGC);
+		u1bTmp = read_nic_byte(dev, CCK_TXAGC);
 
 		/* If it never enter High Power. */
 		if (CckTxPwrIdx == u1bTmp) {
-			u1bTmp = (u1bTmp > 16) ? (u1bTmp -16): 0;  /* 8dbm */
+			u1bTmp = (u1bTmp > 16) ? (u1bTmp - 16) : 0;  /* 8dbm */
 			write_nic_byte(dev, CCK_TXAGC, u1bTmp);
 
-			u1bTmp= read_nic_byte(dev, OFDM_TXAGC);
-			u1bTmp = (u1bTmp > 16) ? (u1bTmp -16): 0;  /* 8dbm */
+			u1bTmp = read_nic_byte(dev, OFDM_TXAGC);
+			u1bTmp = (u1bTmp > 16) ? (u1bTmp - 16) : 0;  /* 8dbm */
 			write_nic_byte(dev, OFDM_TXAGC, u1bTmp);
 		}
 
@@ -74,12 +74,12 @@ void DoTxHighPower(struct net_device *dev)
 		if (priv->bToUpdateTxPwr) {
 			priv->bToUpdateTxPwr = false;
 			/* SD3 required. */
-			u1bTmp= read_nic_byte(dev, CCK_TXAGC);
+			u1bTmp = read_nic_byte(dev, CCK_TXAGC);
 			if (u1bTmp < CckTxPwrIdx) {
 				write_nic_byte(dev, CCK_TXAGC, CckTxPwrIdx);
 			}
 
-			u1bTmp= read_nic_byte(dev, OFDM_TXAGC);
+			u1bTmp = read_nic_byte(dev, OFDM_TXAGC);
 			if (u1bTmp < OfdmTxPwrIdx) {
 				write_nic_byte(dev, OFDM_TXAGC, OfdmTxPwrIdx);
 			}
@@ -97,7 +97,7 @@ void DoTxHighPower(struct net_device *dev)
 void rtl8180_tx_pw_wq(struct work_struct *work)
 {
 	struct delayed_work *dwork = to_delayed_work(work);
-	struct ieee80211_device *ieee = container_of(dwork,struct ieee80211_device,tx_pw_wq);
+	struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, tx_pw_wq);
 	struct net_device *dev = ieee->dev;
 
 	DoTxHighPower(dev);
@@ -149,11 +149,11 @@ void DIG_Zebra(struct net_device *dev)
 
 #if 1 /* lzm reserved 080826 */
 	AwakePeriodIn2Sec = (2000 - priv->DozePeriodInPast2Sec);
-	priv ->DozePeriodInPast2Sec = 0;
+	priv->DozePeriodInPast2Sec = 0;
 
 	if (AwakePeriodIn2Sec) {
-		OfdmFA1 = (u16)((OfdmFA1 * AwakePeriodIn2Sec) / 2000) ;
-		OfdmFA2 = (u16)((OfdmFA2 * AwakePeriodIn2Sec) / 2000) ;
+		OfdmFA1 = (u16)((OfdmFA1 * AwakePeriodIn2Sec) / 2000);
+		OfdmFA2 = (u16)((OfdmFA2 * AwakePeriodIn2Sec) / 2000);
 	} else {
 		;
 	}
@@ -210,7 +210,7 @@ void DynamicInitGain(struct net_device *dev)
 void rtl8180_hw_dig_wq(struct work_struct *work)
 {
 	struct delayed_work *dwork = to_delayed_work(work);
-	struct ieee80211_device *ieee = container_of(dwork,struct ieee80211_device,hw_dig_wq);
+	struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, hw_dig_wq);
 	struct net_device *dev = ieee->dev;
 	struct r8180_priv *priv = ieee80211_priv(dev);
 
@@ -234,7 +234,7 @@ int IncludedInSupportedRates(struct r8180_priv *priv, u8 TxRate)
 
 	rate_len = priv->ieee80211->current_network.rates_len;
 	rate_ex_len = priv->ieee80211->current_network.rates_ex_len;
-	for (idx=0; idx < rate_len; idx++) {
+	for (idx = 0; idx < rate_len; idx++) {
 		if ((priv->ieee80211->current_network.rates[idx] & RateMask) == NaiveTxRate) {
 			Found = 1;
 			goto found_rate;
@@ -247,7 +247,7 @@ int IncludedInSupportedRates(struct r8180_priv *priv, u8 TxRate)
 		}
 	}
 	return Found;
-	found_rate:
+found_rate:
 	return Found;
 }
 
@@ -397,7 +397,7 @@ void TxPwrTracking87SE(struct net_device *dev)
 
 	tmpu1Byte = read_nic_byte(dev, EN_LPF_CAL);
 	CurrentThermal = (tmpu1Byte & 0xf0) >> 4; /*[ 7:4]: thermal meter indication. */
-	CurrentThermal = (CurrentThermal > 0x0c) ? 0x0c:CurrentThermal;/* lzm add 080826 */
+	CurrentThermal = (CurrentThermal > 0x0c) ? 0x0c : CurrentThermal;/* lzm add 080826 */
 
 	if (CurrentThermal != priv->ThermalMeter) {
 		/* Update Tx Power level on each channel. */
@@ -513,7 +513,7 @@ void StaRateAdaptive87SE(struct net_device *dev)
 	 */
 
 	/*
- 	 *  11Mbps or 36Mbps
+	 * 11Mbps or 36Mbps
 	 * Check more times in these rate(key rates).
 	 */
 	if (priv->CurrentOperaRate == 22 || priv->CurrentOperaRate == 72)
@@ -542,7 +542,7 @@ void StaRateAdaptive87SE(struct net_device *dev)
 		}
 	} else if (CurrSignalStrength > -47 && (CurrRetryRate < 50)) {
 		/*
- 		 * 2For High Power
+		 * 2For High Power
 		 *
 		 * Return to highest data rate, if signal strength is good enough.
 		 * SignalStrength threshold(-50dbm) is for RTL8186.
@@ -577,8 +577,7 @@ void StaRateAdaptive87SE(struct net_device *dev)
 
 		if (bTryDown && (CurrSignalStrength < -75)) /* cable link */
 			priv->TryDownCountLowData += TryDownTh;
-	}
-	else if (priv->CurrentOperaRate == 96) {
+	} else if (priv->CurrentOperaRate == 96) {
 		/* 2For 48Mbps */
 		/* Air Link */
 		if (((CurrRetryRate > 48) && (priv->LastRetryRate > 47))) {
@@ -593,7 +592,7 @@ void StaRateAdaptive87SE(struct net_device *dev)
 			bTryUp = true;
 		}
 
-		if (bTryDown && (CurrSignalStrength < -75)){
+		if (bTryDown && (CurrSignalStrength < -75)) {
 			priv->TryDownCountLowData += TryDownTh;
 		}
 	} else if (priv->CurrentOperaRate == 72) {
@@ -618,7 +617,7 @@ void StaRateAdaptive87SE(struct net_device *dev)
 			bTryDown = true;
 		} else if (((CurrRetryRate > 33) && (priv->LastRetryRate > 32)) && (CurrSignalStrength > -82)) { /* Cable Link */
 			bTryDown = true;
-		} else if ((CurrRetryRate > (priv->LastRetryRate + 50)) && (priv->FailTxRateCount > 2 )) {
+		} else if ((CurrRetryRate > (priv->LastRetryRate + 50)) && (priv->FailTxRateCount > 2)) {
 			bTryDown = true;
 			priv->TryDownCountLowData += TryDownTh;
 		} else if ((CurrRetryRate < 20) && (priv->LastRetryRate < 21)) { /* TO DO: need to consider (RSSI) */
@@ -641,8 +640,7 @@ void StaRateAdaptive87SE(struct net_device *dev)
 		/* 2For 11Mbps */
 		if (CurrRetryRate > 95) {
 			bTryDown = true;
-		}
-		else if ((CurrRetryRate < 29) && (priv->LastRetryRate < 30)) { /*TO DO: need to consider (RSSI) */
+		} else if ((CurrRetryRate < 29) && (priv->LastRetryRate < 30)) { /*TO DO: need to consider (RSSI) */
 			bTryUp = true;
 		}
 	} else if (priv->CurrentOperaRate == 11) {
@@ -672,7 +670,7 @@ void StaRateAdaptive87SE(struct net_device *dev)
 	/* 1 Test Upgrading Tx Rate
 	 * Sometimes the cause of the low throughput (high retry rate) is the compatibility between the AP and NIC.
 	 * To test if the upper rate may cause lower retry rate, this mechanism randomly occurs to test upgrading tx rate.
-	 */ 
+	 */
 	if (!bTryUp && !bTryDown && (priv->TryupingCount == 0) && (priv->TryDownCountLowData == 0)
 		&& priv->CurrentOperaRate != priv->ieee80211->current_network.HighestOperaRate && priv->FailTxRateCount < 2) {
 		if (jiffies % (CurrRetryRate + 101) == 0) {
@@ -702,7 +700,7 @@ void StaRateAdaptive87SE(struct net_device *dev)
 			if (priv->CurrentOperaRate == 22)
 				bUpdateInitialGain = true;
 
-			/* 
+			/*
 			 * The difference in throughput between 48Mbps and 36Mbps is 8M.
 			 * So, we must be careful in this rate scale. Isaiah 2008-02-15.
 			 */
@@ -718,7 +716,7 @@ void StaRateAdaptive87SE(struct net_device *dev)
 			if (priv->CurrentOperaRate == 36) {
 				priv->bUpdateARFR = true;
 				write_nic_word(dev, ARFR, 0x0F8F); /* bypass 12/9/6 */
-			} else if(priv->bUpdateARFR) {
+			} else if (priv->bUpdateARFR) {
 				priv->bUpdateARFR = false;
 				write_nic_word(dev, ARFR, 0x0FFF); /* set 1M ~ 54Mbps. */
 			}
@@ -732,7 +730,7 @@ void StaRateAdaptive87SE(struct net_device *dev)
 		}
 	} else {
 		if (priv->TryupingCount > 0)
-			priv->TryupingCount --;
+			priv->TryupingCount--;
 	}
 
 	if (bTryDown) {
@@ -757,7 +755,7 @@ void StaRateAdaptive87SE(struct net_device *dev)
 			priv->CurrentOperaRate = GetDegradeTxRate(dev, priv->CurrentOperaRate);
 
 			/* Reduce chariot training time at weak signal strength situation. SD3 ED demand. */
-			if ((CurrSignalStrength < -80) && (priv->CurrentOperaRate > 72 )) {
+			if ((CurrSignalStrength < -80) && (priv->CurrentOperaRate > 72)) {
 				priv->CurrentOperaRate = 72;
 			}
 
@@ -781,8 +779,8 @@ void StaRateAdaptive87SE(struct net_device *dev)
 			priv->TryDownCountLowData--;
 	}
 
-	/* 
- 	 * Keep the Tx fail rate count to equal to 0x15 at most. 
+	/*
+	 * Keep the Tx fail rate count to equal to 0x15 at most.
 	 * Reduce the fail count at least to 10 sec if tx rate is tending stable.
 	 */
 	if (priv->FailTxRateCount >= 0x15 ||
@@ -803,14 +801,14 @@ void StaRateAdaptive87SE(struct net_device *dev)
 		if (u1bCck == CckTxPwrIdx) {
 			if (u1bOfdm != (OfdmTxPwrIdx + 2)) {
 			priv->bEnhanceTxPwr = true;
-			u1bOfdm = ((u1bOfdm + 2) > 35) ? 35: (u1bOfdm + 2);
+			u1bOfdm = ((u1bOfdm + 2) > 35) ? 35 : (u1bOfdm + 2);
 			write_nic_byte(dev, OFDM_TXAGC, u1bOfdm);
 			}
 		} else if (u1bCck < CckTxPwrIdx) {
 		/* case 2: enter high power */
 			if (!priv->bEnhanceTxPwr) {
 				priv->bEnhanceTxPwr = true;
-				u1bOfdm = ((u1bOfdm + 2) > 35) ? 35: (u1bOfdm + 2);
+				u1bOfdm = ((u1bOfdm + 2) > 35) ? 35 : (u1bOfdm + 2);
 				write_nic_byte(dev, OFDM_TXAGC, u1bOfdm);
 			}
 		}
@@ -826,7 +824,7 @@ void StaRateAdaptive87SE(struct net_device *dev)
 		/* case 2: enter high power */
 		else if (u1bCck < CckTxPwrIdx) {
 			priv->bEnhanceTxPwr = false;
-			u1bOfdm = ((u1bOfdm - 2) > 0) ? (u1bOfdm - 2): 0;
+			u1bOfdm = ((u1bOfdm - 2) > 0) ? (u1bOfdm - 2) : 0;
 			write_nic_byte(dev, OFDM_TXAGC, u1bOfdm);
 		}
 	}
@@ -851,7 +849,7 @@ SetInitialGain:
 				else
 					priv->InitialGain--;
 
-				printk("StaRateAdaptive87SE(): update init_gain to index %d for date rate %d\n",priv->InitialGain, priv->CurrentOperaRate);
+				printk("StaRateAdaptive87SE(): update init_gain to index %d for date rate %d\n", priv->InitialGain, priv->CurrentOperaRate);
 				UpdateInitialGain(dev);
 			}
 		} else { /* OFDM */
@@ -859,7 +857,7 @@ SetInitialGain:
 				priv->InitialGainBackUp = priv->InitialGain;
 
 				priv->InitialGain++;
-				printk("StaRateAdaptive87SE(): update init_gain to index %d for date rate %d\n",priv->InitialGain, priv->CurrentOperaRate);
+				printk("StaRateAdaptive87SE(): update init_gain to index %d for date rate %d\n", priv->InitialGain, priv->CurrentOperaRate);
 				UpdateInitialGain(dev);
 			}
 		}
@@ -904,7 +902,7 @@ void SwAntennaDiversityRxOk8185(struct net_device *dev, u8 SignalStrength)
 	} else { /* Initialization case. */
 		priv->AdRxSignalStrength = SignalStrength;
 	}
-	
+
 	if (priv->LastRxPktAntenna) /* Main antenna. */
 		priv->AdMainAntennaRxOkCnt++;
 	else	 /* Aux antenna. */
@@ -943,7 +941,7 @@ bool SetAntenna8185(struct net_device *dev, u8 u1bAntennaIndex)
 		break;
 	}
 
-	if(bAntennaSwitched)
+	if (bAntennaSwitched)
 		priv->CurrAntennaIndex = u1bAntennaIndex;
 
 	return bAntennaSwitched;
@@ -1000,8 +998,8 @@ void SwAntennaDiversity(struct net_device *dev)
 		priv->AdRxSsThreshold = (priv->AdRxSignalStrength + priv->AdRxSsBeforeSwitched) / 2;
 
 		priv->AdRxSsThreshold = (priv->AdRxSsThreshold > priv->AdMaxRxSsThreshold) ?
-					priv->AdMaxRxSsThreshold: priv->AdRxSsThreshold;
-		if(priv->AdRxSignalStrength < priv->AdRxSsBeforeSwitched) {
+					priv->AdMaxRxSsThreshold : priv->AdRxSsThreshold;
+		if (priv->AdRxSignalStrength < priv->AdRxSsBeforeSwitched) {
 		/* Rx signal strength is not improved after we swtiched antenna. => Swich back. */
 			/* Increase Antenna Diversity checking period due to bad decision. */
 			priv->AdCheckPeriod *= 2;
@@ -1083,7 +1081,7 @@ void SwAntennaDiversity(struct net_device *dev)
 
 					priv->AdRxSsThreshold = (priv->AdRxSsThreshold + priv->AdRxSignalStrength) / 2;
 					priv->AdRxSsThreshold = (priv->AdRxSsThreshold > priv->AdMaxRxSsThreshold) ?
-								priv->AdMaxRxSsThreshold: priv->AdRxSsThreshold;/* +by amy 080312 */
+								priv->AdMaxRxSsThreshold : priv->AdRxSsThreshold;/* +by amy 080312 */
 				}
 
 				/* Reduce Antenna Diversity checking period if possible. */
-- 
cgit 


From a376932a93961db2024e0def126d3a9c9b6f37fe Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Sat, 28 Sep 2013 12:58:33 +0300
Subject: staging: rtl8712: remove unneeded NULL check

We knew "peventbuf" was a valid pointer and "peventbuf + 2" is also
non-NULL.  I have removed the check.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8712/rtl8712_cmd.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/rtl8712/rtl8712_cmd.c b/drivers/staging/rtl8712/rtl8712_cmd.c
index 088647cdca99..53f247b324e0 100644
--- a/drivers/staging/rtl8712/rtl8712_cmd.c
+++ b/drivers/staging/rtl8712/rtl8712_cmd.c
@@ -471,11 +471,9 @@ void r8712_event_handle(struct _adapter *padapter, uint *peventbuf)
 	if (pevt_priv->event_seq > 127)
 		pevt_priv->event_seq = 0;
 	peventbuf = peventbuf + 2; /* move to event content, 8 bytes alignment */
-	if (peventbuf) {
-		event_callback = wlanevents[evt_code].event_callback;
-		if (event_callback)
-			event_callback(padapter, (u8 *)peventbuf);
-	}
+	event_callback = wlanevents[evt_code].event_callback;
+	if (event_callback)
+		event_callback(padapter, (u8 *)peventbuf);
 	pevt_priv->evt_done_cnt++;
 _abort_event_:
 	return;
-- 
cgit 


From 6170155d4affa14eb13cb789623d54baba2bf241 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Fri, 27 Sep 2013 17:12:59 -0700
Subject: staging/olpc: fix dependencies to fix build errors

Fix build errors when GPIO_CS5535=m and FB_OLPC_DCON=y
by preventing that kconfig combination.

These build errors are caused by having a kconfig bool symbol
(FB_OLPC_DCON_1) that depend on a tristate symbol (GPIO_CS5535),
but when the tristate symbol is =m, the bool symbol is =y.

drivers/built-in.o: In function `dcon_read_status_xo_1':
olpc_dcon_xo_1.c:(.text+0x359531): undefined reference to `cs5535_gpio_set'
drivers/built-in.o: In function `dcon_wiggle_xo_1':
olpc_dcon_xo_1.c:(.text+0x35959f): undefined reference to `cs5535_gpio_set'
olpc_dcon_xo_1.c:(.text+0x359610): undefined reference to `cs5535_gpio_clear'
drivers/built-in.o:olpc_dcon_xo_1.c:(.text+0x3596a1): more undefined references to `cs5535_gpio_clear' follow
drivers/built-in.o: In function `dcon_wiggle_xo_1':
olpc_dcon_xo_1.c:(.text+0x359708): undefined reference to `cs5535_gpio_set'
drivers/built-in.o: In function `dcon_init_xo_1':
olpc_dcon_xo_1.c:(.text+0x35989b): undefined reference to `cs5535_gpio_clear'
olpc_dcon_xo_1.c:(.text+0x3598b5): undefined reference to `cs5535_gpio_isset'
olpc_dcon_xo_1.c:(.text+0x359963): undefined reference to `cs5535_gpio_setup_event'
olpc_dcon_xo_1.c:(.text+0x359980): undefined reference to `cs5535_gpio_set_irq'
olpc_dcon_xo_1.c:(.text+0x359a36): undefined reference to `cs5535_gpio_set'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc:	Daniel Drake <dsd@laptop.org>
Cc:	Jens Frederich <jfrederich@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/olpc_dcon/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/olpc_dcon/Kconfig b/drivers/staging/olpc_dcon/Kconfig
index 2ff015d84509..28aa42c77a9f 100644
--- a/drivers/staging/olpc_dcon/Kconfig
+++ b/drivers/staging/olpc_dcon/Kconfig
@@ -1,6 +1,7 @@
 config FB_OLPC_DCON
 	tristate "One Laptop Per Child Display CONtroller support"
 	depends on OLPC && FB
+	depends on (GPIO_CS5535 || GPIO_CS5535=n)
 	select I2C
 	select BACKLIGHT_CLASS_DEVICE
 	---help---
-- 
cgit 


From 8e651bb93358f4e05250d4adf5f2f26486057c37 Mon Sep 17 00:00:00 2001
From: Martin Berglund <martin@rogsta.net>
Date: Fri, 27 Sep 2013 18:32:26 +0200
Subject: Staging: sm7xxfb: fixed line break coding style issues

Fixed coding style issues.

Signed-off-by: Martin Berglund <martin@rogsta.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/sm7xxfb/sm7xxfb.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/sm7xxfb/sm7xxfb.c b/drivers/staging/sm7xxfb/sm7xxfb.c
index 5c857618d905..6037ec180d90 100644
--- a/drivers/staging/sm7xxfb/sm7xxfb.c
+++ b/drivers/staging/sm7xxfb/sm7xxfb.c
@@ -259,8 +259,7 @@ static int smtc_setcolreg(unsigned regno, unsigned red, unsigned green,
 			if (sfb->fb.var.bits_per_pixel == 16) {
 				u32 *pal = sfb->fb.pseudo_palette;
 				val = chan_to_field(red, &sfb->fb.var.red);
-				val |= chan_to_field(green, \
-						&sfb->fb.var.green);
+				val |= chan_to_field(green, &sfb->fb.var.green);
 				val |= chan_to_field(blue, &sfb->fb.var.blue);
 #ifdef __BIG_ENDIAN
 				pal[regno] =
@@ -274,8 +273,7 @@ static int smtc_setcolreg(unsigned regno, unsigned red, unsigned green,
 			} else {
 				u32 *pal = sfb->fb.pseudo_palette;
 				val = chan_to_field(red, &sfb->fb.var.red);
-				val |= chan_to_field(green, \
-						&sfb->fb.var.green);
+				val |= chan_to_field(green, &sfb->fb.var.green);
 				val |= chan_to_field(blue, &sfb->fb.var.blue);
 #ifdef __BIG_ENDIAN
 				val =
@@ -508,9 +506,9 @@ static void sm7xx_set_timing(struct smtcfb_info *sfb)
 
 			/* init SEQ register SR30 - SR75 */
 			for (i = 0; i < SIZE_SR30_SR75; i++)
-				if (((i + 0x30) != 0x62) \
-					&& ((i + 0x30) != 0x6a) \
-					&& ((i + 0x30) != 0x6b))
+				if ((i + 0x30) != 0x62 &&
+				    (i + 0x30) != 0x6a &&
+				    (i + 0x30) != 0x6b)
 					smtc_seqw(i + 0x30,
 						VGAMode[j].Init_SR30_SR75[i]);
 
-- 
cgit 


From 28d31374d6356e15bdfbe9f24303305363ea7ad3 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sat, 28 Sep 2013 15:52:30 +0530
Subject: staging: imx-drm: Remove redundant of_match_ptr

'imx_ldb_dt_ids' is always compiled in. Hence of_match_ptr() is
not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/imx-drm/imx-ldb.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/imx-drm/imx-ldb.c b/drivers/staging/imx-drm/imx-ldb.c
index b81ed41766b9..926f49339b26 100644
--- a/drivers/staging/imx-drm/imx-ldb.c
+++ b/drivers/staging/imx-drm/imx-ldb.c
@@ -466,8 +466,7 @@ static int imx_ldb_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 	const struct of_device_id *of_id =
-			of_match_device(of_match_ptr(imx_ldb_dt_ids),
-					&pdev->dev);
+			of_match_device(imx_ldb_dt_ids, &pdev->dev);
 	struct device_node *child;
 	const u8 *edidp;
 	struct imx_ldb *imx_ldb;
-- 
cgit 


From d90ed81ac41fc0ef62bbc8aa66b3b2f3ef19427b Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 27 Sep 2013 15:20:26 +0530
Subject: staging: dgnc: Remove KERNEL_VERSION check

This check is not required.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgnc/dgnc_kcompat.h | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/staging/dgnc/dgnc_kcompat.h b/drivers/staging/dgnc/dgnc_kcompat.h
index ed85152b0534..eaec7e6a28e1 100644
--- a/drivers/staging/dgnc/dgnc_kcompat.h
+++ b/drivers/staging/dgnc/dgnc_kcompat.h
@@ -28,11 +28,6 @@
 #ifndef __DGNC_KCOMPAT_H
 #define __DGNC_KCOMPAT_H
 
-# ifndef KERNEL_VERSION
-#  define KERNEL_VERSION(a,b,c)  (((a) << 16) + ((b) << 8) + (c))
-# endif
-
-
 #if !defined(TTY_FLIPBUF_SIZE)
 # define TTY_FLIPBUF_SIZE 512
 #endif
-- 
cgit 


From 55c19aa072e9fb2c2414fd24f7f3f5640ac21d0d Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 27 Sep 2013 09:36:28 +0530
Subject: staging: cxt1e1: musycc.c: Use NULL instead of 0

Pointers should be assigned NULL instead of 0.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/cxt1e1/musycc.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/cxt1e1/musycc.c b/drivers/staging/cxt1e1/musycc.c
index 52b6d7f5fd47..a2a2af1f9d2e 100644
--- a/drivers/staging/cxt1e1/musycc.c
+++ b/drivers/staging/cxt1e1/musycc.c
@@ -745,7 +745,7 @@ musycc_init(ci_t *ci)
 #define INT_QUEUE_BOUNDARY  4
 
     regaddr = OS_kmalloc((INT_QUEUE_SIZE + 1) * sizeof(u_int32_t));
-    if (regaddr == 0)
+    if (!regaddr)
 	return ENOMEM;
     ci->iqd_p_saved = regaddr;      /* save orig value for free's usage */
     ci->iqd_p = (u_int32_t *) ((unsigned long) (regaddr + INT_QUEUE_BOUNDARY - 1) &
@@ -766,11 +766,11 @@ musycc_init(ci_t *ci)
 #define GROUP_BOUNDARY   0x800
 
 	regaddr = OS_kmalloc(sizeof(struct musycc_groupr) + GROUP_BOUNDARY);
-	if (regaddr == 0) {
+	if (!regaddr) {
 	    for (gchan = 0; gchan < i; gchan++) {
 		pi = &ci->port[gchan];
 		OS_kfree(pi->reg);
-		pi->reg = 0;
+		pi->reg = NULL;
 	    }
 	    return ENOMEM;
 	}
@@ -839,12 +839,12 @@ musycc_bh_tx_eom(mpi_t *pi, int gchan)
     volatile u_int32_t status;
 
     ch = pi->chan[gchan];
-    if (ch == 0 || ch->state != UP) {
+    if (!ch || ch->state != UP) {
 	if (cxt1e1_log_level >= LOG_ERROR)
 	    pr_info("%s: intr: xmit EOM on uninitialized channel %d\n",
 		    pi->up->devname, gchan);
     }
-    if (ch == 0 || ch->mdt == 0)
+    if (!ch || !ch->mdt)
 	return;                     /* note: mdt==0 implies a malloc()
 				     * failure w/in chan_up() routine */
 
@@ -907,7 +907,7 @@ musycc_bh_tx_eom(mpi_t *pi, int gchan)
 	ch->txd_irq_srv = md->snext;
 
 	md->data = 0;
-	if (md->mem_token != 0)	{
+	if (md->mem_token)	{
 	    /* upcount channel */
 	    atomic_sub(OS_mem_token_tlen(md->mem_token), &ch->tx_pending);
 	    /* upcount card */
@@ -931,7 +931,7 @@ musycc_bh_tx_eom(mpi_t *pi, int gchan)
 #endif                              /*** CONFIG_SBE_WAN256T3_NCOMM ***/
 
 	    OS_mem_token_free_irq(md->mem_token);
-	    md->mem_token = 0;
+	    md->mem_token = NULL;
 	}
 	md->status = 0;
 #ifdef RLD_TXFULL_DEBUG
@@ -1012,13 +1012,13 @@ musycc_bh_rx_eom(mpi_t *pi, int gchan)
     u_int32_t   error;
 
     ch = pi->chan[gchan];
-    if (ch == 0 || ch->state != UP) {
+    if (!ch || ch->state != UP) {
 	if (cxt1e1_log_level > LOG_ERROR)
 	    pr_info("%s: intr: receive EOM on uninitialized channel %d\n",
 		    pi->up->devname, gchan);
 	return;
     }
-    if (ch->mdr == 0)
+    if (!ch->mdr)
 	return;                     /* can this happen ? */
 
     for (;;) {
@@ -1566,18 +1566,18 @@ musycc_chan_down(ci_t *dummy, int channum)
     pi->regram->rmp[gchan] = 0;
     FLUSH_MEM_WRITE();
     for (i = 0; i < ch->txd_num; i++)
-	if (ch->mdt[i].mem_token != 0)
+	if (ch->mdt[i].mem_token)
 	    OS_mem_token_free(ch->mdt[i].mem_token);
 
     for (i = 0; i < ch->rxd_num; i++)
-	if (ch->mdr[i].mem_token != 0)
+	if (ch->mdr[i].mem_token)
 	    OS_mem_token_free(ch->mdr[i].mem_token);
 
     OS_kfree(ch->mdr);
-    ch->mdr = 0;
+    ch->mdr = NULL;
     ch->rxd_num = 0;
     OS_kfree(ch->mdt);
-    ch->mdt = 0;
+    ch->mdt = NULL;
     ch->txd_num = 0;
 
     musycc_update_timeslots(pi);
@@ -1746,7 +1746,7 @@ musycc_start_xmit(ci_t *ci, int channum, void *mem_token)
 #endif
 	    u |= (PADFILL_ENABLE | (ch->p.pad_fill_count << EXTRA_FLAGS));
 	}
-	md->mem_token = len ? 0 : mem_token;    /* Fill in mds on last
+	md->mem_token = len ? NULL : mem_token;    /* Fill in mds on last
 						 * segment, others set ZERO
 						 * so that entire token is
 						 * removed ONLY when ALL
-- 
cgit 


From ae919922909a397fdec7cb3de798da9bc4ff81e3 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 27 Sep 2013 09:36:29 +0530
Subject: staging: cxt1e1: sbecom_inline_linux.h: Return NULL instead of 0

Functions returning pointer should return NULL instead of 0.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/cxt1e1/sbecom_inline_linux.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/cxt1e1/sbecom_inline_linux.h b/drivers/staging/cxt1e1/sbecom_inline_linux.h
index 3c6d1c0fc6d6..ba3ff3efe063 100644
--- a/drivers/staging/cxt1e1/sbecom_inline_linux.h
+++ b/drivers/staging/cxt1e1/sbecom_inline_linux.h
@@ -73,7 +73,7 @@ OS_mem_token_alloc (size_t size)
     if (!skb)
     {
         //pr_warning("no mem in OS_mem_token_alloc !\n");
-        return 0;
+        return NULL;
     }
     return skb;
 }
@@ -103,7 +103,7 @@ OS_mem_token_data (void *token)
 static inline void *
 OS_mem_token_next (void *token)
 {
-    return 0;
+    return NULL;
 }
 
 
-- 
cgit 


From 0c5d465b4c615f38295540392e125fe9606414d8 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 27 Sep 2013 09:36:30 +0530
Subject: staging: cxt1e1: sbeid.c: Use NULL instead of 0

Pointers should be assigned NULL instead of 0.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/cxt1e1/sbeid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/cxt1e1/sbeid.c b/drivers/staging/cxt1e1/sbeid.c
index 791993fec96b..6ec51bccceb1 100644
--- a/drivers/staging/cxt1e1/sbeid.c
+++ b/drivers/staging/cxt1e1/sbeid.c
@@ -22,7 +22,7 @@
 char       *
 sbeid_get_bdname (ci_t *ci)
 {
-    char       *np = 0;
+    char       *np = NULL;
 
     switch (ci->brd_id)
     {
-- 
cgit 


From 86a3cdaf12d940b091568d6ff7c5203ad12da061 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 27 Sep 2013 09:36:31 +0530
Subject: staging: cxt1e1: linux.c: Use NULL instead of 0

Pointers should be assigned NULL instead of 0.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/cxt1e1/linux.c | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/cxt1e1/linux.c b/drivers/staging/cxt1e1/linux.c
index 142691c8d8d1..598e6ba96955 100644
--- a/drivers/staging/cxt1e1/linux.c
+++ b/drivers/staging/cxt1e1/linux.c
@@ -133,7 +133,7 @@ getuserbychan (int channum)
     mch_t      *ch;
 
     ch = c4_find_chan (channum);
-    return ch ? ch->user : 0;
+    return ch ? ch->user : NULL;
 }
 
 
@@ -245,7 +245,7 @@ c4_wq_port_cleanup (mpi_t *pi)
     {
         destroy_workqueue (pi->wq_port);        /* this also calls
                                                  * flush_workqueue() */
-        pi->wq_port = 0;
+        pi->wq_port = NULL;
     }
 }
 
@@ -420,7 +420,7 @@ create_chan (struct net_device *ndev, ci_t *ci,
     int         ret;
 
     if (c4_find_chan (cp->channum))
-        return 0;                   /* channel already exists */
+        return NULL;                   /* channel already exists */
 
     {
         struct c4_priv *priv;
@@ -430,14 +430,14 @@ create_chan (struct net_device *ndev, ci_t *ci,
         if (!priv)
         {
             pr_warning("%s: no memory for net_device !\n", ci->devname);
-            return 0;
+	    return NULL;
         }
         dev = alloc_hdlcdev (priv);
         if (!dev)
         {
             pr_warning("%s: no memory for hdlc_device !\n", ci->devname);
             OS_kfree (priv);
-            return 0;
+	    return NULL;
         }
         priv->ci = ci;
         priv->channum = cp->channum;
@@ -496,7 +496,7 @@ create_chan (struct net_device *ndev, ci_t *ci,
             pr_info("%s: create_chan[%d] registration error = %d.\n",
                     ci->devname, cp->channum, ret);
         free_netdev (dev);          /* cleanup */
-        return 0;                   /* failed to register */
+	return NULL;		/* failed to register */
     }
     return dev;
 }
@@ -744,7 +744,7 @@ do_deluser (struct net_device *ndev, int lockit)
         ch = c4_find_chan (channum);
         if (ch == NULL)
             return -ENOENT;
-        ch->user = 0;               /* will be freed, below */
+	ch->user = NULL;	/* will be freed, below */
     }
 
     if (lockit)
@@ -959,7 +959,7 @@ c4_add_dev (hdw_info_t *hi, int brdno, unsigned long f0, unsigned long f1,
     {
         pr_warning("%s: no memory for struct net_device !\n", hi->devname);
         error_flag = ENOMEM;
-        return 0;
+	return NULL;
     }
     ci = (ci_t *)(netdev_priv(ndev));
     ndev->irq = irq0;
@@ -970,7 +970,7 @@ c4_add_dev (hdw_info_t *hi, int brdno, unsigned long f0, unsigned long f1,
     c4_list = ci;
     ci->brdno = ci->next ? ci->next->brdno + 1 : 0;
 
-    if (CI == 0)
+    if (!CI)
         CI = ci;                    /* DEBUG, only board 0 usage */
 
     strcpy (ci->devname, hi->devname);
@@ -996,7 +996,7 @@ c4_add_dev (hdw_info_t *hi, int brdno, unsigned long f0, unsigned long f1,
         OS_kfree (netdev_priv(ndev));
         OS_kfree (ndev);
         error_flag = ENODEV;
-        return 0;
+	return NULL;
     }
     /*************************************************************
      *  int request_irq(unsigned int irq,
@@ -1022,7 +1022,7 @@ c4_add_dev (hdw_info_t *hi, int brdno, unsigned long f0, unsigned long f1,
         OS_kfree (netdev_priv(ndev));
         OS_kfree (ndev);
         error_flag = EIO;
-        return 0;
+	return NULL;
     }
 #ifdef CONFIG_SBE_PMCC4_NCOMM
     if (request_irq (irq1, &c4_ebus_interrupt, IRQF_SHARED, ndev->name, ndev))
@@ -1033,7 +1033,7 @@ c4_add_dev (hdw_info_t *hi, int brdno, unsigned long f0, unsigned long f1,
         OS_kfree (netdev_priv(ndev));
         OS_kfree (ndev);
         error_flag = EIO;
-        return 0;
+	return NULL;
     }
 #endif
 
@@ -1091,7 +1091,7 @@ c4_add_dev (hdw_info_t *hi, int brdno, unsigned long f0, unsigned long f1,
         free_irq (irq0, ndev);
         OS_kfree (netdev_priv(ndev));
         OS_kfree (ndev);
-        return 0;                   /* failure, error_flag is set */
+	return NULL;		/* failure, error_flag is set */
     }
     return ndev;
 }
-- 
cgit 


From 95f5632d87ff86046367eb86e2ffbf74d7d103bf Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 27 Sep 2013 09:36:32 +0530
Subject: staging: cxt1e1: sbeproc.c: Use NULL instead of 0

Pointers should be assigned NULL instead of 0.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/cxt1e1/sbeproc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/cxt1e1/sbeproc.c b/drivers/staging/cxt1e1/sbeproc.c
index 9361dd8ce125..353c001d3fbe 100644
--- a/drivers/staging/cxt1e1/sbeproc.c
+++ b/drivers/staging/cxt1e1/sbeproc.c
@@ -44,7 +44,7 @@ void sbecom_proc_brd_cleanup(ci_t *ci)
 static void sbecom_proc_get_brdinfo(ci_t *ci, struct sbe_brd_info *bip)
 {
 	hdw_info_t *hi = &hdw_info[ci->brdno];
-	u_int8_t *bsn = 0;
+	u_int8_t *bsn = NULL;
 
 	switch (hi->promfmt)
 	{
-- 
cgit 


From bb0a9747b44371d2c98f39afe7542934068f2ea7 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 27 Sep 2013 09:36:33 +0530
Subject: staging: cxt1e1: hwprobe.c: Use NULL instead of 0

Pointers should be assigned NULL instead of 0.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/cxt1e1/hwprobe.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/cxt1e1/hwprobe.c b/drivers/staging/cxt1e1/hwprobe.c
index 53e923701ae6..2f4f051a7c36 100644
--- a/drivers/staging/cxt1e1/hwprobe.c
+++ b/drivers/staging/cxt1e1/hwprobe.c
@@ -157,7 +157,7 @@ prep_hdw_info (void)
         hi->pci_slot = 0xff;
         hi->pci_pin[0] = 0;
         hi->pci_pin[1] = 0;
-        hi->ndev = 0;
+        hi->ndev = NULL;
         hi->addr[0] = 0L;
         hi->addr[1] = 0L;
         hi->addr_mapped[0] = 0L;
@@ -328,7 +328,7 @@ c4hw_attach_all (void)
             break;
         for (j = 0; j < 2; j++)
         {
-            if (request_mem_region (hi->addr[j], hi->len[j], hi->devname) == 0)
+	    if (!request_mem_region (hi->addr[j], hi->len[j], hi->devname))
             {
                 pr_warning("%s: memory in use, addr=0x%lx, len=0x%lx ?\n",
                            hi->devname, hi->addr[j], hi->len[j]);
-- 
cgit 


From c11afaae49ecff435efb534d05074959cce1757a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 27 Sep 2013 09:36:34 +0530
Subject: staging: cxt1e1: sbecrc.c: Use NULL instead of 0

Pointers should be assigned NULL instead of 0.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/cxt1e1/sbecrc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/cxt1e1/sbecrc.c b/drivers/staging/cxt1e1/sbecrc.c
index 87512a53f720..81fa8a3a462c 100644
--- a/drivers/staging/cxt1e1/sbecrc.c
+++ b/drivers/staging/cxt1e1/sbecrc.c
@@ -88,7 +88,7 @@ sbeCrc(u_int8_t *buffer,          /* data buffer to crc */
 	u_int32_t initialCrc,      /* starting CRC */
 	u_int32_t *result)
 {
-	u_int32_t     *tbl = 0;
+	u_int32_t     *tbl = NULL;
 	u_int32_t      temp1, temp2, crc;
 
 	/*
@@ -102,7 +102,7 @@ sbeCrc(u_int8_t *buffer,          /* data buffer to crc */
 		genCrcTable(tbl);
 #else
 		tbl = (u_int32_t *) OS_kmalloc(CRC_TABLE_ENTRIES * sizeof(u_int32_t));
-		if (tbl == 0) {
+		if (!tbl) {
 			*result = 0;   /* dummy up return value due to malloc
 					* failure */
 			return;
-- 
cgit 


From 360d26e420786010b79bafd028907ada5db17e11 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 27 Sep 2013 09:36:35 +0530
Subject: staging: cxt1e1: pmcc4_drv.c: Use NULL instead of 0

Pointers should be assigned NULL instead of 0.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/cxt1e1/pmcc4_drv.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/cxt1e1/pmcc4_drv.c b/drivers/staging/cxt1e1/pmcc4_drv.c
index 2383c609bf39..4028ea11c442 100644
--- a/drivers/staging/cxt1e1/pmcc4_drv.c
+++ b/drivers/staging/cxt1e1/pmcc4_drv.c
@@ -70,7 +70,7 @@ extern void *memset (void *s, int c, size_t n);
 #endif
 
 int         drvr_state = SBE_DRVR_INIT;
-ci_t       *c4_list = 0;
+ci_t       *c4_list = NULL;
 ci_t       *CI;                 /* dummy pointer to board ZEROE's data -
                                  * DEBUG USAGE */
 
@@ -119,7 +119,7 @@ c4_find_chan (int channum)
                         return ch;
                 }
             }
-    return 0;
+    return NULL;
 }
 
 
@@ -145,7 +145,7 @@ c4_new (void *hi)
         pr_warning("failed CI malloc, size %u.\n",
                    (unsigned int) sizeof (ci_t));
 
-    if (CI == 0)
+    if (!CI)
         CI = ci;                    /* DEBUG, only board 0 usage */
     return ci;
 }
@@ -831,7 +831,7 @@ c4_musycc_rw (ci_t *ci, struct c4_musycc_param *mcp)
 {
     mpi_t      *pi;
     volatile u_int32_t *dph;    /* hardware implemented register */
-    u_int32_t  *dpr = 0;        /* RAM image of registers for group command
+    u_int32_t *dpr = NULL;	/* RAM image of registers for group command
                                  * usage */
     int         offset = mcp->offset % 0x800;   /* group relative address
                                                  * offset, mcp->portnum is
@@ -1060,7 +1060,7 @@ c4_new_chan (ci_t *ci, int portnum, int channum, void *user)
     }
 
     /* save off interface assignments which bound a board */
-    if (ci->first_if == 0)          /* first channel registered is assumed to
+    if (!ci->first_if)		/* first channel registered is assumed to
                                      * be the lowest channel */
     {
         ci->first_if = ci->last_if = user;
@@ -1392,7 +1392,7 @@ c4_chan_up (ci_t *ci, int channum)
         md->status = HOST_TX_OWNED; /* Host owns TX descriptor ** CODING
                                      * NOTE: HOST_TX_OWNED = 0 so no need to
                                      * byteSwap */
-        md->mem_token = 0;
+        md->mem_token = NULL;
         md->data = 0;
         if (i == (txnum - 1))
         {
@@ -1448,10 +1448,10 @@ errfree:
         OS_mem_token_free (ch->mdr[i].mem_token);
     }
     OS_kfree (ch->mdt);
-    ch->mdt = 0;
+    ch->mdt = NULL;
     ch->txd_num = 0;
     OS_kfree (ch->mdr);
-    ch->mdr = 0;
+    ch->mdr = NULL;
     ch->rxd_num = 0;
     ch->state = DOWN;
     return ENOBUFS;
-- 
cgit 


From b6689c225ef53079e33c93b575b6b982e587b98d Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 27 Sep 2013 09:36:36 +0530
Subject: staging: cxt1e1: musycc.c: Return negative error codes

Return negative error codes as is followed in the rest of the
kernel.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/cxt1e1/musycc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/cxt1e1/musycc.c b/drivers/staging/cxt1e1/musycc.c
index a2a2af1f9d2e..0ba8c3ae673b 100644
--- a/drivers/staging/cxt1e1/musycc.c
+++ b/drivers/staging/cxt1e1/musycc.c
@@ -746,7 +746,7 @@ musycc_init(ci_t *ci)
 
     regaddr = OS_kmalloc((INT_QUEUE_SIZE + 1) * sizeof(u_int32_t));
     if (!regaddr)
-	return ENOMEM;
+	return -ENOMEM;
     ci->iqd_p_saved = regaddr;      /* save orig value for free's usage */
     ci->iqd_p = (u_int32_t *) ((unsigned long) (regaddr + INT_QUEUE_BOUNDARY - 1) &
 			       (~(INT_QUEUE_BOUNDARY - 1)));    /* this calculates
@@ -772,7 +772,7 @@ musycc_init(ci_t *ci)
 		OS_kfree(pi->reg);
 		pi->reg = NULL;
 	    }
-	    return ENOMEM;
+	    return -ENOMEM;
 	}
 	pi->regram_saved = regaddr; /* save orig value for free's usage */
 	pi->regram = (struct musycc_groupr *) ((unsigned long) (regaddr + GROUP_BOUNDARY - 1) &
-- 
cgit 


From 8654cda06c74a29ed956db8bd29ecbaf3cf9b464 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 27 Sep 2013 09:36:37 +0530
Subject: staging: cxt1e1: hwprobe.c: Return negative error codes

Return negative error codes as is followed in the rest of the
kernel.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/cxt1e1/hwprobe.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/cxt1e1/hwprobe.c b/drivers/staging/cxt1e1/hwprobe.c
index 2f4f051a7c36..02b4f8f1aca5 100644
--- a/drivers/staging/cxt1e1/hwprobe.c
+++ b/drivers/staging/cxt1e1/hwprobe.c
@@ -309,7 +309,7 @@ c4hw_attach_all (void)
     if (!found)
     {
         pr_warning("No boards found\n");
-        return ENODEV;
+        return -ENODEV;
     }
     /* sanity check for consistent hardware found */
     for (i = 0, hi = hdw_info; i < MAX_BOARDS; i++, hi++)
@@ -318,7 +318,7 @@ c4hw_attach_all (void)
         {
             pr_warning("%s: something very wrong with pci_get_device\n",
                        hi->devname);
-            return EIO;
+            return -EIO;
         }
     }
     /* bring board's memory regions on/line */
@@ -333,7 +333,7 @@ c4hw_attach_all (void)
                 pr_warning("%s: memory in use, addr=0x%lx, len=0x%lx ?\n",
                            hi->devname, hi->addr[j], hi->len[j]);
                 cleanup_ioremap ();
-                return ENOMEM;
+                return -ENOMEM;
             }
             hi->addr_mapped[j] = (unsigned long) ioremap (hi->addr[j], hi->len[j]);
             if (!hi->addr_mapped[j])
@@ -341,7 +341,7 @@ c4hw_attach_all (void)
                 pr_warning("%s: ioremap fails, addr=0x%lx, len=0x%lx ?\n",
                            hi->devname, hi->addr[j], hi->len[j]);
                 cleanup_ioremap ();
-                return ENOMEM;
+                return -ENOMEM;
             }
 #ifdef SBE_MAP_DEBUG
             pr_warning("%s: io remapped from phys %x to virt %x\n",
@@ -365,7 +365,7 @@ c4hw_attach_all (void)
                        hi->devname, i, hi->pci_slot);
             cleanup_devs ();
             cleanup_ioremap ();
-            return EIO;
+            return -EIO;
         }
         pci_set_master (hi->pdev[0]);
         pci_set_master (hi->pdev[1]);
-- 
cgit 


From bcf7bea44e50e85e8401f8667ecc8c79a3708e58 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 27 Sep 2013 09:36:38 +0530
Subject: staging: cxt1e1: linux.c: Return negative error codes

Return negative error codes as is followed in the rest of the
kernel.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/cxt1e1/linux.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/cxt1e1/linux.c b/drivers/staging/cxt1e1/linux.c
index 598e6ba96955..9b483739881a 100644
--- a/drivers/staging/cxt1e1/linux.c
+++ b/drivers/staging/cxt1e1/linux.c
@@ -230,7 +230,7 @@ c4_wq_port_init (mpi_t *pi)
             __func__, name, pi->portnum); /* RLD DEBUG */
 #endif
     if (!(pi->wq_port = create_singlethread_workqueue (name)))
-        return ENOMEM;
+        return -ENOMEM;
     return 0;                       /* success */
 }
 
-- 
cgit 


From 74475ede784d4a649592751e4d85bb8ff679e1e0 Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Tue, 24 Sep 2013 12:47:53 +0800
Subject: usb: chipidea: move PHY operation to core

PHY operations are common, so move them to core.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/chipidea/core.c | 57 ++++++++++++++++++++++++++++++++++++++++-----
 drivers/usb/chipidea/udc.c  | 39 +------------------------------
 2 files changed, 52 insertions(+), 44 deletions(-)

diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index c47a6b46dea3..b20286de1436 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -474,6 +474,33 @@ static void ci_get_otg_capable(struct ci_hdrc *ci)
 	}
 }
 
+static int ci_usb_phy_init(struct ci_hdrc *ci)
+{
+	if (ci->platdata->phy) {
+		ci->transceiver = ci->platdata->phy;
+		return usb_phy_init(ci->transceiver);
+	} else {
+		ci->global_phy = true;
+		ci->transceiver = usb_get_phy(USB_PHY_TYPE_USB2);
+		if (IS_ERR(ci->transceiver))
+			ci->transceiver = NULL;
+
+		return 0;
+	}
+}
+
+static void ci_usb_phy_destroy(struct ci_hdrc *ci)
+{
+	if (!ci->transceiver)
+		return;
+
+	otg_set_peripheral(ci->transceiver->otg, NULL);
+	if (ci->global_phy)
+		usb_put_phy(ci->transceiver);
+	else
+		usb_phy_shutdown(ci->transceiver);
+}
+
 static int ci_hdrc_probe(struct platform_device *pdev)
 {
 	struct device	*dev = &pdev->dev;
@@ -501,10 +528,6 @@ static int ci_hdrc_probe(struct platform_device *pdev)
 
 	ci->dev = dev;
 	ci->platdata = dev->platform_data;
-	if (ci->platdata->phy)
-		ci->transceiver = ci->platdata->phy;
-	else
-		ci->global_phy = true;
 
 	ret = hw_device_init(ci, base);
 	if (ret < 0) {
@@ -512,12 +535,19 @@ static int ci_hdrc_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
+	ret = ci_usb_phy_init(ci);
+	if (ret) {
+		dev_err(dev, "unable to init phy: %d\n", ret);
+		return ret;
+	}
+
 	ci->hw_bank.phys = res->start;
 
 	ci->irq = platform_get_irq(pdev, 0);
 	if (ci->irq < 0) {
 		dev_err(dev, "missing IRQ\n");
-		return -ENODEV;
+		ret = -ENODEV;
+		goto destroy_phy;
 	}
 
 	ci_get_otg_capable(ci);
@@ -536,11 +566,23 @@ static int ci_hdrc_probe(struct platform_device *pdev)
 		ret = ci_hdrc_gadget_init(ci);
 		if (ret)
 			dev_info(dev, "doesn't support gadget\n");
+		if (!ret && ci->transceiver) {
+			ret = otg_set_peripheral(ci->transceiver->otg,
+							&ci->gadget);
+			/*
+			 * If we implement all USB functions using chipidea drivers,
+			 * it doesn't need to call above API, meanwhile, if we only
+			 * use gadget function, calling above API is useless.
+			 */
+			if (ret && ret != -ENOTSUPP)
+				goto destroy_phy;
+		}
 	}
 
 	if (!ci->roles[CI_ROLE_HOST] && !ci->roles[CI_ROLE_GADGET]) {
 		dev_err(dev, "no supported roles\n");
-		return -ENODEV;
+		ret = -ENODEV;
+		goto destroy_phy;
 	}
 
 	if (ci->is_otg) {
@@ -593,6 +635,8 @@ static int ci_hdrc_probe(struct platform_device *pdev)
 	free_irq(ci->irq, ci);
 stop:
 	ci_role_destroy(ci);
+destroy_phy:
+	ci_usb_phy_destroy(ci);
 
 	return ret;
 }
@@ -604,6 +648,7 @@ static int ci_hdrc_remove(struct platform_device *pdev)
 	dbg_remove_files(ci);
 	free_irq(ci->irq, ci);
 	ci_role_destroy(ci);
+	ci_usb_phy_destroy(ci);
 	kfree(ci->hw_bank.regmap);
 
 	return 0;
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index b157c95f7a36..2bb7d18ef2d5 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -20,7 +20,6 @@
 #include <linux/pm_runtime.h>
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
-#include <linux/usb/otg.h>
 #include <linux/usb/chipidea.h>
 
 #include "ci.h"
@@ -1790,34 +1789,9 @@ static int udc_start(struct ci_hdrc *ci)
 
 	ci->gadget.ep0 = &ci->ep0in->ep;
 
-	if (ci->global_phy) {
-		ci->transceiver = usb_get_phy(USB_PHY_TYPE_USB2);
-		if (IS_ERR(ci->transceiver))
-			ci->transceiver = NULL;
-	}
-
-	if (ci->platdata->flags & CI_HDRC_REQUIRE_TRANSCEIVER) {
-		if (ci->transceiver == NULL) {
-			retval = -ENODEV;
-			goto destroy_eps;
-		}
-	}
-
-	if (ci->transceiver) {
-		retval = otg_set_peripheral(ci->transceiver->otg,
-						&ci->gadget);
-		/*
-		 * If we implement all USB functions using chipidea drivers,
-		 * it doesn't need to call above API, meanwhile, if we only
-		 * use gadget function, calling above API is useless.
-		 */
-		if (retval && retval != -ENOTSUPP)
-			goto put_transceiver;
-	}
-
 	retval = usb_add_gadget_udc(dev, &ci->gadget);
 	if (retval)
-		goto remove_trans;
+		goto destroy_eps;
 
 	pm_runtime_no_callbacks(&ci->gadget.dev);
 	pm_runtime_enable(&ci->gadget.dev);
@@ -1827,17 +1801,6 @@ static int udc_start(struct ci_hdrc *ci)
 
 	return retval;
 
-remove_trans:
-	if (ci->transceiver) {
-		otg_set_peripheral(ci->transceiver->otg, NULL);
-		if (ci->global_phy)
-			usb_put_phy(ci->transceiver);
-	}
-
-	dev_err(dev, "error = %i\n", retval);
-put_transceiver:
-	if (ci->transceiver && ci->global_phy)
-		usb_put_phy(ci->transceiver);
 destroy_eps:
 	destroy_eps(ci);
 free_pools:
-- 
cgit 


From af59a8b120d18949f4f9166ccbe17348e3c9cd96 Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Tue, 24 Sep 2013 12:47:54 +0800
Subject: usb: chipidea: imx: remove PHY operations

Since the PHY operations are moved to core, delete the related
code at glue layer.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/chipidea/ci_hdrc_imx.c | 21 ++++-----------------
 1 file changed, 4 insertions(+), 17 deletions(-)

diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index be822a2c1776..023d3cb6aa0a 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -108,14 +108,8 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
 	}
 
 	data->phy = devm_usb_get_phy_by_phandle(&pdev->dev, "fsl,usbphy", 0);
-	if (!IS_ERR(data->phy)) {
-		ret = usb_phy_init(data->phy);
-		if (ret) {
-			dev_err(&pdev->dev, "unable to init phy: %d\n", ret);
-			goto err_clk;
-		}
-	} else if (PTR_ERR(data->phy) == -EPROBE_DEFER) {
-		ret = -EPROBE_DEFER;
+	if (IS_ERR(data->phy)) {
+		ret = PTR_ERR(data->phy);
 		goto err_clk;
 	}
 
@@ -131,7 +125,7 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
 		if (ret) {
 			dev_err(&pdev->dev, "usbmisc init failed, ret=%d\n",
 					ret);
-			goto err_phy;
+			goto err_clk;
 		}
 	}
 
@@ -143,7 +137,7 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev,
 			"Can't register ci_hdrc platform device, err=%d\n",
 			ret);
-		goto err_phy;
+		goto err_clk;
 	}
 
 	if (data->usbmisc_data) {
@@ -164,9 +158,6 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
 
 disable_device:
 	ci_hdrc_remove_device(data->ci_pdev);
-err_phy:
-	if (data->phy)
-		usb_phy_shutdown(data->phy);
 err_clk:
 	clk_disable_unprepare(data->clk);
 	return ret;
@@ -178,10 +169,6 @@ static int ci_hdrc_imx_remove(struct platform_device *pdev)
 
 	pm_runtime_disable(&pdev->dev);
 	ci_hdrc_remove_device(data->ci_pdev);
-
-	if (data->phy)
-		usb_phy_shutdown(data->phy);
-
 	clk_disable_unprepare(data->clk);
 
 	return 0;
-- 
cgit 


From 864cf949981754c53de0a2efdc6c542c51d61328 Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Tue, 24 Sep 2013 12:47:55 +0800
Subject: usb: chipidea: add ci_hdrc_enter_lpm API

This API is used to let the PHY enter/leave low power mode.
Before the controller going to work(at probe/resume), it needs to let
the PHY leave low power mode.
After the controller stopping working(at remove/suspend), it needs to
let the PHY enter low power mode to save power consumption.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/chipidea/bits.h |  1 +
 drivers/usb/chipidea/core.c | 24 ++++++++++++++++++++++++
 2 files changed, 25 insertions(+)

diff --git a/drivers/usb/chipidea/bits.h b/drivers/usb/chipidea/bits.h
index 464584c6ccae..a85713165688 100644
--- a/drivers/usb/chipidea/bits.h
+++ b/drivers/usb/chipidea/bits.h
@@ -48,6 +48,7 @@
 #define PORTSC_SUSP           BIT(7)
 #define PORTSC_HSP            BIT(9)
 #define PORTSC_PTC            (0x0FUL << 16)
+#define PORTSC_PHCD(d)	      ((d) ? BIT(22) : BIT(23))
 /* PTS and PTW for non lpm version only */
 #define PORTSC_PTS(d)						\
 	(u32)((((d) & 0x3) << 30) | (((d) & 0x4) ? BIT(25) : 0))
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index b20286de1436..06204b77fc4c 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -172,6 +172,27 @@ u8 hw_port_test_get(struct ci_hdrc *ci)
 	return hw_read(ci, OP_PORTSC, PORTSC_PTC) >> __ffs(PORTSC_PTC);
 }
 
+/* The PHY enters/leaves low power mode */
+static void ci_hdrc_enter_lpm(struct ci_hdrc *ci, bool enable)
+{
+	enum ci_hw_regs reg = ci->hw_bank.lpm ? OP_DEVLC : OP_PORTSC;
+	bool lpm = !!(hw_read(ci, reg, PORTSC_PHCD(ci->hw_bank.lpm)));
+
+	if (enable && !lpm) {
+		hw_write(ci, reg, PORTSC_PHCD(ci->hw_bank.lpm),
+				PORTSC_PHCD(ci->hw_bank.lpm));
+	} else  if (!enable && lpm) {
+		hw_write(ci, reg, PORTSC_PHCD(ci->hw_bank.lpm),
+				0);
+		/* 
+		 * The controller needs at least 1ms to reflect
+		 * PHY's status, the PHY also needs some time (less
+		 * than 1ms) to leave low power mode.
+		 */
+		usleep_range(1500, 2000);
+	}
+}
+
 static int hw_device_init(struct ci_hdrc *ci, void __iomem *base)
 {
 	u32 reg;
@@ -199,6 +220,8 @@ static int hw_device_init(struct ci_hdrc *ci, void __iomem *base)
 	if (ci->hw_ep_max > ENDPT_MAX)
 		return -ENODEV;
 
+	ci_hdrc_enter_lpm(ci, false);
+
 	/* Disable all interrupts bits */
 	hw_write(ci, OP_USBINTR, 0xffffffff, 0);
 
@@ -648,6 +671,7 @@ static int ci_hdrc_remove(struct platform_device *pdev)
 	dbg_remove_files(ci);
 	free_irq(ci->irq, ci);
 	ci_role_destroy(ci);
+	ci_hdrc_enter_lpm(ci, true);
 	ci_usb_phy_destroy(ci);
 	kfree(ci->hw_bank.regmap);
 
-- 
cgit 


From fdd160c3088f7e7de033cd31f4d11f38fc24803d Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Fri, 27 Sep 2013 15:33:35 -0500
Subject: usb: wusbcore: fix endianess issues when using dwTransferID

Add a new function to get the xfer ID in little endian format
(wa_xfer_id_le32), and use it instead of wa_xfer_id where appropriate.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/wa-xfer.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index 0b27146b5bc1..6f935d575b07 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -308,16 +308,18 @@ static void wa_xfer_id_init(struct wa_xfer *xfer)
 	xfer->id = atomic_add_return(1, &xfer->wa->xfer_id_count);
 }
 
-/*
- * Return the xfer's ID associated with xfer
- *
- * Need to generate a
- */
-static u32 wa_xfer_id(struct wa_xfer *xfer)
+/* Return the xfer's ID. */
+static inline u32 wa_xfer_id(struct wa_xfer *xfer)
 {
 	return xfer->id;
 }
 
+/* Return the xfer's ID in transport format (little endian). */
+static inline __le32 wa_xfer_id_le32(struct wa_xfer *xfer)
+{
+	return cpu_to_le32(xfer->id);
+}
+
 /*
  * Search for a transfer list ID on the HCD's URB list
  *
@@ -381,7 +383,7 @@ static void __wa_xfer_abort(struct wa_xfer *xfer)
 	b->cmd.bLength =  sizeof(b->cmd);
 	b->cmd.bRequestType = WA_XFER_ABORT;
 	b->cmd.wRPipe = rpipe->descr.wRPipeIndex;
-	b->cmd.dwTransferID = wa_xfer_id(xfer);
+	b->cmd.dwTransferID = wa_xfer_id_le32(xfer);
 
 	usb_init_urb(&b->urb);
 	usb_fill_bulk_urb(&b->urb, xfer->wa->usb_dev,
@@ -477,7 +479,7 @@ static void __wa_xfer_setup_hdr0(struct wa_xfer *xfer,
 	xfer_hdr0->bLength = xfer_hdr_size;
 	xfer_hdr0->bRequestType = xfer_type;
 	xfer_hdr0->wRPipe = rpipe->descr.wRPipeIndex;
-	xfer_hdr0->dwTransferID = wa_xfer_id(xfer);
+	xfer_hdr0->dwTransferID = wa_xfer_id_le32(xfer);
 	xfer_hdr0->bTransferSegment = 0;
 	switch (xfer_type) {
 	case WA_XFER_TYPE_CTL: {
@@ -1750,7 +1752,7 @@ static void wa_dti_cb(struct urb *urb)
 		if (usb_status == WA_XFER_STATUS_NOT_FOUND)
 			/* taken care of already */
 			break;
-		xfer_id = xfer_result->dwTransferID;
+		xfer_id = le32_to_cpu(xfer_result->dwTransferID);
 		xfer = wa_xfer_get_by_id(wa, xfer_id);
 		if (xfer == NULL) {
 			/* FIXME: transaction might have been cancelled */
-- 
cgit 


From b9c84be60c07336e17c4af90e1313666189cbcbd Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Fri, 27 Sep 2013 15:33:36 -0500
Subject: usb: wusbcore: include the xfer_id in debug prints

Include the xfer_id in debug prints for transfers and transfer segments.
This makes it much easier to correlate debug logs to USB analyzer logs.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/wa-xfer.c | 94 ++++++++++++++++++++++--------------------
 1 file changed, 49 insertions(+), 45 deletions(-)

diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index 6f935d575b07..3860bdf3a6c6 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -237,6 +237,31 @@ static void wa_xfer_completion(struct wa_xfer *xfer)
 	wa_xfer_giveback(xfer);
 }
 
+/*
+ * Initialize a transfer's ID
+ *
+ * We need to use a sequential number; if we use the pointer or the
+ * hash of the pointer, it can repeat over sequential transfers and
+ * then it will confuse the HWA....wonder why in hell they put a 32
+ * bit handle in there then.
+ */
+static void wa_xfer_id_init(struct wa_xfer *xfer)
+{
+	xfer->id = atomic_add_return(1, &xfer->wa->xfer_id_count);
+}
+
+/* Return the xfer's ID. */
+static inline u32 wa_xfer_id(struct wa_xfer *xfer)
+{
+	return xfer->id;
+}
+
+/* Return the xfer's ID in transport format (little endian). */
+static inline __le32 wa_xfer_id_le32(struct wa_xfer *xfer)
+{
+	return cpu_to_le32(xfer->id);
+}
+
 /*
  * If transfer is done, wrap it up and return true
  *
@@ -259,8 +284,9 @@ static unsigned __wa_xfer_is_done(struct wa_xfer *xfer)
 		switch (seg->status) {
 		case WA_SEG_DONE:
 			if (found_short && seg->result > 0) {
-				dev_dbg(dev, "xfer %p#%u: bad short segments (%zu)\n",
-					xfer, cnt, seg->result);
+				dev_dbg(dev, "xfer %p ID %08X#%u: bad short segments (%zu)\n",
+					xfer, wa_xfer_id(xfer), cnt,
+					seg->result);
 				urb->status = -EINVAL;
 				goto out;
 			}
@@ -268,24 +294,26 @@ static unsigned __wa_xfer_is_done(struct wa_xfer *xfer)
 			if (seg->result < xfer->seg_size
 			    && cnt != xfer->segs-1)
 				found_short = 1;
-			dev_dbg(dev, "xfer %p#%u: DONE short %d "
+			dev_dbg(dev, "xfer %p ID %08X#%u: DONE short %d "
 				"result %zu urb->actual_length %d\n",
-				xfer, seg->index, found_short, seg->result,
-				urb->actual_length);
+				xfer, wa_xfer_id(xfer), seg->index, found_short,
+				seg->result, urb->actual_length);
 			break;
 		case WA_SEG_ERROR:
 			xfer->result = seg->result;
-			dev_dbg(dev, "xfer %p#%u: ERROR result %zu\n",
-				xfer, seg->index, seg->result);
+			dev_dbg(dev, "xfer %p ID %08X#%u: ERROR result %zu(0x%08X)\n",
+				xfer, wa_xfer_id(xfer), seg->index, seg->result,
+				seg->result);
 			goto out;
 		case WA_SEG_ABORTED:
-			dev_dbg(dev, "xfer %p#%u ABORTED: result %d\n",
-				xfer, seg->index, urb->status);
+			dev_dbg(dev, "xfer %p ID %08X#%u ABORTED: result %d\n",
+				xfer, wa_xfer_id(xfer), seg->index,
+				urb->status);
 			xfer->result = urb->status;
 			goto out;
 		default:
-			dev_warn(dev, "xfer %p#%u: is_done bad state %d\n",
-				 xfer, cnt, seg->status);
+			dev_warn(dev, "xfer %p ID %08X#%u: is_done bad state %d\n",
+				 xfer, wa_xfer_id(xfer), cnt, seg->status);
 			xfer->result = -EINVAL;
 			goto out;
 		}
@@ -295,31 +323,6 @@ out:
 	return result;
 }
 
-/*
- * Initialize a transfer's ID
- *
- * We need to use a sequential number; if we use the pointer or the
- * hash of the pointer, it can repeat over sequential transfers and
- * then it will confuse the HWA....wonder why in hell they put a 32
- * bit handle in there then.
- */
-static void wa_xfer_id_init(struct wa_xfer *xfer)
-{
-	xfer->id = atomic_add_return(1, &xfer->wa->xfer_id_count);
-}
-
-/* Return the xfer's ID. */
-static inline u32 wa_xfer_id(struct wa_xfer *xfer)
-{
-	return xfer->id;
-}
-
-/* Return the xfer's ID in transport format (little endian). */
-static inline __le32 wa_xfer_id_le32(struct wa_xfer *xfer)
-{
-	return cpu_to_le32(xfer->id);
-}
-
 /*
  * Search for a transfer list ID on the HCD's URB list
  *
@@ -618,8 +621,9 @@ static void wa_seg_tr_cb(struct urb *urb)
 		dev = &wa->usb_iface->dev;
 		rpipe = xfer->ep->hcpriv;
 		if (printk_ratelimit())
-			dev_err(dev, "xfer %p#%u: request error %d\n",
-				xfer, seg->index, urb->status);
+			dev_err(dev, "xfer %p ID 0x%08X#%u: request error %d\n",
+				xfer, wa_xfer_id(xfer), seg->index,
+				urb->status);
 		if (edc_inc(&wa->nep_edc, EDC_MAX_ERRORS,
 			    EDC_ERROR_TIMEFRAME)){
 			dev_err(dev, "DTO: URB max acceptable errors "
@@ -964,8 +968,9 @@ static void wa_xfer_delayed_run(struct wa_rpipe *rpipe)
 		list_del(&seg->list_node);
 		xfer = seg->xfer;
 		result = __wa_seg_submit(rpipe, xfer, seg);
-		dev_dbg(dev, "xfer %p#%u submitted from delayed [%d segments available] %d\n",
-			xfer, seg->index, atomic_read(&rpipe->segs_available), result);
+		dev_dbg(dev, "xfer %p ID %08X#%u submitted from delayed [%d segments available] %d\n",
+			xfer, wa_xfer_id(xfer), seg->index,
+			atomic_read(&rpipe->segs_available), result);
 		if (unlikely(result < 0)) {
 			spin_unlock_irqrestore(&rpipe->seg_lock, flags);
 			spin_lock_irqsave(&xfer->lock, flags);
@@ -1009,11 +1014,10 @@ static int __wa_xfer_submit(struct wa_xfer *xfer)
 		available = atomic_read(&rpipe->segs_available);
 		empty = list_empty(&rpipe->seg_list);
 		seg = xfer->seg[cnt];
-		dev_dbg(dev, "xfer %p#%u: available %u empty %u (%s)\n",
-			xfer, cnt, available, empty,
+		dev_dbg(dev, "xfer %p ID 0x%08X#%u: available %u empty %u (%s)\n",
+			xfer, wa_xfer_id(xfer), cnt, available, empty,
 			available == 0 || !empty ? "delayed" : "submitted");
 		if (available == 0 || !empty) {
-			dev_dbg(dev, "xfer %p#%u: delayed\n", xfer, cnt);
 			seg->status = WA_SEG_DELAYED;
 			list_add_tail(&seg->list_node, &rpipe->seg_list);
 		} else {
@@ -1463,8 +1467,8 @@ static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer,
 	seg = xfer->seg[seg_idx];
 	rpipe = xfer->ep->hcpriv;
 	usb_status = xfer_result->bTransferStatus;
-	dev_dbg(dev, "xfer %p#%u: bTransferStatus 0x%02x (seg status %u)\n",
-		xfer, seg_idx, usb_status, seg->status);
+	dev_dbg(dev, "xfer %p ID 0x%08X#%u: bTransferStatus 0x%02x (seg status %u)\n",
+		xfer, wa_xfer_id(xfer), seg_idx, usb_status, seg->status);
 	if (seg->status == WA_SEG_ABORTED
 	    || seg->status == WA_SEG_ERROR)	/* already handled */
 		goto segment_aborted;
-- 
cgit 


From 14e1d2dfe73f48bbc267b9ef0a9d5a62685f5861 Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Mon, 30 Sep 2013 15:58:24 -0500
Subject: usb: wusbcore: clean up urb dequeue process

This patch updates URB dequeue handling in wusbcore to make it more
reliable when a URB has been broken up into multiple WUSB transfer
request segments.

In wa_urb_dequeue, don't mark segments in the WA_SEG_SUBMITTED,
WA_SEG_PENDING or WA_SEG_DTI_PENDING states as completed if an ABORT
TRANSFER request was sent to the HWA to clean them up.  Wait for the
HWA to return a transfer result indicating that it has aborted the
request before cleaning it up.  This prevents the DTI state machine
from losing track of transfers and avoids confusion in the case where a
read transfer segment is dequeued after the driver has received the
transfer result but before the data is received.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/wa-xfer.c | 122 +++++++++++++++++++++++++++++------------
 1 file changed, 87 insertions(+), 35 deletions(-)

diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index 3860bdf3a6c6..d26083673652 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -367,15 +367,11 @@ static void __wa_xfer_abort_cb(struct urb *urb)
  *
  * The callback (see above) does nothing but freeing up the data by
  * putting the URB. Because the URB is allocated at the head of the
- * struct, the whole space we allocated is kfreed.
- *
- * We'll get an 'aborted transaction' xfer result on DTI, that'll
- * politely ignore because at this point the transaction has been
- * marked as aborted already.
+ * struct, the whole space we allocated is kfreed. *
  */
-static void __wa_xfer_abort(struct wa_xfer *xfer)
+static int __wa_xfer_abort(struct wa_xfer *xfer)
 {
-	int result;
+	int result = -ENOMEM;
 	struct device *dev = &xfer->wa->usb_iface->dev;
 	struct wa_xfer_abort_buffer *b;
 	struct wa_rpipe *rpipe = xfer->ep->hcpriv;
@@ -396,7 +392,7 @@ static void __wa_xfer_abort(struct wa_xfer *xfer)
 	result = usb_submit_urb(&b->urb, GFP_ATOMIC);
 	if (result < 0)
 		goto error_submit;
-	return;				/* callback frees! */
+	return result;				/* callback frees! */
 
 
 error_submit:
@@ -405,7 +401,7 @@ error_submit:
 			xfer, result);
 	kfree(b);
 error_kmalloc:
-	return;
+	return result;
 
 }
 
@@ -1295,7 +1291,7 @@ int wa_urb_dequeue(struct wahc *wa, struct urb *urb)
 	struct wa_xfer *xfer;
 	struct wa_seg *seg;
 	struct wa_rpipe *rpipe;
-	unsigned cnt;
+	unsigned cnt, done = 0, xfer_abort_pending;
 	unsigned rpipe_ready = 0;
 
 	xfer = urb->hcpriv;
@@ -1309,6 +1305,7 @@ int wa_urb_dequeue(struct wahc *wa, struct urb *urb)
 		goto out;
 	}
 	spin_lock_irqsave(&xfer->lock, flags);
+	pr_debug("%s: DEQUEUE xfer id 0x%08X\n", __func__, wa_xfer_id(xfer));
 	rpipe = xfer->ep->hcpriv;
 	if (rpipe == NULL) {
 		pr_debug("%s: xfer id 0x%08X has no RPIPE.  %s",
@@ -1324,9 +1321,11 @@ int wa_urb_dequeue(struct wahc *wa, struct urb *urb)
 	if (xfer->seg == NULL)  	/* still hasn't reached */
 		goto out_unlock;	/* setup(), enqueue_b() completes */
 	/* Ok, the xfer is in flight already, it's been setup and submitted.*/
-	__wa_xfer_abort(xfer);
+	xfer_abort_pending = __wa_xfer_abort(xfer) >= 0;
 	for (cnt = 0; cnt < xfer->segs; cnt++) {
 		seg = xfer->seg[cnt];
+		pr_debug("%s: xfer id 0x%08X#%d status = %d\n",
+			__func__, wa_xfer_id(xfer), cnt, seg->status);
 		switch (seg->status) {
 		case WA_SEG_NOTREADY:
 		case WA_SEG_READY:
@@ -1335,42 +1334,50 @@ int wa_urb_dequeue(struct wahc *wa, struct urb *urb)
 			WARN_ON(1);
 			break;
 		case WA_SEG_DELAYED:
+			/*
+			 * delete from rpipe delayed list.  If no segments on
+			 * this xfer have been submitted, __wa_xfer_is_done will
+			 * trigger a giveback below.  Otherwise, the submitted
+			 * segments will be completed in the DTI interrupt.
+			 */
 			seg->status = WA_SEG_ABORTED;
 			spin_lock_irqsave(&rpipe->seg_lock, flags2);
 			list_del(&seg->list_node);
 			xfer->segs_done++;
-			rpipe_ready = rpipe_avail_inc(rpipe);
 			spin_unlock_irqrestore(&rpipe->seg_lock, flags2);
 			break;
-		case WA_SEG_SUBMITTED:
-			seg->status = WA_SEG_ABORTED;
-			usb_unlink_urb(&seg->tr_urb);
-			if (xfer->is_inbound == 0)
-				usb_unlink_urb(seg->dto_urb);
-			xfer->segs_done++;
-			rpipe_ready = rpipe_avail_inc(rpipe);
-			break;
-		case WA_SEG_PENDING:
-			seg->status = WA_SEG_ABORTED;
-			xfer->segs_done++;
-			rpipe_ready = rpipe_avail_inc(rpipe);
-			break;
-		case WA_SEG_DTI_PENDING:
-			usb_unlink_urb(wa->dti_urb);
-			seg->status = WA_SEG_ABORTED;
-			xfer->segs_done++;
-			rpipe_ready = rpipe_avail_inc(rpipe);
-			break;
 		case WA_SEG_DONE:
 		case WA_SEG_ERROR:
 		case WA_SEG_ABORTED:
 			break;
+			/*
+			 * In the states below, the HWA device already knows
+			 * about the transfer.  If an abort request was sent,
+			 * allow the HWA to process it and wait for the
+			 * results.  Otherwise, the DTI state and seg completed
+			 * counts can get out of sync.
+			 */
+		case WA_SEG_SUBMITTED:
+		case WA_SEG_PENDING:
+		case WA_SEG_DTI_PENDING:
+			/*
+			 * Check if the abort was successfully sent.  This could
+			 * be false if the HWA has been removed but we haven't
+			 * gotten the disconnect notification yet.
+			 */
+			if (!xfer_abort_pending) {
+				seg->status = WA_SEG_ABORTED;
+				rpipe_ready = rpipe_avail_inc(rpipe);
+				xfer->segs_done++;
+			}
+			break;
 		}
 	}
 	xfer->result = urb->status;	/* -ENOENT or -ECONNRESET */
-	__wa_xfer_is_done(xfer);
+	done = __wa_xfer_is_done(xfer);
 	spin_unlock_irqrestore(&xfer->lock, flags);
-	wa_xfer_completion(xfer);
+	if (done)
+		wa_xfer_completion(xfer);
 	if (rpipe_ready)
 		wa_xfer_delayed_run(rpipe);
 	return 0;
@@ -1440,10 +1447,52 @@ static int wa_xfer_status_to_errno(u8 status)
 	return errno;
 }
 
+/*
+ * If a last segment flag and/or a transfer result error is encountered,
+ * no other segment transfer results will be returned from the device.
+ * Mark the remaining submitted or pending xfers as completed so that
+ * the xfer will complete cleanly.
+ */
+static void wa_complete_remaining_xfer_segs(struct wa_xfer *xfer,
+		struct wa_seg *incoming_seg)
+{
+	int index;
+	struct wa_rpipe *rpipe = xfer->ep->hcpriv;
+
+	for (index = incoming_seg->index + 1; index < xfer->segs_submitted;
+		index++) {
+		struct wa_seg *current_seg = xfer->seg[index];
+
+		BUG_ON(current_seg == NULL);
+
+		switch (current_seg->status) {
+		case WA_SEG_SUBMITTED:
+		case WA_SEG_PENDING:
+		case WA_SEG_DTI_PENDING:
+			rpipe_avail_inc(rpipe);
+		/*
+		 * do not increment RPIPE avail for the WA_SEG_DELAYED case
+		 * since it has not been submitted to the RPIPE.
+		 */
+		case WA_SEG_DELAYED:
+			xfer->segs_done++;
+			current_seg->status = incoming_seg->status;
+			break;
+		case WA_SEG_ABORTED:
+			break;
+		default:
+			WARN(1, "%s: xfer 0x%08X#%d. bad seg status = %d\n",
+				__func__, wa_xfer_id(xfer), index,
+				current_seg->status);
+			break;
+		}
+	}
+}
+
 /*
  * Process a xfer result completion message
  *
- * inbound transfers: need to schedule a DTI read
+ * inbound transfers: need to schedule a buf_in_urb read
  *
  * FIXME: this function needs to be broken up in parts
  */
@@ -1484,6 +1533,8 @@ static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer,
 		seg->result = wa_xfer_status_to_errno(usb_status);
 		dev_err(dev, "DTI: xfer %p#:%08X:%u failed (0x%02x)\n",
 			xfer, xfer->id, seg->index, usb_status);
+		seg->status = ((usb_status & 0x7F) == WA_XFER_STATUS_ABORTED) ?
+			WA_SEG_ABORTED : WA_SEG_ERROR;
 		goto error_complete;
 	}
 	/* FIXME: we ignore warnings, tally them for stats */
@@ -1569,10 +1620,11 @@ error_submit_buf_in:
 	wa->buf_in_urb->sg = NULL;
 error_sg_alloc:
 	__wa_xfer_abort(xfer);
-error_complete:
 	seg->status = WA_SEG_ERROR;
+error_complete:
 	xfer->segs_done++;
 	rpipe_ready = rpipe_avail_inc(rpipe);
+	wa_complete_remaining_xfer_segs(xfer, seg);
 	done = __wa_xfer_is_done(xfer);
 	/*
 	 * queue work item to clear STALL for control endpoints.
-- 
cgit 


From c80ad6d1cd6c6662d0cff752d94a1a9fde6de4ac Mon Sep 17 00:00:00 2001
From: Kevin Hilman <khilman@linaro.org>
Date: Fri, 27 Sep 2013 08:10:32 -0700
Subject: USB: OHCI: ohci_init_driver(): sanity check overrides

Check for non-NULL overrides before dereferencing since platforms may
pass in NULL overrides.

Signed-off-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ohci-hcd.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 21d937a590e8..8ada13f8dde2 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1161,10 +1161,12 @@ void ohci_init_driver(struct hc_driver *drv,
 	/* Copy the generic table to drv and then apply the overrides */
 	*drv = ohci_hc_driver;
 
-	drv->product_desc = over->product_desc;
-	drv->hcd_priv_size += over->extra_priv_size;
-	if (over->reset)
-		drv->reset = over->reset;
+	if (over) {
+		drv->product_desc = over->product_desc;
+		drv->hcd_priv_size += over->extra_priv_size;
+		if (over->reset)
+			drv->reset = over->reset;
+	}
 }
 EXPORT_SYMBOL_GPL(ohci_init_driver);
 
-- 
cgit 


From dafbe92edbfe4a4fd224f6d09a91650edcf7f442 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 27 Sep 2013 16:22:08 +0800
Subject: USB: EHCI: tegra: drop clk_put for devm_clk_get in tegra_ehci_probe()

devm_clk_get() is used so there is no reason to explicitly
call clk_put() in probe or remove functions.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-tegra.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index 78fa76da3324..e6d8e26e48cc 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -388,7 +388,7 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 
 	err = clk_prepare_enable(tegra->clk);
 	if (err)
-		goto cleanup_clk_get;
+		goto cleanup_hcd_create;
 
 	tegra_periph_reset_assert(tegra->clk);
 	udelay(1);
@@ -465,8 +465,6 @@ cleanup_phy:
 	usb_phy_shutdown(hcd->phy);
 cleanup_clk_en:
 	clk_disable_unprepare(tegra->clk);
-cleanup_clk_get:
-	clk_put(tegra->clk);
 cleanup_hcd_create:
 	usb_put_hcd(hcd);
 	return err;
-- 
cgit 


From f829452390cf817f0321b91e3096e06b85c4a07a Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Mon, 30 Sep 2013 15:19:36 +0200
Subject: TTY: bfin_jtag_comm: fix incorrect placement of __initdata tag

__initdata tag should be placed between the variable name and equal
sign for the variable to be placed in the intended .init.data section.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/bfin_jtag_comm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/bfin_jtag_comm.c b/drivers/tty/bfin_jtag_comm.c
index a93a424873fa..8096fcbe2dc1 100644
--- a/drivers/tty/bfin_jtag_comm.c
+++ b/drivers/tty/bfin_jtag_comm.c
@@ -349,7 +349,7 @@ bfin_jc_early_write(struct console *co, const char *buf, unsigned int count)
 	bfin_jc_straight_buffer_write(buf, count);
 }
 
-static struct __initdata console bfin_jc_early_console = {
+static struct console bfin_jc_early_console __initdata = {
 	.name   = "early_BFJC",
 	.write   = bfin_jc_early_write,
 	.flags   = CON_ANYTIME | CON_PRINTBUFFER,
-- 
cgit 


From af8c5b8debb04633170ab4c95143dbcdd941cfa8 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sat, 28 Sep 2013 13:01:59 -0700
Subject: serial: 8250_pci: clean up printk() calls

Move the printk() calls to to dev_*() instead, to tie into the dynamic
debugging infrastructure.

Also change some "raw" printk() calls to dev_err() to provide a better
error message to userspace so it can properly identify the device and
not just have to guess.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/8250_pci.c | 40 ++++++++++++++++++--------------------
 1 file changed, 19 insertions(+), 21 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index d917bbb30484..0774c02d6c49 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -9,6 +9,7 @@
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License.
  */
+#undef DEBUG
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/pci.h>
@@ -27,8 +28,6 @@
 
 #include "8250.h"
 
-#undef SERIAL_DEBUG_PCI
-
 /*
  * init function returns:
  *  > 0 - number of ports
@@ -63,7 +62,7 @@ static int pci_default_setup(struct serial_private*,
 
 static void moan_device(const char *str, struct pci_dev *dev)
 {
-	printk(KERN_WARNING
+	dev_err(&dev->dev,
 	       "%s: %s\n"
 	       "Please send the output of lspci -vv, this\n"
 	       "message (0x%04x,0x%04x,0x%04x,0x%04x), the\n"
@@ -233,7 +232,7 @@ static int pci_inteli960ni_init(struct pci_dev *dev)
 	/* is firmware started? */
 	pci_read_config_dword(dev, 0x44, (void *)&oldval);
 	if (oldval == 0x00001000L) { /* RESET value */
-		printk(KERN_DEBUG "Local i960 firmware missing");
+		dev_dbg(&dev->dev, "Local i960 firmware missing\n");
 		return -ENODEV;
 	}
 	return 0;
@@ -827,7 +826,7 @@ static int pci_netmos_9900_numports(struct pci_dev *dev)
 		if (sub_serports > 0) {
 			return sub_serports;
 		} else {
-			printk(KERN_NOTICE "NetMos/Mostech serial driver ignoring port on ambiguous config.\n");
+			dev_err(&dev->dev, "NetMos/Mostech serial driver ignoring port on ambiguous config.\n");
 			return 0;
 		}
 	}
@@ -931,7 +930,7 @@ static int pci_ite887x_init(struct pci_dev *dev)
 	}
 
 	if (!inta_addr[i]) {
-		printk(KERN_ERR "ite887x: could not find iobase\n");
+		dev_err(&dev->dev, "ite887x: could not find iobase\n");
 		return -ENODEV;
 	}
 
@@ -1024,9 +1023,9 @@ static int pci_oxsemi_tornado_init(struct pci_dev *dev)
 	/* Tornado device */
 	if (deviceID == 0x07000200) {
 		number_uarts = ioread8(p + 4);
-		printk(KERN_DEBUG
+		dev_dbg(&dev->dev,
 			"%d ports detected on Oxford PCI Express device\n",
-								number_uarts);
+			number_uarts);
 	}
 	pci_iounmap(dev, p);
 	return number_uarts;
@@ -1463,12 +1462,10 @@ static int skip_tx_en_setup(struct serial_private *priv,
 			struct uart_8250_port *port, int idx)
 {
 	port->port.flags |= UPF_NO_TXEN_TEST;
-	printk(KERN_DEBUG "serial8250: skipping TxEn test for device "
-			  "[%04x:%04x] subsystem [%04x:%04x]\n",
-			  priv->dev->vendor,
-			  priv->dev->device,
-			  priv->dev->subsystem_vendor,
-			  priv->dev->subsystem_device);
+	dev_dbg(&priv->dev->dev,
+		"serial8250: skipping TxEn test for device [%04x:%04x] subsystem [%04x:%04x]\n",
+		priv->dev->vendor, priv->dev->device,
+		priv->dev->subsystem_vendor, priv->dev->subsystem_device);
 
 	return pci_default_setup(priv, board, port, idx);
 }
@@ -3498,14 +3495,15 @@ pciserial_init_ports(struct pci_dev *dev, const struct pciserial_board *board)
 		if (quirk->setup(priv, board, &uart, i))
 			break;
 
-#ifdef SERIAL_DEBUG_PCI
-		printk(KERN_DEBUG "Setup PCI port: port %lx, irq %d, type %d\n",
-		       uart.port.iobase, uart.port.irq, uart.port.iotype);
-#endif
+		dev_dbg(&dev->dev, "Setup PCI port: port %lx, irq %d, type %d\n",
+			uart.port.iobase, uart.port.irq, uart.port.iotype);
 
 		priv->line[i] = serial8250_register_8250_port(&uart);
 		if (priv->line[i] < 0) {
-			printk(KERN_WARNING "Couldn't register serial port %s: %d\n", pci_name(dev), priv->line[i]);
+			dev_err(&dev->dev,
+				"Couldn't register serial port %lx, irq %d, type %d, error %d\n",
+				uart.port.iobase, uart.port.irq,
+				uart.port.iotype, priv->line[i]);
 			break;
 		}
 	}
@@ -3598,7 +3596,7 @@ pciserial_init_one(struct pci_dev *dev, const struct pci_device_id *ent)
 	}
 
 	if (ent->driver_data >= ARRAY_SIZE(pci_boards)) {
-		printk(KERN_ERR "pci_init_one: invalid driver_data: %ld\n",
+		dev_err(&dev->dev, "invalid driver_data: %ld\n",
 			ent->driver_data);
 		return -EINVAL;
 	}
@@ -3689,7 +3687,7 @@ static int pciserial_resume_one(struct pci_dev *dev)
 		err = pci_enable_device(dev);
 		/* FIXME: We cannot simply error out here */
 		if (err)
-			printk(KERN_ERR "pciserial: Unable to re-enable ports, trying to continue.\n");
+			dev_err(&dev->dev, "Unable to re-enable ports, trying to continue.\n");
 		pciserial_resume_ports(priv);
 	}
 	return 0;
-- 
cgit 


From 3ec65cb350728718cfc2541e8f43ea317acd2756 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 30 Sep 2013 20:14:42 -0700
Subject: staging: lustre: remove ll_mrf_ret

It's just 'void' and only used in one place, so just remove it, it's
useless.

Cc: Peng Tao <tao.peng@emc.com>
Cc: Zhao Hongjiang <zhaohongjiang@huawei.com>
Cc: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/include/linux/lustre_compat25.h | 1 -
 drivers/staging/lustre/lustre/llite/lloop.c                   | 3 +--
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/staging/lustre/lustre/include/linux/lustre_compat25.h b/drivers/staging/lustre/lustre/include/linux/lustre_compat25.h
index 9243dfab43d3..1644d40b2682 100644
--- a/drivers/staging/lustre/lustre/include/linux/lustre_compat25.h
+++ b/drivers/staging/lustre/lustre/include/linux/lustre_compat25.h
@@ -232,7 +232,6 @@ static inline int ll_namei_to_lookup_intent_flag(int flag)
 	return flag;
 }
 
-# define ll_mrf_ret void
 # define LL_MRF_RETURN(rc)
 
 #include <linux/fs.h>
diff --git a/drivers/staging/lustre/lustre/llite/lloop.c b/drivers/staging/lustre/lustre/llite/lloop.c
index 2340458b8a04..66ed25e0efa8 100644
--- a/drivers/staging/lustre/lustre/llite/lloop.c
+++ b/drivers/staging/lustre/lustre/llite/lloop.c
@@ -337,8 +337,7 @@ static unsigned int loop_get_bio(struct lloop_device *lo, struct bio **req)
 	return count;
 }
 
-static ll_mrf_ret
-loop_make_request(struct request_queue *q, struct bio *old_bio)
+static void loop_make_request(struct request_queue *q, struct bio *old_bio)
 {
 	struct lloop_device *lo = q->queuedata;
 	int rw = bio_rw(old_bio);
-- 
cgit 


From de40d1209898884ad5d15a7b5003d13f4f3263d5 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 30 Sep 2013 20:46:36 -0700
Subject: staging: lustre: fix bug with LL_MRF_RETURN in loop_make_request

Turns out that LL_MRF_RETURN is "void" so loop_make_request() would fall
through to the error path for a successful call.  Either this never
matters, or the error path really doesn't do anything.

Fix it up to do what the code is written to look like it is doing, if
that really is what it should be doing is another story...

Cc: Peng Tao <tao.peng@emc.com>
Cc: Zhao Hongjiang <zhaohongjiang@huawei.com>
Cc: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/include/linux/lustre_compat25.h | 2 --
 drivers/staging/lustre/lustre/llite/lloop.c                   | 3 +--
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/staging/lustre/lustre/include/linux/lustre_compat25.h b/drivers/staging/lustre/lustre/include/linux/lustre_compat25.h
index 1644d40b2682..359c6c1ba68d 100644
--- a/drivers/staging/lustre/lustre/include/linux/lustre_compat25.h
+++ b/drivers/staging/lustre/lustre/include/linux/lustre_compat25.h
@@ -232,8 +232,6 @@ static inline int ll_namei_to_lookup_intent_flag(int flag)
 	return flag;
 }
 
-# define LL_MRF_RETURN(rc)
-
 #include <linux/fs.h>
 
 # define ll_umode_t	umode_t
diff --git a/drivers/staging/lustre/lustre/llite/lloop.c b/drivers/staging/lustre/lustre/llite/lloop.c
index 66ed25e0efa8..e2421ea61352 100644
--- a/drivers/staging/lustre/lustre/llite/lloop.c
+++ b/drivers/staging/lustre/lustre/llite/lloop.c
@@ -365,10 +365,9 @@ static void loop_make_request(struct request_queue *q, struct bio *old_bio)
 		goto err;
 	}
 	loop_add_bio(lo, old_bio);
-	LL_MRF_RETURN(0);
+	return;
 err:
 	cfs_bio_io_error(old_bio, old_bio->bi_size);
-	LL_MRF_RETURN(0);
 }
 
 
-- 
cgit 


From 40fca03cae59cfd9b87142ca327abb8a4d386908 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Mon, 30 Sep 2013 17:34:36 +0200
Subject: ARM: shmobile: ape6evm: fix incorrect placement of __initdata tag

__initdata tag should be placed between the variable name and equal
sign for the variable to be placed in the intended .init.data section.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-ape6evm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/board-ape6evm.c b/arch/arm/mach-shmobile/board-ape6evm.c
index 24b87eea9da3..00e3add8e658 100644
--- a/arch/arm/mach-shmobile/board-ape6evm.c
+++ b/arch/arm/mach-shmobile/board-ape6evm.c
@@ -86,7 +86,7 @@ static struct gpio_keys_button gpio_buttons[] = {
 	GPIO_KEY(KEY_VOLUMEDOWN,	329,	"S21"),
 };
 
-static struct __initdata gpio_keys_platform_data ape6evm_keys_pdata = {
+static struct gpio_keys_platform_data ape6evm_keys_pdata __initdata = {
 	.buttons	= gpio_buttons,
 	.nbuttons	= ARRAY_SIZE(gpio_buttons),
 };
-- 
cgit 


From 12861b7bc2a32f7d36cdbc2ab5236819fa203836 Mon Sep 17 00:00:00 2001
From: stephen hemminger <stephen@networkplumber.org>
Date: Fri, 27 Sep 2013 17:19:41 -0700
Subject: ethernet: cleanup eth_type_trans

Remove old legacy comment and weird if condition.
The comment has outlived it's stay and is throwback to some
early net code (before my time). Maybe Dave remembers what it meant.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ethernet/eth.c | 17 +++--------------
 1 file changed, 3 insertions(+), 14 deletions(-)

diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c
index 9bd3c31c30e5..f777e17d28c8 100644
--- a/net/ethernet/eth.c
+++ b/net/ethernet/eth.c
@@ -169,20 +169,9 @@ __be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev)
 		else
 			skb->pkt_type = PACKET_MULTICAST;
 	}
-
-	/*
-	 *      This ALLMULTI check should be redundant by 1.4
-	 *      so don't forget to remove it.
-	 *
-	 *      Seems, you forgot to remove it. All silly devices
-	 *      seems to set IFF_PROMISC.
-	 */
-
-	else if (1 /*dev->flags&IFF_PROMISC */) {
-		if (unlikely(!ether_addr_equal_64bits(eth->h_dest,
-						      dev->dev_addr)))
-			skb->pkt_type = PACKET_OTHERHOST;
-	}
+	else if (unlikely(!ether_addr_equal_64bits(eth->h_dest,
+						   dev->dev_addr)))
+		skb->pkt_type = PACKET_OTHERHOST;
 
 	/*
 	 * Some variants of DSA tagging don't have an ethertype field
-- 
cgit 


From 56d7b53f47e7c9a0ab1c6289f2669a8d3a65cf17 Mon Sep 17 00:00:00 2001
From: stephen hemminger <stephen@networkplumber.org>
Date: Fri, 27 Sep 2013 17:21:27 -0700
Subject: ethernet: use likely() for common Ethernet encap

Mark code path's likely/unlikely based on most common usage.
  * Very few devices use dsa tags.
  * Most traffic is Ethernet (not 802.2)
  * No sane person uses trailer type or Novell encapsulation

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ethernet/eth.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c
index f777e17d28c8..8f032bae60ad 100644
--- a/net/ethernet/eth.c
+++ b/net/ethernet/eth.c
@@ -179,12 +179,13 @@ __be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev)
 	 * variants has been configured on the receiving interface,
 	 * and if so, set skb->protocol without looking at the packet.
 	 */
-	if (netdev_uses_dsa_tags(dev))
+	if (unlikely(netdev_uses_dsa_tags(dev)))
 		return htons(ETH_P_DSA);
-	if (netdev_uses_trailer_tags(dev))
+
+	if (unlikely(netdev_uses_trailer_tags(dev)))
 		return htons(ETH_P_TRAILER);
 
-	if (ntohs(eth->h_proto) >= ETH_P_802_3_MIN)
+	if (likely(ntohs(eth->h_proto) >= ETH_P_802_3_MIN))
 		return eth->h_proto;
 
 	/*
@@ -193,7 +194,7 @@ __be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev)
 	 *      layer. We look for FFFF which isn't a used 802.2 SSAP/DSAP. This
 	 *      won't work for fault tolerant netware but does for the rest.
 	 */
-	if (skb->len >= 2 && *(unsigned short *)(skb->data) == 0xFFFF)
+	if (unlikely(skb->len >= 2 && *(unsigned short *)(skb->data) == 0xFFFF))
 		return htons(ETH_P_802_3);
 
 	/*
-- 
cgit 


From 0bbf87d852d243680ed7074110ccc1dea003b61a Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Sat, 28 Sep 2013 14:10:59 -0700
Subject: net ipv4: Convert ipv4.ip_local_port_range to be per netns v3

- Move sysctl_local_ports from a global variable into struct netns_ipv4.
- Modify inet_get_local_port_range to take a struct net, and update all
  of the callers.
- Move the initialization of sysctl_local_ports into
   sysctl_net_ipv4.c:ipv4_sysctl_init_net from inet_connection_sock.c

v2:
- Ensure indentation used tabs
- Fixed ip.h so it applies cleanly to todays net-next

v3:
- Compile fixes of strange callers of inet_get_local_port_range.
  This patch now successfully passes an allmodconfig build.
  Removed manual inlining of inet_get_local_port_range in ipv4_local_port_range

Originally-by: Samya <samya@twitter.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/infiniband/core/cma.c   |  2 +-
 drivers/net/vxlan.c             |  2 +-
 include/net/ip.h                |  6 +----
 include/net/netns/ipv4.h        |  6 +++++
 net/ipv4/inet_connection_sock.c | 20 +++++-----------
 net/ipv4/inet_hashtables.c      |  2 +-
 net/ipv4/ping.c                 |  4 ++--
 net/ipv4/sysctl_net_ipv4.c      | 52 +++++++++++++++++++++++++++--------------
 net/ipv4/udp.c                  |  2 +-
 net/openvswitch/vport-vxlan.c   |  2 +-
 net/sctp/socket.c               |  2 +-
 security/selinux/hooks.c        |  2 +-
 12 files changed, 56 insertions(+), 46 deletions(-)

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index dab4b41f1715..a082fd9e7ebe 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -2294,7 +2294,7 @@ static int cma_alloc_any_port(struct idr *ps, struct rdma_id_private *id_priv)
 	int low, high, remaining;
 	unsigned int rover;
 
-	inet_get_local_port_range(&low, &high);
+	inet_get_local_port_range(&init_net, &low, &high);
 	remaining = (high - low) + 1;
 	rover = net_random() % remaining + low;
 retry:
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index d1292fe746bc..c376be7b528a 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -2089,7 +2089,7 @@ static void vxlan_setup(struct net_device *dev)
 	vxlan->age_timer.function = vxlan_cleanup;
 	vxlan->age_timer.data = (unsigned long) vxlan;
 
-	inet_get_local_port_range(&low, &high);
+	inet_get_local_port_range(dev_net(dev), &low, &high);
 	vxlan->port_min = low;
 	vxlan->port_max = high;
 	vxlan->dst_port = htons(vxlan_port);
diff --git a/include/net/ip.h b/include/net/ip.h
index 77b4f9b57c28..16078f422397 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -217,11 +217,7 @@ static inline void snmp_mib_free(void __percpu *ptr[SNMP_ARRAY_SZ])
 	}
 }
 
-extern struct local_ports {
-	seqlock_t	lock;
-	int		range[2];
-} sysctl_local_ports;
-void inet_get_local_port_range(int *low, int *high);
+void inet_get_local_port_range(struct net *net, int *low, int *high);
 
 extern unsigned long *sysctl_local_reserved_ports;
 static inline int inet_is_reserved_local_port(int port)
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index bf2ec2202c56..5dbd232e12ff 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -15,6 +15,10 @@ struct fib_rules_ops;
 struct hlist_head;
 struct fib_table;
 struct sock;
+struct local_ports {
+	seqlock_t	lock;
+	int		range[2];
+};
 
 struct netns_ipv4 {
 #ifdef CONFIG_SYSCTL
@@ -62,6 +66,8 @@ struct netns_ipv4 {
 	int sysctl_icmp_ratemask;
 	int sysctl_icmp_errors_use_inbound_ifaddr;
 
+	struct local_ports sysctl_local_ports;
+
 	int sysctl_tcp_ecn;
 
 	kgid_t sysctl_ping_group_range[2];
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 6acb541c9091..7ac7aa11130e 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -29,27 +29,19 @@ const char inet_csk_timer_bug_msg[] = "inet_csk BUG: unknown timer value\n";
 EXPORT_SYMBOL(inet_csk_timer_bug_msg);
 #endif
 
-/*
- * This struct holds the first and last local port number.
- */
-struct local_ports sysctl_local_ports __read_mostly = {
-	.lock = __SEQLOCK_UNLOCKED(sysctl_local_ports.lock),
-	.range = { 32768, 61000 },
-};
-
 unsigned long *sysctl_local_reserved_ports;
 EXPORT_SYMBOL(sysctl_local_reserved_ports);
 
-void inet_get_local_port_range(int *low, int *high)
+void inet_get_local_port_range(struct net *net, int *low, int *high)
 {
 	unsigned int seq;
 
 	do {
-		seq = read_seqbegin(&sysctl_local_ports.lock);
+		seq = read_seqbegin(&net->ipv4.sysctl_local_ports.lock);
 
-		*low = sysctl_local_ports.range[0];
-		*high = sysctl_local_ports.range[1];
-	} while (read_seqretry(&sysctl_local_ports.lock, seq));
+		*low = net->ipv4.sysctl_local_ports.range[0];
+		*high = net->ipv4.sysctl_local_ports.range[1];
+	} while (read_seqretry(&net->ipv4.sysctl_local_ports.lock, seq));
 }
 EXPORT_SYMBOL(inet_get_local_port_range);
 
@@ -116,7 +108,7 @@ int inet_csk_get_port(struct sock *sk, unsigned short snum)
 		int remaining, rover, low, high;
 
 again:
-		inet_get_local_port_range(&low, &high);
+		inet_get_local_port_range(net, &low, &high);
 		remaining = (high - low) + 1;
 		smallest_rover = rover = net_random() % remaining + low;
 
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 7bd8983dbfcf..2779037bd113 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -494,7 +494,7 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row,
 		u32 offset = hint + port_offset;
 		struct inet_timewait_sock *tw = NULL;
 
-		inet_get_local_port_range(&low, &high);
+		inet_get_local_port_range(net, &low, &high);
 		remaining = (high - low) + 1;
 
 		local_bh_disable();
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 706d108e128c..a62610443152 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -237,11 +237,11 @@ static void inet_get_ping_group_range_net(struct net *net, kgid_t *low,
 	unsigned int seq;
 
 	do {
-		seq = read_seqbegin(&sysctl_local_ports.lock);
+		seq = read_seqbegin(&net->ipv4.sysctl_local_ports.lock);
 
 		*low = data[0];
 		*high = data[1];
-	} while (read_seqretry(&sysctl_local_ports.lock, seq));
+	} while (read_seqretry(&net->ipv4.sysctl_local_ports.lock, seq));
 }
 
 
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 540279f4c531..c08f096d46b5 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -43,12 +43,12 @@ static int ip_ping_group_range_min[] = { 0, 0 };
 static int ip_ping_group_range_max[] = { GID_T_MAX, GID_T_MAX };
 
 /* Update system visible IP port range */
-static void set_local_port_range(int range[2])
+static void set_local_port_range(struct net *net, int range[2])
 {
-	write_seqlock(&sysctl_local_ports.lock);
-	sysctl_local_ports.range[0] = range[0];
-	sysctl_local_ports.range[1] = range[1];
-	write_sequnlock(&sysctl_local_ports.lock);
+	write_seqlock(&net->ipv4.sysctl_local_ports.lock);
+	net->ipv4.sysctl_local_ports.range[0] = range[0];
+	net->ipv4.sysctl_local_ports.range[1] = range[1];
+	write_sequnlock(&net->ipv4.sysctl_local_ports.lock);
 }
 
 /* Validate changes from /proc interface. */
@@ -56,6 +56,8 @@ static int ipv4_local_port_range(struct ctl_table *table, int write,
 				 void __user *buffer,
 				 size_t *lenp, loff_t *ppos)
 {
+	struct net *net =
+		container_of(table->data, struct net, ipv4.sysctl_local_ports.range);
 	int ret;
 	int range[2];
 	struct ctl_table tmp = {
@@ -66,14 +68,15 @@ static int ipv4_local_port_range(struct ctl_table *table, int write,
 		.extra2 = &ip_local_port_range_max,
 	};
 
-	inet_get_local_port_range(range, range + 1);
+	inet_get_local_port_range(net, &range[0], &range[1]);
+
 	ret = proc_dointvec_minmax(&tmp, write, buffer, lenp, ppos);
 
 	if (write && ret == 0) {
 		if (range[1] < range[0])
 			ret = -EINVAL;
 		else
-			set_local_port_range(range);
+			set_local_port_range(net, range);
 	}
 
 	return ret;
@@ -83,23 +86,27 @@ static int ipv4_local_port_range(struct ctl_table *table, int write,
 static void inet_get_ping_group_range_table(struct ctl_table *table, kgid_t *low, kgid_t *high)
 {
 	kgid_t *data = table->data;
+	struct net *net =
+		container_of(table->data, struct net, ipv4.sysctl_ping_group_range);
 	unsigned int seq;
 	do {
-		seq = read_seqbegin(&sysctl_local_ports.lock);
+		seq = read_seqbegin(&net->ipv4.sysctl_local_ports.lock);
 
 		*low = data[0];
 		*high = data[1];
-	} while (read_seqretry(&sysctl_local_ports.lock, seq));
+	} while (read_seqretry(&net->ipv4.sysctl_local_ports.lock, seq));
 }
 
 /* Update system visible IP port range */
 static void set_ping_group_range(struct ctl_table *table, kgid_t low, kgid_t high)
 {
 	kgid_t *data = table->data;
-	write_seqlock(&sysctl_local_ports.lock);
+	struct net *net =
+		container_of(table->data, struct net, ipv4.sysctl_ping_group_range);
+	write_seqlock(&net->ipv4.sysctl_local_ports.lock);
 	data[0] = low;
 	data[1] = high;
-	write_sequnlock(&sysctl_local_ports.lock);
+	write_sequnlock(&net->ipv4.sysctl_local_ports.lock);
 }
 
 /* Validate changes from /proc interface. */
@@ -474,13 +481,6 @@ static struct ctl_table ipv4_table[] = {
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec
 	},
-	{
-		.procname	= "ip_local_port_range",
-		.data		= &sysctl_local_ports.range,
-		.maxlen		= sizeof(sysctl_local_ports.range),
-		.mode		= 0644,
-		.proc_handler	= ipv4_local_port_range,
-	},
 	{
 		.procname	= "ip_local_reserved_ports",
 		.data		= NULL, /* initialized in sysctl_ipv4_init */
@@ -853,6 +853,13 @@ static struct ctl_table ipv4_net_table[] = {
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec
 	},
+	{
+		.procname	= "ip_local_port_range",
+		.maxlen		= sizeof(init_net.ipv4.sysctl_local_ports.range),
+		.data		= &init_net.ipv4.sysctl_local_ports.range,
+		.mode		= 0644,
+		.proc_handler	= ipv4_local_port_range,
+	},
 	{
 		.procname	= "tcp_mem",
 		.maxlen		= sizeof(init_net.ipv4.sysctl_tcp_mem),
@@ -888,6 +895,8 @@ static __net_init int ipv4_sysctl_init_net(struct net *net)
 			&net->ipv4.sysctl_ping_group_range;
 		table[7].data =
 			&net->ipv4.sysctl_tcp_ecn;
+		table[8].data =
+			&net->ipv4.sysctl_local_ports.range;
 
 		/* Don't export sysctls to unprivileged users */
 		if (net->user_ns != &init_user_ns)
@@ -901,6 +910,13 @@ static __net_init int ipv4_sysctl_init_net(struct net *net)
 	net->ipv4.sysctl_ping_group_range[0] = make_kgid(&init_user_ns, 1);
 	net->ipv4.sysctl_ping_group_range[1] = make_kgid(&init_user_ns, 0);
 
+	/*
+	 * Set defaults for local port range
+	 */
+	seqlock_init(&net->ipv4.sysctl_local_ports.lock);
+	net->ipv4.sysctl_local_ports.range[0] =  32768;
+	net->ipv4.sysctl_local_ports.range[1] =  61000;
+
 	tcp_init_mem(net);
 
 	net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", table);
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 22462d947750..728ce9503a27 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -219,7 +219,7 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum,
 		unsigned short first, last;
 		DECLARE_BITMAP(bitmap, PORTS_PER_CHAIN);
 
-		inet_get_local_port_range(&low, &high);
+		inet_get_local_port_range(net, &low, &high);
 		remaining = (high - low) + 1;
 
 		rand = net_random();
diff --git a/net/openvswitch/vport-vxlan.c b/net/openvswitch/vport-vxlan.c
index a481c03e2861..56e22b74cf96 100644
--- a/net/openvswitch/vport-vxlan.c
+++ b/net/openvswitch/vport-vxlan.c
@@ -173,7 +173,7 @@ static int vxlan_tnl_send(struct vport *vport, struct sk_buff *skb)
 
 	skb->local_df = 1;
 
-	inet_get_local_port_range(&port_min, &port_max);
+	inet_get_local_port_range(net, &port_min, &port_max);
 	src_port = vxlan_src_port(port_min, port_max, skb);
 
 	err = vxlan_xmit_skb(vxlan_port->vs, rt, skb,
diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 911b71b26b0e..72046b9729a8 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -5890,7 +5890,7 @@ static long sctp_get_port_local(struct sock *sk, union sctp_addr *addr)
 		int low, high, remaining, index;
 		unsigned int rover;
 
-		inet_get_local_port_range(&low, &high);
+		inet_get_local_port_range(sock_net(sk), &low, &high);
 		remaining = (high - low) + 1;
 		rover = net_random() % remaining + low;
 
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index a5091ec06aa6..568c7699abf1 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -3929,7 +3929,7 @@ static int selinux_socket_bind(struct socket *sock, struct sockaddr *address, in
 		if (snum) {
 			int low, high;
 
-			inet_get_local_port_range(&low, &high);
+			inet_get_local_port_range(sock_net(sk), &low, &high);
 
 			if (snum < max(PROT_SOCK, low) || snum > high) {
 				err = sel_netport_sid(sk->sk_protocol,
-- 
cgit 


From 5055544e96ca2ef8a0b62e7ea3c21460698d43ef Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 28 Sep 2013 23:22:18 +0200
Subject: b44: add support for Byte Queue Limits

This makes it possible to use some more advanced queuing
techniques with this driver.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/b44.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/b44.c b/drivers/net/ethernet/broadcom/b44.c
index 9b017d9c58e9..c96930f12932 100644
--- a/drivers/net/ethernet/broadcom/b44.c
+++ b/drivers/net/ethernet/broadcom/b44.c
@@ -596,6 +596,7 @@ static void b44_timer(unsigned long __opaque)
 static void b44_tx(struct b44 *bp)
 {
 	u32 cur, cons;
+	unsigned bytes_compl = 0, pkts_compl = 0;
 
 	cur  = br32(bp, B44_DMATX_STAT) & DMATX_STAT_CDMASK;
 	cur /= sizeof(struct dma_desc);
@@ -612,9 +613,14 @@ static void b44_tx(struct b44 *bp)
 				 skb->len,
 				 DMA_TO_DEVICE);
 		rp->skb = NULL;
+
+		bytes_compl += skb->len;
+		pkts_compl++;
+
 		dev_kfree_skb_irq(skb);
 	}
 
+	netdev_completed_queue(bp->dev, pkts_compl, bytes_compl);
 	bp->tx_cons = cons;
 	if (netif_queue_stopped(bp->dev) &&
 	    TX_BUFFS_AVAIL(bp) > B44_TX_WAKEUP_THRESH)
@@ -1018,6 +1024,8 @@ static netdev_tx_t b44_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (bp->flags & B44_FLAG_REORDER_BUG)
 		br32(bp, B44_DMATX_PTR);
 
+	netdev_sent_queue(dev, skb->len);
+
 	if (TX_BUFFS_AVAIL(bp) < 1)
 		netif_stop_queue(dev);
 
@@ -1416,6 +1424,8 @@ static void b44_init_hw(struct b44 *bp, int reset_kind)
 
 	val = br32(bp, B44_ENET_CTRL);
 	bw32(bp, B44_ENET_CTRL, (val | ENET_CTRL_ENABLE));
+
+	netdev_reset_queue(bp->dev);
 }
 
 static int b44_open(struct net_device *dev)
-- 
cgit 


From 49a467b4f607245d44d21627999ab75abe2c7f8b Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sun, 29 Sep 2013 13:54:58 +0200
Subject: bgmac: add support for Byte Queue Limits

This makes it possible to use some more advanced queuing
techniques with this driver.

When multi queue support will be added some changes to Byte Queue
handling is needed.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bgmac.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index 249468f95365..7eca5a174733 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -149,6 +149,8 @@ static netdev_tx_t bgmac_dma_tx_add(struct bgmac *bgmac,
 	dma_desc->ctl0 = cpu_to_le32(ctl0);
 	dma_desc->ctl1 = cpu_to_le32(ctl1);
 
+	netdev_sent_queue(net_dev, skb->len);
+
 	wmb();
 
 	/* Increase ring->end to point empty slot. We tell hardware the first
@@ -178,6 +180,7 @@ static void bgmac_dma_tx_free(struct bgmac *bgmac, struct bgmac_dma_ring *ring)
 	struct device *dma_dev = bgmac->core->dma_dev;
 	int empty_slot;
 	bool freed = false;
+	unsigned bytes_compl = 0, pkts_compl = 0;
 
 	/* The last slot that hardware didn't consume yet */
 	empty_slot = bgmac_read(bgmac, ring->mmio_base + BGMAC_DMA_TX_STATUS);
@@ -195,6 +198,9 @@ static void bgmac_dma_tx_free(struct bgmac *bgmac, struct bgmac_dma_ring *ring)
 					 slot->skb->len, DMA_TO_DEVICE);
 			slot->dma_addr = 0;
 
+			bytes_compl += slot->skb->len;
+			pkts_compl++;
+
 			/* Free memory! :) */
 			dev_kfree_skb(slot->skb);
 			slot->skb = NULL;
@@ -208,6 +214,8 @@ static void bgmac_dma_tx_free(struct bgmac *bgmac, struct bgmac_dma_ring *ring)
 		freed = true;
 	}
 
+	netdev_completed_queue(bgmac->net_dev, pkts_compl, bytes_compl);
+
 	if (freed && netif_queue_stopped(bgmac->net_dev))
 		netif_wake_queue(bgmac->net_dev);
 }
@@ -988,6 +996,8 @@ static void bgmac_chip_reset(struct bgmac *bgmac)
 	bgmac_miiconfig(bgmac);
 	bgmac_phy_init(bgmac);
 
+	netdev_reset_queue(bgmac->net_dev);
+
 	bgmac->int_status = 0;
 }
 
-- 
cgit 


From c3f40d7c04152c6f168db2f9b43438015cf092c4 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sun, 29 Sep 2013 01:12:40 -0700
Subject: net: add missing sk_max_pacing_rate doc

Warning(include/net/sock.h:411): No description found for parameter
'sk_max_pacing_rate'

Lets please "make htmldocs" and kbuild bot.

Reported-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/sock.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/net/sock.h b/include/net/sock.h
index 240aa3f08cd6..cf91c8edcfc4 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -233,6 +233,7 @@ struct cg_proto;
   *	@sk_ll_usec: usecs to busypoll when there is no data
   *	@sk_allocation: allocation mode
   *	@sk_pacing_rate: Pacing rate (if supported by transport/packet scheduler)
+  *	@sk_max_pacing_rate: Maximum pacing rate (%SO_MAX_PACING_RATE)
   *	@sk_sndbuf: size of send buffer in bytes
   *	@sk_flags: %SO_LINGER (l_onoff), %SO_BROADCAST, %SO_KEEPALIVE,
   *		   %SO_OOBINLINE settings, %SO_TIMESTAMPING settings
-- 
cgit 


From 36a8f39e05ccc308a5619a7edb5ad6e15ee82ff6 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sun, 29 Sep 2013 01:21:32 -0700
Subject: net: skb_is_gso_v6() requires skb_is_gso()

bnx2x makes a dangerous use of skb_is_gso_v6().

It should first make sure skb is a gso packet

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Eilon Greenstein <eilong@broadcom.com>
Acked-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 18 ++++++++++--------
 include/linux/skbuff.h                          |  1 +
 2 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 61726af1de6e..0c7fb1ed1261 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -3256,14 +3256,16 @@ static u32 bnx2x_xmit_type(struct bnx2x *bp, struct sk_buff *skb)
 	if (prot == IPPROTO_TCP)
 		rc |= XMIT_CSUM_TCP;
 
-	if (skb_is_gso_v6(skb)) {
-		rc |= (XMIT_GSO_V6 | XMIT_CSUM_TCP);
-		if (rc & XMIT_CSUM_ENC)
-			rc |= XMIT_GSO_ENC_V6;
-	} else if (skb_is_gso(skb)) {
-		rc |= (XMIT_GSO_V4 | XMIT_CSUM_TCP);
-		if (rc & XMIT_CSUM_ENC)
-			rc |= XMIT_GSO_ENC_V4;
+	if (skb_is_gso(skb)) {
+		if (skb_is_gso_v6(skb)) {
+			rc |= (XMIT_GSO_V6 | XMIT_CSUM_TCP);
+			if (rc & XMIT_CSUM_ENC)
+				rc |= XMIT_GSO_ENC_V6;
+		} else {
+			rc |= (XMIT_GSO_V4 | XMIT_CSUM_TCP);
+			if (rc & XMIT_CSUM_ENC)
+				rc |= XMIT_GSO_ENC_V4;
+		}
 	}
 
 	return rc;
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 6d56840e561e..d72d71efa7a3 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2755,6 +2755,7 @@ static inline bool skb_is_gso(const struct sk_buff *skb)
 	return skb_shinfo(skb)->gso_size;
 }
 
+/* Note: Should be called only if skb_is_gso(skb) is true */
 static inline bool skb_is_gso_v6(const struct sk_buff *skb)
 {
 	return skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6;
-- 
cgit 


From eea3b201970b4025baa04a83ff674b1b7e5d0802 Mon Sep 17 00:00:00 2001
From: Avinash Kumar <avi.kp.137@gmail.com>
Date: Mon, 30 Sep 2013 09:36:44 +0530
Subject: drivers: net: phy: marvell.c: removed checkpatch.pl warnings

removes following warnings-
drivers/net/phy/marvell.c:37: WARNING: Use #include <linux/io.h> instead of <asm/io.h>
drivers/net/phy/marvell.c:39: WARNING: Use #include <linux/uaccess.h> instead of <asm/uaccess.h>

Signed-off-by: Avinash Kumar <avi.kp.137@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/phy/marvell.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c
index 2e91477362d4..2e3c778ea9bf 100644
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -34,9 +34,9 @@
 #include <linux/marvell_phy.h>
 #include <linux/of.h>
 
-#include <asm/io.h>
+#include <linux/io.h>
 #include <asm/irq.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 #define MII_MARVELL_PHY_PAGE		22
 
-- 
cgit 


From b32418705107265dfca5edfe2b547643e53a732e Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Sat, 28 Sep 2013 21:18:56 +0200
Subject: bonding: RCUify bond_set_rx_mode()

Currently we rely on rtnl locking in bond_set_rx_mode(), however it's not
always the case:

RTNL: assertion failed at drivers/net/bonding/bond_main.c (3391)
...
 [<ffffffff81651ca5>] dump_stack+0x54/0x74
 [<ffffffffa029e717>] bond_set_rx_mode+0xc7/0xd0 [bonding]
 [<ffffffff81553af7>] __dev_set_rx_mode+0x57/0xa0
 [<ffffffff81557ff8>] __dev_mc_add+0x58/0x70
 [<ffffffff81558020>] dev_mc_add+0x10/0x20
 [<ffffffff8161e26e>] igmp6_group_added+0x18e/0x1d0
 [<ffffffff81186f76>] ? kmem_cache_alloc_trace+0x236/0x260
 [<ffffffff8161f80f>] ipv6_dev_mc_inc+0x29f/0x320
 [<ffffffff8161f9e7>] ipv6_sock_mc_join+0x157/0x260
...

Fix this by using RCU primitives.

Reported-by: Joe Lawrence <joe.lawrence@stratus.com>
Tested-by: Joe Lawrence <joe.lawrence@stratus.com>
CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_main.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 0367f8095390..894a7f34f88e 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3393,20 +3393,21 @@ static void bond_set_rx_mode(struct net_device *bond_dev)
 	struct list_head *iter;
 	struct slave *slave;
 
-	ASSERT_RTNL();
 
+	rcu_read_lock();
 	if (USES_PRIMARY(bond->params.mode)) {
-		slave = rtnl_dereference(bond->curr_active_slave);
+		slave = rcu_dereference(bond->curr_active_slave);
 		if (slave) {
 			dev_uc_sync(slave->dev, bond_dev);
 			dev_mc_sync(slave->dev, bond_dev);
 		}
 	} else {
-		bond_for_each_slave(bond, slave, iter) {
+		bond_for_each_slave_rcu(bond, slave, iter) {
 			dev_uc_sync_multiple(slave->dev, bond_dev);
 			dev_mc_sync_multiple(slave->dev, bond_dev);
 		}
 	}
+	rcu_read_unlock();
 }
 
 static int bond_neigh_init(struct neighbour *n)
-- 
cgit 


From cccd3a258eef7a8451e25b7bf55503973de4e9f5 Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Mon, 30 Sep 2013 22:48:46 -0500
Subject: usb: wusbcore: fix build warning on 64-bit builds

Fix a build warning found by the kbuild test robot in the most recent
wusbcore patches.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/wa-xfer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index d26083673652..9dabd8957d60 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -301,7 +301,7 @@ static unsigned __wa_xfer_is_done(struct wa_xfer *xfer)
 			break;
 		case WA_SEG_ERROR:
 			xfer->result = seg->result;
-			dev_dbg(dev, "xfer %p ID %08X#%u: ERROR result %zu(0x%08X)\n",
+			dev_dbg(dev, "xfer %p ID %08X#%u: ERROR result %zu(0x%08zX)\n",
 				xfer, wa_xfer_id(xfer), seg->index, seg->result,
 				seg->result);
 			goto out;
-- 
cgit 


From 6f1156383a419a4d19bdc196ffa8d4dbe2f01b36 Mon Sep 17 00:00:00 2001
From: Fan Du <fan.du@windriver.com>
Date: Mon, 23 Sep 2013 17:18:25 +0800
Subject: xfrm: Force SA to be lookup again if SA in acquire state

If SA is in the process of acquiring, which indicates this SA is more
promising and precise than the fall back option, i.e. using wild card
source address for searching less suitable SA.

So, here bail out, and try again.

Signed-off-by: Fan Du <fan.du@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
 net/xfrm/xfrm_state.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index d6e7f98fbfbf..b2117a161d8b 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -815,7 +815,7 @@ xfrm_state_find(const xfrm_address_t *daddr, const xfrm_address_t *saddr,
 			xfrm_state_look_at(pol, x, fl, encap_family,
 					   &best, &acquire_in_progress, &error);
 	}
-	if (best)
+	if (best || acquire_in_progress)
 		goto found;
 
 	h_wildcard = xfrm_dst_hash(net, daddr, &saddr_wildcard, tmpl->reqid, encap_family);
-- 
cgit 


From f59bbdfa5c6e2a2f74f0e03d1beab6ddb9b3d466 Mon Sep 17 00:00:00 2001
From: Fan Du <fan.du@windriver.com>
Date: Fri, 27 Sep 2013 16:32:50 +0800
Subject: xfrm: Simplify SA looking up when using wildcard source

__xfrm4/6_state_addr_check is a four steps check, all we need to do
is checking whether the destination address match when looking SA
using wildcard source address. Passing saddr from flow is worst option,
as the checking needs to reach the fourth step while actually only
one time checking will do the work.

So, simplify this process by only checking destination address when
using wildcard source address for looking up SAs.

Signed-off-by: Fan Du <fan.du@windriver.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
 net/xfrm/xfrm_state.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index b2117a161d8b..68c2f357a183 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -824,7 +824,7 @@ xfrm_state_find(const xfrm_address_t *daddr, const xfrm_address_t *saddr,
 		    x->props.reqid == tmpl->reqid &&
 		    (mark & x->mark.m) == x->mark.v &&
 		    !(x->props.flags & XFRM_STATE_WILDRECV) &&
-		    xfrm_state_addr_check(x, daddr, saddr, encap_family) &&
+		    xfrm_addr_equal(&x->id.daddr, daddr, encap_family) &&
 		    tmpl->mode == x->props.mode &&
 		    tmpl->id.proto == x->id.proto &&
 		    (tmpl->id.spi == x->id.spi || !tmpl->id.spi))
-- 
cgit 


From a72be8b89eb97655ea9b474bc7d6306672a922c2 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 1 Oct 2013 10:28:58 +0200
Subject: ARM: w90x900: delete <mach/gpio.h>

The local <mach/gpio.h> file on the w90x900 is completely unused
and the platform does not define NEED_MACH_GPIO_H.

Cc: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-w90x900/include/mach/gpio.h | 30 ------------------------------
 1 file changed, 30 deletions(-)
 delete mode 100644 arch/arm/mach-w90x900/include/mach/gpio.h

diff --git a/arch/arm/mach-w90x900/include/mach/gpio.h b/arch/arm/mach-w90x900/include/mach/gpio.h
deleted file mode 100644
index 5385a4203277..000000000000
--- a/arch/arm/mach-w90x900/include/mach/gpio.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * linux/arch/arm/mach-w90p910/include/mach/gpio.h
- *
- * Generic w90p910 GPIO handling
- *
- *  Wan ZongShun <mcuos.com@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef __ASM_ARCH_W90P910_GPIO_H
-#define __ASM_ARCH_W90P910_GPIO_H
-
-#include <mach/hardware.h>
-#include <asm/irq.h>
-
-static inline int gpio_to_irq(unsigned gpio)
-{
-	return gpio;
-}
-#define gpio_to_irq gpio_to_irq
-
-static inline int irq_to_gpio(unsigned irq)
-{
-	return irq;
-}
-
-#endif
-- 
cgit 


From 85649711a8959f181b8b646bb985996736af97b8 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 1 Oct 2013 10:45:42 +0200
Subject: ARM: gemini: delete <mach/gpio.h>

The Gemini has no need of a <mach/gpio.h> header as this is only
used by the machine-local gpio.c gpiochip driver, which is also
only using the irq_to_gpio() macro. Delete the file, move the single
macro into the driver and remove the NEED_MACH_GPIO_H flag.

Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/Kconfig                         |  1 -
 arch/arm/mach-gemini/gpio.c              |  2 +-
 arch/arm/mach-gemini/include/mach/gpio.h | 20 --------------------
 3 files changed, 1 insertion(+), 22 deletions(-)
 delete mode 100644 arch/arm/mach-gemini/include/mach/gpio.h

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index c0ed4b2a7ca1..e4061de9999c 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -388,7 +388,6 @@ config ARCH_GEMINI
 	select ARCH_REQUIRE_GPIOLIB
 	select ARCH_USES_GETTIMEOFFSET
 	select CPU_FA526
-	select NEED_MACH_GPIO_H
 	help
 	  Support for the Cortina Systems Gemini family SoCs
 
diff --git a/arch/arm/mach-gemini/gpio.c b/arch/arm/mach-gemini/gpio.c
index 70bfa571b24b..f8cb5710d6ee 100644
--- a/arch/arm/mach-gemini/gpio.c
+++ b/arch/arm/mach-gemini/gpio.c
@@ -21,9 +21,9 @@
 
 #include <mach/hardware.h>
 #include <mach/irqs.h>
-#include <mach/gpio.h>
 
 #define GPIO_BASE(x)		IO_ADDRESS(GEMINI_GPIO_BASE(x))
+#define irq_to_gpio(x)		((x) - GPIO_IRQ_BASE)
 
 /* GPIO registers definition */
 #define GPIO_DATA_OUT		0x0
diff --git a/arch/arm/mach-gemini/include/mach/gpio.h b/arch/arm/mach-gemini/include/mach/gpio.h
deleted file mode 100644
index 40a0527bada7..000000000000
--- a/arch/arm/mach-gemini/include/mach/gpio.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * Gemini gpiolib specific defines
- *
- * Copyright (C) 2008-2009 Paulius Zaleckas <paulius.zaleckas@teltonika.lt>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-#ifndef __MACH_GPIO_H__
-#define __MACH_GPIO_H__
-
-#include <mach/irqs.h>
-
-#define gpio_to_irq(x)	((x) + GPIO_IRQ_BASE)
-#define irq_to_gpio(x)	((x) - GPIO_IRQ_BASE)
-
-#endif /* __MACH_GPIO_H__ */
-- 
cgit 


From a17bce4d1dce8f3cf714bc2e5d8e4bac009dc077 Mon Sep 17 00:00:00 2001
From: Borislav Petkov <bp@alien8.de>
Date: Mon, 30 Sep 2013 11:56:24 +0200
Subject: x86/boot: Further compress CPUs bootup message

Turn it into (for example):

[    0.073380] x86: Booting SMP configuration:
[    0.074005] .... node   #0, CPUs:          #1   #2   #3   #4   #5   #6   #7
[    0.603005] .... node   #1, CPUs:     #8   #9  #10  #11  #12  #13  #14  #15
[    1.200005] .... node   #2, CPUs:    #16  #17  #18  #19  #20  #21  #22  #23
[    1.796005] .... node   #3, CPUs:    #24  #25  #26  #27  #28  #29  #30  #31
[    2.393005] .... node   #4, CPUs:    #32  #33  #34  #35  #36  #37  #38  #39
[    2.996005] .... node   #5, CPUs:    #40  #41  #42  #43  #44  #45  #46  #47
[    3.600005] .... node   #6, CPUs:    #48  #49  #50  #51  #52  #53  #54  #55
[    4.202005] .... node   #7, CPUs:    #56  #57  #58  #59  #60  #61  #62  #63
[    4.811005] .... node   #8, CPUs:    #64  #65  #66  #67  #68  #69  #70  #71
[    5.421006] .... node   #9, CPUs:    #72  #73  #74  #75  #76  #77  #78  #79
[    6.032005] .... node  #10, CPUs:    #80  #81  #82  #83  #84  #85  #86  #87
[    6.648006] .... node  #11, CPUs:    #88  #89  #90  #91  #92  #93  #94  #95
[    7.262005] .... node  #12, CPUs:    #96  #97  #98  #99 #100 #101 #102 #103
[    7.865005] .... node  #13, CPUs:   #104 #105 #106 #107 #108 #109 #110 #111
[    8.466005] .... node  #14, CPUs:   #112 #113 #114 #115 #116 #117 #118 #119
[    9.073006] .... node  #15, CPUs:   #120 #121 #122 #123 #124 #125 #126 #127
[    9.679901] x86: Booted up 16 nodes, 128 CPUs

and drop useless elements.

Change num_digits() to hpa's division-avoiding, cell-phone-typed
version which he went at great lengths and pains to submit on a
Saturday evening.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: huawei.libin@huawei.com
Cc: wangyijing@huawei.com
Cc: fenghua.yu@intel.com
Cc: guohanjun@huawei.com
Cc: paul.gortmaker@windriver.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/20130930095624.GB16383@pd.tnic
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/smpboot.c | 24 +++++++++++++++++++-----
 arch/x86/lib/misc.c       | 20 +++++++++++++++-----
 kernel/smp.c              |  7 ++++++-
 3 files changed, 40 insertions(+), 11 deletions(-)

diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index d41f3ba26ced..2a165580fa16 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -647,22 +647,38 @@ wakeup_secondary_cpu_via_init(int phys_apicid, unsigned long start_eip)
 	return (send_status | accept_status);
 }
 
+void smp_announce(void)
+{
+	int num_nodes = num_online_nodes();
+
+	printk(KERN_INFO "x86: Booted up %d node%s, %d CPUs\n",
+	       num_nodes, (num_nodes > 1 ? "s" : ""), num_online_cpus());
+}
+
 /* reduce the number of lines printed when booting a large cpu count system */
 static void announce_cpu(int cpu, int apicid)
 {
 	static int current_node = -1;
 	int node = early_cpu_to_node(cpu);
-	static int width;
+	static int width, node_width;
 
 	if (!width)
 		width = num_digits(num_possible_cpus()) + 1; /* + '#' sign */
 
+	if (!node_width)
+		node_width = num_digits(num_possible_nodes()) + 1; /* + '#' */
+
+	if (cpu == 1)
+		printk(KERN_INFO "x86: Booting SMP configuration:\n");
+
 	if (system_state == SYSTEM_BOOTING) {
 		if (node != current_node) {
 			if (current_node > (-1))
-				pr_cont(" OK\n");
+				pr_cont("\n");
 			current_node = node;
-			pr_info("Booting Node %3d, Processors:", node);
+
+			printk(KERN_INFO ".... node %*s#%d, CPUs:  ",
+			       node_width - num_digits(node), " ", node);
 		}
 
 		/* Add padding for the BSP */
@@ -671,8 +687,6 @@ static void announce_cpu(int cpu, int apicid)
 
 		pr_cont("%*s#%d", width - num_digits(cpu), " ", cpu);
 
-		if (cpu == num_present_cpus() - 1)
-			pr_cont(" OK\n");
 	} else
 		pr_info("Booting Node %d Processor %d APIC 0x%x\n",
 			node, cpu, apicid);
diff --git a/arch/x86/lib/misc.c b/arch/x86/lib/misc.c
index bc35cde9769f..76b373af03f0 100644
--- a/arch/x86/lib/misc.c
+++ b/arch/x86/lib/misc.c
@@ -1,11 +1,21 @@
+/*
+ * Count the digits of @val including a possible sign.
+ *
+ * (Typed on and submitted from hpa's mobile phone.)
+ */
 int num_digits(int val)
 {
-	int digits = 0;
+	int m = 10;
+	int d = 1;
 
-	while (val) {
-		val /= 10;
-		digits++;
+	if (val < 0) {
+		d++;
+		val = -val;
 	}
 
-	return digits;
+	while (val >= m) {
+		m *= 10;
+		d++;
+	}
+	return d;
 }
diff --git a/kernel/smp.c b/kernel/smp.c
index 0564571dcdf7..f5768b0c816a 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -524,6 +524,11 @@ void __init setup_nr_cpu_ids(void)
 	nr_cpu_ids = find_last_bit(cpumask_bits(cpu_possible_mask),NR_CPUS) + 1;
 }
 
+void __weak smp_announce(void)
+{
+	printk(KERN_INFO "Brought up %d CPUs\n", num_online_cpus());
+}
+
 /* Called by boot processor to activate the rest. */
 void __init smp_init(void)
 {
@@ -540,7 +545,7 @@ void __init smp_init(void)
 	}
 
 	/* Any cleanup work */
-	printk(KERN_INFO "Brought up %ld CPUs\n", (long)num_online_cpus());
+	smp_announce();
 	smp_cpus_done(setup_max_cpus);
 }
 
-- 
cgit 


From f364ef99a8e82ee27933d6a0cf5cc1f27e9f0df9 Mon Sep 17 00:00:00 2001
From: Eliad Peller <eliad@wizery.com>
Date: Tue, 27 Aug 2013 12:40:15 +0300
Subject: mac80211: fix some snprintf misuses

In some debugfs related functions snprintf was used
while scnprintf should have been used instead.

(blindly adding the return value of snprintf and supplying
it to the next snprintf might result in buffer overflow when
the input is too big)

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/debugfs.c             | 55 ++++++++++++++++++++------------------
 net/mac80211/rc80211_pid_debugfs.c | 26 +++++++++---------
 net/wireless/debugfs.c             | 24 +++++++++--------
 3 files changed, 55 insertions(+), 50 deletions(-)

diff --git a/net/mac80211/debugfs.c b/net/mac80211/debugfs.c
index b0e32d628114..5c090e41d9bb 100644
--- a/net/mac80211/debugfs.c
+++ b/net/mac80211/debugfs.c
@@ -103,54 +103,57 @@ static ssize_t hwflags_read(struct file *file, char __user *user_buf,
 	if (!buf)
 		return 0;
 
-	sf += snprintf(buf, mxln - sf, "0x%x\n", local->hw.flags);
+	sf += scnprintf(buf, mxln - sf, "0x%x\n", local->hw.flags);
 	if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
-		sf += snprintf(buf + sf, mxln - sf, "HAS_RATE_CONTROL\n");
+		sf += scnprintf(buf + sf, mxln - sf, "HAS_RATE_CONTROL\n");
 	if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
-		sf += snprintf(buf + sf, mxln - sf, "RX_INCLUDES_FCS\n");
+		sf += scnprintf(buf + sf, mxln - sf, "RX_INCLUDES_FCS\n");
 	if (local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING)
-		sf += snprintf(buf + sf, mxln - sf,
-			       "HOST_BCAST_PS_BUFFERING\n");
+		sf += scnprintf(buf + sf, mxln - sf,
+				"HOST_BCAST_PS_BUFFERING\n");
 	if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)
-		sf += snprintf(buf + sf, mxln - sf,
-			       "2GHZ_SHORT_SLOT_INCAPABLE\n");
+		sf += scnprintf(buf + sf, mxln - sf,
+				"2GHZ_SHORT_SLOT_INCAPABLE\n");
 	if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)
-		sf += snprintf(buf + sf, mxln - sf,
-			       "2GHZ_SHORT_PREAMBLE_INCAPABLE\n");
+		sf += scnprintf(buf + sf, mxln - sf,
+				"2GHZ_SHORT_PREAMBLE_INCAPABLE\n");
 	if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
-		sf += snprintf(buf + sf, mxln - sf, "SIGNAL_UNSPEC\n");
+		sf += scnprintf(buf + sf, mxln - sf, "SIGNAL_UNSPEC\n");
 	if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
-		sf += snprintf(buf + sf, mxln - sf, "SIGNAL_DBM\n");
+		sf += scnprintf(buf + sf, mxln - sf, "SIGNAL_DBM\n");
 	if (local->hw.flags & IEEE80211_HW_NEED_DTIM_BEFORE_ASSOC)
-		sf += snprintf(buf + sf, mxln - sf, "NEED_DTIM_BEFORE_ASSOC\n");
+		sf += scnprintf(buf + sf, mxln - sf,
+				"NEED_DTIM_BEFORE_ASSOC\n");
 	if (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT)
-		sf += snprintf(buf + sf, mxln - sf, "SPECTRUM_MGMT\n");
+		sf += scnprintf(buf + sf, mxln - sf, "SPECTRUM_MGMT\n");
 	if (local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION)
-		sf += snprintf(buf + sf, mxln - sf, "AMPDU_AGGREGATION\n");
+		sf += scnprintf(buf + sf, mxln - sf, "AMPDU_AGGREGATION\n");
 	if (local->hw.flags & IEEE80211_HW_SUPPORTS_PS)
-		sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PS\n");
+		sf += scnprintf(buf + sf, mxln - sf, "SUPPORTS_PS\n");
 	if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
-		sf += snprintf(buf + sf, mxln - sf, "PS_NULLFUNC_STACK\n");
+		sf += scnprintf(buf + sf, mxln - sf, "PS_NULLFUNC_STACK\n");
 	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
-		sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_PS\n");
+		sf += scnprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_PS\n");
 	if (local->hw.flags & IEEE80211_HW_MFP_CAPABLE)
-		sf += snprintf(buf + sf, mxln - sf, "MFP_CAPABLE\n");
+		sf += scnprintf(buf + sf, mxln - sf, "MFP_CAPABLE\n");
 	if (local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS)
-		sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_STATIC_SMPS\n");
+		sf += scnprintf(buf + sf, mxln - sf, "SUPPORTS_STATIC_SMPS\n");
 	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS)
-		sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_SMPS\n");
+		sf += scnprintf(buf + sf, mxln - sf,
+				"SUPPORTS_DYNAMIC_SMPS\n");
 	if (local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)
-		sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_UAPSD\n");
+		sf += scnprintf(buf + sf, mxln - sf, "SUPPORTS_UAPSD\n");
 	if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
-		sf += snprintf(buf + sf, mxln - sf, "REPORTS_TX_ACK_STATUS\n");
+		sf += scnprintf(buf + sf, mxln - sf,
+				"REPORTS_TX_ACK_STATUS\n");
 	if (local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
-		sf += snprintf(buf + sf, mxln - sf, "CONNECTION_MONITOR\n");
+		sf += scnprintf(buf + sf, mxln - sf, "CONNECTION_MONITOR\n");
 	if (local->hw.flags & IEEE80211_HW_SUPPORTS_PER_STA_GTK)
-		sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PER_STA_GTK\n");
+		sf += scnprintf(buf + sf, mxln - sf, "SUPPORTS_PER_STA_GTK\n");
 	if (local->hw.flags & IEEE80211_HW_AP_LINK_PS)
-		sf += snprintf(buf + sf, mxln - sf, "AP_LINK_PS\n");
+		sf += scnprintf(buf + sf, mxln - sf, "AP_LINK_PS\n");
 	if (local->hw.flags & IEEE80211_HW_TX_AMPDU_SETUP_IN_HW)
-		sf += snprintf(buf + sf, mxln - sf, "TX_AMPDU_SETUP_IN_HW\n");
+		sf += scnprintf(buf + sf, mxln - sf, "TX_AMPDU_SETUP_IN_HW\n");
 
 	rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
 	kfree(buf);
diff --git a/net/mac80211/rc80211_pid_debugfs.c b/net/mac80211/rc80211_pid_debugfs.c
index c97a0657c043..6ff134650a84 100644
--- a/net/mac80211/rc80211_pid_debugfs.c
+++ b/net/mac80211/rc80211_pid_debugfs.c
@@ -167,29 +167,29 @@ static ssize_t rate_control_pid_events_read(struct file *file, char __user *buf,
 	 * provide large enough buffers. */
 	length = length < RC_PID_PRINT_BUF_SIZE ?
 		 length : RC_PID_PRINT_BUF_SIZE;
-	p = snprintf(pb, length, "%u %lu ", ev->id, ev->timestamp);
+	p = scnprintf(pb, length, "%u %lu ", ev->id, ev->timestamp);
 	switch (ev->type) {
 	case RC_PID_EVENT_TYPE_TX_STATUS:
-		p += snprintf(pb + p, length - p, "tx_status %u %u",
-			      !(ev->data.flags & IEEE80211_TX_STAT_ACK),
-			      ev->data.tx_status.status.rates[0].idx);
+		p += scnprintf(pb + p, length - p, "tx_status %u %u",
+			       !(ev->data.flags & IEEE80211_TX_STAT_ACK),
+			       ev->data.tx_status.status.rates[0].idx);
 		break;
 	case RC_PID_EVENT_TYPE_RATE_CHANGE:
-		p += snprintf(pb + p, length - p, "rate_change %d %d",
-			      ev->data.index, ev->data.rate);
+		p += scnprintf(pb + p, length - p, "rate_change %d %d",
+			       ev->data.index, ev->data.rate);
 		break;
 	case RC_PID_EVENT_TYPE_TX_RATE:
-		p += snprintf(pb + p, length - p, "tx_rate %d %d",
-			      ev->data.index, ev->data.rate);
+		p += scnprintf(pb + p, length - p, "tx_rate %d %d",
+			       ev->data.index, ev->data.rate);
 		break;
 	case RC_PID_EVENT_TYPE_PF_SAMPLE:
-		p += snprintf(pb + p, length - p,
-			      "pf_sample %d %d %d %d",
-			      ev->data.pf_sample, ev->data.prop_err,
-			      ev->data.int_err, ev->data.der_err);
+		p += scnprintf(pb + p, length - p,
+			       "pf_sample %d %d %d %d",
+			       ev->data.pf_sample, ev->data.prop_err,
+			       ev->data.int_err, ev->data.der_err);
 		break;
 	}
-	p += snprintf(pb + p, length - p, "\n");
+	p += scnprintf(pb + p, length - p, "\n");
 
 	spin_unlock_irqrestore(&events->lock, status);
 
diff --git a/net/wireless/debugfs.c b/net/wireless/debugfs.c
index 90d050036624..454157717efa 100644
--- a/net/wireless/debugfs.c
+++ b/net/wireless/debugfs.c
@@ -47,17 +47,19 @@ static int ht_print_chan(struct ieee80211_channel *chan,
 		return 0;
 
 	if (chan->flags & IEEE80211_CHAN_DISABLED)
-		return snprintf(buf + offset,
-				buf_size - offset,
-				"%d Disabled\n",
-				chan->center_freq);
-
-	return snprintf(buf + offset,
-			buf_size - offset,
-			"%d HT40 %c%c\n",
-			chan->center_freq,
-			(chan->flags & IEEE80211_CHAN_NO_HT40MINUS) ? ' ' : '-',
-			(chan->flags & IEEE80211_CHAN_NO_HT40PLUS)  ? ' ' : '+');
+		return scnprintf(buf + offset,
+				 buf_size - offset,
+				 "%d Disabled\n",
+				 chan->center_freq);
+
+	return scnprintf(buf + offset,
+			 buf_size - offset,
+			 "%d HT40 %c%c\n",
+			 chan->center_freq,
+			 (chan->flags & IEEE80211_CHAN_NO_HT40MINUS) ?
+				' ' : '-',
+			 (chan->flags & IEEE80211_CHAN_NO_HT40PLUS) ?
+				' ' : '+');
 }
 
 static ssize_t ht40allow_map_read(struct file *file,
-- 
cgit 


From 5eb7906b47dcd906b3ffd811e689e0de4a6b1b6a Mon Sep 17 00:00:00 2001
From: Eliad Peller <eliad@wizery.com>
Date: Thu, 29 Aug 2013 15:03:14 +0300
Subject: ieee80211: fix vht cap definitions

VHT_CAP_BEAMFORMER_ANTENNAS cap is actually defined in the draft as
VHT_CAP_BEAMFORMEE_STS_MAX, and its size is 3 bits long.

VHT_CAP_SOUNDING_DIMENSIONS is also 3 bits long.

Fix the definitions and change the cap masking accordingly.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 include/linux/ieee80211.h | 4 ++--
 net/mac80211/vht.c        | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index a5b598a79bec..7c1e1ebc0e23 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -1391,8 +1391,8 @@ struct ieee80211_vht_operation {
 #define IEEE80211_VHT_CAP_RXSTBC_MASK				0x00000700
 #define IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE			0x00000800
 #define IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE			0x00001000
-#define IEEE80211_VHT_CAP_BEAMFORMER_ANTENNAS_MAX		0x00006000
-#define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MAX		0x00030000
+#define IEEE80211_VHT_CAP_BEAMFORMEE_STS_MAX			0x0000e000
+#define IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MAX		0x00070000
 #define IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE			0x00080000
 #define IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE			0x00100000
 #define IEEE80211_VHT_CAP_VHT_TXOP_PS				0x00200000
diff --git a/net/mac80211/vht.c b/net/mac80211/vht.c
index 97c289414e32..de0112785aae 100644
--- a/net/mac80211/vht.c
+++ b/net/mac80211/vht.c
@@ -185,13 +185,13 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
 	if (own_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE) {
 		vht_cap->cap |= cap_info &
 				(IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
-				 IEEE80211_VHT_CAP_BEAMFORMER_ANTENNAS_MAX |
 				 IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MAX);
 	}
 
 	if (own_cap.cap & IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE)
 		vht_cap->cap |= cap_info &
-				IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE;
+				(IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
+				 IEEE80211_VHT_CAP_BEAMFORMEE_STS_MAX);
 
 	if (own_cap.cap & IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)
 		vht_cap->cap |= cap_info &
-- 
cgit 


From 55fff50113daa178010a38e0dc27172f06d17b8e Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 19 Aug 2013 18:48:41 +0200
Subject: mac80211: add explicit IBSS driver operations

This can be useful for drivers if they have any failure cases
when joining an IBSS. Also move setting the queue parameters
to before this new call, in case the new driver op needs them
already.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 include/net/mac80211.h    |  7 +++++++
 net/mac80211/driver-ops.h | 27 +++++++++++++++++++++++++++
 net/mac80211/ibss.c       | 22 ++++++++++++++++++++--
 net/mac80211/trace.h      | 35 +++++++++++++++++++++++++++++++++++
 4 files changed, 89 insertions(+), 2 deletions(-)

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 3411c59b636b..8cff800f7046 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -2666,6 +2666,10 @@ enum ieee80211_roc_type {
  *	zero using ieee80211_csa_is_complete() after the beacon has been
  *	transmitted and then call ieee80211_csa_finish().
  *
+ * @join_ibss: Join an IBSS (on an IBSS interface); this is called after all
+ *	information in bss_conf is set up and the beacon can be retrieved. A
+ *	channel context is bound before this is called.
+ * @leave_ibss: Leave the IBSS again.
  */
 struct ieee80211_ops {
 	void (*tx)(struct ieee80211_hw *hw,
@@ -2857,6 +2861,9 @@ struct ieee80211_ops {
 	void (*channel_switch_beacon)(struct ieee80211_hw *hw,
 				      struct ieee80211_vif *vif,
 				      struct cfg80211_chan_def *chandef);
+
+	int (*join_ibss)(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
+	void (*leave_ibss)(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
 };
 
 /**
diff --git a/net/mac80211/driver-ops.h b/net/mac80211/driver-ops.h
index b3ea11f3d526..5d03c47c0a4c 100644
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -1085,4 +1085,31 @@ drv_channel_switch_beacon(struct ieee80211_sub_if_data *sdata,
 	}
 }
 
+static inline int drv_join_ibss(struct ieee80211_local *local,
+				struct ieee80211_sub_if_data *sdata)
+{
+	int ret = 0;
+
+	might_sleep();
+	check_sdata_in_driver(sdata);
+
+	trace_drv_join_ibss(local, sdata, &sdata->vif.bss_conf);
+	if (local->ops->join_ibss)
+		ret = local->ops->join_ibss(&local->hw, &sdata->vif);
+	trace_drv_return_int(local, ret);
+	return ret;
+}
+
+static inline void drv_leave_ibss(struct ieee80211_local *local,
+				  struct ieee80211_sub_if_data *sdata)
+{
+	might_sleep();
+	check_sdata_in_driver(sdata);
+
+	trace_drv_leave_ibss(local, sdata);
+	if (local->ops->leave_ibss)
+		local->ops->leave_ibss(&local->hw, &sdata->vif);
+	trace_drv_return_void(local);
+}
+
 #endif /* __MAC80211_DRIVER_OPS */
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 5ea9b3ae303e..21a0b8835cb3 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -229,6 +229,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	struct beacon_data *presp;
 	enum nl80211_bss_scan_width scan_width;
 	bool have_higher_than_11mbit;
+	int err;
 
 	sdata_assert_lock(sdata);
 
@@ -247,6 +248,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 		ieee80211_bss_info_change_notify(sdata,
 						 BSS_CHANGED_IBSS |
 						 BSS_CHANGED_BEACON_ENABLED);
+		drv_leave_ibss(local, sdata);
 	}
 
 	presp = rcu_dereference_protected(ifibss->presp,
@@ -329,11 +331,26 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	else
 		sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
 
+	ieee80211_set_wmm_default(sdata, true);
+
 	sdata->vif.bss_conf.ibss_joined = true;
 	sdata->vif.bss_conf.ibss_creator = creator;
-	ieee80211_bss_info_change_notify(sdata, bss_change);
 
-	ieee80211_set_wmm_default(sdata, true);
+	err = drv_join_ibss(local, sdata);
+	if (err) {
+		sdata->vif.bss_conf.ibss_joined = false;
+		sdata->vif.bss_conf.ibss_creator = false;
+		sdata->vif.bss_conf.enable_beacon = false;
+		sdata->vif.bss_conf.ssid_len = 0;
+		RCU_INIT_POINTER(ifibss->presp, NULL);
+		kfree_rcu(presp, rcu_head);
+		ieee80211_vif_release_channel(sdata);
+		sdata_info(sdata, "Failed to join IBSS, driver failure: %d\n",
+			   err);
+		return;
+	}
+
+	ieee80211_bss_info_change_notify(sdata, bss_change);
 
 	ifibss->state = IEEE80211_IBSS_MLME_JOINED;
 	mod_timer(&ifibss->timer,
@@ -761,6 +778,7 @@ static void ieee80211_ibss_disconnect(struct ieee80211_sub_if_data *sdata)
 	clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
 	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
 						BSS_CHANGED_IBSS);
+	drv_leave_ibss(local, sdata);
 	ieee80211_vif_release_channel(sdata);
 }
 
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 1aba645882bd..5d62c5804819 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -1475,6 +1475,41 @@ DEFINE_EVENT(local_sdata_evt, drv_ipv6_addr_change,
 );
 #endif
 
+TRACE_EVENT(drv_join_ibss,
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_sub_if_data *sdata,
+		 struct ieee80211_bss_conf *info),
+
+	TP_ARGS(local, sdata, info),
+
+	TP_STRUCT__entry(
+		LOCAL_ENTRY
+		VIF_ENTRY
+		__field(u8, dtimper)
+		__field(u16, bcnint)
+		__dynamic_array(u8, ssid, info->ssid_len);
+	),
+
+	TP_fast_assign(
+		LOCAL_ASSIGN;
+		VIF_ASSIGN;
+		__entry->dtimper = info->dtim_period;
+		__entry->bcnint = info->beacon_int;
+		memcpy(__get_dynamic_array(ssid), info->ssid, info->ssid_len);
+	),
+
+	TP_printk(
+		LOCAL_PR_FMT  VIF_PR_FMT,
+		LOCAL_PR_ARG, VIF_PR_ARG
+	)
+);
+
+DEFINE_EVENT(local_sdata_evt, drv_leave_ibss,
+	TP_PROTO(struct ieee80211_local *local,
+		 struct ieee80211_sub_if_data *sdata),
+	TP_ARGS(local, sdata)
+);
+
 /*
  * Tracing for API calls that drivers call.
  */
-- 
cgit 


From f0823475d57a1ece4fe1eafb1aef5c4fa79361aa Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Tue, 17 Sep 2013 08:25:36 +0200
Subject: cfg80211: parse dfs region for internal regdb option

Add support for parsing and setting the dfs region (ETSI, FCC, JP)
when the internal regulatory database is used. Before this
the DFS region was being ignored even if present on the used
db.txt

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Reviewed-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/wireless/genregdb.awk | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/wireless/genregdb.awk b/net/wireless/genregdb.awk
index 9392f8cbb901..42ed274e81f4 100644
--- a/net/wireless/genregdb.awk
+++ b/net/wireless/genregdb.awk
@@ -46,6 +46,12 @@ BEGIN {
 	sub(/:/, "", country)
 	printf "static const struct ieee80211_regdomain regdom_%s = {\n", country
 	printf "\t.alpha2 = \"%s\",\n", country
+	if ($NF ~ /DFS-ETSI/)
+		printf "\t.dfs_region = NL80211_DFS_ETSI,\n"
+	else if ($NF ~ /DFS-FCC/)
+		printf "\t.dfs_region = NL80211_DFS_FCC,\n"
+	else if ($NF ~ /DFS-JP/)
+		printf "\t.dfs_region = NL80211_DFS_JP,\n"
 	printf "\t.reg_rules = {\n"
 	active = 1
 	regdb = regdb "\t&regdom_" country ",\n"
-- 
cgit 


From 7433268783eda21a04bf963f9992547a848d44a4 Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Mon, 23 Sep 2013 19:20:55 +0800
Subject: netfilter: nfnetlink_queue: use proper net namespace to allocate skb

Use proper net struct to allocate skb, otherwise netlink mmap
will have no effect.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nfnetlink_queue_core.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/netfilter/nfnetlink_queue_core.c b/net/netfilter/nfnetlink_queue_core.c
index ae2e5c11d01a..21258cf70091 100644
--- a/net/netfilter/nfnetlink_queue_core.c
+++ b/net/netfilter/nfnetlink_queue_core.c
@@ -298,7 +298,7 @@ nfqnl_put_packet_info(struct sk_buff *nlskb, struct sk_buff *packet,
 }
 
 static struct sk_buff *
-nfqnl_build_packet_message(struct nfqnl_instance *queue,
+nfqnl_build_packet_message(struct net *net, struct nfqnl_instance *queue,
 			   struct nf_queue_entry *entry,
 			   __be32 **packet_id_ptr)
 {
@@ -372,7 +372,7 @@ nfqnl_build_packet_message(struct nfqnl_instance *queue,
 	if (queue->flags & NFQA_CFG_F_CONNTRACK)
 		ct = nfqnl_ct_get(entskb, &size, &ctinfo);
 
-	skb = nfnetlink_alloc_skb(&init_net, size, queue->peer_portid,
+	skb = nfnetlink_alloc_skb(net, size, queue->peer_portid,
 				  GFP_ATOMIC);
 	if (!skb)
 		return NULL;
@@ -525,7 +525,7 @@ __nfqnl_enqueue_packet(struct net *net, struct nfqnl_instance *queue,
 	__be32 *packet_id_ptr;
 	int failopen = 0;
 
-	nskb = nfqnl_build_packet_message(queue, entry, &packet_id_ptr);
+	nskb = nfqnl_build_packet_message(net, queue, entry, &packet_id_ptr);
 	if (nskb == NULL) {
 		err = -ENOMEM;
 		goto err_out;
-- 
cgit 


From 15e230abaaa5a79feb25d1ef29b380e8b63aea0c Mon Sep 17 00:00:00 2001
From: Fred Zhou <fred.zy@gmail.com>
Date: Tue, 24 Sep 2013 10:33:01 +0800
Subject: mac80211: use exact-size allocation for authentication frame

The authentication frame has a fixied size of 30 bytes
(including header, algo num, trans seq num, and status)
followed by a variable challenge text.
Allocate using exact size, instead of over-allocation
by sizeof(ieee80211_mgmt).

Signed-off-by: Fred Zhou <fred.zy@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/util.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 3c8283b9b45a..1fb31f94bf89 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1081,8 +1081,8 @@ void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_mgmt *mgmt;
 	int err;
 
-	skb = dev_alloc_skb(local->hw.extra_tx_headroom +
-			    sizeof(*mgmt) + 6 + extra_len);
+	/* 24 + 6 = header + auth_algo + auth_transaction + status_code */
+	skb = dev_alloc_skb(local->hw.extra_tx_headroom + 24 + 6 + extra_len);
 	if (!skb)
 		return;
 
-- 
cgit 


From 0cfcefef1945c6d3f24bce1c22937cfeae07eae8 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Mon, 23 Sep 2013 15:34:38 +0200
Subject: mac80211: support reporting A-MSDU subframes individually

Some devices may not be able to report A-MSDUs in
single buffers. Drivers for such devices were
forced to re-assemble A-MSDUs which would then
be eventually disassembled by mac80211. This could
lead to CPU cache thrashing and poor performance.

Since A-MSDU has a single sequence number all
subframes share it. This was in conflict with
retransmission/duplication recovery
(IEEE802.11-2012: 9.3.2.10).

Patch introduces a new flag that is meant to be
set for all individually reported A-MSDU subframes
except the last one. This ensures the
last_seq_ctrl is updated after the last subframe
is processed. If an A-MSDU is actually a duplicate
transmission all reported subframes will be
properly discarded.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
[johannes: add braces that were missing even before]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 include/net/mac80211.h | 10 ++++++++++
 net/mac80211/rx.c      |  3 ++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 8cff800f7046..da8011920b65 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -829,6 +829,15 @@ ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info)
  * @RX_FLAG_STBC_MASK: STBC 2 bit bitmask. 1 - Nss=1, 2 - Nss=2, 3 - Nss=3
  * @RX_FLAG_10MHZ: 10 MHz (half channel) was used
  * @RX_FLAG_5MHZ: 5 MHz (quarter channel) was used
+ * @RX_FLAG_AMSDU_MORE: Some drivers may prefer to report separate A-MSDU
+ *	subframes instead of a one huge frame for performance reasons.
+ *	All, but the last MSDU from an A-MSDU should have this flag set. E.g.
+ *	if an A-MSDU has 3 frames, the first 2 must have the flag set, while
+ *	the 3rd (last) one must not have this flag set. The flag is used to
+ *	deal with retransmission/duplication recovery properly since A-MSDU
+ *	subframes share the same sequence number. Reported subframes can be
+ *	either regular MSDU or singly A-MSDUs. Subframes must not be
+ *	interleaved with other frames.
  */
 enum mac80211_rx_flags {
 	RX_FLAG_MMIC_ERROR		= BIT(0),
@@ -859,6 +868,7 @@ enum mac80211_rx_flags {
 	RX_FLAG_STBC_MASK		= BIT(26) | BIT(27),
 	RX_FLAG_10MHZ			= BIT(28),
 	RX_FLAG_5MHZ			= BIT(29),
+	RX_FLAG_AMSDU_MORE		= BIT(30),
 };
 
 #define RX_FLAG_STBC_SHIFT		26
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 8e908e17e248..f0247a43a75c 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -995,8 +995,9 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx)
 				rx->sta->num_duplicates++;
 			}
 			return RX_DROP_UNUSABLE;
-		} else
+		} else if (!(status->flag & RX_FLAG_AMSDU_MORE)) {
 			rx->sta->last_seq_ctrl[rx->seqno_idx] = hdr->seq_ctrl;
+		}
 	}
 
 	if (unlikely(rx->skb->len < 16)) {
-- 
cgit 


From 1f4ffde845861acfe2eeaf6a2a965c02eecaad08 Mon Sep 17 00:00:00 2001
From: Fred Zhou <fred.zy@gmail.com>
Date: Mon, 9 Sep 2013 23:03:41 +0800
Subject: mac80211: improve default WMM parameter setting

Move the default setting for WMM parameters outside the for loop
to avoid redundant assignment multiple times.

Signed-off-by: Fred Zhou <fred.zy@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/util.c | 27 ++++++++++++++-------------
 1 file changed, 14 insertions(+), 13 deletions(-)

diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 1fb31f94bf89..550a6880625d 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1004,14 +1004,21 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
 	 */
 	enable_qos = (sdata->vif.type != NL80211_IFTYPE_STATION);
 
-	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
-		/* Set defaults according to 802.11-2007 Table 7-37 */
-		aCWmax = 1023;
-		if (use_11b)
-			aCWmin = 31;
-		else
-			aCWmin = 15;
+	/* Set defaults according to 802.11-2007 Table 7-37 */
+	aCWmax = 1023;
+	if (use_11b)
+		aCWmin = 31;
+	else
+		aCWmin = 15;
 
+	/* Confiure old 802.11b/g medium access rules. */
+	qparam.cw_max = aCWmax;
+	qparam.cw_min = aCWmin;
+	qparam.txop = 0;
+	qparam.aifs = 2;
+
+	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
+		/* Update if QoS is enabled. */
 		if (enable_qos) {
 			switch (ac) {
 			case IEEE80211_AC_BK:
@@ -1047,12 +1054,6 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
 				qparam.aifs = 2;
 				break;
 			}
-		} else {
-			/* Confiure old 802.11b/g medium access rules. */
-			qparam.cw_max = aCWmax;
-			qparam.cw_min = aCWmin;
-			qparam.txop = 0;
-			qparam.aifs = 2;
 		}
 
 		qparam.uapsd = false;
-- 
cgit 


From afff14f6089ac50f05f29e489c5b2a067077d560 Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Mon, 23 Sep 2013 19:20:56 +0800
Subject: netfilter: nfnetlink_log: use proper net to allocate skb

Use proper net struct to allocate skb, otherwise
netlink mmap will be of no effect.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nfnetlink_log.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index d92cc317bf8b..3c4b69e5fe17 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -319,7 +319,8 @@ nfulnl_set_flags(struct nfulnl_instance *inst, u_int16_t flags)
 }
 
 static struct sk_buff *
-nfulnl_alloc_skb(u32 peer_portid, unsigned int inst_size, unsigned int pkt_size)
+nfulnl_alloc_skb(struct net *net, u32 peer_portid, unsigned int inst_size,
+		 unsigned int pkt_size)
 {
 	struct sk_buff *skb;
 	unsigned int n;
@@ -328,13 +329,13 @@ nfulnl_alloc_skb(u32 peer_portid, unsigned int inst_size, unsigned int pkt_size)
 	 * message.  WARNING: has to be <= 128k due to slab restrictions */
 
 	n = max(inst_size, pkt_size);
-	skb = nfnetlink_alloc_skb(&init_net, n, peer_portid, GFP_ATOMIC);
+	skb = nfnetlink_alloc_skb(net, n, peer_portid, GFP_ATOMIC);
 	if (!skb) {
 		if (n > pkt_size) {
 			/* try to allocate only as much as we need for current
 			 * packet */
 
-			skb = nfnetlink_alloc_skb(&init_net, pkt_size,
+			skb = nfnetlink_alloc_skb(net, pkt_size,
 						  peer_portid, GFP_ATOMIC);
 			if (!skb)
 				pr_err("nfnetlink_log: can't even alloc %u bytes\n",
@@ -702,8 +703,8 @@ nfulnl_log_packet(struct net *net,
 	}
 
 	if (!inst->skb) {
-		inst->skb = nfulnl_alloc_skb(inst->peer_portid, inst->nlbufsiz,
-					     size);
+		inst->skb = nfulnl_alloc_skb(net, inst->peer_portid,
+					     inst->nlbufsiz, size);
 		if (!inst->skb)
 			goto alloc_failure;
 	}
-- 
cgit 


From 180cf72f56fab2810e00497c087c7126bfe53c85 Mon Sep 17 00:00:00 2001
From: "holger@eitzenberger.org" <holger@eitzenberger.org>
Date: Mon, 30 Sep 2013 17:07:28 +0200
Subject: netfilter: nf_ct_sip: consolidate NAT hook functions

There are currently seven different NAT hooks used in both
nf_conntrack_sip and nf_nat_sip, each of the hooks is exported in
nf_conntrack_sip, then set from the nf_nat_sip NAT helper.

And because each of them is exported there is quite some overhead
introduced due of this.

By introducing nf_nat_sip_hooks I am able to reduce both text/data
somewhat.  For nf_conntrack_sip e. g. I get

        text             data              bss              dec
old    15243             5256               32            20531
new    15010             5192               32            20234

Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/linux/netfilter/nf_conntrack_sip.h | 107 +++++++++++++-----------
 net/netfilter/nf_conntrack_sip.c           | 127 ++++++++---------------------
 net/netfilter/nf_nat_sip.c                 |  35 ++++----
 3 files changed, 107 insertions(+), 162 deletions(-)

diff --git a/include/linux/netfilter/nf_conntrack_sip.h b/include/linux/netfilter/nf_conntrack_sip.h
index ba7f571a2b1c..4cb71551f611 100644
--- a/include/linux/netfilter/nf_conntrack_sip.h
+++ b/include/linux/netfilter/nf_conntrack_sip.h
@@ -107,55 +107,64 @@ enum sdp_header_types {
 	SDP_HDR_MEDIA,
 };
 
-extern unsigned int (*nf_nat_sip_hook)(struct sk_buff *skb,
-				       unsigned int protoff,
-				       unsigned int dataoff,
-				       const char **dptr,
-				       unsigned int *datalen);
-extern void (*nf_nat_sip_seq_adjust_hook)(struct sk_buff *skb,
-					  unsigned int protoff, s16 off);
-extern unsigned int (*nf_nat_sip_expect_hook)(struct sk_buff *skb,
-					      unsigned int protoff,
-					      unsigned int dataoff,
-					      const char **dptr,
-					      unsigned int *datalen,
-					      struct nf_conntrack_expect *exp,
-					      unsigned int matchoff,
-					      unsigned int matchlen);
-extern unsigned int (*nf_nat_sdp_addr_hook)(struct sk_buff *skb,
-					    unsigned int protoff,
-					    unsigned int dataoff,
-					    const char **dptr,
-					    unsigned int *datalen,
-					    unsigned int sdpoff,
-					    enum sdp_header_types type,
-					    enum sdp_header_types term,
-					    const union nf_inet_addr *addr);
-extern unsigned int (*nf_nat_sdp_port_hook)(struct sk_buff *skb,
-					    unsigned int protoff,
-					    unsigned int dataoff,
-					    const char **dptr,
-					    unsigned int *datalen,
-					    unsigned int matchoff,
-					    unsigned int matchlen,
-					    u_int16_t port);
-extern unsigned int (*nf_nat_sdp_session_hook)(struct sk_buff *skb,
-					       unsigned int protoff,
-					       unsigned int dataoff,
-					       const char **dptr,
-					       unsigned int *datalen,
-					       unsigned int sdpoff,
-					       const union nf_inet_addr *addr);
-extern unsigned int (*nf_nat_sdp_media_hook)(struct sk_buff *skb,
-					     unsigned int protoff,
-					     unsigned int dataoff,
-					     const char **dptr,
-					     unsigned int *datalen,
-					     struct nf_conntrack_expect *rtp_exp,
-					     struct nf_conntrack_expect *rtcp_exp,
-					     unsigned int mediaoff,
-					     unsigned int medialen,
-					     union nf_inet_addr *rtp_addr);
+struct nf_nat_sip_hooks {
+	unsigned int (*msg)(struct sk_buff *skb,
+			    unsigned int protoff,
+			    unsigned int dataoff,
+			    const char **dptr,
+			    unsigned int *datalen);
+
+	void (*seq_adjust)(struct sk_buff *skb,
+			   unsigned int protoff, s16 off);
+
+	unsigned int (*expect)(struct sk_buff *skb,
+			       unsigned int protoff,
+			       unsigned int dataoff,
+			       const char **dptr,
+			       unsigned int *datalen,
+			       struct nf_conntrack_expect *exp,
+			       unsigned int matchoff,
+			       unsigned int matchlen);
+
+	unsigned int (*sdp_addr)(struct sk_buff *skb,
+				 unsigned int protoff,
+				 unsigned int dataoff,
+				 const char **dptr,
+				 unsigned int *datalen,
+				 unsigned int sdpoff,
+				 enum sdp_header_types type,
+				 enum sdp_header_types term,
+				 const union nf_inet_addr *addr);
+
+	unsigned int (*sdp_port)(struct sk_buff *skb,
+				 unsigned int protoff,
+				 unsigned int dataoff,
+				 const char **dptr,
+				 unsigned int *datalen,
+				 unsigned int matchoff,
+				 unsigned int matchlen,
+				 u_int16_t port);
+
+	unsigned int (*sdp_session)(struct sk_buff *skb,
+				    unsigned int protoff,
+				    unsigned int dataoff,
+				    const char **dptr,
+				    unsigned int *datalen,
+				    unsigned int sdpoff,
+				    const union nf_inet_addr *addr);
+
+	unsigned int (*sdp_media)(struct sk_buff *skb,
+				  unsigned int protoff,
+				  unsigned int dataoff,
+				  const char **dptr,
+				  unsigned int *datalen,
+				  struct nf_conntrack_expect *rtp_exp,
+				  struct nf_conntrack_expect *rtcp_exp,
+				  unsigned int mediaoff,
+				  unsigned int medialen,
+				  union nf_inet_addr *rtp_addr);
+};
+extern const struct nf_nat_sip_hooks *nf_nat_sip_hooks;
 
 extern int ct_sip_parse_request(const struct nf_conn *ct,
 				const char *dptr, unsigned int datalen,
diff --git a/net/netfilter/nf_conntrack_sip.c b/net/netfilter/nf_conntrack_sip.c
index 5ed8c441dffd..466410eaa482 100644
--- a/net/netfilter/nf_conntrack_sip.c
+++ b/net/netfilter/nf_conntrack_sip.c
@@ -52,66 +52,8 @@ module_param(sip_direct_media, int, 0600);
 MODULE_PARM_DESC(sip_direct_media, "Expect Media streams between signalling "
 				   "endpoints only (default 1)");
 
-unsigned int (*nf_nat_sip_hook)(struct sk_buff *skb, unsigned int protoff,
-				unsigned int dataoff, const char **dptr,
-				unsigned int *datalen) __read_mostly;
-EXPORT_SYMBOL_GPL(nf_nat_sip_hook);
-
-void (*nf_nat_sip_seq_adjust_hook)(struct sk_buff *skb, unsigned int protoff,
-				   s16 off) __read_mostly;
-EXPORT_SYMBOL_GPL(nf_nat_sip_seq_adjust_hook);
-
-unsigned int (*nf_nat_sip_expect_hook)(struct sk_buff *skb,
-				       unsigned int protoff,
-				       unsigned int dataoff,
-				       const char **dptr,
-				       unsigned int *datalen,
-				       struct nf_conntrack_expect *exp,
-				       unsigned int matchoff,
-				       unsigned int matchlen) __read_mostly;
-EXPORT_SYMBOL_GPL(nf_nat_sip_expect_hook);
-
-unsigned int (*nf_nat_sdp_addr_hook)(struct sk_buff *skb, unsigned int protoff,
-				     unsigned int dataoff,
-				     const char **dptr,
-				     unsigned int *datalen,
-				     unsigned int sdpoff,
-				     enum sdp_header_types type,
-				     enum sdp_header_types term,
-				     const union nf_inet_addr *addr)
-				     __read_mostly;
-EXPORT_SYMBOL_GPL(nf_nat_sdp_addr_hook);
-
-unsigned int (*nf_nat_sdp_port_hook)(struct sk_buff *skb, unsigned int protoff,
-				     unsigned int dataoff,
-				     const char **dptr,
-				     unsigned int *datalen,
-				     unsigned int matchoff,
-				     unsigned int matchlen,
-				     u_int16_t port) __read_mostly;
-EXPORT_SYMBOL_GPL(nf_nat_sdp_port_hook);
-
-unsigned int (*nf_nat_sdp_session_hook)(struct sk_buff *skb,
-					unsigned int protoff,
-					unsigned int dataoff,
-					const char **dptr,
-					unsigned int *datalen,
-					unsigned int sdpoff,
-					const union nf_inet_addr *addr)
-					__read_mostly;
-EXPORT_SYMBOL_GPL(nf_nat_sdp_session_hook);
-
-unsigned int (*nf_nat_sdp_media_hook)(struct sk_buff *skb, unsigned int protoff,
-				      unsigned int dataoff,
-				      const char **dptr,
-				      unsigned int *datalen,
-				      struct nf_conntrack_expect *rtp_exp,
-				      struct nf_conntrack_expect *rtcp_exp,
-				      unsigned int mediaoff,
-				      unsigned int medialen,
-				      union nf_inet_addr *rtp_addr)
-				      __read_mostly;
-EXPORT_SYMBOL_GPL(nf_nat_sdp_media_hook);
+const struct nf_nat_sip_hooks *nf_nat_sip_hooks;
+EXPORT_SYMBOL_GPL(nf_nat_sip_hooks);
 
 static int string_len(const struct nf_conn *ct, const char *dptr,
 		      const char *limit, int *shift)
@@ -914,8 +856,7 @@ static int set_expected_rtp_rtcp(struct sk_buff *skb, unsigned int protoff,
 	int direct_rtp = 0, skip_expect = 0, ret = NF_DROP;
 	u_int16_t base_port;
 	__be16 rtp_port, rtcp_port;
-	typeof(nf_nat_sdp_port_hook) nf_nat_sdp_port;
-	typeof(nf_nat_sdp_media_hook) nf_nat_sdp_media;
+	const struct nf_nat_sip_hooks *hooks;
 
 	saddr = NULL;
 	if (sip_direct_media) {
@@ -972,9 +913,9 @@ static int set_expected_rtp_rtcp(struct sk_buff *skb, unsigned int protoff,
 	rtcp_port = htons(base_port + 1);
 
 	if (direct_rtp) {
-		nf_nat_sdp_port = rcu_dereference(nf_nat_sdp_port_hook);
-		if (nf_nat_sdp_port &&
-		    !nf_nat_sdp_port(skb, protoff, dataoff, dptr, datalen,
+		hooks = rcu_dereference(nf_nat_sip_hooks);
+		if (hooks &&
+		    !hooks->sdp_port(skb, protoff, dataoff, dptr, datalen,
 				     mediaoff, medialen, ntohs(rtp_port)))
 			goto err1;
 	}
@@ -996,10 +937,10 @@ static int set_expected_rtp_rtcp(struct sk_buff *skb, unsigned int protoff,
 	nf_ct_expect_init(rtcp_exp, class, nf_ct_l3num(ct), saddr, daddr,
 			  IPPROTO_UDP, NULL, &rtcp_port);
 
-	nf_nat_sdp_media = rcu_dereference(nf_nat_sdp_media_hook);
-	if (nf_nat_sdp_media && ct->status & IPS_NAT_MASK && !direct_rtp)
-		ret = nf_nat_sdp_media(skb, protoff, dataoff, dptr, datalen,
-				       rtp_exp, rtcp_exp,
+	hooks = rcu_dereference(nf_nat_sip_hooks);
+	if (hooks && ct->status & IPS_NAT_MASK && !direct_rtp)
+		ret = hooks->sdp_media(skb, protoff, dataoff, dptr,
+				       datalen, rtp_exp, rtcp_exp,
 				       mediaoff, medialen, daddr);
 	else {
 		if (nf_ct_expect_related(rtp_exp) == 0) {
@@ -1053,13 +994,12 @@ static int process_sdp(struct sk_buff *skb, unsigned int protoff,
 	unsigned int caddr_len, maddr_len;
 	unsigned int i;
 	union nf_inet_addr caddr, maddr, rtp_addr;
+	const struct nf_nat_sip_hooks *hooks;
 	unsigned int port;
 	const struct sdp_media_type *t;
 	int ret = NF_ACCEPT;
-	typeof(nf_nat_sdp_addr_hook) nf_nat_sdp_addr;
-	typeof(nf_nat_sdp_session_hook) nf_nat_sdp_session;
 
-	nf_nat_sdp_addr = rcu_dereference(nf_nat_sdp_addr_hook);
+	hooks = rcu_dereference(nf_nat_sip_hooks);
 
 	/* Find beginning of session description */
 	if (ct_sip_get_sdp_header(ct, *dptr, 0, *datalen,
@@ -1127,10 +1067,11 @@ static int process_sdp(struct sk_buff *skb, unsigned int protoff,
 		}
 
 		/* Update media connection address if present */
-		if (maddr_len && nf_nat_sdp_addr && ct->status & IPS_NAT_MASK) {
-			ret = nf_nat_sdp_addr(skb, protoff, dataoff,
+		if (maddr_len && hooks && ct->status & IPS_NAT_MASK) {
+			ret = hooks->sdp_addr(skb, protoff, dataoff,
 					      dptr, datalen, mediaoff,
-					      SDP_HDR_CONNECTION, SDP_HDR_MEDIA,
+					      SDP_HDR_CONNECTION,
+					      SDP_HDR_MEDIA,
 					      &rtp_addr);
 			if (ret != NF_ACCEPT) {
 				nf_ct_helper_log(skb, ct, "cannot mangle SDP");
@@ -1141,10 +1082,11 @@ static int process_sdp(struct sk_buff *skb, unsigned int protoff,
 	}
 
 	/* Update session connection and owner addresses */
-	nf_nat_sdp_session = rcu_dereference(nf_nat_sdp_session_hook);
-	if (nf_nat_sdp_session && ct->status & IPS_NAT_MASK)
-		ret = nf_nat_sdp_session(skb, protoff, dataoff,
-					 dptr, datalen, sdpoff, &rtp_addr);
+	hooks = rcu_dereference(nf_nat_sip_hooks);
+	if (hooks && ct->status & IPS_NAT_MASK)
+		ret = hooks->sdp_session(skb, protoff, dataoff,
+					 dptr, datalen, sdpoff,
+					 &rtp_addr);
 
 	return ret;
 }
@@ -1244,11 +1186,11 @@ static int process_register_request(struct sk_buff *skb, unsigned int protoff,
 	unsigned int matchoff, matchlen;
 	struct nf_conntrack_expect *exp;
 	union nf_inet_addr *saddr, daddr;
+	const struct nf_nat_sip_hooks *hooks;
 	__be16 port;
 	u8 proto;
 	unsigned int expires = 0;
 	int ret;
-	typeof(nf_nat_sip_expect_hook) nf_nat_sip_expect;
 
 	/* Expected connections can not register again. */
 	if (ct->status & IPS_EXPECTED)
@@ -1311,10 +1253,10 @@ static int process_register_request(struct sk_buff *skb, unsigned int protoff,
 	exp->helper = nfct_help(ct)->helper;
 	exp->flags = NF_CT_EXPECT_PERMANENT | NF_CT_EXPECT_INACTIVE;
 
-	nf_nat_sip_expect = rcu_dereference(nf_nat_sip_expect_hook);
-	if (nf_nat_sip_expect && ct->status & IPS_NAT_MASK)
-		ret = nf_nat_sip_expect(skb, protoff, dataoff, dptr, datalen,
-					exp, matchoff, matchlen);
+	hooks = rcu_dereference(nf_nat_sip_hooks);
+	if (hooks && ct->status & IPS_NAT_MASK)
+		ret = hooks->expect(skb, protoff, dataoff, dptr, datalen,
+				    exp, matchoff, matchlen);
 	else {
 		if (nf_ct_expect_related(exp) != 0) {
 			nf_ct_helper_log(skb, ct, "cannot add expectation");
@@ -1517,7 +1459,7 @@ static int process_sip_msg(struct sk_buff *skb, struct nf_conn *ct,
 			   unsigned int protoff, unsigned int dataoff,
 			   const char **dptr, unsigned int *datalen)
 {
-	typeof(nf_nat_sip_hook) nf_nat_sip;
+	const struct nf_nat_sip_hooks *hooks;
 	int ret;
 
 	if (strnicmp(*dptr, "SIP/2.0 ", strlen("SIP/2.0 ")) != 0)
@@ -1526,9 +1468,9 @@ static int process_sip_msg(struct sk_buff *skb, struct nf_conn *ct,
 		ret = process_sip_response(skb, protoff, dataoff, dptr, datalen);
 
 	if (ret == NF_ACCEPT && ct->status & IPS_NAT_MASK) {
-		nf_nat_sip = rcu_dereference(nf_nat_sip_hook);
-		if (nf_nat_sip && !nf_nat_sip(skb, protoff, dataoff,
-					      dptr, datalen)) {
+		hooks = rcu_dereference(nf_nat_sip_hooks);
+		if (hooks && !hooks->msg(skb, protoff, dataoff,
+					 dptr, datalen)) {
 			nf_ct_helper_log(skb, ct, "cannot NAT SIP message");
 			ret = NF_DROP;
 		}
@@ -1548,7 +1490,6 @@ static int sip_help_tcp(struct sk_buff *skb, unsigned int protoff,
 	s16 diff, tdiff = 0;
 	int ret = NF_ACCEPT;
 	bool term;
-	typeof(nf_nat_sip_seq_adjust_hook) nf_nat_sip_seq_adjust;
 
 	if (ctinfo != IP_CT_ESTABLISHED &&
 	    ctinfo != IP_CT_ESTABLISHED_REPLY)
@@ -1612,9 +1553,11 @@ static int sip_help_tcp(struct sk_buff *skb, unsigned int protoff,
 	}
 
 	if (ret == NF_ACCEPT && ct->status & IPS_NAT_MASK) {
-		nf_nat_sip_seq_adjust = rcu_dereference(nf_nat_sip_seq_adjust_hook);
-		if (nf_nat_sip_seq_adjust)
-			nf_nat_sip_seq_adjust(skb, protoff, tdiff);
+		const struct nf_nat_sip_hooks *hooks;
+
+		hooks = rcu_dereference(nf_nat_sip_hooks);
+		if (hooks)
+			hooks->seq_adjust(skb, protoff, tdiff);
 	}
 
 	return ret;
diff --git a/net/netfilter/nf_nat_sip.c b/net/netfilter/nf_nat_sip.c
index f9790405b7ff..b4d691db955e 100644
--- a/net/netfilter/nf_nat_sip.c
+++ b/net/netfilter/nf_nat_sip.c
@@ -625,33 +625,26 @@ static struct nf_ct_helper_expectfn sip_nat = {
 
 static void __exit nf_nat_sip_fini(void)
 {
-	RCU_INIT_POINTER(nf_nat_sip_hook, NULL);
-	RCU_INIT_POINTER(nf_nat_sip_seq_adjust_hook, NULL);
-	RCU_INIT_POINTER(nf_nat_sip_expect_hook, NULL);
-	RCU_INIT_POINTER(nf_nat_sdp_addr_hook, NULL);
-	RCU_INIT_POINTER(nf_nat_sdp_port_hook, NULL);
-	RCU_INIT_POINTER(nf_nat_sdp_session_hook, NULL);
-	RCU_INIT_POINTER(nf_nat_sdp_media_hook, NULL);
+	RCU_INIT_POINTER(nf_nat_sip_hooks, NULL);
+
 	nf_ct_helper_expectfn_unregister(&sip_nat);
 	synchronize_rcu();
 }
 
+static const struct nf_nat_sip_hooks sip_hooks = {
+	.msg		= nf_nat_sip,
+	.seq_adjust	= nf_nat_sip_seq_adjust,
+	.expect		= nf_nat_sip_expect,
+	.sdp_addr	= nf_nat_sdp_addr,
+	.sdp_port	= nf_nat_sdp_port,
+	.sdp_session	= nf_nat_sdp_session,
+	.sdp_media	= nf_nat_sdp_media,
+};
+
 static int __init nf_nat_sip_init(void)
 {
-	BUG_ON(nf_nat_sip_hook != NULL);
-	BUG_ON(nf_nat_sip_seq_adjust_hook != NULL);
-	BUG_ON(nf_nat_sip_expect_hook != NULL);
-	BUG_ON(nf_nat_sdp_addr_hook != NULL);
-	BUG_ON(nf_nat_sdp_port_hook != NULL);
-	BUG_ON(nf_nat_sdp_session_hook != NULL);
-	BUG_ON(nf_nat_sdp_media_hook != NULL);
-	RCU_INIT_POINTER(nf_nat_sip_hook, nf_nat_sip);
-	RCU_INIT_POINTER(nf_nat_sip_seq_adjust_hook, nf_nat_sip_seq_adjust);
-	RCU_INIT_POINTER(nf_nat_sip_expect_hook, nf_nat_sip_expect);
-	RCU_INIT_POINTER(nf_nat_sdp_addr_hook, nf_nat_sdp_addr);
-	RCU_INIT_POINTER(nf_nat_sdp_port_hook, nf_nat_sdp_port);
-	RCU_INIT_POINTER(nf_nat_sdp_session_hook, nf_nat_sdp_session);
-	RCU_INIT_POINTER(nf_nat_sdp_media_hook, nf_nat_sdp_media);
+	BUG_ON(nf_nat_sip_hooks != NULL);
+	RCU_INIT_POINTER(nf_nat_sip_hooks, &sip_hooks);
 	nf_ct_helper_expectfn_register(&sip_nat);
 	return 0;
 }
-- 
cgit 


From 4fa8dbc18e8a57ea21c63103abdea042ab923202 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 30 Sep 2013 22:17:37 -0300
Subject: ASoC: fsl: imx-sgtl5000: Add .remove back

Commit e8f00c1b01 (Merge remote-tracking branch 'asoc/fix/fsl' into asoc-devm)
fixed a conflict, but missed to add the .remove function back,which causes the
following build warning:

sound/soc/fsl/imx-sgtl5000.c:185:12: warning: 'imx_sgtl5000_remove' defined but not used [-Wunused-function]

Fix the warning by adding the .remove function back.

Reported-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/imx-sgtl5000.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/fsl/imx-sgtl5000.c b/sound/soc/fsl/imx-sgtl5000.c
index 6f4bdc89ae3c..ed6ba1eba557 100644
--- a/sound/soc/fsl/imx-sgtl5000.c
+++ b/sound/soc/fsl/imx-sgtl5000.c
@@ -204,6 +204,7 @@ static struct platform_driver imx_sgtl5000_driver = {
 		.of_match_table = imx_sgtl5000_dt_ids,
 	},
 	.probe = imx_sgtl5000_probe,
+	.remove = imx_sgtl5000_remove,
 };
 module_platform_driver(imx_sgtl5000_driver);
 
-- 
cgit 


From e2c9917bfa4e104ba53819b37498eb45fbcd4e41 Mon Sep 17 00:00:00 2001
From: Vladimir Murzin <murzin.v@gmail.com>
Date: Sun, 29 Sep 2013 16:00:13 +0200
Subject: ASoC: kirkwood: fix compilation warning in kirkwood_dma_open

writel() supposes the first argument of type unsigned int. This fix the
warning:

sound/soc/kirkwood/kirkwood-dma.c: In function 'kirkwood_dma_open':
sound/soc/kirkwood/kirkwood-dma.c:164:3: warning: large integer implicitly
truncated to unsigned type [-Woverflow]

Signed-off-by: Vladimir Murzin <murzin.v@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/kirkwood/kirkwood-dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/kirkwood/kirkwood-dma.c b/sound/soc/kirkwood/kirkwood-dma.c
index 0c85c4e1a1ae..55d0d9d3a9fd 100644
--- a/sound/soc/kirkwood/kirkwood-dma.c
+++ b/sound/soc/kirkwood/kirkwood-dma.c
@@ -159,7 +159,7 @@ static int kirkwood_dma_open(struct snd_pcm_substream *substream)
 		 * Enable Error interrupts. We're only ack'ing them but
 		 * it's useful for diagnostics
 		 */
-		writel((unsigned long)-1, priv->io + KIRKWOOD_ERR_MASK);
+		writel((unsigned int)-1, priv->io + KIRKWOOD_ERR_MASK);
 	}
 
 	dram = mv_mbus_dram_info();
-- 
cgit 


From 7d65f4a6553203da6a22097821d151fbbe7e4956 Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Thu, 5 Sep 2013 15:49:45 +0200
Subject: irq: Consolidate do_softirq() arch overriden implementations

All arch overriden implementations of do_softirq() share the following
common code: disable irqs (to avoid races with the pending check),
check if there are softirqs pending, then execute __do_softirq() on
a specific stack.

Consolidate the common parts such that archs only worry about the
stack switch.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@au1.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Mackerras <paulus@au1.ibm.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
---
 arch/metag/kernel/irq.c    | 52 ++++++++++++++++--------------------------
 arch/parisc/kernel/irq.c   | 17 ++------------
 arch/powerpc/kernel/irq.c  | 17 +-------------
 arch/s390/kernel/irq.c     | 52 +++++++++++++++++-------------------------
 arch/sh/kernel/irq.c       | 57 +++++++++++++++++-----------------------------
 arch/sparc/kernel/irq_64.c | 31 ++++++++-----------------
 arch/x86/kernel/entry_64.S |  4 ++--
 arch/x86/kernel/irq_32.c   | 30 +++++++-----------------
 arch/x86/kernel/irq_64.c   | 21 -----------------
 include/linux/interrupt.h  | 11 +++++++++
 kernel/softirq.c           |  8 +++----
 11 files changed, 98 insertions(+), 202 deletions(-)

diff --git a/arch/metag/kernel/irq.c b/arch/metag/kernel/irq.c
index 2a2c9d55187e..3b4b7f6c0950 100644
--- a/arch/metag/kernel/irq.c
+++ b/arch/metag/kernel/irq.c
@@ -159,44 +159,30 @@ void irq_ctx_exit(int cpu)
 
 extern asmlinkage void __do_softirq(void);
 
-asmlinkage void do_softirq(void)
+void do_softirq_own_stack(void)
 {
-	unsigned long flags;
 	struct thread_info *curctx;
 	union irq_ctx *irqctx;
 	u32 *isp;
 
-	if (in_interrupt())
-		return;
-
-	local_irq_save(flags);
-
-	if (local_softirq_pending()) {
-		curctx = current_thread_info();
-		irqctx = softirq_ctx[smp_processor_id()];
-		irqctx->tinfo.task = curctx->task;
-
-		/* build the stack frame on the softirq stack */
-		isp = (u32 *) ((char *)irqctx + sizeof(struct thread_info));
-
-		asm volatile (
-			"MOV   D0.5,%0\n"
-			"SWAP  A0StP,D0.5\n"
-			"CALLR D1RtP,___do_softirq\n"
-			"MOV   A0StP,D0.5\n"
-			:
-			: "r" (isp)
-			: "memory", "cc", "D1Ar1", "D0Ar2", "D1Ar3", "D0Ar4",
-			  "D1Ar5", "D0Ar6", "D0Re0", "D1Re0", "D0.4", "D1RtP",
-			  "D0.5"
-			);
-		/*
-		 * Shouldn't happen, we returned above if in_interrupt():
-		 */
-		WARN_ON_ONCE(softirq_count());
-	}
-
-	local_irq_restore(flags);
+	curctx = current_thread_info();
+	irqctx = softirq_ctx[smp_processor_id()];
+	irqctx->tinfo.task = curctx->task;
+
+	/* build the stack frame on the softirq stack */
+	isp = (u32 *) ((char *)irqctx + sizeof(struct thread_info));
+
+	asm volatile (
+		"MOV   D0.5,%0\n"
+		"SWAP  A0StP,D0.5\n"
+		"CALLR D1RtP,___do_softirq\n"
+		"MOV   A0StP,D0.5\n"
+		:
+		: "r" (isp)
+		: "memory", "cc", "D1Ar1", "D0Ar2", "D1Ar3", "D0Ar4",
+		  "D1Ar5", "D0Ar6", "D0Re0", "D1Re0", "D0.4", "D1RtP",
+		  "D0.5"
+		);
 }
 #endif
 
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 2e6443b1e922..ef5927685299 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -499,22 +499,9 @@ static void execute_on_irq_stack(void *func, unsigned long param1)
 	*irq_stack_in_use = 1;
 }
 
-asmlinkage void do_softirq(void)
+void do_softirq_own_stack(void)
 {
-	__u32 pending;
-	unsigned long flags;
-
-	if (in_interrupt())
-		return;
-
-	local_irq_save(flags);
-
-	pending = local_softirq_pending();
-
-	if (pending)
-		execute_on_irq_stack(__do_softirq, 0);
-
-	local_irq_restore(flags);
+	execute_on_irq_stack(__do_softirq, 0);
 }
 #endif /* CONFIG_IRQSTACKS */
 
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 57d286a78f86..5c4adfc6a6d0 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -593,7 +593,7 @@ void irq_ctx_init(void)
 	}
 }
 
-static inline void do_softirq_onstack(void)
+void do_softirq_own_stack(void)
 {
 	struct thread_info *curtp, *irqtp;
 
@@ -611,21 +611,6 @@ static inline void do_softirq_onstack(void)
 		set_bits(irqtp->flags, &curtp->flags);
 }
 
-void do_softirq(void)
-{
-	unsigned long flags;
-
-	if (in_interrupt())
-		return;
-
-	local_irq_save(flags);
-
-	if (local_softirq_pending())
-		do_softirq_onstack();
-
-	local_irq_restore(flags);
-}
-
 irq_hw_number_t virq_to_hw(unsigned int virq)
 {
 	struct irq_data *irq_data = irq_get_irq_data(virq);
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index 8ac2097f13d4..bb27a262c44a 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -157,39 +157,29 @@ int arch_show_interrupts(struct seq_file *p, int prec)
 /*
  * Switch to the asynchronous interrupt stack for softirq execution.
  */
-asmlinkage void do_softirq(void)
+void do_softirq_own_stack(void)
 {
-	unsigned long flags, old, new;
-
-	if (in_interrupt())
-		return;
-
-	local_irq_save(flags);
-
-	if (local_softirq_pending()) {
-		/* Get current stack pointer. */
-		asm volatile("la %0,0(15)" : "=a" (old));
-		/* Check against async. stack address range. */
-		new = S390_lowcore.async_stack;
-		if (((new - old) >> (PAGE_SHIFT + THREAD_ORDER)) != 0) {
-			/* Need to switch to the async. stack. */
-			new -= STACK_FRAME_OVERHEAD;
-			((struct stack_frame *) new)->back_chain = old;
-
-			asm volatile("   la    15,0(%0)\n"
-				     "   basr  14,%2\n"
-				     "   la    15,0(%1)\n"
-				     : : "a" (new), "a" (old),
-				         "a" (__do_softirq)
-				     : "0", "1", "2", "3", "4", "5", "14",
-				       "cc", "memory" );
-		} else {
-			/* We are already on the async stack. */
-			__do_softirq();
-		}
+	unsigned long old, new;
+
+	/* Get current stack pointer. */
+	asm volatile("la %0,0(15)" : "=a" (old));
+	/* Check against async. stack address range. */
+	new = S390_lowcore.async_stack;
+	if (((new - old) >> (PAGE_SHIFT + THREAD_ORDER)) != 0) {
+		/* Need to switch to the async. stack. */
+		new -= STACK_FRAME_OVERHEAD;
+		((struct stack_frame *) new)->back_chain = old;
+		asm volatile("   la    15,0(%0)\n"
+			     "   basr  14,%2\n"
+			     "   la    15,0(%1)\n"
+			     : : "a" (new), "a" (old),
+			         "a" (__do_softirq)
+			     : "0", "1", "2", "3", "4", "5", "14",
+			       "cc", "memory" );
+	} else {
+		/* We are already on the async stack. */
+		__do_softirq();
 	}
-
-	local_irq_restore(flags);
 }
 
 /*
diff --git a/arch/sh/kernel/irq.c b/arch/sh/kernel/irq.c
index 063af10ff3c1..0833736afa32 100644
--- a/arch/sh/kernel/irq.c
+++ b/arch/sh/kernel/irq.c
@@ -149,47 +149,32 @@ void irq_ctx_exit(int cpu)
 	hardirq_ctx[cpu] = NULL;
 }
 
-asmlinkage void do_softirq(void)
+void do_softirq_own_stack(void)
 {
-	unsigned long flags;
 	struct thread_info *curctx;
 	union irq_ctx *irqctx;
 	u32 *isp;
 
-	if (in_interrupt())
-		return;
-
-	local_irq_save(flags);
-
-	if (local_softirq_pending()) {
-		curctx = current_thread_info();
-		irqctx = softirq_ctx[smp_processor_id()];
-		irqctx->tinfo.task = curctx->task;
-		irqctx->tinfo.previous_sp = current_stack_pointer;
-
-		/* build the stack frame on the softirq stack */
-		isp = (u32 *)((char *)irqctx + sizeof(*irqctx));
-
-		__asm__ __volatile__ (
-			"mov	r15, r9		\n"
-			"jsr	@%0		\n"
-			/* switch to the softirq stack */
-			" mov	%1, r15		\n"
-			/* restore the thread stack */
-			"mov	r9, r15		\n"
-			: /* no outputs */
-			: "r" (__do_softirq), "r" (isp)
-			: "memory", "r0", "r1", "r2", "r3", "r4",
-			  "r5", "r6", "r7", "r8", "r9", "r15", "t", "pr"
-		);
-
-		/*
-		 * Shouldn't happen, we returned above if in_interrupt():
-		 */
-		WARN_ON_ONCE(softirq_count());
-	}
-
-	local_irq_restore(flags);
+	curctx = current_thread_info();
+	irqctx = softirq_ctx[smp_processor_id()];
+	irqctx->tinfo.task = curctx->task;
+	irqctx->tinfo.previous_sp = current_stack_pointer;
+
+	/* build the stack frame on the softirq stack */
+	isp = (u32 *)((char *)irqctx + sizeof(*irqctx));
+
+	__asm__ __volatile__ (
+		"mov	r15, r9		\n"
+		"jsr	@%0		\n"
+		/* switch to the softirq stack */
+		" mov	%1, r15		\n"
+		/* restore the thread stack */
+		"mov	r9, r15		\n"
+		: /* no outputs */
+		: "r" (__do_softirq), "r" (isp)
+		: "memory", "r0", "r1", "r2", "r3", "r4",
+		  "r5", "r6", "r7", "r8", "r9", "r15", "t", "pr"
+	);
 }
 #else
 static inline void handle_one_irq(unsigned int irq)
diff --git a/arch/sparc/kernel/irq_64.c b/arch/sparc/kernel/irq_64.c
index d4840cec2c55..666193f4e8bb 100644
--- a/arch/sparc/kernel/irq_64.c
+++ b/arch/sparc/kernel/irq_64.c
@@ -698,30 +698,19 @@ void __irq_entry handler_irq(int pil, struct pt_regs *regs)
 	set_irq_regs(old_regs);
 }
 
-void do_softirq(void)
+void do_softirq_own_stack(void)
 {
-	unsigned long flags;
-
-	if (in_interrupt())
-		return;
-
-	local_irq_save(flags);
+	void *orig_sp, *sp = softirq_stack[smp_processor_id()];
 
-	if (local_softirq_pending()) {
-		void *orig_sp, *sp = softirq_stack[smp_processor_id()];
-
-		sp += THREAD_SIZE - 192 - STACK_BIAS;
-
-		__asm__ __volatile__("mov %%sp, %0\n\t"
-				     "mov %1, %%sp"
-				     : "=&r" (orig_sp)
-				     : "r" (sp));
-		__do_softirq();
-		__asm__ __volatile__("mov %0, %%sp"
-				     : : "r" (orig_sp));
-	}
+	sp += THREAD_SIZE - 192 - STACK_BIAS;
 
-	local_irq_restore(flags);
+	__asm__ __volatile__("mov %%sp, %0\n\t"
+			     "mov %1, %%sp"
+			     : "=&r" (orig_sp)
+			     : "r" (sp));
+	__do_softirq();
+	__asm__ __volatile__("mov %0, %%sp"
+			     : : "r" (orig_sp));
 }
 
 #ifdef CONFIG_HOTPLUG_CPU
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index b077f4cc225a..083da7c2f40d 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -1342,7 +1342,7 @@ bad_gs:
 	.previous
 
 /* Call softirq on interrupt stack. Interrupts are off. */
-ENTRY(call_softirq)
+ENTRY(do_softirq_own_stack)
 	CFI_STARTPROC
 	pushq_cfi %rbp
 	CFI_REL_OFFSET rbp,0
@@ -1359,7 +1359,7 @@ ENTRY(call_softirq)
 	decl PER_CPU_VAR(irq_count)
 	ret
 	CFI_ENDPROC
-END(call_softirq)
+END(do_softirq_own_stack)
 
 #ifdef CONFIG_XEN
 zeroentry xen_hypervisor_callback xen_do_hypervisor_callback
diff --git a/arch/x86/kernel/irq_32.c b/arch/x86/kernel/irq_32.c
index 4186755f1d7c..8a5bb01dbc0e 100644
--- a/arch/x86/kernel/irq_32.c
+++ b/arch/x86/kernel/irq_32.c
@@ -149,35 +149,21 @@ void irq_ctx_init(int cpu)
 	       cpu, per_cpu(hardirq_ctx, cpu),  per_cpu(softirq_ctx, cpu));
 }
 
-asmlinkage void do_softirq(void)
+void do_softirq_own_stack(void)
 {
-	unsigned long flags;
 	struct thread_info *curctx;
 	union irq_ctx *irqctx;
 	u32 *isp;
 
-	if (in_interrupt())
-		return;
-
-	local_irq_save(flags);
-
-	if (local_softirq_pending()) {
-		curctx = current_thread_info();
-		irqctx = __this_cpu_read(softirq_ctx);
-		irqctx->tinfo.task = curctx->task;
-		irqctx->tinfo.previous_esp = current_stack_pointer;
-
-		/* build the stack frame on the softirq stack */
-		isp = (u32 *) ((char *)irqctx + sizeof(*irqctx));
+	curctx = current_thread_info();
+	irqctx = __this_cpu_read(softirq_ctx);
+	irqctx->tinfo.task = curctx->task;
+	irqctx->tinfo.previous_esp = current_stack_pointer;
 
-		call_on_stack(__do_softirq, isp);
-		/*
-		 * Shouldn't happen, we returned above if in_interrupt():
-		 */
-		WARN_ON_ONCE(softirq_count());
-	}
+	/* build the stack frame on the softirq stack */
+	isp = (u32 *) ((char *)irqctx + sizeof(*irqctx));
 
-	local_irq_restore(flags);
+	call_on_stack(__do_softirq, isp);
 }
 
 bool handle_irq(unsigned irq, struct pt_regs *regs)
diff --git a/arch/x86/kernel/irq_64.c b/arch/x86/kernel/irq_64.c
index d04d3ecded62..4d1c746892eb 100644
--- a/arch/x86/kernel/irq_64.c
+++ b/arch/x86/kernel/irq_64.c
@@ -87,24 +87,3 @@ bool handle_irq(unsigned irq, struct pt_regs *regs)
 	generic_handle_irq_desc(irq, desc);
 	return true;
 }
-
-
-extern void call_softirq(void);
-
-asmlinkage void do_softirq(void)
-{
-	__u32 pending;
-	unsigned long flags;
-
-	if (in_interrupt())
-		return;
-
-	local_irq_save(flags);
-	pending = local_softirq_pending();
-	/* Switch to interrupt stack */
-	if (pending) {
-		call_softirq();
-		WARN_ON_ONCE(softirq_count());
-	}
-	local_irq_restore(flags);
-}
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index 5e865b554940..c9e831dc80bc 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -19,6 +19,7 @@
 
 #include <linux/atomic.h>
 #include <asm/ptrace.h>
+#include <asm/irq.h>
 
 /*
  * These correspond to the IORESOURCE_IRQ_* defines in
@@ -374,6 +375,16 @@ struct softirq_action
 
 asmlinkage void do_softirq(void);
 asmlinkage void __do_softirq(void);
+
+#ifdef __ARCH_HAS_DO_SOFTIRQ
+void do_softirq_own_stack(void);
+#else
+static inline void do_softirq_own_stack(void)
+{
+	__do_softirq();
+}
+#endif
+
 extern void open_softirq(int nr, void (*action)(struct softirq_action *));
 extern void softirq_init(void);
 extern void __raise_softirq_irqoff(unsigned int nr);
diff --git a/kernel/softirq.c b/kernel/softirq.c
index d7d498d8cc4f..26ee72725d29 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -29,7 +29,6 @@
 #define CREATE_TRACE_POINTS
 #include <trace/events/irq.h>
 
-#include <asm/irq.h>
 /*
    - No shared variables, all the data are CPU local.
    - If a softirq needs serialization, let it serialize itself
@@ -283,7 +282,7 @@ restart:
 	tsk_restore_flags(current, old_flags, PF_MEMALLOC);
 }
 
-#ifndef __ARCH_HAS_DO_SOFTIRQ
+
 
 asmlinkage void do_softirq(void)
 {
@@ -298,13 +297,12 @@ asmlinkage void do_softirq(void)
 	pending = local_softirq_pending();
 
 	if (pending)
-		__do_softirq();
+		do_softirq_own_stack();
 
+	WARN_ON_ONCE(softirq_count());
 	local_irq_restore(flags);
 }
 
-#endif
-
 /*
  * Enter an interrupt context.
  */
-- 
cgit 


From be6e1016440860fc4ec098b2d0aed3d0397b5d6e Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Tue, 24 Sep 2013 16:39:41 +0200
Subject: irq: Optimize call to softirq on hardirq exit

Before processing softirqs on hardirq exit, we already
do the check for pending softirqs while hardirqs are
guaranteed to be disabled.

So we can take a shortcut and safely jump to the arch
specific implementation directly.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@au1.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Mackerras <paulus@au1.ibm.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
---
 kernel/softirq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/softirq.c b/kernel/softirq.c
index 26ee72725d29..17c5cd2e3dae 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -335,7 +335,7 @@ static inline void invoke_softirq(void)
 		 * in its own stack to prevent from any overrun on top
 		 * of a potentially deep task stack.
 		 */
-		do_softirq();
+		do_softirq_own_stack();
 	} else {
 		wakeup_softirqd();
 	}
-- 
cgit 


From 5d60d3e7c08a46643e902e39d9743cf394382151 Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Tue, 24 Sep 2013 04:11:35 +0200
Subject: irq: Improve a bit softirq debugging

do_softirq() has a debug check that verifies that it is not nesting
on softirqs processing, nor miscounting the softirq part of the preempt
count.

But making sure that softirqs processing don't nest is actually a more
generic concern that applies to any caller of __do_softirq().

Do take it one step further and generalize that debug check to
any softirq processing.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@au1.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Mackerras <paulus@au1.ibm.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
---
 kernel/softirq.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/softirq.c b/kernel/softirq.c
index 17c5cd2e3dae..9f8092b82a94 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -133,7 +133,6 @@ EXPORT_SYMBOL(local_bh_disable);
 
 static void __local_bh_enable(unsigned int cnt)
 {
-	WARN_ON_ONCE(in_irq());
 	WARN_ON_ONCE(!irqs_disabled());
 
 	if (softirq_count() == cnt)
@@ -148,6 +147,7 @@ static void __local_bh_enable(unsigned int cnt)
  */
 void _local_bh_enable(void)
 {
+	WARN_ON_ONCE(in_irq());
 	__local_bh_enable(SOFTIRQ_DISABLE_OFFSET);
 }
 
@@ -279,6 +279,7 @@ restart:
 
 	account_irq_exit_time(current);
 	__local_bh_enable(SOFTIRQ_OFFSET);
+	WARN_ON_ONCE(in_interrupt());
 	tsk_restore_flags(current, old_flags, PF_MEMALLOC);
 }
 
@@ -299,7 +300,6 @@ asmlinkage void do_softirq(void)
 	if (pending)
 		do_softirq_own_stack();
 
-	WARN_ON_ONCE(softirq_count());
 	local_irq_restore(flags);
 }
 
-- 
cgit 


From 0bed698a334766ed07bacd6cb33f0228003a7f61 Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Thu, 5 Sep 2013 16:14:00 +0200
Subject: irq: Justify the various softirq stack choices

For clarity, comment the various stack choices for softirqs
processing, whether we execute them from ksoftirqd or
local_irq_enable() calls.

Their use on irq_exit() is already commented.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@au1.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Mackerras <paulus@au1.ibm.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
---
 kernel/softirq.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/kernel/softirq.c b/kernel/softirq.c
index 9f8092b82a94..2b4328ea769f 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -170,8 +170,13 @@ static inline void _local_bh_enable_ip(unsigned long ip)
  	 */
 	sub_preempt_count(SOFTIRQ_DISABLE_OFFSET - 1);
 
-	if (unlikely(!in_interrupt() && local_softirq_pending()))
+	if (unlikely(!in_interrupt() && local_softirq_pending())) {
+		/*
+		 * Run softirq if any pending. And do it in its own stack
+		 * as we may be calling this deep in a task call stack already.
+		 */
 		do_softirq();
+	}
 
 	dec_preempt_count();
 #ifdef CONFIG_TRACE_IRQFLAGS
@@ -769,6 +774,10 @@ static void run_ksoftirqd(unsigned int cpu)
 {
 	local_irq_disable();
 	if (local_softirq_pending()) {
+		/*
+		 * We can safely run softirq on inline stack, as we are not deep
+		 * in the task stack here.
+		 */
 		__do_softirq();
 		rcu_note_context_switch(cpu);
 		local_irq_enable();
-- 
cgit 


From cc1f027454929924471bea2f362431072e3c71be Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Tue, 24 Sep 2013 17:17:47 +0200
Subject: irq: Optimize softirq stack selection in irq exit

If irq_exit() is called on the arch's specified irq stack,
it should be safe to run softirqs inline under that same
irq stack as it is near empty by the time we call irq_exit().

For example if we use the same stack for both hard and soft irqs here,
the worst case scenario is:
hardirq -> softirq -> hardirq. But then the softirq supersedes the
first hardirq as the stack user since irq_exit() is called in
a mostly empty stack. So the stack merge in this case looks acceptable.

Stack overrun still have a chance to happen if hardirqs have more
opportunities to nest, but then it's another problem to solve.

So lets adapt the irq exit's softirq stack on top of a new Kconfig symbol
that can be defined when irq_exit() runs on the irq stack. That way
we can spare some stack switch on irq processing and all the cache
issues that come along.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@au1.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Mackerras <paulus@au1.ibm.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
---
 arch/Kconfig     | 10 ++++++++++
 kernel/softirq.c | 14 ++++++++++----
 2 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/arch/Kconfig b/arch/Kconfig
index af2cc6eabcc7..ad95133f8fae 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -390,6 +390,16 @@ config HAVE_UNDERSCORE_SYMBOL_PREFIX
 	  Some architectures generate an _ in front of C symbols; things like
 	  module loading and assembly files need to know about this.
 
+config HAVE_IRQ_EXIT_ON_IRQ_STACK
+	bool
+	help
+	  Architecture doesn't only execute the irq handler on the irq stack
+	  but also irq_exit(). This way we can process softirqs on this irq
+	  stack instead of switching to a new one when we call __do_softirq()
+	  in the end of an hardirq.
+	  This spares a stack switch and improves cache usage on softirq
+	  processing.
+
 #
 # ABI hall of shame
 #
diff --git a/kernel/softirq.c b/kernel/softirq.c
index 2b4328ea769f..dacd0ab51df4 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -332,15 +332,21 @@ void irq_enter(void)
 static inline void invoke_softirq(void)
 {
 	if (!force_irqthreads) {
+#ifdef CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK
 		/*
 		 * We can safely execute softirq on the current stack if
 		 * it is the irq stack, because it should be near empty
-		 * at this stage. But we have no way to know if the arch
-		 * calls irq_exit() on the irq stack. So call softirq
-		 * in its own stack to prevent from any overrun on top
-		 * of a potentially deep task stack.
+		 * at this stage.
+		 */
+		__do_softirq();
+#else
+		/*
+		 * Otherwise, irq_exit() is called on the task stack that can
+		 * be potentially deep already. So call softirq in its own stack
+		 * to prevent from any overrun.
 		 */
 		do_softirq_own_stack();
+#endif
 	} else {
 		wakeup_softirqd();
 	}
-- 
cgit 


From a2cd11f7d58a3a5390ee4cbcd8cff634a4d59173 Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Tue, 24 Sep 2013 17:18:36 +0200
Subject: x86: Tell about irq stack coverage

x86-64 runs irq_exit() under the irq stack. So it can afford
to run softirqs in hardirq exit without the need to switch
the stacks. The hardirq stack is good enough for that.

Now x86-64 runs softirqs in the hardirq stack anyway, so what we
mostly skip is some needless per cpu refcounting updates there.

x86-32 is not concerned because it only runs the irq handler on
the irq stack.

Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@au1.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Mackerras <paulus@au1.ibm.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
---
 arch/x86/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index ee2fb9d37745..99eb1cc30dac 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -123,6 +123,7 @@ config X86
 	select COMPAT_OLD_SIGACTION if IA32_EMULATION
 	select RTC_LIB
 	select HAVE_DEBUG_STACKOVERFLOW
+	select HAVE_IRQ_EXIT_ON_IRQ_STACK if X86_64
 
 config INSTRUCTION_DECODER
 	def_bool y
-- 
cgit 


From 62d26c8200a8382e1c67419ca3aff78d37898cc5 Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Tue, 24 Sep 2013 17:18:36 +0200
Subject: powerpc: Tell about irq stack coverage

Now that powerpc runs irq_exit() under the irq stack,
let the softirq core know about that so that we spare
the needless stack switch on irq exit's softirq processing.

Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@au1.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Mackerras <paulus@au1.ibm.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: James E.J. Bottomley <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
---
 arch/powerpc/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 38f3b7e47ec5..b365d5cbb722 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -138,6 +138,7 @@ config PPC
 	select OLD_SIGSUSPEND
 	select OLD_SIGACTION if PPC32
 	select HAVE_DEBUG_STACKOVERFLOW
+	select HAVE_IRQ_EXIT_ON_IRQ_STACK
 
 config EARLY_PRINTK
 	bool
-- 
cgit 


From ff311bc11a7e2da95e1e17f99b7e4951c7060547 Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Tue, 3 Sep 2013 19:43:18 +0200
Subject: nl80211: allow CAC only if no operation is going on

A CAC should fail if it is triggered while the interface is already
running.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/wireless/nl80211.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index ae617112b8f5..2838206ddad3 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -5591,6 +5591,9 @@ static int nl80211_start_radar_detection(struct sk_buff *skb,
 	if (err)
 		return err;
 
+	if (netif_carrier_ok(dev))
+		return -EBUSY;
+
 	if (wdev->cac_started)
 		return -EBUSY;
 
-- 
cgit 


From 91cb498e6a34b429a032f8cfbb57dde28cd20e0c Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Wed, 4 Sep 2013 20:57:48 +0200
Subject: netfilter: cttimeout: allow to set/get default protocol timeouts

Default timeouts are currently set via proc/sysctl interface, the
typical pattern is a file name like:

/proc/sys/net/netfilter/nf_conntrack_PROTOCOL_timeout_STATE

This results in one entry per default protocol state timeout.
This patch simplifies this by allowing to set default protocol
timeouts via cttimeout netlink interface.

This should allow us to get rid of the existing proc/sysctl code
in the midterm.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/uapi/linux/netfilter/nfnetlink_cttimeout.h |   2 +
 net/netfilter/nfnetlink_cttimeout.c                | 161 ++++++++++++++++++++-
 2 files changed, 155 insertions(+), 8 deletions(-)

diff --git a/include/uapi/linux/netfilter/nfnetlink_cttimeout.h b/include/uapi/linux/netfilter/nfnetlink_cttimeout.h
index a2810a7c5e30..1ab0b97b3a1e 100644
--- a/include/uapi/linux/netfilter/nfnetlink_cttimeout.h
+++ b/include/uapi/linux/netfilter/nfnetlink_cttimeout.h
@@ -6,6 +6,8 @@ enum ctnl_timeout_msg_types {
 	IPCTNL_MSG_TIMEOUT_NEW,
 	IPCTNL_MSG_TIMEOUT_GET,
 	IPCTNL_MSG_TIMEOUT_DELETE,
+	IPCTNL_MSG_TIMEOUT_DEFAULT_SET,
+	IPCTNL_MSG_TIMEOUT_DEFAULT_GET,
 
 	IPCTNL_MSG_TIMEOUT_MAX
 };
diff --git a/net/netfilter/nfnetlink_cttimeout.c b/net/netfilter/nfnetlink_cttimeout.c
index 50580494148d..476accd17145 100644
--- a/net/netfilter/nfnetlink_cttimeout.c
+++ b/net/netfilter/nfnetlink_cttimeout.c
@@ -49,10 +49,8 @@ static const struct nla_policy cttimeout_nla_policy[CTA_TIMEOUT_MAX+1] = {
 };
 
 static int
-ctnl_timeout_parse_policy(struct ctnl_timeout *timeout,
-			  struct nf_conntrack_l4proto *l4proto,
-			  struct net *net,
-			  const struct nlattr *attr)
+ctnl_timeout_parse_policy(void *timeouts, struct nf_conntrack_l4proto *l4proto,
+			  struct net *net, const struct nlattr *attr)
 {
 	int ret = 0;
 
@@ -64,8 +62,7 @@ ctnl_timeout_parse_policy(struct ctnl_timeout *timeout,
 		if (ret < 0)
 			return ret;
 
-		ret = l4proto->ctnl_timeout.nlattr_to_obj(tb, net,
-							  &timeout->data);
+		ret = l4proto->ctnl_timeout.nlattr_to_obj(tb, net, timeouts);
 	}
 	return ret;
 }
@@ -123,7 +120,8 @@ cttimeout_new_timeout(struct sock *ctnl, struct sk_buff *skb,
 				goto err_proto_put;
 			}
 
-			ret = ctnl_timeout_parse_policy(matching, l4proto, net,
+			ret = ctnl_timeout_parse_policy(&matching->data,
+							l4proto, net,
 							cda[CTA_TIMEOUT_DATA]);
 			return ret;
 		}
@@ -138,7 +136,7 @@ cttimeout_new_timeout(struct sock *ctnl, struct sk_buff *skb,
 		goto err_proto_put;
 	}
 
-	ret = ctnl_timeout_parse_policy(timeout, l4proto, net,
+	ret = ctnl_timeout_parse_policy(&timeout->data, l4proto, net,
 					cda[CTA_TIMEOUT_DATA]);
 	if (ret < 0)
 		goto err;
@@ -342,6 +340,147 @@ cttimeout_del_timeout(struct sock *ctnl, struct sk_buff *skb,
 	return ret;
 }
 
+static int
+cttimeout_default_set(struct sock *ctnl, struct sk_buff *skb,
+		      const struct nlmsghdr *nlh,
+		      const struct nlattr * const cda[])
+{
+	__u16 l3num;
+	__u8 l4num;
+	struct nf_conntrack_l4proto *l4proto;
+	struct net *net = sock_net(skb->sk);
+	unsigned int *timeouts;
+	int ret;
+
+	if (!cda[CTA_TIMEOUT_L3PROTO] ||
+	    !cda[CTA_TIMEOUT_L4PROTO] ||
+	    !cda[CTA_TIMEOUT_DATA])
+		return -EINVAL;
+
+	l3num = ntohs(nla_get_be16(cda[CTA_TIMEOUT_L3PROTO]));
+	l4num = nla_get_u8(cda[CTA_TIMEOUT_L4PROTO]);
+	l4proto = nf_ct_l4proto_find_get(l3num, l4num);
+
+	/* This protocol is not supported, skip. */
+	if (l4proto->l4proto != l4num) {
+		ret = -EOPNOTSUPP;
+		goto err;
+	}
+
+	timeouts = l4proto->get_timeouts(net);
+
+	ret = ctnl_timeout_parse_policy(timeouts, l4proto, net,
+					cda[CTA_TIMEOUT_DATA]);
+	if (ret < 0)
+		goto err;
+
+	nf_ct_l4proto_put(l4proto);
+	return 0;
+err:
+	nf_ct_l4proto_put(l4proto);
+	return ret;
+}
+
+static int
+cttimeout_default_fill_info(struct net *net, struct sk_buff *skb, u32 portid,
+			    u32 seq, u32 type, int event,
+			    struct nf_conntrack_l4proto *l4proto)
+{
+	struct nlmsghdr *nlh;
+	struct nfgenmsg *nfmsg;
+	unsigned int flags = portid ? NLM_F_MULTI : 0;
+
+	event |= NFNL_SUBSYS_CTNETLINK_TIMEOUT << 8;
+	nlh = nlmsg_put(skb, portid, seq, event, sizeof(*nfmsg), flags);
+	if (nlh == NULL)
+		goto nlmsg_failure;
+
+	nfmsg = nlmsg_data(nlh);
+	nfmsg->nfgen_family = AF_UNSPEC;
+	nfmsg->version = NFNETLINK_V0;
+	nfmsg->res_id = 0;
+
+	if (nla_put_be16(skb, CTA_TIMEOUT_L3PROTO, htons(l4proto->l3proto)) ||
+	    nla_put_u8(skb, CTA_TIMEOUT_L4PROTO, l4proto->l4proto))
+		goto nla_put_failure;
+
+	if (likely(l4proto->ctnl_timeout.obj_to_nlattr)) {
+		struct nlattr *nest_parms;
+		unsigned int *timeouts = l4proto->get_timeouts(net);
+		int ret;
+
+		nest_parms = nla_nest_start(skb,
+					    CTA_TIMEOUT_DATA | NLA_F_NESTED);
+		if (!nest_parms)
+			goto nla_put_failure;
+
+		ret = l4proto->ctnl_timeout.obj_to_nlattr(skb, timeouts);
+		if (ret < 0)
+			goto nla_put_failure;
+
+		nla_nest_end(skb, nest_parms);
+	}
+
+	nlmsg_end(skb, nlh);
+	return skb->len;
+
+nlmsg_failure:
+nla_put_failure:
+	nlmsg_cancel(skb, nlh);
+	return -1;
+}
+
+static int cttimeout_default_get(struct sock *ctnl, struct sk_buff *skb,
+				 const struct nlmsghdr *nlh,
+				 const struct nlattr * const cda[])
+{
+	__u16 l3num;
+	__u8 l4num;
+	struct nf_conntrack_l4proto *l4proto;
+	struct net *net = sock_net(skb->sk);
+	struct sk_buff *skb2;
+	int ret, err;
+
+	if (!cda[CTA_TIMEOUT_L3PROTO] || !cda[CTA_TIMEOUT_L4PROTO])
+		return -EINVAL;
+
+	l3num = ntohs(nla_get_be16(cda[CTA_TIMEOUT_L3PROTO]));
+	l4num = nla_get_u8(cda[CTA_TIMEOUT_L4PROTO]);
+	l4proto = nf_ct_l4proto_find_get(l3num, l4num);
+
+	/* This protocol is not supported, skip. */
+	if (l4proto->l4proto != l4num) {
+		err = -EOPNOTSUPP;
+		goto err;
+	}
+
+	skb2 = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+	if (skb2 == NULL) {
+		err = -ENOMEM;
+		goto err;
+	}
+
+	ret = cttimeout_default_fill_info(net, skb2, NETLINK_CB(skb).portid,
+					  nlh->nlmsg_seq,
+					  NFNL_MSG_TYPE(nlh->nlmsg_type),
+					  IPCTNL_MSG_TIMEOUT_DEFAULT_SET,
+					  l4proto);
+	if (ret <= 0) {
+		kfree_skb(skb2);
+		err = -ENOMEM;
+		goto err;
+	}
+	ret = netlink_unicast(ctnl, skb2, NETLINK_CB(skb).portid, MSG_DONTWAIT);
+	if (ret > 0)
+		ret = 0;
+
+	/* this avoids a loop in nfnetlink. */
+	return ret == -EAGAIN ? -ENOBUFS : ret;
+err:
+	nf_ct_l4proto_put(l4proto);
+	return err;
+}
+
 #ifdef CONFIG_NF_CONNTRACK_TIMEOUT
 static struct ctnl_timeout *ctnl_timeout_find_get(const char *name)
 {
@@ -384,6 +523,12 @@ static const struct nfnl_callback cttimeout_cb[IPCTNL_MSG_TIMEOUT_MAX] = {
 	[IPCTNL_MSG_TIMEOUT_DELETE]	= { .call = cttimeout_del_timeout,
 					    .attr_count = CTA_TIMEOUT_MAX,
 					    .policy = cttimeout_nla_policy },
+	[IPCTNL_MSG_TIMEOUT_DEFAULT_SET]= { .call = cttimeout_default_set,
+					    .attr_count = CTA_TIMEOUT_MAX,
+					    .policy = cttimeout_nla_policy },
+	[IPCTNL_MSG_TIMEOUT_DEFAULT_GET]= { .call = cttimeout_default_get,
+					    .attr_count = CTA_TIMEOUT_MAX,
+					    .policy = cttimeout_nla_policy },
 };
 
 static const struct nfnetlink_subsystem cttimeout_subsys = {
-- 
cgit 


From a6d30e0fffb32ab9e48fa7fc8f463805d5b0bddb Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Mon, 30 Sep 2013 15:21:15 +0200
Subject: x86/geode: Fix incorrect placement of __initdata tag

__initdata tag should be placed between the variable name and
equal sign for the variable to be placed in the intended
.init.data section.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Link: http://lkml.kernel.org/r/18427893.G5JGWn465D@amdc1032
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/platform/geode/alix.c    | 2 +-
 arch/x86/platform/geode/geos.c    | 2 +-
 arch/x86/platform/geode/net5501.c | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/platform/geode/alix.c b/arch/x86/platform/geode/alix.c
index 90e23e7679a5..76b6632d3143 100644
--- a/arch/x86/platform/geode/alix.c
+++ b/arch/x86/platform/geode/alix.c
@@ -98,7 +98,7 @@ static struct platform_device alix_leds_dev = {
 	.dev.platform_data = &alix_leds_data,
 };
 
-static struct __initdata platform_device *alix_devs[] = {
+static struct platform_device *alix_devs[] __initdata = {
 	&alix_buttons_dev,
 	&alix_leds_dev,
 };
diff --git a/arch/x86/platform/geode/geos.c b/arch/x86/platform/geode/geos.c
index c2e6d53558be..aa733fba2471 100644
--- a/arch/x86/platform/geode/geos.c
+++ b/arch/x86/platform/geode/geos.c
@@ -87,7 +87,7 @@ static struct platform_device geos_leds_dev = {
 	.dev.platform_data = &geos_leds_data,
 };
 
-static struct __initdata platform_device *geos_devs[] = {
+static struct platform_device *geos_devs[] __initdata = {
 	&geos_buttons_dev,
 	&geos_leds_dev,
 };
diff --git a/arch/x86/platform/geode/net5501.c b/arch/x86/platform/geode/net5501.c
index 646e3b5b4bb6..927e38c0089f 100644
--- a/arch/x86/platform/geode/net5501.c
+++ b/arch/x86/platform/geode/net5501.c
@@ -78,7 +78,7 @@ static struct platform_device net5501_leds_dev = {
 	.dev.platform_data = &net5501_leds_data,
 };
 
-static struct __initdata platform_device *net5501_devs[] = {
+static struct platform_device *net5501_devs[] __initdata = {
 	&net5501_buttons_dev,
 	&net5501_leds_dev,
 };
-- 
cgit 


From 131a19bc924c32cecd014be7036686f2186b48ad Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 4 Mar 2013 20:54:46 +0100
Subject: regulatory: enable channels 52-64 and 100-144 for world roaming

If allowed in a country, these channels typically require DFS
so mark them as such. Channel 144 is a bit special, it's coming
into use now to allow more VHT 80 channels, but world roaming
with passive scanning is acceptable anyway. It seems fairly
unlikely that it'll be used as the control channel for a VHT
AP, but it needs to be present to allow a full VHT connection
to an AP that uses it as one of the secondary channels.

Also enable VHT 160 on these channels, and also for channels
36-48 to be able to use VHT 160 there.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/wireless/reg.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index de06d5d1287f..d62cb1e91475 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -172,11 +172,21 @@ static const struct ieee80211_regdomain world_regdom = {
 			NL80211_RRF_NO_IBSS |
 			NL80211_RRF_NO_OFDM),
 		/* IEEE 802.11a, channel 36..48 */
-		REG_RULE(5180-10, 5240+10, 80, 6, 20,
+		REG_RULE(5180-10, 5240+10, 160, 6, 20,
                         NL80211_RRF_PASSIVE_SCAN |
                         NL80211_RRF_NO_IBSS),
 
-		/* NB: 5260 MHz - 5700 MHz requires DFS */
+		/* IEEE 802.11a, channel 52..64 - DFS required */
+		REG_RULE(5260-10, 5320+10, 160, 6, 20,
+			NL80211_RRF_PASSIVE_SCAN |
+			NL80211_RRF_NO_IBSS |
+			NL80211_RRF_DFS),
+
+		/* IEEE 802.11a, channel 100..144 - DFS required */
+		REG_RULE(5500-10, 5720+10, 160, 6, 20,
+			NL80211_RRF_PASSIVE_SCAN |
+			NL80211_RRF_NO_IBSS |
+			NL80211_RRF_DFS),
 
 		/* IEEE 802.11a, channel 149..165 */
 		REG_RULE(5745-10, 5825+10, 80, 6, 20,
-- 
cgit 


From 4d175f340c9c055482688d2205038413dc7b6f1e Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sun, 11 Aug 2013 15:26:04 +0100
Subject: usb: phy: nop: Defer clock prepare until PHY init

Since we only enable the PHY clock on init and the PHY init and shutdown
does not occur in atomitc context there is no need to prepare the clock
before it is enabled.  Move the clk_prepare() operations to go along
with the enables, allowing the clock to be fully idle when not in use.

Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/phy/phy-am335x.c  |  5 ++---
 drivers/usb/phy/phy-generic.c | 24 +++---------------------
 drivers/usb/phy/phy-generic.h |  1 -
 3 files changed, 5 insertions(+), 25 deletions(-)

diff --git a/drivers/usb/phy/phy-am335x.c b/drivers/usb/phy/phy-am335x.c
index c4d614d1f173..f836dc68104c 100644
--- a/drivers/usb/phy/phy-am335x.c
+++ b/drivers/usb/phy/phy-am335x.c
@@ -59,15 +59,14 @@ static int am335x_phy_probe(struct platform_device *pdev)
 
 	ret = usb_add_phy_dev(&am_phy->usb_phy_gen.phy);
 	if (ret)
-		goto err_add;
+		return ret;
 	am_phy->usb_phy_gen.phy.init = am335x_init;
 	am_phy->usb_phy_gen.phy.shutdown = am335x_shutdown;
 
 	platform_set_drvdata(pdev, am_phy);
+
 	return 0;
 
-err_add:
-	usb_phy_gen_cleanup_phy(&am_phy->usb_phy_gen);
 	return ret;
 }
 
diff --git a/drivers/usb/phy/phy-generic.c b/drivers/usb/phy/phy-generic.c
index efe59f3f7fda..fcc31045fda7 100644
--- a/drivers/usb/phy/phy-generic.c
+++ b/drivers/usb/phy/phy-generic.c
@@ -74,7 +74,7 @@ int usb_gen_phy_init(struct usb_phy *phy)
 	}
 
 	if (!IS_ERR(nop->clk))
-		clk_enable(nop->clk);
+		clk_prepare_enable(nop->clk);
 
 	if (!IS_ERR(nop->reset)) {
 		/* De-assert RESET */
@@ -97,7 +97,7 @@ void usb_gen_phy_shutdown(struct usb_phy *phy)
 	}
 
 	if (!IS_ERR(nop->clk))
-		clk_disable(nop->clk);
+		clk_disable_unprepare(nop->clk);
 
 	if (!IS_ERR(nop->vcc)) {
 		if (regulator_disable(nop->vcc))
@@ -160,14 +160,6 @@ int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_gen_xceiv *nop,
 		}
 	}
 
-	if (!IS_ERR(nop->clk)) {
-		err = clk_prepare(nop->clk);
-		if (err) {
-			dev_err(dev, "Error preparing clock\n");
-			return err;
-		}
-	}
-
 	nop->vcc = devm_regulator_get(dev, "vcc");
 	if (IS_ERR(nop->vcc)) {
 		dev_dbg(dev, "Error getting vcc regulator: %ld\n",
@@ -200,13 +192,6 @@ int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_gen_xceiv *nop,
 }
 EXPORT_SYMBOL_GPL(usb_phy_gen_create_phy);
 
-void usb_phy_gen_cleanup_phy(struct usb_phy_gen_xceiv *nop)
-{
-	if (!IS_ERR(nop->clk))
-		clk_unprepare(nop->clk);
-}
-EXPORT_SYMBOL_GPL(usb_phy_gen_cleanup_phy);
-
 static int usb_phy_gen_xceiv_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -252,15 +237,13 @@ static int usb_phy_gen_xceiv_probe(struct platform_device *pdev)
 	if (err) {
 		dev_err(&pdev->dev, "can't register transceiver, err: %d\n",
 			err);
-		goto err_add;
+		return err;
 	}
 
 	platform_set_drvdata(pdev, nop);
 
 	return 0;
 
-err_add:
-	usb_phy_gen_cleanup_phy(nop);
 	return err;
 }
 
@@ -268,7 +251,6 @@ static int usb_phy_gen_xceiv_remove(struct platform_device *pdev)
 {
 	struct usb_phy_gen_xceiv *nop = platform_get_drvdata(pdev);
 
-	usb_phy_gen_cleanup_phy(nop);
 	usb_remove_phy(&nop->phy);
 
 	return 0;
diff --git a/drivers/usb/phy/phy-generic.h b/drivers/usb/phy/phy-generic.h
index 61687d5a965b..386d11b375aa 100644
--- a/drivers/usb/phy/phy-generic.h
+++ b/drivers/usb/phy/phy-generic.h
@@ -15,6 +15,5 @@ void usb_gen_phy_shutdown(struct usb_phy *phy);
 int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_gen_xceiv *nop,
 		enum usb_phy_type type, u32 clk_rate, bool needs_vcc,
 		bool needs_reset);
-void usb_phy_gen_cleanup_phy(struct usb_phy_gen_xceiv *nop);
 
 #endif
-- 
cgit 


From a12226394e7d19734d129766676a5668efd50d5c Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Mon, 19 Aug 2013 12:39:44 +0200
Subject: usb: phy: am335x: add wakeup support

This is based on George Cherian's patch which added power & wakeup
support to am335x and does no longer apply since I took some if the code
apart in favor of the multi instance support.
This compiles and I boots and later it detects a device after I plug it in :)
Could somebody please test it so it does what it should?

Cc: George Cherian <george.cherian@ti.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/phy/phy-am335x-control.c | 42 ++++++++++++++++++++++++++++++++++++
 drivers/usb/phy/phy-am335x.c         | 35 ++++++++++++++++++++++++++++++
 2 files changed, 77 insertions(+)

diff --git a/drivers/usb/phy/phy-am335x-control.c b/drivers/usb/phy/phy-am335x-control.c
index 22cf07d62e4c..0fac976b63b5 100644
--- a/drivers/usb/phy/phy-am335x-control.c
+++ b/drivers/usb/phy/phy-am335x-control.c
@@ -26,6 +26,41 @@ struct am335x_control_usb {
 #define USBPHY_OTGVDET_EN	(1 << 19)
 #define USBPHY_OTGSESSEND_EN	(1 << 20)
 
+#define AM335X_PHY0_WK_EN	(1 << 0)
+#define AM335X_PHY1_WK_EN	(1 << 8)
+
+static void am335x_phy_wkup(struct  phy_control *phy_ctrl, u32 id, bool on)
+{
+	struct am335x_control_usb *usb_ctrl;
+	u32 val;
+	u32 reg;
+
+	usb_ctrl = container_of(phy_ctrl, struct am335x_control_usb, phy_ctrl);
+
+	switch (id) {
+	case 0:
+		reg = AM335X_PHY0_WK_EN;
+		break;
+	case 1:
+		reg = AM335X_PHY1_WK_EN;
+		break;
+	default:
+		WARN_ON(1);
+		return;
+	}
+
+	spin_lock(&usb_ctrl->lock);
+	val = readl(usb_ctrl->wkup);
+
+	if (on)
+		val |= reg;
+	else
+		val &= ~reg;
+
+	writel(val, usb_ctrl->wkup);
+	spin_unlock(&usb_ctrl->lock);
+}
+
 static void am335x_phy_power(struct phy_control *phy_ctrl, u32 id, bool on)
 {
 	struct am335x_control_usb *usb_ctrl;
@@ -59,6 +94,7 @@ static void am335x_phy_power(struct phy_control *phy_ctrl, u32 id, bool on)
 
 static const struct phy_control ctrl_am335x = {
 	.phy_power = am335x_phy_power,
+	.phy_wkup = am335x_phy_wkup,
 };
 
 static const struct of_device_id omap_control_usb_id_table[] = {
@@ -117,6 +153,12 @@ static int am335x_control_usb_probe(struct platform_device *pdev)
 	ctrl_usb->phy_reg = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(ctrl_usb->phy_reg))
 		return PTR_ERR(ctrl_usb->phy_reg);
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "wakeup");
+	ctrl_usb->wkup = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(ctrl_usb->wkup))
+		return PTR_ERR(ctrl_usb->wkup);
+
 	spin_lock_init(&ctrl_usb->lock);
 	ctrl_usb->phy_ctrl = *phy_ctrl;
 
diff --git a/drivers/usb/phy/phy-am335x.c b/drivers/usb/phy/phy-am335x.c
index f836dc68104c..f3478a856edb 100644
--- a/drivers/usb/phy/phy-am335x.c
+++ b/drivers/usb/phy/phy-am335x.c
@@ -78,6 +78,40 @@ static int am335x_phy_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM_RUNTIME
+
+static int am335x_phy_runtime_suspend(struct device *dev)
+{
+	struct platform_device	*pdev = to_platform_device(dev);
+	struct am335x_phy *am_phy = platform_get_drvdata(pdev);
+
+	if (device_may_wakeup(dev))
+		phy_ctrl_wkup(am_phy->phy_ctrl, am_phy->id, true);
+	phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, false);
+	return 0;
+}
+
+static int am335x_phy_runtime_resume(struct device *dev)
+{
+	struct platform_device	*pdev = to_platform_device(dev);
+	struct am335x_phy	*am_phy = platform_get_drvdata(pdev);
+
+	phy_ctrl_power(am_phy->phy_ctrl, am_phy->id, true);
+	if (device_may_wakeup(dev))
+		phy_ctrl_wkup(am_phy->phy_ctrl, am_phy->id, false);
+	return 0;
+}
+
+static const struct dev_pm_ops am335x_pm_ops = {
+	SET_RUNTIME_PM_OPS(am335x_phy_runtime_suspend,
+			am335x_phy_runtime_resume, NULL)
+};
+
+#define DEV_PM_OPS	(&am335x_pm_ops)
+#else
+#define DEV_PM_OPS	NULL
+#endif
+
 static const struct of_device_id am335x_phy_ids[] = {
 	{ .compatible = "ti,am335x-usb-phy" },
 	{ }
@@ -90,6 +124,7 @@ static struct platform_driver am335x_phy_driver = {
 	.driver         = {
 		.name   = "am335x-phy-driver",
 		.owner  = THIS_MODULE,
+		.pm = DEV_PM_OPS,
 		.of_match_table = of_match_ptr(am335x_phy_ids),
 	},
 };
-- 
cgit 


From 1860c925f87b826925fdff57eedd938f1bd1f43b Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 6 Sep 2013 18:09:06 +0200
Subject: usb: musb: name ux500 platforms more broadly

The Kconfig help text is talking about the U5500 which is no
longer supported by the kernel. Name the help text after the
config symbol which is more correct.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/musb/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
index c258a97ef1b0..0fc5bc371940 100644
--- a/drivers/usb/musb/Kconfig
+++ b/drivers/usb/musb/Kconfig
@@ -90,7 +90,7 @@ config USB_MUSB_BLACKFIN
 	depends on (BF54x && !BF544) || (BF52x && ! BF522 && !BF523)
 
 config USB_MUSB_UX500
-	tristate "U8500 and U5500"
+	tristate "Ux500 platforms"
 
 endchoice
 
@@ -112,7 +112,7 @@ choice
 	  allow using DMA on multiplatform kernels.
 
 config USB_UX500_DMA
-	bool 'ST Ericsson U8500 and U5500'
+	bool 'ST Ericsson Ux500'
 	depends on USB_MUSB_UX500
 	help
 	  Enable DMA transfers on UX500 platforms.
-- 
cgit 


From 80d2e76c2e162264dff1c5107a31b8d99e816cd4 Mon Sep 17 00:00:00 2001
From: Pali Rohár <pali.rohar@gmail.com>
Date: Wed, 18 Sep 2013 19:03:33 +0200
Subject: usb: musb: Add missing ATOMIC_INIT_NOTIFIER_HEAD
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

&twl->phy.notifier is not initalized

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/phy/phy-twl4030-usb.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/phy/phy-twl4030-usb.c b/drivers/usb/phy/phy-twl4030-usb.c
index 90730c8762b8..5baa9c7267f4 100644
--- a/drivers/usb/phy/phy-twl4030-usb.c
+++ b/drivers/usb/phy/phy-twl4030-usb.c
@@ -705,6 +705,8 @@ static int twl4030_usb_probe(struct platform_device *pdev)
 	if (device_create_file(&pdev->dev, &dev_attr_vbus))
 		dev_warn(&pdev->dev, "could not create sysfs file\n");
 
+	ATOMIC_INIT_NOTIFIER_HEAD(&twl->phy.notifier);
+
 	/* Our job is to use irqs and status from the power module
 	 * to keep the transceiver disabled when nothing's connected.
 	 *
-- 
cgit 


From 6fa7178ce72764a564b5f5b7d2826d3697b89e3a Mon Sep 17 00:00:00 2001
From: Pali Rohár <pali.rohar@gmail.com>
Date: Wed, 18 Sep 2013 19:03:34 +0200
Subject: usb: musb: Call atomic_notifier_call_chain when status is changed
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

More power supply drivers depends on vbus events and without it they not
working. Power supply drivers using usb_register_notifier, so to deliver
events it is needed to call atomic_notifier_call_chain.

So without atomic notifier power supply driver isp1704 not retrieving
vbus status and reporting bogus values to userspace and also to board
platform data functions. Without proper data charger drivers trying to
charge battery also when charger is disconnected or do not start charging
when wallcharger connects.

Atomic notifier in musb driver was used before v3.5 and was replaced with
omap mailbox. This patch adding atomic_notifier_call_chain call from
function omap_musb_set_mailbox.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/musb/omap2430.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index 59d2245db1c8..cefafdcbe3a6 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -305,6 +305,9 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue)
 	default:
 		dev_dbg(dev, "ID float\n");
 	}
+
+	atomic_notifier_call_chain(&musb->xceiv->notifier,
+			musb->xceiv->last_event, NULL);
 }
 
 
-- 
cgit 


From 36ed03f7796a6695ee1b6c4893ef022328a50e70 Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Mon, 9 Sep 2013 16:48:29 +0800
Subject: usb: gadget: zero: Add flexible auto remote wakeup test method

In order to increase test coverage, we can change the interval between
two remote wakeups every time, and the interval can be any user defined
value. This change will no affect current behavior if the user does not
use two introduced module paramters.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/zero.c | 25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/zero.c b/drivers/usb/gadget/zero.c
index 0deb9d6cde26..0dd07ae1555d 100644
--- a/drivers/usb/gadget/zero.c
+++ b/drivers/usb/gadget/zero.c
@@ -95,6 +95,18 @@ unsigned autoresume = DEFAULT_AUTORESUME;
 module_param(autoresume, uint, S_IRUGO);
 MODULE_PARM_DESC(autoresume, "zero, or seconds before remote wakeup");
 
+/* Maximum Autoresume time */
+unsigned max_autoresume;
+module_param(max_autoresume, uint, S_IRUGO);
+MODULE_PARM_DESC(max_autoresume, "maximum seconds before remote wakeup");
+
+/* Interval between two remote wakeups */
+unsigned autoresume_interval_ms;
+module_param(autoresume_interval_ms, uint, S_IRUGO);
+MODULE_PARM_DESC(autoresume_interval_ms,
+		"milliseconds to increase successive wakeup delays");
+
+static unsigned autoresume_step_ms;
 /*-------------------------------------------------------------------------*/
 
 static struct usb_device_descriptor device_desc = {
@@ -183,8 +195,16 @@ static void zero_suspend(struct usb_composite_dev *cdev)
 		return;
 
 	if (autoresume) {
-		mod_timer(&autoresume_timer, jiffies + (HZ * autoresume));
-		DBG(cdev, "suspend, wakeup in %d seconds\n", autoresume);
+		if (max_autoresume &&
+			(autoresume_step_ms > max_autoresume * 1000))
+				autoresume_step_ms = autoresume * 1000;
+
+		mod_timer(&autoresume_timer, jiffies +
+			msecs_to_jiffies(autoresume_step_ms));
+		DBG(cdev, "suspend, wakeup in %d milliseconds\n",
+			autoresume_step_ms);
+
+		autoresume_step_ms += autoresume_interval_ms;
 	} else
 		DBG(cdev, "%s\n", __func__);
 }
@@ -316,6 +336,7 @@ static int __init zero_bind(struct usb_composite_dev *cdev)
 	if (autoresume) {
 		sourcesink_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
 		loopback_driver.bmAttributes |= USB_CONFIG_ATT_WAKEUP;
+		autoresume_step_ms = autoresume * 1000;
 	}
 
 	/* support OTG systems */
-- 
cgit 


From 88200995ecf35c126374376ac4c39bc32dfe6fa4 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:25:44 +0900
Subject: usb: gadget: amd5536udc: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/amd5536udc.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c
index a9a4346c83aa..54a1e2954cea 100644
--- a/drivers/usb/gadget/amd5536udc.c
+++ b/drivers/usb/gadget/amd5536udc.c
@@ -3078,8 +3078,6 @@ static void udc_pci_remove(struct pci_dev *pdev)
 	if (dev->active)
 		pci_disable_device(pdev);
 
-	pci_set_drvdata(pdev, NULL);
-
 	udc_remove(dev);
 }
 
-- 
cgit 


From 1f0186305b08f61e62383fdb11dfb6dfd45ebc1f Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:27:09 +0900
Subject: usb: gadget: goku_udc: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/goku_udc.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c
index c64deb9e3d62..74bb8df82876 100644
--- a/drivers/usb/gadget/goku_udc.c
+++ b/drivers/usb/gadget/goku_udc.c
@@ -1701,7 +1701,6 @@ static void goku_remove(struct pci_dev *pdev)
 	if (dev->enabled)
 		pci_disable_device(pdev);
 
-	pci_set_drvdata(pdev, NULL);
 	dev->regs = NULL;
 
 	INFO(dev, "unbind\n");
-- 
cgit 


From 42ab3d24f8f5ee3b2f5b9f353fd51aa5a5372fbd Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:27:58 +0900
Subject: usb: gadget: pch_udc: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/pch_udc.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/usb/gadget/pch_udc.c b/drivers/usb/gadget/pch_udc.c
index 24174e1d1564..32d5e923750b 100644
--- a/drivers/usb/gadget/pch_udc.c
+++ b/drivers/usb/gadget/pch_udc.c
@@ -3080,7 +3080,6 @@ static void pch_udc_remove(struct pci_dev *pdev)
 	if (dev->active)
 		pci_disable_device(pdev);
 	kfree(dev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 #ifdef CONFIG_PM
-- 
cgit 


From d1d7e3f537d3cddc79f51c2f0285991446fb6837 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:28:45 +0900
Subject: usb: gadget: net2280: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/net2280.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c
index 0781bff70015..9fbc8fe5ecc0 100644
--- a/drivers/usb/gadget/net2280.c
+++ b/drivers/usb/gadget/net2280.c
@@ -2680,7 +2680,6 @@ static void net2280_remove (struct pci_dev *pdev)
 	if (dev->enabled)
 		pci_disable_device (pdev);
 	device_remove_file (&pdev->dev, &dev_attr_registers);
-	pci_set_drvdata (pdev, NULL);
 
 	INFO (dev, "unbind\n");
 }
-- 
cgit 


From af3848757204a16670d7da94f72beb45564955cc Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Fri, 20 Sep 2013 00:14:38 +0100
Subject: usb: musb: use platform_device_register_full() to avoid directly
 messing with dma masks

Use platform_device_register_full() for those drivers which can, to
avoid messing directly with DMA masks.  This can only be done when
the driver does not need to access the allocated musb platform device
from within its callbacks, which may be called during the musb
device probing.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/musb/am35x.c    | 50 +++++++++++++++------------------------------
 drivers/usb/musb/da8xx.c    | 49 +++++++++++++++-----------------------------
 drivers/usb/musb/davinci.c  | 48 +++++++++++++++----------------------------
 drivers/usb/musb/tusb6010.c | 49 +++++++++++++++-----------------------------
 4 files changed, 68 insertions(+), 128 deletions(-)

diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c
index 5c310c664218..790b22b296b1 100644
--- a/drivers/usb/musb/am35x.c
+++ b/drivers/usb/musb/am35x.c
@@ -89,7 +89,6 @@ struct am35x_glue {
 	struct clk		*phy_clk;
 	struct clk		*clk;
 };
-#define glue_to_musb(g)		platform_get_drvdata(g->musb)
 
 /*
  * am35x_musb_enable - enable interrupts
@@ -452,14 +451,18 @@ static const struct musb_platform_ops am35x_ops = {
 	.set_vbus	= am35x_musb_set_vbus,
 };
 
-static u64 am35x_dmamask = DMA_BIT_MASK(32);
+static const struct platform_device_info am35x_dev_info = {
+	.name		= "musb-hdrc",
+	.id		= PLATFORM_DEVID_AUTO,
+	.dma_mask	= DMA_BIT_MASK(32),
+};
 
 static int am35x_probe(struct platform_device *pdev)
 {
 	struct musb_hdrc_platform_data	*pdata = dev_get_platdata(&pdev->dev);
 	struct platform_device		*musb;
 	struct am35x_glue		*glue;
-
+	struct platform_device_info	pinfo;
 	struct clk			*phy_clk;
 	struct clk			*clk;
 
@@ -471,12 +474,6 @@ static int am35x_probe(struct platform_device *pdev)
 		goto err0;
 	}
 
-	musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO);
-	if (!musb) {
-		dev_err(&pdev->dev, "failed to allocate musb device\n");
-		goto err1;
-	}
-
 	phy_clk = clk_get(&pdev->dev, "fck");
 	if (IS_ERR(phy_clk)) {
 		dev_err(&pdev->dev, "failed to get PHY clock\n");
@@ -503,12 +500,7 @@ static int am35x_probe(struct platform_device *pdev)
 		goto err6;
 	}
 
-	musb->dev.parent		= &pdev->dev;
-	musb->dev.dma_mask		= &am35x_dmamask;
-	musb->dev.coherent_dma_mask	= am35x_dmamask;
-
 	glue->dev			= &pdev->dev;
-	glue->musb			= musb;
 	glue->phy_clk			= phy_clk;
 	glue->clk			= clk;
 
@@ -516,22 +508,17 @@ static int am35x_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, glue);
 
-	ret = platform_device_add_resources(musb, pdev->resource,
-			pdev->num_resources);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to add resources\n");
-		goto err7;
-	}
-
-	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
-	if (ret) {
-		dev_err(&pdev->dev, "failed to add platform_data\n");
-		goto err7;
-	}
-
-	ret = platform_device_add(musb);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to register musb device\n");
+	pinfo = am35x_dev_info;
+	pinfo.parent = &pdev->dev;
+	pinfo.res = pdev->resource;
+	pinfo.num_res = pdev->num_resources;
+	pinfo.data = pdata;
+	pinfo.size_data = sizeof(*pdata);
+
+	glue->musb = musb = platform_device_register_full(&pinfo);
+	if (IS_ERR(musb)) {
+		ret = PTR_ERR(musb);
+		dev_err(&pdev->dev, "failed to register musb device: %d\n", ret);
 		goto err7;
 	}
 
@@ -550,9 +537,6 @@ err4:
 	clk_put(phy_clk);
 
 err3:
-	platform_device_put(musb);
-
-err1:
 	kfree(glue);
 
 err0:
diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c
index d9ddf4122f37..2f2c1cb36421 100644
--- a/drivers/usb/musb/da8xx.c
+++ b/drivers/usb/musb/da8xx.c
@@ -472,7 +472,11 @@ static const struct musb_platform_ops da8xx_ops = {
 	.set_vbus	= da8xx_musb_set_vbus,
 };
 
-static u64 da8xx_dmamask = DMA_BIT_MASK(32);
+static const struct platform_device_info da8xx_dev_info = {
+	.name		= "musb-hdrc",
+	.id		= PLATFORM_DEVID_AUTO,
+	.dma_mask	= DMA_BIT_MASK(32),
+};
 
 static int da8xx_probe(struct platform_device *pdev)
 {
@@ -480,7 +484,7 @@ static int da8xx_probe(struct platform_device *pdev)
 	struct musb_hdrc_platform_data	*pdata = dev_get_platdata(&pdev->dev);
 	struct platform_device		*musb;
 	struct da8xx_glue		*glue;
-
+	struct platform_device_info	pinfo;
 	struct clk			*clk;
 
 	int				ret = -ENOMEM;
@@ -491,12 +495,6 @@ static int da8xx_probe(struct platform_device *pdev)
 		goto err0;
 	}
 
-	musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO);
-	if (!musb) {
-		dev_err(&pdev->dev, "failed to allocate musb device\n");
-		goto err1;
-	}
-
 	clk = clk_get(&pdev->dev, "usb20");
 	if (IS_ERR(clk)) {
 		dev_err(&pdev->dev, "failed to get clock\n");
@@ -510,12 +508,7 @@ static int da8xx_probe(struct platform_device *pdev)
 		goto err4;
 	}
 
-	musb->dev.parent		= &pdev->dev;
-	musb->dev.dma_mask		= &da8xx_dmamask;
-	musb->dev.coherent_dma_mask	= da8xx_dmamask;
-
 	glue->dev			= &pdev->dev;
-	glue->musb			= musb;
 	glue->clk			= clk;
 
 	pdata->platform_ops		= &da8xx_ops;
@@ -535,22 +528,17 @@ static int da8xx_probe(struct platform_device *pdev)
 	musb_resources[1].end = pdev->resource[1].end;
 	musb_resources[1].flags = pdev->resource[1].flags;
 
-	ret = platform_device_add_resources(musb, musb_resources,
-			ARRAY_SIZE(musb_resources));
-	if (ret) {
-		dev_err(&pdev->dev, "failed to add resources\n");
-		goto err5;
-	}
-
-	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
-	if (ret) {
-		dev_err(&pdev->dev, "failed to add platform_data\n");
-		goto err5;
-	}
-
-	ret = platform_device_add(musb);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to register musb device\n");
+	pinfo = da8xx_dev_info;
+	pinfo.parent = &pdev->dev;
+	pinfo.res = musb_resources;
+	pinfo.num_res = ARRAY_SIZE(musb_resources);
+	pinfo.data = pdata;
+	pinfo.size_data = sizeof(*pdata);
+
+	glue->musb = musb = platform_device_register_full(&pinfo);
+	if (IS_ERR(musb)) {
+		ret = PTR_ERR(musb);
+		dev_err(&pdev->dev, "failed to register musb device: %d\n", ret);
 		goto err5;
 	}
 
@@ -563,9 +551,6 @@ err4:
 	clk_put(clk);
 
 err3:
-	platform_device_put(musb);
-
-err1:
 	kfree(glue);
 
 err0:
diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c
index ed0834e2b72e..45aae0bbb8df 100644
--- a/drivers/usb/musb/davinci.c
+++ b/drivers/usb/musb/davinci.c
@@ -505,7 +505,11 @@ static const struct musb_platform_ops davinci_ops = {
 	.set_vbus	= davinci_musb_set_vbus,
 };
 
-static u64 davinci_dmamask = DMA_BIT_MASK(32);
+static const struct platform_device_info davinci_dev_info = {
+	.name		= "musb-hdrc",
+	.id		= PLATFORM_DEVID_AUTO,
+	.dma_mask	= DMA_BIT_MASK(32),
+};
 
 static int davinci_probe(struct platform_device *pdev)
 {
@@ -513,6 +517,7 @@ static int davinci_probe(struct platform_device *pdev)
 	struct musb_hdrc_platform_data	*pdata = dev_get_platdata(&pdev->dev);
 	struct platform_device		*musb;
 	struct davinci_glue		*glue;
+	struct platform_device_info	pinfo;
 	struct clk			*clk;
 
 	int				ret = -ENOMEM;
@@ -523,12 +528,6 @@ static int davinci_probe(struct platform_device *pdev)
 		goto err0;
 	}
 
-	musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO);
-	if (!musb) {
-		dev_err(&pdev->dev, "failed to allocate musb device\n");
-		goto err1;
-	}
-
 	clk = clk_get(&pdev->dev, "usb");
 	if (IS_ERR(clk)) {
 		dev_err(&pdev->dev, "failed to get clock\n");
@@ -542,12 +541,7 @@ static int davinci_probe(struct platform_device *pdev)
 		goto err4;
 	}
 
-	musb->dev.parent		= &pdev->dev;
-	musb->dev.dma_mask		= &davinci_dmamask;
-	musb->dev.coherent_dma_mask	= davinci_dmamask;
-
 	glue->dev			= &pdev->dev;
-	glue->musb			= musb;
 	glue->clk			= clk;
 
 	pdata->platform_ops		= &davinci_ops;
@@ -567,22 +561,17 @@ static int davinci_probe(struct platform_device *pdev)
 	musb_resources[1].end = pdev->resource[1].end;
 	musb_resources[1].flags = pdev->resource[1].flags;
 
-	ret = platform_device_add_resources(musb, musb_resources,
-			ARRAY_SIZE(musb_resources));
-	if (ret) {
-		dev_err(&pdev->dev, "failed to add resources\n");
-		goto err5;
-	}
-
-	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
-	if (ret) {
-		dev_err(&pdev->dev, "failed to add platform_data\n");
-		goto err5;
-	}
-
-	ret = platform_device_add(musb);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to register musb device\n");
+	pinfo = davinci_dev_info;
+	pinfo.parent = &pdev->dev;
+	pinfo.res = musb_resources;
+	pinfo.num_res = ARRAY_SIZE(musb_resources);
+	pinfo.data = pdata;
+	pinfo.size_data = sizeof(*pdata);
+
+	glue->musb = musb = platform_device_register_full(&pinfo);
+	if (IS_ERR(musb)) {
+		ret = PTR_ERR(musb);
+		dev_err(&pdev->dev, "failed to register musb device: %d\n", ret);
 		goto err5;
 	}
 
@@ -595,9 +584,6 @@ err4:
 	clk_put(clk);
 
 err3:
-	platform_device_put(musb);
-
-err1:
 	kfree(glue);
 
 err0:
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index b3b3ed723882..4432314d70ee 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -1152,7 +1152,11 @@ static const struct musb_platform_ops tusb_ops = {
 	.set_vbus	= tusb_musb_set_vbus,
 };
 
-static u64 tusb_dmamask = DMA_BIT_MASK(32);
+static const struct platform_device_info tusb_dev_info = {
+	.name		= "musb-hdrc",
+	.id		= PLATFORM_DEVID_AUTO,
+	.dma_mask	= DMA_BIT_MASK(32),
+};
 
 static int tusb_probe(struct platform_device *pdev)
 {
@@ -1160,7 +1164,7 @@ static int tusb_probe(struct platform_device *pdev)
 	struct musb_hdrc_platform_data	*pdata = dev_get_platdata(&pdev->dev);
 	struct platform_device		*musb;
 	struct tusb6010_glue		*glue;
-
+	struct platform_device_info	pinfo;
 	int				ret = -ENOMEM;
 
 	glue = kzalloc(sizeof(*glue), GFP_KERNEL);
@@ -1169,18 +1173,7 @@ static int tusb_probe(struct platform_device *pdev)
 		goto err0;
 	}
 
-	musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO);
-	if (!musb) {
-		dev_err(&pdev->dev, "failed to allocate musb device\n");
-		goto err1;
-	}
-
-	musb->dev.parent		= &pdev->dev;
-	musb->dev.dma_mask		= &tusb_dmamask;
-	musb->dev.coherent_dma_mask	= tusb_dmamask;
-
 	glue->dev			= &pdev->dev;
-	glue->musb			= musb;
 
 	pdata->platform_ops		= &tusb_ops;
 
@@ -1204,31 +1197,23 @@ static int tusb_probe(struct platform_device *pdev)
 	musb_resources[2].end = pdev->resource[2].end;
 	musb_resources[2].flags = pdev->resource[2].flags;
 
-	ret = platform_device_add_resources(musb, musb_resources,
-			ARRAY_SIZE(musb_resources));
-	if (ret) {
-		dev_err(&pdev->dev, "failed to add resources\n");
-		goto err3;
-	}
-
-	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
-	if (ret) {
-		dev_err(&pdev->dev, "failed to add platform_data\n");
-		goto err3;
-	}
-
-	ret = platform_device_add(musb);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to register musb device\n");
+	pinfo = tusb_dev_info;
+	pinfo.parent = &pdev->dev;
+	pinfo.res = musb_resources;
+	pinfo.num_res = ARRAY_SIZE(musb_resources);
+	pinfo.data = pdata;
+	pinfo.size_data = sizeof(*pdata);
+
+	glue->musb = musb = platform_device_register_full(&pinfo);
+	if (IS_ERR(musb)) {
+		ret = PTR_ERR(musb);
+		dev_err(&pdev->dev, "failed to register musb device: %d\n", ret);
 		goto err3;
 	}
 
 	return 0;
 
 err3:
-	platform_device_put(musb);
-
-err1:
 	kfree(glue);
 
 err0:
-- 
cgit 


From 161bfa98ba6f5b8970234e4392de1f5df4062452 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 15:16:34 +0530
Subject: usb: dwc3: Remove redundant pci_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/dwc3/dwc3-pci.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index 2e252aae51ca..31443aeedcdb 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -165,7 +165,6 @@ static int dwc3_pci_probe(struct pci_dev *pci,
 	return 0;
 
 err3:
-	pci_set_drvdata(pci, NULL);
 	platform_device_put(dwc3);
 err1:
 	pci_disable_device(pci);
@@ -180,7 +179,6 @@ static void dwc3_pci_remove(struct pci_dev *pci)
 	platform_device_unregister(glue->dwc3);
 	platform_device_unregister(glue->usb2_phy);
 	platform_device_unregister(glue->usb3_phy);
-	pci_set_drvdata(pci, NULL);
 	pci_disable_device(pci);
 }
 
-- 
cgit 


From f51a08da6d1d591c021c1aa0ee6dd23f7caf3639 Mon Sep 17 00:00:00 2001
From: Valentin Ilie <valentin.ilie@gmail.com>
Date: Sat, 21 Sep 2013 12:30:15 +0300
Subject: usb: gadget: mv_u3d_core: fix memory leaks

When trb_hw is NULL, trb should be free'd before return.

Signed-off-by: Valentin Ilie <valentin.ilie@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/mv_u3d_core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/gadget/mv_u3d_core.c b/drivers/usb/gadget/mv_u3d_core.c
index 561b30efb8ee..4d31177d5d99 100644
--- a/drivers/usb/gadget/mv_u3d_core.c
+++ b/drivers/usb/gadget/mv_u3d_core.c
@@ -310,6 +310,7 @@ static struct mv_u3d_trb *mv_u3d_build_trb_one(struct mv_u3d_req *req,
 	 */
 	trb_hw = dma_pool_alloc(u3d->trb_pool, GFP_ATOMIC, dma);
 	if (!trb_hw) {
+		kfree(trb);
 		dev_err(u3d->dev,
 			"%s, dma_pool_alloc fail\n", __func__);
 		return NULL;
@@ -454,6 +455,7 @@ static int mv_u3d_req_to_trb(struct mv_u3d_req *req)
 
 		trb_hw = kcalloc(trb_num, sizeof(*trb_hw), GFP_ATOMIC);
 		if (!trb_hw) {
+			kfree(trb);
 			dev_err(u3d->dev,
 					"%s, trb_hw alloc fail\n", __func__);
 			return -ENOMEM;
-- 
cgit 


From d9681ee0812a7502838032bc5f935c2af650b036 Mon Sep 17 00:00:00 2001
From: Vivek Gautam <gautam.vivek@samsung.com>
Date: Mon, 23 Sep 2013 09:08:28 +0530
Subject: usb: dwc3: Remove additional delay of 100ms when resuming

This delay got introduced in:
"7415f17 usb: dwc3: core: add power management support"
which reflected similar code in dwc3_core_soft_reset() function.
However, originally the delay of 100ms in dwc3_core_soft_reset() was
meant to assist USB2PHY and USB3PHY reset, not for usb_phy_init()
sequence.

We should get rid of this delay, since things will still work
fine without this.

Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Vivek Gautam <gautam.vivek@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/dwc3/core.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 474162e9d01d..e88ffae80cac 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -691,7 +691,6 @@ static int dwc3_resume(struct device *dev)
 
 	usb_phy_init(dwc->usb3_phy);
 	usb_phy_init(dwc->usb2_phy);
-	msleep(100);
 
 	spin_lock_irqsave(&dwc->lock, flags);
 
-- 
cgit 


From 77a3a0aa39da49499c4029ee8c4227dac362a076 Mon Sep 17 00:00:00 2001
From: Huang Rui <ray.huang@amd.com>
Date: Tue, 24 Sep 2013 00:03:43 +0800
Subject: usb: usbtest: bmAttributes would better be masked

When transfer type is isochronous, the other bits (bits 5..2) of
bmAttributes in endpoint descriptor might not be set zero. So it's better
to use usb_endpoint_type routine to mask bmAttributes with
USB_ENDPOINT_XFERTYPE_MASK to judge the transfter type later.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/misc/usbtest.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index aa28ac8c7607..3e91d3e98ee8 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -120,7 +120,7 @@ get_endpoints(struct usbtest_dev *dev, struct usb_interface *intf)
 			struct usb_host_endpoint	*e;
 
 			e = alt->endpoint + ep;
-			switch (e->desc.bmAttributes) {
+			switch (usb_endpoint_type(&e->desc)) {
 			case USB_ENDPOINT_XFER_BULK:
 				break;
 			case USB_ENDPOINT_XFER_ISOC:
-- 
cgit 


From ea78201e2e08f8a91e30100c4c4a908b5cf295fc Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Sun, 22 Sep 2013 01:43:58 +0400
Subject: usb: musb: davinci: fix resources passed to MUSB driver for DM6467

After commit 09fc7d22b024692b2fe8a943b246de1af307132b (usb: musb: fix incorrect
usage of  resource pointer), CPPI DMA driver on DaVinci DM6467 can't detect its
dedicated IRQ and so the MUSB IRQ  is erroneously used instead. This is because
only 2 resources are passed to the MUSB driver from the DaVinci glue layer,  so
fix  this by always copying 3 resources (it's  safe since a placeholder for the
3rd resource is always  there) and passing 'pdev->num_resources' instead of the
size of musb_resources[] to platform_device_add_resources().

Cc: <stable@vger.kernel.org> # 3.11+
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/musb/davinci.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c
index 45aae0bbb8df..1121fd741bf8 100644
--- a/drivers/usb/musb/davinci.c
+++ b/drivers/usb/musb/davinci.c
@@ -513,7 +513,7 @@ static const struct platform_device_info davinci_dev_info = {
 
 static int davinci_probe(struct platform_device *pdev)
 {
-	struct resource musb_resources[2];
+	struct resource			musb_resources[3];
 	struct musb_hdrc_platform_data	*pdata = dev_get_platdata(&pdev->dev);
 	struct platform_device		*musb;
 	struct davinci_glue		*glue;
@@ -561,6 +561,15 @@ static int davinci_probe(struct platform_device *pdev)
 	musb_resources[1].end = pdev->resource[1].end;
 	musb_resources[1].flags = pdev->resource[1].flags;
 
+	/*
+	 * For DM6467 3 resources are passed. A placeholder for the 3rd
+	 * resource is always there, so it's safe to always copy it...
+	 */
+	musb_resources[2].name = pdev->resource[2].name;
+	musb_resources[2].start = pdev->resource[2].start;
+	musb_resources[2].end = pdev->resource[2].end;
+	musb_resources[2].flags = pdev->resource[2].flags;
+
 	pinfo = davinci_dev_info;
 	pinfo.parent = &pdev->dev;
 	pinfo.res = musb_resources;
-- 
cgit 


From adcadfa8f373f301e9f622fbf45957adf2d98622 Mon Sep 17 00:00:00 2001
From: Pavel Emelyanov <xemul@openvz.org>
Date: Sat, 29 Jun 2013 21:42:20 +0400
Subject: fuse: Getting file for writeback helper

There will be a .writepageS callback implementation which will need to
get a fuse_file out of a fuse_inode, thus make a helper for this.

Signed-off-by: Maxim Patlasov <MPatlasov@parallels.com>
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
 fs/fuse/file.c | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 4598345ab87d..aab6d05355e4 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1494,6 +1494,20 @@ static void fuse_writepage_end(struct fuse_conn *fc, struct fuse_req *req)
 	fuse_writepage_free(fc, req);
 }
 
+static struct fuse_file *fuse_write_file(struct fuse_conn *fc,
+					 struct fuse_inode *fi)
+{
+	struct fuse_file *ff;
+
+	spin_lock(&fc->lock);
+	BUG_ON(list_empty(&fi->write_files));
+	ff = list_entry(fi->write_files.next, struct fuse_file, write_entry);
+	fuse_file_get(ff);
+	spin_unlock(&fc->lock);
+
+	return ff;
+}
+
 static int fuse_writepage_locked(struct page *page)
 {
 	struct address_space *mapping = page->mapping;
@@ -1501,7 +1515,6 @@ static int fuse_writepage_locked(struct page *page)
 	struct fuse_conn *fc = get_fuse_conn(inode);
 	struct fuse_inode *fi = get_fuse_inode(inode);
 	struct fuse_req *req;
-	struct fuse_file *ff;
 	struct page *tmp_page;
 
 	set_page_writeback(page);
@@ -1515,13 +1528,8 @@ static int fuse_writepage_locked(struct page *page)
 	if (!tmp_page)
 		goto err_free;
 
-	spin_lock(&fc->lock);
-	BUG_ON(list_empty(&fi->write_files));
-	ff = list_entry(fi->write_files.next, struct fuse_file, write_entry);
-	req->ff = fuse_file_get(ff);
-	spin_unlock(&fc->lock);
-
-	fuse_write_fill(req, ff, page_offset(page), 0);
+	req->ff = fuse_write_file(fc, fi);
+	fuse_write_fill(req, req->ff, page_offset(page), 0);
 
 	copy_highpage(tmp_page, page);
 	req->misc.write.in.write_flags |= FUSE_WRITE_CACHE;
-- 
cgit 


From 385b126815d9278cf347504cf17ba62fb57e00ca Mon Sep 17 00:00:00 2001
From: Pavel Emelyanov <xemul@openvz.org>
Date: Sat, 29 Jun 2013 21:42:48 +0400
Subject: fuse: Prepare to handle multiple pages in writeback

The .writepages callback will issue writeback requests with more than one
page aboard. Make existing end/check code be aware of this.

Signed-off-by: Maxim Patlasov <MPatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
 fs/fuse/file.c | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index aab6d05355e4..944acc096752 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -334,7 +334,8 @@ static bool fuse_page_is_writeback(struct inode *inode, pgoff_t index)
 
 		BUG_ON(req->inode != inode);
 		curr_index = req->misc.write.in.offset >> PAGE_CACHE_SHIFT;
-		if (curr_index == index) {
+		if (curr_index <= index &&
+		    index < curr_index + req->num_pages) {
 			found = true;
 			break;
 		}
@@ -1409,7 +1410,10 @@ static ssize_t fuse_direct_write(struct file *file, const char __user *buf,
 
 static void fuse_writepage_free(struct fuse_conn *fc, struct fuse_req *req)
 {
-	__free_page(req->pages[0]);
+	int i;
+
+	for (i = 0; i < req->num_pages; i++)
+		__free_page(req->pages[i]);
 	fuse_file_put(req->ff, false);
 }
 
@@ -1418,11 +1422,14 @@ static void fuse_writepage_finish(struct fuse_conn *fc, struct fuse_req *req)
 	struct inode *inode = req->inode;
 	struct fuse_inode *fi = get_fuse_inode(inode);
 	struct backing_dev_info *bdi = inode->i_mapping->backing_dev_info;
+	int i;
 
 	list_del(&req->writepages_entry);
-	dec_bdi_stat(bdi, BDI_WRITEBACK);
-	dec_zone_page_state(req->pages[0], NR_WRITEBACK_TEMP);
-	bdi_writeout_inc(bdi);
+	for (i = 0; i < req->num_pages; i++) {
+		dec_bdi_stat(bdi, BDI_WRITEBACK);
+		dec_zone_page_state(req->pages[i], NR_WRITEBACK_TEMP);
+		bdi_writeout_inc(bdi);
+	}
 	wake_up(&fi->page_waitq);
 }
 
@@ -1434,14 +1441,15 @@ __acquires(fc->lock)
 	struct fuse_inode *fi = get_fuse_inode(req->inode);
 	loff_t size = i_size_read(req->inode);
 	struct fuse_write_in *inarg = &req->misc.write.in;
+	__u64 data_size = req->num_pages * PAGE_CACHE_SIZE;
 
 	if (!fc->connected)
 		goto out_free;
 
-	if (inarg->offset + PAGE_CACHE_SIZE <= size) {
-		inarg->size = PAGE_CACHE_SIZE;
+	if (inarg->offset + data_size <= size) {
+		inarg->size = data_size;
 	} else if (inarg->offset < size) {
-		inarg->size = size & (PAGE_CACHE_SIZE - 1);
+		inarg->size = size - inarg->offset;
 	} else {
 		/* Got truncated off completely */
 		goto out_free;
-- 
cgit 


From cca2437045dda994d23bd65891b71e091fa35b5a Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Tue, 1 Oct 2013 16:44:51 +0200
Subject: fuse: lock page in mkwrite

Lock the page in fuse_page_mkwrite() to protect against a race with
fuse_writepage() where the page is redirtied before the actual writeback
begins.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
 fs/fuse/file.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 944acc096752..6fb9425c23c6 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1618,14 +1618,17 @@ static void fuse_vma_close(struct vm_area_struct *vma)
 static int fuse_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
 {
 	struct page *page = vmf->page;
-	/*
-	 * Don't use page->mapping as it may become NULL from a
-	 * concurrent truncate.
-	 */
-	struct inode *inode = vma->vm_file->f_mapping->host;
+	struct inode *inode = file_inode(vma->vm_file);
+
+	file_update_time(vma->vm_file);
+	lock_page(page);
+	if (page->mapping != inode->i_mapping) {
+		unlock_page(page);
+		return VM_FAULT_NOPAGE;
+	}
 
 	fuse_wait_on_page_writeback(inode, page->index);
-	return 0;
+	return VM_FAULT_LOCKED;
 }
 
 static const struct vm_operations_struct fuse_file_vm_ops = {
-- 
cgit 


From 72523425fb434e81c0c9f611bd880ce339c4e06b Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Tue, 1 Oct 2013 16:44:52 +0200
Subject: fuse: don't BUG on no write file

Don't bug if there's no writable files found for page writeback.  If ever
this is triggered, a WARN_ON helps debugging it much better then a BUG_ON.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
 fs/fuse/file.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 6fb9425c23c6..6ce0066d7c8c 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1505,12 +1505,14 @@ static void fuse_writepage_end(struct fuse_conn *fc, struct fuse_req *req)
 static struct fuse_file *fuse_write_file(struct fuse_conn *fc,
 					 struct fuse_inode *fi)
 {
-	struct fuse_file *ff;
+	struct fuse_file *ff = NULL;
 
 	spin_lock(&fc->lock);
-	BUG_ON(list_empty(&fi->write_files));
-	ff = list_entry(fi->write_files.next, struct fuse_file, write_entry);
-	fuse_file_get(ff);
+	if (!WARN_ON(list_empty(&fi->write_files))) {
+		ff = list_entry(fi->write_files.next, struct fuse_file,
+				write_entry);
+		fuse_file_get(ff);
+	}
 	spin_unlock(&fc->lock);
 
 	return ff;
@@ -1524,6 +1526,7 @@ static int fuse_writepage_locked(struct page *page)
 	struct fuse_inode *fi = get_fuse_inode(inode);
 	struct fuse_req *req;
 	struct page *tmp_page;
+	int error = -ENOMEM;
 
 	set_page_writeback(page);
 
@@ -1536,7 +1539,11 @@ static int fuse_writepage_locked(struct page *page)
 	if (!tmp_page)
 		goto err_free;
 
+	error = -EIO;
 	req->ff = fuse_write_file(fc, fi);
+	if (!req->ff)
+		goto err_free;
+
 	fuse_write_fill(req, req->ff, page_offset(page), 0);
 
 	copy_highpage(tmp_page, page);
@@ -1566,7 +1573,7 @@ err_free:
 	fuse_request_free(req);
 err:
 	end_page_writeback(page);
-	return -ENOMEM;
+	return error;
 }
 
 static int fuse_writepage(struct page *page, struct writeback_control *wbc)
-- 
cgit 


From 26d614df1da9d7d255686af5d6d4508f77853c01 Mon Sep 17 00:00:00 2001
From: Pavel Emelyanov <xemul@openvz.org>
Date: Sat, 29 Jun 2013 21:45:29 +0400
Subject: fuse: Implement writepages callback

The .writepages one is required to make each writeback request carry more than
one page on it. The patch enables optimized behaviour unconditionally,
i.e. mmap-ed writes will benefit from the patch even if fc->writeback_cache=0.

[SzM: simplify, add comments]

Signed-off-by: Maxim Patlasov <MPatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
 fs/fuse/file.c | 150 +++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 147 insertions(+), 3 deletions(-)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 6ce0066d7c8c..0bd349dd968f 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1502,8 +1502,8 @@ static void fuse_writepage_end(struct fuse_conn *fc, struct fuse_req *req)
 	fuse_writepage_free(fc, req);
 }
 
-static struct fuse_file *fuse_write_file(struct fuse_conn *fc,
-					 struct fuse_inode *fi)
+static struct fuse_file *fuse_write_file_get(struct fuse_conn *fc,
+					     struct fuse_inode *fi)
 {
 	struct fuse_file *ff = NULL;
 
@@ -1540,7 +1540,7 @@ static int fuse_writepage_locked(struct page *page)
 		goto err_free;
 
 	error = -EIO;
-	req->ff = fuse_write_file(fc, fi);
+	req->ff = fuse_write_file_get(fc, fi);
 	if (!req->ff)
 		goto err_free;
 
@@ -1586,6 +1586,149 @@ static int fuse_writepage(struct page *page, struct writeback_control *wbc)
 	return err;
 }
 
+struct fuse_fill_wb_data {
+	struct fuse_req *req;
+	struct fuse_file *ff;
+	struct inode *inode;
+};
+
+static void fuse_writepages_send(struct fuse_fill_wb_data *data)
+{
+	struct fuse_req *req = data->req;
+	struct inode *inode = data->inode;
+	struct fuse_conn *fc = get_fuse_conn(inode);
+	struct fuse_inode *fi = get_fuse_inode(inode);
+
+	req->ff = fuse_file_get(data->ff);
+	spin_lock(&fc->lock);
+	list_add_tail(&req->list, &fi->queued_writes);
+	fuse_flush_writepages(inode);
+	spin_unlock(&fc->lock);
+}
+
+static int fuse_writepages_fill(struct page *page,
+		struct writeback_control *wbc, void *_data)
+{
+	struct fuse_fill_wb_data *data = _data;
+	struct fuse_req *req = data->req;
+	struct inode *inode = data->inode;
+	struct fuse_conn *fc = get_fuse_conn(inode);
+	struct page *tmp_page;
+	int err;
+
+	if (!data->ff) {
+		err = -EIO;
+		data->ff = fuse_write_file_get(fc, get_fuse_inode(inode));
+		if (!data->ff)
+			goto out_unlock;
+	}
+
+	if (req) {
+		BUG_ON(!req->num_pages);
+		if (req->num_pages == FUSE_MAX_PAGES_PER_REQ ||
+		    (req->num_pages + 1) * PAGE_CACHE_SIZE > fc->max_write ||
+		    req->pages[req->num_pages - 1]->index + 1 != page->index) {
+
+			fuse_writepages_send(data);
+			data->req = NULL;
+		}
+	}
+	err = -ENOMEM;
+	tmp_page = alloc_page(GFP_NOFS | __GFP_HIGHMEM);
+	if (!tmp_page)
+		goto out_unlock;
+
+	/*
+	 * The page must not be redirtied until the writeout is completed
+	 * (i.e. userspace has sent a reply to the write request).  Otherwise
+	 * there could be more than one temporary page instance for each real
+	 * page.
+	 *
+	 * This is ensured by holding the page lock in page_mkwrite() while
+	 * checking fuse_page_is_writeback().  We already hold the page lock
+	 * since clear_page_dirty_for_io() and keep it held until we add the
+	 * request to the fi->writepages list and increment req->num_pages.
+	 * After this fuse_page_is_writeback() will indicate that the page is
+	 * under writeback, so we can release the page lock.
+	 */
+	if (data->req == NULL) {
+		struct fuse_inode *fi = get_fuse_inode(inode);
+
+		err = -ENOMEM;
+		req = fuse_request_alloc_nofs(FUSE_MAX_PAGES_PER_REQ);
+		if (!req) {
+			__free_page(tmp_page);
+			goto out_unlock;
+		}
+
+		fuse_write_fill(req, data->ff, page_offset(page), 0);
+		req->misc.write.in.write_flags |= FUSE_WRITE_CACHE;
+		req->in.argpages = 1;
+		req->background = 1;
+		req->num_pages = 0;
+		req->end = fuse_writepage_end;
+		req->inode = inode;
+
+		spin_lock(&fc->lock);
+		list_add(&req->writepages_entry, &fi->writepages);
+		spin_unlock(&fc->lock);
+
+		data->req = req;
+	}
+	set_page_writeback(page);
+
+	copy_highpage(tmp_page, page);
+	req->pages[req->num_pages] = tmp_page;
+	req->page_descs[req->num_pages].offset = 0;
+	req->page_descs[req->num_pages].length = PAGE_SIZE;
+
+	inc_bdi_stat(page->mapping->backing_dev_info, BDI_WRITEBACK);
+	inc_zone_page_state(tmp_page, NR_WRITEBACK_TEMP);
+	end_page_writeback(page);
+
+	/*
+	 * Protected by fc->lock against concurrent access by
+	 * fuse_page_is_writeback().
+	 */
+	spin_lock(&fc->lock);
+	req->num_pages++;
+	spin_unlock(&fc->lock);
+
+	err = 0;
+out_unlock:
+	unlock_page(page);
+
+	return err;
+}
+
+static int fuse_writepages(struct address_space *mapping,
+			   struct writeback_control *wbc)
+{
+	struct inode *inode = mapping->host;
+	struct fuse_fill_wb_data data;
+	int err;
+
+	err = -EIO;
+	if (is_bad_inode(inode))
+		goto out;
+
+	data.inode = inode;
+	data.req = NULL;
+	data.ff = NULL;
+
+	err = write_cache_pages(mapping, wbc, fuse_writepages_fill, &data);
+	if (data.req) {
+		/* Ignore errors if we can write at least one page */
+		BUG_ON(!data.req->num_pages);
+		fuse_writepages_send(&data);
+		err = 0;
+	}
+	if (data.ff)
+		fuse_file_put(data.ff, false);
+out:
+	return err;
+}
+
 static int fuse_launder_page(struct page *page)
 {
 	int err = 0;
@@ -2607,6 +2750,7 @@ static const struct file_operations fuse_direct_io_file_operations = {
 static const struct address_space_operations fuse_file_aops  = {
 	.readpage	= fuse_readpage,
 	.writepage	= fuse_writepage,
+	.writepages	= fuse_writepages,
 	.launder_page	= fuse_launder_page,
 	.readpages	= fuse_readpages,
 	.set_page_dirty	= __set_page_dirty_nobuffers,
-- 
cgit 


From 2d033eaa0073d276ee6c324dd0ade0c5074a5542 Mon Sep 17 00:00:00 2001
From: Maxim Patlasov <MPatlasov@parallels.com>
Date: Fri, 16 Aug 2013 15:51:41 +0400
Subject: fuse: fix race in fuse_writepages()

The patch fixes a race between ftruncate(2), mmap-ed write and write(2):

1) An user makes a page dirty via mmap-ed write.
2) The user performs shrinking truncate(2) intended to purge the page.
3) Before fuse_do_setattr calls truncate_pagecache, the page goes to
   writeback. fuse_writepages_fill attaches a new page to FUSE_WRITE request,
   then releases the original page by end_page_writeback and unlock it.
4) fuse_do_setattr completes and successfully returns. Since now, i_mutex
   is free.
5) Ordinary write(2) extends i_size back to cover the page. Note that
   fuse_send_write_pages do wait for fuse writeback, but for another
   page->index.
6) fuse_writepages_fill attaches more pages to the request (if any), then
   fuse_writepages_send is eventually called. It is supposed to crop
   inarg->size of the request, but it doesn't because i_size has already been
   extended back.

Moving end_page_writeback behind fuse_writepages_send guarantees that
__fuse_release_nowrite (called from fuse_do_setattr) will crop inarg->size
of the request before write(2) gets the chance to extend i_size.

Signed-off-by: Maxim Patlasov <mpatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
 fs/fuse/file.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 0bd349dd968f..cc3a6c4437e4 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1590,6 +1590,7 @@ struct fuse_fill_wb_data {
 	struct fuse_req *req;
 	struct fuse_file *ff;
 	struct inode *inode;
+	struct page **orig_pages;
 };
 
 static void fuse_writepages_send(struct fuse_fill_wb_data *data)
@@ -1598,12 +1599,17 @@ static void fuse_writepages_send(struct fuse_fill_wb_data *data)
 	struct inode *inode = data->inode;
 	struct fuse_conn *fc = get_fuse_conn(inode);
 	struct fuse_inode *fi = get_fuse_inode(inode);
+	int num_pages = req->num_pages;
+	int i;
 
 	req->ff = fuse_file_get(data->ff);
 	spin_lock(&fc->lock);
 	list_add_tail(&req->list, &fi->queued_writes);
 	fuse_flush_writepages(inode);
 	spin_unlock(&fc->lock);
+
+	for (i = 0; i < num_pages; i++)
+		end_page_writeback(data->orig_pages[i]);
 }
 
 static int fuse_writepages_fill(struct page *page,
@@ -1684,7 +1690,7 @@ static int fuse_writepages_fill(struct page *page,
 
 	inc_bdi_stat(page->mapping->backing_dev_info, BDI_WRITEBACK);
 	inc_zone_page_state(tmp_page, NR_WRITEBACK_TEMP);
-	end_page_writeback(page);
+	data->orig_pages[req->num_pages] = page;
 
 	/*
 	 * Protected by fc->lock against concurrent access by
@@ -1716,6 +1722,13 @@ static int fuse_writepages(struct address_space *mapping,
 	data.req = NULL;
 	data.ff = NULL;
 
+	err = -ENOMEM;
+	data.orig_pages = kzalloc(sizeof(struct page *) *
+				  FUSE_MAX_PAGES_PER_REQ,
+				  GFP_NOFS);
+	if (!data.orig_pages)
+		goto out;
+
 	err = write_cache_pages(mapping, wbc, fuse_writepages_fill, &data);
 	if (data.req) {
 		/* Ignore errors if we can write at least one page */
@@ -1725,6 +1738,8 @@ static int fuse_writepages(struct address_space *mapping,
 	}
 	if (data.ff)
 		fuse_file_put(data.ff, false);
+
+	kfree(data.orig_pages);
 out:
 	return err;
 }
-- 
cgit 


From 1e112a484e58cd13e6c90a3dfd9e54ea5859b795 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Tue, 1 Oct 2013 16:44:53 +0200
Subject: fuse: writepages: fix aggregation

Checking against tmp-page indexes is not very useful, and results in one
(or rarely two) page requests.  Which is not much of an improvement...

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
 fs/fuse/file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index cc3a6c4437e4..bf765cf7b112 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1633,7 +1633,7 @@ static int fuse_writepages_fill(struct page *page,
 		BUG_ON(!req->num_pages);
 		if (req->num_pages == FUSE_MAX_PAGES_PER_REQ ||
 		    (req->num_pages + 1) * PAGE_CACHE_SIZE > fc->max_write ||
-		    req->pages[req->num_pages - 1]->index + 1 != page->index) {
+		    data->orig_pages[req->num_pages - 1]->index + 1 != page->index) {
 
 			fuse_writepages_send(data);
 			data->req = NULL;
-- 
cgit 


From 8b284dc47291daf72fe300e1138a2e7ed56f38ab Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Tue, 1 Oct 2013 16:44:53 +0200
Subject: fuse: writepages: handle same page rewrites

As Maxim Patlasov pointed out, it's possible to get a dirty page while it's
copy is still under writeback, despite fuse_page_mkwrite() doing its thing
(direct IO).

This could result in two concurrent write request for the same offset, with
data corruption if they get mixed up.

To prevent this, fuse needs to check and delay such writes.  This
implementation does this by:

 1. check if page is still under writeout, if so create a new, single page
    secondary request for it

 2. chain this secondary request onto the in-flight request

 2/a. if a seconday request for the same offset was already chained to the
    in-flight request, then just copy the contents of the page and discard
    the new secondary request.  This makes sure that for each page will
    have at most two requests associated with it

 3. when the in-flight request finished, send off all secondary requests
    chained onto it

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
 fs/fuse/file.c   | 100 +++++++++++++++++++++++++++++++++++++++++++++++++------
 fs/fuse/fuse_i.h |   1 +
 2 files changed, 91 insertions(+), 10 deletions(-)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index bf765cf7b112..f8ff019cc6ec 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1414,7 +1414,9 @@ static void fuse_writepage_free(struct fuse_conn *fc, struct fuse_req *req)
 
 	for (i = 0; i < req->num_pages; i++)
 		__free_page(req->pages[i]);
-	fuse_file_put(req->ff, false);
+
+	if (req->ff)
+		fuse_file_put(req->ff, false);
 }
 
 static void fuse_writepage_finish(struct fuse_conn *fc, struct fuse_req *req)
@@ -1496,6 +1498,14 @@ static void fuse_writepage_end(struct fuse_conn *fc, struct fuse_req *req)
 
 	mapping_set_error(inode->i_mapping, req->out.h.error);
 	spin_lock(&fc->lock);
+	while (req->misc.write.next) {
+		struct fuse_req *next = req->misc.write.next;
+		req->misc.write.next = next->misc.write.next;
+		next->misc.write.next = NULL;
+		list_add(&next->writepages_entry, &fi->writepages);
+		list_add_tail(&next->list, &fi->queued_writes);
+		fuse_flush_writepages(inode);
+	}
 	fi->writectr--;
 	fuse_writepage_finish(fc, req);
 	spin_unlock(&fc->lock);
@@ -1548,6 +1558,7 @@ static int fuse_writepage_locked(struct page *page)
 
 	copy_highpage(tmp_page, page);
 	req->misc.write.in.write_flags |= FUSE_WRITE_CACHE;
+	req->misc.write.next = NULL;
 	req->in.argpages = 1;
 	req->num_pages = 1;
 	req->pages[0] = tmp_page;
@@ -1612,6 +1623,62 @@ static void fuse_writepages_send(struct fuse_fill_wb_data *data)
 		end_page_writeback(data->orig_pages[i]);
 }
 
+static bool fuse_writepage_in_flight(struct fuse_req *new_req,
+				     struct page *page)
+{
+	struct fuse_conn *fc = get_fuse_conn(new_req->inode);
+	struct fuse_inode *fi = get_fuse_inode(new_req->inode);
+	struct fuse_req *tmp;
+	struct fuse_req *old_req;
+	bool found = false;
+	pgoff_t curr_index;
+
+	BUG_ON(new_req->num_pages != 0);
+
+	spin_lock(&fc->lock);
+	list_del(&new_req->writepages_entry);
+	new_req->num_pages = 1;
+	list_for_each_entry(old_req, &fi->writepages, writepages_entry) {
+		BUG_ON(old_req->inode != new_req->inode);
+		curr_index = old_req->misc.write.in.offset >> PAGE_CACHE_SHIFT;
+		if (curr_index <= page->index &&
+		    page->index < curr_index + old_req->num_pages) {
+			found = true;
+			break;
+		}
+	}
+	if (!found)
+		goto out_unlock;
+
+	for (tmp = old_req; tmp != NULL; tmp = tmp->misc.write.next) {
+		BUG_ON(tmp->inode != new_req->inode);
+		curr_index = tmp->misc.write.in.offset >> PAGE_CACHE_SHIFT;
+		if (tmp->num_pages == 1 &&
+		    curr_index == page->index) {
+			old_req = tmp;
+		}
+	}
+
+	if (old_req->num_pages == 1 && (old_req->state == FUSE_REQ_INIT ||
+					old_req->state == FUSE_REQ_PENDING)) {
+		copy_highpage(old_req->pages[0], page);
+		spin_unlock(&fc->lock);
+
+		dec_bdi_stat(page->mapping->backing_dev_info, BDI_WRITEBACK);
+		dec_zone_page_state(page, NR_WRITEBACK_TEMP);
+		fuse_writepage_free(fc, new_req);
+		fuse_request_free(new_req);
+		goto out;
+	} else {
+		new_req->misc.write.next = old_req->misc.write.next;
+		old_req->misc.write.next = new_req;
+	}
+out_unlock:
+	spin_unlock(&fc->lock);
+out:
+	return found;
+}
+
 static int fuse_writepages_fill(struct page *page,
 		struct writeback_control *wbc, void *_data)
 {
@@ -1620,6 +1687,7 @@ static int fuse_writepages_fill(struct page *page,
 	struct inode *inode = data->inode;
 	struct fuse_conn *fc = get_fuse_conn(inode);
 	struct page *tmp_page;
+	bool is_writeback;
 	int err;
 
 	if (!data->ff) {
@@ -1629,15 +1697,20 @@ static int fuse_writepages_fill(struct page *page,
 			goto out_unlock;
 	}
 
-	if (req) {
-		BUG_ON(!req->num_pages);
-		if (req->num_pages == FUSE_MAX_PAGES_PER_REQ ||
-		    (req->num_pages + 1) * PAGE_CACHE_SIZE > fc->max_write ||
-		    data->orig_pages[req->num_pages - 1]->index + 1 != page->index) {
+	/*
+	 * Being under writeback is unlikely but possible.  For example direct
+	 * read to an mmaped fuse file will set the page dirty twice; once when
+	 * the pages are faulted with get_user_pages(), and then after the read
+	 * completed.
+	 */
+	is_writeback = fuse_page_is_writeback(inode, page->index);
 
-			fuse_writepages_send(data);
-			data->req = NULL;
-		}
+	if (req && req->num_pages &&
+	    (is_writeback || req->num_pages == FUSE_MAX_PAGES_PER_REQ ||
+	     (req->num_pages + 1) * PAGE_CACHE_SIZE > fc->max_write ||
+	     data->orig_pages[req->num_pages - 1]->index + 1 != page->index)) {
+		fuse_writepages_send(data);
+		data->req = NULL;
 	}
 	err = -ENOMEM;
 	tmp_page = alloc_page(GFP_NOFS | __GFP_HIGHMEM);
@@ -1669,6 +1742,7 @@ static int fuse_writepages_fill(struct page *page,
 
 		fuse_write_fill(req, data->ff, page_offset(page), 0);
 		req->misc.write.in.write_flags |= FUSE_WRITE_CACHE;
+		req->misc.write.next = NULL;
 		req->in.argpages = 1;
 		req->background = 1;
 		req->num_pages = 0;
@@ -1690,6 +1764,13 @@ static int fuse_writepages_fill(struct page *page,
 
 	inc_bdi_stat(page->mapping->backing_dev_info, BDI_WRITEBACK);
 	inc_zone_page_state(tmp_page, NR_WRITEBACK_TEMP);
+
+	err = 0;
+	if (is_writeback && fuse_writepage_in_flight(req, page)) {
+		end_page_writeback(page);
+		data->req = NULL;
+		goto out_unlock;
+	}
 	data->orig_pages[req->num_pages] = page;
 
 	/*
@@ -1700,7 +1781,6 @@ static int fuse_writepages_fill(struct page *page,
 	req->num_pages++;
 	spin_unlock(&fc->lock);
 
-	err = 0;
 out_unlock:
 	unlock_page(page);
 
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 5b9e6f3b6aef..643274852c8b 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -321,6 +321,7 @@ struct fuse_req {
 		struct {
 			struct fuse_write_in in;
 			struct fuse_write_out out;
+			struct fuse_req *next;
 		} write;
 		struct fuse_notify_retrieve_in retrieve_in;
 		struct fuse_lk_in lk_in;
-- 
cgit 


From ff17be0864777fe0dfb0a477868a8cb95c1ff90e Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Tue, 1 Oct 2013 16:44:53 +0200
Subject: fuse: writepage: skip already in flight

If ->writepage() tries to write back a page whose copy is still in flight,
then just skip by calling redirty_page_for_writepage().

This is OK, since now ->writepage() should never be called for data
integrity sync.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
 fs/fuse/file.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index f8ff019cc6ec..135360e2b9e5 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1591,6 +1591,18 @@ static int fuse_writepage(struct page *page, struct writeback_control *wbc)
 {
 	int err;
 
+	if (fuse_page_is_writeback(page->mapping->host, page->index)) {
+		/*
+		 * ->writepages() should be called for sync() and friends.  We
+		 * should only get here on direct reclaim and then we are
+		 * allowed to skip a page which is already in flight
+		 */
+		WARN_ON(wbc->sync_mode == WB_SYNC_ALL);
+
+		redirty_page_for_writepage(wbc, page);
+		return 0;
+	}
+
 	err = fuse_writepage_locked(page);
 	unlock_page(page);
 
-- 
cgit 


From cb2ffb26e67ef89c44f46e971440cda2f83ae236 Mon Sep 17 00:00:00 2001
From: Tom Gundersen <teg@jklm.no>
Date: Mon, 9 Sep 2013 20:18:27 +0200
Subject: cuse: add fix minor number to /dev/cuse

This allows udev (or more recently systemd-tmpfiles) to create /dev/cuse on
boot, in the same way as /dev/fuse is currently created, and the corresponding
module to be loaded on first access.

The corresponding functionalty was introduced for fuse in commit 578454f.

Signed-off-by: Tom Gundersen <teg@jklm.no>
Cc: Kay Sievers <kay@vrfy.org>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
 Documentation/devices.txt  | 1 +
 fs/fuse/cuse.c             | 5 ++++-
 include/linux/miscdevice.h | 1 +
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/devices.txt b/Documentation/devices.txt
index 23721d3be3e6..80b72419ffd8 100644
--- a/Documentation/devices.txt
+++ b/Documentation/devices.txt
@@ -414,6 +414,7 @@ Your cooperation is appreciated.
 		200 = /dev/net/tun	TAP/TUN network device
 		201 = /dev/button/gulpb	Transmeta GULP-B buttons
 		202 = /dev/emd/ctl	Enhanced Metadisk RAID (EMD) control
+		203 = /dev/cuse		Cuse (character device in user-space)
 		204 = /dev/video/em8300		EM8300 DVD decoder control
 		205 = /dev/video/em8300_mv	EM8300 DVD decoder video
 		206 = /dev/video/em8300_ma	EM8300 DVD decoder audio
diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c
index adbfd66b380f..24da581cb52b 100644
--- a/fs/fuse/cuse.c
+++ b/fs/fuse/cuse.c
@@ -589,11 +589,14 @@ static struct attribute *cuse_class_dev_attrs[] = {
 ATTRIBUTE_GROUPS(cuse_class_dev);
 
 static struct miscdevice cuse_miscdev = {
-	.minor		= MISC_DYNAMIC_MINOR,
+	.minor		= CUSE_MINOR,
 	.name		= "cuse",
 	.fops		= &cuse_channel_fops,
 };
 
+MODULE_ALIAS_MISCDEV(CUSE_MINOR);
+MODULE_ALIAS("devname:cuse");
+
 static int __init cuse_init(void)
 {
 	int i, rc;
diff --git a/include/linux/miscdevice.h b/include/linux/miscdevice.h
index 09c2300ddb37..c8cf093d8b71 100644
--- a/include/linux/miscdevice.h
+++ b/include/linux/miscdevice.h
@@ -31,6 +31,7 @@
 #define I2O_MINOR		166
 #define MICROCODE_MINOR		184
 #define TUN_MINOR		200
+#define CUSE_MINOR		203
 #define MWAVE_MINOR		219	/* ACP/Mwave Modem */
 #define MPT_MINOR		220
 #define MPT2SAS_MINOR		221
-- 
cgit 


From a346941152878d8cab198fb10ba45dd706ed5ea1 Mon Sep 17 00:00:00 2001
From: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Date: Thu, 26 Sep 2013 15:55:25 +0800
Subject: usb: gadget: Use ERR_CAST inlined function instead of
 ERR_PTR(PTR_ERR(...))

trivial patch converting ERR_PTR(PTR_ERR()) into ERR_CAST().
No functional changes.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/configfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
index 8f0d6141e5e6..1bfacbfca1d8 100644
--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c
@@ -557,7 +557,7 @@ static struct config_group *function_make(
 
 	fi = usb_get_function_instance(func_name);
 	if (IS_ERR(fi))
-		return ERR_PTR(PTR_ERR(fi));
+		return ERR_CAST(fi);
 
 	ret = config_item_set_name(&fi->group.cg_item, name);
 	if (ret) {
-- 
cgit 


From 092a4bd069fcca09f345a79c8abdc945cf6b1b57 Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Thu, 26 Sep 2013 14:38:15 +0200
Subject: usb: gadget: configfs: add a method to unregister the gadget

Add a method to unregister the gadget using its config_item.

There can be functions (e.g. mass storage), which in some circumstances
need the gadget stopped. Add a method of stopping the gadget.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/configfs.c | 8 ++++++++
 drivers/usb/gadget/configfs.h | 6 ++++++
 2 files changed, 14 insertions(+)
 create mode 100644 drivers/usb/gadget/configfs.h

diff --git a/drivers/usb/gadget/configfs.c b/drivers/usb/gadget/configfs.c
index 1bfacbfca1d8..25885112fa35 100644
--- a/drivers/usb/gadget/configfs.c
+++ b/drivers/usb/gadget/configfs.c
@@ -991,6 +991,14 @@ static struct configfs_subsystem gadget_subsys = {
 	.su_mutex = __MUTEX_INITIALIZER(gadget_subsys.su_mutex),
 };
 
+void unregister_gadget_item(struct config_item *item)
+{
+	struct gadget_info *gi = to_gadget_info(item);
+
+	unregister_gadget(gi);
+}
+EXPORT_SYMBOL(unregister_gadget_item);
+
 static int __init gadget_cfs_init(void)
 {
 	int ret;
diff --git a/drivers/usb/gadget/configfs.h b/drivers/usb/gadget/configfs.h
new file mode 100644
index 000000000000..a7b564a913d1
--- /dev/null
+++ b/drivers/usb/gadget/configfs.h
@@ -0,0 +1,6 @@
+#ifndef USB__GADGET__CONFIGFS__H
+#define USB__GADGET__CONFIGFS__H
+
+void unregister_gadget_item(struct config_item *item);
+
+#endif /*  USB__GADGET__CONFIGFS__H */
-- 
cgit 


From 6fdc5dd25e0cd5afc114fe65427150c65f0eb67b Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Thu, 26 Sep 2013 14:38:16 +0200
Subject: usb: gadget: create a utility module for mass_storage

Converting to configfs requires making the f_mass_storage.c a module.

But first we need to get rid of "#include "storage_common.c".

This patch makes storage_common.c a separately compiled file, which is
built as a utility module named u_ms.ko. After all mass storage users are
converted to the new function interface this module can be eliminated
by merging it with the mass storage function's module.

USB descriptors are exported so that they can be accessed from
f_mass_storage.

FSG_VENDOR_ID and FSG_PRODUCT_ID are moved to their only user.

Handling of CONFIG_USB_GADGET_DEBUG_FILES is moved to f_mass_storage.c.
The fsg_num_buffers static is moved to FSG_MODULE_PARAMETER users, so
instead of using a global variable the f_mass_storage introduces
fsg_num_buffers member in fsg_common (and fsg_config).

fsg_strings and fsg_stringtab are moved to f_mass_storage.c.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/Kconfig          |   6 +
 drivers/usb/gadget/Makefile         |   2 +
 drivers/usb/gadget/acm_ms.c         |  17 +-
 drivers/usb/gadget/f_mass_storage.c | 106 ++++++++++--
 drivers/usb/gadget/mass_storage.c   |  25 ++-
 drivers/usb/gadget/multi.c          |  17 +-
 drivers/usb/gadget/storage_common.c | 331 +++++++-----------------------------
 drivers/usb/gadget/storage_common.h | 210 +++++++++++++++++++++++
 8 files changed, 423 insertions(+), 291 deletions(-)
 create mode 100644 drivers/usb/gadget/storage_common.h

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 48cddf3cd6b8..98220dcca315 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -525,6 +525,9 @@ config USB_F_SUBSET
 config USB_F_RNDIS
 	tristate
 
+config USB_U_MS
+	tristate
+
 choice
 	tristate "USB Gadget Drivers"
 	default USB_ETH
@@ -878,6 +881,7 @@ config USB_MASS_STORAGE
 	tristate "Mass Storage Gadget"
 	depends on BLOCK
 	select USB_LIBCOMPOSITE
+	select USB_U_MS
 	help
 	  The Mass Storage Gadget acts as a USB Mass Storage disk drive.
 	  As its storage repository it can use a regular file or a block
@@ -1001,6 +1005,7 @@ config USB_G_ACM_MS
 	select USB_LIBCOMPOSITE
 	select USB_U_SERIAL
 	select USB_F_ACM
+	select USB_U_MS
 	help
 	  This driver provides two functions in one configuration:
 	  a mass storage, and a CDC ACM (serial port) link.
@@ -1017,6 +1022,7 @@ config USB_G_MULTI
 	select USB_U_ETHER
 	select USB_U_RNDIS
 	select USB_F_ACM
+	select USB_U_MS
 	help
 	  The Multifunction Composite Gadget provides Ethernet (RNDIS
 	  and/or CDC Ethernet), mass storage and ACM serial link
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index 386db9daf1d9..d90a0b079182 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -60,6 +60,8 @@ usb_f_ecm_subset-y		:= f_subset.o
 obj-$(CONFIG_USB_F_SUBSET)	+= usb_f_ecm_subset.o
 usb_f_rndis-y			:= f_rndis.o
 obj-$(CONFIG_USB_F_RNDIS)	+= usb_f_rndis.o
+u_ms-y				:= storage_common.o
+obj-$(CONFIG_USB_U_MS)		+= u_ms.o
 
 #
 # USB gadget drivers
diff --git a/drivers/usb/gadget/acm_ms.c b/drivers/usb/gadget/acm_ms.c
index 4b947bb50f62..992ffb00272f 100644
--- a/drivers/usb/gadget/acm_ms.c
+++ b/drivers/usb/gadget/acm_ms.c
@@ -104,6 +104,20 @@ static struct usb_gadget_strings *dev_strings[] = {
 /****************************** Configurations ******************************/
 
 static struct fsg_module_parameters fsg_mod_data = { .stall = 1 };
+#ifdef CONFIG_USB_GADGET_DEBUG_FILES
+
+static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS;
+
+#else
+
+/*
+ * Number of buffers we will use.
+ * 2 is usually enough for good buffering pipeline
+ */
+#define fsg_num_buffers	CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS
+
+#endif /* CONFIG_USB_DEBUG */
+
 FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data);
 
 static struct fsg_common fsg_common;
@@ -167,7 +181,8 @@ static int __init acm_ms_bind(struct usb_composite_dev *cdev)
 	void			*retp;
 
 	/* set up mass storage function */
-	retp = fsg_common_from_params(&fsg_common, cdev, &fsg_mod_data);
+	retp = fsg_common_from_params(&fsg_common, cdev, &fsg_mod_data,
+				      fsg_num_buffers);
 	if (IS_ERR(retp)) {
 		status = PTR_ERR(retp);
 		return PTR_ERR(retp);
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index a01d7d38c016..def3426108b4 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -228,8 +228,18 @@
 
 static const char fsg_string_interface[] = "Mass Storage";
 
-#include "storage_common.c"
+#include "storage_common.h"
 
+/* Static strings, in UTF-8 (for simplicity we use only ASCII characters) */
+static struct usb_string		fsg_strings[] = {
+	{FSG_STRING_INTERFACE,		fsg_string_interface},
+	{}
+};
+
+static struct usb_gadget_strings	fsg_stringtab = {
+	.language	= 0x0409,		/* en-us */
+	.strings	= fsg_strings,
+};
 
 /*-------------------------------------------------------------------------*/
 
@@ -268,6 +278,7 @@ struct fsg_common {
 	struct fsg_buffhd	*next_buffhd_to_fill;
 	struct fsg_buffhd	*next_buffhd_to_drain;
 	struct fsg_buffhd	*buffhds;
+	unsigned int		fsg_num_buffers;
 
 	int			cmnd_size;
 	u8			cmnd[MAX_COMMAND_SIZE];
@@ -332,6 +343,7 @@ struct fsg_config {
 	const char *product_name;		/* 16 characters or less */
 
 	char			can_stall;
+	unsigned int		fsg_num_buffers;
 };
 
 struct fsg_dev {
@@ -2244,7 +2256,7 @@ reset:
 	if (common->fsg) {
 		fsg = common->fsg;
 
-		for (i = 0; i < fsg_num_buffers; ++i) {
+		for (i = 0; i < common->fsg_num_buffers; ++i) {
 			struct fsg_buffhd *bh = &common->buffhds[i];
 
 			if (bh->inreq) {
@@ -2303,7 +2315,7 @@ reset:
 	clear_bit(IGNORE_BULK_OUT, &fsg->atomic_bitflags);
 
 	/* Allocate the requests */
-	for (i = 0; i < fsg_num_buffers; ++i) {
+	for (i = 0; i < common->fsg_num_buffers; ++i) {
 		struct fsg_buffhd	*bh = &common->buffhds[i];
 
 		rc = alloc_request(common, fsg->bulk_in, &bh->inreq);
@@ -2372,7 +2384,7 @@ static void handle_exception(struct fsg_common *common)
 
 	/* Cancel all the pending transfers */
 	if (likely(common->fsg)) {
-		for (i = 0; i < fsg_num_buffers; ++i) {
+		for (i = 0; i < common->fsg_num_buffers; ++i) {
 			bh = &common->buffhds[i];
 			if (bh->inreq_busy)
 				usb_ep_dequeue(common->fsg->bulk_in, bh->inreq);
@@ -2384,7 +2396,7 @@ static void handle_exception(struct fsg_common *common)
 		/* Wait until everything is idle */
 		for (;;) {
 			int num_active = 0;
-			for (i = 0; i < fsg_num_buffers; ++i) {
+			for (i = 0; i < common->fsg_num_buffers; ++i) {
 				bh = &common->buffhds[i];
 				num_active += bh->inreq_busy + bh->outreq_busy;
 			}
@@ -2407,7 +2419,7 @@ static void handle_exception(struct fsg_common *common)
 	 */
 	spin_lock_irq(&common->lock);
 
-	for (i = 0; i < fsg_num_buffers; ++i) {
+	for (i = 0; i < common->fsg_num_buffers; ++i) {
 		bh = &common->buffhds[i];
 		bh->state = BUF_STATE_EMPTY;
 	}
@@ -2580,6 +2592,41 @@ static int fsg_main_thread(void *common_)
 
 /*************************** DEVICE ATTRIBUTES ***************************/
 
+static ssize_t ro_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	return fsg_show_ro(dev, attr, buf);
+}
+
+static ssize_t nofua_show(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	return fsg_show_nofua(dev, attr, buf);
+}
+
+static ssize_t file_show(struct device *dev, struct device_attribute *attr,
+			 char *buf)
+{
+	return fsg_show_file(dev, attr, buf);
+}
+
+static ssize_t ro_store(struct device *dev, struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	return fsg_store_ro(dev, attr, buf, count);
+}
+
+static ssize_t nofua_store(struct device *dev, struct device_attribute *attr,
+			   const char *buf, size_t count)
+{
+	return fsg_store_nofua(dev, attr, buf, count);
+}
+
+static ssize_t file_store(struct device *dev, struct device_attribute *attr,
+			  const char *buf, size_t count)
+{
+	return fsg_store_file(dev, attr, buf, count);
+}
+
 static DEVICE_ATTR_RW(ro);
 static DEVICE_ATTR_RW(nofua);
 static DEVICE_ATTR_RW(file);
@@ -2607,6 +2654,16 @@ static inline void fsg_common_put(struct fsg_common *common)
 	kref_put(&common->ref, fsg_common_release);
 }
 
+/* check if fsg_num_buffers is within a valid range */
+static inline int fsg_num_buffers_validate(unsigned int fsg_num_buffers)
+{
+	if (fsg_num_buffers >= 2 && fsg_num_buffers <= 4)
+		return 0;
+	pr_err("fsg_num_buffers %u is out of range (%d to %d)\n",
+	       fsg_num_buffers, 2, 4);
+	return -EINVAL;
+}
+
 static struct fsg_common *fsg_common_init(struct fsg_common *common,
 					  struct usb_composite_dev *cdev,
 					  struct fsg_config *cfg)
@@ -2618,7 +2675,7 @@ static struct fsg_common *fsg_common_init(struct fsg_common *common,
 	int nluns, i, rc;
 	char *pathbuf;
 
-	rc = fsg_num_buffers_validate();
+	rc = fsg_num_buffers_validate(cfg->fsg_num_buffers);
 	if (rc != 0)
 		return ERR_PTR(rc);
 
@@ -2640,7 +2697,8 @@ static struct fsg_common *fsg_common_init(struct fsg_common *common,
 		common->free_storage_on_release = 0;
 	}
 
-	common->buffhds = kcalloc(fsg_num_buffers,
+	common->fsg_num_buffers = cfg->fsg_num_buffers;
+	common->buffhds = kcalloc(common->fsg_num_buffers,
 				  sizeof *(common->buffhds), GFP_KERNEL);
 	if (!common->buffhds) {
 		if (common->free_storage_on_release)
@@ -2727,7 +2785,7 @@ static struct fsg_common *fsg_common_init(struct fsg_common *common,
 
 	/* Data buffers cyclic list */
 	bh = common->buffhds;
-	i = fsg_num_buffers;
+	i = common->fsg_num_buffers;
 	goto buffhds_first_it;
 	do {
 		bh->next = bh + 1;
@@ -2847,7 +2905,7 @@ static void fsg_common_release(struct kref *ref)
 
 	{
 		struct fsg_buffhd *bh = common->buffhds;
-		unsigned i = fsg_num_buffers;
+		unsigned i = common->fsg_num_buffers;
 		do {
 			kfree(bh->buf);
 		} while (++bh, --i);
@@ -3009,7 +3067,7 @@ struct fsg_module_parameters {
 			   S_IRUGO);					\
 	MODULE_PARM_DESC(prefix ## name, desc)
 
-#define FSG_MODULE_PARAMETERS(prefix, params)				\
+#define __FSG_MODULE_PARAMETERS(prefix, params)				\
 	_FSG_MODULE_PARAM_ARRAY(prefix, params, file, charp,		\
 				"names of backing files or devices");	\
 	_FSG_MODULE_PARAM_ARRAY(prefix, params, ro, bool,		\
@@ -3025,9 +3083,24 @@ struct fsg_module_parameters {
 	_FSG_MODULE_PARAM(prefix, params, stall, bool,			\
 			  "false to prevent bulk stalls")
 
+#ifdef CONFIG_USB_GADGET_DEBUG_FILES
+
+#define FSG_MODULE_PARAMETERS(prefix, params)				\
+	__FSG_MODULE_PARAMETERS(prefix, params);			\
+	module_param_named(num_buffers, fsg_num_buffers, uint, S_IRUGO);\
+	MODULE_PARM_DESC(num_buffers, "Number of pipeline buffers")
+#else
+
+#define FSG_MODULE_PARAMETERS(prefix, params)				\
+	__FSG_MODULE_PARAMETERS(prefix, params)
+
+#endif
+
+
 static void
 fsg_config_from_params(struct fsg_config *cfg,
-		       const struct fsg_module_parameters *params)
+		       const struct fsg_module_parameters *params,
+		       unsigned int fsg_num_buffers)
 {
 	struct fsg_lun_config *lun;
 	unsigned i;
@@ -3055,19 +3128,22 @@ fsg_config_from_params(struct fsg_config *cfg,
 
 	/* Finalise */
 	cfg->can_stall = params->stall;
+	cfg->fsg_num_buffers = fsg_num_buffers;
 }
 
 static inline struct fsg_common *
 fsg_common_from_params(struct fsg_common *common,
 		       struct usb_composite_dev *cdev,
-		       const struct fsg_module_parameters *params)
+		       const struct fsg_module_parameters *params,
+		       unsigned int fsg_num_buffers)
 	__attribute__((unused));
 static inline struct fsg_common *
 fsg_common_from_params(struct fsg_common *common,
 		       struct usb_composite_dev *cdev,
-		       const struct fsg_module_parameters *params)
+		       const struct fsg_module_parameters *params,
+		       unsigned int fsg_num_buffers)
 {
 	struct fsg_config cfg;
-	fsg_config_from_params(&cfg, params);
+	fsg_config_from_params(&cfg, params, fsg_num_buffers);
 	return fsg_common_init(common, cdev, &cfg);
 }
diff --git a/drivers/usb/gadget/mass_storage.c b/drivers/usb/gadget/mass_storage.c
index 080e577773d5..4723d1b04cff 100644
--- a/drivers/usb/gadget/mass_storage.c
+++ b/drivers/usb/gadget/mass_storage.c
@@ -37,6 +37,15 @@
 #define DRIVER_DESC		"Mass Storage Gadget"
 #define DRIVER_VERSION		"2009/09/11"
 
+/*
+ * Thanks to NetChip Technologies for donating this product ID.
+ *
+ * DO NOT REUSE THESE IDs with any other driver!!  Ever!!
+ * Instead:  allocate your own, using normal USB-IF procedures.
+ */
+#define FSG_VENDOR_ID	0x0525	/* NetChip */
+#define FSG_PRODUCT_ID	0xa4a5	/* Linux-USB File-backed Storage Gadget */
+
 /*-------------------------------------------------------------------------*/
 
 /*
@@ -102,6 +111,20 @@ static struct usb_gadget_strings *dev_strings[] = {
 static struct fsg_module_parameters mod_data = {
 	.stall = 1
 };
+#ifdef CONFIG_USB_GADGET_DEBUG_FILES
+
+static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS;
+
+#else
+
+/*
+ * Number of buffers we will use.
+ * 2 is usually enough for good buffering pipeline
+ */
+#define fsg_num_buffers	CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS
+
+#endif /* CONFIG_USB_GADGET_DEBUG_FILES */
+
 FSG_MODULE_PARAMETERS(/* no prefix */, mod_data);
 
 static unsigned long msg_registered;
@@ -129,7 +152,7 @@ static int __init msg_do_config(struct usb_configuration *c)
 		c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
 	}
 
-	fsg_config_from_params(&config, &mod_data);
+	fsg_config_from_params(&config, &mod_data, fsg_num_buffers);
 	config.ops = &ops;
 
 	retp = fsg_common_init(&common, c->cdev, &config);
diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c
index 23393254a8a3..6867d9dbbca4 100644
--- a/drivers/usb/gadget/multi.c
+++ b/drivers/usb/gadget/multi.c
@@ -132,6 +132,20 @@ static struct usb_gadget_strings *dev_strings[] = {
 /****************************** Configurations ******************************/
 
 static struct fsg_module_parameters fsg_mod_data = { .stall = 1 };
+#ifdef CONFIG_USB_GADGET_DEBUG_FILES
+
+static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS;
+
+#else
+
+/*
+ * Number of buffers we will use.
+ * 2 is usually enough for good buffering pipeline
+ */
+#define fsg_num_buffers	CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS
+
+#endif /* CONFIG_USB_DEBUG */
+
 FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data);
 
 static struct fsg_common fsg_common;
@@ -294,7 +308,8 @@ static int __ref multi_bind(struct usb_composite_dev *cdev)
 	/* set up mass storage function */
 	{
 		void *retp;
-		retp = fsg_common_from_params(&fsg_common, cdev, &fsg_mod_data);
+		retp = fsg_common_from_params(&fsg_common, cdev, &fsg_mod_data,
+					      fsg_num_buffers);
 		if (IS_ERR(retp)) {
 			status = PTR_ERR(retp);
 			goto fail1;
diff --git a/drivers/usb/gadget/storage_common.c b/drivers/usb/gadget/storage_common.c
index 08a1a3210a21..3e2500f19140 100644
--- a/drivers/usb/gadget/storage_common.c
+++ b/drivers/usb/gadget/storage_common.c
@@ -23,242 +23,22 @@
  * The valid range of num_buffers is: num >= 2 && num <= 4.
  */
 
+#include <linux/module.h>
+#include <linux/blkdev.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/usb/composite.h>
 
-#include <linux/usb/storage.h>
-#include <scsi/scsi.h>
-#include <asm/unaligned.h>
-
-
-/*
- * Thanks to NetChip Technologies for donating this product ID.
- *
- * DO NOT REUSE THESE IDs with any other driver!!  Ever!!
- * Instead:  allocate your own, using normal USB-IF procedures.
- */
-#define FSG_VENDOR_ID	0x0525	/* NetChip */
-#define FSG_PRODUCT_ID	0xa4a5	/* Linux-USB File-backed Storage Gadget */
-
-
-/*-------------------------------------------------------------------------*/
-
-
-#ifndef DEBUG
-#undef VERBOSE_DEBUG
-#undef DUMP_MSGS
-#endif /* !DEBUG */
-
-#ifdef VERBOSE_DEBUG
-#define VLDBG	LDBG
-#else
-#define VLDBG(lun, fmt, args...) do { } while (0)
-#endif /* VERBOSE_DEBUG */
-
-#define LDBG(lun, fmt, args...)   dev_dbg (&(lun)->dev, fmt, ## args)
-#define LERROR(lun, fmt, args...) dev_err (&(lun)->dev, fmt, ## args)
-#define LWARN(lun, fmt, args...)  dev_warn(&(lun)->dev, fmt, ## args)
-#define LINFO(lun, fmt, args...)  dev_info(&(lun)->dev, fmt, ## args)
-
-
-#ifdef DUMP_MSGS
-
-#  define dump_msg(fsg, /* const char * */ label,			\
-		   /* const u8 * */ buf, /* unsigned */ length) do {	\
-	if (length < 512) {						\
-		DBG(fsg, "%s, length %u:\n", label, length);		\
-		print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET,	\
-			       16, 1, buf, length, 0);			\
-	}								\
-} while (0)
-
-#  define dump_cdb(fsg) do { } while (0)
-
-#else
-
-#  define dump_msg(fsg, /* const char * */ label, \
-		   /* const u8 * */ buf, /* unsigned */ length) do { } while (0)
-
-#  ifdef VERBOSE_DEBUG
-
-#    define dump_cdb(fsg)						\
-	print_hex_dump(KERN_DEBUG, "SCSI CDB: ", DUMP_PREFIX_NONE,	\
-		       16, 1, (fsg)->cmnd, (fsg)->cmnd_size, 0)		\
-
-#  else
-
-#    define dump_cdb(fsg) do { } while (0)
-
-#  endif /* VERBOSE_DEBUG */
-
-#endif /* DUMP_MSGS */
-
-/*-------------------------------------------------------------------------*/
-
-/* Length of a SCSI Command Data Block */
-#define MAX_COMMAND_SIZE	16
-
-/* SCSI Sense Key/Additional Sense Code/ASC Qualifier values */
-#define SS_NO_SENSE				0
-#define SS_COMMUNICATION_FAILURE		0x040800
-#define SS_INVALID_COMMAND			0x052000
-#define SS_INVALID_FIELD_IN_CDB			0x052400
-#define SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE	0x052100
-#define SS_LOGICAL_UNIT_NOT_SUPPORTED		0x052500
-#define SS_MEDIUM_NOT_PRESENT			0x023a00
-#define SS_MEDIUM_REMOVAL_PREVENTED		0x055302
-#define SS_NOT_READY_TO_READY_TRANSITION	0x062800
-#define SS_RESET_OCCURRED			0x062900
-#define SS_SAVING_PARAMETERS_NOT_SUPPORTED	0x053900
-#define SS_UNRECOVERED_READ_ERROR		0x031100
-#define SS_WRITE_ERROR				0x030c02
-#define SS_WRITE_PROTECTED			0x072700
-
-#define SK(x)		((u8) ((x) >> 16))	/* Sense Key byte, etc. */
-#define ASC(x)		((u8) ((x) >> 8))
-#define ASCQ(x)		((u8) (x))
-
-
-/*-------------------------------------------------------------------------*/
-
-
-struct fsg_lun {
-	struct file	*filp;
-	loff_t		file_length;
-	loff_t		num_sectors;
-
-	unsigned int	initially_ro:1;
-	unsigned int	ro:1;
-	unsigned int	removable:1;
-	unsigned int	cdrom:1;
-	unsigned int	prevent_medium_removal:1;
-	unsigned int	registered:1;
-	unsigned int	info_valid:1;
-	unsigned int	nofua:1;
-
-	u32		sense_data;
-	u32		sense_data_info;
-	u32		unit_attention_data;
-
-	unsigned int	blkbits;	/* Bits of logical block size of bound block device */
-	unsigned int	blksize;	/* logical block size of bound block device */
-	struct device	dev;
-};
-
-static inline bool fsg_lun_is_open(struct fsg_lun *curlun)
-{
-	return curlun->filp != NULL;
-}
+#include "storage_common.h"
 
 static inline struct fsg_lun *fsg_lun_from_dev(struct device *dev)
 {
 	return container_of(dev, struct fsg_lun, dev);
 }
 
-
-/* Big enough to hold our biggest descriptor */
-#define EP0_BUFSIZE	256
-#define DELAYED_STATUS	(EP0_BUFSIZE + 999)	/* An impossibly large value */
-
-#ifdef CONFIG_USB_GADGET_DEBUG_FILES
-
-static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS;
-module_param_named(num_buffers, fsg_num_buffers, uint, S_IRUGO);
-MODULE_PARM_DESC(num_buffers, "Number of pipeline buffers");
-
-#else
-
-/*
- * Number of buffers we will use.
- * 2 is usually enough for good buffering pipeline
- */
-#define fsg_num_buffers	CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS
-
-#endif /* CONFIG_USB_GADGET_DEBUG_FILES */
-
-/* check if fsg_num_buffers is within a valid range */
-static inline int fsg_num_buffers_validate(void)
-{
-	if (fsg_num_buffers >= 2 && fsg_num_buffers <= 4)
-		return 0;
-	pr_err("fsg_num_buffers %u is out of range (%d to %d)\n",
-	       fsg_num_buffers, 2 ,4);
-	return -EINVAL;
-}
-
-/* Default size of buffer length. */
-#define FSG_BUFLEN	((u32)16384)
-
-/* Maximal number of LUNs supported in mass storage function */
-#define FSG_MAX_LUNS	8
-
-enum fsg_buffer_state {
-	BUF_STATE_EMPTY = 0,
-	BUF_STATE_FULL,
-	BUF_STATE_BUSY
-};
-
-struct fsg_buffhd {
-	void				*buf;
-	enum fsg_buffer_state		state;
-	struct fsg_buffhd		*next;
-
-	/*
-	 * The NetChip 2280 is faster, and handles some protocol faults
-	 * better, if we don't submit any short bulk-out read requests.
-	 * So we will record the intended request length here.
-	 */
-	unsigned int			bulk_out_intended_length;
-
-	struct usb_request		*inreq;
-	int				inreq_busy;
-	struct usb_request		*outreq;
-	int				outreq_busy;
-};
-
-enum fsg_state {
-	/* This one isn't used anywhere */
-	FSG_STATE_COMMAND_PHASE = -10,
-	FSG_STATE_DATA_PHASE,
-	FSG_STATE_STATUS_PHASE,
-
-	FSG_STATE_IDLE = 0,
-	FSG_STATE_ABORT_BULK_OUT,
-	FSG_STATE_RESET,
-	FSG_STATE_INTERFACE_CHANGE,
-	FSG_STATE_CONFIG_CHANGE,
-	FSG_STATE_DISCONNECT,
-	FSG_STATE_EXIT,
-	FSG_STATE_TERMINATED
-};
-
-enum data_direction {
-	DATA_DIR_UNKNOWN = 0,
-	DATA_DIR_FROM_HOST,
-	DATA_DIR_TO_HOST,
-	DATA_DIR_NONE
-};
-
-
-/*-------------------------------------------------------------------------*/
-
-
-static inline u32 get_unaligned_be24(u8 *buf)
-{
-	return 0xffffff & (u32) get_unaligned_be32(buf - 1);
-}
-
-
-/*-------------------------------------------------------------------------*/
-
-
-enum {
-	FSG_STRING_INTERFACE
-};
-
-
 /* There is only one interface. */
 
-static struct usb_interface_descriptor
-fsg_intf_desc = {
+struct usb_interface_descriptor fsg_intf_desc = {
 	.bLength =		sizeof fsg_intf_desc,
 	.bDescriptorType =	USB_DT_INTERFACE,
 
@@ -268,14 +48,14 @@ fsg_intf_desc = {
 	.bInterfaceProtocol =	USB_PR_BULK,	/* Adjusted during fsg_bind() */
 	.iInterface =		FSG_STRING_INTERFACE,
 };
+EXPORT_SYMBOL(fsg_intf_desc);
 
 /*
  * Three full-speed endpoint descriptors: bulk-in, bulk-out, and
  * interrupt-in.
  */
 
-static struct usb_endpoint_descriptor
-fsg_fs_bulk_in_desc = {
+struct usb_endpoint_descriptor fsg_fs_bulk_in_desc = {
 	.bLength =		USB_DT_ENDPOINT_SIZE,
 	.bDescriptorType =	USB_DT_ENDPOINT,
 
@@ -283,9 +63,9 @@ fsg_fs_bulk_in_desc = {
 	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
 	/* wMaxPacketSize set by autoconfiguration */
 };
+EXPORT_SYMBOL(fsg_fs_bulk_in_desc);
 
-static struct usb_endpoint_descriptor
-fsg_fs_bulk_out_desc = {
+struct usb_endpoint_descriptor fsg_fs_bulk_out_desc = {
 	.bLength =		USB_DT_ENDPOINT_SIZE,
 	.bDescriptorType =	USB_DT_ENDPOINT,
 
@@ -293,13 +73,15 @@ fsg_fs_bulk_out_desc = {
 	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
 	/* wMaxPacketSize set by autoconfiguration */
 };
+EXPORT_SYMBOL(fsg_fs_bulk_out_desc);
 
-static struct usb_descriptor_header *fsg_fs_function[] = {
+struct usb_descriptor_header *fsg_fs_function[] = {
 	(struct usb_descriptor_header *) &fsg_intf_desc,
 	(struct usb_descriptor_header *) &fsg_fs_bulk_in_desc,
 	(struct usb_descriptor_header *) &fsg_fs_bulk_out_desc,
 	NULL,
 };
+EXPORT_SYMBOL(fsg_fs_function);
 
 
 /*
@@ -310,8 +92,7 @@ static struct usb_descriptor_header *fsg_fs_function[] = {
  * and a "device qualifier" ... plus more construction options
  * for the configuration descriptor.
  */
-static struct usb_endpoint_descriptor
-fsg_hs_bulk_in_desc = {
+struct usb_endpoint_descriptor fsg_hs_bulk_in_desc = {
 	.bLength =		USB_DT_ENDPOINT_SIZE,
 	.bDescriptorType =	USB_DT_ENDPOINT,
 
@@ -319,9 +100,9 @@ fsg_hs_bulk_in_desc = {
 	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
 	.wMaxPacketSize =	cpu_to_le16(512),
 };
+EXPORT_SYMBOL(fsg_hs_bulk_in_desc);
 
-static struct usb_endpoint_descriptor
-fsg_hs_bulk_out_desc = {
+struct usb_endpoint_descriptor fsg_hs_bulk_out_desc = {
 	.bLength =		USB_DT_ENDPOINT_SIZE,
 	.bDescriptorType =	USB_DT_ENDPOINT,
 
@@ -330,17 +111,18 @@ fsg_hs_bulk_out_desc = {
 	.wMaxPacketSize =	cpu_to_le16(512),
 	.bInterval =		1,	/* NAK every 1 uframe */
 };
+EXPORT_SYMBOL(fsg_hs_bulk_out_desc);
 
 
-static struct usb_descriptor_header *fsg_hs_function[] = {
+struct usb_descriptor_header *fsg_hs_function[] = {
 	(struct usb_descriptor_header *) &fsg_intf_desc,
 	(struct usb_descriptor_header *) &fsg_hs_bulk_in_desc,
 	(struct usb_descriptor_header *) &fsg_hs_bulk_out_desc,
 	NULL,
 };
+EXPORT_SYMBOL(fsg_hs_function);
 
-static struct usb_endpoint_descriptor
-fsg_ss_bulk_in_desc = {
+struct usb_endpoint_descriptor fsg_ss_bulk_in_desc = {
 	.bLength =		USB_DT_ENDPOINT_SIZE,
 	.bDescriptorType =	USB_DT_ENDPOINT,
 
@@ -348,16 +130,17 @@ fsg_ss_bulk_in_desc = {
 	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
 	.wMaxPacketSize =	cpu_to_le16(1024),
 };
+EXPORT_SYMBOL(fsg_ss_bulk_in_desc);
 
-static struct usb_ss_ep_comp_descriptor fsg_ss_bulk_in_comp_desc = {
+struct usb_ss_ep_comp_descriptor fsg_ss_bulk_in_comp_desc = {
 	.bLength =		sizeof(fsg_ss_bulk_in_comp_desc),
 	.bDescriptorType =	USB_DT_SS_ENDPOINT_COMP,
 
 	/*.bMaxBurst =		DYNAMIC, */
 };
+EXPORT_SYMBOL(fsg_ss_bulk_in_comp_desc);
 
-static struct usb_endpoint_descriptor
-fsg_ss_bulk_out_desc = {
+struct usb_endpoint_descriptor fsg_ss_bulk_out_desc = {
 	.bLength =		USB_DT_ENDPOINT_SIZE,
 	.bDescriptorType =	USB_DT_ENDPOINT,
 
@@ -365,15 +148,17 @@ fsg_ss_bulk_out_desc = {
 	.bmAttributes =		USB_ENDPOINT_XFER_BULK,
 	.wMaxPacketSize =	cpu_to_le16(1024),
 };
+EXPORT_SYMBOL(fsg_ss_bulk_out_desc);
 
-static struct usb_ss_ep_comp_descriptor fsg_ss_bulk_out_comp_desc = {
+struct usb_ss_ep_comp_descriptor fsg_ss_bulk_out_comp_desc = {
 	.bLength =		sizeof(fsg_ss_bulk_in_comp_desc),
 	.bDescriptorType =	USB_DT_SS_ENDPOINT_COMP,
 
 	/*.bMaxBurst =		DYNAMIC, */
 };
+EXPORT_SYMBOL(fsg_ss_bulk_out_comp_desc);
 
-static struct usb_descriptor_header *fsg_ss_function[] = {
+struct usb_descriptor_header *fsg_ss_function[] = {
 	(struct usb_descriptor_header *) &fsg_intf_desc,
 	(struct usb_descriptor_header *) &fsg_ss_bulk_in_desc,
 	(struct usb_descriptor_header *) &fsg_ss_bulk_in_comp_desc,
@@ -381,17 +166,7 @@ static struct usb_descriptor_header *fsg_ss_function[] = {
 	(struct usb_descriptor_header *) &fsg_ss_bulk_out_comp_desc,
 	NULL,
 };
-
-/* Static strings, in UTF-8 (for simplicity we use only ASCII characters) */
-static struct usb_string		fsg_strings[] = {
-	{FSG_STRING_INTERFACE,		fsg_string_interface},
-	{}
-};
-
-static struct usb_gadget_strings	fsg_stringtab = {
-	.language	= 0x0409,		/* en-us */
-	.strings	= fsg_strings,
-};
+EXPORT_SYMBOL(fsg_ss_function);
 
 
  /*-------------------------------------------------------------------------*/
@@ -401,7 +176,7 @@ static struct usb_gadget_strings	fsg_stringtab = {
  * the caller must own fsg->filesem for writing.
  */
 
-static void fsg_lun_close(struct fsg_lun *curlun)
+void fsg_lun_close(struct fsg_lun *curlun)
 {
 	if (curlun->filp) {
 		LDBG(curlun, "close backing file\n");
@@ -409,9 +184,9 @@ static void fsg_lun_close(struct fsg_lun *curlun)
 		curlun->filp = NULL;
 	}
 }
+EXPORT_SYMBOL(fsg_lun_close);
 
-
-static int fsg_lun_open(struct fsg_lun *curlun, const char *filename)
+int fsg_lun_open(struct fsg_lun *curlun, const char *filename)
 {
 	int				ro;
 	struct file			*filp = NULL;
@@ -508,6 +283,7 @@ out:
 	fput(filp);
 	return rc;
 }
+EXPORT_SYMBOL(fsg_lun_open);
 
 
 /*-------------------------------------------------------------------------*/
@@ -516,7 +292,7 @@ out:
  * Sync the file data, don't bother with the metadata.
  * This code was copied from fs/buffer.c:sys_fdatasync().
  */
-static int fsg_lun_fsync_sub(struct fsg_lun *curlun)
+int fsg_lun_fsync_sub(struct fsg_lun *curlun)
 {
 	struct file	*filp = curlun->filp;
 
@@ -524,8 +300,9 @@ static int fsg_lun_fsync_sub(struct fsg_lun *curlun)
 		return 0;
 	return vfs_fsync(filp, 1);
 }
+EXPORT_SYMBOL(fsg_lun_fsync_sub);
 
-static void store_cdrom_address(u8 *dest, int msf, u32 addr)
+void store_cdrom_address(u8 *dest, int msf, u32 addr)
 {
 	if (msf) {
 		/* Convert to Minutes-Seconds-Frames */
@@ -542,13 +319,13 @@ static void store_cdrom_address(u8 *dest, int msf, u32 addr)
 		put_unaligned_be32(addr, dest);
 	}
 }
-
+EXPORT_SYMBOL(store_cdrom_address);
 
 /*-------------------------------------------------------------------------*/
 
 
-static ssize_t ro_show(struct device *dev, struct device_attribute *attr,
-		       char *buf)
+ssize_t fsg_show_ro(struct device *dev, struct device_attribute *attr,
+		    char *buf)
 {
 	struct fsg_lun	*curlun = fsg_lun_from_dev(dev);
 
@@ -556,17 +333,19 @@ static ssize_t ro_show(struct device *dev, struct device_attribute *attr,
 				  ? curlun->ro
 				  : curlun->initially_ro);
 }
+EXPORT_SYMBOL(fsg_show_ro);
 
-static ssize_t nofua_show(struct device *dev, struct device_attribute *attr,
-			  char *buf)
+ssize_t fsg_show_nofua(struct device *dev, struct device_attribute *attr,
+		       char *buf)
 {
 	struct fsg_lun	*curlun = fsg_lun_from_dev(dev);
 
 	return sprintf(buf, "%u\n", curlun->nofua);
 }
+EXPORT_SYMBOL(fsg_show_nofua);
 
-static ssize_t file_show(struct device *dev, struct device_attribute *attr,
-			 char *buf)
+ssize_t fsg_show_file(struct device *dev, struct device_attribute *attr,
+		      char *buf)
 {
 	struct fsg_lun	*curlun = fsg_lun_from_dev(dev);
 	struct rw_semaphore	*filesem = dev_get_drvdata(dev);
@@ -591,10 +370,11 @@ static ssize_t file_show(struct device *dev, struct device_attribute *attr,
 	up_read(filesem);
 	return rc;
 }
+EXPORT_SYMBOL(fsg_show_file);
 
 
-static ssize_t ro_store(struct device *dev, struct device_attribute *attr,
-			const char *buf, size_t count)
+ssize_t fsg_store_ro(struct device *dev, struct device_attribute *attr,
+		     const char *buf, size_t count)
 {
 	ssize_t		rc;
 	struct fsg_lun	*curlun = fsg_lun_from_dev(dev);
@@ -622,9 +402,10 @@ static ssize_t ro_store(struct device *dev, struct device_attribute *attr,
 	up_read(filesem);
 	return rc;
 }
+EXPORT_SYMBOL(fsg_store_ro);
 
-static ssize_t nofua_store(struct device *dev, struct device_attribute *attr,
-			   const char *buf, size_t count)
+ssize_t fsg_store_nofua(struct device *dev, struct device_attribute *attr,
+			const char *buf, size_t count)
 {
 	struct fsg_lun	*curlun = fsg_lun_from_dev(dev);
 	unsigned	nofua;
@@ -642,9 +423,10 @@ static ssize_t nofua_store(struct device *dev, struct device_attribute *attr,
 
 	return count;
 }
+EXPORT_SYMBOL(fsg_store_nofua);
 
-static ssize_t file_store(struct device *dev, struct device_attribute *attr,
-			  const char *buf, size_t count)
+ssize_t fsg_store_file(struct device *dev, struct device_attribute *attr,
+		       const char *buf, size_t count)
 {
 	struct fsg_lun	*curlun = fsg_lun_from_dev(dev);
 	struct rw_semaphore	*filesem = dev_get_drvdata(dev);
@@ -674,3 +456,6 @@ static ssize_t file_store(struct device *dev, struct device_attribute *attr,
 	up_write(filesem);
 	return (rc < 0 ? rc : count);
 }
+EXPORT_SYMBOL(fsg_store_file);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/usb/gadget/storage_common.h b/drivers/usb/gadget/storage_common.h
new file mode 100644
index 000000000000..1fcda2bfef6c
--- /dev/null
+++ b/drivers/usb/gadget/storage_common.h
@@ -0,0 +1,210 @@
+#ifndef USB_STORAGE_COMMON_H
+#define USB_STORAGE_COMMON_H
+
+#include <linux/device.h>
+#include <linux/usb/storage.h>
+#include <scsi/scsi.h>
+#include <asm/unaligned.h>
+
+#ifndef DEBUG
+#undef VERBOSE_DEBUG
+#undef DUMP_MSGS
+#endif /* !DEBUG */
+
+#ifdef VERBOSE_DEBUG
+#define VLDBG	LDBG
+#else
+#define VLDBG(lun, fmt, args...) do { } while (0)
+#endif /* VERBOSE_DEBUG */
+
+#define LDBG(lun, fmt, args...)   dev_dbg(&(lun)->dev, fmt, ## args)
+#define LERROR(lun, fmt, args...) dev_err(&(lun)->dev, fmt, ## args)
+#define LWARN(lun, fmt, args...)  dev_warn(&(lun)->dev, fmt, ## args)
+#define LINFO(lun, fmt, args...)  dev_info(&(lun)->dev, fmt, ## args)
+
+#ifdef DUMP_MSGS
+
+#  define dump_msg(fsg, /* const char * */ label,			\
+		   /* const u8 * */ buf, /* unsigned */ length)		\
+do {									\
+	if (length < 512) {						\
+		DBG(fsg, "%s, length %u:\n", label, length);		\
+		print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET,	\
+			       16, 1, buf, length, 0);			\
+	}								\
+} while (0)
+
+#  define dump_cdb(fsg) do { } while (0)
+
+#else
+
+#  define dump_msg(fsg, /* const char * */ label, \
+		   /* const u8 * */ buf, /* unsigned */ length) do { } while (0)
+
+#  ifdef VERBOSE_DEBUG
+
+#    define dump_cdb(fsg)						\
+	print_hex_dump(KERN_DEBUG, "SCSI CDB: ", DUMP_PREFIX_NONE,	\
+		       16, 1, (fsg)->cmnd, (fsg)->cmnd_size, 0)		\
+
+#  else
+
+#    define dump_cdb(fsg) do { } while (0)
+
+#  endif /* VERBOSE_DEBUG */
+
+#endif /* DUMP_MSGS */
+
+/* Length of a SCSI Command Data Block */
+#define MAX_COMMAND_SIZE	16
+
+/* SCSI Sense Key/Additional Sense Code/ASC Qualifier values */
+#define SS_NO_SENSE				0
+#define SS_COMMUNICATION_FAILURE		0x040800
+#define SS_INVALID_COMMAND			0x052000
+#define SS_INVALID_FIELD_IN_CDB			0x052400
+#define SS_LOGICAL_BLOCK_ADDRESS_OUT_OF_RANGE	0x052100
+#define SS_LOGICAL_UNIT_NOT_SUPPORTED		0x052500
+#define SS_MEDIUM_NOT_PRESENT			0x023a00
+#define SS_MEDIUM_REMOVAL_PREVENTED		0x055302
+#define SS_NOT_READY_TO_READY_TRANSITION	0x062800
+#define SS_RESET_OCCURRED			0x062900
+#define SS_SAVING_PARAMETERS_NOT_SUPPORTED	0x053900
+#define SS_UNRECOVERED_READ_ERROR		0x031100
+#define SS_WRITE_ERROR				0x030c02
+#define SS_WRITE_PROTECTED			0x072700
+
+#define SK(x)		((u8) ((x) >> 16))	/* Sense Key byte, etc. */
+#define ASC(x)		((u8) ((x) >> 8))
+#define ASCQ(x)		((u8) (x))
+
+struct fsg_lun {
+	struct file	*filp;
+	loff_t		file_length;
+	loff_t		num_sectors;
+
+	unsigned int	initially_ro:1;
+	unsigned int	ro:1;
+	unsigned int	removable:1;
+	unsigned int	cdrom:1;
+	unsigned int	prevent_medium_removal:1;
+	unsigned int	registered:1;
+	unsigned int	info_valid:1;
+	unsigned int	nofua:1;
+
+	u32		sense_data;
+	u32		sense_data_info;
+	u32		unit_attention_data;
+
+	unsigned int	blkbits; /* Bits of logical block size
+						       of bound block device */
+	unsigned int	blksize; /* logical block size of bound block device */
+	struct device	dev;
+};
+
+static inline bool fsg_lun_is_open(struct fsg_lun *curlun)
+{
+	return curlun->filp != NULL;
+}
+
+/* Big enough to hold our biggest descriptor */
+#define EP0_BUFSIZE	256
+#define DELAYED_STATUS	(EP0_BUFSIZE + 999)	/* An impossibly large value */
+
+/* Default size of buffer length. */
+#define FSG_BUFLEN	((u32)16384)
+
+/* Maximal number of LUNs supported in mass storage function */
+#define FSG_MAX_LUNS	8
+
+enum fsg_buffer_state {
+	BUF_STATE_EMPTY = 0,
+	BUF_STATE_FULL,
+	BUF_STATE_BUSY
+};
+
+struct fsg_buffhd {
+	void				*buf;
+	enum fsg_buffer_state		state;
+	struct fsg_buffhd		*next;
+
+	/*
+	 * The NetChip 2280 is faster, and handles some protocol faults
+	 * better, if we don't submit any short bulk-out read requests.
+	 * So we will record the intended request length here.
+	 */
+	unsigned int			bulk_out_intended_length;
+
+	struct usb_request		*inreq;
+	int				inreq_busy;
+	struct usb_request		*outreq;
+	int				outreq_busy;
+};
+
+enum fsg_state {
+	/* This one isn't used anywhere */
+	FSG_STATE_COMMAND_PHASE = -10,
+	FSG_STATE_DATA_PHASE,
+	FSG_STATE_STATUS_PHASE,
+
+	FSG_STATE_IDLE = 0,
+	FSG_STATE_ABORT_BULK_OUT,
+	FSG_STATE_RESET,
+	FSG_STATE_INTERFACE_CHANGE,
+	FSG_STATE_CONFIG_CHANGE,
+	FSG_STATE_DISCONNECT,
+	FSG_STATE_EXIT,
+	FSG_STATE_TERMINATED
+};
+
+enum data_direction {
+	DATA_DIR_UNKNOWN = 0,
+	DATA_DIR_FROM_HOST,
+	DATA_DIR_TO_HOST,
+	DATA_DIR_NONE
+};
+
+static inline u32 get_unaligned_be24(u8 *buf)
+{
+	return 0xffffff & (u32) get_unaligned_be32(buf - 1);
+}
+
+enum {
+	FSG_STRING_INTERFACE
+};
+
+extern struct usb_interface_descriptor fsg_intf_desc;
+
+extern struct usb_endpoint_descriptor fsg_fs_bulk_in_desc;
+extern struct usb_endpoint_descriptor fsg_fs_bulk_out_desc;
+extern struct usb_descriptor_header *fsg_fs_function[];
+
+extern struct usb_endpoint_descriptor fsg_hs_bulk_in_desc;
+extern struct usb_endpoint_descriptor fsg_hs_bulk_out_desc;
+extern struct usb_descriptor_header *fsg_hs_function[];
+
+extern struct usb_endpoint_descriptor fsg_ss_bulk_in_desc;
+extern struct usb_ss_ep_comp_descriptor fsg_ss_bulk_in_comp_desc;
+extern struct usb_endpoint_descriptor fsg_ss_bulk_out_desc;
+extern struct usb_ss_ep_comp_descriptor fsg_ss_bulk_out_comp_desc;
+extern struct usb_descriptor_header *fsg_ss_function[];
+
+void fsg_lun_close(struct fsg_lun *curlun);
+int fsg_lun_open(struct fsg_lun *curlun, const char *filename);
+int fsg_lun_fsync_sub(struct fsg_lun *curlun);
+void store_cdrom_address(u8 *dest, int msf, u32 addr);
+ssize_t fsg_show_ro(struct device *dev, struct device_attribute *attr,
+		    char *buf);
+ssize_t fsg_show_nofua(struct device *dev, struct device_attribute *attr,
+		       char *buf);
+ssize_t fsg_show_file(struct device *dev, struct device_attribute *attr,
+		      char *buf);
+ssize_t fsg_store_ro(struct device *dev, struct device_attribute *attr,
+		     const char *buf, size_t count);
+ssize_t fsg_store_nofua(struct device *dev,
+			struct device_attribute *attr,
+			const char *buf, size_t count);
+ssize_t fsg_store_file(struct device *dev, struct device_attribute *attr,
+		       const char *buf, size_t count);
+
+#endif /* USB_STORAGE_COMMON_H */
-- 
cgit 


From f3fed36749a1f9a948afdc3b21008e7f65e43220 Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Thu, 26 Sep 2013 14:38:17 +0200
Subject: usb: gadget: f_mass_storage: factor out a header file

In order to prepare for the new function interface the f_mass_storage.c
needs to be compiled as a module, and so a header file will be required.

This patch factors out some code to a new f_mass_storage.h.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/f_mass_storage.c | 117 ++-------------------------------
 drivers/usb/gadget/f_mass_storage.h | 126 ++++++++++++++++++++++++++++++++++++
 2 files changed, 133 insertions(+), 110 deletions(-)
 create mode 100644 drivers/usb/gadget/f_mass_storage.h

diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index def3426108b4..3cdd8359efda 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -229,6 +229,7 @@
 static const char fsg_string_interface[] = "Mass Storage";
 
 #include "storage_common.h"
+#include "f_mass_storage.h"
 
 /* Static strings, in UTF-8 (for simplicity we use only ASCII characters) */
 static struct usb_string		fsg_strings[] = {
@@ -246,18 +247,6 @@ static struct usb_gadget_strings	fsg_stringtab = {
 struct fsg_dev;
 struct fsg_common;
 
-/* FSF callback functions */
-struct fsg_operations {
-	/*
-	 * Callback function to call when thread exits.  If no
-	 * callback is set or it returns value lower then zero MSF
-	 * will force eject all LUNs it operates on (including those
-	 * marked as non-removable or with prevent_medium_removal flag
-	 * set).
-	 */
-	int (*thread_exits)(struct fsg_common *common);
-};
-
 /* Data shared by all the FSG instances. */
 struct fsg_common {
 	struct usb_gadget	*gadget;
@@ -324,28 +313,6 @@ struct fsg_common {
 	struct kref		ref;
 };
 
-struct fsg_config {
-	unsigned nluns;
-	struct fsg_lun_config {
-		const char *filename;
-		char ro;
-		char removable;
-		char cdrom;
-		char nofua;
-	} luns[FSG_MAX_LUNS];
-
-	/* Callback functions. */
-	const struct fsg_operations	*ops;
-	/* Gadget's private data. */
-	void			*private_data;
-
-	const char *vendor_name;		/*  8 characters or less */
-	const char *product_name;		/* 16 characters or less */
-
-	char			can_stall;
-	unsigned int		fsg_num_buffers;
-};
-
 struct fsg_dev {
 	struct usb_function	function;
 	struct usb_gadget	*gadget;	/* Copy of cdev->gadget */
@@ -2644,12 +2611,12 @@ static void fsg_lun_release(struct device *dev)
 	/* Nothing needs to be done */
 }
 
-static inline void fsg_common_get(struct fsg_common *common)
+void fsg_common_get(struct fsg_common *common)
 {
 	kref_get(&common->ref);
 }
 
-static inline void fsg_common_put(struct fsg_common *common)
+void fsg_common_put(struct fsg_common *common)
 {
 	kref_put(&common->ref, fsg_common_release);
 }
@@ -2664,9 +2631,9 @@ static inline int fsg_num_buffers_validate(unsigned int fsg_num_buffers)
 	return -EINVAL;
 }
 
-static struct fsg_common *fsg_common_init(struct fsg_common *common,
-					  struct usb_composite_dev *cdev,
-					  struct fsg_config *cfg)
+struct fsg_common *fsg_common_init(struct fsg_common *common,
+				   struct usb_composite_dev *cdev,
+				   struct fsg_config *cfg)
 {
 	struct usb_gadget *gadget = cdev->gadget;
 	struct fsg_buffhd *bh;
@@ -3043,62 +3010,8 @@ static int fsg_bind_config(struct usb_composite_dev *cdev,
 
 /************************* Module parameters *************************/
 
-struct fsg_module_parameters {
-	char		*file[FSG_MAX_LUNS];
-	bool		ro[FSG_MAX_LUNS];
-	bool		removable[FSG_MAX_LUNS];
-	bool		cdrom[FSG_MAX_LUNS];
-	bool		nofua[FSG_MAX_LUNS];
-
-	unsigned int	file_count, ro_count, removable_count, cdrom_count;
-	unsigned int	nofua_count;
-	unsigned int	luns;	/* nluns */
-	bool		stall;	/* can_stall */
-};
-
-#define _FSG_MODULE_PARAM_ARRAY(prefix, params, name, type, desc)	\
-	module_param_array_named(prefix ## name, params.name, type,	\
-				 &prefix ## params.name ## _count,	\
-				 S_IRUGO);				\
-	MODULE_PARM_DESC(prefix ## name, desc)
-
-#define _FSG_MODULE_PARAM(prefix, params, name, type, desc)		\
-	module_param_named(prefix ## name, params.name, type,		\
-			   S_IRUGO);					\
-	MODULE_PARM_DESC(prefix ## name, desc)
-
-#define __FSG_MODULE_PARAMETERS(prefix, params)				\
-	_FSG_MODULE_PARAM_ARRAY(prefix, params, file, charp,		\
-				"names of backing files or devices");	\
-	_FSG_MODULE_PARAM_ARRAY(prefix, params, ro, bool,		\
-				"true to force read-only");		\
-	_FSG_MODULE_PARAM_ARRAY(prefix, params, removable, bool,	\
-				"true to simulate removable media");	\
-	_FSG_MODULE_PARAM_ARRAY(prefix, params, cdrom, bool,		\
-				"true to simulate CD-ROM instead of disk"); \
-	_FSG_MODULE_PARAM_ARRAY(prefix, params, nofua, bool,		\
-				"true to ignore SCSI WRITE(10,12) FUA bit"); \
-	_FSG_MODULE_PARAM(prefix, params, luns, uint,			\
-			  "number of LUNs");				\
-	_FSG_MODULE_PARAM(prefix, params, stall, bool,			\
-			  "false to prevent bulk stalls")
-
-#ifdef CONFIG_USB_GADGET_DEBUG_FILES
-
-#define FSG_MODULE_PARAMETERS(prefix, params)				\
-	__FSG_MODULE_PARAMETERS(prefix, params);			\
-	module_param_named(num_buffers, fsg_num_buffers, uint, S_IRUGO);\
-	MODULE_PARM_DESC(num_buffers, "Number of pipeline buffers")
-#else
-
-#define FSG_MODULE_PARAMETERS(prefix, params)				\
-	__FSG_MODULE_PARAMETERS(prefix, params)
-
-#endif
-
 
-static void
-fsg_config_from_params(struct fsg_config *cfg,
+void fsg_config_from_params(struct fsg_config *cfg,
 		       const struct fsg_module_parameters *params,
 		       unsigned int fsg_num_buffers)
 {
@@ -3131,19 +3044,3 @@ fsg_config_from_params(struct fsg_config *cfg,
 	cfg->fsg_num_buffers = fsg_num_buffers;
 }
 
-static inline struct fsg_common *
-fsg_common_from_params(struct fsg_common *common,
-		       struct usb_composite_dev *cdev,
-		       const struct fsg_module_parameters *params,
-		       unsigned int fsg_num_buffers)
-	__attribute__((unused));
-static inline struct fsg_common *
-fsg_common_from_params(struct fsg_common *common,
-		       struct usb_composite_dev *cdev,
-		       const struct fsg_module_parameters *params,
-		       unsigned int fsg_num_buffers)
-{
-	struct fsg_config cfg;
-	fsg_config_from_params(&cfg, params, fsg_num_buffers);
-	return fsg_common_init(common, cdev, &cfg);
-}
diff --git a/drivers/usb/gadget/f_mass_storage.h b/drivers/usb/gadget/f_mass_storage.h
new file mode 100644
index 000000000000..b64761d836f6
--- /dev/null
+++ b/drivers/usb/gadget/f_mass_storage.h
@@ -0,0 +1,126 @@
+#ifndef USB_F_MASS_STORAGE_H
+#define USB_F_MASS_STORAGE_H
+
+#include "storage_common.h"
+
+struct fsg_module_parameters {
+	char		*file[FSG_MAX_LUNS];
+	bool		ro[FSG_MAX_LUNS];
+	bool		removable[FSG_MAX_LUNS];
+	bool		cdrom[FSG_MAX_LUNS];
+	bool		nofua[FSG_MAX_LUNS];
+
+	unsigned int	file_count, ro_count, removable_count, cdrom_count;
+	unsigned int	nofua_count;
+	unsigned int	luns;	/* nluns */
+	bool		stall;	/* can_stall */
+};
+
+#define _FSG_MODULE_PARAM_ARRAY(prefix, params, name, type, desc)	\
+	module_param_array_named(prefix ## name, params.name, type,	\
+				 &prefix ## params.name ## _count,	\
+				 S_IRUGO);				\
+	MODULE_PARM_DESC(prefix ## name, desc)
+
+#define _FSG_MODULE_PARAM(prefix, params, name, type, desc)		\
+	module_param_named(prefix ## name, params.name, type,		\
+			   S_IRUGO);					\
+	MODULE_PARM_DESC(prefix ## name, desc)
+
+#define __FSG_MODULE_PARAMETERS(prefix, params)				\
+	_FSG_MODULE_PARAM_ARRAY(prefix, params, file, charp,		\
+				"names of backing files or devices");	\
+	_FSG_MODULE_PARAM_ARRAY(prefix, params, ro, bool,		\
+				"true to force read-only");		\
+	_FSG_MODULE_PARAM_ARRAY(prefix, params, removable, bool,	\
+				"true to simulate removable media");	\
+	_FSG_MODULE_PARAM_ARRAY(prefix, params, cdrom, bool,		\
+				"true to simulate CD-ROM instead of disk"); \
+	_FSG_MODULE_PARAM_ARRAY(prefix, params, nofua, bool,		\
+				"true to ignore SCSI WRITE(10,12) FUA bit"); \
+	_FSG_MODULE_PARAM(prefix, params, luns, uint,			\
+			  "number of LUNs");				\
+	_FSG_MODULE_PARAM(prefix, params, stall, bool,			\
+			  "false to prevent bulk stalls")
+
+#ifdef CONFIG_USB_GADGET_DEBUG_FILES
+
+#define FSG_MODULE_PARAMETERS(prefix, params)				\
+	__FSG_MODULE_PARAMETERS(prefix, params);			\
+	module_param_named(num_buffers, fsg_num_buffers, uint, S_IRUGO);\
+	MODULE_PARM_DESC(num_buffers, "Number of pipeline buffers")
+#else
+
+#define FSG_MODULE_PARAMETERS(prefix, params)				\
+	__FSG_MODULE_PARAMETERS(prefix, params)
+
+#endif
+
+struct fsg_common;
+
+/* FSF callback functions */
+struct fsg_operations {
+	/*
+	 * Callback function to call when thread exits.  If no
+	 * callback is set or it returns value lower then zero MSF
+	 * will force eject all LUNs it operates on (including those
+	 * marked as non-removable or with prevent_medium_removal flag
+	 * set).
+	 */
+	int (*thread_exits)(struct fsg_common *common);
+};
+
+struct fsg_lun_config {
+	const char *filename;
+	char ro;
+	char removable;
+	char cdrom;
+	char nofua;
+};
+
+struct fsg_config {
+	unsigned nluns;
+	struct fsg_lun_config luns[FSG_MAX_LUNS];
+
+	/* Callback functions. */
+	const struct fsg_operations	*ops;
+	/* Gadget's private data. */
+	void			*private_data;
+
+	const char *vendor_name;		/*  8 characters or less */
+	const char *product_name;		/* 16 characters or less */
+
+	char			can_stall;
+	unsigned int		fsg_num_buffers;
+};
+
+void fsg_common_get(struct fsg_common *common);
+
+void fsg_common_put(struct fsg_common *common);
+
+struct fsg_common *fsg_common_init(struct fsg_common *common,
+				   struct usb_composite_dev *cdev,
+				   struct fsg_config *cfg);
+
+void fsg_config_from_params(struct fsg_config *cfg,
+			    const struct fsg_module_parameters *params,
+			    unsigned int fsg_num_buffers);
+
+static inline struct fsg_common *
+fsg_common_from_params(struct fsg_common *common,
+		       struct usb_composite_dev *cdev,
+		       const struct fsg_module_parameters *params,
+		       unsigned int fsg_num_buffers)
+	__attribute__((unused));
+static inline struct fsg_common *
+fsg_common_from_params(struct fsg_common *common,
+		       struct usb_composite_dev *cdev,
+		       const struct fsg_module_parameters *params,
+		       unsigned int fsg_num_buffers)
+{
+	struct fsg_config cfg;
+	fsg_config_from_params(&cfg, params, fsg_num_buffers);
+	return fsg_common_init(common, cdev, &cfg);
+}
+
+#endif /* USB_F_MASS_STORAGE_H */
-- 
cgit 


From 8b903fd7f97cdeb2cd927853025e9a667379a434 Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Thu, 26 Sep 2013 14:38:18 +0200
Subject: usb: gadget: f_mass_storage: add a level of indirection for luns
 storage

This is needed to prepare for configfs integration.

So far the luns have been allocated during gadget's initialization, based
on the nluns module parameter's value; the exact number is known when the
gadget is initialized and that number of luns is allocated in one go; they
all will be used.

When configfs is in place, the luns will be created one-by-one by the user.
Once the user is satisfied with the number of luns, they activate the
gadget. The number of luns must be <= FSG_MAX_LUN (currently 8), but other
than that it is not known up front and the user need not use contiguous
numbering (apart from the default lun #0). On the other hand, the function
code uses lun numbers to identify them and the number needs to be used
as an index into an array.

Given the above, an array needs to be allocated, but it might happen that
7 out of its 8 elements will not be used. On my machine
sizeof(struct fsg_lun) == 462, so > 3k of memory is allocated but not used
in the worst case.

By adding another level of indirection (allocating an array of pointers
to struct fsg_lun and then allocating individual luns instead of an array
of struct fsg_luns) at most 7 pointers are wasted, which is much less.

This patch also changes some for/while loops to cope with the fact
that in the luns array some entries are potentially empty.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/f_mass_storage.c | 60 +++++++++++++++++++++++++------------
 1 file changed, 41 insertions(+), 19 deletions(-)

diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 3cdd8359efda..6b6c7f1b773f 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -274,7 +274,7 @@ struct fsg_common {
 
 	unsigned int		nluns;
 	unsigned int		lun;
-	struct fsg_lun		*luns;
+	struct fsg_lun		**luns;
 	struct fsg_lun		*curlun;
 
 	unsigned int		bulk_out_maxpacket;
@@ -2151,7 +2151,7 @@ static int received_cbw(struct fsg_dev *fsg, struct fsg_buffhd *bh)
 		common->data_dir = DATA_DIR_NONE;
 	common->lun = cbw->Lun;
 	if (common->lun < common->nluns)
-		common->curlun = &common->luns[common->lun];
+		common->curlun = common->luns[common->lun];
 	else
 		common->curlun = NULL;
 	common->tag = cbw->Tag;
@@ -2299,7 +2299,9 @@ reset:
 
 	common->running = 1;
 	for (i = 0; i < common->nluns; ++i)
-		common->luns[i].unit_attention_data = SS_RESET_OCCURRED;
+		if (common->luns[i])
+			common->luns[i]->unit_attention_data =
+				SS_RESET_OCCURRED;
 	return rc;
 }
 
@@ -2399,7 +2401,9 @@ static void handle_exception(struct fsg_common *common)
 		common->state = FSG_STATE_STATUS_PHASE;
 	else {
 		for (i = 0; i < common->nluns; ++i) {
-			curlun = &common->luns[i];
+			curlun = common->luns[i];
+			if (!curlun)
+				continue;
 			curlun->prevent_medium_removal = 0;
 			curlun->sense_data = SS_NO_SENSE;
 			curlun->unit_attention_data = SS_NO_SENSE;
@@ -2441,8 +2445,9 @@ static void handle_exception(struct fsg_common *common)
 		 * CONFIG_CHANGE cases.
 		 */
 		/* for (i = 0; i < common->nluns; ++i) */
-		/*	common->luns[i].unit_attention_data = */
-		/*		SS_RESET_OCCURRED;  */
+		/*	if (common->luns[i]) */
+		/*		common->luns[i]->unit_attention_data = */
+		/*			SS_RESET_OCCURRED;  */
 		break;
 
 	case FSG_STATE_CONFIG_CHANGE:
@@ -2538,12 +2543,13 @@ static int fsg_main_thread(void *common_)
 
 	if (!common->ops || !common->ops->thread_exits
 	 || common->ops->thread_exits(common) < 0) {
-		struct fsg_lun *curlun = common->luns;
+		struct fsg_lun **curlun_it = common->luns;
 		unsigned i = common->nluns;
 
 		down_write(&common->filesem);
-		for (; i--; ++curlun) {
-			if (!fsg_lun_is_open(curlun))
+		for (; i--; ++curlun_it) {
+			struct fsg_lun *curlun = *curlun_it;
+			if (!curlun || !fsg_lun_is_open(curlun))
 				continue;
 
 			fsg_lun_close(curlun);
@@ -2637,7 +2643,7 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 {
 	struct usb_gadget *gadget = cdev->gadget;
 	struct fsg_buffhd *bh;
-	struct fsg_lun *curlun;
+	struct fsg_lun **curlun_it;
 	struct fsg_lun_config *lcfg;
 	int nluns, i, rc;
 	char *pathbuf;
@@ -2694,16 +2700,26 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 	 * Create the LUNs, open their backing files, and register the
 	 * LUN devices in sysfs.
 	 */
-	curlun = kcalloc(nluns, sizeof(*curlun), GFP_KERNEL);
-	if (unlikely(!curlun)) {
+	curlun_it = kcalloc(nluns, sizeof(*curlun_it), GFP_KERNEL);
+	if (unlikely(!curlun_it)) {
 		rc = -ENOMEM;
 		goto error_release;
 	}
-	common->luns = curlun;
+	common->luns = curlun_it;
 
 	init_rwsem(&common->filesem);
 
-	for (i = 0, lcfg = cfg->luns; i < nluns; ++i, ++curlun, ++lcfg) {
+	for (i = 0, lcfg = cfg->luns; i < nluns; ++i, ++curlun_it, ++lcfg) {
+		struct fsg_lun *curlun;
+
+		curlun = kzalloc(sizeof(*curlun), GFP_KERNEL);
+		if (!curlun) {
+			rc = -ENOMEM;
+			common->nluns = i;
+			goto error_release;
+		}
+		*curlun_it = curlun;
+
 		curlun->cdrom = !!lcfg->cdrom;
 		curlun->ro = lcfg->cdrom || lcfg->ro;
 		curlun->initially_ro = curlun->ro;
@@ -2719,6 +2735,7 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 			INFO(common, "failed to register LUN%d: %d\n", i, rc);
 			common->nluns = i;
 			put_device(&curlun->dev);
+			kfree(curlun);
 			goto error_release;
 		}
 
@@ -2771,7 +2788,7 @@ buffhds_first_it:
 	snprintf(common->inquiry_string, sizeof common->inquiry_string,
 		 "%-8s%-16s%04x", cfg->vendor_name ?: "Linux",
 		 /* Assume product name dependent on the first LUN */
-		 cfg->product_name ?: (common->luns->cdrom
+		 cfg->product_name ?: ((*common->luns)->cdrom
 				     ? "File-CD Gadget"
 				     : "File-Stor Gadget"),
 		 i);
@@ -2802,9 +2819,10 @@ buffhds_first_it:
 	INFO(common, "Number of LUNs=%d\n", common->nluns);
 
 	pathbuf = kmalloc(PATH_MAX, GFP_KERNEL);
-	for (i = 0, nluns = common->nluns, curlun = common->luns;
+	for (i = 0, nluns = common->nluns, curlun_it = common->luns;
 	     i < nluns;
-	     ++curlun, ++i) {
+	     ++curlun_it, ++i) {
+		struct fsg_lun *curlun = *curlun_it;
 		char *p = "(no medium)";
 		if (fsg_lun_is_open(curlun)) {
 			p = "(error)";
@@ -2849,11 +2867,14 @@ static void fsg_common_release(struct kref *ref)
 	}
 
 	if (likely(common->luns)) {
-		struct fsg_lun *lun = common->luns;
+		struct fsg_lun **lun_it = common->luns;
 		unsigned i = common->nluns;
 
 		/* In error recovery common->nluns may be zero. */
-		for (; i; --i, ++lun) {
+		for (; i; --i, ++lun_it) {
+			struct fsg_lun *lun = *lun_it;
+			if (!lun)
+				continue;
 			device_remove_file(&lun->dev, &dev_attr_nofua);
 			device_remove_file(&lun->dev,
 					   lun->cdrom
@@ -2865,6 +2886,7 @@ static void fsg_common_release(struct kref *ref)
 					 : &dev_attr_file_nonremovable);
 			fsg_lun_close(lun);
 			device_unregister(&lun->dev);
+			kfree(lun);
 		}
 
 		kfree(common->luns);
-- 
cgit 


From 4610f19b4a7b0566f39aca490f7dde5b68e10243 Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Thu, 26 Sep 2013 14:38:19 +0200
Subject: usb: gadget: f_mass_storage: use usb_gstrings_attach

Prepare for handling with configfs.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/f_mass_storage.c | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 6b6c7f1b773f..32e5ab73f746 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -242,6 +242,11 @@ static struct usb_gadget_strings	fsg_stringtab = {
 	.strings	= fsg_strings,
 };
 
+static struct usb_gadget_strings *fsg_strings_array[] = {
+	&fsg_stringtab,
+	NULL,
+};
+
 /*-------------------------------------------------------------------------*/
 
 struct fsg_dev;
@@ -2645,6 +2650,7 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 	struct fsg_buffhd *bh;
 	struct fsg_lun **curlun_it;
 	struct fsg_lun_config *lcfg;
+	struct usb_string *us;
 	int nluns, i, rc;
 	char *pathbuf;
 
@@ -2687,14 +2693,13 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 	common->ep0req = cdev->req;
 	common->cdev = cdev;
 
-	/* Maybe allocate device-global string IDs, and patch descriptors */
-	if (fsg_strings[FSG_STRING_INTERFACE].id == 0) {
-		rc = usb_string_id(cdev);
-		if (unlikely(rc < 0))
-			goto error_release;
-		fsg_strings[FSG_STRING_INTERFACE].id = rc;
-		fsg_intf_desc.iInterface = rc;
+	us = usb_gstrings_attach(cdev, fsg_strings_array,
+				 ARRAY_SIZE(fsg_strings));
+	if (IS_ERR(us)) {
+		rc = PTR_ERR(us);
+		goto error_release;
 	}
+	fsg_intf_desc.iInterface = us[FSG_STRING_INTERFACE].id;
 
 	/*
 	 * Create the LUNs, open their backing files, and register the
@@ -2988,11 +2993,6 @@ autoconf_fail:
 
 /****************************** ADD FUNCTION ******************************/
 
-static struct usb_gadget_strings *fsg_strings_array[] = {
-	&fsg_stringtab,
-	NULL,
-};
-
 static int fsg_bind_config(struct usb_composite_dev *cdev,
 			   struct usb_configuration *c,
 			   struct fsg_common *common)
@@ -3005,7 +3005,6 @@ static int fsg_bind_config(struct usb_composite_dev *cdev,
 		return -ENOMEM;
 
 	fsg->function.name        = FSG_DRIVER_DESC;
-	fsg->function.strings     = fsg_strings_array;
 	fsg->function.bind        = fsg_bind;
 	fsg->function.unbind      = fsg_unbind;
 	fsg->function.setup       = fsg_setup;
-- 
cgit 


From b432cb837480d7b93f95c2c5766828e9ac7f036a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 09:44:44 +0530
Subject: usb: musb_dsps: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Ravi B <ravibabu@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/musb/musb_dsps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 4047cbb91bac..c7fe16db6bb6 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -628,7 +628,7 @@ static struct platform_driver dsps_usbss_driver = {
 	.remove         = dsps_remove,
 	.driver         = {
 		.name   = "musb-dsps",
-		.of_match_table	= of_match_ptr(musb_dsps_of_match),
+		.of_match_table	= musb_dsps_of_match,
 	},
 };
 
-- 
cgit 


From c4df9ae0d6a84890b5a877a8a32b7a7a1bca00a9 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 09:44:45 +0530
Subject: usb: phy: am335x-control: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/phy/phy-am335x-control.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/phy/phy-am335x-control.c b/drivers/usb/phy/phy-am335x-control.c
index 0fac976b63b5..634f49acd20e 100644
--- a/drivers/usb/phy/phy-am335x-control.c
+++ b/drivers/usb/phy/phy-am335x-control.c
@@ -171,7 +171,7 @@ static struct platform_driver am335x_control_driver = {
 	.driver		= {
 		.name	= "am335x-control-usb",
 		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(omap_control_usb_id_table),
+		.of_match_table = omap_control_usb_id_table,
 	},
 };
 
-- 
cgit 


From b99fffca7ddd46b78322757cfd77e9d2cdcdc7ad Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 09:44:46 +0530
Subject: usb: phy: am335x: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/phy/phy-am335x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/phy/phy-am335x.c b/drivers/usb/phy/phy-am335x.c
index f3478a856edb..1495cdc751ad 100644
--- a/drivers/usb/phy/phy-am335x.c
+++ b/drivers/usb/phy/phy-am335x.c
@@ -125,7 +125,7 @@ static struct platform_driver am335x_phy_driver = {
 		.name   = "am335x-phy-driver",
 		.owner  = THIS_MODULE,
 		.pm = DEV_PM_OPS,
-		.of_match_table = of_match_ptr(am335x_phy_ids),
+		.of_match_table = am335x_phy_ids,
 	},
 };
 
-- 
cgit 


From 78723920a6a57f6284574133d10f3e94b06b5979 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 09:44:47 +0530
Subject: usb: phy: tegra-usb: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: linux-tegra@vger.kernel.org
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/phy/phy-tegra-usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/phy/phy-tegra-usb.c b/drivers/usb/phy/phy-tegra-usb.c
index e9cb1cb8abc7..82232acf1ab6 100644
--- a/drivers/usb/phy/phy-tegra-usb.c
+++ b/drivers/usb/phy/phy-tegra-usb.c
@@ -1090,7 +1090,7 @@ static struct platform_driver tegra_usb_phy_driver = {
 	.driver		= {
 		.name	= "tegra-phy",
 		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(tegra_usb_phy_id_table),
+		.of_match_table = tegra_usb_phy_id_table,
 	},
 };
 module_platform_driver(tegra_usb_phy_driver);
-- 
cgit 


From 1df3a401154add23826d714c808204633b3b1c31 Mon Sep 17 00:00:00 2001
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: Wed, 18 Sep 2013 18:13:00 +0100
Subject: HID: Delay opening HID device

Don't call hid_open_device till there is actually an user. This saves
power by not opening underlying transport for HID. Also close device
if there are no active mfd client using HID sensor hub.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/hid/hid-sensor-hub.c   | 45 ++++++++++++++++++++++++++++++++----------
 include/linux/hid-sensor-hub.h | 18 +++++++++++++++++
 2 files changed, 53 insertions(+), 10 deletions(-)

diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index 10e1581022cf..88fc5aefcd96 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -465,6 +465,39 @@ static int sensor_hub_raw_event(struct hid_device *hdev,
 	return 1;
 }
 
+int sensor_hub_device_open(struct hid_sensor_hub_device *hsdev)
+{
+	int ret = 0;
+	struct sensor_hub_data *data =  hid_get_drvdata(hsdev->hdev);
+
+	mutex_lock(&data->mutex);
+	if (!hsdev->ref_cnt) {
+		ret = hid_hw_open(hsdev->hdev);
+		if (ret) {
+			hid_err(hsdev->hdev, "failed to open hid device\n");
+			mutex_unlock(&data->mutex);
+			return ret;
+		}
+	}
+	hsdev->ref_cnt++;
+	mutex_unlock(&data->mutex);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(sensor_hub_device_open);
+
+void sensor_hub_device_close(struct hid_sensor_hub_device *hsdev)
+{
+	struct sensor_hub_data *data =  hid_get_drvdata(hsdev->hdev);
+
+	mutex_lock(&data->mutex);
+	hsdev->ref_cnt--;
+	if (!hsdev->ref_cnt)
+		hid_hw_close(hsdev->hdev);
+	mutex_unlock(&data->mutex);
+}
+EXPORT_SYMBOL_GPL(sensor_hub_device_close);
+
 static int sensor_hub_probe(struct hid_device *hdev,
 				const struct hid_device_id *id)
 {
@@ -506,12 +539,6 @@ static int sensor_hub_probe(struct hid_device *hdev,
 		hid_err(hdev, "hw start failed\n");
 		return ret;
 	}
-	ret = hid_hw_open(hdev);
-	if (ret) {
-		hid_err(hdev, "failed to open input interrupt pipe\n");
-		goto err_stop_hw;
-	}
-
 	INIT_LIST_HEAD(&sd->dyn_callback_list);
 	sd->hid_sensor_client_cnt = 0;
 	report_enum = &hdev->report_enum[HID_INPUT_REPORT];
@@ -520,7 +547,7 @@ static int sensor_hub_probe(struct hid_device *hdev,
 	if (dev_cnt > HID_MAX_PHY_DEVICES) {
 		hid_err(hdev, "Invalid Physical device count\n");
 		ret = -EINVAL;
-		goto err_close;
+		goto err_stop_hw;
 	}
 	sd->hid_sensor_hub_client_devs = kzalloc(dev_cnt *
 						sizeof(struct mfd_cell),
@@ -528,7 +555,7 @@ static int sensor_hub_probe(struct hid_device *hdev,
 	if (sd->hid_sensor_hub_client_devs == NULL) {
 		hid_err(hdev, "Failed to allocate memory for mfd cells\n");
 			ret = -ENOMEM;
-			goto err_close;
+			goto err_stop_hw;
 	}
 	list_for_each_entry(report, &report_enum->report_list, list) {
 		hid_dbg(hdev, "Report id:%x\n", report->id);
@@ -565,8 +592,6 @@ err_free_names:
 	for (i = 0; i < sd->hid_sensor_client_cnt ; ++i)
 		kfree(sd->hid_sensor_hub_client_devs[i].name);
 	kfree(sd->hid_sensor_hub_client_devs);
-err_close:
-	hid_hw_close(hdev);
 err_stop_hw:
 	hid_hw_stop(hdev);
 
diff --git a/include/linux/hid-sensor-hub.h b/include/linux/hid-sensor-hub.h
index 32ba45158d39..a265af294ea4 100644
--- a/include/linux/hid-sensor-hub.h
+++ b/include/linux/hid-sensor-hub.h
@@ -47,11 +47,13 @@ struct hid_sensor_hub_attribute_info {
  * @hdev:		Stores the hid instance.
  * @vendor_id:		Vendor id of hub device.
  * @product_id:		Product id of hub device.
+ * @ref_cnt:		Number of MFD clients have opened this device
  */
 struct hid_sensor_hub_device {
 	struct hid_device *hdev;
 	u32 vendor_id;
 	u32 product_id;
+	int ref_cnt;
 };
 
 /**
@@ -74,6 +76,22 @@ struct hid_sensor_hub_callbacks {
 			 void *priv);
 };
 
+/**
+* sensor_hub_device_open() - Open hub device
+* @hsdev:	Hub device instance.
+*
+* Used to open hid device for sensor hub.
+*/
+int sensor_hub_device_open(struct hid_sensor_hub_device *hsdev);
+
+/**
+* sensor_hub_device_clode() - Close hub device
+* @hsdev:	Hub device instance.
+*
+* Used to clode hid device for sensor hub.
+*/
+void sensor_hub_device_close(struct hid_sensor_hub_device *hsdev);
+
 /* Registration functions */
 
 /**
-- 
cgit 


From 7d3c192df0457195c4cdd5272b39c8db8334be81 Mon Sep 17 00:00:00 2001
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: Wed, 18 Sep 2013 18:13:00 +0100
Subject: IIO: call sensor hub open close function

Call hid_sensor_hub_device_open when user space opens device and call
hid_sensor_hub_device_close when device is closed. This helps in
saving power.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/common/hid-sensors/hid-sensor-trigger.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
index 87419c41b991..b6e77e0fc420 100644
--- a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
+++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
@@ -34,6 +34,12 @@ static int hid_sensor_data_rdy_trigger_set_state(struct iio_trigger *trig,
 	struct hid_sensor_common *st = iio_trigger_get_drvdata(trig);
 	int state_val;
 
+	if (state) {
+		if (sensor_hub_device_open(st->hsdev))
+			return -EIO;
+	} else
+		sensor_hub_device_close(st->hsdev);
+
 	state_val = state ? 1 : 0;
 	if (IS_ENABLED(CONFIG_HID_SENSOR_ENUM_BASE_QUIRKS))
 		++state_val;
-- 
cgit 


From 25682ae5e40f04cb86321dfc5a6713e4b45b55ea Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: iio:ad5064: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/ad5064.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/dac/ad5064.c b/drivers/iio/dac/ad5064.c
index b18e8c4347c2..cb9c6366032c 100644
--- a/drivers/iio/dac/ad5064.c
+++ b/drivers/iio/dac/ad5064.c
@@ -239,10 +239,9 @@ static int ad5064_read_raw(struct iio_dev *indio_dev,
 		if (scale_uv < 0)
 			return scale_uv;
 
-		scale_uv = (scale_uv * 100) >> chan->scan_type.realbits;
-		*val =  scale_uv / 100000;
-		*val2 = (scale_uv % 100000) * 10;
-		return IIO_VAL_INT_PLUS_MICRO;
+		*val = scale_uv / 1000;
+		*val2 = chan->scan_type.realbits;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	default:
 		break;
 	}
-- 
cgit 


From ca3bc8b62634215f899cefde52a31cc6600a686c Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: iio:ad5360: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/ad5360.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/iio/dac/ad5360.c b/drivers/iio/dac/ad5360.c
index d2da71ece740..b968af50db0a 100644
--- a/drivers/iio/dac/ad5360.c
+++ b/drivers/iio/dac/ad5360.c
@@ -379,15 +379,14 @@ static int ad5360_read_raw(struct iio_dev *indio_dev,
 		*val = ret >> chan->scan_type.shift;
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
-		/* vout = 4 * vref * dac_code */
-		scale_uv = ad5360_get_channel_vref(st, chan->channel) * 4 * 100;
+		scale_uv = ad5360_get_channel_vref(st, chan->channel);
 		if (scale_uv < 0)
 			return scale_uv;
 
-		scale_uv >>= (chan->scan_type.realbits);
-		*val =  scale_uv / 100000;
-		*val2 = (scale_uv % 100000) * 10;
-		return IIO_VAL_INT_PLUS_MICRO;
+		/* vout = 4 * vref * dac_code */
+		*val = scale_uv * 4 / 1000;
+		*val2 = chan->scan_type.realbits;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	case IIO_CHAN_INFO_CALIBBIAS:
 		ret = ad5360_read(indio_dev, AD5360_READBACK_OFFSET,
 			chan->address);
-- 
cgit 


From 4f2c188597858aa215754be7279e91d778502d8e Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: iio:ad5380: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/ad5380.c | 40 +++++++++++++++++++---------------------
 1 file changed, 19 insertions(+), 21 deletions(-)

diff --git a/drivers/iio/dac/ad5380.c b/drivers/iio/dac/ad5380.c
index 4c791e66e0d7..a59ff0e7b888 100644
--- a/drivers/iio/dac/ad5380.c
+++ b/drivers/iio/dac/ad5380.c
@@ -204,7 +204,6 @@ static int ad5380_read_raw(struct iio_dev *indio_dev,
 	struct iio_chan_spec const *chan, int *val, int *val2, long info)
 {
 	struct ad5380_state *st = iio_priv(indio_dev);
-	unsigned long scale_uv;
 	int ret;
 
 	switch (info) {
@@ -225,10 +224,9 @@ static int ad5380_read_raw(struct iio_dev *indio_dev,
 		val -= (1 << chan->scan_type.realbits) / 2;
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
-		scale_uv = ((2 * st->vref) >> chan->scan_type.realbits) * 100;
-		*val =  scale_uv / 100000;
-		*val2 = (scale_uv % 100000) * 10;
-		return IIO_VAL_INT_PLUS_MICRO;
+		*val = 2 * st->vref;
+		*val2 = chan->scan_type.realbits;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	default:
 		break;
 	}
@@ -271,72 +269,72 @@ static const struct ad5380_chip_info ad5380_chip_info_tbl[] = {
 	[ID_AD5380_3] = {
 		.channel_template = AD5380_CHANNEL(14),
 		.num_channels = 40,
-		.int_vref = 1250000,
+		.int_vref = 1250,
 	},
 	[ID_AD5380_5] = {
 		.channel_template = AD5380_CHANNEL(14),
 		.num_channels = 40,
-		.int_vref = 2500000,
+		.int_vref = 2500,
 	},
 	[ID_AD5381_3] = {
 		.channel_template = AD5380_CHANNEL(12),
 		.num_channels = 16,
-		.int_vref = 1250000,
+		.int_vref = 1250,
 	},
 	[ID_AD5381_5] = {
 		.channel_template = AD5380_CHANNEL(12),
 		.num_channels = 16,
-		.int_vref = 2500000,
+		.int_vref = 2500,
 	},
 	[ID_AD5382_3] = {
 		.channel_template = AD5380_CHANNEL(14),
 		.num_channels = 32,
-		.int_vref = 1250000,
+		.int_vref = 1250,
 	},
 	[ID_AD5382_5] = {
 		.channel_template = AD5380_CHANNEL(14),
 		.num_channels = 32,
-		.int_vref = 2500000,
+		.int_vref = 2500,
 	},
 	[ID_AD5383_3] = {
 		.channel_template = AD5380_CHANNEL(12),
 		.num_channels = 32,
-		.int_vref = 1250000,
+		.int_vref = 1250,
 	},
 	[ID_AD5383_5] = {
 		.channel_template = AD5380_CHANNEL(12),
 		.num_channels = 32,
-		.int_vref = 2500000,
+		.int_vref = 2500,
 	},
 	[ID_AD5390_3] = {
 		.channel_template = AD5380_CHANNEL(14),
 		.num_channels = 16,
-		.int_vref = 1250000,
+		.int_vref = 1250,
 	},
 	[ID_AD5390_5] = {
 		.channel_template = AD5380_CHANNEL(14),
 		.num_channels = 16,
-		.int_vref = 2500000,
+		.int_vref = 2500,
 	},
 	[ID_AD5391_3] = {
 		.channel_template = AD5380_CHANNEL(12),
 		.num_channels = 16,
-		.int_vref = 1250000,
+		.int_vref = 1250,
 	},
 	[ID_AD5391_5] = {
 		.channel_template = AD5380_CHANNEL(12),
 		.num_channels = 16,
-		.int_vref = 2500000,
+		.int_vref = 2500,
 	},
 	[ID_AD5392_3] = {
 		.channel_template = AD5380_CHANNEL(14),
 		.num_channels = 8,
-		.int_vref = 1250000,
+		.int_vref = 1250,
 	},
 	[ID_AD5392_5] = {
 		.channel_template = AD5380_CHANNEL(14),
 		.num_channels = 8,
-		.int_vref = 2500000,
+		.int_vref = 2500,
 	},
 };
 
@@ -395,7 +393,7 @@ static int ad5380_probe(struct device *dev, struct regmap *regmap,
 		return ret;
 	}
 
-	if (st->chip_info->int_vref == 2500000)
+	if (st->chip_info->int_vref == 2500)
 		ctrl |= AD5380_CTRL_INT_VREF_2V5;
 
 	st->vref_reg = devm_regulator_get(dev, "vref");
@@ -411,7 +409,7 @@ static int ad5380_probe(struct device *dev, struct regmap *regmap,
 		if (ret < 0)
 			goto error_disable_reg;
 
-		st->vref = ret;
+		st->vref = ret / 1000;
 	} else {
 		st->vref = st->chip_info->int_vref;
 		ctrl |= AD5380_CTRL_INT_VREF_EN;
-- 
cgit 


From bc7c49bc77ba95609236f23082a38ec160416a8d Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: iio:ad5421: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/ad5421.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/drivers/iio/dac/ad5421.c b/drivers/iio/dac/ad5421.c
index 1f78b14abb7d..567c4bd546e5 100644
--- a/drivers/iio/dac/ad5421.c
+++ b/drivers/iio/dac/ad5421.c
@@ -281,18 +281,11 @@ static inline unsigned int ad5421_get_offset(struct ad5421_state *st)
 	return (min * (1 << 16)) / (max - min);
 }
 
-static inline unsigned int ad5421_get_scale(struct ad5421_state *st)
-{
-	unsigned int min, max;
-
-	ad5421_get_current_min_max(st, &min, &max);
-	return ((max - min) * 1000) / (1 << 16);
-}
-
 static int ad5421_read_raw(struct iio_dev *indio_dev,
 	struct iio_chan_spec const *chan, int *val, int *val2, long m)
 {
 	struct ad5421_state *st = iio_priv(indio_dev);
+	unsigned int min, max;
 	int ret;
 
 	if (chan->type != IIO_CURRENT)
@@ -306,9 +299,10 @@ static int ad5421_read_raw(struct iio_dev *indio_dev,
 		*val = ret;
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
-		*val = 0;
-		*val2 = ad5421_get_scale(st);
-		return IIO_VAL_INT_PLUS_MICRO;
+		ad5421_get_current_min_max(st, &min, &max);
+		*val = max - min;
+		*val2 = (1 << 16) * 1000;
+		return IIO_VAL_FRACTIONAL;
 	case IIO_CHAN_INFO_OFFSET:
 		*val = ad5421_get_offset(st);
 		return IIO_VAL_INT;
-- 
cgit 


From 0a99b6014343e39d7e01ebfc386fb16c8a5a6826 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: iio:ad5446: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/ad5446.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/iio/dac/ad5446.c b/drivers/iio/dac/ad5446.c
index 8e28d3633e22..1263b0e5ad84 100644
--- a/drivers/iio/dac/ad5446.c
+++ b/drivers/iio/dac/ad5446.c
@@ -163,18 +163,15 @@ static int ad5446_read_raw(struct iio_dev *indio_dev,
 			   long m)
 {
 	struct ad5446_state *st = iio_priv(indio_dev);
-	unsigned long scale_uv;
 
 	switch (m) {
 	case IIO_CHAN_INFO_RAW:
 		*val = st->cached_val;
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
-		scale_uv = (st->vref_mv * 1000) >> chan->scan_type.realbits;
-		*val =  scale_uv / 1000;
-		*val2 = (scale_uv % 1000) * 1000;
-		return IIO_VAL_INT_PLUS_MICRO;
-
+		*val = st->vref_mv;
+		*val2 = chan->scan_type.realbits;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	}
 	return -EINVAL;
 }
-- 
cgit 


From 54ea14339ddd28b935773d65257024757c9358d5 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: iio:ad5504: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/ad5504.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/iio/dac/ad5504.c b/drivers/iio/dac/ad5504.c
index 31f4ff29f914..c0957a918e17 100644
--- a/drivers/iio/dac/ad5504.c
+++ b/drivers/iio/dac/ad5504.c
@@ -100,7 +100,6 @@ static int ad5504_read_raw(struct iio_dev *indio_dev,
 			   long m)
 {
 	struct ad5504_state *st = iio_priv(indio_dev);
-	unsigned long scale_uv;
 	int ret;
 
 	switch (m) {
@@ -113,11 +112,9 @@ static int ad5504_read_raw(struct iio_dev *indio_dev,
 
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
-		scale_uv = (st->vref_mv * 1000) >> chan->scan_type.realbits;
-		*val =  scale_uv / 1000;
-		*val2 = (scale_uv % 1000) * 1000;
-		return IIO_VAL_INT_PLUS_MICRO;
-
+		*val = st->vref_mv;
+		*val2 = chan->scan_type.realbits;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	}
 	return -EINVAL;
 }
-- 
cgit 


From 14229e87a977c3c33bd33a95b77d2de48d2b46e9 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: iio:ad5624r: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/ad5624r_spi.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/iio/dac/ad5624r_spi.c b/drivers/iio/dac/ad5624r_spi.c
index dbb1289cc7a6..774dd968145b 100644
--- a/drivers/iio/dac/ad5624r_spi.c
+++ b/drivers/iio/dac/ad5624r_spi.c
@@ -50,15 +50,12 @@ static int ad5624r_read_raw(struct iio_dev *indio_dev,
 			   long m)
 {
 	struct ad5624r_state *st = iio_priv(indio_dev);
-	unsigned long scale_uv;
 
 	switch (m) {
 	case IIO_CHAN_INFO_SCALE:
-		scale_uv = (st->vref_mv * 1000) >> chan->scan_type.realbits;
-		*val =  scale_uv / 1000;
-		*val2 = (scale_uv % 1000) * 1000;
-		return IIO_VAL_INT_PLUS_MICRO;
-
+		*val = st->vref_mv;
+		*val2 = chan->scan_type.realbits;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	}
 	return -EINVAL;
 }
-- 
cgit 


From ecc7e948bca09b97b6b1d0f4b4516bee34e8ce6b Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: iio:ad5686: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/ad5686.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/iio/dac/ad5686.c b/drivers/iio/dac/ad5686.c
index f472b48445f6..30e506e37dd2 100644
--- a/drivers/iio/dac/ad5686.c
+++ b/drivers/iio/dac/ad5686.c
@@ -201,7 +201,6 @@ static int ad5686_read_raw(struct iio_dev *indio_dev,
 			   long m)
 {
 	struct ad5686_state *st = iio_priv(indio_dev);
-	unsigned long scale_uv;
 	int ret;
 
 	switch (m) {
@@ -214,12 +213,9 @@ static int ad5686_read_raw(struct iio_dev *indio_dev,
 		*val = ret;
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
-		scale_uv = (st->vref_mv * 100000)
-			>> (chan->scan_type.realbits);
-		*val =  scale_uv / 100000;
-		*val2 = (scale_uv % 100000) * 10;
-		return IIO_VAL_INT_PLUS_MICRO;
-
+		*val = st->vref_mv;
+		*val2 = chan->scan_type.realbits;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	}
 	return -EINVAL;
 }
-- 
cgit 


From ae76751f67110f497848afd71d06a0b6bb4a7c89 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: iio:ad5755: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/ad5755.c | 17 +++++------------
 1 file changed, 5 insertions(+), 12 deletions(-)

diff --git a/drivers/iio/dac/ad5755.c b/drivers/iio/dac/ad5755.c
index f305a0c83418..bd31dbc340c1 100644
--- a/drivers/iio/dac/ad5755.c
+++ b/drivers/iio/dac/ad5755.c
@@ -253,15 +253,6 @@ static inline int ad5755_get_offset(struct ad5755_state *st,
 	return (min * (1 << chan->scan_type.realbits)) / (max - min);
 }
 
-static inline int ad5755_get_scale(struct ad5755_state *st,
-	struct iio_chan_spec const *chan)
-{
-	int min, max;
-
-	ad5755_get_min_max(st, chan, &min, &max);
-	return ((max - min) * 1000000000ULL) >> chan->scan_type.realbits;
-}
-
 static int ad5755_chan_reg_info(struct ad5755_state *st,
 	struct iio_chan_spec const *chan, long info, bool write,
 	unsigned int *reg, unsigned int *shift, unsigned int *offset)
@@ -303,13 +294,15 @@ static int ad5755_read_raw(struct iio_dev *indio_dev,
 {
 	struct ad5755_state *st = iio_priv(indio_dev);
 	unsigned int reg, shift, offset;
+	int min, max;
 	int ret;
 
 	switch (info) {
 	case IIO_CHAN_INFO_SCALE:
-		*val = 0;
-		*val2 = ad5755_get_scale(st, chan);
-		return IIO_VAL_INT_PLUS_NANO;
+		ad5755_get_min_max(st, chan, &min, &max);
+		*val = max - min;
+		*val2 = chan->scan_type.realbits;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	case IIO_CHAN_INFO_OFFSET:
 		*val = ad5755_get_offset(st, chan);
 		return IIO_VAL_INT;
-- 
cgit 


From 3f83dae88422992140b6125ab866cdec9fd7b3b6 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: iio:ad5764: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Also fix a off by one error in the comment describing the transfer function.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/ad5764.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/iio/dac/ad5764.c b/drivers/iio/dac/ad5764.c
index df7e028d9db5..a8ff5b2ed13e 100644
--- a/drivers/iio/dac/ad5764.c
+++ b/drivers/iio/dac/ad5764.c
@@ -217,7 +217,6 @@ static int ad5764_read_raw(struct iio_dev *indio_dev,
 	struct iio_chan_spec const *chan, int *val, int *val2, long info)
 {
 	struct ad5764_state *st = iio_priv(indio_dev);
-	unsigned long scale_uv;
 	unsigned int reg;
 	int vref;
 	int ret;
@@ -245,15 +244,14 @@ static int ad5764_read_raw(struct iio_dev *indio_dev,
 		*val = sign_extend32(*val, 5);
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
-		/* vout = 4 * vref + ((dac_code / 65535) - 0.5) */
+		/* vout = 4 * vref + ((dac_code / 65536) - 0.5) */
 		vref = ad5764_get_channel_vref(st, chan->channel);
 		if (vref < 0)
 			return vref;
 
-		scale_uv = (vref * 4 * 100) >> chan->scan_type.realbits;
-		*val = scale_uv / 100000;
-		*val2 = (scale_uv % 100000) * 10;
-		return IIO_VAL_INT_PLUS_MICRO;
+		*val = vref * 4 / 1000;
+		*val2 = chan->scan_type.realbits;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	case IIO_CHAN_INFO_OFFSET:
 		*val = -(1 << chan->scan_type.realbits) / 2;
 		return IIO_VAL_INT;
-- 
cgit 


From 213983cd32a7d983675d86ece17ac040bd39fd47 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: iio:ad5791: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/ad5791.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/dac/ad5791.c b/drivers/iio/dac/ad5791.c
index 3cee89be68c3..d64acbd89482 100644
--- a/drivers/iio/dac/ad5791.c
+++ b/drivers/iio/dac/ad5791.c
@@ -270,9 +270,9 @@ static int ad5791_read_raw(struct iio_dev *indio_dev,
 		*val >>= chan->scan_type.shift;
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
-		*val = 0;
-		*val2 = (((u64)st->vref_mv) * 1000000ULL) >> chan->scan_type.realbits;
-		return IIO_VAL_INT_PLUS_MICRO;
+		*val = st->vref_mv;
+		*val2 = (1 << chan->scan_type.realbits) - 1;
+		return IIO_VAL_FRACTIONAL;
 	case IIO_CHAN_INFO_OFFSET:
 		val64 = (((u64)st->vref_neg_mv) << chan->scan_type.realbits);
 		do_div(val64, st->vref_mv);
-- 
cgit 


From 998f129c76e2030ad2e68cf59d75eef0e5a58fd3 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: iio:max517: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/max517.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/iio/dac/max517.c b/drivers/iio/dac/max517.c
index 83adcbf1a205..d26be14fff64 100644
--- a/drivers/iio/dac/max517.c
+++ b/drivers/iio/dac/max517.c
@@ -82,15 +82,13 @@ static int max517_read_raw(struct iio_dev *indio_dev,
 			   long m)
 {
 	struct max517_data *data = iio_priv(indio_dev);
-	unsigned int scale_uv;
 
 	switch (m) {
 	case IIO_CHAN_INFO_SCALE:
 		/* Corresponds to Vref / 2^(bits) */
-		scale_uv = (data->vref_mv[chan->channel] * 1000) >> 8;
-		*val =  scale_uv / 1000000;
-		*val2 = scale_uv % 1000000;
-		return IIO_VAL_INT_PLUS_MICRO;
+		*val = data->vref_mv[chan->channel];
+		*val2 = 8;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	default:
 		break;
 	}
-- 
cgit 


From b117f96f49c92751574042136b99b8ba7eb8977f Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: iio:mcp4725: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/mcp4725.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c
index 7a42d85269bb..d982752dd9c4 100644
--- a/drivers/iio/dac/mcp4725.c
+++ b/drivers/iio/dac/mcp4725.c
@@ -239,17 +239,15 @@ static int mcp4725_read_raw(struct iio_dev *indio_dev,
 			   int *val, int *val2, long mask)
 {
 	struct mcp4725_data *data = iio_priv(indio_dev);
-	unsigned long scale_uv;
 
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
 		*val = data->dac_value;
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
-		scale_uv = (data->vref_mv * 1000) >> 12;
-		*val =  scale_uv / 1000000;
-		*val2 = scale_uv % 1000000;
-		return IIO_VAL_INT_PLUS_MICRO;
+		*val = data->vref_mv;
+		*val2 = 12;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	}
 	return -EINVAL;
 }
-- 
cgit 


From 2ebc39c0bbb30d6f06c3fe65c458e546db275f6d Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: iio:ad7266: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ad7266.c | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c
index 656aa3e102f2..f5723cbd2032 100644
--- a/drivers/iio/adc/ad7266.c
+++ b/drivers/iio/adc/ad7266.c
@@ -27,7 +27,7 @@
 struct ad7266_state {
 	struct spi_device	*spi;
 	struct regulator	*reg;
-	unsigned long		vref_uv;
+	unsigned long		vref_mv;
 
 	struct spi_transfer	single_xfer[3];
 	struct spi_message	single_msg;
@@ -156,7 +156,7 @@ static int ad7266_read_raw(struct iio_dev *indio_dev,
 	struct iio_chan_spec const *chan, int *val, int *val2, long m)
 {
 	struct ad7266_state *st = iio_priv(indio_dev);
-	unsigned long scale_uv;
+	unsigned long scale_mv;
 	int ret;
 
 	switch (m) {
@@ -174,16 +174,15 @@ static int ad7266_read_raw(struct iio_dev *indio_dev,
 
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
-		scale_uv = (st->vref_uv * 100);
+		scale_mv = st->vref_mv;
 		if (st->mode == AD7266_MODE_DIFF)
-			scale_uv *= 2;
+			scale_mv *= 2;
 		if (st->range == AD7266_RANGE_2VREF)
-			scale_uv *= 2;
+			scale_mv *= 2;
 
-		scale_uv >>= chan->scan_type.realbits;
-		*val =  scale_uv / 100000;
-		*val2 = (scale_uv % 100000) * 10;
-		return IIO_VAL_INT_PLUS_MICRO;
+		*val = scale_mv;
+		*val2 = chan->scan_type.realbits;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	case IIO_CHAN_INFO_OFFSET:
 		if (st->range == AD7266_RANGE_2VREF &&
 			st->mode != AD7266_MODE_DIFF)
@@ -414,10 +413,10 @@ static int ad7266_probe(struct spi_device *spi)
 		if (ret < 0)
 			goto error_disable_reg;
 
-		st->vref_uv = ret;
+		st->vref_mv = ret / 1000;
 	} else {
 		/* Use internal reference */
-		st->vref_uv = 2500000;
+		st->vref_mv = 2500;
 	}
 
 	if (pdata) {
-- 
cgit 


From d88c89db9a7550c2ed6551f73b6702faee190434 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: iio:ad7476: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ad7476.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/adc/ad7476.c b/drivers/iio/adc/ad7476.c
index 8d808b9de909..d141d452c3d1 100644
--- a/drivers/iio/adc/ad7476.c
+++ b/drivers/iio/adc/ad7476.c
@@ -127,10 +127,9 @@ static int ad7476_read_raw(struct iio_dev *indio_dev,
 		} else {
 			scale_uv = st->chip_info->int_vref_uv;
 		}
-		scale_uv >>= chan->scan_type.realbits;
-		*val =  scale_uv / 1000;
-		*val2 = (scale_uv % 1000) * 1000;
-		return IIO_VAL_INT_PLUS_MICRO;
+		*val = scale_uv / 1000;
+		*val2 = chan->scan_type.realbits;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	}
 	return -EINVAL;
 }
-- 
cgit 


From 488a21827a257b735571468632e9f677b13bdddd Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: iio:ad7791: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ad7791.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/iio/adc/ad7791.c b/drivers/iio/adc/ad7791.c
index c20203577d2d..c19f8fd1b4b7 100644
--- a/drivers/iio/adc/ad7791.c
+++ b/drivers/iio/adc/ad7791.c
@@ -202,7 +202,6 @@ static int ad7791_read_raw(struct iio_dev *indio_dev,
 {
 	struct ad7791_state *st = iio_priv(indio_dev);
 	bool unipolar = !!(st->mode & AD7791_MODE_UNIPOLAR);
-	unsigned long long scale_pv;
 
 	switch (info) {
 	case IIO_CHAN_INFO_RAW:
@@ -220,23 +219,26 @@ static int ad7791_read_raw(struct iio_dev *indio_dev,
 	case IIO_CHAN_INFO_SCALE:
 		/* The monitor channel uses an internal reference. */
 		if (chan->address == AD7791_CH_AVDD_MONITOR) {
-			scale_pv = 5850000000000ULL;
+			/*
+			 * The signal is attenuated by a factor of 5 and
+			 * compared against a 1.17V internal reference.
+			 */
+			*val = 1170 * 5;
 		} else {
 			int voltage_uv;
 
 			voltage_uv = regulator_get_voltage(st->reg);
 			if (voltage_uv < 0)
 				return voltage_uv;
-			scale_pv = (unsigned long long)voltage_uv * 1000000;
+
+			*val = voltage_uv / 1000;
 		}
 		if (unipolar)
-			scale_pv >>= chan->scan_type.realbits;
+			*val2 = chan->scan_type.realbits;
 		else
-			scale_pv >>= chan->scan_type.realbits - 1;
-		*val2 = do_div(scale_pv, 1000000000);
-		*val = scale_pv;
+			*val2 = chan->scan_type.realbits - 1;
 
-		return IIO_VAL_INT_PLUS_NANO;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	}
 
 	return -EINVAL;
-- 
cgit 


From c45e561ee81477903b8254331cb2e28e04082de5 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: iio:at91: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/at91_adc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index 78121949d6ef..8b93295369b0 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -366,9 +366,9 @@ static int at91_adc_read_raw(struct iio_dev *idev,
 		return IIO_VAL_INT;
 
 	case IIO_CHAN_INFO_SCALE:
-		*val = (st->vref_mv * 1000) >> chan->scan_type.realbits;
-		*val2 = 0;
-		return IIO_VAL_INT_PLUS_MICRO;
+		*val = st->vref_mv;
+		*val2 = chan->scan_type.realbits;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	default:
 		break;
 	}
-- 
cgit 


From b2171677cbf8c781679b588fdffabfe0eaecbcdc Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: iio:max1363: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/max1363.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/iio/adc/max1363.c b/drivers/iio/adc/max1363.c
index b4bc166d57b0..2b34d2f02cf3 100644
--- a/drivers/iio/adc/max1363.c
+++ b/drivers/iio/adc/max1363.c
@@ -397,7 +397,6 @@ static int max1363_read_raw(struct iio_dev *indio_dev,
 {
 	struct max1363_state *st = iio_priv(indio_dev);
 	int ret;
-	unsigned long scale_uv;
 
 	switch (m) {
 	case IIO_CHAN_INFO_RAW:
@@ -406,10 +405,9 @@ static int max1363_read_raw(struct iio_dev *indio_dev,
 			return ret;
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
-		scale_uv = st->vref_uv >> st->chip_info->bits;
-		*val = scale_uv / 1000;
-		*val2 = (scale_uv % 1000) * 1000;
-		return IIO_VAL_INT_PLUS_MICRO;
+		*val = st->vref_uv / 1000;
+		*val2 = st->chip_info->bits;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	default:
 		return -EINVAL;
 	}
-- 
cgit 


From d6570b33a1c0620774fe693030ef9e0317dafd84 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: staging:iio:ad7280a: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/ad7280a.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/iio/adc/ad7280a.c b/drivers/staging/iio/adc/ad7280a.c
index e7191e44a970..8209fa542a8a 100644
--- a/drivers/staging/iio/adc/ad7280a.c
+++ b/drivers/staging/iio/adc/ad7280a.c
@@ -783,7 +783,6 @@ static int ad7280_read_raw(struct iio_dev *indio_dev,
 			   long m)
 {
 	struct ad7280_state *st = iio_priv(indio_dev);
-	unsigned int scale_uv;
 	int ret;
 
 	switch (m) {
@@ -804,13 +803,12 @@ static int ad7280_read_raw(struct iio_dev *indio_dev,
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
 		if ((chan->address & 0xFF) <= AD7280A_CELL_VOLTAGE_6)
-			scale_uv = (4000 * 1000) >> AD7280A_BITS;
+			*val = 4000;
 		else
-			scale_uv = (5000 * 1000) >> AD7280A_BITS;
+			*val = 5000;
 
-		*val =  scale_uv / 1000;
-		*val2 = (scale_uv % 1000) * 1000;
-		return IIO_VAL_INT_PLUS_MICRO;
+		*val2 = AD7280A_BITS;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	}
 	return -EINVAL;
 }
-- 
cgit 


From 9324131b5a3cccd4acf1408539502503a5bee206 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: staging:iio:ad7606: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/ad7606_core.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/iio/adc/ad7606_core.c b/drivers/staging/iio/adc/ad7606_core.c
index f042027b5291..2083673a79ca 100644
--- a/drivers/staging/iio/adc/ad7606_core.c
+++ b/drivers/staging/iio/adc/ad7606_core.c
@@ -85,7 +85,6 @@ static int ad7606_read_raw(struct iio_dev *indio_dev,
 {
 	int ret;
 	struct ad7606_state *st = iio_priv(indio_dev);
-	unsigned int scale_uv;
 
 	switch (m) {
 	case IIO_CHAN_INFO_RAW:
@@ -101,11 +100,9 @@ static int ad7606_read_raw(struct iio_dev *indio_dev,
 		*val = (short) ret;
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
-		scale_uv = (st->range * 1000 * 2)
-			>> st->chip_info->channels[0].scan_type.realbits;
-		*val =  scale_uv / 1000;
-		*val2 = (scale_uv % 1000) * 1000;
-		return IIO_VAL_INT_PLUS_MICRO;
+		*val = st->range * 2;
+		*val2 = st->chip_info->channels[0].scan_type.realbits;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	}
 	return -EINVAL;
 }
-- 
cgit 


From c0d014122de56d17f65048e4737d039c89aa7e8f Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: staging:iio:ad7780: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/ad7780.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c
index 4f2522a9edfb..273add3ed63f 100644
--- a/drivers/staging/iio/adc/ad7780.c
+++ b/drivers/staging/iio/adc/ad7780.c
@@ -90,17 +90,14 @@ static int ad7780_read_raw(struct iio_dev *indio_dev,
 			   long m)
 {
 	struct ad7780_state *st = iio_priv(indio_dev);
-	unsigned long scale_uv;
 
 	switch (m) {
 	case IIO_CHAN_INFO_RAW:
 		return ad_sigma_delta_single_conversion(indio_dev, chan, val);
 	case IIO_CHAN_INFO_SCALE:
-		scale_uv = (st->int_vref_mv * 100000 * st->gain)
-			>> (chan->scan_type.realbits - 1);
-		*val =  scale_uv / 100000;
-		*val2 = (scale_uv % 100000) * 10;
-		return IIO_VAL_INT_PLUS_MICRO;
+		*val = st->int_vref_mv * st->gain;
+		*val2 = chan->scan_type.realbits - 1;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	case IIO_CHAN_INFO_OFFSET:
 		*val -= (1 << (chan->scan_type.realbits - 1));
 		return IIO_VAL_INT;
-- 
cgit 


From b740f48a3d0d118b160db7c9559fb75de8af8657 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: staging:iio:ad799x: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/ad799x_core.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/iio/adc/ad799x_core.c b/drivers/staging/iio/adc/ad799x_core.c
index 3f5142b284d1..eb6a690e6e90 100644
--- a/drivers/staging/iio/adc/ad799x_core.c
+++ b/drivers/staging/iio/adc/ad799x_core.c
@@ -163,7 +163,6 @@ static int ad799x_read_raw(struct iio_dev *indio_dev,
 {
 	int ret;
 	struct ad799x_state *st = iio_priv(indio_dev);
-	unsigned int scale_uv;
 
 	switch (m) {
 	case IIO_CHAN_INFO_RAW:
@@ -180,10 +179,9 @@ static int ad799x_read_raw(struct iio_dev *indio_dev,
 			RES_MASK(chan->scan_type.realbits);
 		return IIO_VAL_INT;
 	case IIO_CHAN_INFO_SCALE:
-		scale_uv = (st->int_vref_mv * 1000) >> chan->scan_type.realbits;
-		*val =  scale_uv / 1000;
-		*val2 = (scale_uv % 1000) * 1000;
-		return IIO_VAL_INT_PLUS_MICRO;
+		*val = st->int_vref_mv;
+		*val2 = chan->scan_type.realbits;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	}
 	return -EINVAL;
 }
-- 
cgit 


From 4f9be985865f9c83ed724b62be9bb65921226221 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: staging:iio:ad7746: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/cdc/ad7746.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/iio/cdc/ad7746.c b/drivers/staging/iio/cdc/ad7746.c
index 75a533bce021..862d68d99630 100644
--- a/drivers/staging/iio/cdc/ad7746.c
+++ b/drivers/staging/iio/cdc/ad7746.c
@@ -656,20 +656,21 @@ static int ad7746_read_raw(struct iio_dev *indio_dev,
 		switch (chan->type) {
 		case IIO_CAPACITANCE:
 			/* 8.192pf / 2^24 */
-			*val2 = 488;
 			*val =  0;
+			*val2 = 488;
+			ret = IIO_VAL_INT_PLUS_NANO;
 			break;
 		case IIO_VOLTAGE:
 			/* 1170mV / 2^23 */
-			*val2 = 139475;
-			*val =  0;
+			*val = 1170;
+			*val2 = 23;
+			ret = IIO_VAL_FRACTIONAL_LOG2;
 			break;
 		default:
-			ret =  -EINVAL;
-			goto out;
+			ret = -EINVAL;
+			break;
 		}
 
-		ret = IIO_VAL_INT_PLUS_NANO;
 		break;
 	default:
 		ret = -EINVAL;
-- 
cgit 


From bfbab2bcf9718ef5e778df8a746e5f4fb8ccd4f1 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: staging:iio:spear_adc: Report scale as fractional value

Move the complexity of calculating the fixed point scale to the core.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Stefan Roese <sr@denx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/spear_adc.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/iio/adc/spear_adc.c b/drivers/staging/iio/adc/spear_adc.c
index 20f2d555e7cd..657e01bd733c 100644
--- a/drivers/staging/iio/adc/spear_adc.c
+++ b/drivers/staging/iio/adc/spear_adc.c
@@ -168,10 +168,9 @@ static int spear_read_raw(struct iio_dev *indio_dev,
 		return IIO_VAL_INT;
 
 	case IIO_CHAN_INFO_SCALE:
-		scale_mv = (info->vref_external * 1000) >> DATA_BITS;
-		*val =  scale_mv / 1000;
-		*val2 = (scale_mv % 1000) * 1000;
-		return IIO_VAL_INT_PLUS_MICRO;
+		*val = info->vref_external;
+		*val2 = DATA_BITS;
+		return IIO_VAL_FRACTIONAL_LOG2;
 	}
 
 	return -EINVAL;
-- 
cgit 


From c2b2db71014696207b24a2bafb2d26867f82dbed Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 28 Sep 2013 10:31:00 +0100
Subject: iio: Update unit of the voltage scale in the documentation

The documentation says that the result of raw * scale should be in microvolts,
but in reallity all drivers actually report the scale so that the result is in
millivolts. So update the documentation to match reallity.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 Documentation/ABI/testing/sysfs-bus-iio | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index ab1047c20495..2d73620874b2 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -79,7 +79,7 @@ Description:
 		correspond to externally available input one of the named
 		versions may be used. The number must always be specified and
 		unique to allow association with event codes. Units after
-		application of scale and offset are microvolts.
+		application of scale and offset are millivolts.
 
 What:		/sys/bus/iio/devices/iio:deviceX/in_voltageY-voltageZ_raw
 KernelVersion:	2.6.35
@@ -90,7 +90,7 @@ Description:
 		physically equivalent inputs when non differential readings are
 		separately available. In differential only parts, then all that
 		is required is a consistent labeling.  Units after application
-		of scale and offset are microvolts.
+		of scale and offset are millivolts.
 
 What:		/sys/bus/iio/devices/iio:deviceX/in_capacitanceY_raw
 KernelVersion:	3.2
-- 
cgit 


From 8a5c19132458a0e74c09aea9ccfe061edfea0151 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Thu, 19 Sep 2013 20:35:00 +0100
Subject: staging:iio:hmc5843: Add pointer to i2c client to data struct

and use it to simplify code

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/magnetometer/hmc5843.c | 61 ++++++++++++------------------
 1 file changed, 25 insertions(+), 36 deletions(-)

diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index 76e0cf43197e..05f95d0795c9 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -182,6 +182,7 @@ struct hmc5843_chip_info {
 
 /* Each client has this additional data */
 struct hmc5843_data {
+	struct i2c_client *client;
 	struct mutex lock;
 	u8 rate;
 	u8 meas_conf;
@@ -200,18 +201,15 @@ static s32 hmc5843_configure(struct i2c_client *client,
 }
 
 /* Return the measurement value from the specified channel */
-static int hmc5843_read_measurement(struct iio_dev *indio_dev,
-				    int address,
-				    int *val)
+static int hmc5843_read_measurement(struct hmc5843_data *data,
+				    int address, int *val)
 {
-	struct i2c_client *client = to_i2c_client(indio_dev->dev.parent);
-	struct hmc5843_data *data = iio_priv(indio_dev);
 	s32 result;
 	int tries = 150;
 
 	mutex_lock(&data->lock);
 	while (tries-- > 0) {
-		result = i2c_smbus_read_byte_data(client,
+		result = i2c_smbus_read_byte_data(data->client,
 			HMC5843_STATUS_REG);
 		if (result & HMC5843_DATA_READY)
 			break;
@@ -219,12 +217,12 @@ static int hmc5843_read_measurement(struct iio_dev *indio_dev,
 	}
 
 	if (tries < 0) {
-		dev_err(&client->dev, "data not ready\n");
+		dev_err(&data->client->dev, "data not ready\n");
 		mutex_unlock(&data->lock);
 		return -EIO;
 	}
 
-	result = i2c_smbus_read_word_swapped(client, address);
+	result = i2c_smbus_read_word_swapped(data->client, address);
 	mutex_unlock(&data->lock);
 	if (result < 0)
 		return -EINVAL;
@@ -318,15 +316,13 @@ static IIO_DEVICE_ATTR(operating_mode,
  *     and BN.
  *
  */
-static s32 hmc5843_set_meas_conf(struct i2c_client *client,
-				      u8 meas_conf)
+static s32 hmc5843_set_meas_conf(struct hmc5843_data *data, u8 meas_conf)
 {
-	struct iio_dev *indio_dev = i2c_get_clientdata(client);
-	struct hmc5843_data *data = iio_priv(indio_dev);
 	u8 reg_val;
 	reg_val = (meas_conf & HMC5843_MEAS_CONF_MASK) |
 		(data->rate << HMC5843_RATE_OFFSET);
-	return i2c_smbus_write_byte_data(client, HMC5843_CONFIG_REG_A, reg_val);
+	return i2c_smbus_write_byte_data(data->client, HMC5843_CONFIG_REG_A,
+		reg_val);
 }
 
 static ssize_t hmc5843_show_measurement_configuration(struct device *dev,
@@ -344,7 +340,6 @@ static ssize_t hmc5843_set_measurement_configuration(struct device *dev,
 						size_t count)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct i2c_client *client = to_i2c_client(indio_dev->dev.parent);
 	struct hmc5843_data *data = iio_priv(indio_dev);
 	unsigned long meas_conf = 0;
 	int error;
@@ -357,7 +352,7 @@ static ssize_t hmc5843_set_measurement_configuration(struct device *dev,
 
 	mutex_lock(&data->lock);
 	dev_dbg(dev, "set measurement configuration to %lu\n", meas_conf);
-	if (hmc5843_set_meas_conf(client, meas_conf)) {
+	if (hmc5843_set_meas_conf(data, meas_conf)) {
 		count = -EINVAL;
 		goto exit;
 	}
@@ -396,21 +391,19 @@ static ssize_t hmc5843_show_sampling_frequencies_available(struct device *dev,
 
 static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(hmc5843_show_sampling_frequencies_available);
 
-static s32 hmc5843_set_rate(struct i2c_client *client,
-				u8 rate)
+static s32 hmc5843_set_rate(struct hmc5843_data *data, u8 rate)
 {
-	struct iio_dev *indio_dev = i2c_get_clientdata(client);
-	struct hmc5843_data *data = iio_priv(indio_dev);
 	u8 reg_val;
 
 	if (rate >= HMC5843_RATE_NOT_USED) {
-		dev_err(&client->dev,
+		dev_err(&data->client->dev,
 			"data output rate is not supported\n");
 		return -EINVAL;
 	}
 
 	reg_val = data->meas_conf | (rate << HMC5843_RATE_OFFSET);
-	return i2c_smbus_write_byte_data(client, HMC5843_CONFIG_REG_A, reg_val);
+	return i2c_smbus_write_byte_data(data->client, HMC5843_CONFIG_REG_A,
+		reg_val);
 }
 
 static int hmc5843_check_sampling_frequency(struct hmc5843_data *data,
@@ -433,20 +426,19 @@ static ssize_t hmc5843_set_sampling_frequency(struct device *dev,
 {
 
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct i2c_client *client = to_i2c_client(indio_dev->dev.parent);
 	struct hmc5843_data *data = iio_priv(indio_dev);
 	int rate;
 
 	rate = hmc5843_check_sampling_frequency(data, buf);
 	if (rate < 0) {
-		dev_err(&client->dev,
+		dev_err(&data->client->dev,
 			"sampling frequency is not supported\n");
 		return rate;
 	}
 
 	mutex_lock(&data->lock);
 	dev_dbg(dev, "set rate to %d\n", rate);
-	if (hmc5843_set_rate(client, rate)) {
+	if (hmc5843_set_rate(data, rate)) {
 		count = -EINVAL;
 		goto exit;
 	}
@@ -461,12 +453,11 @@ static ssize_t hmc5843_show_sampling_frequency(struct device *dev,
 			struct device_attribute *attr, char *buf)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct i2c_client *client = to_i2c_client(indio_dev->dev.parent);
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	struct hmc5843_data *data = iio_priv(indio_dev);
 	s32 rate;
 
-	rate = i2c_smbus_read_byte_data(client, this_attr->address);
+	rate = i2c_smbus_read_byte_data(data->client, this_attr->address);
 	if (rate < 0)
 		return rate;
 	rate = (rate & HMC5843_RATE_BITMASK) >> HMC5843_RATE_OFFSET;
@@ -497,7 +488,6 @@ static ssize_t hmc5843_set_range_gain(struct device *dev,
 			size_t count)
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct i2c_client *client = to_i2c_client(indio_dev->dev.parent);
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	struct hmc5843_data *data = iio_priv(indio_dev);
 	unsigned long range = 0;
@@ -518,7 +508,7 @@ static ssize_t hmc5843_set_range_gain(struct device *dev,
 
 	data->range = range;
 	range = range << HMC5843_RANGE_GAIN_OFFSET;
-	if (i2c_smbus_write_byte_data(client, this_attr->address, range))
+	if (i2c_smbus_write_byte_data(data->client, this_attr->address, range))
 		count = -EINVAL;
 
 exit:
@@ -541,9 +531,7 @@ static int hmc5843_read_raw(struct iio_dev *indio_dev,
 
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
-		return hmc5843_read_measurement(indio_dev,
-						chan->address,
-						val);
+		return hmc5843_read_measurement(data, chan->address, val);
 	case IIO_CHAN_INFO_SCALE:
 		*val = 0;
 		*val2 = data->variant->regval_to_nanoscale[data->range];
@@ -621,8 +609,8 @@ static void hmc5843_init_client(struct i2c_client *client,
 	data->variant = &hmc5843_chip_info_tbl[id->driver_data];
 	indio_dev->channels = data->variant->channels;
 	indio_dev->num_channels = 3;
-	hmc5843_set_meas_conf(client, data->meas_conf);
-	hmc5843_set_rate(client, data->rate);
+	hmc5843_set_meas_conf(data, data->meas_conf);
+	hmc5843_set_rate(data, data->rate);
 	hmc5843_configure(client, data->operating_mode);
 	i2c_smbus_write_byte_data(client, HMC5843_CONFIG_REG_B, data->range);
 	mutex_init(&data->lock);
@@ -649,6 +637,7 @@ static int hmc5843_probe(struct i2c_client *client,
 
 	/* default settings at probe */
 	data = iio_priv(indio_dev);
+	data->client = client;
 	data->meas_conf = HMC5843_MEAS_CONF_NORMAL;
 	data->range = HMC5843_RANGE_GAIN_DEFAULT;
 	data->operating_mode = HMC5843_MODE_CONVERSION_CONTINUOUS;
@@ -687,10 +676,10 @@ static int hmc5843_suspend(struct device *dev)
 
 static int hmc5843_resume(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct hmc5843_data *data = iio_priv(i2c_get_clientdata(client));
+	struct hmc5843_data *data = iio_priv(i2c_get_clientdata(
+		to_i2c_client(dev)));
 
-	hmc5843_configure(client, data->operating_mode);
+	hmc5843_configure(data->client, data->operating_mode);
 
 	return 0;
 }
-- 
cgit 


From 8e2e2971b0f7135db305121efbcf703c79c4c093 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Thu, 19 Sep 2013 20:35:00 +0100
Subject: staging:iio:hmc5843: Rewrite init function

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/magnetometer/hmc5843.c | 34 ++++++++++++------------------
 1 file changed, 13 insertions(+), 21 deletions(-)

diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index 05f95d0795c9..581747419c9e 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -78,6 +78,7 @@ enum hmc5843_ids {
  * HMC5883: Typical data output rate
  */
 #define HMC5843_RATE_OFFSET			0x02
+#define HMC5843_RATE_DEFAULT			0x04
 #define HMC5843_RATE_BITMASK			0x1C
 #define HMC5843_RATE_NOT_USED			0x07
 
@@ -599,23 +600,13 @@ static const struct hmc5843_chip_info hmc5843_chip_info_tbl[] = {
 	},
 };
 
-/* Called when we have found a new HMC58X3 */
-static void hmc5843_init_client(struct i2c_client *client,
-				const struct i2c_device_id *id)
+static void hmc5843_init(struct hmc5843_data *data)
 {
-	struct iio_dev *indio_dev = i2c_get_clientdata(client);
-	struct hmc5843_data *data = iio_priv(indio_dev);
-
-	data->variant = &hmc5843_chip_info_tbl[id->driver_data];
-	indio_dev->channels = data->variant->channels;
-	indio_dev->num_channels = 3;
-	hmc5843_set_meas_conf(data, data->meas_conf);
-	hmc5843_set_rate(data, data->rate);
-	hmc5843_configure(client, data->operating_mode);
-	i2c_smbus_write_byte_data(client, HMC5843_CONFIG_REG_B, data->range);
-	mutex_init(&data->lock);
-
-	pr_info("%s initialized\n", id->name);
+	hmc5843_set_meas_conf(data, HMC5843_MEAS_CONF_NORMAL);
+	hmc5843_set_rate(data, HMC5843_RATE_DEFAULT);
+	hmc5843_configure(data->client, HMC5843_MODE_CONVERSION_CONTINUOUS);
+	i2c_smbus_write_byte_data(data->client, HMC5843_CONFIG_REG_B,
+		HMC5843_RANGE_GAIN_DEFAULT);
 }
 
 static const struct iio_info hmc5843_info = {
@@ -638,17 +629,18 @@ static int hmc5843_probe(struct i2c_client *client,
 	/* default settings at probe */
 	data = iio_priv(indio_dev);
 	data->client = client;
-	data->meas_conf = HMC5843_MEAS_CONF_NORMAL;
-	data->range = HMC5843_RANGE_GAIN_DEFAULT;
-	data->operating_mode = HMC5843_MODE_CONVERSION_CONTINUOUS;
+	data->variant = &hmc5843_chip_info_tbl[id->driver_data];
+	mutex_init(&data->lock);
 
 	i2c_set_clientdata(client, indio_dev);
-	hmc5843_init_client(client, id);
-
 	indio_dev->info = &hmc5843_info;
 	indio_dev->name = id->name;
 	indio_dev->dev.parent = &client->dev;
 	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->channels = data->variant->channels;
+	indio_dev->num_channels = 3;
+
+	hmc5843_init(data);
 
 	err = iio_device_register(indio_dev);
 	if (err)
-- 
cgit 


From d4dc0a349ee48832550f9aea154ca3af37f244ec Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Thu, 19 Sep 2013 20:35:00 +0100
Subject: staging:iio:hmc5843: Use INFO_SAMP_FREQ

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/magnetometer/hmc5843.c | 135 ++++++++++++-----------------
 1 file changed, 54 insertions(+), 81 deletions(-)

diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index 581747419c9e..6e813622ded8 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -165,18 +165,19 @@ static const int hmc5883l_regval_to_input_field_mga[] = {
  * 6		| 50			| 75
  * 7		| Not used		| Not used
  */
-static const char * const hmc5843_regval_to_sample_freq[] = {
-	"0.5", "1", "2", "5", "10", "20", "50",
+static const int hmc5843_regval_to_samp_freq[7][2] = {
+	{0, 500000}, {1, 0}, {2, 0}, {5, 0}, {10, 0}, {20, 0}, {50, 0}
 };
 
-static const char * const hmc5883_regval_to_sample_freq[] = {
-	"0.75", "1.5", "3", "7.5", "15", "30", "75",
+static const int hmc5883_regval_to_samp_freq[7][2] = {
+	{0, 750000}, {1, 500000}, {3, 0}, {7, 500000}, {15, 0}, {30, 0},
+	{75, 0}
 };
 
 /* Describe chip variants */
 struct hmc5843_chip_info {
 	const struct iio_chan_spec *channels;
-	const char * const *regval_to_sample_freq;
+	const int (*regval_to_samp_freq)[2];
 	const int *regval_to_input_field_mga;
 	const int *regval_to_nanoscale;
 };
@@ -370,17 +371,17 @@ static IIO_DEVICE_ATTR(meas_conf,
 			hmc5843_set_measurement_configuration,
 			0);
 
-static ssize_t hmc5843_show_sampling_frequencies_available(struct device *dev,
-						struct device_attribute *attr,
-						char *buf)
+static ssize_t hmc5843_show_samp_freq_avail(struct device *dev,
+				struct device_attribute *attr, char *buf)
 {
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct hmc5843_data *data = iio_priv(indio_dev);
+	struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev));
 	ssize_t total_n = 0;
 	int i;
 
 	for (i = 0; i < HMC5843_RATE_NOT_USED; i++) {
-		ssize_t n = sprintf(buf, "%s ", data->variant->regval_to_sample_freq[i]);
+		ssize_t n = sprintf(buf, "%d.%d ",
+			data->variant->regval_to_samp_freq[i][0],
+			data->variant->regval_to_samp_freq[i][1]);
 		buf += n;
 		total_n += n;
 	}
@@ -390,87 +391,30 @@ static ssize_t hmc5843_show_sampling_frequencies_available(struct device *dev,
 	return total_n;
 }
 
-static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(hmc5843_show_sampling_frequencies_available);
+static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(hmc5843_show_samp_freq_avail);
 
 static s32 hmc5843_set_rate(struct hmc5843_data *data, u8 rate)
 {
-	u8 reg_val;
-
-	if (rate >= HMC5843_RATE_NOT_USED) {
-		dev_err(&data->client->dev,
-			"data output rate is not supported\n");
-		return -EINVAL;
-	}
+	u8 reg_val = data->meas_conf | (rate << HMC5843_RATE_OFFSET);
 
-	reg_val = data->meas_conf | (rate << HMC5843_RATE_OFFSET);
 	return i2c_smbus_write_byte_data(data->client, HMC5843_CONFIG_REG_A,
 		reg_val);
 }
 
-static int hmc5843_check_sampling_frequency(struct hmc5843_data *data,
-						const char *buf)
+static int hmc5843_check_samp_freq(struct hmc5843_data *data,
+				   int val, int val2)
 {
-	const char * const *samp_freq = data->variant->regval_to_sample_freq;
 	int i;
 
 	for (i = 0; i < HMC5843_RATE_NOT_USED; i++) {
-		if (sysfs_streq(buf, samp_freq[i]))
+		if (val == data->variant->regval_to_samp_freq[i][0] &&
+		    val2 == data->variant->regval_to_samp_freq[i][1])
 			return i;
 	}
 
 	return -EINVAL;
 }
 
-static ssize_t hmc5843_set_sampling_frequency(struct device *dev,
-					struct device_attribute *attr,
-					const char *buf, size_t count)
-{
-
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct hmc5843_data *data = iio_priv(indio_dev);
-	int rate;
-
-	rate = hmc5843_check_sampling_frequency(data, buf);
-	if (rate < 0) {
-		dev_err(&data->client->dev,
-			"sampling frequency is not supported\n");
-		return rate;
-	}
-
-	mutex_lock(&data->lock);
-	dev_dbg(dev, "set rate to %d\n", rate);
-	if (hmc5843_set_rate(data, rate)) {
-		count = -EINVAL;
-		goto exit;
-	}
-	data->rate = rate;
-
-exit:
-	mutex_unlock(&data->lock);
-	return count;
-}
-
-static ssize_t hmc5843_show_sampling_frequency(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	struct hmc5843_data *data = iio_priv(indio_dev);
-	s32 rate;
-
-	rate = i2c_smbus_read_byte_data(data->client, this_attr->address);
-	if (rate < 0)
-		return rate;
-	rate = (rate & HMC5843_RATE_BITMASK) >> HMC5843_RATE_OFFSET;
-	return sprintf(buf, "%s\n", data->variant->regval_to_sample_freq[rate]);
-}
-
-static IIO_DEVICE_ATTR(sampling_frequency,
-			S_IWUSR | S_IRUGO,
-			hmc5843_show_sampling_frequency,
-			hmc5843_set_sampling_frequency,
-			HMC5843_CONFIG_REG_A);
-
 static ssize_t hmc5843_show_range_gain(struct device *dev,
 				struct device_attribute *attr,
 				char *buf)
@@ -525,8 +469,7 @@ static IIO_DEVICE_ATTR(in_magn_range,
 
 static int hmc5843_read_raw(struct iio_dev *indio_dev,
 			    struct iio_chan_spec const *chan,
-			    int *val, int *val2,
-			    long mask)
+			    int *val, int *val2, long mask)
 {
 	struct hmc5843_data *data = iio_priv(indio_dev);
 
@@ -537,17 +480,47 @@ static int hmc5843_read_raw(struct iio_dev *indio_dev,
 		*val = 0;
 		*val2 = data->variant->regval_to_nanoscale[data->range];
 		return IIO_VAL_INT_PLUS_NANO;
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		*val = data->variant->regval_to_samp_freq[data->rate][0];
+		*val2 = data->variant->regval_to_samp_freq[data->rate][1];
+		return IIO_VAL_INT_PLUS_MICRO;
 	}
 	return -EINVAL;
 }
 
+static int hmc5843_write_raw(struct iio_dev *indio_dev,
+			     struct iio_chan_spec const *chan,
+			     int val, int val2, long mask)
+{
+	struct hmc5843_data *data = iio_priv(indio_dev);
+	int ret, rate;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		rate = hmc5843_check_samp_freq(data, val, val2);
+		if (rate < 0)
+			return -EINVAL;
+
+		mutex_lock(&data->lock);
+		ret = hmc5843_set_rate(data, rate);
+		if (ret >= 0)
+			data->rate = rate;
+		mutex_unlock(&data->lock);
+
+		return ret;
+	default:
+		return -EINVAL;
+	}
+}
+
 #define HMC5843_CHANNEL(axis, addr)					\
 	{								\
 		.type = IIO_MAGN,					\
 		.modified = 1,						\
 		.channel2 = IIO_MOD_##axis,				\
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),		\
-		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),	\
+		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) |	\
+			BIT(IIO_CHAN_INFO_SAMP_FREQ),			\
 		.address = addr						\
 	}
 
@@ -566,7 +539,6 @@ static const struct iio_chan_spec hmc5883_channels[] = {
 static struct attribute *hmc5843_attributes[] = {
 	&iio_dev_attr_meas_conf.dev_attr.attr,
 	&iio_dev_attr_operating_mode.dev_attr.attr,
-	&iio_dev_attr_sampling_frequency.dev_attr.attr,
 	&iio_dev_attr_in_magn_range.dev_attr.attr,
 	&iio_dev_attr_sampling_frequency_available.dev_attr.attr,
 	NULL
@@ -579,21 +551,21 @@ static const struct attribute_group hmc5843_group = {
 static const struct hmc5843_chip_info hmc5843_chip_info_tbl[] = {
 	[HMC5843_ID] = {
 		.channels = hmc5843_channels,
-		.regval_to_sample_freq = hmc5843_regval_to_sample_freq,
+		.regval_to_samp_freq = hmc5843_regval_to_samp_freq,
 		.regval_to_input_field_mga =
 			hmc5843_regval_to_input_field_mga,
 		.regval_to_nanoscale = hmc5843_regval_to_nanoscale,
 	},
 	[HMC5883_ID] = {
 		.channels = hmc5883_channels,
-		.regval_to_sample_freq = hmc5883_regval_to_sample_freq,
+		.regval_to_samp_freq = hmc5883_regval_to_samp_freq,
 		.regval_to_input_field_mga =
 			hmc5883_regval_to_input_field_mga,
 		.regval_to_nanoscale = hmc5883_regval_to_nanoscale,
 	},
 	[HMC5883L_ID] = {
 		.channels = hmc5883_channels,
-		.regval_to_sample_freq = hmc5883_regval_to_sample_freq,
+		.regval_to_samp_freq = hmc5883_regval_to_samp_freq,
 		.regval_to_input_field_mga =
 			hmc5883l_regval_to_input_field_mga,
 		.regval_to_nanoscale = hmc5883l_regval_to_nanoscale,
@@ -612,6 +584,7 @@ static void hmc5843_init(struct hmc5843_data *data)
 static const struct iio_info hmc5843_info = {
 	.attrs = &hmc5843_group,
 	.read_raw = &hmc5843_read_raw,
+	.write_raw = &hmc5843_write_raw,
 	.driver_module = THIS_MODULE,
 };
 
-- 
cgit 


From 511c81e64a21b2d1a3f72e998a6933321ea31a04 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Thu, 19 Sep 2013 20:35:00 +0100
Subject: staging:iio:hmc5843: Remove unused LSB register #defines

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/magnetometer/hmc5843.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index 6e813622ded8..e103172a96a1 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -29,16 +29,11 @@
 #define HMC5843_CONFIG_REG_B			0x01
 #define HMC5843_MODE_REG			0x02
 #define HMC5843_DATA_OUT_X_MSB_REG		0x03
-#define HMC5843_DATA_OUT_X_LSB_REG		0x04
 #define HMC5843_DATA_OUT_Y_MSB_REG		0x05
-#define HMC5843_DATA_OUT_Y_LSB_REG		0x06
 #define HMC5843_DATA_OUT_Z_MSB_REG		0x07
-#define HMC5843_DATA_OUT_Z_LSB_REG		0x08
 /* Beware: Y and Z are exchanged on HMC5883 */
 #define HMC5883_DATA_OUT_Z_MSB_REG		0x05
-#define HMC5883_DATA_OUT_Z_LSB_REG		0x06
 #define HMC5883_DATA_OUT_Y_MSB_REG		0x07
-#define HMC5883_DATA_OUT_Y_LSB_REG		0x08
 #define HMC5843_STATUS_REG			0x09
 
 enum hmc5843_ids {
@@ -61,8 +56,6 @@ enum hmc5843_ids {
  */
 #define HMC5843_DATA_READY			0x01
 #define HMC5843_DATA_OUTPUT_LOCK		0x02
-/* Does not exist on HMC5883, not used */
-#define HMC5843_VOLTAGE_REGULATOR_ENABLED	0x04
 
 /*
  * Mode register configuration
-- 
cgit 


From 9728fe3f8fee9eca682a452b2d615df5d653ff3a Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Thu, 19 Sep 2013 20:35:00 +0100
Subject: staging:iio:hmc5843: Tighten comments

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/magnetometer/hmc5843.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index e103172a96a1..022f455f9854 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -51,15 +51,11 @@ enum hmc5843_ids {
 #define HMC5843_RANGE_GAIN_DEFAULT		0x01
 #define HMC5843_RANGE_GAIN_MAX			0x07
 
-/*
- * Device status
- */
+/* Device status */
 #define HMC5843_DATA_READY			0x01
 #define HMC5843_DATA_OUTPUT_LOCK		0x02
 
-/*
- * Mode register configuration
- */
+/* Mode register configuration */
 #define HMC5843_MODE_CONVERSION_CONTINUOUS	0x00
 #define HMC5843_MODE_CONVERSION_SINGLE		0x01
 #define HMC5843_MODE_IDLE			0x02
@@ -75,18 +71,14 @@ enum hmc5843_ids {
 #define HMC5843_RATE_BITMASK			0x1C
 #define HMC5843_RATE_NOT_USED			0x07
 
-/*
- * Device measurement configuration
- */
+/* Device measurement configuration */
 #define HMC5843_MEAS_CONF_NORMAL		0x00
 #define HMC5843_MEAS_CONF_POSITIVE_BIAS		0x01
 #define HMC5843_MEAS_CONF_NEGATIVE_BIAS		0x02
 #define HMC5843_MEAS_CONF_NOT_USED		0x03
 #define HMC5843_MEAS_CONF_MASK			0x03
 
-/*
- * Scaling factors: 10000000/Gain
- */
+/* Scaling factors: 10000000/Gain */
 static const int hmc5843_regval_to_nanoscale[] = {
 	6173, 7692, 10309, 12821, 18868, 21739, 25641, 35714
 };
-- 
cgit 


From dd28e48278eb2ad5b542b4aa36f28e6251451a73 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Thu, 19 Sep 2013 20:35:00 +0100
Subject: staging:iio:hmc5843: Introduce helper functions to show/check list of
 int pairs

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/magnetometer/hmc5843.c | 56 ++++++++++++++++++------------
 1 file changed, 34 insertions(+), 22 deletions(-)

diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index 022f455f9854..b29622c6f157 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -356,24 +356,42 @@ static IIO_DEVICE_ATTR(meas_conf,
 			hmc5843_set_measurement_configuration,
 			0);
 
-static ssize_t hmc5843_show_samp_freq_avail(struct device *dev,
-				struct device_attribute *attr, char *buf)
+static ssize_t hmc5843_show_int_plus_micros(char *buf,
+	const int (*vals)[2], int n)
 {
-	struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev));
-	ssize_t total_n = 0;
+	size_t len = 0;
 	int i;
 
-	for (i = 0; i < HMC5843_RATE_NOT_USED; i++) {
-		ssize_t n = sprintf(buf, "%d.%d ",
-			data->variant->regval_to_samp_freq[i][0],
-			data->variant->regval_to_samp_freq[i][1]);
-		buf += n;
-		total_n += n;
-	}
+	for (i = 0; i < n; i++)
+		len += scnprintf(buf + len, PAGE_SIZE - len,
+			"%d.%d ", vals[i][0], vals[i][1]);
+
 	/* replace trailing space by newline */
-	buf[-1] = '\n';
+	buf[len - 1] = '\n';
+
+	return len;
+}
 
-	return total_n;
+static int hmc5843_check_int_plus_micros(const int (*vals)[2], int n,
+					int val, int val2)
+{
+	int i;
+
+	for (i = 0; i < n; i++) {
+		if (val == vals[i][0] && val2 == vals[i][1])
+			return i;
+	}
+
+	return -EINVAL;
+}
+
+static ssize_t hmc5843_show_samp_freq_avail(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev));
+
+	return hmc5843_show_int_plus_micros(buf,
+		data->variant->regval_to_samp_freq, HMC5843_RATE_NOT_USED);
 }
 
 static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(hmc5843_show_samp_freq_avail);
@@ -389,15 +407,9 @@ static s32 hmc5843_set_rate(struct hmc5843_data *data, u8 rate)
 static int hmc5843_check_samp_freq(struct hmc5843_data *data,
 				   int val, int val2)
 {
-	int i;
-
-	for (i = 0; i < HMC5843_RATE_NOT_USED; i++) {
-		if (val == data->variant->regval_to_samp_freq[i][0] &&
-		    val2 == data->variant->regval_to_samp_freq[i][1])
-			return i;
-	}
-
-	return -EINVAL;
+	return hmc5843_check_int_plus_micros(
+		data->variant->regval_to_samp_freq, HMC5843_RATE_NOT_USED,
+		val, val2);
 }
 
 static ssize_t hmc5843_show_range_gain(struct device *dev,
-- 
cgit 


From 18da755de59b406ce2371a55fb15ed676eb08ed2 Mon Sep 17 00:00:00 2001
From: Juergen Beisert <jbe@pengutronix.de>
Date: Mon, 23 Sep 2013 15:36:00 +0100
Subject: Staging/iio/adc/touchscreen/MXS: add proper clock handling
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The delay units inside the LRADC depend on the presence of a 2 kHz clock.
This change enables the clock to be able to use the delay unit for the
touchscreen part of the driver.

Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Tested-by: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 arch/arm/boot/dts/imx23.dtsi        |  1 +
 arch/arm/boot/dts/imx28.dtsi        |  1 +
 drivers/staging/iio/adc/mxs-lradc.c | 15 +++++++++++++++
 3 files changed, 17 insertions(+)

diff --git a/arch/arm/boot/dts/imx23.dtsi b/arch/arm/boot/dts/imx23.dtsi
index 28b5ce289662..07caf767d428 100644
--- a/arch/arm/boot/dts/imx23.dtsi
+++ b/arch/arm/boot/dts/imx23.dtsi
@@ -430,6 +430,7 @@
 				reg = <0x80050000 0x2000>;
 				interrupts = <36 37 38 39 40 41 42 43 44>;
 				status = "disabled";
+				clocks = <&clks 26>;
 			};
 
 			spdif@80054000 {
diff --git a/arch/arm/boot/dts/imx28.dtsi b/arch/arm/boot/dts/imx28.dtsi
index 7363fded95ee..175deefb048b 100644
--- a/arch/arm/boot/dts/imx28.dtsi
+++ b/arch/arm/boot/dts/imx28.dtsi
@@ -902,6 +902,7 @@
 				interrupts = <10 14 15 16 17 18 19
 						20 21 22 23 24 25>;
 				status = "disabled";
+				clocks = <&clks 41>;
 			};
 
 			spdif: spdif@80054000 {
diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index 9da64bf00039..93b25ca433cb 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -35,6 +35,7 @@
 #include <linux/completion.h>
 #include <linux/delay.h>
 #include <linux/input.h>
+#include <linux/clk.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/buffer.h>
@@ -134,6 +135,8 @@ struct mxs_lradc {
 	void __iomem		*base;
 	int			irq[13];
 
+	struct clk		*clk;
+
 	uint32_t		*buffer;
 	struct iio_trigger	*trig;
 
@@ -922,6 +925,17 @@ static int mxs_lradc_probe(struct platform_device *pdev)
 	if (IS_ERR(lradc->base))
 		return PTR_ERR(lradc->base);
 
+	lradc->clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(lradc->clk)) {
+		dev_err(dev, "Failed to get the delay unit clock\n");
+		return PTR_ERR(lradc->clk);
+	}
+	ret = clk_prepare_enable(lradc->clk);
+	if (ret != 0) {
+		dev_err(dev, "Failed to enable the delay unit clock\n");
+		return ret;
+	}
+
 	INIT_WORK(&lradc->ts_work, mxs_lradc_ts_work);
 
 	/* Check if touchscreen is enabled in DT. */
@@ -1014,6 +1028,7 @@ static int mxs_lradc_remove(struct platform_device *pdev)
 	mxs_lradc_trigger_remove(iio);
 	iio_triggered_buffer_cleanup(iio);
 
+	clk_disable_unprepare(lradc->clk);
 	return 0;
 }
 
-- 
cgit 


From ccff52976383c7aff13588e81f23eddaac1dcd05 Mon Sep 17 00:00:00 2001
From: Juergen Beisert <jbe@pengutronix.de>
Date: Mon, 23 Sep 2013 15:36:00 +0100
Subject: Staging/iio/adc/touchscreen/MXS: distinguish i.MX23's and i.MX28's
 LRADC
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The LRADC units in i.MX23 and i.MX28 differ and we need to distinguish both
SoC variants in order to make the touchscreen work on i.MX23

Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Tested-by: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

CC: linux-arm-kernel@lists.infradead.org
CC: linux-input@vger.kernel.org
CC: devel@driverdev.osuosl.org
CC: Fabio Estevam <fabio.estevam@freescale.com>
CC: Jonathan Cameron <jic23@cam.ac.uk>
---
 drivers/staging/iio/adc/mxs-lradc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index 93b25ca433cb..1a1219b82233 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -177,6 +177,8 @@ struct mxs_lradc {
 
 	struct input_dev	*ts_input;
 	struct work_struct	ts_work;
+
+	enum mxs_lradc_id	soc;
 };
 
 #define	LRADC_CTRL0				0x00
@@ -917,6 +919,7 @@ static int mxs_lradc_probe(struct platform_device *pdev)
 	}
 
 	lradc = iio_priv(iio);
+	lradc->soc = (enum mxs_lradc_id)of_id->data;
 
 	/* Grab the memory area */
 	iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-- 
cgit 


From 7e4d4a6fdb24aeee633a0e19d1ff21a6ec61cedb Mon Sep 17 00:00:00 2001
From: Juergen Beisert <jbe@pengutronix.de>
Date: Mon, 23 Sep 2013 15:36:00 +0100
Subject: Staging/iio/adc/touchscreen/MXS: separate i.MX28 specific register
 bits
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

In order to support i.MX23 and i.MX28 within one driver we need to separate the
register definitions which differ in both SoC variants.

Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Tested-by: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

CC: linux-arm-kernel@lists.infradead.org
CC: linux-input@vger.kernel.org
CC: devel@driverdev.osuosl.org
CC: Marek Vasut <marex@denx.de>
CC: Fabio Estevam <fabio.estevam@freescale.com>
---
 drivers/staging/iio/adc/mxs-lradc.c | 61 ++++++++++++++++++++-----------------
 1 file changed, 33 insertions(+), 28 deletions(-)

diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index 1a1219b82233..1b99d27d4384 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -182,24 +182,29 @@ struct mxs_lradc {
 };
 
 #define	LRADC_CTRL0				0x00
-#define	LRADC_CTRL0_TOUCH_DETECT_ENABLE		(1 << 23)
-#define	LRADC_CTRL0_TOUCH_SCREEN_TYPE		(1 << 22)
-#define	LRADC_CTRL0_YNNSW	/* YM */	(1 << 21)
-#define	LRADC_CTRL0_YPNSW	/* YP */	(1 << 20)
-#define	LRADC_CTRL0_YPPSW	/* YP */	(1 << 19)
-#define	LRADC_CTRL0_XNNSW	/* XM */	(1 << 18)
-#define	LRADC_CTRL0_XNPSW	/* XM */	(1 << 17)
-#define	LRADC_CTRL0_XPPSW	/* XP */	(1 << 16)
-#define	LRADC_CTRL0_PLATE_MASK			(0x3f << 16)
+# define LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE	(1 << 23)
+# define LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE	(1 << 22)
+# define LRADC_CTRL0_MX28_YNNSW	/* YM */	(1 << 21)
+# define LRADC_CTRL0_MX28_YPNSW	/* YP */	(1 << 20)
+# define LRADC_CTRL0_MX28_YPPSW	/* YP */	(1 << 19)
+# define LRADC_CTRL0_MX28_XNNSW	/* XM */	(1 << 18)
+# define LRADC_CTRL0_MX28_XNPSW	/* XM */	(1 << 17)
+# define LRADC_CTRL0_MX28_XPPSW	/* XP */	(1 << 16)
+
+# define LRADC_CTRL0_MX28_PLATE_MASK \
+		(LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE | \
+		LRADC_CTRL0_MX28_YNNSW | LRADC_CTRL0_MX28_YPNSW | \
+		LRADC_CTRL0_MX28_YPPSW | LRADC_CTRL0_MX28_XNNSW | \
+		LRADC_CTRL0_MX28_XNPSW | LRADC_CTRL0_MX28_XPPSW)
 
 #define	LRADC_CTRL1				0x10
 #define	LRADC_CTRL1_TOUCH_DETECT_IRQ_EN		(1 << 24)
 #define	LRADC_CTRL1_LRADC_IRQ_EN(n)		(1 << ((n) + 16))
-#define	LRADC_CTRL1_LRADC_IRQ_EN_MASK		(0x1fff << 16)
+#define	LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK	(0x1fff << 16)
 #define	LRADC_CTRL1_LRADC_IRQ_EN_OFFSET		16
 #define	LRADC_CTRL1_TOUCH_DETECT_IRQ		(1 << 8)
 #define	LRADC_CTRL1_LRADC_IRQ(n)		(1 << (n))
-#define	LRADC_CTRL1_LRADC_IRQ_MASK		0x1fff
+#define	LRADC_CTRL1_MX28_LRADC_IRQ_MASK		0x1fff
 #define	LRADC_CTRL1_LRADC_IRQ_OFFSET		0
 
 #define	LRADC_CTRL2				0x20
@@ -267,7 +272,7 @@ static int mxs_lradc_read_raw(struct iio_dev *iio_dev,
 	 * Virtual channel 0 is always used here as the others are always not
 	 * used if doing raw sampling.
 	 */
-	writel(LRADC_CTRL1_LRADC_IRQ_EN_MASK,
+	writel(LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
 		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
 	writel(0xff, lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
 
@@ -322,9 +327,9 @@ static int mxs_lradc_ts_touched(struct mxs_lradc *lradc)
 	uint32_t reg;
 
 	/* Enable touch detection. */
-	writel(LRADC_CTRL0_PLATE_MASK,
+	writel(LRADC_CTRL0_MX28_PLATE_MASK,
 		lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
-	writel(LRADC_CTRL0_TOUCH_DETECT_ENABLE,
+	writel(LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE,
 		lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_SET);
 
 	msleep(LRADC_TS_SAMPLE_DELAY_MS);
@@ -370,21 +375,21 @@ static int32_t mxs_lradc_ts_sample(struct mxs_lradc *lradc,
 	 */
 	switch (plate) {
 	case LRADC_SAMPLE_X:
-		ctrl0 = LRADC_CTRL0_XPPSW | LRADC_CTRL0_XNNSW;
+		ctrl0 = LRADC_CTRL0_MX28_XPPSW | LRADC_CTRL0_MX28_XNNSW;
 		chan = 3;
 		break;
 	case LRADC_SAMPLE_Y:
-		ctrl0 = LRADC_CTRL0_YPPSW | LRADC_CTRL0_YNNSW;
+		ctrl0 = LRADC_CTRL0_MX28_YPPSW | LRADC_CTRL0_MX28_YNNSW;
 		chan = 4;
 		break;
 	case LRADC_SAMPLE_PRESSURE:
-		ctrl0 = LRADC_CTRL0_YPPSW | LRADC_CTRL0_XNNSW;
+		ctrl0 = LRADC_CTRL0_MX28_YPPSW | LRADC_CTRL0_MX28_XNNSW;
 		chan = 5;
 		break;
 	}
 
 	if (change) {
-		writel(LRADC_CTRL0_PLATE_MASK,
+		writel(LRADC_CTRL0_MX28_PLATE_MASK,
 			lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
 		writel(ctrl0, lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_SET);
 
@@ -445,7 +450,7 @@ static void mxs_lradc_ts_work(struct work_struct *ts_work)
 
 	while (mxs_lradc_ts_touched(lradc)) {
 		/* Disable touch detector so we can sample the touchscreen. */
-		writel(LRADC_CTRL0_TOUCH_DETECT_ENABLE,
+		writel(LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE,
 			lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
 
 		if (likely(valid)) {
@@ -494,7 +499,7 @@ static int mxs_lradc_ts_open(struct input_dev *dev)
 	lradc->stop_touchscreen = false;
 
 	/* Enable the touch-detect circuitry. */
-	writel(LRADC_CTRL0_TOUCH_DETECT_ENABLE,
+	writel(LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE,
 		lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_SET);
 
 	/* Enable the touch-detect IRQ. */
@@ -520,7 +525,7 @@ static void mxs_lradc_ts_close(struct input_dev *dev)
 		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
 
 	/* Power-down touchscreen touch-detect circuitry. */
-	writel(LRADC_CTRL0_TOUCH_DETECT_ENABLE,
+	writel(LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE,
 		lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
 }
 
@@ -584,7 +589,7 @@ static irqreturn_t mxs_lradc_handle_irq(int irq, void *data)
 		LRADC_CTRL1_TOUCH_DETECT_IRQ_EN |
 		LRADC_CTRL1_TOUCH_DETECT_IRQ;
 
-	if (!(reg & LRADC_CTRL1_LRADC_IRQ_MASK))
+	if (!(reg & LRADC_CTRL1_MX28_LRADC_IRQ_MASK))
 		return IRQ_NONE;
 
 	/*
@@ -604,7 +609,7 @@ static irqreturn_t mxs_lradc_handle_irq(int irq, void *data)
 	else if (reg & LRADC_CTRL1_LRADC_IRQ(0))
 		complete(&lradc->completion);
 
-	writel(reg & LRADC_CTRL1_LRADC_IRQ_MASK,
+	writel(reg & LRADC_CTRL1_MX28_LRADC_IRQ_MASK,
 		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
 
 	return IRQ_HANDLED;
@@ -719,7 +724,7 @@ static int mxs_lradc_buffer_preenable(struct iio_dev *iio)
 	if (ret < 0)
 		goto err_buf;
 
-	writel(LRADC_CTRL1_LRADC_IRQ_EN_MASK,
+	writel(LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
 		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
 	writel(0xff, lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
 
@@ -760,7 +765,7 @@ static int mxs_lradc_buffer_postdisable(struct iio_dev *iio)
 		lradc->base + LRADC_DELAY(0) + STMP_OFFSET_REG_CLR);
 
 	writel(0xff, lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
-	writel(LRADC_CTRL1_LRADC_IRQ_EN_MASK,
+	writel(LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
 		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
 
 	kfree(lradc->buffer);
@@ -864,11 +869,11 @@ static int mxs_lradc_hw_init(struct mxs_lradc *lradc)
 	writel(0, lradc->base + LRADC_DELAY(3));
 
 	/* Configure the touchscreen type */
-	writel(LRADC_CTRL0_TOUCH_SCREEN_TYPE,
+	writel(LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE,
 		lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
 
 	if (lradc->use_touchscreen == MXS_LRADC_TOUCHSCREEN_5WIRE) {
-		writel(LRADC_CTRL0_TOUCH_SCREEN_TYPE,
+		writel(LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE,
 			lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_SET);
 	}
 
@@ -882,7 +887,7 @@ static void mxs_lradc_hw_stop(struct mxs_lradc *lradc)
 {
 	int i;
 
-	writel(LRADC_CTRL1_LRADC_IRQ_EN_MASK,
+	writel(LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
 		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
 
 	for (i = 0; i < LRADC_MAX_DELAY_CHANS; i++)
-- 
cgit 


From f0b83cc84678dadfd62e9cb6ed504dd126bfdc31 Mon Sep 17 00:00:00 2001
From: Juergen Beisert <jbe@pengutronix.de>
Date: Mon, 23 Sep 2013 15:36:00 +0100
Subject: Staging/iio/adc/touchscreen/MXS: simplify register access
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Replace the individual register access by a few shared access function to make the
code easier to read and in order to add the i.MX23 SoC in the next step.

Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Tested-by: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

CC: linux-arm-kernel@lists.infradead.org
CC: linux-input@vger.kernel.org
CC: devel@driverdev.osuosl.org
CC: Marek Vasut <marex@denx.de>
CC: Fabio Estevam <fabio.estevam@freescale.com>
---
 drivers/staging/iio/adc/mxs-lradc.c | 204 +++++++++++++++++++++---------------
 1 file changed, 120 insertions(+), 84 deletions(-)

diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index 1b99d27d4384..866b8f11d9fe 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -238,6 +238,56 @@ struct mxs_lradc {
 #define LRADC_RESOLUTION			12
 #define LRADC_SINGLE_SAMPLE_MASK		((1 << LRADC_RESOLUTION) - 1)
 
+static void mxs_lradc_reg_set(struct mxs_lradc *lradc, u32 val, u32 reg)
+{
+	writel(val, lradc->base + reg + STMP_OFFSET_REG_SET);
+}
+
+static void mxs_lradc_reg_clear(struct mxs_lradc *lradc, u32 val, u32 reg)
+{
+	writel(val, lradc->base + reg + STMP_OFFSET_REG_CLR);
+}
+
+static void mxs_lradc_reg_wrt(struct mxs_lradc *lradc, u32 val, u32 reg)
+{
+	writel(val, lradc->base + reg);
+}
+
+static u32 mxs_lradc_plate_mask(struct mxs_lradc *lradc)
+{
+	return LRADC_CTRL0_MX28_PLATE_MASK;
+}
+
+static u32 mxs_lradc_irq_en_mask(struct mxs_lradc *lradc)
+{
+	return LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK;
+}
+
+static u32 mxs_lradc_irq_mask(struct mxs_lradc *lradc)
+{
+	return LRADC_CTRL1_MX28_LRADC_IRQ_MASK;
+}
+
+static u32 mxs_lradc_touch_detect_bit(struct mxs_lradc *lradc)
+{
+	return LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE;
+}
+
+static u32 mxs_lradc_drive_x_plate(struct mxs_lradc *lradc)
+{
+	return LRADC_CTRL0_MX28_XPPSW | LRADC_CTRL0_MX28_XNNSW;
+}
+
+static u32 mxs_lradc_drive_y_plate(struct mxs_lradc *lradc)
+{
+	return LRADC_CTRL0_MX28_YPPSW | LRADC_CTRL0_MX28_YNNSW;
+}
+
+static u32 mxs_lradc_drive_pressure(struct mxs_lradc *lradc)
+{
+	return LRADC_CTRL0_MX28_YPPSW | LRADC_CTRL0_MX28_XNNSW;
+}
+
 /*
  * Raw I/O operations
  */
@@ -272,21 +322,19 @@ static int mxs_lradc_read_raw(struct iio_dev *iio_dev,
 	 * Virtual channel 0 is always used here as the others are always not
 	 * used if doing raw sampling.
 	 */
-	writel(LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
-		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
-	writel(0xff, lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
+	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
+			LRADC_CTRL1);
+	mxs_lradc_reg_clear(lradc, 0xff, LRADC_CTRL0);
 
 	/* Clean the slot's previous content, then set new one. */
-	writel(LRADC_CTRL4_LRADCSELECT_MASK(0),
-		lradc->base + LRADC_CTRL4 + STMP_OFFSET_REG_CLR);
-	writel(chan->channel, lradc->base + LRADC_CTRL4 + STMP_OFFSET_REG_SET);
+	mxs_lradc_reg_clear(lradc, LRADC_CTRL4_LRADCSELECT_MASK(0), LRADC_CTRL4);
+	mxs_lradc_reg_set(lradc, chan->channel, LRADC_CTRL4);
 
-	writel(0, lradc->base + LRADC_CH(0));
+	mxs_lradc_reg_wrt(lradc, 0, LRADC_CH(0));
 
 	/* Enable the IRQ and start sampling the channel. */
-	writel(LRADC_CTRL1_LRADC_IRQ_EN(0),
-		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_SET);
-	writel(1 << 0, lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_SET);
+	mxs_lradc_reg_set(lradc, LRADC_CTRL1_LRADC_IRQ_EN(0), LRADC_CTRL1);
+	mxs_lradc_reg_set(lradc, 1 << 0, LRADC_CTRL0);
 
 	/* Wait for completion on the channel, 1 second max. */
 	ret = wait_for_completion_killable_timeout(&lradc->completion, HZ);
@@ -300,8 +348,7 @@ static int mxs_lradc_read_raw(struct iio_dev *iio_dev,
 	ret = IIO_VAL_INT;
 
 err:
-	writel(LRADC_CTRL1_LRADC_IRQ_EN(0),
-		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
+	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ_EN(0), LRADC_CTRL1);
 
 	mutex_unlock(&lradc->lock);
 
@@ -327,10 +374,9 @@ static int mxs_lradc_ts_touched(struct mxs_lradc *lradc)
 	uint32_t reg;
 
 	/* Enable touch detection. */
-	writel(LRADC_CTRL0_MX28_PLATE_MASK,
-		lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
-	writel(LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE,
-		lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_SET);
+	mxs_lradc_reg_clear(lradc, mxs_lradc_plate_mask(lradc), LRADC_CTRL0);
+	mxs_lradc_reg_set(lradc, mxs_lradc_touch_detect_bit(lradc),
+								LRADC_CTRL0);
 
 	msleep(LRADC_TS_SAMPLE_DELAY_MS);
 
@@ -375,32 +421,33 @@ static int32_t mxs_lradc_ts_sample(struct mxs_lradc *lradc,
 	 */
 	switch (plate) {
 	case LRADC_SAMPLE_X:
-		ctrl0 = LRADC_CTRL0_MX28_XPPSW | LRADC_CTRL0_MX28_XNNSW;
+		ctrl0 = mxs_lradc_drive_x_plate(lradc);
 		chan = 3;
 		break;
 	case LRADC_SAMPLE_Y:
-		ctrl0 = LRADC_CTRL0_MX28_YPPSW | LRADC_CTRL0_MX28_YNNSW;
+		ctrl0 = mxs_lradc_drive_y_plate(lradc);
 		chan = 4;
 		break;
 	case LRADC_SAMPLE_PRESSURE:
-		ctrl0 = LRADC_CTRL0_MX28_YPPSW | LRADC_CTRL0_MX28_XNNSW;
+		ctrl0 = mxs_lradc_drive_pressure(lradc);
 		chan = 5;
 		break;
 	}
 
 	if (change) {
-		writel(LRADC_CTRL0_MX28_PLATE_MASK,
-			lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
-		writel(ctrl0, lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_SET);
-
-		writel(LRADC_CTRL4_LRADCSELECT_MASK(slot),
-			lradc->base + LRADC_CTRL4 + STMP_OFFSET_REG_CLR);
-		writel(chan << LRADC_CTRL4_LRADCSELECT_OFFSET(slot),
-			lradc->base + LRADC_CTRL4 + STMP_OFFSET_REG_SET);
+		mxs_lradc_reg_clear(lradc, mxs_lradc_plate_mask(lradc),
+						LRADC_CTRL0);
+		mxs_lradc_reg_set(lradc, ctrl0, LRADC_CTRL0);
+
+		mxs_lradc_reg_clear(lradc, LRADC_CTRL4_LRADCSELECT_MASK(slot),
+						LRADC_CTRL4);
+		mxs_lradc_reg_set(lradc,
+				chan << LRADC_CTRL4_LRADCSELECT_OFFSET(slot),
+				LRADC_CTRL4);
 	}
 
-	writel(0xffffffff, lradc->base + LRADC_CH(slot) + STMP_OFFSET_REG_CLR);
-	writel(1 << slot, lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_SET);
+	mxs_lradc_reg_clear(lradc, 0xffffffff, LRADC_CH(slot));
+	mxs_lradc_reg_set(lradc, 1 << slot, LRADC_CTRL0);
 
 	delay = jiffies + msecs_to_jiffies(LRADC_TS_SAMPLE_DELAY_MS);
 	do {
@@ -410,8 +457,7 @@ static int32_t mxs_lradc_ts_sample(struct mxs_lradc *lradc,
 			break;
 	} while (time_before(jiff, delay));
 
-	writel(LRADC_CTRL1_LRADC_IRQ(slot),
-		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
+	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ(slot), LRADC_CTRL1);
 
 	if (time_after_eq(jiff, delay))
 		return -ETIMEDOUT;
@@ -450,8 +496,8 @@ static void mxs_lradc_ts_work(struct work_struct *ts_work)
 
 	while (mxs_lradc_ts_touched(lradc)) {
 		/* Disable touch detector so we can sample the touchscreen. */
-		writel(LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE,
-			lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
+		mxs_lradc_reg_clear(lradc, mxs_lradc_touch_detect_bit(lradc),
+						LRADC_CTRL0);
 
 		if (likely(valid)) {
 			input_report_abs(lradc->ts_input, ABS_X, val_x);
@@ -485,10 +531,8 @@ static void mxs_lradc_ts_work(struct work_struct *ts_work)
 		return;
 
 	/* Restart the touchscreen interrupts. */
-	writel(LRADC_CTRL1_TOUCH_DETECT_IRQ,
-		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
-	writel(LRADC_CTRL1_TOUCH_DETECT_IRQ_EN,
-		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_SET);
+	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ, LRADC_CTRL1);
+	mxs_lradc_reg_set(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ_EN, LRADC_CTRL1);
 }
 
 static int mxs_lradc_ts_open(struct input_dev *dev)
@@ -499,12 +543,11 @@ static int mxs_lradc_ts_open(struct input_dev *dev)
 	lradc->stop_touchscreen = false;
 
 	/* Enable the touch-detect circuitry. */
-	writel(LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE,
-		lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_SET);
+	mxs_lradc_reg_set(lradc, mxs_lradc_touch_detect_bit(lradc),
+						LRADC_CTRL0);
 
 	/* Enable the touch-detect IRQ. */
-	writel(LRADC_CTRL1_TOUCH_DETECT_IRQ_EN,
-		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_SET);
+	mxs_lradc_reg_set(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ_EN, LRADC_CTRL1);
 
 	return 0;
 }
@@ -521,12 +564,11 @@ static void mxs_lradc_ts_close(struct input_dev *dev)
 	cancel_work_sync(&lradc->ts_work);
 
 	/* Disable touchscreen touch-detect IRQ. */
-	writel(LRADC_CTRL1_TOUCH_DETECT_IRQ_EN,
-		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
+	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ_EN,
+						LRADC_CTRL1);
 
 	/* Power-down touchscreen touch-detect circuitry. */
-	writel(LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE,
-		lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
+	mxs_lradc_reg_clear(lradc, mxs_lradc_touch_detect_bit(lradc), LRADC_CTRL0);
 }
 
 static int mxs_lradc_ts_register(struct mxs_lradc *lradc)
@@ -589,7 +631,7 @@ static irqreturn_t mxs_lradc_handle_irq(int irq, void *data)
 		LRADC_CTRL1_TOUCH_DETECT_IRQ_EN |
 		LRADC_CTRL1_TOUCH_DETECT_IRQ;
 
-	if (!(reg & LRADC_CTRL1_MX28_LRADC_IRQ_MASK))
+	if (!(reg & mxs_lradc_irq_mask(lradc)))
 		return IRQ_NONE;
 
 	/*
@@ -598,8 +640,7 @@ static irqreturn_t mxs_lradc_handle_irq(int irq, void *data)
 	 * it ASAP
 	 */
 	if (reg & LRADC_CTRL1_TOUCH_DETECT_IRQ) {
-		writel(ts_irq_mask,
-			lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
+		mxs_lradc_reg_clear(lradc, ts_irq_mask, LRADC_CTRL1);
 		if (!lradc->stop_touchscreen)
 			schedule_work(&lradc->ts_work);
 	}
@@ -609,8 +650,7 @@ static irqreturn_t mxs_lradc_handle_irq(int irq, void *data)
 	else if (reg & LRADC_CTRL1_LRADC_IRQ(0))
 		complete(&lradc->completion);
 
-	writel(reg & LRADC_CTRL1_MX28_LRADC_IRQ_MASK,
-		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
+	mxs_lradc_reg_clear(lradc, reg & mxs_lradc_irq_mask(lradc), LRADC_CTRL1);
 
 	return IRQ_HANDLED;
 }
@@ -629,7 +669,7 @@ static irqreturn_t mxs_lradc_trigger_handler(int irq, void *p)
 
 	for_each_set_bit(i, iio->active_scan_mask, LRADC_MAX_TOTAL_CHANS) {
 		lradc->buffer[j] = readl(lradc->base + LRADC_CH(j));
-		writel(chan_value, lradc->base + LRADC_CH(j));
+		mxs_lradc_reg_wrt(lradc, chan_value, LRADC_CH(j));
 		lradc->buffer[j] &= LRADC_CH_VALUE_MASK;
 		lradc->buffer[j] /= LRADC_DELAY_TIMER_LOOP;
 		j++;
@@ -648,7 +688,7 @@ static int mxs_lradc_configure_trigger(struct iio_trigger *trig, bool state)
 	struct mxs_lradc *lradc = iio_priv(iio);
 	const uint32_t st = state ? STMP_OFFSET_REG_SET : STMP_OFFSET_REG_CLR;
 
-	writel(LRADC_DELAY_KICK, lradc->base + LRADC_DELAY(0) + st);
+	mxs_lradc_reg_wrt(lradc, LRADC_DELAY_KICK, LRADC_DELAY(0) + st);
 
 	return 0;
 }
@@ -724,29 +764,26 @@ static int mxs_lradc_buffer_preenable(struct iio_dev *iio)
 	if (ret < 0)
 		goto err_buf;
 
-	writel(LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
-		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
-	writel(0xff, lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
+	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
+							LRADC_CTRL1);
+	mxs_lradc_reg_clear(lradc, 0xff, LRADC_CTRL0);
 
 	for_each_set_bit(chan, iio->active_scan_mask, LRADC_MAX_TOTAL_CHANS) {
 		ctrl4_set |= chan << LRADC_CTRL4_LRADCSELECT_OFFSET(ofs);
 		ctrl4_clr |= LRADC_CTRL4_LRADCSELECT_MASK(ofs);
 		ctrl1_irq |= LRADC_CTRL1_LRADC_IRQ_EN(ofs);
-		writel(chan_value, lradc->base + LRADC_CH(ofs));
+		mxs_lradc_reg_wrt(lradc, chan_value, LRADC_CH(ofs));
 		bitmap_set(&enable, ofs, 1);
 		ofs++;
 	}
 
-	writel(LRADC_DELAY_TRIGGER_LRADCS_MASK | LRADC_DELAY_KICK,
-		lradc->base + LRADC_DELAY(0) + STMP_OFFSET_REG_CLR);
-
-	writel(ctrl4_clr, lradc->base + LRADC_CTRL4 + STMP_OFFSET_REG_CLR);
-	writel(ctrl4_set, lradc->base + LRADC_CTRL4 + STMP_OFFSET_REG_SET);
-
-	writel(ctrl1_irq, lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_SET);
-
-	writel(enable << LRADC_DELAY_TRIGGER_LRADCS_OFFSET,
-		lradc->base + LRADC_DELAY(0) + STMP_OFFSET_REG_SET);
+	mxs_lradc_reg_clear(lradc, LRADC_DELAY_TRIGGER_LRADCS_MASK |
+					LRADC_DELAY_KICK, LRADC_DELAY(0));
+	mxs_lradc_reg_clear(lradc, ctrl4_clr, LRADC_CTRL4);
+	mxs_lradc_reg_set(lradc, ctrl4_set, LRADC_CTRL4);
+	mxs_lradc_reg_set(lradc, ctrl1_irq, LRADC_CTRL1);
+	mxs_lradc_reg_set(lradc, enable << LRADC_DELAY_TRIGGER_LRADCS_OFFSET,
+					LRADC_DELAY(0));
 
 	return 0;
 
@@ -761,12 +798,12 @@ static int mxs_lradc_buffer_postdisable(struct iio_dev *iio)
 {
 	struct mxs_lradc *lradc = iio_priv(iio);
 
-	writel(LRADC_DELAY_TRIGGER_LRADCS_MASK | LRADC_DELAY_KICK,
-		lradc->base + LRADC_DELAY(0) + STMP_OFFSET_REG_CLR);
+	mxs_lradc_reg_clear(lradc, LRADC_DELAY_TRIGGER_LRADCS_MASK |
+					LRADC_DELAY_KICK, LRADC_DELAY(0));
 
-	writel(0xff, lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
-	writel(LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
-		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
+	mxs_lradc_reg_clear(lradc, 0xff, LRADC_CTRL0);
+	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
+					LRADC_CTRL1);
 
 	kfree(lradc->buffer);
 	mutex_unlock(&lradc->lock);
@@ -861,24 +898,24 @@ static int mxs_lradc_hw_init(struct mxs_lradc *lradc)
 		return ret;
 
 	/* Configure DELAY CHANNEL 0 for generic ADC sampling. */
-	writel(adc_cfg, lradc->base + LRADC_DELAY(0));
+	mxs_lradc_reg_wrt(lradc, adc_cfg, LRADC_DELAY(0));
 
 	/* Disable remaining DELAY CHANNELs */
-	writel(0, lradc->base + LRADC_DELAY(1));
-	writel(0, lradc->base + LRADC_DELAY(2));
-	writel(0, lradc->base + LRADC_DELAY(3));
+	mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(1));
+	mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(2));
+	mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(3));
 
 	/* Configure the touchscreen type */
-	writel(LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE,
-		lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_CLR);
+	mxs_lradc_reg_clear(lradc, LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE,
+							LRADC_CTRL0);
 
-	if (lradc->use_touchscreen == MXS_LRADC_TOUCHSCREEN_5WIRE) {
-		writel(LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE,
-			lradc->base + LRADC_CTRL0 + STMP_OFFSET_REG_SET);
+	if (lradc->use_touchscreen == MXS_LRADC_TOUCHSCREEN_5WIRE)
+		mxs_lradc_reg_set(lradc, LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE,
+				LRADC_CTRL0);
 	}
 
 	/* Start internal temperature sensing. */
-	writel(0, lradc->base + LRADC_CTRL2);
+	mxs_lradc_reg_wrt(lradc, 0, LRADC_CTRL2);
 
 	return 0;
 }
@@ -887,11 +924,10 @@ static void mxs_lradc_hw_stop(struct mxs_lradc *lradc)
 {
 	int i;
 
-	writel(LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
-		lradc->base + LRADC_CTRL1 + STMP_OFFSET_REG_CLR);
+	mxs_lradc_reg_clear(lradc, mxs_lradc_irq_en_mask(lradc), LRADC_CTRL1);
 
 	for (i = 0; i < LRADC_MAX_DELAY_CHANS; i++)
-		writel(0, lradc->base + LRADC_DELAY(i));
+		mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(i));
 }
 
 static const struct of_device_id mxs_lradc_dt_ids[] = {
-- 
cgit 


From 8c06f71444abde423710550de3435949240110ba Mon Sep 17 00:00:00 2001
From: Juergen Beisert <jbe@pengutronix.de>
Date: Mon, 23 Sep 2013 15:36:00 +0100
Subject: Staging/iio/adc/touchscreen/MXS: add i.MX23 support to the LRADC
 touchscreen driver
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Distinguish i.MX23 and i.MX28 at runtime and do the same for both SoC at least
for the 4 wire touchscreen.

Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Tested-by: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Teseted-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

CC: linux-arm-kernel@lists.infradead.org
CC: linux-input@vger.kernel.org
CC: devel@driverdev.osuosl.org
CC: Marek Vasut <marex@denx.de>
CC: Fabio Estevam <fabio.estevam@freescale.com>
---
 drivers/staging/iio/adc/mxs-lradc.c | 66 ++++++++++++++++++++++++++++++-------
 1 file changed, 55 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index 866b8f11d9fe..6d0cdfa0edc1 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -191,20 +191,33 @@ struct mxs_lradc {
 # define LRADC_CTRL0_MX28_XNPSW	/* XM */	(1 << 17)
 # define LRADC_CTRL0_MX28_XPPSW	/* XP */	(1 << 16)
 
+# define LRADC_CTRL0_MX23_TOUCH_DETECT_ENABLE	(1 << 20)
+# define LRADC_CTRL0_MX23_YM			(1 << 19)
+# define LRADC_CTRL0_MX23_XM			(1 << 18)
+# define LRADC_CTRL0_MX23_YP			(1 << 17)
+# define LRADC_CTRL0_MX23_XP			(1 << 16)
+
 # define LRADC_CTRL0_MX28_PLATE_MASK \
 		(LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE | \
 		LRADC_CTRL0_MX28_YNNSW | LRADC_CTRL0_MX28_YPNSW | \
 		LRADC_CTRL0_MX28_YPPSW | LRADC_CTRL0_MX28_XNNSW | \
 		LRADC_CTRL0_MX28_XNPSW | LRADC_CTRL0_MX28_XPPSW)
 
+# define LRADC_CTRL0_MX23_PLATE_MASK \
+		(LRADC_CTRL0_MX23_TOUCH_DETECT_ENABLE | \
+		LRADC_CTRL0_MX23_YM | LRADC_CTRL0_MX23_XM | \
+		LRADC_CTRL0_MX23_YP | LRADC_CTRL0_MX23_XP)
+
 #define	LRADC_CTRL1				0x10
 #define	LRADC_CTRL1_TOUCH_DETECT_IRQ_EN		(1 << 24)
 #define	LRADC_CTRL1_LRADC_IRQ_EN(n)		(1 << ((n) + 16))
 #define	LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK	(0x1fff << 16)
+#define	LRADC_CTRL1_MX23_LRADC_IRQ_EN_MASK	(0x01ff << 16)
 #define	LRADC_CTRL1_LRADC_IRQ_EN_OFFSET		16
 #define	LRADC_CTRL1_TOUCH_DETECT_IRQ		(1 << 8)
 #define	LRADC_CTRL1_LRADC_IRQ(n)		(1 << (n))
 #define	LRADC_CTRL1_MX28_LRADC_IRQ_MASK		0x1fff
+#define	LRADC_CTRL1_MX23_LRADC_IRQ_MASK		0x01ff
 #define	LRADC_CTRL1_LRADC_IRQ_OFFSET		0
 
 #define	LRADC_CTRL2				0x20
@@ -255,37 +268,58 @@ static void mxs_lradc_reg_wrt(struct mxs_lradc *lradc, u32 val, u32 reg)
 
 static u32 mxs_lradc_plate_mask(struct mxs_lradc *lradc)
 {
-	return LRADC_CTRL0_MX28_PLATE_MASK;
+	if (lradc->soc == IMX23_LRADC)
+		return LRADC_CTRL0_MX23_PLATE_MASK;
+	else
+		return LRADC_CTRL0_MX28_PLATE_MASK;
 }
 
 static u32 mxs_lradc_irq_en_mask(struct mxs_lradc *lradc)
 {
-	return LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK;
+	if (lradc->soc == IMX23_LRADC)
+		return LRADC_CTRL1_MX23_LRADC_IRQ_EN_MASK;
+	else
+		return LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK;
 }
 
 static u32 mxs_lradc_irq_mask(struct mxs_lradc *lradc)
 {
-	return LRADC_CTRL1_MX28_LRADC_IRQ_MASK;
+	if (lradc->soc == IMX23_LRADC)
+		return LRADC_CTRL1_MX23_LRADC_IRQ_MASK;
+	else
+		return LRADC_CTRL1_MX28_LRADC_IRQ_MASK;
 }
 
 static u32 mxs_lradc_touch_detect_bit(struct mxs_lradc *lradc)
 {
-	return LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE;
+	if (lradc->soc == IMX23_LRADC)
+		return LRADC_CTRL0_MX23_TOUCH_DETECT_ENABLE;
+	else
+		return LRADC_CTRL0_MX28_TOUCH_DETECT_ENABLE;
 }
 
 static u32 mxs_lradc_drive_x_plate(struct mxs_lradc *lradc)
 {
-	return LRADC_CTRL0_MX28_XPPSW | LRADC_CTRL0_MX28_XNNSW;
+	if (lradc->soc == IMX23_LRADC)
+		return LRADC_CTRL0_MX23_XP | LRADC_CTRL0_MX23_XM;
+	else
+		return LRADC_CTRL0_MX28_XPPSW | LRADC_CTRL0_MX28_XNNSW;
 }
 
 static u32 mxs_lradc_drive_y_plate(struct mxs_lradc *lradc)
 {
-	return LRADC_CTRL0_MX28_YPPSW | LRADC_CTRL0_MX28_YNNSW;
+	if (lradc->soc == IMX23_LRADC)
+		return LRADC_CTRL0_MX23_YP | LRADC_CTRL0_MX23_YM;
+	else
+		return LRADC_CTRL0_MX28_YPPSW | LRADC_CTRL0_MX28_YNNSW;
 }
 
 static u32 mxs_lradc_drive_pressure(struct mxs_lradc *lradc)
 {
-	return LRADC_CTRL0_MX28_YPPSW | LRADC_CTRL0_MX28_XNNSW;
+	if (lradc->soc == IMX23_LRADC)
+		return LRADC_CTRL0_MX23_YP | LRADC_CTRL0_MX23_XM;
+	else
+		return LRADC_CTRL0_MX28_YPPSW | LRADC_CTRL0_MX28_XNNSW;
 }
 
 /*
@@ -322,7 +356,8 @@ static int mxs_lradc_read_raw(struct iio_dev *iio_dev,
 	 * Virtual channel 0 is always used here as the others are always not
 	 * used if doing raw sampling.
 	 */
-	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
+	if (lradc->soc == IMX28_LRADC)
+		mxs_lradc_reg_clear(lradc, LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
 			LRADC_CTRL1);
 	mxs_lradc_reg_clear(lradc, 0xff, LRADC_CTRL0);
 
@@ -764,7 +799,8 @@ static int mxs_lradc_buffer_preenable(struct iio_dev *iio)
 	if (ret < 0)
 		goto err_buf;
 
-	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
+	if (lradc->soc == IMX28_LRADC)
+		mxs_lradc_reg_clear(lradc, LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
 							LRADC_CTRL1);
 	mxs_lradc_reg_clear(lradc, 0xff, LRADC_CTRL0);
 
@@ -802,7 +838,8 @@ static int mxs_lradc_buffer_postdisable(struct iio_dev *iio)
 					LRADC_DELAY_KICK, LRADC_DELAY(0));
 
 	mxs_lradc_reg_clear(lradc, 0xff, LRADC_CTRL0);
-	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
+	if (lradc->soc == IMX28_LRADC)
+		mxs_lradc_reg_clear(lradc, LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
 					LRADC_CTRL1);
 
 	kfree(lradc->buffer);
@@ -906,7 +943,8 @@ static int mxs_lradc_hw_init(struct mxs_lradc *lradc)
 	mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(3));
 
 	/* Configure the touchscreen type */
-	mxs_lradc_reg_clear(lradc, LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE,
+	if (lradc->soc == IMX28_LRADC) {
+		mxs_lradc_reg_clear(lradc, LRADC_CTRL0_MX28_TOUCH_SCREEN_TYPE,
 							LRADC_CTRL0);
 
 	if (lradc->use_touchscreen == MXS_LRADC_TOUCHSCREEN_5WIRE)
@@ -995,6 +1033,12 @@ static int mxs_lradc_probe(struct platform_device *pdev)
 		dev_warn(dev, "Unsupported number of touchscreen wires (%d)\n",
 				ts_wires);
 
+	if ((lradc->soc == IMX23_LRADC) && (ts_wires == 5)) {
+		dev_warn(dev, "No support for 5 wire touches on i.MX23\n");
+		dev_warn(dev, "Falling back to 4 wire\n");
+		ts_wires = 4;
+	}
+
 	/* Grab all IRQ sources */
 	for (i = 0; i < of_cfg->irq_count; i++) {
 		lradc->irq[i] = platform_get_irq(pdev, i);
-- 
cgit 


From dee05308f6029caed91e1a015cafb1545958ba27 Mon Sep 17 00:00:00 2001
From: Juergen Beisert <jbe@pengutronix.de>
Date: Mon, 23 Sep 2013 15:36:00 +0100
Subject: Staging/iio/adc/touchscreen/MXS: add interrupt driven touch detection
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

For battery driven systems it is a very bad idea to collect the touchscreen
data within a kernel busy loop.

This change uses the features of the hardware to delay and accumulate samples in
hardware to avoid a high interrupt and CPU load.

Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Tested-by: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

CC: linux-arm-kernel@lists.infradead.org
CC: linux-input@vger.kernel.org
CC: devel@driverdev.osuosl.org
CC: Marek Vasut <marex@denx.de>
CC: Fabio Estevam <fabio.estevam@freescale.com>
CC: Dmitry Torokhov <dmitry.torokhov@gmail.com>
CC: linux-input@vger.kernel.org
---
 drivers/staging/iio/adc/mxs-lradc.c | 530 ++++++++++++++++++++++++++++++++----
 1 file changed, 476 insertions(+), 54 deletions(-)

diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index 6d0cdfa0edc1..9e4b6eabf1aa 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -130,6 +130,17 @@ enum mxs_lradc_ts {
 	MXS_LRADC_TOUCHSCREEN_5WIRE,
 };
 
+/*
+ * Touchscreen handling
+ */
+enum lradc_ts_plate {
+	LRADC_TOUCH = 0,
+	LRADC_SAMPLE_X,
+	LRADC_SAMPLE_Y,
+	LRADC_SAMPLE_PRESSURE,
+	LRADC_SAMPLE_VALID,
+};
+
 struct mxs_lradc {
 	struct device		*dev;
 	void __iomem		*base;
@@ -172,13 +183,25 @@ struct mxs_lradc {
 #define CHAN_MASK_TOUCHSCREEN_4WIRE	(0xf << 2)
 #define CHAN_MASK_TOUCHSCREEN_5WIRE	(0x1f << 2)
 	enum mxs_lradc_ts	use_touchscreen;
-	bool			stop_touchscreen;
 	bool			use_touchbutton;
 
 	struct input_dev	*ts_input;
 	struct work_struct	ts_work;
 
 	enum mxs_lradc_id	soc;
+	enum lradc_ts_plate	cur_plate; /* statemachine */
+	bool			ts_valid;
+	unsigned		ts_x_pos;
+	unsigned		ts_y_pos;
+	unsigned		ts_pressure;
+
+	/* handle touchscreen's physical behaviour */
+	/* samples per coordinate */
+	unsigned		over_sample_cnt;
+	/* time clocks between samples */
+	unsigned		over_sample_delay;
+	/* time in clocks to wait after the plates where switched */
+	unsigned		settling_delay;
 };
 
 #define	LRADC_CTRL0				0x00
@@ -230,19 +253,33 @@ struct mxs_lradc {
 #define	LRADC_CH_ACCUMULATE			(1 << 29)
 #define	LRADC_CH_NUM_SAMPLES_MASK		(0x1f << 24)
 #define	LRADC_CH_NUM_SAMPLES_OFFSET		24
+#define	LRADC_CH_NUM_SAMPLES(x) \
+				((x) << LRADC_CH_NUM_SAMPLES_OFFSET)
 #define	LRADC_CH_VALUE_MASK			0x3ffff
 #define	LRADC_CH_VALUE_OFFSET			0
 
 #define	LRADC_DELAY(n)				(0xd0 + (0x10 * (n)))
 #define	LRADC_DELAY_TRIGGER_LRADCS_MASK		(0xff << 24)
 #define	LRADC_DELAY_TRIGGER_LRADCS_OFFSET	24
+#define	LRADC_DELAY_TRIGGER(x) \
+				(((x) << LRADC_DELAY_TRIGGER_LRADCS_OFFSET) & \
+				LRADC_DELAY_TRIGGER_LRADCS_MASK)
 #define	LRADC_DELAY_KICK			(1 << 20)
 #define	LRADC_DELAY_TRIGGER_DELAYS_MASK		(0xf << 16)
 #define	LRADC_DELAY_TRIGGER_DELAYS_OFFSET	16
+#define	LRADC_DELAY_TRIGGER_DELAYS(x) \
+				(((x) << LRADC_DELAY_TRIGGER_DELAYS_OFFSET) & \
+				LRADC_DELAY_TRIGGER_DELAYS_MASK)
 #define	LRADC_DELAY_LOOP_COUNT_MASK		(0x1f << 11)
 #define	LRADC_DELAY_LOOP_COUNT_OFFSET		11
+#define	LRADC_DELAY_LOOP(x) \
+				(((x) << LRADC_DELAY_LOOP_COUNT_OFFSET) & \
+				LRADC_DELAY_LOOP_COUNT_MASK)
 #define	LRADC_DELAY_DELAY_MASK			0x7ff
 #define	LRADC_DELAY_DELAY_OFFSET		0
+#define	LRADC_DELAY_DELAY(x) \
+				(((x) << LRADC_DELAY_DELAY_OFFSET) & \
+				LRADC_DELAY_DELAY_MASK)
 
 #define	LRADC_CTRL4				0x140
 #define	LRADC_CTRL4_LRADCSELECT_MASK(n)		(0xf << ((n) * 4))
@@ -322,6 +359,404 @@ static u32 mxs_lradc_drive_pressure(struct mxs_lradc *lradc)
 		return LRADC_CTRL0_MX28_YPPSW | LRADC_CTRL0_MX28_XNNSW;
 }
 
+static bool mxs_lradc_check_touch_event(struct mxs_lradc *lradc)
+{
+	return !!(readl(lradc->base + LRADC_STATUS) &
+					LRADC_STATUS_TOUCH_DETECT_RAW);
+}
+
+static void mxs_lradc_setup_ts_channel(struct mxs_lradc *lradc, unsigned ch)
+{
+	/*
+	 * prepare for oversampling conversion
+	 *
+	 * from the datasheet:
+	 * "The ACCUMULATE bit in the appropriate channel register
+	 * HW_LRADC_CHn must be set to 1 if NUM_SAMPLES is greater then 0;
+	 * otherwise, the IRQs will not fire."
+	 */
+	mxs_lradc_reg_wrt(lradc, LRADC_CH_ACCUMULATE |
+			LRADC_CH_NUM_SAMPLES(lradc->over_sample_cnt - 1),
+			LRADC_CH(ch));
+
+	/* from the datasheet:
+	 * "Software must clear this register in preparation for a
+	 * multi-cycle accumulation.
+	 */
+	mxs_lradc_reg_clear(lradc, LRADC_CH_VALUE_MASK, LRADC_CH(ch));
+
+	/* prepare the delay/loop unit according to the oversampling count */
+	mxs_lradc_reg_wrt(lradc, LRADC_DELAY_TRIGGER(1 << ch) |
+		LRADC_DELAY_TRIGGER_DELAYS(0) |
+		LRADC_DELAY_LOOP(lradc->over_sample_cnt - 1) |
+		LRADC_DELAY_DELAY(lradc->over_sample_delay - 1),
+			LRADC_DELAY(3));
+
+	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ(2) |
+			LRADC_CTRL1_LRADC_IRQ(3) | LRADC_CTRL1_LRADC_IRQ(4) |
+			LRADC_CTRL1_LRADC_IRQ(5), LRADC_CTRL1);
+
+	/* wake us again, when the complete conversion is done */
+	mxs_lradc_reg_set(lradc, LRADC_CTRL1_LRADC_IRQ_EN(ch), LRADC_CTRL1);
+	/*
+	 * after changing the touchscreen plates setting
+	 * the signals need some initial time to settle. Start the
+	 * SoC's delay unit and start the conversion later
+	 * and automatically.
+	 */
+	mxs_lradc_reg_wrt(lradc, LRADC_DELAY_TRIGGER(0) | /* don't trigger ADC */
+		LRADC_DELAY_TRIGGER_DELAYS(1 << 3) | /* trigger DELAY unit#3 */
+		LRADC_DELAY_KICK |
+		LRADC_DELAY_DELAY(lradc->settling_delay),
+			LRADC_DELAY(2));
+}
+
+/*
+ * Pressure detection is special:
+ * We want to do both required measurements for the pressure detection in
+ * one turn. Use the hardware features to chain both conversions and let the
+ * hardware report one interrupt if both conversions are done
+ */
+static void mxs_lradc_setup_ts_pressure(struct mxs_lradc *lradc, unsigned ch1,
+							unsigned ch2)
+{
+	u32 reg;
+
+	/*
+	 * prepare for oversampling conversion
+	 *
+	 * from the datasheet:
+	 * "The ACCUMULATE bit in the appropriate channel register
+	 * HW_LRADC_CHn must be set to 1 if NUM_SAMPLES is greater then 0;
+	 * otherwise, the IRQs will not fire."
+	 */
+	reg = LRADC_CH_ACCUMULATE |
+		LRADC_CH_NUM_SAMPLES(lradc->over_sample_cnt - 1);
+	mxs_lradc_reg_wrt(lradc, reg, LRADC_CH(ch1));
+	mxs_lradc_reg_wrt(lradc, reg, LRADC_CH(ch2));
+
+	/* from the datasheet:
+	 * "Software must clear this register in preparation for a
+	 * multi-cycle accumulation.
+	 */
+	mxs_lradc_reg_clear(lradc, LRADC_CH_VALUE_MASK, LRADC_CH(ch1));
+	mxs_lradc_reg_clear(lradc, LRADC_CH_VALUE_MASK, LRADC_CH(ch2));
+
+	/* prepare the delay/loop unit according to the oversampling count */
+	mxs_lradc_reg_wrt(lradc, LRADC_DELAY_TRIGGER(1 << ch1) |
+		LRADC_DELAY_TRIGGER(1 << ch2) | /* start both channels */
+		LRADC_DELAY_TRIGGER_DELAYS(0) |
+		LRADC_DELAY_LOOP(lradc->over_sample_cnt - 1) |
+		LRADC_DELAY_DELAY(lradc->over_sample_delay - 1),
+					LRADC_DELAY(3));
+
+	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ(2) |
+			LRADC_CTRL1_LRADC_IRQ(3) | LRADC_CTRL1_LRADC_IRQ(4) |
+			LRADC_CTRL1_LRADC_IRQ(5), LRADC_CTRL1);
+
+	/* wake us again, when the conversions are done */
+	mxs_lradc_reg_set(lradc, LRADC_CTRL1_LRADC_IRQ_EN(ch2), LRADC_CTRL1);
+	/*
+	 * after changing the touchscreen plates setting
+	 * the signals need some initial time to settle. Start the
+	 * SoC's delay unit and start the conversion later
+	 * and automatically.
+	 */
+	mxs_lradc_reg_wrt(lradc, LRADC_DELAY_TRIGGER(0) | /* don't trigger ADC */
+		LRADC_DELAY_TRIGGER_DELAYS(1 << 3) | /* trigger DELAY unit#3 */
+		LRADC_DELAY_KICK |
+		LRADC_DELAY_DELAY(lradc->settling_delay), LRADC_DELAY(2));
+}
+
+static unsigned mxs_lradc_read_raw_channel(struct mxs_lradc *lradc,
+							unsigned channel)
+{
+	u32 reg;
+	unsigned num_samples, val;
+
+	reg = readl(lradc->base + LRADC_CH(channel));
+	if (reg & LRADC_CH_ACCUMULATE)
+		num_samples = lradc->over_sample_cnt;
+	else
+		num_samples = 1;
+
+	val = (reg & LRADC_CH_VALUE_MASK) >> LRADC_CH_VALUE_OFFSET;
+	return val / num_samples;
+}
+
+static unsigned mxs_lradc_read_ts_pressure(struct mxs_lradc *lradc,
+						unsigned ch1, unsigned ch2)
+{
+	u32 reg, mask;
+	unsigned pressure, m1, m2;
+
+	mask = LRADC_CTRL1_LRADC_IRQ(ch1) | LRADC_CTRL1_LRADC_IRQ(ch2);
+	reg = readl(lradc->base + LRADC_CTRL1) & mask;
+
+	while (reg != mask) {
+		reg = readl(lradc->base + LRADC_CTRL1) & mask;
+		dev_dbg(lradc->dev, "One channel is still busy: %X\n", reg);
+	}
+
+	m1 = mxs_lradc_read_raw_channel(lradc, ch1);
+	m2 = mxs_lradc_read_raw_channel(lradc, ch2);
+
+	if (m2 == 0) {
+		dev_warn(lradc->dev, "Cannot calculate pressure\n");
+		return 1 << (LRADC_RESOLUTION - 1);
+	}
+
+	/* simply scale the value from 0 ... max ADC resolution */
+	pressure = m1;
+	pressure *= (1 << LRADC_RESOLUTION);
+	pressure /= m2;
+
+	dev_dbg(lradc->dev, "Pressure = %u\n", pressure);
+	return pressure;
+}
+
+#define TS_CH_XP 2
+#define TS_CH_YP 3
+#define TS_CH_XM 4
+#define TS_CH_YM 5
+
+static int mxs_lradc_read_ts_channel(struct mxs_lradc *lradc)
+{
+	u32 reg;
+	int val;
+
+	reg = readl(lradc->base + LRADC_CTRL1);
+
+	/* only channels 3 to 5 are of interest here */
+	if (reg & LRADC_CTRL1_LRADC_IRQ(TS_CH_YP)) {
+		mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ_EN(TS_CH_YP) |
+			LRADC_CTRL1_LRADC_IRQ(TS_CH_YP), LRADC_CTRL1);
+		val = mxs_lradc_read_raw_channel(lradc, TS_CH_YP);
+	} else if (reg & LRADC_CTRL1_LRADC_IRQ(TS_CH_XM)) {
+		mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ_EN(TS_CH_XM) |
+			LRADC_CTRL1_LRADC_IRQ(TS_CH_XM), LRADC_CTRL1);
+		val = mxs_lradc_read_raw_channel(lradc, TS_CH_XM);
+	} else if (reg & LRADC_CTRL1_LRADC_IRQ(TS_CH_YM)) {
+		mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ_EN(TS_CH_YM) |
+			LRADC_CTRL1_LRADC_IRQ(TS_CH_YM), LRADC_CTRL1);
+		val = mxs_lradc_read_raw_channel(lradc, TS_CH_YM);
+	} else {
+		return -EIO;
+	}
+
+	mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(2));
+	mxs_lradc_reg_wrt(lradc, 0, LRADC_DELAY(3));
+
+	return val;
+}
+
+/*
+ * YP(open)--+-------------+
+ *           |             |--+
+ *           |             |  |
+ *    YM(-)--+-------------+  |
+ *             +--------------+
+ *             |              |
+ *         XP(weak+)        XM(open)
+ *
+ * "weak+" means 200k Ohm VDDIO
+ * (-) means GND
+ */
+static void mxs_lradc_setup_touch_detection(struct mxs_lradc *lradc)
+{
+	/*
+	 * In order to detect a touch event the 'touch detect enable' bit
+	 * enables:
+	 *  - a weak pullup to the X+ connector
+	 *  - a strong ground at the Y- connector
+	 */
+	mxs_lradc_reg_clear(lradc, mxs_lradc_plate_mask(lradc), LRADC_CTRL0);
+	mxs_lradc_reg_set(lradc, mxs_lradc_touch_detect_bit(lradc),
+				LRADC_CTRL0);
+}
+
+/*
+ * YP(meas)--+-------------+
+ *           |             |--+
+ *           |             |  |
+ * YM(open)--+-------------+  |
+ *             +--------------+
+ *             |              |
+ *           XP(+)          XM(-)
+ *
+ * (+) means here 1.85 V
+ * (-) means here GND
+ */
+static void mxs_lradc_prepare_x_pos(struct mxs_lradc *lradc)
+{
+	mxs_lradc_reg_clear(lradc, mxs_lradc_plate_mask(lradc), LRADC_CTRL0);
+	mxs_lradc_reg_set(lradc, mxs_lradc_drive_x_plate(lradc), LRADC_CTRL0);
+
+	lradc->cur_plate = LRADC_SAMPLE_X;
+	mxs_lradc_setup_ts_channel(lradc, TS_CH_YP);
+}
+
+/*
+ *   YP(+)--+-------------+
+ *          |             |--+
+ *          |             |  |
+ *   YM(-)--+-------------+  |
+ *            +--------------+
+ *            |              |
+ *         XP(open)        XM(meas)
+ *
+ * (+) means here 1.85 V
+ * (-) means here GND
+ */
+static void mxs_lradc_prepare_y_pos(struct mxs_lradc *lradc)
+{
+	mxs_lradc_reg_clear(lradc, mxs_lradc_plate_mask(lradc), LRADC_CTRL0);
+	mxs_lradc_reg_set(lradc, mxs_lradc_drive_y_plate(lradc), LRADC_CTRL0);
+
+	lradc->cur_plate = LRADC_SAMPLE_Y;
+	mxs_lradc_setup_ts_channel(lradc, TS_CH_XM);
+}
+
+/*
+ *    YP(+)--+-------------+
+ *           |             |--+
+ *           |             |  |
+ * YM(meas)--+-------------+  |
+ *             +--------------+
+ *             |              |
+ *          XP(meas)        XM(-)
+ *
+ * (+) means here 1.85 V
+ * (-) means here GND
+ */
+static void mxs_lradc_prepare_pressure(struct mxs_lradc *lradc)
+{
+	mxs_lradc_reg_clear(lradc, mxs_lradc_plate_mask(lradc), LRADC_CTRL0);
+	mxs_lradc_reg_set(lradc, mxs_lradc_drive_pressure(lradc), LRADC_CTRL0);
+
+	lradc->cur_plate = LRADC_SAMPLE_PRESSURE;
+	mxs_lradc_setup_ts_pressure(lradc, TS_CH_XP, TS_CH_YM);
+}
+
+static void mxs_lradc_enable_touch_detection(struct mxs_lradc *lradc)
+{
+	mxs_lradc_setup_touch_detection(lradc);
+
+	lradc->cur_plate = LRADC_TOUCH;
+	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ |
+				LRADC_CTRL1_TOUCH_DETECT_IRQ_EN, LRADC_CTRL1);
+	mxs_lradc_reg_set(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ_EN, LRADC_CTRL1);
+}
+
+static void mxs_lradc_report_ts_event(struct mxs_lradc *lradc)
+{
+	input_report_abs(lradc->ts_input, ABS_X, lradc->ts_x_pos);
+	input_report_abs(lradc->ts_input, ABS_Y, lradc->ts_y_pos);
+	input_report_abs(lradc->ts_input, ABS_PRESSURE, lradc->ts_pressure);
+	input_report_key(lradc->ts_input, BTN_TOUCH, 1);
+	input_sync(lradc->ts_input);
+}
+
+static void mxs_lradc_complete_touch_event(struct mxs_lradc *lradc)
+{
+	mxs_lradc_setup_touch_detection(lradc);
+	lradc->cur_plate = LRADC_SAMPLE_VALID;
+	/*
+	 * start a dummy conversion to burn time to settle the signals
+	 * note: we are not interested in the conversion's value
+	 */
+	mxs_lradc_reg_wrt(lradc, 0, LRADC_CH(5));
+	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ(5), LRADC_CTRL1);
+	mxs_lradc_reg_set(lradc, LRADC_CTRL1_LRADC_IRQ_EN(5), LRADC_CTRL1);
+	mxs_lradc_reg_wrt(lradc, LRADC_DELAY_TRIGGER(1 << 5) |
+		LRADC_DELAY_KICK | LRADC_DELAY_DELAY(10), /* waste 5 ms */
+			LRADC_DELAY(2));
+}
+
+/*
+ * in order to avoid false measurements, report only samples where
+ * the surface is still touched after the position measurement
+ */
+static void mxs_lradc_finish_touch_event(struct mxs_lradc *lradc, bool valid)
+{
+	/* if it is still touched, report the sample */
+	if (valid && mxs_lradc_check_touch_event(lradc)) {
+		lradc->ts_valid = true;
+		mxs_lradc_report_ts_event(lradc);
+	}
+
+	/* if it is even still touched, continue with the next measurement */
+	if (mxs_lradc_check_touch_event(lradc)) {
+		mxs_lradc_prepare_y_pos(lradc);
+		return;
+	}
+
+	if (lradc->ts_valid) {
+		/* signal the release */
+		lradc->ts_valid = false;
+		input_report_key(lradc->ts_input, BTN_TOUCH, 0);
+		input_sync(lradc->ts_input);
+	}
+
+	/* if it is released, wait for the next touch via IRQ */
+	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ, LRADC_CTRL1);
+	mxs_lradc_reg_set(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ_EN, LRADC_CTRL1);
+}
+
+/* touchscreen's state machine */
+static void mxs_lradc_handle_touch(struct mxs_lradc *lradc)
+{
+	int val;
+
+	switch (lradc->cur_plate) {
+	case LRADC_TOUCH:
+		/*
+		 * start with the Y-pos, because it uses nearly the same plate
+		 * settings like the touch detection
+		 */
+		if (mxs_lradc_check_touch_event(lradc)) {
+			mxs_lradc_reg_clear(lradc,
+					LRADC_CTRL1_TOUCH_DETECT_IRQ_EN,
+					LRADC_CTRL1);
+			mxs_lradc_prepare_y_pos(lradc);
+		}
+		mxs_lradc_reg_clear(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ,
+					LRADC_CTRL1);
+		return;
+
+	case LRADC_SAMPLE_Y:
+		val = mxs_lradc_read_ts_channel(lradc);
+		if (val < 0) {
+			mxs_lradc_enable_touch_detection(lradc); /* re-start */
+			return;
+		}
+		lradc->ts_y_pos = val;
+		mxs_lradc_prepare_x_pos(lradc);
+		return;
+
+	case LRADC_SAMPLE_X:
+		val = mxs_lradc_read_ts_channel(lradc);
+		if (val < 0) {
+			mxs_lradc_enable_touch_detection(lradc); /* re-start */
+			return;
+		}
+		lradc->ts_x_pos = val;
+		mxs_lradc_prepare_pressure(lradc);
+		return;
+
+	case LRADC_SAMPLE_PRESSURE:
+		lradc->ts_pressure =
+			mxs_lradc_read_ts_pressure(lradc, TS_CH_XP, TS_CH_YM);
+		mxs_lradc_complete_touch_event(lradc);
+		return;
+
+	case LRADC_SAMPLE_VALID:
+		val = mxs_lradc_read_ts_channel(lradc); /* ignore the value */
+		mxs_lradc_finish_touch_event(lradc, 1);
+		break;
+	}
+}
+
 /*
  * Raw I/O operations
  */
@@ -395,15 +830,6 @@ static const struct iio_info mxs_lradc_iio_info = {
 	.read_raw		= mxs_lradc_read_raw,
 };
 
-/*
- * Touchscreen handling
- */
-enum lradc_ts_plate {
-	LRADC_SAMPLE_X,
-	LRADC_SAMPLE_Y,
-	LRADC_SAMPLE_PRESSURE,
-};
-
 static int mxs_lradc_ts_touched(struct mxs_lradc *lradc)
 {
 	uint32_t reg;
@@ -561,10 +987,6 @@ static void mxs_lradc_ts_work(struct work_struct *ts_work)
 	input_report_key(lradc->ts_input, BTN_TOUCH, 0);
 	input_sync(lradc->ts_input);
 
-	/* Do not restart the TS IRQ if the driver is shutting down. */
-	if (lradc->stop_touchscreen)
-		return;
-
 	/* Restart the touchscreen interrupts. */
 	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ, LRADC_CTRL1);
 	mxs_lradc_reg_set(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ_EN, LRADC_CTRL1);
@@ -574,36 +996,29 @@ static int mxs_lradc_ts_open(struct input_dev *dev)
 {
 	struct mxs_lradc *lradc = input_get_drvdata(dev);
 
-	/* The touchscreen is starting. */
-	lradc->stop_touchscreen = false;
-
 	/* Enable the touch-detect circuitry. */
-	mxs_lradc_reg_set(lradc, mxs_lradc_touch_detect_bit(lradc),
-						LRADC_CTRL0);
-
-	/* Enable the touch-detect IRQ. */
-	mxs_lradc_reg_set(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ_EN, LRADC_CTRL1);
+	mxs_lradc_enable_touch_detection(lradc);
 
 	return 0;
 }
 
-static void mxs_lradc_ts_close(struct input_dev *dev)
+static void mxs_lradc_disable_ts(struct mxs_lradc *lradc)
 {
-	struct mxs_lradc *lradc = input_get_drvdata(dev);
+	/* stop all interrupts from firing */
+	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ_EN |
+		LRADC_CTRL1_LRADC_IRQ_EN(2) | LRADC_CTRL1_LRADC_IRQ_EN(3) |
+		LRADC_CTRL1_LRADC_IRQ_EN(4) | LRADC_CTRL1_LRADC_IRQ_EN(5),
+		LRADC_CTRL1);
 
-	/* Indicate the touchscreen is stopping. */
-	lradc->stop_touchscreen = true;
-	mb();
-
-	/* Wait until touchscreen thread finishes any possible remnants. */
-	cancel_work_sync(&lradc->ts_work);
+	/* Power-down touchscreen touch-detect circuitry. */
+	mxs_lradc_reg_clear(lradc, mxs_lradc_plate_mask(lradc), LRADC_CTRL0);
+}
 
-	/* Disable touchscreen touch-detect IRQ. */
-	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ_EN,
-						LRADC_CTRL1);
+static void mxs_lradc_ts_close(struct input_dev *dev)
+{
+	struct mxs_lradc *lradc = input_get_drvdata(dev);
 
-	/* Power-down touchscreen touch-detect circuitry. */
-	mxs_lradc_reg_clear(lradc, mxs_lradc_touch_detect_bit(lradc), LRADC_CTRL0);
+	mxs_lradc_disable_ts(lradc);
 }
 
 static int mxs_lradc_ts_register(struct mxs_lradc *lradc)
@@ -649,8 +1064,7 @@ static void mxs_lradc_ts_unregister(struct mxs_lradc *lradc)
 	if (!lradc->use_touchscreen)
 		return;
 
-	cancel_work_sync(&lradc->ts_work);
-
+	mxs_lradc_disable_ts(lradc);
 	input_unregister_device(lradc->ts_input);
 }
 
@@ -663,22 +1077,17 @@ static irqreturn_t mxs_lradc_handle_irq(int irq, void *data)
 	struct mxs_lradc *lradc = iio_priv(iio);
 	unsigned long reg = readl(lradc->base + LRADC_CTRL1);
 	const uint32_t ts_irq_mask =
-		LRADC_CTRL1_TOUCH_DETECT_IRQ_EN |
-		LRADC_CTRL1_TOUCH_DETECT_IRQ;
+		LRADC_CTRL1_TOUCH_DETECT_IRQ |
+		LRADC_CTRL1_LRADC_IRQ(2) |
+		LRADC_CTRL1_LRADC_IRQ(3) |
+		LRADC_CTRL1_LRADC_IRQ(4) |
+		LRADC_CTRL1_LRADC_IRQ(5);
 
 	if (!(reg & mxs_lradc_irq_mask(lradc)))
 		return IRQ_NONE;
 
-	/*
-	 * Touchscreen IRQ handling code has priority and therefore
-	 * is placed here. In case touchscreen IRQ arrives, disable
-	 * it ASAP
-	 */
-	if (reg & LRADC_CTRL1_TOUCH_DETECT_IRQ) {
-		mxs_lradc_reg_clear(lradc, ts_irq_mask, LRADC_CTRL1);
-		if (!lradc->stop_touchscreen)
-			schedule_work(&lradc->ts_work);
-	}
+	if (lradc->use_touchscreen && (reg & ts_irq_mask))
+		mxs_lradc_handle_touch(lradc);
 
 	if (iio_buffer_enabled(iio))
 		iio_trigger_poll(iio->trig, iio_get_time_ns());
@@ -975,6 +1384,17 @@ static const struct of_device_id mxs_lradc_dt_ids[] = {
 };
 MODULE_DEVICE_TABLE(of, mxs_lradc_dt_ids);
 
+static int mxs_lradc_probe_touchscreen(struct mxs_lradc *lradc,
+						struct device_node *lradc_node)
+{
+	/* TODO retrieve from device tree */
+	lradc->over_sample_cnt = 4;
+	lradc->over_sample_delay = 2;
+	lradc->settling_delay = 10;
+
+	return 0;
+}
+
 static int mxs_lradc_probe(struct platform_device *pdev)
 {
 	const struct of_device_id *of_id =
@@ -987,7 +1407,7 @@ static int mxs_lradc_probe(struct platform_device *pdev)
 	struct iio_dev *iio;
 	struct resource *iores;
 	uint32_t ts_wires = 0;
-	int ret = 0;
+	int ret = 0, touch_ret;
 	int i;
 
 	/* Allocate the IIO device. */
@@ -1018,7 +1438,7 @@ static int mxs_lradc_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	INIT_WORK(&lradc->ts_work, mxs_lradc_ts_work);
+	touch_ret = mxs_lradc_probe_touchscreen(lradc, node);
 
 	/* Check if touchscreen is enabled in DT. */
 	ret = of_property_read_u32(node, "fsl,lradc-touchscreen-wires",
@@ -1081,9 +1501,11 @@ static int mxs_lradc_probe(struct platform_device *pdev)
 		goto err_dev;
 
 	/* Register the touchscreen input device. */
-	ret = mxs_lradc_ts_register(lradc);
-	if (ret)
-		goto err_ts_register;
+	if (touch_ret == 0) {
+		ret = mxs_lradc_ts_register(lradc);
+		if (ret)
+			goto err_ts_register;
+	}
 
 	/* Register IIO device. */
 	ret = iio_device_register(iio);
-- 
cgit 


From cd6c5586524e10512b910b3ff44465f0aaf5cd1b Mon Sep 17 00:00:00 2001
From: Juergen Beisert <jbe@pengutronix.de>
Date: Mon, 23 Sep 2013 15:36:00 +0100
Subject: Staging/iio/adc/touchscreen/MXS: remove old touchscreen detection
 implementation
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Tested-by: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>

CC: linux-arm-kernel@lists.infradead.org
CC: linux-input@vger.kernel.org
CC: devel@driverdev.osuosl.org
CC: Marek Vasut <marex@denx.de>
CC: Fabio Estevam <fabio.estevam@freescale.com>
---
 drivers/staging/iio/adc/mxs-lradc.c | 163 ------------------------------------
 1 file changed, 163 deletions(-)

diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index 9e4b6eabf1aa..18510d1ea5c8 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -186,7 +186,6 @@ struct mxs_lradc {
 	bool			use_touchbutton;
 
 	struct input_dev	*ts_input;
-	struct work_struct	ts_work;
 
 	enum mxs_lradc_id	soc;
 	enum lradc_ts_plate	cur_plate; /* statemachine */
@@ -830,168 +829,6 @@ static const struct iio_info mxs_lradc_iio_info = {
 	.read_raw		= mxs_lradc_read_raw,
 };
 
-static int mxs_lradc_ts_touched(struct mxs_lradc *lradc)
-{
-	uint32_t reg;
-
-	/* Enable touch detection. */
-	mxs_lradc_reg_clear(lradc, mxs_lradc_plate_mask(lradc), LRADC_CTRL0);
-	mxs_lradc_reg_set(lradc, mxs_lradc_touch_detect_bit(lradc),
-								LRADC_CTRL0);
-
-	msleep(LRADC_TS_SAMPLE_DELAY_MS);
-
-	reg = readl(lradc->base + LRADC_STATUS);
-
-	return reg & LRADC_STATUS_TOUCH_DETECT_RAW;
-}
-
-static int32_t mxs_lradc_ts_sample(struct mxs_lradc *lradc,
-				enum lradc_ts_plate plate, int change)
-{
-	unsigned long delay, jiff;
-	uint32_t reg, ctrl0 = 0, chan = 0;
-	/* The touchscreen always uses CTRL4 slot #7. */
-	const uint8_t slot = 7;
-	uint32_t val;
-
-	/*
-	 * There are three correct configurations of the controller sampling
-	 * the touchscreen, each of these configuration provides different
-	 * information from the touchscreen.
-	 *
-	 * The following table describes the sampling configurations:
-	 * +-------------+-------+-------+-------+
-	 * | Wire \ Axis |   X   |   Y   |   Z   |
-	 * +---------------------+-------+-------+
-	 * |   X+ (CH2)  |   HI  |   TS  |   TS  |
-	 * +-------------+-------+-------+-------+
-	 * |   X- (CH4)  |   LO  |   SH  |   HI  |
-	 * +-------------+-------+-------+-------+
-	 * |   Y+ (CH3)  |   SH  |   HI  |   HI  |
-	 * +-------------+-------+-------+-------+
-	 * |   Y- (CH5)  |   TS  |   LO  |   SH  |
-	 * +-------------+-------+-------+-------+
-	 *
-	 * HI ... strong '1'  ; LO ... strong '0'
-	 * SH ... sample here ; TS ... tri-state
-	 *
-	 * There are a few other ways of obtaining the Z coordinate
-	 * (aka. pressure), but the one in the table seems to be the
-	 * most reliable one.
-	 */
-	switch (plate) {
-	case LRADC_SAMPLE_X:
-		ctrl0 = mxs_lradc_drive_x_plate(lradc);
-		chan = 3;
-		break;
-	case LRADC_SAMPLE_Y:
-		ctrl0 = mxs_lradc_drive_y_plate(lradc);
-		chan = 4;
-		break;
-	case LRADC_SAMPLE_PRESSURE:
-		ctrl0 = mxs_lradc_drive_pressure(lradc);
-		chan = 5;
-		break;
-	}
-
-	if (change) {
-		mxs_lradc_reg_clear(lradc, mxs_lradc_plate_mask(lradc),
-						LRADC_CTRL0);
-		mxs_lradc_reg_set(lradc, ctrl0, LRADC_CTRL0);
-
-		mxs_lradc_reg_clear(lradc, LRADC_CTRL4_LRADCSELECT_MASK(slot),
-						LRADC_CTRL4);
-		mxs_lradc_reg_set(lradc,
-				chan << LRADC_CTRL4_LRADCSELECT_OFFSET(slot),
-				LRADC_CTRL4);
-	}
-
-	mxs_lradc_reg_clear(lradc, 0xffffffff, LRADC_CH(slot));
-	mxs_lradc_reg_set(lradc, 1 << slot, LRADC_CTRL0);
-
-	delay = jiffies + msecs_to_jiffies(LRADC_TS_SAMPLE_DELAY_MS);
-	do {
-		jiff = jiffies;
-		reg = readl_relaxed(lradc->base + LRADC_CTRL1);
-		if (reg & LRADC_CTRL1_LRADC_IRQ(slot))
-			break;
-	} while (time_before(jiff, delay));
-
-	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_LRADC_IRQ(slot), LRADC_CTRL1);
-
-	if (time_after_eq(jiff, delay))
-		return -ETIMEDOUT;
-
-	val = readl(lradc->base + LRADC_CH(slot));
-	val &= LRADC_CH_VALUE_MASK;
-
-	return val;
-}
-
-static int32_t mxs_lradc_ts_sample_filter(struct mxs_lradc *lradc,
-				enum lradc_ts_plate plate)
-{
-	int32_t val, tot = 0;
-	int i;
-
-	val = mxs_lradc_ts_sample(lradc, plate, 1);
-
-	/* Delay a bit so the touchscreen is stable. */
-	mdelay(2);
-
-	for (i = 0; i < LRADC_TS_SAMPLE_AMOUNT; i++) {
-		val = mxs_lradc_ts_sample(lradc, plate, 0);
-		tot += val;
-	}
-
-	return tot / LRADC_TS_SAMPLE_AMOUNT;
-}
-
-static void mxs_lradc_ts_work(struct work_struct *ts_work)
-{
-	struct mxs_lradc *lradc = container_of(ts_work,
-				struct mxs_lradc, ts_work);
-	int val_x, val_y, val_p;
-	bool valid = false;
-
-	while (mxs_lradc_ts_touched(lradc)) {
-		/* Disable touch detector so we can sample the touchscreen. */
-		mxs_lradc_reg_clear(lradc, mxs_lradc_touch_detect_bit(lradc),
-						LRADC_CTRL0);
-
-		if (likely(valid)) {
-			input_report_abs(lradc->ts_input, ABS_X, val_x);
-			input_report_abs(lradc->ts_input, ABS_Y, val_y);
-			input_report_abs(lradc->ts_input, ABS_PRESSURE, val_p);
-			input_report_key(lradc->ts_input, BTN_TOUCH, 1);
-			input_sync(lradc->ts_input);
-		}
-
-		valid = false;
-
-		val_x = mxs_lradc_ts_sample_filter(lradc, LRADC_SAMPLE_X);
-		if (val_x < 0)
-			continue;
-		val_y = mxs_lradc_ts_sample_filter(lradc, LRADC_SAMPLE_Y);
-		if (val_y < 0)
-			continue;
-		val_p = mxs_lradc_ts_sample_filter(lradc, LRADC_SAMPLE_PRESSURE);
-		if (val_p < 0)
-			continue;
-
-		valid = true;
-	}
-
-	input_report_abs(lradc->ts_input, ABS_PRESSURE, 0);
-	input_report_key(lradc->ts_input, BTN_TOUCH, 0);
-	input_sync(lradc->ts_input);
-
-	/* Restart the touchscreen interrupts. */
-	mxs_lradc_reg_clear(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ, LRADC_CTRL1);
-	mxs_lradc_reg_set(lradc, LRADC_CTRL1_TOUCH_DETECT_IRQ_EN, LRADC_CTRL1);
-}
-
 static int mxs_lradc_ts_open(struct input_dev *dev)
 {
 	struct mxs_lradc *lradc = input_get_drvdata(dev);
-- 
cgit 


From e9c88fb5cf05ae198323a3c992b41885397a0b48 Mon Sep 17 00:00:00 2001
From: Juergen Beisert <jbe@pengutronix.de>
Date: Mon, 23 Sep 2013 15:36:00 +0100
Subject: Staging/iio/adc/touchscreen/MXS: provide devicetree adaption
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This is an RFC for the new touchscreen properties.

Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Tested-by: Marek Vasut <marex@denx.de>
Acked-by: Marek Vasut <marex@denx.de>
Tested-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
CC: linux-arm-kernel@lists.infradead.org
CC: linux-input@vger.kernel.org
CC: devel@driverdev.osuosl.org
CC: Marek Vasut <marex@denx.de>
CC: Fabio Estevam <fabio.estevam@freescale.com>
CC: devicetree@vger.kernel.org
---
 .../bindings/staging/iio/adc/mxs-lradc.txt         | 36 ++++++++++++--
 arch/arm/boot/dts/imx28-evk.dts                    |  4 ++
 drivers/staging/iio/adc/mxs-lradc.c                | 57 ++++++++++++++--------
 3 files changed, 71 insertions(+), 26 deletions(-)

diff --git a/Documentation/devicetree/bindings/staging/iio/adc/mxs-lradc.txt b/Documentation/devicetree/bindings/staging/iio/adc/mxs-lradc.txt
index 46882058b59b..ee05dc390694 100644
--- a/Documentation/devicetree/bindings/staging/iio/adc/mxs-lradc.txt
+++ b/Documentation/devicetree/bindings/staging/iio/adc/mxs-lradc.txt
@@ -1,7 +1,8 @@
 * Freescale i.MX28 LRADC device driver
 
 Required properties:
-- compatible: Should be "fsl,imx28-lradc"
+- compatible: Should be "fsl,imx23-lradc" for i.MX23 SoC and "fsl,imx28-lradc"
+              for i.MX28 SoC
 - reg: Address and length of the register set for the device
 - interrupts: Should contain the LRADC interrupts
 
@@ -9,13 +10,38 @@ Optional properties:
 - fsl,lradc-touchscreen-wires: Number of wires used to connect the touchscreen
                                to LRADC. Valid value is either 4 or 5. If this
                                property is not present, then the touchscreen is
-                               disabled.
+                               disabled. 5 wires is valid for i.MX28 SoC only.
+- fsl,ave-ctrl: number of samples per direction to calculate an average value.
+                Allowed value is 1 ... 31, default is 4
+- fsl,ave-delay: delay between consecutive samples. Allowed value is
+                 1 ... 2047. It is used if 'fsl,ave-ctrl' > 1, counts at
+                 2 kHz and its default is 2 (= 1 ms)
+- fsl,settling: delay between plate switch to next sample. Allowed value is
+                1 ... 2047. It counts at 2 kHz and its default is
+                10 (= 5 ms)
 
-Examples:
+Example for i.MX23 SoC:
+
+	lradc@80050000 {
+		compatible = "fsl,imx23-lradc";
+		reg = <0x80050000 0x2000>;
+		interrupts = <36 37 38 39 40 41 42 43 44>;
+		status = "okay";
+		fsl,lradc-touchscreen-wires = <4>;
+		fsl,ave-ctrl = <4>;
+		fsl,ave-delay = <2>;
+		fsl,settling = <10>;
+	};
+
+Example for i.MX28 SoC:
 
 	lradc@80050000 {
 		compatible = "fsl,imx28-lradc";
 		reg = <0x80050000 0x2000>;
-		interrupts = <10 14 15 16 17 18 19
-				20 21 22 23 24 25>;
+		interrupts = <10 14 15 16 17 18 19 20 21 22 23 24 25>;
+		status = "okay";
+		fsl,lradc-touchscreen-wires = <5>;
+		fsl,ave-ctrl = <4>;
+		fsl,ave-delay = <2>;
+		fsl,settling = <10>;
 	};
diff --git a/arch/arm/boot/dts/imx28-evk.dts b/arch/arm/boot/dts/imx28-evk.dts
index 15715d921d14..aa33393903a8 100644
--- a/arch/arm/boot/dts/imx28-evk.dts
+++ b/arch/arm/boot/dts/imx28-evk.dts
@@ -183,6 +183,10 @@
 
 			lradc@80050000 {
 				status = "okay";
+				fsl,lradc-touchscreen-wires = <4>;
+				fsl,ave-ctrl = <4>;
+				fsl,ave-delay = <2>;
+				fsl,settling = <10>;
 			};
 
 			i2c0: i2c@80058000 {
diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index 18510d1ea5c8..dfd1bc1cc56f 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -1224,10 +1224,45 @@ MODULE_DEVICE_TABLE(of, mxs_lradc_dt_ids);
 static int mxs_lradc_probe_touchscreen(struct mxs_lradc *lradc,
 						struct device_node *lradc_node)
 {
-	/* TODO retrieve from device tree */
+	int ret;
+	u32 ts_wires = 0, adapt;
+
+	ret = of_property_read_u32(lradc_node, "fsl,lradc-touchscreen-wires",
+				&ts_wires);
+	if (ret)
+		return -ENODEV; /* touchscreen feature disabled */
+
+	switch (ts_wires) {
+	case 4:
+		lradc->use_touchscreen = MXS_LRADC_TOUCHSCREEN_4WIRE;
+		break;
+	case 5:
+		if (lradc->soc == IMX28_LRADC) {
+			lradc->use_touchscreen = MXS_LRADC_TOUCHSCREEN_5WIRE;
+			break;
+		}
+		/* fall through an error message for i.MX23 */
+	default:
+		dev_err(lradc->dev,
+			"Unsupported number of touchscreen wires (%d)\n",
+			ts_wires);
+		return -EINVAL;
+	}
+
 	lradc->over_sample_cnt = 4;
+	ret = of_property_read_u32(lradc_node, "fsl,ave-ctrl", &adapt);
+	if (ret == 0)
+		lradc->over_sample_cnt = adapt;
+
 	lradc->over_sample_delay = 2;
+	ret = of_property_read_u32(lradc_node, "fsl,ave-delay", &adapt);
+	if (ret == 0)
+		lradc->over_sample_delay = adapt;
+
 	lradc->settling_delay = 10;
+	ret = of_property_read_u32(lradc_node, "fsl,settling", &adapt);
+	if (ret == 0)
+		lradc->settling_delay = adapt;
 
 	return 0;
 }
@@ -1243,7 +1278,6 @@ static int mxs_lradc_probe(struct platform_device *pdev)
 	struct mxs_lradc *lradc;
 	struct iio_dev *iio;
 	struct resource *iores;
-	uint32_t ts_wires = 0;
 	int ret = 0, touch_ret;
 	int i;
 
@@ -1277,25 +1311,6 @@ static int mxs_lradc_probe(struct platform_device *pdev)
 
 	touch_ret = mxs_lradc_probe_touchscreen(lradc, node);
 
-	/* Check if touchscreen is enabled in DT. */
-	ret = of_property_read_u32(node, "fsl,lradc-touchscreen-wires",
-				&ts_wires);
-	if (ret)
-		dev_info(dev, "Touchscreen not enabled.\n");
-	else if (ts_wires == 4)
-		lradc->use_touchscreen = MXS_LRADC_TOUCHSCREEN_4WIRE;
-	else if (ts_wires == 5)
-		lradc->use_touchscreen = MXS_LRADC_TOUCHSCREEN_5WIRE;
-	else
-		dev_warn(dev, "Unsupported number of touchscreen wires (%d)\n",
-				ts_wires);
-
-	if ((lradc->soc == IMX23_LRADC) && (ts_wires == 5)) {
-		dev_warn(dev, "No support for 5 wire touches on i.MX23\n");
-		dev_warn(dev, "Falling back to 4 wire\n");
-		ts_wires = 4;
-	}
-
 	/* Grab all IRQ sources */
 	for (i = 0; i < of_cfg->irq_count; i++) {
 		lradc->irq[i] = platform_get_irq(pdev, i);
-- 
cgit 


From 0a440ee9b6a916322613de0c23080fb6d0fd6e26 Mon Sep 17 00:00:00 2001
From: Juergen Beisert <jbe@pengutronix.de>
Date: Mon, 23 Sep 2013 15:36:00 +0100
Subject: Staging/iio: add TODO reminder

Some things have still to be done to the LRADC driver.

Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Acked-by: Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
CC: linux-arm-kernel@lists.infradead.org
CC: linux-input@vger.kernel.org
CC: devel@driverdev.osuosl.org
CC: Marek Vasut <marex@denx.de>
CC: Fabio Estevam <fabio.estevam@freescale.com>
CC: Jonathan Cameron <jic23@cam.ac.uk>
---
 drivers/staging/iio/TODO | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/staging/iio/TODO b/drivers/staging/iio/TODO
index 04c23262f8e2..c22a0edd1528 100644
--- a/drivers/staging/iio/TODO
+++ b/drivers/staging/iio/TODO
@@ -13,6 +13,17 @@ Would be nice
 3) Expand device set. Lots of other maxim adc's have very
    similar interfaces.
 
+MXS LRADC driver:
+This is a classic MFD device as it combines the following subdevices
+ - touchscreen controller (input subsystem related device)
+ - general purpose ADC channels
+ - battery voltage monitor (power subsystem related device)
+ - die temperature monitor (thermal management)
+
+At least the battery voltage and die temperature feature is required in-kernel
+by a driver of the SoC's battery charging unit to avoid any damage to the
+silicon and the battery.
+
 TSL2561
 Would be nice
 1) Open question of userspace vs kernel space balance when
-- 
cgit 


From aaaae98022efa4f3c31042f1fdf9e7a0c5f04663 Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Tue, 1 Oct 2013 16:47:53 +0200
Subject: xfs: Use kmem_free() instead of free()

This fixes a build failure caused by calling the free() function which
does not exist in the Linux kernel.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_log_recover.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 43240583fd5b..39797490a1f1 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -1585,7 +1585,7 @@ xlog_recover_add_to_trans(
 		"bad number of regions (%d) in inode log format",
 				  in_f->ilf_size);
 			ASSERT(0);
-			free(ptr);
+			kmem_free(ptr);
 			return XFS_ERROR(EIO);
 		}
 
-- 
cgit 


From 7f69f8a4997ad12e062ddac8d6f996a50b26ebc2 Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Date: Tue, 17 Sep 2013 12:41:46 -0600
Subject: ARM: kirkwood: Remove kirkwood_setup_wins and rely on the DT binding

kirkwood_setup_wins is the last manual caller of mbus in kirkwood, don't
call it for DT boards and rely on the DT having a mbus node with
a proper ranges property to setup these windows.

Move all the mbus ranges properties for all boards into kirkwood.dtsi,
since they are currently all the same.

This makes the DT self consistent, since the physical address of the
NAND and CRYPTO are both referenced internally. The arbitary Linux
constants KIRKWOOD_NAND_MEM_PHYS_BASE and KIRKWOOD_SRAM_PHYS_BASE
no longer have to match the DT values.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/kirkwood-db-88f6281.dts              | 1 -
 arch/arm/boot/dts/kirkwood-db-88f6282.dts              | 1 -
 arch/arm/boot/dts/kirkwood-iconnect.dts                | 1 -
 arch/arm/boot/dts/kirkwood-mplcec4.dts                 | 1 -
 arch/arm/boot/dts/kirkwood-netgear_readynas_duo_v2.dts | 1 -
 arch/arm/boot/dts/kirkwood-nsa310.dts                  | 1 -
 arch/arm/boot/dts/kirkwood-ts219-6282.dts              | 1 -
 arch/arm/boot/dts/kirkwood.dtsi                        | 5 +++++
 arch/arm/mach-kirkwood/board-dt.c                      | 1 -
 9 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/arch/arm/boot/dts/kirkwood-db-88f6281.dts b/arch/arm/boot/dts/kirkwood-db-88f6281.dts
index 72c4b0a0366f..c39dd766c75a 100644
--- a/arch/arm/boot/dts/kirkwood-db-88f6281.dts
+++ b/arch/arm/boot/dts/kirkwood-db-88f6281.dts
@@ -19,7 +19,6 @@
 	compatible = "marvell,db-88f6281-bp", "marvell,kirkwood-88f6281", "marvell,kirkwood";
 
 	mbus {
-		ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000>;
 		pcie-controller {
 			status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood-db-88f6282.dts b/arch/arm/boot/dts/kirkwood-db-88f6282.dts
index 36c411d34926..701c6b6cdaa2 100644
--- a/arch/arm/boot/dts/kirkwood-db-88f6282.dts
+++ b/arch/arm/boot/dts/kirkwood-db-88f6282.dts
@@ -19,7 +19,6 @@
 	compatible = "marvell,db-88f6282-bp", "marvell,kirkwood-88f6282", "marvell,kirkwood";
 
 	mbus {
-		ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000>;
 		pcie-controller {
 			status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood-iconnect.dts b/arch/arm/boot/dts/kirkwood-iconnect.dts
index 0323f017eeed..b8150a768547 100644
--- a/arch/arm/boot/dts/kirkwood-iconnect.dts
+++ b/arch/arm/boot/dts/kirkwood-iconnect.dts
@@ -19,7 +19,6 @@
 	};
 
 	mbus {
-		ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000>;
 		pcie-controller {
 			status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood-mplcec4.dts b/arch/arm/boot/dts/kirkwood-mplcec4.dts
index ce2b94b513db..26ae24055d85 100644
--- a/arch/arm/boot/dts/kirkwood-mplcec4.dts
+++ b/arch/arm/boot/dts/kirkwood-mplcec4.dts
@@ -17,7 +17,6 @@
         };
 
 	mbus {
-		ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000>;
 		pcie-controller {
 			status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood-netgear_readynas_duo_v2.dts b/arch/arm/boot/dts/kirkwood-netgear_readynas_duo_v2.dts
index 874857ea9cb8..d3a5a0fe4821 100644
--- a/arch/arm/boot/dts/kirkwood-netgear_readynas_duo_v2.dts
+++ b/arch/arm/boot/dts/kirkwood-netgear_readynas_duo_v2.dts
@@ -17,7 +17,6 @@
 	};
 
 	mbus {
-		ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000>;
 		pcie-controller {
 			status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood-nsa310.dts b/arch/arm/boot/dts/kirkwood-nsa310.dts
index 7aeae0c2c1f4..b5418bcaecce 100644
--- a/arch/arm/boot/dts/kirkwood-nsa310.dts
+++ b/arch/arm/boot/dts/kirkwood-nsa310.dts
@@ -15,7 +15,6 @@
 	};
 
 	mbus {
-		ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000>;
 		pcie-controller {
 			status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood-ts219-6282.dts b/arch/arm/boot/dts/kirkwood-ts219-6282.dts
index 9efcd2dc79d3..345562f75891 100644
--- a/arch/arm/boot/dts/kirkwood-ts219-6282.dts
+++ b/arch/arm/boot/dts/kirkwood-ts219-6282.dts
@@ -6,7 +6,6 @@
 
 / {
 	mbus {
-		ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000>;
 		pcie-controller {
 			status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood.dtsi b/arch/arm/boot/dts/kirkwood.dtsi
index cf7aeaf89e9c..d1bbe955b439 100644
--- a/arch/arm/boot/dts/kirkwood.dtsi
+++ b/arch/arm/boot/dts/kirkwood.dtsi
@@ -27,6 +27,11 @@
 		compatible = "marvell,kirkwood-mbus", "simple-bus";
 		#address-cells = <2>;
 		#size-cells = <1>;
+		/* If a board file needs to change this ranges it must replace it completely */
+		ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000	/* internal-regs */
+			  MBUS_ID(0x01, 0x2f) 0 0xf4000000 0x10000	/* nand flash */
+			  MBUS_ID(0x03, 0x01) 0 0xf5000000 0x10000	/* crypto sram */
+			  >;
 		controller = <&mbusc>;
 		pcie-mem-aperture = <0xe0000000 0x10000000>; /* 256 MiB memory space */
 		pcie-io-aperture  = <0xf2000000 0x100000>;   /*   1 MiB    I/O space */
diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c
index 82d3ad8e87cf..f087b5f22425 100644
--- a/arch/arm/mach-kirkwood/board-dt.c
+++ b/arch/arm/mach-kirkwood/board-dt.c
@@ -92,7 +92,6 @@ static void __init kirkwood_dt_init(void)
 	writel(readl(CPU_CONFIG) & ~CPU_CONFIG_ERROR_PROP, CPU_CONFIG);
 
 	BUG_ON(mvebu_mbus_dt_init());
-	kirkwood_setup_wins();
 
 	kirkwood_l2_init();
 
-- 
cgit 


From 1e5c76d40fd41194472b4c1b369d7d63df0bea03 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 09:55:12 +0530
Subject: net: ethernet: cpsw: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/ti/cpsw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 5efb37bf0681..7290f11a937d 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -2217,7 +2217,7 @@ static struct platform_driver cpsw_driver = {
 		.name	 = "cpsw",
 		.owner	 = THIS_MODULE,
 		.pm	 = &cpsw_pm_ops,
-		.of_match_table = of_match_ptr(cpsw_of_mtable),
+		.of_match_table = cpsw_of_mtable,
 	},
 	.probe = cpsw_probe,
 	.remove = cpsw_remove,
-- 
cgit 


From 2afc6dff692ea37c2dff0bdba452a85fe522cffd Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 09:55:13 +0530
Subject: net: ethernet: cpsw-phy-sel: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/ti/cpsw-phy-sel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/ti/cpsw-phy-sel.c b/drivers/net/ethernet/ti/cpsw-phy-sel.c
index e092edeab650..148da9ae8366 100644
--- a/drivers/net/ethernet/ti/cpsw-phy-sel.c
+++ b/drivers/net/ethernet/ti/cpsw-phy-sel.c
@@ -152,7 +152,7 @@ static struct platform_driver cpsw_phy_sel_driver = {
 	.driver		= {
 		.name	= "cpsw-phy-sel",
 		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(cpsw_phy_sel_id_table),
+		.of_match_table = cpsw_phy_sel_id_table,
 	},
 };
 
-- 
cgit 


From b85f75ea040223519101eb97ee95e23470a73b71 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 09:55:14 +0530
Subject: net: can: c_can_platform: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Marc Kleine-Budde <mkl@pengutronix.de>
Cc: linux-can@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/can/c_can/c_can_platform.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/c_can/c_can_platform.c b/drivers/net/can/c_can/c_can_platform.c
index 294ced3cc227..d66ac265269c 100644
--- a/drivers/net/can/c_can/c_can_platform.c
+++ b/drivers/net/can/c_can/c_can_platform.c
@@ -322,7 +322,7 @@ static struct platform_driver c_can_plat_driver = {
 	.driver = {
 		.name = KBUILD_MODNAME,
 		.owner = THIS_MODULE,
-		.of_match_table = of_match_ptr(c_can_of_table),
+		.of_match_table = c_can_of_table,
 	},
 	.probe = c_can_plat_probe,
 	.remove = c_can_plat_remove,
-- 
cgit 


From 34a300909e5e795500fcf7d3b971751fc65ed67b Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Date: Tue, 17 Sep 2013 12:43:09 -0600
Subject: ARM: kirkwood: Move the crypto node under the mbus node

There should be no nodes that are not children of the mbus. Move
the crypto node under the mbus.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/kirkwood.dtsi | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/arch/arm/boot/dts/kirkwood.dtsi b/arch/arm/boot/dts/kirkwood.dtsi
index d1bbe955b439..76b16271362a 100644
--- a/arch/arm/boot/dts/kirkwood.dtsi
+++ b/arch/arm/boot/dts/kirkwood.dtsi
@@ -35,13 +35,22 @@
 		controller = <&mbusc>;
 		pcie-mem-aperture = <0xe0000000 0x10000000>; /* 256 MiB memory space */
 		pcie-io-aperture  = <0xf2000000 0x100000>;   /*   1 MiB    I/O space */
+
+		crypto@0301 {
+			compatible = "marvell,orion-crypto";
+			reg = <MBUS_ID(0xf0, 0x01) 0x30000 0x10000>,
+			      <MBUS_ID(0x03, 0x01) 0 0x800>;
+			reg-names = "regs", "sram";
+			interrupts = <22>;
+			clocks = <&gate_clk 17>;
+			status = "okay";
+		};
 	};
 
 	ocp@f1000000 {
 		compatible = "simple-bus";
 		ranges = <0x00000000 0xf1000000 0x0100000
-		          0xf4000000 0xf4000000 0x0000400
-		          0xf5000000 0xf5000000 0x0000400>;
+		          0xf4000000 0xf4000000 0x0000400>;
 		#address-cells = <1>;
 		#size-cells = <1>;
 
@@ -222,16 +231,6 @@
 			status = "disabled";
 		};
 
-		crypto@30000 {
-			compatible = "marvell,orion-crypto";
-			reg = <0x30000 0x10000>,
-			      <0xf5000000 0x800>;
-			reg-names = "regs", "sram";
-			interrupts = <22>;
-			clocks = <&gate_clk 17>;
-			status = "okay";
-		};
-
 		mdio: mdio-bus@72004 {
 			compatible = "marvell,orion-mdio";
 			#address-cells = <1>;
-- 
cgit 


From 7045ff5a5322fa7461d7255c15ad1896bd659440 Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Date: Tue, 17 Sep 2013 12:44:33 -0600
Subject: ARM: kirkwood: Move the nand node under the mbus node

There should be no nodes that are not children of the mbus. Move
the nand node under the mbus, and rework the board .dts files
to use an & reference to the nand node.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/kirkwood-db.dtsi                 | 44 +++++------
 arch/arm/boot/dts/kirkwood-dnskw.dtsi              | 76 +++++++++----------
 arch/arm/boot/dts/kirkwood-dockstar.dts            | 40 +++++-----
 arch/arm/boot/dts/kirkwood-goflexnet.dts           | 51 ++++++-------
 .../arm/boot/dts/kirkwood-guruplug-server-plus.dts | 40 +++++-----
 arch/arm/boot/dts/kirkwood-ib62x0.dts              | 44 +++++------
 arch/arm/boot/dts/kirkwood-iconnect.dts            | 58 +++++++--------
 arch/arm/boot/dts/kirkwood-iomega_ix2_200.dts      | 51 ++++++-------
 arch/arm/boot/dts/kirkwood-km_kirkwood.dts         | 14 ++--
 arch/arm/boot/dts/kirkwood-mplcec4.dts             | 62 ++++++++--------
 .../boot/dts/kirkwood-netgear_readynas_duo_v2.dts  | 60 +++++++--------
 arch/arm/boot/dts/kirkwood-nsa310-common.dtsi      | 86 +++++++++++-----------
 arch/arm/boot/dts/kirkwood-openblocks_a6.dts       | 74 +++++++++----------
 arch/arm/boot/dts/kirkwood-sheevaplug-common.dtsi  | 42 +++++------
 arch/arm/boot/dts/kirkwood-topkick.dts             | 62 ++++++++--------
 arch/arm/boot/dts/kirkwood.dtsi                    | 31 ++++----
 16 files changed, 418 insertions(+), 417 deletions(-)

diff --git a/arch/arm/boot/dts/kirkwood-db.dtsi b/arch/arm/boot/dts/kirkwood-db.dtsi
index c0e2a5879174..053aa20fb30f 100644
--- a/arch/arm/boot/dts/kirkwood-db.dtsi
+++ b/arch/arm/boot/dts/kirkwood-db.dtsi
@@ -39,28 +39,6 @@
 			status = "ok";
 		};
 
-		nand@3000000 {
-			pinctrl-0 = <&pmx_nand>;
-			pinctrl-names = "default";
-			chip-delay = <25>;
-			status = "okay";
-
-			partition@0 {
-				label = "uboot";
-				reg = <0x0 0x100000>;
-			};
-
-			partition@100000 {
-				label = "uImage";
-				reg = <0x100000 0x400000>;
-			};
-
-			partition@500000 {
-				label = "root";
-				reg = <0x500000 0x1fb00000>;
-			};
-		};
-
 		sata@80000 {
 			nr-ports = <2>;
 			status = "okay";
@@ -80,6 +58,28 @@
 	};
 };
 
+&nand {
+	pinctrl-0 = <&pmx_nand>;
+	pinctrl-names = "default";
+	chip-delay = <25>;
+	status = "okay";
+
+	partition@0 {
+		label = "uboot";
+		reg = <0x0 0x100000>;
+	};
+
+	partition@100000 {
+		label = "uImage";
+		reg = <0x100000 0x400000>;
+	};
+
+	partition@500000 {
+		label = "root";
+		reg = <0x500000 0x1fb00000>;
+	};
+};
+
 &mdio {
 	status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood-dnskw.dtsi b/arch/arm/boot/dts/kirkwood-dnskw.dtsi
index d544f77a4ca4..aefa375a550d 100644
--- a/arch/arm/boot/dts/kirkwood-dnskw.dtsi
+++ b/arch/arm/boot/dts/kirkwood-dnskw.dtsi
@@ -148,44 +148,6 @@
 			status = "okay";
 			nr-ports = <2>;
 		};
-
-		nand@3000000 {
-			pinctrl-0 = <&pmx_nand>;
-			pinctrl-names = "default";
-			status = "okay";
-			chip-delay = <35>;
-
-			partition@0 {
-				label = "u-boot";
-				reg = <0x0000000 0x100000>;
-				read-only;
-			};
-
-			partition@100000 {
-				label = "uImage";
-				reg = <0x0100000 0x500000>;
-			};
-
-			partition@600000 {
-				label = "ramdisk";
-				reg = <0x0600000 0x500000>;
-			};
-
-			partition@b00000 {
-				label = "image";
-				reg = <0x0b00000 0x6600000>;
-			};
-
-			partition@7100000 {
-				label = "mini firmware";
-				reg = <0x7100000 0xa00000>;
-			};
-
-			partition@7b00000 {
-				label = "config";
-				reg = <0x7b00000 0x500000>;
-			};
-		};
 	};
 
 	regulators {
@@ -220,6 +182,44 @@
 	};
 };
 
+&nand {
+	pinctrl-0 = <&pmx_nand>;
+	pinctrl-names = "default";
+	status = "okay";
+	chip-delay = <35>;
+
+	partition@0 {
+		label = "u-boot";
+		reg = <0x0000000 0x100000>;
+		read-only;
+	};
+
+	partition@100000 {
+		label = "uImage";
+		reg = <0x0100000 0x500000>;
+	};
+
+	partition@600000 {
+		label = "ramdisk";
+		reg = <0x0600000 0x500000>;
+	};
+
+	partition@b00000 {
+		label = "image";
+		reg = <0x0b00000 0x6600000>;
+	};
+
+	partition@7100000 {
+		label = "mini firmware";
+		reg = <0x7100000 0xa00000>;
+	};
+
+	partition@7b00000 {
+		label = "config";
+		reg = <0x7b00000 0x500000>;
+	};
+};
+
 &mdio {
 	status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood-dockstar.dts b/arch/arm/boot/dts/kirkwood-dockstar.dts
index 59a2117c35a7..33ff368fbfa5 100644
--- a/arch/arm/boot/dts/kirkwood-dockstar.dts
+++ b/arch/arm/boot/dts/kirkwood-dockstar.dts
@@ -34,26 +34,6 @@
 		serial@12000 {
 			status = "ok";
 		};
-
-		nand@3000000 {
-			status = "okay";
-
-			partition@0 {
-				label = "u-boot";
-				reg = <0x0000000 0x100000>;
-				read-only;
-			};
-
-			partition@100000 {
-				label = "uImage";
-				reg = <0x0100000 0x400000>;
-			};
-
-			partition@500000 {
-				label = "data";
-				reg = <0x0500000 0xfb00000>;
-			};
-		};
 	};
 	gpio-leds {
 		compatible = "gpio-leds";
@@ -91,6 +71,26 @@
 	};
 };
 
+&nand {
+	status = "okay";
+
+	partition@0 {
+		label = "u-boot";
+		reg = <0x0000000 0x100000>;
+		read-only;
+	};
+
+	partition@100000 {
+		label = "uImage";
+		reg = <0x0100000 0x400000>;
+	};
+
+	partition@500000 {
+		label = "data";
+		reg = <0x0500000 0xfb00000>;
+	};
+};
+
 &mdio {
 	status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood-goflexnet.dts b/arch/arm/boot/dts/kirkwood-goflexnet.dts
index 6f7c7d7ecf2a..a43bebb25110 100644
--- a/arch/arm/boot/dts/kirkwood-goflexnet.dts
+++ b/arch/arm/boot/dts/kirkwood-goflexnet.dts
@@ -67,31 +67,6 @@
 			status = "ok";
 		};
 
-		nand@3000000 {
-			chip-delay = <40>;
-			status = "okay";
-
-			partition@0 {
-				label = "u-boot";
-				reg = <0x0000000 0x100000>;
-				read-only;
-			};
-
-			partition@100000 {
-				label = "uImage";
-				reg = <0x0100000 0x400000>;
-			};
-
-			partition@500000 {
-				label = "pogoplug";
-				reg = <0x0500000 0x2000000>;
-			};
-
-			partition@2500000 {
-				label = "root";
-				reg = <0x02500000 0xd800000>;
-			};
-		};
 		sata@80000 {
 			status = "okay";
 			nr-ports = <2>;
@@ -171,6 +146,32 @@
 	};
 };
 
+&nand {
+	chip-delay = <40>;
+	status = "okay";
+
+	partition@0 {
+		label = "u-boot";
+		reg = <0x0000000 0x100000>;
+		read-only;
+	};
+
+	partition@100000 {
+		label = "uImage";
+		reg = <0x0100000 0x400000>;
+	};
+
+	partition@500000 {
+		label = "pogoplug";
+		reg = <0x0500000 0x2000000>;
+	};
+
+	partition@2500000 {
+		label = "root";
+		reg = <0x02500000 0xd800000>;
+	};
+};
+
 &mdio {
 	status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts b/arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts
index 6548b9dc6855..d30a91a5047d 100644
--- a/arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts
+++ b/arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts
@@ -40,26 +40,6 @@
 			status = "ok";
 		};
 
-		nand@3000000 {
-			status = "okay";
-
-			partition@0 {
-				label = "u-boot";
-				reg = <0x00000000 0x00100000>;
-				read-only;
-			};
-
-			partition@100000 {
-				label = "uImage";
-				reg = <0x00100000 0x00400000>;
-			};
-
-			partition@500000 {
-				label = "data";
-				reg = <0x00500000 0x1fb00000>;
-			};
-		};
-
 		sata@80000 {
 			status = "okay";
 			nr-ports = <1>;
@@ -97,6 +77,26 @@
 	};
 };
 
+&nand {
+	status = "okay";
+
+	partition@0 {
+		label = "u-boot";
+		reg = <0x00000000 0x00100000>;
+		read-only;
+	};
+
+	partition@100000 {
+		label = "uImage";
+		reg = <0x00100000 0x00400000>;
+	};
+
+	partition@500000 {
+		label = "data";
+		reg = <0x00500000 0x1fb00000>;
+	};
+};
+
 &mdio {
 	status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood-ib62x0.dts b/arch/arm/boot/dts/kirkwood-ib62x0.dts
index cb711a3bd983..066f40f99816 100644
--- a/arch/arm/boot/dts/kirkwood-ib62x0.dts
+++ b/arch/arm/boot/dts/kirkwood-ib62x0.dts
@@ -51,28 +51,6 @@
 			status = "okay";
 			nr-ports = <2>;
 		};
-
-		nand@3000000 {
-			status = "okay";
-			pinctrl-0 = <&pmx_nand>;
-			pinctrl-names = "default";
-
-			partition@0 {
-				label = "u-boot";
-				reg = <0x0000000 0x100000>;
-			};
-
-			partition@100000 {
-				label = "uImage";
-				reg = <0x0100000 0x600000>;
-			};
-
-			partition@700000 {
-				label = "root";
-				reg = <0x0700000 0xf900000>;
-			};
-
-		};
 	};
 
 	gpio_keys {
@@ -123,6 +101,28 @@
 
 };
 
+&nand {
+	status = "okay";
+	pinctrl-0 = <&pmx_nand>;
+	pinctrl-names = "default";
+
+	partition@0 {
+		label = "u-boot";
+		reg = <0x0000000 0x100000>;
+	};
+
+	partition@100000 {
+		label = "uImage";
+		reg = <0x0100000 0x600000>;
+	};
+
+	partition@700000 {
+		label = "root";
+		reg = <0x0700000 0xf900000>;
+	};
+
+};
+
 &mdio {
 	status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood-iconnect.dts b/arch/arm/boot/dts/kirkwood-iconnect.dts
index b8150a768547..4a62b206f680 100644
--- a/arch/arm/boot/dts/kirkwood-iconnect.dts
+++ b/arch/arm/boot/dts/kirkwood-iconnect.dts
@@ -82,35 +82,6 @@
 		serial@12000 {
 			status = "ok";
 		};
-
-		nand@3000000 {
-			status = "okay";
-
-			partition@0 {
-				label = "uboot";
-				reg = <0x0000000 0xc0000>;
-			};
-
-			partition@a0000 {
-				label = "env";
-				reg = <0xa0000 0x20000>;
-			};
-
-			partition@100000 {
-				label = "zImage";
-				reg = <0x100000 0x300000>;
-			};
-
-			partition@540000 {
-				label = "initrd";
-				reg = <0x540000 0x300000>;
-			};
-
-			partition@980000 {
-				label = "boot";
-				reg = <0x980000 0x1f400000>;
-			};
-		};
 	};
 
 	gpio-leds {
@@ -179,6 +150,35 @@
 	};
 };
 
+&nand {
+	status = "okay";
+
+	partition@0 {
+		label = "uboot";
+		reg = <0x0000000 0xc0000>;
+	};
+
+	partition@a0000 {
+		label = "env";
+		reg = <0xa0000 0x20000>;
+	};
+
+	partition@100000 {
+		label = "zImage";
+		reg = <0x100000 0x300000>;
+	};
+
+	partition@540000 {
+		label = "initrd";
+		reg = <0x540000 0x300000>;
+	};
+
+	partition@980000 {
+		label = "boot";
+		reg = <0x980000 0x1f400000>;
+	};
+};
+
 &mdio {
 	status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood-iomega_ix2_200.dts b/arch/arm/boot/dts/kirkwood-iomega_ix2_200.dts
index df8447442b37..d15395d671ed 100644
--- a/arch/arm/boot/dts/kirkwood-iomega_ix2_200.dts
+++ b/arch/arm/boot/dts/kirkwood-iomega_ix2_200.dts
@@ -113,31 +113,6 @@
 			status = "ok";
 		};
 
-		nand@3000000 {
-			status = "okay";
-
-			partition@0 {
-				label = "u-boot";
-				reg = <0x0000000 0x100000>;
-				read-only;
-			};
-
-			partition@a0000 {
-				label = "env";
-				reg = <0xa0000 0x20000>;
-				read-only;
-			};
-
-			partition@100000 {
-				label = "uImage";
-				reg = <0x100000 0x300000>;
-			};
-
-			partition@400000 {
-				label = "uInitrd";
-				reg = <0x540000 0x1000000>;
-			};
-		};
 		sata@80000 {
 			status = "okay";
 			nr-ports = <2>;
@@ -195,6 +170,32 @@
 	};
 };
 
+&nand {
+	status = "okay";
+
+	partition@0 {
+		label = "u-boot";
+		reg = <0x0000000 0x100000>;
+		read-only;
+	};
+
+	partition@a0000 {
+		label = "env";
+		reg = <0xa0000 0x20000>;
+		read-only;
+	};
+
+	partition@100000 {
+		label = "uImage";
+		reg = <0x100000 0x300000>;
+	};
+
+	partition@400000 {
+		label = "uInitrd";
+		reg = <0x540000 0x1000000>;
+	};
+};
+
 &mdio {
 	status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood-km_kirkwood.dts b/arch/arm/boot/dts/kirkwood-km_kirkwood.dts
index 6899408482d2..cd44f37e54b5 100644
--- a/arch/arm/boot/dts/kirkwood-km_kirkwood.dts
+++ b/arch/arm/boot/dts/kirkwood-km_kirkwood.dts
@@ -34,13 +34,6 @@
 		serial@12000 {
 			status = "ok";
 		};
-
-		nand@3000000 {
-			pinctrl-0 = <&pmx_nand>;
-			pinctrl-names = "default";
-			status = "ok";
-			chip-delay = <25>;
-		};
 	};
 
 	i2c@0 {
@@ -51,6 +44,13 @@
 	};
 };
 
+&nand {
+	pinctrl-0 = <&pmx_nand>;
+	pinctrl-names = "default";
+	status = "ok";
+	chip-delay = <25>;
+};
+
 &mdio {
 	status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood-mplcec4.dts b/arch/arm/boot/dts/kirkwood-mplcec4.dts
index 26ae24055d85..6c1ec2786e6e 100644
--- a/arch/arm/boot/dts/kirkwood-mplcec4.dts
+++ b/arch/arm/boot/dts/kirkwood-mplcec4.dts
@@ -95,37 +95,6 @@
                         pinctrl-names = "default";
                 };
 
-                nand@3000000 {
-                        pinctrl-0 = <&pmx_nand>;
-                        pinctrl-names = "default";
-                        status = "okay";
-
-                        partition@0 {
-                                label = "uboot";
-                                reg = <0x0000000 0x100000>;
-                        };
-
-                        partition@100000 {
-                                label = "env";
-                                reg = <0x100000 0x80000>;
-                        };
-
-                        partition@180000 {
-                                label = "fdt";
-                                reg = <0x180000 0x80000>;
-                        };
-
-                        partition@200000 {
-                                label = "kernel";
-                                reg = <0x200000 0x400000>;
-                        };
-
-                        partition@600000 {
-                                label = "rootfs";
-                                reg = <0x600000 0x1fa00000>;
-                        };
-                };
-
 		rtc@10300 {
 			status = "disabled";
 		};
@@ -193,6 +162,37 @@
 	};
 };
 
+&nand {
+	pinctrl-0 = <&pmx_nand>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	partition@0 {
+		label = "uboot";
+		reg = <0x0000000 0x100000>;
+	};
+
+	partition@100000 {
+		label = "env";
+		reg = <0x100000 0x80000>;
+	};
+
+	partition@180000 {
+		label = "fdt";
+		reg = <0x180000 0x80000>;
+	};
+
+	partition@200000 {
+		label = "kernel";
+		reg = <0x200000 0x400000>;
+	};
+
+	partition@600000 {
+		label = "rootfs";
+		reg = <0x600000 0x1fa00000>;
+	};
+};
+
 &mdio {
 	status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood-netgear_readynas_duo_v2.dts b/arch/arm/boot/dts/kirkwood-netgear_readynas_duo_v2.dts
index d3a5a0fe4821..e6a102cf424c 100644
--- a/arch/arm/boot/dts/kirkwood-netgear_readynas_duo_v2.dts
+++ b/arch/arm/boot/dts/kirkwood-netgear_readynas_duo_v2.dts
@@ -97,36 +97,6 @@
 			status = "okay";
 		};
 
-		nand@3000000 {
-			status = "okay";
-
-			partition@0 {
-				label = "u-boot";
-				reg = <0x0000000 0x180000>;
-				read-only;
-			};
-
-			partition@180000 {
-				label = "u-boot-env";
-				reg = <0x180000 0x20000>;
-			};
-
-			partition@200000 {
-				label = "uImage";
-				reg = <0x0200000 0x600000>;
-			};
-
-			partition@800000 {
-				label = "minirootfs";
-				reg = <0x0800000 0x1000000>;
-			};
-
-			partition@1800000 {
-				label = "jffs2";
-				reg = <0x1800000 0x6800000>;
-			};
-		};
-
 		sata@80000 {
 			status = "okay";
 			nr-ports = <2>;
@@ -207,6 +177,36 @@
         };
 };
 
+&nand {
+	status = "okay";
+
+	partition@0 {
+		label = "u-boot";
+		reg = <0x0000000 0x180000>;
+		read-only;
+	};
+
+	partition@180000 {
+		label = "u-boot-env";
+		reg = <0x180000 0x20000>;
+	};
+
+	partition@200000 {
+		label = "uImage";
+		reg = <0x0200000 0x600000>;
+	};
+
+	partition@800000 {
+		label = "minirootfs";
+		reg = <0x0800000 0x1000000>;
+	};
+
+	partition@1800000 {
+		label = "jffs2";
+		reg = <0x1800000 0x6800000>;
+	};
+};
+
 &mdio {
 	status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood-nsa310-common.dtsi b/arch/arm/boot/dts/kirkwood-nsa310-common.dtsi
index 06267a91de38..e3f915defd3d 100644
--- a/arch/arm/boot/dts/kirkwood-nsa310-common.dtsi
+++ b/arch/arm/boot/dts/kirkwood-nsa310-common.dtsi
@@ -27,49 +27,6 @@
 			nr-ports = <2>;
 		};
 
-		nand@3000000 {
-			status = "okay";
-			chip-delay = <35>;
-
-			partition@0 {
-				label = "uboot";
-				reg = <0x0000000 0x0100000>;
-				read-only;
-			};
-			partition@100000 {
-				label = "uboot_env";
-				reg = <0x0100000 0x0080000>;
-			};
-			partition@180000 {
-				label = "key_store";
-				reg = <0x0180000 0x0080000>;
-			};
-			partition@200000 {
-				label = "info";
-				reg = <0x0200000 0x0080000>;
-			};
-			partition@280000 {
-				label = "etc";
-				reg = <0x0280000 0x0a00000>;
-			};
-			partition@c80000 {
-				label = "kernel_1";
-				reg = <0x0c80000 0x0a00000>;
-			};
-			partition@1680000 {
-				label = "rootfs1";
-				reg = <0x1680000 0x2fc0000>;
-			};
-			partition@4640000 {
-				label = "kernel_2";
-				reg = <0x4640000 0x0a00000>;
-			};
-			partition@5040000 {
-				label = "rootfs2";
-				reg = <0x5040000 0x2fc0000>;
-			};
-		};
-
 		pcie-controller {
 			status = "okay";
 
@@ -105,3 +62,46 @@
 		};
 	};
 };
+
+&nand {
+	status = "okay";
+	chip-delay = <35>;
+
+	partition@0 {
+		label = "uboot";
+		reg = <0x0000000 0x0100000>;
+		read-only;
+	};
+	partition@100000 {
+		label = "uboot_env";
+		reg = <0x0100000 0x0080000>;
+	};
+	partition@180000 {
+		label = "key_store";
+		reg = <0x0180000 0x0080000>;
+	};
+	partition@200000 {
+		label = "info";
+		reg = <0x0200000 0x0080000>;
+	};
+	partition@280000 {
+		label = "etc";
+		reg = <0x0280000 0x0a00000>;
+	};
+	partition@c80000 {
+		label = "kernel_1";
+		reg = <0x0c80000 0x0a00000>;
+	};
+	partition@1680000 {
+		label = "rootfs1";
+		reg = <0x1680000 0x2fc0000>;
+	};
+	partition@4640000 {
+		label = "kernel_2";
+		reg = <0x4640000 0x0a00000>;
+	};
+	partition@5040000 {
+		label = "rootfs2";
+		reg = <0x5040000 0x2fc0000>;
+	};
+};
diff --git a/arch/arm/boot/dts/kirkwood-openblocks_a6.dts b/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
index 85ccf8d8abb1..f0e3d213604c 100644
--- a/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
+++ b/arch/arm/boot/dts/kirkwood-openblocks_a6.dts
@@ -29,43 +29,6 @@
 			pinctrl-names = "default";
 		};
 
-		nand@3000000 {
-			chip-delay = <25>;
-			status = "okay";
-			pinctrl-0 = <&pmx_nand>;
-			pinctrl-names = "default";
-
-			partition@0 {
-				label = "uboot";
-				reg = <0x0 0x90000>;
-			};
-
-			partition@90000 {
-				label = "env";
-				reg = <0x90000 0x44000>;
-			};
-
-			partition@d4000 {
-				label = "test";
-				reg = <0xd4000 0x24000>;
-			};
-
-			partition@f4000 {
-				label = "conf";
-				reg = <0xf4000 0x400000>;
-			};
-
-			partition@4f4000 {
-				label = "linux";
-				reg = <0x4f4000 0x1d20000>;
-			};
-
-			partition@2214000 {
-				label = "user";
-				reg = <0x2214000 0x1dec000>;
-			};
-		};
-
 		sata@80000 {
 			nr-ports = <1>;
 			status = "okay";
@@ -167,6 +130,43 @@
 	};
 };
 
+&nand {
+	chip-delay = <25>;
+	status = "okay";
+	pinctrl-0 = <&pmx_nand>;
+	pinctrl-names = "default";
+
+	partition@0 {
+		label = "uboot";
+		reg = <0x0 0x90000>;
+	};
+
+	partition@90000 {
+		label = "env";
+		reg = <0x90000 0x44000>;
+	};
+
+	partition@d4000 {
+		label = "test";
+		reg = <0xd4000 0x24000>;
+	};
+
+	partition@f4000 {
+		label = "conf";
+		reg = <0xf4000 0x400000>;
+	};
+
+	partition@4f4000 {
+		label = "linux";
+		reg = <0x4f4000 0x1d20000>;
+	};
+
+	partition@2214000 {
+		label = "user";
+		reg = <0x2214000 0x1dec000>;
+	};
+};
+
 &mdio {
 	status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood-sheevaplug-common.dtsi b/arch/arm/boot/dts/kirkwood-sheevaplug-common.dtsi
index 5696b630b70b..1173d7fb31b2 100644
--- a/arch/arm/boot/dts/kirkwood-sheevaplug-common.dtsi
+++ b/arch/arm/boot/dts/kirkwood-sheevaplug-common.dtsi
@@ -48,27 +48,6 @@
 			pinctrl-names = "default";
 			status = "okay";
 		};
-
-		nand@3000000 {
-			pinctrl-0 = <&pmx_nand>;
-			pinctrl-names = "default";
-			status = "okay";
-
-			partition@0 {
-				label = "u-boot";
-				reg = <0x0000000 0x100000>;
-			};
-
-			partition@100000 {
-				label = "uImage";
-				reg = <0x0100000 0x400000>;
-			};
-
-			partition@500000 {
-				label = "root";
-				reg = <0x0500000 0x1fb00000>;
-			};
-		};
 	};
 
 	regulators {
@@ -92,6 +71,27 @@
 	};
 };
 
+&nand {
+	pinctrl-0 = <&pmx_nand>;
+	pinctrl-names = "default";
+	status = "okay";
+
+	partition@0 {
+		label = "u-boot";
+		reg = <0x0000000 0x100000>;
+	};
+
+	partition@100000 {
+		label = "uImage";
+		reg = <0x0100000 0x400000>;
+	};
+
+	partition@500000 {
+		label = "root";
+		reg = <0x0500000 0x1fb00000>;
+	};
+};
+
 &mdio {
 	status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood-topkick.dts b/arch/arm/boot/dts/kirkwood-topkick.dts
index 30842b4ff293..320da677b984 100644
--- a/arch/arm/boot/dts/kirkwood-topkick.dts
+++ b/arch/arm/boot/dts/kirkwood-topkick.dts
@@ -90,37 +90,6 @@
 			pinctrl-names = "default";
 		};
 
-		nand@3000000 {
-			status = "okay";
-			pinctrl-0 = <&pmx_nand>;
-			pinctrl-names = "default";
-
-			partition@0 {
-				label = "u-boot";
-				reg = <0x0000000 0x180000>;
-			};
-
-			partition@180000 {
-				label = "u-boot env";
-				reg = <0x0180000 0x20000>;
-			};
-
-			partition@200000 {
-				label = "uImage";
-				reg = <0x0200000 0x600000>;
-			};
-
-			partition@800000 {
-				label = "uInitrd";
-				reg = <0x0800000 0x1000000>;
-			};
-
-			partition@1800000 {
-				label = "rootfs";
-				reg = <0x1800000 0xe800000>;
-			};
-		};
-
 		sata@80000 {
 			status = "okay";
 			nr-ports = <1>;
@@ -204,6 +173,37 @@
 	};
 };
 
+&nand {
+	status = "okay";
+	pinctrl-0 = <&pmx_nand>;
+	pinctrl-names = "default";
+
+	partition@0 {
+		label = "u-boot";
+		reg = <0x0000000 0x180000>;
+	};
+
+	partition@180000 {
+		label = "u-boot env";
+		reg = <0x0180000 0x20000>;
+	};
+
+	partition@200000 {
+		label = "uImage";
+		reg = <0x0200000 0x600000>;
+	};
+
+	partition@800000 {
+		label = "uInitrd";
+		reg = <0x0800000 0x1000000>;
+	};
+
+	partition@1800000 {
+		label = "rootfs";
+		reg = <0x1800000 0xe800000>;
+	};
+};
+
 &mdio {
 	status = "okay";
 
diff --git a/arch/arm/boot/dts/kirkwood.dtsi b/arch/arm/boot/dts/kirkwood.dtsi
index 76b16271362a..632b64701ecd 100644
--- a/arch/arm/boot/dts/kirkwood.dtsi
+++ b/arch/arm/boot/dts/kirkwood.dtsi
@@ -45,12 +45,25 @@
 			clocks = <&gate_clk 17>;
 			status = "okay";
 		};
+
+		nand: nand@012f {
+			#address-cells = <1>;
+			#size-cells = <1>;
+			cle = <0>;
+			ale = <1>;
+			bank-width = <1>;
+			compatible = "marvell,orion-nand";
+			reg = <MBUS_ID(0x01, 0x2f) 0 0x400>;
+			chip-delay = <25>;
+			/* set partition map and/or chip-delay in board dts */
+			clocks = <&gate_clk 7>;
+			status = "disabled";
+		};
 	};
 
 	ocp@f1000000 {
 		compatible = "simple-bus";
-		ranges = <0x00000000 0xf1000000 0x0100000
-		          0xf4000000 0xf4000000 0x0000400>;
+		ranges = <0x00000000 0xf1000000 0x0100000>;
 		#address-cells = <1>;
 		#size-cells = <1>;
 
@@ -206,20 +219,6 @@
 			status = "okay";
 		};
 
-		nand@3000000 {
-			#address-cells = <1>;
-			#size-cells = <1>;
-			cle = <0>;
-			ale = <1>;
-			bank-width = <1>;
-			compatible = "marvell,orion-nand";
-			reg = <0xf4000000 0x400>;
-			chip-delay = <25>;
-			/* set partition map and/or chip-delay in board dts */
-			clocks = <&gate_clk 7>;
-			status = "disabled";
-		};
-
 		i2c@11000 {
 			compatible = "marvell,mv64xxx-i2c";
 			reg = <0x11000 0x20>;
-- 
cgit 


From a07b5b840c5f4fda31b835806c0095408637f432 Mon Sep 17 00:00:00 2001
From: Vladimir Murzin <murzin.v@gmail.com>
Date: Sun, 29 Sep 2013 15:54:31 +0200
Subject: ath6kl: fix compilation warning in ath6kl_htc_pipe_conn_service

Fix the warning

drivers/net/wireless/ath/ath6kl/htc_pipe.c: In function
'ath6kl_htc_pipe_conn_service':
drivers/net/wireless/ath/ath6kl/htc_pipe.c:1293:26: warning: integer overflow
in expression [-Woverflow]

by giving a hint to compiler about unsigned nature of
HTC_CONN_FLGS_SET_RECV_ALLOC_MASK

Signed-off-by: Vladimir Murzin <murzin.v@gmail.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath6kl/htc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath6kl/htc.h b/drivers/net/wireless/ath/ath6kl/htc.h
index a2c8ff809793..14cab1403dd6 100644
--- a/drivers/net/wireless/ath/ath6kl/htc.h
+++ b/drivers/net/wireless/ath/ath6kl/htc.h
@@ -60,7 +60,7 @@
 /* disable credit flow control on a specific service */
 #define HTC_CONN_FLGS_DISABLE_CRED_FLOW_CTRL          (1 << 3)
 #define HTC_CONN_FLGS_SET_RECV_ALLOC_SHIFT    8
-#define HTC_CONN_FLGS_SET_RECV_ALLOC_MASK     0xFF00
+#define HTC_CONN_FLGS_SET_RECV_ALLOC_MASK     0xFF00U
 
 /* connect response status codes */
 #define HTC_SERVICE_SUCCESS      0
-- 
cgit 


From b905b5d4d93d0b88fcd1d3bcd76d238d9401bc31 Mon Sep 17 00:00:00 2001
From: Vasundhara Volam <vasundhara.volam@emulex.com>
Date: Tue, 1 Oct 2013 15:59:56 +0530
Subject: be2net: Call be_vf_setup() even when VFs are enbaled from previous
 load

Re-define the sriov_want() macro to check for number of VFs that need
to be enabled in the current load of the driver or the number of VFs that
still remain enabled from the previous load (attached VFs cannot be disabled.)

Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be.h      | 4 ++--
 drivers/net/ethernet/emulex/benet/be_main.c | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index 4a0d3b786288..4a540aff698c 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -470,8 +470,8 @@ struct be_adapter {
 
 #define be_physfn(adapter)		(!adapter->virtfn)
 #define	sriov_enabled(adapter)		(adapter->num_vfs > 0)
-#define sriov_want(adapter)             (be_max_vfs(adapter) && num_vfs && \
-					 be_physfn(adapter))
+#define sriov_want(adapter)             (be_physfn(adapter) &&	\
+					 (num_vfs || pci_num_vf(adapter->pdev)))
 #define for_all_vfs(adapter, vf_cfg, i)					\
 	for (i = 0, vf_cfg = &adapter->vf_cfg[i]; i < adapter->num_vfs;	\
 		i++, vf_cfg++)
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 100b528b9bd0..4cb2ac79bfe2 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -2948,12 +2948,12 @@ static void BEx_get_resources(struct be_adapter *adapter,
 	struct pci_dev *pdev = adapter->pdev;
 	bool use_sriov = false;
 
-	if (BE3_chip(adapter) && be_physfn(adapter)) {
+	if (BE3_chip(adapter) && sriov_want(adapter)) {
 		int max_vfs;
 
 		max_vfs = pci_sriov_get_totalvfs(pdev);
 		res->max_vfs = max_vfs > 0 ? min(MAX_VFS, max_vfs) : 0;
-		use_sriov = res->max_vfs && num_vfs;
+		use_sriov = res->max_vfs;
 	}
 
 	if (be_physfn(adapter))
@@ -3242,7 +3242,7 @@ static int be_setup(struct be_adapter *adapter)
 		be_cmd_set_flow_control(adapter, adapter->tx_fc,
 					adapter->rx_fc);
 
-	if (be_physfn(adapter) && num_vfs) {
+	if (sriov_want(adapter)) {
 		if (be_max_vfs(adapter))
 			be_vf_setup(adapter);
 		else
-- 
cgit 


From 81b0265531b2ff091fb91c0af9bc9675f84e6f56 Mon Sep 17 00:00:00 2001
From: Vasundhara Volam <vasundhara.volam@emulex.com>
Date: Tue, 1 Oct 2013 15:59:57 +0530
Subject: be2net: pass if_id for v1 and V2 versions of TX_CREATE cmd

It is a required field for all TX_CREATE cmd versions > 0.
Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be_cmds.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index 1ab5dab11eff..331dfdc7a4fb 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -1195,7 +1195,6 @@ int be_cmd_txq_create(struct be_adapter *adapter, struct be_tx_obj *txo)
 
 	if (lancer_chip(adapter)) {
 		req->hdr.version = 1;
-		req->if_id = cpu_to_le16(adapter->if_handle);
 	} else if (BEx_chip(adapter)) {
 		if (adapter->function_caps & BE_FUNCTION_CAPS_SUPER_NIC)
 			req->hdr.version = 2;
@@ -1203,6 +1202,8 @@ int be_cmd_txq_create(struct be_adapter *adapter, struct be_tx_obj *txo)
 		req->hdr.version = 2;
 	}
 
+	if (req->hdr.version > 0)
+		req->if_id = cpu_to_le16(adapter->if_handle);
 	req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size);
 	req->ulp_num = BE_ULP1_NUM;
 	req->type = BE_ETH_TX_RING_TYPE_STANDARD;
-- 
cgit 


From 30f3fe45493801c2db351153a4a1a15d05c0e9e2 Mon Sep 17 00:00:00 2001
From: Vasundhara Volam <vasundhara.volam@emulex.com>
Date: Tue, 1 Oct 2013 15:59:58 +0530
Subject: be2net: Create single TXQ on BE3-R 1G ports

On BE3-R 1G ports (identified by port numbers 2 and 3) the FW cannot properly
support multiple TXQs. This also makes the number of RX and TX queues symmetric
as only a single RXQ is available on 1G ports.

Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be_main.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 4cb2ac79bfe2..be129874c815 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -2967,8 +2967,9 @@ static void BEx_get_resources(struct be_adapter *adapter,
 		res->max_vlans = BE_NUM_VLANS_SUPPORTED;
 	res->max_mcast_mac = BE_MAX_MC;
 
+	/* For BE3 1Gb ports, F/W does not properly support multiple TXQs */
 	if (BE2_chip(adapter) || use_sriov || be_is_mc(adapter) ||
-	    !be_physfn(adapter))
+	    !be_physfn(adapter) || (adapter->port_num > 1))
 		res->max_tx_qs = 1;
 	else
 		res->max_tx_qs = BE3_MAX_TX_QS;
@@ -3010,14 +3011,6 @@ static int be_get_resources(struct be_adapter *adapter)
 		adapter->res = res;
 	}
 
-	/* For BE3 only check if FW suggests a different max-txqs value */
-	if (BE3_chip(adapter)) {
-		status = be_cmd_get_profile_config(adapter, &res, 0);
-		if (!status && res.max_tx_qs)
-			adapter->res.max_tx_qs =
-				min(adapter->res.max_tx_qs, res.max_tx_qs);
-	}
-
 	/* For Lancer, SH etc read per-function resource limits from FW.
 	 * GET_FUNC_CONFIG returns per function guaranteed limits.
 	 * GET_PROFILE_CONFIG returns PCI-E related limits PF-pool limits
-- 
cgit 


From 0599863d35410ea65ceadcca87497985b371039a Mon Sep 17 00:00:00 2001
From: Vasundhara Volam <vasundhara.volam@emulex.com>
Date: Tue, 1 Oct 2013 15:59:59 +0530
Subject: be2net: call ENABLE_VF cmd for Skyhawk-R too

This cmd needs to be sent to FW when enabling VFs (currently used only
for Lancer.) Also, avoid calling the cmd when driver loads and finds that
VFs are already enabled from a previous load.

Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be_cmds.c | 2 +-
 drivers/net/ethernet/emulex/benet/be_main.c | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index 331dfdc7a4fb..86105305d552 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -3511,7 +3511,7 @@ int be_cmd_enable_vf(struct be_adapter *adapter, u8 domain)
 	struct be_cmd_enable_disable_vf *req;
 	int status;
 
-	if (!lancer_chip(adapter))
+	if (BEx_chip(adapter))
 		return 0;
 
 	spin_lock_bh(&adapter->mcc_lock);
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index be129874c815..961e9f0500c5 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -2923,7 +2923,8 @@ static int be_vf_setup(struct be_adapter *adapter)
 			goto err;
 		vf_cfg->def_vid = def_vlan;
 
-		be_cmd_enable_vf(adapter, vf + 1);
+		if (!old_vfs)
+			be_cmd_enable_vf(adapter, vf + 1);
 	}
 
 	if (!old_vfs) {
-- 
cgit 


From 2632bafd74ae7d058ae52be80e6393139fd29f23 Mon Sep 17 00:00:00 2001
From: Sathya Perla <sathya.perla@emulex.com>
Date: Tue, 1 Oct 2013 16:00:00 +0530
Subject: be2net: fix adaptive interrupt coalescing

The current EQ delay calculation for AIC is based only on RX packet rate.
This fails to be effective when there's only TX and no RX.
This patch inclues:
- Calculating EQ-delay based on both RX and TX pps.
- Modifying EQ-delay of all EQs via one cmd, instead of issuing a separate
  cmd for each EQ.
- A new structure to store interrupt coalescing parameters, in a separate
  cache-line from the EQ-obj.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be.h         |  17 +++-
 drivers/net/ethernet/emulex/benet/be_cmds.c    |  17 ++--
 drivers/net/ethernet/emulex/benet/be_cmds.h    |  15 ++--
 drivers/net/ethernet/emulex/benet/be_ethtool.c |  29 ++++---
 drivers/net/ethernet/emulex/benet/be_main.c    | 110 +++++++++++++++----------
 5 files changed, 115 insertions(+), 73 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index 4a540aff698c..e7cbc56a0c8f 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -88,7 +88,7 @@ static inline char *nic_name(struct pci_dev *pdev)
 #define BE_MIN_MTU		256
 
 #define BE_NUM_VLANS_SUPPORTED	64
-#define BE_MAX_EQD		96u
+#define BE_MAX_EQD		128u
 #define	BE_MAX_TX_FRAG_COUNT	30
 
 #define EVNT_Q_LEN		1024
@@ -200,6 +200,17 @@ struct be_eq_obj {
 	struct be_adapter *adapter;
 } ____cacheline_aligned_in_smp;
 
+struct be_aic_obj {		/* Adaptive interrupt coalescing (AIC) info */
+	bool enable;
+	u32 min_eqd;		/* in usecs */
+	u32 max_eqd;		/* in usecs */
+	u32 prev_eqd;		/* in usecs */
+	u32 et_eqd;		/* configured val when aic is off */
+	ulong jiffies;
+	u64 rx_pkts_prev;	/* Used to calculate RX pps */
+	u64 tx_reqs_prev;	/* Used to calculate TX pps */
+};
+
 struct be_mcc_obj {
 	struct be_queue_info q;
 	struct be_queue_info cq;
@@ -238,15 +249,12 @@ struct be_rx_page_info {
 struct be_rx_stats {
 	u64 rx_bytes;
 	u64 rx_pkts;
-	u64 rx_pkts_prev;
-	ulong rx_jiffies;
 	u32 rx_drops_no_skbs;	/* skb allocation errors */
 	u32 rx_drops_no_frags;	/* HW has no fetched frags */
 	u32 rx_post_fail;	/* page post alloc failures */
 	u32 rx_compl;
 	u32 rx_mcast_pkts;
 	u32 rx_compl_err;	/* completions with err set */
-	u32 rx_pps;		/* pkts per second */
 	struct u64_stats_sync sync;
 };
 
@@ -403,6 +411,7 @@ struct be_adapter {
 	u32 big_page_size;	/* Compounded page size shared by rx wrbs */
 
 	struct be_drv_stats drv_stats;
+	struct be_aic_obj aic_obj[MAX_EVT_QS];
 	u16 vlans_added;
 	u8 vlan_tag[VLAN_N_VID];
 	u8 vlan_prio_bmap;	/* Available Priority BitMap */
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index 86105305d552..b28248770d85 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -1716,11 +1716,12 @@ err:
 /* set the EQ delay interval of an EQ to specified value
  * Uses async mcc
  */
-int be_cmd_modify_eqd(struct be_adapter *adapter, u32 eq_id, u32 eqd)
+int be_cmd_modify_eqd(struct be_adapter *adapter, struct be_set_eqd *set_eqd,
+		      int num)
 {
 	struct be_mcc_wrb *wrb;
 	struct be_cmd_req_modify_eq_delay *req;
-	int status = 0;
+	int status = 0, i;
 
 	spin_lock_bh(&adapter->mcc_lock);
 
@@ -1734,13 +1735,15 @@ int be_cmd_modify_eqd(struct be_adapter *adapter, u32 eq_id, u32 eqd)
 	be_wrb_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
 		OPCODE_COMMON_MODIFY_EQ_DELAY, sizeof(*req), wrb, NULL);
 
-	req->num_eq = cpu_to_le32(1);
-	req->delay[0].eq_id = cpu_to_le32(eq_id);
-	req->delay[0].phase = 0;
-	req->delay[0].delay_multiplier = cpu_to_le32(eqd);
+	req->num_eq = cpu_to_le32(num);
+	for (i = 0; i < num; i++) {
+		req->set_eqd[i].eq_id = cpu_to_le32(set_eqd[i].eq_id);
+		req->set_eqd[i].phase = 0;
+		req->set_eqd[i].delay_multiplier =
+				cpu_to_le32(set_eqd[i].delay_multiplier);
+	}
 
 	be_mcc_notify(adapter);
-
 err:
 	spin_unlock_bh(&adapter->mcc_lock);
 	return status;
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index 84f8c5243655..70c3017288d5 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -1055,14 +1055,16 @@ struct be_cmd_resp_get_flow_control {
 } __packed;
 
 /******************** Modify EQ Delay *******************/
+struct be_set_eqd {
+	u32 eq_id;
+	u32 phase;
+	u32 delay_multiplier;
+};
+
 struct be_cmd_req_modify_eq_delay {
 	struct be_cmd_req_hdr hdr;
 	u32 num_eq;
-	struct {
-		u32 eq_id;
-		u32 phase;
-		u32 delay_multiplier;
-	} delay[8];
+	struct be_set_eqd set_eqd[MAX_EVT_QS];
 } __packed;
 
 struct be_cmd_resp_modify_eq_delay {
@@ -1894,8 +1896,7 @@ int lancer_cmd_get_pport_stats(struct be_adapter *adapter,
 			       struct be_dma_mem *nonemb_cmd);
 int be_cmd_get_fw_ver(struct be_adapter *adapter, char *fw_ver,
 		      char *fw_on_flash);
-
-int be_cmd_modify_eqd(struct be_adapter *adapter, u32 eq_id, u32 eqd);
+int be_cmd_modify_eqd(struct be_adapter *adapter, struct be_set_eqd *, int num);
 int be_cmd_vlan_config(struct be_adapter *adapter, u32 if_id, u16 *vtag_array,
 		       u32 num, bool untagged, bool promiscuous);
 int be_cmd_rx_filter(struct be_adapter *adapter, u32 flags, u32 status);
diff --git a/drivers/net/ethernet/emulex/benet/be_ethtool.c b/drivers/net/ethernet/emulex/benet/be_ethtool.c
index b440a1fac77b..a08783c7456e 100644
--- a/drivers/net/ethernet/emulex/benet/be_ethtool.c
+++ b/drivers/net/ethernet/emulex/benet/be_ethtool.c
@@ -290,19 +290,19 @@ static int be_get_coalesce(struct net_device *netdev,
 			   struct ethtool_coalesce *et)
 {
 	struct be_adapter *adapter = netdev_priv(netdev);
-	struct be_eq_obj *eqo = &adapter->eq_obj[0];
+	struct be_aic_obj *aic = &adapter->aic_obj[0];
 
 
-	et->rx_coalesce_usecs = eqo->cur_eqd;
-	et->rx_coalesce_usecs_high = eqo->max_eqd;
-	et->rx_coalesce_usecs_low = eqo->min_eqd;
+	et->rx_coalesce_usecs = aic->prev_eqd;
+	et->rx_coalesce_usecs_high = aic->max_eqd;
+	et->rx_coalesce_usecs_low = aic->min_eqd;
 
-	et->tx_coalesce_usecs = eqo->cur_eqd;
-	et->tx_coalesce_usecs_high = eqo->max_eqd;
-	et->tx_coalesce_usecs_low = eqo->min_eqd;
+	et->tx_coalesce_usecs = aic->prev_eqd;
+	et->tx_coalesce_usecs_high = aic->max_eqd;
+	et->tx_coalesce_usecs_low = aic->min_eqd;
 
-	et->use_adaptive_rx_coalesce = eqo->enable_aic;
-	et->use_adaptive_tx_coalesce = eqo->enable_aic;
+	et->use_adaptive_rx_coalesce = aic->enable;
+	et->use_adaptive_tx_coalesce = aic->enable;
 
 	return 0;
 }
@@ -314,14 +314,17 @@ static int be_set_coalesce(struct net_device *netdev,
 			   struct ethtool_coalesce *et)
 {
 	struct be_adapter *adapter = netdev_priv(netdev);
+	struct be_aic_obj *aic = &adapter->aic_obj[0];
 	struct be_eq_obj *eqo;
 	int i;
 
 	for_all_evt_queues(adapter, eqo, i) {
-		eqo->enable_aic = et->use_adaptive_rx_coalesce;
-		eqo->max_eqd = min(et->rx_coalesce_usecs_high, BE_MAX_EQD);
-		eqo->min_eqd = min(et->rx_coalesce_usecs_low, eqo->max_eqd);
-		eqo->eqd = et->rx_coalesce_usecs;
+		aic->enable = et->use_adaptive_rx_coalesce;
+		aic->max_eqd = min(et->rx_coalesce_usecs_high, BE_MAX_EQD);
+		aic->min_eqd = min(et->rx_coalesce_usecs_low, aic->max_eqd);
+		aic->et_eqd = min(et->rx_coalesce_usecs, aic->max_eqd);
+		aic->et_eqd = max(aic->et_eqd, aic->min_eqd);
+		aic++;
 	}
 
 	return 0;
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 961e9f0500c5..6691d75b6cca 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -1261,53 +1261,79 @@ static int be_set_vf_tx_rate(struct net_device *netdev,
 	return status;
 }
 
-static void be_eqd_update(struct be_adapter *adapter, struct be_eq_obj *eqo)
+static void be_aic_update(struct be_aic_obj *aic, u64 rx_pkts, u64 tx_pkts,
+			  ulong now)
 {
-	struct be_rx_stats *stats = rx_stats(&adapter->rx_obj[eqo->idx]);
-	ulong now = jiffies;
-	ulong delta = now - stats->rx_jiffies;
-	u64 pkts;
-	unsigned int start, eqd;
+	aic->rx_pkts_prev = rx_pkts;
+	aic->tx_reqs_prev = tx_pkts;
+	aic->jiffies = now;
+}
 
-	if (!eqo->enable_aic) {
-		eqd = eqo->eqd;
-		goto modify_eqd;
-	}
+static void be_eqd_update(struct be_adapter *adapter)
+{
+	struct be_set_eqd set_eqd[MAX_EVT_QS];
+	int eqd, i, num = 0, start;
+	struct be_aic_obj *aic;
+	struct be_eq_obj *eqo;
+	struct be_rx_obj *rxo;
+	struct be_tx_obj *txo;
+	u64 rx_pkts, tx_pkts;
+	ulong now;
+	u32 pps, delta;
 
-	if (eqo->idx >= adapter->num_rx_qs)
-		return;
+	for_all_evt_queues(adapter, eqo, i) {
+		aic = &adapter->aic_obj[eqo->idx];
+		if (!aic->enable) {
+			if (aic->jiffies)
+				aic->jiffies = 0;
+			eqd = aic->et_eqd;
+			goto modify_eqd;
+		}
 
-	stats = rx_stats(&adapter->rx_obj[eqo->idx]);
+		rxo = &adapter->rx_obj[eqo->idx];
+		do {
+			start = u64_stats_fetch_begin_bh(&rxo->stats.sync);
+			rx_pkts = rxo->stats.rx_pkts;
+		} while (u64_stats_fetch_retry_bh(&rxo->stats.sync, start));
 
-	/* Wrapped around */
-	if (time_before(now, stats->rx_jiffies)) {
-		stats->rx_jiffies = now;
-		return;
-	}
+		txo = &adapter->tx_obj[eqo->idx];
+		do {
+			start = u64_stats_fetch_begin_bh(&txo->stats.sync);
+			tx_pkts = txo->stats.tx_reqs;
+		} while (u64_stats_fetch_retry_bh(&txo->stats.sync, start));
 
-	/* Update once a second */
-	if (delta < HZ)
-		return;
 
-	do {
-		start = u64_stats_fetch_begin_bh(&stats->sync);
-		pkts = stats->rx_pkts;
-	} while (u64_stats_fetch_retry_bh(&stats->sync, start));
-
-	stats->rx_pps = (unsigned long)(pkts - stats->rx_pkts_prev) / (delta / HZ);
-	stats->rx_pkts_prev = pkts;
-	stats->rx_jiffies = now;
-	eqd = (stats->rx_pps / 110000) << 3;
-	eqd = min(eqd, eqo->max_eqd);
-	eqd = max(eqd, eqo->min_eqd);
-	if (eqd < 10)
-		eqd = 0;
+		/* Skip, if wrapped around or first calculation */
+		now = jiffies;
+		if (!aic->jiffies || time_before(now, aic->jiffies) ||
+		    rx_pkts < aic->rx_pkts_prev ||
+		    tx_pkts < aic->tx_reqs_prev) {
+			be_aic_update(aic, rx_pkts, tx_pkts, now);
+			continue;
+		}
+
+		delta = jiffies_to_msecs(now - aic->jiffies);
+		pps = (((u32)(rx_pkts - aic->rx_pkts_prev) * 1000) / delta) +
+			(((u32)(tx_pkts - aic->tx_reqs_prev) * 1000) / delta);
+		eqd = (pps / 15000) << 2;
 
+		if (eqd < 8)
+			eqd = 0;
+		eqd = min_t(u32, eqd, aic->max_eqd);
+		eqd = max_t(u32, eqd, aic->min_eqd);
+
+		be_aic_update(aic, rx_pkts, tx_pkts, now);
 modify_eqd:
-	if (eqd != eqo->cur_eqd) {
-		be_cmd_modify_eqd(adapter, eqo->q.id, eqd);
-		eqo->cur_eqd = eqd;
+		if (eqd != aic->prev_eqd) {
+			set_eqd[num].delay_multiplier = (eqd * 65)/100;
+			set_eqd[num].eq_id = eqo->q.id;
+			aic->prev_eqd = eqd;
+			num++;
+		}
 	}
+
+	if (num)
+		be_cmd_modify_eqd(adapter, set_eqd, num);
 }
 
 static void be_rx_stats_update(struct be_rx_obj *rxo,
@@ -1924,6 +1950,7 @@ static int be_evt_queues_create(struct be_adapter *adapter)
 {
 	struct be_queue_info *eq;
 	struct be_eq_obj *eqo;
+	struct be_aic_obj *aic;
 	int i, rc;
 
 	adapter->num_evt_qs = min_t(u16, num_irqs(adapter),
@@ -1932,11 +1959,12 @@ static int be_evt_queues_create(struct be_adapter *adapter)
 	for_all_evt_queues(adapter, eqo, i) {
 		netif_napi_add(adapter->netdev, &eqo->napi, be_poll,
 			       BE_NAPI_WEIGHT);
+		aic = &adapter->aic_obj[i];
 		eqo->adapter = adapter;
 		eqo->tx_budget = BE_TX_BUDGET;
 		eqo->idx = i;
-		eqo->max_eqd = BE_MAX_EQD;
-		eqo->enable_aic = true;
+		aic->max_eqd = BE_MAX_EQD;
+		aic->enable = true;
 
 		eq = &eqo->q;
 		rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
@@ -4240,7 +4268,6 @@ static void be_worker(struct work_struct *work)
 	struct be_adapter *adapter =
 		container_of(work, struct be_adapter, work.work);
 	struct be_rx_obj *rxo;
-	struct be_eq_obj *eqo;
 	int i;
 
 	/* when interrupts are not yet enabled, just reap any pending
@@ -4271,8 +4298,7 @@ static void be_worker(struct work_struct *work)
 		}
 	}
 
-	for_all_evt_queues(adapter, eqo, i)
-		be_eqd_update(adapter, eqo);
+	be_eqd_update(adapter);
 
 reschedule:
 	adapter->work_counter++;
-- 
cgit 


From bc617526db53246648a6690645572829bcc21a12 Mon Sep 17 00:00:00 2001
From: Sathya Perla <sathya.perla@emulex.com>
Date: Tue, 1 Oct 2013 16:00:01 +0530
Subject: be2net: add a counter for pkts dropped in xmit path

In the xmit path, the driver may drop some pkts due to reasons such as
DMA mapping errors, out of memory conditions or to protect HW from
unrecoverable errors. Add a counter in TX-stats for such drops.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be.h         | 1 +
 drivers/net/ethernet/emulex/benet/be_ethtool.c | 4 +++-
 drivers/net/ethernet/emulex/benet/be_main.c    | 5 ++++-
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index e7cbc56a0c8f..21b064feaa4e 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -225,6 +225,7 @@ struct be_tx_stats {
 	u64 tx_compl;
 	ulong tx_jiffies;
 	u32 tx_stops;
+	u32 tx_drv_drops;	/* pkts dropped by driver */
 	struct u64_stats_sync sync;
 	struct u64_stats_sync sync_compl;
 };
diff --git a/drivers/net/ethernet/emulex/benet/be_ethtool.c b/drivers/net/ethernet/emulex/benet/be_ethtool.c
index a08783c7456e..3dcf817e756d 100644
--- a/drivers/net/ethernet/emulex/benet/be_ethtool.c
+++ b/drivers/net/ethernet/emulex/benet/be_ethtool.c
@@ -155,7 +155,9 @@ static const struct be_ethtool_stat et_tx_stats[] = {
 	/* Number of times the TX queue was stopped due to lack
 	 * of spaces in the TXQ.
 	 */
-	{DRVSTAT_TX_INFO(tx_stops)}
+	{DRVSTAT_TX_INFO(tx_stops)},
+	/* Pkts dropped in the driver's transmit path */
+	{DRVSTAT_TX_INFO(tx_drv_drops)}
 };
 #define ETHTOOL_TXSTATS_NUM (ARRAY_SIZE(et_tx_stats))
 
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 6691d75b6cca..0a168e3d47ab 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -935,8 +935,10 @@ static netdev_tx_t be_xmit(struct sk_buff *skb, struct net_device *netdev)
 	u32 start = txq->head;
 
 	skb = be_xmit_workarounds(adapter, skb, &skip_hw_vlan);
-	if (!skb)
+	if (!skb) {
+		tx_stats(txo)->tx_drv_drops++;
 		return NETDEV_TX_OK;
+	}
 
 	wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
 
@@ -965,6 +967,7 @@ static netdev_tx_t be_xmit(struct sk_buff *skb, struct net_device *netdev)
 		be_tx_stats_update(txo, wrb_cnt, copied, gso_segs, stopped);
 	} else {
 		txq->head = start;
+		tx_stats(txo)->tx_drv_drops++;
 		dev_kfree_skb_any(skb);
 	}
 	return NETDEV_TX_OK;
-- 
cgit 


From fa07f10d9dfc18c9aa285947c3a557e30f78c275 Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Tue, 1 Oct 2013 04:33:48 -0700
Subject: ixgbevf: do not print registers to dmesg in ixgbevf_get_regs

This patch removes the use of hw_dbg in ixgbevf when the ixgbe_get_regs function
is called from ethtool. This goes along side a patch to ethtool which enables
proper support for ixgbevf pretty-printing of registers.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/intel/ixgbevf/ethtool.c | 55 +---------------------------
 1 file changed, 2 insertions(+), 53 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ethtool.c b/drivers/net/ethernet/intel/ixgbevf/ethtool.c
index c9d0c12d6f04..84329b0d567a 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ethtool.c
@@ -140,58 +140,10 @@ static void ixgbevf_set_msglevel(struct net_device *netdev, u32 data)
 
 #define IXGBE_GET_STAT(_A_, _R_) (_A_->stats._R_)
 
-static char *ixgbevf_reg_names[] = {
-	"IXGBE_VFCTRL",
-	"IXGBE_VFSTATUS",
-	"IXGBE_VFLINKS",
-	"IXGBE_VFRXMEMWRAP",
-	"IXGBE_VFFRTIMER",
-	"IXGBE_VTEICR",
-	"IXGBE_VTEICS",
-	"IXGBE_VTEIMS",
-	"IXGBE_VTEIMC",
-	"IXGBE_VTEIAC",
-	"IXGBE_VTEIAM",
-	"IXGBE_VTEITR",
-	"IXGBE_VTIVAR",
-	"IXGBE_VTIVAR_MISC",
-	"IXGBE_VFRDBAL0",
-	"IXGBE_VFRDBAL1",
-	"IXGBE_VFRDBAH0",
-	"IXGBE_VFRDBAH1",
-	"IXGBE_VFRDLEN0",
-	"IXGBE_VFRDLEN1",
-	"IXGBE_VFRDH0",
-	"IXGBE_VFRDH1",
-	"IXGBE_VFRDT0",
-	"IXGBE_VFRDT1",
-	"IXGBE_VFRXDCTL0",
-	"IXGBE_VFRXDCTL1",
-	"IXGBE_VFSRRCTL0",
-	"IXGBE_VFSRRCTL1",
-	"IXGBE_VFPSRTYPE",
-	"IXGBE_VFTDBAL0",
-	"IXGBE_VFTDBAL1",
-	"IXGBE_VFTDBAH0",
-	"IXGBE_VFTDBAH1",
-	"IXGBE_VFTDLEN0",
-	"IXGBE_VFTDLEN1",
-	"IXGBE_VFTDH0",
-	"IXGBE_VFTDH1",
-	"IXGBE_VFTDT0",
-	"IXGBE_VFTDT1",
-	"IXGBE_VFTXDCTL0",
-	"IXGBE_VFTXDCTL1",
-	"IXGBE_VFTDWBAL0",
-	"IXGBE_VFTDWBAL1",
-	"IXGBE_VFTDWBAH0",
-	"IXGBE_VFTDWBAH1"
-};
-
-
 static int ixgbevf_get_regs_len(struct net_device *netdev)
 {
-	return (ARRAY_SIZE(ixgbevf_reg_names)) * sizeof(u32);
+#define IXGBE_REGS_LEN 45
+	return IXGBE_REGS_LEN * sizeof(u32);
 }
 
 static void ixgbevf_get_regs(struct net_device *netdev,
@@ -264,9 +216,6 @@ static void ixgbevf_get_regs(struct net_device *netdev,
 		regs_buff[41 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAL(i));
 	for (i = 0; i < 2; i++)
 		regs_buff[43 + i] = IXGBE_READ_REG(hw, IXGBE_VFTDWBAH(i));
-
-	for (i = 0; i < ARRAY_SIZE(ixgbevf_reg_names); i++)
-		hw_dbg(hw, "%s\t%8.8x\n", ixgbevf_reg_names[i], regs_buff[i]);
 }
 
 static void ixgbevf_get_drvinfo(struct net_device *netdev,
-- 
cgit 


From c7bb417dbb8888cfd20824d54f9af9c92b9ff43d Mon Sep 17 00:00:00 2001
From: Don Skidmore <donald.c.skidmore@intel.com>
Date: Tue, 1 Oct 2013 04:33:49 -0700
Subject: ixgbevf: cleanup redundant mailbox read failure check

Since we are already checking for read failure in check_link we don't need
to do it here. Instead just make sure the watchdog task gets scheduled, if
we are up, and it can be done there. This will better follow igbvf method
of handling a mailbox event and message timeout.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 29 ++---------------------
 1 file changed, 2 insertions(+), 27 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 59a62bbfb371..b9a78a2d486d 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -756,37 +756,12 @@ static void ixgbevf_set_itr(struct ixgbevf_q_vector *q_vector)
 static irqreturn_t ixgbevf_msix_other(int irq, void *data)
 {
 	struct ixgbevf_adapter *adapter = data;
-	struct pci_dev *pdev = adapter->pdev;
 	struct ixgbe_hw *hw = &adapter->hw;
-	u32 msg;
-	bool got_ack = false;
 
 	hw->mac.get_link_status = 1;
-	if (!hw->mbx.ops.check_for_ack(hw))
-		got_ack = true;
-
-	if (!hw->mbx.ops.check_for_msg(hw)) {
-		hw->mbx.ops.read(hw, &msg, 1);
 
-		if ((msg & IXGBE_MBVFICR_VFREQ_MASK) == IXGBE_PF_CONTROL_MSG) {
-			mod_timer(&adapter->watchdog_timer,
-				  round_jiffies(jiffies + 1));
-			adapter->link_up = false;
-		}
-
-		if (msg & IXGBE_VT_MSGTYPE_NACK)
-			dev_info(&pdev->dev,
-				 "Last Request of type %2.2x to PF Nacked\n",
-				 msg & 0xFF);
-		hw->mbx.v2p_mailbox |= IXGBE_VFMAILBOX_PFSTS;
-	}
-
-	/* checking for the ack clears the PFACK bit.  Place
-	 * it back in the v2p_mailbox cache so that anyone
-	 * polling for an ack will not miss it
-	 */
-	if (got_ack)
-		hw->mbx.v2p_mailbox |= IXGBE_VFMAILBOX_PFACK;
+	if (!test_bit(__IXGBEVF_DOWN, &adapter->state))
+		mod_timer(&adapter->watchdog_timer, jiffies);
 
 	IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, adapter->eims_other);
 
-- 
cgit 


From 858c3dda5ea3519a3799a147904ae1d6e6c4e7c1 Mon Sep 17 00:00:00 2001
From: Don Skidmore <donald.c.skidmore@intel.com>
Date: Tue, 1 Oct 2013 04:33:50 -0700
Subject: ixgbevf: add wait for Rx queue disable

New function was added to wait for Rx queues to be disabled before
disabling NAPI. This function also allows us to  modify
ixgbevf_rx_desc_queue_enable() to better match ixgbe.  I also cleaned up
some msleep calls to usleep_range while I was in this code anyway.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 61 ++++++++++++++++-------
 1 file changed, 44 insertions(+), 17 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index b9a78a2d486d..e3493b0e5348 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -1302,27 +1302,51 @@ static void ixgbevf_configure(struct ixgbevf_adapter *adapter)
 	}
 }
 
-#define IXGBE_MAX_RX_DESC_POLL 10
-static inline void ixgbevf_rx_desc_queue_enable(struct ixgbevf_adapter *adapter,
-						int rxr)
+#define IXGBEVF_MAX_RX_DESC_POLL 10
+static void ixgbevf_rx_desc_queue_enable(struct ixgbevf_adapter *adapter,
+					 int rxr)
 {
 	struct ixgbe_hw *hw = &adapter->hw;
+	int wait_loop = IXGBEVF_MAX_RX_DESC_POLL;
+	u32 rxdctl;
 	int j = adapter->rx_ring[rxr].reg_idx;
-	int k;
 
-	for (k = 0; k < IXGBE_MAX_RX_DESC_POLL; k++) {
-		if (IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(j)) & IXGBE_RXDCTL_ENABLE)
-			break;
-		else
-			msleep(1);
-	}
-	if (k >= IXGBE_MAX_RX_DESC_POLL) {
-		hw_dbg(hw, "RXDCTL.ENABLE on Rx queue %d "
-		       "not set within the polling period\n", rxr);
-	}
+	do {
+		usleep_range(1000, 2000);
+		rxdctl = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(j));
+	} while (--wait_loop && !(rxdctl & IXGBE_RXDCTL_ENABLE));
+
+	if (!wait_loop)
+		hw_dbg(hw, "RXDCTL.ENABLE queue %d not set while polling\n",
+		       rxr);
+
+	ixgbevf_release_rx_desc(&adapter->hw, &adapter->rx_ring[rxr],
+				(adapter->rx_ring[rxr].count - 1));
+}
 
-	ixgbevf_release_rx_desc(hw, &adapter->rx_ring[rxr],
-				adapter->rx_ring[rxr].count - 1);
+static void ixgbevf_disable_rx_queue(struct ixgbevf_adapter *adapter,
+				     struct ixgbevf_ring *ring)
+{
+	struct ixgbe_hw *hw = &adapter->hw;
+	int wait_loop = IXGBEVF_MAX_RX_DESC_POLL;
+	u32 rxdctl;
+	u8 reg_idx = ring->reg_idx;
+
+	rxdctl = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(reg_idx));
+	rxdctl &= ~IXGBE_RXDCTL_ENABLE;
+
+	/* write value back with RXDCTL.ENABLE bit cleared */
+	IXGBE_WRITE_REG(hw, IXGBE_VFRXDCTL(reg_idx), rxdctl);
+
+	/* the hardware may take up to 100us to really disable the rx queue */
+	do {
+		udelay(10);
+		rxdctl = IXGBE_READ_REG(hw, IXGBE_VFRXDCTL(reg_idx));
+	} while (--wait_loop && (rxdctl & IXGBE_RXDCTL_ENABLE));
+
+	if (!wait_loop)
+		hw_dbg(hw, "RXDCTL.ENABLE queue %d not cleared while polling\n",
+		       reg_idx);
 }
 
 static void ixgbevf_save_reset_stats(struct ixgbevf_adapter *adapter)
@@ -1654,7 +1678,10 @@ void ixgbevf_down(struct ixgbevf_adapter *adapter)
 
 	/* signal that we are down to the interrupt handler */
 	set_bit(__IXGBEVF_DOWN, &adapter->state);
-	/* disable receives */
+
+	/* disable all enabled rx queues */
+	for (i = 0; i < adapter->num_rx_queues; i++)
+		ixgbevf_disable_rx_queue(adapter, &adapter->rx_ring[i]);
 
 	netif_tx_disable(netdev);
 
-- 
cgit 


From 798e381a0c387dcbcb014e07c0e6683cf2d2dc22 Mon Sep 17 00:00:00 2001
From: Don Skidmore <donald.c.skidmore@intel.com>
Date: Tue, 1 Oct 2013 04:33:51 -0700
Subject: ixgbevf: move API neg to reset path

After this patch the API negotiation will occur in the reset path.  So now
the PF will be informed of the API version earlier.  This will also require
the mailbox lock to be initialize sooner as well.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Stephen Ko <stephen.s.ko@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index e3493b0e5348..ce27d62f9c8e 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -1544,8 +1544,6 @@ void ixgbevf_up(struct ixgbevf_adapter *adapter)
 {
 	struct ixgbe_hw *hw = &adapter->hw;
 
-	ixgbevf_negotiate_api(adapter);
-
 	ixgbevf_reset_queues(adapter);
 
 	ixgbevf_configure(adapter);
@@ -1735,10 +1733,12 @@ void ixgbevf_reset(struct ixgbevf_adapter *adapter)
 	struct ixgbe_hw *hw = &adapter->hw;
 	struct net_device *netdev = adapter->netdev;
 
-	if (hw->mac.ops.reset_hw(hw))
+	if (hw->mac.ops.reset_hw(hw)) {
 		hw_dbg(hw, "PF still resetting\n");
-	else
+	} else {
 		hw->mac.ops.init_hw(hw);
+		ixgbevf_negotiate_api(adapter);
+	}
 
 	if (is_valid_ether_addr(adapter->hw.mac.addr)) {
 		memcpy(netdev->dev_addr, adapter->hw.mac.addr,
@@ -2074,6 +2074,9 @@ static int ixgbevf_sw_init(struct ixgbevf_adapter *adapter)
 	hw->mac.max_tx_queues = 2;
 	hw->mac.max_rx_queues = 2;
 
+	/* lock to protect mailbox accesses */
+	spin_lock_init(&adapter->mbx_lock);
+
 	err = hw->mac.ops.reset_hw(hw);
 	if (err) {
 		dev_info(&pdev->dev,
@@ -2084,6 +2087,7 @@ static int ixgbevf_sw_init(struct ixgbevf_adapter *adapter)
 			pr_err("init_shared_code failed: %d\n", err);
 			goto out;
 		}
+		ixgbevf_negotiate_api(adapter);
 		err = hw->mac.ops.get_mac_addr(hw, hw->mac.addr);
 		if (err)
 			dev_info(&pdev->dev, "Error reading MAC address\n");
@@ -2099,9 +2103,6 @@ static int ixgbevf_sw_init(struct ixgbevf_adapter *adapter)
 		memcpy(hw->mac.addr, netdev->dev_addr, netdev->addr_len);
 	}
 
-	/* lock to protect mailbox accesses */
-	spin_lock_init(&adapter->mbx_lock);
-
 	/* Enable dynamic interrupt throttling rates */
 	adapter->rx_itr_setting = 1;
 	adapter->tx_itr_setting = 1;
@@ -2622,8 +2623,6 @@ static int ixgbevf_open(struct net_device *netdev)
 		}
 	}
 
-	ixgbevf_negotiate_api(adapter);
-
 	/* setup queue reg_idx and Rx queue count */
 	err = ixgbevf_setup_queues(adapter);
 	if (err)
@@ -3218,6 +3217,8 @@ static int ixgbevf_resume(struct pci_dev *pdev)
 	}
 	pci_set_master(pdev);
 
+	ixgbevf_reset(adapter);
+
 	rtnl_lock();
 	err = ixgbevf_init_interrupt_scheme(adapter);
 	rtnl_unlock();
@@ -3226,8 +3227,6 @@ static int ixgbevf_resume(struct pci_dev *pdev)
 		return err;
 	}
 
-	ixgbevf_reset(adapter);
-
 	if (netif_running(netdev)) {
 		err = ixgbevf_open(netdev);
 		if (err)
-- 
cgit 


From 51e409f106cb890b11fe78a5c2e3cab36b5947ac Mon Sep 17 00:00:00 2001
From: Leonardo Potenza <leonardo.potenza@intel.com>
Date: Tue, 1 Oct 2013 04:33:52 -0700
Subject: ixgbe: ethtool DCB registers dump for 82599 and x540

Added support for DCB registers dump using ethtool -d option both for
82599 and x540 ethernet controllers

Signed-off-by: Leonardo Potenza <leonardo.potenza@intel.com>
Signed-off-by: Maryam Tahhan <maryam.tahhan@intel.com>
Acked-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Tested-by: Jack Morgan <jack.morgan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 75 +++++++++++++++++++-----
 drivers/net/ethernet/intel/ixgbe/ixgbe_type.h    |  5 ++
 2 files changed, 65 insertions(+), 15 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
index e8649abf97c0..27c2032effc4 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -442,7 +442,7 @@ static void ixgbe_set_msglevel(struct net_device *netdev, u32 data)
 
 static int ixgbe_get_regs_len(struct net_device *netdev)
 {
-#define IXGBE_REGS_LEN  1129
+#define IXGBE_REGS_LEN  1139
 	return IXGBE_REGS_LEN * sizeof(u32);
 }
 
@@ -602,22 +602,53 @@ static void ixgbe_get_regs(struct net_device *netdev,
 	regs_buff[828] = IXGBE_READ_REG(hw, IXGBE_FHFT(0));
 
 	/* DCB */
-	regs_buff[829] = IXGBE_READ_REG(hw, IXGBE_RMCS);
-	regs_buff[830] = IXGBE_READ_REG(hw, IXGBE_DPMCS);
-	regs_buff[831] = IXGBE_READ_REG(hw, IXGBE_PDPMCS);
-	regs_buff[832] = IXGBE_READ_REG(hw, IXGBE_RUPPBMR);
-	for (i = 0; i < 8; i++)
-		regs_buff[833 + i] = IXGBE_READ_REG(hw, IXGBE_RT2CR(i));
-	for (i = 0; i < 8; i++)
-		regs_buff[841 + i] = IXGBE_READ_REG(hw, IXGBE_RT2SR(i));
-	for (i = 0; i < 8; i++)
-		regs_buff[849 + i] = IXGBE_READ_REG(hw, IXGBE_TDTQ2TCCR(i));
-	for (i = 0; i < 8; i++)
-		regs_buff[857 + i] = IXGBE_READ_REG(hw, IXGBE_TDTQ2TCSR(i));
+	regs_buff[829] = IXGBE_READ_REG(hw, IXGBE_RMCS);   /* same as FCCFG  */
+	regs_buff[831] = IXGBE_READ_REG(hw, IXGBE_PDPMCS); /* same as RTTPCS */
+
+	switch (hw->mac.type) {
+	case ixgbe_mac_82598EB:
+		regs_buff[830] = IXGBE_READ_REG(hw, IXGBE_DPMCS);
+		regs_buff[832] = IXGBE_READ_REG(hw, IXGBE_RUPPBMR);
+		for (i = 0; i < 8; i++)
+			regs_buff[833 + i] =
+				IXGBE_READ_REG(hw, IXGBE_RT2CR(i));
+		for (i = 0; i < 8; i++)
+			regs_buff[841 + i] =
+				IXGBE_READ_REG(hw, IXGBE_RT2SR(i));
+		for (i = 0; i < 8; i++)
+			regs_buff[849 + i] =
+				IXGBE_READ_REG(hw, IXGBE_TDTQ2TCCR(i));
+		for (i = 0; i < 8; i++)
+			regs_buff[857 + i] =
+				IXGBE_READ_REG(hw, IXGBE_TDTQ2TCSR(i));
+		break;
+	case ixgbe_mac_82599EB:
+	case ixgbe_mac_X540:
+		regs_buff[830] = IXGBE_READ_REG(hw, IXGBE_RTTDCS);
+		regs_buff[832] = IXGBE_READ_REG(hw, IXGBE_RTRPCS);
+		for (i = 0; i < 8; i++)
+			regs_buff[833 + i] =
+				IXGBE_READ_REG(hw, IXGBE_RTRPT4C(i));
+		for (i = 0; i < 8; i++)
+			regs_buff[841 + i] =
+				IXGBE_READ_REG(hw, IXGBE_RTRPT4S(i));
+		for (i = 0; i < 8; i++)
+			regs_buff[849 + i] =
+				IXGBE_READ_REG(hw, IXGBE_RTTDT2C(i));
+		for (i = 0; i < 8; i++)
+			regs_buff[857 + i] =
+				IXGBE_READ_REG(hw, IXGBE_RTTDT2S(i));
+		break;
+	default:
+		break;
+	}
+
 	for (i = 0; i < 8; i++)
-		regs_buff[865 + i] = IXGBE_READ_REG(hw, IXGBE_TDPT2TCCR(i));
+		regs_buff[865 + i] =
+		IXGBE_READ_REG(hw, IXGBE_TDPT2TCCR(i)); /* same as RTTPT2C */
 	for (i = 0; i < 8; i++)
-		regs_buff[873 + i] = IXGBE_READ_REG(hw, IXGBE_TDPT2TCSR(i));
+		regs_buff[873 + i] =
+		IXGBE_READ_REG(hw, IXGBE_TDPT2TCSR(i)); /* same as RTTPT2S */
 
 	/* Statistics */
 	regs_buff[881] = IXGBE_GET_STAT(adapter, crcerrs);
@@ -757,6 +788,20 @@ static void ixgbe_get_regs(struct net_device *netdev,
 
 	/* 82599 X540 specific registers  */
 	regs_buff[1128] = IXGBE_READ_REG(hw, IXGBE_MFLCN);
+
+	/* 82599 X540 specific DCB registers  */
+	regs_buff[1129] = IXGBE_READ_REG(hw, IXGBE_RTRUP2TC);
+	regs_buff[1130] = IXGBE_READ_REG(hw, IXGBE_RTTUP2TC);
+	for (i = 0; i < 4; i++)
+		regs_buff[1131 + i] = IXGBE_READ_REG(hw, IXGBE_TXLLQ(i));
+	regs_buff[1135] = IXGBE_READ_REG(hw, IXGBE_RTTBCNRM);
+					/* same as RTTQCNRM */
+	regs_buff[1136] = IXGBE_READ_REG(hw, IXGBE_RTTBCNRD);
+					/* same as RTTQCNRR */
+
+	/* X540 specific DCB registers  */
+	regs_buff[1137] = IXGBE_READ_REG(hw, IXGBE_RTTQCNCR);
+	regs_buff[1138] = IXGBE_READ_REG(hw, IXGBE_RTTQCNTG);
 }
 
 static int ixgbe_get_eeprom_len(struct net_device *netdev)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
index 10775cb9b6d8..7c19e969576f 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
@@ -561,6 +561,10 @@ struct ixgbe_thermal_sensor_data {
 #define IXGBE_RTTDQSEL    0x04904
 #define IXGBE_RTTDT1C     0x04908
 #define IXGBE_RTTDT1S     0x0490C
+#define IXGBE_RTTQCNCR    0x08B00
+#define IXGBE_RTTQCNTG    0x04A90
+#define IXGBE_RTTBCNRD    0x0498C
+#define IXGBE_RTTQCNRR    0x0498C
 #define IXGBE_RTTDTECC    0x04990
 #define IXGBE_RTTDTECC_NO_BCN   0x00000100
 #define IXGBE_RTTBCNRC    0x04984
@@ -570,6 +574,7 @@ struct ixgbe_thermal_sensor_data {
 #define IXGBE_RTTBCNRC_RF_INT_MASK	\
 	(IXGBE_RTTBCNRC_RF_DEC_MASK << IXGBE_RTTBCNRC_RF_INT_SHIFT)
 #define IXGBE_RTTBCNRM    0x04980
+#define IXGBE_RTTQCNRM    0x04980
 
 /* FCoE DMA Context Registers */
 #define IXGBE_FCPTRL    0x02410 /* FC User Desc. PTR Low */
-- 
cgit 


From b00074846732985972741baa49ec677f42e886a2 Mon Sep 17 00:00:00 2001
From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Date: Tue, 1 Oct 2013 04:33:53 -0700
Subject: ixgbe: Cleanup the use of tabs and spaces

Cleans up the whitespace issues noticed during code review where
a mix of tabs and spaces were used for indentation.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h  | 40 +++++++++++++--------------
 drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c | 12 ++++----
 2 files changed, 26 insertions(+), 26 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
index 24af12e3719e..aae900a256da 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
@@ -57,28 +57,28 @@
 #define IXGBE_SFF_QSFP_DEVICE_TECH	0x93
 
 /* Bitmasks */
-#define IXGBE_SFF_DA_PASSIVE_CABLE           0x4
-#define IXGBE_SFF_DA_ACTIVE_CABLE            0x8
-#define IXGBE_SFF_DA_SPEC_ACTIVE_LIMITING    0x4
-#define IXGBE_SFF_1GBASESX_CAPABLE           0x1
-#define IXGBE_SFF_1GBASELX_CAPABLE           0x2
-#define IXGBE_SFF_1GBASET_CAPABLE            0x8
-#define IXGBE_SFF_10GBASESR_CAPABLE          0x10
-#define IXGBE_SFF_10GBASELR_CAPABLE          0x20
-#define IXGBE_SFF_SOFT_RS_SELECT_MASK	0x8
-#define IXGBE_SFF_SOFT_RS_SELECT_10G	0x8
-#define IXGBE_SFF_SOFT_RS_SELECT_1G	0x0
-#define IXGBE_SFF_ADDRESSING_MODE	     0x4
-#define IXGBE_SFF_QSFP_DA_ACTIVE_CABLE       0x1
-#define IXGBE_SFF_QSFP_DA_PASSIVE_CABLE      0x8
+#define IXGBE_SFF_DA_PASSIVE_CABLE		0x4
+#define IXGBE_SFF_DA_ACTIVE_CABLE		0x8
+#define IXGBE_SFF_DA_SPEC_ACTIVE_LIMITING	0x4
+#define IXGBE_SFF_1GBASESX_CAPABLE		0x1
+#define IXGBE_SFF_1GBASELX_CAPABLE		0x2
+#define IXGBE_SFF_1GBASET_CAPABLE		0x8
+#define IXGBE_SFF_10GBASESR_CAPABLE		0x10
+#define IXGBE_SFF_10GBASELR_CAPABLE		0x20
+#define IXGBE_SFF_SOFT_RS_SELECT_MASK		0x8
+#define IXGBE_SFF_SOFT_RS_SELECT_10G		0x8
+#define IXGBE_SFF_SOFT_RS_SELECT_1G		0x0
+#define IXGBE_SFF_ADDRESSING_MODE		0x4
+#define IXGBE_SFF_QSFP_DA_ACTIVE_CABLE		0x1
+#define IXGBE_SFF_QSFP_DA_PASSIVE_CABLE		0x8
 #define IXGBE_SFF_QSFP_CONNECTOR_NOT_SEPARABLE	0x23
 #define IXGBE_SFF_QSFP_TRANSMITER_850NM_VCSEL	0x0
-#define IXGBE_I2C_EEPROM_READ_MASK           0x100
-#define IXGBE_I2C_EEPROM_STATUS_MASK         0x3
-#define IXGBE_I2C_EEPROM_STATUS_NO_OPERATION 0x0
-#define IXGBE_I2C_EEPROM_STATUS_PASS         0x1
-#define IXGBE_I2C_EEPROM_STATUS_FAIL         0x2
-#define IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS  0x3
+#define IXGBE_I2C_EEPROM_READ_MASK		0x100
+#define IXGBE_I2C_EEPROM_STATUS_MASK		0x3
+#define IXGBE_I2C_EEPROM_STATUS_NO_OPERATION	0x0
+#define IXGBE_I2C_EEPROM_STATUS_PASS		0x1
+#define IXGBE_I2C_EEPROM_STATUS_FAIL		0x2
+#define IXGBE_I2C_EEPROM_STATUS_IN_PROGRESS	0x3
 
 /* Flow control defines */
 #define IXGBE_TAF_SYM_PAUSE                  0x400
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
index 389324f5929a..24b80a6cfca4 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x540.c
@@ -32,12 +32,12 @@
 #include "ixgbe.h"
 #include "ixgbe_phy.h"
 
-#define IXGBE_X540_MAX_TX_QUEUES 128
-#define IXGBE_X540_MAX_RX_QUEUES 128
-#define IXGBE_X540_RAR_ENTRIES   128
-#define IXGBE_X540_MC_TBL_SIZE   128
-#define IXGBE_X540_VFT_TBL_SIZE  128
-#define IXGBE_X540_RX_PB_SIZE	 384
+#define IXGBE_X540_MAX_TX_QUEUES	128
+#define IXGBE_X540_MAX_RX_QUEUES	128
+#define IXGBE_X540_RAR_ENTRIES		128
+#define IXGBE_X540_MC_TBL_SIZE		128
+#define IXGBE_X540_VFT_TBL_SIZE		128
+#define IXGBE_X540_RX_PB_SIZE		384
 
 static s32 ixgbe_update_flash_X540(struct ixgbe_hw *hw);
 static s32 ixgbe_poll_flash_update_done_X540(struct ixgbe_hw *hw);
-- 
cgit 


From b4640030ec987ec29f5f74792c8f5cc8068d1829 Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Tue, 1 Oct 2013 04:33:54 -0700
Subject: ixgbe: remove marketing names from busy poll code

This patch renames the LL_EXTENDED_STATS and some of the functions required to
implement busy polling in the ixgbe driver, in order to remove the marketing
"low latency" blurb which hides what the code actually does.

This furthers work which was requested by Linus Torvalds when the initial busy
poll code was included in the kernel. The code in the ixgbe driver itself was
never properly renamed to reflect the change to busy polling as the title.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe.h         | 14 ++++++------
 drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 28 ++++++++++++------------
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c    |  4 ++--
 3 files changed, 23 insertions(+), 23 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index 3637841daea4..dc1588ee264a 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -55,7 +55,7 @@
 #include <net/busy_poll.h>
 
 #ifdef CONFIG_NET_RX_BUSY_POLL
-#define LL_EXTENDED_STATS
+#define BP_EXTENDED_STATS
 #endif
 /* common prefix used by pr_<> macros */
 #undef pr_fmt
@@ -187,11 +187,11 @@ struct ixgbe_rx_buffer {
 struct ixgbe_queue_stats {
 	u64 packets;
 	u64 bytes;
-#ifdef LL_EXTENDED_STATS
+#ifdef BP_EXTENDED_STATS
 	u64 yields;
 	u64 misses;
 	u64 cleaned;
-#endif  /* LL_EXTENDED_STATS */
+#endif  /* BP_EXTENDED_STATS */
 };
 
 struct ixgbe_tx_queue_stats {
@@ -399,7 +399,7 @@ static inline bool ixgbe_qv_lock_napi(struct ixgbe_q_vector *q_vector)
 		WARN_ON(q_vector->state & IXGBE_QV_STATE_NAPI);
 		q_vector->state |= IXGBE_QV_STATE_NAPI_YIELD;
 		rc = false;
-#ifdef LL_EXTENDED_STATS
+#ifdef BP_EXTENDED_STATS
 		q_vector->tx.ring->stats.yields++;
 #endif
 	} else
@@ -432,7 +432,7 @@ static inline bool ixgbe_qv_lock_poll(struct ixgbe_q_vector *q_vector)
 	if ((q_vector->state & IXGBE_QV_LOCKED)) {
 		q_vector->state |= IXGBE_QV_STATE_POLL_YIELD;
 		rc = false;
-#ifdef LL_EXTENDED_STATS
+#ifdef BP_EXTENDED_STATS
 		q_vector->rx.ring->stats.yields++;
 #endif
 	} else
@@ -457,7 +457,7 @@ static inline bool ixgbe_qv_unlock_poll(struct ixgbe_q_vector *q_vector)
 }
 
 /* true if a socket is polling, even if it did not get the lock */
-static inline bool ixgbe_qv_ll_polling(struct ixgbe_q_vector *q_vector)
+static inline bool ixgbe_qv_busy_polling(struct ixgbe_q_vector *q_vector)
 {
 	WARN_ON(!(q_vector->state & IXGBE_QV_LOCKED));
 	return q_vector->state & IXGBE_QV_USER_PEND;
@@ -487,7 +487,7 @@ static inline bool ixgbe_qv_unlock_poll(struct ixgbe_q_vector *q_vector)
 	return false;
 }
 
-static inline bool ixgbe_qv_ll_polling(struct ixgbe_q_vector *q_vector)
+static inline bool ixgbe_qv_busy_polling(struct ixgbe_q_vector *q_vector)
 {
 	return false;
 }
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
index 27c2032effc4..90aac31b3551 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -1117,7 +1117,7 @@ static void ixgbe_get_ethtool_stats(struct net_device *netdev,
 			data[i] = 0;
 			data[i+1] = 0;
 			i += 2;
-#ifdef LL_EXTENDED_STATS
+#ifdef BP_EXTENDED_STATS
 			data[i] = 0;
 			data[i+1] = 0;
 			data[i+2] = 0;
@@ -1132,7 +1132,7 @@ static void ixgbe_get_ethtool_stats(struct net_device *netdev,
 			data[i+1] = ring->stats.bytes;
 		} while (u64_stats_fetch_retry_bh(&ring->syncp, start));
 		i += 2;
-#ifdef LL_EXTENDED_STATS
+#ifdef BP_EXTENDED_STATS
 		data[i] = ring->stats.yields;
 		data[i+1] = ring->stats.misses;
 		data[i+2] = ring->stats.cleaned;
@@ -1145,7 +1145,7 @@ static void ixgbe_get_ethtool_stats(struct net_device *netdev,
 			data[i] = 0;
 			data[i+1] = 0;
 			i += 2;
-#ifdef LL_EXTENDED_STATS
+#ifdef BP_EXTENDED_STATS
 			data[i] = 0;
 			data[i+1] = 0;
 			data[i+2] = 0;
@@ -1160,7 +1160,7 @@ static void ixgbe_get_ethtool_stats(struct net_device *netdev,
 			data[i+1] = ring->stats.bytes;
 		} while (u64_stats_fetch_retry_bh(&ring->syncp, start));
 		i += 2;
-#ifdef LL_EXTENDED_STATS
+#ifdef BP_EXTENDED_STATS
 		data[i] = ring->stats.yields;
 		data[i+1] = ring->stats.misses;
 		data[i+2] = ring->stats.cleaned;
@@ -1202,28 +1202,28 @@ static void ixgbe_get_strings(struct net_device *netdev, u32 stringset,
 			p += ETH_GSTRING_LEN;
 			sprintf(p, "tx_queue_%u_bytes", i);
 			p += ETH_GSTRING_LEN;
-#ifdef LL_EXTENDED_STATS
-			sprintf(p, "tx_queue_%u_ll_napi_yield", i);
+#ifdef BP_EXTENDED_STATS
+			sprintf(p, "tx_queue_%u_bp_napi_yield", i);
 			p += ETH_GSTRING_LEN;
-			sprintf(p, "tx_queue_%u_ll_misses", i);
+			sprintf(p, "tx_queue_%u_bp_misses", i);
 			p += ETH_GSTRING_LEN;
-			sprintf(p, "tx_queue_%u_ll_cleaned", i);
+			sprintf(p, "tx_queue_%u_bp_cleaned", i);
 			p += ETH_GSTRING_LEN;
-#endif /* LL_EXTENDED_STATS */
+#endif /* BP_EXTENDED_STATS */
 		}
 		for (i = 0; i < IXGBE_NUM_RX_QUEUES; i++) {
 			sprintf(p, "rx_queue_%u_packets", i);
 			p += ETH_GSTRING_LEN;
 			sprintf(p, "rx_queue_%u_bytes", i);
 			p += ETH_GSTRING_LEN;
-#ifdef LL_EXTENDED_STATS
-			sprintf(p, "rx_queue_%u_ll_poll_yield", i);
+#ifdef BP_EXTENDED_STATS
+			sprintf(p, "rx_queue_%u_bp_poll_yield", i);
 			p += ETH_GSTRING_LEN;
-			sprintf(p, "rx_queue_%u_ll_misses", i);
+			sprintf(p, "rx_queue_%u_bp_misses", i);
 			p += ETH_GSTRING_LEN;
-			sprintf(p, "rx_queue_%u_ll_cleaned", i);
+			sprintf(p, "rx_queue_%u_bp_cleaned", i);
 			p += ETH_GSTRING_LEN;
-#endif /* LL_EXTENDED_STATS */
+#endif /* BP_EXTENDED_STATS */
 		}
 		for (i = 0; i < IXGBE_MAX_PACKET_BUFFERS; i++) {
 			sprintf(p, "tx_pb_%u_pxon", i);
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 0ade0cd5ef53..43b777aad288 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -1585,7 +1585,7 @@ static void ixgbe_rx_skb(struct ixgbe_q_vector *q_vector,
 {
 	struct ixgbe_adapter *adapter = q_vector->adapter;
 
-	if (ixgbe_qv_ll_polling(q_vector))
+	if (ixgbe_qv_busy_polling(q_vector))
 		netif_receive_skb(skb);
 	else if (!(adapter->flags & IXGBE_FLAG_IN_NETPOLL))
 		napi_gro_receive(&q_vector->napi, skb);
@@ -2097,7 +2097,7 @@ static int ixgbe_low_latency_recv(struct napi_struct *napi)
 
 	ixgbe_for_each_ring(ring, q_vector->rx) {
 		found = ixgbe_clean_rx_irq(q_vector, ring, 4);
-#ifdef LL_EXTENDED_STATS
+#ifdef BP_EXTENDED_STATS
 		if (found)
 			ring->stats.cleaned += found;
 		else
-- 
cgit 


From a4e979a27db3eb77e286dbe484e96c0c9c986e83 Mon Sep 17 00:00:00 2001
From: "Fujinaka, Todd" <todd.fujinaka@intel.com>
Date: Tue, 1 Oct 2013 04:33:55 -0700
Subject: igb: Add ethtool offline tests for i354

Add the ethtool offline tests for i354 devices.

Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/intel/igb/igb_ethtool.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index 48cbc833b051..e4c77c041d37 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -1656,7 +1656,8 @@ static int igb_setup_loopback_test(struct igb_adapter *adapter)
 		if ((hw->device_id == E1000_DEV_ID_DH89XXCC_SGMII) ||
 		(hw->device_id == E1000_DEV_ID_DH89XXCC_SERDES) ||
 		(hw->device_id == E1000_DEV_ID_DH89XXCC_BACKPLANE) ||
-		(hw->device_id == E1000_DEV_ID_DH89XXCC_SFP)) {
+		(hw->device_id == E1000_DEV_ID_DH89XXCC_SFP) ||
+		(hw->device_id == E1000_DEV_ID_I354_SGMII)) {
 
 			/* Enable DH89xxCC MPHY for near end loopback */
 			reg = rd32(E1000_MPHY_ADDR_CTL);
@@ -1722,7 +1723,8 @@ static void igb_loopback_cleanup(struct igb_adapter *adapter)
 	if ((hw->device_id == E1000_DEV_ID_DH89XXCC_SGMII) ||
 	(hw->device_id == E1000_DEV_ID_DH89XXCC_SERDES) ||
 	(hw->device_id == E1000_DEV_ID_DH89XXCC_BACKPLANE) ||
-	(hw->device_id == E1000_DEV_ID_DH89XXCC_SFP)) {
+	(hw->device_id == E1000_DEV_ID_DH89XXCC_SFP) ||
+	(hw->device_id == E1000_DEV_ID_I354_SGMII)) {
 		u32 reg;
 
 		/* Disable near end loopback on DH89xxCC */
-- 
cgit 


From 907b7835799f741bf80e18b635555dc332ca9863 Mon Sep 17 00:00:00 2001
From: Laura Mihaela Vasilescu <laura.vasilescu@rosedu.org>
Date: Tue, 1 Oct 2013 04:33:56 -0700
Subject: igb: Add ethtool support to configure number of channels

This patch adds the ethtool callbacks necessary to configure the
number of RSS queues.

The maximum number of queues is in accordance with the datasheets.

Signed-off-by: Laura Mihaela Vasilescu <laura.vasilescu@rosedu.org>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/intel/igb/igb.h         |  1 +
 drivers/net/ethernet/intel/igb/igb_ethtool.c | 84 ++++++++++++++++++++++++++++
 drivers/net/ethernet/intel/igb/igb_main.c    | 22 ++++++++
 3 files changed, 107 insertions(+)

diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h
index cdaa2bcefc4c..5e9ed89403aa 100644
--- a/drivers/net/ethernet/intel/igb/igb.h
+++ b/drivers/net/ethernet/intel/igb/igb.h
@@ -487,6 +487,7 @@ int igb_up(struct igb_adapter *);
 void igb_down(struct igb_adapter *);
 void igb_reinit_locked(struct igb_adapter *);
 void igb_reset(struct igb_adapter *);
+int igb_reinit_queues(struct igb_adapter *);
 void igb_write_rss_indir_tbl(struct igb_adapter *);
 int igb_set_spd_dplx(struct igb_adapter *, u32, u8);
 int igb_setup_tx_resources(struct igb_ring *);
diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index e4c77c041d37..c8f65e5e6d10 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -2874,6 +2874,88 @@ static int igb_set_rxfh_indir(struct net_device *netdev, const u32 *indir)
 	return 0;
 }
 
+static unsigned int igb_max_channels(struct igb_adapter *adapter)
+{
+	struct e1000_hw *hw = &adapter->hw;
+	unsigned int max_combined = 0;
+
+	switch (hw->mac.type) {
+	case e1000_i211:
+		max_combined = IGB_MAX_RX_QUEUES_I211;
+		break;
+	case e1000_82575:
+	case e1000_i210:
+		max_combined = IGB_MAX_RX_QUEUES_82575;
+		break;
+	case e1000_i350:
+		if (!!adapter->vfs_allocated_count) {
+			max_combined = 1;
+			break;
+		}
+		/* fall through */
+	case e1000_82576:
+		if (!!adapter->vfs_allocated_count) {
+			max_combined = 2;
+			break;
+		}
+		/* fall through */
+	case e1000_82580:
+	case e1000_i354:
+	default:
+		max_combined = IGB_MAX_RX_QUEUES;
+		break;
+	}
+
+	return max_combined;
+}
+
+static void igb_get_channels(struct net_device *netdev,
+			     struct ethtool_channels *ch)
+{
+	struct igb_adapter *adapter = netdev_priv(netdev);
+
+	/* Report maximum channels */
+	ch->max_combined = igb_max_channels(adapter);
+
+	/* Report info for other vector */
+	if (adapter->msix_entries) {
+		ch->max_other = NON_Q_VECTORS;
+		ch->other_count = NON_Q_VECTORS;
+	}
+
+	ch->combined_count = adapter->rss_queues;
+}
+
+static int igb_set_channels(struct net_device *netdev,
+			    struct ethtool_channels *ch)
+{
+	struct igb_adapter *adapter = netdev_priv(netdev);
+	unsigned int count = ch->combined_count;
+
+	/* Verify they are not requesting separate vectors */
+	if (!count || ch->rx_count || ch->tx_count)
+		return -EINVAL;
+
+	/* Verify other_count is valid and has not been changed */
+	if (ch->other_count != NON_Q_VECTORS)
+		return -EINVAL;
+
+	/* Verify the number of channels doesn't exceed hw limits */
+	if (count > igb_max_channels(adapter))
+		return -EINVAL;
+
+	if (count != adapter->rss_queues) {
+		adapter->rss_queues = count;
+
+		/* Hardware has to reinitialize queues and interrupts to
+		 * match the new configuration.
+		 */
+		return igb_reinit_queues(adapter);
+	}
+
+	return 0;
+}
+
 static const struct ethtool_ops igb_ethtool_ops = {
 	.get_settings		= igb_get_settings,
 	.set_settings		= igb_set_settings,
@@ -2910,6 +2992,8 @@ static const struct ethtool_ops igb_ethtool_ops = {
 	.get_rxfh_indir_size	= igb_get_rxfh_indir_size,
 	.get_rxfh_indir		= igb_get_rxfh_indir,
 	.set_rxfh_indir		= igb_set_rxfh_indir,
+	.get_channels		= igb_get_channels,
+	.set_channels		= igb_set_channels,
 	.begin			= igb_ethtool_begin,
 	.complete		= igb_ethtool_complete,
 };
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 8cf44f2a8ccd..a56266eacc64 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -7838,4 +7838,26 @@ s32 igb_write_i2c_byte(struct e1000_hw *hw, u8 byte_offset,
 		return E1000_SUCCESS;
 
 }
+
+int igb_reinit_queues(struct igb_adapter *adapter)
+{
+	struct net_device *netdev = adapter->netdev;
+	struct pci_dev *pdev = adapter->pdev;
+	int err = 0;
+
+	if (netif_running(netdev))
+		igb_close(netdev);
+
+	igb_clear_interrupt_scheme(adapter);
+
+	if (igb_init_interrupt_scheme(adapter, true)) {
+		dev_err(&pdev->dev, "Unable to allocate memory for queues\n");
+		return -ENOMEM;
+	}
+
+	if (netif_running(netdev))
+		err = igb_open(netdev);
+
+	return err;
+}
 /* igb_main.c */
-- 
cgit 


From 0799a3e808e5543235bcdfe9d1fa1572e0e86ab5 Mon Sep 17 00:00:00 2001
From: Jie Liu <jeff.liu@oracle.com>
Date: Sun, 29 Sep 2013 18:56:04 +0800
Subject: xfs: get rid of count from xfs_iomap_write_allocate()

Get rid of function variable count from xfs_iomap_write_allocate() as
it is unused.

Additionally, checkpatch warn me of the following for this change:
WARNING: extern prototypes should be avoided in .h files
+extern int xfs_iomap_write_allocate(struct xfs_inode *, xfs_off_t,

So this patch also remove all extern function prototypes at xfs_iomap.h
to suppress it to make this code style in consistent manner in this file.

Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_aops.c  | 2 +-
 fs/xfs/xfs_iomap.c | 1 -
 fs/xfs/xfs_iomap.h | 8 ++++----
 3 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index e51e581454e9..f3f95f094af8 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -333,7 +333,7 @@ xfs_map_blocks(
 
 	if (type == XFS_IO_DELALLOC &&
 	    (!nimaps || isnullstartblock(imap->br_startblock))) {
-		error = xfs_iomap_write_allocate(ip, offset, count, imap);
+		error = xfs_iomap_write_allocate(ip, offset, imap);
 		if (!error)
 			trace_xfs_map_blocks_alloc(ip, offset, count, type, imap);
 		return -XFS_ERROR(error);
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 8d4d49b6fbf3..521fdf2ac6da 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -655,7 +655,6 @@ int
 xfs_iomap_write_allocate(
 	xfs_inode_t	*ip,
 	xfs_off_t	offset,
-	size_t		count,
 	xfs_bmbt_irec_t *imap)
 {
 	xfs_mount_t	*mp = ip->i_mount;
diff --git a/fs/xfs/xfs_iomap.h b/fs/xfs/xfs_iomap.h
index 80615760959a..411fbb8919ef 100644
--- a/fs/xfs/xfs_iomap.h
+++ b/fs/xfs/xfs_iomap.h
@@ -21,12 +21,12 @@
 struct xfs_inode;
 struct xfs_bmbt_irec;
 
-extern int xfs_iomap_write_direct(struct xfs_inode *, xfs_off_t, size_t,
+int xfs_iomap_write_direct(struct xfs_inode *, xfs_off_t, size_t,
 			struct xfs_bmbt_irec *, int);
-extern int xfs_iomap_write_delay(struct xfs_inode *, xfs_off_t, size_t,
+int xfs_iomap_write_delay(struct xfs_inode *, xfs_off_t, size_t,
 			struct xfs_bmbt_irec *);
-extern int xfs_iomap_write_allocate(struct xfs_inode *, xfs_off_t, size_t,
+int xfs_iomap_write_allocate(struct xfs_inode *, xfs_off_t,
 			struct xfs_bmbt_irec *);
-extern int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, size_t);
+int xfs_iomap_write_unwritten(struct xfs_inode *, xfs_off_t, size_t);
 
 #endif /* __XFS_IOMAP_H__*/
-- 
cgit 


From 476b9547e872c709c07a45bd47301ce7236f3dc1 Mon Sep 17 00:00:00 2001
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: Tue, 1 Oct 2013 17:22:00 +0100
Subject: HID RTC: Open sensor hub open close

Open sensor hub when module is loaded and close when module is removed.
This helps saving power by opening HID transport only when there is an
user.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/rtc/rtc-hid-sensor-time.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-hid-sensor-time.c b/drivers/rtc/rtc-hid-sensor-time.c
index 4e2a81854f51..45560ffb038d 100644
--- a/drivers/rtc/rtc-hid-sensor-time.c
+++ b/drivers/rtc/rtc-hid-sensor-time.c
@@ -275,6 +275,12 @@ static int hid_time_probe(struct platform_device *pdev)
 		return ret;
 	}
 
+	ret = sensor_hub_device_open(hsdev);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to open sensor hub device!\n");
+		goto err_open;
+	}
+
 	time_state->rtc = devm_rtc_device_register(&pdev->dev,
 					"hid-sensor-time", &hid_time_rtc_ops,
 					THIS_MODULE);
@@ -282,17 +288,24 @@ static int hid_time_probe(struct platform_device *pdev)
 	if (IS_ERR_OR_NULL(time_state->rtc)) {
 		ret = time_state->rtc ? PTR_ERR(time_state->rtc) : -ENODEV;
 		time_state->rtc = NULL;
-		sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_TIME);
 		dev_err(&pdev->dev, "rtc device register failed!\n");
+		goto err_rtc;
 	}
 
 	return ret;
+
+err_rtc:
+	sensor_hub_device_close(hsdev);
+err_open:
+	sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_TIME);
+	return ret;
 }
 
 static int hid_time_remove(struct platform_device *pdev)
 {
 	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
 
+	sensor_hub_device_close(hsdev);
 	sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_TIME);
 
 	return 0;
-- 
cgit 


From 34a5eeb202eb43f36dd39a287669e0b686ddf728 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Tue, 26 Feb 2013 16:16:53 -0600
Subject: cpuidle: calxeda: add cpu_pm_enter/exit calls

Wnen powergating the core, we need to call cpu pm notifiers to save VFP
state (!SMP only) and resetting the breakpoint h/w.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-pm@vger.kernel.org
---
 drivers/cpuidle/cpuidle-calxeda.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/cpuidle/cpuidle-calxeda.c b/drivers/cpuidle/cpuidle-calxeda.c
index 346058479572..bed707ab6d6e 100644
--- a/drivers/cpuidle/cpuidle-calxeda.c
+++ b/drivers/cpuidle/cpuidle-calxeda.c
@@ -21,6 +21,7 @@
  */
 
 #include <linux/cpuidle.h>
+#include <linux/cpu_pm.h>
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/of.h>
@@ -66,8 +67,11 @@ static int calxeda_pwrdown_idle(struct cpuidle_device *dev,
 				struct cpuidle_driver *drv,
 				int index)
 {
+	cpu_pm_enter();
 	highbank_set_cpu_jump(smp_processor_id(), cpu_resume);
 	cpu_suspend(0, calxeda_idle_finish);
+	cpu_pm_exit();
+
 	return index;
 }
 
-- 
cgit 


From 60a66e370007e8535b7a561353b07b37deaf35ba Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Fri, 27 Sep 2013 12:47:45 +0200
Subject: ARM: highbank: cpuidle: convert to platform driver

As the ux500 and the kirkwood driver, make the calxeda driver a platform driver

[Compiled only]

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 arch/arm/mach-highbank/highbank.c |  8 ++++++++
 drivers/cpuidle/cpuidle-calxeda.c | 18 ++++++++++++------
 2 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c
index 8e63ccdb0de3..a78ed62d6542 100644
--- a/arch/arm/mach-highbank/highbank.c
+++ b/arch/arm/mach-highbank/highbank.c
@@ -25,6 +25,7 @@
 #include <linux/of_address.h>
 #include <linux/amba/bus.h>
 #include <linux/clk-provider.h>
+#include <linux/platform_device.h>
 
 #include <asm/cacheflush.h>
 #include <asm/cputype.h>
@@ -153,6 +154,10 @@ static struct notifier_block highbank_platform_nb = {
 	.notifier_call = highbank_platform_notifier,
 };
 
+static struct platform_device highbank_cpuidle_device = {
+	.name = "cpuidle-calxeda",
+};
+
 static void __init highbank_init(void)
 {
 	pm_power_off = highbank_power_off;
@@ -162,6 +167,9 @@ static void __init highbank_init(void)
 	bus_register_notifier(&amba_bustype, &highbank_amba_nb);
 
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+
+	if (of_machine_is_compatible("calxeda,highbank"))
+		platform_device_register(&highbank_cpuidle_device);
 }
 
 static const char *highbank_match[] __initconst = {
diff --git a/drivers/cpuidle/cpuidle-calxeda.c b/drivers/cpuidle/cpuidle-calxeda.c
index bed707ab6d6e..6d49527d4a0c 100644
--- a/drivers/cpuidle/cpuidle-calxeda.c
+++ b/drivers/cpuidle/cpuidle-calxeda.c
@@ -24,10 +24,10 @@
 #include <linux/cpu_pm.h>
 #include <linux/init.h>
 #include <linux/io.h>
-#include <linux/of.h>
 #include <linux/time.h>
 #include <linux/delay.h>
 #include <linux/suspend.h>
+#include <linux/platform_device.h>
 #include <asm/cpuidle.h>
 #include <asm/proc-fns.h>
 #include <asm/smp_scu.h>
@@ -92,11 +92,17 @@ static struct cpuidle_driver calxeda_idle_driver = {
 	.state_count = 2,
 };
 
-static int __init calxeda_cpuidle_init(void)
+static int __init calxeda_cpuidle_probe(struct platform_device *pdev)
 {
-	if (!of_machine_is_compatible("calxeda,highbank"))
-		return -ENODEV;
-
 	return cpuidle_register(&calxeda_idle_driver, NULL);
 }
-module_init(calxeda_cpuidle_init);
+
+static struct platform_driver calxeda_cpuidle_plat_driver = {
+        .driver = {
+                .name = "cpuidle-calxeda",
+                .owner = THIS_MODULE,
+        },
+        .probe = calxeda_cpuidle_probe,
+};
+
+module_platform_driver(calxeda_cpuidle_plat_driver);
-- 
cgit 


From a410146c3ea5cf82a52f00814c0a4142ea9768ba Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Tue, 26 Feb 2013 16:05:46 -0600
Subject: cpuidle: calxeda: add support to use PSCI calls

This updates the Calxeda cpuidle driver to use PSCI calls to powergate
cores. This also enables cpuidle for the ECX-2000.

This could possibly become a generic PSCI driver, but there are no other
PSCI users in the kernel other than mach-virt.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-pm@vger.kernel.org
---
 arch/arm/mach-highbank/highbank.c |  2 +-
 drivers/cpuidle/Kconfig.arm       |  2 +-
 drivers/cpuidle/cpuidle-calxeda.c | 39 ++++++---------------------------------
 3 files changed, 8 insertions(+), 35 deletions(-)

diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c
index a78ed62d6542..53d05bc904f9 100644
--- a/arch/arm/mach-highbank/highbank.c
+++ b/arch/arm/mach-highbank/highbank.c
@@ -168,7 +168,7 @@ static void __init highbank_init(void)
 
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 
-	if (of_machine_is_compatible("calxeda,highbank"))
+	if (psci_ops.cpu_suspend)
 		platform_device_register(&highbank_cpuidle_device);
 }
 
diff --git a/drivers/cpuidle/Kconfig.arm b/drivers/cpuidle/Kconfig.arm
index 8e3660322308..d6f57d5d9631 100644
--- a/drivers/cpuidle/Kconfig.arm
+++ b/drivers/cpuidle/Kconfig.arm
@@ -4,7 +4,7 @@
 
 config ARM_HIGHBANK_CPUIDLE
 	bool "CPU Idle Driver for Calxeda processors"
-	depends on ARCH_HIGHBANK
+	depends on ARM_PSCI
 	select ARM_CPU_SUSPEND
 	help
 	  Select this to enable cpuidle on Calxeda processors.
diff --git a/drivers/cpuidle/cpuidle-calxeda.c b/drivers/cpuidle/cpuidle-calxeda.c
index 6d49527d4a0c..36795639df0d 100644
--- a/drivers/cpuidle/cpuidle-calxeda.c
+++ b/drivers/cpuidle/cpuidle-calxeda.c
@@ -23,44 +23,18 @@
 #include <linux/cpuidle.h>
 #include <linux/cpu_pm.h>
 #include <linux/init.h>
-#include <linux/io.h>
-#include <linux/time.h>
-#include <linux/delay.h>
-#include <linux/suspend.h>
+#include <linux/mm.h>
 #include <linux/platform_device.h>
 #include <asm/cpuidle.h>
-#include <asm/proc-fns.h>
-#include <asm/smp_scu.h>
 #include <asm/suspend.h>
-#include <asm/cacheflush.h>
-#include <asm/cp15.h>
-
-extern void highbank_set_cpu_jump(int cpu, void *jump_addr);
-extern void __iomem *scu_base_addr;
-
-static noinline void calxeda_idle_restore(void)
-{
-	set_cr(get_cr() | CR_C);
-	set_auxcr(get_auxcr() | 0x40);
-	scu_power_mode(scu_base_addr, SCU_PM_NORMAL);
-}
+#include <asm/psci.h>
 
 static int calxeda_idle_finish(unsigned long val)
 {
-	/* Already flushed cache, but do it again as the outer cache functions
-	 * dirty the cache with spinlocks */
-	flush_cache_all();
-
-	set_auxcr(get_auxcr() & ~0x40);
-	set_cr(get_cr() & ~CR_C);
-
-	scu_power_mode(scu_base_addr, SCU_PM_DORMANT);
-
-	cpu_do_idle();
-
-	/* Restore things if we didn't enter power-gating */
-	calxeda_idle_restore();
-	return 1;
+	const struct psci_power_state ps = {
+		.type = PSCI_POWER_STATE_TYPE_POWER_DOWN,
+	};
+	return psci_ops.cpu_suspend(ps, __pa(cpu_resume));
 }
 
 static int calxeda_pwrdown_idle(struct cpuidle_device *dev,
@@ -68,7 +42,6 @@ static int calxeda_pwrdown_idle(struct cpuidle_device *dev,
 				int index)
 {
 	cpu_pm_enter();
-	highbank_set_cpu_jump(smp_processor_id(), cpu_resume);
 	cpu_suspend(0, calxeda_idle_finish);
 	cpu_pm_exit();
 
-- 
cgit 


From 97fc4de3d93fea934b0ec8332465b9f1899a9adb Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Tue, 14 May 2013 20:51:38 -0500
Subject: ARM: PSCI: remove unnecessary include of arm-gic.h

Now that gic_secondary_init is no longer needed to be called by SMP init
functions, the header is not needed.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
---
 arch/arm/kernel/psci_smp.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/kernel/psci_smp.c b/arch/arm/kernel/psci_smp.c
index 70ded3fb42d9..570a48cc3d64 100644
--- a/arch/arm/kernel/psci_smp.c
+++ b/arch/arm/kernel/psci_smp.c
@@ -14,7 +14,6 @@
  */
 
 #include <linux/init.h>
-#include <linux/irqchip/arm-gic.h>
 #include <linux/smp.h>
 #include <linux/of.h>
 
-- 
cgit 


From dd68eb02e4598d81e9e42400ccbd2cc42f012bfa Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Thu, 26 Sep 2013 20:02:51 -0500
Subject: ARM: highbank: adapt to use ARM PSCI calls

This adapts highbank to use psci for smp_ops and the cpu_suspend function
for suspend/resume.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 arch/arm/mach-highbank/Kconfig    |  1 +
 arch/arm/mach-highbank/Makefile   |  2 --
 arch/arm/mach-highbank/core.h     |  4 ---
 arch/arm/mach-highbank/highbank.c | 16 +--------
 arch/arm/mach-highbank/hotplug.c  | 37 ---------------------
 arch/arm/mach-highbank/platsmp.c  | 68 ---------------------------------------
 arch/arm/mach-highbank/pm.c       | 27 ++++++----------
 7 files changed, 11 insertions(+), 144 deletions(-)
 delete mode 100644 arch/arm/mach-highbank/hotplug.c
 delete mode 100644 arch/arm/mach-highbank/platsmp.c

diff --git a/arch/arm/mach-highbank/Kconfig b/arch/arm/mach-highbank/Kconfig
index 8e8437dea3ce..965623de354f 100644
--- a/arch/arm/mach-highbank/Kconfig
+++ b/arch/arm/mach-highbank/Kconfig
@@ -10,6 +10,7 @@ config ARCH_HIGHBANK
 	select ARM_ERRATA_775420
 	select ARM_ERRATA_798181
 	select ARM_GIC
+	select ARM_PSCI
 	select ARM_TIMER_SP804
 	select CACHE_L2X0
 	select CLKDEV_LOOKUP
diff --git a/arch/arm/mach-highbank/Makefile b/arch/arm/mach-highbank/Makefile
index 8a1ef576d79f..55840f414d3e 100644
--- a/arch/arm/mach-highbank/Makefile
+++ b/arch/arm/mach-highbank/Makefile
@@ -3,6 +3,4 @@ obj-y					:= highbank.o system.o smc.o
 plus_sec := $(call as-instr,.arch_extension sec,+sec)
 AFLAGS_smc.o				:=-Wa,-march=armv7-a$(plus_sec)
 
-obj-$(CONFIG_SMP)			+= platsmp.o
-obj-$(CONFIG_HOTPLUG_CPU)		+= hotplug.o
 obj-$(CONFIG_PM_SLEEP)			+= pm.o
diff --git a/arch/arm/mach-highbank/core.h b/arch/arm/mach-highbank/core.h
index aea1ec5ab6f8..7ec5edcd1336 100644
--- a/arch/arm/mach-highbank/core.h
+++ b/arch/arm/mach-highbank/core.h
@@ -3,7 +3,6 @@
 
 #include <linux/reboot.h>
 
-extern void highbank_set_cpu_jump(int cpu, void *jump_addr);
 extern void highbank_restart(enum reboot_mode, const char *);
 extern void __iomem *scu_base_addr;
 
@@ -14,8 +13,5 @@ static inline void highbank_pm_init(void) {}
 #endif
 
 extern void highbank_smc1(int fn, int arg);
-extern void highbank_cpu_die(unsigned int cpu);
-
-extern struct smp_operations highbank_smp_ops;
 
 #endif
diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c
index 53d05bc904f9..0c49beb37cee 100644
--- a/arch/arm/mach-highbank/highbank.c
+++ b/arch/arm/mach-highbank/highbank.c
@@ -27,9 +27,7 @@
 #include <linux/clk-provider.h>
 #include <linux/platform_device.h>
 
-#include <asm/cacheflush.h>
-#include <asm/cputype.h>
-#include <asm/smp_plat.h>
+#include <asm/psci.h>
 #include <asm/hardware/cache-l2x0.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -50,17 +48,6 @@ static void __init highbank_scu_map_io(void)
 	scu_base_addr = ioremap(base, SZ_4K);
 }
 
-#define HB_JUMP_TABLE_PHYS(cpu)		(0x40 + (0x10 * (cpu)))
-#define HB_JUMP_TABLE_VIRT(cpu)		phys_to_virt(HB_JUMP_TABLE_PHYS(cpu))
-
-void highbank_set_cpu_jump(int cpu, void *jump_addr)
-{
-	cpu = MPIDR_AFFINITY_LEVEL(cpu_logical_map(cpu), 0);
-	writel(virt_to_phys(jump_addr), HB_JUMP_TABLE_VIRT(cpu));
-	__cpuc_flush_dcache_area(HB_JUMP_TABLE_VIRT(cpu), 16);
-	outer_clean_range(HB_JUMP_TABLE_PHYS(cpu),
-			  HB_JUMP_TABLE_PHYS(cpu) + 15);
-}
 
 static void highbank_l2x0_disable(void)
 {
@@ -182,7 +169,6 @@ DT_MACHINE_START(HIGHBANK, "Highbank")
 #if defined(CONFIG_ZONE_DMA) && defined(CONFIG_ARM_LPAE)
 	.dma_zone_size	= (4ULL * SZ_1G),
 #endif
-	.smp		= smp_ops(highbank_smp_ops),
 	.init_irq	= highbank_init_irq,
 	.init_time	= highbank_timer_init,
 	.init_machine	= highbank_init,
diff --git a/arch/arm/mach-highbank/hotplug.c b/arch/arm/mach-highbank/hotplug.c
deleted file mode 100644
index a019e4e86e51..000000000000
--- a/arch/arm/mach-highbank/hotplug.c
+++ /dev/null
@@ -1,37 +0,0 @@
-/*
- * Copyright 2011 Calxeda, Inc.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-#include <linux/kernel.h>
-#include <asm/cacheflush.h>
-
-#include "core.h"
-#include "sysregs.h"
-
-extern void secondary_startup(void);
-
-/*
- * platform-specific code to shutdown a CPU
- *
- */
-void __ref highbank_cpu_die(unsigned int cpu)
-{
-	highbank_set_cpu_jump(cpu, phys_to_virt(0));
-
-	flush_cache_louis();
-	highbank_set_core_pwr();
-
-	while (1)
-		cpu_do_idle();
-}
diff --git a/arch/arm/mach-highbank/platsmp.c b/arch/arm/mach-highbank/platsmp.c
deleted file mode 100644
index 32d75cf55cbc..000000000000
--- a/arch/arm/mach-highbank/platsmp.c
+++ /dev/null
@@ -1,68 +0,0 @@
-/*
- * Copyright 2010-2011 Calxeda, Inc.
- * Based on platsmp.c, Copyright (C) 2002 ARM Ltd.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/io.h>
-
-#include <asm/smp_scu.h>
-
-#include "core.h"
-
-extern void secondary_startup(void);
-
-static int highbank_boot_secondary(unsigned int cpu, struct task_struct *idle)
-{
-	highbank_set_cpu_jump(cpu, secondary_startup);
-	arch_send_wakeup_ipi_mask(cpumask_of(cpu));
-	return 0;
-}
-
-/*
- * Initialise the CPU possible map early - this describes the CPUs
- * which may be present or become present in the system.
- */
-static void __init highbank_smp_init_cpus(void)
-{
-	unsigned int i, ncores = 4;
-
-	/* sanity check */
-	if (ncores > NR_CPUS) {
-		printk(KERN_WARNING
-		       "highbank: no. of cores (%d) greater than configured "
-		       "maximum of %d - clipping\n",
-		       ncores, NR_CPUS);
-		ncores = NR_CPUS;
-	}
-
-	for (i = 0; i < ncores; i++)
-		set_cpu_possible(i, true);
-}
-
-static void __init highbank_smp_prepare_cpus(unsigned int max_cpus)
-{
-	if (scu_base_addr)
-		scu_enable(scu_base_addr);
-}
-
-struct smp_operations highbank_smp_ops __initdata = {
-	.smp_init_cpus		= highbank_smp_init_cpus,
-	.smp_prepare_cpus	= highbank_smp_prepare_cpus,
-	.smp_boot_secondary	= highbank_boot_secondary,
-#ifdef CONFIG_HOTPLUG_CPU
-	.cpu_die		= highbank_cpu_die,
-#endif
-};
diff --git a/arch/arm/mach-highbank/pm.c b/arch/arm/mach-highbank/pm.c
index 04eddb4f4380..7f2bd85eb935 100644
--- a/arch/arm/mach-highbank/pm.c
+++ b/arch/arm/mach-highbank/pm.c
@@ -16,27 +16,19 @@
 
 #include <linux/cpu_pm.h>
 #include <linux/init.h>
-#include <linux/io.h>
 #include <linux/suspend.h>
 
-#include <asm/cacheflush.h>
-#include <asm/proc-fns.h>
 #include <asm/suspend.h>
-
-#include "core.h"
-#include "sysregs.h"
+#include <asm/psci.h>
 
 static int highbank_suspend_finish(unsigned long val)
 {
-	outer_flush_all();
-	outer_disable();
-
-	highbank_set_pwr_suspend();
-
-	cpu_do_idle();
+	const struct psci_power_state ps = {
+		.type = PSCI_POWER_STATE_TYPE_POWER_DOWN,
+		.affinity_level = 1,
+	};
 
-	highbank_clear_pwr_request();
-	return 0;
+	return psci_ops.cpu_suspend(ps, __pa(cpu_resume));
 }
 
 static int highbank_pm_enter(suspend_state_t state)
@@ -44,15 +36,11 @@ static int highbank_pm_enter(suspend_state_t state)
 	cpu_pm_enter();
 	cpu_cluster_pm_enter();
 
-	highbank_set_cpu_jump(0, cpu_resume);
 	cpu_suspend(0, highbank_suspend_finish);
 
 	cpu_cluster_pm_exit();
 	cpu_pm_exit();
 
-	highbank_smc1(0x102, 0x1);
-	if (scu_base_addr)
-		scu_enable(scu_base_addr);
 	return 0;
 }
 
@@ -63,5 +51,8 @@ static const struct platform_suspend_ops highbank_pm_ops = {
 
 void __init highbank_pm_init(void)
 {
+	if (!psci_ops.cpu_suspend)
+		return;
+
 	suspend_set_ops(&highbank_pm_ops);
 }
-- 
cgit 


From 78bbca1a54bd05f7c7d38a306073a3ee7f866e51 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Thu, 26 Sep 2013 19:59:03 -0500
Subject: dts: calxeda: add ARM PSCI binding

Add the PSCI binding node for Calxeda SOCs. Only claiming "arm,psci"
support since there is no agreement on 0.2 binding definition.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: devicetree@vger.kernel.org
---
 arch/arm/boot/dts/ecx-common.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/ecx-common.dtsi b/arch/arm/boot/dts/ecx-common.dtsi
index e8559b753c9d..bc22557d7a6a 100644
--- a/arch/arm/boot/dts/ecx-common.dtsi
+++ b/arch/arm/boot/dts/ecx-common.dtsi
@@ -19,6 +19,14 @@
 		bootargs = "console=ttyAMA0";
 	};
 
+	psci {
+		compatible	= "arm,psci";
+		method		= "smc";
+		cpu_suspend	= <0x84000002>;
+		cpu_off		= <0x84000004>;
+		cpu_on		= <0x84000006>;
+	};
+
 	soc {
 		#address-cells = <1>;
 		#size-cells = <1>;
-- 
cgit 


From a6f951ddbdfb7bd87d31a44f61abe202ed6ce57f Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Tue, 1 Oct 2013 14:24:58 -0400
Subject: NFSv4: Fix a use-after-free situation in _nfs4_proc_getlk()

In nfs4_proc_getlk(), when some error causes a retry of the call to
_nfs4_proc_getlk(), we can end up with Oopses of the form

 BUG: unable to handle kernel NULL pointer dereference at 0000000000000134
 IP: [<ffffffff8165270e>] _raw_spin_lock+0xe/0x30
<snip>
 Call Trace:
  [<ffffffff812f287d>] _atomic_dec_and_lock+0x4d/0x70
  [<ffffffffa053c4f2>] nfs4_put_lock_state+0x32/0xb0 [nfsv4]
  [<ffffffffa053c585>] nfs4_fl_release_lock+0x15/0x20 [nfsv4]
  [<ffffffffa0522c06>] _nfs4_proc_getlk.isra.40+0x146/0x170 [nfsv4]
  [<ffffffffa052ad99>] nfs4_proc_lock+0x399/0x5a0 [nfsv4]

The problem is that we don't clear the request->fl_ops after the first
try and so when we retry, nfs4_set_lock_state() exits early without
setting the lock stateid.
Regression introduced by commit 70cc6487a4e08b8698c0e2ec935fb48d10490162
(locks: make ->lock release private data before returning in GETLK case)

Reported-by: Weston Andros Adamson <dros@netapp.com>
Reported-by: Jorge Mora <mora@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: <stable@vger.kernel.org> #2.6.22+
---
 fs/nfs/nfs4proc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index d53d6785cba2..d2b4845ecb4d 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -5106,6 +5106,7 @@ static int _nfs4_proc_getlk(struct nfs4_state *state, int cmd, struct file_lock
 			status = 0;
 	}
 	request->fl_ops->fl_release_private(request);
+	request->fl_ops = NULL;
 out:
 	return status;
 }
-- 
cgit 


From 7f260e8575bf53b93b77978c1e39f8e67612759c Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Tue, 24 Sep 2013 11:25:22 -0400
Subject: SUNRPC: Enable the keepalive option for TCP sockets

For NFSv4 we want to avoid retransmitting RPC calls unless the TCP
connection breaks. However we still want to detect TCP connection
breakage as soon as possible. Do this by setting the keepalive option
with the idle timeout and count set to the 'timeo' and 'retrans' mount
options.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 net/sunrpc/xprtsock.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index ee03d35677d9..208a7634b916 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -2112,6 +2112,19 @@ static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock)
 
 	if (!transport->inet) {
 		struct sock *sk = sock->sk;
+		unsigned int keepidle = xprt->timeout->to_initval / HZ;
+		unsigned int keepcnt = xprt->timeout->to_retries + 1;
+		unsigned int opt_on = 1;
+
+		/* TCP Keepalive options */
+		kernel_setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE,
+				(char *)&opt_on, sizeof(opt_on));
+		kernel_setsockopt(sock, SOL_TCP, TCP_KEEPIDLE,
+				(char *)&keepidle, sizeof(keepidle));
+		kernel_setsockopt(sock, SOL_TCP, TCP_KEEPINTVL,
+				(char *)&keepidle, sizeof(keepidle));
+		kernel_setsockopt(sock, SOL_TCP, TCP_KEEPCNT,
+				(char *)&keepcnt, sizeof(keepcnt));
 
 		write_lock_bh(&sk->sk_callback_lock);
 
-- 
cgit 


From 8b71798c0d389d4cadc884fc7d68c61ee8cd4f45 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Thu, 26 Sep 2013 10:18:04 -0400
Subject: SUNRPC: Only update the TCP connect cookie on a successful connect

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 net/sunrpc/xprtsock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 208a7634b916..9928ba164d62 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -1511,6 +1511,7 @@ static void xs_tcp_state_change(struct sock *sk)
 			transport->tcp_copied = 0;
 			transport->tcp_flags =
 				TCP_RCV_COPY_FRAGHDR | TCP_RCV_COPY_XID;
+			xprt->connect_cookie++;
 
 			xprt_wake_pending_tasks(xprt, -EAGAIN);
 		}
@@ -2164,7 +2165,6 @@ static int xs_tcp_finish_connecting(struct rpc_xprt *xprt, struct socket *sock)
 	case 0:
 	case -EINPROGRESS:
 		/* SYN_SENT! */
-		xprt->connect_cookie++;
 		if (xprt->reestablish_timeout < XS_TCP_INIT_REEST_TO)
 			xprt->reestablish_timeout = XS_TCP_INIT_REEST_TO;
 	}
-- 
cgit 


From 0a6605213040dd2fb479f0d1a9a87a1d7fa70904 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Wed, 25 Sep 2013 11:31:54 -0400
Subject: SUNRPC: Don't set the request connect_cookie until a successful
 transmit

We're using the request connect_cookie to track whether or not a
request was successfully transmitted on the current transport
connection or not. For that reason we should ensure that it is
only set after we've successfully transmitted the request.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 net/sunrpc/xprt.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 095363eee764..e9ee7bf3a638 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -912,7 +912,6 @@ void xprt_transmit(struct rpc_task *task)
 	} else if (!req->rq_bytes_sent)
 		return;
 
-	req->rq_connect_cookie = xprt->connect_cookie;
 	req->rq_xtime = ktime_get();
 	status = xprt->ops->send_request(task);
 	if (status != 0) {
@@ -938,12 +937,14 @@ void xprt_transmit(struct rpc_task *task)
 	/* Don't race with disconnect */
 	if (!xprt_connected(xprt))
 		task->tk_status = -ENOTCONN;
-	else if (!req->rq_reply_bytes_recvd && rpc_reply_expected(task)) {
+	else {
 		/*
 		 * Sleep on the pending queue since
 		 * we're expecting a reply.
 		 */
-		rpc_sleep_on(&xprt->pending, task, xprt_timer);
+		if (!req->rq_reply_bytes_recvd && rpc_reply_expected(task))
+			rpc_sleep_on(&xprt->pending, task, xprt_timer);
+		req->rq_connect_cookie = xprt->connect_cookie;
 	}
 	spin_unlock_bh(&xprt->transport_lock);
 }
@@ -1186,6 +1187,7 @@ static void xprt_request_init(struct rpc_task *task, struct rpc_xprt *xprt)
 	req->rq_xprt    = xprt;
 	req->rq_buffer  = NULL;
 	req->rq_xid     = xprt_alloc_xid(xprt);
+	req->rq_connect_cookie = xprt->connect_cookie - 1;
 	req->rq_release_snd_buf = NULL;
 	xprt_reset_majortimeo(req);
 	dprintk("RPC: %5u reserved req %p xid %08x\n", task->tk_pid,
-- 
cgit 


From ee071eff0f1afafa9917254a6e4ee19d28085f1d Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Fri, 27 Sep 2013 11:09:53 -0400
Subject: SUNRPC: Clear the request rq_bytes_sent field in xprt_release_write

Otherwise the tests of req->rq_bytes_sent in xprt_prepare_transmit
will fail if we're dealing with a resend.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 net/sunrpc/xprt.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index e9ee7bf3a638..8cc5c8bcad7f 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -358,6 +358,11 @@ out_unlock:
 void xprt_release_xprt(struct rpc_xprt *xprt, struct rpc_task *task)
 {
 	if (xprt->snd_task == task) {
+		if (task != NULL) {
+			struct rpc_rqst *req = task->tk_rqstp;
+			if (req != NULL)
+				req->rq_bytes_sent = 0;
+		}
 		xprt_clear_locked(xprt);
 		__xprt_lock_write_next(xprt);
 	}
@@ -375,6 +380,11 @@ EXPORT_SYMBOL_GPL(xprt_release_xprt);
 void xprt_release_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task)
 {
 	if (xprt->snd_task == task) {
+		if (task != NULL) {
+			struct rpc_rqst *req = task->tk_rqstp;
+			if (req != NULL)
+				req->rq_bytes_sent = 0;
+		}
 		xprt_clear_locked(xprt);
 		__xprt_lock_write_next_cong(xprt);
 	}
-- 
cgit 


From 90051ea774613ffc6b8aad3dc665c8505d6205a8 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Wed, 25 Sep 2013 12:17:18 -0400
Subject: SUNRPC: Clean up - convert xprt_prepare_transmit to return a bool

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 include/linux/sunrpc/xprt.h |  2 +-
 net/sunrpc/clnt.c           |  6 ++----
 net/sunrpc/xprt.c           | 15 +++++++++------
 3 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index cec7b9b5e1bf..8097b9df6773 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -288,7 +288,7 @@ int			xprt_reserve_xprt(struct rpc_xprt *xprt, struct rpc_task *task);
 int			xprt_reserve_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task);
 void			xprt_alloc_slot(struct rpc_xprt *xprt, struct rpc_task *task);
 void			xprt_lock_and_alloc_slot(struct rpc_xprt *xprt, struct rpc_task *task);
-int			xprt_prepare_transmit(struct rpc_task *task);
+bool			xprt_prepare_transmit(struct rpc_task *task);
 void			xprt_transmit(struct rpc_task *task);
 void			xprt_end_transmit(struct rpc_task *task);
 int			xprt_adjust_timeout(struct rpc_rqst *req);
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 77479606a971..fa50e42aabd3 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1722,8 +1722,7 @@ call_transmit(struct rpc_task *task)
 	task->tk_action = call_status;
 	if (task->tk_status < 0)
 		return;
-	task->tk_status = xprt_prepare_transmit(task);
-	if (task->tk_status != 0)
+	if (!xprt_prepare_transmit(task))
 		return;
 	task->tk_action = call_transmit_status;
 	/* Encode here so that rpcsec_gss can use correct sequence number. */
@@ -1811,8 +1810,7 @@ call_bc_transmit(struct rpc_task *task)
 {
 	struct rpc_rqst *req = task->tk_rqstp;
 
-	task->tk_status = xprt_prepare_transmit(task);
-	if (task->tk_status == -EAGAIN) {
+	if (!xprt_prepare_transmit(task)) {
 		/*
 		 * Could not reserve the transport. Try again after the
 		 * transport is released.
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 8cc5c8bcad7f..2326af57b9b9 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -864,24 +864,27 @@ static inline int xprt_has_timer(struct rpc_xprt *xprt)
  * @task: RPC task about to send a request
  *
  */
-int xprt_prepare_transmit(struct rpc_task *task)
+bool xprt_prepare_transmit(struct rpc_task *task)
 {
 	struct rpc_rqst	*req = task->tk_rqstp;
 	struct rpc_xprt	*xprt = req->rq_xprt;
-	int err = 0;
+	bool ret = false;
 
 	dprintk("RPC: %5u xprt_prepare_transmit\n", task->tk_pid);
 
 	spin_lock_bh(&xprt->transport_lock);
 	if (req->rq_reply_bytes_recvd && !req->rq_bytes_sent) {
-		err = req->rq_reply_bytes_recvd;
+		task->tk_status = req->rq_reply_bytes_recvd;
 		goto out_unlock;
 	}
-	if (!xprt->ops->reserve_xprt(xprt, task))
-		err = -EAGAIN;
+	if (!xprt->ops->reserve_xprt(xprt, task)) {
+		task->tk_status = -EAGAIN;
+		goto out_unlock;
+	}
+	ret = true;
 out_unlock:
 	spin_unlock_bh(&xprt->transport_lock);
-	return err;
+	return ret;
 }
 
 void xprt_end_transmit(struct rpc_task *task)
-- 
cgit 


From 8a19a0b6cb2e2216afd68ef2047f30260cc8a220 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Tue, 24 Sep 2013 12:00:27 -0400
Subject: SUNRPC: Add RPC task and client level options to disable the resend
 timeout

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 include/linux/sunrpc/clnt.h  |  2 ++
 include/linux/sunrpc/sched.h |  1 +
 net/sunrpc/clnt.c            |  5 ++++-
 net/sunrpc/xprt.c            | 15 ++++++++++++---
 4 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 6740801aa71a..943ee895f2d1 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -49,6 +49,7 @@ struct rpc_clnt {
 
 	unsigned int		cl_softrtry : 1,/* soft timeouts */
 				cl_discrtry : 1,/* disconnect before retry */
+				cl_noretranstimeo: 1,/* No retransmit timeouts */
 				cl_autobind : 1,/* use getport() */
 				cl_chatty   : 1;/* be verbose */
 
@@ -126,6 +127,7 @@ struct rpc_create_args {
 #define RPC_CLNT_CREATE_QUIET		(1UL << 6)
 #define RPC_CLNT_CREATE_INFINITE_SLOTS	(1UL << 7)
 #define RPC_CLNT_CREATE_NO_IDLE_TIMEOUT	(1UL << 8)
+#define RPC_CLNT_CREATE_NO_RETRANS_TIMEOUT	(1UL << 9)
 
 struct rpc_clnt *rpc_create(struct rpc_create_args *args);
 struct rpc_clnt	*rpc_bind_new_program(struct rpc_clnt *,
diff --git a/include/linux/sunrpc/sched.h b/include/linux/sunrpc/sched.h
index 096ee58be11a..3a847de83fab 100644
--- a/include/linux/sunrpc/sched.h
+++ b/include/linux/sunrpc/sched.h
@@ -122,6 +122,7 @@ struct rpc_task_setup {
 #define RPC_TASK_SENT		0x0800		/* message was sent */
 #define RPC_TASK_TIMEOUT	0x1000		/* fail with ETIMEDOUT on timeout */
 #define RPC_TASK_NOCONNECT	0x2000		/* return ENOTCONN if not connected */
+#define RPC_TASK_NO_RETRANS_TIMEOUT	0x4000		/* wait forever for a reply */
 
 #define RPC_IS_ASYNC(t)		((t)->tk_flags & RPC_TASK_ASYNC)
 #define RPC_IS_SWAPPER(t)	((t)->tk_flags & RPC_TASK_SWAPPER)
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index fa50e42aabd3..b58525009e40 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -772,6 +772,8 @@ void rpc_task_set_client(struct rpc_task *task, struct rpc_clnt *clnt)
 		atomic_inc(&clnt->cl_count);
 		if (clnt->cl_softrtry)
 			task->tk_flags |= RPC_TASK_SOFT;
+		if (clnt->cl_noretranstimeo)
+			task->tk_flags |= RPC_TASK_NO_RETRANS_TIMEOUT;
 		if (sk_memalloc_socks()) {
 			struct rpc_xprt *xprt;
 
@@ -1898,7 +1900,8 @@ call_status(struct rpc_task *task)
 		rpc_delay(task, 3*HZ);
 	case -ETIMEDOUT:
 		task->tk_action = call_timeout;
-		if (task->tk_client->cl_discrtry)
+		if (!(task->tk_flags & RPC_TASK_NO_RETRANS_TIMEOUT)
+		    && task->tk_client->cl_discrtry)
 			xprt_conditional_disconnect(req->rq_xprt,
 					req->rq_connect_cookie);
 		break;
diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 2326af57b9b9..d166d9947e36 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -873,9 +873,18 @@ bool xprt_prepare_transmit(struct rpc_task *task)
 	dprintk("RPC: %5u xprt_prepare_transmit\n", task->tk_pid);
 
 	spin_lock_bh(&xprt->transport_lock);
-	if (req->rq_reply_bytes_recvd && !req->rq_bytes_sent) {
-		task->tk_status = req->rq_reply_bytes_recvd;
-		goto out_unlock;
+	if (!req->rq_bytes_sent) {
+		if (req->rq_reply_bytes_recvd) {
+			task->tk_status = req->rq_reply_bytes_recvd;
+			goto out_unlock;
+		}
+		if ((task->tk_flags & RPC_TASK_NO_RETRANS_TIMEOUT)
+		    && xprt_connected(xprt)
+		    && req->rq_connect_cookie == xprt->connect_cookie) {
+			xprt->ops->set_retrans_timeout(task);
+			rpc_sleep_on(&xprt->pending, task, xprt_timer);
+			goto out_unlock;
+		}
 	}
 	if (!xprt->ops->reserve_xprt(xprt, task)) {
 		task->tk_status = -EAGAIN;
-- 
cgit 


From 99875249bfbfb6d9a2aba020ce65da2862d0dafa Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Tue, 24 Sep 2013 12:06:07 -0400
Subject: NFSv4: Ensure that we disable the resend timeout for NFSv4

The spec states that the client should not resend requests because
the server will disconnect if it needs to drop an RPC request.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/client.c           | 2 ++
 fs/nfs/nfs4client.c       | 1 +
 include/linux/nfs_fs_sb.h | 1 +
 3 files changed, 4 insertions(+)

diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 2dceee4db076..af0325864df6 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -590,6 +590,8 @@ int nfs_create_rpc_client(struct nfs_client *clp,
 
 	if (test_bit(NFS_CS_DISCRTRY, &clp->cl_flags))
 		args.flags |= RPC_CLNT_CREATE_DISCRTRY;
+	if (test_bit(NFS_CS_NO_RETRANS_TIMEOUT, &clp->cl_flags))
+		args.flags |= RPC_CLNT_CREATE_NO_RETRANS_TIMEOUT;
 	if (test_bit(NFS_CS_NORESVPORT, &clp->cl_flags))
 		args.flags |= RPC_CLNT_CREATE_NONPRIVPORT;
 	if (test_bit(NFS_CS_INFINITE_SLOTS, &clp->cl_flags))
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index a860ab566d6e..511cdce6ecf2 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -368,6 +368,7 @@ struct nfs_client *nfs4_init_client(struct nfs_client *clp,
 	if (clp->cl_minorversion != 0)
 		__set_bit(NFS_CS_INFINITE_SLOTS, &clp->cl_flags);
 	__set_bit(NFS_CS_DISCRTRY, &clp->cl_flags);
+	__set_bit(NFS_CS_NO_RETRANS_TIMEOUT, &clp->cl_flags);
 	error = nfs_create_rpc_client(clp, timeparms, RPC_AUTH_GSS_KRB5I);
 	if (error == -EINVAL)
 		error = nfs_create_rpc_client(clp, timeparms, RPC_AUTH_UNIX);
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index b8cedced50c9..f9c0a6cb41e9 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -41,6 +41,7 @@ struct nfs_client {
 #define NFS_CS_DISCRTRY		1		/* - disconnect on RPC retry */
 #define NFS_CS_MIGRATION	2		/* - transparent state migr */
 #define NFS_CS_INFINITE_SLOTS	3		/* - don't limit TCP slots */
+#define NFS_CS_NO_RETRANS_TIMEOUT	4	/* - Disable retransmit timeouts */
 	struct sockaddr_storage	cl_addr;	/* server identifier */
 	size_t			cl_addrlen;
 	char *			cl_hostname;	/* hostname of server */
-- 
cgit 


From ca7f33aa5b8051f17eec81766b8f39c83caf4196 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Wed, 25 Sep 2013 13:39:45 -0400
Subject: SUNRPC: Fix RPC call retransmission statistics

A retransmit should be when you successfully transmit an RPC call to
the server a second time.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 net/sunrpc/clnt.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index b58525009e40..bde31159f632 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1719,6 +1719,8 @@ call_connect_status(struct rpc_task *task)
 static void
 call_transmit(struct rpc_task *task)
 {
+	int is_retrans = RPC_WAS_SENT(task);
+
 	dprint_status(task);
 
 	task->tk_action = call_status;
@@ -1743,6 +1745,8 @@ call_transmit(struct rpc_task *task)
 	xprt_transmit(task);
 	if (task->tk_status < 0)
 		return;
+	if (is_retrans)
+		task->tk_client->cl_stats->rpcretrans++;
 	/*
 	 * On success, ensure that we call xprt_end_transmit() before sleeping
 	 * in order to allow access to the socket to other RPC requests.
@@ -1983,7 +1987,6 @@ call_timeout(struct rpc_task *task)
 	rpcauth_invalcred(task);
 
 retry:
-	clnt->cl_stats->rpcretrans++;
 	task->tk_action = call_bind;
 	task->tk_status = 0;
 }
@@ -2026,7 +2029,6 @@ call_decode(struct rpc_task *task)
 	if (req->rq_rcv_buf.len < 12) {
 		if (!RPC_IS_SOFT(task)) {
 			task->tk_action = call_bind;
-			clnt->cl_stats->rpcretrans++;
 			goto out_retry;
 		}
 		dprintk("RPC:       %s: too small RPC reply size (%d bytes)\n",
-- 
cgit 


From 92551948174d079b12541437f51cbe3e17d9dd24 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Fri, 27 Sep 2013 11:28:40 -0400
Subject: SUNRPC: Remove redundant initialisations of request rq_bytes_sent

Now that we clear the rq_bytes_sent field on unlock, we don't need
to set it on lock, so we just set it once when initialising the request.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 net/sunrpc/xprt.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index d166d9947e36..4953550537e0 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -205,10 +205,8 @@ int xprt_reserve_xprt(struct rpc_xprt *xprt, struct rpc_task *task)
 		goto out_sleep;
 	}
 	xprt->snd_task = task;
-	if (req != NULL) {
-		req->rq_bytes_sent = 0;
+	if (req != NULL)
 		req->rq_ntrans++;
-	}
 
 	return 1;
 
@@ -263,7 +261,6 @@ int xprt_reserve_xprt_cong(struct rpc_xprt *xprt, struct rpc_task *task)
 	}
 	if (__xprt_get_cong(xprt, task)) {
 		xprt->snd_task = task;
-		req->rq_bytes_sent = 0;
 		req->rq_ntrans++;
 		return 1;
 	}
@@ -300,10 +297,8 @@ static bool __xprt_lock_write_func(struct rpc_task *task, void *data)
 
 	req = task->tk_rqstp;
 	xprt->snd_task = task;
-	if (req) {
-		req->rq_bytes_sent = 0;
+	if (req)
 		req->rq_ntrans++;
-	}
 	return true;
 }
 
@@ -329,7 +324,6 @@ static bool __xprt_lock_write_cong_func(struct rpc_task *task, void *data)
 	}
 	if (__xprt_get_cong(xprt, task)) {
 		xprt->snd_task = task;
-		req->rq_bytes_sent = 0;
 		req->rq_ntrans++;
 		return true;
 	}
@@ -1210,6 +1204,11 @@ static void xprt_request_init(struct rpc_task *task, struct rpc_xprt *xprt)
 	req->rq_buffer  = NULL;
 	req->rq_xid     = xprt_alloc_xid(xprt);
 	req->rq_connect_cookie = xprt->connect_cookie - 1;
+	req->rq_bytes_sent = 0;
+	req->rq_snd_buf.len = 0;
+	req->rq_snd_buf.buflen = 0;
+	req->rq_rcv_buf.len = 0;
+	req->rq_rcv_buf.buflen = 0;
 	req->rq_release_snd_buf = NULL;
 	xprt_reset_majortimeo(req);
 	dprintk("RPC: %5u reserved req %p xid %08x\n", task->tk_pid,
-- 
cgit 


From 561ec1603171cd9b38dcf6cac53e8710f437a48d Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Thu, 26 Sep 2013 15:22:45 -0400
Subject: SUNRPC: call_connect_status should recheck bind and connect status on
 error

Currently, we go directly to call_transmit which sends us to call_status
on error. If we know that the connect attempt failed, we should rather
just jump straight back to call_bind and call_connect.

Ditto for EAGAIN, except do not delay.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 net/sunrpc/clnt.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index bde31159f632..7352aef8a254 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -1692,6 +1692,7 @@ call_connect_status(struct rpc_task *task)
 	dprint_status(task);
 
 	trace_rpc_connect_status(task, status);
+	task->tk_status = 0;
 	switch (status) {
 		/* if soft mounted, test if we've timed out */
 	case -ETIMEDOUT:
@@ -1700,12 +1701,14 @@ call_connect_status(struct rpc_task *task)
 	case -ECONNREFUSED:
 	case -ECONNRESET:
 	case -ENETUNREACH:
+		/* retry with existing socket, after a delay */
+		rpc_delay(task, 3*HZ);
 		if (RPC_IS_SOFTCONN(task))
 			break;
-		/* retry with existing socket, after a delay */
-	case 0:
 	case -EAGAIN:
-		task->tk_status = 0;
+		task->tk_action = call_bind;
+		return;
+	case 0:
 		clnt->cl_stats->netreconn++;
 		task->tk_action = call_transmit;
 		return;
-- 
cgit 


From 17ec81c15fd022842f9bc947841ba9fb9eb52591 Mon Sep 17 00:00:00 2001
From: Jie Liu <jeff.liu@oracle.com>
Date: Sun, 22 Sep 2013 16:25:15 +0800
Subject: xfs: fix the wrong new_size/rnew_size at xfs_iext_realloc_direct()

At xfs_iext_realloc_direct(), the new_size is changed by adding
if_bytes if originally the extent records are stored at the inline
extent buffer, and we have to switch from it to a direct extent
list for those new allocated extents, this is wrong. e.g,

Create a file with three extents which was showing as following,

xfs_io -f -c "truncate 100m" /xfs/testme

for i in $(seq 0 5 10); do
	offset=$(($i * $((1 << 20))))
	xfs_io -c "pwrite $offset 1m" /xfs/testme
done

Inline
------
irec:	if_bytes	bytes_diff	new_size
1st	0		16		16
2nd	16		16		32

Switching
---------						rnew_size
3rd	32		16		48 + 32 = 80	roundup=128

In this case, the desired value of new_size should be 48, and then
it will be roundup to 64 and be assigned to rnew_size.

However, this issue has been covered by resetting the if_bytes to
the new_size which is calculated at the begnning of xfs_iext_add()
before leaving out this function, and in turn make the rnew_size
correctly again. Hence, this can not be detected via xfstestes.

This patch fix above problem and revise the new_size comments at
xfs_iext_realloc_direct() to make it more readable.  Also, fix the
comments while switching from the inline extent buffer to a direct
extent list to reflect this change.

Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_inode_fork.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/fs/xfs/xfs_inode_fork.c b/fs/xfs/xfs_inode_fork.c
index 02f1083955bb..4fa56fcb38d1 100644
--- a/fs/xfs/xfs_inode_fork.c
+++ b/fs/xfs/xfs_inode_fork.c
@@ -1359,7 +1359,7 @@ xfs_iext_remove_indirect(
 void
 xfs_iext_realloc_direct(
 	xfs_ifork_t	*ifp,		/* inode fork pointer */
-	int		new_size)	/* new size of extents */
+	int		new_size)	/* new size of extents after adding */
 {
 	int		rnew_size;	/* real new size of extents */
 
@@ -1397,13 +1397,8 @@ xfs_iext_realloc_direct(
 				rnew_size - ifp->if_real_bytes);
 		}
 	}
-	/*
-	 * Switch from the inline extent buffer to a direct
-	 * extent list. Be sure to include the inline extent
-	 * bytes in new_size.
-	 */
+	/* Switch from the inline extent buffer to a direct extent list */
 	else {
-		new_size += ifp->if_bytes;
 		if (!is_power_of_2(new_size)) {
 			rnew_size = roundup_pow_of_two(new_size);
 		}
-- 
cgit 


From d948709b8e468510d8c855d1e4c9f1cb7b524880 Mon Sep 17 00:00:00 2001
From: Ben Myers <bpm@sgi.com>
Date: Tue, 10 Sep 2013 18:11:22 -0500
Subject: xfs: remove usage of is_bad_inode

XFS never calls mark_inode_bad or iget_failed, so it will never see a
bad inode.  Remove all checks for is_bad_inode because they are
unnecessary.

Signed-off-by: Ben Myers <bpm@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
---
 fs/xfs/xfs_icache.c | 7 -------
 fs/xfs/xfs_inode.c  | 2 +-
 fs/xfs/xfs_super.c  | 9 ---------
 3 files changed, 1 insertion(+), 17 deletions(-)

diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index 474807a401c8..76a4ecd638c3 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -500,11 +500,6 @@ xfs_inode_ag_walk_grab(
 	if (!igrab(inode))
 		return ENOENT;
 
-	if (is_bad_inode(inode)) {
-		IRELE(ip);
-		return ENOENT;
-	}
-
 	/* inode is valid */
 	return 0;
 
@@ -918,8 +913,6 @@ restart:
 		xfs_iflock(ip);
 	}
 
-	if (is_bad_inode(VFS_I(ip)))
-		goto reclaim;
 	if (XFS_FORCED_SHUTDOWN(ip->i_mount)) {
 		xfs_iunpin_wait(ip);
 		xfs_iflush_abort(ip, false);
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index e3d75385aa76..5ac716b2df22 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1687,7 +1687,7 @@ xfs_inactive(
 	 * If the inode is already free, then there can be nothing
 	 * to clean up here.
 	 */
-	if (ip->i_d.di_mode == 0 || is_bad_inode(VFS_I(ip))) {
+	if (ip->i_d.di_mode == 0) {
 		ASSERT(ip->i_df.if_real_bytes == 0);
 		ASSERT(ip->i_df.if_broot_bytes == 0);
 		return VN_INACTIVE_CACHE;
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 15188cc99449..938e50fe6c61 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -946,10 +946,6 @@ xfs_fs_destroy_inode(
 
 	XFS_STATS_INC(vn_reclaim);
 
-	/* bad inode, get out here ASAP */
-	if (is_bad_inode(inode))
-		goto out_reclaim;
-
 	ASSERT(XFS_FORCED_SHUTDOWN(ip->i_mount) || ip->i_delayed_blks == 0);
 
 	/*
@@ -965,7 +961,6 @@ xfs_fs_destroy_inode(
 	 * this more efficiently than we can here, so simply let background
 	 * reclaim tear down all inodes.
 	 */
-out_reclaim:
 	xfs_inode_set_reclaim_tag(ip);
 }
 
@@ -1491,10 +1486,6 @@ xfs_fs_fill_super(
 		error = ENOENT;
 		goto out_unmount;
 	}
-	if (is_bad_inode(root)) {
-		error = EINVAL;
-		goto out_unmount;
-	}
 	sb->s_root = d_make_root(root);
 	if (!sb->s_root) {
 		error = ENOMEM;
-- 
cgit 


From 29c700d7585bbf732121816baf852d467c8b80b5 Mon Sep 17 00:00:00 2001
From: Markus Mayer <markus.mayer@linaro.org>
Date: Tue, 10 Sep 2013 11:07:02 -0700
Subject: ARM: bcm281xx: Enable GPIO driver

Turn on the bcm281xx GPIO driver in the kernel configuration.

Signed-off-by: Markus Mayer <markus.mayer@linaro.org>
Reviewed-by: Christian Daudt <csd@broadcom.com>
---
 arch/arm/mach-bcm/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
index 69d67f714a2f..7f6fca801669 100644
--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -9,7 +9,7 @@ config ARCH_BCM
 	select CLKSRC_OF
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_TIME
-	select GPIO_BCM
+	select GPIO_BCM_KONA
 	select SPARSE_IRQ
 	select TICK_ONESHOT
 	select CACHE_L2X0
-- 
cgit 


From 616b931eeaca190ef7fb6da21ae31b973a5b6b05 Mon Sep 17 00:00:00 2001
From: Christian Daudt <csd@broadcom.com>
Date: Tue, 24 Sep 2013 13:18:59 -0700
Subject: ARM: bcm281xx: more descriptive machine string

Add SoC model to DT_MACHINE_START string.

Signed-off-by: Christian Daudt <bcm@fixthebug.org>
Reviewed-by: Markus Mayer <mmayer@broadcom.com>
Reviewed-by: Mark Hambleton <mahamble@broadcom.com>
Reviewed-by: James King <jamesk@broadcom.com>
---
 arch/arm/mach-bcm/board_bcm281xx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-bcm/board_bcm281xx.c b/arch/arm/mach-bcm/board_bcm281xx.c
index 8d9f931164bb..dcfaf4ab25d6 100644
--- a/arch/arm/mach-bcm/board_bcm281xx.c
+++ b/arch/arm/mach-bcm/board_bcm281xx.c
@@ -67,7 +67,7 @@ static void __init board_init(void)
 
 static const char * const bcm11351_dt_compat[] = { "brcm,bcm11351", NULL, };
 
-DT_MACHINE_START(BCM11351_DT, "Broadcom Application Processor")
+DT_MACHINE_START(BCM11351_DT, "BCM281xx Broadcom Application Processor")
 	.init_time = clocksource_of_init,
 	.init_machine = board_init,
 	.restart = bcm_kona_restart,
-- 
cgit 


From f1c8b2edf916b5be9dc29e98989a5eaff3c6e75b Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Sun, 29 Sep 2013 02:37:14 +0200
Subject: clk: Add error handling to clk_fetch_parent_index()

There are at least two different error cases that can happen in
clk_fetch_parent_index() function:
 - allocation failure,
 - parent clock lookup failure,
however it returns only an u8, which is supposed to contain parent clock
index.

This patch modified the function to return full int instead allowing
positive clock indices and negative error codes to be returned. All
users of this function are adjusted as well to handle the return value
correctly.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
 drivers/clk/clk.c | 25 ++++++++++++++-----------
 1 file changed, 14 insertions(+), 11 deletions(-)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index a004769528e6..9e0a8372f59c 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -1080,13 +1080,16 @@ unsigned long clk_get_rate(struct clk *clk)
 }
 EXPORT_SYMBOL_GPL(clk_get_rate);
 
-static u8 clk_fetch_parent_index(struct clk *clk, struct clk *parent)
+static int clk_fetch_parent_index(struct clk *clk, struct clk *parent)
 {
-	u8 i;
+	int i;
 
-	if (!clk->parents)
+	if (!clk->parents) {
 		clk->parents = kzalloc((sizeof(struct clk*) * clk->num_parents),
 								GFP_KERNEL);
+		if (!clk->parents)
+			return -ENOMEM;
+	}
 
 	/*
 	 * find index of new parent clock using cached parent ptrs,
@@ -1095,15 +1098,15 @@ static u8 clk_fetch_parent_index(struct clk *clk, struct clk *parent)
 	 */
 	for (i = 0; i < clk->num_parents; i++) {
 		if (clk->parents && clk->parents[i] == parent)
-			break;
+			return i;
 		else if (!strcmp(clk->parent_names[i], parent->name)) {
 			if (clk->parents)
 				clk->parents[i] = __clk_lookup(parent->name);
-			break;
+			return i;
 		}
 	}
 
-	return i;
+	return -EINVAL;
 }
 
 static void clk_reparent(struct clk *clk, struct clk *new_parent)
@@ -1265,7 +1268,7 @@ static struct clk *clk_calc_new_rates(struct clk *clk, unsigned long rate)
 	struct clk *old_parent, *parent;
 	unsigned long best_parent_rate = 0;
 	unsigned long new_rate;
-	u8 p_index = 0;
+	int p_index = 0;
 
 	/* sanity */
 	if (IS_ERR_OR_NULL(clk))
@@ -1306,7 +1309,7 @@ static struct clk *clk_calc_new_rates(struct clk *clk, unsigned long rate)
 	/* try finding the new parent index */
 	if (parent) {
 		p_index = clk_fetch_parent_index(clk, parent);
-		if (p_index == clk->num_parents) {
+		if (p_index < 0) {
 			pr_debug("%s: clk %s can not be parent of clk %s\n",
 				 __func__, parent->name, clk->name);
 			return NULL;
@@ -1568,7 +1571,7 @@ void __clk_reparent(struct clk *clk, struct clk *new_parent)
 int clk_set_parent(struct clk *clk, struct clk *parent)
 {
 	int ret = 0;
-	u8 p_index = 0;
+	int p_index = 0;
 	unsigned long p_rate = 0;
 
 	if (!clk)
@@ -1597,10 +1600,10 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
 	if (parent) {
 		p_index = clk_fetch_parent_index(clk, parent);
 		p_rate = parent->rate;
-		if (p_index == clk->num_parents) {
+		if (p_index < 0) {
 			pr_debug("%s: clk %s can not be parent of clk %s\n",
 					__func__, parent->name, clk->name);
-			ret = -EINVAL;
+			ret = p_index;
 			goto out;
 		}
 	}
-- 
cgit 


From 96a7ed9079a3483c5681b17f4713c37c1cf2b1c9 Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Sun, 29 Sep 2013 02:37:15 +0200
Subject: clk: Use kcalloc() to allocate arrays

Instead of calculating sizes of arrays manually, kcalloc() can be used
to allocate arrays of elements with defined size. This is just a cleanup
patch without any functional changes.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
 drivers/clk/clk.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 9e0a8372f59c..63f9ac16dcb6 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -1085,8 +1085,8 @@ static int clk_fetch_parent_index(struct clk *clk, struct clk *parent)
 	int i;
 
 	if (!clk->parents) {
-		clk->parents = kzalloc((sizeof(struct clk*) * clk->num_parents),
-								GFP_KERNEL);
+		clk->parents = kcalloc(clk->num_parents,
+					sizeof(struct clk *), GFP_KERNEL);
 		if (!clk->parents)
 			return -ENOMEM;
 	}
@@ -1535,7 +1535,7 @@ static struct clk *__clk_init_parent(struct clk *clk)
 
 	if (!clk->parents)
 		clk->parents =
-			kzalloc((sizeof(struct clk*) * clk->num_parents),
+			kcalloc(clk->num_parents, sizeof(struct clk *),
 					GFP_KERNEL);
 
 	ret = clk_get_parent_by_index(clk, index);
@@ -1692,8 +1692,8 @@ int __clk_init(struct device *dev, struct clk *clk)
 	 * for clock drivers to statically initialize clk->parents.
 	 */
 	if (clk->num_parents > 1 && !clk->parents) {
-		clk->parents = kzalloc((sizeof(struct clk*) * clk->num_parents),
-				GFP_KERNEL);
+		clk->parents = kcalloc(clk->num_parents, sizeof(struct clk *),
+					GFP_KERNEL);
 		/*
 		 * __clk_lookup returns NULL for parents that have not been
 		 * clk_init'd; thus any access to clk->parents[] must check
@@ -1833,8 +1833,8 @@ static int _clk_register(struct device *dev, struct clk_hw *hw, struct clk *clk)
 	hw->clk = clk;
 
 	/* allocate local copy in case parent_names is __initdata */
-	clk->parent_names = kzalloc((sizeof(char*) * clk->num_parents),
-			GFP_KERNEL);
+	clk->parent_names = kcalloc(clk->num_parents, sizeof(char *),
+					GFP_KERNEL);
 
 	if (!clk->parent_names) {
 		pr_err("%s: could not allocate clk->parent_names\n", __func__);
-- 
cgit 


From da0f0b2c3ad2ad9533c8c5cae84ad88d57a5e8dc Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Sun, 29 Sep 2013 02:37:16 +0200
Subject: clk: Correct lookup logic in clk_fetch_parent_index()

This function is supposed to iterate over all parents of given child
clock to find the index of given parent clock in its parent list,
using parent cache if possible and falling back to string compare
otherwise. However currently the logic falls back to string compare in
every iteration in which clock cache entry does not match given parent,
due to wrong check conditions.

This patch corrects the logic to continue the loop if parent cache entry
is present and does not match requested parent clock. In addition,
redundant checks for parent cache array presence are removed, because it
is always allocated in the beginning of the function.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
 drivers/clk/clk.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 63f9ac16dcb6..32e2fed6d143 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -1097,11 +1097,14 @@ static int clk_fetch_parent_index(struct clk *clk, struct clk *parent)
 	 * them now to avoid future calls to __clk_lookup.
 	 */
 	for (i = 0; i < clk->num_parents; i++) {
-		if (clk->parents && clk->parents[i] == parent)
+		if (clk->parents[i] == parent)
 			return i;
-		else if (!strcmp(clk->parent_names[i], parent->name)) {
-			if (clk->parents)
-				clk->parents[i] = __clk_lookup(parent->name);
+
+		if (clk->parents[i])
+			continue;
+
+		if (!strcmp(clk->parent_names[i], parent->name)) {
+			clk->parents[i] = __clk_lookup(parent->name);
 			return i;
 		}
 	}
-- 
cgit 


From 5f544cfac956971099e906f94568bc3fd1a7108a Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@daterainc.com>
Date: Mon, 23 Sep 2013 12:12:42 -0700
Subject: tcm_fc: Convert to per-cpu command map pre-allocation of ft_cmd

This patch converts tcm_fc to use transport_init_session_tags()
pre-allocation logic for struct ft_cmd descriptors using per-cpu
session tag pooling in order to effectively avoid memory allocation
+ release for each received I/O.

It adds percpu_ida_alloc() in ft_recv_cmd() to obtain an tag and
locate ft_cmd from se_sess->sess_cmd_map[], and percpu_ida_free()
in ft_free_cmd() to release the tag based upon se_cmd->map_tag id.

It also uses a TCM_FC_DEFAULT_TAGS value of 512, that puts the
per se_sess->sess_cmd_map allocation at ~360K on 64-bit.

v2 changes:

  - Handle possible tag < 0 failure with GFP_ATOMIC

Cc: Mark Rustad <mark.d.rustad@intel.com>
Cc: Robert Love <robert.w.love@intel.com>
Cc: Kent Overstreet <kmo@daterainc.com>
Signed-off-by: Nicholas Bellinger <nab@daterainc.com>
---
 drivers/target/tcm_fc/tcm_fc.h   |  1 +
 drivers/target/tcm_fc/tfc_cmd.c  | 18 ++++++++++++++----
 drivers/target/tcm_fc/tfc_sess.c |  3 ++-
 3 files changed, 17 insertions(+), 5 deletions(-)

diff --git a/drivers/target/tcm_fc/tcm_fc.h b/drivers/target/tcm_fc/tcm_fc.h
index 0dd54a44abcf..752863acecb8 100644
--- a/drivers/target/tcm_fc/tcm_fc.h
+++ b/drivers/target/tcm_fc/tcm_fc.h
@@ -22,6 +22,7 @@
 #define FT_NAMELEN 32		/* length of ASCII WWPNs including pad */
 #define FT_TPG_NAMELEN 32	/* max length of TPG name */
 #define FT_LUN_NAMELEN 32	/* max length of LUN name */
+#define TCM_FC_DEFAULT_TAGS 512	/* tags used for per-session preallocation */
 
 struct ft_transport_id {
 	__u8	format;
diff --git a/drivers/target/tcm_fc/tfc_cmd.c b/drivers/target/tcm_fc/tfc_cmd.c
index 0e5a1caed176..479ec5621a4e 100644
--- a/drivers/target/tcm_fc/tfc_cmd.c
+++ b/drivers/target/tcm_fc/tfc_cmd.c
@@ -28,6 +28,7 @@
 #include <linux/configfs.h>
 #include <linux/ctype.h>
 #include <linux/hash.h>
+#include <linux/percpu_ida.h>
 #include <asm/unaligned.h>
 #include <scsi/scsi.h>
 #include <scsi/scsi_host.h>
@@ -89,16 +90,18 @@ static void ft_free_cmd(struct ft_cmd *cmd)
 {
 	struct fc_frame *fp;
 	struct fc_lport *lport;
+	struct se_session *se_sess;
 
 	if (!cmd)
 		return;
+	se_sess = cmd->sess->se_sess;
 	fp = cmd->req_frame;
 	lport = fr_dev(fp);
 	if (fr_seq(fp))
 		lport->tt.seq_release(fr_seq(fp));
 	fc_frame_free(fp);
+	percpu_ida_free(&se_sess->sess_tag_pool, cmd->se_cmd.map_tag);
 	ft_sess_put(cmd->sess);	/* undo get from lookup at recv */
-	kfree(cmd);
 }
 
 void ft_release_cmd(struct se_cmd *se_cmd)
@@ -432,14 +435,21 @@ static void ft_recv_cmd(struct ft_sess *sess, struct fc_frame *fp)
 {
 	struct ft_cmd *cmd;
 	struct fc_lport *lport = sess->tport->lport;
+	struct se_session *se_sess = sess->se_sess;
+	int tag;
 
-	cmd = kzalloc(sizeof(*cmd), GFP_ATOMIC);
-	if (!cmd)
+	tag = percpu_ida_alloc(&se_sess->sess_tag_pool, GFP_ATOMIC);
+	if (tag < 0)
 		goto busy;
+
+	cmd = &((struct ft_cmd *)se_sess->sess_cmd_map)[tag];
+	memset(cmd, 0, sizeof(struct ft_cmd));
+
+	cmd->se_cmd.map_tag = tag;
 	cmd->sess = sess;
 	cmd->seq = lport->tt.seq_assign(lport, fp);
 	if (!cmd->seq) {
-		kfree(cmd);
+		percpu_ida_free(&se_sess->sess_tag_pool, tag);
 		goto busy;
 	}
 	cmd->req_frame = fp;		/* hold frame during cmd */
diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c
index 4859505ae2ed..ae52c08dad09 100644
--- a/drivers/target/tcm_fc/tfc_sess.c
+++ b/drivers/target/tcm_fc/tfc_sess.c
@@ -210,7 +210,8 @@ static struct ft_sess *ft_sess_create(struct ft_tport *tport, u32 port_id,
 	if (!sess)
 		return NULL;
 
-	sess->se_sess = transport_init_session();
+	sess->se_sess = transport_init_session_tags(TCM_FC_DEFAULT_TAGS,
+						    sizeof(struct ft_cmd));
 	if (IS_ERR(sess->se_sess)) {
 		kfree(sess);
 		return NULL;
-- 
cgit 


From e56e57f6613d5ed5c3127419341d1aa989a11971 Mon Sep 17 00:00:00 2001
From: Dave Jones <davej@redhat.com>
Date: Tue, 1 Oct 2013 16:36:55 -0400
Subject: x86/reboot: Sort reboot DMI quirks by vendor

Grouping them by vendor should make it easier to spot duplicates.

Signed-off-by: Dave Jones <davej@fedoraproject.org>
Link: http://lkml.kernel.org/r/20131001203655.GA10719@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/reboot.c | 260 +++++++++++++++++++++++++----------------------
 1 file changed, 136 insertions(+), 124 deletions(-)

diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index d9333a404685..76925208f50b 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -136,236 +136,248 @@ static int __init set_kbd_reboot(const struct dmi_system_id *d)
  * This is a single dmi_table handling all reboot quirks.
  */
 static struct dmi_system_id __initdata reboot_dmi_table[] = {
-	{	/* Handle problems with rebooting on Dell E520's */
-		.callback = set_bios_reboot,
-		.ident = "Dell E520",
+
+	/* Acer */
+	{	/* Handle reboot issue on Acer Aspire one */
+		.callback = set_kbd_reboot,
+		.ident = "Acer Aspire One A110",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Dell DM061"),
+			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
 		},
 	},
-	{	/* Handle problems with rebooting on Dell 1300's */
-		.callback = set_bios_reboot,
-		.ident = "Dell PowerEdge 1300",
+
+	/* Apple */
+	{	/* Handle problems with rebooting on Apple MacBook5 */
+		.callback = set_pci_reboot,
+		.ident = "Apple MacBook5",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1300/"),
+			DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "MacBook5"),
 		},
 	},
-	{	/* Handle problems with rebooting on Dell 300's */
-		.callback = set_bios_reboot,
-		.ident = "Dell PowerEdge 300",
+	{	/* Handle problems with rebooting on Apple MacBookPro5 */
+		.callback = set_pci_reboot,
+		.ident = "Apple MacBookPro5",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 300/"),
+			DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro5"),
 		},
 	},
-	{	/* Handle problems with rebooting on Dell Optiplex 745's SFF */
-		.callback = set_bios_reboot,
-		.ident = "Dell OptiPlex 745",
+	{	/* Handle problems with rebooting on Apple Macmini3,1 */
+		.callback = set_pci_reboot,
+		.ident = "Apple Macmini3,1",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 745"),
+			DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Macmini3,1"),
 		},
 	},
-	{	/* Handle problems with rebooting on Dell Optiplex 745's DFF */
-		.callback = set_bios_reboot,
-		.ident = "Dell OptiPlex 745",
+	{	/* Handle problems with rebooting on the iMac9,1. */
+		.callback = set_pci_reboot,
+		.ident = "Apple iMac9,1",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 745"),
-			DMI_MATCH(DMI_BOARD_NAME, "0MM599"),
+			DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "iMac9,1"),
 		},
 	},
-	{	/* Handle problems with rebooting on Dell Optiplex 745 with 0KW626 */
+
+	/* ASUS */
+	{	/* Handle problems with rebooting on ASUS P4S800 */
 		.callback = set_bios_reboot,
-		.ident = "Dell OptiPlex 745",
+		.ident = "ASUS P4S800",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 745"),
-			DMI_MATCH(DMI_BOARD_NAME, "0KW626"),
+			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
+			DMI_MATCH(DMI_BOARD_NAME, "P4S800"),
 		},
 	},
-	{	/* Handle problems with rebooting on Dell Optiplex 330 with 0KP561 */
+
+	/* Dell */
+	{	/* Handle problems with rebooting on Dell DXP061 */
 		.callback = set_bios_reboot,
-		.ident = "Dell OptiPlex 330",
+		.ident = "Dell DXP061",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 330"),
-			DMI_MATCH(DMI_BOARD_NAME, "0KP561"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Dell DXP061"),
 		},
 	},
-	{	/* Handle problems with rebooting on Dell Optiplex 360 with 0T656F */
+	{	/* Handle problems with rebooting on Dell E520's */
 		.callback = set_bios_reboot,
-		.ident = "Dell OptiPlex 360",
+		.ident = "Dell E520",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 360"),
-			DMI_MATCH(DMI_BOARD_NAME, "0T656F"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Dell DM061"),
 		},
 	},
-	{	/* Handle problems with rebooting on Dell OptiPlex 760 with 0G919G */
-		.callback = set_bios_reboot,
-		.ident = "Dell OptiPlex 760",
+	{	/* Handle problems with rebooting on the Latitude E5420. */
+		.callback = set_pci_reboot,
+		.ident = "Dell Latitude E5420",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 760"),
-			DMI_MATCH(DMI_BOARD_NAME, "0G919G"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Latitude E5420"),
 		},
 	},
-	{	/* Handle problems with rebooting on Dell 2400's */
-		.callback = set_bios_reboot,
-		.ident = "Dell PowerEdge 2400",
+	{	/* Handle problems with rebooting on the Latitude E6320. */
+		.callback = set_pci_reboot,
+		.ident = "Dell Latitude E6320",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 2400"),
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Latitude E6320"),
 		},
 	},
-	{	/* Handle problems with rebooting on Dell T5400's */
-		.callback = set_bios_reboot,
-		.ident = "Dell Precision T5400",
+	{	/* Handle problems with rebooting on the Latitude E6420. */
+		.callback = set_pci_reboot,
+		.ident = "Dell Latitude E6420",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Precision WorkStation T5400"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Latitude E6420"),
 		},
 	},
-	{	/* Handle problems with rebooting on Dell T7400's */
+	{	/* Handle problems with rebooting on Dell Optiplex 330 with 0KP561 */
 		.callback = set_bios_reboot,
-		.ident = "Dell Precision T7400",
+		.ident = "Dell OptiPlex 330",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Precision WorkStation T7400"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 330"),
+			DMI_MATCH(DMI_BOARD_NAME, "0KP561"),
 		},
 	},
-	{	/* Handle problems with rebooting on HP laptops */
+	{	/* Handle problems with rebooting on Dell Optiplex 360 with 0T656F */
 		.callback = set_bios_reboot,
-		.ident = "HP Compaq Laptop",
+		.ident = "Dell OptiPlex 360",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq"),
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 360"),
+			DMI_MATCH(DMI_BOARD_NAME, "0T656F"),
 		},
 	},
-	{	/* Handle problems with rebooting on Dell XPS710 */
+	{	/* Handle problems with rebooting on Dell Optiplex 745's SFF */
 		.callback = set_bios_reboot,
-		.ident = "Dell XPS710",
+		.ident = "Dell OptiPlex 745",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Dell XPS710"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 745"),
 		},
 	},
-	{	/* Handle problems with rebooting on Dell DXP061 */
+	{	/* Handle problems with rebooting on Dell Optiplex 745's DFF */
 		.callback = set_bios_reboot,
-		.ident = "Dell DXP061",
+		.ident = "Dell OptiPlex 745",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Dell DXP061"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 745"),
+			DMI_MATCH(DMI_BOARD_NAME, "0MM599"),
 		},
 	},
-	{	/* Handle problems with rebooting on Sony VGN-Z540N */
+	{	/* Handle problems with rebooting on Dell Optiplex 745 with 0KW626 */
 		.callback = set_bios_reboot,
-		.ident = "Sony VGN-Z540N",
+		.ident = "Dell OptiPlex 745",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "VGN-Z540N"),
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 745"),
+			DMI_MATCH(DMI_BOARD_NAME, "0KW626"),
 		},
 	},
-	{	/* Handle problems with rebooting on ASUS P4S800 */
+	{	/* Handle problems with rebooting on Dell OptiPlex 760 with 0G919G */
 		.callback = set_bios_reboot,
-		.ident = "ASUS P4S800",
+		.ident = "Dell OptiPlex 760",
 		.matches = {
-			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
-			DMI_MATCH(DMI_BOARD_NAME, "P4S800"),
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 760"),
+			DMI_MATCH(DMI_BOARD_NAME, "0G919G"),
 		},
 	},
-
-	{	/* Handle reboot issue on Acer Aspire one */
-		.callback = set_kbd_reboot,
-		.ident = "Acer Aspire One A110",
+	{	/* Handle problems with rebooting on the OptiPlex 990. */
+		.callback = set_pci_reboot,
+		.ident = "Dell OptiPlex 990",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "AOA110"),
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 990"),
 		},
 	},
-	{	/* Handle problems with rebooting on Apple MacBook5 */
-		.callback = set_pci_reboot,
-		.ident = "Apple MacBook5",
+	{	/* Handle problems with rebooting on Dell 300's */
+		.callback = set_bios_reboot,
+		.ident = "Dell PowerEdge 300",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "MacBook5"),
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 300/"),
 		},
 	},
-	{	/* Handle problems with rebooting on Apple MacBookPro5 */
-		.callback = set_pci_reboot,
-		.ident = "Apple MacBookPro5",
+	{	/* Handle problems with rebooting on Dell 1300's */
+		.callback = set_bios_reboot,
+		.ident = "Dell PowerEdge 1300",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro5"),
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1300/"),
 		},
 	},
-	{	/* Handle problems with rebooting on Apple Macmini3,1 */
-		.callback = set_pci_reboot,
-		.ident = "Apple Macmini3,1",
+	{	/* Handle problems with rebooting on Dell 2400's */
+		.callback = set_bios_reboot,
+		.ident = "Dell PowerEdge 2400",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Macmini3,1"),
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 2400"),
 		},
 	},
-	{	/* Handle problems with rebooting on the iMac9,1. */
+	{	/* Handle problems with rebooting on the Dell PowerEdge C6100. */
 		.callback = set_pci_reboot,
-		.ident = "Apple iMac9,1",
+		.ident = "Dell PowerEdge C6100",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "iMac9,1"),
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "C6100"),
 		},
 	},
-	{	/* Handle problems with rebooting on the Latitude E6320. */
+	{	/* Handle problems with rebooting on the Precision M6600. */
 		.callback = set_pci_reboot,
-		.ident = "Dell Latitude E6320",
+		.ident = "Dell Precision M6600",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Latitude E6320"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Precision M6600"),
 		},
 	},
-	{	/* Handle problems with rebooting on the Latitude E5420. */
-		.callback = set_pci_reboot,
-		.ident = "Dell Latitude E5420",
+	{	/* Handle problems with rebooting on Dell T5400's */
+		.callback = set_bios_reboot,
+		.ident = "Dell Precision T5400",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Latitude E5420"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Precision WorkStation T5400"),
 		},
 	},
-	{	/* Handle problems with rebooting on the Latitude E6420. */
-		.callback = set_pci_reboot,
-		.ident = "Dell Latitude E6420",
+	{	/* Handle problems with rebooting on Dell T7400's */
+		.callback = set_bios_reboot,
+		.ident = "Dell Precision T7400",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Latitude E6420"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Precision WorkStation T7400"),
 		},
 	},
-	{	/* Handle problems with rebooting on the OptiPlex 990. */
-		.callback = set_pci_reboot,
-		.ident = "Dell OptiPlex 990",
+	{	/* Handle problems with rebooting on Dell XPS710 */
+		.callback = set_bios_reboot,
+		.ident = "Dell XPS710",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 990"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Dell XPS710"),
 		},
 	},
-	{	/* Handle problems with rebooting on the Precision M6600. */
-		.callback = set_pci_reboot,
-		.ident = "Dell Precision M6600",
+
+	/* Hewlett-Packard */
+	{	/* Handle problems with rebooting on HP laptops */
+		.callback = set_bios_reboot,
+		.ident = "HP Compaq Laptop",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Precision M6600"),
+			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq"),
 		},
 	},
-	{	/* Handle problems with rebooting on the Dell PowerEdge C6100. */
-		.callback = set_pci_reboot,
-		.ident = "Dell PowerEdge C6100",
+
+	/* Sony */
+	{	/* Handle problems with rebooting on Sony VGN-Z540N */
+		.callback = set_bios_reboot,
+		.ident = "Sony VGN-Z540N",
 		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "C6100"),
+			DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "VGN-Z540N"),
 		},
 	},
+
 	{ }
 };
 
-- 
cgit 


From 60f2a3ed7beb2e9b8f2c63de0895f587e0c1ca76 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 1 Oct 2013 22:59:20 -0700
Subject: Bluetooth: Use only 2 bits for controller type information

The controller type is limited to BR/EDR/LE and AMP controllers. This
can be easily encoded with just 2 bits and still leave enough room
for future controller types.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 4549b5cbfac5..dd2528c5b6bc 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1610,7 +1610,7 @@ int hci_get_dev_info(void __user *arg)
 
 	strcpy(di.name, hdev->name);
 	di.bdaddr   = hdev->bdaddr;
-	di.type     = (hdev->bus & 0x0f) | (hdev->dev_type << 4);
+	di.type     = (hdev->bus & 0x0f) | ((hdev->dev_type & 0x03) << 4);
 	di.flags    = hdev->flags;
 	di.pkt_type = hdev->pkt_type;
 	if (lmp_bredr_capable(hdev)) {
-- 
cgit 


From a59ac2f7447d8a4202f29ade1af785212d12b1d1 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 1 Oct 2013 22:59:21 -0700
Subject: Bluetooth: Replace BDADDR_LOCAL with BDADDR_NONE

The BDADDR_LOCAL is a relict from userspace and has never been used
within the kernel. So remove that constant and replace it with a new
BDADDR_NONE that is similar to HCI_DEV_NONE with all bits set.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/bluetooth.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index afbc711ba37a..5fd510675cfa 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -197,8 +197,8 @@ static inline bool bdaddr_type_is_le(__u8 type)
 	return false;
 }
 
-#define BDADDR_ANY   (&(bdaddr_t) {{0, 0, 0, 0, 0, 0} })
-#define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff} })
+#define BDADDR_ANY  (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
+#define BDADDR_NONE (&(bdaddr_t) {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff}})
 
 /* Copy, swap, convert BD Address */
 static inline int bacmp(const bdaddr_t *ba1, const bdaddr_t *ba2)
-- 
cgit 


From 848566b381e72b07e41beffde677955ae1498153 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 1 Oct 2013 22:59:22 -0700
Subject: Bluetooth: Provide high speed configuration option

Hiding the Bluetooth high speed support behind a module parameter is
not really useful. This can be enabled and disabled at runtime via
the management interface. This also has the advantage that this can
now be changed per controller and not just global.

This patch removes the module parameter and exposes the high speed
setting of the management interface to all controllers.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/l2cap.h |  1 +
 net/bluetooth/hci_core.c      |  6 ------
 net/bluetooth/l2cap_core.c    | 35 +++++++++++++++++++----------------
 net/bluetooth/l2cap_sock.c    | 10 ----------
 net/bluetooth/mgmt.c          | 11 ++---------
 5 files changed, 22 insertions(+), 41 deletions(-)

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 1a966afbbfa8..f141b5f6e4f1 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -564,6 +564,7 @@ struct l2cap_conn {
 
 	__u32			feat_mask;
 	__u8			fixed_chan_mask;
+	bool			hs_enabled;
 
 	__u8			info_state;
 	__u8			info_ident;
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index dd2528c5b6bc..750c360f96db 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1222,12 +1222,6 @@ int hci_dev_open(__u16 dev)
 		ret = hdev->setup(hdev);
 
 	if (!ret) {
-		/* Treat all non BR/EDR controllers as raw devices if
-		 * enable_hs is not set.
-		 */
-		if (hdev->dev_type != HCI_BREDR && !enable_hs)
-			set_bit(HCI_RAW, &hdev->flags);
-
 		if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
 			set_bit(HCI_RAW, &hdev->flags);
 
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index d1f1e78d1140..6d42498e862b 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1016,13 +1016,12 @@ static bool __amp_capable(struct l2cap_chan *chan)
 {
 	struct l2cap_conn *conn = chan->conn;
 
-	if (enable_hs &&
-	    hci_amp_capable() &&
+	if (conn->hs_enabled && hci_amp_capable() &&
 	    chan->chan_policy == BT_CHANNEL_POLICY_AMP_PREFERRED &&
 	    conn->fixed_chan_mask & L2CAP_FC_A2MP)
 		return true;
-	else
-		return false;
+
+	return false;
 }
 
 static bool l2cap_check_efs(struct l2cap_chan *chan)
@@ -1638,6 +1637,10 @@ static struct l2cap_conn *l2cap_conn_add(struct hci_conn *hcon)
 
 	conn->feat_mask = 0;
 
+	if (hcon->type == ACL_LINK)
+		conn->hs_enabled = test_bit(HCI_HS_ENABLED,
+					    &hcon->hdev->dev_flags);
+
 	spin_lock_init(&conn->lock);
 	mutex_init(&conn->chan_lock);
 
@@ -3084,14 +3087,14 @@ static inline __u8 l2cap_select_mode(__u8 mode, __u16 remote_feat_mask)
 	}
 }
 
-static inline bool __l2cap_ews_supported(struct l2cap_chan *chan)
+static inline bool __l2cap_ews_supported(struct l2cap_conn *conn)
 {
-	return enable_hs && chan->conn->feat_mask & L2CAP_FEAT_EXT_WINDOW;
+	return conn->hs_enabled && conn->feat_mask & L2CAP_FEAT_EXT_WINDOW;
 }
 
-static inline bool __l2cap_efs_supported(struct l2cap_chan *chan)
+static inline bool __l2cap_efs_supported(struct l2cap_conn *conn)
 {
-	return enable_hs && chan->conn->feat_mask & L2CAP_FEAT_EXT_FLOW;
+	return conn->hs_enabled && conn->feat_mask & L2CAP_FEAT_EXT_FLOW;
 }
 
 static void __l2cap_set_ertm_timeouts(struct l2cap_chan *chan,
@@ -3135,7 +3138,7 @@ static void __l2cap_set_ertm_timeouts(struct l2cap_chan *chan,
 static inline void l2cap_txwin_setup(struct l2cap_chan *chan)
 {
 	if (chan->tx_win > L2CAP_DEFAULT_TX_WINDOW &&
-	    __l2cap_ews_supported(chan)) {
+	    __l2cap_ews_supported(chan->conn)) {
 		/* use extended control field */
 		set_bit(FLAG_EXT_CTRL, &chan->flags);
 		chan->tx_win_max = L2CAP_DEFAULT_EXT_WINDOW;
@@ -3165,7 +3168,7 @@ static int l2cap_build_conf_req(struct l2cap_chan *chan, void *data)
 		if (test_bit(CONF_STATE2_DEVICE, &chan->conf_state))
 			break;
 
-		if (__l2cap_efs_supported(chan))
+		if (__l2cap_efs_supported(chan->conn))
 			set_bit(FLAG_EFS_ENABLE, &chan->flags);
 
 		/* fall through */
@@ -3317,7 +3320,7 @@ static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data)
 			break;
 
 		case L2CAP_CONF_EWS:
-			if (!enable_hs)
+			if (!chan->conn->hs_enabled)
 				return -ECONNREFUSED;
 
 			set_bit(FLAG_EXT_CTRL, &chan->flags);
@@ -3349,7 +3352,7 @@ static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data)
 		}
 
 		if (remote_efs) {
-			if (__l2cap_efs_supported(chan))
+			if (__l2cap_efs_supported(chan->conn))
 				set_bit(FLAG_EFS_ENABLE, &chan->flags);
 			else
 				return -ECONNREFUSED;
@@ -4303,7 +4306,7 @@ static inline int l2cap_information_req(struct l2cap_conn *conn,
 		if (!disable_ertm)
 			feat_mask |= L2CAP_FEAT_ERTM | L2CAP_FEAT_STREAMING
 				| L2CAP_FEAT_FCS;
-		if (enable_hs)
+		if (conn->hs_enabled)
 			feat_mask |= L2CAP_FEAT_EXT_FLOW
 				| L2CAP_FEAT_EXT_WINDOW;
 
@@ -4314,7 +4317,7 @@ static inline int l2cap_information_req(struct l2cap_conn *conn,
 		u8 buf[12];
 		struct l2cap_info_rsp *rsp = (struct l2cap_info_rsp *) buf;
 
-		if (enable_hs)
+		if (conn->hs_enabled)
 			l2cap_fixed_chan[0] |= L2CAP_FC_A2MP;
 		else
 			l2cap_fixed_chan[0] &= ~L2CAP_FC_A2MP;
@@ -4411,7 +4414,7 @@ static int l2cap_create_channel_req(struct l2cap_conn *conn,
 	if (cmd_len != sizeof(*req))
 		return -EPROTO;
 
-	if (!enable_hs)
+	if (!conn->hs_enabled)
 		return -EINVAL;
 
 	psm = le16_to_cpu(req->psm);
@@ -4838,7 +4841,7 @@ static inline int l2cap_move_channel_req(struct l2cap_conn *conn,
 
 	BT_DBG("icid 0x%4.4x, dest_amp_id %d", icid, req->dest_amp_id);
 
-	if (!enable_hs)
+	if (!conn->hs_enabled)
 		return -EINVAL;
 
 	chan = l2cap_get_chan_by_dcid(conn, icid);
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index c85537ca1a23..9119898ef040 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -445,11 +445,6 @@ static int l2cap_sock_getsockopt(struct socket *sock, int level, int optname,
 		break;
 
 	case BT_CHANNEL_POLICY:
-		if (!enable_hs) {
-			err = -ENOPROTOOPT;
-			break;
-		}
-
 		if (put_user(chan->chan_policy, (u32 __user *) optval))
 			err = -EFAULT;
 		break;
@@ -720,11 +715,6 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 		break;
 
 	case BT_CHANNEL_POLICY:
-		if (!enable_hs) {
-			err = -ENOPROTOOPT;
-			break;
-		}
-
 		if (get_user(opt, (u32 __user *) optval)) {
 			err = -EFAULT;
 			break;
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 1b5b10fab545..dd15491f2374 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -32,8 +32,6 @@
 #include <net/bluetooth/mgmt.h>
 #include <net/bluetooth/smp.h>
 
-bool enable_hs;
-
 #define MGMT_VERSION	1
 #define MGMT_REVISION	3
 
@@ -380,10 +378,8 @@ static u32 get_supported_settings(struct hci_dev *hdev)
 		settings |= MGMT_SETTING_DISCOVERABLE;
 		settings |= MGMT_SETTING_BREDR;
 		settings |= MGMT_SETTING_LINK_SECURITY;
-	}
-
-	if (enable_hs)
 		settings |= MGMT_SETTING_HS;
+	}
 
 	if (lmp_le_capable(hdev)) {
 		settings |= MGMT_SETTING_LE;
@@ -1344,7 +1340,7 @@ static int set_hs(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 
 	BT_DBG("request for %s", hdev->name);
 
-	if (!enable_hs)
+	if (!lmp_bredr_capable(hdev))
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
 				  MGMT_STATUS_NOT_SUPPORTED);
 
@@ -4396,6 +4392,3 @@ int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
 	return mgmt_event(MGMT_EV_DEVICE_UNBLOCKED, hdev, &ev, sizeof(ev),
 			  cmd ? cmd->sk : NULL);
 }
-
-module_param(enable_hs, bool, 0644);
-MODULE_PARM_DESC(enable_hs, "Enable High Speed support");
-- 
cgit 


From ee39269369eaada5daae7fabb69bc03429e23bc7 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 1 Oct 2013 22:59:23 -0700
Subject: Bluetooth: Send new settings event when changing high speed option

When enabling or disabling high speed setting it is required to send
a new settings event to inform other management interface users about
the changed settings.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index dd15491f2374..ad3862949a2c 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1337,6 +1337,8 @@ failed:
 static int set_hs(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 {
 	struct mgmt_mode *cp = data;
+	bool changed;
+	int err;
 
 	BT_DBG("request for %s", hdev->name);
 
@@ -1348,12 +1350,23 @@ static int set_hs(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
 				  MGMT_STATUS_INVALID_PARAMS);
 
+	hci_dev_lock(hdev);
+
 	if (cp->val)
-		set_bit(HCI_HS_ENABLED, &hdev->dev_flags);
+		changed = !test_and_set_bit(HCI_HS_ENABLED, &hdev->dev_flags);
 	else
-		clear_bit(HCI_HS_ENABLED, &hdev->dev_flags);
+		changed = test_and_clear_bit(HCI_HS_ENABLED, &hdev->dev_flags);
+
+	err = send_settings_rsp(sk, MGMT_OP_SET_HS, hdev);
+	if (err < 0)
+		goto unlock;
 
-	return send_settings_rsp(sk, MGMT_OP_SET_HS, hdev);
+	if (changed)
+		err = new_settings(hdev, sk);
+
+unlock:
+	hci_dev_unlock(hdev);
+	return err;
 }
 
 static void le_enable_complete(struct hci_dev *hdev, u8 status)
-- 
cgit 


From 10a8b86f575235258bdf195e4503f2c2ddfd2e26 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 1 Oct 2013 22:59:24 -0700
Subject: Bluetooth: Require CAP_NET_ADMIN for HCI User Channel operation

The HCI User Channel operation is an admin operation that puts the
device into promiscuous mode for single use. It is more suitable
to require CAP_NET_ADMIN than CAP_NET_RAW.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_sock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index c09e97638065..579886186c3a 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -687,7 +687,7 @@ static int hci_sock_bind(struct socket *sock, struct sockaddr *addr,
 			goto done;
 		}
 
-		if (!capable(CAP_NET_RAW)) {
+		if (!capable(CAP_NET_ADMIN)) {
 			err = -EPERM;
 			goto done;
 		}
-- 
cgit 


From 922ca1dfc2127a5dc363e8c1e6c8a33c5a0a14c6 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 1 Oct 2013 22:59:25 -0700
Subject: Bluetooth: Enable -D__CHECK_ENDIAN__ for sparse by default

The Bluetooth protocol and hardware is pretty much all little endian
and so when running sparse via "make C=2" for example, enable the
endian checks by default.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/Makefile | 2 ++
 net/bluetooth/Makefile     | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/bluetooth/Makefile b/drivers/bluetooth/Makefile
index 4afae20df512..9fe8a875a827 100644
--- a/drivers/bluetooth/Makefile
+++ b/drivers/bluetooth/Makefile
@@ -30,3 +30,5 @@ hci_uart-$(CONFIG_BT_HCIUART_LL)	+= hci_ll.o
 hci_uart-$(CONFIG_BT_HCIUART_ATH3K)	+= hci_ath.o
 hci_uart-$(CONFIG_BT_HCIUART_3WIRE)	+= hci_h5.o
 hci_uart-objs				:= $(hci_uart-y)
+
+ccflags-y += -D__CHECK_ENDIAN__
diff --git a/net/bluetooth/Makefile b/net/bluetooth/Makefile
index dea6a287daca..6a791e73e39d 100644
--- a/net/bluetooth/Makefile
+++ b/net/bluetooth/Makefile
@@ -11,3 +11,5 @@ obj-$(CONFIG_BT_HIDP)	+= hidp/
 bluetooth-y := af_bluetooth.o hci_core.o hci_conn.o hci_event.o mgmt.o \
 	hci_sock.o hci_sysfs.o l2cap_core.o l2cap_sock.o smp.o sco.o lib.o \
 	a2mp.o amp.o
+
+subdir-ccflags-y += -D__CHECK_ENDIAN__
-- 
cgit 


From cbed0ca137ef442c545602a09030bbb35d8db013 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Tue, 1 Oct 2013 22:44:49 +0300
Subject: Bluetooth: Refactor hci_dev_open to a separate hci_dev_do_open
 function

The requirements of an external call to hci_dev_open from hci_sock.c are
different to that from within hci_core.c. In the former case we want to
flush any pending work in hdev->req_workqueue whereas in the latter we
don't (since there we are already calling from within the workqueue
itself). This patch does the necessary refactoring to a separate
hci_dev_do_open function (analogous to hci_dev_do_close) but does not
yet introduce the synchronizations relating to the workqueue usage.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/hci_core.c | 30 ++++++++++++++++++++----------
 1 file changed, 20 insertions(+), 10 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 750c360f96db..1bc43249d5a3 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1176,17 +1176,10 @@ void hci_update_ad(struct hci_request *req)
 	hci_req_add(req, HCI_OP_LE_SET_ADV_DATA, sizeof(cp), &cp);
 }
 
-/* ---- HCI ioctl helpers ---- */
-
-int hci_dev_open(__u16 dev)
+static int hci_dev_do_open(struct hci_dev *hdev)
 {
-	struct hci_dev *hdev;
 	int ret = 0;
 
-	hdev = hci_dev_get(dev);
-	if (!hdev)
-		return -ENODEV;
-
 	BT_DBG("%s %p", hdev->name, hdev);
 
 	hci_req_lock(hdev);
@@ -1266,10 +1259,27 @@ int hci_dev_open(__u16 dev)
 
 done:
 	hci_req_unlock(hdev);
-	hci_dev_put(hdev);
 	return ret;
 }
 
+/* ---- HCI ioctl helpers ---- */
+
+int hci_dev_open(__u16 dev)
+{
+	struct hci_dev *hdev;
+	int err;
+
+	hdev = hci_dev_get(dev);
+	if (!hdev)
+		return -ENODEV;
+
+	err = hci_dev_do_open(hdev);
+
+	hci_dev_put(hdev);
+
+	return err;
+}
+
 static int hci_dev_do_close(struct hci_dev *hdev)
 {
 	BT_DBG("%s %p", hdev->name, hdev);
@@ -1665,7 +1675,7 @@ static void hci_power_on(struct work_struct *work)
 
 	BT_DBG("%s", hdev->name);
 
-	err = hci_dev_open(hdev->id);
+	err = hci_dev_do_open(hdev);
 	if (err < 0) {
 		mgmt_set_powered_failed(hdev, err);
 		return;
-- 
cgit 


From e1d08f406792219ace03aa02e53a6946abc15ec8 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Tue, 1 Oct 2013 22:44:50 +0300
Subject: Bluetooth: Fix workqueue synchronization in hci_dev_open

When hci_sock.c calls hci_dev_open it needs to ensure that there isn't
pending work in progress, such as that which is scheduled for the
initial setup procedure or the one for automatically powering off after
the setup procedure. This adds the necessary calls to ensure that any
previously scheduled work is completed before attempting to call
hci_dev_do_open.

This patch fixes a race with old user space versions where we might
receive a HCIDEVUP ioctl before the setup procedure has been completed.
When that happens the setup procedures callback may fail early and leave
the device in an inconsistent state, causing e.g. the setup callback to
be (incorrectly) called more than once.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/hci_core.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 1bc43249d5a3..7cbdd33d9b38 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1273,6 +1273,16 @@ int hci_dev_open(__u16 dev)
 	if (!hdev)
 		return -ENODEV;
 
+	/* We need to ensure that no other power on/off work is pending
+	 * before proceeding to call hci_dev_do_open. This is
+	 * particularly important if the setup procedure has not yet
+	 * completed.
+	 */
+	if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags))
+		cancel_delayed_work(&hdev->power_off);
+
+	flush_workqueue(hdev->req_workqueue);
+
 	err = hci_dev_do_open(hdev);
 
 	hci_dev_put(hdev);
-- 
cgit 


From c037874ca291a47b863c0732aac0dda98cda66c7 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Tue, 1 Oct 2013 12:19:12 -0700
Subject: Bluetooth: btmrvl: add btmrvl_send_sync_cmd() function

Command preparation code is used multiple times. This patch
separate out this common code and create btmrvl_send_sync_cmd()
function.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 drivers/bluetooth/btmrvl_main.c | 129 +++++++++++++---------------------------
 1 file changed, 41 insertions(+), 88 deletions(-)

diff --git a/drivers/bluetooth/btmrvl_main.c b/drivers/bluetooth/btmrvl_main.c
index 9a9f51875df5..d9d42295e533 100644
--- a/drivers/bluetooth/btmrvl_main.c
+++ b/drivers/bluetooth/btmrvl_main.c
@@ -57,8 +57,7 @@ bool btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb)
 		ocf = hci_opcode_ocf(opcode);
 		ogf = hci_opcode_ogf(opcode);
 
-		if (ocf == BT_CMD_MODULE_CFG_REQ &&
-					priv->btmrvl_dev.sendcmdflag) {
+		if (priv->btmrvl_dev.sendcmdflag) {
 			priv->btmrvl_dev.sendcmdflag = false;
 			priv->adapter->cmd_complete = true;
 			wake_up_interruptible(&priv->adapter->cmd_wait_q);
@@ -116,7 +115,6 @@ int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb)
 			adapter->hs_state = HS_ACTIVATED;
 			if (adapter->psmode)
 				adapter->ps_state = PS_SLEEP;
-			wake_up_interruptible(&adapter->cmd_wait_q);
 			BT_DBG("HS ACTIVATED!");
 		} else {
 			BT_DBG("HS Enable failed");
@@ -168,11 +166,11 @@ exit:
 }
 EXPORT_SYMBOL_GPL(btmrvl_process_event);
 
-int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd)
+static int btmrvl_send_sync_cmd(struct btmrvl_private *priv, u16 cmd_no,
+				const void *param, u8 len)
 {
 	struct sk_buff *skb;
 	struct btmrvl_cmd *cmd;
-	int ret = 0;
 
 	skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
 	if (skb == NULL) {
@@ -181,9 +179,11 @@ int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd)
 	}
 
 	cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
-	cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_MODULE_CFG_REQ));
-	cmd->length = 1;
-	cmd->data[0] = subcmd;
+	cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, cmd_no));
+	cmd->length = len;
+
+	if (len)
+		memcpy(cmd->data, param, len);
 
 	bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
 
@@ -194,19 +194,23 @@ int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd)
 
 	priv->adapter->cmd_complete = false;
 
-	BT_DBG("Queue module cfg Command");
-
 	wake_up_interruptible(&priv->main_thread.wait_q);
 
 	if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q,
 				priv->adapter->cmd_complete,
-				msecs_to_jiffies(WAIT_UNTIL_CMD_RESP))) {
-		ret = -ETIMEDOUT;
-		BT_ERR("module_cfg_cmd(%x): timeout: %d",
-					subcmd, priv->btmrvl_dev.sendcmdflag);
-	}
+				msecs_to_jiffies(WAIT_UNTIL_CMD_RESP)))
+		return -ETIMEDOUT;
 
-	BT_DBG("module cfg Command done");
+	return 0;
+}
+
+int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd)
+{
+	int ret;
+
+	ret = btmrvl_send_sync_cmd(priv, BT_CMD_MODULE_CFG_REQ, &subcmd, 1);
+	if (ret)
+		BT_ERR("module_cfg_cmd(%x) failed\n", subcmd);
 
 	return ret;
 }
@@ -214,61 +218,36 @@ EXPORT_SYMBOL_GPL(btmrvl_send_module_cfg_cmd);
 
 int btmrvl_send_hscfg_cmd(struct btmrvl_private *priv)
 {
-	struct sk_buff *skb;
-	struct btmrvl_cmd *cmd;
-
-	skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
-	if (!skb) {
-		BT_ERR("No free skb");
-		return -ENOMEM;
-	}
-
-	cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
-	cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF,
-						   BT_CMD_HOST_SLEEP_CONFIG));
-	cmd->length = 2;
-	cmd->data[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8;
-	cmd->data[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff);
+	int ret;
+	u8 param[2];
 
-	bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
+	param[0] = (priv->btmrvl_dev.gpio_gap & 0xff00) >> 8;
+	param[1] = (u8) (priv->btmrvl_dev.gpio_gap & 0x00ff);
 
-	skb->dev = (void *) priv->btmrvl_dev.hcidev;
-	skb_queue_head(&priv->adapter->tx_queue, skb);
+	BT_DBG("Sending HSCFG Command, gpio=0x%x, gap=0x%x",
+	       param[0], param[1]);
 
-	BT_DBG("Queue HSCFG Command, gpio=0x%x, gap=0x%x", cmd->data[0],
-	       cmd->data[1]);
+	ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_CONFIG, param, 2);
+	if (ret)
+		BT_ERR("HSCFG command failed\n");
 
-	return 0;
+	return ret;
 }
 EXPORT_SYMBOL_GPL(btmrvl_send_hscfg_cmd);
 
 int btmrvl_enable_ps(struct btmrvl_private *priv)
 {
-	struct sk_buff *skb;
-	struct btmrvl_cmd *cmd;
-
-	skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
-	if (skb == NULL) {
-		BT_ERR("No free skb");
-		return -ENOMEM;
-	}
-
-	cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
-	cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF,
-					BT_CMD_AUTO_SLEEP_MODE));
-	cmd->length = 1;
+	int ret;
+	u8 param;
 
 	if (priv->btmrvl_dev.psmode)
-		cmd->data[0] = BT_PS_ENABLE;
+		param = BT_PS_ENABLE;
 	else
-		cmd->data[0] = BT_PS_DISABLE;
-
-	bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
-
-	skb->dev = (void *) priv->btmrvl_dev.hcidev;
-	skb_queue_head(&priv->adapter->tx_queue, skb);
+		param = BT_PS_DISABLE;
 
-	BT_DBG("Queue PSMODE Command:%d", cmd->data[0]);
+	ret = btmrvl_send_sync_cmd(priv, BT_CMD_AUTO_SLEEP_MODE, &param, 1);
+	if (ret)
+		BT_ERR("PSMODE command failed\n");
 
 	return 0;
 }
@@ -276,37 +255,11 @@ EXPORT_SYMBOL_GPL(btmrvl_enable_ps);
 
 int btmrvl_enable_hs(struct btmrvl_private *priv)
 {
-	struct sk_buff *skb;
-	struct btmrvl_cmd *cmd;
-	int ret = 0;
-
-	skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
-	if (skb == NULL) {
-		BT_ERR("No free skb");
-		return -ENOMEM;
-	}
-
-	cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
-	cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, BT_CMD_HOST_SLEEP_ENABLE));
-	cmd->length = 0;
-
-	bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
-
-	skb->dev = (void *) priv->btmrvl_dev.hcidev;
-	skb_queue_head(&priv->adapter->tx_queue, skb);
-
-	BT_DBG("Queue hs enable Command");
-
-	wake_up_interruptible(&priv->main_thread.wait_q);
+	int ret;
 
-	if (!wait_event_interruptible_timeout(priv->adapter->cmd_wait_q,
-			priv->adapter->hs_state,
-			msecs_to_jiffies(WAIT_UNTIL_HS_STATE_CHANGED))) {
-		ret = -ETIMEDOUT;
-		BT_ERR("timeout: %d, %d,%d", priv->adapter->hs_state,
-						priv->adapter->ps_state,
-						priv->adapter->wakeup_tries);
-	}
+	ret = btmrvl_send_sync_cmd(priv, BT_CMD_HOST_SLEEP_ENABLE, NULL, 0);
+	if (ret)
+		BT_ERR("Host sleep enable command failed\n");
 
 	return ret;
 }
-- 
cgit 


From 7d5b400cb0018bd23f643adbd413e5e77cce6409 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Tue, 1 Oct 2013 12:19:13 -0700
Subject: Bluetooth: btmrvl: get rid of struct btmrvl_cmd

Replace this proprietary structure with the standard one
(struct hci_command_hdr).

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 drivers/bluetooth/btmrvl_drv.h  |  6 ------
 drivers/bluetooth/btmrvl_main.c | 12 ++++++------
 2 files changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/bluetooth/btmrvl_drv.h b/drivers/bluetooth/btmrvl_drv.h
index 27068d149380..42f7028d3890 100644
--- a/drivers/bluetooth/btmrvl_drv.h
+++ b/drivers/bluetooth/btmrvl_drv.h
@@ -116,12 +116,6 @@ struct btmrvl_private {
 #define PS_SLEEP			0x01
 #define PS_AWAKE			0x00
 
-struct btmrvl_cmd {
-	__le16 ocf_ogf;
-	u8 length;
-	u8 data[4];
-} __packed;
-
 struct btmrvl_event {
 	u8 ec;		/* event counter */
 	u8 length;
diff --git a/drivers/bluetooth/btmrvl_main.c b/drivers/bluetooth/btmrvl_main.c
index d9d42295e533..a4da7c830b12 100644
--- a/drivers/bluetooth/btmrvl_main.c
+++ b/drivers/bluetooth/btmrvl_main.c
@@ -170,20 +170,20 @@ static int btmrvl_send_sync_cmd(struct btmrvl_private *priv, u16 cmd_no,
 				const void *param, u8 len)
 {
 	struct sk_buff *skb;
-	struct btmrvl_cmd *cmd;
+	struct hci_command_hdr *hdr;
 
-	skb = bt_skb_alloc(sizeof(*cmd), GFP_ATOMIC);
+	skb = bt_skb_alloc(HCI_COMMAND_HDR_SIZE + len, GFP_ATOMIC);
 	if (skb == NULL) {
 		BT_ERR("No free skb");
 		return -ENOMEM;
 	}
 
-	cmd = (struct btmrvl_cmd *) skb_put(skb, sizeof(*cmd));
-	cmd->ocf_ogf = cpu_to_le16(hci_opcode_pack(OGF, cmd_no));
-	cmd->length = len;
+	hdr = (struct hci_command_hdr *)skb_put(skb, HCI_COMMAND_HDR_SIZE);
+	hdr->opcode = cpu_to_le16(hci_opcode_pack(OGF, cmd_no));
+	hdr->plen = len;
 
 	if (len)
-		memcpy(cmd->data, param, len);
+		memcpy(skb_put(skb, len), param, len);
 
 	bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
 
-- 
cgit 


From 4b245722cabc6ee6d56924f10944b14a725ffd61 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Tue, 1 Oct 2013 12:19:14 -0700
Subject: Bluetooth: btmrvl: add setup handler

Move initialization code to hdev's setup handler.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 drivers/bluetooth/btmrvl_main.c | 18 ++++++++++++++++--
 drivers/bluetooth/btmrvl_sdio.c |  6 ------
 2 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/drivers/bluetooth/btmrvl_main.c b/drivers/bluetooth/btmrvl_main.c
index a4da7c830b12..e0ae1f4ea406 100644
--- a/drivers/bluetooth/btmrvl_main.c
+++ b/drivers/bluetooth/btmrvl_main.c
@@ -432,6 +432,21 @@ static int btmrvl_open(struct hci_dev *hdev)
 	return 0;
 }
 
+static int btmrvl_setup(struct hci_dev *hdev)
+{
+	struct btmrvl_private *priv = hci_get_drvdata(hdev);
+
+	btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ);
+
+	priv->btmrvl_dev.psmode = 1;
+	btmrvl_enable_ps(priv);
+
+	priv->btmrvl_dev.gpio_gap = 0xffff;
+	btmrvl_send_hscfg_cmd(priv);
+
+	return 0;
+}
+
 /*
  * This function handles the event generated by firmware, rx data
  * received from firmware, and tx data sent from kernel.
@@ -525,8 +540,7 @@ int btmrvl_register_hdev(struct btmrvl_private *priv)
 	hdev->flush = btmrvl_flush;
 	hdev->send = btmrvl_send_frame;
 	hdev->ioctl = btmrvl_ioctl;
-
-	btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ);
+	hdev->setup = btmrvl_setup;
 
 	hdev->dev_type = priv->btmrvl_dev.dev_type;
 
diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c
index 00da6df9f71e..5b70bcb38a5e 100644
--- a/drivers/bluetooth/btmrvl_sdio.c
+++ b/drivers/bluetooth/btmrvl_sdio.c
@@ -1046,12 +1046,6 @@ static int btmrvl_sdio_probe(struct sdio_func *func,
 		goto disable_host_int;
 	}
 
-	priv->btmrvl_dev.psmode = 1;
-	btmrvl_enable_ps(priv);
-
-	priv->btmrvl_dev.gpio_gap = 0xffff;
-	btmrvl_send_hscfg_cmd(priv);
-
 	return 0;
 
 disable_host_int:
-- 
cgit 


From 2cc8689028cd077e3e9cb9a192b1bb524fe38935 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Tue, 1 Oct 2013 12:19:15 -0700
Subject: Bluetooth: btmrvl: add calibration data download support

A text file containing calibration data in hex format can
be provided at following path:

/lib/firmware/mrvl/sd8797_caldata.conf

The data will be downloaded to firmware during initialization.

Reviewed-by: Mike Frysinger <vapier@chromium.org>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: Hyuckjoo Lee <hyuckjoo.lee@samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 drivers/bluetooth/btmrvl_drv.h  |   8 +++
 drivers/bluetooth/btmrvl_main.c | 116 ++++++++++++++++++++++++++++++++++++++++
 drivers/bluetooth/btmrvl_sdio.c |   9 +++-
 drivers/bluetooth/btmrvl_sdio.h |   2 +
 4 files changed, 134 insertions(+), 1 deletion(-)

diff --git a/drivers/bluetooth/btmrvl_drv.h b/drivers/bluetooth/btmrvl_drv.h
index 42f7028d3890..f9d183387f45 100644
--- a/drivers/bluetooth/btmrvl_drv.h
+++ b/drivers/bluetooth/btmrvl_drv.h
@@ -23,6 +23,8 @@
 #include <linux/bitops.h>
 #include <linux/slab.h>
 #include <net/bluetooth/bluetooth.h>
+#include <linux/ctype.h>
+#include <linux/firmware.h>
 
 #define BTM_HEADER_LEN			4
 #define BTM_UPLD_SIZE			2312
@@ -41,6 +43,8 @@ struct btmrvl_thread {
 struct btmrvl_device {
 	void *card;
 	struct hci_dev *hcidev;
+	struct device *dev;
+	const char *cal_data;
 
 	u8 dev_type;
 
@@ -91,6 +95,7 @@ struct btmrvl_private {
 #define BT_CMD_HOST_SLEEP_CONFIG	0x59
 #define BT_CMD_HOST_SLEEP_ENABLE	0x5A
 #define BT_CMD_MODULE_CFG_REQ		0x5B
+#define BT_CMD_LOAD_CONFIG_DATA		0x61
 
 /* Sub-commands: Module Bringup/Shutdown Request/Response */
 #define MODULE_BRINGUP_REQ		0xF1
@@ -116,6 +121,9 @@ struct btmrvl_private {
 #define PS_SLEEP			0x01
 #define PS_AWAKE			0x00
 
+#define BT_CMD_DATA_SIZE		32
+#define BT_CAL_DATA_SIZE		28
+
 struct btmrvl_event {
 	u8 ec;		/* event counter */
 	u8 length;
diff --git a/drivers/bluetooth/btmrvl_main.c b/drivers/bluetooth/btmrvl_main.c
index e0ae1f4ea406..6e7bd4e4adbb 100644
--- a/drivers/bluetooth/btmrvl_main.c
+++ b/drivers/bluetooth/btmrvl_main.c
@@ -432,12 +432,128 @@ static int btmrvl_open(struct hci_dev *hdev)
 	return 0;
 }
 
+/*
+ * This function parses provided calibration data input. It should contain
+ * hex bytes separated by space or new line character. Here is an example.
+ * 00 1C 01 37 FF FF FF FF 02 04 7F 01
+ * CE BA 00 00 00 2D C6 C0 00 00 00 00
+ * 00 F0 00 00
+ */
+static int btmrvl_parse_cal_cfg(const u8 *src, u32 len, u8 *dst, u32 dst_size)
+{
+	const u8 *s = src;
+	u8 *d = dst;
+	int ret;
+	u8 tmp[3];
+
+	tmp[2] = '\0';
+	while ((s - src) <= len - 2) {
+		if (isspace(*s)) {
+			s++;
+			continue;
+		}
+
+		if (isxdigit(*s)) {
+			if ((d - dst) >= dst_size) {
+				BT_ERR("calibration data file too big!!!");
+				return -EINVAL;
+			}
+
+			memcpy(tmp, s, 2);
+
+			ret = kstrtou8(tmp, 16, d++);
+			if (ret < 0)
+				return ret;
+
+			s += 2;
+		} else {
+			return -EINVAL;
+		}
+	}
+	if (d == dst)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int btmrvl_load_cal_data(struct btmrvl_private *priv,
+				u8 *config_data)
+{
+	int i, ret;
+	u8 data[BT_CMD_DATA_SIZE];
+
+	data[0] = 0x00;
+	data[1] = 0x00;
+	data[2] = 0x00;
+	data[3] = BT_CMD_DATA_SIZE - 4;
+
+	/* Swap cal-data bytes. Each four bytes are swapped. Considering 4
+	 * byte SDIO header offset, mapping of input and output bytes will be
+	 * {3, 2, 1, 0} -> {0+4, 1+4, 2+4, 3+4},
+	 * {7, 6, 5, 4} -> {4+4, 5+4, 6+4, 7+4} */
+	for (i = 4; i < BT_CMD_DATA_SIZE; i++)
+		data[i] = config_data[(i / 4) * 8 - 1 - i];
+
+	print_hex_dump_bytes("Calibration data: ",
+			     DUMP_PREFIX_OFFSET, data, BT_CMD_DATA_SIZE);
+
+	ret = btmrvl_send_sync_cmd(priv, BT_CMD_LOAD_CONFIG_DATA, data,
+				   BT_CMD_DATA_SIZE);
+	if (ret)
+		BT_ERR("Failed to download caibration data\n");
+
+	return 0;
+}
+
+static int
+btmrvl_process_cal_cfg(struct btmrvl_private *priv, u8 *data, u32 size)
+{
+	u8 cal_data[BT_CAL_DATA_SIZE];
+	int ret;
+
+	ret = btmrvl_parse_cal_cfg(data, size, cal_data, sizeof(cal_data));
+	if (ret)
+		return ret;
+
+	ret = btmrvl_load_cal_data(priv, cal_data);
+	if (ret) {
+		BT_ERR("Fail to load calibrate data");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int btmrvl_cal_data_config(struct btmrvl_private *priv)
+{
+	const struct firmware *cfg;
+	int ret;
+	const char *cal_data = priv->btmrvl_dev.cal_data;
+
+	if (!cal_data)
+		return 0;
+
+	ret = request_firmware(&cfg, cal_data, priv->btmrvl_dev.dev);
+	if (ret < 0) {
+		BT_DBG("Failed to get %s file, skipping cal data download",
+		       cal_data);
+		return 0;
+	}
+
+	ret = btmrvl_process_cal_cfg(priv, (u8 *)cfg->data, cfg->size);
+	release_firmware(cfg);
+	return ret;
+}
+
 static int btmrvl_setup(struct hci_dev *hdev)
 {
 	struct btmrvl_private *priv = hci_get_drvdata(hdev);
 
 	btmrvl_send_module_cfg_cmd(priv, MODULE_BRINGUP_REQ);
 
+	if (btmrvl_cal_data_config(priv))
+		BT_ERR("Set cal data failed");
+
 	priv->btmrvl_dev.psmode = 1;
 	btmrvl_enable_ps(priv);
 
diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c
index 5b70bcb38a5e..332475e400cf 100644
--- a/drivers/bluetooth/btmrvl_sdio.c
+++ b/drivers/bluetooth/btmrvl_sdio.c
@@ -18,7 +18,6 @@
  * this warranty disclaimer.
  **/
 
-#include <linux/firmware.h>
 #include <linux/slab.h>
 
 #include <linux/mmc/sdio_ids.h>
@@ -102,6 +101,7 @@ static const struct btmrvl_sdio_card_reg btmrvl_reg_88xx = {
 static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = {
 	.helper		= "mrvl/sd8688_helper.bin",
 	.firmware	= "mrvl/sd8688.bin",
+	.cal_data	= NULL,
 	.reg		= &btmrvl_reg_8688,
 	.sd_blksz_fw_dl	= 64,
 };
@@ -109,6 +109,7 @@ static const struct btmrvl_sdio_device btmrvl_sdio_sd8688 = {
 static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = {
 	.helper		= NULL,
 	.firmware	= "mrvl/sd8787_uapsta.bin",
+	.cal_data	= NULL,
 	.reg		= &btmrvl_reg_87xx,
 	.sd_blksz_fw_dl	= 256,
 };
@@ -116,6 +117,7 @@ static const struct btmrvl_sdio_device btmrvl_sdio_sd8787 = {
 static const struct btmrvl_sdio_device btmrvl_sdio_sd8797 = {
 	.helper		= NULL,
 	.firmware	= "mrvl/sd8797_uapsta.bin",
+	.cal_data	= "mrvl/sd8797_caldata.conf",
 	.reg		= &btmrvl_reg_87xx,
 	.sd_blksz_fw_dl	= 256,
 };
@@ -123,6 +125,7 @@ static const struct btmrvl_sdio_device btmrvl_sdio_sd8797 = {
 static const struct btmrvl_sdio_device btmrvl_sdio_sd8897 = {
 	.helper		= NULL,
 	.firmware	= "mrvl/sd8897_uapsta.bin",
+	.cal_data	= NULL,
 	.reg		= &btmrvl_reg_88xx,
 	.sd_blksz_fw_dl	= 256,
 };
@@ -1006,6 +1009,7 @@ static int btmrvl_sdio_probe(struct sdio_func *func,
 		struct btmrvl_sdio_device *data = (void *) id->driver_data;
 		card->helper = data->helper;
 		card->firmware = data->firmware;
+		card->cal_data = data->cal_data;
 		card->reg = data->reg;
 		card->sd_blksz_fw_dl = data->sd_blksz_fw_dl;
 	}
@@ -1034,6 +1038,8 @@ static int btmrvl_sdio_probe(struct sdio_func *func,
 	}
 
 	card->priv = priv;
+	priv->btmrvl_dev.dev = &card->func->dev;
+	priv->btmrvl_dev.cal_data = card->cal_data;
 
 	/* Initialize the interface specific function pointers */
 	priv->hw_host_to_card = btmrvl_sdio_host_to_card;
@@ -1216,4 +1222,5 @@ MODULE_FIRMWARE("mrvl/sd8688_helper.bin");
 MODULE_FIRMWARE("mrvl/sd8688.bin");
 MODULE_FIRMWARE("mrvl/sd8787_uapsta.bin");
 MODULE_FIRMWARE("mrvl/sd8797_uapsta.bin");
+MODULE_FIRMWARE("mrvl/sd8797_caldata.conf");
 MODULE_FIRMWARE("mrvl/sd8897_uapsta.bin");
diff --git a/drivers/bluetooth/btmrvl_sdio.h b/drivers/bluetooth/btmrvl_sdio.h
index 43d35a609ca9..6872d9ecac07 100644
--- a/drivers/bluetooth/btmrvl_sdio.h
+++ b/drivers/bluetooth/btmrvl_sdio.h
@@ -85,6 +85,7 @@ struct btmrvl_sdio_card {
 	u32 ioport;
 	const char *helper;
 	const char *firmware;
+	const char *cal_data;
 	const struct btmrvl_sdio_card_reg *reg;
 	u16 sd_blksz_fw_dl;
 	u8 rx_unit;
@@ -94,6 +95,7 @@ struct btmrvl_sdio_card {
 struct btmrvl_sdio_device {
 	const char *helper;
 	const char *firmware;
+	const char *cal_data;
 	const struct btmrvl_sdio_card_reg *reg;
 	u16 sd_blksz_fw_dl;
 };
-- 
cgit 


From 92947789815f9ec808ad3de177af99a5d02ef6b2 Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Thu, 26 Sep 2013 19:18:15 +0530
Subject: clk: wm831x: get rid of the implementation of remove function

The remove function implemented for platform driver's remove callback
just return 0 as part of its implementation.

Remove this APIs and do not pass the valid .remove for platform driver.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
 drivers/clk/clk-wm831x.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/clk/clk-wm831x.c b/drivers/clk/clk-wm831x.c
index 805b4c344006..b131041c8f48 100644
--- a/drivers/clk/clk-wm831x.c
+++ b/drivers/clk/clk-wm831x.c
@@ -391,14 +391,8 @@ static int wm831x_clk_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int wm831x_clk_remove(struct platform_device *pdev)
-{
-	return 0;
-}
-
 static struct platform_driver wm831x_clk_driver = {
 	.probe = wm831x_clk_probe,
-	.remove = wm831x_clk_remove,
 	.driver		= {
 		.name	= "wm831x-clk",
 		.owner	= THIS_MODULE,
-- 
cgit 


From c6ca5e28bc005f109b2772765c62b4d4ec35c954 Mon Sep 17 00:00:00 2001
From: cedric Voncken <cedric.voncken@acksys.fr>
Date: Mon, 26 Aug 2013 14:04:52 +0200
Subject: cfg80211: vlan priority handling in WMM

If the VLAN tci is set in skb->vlan_tci use the
priority field to determine the WMM priority.

Signed-off-by: cedric Voncken <cedric.voncken@acksys.fr>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/wireless/util.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/net/wireless/util.c b/net/wireless/util.c
index ce090c1c5e4f..3c8be6104ba4 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -10,6 +10,7 @@
 #include <net/cfg80211.h>
 #include <net/ip.h>
 #include <net/dsfield.h>
+#include <linux/if_vlan.h>
 #include "core.h"
 #include "rdev-ops.h"
 
@@ -691,6 +692,7 @@ EXPORT_SYMBOL(ieee80211_amsdu_to_8023s);
 unsigned int cfg80211_classify8021d(struct sk_buff *skb)
 {
 	unsigned int dscp;
+	unsigned char vlan_priority;
 
 	/* skb->priority values from 256->263 are magic values to
 	 * directly indicate a specific 802.1d priority.  This is used
@@ -700,6 +702,13 @@ unsigned int cfg80211_classify8021d(struct sk_buff *skb)
 	if (skb->priority >= 256 && skb->priority <= 263)
 		return skb->priority - 256;
 
+	if (vlan_tx_tag_present(skb)) {
+		vlan_priority = (vlan_tx_tag_get(skb) & VLAN_PRIO_MASK)
+			>> VLAN_PRIO_SHIFT;
+		if (vlan_priority > 0)
+			return vlan_priority;
+	}
+
 	switch (skb->protocol) {
 	case htons(ETH_P_IP):
 		dscp = ipv4_get_dsfield(ip_hdr(skb)) & 0xfc;
-- 
cgit 


From 3713c0cfd06fa49729a12929a7ee8b7ad48f3c02 Mon Sep 17 00:00:00 2001
From: Soren Brinkmann <soren.brinkmann@xilinx.com>
Date: Wed, 18 Sep 2013 11:48:35 -0700
Subject: clockchips: Add FEAT_PERCPU clockevent flag

Add the flag CLOCK_EVT_FEAT_PERCPU which is supposed to be set for per
cpu clockevent devices.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
---
 include/linux/clockchips.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/clockchips.h b/include/linux/clockchips.h
index 0857922e8ad0..493aa021c7a9 100644
--- a/include/linux/clockchips.h
+++ b/include/linux/clockchips.h
@@ -60,6 +60,7 @@ enum clock_event_mode {
  * Core shall set the interrupt affinity dynamically in broadcast mode
  */
 #define CLOCK_EVT_FEAT_DYNIRQ		0x000020
+#define CLOCK_EVT_FEAT_PERCPU		0x000040
 
 /**
  * struct clock_event_device - clock event device descriptor
-- 
cgit 


From 6661039dc906bce5d532477f26c7c965f25e5d02 Mon Sep 17 00:00:00 2001
From: Soren Brinkmann <soren.brinkmann@xilinx.com>
Date: Wed, 18 Sep 2013 11:48:36 -0700
Subject: clocksource/arm_global_timer: Set FEAT_PERCPU flag

The arm_global_timer is a per cpu device. Set the appropriate flag.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
---
 drivers/clocksource/arm_global_timer.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/clocksource/arm_global_timer.c b/drivers/clocksource/arm_global_timer.c
index b66c1f36066c..c639b1a9e996 100644
--- a/drivers/clocksource/arm_global_timer.c
+++ b/drivers/clocksource/arm_global_timer.c
@@ -169,7 +169,8 @@ static int gt_clockevents_init(struct clock_event_device *clk)
 	int cpu = smp_processor_id();
 
 	clk->name = "arm_global_timer";
-	clk->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT;
+	clk->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT |
+		CLOCK_EVT_FEAT_PERCPU;
 	clk->set_mode = gt_clockevent_set_mode;
 	clk->set_next_event = gt_clockevent_set_next_event;
 	clk->cpumask = cpumask_of(cpu);
-- 
cgit 


From 245a34962661cd2ce7b4dd6c4aa65d870a589c50 Mon Sep 17 00:00:00 2001
From: Soren Brinkmann <soren.brinkmann@xilinx.com>
Date: Wed, 18 Sep 2013 11:48:37 -0700
Subject: tick: broadcast: Deny per-cpu clockevents from being broadcast
 sources

On most ARM systems the per-cpu clockevents are truly per-cpu in
the sense that they can't be controlled on any other CPU besides
the CPU that they interrupt. If one of these clockevents were to
become a broadcast source we will run into a lot of trouble
because the broadcast source is enabled on the first CPU to go
into deep idle (if that CPU suffers from FEAT_C3_STOP) and that
could be a different CPU than what the clockevent is interrupting
(or even worse the CPU that the clockevent interrupts could be
offline).

Theoretically it's possible to support per-cpu clockevents as the
broadcast source but so far we haven't needed this and supporting
it is rather complicated. Let's just deny the possibility for now
until this becomes a reality (let's hope it never does!).

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
---
 kernel/time/tick-broadcast.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/time/tick-broadcast.c b/kernel/time/tick-broadcast.c
index 218bcb565fed..9532690daaa9 100644
--- a/kernel/time/tick-broadcast.c
+++ b/kernel/time/tick-broadcast.c
@@ -70,6 +70,7 @@ static bool tick_check_broadcast_device(struct clock_event_device *curdev,
 					struct clock_event_device *newdev)
 {
 	if ((newdev->features & CLOCK_EVT_FEAT_DUMMY) ||
+	    (newdev->features & CLOCK_EVT_FEAT_PERCPU) ||
 	    (newdev->features & CLOCK_EVT_FEAT_C3STOP))
 		return false;
 
-- 
cgit 


From fa94bd57b5a5b2206e5fdd0ed2dbacff199121f2 Mon Sep 17 00:00:00 2001
From: Soren Brinkmann <soren.brinkmann@xilinx.com>
Date: Wed, 18 Sep 2013 11:48:38 -0700
Subject: arm: zynq: Enable arm_global_timer

Zynq is based on an ARM Cortex-A9 MPCore, which features the
arm_global_timer in its SCU. Therefore enable the timer for Zynq.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
---
 arch/arm/boot/dts/zynq-7000.dtsi | 8 ++++++++
 arch/arm/mach-zynq/Kconfig       | 1 +
 2 files changed, 9 insertions(+)

diff --git a/arch/arm/boot/dts/zynq-7000.dtsi b/arch/arm/boot/dts/zynq-7000.dtsi
index e32b92b949d2..e7f73b2e4550 100644
--- a/arch/arm/boot/dts/zynq-7000.dtsi
+++ b/arch/arm/boot/dts/zynq-7000.dtsi
@@ -92,6 +92,14 @@
 			};
 		};
 
+		global_timer: timer@f8f00200 {
+			compatible = "arm,cortex-a9-global-timer";
+			reg = <0xf8f00200 0x20>;
+			interrupts = <1 11 0x301>;
+			interrupt-parent = <&intc>;
+			clocks = <&clkc 4>;
+		};
+
 		ttc0: ttc0@f8001000 {
 			interrupt-parent = <&intc>;
 			interrupts = < 0 10 4 0 11 4 0 12 4 >;
diff --git a/arch/arm/mach-zynq/Kconfig b/arch/arm/mach-zynq/Kconfig
index 04f8a4a6e755..6b04260aa142 100644
--- a/arch/arm/mach-zynq/Kconfig
+++ b/arch/arm/mach-zynq/Kconfig
@@ -13,5 +13,6 @@ config ARCH_ZYNQ
 	select HAVE_SMP
 	select SPARSE_IRQ
 	select CADENCE_TTC_TIMER
+	select ARM_GLOBAL_TIMER
 	help
 	  Support for Xilinx Zynq ARM Cortex A9 Platform
-- 
cgit 


From 326e31eebe61dc838e031ea16968b2cfb43443e3 Mon Sep 17 00:00:00 2001
From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Tue, 1 Oct 2013 11:00:53 +0200
Subject: clocksource: Put nodes passed to CLOCKSOURCE_OF_DECLARE callbacks
 centrally
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Instead of letting each driver call of_node_put do it centrally in the
loop that also calls the CLOCKSOURCE_OF_DECLARE callbacks. This is less
prone to error and also moves getting and putting the references into the
same function.

Consequently all respective of_node_put calls in drivers are removed.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: David Brown <davidb@codeaurora.org>
---
 arch/arm/mach-msm/timer.c             | 1 -
 drivers/clocksource/clksrc-of.c       | 1 +
 drivers/clocksource/dw_apb_timer_of.c | 2 --
 drivers/clocksource/tegra20_timer.c   | 4 ----
 drivers/clocksource/vt8500_timer.c    | 2 --
 5 files changed, 1 insertion(+), 9 deletions(-)

diff --git a/arch/arm/mach-msm/timer.c b/arch/arm/mach-msm/timer.c
index 696fb73296d0..1e9c3383daba 100644
--- a/arch/arm/mach-msm/timer.c
+++ b/arch/arm/mach-msm/timer.c
@@ -274,7 +274,6 @@ static void __init msm_dt_timer_init(struct device_node *np)
 		pr_err("Unknown frequency\n");
 		return;
 	}
-	of_node_put(np);
 
 	event_base = base + 0x4;
 	sts_base = base + 0x88;
diff --git a/drivers/clocksource/clksrc-of.c b/drivers/clocksource/clksrc-of.c
index 37f5325bec95..8b2ed14f121d 100644
--- a/drivers/clocksource/clksrc-of.c
+++ b/drivers/clocksource/clksrc-of.c
@@ -32,5 +32,6 @@ void __init clocksource_of_init(void)
 	for_each_matching_node_and_match(np, __clksrc_of_table, &match) {
 		init_func = match->data;
 		init_func(np);
+		of_node_put(np);
 	}
 }
diff --git a/drivers/clocksource/dw_apb_timer_of.c b/drivers/clocksource/dw_apb_timer_of.c
index 003b2309f463..482618b59fa4 100644
--- a/drivers/clocksource/dw_apb_timer_of.c
+++ b/drivers/clocksource/dw_apb_timer_of.c
@@ -138,12 +138,10 @@ static void __init dw_apb_timer_init(struct device_node *timer)
 	case 0:
 		pr_debug("%s: found clockevent timer\n", __func__);
 		add_clockevent(timer);
-		of_node_put(timer);
 		break;
 	case 1:
 		pr_debug("%s: found clocksource timer\n", __func__);
 		add_clocksource(timer);
-		of_node_put(timer);
 		init_sched_clock();
 		break;
 	default:
diff --git a/drivers/clocksource/tegra20_timer.c b/drivers/clocksource/tegra20_timer.c
index 5cff61677b6c..642849256d82 100644
--- a/drivers/clocksource/tegra20_timer.c
+++ b/drivers/clocksource/tegra20_timer.c
@@ -181,8 +181,6 @@ static void __init tegra20_init_timer(struct device_node *np)
 		rate = clk_get_rate(clk);
 	}
 
-	of_node_put(np);
-
 	switch (rate) {
 	case 12000000:
 		timer_writel(0x000b, TIMERUS_USEC_CFG);
@@ -241,8 +239,6 @@ static void __init tegra20_init_rtc(struct device_node *np)
 	else
 		clk_prepare_enable(clk);
 
-	of_node_put(np);
-
 	register_persistent_clock(NULL, tegra_read_persistent_clock);
 }
 CLOCKSOURCE_OF_DECLARE(tegra20_rtc, "nvidia,tegra20-rtc", tegra20_init_rtc);
diff --git a/drivers/clocksource/vt8500_timer.c b/drivers/clocksource/vt8500_timer.c
index 64f553f04fa4..ad3c0e83a779 100644
--- a/drivers/clocksource/vt8500_timer.c
+++ b/drivers/clocksource/vt8500_timer.c
@@ -137,14 +137,12 @@ static void __init vt8500_timer_init(struct device_node *np)
 	if (!regbase) {
 		pr_err("%s: Missing iobase description in Device Tree\n",
 								__func__);
-		of_node_put(np);
 		return;
 	}
 	timer_irq = irq_of_parse_and_map(np, 0);
 	if (!timer_irq) {
 		pr_err("%s: Missing irq description in Device Tree\n",
 								__func__);
-		of_node_put(np);
 		return;
 	}
 
-- 
cgit 


From 1cf0203ac9e3d7abed67196db494469b24fe09e3 Mon Sep 17 00:00:00 2001
From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Tue, 1 Oct 2013 10:38:12 +0200
Subject: clocksource: dw_apb_timer_of: Mark a few more functions as __init
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

These are all only called by dw_apb_timer_init which is an __init
function, too

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/clocksource/dw_apb_timer_of.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/clocksource/dw_apb_timer_of.c b/drivers/clocksource/dw_apb_timer_of.c
index 482618b59fa4..45ba8aecc729 100644
--- a/drivers/clocksource/dw_apb_timer_of.c
+++ b/drivers/clocksource/dw_apb_timer_of.c
@@ -23,7 +23,7 @@
 #include <linux/clk.h>
 #include <linux/sched_clock.h>
 
-static void timer_get_base_and_rate(struct device_node *np,
+static void __init timer_get_base_and_rate(struct device_node *np,
 				    void __iomem **base, u32 *rate)
 {
 	struct clk *timer_clk;
@@ -55,11 +55,11 @@ static void timer_get_base_and_rate(struct device_node *np,
 
 try_clock_freq:
 	if (of_property_read_u32(np, "clock-freq", rate) &&
-		of_property_read_u32(np, "clock-frequency", rate))
+	    of_property_read_u32(np, "clock-frequency", rate))
 		panic("No clock nor clock-frequency property for %s", np->name);
 }
 
-static void add_clockevent(struct device_node *event_timer)
+static void __init add_clockevent(struct device_node *event_timer)
 {
 	void __iomem *iobase;
 	struct dw_apb_clock_event_device *ced;
@@ -82,7 +82,7 @@ static void add_clockevent(struct device_node *event_timer)
 static void __iomem *sched_io_base;
 static u32 sched_rate;
 
-static void add_clocksource(struct device_node *source_timer)
+static void __init add_clocksource(struct device_node *source_timer)
 {
 	void __iomem *iobase;
 	struct dw_apb_clocksource *cs;
@@ -117,7 +117,7 @@ static const struct of_device_id sptimer_ids[] __initconst = {
 	{ /* Sentinel */ },
 };
 
-static void init_sched_clock(void)
+static void __init init_sched_clock(void)
 {
 	struct device_node *sched_timer;
 
-- 
cgit 


From 4fbcdc813fb9c0324fcff4c75414e717569d965e Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Fri, 27 Sep 2013 13:13:12 -0700
Subject: clocksource: arm_arch_timer: Use clocksource for suspend timekeeping

The ARM architected timers keep counting during suspend so we can
mark this clocksource with the CLOCK_SOURCE_SUSPEND_NONSTOP flag.
This flag will indicate that this clocksource can be used for
calculating suspend time and injecting sleep time into the
timekeeping core. This should be more accurate than using an
external RTC or architecture specific persistent clock.

Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/clocksource/arm_arch_timer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index fbd9ccd5e114..ce98d5e70927 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -389,7 +389,7 @@ static struct clocksource clocksource_counter = {
 	.rating	= 400,
 	.read	= arch_counter_read,
 	.mask	= CLOCKSOURCE_MASK(56),
-	.flags	= CLOCK_SOURCE_IS_CONTINUOUS,
+	.flags	= CLOCK_SOURCE_IS_CONTINUOUS | CLOCK_SOURCE_SUSPEND_NONSTOP,
 };
 
 static struct cyclecounter cyclecounter = {
-- 
cgit 


From cbbe1c03e762abd3303434c787963c613f3e7da8 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Thu, 26 Sep 2013 07:41:30 -0300
Subject: [media] stk1135: fix two warnings added by changeset 76e0598

drivers/media/usb/gspca/stk1135.c:615:6: warning: no previous prototype for 'stk1135_try_fmt' [-Wmissing-prototypes]
 void stk1135_try_fmt(struct gspca_dev *gspca_dev, struct v4l2_format *fmt)
      ^
drivers/media/usb/gspca/stk1135.c:627:5: warning: no previous prototype for 'stk1135_enum_framesizes' [-Wmissing-prototypes]
 int stk1135_enum_framesizes(struct gspca_dev *gspca_dev,

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/gspca/stk1135.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/usb/gspca/stk1135.c b/drivers/media/usb/gspca/stk1135.c
index 8add2f74deda..1fc80af2a189 100644
--- a/drivers/media/usb/gspca/stk1135.c
+++ b/drivers/media/usb/gspca/stk1135.c
@@ -612,7 +612,7 @@ static int sd_init_controls(struct gspca_dev *gspca_dev)
 	return 0;
 }
 
-void stk1135_try_fmt(struct gspca_dev *gspca_dev, struct v4l2_format *fmt)
+static void stk1135_try_fmt(struct gspca_dev *gspca_dev, struct v4l2_format *fmt)
 {
 	fmt->fmt.pix.width = clamp(fmt->fmt.pix.width, 32U, 1280U);
 	fmt->fmt.pix.height = clamp(fmt->fmt.pix.height, 32U, 1024U);
@@ -624,7 +624,7 @@ void stk1135_try_fmt(struct gspca_dev *gspca_dev, struct v4l2_format *fmt)
 	fmt->fmt.pix.sizeimage = fmt->fmt.pix.width * fmt->fmt.pix.height;
 }
 
-int stk1135_enum_framesizes(struct gspca_dev *gspca_dev,
+static int stk1135_enum_framesizes(struct gspca_dev *gspca_dev,
 			struct v4l2_frmsizeenum *fsize)
 {
 	if (fsize->index != 0 || fsize->pixel_format != V4L2_PIX_FMT_SBGGR8)
-- 
cgit 


From 503f2de78d8358ca6feee07871ac6a0cf160a75e Mon Sep 17 00:00:00 2001
From: Ming Lei <ming.lei@canonical.com>
Date: Sat, 17 Aug 2013 12:25:07 -0300
Subject: [media] media: dvb-core: prepare for enabling irq in complete()

Complete() will be run with interrupt enabled, so change to
spin_lock_irqsave().
These functions may be called inside URB->complete(), so use
spin_lock_irqsave().

Signed-off-by: Ming Lei <ming.lei@canonical.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/dvb-core/dvb_demux.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/media/dvb-core/dvb_demux.c b/drivers/media/dvb-core/dvb_demux.c
index 3485655fa082..58de4410c525 100644
--- a/drivers/media/dvb-core/dvb_demux.c
+++ b/drivers/media/dvb-core/dvb_demux.c
@@ -476,7 +476,9 @@ static void dvb_dmx_swfilter_packet(struct dvb_demux *demux, const u8 *buf)
 void dvb_dmx_swfilter_packets(struct dvb_demux *demux, const u8 *buf,
 			      size_t count)
 {
-	spin_lock(&demux->lock);
+	unsigned long flags;
+
+	spin_lock_irqsave(&demux->lock, flags);
 
 	while (count--) {
 		if (buf[0] == 0x47)
@@ -484,7 +486,7 @@ void dvb_dmx_swfilter_packets(struct dvb_demux *demux, const u8 *buf,
 		buf += 188;
 	}
 
-	spin_unlock(&demux->lock);
+	spin_unlock_irqrestore(&demux->lock, flags);
 }
 
 EXPORT_SYMBOL(dvb_dmx_swfilter_packets);
@@ -519,8 +521,9 @@ static inline void _dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf,
 {
 	int p = 0, i, j;
 	const u8 *q;
+	unsigned long flags;
 
-	spin_lock(&demux->lock);
+	spin_lock_irqsave(&demux->lock, flags);
 
 	if (demux->tsbufp) { /* tsbuf[0] is now 0x47. */
 		i = demux->tsbufp;
@@ -564,7 +567,7 @@ static inline void _dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf,
 	}
 
 bailout:
-	spin_unlock(&demux->lock);
+	spin_unlock_irqrestore(&demux->lock, flags);
 }
 
 void dvb_dmx_swfilter(struct dvb_demux *demux, const u8 *buf, size_t count)
@@ -581,11 +584,13 @@ EXPORT_SYMBOL(dvb_dmx_swfilter_204);
 
 void dvb_dmx_swfilter_raw(struct dvb_demux *demux, const u8 *buf, size_t count)
 {
-	spin_lock(&demux->lock);
+	unsigned long flags;
+
+	spin_lock_irqsave(&demux->lock, flags);
 
 	demux->feed->cb.ts(buf, count, NULL, 0, &demux->feed->feed.ts, DMX_OK);
 
-	spin_unlock(&demux->lock);
+	spin_unlock_irqrestore(&demux->lock, flags);
 }
 EXPORT_SYMBOL(dvb_dmx_swfilter_raw);
 
-- 
cgit 


From f5ca8c24eca0c01e2794669c4460eb3e5ee5fd7e Mon Sep 17 00:00:00 2001
From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Mon, 30 Sep 2013 13:00:26 -0300
Subject: [media] fc001[23]: Change variable type to bool

The variable vco_select is only assigned the values true and false.
Change its type to bool.
The simplified semantic patch that find this problem is as
follows (http://coccinelle.lip6.fr/):
@exists@
type T;
identifier b;
@@
- T
+ bool
  b = ...;
  ... when any
  b = \(true\|false\)

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Acked-by: Hans-Frieder Vogt <hfvogt@gmx.net>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/tuners/fc0012.c | 2 +-
 drivers/media/tuners/fc0013.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/tuners/fc0012.c b/drivers/media/tuners/fc0012.c
index f4d0e797a6cc..d74e92056810 100644
--- a/drivers/media/tuners/fc0012.c
+++ b/drivers/media/tuners/fc0012.c
@@ -139,7 +139,7 @@ static int fc0012_set_params(struct dvb_frontend *fe)
 	unsigned char reg[7], am, pm, multi, tmp;
 	unsigned long f_vco;
 	unsigned short xtal_freq_khz_2, xin, xdiv;
-	int vco_select = false;
+	bool vco_select = false;
 
 	if (fe->callback) {
 		ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
diff --git a/drivers/media/tuners/fc0013.c b/drivers/media/tuners/fc0013.c
index bd8f0f1e8f3b..b4162315773d 100644
--- a/drivers/media/tuners/fc0013.c
+++ b/drivers/media/tuners/fc0013.c
@@ -233,7 +233,7 @@ static int fc0013_set_params(struct dvb_frontend *fe)
 	unsigned char reg[7], am, pm, multi, tmp;
 	unsigned long f_vco;
 	unsigned short xtal_freq_khz_2, xin, xdiv;
-	int vco_select = false;
+	bool vco_select = false;
 
 	if (fe->callback) {
 		ret = fe->callback(priv->i2c, DVB_FRONTEND_COMPONENT_TUNER,
-- 
cgit 


From 6894c070e1f23492239a2e5d6777cb1451620bda Mon Sep 17 00:00:00 2001
From: Andreas Matthies <a.matthies@gmx.net>
Date: Mon, 30 Sep 2013 13:08:16 -0300
Subject: [media] tda10071: change firmware download condition

Reading firmware status register to detect whether firmware is
running or not didn't work 100% reliably. That register was
likely set by firmware itself which means it could not contain
reasonable values until firmware is up and running. Usually it
just worked as some garbage value was returned accidentally but it
appears that in some cases returned garbage value was 0x00 which
was considered "firmware is up and running" by the driver and
firmware loading was skipped leaving device to non-working state.
Fix problem by removing unreliable check and let the driver keep
count whether firmware is loaded or not.

Signed-off-by: Andreas Matthies <a.matthies@gmx.net>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/dvb-frontends/tda10071.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/media/dvb-frontends/tda10071.c b/drivers/media/dvb-frontends/tda10071.c
index 2521f7e23018..e79749cfec81 100644
--- a/drivers/media/dvb-frontends/tda10071.c
+++ b/drivers/media/dvb-frontends/tda10071.c
@@ -912,14 +912,8 @@ static int tda10071_init(struct dvb_frontend *fe)
 		{ 0xd5, 0x03, 0x03 },
 	};
 
-	/* firmware status */
-	ret = tda10071_rd_reg(priv, 0x51, &tmp);
-	if (ret)
-		goto error;
-
-	if (!tmp) {
+	if (priv->warm) {
 		/* warm state - wake up device from sleep */
-		priv->warm = 1;
 
 		for (i = 0; i < ARRAY_SIZE(tab); i++) {
 			ret = tda10071_wr_reg_mask(priv, tab[i].reg,
@@ -937,7 +931,6 @@ static int tda10071_init(struct dvb_frontend *fe)
 			goto error;
 	} else {
 		/* cold state - try to download firmware */
-		priv->warm = 0;
 
 		/* request the firmware, this will block and timeout */
 		ret = request_firmware(&fw, fw_file, priv->i2c->dev.parent);
-- 
cgit 


From 221ff3d0d59bcb20671e3e36b8417b52ca0de89f Mon Sep 17 00:00:00 2001
From: Christoph Jaeger <christophjaeger@linux.com>
Date: Mon, 30 Sep 2013 13:13:12 -0300
Subject: [media] drxd_hard: remove unused SIZEOF_ARRAY

SIZEOF_ARRAY is not used (anymore). Besides, ARRAY_SIZE, defined in
include/linux/kernel.h, should be used rather than explicitly coding some
variant of it.

Signed-off-by: Christoph Jaeger <christophjaeger@linux.com>
Reviewed-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/dvb-frontends/drxd_hard.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/media/dvb-frontends/drxd_hard.c b/drivers/media/dvb-frontends/drxd_hard.c
index 9a2134792cfa..cbd7c921a628 100644
--- a/drivers/media/dvb-frontends/drxd_hard.c
+++ b/drivers/media/dvb-frontends/drxd_hard.c
@@ -46,10 +46,6 @@
 #define DRX_I2C_MODEFLAGS     0xC0
 #define DRX_I2C_FLAGS         0xF0
 
-#ifndef SIZEOF_ARRAY
-#define SIZEOF_ARRAY(array) (sizeof((array))/sizeof((array)[0]))
-#endif
-
 #define DEFAULT_LOCK_TIMEOUT    1100
 
 #define DRX_CHANNEL_AUTO 0
-- 
cgit 


From f25bbaff71a779a7d347e0588e56d890a153af1b Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Mon, 30 Sep 2013 13:22:20 -0300
Subject: [media] dib9000: fix potential format string leak

Make sure that a format string cannot accidentally
leak into the printk buffer.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/dvb-frontends/dib9000.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/dvb-frontends/dib9000.c b/drivers/media/dvb-frontends/dib9000.c
index 6201c59a78dd..61b2cfe6789c 100644
--- a/drivers/media/dvb-frontends/dib9000.c
+++ b/drivers/media/dvb-frontends/dib9000.c
@@ -649,7 +649,7 @@ static int dib9000_risc_debug_buf(struct dib9000_state *state, u16 * data, u8 si
 	b[2 * (size - 2) - 1] = '\0';	/* Bullet proof the buffer */
 	if (*b == '~') {
 		b++;
-		dprintk(b);
+		dprintk("%s", b);
 	} else
 		dprintk("RISC%d: %d.%04d %s", state->fe_id, ts / 10000, ts % 10000, *b ? b : "<emtpy>");
 	return 1;
-- 
cgit 


From d7f74c0310c3245052d4b8f6b92d8fc628785e76 Mon Sep 17 00:00:00 2001
From: Michael Krufky <mkrufky@linuxtv.org>
Date: Mon, 30 Sep 2013 13:24:48 -0300
Subject: [media] dib9000: fix typo in spelling the word empty

Thanks-to: Joe Perches <joe@perches.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/dvb-frontends/dib9000.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/dvb-frontends/dib9000.c b/drivers/media/dvb-frontends/dib9000.c
index 61b2cfe6789c..e540cfb13bac 100644
--- a/drivers/media/dvb-frontends/dib9000.c
+++ b/drivers/media/dvb-frontends/dib9000.c
@@ -651,7 +651,7 @@ static int dib9000_risc_debug_buf(struct dib9000_state *state, u16 * data, u8 si
 		b++;
 		dprintk("%s", b);
 	} else
-		dprintk("RISC%d: %d.%04d %s", state->fe_id, ts / 10000, ts % 10000, *b ? b : "<emtpy>");
+		dprintk("RISC%d: %d.%04d %s", state->fe_id, ts / 10000, ts % 10000, *b ? b : "<empty>");
 	return 1;
 }
 
-- 
cgit 


From 03a6727995df6dbef6e0054761e75ecc68b3a6d2 Mon Sep 17 00:00:00 2001
From: John Horan <knasher@gmail.com>
Date: Wed, 28 Aug 2013 09:37:37 -0300
Subject: [media] media: dvb-frontends: ts2020: Added in a option for frequency
 divider value for s600 devices

When the tuner part of the ds3000 driver was split to share code with the m88rs2000 driver, the ts2020 driver used
the frequency divider value from the m88rs2000 driver.  However the ds3000 driver requires a different value, and this
resulted in some frequecies being invisible to the tuner.  This patch adds back in the value needed for the ds3000 driver
and configured as an option in the dw2102 frontend driver.
It may also apply to su3000 devices, which use the same ds3000 driver, but for now it is only applied to the s660 device.

Signed-off-by: John Horan <knasher@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/dvb-frontends/ts2020.c |  4 +++-
 drivers/media/dvb-frontends/ts2020.h |  1 +
 drivers/media/usb/dvb-usb/dw2102.c   | 13 ++++++++++---
 3 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/drivers/media/dvb-frontends/ts2020.c b/drivers/media/dvb-frontends/ts2020.c
index ad7ad857ab2a..678f13ac4503 100644
--- a/drivers/media/dvb-frontends/ts2020.c
+++ b/drivers/media/dvb-frontends/ts2020.c
@@ -31,6 +31,7 @@ struct ts2020_priv {
 	struct i2c_adapter *i2c;
 	u8 clk_out_div;
 	u32 frequency;
+	u32 frequency_div;
 };
 
 static int ts2020_release(struct dvb_frontend *fe)
@@ -193,7 +194,7 @@ static int ts2020_set_params(struct dvb_frontend *fe)
 	u8 lo = 0x01, div4 = 0x0;
 
 	/* Calculate frequency divider */
-	if (frequency < 1060000) {
+	if (frequency < priv->frequency_div) {
 		lo |= 0x10;
 		div4 = 0x1;
 		ndiv = (frequency * 14 * 4) / TS2020_XTAL_FREQ;
@@ -340,6 +341,7 @@ struct dvb_frontend *ts2020_attach(struct dvb_frontend *fe,
 	priv->i2c_address = config->tuner_address;
 	priv->i2c = i2c;
 	priv->clk_out_div = config->clk_out_div;
+	priv->frequency_div = config->frequency_div;
 	fe->tuner_priv = priv;
 
 	/* Wake Up the tuner */
diff --git a/drivers/media/dvb-frontends/ts2020.h b/drivers/media/dvb-frontends/ts2020.h
index 5bcb9a71ca80..b2fe6bb3a38b 100644
--- a/drivers/media/dvb-frontends/ts2020.h
+++ b/drivers/media/dvb-frontends/ts2020.h
@@ -28,6 +28,7 @@
 struct ts2020_config {
 	u8 tuner_address;
 	u8 clk_out_div;
+	u32 frequency_div;
 };
 
 #if IS_ENABLED(CONFIG_DVB_TS2020)
diff --git a/drivers/media/usb/dvb-usb/dw2102.c b/drivers/media/usb/dvb-usb/dw2102.c
index 6e237b6dd0a8..6136a2c7dbfd 100644
--- a/drivers/media/usb/dvb-usb/dw2102.c
+++ b/drivers/media/usb/dvb-usb/dw2102.c
@@ -955,9 +955,10 @@ static struct ds3000_config dw2104_ds3000_config = {
 	.demod_address = 0x68,
 };
 
-static struct ts2020_config dw2104_ts2020_config  = {
+static struct ts2020_config dw2104_ts2020_config = {
 	.tuner_address = 0x60,
 	.clk_out_div = 1,
+	.frequency_div = 1060000,
 };
 
 static struct ds3000_config s660_ds3000_config = {
@@ -966,6 +967,12 @@ static struct ds3000_config s660_ds3000_config = {
 	.set_lock_led = dw210x_led_ctrl,
 };
 
+static struct ts2020_config s660_ts2020_config = {
+	.tuner_address = 0x60,
+	.clk_out_div = 1,
+	.frequency_div = 1146000,
+};
+
 static struct stv0900_config dw2104a_stv0900_config = {
 	.demod_address = 0x6a,
 	.demod_mode = 0,
@@ -1205,7 +1212,7 @@ static int ds3000_frontend_attach(struct dvb_usb_adapter *d)
 	if (d->fe_adap[0].fe == NULL)
 		return -EIO;
 
-	dvb_attach(ts2020_attach, d->fe_adap[0].fe, &dw2104_ts2020_config,
+	dvb_attach(ts2020_attach, d->fe_adap[0].fe, &s660_ts2020_config,
 		&d->dev->i2c_adap);
 
 	st->old_set_voltage = d->fe_adap[0].fe->ops.set_voltage;
@@ -1213,7 +1220,7 @@ static int ds3000_frontend_attach(struct dvb_usb_adapter *d)
 
 	dw210x_op_rw(d->dev->udev, 0x8a, 0, 0, obuf, 2, DW210X_WRITE_MSG);
 
-	info("Attached ds3000+ds2020!\n");
+	info("Attached ds3000+ts2020!\n");
 
 	return 0;
 }
-- 
cgit 


From b4559ace2ca8c88666584279f582b998c6591fb0 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Wed, 2 Oct 2013 06:43:37 -0300
Subject: [media] ts2020: keep 1.06 MHz as default value for frequency_div

Changeset 9e8da9e8 added a parameter to specify the frequency
divisor, used by the driver. However, not all places are passing
this parameter. So, preserve the previous default, to avoid breaking
the existing drivers.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/dvb-frontends/ts2020.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/dvb-frontends/ts2020.c b/drivers/media/dvb-frontends/ts2020.c
index 678f13ac4503..9aba044dabed 100644
--- a/drivers/media/dvb-frontends/ts2020.c
+++ b/drivers/media/dvb-frontends/ts2020.c
@@ -344,6 +344,9 @@ struct dvb_frontend *ts2020_attach(struct dvb_frontend *fe,
 	priv->frequency_div = config->frequency_div;
 	fe->tuner_priv = priv;
 
+	if (!priv->frequency_div)
+		priv->frequency_div = 1060000;
+
 	/* Wake Up the tuner */
 	if ((0x03 & ts2020_readreg(fe, 0x00)) == 0x00) {
 		ts2020_writereg(fe, 0x00, 0x01);
-- 
cgit 


From 7b9cff467144c8c62268db1b0948df089caa0999 Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Wed, 2 Oct 2013 11:13:25 +0100
Subject: GFS2: Add allocation parameters structure

This patch adds a structure to contain allocation parameters with
the intention of future expansion of this structure. The idea is
that we should be able to add more information about the allocation
in the future in order to allow the allocator to make a better job
of placing the requests on-disk.

There is no functional difference from applying this patch.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---
 fs/gfs2/aops.c   |  4 +++-
 fs/gfs2/bmap.c   |  3 ++-
 fs/gfs2/file.c   |  8 ++++++--
 fs/gfs2/incore.h | 14 ++++++++++++++
 fs/gfs2/inode.c  | 12 ++++++++----
 fs/gfs2/quota.c  |  8 ++++++--
 fs/gfs2/rgrp.c   | 18 +++++++++---------
 fs/gfs2/rgrp.h   |  2 +-
 fs/gfs2/xattr.c  |  3 ++-
 9 files changed, 51 insertions(+), 21 deletions(-)

diff --git a/fs/gfs2/aops.c b/fs/gfs2/aops.c
index 1f7d8057ea68..b7fc035a6943 100644
--- a/fs/gfs2/aops.c
+++ b/fs/gfs2/aops.c
@@ -611,12 +611,14 @@ static int gfs2_write_begin(struct file *file, struct address_space *mapping,
 		gfs2_write_calc_reserv(ip, len, &data_blocks, &ind_blocks);
 
 	if (alloc_required) {
+		struct gfs2_alloc_parms ap = { .aflags = 0, };
 		error = gfs2_quota_lock_check(ip);
 		if (error)
 			goto out_unlock;
 
 		requested = data_blocks + ind_blocks;
-		error = gfs2_inplace_reserve(ip, requested, 0);
+		ap.target = requested;
+		error = gfs2_inplace_reserve(ip, &ap);
 		if (error)
 			goto out_qunlock;
 	}
diff --git a/fs/gfs2/bmap.c b/fs/gfs2/bmap.c
index 21ad0f11cad4..fe0500c0af7a 100644
--- a/fs/gfs2/bmap.c
+++ b/fs/gfs2/bmap.c
@@ -1216,6 +1216,7 @@ static int do_grow(struct inode *inode, u64 size)
 {
 	struct gfs2_inode *ip = GFS2_I(inode);
 	struct gfs2_sbd *sdp = GFS2_SB(inode);
+	struct gfs2_alloc_parms ap = { .target = 1, };
 	struct buffer_head *dibh;
 	int error;
 	int unstuff = 0;
@@ -1226,7 +1227,7 @@ static int do_grow(struct inode *inode, u64 size)
 		if (error)
 			return error;
 
-		error = gfs2_inplace_reserve(ip, 1, 0);
+		error = gfs2_inplace_reserve(ip, &ap);
 		if (error)
 			goto do_grow_qunlock;
 		unstuff = 1;
diff --git a/fs/gfs2/file.c b/fs/gfs2/file.c
index 9ad20edc9c27..efc078f0ee4e 100644
--- a/fs/gfs2/file.c
+++ b/fs/gfs2/file.c
@@ -383,6 +383,7 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
 	struct inode *inode = file_inode(vma->vm_file);
 	struct gfs2_inode *ip = GFS2_I(inode);
 	struct gfs2_sbd *sdp = GFS2_SB(inode);
+	struct gfs2_alloc_parms ap = { .aflags = 0, };
 	unsigned long last_index;
 	u64 pos = page->index << PAGE_CACHE_SHIFT;
 	unsigned int data_blocks, ind_blocks, rblocks;
@@ -430,7 +431,8 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
 	if (ret)
 		goto out_unlock;
 	gfs2_write_calc_reserv(ip, PAGE_CACHE_SIZE, &data_blocks, &ind_blocks);
-	ret = gfs2_inplace_reserve(ip, data_blocks + ind_blocks, 0);
+	ap.target = data_blocks + ind_blocks;
+	ret = gfs2_inplace_reserve(ip, &ap);
 	if (ret)
 		goto out_quota_unlock;
 
@@ -800,6 +802,7 @@ static long gfs2_fallocate(struct file *file, int mode, loff_t offset,
 	struct inode *inode = file_inode(file);
 	struct gfs2_sbd *sdp = GFS2_SB(inode);
 	struct gfs2_inode *ip = GFS2_I(inode);
+	struct gfs2_alloc_parms ap = { .aflags = 0, };
 	unsigned int data_blocks = 0, ind_blocks = 0, rblocks;
 	loff_t bytes, max_bytes;
 	int error;
@@ -850,7 +853,8 @@ static long gfs2_fallocate(struct file *file, int mode, loff_t offset,
 retry:
 		gfs2_write_calc_reserv(ip, bytes, &data_blocks, &ind_blocks);
 
-		error = gfs2_inplace_reserve(ip, data_blocks + ind_blocks, 0);
+		ap.target = data_blocks + ind_blocks;
+		error = gfs2_inplace_reserve(ip, &ap);
 		if (error) {
 			if (error == -ENOSPC && bytes > sdp->sd_sb.sb_bsize) {
 				bytes >>= 1;
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index 8c8f110d8e35..082c8fa7fab9 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -285,6 +285,20 @@ struct gfs2_blkreserv {
 	unsigned int rs_qa_qd_num;
 };
 
+/*
+ * Allocation parameters
+ * @target: The number of blocks we'd ideally like to allocate
+ * @aflags: The flags (e.g. Orlov flag)
+ *
+ * The intent is to gradually expand this structure over time in
+ * order to give more information, e.g. alignment, min extent size
+ * to the allocation code.
+ */
+struct gfs2_alloc_parms {
+	u32 target;
+	u32 aflags;
+};
+
 enum {
 	GLF_LOCK			= 1,
 	GLF_DEMOTE			= 3,
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 4b79c19100d2..5a7ca3d1d1cf 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -379,6 +379,7 @@ static void munge_mode_uid_gid(const struct gfs2_inode *dip,
 static int alloc_dinode(struct gfs2_inode *ip, u32 flags)
 {
 	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
+	struct gfs2_alloc_parms ap = { .target = RES_DINODE, .aflags = flags, };
 	int error;
 	int dblocks = 1;
 
@@ -386,7 +387,7 @@ static int alloc_dinode(struct gfs2_inode *ip, u32 flags)
 	if (error)
 		goto out;
 
-	error = gfs2_inplace_reserve(ip, RES_DINODE, flags);
+	error = gfs2_inplace_reserve(ip, &ap);
 	if (error)
 		goto out_quota;
 
@@ -472,6 +473,7 @@ static int link_dinode(struct gfs2_inode *dip, const struct qstr *name,
 		       struct gfs2_inode *ip, int arq)
 {
 	struct gfs2_sbd *sdp = GFS2_SB(&dip->i_inode);
+	struct gfs2_alloc_parms ap = { .target = sdp->sd_max_dirres, };
 	int error;
 
 	if (arq) {
@@ -479,7 +481,7 @@ static int link_dinode(struct gfs2_inode *dip, const struct qstr *name,
 		if (error)
 			goto fail_quota_locks;
 
-		error = gfs2_inplace_reserve(dip, sdp->sd_max_dirres, 0);
+		error = gfs2_inplace_reserve(dip, &ap);
 		if (error)
 			goto fail_quota_locks;
 
@@ -874,11 +876,12 @@ static int gfs2_link(struct dentry *old_dentry, struct inode *dir,
 	error = 0;
 
 	if (alloc_required) {
+		struct gfs2_alloc_parms ap = { .target = sdp->sd_max_dirres, };
 		error = gfs2_quota_lock_check(dip);
 		if (error)
 			goto out_gunlock;
 
-		error = gfs2_inplace_reserve(dip, sdp->sd_max_dirres, 0);
+		error = gfs2_inplace_reserve(dip, &ap);
 		if (error)
 			goto out_gunlock_q;
 
@@ -1387,11 +1390,12 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
 		goto out_gunlock;
 
 	if (alloc_required) {
+		struct gfs2_alloc_parms ap = { .target = sdp->sd_max_dirres, };
 		error = gfs2_quota_lock_check(ndip);
 		if (error)
 			goto out_gunlock;
 
-		error = gfs2_inplace_reserve(ndip, sdp->sd_max_dirres, 0);
+		error = gfs2_inplace_reserve(ndip, &ap);
 		if (error)
 			goto out_gunlock_q;
 
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index db441359ee8c..8fe7a0a87c80 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -763,6 +763,7 @@ static int do_sync(unsigned int num_qd, struct gfs2_quota_data **qda)
 {
 	struct gfs2_sbd *sdp = (*qda)->qd_gl->gl_sbd;
 	struct gfs2_inode *ip = GFS2_I(sdp->sd_quota_inode);
+	struct gfs2_alloc_parms ap = { .aflags = 0, };
 	unsigned int data_blocks, ind_blocks;
 	struct gfs2_holder *ghs, i_gh;
 	unsigned int qx, x;
@@ -815,7 +816,8 @@ static int do_sync(unsigned int num_qd, struct gfs2_quota_data **qda)
 	blocks = num_qd * data_blocks + RES_DINODE + num_qd + 3;
 
 	reserved = 1 + (nalloc * (data_blocks + ind_blocks));
-	error = gfs2_inplace_reserve(ip, reserved, 0);
+	ap.target = reserved;
+	error = gfs2_inplace_reserve(ip, &ap);
 	if (error)
 		goto out_alloc;
 
@@ -1573,10 +1575,12 @@ static int gfs2_set_dqblk(struct super_block *sb, struct kqid qid,
 	if (gfs2_is_stuffed(ip))
 		alloc_required = 1;
 	if (alloc_required) {
+		struct gfs2_alloc_parms ap = { .aflags = 0, };
 		gfs2_write_calc_reserv(ip, sizeof(struct gfs2_quota),
 				       &data_blocks, &ind_blocks);
 		blocks = 1 + data_blocks + ind_blocks;
-		error = gfs2_inplace_reserve(ip, blocks, 0);
+		ap.target = blocks;
+		error = gfs2_inplace_reserve(ip, &ap);
 		if (error)
 			goto out_i;
 		blocks += gfs2_rg_blocks(ip, blocks);
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index d4d10fadab79..4f0984a607b3 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -1422,12 +1422,12 @@ static void rs_insert(struct gfs2_inode *ip)
  * rg_mblk_search - find a group of multiple free blocks to form a reservation
  * @rgd: the resource group descriptor
  * @ip: pointer to the inode for which we're reserving blocks
- * @requested: number of blocks required for this allocation
+ * @ap: the allocation parameters
  *
  */
 
 static void rg_mblk_search(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip,
-			   unsigned requested)
+			   const struct gfs2_alloc_parms *ap)
 {
 	struct gfs2_rbm rbm = { .rgd = rgd, };
 	u64 goal;
@@ -1440,7 +1440,7 @@ static void rg_mblk_search(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip,
 	if (S_ISDIR(inode->i_mode))
 		extlen = 1;
 	else {
-		extlen = max_t(u32, atomic_read(&rs->rs_sizehint), requested);
+		extlen = max_t(u32, atomic_read(&rs->rs_sizehint), ap->target);
 		extlen = clamp(extlen, RGRP_RSRV_MINBLKS, free_blocks);
 	}
 	if ((rgd->rd_free_clone < rgd->rd_reserved) || (free_blocks < extlen))
@@ -1831,12 +1831,12 @@ static bool gfs2_select_rgrp(struct gfs2_rgrpd **pos, const struct gfs2_rgrpd *b
 /**
  * gfs2_inplace_reserve - Reserve space in the filesystem
  * @ip: the inode to reserve space for
- * @requested: the number of blocks to be reserved
+ * @ap: the allocation parameters
  *
  * Returns: errno
  */
 
-int gfs2_inplace_reserve(struct gfs2_inode *ip, u32 requested, u32 aflags)
+int gfs2_inplace_reserve(struct gfs2_inode *ip, const struct gfs2_alloc_parms *ap)
 {
 	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
 	struct gfs2_rgrpd *begin = NULL;
@@ -1848,7 +1848,7 @@ int gfs2_inplace_reserve(struct gfs2_inode *ip, u32 requested, u32 aflags)
 
 	if (sdp->sd_args.ar_rgrplvb)
 		flags |= GL_SKIP;
-	if (gfs2_assert_warn(sdp, requested))
+	if (gfs2_assert_warn(sdp, ap->target))
 		return -EINVAL;
 	if (gfs2_rs_active(rs)) {
 		begin = rs->rs_rbm.rgd;
@@ -1857,7 +1857,7 @@ int gfs2_inplace_reserve(struct gfs2_inode *ip, u32 requested, u32 aflags)
 	} else {
 		rs->rs_rbm.rgd = begin = gfs2_blk2rgrpd(sdp, ip->i_goal, 1);
 	}
-	if (S_ISDIR(ip->i_inode.i_mode) && (aflags & GFS2_AF_ORLOV))
+	if (S_ISDIR(ip->i_inode.i_mode) && (ap->aflags & GFS2_AF_ORLOV))
 		skip = gfs2_orlov_skip(ip);
 	if (rs->rs_rbm.rgd == NULL)
 		return -EBADSLT;
@@ -1899,14 +1899,14 @@ int gfs2_inplace_reserve(struct gfs2_inode *ip, u32 requested, u32 aflags)
 
 		/* Get a reservation if we don't already have one */
 		if (!gfs2_rs_active(rs))
-			rg_mblk_search(rs->rs_rbm.rgd, ip, requested);
+			rg_mblk_search(rs->rs_rbm.rgd, ip, ap);
 
 		/* Skip rgrps when we can't get a reservation on first pass */
 		if (!gfs2_rs_active(rs) && (loops < 1))
 			goto check_rgrp;
 
 		/* If rgrp has enough free space, use it */
-		if (rs->rs_rbm.rgd->rd_free_clone >= requested) {
+		if (rs->rs_rbm.rgd->rd_free_clone >= ap->target) {
 			ip->i_rgd = rs->rs_rbm.rgd;
 			return 0;
 		}
diff --git a/fs/gfs2/rgrp.h b/fs/gfs2/rgrp.h
index 57ea16ba3414..3a10d2ffbbe7 100644
--- a/fs/gfs2/rgrp.h
+++ b/fs/gfs2/rgrp.h
@@ -40,7 +40,7 @@ extern void gfs2_rgrp_go_unlock(struct gfs2_holder *gh);
 extern struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip);
 
 #define GFS2_AF_ORLOV 1
-extern int gfs2_inplace_reserve(struct gfs2_inode *ip, u32 requested, u32 flags);
+extern int gfs2_inplace_reserve(struct gfs2_inode *ip, const struct gfs2_alloc_parms *ap);
 extern void gfs2_inplace_release(struct gfs2_inode *ip);
 
 extern int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *n,
diff --git a/fs/gfs2/xattr.c b/fs/gfs2/xattr.c
index ecd37f30ab91..8c6a6f6bdba9 100644
--- a/fs/gfs2/xattr.c
+++ b/fs/gfs2/xattr.c
@@ -723,6 +723,7 @@ static int ea_alloc_skeleton(struct gfs2_inode *ip, struct gfs2_ea_request *er,
 			     unsigned int blks,
 			     ea_skeleton_call_t skeleton_call, void *private)
 {
+	struct gfs2_alloc_parms ap = { .target = blks };
 	struct buffer_head *dibh;
 	int error;
 
@@ -734,7 +735,7 @@ static int ea_alloc_skeleton(struct gfs2_inode *ip, struct gfs2_ea_request *er,
 	if (error)
 		return error;
 
-	error = gfs2_inplace_reserve(ip, blks, 0);
+	error = gfs2_inplace_reserve(ip, &ap);
 	if (error)
 		goto out_gunlock_q;
 
-- 
cgit 


From 83924fb30038a6b425fe9d9d499e7d8b79d31d21 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sat, 28 Sep 2013 17:34:07 +0530
Subject: gpio: adnp: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-adnp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-adnp.c b/drivers/gpio/gpio-adnp.c
index c0f3fc44ab0e..6439e0e5881c 100644
--- a/drivers/gpio/gpio-adnp.c
+++ b/drivers/gpio/gpio-adnp.c
@@ -594,7 +594,7 @@ static struct i2c_driver adnp_i2c_driver = {
 	.driver = {
 		.name = "gpio-adnp",
 		.owner = THIS_MODULE,
-		.of_match_table = of_match_ptr(adnp_of_match),
+		.of_match_table = adnp_of_match,
 	},
 	.probe = adnp_i2c_probe,
 	.remove = adnp_i2c_remove,
-- 
cgit 


From 8675de924064481c15c895cba6f887d2b160613a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sat, 28 Sep 2013 17:34:08 +0530
Subject: gpio: clps711x: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-clps711x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-clps711x.c b/drivers/gpio/gpio-clps711x.c
index 0edaf2ce9266..0924f20fa47f 100644
--- a/drivers/gpio/gpio-clps711x.c
+++ b/drivers/gpio/gpio-clps711x.c
@@ -87,7 +87,7 @@ static struct platform_driver clps711x_gpio_driver = {
 	.driver	= {
 		.name		= "clps711x-gpio",
 		.owner		= THIS_MODULE,
-		.of_match_table	= of_match_ptr(clps711x_gpio_ids),
+		.of_match_table	= clps711x_gpio_ids,
 	},
 	.probe	= clps711x_gpio_probe,
 	.remove	= clps711x_gpio_remove,
-- 
cgit 


From e5560af49b2d0148c293cffaa53823227b0585b3 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sat, 28 Sep 2013 17:34:09 +0530
Subject: gpio: twl4030: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-twl4030.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-twl4030.c b/drivers/gpio/gpio-twl4030.c
index d8e4f6efcb29..0c7e891c8651 100644
--- a/drivers/gpio/gpio-twl4030.c
+++ b/drivers/gpio/gpio-twl4030.c
@@ -594,7 +594,7 @@ static struct platform_driver gpio_twl4030_driver = {
 	.driver = {
 		.name	= "twl4030_gpio",
 		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(twl_gpio_match),
+		.of_match_table = twl_gpio_match,
 	},
 	.probe		= gpio_twl4030_probe,
 	.remove		= gpio_twl4030_remove,
-- 
cgit 


From 56f8790102f48a4959a729ecdccff332591014e1 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 2 Oct 2013 13:43:13 +0300
Subject: Bluetooth: Introduce a new HCI_BREDR_ENABLED flag

To allow treating dual-mode (BR/EDR/LE) controllers as single-mode ones
(LE-only) we want to introduce a new HCI_BREDR_ENABLED flag to track
whether BR/EDR is enabled or not (previously we simply looked at the
feature bit with lmp_bredr_enabled).

This patch add the new flag and updates the relevant places to test
against it instead of using lmp_bredr_enabled. The flag is by default
enabled when registering an adapter and only cleared if necessary once
the local features have been read during the HCI init procedure.

We cannot completely block BR/EDR usage in case user space uses raw HCI
sockets but the patch tries to block this in places where possible, such
as the various BR/EDR specific ioctls.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/hci.h |  1 +
 net/bluetooth/hci_conn.c    |  3 +++
 net/bluetooth/hci_core.c    | 21 +++++++++++++++++++--
 net/bluetooth/mgmt.c        | 24 +++++++++++++-----------
 4 files changed, 36 insertions(+), 13 deletions(-)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 7ede2666dc75..4fa08d7b997d 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -122,6 +122,7 @@ enum {
 	HCI_LINK_SECURITY,
 	HCI_PERIODIC_INQ,
 	HCI_FAST_CONNECTABLE,
+	HCI_BREDR_ENABLED,
 };
 
 /* A mask for the flags that are supposed to remain when a reset happens
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index d2380e0c7df0..514148b7a66b 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -581,6 +581,9 @@ static struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
 {
 	struct hci_conn *acl;
 
+	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
+		return ERR_PTR(-ENOTSUPP);
+
 	acl = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst);
 	if (!acl) {
 		acl = hci_conn_add(hdev, ACL_LINK, dst);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 7cbdd33d9b38..14df032543b2 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -519,6 +519,8 @@ static void hci_init2_req(struct hci_request *req, unsigned long opt)
 
 	if (lmp_bredr_capable(hdev))
 		bredr_setup(req);
+	else
+		clear_bit(HCI_BREDR_ENABLED, &hdev->dev_flags);
 
 	if (lmp_le_capable(hdev))
 		le_setup(req);
@@ -1034,6 +1036,11 @@ int hci_inquiry(void __user *arg)
 		goto done;
 	}
 
+	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) {
+		err = -EOPNOTSUPP;
+		goto done;
+	}
+
 	hci_dev_lock(hdev);
 	if (inquiry_cache_age(hdev) > INQUIRY_CACHE_AGE_MAX ||
 	    inquiry_cache_empty(hdev) || ir.flags & IREQ_CACHE_FLUSH) {
@@ -1101,7 +1108,7 @@ static u8 create_ad(struct hci_dev *hdev, u8 *ptr)
 	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags))
 		flags |= LE_AD_GENERAL;
 
-	if (!lmp_bredr_capable(hdev))
+	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
 		flags |= LE_AD_NO_BREDR;
 
 	if (lmp_le_br_capable(hdev))
@@ -1493,6 +1500,11 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg)
 		goto done;
 	}
 
+	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) {
+		err = -EOPNOTSUPP;
+		goto done;
+	}
+
 	switch (cmd) {
 	case HCISETAUTH:
 		err = hci_req_sync(hdev, hci_auth_req, dr.dev_opt,
@@ -2318,8 +2330,13 @@ int hci_register_dev(struct hci_dev *hdev)
 
 	set_bit(HCI_SETUP, &hdev->dev_flags);
 
-	if (hdev->dev_type != HCI_AMP)
+	if (hdev->dev_type != HCI_AMP) {
 		set_bit(HCI_AUTO_OFF, &hdev->dev_flags);
+		/* Assume BR/EDR support until proven otherwise (such as
+		 * through reading supported features during init.
+		 */
+		set_bit(HCI_BREDR_ENABLED, &hdev->dev_flags);
+	}
 
 	write_lock(&hci_dev_list_lock);
 	list_add(&hdev->list, &hci_dev_list);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index ad3862949a2c..e1c41b0b7a75 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -408,7 +408,7 @@ static u32 get_current_settings(struct hci_dev *hdev)
 	if (test_bit(HCI_PAIRABLE, &hdev->dev_flags))
 		settings |= MGMT_SETTING_PAIRABLE;
 
-	if (lmp_bredr_capable(hdev))
+	if (test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
 		settings |= MGMT_SETTING_BREDR;
 
 	if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags))
@@ -929,7 +929,7 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 
 	BT_DBG("request for %s", hdev->name);
 
-	if (!lmp_bredr_capable(hdev))
+	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
 				 MGMT_STATUS_NOT_SUPPORTED);
 
@@ -1085,7 +1085,7 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 
 	BT_DBG("request for %s", hdev->name);
 
-	if (!lmp_bredr_capable(hdev))
+	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
 				  MGMT_STATUS_NOT_SUPPORTED);
 
@@ -1208,7 +1208,7 @@ static int set_link_security(struct sock *sk, struct hci_dev *hdev, void *data,
 
 	BT_DBG("request for %s", hdev->name);
 
-	if (!lmp_bredr_capable(hdev))
+	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
 				  MGMT_STATUS_NOT_SUPPORTED);
 
@@ -1342,7 +1342,7 @@ static int set_hs(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 
 	BT_DBG("request for %s", hdev->name);
 
-	if (!lmp_bredr_capable(hdev))
+	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
 				  MGMT_STATUS_NOT_SUPPORTED);
 
@@ -1409,7 +1409,7 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 				  MGMT_STATUS_INVALID_PARAMS);
 
 	/* LE-only devices do not allow toggling LE on/off */
-	if (!lmp_bredr_capable(hdev))
+	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
 				  MGMT_STATUS_REJECTED);
 
@@ -1720,7 +1720,7 @@ static int set_dev_class(struct sock *sk, struct hci_dev *hdev, void *data,
 
 	BT_DBG("request for %s", hdev->name);
 
-	if (!lmp_bredr_capable(hdev))
+	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_DEV_CLASS,
 				  MGMT_STATUS_NOT_SUPPORTED);
 
@@ -2803,7 +2803,7 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev,
 
 	switch (hdev->discovery.type) {
 	case DISCOV_TYPE_BREDR:
-		if (!lmp_bredr_capable(hdev)) {
+		if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) {
 			err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
 					 MGMT_STATUS_NOT_SUPPORTED);
 			mgmt_pending_remove(cmd);
@@ -2835,7 +2835,7 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev,
 		}
 
 		if (hdev->discovery.type == DISCOV_TYPE_INTERLEAVED &&
-		    !lmp_bredr_capable(hdev)) {
+		    !test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) {
 			err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
 					 MGMT_STATUS_NOT_SUPPORTED);
 			mgmt_pending_remove(cmd);
@@ -3282,7 +3282,8 @@ static int set_fast_connectable(struct sock *sk, struct hci_dev *hdev,
 
 	BT_DBG("%s", hdev->name);
 
-	if (!lmp_bredr_capable(hdev) || hdev->hci_ver < BLUETOOTH_VER_1_2)
+	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags) ||
+	    hdev->hci_ver < BLUETOOTH_VER_1_2)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
 				  MGMT_STATUS_NOT_SUPPORTED);
 
@@ -3646,7 +3647,8 @@ static int powered_update_hci(struct hci_dev *hdev)
 			    sizeof(link_sec), &link_sec);
 
 	if (lmp_bredr_capable(hdev)) {
-		set_bredr_scan(&req);
+		if (test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
+			set_bredr_scan(&req);
 		update_class(&req);
 		update_name(&req);
 		update_eir(&req);
-- 
cgit 


From 0663ca2a032eea12480a8f86fe08bef9d72f8faf Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 2 Oct 2013 13:43:14 +0300
Subject: Bluetooth: Add a new mgmt_set_bredr command

This patch introduces a new mgmt command for enabling/disabling BR/EDR
functionality. This can be convenient when one wants to make a dual-mode
controller behave like a single-mode one. The command is only available
for dual-mode controllers and requires that LE is enabled before using
it. The BR/EDR setting can be enabled at any point, however disabling it
requires the controller to be powered off (otherwise a "rejected"
response will be sent).

Disabling the BR/EDR setting will automatically disable all other BR/EDR
related settings.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/mgmt.h |   2 +
 net/bluetooth/hci_event.c    |   5 ++
 net/bluetooth/mgmt.c         | 120 +++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 127 insertions(+)

diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index 421d7633a91f..7347df800a2e 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -354,6 +354,8 @@ struct mgmt_cp_set_device_id {
 
 #define MGMT_OP_SET_ADVERTISING		0x0029
 
+#define MGMT_OP_SET_BREDR		0x002A
+
 #define MGMT_EV_CMD_COMPLETE		0x0001
 struct mgmt_ev_cmd_complete {
 	__le16	opcode;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index d171c04bddbd..4785ab0795f5 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -297,6 +297,11 @@ static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb)
 		goto done;
 	}
 
+	/* We need to ensure that we set this back on if someone changed
+	 * the scan mode through a raw HCI socket.
+	 */
+	set_bit(HCI_BREDR_ENABLED, &hdev->dev_flags);
+
 	old_pscan = test_and_clear_bit(HCI_PSCAN, &hdev->flags);
 	old_iscan = test_and_clear_bit(HCI_ISCAN, &hdev->flags);
 
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index e1c41b0b7a75..dcce0cf1d7cc 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -75,6 +75,7 @@ static const u16 mgmt_commands[] = {
 	MGMT_OP_UNBLOCK_DEVICE,
 	MGMT_OP_SET_DEVICE_ID,
 	MGMT_OP_SET_ADVERTISING,
+	MGMT_OP_SET_BREDR,
 };
 
 static const u16 mgmt_events[] = {
@@ -3337,6 +3338,121 @@ unlock:
 	return err;
 }
 
+static void set_bredr_complete(struct hci_dev *hdev, u8 status)
+{
+	struct pending_cmd *cmd;
+
+	BT_DBG("status 0x%02x", status);
+
+	hci_dev_lock(hdev);
+
+	cmd = mgmt_pending_find(MGMT_OP_SET_BREDR, hdev);
+	if (!cmd)
+		goto unlock;
+
+	if (status) {
+		u8 mgmt_err = mgmt_status(status);
+
+		/* We need to restore the flag if related HCI commands
+		 * failed.
+		 */
+		clear_bit(HCI_BREDR_ENABLED, &hdev->dev_flags);
+
+		cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
+	} else {
+		send_settings_rsp(cmd->sk, MGMT_OP_SET_BREDR, hdev);
+		new_settings(hdev, cmd->sk);
+	}
+
+	mgmt_pending_remove(cmd);
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
+static int set_bredr(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
+{
+	struct mgmt_mode *cp = data;
+	struct pending_cmd *cmd;
+	struct hci_request req;
+	int err;
+
+	BT_DBG("request for %s", hdev->name);
+
+	if (!lmp_bredr_capable(hdev) || !lmp_le_capable(hdev))
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
+				  MGMT_STATUS_NOT_SUPPORTED);
+
+	if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags))
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
+				  MGMT_STATUS_REJECTED);
+
+	if (cp->val != 0x00 && cp->val != 0x01)
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
+				  MGMT_STATUS_INVALID_PARAMS);
+
+	hci_dev_lock(hdev);
+
+	if (cp->val == test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) {
+		err = send_settings_rsp(sk, MGMT_OP_SET_BREDR, hdev);
+		goto unlock;
+	}
+
+	if (!hdev_is_powered(hdev)) {
+		if (!cp->val) {
+			clear_bit(HCI_CONNECTABLE, &hdev->dev_flags);
+			clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags);
+			clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
+			clear_bit(HCI_LINK_SECURITY, &hdev->dev_flags);
+			clear_bit(HCI_FAST_CONNECTABLE, &hdev->dev_flags);
+			clear_bit(HCI_HS_ENABLED, &hdev->dev_flags);
+		}
+
+		change_bit(HCI_BREDR_ENABLED, &hdev->dev_flags);
+
+		err = send_settings_rsp(sk, MGMT_OP_SET_BREDR, hdev);
+		if (err < 0)
+			goto unlock;
+
+		err = new_settings(hdev, sk);
+		goto unlock;
+	}
+
+	/* Reject disabling when powered on */
+	if (!cp->val) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
+				 MGMT_STATUS_REJECTED);
+		goto unlock;
+	}
+
+	if (mgmt_pending_find(MGMT_OP_SET_BREDR, hdev)) {
+		err = cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
+				 MGMT_STATUS_BUSY);
+		goto unlock;
+	}
+
+	cmd = mgmt_pending_add(sk, MGMT_OP_SET_BREDR, hdev, data, len);
+	if (!cmd) {
+		err = -ENOMEM;
+		goto unlock;
+	}
+
+	/* We need to flip the bit already here so that hci_update_ad
+	 * generates the correct flags.
+	 */
+	set_bit(HCI_BREDR_ENABLED, &hdev->dev_flags);
+
+	hci_req_init(&req, hdev);
+	hci_update_ad(&req);
+	err = hci_req_run(&req, set_bredr_complete);
+	if (err < 0)
+		mgmt_pending_remove(cmd);
+
+unlock:
+	hci_dev_unlock(hdev);
+	return err;
+}
+
 static bool ltk_is_valid(struct mgmt_ltk_info *key)
 {
 	if (key->authenticated != 0x00 && key->authenticated != 0x01)
@@ -3452,6 +3568,7 @@ static const struct mgmt_handler {
 	{ unblock_device,         false, MGMT_UNBLOCK_DEVICE_SIZE },
 	{ set_device_id,          false, MGMT_SET_DEVICE_ID_SIZE },
 	{ set_advertising,        false, MGMT_SETTING_SIZE },
+	{ set_bredr,              false, MGMT_SETTING_SIZE },
 };
 
 
@@ -3633,6 +3750,9 @@ static int powered_update_hci(struct hci_dev *hdev)
 		    cp.simul != lmp_host_le_br_capable(hdev))
 			hci_req_add(&req, HCI_OP_WRITE_LE_HOST_SUPPORTED,
 				    sizeof(cp), &cp);
+
+		/* In case BR/EDR was toggled during the AUTO_OFF phase */
+		hci_update_ad(&req);
 	}
 
 	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags)) {
-- 
cgit 


From 4bbd6f2e4902b18fcf5861d36588729c93ecda40 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Sun, 29 Sep 2013 21:00:37 +0100
Subject: gpio: arizona: Use the of_node from the Arizona device

We need to use the of_node from the main Arizona device as that
holds our configuration.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-arizona.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpio/gpio-arizona.c b/drivers/gpio/gpio-arizona.c
index a2bec3c6db94..dceb5dcf9d16 100644
--- a/drivers/gpio/gpio-arizona.c
+++ b/drivers/gpio/gpio-arizona.c
@@ -109,6 +109,9 @@ static int arizona_gpio_probe(struct platform_device *pdev)
 	arizona_gpio->arizona = arizona;
 	arizona_gpio->gpio_chip = template_chip;
 	arizona_gpio->gpio_chip.dev = &pdev->dev;
+#ifdef CONFIG_OF_GPIO
+	arizona_gpio->gpio_chip.of_node = arizona->dev->of_node;
+#endif
 
 	switch (arizona->type) {
 	case WM5102:
-- 
cgit 


From a0cdf960bec0b040307229bc25c40fa33c20dff1 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 2 Oct 2013 00:27:02 -0700
Subject: Bluetooth: Restrict disabling of HS when controller is powered off

Disabling the high speed setting when the controller is powered on has
too many side effects that are not taken care of. And in general it
is not an useful operation anyway. So just make such a command fail
with a rejection error message.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index dcce0cf1d7cc..4ac31695946b 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1353,10 +1353,17 @@ static int set_hs(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 
 	hci_dev_lock(hdev);
 
-	if (cp->val)
+	if (cp->val) {
 		changed = !test_and_set_bit(HCI_HS_ENABLED, &hdev->dev_flags);
-	else
+	} else {
+		if (hdev_is_powered(hdev)) {
+			err = cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
+					 MGMT_STATUS_REJECTED);
+			goto unlock;
+		}
+
 		changed = test_and_clear_bit(HCI_HS_ENABLED, &hdev->dev_flags);
+	}
 
 	err = send_settings_rsp(sk, MGMT_OP_SET_HS, hdev);
 	if (err < 0)
-- 
cgit 


From d13eafce2c892d57f1eb243e43dfe48b4626006d Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 2 Oct 2013 04:41:30 -0700
Subject: Bluetooth: Add management command for setting static address

On dual-mode BR/EDR/LE and LE only controllers it is possible
to configure a random address. There are two types or random
addresses, one is static and the other private. Since the
random private addresses require special privacy feature to
be supported, the configuration of these two are kept separate.

This command allows for setting the static random address. It is
only supported on controllers with LE support. The static random
address is suppose to be valid for the lifetime of the controller
or at least until the next power cycle. To ensure such behavior,
setting of the address is limited to when the controller is
powered off.

The special BDADDR_ANY address (00:00:00:00:00:00) can be used to
disable the static address. This is also the default value.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci.h      |  2 ++
 include/net/bluetooth/hci_core.h |  1 +
 include/net/bluetooth/mgmt.h     |  6 +++++
 net/bluetooth/mgmt.c             | 49 ++++++++++++++++++++++++++++++++++++++++
 4 files changed, 58 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 4fa08d7b997d..d7fd825ed2ce 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -978,6 +978,8 @@ struct hci_rp_le_read_local_features {
 	__u8     features[8];
 } __packed;
 
+#define HCI_OP_LE_SET_RANDOM_ADDR	0x2005
+
 #define HCI_OP_LE_READ_ADV_TX_POWER	0x2007
 struct hci_rp_le_read_adv_tx_power {
 	__u8	status;
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 26cc9f7858cd..e09c30577b3a 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -140,6 +140,7 @@ struct hci_dev {
 	__u8		bus;
 	__u8		dev_type;
 	bdaddr_t	bdaddr;
+	bdaddr_t	static_addr;
 	__u8		dev_name[HCI_MAX_NAME_LENGTH];
 	__u8		short_name[HCI_MAX_SHORT_NAME_LENGTH];
 	__u8		eir[HCI_MAX_EIR_LENGTH];
diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index 7347df800a2e..2ad433bb9a2e 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -356,6 +356,12 @@ struct mgmt_cp_set_device_id {
 
 #define MGMT_OP_SET_BREDR		0x002A
 
+#define MGMT_OP_SET_STATIC_ADDRESS	0x002B
+struct mgmt_cp_set_static_address {
+	bdaddr_t bdaddr;
+} __packed;
+#define MGMT_SET_STATIC_ADDRESS_SIZE	6
+
 #define MGMT_EV_CMD_COMPLETE		0x0001
 struct mgmt_ev_cmd_complete {
 	__le16	opcode;
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 4ac31695946b..b87163238c10 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -76,6 +76,7 @@ static const u16 mgmt_commands[] = {
 	MGMT_OP_SET_DEVICE_ID,
 	MGMT_OP_SET_ADVERTISING,
 	MGMT_OP_SET_BREDR,
+	MGMT_OP_SET_STATIC_ADDRESS,
 };
 
 static const u16 mgmt_events[] = {
@@ -3247,6 +3248,46 @@ unlock:
 	return err;
 }
 
+static int set_static_address(struct sock *sk, struct hci_dev *hdev,
+			      void *data, u16 len)
+{
+	struct mgmt_cp_set_static_address *cp = data;
+	int err;
+
+	BT_DBG("%s", hdev->name);
+
+	if (!lmp_le_capable(hdev))
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_STATIC_ADDRESS,
+				  MGMT_STATUS_NOT_SUPPORTED);
+
+	if (hdev_is_powered(hdev))
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_STATIC_ADDRESS,
+				  MGMT_STATUS_REJECTED);
+
+	if (bacmp(&cp->bdaddr, BDADDR_ANY)) {
+		if (!bacmp(&cp->bdaddr, BDADDR_NONE))
+			return cmd_status(sk, hdev->id,
+					  MGMT_OP_SET_STATIC_ADDRESS,
+					  MGMT_STATUS_INVALID_PARAMS);
+
+		/* Two most significant bits shall be set */
+		if ((cp->bdaddr.b[5] & 0xc0) != 0xc0)
+			return cmd_status(sk, hdev->id,
+					  MGMT_OP_SET_STATIC_ADDRESS,
+					  MGMT_STATUS_INVALID_PARAMS);
+	}
+
+	hci_dev_lock(hdev);
+
+	bacpy(&hdev->static_addr, &cp->bdaddr);
+
+	err = cmd_complete(sk, hdev->id, MGMT_OP_SET_STATIC_ADDRESS, 0, NULL, 0);
+
+	hci_dev_unlock(hdev);
+
+	return err;
+}
+
 static void fast_connectable_complete(struct hci_dev *hdev, u8 status)
 {
 	struct pending_cmd *cmd;
@@ -3576,6 +3617,7 @@ static const struct mgmt_handler {
 	{ set_device_id,          false, MGMT_SET_DEVICE_ID_SIZE },
 	{ set_advertising,        false, MGMT_SETTING_SIZE },
 	{ set_bredr,              false, MGMT_SETTING_SIZE },
+	{ set_static_address,     false, MGMT_SET_STATIC_ADDRESS_SIZE },
 };
 
 
@@ -3762,6 +3804,13 @@ static int powered_update_hci(struct hci_dev *hdev)
 		hci_update_ad(&req);
 	}
 
+	if (lmp_le_capable(hdev)) {
+		/* Set random address to static address if configured */
+		if (bacmp(&hdev->static_addr, BDADDR_ANY))
+			hci_req_add(&req, HCI_OP_LE_SET_RANDOM_ADDR, 6,
+				    &hdev->static_addr);
+	}
+
 	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags)) {
 		u8 adv = 0x01;
 
-- 
cgit 


From e6fe798652bfdcdde32a33c2758853e1a8f0c759 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 2 Oct 2013 15:45:22 +0300
Subject: Bluetooth: Fix REJECTED vs NOT_SUPPORTED mgmt responses

The REJECTED management response should mainly be used when the adapter
is in a state where we cannot accept some command or a specific
parameter value. The NOT_SUPPORTED response in turn means that the
adapter really cannot support the command or parameter value.

This patch fixes this distinction and adds two helper functions to
easily get the appropriate LE or BR/EDR related status response.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 76 +++++++++++++++++++++++++++++++++++-----------------
 1 file changed, 51 insertions(+), 25 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index b87163238c10..461d5bb245a8 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -920,20 +920,41 @@ static void cmd_status_rsp(struct pending_cmd *cmd, void *data)
 	mgmt_pending_remove(cmd);
 }
 
+static u8 mgmt_bredr_support(struct hci_dev *hdev)
+{
+	if (!lmp_bredr_capable(hdev))
+		return MGMT_STATUS_NOT_SUPPORTED;
+	else if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
+		return MGMT_STATUS_REJECTED;
+	else
+		return MGMT_STATUS_SUCCESS;
+}
+
+static u8 mgmt_le_support(struct hci_dev *hdev)
+{
+	if (!lmp_le_capable(hdev))
+		return MGMT_STATUS_NOT_SUPPORTED;
+	else if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags))
+		return MGMT_STATUS_REJECTED;
+	else
+		return MGMT_STATUS_SUCCESS;
+}
+
 static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 			    u16 len)
 {
 	struct mgmt_cp_set_discoverable *cp = data;
 	struct pending_cmd *cmd;
 	u16 timeout;
-	u8 scan;
+	u8 scan, status;
 	int err;
 
 	BT_DBG("request for %s", hdev->name);
 
-	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
+	status = mgmt_bredr_support(hdev);
+	if (status)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
-				 MGMT_STATUS_NOT_SUPPORTED);
+				  status);
 
 	if (cp->val != 0x00 && cp->val != 0x01)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
@@ -1082,14 +1103,15 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 	struct mgmt_mode *cp = data;
 	struct pending_cmd *cmd;
 	struct hci_request req;
-	u8 scan;
+	u8 scan, status;
 	int err;
 
 	BT_DBG("request for %s", hdev->name);
 
-	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
+	status = mgmt_bredr_support(hdev);
+	if (status)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
-				  MGMT_STATUS_NOT_SUPPORTED);
+				  status);
 
 	if (cp->val != 0x00 && cp->val != 0x01)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
@@ -1205,14 +1227,15 @@ static int set_link_security(struct sock *sk, struct hci_dev *hdev, void *data,
 {
 	struct mgmt_mode *cp = data;
 	struct pending_cmd *cmd;
-	u8 val;
+	u8 val, status;
 	int err;
 
 	BT_DBG("request for %s", hdev->name);
 
-	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
+	status = mgmt_bredr_support(hdev);
+	if (status)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
-				  MGMT_STATUS_NOT_SUPPORTED);
+				  status);
 
 	if (cp->val != 0x00 && cp->val != 0x01)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
@@ -1340,13 +1363,14 @@ static int set_hs(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 {
 	struct mgmt_mode *cp = data;
 	bool changed;
+	u8 status;
 	int err;
 
 	BT_DBG("request for %s", hdev->name);
 
-	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
-		return cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
-				  MGMT_STATUS_NOT_SUPPORTED);
+	status = mgmt_bredr_support(hdev);
+	if (status)
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_HS, status);
 
 	if (cp->val != 0x00 && cp->val != 0x01)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
@@ -2776,6 +2800,7 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev,
 	struct hci_request req;
 	/* General inquiry access code (GIAC) */
 	u8 lap[3] = { 0x33, 0x8b, 0x9e };
+	u8 status;
 	int err;
 
 	BT_DBG("%s", hdev->name);
@@ -2812,9 +2837,10 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev,
 
 	switch (hdev->discovery.type) {
 	case DISCOV_TYPE_BREDR:
-		if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) {
+		status = mgmt_bredr_support(hdev);
+		if (status) {
 			err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
-					 MGMT_STATUS_NOT_SUPPORTED);
+					 status);
 			mgmt_pending_remove(cmd);
 			goto failed;
 		}
@@ -2836,9 +2862,10 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev,
 
 	case DISCOV_TYPE_LE:
 	case DISCOV_TYPE_INTERLEAVED:
-		if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) {
+		status = mgmt_le_support(hdev);
+		if (status) {
 			err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
-					 MGMT_STATUS_NOT_SUPPORTED);
+					 status);
 			mgmt_pending_remove(cmd);
 			goto failed;
 		}
@@ -3182,18 +3209,15 @@ static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data, u1
 	struct mgmt_mode *cp = data;
 	struct pending_cmd *cmd;
 	struct hci_request req;
-	u8 val, enabled;
+	u8 val, enabled, status;
 	int err;
 
 	BT_DBG("request for %s", hdev->name);
 
-	if (!lmp_le_capable(hdev))
-		return cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
-				  MGMT_STATUS_NOT_SUPPORTED);
-
-	if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags))
+	status = mgmt_le_support(hdev);
+	if (status)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
-				  MGMT_STATUS_REJECTED);
+				  status);
 
 	if (cp->val != 0x00 && cp->val != 0x01)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
@@ -3252,13 +3276,15 @@ static int set_static_address(struct sock *sk, struct hci_dev *hdev,
 			      void *data, u16 len)
 {
 	struct mgmt_cp_set_static_address *cp = data;
+	u8 status;
 	int err;
 
 	BT_DBG("%s", hdev->name);
 
-	if (!lmp_le_capable(hdev))
+	status = mgmt_le_support(hdev);
+	if (status)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_STATIC_ADDRESS,
-				  MGMT_STATUS_NOT_SUPPORTED);
+				  status);
 
 	if (hdev_is_powered(hdev))
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_STATIC_ADDRESS,
-- 
cgit 


From 7e9dee0ca27f0bcedb4fad728bb0dc86da0863c7 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Wed, 2 Oct 2013 13:40:09 +0200
Subject: ARM: ux500: correct I2C address of ambient light sensor

The ambient light sensor is places at address 0x29 nothing else.
This patch makes the ambient light sensor probe again.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-href.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/ste-href.dtsi b/arch/arm/boot/dts/ste-href.dtsi
index d6753261796b..a561bc39e6ab 100644
--- a/arch/arm/boot/dts/ste-href.dtsi
+++ b/arch/arm/boot/dts/ste-href.dtsi
@@ -103,7 +103,7 @@
 			};
 			bh1780@29 {
 				compatible = "rohm,bh1780gli";
-				reg = <0x33>;
+				reg = <0x29>;
 			};
 		};
 
-- 
cgit 


From 0ca3399fc822ff65120f6a59f6d4b82ff462559f Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Wed, 2 Oct 2013 14:56:49 +0200
Subject: ARM: ux500: fix proximity sensor button

The proximity sensor is connected to pin AH12 on newer HREFs,
that corresponds to pin offset 25 on gpio5, not gpio6.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-hrefv60plus.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/ste-hrefv60plus.dts b/arch/arm/boot/dts/ste-hrefv60plus.dts
index bb3cfc7280e8..111546802667 100644
--- a/arch/arm/boot/dts/ste-hrefv60plus.dts
+++ b/arch/arm/boot/dts/ste-hrefv60plus.dts
@@ -20,7 +20,7 @@
 
 	gpio_keys {
 		button@1 {
-			gpios = <&gpio6 25 0x4>;
+			gpios = <&gpio5 25 0x4>;
 		};
 	};
 
-- 
cgit 


From 11802b299f3337441d649dcb035a98ec1ff67ade Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 2 Oct 2013 16:02:24 +0300
Subject: Bluetooth: Fix advertising data flags with disabled BR/EDR

We shouldn't include the simultaneous LE & BR/EDR flags in the LE
advertising data if BR/EDR is disabled on a dual-mode controller. This
patch fixes this issue and ensures that the create_ad function generates
the correct flags when BR/EDR is disabled.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/hci_core.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 14df032543b2..82dbdc6a7e9e 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1108,14 +1108,14 @@ static u8 create_ad(struct hci_dev *hdev, u8 *ptr)
 	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags))
 		flags |= LE_AD_GENERAL;
 
-	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
+	if (test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) {
+		if (lmp_le_br_capable(hdev))
+			flags |= LE_AD_SIM_LE_BREDR_CTRL;
+		if (lmp_host_le_br_capable(hdev))
+			flags |= LE_AD_SIM_LE_BREDR_HOST;
+	} else {
 		flags |= LE_AD_NO_BREDR;
-
-	if (lmp_le_br_capable(hdev))
-		flags |= LE_AD_SIM_LE_BREDR_CTRL;
-
-	if (lmp_host_le_br_capable(hdev))
-		flags |= LE_AD_SIM_LE_BREDR_HOST;
+	}
 
 	if (flags) {
 		BT_DBG("adv flags 0x%02x", flags);
-- 
cgit 


From a49be8f231ee0815d149d6d6c23dcc56a6f68410 Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Mon, 30 Sep 2013 21:02:07 +0200
Subject: usb: musb: am35x: use SIMPLE_DEV_PM_OPS

This makes am35x_pm_ops const and will stub the struct out in case
CONFIG_PM_SLEEP is not set.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/musb/am35x.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c
index 790b22b296b1..ca45b39db5b9 100644
--- a/drivers/usb/musb/am35x.c
+++ b/drivers/usb/musb/am35x.c
@@ -599,23 +599,16 @@ static int am35x_resume(struct device *dev)
 
 	return 0;
 }
-
-static struct dev_pm_ops am35x_pm_ops = {
-	.suspend	= am35x_suspend,
-	.resume		= am35x_resume,
-};
-
-#define DEV_PM_OPS	&am35x_pm_ops
-#else
-#define DEV_PM_OPS	NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(am35x_pm_ops, am35x_suspend, am35x_resume);
+
 static struct platform_driver am35x_driver = {
 	.probe		= am35x_probe,
 	.remove		= am35x_remove,
 	.driver		= {
 		.name	= "musb-am35x",
-		.pm	= DEV_PM_OPS,
+		.pm	= &am35x_pm_ops,
 	},
 };
 
-- 
cgit 


From 0967313b6fe14f34d87b1ef278f7771ed8900eb1 Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Mon, 30 Sep 2013 21:02:08 +0200
Subject: usb: musb: blackfin: use SIMPLE_DEV_PM_OPS

This makes bfin_pm_ops const and will stub the struct out in case
CONFIG_PM_SLEEP is not set.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/musb/blackfin.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
index 72e2056b6082..d9692f78e227 100644
--- a/drivers/usb/musb/blackfin.c
+++ b/drivers/usb/musb/blackfin.c
@@ -561,23 +561,16 @@ static int bfin_resume(struct device *dev)
 
 	return 0;
 }
-
-static struct dev_pm_ops bfin_pm_ops = {
-	.suspend	= bfin_suspend,
-	.resume		= bfin_resume,
-};
-
-#define DEV_PM_OPS	&bfin_pm_ops
-#else
-#define DEV_PM_OPS	NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(bfin_pm_ops, bfin_suspend, bfin_resume);
+
 static struct platform_driver bfin_driver = {
 	.probe		= bfin_probe,
 	.remove		= __exit_p(bfin_remove),
 	.driver		= {
 		.name	= "musb-blackfin",
-		.pm	= DEV_PM_OPS,
+		.pm	= &bfin_pm_ops,
 	},
 };
 
-- 
cgit 


From a89adb098ac33934b6b0a773853a12220376d600 Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Mon, 30 Sep 2013 21:02:09 +0200
Subject: usb: musb: ux500: use SIMPLE_DEV_PM_OPS

This removes the DEV_PM_OPS macro and brings this file in line with the
other musb platform drivers.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/musb/ux500.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c
index 59256b12f746..f483d1924c28 100644
--- a/drivers/usb/musb/ux500.c
+++ b/drivers/usb/musb/ux500.c
@@ -376,17 +376,10 @@ static int ux500_resume(struct device *dev)
 
 	return 0;
 }
-
-static const struct dev_pm_ops ux500_pm_ops = {
-	.suspend	= ux500_suspend,
-	.resume		= ux500_resume,
-};
-
-#define DEV_PM_OPS	(&ux500_pm_ops)
-#else
-#define DEV_PM_OPS	NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(ux500_pm_ops, ux500_suspend, ux500_resume);
+
 static const struct of_device_id ux500_match[] = {
         { .compatible = "stericsson,db8500-musb", },
         {}
@@ -397,7 +390,7 @@ static struct platform_driver ux500_driver = {
 	.remove		= ux500_remove,
 	.driver		= {
 		.name	= "musb-ux500",
-		.pm	= DEV_PM_OPS,
+		.pm	= &ux500_pm_ops,
 		.of_match_table = ux500_match,
 	},
 };
-- 
cgit 


From a023da331c1d2a26669161031fe6e2c8e0a2009e Mon Sep 17 00:00:00 2001
From: Pavel Machek <pavel@denx.de>
Date: Mon, 30 Sep 2013 14:56:02 +0200
Subject: usb: gadget: s3c-hsotg: fix CodingStyle issues

checkpatch.pl has some valid complaints about style in s3c-hsotg.c:
- macro with 'if' should be really enclosed in 'do {} while (0)'
- seq_puts() is going to be slightly faster than seq_printf()
- pr_err() is shorter than printk(KERN_ERR ...)

Signed-off-by: Pavel Machek <pavel@denx.de>
[bzolnier: minor fixes]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/s3c-hsotg.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 6bddf1aa2347..24973d71e29a 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -2092,12 +2092,14 @@ static void kill_all_requests(struct s3c_hsotg *hsotg,
 }
 
 #define call_gadget(_hs, _entry) \
+do { \
 	if ((_hs)->gadget.speed != USB_SPEED_UNKNOWN &&	\
 	    (_hs)->driver && (_hs)->driver->_entry) { \
 		spin_unlock(&_hs->lock); \
 		(_hs)->driver->_entry(&(_hs)->gadget); \
 		spin_lock(&_hs->lock); \
-		}
+	} \
+} while (0)
 
 /**
  * s3c_hsotg_disconnect - disconnect service
@@ -2903,7 +2905,7 @@ static int s3c_hsotg_udc_start(struct usb_gadget *gadget,
 	int ret;
 
 	if (!hsotg) {
-		printk(KERN_ERR "%s: called with no device\n", __func__);
+		pr_err("%s: called with no device\n", __func__);
 		return -ENODEV;
 	}
 
@@ -3200,7 +3202,7 @@ static int state_show(struct seq_file *seq, void *v)
 		   readl(regs + GNPTXSTS),
 		   readl(regs + GRXSTSR));
 
-	seq_printf(seq, "\nEndpoint status:\n");
+	seq_puts(seq, "\nEndpoint status:\n");
 
 	for (idx = 0; idx < 15; idx++) {
 		u32 in, out;
@@ -3217,7 +3219,7 @@ static int state_show(struct seq_file *seq, void *v)
 		seq_printf(seq, ", DIEPTSIZ=0x%08x, DOEPTSIZ=0x%08x",
 			   in, out);
 
-		seq_printf(seq, "\n");
+		seq_puts(seq, "\n");
 	}
 
 	return 0;
@@ -3251,7 +3253,7 @@ static int fifo_show(struct seq_file *seq, void *v)
 	u32 val;
 	int idx;
 
-	seq_printf(seq, "Non-periodic FIFOs:\n");
+	seq_puts(seq, "Non-periodic FIFOs:\n");
 	seq_printf(seq, "RXFIFO: Size %d\n", readl(regs + GRXFSIZ));
 
 	val = readl(regs + GNPTXFSIZ);
@@ -3259,7 +3261,7 @@ static int fifo_show(struct seq_file *seq, void *v)
 		   val >> GNPTXFSIZ_NPTxFDep_SHIFT,
 		   val & GNPTXFSIZ_NPTxFStAddr_MASK);
 
-	seq_printf(seq, "\nPeriodic TXFIFOs:\n");
+	seq_puts(seq, "\nPeriodic TXFIFOs:\n");
 
 	for (idx = 1; idx <= 15; idx++) {
 		val = readl(regs + DPTXFSIZn(idx));
@@ -3330,7 +3332,7 @@ static int ep_show(struct seq_file *seq, void *v)
 		   readl(regs + DIEPTSIZ(index)),
 		   readl(regs + DOEPTSIZ(index)));
 
-	seq_printf(seq, "\n");
+	seq_puts(seq, "\n");
 	seq_printf(seq, "mps %d\n", ep->ep.maxpacket);
 	seq_printf(seq, "total_data=%ld\n", ep->total_data);
 
@@ -3341,7 +3343,7 @@ static int ep_show(struct seq_file *seq, void *v)
 
 	list_for_each_entry(req, &ep->queue, queue) {
 		if (--show_limit < 0) {
-			seq_printf(seq, "not showing more requests...\n");
+			seq_puts(seq, "not showing more requests...\n");
 			break;
 		}
 
-- 
cgit 


From 9ab8cf372977d1f89ebeb6201b6cf7a6774b9272 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 2 Oct 2013 05:18:31 -0700
Subject: Bluetooth: Increment management interface revision

This patch increments the management interface revision due to the
various fixes, improvements and other changes that have gone in
lately.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 461d5bb245a8..3b3ed0522fcf 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -33,7 +33,7 @@
 #include <net/bluetooth/smp.h>
 
 #define MGMT_VERSION	1
-#define MGMT_REVISION	3
+#define MGMT_REVISION	4
 
 static const u16 mgmt_commands[] = {
 	MGMT_OP_READ_INDEX_LIST,
-- 
cgit 


From 9e07f2cb3d7a93f4b1b18fc6e4dd6911dcba2442 Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Wed, 2 Oct 2013 14:42:45 +0100
Subject: GFS2: Speed up starting point selection for block allocation

When setting the starting point for block allocation, there were calls
to both gfs2_rbm_to_block() and gfs2_rbm_from_block() in the common case
of there being an active reservation. The gfs2_rbm_from_block() function
can be quite slow, and since the two conversions were effectively a
no-op, it makes sense to avoid them entirely in this case.

There is no functional change here, but the code should be a bit more
efficient after this patch.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---
 fs/gfs2/rgrp.c | 41 +++++++++++++++++++++++++++++++----------
 1 file changed, 31 insertions(+), 10 deletions(-)

diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 4f0984a607b3..4d83abdd5635 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -2133,6 +2133,35 @@ out:
 	spin_unlock(&rgd->rd_rsspin);
 }
 
+/**
+ * gfs2_set_alloc_start - Set starting point for block allocation
+ * @rbm: The rbm which will be set to the required location
+ * @ip: The gfs2 inode
+ * @dinode: Flag to say if allocation includes a new inode
+ *
+ * This sets the starting point from the reservation if one is active
+ * otherwise it falls back to guessing a start point based on the
+ * inode's goal block or the last allocation point in the rgrp.
+ */
+
+static void gfs2_set_alloc_start(struct gfs2_rbm *rbm,
+				 const struct gfs2_inode *ip, bool dinode)
+{
+	u64 goal;
+
+	if (gfs2_rs_active(ip->i_res)) {
+		*rbm = ip->i_res->rs_rbm;
+		return;
+	}
+
+	if (!dinode && rgrp_contains_block(rbm->rgd, ip->i_goal))
+		goal = ip->i_goal;
+	else
+		goal = rbm->rgd->rd_last_alloc + rbm->rgd->rd_data0;
+
+	gfs2_rbm_from_block(rbm, goal);
+}
+
 /**
  * gfs2_alloc_blocks - Allocate one or more blocks of data and/or a dinode
  * @ip: the inode to allocate the block for
@@ -2151,22 +2180,14 @@ int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *nblocks,
 	struct buffer_head *dibh;
 	struct gfs2_rbm rbm = { .rgd = ip->i_rgd, };
 	unsigned int ndata;
-	u64 goal;
 	u64 block; /* block, within the file system scope */
 	int error;
 
-	if (gfs2_rs_active(ip->i_res))
-		goal = gfs2_rbm_to_block(&ip->i_res->rs_rbm);
-	else if (!dinode && rgrp_contains_block(rbm.rgd, ip->i_goal))
-		goal = ip->i_goal;
-	else
-		goal = rbm.rgd->rd_last_alloc + rbm.rgd->rd_data0;
-
-	gfs2_rbm_from_block(&rbm, goal);
+	gfs2_set_alloc_start(&rbm, ip, dinode);
 	error = gfs2_rbm_find(&rbm, GFS2_BLKST_FREE, 0, ip, false);
 
 	if (error == -ENOSPC) {
-		gfs2_rbm_from_block(&rbm, goal);
+		gfs2_set_alloc_start(&rbm, ip, dinode);
 		error = gfs2_rbm_find(&rbm, GFS2_BLKST_FREE, 0, NULL, false);
 	}
 
-- 
cgit 


From 26e43a15d44a02e380904ac6113fe0f2f1ddea8a Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Wed, 2 Oct 2013 14:47:02 +0100
Subject: GFS2: Move gfs2_icbit_munge into quota.c

This function is only called twice, and both callers are
quota related, so lets move this function into quota.c and
make it static.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---
 fs/gfs2/quota.c | 20 ++++++++++++++++++++
 fs/gfs2/util.c  | 20 --------------------
 fs/gfs2/util.h  |  2 --
 3 files changed, 20 insertions(+), 22 deletions(-)

diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 8fe7a0a87c80..fd1ec5243d2e 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -289,6 +289,26 @@ static void slot_hold(struct gfs2_quota_data *qd)
 	spin_unlock(&qd_lru_lock);
 }
 
+static void gfs2_icbit_munge(struct gfs2_sbd *sdp, unsigned char **bitmap,
+			     unsigned int bit, int new_value)
+{
+	unsigned int c, o, b = bit;
+	int old_value;
+
+	c = b / (8 * PAGE_SIZE);
+	b %= 8 * PAGE_SIZE;
+	o = b / 8;
+	b %= 8;
+
+	old_value = (bitmap[c][o] & (1 << b));
+	gfs2_assert_withdraw(sdp, !old_value != !new_value);
+
+	if (new_value)
+		bitmap[c][o] |= 1 << b;
+	else
+		bitmap[c][o] &= ~(1 << b);
+}
+
 static void slot_put(struct gfs2_quota_data *qd)
 {
 	struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;
diff --git a/fs/gfs2/util.c b/fs/gfs2/util.c
index 6402fb69d71b..f7109f689e61 100644
--- a/fs/gfs2/util.c
+++ b/fs/gfs2/util.c
@@ -268,23 +268,3 @@ int gfs2_io_error_bh_i(struct gfs2_sbd *sdp, struct buffer_head *bh,
 	return rv;
 }
 
-void gfs2_icbit_munge(struct gfs2_sbd *sdp, unsigned char **bitmap,
-		      unsigned int bit, int new_value)
-{
-	unsigned int c, o, b = bit;
-	int old_value;
-
-	c = b / (8 * PAGE_SIZE);
-	b %= 8 * PAGE_SIZE;
-	o = b / 8;
-	b %= 8;
-
-	old_value = (bitmap[c][o] & (1 << b));
-	gfs2_assert_withdraw(sdp, !old_value != !new_value);
-
-	if (new_value)
-		bitmap[c][o] |= 1 << b;
-	else
-		bitmap[c][o] &= ~(1 << b);
-}
-
diff --git a/fs/gfs2/util.h b/fs/gfs2/util.h
index 80535739ac7b..b7ffb09b99ea 100644
--- a/fs/gfs2/util.h
+++ b/fs/gfs2/util.h
@@ -164,8 +164,6 @@ static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt,
 #define gfs2_tune_get(sdp, field) \
 gfs2_tune_get_i(&(sdp)->sd_tune, &(sdp)->sd_tune.field)
 
-void gfs2_icbit_munge(struct gfs2_sbd *sdp, unsigned char **bitmap,
-		      unsigned int bit, int new_value);
 int gfs2_lm_withdraw(struct gfs2_sbd *sdp, char *fmt, ...);
 
 #endif /* __UTIL_DOT_H__ */
-- 
cgit 


From bf7a9b6f2fd31745e6ba532da37f68416312a688 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Wed, 2 Oct 2013 16:12:52 +0200
Subject: ARM: ux500: correct CD for micro SD on hrev60plus

This correct the card detect line for the HREF v60 and later
reference designs. This is connected directly to the Nomadik
GPIO block, line 95 at offset 31 on the third instance.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-hrefv60plus.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/ste-hrefv60plus.dts b/arch/arm/boot/dts/ste-hrefv60plus.dts
index 111546802667..b82ae5015121 100644
--- a/arch/arm/boot/dts/ste-hrefv60plus.dts
+++ b/arch/arm/boot/dts/ste-hrefv60plus.dts
@@ -40,7 +40,7 @@
 			mmc-cap-mmc-highspeed;
 			vmmc-supply = <&ab8500_ldo_aux3_reg>;
 
-			cd-gpios  = <&tc3589x_gpio 3 0x4>;
+			cd-gpios  = <&gpio2 31 0x4>; // 95
 
 			status = "okay";
 		};
-- 
cgit 


From d62407b0a68370c0eef9f4a508d846570ff6d38e Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Wed, 2 Oct 2013 16:03:31 +0200
Subject: ARM: ux500: move TC35892 at 0x42 to hrefprev60

The TC35892 was mounted as a GPIO expander on the HREF prior
to v60 and not in later versions, which instead use the Nomadik
GPIO directly, so move it over to the hrefprev60 DTS file.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-href.dtsi      | 22 ----------------------
 arch/arm/boot/dts/ste-hrefprev60.dts | 20 ++++++++++++++++++++
 2 files changed, 20 insertions(+), 22 deletions(-)

diff --git a/arch/arm/boot/dts/ste-href.dtsi b/arch/arm/boot/dts/ste-href.dtsi
index a561bc39e6ab..aa3f02060fdd 100644
--- a/arch/arm/boot/dts/ste-href.dtsi
+++ b/arch/arm/boot/dts/ste-href.dtsi
@@ -41,28 +41,6 @@
 			status = "okay";
 		};
 
-		i2c@80004000 {
-			tc3589x@42 {
-				compatible = "tc3589x";
-				reg = <0x42>;
-				interrupt-parent = <&gpio6>;
-				interrupts = <25 IRQ_TYPE_EDGE_RISING>;
-
-				interrupt-controller;
-				#interrupt-cells = <2>;
-
-				tc3589x_gpio: tc3589x_gpio {
-					compatible = "tc3589x-gpio";
-					interrupts = <0 IRQ_TYPE_EDGE_RISING>;
-
-					interrupt-controller;
-					#interrupt-cells = <2>;
-					gpio-controller;
-					#gpio-cells = <2>;
-				};
-			};
-		};
-
 		i2c@80128000 {
 			lp5521@33 {
 				compatible = "national,lp5521";
diff --git a/arch/arm/boot/dts/ste-hrefprev60.dts b/arch/arm/boot/dts/ste-hrefprev60.dts
index 767fa21e4881..5016dc93d98e 100644
--- a/arch/arm/boot/dts/ste-hrefprev60.dts
+++ b/arch/arm/boot/dts/ste-hrefprev60.dts
@@ -30,6 +30,26 @@
 				compatible = "tps61052";
 				reg = <0x33>;
 			};
+
+			tc3589x@42 {
+				compatible = "tc3589x";
+				reg = <0x42>;
+				interrupt-parent = <&gpio6>;
+				interrupts = <25 IRQ_TYPE_EDGE_RISING>;
+
+				interrupt-controller;
+				#interrupt-cells = <2>;
+
+				tc3589x_gpio: tc3589x_gpio {
+					compatible = "tc3589x-gpio";
+					interrupts = <0 IRQ_TYPE_EDGE_RISING>;
+
+					interrupt-controller;
+					#interrupt-cells = <2>;
+					gpio-controller;
+					#gpio-cells = <2>;
+				};
+			};
 		};
 
 		i2c@80110000 {
-- 
cgit 


From 9c19cfa93a43803c5f40054f96bca28d439e0847 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Thu, 26 Sep 2013 15:34:02 +0200
Subject: ARM: ux500: split HREF UIB files

Create two different UIB (User Interface Board) include files: one per
UIB simply. The include files now only handle the devices on that
very UIB.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-href-stuib.dtsi      | 80 ++++++++++++++++++++++++++++++
 arch/arm/boot/dts/ste-href-tvk1281618.dtsi | 20 ++++++++
 arch/arm/boot/dts/ste-hrefprev60.dts       |  3 +-
 arch/arm/boot/dts/ste-hrefv60plus.dts      |  3 +-
 arch/arm/boot/dts/ste-stuib.dtsi           | 80 ------------------------------
 5 files changed, 104 insertions(+), 82 deletions(-)
 create mode 100644 arch/arm/boot/dts/ste-href-stuib.dtsi
 create mode 100644 arch/arm/boot/dts/ste-href-tvk1281618.dtsi
 delete mode 100644 arch/arm/boot/dts/ste-stuib.dtsi

diff --git a/arch/arm/boot/dts/ste-href-stuib.dtsi b/arch/arm/boot/dts/ste-href-stuib.dtsi
new file mode 100644
index 000000000000..524e33240ad4
--- /dev/null
+++ b/arch/arm/boot/dts/ste-href-stuib.dtsi
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2012 ST-Ericsson AB
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	soc {
+		i2c@80004000 {
+			stmpe1601: stmpe1601@40 {
+				compatible = "st,stmpe1601";
+				reg = <0x40>;
+				interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
+				interrupt-parent = <&gpio6>;
+				interrupt-controller;
+
+				wakeup-source;
+				st,autosleep-timeout = <1024>;
+
+				stmpe_keypad {
+					compatible = "st,stmpe-keypad";
+
+					debounce-interval = <64>;
+					st,scan-count = <8>;
+					st,no-autorepeat;
+
+					linux,keymap = <0x205006b
+							0x4010074
+							0x3050072
+							0x1030004
+							0x502006a
+							0x500000a
+							0x5008b
+							0x706001c
+							0x405000b
+							0x6070003
+							0x3040067
+							0x303006c
+							0x60400e7
+							0x602009e
+							0x4020073
+							0x5050002
+							0x4030069
+							0x3020008>;
+				};
+			};
+		};
+
+		i2c@80110000 {
+			bu21013_tp@5c {
+				compatible = "rohm,bu21013_tp";
+				reg = <0x5c>;
+				touch-gpio = <&gpio2 20 0x4>;
+				avdd-supply = <&ab8500_ldo_aux1_reg>;
+
+				rohm,touch-max-x = <384>;
+				rohm,touch-max-y = <704>;
+				rohm,flip-y;
+			};
+
+			bu21013_tp@5d {
+				compatible = "rohm,bu21013_tp";
+				reg = <0x5d>;
+				touch-gpio = <&gpio2 20 0x4>;
+				avdd-supply = <&ab8500_ldo_aux1_reg>;
+
+				rohm,touch-max-x = <384>;
+				rohm,touch-max-y = <704>;
+				rohm,flip-y;
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/ste-href-tvk1281618.dtsi b/arch/arm/boot/dts/ste-href-tvk1281618.dtsi
new file mode 100644
index 000000000000..89e1485a3850
--- /dev/null
+++ b/arch/arm/boot/dts/ste-href-tvk1281618.dtsi
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2012 ST-Ericsson AB
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * Device Tree for the TVK1281618 UIB
+ */
+
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	soc {
+		/* Add Synaptics touch screen, TC35892 keypad etc here */
+	};
+};
diff --git a/arch/arm/boot/dts/ste-hrefprev60.dts b/arch/arm/boot/dts/ste-hrefprev60.dts
index 5016dc93d98e..85c6dd4ab37e 100644
--- a/arch/arm/boot/dts/ste-hrefprev60.dts
+++ b/arch/arm/boot/dts/ste-hrefprev60.dts
@@ -12,7 +12,8 @@
 /dts-v1/;
 #include "ste-dbx5x0.dtsi"
 #include "ste-href.dtsi"
-#include "ste-stuib.dtsi"
+#include "ste-href-stuib.dtsi"
+#include "ste-href-tvk1281618.dtsi"
 
 / {
 	model = "ST-Ericsson HREF (pre-v60) platform with Device Tree";
diff --git a/arch/arm/boot/dts/ste-hrefv60plus.dts b/arch/arm/boot/dts/ste-hrefv60plus.dts
index b82ae5015121..0f222e16f0b3 100644
--- a/arch/arm/boot/dts/ste-hrefv60plus.dts
+++ b/arch/arm/boot/dts/ste-hrefv60plus.dts
@@ -12,7 +12,8 @@
 /dts-v1/;
 #include "ste-dbx5x0.dtsi"
 #include "ste-href.dtsi"
-#include "ste-stuib.dtsi"
+#include "ste-href-stuib.dtsi"
+#include "ste-href-tvk1281618.dtsi"
 
 / {
 	model = "ST-Ericsson HREF (v60+) platform with Device Tree";
diff --git a/arch/arm/boot/dts/ste-stuib.dtsi b/arch/arm/boot/dts/ste-stuib.dtsi
deleted file mode 100644
index 524e33240ad4..000000000000
--- a/arch/arm/boot/dts/ste-stuib.dtsi
+++ /dev/null
@@ -1,80 +0,0 @@
-/*
- * Copyright 2012 ST-Ericsson AB
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
- */
-
-#include <dt-bindings/interrupt-controller/irq.h>
-
-/ {
-	soc {
-		i2c@80004000 {
-			stmpe1601: stmpe1601@40 {
-				compatible = "st,stmpe1601";
-				reg = <0x40>;
-				interrupts = <26 IRQ_TYPE_EDGE_FALLING>;
-				interrupt-parent = <&gpio6>;
-				interrupt-controller;
-
-				wakeup-source;
-				st,autosleep-timeout = <1024>;
-
-				stmpe_keypad {
-					compatible = "st,stmpe-keypad";
-
-					debounce-interval = <64>;
-					st,scan-count = <8>;
-					st,no-autorepeat;
-
-					linux,keymap = <0x205006b
-							0x4010074
-							0x3050072
-							0x1030004
-							0x502006a
-							0x500000a
-							0x5008b
-							0x706001c
-							0x405000b
-							0x6070003
-							0x3040067
-							0x303006c
-							0x60400e7
-							0x602009e
-							0x4020073
-							0x5050002
-							0x4030069
-							0x3020008>;
-				};
-			};
-		};
-
-		i2c@80110000 {
-			bu21013_tp@5c {
-				compatible = "rohm,bu21013_tp";
-				reg = <0x5c>;
-				touch-gpio = <&gpio2 20 0x4>;
-				avdd-supply = <&ab8500_ldo_aux1_reg>;
-
-				rohm,touch-max-x = <384>;
-				rohm,touch-max-y = <704>;
-				rohm,flip-y;
-			};
-
-			bu21013_tp@5d {
-				compatible = "rohm,bu21013_tp";
-				reg = <0x5d>;
-				touch-gpio = <&gpio2 20 0x4>;
-				avdd-supply = <&ab8500_ldo_aux1_reg>;
-
-				rohm,touch-max-x = <384>;
-				rohm,touch-max-y = <704>;
-				rohm,flip-y;
-			};
-		};
-	};
-};
-- 
cgit 


From 01dc909fa1be6259cdbbc9fd6933df4fbe26ea5a Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Wed, 2 Oct 2013 15:42:59 +0200
Subject: ARM: ux500: split the HREF DTS files from two to four

As the device tree conversion did away with the ability to
auto-detect the UIB (User Interface Board) version from attempting
to read an I2C address, we now have to pass the knowledge of
what UIB is mounted through the device tree. This gives rise
to four possible board permutations:

- HREF prior to v60, ST UIB (hrefprev60-stuib)
- HREF prior to v60, TVK1281618 UIB (hrefprev60-tvk)
- HREF v60 and later, ST UIB (href60plus-stuib)
- HREF v60 and later, TVK1281618 UIB (hrefv60plus-tvk)

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/Makefile                  |  6 ++-
 arch/arm/boot/dts/ste-hrefprev60-stuib.dts  | 28 ++++++++++
 arch/arm/boot/dts/ste-hrefprev60-tvk.dts    | 19 +++++++
 arch/arm/boot/dts/ste-hrefprev60.dts        | 69 -------------------------
 arch/arm/boot/dts/ste-hrefprev60.dtsi       | 65 ++++++++++++++++++++++++
 arch/arm/boot/dts/ste-hrefv60plus-stuib.dts | 30 +++++++++++
 arch/arm/boot/dts/ste-hrefv60plus-tvk.dts   | 21 ++++++++
 arch/arm/boot/dts/ste-hrefv60plus.dts       | 79 -----------------------------
 arch/arm/boot/dts/ste-hrefv60plus.dtsi      | 76 +++++++++++++++++++++++++++
 9 files changed, 243 insertions(+), 150 deletions(-)
 create mode 100644 arch/arm/boot/dts/ste-hrefprev60-stuib.dts
 create mode 100644 arch/arm/boot/dts/ste-hrefprev60-tvk.dts
 delete mode 100644 arch/arm/boot/dts/ste-hrefprev60.dts
 create mode 100644 arch/arm/boot/dts/ste-hrefprev60.dtsi
 create mode 100644 arch/arm/boot/dts/ste-hrefv60plus-stuib.dts
 create mode 100644 arch/arm/boot/dts/ste-hrefv60plus-tvk.dts
 delete mode 100644 arch/arm/boot/dts/ste-hrefv60plus.dts
 create mode 100644 arch/arm/boot/dts/ste-hrefv60plus.dtsi

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index cc0f1fb61753..f1163a4c55d3 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -189,8 +189,10 @@ dtb-$(CONFIG_ARCH_OMAP2PLUS) += omap2420-h4.dtb \
 dtb-$(CONFIG_ARCH_ORION5X) += orion5x-lacie-ethernet-disk-mini-v2.dtb
 dtb-$(CONFIG_ARCH_PRIMA2) += prima2-evb.dtb
 dtb-$(CONFIG_ARCH_U8500) += ste-snowball.dtb \
-	ste-hrefprev60.dtb \
-	ste-hrefv60plus.dtb \
+	ste-hrefprev60-stuib.dtb \
+	ste-hrefprev60-tvk.dtb \
+	ste-hrefv60plus-stuib.dtb \
+	ste-hrefv60plus-tvk.dtb \
 	ste-ccu8540.dtb \
 	ste-ccu9540.dtb
 dtb-$(CONFIG_ARCH_S3C24XX) += s3c2416-smdk2416.dtb
diff --git a/arch/arm/boot/dts/ste-hrefprev60-stuib.dts b/arch/arm/boot/dts/ste-hrefprev60-stuib.dts
new file mode 100644
index 000000000000..3e1b974b43a1
--- /dev/null
+++ b/arch/arm/boot/dts/ste-hrefprev60-stuib.dts
@@ -0,0 +1,28 @@
+/*
+ * Copyright 2012 ST-Ericsson AB
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/dts-v1/;
+#include "ste-hrefprev60.dtsi"
+#include "ste-href-stuib.dtsi"
+
+/ {
+	model = "ST-Ericsson HREF (pre-v60) and ST UIB";
+	compatible = "st-ericsson,mop500", "st-ericsson,u8500";
+
+	soc {
+		/* Reset line for the BU21013 touchscreen */
+		i2c@80110000 {
+			bu21013_tp@5c {
+				reset-gpio = <&tc3589x_gpio 13 0x4>;
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/ste-hrefprev60-tvk.dts b/arch/arm/boot/dts/ste-hrefprev60-tvk.dts
new file mode 100644
index 000000000000..59523f866812
--- /dev/null
+++ b/arch/arm/boot/dts/ste-hrefprev60-tvk.dts
@@ -0,0 +1,19 @@
+/*
+ * Copyright 2012 ST-Ericsson AB
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/dts-v1/;
+#include "ste-hrefprev60.dtsi"
+#include "ste-href-tvk1281618.dtsi"
+
+/ {
+	model = "ST-Ericsson HREF (pre-v60) and TVK1281618 UIB";
+	compatible = "st-ericsson,mop500", "st-ericsson,u8500";
+};
diff --git a/arch/arm/boot/dts/ste-hrefprev60.dts b/arch/arm/boot/dts/ste-hrefprev60.dts
deleted file mode 100644
index 85c6dd4ab37e..000000000000
--- a/arch/arm/boot/dts/ste-hrefprev60.dts
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * Copyright 2012 ST-Ericsson AB
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
- */
-
-/dts-v1/;
-#include "ste-dbx5x0.dtsi"
-#include "ste-href.dtsi"
-#include "ste-href-stuib.dtsi"
-#include "ste-href-tvk1281618.dtsi"
-
-/ {
-	model = "ST-Ericsson HREF (pre-v60) platform with Device Tree";
-	compatible = "st-ericsson,mop500", "st-ericsson,u8500";
-
-	gpio_keys {
-		button@1 {
-			gpios = <&tc3589x_gpio 7 0x4>;
-		};
-	};
-
-	soc {
-		i2c@80004000 {
-			tps61052@33 {
-				compatible = "tps61052";
-				reg = <0x33>;
-			};
-
-			tc3589x@42 {
-				compatible = "tc3589x";
-				reg = <0x42>;
-				interrupt-parent = <&gpio6>;
-				interrupts = <25 IRQ_TYPE_EDGE_RISING>;
-
-				interrupt-controller;
-				#interrupt-cells = <2>;
-
-				tc3589x_gpio: tc3589x_gpio {
-					compatible = "tc3589x-gpio";
-					interrupts = <0 IRQ_TYPE_EDGE_RISING>;
-
-					interrupt-controller;
-					#interrupt-cells = <2>;
-					gpio-controller;
-					#gpio-cells = <2>;
-				};
-			};
-		};
-
-		i2c@80110000 {
-			bu21013_tp@5c {
-				reset-gpio = <&tc3589x_gpio 13 0x4>;
-			};
-		};
-
-		vmmci: regulator-gpio {
-			gpios = <&tc3589x_gpio 18 0x4>;
-			enable-gpio = <&tc3589x_gpio 17 0x4>;
-
-			status = "okay";
-		};
-	};
-};
diff --git a/arch/arm/boot/dts/ste-hrefprev60.dtsi b/arch/arm/boot/dts/ste-hrefprev60.dtsi
new file mode 100644
index 000000000000..de6b0a0c5a54
--- /dev/null
+++ b/arch/arm/boot/dts/ste-hrefprev60.dtsi
@@ -0,0 +1,65 @@
+/*
+ * Copyright 2012 ST-Ericsson AB
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * Device Tree for the HREF+ prior to the v60 variant.
+ */
+
+#include "ste-dbx5x0.dtsi"
+#include "ste-href.dtsi"
+
+/ {
+	gpio_keys {
+		button@1 {
+			gpios = <&tc3589x_gpio 7 0x4>;
+		};
+	};
+
+	soc {
+		i2c@80004000 {
+			tps61052@33 {
+				compatible = "tps61052";
+				reg = <0x33>;
+			};
+
+			tc3589x@42 {
+				compatible = "tc3589x";
+				reg = <0x42>;
+				interrupt-parent = <&gpio6>;
+				interrupts = <25 IRQ_TYPE_EDGE_RISING>;
+
+				interrupt-controller;
+				#interrupt-cells = <2>;
+
+				tc3589x_gpio: tc3589x_gpio {
+					compatible = "tc3589x-gpio";
+					interrupts = <0 IRQ_TYPE_EDGE_RISING>;
+
+					interrupt-controller;
+					#interrupt-cells = <2>;
+					gpio-controller;
+					#gpio-cells = <2>;
+				};
+			};
+		};
+
+		i2c@80110000 {
+			bu21013_tp@5c {
+				reset-gpio = <&tc3589x_gpio 13 0x4>;
+			};
+		};
+
+		vmmci: regulator-gpio {
+			gpios = <&tc3589x_gpio 18 0x4>;
+			enable-gpio = <&tc3589x_gpio 17 0x4>;
+
+			status = "okay";
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/ste-hrefv60plus-stuib.dts b/arch/arm/boot/dts/ste-hrefv60plus-stuib.dts
new file mode 100644
index 000000000000..4da49e7988e9
--- /dev/null
+++ b/arch/arm/boot/dts/ste-hrefv60plus-stuib.dts
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2012 ST-Ericsson AB
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * Device Tree for the HREF version 60 or later with the ST UIB
+ */
+
+/dts-v1/;
+#include "ste-hrefv60plus.dtsi"
+#include "ste-href-stuib.dtsi"
+
+/ {
+	model = "ST-Ericsson HREF (v60+) and ST UIB";
+	compatible = "st-ericsson,hrefv60+", "st-ericsson,u8500";
+
+	soc {
+		/* Reset line for the BU21013 touchscreen */
+		i2c@80110000 {
+			bu21013_tp@0x5c {
+				reset-gpio = <&gpio4 15 0x4>;
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/ste-hrefv60plus-tvk.dts b/arch/arm/boot/dts/ste-hrefv60plus-tvk.dts
new file mode 100644
index 000000000000..d53cccdce776
--- /dev/null
+++ b/arch/arm/boot/dts/ste-hrefv60plus-tvk.dts
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2012 ST-Ericsson AB
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ *
+ * Device Tree for the HREF version 60 or later with the TVK1281618 UIB
+ */
+
+/dts-v1/;
+#include "ste-hrefv60plus.dtsi"
+#include "ste-href-tvk1281618.dtsi"
+
+/ {
+	model = "ST-Ericsson HREF (v60+) and TVK1281618 UIB";
+	compatible = "st-ericsson,hrefv60+", "st-ericsson,u8500";
+};
diff --git a/arch/arm/boot/dts/ste-hrefv60plus.dts b/arch/arm/boot/dts/ste-hrefv60plus.dts
deleted file mode 100644
index 0f222e16f0b3..000000000000
--- a/arch/arm/boot/dts/ste-hrefv60plus.dts
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- * Copyright 2012 ST-Ericsson AB
- *
- * The code contained herein is licensed under the GNU General Public
- * License. You may obtain a copy of the GNU General Public License
- * Version 2 or later at the following locations:
- *
- * http://www.opensource.org/licenses/gpl-license.html
- * http://www.gnu.org/copyleft/gpl.html
- */
-
-/dts-v1/;
-#include "ste-dbx5x0.dtsi"
-#include "ste-href.dtsi"
-#include "ste-href-stuib.dtsi"
-#include "ste-href-tvk1281618.dtsi"
-
-/ {
-	model = "ST-Ericsson HREF (v60+) platform with Device Tree";
-	compatible = "st-ericsson,hrefv60+", "st-ericsson,u8500";
-
-	gpio_keys {
-		button@1 {
-			gpios = <&gpio5 25 0x4>;
-		};
-	};
-
-	soc {
-		i2c@80110000 {
-			bu21013_tp@0x5c {
-				reset-gpio = <&gpio4 15 0x4>;
-			};
-		};
-
-		// External Micro SD slot
-		sdi0_per1@80126000 {
-			arm,primecell-periphid = <0x10480180>;
-			max-frequency = <100000000>;
-			bus-width = <4>;
-			mmc-cap-sd-highspeed;
-			mmc-cap-mmc-highspeed;
-			vmmc-supply = <&ab8500_ldo_aux3_reg>;
-
-			cd-gpios  = <&gpio2 31 0x4>; // 95
-
-			status = "okay";
-		};
-
-		// WLAN SDIO channel
-		sdi1_per2@80118000 {
-			arm,primecell-periphid = <0x10480180>;
-			max-frequency = <100000000>;
-			bus-width = <4>;
-
-			status = "okay";
-		};
-
-		// PoP:ed eMMC
-		sdi2_per3@80005000 {
-			arm,primecell-periphid = <0x10480180>;
-			max-frequency = <100000000>;
-			bus-width = <8>;
-			mmc-cap-mmc-highspeed;
-
-			status = "okay";
-		};
-
-		// On-board eMMC
-		sdi4_per2@80114000 {
-			arm,primecell-periphid = <0x10480180>;
-		        max-frequency = <100000000>;
-			bus-width = <8>;
-			mmc-cap-mmc-highspeed;
-			vmmc-supply = <&ab8500_ldo_aux2_reg>;
-
-			status = "okay";
-		};
-	};
-};
diff --git a/arch/arm/boot/dts/ste-hrefv60plus.dtsi b/arch/arm/boot/dts/ste-hrefv60plus.dtsi
new file mode 100644
index 000000000000..d0f116555c0e
--- /dev/null
+++ b/arch/arm/boot/dts/ste-hrefv60plus.dtsi
@@ -0,0 +1,76 @@
+/*
+ * Copyright 2012 ST-Ericsson AB
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include "ste-dbx5x0.dtsi"
+#include "ste-href.dtsi"
+
+/ {
+	model = "ST-Ericsson HREF (v60+) platform with Device Tree";
+	compatible = "st-ericsson,hrefv60+", "st-ericsson,u8500";
+
+	gpio_keys {
+		button@1 {
+			gpios = <&gpio5 25 0x4>;
+		};
+	};
+
+	soc {
+		i2c@80110000 {
+			bu21013_tp@0x5c {
+				reset-gpio = <&gpio4 15 0x4>;
+			};
+		};
+
+		// External Micro SD slot
+		sdi0_per1@80126000 {
+			arm,primecell-periphid = <0x10480180>;
+			max-frequency = <100000000>;
+			bus-width = <4>;
+			mmc-cap-sd-highspeed;
+			mmc-cap-mmc-highspeed;
+			vmmc-supply = <&ab8500_ldo_aux3_reg>;
+
+			cd-gpios  = <&gpio2 31 0x4>; // 95
+
+			status = "okay";
+		};
+
+		// WLAN SDIO channel
+		sdi1_per2@80118000 {
+			arm,primecell-periphid = <0x10480180>;
+			max-frequency = <100000000>;
+			bus-width = <4>;
+
+			status = "okay";
+		};
+
+		// PoP:ed eMMC
+		sdi2_per3@80005000 {
+			arm,primecell-periphid = <0x10480180>;
+			max-frequency = <100000000>;
+			bus-width = <8>;
+			mmc-cap-mmc-highspeed;
+
+			status = "okay";
+		};
+
+		// On-board eMMC
+		sdi4_per2@80114000 {
+			arm,primecell-periphid = <0x10480180>;
+		        max-frequency = <100000000>;
+			bus-width = <8>;
+			mmc-cap-mmc-highspeed;
+			vmmc-supply = <&ab8500_ldo_aux2_reg>;
+
+			status = "okay";
+		};
+	};
+};
-- 
cgit 


From d819c6cf1c064e74c50e38c3ff36a781bb49959c Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 30 Sep 2013 11:02:46 +0200
Subject: iwlwifi: pcie: fix merge damage

The merge b35c8097 seems to have lost commit eabc4ac5d,
put the code back.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/iwlwifi/pcie/trans.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index bad95d28d50d..c3f904d422b0 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -1401,6 +1401,10 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 	spin_lock_init(&trans_pcie->reg_lock);
 	init_waitqueue_head(&trans_pcie->ucode_write_waitq);
 
+	err = pci_enable_device(pdev);
+	if (err)
+		goto out_no_pci;
+
 	if (!cfg->base_params->pcie_l1_allowed) {
 		/*
 		 * W/A - seems to solve weird behavior. We need to remove this
@@ -1412,10 +1416,6 @@ struct iwl_trans *iwl_trans_pcie_alloc(struct pci_dev *pdev,
 				       PCIE_LINK_STATE_CLKPM);
 	}
 
-	err = pci_enable_device(pdev);
-	if (err)
-		goto out_no_pci;
-
 	pci_set_master(pdev);
 
 	err = pci_set_dma_mask(pdev, DMA_BIT_MASK(36));
-- 
cgit 


From ca0a10672dad94aa1f89645f89eb6047b7bf2a19 Mon Sep 17 00:00:00 2001
From: Mathias Krause <minipli@googlemail.com>
Date: Mon, 30 Sep 2013 22:05:07 +0200
Subject: netfilter: ebt_ulog: fix info leaks

The ulog messages leak heap bytes by the means of padding bytes and
incompletely filled string arrays. Fix those by memset(0)'ing the
whole struct before filling it.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/bridge/netfilter/ebt_ulog.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/net/bridge/netfilter/ebt_ulog.c b/net/bridge/netfilter/ebt_ulog.c
index 518093802d1d..7c470c371e14 100644
--- a/net/bridge/netfilter/ebt_ulog.c
+++ b/net/bridge/netfilter/ebt_ulog.c
@@ -181,6 +181,7 @@ static void ebt_ulog_packet(struct net *net, unsigned int hooknr,
 	ub->qlen++;
 
 	pm = nlmsg_data(nlh);
+	memset(pm, 0, sizeof(*pm));
 
 	/* Fill in the ulog data */
 	pm->version = EBT_ULOG_VERSION;
@@ -193,8 +194,6 @@ static void ebt_ulog_packet(struct net *net, unsigned int hooknr,
 	pm->hook = hooknr;
 	if (uloginfo->prefix != NULL)
 		strcpy(pm->prefix, uloginfo->prefix);
-	else
-		*(pm->prefix) = '\0';
 
 	if (in) {
 		strcpy(pm->physindev, in->name);
@@ -204,16 +203,14 @@ static void ebt_ulog_packet(struct net *net, unsigned int hooknr,
 			strcpy(pm->indev, br_port_get_rcu(in)->br->dev->name);
 		else
 			strcpy(pm->indev, in->name);
-	} else
-		pm->indev[0] = pm->physindev[0] = '\0';
+	}
 
 	if (out) {
 		/* If out exists, then out is a bridge port */
 		strcpy(pm->physoutdev, out->name);
 		/* rcu_read_lock()ed by nf_hook_slow */
 		strcpy(pm->outdev, br_port_get_rcu(out)->br->dev->name);
-	} else
-		pm->outdev[0] = pm->physoutdev[0] = '\0';
+	}
 
 	if (skb_copy_bits(skb, -ETH_HLEN, pm->data, copy_len) < 0)
 		BUG();
-- 
cgit 


From 278f2b3e2af5f32ea1afe34fa12a2518153e6e49 Mon Sep 17 00:00:00 2001
From: Mathias Krause <minipli@googlemail.com>
Date: Mon, 30 Sep 2013 22:05:08 +0200
Subject: netfilter: ipt_ULOG: fix info leaks

The ulog messages leak heap bytes by the means of padding bytes and
incompletely filled string arrays. Fix those by memset(0)'ing the
whole struct before filling it.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/ipv4/netfilter/ipt_ULOG.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c
index cbc22158af49..9cb993cd224b 100644
--- a/net/ipv4/netfilter/ipt_ULOG.c
+++ b/net/ipv4/netfilter/ipt_ULOG.c
@@ -220,6 +220,7 @@ static void ipt_ulog_packet(struct net *net,
 	ub->qlen++;
 
 	pm = nlmsg_data(nlh);
+	memset(pm, 0, sizeof(*pm));
 
 	/* We might not have a timestamp, get one */
 	if (skb->tstamp.tv64 == 0)
@@ -238,8 +239,6 @@ static void ipt_ulog_packet(struct net *net,
 	}
 	else if (loginfo->prefix[0] != '\0')
 		strncpy(pm->prefix, loginfo->prefix, sizeof(pm->prefix));
-	else
-		*(pm->prefix) = '\0';
 
 	if (in && in->hard_header_len > 0 &&
 	    skb->mac_header != skb->network_header &&
@@ -251,13 +250,9 @@ static void ipt_ulog_packet(struct net *net,
 
 	if (in)
 		strncpy(pm->indev_name, in->name, sizeof(pm->indev_name));
-	else
-		pm->indev_name[0] = '\0';
 
 	if (out)
 		strncpy(pm->outdev_name, out->name, sizeof(pm->outdev_name));
-	else
-		pm->outdev_name[0] = '\0';
 
 	/* copy_len <= skb->len, so can't fail. */
 	if (skb_copy_bits(skb, 0, pm->payload, copy_len) < 0)
-- 
cgit 


From 507cadf262fe67cd71e02247b240706be12f1042 Mon Sep 17 00:00:00 2001
From: David Spinadel <david.spinadel@intel.com>
Date: Wed, 31 Jul 2013 18:07:21 +0300
Subject: iwlwifi: mvm: implement NoA testing using testmode cmd

For testing, implement setting continuous NoA duration
using a new MVM-specific testmode command.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/mac80211.c | 65 +++++++++++++++++++++
 drivers/net/wireless/iwlwifi/mvm/mvm.h      |  5 ++
 drivers/net/wireless/iwlwifi/mvm/quota.c    | 34 +++++++++++
 drivers/net/wireless/iwlwifi/mvm/testmode.h | 91 +++++++++++++++++++++++++++++
 4 files changed, 195 insertions(+)
 create mode 100644 drivers/net/wireless/iwlwifi/mvm/testmode.h

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 9833cdf6177c..43d0011a4308 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -77,6 +77,7 @@
 #include "iwl-eeprom-parse.h"
 #include "fw-api-scan.h"
 #include "iwl-phy-db.h"
+#include "testmode.h"
 
 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
 	{
@@ -699,6 +700,12 @@ static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
 	 * interface is be handled as part of the stop_ap flow.
 	 */
 	if (vif->type == NL80211_IFTYPE_AP) {
+#ifdef CONFIG_NL80211_TESTMODE
+		if (vif == mvm->noa_vif) {
+			mvm->noa_vif = NULL;
+			mvm->noa_duration = 0;
+		}
+#endif
 		iwl_mvm_dealloc_int_sta(mvm, &mvmvif->bcast_sta);
 		goto out_release;
 	}
@@ -1559,6 +1566,62 @@ static void iwl_mvm_mac_rssi_callback(struct ieee80211_hw *hw,
 	iwl_mvm_bt_rssi_event(mvm, vif, rssi_event);
 }
 
+#ifdef CONFIG_NL80211_TESTMODE
+static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
+	[IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
+	[IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
+};
+
+static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
+				      struct ieee80211_vif *vif,
+				      void *data, int len)
+{
+	struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
+	int err;
+	u32 noa_duration;
+
+	err = nla_parse(tb, IWL_MVM_TM_ATTR_MAX, data, len, iwl_mvm_tm_policy);
+	if (err)
+		return err;
+
+	if (!tb[IWL_MVM_TM_ATTR_CMD])
+		return -EINVAL;
+
+	switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
+	case IWL_MVM_TM_CMD_SET_NOA:
+		if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
+		    !vif->bss_conf.enable_beacon ||
+		    !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
+			return -EINVAL;
+
+		noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
+		if (noa_duration >= vif->bss_conf.beacon_int)
+			return -EINVAL;
+
+		mvm->noa_duration = noa_duration;
+		mvm->noa_vif = vif;
+
+		return iwl_mvm_update_quotas(mvm, NULL);
+	}
+
+	return -EOPNOTSUPP;
+}
+
+static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
+				    struct ieee80211_vif *vif,
+				    void *data, int len)
+{
+	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
+	int err;
+
+	mutex_lock(&mvm->mutex);
+	err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
+	mutex_unlock(&mvm->mutex);
+
+	return err;
+}
+#endif
+
 struct ieee80211_ops iwl_mvm_hw_ops = {
 	.tx = iwl_mvm_mac_tx,
 	.ampdu_action = iwl_mvm_mac_ampdu_action,
@@ -1595,6 +1658,8 @@ struct ieee80211_ops iwl_mvm_hw_ops = {
 
 	.set_tim = iwl_mvm_set_tim,
 
+	CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
+
 #ifdef CONFIG_PM_SLEEP
 	/* look at d3.c */
 	.suspend = iwl_mvm_suspend,
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index b0389279cc1e..2becb091a055 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -529,6 +529,11 @@ struct iwl_mvm {
 	s32 temperature;	/* Celsius */
 
 	const struct iwl_mvm_power_ops *pm_ops;
+
+#ifdef CONFIG_NL80211_TESTMODE
+	u32 noa_duration;
+	struct ieee80211_vif *noa_vif;
+#endif
 };
 
 /* Extract MVM priv from op_mode and _hw */
diff --git a/drivers/net/wireless/iwlwifi/mvm/quota.c b/drivers/net/wireless/iwlwifi/mvm/quota.c
index 5c6ae16ec52b..6c724a076427 100644
--- a/drivers/net/wireless/iwlwifi/mvm/quota.c
+++ b/drivers/net/wireless/iwlwifi/mvm/quota.c
@@ -129,6 +129,38 @@ static void iwl_mvm_quota_iterator(void *_data, u8 *mac,
 	}
 }
 
+static void iwl_mvm_adjust_quota_for_noa(struct iwl_mvm *mvm,
+					 struct iwl_time_quota_cmd *cmd)
+{
+#ifdef CONFIG_NL80211_TESTMODE
+	struct iwl_mvm_vif *mvmvif;
+	int i, phy_id = -1, beacon_int = 0;
+
+	if (!mvm->noa_duration || !mvm->noa_vif)
+		return;
+
+	mvmvif = iwl_mvm_vif_from_mac80211(mvm->noa_vif);
+	if (!mvmvif->ap_active)
+		return;
+
+	phy_id = mvmvif->phy_ctxt->id;
+	beacon_int = mvm->noa_vif->bss_conf.beacon_int;
+
+	for (i = 0; i < MAX_BINDINGS; i++) {
+		u32 id_n_c = le32_to_cpu(cmd->quotas[i].id_and_color);
+		u32 id = (id_n_c & FW_CTXT_ID_MSK) >> FW_CTXT_ID_POS;
+		u32 quota = le32_to_cpu(cmd->quotas[i].quota);
+
+		if (id != phy_id)
+			continue;
+
+		quota *= (beacon_int - mvm->noa_duration) / beacon_int;
+
+		cmd->quotas[i].quota = cpu_to_le32(quota);
+	}
+#endif
+}
+
 int iwl_mvm_update_quotas(struct iwl_mvm *mvm, struct ieee80211_vif *newvif)
 {
 	struct iwl_time_quota_cmd cmd = {};
@@ -196,6 +228,8 @@ int iwl_mvm_update_quotas(struct iwl_mvm *mvm, struct ieee80211_vif *newvif)
 	/* Give the remainder of the session to the first binding */
 	le32_add_cpu(&cmd.quotas[0].quota, quota_rem);
 
+	iwl_mvm_adjust_quota_for_noa(mvm, &cmd);
+
 	ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, CMD_SYNC,
 				   sizeof(cmd), &cmd);
 	if (ret)
diff --git a/drivers/net/wireless/iwlwifi/mvm/testmode.h b/drivers/net/wireless/iwlwifi/mvm/testmode.h
new file mode 100644
index 000000000000..e3df4992a371
--- /dev/null
+++ b/drivers/net/wireless/iwlwifi/mvm/testmode.h
@@ -0,0 +1,91 @@
+/******************************************************************************
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2013 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
+ * USA
+ *
+ * The full GNU General Public License is included in this distribution
+ * in the file called COPYING.
+ *
+ * Contact Information:
+ *  Intel Linux Wireless <ilw@linux.intel.com>
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2013 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *  * Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *  * Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *  * Neither the name Intel Corporation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *****************************************************************************/
+
+#ifndef __IWL_MVM_TESTMODE_H__
+#define __IWL_MVM_TESTMODE_H__
+
+/**
+ * enum iwl_mvm_testmode_attrs - testmode attributes inside NL80211_ATTR_TESTDATA
+ * @IWL_MVM_TM_ATTR_UNSPEC: (invalid attribute)
+ * @IWL_MVM_TM_ATTR_CMD: sub command, see &enum iwl_mvm_testmode_commands (u32)
+ * @IWL_MVM_TM_ATTR_NOA_DURATION: requested NoA duration (u32)
+ */
+enum iwl_mvm_testmode_attrs {
+	IWL_MVM_TM_ATTR_UNSPEC,
+	IWL_MVM_TM_ATTR_CMD,
+	IWL_MVM_TM_ATTR_NOA_DURATION,
+
+	/* keep last */
+	NUM_IWL_MVM_TM_ATTRS,
+	IWL_MVM_TM_ATTR_MAX = NUM_IWL_MVM_TM_ATTRS - 1,
+};
+
+/**
+ * enum iwl_mvm_testmode_commands - MVM testmode commands
+ * @IWL_MVM_TM_CMD_SET_NOA: set NoA on GO vif for testing
+ */
+enum iwl_mvm_testmode_commands {
+	IWL_MVM_TM_CMD_SET_NOA,
+};
+
+#endif /* __IWL_MVM_TESTMODE_H__ */
-- 
cgit 


From f6c6ad42b5e8b165ec1c62cfcd589c17a1682ca1 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 1 Aug 2013 14:17:15 +0200
Subject: iwlwifi: mvm: implement beacon filtering testmode command

Add a testmode command to (manually) disable (and re-enable)
beacon filtering for testing purposes.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/mac80211.c | 11 +++++++++++
 drivers/net/wireless/iwlwifi/mvm/testmode.h |  4 ++++
 2 files changed, 15 insertions(+)

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 43d0011a4308..3261730181fa 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -1570,6 +1570,7 @@ static void iwl_mvm_mac_rssi_callback(struct ieee80211_hw *hw,
 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
 	[IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
 	[IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
+	[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
 };
 
 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
@@ -1602,6 +1603,16 @@ static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
 		mvm->noa_vif = vif;
 
 		return iwl_mvm_update_quotas(mvm, NULL);
+	case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
+		/* must be associated client vif - ignore authorized */
+		if (!vif || vif->type != NL80211_IFTYPE_STATION ||
+		    !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
+		    !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
+			return -EINVAL;
+
+		if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
+			return iwl_mvm_enable_beacon_filter(mvm, vif);
+		return iwl_mvm_disable_beacon_filter(mvm, vif);
 	}
 
 	return -EOPNOTSUPP;
diff --git a/drivers/net/wireless/iwlwifi/mvm/testmode.h b/drivers/net/wireless/iwlwifi/mvm/testmode.h
index e3df4992a371..eb74391d91ca 100644
--- a/drivers/net/wireless/iwlwifi/mvm/testmode.h
+++ b/drivers/net/wireless/iwlwifi/mvm/testmode.h
@@ -69,11 +69,13 @@
  * @IWL_MVM_TM_ATTR_UNSPEC: (invalid attribute)
  * @IWL_MVM_TM_ATTR_CMD: sub command, see &enum iwl_mvm_testmode_commands (u32)
  * @IWL_MVM_TM_ATTR_NOA_DURATION: requested NoA duration (u32)
+ * @IWL_MVM_TM_ATTR_BEACON_FILTER_STATE: beacon filter state (0 or 1, u32)
  */
 enum iwl_mvm_testmode_attrs {
 	IWL_MVM_TM_ATTR_UNSPEC,
 	IWL_MVM_TM_ATTR_CMD,
 	IWL_MVM_TM_ATTR_NOA_DURATION,
+	IWL_MVM_TM_ATTR_BEACON_FILTER_STATE,
 
 	/* keep last */
 	NUM_IWL_MVM_TM_ATTRS,
@@ -83,9 +85,11 @@ enum iwl_mvm_testmode_attrs {
 /**
  * enum iwl_mvm_testmode_commands - MVM testmode commands
  * @IWL_MVM_TM_CMD_SET_NOA: set NoA on GO vif for testing
+ * @IWL_MVM_TM_CMD_SET_BEACON_FILTER: turn beacon filtering off/on
  */
 enum iwl_mvm_testmode_commands {
 	IWL_MVM_TM_CMD_SET_NOA,
+	IWL_MVM_TM_CMD_SET_BEACON_FILTER,
 };
 
 #endif /* __IWL_MVM_TESTMODE_H__ */
-- 
cgit 


From 4ac6cb59faefc3143d8d4589549a6c2a7ccaefe9 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 8 Aug 2013 09:30:13 +0200
Subject: iwlwifi: mvm: query firmware for non-QoS seqno

Instead of keeping track of the non-QoS seqno for each station,
query the firmware when suspending, that's more efficient. As
this can fail, move the station ID mangling later in the code.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/d3.c     | 59 +++++++++++++++++++++----------
 drivers/net/wireless/iwlwifi/mvm/fw-api.h |  1 +
 drivers/net/wireless/iwlwifi/mvm/ops.c    |  1 +
 drivers/net/wireless/iwlwifi/mvm/sta.h    |  4 ---
 drivers/net/wireless/iwlwifi/mvm/tx.c     |  4 ---
 5 files changed, 43 insertions(+), 26 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/d3.c b/drivers/net/wireless/iwlwifi/mvm/d3.c
index 417639f77b01..123a44f031a7 100644
--- a/drivers/net/wireless/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/iwlwifi/mvm/d3.c
@@ -793,6 +793,31 @@ static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	return 0;
 }
 
+static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm,
+				       struct ieee80211_vif *vif)
+{
+	struct iwl_host_cmd cmd = {
+		.id = NON_QOS_TX_COUNTER_CMD,
+		.flags = CMD_SYNC | CMD_WANT_SKB,
+	};
+	int err;
+	u32 size;
+
+	err = iwl_mvm_send_cmd(mvm, &cmd);
+	if (err)
+		return err;
+
+	size = le32_to_cpu(cmd.resp_pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
+	size -= sizeof(cmd.resp_pkt->hdr);
+	if (size != sizeof(__le32))
+		err = -EINVAL;
+	else
+		err = le32_to_cpup((__le32 *)cmd.resp_pkt->data);
+
+	iwl_free_resp(&cmd);
+	return err;
+}
+
 static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
 			     struct cfg80211_wowlan *wowlan,
 			     bool test)
@@ -829,7 +854,6 @@ static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
 	};
 	int ret, i;
 	int len __maybe_unused;
-	u16 seq;
 	u8 old_aux_sta_id, old_ap_sta_id = IWL_MVM_STATION_COUNT;
 
 	if (!wowlan) {
@@ -872,26 +896,15 @@ static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
 
 	mvm_ap_sta = (struct iwl_mvm_sta *)ap_sta->drv_priv;
 
-	/*
-	 * The D3 firmware still hardcodes the AP station ID for the
-	 * BSS we're associated with as 0. Store the real STA ID here
-	 * and assign 0. When we leave this function, we'll restore
-	 * the original value for the resume code.
-	 */
-	old_ap_sta_id = mvm_ap_sta->sta_id;
-	mvm_ap_sta->sta_id = 0;
-	mvmvif->ap_sta_id = 0;
-
 	/* TODO: wowlan_config_cmd.wowlan_ba_teardown_tids */
 
 	wowlan_config_cmd.is_11n_connection = ap_sta->ht_cap.ht_supported;
 
-	/*
-	 * We know the last used seqno, and the uCode expects to know that
-	 * one, it will increment before TX.
-	 */
-	seq = mvm_ap_sta->last_seq_ctl & IEEE80211_SCTL_SEQ;
-	wowlan_config_cmd.non_qos_seq = cpu_to_le16(seq);
+	/* Query the last used seqno and set it */
+	ret = iwl_mvm_get_last_nonqos_seq(mvm, vif);
+	if (ret < 0)
+		goto out_noreset;
+	wowlan_config_cmd.non_qos_seq = cpu_to_le16(ret);
 
 	/*
 	 * For QoS counters, we store the one to use next, so subtract 0x10
@@ -899,7 +912,7 @@ static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
 	 * increment after using the value (i.e. store the next value to use).
 	 */
 	for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
-		seq = mvm_ap_sta->tid_data[i].seq_number;
+		u16 seq = mvm_ap_sta->tid_data[i].seq_number;
 		seq -= 0x10;
 		wowlan_config_cmd.qos_seq[i] = cpu_to_le16(seq);
 	}
@@ -944,6 +957,16 @@ static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
 
 	iwl_trans_stop_device(mvm->trans);
 
+	/*
+	 * The D3 firmware still hardcodes the AP station ID for the
+	 * BSS we're associated with as 0. Store the real STA ID here
+	 * and assign 0. When we leave this function, we'll restore
+	 * the original value for the resume code.
+	 */
+	old_ap_sta_id = mvm_ap_sta->sta_id;
+	mvm_ap_sta->sta_id = 0;
+	mvmvif->ap_sta_id = 0;
+
 	/*
 	 * Set the HW restart bit -- this is mostly true as we're
 	 * going to load new firmware and reprogram that, though
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
index 66264cc5a016..7dfa31affaee 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
@@ -114,6 +114,7 @@ enum {
 	TIME_EVENT_NOTIFICATION = 0x2a,
 	BINDING_CONTEXT_CMD = 0x2b,
 	TIME_QUOTA_CMD = 0x2c,
+	NON_QOS_TX_COUNTER_CMD = 0x2d,
 
 	LQ_CMD = 0x4e,
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index 2fcc8ef88a68..950e809621e7 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -249,6 +249,7 @@ static const char *iwl_mvm_cmd_strings[REPLY_MAX] = {
 	CMD(TIME_EVENT_NOTIFICATION),
 	CMD(BINDING_CONTEXT_CMD),
 	CMD(TIME_QUOTA_CMD),
+	CMD(NON_QOS_TX_COUNTER_CMD),
 	CMD(RADIO_VERSION_NOTIFICATION),
 	CMD(SCAN_REQUEST_CMD),
 	CMD(SCAN_ABORT_CMD),
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.h b/drivers/net/wireless/iwlwifi/mvm/sta.h
index 94b265eb32b8..4dfc359a4bdd 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.h
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.h
@@ -293,10 +293,6 @@ struct iwl_mvm_sta {
 	struct iwl_lq_sta lq_sta;
 	struct ieee80211_vif *vif;
 
-#ifdef CONFIG_PM_SLEEP
-	u16 last_seq_ctl;
-#endif
-
 	/* Temporary, until the new TLC will control the Tx protection */
 	s8 tx_protection;
 	bool tt_tx_protection;
diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c
index e05440d90319..1ef70d0bd9e2 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tx.c
@@ -668,10 +668,6 @@ static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm,
 			iwl_mvm_check_ratid_empty(mvm, sta, tid);
 			spin_unlock_bh(&mvmsta->lock);
 		}
-
-#ifdef CONFIG_PM_SLEEP
-		mvmsta->last_seq_ctl = seq_ctl;
-#endif
 	} else {
 		sta = NULL;
 		mvmsta = NULL;
-- 
cgit 


From 91b05d103545500285790a09d02e763a61f2020f Mon Sep 17 00:00:00 2001
From: Oren Givon <oren.givon@intel.com>
Date: Mon, 19 Aug 2013 08:36:48 +0300
Subject: iwlwifi: mvm: debugfs: add an option to set antennas for scan command

Add an option to set rx antennas for the scan command from debugfs.
Create a file called ant_rxchain in the mvm debugfs directory.
To choose antennas, write a number between 1-7 to ant_rxchain.
Write 1 for A, 2 for B, 3 for AB and so on.

Signed-off-by: Oren Givon <oren.givon@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/debugfs.c | 57 ++++++++++++++++++++++++++++++
 drivers/net/wireless/iwlwifi/mvm/mvm.h     |  3 ++
 drivers/net/wireless/iwlwifi/mvm/scan.c    |  6 +++-
 3 files changed, 65 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index aac81b8984b0..1e9e6f384a82 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -757,6 +757,59 @@ static ssize_t iwl_dbgfs_fw_restart_write(struct file *file,
 	return count;
 }
 
+static ssize_t
+iwl_dbgfs_scan_ant_rxchain_read(struct file *file,
+				char __user *user_buf,
+				size_t count, loff_t *ppos)
+{
+	struct iwl_mvm *mvm = file->private_data;
+	int pos = 0;
+	char buf[32];
+	const size_t bufsz = sizeof(buf);
+
+	/* print which antennas were set for the scan command by the user */
+	pos += scnprintf(buf + pos, bufsz - pos, "Antennas for scan: ");
+	if (mvm->scan_rx_ant & ANT_A)
+		pos += scnprintf(buf + pos, bufsz - pos, "A");
+	if (mvm->scan_rx_ant & ANT_B)
+		pos += scnprintf(buf + pos, bufsz - pos, "B");
+	if (mvm->scan_rx_ant & ANT_C)
+		pos += scnprintf(buf + pos, bufsz - pos, "C");
+	pos += scnprintf(buf + pos, bufsz - pos, " (%hhx)\n", mvm->scan_rx_ant);
+
+	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
+static ssize_t
+iwl_dbgfs_scan_ant_rxchain_write(struct file *file,
+				 const char __user *user_buf,
+				 size_t count, loff_t *ppos)
+{
+	struct iwl_mvm *mvm = file->private_data;
+	char buf[8];
+	int buf_size;
+	u8 scan_rx_ant;
+
+	memset(buf, 0, sizeof(buf));
+	buf_size = min(count, sizeof(buf) - 1);
+
+	/* get the argument from the user and check if it is valid */
+	if (copy_from_user(buf, user_buf, buf_size))
+		return -EFAULT;
+	if (sscanf(buf, "%hhx", &scan_rx_ant) != 1)
+		return -EINVAL;
+	if (scan_rx_ant > ANT_ABC)
+		return -EINVAL;
+	if (scan_rx_ant & ~iwl_fw_valid_rx_ant(mvm->fw))
+		return -EINVAL;
+
+	/* change the rx antennas for scan command */
+	mvm->scan_rx_ant = scan_rx_ant;
+
+	return count;
+}
+
+
 static void iwl_dbgfs_update_bf(struct ieee80211_vif *vif,
 				enum iwl_dbgfs_bf_mask param, int value)
 {
@@ -1067,6 +1120,8 @@ MVM_DEBUGFS_WRITE_FILE_OPS(power_down_allow);
 MVM_DEBUGFS_WRITE_FILE_OPS(power_down_d3_allow);
 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart);
+MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain);
+
 #ifdef CONFIG_PM_SLEEP
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(d3_sram);
 #endif
@@ -1091,6 +1146,8 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
 	MVM_DEBUGFS_ADD_FILE(power_down_d3_allow, mvm->debugfs_dir, S_IWUSR);
 	MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
 	MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
+	MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
+			     S_IWUSR | S_IRUSR);
 #ifdef CONFIG_PM_SLEEP
 	MVM_DEBUGFS_ADD_FILE(d3_sram, mvm->debugfs_dir, S_IRUSR | S_IWUSR);
 	MVM_DEBUGFS_ADD_FILE(d3_test, mvm->debugfs_dir, S_IRUSR);
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 2becb091a055..0d3bdef660b0 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -470,6 +470,9 @@ struct iwl_mvm {
 	enum iwl_scan_status scan_status;
 	struct iwl_scan_cmd *scan_cmd;
 
+	/* rx chain antennas set through debugfs for the scan command */
+	u8 scan_rx_ant;
+
 	/* Internal station */
 	struct iwl_mvm_int_sta aux_sta;
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index 9a7ab8495300..71170fcc8f14 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -74,8 +74,12 @@
 static inline __le16 iwl_mvm_scan_rx_chain(struct iwl_mvm *mvm)
 {
 	u16 rx_chain;
-	u8 rx_ant = iwl_fw_valid_rx_ant(mvm->fw);
+	u8 rx_ant;
 
+	if (mvm->scan_rx_ant != ANT_NONE)
+		rx_ant = mvm->scan_rx_ant;
+	else
+		rx_ant = iwl_fw_valid_rx_ant(mvm->fw);
 	rx_chain = rx_ant << PHY_RX_CHAIN_VALID_POS;
 	rx_chain |= rx_ant << PHY_RX_CHAIN_FORCE_MIMO_SEL_POS;
 	rx_chain |= rx_ant << PHY_RX_CHAIN_FORCE_SEL_POS;
-- 
cgit 


From 2e0cc86535fe85910935f896f098f8d74389a355 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 20 Aug 2013 08:19:32 +0300
Subject: iwlwifi: mvm: use CTS to Self if firmware allows it

Newer firmware fixed a bug that prevented to use CTS to
self. Firmwares with API greater than 8 have this bug
fixed. Enable the feature for these firmwares only.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index 5fe23a5ea9b6..c01cf17eedb2 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -559,8 +559,12 @@ static void iwl_mvm_mac_ctxt_cmd_common(struct iwl_mvm *mvm,
 		cmd->qos_flags |= cpu_to_le32(MAC_QOS_FLG_UPDATE_EDCA);
 
 	/* Don't use cts to self as the fw doesn't support it currently. */
-	if (vif->bss_conf.use_cts_prot)
+	if (vif->bss_conf.use_cts_prot) {
 		cmd->protection_flags |= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT);
+		if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 8)
+			cmd->protection_flags |=
+				cpu_to_le32(MAC_PROT_FLG_SELF_CTS_EN);
+	}
 
 	/*
 	 * I think that we should enable these 2 flags regardless the HT PROT
-- 
cgit 


From 4837b448dfa90d76bc3a73e12425ce85f0186865 Mon Sep 17 00:00:00 2001
From: Eyal Shapira <eyal@wizery.com>
Date: Sun, 28 Jul 2013 23:02:46 +0000
Subject: iwlwifi: mvm: remove rs FSM actions relevant only for 3 antennas

The XXX_SWITCH_ANTENNA1/2 actions keep track of switching between
3 single antennas or between 3 pairs in case of MIMO2 on a MIMO3 device.
As current and future chips will have at most 2 antennas drop these.
While at it also convert the actions into enums and cleanup
the code a bit.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/rs.c | 79 ++++++++++++-----------------------
 drivers/net/wireless/iwlwifi/mvm/rs.h | 36 +++++++++-------
 2 files changed, 48 insertions(+), 67 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 4ffaa3fa153f..3cfcea547458 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -1089,6 +1089,19 @@ static bool iwl_is_ht40_tx_allowed(struct ieee80211_sta *sta)
 	return sta->bandwidth >= IEEE80211_STA_RX_BW_40;
 }
 
+/* Move to the next action and wrap around to the first action in case
+ * we're at the last action. Assumes actions start at 0.
+ */
+static inline void rs_move_next_action(struct iwl_scale_tbl_info *tbl,
+				       u8 last_action)
+{
+	BUILD_BUG_ON(IWL_LEGACY_FIRST_ACTION != 0);
+	BUILD_BUG_ON(IWL_SISO_FIRST_ACTION != 0);
+	BUILD_BUG_ON(IWL_MIMO2_FIRST_ACTION != 0);
+
+	tbl->action = (tbl->action + 1) % (last_action + 1);
+}
+
 /*
  * Set up search table for MIMO2
  */
@@ -1211,14 +1224,10 @@ static int rs_move_legacy_other(struct iwl_mvm *mvm,
 	while (1) {
 		lq_sta->action_counter++;
 		switch (tbl->action) {
-		case IWL_LEGACY_SWITCH_ANTENNA1:
-		case IWL_LEGACY_SWITCH_ANTENNA2:
+		case IWL_LEGACY_SWITCH_ANTENNA:
 			IWL_DEBUG_RATE(mvm, "LQ: Legacy toggle Antenna\n");
 
-			if ((tbl->action == IWL_LEGACY_SWITCH_ANTENNA1 &&
-			     tx_chains_num <= 1) ||
-			    (tbl->action == IWL_LEGACY_SWITCH_ANTENNA2 &&
-			     tx_chains_num <= 2))
+			if (tx_chains_num <= 1)
 				break;
 
 			/* Don't change antenna if success has been great */
@@ -1273,9 +1282,7 @@ static int rs_move_legacy_other(struct iwl_mvm *mvm,
 		default:
 			WARN_ON_ONCE(1);
 		}
-		tbl->action++;
-		if (tbl->action > IWL_LEGACY_SWITCH_MIMO2)
-			tbl->action = IWL_LEGACY_SWITCH_ANTENNA1;
+		rs_move_next_action(tbl, IWL_LEGACY_LAST_ACTION);
 
 		if (tbl->action == start_action)
 			break;
@@ -1285,9 +1292,7 @@ static int rs_move_legacy_other(struct iwl_mvm *mvm,
 
 out:
 	lq_sta->search_better_tbl = 1;
-	tbl->action++;
-	if (tbl->action > IWL_LEGACY_SWITCH_MIMO2)
-		tbl->action = IWL_LEGACY_SWITCH_ANTENNA1;
+	rs_move_next_action(tbl, IWL_LEGACY_LAST_ACTION);
 	if (update_search_tbl_counter)
 		search_tbl->action = tbl->action;
 	return 0;
@@ -1320,7 +1325,7 @@ static int rs_move_siso_to_other(struct iwl_mvm *mvm,
 		break;
 	case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
 		/* avoid antenna B unless MIMO */
-		if (tbl->action == IWL_SISO_SWITCH_ANTENNA2)
+		if (tbl->action == IWL_SISO_SWITCH_ANTENNA)
 			tbl->action = IWL_SISO_SWITCH_MIMO2;
 		break;
 	case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
@@ -1328,8 +1333,8 @@ static int rs_move_siso_to_other(struct iwl_mvm *mvm,
 		/* avoid antenna B and MIMO */
 		valid_tx_ant =
 			first_antenna(iwl_fw_valid_tx_ant(mvm->fw));
-		if (tbl->action != IWL_SISO_SWITCH_ANTENNA1)
-			tbl->action = IWL_SISO_SWITCH_ANTENNA1;
+		if (tbl->action != IWL_SISO_SWITCH_ANTENNA)
+			tbl->action = IWL_SISO_SWITCH_ANTENNA;
 		break;
 	default:
 		IWL_ERR(mvm, "Invalid BT load %d",
@@ -1341,13 +1346,9 @@ static int rs_move_siso_to_other(struct iwl_mvm *mvm,
 	while (1) {
 		lq_sta->action_counter++;
 		switch (tbl->action) {
-		case IWL_SISO_SWITCH_ANTENNA1:
-		case IWL_SISO_SWITCH_ANTENNA2:
+		case IWL_SISO_SWITCH_ANTENNA:
 			IWL_DEBUG_RATE(mvm, "LQ: SISO toggle Antenna\n");
-			if ((tbl->action == IWL_SISO_SWITCH_ANTENNA1 &&
-			     tx_chains_num <= 1) ||
-			    (tbl->action == IWL_SISO_SWITCH_ANTENNA2 &&
-			     tx_chains_num <= 2))
+			if (tx_chains_num <= 1)
 				break;
 
 			if (window->success_ratio >= IWL_RS_GOOD_RATIO &&
@@ -1412,9 +1413,7 @@ static int rs_move_siso_to_other(struct iwl_mvm *mvm,
 		default:
 			WARN_ON_ONCE(1);
 		}
-		tbl->action++;
-		if (tbl->action > IWL_SISO_SWITCH_GI)
-			tbl->action = IWL_SISO_SWITCH_ANTENNA1;
+		rs_move_next_action(tbl, IWL_SISO_LAST_ACTION);
 
 		if (tbl->action == start_action)
 			break;
@@ -1424,9 +1423,7 @@ static int rs_move_siso_to_other(struct iwl_mvm *mvm,
 
  out:
 	lq_sta->search_better_tbl = 1;
-	tbl->action++;
-	if (tbl->action > IWL_SISO_SWITCH_GI)
-		tbl->action = IWL_SISO_SWITCH_ANTENNA1;
+	rs_move_next_action(tbl, IWL_SISO_LAST_ACTION);
 	if (update_search_tbl_counter)
 		search_tbl->action = tbl->action;
 
@@ -1444,13 +1441,11 @@ static int rs_move_mimo2_to_other(struct iwl_mvm *mvm,
 	struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
 	struct iwl_scale_tbl_info *search_tbl =
 				&(lq_sta->lq_info[(1 - lq_sta->active_tbl)]);
-	struct iwl_rate_scale_data *window = &(tbl->win[index]);
 	struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
 	u32 sz = (sizeof(struct iwl_scale_tbl_info) -
 		  (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT));
 	u8 start_action;
 	u8 valid_tx_ant = iwl_fw_valid_tx_ant(mvm->fw);
-	u8 tx_chains_num = num_of_ant(valid_tx_ant);
 	u8 update_search_tbl_counter = 0;
 	int ret;
 
@@ -1479,24 +1474,6 @@ static int rs_move_mimo2_to_other(struct iwl_mvm *mvm,
 	while (1) {
 		lq_sta->action_counter++;
 		switch (tbl->action) {
-		case IWL_MIMO2_SWITCH_ANTENNA1:
-		case IWL_MIMO2_SWITCH_ANTENNA2:
-			IWL_DEBUG_RATE(mvm, "LQ: MIMO2 toggle Antennas\n");
-
-			if (tx_chains_num <= 2)
-				break;
-
-			if (window->success_ratio >= IWL_RS_GOOD_RATIO)
-				break;
-
-			memcpy(search_tbl, tbl, sz);
-			if (rs_toggle_antenna(valid_tx_ant,
-					      &search_tbl->current_rate,
-					      search_tbl)) {
-				update_search_tbl_counter = 1;
-				goto out;
-			}
-			break;
 		case IWL_MIMO2_SWITCH_SISO_A:
 		case IWL_MIMO2_SWITCH_SISO_B:
 			IWL_DEBUG_RATE(mvm, "LQ: MIMO2 switch to SISO\n");
@@ -1553,9 +1530,7 @@ static int rs_move_mimo2_to_other(struct iwl_mvm *mvm,
 		default:
 			WARN_ON_ONCE(1);
 		}
-		tbl->action++;
-		if (tbl->action > IWL_MIMO2_SWITCH_GI)
-			tbl->action = IWL_MIMO2_SWITCH_ANTENNA1;
+		rs_move_next_action(tbl, IWL_MIMO2_LAST_ACTION);
 
 		if (tbl->action == start_action)
 			break;
@@ -1564,9 +1539,7 @@ static int rs_move_mimo2_to_other(struct iwl_mvm *mvm,
 	return 0;
  out:
 	lq_sta->search_better_tbl = 1;
-	tbl->action++;
-	if (tbl->action > IWL_MIMO2_SWITCH_GI)
-		tbl->action = IWL_MIMO2_SWITCH_ANTENNA1;
+	rs_move_next_action(tbl, IWL_MIMO2_LAST_ACTION);
 	if (update_search_tbl_counter)
 		search_tbl->action = tbl->action;
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.h b/drivers/net/wireless/iwlwifi/mvm/rs.h
index 335cf1682902..1e47a0c19b75 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.h
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.h
@@ -139,25 +139,33 @@ enum {
 #define IWL_RATE_DECREASE_TH		1920	/*  15% */
 
 /* possible actions when in legacy mode */
-#define IWL_LEGACY_SWITCH_ANTENNA1      0
-#define IWL_LEGACY_SWITCH_ANTENNA2      1
-#define IWL_LEGACY_SWITCH_SISO          2
-#define IWL_LEGACY_SWITCH_MIMO2         3
+enum {
+	IWL_LEGACY_SWITCH_ANTENNA,
+	IWL_LEGACY_SWITCH_SISO,
+	IWL_LEGACY_SWITCH_MIMO2,
+	IWL_LEGACY_FIRST_ACTION = IWL_LEGACY_SWITCH_ANTENNA,
+	IWL_LEGACY_LAST_ACTION = IWL_LEGACY_SWITCH_MIMO2,
+};
 
 /* possible actions when in siso mode */
-#define IWL_SISO_SWITCH_ANTENNA1        0
-#define IWL_SISO_SWITCH_ANTENNA2        1
-#define IWL_SISO_SWITCH_MIMO2           2
-#define IWL_SISO_SWITCH_GI              3
+enum {
+	IWL_SISO_SWITCH_ANTENNA,
+	IWL_SISO_SWITCH_MIMO2,
+	IWL_SISO_SWITCH_GI,
+	IWL_SISO_FIRST_ACTION = IWL_SISO_SWITCH_ANTENNA,
+	IWL_SISO_LAST_ACTION = IWL_SISO_SWITCH_GI,
+};
 
 /* possible actions when in mimo mode */
-#define IWL_MIMO2_SWITCH_ANTENNA1       0
-#define IWL_MIMO2_SWITCH_ANTENNA2       1
-#define IWL_MIMO2_SWITCH_SISO_A         2
-#define IWL_MIMO2_SWITCH_SISO_B         3
-#define IWL_MIMO2_SWITCH_GI             4
+enum {
+	IWL_MIMO2_SWITCH_SISO_A,
+	IWL_MIMO2_SWITCH_SISO_B,
+	IWL_MIMO2_SWITCH_GI,
+	IWL_MIMO2_FIRST_ACTION = IWL_MIMO2_SWITCH_SISO_A,
+	IWL_MIMO2_LAST_ACTION = IWL_MIMO2_SWITCH_GI,
+};
 
-#define IWL_MAX_SEARCH IWL_MIMO2_SWITCH_GI
+#define IWL_MAX_SEARCH IWL_MIMO2_LAST_ACTION
 
 #define IWL_ACTION_LIMIT		3	/* # possible actions */
 
-- 
cgit 


From 016d27e13b08416988fa06013f66e94fa195244a Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 3 May 2013 11:16:15 +0200
Subject: iwlwifi: mvm: give client MACs time to synchronise during restart

When firmware restart happens, the timers are obviously reset and
the new firmware has no synchronisation with the AP as we program
timings to the pre-restart values. The firmware should attempt to
synchronise by itself, but in multi-channel scenarios this isn't
easy, particularly since it has to try to keep service quality up
for other MACs.

To make it more reliable, give each client MAC some time to catch
beacons when restarting or resuming. Service quality was impacted
anyway (or in resume doesn't really matter much.)

Reviewed-by: Moshe Island <moshe.island@intel.com>
Reviewed-by: Ilan Peer <ilan.peer@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/mac80211.c   | 23 ++++++++++++++++++++++-
 drivers/net/wireless/iwlwifi/mvm/time-event.c |  5 +++--
 drivers/net/wireless/iwlwifi/mvm/time-event.h |  4 +++-
 3 files changed, 28 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 3261730181fa..77166520bc01 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -803,6 +803,27 @@ static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
 				return;
 			}
 			iwl_mvm_configure_mcast_filter(mvm, vif);
+
+			if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
+				     &mvm->status)) {
+				/*
+				 * If we're restarting then the firmware will
+				 * obviously have lost synchronisation with
+				 * the AP. It will attempt to synchronise by
+				 * itself, but we can make it more reliable by
+				 * scheduling a session protection time event.
+				 *
+				 * The firmware needs to receive a beacon to
+				 * catch up with synchronisation, use 110% of
+				 * the beacon interval.
+				 *
+				 * Set a large maximum delay to allow for more
+				 * than a single interface.
+				 */
+				u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
+				iwl_mvm_protect_session(mvm, vif, dur, dur,
+							5 * dur);
+			}
 		} else if (mvmvif->ap_sta_id != IWL_MVM_STATION_COUNT) {
 			/* remove AP station now that the MAC is unassoc */
 			ret = iwl_mvm_rm_sta_id(mvm, vif, mvmvif->ap_sta_id);
@@ -1170,7 +1191,7 @@ static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
 
 	mutex_lock(&mvm->mutex);
 	/* Try really hard to protect the session and hear a beacon */
-	iwl_mvm_protect_session(mvm, vif, duration, min_duration);
+	iwl_mvm_protect_session(mvm, vif, duration, min_duration, 500);
 	mutex_unlock(&mvm->mutex);
 }
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/time-event.c b/drivers/net/wireless/iwlwifi/mvm/time-event.c
index 76a3c177e100..33cf56fdfc41 100644
--- a/drivers/net/wireless/iwlwifi/mvm/time-event.c
+++ b/drivers/net/wireless/iwlwifi/mvm/time-event.c
@@ -387,7 +387,8 @@ static int iwl_mvm_time_event_send_add(struct iwl_mvm *mvm,
 
 void iwl_mvm_protect_session(struct iwl_mvm *mvm,
 			     struct ieee80211_vif *vif,
-			     u32 duration, u32 min_duration)
+			     u32 duration, u32 min_duration,
+			     u32 max_delay)
 {
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 	struct iwl_mvm_time_event_data *te_data = &mvmvif->time_event_data;
@@ -426,7 +427,7 @@ void iwl_mvm_protect_session(struct iwl_mvm *mvm,
 		cpu_to_le32(iwl_read_prph(mvm->trans, DEVICE_SYSTEM_TIME_REG));
 
 	time_cmd.max_frags = TE_V2_FRAG_NONE;
-	time_cmd.max_delay = cpu_to_le32(500);
+	time_cmd.max_delay = cpu_to_le32(max_delay);
 	/* TODO: why do we need to interval = bi if it is not periodic? */
 	time_cmd.interval = cpu_to_le32(1);
 	time_cmd.duration = cpu_to_le32(duration);
diff --git a/drivers/net/wireless/iwlwifi/mvm/time-event.h b/drivers/net/wireless/iwlwifi/mvm/time-event.h
index f86c51065ed3..d9c8d6cfa2db 100644
--- a/drivers/net/wireless/iwlwifi/mvm/time-event.h
+++ b/drivers/net/wireless/iwlwifi/mvm/time-event.h
@@ -123,6 +123,7 @@
  * @duration: the duration of the session in TU.
  * @min_duration: will start a new session if the current session will end
  *	in less than min_duration.
+ * @max_delay: maximum delay before starting the time event (in TU)
  *
  * This function can be used to start a session protection which means that the
  * fw will stay on the channel for %duration_ms milliseconds. This function
@@ -133,7 +134,8 @@
  */
 void iwl_mvm_protect_session(struct iwl_mvm *mvm,
 			     struct ieee80211_vif *vif,
-			     u32 duration, u32 min_duration);
+			     u32 duration, u32 min_duration,
+			     u32 max_delay);
 
 /**
  * iwl_mvm_stop_session_protection - cancel the session protection.
-- 
cgit 


From 911222b57b8248aef81c14bf5a08b7e041850f8f Mon Sep 17 00:00:00 2001
From: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Date: Sun, 21 Jul 2013 17:37:19 +0300
Subject: iwlwifi: mvm: Implement BT coex notifications

Use beacon statistics notification handler
to notify bt coex about rssi changes.
Mac80211's mechanism is not used anymore.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/bt-coex.c  | 16 ++++++++++++----
 drivers/net/wireless/iwlwifi/mvm/mac80211.c | 11 -----------
 drivers/net/wireless/iwlwifi/mvm/mvm.h      |  6 ++++++
 drivers/net/wireless/iwlwifi/mvm/rx.c       | 21 +++++++++++++++++++++
 4 files changed, 39 insertions(+), 15 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index 0fad98b85f60..bba5947fd652 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -467,11 +467,14 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 		data->reduced_tx_power = false;
 
 		/* ... and there is no need to get reports on RSSI any more. */
-		ieee80211_disable_rssi_reports(vif);
+		mvmvif->bf_data.last_bt_coex_event = 0;
+		mvmvif->bf_data.bt_coex_max_thold = 0;
+		mvmvif->bf_data.bt_coex_min_thold = 0;
 		return;
 	}
 
-	ave_rssi = ieee80211_ave_rssi(vif);
+	/* try to get the avg rssi from fw */
+	ave_rssi = mvmvif->bf_data.ave_beacon_signal;
 
 	/* if the RSSI isn't valid, fake it is very low */
 	if (!ave_rssi)
@@ -499,8 +502,13 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 	}
 
 	/* Begin to monitor the RSSI: it may influence the reduced Tx power */
-	ieee80211_enable_rssi_reports(vif, BT_DISABLE_REDUCED_TXPOWER_THRESHOLD,
-				      BT_ENABLE_REDUCED_TXPOWER_THRESHOLD);
+
+	/* reset previous bt coex event tracking */
+	mvmvif->bf_data.last_bt_coex_event = 0;
+	mvmvif->bf_data.bt_coex_max_thold =
+		BT_ENABLE_REDUCED_TXPOWER_THRESHOLD;
+	mvmvif->bf_data.bt_coex_min_thold =
+		BT_DISABLE_REDUCED_TXPOWER_THRESHOLD;
 }
 
 static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 77166520bc01..141fc547dc2d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -1578,15 +1578,6 @@ static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
 	return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
 }
 
-static void iwl_mvm_mac_rssi_callback(struct ieee80211_hw *hw,
-				      struct ieee80211_vif *vif,
-				      enum ieee80211_rssi_event rssi_event)
-{
-	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
-
-	iwl_mvm_bt_rssi_event(mvm, vif, rssi_event);
-}
-
 #ifdef CONFIG_NL80211_TESTMODE
 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
 	[IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
@@ -1677,8 +1668,6 @@ struct ieee80211_ops iwl_mvm_hw_ops = {
 	.update_tkip_key = iwl_mvm_mac_update_tkip_key,
 	.remain_on_channel = iwl_mvm_roc,
 	.cancel_remain_on_channel = iwl_mvm_cancel_roc,
-	.rssi_callback = iwl_mvm_mac_rssi_callback,
-
 	.add_chanctx = iwl_mvm_add_chanctx,
 	.remove_chanctx = iwl_mvm_remove_chanctx,
 	.change_chanctx = iwl_mvm_change_chanctx,
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 0d3bdef660b0..d7b0aeea380c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -241,12 +241,18 @@ enum iwl_mvm_smps_type_request {
 * @last_beacon_signal: last beacon rssi signal in dbm
 * @ave_beacon_signal: average beacon signal
 * @last_cqm_event: rssi of the last cqm event
+* @bt_coex_min_thold: minimum threshold for BT coex
+* @bt_coex_max_thold: maximum threshold for BT coex
+* @last_bt_coex_event: rssi of the last BT coex event
 */
 struct iwl_mvm_vif_bf_data {
 	bool bf_enabled;
 	bool ba_enabled;
 	s8 ave_beacon_signal;
 	s8 last_cqm_event;
+	s8 bt_coex_min_thold;
+	s8 bt_coex_max_thold;
+	s8 last_bt_coex_event;
 };
 
 /**
diff --git a/drivers/net/wireless/iwlwifi/mvm/rx.c b/drivers/net/wireless/iwlwifi/mvm/rx.c
index 2a8cb5a60535..a4af5019a496 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rx.c
@@ -422,6 +422,27 @@ static void iwl_mvm_stat_iterator(void *_data, u8 *mac,
 
 	mvmvif->bf_data.ave_beacon_signal = sig;
 
+	/* BT Coex */
+	if (mvmvif->bf_data.bt_coex_min_thold !=
+	    mvmvif->bf_data.bt_coex_max_thold) {
+		last_event = mvmvif->bf_data.last_bt_coex_event;
+		if (sig > mvmvif->bf_data.bt_coex_max_thold &&
+		    (last_event <= mvmvif->bf_data.bt_coex_min_thold ||
+		     last_event == 0)) {
+			mvmvif->bf_data.last_bt_coex_event = sig;
+			IWL_DEBUG_RX(mvm, "cqm_iterator bt coex high %d\n",
+				     sig);
+			iwl_mvm_bt_rssi_event(mvm, vif, RSSI_EVENT_HIGH);
+		} else if (sig < mvmvif->bf_data.bt_coex_min_thold &&
+			   (last_event >= mvmvif->bf_data.bt_coex_max_thold ||
+			    last_event == 0)) {
+			mvmvif->bf_data.last_bt_coex_event = sig;
+			IWL_DEBUG_RX(mvm, "cqm_iterator bt coex low %d\n",
+				     sig);
+			iwl_mvm_bt_rssi_event(mvm, vif, RSSI_EVENT_LOW);
+		}
+	}
+
 	if (!(vif->driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
 		return;
 
-- 
cgit 


From 3dd1cd2d33d94fd56228b9a7f7b467ceccae8f4d Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 2 Oct 2013 12:05:24 +0200
Subject: iwlwifi: mvm: fix locking in iwl_mvm_bt_rssi_event()

This will deadlock due to commit 9f34783863bea806
("iwlwifi: mvm: Implement BT coex notifications"):

  =============================================
  [ INFO: possible recursive locking detected ]
  3.5.0 #10 Tainted: G        W  O
  ---------------------------------------------
  kworker/2:1/5214 is trying to acquire lock:
   (&mvm->mutex){+.+.+.}, at: [<ffffffffa03be23e>] iwl_mvm_bt_rssi_event+0x5e/0x210 [iwlmvm]

  but task is already holding lock:
   (&mvm->mutex){+.+.+.}, at: [<ffffffffa03ab2d9>] iwl_mvm_async_handlers_wk+0x49/0x120 [iwlmvm]

  other info that might help us debug this:
   Possible unsafe locking scenario:

         CPU0
         ----
    lock(&mvm->mutex);
    lock(&mvm->mutex);

   *** DEADLOCK ***

Change-Id: I9104f252b34676e2f7ffcd51166f95367e08a4d9
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Reviewed-on: https://gerrit.rds.intel.com/21887
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Tested-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

Conflicts:
	drivers/net/wireless/iwlwifi/mvm/bt-coex.c
---
 drivers/net/wireless/iwlwifi/mvm/bt-coex.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index bba5947fd652..ef59f8412bd1 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -602,15 +602,15 @@ void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	};
 	int ret;
 
-	mutex_lock(&mvm->mutex);
+	lockdep_assert_held(&mvm->mutex);
 
 	/* Rssi update while not associated ?! */
 	if (WARN_ON_ONCE(mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT))
-		goto out_unlock;
+		return;
 
 	/* No open connection - reports should be disabled */
 	if (!BT_MBOX_MSG(&mvm->last_bt_notif, 3, OPEN_CON_2))
-		goto out_unlock;
+		return;
 
 	IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
 		       rssi_event == RSSI_EVENT_HIGH ? "HIGH" : "LOW");
@@ -641,9 +641,6 @@ void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 
 	if (iwl_mvm_bt_udpate_ctrl_kill_msk(mvm, data.reduced_tx_power))
 		IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
-
- out_unlock:
-	mutex_unlock(&mvm->mutex);
 }
 
 void iwl_mvm_bt_coex_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
-- 
cgit 


From b34b912f2c60e70ce76468d8e8e617cdbc736c94 Mon Sep 17 00:00:00 2001
From: Alexander Bondar <alexander.bondar@intel.com>
Date: Sun, 18 Aug 2013 16:22:52 +0300
Subject: iwlwifi: mvm: Adjust some power management constants

Adjust the following:

- RX/TX AP-to-PSM timeout in case of uAPSD and PBW snoozing
- PSM-to-AM TX/RX heavy traffic thresholds
- Beacon abort escape timer for D3/D0i3

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/constants.h    |  4 ++-
 drivers/net/wireless/iwlwifi/mvm/fw-api-power.h |  2 +-
 drivers/net/wireless/iwlwifi/mvm/power.c        | 34 ++++++++++++++++++-------
 3 files changed, 29 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/constants.h b/drivers/net/wireless/iwlwifi/mvm/constants.h
index 2bf29f7992ee..4b6d670c3509 100644
--- a/drivers/net/wireless/iwlwifi/mvm/constants.h
+++ b/drivers/net/wireless/iwlwifi/mvm/constants.h
@@ -70,7 +70,9 @@
 #define IWL_MVM_UAPSD_RX_DATA_TIMEOUT		(50 * USEC_PER_MSEC)
 #define IWL_MVM_UAPSD_TX_DATA_TIMEOUT		(50 * USEC_PER_MSEC)
 #define IWL_MVM_PS_HEAVY_TX_THLD_PACKETS	20
-#define IWL_MVM_PS_HEAVY_RX_THLD_PACKETS	20
+#define IWL_MVM_PS_HEAVY_RX_THLD_PACKETS	8
+#define IWL_MVM_PS_SNOOZE_HEAVY_TX_THLD_PACKETS	30
+#define IWL_MVM_PS_SNOOZE_HEAVY_RX_THLD_PACKETS	20
 #define IWL_MVM_PS_HEAVY_TX_THLD_PERCENT	50
 #define IWL_MVM_PS_HEAVY_RX_THLD_PERCENT	50
 #define IWL_MVM_PS_SNOOZE_INTERVAL		25
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
index 8e7ab41079ca..eac7a68c802e 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
@@ -290,7 +290,7 @@ struct iwl_beacon_filter_cmd {
 #define IWL_BF_ESCAPE_TIMER_MIN 0
 
 #define IWL_BA_ESCAPE_TIMER_DEFAULT 6
-#define IWL_BA_ESCAPE_TIMER_D3 6
+#define IWL_BA_ESCAPE_TIMER_D3 9
 #define IWL_BA_ESCAPE_TIMER_MAX 1024
 #define IWL_BA_ESCAPE_TIMER_MIN 0
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/power.c b/drivers/net/wireless/iwlwifi/mvm/power.c
index 21407a353a3b..3752ddd0b2e0 100644
--- a/drivers/net/wireless/iwlwifi/mvm/power.c
+++ b/drivers/net/wireless/iwlwifi/mvm/power.c
@@ -297,11 +297,6 @@ static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm,
 	}
 
 	if (cmd->flags & cpu_to_le16(POWER_FLAGS_ADVANCE_PM_ENA_MSK)) {
-		cmd->rx_data_timeout_uapsd =
-			cpu_to_le32(IWL_MVM_UAPSD_RX_DATA_TIMEOUT);
-		cmd->tx_data_timeout_uapsd =
-			cpu_to_le32(IWL_MVM_UAPSD_TX_DATA_TIMEOUT);
-
 		if (cmd->uapsd_ac_flags == (BIT(IEEE80211_AC_VO) |
 					    BIT(IEEE80211_AC_VI) |
 					    BIT(IEEE80211_AC_BE) |
@@ -316,10 +311,31 @@ static void iwl_mvm_power_build_cmd(struct iwl_mvm *mvm,
 		}
 
 		cmd->uapsd_max_sp = IWL_UAPSD_MAX_SP;
-		cmd->heavy_tx_thld_packets =
-			IWL_MVM_PS_HEAVY_TX_THLD_PACKETS;
-		cmd->heavy_rx_thld_packets =
-			IWL_MVM_PS_HEAVY_RX_THLD_PACKETS;
+
+		if (mvm->cur_ucode == IWL_UCODE_WOWLAN || cmd->flags &
+		    cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
+			cmd->rx_data_timeout_uapsd =
+				cpu_to_le32(IWL_MVM_WOWLAN_PS_RX_DATA_TIMEOUT);
+			cmd->tx_data_timeout_uapsd =
+				cpu_to_le32(IWL_MVM_WOWLAN_PS_TX_DATA_TIMEOUT);
+		} else {
+			cmd->rx_data_timeout_uapsd =
+				cpu_to_le32(IWL_MVM_UAPSD_RX_DATA_TIMEOUT);
+			cmd->tx_data_timeout_uapsd =
+				cpu_to_le32(IWL_MVM_UAPSD_TX_DATA_TIMEOUT);
+		}
+
+		if (cmd->flags & cpu_to_le16(POWER_FLAGS_SNOOZE_ENA_MSK)) {
+			cmd->heavy_tx_thld_packets =
+				IWL_MVM_PS_SNOOZE_HEAVY_TX_THLD_PACKETS;
+			cmd->heavy_rx_thld_packets =
+				IWL_MVM_PS_SNOOZE_HEAVY_RX_THLD_PACKETS;
+		} else {
+			cmd->heavy_tx_thld_packets =
+				IWL_MVM_PS_HEAVY_TX_THLD_PACKETS;
+			cmd->heavy_rx_thld_packets =
+				IWL_MVM_PS_HEAVY_RX_THLD_PACKETS;
+		}
 		cmd->heavy_tx_thld_percentage =
 			IWL_MVM_PS_HEAVY_TX_THLD_PERCENT;
 		cmd->heavy_rx_thld_percentage =
-- 
cgit 


From 5a258aaeecba57f1bf8bb5d1603c7c094377992b Mon Sep 17 00:00:00 2001
From: Max Stepanov <Max.Stepanov@intel.com>
Date: Sun, 7 Apr 2013 09:11:21 +0300
Subject: iwlwifi: mvm: split ADD_STA and ADD_STA_KEY in firmware API

Add support for new station management firmware API. The old
ADD_MODIFY_STA command has been replaced with two: a modified
ADD_MODIFY_STA and a new ADD_MODIFY_STA_KEY command.

Signed-off-by: Max Stepanov <Max.Stepanov@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-fw.h         |   2 +
 drivers/net/wireless/iwlwifi/mvm/fw-api-sta.h |  55 +++++++-
 drivers/net/wireless/iwlwifi/mvm/fw-api.h     |   1 +
 drivers/net/wireless/iwlwifi/mvm/ops.c        |   1 +
 drivers/net/wireless/iwlwifi/mvm/sta.c        | 186 ++++++++++++++++++++------
 5 files changed, 200 insertions(+), 45 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-fw.h b/drivers/net/wireless/iwlwifi/iwl-fw.h
index a1223680bc70..3ddbc1bda74e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw.h
@@ -80,6 +80,7 @@
  * @IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS: D3 image supports up to six
  *	(rather than two) IPv6 addresses
  * @IWL_UCODE_TLV_FLAGS_BF_UPDATED: new beacon filtering API
+ * @IWL_UCODE_TLV_FLAGS_STA_KEY_CMD: new ADD_STA and ADD_STA_KEY command API
  */
 enum iwl_ucode_tlv_flag {
 	IWL_UCODE_TLV_FLAGS_PAN			= BIT(0),
@@ -92,6 +93,7 @@ enum iwl_ucode_tlv_flag {
 	IWL_UCODE_TLV_FLAGS_TIME_EVENT_API_V2	= BIT(9),
 	IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS	= BIT(10),
 	IWL_UCODE_TLV_FLAGS_BF_UPDATED		= BIT(11),
+	IWL_UCODE_TLV_FLAGS_STA_KEY_CMD		= BIT(19),
 };
 
 /* The default calibrate table size if not specified by firmware file */
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-sta.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-sta.h
index a30691a8a85b..4aca5933a65d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-sta.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-sta.h
@@ -247,7 +247,7 @@ struct iwl_mvm_keyinfo {
 } __packed;
 
 /**
- * struct iwl_mvm_add_sta_cmd - Add / modify a station in the fw's station table
+ * struct iwl_mvm_add_sta_cmd_v5 - Add/modify a station in the fw's sta table.
  * ( REPLY_ADD_STA = 0x18 )
  * @add_modify: 1: modify existing, 0: add new station
  * @unicast_tx_key_id: unicast tx key id. Relevant only when unicast key sent
@@ -286,7 +286,7 @@ struct iwl_mvm_keyinfo {
  * ADD_STA sets up the table entry for one station, either creating a new
  * entry, or modifying a pre-existing one.
  */
-struct iwl_mvm_add_sta_cmd {
+struct iwl_mvm_add_sta_cmd_v5 {
 	u8 add_modify;
 	u8 unicast_tx_key_id;
 	u8 multicast_tx_key_id;
@@ -312,6 +312,57 @@ struct iwl_mvm_add_sta_cmd {
 	__le32 tfd_queue_msk;
 } __packed; /* ADD_STA_CMD_API_S_VER_5 */
 
+/**
+ * struct iwl_mvm_add_sta_cmd_v6 - Add / modify a station
+ * VER_6 of this command is quite similar to VER_5 except
+ * exclusion of all fields related to the security key installation.
+ */
+struct iwl_mvm_add_sta_cmd_v6 {
+	u8 add_modify;
+	u8 reserved1;
+	__le16 tid_disable_tx;
+	__le32 mac_id_n_color;
+	u8 addr[ETH_ALEN];	/* _STA_ID_MODIFY_INFO_API_S_VER_1 */
+	__le16 reserved2;
+	u8 sta_id;
+	u8 modify_mask;
+	__le16 reserved3;
+	__le32 station_flags;
+	__le32 station_flags_msk;
+	u8 add_immediate_ba_tid;
+	u8 remove_immediate_ba_tid;
+	__le16 add_immediate_ba_ssn;
+	__le16 sleep_tx_count;
+	__le16 sleep_state_flags;
+	__le16 assoc_id;
+	__le16 beamform_flags;
+	__le32 tfd_queue_msk;
+} __packed; /* ADD_STA_CMD_API_S_VER_6 */
+
+/**
+ * struct iwl_mvm_add_sta_key_cmd - add/modify sta key
+ * ( REPLY_ADD_STA_KEY = 0x17 )
+ * @sta_id: index of station in uCode's station table
+ * @key_offset: key offset in key storage
+ * @key_flags: type %iwl_sta_key_flag
+ * @key: key material data
+ * @key2: key material data
+ * @rx_secur_seq_cnt: RX security sequence counter for the key
+ * @tkip_rx_tsc_byte2: TSC[2] for key mix ph1 detection
+ * @tkip_rx_ttak: 10-byte unicast TKIP TTAK for Rx
+ */
+struct iwl_mvm_add_sta_key_cmd {
+	u8 sta_id;
+	u8 key_offset;
+	__le16 key_flags;
+	u8 key[16];
+	u8 key2[16];
+	u8 rx_secur_seq_cnt[16];
+	u8 tkip_rx_tsc_byte2;
+	u8 reserved;
+	__le16 tkip_rx_ttak[5];
+} __packed; /* ADD_MODIFY_STA_KEY_API_S_VER_1 */
+
 /**
  * enum iwl_mvm_add_sta_rsp_status - status in the response to ADD_STA command
  * @ADD_STA_SUCCESS: operation was executed successfully
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
index 7dfa31affaee..3c833acad686 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
@@ -97,6 +97,7 @@ enum {
 	DBG_CFG = 0x9,
 
 	/* station table */
+	ADD_STA_KEY = 0x17,
 	ADD_STA = 0x18,
 	REMOVE_STA = 0x19,
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index 950e809621e7..8cd5f32cfba3 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -261,6 +261,7 @@ static const char *iwl_mvm_cmd_strings[REPLY_MAX] = {
 	CMD(CALIB_RES_NOTIF_PHY_DB),
 	CMD(SET_CALIB_DEFAULT_CMD),
 	CMD(CALIBRATION_COMPLETE_NOTIFICATION),
+	CMD(ADD_STA_KEY),
 	CMD(ADD_STA),
 	CMD(REMOVE_STA),
 	CMD(LQ_CMD),
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c
index 44add291531b..fa900c75c509 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.c
@@ -66,6 +66,115 @@
 #include "sta.h"
 #include "rs.h"
 
+static void iwl_mvm_add_sta_cmd_v6_to_v5(struct iwl_mvm_add_sta_cmd_v6 *cmd_v6,
+					 struct iwl_mvm_add_sta_cmd_v5 *cmd_v5)
+{
+	memset(cmd_v5, 0, sizeof(*cmd_v5));
+
+	cmd_v5->add_modify = cmd_v6->add_modify;
+	cmd_v5->tid_disable_tx = cmd_v6->tid_disable_tx;
+	cmd_v5->mac_id_n_color = cmd_v6->mac_id_n_color;
+	memcpy(cmd_v5->addr, cmd_v6->addr, ETH_ALEN);
+	cmd_v5->sta_id = cmd_v6->sta_id;
+	cmd_v5->modify_mask = cmd_v6->modify_mask;
+	cmd_v5->station_flags = cmd_v6->station_flags;
+	cmd_v5->station_flags_msk = cmd_v6->station_flags_msk;
+	cmd_v5->add_immediate_ba_tid = cmd_v6->add_immediate_ba_tid;
+	cmd_v5->remove_immediate_ba_tid = cmd_v6->remove_immediate_ba_tid;
+	cmd_v5->add_immediate_ba_ssn = cmd_v6->add_immediate_ba_ssn;
+	cmd_v5->sleep_tx_count = cmd_v6->sleep_tx_count;
+	cmd_v5->sleep_state_flags = cmd_v6->sleep_state_flags;
+	cmd_v5->assoc_id = cmd_v6->assoc_id;
+	cmd_v5->beamform_flags = cmd_v6->beamform_flags;
+	cmd_v5->tfd_queue_msk = cmd_v6->tfd_queue_msk;
+}
+
+static void
+iwl_mvm_add_sta_key_to_add_sta_cmd_v5(struct iwl_mvm_add_sta_key_cmd *key_cmd,
+				      struct iwl_mvm_add_sta_cmd_v5 *sta_cmd,
+				      u32 mac_id_n_color)
+{
+	memset(sta_cmd, 0, sizeof(*sta_cmd));
+
+	sta_cmd->sta_id = key_cmd->sta_id;
+	sta_cmd->add_modify = STA_MODE_MODIFY;
+	sta_cmd->modify_mask = STA_MODIFY_KEY;
+	sta_cmd->mac_id_n_color = cpu_to_le32(mac_id_n_color);
+
+	sta_cmd->key.key_offset = key_cmd->key_offset;
+	sta_cmd->key.key_flags = key_cmd->key_flags;
+	memcpy(sta_cmd->key.key, key_cmd->key, sizeof(sta_cmd->key.key));
+	sta_cmd->key.tkip_rx_tsc_byte2 = key_cmd->tkip_rx_tsc_byte2;
+	memcpy(sta_cmd->key.tkip_rx_ttak, key_cmd->tkip_rx_ttak,
+	       sizeof(sta_cmd->key.tkip_rx_ttak));
+}
+
+static int iwl_mvm_send_add_sta_cmd_status(struct iwl_mvm *mvm,
+					   struct iwl_mvm_add_sta_cmd_v6 *cmd,
+					   int *status)
+{
+	struct iwl_mvm_add_sta_cmd_v5 cmd_v5;
+
+	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_STA_KEY_CMD)
+		return iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, sizeof(*cmd),
+						   cmd, status);
+
+	iwl_mvm_add_sta_cmd_v6_to_v5(cmd, &cmd_v5);
+
+	return iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, sizeof(cmd_v5),
+					   &cmd_v5, status);
+}
+
+static int iwl_mvm_send_add_sta_cmd(struct iwl_mvm *mvm, u32 flags,
+				    struct iwl_mvm_add_sta_cmd_v6 *cmd)
+{
+	struct iwl_mvm_add_sta_cmd_v5 cmd_v5;
+
+	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_STA_KEY_CMD)
+		return iwl_mvm_send_cmd_pdu(mvm, ADD_STA, flags,
+					    sizeof(*cmd), cmd);
+
+	iwl_mvm_add_sta_cmd_v6_to_v5(cmd, &cmd_v5);
+
+	return iwl_mvm_send_cmd_pdu(mvm, ADD_STA, flags, sizeof(cmd_v5),
+				    &cmd_v5);
+}
+
+static int
+iwl_mvm_send_add_sta_key_cmd_status(struct iwl_mvm *mvm,
+				    struct iwl_mvm_add_sta_key_cmd *cmd,
+				    u32 mac_id_n_color,
+				    int *status)
+{
+	struct iwl_mvm_add_sta_cmd_v5 sta_cmd;
+
+	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_STA_KEY_CMD)
+		return iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA_KEY,
+						   sizeof(*cmd), cmd, status);
+
+	iwl_mvm_add_sta_key_to_add_sta_cmd_v5(cmd, &sta_cmd, mac_id_n_color);
+
+	return iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, sizeof(sta_cmd),
+					   &sta_cmd, status);
+}
+
+static int iwl_mvm_send_add_sta_key_cmd(struct iwl_mvm *mvm,
+					u32 flags,
+					struct iwl_mvm_add_sta_key_cmd *cmd,
+					u32 mac_id_n_color)
+{
+	struct iwl_mvm_add_sta_cmd_v5 sta_cmd;
+
+	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_STA_KEY_CMD)
+		return iwl_mvm_send_cmd_pdu(mvm, ADD_STA_KEY, flags,
+					    sizeof(*cmd), cmd);
+
+	iwl_mvm_add_sta_key_to_add_sta_cmd_v5(cmd, &sta_cmd, mac_id_n_color);
+
+	return iwl_mvm_send_cmd_pdu(mvm, ADD_STA, flags, sizeof(sta_cmd),
+				    &sta_cmd);
+}
+
 static int iwl_mvm_find_free_sta_id(struct iwl_mvm *mvm)
 {
 	int sta_id;
@@ -87,7 +196,7 @@ int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 			   bool update)
 {
 	struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
-	struct iwl_mvm_add_sta_cmd add_sta_cmd;
+	struct iwl_mvm_add_sta_cmd_v6 add_sta_cmd;
 	int ret;
 	u32 status;
 	u32 agg_size = 0, mpdu_dens = 0;
@@ -175,8 +284,7 @@ int iwl_mvm_sta_send_to_fw(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 		cpu_to_le32(mpdu_dens << STA_FLG_AGG_MPDU_DENS_SHIFT);
 
 	status = ADD_STA_SUCCESS;
-	ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, sizeof(add_sta_cmd),
-					  &add_sta_cmd, &status);
+	ret = iwl_mvm_send_add_sta_cmd_status(mvm, &add_sta_cmd, &status);
 	if (ret)
 		return ret;
 
@@ -256,7 +364,7 @@ int iwl_mvm_update_sta(struct iwl_mvm *mvm,
 int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta,
 		      bool drain)
 {
-	struct iwl_mvm_add_sta_cmd cmd = {};
+	struct iwl_mvm_add_sta_cmd_v6 cmd = {};
 	int ret;
 	u32 status;
 
@@ -269,8 +377,7 @@ int iwl_mvm_drain_sta(struct iwl_mvm *mvm, struct iwl_mvm_sta *mvmsta,
 	cmd.station_flags_msk = cpu_to_le32(STA_FLG_DRAIN_FLOW);
 
 	status = ADD_STA_SUCCESS;
-	ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, sizeof(cmd),
-					  &cmd, &status);
+	ret = iwl_mvm_send_add_sta_cmd_status(mvm, &cmd, &status);
 	if (ret)
 		return ret;
 
@@ -469,13 +576,13 @@ static int iwl_mvm_add_int_sta_common(struct iwl_mvm *mvm,
 				      const u8 *addr,
 				      u16 mac_id, u16 color)
 {
-	struct iwl_mvm_add_sta_cmd cmd;
+	struct iwl_mvm_add_sta_cmd_v6 cmd;
 	int ret;
 	u32 status;
 
 	lockdep_assert_held(&mvm->mutex);
 
-	memset(&cmd, 0, sizeof(struct iwl_mvm_add_sta_cmd));
+	memset(&cmd, 0, sizeof(struct iwl_mvm_add_sta_cmd_v6));
 	cmd.sta_id = sta->sta_id;
 	cmd.mac_id_n_color = cpu_to_le32(FW_CMD_ID_AND_COLOR(mac_id,
 							     color));
@@ -485,8 +592,7 @@ static int iwl_mvm_add_int_sta_common(struct iwl_mvm *mvm,
 	if (addr)
 		memcpy(cmd.addr, addr, ETH_ALEN);
 
-	ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, sizeof(cmd),
-					  &cmd, &status);
+	ret = iwl_mvm_send_add_sta_cmd_status(mvm, &cmd, &status);
 	if (ret)
 		return ret;
 
@@ -614,7 +720,7 @@ int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 		       int tid, u16 ssn, bool start)
 {
 	struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
-	struct iwl_mvm_add_sta_cmd cmd = {};
+	struct iwl_mvm_add_sta_cmd_v6 cmd = {};
 	int ret;
 	u32 status;
 
@@ -638,8 +744,7 @@ int iwl_mvm_sta_rx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 				  STA_MODIFY_REMOVE_BA_TID;
 
 	status = ADD_STA_SUCCESS;
-	ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, sizeof(cmd),
-					  &cmd, &status);
+	ret = iwl_mvm_send_add_sta_cmd_status(mvm, &cmd, &status);
 	if (ret)
 		return ret;
 
@@ -674,7 +779,7 @@ static int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 			      int tid, u8 queue, bool start)
 {
 	struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
-	struct iwl_mvm_add_sta_cmd cmd = {};
+	struct iwl_mvm_add_sta_cmd_v6 cmd = {};
 	int ret;
 	u32 status;
 
@@ -696,8 +801,7 @@ static int iwl_mvm_sta_tx_agg(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 	cmd.tid_disable_tx = cpu_to_le16(mvm_sta->tid_disable_agg);
 
 	status = ADD_STA_SUCCESS;
-	ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, sizeof(cmd),
-					  &cmd, &status);
+	ret = iwl_mvm_send_add_sta_cmd_status(mvm, &cmd, &status);
 	if (ret)
 		return ret;
 
@@ -987,10 +1091,11 @@ static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm,
 				u32 cmd_flags)
 {
 	__le16 key_flags;
-	struct iwl_mvm_add_sta_cmd cmd = {};
+	struct iwl_mvm_add_sta_key_cmd cmd = {};
 	int ret, status;
 	u16 keyidx;
 	int i;
+	u32 mac_id_n_color = mvm_sta->mac_id_n_color;
 
 	keyidx = (keyconf->keyidx << STA_KEY_FLG_KEYID_POS) &
 		 STA_KEY_FLG_KEYID_MSK;
@@ -1000,14 +1105,14 @@ static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm,
 	switch (keyconf->cipher) {
 	case WLAN_CIPHER_SUITE_TKIP:
 		key_flags |= cpu_to_le16(STA_KEY_FLG_TKIP);
-		cmd.key.tkip_rx_tsc_byte2 = tkip_iv32;
+		cmd.tkip_rx_tsc_byte2 = tkip_iv32;
 		for (i = 0; i < 5; i++)
-			cmd.key.tkip_rx_ttak[i] = cpu_to_le16(tkip_p1k[i]);
-		memcpy(cmd.key.key, keyconf->key, keyconf->keylen);
+			cmd.tkip_rx_ttak[i] = cpu_to_le16(tkip_p1k[i]);
+		memcpy(cmd.key, keyconf->key, keyconf->keylen);
 		break;
 	case WLAN_CIPHER_SUITE_CCMP:
 		key_flags |= cpu_to_le16(STA_KEY_FLG_CCM);
-		memcpy(cmd.key.key, keyconf->key, keyconf->keylen);
+		memcpy(cmd.key, keyconf->key, keyconf->keylen);
 		break;
 	default:
 		WARN_ON(1);
@@ -1017,20 +1122,18 @@ static int iwl_mvm_send_sta_key(struct iwl_mvm *mvm,
 	if (!(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE))
 		key_flags |= cpu_to_le16(STA_KEY_MULTICAST);
 
-	cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color);
-	cmd.key.key_offset = keyconf->hw_key_idx;
-	cmd.key.key_flags = key_flags;
-	cmd.add_modify = STA_MODE_MODIFY;
-	cmd.modify_mask = STA_MODIFY_KEY;
+	cmd.key_offset = keyconf->hw_key_idx;
+	cmd.key_flags = key_flags;
 	cmd.sta_id = sta_id;
 
 	status = ADD_STA_SUCCESS;
 	if (cmd_flags == CMD_SYNC)
-		ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, sizeof(cmd),
-						  &cmd, &status);
+		ret = iwl_mvm_send_add_sta_key_cmd_status(mvm, &cmd,
+							  mac_id_n_color,
+							  &status);
 	else
-		ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC,
-					   sizeof(cmd), &cmd);
+		ret = iwl_mvm_send_add_sta_key_cmd(mvm, CMD_ASYNC, &cmd,
+						   mac_id_n_color);
 
 	switch (status) {
 	case ADD_STA_SUCCESS:
@@ -1197,7 +1300,7 @@ int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm,
 			   struct ieee80211_key_conf *keyconf)
 {
 	struct iwl_mvm_sta *mvm_sta;
-	struct iwl_mvm_add_sta_cmd cmd = {};
+	struct iwl_mvm_add_sta_key_cmd cmd = {};
 	__le16 key_flags;
 	int ret, status;
 	u8 sta_id;
@@ -1252,17 +1355,14 @@ int iwl_mvm_remove_sta_key(struct iwl_mvm *mvm,
 	if (!(keyconf->flags & IEEE80211_KEY_FLAG_PAIRWISE))
 		key_flags |= cpu_to_le16(STA_KEY_MULTICAST);
 
-	cmd.mac_id_n_color = cpu_to_le32(mvm_sta->mac_id_n_color);
-	cmd.key.key_flags = key_flags;
-	cmd.key.key_offset = keyconf->hw_key_idx;
+	cmd.key_flags = key_flags;
+	cmd.key_offset = keyconf->hw_key_idx;
 	cmd.sta_id = sta_id;
 
-	cmd.modify_mask = STA_MODIFY_KEY;
-	cmd.add_modify = STA_MODE_MODIFY;
-
 	status = ADD_STA_SUCCESS;
-	ret = iwl_mvm_send_cmd_pdu_status(mvm, ADD_STA, sizeof(cmd),
-					  &cmd, &status);
+	ret = iwl_mvm_send_add_sta_key_cmd_status(mvm, &cmd,
+						  mvm_sta->mac_id_n_color,
+						  &status);
 
 	switch (status) {
 	case ADD_STA_SUCCESS:
@@ -1309,7 +1409,7 @@ void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm,
 				struct ieee80211_sta *sta)
 {
 	struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv;
-	struct iwl_mvm_add_sta_cmd cmd = {
+	struct iwl_mvm_add_sta_cmd_v6 cmd = {
 		.add_modify = STA_MODE_MODIFY,
 		.sta_id = mvmsta->sta_id,
 		.station_flags_msk = cpu_to_le32(STA_FLG_PS),
@@ -1317,7 +1417,7 @@ void iwl_mvm_sta_modify_ps_wake(struct iwl_mvm *mvm,
 	};
 	int ret;
 
-	ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, sizeof(cmd), &cmd);
+	ret = iwl_mvm_send_add_sta_cmd(mvm, CMD_ASYNC, &cmd);
 	if (ret)
 		IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret);
 }
@@ -1331,7 +1431,7 @@ void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm,
 		(reason == IEEE80211_FRAME_RELEASE_UAPSD) ?
 			STA_SLEEP_STATE_UAPSD : STA_SLEEP_STATE_PS_POLL;
 	struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv;
-	struct iwl_mvm_add_sta_cmd cmd = {
+	struct iwl_mvm_add_sta_cmd_v6 cmd = {
 		.add_modify = STA_MODE_MODIFY,
 		.sta_id = mvmsta->sta_id,
 		.modify_mask = STA_MODIFY_SLEEPING_STA_TX_COUNT,
@@ -1346,7 +1446,7 @@ void iwl_mvm_sta_modify_sleep_tx_count(struct iwl_mvm *mvm,
 	int ret;
 
 	/* TODO: somehow the fw doesn't seem to take PS_POLL into account */
-	ret = iwl_mvm_send_cmd_pdu(mvm, ADD_STA, CMD_ASYNC, sizeof(cmd), &cmd);
+	ret = iwl_mvm_send_add_sta_cmd(mvm, CMD_ASYNC, &cmd);
 	if (ret)
 		IWL_ERR(mvm, "Failed to send ADD_STA command (%d)\n", ret);
 }
-- 
cgit 


From 889b169650c5b2cfeac8bcf34137af84a85b1cb8 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Thu, 25 Jul 2013 13:14:34 +0300
Subject: iwlwifi: pcie: clean RFKILL interrupt in AMPG

Newer firmware don't clean the RFKILL interrupt in APMG, do
it in driver instead.
If we forget to do so, we can't send HCMD to firmware while
the NIC is in RFKILL state.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-prph.h   | 2 ++
 drivers/net/wireless/iwlwifi/pcie/trans.c | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h
index ff8cc75c189d..a70c7b9d9bad 100644
--- a/drivers/net/wireless/iwlwifi/iwl-prph.h
+++ b/drivers/net/wireless/iwlwifi/iwl-prph.h
@@ -97,6 +97,8 @@
 
 #define APMG_PCIDEV_STT_VAL_L1_ACT_DIS		(0x00000800)
 
+#define APMG_RTC_INT_STT_RFKILL		(0x10000000)
+
 /* Device system time */
 #define DEVICE_SYSTEM_TIME_REG 0xA0206C
 
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index bad95d28d50d..e66c7e378a3e 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -220,6 +220,9 @@ static int iwl_pcie_apm_init(struct iwl_trans *trans)
 	iwl_set_bits_prph(trans, APMG_PCIDEV_STT_REG,
 			  APMG_PCIDEV_STT_VAL_L1_ACT_DIS);
 
+	/* Clear the interrupt in APMG if the NIC is in RFKILL */
+	iwl_write_prph(trans, APMG_RTC_INT_STT_REG, APMG_RTC_INT_STT_RFKILL);
+
 	set_bit(STATUS_DEVICE_ENABLED, &trans_pcie->status);
 
 out:
-- 
cgit 


From 22f6642c52e9e02732f620f9cde952cbfa87dfc8 Mon Sep 17 00:00:00 2001
From: Eyal Shapira <eyal@wizery.com>
Date: Sun, 28 Jul 2013 23:02:47 +0000
Subject: iwlwifi: mvm: fix switch from shared antenna in case of BT load

Current code didn't handle well the case where we're in SISO using
ANT B and there's a BT load. Switch to ANT A in this case.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/rs.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 3cfcea547458..ffcc63539c3a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -1324,17 +1324,18 @@ static int rs_move_siso_to_other(struct iwl_mvm *mvm,
 		/* nothing */
 		break;
 	case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
-		/* avoid antenna B unless MIMO */
-		if (tbl->action == IWL_SISO_SWITCH_ANTENNA)
+		/* avoid switching to antenna B but allow MIMO */
+		if (tbl->action == IWL_SISO_SWITCH_ANTENNA &&
+		    tbl->ant_type == ANT_A)
 			tbl->action = IWL_SISO_SWITCH_MIMO2;
 		break;
 	case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
 	case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
-		/* avoid antenna B and MIMO */
-		valid_tx_ant =
-			first_antenna(iwl_fw_valid_tx_ant(mvm->fw));
-		if (tbl->action != IWL_SISO_SWITCH_ANTENNA)
-			tbl->action = IWL_SISO_SWITCH_ANTENNA;
+		/* A - avoid antenna B and MIMO. B - switch to A */
+		if (tbl->ant_type == ANT_A)
+			valid_tx_ant =
+				first_antenna(iwl_fw_valid_tx_ant(mvm->fw));
+		tbl->action = IWL_SISO_SWITCH_ANTENNA;
 		break;
 	default:
 		IWL_ERR(mvm, "Invalid BT load %d",
-- 
cgit 


From 4e82dd3a132cd71a7164d01095562aa564e0d739 Mon Sep 17 00:00:00 2001
From: Eyal Shapira <eyal@wizery.com>
Date: Sun, 4 Aug 2013 23:58:37 +0300
Subject: iwlwifi: mvm: update expected tpt tables for VHT

VHT introduces MCS8 and MCS9. Update the expected tpt tables
to include these. Previous expected values for 20/40 MHz
are incorrect in certain cases so fix these as well.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Tested-by: Efi Tubul <efi.tubul@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h | 17 ++++++++--
 drivers/net/wireless/iwlwifi/mvm/rs.c        | 51 +++++++++++++++-------------
 2 files changed, 42 insertions(+), 26 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h
index fdd33bc0a594..ada130524ef8 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h
@@ -78,18 +78,31 @@ enum {
 	IWL_LAST_CCK_RATE = IWL_RATE_11M_INDEX,
 	IWL_RATE_6M_INDEX,
 	IWL_FIRST_OFDM_RATE = IWL_RATE_6M_INDEX,
+	IWL_RATE_MCS_0_INDEX = IWL_RATE_6M_INDEX,
+	IWL_FIRST_HT_RATE = IWL_RATE_MCS_0_INDEX,
+	IWL_FIRST_VHT_RATE = IWL_RATE_MCS_0_INDEX,
 	IWL_RATE_9M_INDEX,
 	IWL_RATE_12M_INDEX,
+	IWL_RATE_MCS_1_INDEX = IWL_RATE_12M_INDEX,
 	IWL_RATE_18M_INDEX,
+	IWL_RATE_MCS_2_INDEX = IWL_RATE_18M_INDEX,
 	IWL_RATE_24M_INDEX,
+	IWL_RATE_MCS_3_INDEX = IWL_RATE_24M_INDEX,
 	IWL_RATE_36M_INDEX,
+	IWL_RATE_MCS_4_INDEX = IWL_RATE_36M_INDEX,
 	IWL_RATE_48M_INDEX,
+	IWL_RATE_MCS_5_INDEX = IWL_RATE_48M_INDEX,
 	IWL_RATE_54M_INDEX,
+	IWL_RATE_MCS_6_INDEX = IWL_RATE_54M_INDEX,
 	IWL_LAST_NON_HT_RATE = IWL_RATE_54M_INDEX,
 	IWL_RATE_60M_INDEX,
-	IWL_LAST_OFDM_RATE = IWL_RATE_60M_INDEX,
+	IWL_RATE_MCS_7_INDEX = IWL_RATE_60M_INDEX,
+	IWL_LAST_HT_RATE = IWL_RATE_MCS_7_INDEX,
+	IWL_RATE_MCS_8_INDEX,
+	IWL_RATE_MCS_9_INDEX,
+	IWL_LAST_VHT_RATE = IWL_RATE_MCS_9_INDEX,
 	IWL_RATE_COUNT_LEGACY = IWL_LAST_NON_HT_RATE + 1,
-	IWL_RATE_COUNT,
+	IWL_RATE_COUNT = IWL_LAST_VHT_RATE + 1,
 };
 
 #define IWL_RATE_BIT_MSK(r) BIT(IWL_RATE_##r##M_INDEX)
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index ffcc63539c3a..6880ef3d064d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -136,7 +136,7 @@ static int iwl_hwrate_to_plcp_idx(u32 rate_n_flags)
 		/* skip 9M not supported in ht*/
 		if (idx >= IWL_RATE_9M_INDEX)
 			idx += 1;
-		if ((idx >= IWL_FIRST_OFDM_RATE) && (idx <= IWL_LAST_OFDM_RATE))
+		if ((idx >= IWL_FIRST_HT_RATE) && (idx <= IWL_LAST_HT_RATE))
 			return idx;
 
 	/* legacy rate format, search for match in table */
@@ -180,35 +180,38 @@ static void rs_dbgfs_set_mcs(struct iwl_lq_sta *lq_sta,
  */
 
 static s32 expected_tpt_legacy[IWL_RATE_COUNT] = {
-	7, 13, 35, 58, 40, 57, 72, 98, 121, 154, 177, 186, 0
+	7, 13, 35, 58, 40, 57, 72, 98, 121, 154, 177, 186, 0, 0, 0
 };
 
-static s32 expected_tpt_siso20MHz[4][IWL_RATE_COUNT] = {
-	{0, 0, 0, 0, 42, 0,  76, 102, 124, 159, 183, 193, 202}, /* Norm */
-	{0, 0, 0, 0, 46, 0,  82, 110, 132, 168, 192, 202, 210}, /* SGI */
-	{0, 0, 0, 0, 47, 0,  91, 133, 171, 242, 305, 334, 362}, /* AGG */
-	{0, 0, 0, 0, 52, 0, 101, 145, 187, 264, 330, 361, 390}, /* AGG+SGI */
+/* Expected TpT tables. 4 indexes:
+ * 0 - NGI, 1 - SGI, 2 - AGG+NGI, 3 - AGG+SGI
+ */
+static s32 expected_tpt_siso_20MHz[4][IWL_RATE_COUNT] = {
+	{0, 0, 0, 0, 42, 0,  76, 102, 124, 159, 183, 193, 202, 216, 0},
+	{0, 0, 0, 0, 46, 0,  82, 110, 132, 168, 192, 202, 210, 225, 0},
+	{0, 0, 0, 0, 49, 0,  97, 145, 192, 285, 375, 420, 464, 551, 0},
+	{0, 0, 0, 0, 54, 0, 108, 160, 213, 315, 415, 465, 513, 608, 0},
 };
 
-static s32 expected_tpt_siso40MHz[4][IWL_RATE_COUNT] = {
-	{0, 0, 0, 0,  77, 0, 127, 160, 184, 220, 242, 250, 257}, /* Norm */
-	{0, 0, 0, 0,  83, 0, 135, 169, 193, 229, 250, 257, 264}, /* SGI */
-	{0, 0, 0, 0,  94, 0, 177, 249, 313, 423, 512, 550, 586}, /* AGG */
-	{0, 0, 0, 0, 104, 0, 193, 270, 338, 454, 545, 584, 620}, /* AGG+SGI */
+static s32 expected_tpt_siso_40MHz[4][IWL_RATE_COUNT] = {
+	{0, 0, 0, 0,  77, 0, 127, 160, 184, 220, 242, 250,  257,  269,  275},
+	{0, 0, 0, 0,  83, 0, 135, 169, 193, 229, 250, 257,  264,  275,  280},
+	{0, 0, 0, 0, 101, 0, 199, 295, 389, 570, 744, 828,  911, 1070, 1173},
+	{0, 0, 0, 0, 112, 0, 220, 326, 429, 629, 819, 912, 1000, 1173, 1284},
 };
 
 static s32 expected_tpt_mimo2_20MHz[4][IWL_RATE_COUNT] = {
-	{0, 0, 0, 0,  74, 0, 123, 155, 179, 214, 236, 244, 251}, /* Norm */
-	{0, 0, 0, 0,  81, 0, 131, 164, 188, 223, 243, 251, 257}, /* SGI */
-	{0, 0, 0, 0,  89, 0, 167, 235, 296, 402, 488, 526, 560}, /* AGG */
-	{0, 0, 0, 0,  97, 0, 182, 255, 320, 431, 520, 558, 593}, /* AGG+SGI*/
+	{0, 0, 0, 0,  74, 0, 123, 155, 179, 213, 235, 243, 250,  261, 0},
+	{0, 0, 0, 0,  81, 0, 131, 164, 187, 221, 242, 250, 256,  267, 0},
+	{0, 0, 0, 0,  98, 0, 193, 286, 375, 550, 718, 799, 878, 1032, 0},
+	{0, 0, 0, 0, 109, 0, 214, 316, 414, 607, 790, 879, 965, 1132, 0},
 };
 
 static s32 expected_tpt_mimo2_40MHz[4][IWL_RATE_COUNT] = {
-	{0, 0, 0, 0, 123, 0, 182, 214, 235, 264, 279, 285, 289}, /* Norm */
-	{0, 0, 0, 0, 131, 0, 191, 222, 242, 270, 284, 289, 293}, /* SGI */
-	{0, 0, 0, 0, 171, 0, 305, 410, 496, 634, 731, 771, 805}, /* AGG */
-	{0, 0, 0, 0, 186, 0, 329, 439, 527, 667, 764, 803, 838}, /* AGG+SGI */
+	{0, 0, 0, 0, 123, 0, 182, 214, 235,  264,  279,  285,  289,  296,  300},
+	{0, 0, 0, 0, 131, 0, 191, 222, 242,  270,  284,  289,  293,  300,  303},
+	{0, 0, 0, 0, 200, 0, 390, 571, 741, 1067, 1365, 1505, 1640, 1894, 2053},
+	{0, 0, 0, 0, 221, 0, 430, 630, 816, 1169, 1490, 1641, 1784, 2053, 2221},
 };
 
 /* mbps, mcs */
@@ -426,9 +429,9 @@ static u32 rate_n_flags_from_tbl(struct iwl_mvm *mvm,
 		if (index >= IWL_FIRST_CCK_RATE && index <= IWL_LAST_CCK_RATE)
 			rate_n_flags |= RATE_MCS_CCK_MSK;
 	} else if (is_Ht(tbl->lq_type)) {
-		if (index > IWL_LAST_OFDM_RATE) {
+		if (index > IWL_LAST_HT_RATE) {
 			IWL_ERR(mvm, "Invalid HT rate index %d\n", index);
-			index = IWL_LAST_OFDM_RATE;
+			index = IWL_LAST_HT_RATE;
 		}
 		rate_n_flags = RATE_MCS_HT_MSK;
 
@@ -962,9 +965,9 @@ static void rs_set_expected_tpt_table(struct iwl_lq_sta *lq_sta,
 	 * (SISO/MIMO2), channel width (20/40), SGI, and aggregation
 	 * status */
 	if (is_siso(tbl->lq_type) && !tbl->is_ht40)
-		ht_tbl_pointer = expected_tpt_siso20MHz;
+		ht_tbl_pointer = expected_tpt_siso_20MHz;
 	else if (is_siso(tbl->lq_type))
-		ht_tbl_pointer = expected_tpt_siso40MHz;
+		ht_tbl_pointer = expected_tpt_siso_40MHz;
 	else if (is_mimo2(tbl->lq_type) && !tbl->is_ht40)
 		ht_tbl_pointer = expected_tpt_mimo2_20MHz;
 	else {
-- 
cgit 


From 3394817f833f13958320ae6e0dccf347c1ce5200 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Wed, 21 Aug 2013 14:27:40 +0300
Subject: iwlwifi: mvm: don't sleep while allocating in atomic context

We want to dump the SRAM when we have an error interrupt
from the device. This happens in non-sleepable context,
hence the change.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/utils.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/utils.c b/drivers/net/wireless/iwlwifi/mvm/utils.c
index a9c357491434..ed69e9b78e82 100644
--- a/drivers/net/wireless/iwlwifi/mvm/utils.c
+++ b/drivers/net/wireless/iwlwifi/mvm/utils.c
@@ -466,7 +466,7 @@ void iwl_mvm_dump_sram(struct iwl_mvm *mvm)
 	ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
 	len = img->sec[IWL_UCODE_SECTION_DATA].len;
 
-	buf = kzalloc(len, GFP_KERNEL);
+	buf = kzalloc(len, GFP_ATOMIC);
 	if (!buf)
 		return;
 
-- 
cgit 


From 20f1a5deb67f00cef89d63fb957a940c7f976cf3 Mon Sep 17 00:00:00 2001
From: David Spinadel <david.spinadel@intel.com>
Date: Wed, 21 Aug 2013 09:14:27 +0300
Subject: iwlwifi: mvm: add no_basic_ssid option

New FW doesn't use the SSID from scan request template. Adding
a TLV flag to indicate the change, and fixing the flows to send
the first SSID in SSID list if the flag is on.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-fw.h       |  3 +++
 drivers/net/wireless/iwlwifi/mvm/mac80211.c | 13 +++++++++---
 drivers/net/wireless/iwlwifi/mvm/scan.c     | 32 +++++++++++++++++++----------
 3 files changed, 34 insertions(+), 14 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-fw.h b/drivers/net/wireless/iwlwifi/iwl-fw.h
index 3ddbc1bda74e..d2f0381d2abd 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw.h
@@ -80,6 +80,8 @@
  * @IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS: D3 image supports up to six
  *	(rather than two) IPv6 addresses
  * @IWL_UCODE_TLV_FLAGS_BF_UPDATED: new beacon filtering API
+ * @IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID: not sending a probe with the SSID element
+ *	from the probe request template.
  * @IWL_UCODE_TLV_FLAGS_STA_KEY_CMD: new ADD_STA and ADD_STA_KEY command API
  */
 enum iwl_ucode_tlv_flag {
@@ -93,6 +95,7 @@ enum iwl_ucode_tlv_flag {
 	IWL_UCODE_TLV_FLAGS_TIME_EVENT_API_V2	= BIT(9),
 	IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS	= BIT(10),
 	IWL_UCODE_TLV_FLAGS_BF_UPDATED		= BIT(11),
+	IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID	= BIT(12),
 	IWL_UCODE_TLV_FLAGS_STA_KEY_CMD		= BIT(19),
 };
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 141fc547dc2d..0340299b4b63 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -139,6 +139,14 @@ static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
 	}
 }
 
+static int iwl_mvm_max_scan_ie_len(struct iwl_mvm *mvm)
+{
+	/* we create the 802.11 header and SSID element */
+	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID)
+		return mvm->fw->ucode_capa.max_probe_length - 24 - 2;
+	return mvm->fw->ucode_capa.max_probe_length - 24 - 34;
+}
+
 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 {
 	struct ieee80211_hw *hw = mvm->hw;
@@ -213,9 +221,8 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 
 	iwl_mvm_reset_phy_ctxts(mvm);
 
-	/* we create the 802.11 header and a max-length SSID element */
-	hw->wiphy->max_scan_ie_len =
-		mvm->fw->ucode_capa.max_probe_length - 24 - 34;
+	hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
+
 	hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
 
 	if (mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels)
diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index 71170fcc8f14..0dc626f34927 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -137,11 +137,12 @@ iwl_mvm_scan_rate_n_flags(struct iwl_mvm *mvm, enum ieee80211_band band,
  * request.
  */
 static void iwl_mvm_scan_fill_ssids(struct iwl_scan_cmd *cmd,
-				    struct cfg80211_scan_request *req)
+				    struct cfg80211_scan_request *req,
+				    int first)
 {
 	int fw_idx, req_idx;
 
-	for (req_idx = req->n_ssids - 1, fw_idx = 0; req_idx > 0;
+	for (req_idx = req->n_ssids - 1, fw_idx = 0; req_idx >= first;
 	     req_idx--, fw_idx++) {
 		cmd->direct_scan[fw_idx].id = WLAN_EID_SSID;
 		cmd->direct_scan[fw_idx].len = req->ssids[req_idx].ssid_len;
@@ -157,9 +158,9 @@ static void iwl_mvm_scan_fill_ssids(struct iwl_scan_cmd *cmd,
  * just to notify that this scan is active and not passive.
  * In order to notify the FW of the number of SSIDs we wish to scan (including
  * the zero-length one), we need to set the corresponding bits in chan->type,
- * one for each SSID, and set the active bit (first). The first SSID is already
- * included in the probe template, so we need to set only req->n_ssids - 1 bits
- * in addition to the first bit.
+ * one for each SSID, and set the active bit (first). If the first SSID is
+ * already included in the probe template, so we need to set only
+ * req->n_ssids - 1 bits in addition to the first bit.
  */
 static u16 iwl_mvm_get_active_dwell(enum ieee80211_band band, int n_ssids)
 {
@@ -174,7 +175,8 @@ static u16 iwl_mvm_get_passive_dwell(enum ieee80211_band band)
 }
 
 static void iwl_mvm_scan_fill_channels(struct iwl_scan_cmd *cmd,
-				       struct cfg80211_scan_request *req)
+				       struct cfg80211_scan_request *req,
+				       bool basic_ssid)
 {
 	u16 passive_dwell = iwl_mvm_get_passive_dwell(req->channels[0]->band);
 	u16 active_dwell = iwl_mvm_get_active_dwell(req->channels[0]->band,
@@ -182,10 +184,14 @@ static void iwl_mvm_scan_fill_channels(struct iwl_scan_cmd *cmd,
 	struct iwl_scan_channel *chan = (struct iwl_scan_channel *)
 		(cmd->data + le16_to_cpu(cmd->tx_cmd.len));
 	int i;
+	int type = BIT(req->n_ssids) - 1;
+
+	if (!basic_ssid)
+		type |= BIT(req->n_ssids);
 
 	for (i = 0; i < cmd->channel_count; i++) {
 		chan->channel = cpu_to_le16(req->channels[i]->hw_value);
-		chan->type = cpu_to_le32(BIT(req->n_ssids) - 1);
+		chan->type = cpu_to_le32(type);
 		if (req->channels[i]->flags & IEEE80211_CHAN_PASSIVE_SCAN)
 			chan->type &= cpu_to_le32(~SCAN_CHANNEL_TYPE_ACTIVE);
 		chan->active_dwell = cpu_to_le16(active_dwell);
@@ -272,6 +278,8 @@ int iwl_mvm_scan_request(struct iwl_mvm *mvm,
 	u32 status;
 	int ssid_len = 0;
 	u8 *ssid = NULL;
+	bool basic_ssid = !(mvm->fw->ucode_capa.flags &
+			   IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID);
 
 	lockdep_assert_held(&mvm->mutex);
 	BUG_ON(mvm->scan_cmd == NULL);
@@ -306,14 +314,16 @@ int iwl_mvm_scan_request(struct iwl_mvm *mvm,
 	if (req->n_ssids > 0) {
 		cmd->passive2active = cpu_to_le16(1);
 		cmd->scan_flags |= SCAN_FLAGS_PASSIVE2ACTIVE;
-		ssid = req->ssids[0].ssid;
-		ssid_len = req->ssids[0].ssid_len;
+		if (basic_ssid) {
+			ssid = req->ssids[0].ssid;
+			ssid_len = req->ssids[0].ssid_len;
+		}
 	} else {
 		cmd->passive2active = 0;
 		cmd->scan_flags &= ~SCAN_FLAGS_PASSIVE2ACTIVE;
 	}
 
-	iwl_mvm_scan_fill_ssids(cmd, req);
+	iwl_mvm_scan_fill_ssids(cmd, req, basic_ssid ? 1 : 0);
 
 	cmd->tx_cmd.tx_flags = cpu_to_le32(TX_CMD_FLG_SEQ_CTL);
 	cmd->tx_cmd.sta_id = mvm->aux_sta.sta_id;
@@ -330,7 +340,7 @@ int iwl_mvm_scan_request(struct iwl_mvm *mvm,
 			    req->ie, req->ie_len,
 			    mvm->fw->ucode_capa.max_probe_length));
 
-	iwl_mvm_scan_fill_channels(cmd, req);
+	iwl_mvm_scan_fill_channels(cmd, req, basic_ssid);
 
 	cmd->len = cpu_to_le16(sizeof(struct iwl_scan_cmd) +
 		le16_to_cpu(cmd->tx_cmd.len) +
-- 
cgit 


From 35a000b7c1bbd81631097539567f24a272a2fa0f Mon Sep 17 00:00:00 2001
From: David Spinadel <david.spinadel@intel.com>
Date: Wed, 28 Aug 2013 09:29:43 +0300
Subject: iwlwifi: mvm: support sched scan if supported by the fw

Add support for scheduled scan according to firmware support.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-fw.h          |   5 +
 drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h |  34 +-
 drivers/net/wireless/iwlwifi/mvm/fw-api.h      |   1 +
 drivers/net/wireless/iwlwifi/mvm/mac80211.c    |  58 ++++
 drivers/net/wireless/iwlwifi/mvm/mvm.h         |  18 ++
 drivers/net/wireless/iwlwifi/mvm/ops.c         |   8 +
 drivers/net/wireless/iwlwifi/mvm/scan.c        | 418 +++++++++++++++++++++++++
 7 files changed, 538 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-fw.h b/drivers/net/wireless/iwlwifi/iwl-fw.h
index d2f0381d2abd..0d609ce0a7c6 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw.h
@@ -75,6 +75,8 @@
  * @IWL_UCODE_TLV_FLAGS_P2P: This uCode image supports P2P.
  * @IWL_UCODE_TLV_FLAGS_DW_BC_TABLE: The SCD byte count table is in DWORDS
  * @IWL_UCODE_TLV_FLAGS_UAPSD: This uCode image supports uAPSD
+ * @IWL_UCODE_TLV_FLAGS_SHORT_BL: 16 entries of black list instead of 64 in scan
+ *	offload profile config command.
  * @IWL_UCODE_TLV_FLAGS_RX_ENERGY_API: supports rx signal strength api
  * @IWL_UCODE_TLV_FLAGS_TIME_EVENT_API_V2: using the new time event API.
  * @IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS: D3 image supports up to six
@@ -82,6 +84,7 @@
  * @IWL_UCODE_TLV_FLAGS_BF_UPDATED: new beacon filtering API
  * @IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID: not sending a probe with the SSID element
  *	from the probe request template.
+ * @IWL_UCODE_TLV_FLAGS_SCHED_SCAN: this uCode image supports scheduled scan.
  * @IWL_UCODE_TLV_FLAGS_STA_KEY_CMD: new ADD_STA and ADD_STA_KEY command API
  */
 enum iwl_ucode_tlv_flag {
@@ -91,11 +94,13 @@ enum iwl_ucode_tlv_flag {
 	IWL_UCODE_TLV_FLAGS_P2P			= BIT(3),
 	IWL_UCODE_TLV_FLAGS_DW_BC_TABLE		= BIT(4),
 	IWL_UCODE_TLV_FLAGS_UAPSD		= BIT(6),
+	IWL_UCODE_TLV_FLAGS_SHORT_BL		= BIT(7),
 	IWL_UCODE_TLV_FLAGS_RX_ENERGY_API	= BIT(8),
 	IWL_UCODE_TLV_FLAGS_TIME_EVENT_API_V2	= BIT(9),
 	IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS	= BIT(10),
 	IWL_UCODE_TLV_FLAGS_BF_UPDATED		= BIT(11),
 	IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID	= BIT(12),
+	IWL_UCODE_TLV_FLAGS_SCHED_SCAN		= BIT(17),
 	IWL_UCODE_TLV_FLAGS_STA_KEY_CMD		= BIT(19),
 };
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h
index 83cb9b992ea4..c3782b48ded1 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-scan.h
@@ -356,6 +356,7 @@ struct iwl_scan_complete_notif {
 /* scan offload */
 #define IWL_MAX_SCAN_CHANNELS		40
 #define IWL_SCAN_MAX_BLACKLIST_LEN	64
+#define IWL_SCAN_SHORT_BLACKLIST_LEN	16
 #define IWL_SCAN_MAX_PROFILES		11
 #define SCAN_OFFLOAD_PROBE_REQ_SIZE	512
 
@@ -368,6 +369,12 @@ struct iwl_scan_complete_notif {
 #define IWL_FULL_SCAN_MULTIPLIER 5
 #define IWL_FAST_SCHED_SCAN_ITERATIONS 3
 
+enum scan_framework_client {
+	SCAN_CLIENT_SCHED_SCAN		= BIT(0),
+	SCAN_CLIENT_NETDETECT		= BIT(1),
+	SCAN_CLIENT_ASSET_TRACKING	= BIT(2),
+};
+
 /**
  * struct iwl_scan_offload_cmd - SCAN_REQUEST_FIXED_PART_API_S_VER_6
  * @scan_flags:		see enum iwl_scan_flags
@@ -449,11 +456,12 @@ struct iwl_scan_offload_cfg {
  * iwl_scan_offload_blacklist - SCAN_OFFLOAD_BLACKLIST_S
  * @ssid:		MAC address to filter out
  * @reported_rssi:	AP rssi reported to the host
+ * @client_bitmap: clients ignore this entry  - enum scan_framework_client
  */
 struct iwl_scan_offload_blacklist {
 	u8 ssid[ETH_ALEN];
 	u8 reported_rssi;
-	u8 reserved;
+	u8 client_bitmap;
 } __packed;
 
 enum iwl_scan_offload_network_type {
@@ -475,6 +483,7 @@ enum iwl_scan_offload_band_selection {
  * @aut_alg:		authentication olgorithm to match - bitmap
  * @network_type:	enum iwl_scan_offload_network_type
  * @band_selection:	enum iwl_scan_offload_band_selection
+ * @client_bitmap:	clients waiting for match - enum scan_framework_client
  */
 struct iwl_scan_offload_profile {
 	u8 ssid_index;
@@ -482,7 +491,8 @@ struct iwl_scan_offload_profile {
 	u8 auth_alg;
 	u8 network_type;
 	u8 band_selection;
-	u8 reserved[3];
+	u8 client_bitmap;
+	u8 reserved[2];
 } __packed;
 
 /**
@@ -491,13 +501,18 @@ struct iwl_scan_offload_profile {
  * @profiles:		profiles to search for match
  * @blacklist_len:	length of blacklist
  * @num_profiles:	num of profiles in the list
+ * @match_notify:	clients waiting for match found notification
+ * @pass_match:		clients waiting for the results
+ * @active_clients:	active clients bitmap - enum scan_framework_client
  */
 struct iwl_scan_offload_profile_cfg {
-	struct iwl_scan_offload_blacklist blacklist[IWL_SCAN_MAX_BLACKLIST_LEN];
 	struct iwl_scan_offload_profile profiles[IWL_SCAN_MAX_PROFILES];
 	u8 blacklist_len;
 	u8 num_profiles;
-	u8 reserved[2];
+	u8 match_notify;
+	u8 pass_match;
+	u8 active_clients;
+	u8 reserved[3];
 } __packed;
 
 /**
@@ -560,4 +575,15 @@ struct iwl_scan_offload_complete {
 	u8 reserved;
 } __packed;
 
+/**
+ * iwl_sched_scan_results - SCAN_OFFLOAD_MATCH_FOUND_NTF_API_S_VER_1
+ * @ssid_bitmap:	SSIDs indexes found in this iteration
+ * @client_bitmap:	clients that are active and wait for this notification
+ */
+struct iwl_sched_scan_results {
+	__le16 ssid_bitmap;
+	u8 client_bitmap;
+	u8 reserved;
+};
+
 #endif
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
index 3c833acad686..c28af8ac3d5f 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
@@ -132,6 +132,7 @@ enum {
 	SCAN_OFFLOAD_COMPLETE = 0x6D,
 	SCAN_OFFLOAD_UPDATE_PROFILES_CMD = 0x6E,
 	SCAN_OFFLOAD_CONFIG_CMD = 0x6f,
+	MATCH_FOUND_NOTIFICATION = 0xd9,
 
 	/* Phy */
 	PHY_CONFIGURATION_CMD = 0x6a,
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 0340299b4b63..8c619151c467 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -239,6 +239,15 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 	else
 		hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
 
+	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_SCHED_SCAN) {
+		hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_SCHED_SCAN;
+		hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
+		hw->wiphy->max_match_sets = IWL_SCAN_MAX_PROFILES;
+		/* we create the 802.11 header and zero length SSID IE. */
+		hw->wiphy->max_sched_scan_ie_len =
+					SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
+	}
+
 	hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
 			       NL80211_FEATURE_P2P_GO_OPPPS;
 
@@ -1202,6 +1211,53 @@ static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
 	mutex_unlock(&mvm->mutex);
 }
 
+static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
+					struct ieee80211_vif *vif,
+					struct cfg80211_sched_scan_request *req,
+					struct ieee80211_sched_scan_ies *ies)
+{
+	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
+	int ret;
+
+	mutex_lock(&mvm->mutex);
+
+	if (mvm->scan_status != IWL_MVM_SCAN_NONE) {
+		IWL_DEBUG_SCAN(mvm,
+			       "SCHED SCAN request during internal scan - abort\n");
+		ret = -EBUSY;
+		goto out;
+	}
+
+	mvm->scan_status = IWL_MVM_SCAN_SCHED;
+
+	ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies);
+	if (ret)
+		goto err;
+
+	ret = iwl_mvm_config_sched_scan_profiles(mvm, req);
+	if (ret)
+		goto err;
+
+	ret = iwl_mvm_sched_scan_start(mvm, req);
+	if (!ret)
+		goto out;
+err:
+	mvm->scan_status = IWL_MVM_SCAN_NONE;
+out:
+	mutex_unlock(&mvm->mutex);
+	return ret;
+}
+
+static void iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
+					struct ieee80211_vif *vif)
+{
+	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
+
+	mutex_lock(&mvm->mutex);
+	iwl_mvm_sched_scan_stop(mvm);
+	mutex_unlock(&mvm->mutex);
+}
+
 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
 			       enum set_key_cmd cmd,
 			       struct ieee80211_vif *vif,
@@ -1671,6 +1727,8 @@ struct ieee80211_ops iwl_mvm_hw_ops = {
 	.set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
 	.conf_tx = iwl_mvm_mac_conf_tx,
 	.mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
+	.sched_scan_start = iwl_mvm_mac_sched_scan_start,
+	.sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
 	.set_key = iwl_mvm_mac_set_key,
 	.update_tkip_key = iwl_mvm_mac_update_tkip_key,
 	.remain_on_channel = iwl_mvm_roc,
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index d7b0aeea380c..a56c1b8f5493 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -339,6 +339,7 @@ iwl_mvm_vif_from_mac80211(struct ieee80211_vif *vif)
 enum iwl_scan_status {
 	IWL_MVM_SCAN_NONE,
 	IWL_MVM_SCAN_OS,
+	IWL_MVM_SCAN_SCHED,
 };
 
 /**
@@ -696,6 +697,23 @@ int iwl_mvm_rx_scan_complete(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 			     struct iwl_device_cmd *cmd);
 void iwl_mvm_cancel_scan(struct iwl_mvm *mvm);
 
+/* Scheduled scan */
+int iwl_mvm_rx_scan_offload_complete_notif(struct iwl_mvm *mvm,
+					   struct iwl_rx_cmd_buffer *rxb,
+					   struct iwl_device_cmd *cmd);
+int iwl_mvm_config_sched_scan(struct iwl_mvm *mvm,
+			      struct ieee80211_vif *vif,
+			      struct cfg80211_sched_scan_request *req,
+			      struct ieee80211_sched_scan_ies *ies);
+int iwl_mvm_config_sched_scan_profiles(struct iwl_mvm *mvm,
+				       struct cfg80211_sched_scan_request *req);
+int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm,
+			     struct cfg80211_sched_scan_request *req);
+void iwl_mvm_sched_scan_stop(struct iwl_mvm *mvm);
+int iwl_mvm_rx_sched_scan_results(struct iwl_mvm *mvm,
+				  struct iwl_rx_cmd_buffer *rxb,
+				  struct iwl_device_cmd *cmd);
+
 /* MVM debugfs */
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir);
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index 8cd5f32cfba3..a9ed45708bc2 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -224,6 +224,10 @@ static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
 
 	RX_HANDLER(SCAN_REQUEST_CMD, iwl_mvm_rx_scan_response, false),
 	RX_HANDLER(SCAN_COMPLETE_NOTIFICATION, iwl_mvm_rx_scan_complete, false),
+	RX_HANDLER(SCAN_OFFLOAD_COMPLETE,
+		   iwl_mvm_rx_scan_offload_complete_notif, false),
+	RX_HANDLER(MATCH_FOUND_NOTIFICATION, iwl_mvm_rx_sched_scan_results,
+		   false),
 
 	RX_HANDLER(RADIO_VERSION_NOTIFICATION, iwl_mvm_rx_radio_ver, false),
 	RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif, false),
@@ -266,6 +270,7 @@ static const char *iwl_mvm_cmd_strings[REPLY_MAX] = {
 	CMD(REMOVE_STA),
 	CMD(LQ_CMD),
 	CMD(SCAN_OFFLOAD_CONFIG_CMD),
+	CMD(MATCH_FOUND_NOTIFICATION),
 	CMD(SCAN_OFFLOAD_REQUEST_CMD),
 	CMD(SCAN_OFFLOAD_ABORT_CMD),
 	CMD(SCAN_OFFLOAD_COMPLETE),
@@ -717,6 +722,9 @@ static void iwl_mvm_nic_restart(struct iwl_mvm *mvm)
 		case IWL_MVM_SCAN_OS:
 			ieee80211_scan_completed(mvm->hw, true);
 			break;
+		case IWL_MVM_SCAN_SCHED:
+			ieee80211_sched_scan_stopped(mvm->hw);
+			break;
 		}
 
 		if (mvm->restart_fw > 0)
diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index 0dc626f34927..778dcd9320fe 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -391,6 +391,21 @@ int iwl_mvm_rx_scan_complete(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 	return 0;
 }
 
+int iwl_mvm_rx_sched_scan_results(struct iwl_mvm *mvm,
+				  struct iwl_rx_cmd_buffer *rxb,
+				  struct iwl_device_cmd *cmd)
+{
+	struct iwl_rx_packet *pkt = rxb_addr(rxb);
+	struct iwl_sched_scan_results *notif = (void *)pkt->data;
+
+	if (notif->client_bitmap & SCAN_CLIENT_SCHED_SCAN) {
+		IWL_DEBUG_SCAN(mvm, "Scheduled scan results\n");
+		ieee80211_sched_scan_results(mvm->hw);
+	}
+
+	return 0;
+}
+
 static bool iwl_mvm_scan_abort_notif(struct iwl_notif_wait_data *notif_wait,
 				     struct iwl_rx_packet *pkt, void *data)
 {
@@ -451,3 +466,406 @@ void iwl_mvm_cancel_scan(struct iwl_mvm *mvm)
 out_remove_notif:
 	iwl_remove_notification(&mvm->notif_wait, &wait_scan_abort);
 }
+
+int iwl_mvm_rx_scan_offload_complete_notif(struct iwl_mvm *mvm,
+					   struct iwl_rx_cmd_buffer *rxb,
+					   struct iwl_device_cmd *cmd)
+{
+	struct iwl_rx_packet *pkt = rxb_addr(rxb);
+	struct iwl_scan_offload_complete *scan_notif = (void *)pkt->data;
+
+	IWL_DEBUG_SCAN(mvm, "Scheduled scan completed, status %s\n",
+		       scan_notif->status == IWL_SCAN_OFFLOAD_COMPLETED ?
+		       "completed" : "aborted");
+
+	mvm->scan_status = IWL_MVM_SCAN_NONE;
+	ieee80211_sched_scan_stopped(mvm->hw);
+
+	return 0;
+}
+
+static void iwl_scan_offload_build_tx_cmd(struct iwl_mvm *mvm,
+					  struct ieee80211_vif *vif,
+					  struct ieee80211_sched_scan_ies *ies,
+					  enum ieee80211_band band,
+					  struct iwl_tx_cmd *cmd,
+					  u8 *data)
+{
+	u16 cmd_len;
+
+	cmd->tx_flags = cpu_to_le32(TX_CMD_FLG_SEQ_CTL);
+	cmd->life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE);
+	cmd->sta_id = mvm->aux_sta.sta_id;
+
+	cmd->rate_n_flags = iwl_mvm_scan_rate_n_flags(mvm, band, false);
+
+	cmd_len = iwl_mvm_fill_probe_req((struct ieee80211_mgmt *)data,
+					 vif->addr,
+					 1, NULL, 0,
+					 ies->ie[band], ies->len[band],
+					 SCAN_OFFLOAD_PROBE_REQ_SIZE);
+	cmd->len = cpu_to_le16(cmd_len);
+}
+
+static void iwl_build_scan_cmd(struct iwl_mvm *mvm,
+			       struct ieee80211_vif *vif,
+			       struct cfg80211_sched_scan_request *req,
+			       struct iwl_scan_offload_cmd *scan)
+{
+	scan->channel_count =
+		mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels +
+		mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels;
+	scan->quiet_time = cpu_to_le16(IWL_ACTIVE_QUIET_TIME);
+	scan->quiet_plcp_th = cpu_to_le16(IWL_PLCP_QUIET_THRESH);
+	scan->good_CRC_th = IWL_GOOD_CRC_TH_DEFAULT;
+	scan->rx_chain = iwl_mvm_scan_rx_chain(mvm);
+	scan->max_out_time = cpu_to_le32(200 * 1024);
+	scan->suspend_time = iwl_mvm_scan_suspend_time(vif);
+	scan->filter_flags |= cpu_to_le32(MAC_FILTER_ACCEPT_GRP |
+					  MAC_FILTER_IN_BEACON);
+	scan->scan_type = cpu_to_le32(SCAN_TYPE_BACKGROUND);
+	scan->rep_count = cpu_to_le32(1);
+}
+
+static int iwl_ssid_exist(u8 *ssid, u8 ssid_len, struct iwl_ssid_ie *ssid_list)
+{
+	int i;
+
+	for (i = 0; i < PROBE_OPTION_MAX; i++) {
+		if (!ssid_list[i].len)
+			break;
+		if (ssid_list[i].len == ssid_len &&
+		    !memcmp(ssid_list->ssid, ssid, ssid_len))
+			return i;
+	}
+	return -1;
+}
+
+static void iwl_scan_offload_build_ssid(struct cfg80211_sched_scan_request *req,
+					struct iwl_scan_offload_cmd *scan,
+					u32 *ssid_bitmap)
+{
+	int i, j;
+	int index;
+
+	/*
+	 * copy SSIDs from match list.
+	 * iwl_config_sched_scan_profiles() uses the order of these ssids to
+	 * config match list.
+	 */
+	for (i = 0; i < req->n_match_sets && i < PROBE_OPTION_MAX; i++) {
+		scan->direct_scan[i].id = WLAN_EID_SSID;
+		scan->direct_scan[i].len = req->match_sets[i].ssid.ssid_len;
+		memcpy(scan->direct_scan[i].ssid, req->match_sets[i].ssid.ssid,
+		       scan->direct_scan[i].len);
+	}
+
+	/* add SSIDs from scan SSID list */
+	*ssid_bitmap = 0;
+	for (j = 0; j < req->n_ssids && i < PROBE_OPTION_MAX; j++) {
+		index = iwl_ssid_exist(req->ssids[j].ssid,
+				       req->ssids[j].ssid_len,
+				       scan->direct_scan);
+		if (index < 0) {
+			if (!req->ssids[j].ssid_len)
+				continue;
+			scan->direct_scan[i].id = WLAN_EID_SSID;
+			scan->direct_scan[i].len = req->ssids[j].ssid_len;
+			memcpy(scan->direct_scan[i].ssid, req->ssids[j].ssid,
+			       scan->direct_scan[i].len);
+			*ssid_bitmap |= BIT(i + 1);
+			i++;
+		} else {
+			*ssid_bitmap |= BIT(index + 1);
+		}
+	}
+}
+
+static void iwl_build_channel_cfg(struct iwl_mvm *mvm,
+				  struct cfg80211_sched_scan_request *req,
+				  struct iwl_scan_channel_cfg *channels,
+				  enum ieee80211_band band,
+				  int *head, int *tail,
+				  u32 ssid_bitmap)
+{
+	struct ieee80211_supported_band *s_band;
+	int n_probes = req->n_ssids;
+	int n_channels = req->n_channels;
+	u8 active_dwell, passive_dwell;
+	int i, j, index = 0;
+	bool partial;
+
+	/*
+	 * We have to configure all supported channels, even if we don't want to
+	 * scan on them, but we have to send channels in the order that we want
+	 * to scan. So add requested channels to head of the list and others to
+	 * the end.
+	*/
+	active_dwell = iwl_mvm_get_active_dwell(band, n_probes);
+	passive_dwell = iwl_mvm_get_passive_dwell(band);
+	s_band = &mvm->nvm_data->bands[band];
+
+	for (i = 0; i < s_band->n_channels && *head <= *tail; i++) {
+		partial = false;
+		for (j = 0; j < n_channels; j++)
+			if (s_band->channels[i].center_freq ==
+						req->channels[j]->center_freq) {
+				index = *head;
+				(*head)++;
+				/*
+				 * Channels that came with the request will be
+				 * in partial scan .
+				 */
+				partial = true;
+				break;
+			}
+		if (!partial) {
+			index = *tail;
+			(*tail)--;
+		}
+		channels->channel_number[index] =
+			cpu_to_le16(ieee80211_frequency_to_channel(
+					s_band->channels[i].center_freq));
+		channels->dwell_time[index][0] = active_dwell;
+		channels->dwell_time[index][1] = passive_dwell;
+
+		channels->iter_count[index] = cpu_to_le16(1);
+		channels->iter_interval[index] = 0;
+
+		if (!(s_band->channels[i].flags & IEEE80211_CHAN_PASSIVE_SCAN))
+			channels->type[index] |=
+				cpu_to_le32(IWL_SCAN_OFFLOAD_CHANNEL_ACTIVE);
+
+		channels->type[index] |=
+				cpu_to_le32(IWL_SCAN_OFFLOAD_CHANNEL_FULL);
+		if (partial)
+			channels->type[index] |=
+				cpu_to_le32(IWL_SCAN_OFFLOAD_CHANNEL_PARTIAL);
+
+		if (s_band->channels[i].flags & IEEE80211_CHAN_NO_HT40)
+			channels->type[index] |=
+				cpu_to_le32(IWL_SCAN_OFFLOAD_CHANNEL_NARROW);
+
+		/* scan for all SSIDs from req->ssids */
+		channels->type[index] |= cpu_to_le32(ssid_bitmap);
+	}
+}
+
+int iwl_mvm_config_sched_scan(struct iwl_mvm *mvm,
+			      struct ieee80211_vif *vif,
+			      struct cfg80211_sched_scan_request *req,
+			      struct ieee80211_sched_scan_ies *ies)
+{
+	int supported_bands = 0;
+	int band_2ghz = mvm->nvm_data->bands[IEEE80211_BAND_2GHZ].n_channels;
+	int band_5ghz = mvm->nvm_data->bands[IEEE80211_BAND_5GHZ].n_channels;
+	int head = 0;
+	int tail = band_2ghz + band_5ghz;
+	u32 ssid_bitmap;
+	int cmd_len;
+	int ret;
+
+	struct iwl_scan_offload_cfg *scan_cfg;
+	struct iwl_host_cmd cmd = {
+		.id = SCAN_OFFLOAD_CONFIG_CMD,
+		.flags = CMD_SYNC,
+	};
+
+	lockdep_assert_held(&mvm->mutex);
+
+	if (band_2ghz)
+		supported_bands++;
+	if (band_5ghz)
+		supported_bands++;
+
+	cmd_len = sizeof(struct iwl_scan_offload_cfg) +
+				supported_bands * SCAN_OFFLOAD_PROBE_REQ_SIZE;
+
+	scan_cfg = kzalloc(cmd_len, GFP_KERNEL);
+	if (!scan_cfg)
+		return -ENOMEM;
+
+	iwl_build_scan_cmd(mvm, vif, req, &scan_cfg->scan_cmd);
+	scan_cfg->scan_cmd.len = cpu_to_le16(cmd_len);
+
+	iwl_scan_offload_build_ssid(req, &scan_cfg->scan_cmd, &ssid_bitmap);
+	/* build tx frames for supported bands */
+	if (band_2ghz) {
+		iwl_scan_offload_build_tx_cmd(mvm, vif, ies,
+					      IEEE80211_BAND_2GHZ,
+					      &scan_cfg->scan_cmd.tx_cmd[0],
+					      scan_cfg->data);
+		iwl_build_channel_cfg(mvm, req, &scan_cfg->channel_cfg,
+				      IEEE80211_BAND_2GHZ, &head, &tail,
+				      ssid_bitmap);
+	}
+	if (band_5ghz) {
+		iwl_scan_offload_build_tx_cmd(mvm, vif, ies,
+					      IEEE80211_BAND_5GHZ,
+					      &scan_cfg->scan_cmd.tx_cmd[1],
+					      scan_cfg->data +
+						SCAN_OFFLOAD_PROBE_REQ_SIZE);
+		iwl_build_channel_cfg(mvm, req, &scan_cfg->channel_cfg,
+				      IEEE80211_BAND_5GHZ, &head, &tail,
+				      ssid_bitmap);
+	}
+
+	cmd.data[0] = scan_cfg;
+	cmd.len[0] = cmd_len;
+	cmd.dataflags[0] = IWL_HCMD_DFL_NOCOPY;
+
+	IWL_DEBUG_SCAN(mvm, "Sending scheduled scan config\n");
+
+	ret = iwl_mvm_send_cmd(mvm, &cmd);
+	kfree(scan_cfg);
+	return ret;
+}
+
+int iwl_mvm_config_sched_scan_profiles(struct iwl_mvm *mvm,
+				       struct cfg80211_sched_scan_request *req)
+{
+	struct iwl_scan_offload_profile *profile;
+	struct iwl_scan_offload_profile_cfg *profile_cfg;
+	struct iwl_scan_offload_blacklist *blacklist;
+	struct iwl_host_cmd cmd = {
+		.id = SCAN_OFFLOAD_UPDATE_PROFILES_CMD,
+		.flags = CMD_SYNC,
+		.len[1] = sizeof(*profile_cfg),
+		.dataflags[0] = IWL_HCMD_DFL_NOCOPY,
+		.dataflags[1] = IWL_HCMD_DFL_NOCOPY,
+	};
+	int blacklist_len;
+	int i;
+	int ret;
+
+	if (WARN_ON(req->n_match_sets > IWL_SCAN_MAX_PROFILES))
+			return -EIO;
+
+	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_SHORT_BL)
+		blacklist_len = IWL_SCAN_SHORT_BLACKLIST_LEN;
+	else
+		blacklist_len = IWL_SCAN_MAX_BLACKLIST_LEN;
+
+	blacklist = kzalloc(sizeof(*blacklist) * blacklist_len, GFP_KERNEL);
+	if (!blacklist)
+		return -ENOMEM;
+
+	profile_cfg = kzalloc(sizeof(*profile_cfg), GFP_KERNEL);
+	if (!profile_cfg) {
+		ret = -ENOMEM;
+		goto free_blacklist;
+	}
+
+	cmd.data[0] = blacklist;
+	cmd.len[0] = sizeof(*blacklist) * blacklist_len;
+	cmd.data[1] = profile_cfg;
+
+	/* No blacklist configuration */
+
+	profile_cfg->num_profiles = req->n_match_sets;
+	profile_cfg->active_clients = SCAN_CLIENT_SCHED_SCAN;
+	profile_cfg->pass_match = SCAN_CLIENT_SCHED_SCAN;
+	profile_cfg->match_notify = SCAN_CLIENT_SCHED_SCAN;
+
+	for (i = 0; i < req->n_match_sets; i++) {
+		profile = &profile_cfg->profiles[i];
+		profile->ssid_index = i;
+		/* Support any cipher and auth algorithm */
+		profile->unicast_cipher = 0xff;
+		profile->auth_alg = 0xff;
+		profile->network_type = IWL_NETWORK_TYPE_ANY;
+		profile->band_selection = IWL_SCAN_OFFLOAD_SELECT_ANY;
+		profile->client_bitmap = SCAN_CLIENT_SCHED_SCAN;
+	}
+
+	IWL_DEBUG_SCAN(mvm, "Sending scheduled scan profile config\n");
+
+	ret = iwl_mvm_send_cmd(mvm, &cmd);
+	kfree(profile_cfg);
+free_blacklist:
+	kfree(blacklist);
+
+	return ret;
+}
+
+int iwl_mvm_sched_scan_start(struct iwl_mvm *mvm,
+			     struct cfg80211_sched_scan_request *req)
+{
+	struct iwl_scan_offload_req scan_req = {
+		.watchdog = IWL_SCHED_SCAN_WATCHDOG,
+
+		.schedule_line[0].iterations = IWL_FAST_SCHED_SCAN_ITERATIONS,
+		.schedule_line[0].delay = req->interval / 1000,
+		.schedule_line[0].full_scan_mul = 1,
+
+		.schedule_line[1].iterations = 0xff,
+		.schedule_line[1].delay = req->interval / 1000,
+		.schedule_line[1].full_scan_mul = IWL_FULL_SCAN_MULTIPLIER,
+	};
+
+	if (req->n_match_sets && req->match_sets[0].ssid.ssid_len) {
+		IWL_DEBUG_SCAN(mvm,
+			       "Sending scheduled scan with filtering, filter len %d\n",
+			       req->n_match_sets);
+		scan_req.flags |=
+				cpu_to_le16(IWL_SCAN_OFFLOAD_FLAG_FILTER_SSID);
+	} else {
+		IWL_DEBUG_SCAN(mvm,
+			       "Sending Scheduled scan without filtering\n");
+	}
+
+	return iwl_mvm_send_cmd_pdu(mvm, SCAN_OFFLOAD_REQUEST_CMD, CMD_SYNC,
+				    sizeof(scan_req), &scan_req);
+}
+
+static int iwl_mvm_send_sched_scan_abort(struct iwl_mvm *mvm)
+{
+	int ret;
+	struct iwl_host_cmd cmd = {
+		.id = SCAN_OFFLOAD_ABORT_CMD,
+		.flags = CMD_SYNC,
+	};
+	u32 status;
+
+	/* Exit instantly with error when device is not ready
+	 * to receive scan abort command or it does not perform
+	 * scheduled scan currently */
+	if (mvm->scan_status != IWL_MVM_SCAN_SCHED)
+		return -EIO;
+
+	ret = iwl_mvm_send_cmd_status(mvm, &cmd, &status);
+	if (ret)
+		return ret;
+
+	if (status != CAN_ABORT_STATUS) {
+		/*
+		 * The scan abort will return 1 for success or
+		 * 2 for "failure".  A failure condition can be
+		 * due to simply not being in an active scan which
+		 * can occur if we send the scan abort before the
+		 * microcode has notified us that a scan is completed.
+		 */
+		IWL_DEBUG_SCAN(mvm, "SCAN OFFLOAD ABORT ret %d.\n", status);
+		ret = -EIO;
+	}
+
+	return ret;
+}
+
+void iwl_mvm_sched_scan_stop(struct iwl_mvm *mvm)
+{
+	int ret;
+
+	lockdep_assert_held(&mvm->mutex);
+
+	if (mvm->scan_status != IWL_MVM_SCAN_SCHED) {
+		IWL_DEBUG_SCAN(mvm, "No offloaded scan to stop\n");
+		return;
+	}
+
+	ret = iwl_mvm_send_sched_scan_abort(mvm);
+	if (ret)
+		IWL_DEBUG_SCAN(mvm, "Send stop offload scan failed %d\n", ret);
+	else
+		IWL_DEBUG_SCAN(mvm, "Successfully sent stop offload scan\n");
+}
-- 
cgit 


From dac94da8dba3855aa97a376bed223c342981e236 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 18 Jun 2013 07:35:27 +0300
Subject: iwlwifi: mvm: new BT Coex API

This is the new API for BT Coex. The full functionality
will be implemented in further patches.

Note: this disables BT Coex for the currently existing
fw (-7 version).

There is also a new command - the channel inhibition command.

This command tells BT what channels to avoid in order to
minimise the interaction between BT and WiFi.
We can tell BT about 2 channels, primary and secondary.
BT will not tune to primary at all and will avoid secondary
as much as possible.

This also means that we need to track vifs that AP / GO.
So rename iwl_mvm_bt_coex_vif_assoc to
iwl_mvm_bt_coex_vif_change to better reflect its real
meaning.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-fw.h             |   1 +
 drivers/net/wireless/iwlwifi/mvm/bt-coex.c        | 393 ++++++++++++++++------
 drivers/net/wireless/iwlwifi/mvm/fw-api-bt-coex.h | 129 ++++---
 drivers/net/wireless/iwlwifi/mvm/fw-api.h         |   1 +
 drivers/net/wireless/iwlwifi/mvm/mac80211.c       |   6 +-
 drivers/net/wireless/iwlwifi/mvm/mvm.h            |   3 +-
 drivers/net/wireless/iwlwifi/mvm/ops.c            |   1 +
 7 files changed, 388 insertions(+), 146 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-fw.h b/drivers/net/wireless/iwlwifi/iwl-fw.h
index 0d609ce0a7c6..8c2473e212d3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw.h
@@ -93,6 +93,7 @@ enum iwl_ucode_tlv_flag {
 	IWL_UCODE_TLV_FLAGS_MFP			= BIT(2),
 	IWL_UCODE_TLV_FLAGS_P2P			= BIT(3),
 	IWL_UCODE_TLV_FLAGS_DW_BC_TABLE		= BIT(4),
+	IWL_UCODE_TLV_FLAGS_NEWBT_COEX		= BIT(5),
 	IWL_UCODE_TLV_FLAGS_UAPSD		= BIT(6),
 	IWL_UCODE_TLV_FLAGS_SHORT_BL		= BIT(7),
 	IWL_UCODE_TLV_FLAGS_RX_ENERGY_API	= BIT(8),
diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index ef59f8412bd1..55d1a6c469ee 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -98,22 +98,23 @@ static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
 
 #undef EVENT_PRIO_ANT
 
-/* BT Antenna Coupling Threshold (dB) */
-#define IWL_BT_ANTENNA_COUPLING_THRESHOLD	(35)
 #define IWL_BT_LOAD_FORCE_SISO_THRESHOLD	(3)
 
 #define BT_ENABLE_REDUCED_TXPOWER_THRESHOLD	(-62)
 #define BT_DISABLE_REDUCED_TXPOWER_THRESHOLD	(-65)
-#define BT_REDUCED_TX_POWER_BIT			BIT(7)
+#define BT_ANTENNA_COUPLING_THRESHOLD		(30)
 
 static inline bool is_loose_coex(void)
 {
 	return iwlwifi_mod_params.ant_coupling >
-		IWL_BT_ANTENNA_COUPLING_THRESHOLD;
+		BT_ANTENNA_COUPLING_THRESHOLD;
 }
 
 int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm)
 {
+	if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX))
+		return 0;
+
 	return iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PRIO_TABLE, CMD_SYNC,
 				    sizeof(struct iwl_bt_coex_prio_tbl_cmd),
 				    &iwl_bt_prio_tbl);
@@ -152,70 +153,140 @@ static const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = {
 	[BT_KILL_MSK_REDUCED_TXPOW] = 0,
 };
 
-#define IWL_BT_DEFAULT_BOOST (0xf0f0f0f0)
-
-/* Tight Coex */
-static const __le32 iwl_tight_lookup[BT_COEX_LUT_SIZE] = {
-	cpu_to_le32(0xaaaaaaaa),
-	cpu_to_le32(0xaaaaaaaa),
-	cpu_to_le32(0xaeaaaaaa),
-	cpu_to_le32(0xaaaaaaaa),
-	cpu_to_le32(0xcc00ff28),
-	cpu_to_le32(0x0000aaaa),
-	cpu_to_le32(0xcc00aaaa),
-	cpu_to_le32(0x0000aaaa),
-	cpu_to_le32(0xc0004000),
-	cpu_to_le32(0x00000000),
-	cpu_to_le32(0xf0005000),
-	cpu_to_le32(0xf0005000),
+static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = {
+	cpu_to_le32(0xf0f0f0f0),
+	cpu_to_le32(0xc0c0c0c0),
+	cpu_to_le32(0xfcfcfcfc),
+	cpu_to_le32(0xff00ff00),
 };
 
-/* Loose Coex */
-static const __le32 iwl_loose_lookup[BT_COEX_LUT_SIZE] = {
-	cpu_to_le32(0xaaaaaaaa),
-	cpu_to_le32(0xaaaaaaaa),
-	cpu_to_le32(0xaaaaaaaa),
-	cpu_to_le32(0xaaaaaaaa),
-	cpu_to_le32(0xcc00ff28),
-	cpu_to_le32(0x0000aaaa),
-	cpu_to_le32(0xcc00aaaa),
-	cpu_to_le32(0x0000aaaa),
-	cpu_to_le32(0x00000000),
-	cpu_to_le32(0x00000000),
-	cpu_to_le32(0xf0005000),
-	cpu_to_le32(0xf0005000),
+static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
+	{
+		/* Tight */
+		cpu_to_le32(0xaaaaaaaa),
+		cpu_to_le32(0xaaaaaaaa),
+		cpu_to_le32(0xaeaaaaaa),
+		cpu_to_le32(0xaaaaaaaa),
+		cpu_to_le32(0xcc00ff28),
+		cpu_to_le32(0x0000aaaa),
+		cpu_to_le32(0xcc00aaaa),
+		cpu_to_le32(0x0000aaaa),
+		cpu_to_le32(0xc0004000),
+		cpu_to_le32(0x00000000),
+		cpu_to_le32(0xf0005000),
+		cpu_to_le32(0xf0005000),
+	},
+	{
+		/* Loose */
+		cpu_to_le32(0xaaaaaaaa),
+		cpu_to_le32(0xaaaaaaaa),
+		cpu_to_le32(0xaaaaaaaa),
+		cpu_to_le32(0xaaaaaaaa),
+		cpu_to_le32(0xcc00ff28),
+		cpu_to_le32(0x0000aaaa),
+		cpu_to_le32(0xcc00aaaa),
+		cpu_to_le32(0x0000aaaa),
+		cpu_to_le32(0x00000000),
+		cpu_to_le32(0x00000000),
+		cpu_to_le32(0xf0005000),
+		cpu_to_le32(0xf0005000),
+	},
+	{
+		/* Tx Tx disabled */
+		cpu_to_le32(0xaaaaaaaa),
+		cpu_to_le32(0xaaaaaaaa),
+		cpu_to_le32(0xaaaaaaaa),
+		cpu_to_le32(0xaaaaaaaa),
+		cpu_to_le32(0xcc00ff28),
+		cpu_to_le32(0x0000aaaa),
+		cpu_to_le32(0xcc00aaaa),
+		cpu_to_le32(0x0000aaaa),
+		cpu_to_le32(0xC0004000),
+		cpu_to_le32(0xC0004000),
+		cpu_to_le32(0xF0005000),
+		cpu_to_le32(0xF0005000),
+	},
 };
 
-/* Full concurrency */
-static const __le32 iwl_concurrent_lookup[BT_COEX_LUT_SIZE] = {
-	cpu_to_le32(0xaaaaaaaa),
-	cpu_to_le32(0xaaaaaaaa),
-	cpu_to_le32(0xaaaaaaaa),
-	cpu_to_le32(0xaaaaaaaa),
-	cpu_to_le32(0xaaaaaaaa),
-	cpu_to_le32(0xaaaaaaaa),
-	cpu_to_le32(0xaaaaaaaa),
-	cpu_to_le32(0xaaaaaaaa),
-	cpu_to_le32(0x00000000),
-	cpu_to_le32(0x00000000),
-	cpu_to_le32(0x00000000),
-	cpu_to_le32(0x00000000),
+/* 20MHz / 40MHz below / 40Mhz above*/
+static const __le64 iwl_ci_mask[][3] = {
+	/* dummy entry for channel 0 */
+	{cpu_to_le64(0), cpu_to_le64(0), cpu_to_le64(0)},
+	{
+		cpu_to_le64(0x0000001FFFULL),
+		cpu_to_le64(0x0ULL),
+		cpu_to_le64(0x00007FFFFFULL),
+	},
+	{
+		cpu_to_le64(0x000000FFFFULL),
+		cpu_to_le64(0x0ULL),
+		cpu_to_le64(0x0003FFFFFFULL),
+	},
+	{
+		cpu_to_le64(0x000003FFFCULL),
+		cpu_to_le64(0x0ULL),
+		cpu_to_le64(0x000FFFFFFCULL),
+	},
+	{
+		cpu_to_le64(0x00001FFFE0ULL),
+		cpu_to_le64(0x0ULL),
+		cpu_to_le64(0x007FFFFFE0ULL),
+	},
+	{
+		cpu_to_le64(0x00007FFF80ULL),
+		cpu_to_le64(0x00007FFFFFULL),
+		cpu_to_le64(0x01FFFFFF80ULL),
+	},
+	{
+		cpu_to_le64(0x0003FFFC00ULL),
+		cpu_to_le64(0x0003FFFFFFULL),
+		cpu_to_le64(0x0FFFFFFC00ULL),
+	},
+	{
+		cpu_to_le64(0x000FFFF000ULL),
+		cpu_to_le64(0x000FFFFFFCULL),
+		cpu_to_le64(0x3FFFFFF000ULL),
+	},
+	{
+		cpu_to_le64(0x007FFF8000ULL),
+		cpu_to_le64(0x007FFFFFE0ULL),
+		cpu_to_le64(0xFFFFFF8000ULL),
+	},
+	{
+		cpu_to_le64(0x01FFFE0000ULL),
+		cpu_to_le64(0x01FFFFFF80ULL),
+		cpu_to_le64(0xFFFFFE0000ULL),
+	},
+	{
+		cpu_to_le64(0x0FFFF00000ULL),
+		cpu_to_le64(0x0FFFFFFC00ULL),
+		cpu_to_le64(0x0ULL),
+	},
+	{
+		cpu_to_le64(0x3FFFC00000ULL),
+		cpu_to_le64(0x3FFFFFF000ULL),
+		cpu_to_le64(0x0)
+	},
+	{
+		cpu_to_le64(0xFFFE000000ULL),
+		cpu_to_le64(0xFFFFFF8000ULL),
+		cpu_to_le64(0x0)
+	},
+	{
+		cpu_to_le64(0xFFF8000000ULL),
+		cpu_to_le64(0xFFFFFE0000ULL),
+		cpu_to_le64(0x0)
+	},
+	{
+		cpu_to_le64(0xFE00000000ULL),
+		cpu_to_le64(0x0ULL),
+		cpu_to_le64(0x0)
+	},
 };
 
-/* single shared antenna */
-static const __le32 iwl_single_shared_ant_lookup[BT_COEX_LUT_SIZE] = {
-	cpu_to_le32(0x40000000),
-	cpu_to_le32(0x00000000),
-	cpu_to_le32(0x44000000),
-	cpu_to_le32(0x00000000),
-	cpu_to_le32(0x40000000),
-	cpu_to_le32(0x00000000),
-	cpu_to_le32(0x44000000),
-	cpu_to_le32(0x00000000),
-	cpu_to_le32(0xC0004000),
-	cpu_to_le32(0xF0005000),
-	cpu_to_le32(0xC0004000),
-	cpu_to_le32(0xF0005000),
+static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = {
+	cpu_to_le32(0x22002200),
+	cpu_to_le32(0x33113311),
 };
 
 int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
@@ -228,6 +299,10 @@ int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
 		.flags = CMD_SYNC,
 	};
 	int ret;
+	u32 flags;
+
+	if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX))
+		return 0;
 
 	/* go to CALIB state in internal BT-Coex state machine */
 	ret = iwl_send_bt_env(mvm, BT_COEX_ENV_OPEN,
@@ -246,40 +321,47 @@ int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
 	cmd.data[0] = bt_cmd;
 
 	bt_cmd->max_kill = 5;
-	bt_cmd->bt3_time_t7_value = 1;
-	bt_cmd->bt3_prio_sample_time = 2;
-	bt_cmd->bt3_timer_t2_value = 0xc;
+	bt_cmd->bt4_antenna_isolation_thr = BT_ANTENNA_COUPLING_THRESHOLD,
+	bt_cmd->bt4_antenna_isolation = iwlwifi_mod_params.ant_coupling,
+	bt_cmd->bt4_tx_tx_delta_freq_thr = 15,
+	bt_cmd->bt4_tx_rx_max_freq0 = 15,
 
-	bt_cmd->flags = iwlwifi_mod_params.bt_coex_active ?
+	flags = iwlwifi_mod_params.bt_coex_active ?
 			BT_COEX_NW : BT_COEX_DISABLE;
-	bt_cmd->flags |= BT_CH_PRIMARY_EN | BT_SYNC_2_BT_DISABLE;
+	flags |= BT_CH_PRIMARY_EN | BT_CH_SECONDARY_EN | BT_SYNC_2_BT_DISABLE;
+	bt_cmd->flags = cpu_to_le32(flags);
 
-	bt_cmd->valid_bit_msk = cpu_to_le16(BT_VALID_ENABLE |
+	bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_ENABLE |
 					    BT_VALID_BT_PRIO_BOOST |
 					    BT_VALID_MAX_KILL |
 					    BT_VALID_3W_TMRS |
 					    BT_VALID_KILL_ACK |
 					    BT_VALID_KILL_CTS |
 					    BT_VALID_REDUCED_TX_POWER |
-					    BT_VALID_LUT);
-
-	if (mvm->cfg->bt_shared_single_ant)
-		memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant_lookup,
-		       sizeof(iwl_single_shared_ant_lookup));
-	else if (is_loose_coex())
-		memcpy(&bt_cmd->decision_lut, iwl_loose_lookup,
-		       sizeof(iwl_tight_lookup));
-	else
-		memcpy(&bt_cmd->decision_lut, iwl_tight_lookup,
-		       sizeof(iwl_tight_lookup));
-
-	bt_cmd->bt_prio_boost = cpu_to_le32(IWL_BT_DEFAULT_BOOST);
+					    BT_VALID_LUT |
+					    BT_VALID_WIFI_RX_SW_PRIO_BOOST |
+					    BT_VALID_WIFI_TX_SW_PRIO_BOOST |
+					    BT_VALID_MULTI_PRIO_LUT |
+					    BT_VALID_CORUN_LUT_20 |
+					    BT_VALID_CORUN_LUT_40 |
+					    BT_VALID_ANT_ISOLATION |
+					    BT_VALID_ANT_ISOLATION_THRS |
+					    BT_VALID_TXTX_DELTA_FREQ_THRS |
+					    BT_VALID_TXRX_MAX_FREQ_0);
+
+	memcpy(&bt_cmd->decision_lut, iwl_combined_lookup,
+	       sizeof(iwl_combined_lookup));
+	memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost,
+	       sizeof(iwl_bt_prio_boost));
+	memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut,
+	       sizeof(iwl_bt_mprio_lut));
 	bt_cmd->kill_ack_msk =
 		cpu_to_le32(iwl_bt_ack_kill_msk[BT_KILL_MSK_DEFAULT]);
 	bt_cmd->kill_cts_msk =
 		cpu_to_le32(iwl_bt_cts_kill_msk[BT_KILL_MSK_DEFAULT]);
 
 	memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
+	memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
 
 	ret = iwl_mvm_send_cmd(mvm, &cmd);
 
@@ -338,9 +420,11 @@ static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm,
 	bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]);
 	bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]);
 	bt_cmd->valid_bit_msk =
-		cpu_to_le16(BT_VALID_KILL_ACK | BT_VALID_KILL_CTS);
+		cpu_to_le32(BT_VALID_KILL_ACK | BT_VALID_KILL_CTS);
 
-	IWL_DEBUG_COEX(mvm, "bt_kill_msk = %d\n", bt_kill_msk);
+	IWL_DEBUG_COEX(mvm, "ACK Kill msk = 0x%08x, CTS Kill msk = 0x%08x\n",
+		       iwl_bt_ack_kill_msk[bt_kill_msk],
+		       iwl_bt_cts_kill_msk[bt_kill_msk]);
 
 	ret = iwl_mvm_send_cmd(mvm, &cmd);
 
@@ -381,7 +465,7 @@ static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
 		return -ENOMEM;
 	cmd.data[0] = bt_cmd;
 
-	bt_cmd->valid_bit_msk = cpu_to_le16(BT_VALID_REDUCED_TX_POWER),
+	bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_REDUCED_TX_POWER),
 	bt_cmd->bt_reduced_tx_power = sta_id;
 
 	if (enable)
@@ -403,8 +487,11 @@ struct iwl_bt_iterator_data {
 	struct iwl_mvm *mvm;
 	u32 num_bss_ifaces;
 	bool reduced_tx_power;
+	struct ieee80211_chanctx_conf *primary;
+	struct ieee80211_chanctx_conf *secondary;
 };
 
+/* must be called under rcu_read_lock */
 static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 				      struct ieee80211_vif *vif)
 {
@@ -413,43 +500,67 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 	struct iwl_mvm *mvm = data->mvm;
 	struct ieee80211_chanctx_conf *chanctx_conf;
 	enum ieee80211_smps_mode smps_mode;
-	enum ieee80211_band band;
 	int ave_rssi;
 
 	lockdep_assert_held(&mvm->mutex);
-	if (vif->type != NL80211_IFTYPE_STATION)
-		return;
 
-	rcu_read_lock();
-	chanctx_conf = rcu_dereference(vif->chanctx_conf);
-	if (chanctx_conf && chanctx_conf->def.chan)
-		band = chanctx_conf->def.chan->band;
-	else
-		band = -1;
-	rcu_read_unlock();
+	if (vif->type != NL80211_IFTYPE_STATION &&
+	    vif->type != NL80211_IFTYPE_AP)
+		return;
 
 	smps_mode = IEEE80211_SMPS_AUTOMATIC;
 
-	/* non associated BSSes aren't to be considered */
-	if (!vif->bss_conf.assoc)
+	chanctx_conf = rcu_dereference(vif->chanctx_conf);
+
+	/* If channel context is invalid or not on 2.4GHz .. */
+	if ((!chanctx_conf ||
+	     chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ)) {
+		/* ... and it is an associated STATION, relax constraints */
+		if (vif->type == NL80211_IFTYPE_STATION && vif->bss_conf.assoc)
+			iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
+					    smps_mode);
 		return;
+	}
+
+	/* SoftAP / GO will always be primary */
+	if (vif->type == NL80211_IFTYPE_AP) {
+		if (!mvmvif->ap_active)
+			return;
+
+		/* the Ack / Cts kill mask must be default if AP / GO */
+		data->reduced_tx_power = false;
 
-	if (band != IEEE80211_BAND_2GHZ) {
-		iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
-				    smps_mode);
+		if (chanctx_conf == data->primary)
+			return;
+
+		/* downgrade the current primary no matter what its type is */
+		data->secondary = data->primary;
+		data->primary = chanctx_conf;
 		return;
 	}
 
+	/* we are now a STA / P2P Client, and take associated ones only */
+	if (!vif->bss_conf.assoc)
+		return;
+
+	/* STA / P2P Client, try to be primary if first vif */
+	if (!data->primary || data->primary == chanctx_conf)
+		data->primary = chanctx_conf;
+	else if (!data->secondary)
+		/* if secondary is not NULL, it might be a GO */
+		data->secondary = chanctx_conf;
+
 	if (data->notif->bt_status)
 		smps_mode = IEEE80211_SMPS_DYNAMIC;
 
-	if (data->notif->bt_traffic_load >= IWL_BT_LOAD_FORCE_SISO_THRESHOLD)
+	if (le32_to_cpu(data->notif->bt_activity_grading) >=
+	    IWL_BT_LOAD_FORCE_SISO_THRESHOLD)
 		smps_mode = IEEE80211_SMPS_STATIC;
 
 	IWL_DEBUG_COEX(data->mvm,
-		       "mac %d: bt_status %d traffic_load %d smps_req %d\n",
+		       "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n",
 		       mvmvif->id,  data->notif->bt_status,
-		       data->notif->bt_traffic_load, smps_mode);
+		       data->notif->bt_activity_grading, smps_mode);
 
 	iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode);
 
@@ -518,11 +629,72 @@ static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
 		.notif = &mvm->last_bt_notif,
 		.reduced_tx_power = true,
 	};
+	struct iwl_bt_coex_ci_cmd cmd = {};
+	u8 ci_bw_idx;
 
+	rcu_read_lock();
 	ieee80211_iterate_active_interfaces_atomic(
 					mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
 					iwl_mvm_bt_notif_iterator, &data);
 
+	if (data.primary) {
+		struct ieee80211_chanctx_conf *chan = data.primary;
+		if (WARN_ON(!chan->def.chan)) {
+			rcu_read_unlock();
+			return;
+		}
+
+		if (chan->def.width < NL80211_CHAN_WIDTH_40) {
+			ci_bw_idx = 0;
+			cmd.co_run_bw_primary = 0;
+		} else {
+			cmd.co_run_bw_primary = 1;
+			if (chan->def.center_freq1 >
+			    chan->def.chan->center_freq)
+				ci_bw_idx = 2;
+			else
+				ci_bw_idx = 1;
+		}
+
+		cmd.bt_primary_ci =
+			iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
+		cmd.primary_ch_phy_id = *((u16 *)data.primary->drv_priv);
+	}
+
+	if (data.secondary) {
+		struct ieee80211_chanctx_conf *chan = data.secondary;
+		if (WARN_ON(!data.secondary->def.chan)) {
+			rcu_read_unlock();
+			return;
+		}
+
+		if (chan->def.width < NL80211_CHAN_WIDTH_40) {
+			ci_bw_idx = 0;
+			cmd.co_run_bw_secondary = 0;
+		} else {
+			cmd.co_run_bw_secondary = 1;
+			if (chan->def.center_freq1 >
+			    chan->def.chan->center_freq)
+				ci_bw_idx = 2;
+			else
+				ci_bw_idx = 1;
+		}
+
+		cmd.bt_secondary_ci =
+			iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
+		cmd.secondary_ch_phy_id = *((u16 *)data.primary->drv_priv);
+	}
+
+	rcu_read_unlock();
+
+	/* Don't spam the fw with the same command over and over */
+	if (memcmp(&cmd, &mvm->last_bt_ci_cmd, sizeof(cmd))) {
+		if (iwl_mvm_send_cmd_pdu(mvm, BT_COEX_CI, CMD_SYNC,
+					 sizeof(cmd), &cmd))
+			IWL_ERR(mvm, "Failed to send BT_CI cmd");
+		memcpy(&mvm->last_bt_ci_cmd, &cmd, sizeof(cmd));
+	}
+
 	/*
 	 * If there are no BSS / P2P client interfaces, reduced Tx Power is
 	 * irrelevant since it is based on the RSSI coming from the beacon.
@@ -544,12 +716,18 @@ int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
 
 
 	IWL_DEBUG_COEX(mvm, "BT Coex Notification received\n");
-	IWL_DEBUG_COEX(mvm, "\tBT %salive\n", notif->bt_status ? "" : "not ");
+	IWL_DEBUG_COEX(mvm, "\tBT status: %s\n",
+		       notif->bt_status ? "ON" : "OFF");
 	IWL_DEBUG_COEX(mvm, "\tBT open conn %d\n", notif->bt_open_conn);
-	IWL_DEBUG_COEX(mvm, "\tBT traffic load %d\n", notif->bt_traffic_load);
+	IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
+	IWL_DEBUG_COEX(mvm, "\tBT primary_ch_lut %d\n",
+		       le32_to_cpu(notif->primary_ch_lut));
+	IWL_DEBUG_COEX(mvm, "\tBT secondary_ch_lut %d\n",
+		       le32_to_cpu(notif->secondary_ch_lut));
+	IWL_DEBUG_COEX(mvm, "\tBT activity grading %d\n",
+		       le32_to_cpu(notif->bt_activity_grading));
 	IWL_DEBUG_COEX(mvm, "\tBT agg traffic load %d\n",
 		       notif->bt_agg_traffic_load);
-	IWL_DEBUG_COEX(mvm, "\tBT ci compliance %d\n", notif->bt_ci_compliance);
 
 	/* remember this notification for future use: rssi fluctuations */
 	memcpy(&mvm->last_bt_notif, notif, sizeof(mvm->last_bt_notif));
@@ -643,7 +821,10 @@ void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 		IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
 }
 
-void iwl_mvm_bt_coex_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
+void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 {
+	if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX))
+		return;
+
 	iwl_mvm_bt_coex_notif_handle(mvm);
 }
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-bt-coex.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-bt-coex.h
index 05c61d6f384e..a470ea0db29e 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-bt-coex.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-bt-coex.h
@@ -95,10 +95,10 @@ enum iwl_bt_coex_flags {
 	BT_COEX_NW			= 0x3 << BT_COEX_MODE_POS,
 	BT_USE_DEFAULTS			= BIT(6),
 	BT_SYNC_2_BT_DISABLE		= BIT(7),
-	/*
-	 * For future use - when the flags will be enlarged
-	 * BT_COEX_CORUNNING_TBL_EN	= BIT(8),
-	 */
+	BT_COEX_CORUNNING_TBL_EN	= BIT(8),
+	BT_COEX_MPLUT_TBL_EN		= BIT(9),
+	/* Bit 10 is reserved */
+	BT_COEX_WF_PRIO_BOOST_CHECK_EN	= BIT(11),
 };
 
 /*
@@ -121,11 +121,8 @@ enum iwl_bt_coex_valid_bit_msk {
 	BT_VALID_CORUN_LUT_40		= BIT(13),
 	BT_VALID_ANT_ISOLATION		= BIT(14),
 	BT_VALID_ANT_ISOLATION_THRS	= BIT(15),
-	/*
-	 * For future use - when the valid flags will be enlarged
-	 * BT_VALID_TXTX_DELTA_FREQ_THRS	= BIT(16),
-	 * BT_VALID_TXRX_MAX_FREQ_0	= BIT(17),
-	 */
+	BT_VALID_TXTX_DELTA_FREQ_THRS	= BIT(16),
+	BT_VALID_TXRX_MAX_FREQ_0	= BIT(17),
 };
 
 /**
@@ -142,48 +139,88 @@ enum iwl_bt_reduced_tx_power {
 	BT_REDUCED_TX_POWER_DATA	= BIT(1),
 };
 
+enum iwl_bt_coex_lut_type {
+	BT_COEX_TIGHT_LUT = 0,
+	BT_COEX_LOOSE_LUT,
+	BT_COEX_TX_DIS_LUT,
+
+	BT_COEX_MAX_LUT,
+};
+
 #define BT_COEX_LUT_SIZE (12)
+#define BT_COEX_CORUN_LUT_SIZE (32)
+#define BT_COEX_MULTI_PRIO_LUT_SIZE (2)
+#define BT_COEX_BOOST_SIZE (4)
+#define BT_REDUCED_TX_POWER_BIT BIT(7)
 
 /**
  * struct iwl_bt_coex_cmd - bt coex configuration command
  * @flags:&enum iwl_bt_coex_flags
- * @lead_time:
  * @max_kill:
- * @bt3_time_t7_value:
- * @kill_ack_msk:
- * @kill_cts_msk:
- * @bt3_prio_sample_time:
- * @bt3_timer_t2_value:
- * @bt4_reaction_time:
- * @decision_lut[12]:
  * @bt_reduced_tx_power: enum %iwl_bt_reduced_tx_power
- * @valid_bit_msk: enum %iwl_bt_coex_valid_bit_msk
- * @bt_prio_boost: values for PTA boost register
+ * @bt4_antenna_isolation:
+ * @bt4_antenna_isolation_thr:
+ * @bt4_tx_tx_delta_freq_thr:
+ * @bt4_tx_rx_max_freq0:
+ * @bt_prio_boost:
  * @wifi_tx_prio_boost: SW boost of wifi tx priority
  * @wifi_rx_prio_boost: SW boost of wifi rx priority
+ * @kill_ack_msk:
+ * @kill_cts_msk:
+ * @decision_lut:
+ * @bt4_multiprio_lut:
+ * @bt4_corun_lut20:
+ * @bt4_corun_lut40:
+ * @valid_bit_msk: enum %iwl_bt_coex_valid_bit_msk
  *
  * The structure is used for the BT_COEX command.
  */
 struct iwl_bt_coex_cmd {
-	u8 flags;
-	u8 lead_time;
+	__le32 flags;
 	u8 max_kill;
-	u8 bt3_time_t7_value;
+	u8 bt_reduced_tx_power;
+	u8 reserved[2];
+
+	u8 bt4_antenna_isolation;
+	u8 bt4_antenna_isolation_thr;
+	u8 bt4_tx_tx_delta_freq_thr;
+	u8 bt4_tx_rx_max_freq0;
+
+	__le32 bt_prio_boost[BT_COEX_BOOST_SIZE];
+	__le32 wifi_tx_prio_boost;
+	__le32 wifi_rx_prio_boost;
 	__le32 kill_ack_msk;
 	__le32 kill_cts_msk;
-	u8 bt3_prio_sample_time;
-	u8 bt3_timer_t2_value;
-	__le16 bt4_reaction_time;
-	__le32 decision_lut[BT_COEX_LUT_SIZE];
-	u8 bt_reduced_tx_power;
-	u8 reserved;
-	__le16 valid_bit_msk;
-	__le32 bt_prio_boost;
-	u8 reserved2;
-	u8 wifi_tx_prio_boost;
-	__le16 wifi_rx_prio_boost;
+
+	__le32 decision_lut[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE];
+	__le32 bt4_multiprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE];
+	__le32 bt4_corun_lut20[BT_COEX_CORUN_LUT_SIZE];
+	__le32 bt4_corun_lut40[BT_COEX_CORUN_LUT_SIZE];
+
+	__le32 valid_bit_msk;
 } __packed; /* BT_COEX_CMD_API_S_VER_3 */
 
+/**
+ * struct iwl_bt_coex_ci_cmd - bt coex channel inhibition command
+ * @bt_primary_ci:
+ * @bt_secondary_ci:
+ * @co_run_bw_primary:
+ * @co_run_bw_secondary:
+ * @primary_ch_phy_id:
+ * @secondary_ch_phy_id:
+ *
+ * Used for BT_COEX_CI command
+ */
+struct iwl_bt_coex_ci_cmd {
+	__le64 bt_primary_ci;
+	__le64 bt_secondary_ci;
+
+	u8 co_run_bw_primary;
+	u8 co_run_bw_secondary;
+	u8 primary_ch_phy_id;
+	u8 secondary_ch_phy_id;
+} __packed; /* BT_CI_MSG_API_S_VER_1 */
+
 #define BT_MBOX(n_dw, _msg, _pos, _nbits)	\
 	BT_MBOX##n_dw##_##_msg##_POS = (_pos),	\
 	BT_MBOX##n_dw##_##_msg = BITS(_nbits) << BT_MBOX##n_dw##_##_msg##_POS
@@ -244,23 +281,39 @@ enum iwl_bt_mxbox_dw3 {
 	((le32_to_cpu((_notif)->mbox_msg[(_num)]) & BT_MBOX##_num##_##_field)\
 	>> BT_MBOX##_num##_##_field##_POS)
 
+enum iwl_bt_activity_grading {
+	BT_OFF			= 0,
+	BT_ON_NO_CONNECTION	= 1,
+	BT_LOW_TRAFFIC		= 2,
+	BT_HIGH_TRAFFIC		= 3,
+};
+
 /**
  * struct iwl_bt_coex_profile_notif - notification about BT coex
  * @mbox_msg: message from BT to WiFi
- * @:bt_status: 0 - off, 1 - on
- * @:bt_open_conn: number of BT connections open
- * @:bt_traffic_load: load of BT traffic
- * @:bt_agg_traffic_load: aggregated load of BT traffic
- * @:bt_ci_compliance: 0 - no CI compliance, 1 - CI compliant
+ * @msg_idx: the index of the message
+ * @bt_status: 0 - off, 1 - on
+ * @bt_open_conn: number of BT connections open
+ * @bt_traffic_load: load of BT traffic
+ * @bt_agg_traffic_load: aggregated load of BT traffic
+ * @bt_ci_compliance: 0 - no CI compliance, 1 - CI compliant
+ * @primary_ch_lut: LUT used for primary channel
+ * @secondary_ch_lut: LUT used for secondary channel
+ * @bt_activity_grading: the activity of BT enum %iwl_bt_activity_grading
  */
 struct iwl_bt_coex_profile_notif {
 	__le32 mbox_msg[4];
+	__le32 msg_idx;
 	u8 bt_status;
 	u8 bt_open_conn;
 	u8 bt_traffic_load;
 	u8 bt_agg_traffic_load;
 	u8 bt_ci_compliance;
 	u8 reserved[3];
+
+	__le32 primary_ch_lut;
+	__le32 secondary_ch_lut;
+	__le32 bt_activity_grading;
 } __packed; /* BT_COEX_PROFILE_NTFY_API_S_VER_2 */
 
 enum iwl_bt_coex_prio_table_event {
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
index c28af8ac3d5f..c42424c69183 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
@@ -181,6 +181,7 @@ enum {
 	BT_COEX_PRIO_TABLE = 0xcc,
 	BT_COEX_PROT_ENV = 0xcd,
 	BT_PROFILE_NOTIFICATION = 0xce,
+	BT_COEX_CI = 0x5d,
 
 	REPLY_BEACON_FILTERING_CMD = 0xd2,
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 8c619151c467..a42c6bb1b0e8 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -863,7 +863,7 @@ static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
 			if (ret)
 				IWL_ERR(mvm, "failed to update power mode\n");
 		}
-		iwl_mvm_bt_coex_vif_assoc(mvm, vif);
+		iwl_mvm_bt_coex_vif_change(mvm, vif);
 	} else if (changes & BSS_CHANGED_BEACON_INFO) {
 		/*
 		 * We received a beacon _after_ association so
@@ -931,6 +931,8 @@ static int iwl_mvm_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 	if (vif->p2p && mvm->p2p_device_vif)
 		iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
 
+	iwl_mvm_bt_coex_vif_change(mvm, vif);
+
 	mutex_unlock(&mvm->mutex);
 	return 0;
 
@@ -956,6 +958,8 @@ static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 
 	mvmvif->ap_active = false;
 
+	iwl_mvm_bt_coex_vif_change(mvm, vif);
+
 	/* Need to update the P2P Device MAC */
 	if (vif->p2p && mvm->p2p_device_vif)
 		iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index a56c1b8f5493..dc18668b4f78 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -533,6 +533,7 @@ struct iwl_mvm {
 	/* BT-Coex */
 	u8 bt_kill_msk;
 	struct iwl_bt_coex_profile_notif last_bt_notif;
+	struct iwl_bt_coex_ci_cmd last_bt_ci_cmd;
 
 	/* Thermal Throttling and CTkill */
 	struct iwl_mvm_tt_mgmt thermal_throttle;
@@ -786,7 +787,7 @@ int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
 			     struct iwl_device_cmd *cmd);
 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 			   enum ieee80211_rssi_event rssi_event);
-void iwl_mvm_bt_coex_vif_assoc(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
+void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 
 /* beacon filtering */
 #ifdef CONFIG_IWLWIFI_DEBUGFS
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index a9ed45708bc2..a8af7aceeaca 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -310,6 +310,7 @@ static const char *iwl_mvm_cmd_strings[REPLY_MAX] = {
 	CMD(REPLY_BEACON_FILTERING_CMD),
 	CMD(REPLY_THERMAL_MNG_BACKOFF),
 	CMD(MAC_PM_POWER_TABLE),
+	CMD(BT_COEX_CI),
 };
 #undef CMD
 
-- 
cgit 


From 18bc6996c74ba475061fd1532e4a9f4409c8bc63 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 25 Jun 2013 15:42:03 +0300
Subject: iwlwifi: mvm: BT Coex - no need to send envelopes

This was due to a fw remainder of old implementation.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/bt-coex.c        | 25 -----------------------
 drivers/net/wireless/iwlwifi/mvm/fw-api-bt-coex.h | 16 ---------------
 2 files changed, 41 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index 55d1a6c469ee..1990fde92d64 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -120,20 +120,6 @@ int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm)
 				    &iwl_bt_prio_tbl);
 }
 
-static int iwl_send_bt_env(struct iwl_mvm *mvm, u8 action, u8 type)
-{
-	struct iwl_bt_coex_prot_env_cmd env_cmd;
-	int ret;
-
-	env_cmd.action = action;
-	env_cmd.type = type;
-	ret = iwl_mvm_send_cmd_pdu(mvm, BT_COEX_PROT_ENV, CMD_SYNC,
-				   sizeof(env_cmd), &env_cmd);
-	if (ret)
-		IWL_ERR(mvm, "failed to send BT env command\n");
-	return ret;
-}
-
 enum iwl_bt_kill_msk {
 	BT_KILL_MSK_DEFAULT,
 	BT_KILL_MSK_SCO_HID_A2DP,
@@ -304,17 +290,6 @@ int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
 	if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX))
 		return 0;
 
-	/* go to CALIB state in internal BT-Coex state machine */
-	ret = iwl_send_bt_env(mvm, BT_COEX_ENV_OPEN,
-			      BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
-	if (ret)
-		return ret;
-
-	ret  = iwl_send_bt_env(mvm, BT_COEX_ENV_CLOSE,
-			       BT_COEX_PRIO_TBL_EVT_INIT_CALIB2);
-	if (ret)
-		return ret;
-
 	bt_cmd = kzalloc(sizeof(*bt_cmd), GFP_KERNEL);
 	if (!bt_cmd)
 		return -ENOMEM;
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-bt-coex.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-bt-coex.h
index a470ea0db29e..acb32f4b3dd4 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-bt-coex.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-bt-coex.h
@@ -353,20 +353,4 @@ struct iwl_bt_coex_prio_tbl_cmd {
 	u8 prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX];
 } __packed;
 
-enum iwl_bt_coex_env_action {
-	BT_COEX_ENV_CLOSE	 = 0,
-	BT_COEX_ENV_OPEN	 = 1,
-}; /* BT_COEX_PROT_ENV_ACTION_API_E_VER_1 */
-
-/**
- * struct iwl_bt_coex_prot_env_cmd - BT Protection Envelope
- * @action: enum %iwl_bt_coex_env_action
- * @type: enum %iwl_bt_coex_prio_table_event
- */
-struct iwl_bt_coex_prot_env_cmd {
-	u8 action; /* 0 = closed, 1 = open */
-	u8 type; /* 0 .. 15 */
-	u8 reserved[2];
-} __packed;
-
 #endif /* __fw_api_bt_coex_h__ */
-- 
cgit 


From 4515f30fb6c890faba21dd2d74ff2e84ad94c01c Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Sun, 30 Jun 2013 07:51:54 +0300
Subject: iwlwifi: mvm: BT Coex - use data from firmware

The data in MailBox comes direclty from the BT core.
We should use the data processed by the WiFi fw that is
appended to the MailBox in the BT Coex notification.
Also decide on whether the Coex type based on the input
from the the firmware and not hard coded.

Also fix the SMPS SISO threshold to 2 (it was 3).

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/bt-coex.c | 58 +++++++++++++++++++++---------
 drivers/net/wireless/iwlwifi/mvm/rs.c      | 22 ++++++------
 2 files changed, 53 insertions(+), 27 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index 1990fde92d64..6473828f761e 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -98,18 +98,10 @@ static const u8 iwl_bt_prio_tbl[BT_COEX_PRIO_TBL_EVT_MAX] = {
 
 #undef EVENT_PRIO_ANT
 
-#define IWL_BT_LOAD_FORCE_SISO_THRESHOLD	(3)
-
 #define BT_ENABLE_REDUCED_TXPOWER_THRESHOLD	(-62)
 #define BT_DISABLE_REDUCED_TXPOWER_THRESHOLD	(-65)
 #define BT_ANTENNA_COUPLING_THRESHOLD		(30)
 
-static inline bool is_loose_coex(void)
-{
-	return iwlwifi_mod_params.ant_coupling >
-		BT_ANTENNA_COUPLING_THRESHOLD;
-}
-
 int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm)
 {
 	if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX))
@@ -275,6 +267,40 @@ static const __le32 iwl_bt_mprio_lut[BT_COEX_MULTI_PRIO_LUT_SIZE] = {
 	cpu_to_le32(0x33113311),
 };
 
+static enum iwl_bt_coex_lut_type
+iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
+{
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	enum iwl_bt_coex_lut_type ret;
+	u16 phy_ctx_id;
+
+	lockdep_assert_held(&mvm->mutex);
+
+	rcu_read_lock();
+
+	chanctx_conf = rcu_dereference(vif->chanctx_conf);
+
+	if (!chanctx_conf ||
+	     chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
+		rcu_read_unlock();
+		return BT_COEX_LOOSE_LUT;
+	}
+
+	ret = BT_COEX_TX_DIS_LUT;
+
+	phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
+
+	if (mvm->last_bt_ci_cmd.primary_ch_phy_id == phy_ctx_id)
+		ret = le32_to_cpu(mvm->last_bt_notif.primary_ch_lut);
+	else if (mvm->last_bt_ci_cmd.secondary_ch_phy_id == phy_ctx_id)
+		ret = le32_to_cpu(mvm->last_bt_notif.secondary_ch_lut);
+	/* else - default = TX TX disallowed */
+
+	rcu_read_unlock();
+
+	return ret;
+}
+
 int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
 {
 	struct iwl_bt_coex_cmd *bt_cmd;
@@ -528,8 +554,7 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 	if (data->notif->bt_status)
 		smps_mode = IEEE80211_SMPS_DYNAMIC;
 
-	if (le32_to_cpu(data->notif->bt_activity_grading) >=
-	    IWL_BT_LOAD_FORCE_SISO_THRESHOLD)
+	if (le32_to_cpu(data->notif->bt_activity_grading) >= BT_LOW_TRAFFIC)
 		smps_mode = IEEE80211_SMPS_STATIC;
 
 	IWL_DEBUG_COEX(data->mvm,
@@ -540,13 +565,13 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 	iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode);
 
 	/* don't reduce the Tx power if in loose scheme */
-	if (is_loose_coex())
+	if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
 		return;
 
 	data->num_bss_ifaces++;
 
-	/* reduced Txpower only if there are open BT connections, so ...*/
-	if (!BT_MBOX_MSG(data->notif, 3, OPEN_CON_2)) {
+	/* reduced Txpower only if BT is on, so ...*/
+	if (le32_to_cpu(data->notif->bt_activity_grading) == BT_OFF) {
 		/* ... cancel reduced Tx power ... */
 		if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
 			IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
@@ -761,8 +786,8 @@ void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	if (WARN_ON_ONCE(mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT))
 		return;
 
-	/* No open connection - reports should be disabled */
-	if (!BT_MBOX_MSG(&mvm->last_bt_notif, 3, OPEN_CON_2))
+	/* No BT - reports should be disabled */
+	if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF)
 		return;
 
 	IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
@@ -772,7 +797,8 @@ void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	 * Check if rssi is good enough for reduced Tx power, but not in loose
 	 * scheme.
 	 */
-	if (rssi_event == RSSI_EVENT_LOW || is_loose_coex())
+	if (rssi_event == RSSI_EVENT_LOW ||
+	    iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
 		ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
 						  false);
 	else
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 6880ef3d064d..8e2bd7a3ff3f 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -282,7 +282,7 @@ static int rs_tl_turn_on_agg_for_tid(struct iwl_mvm *mvm,
 	 * Don't create TX aggregation sessions when in high
 	 * BT traffic, as they would just be disrupted by BT.
 	 */
-	if (BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD) >= 2) {
+	if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) >= 2) {
 		IWL_DEBUG_COEX(mvm, "BT traffic (%d), no aggregation allowed\n",
 			       BT_MBOX_MSG(&mvm->last_bt_notif,
 					   3, TRAFFIC_LOAD));
@@ -1322,7 +1322,7 @@ static int rs_move_siso_to_other(struct iwl_mvm *mvm,
 	u8 update_search_tbl_counter = 0;
 	int ret;
 
-	switch (BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD)) {
+	switch (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading)) {
 	case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
 		/* nothing */
 		break;
@@ -1342,7 +1342,7 @@ static int rs_move_siso_to_other(struct iwl_mvm *mvm,
 		break;
 	default:
 		IWL_ERR(mvm, "Invalid BT load %d",
-			BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD));
+			le32_to_cpu(mvm->last_bt_notif.bt_activity_grading));
 		break;
 	}
 
@@ -1453,7 +1453,7 @@ static int rs_move_mimo2_to_other(struct iwl_mvm *mvm,
 	u8 update_search_tbl_counter = 0;
 	int ret;
 
-	switch (BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD)) {
+	switch (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading)) {
 	case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
 		/* nothing */
 		break;
@@ -1470,7 +1470,7 @@ static int rs_move_mimo2_to_other(struct iwl_mvm *mvm,
 		break;
 	default:
 		IWL_ERR(mvm, "Invalid BT load %d",
-			BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD));
+			le32_to_cpu(mvm->last_bt_notif.bt_activity_grading));
 		break;
 	}
 
@@ -1955,24 +1955,24 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm,
 	     (current_tpt > (100 * tbl->expected_tpt[low]))))
 		scale_action = 0;
 
-	if ((BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD) >=
+	if ((le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) >=
 	     IWL_BT_COEX_TRAFFIC_LOAD_HIGH) && (is_mimo(tbl->lq_type))) {
 		if (lq_sta->last_bt_traffic >
-		    BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD)) {
+		    le32_to_cpu(mvm->last_bt_notif.bt_activity_grading)) {
 			/*
 			 * don't set scale_action, don't want to scale up if
 			 * the rate scale doesn't otherwise think that is a
 			 * good idea.
 			 */
 		} else if (lq_sta->last_bt_traffic <=
-			   BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD)) {
+			   le32_to_cpu(mvm->last_bt_notif.bt_activity_grading)) {
 			scale_action = -1;
 		}
 	}
 	lq_sta->last_bt_traffic =
-		BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD);
+		le32_to_cpu(mvm->last_bt_notif.bt_activity_grading);
 
-	if ((BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD) >=
+	if ((le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) >=
 	     IWL_BT_COEX_TRAFFIC_LOAD_HIGH) && is_mimo(tbl->lq_type)) {
 		/* search for a new modulation */
 		rs_stay_in_table(lq_sta, true);
@@ -2455,7 +2455,7 @@ static void rs_fill_link_cmd(struct iwl_mvm *mvm,
 	 * overwrite if needed, pass aggregation time limit
 	 * to uCode in uSec - This is racy - but heh, at least it helps...
 	 */
-	if (mvm && BT_MBOX_MSG(&mvm->last_bt_notif, 3, TRAFFIC_LOAD) >= 2)
+	if (mvm && le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) >= 2)
 		lq_cmd->agg_time_limit = cpu_to_le16(1200);
 }
 
-- 
cgit 


From d310e4059fe39cf7669801173d25dc9da29eb05e Mon Sep 17 00:00:00 2001
From: Eyal Shapira <eyal@wizery.com>
Date: Sun, 11 Aug 2013 18:43:47 +0300
Subject: iwlwifi: mvm: support VHT in rs

Enable rs algorithm to use VHT rates and use 80Mhz.
This enables reaching VHT rates which wasn't possible.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h |   4 +
 drivers/net/wireless/iwlwifi/mvm/mvm.h       |   3 +
 drivers/net/wireless/iwlwifi/mvm/rs.c        | 518 +++++++++++++++++----------
 drivers/net/wireless/iwlwifi/mvm/rs.h        | 117 +++---
 drivers/net/wireless/iwlwifi/mvm/tx.c        |  35 +-
 5 files changed, 431 insertions(+), 246 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h
index ada130524ef8..538f1c7a5966 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-rs.h
@@ -68,6 +68,7 @@
 /*
  * These serve as indexes into
  * struct iwl_rate_info fw_rate_idx_to_plcp[IWL_RATE_COUNT];
+ * TODO: avoid overlap between legacy and HT rates
  */
 enum {
 	IWL_RATE_1M_INDEX = 0,
@@ -121,6 +122,7 @@ enum {
 	IWL_RATE_2M_PLCP  = 20,
 	IWL_RATE_5M_PLCP  = 55,
 	IWL_RATE_11M_PLCP = 110,
+	IWL_RATE_INVM_PLCP = -1,
 };
 
 /*
@@ -177,6 +179,8 @@ enum {
  * which is the duplicate 20 MHz MCS (bit 5 set, all others zero.)
  */
 #define RATE_HT_MCS_RATE_CODE_MSK	0x7
+#define RATE_HT_MCS_NSS_POS             3
+#define RATE_HT_MCS_NSS_MSK             (3 << RATE_HT_MCS_NSS_POS)
 
 /* Bit 10: (1) Use Green Field preamble */
 #define RATE_HT_MCS_GF_POS		10
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index dc18668b4f78..2d65fe2474e9 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -586,6 +586,9 @@ int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm);
 /* Utils */
 int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags,
 					enum ieee80211_band band);
+void iwl_mvm_hwrate_to_tx_rate(u32 rate_n_flags,
+			       enum ieee80211_band band,
+			       struct ieee80211_tx_rate *r);
 u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx);
 void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm);
 void iwl_mvm_dump_sram(struct iwl_mvm *mvm);
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 8e2bd7a3ff3f..9dfb06515521 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -82,13 +82,24 @@ static const u8 ant_toggle_lookup[] = {
 	[ANT_ABC] = ANT_ABC,
 };
 
-#define IWL_DECLARE_RATE_INFO(r, s, rp, rn)		       \
-	[IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP,      \
-				    IWL_RATE_SISO_##s##M_PLCP, \
-				    IWL_RATE_MIMO2_##s##M_PLCP,\
-				    IWL_RATE_##rp##M_INDEX,    \
+#define IWL_DECLARE_RATE_INFO(r, s, rp, rn)			      \
+	[IWL_RATE_##r##M_INDEX] = { IWL_RATE_##r##M_PLCP,	      \
+				    IWL_RATE_HT_SISO_MCS_##s##_PLCP,  \
+				    IWL_RATE_HT_MIMO2_MCS_##s##_PLCP, \
+				    IWL_RATE_VHT_SISO_MCS_##s##_PLCP, \
+				    IWL_RATE_VHT_MIMO2_MCS_##s##_PLCP,\
+				    IWL_RATE_##rp##M_INDEX,	      \
 				    IWL_RATE_##rn##M_INDEX }
 
+#define IWL_DECLARE_MCS_RATE(s)						  \
+	[IWL_RATE_MCS_##s##_INDEX] = { IWL_RATE_INVM_PLCP,		  \
+				       IWL_RATE_HT_SISO_MCS_##s##_PLCP,	  \
+				       IWL_RATE_HT_MIMO2_MCS_##s##_PLCP,  \
+				       IWL_RATE_VHT_SISO_MCS_##s##_PLCP,  \
+				       IWL_RATE_VHT_MIMO2_MCS_##s##_PLCP, \
+				       IWL_RATE_INVM_INDEX,	          \
+				       IWL_RATE_INVM_INDEX }
+
 /*
  * Parameter order:
  *   rate, ht rate, prev rate, next rate
@@ -102,16 +113,17 @@ static const struct iwl_rs_rate_info iwl_rates[IWL_RATE_COUNT] = {
 	IWL_DECLARE_RATE_INFO(2, INV, 1, 5),     /*  2mbps */
 	IWL_DECLARE_RATE_INFO(5, INV, 2, 11),    /*5.5mbps */
 	IWL_DECLARE_RATE_INFO(11, INV, 9, 12),   /* 11mbps */
-	IWL_DECLARE_RATE_INFO(6, 6, 5, 11),      /*  6mbps */
-	IWL_DECLARE_RATE_INFO(9, 6, 6, 11),      /*  9mbps */
-	IWL_DECLARE_RATE_INFO(12, 12, 11, 18),   /* 12mbps */
-	IWL_DECLARE_RATE_INFO(18, 18, 12, 24),   /* 18mbps */
-	IWL_DECLARE_RATE_INFO(24, 24, 18, 36),   /* 24mbps */
-	IWL_DECLARE_RATE_INFO(36, 36, 24, 48),   /* 36mbps */
-	IWL_DECLARE_RATE_INFO(48, 48, 36, 54),   /* 48mbps */
-	IWL_DECLARE_RATE_INFO(54, 54, 48, INV),  /* 54mbps */
-	IWL_DECLARE_RATE_INFO(60, 60, 48, INV),  /* 60mbps */
-	/* FIXME:RS:          ^^    should be INV (legacy) */
+	IWL_DECLARE_RATE_INFO(6, 0, 5, 11),      /*  6mbps ; MCS 0 */
+	IWL_DECLARE_RATE_INFO(9, INV, 6, 11),    /*  9mbps */
+	IWL_DECLARE_RATE_INFO(12, 1, 11, 18),    /* 12mbps ; MCS 1 */
+	IWL_DECLARE_RATE_INFO(18, 2, 12, 24),    /* 18mbps ; MCS 2 */
+	IWL_DECLARE_RATE_INFO(24, 3, 18, 36),    /* 24mbps ; MCS 3 */
+	IWL_DECLARE_RATE_INFO(36, 4, 24, 48),    /* 36mbps ; MCS 4 */
+	IWL_DECLARE_RATE_INFO(48, 5, 36, 54),    /* 48mbps ; MCS 5 */
+	IWL_DECLARE_RATE_INFO(54, 6, 48, INV),   /* 54mbps ; MCS 6 */
+	IWL_DECLARE_MCS_RATE(7),                 /* MCS 7 */
+	IWL_DECLARE_MCS_RATE(8),                 /* MCS 8 */
+	IWL_DECLARE_MCS_RATE(9),                 /* MCS 9 */
 };
 
 static inline u8 rs_extract_rate(u32 rate_n_flags)
@@ -124,26 +136,30 @@ static int iwl_hwrate_to_plcp_idx(u32 rate_n_flags)
 {
 	int idx = 0;
 
-	/* HT rate format */
 	if (rate_n_flags & RATE_MCS_HT_MSK) {
-		idx = rs_extract_rate(rate_n_flags);
-
-		WARN_ON_ONCE(idx >= IWL_RATE_MIMO3_6M_PLCP);
-		if (idx >= IWL_RATE_MIMO2_6M_PLCP)
-			idx = idx - IWL_RATE_MIMO2_6M_PLCP;
+		idx = rate_n_flags & RATE_HT_MCS_RATE_CODE_MSK;
+		idx += IWL_RATE_MCS_0_INDEX;
 
-		idx += IWL_FIRST_OFDM_RATE;
-		/* skip 9M not supported in ht*/
+		/* skip 9M not supported in HT*/
 		if (idx >= IWL_RATE_9M_INDEX)
 			idx += 1;
 		if ((idx >= IWL_FIRST_HT_RATE) && (idx <= IWL_LAST_HT_RATE))
 			return idx;
+	} else if (rate_n_flags & RATE_MCS_VHT_MSK) {
+		idx = rate_n_flags & RATE_VHT_MCS_RATE_CODE_MSK;
+		idx += IWL_RATE_MCS_0_INDEX;
 
-	/* legacy rate format, search for match in table */
+		/* skip 9M not supported in VHT*/
+		if (idx >= IWL_RATE_9M_INDEX)
+			idx++;
+		if ((idx >= IWL_FIRST_VHT_RATE) && (idx <= IWL_LAST_VHT_RATE))
+			return idx;
 	} else {
+		/* legacy rate format, search for match in table */
+
+		u8 legacy_rate = rs_extract_rate(rate_n_flags);
 		for (idx = 0; idx < ARRAY_SIZE(iwl_rates); idx++)
-			if (iwl_rates[idx].plcp ==
-					rs_extract_rate(rate_n_flags))
+			if (iwl_rates[idx].plcp == legacy_rate)
 				return idx;
 	}
 
@@ -200,6 +216,13 @@ static s32 expected_tpt_siso_40MHz[4][IWL_RATE_COUNT] = {
 	{0, 0, 0, 0, 112, 0, 220, 326, 429, 629, 819, 912, 1000, 1173, 1284},
 };
 
+static s32 expected_tpt_siso_80MHz[4][IWL_RATE_COUNT] = {
+	{0, 0, 0, 0, 130, 0, 191, 223, 244,  273,  288,  294,  298,  305,  308},
+	{0, 0, 0, 0, 138, 0, 200, 231, 251,  279,  293,  298,  302,  308,  312},
+	{0, 0, 0, 0, 217, 0, 429, 634, 834, 1220, 1585, 1760, 1931, 2258, 2466},
+	{0, 0, 0, 0, 241, 0, 475, 701, 921, 1343, 1741, 1931, 2117, 2468, 2691},
+};
+
 static s32 expected_tpt_mimo2_20MHz[4][IWL_RATE_COUNT] = {
 	{0, 0, 0, 0,  74, 0, 123, 155, 179, 213, 235, 243, 250,  261, 0},
 	{0, 0, 0, 0,  81, 0, 131, 164, 187, 221, 242, 250, 256,  267, 0},
@@ -214,6 +237,13 @@ static s32 expected_tpt_mimo2_40MHz[4][IWL_RATE_COUNT] = {
 	{0, 0, 0, 0, 221, 0, 430, 630, 816, 1169, 1490, 1641, 1784, 2053, 2221},
 };
 
+static s32 expected_tpt_mimo2_80MHz[4][IWL_RATE_COUNT] = {
+	{0, 0, 0, 0, 182, 0, 240,  264,  278,  299,  308,  311,  313,  317,  319},
+	{0, 0, 0, 0, 190, 0, 247,  269,  282,  302,  310,  313,  315,  319,  320},
+	{0, 0, 0, 0, 428, 0, 833, 1215, 1577, 2254, 2863, 3147, 3418, 3913, 4219},
+	{0, 0, 0, 0, 474, 0, 920, 1338, 1732, 2464, 3116, 3418, 3705, 4225, 4545},
+};
+
 /* mbps, mcs */
 static const struct iwl_rate_mcs_info iwl_rate_mcs[IWL_RATE_COUNT] = {
 	{  "1", "BPSK DSSS"},
@@ -424,42 +454,56 @@ static u32 rate_n_flags_from_tbl(struct iwl_mvm *mvm,
 {
 	u32 rate_n_flags = 0;
 
+	rate_n_flags |= ((tbl->ant_type << RATE_MCS_ANT_POS) &
+			 RATE_MCS_ANT_ABC_MSK);
+
 	if (is_legacy(tbl->lq_type)) {
-		rate_n_flags = iwl_rates[index].plcp;
+		rate_n_flags |= iwl_rates[index].plcp;
 		if (index >= IWL_FIRST_CCK_RATE && index <= IWL_LAST_CCK_RATE)
 			rate_n_flags |= RATE_MCS_CCK_MSK;
-	} else if (is_Ht(tbl->lq_type)) {
-		if (index > IWL_LAST_HT_RATE) {
+		return rate_n_flags;
+	}
+
+	if (is_ht(tbl->lq_type)) {
+		if (index < IWL_FIRST_HT_RATE || index > IWL_LAST_HT_RATE) {
 			IWL_ERR(mvm, "Invalid HT rate index %d\n", index);
 			index = IWL_LAST_HT_RATE;
 		}
-		rate_n_flags = RATE_MCS_HT_MSK;
+		rate_n_flags |= RATE_MCS_HT_MSK;
 
-		if (is_siso(tbl->lq_type))
-			rate_n_flags |=	iwl_rates[index].plcp_siso;
-		else if (is_mimo2(tbl->lq_type))
-			rate_n_flags |=	iwl_rates[index].plcp_mimo2;
+		if (is_ht_siso(tbl->lq_type))
+			rate_n_flags |=	iwl_rates[index].plcp_ht_siso;
+		else if (is_ht_mimo2(tbl->lq_type))
+			rate_n_flags |=	iwl_rates[index].plcp_ht_mimo2;
 		else
 			WARN_ON_ONCE(1);
+	} else if (is_vht(tbl->lq_type)) {
+		if (index < IWL_FIRST_VHT_RATE || index > IWL_LAST_VHT_RATE) {
+			IWL_ERR(mvm, "Invalid VHT rate index %d\n", index);
+			index = IWL_LAST_VHT_RATE;
+		}
+		rate_n_flags |= RATE_MCS_VHT_MSK;
+		if (is_vht_siso(tbl->lq_type))
+			rate_n_flags |=	iwl_rates[index].plcp_vht_siso;
+		else if (is_vht_mimo2(tbl->lq_type))
+			rate_n_flags |=	iwl_rates[index].plcp_vht_mimo2;
+		else
+			WARN_ON_ONCE(1);
+
 	} else {
 		IWL_ERR(mvm, "Invalid tbl->lq_type %d\n", tbl->lq_type);
 	}
 
-	rate_n_flags |= ((tbl->ant_type << RATE_MCS_ANT_POS) &
-						     RATE_MCS_ANT_ABC_MSK);
-
-	if (is_Ht(tbl->lq_type)) {
-		if (tbl->is_ht40)
-			rate_n_flags |= RATE_MCS_CHAN_WIDTH_40;
-		if (tbl->is_SGI)
-			rate_n_flags |= RATE_MCS_SGI_MSK;
-
-		if (use_green) {
-			rate_n_flags |= RATE_HT_MCS_GF_MSK;
-			if (is_siso(tbl->lq_type) && tbl->is_SGI) {
-				rate_n_flags &= ~RATE_MCS_SGI_MSK;
-				IWL_ERR(mvm, "GF was set with SGI:SISO\n");
-			}
+	rate_n_flags |= tbl->bw;
+	if (tbl->is_SGI)
+		rate_n_flags |= RATE_MCS_SGI_MSK;
+
+	/* TODO: remove GF completely ? */
+	if (use_green) {
+		rate_n_flags |= RATE_HT_MCS_GF_MSK;
+		if (is_ht_siso(tbl->lq_type) && tbl->is_SGI) {
+			rate_n_flags &= ~RATE_MCS_SGI_MSK;
+			IWL_ERR(mvm, "GF was set with SGI:SISO\n");
 		}
 	}
 	return rate_n_flags;
@@ -476,7 +520,7 @@ static int rs_get_tbl_info_from_mcs(const u32 rate_n_flags,
 {
 	u32 ant_msk = (rate_n_flags & RATE_MCS_ANT_ABC_MSK);
 	u8 num_of_ant = get_num_of_ant_from_rate(rate_n_flags);
-	u8 mcs;
+	u8 nss;
 
 	memset(tbl, 0, offsetof(struct iwl_scale_tbl_info, win));
 	*rate_idx = iwl_hwrate_to_plcp_idx(rate_n_flags);
@@ -486,41 +530,62 @@ static int rs_get_tbl_info_from_mcs(const u32 rate_n_flags,
 		return -EINVAL;
 	}
 	tbl->is_SGI = 0;	/* default legacy setup */
-	tbl->is_ht40 = 0;
+	tbl->bw = 0;
 	tbl->ant_type = (ant_msk >> RATE_MCS_ANT_POS);
 	tbl->lq_type = LQ_NONE;
 	tbl->max_search = IWL_MAX_SEARCH;
 
-	/* legacy rate format */
-	if (!(rate_n_flags & RATE_MCS_HT_MSK)) {
+	/* Legacy */
+	if (!(rate_n_flags & RATE_MCS_HT_MSK) &&
+	    !(rate_n_flags & RATE_MCS_VHT_MSK)) {
 		if (num_of_ant == 1) {
 			if (band == IEEE80211_BAND_5GHZ)
-				tbl->lq_type = LQ_A;
+				tbl->lq_type = LQ_LEGACY_A;
 			else
-				tbl->lq_type = LQ_G;
+				tbl->lq_type = LQ_LEGACY_G;
 		}
-	/* HT rate format */
-	} else {
-		if (rate_n_flags & RATE_MCS_SGI_MSK)
-			tbl->is_SGI = 1;
-
-		if (rate_n_flags & RATE_MCS_CHAN_WIDTH_40) /* TODO */
-			tbl->is_ht40 = 1;
-
-		mcs = rs_extract_rate(rate_n_flags);
-
-		/* SISO */
-		if (mcs <= IWL_RATE_SISO_60M_PLCP) {
-			if (num_of_ant == 1)
-				tbl->lq_type = LQ_SISO; /*else NONE*/
-		/* MIMO2 */
-		} else if (mcs <= IWL_RATE_MIMO2_60M_PLCP) {
-			if (num_of_ant == 2)
-				tbl->lq_type = LQ_MIMO2;
+
+		return 0;
+	}
+
+	/* HT or VHT */
+	if (rate_n_flags & RATE_MCS_SGI_MSK)
+		tbl->is_SGI = 1;
+
+	tbl->bw = rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK;
+
+	if (rate_n_flags & RATE_MCS_HT_MSK) {
+		nss = ((rate_n_flags & RATE_HT_MCS_NSS_MSK) >>
+		       RATE_HT_MCS_NSS_POS) + 1;
+
+		if (nss == 1) {
+			tbl->lq_type = LQ_HT_SISO;
+			WARN_ON_ONCE(num_of_ant != 1);
+		} else if (nss == 2) {
+			tbl->lq_type = LQ_HT_MIMO2;
+			WARN_ON_ONCE(num_of_ant != 2);
 		} else {
-			WARN_ON_ONCE(num_of_ant == 3);
+			WARN_ON_ONCE(1);
+		}
+	} else if (rate_n_flags & RATE_MCS_VHT_MSK) {
+		nss = ((rate_n_flags & RATE_VHT_MCS_NSS_MSK) >>
+		       RATE_VHT_MCS_NSS_POS) + 1;
+
+		if (nss == 1) {
+			tbl->lq_type = LQ_VHT_SISO;
+			WARN_ON_ONCE(num_of_ant != 1);
+		} else if (nss == 2) {
+			tbl->lq_type = LQ_VHT_MIMO2;
+			WARN_ON_ONCE(num_of_ant != 2);
+		} else {
+			WARN_ON_ONCE(1);
 		}
 	}
+
+	WARN_ON_ONCE(tbl->bw == RATE_MCS_CHAN_WIDTH_160);
+	WARN_ON_ONCE(tbl->bw == RATE_MCS_CHAN_WIDTH_80 &&
+		     !is_vht(tbl->lq_type));
+
 	return 0;
 }
 
@@ -579,16 +644,15 @@ static u16 rs_get_supported_rates(struct iwl_lq_sta *lq_sta,
 				  struct ieee80211_hdr *hdr,
 				  enum iwl_table_type rate_type)
 {
-	if (is_legacy(rate_type)) {
+	if (is_legacy(rate_type))
 		return lq_sta->active_legacy_rate;
-	} else {
-		if (is_siso(rate_type))
-			return lq_sta->active_siso_rate;
-		else {
-			WARN_ON_ONCE(!is_mimo2(rate_type));
-			return lq_sta->active_mimo2_rate;
-		}
-	}
+	else if (is_siso(rate_type))
+		return lq_sta->active_siso_rate;
+	else if (is_mimo2(rate_type))
+		return lq_sta->active_mimo2_rate;
+
+	WARN_ON_ONCE(1);
+	return 0;
 }
 
 static u16 rs_get_adjacent_rate(struct iwl_mvm *mvm, u8 index, u16 rate_mask,
@@ -665,15 +729,15 @@ static u32 rs_get_lower_rate(struct iwl_lq_sta *lq_sta,
 		switch_to_legacy = 1;
 		scale_index = rs_ht_to_legacy[scale_index];
 		if (lq_sta->band == IEEE80211_BAND_5GHZ)
-			tbl->lq_type = LQ_A;
+			tbl->lq_type = LQ_LEGACY_A;
 		else
-			tbl->lq_type = LQ_G;
+			tbl->lq_type = LQ_LEGACY_G;
 
 		if (num_of_ant(tbl->ant_type) > 1)
 			tbl->ant_type =
 			    first_antenna(iwl_fw_valid_tx_ant(mvm->fw));
 
-		tbl->is_ht40 = 0;
+		tbl->bw = 0;
 		tbl->is_SGI = 0;
 		tbl->max_search = IWL_MAX_SEARCH;
 	}
@@ -717,6 +781,18 @@ static bool table_type_matches(struct iwl_scale_tbl_info *a,
 		(a->is_SGI == b->is_SGI);
 }
 
+static u32 rs_ch_width_from_mac_flags(enum mac80211_rate_control_flags flags)
+{
+	if (flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
+		return RATE_MCS_CHAN_WIDTH_40;
+	else if (flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
+		return RATE_MCS_CHAN_WIDTH_80;
+	else if (flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
+		return RATE_MCS_CHAN_WIDTH_160;
+
+	return RATE_MCS_CHAN_WIDTH_20;
+}
+
 /*
  * mac80211 sends us Tx status
  */
@@ -786,16 +862,23 @@ static void rs_tx_status(void *mvm_r, struct ieee80211_supported_band *sband,
 		 */
 		if (info->band == IEEE80211_BAND_2GHZ)
 			mac_index += IWL_FIRST_OFDM_RATE;
+	} else if (mac_flags & IEEE80211_TX_RC_VHT_MCS) {
+		mac_index &= RATE_VHT_MCS_RATE_CODE_MSK;
+		if (mac_index >= (IWL_RATE_9M_INDEX - IWL_FIRST_OFDM_RATE))
+			mac_index++;
 	}
+
 	/* Here we actually compare this rate to the latest LQ command */
 	if ((mac_index < 0) ||
 	    (tbl_type.is_SGI != !!(mac_flags & IEEE80211_TX_RC_SHORT_GI)) ||
-	    (tbl_type.is_ht40 != !!(mac_flags & IEEE80211_TX_RC_40_MHZ_WIDTH)) ||
+	    (tbl_type.bw != rs_ch_width_from_mac_flags(mac_flags)) ||
 	    (tbl_type.ant_type != info->status.antenna) ||
 	    (!!(tx_rate & RATE_MCS_HT_MSK) !=
-				!!(mac_flags & IEEE80211_TX_RC_MCS)) ||
+	     !!(mac_flags & IEEE80211_TX_RC_MCS)) ||
+	    (!!(tx_rate & RATE_MCS_VHT_MSK) !=
+	     !!(mac_flags & IEEE80211_TX_RC_VHT_MCS)) ||
 	    (!!(tx_rate & RATE_HT_MCS_GF_MSK) !=
-				!!(mac_flags & IEEE80211_TX_RC_GREEN_FIELD)) ||
+	     !!(mac_flags & IEEE80211_TX_RC_GREEN_FIELD)) ||
 	    (rs_index != mac_index)) {
 		IWL_DEBUG_RATE(mvm,
 			       "initial rate %d does not match %d (0x%x)\n",
@@ -950,7 +1033,8 @@ static void rs_set_expected_tpt_table(struct iwl_lq_sta *lq_sta,
 	s32 (*ht_tbl_pointer)[IWL_RATE_COUNT];
 
 	/* Check for invalid LQ type */
-	if (WARN_ON_ONCE(!is_legacy(tbl->lq_type) && !is_Ht(tbl->lq_type))) {
+	if (WARN_ON_ONCE(!is_legacy(tbl->lq_type) && !is_ht(tbl->lq_type) &&
+			 !(is_vht(tbl->lq_type)))) {
 		tbl->expected_tpt = expected_tpt_legacy;
 		return;
 	}
@@ -961,18 +1045,40 @@ static void rs_set_expected_tpt_table(struct iwl_lq_sta *lq_sta,
 		return;
 	}
 
+	ht_tbl_pointer = expected_tpt_mimo2_20MHz;
 	/* Choose among many HT tables depending on number of streams
-	 * (SISO/MIMO2), channel width (20/40), SGI, and aggregation
+	 * (SISO/MIMO2), channel width (20/40/80), SGI, and aggregation
 	 * status */
-	if (is_siso(tbl->lq_type) && !tbl->is_ht40)
-		ht_tbl_pointer = expected_tpt_siso_20MHz;
-	else if (is_siso(tbl->lq_type))
-		ht_tbl_pointer = expected_tpt_siso_40MHz;
-	else if (is_mimo2(tbl->lq_type) && !tbl->is_ht40)
-		ht_tbl_pointer = expected_tpt_mimo2_20MHz;
-	else {
-		WARN_ON_ONCE(!is_mimo2(tbl->lq_type));
-		ht_tbl_pointer = expected_tpt_mimo2_40MHz;
+	if (is_siso(tbl->lq_type)) {
+		switch (tbl->bw) {
+		case RATE_MCS_CHAN_WIDTH_20:
+			ht_tbl_pointer = expected_tpt_siso_20MHz;
+			break;
+		case RATE_MCS_CHAN_WIDTH_40:
+			ht_tbl_pointer = expected_tpt_siso_40MHz;
+			break;
+		case RATE_MCS_CHAN_WIDTH_80:
+			ht_tbl_pointer = expected_tpt_siso_80MHz;
+			break;
+		default:
+			WARN_ON_ONCE(1);
+		}
+	} else if (is_mimo2(tbl->lq_type)) {
+		switch (tbl->bw) {
+		case RATE_MCS_CHAN_WIDTH_20:
+			ht_tbl_pointer = expected_tpt_mimo2_20MHz;
+			break;
+		case RATE_MCS_CHAN_WIDTH_40:
+			ht_tbl_pointer = expected_tpt_mimo2_40MHz;
+			break;
+		case RATE_MCS_CHAN_WIDTH_80:
+			ht_tbl_pointer = expected_tpt_mimo2_80MHz;
+			break;
+		default:
+			WARN_ON_ONCE(1);
+		}
+	} else {
+		WARN_ON_ONCE(1);
 	}
 
 	if (!tbl->is_SGI && !lq_sta->is_agg)		/* Normal */
@@ -1087,11 +1193,6 @@ static s32 rs_get_best_rate(struct iwl_mvm *mvm,
 	return new_rate;
 }
 
-static bool iwl_is_ht40_tx_allowed(struct ieee80211_sta *sta)
-{
-	return sta->bandwidth >= IEEE80211_STA_RX_BW_40;
-}
-
 /* Move to the next action and wrap around to the first action in case
  * we're at the last action. Assumes actions start at 0.
  */
@@ -1105,6 +1206,36 @@ static inline void rs_move_next_action(struct iwl_scale_tbl_info *tbl,
 	tbl->action = (tbl->action + 1) % (last_action + 1);
 }
 
+static void rs_set_bw_from_sta(struct iwl_scale_tbl_info *tbl,
+			       struct ieee80211_sta *sta)
+{
+	if (sta->bandwidth >= IEEE80211_STA_RX_BW_80)
+		tbl->bw = RATE_MCS_CHAN_WIDTH_80;
+	else if (sta->bandwidth >= IEEE80211_STA_RX_BW_40)
+		tbl->bw = RATE_MCS_CHAN_WIDTH_40;
+	else
+		tbl->bw = RATE_MCS_CHAN_WIDTH_20;
+}
+
+static bool rs_sgi_allowed(struct iwl_scale_tbl_info *tbl,
+			   struct ieee80211_sta *sta)
+{
+	struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
+	struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
+
+	if (is_ht20(tbl) && (ht_cap->cap &
+			     IEEE80211_HT_CAP_SGI_20))
+		return true;
+	if (is_ht40(tbl) && (ht_cap->cap &
+			     IEEE80211_HT_CAP_SGI_40))
+		return true;
+	if (is_ht80(tbl) && (vht_cap->cap &
+			     IEEE80211_VHT_CAP_SHORT_GI_80))
+		return true;
+
+	return false;
+}
+
 /*
  * Set up search table for MIMO2
  */
@@ -1129,16 +1260,12 @@ static int rs_switch_to_mimo2(struct iwl_mvm *mvm,
 
 	IWL_DEBUG_RATE(mvm, "LQ: try to switch to MIMO2\n");
 
-	tbl->lq_type = LQ_MIMO2;
+	tbl->lq_type = lq_sta->is_vht ? LQ_VHT_MIMO2 : LQ_HT_MIMO2;
 	tbl->action = 0;
 	tbl->max_search = IWL_MAX_SEARCH;
 	rate_mask = lq_sta->active_mimo2_rate;
 
-	if (iwl_is_ht40_tx_allowed(sta))
-		tbl->is_ht40 = 1;
-	else
-		tbl->is_ht40 = 0;
-
+	rs_set_bw_from_sta(tbl, sta);
 	rs_set_expected_tpt_table(lq_sta, tbl);
 
 	rate = rs_get_best_rate(mvm, lq_sta, tbl, rate_mask, index);
@@ -1174,19 +1301,15 @@ static int rs_switch_to_siso(struct iwl_mvm *mvm,
 
 	IWL_DEBUG_RATE(mvm, "LQ: try to switch to SISO\n");
 
-	tbl->lq_type = LQ_SISO;
+	tbl->lq_type = lq_sta->is_vht ? LQ_VHT_SISO : LQ_HT_SISO;
 	tbl->action = 0;
 	tbl->max_search = IWL_MAX_SEARCH;
 	rate_mask = lq_sta->active_siso_rate;
 
-	if (iwl_is_ht40_tx_allowed(sta))
-		tbl->is_ht40 = 1;
-	else
-		tbl->is_ht40 = 0;
-
 	if (is_green)
 		tbl->is_SGI = 0; /*11n spec: no SGI in SISO+Greenfield*/
 
+	rs_set_bw_from_sta(tbl, sta);
 	rs_set_expected_tpt_table(lq_sta, tbl);
 	rate = rs_get_best_rate(mvm, lq_sta, tbl, rate_mask, index);
 
@@ -1313,7 +1436,6 @@ static int rs_move_siso_to_other(struct iwl_mvm *mvm,
 	struct iwl_scale_tbl_info *search_tbl =
 				&(lq_sta->lq_info[(1 - lq_sta->active_tbl)]);
 	struct iwl_rate_scale_data *window = &(tbl->win[index]);
-	struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
 	u32 sz = (sizeof(struct iwl_scale_tbl_info) -
 		  (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT));
 	u8 start_action;
@@ -1385,11 +1507,7 @@ static int rs_move_siso_to_other(struct iwl_mvm *mvm,
 				goto out;
 			break;
 		case IWL_SISO_SWITCH_GI:
-			if (!tbl->is_ht40 && !(ht_cap->cap &
-						IEEE80211_HT_CAP_SGI_20))
-				break;
-			if (tbl->is_ht40 && !(ht_cap->cap &
-						IEEE80211_HT_CAP_SGI_40))
+			if (!rs_sgi_allowed(tbl, sta))
 				break;
 
 			IWL_DEBUG_RATE(mvm, "LQ: SISO toggle SGI/NGI\n");
@@ -1445,7 +1563,6 @@ static int rs_move_mimo2_to_other(struct iwl_mvm *mvm,
 	struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
 	struct iwl_scale_tbl_info *search_tbl =
 				&(lq_sta->lq_info[(1 - lq_sta->active_tbl)]);
-	struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
 	u32 sz = (sizeof(struct iwl_scale_tbl_info) -
 		  (sizeof(struct iwl_rate_scale_data) * IWL_RATE_COUNT));
 	u8 start_action;
@@ -1502,11 +1619,7 @@ static int rs_move_mimo2_to_other(struct iwl_mvm *mvm,
 			break;
 
 		case IWL_MIMO2_SWITCH_GI:
-			if (!tbl->is_ht40 && !(ht_cap->cap &
-						IEEE80211_HT_CAP_SGI_20))
-				break;
-			if (tbl->is_ht40 && !(ht_cap->cap &
-						IEEE80211_HT_CAP_SGI_40))
+			if (!rs_sgi_allowed(tbl, sta))
 				break;
 
 			IWL_DEBUG_RATE(mvm, "LQ: MIMO2 toggle SGI/NGI\n");
@@ -2167,7 +2280,6 @@ static void rs_get_rate(void *mvm_r, struct ieee80211_sta *sta, void *mvm_sta,
 	struct iwl_mvm *mvm __maybe_unused = IWL_OP_MODE_GET_MVM(op_mode);
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	struct iwl_lq_sta *lq_sta = mvm_sta;
-	int rate_idx;
 
 	IWL_DEBUG_RATE_LIMIT(mvm, "rate scale calculate new rate for skb\n");
 
@@ -2192,36 +2304,9 @@ static void rs_get_rate(void *mvm_r, struct ieee80211_sta *sta, void *mvm_sta,
 	if (rate_control_send_low(sta, mvm_sta, txrc))
 		return;
 
-	rate_idx  = lq_sta->last_txrate_idx;
-
-	if (lq_sta->last_rate_n_flags & RATE_MCS_HT_MSK) {
-		rate_idx -= IWL_FIRST_OFDM_RATE;
-		/* 6M and 9M shared same MCS index */
-		rate_idx = (rate_idx > 0) ? (rate_idx - 1) : 0;
-		WARN_ON_ONCE(rs_extract_rate(lq_sta->last_rate_n_flags) >=
-			     IWL_RATE_MIMO3_6M_PLCP);
-		if (rs_extract_rate(lq_sta->last_rate_n_flags) >=
-		    IWL_RATE_MIMO2_6M_PLCP)
-			rate_idx = rate_idx + MCS_INDEX_PER_STREAM;
-		info->control.rates[0].flags = IEEE80211_TX_RC_MCS;
-		if (lq_sta->last_rate_n_flags & RATE_MCS_SGI_MSK)
-			info->control.rates[0].flags |= IEEE80211_TX_RC_SHORT_GI;
-		if (lq_sta->last_rate_n_flags & RATE_MCS_CHAN_WIDTH_40) /* TODO */
-			info->control.rates[0].flags |= IEEE80211_TX_RC_40_MHZ_WIDTH;
-		if (lq_sta->last_rate_n_flags & RATE_HT_MCS_GF_MSK)
-			info->control.rates[0].flags |= IEEE80211_TX_RC_GREEN_FIELD;
-	} else {
-		/* Check for invalid rates */
-		if ((rate_idx < 0) || (rate_idx >= IWL_RATE_COUNT_LEGACY) ||
-		    ((sband->band == IEEE80211_BAND_5GHZ) &&
-		     (rate_idx < IWL_FIRST_OFDM_RATE)))
-			rate_idx = rate_lowest_index(sband, sta);
-		/* On valid 5 GHz rate, adjust index */
-		else if (sband->band == IEEE80211_BAND_5GHZ)
-			rate_idx -= IWL_FIRST_OFDM_RATE;
-		info->control.rates[0].flags = 0;
-	}
-	info->control.rates[0].idx = rate_idx;
+	iwl_mvm_hwrate_to_tx_rate(lq_sta->last_rate_n_flags,
+				  info->band, &info->control.rates[0]);
+
 	info->control.rates[0].count = 1;
 }
 
@@ -2238,6 +2323,24 @@ static void *rs_alloc_sta(void *mvm_rate, struct ieee80211_sta *sta,
 	return &sta_priv->lq_sta;
 }
 
+static int rs_vht_highest_rx_mcs_index(struct ieee80211_sta_vht_cap *vht_cap,
+				       int nss)
+{
+	u16 rx_mcs = le16_to_cpu(vht_cap->vht_mcs.rx_mcs_map) &
+		(0x3 << (2 * (nss - 1)));
+	rx_mcs >>= (2 * (nss - 1));
+
+	if (rx_mcs == IEEE80211_VHT_MCS_SUPPORT_0_7)
+		return IWL_RATE_MCS_7_INDEX;
+	else if (rx_mcs == IEEE80211_VHT_MCS_SUPPORT_0_8)
+		return IWL_RATE_MCS_8_INDEX;
+	else if (rx_mcs == IEEE80211_VHT_MCS_SUPPORT_0_9)
+		return IWL_RATE_MCS_9_INDEX;
+
+	WARN_ON_ONCE(rx_mcs != IEEE80211_VHT_MCS_NOT_SUPPORTED);
+	return -1;
+}
+
 /*
  * Called after adding a new station to initialize rate scaling
  */
@@ -2247,6 +2350,7 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 	int i, j;
 	struct ieee80211_hw *hw = mvm->hw;
 	struct ieee80211_sta_ht_cap *ht_cap = &sta->ht_cap;
+	struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
 	struct iwl_mvm_sta *sta_priv;
 	struct iwl_lq_sta *lq_sta;
 	struct ieee80211_supported_band *sband;
@@ -2285,25 +2389,54 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 	for_each_set_bit(i, &supp, BITS_PER_LONG)
 		lq_sta->active_legacy_rate |= BIT(sband->bitrates[i].hw_value);
 
-	/*
-	 * active_siso_rate mask includes 9 MBits (bit 5), and CCK (bits 0-3),
-	 * supp_rates[] does not; shift to convert format, force 9 MBits off.
-	 */
-	lq_sta->active_siso_rate = ht_cap->mcs.rx_mask[0] << 1;
-	lq_sta->active_siso_rate |= ht_cap->mcs.rx_mask[0] & 0x1;
-	lq_sta->active_siso_rate &= ~((u16)0x2);
-	lq_sta->active_siso_rate <<= IWL_FIRST_OFDM_RATE;
+	/* TODO: should probably account for rx_highest for both HT/VHT */
+	if (!vht_cap || !vht_cap->vht_supported) {
+		/* active_siso_rate mask includes 9 MBits (bit 5),
+		 * and CCK (bits 0-3), supp_rates[] does not;
+		 * shift to convert format, force 9 MBits off.
+		 */
+		lq_sta->active_siso_rate = ht_cap->mcs.rx_mask[0] << 1;
+		lq_sta->active_siso_rate |= ht_cap->mcs.rx_mask[0] & 0x1;
+		lq_sta->active_siso_rate &= ~((u16)0x2);
+		lq_sta->active_siso_rate <<= IWL_FIRST_OFDM_RATE;
+
+		/* Same here */
+		lq_sta->active_mimo2_rate = ht_cap->mcs.rx_mask[1] << 1;
+		lq_sta->active_mimo2_rate |= ht_cap->mcs.rx_mask[1] & 0x1;
+		lq_sta->active_mimo2_rate &= ~((u16)0x2);
+		lq_sta->active_mimo2_rate <<= IWL_FIRST_OFDM_RATE;
+
+		lq_sta->is_vht = false;
+	} else {
+		int highest_mcs = rs_vht_highest_rx_mcs_index(vht_cap, 1);
+		if (highest_mcs >= IWL_RATE_MCS_0_INDEX) {
+			for (i = IWL_RATE_MCS_0_INDEX; i <= highest_mcs; i++) {
+				if (i == IWL_RATE_9M_INDEX)
+					continue;
+
+				lq_sta->active_siso_rate |= BIT(i);
+			}
+		}
 
-	/* Same here */
-	lq_sta->active_mimo2_rate = ht_cap->mcs.rx_mask[1] << 1;
-	lq_sta->active_mimo2_rate |= ht_cap->mcs.rx_mask[1] & 0x1;
-	lq_sta->active_mimo2_rate &= ~((u16)0x2);
-	lq_sta->active_mimo2_rate <<= IWL_FIRST_OFDM_RATE;
+		highest_mcs = rs_vht_highest_rx_mcs_index(vht_cap, 2);
+		if (highest_mcs >= IWL_RATE_MCS_0_INDEX) {
+			for (i = IWL_RATE_MCS_0_INDEX; i <= highest_mcs; i++) {
+				if (i == IWL_RATE_9M_INDEX)
+					continue;
+
+				lq_sta->active_mimo2_rate |= BIT(i);
+			}
+		}
+
+		/* TODO: avoid MCS9 in 20Mhz which isn't valid for 11ac */
+		lq_sta->is_vht = true;
+	}
 
 	IWL_DEBUG_RATE(mvm,
-		       "SISO-RATE=%X MIMO2-RATE=%X\n",
+		       "SISO-RATE=%X MIMO2-RATE=%X VHT=%d\n",
 		       lq_sta->active_siso_rate,
-		       lq_sta->active_mimo2_rate);
+		       lq_sta->active_mimo2_rate,
+		       lq_sta->is_vht);
 
 	/* These values will be overridden later */
 	lq_sta->lq.single_stream_ant_msk =
@@ -2406,7 +2539,6 @@ static void rs_fill_link_cmd(struct iwl_mvm *mvm,
 		rs_get_tbl_info_from_mcs(new_rate, lq_sta->band, &tbl_type,
 					 &rate_idx);
 
-
 		/* Indicate to uCode which entries might be MIMO.
 		 * If initial rate was MIMO, this will finally end up
 		 * as (IWL_HT_NUMBER_TRY * 2), after 2nd pass, otherwise 0. */
@@ -2432,7 +2564,9 @@ static void rs_fill_link_cmd(struct iwl_mvm *mvm,
 		}
 
 		/* Don't allow HT rates after next pass.
-		 * rs_get_lower_rate() will change type to LQ_A or LQ_G. */
+		 * rs_get_lower_rate() will change type to LQ_LEGACY_A
+		 * or LQ_LEGACY_G.
+		 */
 		use_ht_possible = 0;
 
 		/* Override next rate if needed for debug purposes */
@@ -2563,12 +2697,15 @@ static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file,
 	    (iwl_fw_valid_tx_ant(mvm->fw) & ANT_B) ? "ANT_B," : "",
 	    (iwl_fw_valid_tx_ant(mvm->fw) & ANT_C) ? "ANT_C" : "");
 	desc += sprintf(buff+desc, "lq type %s\n",
-	   (is_legacy(tbl->lq_type)) ? "legacy" : "HT");
-	if (is_Ht(tbl->lq_type)) {
+			(is_legacy(tbl->lq_type)) ? "legacy" :
+			is_vht(tbl->lq_type) ? "VHT" : "HT");
+	if (is_ht(tbl->lq_type)) {
 		desc += sprintf(buff+desc, " %s",
 		   (is_siso(tbl->lq_type)) ? "SISO" : "MIMO2");
 		   desc += sprintf(buff+desc, " %s",
-		   (tbl->is_ht40) ? "40MHz" : "20MHz");
+				   (is_ht20(tbl)) ? "20MHz" :
+				   (is_ht40(tbl)) ? "40MHz" :
+				   (is_ht80(tbl)) ? "80Mhz" : "BAD BW");
 		   desc += sprintf(buff+desc, " %s %s %s\n",
 				   (tbl->is_SGI) ? "SGI" : "",
 		   (lq_sta->is_green) ? "GF enabled" : "",
@@ -2630,7 +2767,7 @@ static ssize_t rs_sta_dbgfs_stats_table_read(struct file *file,
 	int desc = 0;
 	int i, j;
 	ssize_t ret;
-
+	struct iwl_scale_tbl_info *tbl;
 	struct iwl_lq_sta *lq_sta = file->private_data;
 
 	buff = kmalloc(1024, GFP_KERNEL);
@@ -2638,21 +2775,24 @@ static ssize_t rs_sta_dbgfs_stats_table_read(struct file *file,
 		return -ENOMEM;
 
 	for (i = 0; i < LQ_SIZE; i++) {
+		tbl = &(lq_sta->lq_info[i]);
 		desc += sprintf(buff+desc,
-				"%s type=%d SGI=%d HT40=%d DUP=0 GF=%d\n"
+				"%s type=%d SGI=%d BW=%s DUP=0 GF=%d\n"
 				"rate=0x%X\n",
 				lq_sta->active_tbl == i ? "*" : "x",
-				lq_sta->lq_info[i].lq_type,
-				lq_sta->lq_info[i].is_SGI,
-				lq_sta->lq_info[i].is_ht40,
+				tbl->lq_type,
+				tbl->is_SGI,
+				is_ht20(tbl) ? "20Mhz" :
+				is_ht40(tbl) ? "40Mhz" :
+				is_ht80(tbl) ? "80Mhz" : "ERR",
 				lq_sta->is_green,
-				lq_sta->lq_info[i].current_rate);
+				tbl->current_rate);
 		for (j = 0; j < IWL_RATE_COUNT; j++) {
 			desc += sprintf(buff+desc,
 				"counter=%d success=%d %%=%d\n",
-				lq_sta->lq_info[i].win[j].counter,
-				lq_sta->lq_info[i].win[j].success_counter,
-				lq_sta->lq_info[i].win[j].success_ratio);
+				tbl->win[j].counter,
+				tbl->win[j].success_counter,
+				tbl->win[j].success_ratio);
 		}
 	}
 	ret = simple_read_from_buffer(user_buf, count, ppos, buff, desc);
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.h b/drivers/net/wireless/iwlwifi/mvm/rs.h
index 1e47a0c19b75..4709b4395c01 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.h
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.h
@@ -35,9 +35,11 @@
 #include "iwl-trans.h"
 
 struct iwl_rs_rate_info {
-	u8 plcp;	/* uCode API:  IWL_RATE_6M_PLCP, etc. */
-	u8 plcp_siso;	/* uCode API:  IWL_RATE_SISO_6M_PLCP, etc. */
-	u8 plcp_mimo2;	/* uCode API:  IWL_RATE_MIMO2_6M_PLCP, etc. */
+	u8 plcp;	  /* uCode API:  IWL_RATE_6M_PLCP, etc. */
+	u8 plcp_ht_siso;  /* uCode API:  IWL_RATE_SISO_6M_PLCP, etc. */
+	u8 plcp_ht_mimo2; /* uCode API:  IWL_RATE_MIMO2_6M_PLCP, etc. */
+	u8 plcp_vht_siso;
+	u8 plcp_vht_mimo2;
 	u8 prev_rs;      /* previous rate used in rs algo */
 	u8 next_rs;      /* next rate used in rs algo */
 };
@@ -83,35 +85,52 @@ enum {
 #define	IWL_RATE_11M_MASK  (1 << IWL_RATE_11M_INDEX)
 
 
-/* uCode API values for OFDM high-throughput (HT) bit rates */
+/* uCode API values for HT/VHT bit rates */
 enum {
-	IWL_RATE_SISO_6M_PLCP = 0,
-	IWL_RATE_SISO_12M_PLCP = 1,
-	IWL_RATE_SISO_18M_PLCP = 2,
-	IWL_RATE_SISO_24M_PLCP = 3,
-	IWL_RATE_SISO_36M_PLCP = 4,
-	IWL_RATE_SISO_48M_PLCP = 5,
-	IWL_RATE_SISO_54M_PLCP = 6,
-	IWL_RATE_SISO_60M_PLCP = 7,
-	IWL_RATE_MIMO2_6M_PLCP  = 0x8,
-	IWL_RATE_MIMO2_12M_PLCP = 0x9,
-	IWL_RATE_MIMO2_18M_PLCP = 0xa,
-	IWL_RATE_MIMO2_24M_PLCP = 0xb,
-	IWL_RATE_MIMO2_36M_PLCP = 0xc,
-	IWL_RATE_MIMO2_48M_PLCP = 0xd,
-	IWL_RATE_MIMO2_54M_PLCP = 0xe,
-	IWL_RATE_MIMO2_60M_PLCP = 0xf,
-	IWL_RATE_MIMO3_6M_PLCP  = 0x10,
-	IWL_RATE_MIMO3_12M_PLCP = 0x11,
-	IWL_RATE_MIMO3_18M_PLCP = 0x12,
-	IWL_RATE_MIMO3_24M_PLCP = 0x13,
-	IWL_RATE_MIMO3_36M_PLCP = 0x14,
-	IWL_RATE_MIMO3_48M_PLCP = 0x15,
-	IWL_RATE_MIMO3_54M_PLCP = 0x16,
-	IWL_RATE_MIMO3_60M_PLCP = 0x17,
-	IWL_RATE_SISO_INVM_PLCP,
-	IWL_RATE_MIMO2_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP,
-	IWL_RATE_MIMO3_INVM_PLCP = IWL_RATE_SISO_INVM_PLCP,
+	IWL_RATE_HT_SISO_MCS_0_PLCP = 0,
+	IWL_RATE_HT_SISO_MCS_1_PLCP = 1,
+	IWL_RATE_HT_SISO_MCS_2_PLCP = 2,
+	IWL_RATE_HT_SISO_MCS_3_PLCP = 3,
+	IWL_RATE_HT_SISO_MCS_4_PLCP = 4,
+	IWL_RATE_HT_SISO_MCS_5_PLCP = 5,
+	IWL_RATE_HT_SISO_MCS_6_PLCP = 6,
+	IWL_RATE_HT_SISO_MCS_7_PLCP = 7,
+	IWL_RATE_HT_MIMO2_MCS_0_PLCP = 0x8,
+	IWL_RATE_HT_MIMO2_MCS_1_PLCP = 0x9,
+	IWL_RATE_HT_MIMO2_MCS_2_PLCP = 0xA,
+	IWL_RATE_HT_MIMO2_MCS_3_PLCP = 0xB,
+	IWL_RATE_HT_MIMO2_MCS_4_PLCP = 0xC,
+	IWL_RATE_HT_MIMO2_MCS_5_PLCP = 0xD,
+	IWL_RATE_HT_MIMO2_MCS_6_PLCP = 0xE,
+	IWL_RATE_HT_MIMO2_MCS_7_PLCP = 0xF,
+	IWL_RATE_VHT_SISO_MCS_0_PLCP = 0,
+	IWL_RATE_VHT_SISO_MCS_1_PLCP = 1,
+	IWL_RATE_VHT_SISO_MCS_2_PLCP = 2,
+	IWL_RATE_VHT_SISO_MCS_3_PLCP = 3,
+	IWL_RATE_VHT_SISO_MCS_4_PLCP = 4,
+	IWL_RATE_VHT_SISO_MCS_5_PLCP = 5,
+	IWL_RATE_VHT_SISO_MCS_6_PLCP = 6,
+	IWL_RATE_VHT_SISO_MCS_7_PLCP = 7,
+	IWL_RATE_VHT_SISO_MCS_8_PLCP = 8,
+	IWL_RATE_VHT_SISO_MCS_9_PLCP = 9,
+	IWL_RATE_VHT_MIMO2_MCS_0_PLCP = 0x10,
+	IWL_RATE_VHT_MIMO2_MCS_1_PLCP = 0x11,
+	IWL_RATE_VHT_MIMO2_MCS_2_PLCP = 0x12,
+	IWL_RATE_VHT_MIMO2_MCS_3_PLCP = 0x13,
+	IWL_RATE_VHT_MIMO2_MCS_4_PLCP = 0x14,
+	IWL_RATE_VHT_MIMO2_MCS_5_PLCP = 0x15,
+	IWL_RATE_VHT_MIMO2_MCS_6_PLCP = 0x16,
+	IWL_RATE_VHT_MIMO2_MCS_7_PLCP = 0x17,
+	IWL_RATE_VHT_MIMO2_MCS_8_PLCP = 0x18,
+	IWL_RATE_VHT_MIMO2_MCS_9_PLCP = 0x19,
+	IWL_RATE_HT_SISO_MCS_INV_PLCP,
+	IWL_RATE_HT_MIMO2_MCS_INV_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP,
+	IWL_RATE_VHT_SISO_MCS_INV_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP,
+	IWL_RATE_VHT_MIMO2_MCS_INV_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP,
+	IWL_RATE_HT_SISO_MCS_8_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP,
+	IWL_RATE_HT_SISO_MCS_9_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP,
+	IWL_RATE_HT_MIMO2_MCS_8_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP,
+	IWL_RATE_HT_MIMO2_MCS_9_PLCP = IWL_RATE_HT_SISO_MCS_INV_PLCP,
 };
 
 #define IWL_RATES_MASK ((1 << IWL_RATE_COUNT) - 1)
@@ -196,20 +215,31 @@ enum {
 
 enum iwl_table_type {
 	LQ_NONE,
-	LQ_G,		/* legacy types */
-	LQ_A,
-	LQ_SISO,	/* high-throughput types */
-	LQ_MIMO2,
+	LQ_LEGACY_G,	/* legacy types */
+	LQ_LEGACY_A,
+	LQ_HT_SISO,	/* HT types */
+	LQ_HT_MIMO2,
+	LQ_VHT_SISO,    /* VHT types */
+	LQ_VHT_MIMO2,
 	LQ_MAX,
 };
 
-#define is_legacy(tbl) (((tbl) == LQ_G) || ((tbl) == LQ_A))
-#define is_siso(tbl) ((tbl) == LQ_SISO)
-#define is_mimo2(tbl) ((tbl) == LQ_MIMO2)
-#define is_mimo(tbl) is_mimo2(tbl)
-#define is_Ht(tbl) (is_siso(tbl) || is_mimo(tbl))
-#define is_a_band(tbl) ((tbl) == LQ_A)
-#define is_g_and(tbl) ((tbl) == LQ_G)
+#define is_legacy(tbl) (((tbl) == LQ_LEGACY_G) || ((tbl) == LQ_LEGACY_A))
+#define is_ht_siso(tbl) ((tbl) == LQ_HT_SISO)
+#define is_ht_mimo2(tbl) ((tbl) == LQ_HT_MIMO2)
+#define is_vht_siso(tbl) ((tbl) == LQ_VHT_SISO)
+#define is_vht_mimo2(tbl) ((tbl) == LQ_VHT_MIMO2)
+#define is_siso(tbl) (is_ht_siso(tbl) || is_vht_siso(tbl))
+#define is_mimo2(tbl) (is_ht_mimo2(tbl) || is_vht_mimo2(tbl))
+#define is_mimo(tbl) (is_mimo2(tbl))
+#define is_ht(tbl) (is_ht_siso(tbl) || is_ht_mimo2(tbl))
+#define is_vht(tbl) (is_vht_siso(tbl) || is_vht_mimo2(tbl))
+#define is_a_band(tbl) ((tbl) == LQ_LEGACY_A)
+#define is_g_band(tbl) ((tbl) == LQ_LEGACY_G)
+
+#define is_ht20(tbl) (tbl->bw == RATE_MCS_CHAN_WIDTH_20)
+#define is_ht40(tbl) (tbl->bw == RATE_MCS_CHAN_WIDTH_40)
+#define is_ht80(tbl) (tbl->bw == RATE_MCS_CHAN_WIDTH_80)
 
 #define IWL_MAX_MCS_DISPLAY_SIZE	12
 
@@ -240,7 +270,7 @@ struct iwl_scale_tbl_info {
 	enum iwl_table_type lq_type;
 	u8 ant_type;
 	u8 is_SGI;	/* 1 = short guard interval */
-	u8 is_ht40;	/* 1 = 40 MHz channel width */
+	u32 bw;	        /* channel bandwidth; RATE_MCS_CHAN_WIDTH_XX */
 	u8 action;	/* change modulation; IWL_[LEGACY/SISO/MIMO]_SWITCH_* */
 	u8 max_search;	/* maximun number of tables we can search */
 	s32 *expected_tpt;	/* throughput metrics; expected_tpt_G, etc. */
@@ -271,6 +301,7 @@ struct iwl_lq_sta {
 
 	u8 action_counter;	/* # mode-switch actions tried */
 	u8 is_green;
+	bool is_vht;
 	enum ieee80211_band band;
 
 	/* The following are bitmaps of rates; IWL_RATE_6M_MASK, etc. */
diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c
index 1ef70d0bd9e2..1606e1da5b0c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tx.c
@@ -511,16 +511,10 @@ const char *iwl_mvm_get_tx_fail_reason(u32 status)
 }
 #endif /* CONFIG_IWLWIFI_DEBUG */
 
-/**
- * translate ucode response to mac80211 tx status control values
- */
-static void iwl_mvm_hwrate_to_tx_control(u32 rate_n_flags,
-					 struct ieee80211_tx_info *info)
+void iwl_mvm_hwrate_to_tx_rate(u32 rate_n_flags,
+			       enum ieee80211_band band,
+			       struct ieee80211_tx_rate *r)
 {
-	struct ieee80211_tx_rate *r = &info->status.rates[0];
-
-	info->status.antenna =
-		((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS);
 	if (rate_n_flags & RATE_HT_MCS_GF_MSK)
 		r->flags |= IEEE80211_TX_RC_GREEN_FIELD;
 	switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
@@ -549,10 +543,23 @@ static void iwl_mvm_hwrate_to_tx_control(u32 rate_n_flags,
 		r->flags |= IEEE80211_TX_RC_VHT_MCS;
 	} else {
 		r->idx = iwl_mvm_legacy_rate_to_mac80211_idx(rate_n_flags,
-							     info->band);
+							     band);
 	}
 }
 
+/**
+ * translate ucode response to mac80211 tx status control values
+ */
+static void iwl_mvm_hwrate_to_tx_status(u32 rate_n_flags,
+					struct ieee80211_tx_info *info)
+{
+	struct ieee80211_tx_rate *r = &info->status.rates[0];
+
+	info->status.antenna =
+		((rate_n_flags & RATE_MCS_ANT_ABC_MSK) >> RATE_MCS_ANT_POS);
+	iwl_mvm_hwrate_to_tx_rate(rate_n_flags, info->band, r);
+}
+
 static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm,
 				     struct iwl_rx_packet *pkt)
 {
@@ -602,8 +609,8 @@ static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm,
 		}
 
 		info->status.rates[0].count = tx_resp->failure_frame + 1;
-		iwl_mvm_hwrate_to_tx_control(le32_to_cpu(tx_resp->initial_rate),
-					     info);
+		iwl_mvm_hwrate_to_tx_status(le32_to_cpu(tx_resp->initial_rate),
+					    info);
 
 		/* Single frame failure in an AMPDU queue => send BAR */
 		if (txq_id >= IWL_MVM_FIRST_AGG_QUEUE &&
@@ -900,8 +907,8 @@ int iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 			info->flags |= IEEE80211_TX_STAT_AMPDU;
 			info->status.ampdu_ack_len = ba_notif->txed_2_done;
 			info->status.ampdu_len = ba_notif->txed;
-			iwl_mvm_hwrate_to_tx_control(tid_data->rate_n_flags,
-						     info);
+			iwl_mvm_hwrate_to_tx_status(tid_data->rate_n_flags,
+						    info);
 		}
 	}
 
-- 
cgit 


From 6a524f487c61a08ec7552fcf004e8b3fcf6badf0 Mon Sep 17 00:00:00 2001
From: Eyal Shapira <eyal@wizery.com>
Date: Sun, 11 Aug 2013 20:27:18 +0300
Subject: iwlwifi: mvm: remove GF support in rs

mvm doesn't support HT GF so drop all relevant code in rs.

Signed-off-by: Eyal Shapira <eyal@wizery.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/rs.c | 90 ++++++++---------------------------
 drivers/net/wireless/iwlwifi/mvm/rs.h |  1 -
 2 files changed, 19 insertions(+), 72 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 9dfb06515521..742aeab7745d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -449,8 +449,7 @@ static int rs_collect_tx_data(struct iwl_scale_tbl_info *tbl,
  */
 /* FIXME:RS:remove this function and put the flags statically in the table */
 static u32 rate_n_flags_from_tbl(struct iwl_mvm *mvm,
-				 struct iwl_scale_tbl_info *tbl,
-				 int index, u8 use_green)
+				 struct iwl_scale_tbl_info *tbl, int index)
 {
 	u32 rate_n_flags = 0;
 
@@ -498,14 +497,6 @@ static u32 rate_n_flags_from_tbl(struct iwl_mvm *mvm,
 	if (tbl->is_SGI)
 		rate_n_flags |= RATE_MCS_SGI_MSK;
 
-	/* TODO: remove GF completely ? */
-	if (use_green) {
-		rate_n_flags |= RATE_HT_MCS_GF_MSK;
-		if (is_ht_siso(tbl->lq_type) && tbl->is_SGI) {
-			rate_n_flags &= ~RATE_MCS_SGI_MSK;
-			IWL_ERR(mvm, "GF was set with SGI:SISO\n");
-		}
-	}
 	return rate_n_flags;
 }
 
@@ -617,22 +608,6 @@ static int rs_toggle_antenna(u32 valid_ant, u32 *rate_n_flags,
 	return 1;
 }
 
-/**
- * Green-field mode is valid if the station supports it and
- * there are no non-GF stations present in the BSS.
- */
-static bool rs_use_green(struct ieee80211_sta *sta)
-{
-	/*
-	 * There's a bug somewhere in this code that causes the
-	 * scaling to get stuck because GF+SGI can't be combined
-	 * in SISO rates. Until we find that bug, disable GF, it
-	 * has only limited benefit and we still interoperate with
-	 * GF APs since we can always receive GF transmissions.
-	 */
-	return false;
-}
-
 /**
  * rs_get_supported_rates - get the available rates
  *
@@ -719,7 +694,6 @@ static u32 rs_get_lower_rate(struct iwl_lq_sta *lq_sta,
 	u16 rate_mask;
 	u16 high_low;
 	u8 switch_to_legacy = 0;
-	u8 is_green = lq_sta->is_green;
 	struct iwl_mvm *mvm = lq_sta->drv;
 
 	/* check if we need to switch from HT to legacy rates.
@@ -768,7 +742,7 @@ static u32 rs_get_lower_rate(struct iwl_lq_sta *lq_sta,
 		low = scale_index;
 
 out:
-	return rate_n_flags_from_tbl(lq_sta->drv, tbl, low, is_green);
+	return rate_n_flags_from_tbl(lq_sta->drv, tbl, low);
 }
 
 /*
@@ -1246,7 +1220,6 @@ static int rs_switch_to_mimo2(struct iwl_mvm *mvm,
 {
 	u16 rate_mask;
 	s32 rate;
-	s8 is_green = lq_sta->is_green;
 
 	if (!sta->ht_cap.ht_supported)
 		return -1;
@@ -1277,10 +1250,10 @@ static int rs_switch_to_mimo2(struct iwl_mvm *mvm,
 			       rate, rate_mask);
 		return -1;
 	}
-	tbl->current_rate = rate_n_flags_from_tbl(mvm, tbl, rate, is_green);
+	tbl->current_rate = rate_n_flags_from_tbl(mvm, tbl, rate);
 
-	IWL_DEBUG_RATE(mvm, "LQ: Switch to new mcs %X index is green %X\n",
-		       tbl->current_rate, is_green);
+	IWL_DEBUG_RATE(mvm, "LQ: Switch to new mcs %X index\n",
+		       tbl->current_rate);
 	return 0;
 }
 
@@ -1293,7 +1266,6 @@ static int rs_switch_to_siso(struct iwl_mvm *mvm,
 			     struct iwl_scale_tbl_info *tbl, int index)
 {
 	u16 rate_mask;
-	u8 is_green = lq_sta->is_green;
 	s32 rate;
 
 	if (!sta->ht_cap.ht_supported)
@@ -1306,9 +1278,6 @@ static int rs_switch_to_siso(struct iwl_mvm *mvm,
 	tbl->max_search = IWL_MAX_SEARCH;
 	rate_mask = lq_sta->active_siso_rate;
 
-	if (is_green)
-		tbl->is_SGI = 0; /*11n spec: no SGI in SISO+Greenfield*/
-
 	rs_set_bw_from_sta(tbl, sta);
 	rs_set_expected_tpt_table(lq_sta, tbl);
 	rate = rs_get_best_rate(mvm, lq_sta, tbl, rate_mask, index);
@@ -1320,9 +1289,9 @@ static int rs_switch_to_siso(struct iwl_mvm *mvm,
 			       rate, rate_mask);
 		return -1;
 	}
-	tbl->current_rate = rate_n_flags_from_tbl(mvm, tbl, rate, is_green);
-	IWL_DEBUG_RATE(mvm, "LQ: Switch to new mcs %X index is green %X\n",
-		       tbl->current_rate, is_green);
+	tbl->current_rate = rate_n_flags_from_tbl(mvm, tbl, rate);
+	IWL_DEBUG_RATE(mvm, "LQ: Switch to new mcs %X index\n",
+		       tbl->current_rate);
 	return 0;
 }
 
@@ -1431,7 +1400,6 @@ static int rs_move_siso_to_other(struct iwl_mvm *mvm,
 				 struct iwl_lq_sta *lq_sta,
 				 struct ieee80211_sta *sta, int index)
 {
-	u8 is_green = lq_sta->is_green;
 	struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
 	struct iwl_scale_tbl_info *search_tbl =
 				&(lq_sta->lq_info[(1 - lq_sta->active_tbl)]);
@@ -1513,13 +1481,6 @@ static int rs_move_siso_to_other(struct iwl_mvm *mvm,
 			IWL_DEBUG_RATE(mvm, "LQ: SISO toggle SGI/NGI\n");
 
 			memcpy(search_tbl, tbl, sz);
-			if (is_green) {
-				if (!tbl->is_SGI)
-					break;
-				else
-					IWL_ERR(mvm,
-						"SGI was set in GF+SISO\n");
-			}
 			search_tbl->is_SGI = !tbl->is_SGI;
 			rs_set_expected_tpt_table(lq_sta, search_tbl);
 			if (tbl->is_SGI) {
@@ -1528,8 +1489,7 @@ static int rs_move_siso_to_other(struct iwl_mvm *mvm,
 					break;
 			}
 			search_tbl->current_rate =
-				rate_n_flags_from_tbl(mvm, search_tbl,
-						      index, is_green);
+				rate_n_flags_from_tbl(mvm, search_tbl, index);
 			update_search_tbl_counter = 1;
 			goto out;
 		default:
@@ -1559,7 +1519,6 @@ static int rs_move_mimo2_to_other(struct iwl_mvm *mvm,
 				 struct iwl_lq_sta *lq_sta,
 				 struct ieee80211_sta *sta, int index)
 {
-	s8 is_green = lq_sta->is_green;
 	struct iwl_scale_tbl_info *tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
 	struct iwl_scale_tbl_info *search_tbl =
 				&(lq_sta->lq_info[(1 - lq_sta->active_tbl)]);
@@ -1640,8 +1599,7 @@ static int rs_move_mimo2_to_other(struct iwl_mvm *mvm,
 					break;
 			}
 			search_tbl->current_rate =
-				rate_n_flags_from_tbl(mvm, search_tbl,
-						      index, is_green);
+				rate_n_flags_from_tbl(mvm, search_tbl, index);
 			update_search_tbl_counter = 1;
 			goto out;
 		default:
@@ -1752,12 +1710,12 @@ static void rs_stay_in_table(struct iwl_lq_sta *lq_sta, bool force_search)
 static void rs_update_rate_tbl(struct iwl_mvm *mvm,
 			       struct iwl_lq_sta *lq_sta,
 			       struct iwl_scale_tbl_info *tbl,
-			       int index, u8 is_green)
+			       int index)
 {
 	u32 rate;
 
 	/* Update uCode's rate table. */
-	rate = rate_n_flags_from_tbl(mvm, tbl, index, is_green);
+	rate = rate_n_flags_from_tbl(mvm, tbl, index);
 	rs_fill_link_cmd(mvm, lq_sta, rate);
 	iwl_mvm_send_lq_cmd(mvm, &lq_sta->lq, CMD_ASYNC, false);
 }
@@ -1802,7 +1760,6 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm,
 	u8 update_lq = 0;
 	struct iwl_scale_tbl_info *tbl, *tbl1;
 	u16 rate_scale_index_msk = 0;
-	u8 is_green = 0;
 	u8 active_tbl = 0;
 	u8 done_search = 0;
 	u16 high_low;
@@ -1844,11 +1801,6 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm,
 		active_tbl = 1 - lq_sta->active_tbl;
 
 	tbl = &(lq_sta->lq_info[active_tbl]);
-	if (is_legacy(tbl->lq_type))
-		lq_sta->is_green = 0;
-	else
-		lq_sta->is_green = rs_use_green(sta);
-	is_green = lq_sta->is_green;
 
 	/* current tx rate */
 	index = lq_sta->last_txrate_idx;
@@ -1887,7 +1839,7 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm,
 			tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
 			/* get "active" rate info */
 			index = iwl_hwrate_to_plcp_idx(tbl->current_rate);
-			rs_update_rate_tbl(mvm, lq_sta, tbl, index, is_green);
+			rs_update_rate_tbl(mvm, lq_sta, tbl, index);
 		}
 		return;
 	}
@@ -2122,7 +2074,7 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm,
 lq_update:
 	/* Replace uCode's rate table for the destination station. */
 	if (update_lq)
-		rs_update_rate_tbl(mvm, lq_sta, tbl, index, is_green);
+		rs_update_rate_tbl(mvm, lq_sta, tbl, index);
 
 	rs_stay_in_table(lq_sta, false);
 
@@ -2203,7 +2155,7 @@ lq_update:
 	}
 
 out:
-	tbl->current_rate = rate_n_flags_from_tbl(mvm, tbl, index, is_green);
+	tbl->current_rate = rate_n_flags_from_tbl(mvm, tbl, index);
 	lq_sta->last_txrate_idx = index;
 }
 
@@ -2230,7 +2182,6 @@ static void rs_initialize_lq(struct iwl_mvm *mvm,
 	int rate_idx;
 	int i;
 	u32 rate;
-	u8 use_green = rs_use_green(sta);
 	u8 active_tbl = 0;
 	u8 valid_tx_ant;
 
@@ -2262,7 +2213,7 @@ static void rs_initialize_lq(struct iwl_mvm *mvm,
 	if (!rs_is_valid_ant(valid_tx_ant, tbl->ant_type))
 		rs_toggle_antenna(valid_tx_ant, &rate, tbl);
 
-	rate = rate_n_flags_from_tbl(mvm, tbl, rate_idx, use_green);
+	rate = rate_n_flags_from_tbl(mvm, tbl, rate_idx);
 	tbl->current_rate = rate;
 	rs_set_expected_tpt_table(lq_sta, tbl);
 	rs_fill_link_cmd(NULL, lq_sta, rate);
@@ -2379,7 +2330,6 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 
 	lq_sta->max_rate_idx = -1;
 	lq_sta->missed_rate_counter = IWL_MISSED_RATE_MAX;
-	lq_sta->is_green = rs_use_green(sta);
 	lq_sta->band = sband->band;
 	/*
 	 * active legacy rates as per supported rates bitmap
@@ -2706,10 +2656,9 @@ static ssize_t rs_sta_dbgfs_scale_table_read(struct file *file,
 				   (is_ht20(tbl)) ? "20MHz" :
 				   (is_ht40(tbl)) ? "40MHz" :
 				   (is_ht80(tbl)) ? "80Mhz" : "BAD BW");
-		   desc += sprintf(buff+desc, " %s %s %s\n",
+		   desc += sprintf(buff+desc, " %s %s\n",
 				   (tbl->is_SGI) ? "SGI" : "",
-		   (lq_sta->is_green) ? "GF enabled" : "",
-		   (lq_sta->is_agg) ? "AGG on" : "");
+				   (lq_sta->is_agg) ? "AGG on" : "");
 	}
 	desc += sprintf(buff+desc, "last tx rate=0x%X\n",
 			lq_sta->last_rate_n_flags);
@@ -2777,7 +2726,7 @@ static ssize_t rs_sta_dbgfs_stats_table_read(struct file *file,
 	for (i = 0; i < LQ_SIZE; i++) {
 		tbl = &(lq_sta->lq_info[i]);
 		desc += sprintf(buff+desc,
-				"%s type=%d SGI=%d BW=%s DUP=0 GF=%d\n"
+				"%s type=%d SGI=%d BW=%s DUP=0\n"
 				"rate=0x%X\n",
 				lq_sta->active_tbl == i ? "*" : "x",
 				tbl->lq_type,
@@ -2785,7 +2734,6 @@ static ssize_t rs_sta_dbgfs_stats_table_read(struct file *file,
 				is_ht20(tbl) ? "20Mhz" :
 				is_ht40(tbl) ? "40Mhz" :
 				is_ht80(tbl) ? "80Mhz" : "ERR",
-				lq_sta->is_green,
 				tbl->current_rate);
 		for (j = 0; j < IWL_RATE_COUNT; j++) {
 			desc += sprintf(buff+desc,
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.h b/drivers/net/wireless/iwlwifi/mvm/rs.h
index 4709b4395c01..721e6b31b712 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.h
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.h
@@ -300,7 +300,6 @@ struct iwl_lq_sta {
 	u64 flush_timer;	/* time staying in mode before new search */
 
 	u8 action_counter;	/* # mode-switch actions tried */
-	u8 is_green;
 	bool is_vht;
 	enum ieee80211_band band;
 
-- 
cgit 


From 0e9d84ea89a588a6ed7b4e9809cd4a8af0bb6a88 Mon Sep 17 00:00:00 2001
From: Djalal Harouni <tixxdz@opendz.org>
Date: Sat, 24 Aug 2013 14:35:53 +0100
Subject: iwlwifi: mvm: make debugfs write() operations write up to count bytes

Some debugfs write() operations of the MVM Firmware will ignore the
count argument, and will copy more bytes than what was specified.
Fix this by getting the right count of bytes.

This will honor restrictions put on the number of bytes to write and
avoid strcmp() calls on garbage data.

Signed-off-by: Djalal Harouni <tixxdz@opendz.org>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/debugfs.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index 1e9e6f384a82..26c53b37007e 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -257,7 +257,8 @@ static ssize_t iwl_dbgfs_power_down_allow_write(struct file *file,
 	if (!mvm->ucode_loaded)
 		return -EIO;
 
-	if (copy_from_user(buf, user_buf, sizeof(buf)))
+	count = min_t(size_t, count, sizeof(buf) - 1);
+	if (copy_from_user(buf, user_buf, count))
 		return -EFAULT;
 
 	if (sscanf(buf, "%d", &allow) != 1)
@@ -281,7 +282,8 @@ static ssize_t iwl_dbgfs_power_down_d3_allow_write(struct file *file,
 	char buf[8] = {};
 	int allow;
 
-	if (copy_from_user(buf, user_buf, sizeof(buf)))
+	count = min_t(size_t, count, sizeof(buf) - 1);
+	if (copy_from_user(buf, user_buf, count))
 		return -EFAULT;
 
 	if (sscanf(buf, "%d", &allow) != 1)
@@ -371,7 +373,8 @@ static ssize_t iwl_dbgfs_pm_params_write(struct file *file,
 	int val;
 	int ret;
 
-	if (copy_from_user(buf, user_buf, sizeof(buf)))
+	count = min_t(size_t, count, sizeof(buf) - 1);
+	if (copy_from_user(buf, user_buf, count))
 		return -EFAULT;
 
 	if (!strncmp("keep_alive=", buf, 11)) {
@@ -1021,7 +1024,8 @@ static ssize_t iwl_dbgfs_d3_sram_write(struct file *file,
 	char buf[8] = {};
 	int store;
 
-	if (copy_from_user(buf, user_buf, sizeof(buf)))
+	count = min_t(size_t, count, sizeof(buf) - 1);
+	if (copy_from_user(buf, user_buf, count))
 		return -EFAULT;
 
 	if (sscanf(buf, "%d", &store) != 1)
-- 
cgit 


From 39149911ba28d17b4657a9a65b3dc8ba54145ca0 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Sun, 14 Jul 2013 13:40:21 +0300
Subject: iwlwifi: mvm: don't use reduced Tx power when not applicable

When we have only one antenna for BT and WiFi, reduced Tx
power is irrelevant.
Also, in loose scheme, we should not use reduced Tx power
nor set the control mask to Tx power.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/bt-coex.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index 6473828f761e..908a8a9ca564 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -288,6 +288,11 @@ iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
 
 	ret = BT_COEX_TX_DIS_LUT;
 
+	if (mvm->cfg->bt_shared_single_ant) {
+		rcu_read_unlock();
+		return ret;
+	}
+
 	phy_ctx_id = *((u16 *)chanctx_conf->drv_priv);
 
 	if (mvm->last_bt_ci_cmd.primary_ch_phy_id == phy_ctx_id)
@@ -540,6 +545,8 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 		return;
 	}
 
+	data->num_bss_ifaces++;
+
 	/* we are now a STA / P2P Client, and take associated ones only */
 	if (!vif->bss_conf.assoc)
 		return;
@@ -565,10 +572,11 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 	iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX, smps_mode);
 
 	/* don't reduce the Tx power if in loose scheme */
-	if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
+	if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
+	    mvm->cfg->bt_shared_single_ant) {
+		data->reduced_tx_power = false;
 		return;
-
-	data->num_bss_ifaces++;
+	}
 
 	/* reduced Txpower only if BT is on, so ...*/
 	if (le32_to_cpu(data->notif->bt_activity_grading) == BT_OFF) {
@@ -797,7 +805,7 @@ void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 	 * Check if rssi is good enough for reduced Tx power, but not in loose
 	 * scheme.
 	 */
-	if (rssi_event == RSSI_EVENT_LOW ||
+	if (rssi_event == RSSI_EVENT_LOW || mvm->cfg->bt_shared_single_ant ||
 	    iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT)
 		ret = iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id,
 						  false);
-- 
cgit 


From 2de13caebcb7ee78a4ceadb22617ec4bc1b3c776 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Sun, 30 Jun 2013 07:43:28 +0300
Subject: iwlwifi: mvm: BT Coex - adapt debugfs to new API

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/bt-coex.c | 11 ++-----
 drivers/net/wireless/iwlwifi/mvm/debugfs.c | 50 +++++++++++++++++++++++++++---
 drivers/net/wireless/iwlwifi/mvm/mvm.h     |  8 +++++
 3 files changed, 55 insertions(+), 14 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index 908a8a9ca564..a17e2cc2bedb 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -112,20 +112,13 @@ int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm)
 				    &iwl_bt_prio_tbl);
 }
 
-enum iwl_bt_kill_msk {
-	BT_KILL_MSK_DEFAULT,
-	BT_KILL_MSK_SCO_HID_A2DP,
-	BT_KILL_MSK_REDUCED_TXPOW,
-	BT_KILL_MSK_MAX,
-};
-
-static const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX] = {
+const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX] = {
 	[BT_KILL_MSK_DEFAULT] = 0xffff0000,
 	[BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff,
 	[BT_KILL_MSK_REDUCED_TXPOW] = 0,
 };
 
-static const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = {
+const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX] = {
 	[BT_KILL_MSK_DEFAULT] = 0xffff0000,
 	[BT_KILL_MSK_SCO_HID_A2DP] = 0xffffffff,
 	[BT_KILL_MSK_REDUCED_TXPOW] = 0,
diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index 26c53b37007e..e943ee125d23 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -584,15 +584,21 @@ static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
 	BT_MBOX_PRINT(3, UPDATE_REQUEST, true);
 
 	pos += scnprintf(buf+pos, bufsz-pos, "bt_status = %d\n",
-					 notif->bt_status);
+			 notif->bt_status);
 	pos += scnprintf(buf+pos, bufsz-pos, "bt_open_conn = %d\n",
-					 notif->bt_open_conn);
+			 notif->bt_open_conn);
 	pos += scnprintf(buf+pos, bufsz-pos, "bt_traffic_load = %d\n",
-					 notif->bt_traffic_load);
+			 notif->bt_traffic_load);
 	pos += scnprintf(buf+pos, bufsz-pos, "bt_agg_traffic_load = %d\n",
-					 notif->bt_agg_traffic_load);
+			 notif->bt_agg_traffic_load);
 	pos += scnprintf(buf+pos, bufsz-pos, "bt_ci_compliance = %d\n",
-					 notif->bt_ci_compliance);
+			 notif->bt_ci_compliance);
+	pos += scnprintf(buf+pos, bufsz-pos, "primary_ch_lut = %d\n",
+			 le32_to_cpu(notif->primary_ch_lut));
+	pos += scnprintf(buf+pos, bufsz-pos, "secondary_ch_lut = %d\n",
+			 le32_to_cpu(notif->secondary_ch_lut));
+	pos += scnprintf(buf+pos, bufsz-pos, "bt_activity_grading = %d\n",
+			 le32_to_cpu(notif->bt_activity_grading));
 
 	mutex_unlock(&mvm->mutex);
 
@@ -603,6 +609,38 @@ static ssize_t iwl_dbgfs_bt_notif_read(struct file *file, char __user *user_buf,
 }
 #undef BT_MBOX_PRINT
 
+static ssize_t iwl_dbgfs_bt_cmd_read(struct file *file, char __user *user_buf,
+				     size_t count, loff_t *ppos)
+{
+	struct iwl_mvm *mvm = file->private_data;
+	struct iwl_bt_coex_ci_cmd *cmd = &mvm->last_bt_ci_cmd;
+	char buf[256];
+	int bufsz = sizeof(buf);
+	int pos = 0;
+
+	mutex_lock(&mvm->mutex);
+
+	pos += scnprintf(buf+pos, bufsz-pos, "Channel inhibition CMD\n");
+	pos += scnprintf(buf+pos, bufsz-pos,
+		       "\tPrimary Channel Bitmap 0x%016llx Fat: %d\n",
+		       le64_to_cpu(cmd->bt_primary_ci),
+		       !!cmd->co_run_bw_primary);
+	pos += scnprintf(buf+pos, bufsz-pos,
+		       "\tSecondary Channel Bitmap 0x%016llx Fat: %d\n",
+		       le64_to_cpu(cmd->bt_secondary_ci),
+		       !!cmd->co_run_bw_secondary);
+
+	pos += scnprintf(buf+pos, bufsz-pos, "BT Configuration CMD\n");
+	pos += scnprintf(buf+pos, bufsz-pos, "\tACK Kill Mask 0x%08x\n",
+			 iwl_bt_ack_kill_msk[mvm->bt_kill_msk]);
+	pos += scnprintf(buf+pos, bufsz-pos, "\tCTS Kill Mask 0x%08x\n",
+			 iwl_bt_cts_kill_msk[mvm->bt_kill_msk]);
+
+	mutex_unlock(&mvm->mutex);
+
+	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
+}
+
 #define PRINT_STATS_LE32(_str, _val)					\
 			 pos += scnprintf(buf + pos, bufsz - pos,	\
 					  fmt_table, _str,		\
@@ -1120,6 +1158,7 @@ MVM_DEBUGFS_WRITE_FILE_OPS(sta_drain);
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram);
 MVM_DEBUGFS_READ_FILE_OPS(stations);
 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
+MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
 MVM_DEBUGFS_WRITE_FILE_OPS(power_down_allow);
 MVM_DEBUGFS_WRITE_FILE_OPS(power_down_d3_allow);
 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
@@ -1146,6 +1185,7 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
 	MVM_DEBUGFS_ADD_FILE(sram, mvm->debugfs_dir, S_IWUSR | S_IRUSR);
 	MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
 	MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
+	MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
 	MVM_DEBUGFS_ADD_FILE(power_down_allow, mvm->debugfs_dir, S_IWUSR);
 	MVM_DEBUGFS_ADD_FILE(power_down_d3_allow, mvm->debugfs_dir, S_IWUSR);
 	MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 2d65fe2474e9..33dbc7cefeba 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -791,6 +791,14 @@ int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 			   enum ieee80211_rssi_event rssi_event);
 void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
+enum iwl_bt_kill_msk {
+	BT_KILL_MSK_DEFAULT,
+	BT_KILL_MSK_SCO_HID_A2DP,
+	BT_KILL_MSK_REDUCED_TXPOW,
+	BT_KILL_MSK_MAX,
+};
+extern const u32 iwl_bt_ack_kill_msk[BT_KILL_MSK_MAX];
+extern const u32 iwl_bt_cts_kill_msk[BT_KILL_MSK_MAX];
 
 /* beacon filtering */
 #ifdef CONFIG_IWLWIFI_DEBUGFS
-- 
cgit 


From f6fc57756bd8e89687b165280a9bdee290a7850a Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Sun, 8 Sep 2013 08:57:15 +0300
Subject: iwlwifi: mvm: BT Coex - Correctly enable and treat rssi events

Rssi events were enabled on interfaces using 5.2GHz.
Interfaces on 5.2GHz were taken into account while
determining the ACK / CTS kill mask. Fix that.

The last rssi notified to BT Coex was reset every BT Coex
Notification. Since we get a lot of these notifications
from the firmware, we reset the rssi all the time which
means that the bt_rssi_event is called all the time.
Fix that by puting the rssi we pull upon BT Coex
notification into iwl_mvm_vif_bf_data.last_bt_coex_event

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/bt-coex.c | 40 ++++++++++++++++++++++--------
 1 file changed, 30 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index a17e2cc2bedb..7d41a0efd37b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -490,6 +490,20 @@ struct iwl_bt_iterator_data {
 	struct ieee80211_chanctx_conf *secondary;
 };
 
+static inline
+void iwl_mvm_bt_coex_enable_rssi_event(struct iwl_mvm *mvm,
+				       struct ieee80211_vif *vif,
+				       bool enable, int rssi)
+{
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+
+	mvmvif->bf_data.last_bt_coex_event = rssi;
+	mvmvif->bf_data.bt_coex_max_thold =
+		enable ? BT_ENABLE_REDUCED_TXPOWER_THRESHOLD : 0;
+	mvmvif->bf_data.bt_coex_min_thold =
+		enable ? BT_DISABLE_REDUCED_TXPOWER_THRESHOLD : 0;
+}
+
 /* must be called under rcu_read_lock */
 static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 				      struct ieee80211_vif *vif)
@@ -518,6 +532,7 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 		if (vif->type == NL80211_IFTYPE_STATION && vif->bss_conf.assoc)
 			iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_BT_COEX,
 					    smps_mode);
+		iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 		return;
 	}
 
@@ -568,6 +583,7 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 	if (iwl_get_coex_type(mvm, vif) == BT_COEX_LOOSE_LUT ||
 	    mvm->cfg->bt_shared_single_ant) {
 		data->reduced_tx_power = false;
+		iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 		return;
 	}
 
@@ -579,9 +595,7 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 		data->reduced_tx_power = false;
 
 		/* ... and there is no need to get reports on RSSI any more. */
-		mvmvif->bf_data.last_bt_coex_event = 0;
-		mvmvif->bf_data.bt_coex_max_thold = 0;
-		mvmvif->bf_data.bt_coex_min_thold = 0;
+		iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, false, 0);
 		return;
 	}
 
@@ -614,13 +628,7 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 	}
 
 	/* Begin to monitor the RSSI: it may influence the reduced Tx power */
-
-	/* reset previous bt coex event tracking */
-	mvmvif->bf_data.last_bt_coex_event = 0;
-	mvmvif->bf_data.bt_coex_max_thold =
-		BT_ENABLE_REDUCED_TXPOWER_THRESHOLD;
-	mvmvif->bf_data.bt_coex_min_thold =
-		BT_DISABLE_REDUCED_TXPOWER_THRESHOLD;
+	iwl_mvm_bt_coex_enable_rssi_event(mvm, vif, true, ave_rssi);
 }
 
 static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
@@ -752,6 +760,18 @@ static void iwl_mvm_bt_rssi_iterator(void *_data, u8 *mac,
 	struct ieee80211_sta *sta;
 	struct iwl_mvm_sta *mvmsta;
 
+	struct ieee80211_chanctx_conf *chanctx_conf;
+
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(vif->chanctx_conf);
+	/* If channel context is invalid or not on 2.4GHz - don't count it */
+	if (!chanctx_conf ||
+	    chanctx_conf->def.chan->band != IEEE80211_BAND_2GHZ) {
+		rcu_read_unlock();
+		return;
+	}
+	rcu_read_unlock();
+
 	if (vif->type != NL80211_IFTYPE_STATION ||
 	    mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
 		return;
-- 
cgit 


From f7fc598931766a0609f33de249c17c067737425e Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 20 Aug 2013 13:04:10 +0200
Subject: iwlwifi: mvm: implement new IPv6 offload API

The firmware API for IPv6 NDP/NS offload has changed again.
Implement support for the new API; this requires calculating
the solicited node address for each "target" address as it's
no longer ignored by the firmware.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-fw.h        |  4 ++
 drivers/net/wireless/iwlwifi/mvm/d3.c        | 75 ++++++++++++++++++++++++++--
 drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h | 44 +++++++++++++++-
 3 files changed, 118 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-fw.h b/drivers/net/wireless/iwlwifi/iwl-fw.h
index 8c2473e212d3..761794a5e916 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw.h
@@ -84,6 +84,8 @@
  * @IWL_UCODE_TLV_FLAGS_BF_UPDATED: new beacon filtering API
  * @IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID: not sending a probe with the SSID element
  *	from the probe request template.
+ * @IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL: new NS offload (small version)
+ * @IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_LARGE: new NS offload (large version)
  * @IWL_UCODE_TLV_FLAGS_SCHED_SCAN: this uCode image supports scheduled scan.
  * @IWL_UCODE_TLV_FLAGS_STA_KEY_CMD: new ADD_STA and ADD_STA_KEY command API
  */
@@ -101,6 +103,8 @@ enum iwl_ucode_tlv_flag {
 	IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS	= BIT(10),
 	IWL_UCODE_TLV_FLAGS_BF_UPDATED		= BIT(11),
 	IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID	= BIT(12),
+	IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL	= BIT(15),
+	IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_LARGE	= BIT(16),
 	IWL_UCODE_TLV_FLAGS_SCHED_SCAN		= BIT(17),
 	IWL_UCODE_TLV_FLAGS_STA_KEY_CMD		= BIT(19),
 };
diff --git a/drivers/net/wireless/iwlwifi/mvm/d3.c b/drivers/net/wireless/iwlwifi/mvm/d3.c
index 123a44f031a7..d08c12b930e5 100644
--- a/drivers/net/wireless/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/iwlwifi/mvm/d3.c
@@ -67,6 +67,7 @@
 #include <net/cfg80211.h>
 #include <net/ipv6.h>
 #include <net/tcp.h>
+#include <net/addrconf.h>
 #include "iwl-modparams.h"
 #include "fw-api.h"
 #include "mvm.h"
@@ -381,14 +382,74 @@ static int iwl_mvm_send_proto_offload(struct iwl_mvm *mvm,
 	union {
 		struct iwl_proto_offload_cmd_v1 v1;
 		struct iwl_proto_offload_cmd_v2 v2;
+		struct iwl_proto_offload_cmd_v3_small v3s;
+		struct iwl_proto_offload_cmd_v3_large v3l;
 	} cmd = {};
+	struct iwl_host_cmd hcmd = {
+		.id = PROT_OFFLOAD_CONFIG_CMD,
+		.flags = CMD_SYNC,
+		.data[0] = &cmd,
+		.dataflags[0] = IWL_HCMD_DFL_DUP,
+	};
 	struct iwl_proto_offload_cmd_common *common;
 	u32 enabled = 0, size;
+	u32 capa_flags = mvm->fw->ucode_capa.flags;
 #if IS_ENABLED(CONFIG_IPV6)
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 	int i;
 
-	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS) {
+	if (capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL ||
+	    capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_LARGE) {
+		struct iwl_ns_config *nsc;
+		struct iwl_targ_addr *addrs;
+		int n_nsc, n_addrs;
+		int c;
+
+		if (capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL) {
+			nsc = cmd.v3s.ns_config;
+			n_nsc = IWL_PROTO_OFFLOAD_NUM_NS_CONFIG_V3S;
+			addrs = cmd.v3s.targ_addrs;
+			n_addrs = IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V3S;
+		} else {
+			nsc = cmd.v3l.ns_config;
+			n_nsc = IWL_PROTO_OFFLOAD_NUM_NS_CONFIG_V3L;
+			addrs = cmd.v3l.targ_addrs;
+			n_addrs = IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V3L;
+		}
+
+		if (mvmvif->num_target_ipv6_addrs)
+			enabled |= IWL_D3_PROTO_OFFLOAD_NS;
+
+		/*
+		 * For each address we have (and that will fit) fill a target
+		 * address struct and combine for NS offload structs with the
+		 * solicited node addresses.
+		 */
+		for (i = 0, c = 0;
+		     i < mvmvif->num_target_ipv6_addrs &&
+		     i < n_addrs && c < n_nsc; i++) {
+			struct in6_addr solicited_addr;
+			int j;
+
+			addrconf_addr_solict_mult(&mvmvif->target_ipv6_addrs[i],
+						  &solicited_addr);
+			for (j = 0; j < c; j++)
+				if (ipv6_addr_cmp(&nsc[j].dest_ipv6_addr,
+						  &solicited_addr) == 0)
+					break;
+			if (j == c)
+				c++;
+			addrs[i].addr = mvmvif->target_ipv6_addrs[i];
+			addrs[i].config_num = cpu_to_le32(j);
+			nsc[j].dest_ipv6_addr = solicited_addr;
+			memcpy(nsc[j].target_mac_addr, vif->addr, ETH_ALEN);
+		}
+
+		if (capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL)
+			cmd.v3s.num_valid_ipv6_addrs = cpu_to_le32(i);
+		else
+			cmd.v3l.num_valid_ipv6_addrs = cpu_to_le32(i);
+	} else if (capa_flags & IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS) {
 		if (mvmvif->num_target_ipv6_addrs) {
 			enabled |= IWL_D3_PROTO_OFFLOAD_NS;
 			memcpy(cmd.v2.ndp_mac_addr, vif->addr, ETH_ALEN);
@@ -419,7 +480,13 @@ static int iwl_mvm_send_proto_offload(struct iwl_mvm *mvm,
 	}
 #endif
 
-	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS) {
+	if (capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL) {
+		common = &cmd.v3s.common;
+		size = sizeof(cmd.v3s);
+	} else if (capa_flags & IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_LARGE) {
+		common = &cmd.v3l.common;
+		size = sizeof(cmd.v3l);
+	} else if (capa_flags & IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS) {
 		common = &cmd.v2.common;
 		size = sizeof(cmd.v2);
 	} else {
@@ -438,8 +505,8 @@ static int iwl_mvm_send_proto_offload(struct iwl_mvm *mvm,
 
 	common->enabled = cpu_to_le32(enabled);
 
-	return iwl_mvm_send_cmd_pdu(mvm, PROT_OFFLOAD_CONFIG_CMD, CMD_SYNC,
-				    size, &cmd);
+	hcmd.len[0] = size;
+	return iwl_mvm_send_cmd(mvm, &hcmd);
 }
 
 enum iwl_mvm_tcp_packet_type {
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h
index df72fcdf8170..1f7d65aaa87a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h
@@ -100,7 +100,12 @@ enum iwl_proto_offloads {
 
 #define IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V1	2
 #define IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V2	6
-#define IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX	6
+#define IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V3L	12
+#define IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V3S	4
+#define IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX	12
+
+#define IWL_PROTO_OFFLOAD_NUM_NS_CONFIG_V3L	4
+#define IWL_PROTO_OFFLOAD_NUM_NS_CONFIG_V3S	2
 
 /**
  * struct iwl_proto_offload_cmd_common - ARP/NS offload common part
@@ -155,6 +160,43 @@ struct iwl_proto_offload_cmd_v2 {
 	u8 reserved2[3];
 } __packed; /* PROT_OFFLOAD_CONFIG_CMD_DB_S_VER_2 */
 
+struct iwl_ns_config {
+	struct in6_addr source_ipv6_addr;
+	struct in6_addr dest_ipv6_addr;
+	u8 target_mac_addr[ETH_ALEN];
+	__le16 reserved;
+} __packed; /* NS_OFFLOAD_CONFIG */
+
+struct iwl_targ_addr {
+	struct in6_addr addr;
+	__le32 config_num;
+} __packed; /* TARGET_IPV6_ADDRESS */
+
+/**
+ * struct iwl_proto_offload_cmd_v3_small - ARP/NS offload configuration
+ * @common: common/IPv4 configuration
+ * @target_ipv6_addr: target IPv6 addresses
+ * @ns_config: NS offload configurations
+ */
+struct iwl_proto_offload_cmd_v3_small {
+	struct iwl_proto_offload_cmd_common common;
+	__le32 num_valid_ipv6_addrs;
+	struct iwl_targ_addr targ_addrs[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V3S];
+	struct iwl_ns_config ns_config[IWL_PROTO_OFFLOAD_NUM_NS_CONFIG_V3S];
+} __packed; /* PROT_OFFLOAD_CONFIG_CMD_DB_S_VER_3 */
+
+/**
+ * struct iwl_proto_offload_cmd_v3_large - ARP/NS offload configuration
+ * @common: common/IPv4 configuration
+ * @target_ipv6_addr: target IPv6 addresses
+ * @ns_config: NS offload configurations
+ */
+struct iwl_proto_offload_cmd_v3_large {
+	struct iwl_proto_offload_cmd_common common;
+	__le32 num_valid_ipv6_addrs;
+	struct iwl_targ_addr targ_addrs[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_V3L];
+	struct iwl_ns_config ns_config[IWL_PROTO_OFFLOAD_NUM_NS_CONFIG_V3L];
+} __packed; /* PROT_OFFLOAD_CONFIG_CMD_DB_S_VER_3 */
 
 /*
  * WOWLAN_PATTERNS
-- 
cgit 


From ff116373f6b2e080208fc0478457734a13d8e6dc Mon Sep 17 00:00:00 2001
From: Eytan Lifshitz <eytan.lifshitz@intel.com>
Date: Tue, 3 Sep 2013 12:06:11 +0300
Subject: iwlwifi: mvm: change the name of init_ucode_run flag

In RF KILL the init ucode is running, but don't complete
all its tasks, so we need to run the init ucode again.
Change the flag name to init_ucode_complete, to be more appropriate.

Signed-off-by: Eytan Lifshitz <eytan.lifshitz@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/fw.c  | 12 ++++++++----
 drivers/net/wireless/iwlwifi/mvm/mvm.h |  2 +-
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c
index c76299a3a1e0..f96186f28035 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/iwlwifi/mvm/fw.c
@@ -243,7 +243,7 @@ int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm)
 
 	lockdep_assert_held(&mvm->mutex);
 
-	if (mvm->init_ucode_run)
+	if (mvm->init_ucode_complete)
 		return 0;
 
 	iwl_init_notification_wait(&mvm->notif_wait,
@@ -310,7 +310,7 @@ int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm)
 	ret = iwl_wait_notification(&mvm->notif_wait, &calib_wait,
 			MVM_UCODE_CALIB_TIMEOUT);
 	if (!ret)
-		mvm->init_ucode_run = true;
+		mvm->init_ucode_complete = true;
 	goto out;
 
 error:
@@ -353,8 +353,12 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
 	if (ret)
 		return ret;
 
-	/* If we were in RFKILL during module loading, load init ucode now */
-	if (!mvm->init_ucode_run) {
+	/*
+	 * If we haven't completed the run of the init ucode during
+	 * module loading, load init ucode now
+	 * (for example, if we were in RFKILL)
+	 */
+	if (!mvm->init_ucode_complete) {
 		ret = iwl_run_init_mvm_ucode(mvm, false);
 		if (ret && !iwlmvm_mod_params.init_dbg) {
 			IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret);
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 33dbc7cefeba..18c0ae965658 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -441,7 +441,7 @@ struct iwl_mvm {
 
 	enum iwl_ucode_type cur_ucode;
 	bool ucode_loaded;
-	bool init_ucode_run;
+	bool init_ucode_complete;
 	u32 error_event_table;
 	u32 log_event_table;
 
-- 
cgit 


From c90ca5074134143aaf5e118cc0862bf52aab7f3c Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 10 Sep 2013 09:55:32 +0300
Subject: iwlwifi: pcie: dump_stack upon timeout of SYNC cmd

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/pcie/tx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index f45eb29c2ede..a70a30e2aeb0 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -1529,6 +1529,7 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans,
 				"Error sending %s: time out after %dms.\n",
 				get_cmd_string(trans_pcie, cmd->id),
 				jiffies_to_msecs(HOST_COMPLETE_TIMEOUT));
+			dump_stack();
 
 			IWL_ERR(trans,
 				"Current CMD queue read_ptr %d write_ptr %d\n",
-- 
cgit 


From 5d3c2f7d34616072900b0dafbaf58496d1d9bbf6 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 10 Sep 2013 14:28:24 +0300
Subject: wireless: iwlwifi: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/pcie/drv.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/pcie/drv.c b/drivers/net/wireless/iwlwifi/pcie/drv.c
index dc02cb9792af..5c5c423aa286 100644
--- a/drivers/net/wireless/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/iwlwifi/pcie/drv.c
@@ -349,7 +349,6 @@ out_free_drv:
 	iwl_drv_stop(trans_pcie->drv);
 out_free_trans:
 	iwl_trans_pcie_free(iwl_trans);
-	pci_set_drvdata(pdev, NULL);
 	return ret;
 }
 
@@ -360,8 +359,6 @@ static void iwl_pci_remove(struct pci_dev *pdev)
 
 	iwl_drv_stop(trans_pcie->drv);
 	iwl_trans_pcie_free(trans);
-
-	pci_set_drvdata(pdev, NULL);
 }
 
 #ifdef CONFIG_PM_SLEEP
-- 
cgit 


From 7578d57520f51093f590d68e16965e2714e69747 Mon Sep 17 00:00:00 2001
From: Arik Nemtsov <arik@wizery.com>
Date: Sun, 1 Sep 2013 17:15:51 +0300
Subject: mac80211: implement STA CSA for drivers using channel contexts

Limit the current implementation to a single channel context used by
a single vif, thereby avoiding multi-vif/channel complexities.

Reuse the main function from AP CSA code, but move a portion out in
order to fit the STA scenario.

Add a new mac80211 HW flag so we don't break devices that don't support
channel switch with channel-contexts. The new behavior will be opt-in.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 include/net/mac80211.h |  6 ++++++
 net/mac80211/cfg.c     |  5 +++++
 net/mac80211/chan.c    |  5 -----
 net/mac80211/mlme.c    | 57 +++++++++++++++++++++++++++++++++++++-------------
 4 files changed, 54 insertions(+), 19 deletions(-)

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index da8011920b65..f386c480e134 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1502,6 +1502,11 @@ struct ieee80211_tx_control {
  *
  * @IEEE80211_HW_TIMING_BEACON_ONLY: Use sync timing from beacon frames
  *	only, to allow getting TBTT of a DTIM beacon.
+ *
+ * @IEEE80211_HW_CHANCTX_STA_CSA: Support 802.11h based channel-switch (CSA)
+ *	for a single active channel while using channel contexts. When support
+ *	is not enabled the default action is to disconnect when getting the
+ *	CSA frame.
  */
 enum ieee80211_hw_flags {
 	IEEE80211_HW_HAS_RATE_CONTROL			= 1<<0,
@@ -1532,6 +1537,7 @@ enum ieee80211_hw_flags {
 	IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF		= 1<<25,
 	IEEE80211_HW_TIMING_BEACON_ONLY			= 1<<26,
 	IEEE80211_HW_SUPPORTS_HT_CCK_RATES		= 1<<27,
+	IEEE80211_HW_CHANCTX_STA_CSA			= 1<<28,
 };
 
 /**
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index b455e7264f4f..ac28af74a414 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2871,6 +2871,11 @@ void ieee80211_csa_finalize_work(struct work_struct *work)
 	if (WARN_ON(err < 0))
 		return;
 
+	if (!local->use_chanctx) {
+		local->_oper_chandef = local->csa_chandef;
+		ieee80211_hw_config(local, 0);
+	}
+
 	ieee80211_bss_info_change_notify(sdata, changed);
 
 	switch (sdata->vif.type) {
diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index 3a4764b2869e..03ba6b5c5373 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -453,11 +453,6 @@ int ieee80211_vif_change_channel(struct ieee80211_sub_if_data *sdata,
 	chanctx_changed |= IEEE80211_CHANCTX_CHANGE_CHANNEL;
 	drv_change_chanctx(local, ctx, chanctx_changed);
 
-	if (!local->use_chanctx) {
-		local->_oper_chandef = *chandef;
-		ieee80211_hw_config(local, 0);
-	}
-
 	ieee80211_recalc_chanctx_chantype(local, ctx);
 	ieee80211_recalc_smps_chanctx(local, ctx);
 	ieee80211_recalc_radar_chanctx(local, ctx);
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 9fce0f49cd10..91cc8281e266 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -876,6 +876,8 @@ static void ieee80211_chswitch_work(struct work_struct *work)
 		container_of(work, struct ieee80211_sub_if_data, u.mgd.chswitch_work);
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+	u32 changed = 0;
+	int ret;
 
 	if (!ieee80211_sdata_running(sdata))
 		return;
@@ -884,24 +886,39 @@ static void ieee80211_chswitch_work(struct work_struct *work)
 	if (!ifmgd->associated)
 		goto out;
 
-	local->_oper_chandef = local->csa_chandef;
+	ret = ieee80211_vif_change_channel(sdata, &local->csa_chandef,
+					   &changed);
+	if (ret) {
+		sdata_info(sdata,
+			   "vif channel switch failed, disconnecting\n");
+		ieee80211_queue_work(&sdata->local->hw,
+				     &ifmgd->csa_connection_drop_work);
+		goto out;
+	}
 
-	if (!local->ops->channel_switch) {
-		/* call "hw_config" only if doing sw channel switch */
-		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
-	} else {
-		/* update the device channel directly */
-		local->hw.conf.chandef = local->_oper_chandef;
+	if (!local->use_chanctx) {
+		local->_oper_chandef = local->csa_chandef;
+		/* Call "hw_config" only if doing sw channel switch.
+		 * Otherwise update the channel directly
+		 */
+		if (!local->ops->channel_switch)
+			ieee80211_hw_config(local, 0);
+		else
+			local->hw.conf.chandef = local->_oper_chandef;
 	}
 
 	/* XXX: shouldn't really modify cfg80211-owned data! */
-	ifmgd->associated->channel = local->_oper_chandef.chan;
+	ifmgd->associated->channel = local->csa_chandef.chan;
 
 	/* XXX: wait for a beacon first? */
 	ieee80211_wake_queues_by_reason(&local->hw,
 					IEEE80211_MAX_QUEUE_MAP,
 					IEEE80211_QUEUE_STOP_REASON_CSA);
+
+	ieee80211_bss_info_change_notify(sdata, changed);
+
  out:
+	sdata->vif.csa_active = false;
 	ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
 	sdata_unlock(sdata);
 }
@@ -983,17 +1000,28 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 	}
 
 	ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
+	sdata->vif.csa_active = true;
 
+	mutex_lock(&local->chanctx_mtx);
 	if (local->use_chanctx) {
-		sdata_info(sdata,
-			   "not handling channel switch with channel contexts\n");
-		ieee80211_queue_work(&local->hw,
-				     &ifmgd->csa_connection_drop_work);
-		return;
+		u32 num_chanctx = 0;
+		list_for_each_entry(chanctx, &local->chanctx_list, list)
+		       num_chanctx++;
+
+		if (num_chanctx > 1 ||
+		    !(local->hw.flags & IEEE80211_HW_CHANCTX_STA_CSA)) {
+			sdata_info(sdata,
+				   "not handling chan-switch with channel contexts\n");
+			ieee80211_queue_work(&local->hw,
+					     &ifmgd->csa_connection_drop_work);
+			mutex_unlock(&local->chanctx_mtx);
+			return;
+		}
 	}
 
-	mutex_lock(&local->chanctx_mtx);
 	if (WARN_ON(!rcu_access_pointer(sdata->vif.chanctx_conf))) {
+		ieee80211_queue_work(&local->hw,
+				     &ifmgd->csa_connection_drop_work);
 		mutex_unlock(&local->chanctx_mtx);
 		return;
 	}
@@ -1955,6 +1983,7 @@ static void __ieee80211_disconnect(struct ieee80211_sub_if_data *sdata)
 			       WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY,
 			       true, frame_buf);
 	ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
+	sdata->vif.csa_active = false;
 	ieee80211_wake_queues_by_reason(&sdata->local->hw,
 					IEEE80211_MAX_QUEUE_MAP,
 					IEEE80211_QUEUE_STOP_REASON_CSA);
-- 
cgit 


From b373e492f3a3469c615c2ae218d2f723900bf981 Mon Sep 17 00:00:00 2001
From: Anup Patel <anup.patel@linaro.org>
Date: Wed, 11 Sep 2013 18:34:22 +0530
Subject: KVM: ARM: Fix typo in comments of inject_abt()

Very minor typo in comments of inject_abt() when we update fault status
register for injecting prefetch abort.

Signed-off-by: Anup Patel <anup.patel@linaro.org>
Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm/kvm/emulate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/kvm/emulate.c b/arch/arm/kvm/emulate.c
index bdede9e7da51..d6c005283678 100644
--- a/arch/arm/kvm/emulate.c
+++ b/arch/arm/kvm/emulate.c
@@ -354,7 +354,7 @@ static void inject_abt(struct kvm_vcpu *vcpu, bool is_pabt, unsigned long addr)
 	*vcpu_pc(vcpu) = exc_vector_base(vcpu) + vect_offset;
 
 	if (is_pabt) {
-		/* Set DFAR and DFSR */
+		/* Set IFAR and IFSR */
 		vcpu->arch.cp15[c6_IFAR] = addr;
 		is_lpae = (vcpu->arch.cp15[c2_TTBCR] >> 31);
 		/* Always give debug fault for now - should give guest a clue */
-- 
cgit 


From 2b2b614dd24e4e6474fcf2dcf69c95c908838959 Mon Sep 17 00:00:00 2001
From: Zoltan Kiss <zoltan.kiss@citrix.com>
Date: Wed, 4 Sep 2013 21:11:05 +0100
Subject: tracing/events: Add bounce tracing to swiotbl

Ftrace is currently not able to detect when SWIOTLB has to do double buffering.
Under Xen you can only see it indirectly in function_graph, when
xen_swiotlb_map_page() doesn't stop after range_straddles_page_boundary(), but
calls spinlock functions, memcpy() and xen_phys_to_bus() as well. This patch
introduces the swiotlb:swiotlb_bounced event, which also prints out the
following informations to help you find out why bouncing happened:

dev_name: 0000:08:00.0 dma_mask=ffffffffffffffff dev_addr=9149f000 size=32768
swiotlb_force=0

If you use Xen, and (dev_addr + size + 1) > dma_mask, the buffer is out of the
device's DMA range. If swiotlb_force == 1, you should really change the kernel
parameters. Otherwise, the buffer is not contiguous in mfn space.

Signed-off-by: Zoltan Kiss <zoltan.kiss@citrix.com>
[v1: Don't print 'swiotlb_force=X', just print swiotlb_force if it is enabled]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
 drivers/xen/swiotlb-xen.c      |  5 +++++
 include/trace/events/swiotlb.h | 46 ++++++++++++++++++++++++++++++++++++++++++
 lib/swiotlb.c                  |  4 ++++
 3 files changed, 55 insertions(+)
 create mode 100644 include/trace/events/swiotlb.h

diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 1b2277c311d2..b31081007a81 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -42,6 +42,9 @@
 #include <xen/page.h>
 #include <xen/xen-ops.h>
 #include <xen/hvc-console.h>
+
+#define CREATE_TRACE_POINTS
+#include <trace/events/swiotlb.h>
 /*
  * Used to do a quick range check in swiotlb_tbl_unmap_single and
  * swiotlb_tbl_sync_single_*, to see if the memory was in fact allocated by this
@@ -358,6 +361,8 @@ dma_addr_t xen_swiotlb_map_page(struct device *dev, struct page *page,
 	/*
 	 * Oh well, have to allocate and map a bounce buffer.
 	 */
+	trace_swiotlb_bounced(dev, dev_addr, size, swiotlb_force);
+
 	map = swiotlb_tbl_map_single(dev, start_dma_addr, phys, size, dir);
 	if (map == SWIOTLB_MAP_ERROR)
 		return DMA_ERROR_CODE;
diff --git a/include/trace/events/swiotlb.h b/include/trace/events/swiotlb.h
new file mode 100644
index 000000000000..7ea4c5e7c448
--- /dev/null
+++ b/include/trace/events/swiotlb.h
@@ -0,0 +1,46 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM swiotlb
+
+#if !defined(_TRACE_SWIOTLB_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_SWIOTLB_H
+
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(swiotlb_bounced,
+
+	TP_PROTO(struct device *dev,
+		 dma_addr_t dev_addr,
+		 size_t size,
+		 int swiotlb_force),
+
+	TP_ARGS(dev, dev_addr, size, swiotlb_force),
+
+	TP_STRUCT__entry(
+		__string(	dev_name,	dev_name(dev)	)
+		__field(	u64,	dma_mask		)
+		__field(	dma_addr_t,	dev_addr	)
+		__field(	size_t,	size			)
+		__field(	int,	swiotlb_force		)
+	),
+
+	TP_fast_assign(
+		__assign_str(dev_name, dev_name(dev));
+		__entry->dma_mask = (dev->dma_mask ? *dev->dma_mask : 0);
+		__entry->dev_addr = dev_addr;
+		__entry->size = size;
+		__entry->swiotlb_force = swiotlb_force;
+	),
+
+	TP_printk("dev_name: %s dma_mask=%llx dev_addr=%llx "
+		"size=%zu %s",
+		__get_str(dev_name),
+		__entry->dma_mask,
+		(unsigned long long)__entry->dev_addr,
+		__entry->size,
+		__entry->swiotlb_force ? "swiotlb_force" : "" )
+);
+
+#endif /*  _TRACE_SWIOTLB_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 4e8686c7e5a4..f0d841907da6 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -38,6 +38,8 @@
 #include <linux/bootmem.h>
 #include <linux/iommu-helper.h>
 
+#include <trace/events/swiotlb.h>
+
 #define OFFSET(val,align) ((unsigned long)	\
 	                   ( (val) & ( (align) - 1)))
 
@@ -726,6 +728,8 @@ dma_addr_t swiotlb_map_page(struct device *dev, struct page *page,
 	if (dma_capable(dev, dev_addr, size) && !swiotlb_force)
 		return dev_addr;
 
+	trace_swiotlb_bounced(dev, dev_addr, size, swiotlb_force);
+
 	/* Oh well, have to allocate and map a bounce buffer. */
 	map = map_single(dev, phys, size, dir);
 	if (map == SWIOTLB_MAP_ERROR) {
-- 
cgit 


From d0bf75a51b172fdd9dd90bfa03c0f5de473b6c94 Mon Sep 17 00:00:00 2001
From: DoHyun Pyun <dh79.pyun@samsung.com>
Date: Wed, 2 Oct 2013 21:54:46 +0900
Subject: Bluetooth: Add the definition and structure for Set Reserved LT_ADDR

The Set_Reserved_LT_ADDR command allows the host to request that the
BR/EDR Controller reserve a specific LT_ADDR for Connectionless Slave
Broadcast.

The Core Spec Addendum 4 adds this command in part B Connectionless
Slave Broadcast.

Bluetooth Core Specification Addendum 4 - Page 90

"7.3.86 Set Reserved LT_ADDR Command [New Section]
...
If the LT_ADDR indicated in the LT_ADDR parameter is already in use by the
BR/EDR Controller, it shall return the ACL Connection Already Exists (0x0B)
error code. If the LT_ADDR indicated in the LT_ADDR parameter is out of
range, the controller shall return the Invalid HCI Command Parameters (0x12)
error code. If the command succeeds, then the reserved LT_ADDR shall be
used when issuing subsequent Set Connectionless Slave Broadcast Data and
Set Connectionless Slave Broadcast commands.
To ensure that the reserved LT_ADDR is not already allocated, it is
recommended that this command be issued at some point after HCI_Reset is
issued but before page scanning is enabled or paging is initiated."

Signed-off-by: Dohyun Pyun <dh79.pyun@samsung.com>
Signed-off-by: C S Bhargava <cs.bhargava@samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/hci.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index d7fd825ed2ce..4d88809da3f6 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -839,6 +839,15 @@ struct hci_cp_write_le_host_supported {
 	__u8	simul;
 } __packed;
 
+#define HCI_OP_SET_RESERVED_LT_ADDR	0x0c74
+struct hci_cp_set_reserved_lt_addr {
+	__u8	lt_addr;
+} __packed;
+struct hci_rp_set_reserved_lt_addr {
+	__u8	status;
+	__u8	lt_addr;
+} __packed;
+
 #define HCI_OP_READ_SYNC_TRAIN_PARAMS	0x0c77
 
 #define HCI_OP_READ_LOCAL_VERSION	0x1001
-- 
cgit 


From 6a20eaf40419481dd55031ffe7a856e7a304ca4d Mon Sep 17 00:00:00 2001
From: DoHyun Pyun <dh79.pyun@samsung.com>
Date: Wed, 2 Oct 2013 21:54:47 +0900
Subject: Bluetooth: Add the definition and structure for Delete Reserved
 LT_ADDR

The Delete_Reserved_LT_ADDR command requests that the BR/EDR
Controller cancel the reservation for a specific LT_ADDR reserved for the
purposes of Connectionless Slave Broadcast.

The Core Spec Addendum 4 adds this command in part B Connectionless
Slave Broadcast.

Bluetooth Core Specification Addendum 4 - Page 92

"7.3.87 Delete Reserved LT_ADDR Command [New Section]
...
If the LT_ADDR indicated in the LT_ADDR parameter is not reserved by the
BR/EDR Controller, it shall return the Unknown Connection Identifier (0x02)
error code.
If connectionless slave broadcast mode is still active, then the Controller
shall return the Command Disallowed (0x0C) error code."

Signed-off-by: Dohyun Pyun <dh79.pyun@samsung.com>
Signed-off-by: C S Bhargava <cs.bhargava@samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/hci.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 4d88809da3f6..9b071f162dde 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -848,6 +848,15 @@ struct hci_rp_set_reserved_lt_addr {
 	__u8	lt_addr;
 } __packed;
 
+#define HCI_OP_DELETE_RESERVED_LT_ADDR	0x0c75
+struct hci_cp_delete_reserved_lt_addr {
+	__u8	lt_addr;
+} __packed;
+struct hci_rp_delete_reserved_lt_addr {
+	__u8	status;
+	__u8	lt_addr;
+} __packed;
+
 #define HCI_OP_READ_SYNC_TRAIN_PARAMS	0x0c77
 
 #define HCI_OP_READ_LOCAL_VERSION	0x1001
-- 
cgit 


From 7d1dab49f645557bb0b9246f7ae87fafd2716e70 Mon Sep 17 00:00:00 2001
From: DoHyun Pyun <dh79.pyun@samsung.com>
Date: Wed, 2 Oct 2013 21:54:48 +0900
Subject: Bluetooth: Add the definition and structure for Set CSB Data

The Set_Connectionless_Slave_Broadcast_Data command provides the
ability for the Host to set Connectionless Slave Broadcast data in
the BR/EDR Controller.

The Core Spec Addendum 4 adds this command in part B Connectionless
Slave Broadcast.

Bluetooth Core Specification Addendum 4 - Page 93

"7.3.88 Set Connectionless Slave Broadcast Data Command [New Section]
...
If connectionless slave broadcast mode is disabled, this data shall be
kept by the BR/EDR Controller and used once connectionless slave broadcast
mode is enabled. If connectionless slave broadcast mode is enabled,
and this command is successful, this data will be sent starting with
the next Connectionless Slave Broadcast instant.

The Data_Length field may be zero, in which case no data needs to be
provided.

The Host may fragment the data using the Fragment field in the command. If
the combined length of the fragments exceeds the capacity of the largest
allowed packet size specified in the Set Connectionless Slave Broadcast
command, all fragments associated with the data being assembled shall be
discarded and the Invalid HCI Command Parameters error (0x12) shall be
returned."

Signed-off-by: Dohyun Pyun <dh79.pyun@samsung.com>
Signed-off-by: C S Bhargava <cs.bhargava@samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/hci.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 9b071f162dde..d9e0a8467ddc 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -35,6 +35,8 @@
 
 #define HCI_MAX_AMP_ASSOC_SIZE	672
 
+#define HCI_MAX_CSB_DATA_SIZE	252
+
 /* HCI dev events */
 #define HCI_DEV_REG			1
 #define HCI_DEV_UNREG			2
@@ -857,6 +859,18 @@ struct hci_rp_delete_reserved_lt_addr {
 	__u8	lt_addr;
 } __packed;
 
+#define HCI_OP_SET_CSB_DATA		0x0c76
+struct hci_cp_set_csb_data {
+	__u8	lt_addr;
+	__u8	fragment;
+	__u8	data_length;
+	__u8	data[HCI_MAX_CSB_DATA_SIZE];
+} __packed;
+struct hci_rp_set_csb_data {
+	__u8	status;
+	__u8	lt_addr;
+} __packed;
+
 #define HCI_OP_READ_SYNC_TRAIN_PARAMS	0x0c77
 
 #define HCI_OP_READ_LOCAL_VERSION	0x1001
-- 
cgit 


From a9b07a643f16332c4cc96259ef5cad2163f8e28a Mon Sep 17 00:00:00 2001
From: DoHyun Pyun <dh79.pyun@samsung.com>
Date: Wed, 2 Oct 2013 21:54:49 +0900
Subject: Bluetooth: Add the structure for Write Sync Train Parameters

The Write_Synchronization_Train_Parameters command configures
the Synchronization Train functionality in the BR/EDR Controller.

The Core Spec Addendum 4 adds this command in part B Connectionless
Slave Broadcast.

Bluetooth Core Specification Addendum 4 - Page 97

"7.3.90 Write Synchronization Train Parameters Command [New Section]
...
Note: The AFH_Channel_Map used in the Synchronization Train packets is
configured by the Set_AFH_Channel_Classification command and the local
channel classification in the BR/EDR Controller.

Interval_Min and Interval_Max specify the allowed range of
Sync_Train_Interval. Refer to [Vol. 2], Part B, section 2.7.2 for
a detailed description of Sync_Train_Interval. The BR/EDR Controller shall
select an interval from this range and return it in Sync_Train_Interval.
If the Controller is unable to select a value from this range, it shall
return the Invalid HCI Command Parameters (0x12) error code.

Once started (via the Start_Synchronization_Train Command) the
Synchronization Train will continue until synchronization_trainTO slots have
passed or Connectionless Slave Broadcast has been disabled."

Signed-off-by: Dohyun Pyun <dh79.pyun@samsung.com>
Signed-off-by: C S Bhargava <cs.bhargava@samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/hci.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index d9e0a8467ddc..cad6ca121461 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -873,6 +873,18 @@ struct hci_rp_set_csb_data {
 
 #define HCI_OP_READ_SYNC_TRAIN_PARAMS	0x0c77
 
+#define HCI_OP_WRITE_SYNC_TRAIN_PARAMS	0x0c78
+struct hci_cp_write_sync_train_params {
+	__le16	interval_min;
+	__le16	interval_max;
+	__le32	sync_train_tout;
+	__u8	service_data;
+} __packed;
+struct hci_rp_write_sync_train_params {
+	__u8	status;
+	__le16	sync_train_int;
+} __packed;
+
 #define HCI_OP_READ_LOCAL_VERSION	0x1001
 struct hci_rp_read_local_version {
 	__u8     status;
-- 
cgit 


From 8c9a041be2b8d534e770594a5e8d3251cc221bd1 Mon Sep 17 00:00:00 2001
From: DoHyun Pyun <dh79.pyun@samsung.com>
Date: Wed, 2 Oct 2013 21:54:50 +0900
Subject: Bluetooth: Add the definition and structure for Set CSB

he Set_Connectionless_Slave_Broadcast command controls the
Connectionless Slave Broadcast functionality in the BR/EDR
Controller.

The Core Spec Addendum 4 adds this command in part B Connectionless
Slave Broadcast.

Bluetooth Core Specification Addendum 4 - Page 78

"7.1.49 Set Connectionless Slave Broadcast Command [New Section]
...
The LT_ADDR indicated in the Set_Connectionless_Slave_Broadcast shall be
pre-allocated using the HCI_Set_Reserved_LT_ADDR command. If the
LT_ADDR has not been reserved, the Unknown Connection Identifier (0x02)
error code shall be returned. If the controller is unable to reserve
sufficient bandwidth for the requested activity, the Connection Rejected
Due to Limited Resources (0x0D) error code shall be returned.

The LPO_Allowed parameter informs the BR/EDR Controller whether it is
allowed to sleep.

The Packet_Type parameter specifies which packet types are allowed. The
Host shall either enable BR packet types only, or shall enable EDR and DM1
packet types only.

The Interval_Min and Interval_Max parameters specify the range from which
the BR/EDR Controller must select the Connectionless Slave Broadcast
Interval. The selected Interval is returned."

Signed-off-by: Dohyun Pyun <dh79.pyun@samsung.com>
Signed-off-by: C S Bhargava <cs.bhargava@samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/hci.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index cad6ca121461..42d3832f0602 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -628,6 +628,22 @@ struct hci_rp_logical_link_cancel {
 	__u8     flow_spec_id;
 } __packed;
 
+#define HCI_OP_SET_CSB			0x0441
+struct hci_cp_set_csb {
+	__u8	enable;
+	__u8	lt_addr;
+	__u8	lpo_allowed;
+	__le16	packet_type;
+	__le16	interval_min;
+	__le16	interval_max;
+	__le16	csb_sv_tout;
+} __packed;
+struct hci_rp_set_csb {
+	__u8	status;
+	__u8	lt_addr;
+	__le16	interval;
+} __packed;
+
 #define HCI_OP_SNIFF_MODE		0x0803
 struct hci_cp_sniff_mode {
 	__le16   handle;
-- 
cgit 


From cefded981960d60f7d18f6596c020390b9764aa3 Mon Sep 17 00:00:00 2001
From: DoHyun Pyun <dh79.pyun@samsung.com>
Date: Wed, 2 Oct 2013 21:54:51 +0900
Subject: Bluetooth: Add the definition for Start Synchronization Train

The Start_Synchronization_Train command controls the Synchronization
Train functionality in the BR/EDR Controller.

The Core Spec Addendum 4 adds this command in part B Connectionless
Slave Broadcast.

Bluetooth Core Specification Addendum 4 - Page 86

"7.1.51 Start Synchronization Train Command [New Section]
...
If connectionless slave broadcast mode is not enabled, the Command
Disallowed (0x0C) error code shall be returned. After receiving this
command and returning a Command Status event, the Baseband starts
attempting to send synchronization train packets containing information
related to the enabled Connectionless Slave Broadcast packet timing.

Note: The AFH_Channel_Map used in the synchronization train packets is
configured by the Set_AFH_Channel_Classification command and the local
channel classification in the BR/EDR Controller.

The synchronization train packets will be sent using the parameters
specified by the latest Write_Synchronization_Train_Parameters command.
The Synchronization Train will continue until synchronization_trainTO
slots (as specified in the last Write_Synchronization_Train command)
have passed or until the Host disables the Connectionless Slave Broadcast
logical transport."

Signed-off-by: Dohyun Pyun <dh79.pyun@samsung.com>
Signed-off-by: C S Bhargava <cs.bhargava@samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/hci.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 42d3832f0602..657d2b09e3fe 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -644,6 +644,8 @@ struct hci_rp_set_csb {
 	__le16	interval;
 } __packed;
 
+#define HCI_OP_START_SYNC_TRAIN		0x0443
+
 #define HCI_OP_SNIFF_MODE		0x0803
 struct hci_cp_sniff_mode {
 	__le16   handle;
-- 
cgit 


From 2b359445d5578f65cdd5301dfcbf9e0bdc358b20 Mon Sep 17 00:00:00 2001
From: DoHyun Pyun <dh79.pyun@samsung.com>
Date: Wed, 2 Oct 2013 21:54:52 +0900
Subject: Bluetooth: Add the definition and stcuture for Sync Train Complete

The Synchronization Train Complete event indicates that the Start
Synchronization Train command has completed.

The Core Spec Addendum 4 adds this command in part B Connectionless
Slave Broadcast.

Bluetooth Core Specification Addendum 4 - Page 103

"7.7.67 Synchronization Train Complete Event [New Section]
...

Event Parameters:

Status 0x00       Start Synchronization Train command completed
                  successfully.
       0x01-0xFF  Start Synchronization Train command failed.
                  See Part D, Error Codes, for error codes and
                  descriptions."

Signed-off-by: Dohyun Pyun <dh79.pyun@samsung.com>
Signed-off-by: C S Bhargava <cs.bhargava@samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/hci.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 657d2b09e3fe..03f2a9126a5d 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -1505,6 +1505,11 @@ struct hci_ev_num_comp_blocks {
 	struct hci_comp_blocks_info handles[0];
 } __packed;
 
+#define HCI_EV_SYNC_TRAIN_COMPLETE	0x4F
+struct hci_ev_sync_train_complete {
+	__u8	status;
+} __packed;
+
 /* Low energy meta events */
 #define LE_CONN_ROLE_MASTER	0x00
 
-- 
cgit 


From 2ed01805ee439056f4e1fe182846c029e0a08e49 Mon Sep 17 00:00:00 2001
From: DoHyun Pyun <dh79.pyun@samsung.com>
Date: Wed, 2 Oct 2013 21:54:53 +0900
Subject: Bluetooth: Add the definition for Slave Page Response Timeout

The Slave Page Response Timeout event indicates to the Host that a
slave page response timeout has occurred in the BR/EDR Controller.

The Core Spec Addendum 4 adds this command in part B Connectionless
Slave Broadcast.

Bluetooth Core Specification Addendum 4 - Page 110

"7.7.72 Slave Page Response Timeout Event [New Section]
...
Note: this event will be generated if the slave BR/EDR Controller
responds to a page but does not receive the master FHS packet
(see Baseband, Section 8.3.3) within pagerespTO.

Event Parameters: NONE"

Signed-off-by: Dohyun Pyun <dh79.pyun@samsung.com>
Signed-off-by: C S Bhargava <cs.bhargava@samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/hci.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 03f2a9126a5d..b90eec5e9c06 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -1510,6 +1510,8 @@ struct hci_ev_sync_train_complete {
 	__u8	status;
 } __packed;
 
+#define HCI_EV_SLAVE_PAGE_RESP_TIMEOUT	0x54
+
 /* Low energy meta events */
 #define LE_CONN_ROLE_MASTER	0x00
 
-- 
cgit 


From 15f1df57cef9228f03cb063159c4c71149001325 Mon Sep 17 00:00:00 2001
From: Tugce Sirin <ztugcesirin@gmail.com>
Date: Wed, 2 Oct 2013 20:04:31 +0300
Subject: staging: nvec: fix space after if statement in nvec.c

This patch fixes space after if statement in nvec/nvec.c

Signed-off-by: Tugce Sirin <ztugcesirin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/nvec/nvec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c
index 5a5c6397e740..3066ee2e753b 100644
--- a/drivers/staging/nvec/nvec.c
+++ b/drivers/staging/nvec/nvec.c
@@ -802,7 +802,7 @@ static int tegra_nvec_probe(struct platform_device *pdev)
 		unmute_speakers[] = { NVEC_OEM0, 0x10, 0x59, 0x95 },
 		enable_event[7] = { NVEC_SYS, CNF_EVENT_REPORTING, true };
 
-	if(!pdev->dev.of_node) {
+	if (!pdev->dev.of_node) {
 		dev_err(&pdev->dev, "must be instantiated using device tree\n");
 		return -ENODEV;
 	}
-- 
cgit 


From 4a6fee805d5e278e4733bf933cb5b184b7a8be1f Mon Sep 17 00:00:00 2001
From: Anup Patel <anup.patel@linaro.org>
Date: Mon, 30 Sep 2013 14:20:05 +0530
Subject: ARM: KVM: Implement kvm_vcpu_preferred_target() function

This patch implements kvm_vcpu_preferred_target() function for
KVM ARM which will help us implement KVM_ARM_PREFERRED_TARGET ioctl
for user space.

Signed-off-by: Anup Patel <anup.patel@linaro.org>
Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm/include/asm/kvm_host.h |  1 +
 arch/arm/kvm/guest.c            | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+)

diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
index 7d22517d8071..76f3c1978442 100644
--- a/arch/arm/include/asm/kvm_host.h
+++ b/arch/arm/include/asm/kvm_host.h
@@ -154,6 +154,7 @@ struct kvm_vcpu_stat {
 struct kvm_vcpu_init;
 int kvm_vcpu_set_target(struct kvm_vcpu *vcpu,
 			const struct kvm_vcpu_init *init);
+int kvm_vcpu_preferred_target(struct kvm_vcpu_init *init);
 unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu);
 int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices);
 struct kvm_one_reg;
diff --git a/arch/arm/kvm/guest.c b/arch/arm/kvm/guest.c
index 152d03612181..ec98209fda71 100644
--- a/arch/arm/kvm/guest.c
+++ b/arch/arm/kvm/guest.c
@@ -222,6 +222,26 @@ int kvm_vcpu_set_target(struct kvm_vcpu *vcpu,
 	return kvm_reset_vcpu(vcpu);
 }
 
+int kvm_vcpu_preferred_target(struct kvm_vcpu_init *init)
+{
+	int target = kvm_target_cpu();
+
+	if (target < 0)
+		return -ENODEV;
+
+	memset(init, 0, sizeof(*init));
+
+	/*
+	 * For now, we don't return any features.
+	 * In future, we might use features to return target
+	 * specific features available for the preferred
+	 * target type.
+	 */
+	init->target = (__u32)target;
+
+	return 0;
+}
+
 int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
 {
 	return -EINVAL;
-- 
cgit 


From 473bdc0e6565ebb22455657a40daa21b6b4ee16b Mon Sep 17 00:00:00 2001
From: Anup Patel <anup.patel@linaro.org>
Date: Mon, 30 Sep 2013 14:20:06 +0530
Subject: ARM64: KVM: Implement kvm_vcpu_preferred_target() function

This patch implements kvm_vcpu_preferred_target() function for
KVM ARM64 which will help us implement KVM_ARM_PREFERRED_TARGET
ioctl for user space.

Signed-off-by: Anup Patel <anup.patel@linaro.org>
Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm64/include/asm/kvm_host.h |  1 +
 arch/arm64/kvm/guest.c            | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 0859a4ddd1e7..4cc8c7078f39 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -151,6 +151,7 @@ struct kvm_vcpu_stat {
 struct kvm_vcpu_init;
 int kvm_vcpu_set_target(struct kvm_vcpu *vcpu,
 			const struct kvm_vcpu_init *init);
+int kvm_vcpu_preferred_target(struct kvm_vcpu_init *init);
 unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu);
 int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *indices);
 struct kvm_one_reg;
diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c
index 2c3ff67a8ecb..3f0731e53274 100644
--- a/arch/arm64/kvm/guest.c
+++ b/arch/arm64/kvm/guest.c
@@ -248,6 +248,26 @@ int kvm_vcpu_set_target(struct kvm_vcpu *vcpu,
 	return kvm_reset_vcpu(vcpu);
 }
 
+int kvm_vcpu_preferred_target(struct kvm_vcpu_init *init)
+{
+	int target = kvm_target_cpu();
+
+	if (target < 0)
+		return -ENODEV;
+
+	memset(init, 0, sizeof(*init));
+
+	/*
+	 * For now, we don't return any features.
+	 * In future, we might use features to return target
+	 * specific features available for the preferred
+	 * target type.
+	 */
+	init->target = (__u32)target;
+
+	return 0;
+}
+
 int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
 {
 	return -EINVAL;
-- 
cgit 


From 42c4e0c77ac91505ab94284b14025e3a0865c0a5 Mon Sep 17 00:00:00 2001
From: Anup Patel <anup.patel@linaro.org>
Date: Mon, 30 Sep 2013 14:20:07 +0530
Subject: ARM/ARM64: KVM: Implement KVM_ARM_PREFERRED_TARGET ioctl

For implementing CPU=host, we need a mechanism for querying
preferred VCPU target type on underlying Host.

This patch implements KVM_ARM_PREFERRED_TARGET vm ioctl which
returns struct kvm_vcpu_init instance containing information
about preferred VCPU target type and target specific features
available for it.

Signed-off-by: Anup Patel <anup.patel@linaro.org>
Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm/kvm/arm.c       | 13 +++++++++++++
 include/uapi/linux/kvm.h |  1 +
 2 files changed, 14 insertions(+)

diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index 9c697db2787e..cc5adb9349ef 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -797,6 +797,19 @@ long kvm_arch_vm_ioctl(struct file *filp,
 			return -EFAULT;
 		return kvm_vm_ioctl_set_device_addr(kvm, &dev_addr);
 	}
+	case KVM_ARM_PREFERRED_TARGET: {
+		int err;
+		struct kvm_vcpu_init init;
+
+		err = kvm_vcpu_preferred_target(&init);
+		if (err)
+			return err;
+
+		if (copy_to_user(argp, &init, sizeof(init)))
+			return -EFAULT;
+
+		return 0;
+	}
 	default:
 		return -EINVAL;
 	}
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 99c25338ede8..e32e776f20c0 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -1012,6 +1012,7 @@ struct kvm_s390_ucas_mapping {
 /* VM is being stopped by host */
 #define KVM_KVMCLOCK_CTRL	  _IO(KVMIO,   0xad)
 #define KVM_ARM_VCPU_INIT	  _IOW(KVMIO,  0xae, struct kvm_vcpu_init)
+#define KVM_ARM_PREFERRED_TARGET  _IOR(KVMIO,  0xaf, struct kvm_vcpu_init)
 #define KVM_GET_REG_LIST	  _IOWR(KVMIO, 0xb0, struct kvm_reg_list)
 
 #define KVM_DEV_ASSIGN_ENABLE_IOMMU	(1 << 0)
-- 
cgit 


From 740edfc0a35dd688c97ae8907c4377df49219bf3 Mon Sep 17 00:00:00 2001
From: Anup Patel <anup.patel@linaro.org>
Date: Mon, 30 Sep 2013 14:20:08 +0530
Subject: KVM: Add documentation for KVM_ARM_PREFERRED_TARGET ioctl

To implement CPU=Host we have added KVM_ARM_PREFERRED_TARGET
vm ioctl which provides information to user space required for
creating VCPU matching underlying Host.

This patch adds info related to this new KVM_ARM_PREFERRED_TARGET
vm ioctl in the KVM API documentation.

Signed-off-by: Anup Patel <anup.patel@linaro.org>
Signed-off-by: Pranavkumar Sawargaonkar <pranavkumar@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 Documentation/virtual/kvm/api.txt | 31 +++++++++++++++++++++++++++----
 1 file changed, 27 insertions(+), 4 deletions(-)

diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 858aecf21db2..076b8492d810 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -2304,7 +2304,31 @@ Possible features:
 	  Depends on KVM_CAP_ARM_EL1_32BIT (arm64 only).
 
 
-4.83 KVM_GET_REG_LIST
+4.83 KVM_ARM_PREFERRED_TARGET
+
+Capability: basic
+Architectures: arm, arm64
+Type: vm ioctl
+Parameters: struct struct kvm_vcpu_init (out)
+Returns: 0 on success; -1 on error
+Errors:
+  ENODEV:    no preferred target available for the host
+
+This queries KVM for preferred CPU target type which can be emulated
+by KVM on underlying host.
+
+The ioctl returns struct kvm_vcpu_init instance containing information
+about preferred CPU target type and recommended features for it.  The
+kvm_vcpu_init->features bitmap returned will have feature bits set if
+the preferred target recommends setting these features, but this is
+not mandatory.
+
+The information returned by this ioctl can be used to prepare an instance
+of struct kvm_vcpu_init for KVM_ARM_VCPU_INIT ioctl which will result in
+in VCPU matching underlying host.
+
+
+4.84 KVM_GET_REG_LIST
 
 Capability: basic
 Architectures: arm, arm64
@@ -2323,8 +2347,7 @@ struct kvm_reg_list {
 This ioctl returns the guest registers that are supported for the
 KVM_GET_ONE_REG/KVM_SET_ONE_REG calls.
 
-
-4.84 KVM_ARM_SET_DEVICE_ADDR
+4.85 KVM_ARM_SET_DEVICE_ADDR
 
 Capability: KVM_CAP_ARM_SET_DEVICE_ADDR
 Architectures: arm, arm64
@@ -2362,7 +2385,7 @@ must be called after calling KVM_CREATE_IRQCHIP, but before calling
 KVM_RUN on any of the VCPUs.  Calling this ioctl twice for any of the
 base addresses will return -EEXIST.
 
-4.85 KVM_PPC_RTAS_DEFINE_TOKEN
+4.86 KVM_PPC_RTAS_DEFINE_TOKEN
 
 Capability: KVM_CAP_PPC_RTAS
 Architectures: ppc
-- 
cgit 


From b1a8014471b01dd862de9f91bbbff1296afac42d Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sat, 28 Sep 2013 15:25:39 +0200
Subject: Bluetooth: revert: "Bluetooth: Add missing reset_resume dev_pm_ops"

Many btusb devices have 2 modes, a hid mode and a bluetooth hci mode. These
devices default to hid mode for BIOS use. This means that after having been
reset they will revert to HID mode, and are no longer usable as a HCI.

Therefor it is a very bad idea to just blindly make reset_resume point to
the regular resume handler. Note that the btusb driver has no clue how to
switch these devices from hid to hci mode, this is done in userspace through
udev rules, so the proper way to deal with this is to not have a reset-resume
handler and instead let the usb-system re-enumerate the device, and re-run
the udev rules.

I must also note, that the commit message for the commit causing this
problem has a very weak motivation for the change:

"Add missing reset_resume dev_pm_ops. Missing reset_resume results in the
following message after power management device test. This change sets
reset_resume to btusb_resume().

[ 2506.936134] btusb 1-1.5:1.0: no reset_resume for driver btusb?
[ 2506.936137] btusb 1-1.5:1.1: no reset_resume for driver btusb?"

Making a change solely to silence a warning while also changing important
behavior (normal resume handling versus re-enumeration) requires a commit
message with a proper explanation why it is safe to do so, which clearly lacks
here, and unsurprisingly it turns out to not be safe to make this change.

Reverting the commit in question fixes bt no longer working on my Dell
E6430 after a suspend/resume, and I believe it likely also fixes the
following bugs:
https://bugzilla.redhat.com/show_bug.cgi?id=988481
https://bugzilla.redhat.com/show_bug.cgi?id=1010649
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1213239

This reverts commit 502f769662978a2fe99d0caed5e53e3006107381.

Cc: Shuah Khan <shuah.kh@samsung.com>
Cc: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 drivers/bluetooth/btusb.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index f3dfc0a88fdc..d593c99121c3 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -1628,7 +1628,6 @@ static struct usb_driver btusb_driver = {
 #ifdef CONFIG_PM
 	.suspend	= btusb_suspend,
 	.resume		= btusb_resume,
-	.reset_resume	= btusb_resume,
 #endif
 	.id_table	= btusb_table,
 	.supports_autosuspend = 1,
-- 
cgit 


From ead2402cb40a023c22d93ff374eee31022e28c58 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 28 Sep 2013 23:15:26 +0200
Subject: tg3: add support a phy at an address different than 01

When phylib was in use tg3 only searched at address 01 on the mdio
bus and did not work with any other address. On the BCM4705 SoCs the
switch is connected as a PHY behind the MAC driven by tg3 and it is at
PHY address 30 in most cases. This is a preparation patch to allow
support for such switches.

phy_addr is set to TG3_PHY_MII_ADDR for all devices, which are using
phylib, so this should not change any behavior.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/tg3.c | 38 ++++++++++++++++++-------------------
 1 file changed, 19 insertions(+), 19 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 221a1815fd36..853a05e0691f 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -1375,7 +1375,7 @@ static int tg3_mdio_read(struct mii_bus *bp, int mii_id, int reg)
 
 	spin_lock_bh(&tp->lock);
 
-	if (tg3_readphy(tp, reg, &val))
+	if (__tg3_readphy(tp, mii_id, reg, &val))
 		val = -EIO;
 
 	spin_unlock_bh(&tp->lock);
@@ -1390,7 +1390,7 @@ static int tg3_mdio_write(struct mii_bus *bp, int mii_id, int reg, u16 val)
 
 	spin_lock_bh(&tp->lock);
 
-	if (tg3_writephy(tp, reg, val))
+	if (__tg3_writephy(tp, mii_id, reg, val))
 		ret = -EIO;
 
 	spin_unlock_bh(&tp->lock);
@@ -1408,7 +1408,7 @@ static void tg3_mdio_config_5785(struct tg3 *tp)
 	u32 val;
 	struct phy_device *phydev;
 
-	phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
+	phydev = tp->mdio_bus->phy_map[tp->phy_addr];
 	switch (phydev->drv->phy_id & phydev->drv->phy_id_mask) {
 	case PHY_ID_BCM50610:
 	case PHY_ID_BCM50610M:
@@ -1533,7 +1533,7 @@ static int tg3_mdio_init(struct tg3 *tp)
 	tp->mdio_bus->read     = &tg3_mdio_read;
 	tp->mdio_bus->write    = &tg3_mdio_write;
 	tp->mdio_bus->reset    = &tg3_mdio_reset;
-	tp->mdio_bus->phy_mask = ~(1 << TG3_PHY_MII_ADDR);
+	tp->mdio_bus->phy_mask = ~(1 << tp->phy_addr);
 	tp->mdio_bus->irq      = &tp->mdio_irq[0];
 
 	for (i = 0; i < PHY_MAX_ADDR; i++)
@@ -1554,7 +1554,7 @@ static int tg3_mdio_init(struct tg3 *tp)
 		return i;
 	}
 
-	phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
+	phydev = tp->mdio_bus->phy_map[tp->phy_addr];
 
 	if (!phydev || !phydev->drv) {
 		dev_warn(&tp->pdev->dev, "No PHY devices\n");
@@ -1964,7 +1964,7 @@ static void tg3_setup_flow_control(struct tg3 *tp, u32 lcladv, u32 rmtadv)
 	u32 old_tx_mode = tp->tx_mode;
 
 	if (tg3_flag(tp, USE_PHYLIB))
-		autoneg = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]->autoneg;
+		autoneg = tp->mdio_bus->phy_map[tp->phy_addr]->autoneg;
 	else
 		autoneg = tp->link_config.autoneg;
 
@@ -2000,7 +2000,7 @@ static void tg3_adjust_link(struct net_device *dev)
 	u8 oldflowctrl, linkmesg = 0;
 	u32 mac_mode, lcl_adv, rmt_adv;
 	struct tg3 *tp = netdev_priv(dev);
-	struct phy_device *phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
+	struct phy_device *phydev = tp->mdio_bus->phy_map[tp->phy_addr];
 
 	spin_lock_bh(&tp->lock);
 
@@ -2089,7 +2089,7 @@ static int tg3_phy_init(struct tg3 *tp)
 	/* Bring the PHY back to a known state. */
 	tg3_bmcr_reset(tp);
 
-	phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
+	phydev = tp->mdio_bus->phy_map[tp->phy_addr];
 
 	/* Attach the MAC to the PHY. */
 	phydev = phy_connect(tp->dev, dev_name(&phydev->dev),
@@ -2116,7 +2116,7 @@ static int tg3_phy_init(struct tg3 *tp)
 				      SUPPORTED_Asym_Pause);
 		break;
 	default:
-		phy_disconnect(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
+		phy_disconnect(tp->mdio_bus->phy_map[tp->phy_addr]);
 		return -EINVAL;
 	}
 
@@ -2134,7 +2134,7 @@ static void tg3_phy_start(struct tg3 *tp)
 	if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
 		return;
 
-	phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
+	phydev = tp->mdio_bus->phy_map[tp->phy_addr];
 
 	if (tp->phy_flags & TG3_PHYFLG_IS_LOW_POWER) {
 		tp->phy_flags &= ~TG3_PHYFLG_IS_LOW_POWER;
@@ -2154,13 +2154,13 @@ static void tg3_phy_stop(struct tg3 *tp)
 	if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
 		return;
 
-	phy_stop(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
+	phy_stop(tp->mdio_bus->phy_map[tp->phy_addr]);
 }
 
 static void tg3_phy_fini(struct tg3 *tp)
 {
 	if (tp->phy_flags & TG3_PHYFLG_IS_CONNECTED) {
-		phy_disconnect(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
+		phy_disconnect(tp->mdio_bus->phy_map[tp->phy_addr]);
 		tp->phy_flags &= ~TG3_PHYFLG_IS_CONNECTED;
 	}
 }
@@ -4034,7 +4034,7 @@ static int tg3_power_down_prepare(struct tg3 *tp)
 			struct phy_device *phydev;
 			u32 phyid, advertising;
 
-			phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
+			phydev = tp->mdio_bus->phy_map[tp->phy_addr];
 
 			tp->phy_flags |= TG3_PHYFLG_IS_LOW_POWER;
 
@@ -11922,7 +11922,7 @@ static int tg3_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 		struct phy_device *phydev;
 		if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
 			return -EAGAIN;
-		phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
+		phydev = tp->mdio_bus->phy_map[tp->phy_addr];
 		return phy_ethtool_gset(phydev, cmd);
 	}
 
@@ -11989,7 +11989,7 @@ static int tg3_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
 		struct phy_device *phydev;
 		if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
 			return -EAGAIN;
-		phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
+		phydev = tp->mdio_bus->phy_map[tp->phy_addr];
 		return phy_ethtool_sset(phydev, cmd);
 	}
 
@@ -12144,7 +12144,7 @@ static int tg3_nway_reset(struct net_device *dev)
 	if (tg3_flag(tp, USE_PHYLIB)) {
 		if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
 			return -EAGAIN;
-		r = phy_start_aneg(tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR]);
+		r = phy_start_aneg(tp->mdio_bus->phy_map[tp->phy_addr]);
 	} else {
 		u32 bmcr;
 
@@ -12260,7 +12260,7 @@ static int tg3_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam
 		u32 newadv;
 		struct phy_device *phydev;
 
-		phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
+		phydev = tp->mdio_bus->phy_map[tp->phy_addr];
 
 		if (!(phydev->supported & SUPPORTED_Pause) ||
 		    (!(phydev->supported & SUPPORTED_Asym_Pause) &&
@@ -13696,7 +13696,7 @@ static int tg3_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 		struct phy_device *phydev;
 		if (!(tp->phy_flags & TG3_PHYFLG_IS_CONNECTED))
 			return -EAGAIN;
-		phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
+		phydev = tp->mdio_bus->phy_map[tp->phy_addr];
 		return phy_mii_ioctl(phydev, ifr, cmd);
 	}
 
@@ -17635,7 +17635,7 @@ static int tg3_init_one(struct pci_dev *pdev,
 
 	if (tp->phy_flags & TG3_PHYFLG_IS_CONNECTED) {
 		struct phy_device *phydev;
-		phydev = tp->mdio_bus->phy_map[TG3_PHY_MII_ADDR];
+		phydev = tp->mdio_bus->phy_map[tp->phy_addr];
 		netdev_info(dev,
 			    "attached PHY driver [%s] (mii_bus:phy_addr=%s)\n",
 			    phydev->drv->name, dev_name(&phydev->dev));
-- 
cgit 


From 4bcef89f0c6ca1eb4f1a789c2a226f4c02656a4b Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 28 Sep 2013 23:15:27 +0200
Subject: ssb: provide phy address for Gigabit Ethernet driver

Add a function to provide the phy address which should be used to the
Gigabit Ethernet driver connected to ssb.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Reviewed-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/ssb/ssb_driver_gige.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/include/linux/ssb/ssb_driver_gige.h b/include/linux/ssb/ssb_driver_gige.h
index 86a12b0cb239..0688472500bb 100644
--- a/include/linux/ssb/ssb_driver_gige.h
+++ b/include/linux/ssb/ssb_driver_gige.h
@@ -108,6 +108,16 @@ static inline int ssb_gige_get_macaddr(struct pci_dev *pdev, u8 *macaddr)
 	return 0;
 }
 
+/* Get the device phy address */
+static inline int ssb_gige_get_phyaddr(struct pci_dev *pdev)
+{
+	struct ssb_gige *dev = pdev_to_ssb_gige(pdev);
+	if (!dev)
+		return -ENODEV;
+
+	return dev->dev->bus->sprom.et0phyaddr;
+}
+
 extern int ssb_gige_pcibios_plat_dev_init(struct ssb_device *sdev,
 					  struct pci_dev *pdev);
 extern int ssb_gige_map_irq(struct ssb_device *sdev,
@@ -174,6 +184,10 @@ static inline int ssb_gige_get_macaddr(struct pci_dev *pdev, u8 *macaddr)
 {
 	return -ENODEV;
 }
+static inline int ssb_gige_get_phyaddr(struct pci_dev *pdev)
+{
+	return -ENODEV;
+}
 
 #endif /* CONFIG_SSB_DRIVER_GIGE */
 #endif /* LINUX_SSB_DRIVER_GIGE_H_ */
-- 
cgit 


From ee002b64ec81db846b5518d73fd724a53b27fbf2 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 28 Sep 2013 23:15:28 +0200
Subject: tg3: use phylib when robo switch is in use

When a switch is connected as a PHY to the MAC driven by tg3, use
phylib and provide the phy address to tg3 from the sprom.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/tg3.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 853a05e0691f..a17a3c93e398 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -1513,6 +1513,13 @@ static int tg3_mdio_init(struct tg3 *tp)
 				    TG3_CPMU_PHY_STRAP_IS_SERDES;
 		if (is_serdes)
 			tp->phy_addr += 7;
+	} else if (tg3_flag(tp, IS_SSB_CORE) && tg3_flag(tp, ROBOSWITCH)) {
+		int addr;
+
+		addr = ssb_gige_get_phyaddr(tp->pdev);
+		if (addr < 0)
+			return addr;
+		tp->phy_addr = addr;
 	} else
 		tp->phy_addr = TG3_PHY_MII_ADDR;
 
@@ -17366,8 +17373,10 @@ static int tg3_init_one(struct pci_dev *pdev,
 			tg3_flag_set(tp, FLUSH_POSTED_WRITES);
 		if (ssb_gige_one_dma_at_once(pdev))
 			tg3_flag_set(tp, ONE_DMA_AT_ONCE);
-		if (ssb_gige_have_roboswitch(pdev))
+		if (ssb_gige_have_roboswitch(pdev)) {
+			tg3_flag_set(tp, USE_PHYLIB);
 			tg3_flag_set(tp, ROBOSWITCH);
+		}
 		if (ssb_gige_is_rgmii(pdev))
 			tg3_flag_set(tp, RGMII_MODE);
 	}
-- 
cgit 


From 99d3d587b2b4314ccc8ea066cb327dfb523d598e Mon Sep 17 00:00:00 2001
From: Wei Liu <wei.liu2@citrix.com>
Date: Mon, 30 Sep 2013 13:46:34 +0100
Subject: xen-netfront: convert to GRO API

Anirban was seeing netfront received MTU size packets, which downgraded
throughput. The following patch makes netfront use GRO API which
improves throughput for that case.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Cc: Anirban Chakraborty <abchak@juniper.net>
Cc: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Konrad Wilk <konrad.wilk@oracle.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/xen-netfront.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 36808bf25677..dd1011e55cb5 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -952,7 +952,7 @@ static int handle_incoming_queue(struct net_device *dev,
 		u64_stats_update_end(&stats->syncp);
 
 		/* Pass it up. */
-		netif_receive_skb(skb);
+		napi_gro_receive(&np->napi, skb);
 	}
 
 	return packets_dropped;
@@ -1051,6 +1051,8 @@ err:
 	if (work_done < budget) {
 		int more_to_do = 0;
 
+		napi_gro_flush(napi, false);
+
 		local_irq_save(flags);
 
 		RING_FINAL_CHECK_FOR_RESPONSES(&np->rx, more_to_do);
-- 
cgit 


From 84557783c5574f436826d88cd1bd035f20a4427f Mon Sep 17 00:00:00 2001
From: Jesper Juhl <jj@chaosbits.net>
Date: Mon, 30 Sep 2013 21:25:27 +0200
Subject: isdn: eicon: free pointer after using it in log msg in
 divas_um_idi_delete_entity()

Not really a problem, but nice IMHO; the Coverity static analyzer
complains that we use the pointer 'e' after it has been freed, so move
the freeing below the final use, even if that use is just using the
value of the pointer and not actually dereferencing it.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/isdn/hardware/eicon/um_idi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/isdn/hardware/eicon/um_idi.c b/drivers/isdn/hardware/eicon/um_idi.c
index 7cab5c3276c2..e1519718ce67 100644
--- a/drivers/isdn/hardware/eicon/um_idi.c
+++ b/drivers/isdn/hardware/eicon/um_idi.c
@@ -288,9 +288,9 @@ int divas_um_idi_delete_entity(int adapter_nr, void *entity)
 	cleanup_entity(e);
 	diva_os_free(0, e->os_context);
 	memset(e, 0x00, sizeof(*e));
-	diva_os_free(0, e);
 
 	DBG_LOG(("A(%d) remove E:%08x", adapter_nr, e));
+	diva_os_free(0, e);
 
 	return (0);
 }
-- 
cgit 


From 3b1662952ea9c2c32aac11d60f824fb94b2cf546 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 2 Oct 2013 08:28:21 -0700
Subject: Bluetooth: Fix memory leak with L2CAP signal channels

The wrong type of L2CAP signalling packets on the wrong type of
either BR/EDR or LE links need to be dropped. When that happens
the packet is dropped, but the memory not freed. So actually
free the memory as well.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 net/bluetooth/l2cap_core.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 6d42498e862b..814563d15476 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -5330,7 +5330,7 @@ static inline void l2cap_le_sig_channel(struct l2cap_conn *conn,
 	l2cap_raw_recv(conn, skb);
 
 	if (hcon->type != LE_LINK)
-		return;
+		goto drop;
 
 	while (len >= L2CAP_CMD_HDR_SIZE) {
 		u16 cmd_len;
@@ -5363,6 +5363,7 @@ static inline void l2cap_le_sig_channel(struct l2cap_conn *conn,
 		len  -= cmd_len;
 	}
 
+drop:
 	kfree_skb(skb);
 }
 
@@ -5378,7 +5379,7 @@ static inline void l2cap_sig_channel(struct l2cap_conn *conn,
 	l2cap_raw_recv(conn, skb);
 
 	if (hcon->type != ACL_LINK)
-		return;
+		goto drop;
 
 	while (len >= L2CAP_CMD_HDR_SIZE) {
 		u16 cmd_len;
@@ -5411,6 +5412,7 @@ static inline void l2cap_sig_channel(struct l2cap_conn *conn,
 		len  -= cmd_len;
 	}
 
+drop:
 	kfree_skb(skb);
 }
 
-- 
cgit 


From 97e47fa11deae10ae72aa1109e700565c57152f5 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 16 Sep 2013 10:57:01 -0400
Subject: nfsd: switch to %p[dD]

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/nfsd/nfs4recover.c | 12 ++++++------
 fs/nfsd/nfs4state.c   | 15 ++++++---------
 fs/nfsd/nfsfh.c       | 28 +++++++++++++---------------
 fs/nfsd/nfsfh.h       |  4 ++--
 fs/nfsd/vfs.c         |  9 ++++-----
 5 files changed, 31 insertions(+), 37 deletions(-)

diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index e0a65a9e37e9..9c271f42604a 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -385,8 +385,8 @@ purge_old(struct dentry *parent, struct dentry *child, struct nfsd_net *nn)
 
 	status = vfs_rmdir(parent->d_inode, child);
 	if (status)
-		printk("failed to remove client recovery directory %s\n",
-				child->d_name.name);
+		printk("failed to remove client recovery directory %pd\n",
+				child);
 	/* Keep trying, success or failure: */
 	return 0;
 }
@@ -410,15 +410,15 @@ out:
 	nfs4_release_reclaim(nn);
 	if (status)
 		printk("nfsd4: failed to purge old clients from recovery"
-			" directory %s\n", nn->rec_file->f_path.dentry->d_name.name);
+			" directory %pD\n", nn->rec_file);
 }
 
 static int
 load_recdir(struct dentry *parent, struct dentry *child, struct nfsd_net *nn)
 {
 	if (child->d_name.len != HEXDIR_LEN - 1) {
-		printk("nfsd4: illegal name %s in recovery directory\n",
-				child->d_name.name);
+		printk("nfsd4: illegal name %pd in recovery directory\n",
+				child);
 		/* Keep trying; maybe the others are OK: */
 		return 0;
 	}
@@ -437,7 +437,7 @@ nfsd4_recdir_load(struct net *net) {
 	status = nfsd4_list_rec_dir(load_recdir, nn);
 	if (status)
 		printk("nfsd4: failed loading clients from recovery"
-			" directory %s\n", nn->rec_file->f_path.dentry->d_name.name);
+			" directory %pD\n", nn->rec_file);
 	return status;
 }
 
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 0874998a49cd..a601fd49f997 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3843,9 +3843,8 @@ nfsd4_open_confirm(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 	struct nfs4_ol_stateid *stp;
 	struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
 
-	dprintk("NFSD: nfsd4_open_confirm on file %.*s\n",
-			(int)cstate->current_fh.fh_dentry->d_name.len,
-			cstate->current_fh.fh_dentry->d_name.name);
+	dprintk("NFSD: nfsd4_open_confirm on file %pd\n",
+			cstate->current_fh.fh_dentry);
 
 	status = fh_verify(rqstp, &cstate->current_fh, S_IFREG, 0);
 	if (status)
@@ -3922,9 +3921,8 @@ nfsd4_open_downgrade(struct svc_rqst *rqstp,
 	struct nfs4_ol_stateid *stp;
 	struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
 
-	dprintk("NFSD: nfsd4_open_downgrade on file %.*s\n", 
-			(int)cstate->current_fh.fh_dentry->d_name.len,
-			cstate->current_fh.fh_dentry->d_name.name);
+	dprintk("NFSD: nfsd4_open_downgrade on file %pd\n", 
+			cstate->current_fh.fh_dentry);
 
 	/* We don't yet support WANT bits: */
 	if (od->od_deleg_want)
@@ -3980,9 +3978,8 @@ nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 	struct net *net = SVC_NET(rqstp);
 	struct nfsd_net *nn = net_generic(net, nfsd_net_id);
 
-	dprintk("NFSD: nfsd4_close on file %.*s\n", 
-			(int)cstate->current_fh.fh_dentry->d_name.len,
-			cstate->current_fh.fh_dentry->d_name.name);
+	dprintk("NFSD: nfsd4_close on file %pd\n", 
+			cstate->current_fh.fh_dentry);
 
 	nfs4_lock_state();
 	status = nfs4_preprocess_seqid_op(cstate, close->cl_seqid,
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index 814afaa4458a..3d0e15ae6f72 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -47,7 +47,7 @@ static int nfsd_acceptable(void *expv, struct dentry *dentry)
 		tdentry = parent;
 	}
 	if (tdentry != exp->ex_path.dentry)
-		dprintk("nfsd_acceptable failed at %p %s\n", tdentry, tdentry->d_name.name);
+		dprintk("nfsd_acceptable failed at %p %pd\n", tdentry, tdentry);
 	rv = (tdentry == exp->ex_path.dentry);
 	dput(tdentry);
 	return rv;
@@ -253,8 +253,8 @@ static __be32 nfsd_set_fh_dentry(struct svc_rqst *rqstp, struct svc_fh *fhp)
 
 	if (S_ISDIR(dentry->d_inode->i_mode) &&
 			(dentry->d_flags & DCACHE_DISCONNECTED)) {
-		printk("nfsd: find_fh_dentry returned a DISCONNECTED directory: %s/%s\n",
-				dentry->d_parent->d_name.name, dentry->d_name.name);
+		printk("nfsd: find_fh_dentry returned a DISCONNECTED directory: %pd2\n",
+				dentry);
 	}
 
 	fhp->fh_dentry = dentry;
@@ -361,10 +361,9 @@ skip_pseudoflavor_check:
 	error = nfsd_permission(rqstp, exp, dentry, access);
 
 	if (error) {
-		dprintk("fh_verify: %s/%s permission failure, "
+		dprintk("fh_verify: %pd2 permission failure, "
 			"acc=%x, error=%d\n",
-			dentry->d_parent->d_name.name,
-			dentry->d_name.name,
+			dentry,
 			access, ntohl(error));
 	}
 out:
@@ -514,14 +513,13 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry,
 	 */
 
 	struct inode * inode = dentry->d_inode;
-	struct dentry *parent = dentry->d_parent;
 	__u32 *datap;
 	dev_t ex_dev = exp_sb(exp)->s_dev;
 
-	dprintk("nfsd: fh_compose(exp %02x:%02x/%ld %s/%s, ino=%ld)\n",
+	dprintk("nfsd: fh_compose(exp %02x:%02x/%ld %pd2, ino=%ld)\n",
 		MAJOR(ex_dev), MINOR(ex_dev),
 		(long) exp->ex_path.dentry->d_inode->i_ino,
-		parent->d_name.name, dentry->d_name.name,
+		dentry,
 		(inode ? inode->i_ino : 0));
 
 	/* Choose filehandle version and fsid type based on
@@ -534,13 +532,13 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry,
 		fh_put(ref_fh);
 
 	if (fhp->fh_locked || fhp->fh_dentry) {
-		printk(KERN_ERR "fh_compose: fh %s/%s not initialized!\n",
-		       parent->d_name.name, dentry->d_name.name);
+		printk(KERN_ERR "fh_compose: fh %pd2 not initialized!\n",
+		       dentry);
 	}
 	if (fhp->fh_maxsize < NFS_FHSIZE)
-		printk(KERN_ERR "fh_compose: called with maxsize %d! %s/%s\n",
+		printk(KERN_ERR "fh_compose: called with maxsize %d! %pd2\n",
 		       fhp->fh_maxsize,
-		       parent->d_name.name, dentry->d_name.name);
+		       dentry);
 
 	fhp->fh_dentry = dget(dentry); /* our internal copy */
 	fhp->fh_export = exp;
@@ -613,8 +611,8 @@ out_bad:
 	printk(KERN_ERR "fh_update: fh not verified!\n");
 	goto out;
 out_negative:
-	printk(KERN_ERR "fh_update: %s/%s still negative!\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name);
+	printk(KERN_ERR "fh_update: %pd2 still negative!\n",
+		dentry);
 	goto out;
 }
 
diff --git a/fs/nfsd/nfsfh.h b/fs/nfsd/nfsfh.h
index e5e6707ba687..4775bc4896c8 100644
--- a/fs/nfsd/nfsfh.h
+++ b/fs/nfsd/nfsfh.h
@@ -173,8 +173,8 @@ fh_lock_nested(struct svc_fh *fhp, unsigned int subclass)
 	BUG_ON(!dentry);
 
 	if (fhp->fh_locked) {
-		printk(KERN_WARNING "fh_lock: %s/%s already locked!\n",
-			dentry->d_parent->d_name.name, dentry->d_name.name);
+		printk(KERN_WARNING "fh_lock: %pd2 already locked!\n",
+			dentry);
 		return;
 	}
 
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index c827acb0e943..13886f7f40d5 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1317,9 +1317,8 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
 		if (!fhp->fh_locked) {
 			/* not actually possible */
 			printk(KERN_ERR
-				"nfsd_create: parent %s/%s not locked!\n",
-				dentry->d_parent->d_name.name,
-				dentry->d_name.name);
+				"nfsd_create: parent %pd2 not locked!\n",
+				dentry);
 			err = nfserr_io;
 			goto out;
 		}
@@ -1329,8 +1328,8 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
 	 */
 	err = nfserr_exist;
 	if (dchild->d_inode) {
-		dprintk("nfsd_create: dentry %s/%s not negative!\n",
-			dentry->d_name.name, dchild->d_name.name);
+		dprintk("nfsd_create: dentry %pd/%pd not negative!\n",
+			dentry, dchild);
 		goto out; 
 	}
 
-- 
cgit 


From bbe34cf8a1a2cc174e6516fc230b91b531da7ddf Mon Sep 17 00:00:00 2001
From: "baker.zhang" <baker.kernel@gmail.com>
Date: Tue, 1 Oct 2013 07:45:09 +0800
Subject: fib_trie: avoid a redundant bit judgement in inflate

Because 'node' is the i'st child of 'oldnode',
thus, here 'i' equals
tkey_extract_bits(node->key, oldtnode->pos, oldtnode->bits)

we just get 1 more bit,
and need not care the detail value of this bits.

I apologize for the mistake.

I generated the patch on a branch version,
and did not notice the put_child has been changed.

I have redone the test on HEAD version with my patch.

two cases are used.
case 1. inflate a node which has a leaf child node.
case 2: inflate a node which has a an child node with skipped bits

test env:
  ip link set eth0 up
  ip a add dev eth0 192.168.11.1/32
here, we just focus on route table(MAIN),
so I use a "192.168.11.1/32" address to simplify the test case.

call trace:
+ fib_insert_node
+ + trie_rebalance
+ + + resize
+ + + + inflate

Test case 1:  inflate a node which has a leaf child node.

===========================================================
step 1. prepare a fib trie
------------------------------------------
  ip r a 192.168.0.0/24 via 192.168.11.1
  ip r a 192.168.1.0/24 via 192.168.11.1

we get a fib trie.
root@baker:~# cat /proc/net/fib_trie
Main:
  +-- 192.168.0.0/23 1 0 0
   |-- 192.168.0.0
    /24 universe UNICAST
   |-- 192.168.1.0
    /24 universe UNICAST
Local:
.....

step 2. Add the third route
------------------------------------------
root@baker:~# ip r a 192.168.2.0/24 via 192.168.11.1

A fib_trie leaf will be inserted in fib_insert_node before trie_rebalance.

For function 'inflate':
'inflate' is called with following trie.
  +-- 192.168.0.0/22 1 1 0 <=== tn node
    +-- 192.168.0.0/23 1 0 0    <== node a
        |-- 192.168.0.0
          /24 universe UNICAST
        |-- 192.168.1.0
          /24 universe UNICAST
      |-- 192.168.2.0          <== leaf(node b)

When process node b, which is a leaf. here:
i is 1,
node key "192.168.2.0"
oldnode is (pos:22, bits:1)

unpatch source:
tkey_extract_bits(node->key, oldtnode->pos + oldtnode->bits, 1)
it equals:
tkey_extract_bits("192.168,2,0", 22 + 1, 1)

thus got 0, and call put_child(tn, 2*i, node); <== 2*i=2.

patched source:
tkey_extract_bits(node->key, oldtnode->pos, oldtnode->bits + 1),
tkey_extract_bits("192.168,2,0", 22, 1 + 1)  <== get 2.

Test case 2:  inflate a node which has a an child node with skipped bits
==========================================================================
step 1. prepare a fib trie.
  ip link set eth0 up
  ip a add dev eth0 192.168.11.1/32
  ip r a 192.168.128.0/24 via 192.168.11.1
  ip r a 192.168.0.0/24  via 192.168.11.1
  ip r a 192.168.16.0/24   via 192.168.11.1
  ip r a 192.168.32.0/24  via 192.168.11.1
  ip r a 192.168.48.0/24  via 192.168.11.1
  ip r a 192.168.144.0/24   via 192.168.11.1
  ip r a 192.168.160.0/24   via 192.168.11.1
  ip r a 192.168.176.0/24   via 192.168.11.1

check:
root@baker:~# cat /proc/net/fib_trie
Main:
  +-- 192.168.0.0/16 1 0 0
     +-- 192.168.0.0/18 2 0 0
        |-- 192.168.0.0
           /24 universe UNICAST
        |-- 192.168.16.0
           /24 universe UNICAST
        |-- 192.168.32.0
           /24 universe UNICAST
        |-- 192.168.48.0
           /24 universe UNICAST
     +-- 192.168.128.0/18 2 0 0
        |-- 192.168.128.0
           /24 universe UNICAST
        |-- 192.168.144.0
           /24 universe UNICAST
        |-- 192.168.160.0
           /24 universe UNICAST
        |-- 192.168.176.0
           /24 universe UNICAST
Local:
  ...

step 2. add a route to trigger inflate.
  ip r a 192.168.96.0/24   via 192.168.11.1

This command will call serveral times inflate.
In the first time, the fib_trie is:
________________________
+-- 192.168.128.0/(16, 1) <== tn node
 +-- 192.168.0.0/(17, 1)  <== node a
  +-- 192.168.0.0/(18, 2)
   |-- 192.168.0.0
   |-- 192.168.16.0
   |-- 192.168.32.0
   |-- 192.168.48.0
  |-- 192.168.96.0
 +-- 192.168.128.0/(18, 2) <== node b.
  |-- 192.168.128.0
  |-- 192.168.144.0
  |-- 192.168.160.0
  |-- 192.168.176.0

NOTE: node b is a interal node with skipped bits.
here,
i:1,
node->key "192.168.128.0",
oldnode:(pos:16, bits:1)
so
tkey_extract_bits(node->key, oldtnode->pos + oldtnode->bits, 1)
it equals:
tkey_extract_bits("192.168,128,0", 16 + 1, 1) <=== 0

tkey_extract_bits(node->key, oldtnode->pos, oldtnode->bits, 1)
it equals:
tkey_extract_bits("192.168,128,0", 16, 1+1) <=== 2

2*i + 0 == 2, so the result is same.

Signed-off-by: baker.zhang <baker.kernel@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/fib_trie.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 3df6d3edb2a1..45c74ba03970 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -762,12 +762,9 @@ static struct tnode *inflate(struct trie *t, struct tnode *tn)
 
 		if (IS_LEAF(node) || ((struct tnode *) node)->pos >
 		   tn->pos + tn->bits - 1) {
-			if (tkey_extract_bits(node->key,
-					      oldtnode->pos + oldtnode->bits,
-					      1) == 0)
-				put_child(tn, 2*i, node);
-			else
-				put_child(tn, 2*i+1, node);
+			put_child(tn,
+				tkey_extract_bits(node->key, oldtnode->pos, oldtnode->bits + 1),
+				node);
 			continue;
 		}
 
-- 
cgit 


From 6ae705323b716ea7a8cc26bee79176398a9b2e89 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 1 Oct 2013 10:23:44 -0700
Subject: tcp: sndbuf autotuning improvements
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

tcp_fixup_sndbuf() is underestimating initial send buffer requirements.

It was not noticed because big GSO packets were escaping the limitation,
but with smaller TSO packets (or TSO/GSO/SG off), application hits
sk_sndbuf before having a chance to fill enough packets in socket write
queue.

- initial cwnd can be bigger than 10 for specific routes

- SKB_TRUESIZE() is a bit under real needs in some cases,
  because of power-of-two rounding in kmalloc()

- Fast Recovery (RFC 5681 3.2) : Cubic needs 70% factor

- Extra cushion (application might react slowly to POLLOUT)

tcp_v4_conn_req_fastopen() needs to call tcp_init_metrics() before
calling tcp_init_buffer_space()

Then we realize tcp_new_space() should call tcp_fixup_sndbuf()
instead of duplicating this stuff.

Rename tcp_fixup_sndbuf() to tcp_sndbuf_expand() to be more
descriptive.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/tcp_input.c | 38 +++++++++++++++++++++++++-------------
 net/ipv4/tcp_ipv4.c  |  2 +-
 2 files changed, 26 insertions(+), 14 deletions(-)

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 66aa816ad30b..cd65674ece92 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -267,11 +267,31 @@ static bool TCP_ECN_rcv_ecn_echo(const struct tcp_sock *tp, const struct tcphdr
  * 1. Tuning sk->sk_sndbuf, when connection enters established state.
  */
 
-static void tcp_fixup_sndbuf(struct sock *sk)
+static void tcp_sndbuf_expand(struct sock *sk)
 {
-	int sndmem = SKB_TRUESIZE(tcp_sk(sk)->rx_opt.mss_clamp + MAX_TCP_HEADER);
+	const struct tcp_sock *tp = tcp_sk(sk);
+	int sndmem, per_mss;
+	u32 nr_segs;
+
+	/* Worst case is non GSO/TSO : each frame consumes one skb
+	 * and skb->head is kmalloced using power of two area of memory
+	 */
+	per_mss = max_t(u32, tp->rx_opt.mss_clamp, tp->mss_cache) +
+		  MAX_TCP_HEADER +
+		  SKB_DATA_ALIGN(sizeof(struct skb_shared_info));
+
+	per_mss = roundup_pow_of_two(per_mss) +
+		  SKB_DATA_ALIGN(sizeof(struct sk_buff));
+
+	nr_segs = max_t(u32, TCP_INIT_CWND, tp->snd_cwnd);
+	nr_segs = max_t(u32, nr_segs, tp->reordering + 1);
+
+	/* Fast Recovery (RFC 5681 3.2) :
+	 * Cubic needs 1.7 factor, rounded to 2 to include
+	 * extra cushion (application might react slowly to POLLOUT)
+	 */
+	sndmem = 2 * nr_segs * per_mss;
 
-	sndmem *= TCP_INIT_CWND;
 	if (sk->sk_sndbuf < sndmem)
 		sk->sk_sndbuf = min(sndmem, sysctl_tcp_wmem[2]);
 }
@@ -376,7 +396,7 @@ void tcp_init_buffer_space(struct sock *sk)
 	if (!(sk->sk_userlocks & SOCK_RCVBUF_LOCK))
 		tcp_fixup_rcvbuf(sk);
 	if (!(sk->sk_userlocks & SOCK_SNDBUF_LOCK))
-		tcp_fixup_sndbuf(sk);
+		tcp_sndbuf_expand(sk);
 
 	tp->rcvq_space.space = tp->rcv_wnd;
 	tp->rcvq_space.time = tcp_time_stamp;
@@ -4723,15 +4743,7 @@ static void tcp_new_space(struct sock *sk)
 	struct tcp_sock *tp = tcp_sk(sk);
 
 	if (tcp_should_expand_sndbuf(sk)) {
-		int sndmem = SKB_TRUESIZE(max_t(u32,
-						tp->rx_opt.mss_clamp,
-						tp->mss_cache) +
-					  MAX_TCP_HEADER);
-		int demanded = max_t(unsigned int, tp->snd_cwnd,
-				     tp->reordering + 1);
-		sndmem *= 2 * demanded;
-		if (sndmem > sk->sk_sndbuf)
-			sk->sk_sndbuf = min(sndmem, sysctl_tcp_wmem[2]);
+		tcp_sndbuf_expand(sk);
 		tp->snd_cwnd_stamp = tcp_time_stamp;
 	}
 
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index b14266bb91eb..5d6b1a609da8 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1410,8 +1410,8 @@ static int tcp_v4_conn_req_fastopen(struct sock *sk,
 	inet_csk(child)->icsk_af_ops->rebuild_header(child);
 	tcp_init_congestion_control(child);
 	tcp_mtup_init(child);
-	tcp_init_buffer_space(child);
 	tcp_init_metrics(child);
+	tcp_init_buffer_space(child);
 
 	/* Queue the data carried in the SYN packet. We need to first
 	 * bump skb's refcnt because the caller will attempt to free it.
-- 
cgit 


From 0b3d8e087bbee2a4e3f479d538a7edd3f1d2950c Mon Sep 17 00:00:00 2001
From: Denis Kirjanov <kda@linux-powerpc.org>
Date: Wed, 2 Oct 2013 05:58:32 +0400
Subject: include/linux/skbuff.h: move CONFIG_XFRM check inside the
 skb_sec_path()

And thus we have only one function definition

Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/skbuff.h | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 71b1d9402fd3..1cd32f96055e 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2708,17 +2708,14 @@ static inline bool skb_rx_queue_recorded(const struct sk_buff *skb)
 u16 __skb_tx_hash(const struct net_device *dev, const struct sk_buff *skb,
 		  unsigned int num_tx_queues);
 
-#ifdef CONFIG_XFRM
 static inline struct sec_path *skb_sec_path(struct sk_buff *skb)
 {
+#ifdef CONFIG_XFRM
 	return skb->sp;
-}
 #else
-static inline struct sec_path *skb_sec_path(struct sk_buff *skb)
-{
 	return NULL;
-}
 #endif
+}
 
 /* Keeps track of mac header offset relative to skb->head.
  * It is useful for TSO of Tunneling protocol. e.g. GRE.
-- 
cgit 


From d458cdf712e0c671e8e819abb16ecd6e44f9daec Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 1 Oct 2013 19:04:40 -0700
Subject: net:drivers/net: Miscellaneous conversions to ETH_ALEN

Convert the memset/memcpy uses of 6 to ETH_ALEN
where appropriate.

Also convert some struct definitions and u8 array
declarations of [6] to ETH_ALEN.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/8390/ax88796.c                |  2 +-
 drivers/net/ethernet/amd/atarilance.c              |  4 +-
 drivers/net/ethernet/amd/au1000_eth.c              |  2 +-
 drivers/net/ethernet/amd/pcnet32.c                 |  2 +-
 drivers/net/ethernet/apple/bmac.c                  |  4 +-
 drivers/net/ethernet/broadcom/b44.c                |  2 +-
 drivers/net/ethernet/broadcom/bnx2.c               |  6 +-
 drivers/net/ethernet/broadcom/cnic.c               |  4 +-
 drivers/net/ethernet/broadcom/tg3.c                | 10 +--
 drivers/net/ethernet/chelsio/cxgb/pm3393.c         |  4 +-
 drivers/net/ethernet/davicom/dm9000.c              |  2 +-
 .../net/ethernet/freescale/fs_enet/fs_enet-main.c  |  2 +-
 drivers/net/ethernet/freescale/ucc_geth.c          |  2 +-
 drivers/net/ethernet/i825xx/82596.c                |  4 +-
 drivers/net/ethernet/i825xx/lib82596.c             |  6 +-
 drivers/net/ethernet/ibm/emac/core.c               |  2 +-
 drivers/net/ethernet/ibm/ibmveth.c                 |  4 +-
 drivers/net/ethernet/intel/igb/igb_main.c          |  2 +-
 drivers/net/ethernet/intel/igbvf/vf.c              |  4 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c     |  9 +--
 drivers/net/ethernet/intel/ixgbevf/vf.c            |  4 +-
 drivers/net/ethernet/jme.c                         |  4 +-
 drivers/net/ethernet/korina.c                      |  2 +-
 drivers/net/ethernet/marvell/mv643xx_eth.c         |  4 +-
 drivers/net/ethernet/micrel/ks8851_mll.c           |  4 +-
 drivers/net/ethernet/myricom/myri10ge/myri10ge.c   |  4 +-
 drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c |  2 +-
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c     |  2 +-
 drivers/net/ethernet/renesas/sh_eth.c              |  2 +-
 drivers/net/ethernet/sgi/meth.c                    |  2 +-
 drivers/net/ethernet/smsc/smsc911x.c               |  2 +-
 drivers/net/ethernet/sun/cassini.c                 |  2 +-
 drivers/net/ethernet/sun/sungem.c                  |  2 +-
 drivers/net/ethernet/sun/sunhme.c                  | 10 +--
 drivers/net/ethernet/sun/sunqe.c                   |  2 +-
 drivers/net/ethernet/ti/davinci_emac.c             |  2 +-
 drivers/net/ethernet/tile/tilegx.c                 |  2 +-
 drivers/net/ethernet/xilinx/xilinx_emaclite.c      |  2 +-
 drivers/net/fddi/skfp/fplustm.c                    |  2 +-
 drivers/net/fddi/skfp/skfddi.c                     |  6 +-
 drivers/net/plip/plip.c                            |  2 +-
 drivers/net/usb/catc.c                             |  8 +-
 drivers/net/wireless/ath/ath10k/wmi.c              |  2 +-
 drivers/net/wireless/ath/wil6210/cfg80211.c        |  4 +-
 drivers/net/wireless/atmel.c                       | 92 +++++++++++-----------
 drivers/net/wireless/b43/xmit.c                    |  2 +-
 drivers/net/wireless/b43legacy/xmit.c              |  2 +-
 drivers/net/wireless/brcm80211/brcmsmac/main.c     |  6 +-
 drivers/net/wireless/hostap/hostap_info.c          |  2 +-
 drivers/net/wireless/ipw2x00/ipw2200.c             |  2 +-
 drivers/net/wireless/prism54/isl_ioctl.c           | 10 +--
 drivers/net/wireless/prism54/islpci_dev.c          |  2 +-
 drivers/net/wireless/prism54/oid_mgt.c             |  2 +-
 drivers/net/wireless/rtlwifi/core.c                | 10 +--
 net/bridge/br_multicast.c                          |  4 +-
 net/bridge/netfilter/ebt_among.c                   |  2 +-
 net/mac80211/trace.h                               |  4 +-
 57 files changed, 146 insertions(+), 149 deletions(-)

diff --git a/drivers/net/ethernet/8390/ax88796.c b/drivers/net/ethernet/8390/ax88796.c
index f92f001551da..36fa577970bb 100644
--- a/drivers/net/ethernet/8390/ax88796.c
+++ b/drivers/net/ethernet/8390/ax88796.c
@@ -702,7 +702,7 @@ static int ax_init_dev(struct net_device *dev)
 			for (i = 0; i < 16; i++)
 				SA_prom[i] = SA_prom[i+i];
 
-		memcpy(dev->dev_addr, SA_prom, 6);
+		memcpy(dev->dev_addr, SA_prom, ETH_ALEN);
 	}
 
 #ifdef CONFIG_AX88796_93CX6
diff --git a/drivers/net/ethernet/amd/atarilance.c b/drivers/net/ethernet/amd/atarilance.c
index 10ceca523fc0..e07ce5ff2d48 100644
--- a/drivers/net/ethernet/amd/atarilance.c
+++ b/drivers/net/ethernet/amd/atarilance.c
@@ -586,10 +586,10 @@ static unsigned long __init lance_probe1( struct net_device *dev,
 	switch( lp->cardtype ) {
 	  case OLD_RIEBL:
 		/* No ethernet address! (Set some default address) */
-		memcpy( dev->dev_addr, OldRieblDefHwaddr, 6 );
+		memcpy(dev->dev_addr, OldRieblDefHwaddr, ETH_ALEN);
 		break;
 	  case NEW_RIEBL:
-		lp->memcpy_f( dev->dev_addr, RIEBL_HWADDR_ADDR, 6 );
+		lp->memcpy_f(dev->dev_addr, RIEBL_HWADDR_ADDR, ETH_ALEN);
 		break;
 	  case PAM_CARD:
 		i = IO->eeprom;
diff --git a/drivers/net/ethernet/amd/au1000_eth.c b/drivers/net/ethernet/amd/au1000_eth.c
index 91d52b495848..427c148bb643 100644
--- a/drivers/net/ethernet/amd/au1000_eth.c
+++ b/drivers/net/ethernet/amd/au1000_eth.c
@@ -1138,7 +1138,7 @@ static int au1000_probe(struct platform_device *pdev)
 		aup->phy1_search_mac0 = 1;
 	} else {
 		if (is_valid_ether_addr(pd->mac)) {
-			memcpy(dev->dev_addr, pd->mac, 6);
+			memcpy(dev->dev_addr, pd->mac, ETH_ALEN);
 		} else {
 			/* Set a random MAC since no valid provided by platform_data. */
 			eth_hw_addr_random(dev);
diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c
index 2d8e28819779..bd4e6402003a 100644
--- a/drivers/net/ethernet/amd/pcnet32.c
+++ b/drivers/net/ethernet/amd/pcnet32.c
@@ -1675,7 +1675,7 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
 				pr_cont(" warning: CSR address invalid,\n");
 				pr_info("    using instead PROM address of");
 			}
-			memcpy(dev->dev_addr, promaddr, 6);
+			memcpy(dev->dev_addr, promaddr, ETH_ALEN);
 		}
 	}
 
diff --git a/drivers/net/ethernet/apple/bmac.c b/drivers/net/ethernet/apple/bmac.c
index a597b766f080..daae0e016253 100644
--- a/drivers/net/ethernet/apple/bmac.c
+++ b/drivers/net/ethernet/apple/bmac.c
@@ -1220,8 +1220,8 @@ static void bmac_reset_and_enable(struct net_device *dev)
 	if (skb != NULL) {
 		data = skb_put(skb, ETHERMINPACKET);
 		memset(data, 0, ETHERMINPACKET);
-		memcpy(data, dev->dev_addr, 6);
-		memcpy(data+6, dev->dev_addr, 6);
+		memcpy(data, dev->dev_addr, ETH_ALEN);
+		memcpy(data + ETH_ALEN, dev->dev_addr, ETH_ALEN);
 		bmac_transmit_packet(skb, dev);
 	}
 	spin_unlock_irqrestore(&bp->lock, flags);
diff --git a/drivers/net/ethernet/broadcom/b44.c b/drivers/net/ethernet/broadcom/b44.c
index c96930f12932..079a597fa20c 100644
--- a/drivers/net/ethernet/broadcom/b44.c
+++ b/drivers/net/ethernet/broadcom/b44.c
@@ -2111,7 +2111,7 @@ static int b44_get_invariants(struct b44 *bp)
 	 * valid PHY address. */
 	bp->phy_addr &= 0x1F;
 
-	memcpy(bp->dev->dev_addr, addr, 6);
+	memcpy(bp->dev->dev_addr, addr, ETH_ALEN);
 
 	if (!is_valid_ether_addr(&bp->dev->dev_addr[0])){
 		pr_err("Invalid MAC address found in EEPROM\n");
diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c
index e838a3f74b69..61118708fe98 100644
--- a/drivers/net/ethernet/broadcom/bnx2.c
+++ b/drivers/net/ethernet/broadcom/bnx2.c
@@ -5761,8 +5761,8 @@ bnx2_run_loopback(struct bnx2 *bp, int loopback_mode)
 	if (!skb)
 		return -ENOMEM;
 	packet = skb_put(skb, pkt_size);
-	memcpy(packet, bp->dev->dev_addr, 6);
-	memset(packet + 6, 0x0, 8);
+	memcpy(packet, bp->dev->dev_addr, ETH_ALEN);
+	memset(packet + ETH_ALEN, 0x0, 8);
 	for (i = 14; i < pkt_size; i++)
 		packet[i] = (unsigned char) (i & 0xff);
 
@@ -8514,7 +8514,7 @@ bnx2_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	pci_set_drvdata(pdev, dev);
 
-	memcpy(dev->dev_addr, bp->mac_addr, 6);
+	memcpy(dev->dev_addr, bp->mac_addr, ETH_ALEN);
 
 	dev->hw_features = NETIF_F_IP_CSUM | NETIF_F_SG |
 		NETIF_F_TSO | NETIF_F_TSO_ECN |
diff --git a/drivers/net/ethernet/broadcom/cnic.c b/drivers/net/ethernet/broadcom/cnic.c
index 99394bd49a13..f58a8b80302d 100644
--- a/drivers/net/ethernet/broadcom/cnic.c
+++ b/drivers/net/ethernet/broadcom/cnic.c
@@ -393,7 +393,7 @@ static int cnic_iscsi_nl_msg_recv(struct cnic_dev *dev, u32 msg_type,
 
 			csk->vlan_id = path_resp->vlan_id;
 
-			memcpy(csk->ha, path_resp->mac_addr, 6);
+			memcpy(csk->ha, path_resp->mac_addr, ETH_ALEN);
 			if (test_bit(SK_F_IPV6, &csk->flags))
 				memcpy(&csk->src_ip[0], &path_resp->src.v6_addr,
 				       sizeof(struct in6_addr));
@@ -5572,7 +5572,7 @@ static struct cnic_dev *init_bnx2x_cnic(struct net_device *dev)
 	if (cdev->max_fcoe_conn > BNX2X_FCOE_NUM_CONNECTIONS)
 		cdev->max_fcoe_conn = BNX2X_FCOE_NUM_CONNECTIONS;
 
-	memcpy(cdev->mac_addr, ethdev->iscsi_mac, 6);
+	memcpy(cdev->mac_addr, ethdev->iscsi_mac, ETH_ALEN);
 
 	cp->cnic_ops = &cnic_bnx2x_ops;
 	cp->start_hw = cnic_start_bnx2x_hw;
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index a17a3c93e398..498569e99a1c 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -13214,8 +13214,8 @@ static int tg3_run_loopback(struct tg3 *tp, u32 pktsz, bool tso_loopback)
 		return -ENOMEM;
 
 	tx_data = skb_put(skb, tx_len);
-	memcpy(tx_data, tp->dev->dev_addr, 6);
-	memset(tx_data + 6, 0x0, 8);
+	memcpy(tx_data, tp->dev->dev_addr, ETH_ALEN);
+	memset(tx_data + ETH_ALEN, 0x0, 8);
 
 	tw32(MAC_RX_MTU_SIZE, tx_len + ETH_FCS_LEN);
 
@@ -16661,8 +16661,8 @@ static int tg3_get_macaddr_sparc(struct tg3 *tp)
 	int len;
 
 	addr = of_get_property(dp, "local-mac-address", &len);
-	if (addr && len == 6) {
-		memcpy(dev->dev_addr, addr, 6);
+	if (addr && len == ETH_ALEN) {
+		memcpy(dev->dev_addr, addr, ETH_ALEN);
 		return 0;
 	}
 	return -ENODEV;
@@ -16672,7 +16672,7 @@ static int tg3_get_default_macaddr_sparc(struct tg3 *tp)
 {
 	struct net_device *dev = tp->dev;
 
-	memcpy(dev->dev_addr, idprom->id_ethaddr, 6);
+	memcpy(dev->dev_addr, idprom->id_ethaddr, ETH_ALEN);
 	return 0;
 }
 #endif
diff --git a/drivers/net/ethernet/chelsio/cxgb/pm3393.c b/drivers/net/ethernet/chelsio/cxgb/pm3393.c
index 40c7b93ababc..eb33a31b08a0 100644
--- a/drivers/net/ethernet/chelsio/cxgb/pm3393.c
+++ b/drivers/net/ethernet/chelsio/cxgb/pm3393.c
@@ -499,7 +499,7 @@ static const struct cmac_statistics *pm3393_update_statistics(struct cmac *mac,
 
 static int pm3393_macaddress_get(struct cmac *cmac, u8 mac_addr[6])
 {
-	memcpy(mac_addr, cmac->instance->mac_addr, 6);
+	memcpy(mac_addr, cmac->instance->mac_addr, ETH_ALEN);
 	return 0;
 }
 
@@ -526,7 +526,7 @@ static int pm3393_macaddress_set(struct cmac *cmac, u8 ma[6])
 	 */
 
 	/* Store local copy */
-	memcpy(cmac->instance->mac_addr, ma, 6);
+	memcpy(cmac->instance->mac_addr, ma, ETH_ALEN);
 
 	lo  = ((u32) ma[1] << 8) | (u32) ma[0];
 	mid = ((u32) ma[3] << 8) | (u32) ma[2];
diff --git a/drivers/net/ethernet/davicom/dm9000.c b/drivers/net/ethernet/davicom/dm9000.c
index 5f5896e522d2..be8efeea51f2 100644
--- a/drivers/net/ethernet/davicom/dm9000.c
+++ b/drivers/net/ethernet/davicom/dm9000.c
@@ -1603,7 +1603,7 @@ dm9000_probe(struct platform_device *pdev)
 
 	if (!is_valid_ether_addr(ndev->dev_addr) && pdata != NULL) {
 		mac_src = "platform data";
-		memcpy(ndev->dev_addr, pdata->dev_addr, 6);
+		memcpy(ndev->dev_addr, pdata->dev_addr, ETH_ALEN);
 	}
 
 	if (!is_valid_ether_addr(ndev->dev_addr)) {
diff --git a/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c b/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
index 6b60582ce8cf..56f2f608a9f4 100644
--- a/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
+++ b/drivers/net/ethernet/freescale/fs_enet/fs_enet-main.c
@@ -1083,7 +1083,7 @@ static int fs_enet_probe(struct platform_device *ofdev)
 
 	mac_addr = of_get_mac_address(ofdev->dev.of_node);
 	if (mac_addr)
-		memcpy(ndev->dev_addr, mac_addr, 6);
+		memcpy(ndev->dev_addr, mac_addr, ETH_ALEN);
 
 	ret = fep->ops->allocate_bd(ndev);
 	if (ret)
diff --git a/drivers/net/ethernet/freescale/ucc_geth.c b/drivers/net/ethernet/freescale/ucc_geth.c
index 5930c39672db..d58a3dfc95c2 100644
--- a/drivers/net/ethernet/freescale/ucc_geth.c
+++ b/drivers/net/ethernet/freescale/ucc_geth.c
@@ -3899,7 +3899,7 @@ static int ucc_geth_probe(struct platform_device* ofdev)
 
 	mac_addr = of_get_mac_address(np);
 	if (mac_addr)
-		memcpy(dev->dev_addr, mac_addr, 6);
+		memcpy(dev->dev_addr, mac_addr, ETH_ALEN);
 
 	ugeth->ug_info = ug_info;
 	ugeth->dev = device;
diff --git a/drivers/net/ethernet/i825xx/82596.c b/drivers/net/ethernet/i825xx/82596.c
index e38816145395..a15877affc9b 100644
--- a/drivers/net/ethernet/i825xx/82596.c
+++ b/drivers/net/ethernet/i825xx/82596.c
@@ -711,7 +711,7 @@ static int init_i596_mem(struct net_device *dev)
 	i596_add_cmd(dev, &lp->cf_cmd.cmd);
 
 	DEB(DEB_INIT,printk(KERN_DEBUG "%s: queuing CmdSASetup\n", dev->name));
-	memcpy(lp->sa_cmd.eth_addr, dev->dev_addr, 6);
+	memcpy(lp->sa_cmd.eth_addr, dev->dev_addr, ETH_ALEN);
 	lp->sa_cmd.cmd.command = CmdSASetup;
 	i596_add_cmd(dev, &lp->sa_cmd.cmd);
 
@@ -1155,7 +1155,7 @@ struct net_device * __init i82596_probe(int unit)
 			err = -ENODEV;
 			goto out;
 		}
-		memcpy(eth_addr, (void *) 0xfffc1f2c, 6);	/* YUCK! Get addr from NOVRAM */
+		memcpy(eth_addr, (void *) 0xfffc1f2c, ETH_ALEN);	/* YUCK! Get addr from NOVRAM */
 		dev->base_addr = MVME_I596_BASE;
 		dev->irq = (unsigned) MVME16x_IRQ_I596;
 		goto found;
diff --git a/drivers/net/ethernet/i825xx/lib82596.c b/drivers/net/ethernet/i825xx/lib82596.c
index d653bac4cfc4..861fa15e1e81 100644
--- a/drivers/net/ethernet/i825xx/lib82596.c
+++ b/drivers/net/ethernet/i825xx/lib82596.c
@@ -607,7 +607,7 @@ static int init_i596_mem(struct net_device *dev)
 	i596_add_cmd(dev, &dma->cf_cmd.cmd);
 
 	DEB(DEB_INIT, printk(KERN_DEBUG "%s: queuing CmdSASetup\n", dev->name));
-	memcpy(dma->sa_cmd.eth_addr, dev->dev_addr, 6);
+	memcpy(dma->sa_cmd.eth_addr, dev->dev_addr, ETH_ALEN);
 	dma->sa_cmd.cmd.command = SWAP16(CmdSASetup);
 	DMA_WBACK(dev, &(dma->sa_cmd), sizeof(struct sa_cmd));
 	i596_add_cmd(dev, &dma->sa_cmd.cmd);
@@ -1396,13 +1396,13 @@ static void set_multicast_list(struct net_device *dev)
 		netdev_for_each_mc_addr(ha, dev) {
 			if (!cnt--)
 				break;
-			memcpy(cp, ha->addr, 6);
+			memcpy(cp, ha->addr, ETH_ALEN);
 			if (i596_debug > 1)
 				DEB(DEB_MULTI,
 				    printk(KERN_DEBUG
 					   "%s: Adding address %pM\n",
 					   dev->name, cp));
-			cp += 6;
+			cp += ETH_ALEN;
 		}
 		DMA_WBACK_INV(dev, &dma->mc_cmd, sizeof(struct mc_cmd));
 		i596_add_cmd(dev, &cmd->cmd);
diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c
index 6b5c7222342c..ef21a2e10180 100644
--- a/drivers/net/ethernet/ibm/emac/core.c
+++ b/drivers/net/ethernet/ibm/emac/core.c
@@ -2676,7 +2676,7 @@ static int emac_init_config(struct emac_instance *dev)
 		       np->full_name);
 		return -ENXIO;
 	}
-	memcpy(dev->ndev->dev_addr, p, 6);
+	memcpy(dev->ndev->dev_addr, p, ETH_ALEN);
 
 	/* IAHT and GAHT filter parameterization */
 	if (emac_has_feature(dev, EMAC_FTR_EMAC4SYNC)) {
diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c
index 5d41aee69d16..952d795230a4 100644
--- a/drivers/net/ethernet/ibm/ibmveth.c
+++ b/drivers/net/ethernet/ibm/ibmveth.c
@@ -1185,7 +1185,7 @@ static void ibmveth_set_multicast_list(struct net_device *netdev)
 		netdev_for_each_mc_addr(ha, netdev) {
 			/* add the multicast address to the filter table */
 			unsigned long mcast_addr = 0;
-			memcpy(((char *)&mcast_addr)+2, ha->addr, 6);
+			memcpy(((char *)&mcast_addr)+2, ha->addr, ETH_ALEN);
 			lpar_rc = h_multicast_ctrl(adapter->vdev->unit_address,
 						   IbmVethMcastAddFilter,
 						   mcast_addr);
@@ -1370,7 +1370,7 @@ static int ibmveth_probe(struct vio_dev *dev, const struct vio_device_id *id)
 	netif_napi_add(netdev, &adapter->napi, ibmveth_poll, 16);
 
 	adapter->mac_addr = 0;
-	memcpy(&adapter->mac_addr, mac_addr_p, 6);
+	memcpy(&adapter->mac_addr, mac_addr_p, ETH_ALEN);
 
 	netdev->irq = dev->irq;
 	netdev->netdev_ops = &ibmveth_netdev_ops;
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index a56266eacc64..a505d3bad09a 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -5708,7 +5708,7 @@ static void igb_vf_reset_msg(struct igb_adapter *adapter, u32 vf)
 
 	/* reply to reset with ack and vf mac address */
 	msgbuf[0] = E1000_VF_RESET | E1000_VT_MSGTYPE_ACK;
-	memcpy(addr, vf_mac, 6);
+	memcpy(addr, vf_mac, ETH_ALEN);
 	igb_write_mbx(hw, msgbuf, 3, vf);
 }
 
diff --git a/drivers/net/ethernet/intel/igbvf/vf.c b/drivers/net/ethernet/intel/igbvf/vf.c
index eea0e10ce12f..955ad8c2c534 100644
--- a/drivers/net/ethernet/intel/igbvf/vf.c
+++ b/drivers/net/ethernet/intel/igbvf/vf.c
@@ -154,7 +154,7 @@ static s32 e1000_reset_hw_vf(struct e1000_hw *hw)
 		ret_val = mbx->ops.read_posted(hw, msgbuf, 3);
 		if (!ret_val) {
 			if (msgbuf[0] == (E1000_VF_RESET | E1000_VT_MSGTYPE_ACK))
-				memcpy(hw->mac.perm_addr, addr, 6);
+				memcpy(hw->mac.perm_addr, addr, ETH_ALEN);
 			else
 				ret_val = -E1000_ERR_MAC_INIT;
 		}
@@ -314,7 +314,7 @@ static void e1000_rar_set_vf(struct e1000_hw *hw, u8 * addr, u32 index)
 
 	memset(msgbuf, 0, 12);
 	msgbuf[0] = E1000_VF_SET_MAC_ADDR;
-	memcpy(msg_addr, addr, 6);
+	memcpy(msg_addr, addr, ETH_ALEN);
 	ret_val = mbx->ops.write_posted(hw, msgbuf, 3);
 
 	if (!ret_val)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
index 276d7b135332..1fe7cb0142e1 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
@@ -558,7 +558,7 @@ static int ixgbe_set_vf_mac(struct ixgbe_adapter *adapter,
 	struct ixgbe_hw *hw = &adapter->hw;
 	int rar_entry = hw->mac.num_rar_entries - (vf + 1);
 
-	memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, 6);
+	memcpy(adapter->vfinfo[vf].vf_mac_addresses, mac_addr, ETH_ALEN);
 	hw->mac.ops.set_rar(hw, rar_entry, mac_addr, vf, IXGBE_RAH_AV);
 
 	return 0;
@@ -621,16 +621,13 @@ static int ixgbe_set_vf_macvlan(struct ixgbe_adapter *adapter,
 
 int ixgbe_vf_configuration(struct pci_dev *pdev, unsigned int event_mask)
 {
-	unsigned char vf_mac_addr[6];
 	struct ixgbe_adapter *adapter = pci_get_drvdata(pdev);
 	unsigned int vfn = (event_mask & 0x3f);
 
 	bool enable = ((event_mask & 0x10000000U) != 0);
 
-	if (enable) {
-		eth_zero_addr(vf_mac_addr);
-		memcpy(adapter->vfinfo[vfn].vf_mac_addresses, vf_mac_addr, 6);
-	}
+	if (enable)
+		eth_zero_addr(adapter->vfinfo[vfn].vf_mac_addresses);
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/intel/ixgbevf/vf.c b/drivers/net/ethernet/intel/ixgbevf/vf.c
index 387b52635bc0..4d44d64ae387 100644
--- a/drivers/net/ethernet/intel/ixgbevf/vf.c
+++ b/drivers/net/ethernet/intel/ixgbevf/vf.c
@@ -242,7 +242,7 @@ static s32 ixgbevf_set_uc_addr_vf(struct ixgbe_hw *hw, u32 index, u8 *addr)
 	msgbuf[0] |= index << IXGBE_VT_MSGINFO_SHIFT;
 	msgbuf[0] |= IXGBE_VF_SET_MACVLAN;
 	if (addr)
-		memcpy(msg_addr, addr, 6);
+		memcpy(msg_addr, addr, ETH_ALEN);
 	ret_val = mbx->ops.write_posted(hw, msgbuf, 3);
 
 	if (!ret_val)
@@ -275,7 +275,7 @@ static s32 ixgbevf_set_rar_vf(struct ixgbe_hw *hw, u32 index, u8 *addr,
 
 	memset(msgbuf, 0, sizeof(msgbuf));
 	msgbuf[0] = IXGBE_VF_SET_MAC_ADDR;
-	memcpy(msg_addr, addr, 6);
+	memcpy(msg_addr, addr, ETH_ALEN);
 	ret_val = mbx->ops.write_posted(hw, msgbuf, 3);
 
 	if (!ret_val)
diff --git a/drivers/net/ethernet/jme.c b/drivers/net/ethernet/jme.c
index 23de82a9da82..b56d2a29cd0e 100644
--- a/drivers/net/ethernet/jme.c
+++ b/drivers/net/ethernet/jme.c
@@ -309,7 +309,7 @@ static void
 jme_load_macaddr(struct net_device *netdev)
 {
 	struct jme_adapter *jme = netdev_priv(netdev);
-	unsigned char macaddr[6];
+	unsigned char macaddr[ETH_ALEN];
 	u32 val;
 
 	spin_lock_bh(&jme->macaddr_lock);
@@ -321,7 +321,7 @@ jme_load_macaddr(struct net_device *netdev)
 	val = jread32(jme, JME_RXUMA_HI);
 	macaddr[4] = (val >>  0) & 0xFF;
 	macaddr[5] = (val >>  8) & 0xFF;
-	memcpy(netdev->dev_addr, macaddr, 6);
+	memcpy(netdev->dev_addr, macaddr, ETH_ALEN);
 	spin_unlock_bh(&jme->macaddr_lock);
 }
 
diff --git a/drivers/net/ethernet/korina.c b/drivers/net/ethernet/korina.c
index a36fa80968eb..4a5e3b0f712e 100644
--- a/drivers/net/ethernet/korina.c
+++ b/drivers/net/ethernet/korina.c
@@ -1110,7 +1110,7 @@ static int korina_probe(struct platform_device *pdev)
 	lp = netdev_priv(dev);
 
 	bif->dev = dev;
-	memcpy(dev->dev_addr, bif->mac, 6);
+	memcpy(dev->dev_addr, bif->mac, ETH_ALEN);
 
 	lp->rx_irq = platform_get_irq_byname(pdev, "korina_rx");
 	lp->tx_irq = platform_get_irq_byname(pdev, "korina_tx");
diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index 7fb5677451f9..99f16cbf2fd8 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -2514,7 +2514,7 @@ static int mv643xx_eth_shared_of_add_port(struct platform_device *pdev,
 
 	mac_addr = of_get_mac_address(pnp);
 	if (mac_addr)
-		memcpy(ppd.mac_addr, mac_addr, 6);
+		memcpy(ppd.mac_addr, mac_addr, ETH_ALEN);
 
 	mv643xx_eth_property(pnp, "tx-queue-size", ppd.tx_queue_size);
 	mv643xx_eth_property(pnp, "tx-sram-addr", ppd.tx_sram_addr);
@@ -2696,7 +2696,7 @@ static void set_params(struct mv643xx_eth_private *mp,
 	struct net_device *dev = mp->dev;
 
 	if (is_valid_ether_addr(pd->mac_addr))
-		memcpy(dev->dev_addr, pd->mac_addr, 6);
+		memcpy(dev->dev_addr, pd->mac_addr, ETH_ALEN);
 	else
 		uc_addr_get(mp, dev->dev_addr);
 
diff --git a/drivers/net/ethernet/micrel/ks8851_mll.c b/drivers/net/ethernet/micrel/ks8851_mll.c
index 075f4e21d33d..c83d16dc7cd5 100644
--- a/drivers/net/ethernet/micrel/ks8851_mll.c
+++ b/drivers/net/ethernet/micrel/ks8851_mll.c
@@ -1248,7 +1248,7 @@ static void ks_set_mac(struct ks_net *ks, u8 *data)
 	w = ((u & 0xFF) << 8) | ((u >> 8) & 0xFF);
 	ks_wrreg16(ks, KS_MARL, w);
 
-	memcpy(ks->mac_addr, data, 6);
+	memcpy(ks->mac_addr, data, ETH_ALEN);
 
 	if (ks->enabled)
 		ks_start_rx(ks);
@@ -1651,7 +1651,7 @@ static int ks8851_probe(struct platform_device *pdev)
 	}
 	netdev_info(netdev, "Mac address is: %pM\n", ks->mac_addr);
 
-	memcpy(netdev->dev_addr, ks->mac_addr, 6);
+	memcpy(netdev->dev_addr, ks->mac_addr, ETH_ALEN);
 
 	ks_set_mac(ks, netdev->dev_addr);
 
diff --git a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
index 149355b52ad0..6ddaf7b3d92e 100644
--- a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
+++ b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
@@ -3164,7 +3164,7 @@ static void myri10ge_set_multicast_list(struct net_device *dev)
 
 	/* Walk the multicast list, and add each address */
 	netdev_for_each_mc_addr(ha, dev) {
-		memcpy(data, &ha->addr, 6);
+		memcpy(data, &ha->addr, ETH_ALEN);
 		cmd.data0 = ntohl(data[0]);
 		cmd.data1 = ntohl(data[1]);
 		err = myri10ge_send_cmd(mgp, MXGEFW_JOIN_MULTICAST_GROUP,
@@ -3207,7 +3207,7 @@ static int myri10ge_set_mac_address(struct net_device *dev, void *addr)
 	}
 
 	/* change the dev structure */
-	memcpy(dev->dev_addr, sa->sa_data, 6);
+	memcpy(dev->dev_addr, sa->sa_data, ETH_ALEN);
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c
index 8375cbde9969..67efe754367d 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_hw.c
@@ -648,7 +648,7 @@ nx_p3_sre_macaddr_change(struct netxen_adapter *adapter, u8 *addr, unsigned op)
 
 	mac_req = (nx_mac_req_t *)&req.words[0];
 	mac_req->op = op;
-	memcpy(mac_req->mac_addr, addr, 6);
+	memcpy(mac_req->mac_addr, addr, ETH_ALEN);
 
 	return netxen_send_cmd_descs(adapter, (struct cmd_desc_type0 *)&req, 1);
 }
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
index f8adc7b01f1f..73e72eb83bdf 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
@@ -445,7 +445,7 @@ int qlcnic_82xx_sre_macaddr_change(struct qlcnic_adapter *adapter, u8 *addr,
 
 	mac_req = (struct qlcnic_mac_req *)&req.words[0];
 	mac_req->op = op;
-	memcpy(mac_req->mac_addr, addr, 6);
+	memcpy(mac_req->mac_addr, addr, ETH_ALEN);
 
 	vlan_req = (struct qlcnic_vlan_req *)&req.words[1];
 	vlan_req->vlan_id = cpu_to_le16(vlan_id);
diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 5cd831ebfa83..c8df52bac162 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -868,7 +868,7 @@ static void update_mac_address(struct net_device *ndev)
 static void read_mac_address(struct net_device *ndev, unsigned char *mac)
 {
 	if (mac[0] || mac[1] || mac[2] || mac[3] || mac[4] || mac[5]) {
-		memcpy(ndev->dev_addr, mac, 6);
+		memcpy(ndev->dev_addr, mac, ETH_ALEN);
 	} else {
 		ndev->dev_addr[0] = (sh_eth_read(ndev, MAHR) >> 24);
 		ndev->dev_addr[1] = (sh_eth_read(ndev, MAHR) >> 16) & 0xFF;
diff --git a/drivers/net/ethernet/sgi/meth.c b/drivers/net/ethernet/sgi/meth.c
index 770036bc2d87..513ed8b1ba58 100644
--- a/drivers/net/ethernet/sgi/meth.c
+++ b/drivers/net/ethernet/sgi/meth.c
@@ -839,7 +839,7 @@ static int meth_probe(struct platform_device *pdev)
 	dev->watchdog_timeo	= timeout;
 	dev->irq		= MACE_ETHERNET_IRQ;
 	dev->base_addr		= (unsigned long)&mace->eth;
-	memcpy(dev->dev_addr, o2meth_eaddr, 6);
+	memcpy(dev->dev_addr, o2meth_eaddr, ETH_ALEN);
 
 	priv = netdev_priv(dev);
 	spin_lock_init(&priv->meth_lock);
diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c
index 5fdbc2686eb3..01f8459c3213 100644
--- a/drivers/net/ethernet/smsc/smsc911x.c
+++ b/drivers/net/ethernet/smsc/smsc911x.c
@@ -2502,7 +2502,7 @@ static int smsc911x_drv_probe(struct platform_device *pdev)
 		SMSC_TRACE(pdata, probe,
 			   "MAC Address is specified by configuration");
 	} else if (is_valid_ether_addr(pdata->config.mac)) {
-		memcpy(dev->dev_addr, pdata->config.mac, 6);
+		memcpy(dev->dev_addr, pdata->config.mac, ETH_ALEN);
 		SMSC_TRACE(pdata, probe,
 			   "MAC Address specified by platform data");
 	} else {
diff --git a/drivers/net/ethernet/sun/cassini.c b/drivers/net/ethernet/sun/cassini.c
index 759441b29e53..a72ecc42885d 100644
--- a/drivers/net/ethernet/sun/cassini.c
+++ b/drivers/net/ethernet/sun/cassini.c
@@ -3354,7 +3354,7 @@ use_random_mac_addr:
 #if defined(CONFIG_SPARC)
 	addr = of_get_property(cp->of_node, "local-mac-address", NULL);
 	if (addr != NULL) {
-		memcpy(dev_addr, addr, 6);
+		memcpy(dev_addr, addr, ETH_ALEN);
 		goto done;
 	}
 #endif
diff --git a/drivers/net/ethernet/sun/sungem.c b/drivers/net/ethernet/sun/sungem.c
index e62df2b81302..a235bd9fd980 100644
--- a/drivers/net/ethernet/sun/sungem.c
+++ b/drivers/net/ethernet/sun/sungem.c
@@ -2779,7 +2779,7 @@ static int gem_get_device_address(struct gem *gp)
 		return -1;
 #endif
 	}
-	memcpy(dev->dev_addr, addr, 6);
+	memcpy(dev->dev_addr, addr, ETH_ALEN);
 #else
 	get_gem_mac_nonobp(gp->pdev, gp->dev->dev_addr);
 #endif
diff --git a/drivers/net/ethernet/sun/sunhme.c b/drivers/net/ethernet/sun/sunhme.c
index e37b587b3860..99043b74bf2b 100644
--- a/drivers/net/ethernet/sun/sunhme.c
+++ b/drivers/net/ethernet/sun/sunhme.c
@@ -2675,10 +2675,10 @@ static int happy_meal_sbus_probe_one(struct platform_device *op, int is_qfe)
 
 		addr = of_get_property(dp, "local-mac-address", &len);
 
-		if (qfe_slot != -1 && addr && len == 6)
-			memcpy(dev->dev_addr, addr, 6);
+		if (qfe_slot != -1 && addr && len == ETH_ALEN)
+			memcpy(dev->dev_addr, addr, ETH_ALEN);
 		else
-			memcpy(dev->dev_addr, idprom->id_ethaddr, 6);
+			memcpy(dev->dev_addr, idprom->id_ethaddr, ETH_ALEN);
 	}
 
 	hp = netdev_priv(dev);
@@ -3024,9 +3024,9 @@ static int happy_meal_pci_probe(struct pci_dev *pdev,
 		    (addr = of_get_property(dp, "local-mac-address", &len))
 			!= NULL &&
 		    len == 6) {
-			memcpy(dev->dev_addr, addr, 6);
+			memcpy(dev->dev_addr, addr, ETH_ALEN);
 		} else {
-			memcpy(dev->dev_addr, idprom->id_ethaddr, 6);
+			memcpy(dev->dev_addr, idprom->id_ethaddr, ETH_ALEN);
 		}
 #else
 		get_hme_mac_nonsparc(pdev, &dev->dev_addr[0]);
diff --git a/drivers/net/ethernet/sun/sunqe.c b/drivers/net/ethernet/sun/sunqe.c
index b072f4dba033..5695ae2411de 100644
--- a/drivers/net/ethernet/sun/sunqe.c
+++ b/drivers/net/ethernet/sun/sunqe.c
@@ -843,7 +843,7 @@ static int qec_ether_init(struct platform_device *op)
 	if (!dev)
 		return -ENOMEM;
 
-	memcpy(dev->dev_addr, idprom->id_ethaddr, 6);
+	memcpy(dev->dev_addr, idprom->id_ethaddr, ETH_ALEN);
 
 	qe = netdev_priv(dev);
 
diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c
index 67df09ea9d04..fba1c489a911 100644
--- a/drivers/net/ethernet/ti/davinci_emac.c
+++ b/drivers/net/ethernet/ti/davinci_emac.c
@@ -1853,7 +1853,7 @@ static int davinci_emac_probe(struct platform_device *pdev)
 	}
 
 	/* MAC addr and PHY mask , RMII enable info from platform_data */
-	memcpy(priv->mac_addr, pdata->mac_addr, 6);
+	memcpy(priv->mac_addr, pdata->mac_addr, ETH_ALEN);
 	priv->phy_id = pdata->phy_id;
 	priv->rmii_en = pdata->rmii_en;
 	priv->version = pdata->version;
diff --git a/drivers/net/ethernet/tile/tilegx.c b/drivers/net/ethernet/tile/tilegx.c
index 13e6fff8ca23..628b736e5ae7 100644
--- a/drivers/net/ethernet/tile/tilegx.c
+++ b/drivers/net/ethernet/tile/tilegx.c
@@ -2230,7 +2230,7 @@ static void tile_net_dev_init(const char *name, const uint8_t *mac)
 		nz_addr |= mac[i];
 
 	if (nz_addr) {
-		memcpy(dev->dev_addr, mac, 6);
+		memcpy(dev->dev_addr, mac, ETH_ALEN);
 		dev->addr_len = 6;
 	} else {
 		eth_hw_addr_random(dev);
diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
index 80dd40417850..74234a51c851 100644
--- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c
+++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c
@@ -1172,7 +1172,7 @@ static int xemaclite_of_probe(struct platform_device *ofdev)
 
 	if (mac_address)
 		/* Set the MAC address. */
-		memcpy(ndev->dev_addr, mac_address, 6);
+		memcpy(ndev->dev_addr, mac_address, ETH_ALEN);
 	else
 		dev_warn(dev, "No MAC address found\n");
 
diff --git a/drivers/net/fddi/skfp/fplustm.c b/drivers/net/fddi/skfp/fplustm.c
index a20ed1a98099..f83993590174 100644
--- a/drivers/net/fddi/skfp/fplustm.c
+++ b/drivers/net/fddi/skfp/fplustm.c
@@ -453,7 +453,7 @@ static void directed_beacon(struct s_smc *smc)
 	 */
 	* (char *) a = (char) ((long)DBEACON_INFO<<24L) ;
 	a[1] = 0 ;
-	memcpy((char *)a+1,(char *) &smc->mib.m[MAC0].fddiMACUpstreamNbr,6) ;
+	memcpy((char *)a+1, (char *) &smc->mib.m[MAC0].fddiMACUpstreamNbr, ETH_ALEN);
 
 	CHECK_NPP() ;
 	 /* set memory address reg for writes */
diff --git a/drivers/net/fddi/skfp/skfddi.c b/drivers/net/fddi/skfp/skfddi.c
index f5d7305a5784..713d303a06a9 100644
--- a/drivers/net/fddi/skfp/skfddi.c
+++ b/drivers/net/fddi/skfp/skfddi.c
@@ -436,7 +436,7 @@ static  int skfp_driver_init(struct net_device *dev)
 	}
 	read_address(smc, NULL);
 	pr_debug("HW-Addr: %pMF\n", smc->hw.fddi_canon_addr.a);
-	memcpy(dev->dev_addr, smc->hw.fddi_canon_addr.a, 6);
+	memcpy(dev->dev_addr, smc->hw.fddi_canon_addr.a, ETH_ALEN);
 
 	smt_reset_defaults(smc, 0);
 
@@ -503,7 +503,7 @@ static int skfp_open(struct net_device *dev)
 	 *               address.
 	 */
 	read_address(smc, NULL);
-	memcpy(dev->dev_addr, smc->hw.fddi_canon_addr.a, 6);
+	memcpy(dev->dev_addr, smc->hw.fddi_canon_addr.a, ETH_ALEN);
 
 	init_smt(smc, NULL);
 	smt_online(smc, 1);
@@ -1213,7 +1213,7 @@ static void CheckSourceAddress(unsigned char *frame, unsigned char *hw_addr)
 	if ((unsigned short) frame[1 + 10] != 0)
 		return;
 	SRBit = frame[1 + 6] & 0x01;
-	memcpy(&frame[1 + 6], hw_addr, 6);
+	memcpy(&frame[1 + 6], hw_addr, ETH_ALEN);
 	frame[8] |= SRBit;
 }				// CheckSourceAddress
 
diff --git a/drivers/net/plip/plip.c b/drivers/net/plip/plip.c
index 1f7bef90b467..7b4ff35c8bf7 100644
--- a/drivers/net/plip/plip.c
+++ b/drivers/net/plip/plip.c
@@ -1002,7 +1002,7 @@ plip_rewrite_address(const struct net_device *dev, struct ethhdr *eth)
 		/* Any address will do - we take the first */
 		const struct in_ifaddr *ifa = in_dev->ifa_list;
 		if (ifa) {
-			memcpy(eth->h_source, dev->dev_addr, 6);
+			memcpy(eth->h_source, dev->dev_addr, ETH_ALEN);
 			memset(eth->h_dest, 0xfc, 2);
 			memcpy(eth->h_dest+2, &ifa->ifa_address, 4);
 		}
diff --git a/drivers/net/usb/catc.c b/drivers/net/usb/catc.c
index 8d5cac2d8e33..df507e6dbb9c 100644
--- a/drivers/net/usb/catc.c
+++ b/drivers/net/usb/catc.c
@@ -640,10 +640,10 @@ static void catc_set_multicast_list(struct net_device *netdev)
 {
 	struct catc *catc = netdev_priv(netdev);
 	struct netdev_hw_addr *ha;
-	u8 broadcast[6];
+	u8 broadcast[ETH_ALEN];
 	u8 rx = RxEnable | RxPolarity | RxMultiCast;
 
-	memset(broadcast, 0xff, 6);
+	memset(broadcast, 0xff, ETH_ALEN);
 	memset(catc->multicast, 0, 64);
 
 	catc_multicast(broadcast, catc->multicast);
@@ -778,7 +778,7 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id
 	struct usb_device *usbdev = interface_to_usbdev(intf);
 	struct net_device *netdev;
 	struct catc *catc;
-	u8 broadcast[6];
+	u8 broadcast[ETH_ALEN];
 	int i, pktsz;
 
 	if (usb_set_interface(usbdev,
@@ -882,7 +882,7 @@ static int catc_probe(struct usb_interface *intf, const struct usb_device_id *id
 		
 		dev_dbg(dev, "Filling the multicast list.\n");
 	  
-		memset(broadcast, 0xff, 6);
+		memset(broadcast, 0xff, ETH_ALEN);
 		catc_multicast(broadcast, catc->multicast);
 		catc_multicast(netdev->dev_addr, catc->multicast);
 		catc_write_mem(catc, 0xfa80, catc->multicast, 64);
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 55f90c761868..bee88e841a7f 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -1918,7 +1918,7 @@ int ath10k_wmi_peer_set_param(struct ath10k *ar, u32 vdev_id,
 	cmd->vdev_id     = __cpu_to_le32(vdev_id);
 	cmd->param_id    = __cpu_to_le32(param_id);
 	cmd->param_value = __cpu_to_le32(param_value);
-	memcpy(&cmd->peer_macaddr.addr, peer_addr, 6);
+	memcpy(&cmd->peer_macaddr.addr, peer_addr, ETH_ALEN);
 
 	ath10k_dbg(ATH10K_DBG_WMI,
 		   "wmi vdev %d peer 0x%pM set param %d value %d\n",
diff --git a/drivers/net/wireless/ath/wil6210/cfg80211.c b/drivers/net/wireless/ath/wil6210/cfg80211.c
index 61c302a6bdea..5b340769d5bb 100644
--- a/drivers/net/wireless/ath/wil6210/cfg80211.c
+++ b/drivers/net/wireless/ath/wil6210/cfg80211.c
@@ -316,8 +316,8 @@ static int wil_cfg80211_connect(struct wiphy *wiphy,
 	}
 	conn.channel = ch - 1;
 
-	memcpy(conn.bssid, bss->bssid, 6);
-	memcpy(conn.dst_mac, bss->bssid, 6);
+	memcpy(conn.bssid, bss->bssid, ETH_ALEN);
+	memcpy(conn.dst_mac, bss->bssid, ETH_ALEN);
 	/*
 	 * FW don't support scan after connection attempt
 	 */
diff --git a/drivers/net/wireless/atmel.c b/drivers/net/wireless/atmel.c
index b827d51c30a3..a55ae6494c3b 100644
--- a/drivers/net/wireless/atmel.c
+++ b/drivers/net/wireless/atmel.c
@@ -844,18 +844,18 @@ static netdev_tx_t start_tx(struct sk_buff *skb, struct net_device *dev)
 	if (priv->wep_is_on)
 		frame_ctl |= IEEE80211_FCTL_PROTECTED;
 	if (priv->operating_mode == IW_MODE_ADHOC) {
-		skb_copy_from_linear_data(skb, &header.addr1, 6);
-		memcpy(&header.addr2, dev->dev_addr, 6);
-		memcpy(&header.addr3, priv->BSSID, 6);
+		skb_copy_from_linear_data(skb, &header.addr1, ETH_ALEN);
+		memcpy(&header.addr2, dev->dev_addr, ETH_ALEN);
+		memcpy(&header.addr3, priv->BSSID, ETH_ALEN);
 	} else {
 		frame_ctl |= IEEE80211_FCTL_TODS;
-		memcpy(&header.addr1, priv->CurrentBSSID, 6);
-		memcpy(&header.addr2, dev->dev_addr, 6);
-		skb_copy_from_linear_data(skb, &header.addr3, 6);
+		memcpy(&header.addr1, priv->CurrentBSSID, ETH_ALEN);
+		memcpy(&header.addr2, dev->dev_addr, ETH_ALEN);
+		skb_copy_from_linear_data(skb, &header.addr3, ETH_ALEN);
 	}
 
 	if (priv->use_wpa)
-		memcpy(&header.addr4, SNAP_RFC1024, 6);
+		memcpy(&header.addr4, SNAP_RFC1024, ETH_ALEN);
 
 	header.frame_control = cpu_to_le16(frame_ctl);
 	/* Copy the wireless header into the card */
@@ -929,11 +929,11 @@ static void fast_rx_path(struct atmel_private *priv,
 		}
 	}
 
-	memcpy(skbp, header->addr1, 6); /* destination address */
+	memcpy(skbp, header->addr1, ETH_ALEN); /* destination address */
 	if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS)
-		memcpy(&skbp[6], header->addr3, 6);
+		memcpy(&skbp[ETH_ALEN], header->addr3, ETH_ALEN);
 	else
-		memcpy(&skbp[6], header->addr2, 6); /* source address */
+		memcpy(&skbp[ETH_ALEN], header->addr2, ETH_ALEN); /* source address */
 
 	skb->protocol = eth_type_trans(skb, priv->dev);
 	skb->ip_summed = CHECKSUM_NONE;
@@ -969,14 +969,14 @@ static void frag_rx_path(struct atmel_private *priv,
 			 u16 msdu_size, u16 rx_packet_loc, u32 crc, u16 seq_no,
 			 u8 frag_no, int more_frags)
 {
-	u8 mac4[6];
-	u8 source[6];
+	u8 mac4[ETH_ALEN];
+	u8 source[ETH_ALEN];
 	struct sk_buff *skb;
 
 	if (le16_to_cpu(header->frame_control) & IEEE80211_FCTL_FROMDS)
-		memcpy(source, header->addr3, 6);
+		memcpy(source, header->addr3, ETH_ALEN);
 	else
-		memcpy(source, header->addr2, 6);
+		memcpy(source, header->addr2, ETH_ALEN);
 
 	rx_packet_loc += 24; /* skip header */
 
@@ -984,9 +984,9 @@ static void frag_rx_path(struct atmel_private *priv,
 		msdu_size -= 4;
 
 	if (frag_no == 0) { /* first fragment */
-		atmel_copy_to_host(priv->dev, mac4, rx_packet_loc, 6);
-		msdu_size -= 6;
-		rx_packet_loc += 6;
+		atmel_copy_to_host(priv->dev, mac4, rx_packet_loc, ETH_ALEN);
+		msdu_size -= ETH_ALEN;
+		rx_packet_loc += ETH_ALEN;
 
 		if (priv->do_rx_crc)
 			crc = crc32_le(crc, mac4, 6);
@@ -994,9 +994,9 @@ static void frag_rx_path(struct atmel_private *priv,
 		priv->frag_seq = seq_no;
 		priv->frag_no = 1;
 		priv->frag_len = msdu_size;
-		memcpy(priv->frag_source, source, 6);
-		memcpy(&priv->rx_buf[6], source, 6);
-		memcpy(priv->rx_buf, header->addr1, 6);
+		memcpy(priv->frag_source, source, ETH_ALEN);
+		memcpy(&priv->rx_buf[ETH_ALEN], source, ETH_ALEN);
+		memcpy(priv->rx_buf, header->addr1, ETH_ALEN);
 
 		atmel_copy_to_host(priv->dev, &priv->rx_buf[12], rx_packet_loc, msdu_size);
 
@@ -1006,13 +1006,13 @@ static void frag_rx_path(struct atmel_private *priv,
 			atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4);
 			if ((crc ^ 0xffffffff) != netcrc) {
 				priv->dev->stats.rx_crc_errors++;
-				memset(priv->frag_source, 0xff, 6);
+				memset(priv->frag_source, 0xff, ETH_ALEN);
 			}
 		}
 
 	} else if (priv->frag_no == frag_no &&
 		   priv->frag_seq == seq_no &&
-		   memcmp(priv->frag_source, source, 6) == 0) {
+		   memcmp(priv->frag_source, source, ETH_ALEN) == 0) {
 
 		atmel_copy_to_host(priv->dev, &priv->rx_buf[12 + priv->frag_len],
 				   rx_packet_loc, msdu_size);
@@ -1024,7 +1024,7 @@ static void frag_rx_path(struct atmel_private *priv,
 			atmel_copy_to_host(priv->dev, (void *)&netcrc, rx_packet_loc + msdu_size, 4);
 			if ((crc ^ 0xffffffff) != netcrc) {
 				priv->dev->stats.rx_crc_errors++;
-				memset(priv->frag_source, 0xff, 6);
+				memset(priv->frag_source, 0xff, ETH_ALEN);
 				more_frags = 1; /* don't send broken assembly */
 			}
 		}
@@ -1033,7 +1033,7 @@ static void frag_rx_path(struct atmel_private *priv,
 		priv->frag_no++;
 
 		if (!more_frags) { /* last one */
-			memset(priv->frag_source, 0xff, 6);
+			memset(priv->frag_source, 0xff, ETH_ALEN);
 			if (!(skb = dev_alloc_skb(priv->frag_len + 14))) {
 				priv->dev->stats.rx_dropped++;
 			} else {
@@ -1129,7 +1129,7 @@ static void rx_done_irq(struct atmel_private *priv)
 			atmel_copy_to_host(priv->dev, (unsigned char *)&priv->rx_buf, rx_packet_loc + 24, msdu_size);
 
 			/* we use the same buffer for frag reassembly and control packets */
-			memset(priv->frag_source, 0xff, 6);
+			memset(priv->frag_source, 0xff, ETH_ALEN);
 
 			if (priv->do_rx_crc) {
 				/* last 4 octets is crc */
@@ -1557,7 +1557,7 @@ struct net_device *init_atmel_card(unsigned short irq, unsigned long port,
 	priv->last_qual = jiffies;
 	priv->last_beacon_timestamp = 0;
 	memset(priv->frag_source, 0xff, sizeof(priv->frag_source));
-	memset(priv->BSSID, 0, 6);
+	memset(priv->BSSID, 0, ETH_ALEN);
 	priv->CurrentBSSID[0] = 0xFF; /* Initialize to something invalid.... */
 	priv->station_was_associated = 0;
 
@@ -1718,7 +1718,7 @@ static int atmel_get_wap(struct net_device *dev,
 			 char *extra)
 {
 	struct atmel_private *priv = netdev_priv(dev);
-	memcpy(awrq->sa_data, priv->CurrentBSSID, 6);
+	memcpy(awrq->sa_data, priv->CurrentBSSID, ETH_ALEN);
 	awrq->sa_family = ARPHRD_ETHER;
 
 	return 0;
@@ -2356,7 +2356,7 @@ static int atmel_get_scan(struct net_device *dev,
 	for (i = 0; i < priv->BSS_list_entries; i++) {
 		iwe.cmd = SIOCGIWAP;
 		iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
-		memcpy(iwe.u.ap_addr.sa_data, priv->BSSinfo[i].BSSID, 6);
+		memcpy(iwe.u.ap_addr.sa_data, priv->BSSinfo[i].BSSID, ETH_ALEN);
 		current_ev = iwe_stream_add_event(info, current_ev,
 						  extra + IW_SCAN_MAX_DATA,
 						  &iwe, IW_EV_ADDR_LEN);
@@ -2760,7 +2760,7 @@ static void atmel_enter_state(struct atmel_private *priv, int new_state)
 static void atmel_scan(struct atmel_private *priv, int specific_ssid)
 {
 	struct {
-		u8 BSSID[6];
+		u8 BSSID[ETH_ALEN];
 		u8 SSID[MAX_SSID_LENGTH];
 		u8 scan_type;
 		u8 channel;
@@ -2771,7 +2771,7 @@ static void atmel_scan(struct atmel_private *priv, int specific_ssid)
 		u8 SSID_size;
 	} cmd;
 
-	memset(cmd.BSSID, 0xff, 6);
+	memset(cmd.BSSID, 0xff, ETH_ALEN);
 
 	if (priv->fast_scan) {
 		cmd.SSID_size = priv->SSID_size;
@@ -2816,7 +2816,7 @@ static void join(struct atmel_private *priv, int type)
 
 	cmd.SSID_size = priv->SSID_size;
 	memcpy(cmd.SSID, priv->SSID, priv->SSID_size);
-	memcpy(cmd.BSSID, priv->CurrentBSSID, 6);
+	memcpy(cmd.BSSID, priv->CurrentBSSID, ETH_ALEN);
 	cmd.channel = (priv->channel & 0x7f);
 	cmd.BSS_type = type;
 	cmd.timeout = cpu_to_le16(2000);
@@ -2837,7 +2837,7 @@ static void start(struct atmel_private *priv, int type)
 
 	cmd.SSID_size = priv->SSID_size;
 	memcpy(cmd.SSID, priv->SSID, priv->SSID_size);
-	memcpy(cmd.BSSID, priv->BSSID, 6);
+	memcpy(cmd.BSSID, priv->BSSID, ETH_ALEN);
 	cmd.BSS_type = type;
 	cmd.channel = (priv->channel & 0x7f);
 
@@ -2883,9 +2883,9 @@ static void send_authentication_request(struct atmel_private *priv, u16 system,
 	header.frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH);
 	header.duration_id = cpu_to_le16(0x8000);
 	header.seq_ctrl = 0;
-	memcpy(header.addr1, priv->CurrentBSSID, 6);
-	memcpy(header.addr2, priv->dev->dev_addr, 6);
-	memcpy(header.addr3, priv->CurrentBSSID, 6);
+	memcpy(header.addr1, priv->CurrentBSSID, ETH_ALEN);
+	memcpy(header.addr2, priv->dev->dev_addr, ETH_ALEN);
+	memcpy(header.addr3, priv->CurrentBSSID, ETH_ALEN);
 
 	if (priv->wep_is_on && priv->CurrentAuthentTransactionSeqNum != 1)
 		/* no WEP for authentication frames with TrSeqNo 1 */
@@ -2916,7 +2916,7 @@ static void send_association_request(struct atmel_private *priv, int is_reassoc)
 	struct ass_req_format {
 		__le16 capability;
 		__le16 listen_interval;
-		u8 ap[6]; /* nothing after here directly accessible */
+		u8 ap[ETH_ALEN]; /* nothing after here directly accessible */
 		u8 ssid_el_id;
 		u8 ssid_len;
 		u8 ssid[MAX_SSID_LENGTH];
@@ -2930,9 +2930,9 @@ static void send_association_request(struct atmel_private *priv, int is_reassoc)
 	header.duration_id = cpu_to_le16(0x8000);
 	header.seq_ctrl = 0;
 
-	memcpy(header.addr1, priv->CurrentBSSID, 6);
-	memcpy(header.addr2, priv->dev->dev_addr, 6);
-	memcpy(header.addr3, priv->CurrentBSSID, 6);
+	memcpy(header.addr1, priv->CurrentBSSID, ETH_ALEN);
+	memcpy(header.addr2, priv->dev->dev_addr, ETH_ALEN);
+	memcpy(header.addr3, priv->CurrentBSSID, ETH_ALEN);
 
 	body.capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
 	if (priv->wep_is_on)
@@ -2944,7 +2944,7 @@ static void send_association_request(struct atmel_private *priv, int is_reassoc)
 
 	/* current AP address - only in reassoc frame */
 	if (is_reassoc) {
-		memcpy(body.ap, priv->CurrentBSSID, 6);
+		memcpy(body.ap, priv->CurrentBSSID, ETH_ALEN);
 		ssid_el_p = &body.ssid_el_id;
 		bodysize = 18 + priv->SSID_size;
 	} else {
@@ -3021,7 +3021,7 @@ static void store_bss_info(struct atmel_private *priv,
 	int i, index;
 
 	for (index = -1, i = 0; i < priv->BSS_list_entries; i++)
-		if (memcmp(bss, priv->BSSinfo[i].BSSID, 6) == 0)
+		if (memcmp(bss, priv->BSSinfo[i].BSSID, ETH_ALEN) == 0)
 			index = i;
 
 	/* If we process a probe and an entry from this BSS exists
@@ -3032,7 +3032,7 @@ static void store_bss_info(struct atmel_private *priv,
 		if (priv->BSS_list_entries == MAX_BSS_ENTRIES)
 			return;
 		index = priv->BSS_list_entries++;
-		memcpy(priv->BSSinfo[index].BSSID, bss, 6);
+		memcpy(priv->BSSinfo[index].BSSID, bss, ETH_ALEN);
 		priv->BSSinfo[index].RSSI = rssi;
 	} else {
 		if (rssi > priv->BSSinfo[index].RSSI)
@@ -3235,7 +3235,7 @@ static void atmel_join_bss(struct atmel_private *priv, int bss_index)
 {
 	struct bss_info *bss =  &priv->BSSinfo[bss_index];
 
-	memcpy(priv->CurrentBSSID, bss->BSSID, 6);
+	memcpy(priv->CurrentBSSID, bss->BSSID, ETH_ALEN);
 	memcpy(priv->SSID, bss->SSID, priv->SSID_size = bss->SSIDsize);
 
 	/* The WPA stuff cares about the current AP address */
@@ -3767,7 +3767,7 @@ static int probe_atmel_card(struct net_device *dev)
 				0x00, 0x04, 0x25, 0x00, 0x00, 0x00
 			};
 			printk(KERN_ALERT "%s: *** Invalid MAC address. UPGRADE Firmware ****\n", dev->name);
-			memcpy(dev->dev_addr, default_mac, 6);
+			memcpy(dev->dev_addr, default_mac, ETH_ALEN);
 		}
 	}
 
@@ -3819,7 +3819,7 @@ static void build_wpa_mib(struct atmel_private *priv)
 
 	struct { /* NB this is matched to the hardware, don't change. */
 		u8 cipher_default_key_value[MAX_ENCRYPTION_KEYS][MAX_ENCRYPTION_KEY_SIZE];
-		u8 receiver_address[6];
+		u8 receiver_address[ETH_ALEN];
 		u8 wep_is_on;
 		u8 default_key; /* 0..3 */
 		u8 group_key;
@@ -3837,7 +3837,7 @@ static void build_wpa_mib(struct atmel_private *priv)
 
 	mib.wep_is_on = priv->wep_is_on;
 	mib.exclude_unencrypted = priv->exclude_unencrypted;
-	memcpy(mib.receiver_address, priv->CurrentBSSID, 6);
+	memcpy(mib.receiver_address, priv->CurrentBSSID, ETH_ALEN);
 
 	/* zero all the keys before adding in valid ones. */
 	memset(mib.cipher_default_key_value, 0, sizeof(mib.cipher_default_key_value));
diff --git a/drivers/net/wireless/b43/xmit.c b/drivers/net/wireless/b43/xmit.c
index 8cb206a89083..4ae63f4ddfb2 100644
--- a/drivers/net/wireless/b43/xmit.c
+++ b/drivers/net/wireless/b43/xmit.c
@@ -278,7 +278,7 @@ int b43_generate_txhdr(struct b43_wldev *dev,
 	else
 		txhdr->phy_rate = b43_plcp_get_ratecode_cck(rate);
 	txhdr->mac_frame_ctl = wlhdr->frame_control;
-	memcpy(txhdr->tx_receiver, wlhdr->addr1, 6);
+	memcpy(txhdr->tx_receiver, wlhdr->addr1, ETH_ALEN);
 
 	/* Calculate duration for fallback rate */
 	if ((rate_fb == rate) ||
diff --git a/drivers/net/wireless/b43legacy/xmit.c b/drivers/net/wireless/b43legacy/xmit.c
index 849a28c80302..86588c9ff0f2 100644
--- a/drivers/net/wireless/b43legacy/xmit.c
+++ b/drivers/net/wireless/b43legacy/xmit.c
@@ -215,7 +215,7 @@ static int generate_txhdr_fw3(struct b43legacy_wldev *dev,
 	rate_fb_ofdm = b43legacy_is_ofdm_rate(rate_fb->hw_value);
 
 	txhdr->mac_frame_ctl = wlhdr->frame_control;
-	memcpy(txhdr->tx_receiver, wlhdr->addr1, 6);
+	memcpy(txhdr->tx_receiver, wlhdr->addr1, ETH_ALEN);
 
 	/* Calculate duration for fallback rate */
 	if ((rate_fb->hw_value == rate) ||
diff --git a/drivers/net/wireless/brcm80211/brcmsmac/main.c b/drivers/net/wireless/brcm80211/brcmsmac/main.c
index 4608e0eb1493..69b14dc4dd55 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/main.c
+++ b/drivers/net/wireless/brcm80211/brcmsmac/main.c
@@ -1906,14 +1906,14 @@ static void brcms_c_get_macaddr(struct brcms_hardware *wlc_hw, u8 etheraddr[ETH_
 
 	/* If macaddr exists, use it (Sromrev4, CIS, ...). */
 	if (!is_zero_ether_addr(sprom->il0mac)) {
-		memcpy(etheraddr, sprom->il0mac, 6);
+		memcpy(etheraddr, sprom->il0mac, ETH_ALEN);
 		return;
 	}
 
 	if (wlc_hw->_nbands > 1)
-		memcpy(etheraddr, sprom->et1mac, 6);
+		memcpy(etheraddr, sprom->et1mac, ETH_ALEN);
 	else
-		memcpy(etheraddr, sprom->il0mac, 6);
+		memcpy(etheraddr, sprom->il0mac, ETH_ALEN);
 }
 
 /* power both the pll and external oscillator on/off */
diff --git a/drivers/net/wireless/hostap/hostap_info.c b/drivers/net/wireless/hostap/hostap_info.c
index 970a48baaf80..de7c4ffec309 100644
--- a/drivers/net/wireless/hostap/hostap_info.c
+++ b/drivers/net/wireless/hostap/hostap_info.c
@@ -217,7 +217,7 @@ static void prism2_host_roaming(local_info_t *local)
 		}
 	}
 
-	memcpy(req.bssid, selected->bssid, 6);
+	memcpy(req.bssid, selected->bssid, ETH_ALEN);
 	req.channel = selected->chid;
 	spin_unlock_irqrestore(&local->lock, flags);
 
diff --git a/drivers/net/wireless/ipw2x00/ipw2200.c b/drivers/net/wireless/ipw2x00/ipw2200.c
index 6b823a1ab789..8711a511fd52 100644
--- a/drivers/net/wireless/ipw2x00/ipw2200.c
+++ b/drivers/net/wireless/ipw2x00/ipw2200.c
@@ -2698,7 +2698,7 @@ static u16 eeprom_read_u16(struct ipw_priv *priv, u8 addr)
 /* data's copy of the eeprom data                                 */
 static void eeprom_parse_mac(struct ipw_priv *priv, u8 * mac)
 {
-	memcpy(mac, &priv->eeprom[EEPROM_MAC_ADDRESS], 6);
+	memcpy(mac, &priv->eeprom[EEPROM_MAC_ADDRESS], ETH_ALEN);
 }
 
 static void ipw_read_eeprom(struct ipw_priv *priv)
diff --git a/drivers/net/wireless/prism54/isl_ioctl.c b/drivers/net/wireless/prism54/isl_ioctl.c
index 1c22b81e6ef3..8863a6cb2388 100644
--- a/drivers/net/wireless/prism54/isl_ioctl.c
+++ b/drivers/net/wireless/prism54/isl_ioctl.c
@@ -183,7 +183,7 @@ prism54_update_stats(struct work_struct *work)
 	data = r.ptr;
 
 	/* copy this MAC to the bss */
-	memcpy(bss.address, data, 6);
+	memcpy(bss.address, data, ETH_ALEN);
 	kfree(data);
 
 	/* now ask for the corresponding bss */
@@ -531,7 +531,7 @@ prism54_set_wap(struct net_device *ndev, struct iw_request_info *info,
 		return -EINVAL;
 
 	/* prepare the structure for the set object */
-	memcpy(&bssid[0], awrq->sa_data, 6);
+	memcpy(&bssid[0], awrq->sa_data, ETH_ALEN);
 
 	/* set the bssid -- does this make sense when in AP mode? */
 	rvalue = mgt_set_request(priv, DOT11_OID_BSSID, 0, &bssid);
@@ -550,7 +550,7 @@ prism54_get_wap(struct net_device *ndev, struct iw_request_info *info,
 	int rvalue;
 
 	rvalue = mgt_get_request(priv, DOT11_OID_BSSID, 0, NULL, &r);
-	memcpy(awrq->sa_data, r.ptr, 6);
+	memcpy(awrq->sa_data, r.ptr, ETH_ALEN);
 	awrq->sa_family = ARPHRD_ETHER;
 	kfree(r.ptr);
 
@@ -582,7 +582,7 @@ prism54_translate_bss(struct net_device *ndev, struct iw_request_info *info,
 	size_t wpa_ie_len;
 
 	/* The first entry must be the MAC address */
-	memcpy(iwe.u.ap_addr.sa_data, bss->address, 6);
+	memcpy(iwe.u.ap_addr.sa_data, bss->address, ETH_ALEN);
 	iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
 	iwe.cmd = SIOCGIWAP;
 	current_ev = iwe_stream_add_event(info, current_ev, end_buf,
@@ -2489,7 +2489,7 @@ prism54_set_mac_address(struct net_device *ndev, void *addr)
 			      &((struct sockaddr *) addr)->sa_data);
 	if (!ret)
 		memcpy(priv->ndev->dev_addr,
-		       &((struct sockaddr *) addr)->sa_data, 6);
+		       &((struct sockaddr *) addr)->sa_data, ETH_ALEN);
 
 	return ret;
 }
diff --git a/drivers/net/wireless/prism54/islpci_dev.c b/drivers/net/wireless/prism54/islpci_dev.c
index 5970ff6f40cc..41a16d30c79c 100644
--- a/drivers/net/wireless/prism54/islpci_dev.c
+++ b/drivers/net/wireless/prism54/islpci_dev.c
@@ -837,7 +837,7 @@ islpci_setup(struct pci_dev *pdev)
 	/* ndev->set_multicast_list = &islpci_set_multicast_list; */
 	ndev->addr_len = ETH_ALEN;
 	/* Get a non-zero dummy MAC address for nameif. Jean II */
-	memcpy(ndev->dev_addr, dummy_mac, 6);
+	memcpy(ndev->dev_addr, dummy_mac, ETH_ALEN);
 
 	ndev->watchdog_timeo = ISLPCI_TX_TIMEOUT;
 
diff --git a/drivers/net/wireless/prism54/oid_mgt.c b/drivers/net/wireless/prism54/oid_mgt.c
index a01606b36e03..056af38e72e3 100644
--- a/drivers/net/wireless/prism54/oid_mgt.c
+++ b/drivers/net/wireless/prism54/oid_mgt.c
@@ -682,7 +682,7 @@ mgt_update_addr(islpci_private *priv)
 				     isl_oid[GEN_OID_MACADDRESS].size, &res);
 
 	if ((ret == 0) && res && (res->header->operation != PIMFOR_OP_ERROR))
-		memcpy(priv->ndev->dev_addr, res->data, 6);
+		memcpy(priv->ndev->dev_addr, res->data, ETH_ALEN);
 	else
 		ret = -EIO;
 	if (res)
diff --git a/drivers/net/wireless/rtlwifi/core.c b/drivers/net/wireless/rtlwifi/core.c
index 733b7ce7f0e2..210ce7cd94d8 100644
--- a/drivers/net/wireless/rtlwifi/core.c
+++ b/drivers/net/wireless/rtlwifi/core.c
@@ -115,7 +115,7 @@ static void rtl_op_stop(struct ieee80211_hw *hw)
 	mutex_lock(&rtlpriv->locks.conf_mutex);
 
 	mac->link_state = MAC80211_NOLINK;
-	memset(mac->bssid, 0, 6);
+	memset(mac->bssid, 0, ETH_ALEN);
 	mac->vendor = PEER_UNKNOWN;
 
 	/*reset sec info */
@@ -280,7 +280,7 @@ static void rtl_op_remove_interface(struct ieee80211_hw *hw,
 	mac->p2p = 0;
 	mac->vif = NULL;
 	mac->link_state = MAC80211_NOLINK;
-	memset(mac->bssid, 0, 6);
+	memset(mac->bssid, 0, ETH_ALEN);
 	mac->vendor = PEER_UNKNOWN;
 	mac->opmode = NL80211_IFTYPE_UNSPECIFIED;
 	rtlpriv->cfg->ops->set_network_type(hw, mac->opmode);
@@ -721,7 +721,7 @@ static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
 			mac->link_state = MAC80211_LINKED;
 			mac->cnt_after_linked = 0;
 			mac->assoc_id = bss_conf->aid;
-			memcpy(mac->bssid, bss_conf->bssid, 6);
+			memcpy(mac->bssid, bss_conf->bssid, ETH_ALEN);
 
 			if (rtlpriv->cfg->ops->linked_set_reg)
 				rtlpriv->cfg->ops->linked_set_reg(hw);
@@ -750,7 +750,7 @@ static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
 			if (ppsc->p2p_ps_info.p2p_ps_mode > P2P_PS_NONE)
 				rtl_p2p_ps_cmd(hw, P2P_PS_DISABLE);
 			mac->link_state = MAC80211_NOLINK;
-			memset(mac->bssid, 0, 6);
+			memset(mac->bssid, 0, ETH_ALEN);
 			mac->vendor = PEER_UNKNOWN;
 
 			if (rtlpriv->dm.supp_phymode_switch) {
@@ -826,7 +826,7 @@ static void rtl_op_bss_info_changed(struct ieee80211_hw *hw,
 			 bss_conf->bssid);
 
 		mac->vendor = PEER_UNKNOWN;
-		memcpy(mac->bssid, bss_conf->bssid, 6);
+		memcpy(mac->bssid, bss_conf->bssid, ETH_ALEN);
 		rtlpriv->cfg->ops->set_network_type(hw, vif->type);
 
 		rcu_read_lock();
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index d1c578630678..005d876dd86c 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -363,7 +363,7 @@ static struct sk_buff *br_ip4_multicast_alloc_query(struct net_bridge *br,
 	skb_reset_mac_header(skb);
 	eth = eth_hdr(skb);
 
-	memcpy(eth->h_source, br->dev->dev_addr, 6);
+	memcpy(eth->h_source, br->dev->dev_addr, ETH_ALEN);
 	eth->h_dest[0] = 1;
 	eth->h_dest[1] = 0;
 	eth->h_dest[2] = 0x5e;
@@ -433,7 +433,7 @@ static struct sk_buff *br_ip6_multicast_alloc_query(struct net_bridge *br,
 	skb_reset_mac_header(skb);
 	eth = eth_hdr(skb);
 
-	memcpy(eth->h_source, br->dev->dev_addr, 6);
+	memcpy(eth->h_source, br->dev->dev_addr, ETH_ALEN);
 	eth->h_proto = htons(ETH_P_IPV6);
 	skb_put(skb, sizeof(*eth));
 
diff --git a/net/bridge/netfilter/ebt_among.c b/net/bridge/netfilter/ebt_among.c
index 8b84c581be30..3fb3c848affe 100644
--- a/net/bridge/netfilter/ebt_among.c
+++ b/net/bridge/netfilter/ebt_among.c
@@ -28,7 +28,7 @@ static bool ebt_mac_wormhash_contains(const struct ebt_mac_wormhash *wh,
 	uint32_t cmp[2] = { 0, 0 };
 	int key = ((const unsigned char *)mac)[5];
 
-	memcpy(((char *) cmp) + 2, mac, 6);
+	memcpy(((char *) cmp) + 2, mac, ETH_ALEN);
 	start = wh->table[key];
 	limit = wh->table[key + 1];
 	if (ip) {
diff --git a/net/mac80211/trace.h b/net/mac80211/trace.h
index 1aba645882bd..3fb9dd6d02fc 100644
--- a/net/mac80211/trace.h
+++ b/net/mac80211/trace.h
@@ -77,13 +77,13 @@ DECLARE_EVENT_CLASS(local_sdata_addr_evt,
 	TP_STRUCT__entry(
 		LOCAL_ENTRY
 		VIF_ENTRY
-		__array(char, addr, 6)
+		__array(char, addr, ETH_ALEN)
 	),
 
 	TP_fast_assign(
 		LOCAL_ASSIGN;
 		VIF_ASSIGN;
-		memcpy(__entry->addr, sdata->vif.addr, 6);
+		memcpy(__entry->addr, sdata->vif.addr, ETH_ALEN);
 	),
 
 	TP_printk(
-- 
cgit 


From b8b04eef302941e53c8d508d6503e8bf1375f67a Mon Sep 17 00:00:00 2001
From: Tugce Sirin <ztugcesirin@gmail.com>
Date: Thu, 3 Oct 2013 01:39:57 +0300
Subject: staging: silicom: fix space prohibited before semicolon

Signed-off-by: Tugce Sirin <ztugcesirin@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/silicom/bp_mod.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/silicom/bp_mod.h b/drivers/staging/silicom/bp_mod.h
index cfa1f43fa4af..8154a7bf050f 100644
--- a/drivers/staging/silicom/bp_mod.h
+++ b/drivers/staging/silicom/bp_mod.h
@@ -22,7 +22,7 @@ do {						\
 	int  i;					\
 	if (1) {				\
 		for (i = 0; i < 1000; i++) {	\
-			udelay(x) ;		\
+			udelay(x);		\
 		}				\
 	} else {				\
 		msleep(x);			\
-- 
cgit 


From 7b4371ea48f03d3ac56df44f573e314f5b06939e Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Wed, 2 Oct 2013 20:39:11 -0700
Subject: ath10k: wmi: Convert use of 6 to ETH_ALEN

Use the appropriate define instead of 6.

Signed-off-by: Joe Perches <joe@perches.com>
Noticed-by: Julia Lawall <julia.lawall@lip6.fr> via spatch script
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/wireless/ath/ath10k/wmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index bee88e841a7f..48d44e7f386c 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -1758,7 +1758,7 @@ int ath10k_wmi_vdev_up(struct ath10k *ar, u32 vdev_id, u32 aid, const u8 *bssid)
 	cmd = (struct wmi_vdev_up_cmd *)skb->data;
 	cmd->vdev_id       = __cpu_to_le32(vdev_id);
 	cmd->vdev_assoc_id = __cpu_to_le32(aid);
-	memcpy(&cmd->vdev_bssid.addr, bssid, 6);
+	memcpy(&cmd->vdev_bssid.addr, bssid, ETH_ALEN);
 
 	ath10k_dbg(ATH10K_DBG_WMI,
 		   "wmi mgmt vdev up id 0x%x assoc id %d bssid %pM\n",
-- 
cgit 


From cdba5281b2496ffbca332e006f258951233bf53d Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 2 Oct 2013 21:31:52 -0700
Subject: Bluetooth: Restrict SSP setting changes to BR/EDR enabled controllers

Only when BR/EDR is supported and enabled, allow changing of the SSP
setting. Just checking if the hardware supports SSP is not enough
since it might be the case that BR/EDR is disabled.

In the case that BR/EDR is disabled, but SSP supported by the
controller the not supported error message is now returned.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 3b3ed0522fcf..b09c86b6996a 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1296,11 +1296,15 @@ static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 {
 	struct mgmt_mode *cp = data;
 	struct pending_cmd *cmd;
-	u8 val;
+	u8 val, status;
 	int err;
 
 	BT_DBG("request for %s", hdev->name);
 
+	status = mgmt_bredr_support(hdev);
+	if (status)
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_SSP, status);
+
 	if (!lmp_ssp_capable(hdev))
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
 				  MGMT_STATUS_NOT_SUPPORTED);
-- 
cgit 


From 62af444319120347371ae24043da28db75b729db Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 2 Oct 2013 22:10:32 -0700
Subject: Bluetooth: Allow setting static address even if LE is disabled

Setting the static address does not depend on LE beeing enabled. It
only depends on a controller with LE support.

When depending on LE enabled this command becomes really complicated
since in case LE gets disabled, it would be required to clear the
static address and also its random address representation inside
the controller. With future support for private addresses such
complex setup should be avoided.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index b09c86b6996a..bbe012e93b70 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3280,15 +3280,13 @@ static int set_static_address(struct sock *sk, struct hci_dev *hdev,
 			      void *data, u16 len)
 {
 	struct mgmt_cp_set_static_address *cp = data;
-	u8 status;
 	int err;
 
 	BT_DBG("%s", hdev->name);
 
-	status = mgmt_le_support(hdev);
-	if (status)
+	if (!lmp_le_capable(hdev))
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_STATIC_ADDRESS,
-				  status);
+				  MGMT_STATUS_NOT_SUPPORTED);
 
 	if (hdev_is_powered(hdev))
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_STATIC_ADDRESS,
-- 
cgit 


From 9060d5cf5200c37dd23f5502bd7c3ccadce04a5f Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 2 Oct 2013 21:16:07 -0700
Subject: Bluetooth: Restrict loading of link keys to BR/EDR capable
 controllers

Loading link keys into a LE only controller make no sense. The kernel
would never use any of these keys. So instead of allowing userspace
to waste memory, reject such operation with a not supported error
message.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index bbe012e93b70..bf33c5280f66 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1825,6 +1825,12 @@ static int load_link_keys(struct sock *sk, struct hci_dev *hdev, void *data,
 	u16 key_count, expected_len;
 	int i;
 
+	BT_DBG("request for %s", hdev->name);
+
+	if (!lmp_bredr_capable(hdev))
+		return cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
+				  MGMT_STATUS_NOT_SUPPORTED);
+
 	key_count = __le16_to_cpu(cp->key_count);
 
 	expected_len = sizeof(*cp) + key_count *
-- 
cgit 


From cf99ba1359701ce82e756368513ddd0c5a7164ba Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 2 Oct 2013 21:16:08 -0700
Subject: Bluetooth: Restrict loading of long term keys to LE capable
 controllers

Loading long term keys into a BR/EDR only controller make no sense.
The kernel would never use any of these keys. So instead of allowing
userspace to waste memory, reject such operation with a not supported
error message.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index bf33c5280f66..4ce0f118e4cd 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3553,6 +3553,12 @@ static int load_long_term_keys(struct sock *sk, struct hci_dev *hdev,
 	u16 key_count, expected_len;
 	int i, err;
 
+	BT_DBG("request for %s", hdev->name);
+
+	if (!lmp_le_capable(hdev))
+		return cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS,
+				  MGMT_STATUS_NOT_SUPPORTED);
+
 	key_count = __le16_to_cpu(cp->key_count);
 
 	expected_len = sizeof(*cp) + key_count *
-- 
cgit 


From 6203fc983457a19a1c4c491ab0e94b4c4c884fb9 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 2 Oct 2013 23:37:29 -0700
Subject: Bluetooth: Allow changing device class when BR/EDR is disabled

Changing the device class when BR/EDR is disabled has no visible
effect for remote devices. However to simplify the logic allow it
as long as the controller supports BR/EDR operations.

If it is not allowed, then the overall logic becomes rather
complicated since the class of device values would need clearing
or restoring when BR/EDR setting changes.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 4ce0f118e4cd..16125ff918f1 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1757,7 +1757,7 @@ static int set_dev_class(struct sock *sk, struct hci_dev *hdev, void *data,
 
 	BT_DBG("request for %s", hdev->name);
 
-	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
+	if (!lmp_bredr_capable(hdev))
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_DEV_CLASS,
 				  MGMT_STATUS_NOT_SUPPORTED);
 
-- 
cgit 


From a28776296c7e3f2d0bb34e0e746968627fe588e8 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 2 Oct 2013 23:46:54 -0700
Subject: Bluetooth: Fix switch statement order for L2CAP fixed channels

The switch statement for the various L2CAP fixed channel handlers
is not really ordered.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/l2cap_core.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 814563d15476..0661ca693db5 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -6466,9 +6466,6 @@ static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb)
 	BT_DBG("len %d, cid 0x%4.4x", len, cid);
 
 	switch (cid) {
-	case L2CAP_CID_LE_SIGNALING:
-		l2cap_le_sig_channel(conn, skb);
-		break;
 	case L2CAP_CID_SIGNALING:
 		l2cap_sig_channel(conn, skb);
 		break;
@@ -6483,6 +6480,10 @@ static void l2cap_recv_frame(struct l2cap_conn *conn, struct sk_buff *skb)
 		l2cap_att_channel(conn, skb);
 		break;
 
+	case L2CAP_CID_LE_SIGNALING:
+		l2cap_le_sig_channel(conn, skb);
+		break;
+
 	case L2CAP_CID_SMP:
 		if (smp_sig_channel(conn, skb))
 			l2cap_conn_del(conn->hcon, EACCES);
-- 
cgit 


From 94b6a09b67ac4f0772d298aec0973fe3261150a0 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 2 Oct 2013 23:51:49 -0700
Subject: Bluetooth: Don't copy L2CAP LE signalling to raw sockets

The L2CAP raw sockets are only used for BR/EDR signalling. Packets
on LE links should not be forwarded there.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/l2cap_core.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 0661ca693db5..65c53719b76c 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -5327,8 +5327,6 @@ static inline void l2cap_le_sig_channel(struct l2cap_conn *conn,
 	struct l2cap_cmd_hdr cmd;
 	int err;
 
-	l2cap_raw_recv(conn, skb);
-
 	if (hcon->type != LE_LINK)
 		goto drop;
 
-- 
cgit 


From 7b9899dbcf432b188f3cc22bd1ad9e8050c496fc Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 3 Oct 2013 00:00:57 -0700
Subject: Bluetooth: SMP packets are only valid on LE connections

When receiving SMP packets on a BR/EDR connection, then just drop
the packet and do not try to process it.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/smp.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index b5562abdd6e0..6e0494971db1 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -847,10 +847,16 @@ static int smp_cmd_master_ident(struct l2cap_conn *conn, struct sk_buff *skb)
 
 int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb)
 {
+	struct hci_conn *hcon = conn->hcon;
 	__u8 code = skb->data[0];
 	__u8 reason;
 	int err = 0;
 
+	if (hcon->type != LE_LINK) {
+		kfree_skb(skb);
+		return -ENOTSUPP;
+	}
+
 	if (!test_bit(HCI_LE_ENABLED, &conn->hcon->hdev->dev_flags)) {
 		err = -ENOTSUPP;
 		reason = SMP_PAIRING_NOTSUPP;
-- 
cgit 


From ae4fd2d37433ba58e17adbf1694b7b66eeaec76c Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 3 Oct 2013 00:03:39 -0700
Subject: Bluetooth: L2CAP connectionless channels are only valid for BR/EDR

When receiving connectionless packets on a LE connection, just drop
the packet. There is no concept of connectionless channels for LE.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/l2cap_core.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 65c53719b76c..102a510a153a 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -6403,8 +6403,12 @@ done:
 static void l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm,
 				  struct sk_buff *skb)
 {
+	struct hci_conn *hcon = conn->hcon;
 	struct l2cap_chan *chan;
 
+	if (hcon->type != ACL_LINK)
+		goto drop;
+
 	chan = l2cap_global_chan_by_psm(0, psm, conn->src, conn->dst);
 	if (!chan)
 		goto drop;
-- 
cgit 


From 84919b96feebaf95f1739232c2984d69c2ee0802 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Thu, 3 Oct 2013 10:18:36 +0200
Subject: ARM: ux500: register the tc35892 GPIO on the TVK UIB

The TVK1281618 UIB has a TC35892 GPIO expander on it, which has
in the past probably been confused with the GPIO expander on the
older HREF plus previous to v60, which is on an entirely different
part of the system with another I2C address. Register the expander
in the right place.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-href-tvk1281618.dtsi | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm/boot/dts/ste-href-tvk1281618.dtsi b/arch/arm/boot/dts/ste-href-tvk1281618.dtsi
index 89e1485a3850..76d3ef13175f 100644
--- a/arch/arm/boot/dts/ste-href-tvk1281618.dtsi
+++ b/arch/arm/boot/dts/ste-href-tvk1281618.dtsi
@@ -16,5 +16,26 @@
 / {
 	soc {
 		/* Add Synaptics touch screen, TC35892 keypad etc here */
+		i2c@80004000 {
+			tc3589x@44 {
+				compatible = "tc3589x";
+				reg = <0x44>;
+				interrupt-parent = <&gpio6>;
+				interrupts = <26 IRQ_TYPE_EDGE_RISING>;
+
+				interrupt-controller;
+				#interrupt-cells = <2>;
+
+				tc3589x_gpio {
+					compatible = "tc3589x-gpio";
+					interrupts = <0 IRQ_TYPE_EDGE_RISING>;
+
+					interrupt-controller;
+					#interrupt-cells = <2>;
+					gpio-controller;
+					#gpio-cells = <2>;
+				};
+			};
+		};
 	};
 };
-- 
cgit 


From 741a6c4c59cfa1266bc75aca9f66bdc6e421b0d5 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Thu, 3 Oct 2013 10:29:24 +0200
Subject: ARM: ux500: move BU21013 touchpad GPIOs into top-level DTS

The BU21013 touchscreen GPIOs have been pretty confused, correct
them per board, and move the GPIO assignments up to the top
level DTS file so we can control it from there, and avoid defining
the GPIO assignments for non-ST UIB equipped boards.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-href-stuib.dtsi       |  2 --
 arch/arm/boot/dts/ste-hrefprev60-stuib.dts  |  6 ++++++
 arch/arm/boot/dts/ste-hrefprev60.dtsi       |  6 ------
 arch/arm/boot/dts/ste-hrefv60plus-stuib.dts | 10 ++++++++--
 arch/arm/boot/dts/ste-hrefv60plus.dtsi      |  6 ------
 5 files changed, 14 insertions(+), 16 deletions(-)

diff --git a/arch/arm/boot/dts/ste-href-stuib.dtsi b/arch/arm/boot/dts/ste-href-stuib.dtsi
index 524e33240ad4..76704ec0ffcc 100644
--- a/arch/arm/boot/dts/ste-href-stuib.dtsi
+++ b/arch/arm/boot/dts/ste-href-stuib.dtsi
@@ -57,7 +57,6 @@
 			bu21013_tp@5c {
 				compatible = "rohm,bu21013_tp";
 				reg = <0x5c>;
-				touch-gpio = <&gpio2 20 0x4>;
 				avdd-supply = <&ab8500_ldo_aux1_reg>;
 
 				rohm,touch-max-x = <384>;
@@ -68,7 +67,6 @@
 			bu21013_tp@5d {
 				compatible = "rohm,bu21013_tp";
 				reg = <0x5d>;
-				touch-gpio = <&gpio2 20 0x4>;
 				avdd-supply = <&ab8500_ldo_aux1_reg>;
 
 				rohm,touch-max-x = <384>;
diff --git a/arch/arm/boot/dts/ste-hrefprev60-stuib.dts b/arch/arm/boot/dts/ste-hrefprev60-stuib.dts
index 3e1b974b43a1..2b1cb5b584b6 100644
--- a/arch/arm/boot/dts/ste-hrefprev60-stuib.dts
+++ b/arch/arm/boot/dts/ste-hrefprev60-stuib.dts
@@ -20,7 +20,13 @@
 	soc {
 		/* Reset line for the BU21013 touchscreen */
 		i2c@80110000 {
+			/* Only one of these will be used */
 			bu21013_tp@5c {
+				touch-gpio = <&gpio2 12 0x4>;
+				reset-gpio = <&tc3589x_gpio 13 0x4>;
+			};
+			bu21013_tp@5d {
+				touch-gpio = <&gpio2 12 0x4>;
 				reset-gpio = <&tc3589x_gpio 13 0x4>;
 			};
 		};
diff --git a/arch/arm/boot/dts/ste-hrefprev60.dtsi b/arch/arm/boot/dts/ste-hrefprev60.dtsi
index de6b0a0c5a54..b2cd7bc2752f 100644
--- a/arch/arm/boot/dts/ste-hrefprev60.dtsi
+++ b/arch/arm/boot/dts/ste-hrefprev60.dtsi
@@ -49,12 +49,6 @@
 			};
 		};
 
-		i2c@80110000 {
-			bu21013_tp@5c {
-				reset-gpio = <&tc3589x_gpio 13 0x4>;
-			};
-		};
-
 		vmmci: regulator-gpio {
 			gpios = <&tc3589x_gpio 18 0x4>;
 			enable-gpio = <&tc3589x_gpio 17 0x4>;
diff --git a/arch/arm/boot/dts/ste-hrefv60plus-stuib.dts b/arch/arm/boot/dts/ste-hrefv60plus-stuib.dts
index 4da49e7988e9..8c6a2de56cf1 100644
--- a/arch/arm/boot/dts/ste-hrefv60plus-stuib.dts
+++ b/arch/arm/boot/dts/ste-hrefv60plus-stuib.dts
@@ -22,8 +22,14 @@
 	soc {
 		/* Reset line for the BU21013 touchscreen */
 		i2c@80110000 {
-			bu21013_tp@0x5c {
-				reset-gpio = <&gpio4 15 0x4>;
+			/* Only one of these will be used */
+			bu21013_tp@5c {
+				touch-gpio = <&gpio2 20 0x4>;
+				reset-gpio = <&gpio4 17 0x4>;
+			};
+			bu21013_tp@5d {
+				touch-gpio = <&gpio2 20 0x4>;
+				reset-gpio = <&gpio4 17 0x4>;
 			};
 		};
 	};
diff --git a/arch/arm/boot/dts/ste-hrefv60plus.dtsi b/arch/arm/boot/dts/ste-hrefv60plus.dtsi
index d0f116555c0e..aed511b47a9e 100644
--- a/arch/arm/boot/dts/ste-hrefv60plus.dtsi
+++ b/arch/arm/boot/dts/ste-hrefv60plus.dtsi
@@ -23,12 +23,6 @@
 	};
 
 	soc {
-		i2c@80110000 {
-			bu21013_tp@0x5c {
-				reset-gpio = <&gpio4 15 0x4>;
-			};
-		};
-
 		// External Micro SD slot
 		sdi0_per1@80126000 {
 			arm,primecell-periphid = <0x10480180>;
-- 
cgit 


From 29242cb5c63b1f8e12e8055ba1a6c3e0004fa86d Mon Sep 17 00:00:00 2001
From: Andre Richter <andre.o.richter@gmail.com>
Date: Wed, 2 Oct 2013 12:23:26 +0200
Subject: virt/kvm/iommu.c: Add leading zeros to device's BDF notation in debug
 messages

When KVM (de)assigns PCI(e) devices to VMs, a debug message is printed
including the BDF notation of the respective device. Currently, the BDF
notation does not have the commonly used leading zeros. This produces
messages like "assign device 0:1:8.0", which look strange at first sight.

The patch fixes this by exchanging the printk(KERN_DEBUG ...) with dev_info()
and also inserts "kvm" into the debug message, so that it is obvious where
the message comes from. Also reduces LoC.

Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Andre Richter <andre.o.richter@gmail.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 virt/kvm/iommu.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c
index 72a130bc448a..a3b14109049b 100644
--- a/virt/kvm/iommu.c
+++ b/virt/kvm/iommu.c
@@ -190,11 +190,7 @@ int kvm_assign_device(struct kvm *kvm,
 
 	pdev->dev_flags |= PCI_DEV_FLAGS_ASSIGNED;
 
-	printk(KERN_DEBUG "assign device %x:%x:%x.%x\n",
-		assigned_dev->host_segnr,
-		assigned_dev->host_busnr,
-		PCI_SLOT(assigned_dev->host_devfn),
-		PCI_FUNC(assigned_dev->host_devfn));
+	dev_info(&pdev->dev, "kvm assign device\n");
 
 	return 0;
 out_unmap:
@@ -220,11 +216,7 @@ int kvm_deassign_device(struct kvm *kvm,
 
 	pdev->dev_flags &= ~PCI_DEV_FLAGS_ASSIGNED;
 
-	printk(KERN_DEBUG "deassign device %x:%x:%x.%x\n",
-		assigned_dev->host_segnr,
-		assigned_dev->host_busnr,
-		PCI_SLOT(assigned_dev->host_devfn),
-		PCI_FUNC(assigned_dev->host_devfn));
+	dev_info(&pdev->dev, "kvm deassign device\n");
 
 	return 0;
 }
-- 
cgit 


From 647e23bb333ff196e7be8ae08c842d855fb850f6 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Wed, 2 Oct 2013 16:06:14 +0200
Subject: KVM: x86: mask unsupported XSAVE entries from leaf 0Dh index 0

XSAVE entries that KVM does not support are reported by
KVM_GET_SUPPORTED_CPUID for leaf 0Dh index 0 if the host supports them;
they should be left out unless there is also hypervisor support for them.

Sub-leafs are correctly handled in supported_xcr0_bit, fix index 0
to match.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/kvm/cpuid.c | 4 +++-
 arch/x86/kvm/x86.h   | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index b110fe6c03d4..a03a9faf81b0 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -182,7 +182,7 @@ static bool supported_xcr0_bit(unsigned bit)
 {
 	u64 mask = ((u64)1 << bit);
 
-	return mask & (XSTATE_FP | XSTATE_SSE | XSTATE_YMM) & host_xcr0;
+	return mask & KVM_SUPPORTED_XCR0 & host_xcr0;
 }
 
 #define F(x) bit(X86_FEATURE_##x)
@@ -383,6 +383,8 @@ static int do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
 	case 0xd: {
 		int idx, i;
 
+		entry->eax &= host_xcr0 & KVM_SUPPORTED_XCR0;
+		entry->edx &= (host_xcr0 & KVM_SUPPORTED_XCR0) >> 32;
 		entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
 		for (idx = 1, i = 1; idx < 64; ++idx) {
 			if (*nent >= maxnent)
diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h
index e224f7a671b6..587fb9ede436 100644
--- a/arch/x86/kvm/x86.h
+++ b/arch/x86/kvm/x86.h
@@ -122,6 +122,7 @@ int kvm_write_guest_virt_system(struct x86_emulate_ctxt *ctxt,
 	gva_t addr, void *val, unsigned int bytes,
 	struct x86_exception *exception);
 
+#define KVM_SUPPORTED_XCR0	(XSTATE_FP | XSTATE_SSE | XSTATE_YMM)
 extern u64 host_xcr0;
 
 extern struct static_key kvm_no_apic_vcpu;
-- 
cgit 


From d7876f1be40a16223a44355740de625849504eb5 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Wed, 2 Oct 2013 16:06:15 +0200
Subject: KVM: x86: prevent setting unsupported XSAVE states

A guest can still attempt to save and restore XSAVE states even if they
have been masked in CPUID leaf 0Dh.  This usually is not visible to
the guest, but is still wrong: "Any attempt to set a reserved bit (as
determined by the contents of EAX and EDX after executing CPUID with
EAX=0DH, ECX= 0H) in XCR0 for a given processor will result in a #GP
exception".

The patch also performs the same checks as __kvm_set_xcr in KVM_SET_XSAVE.
This catches migration from newer to older kernel/processor before the
guest starts running.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/include/asm/kvm_host.h |  1 +
 arch/x86/kvm/cpuid.c            |  8 ++++++++
 arch/x86/kvm/x86.c              | 18 +++++++++++++++---
 3 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index c76ff74a98f2..35d10d1a6b58 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -389,6 +389,7 @@ struct kvm_vcpu_arch {
 
 	struct fpu guest_fpu;
 	u64 xcr0;
+	u64 guest_supported_xcr0;
 
 	struct kvm_pio_request pio;
 	void *pio_data;
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index a03a9faf81b0..5a5ff94fef65 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -46,6 +46,14 @@ void kvm_update_cpuid(struct kvm_vcpu *vcpu)
 			apic->lapic_timer.timer_mode_mask = 1 << 17;
 	}
 
+	best = kvm_find_cpuid_entry(vcpu, 0xD, 0);
+	if (!best)
+		vcpu->arch.guest_supported_xcr0 = 0;
+	else
+		vcpu->arch.guest_supported_xcr0 =
+			(best->eax | ((u64)best->edx << 32)) &
+			host_xcr0 & KVM_SUPPORTED_XCR0;
+
 	kvm_pmu_cpuid_update(vcpu);
 }
 
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 187f824b1454..7d5c5207a414 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -586,7 +586,7 @@ int __kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr)
 		return 1;
 	if ((xcr0 & XSTATE_YMM) && !(xcr0 & XSTATE_SSE))
 		return 1;
-	if (xcr0 & ~host_xcr0)
+	if (xcr0 & ~vcpu->arch.guest_supported_xcr0)
 		return 1;
 	kvm_put_guest_xcr0(vcpu);
 	vcpu->arch.xcr0 = xcr0;
@@ -3003,10 +3003,19 @@ static int kvm_vcpu_ioctl_x86_set_xsave(struct kvm_vcpu *vcpu,
 	u64 xstate_bv =
 		*(u64 *)&guest_xsave->region[XSAVE_HDR_OFFSET / sizeof(u32)];
 
-	if (cpu_has_xsave)
+	if (cpu_has_xsave) {
+		/*
+		 * Here we allow setting states that are not present in
+		 * CPUID leaf 0xD, index 0, EDX:EAX.  This is for compatibility
+		 * with old userspace.
+		 */
+		if (xstate_bv & ~KVM_SUPPORTED_XCR0)
+			return -EINVAL;
+		if (xstate_bv & ~host_xcr0)
+			return -EINVAL;
 		memcpy(&vcpu->arch.guest_fpu.state->xsave,
 			guest_xsave->region, xstate_size);
-	else {
+	} else {
 		if (xstate_bv & ~XSTATE_FPSSE)
 			return -EINVAL;
 		memcpy(&vcpu->arch.guest_fpu.state->fxsave,
@@ -6940,6 +6949,9 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
 
 	vcpu->arch.ia32_tsc_adjust_msr = 0x0;
 	vcpu->arch.pv_time_enabled = false;
+
+	vcpu->arch.guest_supported_xcr0 = 0;
+
 	kvm_async_pf_hash_reset(vcpu);
 	kvm_pmu_init(vcpu);
 
-- 
cgit 


From 4344ee981e21990f8ea14d3c9e3890b9b7b06279 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Wed, 2 Oct 2013 16:06:16 +0200
Subject: KVM: x86: only copy XSAVE state for the supported features

This makes the interface more deterministic for userspace, which can expect
(after configuring only the features it supports) to get exactly the same
state from the kernel, independent of the host CPU and kernel version.

Suggested-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/include/asm/kvm_host.h |  1 +
 arch/x86/kvm/cpuid.c            | 28 ++++++++++++++++++++++++++--
 arch/x86/kvm/x86.c              | 11 +++++++----
 3 files changed, 34 insertions(+), 6 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 35d10d1a6b58..52110d0ceb13 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -390,6 +390,7 @@ struct kvm_vcpu_arch {
 	struct fpu guest_fpu;
 	u64 xcr0;
 	u64 guest_supported_xcr0;
+	u32 guest_xstate_size;
 
 	struct kvm_pio_request pio;
 	void *pio_data;
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 5a5ff94fef65..0a1e3b8b964d 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -23,6 +23,26 @@
 #include "mmu.h"
 #include "trace.h"
 
+static u32 xstate_required_size(u64 xstate_bv)
+{
+	int feature_bit = 0;
+	u32 ret = XSAVE_HDR_SIZE + XSAVE_HDR_OFFSET;
+
+	xstate_bv &= ~XSTATE_FPSSE;
+	while (xstate_bv) {
+		if (xstate_bv & 0x1) {
+		        u32 eax, ebx, ecx, edx;
+		        cpuid_count(0xD, feature_bit, &eax, &ebx, &ecx, &edx);
+			ret = max(ret, eax + ebx);
+		}
+
+		xstate_bv >>= 1;
+		feature_bit++;
+	}
+
+	return ret;
+}
+
 void kvm_update_cpuid(struct kvm_vcpu *vcpu)
 {
 	struct kvm_cpuid_entry2 *best;
@@ -47,12 +67,16 @@ void kvm_update_cpuid(struct kvm_vcpu *vcpu)
 	}
 
 	best = kvm_find_cpuid_entry(vcpu, 0xD, 0);
-	if (!best)
+	if (!best) {
 		vcpu->arch.guest_supported_xcr0 = 0;
-	else
+		vcpu->arch.guest_xstate_size = XSAVE_HDR_SIZE + XSAVE_HDR_OFFSET;
+	} else {
 		vcpu->arch.guest_supported_xcr0 =
 			(best->eax | ((u64)best->edx << 32)) &
 			host_xcr0 & KVM_SUPPORTED_XCR0;
+		vcpu->arch.guest_xstate_size =
+			xstate_required_size(vcpu->arch.guest_supported_xcr0);
+	}
 
 	kvm_pmu_cpuid_update(vcpu);
 }
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 7d5c5207a414..e8e2d09dfe7d 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2984,11 +2984,13 @@ static int kvm_vcpu_ioctl_x86_set_debugregs(struct kvm_vcpu *vcpu,
 static void kvm_vcpu_ioctl_x86_get_xsave(struct kvm_vcpu *vcpu,
 					 struct kvm_xsave *guest_xsave)
 {
-	if (cpu_has_xsave)
+	if (cpu_has_xsave) {
 		memcpy(guest_xsave->region,
 			&vcpu->arch.guest_fpu.state->xsave,
-			xstate_size);
-	else {
+			vcpu->arch.guest_xstate_size);
+		*(u64 *)&guest_xsave->region[XSAVE_HDR_OFFSET / sizeof(u32)] &=
+			vcpu->arch.guest_supported_xcr0 | XSTATE_FPSSE;
+	} else {
 		memcpy(guest_xsave->region,
 			&vcpu->arch.guest_fpu.state->fxsave,
 			sizeof(struct i387_fxsave_struct));
@@ -3014,7 +3016,7 @@ static int kvm_vcpu_ioctl_x86_set_xsave(struct kvm_vcpu *vcpu,
 		if (xstate_bv & ~host_xcr0)
 			return -EINVAL;
 		memcpy(&vcpu->arch.guest_fpu.state->xsave,
-			guest_xsave->region, xstate_size);
+			guest_xsave->region, vcpu->arch.guest_xstate_size);
 	} else {
 		if (xstate_bv & ~XSTATE_FPSSE)
 			return -EINVAL;
@@ -6951,6 +6953,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
 	vcpu->arch.pv_time_enabled = false;
 
 	vcpu->arch.guest_supported_xcr0 = 0;
+	vcpu->arch.guest_xstate_size = XSAVE_HDR_SIZE + XSAVE_HDR_OFFSET;
 
 	kvm_async_pf_hash_reset(vcpu);
 	kvm_pmu_init(vcpu);
-- 
cgit 


From b99707d7ee887f9df8b3f7cf75e1e9dbf3206df3 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 3 Oct 2013 02:54:11 -0700
Subject: Bluetooth: Drop packets on ATT fixed channel on BR/EDR

The ATT fixed channel is only valid when using LE connections. On
BR/EDR it is required to go through L2CAP connection oriented
channel for ATT.

Drop ATT packets when they are received on a BR/EDR connection.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/l2cap_core.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 102a510a153a..583517e1dd43 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -6431,8 +6431,12 @@ drop:
 static void l2cap_att_channel(struct l2cap_conn *conn,
 			      struct sk_buff *skb)
 {
+	struct hci_conn *hcon = conn->hcon;
 	struct l2cap_chan *chan;
 
+	if (hcon->type != LE_LINK)
+		goto drop;
+
 	chan = l2cap_global_chan_by_scid(BT_CONNECTED, L2CAP_CID_ATT,
 					 conn->src, conn->dst);
 	if (!chan)
-- 
cgit 


From 92381f5cd72b3fb415efe2406ad9fa462a223151 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 3 Oct 2013 01:23:08 -0700
Subject: Bluetooth: Check minimum length of SMP packets

When SMP packets are received, make sure they contain at least 1 byte
header for the opcode. If not, drop the packet and disconnect the link.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/smp.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 6e0494971db1..884b2081a262 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -848,8 +848,7 @@ static int smp_cmd_master_ident(struct l2cap_conn *conn, struct sk_buff *skb)
 int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb)
 {
 	struct hci_conn *hcon = conn->hcon;
-	__u8 code = skb->data[0];
-	__u8 reason;
+	__u8 code, reason;
 	int err = 0;
 
 	if (hcon->type != LE_LINK) {
@@ -857,12 +856,18 @@ int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb)
 		return -ENOTSUPP;
 	}
 
+	if (skb->len < 1) {
+		kfree_skb(skb);
+		return -EILSEQ;
+	}
+
 	if (!test_bit(HCI_LE_ENABLED, &conn->hcon->hdev->dev_flags)) {
 		err = -ENOTSUPP;
 		reason = SMP_PAIRING_NOTSUPP;
 		goto done;
 	}
 
+	code = skb->data[0];
 	skb_pull(skb, sizeof(code));
 
 	/*
-- 
cgit 


From cf732b5fa30f5dc421b4c1911bc2446b9bcbc025 Mon Sep 17 00:00:00 2001
From: Alexey Khoroshilov <khoroshilov@ispras.ru>
Date: Wed, 2 Oct 2013 13:00:26 -0300
Subject: [media] dvb-usb: fix error handling in ttusb_dec_probe()

There is an asymmetry in ttusb_dec_init_usb()-ttusb_init_rc()
and ttusb_dec_exit_usb()-ttusb_dec_exit_rc() in terms of resources
allocated-deallocated. irq_urb and irq_buffer are allocated in
ttusb_dec_init_usb(), while they are deallocated in ttusb_dec_exit_rc().
As a result there is a leak of them in ttusb_dec_probe().
The patch fixes the asymmetry and a leak on a failure path in ttusb_dec_init_usb().
By the way, it
- removes usage of -1 as a custom error code,
- replaces GFP_ATOMIC by GFP_KERNEL in usb_alloc_coherent() in ttusb_dec_init_usb()
  as soon as all other memory allocation done with GFP_KERNEL;
- refactors ttusb_dec_boot_dsp() in an equivalent way except for returning 0
  instead of 1 if ttusb_dec_boot_dsp() succeed in (!mode) branch.
Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/ttusb-dec/ttusb_dec.c | 152 +++++++++++++++++---------------
 1 file changed, 82 insertions(+), 70 deletions(-)

diff --git a/drivers/media/usb/ttusb-dec/ttusb_dec.c b/drivers/media/usb/ttusb-dec/ttusb_dec.c
index e52c3b97f304..29724af9b9ab 100644
--- a/drivers/media/usb/ttusb-dec/ttusb_dec.c
+++ b/drivers/media/usb/ttusb-dec/ttusb_dec.c
@@ -366,7 +366,7 @@ static int ttusb_dec_get_stb_state (struct ttusb_dec *dec, unsigned int *mode,
 		}
 		return 0;
 	} else {
-		return -1;
+		return -ENOENT;
 	}
 }
 
@@ -1241,6 +1241,8 @@ static void ttusb_dec_init_v_pes(struct ttusb_dec *dec)
 
 static int ttusb_dec_init_usb(struct ttusb_dec *dec)
 {
+	int result;
+
 	dprintk("%s\n", __func__);
 
 	mutex_init(&dec->usb_mutex);
@@ -1258,7 +1260,7 @@ static int ttusb_dec_init_usb(struct ttusb_dec *dec)
 			return -ENOMEM;
 		}
 		dec->irq_buffer = usb_alloc_coherent(dec->udev,IRQ_PACKET_SIZE,
-					GFP_ATOMIC, &dec->irq_dma_handle);
+					GFP_KERNEL, &dec->irq_dma_handle);
 		if(!dec->irq_buffer) {
 			usb_free_urb(dec->irq_urb);
 			return -ENOMEM;
@@ -1270,7 +1272,13 @@ static int ttusb_dec_init_usb(struct ttusb_dec *dec)
 		dec->irq_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 	}
 
-	return ttusb_dec_alloc_iso_urbs(dec);
+	result = ttusb_dec_alloc_iso_urbs(dec);
+	if (result) {
+		usb_free_urb(dec->irq_urb);
+		usb_free_coherent(dec->udev, IRQ_PACKET_SIZE,
+				  dec->irq_buffer, dec->irq_dma_handle);
+	}
+	return result;
 }
 
 static int ttusb_dec_boot_dsp(struct ttusb_dec *dec)
@@ -1293,10 +1301,11 @@ static int ttusb_dec_boot_dsp(struct ttusb_dec *dec)
 
 	dprintk("%s\n", __func__);
 
-	if (request_firmware(&fw_entry, dec->firmware_name, &dec->udev->dev)) {
+	result = request_firmware(&fw_entry, dec->firmware_name, &dec->udev->dev);
+	if (result) {
 		printk(KERN_ERR "%s: Firmware (%s) unavailable.\n",
 		       __func__, dec->firmware_name);
-		return 1;
+		return result;
 	}
 
 	firmware = fw_entry->data;
@@ -1306,7 +1315,7 @@ static int ttusb_dec_boot_dsp(struct ttusb_dec *dec)
 		printk("%s: firmware size too small for DSP code (%zu < 60).\n",
 			__func__, firmware_size);
 		release_firmware(fw_entry);
-		return -1;
+		return -ENOENT;
 	}
 
 	/* a 32 bit checksum over the first 56 bytes of the DSP Code is stored
@@ -1320,7 +1329,7 @@ static int ttusb_dec_boot_dsp(struct ttusb_dec *dec)
 		       "0x%08x != 0x%08x in file), file invalid.\n",
 			__func__, crc32_csum, crc32_check);
 		release_firmware(fw_entry);
-		return -1;
+		return -ENOENT;
 	}
 	memcpy(idstring, &firmware[36], 20);
 	idstring[20] = '\0';
@@ -1389,55 +1398,48 @@ static int ttusb_dec_init_stb(struct ttusb_dec *dec)
 	dprintk("%s\n", __func__);
 
 	result = ttusb_dec_get_stb_state(dec, &mode, &model, &version);
+	if (result)
+		return result;
 
-	if (!result) {
-		if (!mode) {
-			if (version == 0xABCDEFAB)
-				printk(KERN_INFO "ttusb_dec: no version "
-				       "info in Firmware\n");
-			else
-				printk(KERN_INFO "ttusb_dec: Firmware "
-				       "%x.%02x%c%c\n",
-				       version >> 24, (version >> 16) & 0xff,
-				       (version >> 8) & 0xff, version & 0xff);
-
-			result = ttusb_dec_boot_dsp(dec);
-			if (result)
-				return result;
-			else
-				return 1;
-		} else {
-			/* We can't trust the USB IDs that some firmwares
-			   give the box */
-			switch (model) {
-			case 0x00070001:
-			case 0x00070008:
-			case 0x0007000c:
-				ttusb_dec_set_model(dec, TTUSB_DEC3000S);
-				break;
-			case 0x00070009:
-			case 0x00070013:
-				ttusb_dec_set_model(dec, TTUSB_DEC2000T);
-				break;
-			case 0x00070011:
-				ttusb_dec_set_model(dec, TTUSB_DEC2540T);
-				break;
-			default:
-				printk(KERN_ERR "%s: unknown model returned "
-				       "by firmware (%08x) - please report\n",
-				       __func__, model);
-				return -1;
-				break;
-			}
+	if (!mode) {
+		if (version == 0xABCDEFAB)
+			printk(KERN_INFO "ttusb_dec: no version "
+			       "info in Firmware\n");
+		else
+			printk(KERN_INFO "ttusb_dec: Firmware "
+			       "%x.%02x%c%c\n",
+			       version >> 24, (version >> 16) & 0xff,
+			       (version >> 8) & 0xff, version & 0xff);
 
+		result = ttusb_dec_boot_dsp(dec);
+		if (result)
+			return result;
+	} else {
+		/* We can't trust the USB IDs that some firmwares
+		   give the box */
+		switch (model) {
+		case 0x00070001:
+		case 0x00070008:
+		case 0x0007000c:
+			ttusb_dec_set_model(dec, TTUSB_DEC3000S);
+			break;
+		case 0x00070009:
+		case 0x00070013:
+			ttusb_dec_set_model(dec, TTUSB_DEC2000T);
+			break;
+		case 0x00070011:
+			ttusb_dec_set_model(dec, TTUSB_DEC2540T);
+			break;
+		default:
+			printk(KERN_ERR "%s: unknown model returned "
+			       "by firmware (%08x) - please report\n",
+			       __func__, model);
+			return -ENOENT;
+		}
 			if (version >= 0x01770000)
 				dec->can_playback = 1;
-
-			return 0;
-		}
 	}
-	else
-		return result;
+	return 0;
 }
 
 static int ttusb_dec_init_dvb(struct ttusb_dec *dec)
@@ -1539,19 +1541,7 @@ static void ttusb_dec_exit_dvb(struct ttusb_dec *dec)
 
 static void ttusb_dec_exit_rc(struct ttusb_dec *dec)
 {
-
 	dprintk("%s\n", __func__);
-	/* we have to check whether the irq URB is already submitted.
-	  * As the irq is submitted after the interface is changed,
-	  * this is the best method i figured out.
-	  * Any others?*/
-	if (dec->interface == TTUSB_DEC_INTERFACE_IN)
-		usb_kill_urb(dec->irq_urb);
-
-	usb_free_urb(dec->irq_urb);
-
-	usb_free_coherent(dec->udev,IRQ_PACKET_SIZE,
-			  dec->irq_buffer, dec->irq_dma_handle);
 
 	if (dec->rc_input_dev) {
 		input_unregister_device(dec->rc_input_dev);
@@ -1566,6 +1556,20 @@ static void ttusb_dec_exit_usb(struct ttusb_dec *dec)
 
 	dprintk("%s\n", __func__);
 
+	if (enable_rc) {
+		/* we have to check whether the irq URB is already submitted.
+		 * As the irq is submitted after the interface is changed,
+		 * this is the best method i figured out.
+		 * Any others?*/
+		if (dec->interface == TTUSB_DEC_INTERFACE_IN)
+			usb_kill_urb(dec->irq_urb);
+
+		usb_free_urb(dec->irq_urb);
+
+		usb_free_coherent(dec->udev, IRQ_PACKET_SIZE,
+				  dec->irq_buffer, dec->irq_dma_handle);
+	}
+
 	dec->iso_stream_count = 0;
 
 	for (i = 0; i < ISO_BUF_COUNT; i++)
@@ -1623,6 +1627,7 @@ static int ttusb_dec_probe(struct usb_interface *intf,
 {
 	struct usb_device *udev;
 	struct ttusb_dec *dec;
+	int result;
 
 	dprintk("%s\n", __func__);
 
@@ -1651,13 +1656,15 @@ static int ttusb_dec_probe(struct usb_interface *intf,
 
 	dec->udev = udev;
 
-	if (ttusb_dec_init_usb(dec))
-		return 0;
-	if (ttusb_dec_init_stb(dec)) {
-		ttusb_dec_exit_usb(dec);
-		return 0;
-	}
-	ttusb_dec_init_dvb(dec);
+	result = ttusb_dec_init_usb(dec);
+	if (result)
+		goto err_usb;
+	result = ttusb_dec_init_stb(dec);
+	if (result)
+		goto err_stb;
+	result = ttusb_dec_init_dvb(dec);
+	if (result)
+		goto err_stb;
 
 	dec->adapter.priv = dec;
 	switch (id->idProduct) {
@@ -1696,6 +1703,11 @@ static int ttusb_dec_probe(struct usb_interface *intf,
 		ttusb_init_rc(dec);
 
 	return 0;
+err_stb:
+	ttusb_dec_exit_usb(dec);
+err_usb:
+	kfree(dec);
+	return result;
 }
 
 static void ttusb_dec_disconnect(struct usb_interface *intf)
-- 
cgit 


From 0d78868094c482367692cf40f6c364e06815ad05 Mon Sep 17 00:00:00 2001
From: Luis Alves <ljalvs@gmail.com>
Date: Tue, 1 Oct 2013 22:11:19 -0300
Subject: [media] dvb: add cx24117 frontend

Add support for the cx24117 dual DVB-S/S2 frontend.

Signed-off-by: Luis Alves <ljalvs@gmail.com>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/dvb-frontends/Kconfig   |    7 +
 drivers/media/dvb-frontends/Makefile  |    1 +
 drivers/media/dvb-frontends/cx24117.c | 1621 +++++++++++++++++++++++++++++++++
 drivers/media/dvb-frontends/cx24117.h |   47 +
 4 files changed, 1676 insertions(+)
 create mode 100644 drivers/media/dvb-frontends/cx24117.c
 create mode 100644 drivers/media/dvb-frontends/cx24117.h

diff --git a/drivers/media/dvb-frontends/Kconfig b/drivers/media/dvb-frontends/Kconfig
index 0e2ec6f73b05..bddbab43a2df 100644
--- a/drivers/media/dvb-frontends/Kconfig
+++ b/drivers/media/dvb-frontends/Kconfig
@@ -200,6 +200,13 @@ config DVB_CX24116
 	help
 	  A DVB-S/S2 tuner module. Say Y when you want to support this frontend.
 
+config DVB_CX24117
+	tristate "Conexant CX24117 based"
+	depends on DVB_CORE && I2C
+	default m if !MEDIA_SUBDRV_AUTOSELECT
+	help
+	  A Dual DVB-S/S2 tuner module. Say Y when you want to support this frontend.
+
 config DVB_SI21XX
 	tristate "Silicon Labs SI21XX based"
 	depends on DVB_CORE && I2C
diff --git a/drivers/media/dvb-frontends/Makefile b/drivers/media/dvb-frontends/Makefile
index cebc0faffab5..f9cb43d9aed9 100644
--- a/drivers/media/dvb-frontends/Makefile
+++ b/drivers/media/dvb-frontends/Makefile
@@ -76,6 +76,7 @@ obj-$(CONFIG_DVB_ATBM8830) += atbm8830.o
 obj-$(CONFIG_DVB_DUMMY_FE) += dvb_dummy_fe.o
 obj-$(CONFIG_DVB_AF9013) += af9013.o
 obj-$(CONFIG_DVB_CX24116) += cx24116.o
+obj-$(CONFIG_DVB_CX24117) += cx24117.o
 obj-$(CONFIG_DVB_SI21XX) += si21xx.o
 obj-$(CONFIG_DVB_STV0288) += stv0288.o
 obj-$(CONFIG_DVB_STB6000) += stb6000.o
diff --git a/drivers/media/dvb-frontends/cx24117.c b/drivers/media/dvb-frontends/cx24117.c
new file mode 100644
index 000000000000..3b6391352918
--- /dev/null
+++ b/drivers/media/dvb-frontends/cx24117.c
@@ -0,0 +1,1621 @@
+/*
+    Conexant cx24117/cx24132 - Dual DVBS/S2 Satellite demod/tuner driver
+
+    Copyright (C) 2013 Luis Alves <ljalvs@gmail.com>
+	July, 6th 2013
+	    First release based on cx24116 driver by:
+	    Steven Toth and Georg Acher, Darron Broad, Igor Liplianin
+	    Cards currently supported:
+		TBS6980 - Dual DVBS/S2 PCIe card
+		TBS6981 - Dual DVBS/S2 PCIe card
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <linux/slab.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/firmware.h>
+
+#include "dvb_frontend.h"
+#include "cx24117.h"
+
+
+#define CX24117_DEFAULT_FIRMWARE "dvb-fe-cx24117.fw"
+#define CX24117_SEARCH_RANGE_KHZ 5000
+
+/* known registers */
+#define CX24117_REG_COMMAND      (0x00)      /* command buffer */
+#define CX24117_REG_EXECUTE      (0x1f)      /* execute command */
+
+#define CX24117_REG_FREQ3_0      (0x34)      /* frequency */
+#define CX24117_REG_FREQ2_0      (0x35)
+#define CX24117_REG_FREQ1_0      (0x36)
+#define CX24117_REG_STATE0       (0x39)
+#define CX24117_REG_SSTATUS0     (0x3a)      /* demod0 signal high / status */
+#define CX24117_REG_SIGNAL0      (0x3b)
+#define CX24117_REG_FREQ5_0      (0x3c)      /* +-freq */
+#define CX24117_REG_FREQ6_0      (0x3d)
+#define CX24117_REG_SRATE2_0     (0x3e)      /* +- 1000 * srate */
+#define CX24117_REG_SRATE1_0     (0x3f)
+#define CX24117_REG_QUALITY2_0   (0x40)
+#define CX24117_REG_QUALITY1_0   (0x41)
+
+#define CX24117_REG_BER4_0       (0x47)
+#define CX24117_REG_BER3_0       (0x48)
+#define CX24117_REG_BER2_0       (0x49)
+#define CX24117_REG_BER1_0       (0x4a)
+#define CX24117_REG_DVBS_UCB2_0  (0x4b)
+#define CX24117_REG_DVBS_UCB1_0  (0x4c)
+#define CX24117_REG_DVBS2_UCB2_0 (0x50)
+#define CX24117_REG_DVBS2_UCB1_0 (0x51)
+#define CX24117_REG_QSTATUS0     (0x93)
+#define CX24117_REG_CLKDIV0      (0xe6)
+#define CX24117_REG_RATEDIV0     (0xf0)
+
+
+#define CX24117_REG_FREQ3_1      (0x55)      /* frequency */
+#define CX24117_REG_FREQ2_1      (0x56)
+#define CX24117_REG_FREQ1_1      (0x57)
+#define CX24117_REG_STATE1       (0x5a)
+#define CX24117_REG_SSTATUS1     (0x5b)      /* demod1 signal high / status */
+#define CX24117_REG_SIGNAL1      (0x5c)
+#define CX24117_REG_FREQ5_1      (0x5d)      /* +- freq */
+#define CX24117_REG_FREQ4_1      (0x5e)
+#define CX24117_REG_SRATE2_1     (0x5f)
+#define CX24117_REG_SRATE1_1     (0x60)
+#define CX24117_REG_QUALITY2_1   (0x61)
+#define CX24117_REG_QUALITY1_1   (0x62)
+#define CX24117_REG_BER4_1       (0x68)
+#define CX24117_REG_BER3_1       (0x69)
+#define CX24117_REG_BER2_1       (0x6a)
+#define CX24117_REG_BER1_1       (0x6b)
+#define CX24117_REG_DVBS_UCB2_1  (0x6c)
+#define CX24117_REG_DVBS_UCB1_1  (0x6d)
+#define CX24117_REG_DVBS2_UCB2_1 (0x71)
+#define CX24117_REG_DVBS2_UCB1_1 (0x72)
+#define CX24117_REG_QSTATUS1     (0x9f)
+#define CX24117_REG_CLKDIV1      (0xe7)
+#define CX24117_REG_RATEDIV1     (0xf1)
+
+
+/* arg buffer size */
+#define CX24117_ARGLEN       (0x1e)
+
+/* rolloff */
+#define CX24117_ROLLOFF_020  (0x00)
+#define CX24117_ROLLOFF_025  (0x01)
+#define CX24117_ROLLOFF_035  (0x02)
+
+/* pilot bit */
+#define CX24117_PILOT_OFF    (0x00)
+#define CX24117_PILOT_ON     (0x40)
+#define CX24117_PILOT_AUTO   (0x80)
+
+/* signal status */
+#define CX24117_HAS_SIGNAL   (0x01)
+#define CX24117_HAS_CARRIER  (0x02)
+#define CX24117_HAS_VITERBI  (0x04)
+#define CX24117_HAS_SYNCLOCK (0x08)
+#define CX24117_STATUS_MASK  (0x0f)
+#define CX24117_SIGNAL_MASK  (0xc0)
+
+
+/* arg offset for DiSEqC */
+#define CX24117_DISEQC_DEMOD  (1)
+#define CX24117_DISEQC_BURST  (2)
+#define CX24117_DISEQC_ARG3_2 (3)   /* unknown value=2 */
+#define CX24117_DISEQC_ARG4_0 (4)   /* unknown value=0 */
+#define CX24117_DISEQC_ARG5_0 (5)   /* unknown value=0 */
+#define CX24117_DISEQC_MSGLEN (6)
+#define CX24117_DISEQC_MSGOFS (7)
+
+/* DiSEqC burst */
+#define CX24117_DISEQC_MINI_A (0)
+#define CX24117_DISEQC_MINI_B (1)
+
+
+#define CX24117_PNE	(0) /* 0 disabled / 2 enabled */
+#define CX24117_OCC	(1) /* 0 disabled / 1 enabled */
+
+
+enum cmds {
+	CMD_SET_VCO     = 0x10,
+	CMD_TUNEREQUEST = 0x11,
+	CMD_MPEGCONFIG  = 0x13,
+	CMD_TUNERINIT   = 0x14,
+	CMD_LNBSEND     = 0x21, /* Formerly CMD_SEND_DISEQC */
+	CMD_LNBDCLEVEL  = 0x22,
+	CMD_SET_TONE    = 0x23,
+	CMD_UPDFWVERS   = 0x35,
+	CMD_TUNERSLEEP  = 0x36,
+};
+
+/* The Demod/Tuner can't easily provide these, we cache them */
+struct cx24117_tuning {
+	u32 frequency;
+	u32 symbol_rate;
+	fe_spectral_inversion_t inversion;
+	fe_code_rate_t fec;
+
+	fe_delivery_system_t delsys;
+	fe_modulation_t modulation;
+	fe_pilot_t pilot;
+	fe_rolloff_t rolloff;
+
+	/* Demod values */
+	u8 fec_val;
+	u8 fec_mask;
+	u8 inversion_val;
+	u8 pilot_val;
+	u8 rolloff_val;
+};
+
+/* Basic commands that are sent to the firmware */
+struct cx24117_cmd {
+	u8 len;
+	u8 args[CX24117_ARGLEN];
+};
+
+/* common to both fe's */
+struct cx24117_priv {
+	u8 demod_address;
+	struct i2c_adapter *i2c;
+	u8 skip_fw_load;
+
+	struct mutex fe_lock;
+	atomic_t fe_nr;
+};
+
+/* one per each fe */
+struct cx24117_state {
+	struct cx24117_priv *priv;
+	struct dvb_frontend frontend;
+
+	struct cx24117_tuning dcur;
+	struct cx24117_tuning dnxt;
+	struct cx24117_cmd dsec_cmd;
+
+	int demod;
+};
+
+/* modfec (modulation and FEC) lookup table */
+/* Check cx24116.c for a detailed description of each field */
+static struct cx24117_modfec {
+	fe_delivery_system_t delivery_system;
+	fe_modulation_t modulation;
+	fe_code_rate_t fec;
+	u8 mask;	/* In DVBS mode this is used to autodetect */
+	u8 val;		/* Passed to the firmware to indicate mode selection */
+} cx24117_modfec_modes[] = {
+	/* QPSK. For unknown rates we set hardware to auto detect 0xfe 0x30 */
+
+	/*mod   fec       mask  val */
+	{ SYS_DVBS, QPSK, FEC_NONE, 0xfe, 0x30 },
+	{ SYS_DVBS, QPSK, FEC_1_2,  0x02, 0x2e }, /* 00000010 00101110 */
+	{ SYS_DVBS, QPSK, FEC_2_3,  0x04, 0x2f }, /* 00000100 00101111 */
+	{ SYS_DVBS, QPSK, FEC_3_4,  0x08, 0x30 }, /* 00001000 00110000 */
+	{ SYS_DVBS, QPSK, FEC_4_5,  0xfe, 0x30 }, /* 000?0000 ?        */
+	{ SYS_DVBS, QPSK, FEC_5_6,  0x20, 0x31 }, /* 00100000 00110001 */
+	{ SYS_DVBS, QPSK, FEC_6_7,  0xfe, 0x30 }, /* 0?000000 ?        */
+	{ SYS_DVBS, QPSK, FEC_7_8,  0x80, 0x32 }, /* 10000000 00110010 */
+	{ SYS_DVBS, QPSK, FEC_8_9,  0xfe, 0x30 }, /* 0000000? ?        */
+	{ SYS_DVBS, QPSK, FEC_AUTO, 0xfe, 0x30 },
+	/* NBC-QPSK */
+	{ SYS_DVBS2, QPSK, FEC_NONE, 0x00, 0x00 },
+	{ SYS_DVBS2, QPSK, FEC_1_2,  0x00, 0x04 },
+	{ SYS_DVBS2, QPSK, FEC_3_5,  0x00, 0x05 },
+	{ SYS_DVBS2, QPSK, FEC_2_3,  0x00, 0x06 },
+	{ SYS_DVBS2, QPSK, FEC_3_4,  0x00, 0x07 },
+	{ SYS_DVBS2, QPSK, FEC_4_5,  0x00, 0x08 },
+	{ SYS_DVBS2, QPSK, FEC_5_6,  0x00, 0x09 },
+	{ SYS_DVBS2, QPSK, FEC_8_9,  0x00, 0x0a },
+	{ SYS_DVBS2, QPSK, FEC_9_10, 0x00, 0x0b },
+	{ SYS_DVBS2, QPSK, FEC_AUTO, 0x00, 0x00 },
+	/* 8PSK */
+	{ SYS_DVBS2, PSK_8, FEC_NONE, 0x00, 0x00 },
+	{ SYS_DVBS2, PSK_8, FEC_3_5,  0x00, 0x0c },
+	{ SYS_DVBS2, PSK_8, FEC_2_3,  0x00, 0x0d },
+	{ SYS_DVBS2, PSK_8, FEC_3_4,  0x00, 0x0e },
+	{ SYS_DVBS2, PSK_8, FEC_5_6,  0x00, 0x0f },
+	{ SYS_DVBS2, PSK_8, FEC_8_9,  0x00, 0x10 },
+	{ SYS_DVBS2, PSK_8, FEC_9_10, 0x00, 0x11 },
+	{ SYS_DVBS2, PSK_8, FEC_AUTO, 0x00, 0x00 },
+	/*
+	 * 'val' can be found in the FECSTATUS register when tuning.
+	 * FECSTATUS will give the actual FEC in use if tuning was successful.
+	 */
+};
+
+
+static int cx24117_writereg(struct cx24117_state *state, u8 reg, u8 data)
+{
+	u8 buf[] = { reg, data };
+	struct i2c_msg msg = { .addr = state->priv->demod_address,
+		.flags = 0, .buf = buf, .len = 2 };
+	int ret;
+
+	dev_dbg(&state->priv->i2c->dev,
+			"%s() demod%d i2c wr @0x%02x=0x%02x\n",
+			__func__, state->demod, reg, data);
+
+	ret = i2c_transfer(state->priv->i2c, &msg, 1);
+	if (ret < 0) {
+		dev_warn(&state->priv->i2c->dev,
+			"%s: demod%d i2c wr err(%i) @0x%02x=0x%02x\n",
+			KBUILD_MODNAME, state->demod, ret, reg, data);
+		return ret;
+	}
+	return 0;
+}
+
+static int cx24117_writecmd(struct cx24117_state *state,
+	struct cx24117_cmd *cmd)
+{
+	struct i2c_msg msg;
+	u8 buf[CX24117_ARGLEN+1];
+	int ret;
+
+	dev_dbg(&state->priv->i2c->dev,
+			"%s() demod%d i2c wr cmd len=%d\n",
+			__func__, state->demod, cmd->len);
+
+	buf[0] = CX24117_REG_COMMAND;
+	memcpy(&buf[1], cmd->args, cmd->len);
+
+	msg.addr = state->priv->demod_address;
+	msg.flags = 0;
+	msg.len = cmd->len+1;
+	msg.buf = buf;
+	ret = i2c_transfer(state->priv->i2c, &msg, 1);
+	if (ret < 0) {
+		dev_warn(&state->priv->i2c->dev,
+			"%s: demod%d i2c wr cmd err(%i) len=%d\n",
+			KBUILD_MODNAME, state->demod, ret, cmd->len);
+		return ret;
+	}
+	return 0;
+}
+
+static int cx24117_readreg(struct cx24117_state *state, u8 reg)
+{
+	int ret;
+	u8 recv = 0;
+	struct i2c_msg msg[] = {
+		{ .addr = state->priv->demod_address, .flags = 0,
+			.buf = &reg, .len = 1 },
+		{ .addr = state->priv->demod_address, .flags = I2C_M_RD,
+			.buf = &recv, .len = 1 }
+	};
+
+	ret = i2c_transfer(state->priv->i2c, msg, 2);
+	if (ret < 0) {
+		dev_warn(&state->priv->i2c->dev,
+			"%s: demod%d i2c rd err(%d) @0x%x\n",
+			KBUILD_MODNAME, state->demod, ret, reg);
+		return ret;
+	}
+
+	dev_dbg(&state->priv->i2c->dev, "%s() demod%d i2c rd @0x%02x=0x%02x\n",
+		__func__, state->demod, reg, recv);
+
+	return recv;
+}
+
+static int cx24117_readregN(struct cx24117_state *state,
+	u8 reg, u8 *buf, int len)
+{
+	int ret;
+	struct i2c_msg msg[] = {
+		{ .addr = state->priv->demod_address, .flags = 0,
+			.buf = &reg, .len = 1 },
+		{ .addr = state->priv->demod_address, .flags = I2C_M_RD,
+			.buf = buf, .len = len }
+	};
+
+	ret = i2c_transfer(state->priv->i2c, msg, 2);
+	if (ret < 0) {
+		dev_warn(&state->priv->i2c->dev,
+			"%s: demod%d i2c rd err(%d) @0x%x\n",
+			KBUILD_MODNAME, state->demod, ret, reg);
+		return ret;
+	}
+	return 0;
+}
+
+static int cx24117_set_inversion(struct cx24117_state *state,
+	fe_spectral_inversion_t inversion)
+{
+	dev_dbg(&state->priv->i2c->dev, "%s(%d) demod%d\n",
+		__func__, inversion, state->demod);
+
+	switch (inversion) {
+	case INVERSION_OFF:
+		state->dnxt.inversion_val = 0x00;
+		break;
+	case INVERSION_ON:
+		state->dnxt.inversion_val = 0x04;
+		break;
+	case INVERSION_AUTO:
+		state->dnxt.inversion_val = 0x0C;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	state->dnxt.inversion = inversion;
+
+	return 0;
+}
+
+static int cx24117_lookup_fecmod(struct cx24117_state *state,
+	fe_delivery_system_t d, fe_modulation_t m, fe_code_rate_t f)
+{
+	int i, ret = -EINVAL;
+
+	dev_dbg(&state->priv->i2c->dev,
+		"%s(demod(0x%02x,0x%02x) demod%d\n",
+		__func__, m, f, state->demod);
+
+	for (i = 0; i < ARRAY_SIZE(cx24117_modfec_modes); i++) {
+		if ((d == cx24117_modfec_modes[i].delivery_system) &&
+			(m == cx24117_modfec_modes[i].modulation) &&
+			(f == cx24117_modfec_modes[i].fec)) {
+				ret = i;
+				break;
+			}
+	}
+
+	return ret;
+}
+
+static int cx24117_set_fec(struct cx24117_state *state,
+	fe_delivery_system_t delsys, fe_modulation_t mod, fe_code_rate_t fec)
+{
+	int ret;
+
+	dev_dbg(&state->priv->i2c->dev,
+		"%s(0x%02x,0x%02x) demod%d\n",
+		__func__, mod, fec, state->demod);
+
+	ret = cx24117_lookup_fecmod(state, delsys, mod, fec);
+	if (ret < 0)
+		return ret;
+
+	state->dnxt.fec = fec;
+	state->dnxt.fec_val = cx24117_modfec_modes[ret].val;
+	state->dnxt.fec_mask = cx24117_modfec_modes[ret].mask;
+	dev_dbg(&state->priv->i2c->dev,
+		"%s() demod%d mask/val = 0x%02x/0x%02x\n", __func__,
+		state->demod, state->dnxt.fec_mask, state->dnxt.fec_val);
+
+	return 0;
+}
+
+static int cx24117_set_symbolrate(struct cx24117_state *state, u32 rate)
+{
+	dev_dbg(&state->priv->i2c->dev, "%s(%d) demod%d\n",
+		__func__, rate, state->demod);
+
+	state->dnxt.symbol_rate = rate;
+
+	dev_dbg(&state->priv->i2c->dev,
+		"%s() demod%d symbol_rate = %d\n",
+		__func__, state->demod, rate);
+
+	return 0;
+}
+
+static int cx24117_load_firmware(struct dvb_frontend *fe,
+	const struct firmware *fw);
+
+static int cx24117_firmware_ondemand(struct dvb_frontend *fe)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+	const struct firmware *fw;
+	int ret = 0;
+
+	dev_dbg(&state->priv->i2c->dev, "%s() demod%d skip_fw_load=%d\n",
+		__func__, state->demod, state->priv->skip_fw_load);
+
+	if (state->priv->skip_fw_load)
+		return 0;
+
+	/* check if firmware if already running */
+	if (cx24117_readreg(state, 0xeb) != 0xa) {
+		/* Load firmware */
+		/* request the firmware, this will block until loaded */
+		dev_dbg(&state->priv->i2c->dev,
+			"%s: Waiting for firmware upload (%s)...\n",
+			__func__, CX24117_DEFAULT_FIRMWARE);
+		ret = request_firmware(&fw, CX24117_DEFAULT_FIRMWARE,
+			state->priv->i2c->dev.parent);
+		dev_dbg(&state->priv->i2c->dev,
+			"%s: Waiting for firmware upload(2)...\n", __func__);
+		if (ret) {
+			dev_err(&state->priv->i2c->dev,
+				"%s: No firmware uploaded "
+				"(timeout or file not found?)\n", __func__);
+			return ret;
+		}
+
+		/* Make sure we don't recurse back through here
+		 * during loading */
+		state->priv->skip_fw_load = 1;
+
+		ret = cx24117_load_firmware(fe, fw);
+		if (ret)
+			dev_err(&state->priv->i2c->dev,
+				"%s: Writing firmware failed\n", __func__);
+		release_firmware(fw);
+
+		dev_info(&state->priv->i2c->dev,
+			"%s: Firmware upload %s\n", __func__,
+			ret == 0 ? "complete" : "failed");
+
+		/* Ensure firmware is always loaded if required */
+		state->priv->skip_fw_load = 0;
+	}
+
+	return ret;
+}
+
+/* Take a basic firmware command structure, format it
+ * and forward it for processing
+ */
+static int cx24117_cmd_execute_nolock(struct dvb_frontend *fe,
+	struct cx24117_cmd *cmd)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+	int i, ret;
+
+	dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n",
+		__func__, state->demod);
+
+	/* Load the firmware if required */
+	ret = cx24117_firmware_ondemand(fe);
+	if (ret != 0)
+		return ret;
+
+	/* Write the command */
+	cx24117_writecmd(state, cmd);
+
+	/* Start execution and wait for cmd to terminate */
+	cx24117_writereg(state, CX24117_REG_EXECUTE, 0x01);
+	i = 0;
+	while (cx24117_readreg(state, CX24117_REG_EXECUTE)) {
+		msleep(20);
+		if (i++ > 40) {
+			/* Avoid looping forever if the firmware does
+				not respond */
+			dev_warn(&state->priv->i2c->dev,
+				"%s() Firmware not responding\n", __func__);
+			return -EIO;
+		}
+	}
+	return 0;
+}
+
+static int cx24117_cmd_execute(struct dvb_frontend *fe, struct cx24117_cmd *cmd)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+	int ret;
+
+	mutex_lock(&state->priv->fe_lock);
+	ret = cx24117_cmd_execute_nolock(fe, cmd);
+	mutex_unlock(&state->priv->fe_lock);
+
+	return ret;
+}
+
+static int cx24117_load_firmware(struct dvb_frontend *fe,
+	const struct firmware *fw)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+	struct cx24117_cmd cmd;
+	int i, ret;
+	unsigned char vers[4];
+
+	struct i2c_msg msg;
+	u8 *buf;
+
+	dev_dbg(&state->priv->i2c->dev,
+		"%s() demod%d FW is %zu bytes (%02x %02x .. %02x %02x)\n",
+		__func__, state->demod, fw->size, fw->data[0], fw->data[1],
+		fw->data[fw->size-2], fw->data[fw->size-1]);
+
+	cx24117_writereg(state, 0xea, 0x00);
+	cx24117_writereg(state, 0xea, 0x01);
+	cx24117_writereg(state, 0xea, 0x00);
+
+	cx24117_writereg(state, 0xce, 0x92);
+
+	cx24117_writereg(state, 0xfb, 0x00);
+	cx24117_writereg(state, 0xfc, 0x00);
+
+	cx24117_writereg(state, 0xc3, 0x04);
+	cx24117_writereg(state, 0xc4, 0x04);
+
+	cx24117_writereg(state, 0xce, 0x00);
+	cx24117_writereg(state, 0xcf, 0x00);
+
+	cx24117_writereg(state, 0xea, 0x00);
+	cx24117_writereg(state, 0xeb, 0x0c);
+	cx24117_writereg(state, 0xec, 0x06);
+	cx24117_writereg(state, 0xed, 0x05);
+	cx24117_writereg(state, 0xee, 0x03);
+	cx24117_writereg(state, 0xef, 0x05);
+
+	cx24117_writereg(state, 0xf3, 0x03);
+	cx24117_writereg(state, 0xf4, 0x44);
+
+	cx24117_writereg(state, CX24117_REG_RATEDIV0, 0x04);
+	cx24117_writereg(state, CX24117_REG_CLKDIV0, 0x02);
+
+	cx24117_writereg(state, CX24117_REG_RATEDIV1, 0x04);
+	cx24117_writereg(state, CX24117_REG_CLKDIV1, 0x02);
+
+	cx24117_writereg(state, 0xf2, 0x04);
+	cx24117_writereg(state, 0xe8, 0x02);
+	cx24117_writereg(state, 0xea, 0x01);
+	cx24117_writereg(state, 0xc8, 0x00);
+	cx24117_writereg(state, 0xc9, 0x00);
+	cx24117_writereg(state, 0xca, 0x00);
+	cx24117_writereg(state, 0xcb, 0x00);
+	cx24117_writereg(state, 0xcc, 0x00);
+	cx24117_writereg(state, 0xcd, 0x00);
+	cx24117_writereg(state, 0xe4, 0x03);
+	cx24117_writereg(state, 0xeb, 0x0a);
+
+	cx24117_writereg(state, 0xfb, 0x00);
+	cx24117_writereg(state, 0xe0, 0x76);
+	cx24117_writereg(state, 0xf7, 0x81);
+	cx24117_writereg(state, 0xf8, 0x00);
+	cx24117_writereg(state, 0xf9, 0x00);
+
+	buf = kmalloc(fw->size + 1, GFP_KERNEL);
+	if (buf == NULL) {
+		state->priv->skip_fw_load = 0;
+		return -ENOMEM;
+	}
+
+	/* fw upload reg */
+	buf[0] = 0xfa;
+	memcpy(&buf[1], fw->data, fw->size);
+
+	/* prepare i2c message to send */
+	msg.addr = state->priv->demod_address;
+	msg.flags = 0;
+	msg.len = fw->size + 1;
+	msg.buf = buf;
+
+	/* send fw */
+	ret = i2c_transfer(state->priv->i2c, &msg, 1);
+	if (ret < 0)
+		return ret;
+
+	kfree(buf);
+
+	cx24117_writereg(state, 0xf7, 0x0c);
+	cx24117_writereg(state, 0xe0, 0x00);
+
+	/* CMD 1B */
+	cmd.args[0] = 0x1b;
+	cmd.args[1] = 0x00;
+	cmd.args[2] = 0x01;
+	cmd.args[3] = 0x00;
+	cmd.len = 4;
+	ret = cx24117_cmd_execute_nolock(fe, &cmd);
+	if (ret != 0)
+		goto error;
+
+	/* CMD 10 */
+	cmd.args[0] = CMD_SET_VCO;
+	cmd.args[1] = 0x06;
+	cmd.args[2] = 0x2b;
+	cmd.args[3] = 0xd8;
+	cmd.args[4] = 0xa5;
+	cmd.args[5] = 0xee;
+	cmd.args[6] = 0x03;
+	cmd.args[7] = 0x9d;
+	cmd.args[8] = 0xfc;
+	cmd.args[9] = 0x06;
+	cmd.args[10] = 0x02;
+	cmd.args[11] = 0x9d;
+	cmd.args[12] = 0xfc;
+	cmd.len = 13;
+	ret = cx24117_cmd_execute_nolock(fe, &cmd);
+	if (ret != 0)
+		goto error;
+
+	/* CMD 15 */
+	cmd.args[0] = 0x15;
+	cmd.args[1] = 0x00;
+	cmd.args[2] = 0x01;
+	cmd.args[3] = 0x00;
+	cmd.args[4] = 0x00;
+	cmd.args[5] = 0x01;
+	cmd.args[6] = 0x01;
+	cmd.args[7] = 0x01;
+	cmd.args[8] = 0x00;
+	cmd.args[9] = 0x05;
+	cmd.args[10] = 0x02;
+	cmd.args[11] = 0x02;
+	cmd.args[12] = 0x00;
+	cmd.len = 13;
+	ret = cx24117_cmd_execute_nolock(fe, &cmd);
+	if (ret != 0)
+		goto error;
+
+	/* CMD 13 */
+	cmd.args[0] = CMD_MPEGCONFIG;
+	cmd.args[1] = 0x00;
+	cmd.args[2] = 0x00;
+	cmd.args[3] = 0x00;
+	cmd.args[4] = 0x01;
+	cmd.args[5] = 0x00;
+	cmd.len = 6;
+	ret = cx24117_cmd_execute_nolock(fe, &cmd);
+	if (ret != 0)
+		goto error;
+
+	/* CMD 14 */
+	for (i = 0; i < 2; i++) {
+		cmd.args[0] = CMD_TUNERINIT;
+		cmd.args[1] = (u8) i;
+		cmd.args[2] = 0x00;
+		cmd.args[3] = 0x05;
+		cmd.args[4] = 0x00;
+		cmd.args[5] = 0x00;
+		cmd.args[6] = 0x55;
+		cmd.args[7] = 0x00;
+		cmd.len = 8;
+		ret = cx24117_cmd_execute_nolock(fe, &cmd);
+		if (ret != 0)
+			goto error;
+	}
+
+	cx24117_writereg(state, 0xce, 0xc0);
+	cx24117_writereg(state, 0xcf, 0x00);
+	cx24117_writereg(state, 0xe5, 0x04);
+
+	/* Firmware CMD 35: Get firmware version */
+	cmd.args[0] = CMD_UPDFWVERS;
+	cmd.len = 2;
+	for (i = 0; i < 4; i++) {
+		cmd.args[1] = i;
+		ret = cx24117_cmd_execute_nolock(fe, &cmd);
+		if (ret != 0)
+			goto error;
+		vers[i] = cx24117_readreg(state, 0x33);
+	}
+	dev_info(&state->priv->i2c->dev,
+		"%s: FW version %i.%i.%i.%i\n", __func__,
+		vers[0], vers[1], vers[2], vers[3]);
+	return 0;
+error:
+	state->priv->skip_fw_load = 0;
+	dev_err(&state->priv->i2c->dev, "%s() Error running FW.\n", __func__);
+	return ret;
+}
+
+static int cx24117_read_status(struct dvb_frontend *fe, fe_status_t *status)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+	int lock;
+
+	lock = cx24117_readreg(state,
+		(state->demod == 0) ? CX24117_REG_SSTATUS0 :
+				      CX24117_REG_SSTATUS1) &
+		CX24117_STATUS_MASK;
+
+	dev_dbg(&state->priv->i2c->dev, "%s() demod%d status = 0x%02x\n",
+		__func__, state->demod, lock);
+
+	*status = 0;
+
+	if (lock & CX24117_HAS_SIGNAL)
+		*status |= FE_HAS_SIGNAL;
+	if (lock & CX24117_HAS_CARRIER)
+		*status |= FE_HAS_CARRIER;
+	if (lock & CX24117_HAS_VITERBI)
+		*status |= FE_HAS_VITERBI;
+	if (lock & CX24117_HAS_SYNCLOCK)
+		*status |= FE_HAS_SYNC | FE_HAS_LOCK;
+
+	return 0;
+}
+
+static int cx24117_read_ber(struct dvb_frontend *fe, u32 *ber)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+	int ret;
+	u8 buf[4];
+	u8 base_reg = (state->demod == 0) ?
+			CX24117_REG_BER4_0 :
+			CX24117_REG_BER4_1;
+
+	ret = cx24117_readregN(state, base_reg, buf, 4);
+	if (ret != 0)
+		return ret;
+
+	*ber = (buf[0] << 24) | (buf[1] << 16) |
+		(buf[1] << 8) | buf[0];
+
+	dev_dbg(&state->priv->i2c->dev, "%s() demod%d ber=0x%04x\n",
+		__func__, state->demod, *ber);
+
+	return 0;
+}
+
+static int cx24117_read_signal_strength(struct dvb_frontend *fe,
+	u16 *signal_strength)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+	struct cx24117_cmd cmd;
+	int ret;
+	u16 sig_reading;
+	u8 buf[2];
+	u8 reg = (state->demod == 0) ?
+		CX24117_REG_SSTATUS0 : CX24117_REG_SSTATUS1;
+
+	/* Firmware CMD 1A */
+	cmd.args[0] = 0x1a;
+	cmd.args[1] = (u8) state->demod;
+	cmd.len = 2;
+	ret = cx24117_cmd_execute(fe, &cmd);
+	if (ret != 0)
+		return ret;
+
+	ret = cx24117_readregN(state, reg, buf, 2);
+	if (ret != 0)
+		return ret;
+	sig_reading = ((buf[0] & CX24117_SIGNAL_MASK) << 2) | buf[1];
+
+	*signal_strength = -100 * sig_reading + 94324;
+
+	dev_dbg(&state->priv->i2c->dev,
+		"%s() demod%d raw / cooked = 0x%04x / 0x%04x\n",
+		__func__, state->demod, sig_reading, *signal_strength);
+
+	return 0;
+}
+
+static int cx24117_read_snr(struct dvb_frontend *fe, u16 *snr)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+	int ret;
+	u8 buf[2];
+	u8 reg = (state->demod == 0) ?
+		CX24117_REG_QUALITY2_0 : CX24117_REG_QUALITY2_1;
+
+	ret = cx24117_readregN(state, reg, buf, 2);
+	if (ret != 0)
+		return ret;
+
+	*snr = (buf[0] << 8) | buf[1];
+
+	dev_dbg(&state->priv->i2c->dev,
+		"%s() demod%d snr = 0x%04x\n",
+		__func__, state->demod, *snr);
+
+	return ret;
+}
+
+static int cx24117_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+	fe_delivery_system_t delsys = fe->dtv_property_cache.delivery_system;
+	int ret;
+	u8 buf[2];
+	u8 reg = (state->demod == 0) ?
+		CX24117_REG_DVBS_UCB2_0 :
+		CX24117_REG_DVBS_UCB2_1;
+
+	switch (delsys) {
+	case SYS_DVBS:
+		break;
+	case SYS_DVBS2:
+		reg += (CX24117_REG_DVBS2_UCB2_0 - CX24117_REG_DVBS_UCB2_0);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	ret = cx24117_readregN(state, reg, buf, 2);
+	if (ret != 0)
+		return ret;
+	*ucblocks = (buf[0] << 8) | buf[1];
+
+	dev_dbg(&state->priv->i2c->dev, "%s() demod%d ucb=0x%04x\n",
+		__func__, state->demod, *ucblocks);
+
+	return 0;
+}
+
+/* Overwrite the current tuning params, we are about to tune */
+static void cx24117_clone_params(struct dvb_frontend *fe)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+	state->dcur = state->dnxt;
+}
+
+/* Wait for LNB */
+static int cx24117_wait_for_lnb(struct dvb_frontend *fe)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+	int i;
+	u8 val, reg = (state->demod == 0) ? CX24117_REG_QSTATUS0 :
+					    CX24117_REG_QSTATUS1;
+
+	dev_dbg(&state->priv->i2c->dev, "%s() demod%d qstatus = 0x%02x\n",
+		__func__, state->demod, cx24117_readreg(state, reg));
+
+	/* Wait for up to 300 ms */
+	for (i = 0; i < 10; i++) {
+		val = cx24117_readreg(state, reg) & 0x01;
+		if (val != 0)
+			return 0;
+		msleep(30);
+	}
+
+	dev_warn(&state->priv->i2c->dev, "%s: demod%d LNB not ready\n",
+		KBUILD_MODNAME, state->demod);
+
+	return -ETIMEDOUT; /* -EBUSY ? */
+}
+
+static int cx24117_set_voltage(struct dvb_frontend *fe,
+	fe_sec_voltage_t voltage)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+	struct cx24117_cmd cmd;
+	int ret;
+	u8 reg = (state->demod == 0) ? 0x10 : 0x20;
+
+	dev_dbg(&state->priv->i2c->dev, "%s() demod%d %s\n",
+		__func__, state->demod,
+		voltage == SEC_VOLTAGE_13 ? "SEC_VOLTAGE_13" :
+		voltage == SEC_VOLTAGE_18 ? "SEC_VOLTAGE_18" :
+		"SEC_VOLTAGE_OFF");
+
+	/* CMD 32 */
+	cmd.args[0] = 0x32;
+	cmd.args[1] = reg;
+	cmd.args[2] = reg;
+	cmd.len = 3;
+	ret = cx24117_cmd_execute(fe, &cmd);
+	if (ret)
+		return ret;
+
+	if ((voltage == SEC_VOLTAGE_13) ||
+	    (voltage == SEC_VOLTAGE_18)) {
+		/* CMD 33 */
+		cmd.args[0] = 0x33;
+		cmd.args[1] = reg;
+		cmd.args[2] = reg;
+		cmd.len = 3;
+		ret = cx24117_cmd_execute(fe, &cmd);
+		if (ret != 0)
+			return ret;
+
+		ret = cx24117_wait_for_lnb(fe);
+		if (ret != 0)
+			return ret;
+
+		/* Wait for voltage/min repeat delay */
+		msleep(100);
+
+		/* CMD 22 - CMD_LNBDCLEVEL */
+		cmd.args[0] = CMD_LNBDCLEVEL;
+		cmd.args[1] = state->demod ? 0 : 1;
+		cmd.args[2] = (voltage == SEC_VOLTAGE_18 ? 0x01 : 0x00);
+		cmd.len = 3;
+
+		/* Min delay time before DiSEqC send */
+		msleep(20);
+	} else {
+		cmd.args[0] = 0x33;
+		cmd.args[1] = 0x00;
+		cmd.args[2] = reg;
+		cmd.len = 3;
+	}
+
+	return cx24117_cmd_execute(fe, &cmd);
+}
+
+static int cx24117_set_tone(struct dvb_frontend *fe,
+	fe_sec_tone_mode_t tone)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+	struct cx24117_cmd cmd;
+	int ret;
+
+	dev_dbg(&state->priv->i2c->dev, "%s(%d) demod%d\n",
+		__func__, state->demod, tone);
+	if ((tone != SEC_TONE_ON) && (tone != SEC_TONE_OFF)) {
+		dev_warn(&state->priv->i2c->dev, "%s: demod%d invalid tone=%d\n",
+			KBUILD_MODNAME, state->demod, tone);
+		return -EINVAL;
+	}
+
+	/* Wait for LNB ready */
+	ret = cx24117_wait_for_lnb(fe);
+	if (ret != 0)
+		return ret;
+
+	/* Min delay time after DiSEqC send */
+	msleep(20);
+
+	/* Set the tone */
+	/* CMD 23 - CMD_SET_TONE */
+	cmd.args[0] = CMD_SET_TONE;
+	cmd.args[1] = (state->demod ? 0 : 1);
+	cmd.args[2] = 0x00;
+	cmd.args[3] = 0x00;
+	cmd.len = 5;
+	switch (tone) {
+	case SEC_TONE_ON:
+		cmd.args[4] = 0x01;
+		break;
+	case SEC_TONE_OFF:
+		cmd.args[4] = 0x00;
+		break;
+	}
+
+	msleep(20);
+
+	return cx24117_cmd_execute(fe, &cmd);
+}
+
+/* Initialise DiSEqC */
+static int cx24117_diseqc_init(struct dvb_frontend *fe)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+
+	/* Prepare a DiSEqC command */
+	state->dsec_cmd.args[0] = CMD_LNBSEND;
+
+	/* demod */
+	state->dsec_cmd.args[CX24117_DISEQC_DEMOD] = state->demod ? 0 : 1;
+
+	/* DiSEqC burst */
+	state->dsec_cmd.args[CX24117_DISEQC_BURST] = CX24117_DISEQC_MINI_A;
+
+	/* Unknown */
+	state->dsec_cmd.args[CX24117_DISEQC_ARG3_2] = 0x02;
+	state->dsec_cmd.args[CX24117_DISEQC_ARG4_0] = 0x00;
+
+	/* Continuation flag? */
+	state->dsec_cmd.args[CX24117_DISEQC_ARG5_0] = 0x00;
+
+	/* DiSEqC message length */
+	state->dsec_cmd.args[CX24117_DISEQC_MSGLEN] = 0x00;
+
+	/* Command length */
+	state->dsec_cmd.len = 7;
+
+	return 0;
+}
+
+/* Send DiSEqC message */
+static int cx24117_send_diseqc_msg(struct dvb_frontend *fe,
+	struct dvb_diseqc_master_cmd *d)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+	int i, ret;
+
+	/* Dump DiSEqC message */
+	dev_dbg(&state->priv->i2c->dev, "%s: demod %d (",
+		__func__, state->demod);
+	for (i = 0; i < d->msg_len; i++)
+		dev_dbg(&state->priv->i2c->dev, "0x%02x ", d->msg[i]);
+	dev_dbg(&state->priv->i2c->dev, ")\n");
+
+	/* Validate length */
+	if (d->msg_len > 15)
+		return -EINVAL;
+
+	/* DiSEqC message */
+	for (i = 0; i < d->msg_len; i++)
+		state->dsec_cmd.args[CX24117_DISEQC_MSGOFS + i] = d->msg[i];
+
+	/* DiSEqC message length */
+	state->dsec_cmd.args[CX24117_DISEQC_MSGLEN] = d->msg_len;
+
+	/* Command length */
+	state->dsec_cmd.len = CX24117_DISEQC_MSGOFS +
+		state->dsec_cmd.args[CX24117_DISEQC_MSGLEN];
+
+	/*
+	 * Message is sent with derived else cached burst
+	 *
+	 * WRITE PORT GROUP COMMAND 38
+	 *
+	 * 0/A/A: E0 10 38 F0..F3
+	 * 1/B/B: E0 10 38 F4..F7
+	 * 2/C/A: E0 10 38 F8..FB
+	 * 3/D/B: E0 10 38 FC..FF
+	 *
+	 * databyte[3]= 8421:8421
+	 *              ABCD:WXYZ
+	 *              CLR :SET
+	 *
+	 *              WX= PORT SELECT 0..3    (X=TONEBURST)
+	 *              Y = VOLTAGE             (0=13V, 1=18V)
+	 *              Z = BAND                (0=LOW, 1=HIGH(22K))
+	 */
+	if (d->msg_len >= 4 && d->msg[2] == 0x38)
+		state->dsec_cmd.args[CX24117_DISEQC_BURST] =
+			((d->msg[3] & 4) >> 2);
+
+	dev_dbg(&state->priv->i2c->dev, "%s() demod%d burst=%d\n",
+		__func__, state->demod,
+		state->dsec_cmd.args[CX24117_DISEQC_BURST]);
+
+	/* Wait for LNB ready */
+	ret = cx24117_wait_for_lnb(fe);
+	if (ret != 0)
+		return ret;
+
+	/* Wait for voltage/min repeat delay */
+	msleep(100);
+
+	/* Command */
+	ret = cx24117_cmd_execute(fe, &state->dsec_cmd);
+	if (ret != 0)
+		return ret;
+	/*
+	 * Wait for send
+	 *
+	 * Eutelsat spec:
+	 * >15ms delay          + (XXX determine if FW does this, see set_tone)
+	 *  13.5ms per byte     +
+	 * >15ms delay          +
+	 *  12.5ms burst        +
+	 * >15ms delay            (XXX determine if FW does this, see set_tone)
+	 */
+	msleep((state->dsec_cmd.args[CX24117_DISEQC_MSGLEN] << 4) + 60);
+
+	return 0;
+}
+
+/* Send DiSEqC burst */
+static int cx24117_diseqc_send_burst(struct dvb_frontend *fe,
+	fe_sec_mini_cmd_t burst)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+
+	dev_dbg(&state->priv->i2c->dev, "%s(%d) demod=%d\n",
+		__func__, burst, state->demod);
+
+	/* DiSEqC burst */
+	if (burst == SEC_MINI_A)
+		state->dsec_cmd.args[CX24117_DISEQC_BURST] =
+			CX24117_DISEQC_MINI_A;
+	else if (burst == SEC_MINI_B)
+		state->dsec_cmd.args[CX24117_DISEQC_BURST] =
+			CX24117_DISEQC_MINI_B;
+	else
+		return -EINVAL;
+
+	return 0;
+}
+
+static void cx24117_release(struct dvb_frontend *fe)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+	dev_dbg(&state->priv->i2c->dev, "%s demod%d\n",
+		__func__, state->demod);
+	if (!atomic_dec_and_test(&state->priv->fe_nr))
+		kfree(state->priv);
+	kfree(state);
+}
+
+static struct dvb_frontend_ops cx24117_ops;
+
+struct dvb_frontend *cx24117_attach(const struct cx24117_config *config,
+	struct i2c_adapter *i2c, struct dvb_frontend *fe)
+{
+	struct cx24117_state *state = NULL;
+	struct cx24117_priv *priv = NULL;
+	int demod = 0;
+
+	/* first frontend attaching */
+	/* allocate shared priv struct */
+	if (fe == NULL) {
+		priv = kzalloc(sizeof(struct cx24117_priv), GFP_KERNEL);
+		if (priv == NULL)
+			goto error1;
+		priv->i2c = i2c;
+		priv->demod_address = config->demod_address;
+		mutex_init(&priv->fe_lock);
+	} else {
+		demod = 1;
+		priv = ((struct cx24117_state *) fe->demodulator_priv)->priv;
+	}
+
+	/* allocate memory for the internal state */
+	state = kzalloc(sizeof(struct cx24117_state), GFP_KERNEL);
+	if (state == NULL)
+		goto error2;
+
+	state->demod = demod;
+	state->priv = priv;
+
+	/* test i2c bus for ack */
+	if (demod == 0) {
+		if (cx24117_readreg(state, 0x00) < 0)
+			goto error3;
+	}
+
+	/* nr of frontends using the module */
+	atomic_inc(&priv->fe_nr);
+
+	dev_info(&state->priv->i2c->dev,
+		"%s: Attaching frontend %d\n",
+		KBUILD_MODNAME, demod);
+
+	/* create dvb_frontend */
+	memcpy(&state->frontend.ops, &cx24117_ops,
+		sizeof(struct dvb_frontend_ops));
+	state->frontend.demodulator_priv = state;
+	return &state->frontend;
+
+error3:
+	kfree(state);
+error2:
+	kfree(priv);
+error1:
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(cx24117_attach);
+
+/*
+ * Initialise or wake up device
+ *
+ * Power config will reset and load initial firmware if required
+ */
+static int cx24117_initfe(struct dvb_frontend *fe)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+	struct cx24117_cmd cmd;
+	int ret;
+
+	dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n",
+		__func__, state->demod);
+
+	mutex_lock(&state->priv->fe_lock);
+
+	/* Firmware CMD 36: Power config */
+	cmd.args[0] = CMD_TUNERSLEEP;
+	cmd.args[1] = (state->demod ? 1 : 0);
+	cmd.args[2] = 0;
+	cmd.len = 3;
+	ret = cx24117_cmd_execute_nolock(fe, &cmd);
+	if (ret != 0)
+		return ret;
+
+	ret = cx24117_diseqc_init(fe);
+	if (ret != 0)
+		return ret;
+
+	/* CMD 3C */
+	cmd.args[0] = 0x3c;
+	cmd.args[1] = (state->demod ? 1 : 0);
+	cmd.args[2] = 0x10;
+	cmd.args[3] = 0x10;
+	cmd.len = 4;
+	ret = cx24117_cmd_execute_nolock(fe, &cmd);
+	if (ret != 0)
+		return ret;
+
+	/* CMD 34 */
+	cmd.args[0] = 0x34;
+	cmd.args[1] = (state->demod ? 1 : 0);
+	cmd.args[2] = CX24117_OCC;
+	cmd.len = 3;
+	ret = cx24117_cmd_execute_nolock(fe, &cmd);
+	if (ret != 0)
+		return ret;
+
+	mutex_unlock(&state->priv->fe_lock);
+
+	return ret;
+}
+
+/*
+ * Put device to sleep
+ */
+static int cx24117_sleep(struct dvb_frontend *fe)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+	struct cx24117_cmd cmd;
+
+	dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n",
+		__func__, state->demod);
+
+	/* Firmware CMD 36: Power config */
+	cmd.args[0] = CMD_TUNERSLEEP;
+	cmd.args[1] = (state->demod ? 1 : 0);
+	cmd.args[2] = 1;
+	cmd.len = 3;
+	return cx24117_cmd_execute(fe, &cmd);
+}
+
+/* dvb-core told us to tune, the tv property cache will be complete,
+ * it's safe for is to pull values and use them for tuning purposes.
+ */
+static int cx24117_set_frontend(struct dvb_frontend *fe)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	struct cx24117_cmd cmd;
+	fe_status_t tunerstat;
+	int i, status, ret, retune = 1;
+	u8 reg_clkdiv, reg_ratediv;
+
+	dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n",
+		__func__, state->demod);
+
+	switch (c->delivery_system) {
+	case SYS_DVBS:
+		dev_dbg(&state->priv->i2c->dev, "%s() demod%d DVB-S\n",
+			__func__, state->demod);
+
+		/* Only QPSK is supported for DVB-S */
+		if (c->modulation != QPSK) {
+			dev_dbg(&state->priv->i2c->dev,
+				"%s() demod%d unsupported modulation (%d)\n",
+				__func__, state->demod, c->modulation);
+			return -EINVAL;
+		}
+
+		/* Pilot doesn't exist in DVB-S, turn bit off */
+		state->dnxt.pilot_val = CX24117_PILOT_OFF;
+
+		/* DVB-S only supports 0.35 */
+		state->dnxt.rolloff_val = CX24117_ROLLOFF_035;
+		break;
+
+	case SYS_DVBS2:
+		dev_dbg(&state->priv->i2c->dev, "%s() demod%d DVB-S2\n",
+			__func__, state->demod);
+
+		/*
+		 * NBC 8PSK/QPSK with DVB-S is supported for DVB-S2,
+		 * but not hardware auto detection
+		 */
+		if (c->modulation != PSK_8 && c->modulation != QPSK) {
+			dev_dbg(&state->priv->i2c->dev,
+				"%s() demod%d unsupported modulation (%d)\n",
+				__func__, state->demod, c->modulation);
+			return -EOPNOTSUPP;
+		}
+
+		switch (c->pilot) {
+		case PILOT_AUTO:
+			state->dnxt.pilot_val = CX24117_PILOT_AUTO;
+			break;
+		case PILOT_OFF:
+			state->dnxt.pilot_val = CX24117_PILOT_OFF;
+			break;
+		case PILOT_ON:
+			state->dnxt.pilot_val = CX24117_PILOT_ON;
+			break;
+		default:
+			dev_dbg(&state->priv->i2c->dev,
+				"%s() demod%d unsupported pilot mode (%d)\n",
+				__func__, state->demod, c->pilot);
+			return -EOPNOTSUPP;
+		}
+
+		switch (c->rolloff) {
+		case ROLLOFF_20:
+			state->dnxt.rolloff_val = CX24117_ROLLOFF_020;
+			break;
+		case ROLLOFF_25:
+			state->dnxt.rolloff_val = CX24117_ROLLOFF_025;
+			break;
+		case ROLLOFF_35:
+			state->dnxt.rolloff_val = CX24117_ROLLOFF_035;
+			break;
+		case ROLLOFF_AUTO:
+			state->dnxt.rolloff_val = CX24117_ROLLOFF_035;
+			/* soft-auto rolloff */
+			retune = 3;
+			break;
+		default:
+			dev_warn(&state->priv->i2c->dev,
+				"%s: demod%d unsupported rolloff (%d)\n",
+				KBUILD_MODNAME, state->demod, c->rolloff);
+			return -EOPNOTSUPP;
+		}
+		break;
+
+	default:
+		dev_warn(&state->priv->i2c->dev,
+			"%s: demod %d unsupported delivery system (%d)\n",
+			KBUILD_MODNAME, state->demod, c->delivery_system);
+		return -EINVAL;
+	}
+
+	state->dnxt.delsys = c->delivery_system;
+	state->dnxt.modulation = c->modulation;
+	state->dnxt.frequency = c->frequency;
+	state->dnxt.pilot = c->pilot;
+	state->dnxt.rolloff = c->rolloff;
+
+	ret = cx24117_set_inversion(state, c->inversion);
+	if (ret !=  0)
+		return ret;
+
+	ret = cx24117_set_fec(state,
+		c->delivery_system, c->modulation, c->fec_inner);
+	if (ret !=  0)
+		return ret;
+
+	ret = cx24117_set_symbolrate(state, c->symbol_rate);
+	if (ret !=  0)
+		return ret;
+
+	/* discard the 'current' tuning parameters and prepare to tune */
+	cx24117_clone_params(fe);
+
+	dev_dbg(&state->priv->i2c->dev,
+		"%s: delsys      = %d\n", __func__, state->dcur.delsys);
+	dev_dbg(&state->priv->i2c->dev,
+		"%s: modulation  = %d\n", __func__, state->dcur.modulation);
+	dev_dbg(&state->priv->i2c->dev,
+		"%s: frequency   = %d\n", __func__, state->dcur.frequency);
+	dev_dbg(&state->priv->i2c->dev,
+		"%s: pilot       = %d (val = 0x%02x)\n", __func__,
+		state->dcur.pilot, state->dcur.pilot_val);
+	dev_dbg(&state->priv->i2c->dev,
+		"%s: retune      = %d\n", __func__, retune);
+	dev_dbg(&state->priv->i2c->dev,
+		"%s: rolloff     = %d (val = 0x%02x)\n", __func__,
+		state->dcur.rolloff, state->dcur.rolloff_val);
+	dev_dbg(&state->priv->i2c->dev,
+		"%s: symbol_rate = %d\n", __func__, state->dcur.symbol_rate);
+	dev_dbg(&state->priv->i2c->dev,
+		"%s: FEC         = %d (mask/val = 0x%02x/0x%02x)\n", __func__,
+		state->dcur.fec, state->dcur.fec_mask, state->dcur.fec_val);
+	dev_dbg(&state->priv->i2c->dev,
+		"%s: Inversion   = %d (val = 0x%02x)\n", __func__,
+		state->dcur.inversion, state->dcur.inversion_val);
+
+	/* Prepare a tune request */
+	cmd.args[0] = CMD_TUNEREQUEST;
+
+	/* demod */
+	cmd.args[1] = state->demod;
+
+	/* Frequency */
+	cmd.args[2] = (state->dcur.frequency & 0xff0000) >> 16;
+	cmd.args[3] = (state->dcur.frequency & 0x00ff00) >> 8;
+	cmd.args[4] = (state->dcur.frequency & 0x0000ff);
+
+	/* Symbol Rate */
+	cmd.args[5] = ((state->dcur.symbol_rate / 1000) & 0xff00) >> 8;
+	cmd.args[6] = ((state->dcur.symbol_rate / 1000) & 0x00ff);
+
+	/* Automatic Inversion */
+	cmd.args[7] = state->dcur.inversion_val;
+
+	/* Modulation / FEC / Pilot */
+	cmd.args[8] = state->dcur.fec_val | state->dcur.pilot_val;
+
+	cmd.args[9] = CX24117_SEARCH_RANGE_KHZ >> 8;
+	cmd.args[10] = CX24117_SEARCH_RANGE_KHZ & 0xff;
+
+	cmd.args[11] = state->dcur.rolloff_val;
+	cmd.args[12] = state->dcur.fec_mask;
+
+	if (state->dcur.symbol_rate > 30000000) {
+		reg_ratediv = 0x04;
+		reg_clkdiv = 0x02;
+	} else if (state->dcur.symbol_rate > 10000000) {
+		reg_ratediv = 0x06;
+		reg_clkdiv = 0x03;
+	} else {
+		reg_ratediv = 0x0a;
+		reg_clkdiv = 0x05;
+	}
+
+	cmd.args[13] = reg_ratediv;
+	cmd.args[14] = reg_clkdiv;
+
+	cx24117_writereg(state, (state->demod == 0) ?
+		CX24117_REG_CLKDIV0 : CX24117_REG_CLKDIV1, reg_clkdiv);
+	cx24117_writereg(state, (state->demod == 0) ?
+		CX24117_REG_RATEDIV0 : CX24117_REG_RATEDIV1, reg_ratediv);
+
+	cmd.args[15] = CX24117_PNE;
+	cmd.len = 16;
+
+	do {
+		/* Reset status register */
+		status = cx24117_readreg(state, (state->demod == 0) ?
+			CX24117_REG_SSTATUS0 : CX24117_REG_SSTATUS1) &
+			CX24117_SIGNAL_MASK;
+
+		dev_dbg(&state->priv->i2c->dev,
+			"%s() demod%d status_setfe = %02x\n",
+			__func__, state->demod, status);
+
+		cx24117_writereg(state, (state->demod == 0) ?
+			CX24117_REG_SSTATUS0 : CX24117_REG_SSTATUS1, status);
+
+		/* Tune */
+		ret = cx24117_cmd_execute(fe, &cmd);
+		if (ret != 0)
+			break;
+
+		/*
+		 * Wait for up to 500 ms before retrying
+		 *
+		 * If we are able to tune then generally it occurs within 100ms.
+		 * If it takes longer, try a different rolloff setting.
+		 */
+		for (i = 0; i < 50; i++) {
+			cx24117_read_status(fe, &tunerstat);
+			status = tunerstat & (FE_HAS_SIGNAL | FE_HAS_SYNC);
+			if (status == (FE_HAS_SIGNAL | FE_HAS_SYNC)) {
+				dev_dbg(&state->priv->i2c->dev,
+					"%s() demod%d tuned\n",
+					__func__, state->demod);
+				return 0;
+			}
+			msleep(20);
+		}
+
+		dev_dbg(&state->priv->i2c->dev, "%s() demod%d not tuned\n",
+			__func__, state->demod);
+
+		/* try next rolloff value */
+		if (state->dcur.rolloff == 3)
+			cmd.args[11]--;
+
+	} while (--retune);
+	return -EINVAL;
+}
+
+static int cx24117_tune(struct dvb_frontend *fe, bool re_tune,
+	unsigned int mode_flags, unsigned int *delay, fe_status_t *status)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+
+	dev_dbg(&state->priv->i2c->dev, "%s() demod%d\n",
+		__func__, state->demod);
+
+	*delay = HZ / 5;
+	if (re_tune) {
+		int ret = cx24117_set_frontend(fe);
+		if (ret)
+			return ret;
+	}
+	return cx24117_read_status(fe, status);
+}
+
+static int cx24117_get_algo(struct dvb_frontend *fe)
+{
+	return DVBFE_ALGO_HW;
+}
+
+static int cx24117_get_frontend(struct dvb_frontend *fe)
+{
+	struct cx24117_state *state = fe->demodulator_priv;
+	struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+	struct cx24117_cmd cmd;
+	u8 reg, st, inv;
+	int ret, idx;
+	unsigned int freq;
+	short srate_os, freq_os;
+
+	u8 buf[0x1f-4];
+
+	cmd.args[0] = 0x1c;
+	cmd.args[1] = (u8) state->demod;
+	cmd.len = 2;
+	ret = cx24117_cmd_execute(fe, &cmd);
+	if (ret != 0)
+		return ret;
+
+	/* read all required regs at once */
+	reg = (state->demod == 0) ? CX24117_REG_FREQ3_0 : CX24117_REG_FREQ3_1;
+	ret = cx24117_readregN(state, reg, buf, 0x1f-4);
+	if (ret != 0)
+		return ret;
+
+	st = buf[5];
+
+	/* get spectral inversion */
+	inv = (((state->demod == 0) ? ~st : st) >> 6) & 1;
+	if (inv == 0)
+		c->inversion = INVERSION_OFF;
+	else
+		c->inversion = INVERSION_ON;
+
+	/* modulation and fec */
+	idx = st & 0x3f;
+	if (c->delivery_system == SYS_DVBS2) {
+		if (idx > 11)
+			idx += 9;
+		else
+			idx += 7;
+	}
+
+	c->modulation = cx24117_modfec_modes[idx].modulation;
+	c->fec_inner = cx24117_modfec_modes[idx].fec;
+
+	/* frequency */
+	freq = (buf[0] << 16) | (buf[1] << 8) | buf[2];
+	freq_os = (buf[8] << 8) | buf[9];
+	c->frequency = freq + freq_os;
+
+	/* symbol rate */
+	srate_os = (buf[10] << 8) | buf[11];
+	c->symbol_rate = -1000 * srate_os + state->dcur.symbol_rate;
+	return 0;
+}
+
+static struct dvb_frontend_ops cx24117_ops = {
+	.delsys = { SYS_DVBS, SYS_DVBS2 },
+	.info = {
+		.name = "Conexant CX24117/CX24132",
+		.frequency_min = 950000,
+		.frequency_max = 2150000,
+		.frequency_stepsize = 1011, /* kHz for QPSK frontends */
+		.frequency_tolerance = 5000,
+		.symbol_rate_min = 1000000,
+		.symbol_rate_max = 45000000,
+		.caps = FE_CAN_INVERSION_AUTO |
+			FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
+			FE_CAN_FEC_4_5 | FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 |
+			FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
+			FE_CAN_2G_MODULATION |
+			FE_CAN_QPSK | FE_CAN_RECOVER
+	},
+
+	.release = cx24117_release,
+
+	.init = cx24117_initfe,
+	.sleep = cx24117_sleep,
+	.read_status = cx24117_read_status,
+	.read_ber = cx24117_read_ber,
+	.read_signal_strength = cx24117_read_signal_strength,
+	.read_snr = cx24117_read_snr,
+	.read_ucblocks = cx24117_read_ucblocks,
+	.set_tone = cx24117_set_tone,
+	.set_voltage = cx24117_set_voltage,
+	.diseqc_send_master_cmd = cx24117_send_diseqc_msg,
+	.diseqc_send_burst = cx24117_diseqc_send_burst,
+	.get_frontend_algo = cx24117_get_algo,
+	.tune = cx24117_tune,
+
+	.set_frontend = cx24117_set_frontend,
+	.get_frontend = cx24117_get_frontend,
+};
+
+
+MODULE_DESCRIPTION("DVB Frontend module for Conexant cx24117/cx24132 hardware");
+MODULE_AUTHOR("Luis Alves (ljalvs@gmail.com)");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("1.1");
+MODULE_FIRMWARE(CX24117_DEFAULT_FIRMWARE);
+
diff --git a/drivers/media/dvb-frontends/cx24117.h b/drivers/media/dvb-frontends/cx24117.h
new file mode 100644
index 000000000000..5bc8f1119275
--- /dev/null
+++ b/drivers/media/dvb-frontends/cx24117.h
@@ -0,0 +1,47 @@
+/*
+    Conexant cx24117/cx24132 - Dual DVBS/S2 Satellite demod/tuner driver
+
+    Copyright (C) 2013 Luis Alves <ljalvs@gmail.com>
+	(based on cx24116.h by Steven Toth)
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifndef CX24117_H
+#define CX24117_H
+
+#include <linux/kconfig.h>
+#include <linux/dvb/frontend.h>
+
+struct cx24117_config {
+	/* the demodulator's i2c address */
+	u8 demod_address;
+};
+
+#if IS_ENABLED(CONFIG_DVB_CX24117)
+extern struct dvb_frontend *cx24117_attach(
+	const struct cx24117_config *config,
+	struct i2c_adapter *i2c, struct dvb_frontend *fe);
+#else
+static inline struct dvb_frontend *cx24117_attach(
+	const struct cx24117_config *config,
+	struct i2c_adapter *i2c, struct dvb_frontend *fe)
+{
+	dev_warn(&i2c->dev, "%s: driver disabled by Kconfig\n", __func__);
+	return NULL;
+}
+#endif
+
+#endif /* CX24117_H */
-- 
cgit 


From e6001482d49ffe1554f55c47a4ed903e86fe69a5 Mon Sep 17 00:00:00 2001
From: Luis Alves <ljalvs@gmail.com>
Date: Tue, 1 Oct 2013 22:11:35 -0300
Subject: [media] cx23885: add support for cx24117 with tbs6980 or tbs6981

Signed-off-by: Luis Alves <ljalvs@gmail.com>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/cx23885/Kconfig         |  1 +
 drivers/media/pci/cx23885/cx23885-cards.c | 67 +++++++++++++++++++++++++++++++
 drivers/media/pci/cx23885/cx23885-dvb.c   | 31 ++++++++++++++
 drivers/media/pci/cx23885/cx23885-input.c | 12 ++++++
 drivers/media/pci/cx23885/cx23885.h       |  2 +
 5 files changed, 113 insertions(+)

diff --git a/drivers/media/pci/cx23885/Kconfig b/drivers/media/pci/cx23885/Kconfig
index 5104c802f72f..d1dcb1d2e087 100644
--- a/drivers/media/pci/cx23885/Kconfig
+++ b/drivers/media/pci/cx23885/Kconfig
@@ -23,6 +23,7 @@ config VIDEO_CX23885
 	select DVB_STB6100 if MEDIA_SUBDRV_AUTOSELECT
 	select DVB_STV6110 if MEDIA_SUBDRV_AUTOSELECT
 	select DVB_CX24116 if MEDIA_SUBDRV_AUTOSELECT
+	select DVB_CX24117 if MEDIA_SUBDRV_AUTOSELECT
 	select DVB_STV0900 if MEDIA_SUBDRV_AUTOSELECT
 	select DVB_DS3000 if MEDIA_SUBDRV_AUTOSELECT
 	select DVB_TS2020 if MEDIA_SUBDRV_AUTOSELECT
diff --git a/drivers/media/pci/cx23885/cx23885-cards.c b/drivers/media/pci/cx23885/cx23885-cards.c
index 6a71a965e757..b3ae43da2598 100644
--- a/drivers/media/pci/cx23885/cx23885-cards.c
+++ b/drivers/media/pci/cx23885/cx23885-cards.c
@@ -259,6 +259,16 @@ struct cx23885_board cx23885_boards[] = {
 		.name		= "TurboSight TBS 6920",
 		.portb		= CX23885_MPEG_DVB,
 	},
+	[CX23885_BOARD_TBS_6980] = {
+		.name		= "TurboSight TBS 6980",
+		.portb		= CX23885_MPEG_DVB,
+		.portc		= CX23885_MPEG_DVB,
+	},
+	[CX23885_BOARD_TBS_6981] = {
+		.name		= "TurboSight TBS 6981",
+		.portb		= CX23885_MPEG_DVB,
+		.portc		= CX23885_MPEG_DVB,
+	},
 	[CX23885_BOARD_TEVII_S470] = {
 		.name		= "TeVii S470",
 		.portb		= CX23885_MPEG_DVB,
@@ -698,6 +708,14 @@ struct cx23885_subid cx23885_subids[] = {
 		.subvendor = 0x6920,
 		.subdevice = 0x8888,
 		.card      = CX23885_BOARD_TBS_6920,
+	}, {
+		.subvendor = 0x6980,
+		.subdevice = 0x8888,
+		.card      = CX23885_BOARD_TBS_6980,
+	}, {
+		.subvendor = 0x6981,
+		.subdevice = 0x8888,
+		.card      = CX23885_BOARD_TBS_6981,
 	}, {
 		.subvendor = 0xd470,
 		.subdevice = 0x9022,
@@ -1023,6 +1041,35 @@ static void hauppauge_eeprom(struct cx23885_dev *dev, u8 *eeprom_data)
 			dev->name, tv.model);
 }
 
+/* Some TBS cards require initing a chip using a bitbanged SPI attached
+   to the cx23885 gpio's. If this chip doesn't get init'ed the demod
+   doesn't respond to any command. */
+static void tbs_card_init(struct cx23885_dev *dev)
+{
+	int i;
+	const u8 buf[] = {
+		0xe0, 0x06, 0x66, 0x33, 0x65,
+		0x01, 0x17, 0x06, 0xde};
+
+	switch (dev->board) {
+	case CX23885_BOARD_TBS_6980:
+	case CX23885_BOARD_TBS_6981:
+		cx_set(GP0_IO, 0x00070007);
+		usleep_range(1000, 10000);
+		cx_clear(GP0_IO, 2);
+		usleep_range(1000, 10000);
+		for (i = 0; i < 9 * 8; i++) {
+			cx_clear(GP0_IO, 7);
+			usleep_range(1000, 10000);
+			cx_set(GP0_IO,
+				((buf[i >> 3] >> (7 - (i & 7))) & 1) | 4);
+			usleep_range(1000, 10000);
+		}
+		cx_set(GP0_IO, 7);
+		break;
+	}
+}
+
 int cx23885_tuner_callback(void *priv, int component, int command, int arg)
 {
 	struct cx23885_tsport *port = priv;
@@ -1225,6 +1272,8 @@ void cx23885_gpio_setup(struct cx23885_dev *dev)
 		cx_set(GP0_IO, 0x00040004);
 		break;
 	case CX23885_BOARD_TBS_6920:
+	case CX23885_BOARD_TBS_6980:
+	case CX23885_BOARD_TBS_6981:
 	case CX23885_BOARD_PROF_8000:
 		cx_write(MC417_CTL, 0x00000036);
 		cx_write(MC417_OEN, 0x00001000);
@@ -1473,6 +1522,8 @@ int cx23885_ir_init(struct cx23885_dev *dev)
 	case CX23885_BOARD_TERRATEC_CINERGY_T_PCIE_DUAL:
 	case CX23885_BOARD_TEVII_S470:
 	case CX23885_BOARD_MYGICA_X8507:
+	case CX23885_BOARD_TBS_6980:
+	case CX23885_BOARD_TBS_6981:
 		if (!enable_885_ir)
 			break;
 		dev->sd_ir = cx23885_find_hw(dev, CX23885_HW_AV_CORE);
@@ -1516,6 +1567,8 @@ void cx23885_ir_fini(struct cx23885_dev *dev)
 	case CX23885_BOARD_TEVII_S470:
 	case CX23885_BOARD_HAUPPAUGE_HVR1250:
 	case CX23885_BOARD_MYGICA_X8507:
+	case CX23885_BOARD_TBS_6980:
+	case CX23885_BOARD_TBS_6981:
 		cx23885_irq_remove(dev, PCI_MSK_AV_CORE);
 		/* sd_ir is a duplicate pointer to the AV Core, just clear it */
 		dev->sd_ir = NULL;
@@ -1561,6 +1614,8 @@ void cx23885_ir_pci_int_enable(struct cx23885_dev *dev)
 	case CX23885_BOARD_TEVII_S470:
 	case CX23885_BOARD_HAUPPAUGE_HVR1250:
 	case CX23885_BOARD_MYGICA_X8507:
+	case CX23885_BOARD_TBS_6980:
+	case CX23885_BOARD_TBS_6981:
 		if (dev->sd_ir)
 			cx23885_irq_add_enable(dev, PCI_MSK_AV_CORE);
 		break;
@@ -1676,6 +1731,16 @@ void cx23885_card_setup(struct cx23885_dev *dev)
 		ts2->ts_clk_en_val = 0x1; /* Enable TS_CLK */
 		ts2->src_sel_val   = CX23885_SRC_SEL_PARALLEL_MPEG_VIDEO;
 		break;
+	case CX23885_BOARD_TBS_6980:
+	case CX23885_BOARD_TBS_6981:
+		ts1->gen_ctrl_val  = 0xc; /* Serial bus + punctured clock */
+		ts1->ts_clk_en_val = 0x1; /* Enable TS_CLK */
+		ts1->src_sel_val   = CX23885_SRC_SEL_PARALLEL_MPEG_VIDEO;
+		ts2->gen_ctrl_val  = 0xc; /* Serial bus + punctured clock */
+		ts2->ts_clk_en_val = 0x1; /* Enable TS_CLK */
+		ts2->src_sel_val   = CX23885_SRC_SEL_PARALLEL_MPEG_VIDEO;
+		tbs_card_init(dev);
+		break;
 	case CX23885_BOARD_MYGICA_X8506:
 	case CX23885_BOARD_MAGICPRO_PROHDTVE2:
 	case CX23885_BOARD_MYGICA_X8507:
@@ -1752,6 +1817,8 @@ void cx23885_card_setup(struct cx23885_dev *dev)
 	case CX23885_BOARD_MYGICA_X8507:
 	case CX23885_BOARD_TERRATEC_CINERGY_T_PCIE_DUAL:
 	case CX23885_BOARD_AVERMEDIA_HC81R:
+	case CX23885_BOARD_TBS_6980:
+	case CX23885_BOARD_TBS_6981:
 		dev->sd_cx25840 = v4l2_i2c_new_subdev(&dev->v4l2_dev,
 				&dev->i2c_bus[2].i2c_adap,
 				"cx25840", 0x88 >> 1, NULL);
diff --git a/drivers/media/pci/cx23885/cx23885-dvb.c b/drivers/media/pci/cx23885/cx23885-dvb.c
index 971e4ff1b87f..34120db1f51f 100644
--- a/drivers/media/pci/cx23885/cx23885-dvb.c
+++ b/drivers/media/pci/cx23885/cx23885-dvb.c
@@ -51,6 +51,7 @@
 #include "stv6110.h"
 #include "lnbh24.h"
 #include "cx24116.h"
+#include "cx24117.h"
 #include "cimax2.h"
 #include "lgs8gxx.h"
 #include "netup-eeprom.h"
@@ -461,6 +462,10 @@ static struct cx24116_config tbs_cx24116_config = {
 	.demod_address = 0x55,
 };
 
+static struct cx24117_config tbs_cx24117_config = {
+	.demod_address = 0x55,
+};
+
 static struct ds3000_config tevii_ds3000_config = {
 	.demod_address = 0x68,
 };
@@ -1044,6 +1049,32 @@ static int dvb_register(struct cx23885_tsport *port)
 			fe0->dvb.frontend->ops.set_voltage = f300_set_voltage;
 
 		break;
+	case CX23885_BOARD_TBS_6980:
+	case CX23885_BOARD_TBS_6981:
+		i2c_bus = &dev->i2c_bus[1];
+
+		switch (port->nr) {
+		/* PORT B */
+		case 1:
+			fe0->dvb.frontend = dvb_attach(cx24117_attach,
+					&tbs_cx24117_config,
+					&i2c_bus->i2c_adap, NULL);
+			break;
+		/* PORT C */
+		case 2:
+			/* use fe1 pointer as temporary holder */
+			/* for the first frontend */
+			fe1 = videobuf_dvb_get_frontend(
+				&port->dev->ts1.frontends, 1);
+
+			fe0->dvb.frontend = dvb_attach(cx24117_attach,
+					&tbs_cx24117_config,
+					&i2c_bus->i2c_adap, fe1->dvb.frontend);
+			/* we're done, so clear fe1 pointer */
+			fe1 = NULL;
+			break;
+		}
+		break;
 	case CX23885_BOARD_TEVII_S470:
 		i2c_bus = &dev->i2c_bus[1];
 
diff --git a/drivers/media/pci/cx23885/cx23885-input.c b/drivers/media/pci/cx23885/cx23885-input.c
index 7875dfbe09ff..8a49e7c9eddd 100644
--- a/drivers/media/pci/cx23885/cx23885-input.c
+++ b/drivers/media/pci/cx23885/cx23885-input.c
@@ -90,6 +90,8 @@ void cx23885_input_rx_work_handler(struct cx23885_dev *dev, u32 events)
 	case CX23885_BOARD_TEVII_S470:
 	case CX23885_BOARD_HAUPPAUGE_HVR1250:
 	case CX23885_BOARD_MYGICA_X8507:
+	case CX23885_BOARD_TBS_6980:
+	case CX23885_BOARD_TBS_6981:
 		/*
 		 * The only boards we handle right now.  However other boards
 		 * using the CX2388x integrated IR controller should be similar
@@ -168,6 +170,8 @@ static int cx23885_input_ir_start(struct cx23885_dev *dev)
 		break;
 	case CX23885_BOARD_TERRATEC_CINERGY_T_PCIE_DUAL:
 	case CX23885_BOARD_TEVII_S470:
+	case CX23885_BOARD_TBS_6980:
+	case CX23885_BOARD_TBS_6981:
 		/*
 		 * The IR controller on this board only returns pulse widths.
 		 * Any other mode setting will fail to set up the device.
@@ -298,6 +302,14 @@ int cx23885_input_init(struct cx23885_dev *dev)
 		/* A guess at the remote */
 		rc_map = RC_MAP_TOTAL_MEDIA_IN_HAND_02;
 		break;
+	case CX23885_BOARD_TBS_6980:
+	case CX23885_BOARD_TBS_6981:
+		/* Integrated CX23885 IR controller */
+		driver_type = RC_DRIVER_IR_RAW;
+		allowed_protos = RC_BIT_ALL;
+		/* A guess at the remote */
+		rc_map = RC_MAP_TBS_NEC;
+		break;
 	default:
 		return -ENODEV;
 	}
diff --git a/drivers/media/pci/cx23885/cx23885.h b/drivers/media/pci/cx23885/cx23885.h
index 038caf53908b..2eb23d87c752 100644
--- a/drivers/media/pci/cx23885/cx23885.h
+++ b/drivers/media/pci/cx23885/cx23885.h
@@ -93,6 +93,8 @@
 #define CX23885_BOARD_PROF_8000                37
 #define CX23885_BOARD_HAUPPAUGE_HVR4400        38
 #define CX23885_BOARD_AVERMEDIA_HC81R          39
+#define CX23885_BOARD_TBS_6981                 40
+#define CX23885_BOARD_TBS_6980                 41
 
 #define GPIO_0 0x00000001
 #define GPIO_1 0x00000002
-- 
cgit 


From d10e8280c4c2513d3e7350c27d8e6f0fa03a5f71 Mon Sep 17 00:00:00 2001
From: Luis Alves <ljalvs@gmail.com>
Date: Thu, 3 Oct 2013 08:33:47 -0300
Subject: [media] cx24117: use hybrid_tuner_request/release_state to share
 state between multiple instances

...and remove the frontend pointer param from cx24117_attach()

Signed-off-by: Luis Alves <ljalvs@gmail.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/dvb-frontends/cx24117.c   | 72 +++++++++++++++++++++++----------
 drivers/media/dvb-frontends/cx24117.h   |  4 +-
 drivers/media/pci/cx23885/cx23885-dvb.c | 11 +----
 3 files changed, 55 insertions(+), 32 deletions(-)

diff --git a/drivers/media/dvb-frontends/cx24117.c b/drivers/media/dvb-frontends/cx24117.c
index 3b6391352918..908730959e38 100644
--- a/drivers/media/dvb-frontends/cx24117.c
+++ b/drivers/media/dvb-frontends/cx24117.c
@@ -31,6 +31,7 @@
 #include <linux/init.h>
 #include <linux/firmware.h>
 
+#include "tuner-i2c.h"
 #include "dvb_frontend.h"
 #include "cx24117.h"
 
@@ -145,6 +146,9 @@ enum cmds {
 	CMD_TUNERSLEEP  = 0x36,
 };
 
+static LIST_HEAD(hybrid_tuner_instance_list);
+static DEFINE_MUTEX(cx24117_list_mutex);
+
 /* The Demod/Tuner can't easily provide these, we cache them */
 struct cx24117_tuning {
 	u32 frequency;
@@ -176,9 +180,11 @@ struct cx24117_priv {
 	u8 demod_address;
 	struct i2c_adapter *i2c;
 	u8 skip_fw_load;
-
 	struct mutex fe_lock;
-	atomic_t fe_nr;
+
+	/* Used for sharing this struct between demods */
+	struct tuner_i2c_props i2c_props;
+	struct list_head hybrid_tuner_instance_list;
 };
 
 /* one per each fe */
@@ -536,7 +542,7 @@ static int cx24117_load_firmware(struct dvb_frontend *fe,
 	dev_dbg(&state->priv->i2c->dev,
 		"%s() demod%d FW is %zu bytes (%02x %02x .. %02x %02x)\n",
 		__func__, state->demod, fw->size, fw->data[0], fw->data[1],
-		fw->data[fw->size-2], fw->data[fw->size-1]);
+		fw->data[fw->size - 2], fw->data[fw->size - 1]);
 
 	cx24117_writereg(state, 0xea, 0x00);
 	cx24117_writereg(state, 0xea, 0x01);
@@ -1116,37 +1122,64 @@ static int cx24117_diseqc_send_burst(struct dvb_frontend *fe,
 	return 0;
 }
 
+static int cx24117_get_priv(struct cx24117_priv **priv,
+	struct i2c_adapter *i2c, u8 client_address)
+{
+	int ret;
+
+	mutex_lock(&cx24117_list_mutex);
+	ret = hybrid_tuner_request_state(struct cx24117_priv, (*priv),
+		hybrid_tuner_instance_list, i2c, client_address, "cx24117");
+	mutex_unlock(&cx24117_list_mutex);
+
+	return ret;
+}
+
+static void cx24117_release_priv(struct cx24117_priv *priv)
+{
+	mutex_lock(&cx24117_list_mutex);
+	if (priv != NULL)
+		hybrid_tuner_release_state(priv);
+	mutex_unlock(&cx24117_list_mutex);
+}
+
 static void cx24117_release(struct dvb_frontend *fe)
 {
 	struct cx24117_state *state = fe->demodulator_priv;
 	dev_dbg(&state->priv->i2c->dev, "%s demod%d\n",
 		__func__, state->demod);
-	if (!atomic_dec_and_test(&state->priv->fe_nr))
-		kfree(state->priv);
+	cx24117_release_priv(state->priv);
 	kfree(state);
 }
 
 static struct dvb_frontend_ops cx24117_ops;
 
 struct dvb_frontend *cx24117_attach(const struct cx24117_config *config,
-	struct i2c_adapter *i2c, struct dvb_frontend *fe)
+	struct i2c_adapter *i2c)
 {
 	struct cx24117_state *state = NULL;
 	struct cx24117_priv *priv = NULL;
 	int demod = 0;
 
-	/* first frontend attaching */
-	/* allocate shared priv struct */
-	if (fe == NULL) {
-		priv = kzalloc(sizeof(struct cx24117_priv), GFP_KERNEL);
-		if (priv == NULL)
-			goto error1;
+	/* get the common data struct for both demods */
+	demod = cx24117_get_priv(&priv, i2c, config->demod_address);
+
+	switch (demod) {
+	case 0:
+		dev_err(&state->priv->i2c->dev,
+			"%s: Error attaching frontend %d\n",
+			KBUILD_MODNAME, demod);
+		goto error1;
+		break;
+	case 1:
+		/* new priv instance */
 		priv->i2c = i2c;
 		priv->demod_address = config->demod_address;
 		mutex_init(&priv->fe_lock);
-	} else {
-		demod = 1;
-		priv = ((struct cx24117_state *) fe->demodulator_priv)->priv;
+		break;
+	default:
+		/* existing priv instance */
+		break;
 	}
 
 	/* allocate memory for the internal state */
@@ -1154,7 +1187,7 @@ struct dvb_frontend *cx24117_attach(const struct cx24117_config *config,
 	if (state == NULL)
 		goto error2;
 
-	state->demod = demod;
+	state->demod = demod - 1;
 	state->priv = priv;
 
 	/* test i2c bus for ack */
@@ -1163,12 +1196,9 @@ struct dvb_frontend *cx24117_attach(const struct cx24117_config *config,
 			goto error3;
 	}
 
-	/* nr of frontends using the module */
-	atomic_inc(&priv->fe_nr);
-
 	dev_info(&state->priv->i2c->dev,
 		"%s: Attaching frontend %d\n",
-		KBUILD_MODNAME, demod);
+		KBUILD_MODNAME, state->demod);
 
 	/* create dvb_frontend */
 	memcpy(&state->frontend.ops, &cx24117_ops,
@@ -1179,7 +1209,7 @@ struct dvb_frontend *cx24117_attach(const struct cx24117_config *config,
 error3:
 	kfree(state);
 error2:
-	kfree(priv);
+	cx24117_release_priv(priv);
 error1:
 	return NULL;
 }
diff --git a/drivers/media/dvb-frontends/cx24117.h b/drivers/media/dvb-frontends/cx24117.h
index 5bc8f1119275..4e59e9574fa7 100644
--- a/drivers/media/dvb-frontends/cx24117.h
+++ b/drivers/media/dvb-frontends/cx24117.h
@@ -33,11 +33,11 @@ struct cx24117_config {
 #if IS_ENABLED(CONFIG_DVB_CX24117)
 extern struct dvb_frontend *cx24117_attach(
 	const struct cx24117_config *config,
-	struct i2c_adapter *i2c, struct dvb_frontend *fe);
+	struct i2c_adapter *i2c);
 #else
 static inline struct dvb_frontend *cx24117_attach(
 	const struct cx24117_config *config,
-	struct i2c_adapter *i2c, struct dvb_frontend *fe)
+	struct i2c_adapter *i2c)
 {
 	dev_warn(&i2c->dev, "%s: driver disabled by Kconfig\n", __func__);
 	return NULL;
diff --git a/drivers/media/pci/cx23885/cx23885-dvb.c b/drivers/media/pci/cx23885/cx23885-dvb.c
index 34120db1f51f..05492053b473 100644
--- a/drivers/media/pci/cx23885/cx23885-dvb.c
+++ b/drivers/media/pci/cx23885/cx23885-dvb.c
@@ -1058,20 +1058,13 @@ static int dvb_register(struct cx23885_tsport *port)
 		case 1:
 			fe0->dvb.frontend = dvb_attach(cx24117_attach,
 					&tbs_cx24117_config,
-					&i2c_bus->i2c_adap, NULL);
+					&i2c_bus->i2c_adap);
 			break;
 		/* PORT C */
 		case 2:
-			/* use fe1 pointer as temporary holder */
-			/* for the first frontend */
-			fe1 = videobuf_dvb_get_frontend(
-				&port->dev->ts1.frontends, 1);
-
 			fe0->dvb.frontend = dvb_attach(cx24117_attach,
 					&tbs_cx24117_config,
-					&i2c_bus->i2c_adap, fe1->dvb.frontend);
-			/* we're done, so clear fe1 pointer */
-			fe1 = NULL;
+					&i2c_bus->i2c_adap);
 			break;
 		}
 		break;
-- 
cgit 


From 6b378382396feb02c79ad562a01955df0529df45 Mon Sep 17 00:00:00 2001
From: Nick Swenson <nks@daterainc.com>
Date: Wed, 2 Oct 2013 17:55:45 -0700
Subject: percpu_ida: Removing unused arguement from alloc_local_tag

Removing unused struct percpu_ida *pool from arguements of
alloc_local_tag, changed it's one use in percpu_ida.c

(nab: Fixed reference of idr.c -> percpu_ida.c)

Signed-Off-By: Nick Swenson <nks@daterainc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 lib/percpu_ida.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/lib/percpu_ida.c b/lib/percpu_ida.c
index bab1ba2a4c71..e315903ec63a 100644
--- a/lib/percpu_ida.c
+++ b/lib/percpu_ida.c
@@ -126,8 +126,7 @@ static inline void alloc_global_tags(struct percpu_ida *pool,
 		  min(pool->nr_free, IDA_PCPU_BATCH_MOVE));
 }
 
-static inline unsigned alloc_local_tag(struct percpu_ida *pool,
-				       struct percpu_ida_cpu *tags)
+static inline unsigned alloc_local_tag(struct percpu_ida_cpu *tags)
 {
 	int tag = -ENOSPC;
 
@@ -168,7 +167,7 @@ int percpu_ida_alloc(struct percpu_ida *pool, gfp_t gfp)
 	tags = this_cpu_ptr(pool->tag_cpu);
 
 	/* Fastpath */
-	tag = alloc_local_tag(pool, tags);
+	tag = alloc_local_tag(tags);
 	if (likely(tag >= 0)) {
 		local_irq_restore(flags);
 		return tag;
-- 
cgit 


From 206260941fd4b6f25f28ecf4e267b2f9a0ba72d7 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Wed, 2 Oct 2013 16:56:10 +0200
Subject: KVM: mmu: remove uninteresting MMU "free" callbacks

The free MMU callback has been a wrapper for mmu_free_roots since mmu_free_roots
itself was introduced (commit 17ac10a, [PATCH] KVM: MU: Special treatment
for shadow pae root pages, 2007-01-05), and has always been the same for all
MMU cases.  Remove the indirection as it is useless.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/include/asm/kvm_host.h |  1 -
 arch/x86/kvm/mmu.c              | 22 ++++------------------
 2 files changed, 4 insertions(+), 19 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 52110d0ceb13..671c6f0bea51 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -261,7 +261,6 @@ struct kvm_mmu {
 			  bool prefault);
 	void (*inject_page_fault)(struct kvm_vcpu *vcpu,
 				  struct x86_exception *fault);
-	void (*free)(struct kvm_vcpu *vcpu);
 	gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva, u32 access,
 			    struct x86_exception *exception);
 	gpa_t (*translate_gpa)(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access);
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index cf95cfe050a6..1c4d580ba347 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -3424,18 +3424,12 @@ out_unlock:
 	return 0;
 }
 
-static void nonpaging_free(struct kvm_vcpu *vcpu)
-{
-	mmu_free_roots(vcpu);
-}
-
 static int nonpaging_init_context(struct kvm_vcpu *vcpu,
 				  struct kvm_mmu *context)
 {
 	context->new_cr3 = nonpaging_new_cr3;
 	context->page_fault = nonpaging_page_fault;
 	context->gva_to_gpa = nonpaging_gva_to_gpa;
-	context->free = nonpaging_free;
 	context->sync_page = nonpaging_sync_page;
 	context->invlpg = nonpaging_invlpg;
 	context->update_pte = nonpaging_update_pte;
@@ -3471,11 +3465,6 @@ static void inject_page_fault(struct kvm_vcpu *vcpu,
 	vcpu->arch.mmu.inject_page_fault(vcpu, fault);
 }
 
-static void paging_free(struct kvm_vcpu *vcpu)
-{
-	nonpaging_free(vcpu);
-}
-
 static bool sync_mmio_spte(struct kvm *kvm, u64 *sptep, gfn_t gfn,
 			   unsigned access, int *nr_present)
 {
@@ -3683,7 +3672,6 @@ static int paging64_init_context_common(struct kvm_vcpu *vcpu,
 	context->sync_page = paging64_sync_page;
 	context->invlpg = paging64_invlpg;
 	context->update_pte = paging64_update_pte;
-	context->free = paging_free;
 	context->shadow_root_level = level;
 	context->root_hpa = INVALID_PAGE;
 	context->direct_map = false;
@@ -3709,7 +3697,6 @@ static int paging32_init_context(struct kvm_vcpu *vcpu,
 	context->new_cr3 = paging_new_cr3;
 	context->page_fault = paging32_page_fault;
 	context->gva_to_gpa = paging32_gva_to_gpa;
-	context->free = paging_free;
 	context->sync_page = paging32_sync_page;
 	context->invlpg = paging32_invlpg;
 	context->update_pte = paging32_update_pte;
@@ -3732,7 +3719,6 @@ static int init_kvm_tdp_mmu(struct kvm_vcpu *vcpu)
 	context->base_role.word = 0;
 	context->new_cr3 = nonpaging_new_cr3;
 	context->page_fault = tdp_page_fault;
-	context->free = nonpaging_free;
 	context->sync_page = nonpaging_sync_page;
 	context->invlpg = nonpaging_invlpg;
 	context->update_pte = nonpaging_update_pte;
@@ -3812,7 +3798,6 @@ int kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *context,
 	context->sync_page = ept_sync_page;
 	context->invlpg = ept_invlpg;
 	context->update_pte = ept_update_pte;
-	context->free = paging_free;
 	context->root_level = context->shadow_root_level;
 	context->root_hpa = INVALID_PAGE;
 	context->direct_map = false;
@@ -3890,9 +3875,10 @@ static int init_kvm_mmu(struct kvm_vcpu *vcpu)
 static void destroy_kvm_mmu(struct kvm_vcpu *vcpu)
 {
 	ASSERT(vcpu);
-	if (VALID_PAGE(vcpu->arch.mmu.root_hpa))
-		/* mmu.free() should set root_hpa = INVALID_PAGE */
-		vcpu->arch.mmu.free(vcpu);
+	if (VALID_PAGE(vcpu->arch.mmu.root_hpa)) {
+		mmu_free_roots(vcpu);
+		WARN_ON(VALID_PAGE(vcpu->arch.mmu.root_hpa));
+	}
 }
 
 int kvm_mmu_reset_context(struct kvm_vcpu *vcpu)
-- 
cgit 


From d8d173dab2505e72b62882e5a580862e6ec1c06c Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Wed, 2 Oct 2013 16:56:11 +0200
Subject: KVM: mmu: remove uninteresting MMU "new_cr3" callbacks

The new_cr3 MMU callback has been a wrapper for mmu_free_roots since commit
e676505 (KVM: MMU: Force cr3 reload with two dimensional paging on mov
cr3 emulation, 2012-07-08).

The commit message mentioned that "mmu_free_roots() is somewhat of an overkill,
but fixing that is more complicated and will be done after this minimal fix".
One year has passed, and no one really felt the need to do a different fix.
Wrap the call with a kvm_mmu_new_cr3 function for clarity, but remove the
callback.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/include/asm/kvm_host.h |  2 +-
 arch/x86/kvm/mmu.c              | 13 +------------
 arch/x86/kvm/x86.c              |  2 +-
 3 files changed, 3 insertions(+), 14 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 671c6f0bea51..6e9785f5029f 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -253,7 +253,6 @@ struct kvm_pio_request {
  * mode.
  */
 struct kvm_mmu {
-	void (*new_cr3)(struct kvm_vcpu *vcpu);
 	void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long root);
 	unsigned long (*get_cr3)(struct kvm_vcpu *vcpu);
 	u64 (*get_pdptr)(struct kvm_vcpu *vcpu, int index);
@@ -923,6 +922,7 @@ int kvm_emulate_hypercall(struct kvm_vcpu *vcpu);
 int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code,
 		       void *insn, int insn_len);
 void kvm_mmu_invlpg(struct kvm_vcpu *vcpu, gva_t gva);
+void kvm_mmu_new_cr3(struct kvm_vcpu *vcpu);
 
 void kvm_enable_tdp(void);
 void kvm_disable_tdp(void);
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 1c4d580ba347..dff856c8621a 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2570,11 +2570,6 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *sptep,
 	kvm_release_pfn_clean(pfn);
 }
 
-static void nonpaging_new_cr3(struct kvm_vcpu *vcpu)
-{
-	mmu_free_roots(vcpu);
-}
-
 static pfn_t pte_prefetch_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn,
 				     bool no_dirty_log)
 {
@@ -3427,7 +3422,6 @@ out_unlock:
 static int nonpaging_init_context(struct kvm_vcpu *vcpu,
 				  struct kvm_mmu *context)
 {
-	context->new_cr3 = nonpaging_new_cr3;
 	context->page_fault = nonpaging_page_fault;
 	context->gva_to_gpa = nonpaging_gva_to_gpa;
 	context->sync_page = nonpaging_sync_page;
@@ -3448,9 +3442,8 @@ void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu)
 }
 EXPORT_SYMBOL_GPL(kvm_mmu_flush_tlb);
 
-static void paging_new_cr3(struct kvm_vcpu *vcpu)
+void kvm_mmu_new_cr3(struct kvm_vcpu *vcpu)
 {
-	pgprintk("%s: cr3 %lx\n", __func__, kvm_read_cr3(vcpu));
 	mmu_free_roots(vcpu);
 }
 
@@ -3666,7 +3659,6 @@ static int paging64_init_context_common(struct kvm_vcpu *vcpu,
 	update_last_pte_bitmap(vcpu, context);
 
 	ASSERT(is_pae(vcpu));
-	context->new_cr3 = paging_new_cr3;
 	context->page_fault = paging64_page_fault;
 	context->gva_to_gpa = paging64_gva_to_gpa;
 	context->sync_page = paging64_sync_page;
@@ -3694,7 +3686,6 @@ static int paging32_init_context(struct kvm_vcpu *vcpu,
 	update_permission_bitmask(vcpu, context, false);
 	update_last_pte_bitmap(vcpu, context);
 
-	context->new_cr3 = paging_new_cr3;
 	context->page_fault = paging32_page_fault;
 	context->gva_to_gpa = paging32_gva_to_gpa;
 	context->sync_page = paging32_sync_page;
@@ -3717,7 +3708,6 @@ static int init_kvm_tdp_mmu(struct kvm_vcpu *vcpu)
 	struct kvm_mmu *context = vcpu->arch.walk_mmu;
 
 	context->base_role.word = 0;
-	context->new_cr3 = nonpaging_new_cr3;
 	context->page_fault = tdp_page_fault;
 	context->sync_page = nonpaging_sync_page;
 	context->invlpg = nonpaging_invlpg;
@@ -3792,7 +3782,6 @@ int kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *context,
 	context->shadow_root_level = kvm_x86_ops->get_tdp_level();
 
 	context->nx = true;
-	context->new_cr3 = paging_new_cr3;
 	context->page_fault = ept_page_fault;
 	context->gva_to_gpa = ept_gva_to_gpa;
 	context->sync_page = ept_sync_page;
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index e8e2d09dfe7d..890fa8273bff 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -684,7 +684,7 @@ int kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3)
 
 	vcpu->arch.cr3 = cr3;
 	__set_bit(VCPU_EXREG_CR3, (ulong *)&vcpu->arch.regs_avail);
-	vcpu->arch.mmu.new_cr3(vcpu);
+	kvm_mmu_new_cr3(vcpu);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(kvm_set_cr3);
-- 
cgit 


From 95f93af4add9047f7d1ae4f43d12e66f2ba2d6f0 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Wed, 2 Oct 2013 16:56:12 +0200
Subject: KVM: mmu: unify destroy_kvm_mmu with kvm_mmu_unload

They do the same thing, and destroy_kvm_mmu can be confused with
kvm_mmu_destroy.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/kvm/mmu.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index dff856c8621a..d318d4274b27 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -3861,18 +3861,11 @@ static int init_kvm_mmu(struct kvm_vcpu *vcpu)
 		return init_kvm_softmmu(vcpu);
 }
 
-static void destroy_kvm_mmu(struct kvm_vcpu *vcpu)
+int kvm_mmu_reset_context(struct kvm_vcpu *vcpu)
 {
 	ASSERT(vcpu);
-	if (VALID_PAGE(vcpu->arch.mmu.root_hpa)) {
-		mmu_free_roots(vcpu);
-		WARN_ON(VALID_PAGE(vcpu->arch.mmu.root_hpa));
-	}
-}
 
-int kvm_mmu_reset_context(struct kvm_vcpu *vcpu)
-{
-	destroy_kvm_mmu(vcpu);
+	kvm_mmu_unload(vcpu);
 	return init_kvm_mmu(vcpu);
 }
 EXPORT_SYMBOL_GPL(kvm_mmu_reset_context);
@@ -3898,6 +3891,7 @@ EXPORT_SYMBOL_GPL(kvm_mmu_load);
 void kvm_mmu_unload(struct kvm_vcpu *vcpu)
 {
 	mmu_free_roots(vcpu);
+	WARN_ON(VALID_PAGE(vcpu->arch.mmu.root_hpa));
 }
 EXPORT_SYMBOL_GPL(kvm_mmu_unload);
 
@@ -4548,7 +4542,7 @@ void kvm_mmu_destroy(struct kvm_vcpu *vcpu)
 {
 	ASSERT(vcpu);
 
-	destroy_kvm_mmu(vcpu);
+	kvm_mmu_unload(vcpu);
 	free_mmu_pages(vcpu);
 	mmu_free_memory_caches(vcpu);
 }
-- 
cgit 


From 8a3c1a33476f6bfebd07954e2277dbc88003bd37 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Wed, 2 Oct 2013 16:56:13 +0200
Subject: KVM: mmu: change useless int return types to void

kvm_mmu initialization is mostly filling in function pointers, there is
no way for it to fail.  Clean up unused return values.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/include/asm/kvm_host.h |  4 +--
 arch/x86/kvm/mmu.c              | 71 ++++++++++++++++-------------------------
 arch/x86/kvm/mmu.h              |  4 +--
 arch/x86/kvm/svm.c              |  8 ++---
 arch/x86/kvm/vmx.c              |  6 ++--
 arch/x86/kvm/x86.c              |  2 +-
 6 files changed, 37 insertions(+), 58 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 6e9785f5029f..8dd143a65d60 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -780,11 +780,11 @@ void kvm_mmu_module_exit(void);
 
 void kvm_mmu_destroy(struct kvm_vcpu *vcpu);
 int kvm_mmu_create(struct kvm_vcpu *vcpu);
-int kvm_mmu_setup(struct kvm_vcpu *vcpu);
+void kvm_mmu_setup(struct kvm_vcpu *vcpu);
 void kvm_mmu_set_mask_ptes(u64 user_mask, u64 accessed_mask,
 		u64 dirty_mask, u64 nx_mask, u64 x_mask);
 
-int kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
+void kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
 void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot);
 void kvm_mmu_write_protect_pt_masked(struct kvm *kvm,
 				     struct kvm_memory_slot *slot,
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index d318d4274b27..40772ef0f2b1 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -3419,8 +3419,8 @@ out_unlock:
 	return 0;
 }
 
-static int nonpaging_init_context(struct kvm_vcpu *vcpu,
-				  struct kvm_mmu *context)
+static void nonpaging_init_context(struct kvm_vcpu *vcpu,
+				   struct kvm_mmu *context)
 {
 	context->page_fault = nonpaging_page_fault;
 	context->gva_to_gpa = nonpaging_gva_to_gpa;
@@ -3432,7 +3432,6 @@ static int nonpaging_init_context(struct kvm_vcpu *vcpu,
 	context->root_hpa = INVALID_PAGE;
 	context->direct_map = true;
 	context->nx = false;
-	return 0;
 }
 
 void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu)
@@ -3647,9 +3646,9 @@ static void update_last_pte_bitmap(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu)
 	mmu->last_pte_bitmap = map;
 }
 
-static int paging64_init_context_common(struct kvm_vcpu *vcpu,
-					struct kvm_mmu *context,
-					int level)
+static void paging64_init_context_common(struct kvm_vcpu *vcpu,
+					 struct kvm_mmu *context,
+					 int level)
 {
 	context->nx = is_nx(vcpu);
 	context->root_level = level;
@@ -3667,17 +3666,16 @@ static int paging64_init_context_common(struct kvm_vcpu *vcpu,
 	context->shadow_root_level = level;
 	context->root_hpa = INVALID_PAGE;
 	context->direct_map = false;
-	return 0;
 }
 
-static int paging64_init_context(struct kvm_vcpu *vcpu,
-				 struct kvm_mmu *context)
+static void paging64_init_context(struct kvm_vcpu *vcpu,
+				  struct kvm_mmu *context)
 {
-	return paging64_init_context_common(vcpu, context, PT64_ROOT_LEVEL);
+	paging64_init_context_common(vcpu, context, PT64_ROOT_LEVEL);
 }
 
-static int paging32_init_context(struct kvm_vcpu *vcpu,
-				 struct kvm_mmu *context)
+static void paging32_init_context(struct kvm_vcpu *vcpu,
+				  struct kvm_mmu *context)
 {
 	context->nx = false;
 	context->root_level = PT32_ROOT_LEVEL;
@@ -3694,16 +3692,15 @@ static int paging32_init_context(struct kvm_vcpu *vcpu,
 	context->shadow_root_level = PT32E_ROOT_LEVEL;
 	context->root_hpa = INVALID_PAGE;
 	context->direct_map = false;
-	return 0;
 }
 
-static int paging32E_init_context(struct kvm_vcpu *vcpu,
-				  struct kvm_mmu *context)
+static void paging32E_init_context(struct kvm_vcpu *vcpu,
+				   struct kvm_mmu *context)
 {
-	return paging64_init_context_common(vcpu, context, PT32E_ROOT_LEVEL);
+	paging64_init_context_common(vcpu, context, PT32E_ROOT_LEVEL);
 }
 
-static int init_kvm_tdp_mmu(struct kvm_vcpu *vcpu)
+static void init_kvm_tdp_mmu(struct kvm_vcpu *vcpu)
 {
 	struct kvm_mmu *context = vcpu->arch.walk_mmu;
 
@@ -3743,37 +3740,32 @@ static int init_kvm_tdp_mmu(struct kvm_vcpu *vcpu)
 
 	update_permission_bitmask(vcpu, context, false);
 	update_last_pte_bitmap(vcpu, context);
-
-	return 0;
 }
 
-int kvm_init_shadow_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *context)
+void kvm_init_shadow_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *context)
 {
-	int r;
 	bool smep = kvm_read_cr4_bits(vcpu, X86_CR4_SMEP);
 	ASSERT(vcpu);
 	ASSERT(!VALID_PAGE(vcpu->arch.mmu.root_hpa));
 
 	if (!is_paging(vcpu))
-		r = nonpaging_init_context(vcpu, context);
+		nonpaging_init_context(vcpu, context);
 	else if (is_long_mode(vcpu))
-		r = paging64_init_context(vcpu, context);
+		paging64_init_context(vcpu, context);
 	else if (is_pae(vcpu))
-		r = paging32E_init_context(vcpu, context);
+		paging32E_init_context(vcpu, context);
 	else
-		r = paging32_init_context(vcpu, context);
+		paging32_init_context(vcpu, context);
 
 	vcpu->arch.mmu.base_role.nxe = is_nx(vcpu);
 	vcpu->arch.mmu.base_role.cr4_pae = !!is_pae(vcpu);
 	vcpu->arch.mmu.base_role.cr0_wp  = is_write_protection(vcpu);
 	vcpu->arch.mmu.base_role.smep_andnot_wp
 		= smep && !is_write_protection(vcpu);
-
-	return r;
 }
 EXPORT_SYMBOL_GPL(kvm_init_shadow_mmu);
 
-int kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *context,
+void kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *context,
 		bool execonly)
 {
 	ASSERT(vcpu);
@@ -3793,24 +3785,19 @@ int kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *context,
 
 	update_permission_bitmask(vcpu, context, true);
 	reset_rsvds_bits_mask_ept(vcpu, context, execonly);
-
-	return 0;
 }
 EXPORT_SYMBOL_GPL(kvm_init_shadow_ept_mmu);
 
-static int init_kvm_softmmu(struct kvm_vcpu *vcpu)
+static void init_kvm_softmmu(struct kvm_vcpu *vcpu)
 {
-	int r = kvm_init_shadow_mmu(vcpu, vcpu->arch.walk_mmu);
-
+	kvm_init_shadow_mmu(vcpu, vcpu->arch.walk_mmu);
 	vcpu->arch.walk_mmu->set_cr3           = kvm_x86_ops->set_cr3;
 	vcpu->arch.walk_mmu->get_cr3           = get_cr3;
 	vcpu->arch.walk_mmu->get_pdptr         = kvm_pdptr_read;
 	vcpu->arch.walk_mmu->inject_page_fault = kvm_inject_page_fault;
-
-	return r;
 }
 
-static int init_kvm_nested_mmu(struct kvm_vcpu *vcpu)
+static void init_kvm_nested_mmu(struct kvm_vcpu *vcpu)
 {
 	struct kvm_mmu *g_context = &vcpu->arch.nested_mmu;
 
@@ -3847,11 +3834,9 @@ static int init_kvm_nested_mmu(struct kvm_vcpu *vcpu)
 
 	update_permission_bitmask(vcpu, g_context, false);
 	update_last_pte_bitmap(vcpu, g_context);
-
-	return 0;
 }
 
-static int init_kvm_mmu(struct kvm_vcpu *vcpu)
+static void init_kvm_mmu(struct kvm_vcpu *vcpu)
 {
 	if (mmu_is_nested(vcpu))
 		return init_kvm_nested_mmu(vcpu);
@@ -3861,12 +3846,12 @@ static int init_kvm_mmu(struct kvm_vcpu *vcpu)
 		return init_kvm_softmmu(vcpu);
 }
 
-int kvm_mmu_reset_context(struct kvm_vcpu *vcpu)
+void kvm_mmu_reset_context(struct kvm_vcpu *vcpu)
 {
 	ASSERT(vcpu);
 
 	kvm_mmu_unload(vcpu);
-	return init_kvm_mmu(vcpu);
+	init_kvm_mmu(vcpu);
 }
 EXPORT_SYMBOL_GPL(kvm_mmu_reset_context);
 
@@ -4250,12 +4235,12 @@ int kvm_mmu_create(struct kvm_vcpu *vcpu)
 	return alloc_mmu_pages(vcpu);
 }
 
-int kvm_mmu_setup(struct kvm_vcpu *vcpu)
+void kvm_mmu_setup(struct kvm_vcpu *vcpu)
 {
 	ASSERT(vcpu);
 	ASSERT(!VALID_PAGE(vcpu->arch.mmu.root_hpa));
 
-	return init_kvm_mmu(vcpu);
+	init_kvm_mmu(vcpu);
 }
 
 void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot)
diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h
index 77e044a0f5f7..292615274358 100644
--- a/arch/x86/kvm/mmu.h
+++ b/arch/x86/kvm/mmu.h
@@ -70,8 +70,8 @@ enum {
 };
 
 int handle_mmio_page_fault_common(struct kvm_vcpu *vcpu, u64 addr, bool direct);
-int kvm_init_shadow_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *context);
-int kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *context,
+void kvm_init_shadow_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *context);
+void kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *context,
 		bool execonly);
 
 static inline unsigned int kvm_mmu_available_pages(struct kvm *kvm)
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index c0bc80391e40..c7168a5cff1b 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1959,11 +1959,9 @@ static void nested_svm_inject_npf_exit(struct kvm_vcpu *vcpu,
 	nested_svm_vmexit(svm);
 }
 
-static int nested_svm_init_mmu_context(struct kvm_vcpu *vcpu)
+static void nested_svm_init_mmu_context(struct kvm_vcpu *vcpu)
 {
-	int r;
-
-	r = kvm_init_shadow_mmu(vcpu, &vcpu->arch.mmu);
+	kvm_init_shadow_mmu(vcpu, &vcpu->arch.mmu);
 
 	vcpu->arch.mmu.set_cr3           = nested_svm_set_tdp_cr3;
 	vcpu->arch.mmu.get_cr3           = nested_svm_get_tdp_cr3;
@@ -1971,8 +1969,6 @@ static int nested_svm_init_mmu_context(struct kvm_vcpu *vcpu)
 	vcpu->arch.mmu.inject_page_fault = nested_svm_inject_npf_exit;
 	vcpu->arch.mmu.shadow_root_level = get_npt_level();
 	vcpu->arch.walk_mmu              = &vcpu->arch.nested_mmu;
-
-	return r;
 }
 
 static void nested_svm_uninit_mmu_context(struct kvm_vcpu *vcpu)
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index be7fd0e1ad42..2db91645a6cc 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -7499,9 +7499,9 @@ static unsigned long nested_ept_get_cr3(struct kvm_vcpu *vcpu)
 	return get_vmcs12(vcpu)->ept_pointer;
 }
 
-static int nested_ept_init_mmu_context(struct kvm_vcpu *vcpu)
+static void nested_ept_init_mmu_context(struct kvm_vcpu *vcpu)
 {
-	int r = kvm_init_shadow_ept_mmu(vcpu, &vcpu->arch.mmu,
+	kvm_init_shadow_ept_mmu(vcpu, &vcpu->arch.mmu,
 			nested_vmx_ept_caps & VMX_EPT_EXECUTE_ONLY_BIT);
 
 	vcpu->arch.mmu.set_cr3           = vmx_set_cr3;
@@ -7509,8 +7509,6 @@ static int nested_ept_init_mmu_context(struct kvm_vcpu *vcpu)
 	vcpu->arch.mmu.inject_page_fault = nested_ept_inject_page_fault;
 
 	vcpu->arch.walk_mmu              = &vcpu->arch.nested_mmu;
-
-	return r;
 }
 
 static void nested_ept_uninit_mmu_context(struct kvm_vcpu *vcpu)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 890fa8273bff..c951c71dc80b 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -6699,7 +6699,7 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
 	if (r)
 		return r;
 	kvm_vcpu_reset(vcpu);
-	r = kvm_mmu_setup(vcpu);
+	kvm_mmu_setup(vcpu);
 	vcpu_put(vcpu);
 
 	return r;
-- 
cgit 


From 05071aa864e84000759191438a4a9ff7ba2c360e Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Fri, 27 Sep 2013 16:34:27 +0200
Subject: spi: Add a spi_w8r16be() helper

This patch adds a new spi_w8r16be() helper, which is similar to spi_w8r16()
except that it converts the read data word from big endian to native endianness
before returning it. The reason for introducing this new helper is that for SPI
slave devices it is quite common that the read 16 bit data word is in big
endian. So users of spi_w8r16() have to convert the result to native endianness
manually. A second reason is that in this case the endianness of the return
value of spi_w8r16() depends on its sign. If it is negative (i.e. a error code)
it is already in native endianness, if it is positive it is in big endian. The
sparse code checker doesn't like this kind of mixed endianness and special
annotations are necessary to keep it quiet (E.g. casting to be16 using __force).
Doing the conversion to native endianness in the helper function does not
require such annotations since we are not mixing different endiannesses in the
same variable.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/linux/spi/spi.h | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 887116dbce2c..0e0aebdeb56b 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -823,6 +823,33 @@ static inline ssize_t spi_w8r16(struct spi_device *spi, u8 cmd)
 	return (status < 0) ? status : result;
 }
 
+/**
+ * spi_w8r16be - SPI synchronous 8 bit write followed by 16 bit big-endian read
+ * @spi: device with which data will be exchanged
+ * @cmd: command to be written before data is read back
+ * Context: can sleep
+ *
+ * This returns the (unsigned) sixteen bit number returned by the device in cpu
+ * endianness, or else a negative error code. Callable only from contexts that
+ * can sleep.
+ *
+ * This function is similar to spi_w8r16, with the exception that it will
+ * convert the read 16 bit data word from big-endian to native endianness.
+ *
+ */
+static inline ssize_t spi_w8r16be(struct spi_device *spi, u8 cmd)
+
+{
+	ssize_t status;
+	__be16 result;
+
+	status = spi_write_then_read(spi, &cmd, 1, &result, 2);
+	if (status < 0)
+		return status;
+
+	return be16_to_cpu(result);
+}
+
 /*---------------------------------------------------------------------------*/
 
 /*
-- 
cgit 


From 600ba98bff438510dc81fc1ba9048420479bbded Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Fri, 27 Sep 2013 16:34:28 +0200
Subject: hwmon: (adt7310) Use spi_w8r16be() instead spi_w8r16()

Using spi_w8r16be() instead of spi_w8r16() in this driver makes a code a bit
shorter and cleaner.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/hwmon/adt7310.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/hwmon/adt7310.c b/drivers/hwmon/adt7310.c
index da5f0789fb97..5994cf68e0a4 100644
--- a/drivers/hwmon/adt7310.c
+++ b/drivers/hwmon/adt7310.c
@@ -42,13 +42,8 @@ static const u8 adt7310_reg_table[] = {
 static int adt7310_spi_read_word(struct device *dev, u8 reg)
 {
 	struct spi_device *spi = to_spi_device(dev);
-	int ret;
 
-	ret = spi_w8r16(spi, AD7310_COMMAND(reg) | ADT7310_CMD_READ);
-	if (ret < 0)
-		return ret;
-
-	return be16_to_cpu((__force __be16)ret);
+	return spi_w8r16be(spi, AD7310_COMMAND(reg) | ADT7310_CMD_READ);
 }
 
 static int adt7310_spi_write_word(struct device *dev, u8 reg, u16 data)
-- 
cgit 


From 235907422548aae38d03a545f20fceb728b70ddd Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Fri, 27 Sep 2013 16:34:29 +0200
Subject: staging:iio:ade7753/ade7754/ade7759: Use spi_w8r16be() instead of
 spi_w8r16()

Using spi_w8r16be() will do the conversion of the result from big endian to
native endian in the helper function. This makes the code a bit smaller and also
keeps sparse happy. Fixes the following sparse warnings:

	drivers/staging/iio/meter/ade7753.c:97:29: warning: incorrect type in argument 1 (different base types)
	drivers/staging/iio/meter/ade7753.c:97:29:    expected restricted __be16 const [usertype] *p
	drivers/staging/iio/meter/ade7753.c:97:29:    got unsigned short [usertype] *val

	drivers/staging/iio/meter/ade7754.c:97:29: warning: incorrect type in argument 1 (different base types)
	drivers/staging/iio/meter/ade7754.c:97:29:    expected restricted __be16 const [usertype] *p
	drivers/staging/iio/meter/ade7754.c:97:29:    got unsigned short [usertype] *val

	drivers/staging/iio/meter/ade7759.c:97:29: warning: incorrect type in argument 1 (different base types)
	drivers/staging/iio/meter/ade7759.c:97:29:    expected restricted __be16 const [usertype] *p
	drivers/staging/iio/meter/ade7759.c:97:29:    got unsigned short [usertype] *val

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/staging/iio/meter/ade7753.c | 3 +--
 drivers/staging/iio/meter/ade7754.c | 3 +--
 drivers/staging/iio/meter/ade7759.c | 3 +--
 3 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/iio/meter/ade7753.c b/drivers/staging/iio/meter/ade7753.c
index 74025fbae679..abfc8bd1794d 100644
--- a/drivers/staging/iio/meter/ade7753.c
+++ b/drivers/staging/iio/meter/ade7753.c
@@ -86,7 +86,7 @@ static int ade7753_spi_read_reg_16(struct device *dev,
 	struct ade7753_state *st = iio_priv(indio_dev);
 	ssize_t ret;
 
-	ret = spi_w8r16(st->us, ADE7753_READ_REG(reg_address));
+	ret = spi_w8r16be(st->us, ADE7753_READ_REG(reg_address));
 	if (ret < 0) {
 		dev_err(&st->us->dev, "problem when reading 16 bit register 0x%02X",
 			reg_address);
@@ -94,7 +94,6 @@ static int ade7753_spi_read_reg_16(struct device *dev,
 	}
 
 	*val = ret;
-	*val = be16_to_cpup(val);
 
 	return 0;
 }
diff --git a/drivers/staging/iio/meter/ade7754.c b/drivers/staging/iio/meter/ade7754.c
index f649ebe55a04..3d1c02cd6538 100644
--- a/drivers/staging/iio/meter/ade7754.c
+++ b/drivers/staging/iio/meter/ade7754.c
@@ -86,7 +86,7 @@ static int ade7754_spi_read_reg_16(struct device *dev,
 	struct ade7754_state *st = iio_priv(indio_dev);
 	int ret;
 
-	ret = spi_w8r16(st->us, ADE7754_READ_REG(reg_address));
+	ret = spi_w8r16be(st->us, ADE7754_READ_REG(reg_address));
 	if (ret < 0) {
 		dev_err(&st->us->dev, "problem when reading 16 bit register 0x%02X",
 			reg_address);
@@ -94,7 +94,6 @@ static int ade7754_spi_read_reg_16(struct device *dev,
 	}
 
 	*val = ret;
-	*val = be16_to_cpup(val);
 
 	return 0;
 }
diff --git a/drivers/staging/iio/meter/ade7759.c b/drivers/staging/iio/meter/ade7759.c
index d214ac4932cb..7467e51fd424 100644
--- a/drivers/staging/iio/meter/ade7759.c
+++ b/drivers/staging/iio/meter/ade7759.c
@@ -86,7 +86,7 @@ static int ade7759_spi_read_reg_16(struct device *dev,
 	struct ade7759_state *st = iio_priv(indio_dev);
 	int ret;
 
-	ret = spi_w8r16(st->us, ADE7759_READ_REG(reg_address));
+	ret = spi_w8r16be(st->us, ADE7759_READ_REG(reg_address));
 	if (ret < 0) {
 		dev_err(&st->us->dev, "problem when reading 16 bit register 0x%02X",
 			reg_address);
@@ -94,7 +94,6 @@ static int ade7759_spi_read_reg_16(struct device *dev,
 	}
 
 	*val = ret;
-	*val = be16_to_cpup(val);
 
 	return 0;
 }
-- 
cgit 


From 148c274ea64448673c4294e32cfd0d60b524ca9a Mon Sep 17 00:00:00 2001
From: Luka Perkov <luka@openwrt.org>
Date: Thu, 3 Oct 2013 05:06:45 +0200
Subject: ARM: kirkwood: ib62x0: add u-boot environment partition

Also, add some trivial whitespace cleanup.

Signed-off-by: Luka Perkov <luka@openwrt.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/kirkwood-ib62x0.dts | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/kirkwood-ib62x0.dts b/arch/arm/boot/dts/kirkwood-ib62x0.dts
index 066f40f99816..c5fb02f7ebc3 100644
--- a/arch/arm/boot/dts/kirkwood-ib62x0.dts
+++ b/arch/arm/boot/dts/kirkwood-ib62x0.dts
@@ -5,7 +5,7 @@
 
 / {
 	model = "RaidSonic ICY BOX IB-NAS62x0 (Rev B)";
-	compatible = "raidsonic,ib-nas6210-b", "raidsonic,ib-nas6220-b", "raidsonic,ib-nas6210", "raidsonic,ib-nas6220", "raidsonic,ib-nas62x0",  "marvell,kirkwood-88f6281", "marvell,kirkwood";
+	compatible = "raidsonic,ib-nas6210-b", "raidsonic,ib-nas6220-b", "raidsonic,ib-nas6210", "raidsonic,ib-nas6220", "raidsonic,ib-nas62x0", "marvell,kirkwood-88f6281", "marvell,kirkwood";
 
 	memory {
 		device_type = "memory";
@@ -43,6 +43,7 @@
 				marvell,function = "gpio";
 			};
 		};
+
 		serial@12000 {
 			status = "okay";
 		};
@@ -71,6 +72,7 @@
 			gpios = <&gpio0 28 1>;
 		};
 	};
+
 	gpio-leds {
 		compatible = "gpio-leds";
 		pinctrl-0 = <&pmx_led_os_red &pmx_led_os_green
@@ -91,14 +93,13 @@
 			gpios = <&gpio0 27 0>;
 		};
 	};
+
 	gpio_poweroff {
 		compatible = "gpio-poweroff";
 		pinctrl-0 = <&pmx_power_off>;
 		pinctrl-names = "default";
 		gpios = <&gpio0 24 0>;
 	};
-
-
 };
 
 &nand {
@@ -108,7 +109,12 @@
 
 	partition@0 {
 		label = "u-boot";
-		reg = <0x0000000 0x100000>;
+		reg = <0x0000000 0xe0000>;
+	};
+
+	partition@e0000 {
+		label = "u-boot environment";
+		reg = <0xe0000 0x100000>;
 	};
 
 	partition@100000 {
@@ -134,6 +140,7 @@
 
 &eth0 {
 	status = "okay";
+
 	ethernet0-port@0 {
 		phy-handle = <&ethphy0>;
 	};
-- 
cgit 


From 4f3e219d95a3c31b916dcd5e2631c4e440736f79 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 3 Oct 2013 01:26:37 -0700
Subject: Bluetooth: Only one command per L2CAP LE signalling is supported

The Bluetooth specification makes it clear that only one command
should be present in the L2CAP LE signalling packet. So tighten
the checks here and restrict it to exactly one command.

This is different from L2CAP BR/EDR signalling where multiple
commands can be part of the same packet.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/l2cap_core.c | 44 +++++++++++++++++++-------------------------
 1 file changed, 19 insertions(+), 25 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 583517e1dd43..02dba4e6df96 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -5322,43 +5322,37 @@ static inline void l2cap_le_sig_channel(struct l2cap_conn *conn,
 					struct sk_buff *skb)
 {
 	struct hci_conn *hcon = conn->hcon;
-	u8 *data = skb->data;
-	int len = skb->len;
-	struct l2cap_cmd_hdr cmd;
+	struct l2cap_cmd_hdr *cmd;
+	u16 len;
 	int err;
 
 	if (hcon->type != LE_LINK)
 		goto drop;
 
-	while (len >= L2CAP_CMD_HDR_SIZE) {
-		u16 cmd_len;
-		memcpy(&cmd, data, L2CAP_CMD_HDR_SIZE);
-		data += L2CAP_CMD_HDR_SIZE;
-		len  -= L2CAP_CMD_HDR_SIZE;
+	if (skb->len < L2CAP_CMD_HDR_SIZE)
+		goto drop;
 
-		cmd_len = le16_to_cpu(cmd.len);
+	cmd = (void *) skb->data;
+	skb_pull(skb, L2CAP_CMD_HDR_SIZE);
 
-		BT_DBG("code 0x%2.2x len %d id 0x%2.2x", cmd.code, cmd_len,
-		       cmd.ident);
+	len = le16_to_cpu(cmd->len);
 
-		if (cmd_len > len || !cmd.ident) {
-			BT_DBG("corrupted command");
-			break;
-		}
+	BT_DBG("code 0x%2.2x len %d id 0x%2.2x", cmd->code, len, cmd->ident);
 
-		err = l2cap_le_sig_cmd(conn, &cmd, data);
-		if (err) {
-			struct l2cap_cmd_rej_unk rej;
+	if (len != skb->len || !cmd->ident) {
+		BT_DBG("corrupted command");
+		goto drop;
+	}
 
-			BT_ERR("Wrong link type (%d)", err);
+	err = l2cap_le_sig_cmd(conn, cmd, skb->data);
+	if (err) {
+		struct l2cap_cmd_rej_unk rej;
 
-			rej.reason = l2cap_err_to_reason(err);
-			l2cap_send_cmd(conn, cmd.ident, L2CAP_COMMAND_REJ,
-				       sizeof(rej), &rej);
-		}
+		BT_ERR("Wrong link type (%d)", err);
 
-		data += cmd_len;
-		len  -= cmd_len;
+		rej.reason = l2cap_err_to_reason(err);
+		l2cap_send_cmd(conn, cmd->ident, L2CAP_COMMAND_REJ,
+			       sizeof(rej), &rej);
 	}
 
 drop:
-- 
cgit 


From 648c538204c23370c734d72921155cc24aff928d Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Tue, 1 Oct 2013 14:48:24 +0200
Subject: ASoC: tas5086: move two variables into private struct

We need to access the charge_period and start_mid_z values from other
places later, so move them to the private struct.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/tas5086.c | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/sound/soc/codecs/tas5086.c b/sound/soc/codecs/tas5086.c
index 6d31d88f7204..31b5868ef7c1 100644
--- a/sound/soc/codecs/tas5086.c
+++ b/sound/soc/codecs/tas5086.c
@@ -244,6 +244,8 @@ struct tas5086_private {
 	unsigned int	mclk, sclk;
 	unsigned int	format;
 	bool		deemph;
+	unsigned int	charge_period;
+	unsigned int	pwm_start_mid_z;
 	/* Current sample rate for de-emphasis control */
 	int		rate;
 	/* GPIO driving Reset pin, if any */
@@ -720,13 +722,15 @@ static const int tas5086_charge_period[] = {
 static int tas5086_probe(struct snd_soc_codec *codec)
 {
 	struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec);
-	int charge_period = 1300000; /* hardware default is 1300 ms */
-	u8 pwm_start_mid_z = 0;
 	int i, ret;
 
+	priv->pwm_start_mid_z = 0;
+	priv->charge_period = 1300000; /* hardware default is 1300 ms */
+
 	if (of_match_device(of_match_ptr(tas5086_dt_ids), codec->dev)) {
 		struct device_node *of_node = codec->dev->of_node;
-		of_property_read_u32(of_node, "ti,charge-period", &charge_period);
+		of_property_read_u32(of_node, "ti,charge-period",
+				     &priv->charge_period);
 
 		for (i = 0; i < 6; i++) {
 			char name[25];
@@ -735,7 +739,7 @@ static int tas5086_probe(struct snd_soc_codec *codec)
 				 "ti,mid-z-channel-%d", i + 1);
 
 			if (of_get_property(of_node, name, NULL) != NULL)
-				pwm_start_mid_z |= 1 << i;
+				priv->pwm_start_mid_z |= 1 << i;
 		}
 	}
 
@@ -744,25 +748,25 @@ static int tas5086_probe(struct snd_soc_codec *codec)
 	 * configure 'part 1' of the PWM starts to use Mid-Z, and tell
 	 * all configured mid-z channels to start start under 'part 1'.
 	 */
-	if (pwm_start_mid_z)
+	if (priv->pwm_start_mid_z)
 		regmap_write(priv->regmap, TAS5086_PWM_START,
 			     TAS5086_PWM_START_MIDZ_FOR_START_1 |
-				pwm_start_mid_z);
+				priv->pwm_start_mid_z);
 
 	/* lookup and set split-capacitor charge period */
-	if (charge_period == 0) {
+	if (priv->charge_period == 0) {
 		regmap_write(priv->regmap, TAS5086_SPLIT_CAP_CHARGE, 0);
 	} else {
 		i = index_in_array(tas5086_charge_period,
 				   ARRAY_SIZE(tas5086_charge_period),
-				   charge_period);
+				   priv->charge_period);
 		if (i >= 0)
 			regmap_write(priv->regmap, TAS5086_SPLIT_CAP_CHARGE,
 				     i + 0x08);
 		else
 			dev_warn(codec->dev,
 				 "Invalid split-cap charge period of %d ns.\n",
-				 charge_period);
+				 priv->charge_period);
 	}
 
 	/* enable factory trim */
-- 
cgit 


From d5fd3ccc2d9df493ad6f1eaf7aba72f690e98937 Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Tue, 1 Oct 2013 14:48:25 +0200
Subject: ASoC: tas5086: move initialization code to own functions

We'll need to call code to initialize and reset the codec again at
resume time, so factor it out first.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/tas5086.c | 128 +++++++++++++++++++++++++--------------------
 1 file changed, 72 insertions(+), 56 deletions(-)

diff --git a/sound/soc/codecs/tas5086.c b/sound/soc/codecs/tas5086.c
index 31b5868ef7c1..3a88c68145c2 100644
--- a/sound/soc/codecs/tas5086.c
+++ b/sound/soc/codecs/tas5086.c
@@ -458,6 +458,75 @@ static int tas5086_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
 	return regmap_write(priv->regmap, TAS5086_SOFT_MUTE, val);
 }
 
+static void tas5086_reset(struct tas5086_private *priv)
+{
+	if (gpio_is_valid(priv->gpio_nreset)) {
+		/* Reset codec - minimum assertion time is 400ns */
+		gpio_direction_output(priv->gpio_nreset, 0);
+		udelay(1);
+		gpio_set_value(priv->gpio_nreset, 1);
+
+		/* Codec needs ~15ms to wake up */
+		msleep(15);
+	}
+}
+
+/* charge period values in microseconds */
+static const int tas5086_charge_period[] = {
+	  13000,  16900,   23400,   31200,   41600,   54600,   72800,   96200,
+	 130000, 156000,  234000,  312000,  416000,  546000,  728000,  962000,
+	1300000, 169000, 2340000, 3120000, 4160000, 5460000, 7280000, 9620000,
+};
+
+static int tas5086_init(struct device *dev, struct tas5086_private *priv)
+{
+	int ret, i;
+
+	/*
+	 * If any of the channels is configured to start in Mid-Z mode,
+	 * configure 'part 1' of the PWM starts to use Mid-Z, and tell
+	 * all configured mid-z channels to start start under 'part 1'.
+	 */
+	if (priv->pwm_start_mid_z)
+		regmap_write(priv->regmap, TAS5086_PWM_START,
+			     TAS5086_PWM_START_MIDZ_FOR_START_1 |
+				priv->pwm_start_mid_z);
+
+	/* lookup and set split-capacitor charge period */
+	if (priv->charge_period == 0) {
+		regmap_write(priv->regmap, TAS5086_SPLIT_CAP_CHARGE, 0);
+	} else {
+		i = index_in_array(tas5086_charge_period,
+				   ARRAY_SIZE(tas5086_charge_period),
+				   priv->charge_period);
+		if (i >= 0)
+			regmap_write(priv->regmap, TAS5086_SPLIT_CAP_CHARGE,
+				     i + 0x08);
+		else
+			dev_warn(dev,
+				 "Invalid split-cap charge period of %d ns.\n",
+				 priv->charge_period);
+	}
+
+	/* enable factory trim */
+	ret = regmap_write(priv->regmap, TAS5086_OSC_TRIM, 0x00);
+	if (ret < 0)
+		return ret;
+
+	/* start all channels */
+	ret = regmap_write(priv->regmap, TAS5086_SYS_CONTROL_2, 0x20);
+	if (ret < 0)
+		return ret;
+
+	/* mute all channels for now */
+	ret = regmap_write(priv->regmap, TAS5086_SOFT_MUTE,
+			   TAS5086_SOFT_MUTE_ALL);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
 /* TAS5086 controls */
 static const DECLARE_TLV_DB_SCALE(tas5086_dac_tlv, -10350, 50, 1);
 
@@ -712,13 +781,6 @@ static const struct of_device_id tas5086_dt_ids[] = {
 MODULE_DEVICE_TABLE(of, tas5086_dt_ids);
 #endif
 
-/* charge period values in microseconds */
-static const int tas5086_charge_period[] = {
-	  13000,  16900,   23400,   31200,   41600,   54600,   72800,   96200,
-	 130000, 156000,  234000,  312000,  416000,  546000,  728000,  962000,
-	1300000, 169000, 2340000, 3120000, 4160000, 5460000, 7280000, 9620000,
-};
-
 static int tas5086_probe(struct snd_soc_codec *codec)
 {
 	struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec);
@@ -729,6 +791,7 @@ static int tas5086_probe(struct snd_soc_codec *codec)
 
 	if (of_match_device(of_match_ptr(tas5086_dt_ids), codec->dev)) {
 		struct device_node *of_node = codec->dev->of_node;
+
 		of_property_read_u32(of_node, "ti,charge-period",
 				     &priv->charge_period);
 
@@ -743,39 +806,7 @@ static int tas5086_probe(struct snd_soc_codec *codec)
 		}
 	}
 
-	/*
-	 * If any of the channels is configured to start in Mid-Z mode,
-	 * configure 'part 1' of the PWM starts to use Mid-Z, and tell
-	 * all configured mid-z channels to start start under 'part 1'.
-	 */
-	if (priv->pwm_start_mid_z)
-		regmap_write(priv->regmap, TAS5086_PWM_START,
-			     TAS5086_PWM_START_MIDZ_FOR_START_1 |
-				priv->pwm_start_mid_z);
-
-	/* lookup and set split-capacitor charge period */
-	if (priv->charge_period == 0) {
-		regmap_write(priv->regmap, TAS5086_SPLIT_CAP_CHARGE, 0);
-	} else {
-		i = index_in_array(tas5086_charge_period,
-				   ARRAY_SIZE(tas5086_charge_period),
-				   priv->charge_period);
-		if (i >= 0)
-			regmap_write(priv->regmap, TAS5086_SPLIT_CAP_CHARGE,
-				     i + 0x08);
-		else
-			dev_warn(codec->dev,
-				 "Invalid split-cap charge period of %d ns.\n",
-				 priv->charge_period);
-	}
-
-	/* enable factory trim */
-	ret = regmap_write(priv->regmap, TAS5086_OSC_TRIM, 0x00);
-	if (ret < 0)
-		return ret;
-
-	/* start all channels */
-	ret = regmap_write(priv->regmap, TAS5086_SYS_CONTROL_2, 0x20);
+	ret = tas5086_init(codec->dev, priv);
 	if (ret < 0)
 		return ret;
 
@@ -784,12 +815,6 @@ static int tas5086_probe(struct snd_soc_codec *codec)
 	if (ret < 0)
 		return ret;
 
-	/* mute all channels for now */
-	ret = regmap_write(priv->regmap, TAS5086_SOFT_MUTE,
-			   TAS5086_SOFT_MUTE_ALL);
-	if (ret < 0)
-		return ret;
-
 	return 0;
 }
 
@@ -866,17 +891,8 @@ static int tas5086_i2c_probe(struct i2c_client *i2c,
 		if (devm_gpio_request(dev, gpio_nreset, "TAS5086 Reset"))
 			gpio_nreset = -EINVAL;
 
-	if (gpio_is_valid(gpio_nreset)) {
-		/* Reset codec - minimum assertion time is 400ns */
-		gpio_direction_output(gpio_nreset, 0);
-		udelay(1);
-		gpio_set_value(gpio_nreset, 1);
-
-		/* Codec needs ~15ms to wake up */
-		msleep(15);
-	}
-
 	priv->gpio_nreset = gpio_nreset;
+	tas5086_reset(priv);
 
 	/* The TAS5086 always returns 0x03 in its TAS5086_DEV_ID register */
 	ret = regmap_read(priv->regmap, TAS5086_DEV_ID, &i);
-- 
cgit 


From 25c84cc1ace56421fa9a676a387a1919e7bc4e62 Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Tue, 1 Oct 2013 14:48:26 +0200
Subject: ASoC: tas5086: add suspend callback

When going to suspend, shut down all channels and re-do the init
procedure at resume time.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/tas5086.c | 30 ++++++++++++++++++++++++++++--
 1 file changed, 28 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/tas5086.c b/sound/soc/codecs/tas5086.c
index 3a88c68145c2..2996d2ea026b 100644
--- a/sound/soc/codecs/tas5086.c
+++ b/sound/soc/codecs/tas5086.c
@@ -762,14 +762,39 @@ static struct snd_soc_dai_driver tas5086_dai = {
 };
 
 #ifdef CONFIG_PM
+static int tas5086_soc_suspend(struct snd_soc_codec *codec)
+{
+	struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec);
+	int ret;
+
+	/* Shut down all channels */
+	ret = regmap_write(priv->regmap, TAS5086_SYS_CONTROL_2, 0x60);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
 static int tas5086_soc_resume(struct snd_soc_codec *codec)
 {
 	struct tas5086_private *priv = snd_soc_codec_get_drvdata(codec);
+	int ret;
 
-	/* Restore codec state */
-	return regcache_sync(priv->regmap);
+	tas5086_reset(priv);
+	regcache_mark_dirty(priv->regmap);
+
+	ret = tas5086_init(codec->dev, priv);
+	if (ret < 0)
+		return ret;
+
+	ret = regcache_sync(priv->regmap);
+	if (ret < 0)
+		return ret;
+
+	return 0;
 }
 #else
+#define tas5086_soc_suspend	NULL
 #define tas5086_soc_resume	NULL
 #endif /* CONFIG_PM */
 
@@ -832,6 +857,7 @@ static int tas5086_remove(struct snd_soc_codec *codec)
 static struct snd_soc_codec_driver soc_codec_dev_tas5086 = {
 	.probe			= tas5086_probe,
 	.remove			= tas5086_remove,
+	.suspend		= tas5086_soc_suspend,
 	.resume			= tas5086_soc_resume,
 	.controls		= tas5086_controls,
 	.num_controls		= ARRAY_SIZE(tas5086_controls),
-- 
cgit 


From a85e419edee73ec458354388e1ba9b8b58bdcbba Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Tue, 1 Oct 2013 14:50:02 +0200
Subject: ASoC: davinci-mcasp: add support for suspend and resume

When the system returns from suspend, it looses its configuration. Most
of it is restored by running a normal audio stream startup, but the DAI
format is left unset as that's configured on the audio device creation.

Hence, it suffices here to care for the registers which are touched by
davinci_mcasp_set_dai_fmt() and restore them when the system is resumed.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/davinci/davinci-mcasp.c | 39 +++++++++++++++++++++++++++++++++++++++
 sound/soc/davinci/davinci-mcasp.h | 12 ++++++++++++
 2 files changed, 51 insertions(+)

diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index 32ddb7fe5034..cdfe959d6062 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -1251,12 +1251,51 @@ static int davinci_mcasp_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int davinci_mcasp_suspend(struct device *dev)
+{
+	struct davinci_audio_dev *a = dev_get_drvdata(dev);
+	void __iomem *base = a->base;
+
+	a->context.txfmtctl = mcasp_get_reg(base + DAVINCI_MCASP_TXFMCTL_REG);
+	a->context.rxfmtctl = mcasp_get_reg(base + DAVINCI_MCASP_RXFMCTL_REG);
+	a->context.txfmt = mcasp_get_reg(base + DAVINCI_MCASP_TXFMT_REG);
+	a->context.rxfmt = mcasp_get_reg(base + DAVINCI_MCASP_RXFMT_REG);
+	a->context.aclkxctl = mcasp_get_reg(base + DAVINCI_MCASP_ACLKXCTL_REG);
+	a->context.aclkrctl = mcasp_get_reg(base + DAVINCI_MCASP_ACLKRCTL_REG);
+	a->context.pdir = mcasp_get_reg(base + DAVINCI_MCASP_PDIR_REG);
+
+	return 0;
+}
+
+static int davinci_mcasp_resume(struct device *dev)
+{
+	struct davinci_audio_dev *a = dev_get_drvdata(dev);
+	void __iomem *base = a->base;
+
+	mcasp_set_reg(base + DAVINCI_MCASP_TXFMCTL_REG, a->context.txfmtctl);
+	mcasp_set_reg(base + DAVINCI_MCASP_RXFMCTL_REG, a->context.rxfmtctl);
+	mcasp_set_reg(base + DAVINCI_MCASP_TXFMT_REG, a->context.txfmt);
+	mcasp_set_reg(base + DAVINCI_MCASP_RXFMT_REG, a->context.rxfmt);
+	mcasp_set_reg(base + DAVINCI_MCASP_ACLKXCTL_REG, a->context.aclkxctl);
+	mcasp_set_reg(base + DAVINCI_MCASP_ACLKRCTL_REG, a->context.aclkrctl);
+	mcasp_set_reg(base + DAVINCI_MCASP_PDIR_REG, a->context.pdir);
+
+	return 0;
+}
+#endif
+
+SIMPLE_DEV_PM_OPS(davinci_mcasp_pm_ops,
+		  davinci_mcasp_suspend,
+		  davinci_mcasp_resume);
+
 static struct platform_driver davinci_mcasp_driver = {
 	.probe		= davinci_mcasp_probe,
 	.remove		= davinci_mcasp_remove,
 	.driver		= {
 		.name	= "davinci-mcasp",
 		.owner	= THIS_MODULE,
+		.pm	= &davinci_mcasp_pm_ops,
 		.of_match_table = mcasp_dt_ids,
 	},
 };
diff --git a/sound/soc/davinci/davinci-mcasp.h b/sound/soc/davinci/davinci-mcasp.h
index a9ac0c11da71..a2e27e1c32f3 100644
--- a/sound/soc/davinci/davinci-mcasp.h
+++ b/sound/soc/davinci/davinci-mcasp.h
@@ -43,6 +43,18 @@ struct davinci_audio_dev {
 	/* McASP FIFO related */
 	u8	txnumevt;
 	u8	rxnumevt;
+
+#ifdef CONFIG_PM_SLEEP
+	struct {
+		u32	txfmtctl;
+		u32	rxfmtctl;
+		u32	txfmt;
+		u32	rxfmt;
+		u32	aclkxctl;
+		u32	aclkrctl;
+		u32	pdir;
+	} context;
+#endif
 };
 
 #endif	/* DAVINCI_MCASP_H */
-- 
cgit 


From 18dca93eb7faa8d90fbc54bfb08560caebbf92cd Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Wed, 2 Oct 2013 20:54:20 +0800
Subject: regulator: stw481x-vmmc: Set missing .of_match_table to
 stw481x_vmmc_match

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/stw481x-vmmc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/regulator/stw481x-vmmc.c b/drivers/regulator/stw481x-vmmc.c
index 5ae72a877259..f78857bd6a15 100644
--- a/drivers/regulator/stw481x-vmmc.c
+++ b/drivers/regulator/stw481x-vmmc.c
@@ -102,6 +102,7 @@ static struct platform_driver stw481x_vmmc_regulator_driver = {
 	.driver = {
 		.name  = "stw481x-vmmc-regulator",
 		.owner = THIS_MODULE,
+		.of_match_table = stw481x_vmmc_match,
 	},
 	.probe = stw481x_vmmc_regulator_probe,
 	.remove = stw481x_vmmc_regulator_remove,
-- 
cgit 


From 0e746ec55812a2f8f5ab986aeedd5291e3b6fad4 Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <b.brezillon@overkiz.com>
Date: Wed, 2 Oct 2013 14:35:20 +0200
Subject: clocksource: tcb_clksrc: Replace clk_enable/disable with
 clk_prepare_enable/disable_unprepare

Replace clk_enable/disable with clk_prepare_enable/disable_unprepare to
avoid common clk framework warnings.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/clocksource/tcb_clksrc.c | 26 +++++++++++++++++++++-----
 1 file changed, 21 insertions(+), 5 deletions(-)

diff --git a/drivers/clocksource/tcb_clksrc.c b/drivers/clocksource/tcb_clksrc.c
index 8a6187225dd0..048156291fa0 100644
--- a/drivers/clocksource/tcb_clksrc.c
+++ b/drivers/clocksource/tcb_clksrc.c
@@ -100,7 +100,7 @@ static void tc_mode(enum clock_event_mode m, struct clock_event_device *d)
 			|| tcd->clkevt.mode == CLOCK_EVT_MODE_ONESHOT) {
 		__raw_writel(0xff, regs + ATMEL_TC_REG(2, IDR));
 		__raw_writel(ATMEL_TC_CLKDIS, regs + ATMEL_TC_REG(2, CCR));
-		clk_disable(tcd->clk);
+		clk_disable_unprepare(tcd->clk);
 	}
 
 	switch (m) {
@@ -109,7 +109,7 @@ static void tc_mode(enum clock_event_mode m, struct clock_event_device *d)
 	 * of oneshot, we get lower overhead and improved accuracy.
 	 */
 	case CLOCK_EVT_MODE_PERIODIC:
-		clk_enable(tcd->clk);
+		clk_prepare_enable(tcd->clk);
 
 		/* slow clock, count up to RC, then irq and restart */
 		__raw_writel(timer_clock
@@ -126,7 +126,7 @@ static void tc_mode(enum clock_event_mode m, struct clock_event_device *d)
 		break;
 
 	case CLOCK_EVT_MODE_ONESHOT:
-		clk_enable(tcd->clk);
+		clk_prepare_enable(tcd->clk);
 
 		/* slow clock, count up to RC, then irq and stop */
 		__raw_writel(timer_clock | ATMEL_TC_CPCSTOP
@@ -265,6 +265,7 @@ static int __init tcb_clksrc_init(void)
 	int best_divisor_idx = -1;
 	int clk32k_divisor_idx = -1;
 	int i;
+	int ret;
 
 	tc = atmel_tc_alloc(CONFIG_ATMEL_TCB_CLKSRC_BLOCK, clksrc.name);
 	if (!tc) {
@@ -275,7 +276,11 @@ static int __init tcb_clksrc_init(void)
 	pdev = tc->pdev;
 
 	t0_clk = tc->clk[0];
-	clk_enable(t0_clk);
+	ret = clk_prepare_enable(t0_clk);
+	if (ret) {
+		pr_debug("can't enable T0 clk\n");
+		goto err_free_tc;
+	}
 
 	/* How fast will we be counting?  Pick something over 5 MHz.  */
 	rate = (u32) clk_get_rate(t0_clk);
@@ -313,7 +318,11 @@ static int __init tcb_clksrc_init(void)
 		/* tclib will give us three clocks no matter what the
 		 * underlying platform supports.
 		 */
-		clk_enable(tc->clk[1]);
+		ret = clk_prepare_enable(tc->clk[1]);
+		if (ret) {
+			pr_debug("can't enable T1 clk\n");
+			goto err_disable_t0;
+		}
 		/* setup both channel 0 & 1 */
 		tcb_setup_dual_chan(tc, best_divisor_idx);
 	}
@@ -325,5 +334,12 @@ static int __init tcb_clksrc_init(void)
 	setup_clkevents(tc, clk32k_divisor_idx);
 
 	return 0;
+
+err_disable_t0:
+	clk_disable_unprepare(t0_clk);
+
+err_free_tc:
+	atmel_tc_free(tc);
+	return ret;
 }
 arch_initcall(tcb_clksrc_init);
-- 
cgit 


From 5b3c11da141c27df6f8dd8acf90c0046ebab3a07 Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <b.brezillon@overkiz.com>
Date: Wed, 2 Oct 2013 14:35:41 +0200
Subject: clocksource: tcb_clksrc: Improve driver robustness

Check function return values to avoid false positive driver init.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/clocksource/tcb_clksrc.c | 33 ++++++++++++++++++++++++++++-----
 1 file changed, 28 insertions(+), 5 deletions(-)

diff --git a/drivers/clocksource/tcb_clksrc.c b/drivers/clocksource/tcb_clksrc.c
index 048156291fa0..10a5d9ef23f5 100644
--- a/drivers/clocksource/tcb_clksrc.c
+++ b/drivers/clocksource/tcb_clksrc.c
@@ -184,11 +184,18 @@ static struct irqaction tc_irqaction = {
 	.handler	= ch2_irq,
 };
 
-static void __init setup_clkevents(struct atmel_tc *tc, int clk32k_divisor_idx)
+static int __init setup_clkevents(struct atmel_tc *tc, int clk32k_divisor_idx)
 {
+	int ret;
 	struct clk *t2_clk = tc->clk[2];
 	int irq = tc->irq[2];
 
+	/* try to enable t2 clk to avoid future errors in mode change */
+	ret = clk_prepare_enable(t2_clk);
+	if (ret)
+		return ret;
+	clk_disable_unprepare(t2_clk);
+
 	clkevt.regs = tc->regs;
 	clkevt.clk = t2_clk;
 	tc_irqaction.dev_id = &clkevt;
@@ -197,16 +204,21 @@ static void __init setup_clkevents(struct atmel_tc *tc, int clk32k_divisor_idx)
 
 	clkevt.clkevt.cpumask = cpumask_of(0);
 
+	ret = setup_irq(irq, &tc_irqaction);
+	if (ret)
+		return ret;
+
 	clockevents_config_and_register(&clkevt.clkevt, 32768, 1, 0xffff);
 
-	setup_irq(irq, &tc_irqaction);
+	return ret;
 }
 
 #else /* !CONFIG_GENERIC_CLOCKEVENTS */
 
-static void __init setup_clkevents(struct atmel_tc *tc, int clk32k_divisor_idx)
+static int __init setup_clkevents(struct atmel_tc *tc, int clk32k_divisor_idx)
 {
 	/* NOTHING */
+	return 0;
 }
 
 #endif
@@ -328,13 +340,24 @@ static int __init tcb_clksrc_init(void)
 	}
 
 	/* and away we go! */
-	clocksource_register_hz(&clksrc, divided_rate);
+	ret = clocksource_register_hz(&clksrc, divided_rate);
+	if (ret)
+		goto err_disable_t1;
 
 	/* channel 2:  periodic and oneshot timer support */
-	setup_clkevents(tc, clk32k_divisor_idx);
+	ret = setup_clkevents(tc, clk32k_divisor_idx);
+	if (ret)
+		goto err_unregister_clksrc;
 
 	return 0;
 
+err_unregister_clksrc:
+	clocksource_unregister(&clksrc);
+
+err_disable_t1:
+	if (!tc->tcb_config || tc->tcb_config->counter_width != 32)
+		clk_disable_unprepare(tc->clk[1]);
+
 err_disable_t0:
 	clk_disable_unprepare(t0_clk);
 
-- 
cgit 


From f51380a75652a4600b34ce384c4ff89ce0a15132 Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <b.brezillon@overkiz.com>
Date: Wed, 2 Oct 2013 14:35:48 +0200
Subject: clocksource: tcb_clksrc: Remove IRQF_DISABLED

Remove the deprecated IRQF_DISABLED flag.

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/clocksource/tcb_clksrc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clocksource/tcb_clksrc.c b/drivers/clocksource/tcb_clksrc.c
index 10a5d9ef23f5..00fdd1170284 100644
--- a/drivers/clocksource/tcb_clksrc.c
+++ b/drivers/clocksource/tcb_clksrc.c
@@ -180,7 +180,7 @@ static irqreturn_t ch2_irq(int irq, void *handle)
 
 static struct irqaction tc_irqaction = {
 	.name		= "tc_clkevt",
-	.flags		= IRQF_TIMER | IRQF_DISABLED,
+	.flags		= IRQF_TIMER,
 	.handler	= ch2_irq,
 };
 
-- 
cgit 


From 7837feff0d881835309fced7a7c4b5f32866d632 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Thu, 3 Oct 2013 16:35:26 +0200
Subject: arm: mvebu: add support for the Armada XP Matrix board

The Armada XP Matrix board is the mother board of a more complex
system. The mother board uses an Armada XP MV78460, 4 serial ports, 2
SATA ports, one Ethernet connection, a PCIe port and a USB port. All
those devices are enabled in the Device Tree added by this patch.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/Makefile             |  1 +
 arch/arm/boot/dts/armada-xp-matrix.dts | 75 ++++++++++++++++++++++++++++++++++
 2 files changed, 76 insertions(+)
 create mode 100644 arch/arm/boot/dts/armada-xp-matrix.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 69193bedc88c..5b832744a0bb 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -111,6 +111,7 @@ dtb-$(CONFIG_ARCH_MVEBU) += armada-370-db.dtb \
 	armada-xp-axpwifiap.dtb \
 	armada-xp-db.dtb \
 	armada-xp-gp.dtb \
+	armada-xp-matrix.dtb \
 	armada-xp-openblocks-ax3-4.dtb
 dtb-$(CONFIG_ARCH_MXC) += \
 	imx25-karo-tx25.dtb \
diff --git a/arch/arm/boot/dts/armada-xp-matrix.dts b/arch/arm/boot/dts/armada-xp-matrix.dts
new file mode 100644
index 000000000000..e47c49ecd55c
--- /dev/null
+++ b/arch/arm/boot/dts/armada-xp-matrix.dts
@@ -0,0 +1,75 @@
+/*
+ * Device Tree file for Marvell Armada XP Matrix board
+ *
+ * Copyright (C) 2013 Marvell
+ *
+ * Lior Amsalem <alior@marvell.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+/dts-v1/;
+#include "armada-xp-mv78460.dtsi"
+
+/ {
+	model = "Marvell Armada XP Matrix Board";
+	compatible = "marvell,axp-matrix", "marvell,armadaxp-mv78460", "marvell,armadaxp", "marvell,armada-370-xp";
+
+	chosen {
+		bootargs = "console=ttyS0,115200 earlyprintk";
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0 0x00000000 0 0x80000000>; /* 2 GB */
+	};
+
+	soc {
+		ranges = <MBUS_ID(0xf0, 0x01) 0 0 0xf1000000 0x100000
+			  MBUS_ID(0x01, 0x1d) 0 0 0xfff00000 0x100000>;
+
+		internal-regs {
+			serial@12000 {
+				clock-frequency = <250000000>;
+				status = "okay";
+			};
+			serial@12100 {
+				clock-frequency = <250000000>;
+				status = "okay";
+			};
+			serial@12200 {
+				clock-frequency = <250000000>;
+				status = "okay";
+			};
+			serial@12300 {
+				clock-frequency = <250000000>;
+				status = "okay";
+			};
+
+			sata@a0000 {
+				nr-ports = <2>;
+				status = "okay";
+			};
+
+			ethernet@30000 {
+				status = "okay";
+				phy-mode = "sgmii";
+			};
+
+			pcie-controller {
+				status = "okay";
+
+				pcie@1,0 {
+					/* Port 0, Lane 0 */
+					status = "okay";
+				};
+			};
+
+			usb@50000 {
+				status = "okay";
+			};
+		};
+	};
+};
-- 
cgit 


From 43f6fc9542d6c42cc2e5783536ed31d90516c999 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Wed, 2 Oct 2013 20:47:56 +0800
Subject: regulator: as3722: Fix equation to calculate max_uV in
 regulator_lin_range macro

Fix off-by-one in the equation to calculate max_uV and also adjust the _min_uV
setting accordingly.

For LDOs:
The voltage select bits set the LDO output voltage 0.825V...3.3V, 25mV steps
  ....00h : LDO off
  01h-24h : V_LDO4 = 0.8V + ldo4_vsel * 25mV
                   = 0.825V + (ldo4_vsel - 1h) * 25mV
  25h-3Fh : do not use
  40h-7Fh : V_LDO4 = 1.725V + (ldo4_vsel - 40h) * 25mV

For SD2345:
The voltage select bits set the DC/DC output voltage level and power the DC/DC
converter down.
  ....00h : DC/DC powered down
  01h-40h : V_SD2 = 0.6V + sd2_vsel * 12.5mV
                  = 0.6125V + (sd2_vsel - 1h) * 12.5mV
  41h-70h : V_SD2 = 1.4V + (sd2_vsel - 40h) * 25mV
                  = 1.425V + (sd2_vsel - 41h) * 25mV
  71h-7Fh : V_SD2 = 2.6V + (sd2_vsel - 70h) * 50mV
                  = 2.65V + (sd2_vsel - 71h) * 50mV

Note, the third entry in as3722_sd2345_ranges is wrong in current code.
Fix it based on the datasheet.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/as3722-regulator.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/regulator/as3722-regulator.c b/drivers/regulator/as3722-regulator.c
index 16a5d26a2d35..01a8b1788981 100644
--- a/drivers/regulator/as3722-regulator.c
+++ b/drivers/regulator/as3722-regulator.c
@@ -441,11 +441,11 @@ static struct regulator_ops as3722_ldo3_extcntrl_ops = {
 		.max_sel = _max_sel,					\
 		.uV_step = _step_uV,					\
 		.min_uV = _min_uV,					\
-		.max_uV = _min_uV + (_max_sel - _min_sel + 1) * _step_uV, \
+		.max_uV = _min_uV + (_max_sel - _min_sel) * _step_uV,	\
 	}
 
 static const struct regulator_linear_range as3722_ldo_ranges[] = {
-	regulator_lin_range(0x01, 0x24,  800000, 25000),
+	regulator_lin_range(0x01, 0x24,  825000, 25000),
 	regulator_lin_range(0x40, 0x7F, 1725000, 25000),
 };
 
@@ -605,9 +605,9 @@ static int as3722_sd016_set_current_limit(struct regulator_dev *rdev,
 }
 
 static const struct regulator_linear_range as3722_sd2345_ranges[] = {
-	regulator_lin_range(0x01, 0x40,  600000, 12500),
-	regulator_lin_range(0x41, 0x70, 1400000, 25000),
-	regulator_lin_range(0x71, 0x7F, 1725000, 50000),
+	regulator_lin_range(0x01, 0x40,  612500, 12500),
+	regulator_lin_range(0x41, 0x70, 1425000, 25000),
+	regulator_lin_range(0x71, 0x7F, 2650000, 50000),
 };
 
 static struct regulator_ops as3722_sd016_ops = {
-- 
cgit 


From 5e965704803dcbcbfbf97e8a976b3778b245834b Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Wed, 2 Oct 2013 20:49:29 +0800
Subject: regulator: as3722: Fix off-by-one n_voltages setting for SDx

AS3722_SDx_VSEL_MAX means the maximum selecter, the n_voltages should be
AS3722_SDx_VSEL_MAX + 1.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/as3722-regulator.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/regulator/as3722-regulator.c b/drivers/regulator/as3722-regulator.c
index 01a8b1788981..d7b71a9c41f1 100644
--- a/drivers/regulator/as3722-regulator.c
+++ b/drivers/regulator/as3722-regulator.c
@@ -99,7 +99,7 @@ static const struct as3722_register_mapping as3722_reg_lookup[] = {
 		.sleep_ctrl_mask = AS3722_SD0_EXT_ENABLE_MASK,
 		.control_reg = AS3722_SD0_CONTROL_REG,
 		.mode_mask = AS3722_SD0_MODE_FAST,
-		.n_voltages = AS3722_SD0_VSEL_MAX,
+		.n_voltages = AS3722_SD0_VSEL_MAX + 1,
 	},
 	{
 		.regulator_id = AS3722_REGULATOR_ID_SD1,
@@ -112,7 +112,7 @@ static const struct as3722_register_mapping as3722_reg_lookup[] = {
 		.sleep_ctrl_mask = AS3722_SD1_EXT_ENABLE_MASK,
 		.control_reg = AS3722_SD1_CONTROL_REG,
 		.mode_mask = AS3722_SD1_MODE_FAST,
-		.n_voltages = AS3722_SD0_VSEL_MAX,
+		.n_voltages = AS3722_SD0_VSEL_MAX + 1,
 	},
 	{
 		.regulator_id = AS3722_REGULATOR_ID_SD2,
@@ -126,7 +126,7 @@ static const struct as3722_register_mapping as3722_reg_lookup[] = {
 		.sleep_ctrl_mask = AS3722_SD2_EXT_ENABLE_MASK,
 		.control_reg = AS3722_SD23_CONTROL_REG,
 		.mode_mask = AS3722_SD2_MODE_FAST,
-		.n_voltages = AS3722_SD2_VSEL_MAX,
+		.n_voltages = AS3722_SD2_VSEL_MAX + 1,
 	},
 	{
 		.regulator_id = AS3722_REGULATOR_ID_SD3,
@@ -140,7 +140,7 @@ static const struct as3722_register_mapping as3722_reg_lookup[] = {
 		.sleep_ctrl_mask = AS3722_SD3_EXT_ENABLE_MASK,
 		.control_reg = AS3722_SD23_CONTROL_REG,
 		.mode_mask = AS3722_SD3_MODE_FAST,
-		.n_voltages = AS3722_SD2_VSEL_MAX,
+		.n_voltages = AS3722_SD2_VSEL_MAX + 1,
 	},
 	{
 		.regulator_id = AS3722_REGULATOR_ID_SD4,
@@ -154,7 +154,7 @@ static const struct as3722_register_mapping as3722_reg_lookup[] = {
 		.sleep_ctrl_mask = AS3722_SD4_EXT_ENABLE_MASK,
 		.control_reg = AS3722_SD4_CONTROL_REG,
 		.mode_mask = AS3722_SD4_MODE_FAST,
-		.n_voltages = AS3722_SD2_VSEL_MAX,
+		.n_voltages = AS3722_SD2_VSEL_MAX + 1,
 	},
 	{
 		.regulator_id = AS3722_REGULATOR_ID_SD5,
@@ -168,7 +168,7 @@ static const struct as3722_register_mapping as3722_reg_lookup[] = {
 		.sleep_ctrl_mask = AS3722_SD5_EXT_ENABLE_MASK,
 		.control_reg = AS3722_SD5_CONTROL_REG,
 		.mode_mask = AS3722_SD5_MODE_FAST,
-		.n_voltages = AS3722_SD2_VSEL_MAX,
+		.n_voltages = AS3722_SD2_VSEL_MAX + 1,
 	},
 	{
 		.regulator_id = AS3722_REGULATOR_ID_SD6,
@@ -181,7 +181,7 @@ static const struct as3722_register_mapping as3722_reg_lookup[] = {
 		.sleep_ctrl_mask = AS3722_SD6_EXT_ENABLE_MASK,
 		.control_reg = AS3722_SD6_CONTROL_REG,
 		.mode_mask = AS3722_SD6_MODE_FAST,
-		.n_voltages = AS3722_SD0_VSEL_MAX,
+		.n_voltages = AS3722_SD0_VSEL_MAX + 1,
 	},
 	{
 		.regulator_id = AS3722_REGULATOR_ID_LDO0,
-- 
cgit 


From c70837908dc1b63298125e1b80064c4639d92fd2 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 27 Sep 2013 15:32:53 +0530
Subject: spi: clps711x: Remove redundant label

Remove empty label.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-clps711x.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/spi/spi-clps711x.c b/drivers/spi/spi-clps711x.c
index 5655acf55bfe..1a786834c16d 100644
--- a/drivers/spi/spi-clps711x.c
+++ b/drivers/spi/spi-clps711x.c
@@ -227,7 +227,7 @@ static int spi_clps711x_probe(struct platform_device *pdev)
 	if (ret) {
 		dev_err(&pdev->dev, "Can't request IRQ\n");
 		clk_put(hw->spi_clk);
-		goto clk_out;
+		goto err_out;
 	}
 
 	ret = spi_register_master(master);
@@ -240,7 +240,6 @@ static int spi_clps711x_probe(struct platform_device *pdev)
 
 	dev_err(&pdev->dev, "Failed to register master\n");
 
-clk_out:
 err_out:
 	while (--i >= 0)
 		if (gpio_is_valid(hw->chipselect[i]))
-- 
cgit 


From fb10e4d418c73096ec61d8e80e2af282a5891039 Mon Sep 17 00:00:00 2001
From: Richard Weinberger <richard@nod.at>
Date: Sat, 28 Sep 2013 15:55:10 +0200
Subject: UBI: fix refill_wl_user_pool()

If no free PEBs are available refill_wl_user_pool() must not
return with -ENOSPC immediately.
It has to block till produce_free_peb() produced a free PEB.

Reported-and-Tested-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
---
 drivers/mtd/ubi/wl.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index c95bfb183c62..02317c1c0238 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -599,10 +599,6 @@ static void refill_wl_user_pool(struct ubi_device *ubi)
 	return_unused_pool_pebs(ubi, pool);
 
 	for (pool->size = 0; pool->size < pool->max_size; pool->size++) {
-		if (!ubi->free.rb_node ||
-		   (ubi->free_count - ubi->beb_rsvd_pebs < 1))
-			break;
-
 		pool->pebs[pool->size] = __wl_get_peb(ubi);
 		if (pool->pebs[pool->size] < 0)
 			break;
-- 
cgit 


From f240dca8f2fdf11d52a7bacd867e274c3b21a7d3 Mon Sep 17 00:00:00 2001
From: Richard Weinberger <richard@nod.at>
Date: Sat, 28 Sep 2013 15:55:11 +0200
Subject: UBI: Fix error path in scan_pool()

We have to set "ret", not "err" in case of an error.

Reported-and-tested-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
---
 drivers/mtd/ubi/fastmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c
index f5aa4b02cfa6..9b42add0553c 100644
--- a/drivers/mtd/ubi/fastmap.c
+++ b/drivers/mtd/ubi/fastmap.c
@@ -428,7 +428,7 @@ static int scan_pool(struct ubi_device *ubi, struct ubi_attach_info *ai,
 		if (be32_to_cpu(ech->image_seq) != ubi->image_seq) {
 			ubi_err("bad image seq: 0x%x, expected: 0x%x",
 				be32_to_cpu(ech->image_seq), ubi->image_seq);
-			err = UBI_BAD_FASTMAP;
+			ret = UBI_BAD_FASTMAP;
 			goto out;
 		}
 
-- 
cgit 


From 4b3e0a25aa5518892ec8dbfafdd6a57789aa0c22 Mon Sep 17 00:00:00 2001
From: Richard Weinberger <richard@nod.at>
Date: Sat, 28 Sep 2013 15:55:12 +0200
Subject: UBI: Call scan_all() with correct offset in error case

If we find an invalid fastmap we have to scan from the very beginning.
Otherwise we leak the first 64 PEBs.

Reported-and-tested-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
---
 drivers/mtd/ubi/attach.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/ubi/attach.c b/drivers/mtd/ubi/attach.c
index c071d410488f..03b32b05ab15 100644
--- a/drivers/mtd/ubi/attach.c
+++ b/drivers/mtd/ubi/attach.c
@@ -1417,9 +1417,11 @@ int ubi_attach(struct ubi_device *ubi, int force_scan)
 				ai = alloc_ai("ubi_aeb_slab_cache2");
 				if (!ai)
 					return -ENOMEM;
-			}
 
-			err = scan_all(ubi, ai, UBI_FM_MAX_START);
+				err = scan_all(ubi, ai, 0);
+			} else {
+				err = scan_all(ubi, ai, UBI_FM_MAX_START);
+			}
 		}
 	}
 #else
-- 
cgit 


From c22301ad4fa0f4cf71e9c877d072e6f07a0bf682 Mon Sep 17 00:00:00 2001
From: Richard Genoud <richard.genoud@gmail.com>
Date: Sat, 28 Sep 2013 15:55:13 +0200
Subject: UBI: fastmap: fix backward compatibility with image_seq

Some old UBI implementations (e.g. U-Boot) have not implemented the image
sequence feature.
So, when erase blocks are written, the image sequence in the ec header
is lost (set to zero).
UBI scan_all() takes this case into account (commits
32bc4820287a1a03982979515949e8ea56eac641 and
2eadaad67b2b6bd132eda105128d2d466298b8e3)

But fastmap scan functions (ubi_scan_fastmap() and scan_pool()) didn't.

This patch fixes the issue.

Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
---
 drivers/mtd/ubi/fastmap.c | 22 +++++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c
index 9b42add0553c..05067f522476 100644
--- a/drivers/mtd/ubi/fastmap.c
+++ b/drivers/mtd/ubi/fastmap.c
@@ -407,6 +407,7 @@ static int scan_pool(struct ubi_device *ubi, struct ubi_attach_info *ai,
 	 */
 	for (i = 0; i < pool_size; i++) {
 		int scrub = 0;
+		int image_seq;
 
 		pnum = be32_to_cpu(pebs[i]);
 
@@ -425,7 +426,13 @@ static int scan_pool(struct ubi_device *ubi, struct ubi_attach_info *ai,
 		} else if (ret == UBI_IO_BITFLIPS)
 			scrub = 1;
 
-		if (be32_to_cpu(ech->image_seq) != ubi->image_seq) {
+		/*
+		 * Older UBI implementations have image_seq set to zero, so
+		 * we shouldn't fail if image_seq == 0.
+		 */
+		image_seq = be32_to_cpu(ech->image_seq);
+
+		if (image_seq && (image_seq != ubi->image_seq)) {
 			ubi_err("bad image seq: 0x%x, expected: 0x%x",
 				be32_to_cpu(ech->image_seq), ubi->image_seq);
 			ret = UBI_BAD_FASTMAP;
@@ -923,6 +930,8 @@ int ubi_scan_fastmap(struct ubi_device *ubi, struct ubi_attach_info *ai,
 	}
 
 	for (i = 0; i < used_blocks; i++) {
+		int image_seq;
+
 		pnum = be32_to_cpu(fmsb->block_loc[i]);
 
 		if (ubi_io_is_bad(ubi, pnum)) {
@@ -940,10 +949,17 @@ int ubi_scan_fastmap(struct ubi_device *ubi, struct ubi_attach_info *ai,
 		} else if (ret == UBI_IO_BITFLIPS)
 			fm->to_be_tortured[i] = 1;
 
+		image_seq = be32_to_cpu(ech->image_seq);
 		if (!ubi->image_seq)
-			ubi->image_seq = be32_to_cpu(ech->image_seq);
+			ubi->image_seq = image_seq;
 
-		if (be32_to_cpu(ech->image_seq) != ubi->image_seq) {
+		/*
+		 * Older UBI implementations have image_seq set to zero, so
+		 * we shouldn't fail if image_seq == 0.
+		 */
+		if (image_seq && (image_seq != ubi->image_seq)) {
+			ubi_err("wrong image seq:%d instead of %d",
+				be32_to_cpu(ech->image_seq), ubi->image_seq);
 			ret = UBI_BAD_FASTMAP;
 			goto free_hdr;
 		}
-- 
cgit 


From 55b80c409a1368b8dff3c78943101bccb0ea3aa1 Mon Sep 17 00:00:00 2001
From: Richard Genoud <richard.genoud@gmail.com>
Date: Sat, 28 Sep 2013 15:55:14 +0200
Subject: UBI: simplify image sequence test

The test:
if (!a && b)
  a = b;
can be symplified in:
if (!a)
  a = b;

And there's no need to test if ubi->image_seq is not null, because if it is,
it is set to image_seq.
So, we just test if image_seq is not null.

Signed-off-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
---
 drivers/mtd/ubi/attach.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/ubi/attach.c b/drivers/mtd/ubi/attach.c
index 03b32b05ab15..33bb1f2b63e4 100644
--- a/drivers/mtd/ubi/attach.c
+++ b/drivers/mtd/ubi/attach.c
@@ -900,10 +900,9 @@ static int scan_peb(struct ubi_device *ubi, struct ubi_attach_info *ai,
 		 * number.
 		 */
 		image_seq = be32_to_cpu(ech->image_seq);
-		if (!ubi->image_seq && image_seq)
+		if (!ubi->image_seq)
 			ubi->image_seq = image_seq;
-		if (ubi->image_seq && image_seq &&
-		    ubi->image_seq != image_seq) {
+		if (image_seq && ubi->image_seq != image_seq) {
 			ubi_err("bad image sequence number %d in PEB %d, expected %d",
 				image_seq, pnum, ubi->image_seq);
 			ubi_dump_ec_hdr(ech);
-- 
cgit 


From fe24c6e5f51ec5ea42d432f67618a084047a23ed Mon Sep 17 00:00:00 2001
From: Richard Weinberger <richard@nod.at>
Date: Sat, 28 Sep 2013 15:55:15 +0200
Subject: UBI: Fix memory leak in ubi_attach_fastmap() error path

On error we have to free all three temporary lists.

Reported-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
---
 drivers/mtd/ubi/fastmap.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c
index 05067f522476..4cfc8da27221 100644
--- a/drivers/mtd/ubi/fastmap.c
+++ b/drivers/mtd/ubi/fastmap.c
@@ -841,6 +841,19 @@ static int ubi_attach_fastmap(struct ubi_device *ubi,
 fail_bad:
 	ret = UBI_BAD_FASTMAP;
 fail:
+	list_for_each_entry_safe(tmp_aeb, _tmp_aeb, &used, u.list) {
+		kmem_cache_free(ai->aeb_slab_cache, tmp_aeb);
+		list_del(&tmp_aeb->u.list);
+	}
+	list_for_each_entry_safe(tmp_aeb, _tmp_aeb, &eba_orphans, u.list) {
+		kmem_cache_free(ai->aeb_slab_cache, tmp_aeb);
+		list_del(&tmp_aeb->u.list);
+	}
+	list_for_each_entry_safe(tmp_aeb, _tmp_aeb, &free, u.list) {
+		kmem_cache_free(ai->aeb_slab_cache, tmp_aeb);
+		list_del(&tmp_aeb->u.list);
+	}
+
 	return ret;
 }
 
-- 
cgit 


From ae0d146955665411a6d4cea5e0893429cfc52807 Mon Sep 17 00:00:00 2001
From: Richard Weinberger <richard@nod.at>
Date: Sat, 28 Sep 2013 15:55:16 +0200
Subject: UBI: Add some asserts to ubi_attach_fastmap()

Add more paranioa asserts to make it easier to detect
implementation errors.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
---
 drivers/mtd/ubi/fastmap.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/mtd/ubi/fastmap.c b/drivers/mtd/ubi/fastmap.c
index 4cfc8da27221..ead861307b3c 100644
--- a/drivers/mtd/ubi/fastmap.c
+++ b/drivers/mtd/ubi/fastmap.c
@@ -826,6 +826,10 @@ static int ubi_attach_fastmap(struct ubi_device *ubi,
 	list_for_each_entry_safe(tmp_aeb, _tmp_aeb, &free, u.list)
 		list_move_tail(&tmp_aeb->u.list, &ai->free);
 
+	ubi_assert(list_empty(&used));
+	ubi_assert(list_empty(&eba_orphans));
+	ubi_assert(list_empty(&free));
+
 	/*
 	 * If fastmap is leaking PEBs (must not happen), raise a
 	 * fat warning and fall back to scanning mode.
-- 
cgit 


From 8daaa5f8261bffd2f6217a960f9182d0503a5c44 Mon Sep 17 00:00:00 2001
From: Mike Travis <travis@sgi.com>
Date: Wed, 2 Oct 2013 10:14:18 -0500
Subject: kdb: Add support for external NMI handler to call KGDB/KDB

This patch adds a kgdb_nmicallin() interface that can be used by
external NMI handlers to call the KGDB/KDB handler.  The primary
need for this is for those types of NMI interrupts where all the
CPUs have already received the NMI signal.  Therefore no
send_IPI(NMI) is required, and in fact it will cause a 2nd
unhandled NMI to occur. This generates the "Dazed and Confuzed"
messages.

Since all the CPUs are getting the NMI at roughly the same time,
it's not guaranteed that the first CPU that hits the NMI handler
will manage to enter KGDB and set the dbg_master_lock before the
slaves start entering. The new argument "send_ready" was added
for KGDB to signal the NMI handler to release the slave CPUs for
entry into KGDB.

Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Jason Wessel <jason.wessel@windriver.com>
Reviewed-by: Dimitri Sivanich <sivanich@sgi.com>
Reviewed-by: Hedi Berriche <hedi@sgi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Link: http://lkml.kernel.org/r/20131002151417.928886849@asylum.americas.sgi.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/kdb.h             |  1 +
 include/linux/kgdb.h            |  1 +
 kernel/debug/debug_core.c       | 32 ++++++++++++++++++++++++++++++--
 kernel/debug/debug_core.h       |  3 +++
 kernel/debug/kdb/kdb_debugger.c |  5 ++++-
 kernel/debug/kdb/kdb_main.c     |  3 +++
 6 files changed, 42 insertions(+), 3 deletions(-)

diff --git a/include/linux/kdb.h b/include/linux/kdb.h
index 7f6fe6e015bc..290db1269c4c 100644
--- a/include/linux/kdb.h
+++ b/include/linux/kdb.h
@@ -109,6 +109,7 @@ typedef enum {
 	KDB_REASON_RECURSE,	/* Recursive entry to kdb;
 				 * regs probably valid */
 	KDB_REASON_SSTEP,	/* Single Step trap. - regs valid */
+	KDB_REASON_SYSTEM_NMI,	/* In NMI due to SYSTEM cmd; regs valid */
 } kdb_reason_t;
 
 extern int kdb_trap_printk;
diff --git a/include/linux/kgdb.h b/include/linux/kgdb.h
index c6e091bf39a5..dfb4f2ffdaa2 100644
--- a/include/linux/kgdb.h
+++ b/include/linux/kgdb.h
@@ -310,6 +310,7 @@ extern int
 kgdb_handle_exception(int ex_vector, int signo, int err_code,
 		      struct pt_regs *regs);
 extern int kgdb_nmicallback(int cpu, void *regs);
+extern int kgdb_nmicallin(int cpu, int trapnr, void *regs, atomic_t *snd_rdy);
 extern void gdbstub_exit(int status);
 
 extern int			kgdb_single_step;
diff --git a/kernel/debug/debug_core.c b/kernel/debug/debug_core.c
index 0506d447aed2..7d2f35e5df2f 100644
--- a/kernel/debug/debug_core.c
+++ b/kernel/debug/debug_core.c
@@ -575,8 +575,12 @@ return_normal:
 		raw_spin_lock(&dbg_slave_lock);
 
 #ifdef CONFIG_SMP
+	/* If send_ready set, slaves are already waiting */
+	if (ks->send_ready)
+		atomic_set(ks->send_ready, 1);
+
 	/* Signal the other CPUs to enter kgdb_wait() */
-	if ((!kgdb_single_step) && kgdb_do_roundup)
+	else if ((!kgdb_single_step) && kgdb_do_roundup)
 		kgdb_roundup_cpus(flags);
 #endif
 
@@ -678,11 +682,11 @@ kgdb_handle_exception(int evector, int signo, int ecode, struct pt_regs *regs)
 	if (arch_kgdb_ops.enable_nmi)
 		arch_kgdb_ops.enable_nmi(0);
 
+	memset(ks, 0, sizeof(struct kgdb_state));
 	ks->cpu			= raw_smp_processor_id();
 	ks->ex_vector		= evector;
 	ks->signo		= signo;
 	ks->err_code		= ecode;
-	ks->kgdb_usethreadid	= 0;
 	ks->linux_regs		= regs;
 
 	if (kgdb_reenter_check(ks))
@@ -732,6 +736,30 @@ int kgdb_nmicallback(int cpu, void *regs)
 	return 1;
 }
 
+int kgdb_nmicallin(int cpu, int trapnr, void *regs, atomic_t *send_ready)
+{
+#ifdef CONFIG_SMP
+	if (!kgdb_io_ready(0) || !send_ready)
+		return 1;
+
+	if (kgdb_info[cpu].enter_kgdb == 0) {
+		struct kgdb_state kgdb_var;
+		struct kgdb_state *ks = &kgdb_var;
+
+		memset(ks, 0, sizeof(struct kgdb_state));
+		ks->cpu			= cpu;
+		ks->ex_vector		= trapnr;
+		ks->signo		= SIGTRAP;
+		ks->err_code		= KGDB_KDB_REASON_SYSTEM_NMI;
+		ks->linux_regs		= regs;
+		ks->send_ready		= send_ready;
+		kgdb_cpu_enter(ks, regs, DCPU_WANT_MASTER);
+		return 0;
+	}
+#endif
+	return 1;
+}
+
 static void kgdb_console_write(struct console *co, const char *s,
    unsigned count)
 {
diff --git a/kernel/debug/debug_core.h b/kernel/debug/debug_core.h
index 2235967e78b0..572aa4f5677c 100644
--- a/kernel/debug/debug_core.h
+++ b/kernel/debug/debug_core.h
@@ -26,6 +26,7 @@ struct kgdb_state {
 	unsigned long		threadid;
 	long			kgdb_usethreadid;
 	struct pt_regs		*linux_regs;
+	atomic_t		*send_ready;
 };
 
 /* Exception state values */
@@ -74,11 +75,13 @@ extern int kdb_stub(struct kgdb_state *ks);
 extern int kdb_parse(const char *cmdstr);
 extern int kdb_common_init_state(struct kgdb_state *ks);
 extern int kdb_common_deinit_state(void);
+#define KGDB_KDB_REASON_SYSTEM_NMI KDB_REASON_SYSTEM_NMI
 #else /* ! CONFIG_KGDB_KDB */
 static inline int kdb_stub(struct kgdb_state *ks)
 {
 	return DBG_PASS_EVENT;
 }
+#define KGDB_KDB_REASON_SYSTEM_NMI 0
 #endif /* CONFIG_KGDB_KDB */
 
 #endif /* _DEBUG_CORE_H_ */
diff --git a/kernel/debug/kdb/kdb_debugger.c b/kernel/debug/kdb/kdb_debugger.c
index 328d18ef31e4..8859ca34dcfe 100644
--- a/kernel/debug/kdb/kdb_debugger.c
+++ b/kernel/debug/kdb/kdb_debugger.c
@@ -69,7 +69,10 @@ int kdb_stub(struct kgdb_state *ks)
 	if (atomic_read(&kgdb_setting_breakpoint))
 		reason = KDB_REASON_KEYBOARD;
 
-	if (in_nmi())
+	if (ks->err_code == KDB_REASON_SYSTEM_NMI && ks->signo == SIGTRAP)
+		reason = KDB_REASON_SYSTEM_NMI;
+
+	else if (in_nmi())
 		reason = KDB_REASON_NMI;
 
 	for (i = 0, bp = kdb_breakpoints; i < KDB_MAXBPT; i++, bp++) {
diff --git a/kernel/debug/kdb/kdb_main.c b/kernel/debug/kdb/kdb_main.c
index 00eb8f7fbf41..0b097c8a1e50 100644
--- a/kernel/debug/kdb/kdb_main.c
+++ b/kernel/debug/kdb/kdb_main.c
@@ -1200,6 +1200,9 @@ static int kdb_local(kdb_reason_t reason, int error, struct pt_regs *regs,
 			   instruction_pointer(regs));
 		kdb_dumpregs(regs);
 		break;
+	case KDB_REASON_SYSTEM_NMI:
+		kdb_printf("due to System NonMaskable Interrupt\n");
+		break;
 	case KDB_REASON_NMI:
 		kdb_printf("due to NonMaskable Interrupt @ "
 			   kdb_machreg_fmt "\n",
-- 
cgit 


From e379ea82dd53a5cc8e3ac0b7899a8012006c712c Mon Sep 17 00:00:00 2001
From: Mike Travis <travis@sgi.com>
Date: Wed, 2 Oct 2013 10:14:19 -0500
Subject: x86/UV: Add call to KGDB/KDB from NMI handler

This patch restores the capability to enter KDB (and KGDB) from
the UV NMI handler.  This is needed because the UV system
console is not capable of sending the 'break' signal to the
serial console port.  It is also useful when the kernel is hung
in such a way that it isn't responding to normal external I/O,
so sending 'g' to sysreq-trigger does not work either.

Another benefit of the external NMI command is that all the cpus
receive the NMI signal at roughly the same time so they are more
closely aligned timewise.

It utilizes the newly added kgdb_nmicallin function to gain
entry to KGDB/KDB by the master.  The slaves still enter via the
standard kgdb_nmicallback function.  It also uses the new
'send_ready' pointer to tell KGDB/KDB to signal the slaves when
to proceed into the KGDB slave loop.

It is enabled when the nmi action is set to "kdb" and the kernel
is built with CONFIG_KDB enabled.  Note that if kgdb is
connected that interface will be used instead.

Signed-off-by: Mike Travis <travis@sgi.com>
Reviewed-by: Dimitri Sivanich <sivanich@sgi.com>
Reviewed-by: Hedi Berriche <hedi@sgi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Jason Wessel <jason.wessel@windriver.com>
Link: http://lkml.kernel.org/r/20131002151418.089692683@asylum.americas.sgi.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/platform/uv/uv_nmi.c | 47 ++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 46 insertions(+), 1 deletion(-)

diff --git a/arch/x86/platform/uv/uv_nmi.c b/arch/x86/platform/uv/uv_nmi.c
index 9126dfb6dbfc..9b8ac60ad8db 100644
--- a/arch/x86/platform/uv/uv_nmi.c
+++ b/arch/x86/platform/uv/uv_nmi.c
@@ -21,7 +21,9 @@
 
 #include <linux/cpu.h>
 #include <linux/delay.h>
+#include <linux/kdb.h>
 #include <linux/kexec.h>
+#include <linux/kgdb.h>
 #include <linux/module.h>
 #include <linux/nmi.h>
 #include <linux/sched.h>
@@ -32,6 +34,7 @@
 #include <asm/kdebug.h>
 #include <asm/local64.h>
 #include <asm/nmi.h>
+#include <asm/traps.h>
 #include <asm/uv/uv.h>
 #include <asm/uv/uv_hub.h>
 #include <asm/uv/uv_mmrs.h>
@@ -153,8 +156,9 @@ module_param_named(retry_count, uv_nmi_retry_count, int, 0644);
  *  "dump"	- dump process stack for each cpu
  *  "ips"	- dump IP info for each cpu
  *  "kdump"	- do crash dump
+ *  "kdb"	- enter KDB/KGDB (default)
  */
-static char uv_nmi_action[8] = "dump";
+static char uv_nmi_action[8] = "kdb";
 module_param_string(action, uv_nmi_action, sizeof(uv_nmi_action), 0644);
 
 static inline bool uv_nmi_action_is(const char *action)
@@ -540,6 +544,43 @@ static inline void uv_nmi_kdump(int cpu, int master, struct pt_regs *regs)
 }
 #endif /* !CONFIG_KEXEC */
 
+#ifdef CONFIG_KGDB_KDB
+/* Call KDB from NMI handler */
+static void uv_call_kdb(int cpu, struct pt_regs *regs, int master)
+{
+	int ret;
+
+	if (master) {
+		/* call KGDB NMI handler as MASTER */
+		ret = kgdb_nmicallin(cpu, X86_TRAP_NMI, regs,
+					&uv_nmi_slave_continue);
+		if (ret) {
+			pr_alert("KDB returned error, is kgdboc set?\n");
+			atomic_set(&uv_nmi_slave_continue, SLAVE_EXIT);
+		}
+	} else {
+		/* wait for KGDB signal that it's ready for slaves to enter */
+		int sig;
+
+		do {
+			cpu_relax();
+			sig = atomic_read(&uv_nmi_slave_continue);
+		} while (!sig);
+
+		/* call KGDB as slave */
+		if (sig == SLAVE_CONTINUE)
+			kgdb_nmicallback(cpu, regs);
+	}
+	uv_nmi_sync_exit(master);
+}
+
+#else /* !CONFIG_KGDB_KDB */
+static inline void uv_call_kdb(int cpu, struct pt_regs *regs, int master)
+{
+	pr_err("UV: NMI error: KGDB/KDB is not enabled in this kernel\n");
+}
+#endif /* !CONFIG_KGDB_KDB */
+
 /*
  * UV NMI handler
  */
@@ -576,6 +617,10 @@ int uv_handle_nmi(unsigned int reason, struct pt_regs *regs)
 	if (uv_nmi_action_is("ips") || uv_nmi_action_is("dump"))
 		uv_nmi_dump_state(cpu, regs, master);
 
+	/* Call KDB if enabled */
+	else if (uv_nmi_action_is("kdb"))
+		uv_call_kdb(cpu, regs, master);
+
 	/* Clear per_cpu "in nmi" flag */
 	atomic_set(&uv_cpu_nmi.state, UV_NMI_STATE_OUT);
 
-- 
cgit 


From 2fcd9dc3114506c82744c581e0a4e7fcb5b28f08 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 2 Sep 2013 05:06:10 -0300
Subject: [media] davinci: vpif_capture: fix error return code in vpif_probe()

Fix to return -ENODEV in the subdevice register error handling.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/davinci/vpif_capture.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c
index 1089834a4efe..52ac5e6c8625 100644
--- a/drivers/media/platform/davinci/vpif_capture.c
+++ b/drivers/media/platform/davinci/vpif_capture.c
@@ -2154,7 +2154,7 @@ static __init int vpif_probe(struct platform_device *pdev)
 
 			if (!vpif_obj.sd[i]) {
 				vpif_err("Error registering v4l2 subdevice\n");
-				err = -ENOMEM;
+				err = -ENODEV;
 				goto probe_subdev_out;
 			}
 			v4l2_info(&vpif_obj.v4l2_dev,
-- 
cgit 


From d06d3ea78350ffcf773073824a02c2abcb5a2da2 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Wed, 4 Sep 2013 22:31:15 -0300
Subject: [media] lirc_bt829: Fix physical address type

Use phys_addr_t and log format %pa.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/staging/media/lirc/lirc_bt829.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/media/lirc/lirc_bt829.c b/drivers/staging/media/lirc/lirc_bt829.c
index fa31ee7dd6a9..9c7be5528d6d 100644
--- a/drivers/staging/media/lirc/lirc_bt829.c
+++ b/drivers/staging/media/lirc/lirc_bt829.c
@@ -63,7 +63,7 @@ static bool debug;
 	} while (0)
 
 static int atir_minor;
-static unsigned long pci_addr_phys;
+static phys_addr_t pci_addr_phys;
 static unsigned char *pci_addr_lin;
 
 static struct lirc_driver atir_driver;
@@ -78,8 +78,7 @@ static struct pci_dev *do_pci_probe(void)
 		pci_addr_phys = 0;
 		if (my_dev->resource[0].flags & IORESOURCE_MEM) {
 			pci_addr_phys = my_dev->resource[0].start;
-			pr_info("memory at 0x%08X\n",
-			       (unsigned int)pci_addr_phys);
+			pr_info("memory at %pa\n", &pci_addr_phys);
 		}
 		if (pci_addr_phys == 0) {
 			pr_err("no memory resource ?\n");
-- 
cgit 


From fd39abee9e88276251f31f6c3cbefadb2d25486f Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Wed, 4 Sep 2013 22:31:59 -0300
Subject: [media] lirc_bt829: Fix iomap and PCI device leaks

We must call iounmap() and pci_dev_put() when removed and on
the probe failure path.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/staging/media/lirc/lirc_bt829.c | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/media/lirc/lirc_bt829.c b/drivers/staging/media/lirc/lirc_bt829.c
index 9c7be5528d6d..a61d233f38ca 100644
--- a/drivers/staging/media/lirc/lirc_bt829.c
+++ b/drivers/staging/media/lirc/lirc_bt829.c
@@ -82,6 +82,7 @@ static struct pci_dev *do_pci_probe(void)
 		}
 		if (pci_addr_phys == 0) {
 			pr_err("no memory resource ?\n");
+			pci_dev_put(my_dev);
 			return NULL;
 		}
 	} else {
@@ -119,13 +120,16 @@ static void atir_set_use_dec(void *data)
 int init_module(void)
 {
 	struct pci_dev *pdev;
+	int rc;
 
 	pdev = do_pci_probe();
 	if (pdev == NULL)
 		return -ENODEV;
 
-	if (!atir_init_start())
-		return -ENODEV;
+	if (!atir_init_start()) {
+		rc = -ENODEV;
+		goto err_put_dev;
+	}
 
 	strcpy(atir_driver.name, "ATIR");
 	atir_driver.minor       = -1;
@@ -141,17 +145,28 @@ int init_module(void)
 	atir_minor = lirc_register_driver(&atir_driver);
 	if (atir_minor < 0) {
 		pr_err("failed to register driver!\n");
-		return atir_minor;
+		rc = atir_minor;
+		goto err_unmap;
 	}
 	dprintk("driver is registered on minor %d\n", atir_minor);
 
 	return 0;
+
+err_unmap:
+	iounmap(pci_addr_lin);
+err_put_dev:
+	pci_dev_put(pdev);
+	return rc;
 }
 
 
 void cleanup_module(void)
 {
+	struct pci_dev *pdev = to_pci_dev(atir_driver.dev);
+
 	lirc_unregister_driver(atir_minor);
+	iounmap(pci_addr_lin);
+	pci_dev_put(pdev);
 }
 
 
-- 
cgit 


From cfe1b7a703a53318fcecf71e29a516d8fd72eb78 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Wed, 4 Sep 2013 22:32:19 -0300
Subject: [media] lirc_bt829: Enable and disable device

We must not assume that the PCI device is already enabled.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/staging/media/lirc/lirc_bt829.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/media/lirc/lirc_bt829.c b/drivers/staging/media/lirc/lirc_bt829.c
index a61d233f38ca..623f10e2cdaa 100644
--- a/drivers/staging/media/lirc/lirc_bt829.c
+++ b/drivers/staging/media/lirc/lirc_bt829.c
@@ -126,9 +126,13 @@ int init_module(void)
 	if (pdev == NULL)
 		return -ENODEV;
 
+	rc = pci_enable_device(pdev);
+	if (rc)
+		goto err_put_dev;
+
 	if (!atir_init_start()) {
 		rc = -ENODEV;
-		goto err_put_dev;
+		goto err_disable;
 	}
 
 	strcpy(atir_driver.name, "ATIR");
@@ -154,6 +158,8 @@ int init_module(void)
 
 err_unmap:
 	iounmap(pci_addr_lin);
+err_disable:
+	pci_disable_device(pdev);
 err_put_dev:
 	pci_dev_put(pdev);
 	return rc;
@@ -166,6 +172,7 @@ void cleanup_module(void)
 
 	lirc_unregister_driver(atir_minor);
 	iounmap(pci_addr_lin);
+	pci_disable_device(pdev);
 	pci_dev_put(pdev);
 }
 
-- 
cgit 


From cfd66ab72927dd14045c3650a01b7d69c37ac6fb Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Wed, 4 Sep 2013 22:32:34 -0300
Subject: [media] lirc_bt829: Note in TODO why it can't be a normal PCI driver
 yet

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/staging/media/lirc/TODO | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/staging/media/lirc/TODO b/drivers/staging/media/lirc/TODO
index b6cb593f55c6..cbea5d84fed3 100644
--- a/drivers/staging/media/lirc/TODO
+++ b/drivers/staging/media/lirc/TODO
@@ -2,6 +2,11 @@
   (see drivers/media/IR/mceusb.c vs. lirc_mceusb.c in lirc cvs for an
   example of a previously completed port).
 
+- lirc_bt829 uses registers on a Mach64 VT, which has a separate kernel
+  framebuffer driver (atyfb) and userland X driver (mach64).  It can't
+  simply be converted to a normal PCI driver, but ideally it should be
+  coordinated with the other drivers.
+
 Please send patches to:
 Jarod Wilson <jarod@wilsonet.com>
 Greg Kroah-Hartman <greg@kroah.com>
-- 
cgit 


From 66bf8fa2aca2ec215ce3f5bb0fdffe1a79192b57 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Fri, 6 Sep 2013 08:43:56 -0300
Subject: [media] media/v4l2: VIDEO_RENESAS_VSP1 should depend on HAS_DMA
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

If NO_DMA=y:
warning: (... && VIDEO_RENESAS_VSP1 && ...) selects VIDEOBUF2_DMA_CONTIG which has unmet direct dependencies (MEDIA_SUPPORT && HAS_DMA)
drivers/media/v4l2-core/videobuf2-dma-contig.c: In function ‘vb2_dc_mmap’:
drivers/media/v4l2-core/videobuf2-dma-contig.c:202: error: implicit declaration of function ‘dma_mmap_coherent’
drivers/media/v4l2-core/videobuf2-dma-contig.c: In function ‘vb2_dc_get_base_sgt’:
drivers/media/v4l2-core/videobuf2-dma-contig.c:385: error: implicit declaration of function ‘dma_get_sgtable’
make[7]: *** [drivers/media/v4l2-core/videobuf2-dma-contig.o] Error 1
VIDEO_RENESAS_VSP1 (which doesn't have a platform dependency) selects
VIDEOBUF2_DMA_CONTIG, but the latter depends on HAS_DMA.
Make VIDEO_RENESAS_VSP1 depend on HAS_DMA to fix this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index c7caf94621b4..29acc2d2aee6 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -212,7 +212,7 @@ config VIDEO_SH_VEU
 
 config VIDEO_RENESAS_VSP1
 	tristate "Renesas VSP1 Video Processing Engine"
-	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API
+	depends on VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && HAS_DMA
 	select VIDEOBUF2_DMA_CONTIG
 	---help---
 	  This is a V4L2 driver for the Renesas VSP1 video processing engine.
-- 
cgit 


From d8c279a00ba42f7face4bbf959c31d24e5e5baa4 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 8 Sep 2013 23:30:11 -0300
Subject: [media] davinci: remove deprecated IRQF_DISABLED

This patch proposes to remove the IRQF_DISABLED flag from
davinci media platform drivers.
It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/davinci/vpbe_display.c | 2 +-
 drivers/media/platform/davinci/vpfe_capture.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/davinci/vpbe_display.c b/drivers/media/platform/davinci/vpbe_display.c
index 04609cc6eba7..eac472b5ae83 100644
--- a/drivers/media/platform/davinci/vpbe_display.c
+++ b/drivers/media/platform/davinci/vpbe_display.c
@@ -1785,7 +1785,7 @@ static int vpbe_display_probe(struct platform_device *pdev)
 	}
 
 	irq = res->start;
-	err = devm_request_irq(&pdev->dev, irq, venc_isr, IRQF_DISABLED,
+	err = devm_request_irq(&pdev->dev, irq, venc_isr, 0,
 			       VPBE_DISPLAY_DRIVER, disp_dev);
 	if (err) {
 		v4l2_err(&disp_dev->vpbe_dev->v4l2_dev,
diff --git a/drivers/media/platform/davinci/vpfe_capture.c b/drivers/media/platform/davinci/vpfe_capture.c
index 93609091cb23..d762246eabf5 100644
--- a/drivers/media/platform/davinci/vpfe_capture.c
+++ b/drivers/media/platform/davinci/vpfe_capture.c
@@ -688,7 +688,7 @@ static int vpfe_attach_irq(struct vpfe_device *vpfe_dev)
 	frame_format = ccdc_dev->hw_ops.get_frame_format();
 	if (frame_format == CCDC_FRMFMT_PROGRESSIVE) {
 		return request_irq(vpfe_dev->ccdc_irq1, vdint1_isr,
-				    IRQF_DISABLED, "vpfe_capture1",
+				    0, "vpfe_capture1",
 				    vpfe_dev);
 	}
 	return 0;
@@ -1863,7 +1863,7 @@ static int vpfe_probe(struct platform_device *pdev)
 	}
 	vpfe_dev->ccdc_irq1 = res1->start;
 
-	ret = request_irq(vpfe_dev->ccdc_irq0, vpfe_isr, IRQF_DISABLED,
+	ret = request_irq(vpfe_dev->ccdc_irq0, vpfe_isr, 0,
 			  "vpfe_capture0", vpfe_dev);
 
 	if (0 != ret) {
-- 
cgit 


From 8510ae4e57b74f5da4a2d98508689ede569c8221 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 11 Sep 2013 10:07:58 -0300
Subject: [media] adv7511: fix error return code in adv7511_probe()

Fix to return -ENOMEM in the new i2c client and create workqueue error
handling case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/i2c/adv7511.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/media/i2c/adv7511.c b/drivers/media/i2c/adv7511.c
index 7a576097471f..b2a11f6cb894 100644
--- a/drivers/media/i2c/adv7511.c
+++ b/drivers/media/i2c/adv7511.c
@@ -1126,6 +1126,7 @@ static int adv7511_probe(struct i2c_client *client, const struct i2c_device_id *
 	state->i2c_edid = i2c_new_dummy(client->adapter, state->i2c_edid_addr >> 1);
 	if (state->i2c_edid == NULL) {
 		v4l2_err(sd, "failed to register edid i2c client\n");
+		err = -ENOMEM;
 		goto err_entity;
 	}
 
@@ -1133,6 +1134,7 @@ static int adv7511_probe(struct i2c_client *client, const struct i2c_device_id *
 	state->work_queue = create_singlethread_workqueue(sd->name);
 	if (state->work_queue == NULL) {
 		v4l2_err(sd, "could not create workqueue\n");
+		err = -ENOMEM;
 		goto err_unreg_cec;
 	}
 
-- 
cgit 


From de26804b60d460a5ad13400d86c367ed16c6393d Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Thu, 5 Sep 2013 09:29:18 +0200
Subject: ARM: OMAP2+: throw the die id into the entropy pool

At least eight bytes of this number are totally unique for the device
it seems, so this is a perfect candidate for feeding the entropy
pool. One byte more or less of constants does not matter so feed in
the entire OID struct.

This fixes the issue of similar devices initializing to the
same state initially.

Further registers could be added too, such as OMAP4
CONTROL_STD_FUSE_OPP* and CONTROL_DPLL_NWELL_TRIM* registers,
but those vary based on the SoC generation.

Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Paul Walmsley <paul@pwsan.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Reviewed-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
[tony@atomide.com: updated comments per mailing list discussion]
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/id.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 0289adcb6efb..ef32d11c4bca 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -18,6 +18,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/io.h>
+#include <linux/random.h>
 #include <linux/slab.h>
 
 #ifdef CONFIG_SOC_BUS
@@ -130,6 +131,17 @@ void omap_get_die_id(struct omap_die_id *odi)
 	odi->id_3 = read_tap_reg(OMAP_TAP_DIE_ID_3);
 }
 
+static int __init omap_feed_randpool(void)
+{
+	struct omap_die_id odi;
+
+	/* Throw the die ID into the entropy pool at boot */
+	omap_get_die_id(&odi);
+	add_device_randomness(&odi, sizeof(odi));
+	return 0;
+}
+omap_device_initcall(omap_feed_randpool);
+
 void __init omap2xxx_check_revision(void)
 {
 	int i, j;
-- 
cgit 


From 5080546682bae3d32734b18e281091684f0ebbe4 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 2 Oct 2013 04:29:50 -0700
Subject: inet: consolidate INET_TW_MATCH

TCP listener refactoring, part 2 :

We can use a generic lookup, sockets being in whatever state, if
we are sure all relevant fields are at the same place in all socket
types (ESTABLISH, TIME_WAIT, SYN_RECV)

This patch removes these macros :

 inet_addrpair, inet_addrpair, tw_addrpair, tw_portpair

And adds :

 sk_portpair, sk_addrpair, sk_daddr, sk_rcv_saddr

Then, INET_TW_MATCH() is really the same than INET_MATCH()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/ipv6.h             |  4 ++--
 include/net/inet_hashtables.h    | 26 ++++++++------------------
 include/net/inet_sock.h          |  2 --
 include/net/inet_timewait_sock.h |  8 --------
 include/net/sock.h               |  4 ++++
 net/ipv4/inet_connection_sock.c  | 11 +++++------
 net/ipv6/udp.c                   |  6 ++----
 7 files changed, 21 insertions(+), 40 deletions(-)

diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 28ea38439313..b7f1f3bb346d 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -370,7 +370,7 @@ static inline struct raw6_sock *raw6_sk(const struct sock *sk)
 #endif /* IS_ENABLED(CONFIG_IPV6) */
 
 #define INET6_MATCH(__sk, __net, __saddr, __daddr, __ports, __dif)	\
-	((inet_sk(__sk)->inet_portpair == (__ports))		&&	\
+	(((__sk)->sk_portpair == (__ports))			&&	\
 	 ((__sk)->sk_family == AF_INET6)			&&	\
 	 ipv6_addr_equal(&inet6_sk(__sk)->daddr, (__saddr))	&&	\
 	 ipv6_addr_equal(&inet6_sk(__sk)->rcv_saddr, (__daddr))	&&	\
@@ -379,7 +379,7 @@ static inline struct raw6_sock *raw6_sk(const struct sock *sk)
 	 net_eq(sock_net(__sk), (__net)))
 
 #define INET6_TW_MATCH(__sk, __net, __saddr, __daddr, __ports, __dif)	   \
-	((inet_twsk(__sk)->tw_portpair == (__ports))			&& \
+	(((__sk)->sk_portpair == (__ports))				&& \
 	 ((__sk)->sk_family == AF_INET6)				&& \
 	 ipv6_addr_equal(&inet6_twsk(__sk)->tw_v6_daddr, (__saddr))	&& \
 	 ipv6_addr_equal(&inet6_twsk(__sk)->tw_v6_rcv_saddr, (__daddr)) && \
diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index 594dfeead70f..10d6838378c3 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -302,35 +302,25 @@ static inline struct sock *inet_lookup_listener(struct net *net,
 				   ((__force __u64)(__be32)(__saddr)));
 #endif /* __BIG_ENDIAN */
 #define INET_MATCH(__sk, __net, __cookie, __saddr, __daddr, __ports, __dif)	\
-	((inet_sk(__sk)->inet_portpair == (__ports))		&&	\
-	 (inet_sk(__sk)->inet_addrpair == (__cookie))		&&	\
+	(((__sk)->sk_portpair == (__ports))			&&	\
+	 ((__sk)->sk_addrpair == (__cookie))			&&	\
 	 (!(__sk)->sk_bound_dev_if	||				\
 	   ((__sk)->sk_bound_dev_if == (__dif))) 		&& 	\
 	 net_eq(sock_net(__sk), (__net)))
-#define INET_TW_MATCH(__sk, __net, __cookie, __saddr, __daddr, __ports, __dif)\
-	((inet_twsk(__sk)->tw_portpair == (__ports))	&&		\
-	 (inet_twsk(__sk)->tw_addrpair == (__cookie))	&&		\
-	 (!(__sk)->sk_bound_dev_if	||				\
-	   ((__sk)->sk_bound_dev_if == (__dif)))	&&		\
-	 net_eq(sock_net(__sk), (__net)))
 #else /* 32-bit arch */
 #define INET_ADDR_COOKIE(__name, __saddr, __daddr)
 #define INET_MATCH(__sk, __net, __cookie, __saddr, __daddr, __ports, __dif) \
-	((inet_sk(__sk)->inet_portpair == (__ports))	&&		\
-	 (inet_sk(__sk)->inet_daddr	== (__saddr))	&&		\
-	 (inet_sk(__sk)->inet_rcv_saddr	== (__daddr))	&&		\
-	 (!(__sk)->sk_bound_dev_if	||				\
-	   ((__sk)->sk_bound_dev_if == (__dif))) 	&&		\
-	 net_eq(sock_net(__sk), (__net)))
-#define INET_TW_MATCH(__sk, __net, __cookie, __saddr, __daddr, __ports, __dif) \
-	((inet_twsk(__sk)->tw_portpair == (__ports))	&&		\
-	 (inet_twsk(__sk)->tw_daddr	== (__saddr))	&&		\
-	 (inet_twsk(__sk)->tw_rcv_saddr	== (__daddr))	&&		\
+	(((__sk)->sk_portpair == (__ports))		&&		\
+	 ((__sk)->sk_daddr	== (__saddr))		&&		\
+	 ((__sk)->sk_rcv_saddr	== (__daddr))		&&		\
 	 (!(__sk)->sk_bound_dev_if	||				\
 	   ((__sk)->sk_bound_dev_if == (__dif))) 	&&		\
 	 net_eq(sock_net(__sk), (__net)))
 #endif /* 64-bit arch */
 
+#define INET_TW_MATCH(__sk, __net, __cookie, __saddr, __daddr, __ports, __dif)\
+	INET_MATCH(__sk, __net, __cookie, __saddr, __daddr, __ports, __dif)
+
 /*
  * Sockets in TCP_CLOSE state are _always_ taken out of the hash, so we need
  * not check it for lookups anymore, thanks Alexey. -DaveM
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index f3141773c14d..6d9a7e6eb5a4 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -146,10 +146,8 @@ struct inet_sock {
 	/* Socket demultiplex comparisons on incoming packets. */
 #define inet_daddr		sk.__sk_common.skc_daddr
 #define inet_rcv_saddr		sk.__sk_common.skc_rcv_saddr
-#define inet_addrpair		sk.__sk_common.skc_addrpair
 #define inet_dport		sk.__sk_common.skc_dport
 #define inet_num		sk.__sk_common.skc_num
-#define inet_portpair		sk.__sk_common.skc_portpair
 
 	__be32			inet_saddr;
 	__s16			uc_ttl;
diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h
index 828200ab1125..48fd3561722c 100644
--- a/include/net/inet_timewait_sock.h
+++ b/include/net/inet_timewait_sock.h
@@ -112,10 +112,8 @@ struct inet_timewait_sock {
 #define tw_net			__tw_common.skc_net
 #define tw_daddr        	__tw_common.skc_daddr
 #define tw_rcv_saddr    	__tw_common.skc_rcv_saddr
-#define tw_addrpair		__tw_common.skc_addrpair
 #define tw_dport		__tw_common.skc_dport
 #define tw_num			__tw_common.skc_num
-#define tw_portpair		__tw_common.skc_portpair
 
 	int			tw_timeout;
 	volatile unsigned char	tw_substate;
@@ -189,12 +187,6 @@ static inline struct inet_timewait_sock *inet_twsk(const struct sock *sk)
 	return (struct inet_timewait_sock *)sk;
 }
 
-static inline __be32 sk_rcv_saddr(const struct sock *sk)
-{
-/* both inet_sk() and inet_twsk() store rcv_saddr in skc_rcv_saddr */
-	return sk->__sk_common.skc_rcv_saddr;
-}
-
 void inet_twsk_put(struct inet_timewait_sock *tw);
 
 int inet_twsk_unhash(struct inet_timewait_sock *tw);
diff --git a/include/net/sock.h b/include/net/sock.h
index f0a44cc1ff9d..e3bf213be625 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -300,6 +300,10 @@ struct sock {
 #define sk_dontcopy_begin	__sk_common.skc_dontcopy_begin
 #define sk_dontcopy_end		__sk_common.skc_dontcopy_end
 #define sk_hash			__sk_common.skc_hash
+#define sk_portpair		__sk_common.skc_portpair
+#define sk_addrpair		__sk_common.skc_addrpair
+#define sk_daddr		__sk_common.skc_daddr
+#define sk_rcv_saddr		__sk_common.skc_rcv_saddr
 #define sk_family		__sk_common.skc_family
 #define sk_state		__sk_common.skc_state
 #define sk_reuse		__sk_common.skc_reuse
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 7ac7aa11130e..56e82a4027b4 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -71,17 +71,16 @@ int inet_csk_bind_conflict(const struct sock *sk,
 			    (!reuseport || !sk2->sk_reuseport ||
 			    (sk2->sk_state != TCP_TIME_WAIT &&
 			     !uid_eq(uid, sock_i_uid(sk2))))) {
-				const __be32 sk2_rcv_saddr = sk_rcv_saddr(sk2);
-				if (!sk2_rcv_saddr || !sk_rcv_saddr(sk) ||
-				    sk2_rcv_saddr == sk_rcv_saddr(sk))
+
+				if (!sk2->sk_rcv_saddr || !sk->sk_rcv_saddr ||
+				    sk2->sk_rcv_saddr == sk->sk_rcv_saddr)
 					break;
 			}
 			if (!relax && reuse && sk2->sk_reuse &&
 			    sk2->sk_state != TCP_LISTEN) {
-				const __be32 sk2_rcv_saddr = sk_rcv_saddr(sk2);
 
-				if (!sk2_rcv_saddr || !sk_rcv_saddr(sk) ||
-				    sk2_rcv_saddr == sk_rcv_saddr(sk))
+				if (!sk2->sk_rcv_saddr || !sk->sk_rcv_saddr ||
+				    sk2->sk_rcv_saddr == sk->sk_rcv_saddr)
 					break;
 			}
 		}
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 72b7eaaf3ca0..8119791e8a95 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -57,8 +57,6 @@ int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
 {
 	const struct in6_addr *sk_rcv_saddr6 = &inet6_sk(sk)->rcv_saddr;
 	const struct in6_addr *sk2_rcv_saddr6 = inet6_rcv_saddr(sk2);
-	__be32 sk1_rcv_saddr = sk_rcv_saddr(sk);
-	__be32 sk2_rcv_saddr = sk_rcv_saddr(sk2);
 	int sk_ipv6only = ipv6_only_sock(sk);
 	int sk2_ipv6only = inet_v6_ipv6only(sk2);
 	int addr_type = ipv6_addr_type(sk_rcv_saddr6);
@@ -67,8 +65,8 @@ int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
 	/* if both are mapped, treat as IPv4 */
 	if (addr_type == IPV6_ADDR_MAPPED && addr_type2 == IPV6_ADDR_MAPPED)
 		return (!sk2_ipv6only &&
-			(!sk1_rcv_saddr || !sk2_rcv_saddr ||
-			  sk1_rcv_saddr == sk2_rcv_saddr));
+			(!sk->sk_rcv_saddr || !sk2->sk_rcv_saddr ||
+			  sk->sk_rcv_saddr == sk2->sk_rcv_saddr));
 
 	if (addr_type2 == IPV6_ADDR_ANY &&
 	    !(sk2_ipv6only && addr_type == IPV6_ADDR_MAPPED))
-- 
cgit 


From 357afe9c46c951c34769e39cabdf8d1637e2eecc Mon Sep 17 00:00:00 2001
From: Nikolay Aleksandrov <nikolay@redhat.com>
Date: Wed, 2 Oct 2013 13:39:24 +0200
Subject: flow_dissector: factor out the ports extraction in skb_flow_get_ports

Factor out the code that extracts the ports from skb_flow_dissect and
add a new function skb_flow_get_ports which can be re-used.

Suggested-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/flow_keys.h   |  1 +
 net/core/flow_dissector.c | 39 ++++++++++++++++++++++++++++-----------
 2 files changed, 29 insertions(+), 11 deletions(-)

diff --git a/include/net/flow_keys.h b/include/net/flow_keys.h
index ac2439d02f54..7e64bd8bbda9 100644
--- a/include/net/flow_keys.h
+++ b/include/net/flow_keys.h
@@ -14,4 +14,5 @@ struct flow_keys {
 };
 
 bool skb_flow_dissect(const struct sk_buff *skb, struct flow_keys *flow);
+__be32 skb_flow_get_ports(const struct sk_buff *skb, int thoff, u8 ip_proto);
 #endif
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index 8d7d0dd72db2..f8e25ac41c6c 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -25,9 +25,35 @@ static void iph_to_flow_copy_addrs(struct flow_keys *flow, const struct iphdr *i
 	memcpy(&flow->src, &iph->saddr, sizeof(flow->src) + sizeof(flow->dst));
 }
 
+/**
+ * skb_flow_get_ports - extract the upper layer ports and return them
+ * @skb: buffer to extract the ports from
+ * @thoff: transport header offset
+ * @ip_proto: protocol for which to get port offset
+ *
+ * The function will try to retrieve the ports at offset thoff + poff where poff
+ * is the protocol port offset returned from proto_ports_offset
+ */
+__be32 skb_flow_get_ports(const struct sk_buff *skb, int thoff, u8 ip_proto)
+{
+	int poff = proto_ports_offset(ip_proto);
+
+	if (poff >= 0) {
+		__be32 *ports, _ports;
+
+		ports = skb_header_pointer(skb, thoff + poff,
+					   sizeof(_ports), &_ports);
+		if (ports)
+			return *ports;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(skb_flow_get_ports);
+
 bool skb_flow_dissect(const struct sk_buff *skb, struct flow_keys *flow)
 {
-	int poff, nhoff = skb_network_offset(skb);
+	int nhoff = skb_network_offset(skb);
 	u8 ip_proto;
 	__be16 proto = skb->protocol;
 
@@ -150,16 +176,7 @@ ipv6:
 	}
 
 	flow->ip_proto = ip_proto;
-	poff = proto_ports_offset(ip_proto);
-	if (poff >= 0) {
-		__be32 *ports, _ports;
-
-		ports = skb_header_pointer(skb, nhoff + poff,
-					   sizeof(_ports), &_ports);
-		if (ports)
-			flow->ports = *ports;
-	}
-
+	flow->ports = skb_flow_get_ports(skb, nhoff, ip_proto);
 	flow->thoff = (u16) nhoff;
 
 	return true;
-- 
cgit 


From 32819dc1834866cb9547cb75f81af9edd58d33cd Mon Sep 17 00:00:00 2001
From: Nikolay Aleksandrov <nikolay@redhat.com>
Date: Wed, 2 Oct 2013 13:39:25 +0200
Subject: bonding: modify the old and add new xmit hash policies

This patch adds two new hash policy modes which use skb_flow_dissect:
3 - Encapsulated layer 2+3
4 - Encapsulated layer 3+4
There should be a good improvement for tunnel users in those modes.
It also changes the old hash functions to:
hash ^= (__force u32)flow.dst ^ (__force u32)flow.src;
hash ^= (hash >> 16);
hash ^= (hash >> 8);

Where hash will be initialized either to L2 hash, that is
SRCMAC[5] XOR DSTMAC[5], or to flow->ports which should be extracted
from the upper layer. Flow's dst and src are also extracted based on the
xmit policy either directly from the buffer or by using skb_flow_dissect,
but in both cases if the protocol is IPv6 then dst and src are obtained by
ipv6_addr_hash() on the real addresses. In case of a non-dissectable
packet, the algorithms fall back to L2 hashing.
The bond_set_mode_ops() function is now obsolete and thus deleted
because it was used only to set the proper hash policy. Also we trim a
pointer from struct bonding because we no longer need to keep the hash
function, now there's only a single hash function - bond_xmit_hash that
works based on bond->params.xmit_policy.

The hash function and skb_flow_dissect were suggested by Eric Dumazet.
The layer names were suggested by Andy Gospodarek, because I suck at
semantics.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_3ad.c   |   2 +-
 drivers/net/bonding/bond_main.c  | 197 ++++++++++++++-------------------------
 drivers/net/bonding/bond_sysfs.c |   2 -
 drivers/net/bonding/bonding.h    |   3 +-
 include/uapi/linux/if_bonding.h  |   2 +
 5 files changed, 72 insertions(+), 134 deletions(-)

diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index c62606a67f6a..ea3e64e22e22 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -2403,7 +2403,7 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev)
 		goto out;
 	}
 
-	slave_agg_no = bond->xmit_hash_policy(skb, slaves_in_agg);
+	slave_agg_no = bond_xmit_hash(bond, skb, slaves_in_agg);
 	first_ok_slave = NULL;
 
 	bond_for_each_slave(bond, slave, iter) {
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index fe8a94f9d7db..dfb4f6dd5de0 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -78,6 +78,7 @@
 #include <net/netns/generic.h>
 #include <net/pkt_sched.h>
 #include <linux/rculist.h>
+#include <net/flow_keys.h>
 #include "bonding.h"
 #include "bond_3ad.h"
 #include "bond_alb.h"
@@ -159,7 +160,8 @@ MODULE_PARM_DESC(min_links, "Minimum number of available links before turning on
 module_param(xmit_hash_policy, charp, 0);
 MODULE_PARM_DESC(xmit_hash_policy, "balance-xor and 802.3ad hashing method; "
 				   "0 for layer 2 (default), 1 for layer 3+4, "
-				   "2 for layer 2+3");
+				   "2 for layer 2+3, 3 for encap layer 2+3, "
+				   "4 for encap layer 3+4");
 module_param(arp_interval, int, 0);
 MODULE_PARM_DESC(arp_interval, "arp interval in milliseconds");
 module_param_array(arp_ip_target, charp, NULL, 0);
@@ -217,6 +219,8 @@ const struct bond_parm_tbl xmit_hashtype_tbl[] = {
 {	"layer2",		BOND_XMIT_POLICY_LAYER2},
 {	"layer3+4",		BOND_XMIT_POLICY_LAYER34},
 {	"layer2+3",		BOND_XMIT_POLICY_LAYER23},
+{	"encap2+3",		BOND_XMIT_POLICY_ENCAP23},
+{	"encap3+4",		BOND_XMIT_POLICY_ENCAP34},
 {	NULL,			-1},
 };
 
@@ -3035,99 +3039,85 @@ static struct notifier_block bond_netdev_notifier = {
 
 /*---------------------------- Hashing Policies -----------------------------*/
 
-/*
- * Hash for the output device based upon layer 2 data
- */
-static int bond_xmit_hash_policy_l2(struct sk_buff *skb, int count)
+/* L2 hash helper */
+static inline u32 bond_eth_hash(struct sk_buff *skb)
 {
 	struct ethhdr *data = (struct ethhdr *)skb->data;
 
 	if (skb_headlen(skb) >= offsetof(struct ethhdr, h_proto))
-		return (data->h_dest[5] ^ data->h_source[5]) % count;
+		return data->h_dest[5] ^ data->h_source[5];
 
 	return 0;
 }
 
-/*
- * Hash for the output device based upon layer 2 and layer 3 data. If
- * the packet is not IP, fall back on bond_xmit_hash_policy_l2()
- */
-static int bond_xmit_hash_policy_l23(struct sk_buff *skb, int count)
+/* Extract the appropriate headers based on bond's xmit policy */
+static bool bond_flow_dissect(struct bonding *bond, struct sk_buff *skb,
+			      struct flow_keys *fk)
 {
-	const struct ethhdr *data;
+	const struct ipv6hdr *iph6;
 	const struct iphdr *iph;
-	const struct ipv6hdr *ipv6h;
-	u32 v6hash;
-	const __be32 *s, *d;
+	int noff, proto = -1;
 
-	if (skb->protocol == htons(ETH_P_IP) &&
-	    pskb_network_may_pull(skb, sizeof(*iph))) {
+	if (bond->params.xmit_policy > BOND_XMIT_POLICY_LAYER23)
+		return skb_flow_dissect(skb, fk);
+
+	fk->ports = 0;
+	noff = skb_network_offset(skb);
+	if (skb->protocol == htons(ETH_P_IP)) {
+		if (!pskb_may_pull(skb, noff + sizeof(*iph)))
+			return false;
 		iph = ip_hdr(skb);
-		data = (struct ethhdr *)skb->data;
-		return ((ntohl(iph->saddr ^ iph->daddr) & 0xffff) ^
-			(data->h_dest[5] ^ data->h_source[5])) % count;
-	} else if (skb->protocol == htons(ETH_P_IPV6) &&
-		   pskb_network_may_pull(skb, sizeof(*ipv6h))) {
-		ipv6h = ipv6_hdr(skb);
-		data = (struct ethhdr *)skb->data;
-		s = &ipv6h->saddr.s6_addr32[0];
-		d = &ipv6h->daddr.s6_addr32[0];
-		v6hash = (s[1] ^ d[1]) ^ (s[2] ^ d[2]) ^ (s[3] ^ d[3]);
-		v6hash ^= (v6hash >> 24) ^ (v6hash >> 16) ^ (v6hash >> 8);
-		return (v6hash ^ data->h_dest[5] ^ data->h_source[5]) % count;
-	}
-
-	return bond_xmit_hash_policy_l2(skb, count);
+		fk->src = iph->saddr;
+		fk->dst = iph->daddr;
+		noff += iph->ihl << 2;
+		if (!ip_is_fragment(iph))
+			proto = iph->protocol;
+	} else if (skb->protocol == htons(ETH_P_IPV6)) {
+		if (!pskb_may_pull(skb, noff + sizeof(*iph6)))
+			return false;
+		iph6 = ipv6_hdr(skb);
+		fk->src = (__force __be32)ipv6_addr_hash(&iph6->saddr);
+		fk->dst = (__force __be32)ipv6_addr_hash(&iph6->daddr);
+		noff += sizeof(*iph6);
+		proto = iph6->nexthdr;
+	} else {
+		return false;
+	}
+	if (bond->params.xmit_policy == BOND_XMIT_POLICY_LAYER34 && proto >= 0)
+		fk->ports = skb_flow_get_ports(skb, noff, proto);
+
+	return true;
 }
 
-/*
- * Hash for the output device based upon layer 3 and layer 4 data. If
- * the packet is a frag or not TCP or UDP, just use layer 3 data.  If it is
- * altogether not IP, fall back on bond_xmit_hash_policy_l2()
+/**
+ * bond_xmit_hash - generate a hash value based on the xmit policy
+ * @bond: bonding device
+ * @skb: buffer to use for headers
+ * @count: modulo value
+ *
+ * This function will extract the necessary headers from the skb buffer and use
+ * them to generate a hash based on the xmit_policy set in the bonding device
+ * which will be reduced modulo count before returning.
  */
-static int bond_xmit_hash_policy_l34(struct sk_buff *skb, int count)
+int bond_xmit_hash(struct bonding *bond, struct sk_buff *skb, int count)
 {
-	u32 layer4_xor = 0;
-	const struct iphdr *iph;
-	const struct ipv6hdr *ipv6h;
-	const __be32 *s, *d;
-	const __be16 *l4 = NULL;
-	__be16 _l4[2];
-	int noff = skb_network_offset(skb);
-	int poff;
-
-	if (skb->protocol == htons(ETH_P_IP) &&
-	    pskb_may_pull(skb, noff + sizeof(*iph))) {
-		iph = ip_hdr(skb);
-		poff = proto_ports_offset(iph->protocol);
+	struct flow_keys flow;
+	u32 hash;
 
-		if (!ip_is_fragment(iph) && poff >= 0) {
-			l4 = skb_header_pointer(skb, noff + (iph->ihl << 2) + poff,
-						sizeof(_l4), &_l4);
-			if (l4)
-				layer4_xor = ntohs(l4[0] ^ l4[1]);
-		}
-		return (layer4_xor ^
-			((ntohl(iph->saddr ^ iph->daddr)) & 0xffff)) % count;
-	} else if (skb->protocol == htons(ETH_P_IPV6) &&
-		   pskb_may_pull(skb, noff + sizeof(*ipv6h))) {
-		ipv6h = ipv6_hdr(skb);
-		poff = proto_ports_offset(ipv6h->nexthdr);
-		if (poff >= 0) {
-			l4 = skb_header_pointer(skb, noff + sizeof(*ipv6h) + poff,
-						sizeof(_l4), &_l4);
-			if (l4)
-				layer4_xor = ntohs(l4[0] ^ l4[1]);
-		}
-		s = &ipv6h->saddr.s6_addr32[0];
-		d = &ipv6h->daddr.s6_addr32[0];
-		layer4_xor ^= (s[1] ^ d[1]) ^ (s[2] ^ d[2]) ^ (s[3] ^ d[3]);
-		layer4_xor ^= (layer4_xor >> 24) ^ (layer4_xor >> 16) ^
-			       (layer4_xor >> 8);
-		return layer4_xor % count;
-	}
+	if (bond->params.xmit_policy == BOND_XMIT_POLICY_LAYER2 ||
+	    !bond_flow_dissect(bond, skb, &flow))
+		return bond_eth_hash(skb) % count;
+
+	if (bond->params.xmit_policy == BOND_XMIT_POLICY_LAYER23 ||
+	    bond->params.xmit_policy == BOND_XMIT_POLICY_ENCAP23)
+		hash = bond_eth_hash(skb);
+	else
+		hash = (__force u32)flow.ports;
+	hash ^= (__force u32)flow.dst ^ (__force u32)flow.src;
+	hash ^= (hash >> 16);
+	hash ^= (hash >> 8);
 
-	return bond_xmit_hash_policy_l2(skb, count);
+	return hash % count;
 }
 
 /*-------------------------- Device entry points ----------------------------*/
@@ -3721,8 +3711,7 @@ static int bond_xmit_activebackup(struct sk_buff *skb, struct net_device *bond_d
 	return NETDEV_TX_OK;
 }
 
-/*
- * In bond_xmit_xor() , we determine the output device by using a pre-
+/* In bond_xmit_xor() , we determine the output device by using a pre-
  * determined xmit_hash_policy(), If the selected device is not enabled,
  * find the next active slave.
  */
@@ -3730,8 +3719,7 @@ static int bond_xmit_xor(struct sk_buff *skb, struct net_device *bond_dev)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
 
-	bond_xmit_slave_id(bond, skb,
-			   bond->xmit_hash_policy(skb, bond->slave_cnt));
+	bond_xmit_slave_id(bond, skb, bond_xmit_hash(bond, skb, bond->slave_cnt));
 
 	return NETDEV_TX_OK;
 }
@@ -3768,22 +3756,6 @@ static int bond_xmit_broadcast(struct sk_buff *skb, struct net_device *bond_dev)
 
 /*------------------------- Device initialization ---------------------------*/
 
-static void bond_set_xmit_hash_policy(struct bonding *bond)
-{
-	switch (bond->params.xmit_policy) {
-	case BOND_XMIT_POLICY_LAYER23:
-		bond->xmit_hash_policy = bond_xmit_hash_policy_l23;
-		break;
-	case BOND_XMIT_POLICY_LAYER34:
-		bond->xmit_hash_policy = bond_xmit_hash_policy_l34;
-		break;
-	case BOND_XMIT_POLICY_LAYER2:
-	default:
-		bond->xmit_hash_policy = bond_xmit_hash_policy_l2;
-		break;
-	}
-}
-
 /*
  * Lookup the slave that corresponds to a qid
  */
@@ -3894,38 +3866,6 @@ static netdev_tx_t bond_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	return ret;
 }
 
-/*
- * set bond mode specific net device operations
- */
-void bond_set_mode_ops(struct bonding *bond, int mode)
-{
-	struct net_device *bond_dev = bond->dev;
-
-	switch (mode) {
-	case BOND_MODE_ROUNDROBIN:
-		break;
-	case BOND_MODE_ACTIVEBACKUP:
-		break;
-	case BOND_MODE_XOR:
-		bond_set_xmit_hash_policy(bond);
-		break;
-	case BOND_MODE_BROADCAST:
-		break;
-	case BOND_MODE_8023AD:
-		bond_set_xmit_hash_policy(bond);
-		break;
-	case BOND_MODE_ALB:
-		/* FALLTHRU */
-	case BOND_MODE_TLB:
-		break;
-	default:
-		/* Should never happen, mode already checked */
-		pr_err("%s: Error: Unknown bonding mode %d\n",
-		       bond_dev->name, mode);
-		break;
-	}
-}
-
 static int bond_ethtool_get_settings(struct net_device *bond_dev,
 				     struct ethtool_cmd *ecmd)
 {
@@ -4027,7 +3967,6 @@ static void bond_setup(struct net_device *bond_dev)
 	ether_setup(bond_dev);
 	bond_dev->netdev_ops = &bond_netdev_ops;
 	bond_dev->ethtool_ops = &bond_ethtool_ops;
-	bond_set_mode_ops(bond, bond->params.mode);
 
 	bond_dev->destructor = bond_destructor;
 
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index e06c644470b1..e9249527e7e7 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -318,7 +318,6 @@ static ssize_t bonding_store_mode(struct device *d,
 	/* don't cache arp_validate between modes */
 	bond->params.arp_validate = BOND_ARP_VALIDATE_NONE;
 	bond->params.mode = new_value;
-	bond_set_mode_ops(bond, bond->params.mode);
 	pr_info("%s: setting mode to %s (%d).\n",
 		bond->dev->name, bond_mode_tbl[new_value].modename,
 		new_value);
@@ -358,7 +357,6 @@ static ssize_t bonding_store_xmit_hash(struct device *d,
 		ret = -EINVAL;
 	} else {
 		bond->params.xmit_policy = new_value;
-		bond_set_mode_ops(bond, bond->params.mode);
 		pr_info("%s: setting xmit hash policy to %s (%d).\n",
 			bond->dev->name,
 			xmit_hashtype_tbl[new_value].modename, new_value);
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 9a26fbd82645..0bd04fbda8e9 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -217,7 +217,6 @@ struct bonding {
 	char     proc_file_name[IFNAMSIZ];
 #endif /* CONFIG_PROC_FS */
 	struct   list_head bond_list;
-	int      (*xmit_hash_policy)(struct sk_buff *, int);
 	u16      rr_tx_counter;
 	struct   ad_bond_info ad_info;
 	struct   alb_bond_info alb_info;
@@ -409,7 +408,7 @@ int bond_release(struct net_device *bond_dev, struct net_device *slave_dev);
 void bond_mii_monitor(struct work_struct *);
 void bond_loadbalance_arp_mon(struct work_struct *);
 void bond_activebackup_arp_mon(struct work_struct *);
-void bond_set_mode_ops(struct bonding *bond, int mode);
+int bond_xmit_hash(struct bonding *bond, struct sk_buff *skb, int count);
 int bond_parse_parm(const char *mode_arg, const struct bond_parm_tbl *tbl);
 void bond_select_active_slave(struct bonding *bond);
 void bond_change_active_slave(struct bonding *bond, struct slave *new_active);
diff --git a/include/uapi/linux/if_bonding.h b/include/uapi/linux/if_bonding.h
index a17edda8a781..9635a62f6f89 100644
--- a/include/uapi/linux/if_bonding.h
+++ b/include/uapi/linux/if_bonding.h
@@ -91,6 +91,8 @@
 #define BOND_XMIT_POLICY_LAYER2		0 /* layer 2 (MAC only), default */
 #define BOND_XMIT_POLICY_LAYER34	1 /* layer 3+4 (IP ^ (TCP || UDP)) */
 #define BOND_XMIT_POLICY_LAYER23	2 /* layer 2+3 (IP ^ MAC) */
+#define BOND_XMIT_POLICY_ENCAP23	3 /* encapsulated layer 2+3 */
+#define BOND_XMIT_POLICY_ENCAP34	4 /* encapsulated layer 3+4 */
 
 typedef struct ifbond {
 	__s32 bond_mode;
-- 
cgit 


From 7a6afab1de8526d1d6347fc33a7957ea3015ad82 Mon Sep 17 00:00:00 2001
From: Nikolay Aleksandrov <nikolay@redhat.com>
Date: Wed, 2 Oct 2013 13:39:26 +0200
Subject: bonding: document the new xmit policy modes and update the changed
 ones

Add new documentation for encap2+3 and encap3+4, also update the formula
for the old modes due to the changes.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 Documentation/networking/bonding.txt | 66 ++++++++++++++++++++----------------
 1 file changed, 36 insertions(+), 30 deletions(-)

diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt
index 9b28e714831a..3856ed2c45a9 100644
--- a/Documentation/networking/bonding.txt
+++ b/Documentation/networking/bonding.txt
@@ -743,21 +743,16 @@ xmit_hash_policy
 		protocol information to generate the hash.
 
 		Uses XOR of hardware MAC addresses and IP addresses to
-		generate the hash.  The IPv4 formula is
+		generate the hash.  The formula is
 
-		(((source IP XOR dest IP) AND 0xffff) XOR
-			( source MAC XOR destination MAC ))
-				modulo slave count
+		hash = source MAC XOR destination MAC
+		hash = hash XOR source IP XOR destination IP
+		hash = hash XOR (hash RSHIFT 16)
+		hash = hash XOR (hash RSHIFT 8)
+		And then hash is reduced modulo slave count.
 
-		The IPv6 formula is
-
-		hash = (source ip quad 2 XOR dest IP quad 2) XOR
-		       (source ip quad 3 XOR dest IP quad 3) XOR
-		       (source ip quad 4 XOR dest IP quad 4)
-
-		(((hash >> 24) XOR (hash >> 16) XOR (hash >> 8) XOR hash)
-			XOR (source MAC XOR destination MAC))
-				modulo slave count
+		If the protocol is IPv6 then the source and destination
+		addresses are first hashed using ipv6_addr_hash.
 
 		This algorithm will place all traffic to a particular
 		network peer on the same slave.  For non-IP traffic,
@@ -779,21 +774,16 @@ xmit_hash_policy
 		slaves, although a single connection will not span
 		multiple slaves.
 
-		The formula for unfragmented IPv4 TCP and UDP packets is
-
-		((source port XOR dest port) XOR
-			 ((source IP XOR dest IP) AND 0xffff)
-				modulo slave count
+		The formula for unfragmented TCP and UDP packets is
 
-		The formula for unfragmented IPv6 TCP and UDP packets is
+		hash = source port, destination port (as in the header)
+		hash = hash XOR source IP XOR destination IP
+		hash = hash XOR (hash RSHIFT 16)
+		hash = hash XOR (hash RSHIFT 8)
+		And then hash is reduced modulo slave count.
 
-		hash = (source port XOR dest port) XOR
-		       ((source ip quad 2 XOR dest IP quad 2) XOR
-			(source ip quad 3 XOR dest IP quad 3) XOR
-			(source ip quad 4 XOR dest IP quad 4))
-
-		((hash >> 24) XOR (hash >> 16) XOR (hash >> 8) XOR hash)
-			modulo slave count
+		If the protocol is IPv6 then the source and destination
+		addresses are first hashed using ipv6_addr_hash.
 
 		For fragmented TCP or UDP packets and all other IPv4 and
 		IPv6 protocol traffic, the source and destination port
@@ -801,10 +791,6 @@ xmit_hash_policy
 		formula is the same as for the layer2 transmit hash
 		policy.
 
-		The IPv4 policy is intended to mimic the behavior of
-		certain switches, notably Cisco switches with PFC2 as
-		well as some Foundry and IBM products.
-
 		This algorithm is not fully 802.3ad compliant.  A
 		single TCP or UDP conversation containing both
 		fragmented and unfragmented packets will see packets
@@ -815,6 +801,26 @@ xmit_hash_policy
 		conversations.  Other implementations of 802.3ad may
 		or may not tolerate this noncompliance.
 
+	encap2+3
+
+		This policy uses the same formula as layer2+3 but it
+		relies on skb_flow_dissect to obtain the header fields
+		which might result in the use of inner headers if an
+		encapsulation protocol is used. For example this will
+		improve the performance for tunnel users because the
+		packets will be distributed according to the encapsulated
+		flows.
+
+	encap3+4
+
+		This policy uses the same formula as layer3+4 but it
+		relies on skb_flow_dissect to obtain the header fields
+		which might result in the use of inner headers if an
+		encapsulation protocol is used. For example this will
+		improve the performance for tunnel users because the
+		packets will be distributed according to the encapsulated
+		flows.
+
 	The default value is layer2.  This option was added in bonding
 	version 2.6.3.  In earlier versions of bonding, this parameter
 	does not exist, and the layer2 policy is the only policy.  The
-- 
cgit 


From 55705639807387d1f2637fd6ee9fd8cc087f3903 Mon Sep 17 00:00:00 2001
From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Wed, 2 Oct 2013 14:19:48 +0200
Subject: net: atl1c: Change variable type to bool

The variable ret is only assigned the values true and false.
The function atl1c_read_eeprom already returns bool. Change
ret type to bool.

The simplified semantic patch that find this problem is as
follows (http://coccinelle.lip6.fr/):

@exists@
type T;
identifier b;
@@
- T
+ bool
  b = ...;
  ... when any
  b = \(true\|false\)

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/atheros/atl1c/atl1c_hw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_hw.c b/drivers/net/ethernet/atheros/atl1c/atl1c_hw.c
index 3ef7092e3f1c..1cda49a28f7f 100644
--- a/drivers/net/ethernet/atheros/atl1c/atl1c_hw.c
+++ b/drivers/net/ethernet/atheros/atl1c/atl1c_hw.c
@@ -153,7 +153,7 @@ static int atl1c_get_permanent_address(struct atl1c_hw *hw)
 bool atl1c_read_eeprom(struct atl1c_hw *hw, u32 offset, u32 *p_value)
 {
 	int i;
-	int ret = false;
+	bool ret = false;
 	u32 otp_ctrl_data;
 	u32 control;
 	u32 data;
-- 
cgit 


From b85d717c1b66a40f006148a31e6bbb88ca6b45c0 Mon Sep 17 00:00:00 2001
From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Wed, 2 Oct 2013 14:19:49 +0200
Subject: net: bnx2x: Change variable type to bool

The variable rc is only assigned the values true and false.
The function bnx2x_prev_is_path_marked already returns bool.
Change rc type to bool.

The simplified semantic patch that find this problem is as
follows (http://coccinelle.lip6.fr/):

@exists@
type T;
identifier b;
@@
- T
+ bool
  b = ...;
  ... when any
  b = \(true\|false\)

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 10c8fdb6146a..13a569460ef2 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -9879,7 +9879,7 @@ static int bnx2x_prev_path_mark_eeh(struct bnx2x *bp)
 static bool bnx2x_prev_is_path_marked(struct bnx2x *bp)
 {
 	struct bnx2x_prev_path_list *tmp_list;
-	int rc = false;
+	bool rc = false;
 
 	if (down_trylock(&bnx2x_prev_sem))
 		return false;
-- 
cgit 


From de36cef3e76e6e912f311759d7849bc6e81882cf Mon Sep 17 00:00:00 2001
From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Wed, 2 Oct 2013 14:19:50 +0200
Subject: net: myri10ge: Change variable type to bool

There is the rc variable on both myri10ge_ss_lock_napi and
myri10ge_ss_lock_poll functions. In both cases rc is only assigned the
values true and false. Both functions already return bool. Change rc
type to bool.

The simplified semantic patch that find this problem is as
follows (http://coccinelle.lip6.fr/):

@exists@
type T;
identifier b;
@@
- T
+ bool
  b = ...;
  ... when any
  b = \(true\|false\)

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/myricom/myri10ge/myri10ge.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
index 6ddaf7b3d92e..1975550c3634 100644
--- a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
+++ b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
@@ -934,7 +934,7 @@ static inline void myri10ge_ss_init_lock(struct myri10ge_slice_state *ss)
 
 static inline bool myri10ge_ss_lock_napi(struct myri10ge_slice_state *ss)
 {
-	int rc = true;
+	bool rc = true;
 	spin_lock(&ss->lock);
 	if ((ss->state & SLICE_LOCKED)) {
 		WARN_ON((ss->state & SLICE_STATE_NAPI));
@@ -957,7 +957,7 @@ static inline void myri10ge_ss_unlock_napi(struct myri10ge_slice_state *ss)
 
 static inline bool myri10ge_ss_lock_poll(struct myri10ge_slice_state *ss)
 {
-	int rc = true;
+	bool rc = true;
 	spin_lock_bh(&ss->lock);
 	if ((ss->state & SLICE_LOCKED)) {
 		ss->state |= SLICE_STATE_POLL_YIELD;
-- 
cgit 


From 34a6eda163975de55c5d6810276c5fa37087e366 Mon Sep 17 00:00:00 2001
From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Wed, 2 Oct 2013 14:19:51 +0200
Subject: net: ipv4: Change variable type to bool

The variable fully_acked is only assigned the values true and false.
Change its type to bool.

The simplified semantic patch that find this problem is as
follows (http://coccinelle.lip6.fr/):

@exists@
type T;
identifier b;
@@
- T
+ bool
  b = ...;
  ... when any
  b = \(true\|false\)

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/tcp_input.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index cd65674ece92..fa6cf1f91ff8 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -3012,7 +3012,7 @@ static int tcp_clean_rtx_queue(struct sock *sk, int prior_fackets,
 	const struct inet_connection_sock *icsk = inet_csk(sk);
 	struct sk_buff *skb;
 	u32 now = tcp_time_stamp;
-	int fully_acked = true;
+	bool fully_acked = true;
 	int flag = 0;
 	u32 pkts_acked = 0;
 	u32 reord = tp->packets_out;
-- 
cgit 


From 1d3d59108e53ce9815651ee20633506d559bacf6 Mon Sep 17 00:00:00 2001
From: Matthew Whitehead <tedheadster@gmail.com>
Date: Wed, 2 Oct 2013 11:08:03 -0400
Subject: 3com: Fix drivers/net/ethernet/3com/Kconfig references to PCMCIA and
 3c515

The Vortex driver works with PCI and Cardbus devices, not PCMCIA.

There never was an EISA 3c515 card, only ISA, so remove that option.

Signed-off-by: Matthew Whitehead <tedheadster@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/3com/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/3com/Kconfig b/drivers/net/ethernet/3com/Kconfig
index f00c76377b44..65b735d4a6ad 100644
--- a/drivers/net/ethernet/3com/Kconfig
+++ b/drivers/net/ethernet/3com/Kconfig
@@ -35,7 +35,7 @@ config EL3
 
 config 3C515
 	tristate "3c515 ISA \"Fast EtherLink\""
-	depends on (ISA || EISA) && ISA_DMA_API
+	depends on ISA && ISA_DMA_API
 	---help---
 	  If you have a 3Com ISA EtherLink XL "Corkscrew" 3c515 Fast Ethernet
 	  network card, say Y and read the Ethernet-HOWTO, available from
@@ -70,7 +70,7 @@ config VORTEX
 	select MII
 	---help---
 	  This option enables driver support for a large number of 10Mbps and
-	  10/100Mbps EISA, PCI and PCMCIA 3Com network cards:
+	  10/100Mbps EISA, PCI and Cardbus 3Com network cards:
 
 	  "Vortex"    (Fast EtherLink 3c590/3c592/3c595/3c597) EISA and PCI
 	  "Boomerang" (EtherLink XL 3c900 or 3c905)            PCI
-- 
cgit 


From 4e9053231a168646b3e17f4cab6eae3da66f7152 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 09:04:25 +0530
Subject: i2c: remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-davinci.c           | 2 +-
 drivers/i2c/busses/i2c-mv64xxx.c           | 2 +-
 drivers/i2c/muxes/i2c-arb-gpio-challenge.c | 2 +-
 drivers/i2c/muxes/i2c-mux-gpio.c           | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c
index 132369fad4e0..85e8ad6056c4 100644
--- a/drivers/i2c/busses/i2c-davinci.c
+++ b/drivers/i2c/busses/i2c-davinci.c
@@ -795,7 +795,7 @@ static struct platform_driver davinci_i2c_driver = {
 		.name	= "i2c_davinci",
 		.owner	= THIS_MODULE,
 		.pm	= davinci_i2c_pm_ops,
-		.of_match_table = of_match_ptr(davinci_i2c_of_match),
+		.of_match_table = davinci_i2c_of_match,
 	},
 };
 
diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c
index d3e9cc3153a9..8be7e42aa4de 100644
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -911,7 +911,7 @@ static struct platform_driver mv64xxx_i2c_driver = {
 	.driver	= {
 		.owner	= THIS_MODULE,
 		.name	= MV64XXX_I2C_CTLR_NAME,
-		.of_match_table = of_match_ptr(mv64xxx_i2c_of_match_table),
+		.of_match_table = mv64xxx_i2c_of_match_table,
 	},
 };
 
diff --git a/drivers/i2c/muxes/i2c-arb-gpio-challenge.c b/drivers/i2c/muxes/i2c-arb-gpio-challenge.c
index 74b41ae690f3..cb9af93eeb5b 100644
--- a/drivers/i2c/muxes/i2c-arb-gpio-challenge.c
+++ b/drivers/i2c/muxes/i2c-arb-gpio-challenge.c
@@ -238,7 +238,7 @@ static struct platform_driver i2c_arbitrator_driver = {
 	.driver	= {
 		.owner	= THIS_MODULE,
 		.name	= "i2c-arb-gpio-challenge",
-		.of_match_table = of_match_ptr(i2c_arbitrator_of_match),
+		.of_match_table = i2c_arbitrator_of_match,
 	},
 };
 
diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c
index 5d4a99ba743e..927a7deafd21 100644
--- a/drivers/i2c/muxes/i2c-mux-gpio.c
+++ b/drivers/i2c/muxes/i2c-mux-gpio.c
@@ -279,7 +279,7 @@ static struct platform_driver i2c_mux_gpio_driver = {
 	.driver	= {
 		.owner	= THIS_MODULE,
 		.name	= "i2c-mux-gpio",
-		.of_match_table = of_match_ptr(i2c_mux_gpio_of_match),
+		.of_match_table = i2c_mux_gpio_of_match,
 	},
 };
 
-- 
cgit 


From 4cd0ea456bba79f853ce030b8a58b00f2a38b69a Mon Sep 17 00:00:00 2001
From: Franky Lin <frankyl@broadcom.com>
Date: Wed, 25 Sep 2013 13:05:40 +0200
Subject: brcmfmac: sync firmware event list

Update event list to keep sync with firmware development. Use calculated event
mask length instead of hard-coded value.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/dhd.h  | 2 --
 drivers/net/wireless/brcm80211/brcmfmac/fweh.h | 5 ++++-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd.h
index 2eb9e642c9bf..4de9aac6666d 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd.h
@@ -97,8 +97,6 @@
 #define	WLC_PHY_TYPE_LCN	8
 #define	WLC_PHY_TYPE_NULL	0xf
 
-#define BRCMF_EVENTING_MASK_LEN	16
-
 #define TOE_TX_CSUM_OL		0x00000001
 #define TOE_RX_CSUM_OL		0x00000002
 
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fweh.h b/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
index e679214b3c98..9ee5c5159da0 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
@@ -102,7 +102,8 @@ struct brcmf_event;
 	BRCMF_ENUM_DEF(DCS_REQUEST, 73) \
 	BRCMF_ENUM_DEF(FIFO_CREDIT_MAP, 74) \
 	BRCMF_ENUM_DEF(ACTION_FRAME_RX, 75) \
-	BRCMF_ENUM_DEF(BCMC_CREDIT_SUPPORT, 127)
+	BRCMF_ENUM_DEF(BCMC_CREDIT_SUPPORT, 127) \
+	BRCMF_ENUM_DEF(PSTA_PRIMARY_INTF_IND, 128)
 
 #define BRCMF_ENUM_DEF(id, val) \
 	BRCMF_E_##id = (val),
@@ -114,6 +115,8 @@ enum brcmf_fweh_event_code {
 };
 #undef BRCMF_ENUM_DEF
 
+#define BRCMF_EVENTING_MASK_LEN		(roundup(BRCMF_E_LAST, 8)/8)
+
 /* flags field values in struct brcmf_event_msg */
 #define BRCMF_EVENT_MSG_LINK		0x01
 #define BRCMF_EVENT_MSG_FLUSHTXQ	0x02
-- 
cgit 


From fe0401582ed4f4ba385b191a7aa1d5984fed81ed Mon Sep 17 00:00:00 2001
From: Franky Lin <frankyl@broadcom.com>
Date: Wed, 25 Sep 2013 13:05:41 +0200
Subject: brcmfmac: add BCM4339 SDIO interface support

BCM4339 is an a/b/g/n/ac 1x1 WiFi chip. This patch adds support for it through
SDIO interface.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c | 11 +++--------
 drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c    | 18 ++++++++++++++++++
 drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.h    |  8 ++++++++
 drivers/net/wireless/brcm80211/include/brcm_hw_ids.h   |  1 +
 4 files changed, 30 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
index 592ae13c1d55..091c905871cc 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
@@ -34,6 +34,7 @@
 #include <brcmu_utils.h>
 #include <brcmu_wifi.h>
 #include "sdio_host.h"
+#include "sdio_chip.h"
 #include "dhd_dbg.h"
 #include "dhd_bus.h"
 
@@ -41,13 +42,6 @@
 
 #define DMA_ALIGN_MASK	0x03
 
-#define SDIO_DEVICE_ID_BROADCOM_43143	43143
-#define SDIO_DEVICE_ID_BROADCOM_43241	0x4324
-#define SDIO_DEVICE_ID_BROADCOM_4329	0x4329
-#define SDIO_DEVICE_ID_BROADCOM_4330	0x4330
-#define SDIO_DEVICE_ID_BROADCOM_4334	0x4334
-#define SDIO_DEVICE_ID_BROADCOM_4335	0x4335
-
 #define SDIO_FUNC1_BLOCKSIZE		64
 #define SDIO_FUNC2_BLOCKSIZE		512
 
@@ -58,7 +52,8 @@ static const struct sdio_device_id brcmf_sdmmc_ids[] = {
 	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4329)},
 	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4330)},
 	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4334)},
-	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4335)},
+	{SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM,
+		     SDIO_DEVICE_ID_BROADCOM_4335_4339)},
 	{ /* end: all zeroes */ },
 };
 MODULE_DEVICE_TABLE(sdio, brcmf_sdmmc_ids);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c b/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c
index ca72177388b9..023ddcb885de 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c
@@ -18,6 +18,7 @@
 #include <linux/types.h>
 #include <linux/netdevice.h>
 #include <linux/mmc/card.h>
+#include <linux/mmc/sdio_func.h>
 #include <linux/ssb/ssb_regs.h>
 #include <linux/bcma/bcma.h>
 
@@ -444,6 +445,9 @@ static int brcmf_sdio_chip_recognition(struct brcmf_sdio_dev *sdiodev,
 				   NULL);
 	ci->chip = regdata & CID_ID_MASK;
 	ci->chiprev = (regdata & CID_REV_MASK) >> CID_REV_SHIFT;
+	if (sdiodev->func[0]->device == SDIO_DEVICE_ID_BROADCOM_4335_4339 &&
+	    ci->chiprev >= 2)
+		ci->chip = BCM4339_CHIP_ID;
 	ci->socitype = (regdata & CID_TYPE_MASK) >> CID_TYPE_SHIFT;
 
 	brcmf_dbg(INFO, "chipid=0x%x chiprev=%d\n", ci->chip, ci->chiprev);
@@ -541,6 +545,20 @@ static int brcmf_sdio_chip_recognition(struct brcmf_sdio_dev *sdiodev,
 		ci->ramsize = 0xc0000;
 		ci->rambase = 0x180000;
 		break;
+	case BCM4339_CHIP_ID:
+		ci->c_inf[0].wrapbase = 0x18100000;
+		ci->c_inf[0].cib = 0x2e084411;
+		ci->c_inf[1].id = BCMA_CORE_SDIO_DEV;
+		ci->c_inf[1].base = 0x18005000;
+		ci->c_inf[1].wrapbase = 0x18105000;
+		ci->c_inf[1].cib = 0x15004211;
+		ci->c_inf[2].id = BCMA_CORE_ARM_CR4;
+		ci->c_inf[2].base = 0x18002000;
+		ci->c_inf[2].wrapbase = 0x18102000;
+		ci->c_inf[2].cib = 0x04084411;
+		ci->ramsize = 0xc0000;
+		ci->rambase = 0x180000;
+		break;
 	default:
 		brcmf_err("chipid 0x%x is not supported\n", ci->chip);
 		return -ENODEV;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.h b/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.h
index 83c041f1bf4a..076b83c7c896 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.h
@@ -54,6 +54,14 @@
 
 #define BRCMF_MAX_CORENUM	6
 
+/* SDIO device ID */
+#define SDIO_DEVICE_ID_BROADCOM_43143		43143
+#define SDIO_DEVICE_ID_BROADCOM_43241		0x4324
+#define SDIO_DEVICE_ID_BROADCOM_4329		0x4329
+#define SDIO_DEVICE_ID_BROADCOM_4330		0x4330
+#define SDIO_DEVICE_ID_BROADCOM_4334		0x4334
+#define SDIO_DEVICE_ID_BROADCOM_4335_4339	0x4335
+
 struct chip_core_info {
 	u16 id;
 	u16 rev;
diff --git a/drivers/net/wireless/brcm80211/include/brcm_hw_ids.h b/drivers/net/wireless/brcm80211/include/brcm_hw_ids.h
index c1fe245bb07e..84113ea16f84 100644
--- a/drivers/net/wireless/brcm80211/include/brcm_hw_ids.h
+++ b/drivers/net/wireless/brcm80211/include/brcm_hw_ids.h
@@ -41,5 +41,6 @@
 #define BCM4331_CHIP_ID		0x4331
 #define BCM4334_CHIP_ID		0x4334
 #define BCM4335_CHIP_ID		0x4335
+#define BCM4339_CHIP_ID		0x4339
 
 #endif				/* _BRCM_HW_IDS_H_ */
-- 
cgit 


From 7434785652457482a4b22c280a83776c3873940d Mon Sep 17 00:00:00 2001
From: Franky Lin <frankyl@broadcom.com>
Date: Wed, 25 Sep 2013 13:05:42 +0200
Subject: brcmfmac: add valid core index check in related functions

Perform a valid check for core index to avoid illegal address access.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c b/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c
index 023ddcb885de..2096a14ef1fb 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio_chip.c
@@ -137,6 +137,8 @@ brcmf_sdio_sb_iscoreup(struct brcmf_sdio_dev *sdiodev,
 	u8 idx;
 
 	idx = brcmf_sdio_chip_getinfidx(ci, coreid);
+	if (idx == BRCMF_MAX_CORENUM)
+		return false;
 
 	regdata = brcmf_sdio_regrl(sdiodev,
 				   CORE_SB(ci->c_inf[idx].base, sbtmstatelow),
@@ -155,6 +157,8 @@ brcmf_sdio_ai_iscoreup(struct brcmf_sdio_dev *sdiodev,
 	bool ret;
 
 	idx = brcmf_sdio_chip_getinfidx(ci, coreid);
+	if (idx == BRCMF_MAX_CORENUM)
+		return false;
 
 	regdata = brcmf_sdio_regrl(sdiodev, ci->c_inf[idx].wrapbase+BCMA_IOCTL,
 				   NULL);
@@ -262,6 +266,8 @@ brcmf_sdio_ai_coredisable(struct brcmf_sdio_dev *sdiodev,
 	u32 regdata;
 
 	idx = brcmf_sdio_chip_getinfidx(ci, coreid);
+	if (idx == BRCMF_MAX_CORENUM)
+		return;
 
 	/* if core is already in reset, just return */
 	regdata = brcmf_sdio_regrl(sdiodev,
@@ -305,6 +311,8 @@ brcmf_sdio_sb_resetcore(struct brcmf_sdio_dev *sdiodev,
 	u8 idx;
 
 	idx = brcmf_sdio_chip_getinfidx(ci, coreid);
+	if (idx == BRCMF_MAX_CORENUM)
+		return;
 
 	/*
 	 * Must do the disable sequence first to work for
@@ -369,6 +377,8 @@ brcmf_sdio_ai_resetcore(struct brcmf_sdio_dev *sdiodev,
 	u32 regdata;
 
 	idx = brcmf_sdio_chip_getinfidx(ci, coreid);
+	if (idx == BRCMF_MAX_CORENUM)
+		return;
 
 	/* must disable first to work for arbitrary current core state */
 	brcmf_sdio_ai_coredisable(sdiodev, ci, coreid, core_bits);
-- 
cgit 


From 5491c11c67f2c83c95fa9a26172bc1994580aed7 Mon Sep 17 00:00:00 2001
From: Franky Lin <frankyl@broadcom.com>
Date: Wed, 25 Sep 2013 13:05:43 +0200
Subject: brcmfmac: reserve memory for bus layer in sk_buff::cb

Bus layer need to share sk_buff::cb with firmware signal feature. Reserve
necessary memory so they won't overwrite each other.

Reviewed-by: Arend Van Spriel <arend@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c | 15 ++++++++++-----
 drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c |  2 ++
 2 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
index 1aa75d5951b8..f9ba4d0970d1 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
@@ -1786,10 +1786,15 @@ brcmf_sdbrcm_wait_event_wakeup(struct brcmf_sdio *bus)
 	return;
 }
 
+/**
+ * struct brcmf_skbuff_cb reserves first two bytes in sk_buff::cb for
+ * bus layer usage.
+ */
 /* flag marking a dummy skb added for DMA alignment requirement */
-#define DUMMY_SKB_FLAG		0x10000
+#define ALIGN_SKB_FLAG		0x8000
 /* bit mask of data length chopped from the previous packet */
-#define DUMMY_SKB_CHOP_LEN_MASK	0xffff
+#define ALIGN_SKB_CHOP_LEN_MASK	0x7fff
+
 /**
  * brcmf_sdio_txpkt_prep - packet preparation for transmit
  * @bus: brcmf_sdio structure pointer
@@ -1854,7 +1859,7 @@ brcmf_sdio_txpkt_prep(struct brcmf_sdio *bus, struct sk_buff_head *pktq,
 		memcpy(pkt_new->data,
 		       pkt_next->data + pkt_next->len - tail_chop,
 		       tail_chop);
-		*(u32 *)(pkt_new->cb) = DUMMY_SKB_FLAG + tail_chop;
+		*(u32 *)(pkt_new->cb) = ALIGN_SKB_FLAG + tail_chop;
 		skb_trim(pkt_next, pkt_next->len - tail_chop);
 		__skb_queue_after(pktq, pkt_next, pkt_new);
 	} else {
@@ -1908,8 +1913,8 @@ brcmf_sdio_txpkt_postp(struct brcmf_sdio *bus, struct sk_buff_head *pktq)
 
 	skb_queue_walk_safe(pktq, pkt_next, tmp) {
 		dummy_flags = *(u32 *)(pkt_next->cb);
-		if (dummy_flags & DUMMY_SKB_FLAG) {
-			chop_len = dummy_flags & DUMMY_SKB_CHOP_LEN_MASK;
+		if (dummy_flags & ALIGN_SKB_FLAG) {
+			chop_len = dummy_flags & ALIGN_SKB_CHOP_LEN_MASK;
 			if (chop_len) {
 				pkt_prev = pkt_next->prev;
 				memcpy(pkt_prev->data + pkt_prev->len,
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
index 82f9140f3d35..d0cd0bf95c5a 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fwsignal.c
@@ -168,6 +168,7 @@ enum brcmf_fws_skb_state {
 /**
  * struct brcmf_skbuff_cb - control buffer associated with skbuff.
  *
+ * @bus_flags: 2 bytes reserved for bus specific parameters
  * @if_flags: holds interface index and packet related flags.
  * @htod: host to device packet identifier (used in PKTTAG tlv).
  * @state: transmit state of the packet.
@@ -177,6 +178,7 @@ enum brcmf_fws_skb_state {
  * provides 48 bytes of storage so this structure should not exceed that.
  */
 struct brcmf_skbuff_cb {
+	u16 bus_flags;
 	u16 if_flags;
 	u32 htod;
 	enum brcmf_fws_skb_state state;
-- 
cgit 


From 5af47fb394b54c4e8ff9035d1aa590e3c7b611dd Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Wed, 25 Sep 2013 13:05:44 +0200
Subject: brcmfmac: fix sparse error 'bad constant expression'

The definition of BRCMF_EVENTING_MASK_LEN results in a sparse
error message

.../fweh.c:331:22: error: bad constant expression
.../fweh.c:388:22: error: bad constant expression
.../dhd_common.c:256:22: error: bad constant expression

This is caused by the use of roundup() in BRCMF_EVENTING_MASK_LEN
and it is used to allocate an array variable on the stack. Better
use DIV_ROUND_UP() macro.

Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/fweh.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/fweh.h b/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
index 9ee5c5159da0..14bc24dc5bae 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/fweh.h
@@ -115,7 +115,7 @@ enum brcmf_fweh_event_code {
 };
 #undef BRCMF_ENUM_DEF
 
-#define BRCMF_EVENTING_MASK_LEN		(roundup(BRCMF_E_LAST, 8)/8)
+#define BRCMF_EVENTING_MASK_LEN		DIV_ROUND_UP(BRCMF_E_LAST, 8)
 
 /* flags field values in struct brcmf_event_msg */
 #define BRCMF_EVENT_MSG_LINK		0x01
-- 
cgit 


From f2c44fe7c83eeee6ca8828d9b3d0b4c205a7bc1b Mon Sep 17 00:00:00 2001
From: Hante Meuleman <meuleman@broadcom.com>
Date: Wed, 25 Sep 2013 13:05:45 +0200
Subject: brcmfmac: Use fw filename and nvram based of devid for sdio.

SDIO firmware download routines uses one name for firmware file
and nvram file for all sdio devices. This is not user friendly.
Use fw filename and nvram filename based upon chip id and revision.

Reported-by: Stephen Warren <swarren@wwwdotorg.org>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Hante Meuleman <meuleman@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c | 207 +++++++++++++--------
 1 file changed, 133 insertions(+), 74 deletions(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
index f9ba4d0970d1..6e72b7378f95 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
@@ -275,11 +275,6 @@ struct rte_console {
 /* Flags for SDH calls */
 #define F2SYNC	(SDIO_REQ_4BYTE | SDIO_REQ_FIXED)
 
-#define BRCMF_SDIO_FW_NAME	"brcm/brcmfmac-sdio.bin"
-#define BRCMF_SDIO_NV_NAME	"brcm/brcmfmac-sdio.txt"
-MODULE_FIRMWARE(BRCMF_SDIO_FW_NAME);
-MODULE_FIRMWARE(BRCMF_SDIO_NV_NAME);
-
 #define BRCMF_IDLE_IMMEDIATE	(-1)	/* Enter idle immediately */
 #define BRCMF_IDLE_ACTIVE	0	/* Do not request any SD clock change
 					 * when idle
@@ -454,9 +449,6 @@ struct brcmf_sdio {
 	struct work_struct datawork;
 	atomic_t dpc_tskcnt;
 
-	const struct firmware *firmware;
-	u32 fw_ptr;
-
 	bool txoff;		/* Transmit flow-controlled */
 	struct brcmf_sdio_count sdcnt;
 	bool sr_enabled; /* SaveRestore enabled */
@@ -493,6 +485,100 @@ enum brcmf_sdio_frmtype {
 	BRCMF_SDIO_FT_SUB,
 };
 
+#define BCM43143_FIRMWARE_NAME		"brcm/brcmfmac43143-sdio.bin"
+#define BCM43143_NVRAM_NAME		"brcm/brcmfmac43143-sdio.txt"
+#define BCM43241B0_FIRMWARE_NAME	"brcm/brcmfmac43241b0-sdio.bin"
+#define BCM43241B0_NVRAM_NAME		"brcm/brcmfmac43241b0-sdio.txt"
+#define BCM43241B4_FIRMWARE_NAME	"brcm/brcmfmac43241b4-sdio.bin"
+#define BCM43241B4_NVRAM_NAME		"brcm/brcmfmac43241b4-sdio.txt"
+#define BCM4329_FIRMWARE_NAME		"brcm/brcmfmac4329-sdio.bin"
+#define BCM4329_NVRAM_NAME		"brcm/brcmfmac4329-sdio.txt"
+#define BCM4330_FIRMWARE_NAME		"brcm/brcmfmac4330-sdio.bin"
+#define BCM4330_NVRAM_NAME		"brcm/brcmfmac4330-sdio.txt"
+#define BCM4334_FIRMWARE_NAME		"brcm/brcmfmac4334-sdio.bin"
+#define BCM4334_NVRAM_NAME		"brcm/brcmfmac4334-sdio.txt"
+#define BCM4335_FIRMWARE_NAME		"brcm/brcmfmac4335-sdio.bin"
+#define BCM4335_NVRAM_NAME		"brcm/brcmfmac4335-sdio.txt"
+
+MODULE_FIRMWARE(BCM43143_FIRMWARE_NAME);
+MODULE_FIRMWARE(BCM43143_NVRAM_NAME);
+MODULE_FIRMWARE(BCM43241B0_FIRMWARE_NAME);
+MODULE_FIRMWARE(BCM43241B0_NVRAM_NAME);
+MODULE_FIRMWARE(BCM43241B4_FIRMWARE_NAME);
+MODULE_FIRMWARE(BCM43241B4_NVRAM_NAME);
+MODULE_FIRMWARE(BCM4329_FIRMWARE_NAME);
+MODULE_FIRMWARE(BCM4329_NVRAM_NAME);
+MODULE_FIRMWARE(BCM4330_FIRMWARE_NAME);
+MODULE_FIRMWARE(BCM4330_NVRAM_NAME);
+MODULE_FIRMWARE(BCM4334_FIRMWARE_NAME);
+MODULE_FIRMWARE(BCM4334_NVRAM_NAME);
+MODULE_FIRMWARE(BCM4335_FIRMWARE_NAME);
+MODULE_FIRMWARE(BCM4335_NVRAM_NAME);
+
+struct brcmf_firmware_names {
+	u32 chipid;
+	u32 revmsk;
+	const char *bin;
+	const char *nv;
+};
+
+enum brcmf_firmware_type {
+	BRCMF_FIRMWARE_BIN,
+	BRCMF_FIRMWARE_NVRAM
+};
+
+#define BRCMF_FIRMWARE_NVRAM(name) \
+	name ## _FIRMWARE_NAME, name ## _NVRAM_NAME
+
+static const struct brcmf_firmware_names brcmf_fwname_data[] = {
+	{ BCM43143_CHIP_ID, 0xFFFFFFFF, BRCMF_FIRMWARE_NVRAM(BCM43143) },
+	{ BCM43241_CHIP_ID, 0x0000001F, BRCMF_FIRMWARE_NVRAM(BCM43241B0) },
+	{ BCM43241_CHIP_ID, 0xFFFFFFE0, BRCMF_FIRMWARE_NVRAM(BCM43241B4) },
+	{ BCM4329_CHIP_ID, 0xFFFFFFFF, BRCMF_FIRMWARE_NVRAM(BCM4329) },
+	{ BCM4330_CHIP_ID, 0xFFFFFFFF, BRCMF_FIRMWARE_NVRAM(BCM4330) },
+	{ BCM4334_CHIP_ID, 0xFFFFFFFF, BRCMF_FIRMWARE_NVRAM(BCM4334) },
+	{ BCM4335_CHIP_ID, 0xFFFFFFFF, BRCMF_FIRMWARE_NVRAM(BCM4335) }
+};
+
+
+static const struct firmware *brcmf_sdbrcm_get_fw(struct brcmf_sdio *bus,
+						  enum brcmf_firmware_type type)
+{
+	const struct firmware *fw;
+	const char *name;
+	int err, i;
+
+	for (i = 0; i < ARRAY_SIZE(brcmf_fwname_data); i++) {
+		if (brcmf_fwname_data[i].chipid == bus->ci->chip &&
+		    brcmf_fwname_data[i].revmsk & BIT(bus->ci->chiprev)) {
+			switch (type) {
+			case BRCMF_FIRMWARE_BIN:
+				name = brcmf_fwname_data[i].bin;
+				break;
+			case BRCMF_FIRMWARE_NVRAM:
+				name = brcmf_fwname_data[i].nv;
+				break;
+			default:
+				brcmf_err("invalid firmware type (%d)\n", type);
+				return NULL;
+			}
+			goto found;
+		}
+	}
+	brcmf_err("Unknown chipid %d [%d]\n",
+		  bus->ci->chip, bus->ci->chiprev);
+	return NULL;
+
+found:
+	err = request_firmware(&fw, name, &bus->sdiodev->func[2]->dev);
+	if ((err) || (!fw)) {
+		brcmf_err("fail to request firmware %s (%d)\n", name, err);
+		return NULL;
+	}
+
+	return fw;
+}
+
 static void pkt_align(struct sk_buff *p, int len, int align)
 {
 	uint datalign;
@@ -3042,69 +3128,43 @@ static bool brcmf_sdbrcm_download_state(struct brcmf_sdio *bus, bool enter)
 	return true;
 }
 
-static int brcmf_sdbrcm_get_image(char *buf, int len, struct brcmf_sdio *bus)
-{
-	if (bus->firmware->size < bus->fw_ptr + len)
-		len = bus->firmware->size - bus->fw_ptr;
-
-	memcpy(buf, &bus->firmware->data[bus->fw_ptr], len);
-	bus->fw_ptr += len;
-	return len;
-}
-
 static int brcmf_sdbrcm_download_code_file(struct brcmf_sdio *bus)
 {
+	const struct firmware *fw;
+	int err;
 	int offset;
-	uint len;
-	u8 *memblock = NULL, *memptr;
-	int ret;
-	u8 idx;
-
-	brcmf_dbg(INFO, "Enter\n");
-
-	ret = request_firmware(&bus->firmware, BRCMF_SDIO_FW_NAME,
-			       &bus->sdiodev->func[2]->dev);
-	if (ret) {
-		brcmf_err("Fail to request firmware %d\n", ret);
-		return ret;
-	}
-	bus->fw_ptr = 0;
-
-	memptr = memblock = kmalloc(MEMBLOCK + BRCMF_SDALIGN, GFP_ATOMIC);
-	if (memblock == NULL) {
-		ret = -ENOMEM;
-		goto err;
-	}
-	if ((u32)(unsigned long)memblock % BRCMF_SDALIGN)
-		memptr += (BRCMF_SDALIGN -
-			   ((u32)(unsigned long)memblock % BRCMF_SDALIGN));
-
-	offset = bus->ci->rambase;
-
-	/* Download image */
-	len = brcmf_sdbrcm_get_image((char *)memptr, MEMBLOCK, bus);
-	idx = brcmf_sdio_chip_getinfidx(bus->ci, BCMA_CORE_ARM_CR4);
-	if (BRCMF_MAX_CORENUM != idx)
-		memcpy(&bus->ci->rst_vec, memptr, sizeof(bus->ci->rst_vec));
-	while (len) {
-		ret = brcmf_sdio_ramrw(bus->sdiodev, true, offset, memptr, len);
-		if (ret) {
+	int address;
+	int len;
+
+	fw = brcmf_sdbrcm_get_fw(bus, BRCMF_FIRMWARE_BIN);
+	if (fw == NULL)
+		return -ENOENT;
+
+	if (brcmf_sdio_chip_getinfidx(bus->ci, BCMA_CORE_ARM_CR4) !=
+	    BRCMF_MAX_CORENUM)
+		memcpy(&bus->ci->rst_vec, fw->data, sizeof(bus->ci->rst_vec));
+
+	err = 0;
+	offset = 0;
+	address = bus->ci->rambase;
+	while (offset < fw->size) {
+		len = ((offset + MEMBLOCK) < fw->size) ? MEMBLOCK :
+		      fw->size - offset;
+		err = brcmf_sdio_ramrw(bus->sdiodev, true, address,
+				       (u8 *)&fw->data[offset], len);
+		if (err) {
 			brcmf_err("error %d on writing %d membytes at 0x%08x\n",
-				  ret, MEMBLOCK, offset);
-			goto err;
+				  err, len, address);
+			goto failure;
 		}
-
-		offset += MEMBLOCK;
-		len = brcmf_sdbrcm_get_image((char *)memptr, MEMBLOCK, bus);
+		offset += len;
+		address += len;
 	}
 
-err:
-	kfree(memblock);
-
-	release_firmware(bus->firmware);
-	bus->fw_ptr = 0;
+failure:
+	release_firmware(fw);
 
-	return ret;
+	return err;
 }
 
 /*
@@ -3116,7 +3176,8 @@ err:
  * by two NULs.
 */
 
-static int brcmf_process_nvram_vars(struct brcmf_sdio *bus)
+static int brcmf_process_nvram_vars(struct brcmf_sdio *bus,
+				    const struct firmware *nv)
 {
 	char *varbuf;
 	char *dp;
@@ -3125,12 +3186,12 @@ static int brcmf_process_nvram_vars(struct brcmf_sdio *bus)
 	int ret = 0;
 	uint buf_len, n, len;
 
-	len = bus->firmware->size;
+	len = nv->size;
 	varbuf = vmalloc(len);
 	if (!varbuf)
 		return -ENOMEM;
 
-	memcpy(varbuf, bus->firmware->data, len);
+	memcpy(varbuf, nv->data, len);
 	dp = varbuf;
 
 	findNewline = false;
@@ -3182,18 +3243,16 @@ err:
 
 static int brcmf_sdbrcm_download_nvram(struct brcmf_sdio *bus)
 {
+	const struct firmware *nv;
 	int ret;
 
-	ret = request_firmware(&bus->firmware, BRCMF_SDIO_NV_NAME,
-			       &bus->sdiodev->func[2]->dev);
-	if (ret) {
-		brcmf_err("Fail to request nvram %d\n", ret);
-		return ret;
-	}
+	nv = brcmf_sdbrcm_get_fw(bus, BRCMF_FIRMWARE_NVRAM);
+	if (nv == NULL)
+		return -ENOENT;
 
-	ret = brcmf_process_nvram_vars(bus);
+	ret = brcmf_process_nvram_vars(bus, nv);
 
-	release_firmware(bus->firmware);
+	release_firmware(nv);
 
 	return ret;
 }
-- 
cgit 


From 05f3820b2e2e391bbc4434448c10f08387f209aa Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Wed, 25 Sep 2013 13:05:46 +0200
Subject: brcmfmac: rework rx path bus interface

The brcmfmac has common and bus specific part. The rx function api
was using sk_buff_head. Changed to sk_buff instead.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h  |  2 +-
 .../net/wireless/brcm80211/brcmfmac/dhd_linux.c    | 38 +++++++++-------------
 drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c | 12 +++----
 drivers/net/wireless/brcm80211/brcmfmac/usb.c      |  5 +--
 4 files changed, 22 insertions(+), 35 deletions(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h b/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
index f7c1985844e4..200ee9b485bf 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_bus.h
@@ -136,7 +136,7 @@ extern bool brcmf_c_prec_enq(struct device *dev, struct pktq *q,
 			 struct sk_buff *pkt, int prec);
 
 /* Receive frame for delivery to OS.  Callee disposes of rxp. */
-extern void brcmf_rx_frames(struct device *dev, struct sk_buff_head *rxlist);
+extern void brcmf_rx_frame(struct device *dev, struct sk_buff *rxp);
 
 /* Indication from bus module regarding presence/insertion of dongle. */
 extern int brcmf_attach(uint bus_hdrlen, struct device *dev);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
index e067aec1fbf1..42bf19a2eeee 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_linux.c
@@ -509,9 +509,8 @@ netif_rx:
 	}
 }
 
-void brcmf_rx_frames(struct device *dev, struct sk_buff_head *skb_list)
+void brcmf_rx_frame(struct device *dev, struct sk_buff *skb)
 {
-	struct sk_buff *skb, *pnext;
 	struct brcmf_if *ifp;
 	struct brcmf_bus *bus_if = dev_get_drvdata(dev);
 	struct brcmf_pub *drvr = bus_if->drvr;
@@ -519,29 +518,24 @@ void brcmf_rx_frames(struct device *dev, struct sk_buff_head *skb_list)
 	u8 ifidx;
 	int ret;
 
-	brcmf_dbg(DATA, "Enter: %s: count=%u\n", dev_name(dev),
-		  skb_queue_len(skb_list));
+	brcmf_dbg(DATA, "Enter: %s: rxp=%p\n", dev_name(dev), skb);
 
-	skb_queue_walk_safe(skb_list, skb, pnext) {
-		skb_unlink(skb, skb_list);
-
-		/* process and remove protocol-specific header */
-		ret = brcmf_proto_hdrpull(drvr, true, &ifidx, skb);
-		ifp = drvr->iflist[ifidx];
-
-		if (ret || !ifp || !ifp->ndev) {
-			if ((ret != -ENODATA) && ifp)
-				ifp->stats.rx_errors++;
-			brcmu_pkt_buf_free_skb(skb);
-			continue;
-		}
+	/* process and remove protocol-specific header */
+	ret = brcmf_proto_hdrpull(drvr, true, &ifidx, skb);
+	ifp = drvr->iflist[ifidx];
 
-		rd = (struct brcmf_skb_reorder_data *)skb->cb;
-		if (rd->reorder)
-			brcmf_rxreorder_process_info(ifp, rd->reorder, skb);
-		else
-			brcmf_netif_rx(ifp, skb);
+	if (ret || !ifp || !ifp->ndev) {
+		if ((ret != -ENODATA) && ifp)
+			ifp->stats.rx_errors++;
+		brcmu_pkt_buf_free_skb(skb);
+		return;
 	}
+
+	rd = (struct brcmf_skb_reorder_data *)skb->cb;
+	if (rd->reorder)
+		brcmf_rxreorder_process_info(ifp, rd->reorder, skb);
+	else
+		brcmf_netif_rx(ifp, skb);
 }
 
 void brcmf_txfinalize(struct brcmf_pub *drvr, struct sk_buff *txp,
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
index 6e72b7378f95..67f05db4b9b8 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
@@ -1492,13 +1492,12 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq)
 					   bus->glom.qlen, pfirst, pfirst->data,
 					   pfirst->len, pfirst->next,
 					   pfirst->prev);
+			skb_unlink(pfirst, &bus->glom);
+			brcmf_rx_frame(bus->sdiodev->dev, pfirst);
+			bus->sdcnt.rxglompkts++;
 		}
-		/* sent any remaining packets up */
-		if (bus->glom.qlen)
-			brcmf_rx_frames(bus->sdiodev->dev, &bus->glom);
 
 		bus->sdcnt.rxglomframes++;
-		bus->sdcnt.rxglompkts += bus->glom.qlen;
 	}
 	return num;
 }
@@ -1643,7 +1642,6 @@ static void brcmf_pad(struct brcmf_sdio *bus, u16 *pad, u16 *rdlen)
 static uint brcmf_sdio_readframes(struct brcmf_sdio *bus, uint maxframes)
 {
 	struct sk_buff *pkt;		/* Packet for event or data frames */
-	struct sk_buff_head pktlist;	/* needed for bus interface */
 	u16 pad;		/* Number of pad bytes to read */
 	uint rxleft = 0;	/* Remaining number of frames allowed */
 	int ret;		/* Return code from calls */
@@ -1845,9 +1843,7 @@ static uint brcmf_sdio_readframes(struct brcmf_sdio *bus, uint maxframes)
 			continue;
 		}
 
-		skb_queue_head_init(&pktlist);
-		skb_queue_tail(&pktlist, pkt);
-		brcmf_rx_frames(bus->sdiodev->dev, &pktlist);
+		brcmf_rx_frame(bus->sdiodev->dev, pkt);
 	}
 
 	rxcount = maxframes - rxleft;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/usb.c b/drivers/net/wireless/brcm80211/brcmfmac/usb.c
index 39e01a7c8556..bf6758d95600 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/usb.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/usb.c
@@ -435,7 +435,6 @@ static void brcmf_usb_rx_complete(struct urb *urb)
 	struct brcmf_usbreq  *req = (struct brcmf_usbreq *)urb->context;
 	struct brcmf_usbdev_info *devinfo = req->devinfo;
 	struct sk_buff *skb;
-	struct sk_buff_head skbq;
 
 	brcmf_dbg(USB, "Enter, urb->status=%d\n", urb->status);
 	brcmf_usb_del_fromq(devinfo, req);
@@ -450,10 +449,8 @@ static void brcmf_usb_rx_complete(struct urb *urb)
 	}
 
 	if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP) {
-		skb_queue_head_init(&skbq);
-		skb_queue_tail(&skbq, skb);
 		skb_put(skb, urb->actual_length);
-		brcmf_rx_frames(devinfo->dev, &skbq);
+		brcmf_rx_frame(devinfo->dev, skb);
 		brcmf_usb_rx_refill(devinfo, req);
 	} else {
 		brcmu_pkt_buf_free_skb(skb);
-- 
cgit 


From 3b9b74baa1af2952d719735b4a4a34706a593948 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <sgruszka@redhat.com>
Date: Wed, 25 Sep 2013 15:34:55 +0200
Subject: rt2800: add support for radio chip RF3070

Add support for new RF chip ID: 3070. It seems to be the same as 5370,
maybe vendor just put wrong value on the eeprom, but add this id anyway
since devices with it showed on the marked.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800.h    | 2 ++
 drivers/net/wireless/rt2x00/rt2800lib.c | 8 +++++++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h
index fa33b5edf931..e3eb95292a7f 100644
--- a/drivers/net/wireless/rt2x00/rt2800.h
+++ b/drivers/net/wireless/rt2x00/rt2800.h
@@ -52,6 +52,7 @@
  * RF3322 2.4G 2T2R(RT3352/RT3371/RT3372/RT3391/RT3392)
  * RF3053 2.4G/5G 3T3R(RT3883/RT3563/RT3573/RT3593/RT3662)
  * RF5592 2.4G/5G 2T2R
+ * RF3070 2.4G 1T1R
  * RF5360 2.4G 1T1R
  * RF5370 2.4G 1T1R
  * RF5390 2.4G 1T1R
@@ -70,6 +71,7 @@
 #define RF3322				0x000c
 #define RF3053				0x000d
 #define RF5592				0x000f
+#define RF3070				0x3070
 #define RF3290				0x3290
 #define RF5360				0x5360
 #define RF5370				0x5370
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index f4149782e501..25aaa5e12d4e 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3152,6 +3152,7 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
 	case RF3322:
 		rt2800_config_channel_rf3322(rt2x00dev, conf, rf, info);
 		break;
+	case RF3070:
 	case RF5360:
 	case RF5370:
 	case RF5372:
@@ -3166,7 +3167,8 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
 		rt2800_config_channel_rf2xxx(rt2x00dev, conf, rf, info);
 	}
 
-	if (rt2x00_rf(rt2x00dev, RF3290) ||
+	if (rt2x00_rf(rt2x00dev, RF3070) ||
+	    rt2x00_rf(rt2x00dev, RF3290) ||
 	    rt2x00_rf(rt2x00dev, RF3322) ||
 	    rt2x00_rf(rt2x00dev, RF5360) ||
 	    rt2x00_rf(rt2x00dev, RF5370) ||
@@ -4272,6 +4274,7 @@ void rt2800_vco_calibration(struct rt2x00_dev *rt2x00dev)
 		rt2800_rfcsr_write(rt2x00dev, 7, rfcsr);
 		break;
 	case RF3053:
+	case RF3070:
 	case RF3290:
 	case RF5360:
 	case RF5370:
@@ -7038,6 +7041,7 @@ static int rt2800_init_eeprom(struct rt2x00_dev *rt2x00dev)
 	case RF3022:
 	case RF3052:
 	case RF3053:
+	case RF3070:
 	case RF3290:
 	case RF3320:
 	case RF3322:
@@ -7560,6 +7564,7 @@ static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 		   rt2x00_rf(rt2x00dev, RF2020) ||
 		   rt2x00_rf(rt2x00dev, RF3021) ||
 		   rt2x00_rf(rt2x00dev, RF3022) ||
+		   rt2x00_rf(rt2x00dev, RF3070) ||
 		   rt2x00_rf(rt2x00dev, RF3290) ||
 		   rt2x00_rf(rt2x00dev, RF3320) ||
 		   rt2x00_rf(rt2x00dev, RF3322) ||
@@ -7688,6 +7693,7 @@ static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 	case RF3320:
 	case RF3052:
 	case RF3053:
+	case RF3070:
 	case RF3290:
 	case RF5360:
 	case RF5370:
-- 
cgit 


From adb250b9d252be039c4dd49370fa2296d16ad035 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 25 Sep 2013 12:57:42 -0500
Subject: rtlwifi: rtl8192du: Fix smatch errors in /rtl8192de/dm.c

Smatch lists the following:
  CHECK   drivers/net/wireless/rtlwifi/rtl8192de/dm.c
drivers/net/wireless/rtlwifi/rtl8192de/dm.c:1054 rtl92d_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'ofdm_index' 2 <= 2
drivers/net/wireless/rtlwifi/rtl8192de/dm.c:1056 rtl92d_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'ofdm_index' 2 <= 2
drivers/net/wireless/rtlwifi/rtl8192de/dm.c:1126 rtl92d_dm_txpower_tracking_callback_thermalmeter() debug: remove_pools: nr_children over 4000 (4596). (rtlpriv->dbg.global_debuglevel merged)
drivers/net/wireless/rtlwifi/rtl8192de/dm.c:1126 rtl92d_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'cckswing_table_ch1ch13' 33 <= 255
drivers/net/wireless/rtlwifi/rtl8192de/dm.c:1129 rtl92d_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'cckswing_table_ch1ch13' 33 <= 255
drivers/net/wireless/rtlwifi/rtl8192de/dm.c:1132 rtl92d_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'cckswing_table_ch1ch13' 33 <= 255
drivers/net/wireless/rtlwifi/rtl8192de/dm.c:1135 rtl92d_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'cckswing_table_ch1ch13' 33 <= 255
drivers/net/wireless/rtlwifi/rtl8192de/dm.c:1138 rtl92d_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'cckswing_table_ch1ch13' 33 <= 255
drivers/net/wireless/rtlwifi/rtl8192de/dm.c:1141 rtl92d_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'cckswing_table_ch1ch13' 33 <= 255
drivers/net/wireless/rtlwifi/rtl8192de/dm.c:1144 rtl92d_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'cckswing_table_ch1ch13' 33 <= 255
drivers/net/wireless/rtlwifi/rtl8192de/dm.c:1147 rtl92d_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'cckswing_table_ch1ch13' 33 <= 255
drivers/net/wireless/rtlwifi/rtl8192de/dm.c:1151 rtl92d_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'cckswing_table_ch14' 33 <= 255
drivers/net/wireless/rtlwifi/rtl8192de/dm.c:1154 rtl92d_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'cckswing_table_ch14' 33 <= 255
drivers/net/wireless/rtlwifi/rtl8192de/dm.c:1157 rtl92d_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'cckswing_table_ch14' 33 <= 255
drivers/net/wireless/rtlwifi/rtl8192de/dm.c:1160 rtl92d_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'cckswing_table_ch14' 33 <= 255
drivers/net/wireless/rtlwifi/rtl8192de/dm.c:1163 rtl92d_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'cckswing_table_ch14' 33 <= 255
drivers/net/wireless/rtlwifi/rtl8192de/dm.c:1166 rtl92d_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'cckswing_table_ch14' 33 <= 255
drivers/net/wireless/rtlwifi/rtl8192de/dm.c:1169 rtl92d_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'cckswing_table_ch14' 33 <= 255
drivers/net/wireless/rtlwifi/rtl8192de/dm.c:1172 rtl92d_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'cckswing_table_ch14' 33 <= 255

This patch fixes several off-by-one errors. It also removes a comment
referencing variable 'noise' in the rts_stats struct.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/rtl8192de/dm.c  | 8 ++++++--
 drivers/net/wireless/rtlwifi/rtl8192de/trx.c | 1 -
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/dm.c b/drivers/net/wireless/rtlwifi/rtl8192de/dm.c
index f700f7a614b2..7908e1c85819 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192de/dm.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192de/dm.c
@@ -840,9 +840,9 @@ static void rtl92d_dm_txpower_tracking_callback_thermalmeter(
 	bool internal_pa = false;
 	long ele_a = 0, ele_d, temp_cck, val_x, value32;
 	long val_y, ele_c = 0;
-	u8 ofdm_index[2];
+	u8 ofdm_index[3];
 	s8 cck_index = 0;
-	u8 ofdm_index_old[2] = {0, 0};
+	u8 ofdm_index_old[3] = {0, 0, 0};
 	s8 cck_index_old = 0;
 	u8 index;
 	int i;
@@ -1118,6 +1118,10 @@ static void rtl92d_dm_txpower_tracking_callback_thermalmeter(
 				 val_x, val_y, ele_a, ele_c, ele_d,
 				 val_x, val_y);
 
+			if (cck_index >= CCK_TABLE_SIZE)
+				cck_index = CCK_TABLE_SIZE - 1;
+			if (cck_index < 0)
+				cck_index = 0;
 			if (rtlhal->current_bandtype == BAND_ON_2_4G) {
 				/* Adjust CCK according to IQK result */
 				if (!rtlpriv->dm.cck_inch14) {
diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/trx.c b/drivers/net/wireless/rtlwifi/rtl8192de/trx.c
index b8ec718a0fab..945ddecf90c9 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192de/trx.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192de/trx.c
@@ -526,7 +526,6 @@ bool rtl92de_rx_query_desc(struct ieee80211_hw *hw,	struct rtl_stats *stats,
 	}
 	/*rx_status->qual = stats->signal; */
 	rx_status->signal = stats->rssi + 10;
-	/*rx_status->noise = -stats->noise; */
 	return true;
 }
 
-- 
cgit 


From 857c00773092ce9093e530581ff4bcb521477432 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 25 Sep 2013 12:57:43 -0500
Subject: rtlwifi: rtl8192de: Fix smatch warnings in rtl8192de/hw.c

Smatch lists the following:
  CHECK   drivers/net/wireless/rtlwifi/rtl8192de/hw.c
drivers/net/wireless/rtlwifi/rtl8192de/hw.c:1200 rtl92de_set_qos() info: ignoring unreachable code.
drivers/net/wireless/rtlwifi/rtl8192de/hw.c:1200 rtl92de_set_qos() info: ignoring unreachable code.

The dead code is deleted.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/rtl8192de/hw.c | 18 ------------------
 1 file changed, 18 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/hw.c b/drivers/net/wireless/rtlwifi/rtl8192de/hw.c
index 7dd8f6de0550..c4a7db9135d6 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192de/hw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192de/hw.c
@@ -1194,25 +1194,7 @@ void rtl92d_linked_set_reg(struct ieee80211_hw *hw)
  * mac80211 will send pkt when scan */
 void rtl92de_set_qos(struct ieee80211_hw *hw, int aci)
 {
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
 	rtl92d_dm_init_edca_turbo(hw);
-	return;
-	switch (aci) {
-	case AC1_BK:
-		rtl_write_dword(rtlpriv, REG_EDCA_BK_PARAM, 0xa44f);
-		break;
-	case AC0_BE:
-		break;
-	case AC2_VI:
-		rtl_write_dword(rtlpriv, REG_EDCA_VI_PARAM, 0x5e4322);
-		break;
-	case AC3_VO:
-		rtl_write_dword(rtlpriv, REG_EDCA_VO_PARAM, 0x2f3222);
-		break;
-	default:
-		RT_ASSERT(false, "invalid aci: %d !\n", aci);
-		break;
-	}
 }
 
 void rtl92de_enable_interrupt(struct ieee80211_hw *hw)
-- 
cgit 


From 61800b276142760e59d719de8a63841cd717af9b Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 25 Sep 2013 12:57:44 -0500
Subject: rtlwifi: rtl8192cu: Fix smatch warning in rtl8192cu/trx.c

Smatch lists the following:
  CHECK   drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
drivers/net/wireless/rtlwifi/rtl8192cu/trx.c:367 _rtl_rx_process() warn: assigning (-98) to unsigned variable 'stats.noise'

This variable is unused, thus the initializer is removed, as well as a
comment referring to that variable.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/rtl8192cu/trx.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
index 763cf1defab5..04c7e57dbce2 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
@@ -349,7 +349,6 @@ bool rtl92cu_rx_query_desc(struct ieee80211_hw *hw,
 	}
 	/*rx_status->qual = stats->signal; */
 	rx_status->signal = stats->rssi + 10;
-	/*rx_status->noise = -stats->noise; */
 	return true;
 }
 
@@ -364,7 +363,6 @@ static void _rtl_rx_process(struct ieee80211_hw *hw, struct sk_buff *skb)
 	u8 *rxdesc;
 	struct rtl_stats stats = {
 		.signal = 0,
-		.noise = -98,
 		.rate = 0,
 	};
 	struct rx_fwinfo_92c *p_drvinfo;
-- 
cgit 


From d0df71dcd99935f58012d38b7287312935c44fbd Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 25 Sep 2013 12:57:45 -0500
Subject: rtlwifi: rtl8192_common: Fix smatch errors and warnings in
 rtl8192c/dm_common.c

Smatch lists the following:
  CHECK   drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c
drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c:551 rtl92c_dm_pwdb_monitor() info: ignoring unreachable code.
drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c:551 rtl92c_dm_pwdb_monitor() info: ignoring unreachable code.
drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c:870 rtl92c_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'txpwr_level' 2 <= 2
drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c:870 rtl92c_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'txpwr_level' 2 <= 2
drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c:882 rtl92c_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'txpwr_level' 2 <= 2
drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c:883 rtl92c_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'txpwr_level' 2 <= 2
drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c:891 rtl92c_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'txpwr_level' 2 <= 2
drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c:892 rtl92c_dm_txpower_tracking_callback_thermalmeter() error: buffer overflow 'txpwr_level' 2 <= 2

The unreachable code message is fixed by deleting the code that follows a return.

The errors are fixed by increasing the size of txpwr_level.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c | 25 +----------------------
 1 file changed, 1 insertion(+), 24 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c b/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c
index d2d57a27a7c1..e9caa5d4cff0 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192c/dm_common.c
@@ -541,29 +541,6 @@ EXPORT_SYMBOL(rtl92c_dm_write_dig);
 
 static void rtl92c_dm_pwdb_monitor(struct ieee80211_hw *hw)
 {
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	long tmpentry_max_pwdb = 0, tmpentry_min_pwdb = 0xff;
-
-	u8 h2c_parameter[3] = { 0 };
-
-	return;
-
-	if (tmpentry_max_pwdb != 0) {
-		rtlpriv->dm.entry_max_undec_sm_pwdb = tmpentry_max_pwdb;
-	} else {
-		rtlpriv->dm.entry_max_undec_sm_pwdb = 0;
-	}
-
-	if (tmpentry_min_pwdb != 0xff) {
-		rtlpriv->dm.entry_min_undec_sm_pwdb = tmpentry_min_pwdb;
-	} else {
-		rtlpriv->dm.entry_min_undec_sm_pwdb = 0;
-	}
-
-	h2c_parameter[2] = (u8) (rtlpriv->dm.undec_sm_pwdb & 0xFF);
-	h2c_parameter[0] = 0;
-
-	rtl92c_fill_h2c_cmd(hw, H2C_RSSI_REPORT, 3, h2c_parameter);
 }
 
 void rtl92c_dm_init_edca_turbo(struct ieee80211_hw *hw)
@@ -673,7 +650,7 @@ static void rtl92c_dm_txpower_tracking_callback_thermalmeter(struct ieee80211_hw
 	s8 cck_index = 0;
 	int i;
 	bool is2t = IS_92C_SERIAL(rtlhal->version);
-	s8 txpwr_level[2] = {0, 0};
+	s8 txpwr_level[3] = {0, 0, 0};
 	u8 ofdm_min_index = 6, rf;
 
 	rtlpriv->dm.txpower_trackinginit = true;
-- 
cgit 


From a3557d4d485322ebc60ca7f11616695c5dd69383 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 25 Sep 2013 12:57:46 -0500
Subject: rtlwifi: Fix smatch warning in pci.c

Smatch reports the following:
  CHECK   drivers/net/wireless/rtlwifi/pci.c
drivers/net/wireless/rtlwifi/pci.c:739 _rtl_pci_rx_interrupt() warn: assigning (-98) to unsigned variable 'stats.noise'

The variable 'stats.noise' is not used. That initializer is removed.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/pci.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/wireless/rtlwifi/pci.c b/drivers/net/wireless/rtlwifi/pci.c
index 2b6d3e0afef0..0f494444bcd1 100644
--- a/drivers/net/wireless/rtlwifi/pci.c
+++ b/drivers/net/wireless/rtlwifi/pci.c
@@ -736,7 +736,6 @@ static void _rtl_pci_rx_interrupt(struct ieee80211_hw *hw)
 
 	struct rtl_stats stats = {
 		.signal = 0,
-		.noise = -98,
 		.rate = 0,
 	};
 	int index = rtlpci->rx_ring[rx_queue_idx].idx;
-- 
cgit 


From 354d0f3c40fb40193213e40f3177ff528798ca8d Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 25 Sep 2013 12:57:47 -0500
Subject: rtlwifi: Fix smatch warnings in usb.c

Smatch displays the following:
  CHECK   drivers/net/wireless/rtlwifi/usb.c
drivers/net/wireless/rtlwifi/usb.c:458 _rtl_usb_rx_process_agg() warn: assigning (-98) to unsigned variable 'stats.noise'
drivers/net/wireless/rtlwifi/usb.c:503 _rtl_usb_rx_process_noagg() warn: assigning (-98) to unsigned variable 'stats.noise'
drivers/net/wireless/rtlwifi/usb.c:596 _rtl_rx_get_padding() info: ignoring unreachable code.
drivers/net/wireless/rtlwifi/usb.c:596 _rtl_rx_get_padding() info: ignoring unreachable code.

The variable 'stats.noise' is not used, thus the initializers are removed.
The unreachable code info is fixed by including the appropriate section inside
#ifdef .. #endif constructions.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/usb.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/usb.c b/drivers/net/wireless/rtlwifi/usb.c
index e56778cac9bf..6e2b5c5c83c8 100644
--- a/drivers/net/wireless/rtlwifi/usb.c
+++ b/drivers/net/wireless/rtlwifi/usb.c
@@ -455,7 +455,6 @@ static void _rtl_usb_rx_process_agg(struct ieee80211_hw *hw,
 	struct ieee80211_rx_status rx_status = {0};
 	struct rtl_stats stats = {
 		.signal = 0,
-		.noise = -98,
 		.rate = 0,
 	};
 
@@ -498,7 +497,6 @@ static void _rtl_usb_rx_process_noagg(struct ieee80211_hw *hw,
 	struct ieee80211_rx_status rx_status = {0};
 	struct rtl_stats stats = {
 		.signal = 0,
-		.noise = -98,
 		.rate = 0,
 	};
 
@@ -582,12 +580,15 @@ static void _rtl_rx_work(unsigned long param)
 static unsigned int _rtl_rx_get_padding(struct ieee80211_hdr *hdr,
 					unsigned int len)
 {
+#if NET_IP_ALIGN != 0
 	unsigned int padding = 0;
+#endif
 
 	/* make function no-op when possible */
 	if (NET_IP_ALIGN == 0 || len < sizeof(*hdr))
 		return 0;
 
+#if NET_IP_ALIGN != 0
 	/* alignment calculation as in lbtf_rx() / carl9170_rx_copy_data() */
 	/* TODO: deduplicate common code, define helper function instead? */
 
@@ -608,6 +609,7 @@ static unsigned int _rtl_rx_get_padding(struct ieee80211_hdr *hdr,
 		padding ^= NET_IP_ALIGN;
 
 	return padding;
+#endif
 }
 
 #define __RADIO_TAP_SIZE_RSV	32
-- 
cgit 


From dab3df5e88b979f8d09860f873ccfaa7a55758d2 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 25 Sep 2013 12:57:48 -0500
Subject: rtlwifi: rtl8188ee: Fix smatch warning in rtl8188ee/hw.c

Smatch lists the following:
  CHECK   drivers/net/wireless/rtlwifi/rtl8188ee/hw.c
drivers/net/wireless/rtlwifi/rtl8188ee/hw.c:149 _rtl88ee_set_fw_clock_on() info: ignoring unreachable code.
drivers/net/wireless/rtlwifi/rtl8188ee/hw.c:149 _rtl88ee_set_fw_clock_on() info: ignoring unreachable code.

This info message is the result of a real error due to a missing break statement
in a "while (1)" loop.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> [3.10+]
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/rtl8188ee/hw.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/rtlwifi/rtl8188ee/hw.c b/drivers/net/wireless/rtlwifi/rtl8188ee/hw.c
index b68cae3024fc..e06971be7df7 100644
--- a/drivers/net/wireless/rtlwifi/rtl8188ee/hw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8188ee/hw.c
@@ -143,6 +143,7 @@ static void _rtl88ee_set_fw_clock_on(struct ieee80211_hw *hw,
 		} else {
 			rtlhal->fw_clk_change_in_progress = false;
 			spin_unlock_bh(&rtlpriv->locks.fw_ps_lock);
+			break;
 		}
 	}
 
-- 
cgit 


From c6d372998415f3c4bc45737b63bbed6d82b2d956 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 25 Sep 2013 12:57:49 -0500
Subject: rtlwifi: Remove all remaining references to variable 'noise' in
 rtl_stats struct

This completes removal of all places that reference variable 'noise'
in the rtl_stats struct. The definition of the struct is unchanged.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/rtl8188ee/trx.c | 1 -
 drivers/net/wireless/rtlwifi/rtl8192ce/trx.c | 1 -
 drivers/net/wireless/rtlwifi/rtl8192se/trx.c | 1 -
 drivers/net/wireless/rtlwifi/rtl8723ae/trx.c | 1 -
 4 files changed, 4 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/rtl8188ee/trx.c b/drivers/net/wireless/rtlwifi/rtl8188ee/trx.c
index 68685a898257..aece6c9cccf1 100644
--- a/drivers/net/wireless/rtlwifi/rtl8188ee/trx.c
+++ b/drivers/net/wireless/rtlwifi/rtl8188ee/trx.c
@@ -478,7 +478,6 @@ bool rtl88ee_rx_query_desc(struct ieee80211_hw *hw,
 
 	/*rx_status->qual = status->signal; */
 	rx_status->signal = status->recvsignalpower + 10;
-	/*rx_status->noise = -status->noise; */
 	if (status->packet_report_type == TX_REPORT2) {
 		status->macid_valid_entry[0] =
 			 GET_RX_RPT2_DESC_MACID_VALID_1(pdesc);
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/trx.c b/drivers/net/wireless/rtlwifi/rtl8192ce/trx.c
index 6ad23b413eb3..52abf0a862fa 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/trx.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/trx.c
@@ -420,7 +420,6 @@ bool rtl92ce_rx_query_desc(struct ieee80211_hw *hw,
 
 	/*rx_status->qual = stats->signal; */
 	rx_status->signal = stats->recvsignalpower + 10;
-	/*rx_status->noise = -stats->noise; */
 
 	return true;
 }
diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/trx.c b/drivers/net/wireless/rtlwifi/rtl8192se/trx.c
index c7095118de6e..222d2e792ca6 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192se/trx.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192se/trx.c
@@ -330,7 +330,6 @@ bool rtl92se_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats,
 
 	/*rx_status->qual = stats->signal; */
 	rx_status->signal = stats->rssi + 10;
-	/*rx_status->noise = -stats->noise; */
 
 	return true;
 }
diff --git a/drivers/net/wireless/rtlwifi/rtl8723ae/trx.c b/drivers/net/wireless/rtlwifi/rtl8723ae/trx.c
index bcd82a1020a5..50b7be3f3a60 100644
--- a/drivers/net/wireless/rtlwifi/rtl8723ae/trx.c
+++ b/drivers/net/wireless/rtlwifi/rtl8723ae/trx.c
@@ -359,7 +359,6 @@ bool rtl8723ae_rx_query_desc(struct ieee80211_hw *hw,
 
 	/*rx_status->qual = status->signal; */
 	rx_status->signal = status->recvsignalpower + 10;
-	/*rx_status->noise = -status->noise; */
 
 	return true;
 }
-- 
cgit 


From 4f4826da8cae59c167fc730b5db6f0659c2d37ce Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Thu, 26 Sep 2013 13:25:27 -0500
Subject: rtlwifi: Implement a common rtl_phy_scan_operation_backup() routine

Several of the drivers supported by rtlwifi individually implement the same
routine that supports scans. As a first step, create this routine in
driver rtlwifi.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/base.c | 29 +++++++++++++++++++++++++++++
 drivers/net/wireless/rtlwifi/base.h |  1 +
 2 files changed, 30 insertions(+)

diff --git a/drivers/net/wireless/rtlwifi/base.c b/drivers/net/wireless/rtlwifi/base.c
index 8bb4a9a01a18..9a78e3daf742 100644
--- a/drivers/net/wireless/rtlwifi/base.c
+++ b/drivers/net/wireless/rtlwifi/base.c
@@ -1613,6 +1613,35 @@ err_free:
 }
 EXPORT_SYMBOL(rtl_send_smps_action);
 
+void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
+{
+	struct rtl_priv *rtlpriv = rtl_priv(hw);
+	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
+	enum io_type iotype;
+
+	if (!is_hal_stop(rtlhal)) {
+		switch (operation) {
+		case SCAN_OPT_BACKUP:
+			iotype = IO_CMD_PAUSE_DM_BY_SCAN;
+			rtlpriv->cfg->ops->set_hw_reg(hw,
+						      HW_VAR_IO_CMD,
+						      (u8 *)&iotype);
+			break;
+		case SCAN_OPT_RESTORE:
+			iotype = IO_CMD_RESUME_DM_BY_SCAN;
+			rtlpriv->cfg->ops->set_hw_reg(hw,
+						      HW_VAR_IO_CMD,
+						      (u8 *)&iotype);
+			break;
+		default:
+			RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
+				 "Unknown Scan Backup operation.\n");
+			break;
+		}
+	}
+}
+EXPORT_SYMBOL(rtl_phy_scan_operation_backup);
+
 /* There seem to be issues in mac80211 regarding when del ba frames can be
  * received. As a work around, we make a fake del_ba if we receive a ba_req;
  * however, rx_agg was opened to let mac80211 release some ba related
diff --git a/drivers/net/wireless/rtlwifi/base.h b/drivers/net/wireless/rtlwifi/base.h
index c07f114e7d1b..0cd07420777a 100644
--- a/drivers/net/wireless/rtlwifi/base.h
+++ b/drivers/net/wireless/rtlwifi/base.h
@@ -152,5 +152,6 @@ int rtlwifi_rate_mapping(struct ieee80211_hw *hw,
 bool rtl_tx_mgmt_proc(struct ieee80211_hw *hw, struct sk_buff *skb);
 struct sk_buff *rtl_make_del_ba(struct ieee80211_hw *hw,
 				u8 *sa, u8 *bssid, u16 tid);
+void rtl_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation);
 
 #endif
-- 
cgit 


From 5784935dd7d308f15d8600536cfffae9813f16ff Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Thu, 26 Sep 2013 13:25:28 -0500
Subject: rtlwifi: rtl8192cu: Convert to use new
 rtl_phy_scan_operation_backup() routine

Now that the routine exists in driver rtlwifi, convert rtl8192cu to use it.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/rtl8192cu/sw.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c
index 2bd598526217..9936de716ad5 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c
@@ -31,6 +31,7 @@
 #include "../core.h"
 #include "../usb.h"
 #include "../efuse.h"
+#include "../base.h"
 #include "reg.h"
 #include "def.h"
 #include "phy.h"
@@ -117,7 +118,7 @@ static struct rtl_hal_ops rtl8192cu_hal_ops = {
 	.set_bw_mode = rtl92c_phy_set_bw_mode,
 	.switch_channel = rtl92c_phy_sw_chnl,
 	.dm_watchdog = rtl92c_dm_watchdog,
-	.scan_operation_backup = rtl92c_phy_scan_operation_backup,
+	.scan_operation_backup = rtl_phy_scan_operation_backup,
 	.set_rf_power_state = rtl92cu_phy_set_rf_power_state,
 	.led_control = rtl92cu_led_control,
 	.enable_hw_sec = rtl92cu_enable_hw_security_config,
-- 
cgit 


From fe806d04d0ed02f87549d2a1a2372e703220b376 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sat, 7 Sep 2013 09:19:25 +0200
Subject: ARM: OMAP: remove deprecated IRQF_DISABLED

This patch proposes to remove the IRQF_DISABLED flag from OMAP code
It's a NOOP since 2.6.35, and will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap1/fpga.c     | 3 +--
 arch/arm/mach-omap1/pm.c       | 1 -
 arch/arm/mach-omap1/time.c     | 2 +-
 arch/arm/mach-omap1/timer32k.c | 2 +-
 arch/arm/mach-omap2/timer.c    | 2 +-
 arch/arm/plat-omap/dma.c       | 1 -
 6 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/arch/arm/mach-omap1/fpga.c b/arch/arm/mach-omap1/fpga.c
index 8bd71b2d0967..3c0e42219200 100644
--- a/arch/arm/mach-omap1/fpga.c
+++ b/arch/arm/mach-omap1/fpga.c
@@ -135,8 +135,7 @@ static struct irq_chip omap_fpga_irq = {
  * mask_ack routine for all of the FPGA interrupts has been changed from
  * fpga_mask_ack_irq() to fpga_ack_irq() so that the specific FPGA interrupt
  * being serviced is left unmasked.  We can do this because the FPGA cascade
- * interrupt is installed with the IRQF_DISABLED flag, which leaves all
- * interrupts masked at the CPU while an FPGA interrupt handler executes.
+ * interrupt is run with all interrupts masked.
  *
  * Limited testing indicates that this workaround appears to be effective
  * for the smc9194 Ethernet driver used on the Innovator.  It should work
diff --git a/arch/arm/mach-omap1/pm.c b/arch/arm/mach-omap1/pm.c
index 358b82cb9f78..40a1ae319610 100644
--- a/arch/arm/mach-omap1/pm.c
+++ b/arch/arm/mach-omap1/pm.c
@@ -628,7 +628,6 @@ static irqreturn_t omap_wakeup_interrupt(int irq, void *dev)
 
 static struct irqaction omap_wakeup_irq = {
 	.name		= "peripheral wakeup",
-	.flags		= IRQF_DISABLED,
 	.handler	= omap_wakeup_interrupt
 };
 
diff --git a/arch/arm/mach-omap1/time.c b/arch/arm/mach-omap1/time.c
index 80603d2fef77..6b5f298d6638 100644
--- a/arch/arm/mach-omap1/time.c
+++ b/arch/arm/mach-omap1/time.c
@@ -160,7 +160,7 @@ static irqreturn_t omap_mpu_timer1_interrupt(int irq, void *dev_id)
 
 static struct irqaction omap_mpu_timer1_irq = {
 	.name		= "mpu_timer1",
-	.flags		= IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
+	.flags		= IRQF_TIMER | IRQF_IRQPOLL,
 	.handler	= omap_mpu_timer1_interrupt,
 };
 
diff --git a/arch/arm/mach-omap1/timer32k.c b/arch/arm/mach-omap1/timer32k.c
index 0b74246ba62c..107e7ab3edba 100644
--- a/arch/arm/mach-omap1/timer32k.c
+++ b/arch/arm/mach-omap1/timer32k.c
@@ -156,7 +156,7 @@ static irqreturn_t omap_32k_timer_interrupt(int irq, void *dev_id)
 
 static struct irqaction omap_32k_timer_irq = {
 	.name		= "32KHz timer",
-	.flags		= IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
+	.flags		= IRQF_TIMER | IRQF_IRQPOLL,
 	.handler	= omap_32k_timer_interrupt,
 };
 
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index fa74a0625da1..038d384ac228 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -78,7 +78,7 @@ static irqreturn_t omap2_gp_timer_interrupt(int irq, void *dev_id)
 
 static struct irqaction omap2_gp_timer_irq = {
 	.name		= "gp_timer",
-	.flags		= IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
+	.flags		= IRQF_TIMER | IRQF_IRQPOLL,
 	.handler	= omap2_gp_timer_interrupt,
 };
 
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index 037660633fa4..01619c2910e3 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -1965,7 +1965,6 @@ static irqreturn_t omap2_dma_irq_handler(int irq, void *dev_id)
 static struct irqaction omap24xx_dma_irq = {
 	.name = "DMA",
 	.handler = omap2_dma_irq_handler,
-	.flags = IRQF_DISABLED
 };
 
 #else
-- 
cgit 


From f8e7ba662ce365d4fecb9002a30bdbc97a4e9a40 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Mon, 30 Sep 2013 15:05:25 +0200
Subject: ARM: OMAP1: fix incorrect placement of __initdata tag

__initdata tag should be placed between the variable name and equal
sign for the variable to be placed in the intended .init.data section.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap1/gpio15xx.c |  8 ++++----
 arch/arm/mach-omap1/gpio16xx.c | 22 +++++++++++-----------
 arch/arm/mach-omap1/gpio7xx.c  | 30 +++++++++++++++---------------
 3 files changed, 30 insertions(+), 30 deletions(-)

diff --git a/arch/arm/mach-omap1/gpio15xx.c b/arch/arm/mach-omap1/gpio15xx.c
index 02b3eb2e201c..420e94bfdc6e 100644
--- a/arch/arm/mach-omap1/gpio15xx.c
+++ b/arch/arm/mach-omap1/gpio15xx.c
@@ -25,7 +25,7 @@
 #define OMAP1510_GPIO_BASE		0xFFFCE000
 
 /* gpio1 */
-static struct __initdata resource omap15xx_mpu_gpio_resources[] = {
+static struct resource omap15xx_mpu_gpio_resources[] __initdata = {
 	{
 		.start	= OMAP1_MPUIO_VBASE,
 		.end	= OMAP1_MPUIO_VBASE + SZ_2K - 1,
@@ -48,7 +48,7 @@ static struct omap_gpio_reg_offs omap15xx_mpuio_regs = {
 	.irqctrl	= OMAP_MPUIO_GPIO_INT_EDGE,
 };
 
-static struct __initdata omap_gpio_platform_data omap15xx_mpu_gpio_config = {
+static struct omap_gpio_platform_data omap15xx_mpu_gpio_config __initdata = {
 	.is_mpuio		= true,
 	.bank_width		= 16,
 	.bank_stride		= 1,
@@ -66,7 +66,7 @@ static struct platform_device omap15xx_mpu_gpio = {
 };
 
 /* gpio2 */
-static struct __initdata resource omap15xx_gpio_resources[] = {
+static struct resource omap15xx_gpio_resources[] __initdata = {
 	{
 		.start	= OMAP1510_GPIO_BASE,
 		.end	= OMAP1510_GPIO_BASE + SZ_2K - 1,
@@ -90,7 +90,7 @@ static struct omap_gpio_reg_offs omap15xx_gpio_regs = {
 	.pinctrl	= OMAP1510_GPIO_PIN_CONTROL,
 };
 
-static struct __initdata omap_gpio_platform_data omap15xx_gpio_config = {
+static struct omap_gpio_platform_data omap15xx_gpio_config __initdata = {
 	.bank_width		= 16,
 	.regs                   = &omap15xx_gpio_regs,
 };
diff --git a/arch/arm/mach-omap1/gpio16xx.c b/arch/arm/mach-omap1/gpio16xx.c
index b9952a258d82..16e7fcf63edf 100644
--- a/arch/arm/mach-omap1/gpio16xx.c
+++ b/arch/arm/mach-omap1/gpio16xx.c
@@ -31,7 +31,7 @@
 #define SYSCONFIG_WORD			0x14
 
 /* mpu gpio */
-static struct __initdata resource omap16xx_mpu_gpio_resources[] = {
+static struct resource omap16xx_mpu_gpio_resources[] __initdata = {
 	{
 		.start	= OMAP1_MPUIO_VBASE,
 		.end	= OMAP1_MPUIO_VBASE + SZ_2K - 1,
@@ -54,7 +54,7 @@ static struct omap_gpio_reg_offs omap16xx_mpuio_regs = {
 	.irqctrl	= OMAP_MPUIO_GPIO_INT_EDGE,
 };
 
-static struct __initdata omap_gpio_platform_data omap16xx_mpu_gpio_config = {
+static struct omap_gpio_platform_data omap16xx_mpu_gpio_config __initdata = {
 	.is_mpuio		= true,
 	.bank_width		= 16,
 	.bank_stride		= 1,
@@ -72,7 +72,7 @@ static struct platform_device omap16xx_mpu_gpio = {
 };
 
 /* gpio1 */
-static struct __initdata resource omap16xx_gpio1_resources[] = {
+static struct resource omap16xx_gpio1_resources[] __initdata = {
 	{
 		.start	= OMAP1610_GPIO1_BASE,
 		.end	= OMAP1610_GPIO1_BASE + SZ_2K - 1,
@@ -100,7 +100,7 @@ static struct omap_gpio_reg_offs omap16xx_gpio_regs = {
 	.edgectrl2	= OMAP1610_GPIO_EDGE_CTRL2,
 };
 
-static struct __initdata omap_gpio_platform_data omap16xx_gpio1_config = {
+static struct omap_gpio_platform_data omap16xx_gpio1_config __initdata = {
 	.bank_width		= 16,
 	.regs                   = &omap16xx_gpio_regs,
 };
@@ -116,7 +116,7 @@ static struct platform_device omap16xx_gpio1 = {
 };
 
 /* gpio2 */
-static struct __initdata resource omap16xx_gpio2_resources[] = {
+static struct resource omap16xx_gpio2_resources[] __initdata = {
 	{
 		.start	= OMAP1610_GPIO2_BASE,
 		.end	= OMAP1610_GPIO2_BASE + SZ_2K - 1,
@@ -128,7 +128,7 @@ static struct __initdata resource omap16xx_gpio2_resources[] = {
 	},
 };
 
-static struct __initdata omap_gpio_platform_data omap16xx_gpio2_config = {
+static struct omap_gpio_platform_data omap16xx_gpio2_config __initdata = {
 	.bank_width		= 16,
 	.regs                   = &omap16xx_gpio_regs,
 };
@@ -144,7 +144,7 @@ static struct platform_device omap16xx_gpio2 = {
 };
 
 /* gpio3 */
-static struct __initdata resource omap16xx_gpio3_resources[] = {
+static struct resource omap16xx_gpio3_resources[] __initdata = {
 	{
 		.start	= OMAP1610_GPIO3_BASE,
 		.end	= OMAP1610_GPIO3_BASE + SZ_2K - 1,
@@ -156,7 +156,7 @@ static struct __initdata resource omap16xx_gpio3_resources[] = {
 	},
 };
 
-static struct __initdata omap_gpio_platform_data omap16xx_gpio3_config = {
+static struct omap_gpio_platform_data omap16xx_gpio3_config __initdata = {
 	.bank_width		= 16,
 	.regs                   = &omap16xx_gpio_regs,
 };
@@ -172,7 +172,7 @@ static struct platform_device omap16xx_gpio3 = {
 };
 
 /* gpio4 */
-static struct __initdata resource omap16xx_gpio4_resources[] = {
+static struct resource omap16xx_gpio4_resources[] __initdata = {
 	{
 		.start	= OMAP1610_GPIO4_BASE,
 		.end	= OMAP1610_GPIO4_BASE + SZ_2K - 1,
@@ -184,7 +184,7 @@ static struct __initdata resource omap16xx_gpio4_resources[] = {
 	},
 };
 
-static struct __initdata omap_gpio_platform_data omap16xx_gpio4_config = {
+static struct omap_gpio_platform_data omap16xx_gpio4_config __initdata = {
 	.bank_width		= 16,
 	.regs                   = &omap16xx_gpio_regs,
 };
@@ -199,7 +199,7 @@ static struct platform_device omap16xx_gpio4 = {
 	.resource = omap16xx_gpio4_resources,
 };
 
-static struct __initdata platform_device * omap16xx_gpio_dev[] = {
+static struct platform_device *omap16xx_gpio_dev[] __initdata = {
 	&omap16xx_mpu_gpio,
 	&omap16xx_gpio1,
 	&omap16xx_gpio2,
diff --git a/arch/arm/mach-omap1/gpio7xx.c b/arch/arm/mach-omap1/gpio7xx.c
index f5819b2b7cbe..8136fdc89130 100644
--- a/arch/arm/mach-omap1/gpio7xx.c
+++ b/arch/arm/mach-omap1/gpio7xx.c
@@ -30,7 +30,7 @@
 #define OMAP1_MPUIO_VBASE		OMAP1_MPUIO_BASE
 
 /* mpu gpio */
-static struct __initdata resource omap7xx_mpu_gpio_resources[] = {
+static struct resource omap7xx_mpu_gpio_resources[] __initdata = {
 	{
 		.start	= OMAP1_MPUIO_VBASE,
 		.end	= OMAP1_MPUIO_VBASE + SZ_2K - 1,
@@ -53,7 +53,7 @@ static struct omap_gpio_reg_offs omap7xx_mpuio_regs = {
 	.irqctrl	= OMAP_MPUIO_GPIO_INT_EDGE >> 1,
 };
 
-static struct __initdata omap_gpio_platform_data omap7xx_mpu_gpio_config = {
+static struct omap_gpio_platform_data omap7xx_mpu_gpio_config __initdata = {
 	.is_mpuio		= true,
 	.bank_width		= 16,
 	.bank_stride		= 2,
@@ -71,7 +71,7 @@ static struct platform_device omap7xx_mpu_gpio = {
 };
 
 /* gpio1 */
-static struct __initdata resource omap7xx_gpio1_resources[] = {
+static struct resource omap7xx_gpio1_resources[] __initdata = {
 	{
 		.start	= OMAP7XX_GPIO1_BASE,
 		.end	= OMAP7XX_GPIO1_BASE + SZ_2K - 1,
@@ -94,7 +94,7 @@ static struct omap_gpio_reg_offs omap7xx_gpio_regs = {
 	.irqctrl	= OMAP7XX_GPIO_INT_CONTROL,
 };
 
-static struct __initdata omap_gpio_platform_data omap7xx_gpio1_config = {
+static struct omap_gpio_platform_data omap7xx_gpio1_config __initdata = {
 	.bank_width		= 32,
 	.regs			= &omap7xx_gpio_regs,
 };
@@ -110,7 +110,7 @@ static struct platform_device omap7xx_gpio1 = {
 };
 
 /* gpio2 */
-static struct __initdata resource omap7xx_gpio2_resources[] = {
+static struct resource omap7xx_gpio2_resources[] __initdata = {
 	{
 		.start	= OMAP7XX_GPIO2_BASE,
 		.end	= OMAP7XX_GPIO2_BASE + SZ_2K - 1,
@@ -122,7 +122,7 @@ static struct __initdata resource omap7xx_gpio2_resources[] = {
 	},
 };
 
-static struct __initdata omap_gpio_platform_data omap7xx_gpio2_config = {
+static struct omap_gpio_platform_data omap7xx_gpio2_config __initdata = {
 	.bank_width		= 32,
 	.regs			= &omap7xx_gpio_regs,
 };
@@ -138,7 +138,7 @@ static struct platform_device omap7xx_gpio2 = {
 };
 
 /* gpio3 */
-static struct __initdata resource omap7xx_gpio3_resources[] = {
+static struct resource omap7xx_gpio3_resources[] __initdata = {
 	{
 		.start	= OMAP7XX_GPIO3_BASE,
 		.end	= OMAP7XX_GPIO3_BASE + SZ_2K - 1,
@@ -150,7 +150,7 @@ static struct __initdata resource omap7xx_gpio3_resources[] = {
 	},
 };
 
-static struct __initdata omap_gpio_platform_data omap7xx_gpio3_config = {
+static struct omap_gpio_platform_data omap7xx_gpio3_config __initdata = {
 	.bank_width		= 32,
 	.regs			= &omap7xx_gpio_regs,
 };
@@ -166,7 +166,7 @@ static struct platform_device omap7xx_gpio3 = {
 };
 
 /* gpio4 */
-static struct __initdata resource omap7xx_gpio4_resources[] = {
+static struct resource omap7xx_gpio4_resources[] __initdata = {
 	{
 		.start	= OMAP7XX_GPIO4_BASE,
 		.end	= OMAP7XX_GPIO4_BASE + SZ_2K - 1,
@@ -178,7 +178,7 @@ static struct __initdata resource omap7xx_gpio4_resources[] = {
 	},
 };
 
-static struct __initdata omap_gpio_platform_data omap7xx_gpio4_config = {
+static struct omap_gpio_platform_data omap7xx_gpio4_config __initdata = {
 	.bank_width		= 32,
 	.regs			= &omap7xx_gpio_regs,
 };
@@ -194,7 +194,7 @@ static struct platform_device omap7xx_gpio4 = {
 };
 
 /* gpio5 */
-static struct __initdata resource omap7xx_gpio5_resources[] = {
+static struct resource omap7xx_gpio5_resources[] __initdata = {
 	{
 		.start	= OMAP7XX_GPIO5_BASE,
 		.end	= OMAP7XX_GPIO5_BASE + SZ_2K - 1,
@@ -206,7 +206,7 @@ static struct __initdata resource omap7xx_gpio5_resources[] = {
 	},
 };
 
-static struct __initdata omap_gpio_platform_data omap7xx_gpio5_config = {
+static struct omap_gpio_platform_data omap7xx_gpio5_config __initdata = {
 	.bank_width		= 32,
 	.regs			= &omap7xx_gpio_regs,
 };
@@ -222,7 +222,7 @@ static struct platform_device omap7xx_gpio5 = {
 };
 
 /* gpio6 */
-static struct __initdata resource omap7xx_gpio6_resources[] = {
+static struct resource omap7xx_gpio6_resources[] __initdata = {
 	{
 		.start	= OMAP7XX_GPIO6_BASE,
 		.end	= OMAP7XX_GPIO6_BASE + SZ_2K - 1,
@@ -234,7 +234,7 @@ static struct __initdata resource omap7xx_gpio6_resources[] = {
 	},
 };
 
-static struct __initdata omap_gpio_platform_data omap7xx_gpio6_config = {
+static struct omap_gpio_platform_data omap7xx_gpio6_config __initdata = {
 	.bank_width		= 32,
 	.regs			= &omap7xx_gpio_regs,
 };
@@ -249,7 +249,7 @@ static struct platform_device omap7xx_gpio6 = {
 	.resource = omap7xx_gpio6_resources,
 };
 
-static struct __initdata platform_device * omap7xx_gpio_dev[] = {
+static struct platform_device *omap7xx_gpio_dev[] __initdata = {
 	&omap7xx_mpu_gpio,
 	&omap7xx_gpio1,
 	&omap7xx_gpio2,
-- 
cgit 


From 05308a6e98e9812c1c6ac64efb16f424d2efd3cb Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 29 Sep 2013 10:50:59 +0200
Subject: media: s5c73m3: Don't use i2c_client->driver

The 'driver' field of the i2c_client struct is redundant and is going to be
removed. The results of the expressions 'client->driver.driver->field' and
'client->dev.driver->field' are identical, so replace all occurrences of the
former with the later.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/media/i2c/s5c73m3/s5c73m3-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/i2c/s5c73m3/s5c73m3-core.c b/drivers/media/i2c/s5c73m3/s5c73m3-core.c
index b76ec0e7e685..1083890ac5a9 100644
--- a/drivers/media/i2c/s5c73m3/s5c73m3-core.c
+++ b/drivers/media/i2c/s5c73m3/s5c73m3-core.c
@@ -1581,7 +1581,7 @@ static int s5c73m3_probe(struct i2c_client *client,
 	oif_sd = &state->oif_sd;
 
 	v4l2_subdev_init(sd, &s5c73m3_subdev_ops);
-	sd->owner = client->driver->driver.owner;
+	sd->owner = client->dev.driver->owner;
 	v4l2_set_subdevdata(sd, state);
 	strlcpy(sd->name, "S5C73M3", sizeof(sd->name));
 
-- 
cgit 


From c7110f375be6609e9130c684aeda75bcfb771289 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 29 Sep 2013 10:51:00 +0200
Subject: media: exynos4-is: Don't use i2c_client->driver

The 'driver' field of the i2c_client struct is redundant and is going to be
removed. The results of the expressions 'client->driver.driver->field' and
'client->dev.driver->field' are identical, so replace all occurrences of the
former with the later.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/media/platform/exynos4-is/media-dev.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/exynos4-is/media-dev.c b/drivers/media/platform/exynos4-is/media-dev.c
index a83511278317..7a4ee4c0449d 100644
--- a/drivers/media/platform/exynos4-is/media-dev.c
+++ b/drivers/media/platform/exynos4-is/media-dev.c
@@ -411,8 +411,8 @@ static int fimc_md_of_add_sensor(struct fimc_md *fmd,
 
 	device_lock(&client->dev);
 
-	if (!client->driver ||
-	    !try_module_get(client->driver->driver.owner)) {
+	if (!client->dev.driver ||
+	    !try_module_get(client->dev.driver->owner)) {
 		ret = -EPROBE_DEFER;
 		v4l2_info(&fmd->v4l2_dev, "No driver found for %s\n",
 						node->full_name);
@@ -442,7 +442,7 @@ static int fimc_md_of_add_sensor(struct fimc_md *fmd,
 	fmd->num_sensors++;
 
 mod_put:
-	module_put(client->driver->driver.owner);
+	module_put(client->dev.driver->owner);
 dev_put:
 	device_unlock(&client->dev);
 	put_device(&client->dev);
-- 
cgit 


From f9d32f25084ce7a27f966a0e71eae6ee0fe2f5ab Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 29 Sep 2013 10:51:01 +0200
Subject: media: core: Don't use i2c_client->driver

The 'driver' field of the i2c_client struct is redundant and is going to be
removed. The results of the expressions 'client->driver.driver->field' and
'client->dev.driver->field' are identical, so replace all occurrences of the
former with the later.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/media/v4l2-core/tuner-core.c  |  6 +++---
 drivers/media/v4l2-core/v4l2-common.c | 10 +++++-----
 include/media/v4l2-common.h           |  2 +-
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/media/v4l2-core/tuner-core.c b/drivers/media/v4l2-core/tuner-core.c
index ddc9379eb276..4133af01774a 100644
--- a/drivers/media/v4l2-core/tuner-core.c
+++ b/drivers/media/v4l2-core/tuner-core.c
@@ -43,7 +43,7 @@
 
 #define UNSET (-1U)
 
-#define PREFIX (t->i2c->driver->driver.name)
+#define PREFIX (t->i2c->dev.driver->name)
 
 /*
  * Driver modprobe parameters
@@ -452,7 +452,7 @@ static void set_type(struct i2c_client *c, unsigned int type,
 	}
 
 	tuner_dbg("%s %s I2C addr 0x%02x with type %d used for 0x%02x\n",
-		  c->adapter->name, c->driver->driver.name, c->addr << 1, type,
+		  c->adapter->name, c->dev.driver->name, c->addr << 1, type,
 		  t->mode_mask);
 	return;
 
@@ -556,7 +556,7 @@ static void tuner_lookup(struct i2c_adapter *adap,
 		int mode_mask;
 
 		if (pos->i2c->adapter != adap ||
-		    strcmp(pos->i2c->driver->driver.name, "tuner"))
+		    strcmp(pos->i2c->dev.driver->name, "tuner"))
 			continue;
 
 		mode_mask = pos->mode_mask;
diff --git a/drivers/media/v4l2-core/v4l2-common.c b/drivers/media/v4l2-core/v4l2-common.c
index 037d7a55aa8c..433d6d77942e 100644
--- a/drivers/media/v4l2-core/v4l2-common.c
+++ b/drivers/media/v4l2-core/v4l2-common.c
@@ -236,14 +236,14 @@ void v4l2_i2c_subdev_init(struct v4l2_subdev *sd, struct i2c_client *client,
 	v4l2_subdev_init(sd, ops);
 	sd->flags |= V4L2_SUBDEV_FL_IS_I2C;
 	/* the owner is the same as the i2c_client's driver owner */
-	sd->owner = client->driver->driver.owner;
+	sd->owner = client->dev.driver->owner;
 	sd->dev = &client->dev;
 	/* i2c_client and v4l2_subdev point to one another */
 	v4l2_set_subdevdata(sd, client);
 	i2c_set_clientdata(client, sd);
 	/* initialize name */
 	snprintf(sd->name, sizeof(sd->name), "%s %d-%04x",
-		client->driver->driver.name, i2c_adapter_id(client->adapter),
+		client->dev.driver->name, i2c_adapter_id(client->adapter),
 		client->addr);
 }
 EXPORT_SYMBOL_GPL(v4l2_i2c_subdev_init);
@@ -274,11 +274,11 @@ struct v4l2_subdev *v4l2_i2c_new_subdev_board(struct v4l2_device *v4l2_dev,
 	   loaded. This delay-load mechanism doesn't work if other drivers
 	   want to use the i2c device, so explicitly loading the module
 	   is the best alternative. */
-	if (client == NULL || client->driver == NULL)
+	if (client == NULL || client->dev.driver == NULL)
 		goto error;
 
 	/* Lock the module so we can safely get the v4l2_subdev pointer */
-	if (!try_module_get(client->driver->driver.owner))
+	if (!try_module_get(client->dev.driver->owner))
 		goto error;
 	sd = i2c_get_clientdata(client);
 
@@ -287,7 +287,7 @@ struct v4l2_subdev *v4l2_i2c_new_subdev_board(struct v4l2_device *v4l2_dev,
 	if (v4l2_device_register_subdev(v4l2_dev, sd))
 		sd = NULL;
 	/* Decrease the module use count to match the first try_module_get. */
-	module_put(client->driver->driver.owner);
+	module_put(client->dev.driver->owner);
 
 error:
 	/* If we have a client but no subdev, then something went wrong and
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index 16550c439008..a707529841e2 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -35,7 +35,7 @@
 	printk(level "%s %d-%04x: " fmt, name, i2c_adapter_id(adapter), addr , ## arg)
 
 #define v4l_client_printk(level, client, fmt, arg...)			    \
-	v4l_printk(level, (client)->driver->driver.name, (client)->adapter, \
+	v4l_printk(level, (client)->dev.driver->name, (client)->adapter, \
 		   (client)->addr, fmt , ## arg)
 
 #define v4l_err(client, fmt, arg...) \
-- 
cgit 


From 3ee81b7aefcc4d5c031dcac5df8683cadc7b6ee2 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 29 Sep 2013 10:51:02 +0200
Subject: drm: encoder_slave: Don't use i2c_client->driver

The 'driver' field of the i2c_client struct is redundant and is going to be
removed. The results of the expressions 'client->driver.driver->field' and
'client->dev.driver->field' are identical, so replace all occurrences of the
former with the later. To get direct access to the i2c_driver struct use
'to_i2c_driver(client->dev.driver)'.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/gpu/drm/drm_encoder_slave.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/drm_encoder_slave.c b/drivers/gpu/drm/drm_encoder_slave.c
index 0cfb60f54766..d18b88b755c3 100644
--- a/drivers/gpu/drm/drm_encoder_slave.c
+++ b/drivers/gpu/drm/drm_encoder_slave.c
@@ -67,12 +67,12 @@ int drm_i2c_encoder_init(struct drm_device *dev,
 		goto fail;
 	}
 
-	if (!client->driver) {
+	if (!client->dev.driver) {
 		err = -ENODEV;
 		goto fail_unregister;
 	}
 
-	module = client->driver->driver.owner;
+	module = client->dev.driver->owner;
 	if (!try_module_get(module)) {
 		err = -ENODEV;
 		goto fail_unregister;
@@ -80,7 +80,7 @@ int drm_i2c_encoder_init(struct drm_device *dev,
 
 	encoder->bus_priv = client;
 
-	encoder_drv = to_drm_i2c_encoder_driver(client->driver);
+	encoder_drv = to_drm_i2c_encoder_driver(to_i2c_driver(client->dev.driver));
 
 	err = encoder_drv->encoder_init(client, dev, encoder);
 	if (err)
@@ -111,7 +111,7 @@ void drm_i2c_encoder_destroy(struct drm_encoder *drm_encoder)
 {
 	struct drm_encoder_slave *encoder = to_encoder_slave(drm_encoder);
 	struct i2c_client *client = drm_i2c_encoder_get_client(drm_encoder);
-	struct module *module = client->driver->driver.owner;
+	struct module *module = client->dev.driver->owner;
 
 	i2c_unregister_device(client);
 	encoder->bus_priv = NULL;
-- 
cgit 


From 395c994264bba13b5de73d0a8da6842df8ac47bf Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 29 Sep 2013 10:51:03 +0200
Subject: drm: nouveau: Don't use i2c_client->driver

The 'driver' field of the i2c_client struct is redundant and is going to be
removed. Use 'to_i2c_driver(client->dev.driver)' instead to get direct access to
the i2c_driver struct.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Martin Peres <martin.peres@labri.fr>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/gpu/drm/nouveau/core/subdev/therm/ic.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c b/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c
index 8b3adec5fbb1..eae939d3fc1a 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/therm/ic.c
@@ -41,7 +41,8 @@ probe_monitoring_device(struct nouveau_i2c_port *i2c,
 	if (!client)
 		return false;
 
-	if (!client->driver || client->driver->detect(client, info)) {
+	if (!client->dev.driver ||
+	    to_i2c_driver(client->dev.driver)->detect(client, info)) {
 		i2c_unregister_device(client);
 		return false;
 	}
-- 
cgit 


From a7cde6d25c494e1bc8c4f89d3096b2fe077c5416 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 29 Sep 2013 10:51:04 +0200
Subject: ALSA: ppc: keywest: Don't use i2c_client->driver

The 'driver' field of the i2c_client struct is redundant and is going to be
removed. Use 'to_i2c_driver(client->dev.driver)' instead to get direct
access to the i2c_driver struct.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 sound/ppc/keywest.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/ppc/keywest.c b/sound/ppc/keywest.c
index 01aecc2b5073..0d1c27e911b8 100644
--- a/sound/ppc/keywest.c
+++ b/sound/ppc/keywest.c
@@ -65,7 +65,7 @@ static int keywest_attach_adapter(struct i2c_adapter *adapter)
 	 * already bound. If not it means binding failed, and then there
 	 * is no point in keeping the device instantiated.
 	 */
-	if (!keywest_ctx->client->driver) {
+	if (!keywest_ctx->client->dev.driver) {
 		i2c_unregister_device(keywest_ctx->client);
 		keywest_ctx->client = NULL;
 		return -ENODEV;
@@ -76,7 +76,7 @@ static int keywest_attach_adapter(struct i2c_adapter *adapter)
 	 * This is safe because i2c-core holds the core_lock mutex for us.
 	 */
 	list_add_tail(&keywest_ctx->client->detected,
-		      &keywest_ctx->client->driver->clients);
+		      &to_i2c_driver(keywest_ctx->client->dev.driver)->clients);
 	return 0;
 }
 
-- 
cgit 


From 40df24997f947ab5b745d570d56a003705868dcc Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 29 Sep 2013 10:51:05 +0200
Subject: ASoC: imx-wm8962: Don't use i2c_client->driver

The 'driver' field of the i2c_client struct is redundant and is going to be
removed. Check i2c_client->dev.driver instead to see if a driver is bound to the
device.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 sound/soc/fsl/imx-wm8962.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/fsl/imx-wm8962.c b/sound/soc/fsl/imx-wm8962.c
index 722afe69169e..cd106aa39984 100644
--- a/sound/soc/fsl/imx-wm8962.c
+++ b/sound/soc/fsl/imx-wm8962.c
@@ -215,7 +215,7 @@ static int imx_wm8962_probe(struct platform_device *pdev)
 		goto fail;
 	}
 	codec_dev = of_find_i2c_device_by_node(codec_np);
-	if (!codec_dev || !codec_dev->driver) {
+	if (!codec_dev || !codec_dev->dev.driver) {
 		dev_err(&pdev->dev, "failed to find codec platform device\n");
 		ret = -EINVAL;
 		goto fail;
-- 
cgit 


From 0acc2b321342aa813fa9fc485afb09fbc811f594 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 29 Sep 2013 10:51:06 +0200
Subject: i2c: Remove redundant 'driver' field from the i2c_client struct

The 'driver' field of the i2c_client struct is redundant. The same data can be
accessed through to_i2c_driver(client->dev.driver). The generated code for both
approaches in more or less the same.

E.g. on ARM the expression client->driver->command(...) generates

		...
		ldr     r3, [r0, #28]
		ldr     r3, [r3, #32]
		blx     r3
		...

and the expression to_i2c_driver(client->dev.driver)->command(...) generates

		...
		ldr     r3, [r0, #160]
    	ldr     r3, [r3, #-4]
    	blx     r3
		...

Other architectures will generate similar code.

All users of the 'driver' field outside of the I2C core have already been
converted. So this only leaves the core itself. This patch converts the
remaining few users in the I2C core and then removes the 'driver' field from the
i2c_client struct.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/i2c-core.c  | 21 ++++++++++++---------
 drivers/i2c/i2c-smbus.c | 10 ++++++----
 include/linux/i2c.h     |  2 --
 3 files changed, 18 insertions(+), 15 deletions(-)

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 29d3f045a2bf..430c001b3f1e 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -248,17 +248,16 @@ static int i2c_device_probe(struct device *dev)
 	driver = to_i2c_driver(dev->driver);
 	if (!driver->probe || !driver->id_table)
 		return -ENODEV;
-	client->driver = driver;
+
 	if (!device_can_wakeup(&client->dev))
 		device_init_wakeup(&client->dev,
 					client->flags & I2C_CLIENT_WAKE);
 	dev_dbg(dev, "probe\n");
 
 	status = driver->probe(client, i2c_match_id(driver->id_table, client));
-	if (status) {
-		client->driver = NULL;
+	if (status)
 		i2c_set_clientdata(client, NULL);
-	}
+
 	return status;
 }
 
@@ -279,10 +278,9 @@ static int i2c_device_remove(struct device *dev)
 		dev->driver = NULL;
 		status = 0;
 	}
-	if (status == 0) {
-		client->driver = NULL;
+	if (status == 0)
 		i2c_set_clientdata(client, NULL);
-	}
+
 	return status;
 }
 
@@ -1606,9 +1604,14 @@ static int i2c_cmd(struct device *dev, void *_arg)
 {
 	struct i2c_client	*client = i2c_verify_client(dev);
 	struct i2c_cmd_arg	*arg = _arg;
+	struct i2c_driver	*driver;
+
+	if (!client || !client->dev.driver)
+		return 0;
 
-	if (client && client->driver && client->driver->command)
-		client->driver->command(client, arg->cmd, arg->arg);
+	driver = to_i2c_driver(client->dev.driver);
+	if (driver->command)
+		driver->command(client, arg->cmd, arg->arg);
 	return 0;
 }
 
diff --git a/drivers/i2c/i2c-smbus.c b/drivers/i2c/i2c-smbus.c
index 44d4c6071c15..c99b22987366 100644
--- a/drivers/i2c/i2c-smbus.c
+++ b/drivers/i2c/i2c-smbus.c
@@ -46,6 +46,7 @@ static int smbus_do_alert(struct device *dev, void *addrp)
 {
 	struct i2c_client *client = i2c_verify_client(dev);
 	struct alert_data *data = addrp;
+	struct i2c_driver *driver;
 
 	if (!client || client->addr != data->addr)
 		return 0;
@@ -54,12 +55,13 @@ static int smbus_do_alert(struct device *dev, void *addrp)
 
 	/*
 	 * Drivers should either disable alerts, or provide at least
-	 * a minimal handler.  Lock so client->driver won't change.
+	 * a minimal handler.  Lock so the driver won't change.
 	 */
 	device_lock(dev);
-	if (client->driver) {
-		if (client->driver->alert)
-			client->driver->alert(client, data->flag);
+	if (client->dev.driver) {
+		driver = to_i2c_driver(client->dev.driver);
+		if (driver->alert)
+			driver->alert(client, data->flag);
 		else
 			dev_warn(&client->dev, "no driver alert()!\n");
 	} else
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 2ab11dc38077..eff50e062be8 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -205,7 +205,6 @@ struct i2c_driver {
  * @name: Indicates the type of the device, usually a chip name that's
  *	generic enough to hide second-sourcing and compatible revisions.
  * @adapter: manages the bus segment hosting this I2C device
- * @driver: device's driver, hence pointer to access routines
  * @dev: Driver model device node for the slave.
  * @irq: indicates the IRQ generated by this device (if any)
  * @detected: member of an i2c_driver.clients list or i2c-core's
@@ -222,7 +221,6 @@ struct i2c_client {
 					/* _LOWER_ 7 bits		*/
 	char name[I2C_NAME_SIZE];
 	struct i2c_adapter *adapter;	/* the adapter we sit on	*/
-	struct i2c_driver *driver;	/* and our access routines	*/
 	struct device dev;		/* the device structure		*/
 	int irq;			/* irq issued by device		*/
 	struct list_head detected;
-- 
cgit 


From 3764eb72a514cad27ab09fa0b8e591b2b8b7a70b Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Thu, 26 Sep 2013 13:25:29 -0500
Subject: rtlwifi: rtl8192ce: Convert driver to use new
 rtl_phy_scan_operation_backup() routine

Now that rtl_phy_scan_operation_backup() exists, convert rtl8192ce to use it.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/rtl8192ce/phy.h | 2 --
 drivers/net/wireless/rtlwifi/rtl8192ce/sw.c  | 3 ++-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/phy.h b/drivers/net/wireless/rtlwifi/rtl8192ce/phy.h
index 80a0893efb4e..aeb268b190c6 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/phy.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/phy.h
@@ -207,8 +207,6 @@ void rtl92c_phy_get_txpower_level(struct ieee80211_hw *hw,
 void rtl92c_phy_set_txpower_level(struct ieee80211_hw *hw, u8 channel);
 bool rtl92c_phy_update_txpower_dbm(struct ieee80211_hw *hw,
 					  long power_indbm);
-void rtl92c_phy_scan_operation_backup(struct ieee80211_hw *hw,
-					     u8 operation);
 void rtl92c_phy_set_bw_mode(struct ieee80211_hw *hw,
 				   enum nl80211_channel_type ch_type);
 void rtl92c_phy_sw_chnl_callback(struct ieee80211_hw *hw);
diff --git a/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c b/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c
index 14203561b6ee..b790320d2030 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192ce/sw.c
@@ -30,6 +30,7 @@
 #include "../wifi.h"
 #include "../core.h"
 #include "../pci.h"
+#include "../base.h"
 #include "reg.h"
 #include "def.h"
 #include "phy.h"
@@ -219,7 +220,7 @@ static struct rtl_hal_ops rtl8192ce_hal_ops = {
 	.set_bw_mode = rtl92c_phy_set_bw_mode,
 	.switch_channel = rtl92c_phy_sw_chnl,
 	.dm_watchdog = rtl92c_dm_watchdog,
-	.scan_operation_backup = rtl92c_phy_scan_operation_backup,
+	.scan_operation_backup = rtl_phy_scan_operation_backup,
 	.set_rf_power_state = rtl92c_phy_set_rf_power_state,
 	.led_control = rtl92ce_led_control,
 	.set_desc = rtl92ce_set_desc,
-- 
cgit 


From 0d1cdce2f555c9d52e7dfcd85fa15736e79aed56 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Thu, 26 Sep 2013 13:25:30 -0500
Subject: rtlwifi: rtl8192c: Remove rtl8192c_phy_scan_operation_backup()

Drivers rtl8192ce and rtl8192cu no longer rely on this routine. It is removed.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c | 30 ----------------------
 drivers/net/wireless/rtlwifi/rtl8192c/phy_common.h |  2 --
 2 files changed, 32 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c b/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c
index 246e5352f2e1..0c0e78263a66 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c
@@ -592,36 +592,6 @@ long _rtl92c_phy_txpwr_idx_to_dbm(struct ieee80211_hw *hw,
 }
 EXPORT_SYMBOL(_rtl92c_phy_txpwr_idx_to_dbm);
 
-void rtl92c_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
-	enum io_type iotype;
-
-	if (!is_hal_stop(rtlhal)) {
-		switch (operation) {
-		case SCAN_OPT_BACKUP:
-			iotype = IO_CMD_PAUSE_DM_BY_SCAN;
-			rtlpriv->cfg->ops->set_hw_reg(hw,
-						      HW_VAR_IO_CMD,
-						      (u8 *)&iotype);
-
-			break;
-		case SCAN_OPT_RESTORE:
-			iotype = IO_CMD_RESUME_DM_BY_SCAN;
-			rtlpriv->cfg->ops->set_hw_reg(hw,
-						      HW_VAR_IO_CMD,
-						      (u8 *)&iotype);
-			break;
-		default:
-			RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
-				 "Unknown Scan Backup operation\n");
-			break;
-		}
-	}
-}
-EXPORT_SYMBOL(rtl92c_phy_scan_operation_backup);
-
 void rtl92c_phy_set_bw_mode(struct ieee80211_hw *hw,
 			    enum nl80211_channel_type ch_type)
 {
diff --git a/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.h b/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.h
index 24957e2a8370..e79dabe9ba1d 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.h
@@ -203,8 +203,6 @@ void rtl92c_phy_get_txpower_level(struct ieee80211_hw *hw,
 void rtl92c_phy_set_txpower_level(struct ieee80211_hw *hw, u8 channel);
 bool rtl92c_phy_update_txpower_dbm(struct ieee80211_hw *hw,
 					  long power_indbm);
-void rtl92c_phy_scan_operation_backup(struct ieee80211_hw *hw,
-					     u8 operation);
 void rtl92c_phy_set_bw_mode(struct ieee80211_hw *hw,
 				   enum nl80211_channel_type ch_type);
 void rtl92c_phy_sw_chnl_callback(struct ieee80211_hw *hw);
-- 
cgit 


From 6483033ad8b5bbc1d2c9cd6556b6c35a563409ae Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Thu, 26 Sep 2013 13:25:31 -0500
Subject: rtlwifi: rtl8192ce: Convert driver to use new
 rtl_phy_scan_operation_backup() routine

Now that rtl_phy_scan_operation_backup() exists, convert rtl8192de to use it.
Routine rtl92d_phy_scan_operation_backup() is no longer used and is removed.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/rtl8192de/phy.c | 28 ----------------------------
 drivers/net/wireless/rtlwifi/rtl8192de/phy.h |  2 --
 drivers/net/wireless/rtlwifi/rtl8192de/sw.c  |  3 ++-
 3 files changed, 2 insertions(+), 31 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/phy.c b/drivers/net/wireless/rtlwifi/rtl8192de/phy.c
index 840bac5fa2f8..13196cc4b1d3 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192de/phy.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192de/phy.c
@@ -1022,34 +1022,6 @@ void rtl92d_phy_set_txpower_level(struct ieee80211_hw *hw, u8 channel)
 	rtl92d_phy_rf6052_set_ofdm_txpower(hw, &ofdmpowerlevel[0], channel);
 }
 
-void rtl92d_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
-	enum io_type iotype;
-
-	if (!is_hal_stop(rtlhal)) {
-		switch (operation) {
-		case SCAN_OPT_BACKUP:
-			rtlhal->current_bandtypebackup =
-						 rtlhal->current_bandtype;
-			iotype = IO_CMD_PAUSE_DM_BY_SCAN;
-			rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_IO_CMD,
-						      (u8 *)&iotype);
-			break;
-		case SCAN_OPT_RESTORE:
-			iotype = IO_CMD_RESUME_DM_BY_SCAN;
-			rtlpriv->cfg->ops->set_hw_reg(hw, HW_VAR_IO_CMD,
-						      (u8 *)&iotype);
-			break;
-		default:
-			RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
-				 "Unknown Scan Backup operation\n");
-			break;
-		}
-	}
-}
-
 void rtl92d_phy_set_bw_mode(struct ieee80211_hw *hw,
 			    enum nl80211_channel_type ch_type)
 {
diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/phy.h b/drivers/net/wireless/rtlwifi/rtl8192de/phy.h
index a66232efcbf6..bef3040555dd 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192de/phy.h
+++ b/drivers/net/wireless/rtlwifi/rtl8192de/phy.h
@@ -142,8 +142,6 @@ extern bool rtl92c_phy_config_rf_with_feaderfile(struct ieee80211_hw *hw,
 						 enum radio_path rfpath);
 extern void rtl92d_phy_get_hw_reg_originalvalue(struct ieee80211_hw *hw);
 extern void rtl92d_phy_set_txpower_level(struct ieee80211_hw *hw, u8 channel);
-extern void rtl92d_phy_scan_operation_backup(struct ieee80211_hw *hw,
-					     u8 operation);
 extern void rtl92d_phy_set_bw_mode(struct ieee80211_hw *hw,
 				   enum nl80211_channel_type ch_type);
 extern u8 rtl92d_phy_sw_chnl(struct ieee80211_hw *hw);
diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/sw.c b/drivers/net/wireless/rtlwifi/rtl8192de/sw.c
index c18c04bf0c13..edab5a5351b5 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192de/sw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192de/sw.c
@@ -30,6 +30,7 @@
 #include "../wifi.h"
 #include "../core.h"
 #include "../pci.h"
+#include "../base.h"
 #include "reg.h"
 #include "def.h"
 #include "phy.h"
@@ -236,7 +237,7 @@ static struct rtl_hal_ops rtl8192de_hal_ops = {
 	.set_bw_mode = rtl92d_phy_set_bw_mode,
 	.switch_channel = rtl92d_phy_sw_chnl,
 	.dm_watchdog = rtl92d_dm_watchdog,
-	.scan_operation_backup = rtl92d_phy_scan_operation_backup,
+	.scan_operation_backup = rtl_phy_scan_operation_backup,
 	.set_rf_power_state = rtl92d_phy_set_rf_power_state,
 	.led_control = rtl92de_led_control,
 	.set_desc = rtl92de_set_desc,
-- 
cgit 


From 9be317e69e088ffe78aea5bd3dafa3f7b4feb77b Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Tue, 1 Oct 2013 23:43:09 +0300
Subject: staging: octeon-usb: delete redundant flags from
 cvmx_usb_initialize()

The function will always figure out the used clock internally, so delete
a redudant parameter and the flag.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/cvmx-usb.c   | 52 +++++++++++++--------------------
 drivers/staging/octeon-usb/cvmx-usb.h   | 10 ++-----
 drivers/staging/octeon-usb/octeon-hcd.c |  2 +-
 3 files changed, 25 insertions(+), 39 deletions(-)

diff --git a/drivers/staging/octeon-usb/cvmx-usb.c b/drivers/staging/octeon-usb/cvmx-usb.c
index 45dfe94199ae..22efd592a46c 100644
--- a/drivers/staging/octeon-usb/cvmx-usb.c
+++ b/drivers/staging/octeon-usb/cvmx-usb.c
@@ -552,20 +552,15 @@ static inline void __cvmx_usb_remove_pipe(struct cvmx_usb_pipe_list *list, struc
  *		 functions.
  * @usb_port_number:
  *		 Which Octeon USB port to initialize.
- * @flags:	 Flags to control hardware initialization. See
- *		 enum cvmx_usb_initialize_flags for the flag
- *		 definitions. Some flags are mandatory.
  *
  * Returns: 0 or a negative error code.
  */
-int cvmx_usb_initialize(struct cvmx_usb_state *state, int usb_port_number,
-			enum cvmx_usb_initialize_flags flags)
+int cvmx_usb_initialize(struct cvmx_usb_state *state, int usb_port_number)
 {
 	union cvmx_usbnx_clk_ctl usbn_clk_ctl;
 	union cvmx_usbnx_usbp_ctl_status usbn_usbp_ctl_status;
 	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
-
-	usb->init_flags = flags;
+	enum cvmx_usb_initialize_flags flags = 0;
 
 	/* Make sure that state is large enough to store the internal state */
 	if (sizeof(*state) < sizeof(*usb))
@@ -577,31 +572,26 @@ int cvmx_usb_initialize(struct cvmx_usb_state *state, int usb_port_number,
 	if (!OCTEON_IS_MODEL(OCTEON_CN52XX) && (usb_port_number > 0))
 		return -EINVAL;
 	/* Try to determine clock type automatically */
-	if ((flags & (CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_XI |
-		      CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_GND)) == 0) {
-		if (octeon_usb_get_clock_type() == USB_CLOCK_TYPE_CRYSTAL_12)
-			flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_XI;  /* Only 12 MHZ crystals are supported */
-		else
-			flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_GND;
-	}
+	if (octeon_usb_get_clock_type() == USB_CLOCK_TYPE_CRYSTAL_12) {
+		/* Only 12 MHZ crystals are supported */
+		flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_XI;
+	} else {
+		flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_GND;
 
-	if (flags & CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_GND) {
-		/* Check for auto ref clock frequency */
-		if (!(flags & CVMX_USB_INITIALIZE_FLAGS_CLOCK_MHZ_MASK))
-			switch (octeon_usb_get_clock_type()) {
-			case USB_CLOCK_TYPE_REF_12:
-				flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_12MHZ;
-				break;
-			case USB_CLOCK_TYPE_REF_24:
-				flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_24MHZ;
-				break;
-			case USB_CLOCK_TYPE_REF_48:
-				flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_48MHZ;
-				break;
-			default:
-				return -EINVAL;
-				break;
-			}
+		switch (octeon_usb_get_clock_type()) {
+		case USB_CLOCK_TYPE_REF_12:
+			flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_12MHZ;
+			break;
+		case USB_CLOCK_TYPE_REF_24:
+			flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_24MHZ;
+			break;
+		case USB_CLOCK_TYPE_REF_48:
+			flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_48MHZ;
+			break;
+		default:
+			return -EINVAL;
+			break;
+		}
 	}
 
 	memset(usb, 0, sizeof(*usb));
diff --git a/drivers/staging/octeon-usb/cvmx-usb.h b/drivers/staging/octeon-usb/cvmx-usb.h
index 8bf36966ef15..74edb0a72e83 100644
--- a/drivers/staging/octeon-usb/cvmx-usb.h
+++ b/drivers/staging/octeon-usb/cvmx-usb.h
@@ -427,7 +427,7 @@ typedef void (*cvmx_usb_callback_func_t)(struct cvmx_usb_state *state,
                                          int bytes_transferred, void *user_data);
 
 /**
- * enum cvmx_usb_initialize_flags - flags to pass the initialization function
+ * enum cvmx_usb_initialize_flags - flags used by the initialization function
  *
  * @CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_XI:    The USB port uses a 12MHz crystal
  *					      as clock source at USB_XO and
@@ -435,9 +435,6 @@ typedef void (*cvmx_usb_callback_func_t)(struct cvmx_usb_state *state,
  * @CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_GND:   The USB port uses 12/24/48MHz 2.5V
  *					      board clock source at USB_XO.
  *					      USB_XI should be tied to GND.
- * @CVMX_USB_INITIALIZE_FLAGS_CLOCK_AUTO:     Automatically determine clock type
- *					      based on function in
- *					      cvmx-helper-board.c.
  * @CVMX_USB_INITIALIZE_FLAGS_CLOCK_MHZ_MASK: Mask for clock speed field
  * @CVMX_USB_INITIALIZE_FLAGS_CLOCK_12MHZ:    Speed of reference clock or
  *					      crystal
@@ -449,7 +446,6 @@ typedef void (*cvmx_usb_callback_func_t)(struct cvmx_usb_state *state,
 enum cvmx_usb_initialize_flags {
 	CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_XI		= 1 << 0,
 	CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_GND		= 1 << 1,
-	CVMX_USB_INITIALIZE_FLAGS_CLOCK_AUTO		= 0,
 	CVMX_USB_INITIALIZE_FLAGS_CLOCK_MHZ_MASK	= 3 << 3,
 	CVMX_USB_INITIALIZE_FLAGS_CLOCK_12MHZ		= 1 << 3,
 	CVMX_USB_INITIALIZE_FLAGS_CLOCK_24MHZ		= 2 << 3,
@@ -477,8 +473,8 @@ enum cvmx_usb_pipe_flags {
 };
 
 extern int cvmx_usb_get_num_ports(void);
-extern int cvmx_usb_initialize(struct cvmx_usb_state *state, int usb_port_number,
-			       enum cvmx_usb_initialize_flags flags);
+extern int cvmx_usb_initialize(struct cvmx_usb_state *state,
+			       int usb_port_number);
 extern int cvmx_usb_shutdown(struct cvmx_usb_state *state);
 extern int cvmx_usb_enable(struct cvmx_usb_state *state);
 extern int cvmx_usb_disable(struct cvmx_usb_state *state);
diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 5dbbd14ec615..9b9cc1f6be78 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -705,7 +705,7 @@ static int octeon_usb_driver_probe(struct device *dev)
 	tasklet_init(&priv->dequeue_tasklet, octeon_usb_urb_dequeue_work, (unsigned long)priv);
 	INIT_LIST_HEAD(&priv->dequeue_list);
 
-	status = cvmx_usb_initialize(&priv->usb, usb_num, CVMX_USB_INITIALIZE_FLAGS_CLOCK_AUTO);
+	status = cvmx_usb_initialize(&priv->usb, usb_num);
 	if (status) {
 		dev_dbg(dev, "USB initialization failed with %d\n", status);
 		kfree(hcd);
-- 
cgit 


From 5dc0316c1bcc1f0db1bf42bfbe242401f954c932 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Tue, 1 Oct 2013 23:43:10 +0300
Subject: staging: octeon-usb: delete cvmx_usb_isochronous_flags

Delete unused flags.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/cvmx-usb.c   |  9 ++-------
 drivers/staging/octeon-usb/cvmx-usb.h   | 17 +----------------
 drivers/staging/octeon-usb/octeon-hcd.c |  1 -
 3 files changed, 3 insertions(+), 24 deletions(-)

diff --git a/drivers/staging/octeon-usb/cvmx-usb.c b/drivers/staging/octeon-usb/cvmx-usb.c
index 22efd592a46c..f9a68012b56a 100644
--- a/drivers/staging/octeon-usb/cvmx-usb.c
+++ b/drivers/staging/octeon-usb/cvmx-usb.c
@@ -2349,9 +2349,6 @@ int cvmx_usb_submit_control(struct cvmx_usb_state *state, int pipe_handle,
  * @start_frame:
  *		    Number of frames into the future to schedule
  *		    this transaction.
- * @flags:	    Flags to control the transfer. See
- *		    enum cvmx_usb_isochronous_flags for the flag
- *		    definitions.
  * @number_packets:
  *		    Number of sequential packets to transfer.
  *		    "packets" is a pointer to an array of this
@@ -2384,7 +2381,7 @@ int cvmx_usb_submit_control(struct cvmx_usb_state *state, int pipe_handle,
  *	    failure. Negative values are error codes.
  */
 int cvmx_usb_submit_isochronous(struct cvmx_usb_state *state, int pipe_handle,
-				int start_frame, int flags,
+				int start_frame,
 				int number_packets,
 				struct cvmx_usb_iso_packet packets[],
 				uint64_t buffer, int buffer_length,
@@ -2397,8 +2394,6 @@ int cvmx_usb_submit_isochronous(struct cvmx_usb_state *state, int pipe_handle,
 	/* Pipe handle checking is done later in a common place */
 	if (unlikely(start_frame < 0))
 		return -EINVAL;
-	if (unlikely(flags & ~(CVMX_USB_ISOCHRONOUS_FLAGS_ALLOW_SHORT | CVMX_USB_ISOCHRONOUS_FLAGS_ASAP)))
-		return -EINVAL;
 	if (unlikely(number_packets < 1))
 		return -EINVAL;
 	if (unlikely(!packets))
@@ -2410,7 +2405,7 @@ int cvmx_usb_submit_isochronous(struct cvmx_usb_state *state, int pipe_handle,
 
 	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
 						      CVMX_USB_TRANSFER_ISOCHRONOUS,
-						      flags,
+						      0,
 						      buffer,
 						      buffer_length,
 						      0, /* control_header */
diff --git a/drivers/staging/octeon-usb/cvmx-usb.h b/drivers/staging/octeon-usb/cvmx-usb.h
index 74edb0a72e83..6fc54911687c 100644
--- a/drivers/staging/octeon-usb/cvmx-usb.h
+++ b/drivers/staging/octeon-usb/cvmx-usb.h
@@ -502,23 +502,8 @@ extern int cvmx_usb_submit_control(struct cvmx_usb_state *state, int pipe_handle
                                    cvmx_usb_callback_func_t callback,
                                    void *user_data);
 
-/**
- * enum cvmx_usb_isochronous_flags - flags to pass the
- *				     cvmx_usb_submit_isochronous() function.
- *
- * @CVMX_USB_ISOCHRONOUS_FLAGS_ALLOW_SHORT: Do not return an error if a transfer
- *					    is less than the maximum packet size
- *					    of the device.
- * @CVMX_USB_ISOCHRONOUS_FLAGS_ASAP:	    Schedule the transaction as soon as
- *					    possible.
- */
-enum cvmx_usb_isochronous_flags {
-	CVMX_USB_ISOCHRONOUS_FLAGS_ALLOW_SHORT	= 1 << 0,
-	CVMX_USB_ISOCHRONOUS_FLAGS_ASAP		= 1 << 1,
-};
-
 extern int cvmx_usb_submit_isochronous(struct cvmx_usb_state *state, int pipe_handle,
-                                       int start_frame, int flags,
+				       int start_frame,
                                        int number_packets,
                                        struct cvmx_usb_iso_packet packets[],
                                        uint64_t buffer, int buffer_length,
diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 9b9cc1f6be78..f238d1bc4332 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -325,7 +325,6 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 			urb->setup_packet = (char *)iso_packet;
 			submit_handle = cvmx_usb_submit_isochronous(&priv->usb, pipe_handle,
 							urb->start_frame,
-							0 /* flags */ ,
 							urb->number_of_packets,
 							iso_packet,
 							urb->transfer_dma,
-- 
cgit 


From 951a444c61e21e900e7adc0e599b1e6fd4686c1c Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Tue, 1 Oct 2013 23:43:11 +0300
Subject: staging: octeon-usb: delete redundant flags from
 __cvmx_usb_submit_transaction()

Delete redundant flags parameter.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/cvmx-usb.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/staging/octeon-usb/cvmx-usb.c b/drivers/staging/octeon-usb/cvmx-usb.c
index f9a68012b56a..54b5c5c42ad3 100644
--- a/drivers/staging/octeon-usb/cvmx-usb.c
+++ b/drivers/staging/octeon-usb/cvmx-usb.c
@@ -2063,7 +2063,6 @@ done:
  * @pipe_handle:
  *		    Which pipe to submit to. Will be validated in this function.
  * @type:	    Transaction type
- * @flags:	    Flags for the transaction
  * @buffer:	    User buffer for the transaction
  * @buffer_length:
  *		    User buffer's length in bytes
@@ -2084,7 +2083,6 @@ done:
 static int __cvmx_usb_submit_transaction(struct cvmx_usb_internal_state *usb,
 					 int pipe_handle,
 					 enum cvmx_usb_transfer type,
-					 int flags,
 					 uint64_t buffer,
 					 int buffer_length,
 					 uint64_t control_header,
@@ -2111,7 +2109,6 @@ static int __cvmx_usb_submit_transaction(struct cvmx_usb_internal_state *usb,
 		return -ENOMEM;
 
 	transaction->type = type;
-	transaction->flags |= flags;
 	transaction->buffer = buffer;
 	transaction->buffer_length = buffer_length;
 	transaction->control_header = control_header;
@@ -2196,7 +2193,6 @@ int cvmx_usb_submit_bulk(struct cvmx_usb_state *state, int pipe_handle,
 
 	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
 						      CVMX_USB_TRANSFER_BULK,
-						      0, /* flags */
 						      buffer,
 						      buffer_length,
 						      0, /* control_header */
@@ -2255,7 +2251,6 @@ int cvmx_usb_submit_interrupt(struct cvmx_usb_state *state, int pipe_handle,
 
 	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
 						      CVMX_USB_TRANSFER_INTERRUPT,
-						      0, /* flags */
 						      buffer,
 						      buffer_length,
 						      0, /* control_header */
@@ -2326,7 +2321,6 @@ int cvmx_usb_submit_control(struct cvmx_usb_state *state, int pipe_handle,
 
 	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
 						      CVMX_USB_TRANSFER_CONTROL,
-						      0, /* flags */
 						      buffer,
 						      buffer_length,
 						      control_header,
@@ -2405,7 +2399,6 @@ int cvmx_usb_submit_isochronous(struct cvmx_usb_state *state, int pipe_handle,
 
 	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
 						      CVMX_USB_TRANSFER_ISOCHRONOUS,
-						      0,
 						      buffer,
 						      buffer_length,
 						      0, /* control_header */
-- 
cgit 


From e43de55ce23918920ec9c0f95fc07904469fdb46 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Tue, 1 Oct 2013 23:43:12 +0300
Subject: staging: octeon-usb: delete redundant flags from cvmx_usb_open_pipe()

Delete redudant flags parameter.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/cvmx-usb.c   | 6 ++----
 drivers/staging/octeon-usb/cvmx-usb.h   | 4 +---
 drivers/staging/octeon-usb/octeon-hcd.c | 1 -
 3 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/octeon-usb/cvmx-usb.c b/drivers/staging/octeon-usb/cvmx-usb.c
index 54b5c5c42ad3..3dd732e7a738 100644
--- a/drivers/staging/octeon-usb/cvmx-usb.c
+++ b/drivers/staging/octeon-usb/cvmx-usb.c
@@ -1109,8 +1109,6 @@ static inline int __cvmx_usb_get_pipe_handle(struct cvmx_usb_internal_state *usb
  *
  * @state:	     USB device state populated by
  *		     cvmx_usb_initialize().
- * @flags:	     Optional pipe flags defined in
- *		     enum cvmx_usb_pipe_flags.
  * @device_addr:
  *		     USB device address to open the pipe to
  *		     (0-127).
@@ -1158,7 +1156,7 @@ static inline int __cvmx_usb_get_pipe_handle(struct cvmx_usb_internal_state *usb
  * Returns: A non negative value is a pipe handle. Negative
  *	    values are error codes.
  */
-int cvmx_usb_open_pipe(struct cvmx_usb_state *state, enum cvmx_usb_pipe_flags flags,
+int cvmx_usb_open_pipe(struct cvmx_usb_state *state,
 		       int device_addr, int endpoint_num,
 		       enum cvmx_usb_speed device_speed, int max_packet,
 		       enum cvmx_usb_transfer transfer_type,
@@ -1200,7 +1198,7 @@ int cvmx_usb_open_pipe(struct cvmx_usb_state *state, enum cvmx_usb_pipe_flags fl
 	if (!pipe)
 		return -ENOMEM;
 	__cvmx_usb_remove_pipe(&usb->free_pipes, pipe);
-	pipe->flags = flags | __CVMX_USB_PIPE_FLAGS_OPEN;
+	pipe->flags = __CVMX_USB_PIPE_FLAGS_OPEN;
 	if ((device_speed == CVMX_USB_SPEED_HIGH) &&
 		(transfer_dir == CVMX_USB_DIRECTION_OUT) &&
 		(transfer_type == CVMX_USB_TRANSFER_BULK))
diff --git a/drivers/staging/octeon-usb/cvmx-usb.h b/drivers/staging/octeon-usb/cvmx-usb.h
index 6fc54911687c..a8ae8cae90db 100644
--- a/drivers/staging/octeon-usb/cvmx-usb.h
+++ b/drivers/staging/octeon-usb/cvmx-usb.h
@@ -455,8 +455,7 @@ enum cvmx_usb_initialize_flags {
 };
 
 /**
- * enum cvmx_usb_pipe_flags - flags for passing when a pipe is created.
- *			      Currently no flags need to be passed.
+ * enum cvmx_usb_pipe_flags - internal flags for a pipe.
  *
  * @__CVMX_USB_PIPE_FLAGS_OPEN:	     Used internally to determine if a pipe is
  *				     open. Do not use.
@@ -481,7 +480,6 @@ extern int cvmx_usb_disable(struct cvmx_usb_state *state);
 extern struct cvmx_usb_port_status cvmx_usb_get_status(struct cvmx_usb_state *state);
 extern void cvmx_usb_set_status(struct cvmx_usb_state *state, struct cvmx_usb_port_status port_status);
 extern int cvmx_usb_open_pipe(struct cvmx_usb_state *state,
-                              enum cvmx_usb_pipe_flags flags,
                               int device_addr, int endpoint_num,
                               enum cvmx_usb_speed device_speed, int max_packet,
                               enum cvmx_usb_transfer transfer_type,
diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index f238d1bc4332..764a8df0a16e 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -277,7 +277,6 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 			}
 		}
 		pipe_handle = cvmx_usb_open_pipe(&priv->usb,
-						 0,
 						 usb_pipedevice(urb->pipe),
 						 usb_pipeendpoint(urb->pipe),
 						 speed,
-- 
cgit 


From e50aa24e79eca2bd3b09f1cfb9f149bfdff3eb4c Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Tue, 1 Oct 2013 23:43:13 +0300
Subject: staging: octeon-usb: replace CVMX_CLZ with __fls()

Replace CVMX_CLZ macro with __fls().

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/cvmx-usb.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/octeon-usb/cvmx-usb.c b/drivers/staging/octeon-usb/cvmx-usb.c
index 3dd732e7a738..c57e798cc072 100644
--- a/drivers/staging/octeon-usb/cvmx-usb.c
+++ b/drivers/staging/octeon-usb/cvmx-usb.c
@@ -64,7 +64,6 @@
 // normal prefetches that use the pref instruction
 #define CVMX_PREFETCH_PREFX(X, address, offset) asm volatile ("pref %[type], %[off](%[rbase])" : : [rbase] "d" (address), [off] "I" (offset), [type] "n" (X))
 #define CVMX_PREFETCH_PREF0(address, offset) CVMX_PREFETCH_PREFX(0, address, offset)
-#define CVMX_CLZ(result, input) asm ("clz %[rd],%[rs]" : [rd] "=d" (result) : [rs] "d" (input))
 
 #define MAX_RETRIES		3		/* Maximum number of times to retry failed transactions */
 #define MAX_PIPES		32		/* Maximum number of pipes that can be open at once */
@@ -1893,8 +1892,7 @@ static void __cvmx_usb_schedule(struct cvmx_usb_internal_state *usb, int is_sof)
 
 	while (usb->idle_hardware_channels) {
 		/* Find an idle channel */
-		CVMX_CLZ(channel, usb->idle_hardware_channels);
-		channel = 31 - channel;
+		channel = __fls(usb->idle_hardware_channels);
 		if (unlikely(channel > 7))
 			break;
 
@@ -3121,8 +3119,8 @@ int cvmx_usb_poll(struct cvmx_usb_state *state)
 		usbc_haint.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HAINT(usb->index));
 		while (usbc_haint.u32) {
 			int channel;
-			CVMX_CLZ(channel, usbc_haint.u32);
-			channel = 31 - channel;
+
+			channel = __fls(usbc_haint.u32);
 			__cvmx_usb_poll_channel(usb, channel);
 			usbc_haint.u32 ^= 1<<channel;
 		}
-- 
cgit 


From 5e77a281eb05241901893078624ed973e7810908 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Tue, 1 Oct 2013 23:43:14 +0300
Subject: staging: octeon-usb: inline CVMX_PREFETCH0

Inline CVMX_PREFETCH0 macro.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/cvmx-usb.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/octeon-usb/cvmx-usb.c b/drivers/staging/octeon-usb/cvmx-usb.c
index c57e798cc072..b827e8dd3c47 100644
--- a/drivers/staging/octeon-usb/cvmx-usb.c
+++ b/drivers/staging/octeon-usb/cvmx-usb.c
@@ -57,7 +57,6 @@
 #include <asm/octeon/cvmx-helper.h>
 #include <asm/octeon/cvmx-helper-board.h>
 
-#define CVMX_PREFETCH0(address) CVMX_PREFETCH(address, 0)
 #define CVMX_PREFETCH128(address) CVMX_PREFETCH(address, 128)
 // a normal prefetch
 #define CVMX_PREFETCH(address, offset) CVMX_PREFETCH_PREF0(address, offset)
@@ -2667,7 +2666,7 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_internal_state *usb, int chan
 	if (!pipe)
 		return 0;
 	transaction = pipe->head;
-	CVMX_PREFETCH0(transaction);
+	CVMX_PREFETCH(transaction, 0);
 
 	/*
 	 * Disconnect this pipe from the HW channel. Later the schedule
-- 
cgit 


From 10828735df0d6a38d59f704fe9c69310488e668e Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Tue, 1 Oct 2013 23:43:15 +0300
Subject: staging: octeon-usb: delete CVMX_PREFETCH128

Delete unused macro.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/cvmx-usb.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/staging/octeon-usb/cvmx-usb.c b/drivers/staging/octeon-usb/cvmx-usb.c
index b827e8dd3c47..c5e680d54c47 100644
--- a/drivers/staging/octeon-usb/cvmx-usb.c
+++ b/drivers/staging/octeon-usb/cvmx-usb.c
@@ -57,7 +57,6 @@
 #include <asm/octeon/cvmx-helper.h>
 #include <asm/octeon/cvmx-helper-board.h>
 
-#define CVMX_PREFETCH128(address) CVMX_PREFETCH(address, 128)
 // a normal prefetch
 #define CVMX_PREFETCH(address, offset) CVMX_PREFETCH_PREF0(address, offset)
 // normal prefetches that use the pref instruction
-- 
cgit 


From 1e50e9ac319095b3395c65fca1d56681eb6e6782 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Tue, 1 Oct 2013 23:43:16 +0300
Subject: staging: octeon-usb: eliminate CVMX_PREFETCH_PREF0

Eliminate CVMX_PREFETCH_PREF0.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/cvmx-usb.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/staging/octeon-usb/cvmx-usb.c b/drivers/staging/octeon-usb/cvmx-usb.c
index c5e680d54c47..d53daf7ee2b2 100644
--- a/drivers/staging/octeon-usb/cvmx-usb.c
+++ b/drivers/staging/octeon-usb/cvmx-usb.c
@@ -57,11 +57,9 @@
 #include <asm/octeon/cvmx-helper.h>
 #include <asm/octeon/cvmx-helper-board.h>
 
-// a normal prefetch
-#define CVMX_PREFETCH(address, offset) CVMX_PREFETCH_PREF0(address, offset)
 // normal prefetches that use the pref instruction
 #define CVMX_PREFETCH_PREFX(X, address, offset) asm volatile ("pref %[type], %[off](%[rbase])" : : [rbase] "d" (address), [off] "I" (offset), [type] "n" (X))
-#define CVMX_PREFETCH_PREF0(address, offset) CVMX_PREFETCH_PREFX(0, address, offset)
+#define CVMX_PREFETCH(address, offset) CVMX_PREFETCH_PREFX(0, address, offset)
 
 #define MAX_RETRIES		3		/* Maximum number of times to retry failed transactions */
 #define MAX_PIPES		32		/* Maximum number of pipes that can be open at once */
-- 
cgit 


From 5bffcff517234e3d2611f3504ff82c92152bcd36 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Tue, 1 Oct 2013 23:43:17 +0300
Subject: staging: octeon-usb: eliminate CVMX_PREFETCH_PREFX

Eliminate CVMX_PREFETCH_PREFX.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/cvmx-usb.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/octeon-usb/cvmx-usb.c b/drivers/staging/octeon-usb/cvmx-usb.c
index d53daf7ee2b2..9647deb37325 100644
--- a/drivers/staging/octeon-usb/cvmx-usb.c
+++ b/drivers/staging/octeon-usb/cvmx-usb.c
@@ -57,9 +57,8 @@
 #include <asm/octeon/cvmx-helper.h>
 #include <asm/octeon/cvmx-helper-board.h>
 
-// normal prefetches that use the pref instruction
-#define CVMX_PREFETCH_PREFX(X, address, offset) asm volatile ("pref %[type], %[off](%[rbase])" : : [rbase] "d" (address), [off] "I" (offset), [type] "n" (X))
-#define CVMX_PREFETCH(address, offset) CVMX_PREFETCH_PREFX(0, address, offset)
+/* Normal prefetch that use the pref instruction. */
+#define CVMX_PREFETCH(address, offset) asm volatile ("pref %[type], %[off](%[rbase])" : : [rbase] "d" (address), [off] "I" (offset), [type] "n" (0))
 
 #define MAX_RETRIES		3		/* Maximum number of times to retry failed transactions */
 #define MAX_PIPES		32		/* Maximum number of pipes that can be open at once */
-- 
cgit 


From d0adff6acd788bc6a4d73377946982ed868332ff Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Tue, 1 Oct 2013 23:43:18 +0300
Subject: staging: octeon-usb: cvmx-usb: delete unused macros

Delete unused cvmx_read_csr / cvmx_write_csr macros.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/cvmx-usb.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/staging/octeon-usb/cvmx-usb.c b/drivers/staging/octeon-usb/cvmx-usb.c
index 9647deb37325..4cf7b8bc81e1 100644
--- a/drivers/staging/octeon-usb/cvmx-usb.c
+++ b/drivers/staging/octeon-usb/cvmx-usb.c
@@ -70,14 +70,6 @@
 #define MAX_TRANSFER_BYTES	((1<<19)-1)	/* The low level hardware can transfer a maximum of this number of bytes in each transfer. The field is 19 bits wide */
 #define MAX_TRANSFER_PACKETS	((1<<10)-1)	/* The low level hardware can transfer a maximum of this number of packets in each transfer. The field is 10 bits wide */
 
-/*
- * These defines disable the normal read and write csr. This is so I can add
- * extra debug stuff to the usb specific version and I won't use the normal
- * version by mistake
- */
-#define cvmx_read_csr use_cvmx_usb_read_csr64_instead_of_cvmx_read_csr
-#define cvmx_write_csr use_cvmx_usb_write_csr64_instead_of_cvmx_write_csr
-
 enum cvmx_usb_transaction_flags {
 	__CVMX_USB_TRANSACTION_FLAGS_IN_USE = 1<<16,
 };
-- 
cgit 


From ab09e5c1488763cc83f96c5940333435e9816ce3 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Tue, 1 Oct 2013 23:43:19 +0300
Subject: staging: octeon-usb: cvmx-usb.c: make comments to fit into 80 columns

Make comments to fit into 80 columns.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/cvmx-usb.c | 149 ++++++++++++++++++++++++----------
 1 file changed, 108 insertions(+), 41 deletions(-)

diff --git a/drivers/staging/octeon-usb/cvmx-usb.c b/drivers/staging/octeon-usb/cvmx-usb.c
index 4cf7b8bc81e1..910a657b6292 100644
--- a/drivers/staging/octeon-usb/cvmx-usb.c
+++ b/drivers/staging/octeon-usb/cvmx-usb.c
@@ -20,16 +20,16 @@
  *     derived from this software without specific prior written
  *     permission.
 
- * This Software, including technical data, may be subject to U.S. export  control
- * laws, including the U.S. Export Administration Act and its  associated
+ * This Software, including technical data, may be subject to U.S. export
+ * control laws, including the U.S. Export Administration Act and its associated
  * regulations, and may be subject to export or import  regulations in other
  * countries.
 
  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
- * AND WITH ALL FAULTS AND CAVIUM  NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR
+ * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR
  * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
- * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
- * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
+ * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION
+ * OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
  * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
  * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
  * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
@@ -60,15 +60,38 @@
 /* Normal prefetch that use the pref instruction. */
 #define CVMX_PREFETCH(address, offset) asm volatile ("pref %[type], %[off](%[rbase])" : : [rbase] "d" (address), [off] "I" (offset), [type] "n" (0))
 
-#define MAX_RETRIES		3		/* Maximum number of times to retry failed transactions */
-#define MAX_PIPES		32		/* Maximum number of pipes that can be open at once */
-#define MAX_TRANSACTIONS	256		/* Maximum number of outstanding transactions across all pipes */
-#define MAX_CHANNELS		8		/* Maximum number of hardware channels supported by the USB block */
-#define MAX_USB_ADDRESS		127		/* The highest valid USB device address */
-#define MAX_USB_ENDPOINT	15		/* The highest valid USB endpoint number */
-#define MAX_USB_HUB_PORT	15		/* The highest valid port number on a hub */
-#define MAX_TRANSFER_BYTES	((1<<19)-1)	/* The low level hardware can transfer a maximum of this number of bytes in each transfer. The field is 19 bits wide */
-#define MAX_TRANSFER_PACKETS	((1<<10)-1)	/* The low level hardware can transfer a maximum of this number of packets in each transfer. The field is 10 bits wide */
+/* Maximum number of times to retry failed transactions */
+#define MAX_RETRIES		3
+
+/* Maximum number of pipes that can be open at once */
+#define MAX_PIPES		32
+
+/* Maximum number of outstanding transactions across all pipes */
+#define MAX_TRANSACTIONS	256
+
+/* Maximum number of hardware channels supported by the USB block */
+#define MAX_CHANNELS		8
+
+/* The highest valid USB device address */
+#define MAX_USB_ADDRESS		127
+
+/* The highest valid USB endpoint number */
+#define MAX_USB_ENDPOINT	15
+
+/* The highest valid port number on a hub */
+#define MAX_USB_HUB_PORT	15
+
+/*
+ * The low level hardware can transfer a maximum of this number of bytes in each
+ * transfer. The field is 19 bits wide
+ */
+#define MAX_TRANSFER_BYTES	((1<<19)-1)
+
+/*
+ * The low level hardware can transfer a maximum of this number of packets in
+ * each transfer. The field is 10 bits wide
+ */
+#define MAX_TRANSFER_PACKETS	((1<<10)-1)
 
 enum cvmx_usb_transaction_flags {
 	__CVMX_USB_TRANSACTION_FLAGS_IN_USE = 1<<16,
@@ -622,12 +645,15 @@ int cvmx_usb_initialize(struct cvmx_usb_state *state, int usb_port_number)
 		 * Most Octeon evaluation boards require this setting
 		 */
 		if (OCTEON_IS_MODEL(OCTEON_CN3XXX)) {
-			usbn_clk_ctl.cn31xx.p_rclk  = 1; /* From CN31XX,CN30XX manual */
+			/* From CN31XX,CN30XX manual */
+			usbn_clk_ctl.cn31xx.p_rclk  = 1;
 			usbn_clk_ctl.cn31xx.p_xenbn = 0;
 		} else if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN50XX))
-			usbn_clk_ctl.cn56xx.p_rtype = 2; /* From CN56XX,CN50XX manual */
+			/* From CN56XX,CN50XX manual */
+			usbn_clk_ctl.cn56xx.p_rtype = 2;
 		else
-			usbn_clk_ctl.cn52xx.p_rtype = 1; /* From CN52XX manual */
+			/* From CN52XX manual */
+			usbn_clk_ctl.cn52xx.p_rtype = 1;
 
 		switch (flags & CVMX_USB_INITIALIZE_FLAGS_CLOCK_MHZ_MASK) {
 		case CVMX_USB_INITIALIZE_FLAGS_CLOCK_12MHZ:
@@ -646,12 +672,15 @@ int cvmx_usb_initialize(struct cvmx_usb_state *state, int usb_port_number)
 		 * at USB_XO and USB_XI
 		 */
 		if (OCTEON_IS_MODEL(OCTEON_CN3XXX)) {
-			usbn_clk_ctl.cn31xx.p_rclk  = 1; /* From CN31XX,CN30XX manual */
+			/* From CN31XX,CN30XX manual */
+			usbn_clk_ctl.cn31xx.p_rclk  = 1;
 			usbn_clk_ctl.cn31xx.p_xenbn = 1;
 		} else if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN50XX))
-			usbn_clk_ctl.cn56xx.p_rtype = 0; /* From CN56XX,CN50XX manual */
+			/* From CN56XX,CN50XX manual */
+			usbn_clk_ctl.cn56xx.p_rtype = 0;
 		else
-			usbn_clk_ctl.cn52xx.p_rtype = 0; /* From CN52XX manual */
+			/* From CN52XX manual */
+			usbn_clk_ctl.cn52xx.p_rtype = 0;
 
 		usbn_clk_ctl.s.p_c_sel = 0;
 	}
@@ -662,7 +691,8 @@ int cvmx_usb_initialize(struct cvmx_usb_state *state, int usb_port_number)
 	 */
 	{
 		int divisor = (octeon_get_clock_rate()+125000000-1)/125000000;
-		if (divisor < 4)  /* Lower than 4 doesn't seem to work properly */
+		/* Lower than 4 doesn't seem to work properly */
+		if (divisor < 4)
 			divisor = 4;
 		usbn_clk_ctl.s.divide = divisor;
 		usbn_clk_ctl.s.divide2 = 0;
@@ -759,9 +789,11 @@ int cvmx_usb_initialize(struct cvmx_usb_state *state, int usb_port_number)
 		usbcx_gahbcfg.u32 = 0;
 		usbcx_gahbcfg.s.dmaen = !(usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA);
 		if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)
-			usb->idle_hardware_channels = 0x1;  /* Only use one channel with non DMA */
+			/* Only use one channel with non DMA */
+			usb->idle_hardware_channels = 0x1;
 		else if (OCTEON_IS_MODEL(OCTEON_CN5XXX))
-			usb->idle_hardware_channels = 0xf7; /* CN5XXX have an errata with channel 3 */
+			/* CN5XXX have an errata with channel 3 */
+			usb->idle_hardware_channels = 0xf7;
 		else
 			usb->idle_hardware_channels = 0xff;
 		usbcx_gahbcfg.s.hbstlen = 0;
@@ -809,7 +841,10 @@ int cvmx_usb_initialize(struct cvmx_usb_state *state, int usb_port_number)
 		__cvmx_usb_write_csr32(usb, CVMX_USBCX_GINTMSK(usb->index),
 				       usbcx_gintmsk.u32);
 
-		/* Disable all channel interrupts. We'll enable them per channel later */
+		/*
+		 * Disable all channel interrupts. We'll enable them per channel
+		 * later.
+		 */
 		for (channel = 0; channel < 8; channel++)
 			__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCINTMSKX(channel, usb->index), 0);
 	}
@@ -932,7 +967,10 @@ int cvmx_usb_enable(struct cvmx_usb_state *state)
 				  prtena, ==, 1, 100000))
 		return -ETIMEDOUT;
 
-	/* Read the port speed field to get the enumerated speed, USBC_HPRT[PRTSPD]. */
+	/*
+	 * Read the port speed field to get the enumerated speed,
+	 * USBC_HPRT[PRTSPD].
+	 */
 	usb->usbcx_hprt.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HPRT(usb->index));
 	usbcx_ghwcfg3.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_GHWCFG3(usb->index));
 
@@ -1384,7 +1422,10 @@ static void __cvmx_usb_fill_tx_fifo(struct cvmx_usb_internal_state *usb, int cha
 	if (usbc_hcsplt.s.spltena && usbc_hcsplt.s.compsplt)
 		return;
 
-	/* Find out how many bytes we need to fill and convert it into 32bit words */
+	/*
+	 * Find out how many bytes we need to fill and convert it into 32bit
+	 * words.
+	 */
 	usbc_hctsiz.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCTSIZX(channel, usb->index));
 	if (!usbc_hctsiz.s.xfersize)
 		return;
@@ -1577,13 +1618,19 @@ static void __cvmx_usb_start_channel(struct cvmx_usb_internal_state *usb,
 		usbc_hcintmsk.u32 = 0;
 		usbc_hcintmsk.s.chhltdmsk = 1;
 		if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA) {
-			/* Channels need these extra interrupts when we aren't in DMA mode */
+			/*
+			 * Channels need these extra interrupts when we aren't
+			 * in DMA mode.
+			 */
 			usbc_hcintmsk.s.datatglerrmsk = 1;
 			usbc_hcintmsk.s.frmovrunmsk = 1;
 			usbc_hcintmsk.s.bblerrmsk = 1;
 			usbc_hcintmsk.s.xacterrmsk = 1;
 			if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
-				/* Splits don't generate xfercompl, so we need ACK and NYET */
+				/*
+				 * Splits don't generate xfercompl, so we need
+				 * ACK and NYET.
+				 */
 				usbc_hcintmsk.s.nyetmsk = 1;
 				usbc_hcintmsk.s.ackmsk = 1;
 			}
@@ -1677,18 +1724,22 @@ static void __cvmx_usb_start_channel(struct cvmx_usb_internal_state *usb,
 					 * begin or the entire payload
 					 */
 					if (bytes_to_transfer <= 188)
-						usbc_hcsplt.s.xactpos = 3; /* Entire payload in one go */
+						/* Entire payload in one go */
+						usbc_hcsplt.s.xactpos = 3;
 					else
-						usbc_hcsplt.s.xactpos = 2; /* First part of payload */
+						/* First part of payload */
+						usbc_hcsplt.s.xactpos = 2;
 				} else {
 					/*
 					 * Continuing the previous data, we must
 					 * either be in the middle or at the end
 					 */
 					if (bytes_to_transfer <= 188)
-						usbc_hcsplt.s.xactpos = 1; /* End of payload */
+						/* End of payload */
+						usbc_hcsplt.s.xactpos = 1;
 					else
-						usbc_hcsplt.s.xactpos = 0; /* Middle of payload */
+						/* Middle of payload */
+						usbc_hcsplt.s.xactpos = 0;
 				}
 				/*
 				 * Again, the transfer size is limited to 188
@@ -1870,7 +1921,10 @@ static void __cvmx_usb_schedule(struct cvmx_usb_internal_state *usb, int is_sof)
 	enum cvmx_usb_transfer ttype;
 
 	if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA) {
-		/* Without DMA we need to be careful to not schedule something at the end of a frame and cause an overrun */
+		/*
+		 * Without DMA we need to be careful to not schedule something
+		 * at the end of a frame and cause an overrun.
+		 */
 		union cvmx_usbcx_hfnum hfnum = {.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HFNUM(usb->index))};
 		union cvmx_usbcx_hfir hfir = {.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HFIR(usb->index))};
 		if (hfnum.s.frrem < hfir.s.frint/4)
@@ -2007,9 +2061,12 @@ static void __cvmx_usb_perform_complete(struct cvmx_usb_internal_state *usb,
 		 * next one
 		 */
 		if ((transaction->iso_number_packets > 1) && (complete_code == CVMX_USB_COMPLETE_SUCCESS)) {
-			transaction->actual_bytes = 0;	   /* No bytes transferred for this packet as of yet */
-			transaction->iso_number_packets--; /* One less ISO waiting to transfer */
-			transaction->iso_packets++;	   /* Increment to the next location in our packet array */
+			/* No bytes transferred for this packet as of yet */
+			transaction->actual_bytes = 0;
+			/* One less ISO waiting to transfer */
+			transaction->iso_number_packets--;
+			/* Increment to the next location in our packet array */
+			transaction->iso_packets++;
 			transaction->stage = CVMX_USB_STAGE_NON_CONTROL;
 			goto done;
 		}
@@ -2095,7 +2152,8 @@ static int __cvmx_usb_submit_transaction(struct cvmx_usb_internal_state *usb,
 	transaction->buffer = buffer;
 	transaction->buffer_length = buffer_length;
 	transaction->control_header = control_header;
-	transaction->iso_start_frame = iso_start_frame; // FIXME: This is not used, implement it
+	/* FIXME: This is not used, implement it. */
+	transaction->iso_start_frame = iso_start_frame;
 	transaction->iso_number_packets = iso_number_packets;
 	transaction->iso_packets = iso_packets;
 	transaction->callback = callback;
@@ -2406,7 +2464,8 @@ int cvmx_usb_submit_isochronous(struct cvmx_usb_state *state, int pipe_handle,
  * @pipe_handle:
  *		 Pipe handle to cancel requests in.
  * @submit_handle:
- *		 Handle to transaction to cancel, returned by the submit function.
+ *		 Handle to transaction to cancel, returned by the submit
+ *		 function.
  *
  * Returns: 0 or a negative error code.
  */
@@ -2445,7 +2504,10 @@ int cvmx_usb_cancel(struct cvmx_usb_state *state, int pipe_handle, int submit_ha
 		CVMX_SYNCW;
 
 		usbc_hcchar.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCCHARX(pipe->channel, usb->index));
-		/* If the channel isn't enabled then the transaction already completed */
+		/*
+		 * If the channel isn't enabled then the transaction already
+		 * completed.
+		 */
 		if (usbc_hcchar.s.chena) {
 			usbc_hcchar.s.chdis = 1;
 			__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCCHARX(pipe->channel, usb->index), usbc_hcchar.u32);
@@ -2628,7 +2690,10 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_internal_state *usb, int chan
 				__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCCHARX(channel, usb->index), usbc_hcchar.u32);
 				return 0;
 			} else if (usbc_hcint.s.xfercompl) {
-				/* Successful IN/OUT with transfer complete. Channel halt isn't needed */
+				/*
+				 * Successful IN/OUT with transfer complete.
+				 * Channel halt isn't needed.
+				 */
 			} else {
 				cvmx_dprintf("USB%d: Channel %d interrupt without halt\n", usb->index, channel);
 				return 0;
@@ -2980,7 +3045,9 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_internal_state *usb, int chan
 			break;
 		}
 	} else if (usbc_hcint.s.nak) {
-		/* If this was a split then clear our split in progress marker */
+		/*
+		 * If this was a split then clear our split in progress marker.
+		 */
 		if (usb->active_split == transaction)
 			usb->active_split = NULL;
 		/*
-- 
cgit 


From 72b80113a6a7cc0077328aa1765f36141dc7fd1c Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Tue, 1 Oct 2013 23:43:20 +0300
Subject: staging: octeon-usb: cvmx-usb.h: make comments to fit into 80 columns

Make comments to fit into 80 columns.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/cvmx-usb.h | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/octeon-usb/cvmx-usb.h b/drivers/staging/octeon-usb/cvmx-usb.h
index a8ae8cae90db..7b7a542cbd95 100644
--- a/drivers/staging/octeon-usb/cvmx-usb.h
+++ b/drivers/staging/octeon-usb/cvmx-usb.h
@@ -20,16 +20,16 @@
  *     derived from this software without specific prior written
  *     permission.
 
- * This Software, including technical data, may be subject to U.S. export  control
- * laws, including the U.S. Export Administration Act and its  associated
+ * This Software, including technical data, may be subject to U.S. export
+ * control laws, including the U.S. Export Administration Act and its associated
  * regulations, and may be subject to export or import  regulations in other
  * countries.
 
  * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
- * AND WITH ALL FAULTS AND CAVIUM  NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR
+ * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR
  * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
- * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
- * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
+ * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION
+ * OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
  * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
  * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
  * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
@@ -283,8 +283,8 @@ enum cvmx_usb_direction {
  * @CVMX_USB_COMPLETE_SUCCESS:	  The transaction / operation finished without
  *				  any errors
  * @CVMX_USB_COMPLETE_SHORT:	  FIXME: This is currently not implemented
- * @CVMX_USB_COMPLETE_CANCEL:	  The transaction was canceled while in flight by
- *				  a user call to cvmx_usb_cancel
+ * @CVMX_USB_COMPLETE_CANCEL:	  The transaction was canceled while in flight
+ *				  by a user call to cvmx_usb_cancel
  * @CVMX_USB_COMPLETE_ERROR:	  The transaction aborted with an unexpected
  *				  error status
  * @CVMX_USB_COMPLETE_STALL:	  The transaction received a USB STALL response
-- 
cgit 


From 3fc0165657592e98a957f348711209dd2c6c4f1c Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Thu, 26 Sep 2013 13:25:32 -0500
Subject: rtlwifi: rtl8723ae: Convert driver to use new
 rtl_phy_scan_operation_backup() routine

Now that rtl_phy_scan_operation_backup() exists, convert rtl8723ae to use it.
Routine rtl8723ae_phy_scan_operation_backup() is no longer used and is removed.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/rtl8723ae/phy.c | 29 ----------------------------
 drivers/net/wireless/rtlwifi/rtl8723ae/phy.h |  2 --
 drivers/net/wireless/rtlwifi/rtl8723ae/sw.c  |  3 ++-
 3 files changed, 2 insertions(+), 32 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/rtl8723ae/phy.c b/drivers/net/wireless/rtlwifi/rtl8723ae/phy.c
index eafbb18dd48e..5d318a85eda4 100644
--- a/drivers/net/wireless/rtlwifi/rtl8723ae/phy.c
+++ b/drivers/net/wireless/rtlwifi/rtl8723ae/phy.c
@@ -934,35 +934,6 @@ static long _phy_txpwr_idx_to_dbm(struct ieee80211_hw *hw,
 	return pwrout_dbm;
 }
 
-void rtl8723ae_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
-	enum io_type iotype;
-
-	if (!is_hal_stop(rtlhal)) {
-		switch (operation) {
-		case SCAN_OPT_BACKUP:
-			iotype = IO_CMD_PAUSE_DM_BY_SCAN;
-			rtlpriv->cfg->ops->set_hw_reg(hw,
-						      HW_VAR_IO_CMD,
-						      (u8 *)&iotype);
-
-			break;
-		case SCAN_OPT_RESTORE:
-			iotype = IO_CMD_RESUME_DM_BY_SCAN;
-			rtlpriv->cfg->ops->set_hw_reg(hw,
-						      HW_VAR_IO_CMD,
-						      (u8 *)&iotype);
-			break;
-		default:
-			RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
-				 "Unknown Scan Backup operation.\n");
-			break;
-		}
-	}
-}
-
 void rtl8723ae_phy_set_bw_mode_callback(struct ieee80211_hw *hw)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
diff --git a/drivers/net/wireless/rtlwifi/rtl8723ae/phy.h b/drivers/net/wireless/rtlwifi/rtl8723ae/phy.h
index e7a59eba351a..3d8f9e3aad76 100644
--- a/drivers/net/wireless/rtlwifi/rtl8723ae/phy.h
+++ b/drivers/net/wireless/rtlwifi/rtl8723ae/phy.h
@@ -205,8 +205,6 @@ extern void rtl8723ae_phy_set_txpower_level(struct ieee80211_hw *hw,
 					    u8 channel);
 extern bool rtl8723ae_phy_update_txpower_dbm(struct ieee80211_hw *hw,
 					     long power_indbm);
-extern void rtl8723ae_phy_scan_operation_backup(struct ieee80211_hw *hw,
-						u8 operation);
 extern void rtl8723ae_phy_set_bw_mode_callback(struct ieee80211_hw *hw);
 extern void rtl8723ae_phy_set_bw_mode(struct ieee80211_hw *hw,
 				      enum nl80211_channel_type ch_type);
diff --git a/drivers/net/wireless/rtlwifi/rtl8723ae/sw.c b/drivers/net/wireless/rtlwifi/rtl8723ae/sw.c
index d9ee2efffe5f..62b204faf773 100644
--- a/drivers/net/wireless/rtlwifi/rtl8723ae/sw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8723ae/sw.c
@@ -33,6 +33,7 @@
 
 #include "../core.h"
 #include "../pci.h"
+#include "../base.h"
 #include "reg.h"
 #include "def.h"
 #include "phy.h"
@@ -220,7 +221,7 @@ static struct rtl_hal_ops rtl8723ae_hal_ops = {
 	.set_bw_mode = rtl8723ae_phy_set_bw_mode,
 	.switch_channel = rtl8723ae_phy_sw_chnl,
 	.dm_watchdog = rtl8723ae_dm_watchdog,
-	.scan_operation_backup = rtl8723ae_phy_scan_operation_backup,
+	.scan_operation_backup = rtl_phy_scan_operation_backup,
 	.set_rf_power_state = rtl8723ae_phy_set_rf_power_state,
 	.led_control = rtl8723ae_led_control,
 	.set_desc = rtl8723ae_set_desc,
-- 
cgit 


From d41200ad5fc6c283c8c375f52e4f8699c0eeec61 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Thu, 26 Sep 2013 13:25:33 -0500
Subject: rtlwifi: rtl8188ee: Convert driver to use new
 rtl_phy_scan_operation_backup() routine

Now that rtl_phy_scan_operation_backup() exists, convert rtl8188ee to use it.
Routine rtl88e_phy_scan_operation_backup() is no longer used and is removed.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/rtl8188ee/phy.c | 28 ----------------------------
 drivers/net/wireless/rtlwifi/rtl8188ee/phy.h |  2 --
 drivers/net/wireless/rtlwifi/rtl8188ee/sw.c  |  3 ++-
 3 files changed, 2 insertions(+), 31 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/rtl8188ee/phy.c b/drivers/net/wireless/rtlwifi/rtl8188ee/phy.c
index e655c0473225..d67f9c731cc4 100644
--- a/drivers/net/wireless/rtlwifi/rtl8188ee/phy.c
+++ b/drivers/net/wireless/rtlwifi/rtl8188ee/phy.c
@@ -1136,34 +1136,6 @@ void rtl88e_phy_set_txpower_level(struct ieee80211_hw *hw, u8 channel)
 					   &bw40_pwr[0], channel);
 }
 
-void rtl88e_phy_scan_operation_backup(struct ieee80211_hw *hw, u8 operation)
-{
-	struct rtl_priv *rtlpriv = rtl_priv(hw);
-	struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
-	enum io_type iotype;
-
-	if (!is_hal_stop(rtlhal)) {
-		switch (operation) {
-		case SCAN_OPT_BACKUP:
-			iotype = IO_CMD_PAUSE_DM_BY_SCAN;
-			rtlpriv->cfg->ops->set_hw_reg(hw,
-						      HW_VAR_IO_CMD,
-						      (u8 *)&iotype);
-			break;
-		case SCAN_OPT_RESTORE:
-			iotype = IO_CMD_RESUME_DM_BY_SCAN;
-			rtlpriv->cfg->ops->set_hw_reg(hw,
-						      HW_VAR_IO_CMD,
-						      (u8 *)&iotype);
-			break;
-		default:
-			RT_TRACE(rtlpriv, COMP_ERR, DBG_EMERG,
-				 "Unknown Scan Backup operation.\n");
-			break;
-		}
-	}
-}
-
 void rtl88e_phy_set_bw_mode_callback(struct ieee80211_hw *hw)
 {
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
diff --git a/drivers/net/wireless/rtlwifi/rtl8188ee/phy.h b/drivers/net/wireless/rtlwifi/rtl8188ee/phy.h
index f1acd6d27e44..d4545f06e185 100644
--- a/drivers/net/wireless/rtlwifi/rtl8188ee/phy.h
+++ b/drivers/net/wireless/rtlwifi/rtl8188ee/phy.h
@@ -217,8 +217,6 @@ extern void rtl88e_phy_get_hw_reg_originalvalue(struct ieee80211_hw *hw);
 extern void rtl88e_phy_get_txpower_level(struct ieee80211_hw *hw,
 					 long *powerlevel);
 extern void rtl88e_phy_set_txpower_level(struct ieee80211_hw *hw, u8 channel);
-extern void rtl88e_phy_scan_operation_backup(struct ieee80211_hw *hw,
-					     u8 operation);
 extern void rtl88e_phy_set_bw_mode_callback(struct ieee80211_hw *hw);
 extern void rtl88e_phy_set_bw_mode(struct ieee80211_hw *hw,
 				   enum nl80211_channel_type ch_type);
diff --git a/drivers/net/wireless/rtlwifi/rtl8188ee/sw.c b/drivers/net/wireless/rtlwifi/rtl8188ee/sw.c
index c254693a1e6a..347af1e4f438 100644
--- a/drivers/net/wireless/rtlwifi/rtl8188ee/sw.c
+++ b/drivers/net/wireless/rtlwifi/rtl8188ee/sw.c
@@ -30,6 +30,7 @@
 #include "../wifi.h"
 #include "../core.h"
 #include "../pci.h"
+#include "../base.h"
 #include "reg.h"
 #include "def.h"
 #include "phy.h"
@@ -244,7 +245,7 @@ static struct rtl_hal_ops rtl8188ee_hal_ops = {
 	.set_bw_mode = rtl88e_phy_set_bw_mode,
 	.switch_channel = rtl88e_phy_sw_chnl,
 	.dm_watchdog = rtl88e_dm_watchdog,
-	.scan_operation_backup = rtl88e_phy_scan_operation_backup,
+	.scan_operation_backup = rtl_phy_scan_operation_backup,
 	.set_rf_power_state = rtl88e_phy_set_rf_power_state,
 	.led_control = rtl88ee_led_control,
 	.set_desc = rtl88ee_set_desc,
-- 
cgit 


From ab06e0f20ed4c4eb472a1e16f942d6e0150c00bc Mon Sep 17 00:00:00 2001
From: Shalin Mehta <shalinmehta85@gmail.com>
Date: Thu, 3 Oct 2013 01:08:42 -0700
Subject: staging: speakup: str initialization replaced with NULL where it was
 initialized with int

Fixed warnings in all of three files where the string was initilized with an integer instead of NULL

Signed-off-by: Shalin Mehta <shalinmehta85@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/speakup/main.c           | 2 +-
 drivers/staging/speakup/speakup_audptr.c | 2 +-
 drivers/staging/speakup/varhandlers.c    | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/speakup/main.c b/drivers/staging/speakup/main.c
index 14079c4949a8..47502fa5f3f6 100644
--- a/drivers/staging/speakup/main.c
+++ b/drivers/staging/speakup/main.c
@@ -90,7 +90,7 @@ const struct st_bits_data spk_punc_info[] = {
 	{"repeats", "()", CH_RPT},
 	{"extended numeric", "", B_EXNUM},
 	{"symbols", "", B_SYM},
-	{0, 0}
+	{NULL, NULL}
 };
 
 static char mark_cut_flag;
diff --git a/drivers/staging/speakup/speakup_audptr.c b/drivers/staging/speakup/speakup_audptr.c
index 3508aee98ab0..61a3ceeb0d3a 100644
--- a/drivers/staging/speakup/speakup_audptr.c
+++ b/drivers/staging/speakup/speakup_audptr.c
@@ -39,7 +39,7 @@ static struct var_t vars[] = {
 	{ RATE, .u.n = {"\x05[r%d]", 10, 0, 20, 100, -10, NULL } },
 	{ PITCH, .u.n = {"\x05[f%d]", 80, 39, 4500, 0, 0, NULL } },
 	{ VOL, .u.n = {"\x05[g%d]", 21, 0, 40, 0, 0, NULL } },
-	{ TONE, .u.n = {"\x05[s%d]", 9, 0, 63, 0, 0, 0 } },
+	{ TONE, .u.n = {"\x05[s%d]", 9, 0, 63, 0, 0, NULL } },
 	{ PUNCT, .u.n = {"\x05[A%c]", 0, 0, 3, 0, 0, "nmsa" } },
 	{ DIRECT, .u.n = {NULL, 0, 0, 1, 0, 0, NULL } },
 	V_LAST_VAR
diff --git a/drivers/staging/speakup/varhandlers.c b/drivers/staging/speakup/varhandlers.c
index 9aa2a78cd71c..70231b6dabba 100644
--- a/drivers/staging/speakup/varhandlers.c
+++ b/drivers/staging/speakup/varhandlers.c
@@ -46,7 +46,7 @@ static struct st_var_header var_headers[] = {
 	{ "direct", DIRECT, VAR_NUM, NULL, NULL },
 };
 
-static struct st_var_header *var_ptrs[MAXVARS] = { 0, 0, 0 };
+static struct st_var_header *var_ptrs[MAXVARS] = { NULL, NULL, NULL };
 
 static struct punc_var_t punc_vars[] = {
 	{ PUNC_SOME, 1 },
-- 
cgit 


From 2d1155478fb6f972b3a97cbf13151ee4f078a164 Mon Sep 17 00:00:00 2001
From: Matthijs Kooijman <matthijs@stdin.nl>
Date: Thu, 3 Oct 2013 09:46:25 +0200
Subject: staging: dwc2: Make dwc2_hw_params.host_channels large enough

The hardware offers a 4-bit register containing the number of host
channels. However, the values of these register mean 1-16 host channels,
not 0-15. Since the dwc2_hw_params struct stores the actual number of
host channels supported instead of the raw register value, it should be
5 bits wide instead of 4.

Before this commit, hardware with 16 host channels would overflow the
field, making it appear as 0 channels.

This bug was introduced in commit 9badec2 (staging: dwc2: interpret all
hwcfg and related register at init time).

Reported-by: Dinh Nguyen <dinguyen@altera.com>
Signed-off-by: Matthijs Kooijman <matthijs@stdin.nl>
Acked-by: Paul Zimmerman <paulz@synopsys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dwc2/core.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/dwc2/core.h b/drivers/staging/dwc2/core.h
index f7ba34b7071c..fab718d9b326 100644
--- a/drivers/staging/dwc2/core.h
+++ b/drivers/staging/dwc2/core.h
@@ -294,7 +294,7 @@ struct dwc2_hw_params {
 	unsigned dev_token_q_depth:5;
 	unsigned max_transfer_size:26;
 	unsigned max_packet_count:11;
-	unsigned host_channels:4;
+	unsigned host_channels:5;
 	unsigned hs_phy_type:2;
 	unsigned fs_phy_type:2;
 	unsigned i2c_enable:1;
-- 
cgit 


From 77e73e8c90aded3215ecb4d05b9c91ec94349b61 Mon Sep 17 00:00:00 2001
From: Thomas Cort <linuxgeek@gmail.com>
Date: Tue, 1 Oct 2013 11:26:55 -0400
Subject: Staging: rtl8712: fix spaces before semicolons

Resolve all of the 'WARNING: space prohibited before semicolon'
checkpatch warnings for rtl8712.

Signed-off-by: Thomas Cort <linuxgeek@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8712/os_intfs.c            | 2 +-
 drivers/staging/rtl8712/rtl8712_cmd.c         | 4 ++--
 drivers/staging/rtl8712/rtl8712_efuse.c       | 2 +-
 drivers/staging/rtl8712/rtl8712_recv.c        | 6 +++---
 drivers/staging/rtl8712/rtl871x_cmd.c         | 2 +-
 drivers/staging/rtl8712/rtl871x_ioctl_linux.c | 8 ++++----
 drivers/staging/rtl8712/rtl871x_ioctl_rtl.c   | 6 +++---
 drivers/staging/rtl8712/rtl871x_mlme.c        | 4 ++--
 drivers/staging/rtl8712/rtl871x_mp.c          | 8 ++++----
 drivers/staging/rtl8712/rtl871x_security.c    | 6 +++---
 drivers/staging/rtl8712/rtl871x_sta_mgt.c     | 4 ++--
 drivers/staging/rtl8712/xmit_linux.c          | 2 +-
 12 files changed, 27 insertions(+), 27 deletions(-)

diff --git a/drivers/staging/rtl8712/os_intfs.c b/drivers/staging/rtl8712/os_intfs.c
index 6e81ba0eaf1e..82a77b45fb50 100644
--- a/drivers/staging/rtl8712/os_intfs.c
+++ b/drivers/staging/rtl8712/os_intfs.c
@@ -141,7 +141,7 @@ static uint loadparam(struct _adapter *padapter, struct  net_device *pnetdev)
 	registry_par->ssid.SsidLength = 3;
 	registry_par->channel = (u8)channel;
 	registry_par->wireless_mode = (u8)wireless_mode;
-	registry_par->vrtl_carrier_sense = (u8)vrtl_carrier_sense ;
+	registry_par->vrtl_carrier_sense = (u8)vrtl_carrier_sense;
 	registry_par->vcs_type = (u8)vcs_type;
 	registry_par->frag_thresh = (u16)frag_thresh;
 	registry_par->preamble = (u8)preamble;
diff --git a/drivers/staging/rtl8712/rtl8712_cmd.c b/drivers/staging/rtl8712/rtl8712_cmd.c
index 53f247b324e0..5b6a96e3bd7b 100644
--- a/drivers/staging/rtl8712/rtl8712_cmd.c
+++ b/drivers/staging/rtl8712/rtl8712_cmd.c
@@ -62,7 +62,7 @@ static void check_hw_pbc(struct _adapter *padapter)
 	r8712_write8(padapter, GPIO_IO_SEL, tmp1byte);
 	tmp1byte = r8712_read8(padapter, GPIO_CTRL);
 	if (tmp1byte == 0xff)
-		return ;
+		return;
 	if (tmp1byte&HAL_8192S_HW_GPIO_WPS_BIT) {
 		/* Here we only set bPbcPressed to true
 		 * After trigger PBC, the variable will be set to false */
@@ -381,7 +381,7 @@ _next:
 			*pcmdbuf = cpu_to_le32((cmdsz & 0x0000ffff) |
 					       (pcmd->cmdcode << 16) |
 					       (pcmdpriv->cmd_seq << 24));
-			pcmdbuf += 2 ; /* 8 bytes alignment */
+			pcmdbuf += 2; /* 8 bytes alignment */
 			memcpy((u8 *)pcmdbuf, pcmd->parmbuf, pcmd->cmdsz);
 			while (check_cmd_fifo(padapter, wr_sz) == _FAIL) {
 				if ((padapter->bDriverStopped == true) ||
diff --git a/drivers/staging/rtl8712/rtl8712_efuse.c b/drivers/staging/rtl8712/rtl8712_efuse.c
index 377fca905801..c9eeb4270ab9 100644
--- a/drivers/staging/rtl8712/rtl8712_efuse.c
+++ b/drivers/staging/rtl8712/rtl8712_efuse.c
@@ -231,7 +231,7 @@ u16 r8712_efuse_get_current_size(struct _adapter *padapter)
 			/* read next header */
 			efuse_addr = efuse_addr + (word_cnts * 2) + 1;
 		} else
-			bContinual = false ;
+			bContinual = false;
 	}
 	return efuse_addr;
 }
diff --git a/drivers/staging/rtl8712/rtl8712_recv.c b/drivers/staging/rtl8712/rtl8712_recv.c
index d59a74aa3048..ea965370d1ac 100644
--- a/drivers/staging/rtl8712/rtl8712_recv.c
+++ b/drivers/staging/rtl8712/rtl8712_recv.c
@@ -108,7 +108,7 @@ void r8712_free_recv_priv(struct recv_priv *precvpriv)
 	struct _adapter *padapter = precvpriv->adapter;
 
 	precvbuf = (struct recv_buf *)precvpriv->precv_buf;
-	for (i = 0; i < NR_RECVBUFF ; i++) {
+	for (i = 0; i < NR_RECVBUFF; i++) {
 		r8712_os_recvbuf_resource_free(padapter, precvbuf);
 		precvbuf++;
 	}
@@ -268,7 +268,7 @@ union recv_frame *r8712_recvframe_chk_defrag(struct _adapter *padapter,
 	u8   *psta_addr;
 	struct recv_frame_hdr *pfhdr;
 	struct sta_info *psta;
-	struct	sta_priv *pstapriv ;
+	struct	sta_priv *pstapriv;
 	struct list_head *phead;
 	union recv_frame *prtnframe = NULL;
 	struct  __queue *pfree_recv_queue, *pdefrag_q;
@@ -849,7 +849,7 @@ static void query_rx_phy_status(struct _adapter *padapter,
 	} else {
 		/* (1)Get RSSI for HT rate */
 		for (i = 0; i < ((padapter->registrypriv.rf_config) &
-			    0x0f) ; i++) {
+			    0x0f); i++) {
 			rf_rx_num++;
 			rx_pwr[i] = ((pphy_head[PHY_STAT_GAIN_TRSW_SHT + i]
 				    & 0x3F) * 2) - 110;
diff --git a/drivers/staging/rtl8712/rtl871x_cmd.c b/drivers/staging/rtl8712/rtl871x_cmd.c
index f16307f5d827..7e324315e6ad 100644
--- a/drivers/staging/rtl8712/rtl871x_cmd.c
+++ b/drivers/staging/rtl8712/rtl871x_cmd.c
@@ -965,7 +965,7 @@ void r8712_createbss_cmd_callback(struct _adapter *padapter,
 			psta = r8712_alloc_stainfo(&padapter->stapriv,
 						   pnetwork->MacAddress);
 			if (psta == NULL)
-				goto createbss_cmd_fail ;
+				goto createbss_cmd_fail;
 		}
 		r8712_indicate_connect(padapter);
 	} else {
diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
index d58aa7e3b15c..9fec6eda8731 100644
--- a/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
+++ b/drivers/staging/rtl8712/rtl871x_ioctl_linux.c
@@ -820,7 +820,7 @@ static int r871x_wx_set_pmkid(struct net_device *dev,
 			intReturn = true;
 		blInserted = false;
 		/* overwrite PMKID */
-		for (j = 0 ; j < NUM_PMKID_CACHE; j++) {
+		for (j = 0; j < NUM_PMKID_CACHE; j++) {
 			if (!memcmp(psecuritypriv->PMKIDList[j].Bssid,
 			    strIssueBssid, ETH_ALEN)) {
 				/* BSSID is matched, the same AP => rewrite
@@ -845,7 +845,7 @@ static int r871x_wx_set_pmkid(struct net_device *dev,
 				PMKIDIndex].PMKID, pPMK->pmkid, IW_PMKID_LEN);
 			psecuritypriv->PMKIDList[psecuritypriv->PMKIDIndex].
 				bUsed = true;
-			psecuritypriv->PMKIDIndex++ ;
+			psecuritypriv->PMKIDIndex++;
 			if (psecuritypriv->PMKIDIndex == NUM_PMKID_CACHE)
 				psecuritypriv->PMKIDIndex = 0;
 		}
@@ -1598,7 +1598,7 @@ static int r8711_wx_set_enc(struct net_device *dev,
 		wep.Length = wep.KeyLength +
 			     FIELD_OFFSET(struct NDIS_802_11_WEP, KeyMaterial);
 	} else {
-		wep.KeyLength = 0 ;
+		wep.KeyLength = 0;
 		if (keyindex_provided == 1) { /* set key_id only, no given
 					       * KeyMaterial(erq->length==0).*/
 			padapter->securitypriv.PrivacyKeyIndex = key;
@@ -1880,7 +1880,7 @@ static int r8711_wx_write32(struct net_device *dev,
 	u32 data32;
 
 	get_user(addr, (u32 __user *)wrqu->data.pointer);
-	data32 = ((u32)wrqu->data.length<<16) | (u32)wrqu->data.flags ;
+	data32 = ((u32)wrqu->data.length<<16) | (u32)wrqu->data.flags;
 	r8712_write32(padapter, addr, data32);
 	return 0;
 }
diff --git a/drivers/staging/rtl8712/rtl871x_ioctl_rtl.c b/drivers/staging/rtl8712/rtl871x_ioctl_rtl.c
index 5d6d55e7b389..ac0baff7f090 100644
--- a/drivers/staging/rtl8712/rtl871x_ioctl_rtl.c
+++ b/drivers/staging/rtl8712/rtl871x_ioctl_rtl.c
@@ -153,7 +153,7 @@ uint oid_rt_get_rx_icv_err_hdl(struct oid_par_priv *poid_par_priv)
 					 padapter->recvpriv.rx_icv_err;
 		*poid_par_priv->bytes_rw = poid_par_priv->information_buf_len;
 	} else
-		return RNDIS_STATUS_INVALID_LENGTH ;
+		return RNDIS_STATUS_INVALID_LENGTH;
 	return RNDIS_STATUS_SUCCESS;
 }
 
@@ -169,7 +169,7 @@ uint oid_rt_get_preamble_mode_hdl(struct oid_par_priv *poid_par_priv)
 {
 	struct _adapter *padapter = (struct _adapter *)
 				    (poid_par_priv->adapter_context);
-	u32 preamblemode = 0 ;
+	u32 preamblemode = 0;
 
 	if (poid_par_priv->type_of_oid != QUERY_OID)
 		return RNDIS_STATUS_NOT_ACCEPTED;
@@ -522,7 +522,7 @@ uint oid_rt_get_connect_state_hdl(struct oid_par_priv *poid_par_priv)
 	else if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) == true)
 		ulInfo = ADHOCMODE;
 	else
-		ulInfo = NOTASSOCIATED ;
+		ulInfo = NOTASSOCIATED;
 	*(u32 *)poid_par_priv->information_buf = ulInfo;
 	*poid_par_priv->bytes_rw =  poid_par_priv->information_buf_len;
 	return RNDIS_STATUS_SUCCESS;
diff --git a/drivers/staging/rtl8712/rtl871x_mlme.c b/drivers/staging/rtl8712/rtl871x_mlme.c
index 659615481f6f..8fa0f9d49a8a 100644
--- a/drivers/staging/rtl8712/rtl871x_mlme.c
+++ b/drivers/staging/rtl8712/rtl871x_mlme.c
@@ -1641,7 +1641,7 @@ void r8712_update_registrypriv_dev_network(struct _adapter *adapter)
 	struct wlan_network	*cur_network = &adapter->mlmepriv.cur_network;
 
 	pdev_network->Privacy = cpu_to_le32(psecuritypriv->PrivacyAlgrthm
-					    > 0 ? 1 : 0) ; /* adhoc no 802.1x */
+					    > 0 ? 1 : 0); /* adhoc no 802.1x */
 	pdev_network->Rssi = 0;
 	switch (pregistrypriv->wireless_mode) {
 	case WIRELESS_11B:
@@ -1786,7 +1786,7 @@ static void update_ht_cap(struct _adapter *padapter, u8 *pie, uint ie_len)
 	psta = r8712_get_stainfo(&padapter->stapriv,
 				 pcur_network->network.MacAddress);
 	if (psta) {
-		for (i = 0; i < 16 ; i++) {
+		for (i = 0; i < 16; i++) {
 			preorder_ctrl = &psta->recvreorder_ctrl[i];
 			preorder_ctrl->indicate_seq = 0xffff;
 			preorder_ctrl->wend_b = 0xffff;
diff --git a/drivers/staging/rtl8712/rtl871x_mp.c b/drivers/staging/rtl8712/rtl871x_mp.c
index 5638d5e065ff..0563318a19ff 100644
--- a/drivers/staging/rtl8712/rtl871x_mp.c
+++ b/drivers/staging/rtl8712/rtl871x_mp.c
@@ -110,7 +110,7 @@ static u32 fw_iocmd_read(struct _adapter *pAdapter, struct IOCMD_STRUCT iocmd)
 	u16 iocmd_value	= iocmd.value;
 	u8 iocmd_idx	= iocmd.index;
 
-	cmd32 = (iocmd_class << 24) | (iocmd_value << 8) | iocmd_idx ;
+	cmd32 = (iocmd_class << 24) | (iocmd_value << 8) | iocmd_idx;
 	if (r8712_fw_cmd(pAdapter, cmd32))
 		r8712_fw_cmd_data(pAdapter, &val32, 1);
 	else
@@ -128,7 +128,7 @@ static u8 fw_iocmd_write(struct _adapter *pAdapter,
 
 	r8712_fw_cmd_data(pAdapter, &value, 0);
 	msleep(100);
-	cmd32 = (iocmd_class << 24) | (iocmd_value << 8) | iocmd_idx ;
+	cmd32 = (iocmd_class << 24) | (iocmd_value << 8) | iocmd_idx;
 	return r8712_fw_cmd(pAdapter, cmd32);
 }
 
@@ -189,8 +189,8 @@ u32 r8712_rf_reg_read(struct _adapter *pAdapter, u8 path, u8 offset)
 	u32 rf_data;
 	struct IOCMD_STRUCT iocmd;
 
-	iocmd.cmdclass	= IOCMD_CLASS_BB_RF ;
-	iocmd.value	= rf_addr ;
+	iocmd.cmdclass	= IOCMD_CLASS_BB_RF;
+	iocmd.value	= rf_addr;
 	iocmd.index	= IOCMD_RF_READ_IDX;
 	rf_data = fw_iocmd_read(pAdapter, iocmd);
 	return rf_data;
diff --git a/drivers/staging/rtl8712/rtl871x_security.c b/drivers/staging/rtl8712/rtl871x_security.c
index e33fd6db246d..5349669707c0 100644
--- a/drivers/staging/rtl8712/rtl871x_security.c
+++ b/drivers/staging/rtl8712/rtl871x_security.c
@@ -835,7 +835,7 @@ static void mix_column(u8 *in, u8 *out)
 	u8 temp[4];
 	u8 tempb[4];
 
-	for (i = 0 ; i < 4; i++) {
+	for (i = 0; i < 4; i++) {
 		if ((in[i] & 0x80) == 0x80)
 			add1b[i] = 0x1b;
 		else
@@ -1187,7 +1187,7 @@ u32 r8712_aes_encrypt(struct _adapter *padapter, u8 *pxmitframe)
 					length = pxmitpriv->frag_len -
 						 pattrib->hdrlen -
 						 pattrib->iv_len -
-						 pattrib->icv_len ;
+						 pattrib->icv_len;
 					aes_cipher(prwskey, pattrib->
 						   hdrlen, pframe, length);
 					pframe += pxmitpriv->frag_len;
@@ -1315,7 +1315,7 @@ static sint aes_decipher(u8 *key, uint	hdrlen,
 		bitwise_xor(aes_out, padded_buffer, chain_buffer);
 		aes128k128d(key, chain_buffer, aes_out);
 	}
-	for (j = 0 ; j < 8; j++)
+	for (j = 0; j < 8; j++)
 		mic[j] = aes_out[j];
 	/* Insert MIC into payload */
 	for (j = 0; j < 8; j++)
diff --git a/drivers/staging/rtl8712/rtl871x_sta_mgt.c b/drivers/staging/rtl8712/rtl871x_sta_mgt.c
index 1247b3d9719d..8db6849d4b24 100644
--- a/drivers/staging/rtl8712/rtl871x_sta_mgt.c
+++ b/drivers/staging/rtl8712/rtl871x_sta_mgt.c
@@ -138,7 +138,7 @@ struct sta_info *r8712_alloc_stainfo(struct sta_priv *pstapriv, u8 *hwaddr)
 		}
 		phash_list = &(pstapriv->sta_hash[index]);
 		list_insert_tail(&psta->hash_list, phash_list);
-		pstapriv->asoc_sta_count++ ;
+		pstapriv->asoc_sta_count++;
 
 /* For the SMC router, the sequence number of first packet of WPS handshake
  * will be 0. In this case, this packet will be dropped by recv_decache function
@@ -149,7 +149,7 @@ struct sta_info *r8712_alloc_stainfo(struct sta_priv *pstapriv, u8 *hwaddr)
 			memcpy(&psta->sta_recvpriv.rxcache.tid_rxseq[i],
 				&wRxSeqInitialValue, 2);
 		/* for A-MPDU Rx reordering buffer control */
-		for (i = 0; i < 16 ; i++) {
+		for (i = 0; i < 16; i++) {
 			preorder_ctrl = &psta->recvreorder_ctrl[i];
 			preorder_ctrl->padapter = pstapriv->padapter;
 			preorder_ctrl->indicate_seq = 0xffff;
diff --git a/drivers/staging/rtl8712/xmit_linux.c b/drivers/staging/rtl8712/xmit_linux.c
index 4d22bb7008f8..0ac9130faf6c 100644
--- a/drivers/staging/rtl8712/xmit_linux.c
+++ b/drivers/staging/rtl8712/xmit_linux.c
@@ -51,7 +51,7 @@ void _r8712_open_pktfile(_pkt *pktptr, struct pkt_file *pfile)
 	pfile->pkt = pktptr;
 	pfile->cur_addr = pfile->buf_start = pktptr->data;
 	pfile->pkt_len = pfile->buf_len = pktptr->len;
-	pfile->cur_buffer = pfile->buf_start ;
+	pfile->cur_buffer = pfile->buf_start;
 }
 
 uint _r8712_pktfile_read(struct pkt_file *pfile, u8 *rmem, uint rlen)
-- 
cgit 


From d974ce4f3bc19f9b228e1ec4964a580f350a6ffa Mon Sep 17 00:00:00 2001
From: Kamlakant Patel <kamlakant.patel@broadcom.com>
Date: Tue, 1 Oct 2013 15:03:58 +0530
Subject: Staging: MTD: Micron SPINAND Driver support

This patch adds support for Micron SPINAND via MTD.

Signed-off-by: Mona Anonuevo <manonuevo@micron.com>
Signed-off-by: Kamlakant Patel <kamlakant.patel@broadcom.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/Kconfig                       |   2 +
 drivers/staging/Makefile                      |   1 +
 drivers/staging/mt29f_spinand/Kconfig         |  16 +
 drivers/staging/mt29f_spinand/Makefile        |   1 +
 drivers/staging/mt29f_spinand/TODO            |  13 +
 drivers/staging/mt29f_spinand/mt29f_spinand.c | 962 ++++++++++++++++++++++++++
 drivers/staging/mt29f_spinand/mt29f_spinand.h | 107 +++
 7 files changed, 1102 insertions(+)
 create mode 100644 drivers/staging/mt29f_spinand/Kconfig
 create mode 100644 drivers/staging/mt29f_spinand/Makefile
 create mode 100644 drivers/staging/mt29f_spinand/TODO
 create mode 100644 drivers/staging/mt29f_spinand/mt29f_spinand.c
 create mode 100644 drivers/staging/mt29f_spinand/mt29f_spinand.h

diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 3626dbc8eb0b..3bfdaa8d80a9 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -136,6 +136,8 @@ source "drivers/staging/goldfish/Kconfig"
 
 source "drivers/staging/netlogic/Kconfig"
 
+source "drivers/staging/mt29f_spinand/Kconfig"
+
 source "drivers/staging/dwc2/Kconfig"
 
 source "drivers/staging/lustre/Kconfig"
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index d1b4b8003c2d..b0d3303b4680 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -66,3 +66,4 @@ obj-$(CONFIG_USB_BTMTK)		+= btmtk_usb/
 obj-$(CONFIG_XILLYBUS)		+= xillybus/
 obj-$(CONFIG_DGNC)			+= dgnc/
 obj-$(CONFIG_DGAP)			+= dgap/
+obj-$(CONFIG_MTD_SPINAND_MT29F)	+= mt29f_spinand/
diff --git a/drivers/staging/mt29f_spinand/Kconfig b/drivers/staging/mt29f_spinand/Kconfig
new file mode 100644
index 000000000000..403174817be7
--- /dev/null
+++ b/drivers/staging/mt29f_spinand/Kconfig
@@ -0,0 +1,16 @@
+config MTD_SPINAND_MT29F
+	tristate "SPINAND Device Support for Micron"
+	depends on MTD_NAND && SPI
+	help
+	  This enables support for accessing Micron SPI NAND flash
+	  devices.
+	  If you have Micron SPI NAND chip say yes.
+
+	  If unsure, say no here.
+
+config MTD_SPINAND_ONDIEECC
+	bool "Use SPINAND internal ECC"
+	depends on MTD_SPINAND_MT29F
+	help
+	  Internel ECC.
+	  Enables Hardware ECC support for Micron SPI NAND.
diff --git a/drivers/staging/mt29f_spinand/Makefile b/drivers/staging/mt29f_spinand/Makefile
new file mode 100644
index 000000000000..e47af0f7fda9
--- /dev/null
+++ b/drivers/staging/mt29f_spinand/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_MTD_SPINAND_MT29F) += mt29f_spinand.o
diff --git a/drivers/staging/mt29f_spinand/TODO b/drivers/staging/mt29f_spinand/TODO
new file mode 100644
index 000000000000..a2209b72d371
--- /dev/null
+++ b/drivers/staging/mt29f_spinand/TODO
@@ -0,0 +1,13 @@
+TODO:
+	- Tested on XLP platform, needs to be tested on other platforms.
+	- Checkpatch.pl cleanups
+	- Sparce fixes.
+	- Clean up coding style to meet kernel standard.
+
+Please send patches
+To:
+Kamlakant Patel <kamlakant.patel@broadcom.com>
+Cc:
+Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Mona Anonuevo <manonuevo@micron.com>
+linux-mtd@lists.infradead.org
diff --git a/drivers/staging/mt29f_spinand/mt29f_spinand.c b/drivers/staging/mt29f_spinand/mt29f_spinand.c
new file mode 100644
index 000000000000..8e95a57a8c4c
--- /dev/null
+++ b/drivers/staging/mt29f_spinand/mt29f_spinand.c
@@ -0,0 +1,962 @@
+/*
+ * Copyright (c) 2003-2013 Broadcom Corporation
+ *
+ * Copyright (c) 2009-2010 Micron Technology, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+#include <linux/mtd/nand.h>
+#include <linux/spi/spi.h>
+
+#include "mt29f_spinand.h"
+
+#define BUFSIZE (10 * 64 * 2048)
+#define CACHE_BUF 2112
+/*
+ * OOB area specification layout:  Total 32 available free bytes.
+ */
+#ifdef CONFIG_MTD_SPINAND_ONDIEECC
+static int enable_hw_ecc;
+static int enable_read_hw_ecc;
+
+static inline struct spinand_state *mtd_to_state(struct mtd_info *mtd)
+{
+	struct nand_chip *chip = (struct nand_chip *)mtd->priv;
+	struct spinand_info *info = (struct spinand_info *)chip->priv;
+	struct spinand_state *state = (struct spinand_state *)info->priv;
+
+	return state;
+}
+
+static struct nand_ecclayout spinand_oob_64 = {
+	.eccbytes = 24,
+	.eccpos = {
+		1, 2, 3, 4, 5, 6,
+		17, 18, 19, 20, 21, 22,
+		33, 34, 35, 36, 37, 38,
+		49, 50, 51, 52, 53, 54, },
+	.oobavail = 32,
+	.oobfree = {
+		{.offset = 8,
+			.length = 8},
+		{.offset = 24,
+			.length = 8},
+		{.offset = 40,
+			.length = 8},
+		{.offset = 56,
+			.length = 8},
+	}
+};
+#endif
+
+/*
+ * spinand_cmd - to process a command to send to the SPI Nand
+ * Description:
+ *    Set up the command buffer to send to the SPI controller.
+ *    The command buffer has to initialized to 0.
+ */
+
+static int spinand_cmd(struct spi_device *spi, struct spinand_cmd *cmd)
+{
+	struct spi_message message;
+	struct spi_transfer x[4];
+	u8 dummy = 0xff;
+
+	spi_message_init(&message);
+	memset(x, 0, sizeof(x));
+
+	x[0].len = 1;
+	x[0].tx_buf = &cmd->cmd;
+	spi_message_add_tail(&x[0], &message);
+
+	if (cmd->n_addr) {
+		x[1].len = cmd->n_addr;
+		x[1].tx_buf = cmd->addr;
+		spi_message_add_tail(&x[1], &message);
+	}
+
+	if (cmd->n_dummy) {
+		x[2].len = cmd->n_dummy;
+		x[2].tx_buf = &dummy;
+		spi_message_add_tail(&x[2], &message);
+	}
+
+	if (cmd->n_tx) {
+		x[3].len = cmd->n_tx;
+		x[3].tx_buf = cmd->tx_buf;
+		spi_message_add_tail(&x[3], &message);
+	}
+
+	if (cmd->n_rx) {
+		x[3].len = cmd->n_rx;
+		x[3].rx_buf = cmd->rx_buf;
+		spi_message_add_tail(&x[3], &message);
+	}
+
+	return spi_sync(spi, &message);
+}
+
+/*
+ * spinand_read_id- Read SPI Nand ID
+ * Description:
+ *    Read ID: read two ID bytes from the SPI Nand device
+ */
+static int spinand_read_id(struct spi_device *spi_nand, u8 *id)
+{
+	int retval;
+	u8 nand_id[3];
+	struct spinand_cmd cmd = {0};
+
+	cmd.cmd = CMD_READ_ID;
+	cmd.n_rx = 3;
+	cmd.rx_buf = &nand_id[0];
+
+	retval = spinand_cmd(spi_nand, &cmd);
+	if (retval < 0) {
+		dev_err(&spi_nand->dev, "error %d reading id\n", retval);
+		return retval;
+	}
+	id[0] = nand_id[1];
+	id[1] = nand_id[2];
+	return retval;
+}
+
+/*
+ * spinand_read_status- send command 0xf to the SPI Nand status register
+ * Description:
+ *    After read, write, or erase, the Nand device is expected to set the
+ *    busy status.
+ *    This function is to allow reading the status of the command: read,
+ *    write, and erase.
+ *    Once the status turns to be ready, the other status bits also are
+ *    valid status bits.
+ */
+static int spinand_read_status(struct spi_device *spi_nand, uint8_t *status)
+{
+	struct spinand_cmd cmd = {0};
+	int ret;
+
+	cmd.cmd = CMD_READ_REG;
+	cmd.n_addr = 1;
+	cmd.addr[0] = REG_STATUS;
+	cmd.n_rx = 1;
+	cmd.rx_buf = status;
+
+	ret = spinand_cmd(spi_nand, &cmd);
+	if (ret < 0)
+		dev_err(&spi_nand->dev, "err: %d read status register\n", ret);
+
+	return ret;
+}
+
+#define MAX_WAIT_JIFFIES  (40 * HZ)
+static int wait_till_ready(struct spi_device *spi_nand)
+{
+	unsigned long deadline;
+	int retval;
+	u8 stat = 0;
+
+	deadline = jiffies + MAX_WAIT_JIFFIES;
+	do {
+		retval = spinand_read_status(spi_nand, &stat);
+		if (retval < 0)
+			return -1;
+		else if (!(stat & 0x1))
+			break;
+
+		cond_resched();
+	} while (!time_after_eq(jiffies, deadline));
+
+	if ((stat & 0x1) == 0)
+		return 0;
+
+	return -1;
+}
+/**
+ * spinand_get_otp- send command 0xf to read the SPI Nand OTP register
+ * Description:
+ *   There is one bit( bit 0x10 ) to set or to clear the internal ECC.
+ *   Enable chip internal ECC, set the bit to 1
+ *   Disable chip internal ECC, clear the bit to 0
+ */
+static int spinand_get_otp(struct spi_device *spi_nand, u8 *otp)
+{
+	struct spinand_cmd cmd = {0};
+	int retval;
+
+	cmd.cmd = CMD_READ_REG;
+	cmd.n_addr = 1;
+	cmd.addr[0] = REG_OTP;
+	cmd.n_rx = 1;
+	cmd.rx_buf = otp;
+
+	retval = spinand_cmd(spi_nand, &cmd);
+	if (retval < 0)
+		dev_err(&spi_nand->dev, "error %d get otp\n", retval);
+	return retval;
+}
+
+/**
+ * spinand_set_otp- send command 0x1f to write the SPI Nand OTP register
+ * Description:
+ *   There is one bit( bit 0x10 ) to set or to clear the internal ECC.
+ *   Enable chip internal ECC, set the bit to 1
+ *   Disable chip internal ECC, clear the bit to 0
+ */
+static int spinand_set_otp(struct spi_device *spi_nand, u8 *otp)
+{
+	int retval;
+	struct spinand_cmd cmd = {0};
+
+	cmd.cmd = CMD_WRITE_REG,
+	cmd.n_addr = 1,
+	cmd.addr[0] = REG_OTP,
+	cmd.n_tx = 1,
+	cmd.tx_buf = otp,
+
+	retval = spinand_cmd(spi_nand, &cmd);
+	if (retval < 0)
+		dev_err(&spi_nand->dev, "error %d set otp\n", retval);
+
+	return retval;
+}
+
+#ifdef CONFIG_MTD_SPINAND_ONDIEECC
+/**
+ * spinand_enable_ecc- send command 0x1f to write the SPI Nand OTP register
+ * Description:
+ *   There is one bit( bit 0x10 ) to set or to clear the internal ECC.
+ *   Enable chip internal ECC, set the bit to 1
+ *   Disable chip internal ECC, clear the bit to 0
+ */
+static int spinand_enable_ecc(struct spi_device *spi_nand)
+{
+	int retval;
+	u8 otp = 0;
+
+	retval = spinand_get_otp(spi_nand, &otp);
+	if (retval < 0)
+		return retval;
+
+	if ((otp & OTP_ECC_MASK) == OTP_ECC_MASK) {
+		return 0;
+	} else {
+		otp |= OTP_ECC_MASK;
+		retval = spinand_set_otp(spi_nand, &otp);
+		if (retval < 0)
+			return retval;
+		return spinand_get_otp(spi_nand, &otp);
+	}
+}
+#endif
+
+static int spinand_disable_ecc(struct spi_device *spi_nand)
+{
+	int retval;
+	u8 otp = 0;
+
+	retval = spinand_get_otp(spi_nand, &otp);
+	if (retval < 0)
+		return retval;
+
+	if ((otp & OTP_ECC_MASK) == OTP_ECC_MASK) {
+		otp &= ~OTP_ECC_MASK;
+		retval = spinand_set_otp(spi_nand, &otp);
+		if (retval < 0)
+			return retval;
+		return spinand_get_otp(spi_nand, &otp);
+	} else
+		return 0;
+}
+
+/**
+ * spinand_write_enable- send command 0x06 to enable write or erase the
+ * Nand cells
+ * Description:
+ *   Before write and erase the Nand cells, the write enable has to be set.
+ *   After the write or erase, the write enable bit is automatically
+ *   cleared (status register bit 2)
+ *   Set the bit 2 of the status register has the same effect
+ */
+static int spinand_write_enable(struct spi_device *spi_nand)
+{
+	struct spinand_cmd cmd = {0};
+
+	cmd.cmd = CMD_WR_ENABLE;
+	return spinand_cmd(spi_nand, &cmd);
+}
+
+static int spinand_read_page_to_cache(struct spi_device *spi_nand, u16 page_id)
+{
+	struct spinand_cmd cmd = {0};
+	u16 row;
+
+	row = page_id;
+	cmd.cmd = CMD_READ;
+	cmd.n_addr = 3;
+	cmd.addr[1] = (u8)((row & 0xff00) >> 8);
+	cmd.addr[2] = (u8)(row & 0x00ff);
+
+	return spinand_cmd(spi_nand, &cmd);
+}
+
+/*
+ * spinand_read_from_cache- send command 0x03 to read out the data from the
+ * cache register(2112 bytes max)
+ * Description:
+ *   The read can specify 1 to 2112 bytes of data read at the corresponding
+ *   locations.
+ *   No tRd delay.
+ */
+static int spinand_read_from_cache(struct spi_device *spi_nand, u16 page_id,
+		u16 byte_id, u16 len, u8 *rbuf)
+{
+	struct spinand_cmd cmd = {0};
+	u16 column;
+
+	column = byte_id;
+	cmd.cmd = CMD_READ_RDM;
+	cmd.n_addr = 3;
+	cmd.addr[0] = (u8)((column & 0xff00) >> 8);
+	cmd.addr[0] |= (u8)(((page_id >> 6) & 0x1) << 4);
+	cmd.addr[1] = (u8)(column & 0x00ff);
+	cmd.addr[2] = (u8)(0xff);
+	cmd.n_dummy = 0;
+	cmd.n_rx = len;
+	cmd.rx_buf = rbuf;
+
+	return spinand_cmd(spi_nand, &cmd);
+}
+
+/*
+ * spinand_read_page-to read a page with:
+ * @page_id: the physical page number
+ * @offset:  the location from 0 to 2111
+ * @len:     number of bytes to read
+ * @rbuf:    read buffer to hold @len bytes
+ *
+ * Description:
+ *   The read includes two commands to the Nand: 0x13 and 0x03 commands
+ *   Poll to read status to wait for tRD time.
+ */
+static int spinand_read_page(struct spi_device *spi_nand, u16 page_id,
+		u16 offset, u16 len, u8 *rbuf)
+{
+	int ret;
+	u8 status = 0;
+
+#ifdef CONFIG_MTD_SPINAND_ONDIEECC
+	if (enable_read_hw_ecc) {
+		if (spinand_enable_ecc(spi_nand) < 0)
+			dev_err(&spi_nand->dev, "enable HW ECC failed!");
+	}
+#endif
+	ret = spinand_read_page_to_cache(spi_nand, page_id);
+	if (ret < 0)
+		return ret;
+
+	if (wait_till_ready(spi_nand))
+		dev_err(&spi_nand->dev, "WAIT timedout!!!\n");
+
+	while (1) {
+		ret = spinand_read_status(spi_nand, &status);
+		if (ret < 0) {
+			dev_err(&spi_nand->dev,
+					"err %d read status register\n", ret);
+			return ret;
+		}
+
+		if ((status & STATUS_OIP_MASK) == STATUS_READY) {
+			if ((status & STATUS_ECC_MASK) == STATUS_ECC_ERROR) {
+				dev_err(&spi_nand->dev, "ecc error, page=%d\n",
+						page_id);
+				return 0;
+			}
+			break;
+		}
+	}
+
+	ret = spinand_read_from_cache(spi_nand, page_id, offset, len, rbuf);
+	if (ret < 0) {
+		dev_err(&spi_nand->dev, "read from cache failed!!\n");
+		return ret;
+	}
+
+#ifdef CONFIG_MTD_SPINAND_ONDIEECC
+	if (enable_read_hw_ecc) {
+		ret = spinand_disable_ecc(spi_nand);
+		if (ret < 0) {
+			dev_err(&spi_nand->dev, "disable ecc failed!!\n");
+			return ret;
+		}
+		enable_read_hw_ecc = 0;
+	}
+#endif
+	return ret;
+}
+
+/*
+ * spinand_program_data_to_cache--to write a page to cache with:
+ * @byte_id: the location to write to the cache
+ * @len:     number of bytes to write
+ * @rbuf:    read buffer to hold @len bytes
+ *
+ * Description:
+ *   The write command used here is 0x84--indicating that the cache is
+ *   not cleared first.
+ *   Since it is writing the data to cache, there is no tPROG time.
+ */
+static int spinand_program_data_to_cache(struct spi_device *spi_nand,
+		u16 page_id, u16 byte_id, u16 len, u8 *wbuf)
+{
+	struct spinand_cmd cmd = {0};
+	u16 column;
+
+	column = byte_id;
+	cmd.cmd = CMD_PROG_PAGE_CLRCACHE;
+	cmd.n_addr = 2;
+	cmd.addr[0] = (u8)((column & 0xff00) >> 8);
+	cmd.addr[0] |= (u8)(((page_id >> 6) & 0x1) << 4);
+	cmd.addr[1] = (u8)(column & 0x00ff);
+	cmd.n_tx = len;
+	cmd.tx_buf = wbuf;
+
+	return spinand_cmd(spi_nand, &cmd);
+}
+
+/**
+ * spinand_program_execute--to write a page from cache to the Nand array with
+ * @page_id: the physical page location to write the page.
+ *
+ * Description:
+ *   The write command used here is 0x10--indicating the cache is writing to
+ *   the Nand array.
+ *   Need to wait for tPROG time to finish the transaction.
+ */
+static int spinand_program_execute(struct spi_device *spi_nand, u16 page_id)
+{
+	struct spinand_cmd cmd = {0};
+	u16 row;
+
+	row = page_id;
+	cmd.cmd = CMD_PROG_PAGE_EXC;
+	cmd.n_addr = 3;
+	cmd.addr[1] = (u8)((row & 0xff00) >> 8);
+	cmd.addr[2] = (u8)(row & 0x00ff);
+
+	return spinand_cmd(spi_nand, &cmd);
+}
+
+/**
+ * spinand_program_page--to write a page with:
+ * @page_id: the physical page location to write the page.
+ * @offset:  the location from the cache starting from 0 to 2111
+ * @len:     the number of bytes to write
+ * @wbuf:    the buffer to hold the number of bytes
+ *
+ * Description:
+ *   The commands used here are 0x06, 0x84, and 0x10--indicating that
+ *   the write enable is first sent, the write cache command, and the
+ *   write execute command.
+ *   Poll to wait for the tPROG time to finish the transaction.
+ */
+static int spinand_program_page(struct spi_device *spi_nand,
+		u16 page_id, u16 offset, u16 len, u8 *buf)
+{
+	int retval;
+	u8 status = 0;
+	uint8_t *wbuf;
+#ifdef CONFIG_MTD_SPINAND_ONDIEECC
+	unsigned int i, j;
+
+	enable_read_hw_ecc = 0;
+	wbuf = devm_kzalloc(&spi_nand->dev, CACHE_BUF, GFP_KERNEL);
+	spinand_read_page(spi_nand, page_id, 0, CACHE_BUF, wbuf);
+
+	for (i = offset, j = 0; i < len; i++, j++)
+		wbuf[i] &= buf[j];
+
+	if (enable_hw_ecc) {
+		retval = spinand_enable_ecc(spi_nand);
+		if (retval < 0) {
+			dev_err(&spi_nand->dev, "enable ecc failed!!\n");
+			return retval;
+		}
+	}
+#else
+	wbuf = buf;
+#endif
+	retval = spinand_write_enable(spi_nand);
+	if (retval < 0) {
+		dev_err(&spi_nand->dev, "write enable failed!!\n");
+		return retval;
+	}
+	if (wait_till_ready(spi_nand))
+		dev_err(&spi_nand->dev, "wait timedout!!!\n");
+
+	retval = spinand_program_data_to_cache(spi_nand, page_id,
+			offset, len, wbuf);
+	if (retval < 0)
+		return retval;
+	retval = spinand_program_execute(spi_nand, page_id);
+	if (retval < 0)
+		return retval;
+	while (1) {
+		retval = spinand_read_status(spi_nand, &status);
+		if (retval < 0) {
+			dev_err(&spi_nand->dev,
+					"error %d reading status register\n",
+					retval);
+			return retval;
+		}
+
+		if ((status & STATUS_OIP_MASK) == STATUS_READY) {
+			if ((status & STATUS_P_FAIL_MASK) == STATUS_P_FAIL) {
+				dev_err(&spi_nand->dev,
+					"program error, page %d\n", page_id);
+				return -1;
+			} else
+				break;
+		}
+	}
+#ifdef CONFIG_MTD_SPINAND_ONDIEECC
+	if (enable_hw_ecc) {
+		retval = spinand_disable_ecc(spi_nand);
+		if (retval < 0) {
+			dev_err(&spi_nand->dev, "disable ecc failed!!\n");
+			return retval;
+		}
+		enable_hw_ecc = 0;
+	}
+#endif
+
+	return 0;
+}
+
+/**
+ * spinand_erase_block_erase--to erase a page with:
+ * @block_id: the physical block location to erase.
+ *
+ * Description:
+ *   The command used here is 0xd8--indicating an erase command to erase
+ *   one block--64 pages
+ *   Need to wait for tERS.
+ */
+static int spinand_erase_block_erase(struct spi_device *spi_nand, u16 block_id)
+{
+	struct spinand_cmd cmd = {0};
+	u16 row;
+
+	row = block_id;
+	cmd.cmd = CMD_ERASE_BLK;
+	cmd.n_addr = 3;
+	cmd.addr[1] = (u8)((row & 0xff00) >> 8);
+	cmd.addr[2] = (u8)(row & 0x00ff);
+
+	return spinand_cmd(spi_nand, &cmd);
+}
+
+/**
+ * spinand_erase_block--to erase a page with:
+ * @block_id: the physical block location to erase.
+ *
+ * Description:
+ *   The commands used here are 0x06 and 0xd8--indicating an erase
+ *   command to erase one block--64 pages
+ *   It will first to enable the write enable bit (0x06 command),
+ *   and then send the 0xd8 erase command
+ *   Poll to wait for the tERS time to complete the tranaction.
+ */
+static int spinand_erase_block(struct spi_device *spi_nand, u16 block_id)
+{
+	int retval;
+	u8 status = 0;
+
+	retval = spinand_write_enable(spi_nand);
+	if (wait_till_ready(spi_nand))
+		dev_err(&spi_nand->dev, "wait timedout!!!\n");
+
+	retval = spinand_erase_block_erase(spi_nand, block_id);
+	while (1) {
+		retval = spinand_read_status(spi_nand, &status);
+		if (retval < 0) {
+			dev_err(&spi_nand->dev,
+					"error %d reading status register\n",
+					(int) retval);
+			return retval;
+		}
+
+		if ((status & STATUS_OIP_MASK) == STATUS_READY) {
+			if ((status & STATUS_E_FAIL_MASK) == STATUS_E_FAIL) {
+				dev_err(&spi_nand->dev,
+					"erase error, block %d\n", block_id);
+				return -1;
+			} else
+				break;
+		}
+	}
+	return 0;
+}
+
+#ifdef CONFIG_MTD_SPINAND_ONDIEECC
+static int spinand_write_page_hwecc(struct mtd_info *mtd,
+		struct nand_chip *chip, const uint8_t *buf, int oob_required)
+{
+	const uint8_t *p = buf;
+	int eccsize = chip->ecc.size;
+	int eccsteps = chip->ecc.steps;
+
+	enable_hw_ecc = 1;
+	chip->write_buf(mtd, p, eccsize * eccsteps);
+	return 0;
+}
+
+static int spinand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
+		uint8_t *buf, int oob_required, int page)
+{
+	u8 retval, status;
+	uint8_t *p = buf;
+	int eccsize = chip->ecc.size;
+	int eccsteps = chip->ecc.steps;
+	struct spinand_info *info = (struct spinand_info *)chip->priv;
+
+	enable_read_hw_ecc = 1;
+
+	chip->read_buf(mtd, p, eccsize * eccsteps);
+	if (oob_required)
+		chip->read_buf(mtd, chip->oob_poi, mtd->oobsize);
+
+	while (1) {
+		retval = spinand_read_status(info->spi, &status);
+		if ((status & STATUS_OIP_MASK) == STATUS_READY) {
+			if ((status & STATUS_ECC_MASK) == STATUS_ECC_ERROR) {
+				pr_info("spinand: ECC error\n");
+				mtd->ecc_stats.failed++;
+			} else if ((status & STATUS_ECC_MASK) ==
+					STATUS_ECC_1BIT_CORRECTED)
+				mtd->ecc_stats.corrected++;
+			break;
+		}
+	}
+	return 0;
+
+}
+#endif
+
+static void spinand_select_chip(struct mtd_info *mtd, int dev)
+{
+}
+
+static uint8_t spinand_read_byte(struct mtd_info *mtd)
+{
+	struct spinand_state *state = mtd_to_state(mtd);
+	u8 data;
+
+	data = state->buf[state->buf_ptr];
+	state->buf_ptr++;
+	return data;
+}
+
+
+static int spinand_wait(struct mtd_info *mtd, struct nand_chip *chip)
+{
+	struct spinand_info *info = (struct spinand_info *)chip->priv;
+
+	unsigned long timeo = jiffies;
+	int retval, state = chip->state;
+	u8 status;
+
+	if (state == FL_ERASING)
+		timeo += (HZ * 400) / 1000;
+	else
+		timeo += (HZ * 20) / 1000;
+
+	while (time_before(jiffies, timeo)) {
+		retval = spinand_read_status(info->spi, &status);
+		if ((status & STATUS_OIP_MASK) == STATUS_READY)
+			return 0;
+
+		cond_resched();
+	}
+	return 0;
+}
+
+static void spinand_write_buf(struct mtd_info *mtd, const uint8_t *buf, int len)
+{
+
+	struct spinand_state *state = mtd_to_state(mtd);
+	memcpy(state->buf + state->buf_ptr, buf, len);
+	state->buf_ptr += len;
+}
+
+static void spinand_read_buf(struct mtd_info *mtd, uint8_t *buf, int len)
+{
+	struct spinand_state *state = mtd_to_state(mtd);
+	memcpy(buf, state->buf + state->buf_ptr, len);
+	state->buf_ptr += len;
+}
+
+/*
+ * spinand_reset- send RESET command "0xff" to the Nand device.
+ */
+static void spinand_reset(struct spi_device *spi_nand)
+{
+	struct spinand_cmd cmd = {0};
+
+	cmd.cmd = CMD_RESET;
+
+	if (spinand_cmd(spi_nand, &cmd) < 0)
+		pr_info("spinand reset failed!\n");
+
+	/* elapse 1ms before issuing any other command */
+	udelay(1000);
+
+	if (wait_till_ready(spi_nand))
+		dev_err(&spi_nand->dev, "wait timedout!\n");
+}
+
+static void spinand_cmdfunc(struct mtd_info *mtd, unsigned int command,
+		int column, int page)
+{
+	struct nand_chip *chip = (struct nand_chip *)mtd->priv;
+	struct spinand_info *info = (struct spinand_info *)chip->priv;
+	struct spinand_state *state = (struct spinand_state *)info->priv;
+
+	switch (command) {
+	/*
+	 * READ0 - read in first  0x800 bytes
+	 */
+	case NAND_CMD_READ1:
+	case NAND_CMD_READ0:
+		state->buf_ptr = 0;
+		spinand_read_page(info->spi, page, 0x0, 0x840, state->buf);
+		break;
+	/* READOOB reads only the OOB because no ECC is performed. */
+	case NAND_CMD_READOOB:
+		state->buf_ptr = 0;
+		spinand_read_page(info->spi, page, 0x800, 0x40, state->buf);
+		break;
+	case NAND_CMD_RNDOUT:
+		state->buf_ptr = column;
+		break;
+	case NAND_CMD_READID:
+		state->buf_ptr = 0;
+		spinand_read_id(info->spi, (u8 *)state->buf);
+		break;
+	case NAND_CMD_PARAM:
+		state->buf_ptr = 0;
+		break;
+	/* ERASE1 stores the block and page address */
+	case NAND_CMD_ERASE1:
+		spinand_erase_block(info->spi, page);
+		break;
+	/* ERASE2 uses the block and page address from ERASE1 */
+	case NAND_CMD_ERASE2:
+		break;
+	/* SEQIN sets up the addr buffer and all registers except the length */
+	case NAND_CMD_SEQIN:
+		state->col = column;
+		state->row = page;
+		state->buf_ptr = 0;
+		break;
+	/* PAGEPROG reuses all of the setup from SEQIN and adds the length */
+	case NAND_CMD_PAGEPROG:
+		spinand_program_page(info->spi, state->row, state->col,
+				state->buf_ptr, state->buf);
+		break;
+	case NAND_CMD_STATUS:
+		spinand_get_otp(info->spi, state->buf);
+		if (!(state->buf[0] & 0x80))
+			state->buf[0] = 0x80;
+		state->buf_ptr = 0;
+		break;
+	/* RESET command */
+	case NAND_CMD_RESET:
+		if (wait_till_ready(info->spi))
+			dev_err(&info->spi->dev, "WAIT timedout!!!\n");
+		/* a minimum of 250us must elapse before issuing RESET cmd*/
+		udelay(250);
+		spinand_reset(info->spi);
+		break;
+	default:
+		dev_err(&mtd->dev, "Unknown CMD: 0x%x\n", command);
+	}
+}
+
+/**
+ * spinand_lock_block- send write register 0x1f command to the Nand device
+ *
+ * Description:
+ *    After power up, all the Nand blocks are locked.  This function allows
+ *    one to unlock the blocks, and so it can be written or erased.
+ */
+static int spinand_lock_block(struct spi_device *spi_nand, u8 lock)
+{
+	struct spinand_cmd cmd = {0};
+	int ret;
+	u8 otp = 0;
+
+	ret = spinand_get_otp(spi_nand, &otp);
+
+	cmd.cmd = CMD_WRITE_REG;
+	cmd.n_addr = 1;
+	cmd.addr[0] = REG_BLOCK_LOCK;
+	cmd.n_tx = 1;
+	cmd.tx_buf = &lock;
+
+	ret = spinand_cmd(spi_nand, &cmd);
+	if (ret < 0)
+		dev_err(&spi_nand->dev, "error %d lock block\n", ret);
+
+	return ret;
+}
+/*
+ * spinand_probe - [spinand Interface]
+ * @spi_nand: registered device driver.
+ *
+ * Description:
+ *   To set up the device driver parameters to make the device available.
+ */
+static int spinand_probe(struct spi_device *spi_nand)
+{
+	struct mtd_info *mtd;
+	struct nand_chip *chip;
+	struct spinand_info *info;
+	struct spinand_state *state;
+	struct mtd_part_parser_data ppdata;
+
+	info  = devm_kzalloc(&spi_nand->dev, sizeof(struct spinand_info),
+			GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	info->spi = spi_nand;
+
+	spinand_lock_block(spi_nand, BL_ALL_UNLOCKED);
+
+	state = devm_kzalloc(&spi_nand->dev, sizeof(struct spinand_state),
+			GFP_KERNEL);
+	if (!state)
+		return -ENOMEM;
+
+	info->priv	= state;
+	state->buf_ptr	= 0;
+	state->buf	= devm_kzalloc(&spi_nand->dev, BUFSIZE, GFP_KERNEL);
+	if (!state->buf)
+		return -ENOMEM;
+
+	chip = devm_kzalloc(&spi_nand->dev, sizeof(struct nand_chip),
+			GFP_KERNEL);
+	if (!chip)
+		return -ENOMEM;
+
+#ifdef CONFIG_MTD_SPINAND_ONDIEECC
+	chip->ecc.mode	= NAND_ECC_HW;
+	chip->ecc.size	= 0x200;
+	chip->ecc.bytes	= 0x6;
+	chip->ecc.steps	= 0x4;
+
+	chip->ecc.strength = 1;
+	chip->ecc.total	= chip->ecc.steps * chip->ecc.bytes;
+	chip->ecc.layout = &spinand_oob_64;
+	chip->ecc.read_page = spinand_read_page_hwecc;
+	chip->ecc.write_page = spinand_write_page_hwecc;
+#else
+	chip->ecc.mode	= NAND_ECC_SOFT;
+	if (spinand_disable_ecc(spi_nand) < 0)
+		pr_info("%s: disable ecc failed!\n", __func__);
+#endif
+
+	chip->priv	= info;
+	chip->read_buf	= spinand_read_buf;
+	chip->write_buf	= spinand_write_buf;
+	chip->read_byte	= spinand_read_byte;
+	chip->cmdfunc	= spinand_cmdfunc;
+	chip->waitfunc	= spinand_wait;
+	chip->options	|= NAND_CACHEPRG;
+	chip->select_chip = spinand_select_chip;
+
+	mtd = devm_kzalloc(&spi_nand->dev, sizeof(struct mtd_info), GFP_KERNEL);
+	if (!mtd)
+		return -ENOMEM;
+
+	dev_set_drvdata(&spi_nand->dev, mtd);
+
+	mtd->priv = chip;
+	mtd->name = dev_name(&spi_nand->dev);
+	mtd->owner = THIS_MODULE;
+	mtd->oobsize = 64;
+
+	if (nand_scan(mtd, 1))
+		return -ENXIO;
+
+	ppdata.of_node = spi_nand->dev.of_node;
+	return mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
+}
+
+/*
+ * spinand_remove: Remove the device driver
+ * @spi: the spi device.
+ *
+ * Description:
+ *   To remove the device driver parameters and free up allocated memories.
+ */
+static int spinand_remove(struct spi_device *spi)
+{
+	mtd_device_unregister(dev_get_drvdata(&spi->dev));
+
+	return 0;
+}
+
+static const struct of_device_id spinand_dt[] = {
+	{ .compatible = "spinand,mt29f", },
+};
+
+/*
+ * Device name structure description
+ */
+static struct spi_driver spinand_driver = {
+	.driver = {
+		.name		= "mt29f",
+		.bus		= &spi_bus_type,
+		.owner		= THIS_MODULE,
+		.of_match_table	= spinand_dt,
+	},
+	.probe		= spinand_probe,
+	.remove		= spinand_remove,
+};
+
+/*
+ * Device driver registration
+ */
+static int __init spinand_init(void)
+{
+	return spi_register_driver(&spinand_driver);
+}
+
+/*
+ * unregister Device driver.
+ */
+static void __exit spinand_exit(void)
+{
+	spi_unregister_driver(&spinand_driver);
+}
+module_init(spinand_init);
+module_exit(spinand_exit);
+
+MODULE_DESCRIPTION("SPI NAND driver for Micron");
+MODULE_AUTHOR("Henry Pan <hspan@micron.com>, Kamlakant Patel <kamlakant.patel@broadcom.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/mt29f_spinand/mt29f_spinand.h b/drivers/staging/mt29f_spinand/mt29f_spinand.h
new file mode 100644
index 000000000000..7f2c24dc51b4
--- /dev/null
+++ b/drivers/staging/mt29f_spinand/mt29f_spinand.h
@@ -0,0 +1,107 @@
+/*-
+ * Copyright 2013 Broadcom Corporation
+ *
+ * Copyright (c) 2009-2010 Micron Technology, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Henry Pan <hspan@micron.com>
+ *
+ * based on nand.h
+ */
+#ifndef __LINUX_MTD_SPI_NAND_H
+#define __LINUX_MTD_SPI_NAND_H
+
+#include <linux/wait.h>
+#include <linux/spinlock.h>
+#include <linux/mtd/mtd.h>
+
+/* cmd */
+#define CMD_READ			0x13
+#define CMD_READ_RDM			0x03
+#define CMD_PROG_PAGE_CLRCACHE		0x02
+#define CMD_PROG_PAGE			0x84
+#define CMD_PROG_PAGE_EXC		0x10
+#define CMD_ERASE_BLK			0xd8
+#define CMD_WR_ENABLE			0x06
+#define CMD_WR_DISABLE			0x04
+#define CMD_READ_ID			0x9f
+#define CMD_RESET			0xff
+#define CMD_READ_REG			0x0f
+#define CMD_WRITE_REG			0x1f
+
+/* feature/ status reg */
+#define REG_BLOCK_LOCK			0xa0
+#define REG_OTP				0xb0
+#define REG_STATUS			0xc0/* timing */
+
+/* status */
+#define STATUS_OIP_MASK			0x01
+#define STATUS_READY			(0 << 0)
+#define STATUS_BUSY			(1 << 0)
+
+#define STATUS_E_FAIL_MASK		0x04
+#define STATUS_E_FAIL			(1 << 2)
+
+#define STATUS_P_FAIL_MASK		0x08
+#define STATUS_P_FAIL			(1 << 3)
+
+#define STATUS_ECC_MASK			0x30
+#define STATUS_ECC_1BIT_CORRECTED	(1 << 4)
+#define STATUS_ECC_ERROR		(2 << 4)
+#define STATUS_ECC_RESERVED		(3 << 4)
+
+/*ECC enable defines*/
+#define OTP_ECC_MASK			0x10
+#define OTP_ECC_OFF			0
+#define OTP_ECC_ON			1
+
+#define ECC_DISABLED
+#define ECC_IN_NAND
+#define ECC_SOFT
+
+/* block lock */
+#define BL_ALL_LOCKED      0x38
+#define BL_1_2_LOCKED      0x30
+#define BL_1_4_LOCKED      0x28
+#define BL_1_8_LOCKED      0x20
+#define BL_1_16_LOCKED     0x18
+#define BL_1_32_LOCKED     0x10
+#define BL_1_64_LOCKED     0x08
+#define BL_ALL_UNLOCKED    0
+
+struct spinand_info {
+	struct nand_ecclayout *ecclayout;
+	struct spi_device *spi;
+	void *priv;
+};
+
+struct spinand_state {
+	uint32_t	col;
+	uint32_t	row;
+	int		buf_ptr;
+	u8		*buf;
+};
+
+struct spinand_cmd {
+	u8		cmd;
+	u32		n_addr;		/* Number of address */
+	u8		addr[3];	/* Reg Offset */
+	u32		n_dummy;	/* Dummy use */
+	u32		n_tx;		/* Number of tx bytes */
+	u8		*tx_buf;	/* Tx buf */
+	u32		n_rx;		/* Number of rx bytes */
+	u8		*rx_buf;	/* Rx buf */
+};
+
+extern int spinand_mtd(struct mtd_info *mtd);
+extern void spinand_mtd_release(struct mtd_info *mtd);
+
+#endif /* __LINUX_MTD_SPI_NAND_H */
-- 
cgit 


From 0a0f4b69590cf607eba45062c65976040e15b084 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Tue, 1 Oct 2013 15:50:24 +0100
Subject: staging: vt6656: rxtx.c change tx functions to return u16

s_vGenerateTxParameter, s_vFillCTSHead, s_vFillRTSHead, vnt_rxtx_rts* functions
to return u16

Initially this is the duration_id field for ieee80211_hdr

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/rxtx.c | 32 +++++++++++++++++++-------------
 1 file changed, 19 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index 6b12d0cc6ef2..c18861b4f371 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -98,7 +98,7 @@ static void s_vSaveTxPktInfo(struct vnt_private *pDevice, u8 byPktNum,
 
 static void *s_vGetFreeContext(struct vnt_private *pDevice);
 
-static void s_vGenerateTxParameter(struct vnt_private *pDevice,
+static u16 s_vGenerateTxParameter(struct vnt_private *pDevice,
 	u8 byPktType, u16 wCurrentRate,	struct vnt_tx_buffer *tx_buffer,
 	struct vnt_mic_hdr **mic_hdr, u32 need_mic, u32 cbFrameSize,
 	int bNeedACK, u32 uDMAIdx, struct ethhdr *psEthHeader, bool need_rts);
@@ -124,11 +124,11 @@ static unsigned int s_uGetTxRsvTime(struct vnt_private *pDevice, u8 byPktType,
 static u16 s_uGetRTSCTSRsvTime(struct vnt_private *pDevice, u8 byRTSRsvType,
 	u8 byPktType, u32 cbFrameLength, u16 wCurrentRate);
 
-static void s_vFillCTSHead(struct vnt_private *pDevice, u32 uDMAIdx,
+static u16 s_vFillCTSHead(struct vnt_private *pDevice, u32 uDMAIdx,
 	u8 byPktType, union vnt_tx_data_head *head, u32 cbFrameLength,
 	int bNeedAck, u16 wCurrentRate, u8 byFBOption);
 
-static void s_vFillRTSHead(struct vnt_private *pDevice, u8 byPktType,
+static u16 s_vFillRTSHead(struct vnt_private *pDevice, u8 byPktType,
 	union vnt_tx_data_head *head, u32 cbFrameLength, int bNeedAck,
 	struct ethhdr *psEthHeader, u16 wCurrentRate, u8 byFBOption);
 
@@ -632,7 +632,7 @@ static int vnt_fill_ieee80211_rts(struct vnt_private *priv,
 	return 0;
 }
 
-static int vnt_rxtx_rts_g_head(struct vnt_private *priv,
+static u16 vnt_rxtx_rts_g_head(struct vnt_private *priv,
 	struct vnt_rts_g *buf, struct ethhdr *eth_hdr,
 	u8 pkt_type, u32 frame_len, int need_ack,
 	u16 current_rate, u8 fb_option)
@@ -656,7 +656,7 @@ static int vnt_rxtx_rts_g_head(struct vnt_private *priv,
 	return 0;
 }
 
-static int vnt_rxtx_rts_g_fb_head(struct vnt_private *priv,
+static u16 vnt_rxtx_rts_g_fb_head(struct vnt_private *priv,
 	struct vnt_rts_g_fb *buf, struct ethhdr *eth_hdr,
 	u8 pkt_type, u32 frame_len, int need_ack,
 	u16 current_rate, u8 fb_option)
@@ -691,7 +691,7 @@ static int vnt_rxtx_rts_g_fb_head(struct vnt_private *priv,
 	return 0;
 }
 
-static int vnt_rxtx_rts_ab_head(struct vnt_private *priv,
+static u16 vnt_rxtx_rts_ab_head(struct vnt_private *priv,
 	struct vnt_rts_ab *buf, struct ethhdr *eth_hdr,
 	u8 pkt_type, u32 frame_len, int need_ack,
 	u16 current_rate, u8 fb_option)
@@ -709,7 +709,7 @@ static int vnt_rxtx_rts_ab_head(struct vnt_private *priv,
 	return 0;
 }
 
-static int vnt_rxtx_rts_a_fb_head(struct vnt_private *priv,
+static u16 vnt_rxtx_rts_a_fb_head(struct vnt_private *priv,
 	struct vnt_rts_a_fb *buf, struct ethhdr *eth_hdr,
 	u8 pkt_type, u32 frame_len, int need_ack,
 	u16 current_rate, u8 fb_option)
@@ -733,13 +733,13 @@ static int vnt_rxtx_rts_a_fb_head(struct vnt_private *priv,
 	return 0;
 }
 
-static void s_vFillRTSHead(struct vnt_private *pDevice, u8 byPktType,
+static u16 s_vFillRTSHead(struct vnt_private *pDevice, u8 byPktType,
 	union vnt_tx_data_head *head, u32 cbFrameLength, int bNeedAck,
 	struct ethhdr *psEthHeader, u16 wCurrentRate, u8 byFBOption)
 {
 
 	if (!head)
-		return;
+		return 0;
 
 	/* Note: So far RTSHead doesn't appear in ATIM
 	*	& Beacom DMA, so we don't need to take them
@@ -770,16 +770,18 @@ static void s_vFillRTSHead(struct vnt_private *pDevice, u8 byPktType,
 			psEthHeader, byPktType, cbFrameLength,
 			bNeedAck, wCurrentRate, byFBOption);
 	}
+
+	return 0;
 }
 
-static void s_vFillCTSHead(struct vnt_private *pDevice, u32 uDMAIdx,
+static u16 s_vFillCTSHead(struct vnt_private *pDevice, u32 uDMAIdx,
 	u8 byPktType, union vnt_tx_data_head *head, u32 cbFrameLength,
 	int bNeedAck, u16 wCurrentRate, u8 byFBOption)
 {
 	u32 uCTSFrameLen = 14;
 
 	if (!head)
-		return;
+		return 0;
 
 	if (byFBOption != AUTO_FB_NONE) {
 		/* Auto Fall back */
@@ -816,6 +818,8 @@ static void s_vFillCTSHead(struct vnt_private *pDevice, u32 uDMAIdx,
 		pBuf->data.frame_control = TYPE_CTL_CTS;
 		memcpy(pBuf->data.ra, pDevice->abyCurrentNetAddr, ETH_ALEN);
         }
+
+	return 0;
 }
 
 /*+
@@ -841,7 +845,7 @@ static void s_vFillCTSHead(struct vnt_private *pDevice, u32 uDMAIdx,
  *
 -*/
 
-static void s_vGenerateTxParameter(struct vnt_private *pDevice,
+static u16 s_vGenerateTxParameter(struct vnt_private *pDevice,
 	u8 byPktType, u16 wCurrentRate,	struct vnt_tx_buffer *tx_buffer,
 	struct vnt_mic_hdr **mic_hdr, u32 need_mic, u32 cbFrameSize,
 	int bNeedACK, u32 uDMAIdx, struct ethhdr *psEthHeader, bool need_rts)
@@ -864,7 +868,7 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
     }
 
 	if (!pFifoHead)
-		return;
+		return 0;
 
     if (pDevice->bLongHeader)
         cbMACHdLen = WLAN_HDR_ADDR3_LEN + 6;
@@ -985,6 +989,8 @@ static void s_vGenerateTxParameter(struct vnt_private *pDevice,
         }
     }
     //DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"s_vGenerateTxParameter END.\n");
+
+	return 0;
 }
 /*
     u8 * pbyBuffer,//point to pTxBufHead
-- 
cgit 


From 78363fd187f4f0cd650bb6ec2dd727bbc57c6394 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Tue, 1 Oct 2013 15:52:16 +0100
Subject: staging: vt6656: rxtx.c Parse struct vnt_tx_datahead_g

Parse struct vnt_tx_datahead_g from s_uFillDataHead and
move to struct vnt_rts_g/struct vnt_cts structure.

This removes pvTxDataHd pointer assignment.

The duration_id(uDuration) field is now returned in s_vGenerateTxParameter.

The return of s_uFillDataHead temporary or'ed to retain functionality of
other functions and is removed at the end of this patch series.

Since pvTxDataHd is now null a small vendor hack to vDMA0_tx_80211/csMgmt_xmit
to do with Disassociation-packet is also changed correct head position.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/rxtx.c | 107 ++++++++++++++++++++----------------------
 drivers/staging/vt6656/rxtx.h |   2 +
 2 files changed, 54 insertions(+), 55 deletions(-)

diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index c18861b4f371..851b87b72422 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -511,6 +511,25 @@ static u16 s_uGetRTSCTSDuration(struct vnt_private *pDevice, u8 byDurType,
 	return cpu_to_le16((u16)uDurTime);
 }
 
+static u16 vnt_rxtx_datahead_g(struct vnt_private *priv, u8 pkt_type, u16 rate,
+		struct vnt_tx_datahead_g *buf, u32 frame_len, int need_ack)
+{
+	/* Get SignalField,ServiceField,Length */
+	BBvCalculateParameter(priv, frame_len, rate, pkt_type, &buf->a);
+	BBvCalculateParameter(priv, frame_len, priv->byTopCCKBasicRate,
+							PK_TYPE_11B, &buf->b);
+
+	/* Get Duration and TimeStamp */
+	buf->wDuration_a = s_uGetDataDuration(priv, pkt_type, need_ack);
+	buf->wDuration_b = s_uGetDataDuration(priv, PK_TYPE_11B, need_ack);
+
+	buf->wTimeStampOff_a = vnt_time_stamp_off(priv, rate);
+	buf->wTimeStampOff_b = vnt_time_stamp_off(priv,
+					priv->byTopCCKBasicRate);
+
+	return buf->wDuration_a;
+}
+
 static u32 s_uFillDataHead(struct vnt_private *pDevice,
 	u8 byPktType, u16 wCurrentRate, void *pTxDataHead, u32 cbFrameLength,
 	u32 uDMAIdx, int bNeedAck, u8 byFBOption)
@@ -522,24 +541,7 @@ static u32 s_uFillDataHead(struct vnt_private *pDevice,
 
     if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
             if (byFBOption == AUTO_FB_NONE) {
-		struct vnt_tx_datahead_g *pBuf =
-				(struct vnt_tx_datahead_g *)pTxDataHead;
-                //Get SignalField,ServiceField,Length
-		BBvCalculateParameter(pDevice, cbFrameLength, wCurrentRate,
-			byPktType, &pBuf->a);
-		BBvCalculateParameter(pDevice, cbFrameLength,
-			pDevice->byTopCCKBasicRate, PK_TYPE_11B, &pBuf->b);
-                //Get Duration and TimeStamp
-		pBuf->wDuration_a = s_uGetDataDuration(pDevice,
-							byPktType, bNeedAck);
-		pBuf->wDuration_b = s_uGetDataDuration(pDevice,
-							PK_TYPE_11B, bNeedAck);
-
-		pBuf->wTimeStampOff_a =	vnt_time_stamp_off(pDevice,
-								wCurrentRate);
-		pBuf->wTimeStampOff_b = vnt_time_stamp_off(pDevice,
-						pDevice->byTopCCKBasicRate);
-                return (pBuf->wDuration_a);
+		;
              } else {
                 // Auto Fallback
 		struct vnt_tx_datahead_g_fb *pBuf =
@@ -653,7 +655,8 @@ static u16 vnt_rxtx_rts_g_head(struct vnt_private *priv,
 
 	vnt_fill_ieee80211_rts(priv, &buf->data, eth_hdr, buf->wDuration_aa);
 
-	return 0;
+	return vnt_rxtx_datahead_g(priv, pkt_type, current_rate,
+			&buf->data_head, frame_len, need_ack);
 }
 
 static u16 vnt_rxtx_rts_g_fb_head(struct vnt_private *priv,
@@ -750,7 +753,7 @@ static u16 s_vFillRTSHead(struct vnt_private *pDevice, u8 byPktType,
 	case PK_TYPE_11GB:
 	case PK_TYPE_11GA:
 		if (byFBOption == AUTO_FB_NONE)
-			vnt_rxtx_rts_g_head(pDevice, &head->rts_g,
+			return vnt_rxtx_rts_g_head(pDevice, &head->rts_g,
 				psEthHeader, byPktType, cbFrameLength,
 				bNeedAck, wCurrentRate, byFBOption);
 		else
@@ -817,6 +820,9 @@ static u16 s_vFillCTSHead(struct vnt_private *pDevice, u32 uDMAIdx,
 		pBuf->data.duration = pBuf->wDuration_ba;
 		pBuf->data.frame_control = TYPE_CTL_CTS;
 		memcpy(pBuf->data.ra, pDevice->abyCurrentNetAddr, ETH_ALEN);
+
+		return vnt_rxtx_datahead_g(pDevice, byPktType, wCurrentRate,
+				&pBuf->data_head, cbFrameLength, bNeedAck);
         }
 
 	return 0;
@@ -898,7 +904,7 @@ static u16 s_vGenerateTxParameter(struct vnt_private *pDevice,
 		}
 
 		/* Fill RTS */
-		s_vFillRTSHead(pDevice, byPktType, head, cbFrameSize,
+		return s_vFillRTSHead(pDevice, byPktType, head, cbFrameSize,
 			bNeedACK, psEthHeader, wCurrentRate, byFBOption);
         }
         else {//RTS_needless, PCF mode
@@ -921,7 +927,7 @@ static u16 s_vGenerateTxParameter(struct vnt_private *pDevice,
 		}
 
 		/* Fill CTS */
-		s_vFillCTSHead(pDevice, uDMAIdx, byPktType, head,
+		return s_vFillCTSHead(pDevice, uDMAIdx, byPktType, head,
 			cbFrameSize, bNeedACK, wCurrentRate, byFBOption);
         }
     }
@@ -1153,20 +1159,12 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
     if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
         if (byFBOption == AUTO_FB_NONE) {
             if (bRTS == true) {//RTS_need
-		pvTxDataHd = (struct vnt_tx_datahead_g *) (pbyTxBufferAddr +
-			wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
-				cbMICHDR + sizeof(struct vnt_rts_g));
 		cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
-			cbMICHDR + sizeof(struct vnt_rts_g) +
-				sizeof(struct vnt_tx_datahead_g);
+			cbMICHDR + sizeof(struct vnt_rts_g);
             }
             else { //RTS_needless
-		pvTxDataHd = (struct vnt_tx_datahead_g *)(pbyTxBufferAddr +
-			wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
-				cbMICHDR + sizeof(struct vnt_cts));
 		cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
-			cbMICHDR + sizeof(struct vnt_cts) +
-				sizeof(struct vnt_tx_datahead_g);
+			cbMICHDR + sizeof(struct vnt_cts);
             }
         } else {
             // Auto Fall Back
@@ -1235,13 +1233,13 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
     //uDMAIdx = TYPE_AC0DMA;
     //pTxBufHead = (PSTxBufHead) &(pTxBufHead->adwTxKey[0]);
 
-    //Fill FIFO,RrvTime,RTS,and CTS
-    s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
-		tx_buffer, &pMICHDR, cbMICHDR,
-		cbFrameSize, bNeedACK, uDMAIdx, psEthHeader, bRTS);
+	/* Fill FIFO, RrvTime, RTS and CTS */
+	uDuration = s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
+			tx_buffer, &pMICHDR, cbMICHDR,
+			cbFrameSize, bNeedACK, uDMAIdx, psEthHeader, bRTS);
     //Fill DataHead
-    uDuration = s_uFillDataHead(pDevice, byPktType, wCurrentRate, pvTxDataHd, cbFrameSize, uDMAIdx, bNeedACK,
-				byFBOption);
+    uDuration |= s_uFillDataHead(pDevice, byPktType, wCurrentRate, pvTxDataHd,
+		cbFrameSize, uDMAIdx, bNeedACK,	byFBOption);
     // Generate TX MAC Header
     s_vGenerateMACHeader(pDevice, pbyMacHdr, (u16)uDuration, psEthHeader, bNeedEncryption,
                            byFragType, uDMAIdx, 0);
@@ -1607,10 +1605,8 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
 
     //Set RrvTime/RTS/CTS Buffer
     if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
-	pvTxDataHd = (struct vnt_tx_datahead_g *)(pbyTxBufferAddr + wTxBufSize +
-		sizeof(struct vnt_rrv_time_cts) + sizeof(struct vnt_cts));
 	cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
-		sizeof(struct vnt_cts) + sizeof(struct vnt_tx_datahead_g);
+		sizeof(struct vnt_cts);
     }
     else { // 802.11a/b packet
 	pvTxDataHd = (struct vnt_tx_datahead_ab *) (pbyTxBufferAddr +
@@ -1631,13 +1627,13 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
     pTxBufHead->wFragCtl |= (u16)FRAGCTL_NONFRAG;
 
 	/* Fill FIFO,RrvTime,RTS,and CTS */
-	s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
+	uDuration = s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
 		pTX_Buffer, &pMICHDR, 0,
 		cbFrameSize, bNeedACK, TYPE_TXDMA0, &sEthHeader, false);
 
     //Fill DataHead
-    uDuration = s_uFillDataHead(pDevice, byPktType, wCurrentRate, pvTxDataHd, cbFrameSize, TYPE_TXDMA0, bNeedACK,
-				AUTO_FB_NONE);
+    uDuration |= s_uFillDataHead(pDevice, byPktType, wCurrentRate, pvTxDataHd,
+		cbFrameSize, TYPE_TXDMA0, bNeedACK, AUTO_FB_NONE);
 
     pMACHeader = (struct ieee80211_hdr *) (pbyTxBufferAddr + cbHeaderSize);
 
@@ -1701,9 +1697,11 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
         // in the same place of other packet's Duration-field).
         // And it will cause Cisco-AP to issue Disassociation-packet
 	if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
-		((struct vnt_tx_datahead_g *)pvTxDataHd)->wDuration_a =
+		struct vnt_tx_datahead_g *data_head = &pTX_Buffer->tx_head.
+						tx_cts.tx.head.cts_g.data_head;
+		data_head->wDuration_a =
 			cpu_to_le16(pPacket->p80211Header->sA2.wDurationID);
-		((struct vnt_tx_datahead_g *)pvTxDataHd)->wDuration_b =
+		data_head->wDuration_b =
 			cpu_to_le16(pPacket->p80211Header->sA2.wDurationID);
 	} else {
 		((struct vnt_tx_datahead_ab *)pvTxDataHd)->wDuration =
@@ -2010,11 +2008,8 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
     //the rest of pTxBufHead->wFragCtl:FragTyp will be set later in s_vFillFragParameter()
 
     if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {//802.11g packet
-	pvTxDataHd = (struct vnt_tx_datahead_g *) (pbyTxBufferAddr +
-		wTxBufSize + sizeof(struct vnt_rrv_time_cts) + cbMICHDR +
-					sizeof(struct vnt_cts));
 	cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_cts) + cbMICHDR +
-		sizeof(struct vnt_cts) + sizeof(struct vnt_tx_datahead_g);
+		sizeof(struct vnt_cts);
 
     }
     else {//802.11a/b packet
@@ -2035,13 +2030,13 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
     pTxBufHead->wFragCtl |= (u16)FRAGCTL_NONFRAG;
 
 	/* Fill FIFO,RrvTime,RTS,and CTS */
-	s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
+	uDuration = s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
 		pTX_Buffer, &pMICHDR, cbMICHDR,
 		cbFrameSize, bNeedACK, TYPE_TXDMA0, &sEthHeader, false);
 
     //Fill DataHead
-    uDuration = s_uFillDataHead(pDevice, byPktType, wCurrentRate, pvTxDataHd, cbFrameSize, TYPE_TXDMA0, bNeedACK,
-				AUTO_FB_NONE);
+    uDuration |= s_uFillDataHead(pDevice, byPktType, wCurrentRate, pvTxDataHd,
+		cbFrameSize, TYPE_TXDMA0, bNeedACK, AUTO_FB_NONE);
 
     pMACHeader = (struct ieee80211_hdr *) (pbyTxBufferAddr + cbHeaderSize);
 
@@ -2151,9 +2146,11 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
         // in the same place of other packet's Duration-field).
         // And it will cause Cisco-AP to issue Disassociation-packet
 	if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
-		((struct vnt_tx_datahead_g *)pvTxDataHd)->wDuration_a =
+		struct vnt_tx_datahead_g *data_head = &pTX_Buffer->tx_head.
+						tx_cts.tx.head.cts_g.data_head;
+		data_head->wDuration_a =
 			cpu_to_le16(p80211Header->sA2.wDurationID);
-		((struct vnt_tx_datahead_g *)pvTxDataHd)->wDuration_b =
+		data_head->wDuration_b =
 			cpu_to_le16(p80211Header->sA2.wDurationID);
 	} else {
 		((struct vnt_tx_datahead_ab *)pvTxDataHd)->wDuration =
diff --git a/drivers/staging/vt6656/rxtx.h b/drivers/staging/vt6656/rxtx.h
index bbda9a3a83c0..ea20e94246c2 100644
--- a/drivers/staging/vt6656/rxtx.h
+++ b/drivers/staging/vt6656/rxtx.h
@@ -117,6 +117,7 @@ struct vnt_rts_g {
 	u16 wDuration_bb;
 	u16 wReserved;
 	struct ieee80211_rts data;
+	struct vnt_tx_datahead_g data_head;
 } __packed;
 
 struct vnt_rts_g_fb {
@@ -156,6 +157,7 @@ struct vnt_cts {
 	u16 wReserved;
 	struct ieee80211_cts data;
 	u16 reserved2;
+	struct vnt_tx_datahead_g data_head;
 } __packed;
 
 struct vnt_cts_fb {
-- 
cgit 


From 5b852f53528f57fdfdd6e26129fb0ad63e696400 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Tue, 1 Oct 2013 15:54:56 +0100
Subject: staging: vt6656: rxtx.c Parse struct vnt_tx_datahead_g_fb

Parse struct vnt_tx_datahead_g_fb from s_uFillDataHead and
move to struct vnt_rts_g_fb/struct vnt_cts_fb structure returning
duration down functions.

This removes pvTxDataHd pointer assignment.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/rxtx.c | 74 +++++++++++++++++++------------------------
 drivers/staging/vt6656/rxtx.h |  2 ++
 2 files changed, 35 insertions(+), 41 deletions(-)

diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index 851b87b72422..370d588a8490 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -530,6 +530,30 @@ static u16 vnt_rxtx_datahead_g(struct vnt_private *priv, u8 pkt_type, u16 rate,
 	return buf->wDuration_a;
 }
 
+static u16 vnt_rxtx_datahead_g_fb(struct vnt_private *priv, u8 pkt_type,
+		u16 rate, struct vnt_tx_datahead_g_fb *buf,
+		u32 frame_len, int need_ack)
+{
+	/* Get SignalField,ServiceField,Length */
+	BBvCalculateParameter(priv, frame_len, rate, pkt_type, &buf->a);
+
+	BBvCalculateParameter(priv, frame_len, priv->byTopCCKBasicRate,
+						PK_TYPE_11B, &buf->b);
+
+	/* Get Duration and TimeStamp */
+	buf->wDuration_a = s_uGetDataDuration(priv, pkt_type, need_ack);
+	buf->wDuration_b = s_uGetDataDuration(priv, PK_TYPE_11B, need_ack);
+
+	buf->wDuration_a_f0 = s_uGetDataDuration(priv, pkt_type, need_ack);
+	buf->wDuration_a_f1 = s_uGetDataDuration(priv, pkt_type, need_ack);
+
+	buf->wTimeStampOff_a = vnt_time_stamp_off(priv, rate);
+	buf->wTimeStampOff_b = vnt_time_stamp_off(priv,
+						priv->byTopCCKBasicRate);
+
+	return buf->wDuration_a;
+}
+
 static u32 s_uFillDataHead(struct vnt_private *pDevice,
 	u8 byPktType, u16 wCurrentRate, void *pTxDataHead, u32 cbFrameLength,
 	u32 uDMAIdx, int bNeedAck, u8 byFBOption)
@@ -539,35 +563,7 @@ static u32 s_uFillDataHead(struct vnt_private *pDevice,
         return 0;
     }
 
-    if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
-            if (byFBOption == AUTO_FB_NONE) {
-		;
-             } else {
-                // Auto Fallback
-		struct vnt_tx_datahead_g_fb *pBuf =
-			(struct vnt_tx_datahead_g_fb *)pTxDataHead;
-                //Get SignalField,ServiceField,Length
-		BBvCalculateParameter(pDevice, cbFrameLength, wCurrentRate,
-			byPktType, &pBuf->a);
-		BBvCalculateParameter(pDevice, cbFrameLength,
-			pDevice->byTopCCKBasicRate, PK_TYPE_11B, &pBuf->b);
-                //Get Duration and TimeStamp
-		pBuf->wDuration_a = s_uGetDataDuration(pDevice,
-							byPktType, bNeedAck);
-		pBuf->wDuration_b = s_uGetDataDuration(pDevice,
-							PK_TYPE_11B, bNeedAck);
-		pBuf->wDuration_a_f0 = s_uGetDataDuration(pDevice,
-							byPktType, bNeedAck);
-		pBuf->wDuration_a_f1 = s_uGetDataDuration(pDevice,
-							byPktType, bNeedAck);
-		pBuf->wTimeStampOff_a = vnt_time_stamp_off(pDevice,
-								wCurrentRate);
-		pBuf->wTimeStampOff_b = vnt_time_stamp_off(pDevice,
-						pDevice->byTopCCKBasicRate);
-                return (pBuf->wDuration_a);
-            } //if (byFBOption == AUTO_FB_NONE)
-    }
-    else if (byPktType == PK_TYPE_11A) {
+    if (byPktType == PK_TYPE_11A) {
 	if (byFBOption != AUTO_FB_NONE) {
 		struct vnt_tx_datahead_a_fb *pBuf =
 			(struct vnt_tx_datahead_a_fb *)pTxDataHead;
@@ -691,7 +687,8 @@ static u16 vnt_rxtx_rts_g_fb_head(struct vnt_private *priv,
 
 	vnt_fill_ieee80211_rts(priv, &buf->data, eth_hdr, buf->wDuration_aa);
 
-	return 0;
+	return vnt_rxtx_datahead_g_fb(priv, pkt_type, current_rate,
+			&buf->data_head, frame_len, need_ack);
 }
 
 static u16 vnt_rxtx_rts_ab_head(struct vnt_private *priv,
@@ -757,7 +754,7 @@ static u16 s_vFillRTSHead(struct vnt_private *pDevice, u8 byPktType,
 				psEthHeader, byPktType, cbFrameLength,
 				bNeedAck, wCurrentRate, byFBOption);
 		else
-			vnt_rxtx_rts_g_fb_head(pDevice, &head->rts_g_fb,
+			return vnt_rxtx_rts_g_fb_head(pDevice, &head->rts_g_fb,
 				psEthHeader, byPktType, cbFrameLength,
 				bNeedAck, wCurrentRate, byFBOption);
 		break;
@@ -807,6 +804,9 @@ static u16 s_vFillCTSHead(struct vnt_private *pDevice, u32 uDMAIdx,
 		pBuf->data.duration = pBuf->wDuration_ba;
 		pBuf->data.frame_control = TYPE_CTL_CTS;
 		memcpy(pBuf->data.ra, pDevice->abyCurrentNetAddr, ETH_ALEN);
+
+		return vnt_rxtx_datahead_g_fb(pDevice, byPktType, wCurrentRate,
+				&pBuf->data_head, cbFrameLength, bNeedAck);
 	} else {
 		struct vnt_cts *pBuf = &head->cts_g;
 		/* Get SignalField,ServiceField,Length */
@@ -1169,20 +1169,12 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
         } else {
             // Auto Fall Back
             if (bRTS == true) {//RTS_need
-		pvTxDataHd = (struct vnt_tx_datahead_g_fb *) (pbyTxBufferAddr +
-			wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
-				cbMICHDR + sizeof(struct vnt_rts_g_fb));
 		cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_rts) +
-			cbMICHDR + sizeof(struct vnt_rts_g_fb) +
-				sizeof(struct vnt_tx_datahead_g_fb);
+			cbMICHDR + sizeof(struct vnt_rts_g_fb);
             }
             else if (bRTS == false) { //RTS_needless
-		pvTxDataHd = (struct vnt_tx_datahead_g_fb *) (pbyTxBufferAddr +
-			wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
-				cbMICHDR + sizeof(struct vnt_cts_fb));
 		cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_cts) +
-				cbMICHDR + sizeof(struct vnt_cts_fb) +
-					sizeof(struct vnt_tx_datahead_g_fb);
+				cbMICHDR + sizeof(struct vnt_cts_fb);
             }
         } // Auto Fall Back
     }
diff --git a/drivers/staging/vt6656/rxtx.h b/drivers/staging/vt6656/rxtx.h
index ea20e94246c2..0a022cf1803e 100644
--- a/drivers/staging/vt6656/rxtx.h
+++ b/drivers/staging/vt6656/rxtx.h
@@ -132,6 +132,7 @@ struct vnt_rts_g_fb {
 	u16 wRTSDuration_ba_f1;
 	u16 wRTSDuration_aa_f1;
 	struct ieee80211_rts data;
+	struct vnt_tx_datahead_g_fb data_head;
 } __packed;
 
 struct vnt_rts_ab {
@@ -168,6 +169,7 @@ struct vnt_cts_fb {
 	u16 wCTSDuration_ba_f1;
 	struct ieee80211_cts data;
 	u16 reserved2;
+	struct vnt_tx_datahead_g_fb data_head;
 } __packed;
 
 union vnt_tx_data_head {
-- 
cgit 


From bd3f51f1ad7591b32bb126f36846a84cab282455 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Tue, 1 Oct 2013 15:56:48 +0100
Subject: staging: vt6656: rxtx.c parse out struct vnt_tx_datahead_a_fb

Parse struct vnt_tx_datahead_a_fb from s_uFillDataHead and
move to struct vnt_rts_a_fb structure returning duration down
functions.

This removes pvTxDataHd pointer assignment.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/rxtx.c | 49 ++++++++++++++++++++++++-------------------
 drivers/staging/vt6656/rxtx.h |  1 +
 2 files changed, 28 insertions(+), 22 deletions(-)

diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index 370d588a8490..a64564c23a2c 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -554,6 +554,23 @@ static u16 vnt_rxtx_datahead_g_fb(struct vnt_private *priv, u8 pkt_type,
 	return buf->wDuration_a;
 }
 
+static u16 vnt_rxtx_datahead_a_fb(struct vnt_private *priv, u8 pkt_type,
+		u16 rate, struct vnt_tx_datahead_a_fb *buf,
+		u32 frame_len, int need_ack)
+{
+	/* Get SignalField,ServiceField,Length */
+	BBvCalculateParameter(priv, frame_len, rate, pkt_type, &buf->a);
+	/* Get Duration and TimeStampOff */
+	buf->wDuration = s_uGetDataDuration(priv, pkt_type, need_ack);
+
+	buf->wDuration_f0 = s_uGetDataDuration(priv, pkt_type, need_ack);
+	buf->wDuration_f1 = s_uGetDataDuration(priv, pkt_type, need_ack);
+
+	buf->wTimeStampOff = vnt_time_stamp_off(priv, rate);
+
+	return buf->wDuration;
+}
+
 static u32 s_uFillDataHead(struct vnt_private *pDevice,
 	u8 byPktType, u16 wCurrentRate, void *pTxDataHead, u32 cbFrameLength,
 	u32 uDMAIdx, int bNeedAck, u8 byFBOption)
@@ -567,19 +584,9 @@ static u32 s_uFillDataHead(struct vnt_private *pDevice,
 	if (byFBOption != AUTO_FB_NONE) {
 		struct vnt_tx_datahead_a_fb *pBuf =
 			(struct vnt_tx_datahead_a_fb *)pTxDataHead;
-            //Get SignalField,ServiceField,Length
-		BBvCalculateParameter(pDevice, cbFrameLength, wCurrentRate,
-			byPktType, &pBuf->a);
-            //Get Duration and TimeStampOff
-		pBuf->wDuration = s_uGetDataDuration(pDevice,
-					byPktType, bNeedAck);
-		pBuf->wDuration_f0 = s_uGetDataDuration(pDevice,
-					byPktType, bNeedAck);
-		pBuf->wDuration_f1 = s_uGetDataDuration(pDevice,
-							byPktType, bNeedAck);
-		pBuf->wTimeStampOff = vnt_time_stamp_off(pDevice,
-								wCurrentRate);
-            return (pBuf->wDuration);
+
+		return vnt_rxtx_datahead_a_fb(pDevice, byPktType, wCurrentRate,
+					pBuf, cbFrameLength, bNeedAck);
         } else {
 		struct vnt_tx_datahead_ab *pBuf =
 			(struct vnt_tx_datahead_ab *)pTxDataHead;
@@ -730,7 +737,8 @@ static u16 vnt_rxtx_rts_a_fb_head(struct vnt_private *priv,
 
 	vnt_fill_ieee80211_rts(priv, &buf->data, eth_hdr, buf->wDuration);
 
-	return 0;
+	return vnt_rxtx_datahead_a_fb(priv, pkt_type, current_rate,
+			&buf->data_head, frame_len, need_ack);
 }
 
 static u16 s_vFillRTSHead(struct vnt_private *pDevice, u8 byPktType,
@@ -760,7 +768,7 @@ static u16 s_vFillRTSHead(struct vnt_private *pDevice, u8 byPktType,
 		break;
 	case PK_TYPE_11A:
 		if (byFBOption) {
-			vnt_rxtx_rts_a_fb_head(pDevice, &head->rts_a_fb,
+			return vnt_rxtx_rts_a_fb_head(pDevice, &head->rts_a_fb,
 				psEthHeader, byPktType, cbFrameLength,
 				bNeedAck, wCurrentRate, byFBOption);
 			break;
@@ -1197,12 +1205,8 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
         } else {
             // Auto Fall Back
             if (bRTS == true) {//RTS_need
-		pvTxDataHd = (struct vnt_tx_datahead_a_fb *)(pbyTxBufferAddr +
-			wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR +
-					sizeof(struct vnt_rts_a_fb));
 		cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
-			cbMICHDR + sizeof(struct vnt_rts_a_fb) +
-					sizeof(struct vnt_tx_datahead_a_fb);
+			cbMICHDR + sizeof(struct vnt_rts_a_fb);
             }
             else if (bRTS == false) { //RTS_needless
 		pvTxDataHd = (struct vnt_tx_datahead_a_fb *)(pbyTxBufferAddr +
@@ -1230,8 +1234,9 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 			tx_buffer, &pMICHDR, cbMICHDR,
 			cbFrameSize, bNeedACK, uDMAIdx, psEthHeader, bRTS);
     //Fill DataHead
-    uDuration |= s_uFillDataHead(pDevice, byPktType, wCurrentRate, pvTxDataHd,
-		cbFrameSize, uDMAIdx, bNeedACK,	byFBOption);
+	if (pvTxDataHd)
+    		uDuration |= s_uFillDataHead(pDevice, byPktType, wCurrentRate,
+		pvTxDataHd, cbFrameSize, uDMAIdx, bNeedACK, byFBOption);
     // Generate TX MAC Header
     s_vGenerateMACHeader(pDevice, pbyMacHdr, (u16)uDuration, psEthHeader, bNeedEncryption,
                            byFragType, uDMAIdx, 0);
diff --git a/drivers/staging/vt6656/rxtx.h b/drivers/staging/vt6656/rxtx.h
index 0a022cf1803e..3fd8507e8b9e 100644
--- a/drivers/staging/vt6656/rxtx.h
+++ b/drivers/staging/vt6656/rxtx.h
@@ -149,6 +149,7 @@ struct vnt_rts_a_fb {
 	u16 wRTSDuration_f0;
 	u16 wRTSDuration_f1;
 	struct ieee80211_rts data;
+	struct vnt_tx_datahead_a_fb data_head;
 } __packed;
 
 /* CTS buffer header */
-- 
cgit 


From a90186e4580925a1c80ed847ae9f7ceb79a39115 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Tue, 1 Oct 2013 15:58:54 +0100
Subject: staging: vt6656: rxtx.c add no rts struct vnt_tx_datahead_a_fb

Add no rts/cts vnt_tx_datahead_a_fb to union vnt_tx_data_head.

The need_mic now applies to all modes of packet type PK_TYPE_11A.

and return vnt_rxtx_datahead_a_fb in s_vGenerateTxParameter

This removes pvTxDataHd pointer assignment.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/rxtx.c | 30 ++++++++++--------------------
 drivers/staging/vt6656/rxtx.h |  2 ++
 2 files changed, 12 insertions(+), 20 deletions(-)

diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index a64564c23a2c..5344009f1edd 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -581,13 +581,6 @@ static u32 s_uFillDataHead(struct vnt_private *pDevice,
     }
 
     if (byPktType == PK_TYPE_11A) {
-	if (byFBOption != AUTO_FB_NONE) {
-		struct vnt_tx_datahead_a_fb *pBuf =
-			(struct vnt_tx_datahead_a_fb *)pTxDataHead;
-
-		return vnt_rxtx_datahead_a_fb(pDevice, byPktType, wCurrentRate,
-					pBuf, cbFrameLength, bNeedAck);
-        } else {
 		struct vnt_tx_datahead_ab *pBuf =
 			(struct vnt_tx_datahead_ab *)pTxDataHead;
             //Get SignalField,ServiceField,Length
@@ -599,7 +592,6 @@ static u32 s_uFillDataHead(struct vnt_private *pDevice,
 		pBuf->wTimeStampOff = vnt_time_stamp_off(pDevice,
 								wCurrentRate);
             return (pBuf->wDuration);
-        }
     }
     else if (byPktType == PK_TYPE_11B) {
 		struct vnt_tx_datahead_ab *pBuf =
@@ -940,6 +932,13 @@ static u16 s_vGenerateTxParameter(struct vnt_private *pDevice,
         }
     }
     else if (byPktType == PK_TYPE_11A) {
+	if (need_mic) {
+		*mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
+		head = &tx_buffer->tx_head.tx_ab.tx.mic.head;
+	} else {
+		head = &tx_buffer->tx_head.tx_ab.tx.head;
+	}
+
 	if (need_rts) {
             //Fill RsvTime
 		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.tx_ab.ab;
@@ -949,13 +948,6 @@ static u16 s_vGenerateTxParameter(struct vnt_private *pDevice,
 		pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice, byPktType,
 				cbFrameSize, wCurrentRate, bNeedACK);
 
-		if (need_mic) {
-			*mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
-			head = &tx_buffer->tx_head.tx_ab.tx.mic.head;
-		} else {
-			head = &tx_buffer->tx_head.tx_ab.tx.head;
-		}
-
 		/* Fill RTS */
 		s_vFillRTSHead(pDevice, byPktType, head, cbFrameSize,
 			bNeedACK, psEthHeader, wCurrentRate, byFBOption);
@@ -963,11 +955,11 @@ static u16 s_vGenerateTxParameter(struct vnt_private *pDevice,
             //Fill RsvTime
 		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.tx_ab.ab;
 
-		if (need_mic)
-			*mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
-
 		pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11A,
 			cbFrameSize, wCurrentRate, bNeedACK);
+
+		return vnt_rxtx_datahead_a_fb(pDevice, byPktType, wCurrentRate,
+			&head->data_head_a_fb, cbFrameSize, bNeedACK);
         }
     }
     else if (byPktType == PK_TYPE_11B) {
@@ -1209,8 +1201,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 			cbMICHDR + sizeof(struct vnt_rts_a_fb);
             }
             else if (bRTS == false) { //RTS_needless
-		pvTxDataHd = (struct vnt_tx_datahead_a_fb *)(pbyTxBufferAddr +
-			wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
 		cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
 			cbMICHDR + sizeof(struct vnt_tx_datahead_a_fb);
             }
diff --git a/drivers/staging/vt6656/rxtx.h b/drivers/staging/vt6656/rxtx.h
index 3fd8507e8b9e..d8f25d19030c 100644
--- a/drivers/staging/vt6656/rxtx.h
+++ b/drivers/staging/vt6656/rxtx.h
@@ -183,6 +183,8 @@ union vnt_tx_data_head {
 	/* cts g */
 	struct vnt_cts cts_g;
 	struct vnt_cts_fb cts_g_fb;
+	/* no rts/cts */
+	struct vnt_tx_datahead_a_fb data_head_a_fb;
 };
 
 struct vnt_tx_mic_hdr {
-- 
cgit 


From 5634a5ab6a5e530a3481846aae167a6649b3853f Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Tue, 1 Oct 2013 16:00:20 +0100
Subject: staging: vt6656: rxtx.c parse out vnt_rxtx_datahead_ab

Parse struct vnt_tx_datahead_ab from s_uFillDataHead and
move to struct vnt_rts_ab structure returning duration down
functions.

Both are returned in s_uFillDataHead at this stage as pvTxDataHd
is only null in s_bPacketToWirelessUsb.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/rxtx.c | 53 +++++++++++++++++++++----------------------
 drivers/staging/vt6656/rxtx.h |  1 +
 2 files changed, 27 insertions(+), 27 deletions(-)

diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index 5344009f1edd..190c91c43f84 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -571,6 +571,20 @@ static u16 vnt_rxtx_datahead_a_fb(struct vnt_private *priv, u8 pkt_type,
 	return buf->wDuration;
 }
 
+static u16 vnt_rxtx_datahead_ab(struct vnt_private *priv, u8 pkt_type,
+		u16 rate, struct vnt_tx_datahead_ab *buf,
+		u32 frame_len, int need_ack)
+{
+	/* Get SignalField,ServiceField,Length */
+	BBvCalculateParameter(priv, frame_len, rate, pkt_type, &buf->ab);
+	/* Get Duration and TimeStampOff */
+	buf->wDuration = s_uGetDataDuration(priv, pkt_type, need_ack);
+
+	buf->wTimeStampOff = vnt_time_stamp_off(priv, rate);
+
+	return buf->wDuration;
+}
+
 static u32 s_uFillDataHead(struct vnt_private *pDevice,
 	u8 byPktType, u16 wCurrentRate, void *pTxDataHead, u32 cbFrameLength,
 	u32 uDMAIdx, int bNeedAck, u8 byFBOption)
@@ -583,28 +597,16 @@ static u32 s_uFillDataHead(struct vnt_private *pDevice,
     if (byPktType == PK_TYPE_11A) {
 		struct vnt_tx_datahead_ab *pBuf =
 			(struct vnt_tx_datahead_ab *)pTxDataHead;
-            //Get SignalField,ServiceField,Length
-		BBvCalculateParameter(pDevice, cbFrameLength, wCurrentRate,
-			byPktType, &pBuf->ab);
-            //Get Duration and TimeStampOff
-		pBuf->wDuration = s_uGetDataDuration(pDevice,
-				byPktType, bNeedAck);
-		pBuf->wTimeStampOff = vnt_time_stamp_off(pDevice,
-								wCurrentRate);
-            return (pBuf->wDuration);
+
+		return vnt_rxtx_datahead_ab(pDevice, byPktType,	wCurrentRate,
+				pBuf, cbFrameLength, bNeedAck);
     }
     else if (byPktType == PK_TYPE_11B) {
 		struct vnt_tx_datahead_ab *pBuf =
 			(struct vnt_tx_datahead_ab *)pTxDataHead;
-            //Get SignalField,ServiceField,Length
-		BBvCalculateParameter(pDevice, cbFrameLength, wCurrentRate,
-			byPktType, &pBuf->ab);
-            //Get Duration and TimeStampOff
-		pBuf->wDuration = s_uGetDataDuration(pDevice,
-				byPktType, bNeedAck);
-		pBuf->wTimeStampOff = vnt_time_stamp_off(pDevice,
-								wCurrentRate);
-            return (pBuf->wDuration);
+
+		return vnt_rxtx_datahead_ab(pDevice, byPktType,	wCurrentRate,
+				pBuf, cbFrameLength, bNeedAck);
     }
     return 0;
 }
@@ -705,7 +707,8 @@ static u16 vnt_rxtx_rts_ab_head(struct vnt_private *priv,
 
 	vnt_fill_ieee80211_rts(priv, &buf->data, eth_hdr, buf->wDuration);
 
-	return 0;
+	return vnt_rxtx_datahead_ab(priv, pkt_type, current_rate,
+			&buf->data_head, frame_len, need_ack);
 }
 
 static u16 vnt_rxtx_rts_a_fb_head(struct vnt_private *priv,
@@ -766,7 +769,7 @@ static u16 s_vFillRTSHead(struct vnt_private *pDevice, u8 byPktType,
 			break;
 		}
 	case PK_TYPE_11B:
-		vnt_rxtx_rts_ab_head(pDevice, &head->rts_ab,
+		return vnt_rxtx_rts_ab_head(pDevice, &head->rts_ab,
 			psEthHeader, byPktType, cbFrameLength,
 			bNeedAck, wCurrentRate, byFBOption);
 	}
@@ -949,7 +952,7 @@ static u16 s_vGenerateTxParameter(struct vnt_private *pDevice,
 				cbFrameSize, wCurrentRate, bNeedACK);
 
 		/* Fill RTS */
-		s_vFillRTSHead(pDevice, byPktType, head, cbFrameSize,
+		return s_vFillRTSHead(pDevice, byPktType, head, cbFrameSize,
 			bNeedACK, psEthHeader, wCurrentRate, byFBOption);
 	} else {
             //Fill RsvTime
@@ -980,7 +983,7 @@ static u16 s_vGenerateTxParameter(struct vnt_private *pDevice,
 		}
 
 		/* Fill RTS */
-		s_vFillRTSHead(pDevice, byPktType, head, cbFrameSize,
+		return s_vFillRTSHead(pDevice, byPktType, head, cbFrameSize,
 			bNeedACK, psEthHeader, wCurrentRate, byFBOption);
         }
         else { //RTS_needless, non PCF mode
@@ -1181,12 +1184,8 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
     else {//802.11a/b packet
         if (byFBOption == AUTO_FB_NONE) {
             if (bRTS == true) {//RTS_need
-		pvTxDataHd = (struct vnt_tx_datahead_ab *)(pbyTxBufferAddr +
-			wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR +
-						sizeof(struct vnt_rts_ab));
 		cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
-			cbMICHDR + sizeof(struct vnt_rts_ab) +
-				sizeof(struct vnt_tx_datahead_ab);
+			cbMICHDR + sizeof(struct vnt_rts_ab);
             }
             else if (bRTS == false) { //RTS_needless, no MICHDR
 		pvTxDataHd = (struct vnt_tx_datahead_ab *)(pbyTxBufferAddr +
diff --git a/drivers/staging/vt6656/rxtx.h b/drivers/staging/vt6656/rxtx.h
index d8f25d19030c..d905b972360c 100644
--- a/drivers/staging/vt6656/rxtx.h
+++ b/drivers/staging/vt6656/rxtx.h
@@ -140,6 +140,7 @@ struct vnt_rts_ab {
 	u16 wDuration;
 	u16 wReserved;
 	struct ieee80211_rts data;
+	struct vnt_tx_datahead_ab data_head;
 } __packed;
 
 struct vnt_rts_a_fb {
-- 
cgit 


From c12dca094610c5959345b3c1087f767a22965a41 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Tue, 1 Oct 2013 16:03:40 +0100
Subject: staging: vt6656: rxtx.c add no rts struct vnt_tx_datahead_ab

Add no rts/cts vnt_tx_datahead_ab to union vnt_tx_data_head.

The need_mic now applies to all modes of packet type PK_TYPE_11B.

and return vnt_rxtx_datahead_ab in s_vGenerateTxParameter

This removes pvTxDataHd pointer assignment and calls to s_uFillDataHead.

Since pvTxDataHd is now null a small vendor hack to vDMA0_tx_80211/csMgmt_xmit
to do with Disassociation-packet is also changed correct head position.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/rxtx.c | 44 +++++++++++++++++--------------------------
 drivers/staging/vt6656/rxtx.h |  1 +
 2 files changed, 18 insertions(+), 27 deletions(-)

diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index 190c91c43f84..5ca37cf35958 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -966,6 +966,13 @@ static u16 s_vGenerateTxParameter(struct vnt_private *pDevice,
         }
     }
     else if (byPktType == PK_TYPE_11B) {
+	if (need_mic) {
+		*mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
+		head = &tx_buffer->tx_head.tx_ab.tx.mic.head;
+	} else {
+		head = &tx_buffer->tx_head.tx_ab.tx.head;
+	}
+
 	if (need_rts) {
             //Fill RsvTime
 		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.tx_ab.ab;
@@ -975,13 +982,6 @@ static u16 s_vGenerateTxParameter(struct vnt_private *pDevice,
 		pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B,
 				cbFrameSize, wCurrentRate, bNeedACK);
 
-		if (need_mic) {
-			*mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
-			head = &tx_buffer->tx_head.tx_ab.tx.mic.head;
-		} else {
-			head = &tx_buffer->tx_head.tx_ab.tx.head;
-		}
-
 		/* Fill RTS */
 		return s_vFillRTSHead(pDevice, byPktType, head, cbFrameSize,
 			bNeedACK, psEthHeader, wCurrentRate, byFBOption);
@@ -990,11 +990,11 @@ static u16 s_vGenerateTxParameter(struct vnt_private *pDevice,
             //Fill RsvTime
 		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.tx_ab.ab;
 
-		if (need_mic)
-			*mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
-
 		pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B,
 			cbFrameSize, wCurrentRate, bNeedACK);
+
+		return vnt_rxtx_datahead_ab(pDevice, byPktType, wCurrentRate,
+			&head->data_head_ab, cbFrameSize, bNeedACK);
         }
     }
     //DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"s_vGenerateTxParameter END.\n");
@@ -1188,8 +1188,6 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 			cbMICHDR + sizeof(struct vnt_rts_ab);
             }
             else if (bRTS == false) { //RTS_needless, no MICHDR
-		pvTxDataHd = (struct vnt_tx_datahead_ab *)(pbyTxBufferAddr +
-			wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
 		cbHeaderLength = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
 				cbMICHDR + sizeof(struct vnt_tx_datahead_ab);
             }
@@ -1222,10 +1220,7 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 	uDuration = s_vGenerateTxParameter(pDevice, byPktType, wCurrentRate,
 			tx_buffer, &pMICHDR, cbMICHDR,
 			cbFrameSize, bNeedACK, uDMAIdx, psEthHeader, bRTS);
-    //Fill DataHead
-	if (pvTxDataHd)
-    		uDuration |= s_uFillDataHead(pDevice, byPktType, wCurrentRate,
-		pvTxDataHd, cbFrameSize, uDMAIdx, bNeedACK, byFBOption);
+
     // Generate TX MAC Header
     s_vGenerateMACHeader(pDevice, pbyMacHdr, (u16)uDuration, psEthHeader, bNeedEncryption,
                            byFragType, uDMAIdx, 0);
@@ -1458,7 +1453,6 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
 	struct ieee80211_hdr *pMACHeader;
 	struct ethhdr sEthHeader;
 	u8 byPktType, *pbyTxBufferAddr;
-	void *pvTxDataHd;
 	struct vnt_mic_hdr *pMICHDR = NULL;
 	u32 uDuration, cbReqCount, cbHeaderSize, cbFrameBodySize, cbFrameSize;
 	int bNeedACK, bIsPSPOLL = false;
@@ -1595,8 +1589,6 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
 		sizeof(struct vnt_cts);
     }
     else { // 802.11a/b packet
-	pvTxDataHd = (struct vnt_tx_datahead_ab *) (pbyTxBufferAddr +
-		wTxBufSize + sizeof(struct vnt_rrv_time_ab));
 	cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_ab) +
 		sizeof(struct vnt_tx_datahead_ab);
     }
@@ -1617,10 +1609,6 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
 		pTX_Buffer, &pMICHDR, 0,
 		cbFrameSize, bNeedACK, TYPE_TXDMA0, &sEthHeader, false);
 
-    //Fill DataHead
-    uDuration |= s_uFillDataHead(pDevice, byPktType, wCurrentRate, pvTxDataHd,
-		cbFrameSize, TYPE_TXDMA0, bNeedACK, AUTO_FB_NONE);
-
     pMACHeader = (struct ieee80211_hdr *) (pbyTxBufferAddr + cbHeaderSize);
 
     cbReqCount = cbHeaderSize + cbMacHdLen + uPadding + cbIVlen + cbFrameBodySize;
@@ -1690,7 +1678,9 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
 		data_head->wDuration_b =
 			cpu_to_le16(pPacket->p80211Header->sA2.wDurationID);
 	} else {
-		((struct vnt_tx_datahead_ab *)pvTxDataHd)->wDuration =
+		struct vnt_tx_datahead_ab *data_head = &pTX_Buffer->tx_head.
+					tx_ab.tx.head.data_head_ab;
+		data_head->wDuration =
 			cpu_to_le16(pPacket->p80211Header->sA2.wDurationID);
 	}
     }
@@ -1999,8 +1989,6 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
 
     }
     else {//802.11a/b packet
-	pvTxDataHd = (struct vnt_tx_datahead_ab *)(pbyTxBufferAddr +
-		wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR);
 	cbHeaderSize = wTxBufSize + sizeof(struct vnt_rrv_time_ab) + cbMICHDR +
 					sizeof(struct vnt_tx_datahead_ab);
     }
@@ -2139,7 +2127,9 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
 		data_head->wDuration_b =
 			cpu_to_le16(p80211Header->sA2.wDurationID);
 	} else {
-		((struct vnt_tx_datahead_ab *)pvTxDataHd)->wDuration =
+		struct vnt_tx_datahead_ab *data_head = &pTX_Buffer->tx_head.
+					tx_ab.tx.head.data_head_ab;
+		data_head->wDuration =
 			cpu_to_le16(p80211Header->sA2.wDurationID);
 	}
     }
diff --git a/drivers/staging/vt6656/rxtx.h b/drivers/staging/vt6656/rxtx.h
index d905b972360c..eecbe890027e 100644
--- a/drivers/staging/vt6656/rxtx.h
+++ b/drivers/staging/vt6656/rxtx.h
@@ -186,6 +186,7 @@ union vnt_tx_data_head {
 	struct vnt_cts_fb cts_g_fb;
 	/* no rts/cts */
 	struct vnt_tx_datahead_a_fb data_head_a_fb;
+	struct vnt_tx_datahead_ab data_head_ab;
 };
 
 struct vnt_tx_mic_hdr {
-- 
cgit 


From c545e6a6f0b67853213224e9b9ba94203b6485d6 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Tue, 1 Oct 2013 16:07:25 +0100
Subject: staging: vt6656: rxtx.c remove dead code s_uFillDataHead/pvTxDataHd.

uFillDataHead in is now dead so remove and pvTxDataHd.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/rxtx.c | 42 +++---------------------------------------
 1 file changed, 3 insertions(+), 39 deletions(-)

diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index 5ca37cf35958..93eba18a1b99 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -103,10 +103,6 @@ static u16 s_vGenerateTxParameter(struct vnt_private *pDevice,
 	struct vnt_mic_hdr **mic_hdr, u32 need_mic, u32 cbFrameSize,
 	int bNeedACK, u32 uDMAIdx, struct ethhdr *psEthHeader, bool need_rts);
 
-static u32 s_uFillDataHead(struct vnt_private *pDevice,
-	u8 byPktType, u16 wCurrentRate, void *pTxDataHead, u32 cbFrameLength,
-	u32 uDMAIdx, int bNeedAck, u8 byFBOption);
-
 static void s_vGenerateMACHeader(struct vnt_private *pDevice,
 	u8 *pbyBufferAddr, u16 wDuration, struct ethhdr *psEthHeader,
 	int bNeedEncrypt, u16 wFragType, u32 uDMAIdx, u32 uFragIdx);
@@ -585,32 +581,6 @@ static u16 vnt_rxtx_datahead_ab(struct vnt_private *priv, u8 pkt_type,
 	return buf->wDuration;
 }
 
-static u32 s_uFillDataHead(struct vnt_private *pDevice,
-	u8 byPktType, u16 wCurrentRate, void *pTxDataHead, u32 cbFrameLength,
-	u32 uDMAIdx, int bNeedAck, u8 byFBOption)
-{
-
-    if (pTxDataHead == NULL) {
-        return 0;
-    }
-
-    if (byPktType == PK_TYPE_11A) {
-		struct vnt_tx_datahead_ab *pBuf =
-			(struct vnt_tx_datahead_ab *)pTxDataHead;
-
-		return vnt_rxtx_datahead_ab(pDevice, byPktType,	wCurrentRate,
-				pBuf, cbFrameLength, bNeedAck);
-    }
-    else if (byPktType == PK_TYPE_11B) {
-		struct vnt_tx_datahead_ab *pBuf =
-			(struct vnt_tx_datahead_ab *)pTxDataHead;
-
-		return vnt_rxtx_datahead_ab(pDevice, byPktType,	wCurrentRate,
-				pBuf, cbFrameLength, bNeedAck);
-    }
-    return 0;
-}
-
 static int vnt_fill_ieee80211_rts(struct vnt_private *priv,
 	struct ieee80211_rts *rts, struct ethhdr *eth_hdr,
 		u16 duration)
@@ -1028,14 +998,13 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 	u32 uDuration;
 	u32 cbHeaderLength = 0, uPadding = 0;
 	struct vnt_mic_hdr *pMICHDR;
-	void *pvTxDataHd;
 	u8 byFBOption = AUTO_FB_NONE, byFragType;
 	u16 wTxBufSize;
 	u32 dwMICKey0, dwMICKey1, dwMIC_Priority;
 	u32 *pdwMIC_L, *pdwMIC_R;
 	int bSoftWEP = false;
 
-	pMICHDR = pvTxDataHd = NULL;
+	pMICHDR = NULL;
 
 	if (bNeedEncryption && pTransmitKey->pvKeyTable) {
 		if (((PSKeyTable)pTransmitKey->pvKeyTable)->bSoftWEP == true)
@@ -1799,7 +1768,6 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
 	struct vnt_tx_fifo_head *pTxBufHead;
 	u8 byPktType;
 	u8 *pbyTxBufferAddr;
-	void *pvTxDataHd;
 	u32 uDuration, cbReqCount;
 	struct ieee80211_hdr *pMACHeader;
 	u32 cbHeaderSize, cbFrameBodySize;
@@ -1825,7 +1793,7 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
 	u32 cbExtSuppRate = 0;
 	struct vnt_usb_send_context *pContext;
 
-	pMICHDR = pvTxDataHd = NULL;
+	pMICHDR = NULL;
 
     if(skb->len <= WLAN_HDR_ADDR3_LEN) {
        cbFrameBodySize = 0;
@@ -2008,11 +1976,7 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
 		pTX_Buffer, &pMICHDR, cbMICHDR,
 		cbFrameSize, bNeedACK, TYPE_TXDMA0, &sEthHeader, false);
 
-    //Fill DataHead
-    uDuration |= s_uFillDataHead(pDevice, byPktType, wCurrentRate, pvTxDataHd,
-		cbFrameSize, TYPE_TXDMA0, bNeedACK, AUTO_FB_NONE);
-
-    pMACHeader = (struct ieee80211_hdr *) (pbyTxBufferAddr + cbHeaderSize);
+	pMACHeader = (struct ieee80211_hdr *) (pbyTxBufferAddr + cbHeaderSize);
 
     cbReqCount = cbHeaderSize + cbMacHdLen + uPadding + cbIVlen + (cbFrameBodySize + cbMIClen) + cbExtSuppRate;
 
-- 
cgit 


From 274dede8c52036a1849ea970fab8d185fb0dce2b Mon Sep 17 00:00:00 2001
From: Xose Vazquez Perez <xose.vazquez@gmail.com>
Date: Sat, 28 Sep 2013 13:07:10 +0200
Subject: wireless: rt2x00: rt2800usb: add new devices

0411,0241  RT5572  BUFFALO WI-U2-300D Wireless LAN Adapter
0789,0170  RT3572  Logitec LAN-W300AN/U2
0846,9013  RT3573  NETGEAR Adaptador USB Inalambrico Movistar
0df6,006e  RT3573  Sitecom WiFi USB adapter N900
2001,3c1f  RT3573  D-Link DWA-162 Wireless N900 Dual Band Adapter
2001,3c20  RT5372  D-Link DWA-140 Wireless N USB Adapter(rev.D)
2001,3c21  RT5572  D-Link DWA-160 Xtreme N Dual Band USB Adapter(rev.C)
2001,3c22  RT5372  D-Link DWA-132 Wireless N USB Adapter(rev.B)
2001,3c23  RT5372  D-Link GO-USB-N300 Wireless N Easy USB Adapter
2019,ab29  ?       Planex GW-USMirco300
20f4,724a  RT5572  TRENDnet N600 Wireless Dual Band USB Adapter

Cc: Ivo van Doorn <IvDoorn@gmail.com>
Cc: Gertjan van Wingerde <gwingerde@gmail.com>
Cc: Helmut Schaa <helmut.schaa@googlemail.com>
Cc: John W. Linville <linville@tuxdriver.com>
Cc: users@rt2x00.serialmonkey.com
Cc: linux-wireless@vger.kernel.org
Signed-off-by: Xose Vazquez Perez <xose.vazquez@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800usb.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index 96961b9a395c..96677ce55da4 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -1176,6 +1176,8 @@ static struct usb_device_id rt2800usb_device_table[] = {
 	/* Linksys */
 	{ USB_DEVICE(0x13b1, 0x002f) },
 	{ USB_DEVICE(0x1737, 0x0079) },
+	/* Logitec */
+	{ USB_DEVICE(0x0789, 0x0170) },
 	/* Ralink */
 	{ USB_DEVICE(0x148f, 0x3572) },
 	/* Sitecom */
@@ -1199,6 +1201,8 @@ static struct usb_device_id rt2800usb_device_table[] = {
 	{ USB_DEVICE(0x050d, 0x1103) },
 	/* Cameo */
 	{ USB_DEVICE(0x148f, 0xf301) },
+	/* D-Link */
+	{ USB_DEVICE(0x2001, 0x3c1f) },
 	/* Edimax */
 	{ USB_DEVICE(0x7392, 0x7733) },
 	/* Hawking */
@@ -1212,6 +1216,7 @@ static struct usb_device_id rt2800usb_device_table[] = {
 	{ USB_DEVICE(0x0789, 0x016b) },
 	/* NETGEAR */
 	{ USB_DEVICE(0x0846, 0x9012) },
+	{ USB_DEVICE(0x0846, 0x9013) },
 	{ USB_DEVICE(0x0846, 0x9019) },
 	/* Planex */
 	{ USB_DEVICE(0x2019, 0xed19) },
@@ -1220,6 +1225,7 @@ static struct usb_device_id rt2800usb_device_table[] = {
 	/* Sitecom */
 	{ USB_DEVICE(0x0df6, 0x0067) },
 	{ USB_DEVICE(0x0df6, 0x006a) },
+	{ USB_DEVICE(0x0df6, 0x006e) },
 	/* ZyXEL */
 	{ USB_DEVICE(0x0586, 0x3421) },
 #endif
@@ -1236,6 +1242,9 @@ static struct usb_device_id rt2800usb_device_table[] = {
 	{ USB_DEVICE(0x2001, 0x3c1c) },
 	{ USB_DEVICE(0x2001, 0x3c1d) },
 	{ USB_DEVICE(0x2001, 0x3c1e) },
+	{ USB_DEVICE(0x2001, 0x3c20) },
+	{ USB_DEVICE(0x2001, 0x3c22) },
+	{ USB_DEVICE(0x2001, 0x3c23) },
 	/* LG innotek */
 	{ USB_DEVICE(0x043e, 0x7a22) },
 	{ USB_DEVICE(0x043e, 0x7a42) },
@@ -1258,12 +1267,17 @@ static struct usb_device_id rt2800usb_device_table[] = {
 	{ USB_DEVICE(0x043e, 0x7a32) },
 	/* AVM GmbH */
 	{ USB_DEVICE(0x057c, 0x8501) },
-	/* D-Link DWA-160-B2 */
+	/* Buffalo */
+	{ USB_DEVICE(0x0411, 0x0241) },
+	/* D-Link */
 	{ USB_DEVICE(0x2001, 0x3c1a) },
+	{ USB_DEVICE(0x2001, 0x3c21) },
 	/* Proware */
 	{ USB_DEVICE(0x043e, 0x7a13) },
 	/* Ralink */
 	{ USB_DEVICE(0x148f, 0x5572) },
+	/* TRENDnet */
+	{ USB_DEVICE(0x20f4, 0x724a) },
 #endif
 #ifdef CONFIG_RT2800USB_UNKNOWN
 	/*
@@ -1333,6 +1347,7 @@ static struct usb_device_id rt2800usb_device_table[] = {
 	{ USB_DEVICE(0x1d4d, 0x0010) },
 	/* Planex */
 	{ USB_DEVICE(0x2019, 0xab24) },
+	{ USB_DEVICE(0x2019, 0xab29) },
 	/* Qcom */
 	{ USB_DEVICE(0x18e8, 0x6259) },
 	/* RadioShack */
-- 
cgit 


From 40dc9ab277eb3d2d3d3442c20accb5dfa577e680 Mon Sep 17 00:00:00 2001
From: Andrea Merello <andrea.merello@gmail.com>
Date: Thu, 3 Oct 2013 21:18:37 +0200
Subject: atl1e: enable support for NETIF_F_RXALL and NETIF_F_RXCRC features

This patch allows (optionally, via ethtool) the atl1e NIC to:
- Receive bad frames (runt, bad-fcs, etc..)
- Receive full frames without stripping the FCS.

This has been tested on my board by injecting runt and bad-fcs
frames with a FPGA-based device.

The particular scenario of receiving very short frames (<4 bytes)
without passing FCS to the upper layer has been also tested:
This could be potentially dangerous because the driver performs a
4 byte subtraction on the frame length, but I finally have NOT
added anything to avoid this because it seems the NIC always
discards frames so much short..
If someone still have some reason to worry about this, please
tell me.. I will add an explicit SW check..

Signed-off-by: Andrea Merello <andrea.merello@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/atheros/atl1e/atl1e_main.c | 46 ++++++++++++++++++++++---
 1 file changed, 42 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
index 1966444590f6..7a73f3a9fcb5 100644
--- a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
+++ b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
@@ -313,6 +313,34 @@ static void atl1e_set_multi(struct net_device *netdev)
 	}
 }
 
+static void __atl1e_rx_mode(netdev_features_t features, u32 *mac_ctrl_data)
+{
+
+	if (features & NETIF_F_RXALL) {
+		/* enable RX of ALL frames */
+		*mac_ctrl_data |= MAC_CTRL_DBG;
+	} else {
+		/* disable RX of ALL frames */
+		*mac_ctrl_data &= ~MAC_CTRL_DBG;
+	}
+}
+
+static void atl1e_rx_mode(struct net_device *netdev,
+	netdev_features_t features)
+{
+	struct atl1e_adapter *adapter = netdev_priv(netdev);
+	u32 mac_ctrl_data = 0;
+
+	netdev_dbg(adapter->netdev, "%s\n", __func__);
+
+	atl1e_irq_disable(adapter);
+	mac_ctrl_data = AT_READ_REG(&adapter->hw, REG_MAC_CTRL);
+	__atl1e_rx_mode(features, &mac_ctrl_data);
+	AT_WRITE_REG(&adapter->hw, REG_MAC_CTRL, mac_ctrl_data);
+	atl1e_irq_enable(adapter);
+}
+
+
 static void __atl1e_vlan_mode(netdev_features_t features, u32 *mac_ctrl_data)
 {
 	if (features & NETIF_F_HW_VLAN_CTAG_RX) {
@@ -394,6 +422,10 @@ static int atl1e_set_features(struct net_device *netdev,
 	if (changed & NETIF_F_HW_VLAN_CTAG_RX)
 		atl1e_vlan_mode(netdev, features);
 
+	if (changed & NETIF_F_RXALL)
+		atl1e_rx_mode(netdev, features);
+
+
 	return 0;
 }
 
@@ -1057,7 +1089,8 @@ static void atl1e_setup_mac_ctrl(struct atl1e_adapter *adapter)
 		value |= MAC_CTRL_PROMIS_EN;
 	if (netdev->flags & IFF_ALLMULTI)
 		value |= MAC_CTRL_MC_ALL_EN;
-
+	if (netdev->features & NETIF_F_RXALL)
+		value |= MAC_CTRL_DBG;
 	AT_WRITE_REG(hw, REG_MAC_CTRL, value);
 }
 
@@ -1405,7 +1438,8 @@ static void atl1e_clean_rx_irq(struct atl1e_adapter *adapter, u8 que,
 			rx_page_desc[que].rx_nxseq++;
 
 			/* error packet */
-			if (prrs->pkt_flag & RRS_IS_ERR_FRAME) {
+			if ((prrs->pkt_flag & RRS_IS_ERR_FRAME) &&
+			    !(netdev->features & NETIF_F_RXALL)) {
 				if (prrs->err_flag & (RRS_ERR_BAD_CRC |
 					RRS_ERR_DRIBBLE | RRS_ERR_CODE |
 					RRS_ERR_TRUNC)) {
@@ -1418,7 +1452,10 @@ static void atl1e_clean_rx_irq(struct atl1e_adapter *adapter, u8 que,
 			}
 
 			packet_size = ((prrs->word1 >> RRS_PKT_SIZE_SHIFT) &
-					RRS_PKT_SIZE_MASK) - 4; /* CRC */
+					RRS_PKT_SIZE_MASK);
+			if (likely(!(netdev->features & NETIF_F_RXFCS)))
+				packet_size -= 4; /* CRC */
+
 			skb = netdev_alloc_skb_ip_align(netdev, packet_size);
 			if (skb == NULL)
 				goto skip_pkt;
@@ -2245,7 +2282,8 @@ static int atl1e_init_netdev(struct net_device *netdev, struct pci_dev *pdev)
 			      NETIF_F_HW_VLAN_CTAG_RX;
 	netdev->features = netdev->hw_features | NETIF_F_LLTX |
 			   NETIF_F_HW_VLAN_CTAG_TX;
-
+	/* not enabled by default */
+	netdev->hw_features |= NETIF_F_RXALL | NETIF_F_RXFCS;
 	return 0;
 }
 
-- 
cgit 


From 6a6116c282ecf6918b39da89758c4bcd648443ad Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 17:49:36 -0700
Subject: staging: comedi: ni_at_ao: remove ATAO_SIZE define

This define is only used during the board attach to specify the
I/O region length. Remove the define and just open code the value.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_ao.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index 3545d294c4ae..d349b1f4dff1 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -42,8 +42,6 @@ Configuration options:
 /* board egisters */
 /* registers with _2_ are accessed when GRP2WR is set in CFG1 */
 
-#define ATAO_SIZE 0x20
-
 #define ATAO_2_DMATCCLR		0x00	/* W 16 */
 #define ATAO_DIN		0x00	/* R 16 */
 #define ATAO_DOUT		0x00	/* W 16 */
@@ -327,7 +325,7 @@ static int atao_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	ao_unipolar = it->options[3];
 
-	ret = comedi_request_region(dev, it->options[0], ATAO_SIZE);
+	ret = comedi_request_region(dev, it->options[0], 0x20);
 	if (ret)
 		return ret;
 
-- 
cgit 


From b72116bb485f7b6cd6cbb4536f848c22b98d42de Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 17:50:09 -0700
Subject: staging: comedi: ni_at_ao: tidy up the register map defines

For aesthetics, sort the register map defines so the normal registers
are listed first and then alternate registers (when the GRP2WR bit is
set).

Convert the register bit defines into bit shifts to make them clear.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_ao.c | 161 ++++++++++++++----------------
 1 file changed, 77 insertions(+), 84 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index d349b1f4dff1..b7d31f7144f2 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -39,105 +39,98 @@ Configuration options:
 #include <linux/module.h>
 #include "../comedidev.h"
 
-/* board egisters */
-/* registers with _2_ are accessed when GRP2WR is set in CFG1 */
-
-#define ATAO_2_DMATCCLR		0x00	/* W 16 */
+/*
+ * Register map
+ */
 #define ATAO_DIN		0x00	/* R 16 */
 #define ATAO_DOUT		0x00	/* W 16 */
-
 #define ATAO_CFG2		0x02	/* W 16 */
-#define CALLD1	0x8000
-#define CALLD0	0x4000
-#define FFRTEN	0x2000
-#define DAC2S8	0x1000
-#define DAC2S6	0x0800
-#define DAC2S4	0x0400
-#define DAC2S2	0x0200
-#define DAC2S0	0x0100
-#define LDAC8		0x0080
-#define LDAC6		0x0040
-#define LDAC4		0x0020
-#define LDAC2		0x0010
-#define LDAC0		0x0008
-#define PROMEN	0x0004
-#define SCLK		0x0002
-#define SDATA		0x0001
-
-#define ATAO_2_INT1CLR		0x02	/* W 16 */
-
+#define CALLD1			(1 << 15)
+#define CALLD0			(1 << 14)
+#define FFRTEN			(1 << 13)
+#define DAC2S8			(1 << 12)
+#define DAC2S6			(1 << 11)
+#define DAC2S4			(1 << 10)
+#define DAC2S2			(1 << 9)
+#define DAC2S0			(1 << 8)
+#define LDAC8			(1 << 7)
+#define LDAC6			(1 << 6)
+#define LDAC4			(1 << 5)
+#define LDAC2			(1 << 4)
+#define LDAC0			(1 << 3)
+#define PROMEN			(1 << 2)
+#define SCLK			(1 << 1)
+#define SDATA			(1 << 0)
 #define ATAO_CFG3		0x04	/* W 16 */
-#define DMAMODE	0x0040
-#define CLKOUT	0x0020
-#define RCLKEN	0x0010
-#define DOUTEN2	0x0008
-#define DOUTEN1	0x0004
-#define EN2_5V	0x0002
-#define SCANEN	0x0001
-
-#define ATAO_2_INT2CLR		0x04	/* W 16 */
-
+#define DMAMODE			(1 << 6)
+#define CLKOUT			(1 << 5)
+#define RCLKEN			(1 << 4)
+#define DOUTEN2			(1 << 3)
+#define DOUTEN1			(1 << 2)
+#define EN2_5V			(1 << 1)
+#define SCANEN			(1 << 0)
 #define ATAO_82C53_BASE		0x06	/* RW 8 */
-
 #define ATAO_82C53_CNTR1	0x06	/* RW 8 */
 #define ATAO_82C53_CNTR2	0x07	/* RW 8 */
 #define ATAO_82C53_CNTR3	0x08	/* RW 8 */
 #define ATAO_82C53_CNTRCMD	0x09	/* W 8 */
-#define CNTRSEL1	0x80
-#define CNTRSEL0	0x40
-#define RWSEL1	0x20
-#define RWSEL0	0x10
-#define MODESEL2	0x08
-#define MODESEL1	0x04
-#define MODESEL0	0x02
-#define BCDSEL	0x01
+#define CNTRSEL1		(1 << 7)
+#define CNTRSEL0		(1 << 6)
+#define RWSEL1			(1 << 5)
+#define RWSEL0			(1 << 4)
+#define MODESEL2		(1 << 3)
+#define MODESEL1		(1 << 2)
+#define MODESEL0		(1 << 1)
+#define BCDSEL			(1 << 0)
   /* read-back command */
-#define COUNT		0x20
-#define STATUS	0x10
-#define CNTR3		0x08
-#define CNTR2		0x04
-#define CNTR1		0x02
+#define COUNT			(1 << 5)
+#define STATUS			(1 << 4)
+#define CNTR3			(1 << 3)
+#define CNTR2			(1 << 2)
+#define CNTR1			(1 << 1)
   /* status */
-#define OUT		0x80
-#define _NULL		0x40
-#define RW1		0x20
-#define RW0		0x10
-#define MODE2		0x08
-#define MODE1		0x04
-#define MODE0		0x02
-#define BCD		0x01
-
-#define ATAO_2_RTSISHFT		0x06	/* W 8 */
-#define ATAO_RTSISHFT_RSI	(1 << 0)
-
-#define ATAO_2_RTSISTRB		0x07	/* W 8 */
-
+#define OUT			(1 << 7)
+#define _NULL			(1 << 6)
+#define RW1			(1 << 5)
+#define RW0			(1 << 4)
+#define MODE2			(1 << 3)
+#define MODE1			(1 << 2)
+#define MODE0			(1 << 1)
+#define BCD			(1 << 0)
 #define ATAO_CFG1		0x0a	/* W 16 */
-#define EXTINT2EN	0x8000
-#define EXTINT1EN	0x4000
-#define CNTINT2EN	0x2000
-#define CNTINT1EN	0x1000
-#define TCINTEN	0x0800
-#define CNT1SRC	0x0400
-#define CNT2SRC	0x0200
-#define FIFOEN	0x0100
-#define GRP2WR	0x0080
-#define EXTUPDEN	0x0040
-#define DMARQ		0x0020
-#define DMAEN		0x0010
-#define CH_mask	0x000f
+#define EXTINT2EN		(1 << 15)
+#define EXTINT1EN		(1 << 14)
+#define CNTINT2EN		(1 << 13)
+#define CNTINT1EN		(1 << 12)
+#define TCINTEN			(1 << 11)
+#define CNT1SRC			(1 << 10)
+#define CNT2SRC			(1 << 9)
+#define FIFOEN			(1 << 8)
+#define GRP2WR			(1 << 7)
+#define EXTUPDEN		(1 << 6)
+#define DMARQ			(1 << 5)
+#define DMAEN			(1 << 4)
+#define CH_mask			(0xf << 0)
 #define ATAO_STATUS		0x0a	/* R 16 */
-#define FH		0x0040
-#define FE		0x0020
-#define FF		0x0010
-#define INT2		0x0008
-#define INT1		0x0004
-#define TCINT		0x0002
-#define PROMOUT	0x0001
-
+#define FH			(1 << 6)
+#define FE			(1 << 5)
+#define FF			(1 << 4)
+#define INT2			(1 << 3)
+#define INT1			(1 << 2)
+#define TCINT			(1 << 1)
+#define PROMOUT			(1 << 0)
 #define ATAO_FIFO_WRITE		0x0c	/* W 16 */
 #define ATAO_FIFO_CLEAR		0x0c	/* R 16 */
-#define ATAO_DACn(x)		(0x0c + 2*(x))	/* W */
+#define ATAO_DACn(x)		(0x0c + ((x) * 2))	/* W */
+
+/* registers with _2_ are accessed when GRP2WR is set in CFG1 */
+
+#define ATAO_2_DMATCCLR		0x00	/* W 16 */
+#define ATAO_2_INT1CLR		0x02	/* W 16 */
+#define ATAO_2_INT2CLR		0x04	/* W 16 */
+#define ATAO_2_RTSISHFT		0x06	/* W 8 */
+#define ATAO_RTSISHFT_RSI	(1 << 0)
+#define ATAO_2_RTSISTRB		0x07	/* W 8 */
 
 /*
  * Board descriptions for two imaginary boards.  Describing the
-- 
cgit 


From 0960777727ea2e4e01886ea054cc9fe1ad174a26 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 17:50:30 -0700
Subject: staging: comedi: ni_at_ao: tidy up digital i/o register defines

The digital in and digital out registers on this board share the same
address. They also effect the same digital i/o pins. To make this clear
combine the two defines.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_ao.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index b7d31f7144f2..b10cb463ae4f 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -42,8 +42,7 @@ Configuration options:
 /*
  * Register map
  */
-#define ATAO_DIN		0x00	/* R 16 */
-#define ATAO_DOUT		0x00	/* W 16 */
+#define ATAO_DIO_REG		0x00
 #define ATAO_CFG2		0x02	/* W 16 */
 #define CALLD1			(1 << 15)
 #define CALLD0			(1 << 14)
@@ -228,9 +227,9 @@ static int atao_dio_insn_bits(struct comedi_device *dev,
 			      unsigned int *data)
 {
 	if (comedi_dio_update_state(s, data))
-		outw(s->state, dev->iobase + ATAO_DOUT);
+		outw(s->state, dev->iobase + ATAO_DIO_REG);
 
-	data[1] = inw(dev->iobase + ATAO_DIN);
+	data[1] = inw(dev->iobase + ATAO_DIO_REG);
 
 	return insn->n;
 }
-- 
cgit 


From c8d348d4272b6638a9ec2dce14e182c1a3699afd Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 17:50:49 -0700
Subject: staging: comedi: ni_at_ao: tidy up CFG1 register defines

Rename the defines for the CFG1 register so they have namespace
associated with the driver.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_ao.c | 46 +++++++++++++++----------------
 1 file changed, 23 insertions(+), 23 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index b10cb463ae4f..1b87e8ce6346 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -96,20 +96,20 @@ Configuration options:
 #define MODE1			(1 << 2)
 #define MODE0			(1 << 1)
 #define BCD			(1 << 0)
-#define ATAO_CFG1		0x0a	/* W 16 */
-#define EXTINT2EN		(1 << 15)
-#define EXTINT1EN		(1 << 14)
-#define CNTINT2EN		(1 << 13)
-#define CNTINT1EN		(1 << 12)
-#define TCINTEN			(1 << 11)
-#define CNT1SRC			(1 << 10)
-#define CNT2SRC			(1 << 9)
-#define FIFOEN			(1 << 8)
-#define GRP2WR			(1 << 7)
-#define EXTUPDEN		(1 << 6)
-#define DMARQ			(1 << 5)
-#define DMAEN			(1 << 4)
-#define CH_mask			(0xf << 0)
+#define ATAO_CFG1_REG		0x0a
+#define ATAO_CFG1_EXTINT2EN	(1 << 15)
+#define ATAO_CFG1_EXTINT1EN	(1 << 14)
+#define ATAO_CFG1_CNTINT2EN	(1 << 13)
+#define ATAO_CFG1_CNTINT1EN	(1 << 12)
+#define ATAO_CFG1_TCINTEN	(1 << 11)
+#define ATAO_CFG1_CNT1SRC	(1 << 10)
+#define ATAO_CFG1_CNT2SRC	(1 << 9)
+#define ATAO_CFG1_FIFOEN	(1 << 8)
+#define ATAO_CFG1_GRP2WR	(1 << 7)
+#define ATAO_CFG1_EXTUPDEN	(1 << 6)
+#define ATAO_CFG1_DMARQ		(1 << 5)
+#define ATAO_CFG1_DMAEN		(1 << 4)
+#define ATAO_CFG1_CH(x)		(((x) & 0xf) << 0)
 #define ATAO_STATUS		0x0a	/* R 16 */
 #define FH			(1 << 6)
 #define FE			(1 << 5)
@@ -158,7 +158,7 @@ static void atao_reset(struct comedi_device *dev)
 	/* This is the reset sequence described in the manual */
 
 	devpriv->cfg1 = 0;
-	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1);
+	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
 
 	outb(RWSEL0 | MODESEL2, dev->iobase + ATAO_82C53_CNTRCMD);
 	outb(0x03, dev->iobase + ATAO_82C53_CNTR1);
@@ -172,15 +172,15 @@ static void atao_reset(struct comedi_device *dev)
 
 	inw(dev->iobase + ATAO_FIFO_CLEAR);
 
-	devpriv->cfg1 |= GRP2WR;
-	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1);
+	devpriv->cfg1 |= ATAO_CFG1_GRP2WR;
+	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
 
 	outw(0, dev->iobase + ATAO_2_INT1CLR);
 	outw(0, dev->iobase + ATAO_2_INT2CLR);
 	outw(0, dev->iobase + ATAO_2_DMATCCLR);
 
-	devpriv->cfg1 &= ~GRP2WR;
-	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1);
+	devpriv->cfg1 &= ~ATAO_CFG1_GRP2WR;
+	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
 }
 
 static int atao_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
@@ -194,13 +194,13 @@ static int atao_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
 	for (i = 0; i < insn->n; i++) {
 		bits = data[i] - 0x800;
 		if (chan == 0) {
-			devpriv->cfg1 |= GRP2WR;
-			outw(devpriv->cfg1, dev->iobase + ATAO_CFG1);
+			devpriv->cfg1 |= ATAO_CFG1_GRP2WR;
+			outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
 		}
 		outw(bits, dev->iobase + ATAO_DACn(chan));
 		if (chan == 0) {
-			devpriv->cfg1 &= ~GRP2WR;
-			outw(devpriv->cfg1, dev->iobase + ATAO_CFG1);
+			devpriv->cfg1 &= ~ATAO_CFG1_GRP2WR;
+			outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
 		}
 		devpriv->ao_readback[chan] = data[i];
 	}
-- 
cgit 


From 3390ed32aea828b1251ed8344b32eae28894d130 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 17:51:16 -0700
Subject: staging: comedi: ni_at_ao: tidy up the STATUS register defines

Rename the defines for the STATUS register so they have namespace
associated with the driver.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_ao.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index 1b87e8ce6346..62d4d858e041 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -110,14 +110,14 @@ Configuration options:
 #define ATAO_CFG1_DMARQ		(1 << 5)
 #define ATAO_CFG1_DMAEN		(1 << 4)
 #define ATAO_CFG1_CH(x)		(((x) & 0xf) << 0)
-#define ATAO_STATUS		0x0a	/* R 16 */
-#define FH			(1 << 6)
-#define FE			(1 << 5)
-#define FF			(1 << 4)
-#define INT2			(1 << 3)
-#define INT1			(1 << 2)
-#define TCINT			(1 << 1)
-#define PROMOUT			(1 << 0)
+#define ATAO_STATUS_REG		0x0a
+#define ATAO_STATUS_FH		(1 << 6)
+#define ATAO_STATUS_FE		(1 << 5)
+#define ATAO_STATUS_FF		(1 << 4)
+#define ATAO_STATUS_INT2	(1 << 3)
+#define ATAO_STATUS_INT1	(1 << 2)
+#define ATAO_STATUS_TCINT	(1 << 1)
+#define ATAO_STATUS_PROMOUT	(1 << 0)
 #define ATAO_FIFO_WRITE		0x0c	/* W 16 */
 #define ATAO_FIFO_CLEAR		0x0c	/* R 16 */
 #define ATAO_DACn(x)		(0x0c + ((x) * 2))	/* W */
-- 
cgit 


From 4fbb2e92ca663cabcc096e139bc8c58a1b971333 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 17:51:35 -0700
Subject: staging: comedi: ni_at_ao: remove 'cfg2' from private data

This member of the private data is initialized to '0' during the
board reset then never changed. Just remove it.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_ao.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index 62d4d858e041..bba5bc0c036b 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -142,9 +142,7 @@ struct atao_board {
 };
 
 struct atao_private {
-
 	unsigned short cfg1;
-	unsigned short cfg2;
 	unsigned short cfg3;
 
 	/* Used for AO readback */
@@ -164,8 +162,7 @@ static void atao_reset(struct comedi_device *dev)
 	outb(0x03, dev->iobase + ATAO_82C53_CNTR1);
 	outb(CNTRSEL0 | RWSEL0 | MODESEL2, dev->iobase + ATAO_82C53_CNTRCMD);
 
-	devpriv->cfg2 = 0;
-	outw(devpriv->cfg2, dev->iobase + ATAO_CFG2);
+	outw(0, dev->iobase + ATAO_CFG2);
 
 	devpriv->cfg3 = 0;
 	outw(devpriv->cfg3, dev->iobase + ATAO_CFG3);
@@ -294,15 +291,15 @@ static int atao_calib_insn_write(struct comedi_device *dev,
 	bitstring = ((chan & 0x7) << 8) | (data[insn->n - 1] & 0xff);
 
 	for (bit = 1 << (11 - 1); bit; bit >>= 1) {
-		outw(devpriv->cfg2 | ((bit & bitstring) ? SDATA : 0),
+		outw(((bit & bitstring) ? SDATA : 0),
 		     dev->iobase + ATAO_CFG2);
-		outw(devpriv->cfg2 | SCLK | ((bit & bitstring) ? SDATA : 0),
+		outw(SCLK | ((bit & bitstring) ? SDATA : 0),
 		     dev->iobase + ATAO_CFG2);
 	}
 	/* strobe the appropriate caldac */
-	outw(devpriv->cfg2 | (((chan >> 3) + 1) << 14),
+	outw((((chan >> 3) + 1) << 14),
 	     dev->iobase + ATAO_CFG2);
-	outw(devpriv->cfg2, dev->iobase + ATAO_CFG2);
+	outw(0, dev->iobase + ATAO_CFG2);
 
 	return insn->n;
 }
-- 
cgit 


From 12c15b195f3bef40db68ceb0f172905c5aa07524 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 17:51:54 -0700
Subject: staging: comedi: ni_at_ao: tidy up the calibration subdevice

The AT-AO-6/10 boards use DAC8800 TrimDACs to software calibrate the
analog output channels. These are exposed to the user as a calibration
subdevice.

Tidy up, and document, the calibration subdevice.

Since the TrimDACs are not readable, store the calibration values in the
private data for the user to read back as needed.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_ao.c | 139 +++++++++++++++++++-----------
 1 file changed, 88 insertions(+), 51 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index bba5bc0c036b..cbf2b0c40347 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -43,23 +43,15 @@ Configuration options:
  * Register map
  */
 #define ATAO_DIO_REG		0x00
-#define ATAO_CFG2		0x02	/* W 16 */
-#define CALLD1			(1 << 15)
-#define CALLD0			(1 << 14)
-#define FFRTEN			(1 << 13)
-#define DAC2S8			(1 << 12)
-#define DAC2S6			(1 << 11)
-#define DAC2S4			(1 << 10)
-#define DAC2S2			(1 << 9)
-#define DAC2S0			(1 << 8)
-#define LDAC8			(1 << 7)
-#define LDAC6			(1 << 6)
-#define LDAC4			(1 << 5)
-#define LDAC2			(1 << 4)
-#define LDAC0			(1 << 3)
-#define PROMEN			(1 << 2)
-#define SCLK			(1 << 1)
-#define SDATA			(1 << 0)
+#define ATAO_CFG2_REG		0x02
+#define ATAO_CFG2_CALLD_NOP	(0 << 14)
+#define ATAO_CFG2_CALLD(x)	((((x) >> 3) + 1) << 14)
+#define ATAO_CFG2_FFRTEN	(1 << 13)
+#define ATAO_CFG2_DACS(x)	(1 << (((x) / 2) + 8))
+#define ATAO_CFG2_LDAC(x)	(1 << (((x) / 2) + 3))
+#define ATAO_CFG2_PROMEN	(1 << 2)
+#define ATAO_CFG2_SCLK		(1 << 1)
+#define ATAO_CFG2_SDATA		(1 << 0)
 #define ATAO_CFG3		0x04	/* W 16 */
 #define DMAMODE			(1 << 6)
 #define CLKOUT			(1 << 5)
@@ -147,6 +139,9 @@ struct atao_private {
 
 	/* Used for AO readback */
 	unsigned int ao_readback[10];
+
+	/* Used for caldac readback */
+	unsigned char caldac[21];
 };
 
 static void atao_reset(struct comedi_device *dev)
@@ -162,7 +157,7 @@ static void atao_reset(struct comedi_device *dev)
 	outb(0x03, dev->iobase + ATAO_82C53_CNTR1);
 	outb(CNTRSEL0 | RWSEL0 | MODESEL2, dev->iobase + ATAO_82C53_CNTRCMD);
 
-	outw(0, dev->iobase + ATAO_CFG2);
+	outw(ATAO_CFG2_CALLD_NOP, dev->iobase + ATAO_CFG2_REG);
 
 	devpriv->cfg3 = 0;
 	outw(devpriv->cfg3, dev->iobase + ATAO_CFG3);
@@ -265,41 +260,83 @@ static int atao_dio_insn_config(struct comedi_device *dev,
 }
 
 /*
- * Figure 2-1 in the manual shows 3 chips labeled DAC8800, which
- * are 8-channel 8-bit DACs.  These are most likely the calibration
- * DACs.  It is not explicitly stated in the manual how to access
- * the caldacs, but we can guess.
+ * There are three DAC8800 TrimDACs on the board. These are 8-channel,
+ * 8-bit DACs that are used to calibrate the Analog Output channels.
+ * The factory default calibration values are stored in the EEPROM.
+ * The TrimDACs, and EEPROM addresses, are mapped as:
+ *
+ *        Channel       EEPROM  Description
+ *   -----------------  ------  -----------------------------------
+ *    0 - DAC0 Chan 0    0x30   AO Channel 0 Offset
+ *    1 - DAC0 Chan 1    0x31   AO Channel 0 Gain
+ *    2 - DAC0 Chan 2    0x32   AO Channel 1 Offset
+ *    3 - DAC0 Chan 3    0x33   AO Channel 1 Gain
+ *    4 - DAC0 Chan 4    0x34   AO Channel 2 Offset
+ *    5 - DAC0 Chan 5    0x35   AO Channel 2 Gain
+ *    6 - DAC0 Chan 6    0x36   AO Channel 3 Offset
+ *    7 - DAC0 Chan 7    0x37   AO Channel 3 Gain
+ *    8 - DAC1 Chan 0    0x38   AO Channel 4 Offset
+ *    9 - DAC1 Chan 1    0x39   AO Channel 4 Gain
+ *   10 - DAC1 Chan 2    0x3a   AO Channel 5 Offset
+ *   11 - DAC1 Chan 3    0x3b   AO Channel 5 Gain
+ *   12 - DAC1 Chan 4    0x3c   2.5V Offset
+ *   13 - DAC1 Chan 5    0x3d   AO Channel 6 Offset (at-ao-10 only)
+ *   14 - DAC1 Chan 6    0x3e   AO Channel 6 Gain   (at-ao-10 only)
+ *   15 - DAC1 Chan 7    0x3f   AO Channel 7 Offset (at-ao-10 only)
+ *   16 - DAC2 Chan 0    0x40   AO Channel 7 Gain   (at-ao-10 only)
+ *   17 - DAC2 Chan 1    0x41   AO Channel 8 Offset (at-ao-10 only)
+ *   18 - DAC2 Chan 2    0x42   AO Channel 8 Gain   (at-ao-10 only)
+ *   19 - DAC2 Chan 3    0x43   AO Channel 9 Offset (at-ao-10 only)
+ *   20 - DAC2 Chan 4    0x44   AO Channel 9 Gain   (at-ao-10 only)
+ *        DAC2 Chan 5    0x45   Reserved
+ *        DAC2 Chan 6    0x46   Reserved
+ *        DAC2 Chan 7    0x47   Reserved
  */
-static int atao_calib_insn_read(struct comedi_device *dev,
-				struct comedi_subdevice *s,
-				struct comedi_insn *insn, unsigned int *data)
-{
-	int i;
-	for (i = 0; i < insn->n; i++)
-		data[i] = 0;	/* XXX */
-	return insn->n;
-}
-
 static int atao_calib_insn_write(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn, unsigned int *data)
+				 struct comedi_insn *insn,
+				 unsigned int *data)
 {
 	struct atao_private *devpriv = dev->private;
-	unsigned int bitstring, bit;
 	unsigned int chan = CR_CHAN(insn->chanspec);
+	unsigned int bitstring;
+	unsigned int val;
+	int bit;
+
+	if (insn->n == 0)
+		return 0;
+
+	devpriv->caldac[chan] = data[insn->n - 1] & s->maxdata;
+
+	/* write the channel and last data value to the caldac */
+	bitstring = ((chan & 0x7) << 8) | devpriv->caldac[chan];
 
-	bitstring = ((chan & 0x7) << 8) | (data[insn->n - 1] & 0xff);
+	/* clock the bitstring to the caldac; MSB -> LSB */
+	for (bit = 1 << 10; bit; bit >>= 1) {
+		val = (bit & bitstring) ? ATAO_CFG2_SDATA : 0;
 
-	for (bit = 1 << (11 - 1); bit; bit >>= 1) {
-		outw(((bit & bitstring) ? SDATA : 0),
-		     dev->iobase + ATAO_CFG2);
-		outw(SCLK | ((bit & bitstring) ? SDATA : 0),
-		     dev->iobase + ATAO_CFG2);
+		outw(val, dev->iobase + ATAO_CFG2_REG);
+		outw(val | ATAO_CFG2_SCLK, dev->iobase + ATAO_CFG2_REG);
 	}
-	/* strobe the appropriate caldac */
-	outw((((chan >> 3) + 1) << 14),
-	     dev->iobase + ATAO_CFG2);
-	outw(0, dev->iobase + ATAO_CFG2);
+
+	/* strobe the caldac to load the value */
+	outw(ATAO_CFG2_CALLD(chan), dev->iobase + ATAO_CFG2_REG);
+	outw(ATAO_CFG2_CALLD_NOP, dev->iobase + ATAO_CFG2_REG);
+
+	return insn->n;
+}
+
+static int atao_calib_insn_read(struct comedi_device *dev,
+				struct comedi_subdevice *s,
+				struct comedi_insn *insn,
+				unsigned int *data)
+{
+	struct atao_private *devpriv = dev->private;
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	int i;
+
+	for (i = 0; i < insn->n; i++)
+		data[i] = devpriv->caldac[chan];
 
 	return insn->n;
 }
@@ -349,14 +386,14 @@ static int atao_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->insn_bits = atao_dio_insn_bits;
 	s->insn_config = atao_dio_insn_config;
 
-	s = &dev->subdevices[2];
 	/* caldac subdevice */
-	s->type = COMEDI_SUBD_CALIB;
-	s->subdev_flags = SDF_WRITABLE | SDF_INTERNAL;
-	s->n_chan = 21;
-	s->maxdata = 0xff;
-	s->insn_read = atao_calib_insn_read;
-	s->insn_write = atao_calib_insn_write;
+	s = &dev->subdevices[2];
+	s->type		= COMEDI_SUBD_CALIB;
+	s->subdev_flags	= SDF_WRITABLE | SDF_INTERNAL;
+	s->n_chan	= (board->n_ao_chans * 2) + 1;
+	s->maxdata	= 0xff;
+	s->insn_read	= atao_calib_insn_read;
+	s->insn_write	= atao_calib_insn_write;
 
 	s = &dev->subdevices[3];
 	/* eeprom subdevice */
-- 
cgit 


From 5bcaed855902dd3b69e7ece8387c206bcaa2bb4d Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 17:52:13 -0700
Subject: staging: comedi: ni_at_ao: tidy up the CFG3 register defines

Rename the defines for the CFG3 register so they have namespace
associated with the driver.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_ao.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index cbf2b0c40347..d18aaf1f4392 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -52,14 +52,14 @@ Configuration options:
 #define ATAO_CFG2_PROMEN	(1 << 2)
 #define ATAO_CFG2_SCLK		(1 << 1)
 #define ATAO_CFG2_SDATA		(1 << 0)
-#define ATAO_CFG3		0x04	/* W 16 */
-#define DMAMODE			(1 << 6)
-#define CLKOUT			(1 << 5)
-#define RCLKEN			(1 << 4)
-#define DOUTEN2			(1 << 3)
-#define DOUTEN1			(1 << 2)
-#define EN2_5V			(1 << 1)
-#define SCANEN			(1 << 0)
+#define ATAO_CFG3_REG		0x04
+#define ATAO_CFG3_DMAMODE	(1 << 6)
+#define ATAO_CFG3_CLKOUT	(1 << 5)
+#define ATAO_CFG3_RCLKEN	(1 << 4)
+#define ATAO_CFG3_DOUTEN2	(1 << 3)
+#define ATAO_CFG3_DOUTEN1	(1 << 2)
+#define ATAO_CFG3_EN2_5V	(1 << 1)
+#define ATAO_CFG3_SCANEN	(1 << 0)
 #define ATAO_82C53_BASE		0x06	/* RW 8 */
 #define ATAO_82C53_CNTR1	0x06	/* RW 8 */
 #define ATAO_82C53_CNTR2	0x07	/* RW 8 */
@@ -160,7 +160,7 @@ static void atao_reset(struct comedi_device *dev)
 	outw(ATAO_CFG2_CALLD_NOP, dev->iobase + ATAO_CFG2_REG);
 
 	devpriv->cfg3 = 0;
-	outw(devpriv->cfg3, dev->iobase + ATAO_CFG3);
+	outw(devpriv->cfg3, dev->iobase + ATAO_CFG3_REG);
 
 	inw(dev->iobase + ATAO_FIFO_CLEAR);
 
@@ -246,15 +246,15 @@ static int atao_dio_insn_config(struct comedi_device *dev,
 		return ret;
 
 	if (s->io_bits & 0x0f)
-		devpriv->cfg3 |= DOUTEN1;
+		devpriv->cfg3 |= ATAO_CFG3_DOUTEN1;
 	else
-		devpriv->cfg3 &= ~DOUTEN1;
+		devpriv->cfg3 &= ~ATAO_CFG3_DOUTEN1;
 	if (s->io_bits & 0xf0)
-		devpriv->cfg3 |= DOUTEN2;
+		devpriv->cfg3 |= ATAO_CFG3_DOUTEN2;
 	else
-		devpriv->cfg3 &= ~DOUTEN2;
+		devpriv->cfg3 &= ~ATAO_CFG3_DOUTEN2;
 
-	outw(devpriv->cfg3, dev->iobase + ATAO_CFG3);
+	outw(devpriv->cfg3, dev->iobase + ATAO_CFG3_REG);
 
 	return insn->n;
 }
-- 
cgit 


From 947f8504193944f31006d228af5ab19461967428 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 17:52:32 -0700
Subject: staging: comedi: ni_at_ao: use 8253.h helpers

To better document the code, use the 8254.h helpers to set the
timers instead of doing the outb() instructions.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_ao.c | 40 +++++++------------------------
 1 file changed, 9 insertions(+), 31 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index d18aaf1f4392..fed82f886d98 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -37,8 +37,11 @@ Configuration options:
  */
 
 #include <linux/module.h>
+
 #include "../comedidev.h"
 
+#include "8253.h"
+
 /*
  * Register map
  */
@@ -60,34 +63,7 @@ Configuration options:
 #define ATAO_CFG3_DOUTEN1	(1 << 2)
 #define ATAO_CFG3_EN2_5V	(1 << 1)
 #define ATAO_CFG3_SCANEN	(1 << 0)
-#define ATAO_82C53_BASE		0x06	/* RW 8 */
-#define ATAO_82C53_CNTR1	0x06	/* RW 8 */
-#define ATAO_82C53_CNTR2	0x07	/* RW 8 */
-#define ATAO_82C53_CNTR3	0x08	/* RW 8 */
-#define ATAO_82C53_CNTRCMD	0x09	/* W 8 */
-#define CNTRSEL1		(1 << 7)
-#define CNTRSEL0		(1 << 6)
-#define RWSEL1			(1 << 5)
-#define RWSEL0			(1 << 4)
-#define MODESEL2		(1 << 3)
-#define MODESEL1		(1 << 2)
-#define MODESEL0		(1 << 1)
-#define BCDSEL			(1 << 0)
-  /* read-back command */
-#define COUNT			(1 << 5)
-#define STATUS			(1 << 4)
-#define CNTR3			(1 << 3)
-#define CNTR2			(1 << 2)
-#define CNTR1			(1 << 1)
-  /* status */
-#define OUT			(1 << 7)
-#define _NULL			(1 << 6)
-#define RW1			(1 << 5)
-#define RW0			(1 << 4)
-#define MODE2			(1 << 3)
-#define MODE1			(1 << 2)
-#define MODE0			(1 << 1)
-#define BCD			(1 << 0)
+#define ATAO_82C53_BASE		0x06
 #define ATAO_CFG1_REG		0x0a
 #define ATAO_CFG1_EXTINT2EN	(1 << 15)
 #define ATAO_CFG1_EXTINT1EN	(1 << 14)
@@ -153,9 +129,11 @@ static void atao_reset(struct comedi_device *dev)
 	devpriv->cfg1 = 0;
 	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
 
-	outb(RWSEL0 | MODESEL2, dev->iobase + ATAO_82C53_CNTRCMD);
-	outb(0x03, dev->iobase + ATAO_82C53_CNTR1);
-	outb(CNTRSEL0 | RWSEL0 | MODESEL2, dev->iobase + ATAO_82C53_CNTRCMD);
+	/* Put outputs of counter 1 and counter 2 in a high state */
+	i8254_load(dev->iobase + ATAO_82C53_BASE, 0,
+		   0, 0x0003, I8254_MODE4 | I8254_BINARY);
+	i8254_set_mode(dev->iobase + ATAO_82C53_BASE, 0,
+		   1, I8254_MODE4 | I8254_BINARY);
 
 	outw(ATAO_CFG2_CALLD_NOP, dev->iobase + ATAO_CFG2_REG);
 
-- 
cgit 


From 4d60c12d0c61fd36c1fbe54479d20f9c423f88b2 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 17:52:53 -0700
Subject: staging: comedi: ni_at_ao: rename the rest of the register map

For aesthetics, rename the remaining register map defines so they
follow the same format as the ones already renamed.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_ao.c | 29 ++++++++++++++---------------
 1 file changed, 14 insertions(+), 15 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index fed82f886d98..58c910e65905 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -86,18 +86,17 @@ Configuration options:
 #define ATAO_STATUS_INT1	(1 << 2)
 #define ATAO_STATUS_TCINT	(1 << 1)
 #define ATAO_STATUS_PROMOUT	(1 << 0)
-#define ATAO_FIFO_WRITE		0x0c	/* W 16 */
-#define ATAO_FIFO_CLEAR		0x0c	/* R 16 */
-#define ATAO_DACn(x)		(0x0c + ((x) * 2))	/* W */
+#define ATAO_FIFO_WRITE_REG	0x0c
+#define ATAO_FIFO_CLEAR_REG	0x0c
+#define ATAO_AO_REG(x)		(0x0c + ((x) * 2))
 
 /* registers with _2_ are accessed when GRP2WR is set in CFG1 */
-
-#define ATAO_2_DMATCCLR		0x00	/* W 16 */
-#define ATAO_2_INT1CLR		0x02	/* W 16 */
-#define ATAO_2_INT2CLR		0x04	/* W 16 */
-#define ATAO_2_RTSISHFT		0x06	/* W 8 */
-#define ATAO_RTSISHFT_RSI	(1 << 0)
-#define ATAO_2_RTSISTRB		0x07	/* W 8 */
+#define ATAO_2_DMATCCLR_REG	0x00
+#define ATAO_2_INT1CLR_REG	0x02
+#define ATAO_2_INT2CLR_REG	0x04
+#define ATAO_2_RTSISHFT_REG	0x06
+#define ATAO_2_RTSISHFT_RSI	(1 << 0)
+#define ATAO_2_RTSISTRB_REG	0x07
 
 /*
  * Board descriptions for two imaginary boards.  Describing the
@@ -140,14 +139,14 @@ static void atao_reset(struct comedi_device *dev)
 	devpriv->cfg3 = 0;
 	outw(devpriv->cfg3, dev->iobase + ATAO_CFG3_REG);
 
-	inw(dev->iobase + ATAO_FIFO_CLEAR);
+	inw(dev->iobase + ATAO_FIFO_CLEAR_REG);
 
 	devpriv->cfg1 |= ATAO_CFG1_GRP2WR;
 	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
 
-	outw(0, dev->iobase + ATAO_2_INT1CLR);
-	outw(0, dev->iobase + ATAO_2_INT2CLR);
-	outw(0, dev->iobase + ATAO_2_DMATCCLR);
+	outw(0, dev->iobase + ATAO_2_INT1CLR_REG);
+	outw(0, dev->iobase + ATAO_2_INT2CLR_REG);
+	outw(0, dev->iobase + ATAO_2_DMATCCLR_REG);
 
 	devpriv->cfg1 &= ~ATAO_CFG1_GRP2WR;
 	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
@@ -167,7 +166,7 @@ static int atao_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
 			devpriv->cfg1 |= ATAO_CFG1_GRP2WR;
 			outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
 		}
-		outw(bits, dev->iobase + ATAO_DACn(chan));
+		outw(bits, dev->iobase + ATAO_AO_REG(chan));
 		if (chan == 0) {
 			devpriv->cfg1 &= ~ATAO_CFG1_GRP2WR;
 			outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
-- 
cgit 


From 83fa0099e76ddb7ba617489ca12b826d3bea1402 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 17:53:11 -0700
Subject: staging: comedi: ni_at_ao: move the boardinfo declaration

For aesthetics, move the boardinfo declaration closer to the struct
definition. Also, remove the cut-and-paste skel driver comment.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_ao.c | 25 ++++++++++---------------
 1 file changed, 10 insertions(+), 15 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index 58c910e65905..0a8ed0c5785b 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -98,16 +98,21 @@ Configuration options:
 #define ATAO_2_RTSISHFT_RSI	(1 << 0)
 #define ATAO_2_RTSISTRB_REG	0x07
 
-/*
- * Board descriptions for two imaginary boards.  Describing the
- * boards in this way is optional, and completely driver-dependent.
- * Some drivers use arrays such as this, other do not.
- */
 struct atao_board {
 	const char *name;
 	int n_ao_chans;
 };
 
+static const struct atao_board atao_boards[] = {
+	{
+		.name		= "ai-ao-6",
+		.n_ao_chans	= 6,
+	}, {
+		.name		= "ai-ao-10",
+		.n_ao_chans	= 10,
+	},
+};
+
 struct atao_private {
 	unsigned short cfg1;
 	unsigned short cfg3;
@@ -384,16 +389,6 @@ static int atao_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	return 0;
 }
 
-static const struct atao_board atao_boards[] = {
-	{
-		.name		= "ai-ao-6",
-		.n_ao_chans	= 6,
-	}, {
-		.name		= "ai-ao-10",
-		.n_ao_chans	= 10,
-	},
-};
-
 static struct comedi_driver ni_at_ao_driver = {
 	.driver_name	= "ni_at_ao",
 	.module		= THIS_MODULE,
-- 
cgit 


From 100515f81099f42524e64d153882a400aad22248 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 17:53:31 -0700
Subject: staging: comedi: ni_at_ao: move the atao_reset() function

For aesthetics, move this function closer to it's only caller.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_ao.c | 66 +++++++++++++++----------------
 1 file changed, 33 insertions(+), 33 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index 0a8ed0c5785b..7803ad184214 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -124,39 +124,6 @@ struct atao_private {
 	unsigned char caldac[21];
 };
 
-static void atao_reset(struct comedi_device *dev)
-{
-	struct atao_private *devpriv = dev->private;
-
-	/* This is the reset sequence described in the manual */
-
-	devpriv->cfg1 = 0;
-	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
-
-	/* Put outputs of counter 1 and counter 2 in a high state */
-	i8254_load(dev->iobase + ATAO_82C53_BASE, 0,
-		   0, 0x0003, I8254_MODE4 | I8254_BINARY);
-	i8254_set_mode(dev->iobase + ATAO_82C53_BASE, 0,
-		   1, I8254_MODE4 | I8254_BINARY);
-
-	outw(ATAO_CFG2_CALLD_NOP, dev->iobase + ATAO_CFG2_REG);
-
-	devpriv->cfg3 = 0;
-	outw(devpriv->cfg3, dev->iobase + ATAO_CFG3_REG);
-
-	inw(dev->iobase + ATAO_FIFO_CLEAR_REG);
-
-	devpriv->cfg1 |= ATAO_CFG1_GRP2WR;
-	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
-
-	outw(0, dev->iobase + ATAO_2_INT1CLR_REG);
-	outw(0, dev->iobase + ATAO_2_INT2CLR_REG);
-	outw(0, dev->iobase + ATAO_2_DMATCCLR_REG);
-
-	devpriv->cfg1 &= ~ATAO_CFG1_GRP2WR;
-	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
-}
-
 static int atao_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
 			 struct comedi_insn *insn, unsigned int *data)
 {
@@ -323,6 +290,39 @@ static int atao_calib_insn_read(struct comedi_device *dev,
 	return insn->n;
 }
 
+static void atao_reset(struct comedi_device *dev)
+{
+	struct atao_private *devpriv = dev->private;
+
+	/* This is the reset sequence described in the manual */
+
+	devpriv->cfg1 = 0;
+	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
+
+	/* Put outputs of counter 1 and counter 2 in a high state */
+	i8254_load(dev->iobase + ATAO_82C53_BASE, 0,
+		   0, 0x0003, I8254_MODE4 | I8254_BINARY);
+	i8254_set_mode(dev->iobase + ATAO_82C53_BASE, 0,
+		   1, I8254_MODE4 | I8254_BINARY);
+
+	outw(ATAO_CFG2_CALLD_NOP, dev->iobase + ATAO_CFG2_REG);
+
+	devpriv->cfg3 = 0;
+	outw(devpriv->cfg3, dev->iobase + ATAO_CFG3_REG);
+
+	inw(dev->iobase + ATAO_FIFO_CLEAR_REG);
+
+	devpriv->cfg1 |= ATAO_CFG1_GRP2WR;
+	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
+
+	outw(0, dev->iobase + ATAO_2_INT1CLR_REG);
+	outw(0, dev->iobase + ATAO_2_INT2CLR_REG);
+	outw(0, dev->iobase + ATAO_2_DMATCCLR_REG);
+
+	devpriv->cfg1 &= ~ATAO_CFG1_GRP2WR;
+	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
+}
+
 static int atao_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 {
 	const struct atao_board *board = comedi_board(dev);
-- 
cgit 


From a7d3d419f905e5a3203874e4b7a9e45d2167f2b5 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 17:53:50 -0700
Subject: staging: comedi: ni_at_ao: introduce atao_select_reg_group()

To clarify the code a bit, introduce a helper function to set/clear
the GRP2WR bit in the CFG1 register. This bit selects which group of
registers are used for the registers that share the same I/O addresses.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_ao.c | 31 +++++++++++++++++--------------
 1 file changed, 17 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index 7803ad184214..65c4712966a0 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -124,6 +124,17 @@ struct atao_private {
 	unsigned char caldac[21];
 };
 
+static void atao_select_reg_group(struct comedi_device *dev, int group)
+{
+	struct atao_private *devpriv = dev->private;
+
+	if (group)
+		devpriv->cfg1 |= ATAO_CFG1_GRP2WR;
+	else
+		devpriv->cfg1 &= ~ATAO_CFG1_GRP2WR;
+	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
+}
+
 static int atao_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
 			 struct comedi_insn *insn, unsigned int *data)
 {
@@ -134,15 +145,11 @@ static int atao_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
 
 	for (i = 0; i < insn->n; i++) {
 		bits = data[i] - 0x800;
-		if (chan == 0) {
-			devpriv->cfg1 |= ATAO_CFG1_GRP2WR;
-			outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
-		}
+		if (chan == 0)
+			atao_select_reg_group(dev, 1);
 		outw(bits, dev->iobase + ATAO_AO_REG(chan));
-		if (chan == 0) {
-			devpriv->cfg1 &= ~ATAO_CFG1_GRP2WR;
-			outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
-		}
+		if (chan == 0)
+			atao_select_reg_group(dev, 0);
 		devpriv->ao_readback[chan] = data[i];
 	}
 
@@ -312,15 +319,11 @@ static void atao_reset(struct comedi_device *dev)
 
 	inw(dev->iobase + ATAO_FIFO_CLEAR_REG);
 
-	devpriv->cfg1 |= ATAO_CFG1_GRP2WR;
-	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
-
+	atao_select_reg_group(dev, 1);
 	outw(0, dev->iobase + ATAO_2_INT1CLR_REG);
 	outw(0, dev->iobase + ATAO_2_INT2CLR_REG);
 	outw(0, dev->iobase + ATAO_2_DMATCCLR_REG);
-
-	devpriv->cfg1 &= ~ATAO_CFG1_GRP2WR;
-	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
+	atao_select_reg_group(dev, 0);
 }
 
 static int atao_attach(struct comedi_device *dev, struct comedi_devconfig *it)
-- 
cgit 


From 8305aac35741009a0946eb1fe536bec11e8e12cb Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 17:54:08 -0700
Subject: staging: comedi: ni_at_ao: tidy up atao_ao_winsn()

For aesthetics, rename this function to help with greps.

For channel 0, register group 1 only needs to be selected before
writing the values and restored to group 0 when the writes are
finished. Move the code out of the for () loop.

Use the comedi_ffset_munge() helper to handle the offset binary to
two's complement munging.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_ao.c | 33 +++++++++++++++++++------------
 1 file changed, 20 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index 65c4712966a0..7ffa6c039bd6 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -135,25 +135,32 @@ static void atao_select_reg_group(struct comedi_device *dev, int group)
 	outw(devpriv->cfg1, dev->iobase + ATAO_CFG1_REG);
 }
 
-static int atao_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
-			 struct comedi_insn *insn, unsigned int *data)
+static int atao_ao_insn_write(struct comedi_device *dev,
+			      struct comedi_subdevice *s,
+			      struct comedi_insn *insn,
+			      unsigned int *data)
 {
 	struct atao_private *devpriv = dev->private;
+	unsigned int chan = CR_CHAN(insn->chanspec);
+	unsigned int val;
 	int i;
-	int chan = CR_CHAN(insn->chanspec);
-	short bits;
+
+	if (chan == 0)
+		atao_select_reg_group(dev, 1);
 
 	for (i = 0; i < insn->n; i++) {
-		bits = data[i] - 0x800;
-		if (chan == 0)
-			atao_select_reg_group(dev, 1);
-		outw(bits, dev->iobase + ATAO_AO_REG(chan));
-		if (chan == 0)
-			atao_select_reg_group(dev, 0);
-		devpriv->ao_readback[chan] = data[i];
+		val = data[i];
+		devpriv->ao_readback[chan] = val;
+
+		/* munge offset binary (unsigned) to two's complement */
+		val = comedi_offset_munge(s, val);
+		outw(val, dev->iobase + ATAO_AO_REG(chan));
 	}
 
-	return i;
+	if (chan == 0)
+		atao_select_reg_group(dev, 0);
+
+	return insn->n;
 }
 
 static int atao_ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
@@ -358,7 +365,7 @@ static int atao_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		s->range_table = &range_unipolar10;
 	else
 		s->range_table = &range_bipolar10;
-	s->insn_write = &atao_ao_winsn;
+	s->insn_write = atao_ao_insn_write;
 	s->insn_read = &atao_ao_rinsn;
 
 	s = &dev->subdevices[1];
-- 
cgit 


From bf9fab836ff3012365ce167798bc0ce4bffe8cb1 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 17:54:25 -0700
Subject: staging: comedi: ni_at_ao: tidy up atao_ao_rinsn()

For aesthetics, rename this function to help with greps.

Tidy up this function to follow the normal format for analog
output read back functions.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_ao.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index 7ffa6c039bd6..b47eb9f4bb96 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -163,17 +163,19 @@ static int atao_ao_insn_write(struct comedi_device *dev,
 	return insn->n;
 }
 
-static int atao_ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
-			 struct comedi_insn *insn, unsigned int *data)
+static int atao_ao_insn_read(struct comedi_device *dev,
+			     struct comedi_subdevice *s,
+			     struct comedi_insn *insn,
+			     unsigned int *data)
 {
 	struct atao_private *devpriv = dev->private;
+	unsigned int chan = CR_CHAN(insn->chanspec);
 	int i;
-	int chan = CR_CHAN(insn->chanspec);
 
 	for (i = 0; i < insn->n; i++)
 		data[i] = devpriv->ao_readback[chan];
 
-	return i;
+	return insn->n;
 }
 
 static int atao_dio_insn_bits(struct comedi_device *dev,
@@ -366,7 +368,7 @@ static int atao_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	else
 		s->range_table = &range_bipolar10;
 	s->insn_write = atao_ao_insn_write;
-	s->insn_read = &atao_ao_rinsn;
+	s->insn_read = atao_ao_insn_read;
 
 	s = &dev->subdevices[1];
 	/* digital i/o subdevice */
-- 
cgit 


From 32d5767a49da50c319989dad56f70c453bc574be Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 17:54:42 -0700
Subject: staging: comedi: ni_at_ao: tidy up atao_attach()

For aesthetics, add some whitespace to the subdevice init.

Remove the printk noise at the end of the attach.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_ao.c | 47 +++++++++++++------------------
 1 file changed, 19 insertions(+), 28 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index b47eb9f4bb96..e1be07abafd0 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -340,11 +340,8 @@ static int atao_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	const struct atao_board *board = comedi_board(dev);
 	struct atao_private *devpriv;
 	struct comedi_subdevice *s;
-	int ao_unipolar;
 	int ret;
 
-	ao_unipolar = it->options[3];
-
 	ret = comedi_request_region(dev, it->options[0], 0x20);
 	if (ret)
 		return ret;
@@ -357,28 +354,25 @@ static int atao_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret)
 		return ret;
 
+	/* Analog Output subdevice */
 	s = &dev->subdevices[0];
-	/* analog output subdevice */
-	s->type = COMEDI_SUBD_AO;
-	s->subdev_flags = SDF_WRITABLE;
-	s->n_chan = board->n_ao_chans;
-	s->maxdata = (1 << 12) - 1;
-	if (ao_unipolar)
-		s->range_table = &range_unipolar10;
-	else
-		s->range_table = &range_bipolar10;
-	s->insn_write = atao_ao_insn_write;
-	s->insn_read = atao_ao_insn_read;
-
+	s->type		= COMEDI_SUBD_AO;
+	s->subdev_flags	= SDF_WRITABLE;
+	s->n_chan	= board->n_ao_chans;
+	s->maxdata	= 0x0fff;
+	s->range_table	= it->options[3] ? &range_unipolar10 : &range_bipolar10;
+	s->insn_write	= atao_ao_insn_write;
+	s->insn_read	= atao_ao_insn_read;
+
+	/* Digital I/O subdevice */
 	s = &dev->subdevices[1];
-	/* digital i/o subdevice */
-	s->type = COMEDI_SUBD_DIO;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-	s->n_chan = 8;
-	s->maxdata = 1;
-	s->range_table = &range_digital;
-	s->insn_bits = atao_dio_insn_bits;
-	s->insn_config = atao_dio_insn_config;
+	s->type		= COMEDI_SUBD_DIO;
+	s->subdev_flags	= SDF_READABLE | SDF_WRITABLE;
+	s->n_chan	= 8;
+	s->maxdata	= 1;
+	s->range_table	= &range_digital;
+	s->insn_bits	= atao_dio_insn_bits;
+	s->insn_config	= atao_dio_insn_config;
 
 	/* caldac subdevice */
 	s = &dev->subdevices[2];
@@ -389,15 +383,12 @@ static int atao_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	s->insn_read	= atao_calib_insn_read;
 	s->insn_write	= atao_calib_insn_write;
 
+	/* EEPROM subdevice */
 	s = &dev->subdevices[3];
-	/* eeprom subdevice */
-	/* s->type=COMEDI_SUBD_EEPROM; */
-	s->type = COMEDI_SUBD_UNUSED;
+	s->type		= COMEDI_SUBD_UNUSED;
 
 	atao_reset(dev);
 
-	printk(KERN_INFO "\n");
-
 	return 0;
 }
 
-- 
cgit 


From 58c34c3190136880c9cd40567c5711e4e32f11e3 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 17:54:58 -0700
Subject: staging: comedi: ni_at_ao: tidy up multi-line comments

Cleanup the multi-line comments to follow the CodingStyle.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_ao.c | 69 ++++++++++++++++---------------
 1 file changed, 35 insertions(+), 34 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index e1be07abafd0..ff1d4adee905 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -1,39 +1,37 @@
 /*
-    comedi/drivers/ni_at_ao.c
-    Driver for NI AT-AO-6/10 boards
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 2000,2002 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: ni_at_ao
-Description: National Instruments AT-AO-6/10
-Devices: [National Instruments] AT-AO-6 (at-ao-6), AT-AO-10 (at-ao-10)
-Status: should work
-Author: ds
-Updated: Sun Dec 26 12:26:28 EST 2004
-
-Configuration options:
-  [0] - I/O port base address
-  [1] - IRQ (unused)
-  [2] - DMA (unused)
-  [3] - analog output range, set by jumpers on hardware (0 for -10 to 10V
-	bipolar, 1 for 0V to 10V unipolar)
-
-*/
+ * ni_at_ao.c
+ * Driver for NI AT-AO-6/10 boards
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 2000,2002 David A. Schleef <ds@schleef.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
 /*
- * Register-level programming information can be found in NI
- * document 320379.pdf.
+ * Driver: ni_at_ao
+ * Description: National Instruments AT-AO-6/10
+ * Devices: (National Instruments) AT-AO-6 [at-ao-6]
+ *          (National Instruments) AT-AO-10 [at-ao-10]
+ * Status: should work
+ * Author: David A. Schleef <ds@schleef.org>
+ * Updated: Sun Dec 26 12:26:28 EST 2004
+ *
+ * Configuration options:
+ *   [0] - I/O port base address
+ *   [1] - IRQ (unused)
+ *   [2] - DMA (unused)
+ *   [3] - analog output range, set by jumpers on hardware
+ *         0 for -10 to 10V bipolar
+ *         1 for 0V to 10V unipolar
  */
 
 #include <linux/module.h>
@@ -44,6 +42,9 @@ Configuration options:
 
 /*
  * Register map
+ *
+ * Register-level programming information can be found in NI
+ * document 320379.pdf.
  */
 #define ATAO_DIO_REG		0x00
 #define ATAO_CFG2_REG		0x02
-- 
cgit 


From 50a9cd58713a709791e175997e0d6bd5cc18d456 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 17:55:14 -0700
Subject: staging: comedi: ni_at_ao: change MODULE_DESCRIPTION

Change the MODULE_DESCRIPTION to something useful instead of the
generic "Comedi low-level driver".

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_ao.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index ff1d4adee905..acb480e43be5 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -405,5 +405,5 @@ static struct comedi_driver ni_at_ao_driver = {
 module_comedi_driver(ni_at_ao_driver);
 
 MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
+MODULE_DESCRIPTION("Comedi driver for NI AT-AO-6/10 boards");
 MODULE_LICENSE("GPL");
-- 
cgit 


From 617c8264decbd60a145b4948cf07f6b803a8dffd Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Mon, 30 Sep 2013 17:55:33 -0700
Subject: staging: comedi: ni_at_ao: fix board names

This driver works with "at-ao-6/10" boards not "ai-ao-6/10" boards.
Fix the names in the boardinfo.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_ao.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_ao.c b/drivers/staging/comedi/drivers/ni_at_ao.c
index acb480e43be5..10e3e9475ee2 100644
--- a/drivers/staging/comedi/drivers/ni_at_ao.c
+++ b/drivers/staging/comedi/drivers/ni_at_ao.c
@@ -106,10 +106,10 @@ struct atao_board {
 
 static const struct atao_board atao_boards[] = {
 	{
-		.name		= "ai-ao-6",
+		.name		= "at-ao-6",
 		.n_ao_chans	= 6,
 	}, {
-		.name		= "ai-ao-10",
+		.name		= "at-ao-10",
 		.n_ao_chans	= 10,
 	},
 };
-- 
cgit 


From 36edca14779c2784daaf81d2306f65d500942154 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:08:10 -0700
Subject: staging: comedi: ni_6527: remove DRIVER_NAME define

The request_irq() call should be using dev->board_name to better
identify the irq user.

Remove the DRIVER_NAME define and just open code the 'driver_name' in
the comedi_driver and the 'name' in the pci_driver declarations.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index 44557c9671ac..f3ff329847b6 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -45,8 +45,6 @@ Updated: Sat, 25 Jan 2003 13:24:40 -0800
 #include "comedi_fc.h"
 #include "mite.h"
 
-#define DRIVER_NAME "ni_6527"
-
 #define NI6527_DIO_SIZE 4096
 #define NI6527_MITE_SIZE 4096
 
@@ -396,7 +394,7 @@ static int ni6527_auto_attach(struct comedi_device *dev,
 	writeb(0x00, devpriv->mite->daq_io_addr + Master_Interrupt_Control);
 
 	ret = request_irq(mite_irq(devpriv->mite), ni6527_interrupt,
-			  IRQF_SHARED, DRIVER_NAME, dev);
+			  IRQF_SHARED, dev->board_name, dev);
 	if (ret < 0)
 		dev_warn(dev->class_dev, "irq not available\n");
 	else
@@ -422,7 +420,7 @@ static void ni6527_detach(struct comedi_device *dev)
 }
 
 static struct comedi_driver ni6527_driver = {
-	.driver_name = DRIVER_NAME,
+	.driver_name = "ni_6527",
 	.module = THIS_MODULE,
 	.auto_attach = ni6527_auto_attach,
 	.detach = ni6527_detach,
@@ -442,7 +440,7 @@ static DEFINE_PCI_DEVICE_TABLE(ni6527_pci_table) = {
 MODULE_DEVICE_TABLE(pci, ni6527_pci_table);
 
 static struct pci_driver ni6527_pci_driver = {
-	.name		= DRIVER_NAME,
+	.name		= "ni_6527",
 	.id_table	= ni6527_pci_table,
 	.probe		= ni6527_pci_probe,
 	.remove		= comedi_pci_auto_unconfig,
-- 
cgit 


From 1b5bb662450fd34858613eedc1ba8bf3be560465 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:08:40 -0700
Subject: staging: comedi: ni_6527: remove unused NI6527_*_SIZE defines

These defines are not used in the driver. Remove them.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index f3ff329847b6..fb24bc56fc81 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -45,9 +45,6 @@ Updated: Sat, 25 Jan 2003 13:24:40 -0800
 #include "comedi_fc.h"
 #include "mite.h"
 
-#define NI6527_DIO_SIZE 4096
-#define NI6527_MITE_SIZE 4096
-
 #define Port_Register(x)			(0x00+(x))
 #define ID_Register				0x06
 
-- 
cgit 


From 186bdcd176d94b6777d88a6a5712b428570a9e1a Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:08:58 -0700
Subject: staging: comedi: ni_6527: remove unused DEBUG* defines

These defines are not used in the driver. Remove them.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index fb24bc56fc81..f99825dcda05 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -33,9 +33,6 @@ Updated: Sat, 25 Jan 2003 13:24:40 -0800
 
  */
 
-#define DEBUG 1
-#define DEBUG_FLAGS
-
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/interrupt.h>
-- 
cgit 


From 94ff05bc3f06e920971dbad8c274868b71c24a71 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:09:16 -0700
Subject: staging: comedi: ni_6527: remove extra probe noise

The dev_info() showing the board id is just extra noise.

Remove it but make sure the probed id is correct. Rename the CamelCase
define used for the id register.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index f99825dcda05..4608d61aa44e 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -43,7 +43,7 @@ Updated: Sat, 25 Jan 2003 13:24:40 -0800
 #include "mite.h"
 
 #define Port_Register(x)			(0x00+(x))
-#define ID_Register				0x06
+#define NI6527_ID_REG			0x06
 
 #define Clear_Register				0x07
 #define ClrEdge				0x08
@@ -342,8 +342,9 @@ static int ni6527_auto_attach(struct comedi_device *dev,
 		return ret;
 	}
 
-	dev_info(dev->class_dev, "board: %s, ID=0x%02x\n", dev->board_name,
-		 readb(devpriv->mite->daq_io_addr + ID_Register));
+	/* make sure this is actually a 6527 device */
+	if (readb(devpriv->mite->daq_io_addr + NI6527_ID_REG) != 0x27)
+		return -ENODEV;
 
 	ret = comedi_alloc_subdevices(dev, 3);
 	if (ret)
-- 
cgit 


From 054fd2f647ff040fd4a00d82f9df6771055a3136 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:09:42 -0700
Subject: staging: comedi: ni_6527: factor out the code that sets the filter
 interval

To clarify the digital input subdevice (*insn_config) a bit, factor out the
code that sets the filter interval for deglitching the digital inputs.

Also, rename the CamelCase define used for the filter interval registers.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 33 ++++++++++++++++++--------------
 1 file changed, 19 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index 4608d61aa44e..70304bdb536a 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -51,7 +51,7 @@ Updated: Sat, 25 Jan 2003 13:24:40 -0800
 #define ClrFilter			0x02
 #define ClrInterval			0x01
 
-#define Filter_Interval(x)			(0x08+(x))
+#define NI6527_FILT_INTERVAL_REG(x)	(0x08 + (x))
 #define Filter_Enable(x)			(0x0c+(x))
 
 #define Change_Status				0x14
@@ -93,6 +93,23 @@ struct ni6527_private {
 	unsigned int filter_enable;
 };
 
+static void ni6527_set_filter_interval(struct comedi_device *dev,
+				       unsigned int val)
+{
+	struct ni6527_private *devpriv = dev->private;
+	void __iomem *mmio = devpriv->mite->daq_io_addr;
+
+	if (val != devpriv->filter_interval) {
+		writeb(val & 0xff, mmio + NI6527_FILT_INTERVAL_REG(0));
+		writeb((val >> 8) & 0xff, mmio + NI6527_FILT_INTERVAL_REG(1));
+		writeb((val >> 16) & 0x0f, mmio + NI6527_FILT_INTERVAL_REG(2));
+
+		writeb(ClrInterval, mmio + Clear_Register);
+
+		devpriv->filter_interval = val;
+	}
+}
+
 static int ni6527_di_insn_config(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
 				 struct comedi_insn *insn, unsigned int *data)
@@ -111,19 +128,7 @@ static int ni6527_di_insn_config(struct comedi_device *dev,
 		interval = (data[1] + 100) / 200;
 		data[1] = interval * 200;
 
-		if (interval != devpriv->filter_interval) {
-			writeb(interval & 0xff,
-			       devpriv->mite->daq_io_addr + Filter_Interval(0));
-			writeb((interval >> 8) & 0xff,
-			       devpriv->mite->daq_io_addr + Filter_Interval(1));
-			writeb((interval >> 16) & 0x0f,
-			       devpriv->mite->daq_io_addr + Filter_Interval(2));
-
-			writeb(ClrInterval,
-			       devpriv->mite->daq_io_addr + Clear_Register);
-
-			devpriv->filter_interval = interval;
-		}
+		ni6527_set_filter_interval(dev, interval);
 
 		devpriv->filter_enable |= 1 << chan;
 	} else {
-- 
cgit 


From e3f6ce205cbdb633df71eab61fbac13dfa466802 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:10:22 -0700
Subject: staging: comedi: ni_6527: factor out the code that sets the filter
 enables

To clarify the digital input subdevice (*insn_config) a bit, factor out the
code that sets the filter enables to enable deglitching the digital inputs.

Also, rename the CamelCase define used for the filter enable registers.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 24 ++++++++++++++----------
 1 file changed, 14 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index 70304bdb536a..dc22f9f45749 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -52,7 +52,7 @@ Updated: Sat, 25 Jan 2003 13:24:40 -0800
 #define ClrInterval			0x01
 
 #define NI6527_FILT_INTERVAL_REG(x)	(0x08 + (x))
-#define Filter_Enable(x)			(0x0c+(x))
+#define NI6527_FILT_ENA_REG(x)		(0x0c + (x))
 
 #define Change_Status				0x14
 #define MasterInterruptStatus		0x04
@@ -110,6 +110,17 @@ static void ni6527_set_filter_interval(struct comedi_device *dev,
 	}
 }
 
+static void ni6527_set_filter_enable(struct comedi_device *dev,
+				     unsigned int val)
+{
+	struct ni6527_private *devpriv = dev->private;
+	void __iomem *mmio = devpriv->mite->daq_io_addr;
+
+	writeb(val & 0xff, mmio + NI6527_FILT_ENA_REG(0));
+	writeb((val >> 8) & 0xff, mmio + NI6527_FILT_ENA_REG(1));
+	writeb((val >> 16) & 0xff, mmio + NI6527_FILT_ENA_REG(2));
+}
+
 static int ni6527_di_insn_config(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
 				 struct comedi_insn *insn, unsigned int *data)
@@ -135,12 +146,7 @@ static int ni6527_di_insn_config(struct comedi_device *dev,
 		devpriv->filter_enable &= ~(1 << chan);
 	}
 
-	writeb(devpriv->filter_enable,
-	       devpriv->mite->daq_io_addr + Filter_Enable(0));
-	writeb(devpriv->filter_enable >> 8,
-	       devpriv->mite->daq_io_addr + Filter_Enable(1));
-	writeb(devpriv->filter_enable >> 16,
-	       devpriv->mite->daq_io_addr + Filter_Enable(2));
+	ni6527_set_filter_enable(dev, devpriv->filter_enable);
 
 	return 2;
 }
@@ -385,9 +391,7 @@ static int ni6527_auto_attach(struct comedi_device *dev,
 	s->insn_bits = ni6527_intr_insn_bits;
 	s->insn_config = ni6527_intr_insn_config;
 
-	writeb(0x00, devpriv->mite->daq_io_addr + Filter_Enable(0));
-	writeb(0x00, devpriv->mite->daq_io_addr + Filter_Enable(1));
-	writeb(0x00, devpriv->mite->daq_io_addr + Filter_Enable(2));
+	ni6527_set_filter_enable(dev, 0);
 
 	writeb(ClrEdge | ClrOverflow | ClrFilter | ClrInterval,
 	       devpriv->mite->daq_io_addr + Clear_Register);
-- 
cgit 


From c6d9681b40e6dde9f8cbd922efff1f4d5433adc6 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:10:41 -0700
Subject: staging: comedi: ni_6527: tidy up ni6527_di_insn_config()

The core will validate the insn->n value based on the actual instruction
(data[0]) that is being handled. Remove the sanity check and change the
instruction handling into a switch. This follows the normal format for
(*insn_config) functions and make adding additional instructions easier.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 38 ++++++++++++++++++--------------
 1 file changed, 21 insertions(+), 17 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index dc22f9f45749..65a1ba96fbab 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -123,32 +123,36 @@ static void ni6527_set_filter_enable(struct comedi_device *dev,
 
 static int ni6527_di_insn_config(struct comedi_device *dev,
 				 struct comedi_subdevice *s,
-				 struct comedi_insn *insn, unsigned int *data)
+				 struct comedi_insn *insn,
+				 unsigned int *data)
 {
 	struct ni6527_private *devpriv = dev->private;
-	int chan = CR_CHAN(insn->chanspec);
+	unsigned int chan = CR_CHAN(insn->chanspec);
 	unsigned int interval;
 
-	if (insn->n != 2)
-		return -EINVAL;
-
-	if (data[0] != INSN_CONFIG_FILTER)
-		return -EINVAL;
-
-	if (data[1]) {
+	switch (data[0]) {
+	case INSN_CONFIG_FILTER:
+		/*
+		 * The deglitch filter interval is specified in nanoseconds.
+		 * The hardware supports intervals in 200ns increments. Round
+		 * the user values up and return the actual interval.
+		 */
 		interval = (data[1] + 100) / 200;
 		data[1] = interval * 200;
 
-		ni6527_set_filter_interval(dev, interval);
-
-		devpriv->filter_enable |= 1 << chan;
-	} else {
-		devpriv->filter_enable &= ~(1 << chan);
+		if (interval) {
+			ni6527_set_filter_interval(dev, interval);
+			devpriv->filter_enable |= 1 << chan;
+		} else {
+			devpriv->filter_enable &= ~(1 << chan);
+		}
+		ni6527_set_filter_enable(dev, devpriv->filter_enable);
+		break;
+	default:
+		return -EINVAL;
 	}
 
-	ni6527_set_filter_enable(dev, devpriv->filter_enable);
-
-	return 2;
+	return insn->n;
 }
 
 static int ni6527_di_insn_bits(struct comedi_device *dev,
-- 
cgit 


From 33b73a35a25152aea0a5df78f2bddcfde3115180 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:11:00 -0700
Subject: staging: comedi: ni_6527: tidy up ni6527_{di, do}_insn_bits()

The digital input and output ports are different. Split the CamelCase
Port_Register() define into separate NI6527_DI_REG() and NI6527_DO_REG()
defines to make this clear.

Tidy up the functions a bit.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 37 +++++++++++++++++---------------
 1 file changed, 20 insertions(+), 17 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index 65a1ba96fbab..45a6e37744e1 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -42,7 +42,8 @@ Updated: Sat, 25 Jan 2003 13:24:40 -0800
 #include "comedi_fc.h"
 #include "mite.h"
 
-#define Port_Register(x)			(0x00+(x))
+#define NI6527_DI_REG(x)		(0x00 + (x))
+#define NI6527_DO_REG(x)		(0x03 + (x))
 #define NI6527_ID_REG			0x06
 
 #define Clear_Register				0x07
@@ -157,13 +158,18 @@ static int ni6527_di_insn_config(struct comedi_device *dev,
 
 static int ni6527_di_insn_bits(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
-			       struct comedi_insn *insn, unsigned int *data)
+			       struct comedi_insn *insn,
+			       unsigned int *data)
 {
 	struct ni6527_private *devpriv = dev->private;
+	void __iomem *mmio = devpriv->mite->daq_io_addr;
+	unsigned int val;
+
+	val = readb(mmio + NI6527_DI_REG(0));
+	val |= (readb(mmio + NI6527_DI_REG(1)) << 8);
+	val |= (readb(mmio + NI6527_DI_REG(2)) << 16);
 
-	data[1] = readb(devpriv->mite->daq_io_addr + Port_Register(0));
-	data[1] |= readb(devpriv->mite->daq_io_addr + Port_Register(1)) << 8;
-	data[1] |= readb(devpriv->mite->daq_io_addr + Port_Register(2)) << 16;
+	data[1] = val;
 
 	return insn->n;
 }
@@ -174,23 +180,20 @@ static int ni6527_do_insn_bits(struct comedi_device *dev,
 			       unsigned int *data)
 {
 	struct ni6527_private *devpriv = dev->private;
+	void __iomem *mmio = devpriv->mite->daq_io_addr;
 	unsigned int mask;
 
 	mask = comedi_dio_update_state(s, data);
 	if (mask) {
 		/* Outputs are inverted */
-		if (mask & 0x0000ff) {
-			writeb(s->state ^ 0xff,
-			       devpriv->mite->daq_io_addr + Port_Register(3));
-		}
-		if (mask & 0x00ff00) {
-			writeb((s->state >> 8) ^ 0xff,
-			       devpriv->mite->daq_io_addr + Port_Register(4));
-		}
-		if (mask & 0xff0000) {
-			writeb((s->state >> 16) ^ 0xff,
-			       devpriv->mite->daq_io_addr + Port_Register(5));
-		}
+		unsigned int val = s->state ^ 0xffffff;
+
+		if (mask & 0x0000ff)
+			writeb(val & 0xff, mmio + NI6527_DO_REG(0));
+		if (mask & 0x00ff00)
+			writeb((val >> 8) & 0xff, mmio + NI6527_DO_REG(1));
+		if (mask & 0xff0000)
+			writeb((val >> 16) & 0xff, mmio + NI6527_DO_REG(2));
 	}
 
 	data[1] = s->state;
-- 
cgit 


From 87fe6ebdfcc7485e4935c3f93909bbea5e7ccb7e Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:11:21 -0700
Subject: staging: comedi: ni_6527: use dev->read_subdev in interrupt handler

The comedi_subdevice in the interrupt handler is the dev->read_subdev
that was initialized during the attach. Use that instead of accessing
the dev->subdevices[] array directly.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index 45a6e37744e1..2ad9a80765f7 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -205,7 +205,7 @@ static irqreturn_t ni6527_interrupt(int irq, void *d)
 {
 	struct comedi_device *dev = d;
 	struct ni6527_private *devpriv = dev->private;
-	struct comedi_subdevice *s = &dev->subdevices[2];
+	struct comedi_subdevice *s = dev->read_subdev;
 	unsigned int status;
 
 	status = readb(devpriv->mite->daq_io_addr + Change_Status);
-- 
cgit 


From 8d7d72cc016c82a1dfb3a0e94dbe893d47b67320 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:11:39 -0700
Subject: staging: comedi: ni_6527: tidy up ni6527_interrupt()

Rename the CamelCase defines used for the interrupt status register.

The NI6527_STATUS_IRQ bit will be set whenever the device is asserting
an interrupt. Modify the function a bit so this is the only requirement
for the interrupt to be IRQ_HANDLED. Currently an OVERFLOW interrupt is
not handled, though it's unlikely this would occur without an EDGE
interrupt.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 27 ++++++++++++++-------------
 1 file changed, 14 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index 2ad9a80765f7..8718aaae7d2c 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -54,11 +54,10 @@ Updated: Sat, 25 Jan 2003 13:24:40 -0800
 
 #define NI6527_FILT_INTERVAL_REG(x)	(0x08 + (x))
 #define NI6527_FILT_ENA_REG(x)		(0x0c + (x))
-
-#define Change_Status				0x14
-#define MasterInterruptStatus		0x04
-#define Overflow			0x02
-#define EdgeStatus			0x01
+#define NI6527_STATUS_REG		0x14
+#define NI6527_STATUS_IRQ		(1 << 2)
+#define NI6527_STATUS_OVERFLOW		(1 << 1)
+#define NI6527_STATUS_EDGE		(1 << 0)
 
 #define Master_Interrupt_Control		0x15
 #define FallingEdgeIntEnable		0x10
@@ -206,20 +205,22 @@ static irqreturn_t ni6527_interrupt(int irq, void *d)
 	struct comedi_device *dev = d;
 	struct ni6527_private *devpriv = dev->private;
 	struct comedi_subdevice *s = dev->read_subdev;
+	void __iomem *mmio = devpriv->mite->daq_io_addr;
 	unsigned int status;
 
-	status = readb(devpriv->mite->daq_io_addr + Change_Status);
-	if ((status & MasterInterruptStatus) == 0)
-		return IRQ_NONE;
-	if ((status & EdgeStatus) == 0)
+	status = readb(mmio + NI6527_STATUS_REG);
+	if (!(status & NI6527_STATUS_IRQ))
 		return IRQ_NONE;
 
+	if (status & NI6527_STATUS_EDGE) {
+		comedi_buf_put(s->async, 0);
+		s->async->events |= COMEDI_CB_EOS;
+		comedi_event(dev, s);
+	}
+
 	writeb(ClrEdge | ClrOverflow,
-	       devpriv->mite->daq_io_addr + Clear_Register);
+	       mmio + Clear_Register);
 
-	comedi_buf_put(s->async, 0);
-	s->async->events |= COMEDI_CB_EOS;
-	comedi_event(dev, s);
 	return IRQ_HANDLED;
 }
 
-- 
cgit 


From 73261fc0de10b7fcfe6f9d0614f9ce0ee15dbad6 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:11:58 -0700
Subject: staging: comedi: ni_6527: rename CamelCase defines for the clear
 register

Rename the CamelCase defines used for the clear register.

To clarify the code a bit, add two new defines that group the bits needed
to clear the interrupts and reset the digital input deglitch filter.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 27 +++++++++++++--------------
 1 file changed, 13 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index 8718aaae7d2c..5be2bf5d1158 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -45,13 +45,13 @@ Updated: Sat, 25 Jan 2003 13:24:40 -0800
 #define NI6527_DI_REG(x)		(0x00 + (x))
 #define NI6527_DO_REG(x)		(0x03 + (x))
 #define NI6527_ID_REG			0x06
-
-#define Clear_Register				0x07
-#define ClrEdge				0x08
-#define ClrOverflow			0x04
-#define ClrFilter			0x02
-#define ClrInterval			0x01
-
+#define NI6527_CLR_REG			0x07
+#define NI6527_CLR_EDGE			(1 << 3)
+#define NI6527_CLR_OVERFLOW		(1 << 2)
+#define NI6527_CLR_FILT			(1 << 1)
+#define NI6527_CLR_INTERVAL		(1 << 0)
+#define NI6527_CLR_IRQS			(NI6527_CLR_EDGE | NI6527_CLR_OVERFLOW)
+#define NI6527_CLR_RESET_FILT		(NI6527_CLR_FILT | NI6527_CLR_INTERVAL)
 #define NI6527_FILT_INTERVAL_REG(x)	(0x08 + (x))
 #define NI6527_FILT_ENA_REG(x)		(0x0c + (x))
 #define NI6527_STATUS_REG		0x14
@@ -104,7 +104,7 @@ static void ni6527_set_filter_interval(struct comedi_device *dev,
 		writeb((val >> 8) & 0xff, mmio + NI6527_FILT_INTERVAL_REG(1));
 		writeb((val >> 16) & 0x0f, mmio + NI6527_FILT_INTERVAL_REG(2));
 
-		writeb(ClrInterval, mmio + Clear_Register);
+		writeb(NI6527_CLR_INTERVAL, mmio + NI6527_CLR_REG);
 
 		devpriv->filter_interval = val;
 	}
@@ -218,8 +218,7 @@ static irqreturn_t ni6527_interrupt(int irq, void *d)
 		comedi_event(dev, s);
 	}
 
-	writeb(ClrEdge | ClrOverflow,
-	       mmio + Clear_Register);
+	writeb(NI6527_CLR_IRQS, mmio + NI6527_CLR_REG);
 
 	return IRQ_HANDLED;
 }
@@ -272,8 +271,8 @@ static int ni6527_intr_cmd(struct comedi_device *dev,
 	struct ni6527_private *devpriv = dev->private;
 	/* struct comedi_cmd *cmd = &s->async->cmd; */
 
-	writeb(ClrEdge | ClrOverflow,
-	       devpriv->mite->daq_io_addr + Clear_Register);
+	writeb(NI6527_CLR_IRQS,
+	       devpriv->mite->daq_io_addr + NI6527_CLR_REG);
 	writeb(FallingEdgeIntEnable | RisingEdgeIntEnable |
 	       MasterInterruptEnable | EdgeIntEnable,
 	       devpriv->mite->daq_io_addr + Master_Interrupt_Control);
@@ -401,8 +400,8 @@ static int ni6527_auto_attach(struct comedi_device *dev,
 
 	ni6527_set_filter_enable(dev, 0);
 
-	writeb(ClrEdge | ClrOverflow | ClrFilter | ClrInterval,
-	       devpriv->mite->daq_io_addr + Clear_Register);
+	writeb(NI6527_CLR_IRQS | NI6527_CLR_RESET_FILT,
+	       devpriv->mite->daq_io_addr + NI6527_CLR_REG);
 	writeb(0x00, devpriv->mite->daq_io_addr + Master_Interrupt_Control);
 
 	ret = request_irq(mite_irq(devpriv->mite), ni6527_interrupt,
-- 
cgit 


From cd3295a9d4feb1fdf3e7387ba3cd30d519b6afc7 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:12:19 -0700
Subject: staging: comedi: ni_6527: rename CamelCase defines for the control
 register

Rename the CamelCase defines used for the interrupt control register.

To clarify the code a bit, add two new defines to enable/disable the
interrupts.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 32 ++++++++++++++++++--------------
 1 file changed, 18 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index 5be2bf5d1158..5ca6d8930904 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -58,13 +58,16 @@ Updated: Sat, 25 Jan 2003 13:24:40 -0800
 #define NI6527_STATUS_IRQ		(1 << 2)
 #define NI6527_STATUS_OVERFLOW		(1 << 1)
 #define NI6527_STATUS_EDGE		(1 << 0)
-
-#define Master_Interrupt_Control		0x15
-#define FallingEdgeIntEnable		0x10
-#define RisingEdgeIntEnable		0x08
-#define MasterInterruptEnable		0x04
-#define OverflowIntEnable		0x02
-#define EdgeIntEnable			0x01
+#define NI6527_CTRL_REG			0x15
+#define NI6527_CTRL_FALLING		(1 << 4)
+#define NI6527_CTRL_RISING		(1 << 3)
+#define NI6527_CTRL_IRQ			(1 << 2)
+#define NI6527_CTRL_OVERFLOW		(1 << 1)
+#define NI6527_CTRL_EDGE		(1 << 0)
+#define NI6527_CTRL_DISABLE_IRQS	0
+#define NI6527_CTRL_ENABLE_IRQS		(NI6527_CTRL_FALLING | \
+					 NI6527_CTRL_RISING | \
+					 NI6527_CTRL_IRQ | NI6527_CTRL_EDGE)
 
 #define Rising_Edge_Detection_Enable(x)		(0x018+(x))
 #define Falling_Edge_Detection_Enable(x)	(0x020+(x))
@@ -273,9 +276,8 @@ static int ni6527_intr_cmd(struct comedi_device *dev,
 
 	writeb(NI6527_CLR_IRQS,
 	       devpriv->mite->daq_io_addr + NI6527_CLR_REG);
-	writeb(FallingEdgeIntEnable | RisingEdgeIntEnable |
-	       MasterInterruptEnable | EdgeIntEnable,
-	       devpriv->mite->daq_io_addr + Master_Interrupt_Control);
+	writeb(NI6527_CTRL_ENABLE_IRQS,
+	       devpriv->mite->daq_io_addr + NI6527_CTRL_REG);
 
 	return 0;
 }
@@ -285,7 +287,8 @@ static int ni6527_intr_cancel(struct comedi_device *dev,
 {
 	struct ni6527_private *devpriv = dev->private;
 
-	writeb(0x00, devpriv->mite->daq_io_addr + Master_Interrupt_Control);
+	writeb(NI6527_CTRL_DISABLE_IRQS,
+	       devpriv->mite->daq_io_addr + NI6527_CTRL_REG);
 
 	return 0;
 }
@@ -402,7 +405,8 @@ static int ni6527_auto_attach(struct comedi_device *dev,
 
 	writeb(NI6527_CLR_IRQS | NI6527_CLR_RESET_FILT,
 	       devpriv->mite->daq_io_addr + NI6527_CLR_REG);
-	writeb(0x00, devpriv->mite->daq_io_addr + Master_Interrupt_Control);
+	writeb(NI6527_CTRL_DISABLE_IRQS,
+	       devpriv->mite->daq_io_addr + NI6527_CTRL_REG);
 
 	ret = request_irq(mite_irq(devpriv->mite), ni6527_interrupt,
 			  IRQF_SHARED, dev->board_name, dev);
@@ -419,8 +423,8 @@ static void ni6527_detach(struct comedi_device *dev)
 	struct ni6527_private *devpriv = dev->private;
 
 	if (devpriv && devpriv->mite && devpriv->mite->daq_io_addr)
-		writeb(0x00,
-		       devpriv->mite->daq_io_addr + Master_Interrupt_Control);
+		writeb(NI6527_CTRL_DISABLE_IRQS,
+		       devpriv->mite->daq_io_addr + NI6527_CTRL_REG);
 	if (dev->irq)
 		free_irq(dev->irq, dev);
 	if (devpriv && devpriv->mite) {
-- 
cgit 


From 633b56539c0fd7847054e70e51851cb001d10a25 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:12:35 -0700
Subject: staging: comedi: ni_6527: tidy up ni6527_intr_cmd()

For aesthetics, use a local variable for the __iomem base address
used to write to the registers.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index 5ca6d8930904..c1b281b1a8a0 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -272,12 +272,10 @@ static int ni6527_intr_cmd(struct comedi_device *dev,
 			   struct comedi_subdevice *s)
 {
 	struct ni6527_private *devpriv = dev->private;
-	/* struct comedi_cmd *cmd = &s->async->cmd; */
+	void __iomem *mmio = devpriv->mite->daq_io_addr;
 
-	writeb(NI6527_CLR_IRQS,
-	       devpriv->mite->daq_io_addr + NI6527_CLR_REG);
-	writeb(NI6527_CTRL_ENABLE_IRQS,
-	       devpriv->mite->daq_io_addr + NI6527_CTRL_REG);
+	writeb(NI6527_CLR_IRQS, mmio + NI6527_CLR_REG);
+	writeb(NI6527_CTRL_ENABLE_IRQS, mmio + NI6527_CTRL_REG);
 
 	return 0;
 }
-- 
cgit 


From c16a4d69f07b992acb2f1a4dfcd5d4d1b6784f4a Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:12:55 -0700
Subject: staging: comedi: ni_6527: tidy up ni6527_intr_cancel()

For aesthetics, use a local variable for the __iomem base address
used to write to the registers.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index c1b281b1a8a0..f2f884339ac5 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -284,9 +284,9 @@ static int ni6527_intr_cancel(struct comedi_device *dev,
 			      struct comedi_subdevice *s)
 {
 	struct ni6527_private *devpriv = dev->private;
+	void __iomem *mmio = devpriv->mite->daq_io_addr;
 
-	writeb(NI6527_CTRL_DISABLE_IRQS,
-	       devpriv->mite->daq_io_addr + NI6527_CTRL_REG);
+	writeb(NI6527_CTRL_DISABLE_IRQS, mmio + NI6527_CTRL_REG);
 
 	return 0;
 }
-- 
cgit 


From e1eb3605284e11b415a897f7c1cb01319a250a5a Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:13:14 -0700
Subject: staging: comedi: ni_6527: tidy up ni6527_intr_insn_config()

Handle the instruction (data[0]) with a switch to make it easier
to add additional instructions in the future.

To clarify the code, factor out the code that sets the rising/falling
edge detection.

Rename the CamelCase defines used for the rising/falling edge detection
registers.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 56 ++++++++++++++++++--------------
 1 file changed, 32 insertions(+), 24 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index f2f884339ac5..7374f0c7fd8b 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -68,9 +68,8 @@ Updated: Sat, 25 Jan 2003 13:24:40 -0800
 #define NI6527_CTRL_ENABLE_IRQS		(NI6527_CTRL_FALLING | \
 					 NI6527_CTRL_RISING | \
 					 NI6527_CTRL_IRQ | NI6527_CTRL_EDGE)
-
-#define Rising_Edge_Detection_Enable(x)		(0x018+(x))
-#define Falling_Edge_Detection_Enable(x)	(0x020+(x))
+#define NI6527_RISING_EDGE_REG(x)	(0x18 + (x))
+#define NI6527_FALLING_EDGE_REG(x)	(0x20 + (x))
 
 enum ni6527_boardid {
 	BOARD_PCI6527,
@@ -299,32 +298,41 @@ static int ni6527_intr_insn_bits(struct comedi_device *dev,
 	return insn->n;
 }
 
-static int ni6527_intr_insn_config(struct comedi_device *dev,
-				   struct comedi_subdevice *s,
-				   struct comedi_insn *insn, unsigned int *data)
+static void ni6527_set_edge_detection(struct comedi_device *dev,
+				      unsigned int rising,
+				      unsigned int falling)
 {
 	struct ni6527_private *devpriv = dev->private;
+	void __iomem *mmio = devpriv->mite->daq_io_addr;
 
-	if (insn->n < 1)
-		return -EINVAL;
-	if (data[0] != INSN_CONFIG_CHANGE_NOTIFY)
+	/* enable rising-edge detection channels */
+	writeb(rising & 0xff, mmio + NI6527_RISING_EDGE_REG(0));
+	writeb((rising >> 8) & 0xff, mmio + NI6527_RISING_EDGE_REG(1));
+	writeb((rising >> 16) & 0xff, mmio + NI6527_RISING_EDGE_REG(2));
+
+	/* enable falling-edge detection channels */
+	writeb(falling & 0xff, mmio + NI6527_FALLING_EDGE_REG(0));
+	writeb((falling >> 8) & 0xff, mmio + NI6527_FALLING_EDGE_REG(1));
+	writeb((falling >> 16) & 0xff, mmio + NI6527_FALLING_EDGE_REG(2));
+}
+
+static int ni6527_intr_insn_config(struct comedi_device *dev,
+				   struct comedi_subdevice *s,
+				   struct comedi_insn *insn,
+				   unsigned int *data)
+{
+	switch (data[0]) {
+	case INSN_CONFIG_CHANGE_NOTIFY:
+		/* check_insn_config_length() does not check this instruction */
+		if (insn->n != 3)
+			return -EINVAL;
+		ni6527_set_edge_detection(dev, data[1], data[2]);
+		break;
+	default:
 		return -EINVAL;
+	}
 
-	writeb(data[1],
-	       devpriv->mite->daq_io_addr + Rising_Edge_Detection_Enable(0));
-	writeb(data[1] >> 8,
-	       devpriv->mite->daq_io_addr + Rising_Edge_Detection_Enable(1));
-	writeb(data[1] >> 16,
-	       devpriv->mite->daq_io_addr + Rising_Edge_Detection_Enable(2));
-
-	writeb(data[2],
-	       devpriv->mite->daq_io_addr + Falling_Edge_Detection_Enable(0));
-	writeb(data[2] >> 8,
-	       devpriv->mite->daq_io_addr + Falling_Edge_Detection_Enable(1));
-	writeb(data[2] >> 16,
-	       devpriv->mite->daq_io_addr + Falling_Edge_Detection_Enable(2));
-
-	return 2;
+	return insn->n;
 }
 
 static int ni6527_auto_attach(struct comedi_device *dev,
-- 
cgit 


From 42e705e91f98637a6891eaf8a5c8dcce477b6378 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:13:32 -0700
Subject: staging: comedi: ni_6527: remove COMEDI_MITE dependancy

The COMEDI_MITE driver is a wrapper for the National Instruments
PCI MITE ASIC. This driver includes the PCI boilerplate used to
remap the resources as well as the support code for bus mastered
DMA.

The ni_6527 does not support DMA and the COMEDI_MITE driver adds
unnecessary complexity.

Remove the need for the COMEDI_MITE driver by handling the ioremap
directly in the (*attach). Store the ioremap'ed address in the
private data.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/Kconfig           |  2 --
 drivers/staging/comedi/drivers/ni_6527.c | 47 ++++++++++++--------------------
 2 files changed, 18 insertions(+), 31 deletions(-)

diff --git a/drivers/staging/comedi/Kconfig b/drivers/staging/comedi/Kconfig
index 24f3cf273e5b..bfa27e7fc016 100644
--- a/drivers/staging/comedi/Kconfig
+++ b/drivers/staging/comedi/Kconfig
@@ -991,8 +991,6 @@ config COMEDI_ME_DAQ
 
 config COMEDI_NI_6527
 	tristate "NI 6527 support"
-	depends on HAS_DMA
-	select COMEDI_MITE
 	---help---
 	  Enable support for the National Instruments 6527 PCI card
 
diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index 7374f0c7fd8b..59f6885b6edc 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -40,7 +40,6 @@ Updated: Sat, 25 Jan 2003 13:24:40 -0800
 #include "../comedidev.h"
 
 #include "comedi_fc.h"
-#include "mite.h"
 
 #define NI6527_DI_REG(x)		(0x00 + (x))
 #define NI6527_DO_REG(x)		(0x03 + (x))
@@ -90,7 +89,7 @@ static const struct ni6527_board ni6527_boards[] = {
 };
 
 struct ni6527_private {
-	struct mite_struct *mite;
+	void __iomem *mmio_base;
 	unsigned int filter_interval;
 	unsigned int filter_enable;
 };
@@ -99,7 +98,7 @@ static void ni6527_set_filter_interval(struct comedi_device *dev,
 				       unsigned int val)
 {
 	struct ni6527_private *devpriv = dev->private;
-	void __iomem *mmio = devpriv->mite->daq_io_addr;
+	void __iomem *mmio = devpriv->mmio_base;
 
 	if (val != devpriv->filter_interval) {
 		writeb(val & 0xff, mmio + NI6527_FILT_INTERVAL_REG(0));
@@ -116,7 +115,7 @@ static void ni6527_set_filter_enable(struct comedi_device *dev,
 				     unsigned int val)
 {
 	struct ni6527_private *devpriv = dev->private;
-	void __iomem *mmio = devpriv->mite->daq_io_addr;
+	void __iomem *mmio = devpriv->mmio_base;
 
 	writeb(val & 0xff, mmio + NI6527_FILT_ENA_REG(0));
 	writeb((val >> 8) & 0xff, mmio + NI6527_FILT_ENA_REG(1));
@@ -163,7 +162,7 @@ static int ni6527_di_insn_bits(struct comedi_device *dev,
 			       unsigned int *data)
 {
 	struct ni6527_private *devpriv = dev->private;
-	void __iomem *mmio = devpriv->mite->daq_io_addr;
+	void __iomem *mmio = devpriv->mmio_base;
 	unsigned int val;
 
 	val = readb(mmio + NI6527_DI_REG(0));
@@ -181,7 +180,7 @@ static int ni6527_do_insn_bits(struct comedi_device *dev,
 			       unsigned int *data)
 {
 	struct ni6527_private *devpriv = dev->private;
-	void __iomem *mmio = devpriv->mite->daq_io_addr;
+	void __iomem *mmio = devpriv->mmio_base;
 	unsigned int mask;
 
 	mask = comedi_dio_update_state(s, data);
@@ -207,7 +206,7 @@ static irqreturn_t ni6527_interrupt(int irq, void *d)
 	struct comedi_device *dev = d;
 	struct ni6527_private *devpriv = dev->private;
 	struct comedi_subdevice *s = dev->read_subdev;
-	void __iomem *mmio = devpriv->mite->daq_io_addr;
+	void __iomem *mmio = devpriv->mmio_base;
 	unsigned int status;
 
 	status = readb(mmio + NI6527_STATUS_REG);
@@ -271,7 +270,7 @@ static int ni6527_intr_cmd(struct comedi_device *dev,
 			   struct comedi_subdevice *s)
 {
 	struct ni6527_private *devpriv = dev->private;
-	void __iomem *mmio = devpriv->mite->daq_io_addr;
+	void __iomem *mmio = devpriv->mmio_base;
 
 	writeb(NI6527_CLR_IRQS, mmio + NI6527_CLR_REG);
 	writeb(NI6527_CTRL_ENABLE_IRQS, mmio + NI6527_CTRL_REG);
@@ -283,7 +282,7 @@ static int ni6527_intr_cancel(struct comedi_device *dev,
 			      struct comedi_subdevice *s)
 {
 	struct ni6527_private *devpriv = dev->private;
-	void __iomem *mmio = devpriv->mite->daq_io_addr;
+	void __iomem *mmio = devpriv->mmio_base;
 
 	writeb(NI6527_CTRL_DISABLE_IRQS, mmio + NI6527_CTRL_REG);
 
@@ -303,7 +302,7 @@ static void ni6527_set_edge_detection(struct comedi_device *dev,
 				      unsigned int falling)
 {
 	struct ni6527_private *devpriv = dev->private;
-	void __iomem *mmio = devpriv->mite->daq_io_addr;
+	void __iomem *mmio = devpriv->mmio_base;
 
 	/* enable rising-edge detection channels */
 	writeb(rising & 0xff, mmio + NI6527_RISING_EDGE_REG(0));
@@ -359,18 +358,12 @@ static int ni6527_auto_attach(struct comedi_device *dev,
 	if (!devpriv)
 		return -ENOMEM;
 
-	devpriv->mite = mite_alloc(pcidev);
-	if (!devpriv->mite)
+	devpriv->mmio_base = pci_ioremap_bar(pcidev, 1);
+	if (!devpriv->mmio_base)
 		return -ENOMEM;
 
-	ret = mite_setup(devpriv->mite);
-	if (ret < 0) {
-		dev_err(dev->class_dev, "error setting up mite\n");
-		return ret;
-	}
-
 	/* make sure this is actually a 6527 device */
-	if (readb(devpriv->mite->daq_io_addr + NI6527_ID_REG) != 0x27)
+	if (readb(devpriv->mmio_base + NI6527_ID_REG) != 0x27)
 		return -ENODEV;
 
 	ret = comedi_alloc_subdevices(dev, 3);
@@ -410,16 +403,16 @@ static int ni6527_auto_attach(struct comedi_device *dev,
 	ni6527_set_filter_enable(dev, 0);
 
 	writeb(NI6527_CLR_IRQS | NI6527_CLR_RESET_FILT,
-	       devpriv->mite->daq_io_addr + NI6527_CLR_REG);
+	       devpriv->mmio_base + NI6527_CLR_REG);
 	writeb(NI6527_CTRL_DISABLE_IRQS,
-	       devpriv->mite->daq_io_addr + NI6527_CTRL_REG);
+	       devpriv->mmio_base + NI6527_CTRL_REG);
 
-	ret = request_irq(mite_irq(devpriv->mite), ni6527_interrupt,
+	ret = request_irq(pcidev->irq, ni6527_interrupt,
 			  IRQF_SHARED, dev->board_name, dev);
 	if (ret < 0)
 		dev_warn(dev->class_dev, "irq not available\n");
 	else
-		dev->irq = mite_irq(devpriv->mite);
+		dev->irq = pcidev->irq;
 
 	return 0;
 }
@@ -428,15 +421,11 @@ static void ni6527_detach(struct comedi_device *dev)
 {
 	struct ni6527_private *devpriv = dev->private;
 
-	if (devpriv && devpriv->mite && devpriv->mite->daq_io_addr)
+	if (devpriv && devpriv->mmio_base)
 		writeb(NI6527_CTRL_DISABLE_IRQS,
-		       devpriv->mite->daq_io_addr + NI6527_CTRL_REG);
+		       devpriv->mmio_base + NI6527_CTRL_REG);
 	if (dev->irq)
 		free_irq(dev->irq, dev);
-	if (devpriv && devpriv->mite) {
-		mite_unsetup(devpriv->mite);
-		mite_free(devpriv->mite);
-	}
 	comedi_pci_disable(dev);
 }
 
-- 
cgit 


From 5dfbd5051c59b5527363f862998175f7aa21d11b Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:13:48 -0700
Subject: staging: comedi: ni_6527: introduce ni6527_reset()

Factor the board reset code out of the (*attach). Do the reset as
soon as possible to ensure the interrupts are disabled.

For convienence, use the ni6257_reset() during the (*detach) instead
of just disabling the interrupts.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 25 ++++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index 59f6885b6edc..7ad8a4ba55e6 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -334,6 +334,19 @@ static int ni6527_intr_insn_config(struct comedi_device *dev,
 	return insn->n;
 }
 
+static void ni6527_reset(struct comedi_device *dev)
+{
+	struct ni6527_private *devpriv = dev->private;
+	void __iomem *mmio = devpriv->mmio_base;
+
+	/* disable deglitch filters on all channels */
+	ni6527_set_filter_enable(dev, 0);
+
+	writeb(NI6527_CLR_IRQS | NI6527_CLR_RESET_FILT,
+	       mmio + NI6527_CLR_REG);
+	writeb(NI6527_CTRL_DISABLE_IRQS, mmio + NI6527_CTRL_REG);
+}
+
 static int ni6527_auto_attach(struct comedi_device *dev,
 			      unsigned long context)
 {
@@ -366,6 +379,8 @@ static int ni6527_auto_attach(struct comedi_device *dev,
 	if (readb(devpriv->mmio_base + NI6527_ID_REG) != 0x27)
 		return -ENODEV;
 
+	ni6527_reset(dev);
+
 	ret = comedi_alloc_subdevices(dev, 3);
 	if (ret)
 		return ret;
@@ -400,13 +415,6 @@ static int ni6527_auto_attach(struct comedi_device *dev,
 	s->insn_bits = ni6527_intr_insn_bits;
 	s->insn_config = ni6527_intr_insn_config;
 
-	ni6527_set_filter_enable(dev, 0);
-
-	writeb(NI6527_CLR_IRQS | NI6527_CLR_RESET_FILT,
-	       devpriv->mmio_base + NI6527_CLR_REG);
-	writeb(NI6527_CTRL_DISABLE_IRQS,
-	       devpriv->mmio_base + NI6527_CTRL_REG);
-
 	ret = request_irq(pcidev->irq, ni6527_interrupt,
 			  IRQF_SHARED, dev->board_name, dev);
 	if (ret < 0)
@@ -422,8 +430,7 @@ static void ni6527_detach(struct comedi_device *dev)
 	struct ni6527_private *devpriv = dev->private;
 
 	if (devpriv && devpriv->mmio_base)
-		writeb(NI6527_CTRL_DISABLE_IRQS,
-		       devpriv->mmio_base + NI6527_CTRL_REG);
+		ni6527_reset(dev);
 	if (dev->irq)
 		free_irq(dev->irq, dev);
 	comedi_pci_disable(dev);
-- 
cgit 


From 21799633d65afb769cbe36458a15425aa91b15af Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:14:07 -0700
Subject: staging: comedi: ni_6527: tidy up the interrupt subdevice

Do the request_irq() before setting up the subdevices. Only initialize
the interrupt subdevice if the irq is actually available.

Tidy up the whitespace in the subdevice init.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 39 +++++++++++++++++---------------
 1 file changed, 21 insertions(+), 18 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index 7ad8a4ba55e6..af35b78239a5 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -381,6 +381,11 @@ static int ni6527_auto_attach(struct comedi_device *dev,
 
 	ni6527_reset(dev);
 
+	ret = request_irq(pcidev->irq, ni6527_interrupt, IRQF_SHARED,
+			  dev->board_name, dev);
+	if (ret == 0)
+		dev->irq = pcidev->irq;
+
 	ret = comedi_alloc_subdevices(dev, 3);
 	if (ret)
 		return ret;
@@ -402,25 +407,23 @@ static int ni6527_auto_attach(struct comedi_device *dev,
 	s->maxdata = 1;
 	s->insn_bits = ni6527_do_insn_bits;
 
+	/* Edge detection interrupt subdevice */
 	s = &dev->subdevices[2];
-	dev->read_subdev = s;
-	s->type = COMEDI_SUBD_DI;
-	s->subdev_flags = SDF_READABLE | SDF_CMD_READ;
-	s->n_chan = 1;
-	s->range_table = &range_unknown;
-	s->maxdata = 1;
-	s->do_cmdtest = ni6527_intr_cmdtest;
-	s->do_cmd = ni6527_intr_cmd;
-	s->cancel = ni6527_intr_cancel;
-	s->insn_bits = ni6527_intr_insn_bits;
-	s->insn_config = ni6527_intr_insn_config;
-
-	ret = request_irq(pcidev->irq, ni6527_interrupt,
-			  IRQF_SHARED, dev->board_name, dev);
-	if (ret < 0)
-		dev_warn(dev->class_dev, "irq not available\n");
-	else
-		dev->irq = pcidev->irq;
+	if (dev->irq) {
+		dev->read_subdev = s;
+		s->type		= COMEDI_SUBD_DI;
+		s->subdev_flags	= SDF_READABLE | SDF_CMD_READ;
+		s->n_chan	= 1;
+		s->maxdata	= 1;
+		s->range_table	= &range_digital;
+		s->insn_config	= ni6527_intr_insn_config;
+		s->insn_bits	= ni6527_intr_insn_bits;
+		s->do_cmdtest	= ni6527_intr_cmdtest;
+		s->do_cmd	= ni6527_intr_cmd;
+		s->cancel	= ni6527_intr_cancel;
+	} else {
+		s->type = COMEDI_SUBD_UNUSED;
+	}
 
 	return 0;
 }
-- 
cgit 


From ea19a2a720d9d9f1b38f8916fe8f2a01101bc6ce Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:14:27 -0700
Subject: staging: comedi: ni_6527: tidy up ni6527_auto_attach()

For aesthetics, allocate the private data memory before attempting
to enable the PCI device.

Add some whitespace to the subdevice init.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 38 +++++++++++++++++---------------
 1 file changed, 20 insertions(+), 18 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index af35b78239a5..d216287ce8b3 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -363,14 +363,14 @@ static int ni6527_auto_attach(struct comedi_device *dev,
 	dev->board_ptr = board;
 	dev->board_name = board->name;
 
-	ret = comedi_pci_enable(dev);
-	if (ret)
-		return ret;
-
 	devpriv = comedi_alloc_devpriv(dev, sizeof(*devpriv));
 	if (!devpriv)
 		return -ENOMEM;
 
+	ret = comedi_pci_enable(dev);
+	if (ret)
+		return ret;
+
 	devpriv->mmio_base = pci_ioremap_bar(pcidev, 1);
 	if (!devpriv->mmio_base)
 		return -ENOMEM;
@@ -390,22 +390,24 @@ static int ni6527_auto_attach(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
+	/* Digital Input subdevice */
 	s = &dev->subdevices[0];
-	s->type = COMEDI_SUBD_DI;
-	s->subdev_flags = SDF_READABLE;
-	s->n_chan = 24;
-	s->range_table = &range_digital;
-	s->maxdata = 1;
-	s->insn_config = ni6527_di_insn_config;
-	s->insn_bits = ni6527_di_insn_bits;
-
+	s->type		= COMEDI_SUBD_DI;
+	s->subdev_flags	= SDF_READABLE;
+	s->n_chan	= 24;
+	s->maxdata	= 1;
+	s->range_table	= &range_digital;
+	s->insn_config	= ni6527_di_insn_config;
+	s->insn_bits	= ni6527_di_insn_bits;
+
+	/* Digital Output subdevice */
 	s = &dev->subdevices[1];
-	s->type = COMEDI_SUBD_DO;
-	s->subdev_flags = SDF_READABLE | SDF_WRITABLE;
-	s->n_chan = 24;
-	s->range_table = &range_unknown;  /* FIXME: actually conductance */
-	s->maxdata = 1;
-	s->insn_bits = ni6527_do_insn_bits;
+	s->type		= COMEDI_SUBD_DO;
+	s->subdev_flags	= SDF_WRITABLE;
+	s->n_chan	= 24;
+	s->maxdata	= 1;
+	s->range_table	= &range_digital;
+	s->insn_bits	= ni6527_do_insn_bits;
 
 	/* Edge detection interrupt subdevice */
 	s = &dev->subdevices[2];
-- 
cgit 


From 903ac7a2aa54bb35213a17bd773239282fba4882 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:14:46 -0700
Subject: staging: comedi: ni_6527: tidy up the comedi_driver declaration

For aesthetics, add some whitespace.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index d216287ce8b3..67ecf7b36669 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -442,10 +442,10 @@ static void ni6527_detach(struct comedi_device *dev)
 }
 
 static struct comedi_driver ni6527_driver = {
-	.driver_name = "ni_6527",
-	.module = THIS_MODULE,
-	.auto_attach = ni6527_auto_attach,
-	.detach = ni6527_detach,
+	.driver_name	= "ni_6527",
+	.module		= THIS_MODULE,
+	.auto_attach	= ni6527_auto_attach,
+	.detach		= ni6527_detach,
 };
 
 static int ni6527_pci_probe(struct pci_dev *dev,
-- 
cgit 


From 17d309819a0430fab74e977ace2e53c623ac393d Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:15:03 -0700
Subject: staging: comedi: ni_6527: tidy up multi-line comments

Tidy up the multi-line comments to follow the CodingStyle.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 61 ++++++++++++++++----------------
 1 file changed, 31 insertions(+), 30 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index 67ecf7b36669..b55942a60a73 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -1,36 +1,31 @@
 /*
-    comedi/drivers/ni_6527.c
-    driver for National Instruments PCI-6527
-
-    COMEDI - Linux Control and Measurement Device Interface
-    Copyright (C) 1999,2002,2003 David A. Schleef <ds@schleef.org>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-*/
-/*
-Driver: ni_6527
-Description: National Instruments 6527
-Author: ds
-Status: works
-Devices: [National Instruments] PCI-6527 (ni6527), PXI-6527
-Updated: Sat, 25 Jan 2003 13:24:40 -0800
-
-
-*/
+ * ni_6527.c
+ * Comedi driver for National Instruments PCI-6527
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 1999,2002,2003 David A. Schleef <ds@schleef.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
 
 /*
-   Manuals (available from ftp://ftp.natinst.com/support/manuals)
-
-	370106b.pdf	6527 Register Level Programmer Manual
-
+ * Driver: ni_6527
+ * Description: National Instruments 6527
+ * Devices: (National Instruments) PCI-6527 [pci-6527]
+ *          (National Instruments) PXI-6527 [pxi-6527]
+ * Author: David A. Schleef <ds@schleef.org>
+ * Updated: Sat, 25 Jan 2003 13:24:40 -0800
+ * Status: works
+ *
+ * Configuration Options: not applicable, uses PCI auto config
  */
 
 #include <linux/module.h>
@@ -41,6 +36,12 @@ Updated: Sat, 25 Jan 2003 13:24:40 -0800
 
 #include "comedi_fc.h"
 
+/*
+ * PCI BAR1 - Register memory map
+ *
+ * Manuals (available from ftp://ftp.natinst.com/support/manuals)
+ *	370106b.pdf	6527 Register Level Programmer Manual
+ */
 #define NI6527_DI_REG(x)		(0x00 + (x))
 #define NI6527_DO_REG(x)		(0x03 + (x))
 #define NI6527_ID_REG			0x06
-- 
cgit 


From 8159fd1be0f04c3cf11098942f277dc0f1239159 Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hsweeten@visionengravers.com>
Date: Tue, 1 Oct 2013 15:15:21 -0700
Subject: staging: comedi: ni_6527: change MODULE_DESCRIPTION

Change the MODULE_DESCRIPTION to something useful instead of the
generic "Comedi low-level driver".

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_6527.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/ni_6527.c b/drivers/staging/comedi/drivers/ni_6527.c
index b55942a60a73..85aa9609d6a2 100644
--- a/drivers/staging/comedi/drivers/ni_6527.c
+++ b/drivers/staging/comedi/drivers/ni_6527.c
@@ -471,5 +471,5 @@ static struct pci_driver ni6527_pci_driver = {
 module_comedi_pci_driver(ni6527_driver, ni6527_pci_driver);
 
 MODULE_AUTHOR("Comedi http://www.comedi.org");
-MODULE_DESCRIPTION("Comedi low-level driver");
+MODULE_DESCRIPTION("Comedi driver for National Instruments PCI-6527");
 MODULE_LICENSE("GPL");
-- 
cgit 


From 96f817fedec48b59c9e8b22141cec4e56ad47913 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 3 Oct 2013 14:27:25 -0700
Subject: tcp: shrink tcp6_timewait_sock by one cache line

While working on tcp listener refactoring, I found that it
would really make things easier if sock_common could include
the IPv6 addresses needed in the lookups, instead of doing
very complex games to get their values (depending on sock
being SYN_RECV, ESTABLISHED, TIME_WAIT)

For this to happen, I need to be sure that tcp6_timewait_sock
and tcp_timewait_sock consume same number of cache lines.

This is possible if we only use 32bits for tw_ttd, as we remove
one 32bit hole in inet_timewait_sock

inet_tw_time_stamp() is defined and used, even if its current
implementation looks like tcp_time_stamp : We might need finer
resolution for tcp_time_stamp in the future.

Before patch : sizeof(struct tcp6_timewait_sock) = 0xc8

After patch : sizeof(struct tcp6_timewait_sock) = 0xc0

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/inet_timewait_sock.h | 7 ++++++-
 net/ipv4/inet_diag.c             | 6 +++---
 net/ipv4/inet_timewait_sock.c    | 4 ++--
 net/ipv6/tcp_ipv6.c              | 2 +-
 4 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h
index 48fd3561722c..f528d1b0ac95 100644
--- a/include/net/inet_timewait_sock.h
+++ b/include/net/inet_timewait_sock.h
@@ -58,6 +58,11 @@ struct inet_hashinfo;
 # define INET_TWDR_RECYCLE_TICK (12 + 2 - INET_TWDR_RECYCLE_SLOTS_LOG)
 #endif
 
+static inline u32 inet_tw_time_stamp(void)
+{
+	return jiffies;
+}
+
 /* TIME_WAIT reaping mechanism. */
 #define INET_TWDR_TWKILL_SLOTS	8 /* Please keep this a power of 2. */
 
@@ -130,7 +135,7 @@ struct inet_timewait_sock {
 				tw_tos		: 8,
 				tw_ipv6_offset  : 16;
 	kmemcheck_bitfield_end(flags);
-	unsigned long		tw_ttd;
+	u32			tw_ttd;
 	struct inet_bind_bucket	*tw_tb;
 	struct hlist_node	tw_death_node;
 };
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index 5f648751fce2..22000279efc8 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -222,7 +222,7 @@ static int inet_twsk_diag_fill(struct inet_timewait_sock *tw,
 			       u32 portid, u32 seq, u16 nlmsg_flags,
 			       const struct nlmsghdr *unlh)
 {
-	long tmo;
+	s32 tmo;
 	struct inet_diag_msg *r;
 	struct nlmsghdr *nlh;
 
@@ -234,7 +234,7 @@ static int inet_twsk_diag_fill(struct inet_timewait_sock *tw,
 	r = nlmsg_data(nlh);
 	BUG_ON(tw->tw_state != TCP_TIME_WAIT);
 
-	tmo = tw->tw_ttd - jiffies;
+	tmo = tw->tw_ttd - inet_tw_time_stamp();
 	if (tmo < 0)
 		tmo = 0;
 
@@ -248,7 +248,7 @@ static int inet_twsk_diag_fill(struct inet_timewait_sock *tw,
 	r->id.idiag_dst[0]    = tw->tw_daddr;
 	r->idiag_state	      = tw->tw_substate;
 	r->idiag_timer	      = 3;
-	r->idiag_expires      = DIV_ROUND_UP(tmo * 1000, HZ);
+	r->idiag_expires      = jiffies_to_msecs(tmo);
 	r->idiag_rqueue	      = 0;
 	r->idiag_wqueue	      = 0;
 	r->idiag_uid	      = 0;
diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c
index 1f27c9f4afd0..9bcd8f7234ec 100644
--- a/net/ipv4/inet_timewait_sock.c
+++ b/net/ipv4/inet_timewait_sock.c
@@ -387,11 +387,11 @@ void inet_twsk_schedule(struct inet_timewait_sock *tw,
 			if (slot >= INET_TWDR_TWKILL_SLOTS)
 				slot = INET_TWDR_TWKILL_SLOTS - 1;
 		}
-		tw->tw_ttd = jiffies + timeo;
+		tw->tw_ttd = inet_tw_time_stamp() + timeo;
 		slot = (twdr->slot + slot) & (INET_TWDR_TWKILL_SLOTS - 1);
 		list = &twdr->cells[slot];
 	} else {
-		tw->tw_ttd = jiffies + (slot << INET_TWDR_RECYCLE_TICK);
+		tw->tw_ttd = inet_tw_time_stamp() + (slot << INET_TWDR_RECYCLE_TICK);
 
 		if (twdr->twcal_hand < 0) {
 			twdr->twcal_hand = 0;
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 5c71501fc917..dde8bad04481 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1811,7 +1811,7 @@ static void get_timewait6_sock(struct seq_file *seq,
 	const struct in6_addr *dest, *src;
 	__u16 destp, srcp;
 	const struct inet6_timewait_sock *tw6 = inet6_twsk((struct sock *)tw);
-	long delta = tw->tw_ttd - jiffies;
+	s32 delta = tw->tw_ttd - inet_tw_time_stamp();
 
 	dest = &tw6->tw_v6_daddr;
 	src  = &tw6->tw_v6_rcv_saddr;
-- 
cgit 


From 3ad145b62a15c86150dd0cc229a39a3120d462f9 Mon Sep 17 00:00:00 2001
From: Huang Rui <ray.huang@amd.com>
Date: Thu, 3 Oct 2013 23:37:12 +0800
Subject: usb: ehci: use amd_chipset_type to filter for usb subsystem hang bug

Commit "usb: pci-quirks: refactor AMD quirk to abstract AMD chipset types"
introduced a new AMD chipset type to filter AMD platforms with different
chipsets.

According to a recent thread [1], this patch updates USB subsystem hang
symptom quirk which is observed on AMD all SB600 and SB700 revision
0x3a/0x3b. And make it use the new chipset type to represent.

[1] http://marc.info/?l=linux-usb&m=138012321616452&w=2

Signed-off-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-pci.c   | 24 ++++++------------------
 drivers/usb/host/pci-quirks.c | 13 +++++++++++++
 drivers/usb/host/pci-quirks.h |  1 +
 3 files changed, 20 insertions(+), 18 deletions(-)

diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 854c2ec7b699..3e86bf4371b3 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -58,8 +58,6 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
 {
 	struct ehci_hcd		*ehci = hcd_to_ehci(hcd);
 	struct pci_dev		*pdev = to_pci_dev(hcd->self.controller);
-	struct pci_dev		*p_smbus;
-	u8			rev;
 	u32			temp;
 	int			retval;
 
@@ -175,22 +173,12 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
 		/* SB600 and old version of SB700 have a bug in EHCI controller,
 		 * which causes usb devices lose response in some cases.
 		 */
-		if ((pdev->device == 0x4386) || (pdev->device == 0x4396)) {
-			p_smbus = pci_get_device(PCI_VENDOR_ID_ATI,
-						 PCI_DEVICE_ID_ATI_SBX00_SMBUS,
-						 NULL);
-			if (!p_smbus)
-				break;
-			rev = p_smbus->revision;
-			if ((pdev->device == 0x4386) || (rev == 0x3a)
-			    || (rev == 0x3b)) {
-				u8 tmp;
-				ehci_info(ehci, "applying AMD SB600/SB700 USB "
-					"freeze workaround\n");
-				pci_read_config_byte(pdev, 0x53, &tmp);
-				pci_write_config_byte(pdev, 0x53, tmp | (1<<3));
-			}
-			pci_dev_put(p_smbus);
+		if ((pdev->device == 0x4386 || pdev->device == 0x4396) &&
+				usb_amd_hang_symptom_quirk()) {
+			u8 tmp;
+			ehci_info(ehci, "applying AMD SB600/SB700 USB freeze workaround\n");
+			pci_read_config_byte(pdev, 0x53, &tmp);
+			pci_write_config_byte(pdev, 0x53, tmp | (1<<3));
 		}
 		break;
 	case PCI_VENDOR_ID_NETMOS:
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 9eec463c73c5..138a55536d97 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -262,6 +262,19 @@ int usb_hcd_amd_remote_wakeup_quirk(struct pci_dev *pdev)
 }
 EXPORT_SYMBOL_GPL(usb_hcd_amd_remote_wakeup_quirk);
 
+bool usb_amd_hang_symptom_quirk(void)
+{
+	u8 rev;
+
+	usb_amd_find_chipset_info();
+	rev = amd_chipset.sb_type.rev;
+	/* SB600 and old version of SB700 have hang symptom bug */
+	return amd_chipset.sb_type.gen == AMD_CHIPSET_SB600 ||
+			(amd_chipset.sb_type.gen == AMD_CHIPSET_SB700 &&
+			 rev >= 0x3a && rev <= 0x3b);
+}
+EXPORT_SYMBOL_GPL(usb_amd_hang_symptom_quirk);
+
 /*
  * The hardware normally enables the A-link power management feature, which
  * lets the system lower the power consumption in idle states.
diff --git a/drivers/usb/host/pci-quirks.h b/drivers/usb/host/pci-quirks.h
index ed6700d00fe6..820f532f7c1c 100644
--- a/drivers/usb/host/pci-quirks.h
+++ b/drivers/usb/host/pci-quirks.h
@@ -5,6 +5,7 @@
 void uhci_reset_hc(struct pci_dev *pdev, unsigned long base);
 int uhci_check_and_reset_hc(struct pci_dev *pdev, unsigned long base);
 int usb_amd_find_chipset_info(void);
+bool usb_amd_hang_symptom_quirk(void);
 void usb_amd_dev_put(void);
 void usb_amd_quirk_pll_disable(void);
 void usb_amd_quirk_pll_enable(void);
-- 
cgit 


From 02c123ee99c793f65af2dbda17d5fe87d448f808 Mon Sep 17 00:00:00 2001
From: Huang Rui <ray.huang@amd.com>
Date: Thu, 3 Oct 2013 23:37:13 +0800
Subject: usb: ohci: use amd_chipset_type to filter for SB800 prefetch

Commit "usb: pci-quirks: refactor AMD quirk to abstract AMD chipset types"
introduced a new AMD chipset type to filter AMD platforms with different
chipsets.

According to a recent thread [1], this patch updates SB800 prefetch routine
in AMD PLL quirk. And make it use the new chipset type to represent SB800
generation.

[1] http://marc.info/?l=linux-usb&m=138012321616452&w=2

Signed-off-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ohci-pci.c   | 14 +-------------
 drivers/usb/host/pci-quirks.c |  8 ++++++++
 drivers/usb/host/pci-quirks.h |  1 +
 3 files changed, 10 insertions(+), 13 deletions(-)

diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c
index eedf97c1790e..90879e9ccbec 100644
--- a/drivers/usb/host/ohci-pci.c
+++ b/drivers/usb/host/ohci-pci.c
@@ -150,28 +150,16 @@ static int ohci_quirk_nec(struct usb_hcd *hcd)
 static int ohci_quirk_amd700(struct usb_hcd *hcd)
 {
 	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
-	struct pci_dev *amd_smbus_dev;
-	u8 rev;
 
 	if (usb_amd_find_chipset_info())
 		ohci->flags |= OHCI_QUIRK_AMD_PLL;
 
-	amd_smbus_dev = pci_get_device(PCI_VENDOR_ID_ATI,
-			PCI_DEVICE_ID_ATI_SBX00_SMBUS, NULL);
-	if (!amd_smbus_dev)
-		return 0;
-
-	rev = amd_smbus_dev->revision;
-
 	/* SB800 needs pre-fetch fix */
-	if ((rev >= 0x40) && (rev <= 0x4f)) {
+	if (usb_amd_prefetch_quirk()) {
 		ohci->flags |= OHCI_QUIRK_AMD_PREFETCH;
 		ohci_dbg(ohci, "enabled AMD prefetch quirk\n");
 	}
 
-	pci_dev_put(amd_smbus_dev);
-	amd_smbus_dev = NULL;
-
 	return 0;
 }
 
diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c
index 138a55536d97..8c6c6d9036d1 100644
--- a/drivers/usb/host/pci-quirks.c
+++ b/drivers/usb/host/pci-quirks.c
@@ -275,6 +275,14 @@ bool usb_amd_hang_symptom_quirk(void)
 }
 EXPORT_SYMBOL_GPL(usb_amd_hang_symptom_quirk);
 
+bool usb_amd_prefetch_quirk(void)
+{
+	usb_amd_find_chipset_info();
+	/* SB800 needs pre-fetch fix */
+	return amd_chipset.sb_type.gen == AMD_CHIPSET_SB800;
+}
+EXPORT_SYMBOL_GPL(usb_amd_prefetch_quirk);
+
 /*
  * The hardware normally enables the A-link power management feature, which
  * lets the system lower the power consumption in idle states.
diff --git a/drivers/usb/host/pci-quirks.h b/drivers/usb/host/pci-quirks.h
index 820f532f7c1c..638e88f7a28b 100644
--- a/drivers/usb/host/pci-quirks.h
+++ b/drivers/usb/host/pci-quirks.h
@@ -6,6 +6,7 @@ void uhci_reset_hc(struct pci_dev *pdev, unsigned long base);
 int uhci_check_and_reset_hc(struct pci_dev *pdev, unsigned long base);
 int usb_amd_find_chipset_info(void);
 bool usb_amd_hang_symptom_quirk(void);
+bool usb_amd_prefetch_quirk(void);
 void usb_amd_dev_put(void);
 void usb_amd_quirk_pll_disable(void);
 void usb_amd_quirk_pll_enable(void);
-- 
cgit 


From 33186c441684de348636f94412d2fc256e641113 Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Tue, 1 Oct 2013 10:14:56 -0500
Subject: usb: wusbcore: avoid stack overflow in URB enqueue error path

This patch modifies wa_urb_enqueue to return an error and not call the
urb completion routine if it failed to enqueue the urb because the HWA
device is gone.  This prevents a stack overflow due to infinite
submit/complete recursion when unplugging the HWA while connected to a
HID device.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/wa-xfer.c | 51 +++++++++++++++++++++++++++++++-----------
 1 file changed, 38 insertions(+), 13 deletions(-)

diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index 9dabd8957d60..13faac0ea99f 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -1052,7 +1052,7 @@ error_seg_submit:
  * result never kicks in, the xfer will timeout from the USB code and
  * dequeue() will be called.
  */
-static void wa_urb_enqueue_b(struct wa_xfer *xfer)
+static int wa_urb_enqueue_b(struct wa_xfer *xfer)
 {
 	int result;
 	unsigned long flags;
@@ -1063,18 +1063,22 @@ static void wa_urb_enqueue_b(struct wa_xfer *xfer)
 	unsigned done;
 
 	result = rpipe_get_by_ep(wa, xfer->ep, urb, xfer->gfp);
-	if (result < 0)
+	if (result < 0) {
+		pr_err("%s: error_rpipe_get\n", __func__);
 		goto error_rpipe_get;
+	}
 	result = -ENODEV;
 	/* FIXME: segmentation broken -- kills DWA */
 	mutex_lock(&wusbhc->mutex);		/* get a WUSB dev */
 	if (urb->dev == NULL) {
 		mutex_unlock(&wusbhc->mutex);
+		pr_err("%s: error usb dev gone\n", __func__);
 		goto error_dev_gone;
 	}
 	wusb_dev = __wusb_dev_get_by_usb_dev(wusbhc, urb->dev);
 	if (wusb_dev == NULL) {
 		mutex_unlock(&wusbhc->mutex);
+		pr_err("%s: error wusb dev gone\n", __func__);
 		goto error_dev_gone;
 	}
 	mutex_unlock(&wusbhc->mutex);
@@ -1082,21 +1086,28 @@ static void wa_urb_enqueue_b(struct wa_xfer *xfer)
 	spin_lock_irqsave(&xfer->lock, flags);
 	xfer->wusb_dev = wusb_dev;
 	result = urb->status;
-	if (urb->status != -EINPROGRESS)
+	if (urb->status != -EINPROGRESS) {
+		pr_err("%s: error_dequeued\n", __func__);
 		goto error_dequeued;
+	}
 
 	result = __wa_xfer_setup(xfer, urb);
-	if (result < 0)
+	if (result < 0) {
+		pr_err("%s: error_xfer_setup\n", __func__);
 		goto error_xfer_setup;
+	}
 	result = __wa_xfer_submit(xfer);
-	if (result < 0)
+	if (result < 0) {
+		pr_err("%s: error_xfer_submit\n", __func__);
 		goto error_xfer_submit;
+	}
 	spin_unlock_irqrestore(&xfer->lock, flags);
-	return;
+	return 0;
 
-	/* this is basically wa_xfer_completion() broken up wa_xfer_giveback()
-	 * does a wa_xfer_put() that will call wa_xfer_destroy() and clean
-	 * upundo setup().
+	/*
+	 * this is basically wa_xfer_completion() broken up wa_xfer_giveback()
+	 * does a wa_xfer_put() that will call wa_xfer_destroy() and undo
+	 * setup().
 	 */
 error_xfer_setup:
 error_dequeued:
@@ -1108,8 +1119,7 @@ error_dev_gone:
 	rpipe_put(xfer->ep->hcpriv);
 error_rpipe_get:
 	xfer->result = result;
-	wa_xfer_giveback(xfer);
-	return;
+	return result;
 
 error_xfer_submit:
 	done = __wa_xfer_is_done(xfer);
@@ -1117,6 +1127,8 @@ error_xfer_submit:
 	spin_unlock_irqrestore(&xfer->lock, flags);
 	if (done)
 		wa_xfer_completion(xfer);
+	/* return success since the completion routine will run. */
+	return 0;
 }
 
 /*
@@ -1150,7 +1162,8 @@ void wa_urb_enqueue_run(struct work_struct *ws)
 		list_del_init(&xfer->list_node);
 
 		urb = xfer->urb;
-		wa_urb_enqueue_b(xfer);
+		if (wa_urb_enqueue_b(xfer) < 0)
+			wa_xfer_giveback(xfer);
 		usb_put_urb(urb);	/* taken when queuing */
 	}
 }
@@ -1256,7 +1269,19 @@ int wa_urb_enqueue(struct wahc *wa, struct usb_host_endpoint *ep,
 		spin_unlock_irqrestore(&wa->xfer_list_lock, my_flags);
 		queue_work(wusbd, &wa->xfer_enqueue_work);
 	} else {
-		wa_urb_enqueue_b(xfer);
+		result = wa_urb_enqueue_b(xfer);
+		if (result < 0) {
+			/*
+			 * URB submit/enqueue failed.  Clean up, return an
+			 * error and do not run the callback.  This avoids
+			 * an infinite submit/complete loop.
+			 */
+			dev_err(dev, "%s: URB enqueue failed: %d\n",
+			   __func__, result);
+			wa_put(xfer->wa);
+			wa_xfer_put(xfer);
+			return result;
+		}
 	}
 	return 0;
 
-- 
cgit 


From 7e176dcb035eef8917e5fc2e653460b5410dbc34 Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Tue, 1 Oct 2013 14:04:33 -0500
Subject: usb: wusbcore: implement hwahc_op_get_frame_number

This patch adds an implementation for hwahc_op_get_frame_number.  The
request is fulfulled by forwarding it to the lower hcd.  This was done
because the GET_TIME request on the HWA requires sending an URB to the
HWA and waiting for the results which cannot be done in atomic context.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/hwa-hc.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c
index 5b86ffb88f1c..e58b92491eb1 100644
--- a/drivers/usb/host/hwa-hc.c
+++ b/drivers/usb/host/hwa-hc.c
@@ -199,10 +199,14 @@ static int hwahc_op_get_frame_number(struct usb_hcd *usb_hcd)
 {
 	struct wusbhc *wusbhc = usb_hcd_to_wusbhc(usb_hcd);
 	struct hwahc *hwahc = container_of(wusbhc, struct hwahc, wusbhc);
+	struct wahc *wa = &hwahc->wa;
 
-	dev_err(wusbhc->dev, "%s (%p [%p]) UNIMPLEMENTED\n", __func__,
-		usb_hcd, hwahc);
-	return -ENOSYS;
+	/*
+	 * We cannot query the HWA for the WUSB time since that requires sending
+	 * a synchronous URB and this function can be called in_interrupt.
+	 * Instead, query the USB frame number for our parent and use that.
+	 */
+	return usb_get_current_frame_number(wa->usb_dev);
 }
 
 static int hwahc_op_urb_enqueue(struct usb_hcd *usb_hcd, struct urb *urb,
-- 
cgit 


From 1a7ff0e3673807ff6f38e7ae7b79e46a986fc578 Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Tue, 1 Oct 2013 14:04:34 -0500
Subject: usb: wusbcore: set the RPIPE bOverTheAirInterval for isoc endpoints

This patch sets the RPIPE bOverTheAirInterval field for RPIPES which
refer to isochronous endpoints.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/wa-rpipe.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/wusbcore/wa-rpipe.c b/drivers/usb/wusbcore/wa-rpipe.c
index fd4f1ce6256a..554b16bd22f1 100644
--- a/drivers/usb/wusbcore/wa-rpipe.c
+++ b/drivers/usb/wusbcore/wa-rpipe.c
@@ -361,8 +361,10 @@ static int rpipe_aim(struct wa_rpipe *rpipe, struct wahc *wa,
 			epcd->bMaxSequence, 32U), 2U);
 	rpipe->descr.bMaxDataSequence = epcd_max_sequence - 1;
 	rpipe->descr.bInterval = ep->desc.bInterval;
-	/* FIXME: bOverTheAirInterval */
-	rpipe->descr.bOverTheAirInterval = 0;	/* 0 if not isoc */
+	if (usb_endpoint_xfer_isoc(&ep->desc))
+		rpipe->descr.bOverTheAirInterval = epcd->bOverTheAirInterval;
+	else
+		rpipe->descr.bOverTheAirInterval = 0;	/* 0 if not isoc */
 	/* FIXME: xmit power & preamble blah blah */
 	rpipe->descr.bmAttribute = (ep->desc.bmAttributes &
 					USB_ENDPOINT_XFERTYPE_MASK);
-- 
cgit 


From 4ae1a5bd3fabd7f7f3575309c7a0d676fecf6303 Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Tue, 1 Oct 2013 14:04:35 -0500
Subject: usb: wusbcore: Add isoc transfer type enum and packet definitions

This patch adds transfer type enum and packet definitions for
WA_XFER_ISO_PACKET_INFO and WA_XFER_ISO_PACKET_STATUS packets.

It also changes instances of __attribute__((packed)) to __packed to make
checkpatch.pl happy.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/usb/wusb-wa.h | 45 +++++++++++++++++++++++++++++++++------------
 1 file changed, 33 insertions(+), 12 deletions(-)

diff --git a/include/linux/usb/wusb-wa.h b/include/linux/usb/wusb-wa.h
index 4ff744e2b678..9ae7e299bf77 100644
--- a/include/linux/usb/wusb-wa.h
+++ b/include/linux/usb/wusb-wa.h
@@ -142,7 +142,7 @@ enum wa_notif_type {
 struct wa_notif_hdr {
 	u8 bLength;
 	u8 bNotifyType;			/* enum wa_notif_type */
-} __attribute__((packed));
+} __packed;
 
 /**
  * HWA DN Received notification [(WUSB] section 8.5.4.2)
@@ -158,7 +158,7 @@ struct hwa_notif_dn {
 	u8 bSourceDeviceAddr;		/* from errata 2005/07 */
 	u8 bmAttributes;
 	struct wusb_dn_hdr dndata[];
-} __attribute__((packed));
+} __packed;
 
 /* [WUSB] section 8.3.3 */
 enum wa_xfer_type {
@@ -167,6 +167,8 @@ enum wa_xfer_type {
 	WA_XFER_TYPE_ISO = 0x82,
 	WA_XFER_RESULT = 0x83,
 	WA_XFER_ABORT = 0x84,
+	WA_XFER_ISO_PACKET_INFO = 0xA0,
+	WA_XFER_ISO_PACKET_STATUS = 0xA1,
 };
 
 /* [WUSB] section 8.3.3 */
@@ -177,28 +179,47 @@ struct wa_xfer_hdr {
 	__le32 dwTransferID;		/* Host-assigned ID */
 	__le32 dwTransferLength;	/* Length of data to xfer */
 	u8 bTransferSegment;
-} __attribute__((packed));
+} __packed;
 
 struct wa_xfer_ctl {
 	struct wa_xfer_hdr hdr;
 	u8 bmAttribute;
 	__le16 wReserved;
 	struct usb_ctrlrequest baSetupData;
-} __attribute__((packed));
+} __packed;
 
 struct wa_xfer_bi {
 	struct wa_xfer_hdr hdr;
 	u8 bReserved;
 	__le16 wReserved;
-} __attribute__((packed));
+} __packed;
 
+/* [WUSB] section 8.5.5 */
 struct wa_xfer_hwaiso {
 	struct wa_xfer_hdr hdr;
 	u8 bReserved;
 	__le16 wPresentationTime;
 	__le32 dwNumOfPackets;
-	/* FIXME: u8 pktdata[]? */
-} __attribute__((packed));
+} __packed;
+
+struct wa_xfer_packet_info_hwaiso {
+	__le16 wLength;
+	u8 bPacketType;
+	u8 bReserved;
+	__le16 PacketLength[0];
+} __packed;
+
+struct wa_xfer_packet_status_len_hwaiso {
+	__le16 PacketLength;
+	__le16 PacketStatus;
+} __packed;
+
+struct wa_xfer_packet_status_hwaiso {
+	__le16 wLength;
+	u8 bPacketType;
+	u8 bReserved;
+	struct wa_xfer_packet_status_len_hwaiso PacketStatus[0];
+} __packed;
 
 /* [WUSB] section 8.3.3.5 */
 struct wa_xfer_abort {
@@ -206,7 +227,7 @@ struct wa_xfer_abort {
 	u8 bRequestType;
 	__le16 wRPipe;			/* RPipe index */
 	__le32 dwTransferID;		/* Host-assigned ID */
-} __attribute__((packed));
+} __packed;
 
 /**
  * WA Transfer Complete notification ([WUSB] section 8.3.3.3)
@@ -216,7 +237,7 @@ struct wa_notif_xfer {
 	struct wa_notif_hdr hdr;
 	u8 bEndpoint;
 	u8 Reserved;
-} __attribute__((packed));
+} __packed;
 
 /** Transfer result basic codes [WUSB] table 8-15 */
 enum {
@@ -243,7 +264,7 @@ struct wa_xfer_result {
 	u8     bTransferSegment;
 	u8     bTransferStatus;
 	__le32 dwNumOfPackets;
-} __attribute__((packed));
+} __packed;
 
 /**
  * Wire Adapter Class Descriptor ([WUSB] section 8.5.2.7).
@@ -267,7 +288,7 @@ struct usb_wa_descriptor {
 	u8	bPwrOn2PwrGood;
 	u8	bNumMMCIEs;
 	u8	DeviceRemovable;	/* FIXME: in DWA this is up to 16 bytes */
-} __attribute__((packed));
+} __packed;
 
 /**
  * HWA Device Information Buffer (WUSB1.0[T8.54])
@@ -277,6 +298,6 @@ struct hwa_dev_info {
 	u8	bDeviceAddress;
 	__le16	wPHYRates;
 	u8	bmDeviceAttribute;
-} __attribute__((packed));
+} __packed;
 
 #endif /* #ifndef __LINUX_USB_WUSB_WA_H */
-- 
cgit 


From 4fd06af96b9397fc54eb6b1a013a60c34693eef0 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Thu, 3 Oct 2013 18:12:30 +0300
Subject: usb: phy: omap-control: Get rid of platform data

omap-control device is present from OMAP4 onwards which
support device tree boots only. So get rid of platform data.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/phy/phy-omap-control.c   | 12 +++---------
 include/linux/usb/omap_control_usb.h |  4 ----
 2 files changed, 3 insertions(+), 13 deletions(-)

diff --git a/drivers/usb/phy/phy-omap-control.c b/drivers/usb/phy/phy-omap-control.c
index a4dda8e12562..977259252a8e 100644
--- a/drivers/usb/phy/phy-omap-control.c
+++ b/drivers/usb/phy/phy-omap-control.c
@@ -197,8 +197,6 @@ static int omap_control_usb_probe(struct platform_device *pdev)
 {
 	struct resource	*res;
 	struct device_node *np = pdev->dev.of_node;
-	struct omap_control_usb_platform_data *pdata =
-			dev_get_platdata(&pdev->dev);
 
 	control_usb = devm_kzalloc(&pdev->dev, sizeof(*control_usb),
 		GFP_KERNEL);
@@ -207,14 +205,10 @@ static int omap_control_usb_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	if (np) {
+	if (np)
 		of_property_read_u32(np, "ti,type", &control_usb->type);
-	} else if (pdata) {
-		control_usb->type = pdata->type;
-	} else {
-		dev_err(&pdev->dev, "no pdata present\n");
-		return -EINVAL;
-	}
+	else
+		return -EINVAL;	/* We only support DT boot */
 
 	control_usb->dev	= &pdev->dev;
 
diff --git a/include/linux/usb/omap_control_usb.h b/include/linux/usb/omap_control_usb.h
index 27b5b8c931b0..e2416b45169b 100644
--- a/include/linux/usb/omap_control_usb.h
+++ b/include/linux/usb/omap_control_usb.h
@@ -31,10 +31,6 @@ struct omap_control_usb {
 	u32 type;
 };
 
-struct omap_control_usb_platform_data {
-	u8 type;
-};
-
 enum omap_control_usb_mode {
 	USB_MODE_UNDEFINED = 0,
 	USB_MODE_HOST,
-- 
cgit 


From 6cb9310a3290beb8c0d31703a2e76b90a10b4ca0 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Thu, 3 Oct 2013 18:12:31 +0300
Subject: usb: phy: omap: Add new device types and remove
 omap_control_usb3_phy_power()

Add support for new device types and in the process rid of "ti,type"
device tree property. The correct type of device will be determined
from the compatible string instead.

Introduce a compatible string for each device type. At the moment
we support 4 types OTGHS, USB2, PIPE3 (e.g. USB3) and DRA7USB2.

Update DT binding information to reflect these changes.

Also get rid of omap_control_usb3_phy_power(). Just one function
i.e. omap_control_usb_phy_power() will now take care of all PHY types.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/devicetree/bindings/usb/omap-usb.txt |  30 ++--
 drivers/usb/phy/phy-omap-control.c                 | 173 ++++++++++++---------
 drivers/usb/phy/phy-omap-usb3.c                    |   6 +-
 include/linux/usb/omap_control_usb.h               |  24 +--
 4 files changed, 130 insertions(+), 103 deletions(-)

diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt b/Documentation/devicetree/bindings/usb/omap-usb.txt
index 661cb06a9063..9add35c37ebc 100644
--- a/Documentation/devicetree/bindings/usb/omap-usb.txt
+++ b/Documentation/devicetree/bindings/usb/omap-usb.txt
@@ -83,22 +83,22 @@ omap_dwc3 {
 OMAP CONTROL USB
 
 Required properties:
- - compatible: Should be "ti,omap-control-usb"
+ - compatible: Should be one of
+ "ti,control-phy-otghs" - if it has otghs_control mailbox register as on OMAP4.
+ "ti,control-phy-usb2" - if it has Power down bit in control_dev_conf register
+			e.g. USB2_PHY on OMAP5.
+ "ti,control-phy-pipe3" - if it has DPLL and individual Rx & Tx power control
+			e.g. USB3 PHY and SATA PHY on OMAP5.
+ "ti,control-phy-dra7usb2" - if it has power down register like USB2 PHY on
+			DRA7 platform.
  - reg : Address and length of the register set for the device. It contains
-   the address of "control_dev_conf" and "otghs_control" or "phy_power_usb"
-   depending upon omap4 or omap5.
- - reg-names: The names of the register addresses corresponding to the registers
-   filled in "reg".
- - ti,type: This is used to differentiate whether the control module has
-   usb mailbox or usb3 phy power. omap4 has usb mailbox in control module to
-   notify events to the musb core and omap5 has usb3 phy power register to
-   power on usb3 phy. Should be "1" if it has mailbox and "2" if it has usb3
-   phy power.
+   the address of "otghs_control" for control-phy-otghs or "power" register
+   for other types.
+ - reg-names: should be "otghs_control" control-phy-otghs and "power" for
+   other types.
 
 omap_control_usb: omap-control-usb@4a002300 {
-	compatible = "ti,omap-control-usb";
-	reg = <0x4a002300 0x4>,
-	      <0x4a00233c 0x4>;
-	reg-names = "control_dev_conf", "otghs_control";
-	ti,type = <1>;
+	compatible = "ti,control-phy-otghs";
+	reg = <0x4a00233c 0x4>;
+	reg-names = "otghs_control";
 };
diff --git a/drivers/usb/phy/phy-omap-control.c b/drivers/usb/phy/phy-omap-control.c
index 977259252a8e..1c8a7c5ccb9b 100644
--- a/drivers/usb/phy/phy-omap-control.c
+++ b/drivers/usb/phy/phy-omap-control.c
@@ -20,6 +20,7 @@
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/of.h>
+#include <linux/of_device.h>
 #include <linux/err.h>
 #include <linux/io.h>
 #include <linux/clk.h>
@@ -46,61 +47,70 @@ struct device *omap_get_control_dev(void)
 EXPORT_SYMBOL_GPL(omap_get_control_dev);
 
 /**
- * omap_control_usb3_phy_power - power on/off the serializer using control
- *	module
+ * omap_control_usb_phy_power - power on/off the phy using control module reg
  * @dev: the control module device
- * @on: 0 to off and 1 to on based on powering on or off the PHY
- *
- * usb3 PHY driver should call this API to power on or off the PHY.
+ * @on: 0 or 1, based on powering on or off the PHY
  */
-void omap_control_usb3_phy_power(struct device *dev, bool on)
+void omap_control_usb_phy_power(struct device *dev, int on)
 {
 	u32 val;
 	unsigned long rate;
-	struct omap_control_usb	*control_usb = dev_get_drvdata(dev);
+	struct omap_control_usb	*control_usb;
 
-	if (control_usb->type != OMAP_CTRL_DEV_TYPE2)
+	if (IS_ERR(dev) || !dev) {
+		pr_err("%s: invalid device\n", __func__);
 		return;
+	}
 
-	rate = clk_get_rate(control_usb->sys_clk);
-	rate = rate/1000000;
-
-	val = readl(control_usb->phy_power);
-
-	if (on) {
-		val &= ~(OMAP_CTRL_USB_PWRCTL_CLK_CMD_MASK |
-			OMAP_CTRL_USB_PWRCTL_CLK_FREQ_MASK);
-		val |= OMAP_CTRL_USB3_PHY_TX_RX_POWERON <<
-			OMAP_CTRL_USB_PWRCTL_CLK_CMD_SHIFT;
-		val |= rate << OMAP_CTRL_USB_PWRCTL_CLK_FREQ_SHIFT;
-	} else {
-		val &= ~OMAP_CTRL_USB_PWRCTL_CLK_CMD_MASK;
-		val |= OMAP_CTRL_USB3_PHY_TX_RX_POWEROFF <<
-			OMAP_CTRL_USB_PWRCTL_CLK_CMD_SHIFT;
+	control_usb = dev_get_drvdata(dev);
+	if (!control_usb) {
+		dev_err(dev, "%s: invalid control usb device\n", __func__);
+		return;
 	}
 
-	writel(val, control_usb->phy_power);
-}
-EXPORT_SYMBOL_GPL(omap_control_usb3_phy_power);
+	if (control_usb->type == OMAP_CTRL_TYPE_OTGHS)
+		return;
 
-/**
- * omap_control_usb_phy_power - power on/off the phy using control module reg
- * @dev: the control module device
- * @on: 0 or 1, based on powering on or off the PHY
- */
-void omap_control_usb_phy_power(struct device *dev, int on)
-{
-	u32 val;
-	struct omap_control_usb	*control_usb = dev_get_drvdata(dev);
+	val = readl(control_usb->power);
+
+	switch (control_usb->type) {
+	case OMAP_CTRL_TYPE_USB2:
+		if (on)
+			val &= ~OMAP_CTRL_DEV_PHY_PD;
+		else
+			val |= OMAP_CTRL_DEV_PHY_PD;
+		break;
 
-	val = readl(control_usb->dev_conf);
+	case OMAP_CTRL_TYPE_PIPE3:
+		rate = clk_get_rate(control_usb->sys_clk);
+		rate = rate/1000000;
+
+		if (on) {
+			val &= ~(OMAP_CTRL_USB_PWRCTL_CLK_CMD_MASK |
+					OMAP_CTRL_USB_PWRCTL_CLK_FREQ_MASK);
+			val |= OMAP_CTRL_USB3_PHY_TX_RX_POWERON <<
+				OMAP_CTRL_USB_PWRCTL_CLK_CMD_SHIFT;
+			val |= rate << OMAP_CTRL_USB_PWRCTL_CLK_FREQ_SHIFT;
+		} else {
+			val &= ~OMAP_CTRL_USB_PWRCTL_CLK_CMD_MASK;
+			val |= OMAP_CTRL_USB3_PHY_TX_RX_POWEROFF <<
+				OMAP_CTRL_USB_PWRCTL_CLK_CMD_SHIFT;
+		}
+		break;
 
-	if (on)
-		val &= ~OMAP_CTRL_DEV_PHY_PD;
-	else
-		val |= OMAP_CTRL_DEV_PHY_PD;
+	case OMAP_CTRL_TYPE_DRA7USB2:
+		if (on)
+			val &= ~OMAP_CTRL_USB2_PHY_PD;
+		else
+			val |= OMAP_CTRL_USB2_PHY_PD;
+		break;
+	default:
+		dev_err(dev, "%s: type %d not recognized\n",
+					__func__, control_usb->type);
+		break;
+	}
 
-	writel(val, control_usb->dev_conf);
+	writel(val, control_usb->power);
 }
 EXPORT_SYMBOL_GPL(omap_control_usb_phy_power);
 
@@ -172,7 +182,7 @@ void omap_control_usb_set_mode(struct device *dev,
 {
 	struct omap_control_usb	*ctrl_usb;
 
-	if (IS_ERR(dev) || control_usb->type != OMAP_CTRL_DEV_TYPE1)
+	if (IS_ERR(dev) || control_usb->type != OMAP_CTRL_TYPE_OTGHS)
 		return;
 
 	ctrl_usb = dev_get_drvdata(dev);
@@ -193,10 +203,45 @@ void omap_control_usb_set_mode(struct device *dev,
 }
 EXPORT_SYMBOL_GPL(omap_control_usb_set_mode);
 
+#ifdef CONFIG_OF
+
+static const enum omap_control_usb_type otghs_data = OMAP_CTRL_TYPE_OTGHS;
+static const enum omap_control_usb_type usb2_data = OMAP_CTRL_TYPE_USB2;
+static const enum omap_control_usb_type pipe3_data = OMAP_CTRL_TYPE_PIPE3;
+static const enum omap_control_usb_type dra7usb2_data = OMAP_CTRL_TYPE_DRA7USB2;
+
+static const struct of_device_id omap_control_usb_id_table[] = {
+	{
+		.compatible = "ti,control-phy-otghs",
+		.data = &otghs_data,
+	},
+	{
+		.compatible = "ti,control-phy-usb2",
+		.data = &usb2_data,
+	},
+	{
+		.compatible = "ti,control-phy-pipe3",
+		.data = &pipe3_data,
+	},
+	{
+		.compatible = "ti,control-phy-dra7usb2",
+		.data = &dra7usb2_data,
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, omap_control_usb_id_table);
+#endif
+
+
 static int omap_control_usb_probe(struct platform_device *pdev)
 {
 	struct resource	*res;
-	struct device_node *np = pdev->dev.of_node;
+	const struct of_device_id *of_id;
+
+	of_id = of_match_device(of_match_ptr(omap_control_usb_id_table),
+								&pdev->dev);
+	if (!of_id)
+		return -EINVAL;
 
 	control_usb = devm_kzalloc(&pdev->dev, sizeof(*control_usb),
 		GFP_KERNEL);
@@ -205,36 +250,27 @@ static int omap_control_usb_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	if (np)
-		of_property_read_u32(np, "ti,type", &control_usb->type);
-	else
-		return -EINVAL;	/* We only support DT boot */
-
-	control_usb->dev	= &pdev->dev;
+	control_usb->dev = &pdev->dev;
+	control_usb->type = *(enum omap_control_usb_type *)of_id->data;
 
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
-		"control_dev_conf");
-	control_usb->dev_conf = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(control_usb->dev_conf))
-		return PTR_ERR(control_usb->dev_conf);
-
-	if (control_usb->type == OMAP_CTRL_DEV_TYPE1) {
+	if (control_usb->type == OMAP_CTRL_TYPE_OTGHS) {
 		res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
 			"otghs_control");
 		control_usb->otghs_control = devm_ioremap_resource(
 			&pdev->dev, res);
 		if (IS_ERR(control_usb->otghs_control))
 			return PTR_ERR(control_usb->otghs_control);
-	}
-
-	if (control_usb->type == OMAP_CTRL_DEV_TYPE2) {
+	} else {
 		res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
-			"phy_power_usb");
-		control_usb->phy_power = devm_ioremap_resource(
-			&pdev->dev, res);
-		if (IS_ERR(control_usb->phy_power))
-			return PTR_ERR(control_usb->phy_power);
+				"power");
+		control_usb->power = devm_ioremap_resource(&pdev->dev, res);
+		if (IS_ERR(control_usb->power)) {
+			dev_err(&pdev->dev, "Couldn't get power register\n");
+			return PTR_ERR(control_usb->power);
+		}
+	}
 
+	if (control_usb->type == OMAP_CTRL_TYPE_PIPE3) {
 		control_usb->sys_clk = devm_clk_get(control_usb->dev,
 			"sys_clkin");
 		if (IS_ERR(control_usb->sys_clk)) {
@@ -243,20 +279,11 @@ static int omap_control_usb_probe(struct platform_device *pdev)
 		}
 	}
 
-
 	dev_set_drvdata(control_usb->dev, control_usb);
 
 	return 0;
 }
 
-#ifdef CONFIG_OF
-static const struct of_device_id omap_control_usb_id_table[] = {
-	{ .compatible = "ti,omap-control-usb" },
-	{}
-};
-MODULE_DEVICE_TABLE(of, omap_control_usb_id_table);
-#endif
-
 static struct platform_driver omap_control_usb_driver = {
 	.probe		= omap_control_usb_probe,
 	.driver		= {
diff --git a/drivers/usb/phy/phy-omap-usb3.c b/drivers/usb/phy/phy-omap-usb3.c
index 4e8a0405f956..0824be42cd18 100644
--- a/drivers/usb/phy/phy-omap-usb3.c
+++ b/drivers/usb/phy/phy-omap-usb3.c
@@ -100,7 +100,7 @@ static int omap_usb3_suspend(struct usb_phy *x, int suspend)
 			udelay(1);
 		} while (--timeout);
 
-		omap_control_usb3_phy_power(phy->control_dev, 0);
+		omap_control_usb_phy_power(phy->control_dev, 0);
 
 		phy->is_suspended	= 1;
 	} else if (!suspend && phy->is_suspended) {
@@ -189,7 +189,7 @@ static int omap_usb3_init(struct usb_phy *x)
 	if (ret)
 		return ret;
 
-	omap_control_usb3_phy_power(phy->control_dev, 1);
+	omap_control_usb_phy_power(phy->control_dev, 1);
 
 	return 0;
 }
@@ -245,7 +245,7 @@ static int omap_usb3_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	omap_control_usb3_phy_power(phy->control_dev, 0);
+	omap_control_usb_phy_power(phy->control_dev, 0);
 	usb_add_phy_dev(&phy->phy);
 
 	platform_set_drvdata(pdev, phy);
diff --git a/include/linux/usb/omap_control_usb.h b/include/linux/usb/omap_control_usb.h
index e2416b45169b..61b889a9c67b 100644
--- a/include/linux/usb/omap_control_usb.h
+++ b/include/linux/usb/omap_control_usb.h
@@ -19,16 +19,23 @@
 #ifndef __OMAP_CONTROL_USB_H__
 #define __OMAP_CONTROL_USB_H__
 
+enum omap_control_usb_type {
+	OMAP_CTRL_TYPE_OTGHS = 1,	/* Mailbox OTGHS_CONTROL */
+	OMAP_CTRL_TYPE_USB2,	/* USB2_PHY, power down in CONTROL_DEV_CONF */
+	OMAP_CTRL_TYPE_PIPE3,	/* PIPE3 PHY, DPLL & seperate Rx/Tx power */
+	OMAP_CTRL_TYPE_DRA7USB2, /* USB2 PHY, power and power_aux e.g. DRA7 */
+};
+
 struct omap_control_usb {
 	struct device *dev;
 
-	u32 __iomem *dev_conf;
 	u32 __iomem *otghs_control;
-	u32 __iomem *phy_power;
+	u32 __iomem *power;
+	u32 __iomem *power_aux;
 
 	struct clk *sys_clk;
 
-	u32 type;
+	enum omap_control_usb_type type;
 };
 
 enum omap_control_usb_mode {
@@ -38,10 +45,6 @@ enum omap_control_usb_mode {
 	USB_MODE_DISCONNECT,
 };
 
-/* To differentiate ctrl module IP having either mailbox or USB3 PHY power */
-#define	OMAP_CTRL_DEV_TYPE1		0x1
-#define	OMAP_CTRL_DEV_TYPE2		0x2
-
 #define	OMAP_CTRL_DEV_PHY_PD		BIT(0)
 
 #define	OMAP_CTRL_DEV_AVALID		BIT(0)
@@ -59,10 +62,11 @@ enum omap_control_usb_mode {
 #define	OMAP_CTRL_USB3_PHY_TX_RX_POWERON	0x3
 #define	OMAP_CTRL_USB3_PHY_TX_RX_POWEROFF	0x0
 
+#define OMAP_CTRL_USB2_PHY_PD		BIT(28)
+
 #if IS_ENABLED(CONFIG_OMAP_CONTROL_USB)
 extern struct device *omap_get_control_dev(void);
 extern void omap_control_usb_phy_power(struct device *dev, int on);
-extern void omap_control_usb3_phy_power(struct device *dev, bool on);
 extern void omap_control_usb_set_mode(struct device *dev,
 	enum omap_control_usb_mode mode);
 #else
@@ -75,10 +79,6 @@ static inline void omap_control_usb_phy_power(struct device *dev, int on)
 {
 }
 
-static inline void omap_control_usb3_phy_power(struct device *dev, int on)
-{
-}
-
 static inline void omap_control_usb_set_mode(struct device *dev,
 	enum omap_control_usb_mode mode)
 {
-- 
cgit 


From 478b6c7436c23369611de766032415fa4f5cbb59 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Thu, 3 Oct 2013 18:12:32 +0300
Subject: usb: phy: omap-usb2: Don't use omap_get_control_dev()

omap_get_control_dev() is being deprecated as it doesn't support
multiple instances. As control device is present only from OMAP4
onwards which supports DT only, we use phandles to get the
reference to the control device.

As we don't support non-DT boot, we just bail out on probe
if device node is not present.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/phy/phy-omap-usb2.c | 31 +++++++++++++++++++++++--------
 1 file changed, 23 insertions(+), 8 deletions(-)

diff --git a/drivers/phy/phy-omap-usb2.c b/drivers/phy/phy-omap-usb2.c
index 4d7b4e5a9659..bfc5c337f99a 100644
--- a/drivers/phy/phy-omap-usb2.c
+++ b/drivers/phy/phy-omap-usb2.c
@@ -29,6 +29,7 @@
 #include <linux/delay.h>
 #include <linux/usb/omap_control_usb.h>
 #include <linux/phy/phy.h>
+#include <linux/of_platform.h>
 
 /**
  * omap_usb2_set_comparator - links the comparator present in the sytem with
@@ -145,10 +146,16 @@ static struct phy_ops ops = {
 
 static int omap_usb2_probe(struct platform_device *pdev)
 {
-	struct omap_usb			*phy;
-	struct phy			*generic_phy;
-	struct usb_otg			*otg;
-	struct phy_provider		*phy_provider;
+	struct omap_usb	*phy;
+	struct phy *generic_phy;
+	struct phy_provider *phy_provider;
+	struct usb_otg *otg;
+	struct device_node *node = pdev->dev.of_node;
+	struct device_node *control_node;
+	struct platform_device *control_pdev;
+
+	if (!node)
+		return -EINVAL;
 
 	phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL);
 	if (!phy) {
@@ -175,12 +182,20 @@ static int omap_usb2_probe(struct platform_device *pdev)
 	if (IS_ERR(phy_provider))
 		return PTR_ERR(phy_provider);
 
-	phy->control_dev = omap_get_control_dev();
-	if (IS_ERR(phy->control_dev)) {
-		dev_dbg(&pdev->dev, "Failed to get control device\n");
-		return -ENODEV;
+	control_node = of_parse_phandle(node, "ctrl-module", 0);
+	if (!control_node) {
+		dev_err(&pdev->dev, "Failed to get control device phandle\n");
+		return -EINVAL;
 	}
 
+	control_pdev = of_find_device_by_node(control_node);
+	if (!control_pdev) {
+		dev_err(&pdev->dev, "Failed to get control device\n");
+		return -EINVAL;
+	}
+
+	phy->control_dev = &control_pdev->dev;
+
 	phy->is_suspended	= 1;
 	omap_control_usb_phy_power(phy->control_dev, 0);
 
-- 
cgit 


From 918ee0d21ba451634788d04930f09f2c76492e18 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Thu, 3 Oct 2013 18:12:33 +0300
Subject: usb: phy: omap-usb3: Don't use omap_get_control_dev()

omap_get_control_dev() is being deprecated as it doesn't support
multiple instances. As control device is present only from OMAP4
onwards which supports DT only, we use phandles to get the
reference to the control device.

As we don't support non-DT boot, we just bail out on probe
if device node is not present.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/phy/phy-omap-usb3.c | 26 ++++++++++++++++++++------
 1 file changed, 20 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/phy/phy-omap-usb3.c b/drivers/usb/phy/phy-omap-usb3.c
index 0824be42cd18..0c6ba29bdddd 100644
--- a/drivers/usb/phy/phy-omap-usb3.c
+++ b/drivers/usb/phy/phy-omap-usb3.c
@@ -26,6 +26,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/delay.h>
 #include <linux/usb/omap_control_usb.h>
+#include <linux/of_platform.h>
 
 #define	PLL_STATUS		0x00000004
 #define	PLL_GO			0x00000008
@@ -196,8 +197,14 @@ static int omap_usb3_init(struct usb_phy *x)
 
 static int omap_usb3_probe(struct platform_device *pdev)
 {
-	struct omap_usb			*phy;
-	struct resource			*res;
+	struct omap_usb *phy;
+	struct resource *res;
+	struct device_node *node = pdev->dev.of_node;
+	struct device_node *control_node;
+	struct platform_device *control_pdev;
+
+	if (!node)
+		return -EINVAL;
 
 	phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL);
 	if (!phy) {
@@ -239,11 +246,18 @@ static int omap_usb3_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	phy->control_dev = omap_get_control_dev();
-	if (IS_ERR(phy->control_dev)) {
-		dev_dbg(&pdev->dev, "Failed to get control device\n");
-		return -ENODEV;
+	control_node = of_parse_phandle(node, "ctrl-module", 0);
+	if (!control_node) {
+		dev_err(&pdev->dev, "Failed to get control device phandle\n");
+		return -EINVAL;
 	}
+	control_pdev = of_find_device_by_node(control_node);
+	if (!control_pdev) {
+		dev_err(&pdev->dev, "Failed to get control device\n");
+		return -EINVAL;
+	}
+
+	phy->control_dev = &control_pdev->dev;
 
 	omap_control_usb_phy_power(phy->control_dev, 0);
 	usb_add_phy_dev(&phy->phy);
-- 
cgit 


From 8934d3e4d0e7aed1bd067529c667984d7929d92d Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Thu, 3 Oct 2013 18:12:34 +0300
Subject: usb: musb: omap2430: Don't use omap_get_control_dev()

omap_get_control_dev() is being deprecated as it doesn't support
multiple instances. As control device is present only from OMAP4
onwards which supports DT only, we use phandles to get the
reference to the control device.

Also get rid of "ti,has-mailbox" property as it is redundant and
we can determine that from whether "ctrl-module" property is present
or not. Get rid of has_mailbox from musb_hdrc_platform_data as well.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/devicetree/bindings/usb/omap-usb.txt |  4 ----
 drivers/usb/musb/omap2430.c                        | 25 ++++++++++++----------
 include/linux/usb/musb.h                           |  2 --
 3 files changed, 14 insertions(+), 17 deletions(-)

diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt b/Documentation/devicetree/bindings/usb/omap-usb.txt
index 9add35c37ebc..090e5e22bd2b 100644
--- a/Documentation/devicetree/bindings/usb/omap-usb.txt
+++ b/Documentation/devicetree/bindings/usb/omap-usb.txt
@@ -3,9 +3,6 @@ OMAP GLUE AND OTHER OMAP SPECIFIC COMPONENTS
 OMAP MUSB GLUE
  - compatible : Should be "ti,omap4-musb" or "ti,omap3-musb"
  - ti,hwmods : must be "usb_otg_hs"
- - ti,has-mailbox : to specify that omap uses an external mailbox
-   (in control module) to communicate with the musb core during device connect
-   and disconnect.
  - multipoint : Should be "1" indicating the musb controller supports
    multipoint. This is a MUSB configuration-specific setting.
  - num-eps : Specifies the number of endpoints. This is also a
@@ -31,7 +28,6 @@ SOC specific device node entry
 usb_otg_hs: usb_otg_hs@4a0ab000 {
 	compatible = "ti,omap4-musb";
 	ti,hwmods = "usb_otg_hs";
-	ti,has-mailbox;
 	multipoint = <1>;
 	num-eps = <16>;
 	ram-bits = <12>;
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index d0fc4d9c7b80..9eab645fed8b 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -38,6 +38,7 @@
 #include <linux/delay.h>
 #include <linux/usb/musb-omap.h>
 #include <linux/usb/omap_control_usb.h>
+#include <linux/of_platform.h>
 
 #include "musb_core.h"
 #include "omap2430.h"
@@ -524,8 +525,12 @@ static int omap2430_probe(struct platform_device *pdev)
 	glue->dev			= &pdev->dev;
 	glue->musb			= musb;
 	glue->status			= OMAP_MUSB_UNKNOWN;
+	glue->control_otghs = ERR_PTR(-ENODEV);
 
 	if (np) {
+		struct device_node *control_node;
+		struct platform_device *control_pdev;
+
 		pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
 		if (!pdata) {
 			dev_err(&pdev->dev,
@@ -554,22 +559,20 @@ static int omap2430_probe(struct platform_device *pdev)
 		of_property_read_u32(np, "ram-bits", (u32 *)&config->ram_bits);
 		of_property_read_u32(np, "power", (u32 *)&pdata->power);
 		config->multipoint = of_property_read_bool(np, "multipoint");
-		pdata->has_mailbox = of_property_read_bool(np,
-		    "ti,has-mailbox");
 
 		pdata->board_data	= data;
 		pdata->config		= config;
-	}
 
-	if (pdata->has_mailbox) {
-		glue->control_otghs = omap_get_control_dev();
-		if (IS_ERR(glue->control_otghs)) {
-			dev_vdbg(&pdev->dev, "Failed to get control device\n");
-			ret = PTR_ERR(glue->control_otghs);
-			goto err2;
+		control_node = of_parse_phandle(np, "ctrl-module", 0);
+		if (control_node) {
+			control_pdev = of_find_device_by_node(control_node);
+			if (!control_pdev) {
+				dev_err(&pdev->dev, "Failed to get control device\n");
+				ret = -EINVAL;
+				goto err2;
+			}
+			glue->control_otghs = &control_pdev->dev;
 		}
-	} else {
-		glue->control_otghs = ERR_PTR(-ENODEV);
 	}
 	pdata->platform_ops		= &omap2430_ops;
 
diff --git a/include/linux/usb/musb.h b/include/linux/usb/musb.h
index 053c26841cc3..eb505250940a 100644
--- a/include/linux/usb/musb.h
+++ b/include/linux/usb/musb.h
@@ -99,8 +99,6 @@ struct musb_hdrc_platform_data {
 	/* MUSB_HOST, MUSB_PERIPHERAL, or MUSB_OTG */
 	u8		mode;
 
-	u8		has_mailbox:1;
-
 	/* for clk_get() */
 	const char	*clock;
 
-- 
cgit 


From 0bb85dc2d3f7117b6686661aba4a88dedead0c8a Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Thu, 3 Oct 2013 18:12:35 +0300
Subject: usb: phy: omap: get rid of omap_get_control_dev()

This function was preventing us from supporting multiple
instances. Get rid of it. Since we support DT boots only,
users can get the control device phandle from the DT node.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/phy/phy-omap-control.c   | 31 ++++++++++---------------------
 include/linux/usb/omap_control_usb.h |  5 -----
 2 files changed, 10 insertions(+), 26 deletions(-)

diff --git a/drivers/usb/phy/phy-omap-control.c b/drivers/usb/phy/phy-omap-control.c
index 1c8a7c5ccb9b..09c5ace1edd8 100644
--- a/drivers/usb/phy/phy-omap-control.c
+++ b/drivers/usb/phy/phy-omap-control.c
@@ -26,26 +26,6 @@
 #include <linux/clk.h>
 #include <linux/usb/omap_control_usb.h>
 
-static struct omap_control_usb *control_usb;
-
-/**
- * omap_get_control_dev - returns the device pointer for this control device
- *
- * This API should be called to get the device pointer for this control
- * module device. This device pointer should be used for called other
- * exported API's in this driver.
- *
- * To be used by PHY driver and glue driver.
- */
-struct device *omap_get_control_dev(void)
-{
-	if (!control_usb)
-		return ERR_PTR(-ENODEV);
-
-	return control_usb->dev;
-}
-EXPORT_SYMBOL_GPL(omap_get_control_dev);
-
 /**
  * omap_control_usb_phy_power - power on/off the phy using control module reg
  * @dev: the control module device
@@ -182,11 +162,19 @@ void omap_control_usb_set_mode(struct device *dev,
 {
 	struct omap_control_usb	*ctrl_usb;
 
-	if (IS_ERR(dev) || control_usb->type != OMAP_CTRL_TYPE_OTGHS)
+	if (IS_ERR(dev) || !dev)
 		return;
 
 	ctrl_usb = dev_get_drvdata(dev);
 
+	if (!ctrl_usb) {
+		dev_err(dev, "Invalid control usb device\n");
+		return;
+	}
+
+	if (ctrl_usb->type != OMAP_CTRL_TYPE_OTGHS)
+		return;
+
 	switch (mode) {
 	case USB_MODE_HOST:
 		omap_control_usb_host_mode(ctrl_usb);
@@ -237,6 +225,7 @@ static int omap_control_usb_probe(struct platform_device *pdev)
 {
 	struct resource	*res;
 	const struct of_device_id *of_id;
+	struct omap_control_usb *control_usb;
 
 	of_id = of_match_device(of_match_ptr(omap_control_usb_id_table),
 								&pdev->dev);
diff --git a/include/linux/usb/omap_control_usb.h b/include/linux/usb/omap_control_usb.h
index 61b889a9c67b..596b01918813 100644
--- a/include/linux/usb/omap_control_usb.h
+++ b/include/linux/usb/omap_control_usb.h
@@ -65,15 +65,10 @@ enum omap_control_usb_mode {
 #define OMAP_CTRL_USB2_PHY_PD		BIT(28)
 
 #if IS_ENABLED(CONFIG_OMAP_CONTROL_USB)
-extern struct device *omap_get_control_dev(void);
 extern void omap_control_usb_phy_power(struct device *dev, int on);
 extern void omap_control_usb_set_mode(struct device *dev,
 	enum omap_control_usb_mode mode);
 #else
-static inline struct device *omap_get_control_dev(void)
-{
-	return ERR_PTR(-ENODEV);
-}
 
 static inline void omap_control_usb_phy_power(struct device *dev, int on)
 {
-- 
cgit 


From 470019a4c19f64626e336935114fe977b87eb99b Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Thu, 3 Oct 2013 18:12:36 +0300
Subject: ARM: dts: omap4: update omap-control-usb nodes

Split otghs_ctrl and USB2 PHY power-down into separate
omap-control-usb nodes. Get rid of "ti,type" property.

Also get rid of "ti,has-mailbox" property from usb_otg_hs
node and provide the ctrl-module phandle.

CC: Benoit Cousson <bcousson@baylibre.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/boot/dts/omap4.dtsi | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 1e8e2fe71de9..ea4054bfdfd4 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -519,7 +519,7 @@
 			usb2_phy: usb2phy@4a0ad080 {
 				compatible = "ti,omap-usb2";
 				reg = <0x4a0ad080 0x58>;
-				ctrl-module = <&omap_control_usb>;
+				ctrl-module = <&omap_control_usb2phy>;
 				#phy-cells = <0>;
 			};
 		};
@@ -644,12 +644,16 @@
 			};
 		};
 
-		omap_control_usb: omap-control-usb@4a002300 {
-			compatible = "ti,omap-control-usb";
-			reg = <0x4a002300 0x4>,
-			      <0x4a00233c 0x4>;
-			reg-names = "control_dev_conf", "otghs_control";
-			ti,type = <1>;
+		omap_control_usb2phy: control-phy@4a002300 {
+			compatible = "ti,control-phy-usb2";
+			reg = <0x4a002300 0x4>;
+			reg-names = "power";
+		};
+
+		omap_control_usbotg: control-phy@4a00233c {
+			compatible = "ti,control-phy-otghs";
+			reg = <0x4a00233c 0x4>;
+			reg-names = "otghs_control";
 		};
 
 		usb_otg_hs: usb_otg_hs@4a0ab000 {
@@ -664,7 +668,7 @@
 			multipoint = <1>;
 			num-eps = <16>;
 			ram-bits = <12>;
-			ti,has-mailbox;
+			ctrl-module = <&omap_control_usbotg>;
 		};
 	};
 };
-- 
cgit 


From b297c292900a78ca624d3bc30a7580565ae11def Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Thu, 3 Oct 2013 18:12:37 +0300
Subject: ARM: dts: omap5: update omap-control-usb node

Split USB2 PHY and USB3 PHY into separate omap-control-usb
nodes. Get rid of "ti,type" property.

CC: Benoit Cousson <bcousson@baylibre.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/boot/dts/omap5.dtsi | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
index 7cdea1bfea09..c0ec6dce30fe 100644
--- a/arch/arm/boot/dts/omap5.dtsi
+++ b/arch/arm/boot/dts/omap5.dtsi
@@ -626,12 +626,16 @@
 			hw-caps-temp-alert;
 		};
 
-		omap_control_usb: omap-control-usb@4a002300 {
-			compatible = "ti,omap-control-usb";
-			reg = <0x4a002300 0x4>,
-			      <0x4a002370 0x4>;
-			reg-names = "control_dev_conf", "phy_power_usb";
-			ti,type = <2>;
+		omap_control_usb2phy: control-phy@4a002300 {
+			compatible = "ti,control-phy-usb2";
+			reg = <0x4a002300 0x4>;
+			reg-names = "power";
+		};
+
+		omap_control_usb3phy: control-phy@4a002370 {
+			compatible = "ti,control-phy-pipe3";
+			reg = <0x4a002370 0x4>;
+			reg-names = "power";
 		};
 
 		omap_dwc3@4a020000 {
@@ -662,7 +666,7 @@
 			usb2_phy: usb2phy@4a084000 {
 				compatible = "ti,omap-usb2";
 				reg = <0x4a084000 0x7c>;
-				ctrl-module = <&omap_control_usb>;
+				ctrl-module = <&omap_control_usb2phy>;
 			};
 
 			usb3_phy: usb3phy@4a084400 {
@@ -671,7 +675,7 @@
 				      <0x4a084800 0x64>,
 				      <0x4a084c00 0x40>;
 				reg-names = "phy_rx", "phy_tx", "pll_ctrl";
-				ctrl-module = <&omap_control_usb>;
+				ctrl-module = <&omap_control_usb3phy>;
 			};
 		};
 
-- 
cgit 


From e036cc5727eb6d471442d2a9218990aa11215400 Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Mon, 16 Sep 2013 23:44:46 +0300
Subject: mei: simplify mei_open error handling

1. Perform simple checks first and only then attempt to allocate cl structure.
2. Remove open_handler_count test, this is already checked in mei_cl_link function
3. return -EMFILE instead of -ENOENT as expected by user space

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/client.c |  8 +++++++-
 drivers/misc/mei/main.c   | 31 ++++++++++++++-----------------
 2 files changed, 21 insertions(+), 18 deletions(-)

diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index fbd319c506e6..88770e040dd1 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -288,7 +288,13 @@ int mei_cl_link(struct mei_cl *cl, int id)
 
 	if (id >= MEI_CLIENTS_MAX) {
 		dev_err(&dev->pdev->dev, "id exceded %d", MEI_CLIENTS_MAX) ;
-		return -ENOENT;
+		return -EMFILE;
+	}
+
+	if (dev->open_handle_count >= MEI_MAX_OPEN_HANDLE_COUNT) {
+		dev_err(&dev->pdev->dev, "open_handle_count exceded %d",
+			MEI_MAX_OPEN_HANDLE_COUNT);
+		return -EMFILE;
 	}
 
 	if (dev->open_handle_count >= MEI_MAX_OPEN_HANDLE_COUNT) {
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index c71420ef1e37..87ab5ca1d633 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -60,48 +60,45 @@ static int mei_open(struct inode *inode, struct file *file)
 
 	int err;
 
-	err = -ENODEV;
 	if (!misc->parent)
-		goto out;
+		return -ENODEV;
 
 	pdev = container_of(misc->parent, struct pci_dev, dev);
 
 	dev = pci_get_drvdata(pdev);
 	if (!dev)
-		goto out;
+		return -ENODEV;
 
 	mutex_lock(&dev->device_lock);
-	err = -ENOMEM;
-	cl = mei_cl_allocate(dev);
-	if (!cl)
-		goto out_unlock;
+
+	cl = NULL;
 
 	err = -ENODEV;
 	if (dev->dev_state != MEI_DEV_ENABLED) {
 		dev_dbg(&dev->pdev->dev, "dev_state != MEI_ENABLED  dev_state = %s\n",
 		    mei_dev_state_str(dev->dev_state));
-		goto out_unlock;
-	}
-	err = -EMFILE;
-	if (dev->open_handle_count >= MEI_MAX_OPEN_HANDLE_COUNT) {
-		dev_err(&dev->pdev->dev, "open_handle_count exceded %d",
-			MEI_MAX_OPEN_HANDLE_COUNT);
-		goto out_unlock;
+		goto err_unlock;
 	}
 
+	err = -ENOMEM;
+	cl = mei_cl_allocate(dev);
+	if (!cl)
+		goto err_unlock;
+
+	/* open_handle_count check is handled in the mei_cl_link */
 	err = mei_cl_link(cl, MEI_HOST_CLIENT_ID_ANY);
 	if (err)
-		goto out_unlock;
+		goto err_unlock;
 
 	file->private_data = cl;
+
 	mutex_unlock(&dev->device_lock);
 
 	return nonseekable_open(inode, file);
 
-out_unlock:
+err_unlock:
 	mutex_unlock(&dev->device_lock);
 	kfree(cl);
-out:
 	return err;
 }
 
-- 
cgit 


From 22f96a0eb6c62b570621d77dacbf2589a6de2997 Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Mon, 16 Sep 2013 23:44:47 +0300
Subject: mei: revamp open handler counts

Make open counter to be incremented and decremented
from mei_cl_link and mei_cl_unlik function respectively

Nfc was assuming symmetric linking API and thus open handler
count was never decreased. This patch fixes that.
We need to add separate open hander count for amthif which
is handled out of link/unlink functions and doesn't break
the symmetric API.

Last we do not waste clients slots if amthif or wd are not present
in the device. we don't need to allocates slots ahead
it is all covered by link/unlink before the devices is responding
to user space connection and thus not racing on allocation

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/amthif.c  |  5 +++--
 drivers/misc/mei/client.c  | 19 +++++++++++++++----
 drivers/misc/mei/init.c    |  5 -----
 drivers/misc/mei/main.c    |  6 +-----
 drivers/misc/mei/mei_dev.h |  1 +
 5 files changed, 20 insertions(+), 16 deletions(-)

diff --git a/drivers/misc/mei/amthif.c b/drivers/misc/mei/amthif.c
index 226c3f3cd3e8..4f259d411a2c 100644
--- a/drivers/misc/mei/amthif.c
+++ b/drivers/misc/mei/amthif.c
@@ -58,6 +58,7 @@ void mei_amthif_reset_params(struct mei_device *dev)
 	dev->iamthif_state = MEI_IAMTHIF_IDLE;
 	dev->iamthif_timer = 0;
 	dev->iamthif_stall_timer = 0;
+	dev->iamthif_open_count = 0;
 }
 
 /**
@@ -731,8 +732,8 @@ static bool mei_clear_lists(struct mei_device *dev, struct file *file)
 */
 int mei_amthif_release(struct mei_device *dev, struct file *file)
 {
-	if (dev->open_handle_count > 0)
-		dev->open_handle_count--;
+	if (dev->iamthif_open_count > 0)
+		dev->iamthif_open_count--;
 
 	if (dev->iamthif_file_object == file &&
 	    dev->iamthif_state != MEI_IAMTHIF_IDLE) {
diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index 88770e040dd1..a48c0e71e69d 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -275,6 +275,7 @@ struct mei_cl_cb *mei_cl_find_read_cb(struct mei_cl *cl)
 int mei_cl_link(struct mei_cl *cl, int id)
 {
 	struct mei_device *dev;
+	long open_handle_count;
 
 	if (WARN_ON(!cl || !cl->dev))
 		return -EINVAL;
@@ -291,7 +292,8 @@ int mei_cl_link(struct mei_cl *cl, int id)
 		return -EMFILE;
 	}
 
-	if (dev->open_handle_count >= MEI_MAX_OPEN_HANDLE_COUNT) {
+	open_handle_count = dev->open_handle_count + dev->iamthif_open_count;
+	if (open_handle_count >= MEI_MAX_OPEN_HANDLE_COUNT) {
 		dev_err(&dev->pdev->dev, "open_handle_count exceded %d",
 			MEI_MAX_OPEN_HANDLE_COUNT);
 		return -EMFILE;
@@ -337,6 +339,17 @@ int mei_cl_unlink(struct mei_cl *cl)
 
 	cl_dbg(dev, cl, "unlink client");
 
+	if (dev->open_handle_count > 0)
+		dev->open_handle_count--;
+
+	/* never clear the 0 bit */
+	if (cl->host_client_id)
+		clear_bit(cl->host_client_id, dev->host_clients_map);
+
+	list_del_init(&cl->link);
+
+	cl->state = MEI_FILE_INITIALIZING;
+
 	list_del_init(&cl->link);
 
 	return 0;
@@ -358,10 +371,8 @@ void mei_host_client_init(struct work_struct *work)
 	/*
 	 * Reserving the first three client IDs
 	 * 0: Reserved for MEI Bus Message communications
-	 * 1: Reserved for Watchdog
-	 * 2: Reserved for AMTHI
 	 */
-	bitmap_set(dev->host_clients_map, 0, 3);
+	bitmap_set(dev->host_clients_map, 0, 1);
 
 	for (i = 0; i < dev->me_clients_num; i++) {
 		client_props = &dev->me_clients[i].props;
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index 6197018e2f16..a7d29a7dcab2 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -165,12 +165,7 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
 		/* remove entry if already in list */
 		dev_dbg(&dev->pdev->dev, "remove iamthif and wd from the file list.\n");
 		mei_cl_unlink(&dev->wd_cl);
-		if (dev->open_handle_count > 0)
-			dev->open_handle_count--;
 		mei_cl_unlink(&dev->iamthif_cl);
-		if (dev->open_handle_count > 0)
-			dev->open_handle_count--;
-
 		mei_amthif_reset_params(dev);
 		memset(&dev->wr_ext_msg, 0, sizeof(dev->wr_ext_msg));
 	}
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index 87ab5ca1d633..9661a812f550 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -141,10 +141,6 @@ static int mei_release(struct inode *inode, struct file *file)
 	    cl->host_client_id,
 	    cl->me_client_id);
 
-	if (dev->open_handle_count > 0) {
-		clear_bit(cl->host_client_id, dev->host_clients_map);
-		dev->open_handle_count--;
-	}
 	mei_cl_unlink(cl);
 
 
@@ -498,11 +494,11 @@ static int mei_ioctl_connect_client(struct file *file,
 			rets = -ENODEV;
 			goto end;
 		}
-		clear_bit(cl->host_client_id, dev->host_clients_map);
 		mei_cl_unlink(cl);
 
 		kfree(cl);
 		cl = NULL;
+		dev->iamthif_open_count++;
 		file->private_data = &dev->iamthif_cl;
 
 		client = &data->out_client_properties;
diff --git a/drivers/misc/mei/mei_dev.h b/drivers/misc/mei/mei_dev.h
index 456b322013e2..406f68e05b4e 100644
--- a/drivers/misc/mei/mei_dev.h
+++ b/drivers/misc/mei/mei_dev.h
@@ -414,6 +414,7 @@ struct mei_device {
 	struct file *iamthif_file_object;
 	struct mei_cl iamthif_cl;
 	struct mei_cl_cb *iamthif_current_cb;
+	long iamthif_open_count;
 	int iamthif_mtu;
 	unsigned long iamthif_timer;
 	u32 iamthif_stall_timer;
-- 
cgit 


From af68fb65557dee58918822a470cd64fd76ed837e Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Mon, 16 Sep 2013 23:44:48 +0300
Subject: mei: amthif: mei_amthif_host_init: propagate errors from called
 functions

propagate error codes from called functions, they are correct.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/amthif.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/misc/mei/amthif.c b/drivers/misc/mei/amthif.c
index 4f259d411a2c..d22c6864508b 100644
--- a/drivers/misc/mei/amthif.c
+++ b/drivers/misc/mei/amthif.c
@@ -79,8 +79,10 @@ int mei_amthif_host_init(struct mei_device *dev)
 
 	i = mei_me_cl_by_uuid(dev, &mei_amthif_guid);
 	if (i < 0) {
-		dev_info(&dev->pdev->dev, "amthif: failed to find the client\n");
-		return -ENOENT;
+		ret = i;
+		dev_info(&dev->pdev->dev,
+			"amthif: failed to find the client %d\n", ret);
+		return ret;
 	}
 
 	cl->me_client_id = dev->me_clients[i].client_id;
@@ -107,8 +109,9 @@ int mei_amthif_host_init(struct mei_device *dev)
 	ret = mei_cl_link(cl, MEI_IAMTHIF_HOST_CLIENT_ID);
 
 	if (ret < 0) {
-		dev_err(&dev->pdev->dev, "amthif: failed link client\n");
-		return -ENOENT;
+		dev_err(&dev->pdev->dev,
+			"amthif: failed link client %d\n", ret);
+		return ret;
 	}
 
 	cl->state = MEI_FILE_CONNECTING;
-- 
cgit 


From 6078e0bef2236f323377c53e77e26288fb52ee23 Mon Sep 17 00:00:00 2001
From: Sudeep Dutt <sudeep.dutt@intel.com>
Date: Wed, 2 Oct 2013 16:09:00 -0700
Subject: misc: mic: Fix build issues in sample daemon.

Specifying gcc format function attribute for mpsslog(..) and
building on 32 bit systems exposed a few build issues in the
sample MIC daemon which are fixed by this patch. Some of these
changes were authored by Joe Perches @
https://lkml.org/lkml/2013/9/27/419

Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Caz Yokoyama <Caz.Yokoyama@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/mic/mpssd/mpssd.c | 22 +++++++++++-----------
 Documentation/mic/mpssd/mpssd.h |  1 +
 2 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/Documentation/mic/mpssd/mpssd.c b/Documentation/mic/mpssd/mpssd.c
index f9327a29ae4c..82c6bc2e3cb6 100644
--- a/Documentation/mic/mpssd/mpssd.c
+++ b/Documentation/mic/mpssd/mpssd.c
@@ -362,9 +362,9 @@ static inline void verify_out_len(struct mic_info *mic,
 	struct mic_copy_desc *copy)
 {
 	if (copy->out_len != sum_iovec_len(copy)) {
-		mpsslog("%s %s %d BUG copy->out_len 0x%x len 0x%x\n",
+		mpsslog("%s %s %d BUG copy->out_len 0x%x len 0x%zx\n",
 			mic->name, __func__, __LINE__,
-				copy->out_len, sum_iovec_len(copy));
+			copy->out_len, sum_iovec_len(copy));
 		assert(copy->out_len == sum_iovec_len(copy));
 	}
 }
@@ -377,7 +377,7 @@ disp_iovec(struct mic_info *mic, struct mic_copy_desc *copy,
 	int i;
 
 	for (i = 0; i < copy->iovcnt; i++)
-		mpsslog("%s %s %d copy->iov[%d] addr %p len 0x%lx\n",
+		mpsslog("%s %s %d copy->iov[%d] addr %p len 0x%zx\n",
 			mic->name, s, line, i,
 			copy->iov[i].iov_base, copy->iov[i].iov_len);
 }
@@ -630,7 +630,7 @@ virtio_net(void *arg)
 				disp_iovec(mic, &copy, __func__, __LINE__);
 				mpsslog("%s %s %d read failed %s ", mic->name,
 					__func__, __LINE__, strerror(errno));
-				mpsslog("cnt %d sum %d\n",
+				mpsslog("cnt %d sum %zd\n",
 					copy.iovcnt, sum_iovec_len(&copy));
 			}
 		}
@@ -680,8 +680,8 @@ virtio_net(void *arg)
 					if (len != sum_iovec_len(&copy)) {
 						mpsslog("Tun write failed %s ",
 							strerror(errno));
-						mpsslog("len 0x%x ", len);
-						mpsslog("read_len 0x%x\n",
+						mpsslog("len 0x%zx ", len);
+						mpsslog("read_len 0x%zx\n",
 							sum_iovec_len(&copy));
 					} else {
 #ifdef DEBUG
@@ -827,7 +827,7 @@ virtio_console(void *arg)
 				mpsslog("%s %s %d read failed %s ",
 					mic->name, __func__, __LINE__,
 					strerror(errno));
-				mpsslog("cnt %d sum %d\n",
+				mpsslog("cnt %d sum %zd\n",
 					copy.iovcnt, sum_iovec_len(&copy));
 			}
 		}
@@ -859,8 +859,8 @@ virtio_console(void *arg)
 					if (len != sum_iovec_len(&copy)) {
 						mpsslog("Tun write failed %s ",
 							strerror(errno));
-						mpsslog("len 0x%x ", len);
-						mpsslog("read_len 0x%x\n",
+						mpsslog("len 0x%zx ", len);
+						mpsslog("read_len 0x%zx\n",
 							sum_iovec_len(&copy));
 					} else {
 #ifdef DEBUG
@@ -953,7 +953,7 @@ set_backend_file(struct mic_info *mic)
 		return false;
 	mic->mic_virtblk.backend_file = malloc(strlen(evv) + 1);
 	if (mic->mic_virtblk.backend_file == NULL) {
-		mpsslog("can't allocate memory\n", mic->name, mic->id);
+		mpsslog("%s %d can't allocate memory\n", mic->name, mic->id);
 		return false;
 	}
 	strcpy(mic->mic_virtblk.backend_file, evv + 1);
@@ -1026,7 +1026,7 @@ close_backend(struct mic_info *mic)
 static bool
 start_virtblk(struct mic_info *mic, struct mic_vring *vring)
 {
-	if (((__u64)&virtblk_dev_page.blk_config % 8) != 0) {
+	if (((unsigned long)&virtblk_dev_page.blk_config % 8) != 0) {
 		mpsslog("%s: blk_config is not 8 byte aligned.\n",
 			mic->name);
 		return false;
diff --git a/Documentation/mic/mpssd/mpssd.h b/Documentation/mic/mpssd/mpssd.h
index b6dee38ca5b1..ccd589ff9146 100644
--- a/Documentation/mic/mpssd/mpssd.h
+++ b/Documentation/mic/mpssd/mpssd.h
@@ -94,6 +94,7 @@ struct mic_info {
 	struct mic_info *next;
 };
 
+__attribute__((format(printf, 1, 2)))
 void mpsslog(char *format, ...);
 char *readsysfs(char *dir, char *entry);
 int setsysfs(char *dir, char *entry, char *value);
-- 
cgit 


From bc3426897652c05825f8fd5fc1727aac83a2d8bd Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Wed, 2 Oct 2013 13:46:47 +0200
Subject: misc: bh1780: probe from compatible string

Currently the BH1780GLI I2C driver relies on the device tree node
having the right name, but this is fragile. Use the compatible
string to probe the driver instead.

Acked-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/bh1780gli.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/misc/bh1780gli.c b/drivers/misc/bh1780gli.c
index 057580e026c0..48ea33d15a79 100644
--- a/drivers/misc/bh1780gli.c
+++ b/drivers/misc/bh1780gli.c
@@ -23,6 +23,7 @@
 #include <linux/platform_device.h>
 #include <linux/delay.h>
 #include <linux/module.h>
+#include <linux/of.h>
 
 #define BH1780_REG_CONTROL	0x80
 #define BH1780_REG_PARTID	0x8A
@@ -244,6 +245,15 @@ static const struct i2c_device_id bh1780_id[] = {
 	{ },
 };
 
+#ifdef CONFIG_OF
+static const struct of_device_id of_bh1780_match[] = {
+	{ .compatible = "rohm,bh1780gli", },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, of_bh1780_match);
+#endif
+
 static struct i2c_driver bh1780_driver = {
 	.probe		= bh1780_probe,
 	.remove		= bh1780_remove,
@@ -251,6 +261,7 @@ static struct i2c_driver bh1780_driver = {
 	.driver = {
 		.name = "bh1780",
 		.pm	= &bh1780_pm,
+		.of_match_table = of_match_ptr(of_bh1780_match),
 	},
 };
 
-- 
cgit 


From 12b3af3096cdfb0613da374021167868c6abc9ce Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Mon, 30 Sep 2013 09:28:36 +0200
Subject: char: hwicap: Remove unnecessary dev_set_drvdata()

Driver core clears the driver data to NULL after device_release
or on probe failure, so just remove it from here.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/char/xilinx_hwicap/xilinx_hwicap.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.c b/drivers/char/xilinx_hwicap/xilinx_hwicap.c
index a7f65c2b2cb5..f6345f932e46 100644
--- a/drivers/char/xilinx_hwicap/xilinx_hwicap.c
+++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.c
@@ -731,7 +731,6 @@ static int hwicap_remove(struct device *dev)
 	iounmap(drvdata->base_address);
 	release_mem_region(drvdata->mem_start, drvdata->mem_size);
 	kfree(drvdata);
-	dev_set_drvdata(dev, NULL);
 
 	mutex_lock(&icap_sem);
 	probed_devices[MINOR(dev->devt)-XHWICAP_MINOR] = 0;
-- 
cgit 


From c49436b657d0a56a6ad90d14a7c3041add7cf64d Mon Sep 17 00:00:00 2001
From: Tim Kryger <tim.kryger@linaro.org>
Date: Tue, 1 Oct 2013 10:18:08 -0700
Subject: serial: 8250_dw: Improve unwritable LCR workaround

When configured with UART_16550_COMPATIBLE=NO or in versions prior to
the introduction of this option, the Designware UART will ignore writes
to the LCR if the UART is busy.  The current workaround saves a copy of
the last written LCR and re-writes it in the ISR for a special interrupt
that is raised when a write was ignored.

Unfortunately, interrupts are typically disabled prior to performing a
sequence of register writes that include the LCR so the point at which
the retry occurs is too late.  An example is serial8250_do_set_termios()
where an ignored LCR write results in the baud divisor not being set and
instead a garbage character is sent out the transmitter.

Furthermore, since serial_port_out() offers no way to indicate failure,
a serious effort must be made to ensure that the LCR is actually updated
before returning back to the caller.  This is difficult, however, as a
UART that was busy during the first attempt is likely to still be busy
when a subsequent attempt is made unless some extra action is taken.

This updated workaround reads back the LCR after each write to confirm
that the new value was accepted by the hardware.  Should the hardware
ignore a write, the TX/RX FIFOs are cleared and the receive buffer read
before attempting to rewrite the LCR out of the hope that doing so will
force the UART into an idle state.  While this may seem unnecessarily
aggressive, writes to the LCR are used to change the baud rate, parity,
stop bit, or data length so the data that may be lost is likely not
important.  Admittedly, this is far from ideal but it seems to be the
best that can be done given the hardware limitations.

Lastly, the revised workaround doesn't touch the LCR in the ISR, so it
avoids the possibility of a "serial8250: too much work for irq" lock up.
This problem is rare in real situations but can be reproduced easily by
wiring up two UARTs and running the following commands.

  # stty -F /dev/ttyS1 echo
  # stty -F /dev/ttyS2 echo
  # cat /dev/ttyS1 &
  [1] 375
  # echo asdf > /dev/ttyS1
  asdf

  [   27.700000] serial8250: too much work for irq96
  [   27.700000] serial8250: too much work for irq96
  [   27.710000] serial8250: too much work for irq96
  [   27.710000] serial8250: too much work for irq96
  [   27.720000] serial8250: too much work for irq96
  [   27.720000] serial8250: too much work for irq96
  [   27.730000] serial8250: too much work for irq96
  [   27.730000] serial8250: too much work for irq96
  [   27.740000] serial8250: too much work for irq96

Signed-off-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Matt Porter <matt.porter@linaro.org>
Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/8250_dw.c | 41 ++++++++++++++++++++++++++++++---------
 1 file changed, 32 insertions(+), 9 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_dw.c b/drivers/tty/serial/8250/8250_dw.c
index d04a037d6b6f..4658e3e0ec42 100644
--- a/drivers/tty/serial/8250/8250_dw.c
+++ b/drivers/tty/serial/8250/8250_dw.c
@@ -57,7 +57,6 @@
 
 struct dw8250_data {
 	u8			usr_reg;
-	int			last_lcr;
 	int			last_mcr;
 	int			line;
 	struct clk		*clk;
@@ -77,17 +76,33 @@ static inline int dw8250_modify_msr(struct uart_port *p, int offset, int value)
 	return value;
 }
 
+static void dw8250_force_idle(struct uart_port *p)
+{
+	serial8250_clear_and_reinit_fifos(container_of
+					  (p, struct uart_8250_port, port));
+	(void)p->serial_in(p, UART_RX);
+}
+
 static void dw8250_serial_out(struct uart_port *p, int offset, int value)
 {
 	struct dw8250_data *d = p->private_data;
 
-	if (offset == UART_LCR)
-		d->last_lcr = value;
-
 	if (offset == UART_MCR)
 		d->last_mcr = value;
 
 	writeb(value, p->membase + (offset << p->regshift));
+
+	/* Make sure LCR write wasn't ignored */
+	if (offset == UART_LCR) {
+		int tries = 1000;
+		while (tries--) {
+			if (value == p->serial_in(p, UART_LCR))
+				return;
+			dw8250_force_idle(p);
+			writeb(value, p->membase + (UART_LCR << p->regshift));
+		}
+		dev_err(p->dev, "Couldn't set LCR to %d\n", value);
+	}
 }
 
 static unsigned int dw8250_serial_in(struct uart_port *p, int offset)
@@ -108,13 +123,22 @@ static void dw8250_serial_out32(struct uart_port *p, int offset, int value)
 {
 	struct dw8250_data *d = p->private_data;
 
-	if (offset == UART_LCR)
-		d->last_lcr = value;
-
 	if (offset == UART_MCR)
 		d->last_mcr = value;
 
 	writel(value, p->membase + (offset << p->regshift));
+
+	/* Make sure LCR write wasn't ignored */
+	if (offset == UART_LCR) {
+		int tries = 1000;
+		while (tries--) {
+			if (value == p->serial_in(p, UART_LCR))
+				return;
+			dw8250_force_idle(p);
+			writel(value, p->membase + (UART_LCR << p->regshift));
+		}
+		dev_err(p->dev, "Couldn't set LCR to %d\n", value);
+	}
 }
 
 static unsigned int dw8250_serial_in32(struct uart_port *p, int offset)
@@ -132,9 +156,8 @@ static int dw8250_handle_irq(struct uart_port *p)
 	if (serial8250_handle_irq(p, iir)) {
 		return 1;
 	} else if ((iir & UART_IIR_BUSY) == UART_IIR_BUSY) {
-		/* Clear the USR and write the LCR again. */
+		/* Clear the USR */
 		(void)p->serial_in(p, d->usr_reg);
-		p->serial_out(p, UART_LCR, d->last_lcr);
 
 		return 1;
 	}
-- 
cgit 


From 7ea816a0c353b668688ee6c79f5bbc5223d73f41 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 3 Oct 2013 11:46:28 +0200
Subject: serial: Remove unnecessary amba_set_drvdata()

Driver core clears the driver data to NULL after device_release
or on probe failure, so just remove it from here.

Driver core change:
"device-core: Ensure drvdata = NULL when no driver is bound"
(sha1: 0998d0631001288a5974afc0b2a5f568bcdecb4d)

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/amba-pl010.c | 3 ---
 drivers/tty/serial/amba-pl011.c | 3 ---
 2 files changed, 6 deletions(-)

diff --git a/drivers/tty/serial/amba-pl010.c b/drivers/tty/serial/amba-pl010.c
index 8b90f0b6dfdf..33bd8606be62 100644
--- a/drivers/tty/serial/amba-pl010.c
+++ b/drivers/tty/serial/amba-pl010.c
@@ -728,7 +728,6 @@ static int pl010_probe(struct amba_device *dev, const struct amba_id *id)
 	amba_set_drvdata(dev, uap);
 	ret = uart_add_one_port(&amba_reg, &uap->port);
 	if (ret) {
-		amba_set_drvdata(dev, NULL);
 		amba_ports[i] = NULL;
 		clk_put(uap->clk);
  unmap:
@@ -745,8 +744,6 @@ static int pl010_remove(struct amba_device *dev)
 	struct uart_amba_port *uap = amba_get_drvdata(dev);
 	int i;
 
-	amba_set_drvdata(dev, NULL);
-
 	uart_remove_one_port(&amba_reg, &uap->port);
 
 	for (i = 0; i < ARRAY_SIZE(amba_ports); i++)
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
index aaa22867e656..7203864992a5 100644
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -2147,7 +2147,6 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id)
 	amba_set_drvdata(dev, uap);
 	ret = uart_add_one_port(&amba_reg, &uap->port);
 	if (ret) {
-		amba_set_drvdata(dev, NULL);
 		amba_ports[i] = NULL;
 		pl011_dma_remove(uap);
 	}
@@ -2160,8 +2159,6 @@ static int pl011_remove(struct amba_device *dev)
 	struct uart_amba_port *uap = amba_get_drvdata(dev);
 	int i;
 
-	amba_set_drvdata(dev, NULL);
-
 	uart_remove_one_port(&amba_reg, &uap->port);
 
 	for (i = 0; i < ARRAY_SIZE(amba_ports); i++)
-- 
cgit 


From 5b8802143a4a3e38906879e78f2c1415c5b3db73 Mon Sep 17 00:00:00 2001
From: Weijie Yang <weijie.yang@samsung.com>
Date: Fri, 27 Sep 2013 17:09:07 +0800
Subject: fs/debugfs: add declaration for no CONFIG_DEBUG_FS

Two function declarations are absence if not define CONFIG_DEBUG_FS
in include/linux/debugfs.h

Signed-off-by: Weijie Yang <weijie.yang@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/debugfs.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index 263489d0788d..4d0b4d1aa132 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -206,6 +206,12 @@ static inline struct dentry *debugfs_create_size_t(const char *name, umode_t mod
 	return ERR_PTR(-ENODEV);
 }
 
+static inline struct dentry *debugfs_create_atomic_t(const char *name, umode_t mode,
+				     struct dentry *parent, atomic_t *value)
+{
+	return ERR_PTR(-ENODEV);
+}
+
 static inline struct dentry *debugfs_create_bool(const char *name, umode_t mode,
 						 struct dentry *parent,
 						 u32 *value)
@@ -227,6 +233,12 @@ static inline struct dentry *debugfs_create_regset32(const char *name,
 	return ERR_PTR(-ENODEV);
 }
 
+static inline int debugfs_print_regs32(struct seq_file *s, const struct debugfs_reg32 *regs,
+			 int nregs, void __iomem *base, char *prefix)
+{
+	return 0;
+}
+
 static inline bool debugfs_initialized(void)
 {
 	return false;
-- 
cgit 


From d69ac5a0bbcf1d9962883fb23e337caf5b38cec8 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 18 Sep 2013 17:15:35 -0400
Subject: sysfs: remove sysfs_addrm_cxt->parent_sd

sysfs_addrm_start/finish() enclose sysfs_dirent additions and
deletions and sysfs_addrm_cxt is used to record information necessary
to finish the operations.  Currently, sysfs_addrm_start() takes
@parent_sd, records it in sysfs_addrm_cxt, and assumes that all
operations in the block are performed under that @parent_sd.

This assumption has been fine until now but we want to make some
operations behave recursively and, while having @parent_sd recorded in
sysfs_addrm_cxt doesn't necessarily prevents that, it becomes
confusing.

This patch removes sysfs_addrm_cxt->parent_sd and makes
sysfs_add_one() take an explicit @parent_sd parameter.  Note that
sysfs_remove_one() doesn't need the extra argument as its parent is
always known from the target @sd.

While at it, add __acquires/releases() notations to
sysfs_addrm_start/finish() respectively.

This patch doesn't make any functional difference.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/dir.c     | 52 +++++++++++++++++++++++++++-------------------------
 fs/sysfs/file.c    |  4 ++--
 fs/sysfs/inode.c   |  2 +-
 fs/sysfs/symlink.c |  6 +++---
 fs/sysfs/sysfs.h   | 10 +++++-----
 5 files changed, 38 insertions(+), 36 deletions(-)

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index d23e66dfba74..671868914b5b 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -406,22 +406,19 @@ struct sysfs_dirent *sysfs_new_dirent(const char *name, umode_t mode, int type)
 /**
  *	sysfs_addrm_start - prepare for sysfs_dirent add/remove
  *	@acxt: pointer to sysfs_addrm_cxt to be used
- *	@parent_sd: parent sysfs_dirent
  *
- *	This function is called when the caller is about to add or
- *	remove sysfs_dirent under @parent_sd.  This function acquires
- *	sysfs_mutex.  @acxt is used to keep and pass context to
- *	other addrm functions.
+ *	This function is called when the caller is about to add or remove
+ *	sysfs_dirent.  This function acquires sysfs_mutex.  @acxt is used
+ *	to keep and pass context to other addrm functions.
  *
  *	LOCKING:
  *	Kernel thread context (may sleep).  sysfs_mutex is locked on
  *	return.
  */
-void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt,
-		       struct sysfs_dirent *parent_sd)
+void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt)
+	__acquires(sysfs_mutex)
 {
 	memset(acxt, 0, sizeof(*acxt));
-	acxt->parent_sd = parent_sd;
 
 	mutex_lock(&sysfs_mutex);
 }
@@ -430,10 +427,11 @@ void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt,
  *	__sysfs_add_one - add sysfs_dirent to parent without warning
  *	@acxt: addrm context to use
  *	@sd: sysfs_dirent to be added
+ *	@parent_sd: the parent sysfs_dirent to add @sd to
  *
- *	Get @acxt->parent_sd and set sd->s_parent to it and increment
- *	nlink of parent inode if @sd is a directory and link into the
- *	children list of the parent.
+ *	Get @parent_sd and set @sd->s_parent to it and increment nlink of
+ *	the parent inode if @sd is a directory and link into the children
+ *	list of the parent.
  *
  *	This function should be called between calls to
  *	sysfs_addrm_start() and sysfs_addrm_finish() and should be
@@ -446,20 +444,21 @@ void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt,
  *	0 on success, -EEXIST if entry with the given name already
  *	exists.
  */
-int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd)
+int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd,
+		    struct sysfs_dirent *parent_sd)
 {
 	struct sysfs_inode_attrs *ps_iattr;
 	int ret;
 
 	sd->s_hash = sysfs_name_hash(sd->s_name, sd->s_ns);
-	sd->s_parent = sysfs_get(acxt->parent_sd);
+	sd->s_parent = sysfs_get(parent_sd);
 
 	ret = sysfs_link_sibling(sd);
 	if (ret)
 		return ret;
 
 	/* Update timestamps on the parent */
-	ps_iattr = acxt->parent_sd->s_iattr;
+	ps_iattr = parent_sd->s_iattr;
 	if (ps_iattr) {
 		struct iattr *ps_iattrs = &ps_iattr->ia_iattr;
 		ps_iattrs->ia_ctime = ps_iattrs->ia_mtime = CURRENT_TIME;
@@ -493,10 +492,11 @@ static char *sysfs_pathname(struct sysfs_dirent *sd, char *path)
  *	sysfs_add_one - add sysfs_dirent to parent
  *	@acxt: addrm context to use
  *	@sd: sysfs_dirent to be added
+ *	@parent_sd: the parent sysfs_dirent to add @sd to
  *
- *	Get @acxt->parent_sd and set sd->s_parent to it and increment
- *	nlink of parent inode if @sd is a directory and link into the
- *	children list of the parent.
+ *	Get @parent_sd and set @sd->s_parent to it and increment nlink of
+ *	the parent inode if @sd is a directory and link into the children
+ *	list of the parent.
  *
  *	This function should be called between calls to
  *	sysfs_addrm_start() and sysfs_addrm_finish() and should be
@@ -509,17 +509,18 @@ static char *sysfs_pathname(struct sysfs_dirent *sd, char *path)
  *	0 on success, -EEXIST if entry with the given name already
  *	exists.
  */
-int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd)
+int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd,
+		  struct sysfs_dirent *parent_sd)
 {
 	int ret;
 
-	ret = __sysfs_add_one(acxt, sd);
+	ret = __sysfs_add_one(acxt, sd, parent_sd);
 	if (ret == -EEXIST) {
 		char *path = kzalloc(PATH_MAX, GFP_KERNEL);
 		WARN(1, KERN_WARNING
 		     "sysfs: cannot create duplicate filename '%s'\n",
 		     (path == NULL) ? sd->s_name
-				    : (sysfs_pathname(acxt->parent_sd, path),
+				    : (sysfs_pathname(parent_sd, path),
 				       strlcat(path, "/", PATH_MAX),
 				       strlcat(path, sd->s_name, PATH_MAX),
 				       path));
@@ -553,7 +554,7 @@ void sysfs_remove_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd)
 	sysfs_unlink_sibling(sd);
 
 	/* Update timestamps on the parent */
-	ps_iattr = acxt->parent_sd->s_iattr;
+	ps_iattr = sd->s_parent->s_iattr;
 	if (ps_iattr) {
 		struct iattr *ps_iattrs = &ps_iattr->ia_iattr;
 		ps_iattrs->ia_ctime = ps_iattrs->ia_mtime = CURRENT_TIME;
@@ -576,6 +577,7 @@ void sysfs_remove_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd)
  *	sysfs_mutex is released.
  */
 void sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt)
+	__releases(sysfs_mutex)
 {
 	/* release resources acquired by sysfs_addrm_start() */
 	mutex_unlock(&sysfs_mutex);
@@ -678,8 +680,8 @@ static int create_dir(struct kobject *kobj, struct sysfs_dirent *parent_sd,
 	sd->s_dir.kobj = kobj;
 
 	/* link in */
-	sysfs_addrm_start(&acxt, parent_sd);
-	rc = sysfs_add_one(&acxt, sd);
+	sysfs_addrm_start(&acxt);
+	rc = sysfs_add_one(&acxt, sd, parent_sd);
 	sysfs_addrm_finish(&acxt);
 
 	if (rc == 0)
@@ -772,7 +774,7 @@ static void remove_dir(struct sysfs_dirent *sd)
 {
 	struct sysfs_addrm_cxt acxt;
 
-	sysfs_addrm_start(&acxt, sd->s_parent);
+	sysfs_addrm_start(&acxt);
 	sysfs_remove_one(&acxt, sd);
 	sysfs_addrm_finish(&acxt);
 }
@@ -792,7 +794,7 @@ static void __sysfs_remove_dir(struct sysfs_dirent *dir_sd)
 		return;
 
 	pr_debug("sysfs %s: removing dir\n", dir_sd->s_name);
-	sysfs_addrm_start(&acxt, dir_sd);
+	sysfs_addrm_start(&acxt);
 	pos = rb_first(&dir_sd->s_dir.children);
 	while (pos) {
 		struct sysfs_dirent *sd = to_sysfs_dirent(pos);
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 4697019fafa3..1656a79ea6c0 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -502,8 +502,8 @@ int sysfs_add_file_mode_ns(struct sysfs_dirent *dir_sd,
 	sd->s_attr.attr = (void *)attr;
 	sysfs_dirent_init_lockdep(sd);
 
-	sysfs_addrm_start(&acxt, dir_sd);
-	rc = sysfs_add_one(&acxt, sd);
+	sysfs_addrm_start(&acxt);
+	rc = sysfs_add_one(&acxt, sd, dir_sd);
 	sysfs_addrm_finish(&acxt);
 
 	if (rc)
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index 07193d720d92..364c8873fbda 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -326,7 +326,7 @@ int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const char *name,
 		return -ENOENT;
 	}
 
-	sysfs_addrm_start(&acxt, dir_sd);
+	sysfs_addrm_start(&acxt);
 
 	sd = sysfs_find_dirent(dir_sd, name, ns);
 	if (sd)
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index 88c8bc5e8911..22ea2f5796f5 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -53,11 +53,11 @@ static int sysfs_do_create_link_sd(struct sysfs_dirent *parent_sd,
 	sd->s_symlink.target_sd = target_sd;
 	target_sd = NULL;	/* reference is now owned by the symlink */
 
-	sysfs_addrm_start(&acxt, parent_sd);
+	sysfs_addrm_start(&acxt);
 	if (warn)
-		error = sysfs_add_one(&acxt, sd);
+		error = sysfs_add_one(&acxt, sd, parent_sd);
 	else
-		error = __sysfs_add_one(&acxt, sd);
+		error = __sysfs_add_one(&acxt, sd, parent_sd);
 	sysfs_addrm_finish(&acxt);
 
 	if (error)
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index ee44fde199d0..4d1154411cdb 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -120,7 +120,6 @@ do {								\
  * Context structure to be used while adding/removing nodes.
  */
 struct sysfs_addrm_cxt {
-	struct sysfs_dirent	*parent_sd;
 	struct sysfs_dirent	*removed;
 };
 
@@ -154,10 +153,11 @@ extern const struct inode_operations sysfs_dir_inode_operations;
 struct dentry *sysfs_get_dentry(struct sysfs_dirent *sd);
 struct sysfs_dirent *sysfs_get_active(struct sysfs_dirent *sd);
 void sysfs_put_active(struct sysfs_dirent *sd);
-void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt,
-		       struct sysfs_dirent *parent_sd);
-int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd);
-int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd);
+void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt);
+int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd,
+		    struct sysfs_dirent *parent_sd);
+int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd,
+		  struct sysfs_dirent *parent_sd);
 void sysfs_remove_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd);
 void sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt);
 
-- 
cgit 


From 26ea12dec0c84133add937455be76d44fe253d85 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 18 Sep 2013 17:15:36 -0400
Subject: kobject: grab an extra reference on kobject->sd to allow duplicate
 deletes

sysfs currently has a rather weird behavior regarding removals.  A
directory removal would delete all files directly under it but
wouldn't recurse into subdirectories, which, while a bit inconsistent,
seems to make sense at the first glance as each directory is
supposedly associated with a kobject and each kobject can take care of
the directory deletion; however, this doesn't really hold as we have
groups which can be directories without a kobject associated with it
and require explicit deletions.

We're in the process of separating out sysfs from kboject / driver
core and want a consistent behavior.  A removal should delete either
only the specified node or everything under it.  I think it is helpful
to support recursive atomic removal and later patches will implement
it.

Such change means that a sysfs_dirent associated with kobject may be
deleted before the kobject itself is removed if one of its ancestor
gets removed before it.  As sysfs_remove_dir() puts the base ref, we
may end up with dangling pointer on descendants.  This can be solved
by holding an extra reference on the sd from kobject.

Acquire an extra reference on the associated sysfs_dirent on directory
creation and put it after removal.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/dir.c |  7 ++++++-
 lib/kobject.c  | 12 ++++++++++++
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 671868914b5b..105a7e2d1660 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -549,7 +549,12 @@ void sysfs_remove_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd)
 {
 	struct sysfs_inode_attrs *ps_iattr;
 
-	BUG_ON(sd->s_flags & SYSFS_FLAG_REMOVED);
+	/*
+	 * Removal can be called multiple times on the same node.  Only the
+	 * first invocation is effective and puts the base ref.
+	 */
+	if (sd->s_flags & SYSFS_FLAG_REMOVED)
+		return;
 
 	sysfs_unlink_sibling(sd);
 
diff --git a/lib/kobject.c b/lib/kobject.c
index 151089788c21..2fdf7fa9e9bd 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -76,6 +76,13 @@ static int create_dir(struct kobject *kobj)
 		if (error)
 			sysfs_remove_dir(kobj);
 	}
+
+	/*
+	 * @kobj->sd may be deleted by an ancestor going away.  Hold an
+	 * extra reference so that it stays until @kobj is gone.
+	 */
+	sysfs_get(kobj->sd);
+
 	return error;
 }
 
@@ -532,10 +539,15 @@ out:
  */
 void kobject_del(struct kobject *kobj)
 {
+	struct sysfs_dirent *sd;
+
 	if (!kobj)
 		return;
 
+	sd = kobj->sd;
 	sysfs_remove_dir(kobj);
+	sysfs_put(sd);
+
 	kobj->state_in_sysfs = 0;
 	kobj_kset_leave(kobj);
 	kobject_put(kobj->parent);
-- 
cgit 


From bcdde7e221a8750f9b62b6d0bd31b72ea4ad9309 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 18 Sep 2013 17:15:37 -0400
Subject: sysfs: make __sysfs_remove_dir() recursive

Currently, sysfs directory removal is inconsistent in that it would
remove any files directly under it but wouldn't recurse into
directories.  Thanks to group subdirectories, this doesn't even match
with kobject boundaries.  sysfs is in the process of being separated
out so that it can be used by multiple subsystems and we want to have
a consistent behavior - either removal of a sysfs_dirent should remove
every descendant entries or none instead of something inbetween.

This patch implements proper recursive removal in
__sysfs_remove_dir().  The function now walks its subtree in a
post-order walk to remove all descendants.

This is a behavior change but kobject / driver layer, which currently
is the only consumer, has already been updated to handle duplicate
removal attempts, so nothing should be broken after this change.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/dir.c | 75 +++++++++++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 64 insertions(+), 11 deletions(-)

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 105a7e2d1660..0cdfd8128d3e 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -789,27 +789,81 @@ void sysfs_remove_subdir(struct sysfs_dirent *sd)
 	remove_dir(sd);
 }
 
+static struct sysfs_dirent *sysfs_leftmost_descendant(struct sysfs_dirent *pos)
+{
+	struct sysfs_dirent *last;
+
+	while (true) {
+		struct rb_node *rbn;
+
+		last = pos;
+
+		if (sysfs_type(pos) != SYSFS_DIR)
+			break;
+
+		rbn = rb_first(&pos->s_dir.children);
+		if (!rbn)
+			break;
+
+		pos = to_sysfs_dirent(rbn);
+	}
+
+	return last;
+}
+
+/**
+ * sysfs_next_descendant_post - find the next descendant for post-order walk
+ * @pos: the current position (%NULL to initiate traversal)
+ * @root: sysfs_dirent whose descendants to walk
+ *
+ * Find the next descendant to visit for post-order traversal of @root's
+ * descendants.  @root is included in the iteration and the last node to be
+ * visited.
+ */
+static struct sysfs_dirent *sysfs_next_descendant_post(struct sysfs_dirent *pos,
+						       struct sysfs_dirent *root)
+{
+	struct rb_node *rbn;
+
+	lockdep_assert_held(&sysfs_mutex);
+
+	/* if first iteration, visit leftmost descendant which may be root */
+	if (!pos)
+		return sysfs_leftmost_descendant(root);
+
+	/* if we visited @root, we're done */
+	if (pos == root)
+		return NULL;
+
+	/* if there's an unvisited sibling, visit its leftmost descendant */
+	rbn = rb_next(&pos->s_rb);
+	if (rbn)
+		return sysfs_leftmost_descendant(to_sysfs_dirent(rbn));
+
+	/* no sibling left, visit parent */
+	return pos->s_parent;
+}
 
 static void __sysfs_remove_dir(struct sysfs_dirent *dir_sd)
 {
 	struct sysfs_addrm_cxt acxt;
-	struct rb_node *pos;
+	struct sysfs_dirent *pos, *next;
 
 	if (!dir_sd)
 		return;
 
 	pr_debug("sysfs %s: removing dir\n", dir_sd->s_name);
 	sysfs_addrm_start(&acxt);
-	pos = rb_first(&dir_sd->s_dir.children);
-	while (pos) {
-		struct sysfs_dirent *sd = to_sysfs_dirent(pos);
-		pos = rb_next(pos);
-		if (sysfs_type(sd) != SYSFS_DIR)
-			sysfs_remove_one(&acxt, sd);
-	}
-	sysfs_addrm_finish(&acxt);
 
-	remove_dir(dir_sd);
+	next = NULL;
+	do {
+		pos = next;
+		next = sysfs_next_descendant_post(pos, dir_sd);
+		if (pos)
+			sysfs_remove_one(&acxt, pos);
+	} while (next);
+
+	sysfs_addrm_finish(&acxt);
 }
 
 /**
@@ -820,7 +874,6 @@ static void __sysfs_remove_dir(struct sysfs_dirent *dir_sd)
  *	the directory before we remove the directory, and we've inlined
  *	what used to be sysfs_rmdir() below, instead of calling separately.
  */
-
 void sysfs_remove_dir(struct kobject *kobj)
 {
 	struct sysfs_dirent *sd = kobj->sd;
-- 
cgit 


From 250f7c3fee52b71457b4aa2cafadbd9f8b320b31 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 18 Sep 2013 17:15:38 -0400
Subject: sysfs: introduce [__]sysfs_remove()

Given a sysfs_dirent, there is no reason to have multiple versions of
removal functions.  A function which removes the specified
sysfs_dirent and its descendants is enough.

This patch intorduces [__}sysfs_remove() which replaces all internal
variations of removal functions.  This will be the only removal
function in the planned new sysfs_dirent based interface.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/dir.c   | 47 ++++++++++++++++++++++++-----------------------
 fs/sysfs/group.c |  4 ++--
 fs/sysfs/inode.c |  2 +-
 fs/sysfs/sysfs.h |  4 ++--
 4 files changed, 29 insertions(+), 28 deletions(-)

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 0cdfd8128d3e..b518afd0d11e 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -545,7 +545,8 @@ int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd,
  *	LOCKING:
  *	Determined by sysfs_addrm_start().
  */
-void sysfs_remove_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd)
+static void sysfs_remove_one(struct sysfs_addrm_cxt *acxt,
+			     struct sysfs_dirent *sd)
 {
 	struct sysfs_inode_attrs *ps_iattr;
 
@@ -775,20 +776,6 @@ const struct inode_operations sysfs_dir_inode_operations = {
 	.setxattr	= sysfs_setxattr,
 };
 
-static void remove_dir(struct sysfs_dirent *sd)
-{
-	struct sysfs_addrm_cxt acxt;
-
-	sysfs_addrm_start(&acxt);
-	sysfs_remove_one(&acxt, sd);
-	sysfs_addrm_finish(&acxt);
-}
-
-void sysfs_remove_subdir(struct sysfs_dirent *sd)
-{
-	remove_dir(sd);
-}
-
 static struct sysfs_dirent *sysfs_leftmost_descendant(struct sysfs_dirent *pos)
 {
 	struct sysfs_dirent *last;
@@ -844,25 +831,36 @@ static struct sysfs_dirent *sysfs_next_descendant_post(struct sysfs_dirent *pos,
 	return pos->s_parent;
 }
 
-static void __sysfs_remove_dir(struct sysfs_dirent *dir_sd)
+void __sysfs_remove(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd)
 {
-	struct sysfs_addrm_cxt acxt;
 	struct sysfs_dirent *pos, *next;
 
-	if (!dir_sd)
+	if (!sd)
 		return;
 
-	pr_debug("sysfs %s: removing dir\n", dir_sd->s_name);
-	sysfs_addrm_start(&acxt);
+	pr_debug("sysfs %s: removing\n", sd->s_name);
 
 	next = NULL;
 	do {
 		pos = next;
-		next = sysfs_next_descendant_post(pos, dir_sd);
+		next = sysfs_next_descendant_post(pos, sd);
 		if (pos)
-			sysfs_remove_one(&acxt, pos);
+			sysfs_remove_one(acxt, pos);
 	} while (next);
+}
 
+/**
+ * sysfs_remove - remove a sysfs_dirent recursively
+ * @sd: the sysfs_dirent to remove
+ *
+ * Remove @sd along with all its subdirectories and files.
+ */
+void sysfs_remove(struct sysfs_dirent *sd)
+{
+	struct sysfs_addrm_cxt acxt;
+
+	sysfs_addrm_start(&acxt);
+	__sysfs_remove(&acxt, sd);
 	sysfs_addrm_finish(&acxt);
 }
 
@@ -882,7 +880,10 @@ void sysfs_remove_dir(struct kobject *kobj)
 	kobj->sd = NULL;
 	spin_unlock(&sysfs_assoc_lock);
 
-	__sysfs_remove_dir(sd);
+	if (sd) {
+		WARN_ON_ONCE(sysfs_type(sd) != SYSFS_DIR);
+		sysfs_remove(sd);
+	}
 }
 
 int sysfs_rename(struct sysfs_dirent *sd, struct sysfs_dirent *new_parent_sd,
diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c
index 2dae55c4f7dc..1898a10e38ce 100644
--- a/fs/sysfs/group.c
+++ b/fs/sysfs/group.c
@@ -111,7 +111,7 @@ static int internal_create_group(struct kobject *kobj, int update,
 	error = create_files(sd, kobj, grp, update);
 	if (error) {
 		if (grp->name)
-			sysfs_remove_subdir(sd);
+			sysfs_remove(sd);
 	}
 	sysfs_put(sd);
 	return error;
@@ -219,7 +219,7 @@ void sysfs_remove_group(struct kobject *kobj,
 
 	remove_files(sd, kobj, grp);
 	if (grp->name)
-		sysfs_remove_subdir(sd);
+		sysfs_remove(sd);
 
 	sysfs_put(sd);
 }
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index 364c8873fbda..63f755ef71dd 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -330,7 +330,7 @@ int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const char *name,
 
 	sd = sysfs_find_dirent(dir_sd, name, ns);
 	if (sd)
-		sysfs_remove_one(&acxt, sd);
+		__sysfs_remove(&acxt, sd);
 
 	sysfs_addrm_finish(&acxt);
 
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index 4d1154411cdb..4b1d8258b071 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -158,7 +158,8 @@ int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd,
 		    struct sysfs_dirent *parent_sd);
 int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd,
 		  struct sysfs_dirent *parent_sd);
-void sysfs_remove_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd);
+void __sysfs_remove(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd);
+void sysfs_remove(struct sysfs_dirent *sd);
 void sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt);
 
 struct sysfs_dirent *sysfs_find_dirent(struct sysfs_dirent *parent_sd,
@@ -170,7 +171,6 @@ void release_sysfs_dirent(struct sysfs_dirent *sd);
 
 int sysfs_create_subdir(struct kobject *kobj, const char *name,
 			struct sysfs_dirent **p_sd);
-void sysfs_remove_subdir(struct sysfs_dirent *sd);
 
 int sysfs_rename(struct sysfs_dirent *sd, struct sysfs_dirent *new_parent_sd,
 		 const char *new_name, const void *new_ns);
-- 
cgit 


From e64457191a259537bbbfaebeba9a8043786af96f Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Thu, 3 Oct 2013 18:16:47 -0700
Subject: openvswitch: Restructure datapath.c and flow.c

Over the time datapath.c and flow.c has became pretty large files.
Following patch restructures functionality of component into three
different components:

flow.c: contains flow extract.
flow_netlink.c: netlink flow api.
flow_table.c: flow table api.

This patch restructures code without changing logic.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
---
 net/openvswitch/Makefile       |    2 +
 net/openvswitch/datapath.c     |  528 +------------
 net/openvswitch/datapath.h     |    1 +
 net/openvswitch/flow.c         | 1605 +---------------------------------------
 net/openvswitch/flow.h         |  128 +---
 net/openvswitch/flow_netlink.c | 1603 +++++++++++++++++++++++++++++++++++++++
 net/openvswitch/flow_netlink.h |   60 ++
 net/openvswitch/flow_table.c   |  517 +++++++++++++
 net/openvswitch/flow_table.h   |   91 +++
 9 files changed, 2354 insertions(+), 2181 deletions(-)
 create mode 100644 net/openvswitch/flow_netlink.c
 create mode 100644 net/openvswitch/flow_netlink.h
 create mode 100644 net/openvswitch/flow_table.c
 create mode 100644 net/openvswitch/flow_table.h

diff --git a/net/openvswitch/Makefile b/net/openvswitch/Makefile
index ea36e99089af..3591cb5dae91 100644
--- a/net/openvswitch/Makefile
+++ b/net/openvswitch/Makefile
@@ -9,6 +9,8 @@ openvswitch-y := \
 	datapath.o \
 	dp_notify.o \
 	flow.o \
+	flow_netlink.o \
+	flow_table.o \
 	vport.o \
 	vport-internal_dev.o \
 	vport-netdev.o
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 2e1a9c24e380..72e68743c643 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -55,10 +55,10 @@
 
 #include "datapath.h"
 #include "flow.h"
+#include "flow_netlink.h"
 #include "vport-internal_dev.h"
 #include "vport-netdev.h"
 
-
 #define REHASH_FLOW_INTERVAL (10 * 60 * HZ)
 
 int ovs_net_id __read_mostly;
@@ -235,7 +235,7 @@ void ovs_dp_process_received_packet(struct vport *p, struct sk_buff *skb)
 	}
 
 	/* Look up flow. */
-	flow = ovs_flow_lookup(rcu_dereference(dp->table), &key);
+	flow = ovs_flow_tbl_lookup(rcu_dereference(dp->table), &key);
 	if (unlikely(!flow)) {
 		struct dp_upcall_info upcall;
 
@@ -433,7 +433,7 @@ static int queue_userspace_packet(struct net *net, int dp_ifindex,
 	upcall->dp_ifindex = dp_ifindex;
 
 	nla = nla_nest_start(user_skb, OVS_PACKET_ATTR_KEY);
-	ovs_flow_to_nlattrs(upcall_info->key, upcall_info->key, user_skb);
+	ovs_nla_put_flow(upcall_info->key, upcall_info->key, user_skb);
 	nla_nest_end(user_skb, nla);
 
 	if (upcall_info->userdata)
@@ -470,381 +470,6 @@ static int flush_flows(struct datapath *dp)
 	return 0;
 }
 
-static struct nlattr *reserve_sfa_size(struct sw_flow_actions **sfa, int attr_len)
-{
-
-	struct sw_flow_actions *acts;
-	int new_acts_size;
-	int req_size = NLA_ALIGN(attr_len);
-	int next_offset = offsetof(struct sw_flow_actions, actions) +
-					(*sfa)->actions_len;
-
-	if (req_size <= (ksize(*sfa) - next_offset))
-		goto out;
-
-	new_acts_size = ksize(*sfa) * 2;
-
-	if (new_acts_size > MAX_ACTIONS_BUFSIZE) {
-		if ((MAX_ACTIONS_BUFSIZE - next_offset) < req_size)
-			return ERR_PTR(-EMSGSIZE);
-		new_acts_size = MAX_ACTIONS_BUFSIZE;
-	}
-
-	acts = ovs_flow_actions_alloc(new_acts_size);
-	if (IS_ERR(acts))
-		return (void *)acts;
-
-	memcpy(acts->actions, (*sfa)->actions, (*sfa)->actions_len);
-	acts->actions_len = (*sfa)->actions_len;
-	kfree(*sfa);
-	*sfa = acts;
-
-out:
-	(*sfa)->actions_len += req_size;
-	return  (struct nlattr *) ((unsigned char *)(*sfa) + next_offset);
-}
-
-static int add_action(struct sw_flow_actions **sfa, int attrtype, void *data, int len)
-{
-	struct nlattr *a;
-
-	a = reserve_sfa_size(sfa, nla_attr_size(len));
-	if (IS_ERR(a))
-		return PTR_ERR(a);
-
-	a->nla_type = attrtype;
-	a->nla_len = nla_attr_size(len);
-
-	if (data)
-		memcpy(nla_data(a), data, len);
-	memset((unsigned char *) a + a->nla_len, 0, nla_padlen(len));
-
-	return 0;
-}
-
-static inline int add_nested_action_start(struct sw_flow_actions **sfa, int attrtype)
-{
-	int used = (*sfa)->actions_len;
-	int err;
-
-	err = add_action(sfa, attrtype, NULL, 0);
-	if (err)
-		return err;
-
-	return used;
-}
-
-static inline void add_nested_action_end(struct sw_flow_actions *sfa, int st_offset)
-{
-	struct nlattr *a = (struct nlattr *) ((unsigned char *)sfa->actions + st_offset);
-
-	a->nla_len = sfa->actions_len - st_offset;
-}
-
-static int validate_and_copy_actions(const struct nlattr *attr,
-				     const struct sw_flow_key *key, int depth,
-				     struct sw_flow_actions **sfa);
-
-static int validate_and_copy_sample(const struct nlattr *attr,
-				    const struct sw_flow_key *key, int depth,
-				    struct sw_flow_actions **sfa)
-{
-	const struct nlattr *attrs[OVS_SAMPLE_ATTR_MAX + 1];
-	const struct nlattr *probability, *actions;
-	const struct nlattr *a;
-	int rem, start, err, st_acts;
-
-	memset(attrs, 0, sizeof(attrs));
-	nla_for_each_nested(a, attr, rem) {
-		int type = nla_type(a);
-		if (!type || type > OVS_SAMPLE_ATTR_MAX || attrs[type])
-			return -EINVAL;
-		attrs[type] = a;
-	}
-	if (rem)
-		return -EINVAL;
-
-	probability = attrs[OVS_SAMPLE_ATTR_PROBABILITY];
-	if (!probability || nla_len(probability) != sizeof(u32))
-		return -EINVAL;
-
-	actions = attrs[OVS_SAMPLE_ATTR_ACTIONS];
-	if (!actions || (nla_len(actions) && nla_len(actions) < NLA_HDRLEN))
-		return -EINVAL;
-
-	/* validation done, copy sample action. */
-	start = add_nested_action_start(sfa, OVS_ACTION_ATTR_SAMPLE);
-	if (start < 0)
-		return start;
-	err = add_action(sfa, OVS_SAMPLE_ATTR_PROBABILITY, nla_data(probability), sizeof(u32));
-	if (err)
-		return err;
-	st_acts = add_nested_action_start(sfa, OVS_SAMPLE_ATTR_ACTIONS);
-	if (st_acts < 0)
-		return st_acts;
-
-	err = validate_and_copy_actions(actions, key, depth + 1, sfa);
-	if (err)
-		return err;
-
-	add_nested_action_end(*sfa, st_acts);
-	add_nested_action_end(*sfa, start);
-
-	return 0;
-}
-
-static int validate_tp_port(const struct sw_flow_key *flow_key)
-{
-	if (flow_key->eth.type == htons(ETH_P_IP)) {
-		if (flow_key->ipv4.tp.src || flow_key->ipv4.tp.dst)
-			return 0;
-	} else if (flow_key->eth.type == htons(ETH_P_IPV6)) {
-		if (flow_key->ipv6.tp.src || flow_key->ipv6.tp.dst)
-			return 0;
-	}
-
-	return -EINVAL;
-}
-
-static int validate_and_copy_set_tun(const struct nlattr *attr,
-				     struct sw_flow_actions **sfa)
-{
-	struct sw_flow_match match;
-	struct sw_flow_key key;
-	int err, start;
-
-	ovs_match_init(&match, &key, NULL);
-	err = ovs_ipv4_tun_from_nlattr(nla_data(attr), &match, false);
-	if (err)
-		return err;
-
-	start = add_nested_action_start(sfa, OVS_ACTION_ATTR_SET);
-	if (start < 0)
-		return start;
-
-	err = add_action(sfa, OVS_KEY_ATTR_IPV4_TUNNEL, &match.key->tun_key,
-			sizeof(match.key->tun_key));
-	add_nested_action_end(*sfa, start);
-
-	return err;
-}
-
-static int validate_set(const struct nlattr *a,
-			const struct sw_flow_key *flow_key,
-			struct sw_flow_actions **sfa,
-			bool *set_tun)
-{
-	const struct nlattr *ovs_key = nla_data(a);
-	int key_type = nla_type(ovs_key);
-
-	/* There can be only one key in a action */
-	if (nla_total_size(nla_len(ovs_key)) != nla_len(a))
-		return -EINVAL;
-
-	if (key_type > OVS_KEY_ATTR_MAX ||
-	   (ovs_key_lens[key_type] != nla_len(ovs_key) &&
-	    ovs_key_lens[key_type] != -1))
-		return -EINVAL;
-
-	switch (key_type) {
-	const struct ovs_key_ipv4 *ipv4_key;
-	const struct ovs_key_ipv6 *ipv6_key;
-	int err;
-
-	case OVS_KEY_ATTR_PRIORITY:
-	case OVS_KEY_ATTR_SKB_MARK:
-	case OVS_KEY_ATTR_ETHERNET:
-		break;
-
-	case OVS_KEY_ATTR_TUNNEL:
-		*set_tun = true;
-		err = validate_and_copy_set_tun(a, sfa);
-		if (err)
-			return err;
-		break;
-
-	case OVS_KEY_ATTR_IPV4:
-		if (flow_key->eth.type != htons(ETH_P_IP))
-			return -EINVAL;
-
-		if (!flow_key->ip.proto)
-			return -EINVAL;
-
-		ipv4_key = nla_data(ovs_key);
-		if (ipv4_key->ipv4_proto != flow_key->ip.proto)
-			return -EINVAL;
-
-		if (ipv4_key->ipv4_frag != flow_key->ip.frag)
-			return -EINVAL;
-
-		break;
-
-	case OVS_KEY_ATTR_IPV6:
-		if (flow_key->eth.type != htons(ETH_P_IPV6))
-			return -EINVAL;
-
-		if (!flow_key->ip.proto)
-			return -EINVAL;
-
-		ipv6_key = nla_data(ovs_key);
-		if (ipv6_key->ipv6_proto != flow_key->ip.proto)
-			return -EINVAL;
-
-		if (ipv6_key->ipv6_frag != flow_key->ip.frag)
-			return -EINVAL;
-
-		if (ntohl(ipv6_key->ipv6_label) & 0xFFF00000)
-			return -EINVAL;
-
-		break;
-
-	case OVS_KEY_ATTR_TCP:
-		if (flow_key->ip.proto != IPPROTO_TCP)
-			return -EINVAL;
-
-		return validate_tp_port(flow_key);
-
-	case OVS_KEY_ATTR_UDP:
-		if (flow_key->ip.proto != IPPROTO_UDP)
-			return -EINVAL;
-
-		return validate_tp_port(flow_key);
-
-	case OVS_KEY_ATTR_SCTP:
-		if (flow_key->ip.proto != IPPROTO_SCTP)
-			return -EINVAL;
-
-		return validate_tp_port(flow_key);
-
-	default:
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static int validate_userspace(const struct nlattr *attr)
-{
-	static const struct nla_policy userspace_policy[OVS_USERSPACE_ATTR_MAX + 1] =	{
-		[OVS_USERSPACE_ATTR_PID] = {.type = NLA_U32 },
-		[OVS_USERSPACE_ATTR_USERDATA] = {.type = NLA_UNSPEC },
-	};
-	struct nlattr *a[OVS_USERSPACE_ATTR_MAX + 1];
-	int error;
-
-	error = nla_parse_nested(a, OVS_USERSPACE_ATTR_MAX,
-				 attr, userspace_policy);
-	if (error)
-		return error;
-
-	if (!a[OVS_USERSPACE_ATTR_PID] ||
-	    !nla_get_u32(a[OVS_USERSPACE_ATTR_PID]))
-		return -EINVAL;
-
-	return 0;
-}
-
-static int copy_action(const struct nlattr *from,
-		       struct sw_flow_actions **sfa)
-{
-	int totlen = NLA_ALIGN(from->nla_len);
-	struct nlattr *to;
-
-	to = reserve_sfa_size(sfa, from->nla_len);
-	if (IS_ERR(to))
-		return PTR_ERR(to);
-
-	memcpy(to, from, totlen);
-	return 0;
-}
-
-static int validate_and_copy_actions(const struct nlattr *attr,
-				     const struct sw_flow_key *key,
-				     int depth,
-				     struct sw_flow_actions **sfa)
-{
-	const struct nlattr *a;
-	int rem, err;
-
-	if (depth >= SAMPLE_ACTION_DEPTH)
-		return -EOVERFLOW;
-
-	nla_for_each_nested(a, attr, rem) {
-		/* Expected argument lengths, (u32)-1 for variable length. */
-		static const u32 action_lens[OVS_ACTION_ATTR_MAX + 1] = {
-			[OVS_ACTION_ATTR_OUTPUT] = sizeof(u32),
-			[OVS_ACTION_ATTR_USERSPACE] = (u32)-1,
-			[OVS_ACTION_ATTR_PUSH_VLAN] = sizeof(struct ovs_action_push_vlan),
-			[OVS_ACTION_ATTR_POP_VLAN] = 0,
-			[OVS_ACTION_ATTR_SET] = (u32)-1,
-			[OVS_ACTION_ATTR_SAMPLE] = (u32)-1
-		};
-		const struct ovs_action_push_vlan *vlan;
-		int type = nla_type(a);
-		bool skip_copy;
-
-		if (type > OVS_ACTION_ATTR_MAX ||
-		    (action_lens[type] != nla_len(a) &&
-		     action_lens[type] != (u32)-1))
-			return -EINVAL;
-
-		skip_copy = false;
-		switch (type) {
-		case OVS_ACTION_ATTR_UNSPEC:
-			return -EINVAL;
-
-		case OVS_ACTION_ATTR_USERSPACE:
-			err = validate_userspace(a);
-			if (err)
-				return err;
-			break;
-
-		case OVS_ACTION_ATTR_OUTPUT:
-			if (nla_get_u32(a) >= DP_MAX_PORTS)
-				return -EINVAL;
-			break;
-
-
-		case OVS_ACTION_ATTR_POP_VLAN:
-			break;
-
-		case OVS_ACTION_ATTR_PUSH_VLAN:
-			vlan = nla_data(a);
-			if (vlan->vlan_tpid != htons(ETH_P_8021Q))
-				return -EINVAL;
-			if (!(vlan->vlan_tci & htons(VLAN_TAG_PRESENT)))
-				return -EINVAL;
-			break;
-
-		case OVS_ACTION_ATTR_SET:
-			err = validate_set(a, key, sfa, &skip_copy);
-			if (err)
-				return err;
-			break;
-
-		case OVS_ACTION_ATTR_SAMPLE:
-			err = validate_and_copy_sample(a, key, depth, sfa);
-			if (err)
-				return err;
-			skip_copy = true;
-			break;
-
-		default:
-			return -EINVAL;
-		}
-		if (!skip_copy) {
-			err = copy_action(a, sfa);
-			if (err)
-				return err;
-		}
-	}
-
-	if (rem > 0)
-		return -EINVAL;
-
-	return 0;
-}
-
 static void clear_stats(struct sw_flow *flow)
 {
 	flow->used = 0;
@@ -900,15 +525,16 @@ static int ovs_packet_cmd_execute(struct sk_buff *skb, struct genl_info *info)
 	if (err)
 		goto err_flow_free;
 
-	err = ovs_flow_metadata_from_nlattrs(flow, a[OVS_PACKET_ATTR_KEY]);
+	err = ovs_nla_get_flow_metadata(flow, a[OVS_PACKET_ATTR_KEY]);
 	if (err)
 		goto err_flow_free;
-	acts = ovs_flow_actions_alloc(nla_len(a[OVS_PACKET_ATTR_ACTIONS]));
+	acts = ovs_nla_alloc_flow_actions(nla_len(a[OVS_PACKET_ATTR_ACTIONS]));
 	err = PTR_ERR(acts);
 	if (IS_ERR(acts))
 		goto err_flow_free;
 
-	err = validate_and_copy_actions(a[OVS_PACKET_ATTR_ACTIONS], &flow->key, 0, &acts);
+	err = ovs_nla_copy_actions(a[OVS_PACKET_ATTR_ACTIONS],
+				   &flow->key, 0, &acts);
 	rcu_assign_pointer(flow->sf_acts, acts);
 	if (err)
 		goto err_flow_free;
@@ -1003,100 +629,6 @@ static struct genl_multicast_group ovs_dp_flow_multicast_group = {
 	.name = OVS_FLOW_MCGROUP
 };
 
-static int actions_to_attr(const struct nlattr *attr, int len, struct sk_buff *skb);
-static int sample_action_to_attr(const struct nlattr *attr, struct sk_buff *skb)
-{
-	const struct nlattr *a;
-	struct nlattr *start;
-	int err = 0, rem;
-
-	start = nla_nest_start(skb, OVS_ACTION_ATTR_SAMPLE);
-	if (!start)
-		return -EMSGSIZE;
-
-	nla_for_each_nested(a, attr, rem) {
-		int type = nla_type(a);
-		struct nlattr *st_sample;
-
-		switch (type) {
-		case OVS_SAMPLE_ATTR_PROBABILITY:
-			if (nla_put(skb, OVS_SAMPLE_ATTR_PROBABILITY, sizeof(u32), nla_data(a)))
-				return -EMSGSIZE;
-			break;
-		case OVS_SAMPLE_ATTR_ACTIONS:
-			st_sample = nla_nest_start(skb, OVS_SAMPLE_ATTR_ACTIONS);
-			if (!st_sample)
-				return -EMSGSIZE;
-			err = actions_to_attr(nla_data(a), nla_len(a), skb);
-			if (err)
-				return err;
-			nla_nest_end(skb, st_sample);
-			break;
-		}
-	}
-
-	nla_nest_end(skb, start);
-	return err;
-}
-
-static int set_action_to_attr(const struct nlattr *a, struct sk_buff *skb)
-{
-	const struct nlattr *ovs_key = nla_data(a);
-	int key_type = nla_type(ovs_key);
-	struct nlattr *start;
-	int err;
-
-	switch (key_type) {
-	case OVS_KEY_ATTR_IPV4_TUNNEL:
-		start = nla_nest_start(skb, OVS_ACTION_ATTR_SET);
-		if (!start)
-			return -EMSGSIZE;
-
-		err = ovs_ipv4_tun_to_nlattr(skb, nla_data(ovs_key),
-					     nla_data(ovs_key));
-		if (err)
-			return err;
-		nla_nest_end(skb, start);
-		break;
-	default:
-		if (nla_put(skb, OVS_ACTION_ATTR_SET, nla_len(a), ovs_key))
-			return -EMSGSIZE;
-		break;
-	}
-
-	return 0;
-}
-
-static int actions_to_attr(const struct nlattr *attr, int len, struct sk_buff *skb)
-{
-	const struct nlattr *a;
-	int rem, err;
-
-	nla_for_each_attr(a, attr, len, rem) {
-		int type = nla_type(a);
-
-		switch (type) {
-		case OVS_ACTION_ATTR_SET:
-			err = set_action_to_attr(a, skb);
-			if (err)
-				return err;
-			break;
-
-		case OVS_ACTION_ATTR_SAMPLE:
-			err = sample_action_to_attr(a, skb);
-			if (err)
-				return err;
-			break;
-		default:
-			if (nla_put(skb, type, nla_len(a), nla_data(a)))
-				return -EMSGSIZE;
-			break;
-		}
-	}
-
-	return 0;
-}
-
 static size_t ovs_flow_cmd_msg_size(const struct sw_flow_actions *acts)
 {
 	return NLMSG_ALIGN(sizeof(struct ovs_header))
@@ -1133,8 +665,7 @@ static int ovs_flow_cmd_fill_info(struct sw_flow *flow, struct datapath *dp,
 	if (!nla)
 		goto nla_put_failure;
 
-	err = ovs_flow_to_nlattrs(&flow->unmasked_key,
-			&flow->unmasked_key, skb);
+	err = ovs_nla_put_flow(&flow->unmasked_key, &flow->unmasked_key, skb);
 	if (err)
 		goto error;
 	nla_nest_end(skb, nla);
@@ -1143,7 +674,7 @@ static int ovs_flow_cmd_fill_info(struct sw_flow *flow, struct datapath *dp,
 	if (!nla)
 		goto nla_put_failure;
 
-	err = ovs_flow_to_nlattrs(&flow->key, &flow->mask->key, skb);
+	err = ovs_nla_put_flow(&flow->key, &flow->mask->key, skb);
 	if (err)
 		goto error;
 
@@ -1186,7 +717,8 @@ static int ovs_flow_cmd_fill_info(struct sw_flow *flow, struct datapath *dp,
 		sf_acts = rcu_dereference_check(flow->sf_acts,
 						lockdep_ovsl_is_held());
 
-		err = actions_to_attr(sf_acts->actions, sf_acts->actions_len, skb);
+		err = ovs_nla_put_actions(sf_acts->actions,
+					  sf_acts->actions_len, skb);
 		if (!err)
 			nla_nest_end(skb, start);
 		else {
@@ -1252,21 +784,21 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 		goto error;
 
 	ovs_match_init(&match, &key, &mask);
-	error = ovs_match_from_nlattrs(&match,
-			a[OVS_FLOW_ATTR_KEY], a[OVS_FLOW_ATTR_MASK]);
+	error = ovs_nla_get_match(&match,
+				  a[OVS_FLOW_ATTR_KEY], a[OVS_FLOW_ATTR_MASK]);
 	if (error)
 		goto error;
 
 	/* Validate actions. */
 	if (a[OVS_FLOW_ATTR_ACTIONS]) {
-		acts = ovs_flow_actions_alloc(nla_len(a[OVS_FLOW_ATTR_ACTIONS]));
+		acts = ovs_nla_alloc_flow_actions(nla_len(a[OVS_FLOW_ATTR_ACTIONS]));
 		error = PTR_ERR(acts);
 		if (IS_ERR(acts))
 			goto error;
 
-		ovs_flow_key_mask(&masked_key, &key, &mask);
-		error = validate_and_copy_actions(a[OVS_FLOW_ATTR_ACTIONS],
-						  &masked_key, 0, &acts);
+		ovs_flow_mask_key(&masked_key, &key, &mask);
+		error = ovs_nla_copy_actions(a[OVS_FLOW_ATTR_ACTIONS],
+					     &masked_key, 0, &acts);
 		if (error) {
 			OVS_NLERR("Flow actions may not be safe on all matching packets.\n");
 			goto err_kfree;
@@ -1285,7 +817,7 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 	table = ovsl_dereference(dp->table);
 
 	/* Check if this is a duplicate flow */
-	flow = ovs_flow_lookup(table, &key);
+	flow = ovs_flow_tbl_lookup(table, &key);
 	if (!flow) {
 		struct flow_table *new_table = NULL;
 		struct sw_flow_mask *mask_p;
@@ -1336,7 +868,7 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 		rcu_assign_pointer(flow->sf_acts, acts);
 
 		/* Put flow in bucket. */
-		ovs_flow_insert(table, flow);
+		ovs_flow_tbl_insert(table, flow);
 
 		reply = ovs_flow_cmd_build_info(flow, dp, info->snd_portid,
 						info->snd_seq, OVS_FLOW_CMD_NEW);
@@ -1357,7 +889,7 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 
 		/* The unmasked key has to be the same for flow updates. */
 		error = -EINVAL;
-		if (!ovs_flow_cmp_unmasked_key(flow, &key, match.range.end)) {
+		if (!ovs_flow_cmp_unmasked_key(flow, &match)) {
 			OVS_NLERR("Flow modification message rejected, unmasked key does not match.\n");
 			goto err_unlock_ovs;
 		}
@@ -1365,7 +897,7 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 		/* Update actions. */
 		old_acts = ovsl_dereference(flow->sf_acts);
 		rcu_assign_pointer(flow->sf_acts, acts);
-		ovs_flow_deferred_free_acts(old_acts);
+		ovs_nla_free_flow_actions(old_acts);
 
 		reply = ovs_flow_cmd_build_info(flow, dp, info->snd_portid,
 					       info->snd_seq, OVS_FLOW_CMD_NEW);
@@ -1414,7 +946,7 @@ static int ovs_flow_cmd_get(struct sk_buff *skb, struct genl_info *info)
 	}
 
 	ovs_match_init(&match, &key, NULL);
-	err = ovs_match_from_nlattrs(&match, a[OVS_FLOW_ATTR_KEY], NULL);
+	err = ovs_nla_get_match(&match, a[OVS_FLOW_ATTR_KEY], NULL);
 	if (err)
 		return err;
 
@@ -1426,8 +958,8 @@ static int ovs_flow_cmd_get(struct sk_buff *skb, struct genl_info *info)
 	}
 
 	table = ovsl_dereference(dp->table);
-	flow = ovs_flow_lookup_unmasked_key(table, &match);
-	if (!flow) {
+	flow = ovs_flow_tbl_lookup(table, &key);
+	if (!flow || !ovs_flow_cmp_unmasked_key(flow, &match)) {
 		err = -ENOENT;
 		goto unlock;
 	}
@@ -1471,13 +1003,13 @@ static int ovs_flow_cmd_del(struct sk_buff *skb, struct genl_info *info)
 	}
 
 	ovs_match_init(&match, &key, NULL);
-	err = ovs_match_from_nlattrs(&match, a[OVS_FLOW_ATTR_KEY], NULL);
+	err = ovs_nla_get_match(&match, a[OVS_FLOW_ATTR_KEY], NULL);
 	if (err)
 		goto unlock;
 
 	table = ovsl_dereference(dp->table);
-	flow = ovs_flow_lookup_unmasked_key(table, &match);
-	if (!flow) {
+	flow = ovs_flow_tbl_lookup(table, &key);
+	if (!flow || !ovs_flow_cmp_unmasked_key(flow, &match)) {
 		err = -ENOENT;
 		goto unlock;
 	}
@@ -1488,7 +1020,7 @@ static int ovs_flow_cmd_del(struct sk_buff *skb, struct genl_info *info)
 		goto unlock;
 	}
 
-	ovs_flow_remove(table, flow);
+	ovs_flow_tbl_remove(table, flow);
 
 	err = ovs_flow_cmd_fill_info(flow, dp, reply, info->snd_portid,
 				     info->snd_seq, 0, OVS_FLOW_CMD_DEL);
@@ -1524,7 +1056,7 @@ static int ovs_flow_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb)
 
 		bucket = cb->args[0];
 		obj = cb->args[1];
-		flow = ovs_flow_dump_next(table, &bucket, &obj);
+		flow = ovs_flow_tbl_dump_next(table, &bucket, &obj);
 		if (!flow)
 			break;
 
@@ -1700,7 +1232,7 @@ static int ovs_dp_cmd_new(struct sk_buff *skb, struct genl_info *info)
 	}
 
 	dp->ports = kmalloc(DP_VPORT_HASH_BUCKETS * sizeof(struct hlist_head),
-			GFP_KERNEL);
+			    GFP_KERNEL);
 	if (!dp->ports) {
 		err = -ENOMEM;
 		goto err_destroy_percpu;
diff --git a/net/openvswitch/datapath.h b/net/openvswitch/datapath.h
index 2c15541f3b46..a6982ef84f20 100644
--- a/net/openvswitch/datapath.h
+++ b/net/openvswitch/datapath.h
@@ -27,6 +27,7 @@
 #include <linux/u64_stats_sync.h>
 
 #include "flow.h"
+#include "flow_table.h"
 #include "vport.h"
 
 #define DP_MAX_PORTS           USHRT_MAX
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index 410db90db73d..617810f1a21e 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -45,202 +45,40 @@
 #include <net/ipv6.h>
 #include <net/ndisc.h>
 
-static struct kmem_cache *flow_cache;
-
-static void ovs_sw_flow_mask_set(struct sw_flow_mask *mask,
-		struct sw_flow_key_range *range, u8 val);
-
-static void update_range__(struct sw_flow_match *match,
-			  size_t offset, size_t size, bool is_mask)
+u64 ovs_flow_used_time(unsigned long flow_jiffies)
 {
-	struct sw_flow_key_range *range = NULL;
-	size_t start = rounddown(offset, sizeof(long));
-	size_t end = roundup(offset + size, sizeof(long));
-
-	if (!is_mask)
-		range = &match->range;
-	else if (match->mask)
-		range = &match->mask->range;
-
-	if (!range)
-		return;
-
-	if (range->start == range->end) {
-		range->start = start;
-		range->end = end;
-		return;
-	}
-
-	if (range->start > start)
-		range->start = start;
+	struct timespec cur_ts;
+	u64 cur_ms, idle_ms;
 
-	if (range->end < end)
-		range->end = end;
-}
+	ktime_get_ts(&cur_ts);
+	idle_ms = jiffies_to_msecs(jiffies - flow_jiffies);
+	cur_ms = (u64)cur_ts.tv_sec * MSEC_PER_SEC +
+		 cur_ts.tv_nsec / NSEC_PER_MSEC;
 
-#define SW_FLOW_KEY_PUT(match, field, value, is_mask) \
-	do { \
-		update_range__(match, offsetof(struct sw_flow_key, field),  \
-				     sizeof((match)->key->field), is_mask); \
-		if (is_mask) {						    \
-			if ((match)->mask)				    \
-				(match)->mask->key.field = value;	    \
-		} else {                                                    \
-			(match)->key->field = value;		            \
-		}                                                           \
-	} while (0)
-
-#define SW_FLOW_KEY_MEMCPY(match, field, value_p, len, is_mask) \
-	do { \
-		update_range__(match, offsetof(struct sw_flow_key, field),  \
-				len, is_mask);                              \
-		if (is_mask) {						    \
-			if ((match)->mask)				    \
-				memcpy(&(match)->mask->key.field, value_p, len);\
-		} else {                                                    \
-			memcpy(&(match)->key->field, value_p, len);         \
-		}                                                           \
-	} while (0)
-
-static u16 range_n_bytes(const struct sw_flow_key_range *range)
-{
-	return range->end - range->start;
+	return cur_ms - idle_ms;
 }
 
-void ovs_match_init(struct sw_flow_match *match,
-		    struct sw_flow_key *key,
-		    struct sw_flow_mask *mask)
-{
-	memset(match, 0, sizeof(*match));
-	match->key = key;
-	match->mask = mask;
-
-	memset(key, 0, sizeof(*key));
-
-	if (mask) {
-		memset(&mask->key, 0, sizeof(mask->key));
-		mask->range.start = mask->range.end = 0;
-	}
-}
+#define TCP_FLAGS_OFFSET 13
+#define TCP_FLAG_MASK 0x3f
 
-static bool ovs_match_validate(const struct sw_flow_match *match,
-		u64 key_attrs, u64 mask_attrs)
+void ovs_flow_used(struct sw_flow *flow, struct sk_buff *skb)
 {
-	u64 key_expected = 1 << OVS_KEY_ATTR_ETHERNET;
-	u64 mask_allowed = key_attrs;  /* At most allow all key attributes */
-
-	/* The following mask attributes allowed only if they
-	 * pass the validation tests. */
-	mask_allowed &= ~((1 << OVS_KEY_ATTR_IPV4)
-			| (1 << OVS_KEY_ATTR_IPV6)
-			| (1 << OVS_KEY_ATTR_TCP)
-			| (1 << OVS_KEY_ATTR_UDP)
-			| (1 << OVS_KEY_ATTR_SCTP)
-			| (1 << OVS_KEY_ATTR_ICMP)
-			| (1 << OVS_KEY_ATTR_ICMPV6)
-			| (1 << OVS_KEY_ATTR_ARP)
-			| (1 << OVS_KEY_ATTR_ND));
-
-	/* Always allowed mask fields. */
-	mask_allowed |= ((1 << OVS_KEY_ATTR_TUNNEL)
-		       | (1 << OVS_KEY_ATTR_IN_PORT)
-		       | (1 << OVS_KEY_ATTR_ETHERTYPE));
-
-	/* Check key attributes. */
-	if (match->key->eth.type == htons(ETH_P_ARP)
-			|| match->key->eth.type == htons(ETH_P_RARP)) {
-		key_expected |= 1 << OVS_KEY_ATTR_ARP;
-		if (match->mask && (match->mask->key.eth.type == htons(0xffff)))
-			mask_allowed |= 1 << OVS_KEY_ATTR_ARP;
-	}
-
-	if (match->key->eth.type == htons(ETH_P_IP)) {
-		key_expected |= 1 << OVS_KEY_ATTR_IPV4;
-		if (match->mask && (match->mask->key.eth.type == htons(0xffff)))
-			mask_allowed |= 1 << OVS_KEY_ATTR_IPV4;
-
-		if (match->key->ip.frag != OVS_FRAG_TYPE_LATER) {
-			if (match->key->ip.proto == IPPROTO_UDP) {
-				key_expected |= 1 << OVS_KEY_ATTR_UDP;
-				if (match->mask && (match->mask->key.ip.proto == 0xff))
-					mask_allowed |= 1 << OVS_KEY_ATTR_UDP;
-			}
-
-			if (match->key->ip.proto == IPPROTO_SCTP) {
-				key_expected |= 1 << OVS_KEY_ATTR_SCTP;
-				if (match->mask && (match->mask->key.ip.proto == 0xff))
-					mask_allowed |= 1 << OVS_KEY_ATTR_SCTP;
-			}
-
-			if (match->key->ip.proto == IPPROTO_TCP) {
-				key_expected |= 1 << OVS_KEY_ATTR_TCP;
-				if (match->mask && (match->mask->key.ip.proto == 0xff))
-					mask_allowed |= 1 << OVS_KEY_ATTR_TCP;
-			}
-
-			if (match->key->ip.proto == IPPROTO_ICMP) {
-				key_expected |= 1 << OVS_KEY_ATTR_ICMP;
-				if (match->mask && (match->mask->key.ip.proto == 0xff))
-					mask_allowed |= 1 << OVS_KEY_ATTR_ICMP;
-			}
-		}
-	}
-
-	if (match->key->eth.type == htons(ETH_P_IPV6)) {
-		key_expected |= 1 << OVS_KEY_ATTR_IPV6;
-		if (match->mask && (match->mask->key.eth.type == htons(0xffff)))
-			mask_allowed |= 1 << OVS_KEY_ATTR_IPV6;
-
-		if (match->key->ip.frag != OVS_FRAG_TYPE_LATER) {
-			if (match->key->ip.proto == IPPROTO_UDP) {
-				key_expected |= 1 << OVS_KEY_ATTR_UDP;
-				if (match->mask && (match->mask->key.ip.proto == 0xff))
-					mask_allowed |= 1 << OVS_KEY_ATTR_UDP;
-			}
-
-			if (match->key->ip.proto == IPPROTO_SCTP) {
-				key_expected |= 1 << OVS_KEY_ATTR_SCTP;
-				if (match->mask && (match->mask->key.ip.proto == 0xff))
-					mask_allowed |= 1 << OVS_KEY_ATTR_SCTP;
-			}
-
-			if (match->key->ip.proto == IPPROTO_TCP) {
-				key_expected |= 1 << OVS_KEY_ATTR_TCP;
-				if (match->mask && (match->mask->key.ip.proto == 0xff))
-					mask_allowed |= 1 << OVS_KEY_ATTR_TCP;
-			}
-
-			if (match->key->ip.proto == IPPROTO_ICMPV6) {
-				key_expected |= 1 << OVS_KEY_ATTR_ICMPV6;
-				if (match->mask && (match->mask->key.ip.proto == 0xff))
-					mask_allowed |= 1 << OVS_KEY_ATTR_ICMPV6;
-
-				if (match->key->ipv6.tp.src ==
-						htons(NDISC_NEIGHBOUR_SOLICITATION) ||
-				    match->key->ipv6.tp.src == htons(NDISC_NEIGHBOUR_ADVERTISEMENT)) {
-					key_expected |= 1 << OVS_KEY_ATTR_ND;
-					if (match->mask && (match->mask->key.ipv6.tp.src == htons(0xffff)))
-						mask_allowed |= 1 << OVS_KEY_ATTR_ND;
-				}
-			}
-		}
-	}
-
-	if ((key_attrs & key_expected) != key_expected) {
-		/* Key attributes check failed. */
-		OVS_NLERR("Missing expected key attributes (key_attrs=%llx, expected=%llx).\n",
-				key_attrs, key_expected);
-		return false;
-	}
+	u8 tcp_flags = 0;
 
-	if ((mask_attrs & mask_allowed) != mask_attrs) {
-		/* Mask attributes check failed. */
-		OVS_NLERR("Contain more than allowed mask fields (mask_attrs=%llx, mask_allowed=%llx).\n",
-				mask_attrs, mask_allowed);
-		return false;
+	if ((flow->key.eth.type == htons(ETH_P_IP) ||
+	     flow->key.eth.type == htons(ETH_P_IPV6)) &&
+	    flow->key.ip.proto == IPPROTO_TCP &&
+	    likely(skb->len >= skb_transport_offset(skb) + sizeof(struct tcphdr))) {
+		u8 *tcp = (u8 *)tcp_hdr(skb);
+		tcp_flags = *(tcp + TCP_FLAGS_OFFSET) & TCP_FLAG_MASK;
 	}
 
-	return true;
+	spin_lock(&flow->lock);
+	flow->used = jiffies;
+	flow->packet_count++;
+	flow->byte_count += skb->len;
+	flow->tcp_flags |= tcp_flags;
+	spin_unlock(&flow->lock);
 }
 
 static int check_header(struct sk_buff *skb, int len)
@@ -311,19 +149,6 @@ static bool icmphdr_ok(struct sk_buff *skb)
 				  sizeof(struct icmphdr));
 }
 
-u64 ovs_flow_used_time(unsigned long flow_jiffies)
-{
-	struct timespec cur_ts;
-	u64 cur_ms, idle_ms;
-
-	ktime_get_ts(&cur_ts);
-	idle_ms = jiffies_to_msecs(jiffies - flow_jiffies);
-	cur_ms = (u64)cur_ts.tv_sec * MSEC_PER_SEC +
-		 cur_ts.tv_nsec / NSEC_PER_MSEC;
-
-	return cur_ms - idle_ms;
-}
-
 static int parse_ipv6hdr(struct sk_buff *skb, struct sw_flow_key *key)
 {
 	unsigned int nh_ofs = skb_network_offset(skb);
@@ -372,311 +197,6 @@ static bool icmp6hdr_ok(struct sk_buff *skb)
 				  sizeof(struct icmp6hdr));
 }
 
-void ovs_flow_key_mask(struct sw_flow_key *dst, const struct sw_flow_key *src,
-		       const struct sw_flow_mask *mask)
-{
-	const long *m = (long *)((u8 *)&mask->key + mask->range.start);
-	const long *s = (long *)((u8 *)src + mask->range.start);
-	long *d = (long *)((u8 *)dst + mask->range.start);
-	int i;
-
-	/* The memory outside of the 'mask->range' are not set since
-	 * further operations on 'dst' only uses contents within
-	 * 'mask->range'.
-	 */
-	for (i = 0; i < range_n_bytes(&mask->range); i += sizeof(long))
-		*d++ = *s++ & *m++;
-}
-
-#define TCP_FLAGS_OFFSET 13
-#define TCP_FLAG_MASK 0x3f
-
-void ovs_flow_used(struct sw_flow *flow, struct sk_buff *skb)
-{
-	u8 tcp_flags = 0;
-
-	if ((flow->key.eth.type == htons(ETH_P_IP) ||
-	     flow->key.eth.type == htons(ETH_P_IPV6)) &&
-	    flow->key.ip.proto == IPPROTO_TCP &&
-	    likely(skb->len >= skb_transport_offset(skb) + sizeof(struct tcphdr))) {
-		u8 *tcp = (u8 *)tcp_hdr(skb);
-		tcp_flags = *(tcp + TCP_FLAGS_OFFSET) & TCP_FLAG_MASK;
-	}
-
-	spin_lock(&flow->lock);
-	flow->used = jiffies;
-	flow->packet_count++;
-	flow->byte_count += skb->len;
-	flow->tcp_flags |= tcp_flags;
-	spin_unlock(&flow->lock);
-}
-
-struct sw_flow_actions *ovs_flow_actions_alloc(int size)
-{
-	struct sw_flow_actions *sfa;
-
-	if (size > MAX_ACTIONS_BUFSIZE)
-		return ERR_PTR(-EINVAL);
-
-	sfa = kmalloc(sizeof(*sfa) + size, GFP_KERNEL);
-	if (!sfa)
-		return ERR_PTR(-ENOMEM);
-
-	sfa->actions_len = 0;
-	return sfa;
-}
-
-struct sw_flow *ovs_flow_alloc(void)
-{
-	struct sw_flow *flow;
-
-	flow = kmem_cache_alloc(flow_cache, GFP_KERNEL);
-	if (!flow)
-		return ERR_PTR(-ENOMEM);
-
-	spin_lock_init(&flow->lock);
-	flow->sf_acts = NULL;
-	flow->mask = NULL;
-
-	return flow;
-}
-
-static struct hlist_head *find_bucket(struct flow_table *table, u32 hash)
-{
-	hash = jhash_1word(hash, table->hash_seed);
-	return flex_array_get(table->buckets,
-				(hash & (table->n_buckets - 1)));
-}
-
-static struct flex_array *alloc_buckets(unsigned int n_buckets)
-{
-	struct flex_array *buckets;
-	int i, err;
-
-	buckets = flex_array_alloc(sizeof(struct hlist_head),
-				   n_buckets, GFP_KERNEL);
-	if (!buckets)
-		return NULL;
-
-	err = flex_array_prealloc(buckets, 0, n_buckets, GFP_KERNEL);
-	if (err) {
-		flex_array_free(buckets);
-		return NULL;
-	}
-
-	for (i = 0; i < n_buckets; i++)
-		INIT_HLIST_HEAD((struct hlist_head *)
-					flex_array_get(buckets, i));
-
-	return buckets;
-}
-
-static void free_buckets(struct flex_array *buckets)
-{
-	flex_array_free(buckets);
-}
-
-static struct flow_table *__flow_tbl_alloc(int new_size)
-{
-	struct flow_table *table = kmalloc(sizeof(*table), GFP_KERNEL);
-
-	if (!table)
-		return NULL;
-
-	table->buckets = alloc_buckets(new_size);
-
-	if (!table->buckets) {
-		kfree(table);
-		return NULL;
-	}
-	table->n_buckets = new_size;
-	table->count = 0;
-	table->node_ver = 0;
-	table->keep_flows = false;
-	get_random_bytes(&table->hash_seed, sizeof(u32));
-	table->mask_list = NULL;
-
-	return table;
-}
-
-static void __flow_tbl_destroy(struct flow_table *table)
-{
-	int i;
-
-	if (table->keep_flows)
-		goto skip_flows;
-
-	for (i = 0; i < table->n_buckets; i++) {
-		struct sw_flow *flow;
-		struct hlist_head *head = flex_array_get(table->buckets, i);
-		struct hlist_node *n;
-		int ver = table->node_ver;
-
-		hlist_for_each_entry_safe(flow, n, head, hash_node[ver]) {
-			hlist_del(&flow->hash_node[ver]);
-			ovs_flow_free(flow, false);
-		}
-	}
-
-	BUG_ON(!list_empty(table->mask_list));
-	kfree(table->mask_list);
-
-skip_flows:
-	free_buckets(table->buckets);
-	kfree(table);
-}
-
-struct flow_table *ovs_flow_tbl_alloc(int new_size)
-{
-	struct flow_table *table = __flow_tbl_alloc(new_size);
-
-	if (!table)
-		return NULL;
-
-	table->mask_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
-	if (!table->mask_list) {
-		table->keep_flows = true;
-		__flow_tbl_destroy(table);
-		return NULL;
-	}
-	INIT_LIST_HEAD(table->mask_list);
-
-	return table;
-}
-
-static void flow_tbl_destroy_rcu_cb(struct rcu_head *rcu)
-{
-	struct flow_table *table = container_of(rcu, struct flow_table, rcu);
-
-	__flow_tbl_destroy(table);
-}
-
-void ovs_flow_tbl_destroy(struct flow_table *table, bool deferred)
-{
-	if (!table)
-		return;
-
-	if (deferred)
-		call_rcu(&table->rcu, flow_tbl_destroy_rcu_cb);
-	else
-		__flow_tbl_destroy(table);
-}
-
-struct sw_flow *ovs_flow_dump_next(struct flow_table *table, u32 *bucket, u32 *last)
-{
-	struct sw_flow *flow;
-	struct hlist_head *head;
-	int ver;
-	int i;
-
-	ver = table->node_ver;
-	while (*bucket < table->n_buckets) {
-		i = 0;
-		head = flex_array_get(table->buckets, *bucket);
-		hlist_for_each_entry_rcu(flow, head, hash_node[ver]) {
-			if (i < *last) {
-				i++;
-				continue;
-			}
-			*last = i + 1;
-			return flow;
-		}
-		(*bucket)++;
-		*last = 0;
-	}
-
-	return NULL;
-}
-
-static void __tbl_insert(struct flow_table *table, struct sw_flow *flow)
-{
-	struct hlist_head *head;
-
-	head = find_bucket(table, flow->hash);
-	hlist_add_head_rcu(&flow->hash_node[table->node_ver], head);
-
-	table->count++;
-}
-
-static void flow_table_copy_flows(struct flow_table *old, struct flow_table *new)
-{
-	int old_ver;
-	int i;
-
-	old_ver = old->node_ver;
-	new->node_ver = !old_ver;
-
-	/* Insert in new table. */
-	for (i = 0; i < old->n_buckets; i++) {
-		struct sw_flow *flow;
-		struct hlist_head *head;
-
-		head = flex_array_get(old->buckets, i);
-
-		hlist_for_each_entry(flow, head, hash_node[old_ver])
-			__tbl_insert(new, flow);
-	}
-
-	new->mask_list = old->mask_list;
-	old->keep_flows = true;
-}
-
-static struct flow_table *__flow_tbl_rehash(struct flow_table *table, int n_buckets)
-{
-	struct flow_table *new_table;
-
-	new_table = __flow_tbl_alloc(n_buckets);
-	if (!new_table)
-		return ERR_PTR(-ENOMEM);
-
-	flow_table_copy_flows(table, new_table);
-
-	return new_table;
-}
-
-struct flow_table *ovs_flow_tbl_rehash(struct flow_table *table)
-{
-	return __flow_tbl_rehash(table, table->n_buckets);
-}
-
-struct flow_table *ovs_flow_tbl_expand(struct flow_table *table)
-{
-	return __flow_tbl_rehash(table, table->n_buckets * 2);
-}
-
-static void __flow_free(struct sw_flow *flow)
-{
-	kfree((struct sf_flow_acts __force *)flow->sf_acts);
-	kmem_cache_free(flow_cache, flow);
-}
-
-static void rcu_free_flow_callback(struct rcu_head *rcu)
-{
-	struct sw_flow *flow = container_of(rcu, struct sw_flow, rcu);
-
-	__flow_free(flow);
-}
-
-void ovs_flow_free(struct sw_flow *flow, bool deferred)
-{
-	if (!flow)
-		return;
-
-	ovs_sw_flow_mask_del_ref(flow->mask, deferred);
-
-	if (deferred)
-		call_rcu(&flow->rcu, rcu_free_flow_callback);
-	else
-		__flow_free(flow);
-}
-
-/* Schedules 'sf_acts' to be freed after the next RCU grace period.
- * The caller must hold rcu_read_lock for this to be sensible. */
-void ovs_flow_deferred_free_acts(struct sw_flow_actions *sf_acts)
-{
-	kfree_rcu(sf_acts, rcu);
-}
-
 static int parse_vlan(struct sk_buff *skb, struct sw_flow_key *key)
 {
 	struct qtag_prefix {
@@ -1002,1080 +522,3 @@ int ovs_flow_extract(struct sk_buff *skb, u16 in_port, struct sw_flow_key *key)
 
 	return 0;
 }
-
-static u32 ovs_flow_hash(const struct sw_flow_key *key, int key_start,
-			 int key_end)
-{
-	u32 *hash_key = (u32 *)((u8 *)key + key_start);
-	int hash_u32s = (key_end - key_start) >> 2;
-
-	/* Make sure number of hash bytes are multiple of u32. */
-	BUILD_BUG_ON(sizeof(long) % sizeof(u32));
-
-	return jhash2(hash_key, hash_u32s, 0);
-}
-
-static int flow_key_start(const struct sw_flow_key *key)
-{
-	if (key->tun_key.ipv4_dst)
-		return 0;
-	else
-		return rounddown(offsetof(struct sw_flow_key, phy),
-					  sizeof(long));
-}
-
-static bool __cmp_key(const struct sw_flow_key *key1,
-		const struct sw_flow_key *key2,  int key_start, int key_end)
-{
-	const long *cp1 = (long *)((u8 *)key1 + key_start);
-	const long *cp2 = (long *)((u8 *)key2 + key_start);
-	long diffs = 0;
-	int i;
-
-	for (i = key_start; i < key_end;  i += sizeof(long))
-		diffs |= *cp1++ ^ *cp2++;
-
-	return diffs == 0;
-}
-
-static bool __flow_cmp_masked_key(const struct sw_flow *flow,
-		const struct sw_flow_key *key, int key_start, int key_end)
-{
-	return __cmp_key(&flow->key, key, key_start, key_end);
-}
-
-static bool __flow_cmp_unmasked_key(const struct sw_flow *flow,
-		  const struct sw_flow_key *key, int key_start, int key_end)
-{
-	return __cmp_key(&flow->unmasked_key, key, key_start, key_end);
-}
-
-bool ovs_flow_cmp_unmasked_key(const struct sw_flow *flow,
-		const struct sw_flow_key *key, int key_end)
-{
-	int key_start;
-	key_start = flow_key_start(key);
-
-	return __flow_cmp_unmasked_key(flow, key, key_start, key_end);
-
-}
-
-struct sw_flow *ovs_flow_lookup_unmasked_key(struct flow_table *table,
-				       struct sw_flow_match *match)
-{
-	struct sw_flow_key *unmasked = match->key;
-	int key_end = match->range.end;
-	struct sw_flow *flow;
-
-	flow = ovs_flow_lookup(table, unmasked);
-	if (flow && (!ovs_flow_cmp_unmasked_key(flow, unmasked, key_end)))
-		flow = NULL;
-
-	return flow;
-}
-
-static struct sw_flow *ovs_masked_flow_lookup(struct flow_table *table,
-				    const struct sw_flow_key *unmasked,
-				    struct sw_flow_mask *mask)
-{
-	struct sw_flow *flow;
-	struct hlist_head *head;
-	int key_start = mask->range.start;
-	int key_end = mask->range.end;
-	u32 hash;
-	struct sw_flow_key masked_key;
-
-	ovs_flow_key_mask(&masked_key, unmasked, mask);
-	hash = ovs_flow_hash(&masked_key, key_start, key_end);
-	head = find_bucket(table, hash);
-	hlist_for_each_entry_rcu(flow, head, hash_node[table->node_ver]) {
-		if (flow->mask == mask &&
-		    __flow_cmp_masked_key(flow, &masked_key,
-					  key_start, key_end))
-			return flow;
-	}
-	return NULL;
-}
-
-struct sw_flow *ovs_flow_lookup(struct flow_table *tbl,
-				const struct sw_flow_key *key)
-{
-	struct sw_flow *flow = NULL;
-	struct sw_flow_mask *mask;
-
-	list_for_each_entry_rcu(mask, tbl->mask_list, list) {
-		flow = ovs_masked_flow_lookup(tbl, key, mask);
-		if (flow)  /* Found */
-			break;
-	}
-
-	return flow;
-}
-
-
-void ovs_flow_insert(struct flow_table *table, struct sw_flow *flow)
-{
-	flow->hash = ovs_flow_hash(&flow->key, flow->mask->range.start,
-			flow->mask->range.end);
-	__tbl_insert(table, flow);
-}
-
-void ovs_flow_remove(struct flow_table *table, struct sw_flow *flow)
-{
-	BUG_ON(table->count == 0);
-	hlist_del_rcu(&flow->hash_node[table->node_ver]);
-	table->count--;
-}
-
-/* The size of the argument for each %OVS_KEY_ATTR_* Netlink attribute.  */
-const int ovs_key_lens[OVS_KEY_ATTR_MAX + 1] = {
-	[OVS_KEY_ATTR_ENCAP] = -1,
-	[OVS_KEY_ATTR_PRIORITY] = sizeof(u32),
-	[OVS_KEY_ATTR_IN_PORT] = sizeof(u32),
-	[OVS_KEY_ATTR_SKB_MARK] = sizeof(u32),
-	[OVS_KEY_ATTR_ETHERNET] = sizeof(struct ovs_key_ethernet),
-	[OVS_KEY_ATTR_VLAN] = sizeof(__be16),
-	[OVS_KEY_ATTR_ETHERTYPE] = sizeof(__be16),
-	[OVS_KEY_ATTR_IPV4] = sizeof(struct ovs_key_ipv4),
-	[OVS_KEY_ATTR_IPV6] = sizeof(struct ovs_key_ipv6),
-	[OVS_KEY_ATTR_TCP] = sizeof(struct ovs_key_tcp),
-	[OVS_KEY_ATTR_UDP] = sizeof(struct ovs_key_udp),
-	[OVS_KEY_ATTR_SCTP] = sizeof(struct ovs_key_sctp),
-	[OVS_KEY_ATTR_ICMP] = sizeof(struct ovs_key_icmp),
-	[OVS_KEY_ATTR_ICMPV6] = sizeof(struct ovs_key_icmpv6),
-	[OVS_KEY_ATTR_ARP] = sizeof(struct ovs_key_arp),
-	[OVS_KEY_ATTR_ND] = sizeof(struct ovs_key_nd),
-	[OVS_KEY_ATTR_TUNNEL] = -1,
-};
-
-static bool is_all_zero(const u8 *fp, size_t size)
-{
-	int i;
-
-	if (!fp)
-		return false;
-
-	for (i = 0; i < size; i++)
-		if (fp[i])
-			return false;
-
-	return true;
-}
-
-static int __parse_flow_nlattrs(const struct nlattr *attr,
-			      const struct nlattr *a[],
-			      u64 *attrsp, bool nz)
-{
-	const struct nlattr *nla;
-	u32 attrs;
-	int rem;
-
-	attrs = *attrsp;
-	nla_for_each_nested(nla, attr, rem) {
-		u16 type = nla_type(nla);
-		int expected_len;
-
-		if (type > OVS_KEY_ATTR_MAX) {
-			OVS_NLERR("Unknown key attribute (type=%d, max=%d).\n",
-				  type, OVS_KEY_ATTR_MAX);
-			return -EINVAL;
-		}
-
-		if (attrs & (1 << type)) {
-			OVS_NLERR("Duplicate key attribute (type %d).\n", type);
-			return -EINVAL;
-		}
-
-		expected_len = ovs_key_lens[type];
-		if (nla_len(nla) != expected_len && expected_len != -1) {
-			OVS_NLERR("Key attribute has unexpected length (type=%d"
-				  ", length=%d, expected=%d).\n", type,
-				  nla_len(nla), expected_len);
-			return -EINVAL;
-		}
-
-		if (!nz || !is_all_zero(nla_data(nla), expected_len)) {
-			attrs |= 1 << type;
-			a[type] = nla;
-		}
-	}
-	if (rem) {
-		OVS_NLERR("Message has %d unknown bytes.\n", rem);
-		return -EINVAL;
-	}
-
-	*attrsp = attrs;
-	return 0;
-}
-
-static int parse_flow_mask_nlattrs(const struct nlattr *attr,
-			      const struct nlattr *a[], u64 *attrsp)
-{
-	return __parse_flow_nlattrs(attr, a, attrsp, true);
-}
-
-static int parse_flow_nlattrs(const struct nlattr *attr,
-			      const struct nlattr *a[], u64 *attrsp)
-{
-	return __parse_flow_nlattrs(attr, a, attrsp, false);
-}
-
-int ovs_ipv4_tun_from_nlattr(const struct nlattr *attr,
-			     struct sw_flow_match *match, bool is_mask)
-{
-	struct nlattr *a;
-	int rem;
-	bool ttl = false;
-	__be16 tun_flags = 0;
-
-	nla_for_each_nested(a, attr, rem) {
-		int type = nla_type(a);
-		static const u32 ovs_tunnel_key_lens[OVS_TUNNEL_KEY_ATTR_MAX + 1] = {
-			[OVS_TUNNEL_KEY_ATTR_ID] = sizeof(u64),
-			[OVS_TUNNEL_KEY_ATTR_IPV4_SRC] = sizeof(u32),
-			[OVS_TUNNEL_KEY_ATTR_IPV4_DST] = sizeof(u32),
-			[OVS_TUNNEL_KEY_ATTR_TOS] = 1,
-			[OVS_TUNNEL_KEY_ATTR_TTL] = 1,
-			[OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT] = 0,
-			[OVS_TUNNEL_KEY_ATTR_CSUM] = 0,
-		};
-
-		if (type > OVS_TUNNEL_KEY_ATTR_MAX) {
-			OVS_NLERR("Unknown IPv4 tunnel attribute (type=%d, max=%d).\n",
-			type, OVS_TUNNEL_KEY_ATTR_MAX);
-			return -EINVAL;
-		}
-
-		if (ovs_tunnel_key_lens[type] != nla_len(a)) {
-			OVS_NLERR("IPv4 tunnel attribute type has unexpected "
-				  " length (type=%d, length=%d, expected=%d).\n",
-				  type, nla_len(a), ovs_tunnel_key_lens[type]);
-			return -EINVAL;
-		}
-
-		switch (type) {
-		case OVS_TUNNEL_KEY_ATTR_ID:
-			SW_FLOW_KEY_PUT(match, tun_key.tun_id,
-					nla_get_be64(a), is_mask);
-			tun_flags |= TUNNEL_KEY;
-			break;
-		case OVS_TUNNEL_KEY_ATTR_IPV4_SRC:
-			SW_FLOW_KEY_PUT(match, tun_key.ipv4_src,
-					nla_get_be32(a), is_mask);
-			break;
-		case OVS_TUNNEL_KEY_ATTR_IPV4_DST:
-			SW_FLOW_KEY_PUT(match, tun_key.ipv4_dst,
-					nla_get_be32(a), is_mask);
-			break;
-		case OVS_TUNNEL_KEY_ATTR_TOS:
-			SW_FLOW_KEY_PUT(match, tun_key.ipv4_tos,
-					nla_get_u8(a), is_mask);
-			break;
-		case OVS_TUNNEL_KEY_ATTR_TTL:
-			SW_FLOW_KEY_PUT(match, tun_key.ipv4_ttl,
-					nla_get_u8(a), is_mask);
-			ttl = true;
-			break;
-		case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
-			tun_flags |= TUNNEL_DONT_FRAGMENT;
-			break;
-		case OVS_TUNNEL_KEY_ATTR_CSUM:
-			tun_flags |= TUNNEL_CSUM;
-			break;
-		default:
-			return -EINVAL;
-		}
-	}
-
-	SW_FLOW_KEY_PUT(match, tun_key.tun_flags, tun_flags, is_mask);
-
-	if (rem > 0) {
-		OVS_NLERR("IPv4 tunnel attribute has %d unknown bytes.\n", rem);
-		return -EINVAL;
-	}
-
-	if (!is_mask) {
-		if (!match->key->tun_key.ipv4_dst) {
-			OVS_NLERR("IPv4 tunnel destination address is zero.\n");
-			return -EINVAL;
-		}
-
-		if (!ttl) {
-			OVS_NLERR("IPv4 tunnel TTL not specified.\n");
-			return -EINVAL;
-		}
-	}
-
-	return 0;
-}
-
-int ovs_ipv4_tun_to_nlattr(struct sk_buff *skb,
-			   const struct ovs_key_ipv4_tunnel *tun_key,
-			   const struct ovs_key_ipv4_tunnel *output)
-{
-	struct nlattr *nla;
-
-	nla = nla_nest_start(skb, OVS_KEY_ATTR_TUNNEL);
-	if (!nla)
-		return -EMSGSIZE;
-
-	if (output->tun_flags & TUNNEL_KEY &&
-	    nla_put_be64(skb, OVS_TUNNEL_KEY_ATTR_ID, output->tun_id))
-		return -EMSGSIZE;
-	if (output->ipv4_src &&
-		nla_put_be32(skb, OVS_TUNNEL_KEY_ATTR_IPV4_SRC, output->ipv4_src))
-		return -EMSGSIZE;
-	if (output->ipv4_dst &&
-		nla_put_be32(skb, OVS_TUNNEL_KEY_ATTR_IPV4_DST, output->ipv4_dst))
-		return -EMSGSIZE;
-	if (output->ipv4_tos &&
-		nla_put_u8(skb, OVS_TUNNEL_KEY_ATTR_TOS, output->ipv4_tos))
-		return -EMSGSIZE;
-	if (nla_put_u8(skb, OVS_TUNNEL_KEY_ATTR_TTL, output->ipv4_ttl))
-		return -EMSGSIZE;
-	if ((output->tun_flags & TUNNEL_DONT_FRAGMENT) &&
-		nla_put_flag(skb, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT))
-		return -EMSGSIZE;
-	if ((output->tun_flags & TUNNEL_CSUM) &&
-		nla_put_flag(skb, OVS_TUNNEL_KEY_ATTR_CSUM))
-		return -EMSGSIZE;
-
-	nla_nest_end(skb, nla);
-	return 0;
-}
-
-static int metadata_from_nlattrs(struct sw_flow_match *match,  u64 *attrs,
-		const struct nlattr **a, bool is_mask)
-{
-	if (*attrs & (1 << OVS_KEY_ATTR_PRIORITY)) {
-		SW_FLOW_KEY_PUT(match, phy.priority,
-			  nla_get_u32(a[OVS_KEY_ATTR_PRIORITY]), is_mask);
-		*attrs &= ~(1 << OVS_KEY_ATTR_PRIORITY);
-	}
-
-	if (*attrs & (1 << OVS_KEY_ATTR_IN_PORT)) {
-		u32 in_port = nla_get_u32(a[OVS_KEY_ATTR_IN_PORT]);
-
-		if (is_mask)
-			in_port = 0xffffffff; /* Always exact match in_port. */
-		else if (in_port >= DP_MAX_PORTS)
-			return -EINVAL;
-
-		SW_FLOW_KEY_PUT(match, phy.in_port, in_port, is_mask);
-		*attrs &= ~(1 << OVS_KEY_ATTR_IN_PORT);
-	} else if (!is_mask) {
-		SW_FLOW_KEY_PUT(match, phy.in_port, DP_MAX_PORTS, is_mask);
-	}
-
-	if (*attrs & (1 << OVS_KEY_ATTR_SKB_MARK)) {
-		uint32_t mark = nla_get_u32(a[OVS_KEY_ATTR_SKB_MARK]);
-
-		SW_FLOW_KEY_PUT(match, phy.skb_mark, mark, is_mask);
-		*attrs &= ~(1 << OVS_KEY_ATTR_SKB_MARK);
-	}
-	if (*attrs & (1 << OVS_KEY_ATTR_TUNNEL)) {
-		if (ovs_ipv4_tun_from_nlattr(a[OVS_KEY_ATTR_TUNNEL], match,
-					is_mask))
-			return -EINVAL;
-		*attrs &= ~(1 << OVS_KEY_ATTR_TUNNEL);
-	}
-	return 0;
-}
-
-static int ovs_key_from_nlattrs(struct sw_flow_match *match,  u64 attrs,
-		const struct nlattr **a, bool is_mask)
-{
-	int err;
-	u64 orig_attrs = attrs;
-
-	err = metadata_from_nlattrs(match, &attrs, a, is_mask);
-	if (err)
-		return err;
-
-	if (attrs & (1 << OVS_KEY_ATTR_ETHERNET)) {
-		const struct ovs_key_ethernet *eth_key;
-
-		eth_key = nla_data(a[OVS_KEY_ATTR_ETHERNET]);
-		SW_FLOW_KEY_MEMCPY(match, eth.src,
-				eth_key->eth_src, ETH_ALEN, is_mask);
-		SW_FLOW_KEY_MEMCPY(match, eth.dst,
-				eth_key->eth_dst, ETH_ALEN, is_mask);
-		attrs &= ~(1 << OVS_KEY_ATTR_ETHERNET);
-	}
-
-	if (attrs & (1 << OVS_KEY_ATTR_VLAN)) {
-		__be16 tci;
-
-		tci = nla_get_be16(a[OVS_KEY_ATTR_VLAN]);
-		if (!(tci & htons(VLAN_TAG_PRESENT))) {
-			if (is_mask)
-				OVS_NLERR("VLAN TCI mask does not have exact match for VLAN_TAG_PRESENT bit.\n");
-			else
-				OVS_NLERR("VLAN TCI does not have VLAN_TAG_PRESENT bit set.\n");
-
-			return -EINVAL;
-		}
-
-		SW_FLOW_KEY_PUT(match, eth.tci, tci, is_mask);
-		attrs &= ~(1 << OVS_KEY_ATTR_VLAN);
-	} else if (!is_mask)
-		SW_FLOW_KEY_PUT(match, eth.tci, htons(0xffff), true);
-
-	if (attrs & (1 << OVS_KEY_ATTR_ETHERTYPE)) {
-		__be16 eth_type;
-
-		eth_type = nla_get_be16(a[OVS_KEY_ATTR_ETHERTYPE]);
-		if (is_mask) {
-			/* Always exact match EtherType. */
-			eth_type = htons(0xffff);
-		} else if (ntohs(eth_type) < ETH_P_802_3_MIN) {
-			OVS_NLERR("EtherType is less than minimum (type=%x, min=%x).\n",
-					ntohs(eth_type), ETH_P_802_3_MIN);
-			return -EINVAL;
-		}
-
-		SW_FLOW_KEY_PUT(match, eth.type, eth_type, is_mask);
-		attrs &= ~(1 << OVS_KEY_ATTR_ETHERTYPE);
-	} else if (!is_mask) {
-		SW_FLOW_KEY_PUT(match, eth.type, htons(ETH_P_802_2), is_mask);
-	}
-
-	if (attrs & (1 << OVS_KEY_ATTR_IPV4)) {
-		const struct ovs_key_ipv4 *ipv4_key;
-
-		ipv4_key = nla_data(a[OVS_KEY_ATTR_IPV4]);
-		if (!is_mask && ipv4_key->ipv4_frag > OVS_FRAG_TYPE_MAX) {
-			OVS_NLERR("Unknown IPv4 fragment type (value=%d, max=%d).\n",
-				ipv4_key->ipv4_frag, OVS_FRAG_TYPE_MAX);
-			return -EINVAL;
-		}
-		SW_FLOW_KEY_PUT(match, ip.proto,
-				ipv4_key->ipv4_proto, is_mask);
-		SW_FLOW_KEY_PUT(match, ip.tos,
-				ipv4_key->ipv4_tos, is_mask);
-		SW_FLOW_KEY_PUT(match, ip.ttl,
-				ipv4_key->ipv4_ttl, is_mask);
-		SW_FLOW_KEY_PUT(match, ip.frag,
-				ipv4_key->ipv4_frag, is_mask);
-		SW_FLOW_KEY_PUT(match, ipv4.addr.src,
-				ipv4_key->ipv4_src, is_mask);
-		SW_FLOW_KEY_PUT(match, ipv4.addr.dst,
-				ipv4_key->ipv4_dst, is_mask);
-		attrs &= ~(1 << OVS_KEY_ATTR_IPV4);
-	}
-
-	if (attrs & (1 << OVS_KEY_ATTR_IPV6)) {
-		const struct ovs_key_ipv6 *ipv6_key;
-
-		ipv6_key = nla_data(a[OVS_KEY_ATTR_IPV6]);
-		if (!is_mask && ipv6_key->ipv6_frag > OVS_FRAG_TYPE_MAX) {
-			OVS_NLERR("Unknown IPv6 fragment type (value=%d, max=%d).\n",
-				ipv6_key->ipv6_frag, OVS_FRAG_TYPE_MAX);
-			return -EINVAL;
-		}
-		SW_FLOW_KEY_PUT(match, ipv6.label,
-				ipv6_key->ipv6_label, is_mask);
-		SW_FLOW_KEY_PUT(match, ip.proto,
-				ipv6_key->ipv6_proto, is_mask);
-		SW_FLOW_KEY_PUT(match, ip.tos,
-				ipv6_key->ipv6_tclass, is_mask);
-		SW_FLOW_KEY_PUT(match, ip.ttl,
-				ipv6_key->ipv6_hlimit, is_mask);
-		SW_FLOW_KEY_PUT(match, ip.frag,
-				ipv6_key->ipv6_frag, is_mask);
-		SW_FLOW_KEY_MEMCPY(match, ipv6.addr.src,
-				ipv6_key->ipv6_src,
-				sizeof(match->key->ipv6.addr.src),
-				is_mask);
-		SW_FLOW_KEY_MEMCPY(match, ipv6.addr.dst,
-				ipv6_key->ipv6_dst,
-				sizeof(match->key->ipv6.addr.dst),
-				is_mask);
-
-		attrs &= ~(1 << OVS_KEY_ATTR_IPV6);
-	}
-
-	if (attrs & (1 << OVS_KEY_ATTR_ARP)) {
-		const struct ovs_key_arp *arp_key;
-
-		arp_key = nla_data(a[OVS_KEY_ATTR_ARP]);
-		if (!is_mask && (arp_key->arp_op & htons(0xff00))) {
-			OVS_NLERR("Unknown ARP opcode (opcode=%d).\n",
-				  arp_key->arp_op);
-			return -EINVAL;
-		}
-
-		SW_FLOW_KEY_PUT(match, ipv4.addr.src,
-				arp_key->arp_sip, is_mask);
-		SW_FLOW_KEY_PUT(match, ipv4.addr.dst,
-			arp_key->arp_tip, is_mask);
-		SW_FLOW_KEY_PUT(match, ip.proto,
-				ntohs(arp_key->arp_op), is_mask);
-		SW_FLOW_KEY_MEMCPY(match, ipv4.arp.sha,
-				arp_key->arp_sha, ETH_ALEN, is_mask);
-		SW_FLOW_KEY_MEMCPY(match, ipv4.arp.tha,
-				arp_key->arp_tha, ETH_ALEN, is_mask);
-
-		attrs &= ~(1 << OVS_KEY_ATTR_ARP);
-	}
-
-	if (attrs & (1 << OVS_KEY_ATTR_TCP)) {
-		const struct ovs_key_tcp *tcp_key;
-
-		tcp_key = nla_data(a[OVS_KEY_ATTR_TCP]);
-		if (orig_attrs & (1 << OVS_KEY_ATTR_IPV4)) {
-			SW_FLOW_KEY_PUT(match, ipv4.tp.src,
-					tcp_key->tcp_src, is_mask);
-			SW_FLOW_KEY_PUT(match, ipv4.tp.dst,
-					tcp_key->tcp_dst, is_mask);
-		} else {
-			SW_FLOW_KEY_PUT(match, ipv6.tp.src,
-					tcp_key->tcp_src, is_mask);
-			SW_FLOW_KEY_PUT(match, ipv6.tp.dst,
-					tcp_key->tcp_dst, is_mask);
-		}
-		attrs &= ~(1 << OVS_KEY_ATTR_TCP);
-	}
-
-	if (attrs & (1 << OVS_KEY_ATTR_UDP)) {
-		const struct ovs_key_udp *udp_key;
-
-		udp_key = nla_data(a[OVS_KEY_ATTR_UDP]);
-		if (orig_attrs & (1 << OVS_KEY_ATTR_IPV4)) {
-			SW_FLOW_KEY_PUT(match, ipv4.tp.src,
-					udp_key->udp_src, is_mask);
-			SW_FLOW_KEY_PUT(match, ipv4.tp.dst,
-					udp_key->udp_dst, is_mask);
-		} else {
-			SW_FLOW_KEY_PUT(match, ipv6.tp.src,
-					udp_key->udp_src, is_mask);
-			SW_FLOW_KEY_PUT(match, ipv6.tp.dst,
-					udp_key->udp_dst, is_mask);
-		}
-		attrs &= ~(1 << OVS_KEY_ATTR_UDP);
-	}
-
-	if (attrs & (1 << OVS_KEY_ATTR_SCTP)) {
-		const struct ovs_key_sctp *sctp_key;
-
-		sctp_key = nla_data(a[OVS_KEY_ATTR_SCTP]);
-		if (orig_attrs & (1 << OVS_KEY_ATTR_IPV4)) {
-			SW_FLOW_KEY_PUT(match, ipv4.tp.src,
-					sctp_key->sctp_src, is_mask);
-			SW_FLOW_KEY_PUT(match, ipv4.tp.dst,
-					sctp_key->sctp_dst, is_mask);
-		} else {
-			SW_FLOW_KEY_PUT(match, ipv6.tp.src,
-					sctp_key->sctp_src, is_mask);
-			SW_FLOW_KEY_PUT(match, ipv6.tp.dst,
-					sctp_key->sctp_dst, is_mask);
-		}
-		attrs &= ~(1 << OVS_KEY_ATTR_SCTP);
-	}
-
-	if (attrs & (1 << OVS_KEY_ATTR_ICMP)) {
-		const struct ovs_key_icmp *icmp_key;
-
-		icmp_key = nla_data(a[OVS_KEY_ATTR_ICMP]);
-		SW_FLOW_KEY_PUT(match, ipv4.tp.src,
-				htons(icmp_key->icmp_type), is_mask);
-		SW_FLOW_KEY_PUT(match, ipv4.tp.dst,
-				htons(icmp_key->icmp_code), is_mask);
-		attrs &= ~(1 << OVS_KEY_ATTR_ICMP);
-	}
-
-	if (attrs & (1 << OVS_KEY_ATTR_ICMPV6)) {
-		const struct ovs_key_icmpv6 *icmpv6_key;
-
-		icmpv6_key = nla_data(a[OVS_KEY_ATTR_ICMPV6]);
-		SW_FLOW_KEY_PUT(match, ipv6.tp.src,
-				htons(icmpv6_key->icmpv6_type), is_mask);
-		SW_FLOW_KEY_PUT(match, ipv6.tp.dst,
-				htons(icmpv6_key->icmpv6_code), is_mask);
-		attrs &= ~(1 << OVS_KEY_ATTR_ICMPV6);
-	}
-
-	if (attrs & (1 << OVS_KEY_ATTR_ND)) {
-		const struct ovs_key_nd *nd_key;
-
-		nd_key = nla_data(a[OVS_KEY_ATTR_ND]);
-		SW_FLOW_KEY_MEMCPY(match, ipv6.nd.target,
-			nd_key->nd_target,
-			sizeof(match->key->ipv6.nd.target),
-			is_mask);
-		SW_FLOW_KEY_MEMCPY(match, ipv6.nd.sll,
-			nd_key->nd_sll, ETH_ALEN, is_mask);
-		SW_FLOW_KEY_MEMCPY(match, ipv6.nd.tll,
-				nd_key->nd_tll, ETH_ALEN, is_mask);
-		attrs &= ~(1 << OVS_KEY_ATTR_ND);
-	}
-
-	if (attrs != 0)
-		return -EINVAL;
-
-	return 0;
-}
-
-/**
- * ovs_match_from_nlattrs - parses Netlink attributes into a flow key and
- * mask. In case the 'mask' is NULL, the flow is treated as exact match
- * flow. Otherwise, it is treated as a wildcarded flow, except the mask
- * does not include any don't care bit.
- * @match: receives the extracted flow match information.
- * @key: Netlink attribute holding nested %OVS_KEY_ATTR_* Netlink attribute
- * sequence. The fields should of the packet that triggered the creation
- * of this flow.
- * @mask: Optional. Netlink attribute holding nested %OVS_KEY_ATTR_* Netlink
- * attribute specifies the mask field of the wildcarded flow.
- */
-int ovs_match_from_nlattrs(struct sw_flow_match *match,
-			   const struct nlattr *key,
-			   const struct nlattr *mask)
-{
-	const struct nlattr *a[OVS_KEY_ATTR_MAX + 1];
-	const struct nlattr *encap;
-	u64 key_attrs = 0;
-	u64 mask_attrs = 0;
-	bool encap_valid = false;
-	int err;
-
-	err = parse_flow_nlattrs(key, a, &key_attrs);
-	if (err)
-		return err;
-
-	if ((key_attrs & (1 << OVS_KEY_ATTR_ETHERNET)) &&
-	    (key_attrs & (1 << OVS_KEY_ATTR_ETHERTYPE)) &&
-	    (nla_get_be16(a[OVS_KEY_ATTR_ETHERTYPE]) == htons(ETH_P_8021Q))) {
-		__be16 tci;
-
-		if (!((key_attrs & (1 << OVS_KEY_ATTR_VLAN)) &&
-		      (key_attrs & (1 << OVS_KEY_ATTR_ENCAP)))) {
-			OVS_NLERR("Invalid Vlan frame.\n");
-			return -EINVAL;
-		}
-
-		key_attrs &= ~(1 << OVS_KEY_ATTR_ETHERTYPE);
-		tci = nla_get_be16(a[OVS_KEY_ATTR_VLAN]);
-		encap = a[OVS_KEY_ATTR_ENCAP];
-		key_attrs &= ~(1 << OVS_KEY_ATTR_ENCAP);
-		encap_valid = true;
-
-		if (tci & htons(VLAN_TAG_PRESENT)) {
-			err = parse_flow_nlattrs(encap, a, &key_attrs);
-			if (err)
-				return err;
-		} else if (!tci) {
-			/* Corner case for truncated 802.1Q header. */
-			if (nla_len(encap)) {
-				OVS_NLERR("Truncated 802.1Q header has non-zero encap attribute.\n");
-				return -EINVAL;
-			}
-		} else {
-			OVS_NLERR("Encap attribute is set for a non-VLAN frame.\n");
-			return  -EINVAL;
-		}
-	}
-
-	err = ovs_key_from_nlattrs(match, key_attrs, a, false);
-	if (err)
-		return err;
-
-	if (mask) {
-		err = parse_flow_mask_nlattrs(mask, a, &mask_attrs);
-		if (err)
-			return err;
-
-		if (mask_attrs & 1ULL << OVS_KEY_ATTR_ENCAP)  {
-			__be16 eth_type = 0;
-			__be16 tci = 0;
-
-			if (!encap_valid) {
-				OVS_NLERR("Encap mask attribute is set for non-VLAN frame.\n");
-				return  -EINVAL;
-			}
-
-			mask_attrs &= ~(1 << OVS_KEY_ATTR_ENCAP);
-			if (a[OVS_KEY_ATTR_ETHERTYPE])
-				eth_type = nla_get_be16(a[OVS_KEY_ATTR_ETHERTYPE]);
-
-			if (eth_type == htons(0xffff)) {
-				mask_attrs &= ~(1 << OVS_KEY_ATTR_ETHERTYPE);
-				encap = a[OVS_KEY_ATTR_ENCAP];
-				err = parse_flow_mask_nlattrs(encap, a, &mask_attrs);
-			} else {
-				OVS_NLERR("VLAN frames must have an exact match on the TPID (mask=%x).\n",
-						ntohs(eth_type));
-				return -EINVAL;
-			}
-
-			if (a[OVS_KEY_ATTR_VLAN])
-				tci = nla_get_be16(a[OVS_KEY_ATTR_VLAN]);
-
-			if (!(tci & htons(VLAN_TAG_PRESENT))) {
-				OVS_NLERR("VLAN tag present bit must have an exact match (tci_mask=%x).\n", ntohs(tci));
-				return -EINVAL;
-			}
-		}
-
-		err = ovs_key_from_nlattrs(match, mask_attrs, a, true);
-		if (err)
-			return err;
-	} else {
-		/* Populate exact match flow's key mask. */
-		if (match->mask)
-			ovs_sw_flow_mask_set(match->mask, &match->range, 0xff);
-	}
-
-	if (!ovs_match_validate(match, key_attrs, mask_attrs))
-		return -EINVAL;
-
-	return 0;
-}
-
-/**
- * ovs_flow_metadata_from_nlattrs - parses Netlink attributes into a flow key.
- * @flow: Receives extracted in_port, priority, tun_key and skb_mark.
- * @attr: Netlink attribute holding nested %OVS_KEY_ATTR_* Netlink attribute
- * sequence.
- *
- * This parses a series of Netlink attributes that form a flow key, which must
- * take the same form accepted by flow_from_nlattrs(), but only enough of it to
- * get the metadata, that is, the parts of the flow key that cannot be
- * extracted from the packet itself.
- */
-
-int ovs_flow_metadata_from_nlattrs(struct sw_flow *flow,
-		const struct nlattr *attr)
-{
-	struct ovs_key_ipv4_tunnel *tun_key = &flow->key.tun_key;
-	const struct nlattr *a[OVS_KEY_ATTR_MAX + 1];
-	u64 attrs = 0;
-	int err;
-	struct sw_flow_match match;
-
-	flow->key.phy.in_port = DP_MAX_PORTS;
-	flow->key.phy.priority = 0;
-	flow->key.phy.skb_mark = 0;
-	memset(tun_key, 0, sizeof(flow->key.tun_key));
-
-	err = parse_flow_nlattrs(attr, a, &attrs);
-	if (err)
-		return -EINVAL;
-
-	memset(&match, 0, sizeof(match));
-	match.key = &flow->key;
-
-	err = metadata_from_nlattrs(&match, &attrs, a, false);
-	if (err)
-		return err;
-
-	return 0;
-}
-
-int ovs_flow_to_nlattrs(const struct sw_flow_key *swkey,
-		const struct sw_flow_key *output, struct sk_buff *skb)
-{
-	struct ovs_key_ethernet *eth_key;
-	struct nlattr *nla, *encap;
-	bool is_mask = (swkey != output);
-
-	if (nla_put_u32(skb, OVS_KEY_ATTR_PRIORITY, output->phy.priority))
-		goto nla_put_failure;
-
-	if ((swkey->tun_key.ipv4_dst || is_mask) &&
-	    ovs_ipv4_tun_to_nlattr(skb, &swkey->tun_key, &output->tun_key))
-		goto nla_put_failure;
-
-	if (swkey->phy.in_port == DP_MAX_PORTS) {
-		if (is_mask && (output->phy.in_port == 0xffff))
-			if (nla_put_u32(skb, OVS_KEY_ATTR_IN_PORT, 0xffffffff))
-				goto nla_put_failure;
-	} else {
-		u16 upper_u16;
-		upper_u16 = !is_mask ? 0 : 0xffff;
-
-		if (nla_put_u32(skb, OVS_KEY_ATTR_IN_PORT,
-				(upper_u16 << 16) | output->phy.in_port))
-			goto nla_put_failure;
-	}
-
-	if (nla_put_u32(skb, OVS_KEY_ATTR_SKB_MARK, output->phy.skb_mark))
-		goto nla_put_failure;
-
-	nla = nla_reserve(skb, OVS_KEY_ATTR_ETHERNET, sizeof(*eth_key));
-	if (!nla)
-		goto nla_put_failure;
-
-	eth_key = nla_data(nla);
-	memcpy(eth_key->eth_src, output->eth.src, ETH_ALEN);
-	memcpy(eth_key->eth_dst, output->eth.dst, ETH_ALEN);
-
-	if (swkey->eth.tci || swkey->eth.type == htons(ETH_P_8021Q)) {
-		__be16 eth_type;
-		eth_type = !is_mask ? htons(ETH_P_8021Q) : htons(0xffff);
-		if (nla_put_be16(skb, OVS_KEY_ATTR_ETHERTYPE, eth_type) ||
-		    nla_put_be16(skb, OVS_KEY_ATTR_VLAN, output->eth.tci))
-			goto nla_put_failure;
-		encap = nla_nest_start(skb, OVS_KEY_ATTR_ENCAP);
-		if (!swkey->eth.tci)
-			goto unencap;
-	} else
-		encap = NULL;
-
-	if (swkey->eth.type == htons(ETH_P_802_2)) {
-		/*
-		 * Ethertype 802.2 is represented in the netlink with omitted
-		 * OVS_KEY_ATTR_ETHERTYPE in the flow key attribute, and
-		 * 0xffff in the mask attribute.  Ethertype can also
-		 * be wildcarded.
-		 */
-		if (is_mask && output->eth.type)
-			if (nla_put_be16(skb, OVS_KEY_ATTR_ETHERTYPE,
-						output->eth.type))
-				goto nla_put_failure;
-		goto unencap;
-	}
-
-	if (nla_put_be16(skb, OVS_KEY_ATTR_ETHERTYPE, output->eth.type))
-		goto nla_put_failure;
-
-	if (swkey->eth.type == htons(ETH_P_IP)) {
-		struct ovs_key_ipv4 *ipv4_key;
-
-		nla = nla_reserve(skb, OVS_KEY_ATTR_IPV4, sizeof(*ipv4_key));
-		if (!nla)
-			goto nla_put_failure;
-		ipv4_key = nla_data(nla);
-		ipv4_key->ipv4_src = output->ipv4.addr.src;
-		ipv4_key->ipv4_dst = output->ipv4.addr.dst;
-		ipv4_key->ipv4_proto = output->ip.proto;
-		ipv4_key->ipv4_tos = output->ip.tos;
-		ipv4_key->ipv4_ttl = output->ip.ttl;
-		ipv4_key->ipv4_frag = output->ip.frag;
-	} else if (swkey->eth.type == htons(ETH_P_IPV6)) {
-		struct ovs_key_ipv6 *ipv6_key;
-
-		nla = nla_reserve(skb, OVS_KEY_ATTR_IPV6, sizeof(*ipv6_key));
-		if (!nla)
-			goto nla_put_failure;
-		ipv6_key = nla_data(nla);
-		memcpy(ipv6_key->ipv6_src, &output->ipv6.addr.src,
-				sizeof(ipv6_key->ipv6_src));
-		memcpy(ipv6_key->ipv6_dst, &output->ipv6.addr.dst,
-				sizeof(ipv6_key->ipv6_dst));
-		ipv6_key->ipv6_label = output->ipv6.label;
-		ipv6_key->ipv6_proto = output->ip.proto;
-		ipv6_key->ipv6_tclass = output->ip.tos;
-		ipv6_key->ipv6_hlimit = output->ip.ttl;
-		ipv6_key->ipv6_frag = output->ip.frag;
-	} else if (swkey->eth.type == htons(ETH_P_ARP) ||
-		   swkey->eth.type == htons(ETH_P_RARP)) {
-		struct ovs_key_arp *arp_key;
-
-		nla = nla_reserve(skb, OVS_KEY_ATTR_ARP, sizeof(*arp_key));
-		if (!nla)
-			goto nla_put_failure;
-		arp_key = nla_data(nla);
-		memset(arp_key, 0, sizeof(struct ovs_key_arp));
-		arp_key->arp_sip = output->ipv4.addr.src;
-		arp_key->arp_tip = output->ipv4.addr.dst;
-		arp_key->arp_op = htons(output->ip.proto);
-		memcpy(arp_key->arp_sha, output->ipv4.arp.sha, ETH_ALEN);
-		memcpy(arp_key->arp_tha, output->ipv4.arp.tha, ETH_ALEN);
-	}
-
-	if ((swkey->eth.type == htons(ETH_P_IP) ||
-	     swkey->eth.type == htons(ETH_P_IPV6)) &&
-	     swkey->ip.frag != OVS_FRAG_TYPE_LATER) {
-
-		if (swkey->ip.proto == IPPROTO_TCP) {
-			struct ovs_key_tcp *tcp_key;
-
-			nla = nla_reserve(skb, OVS_KEY_ATTR_TCP, sizeof(*tcp_key));
-			if (!nla)
-				goto nla_put_failure;
-			tcp_key = nla_data(nla);
-			if (swkey->eth.type == htons(ETH_P_IP)) {
-				tcp_key->tcp_src = output->ipv4.tp.src;
-				tcp_key->tcp_dst = output->ipv4.tp.dst;
-			} else if (swkey->eth.type == htons(ETH_P_IPV6)) {
-				tcp_key->tcp_src = output->ipv6.tp.src;
-				tcp_key->tcp_dst = output->ipv6.tp.dst;
-			}
-		} else if (swkey->ip.proto == IPPROTO_UDP) {
-			struct ovs_key_udp *udp_key;
-
-			nla = nla_reserve(skb, OVS_KEY_ATTR_UDP, sizeof(*udp_key));
-			if (!nla)
-				goto nla_put_failure;
-			udp_key = nla_data(nla);
-			if (swkey->eth.type == htons(ETH_P_IP)) {
-				udp_key->udp_src = output->ipv4.tp.src;
-				udp_key->udp_dst = output->ipv4.tp.dst;
-			} else if (swkey->eth.type == htons(ETH_P_IPV6)) {
-				udp_key->udp_src = output->ipv6.tp.src;
-				udp_key->udp_dst = output->ipv6.tp.dst;
-			}
-		} else if (swkey->ip.proto == IPPROTO_SCTP) {
-			struct ovs_key_sctp *sctp_key;
-
-			nla = nla_reserve(skb, OVS_KEY_ATTR_SCTP, sizeof(*sctp_key));
-			if (!nla)
-				goto nla_put_failure;
-			sctp_key = nla_data(nla);
-			if (swkey->eth.type == htons(ETH_P_IP)) {
-				sctp_key->sctp_src = swkey->ipv4.tp.src;
-				sctp_key->sctp_dst = swkey->ipv4.tp.dst;
-			} else if (swkey->eth.type == htons(ETH_P_IPV6)) {
-				sctp_key->sctp_src = swkey->ipv6.tp.src;
-				sctp_key->sctp_dst = swkey->ipv6.tp.dst;
-			}
-		} else if (swkey->eth.type == htons(ETH_P_IP) &&
-			   swkey->ip.proto == IPPROTO_ICMP) {
-			struct ovs_key_icmp *icmp_key;
-
-			nla = nla_reserve(skb, OVS_KEY_ATTR_ICMP, sizeof(*icmp_key));
-			if (!nla)
-				goto nla_put_failure;
-			icmp_key = nla_data(nla);
-			icmp_key->icmp_type = ntohs(output->ipv4.tp.src);
-			icmp_key->icmp_code = ntohs(output->ipv4.tp.dst);
-		} else if (swkey->eth.type == htons(ETH_P_IPV6) &&
-			   swkey->ip.proto == IPPROTO_ICMPV6) {
-			struct ovs_key_icmpv6 *icmpv6_key;
-
-			nla = nla_reserve(skb, OVS_KEY_ATTR_ICMPV6,
-						sizeof(*icmpv6_key));
-			if (!nla)
-				goto nla_put_failure;
-			icmpv6_key = nla_data(nla);
-			icmpv6_key->icmpv6_type = ntohs(output->ipv6.tp.src);
-			icmpv6_key->icmpv6_code = ntohs(output->ipv6.tp.dst);
-
-			if (icmpv6_key->icmpv6_type == NDISC_NEIGHBOUR_SOLICITATION ||
-			    icmpv6_key->icmpv6_type == NDISC_NEIGHBOUR_ADVERTISEMENT) {
-				struct ovs_key_nd *nd_key;
-
-				nla = nla_reserve(skb, OVS_KEY_ATTR_ND, sizeof(*nd_key));
-				if (!nla)
-					goto nla_put_failure;
-				nd_key = nla_data(nla);
-				memcpy(nd_key->nd_target, &output->ipv6.nd.target,
-							sizeof(nd_key->nd_target));
-				memcpy(nd_key->nd_sll, output->ipv6.nd.sll, ETH_ALEN);
-				memcpy(nd_key->nd_tll, output->ipv6.nd.tll, ETH_ALEN);
-			}
-		}
-	}
-
-unencap:
-	if (encap)
-		nla_nest_end(skb, encap);
-
-	return 0;
-
-nla_put_failure:
-	return -EMSGSIZE;
-}
-
-/* Initializes the flow module.
- * Returns zero if successful or a negative error code. */
-int ovs_flow_init(void)
-{
-	BUILD_BUG_ON(__alignof__(struct sw_flow_key) % __alignof__(long));
-	BUILD_BUG_ON(sizeof(struct sw_flow_key) % sizeof(long));
-
-	flow_cache = kmem_cache_create("sw_flow", sizeof(struct sw_flow), 0,
-					0, NULL);
-	if (flow_cache == NULL)
-		return -ENOMEM;
-
-	return 0;
-}
-
-/* Uninitializes the flow module. */
-void ovs_flow_exit(void)
-{
-	kmem_cache_destroy(flow_cache);
-}
-
-struct sw_flow_mask *ovs_sw_flow_mask_alloc(void)
-{
-	struct sw_flow_mask *mask;
-
-	mask = kmalloc(sizeof(*mask), GFP_KERNEL);
-	if (mask)
-		mask->ref_count = 0;
-
-	return mask;
-}
-
-void ovs_sw_flow_mask_add_ref(struct sw_flow_mask *mask)
-{
-	mask->ref_count++;
-}
-
-void ovs_sw_flow_mask_del_ref(struct sw_flow_mask *mask, bool deferred)
-{
-	if (!mask)
-		return;
-
-	BUG_ON(!mask->ref_count);
-	mask->ref_count--;
-
-	if (!mask->ref_count) {
-		list_del_rcu(&mask->list);
-		if (deferred)
-			kfree_rcu(mask, rcu);
-		else
-			kfree(mask);
-	}
-}
-
-static bool ovs_sw_flow_mask_equal(const struct sw_flow_mask *a,
-		const struct sw_flow_mask *b)
-{
-	u8 *a_ = (u8 *)&a->key + a->range.start;
-	u8 *b_ = (u8 *)&b->key + b->range.start;
-
-	return  (a->range.end == b->range.end)
-		&& (a->range.start == b->range.start)
-		&& (memcmp(a_, b_, range_n_bytes(&a->range)) == 0);
-}
-
-struct sw_flow_mask *ovs_sw_flow_mask_find(const struct flow_table *tbl,
-                                           const struct sw_flow_mask *mask)
-{
-	struct list_head *ml;
-
-	list_for_each(ml, tbl->mask_list) {
-		struct sw_flow_mask *m;
-		m = container_of(ml, struct sw_flow_mask, list);
-		if (ovs_sw_flow_mask_equal(mask, m))
-			return m;
-	}
-
-	return NULL;
-}
-
-/**
- * add a new mask into the mask list.
- * The caller needs to make sure that 'mask' is not the same
- * as any masks that are already on the list.
- */
-void ovs_sw_flow_mask_insert(struct flow_table *tbl, struct sw_flow_mask *mask)
-{
-	list_add_rcu(&mask->list, tbl->mask_list);
-}
-
-/**
- * Set 'range' fields in the mask to the value of 'val'.
- */
-static void ovs_sw_flow_mask_set(struct sw_flow_mask *mask,
-		struct sw_flow_key_range *range, u8 val)
-{
-	u8 *m = (u8 *)&mask->key + range->start;
-
-	mask->range = *range;
-	memset(m, val, range_n_bytes(range));
-}
diff --git a/net/openvswitch/flow.h b/net/openvswitch/flow.h
index 212fbf7510c4..098fd1db6a23 100644
--- a/net/openvswitch/flow.h
+++ b/net/openvswitch/flow.h
@@ -33,14 +33,6 @@
 #include <net/inet_ecn.h>
 
 struct sk_buff;
-struct sw_flow_mask;
-struct flow_table;
-
-struct sw_flow_actions {
-	struct rcu_head rcu;
-	u32 actions_len;
-	struct nlattr actions[];
-};
 
 /* Used to memset ovs_key_ipv4_tunnel padding. */
 #define OVS_TUNNEL_KEY_SIZE					\
@@ -127,6 +119,31 @@ struct sw_flow_key {
 	};
 } __aligned(BITS_PER_LONG/8); /* Ensure that we can do comparisons as longs. */
 
+struct sw_flow_key_range {
+	size_t start;
+	size_t end;
+};
+
+struct sw_flow_mask {
+	int ref_count;
+	struct rcu_head rcu;
+	struct list_head list;
+	struct sw_flow_key_range range;
+	struct sw_flow_key key;
+};
+
+struct sw_flow_match {
+	struct sw_flow_key *key;
+	struct sw_flow_key_range range;
+	struct sw_flow_mask *mask;
+};
+
+struct sw_flow_actions {
+	struct rcu_head rcu;
+	u32 actions_len;
+	struct nlattr actions[];
+};
+
 struct sw_flow {
 	struct rcu_head rcu;
 	struct hlist_node hash_node[2];
@@ -144,20 +161,6 @@ struct sw_flow {
 	u8 tcp_flags;		/* Union of seen TCP flags. */
 };
 
-struct sw_flow_key_range {
-	size_t start;
-	size_t end;
-};
-
-struct sw_flow_match {
-	struct sw_flow_key *key;
-	struct sw_flow_key_range range;
-	struct sw_flow_mask *mask;
-};
-
-void ovs_match_init(struct sw_flow_match *match,
-		struct sw_flow_key *key, struct sw_flow_mask *mask);
-
 struct arp_eth_header {
 	__be16      ar_hrd;	/* format of hardware address   */
 	__be16      ar_pro;	/* format of protocol address   */
@@ -172,88 +175,9 @@ struct arp_eth_header {
 	unsigned char       ar_tip[4];		/* target IP address        */
 } __packed;
 
-int ovs_flow_init(void);
-void ovs_flow_exit(void);
-
-struct sw_flow *ovs_flow_alloc(void);
-void ovs_flow_deferred_free(struct sw_flow *);
-void ovs_flow_free(struct sw_flow *, bool deferred);
-
-struct sw_flow_actions *ovs_flow_actions_alloc(int actions_len);
-void ovs_flow_deferred_free_acts(struct sw_flow_actions *);
-
-int ovs_flow_extract(struct sk_buff *, u16 in_port, struct sw_flow_key *);
 void ovs_flow_used(struct sw_flow *, struct sk_buff *);
 u64 ovs_flow_used_time(unsigned long flow_jiffies);
-int ovs_flow_to_nlattrs(const struct sw_flow_key *,
-		const struct sw_flow_key *, struct sk_buff *);
-int ovs_match_from_nlattrs(struct sw_flow_match *match,
-		      const struct nlattr *,
-		      const struct nlattr *);
-int ovs_flow_metadata_from_nlattrs(struct sw_flow *flow,
-		const struct nlattr *attr);
 
-#define MAX_ACTIONS_BUFSIZE    (32 * 1024)
-#define TBL_MIN_BUCKETS		1024
-
-struct flow_table {
-	struct flex_array *buckets;
-	unsigned int count, n_buckets;
-	struct rcu_head rcu;
-	struct list_head *mask_list;
-	int node_ver;
-	u32 hash_seed;
-	bool keep_flows;
-};
-
-static inline int ovs_flow_tbl_count(struct flow_table *table)
-{
-	return table->count;
-}
-
-static inline int ovs_flow_tbl_need_to_expand(struct flow_table *table)
-{
-	return (table->count > table->n_buckets);
-}
-
-struct sw_flow *ovs_flow_lookup(struct flow_table *,
-				const struct sw_flow_key *);
-struct sw_flow *ovs_flow_lookup_unmasked_key(struct flow_table *table,
-				    struct sw_flow_match *match);
-
-void ovs_flow_tbl_destroy(struct flow_table *table, bool deferred);
-struct flow_table *ovs_flow_tbl_alloc(int new_size);
-struct flow_table *ovs_flow_tbl_expand(struct flow_table *table);
-struct flow_table *ovs_flow_tbl_rehash(struct flow_table *table);
-
-void ovs_flow_insert(struct flow_table *table, struct sw_flow *flow);
-void ovs_flow_remove(struct flow_table *table, struct sw_flow *flow);
-
-struct sw_flow *ovs_flow_dump_next(struct flow_table *table, u32 *bucket, u32 *idx);
-extern const int ovs_key_lens[OVS_KEY_ATTR_MAX + 1];
-int ovs_ipv4_tun_from_nlattr(const struct nlattr *attr,
-			     struct sw_flow_match *match, bool is_mask);
-int ovs_ipv4_tun_to_nlattr(struct sk_buff *skb,
-			   const struct ovs_key_ipv4_tunnel *tun_key,
-			   const struct ovs_key_ipv4_tunnel *output);
-
-bool ovs_flow_cmp_unmasked_key(const struct sw_flow *flow,
-		const struct sw_flow_key *key, int key_end);
-
-struct sw_flow_mask {
-	int ref_count;
-	struct rcu_head rcu;
-	struct list_head list;
-	struct sw_flow_key_range range;
-	struct sw_flow_key key;
-};
+int ovs_flow_extract(struct sk_buff *, u16 in_port, struct sw_flow_key *);
 
-struct sw_flow_mask *ovs_sw_flow_mask_alloc(void);
-void ovs_sw_flow_mask_add_ref(struct sw_flow_mask *);
-void ovs_sw_flow_mask_del_ref(struct sw_flow_mask *, bool deferred);
-void ovs_sw_flow_mask_insert(struct flow_table *, struct sw_flow_mask *);
-struct sw_flow_mask *ovs_sw_flow_mask_find(const struct flow_table *,
-		const struct sw_flow_mask *);
-void ovs_flow_key_mask(struct sw_flow_key *dst, const struct sw_flow_key *src,
-		       const struct sw_flow_mask *mask);
 #endif /* flow.h */
diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c
new file mode 100644
index 000000000000..e04649c56a96
--- /dev/null
+++ b/net/openvswitch/flow_netlink.c
@@ -0,0 +1,1603 @@
+/*
+ * Copyright (c) 2007-2013 Nicira, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+#include "flow.h"
+#include "datapath.h"
+#include <linux/uaccess.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
+#include <net/llc_pdu.h>
+#include <linux/kernel.h>
+#include <linux/jhash.h>
+#include <linux/jiffies.h>
+#include <linux/llc.h>
+#include <linux/module.h>
+#include <linux/in.h>
+#include <linux/rcupdate.h>
+#include <linux/if_arp.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/sctp.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <linux/icmp.h>
+#include <linux/icmpv6.h>
+#include <linux/rculist.h>
+#include <net/ip.h>
+#include <net/ipv6.h>
+#include <net/ndisc.h>
+
+#include "flow_netlink.h"
+
+static void update_range__(struct sw_flow_match *match,
+			   size_t offset, size_t size, bool is_mask)
+{
+	struct sw_flow_key_range *range = NULL;
+	size_t start = rounddown(offset, sizeof(long));
+	size_t end = roundup(offset + size, sizeof(long));
+
+	if (!is_mask)
+		range = &match->range;
+	else if (match->mask)
+		range = &match->mask->range;
+
+	if (!range)
+		return;
+
+	if (range->start == range->end) {
+		range->start = start;
+		range->end = end;
+		return;
+	}
+
+	if (range->start > start)
+		range->start = start;
+
+	if (range->end < end)
+		range->end = end;
+}
+
+#define SW_FLOW_KEY_PUT(match, field, value, is_mask) \
+	do { \
+		update_range__(match, offsetof(struct sw_flow_key, field),  \
+				     sizeof((match)->key->field), is_mask); \
+		if (is_mask) {						    \
+			if ((match)->mask)				    \
+				(match)->mask->key.field = value;	    \
+		} else {                                                    \
+			(match)->key->field = value;		            \
+		}                                                           \
+	} while (0)
+
+#define SW_FLOW_KEY_MEMCPY(match, field, value_p, len, is_mask) \
+	do { \
+		update_range__(match, offsetof(struct sw_flow_key, field),  \
+				len, is_mask);                              \
+		if (is_mask) {						    \
+			if ((match)->mask)				    \
+				memcpy(&(match)->mask->key.field, value_p, len);\
+		} else {                                                    \
+			memcpy(&(match)->key->field, value_p, len);         \
+		}                                                           \
+	} while (0)
+
+static u16 range_n_bytes(const struct sw_flow_key_range *range)
+{
+	return range->end - range->start;
+}
+
+static bool match_validate(const struct sw_flow_match *match,
+			   u64 key_attrs, u64 mask_attrs)
+{
+	u64 key_expected = 1 << OVS_KEY_ATTR_ETHERNET;
+	u64 mask_allowed = key_attrs;  /* At most allow all key attributes */
+
+	/* The following mask attributes allowed only if they
+	 * pass the validation tests. */
+	mask_allowed &= ~((1 << OVS_KEY_ATTR_IPV4)
+			| (1 << OVS_KEY_ATTR_IPV6)
+			| (1 << OVS_KEY_ATTR_TCP)
+			| (1 << OVS_KEY_ATTR_UDP)
+			| (1 << OVS_KEY_ATTR_SCTP)
+			| (1 << OVS_KEY_ATTR_ICMP)
+			| (1 << OVS_KEY_ATTR_ICMPV6)
+			| (1 << OVS_KEY_ATTR_ARP)
+			| (1 << OVS_KEY_ATTR_ND));
+
+	/* Always allowed mask fields. */
+	mask_allowed |= ((1 << OVS_KEY_ATTR_TUNNEL)
+		       | (1 << OVS_KEY_ATTR_IN_PORT)
+		       | (1 << OVS_KEY_ATTR_ETHERTYPE));
+
+	/* Check key attributes. */
+	if (match->key->eth.type == htons(ETH_P_ARP)
+			|| match->key->eth.type == htons(ETH_P_RARP)) {
+		key_expected |= 1 << OVS_KEY_ATTR_ARP;
+		if (match->mask && (match->mask->key.eth.type == htons(0xffff)))
+			mask_allowed |= 1 << OVS_KEY_ATTR_ARP;
+	}
+
+	if (match->key->eth.type == htons(ETH_P_IP)) {
+		key_expected |= 1 << OVS_KEY_ATTR_IPV4;
+		if (match->mask && (match->mask->key.eth.type == htons(0xffff)))
+			mask_allowed |= 1 << OVS_KEY_ATTR_IPV4;
+
+		if (match->key->ip.frag != OVS_FRAG_TYPE_LATER) {
+			if (match->key->ip.proto == IPPROTO_UDP) {
+				key_expected |= 1 << OVS_KEY_ATTR_UDP;
+				if (match->mask && (match->mask->key.ip.proto == 0xff))
+					mask_allowed |= 1 << OVS_KEY_ATTR_UDP;
+			}
+
+			if (match->key->ip.proto == IPPROTO_SCTP) {
+				key_expected |= 1 << OVS_KEY_ATTR_SCTP;
+				if (match->mask && (match->mask->key.ip.proto == 0xff))
+					mask_allowed |= 1 << OVS_KEY_ATTR_SCTP;
+			}
+
+			if (match->key->ip.proto == IPPROTO_TCP) {
+				key_expected |= 1 << OVS_KEY_ATTR_TCP;
+				if (match->mask && (match->mask->key.ip.proto == 0xff))
+					mask_allowed |= 1 << OVS_KEY_ATTR_TCP;
+			}
+
+			if (match->key->ip.proto == IPPROTO_ICMP) {
+				key_expected |= 1 << OVS_KEY_ATTR_ICMP;
+				if (match->mask && (match->mask->key.ip.proto == 0xff))
+					mask_allowed |= 1 << OVS_KEY_ATTR_ICMP;
+			}
+		}
+	}
+
+	if (match->key->eth.type == htons(ETH_P_IPV6)) {
+		key_expected |= 1 << OVS_KEY_ATTR_IPV6;
+		if (match->mask && (match->mask->key.eth.type == htons(0xffff)))
+			mask_allowed |= 1 << OVS_KEY_ATTR_IPV6;
+
+		if (match->key->ip.frag != OVS_FRAG_TYPE_LATER) {
+			if (match->key->ip.proto == IPPROTO_UDP) {
+				key_expected |= 1 << OVS_KEY_ATTR_UDP;
+				if (match->mask && (match->mask->key.ip.proto == 0xff))
+					mask_allowed |= 1 << OVS_KEY_ATTR_UDP;
+			}
+
+			if (match->key->ip.proto == IPPROTO_SCTP) {
+				key_expected |= 1 << OVS_KEY_ATTR_SCTP;
+				if (match->mask && (match->mask->key.ip.proto == 0xff))
+					mask_allowed |= 1 << OVS_KEY_ATTR_SCTP;
+			}
+
+			if (match->key->ip.proto == IPPROTO_TCP) {
+				key_expected |= 1 << OVS_KEY_ATTR_TCP;
+				if (match->mask && (match->mask->key.ip.proto == 0xff))
+					mask_allowed |= 1 << OVS_KEY_ATTR_TCP;
+			}
+
+			if (match->key->ip.proto == IPPROTO_ICMPV6) {
+				key_expected |= 1 << OVS_KEY_ATTR_ICMPV6;
+				if (match->mask && (match->mask->key.ip.proto == 0xff))
+					mask_allowed |= 1 << OVS_KEY_ATTR_ICMPV6;
+
+				if (match->key->ipv6.tp.src ==
+						htons(NDISC_NEIGHBOUR_SOLICITATION) ||
+				    match->key->ipv6.tp.src == htons(NDISC_NEIGHBOUR_ADVERTISEMENT)) {
+					key_expected |= 1 << OVS_KEY_ATTR_ND;
+					if (match->mask && (match->mask->key.ipv6.tp.src == htons(0xffff)))
+						mask_allowed |= 1 << OVS_KEY_ATTR_ND;
+				}
+			}
+		}
+	}
+
+	if ((key_attrs & key_expected) != key_expected) {
+		/* Key attributes check failed. */
+		OVS_NLERR("Missing expected key attributes (key_attrs=%llx, expected=%llx).\n",
+				key_attrs, key_expected);
+		return false;
+	}
+
+	if ((mask_attrs & mask_allowed) != mask_attrs) {
+		/* Mask attributes check failed. */
+		OVS_NLERR("Contain more than allowed mask fields (mask_attrs=%llx, mask_allowed=%llx).\n",
+				mask_attrs, mask_allowed);
+		return false;
+	}
+
+	return true;
+}
+
+/* The size of the argument for each %OVS_KEY_ATTR_* Netlink attribute.  */
+static const int ovs_key_lens[OVS_KEY_ATTR_MAX + 1] = {
+	[OVS_KEY_ATTR_ENCAP] = -1,
+	[OVS_KEY_ATTR_PRIORITY] = sizeof(u32),
+	[OVS_KEY_ATTR_IN_PORT] = sizeof(u32),
+	[OVS_KEY_ATTR_SKB_MARK] = sizeof(u32),
+	[OVS_KEY_ATTR_ETHERNET] = sizeof(struct ovs_key_ethernet),
+	[OVS_KEY_ATTR_VLAN] = sizeof(__be16),
+	[OVS_KEY_ATTR_ETHERTYPE] = sizeof(__be16),
+	[OVS_KEY_ATTR_IPV4] = sizeof(struct ovs_key_ipv4),
+	[OVS_KEY_ATTR_IPV6] = sizeof(struct ovs_key_ipv6),
+	[OVS_KEY_ATTR_TCP] = sizeof(struct ovs_key_tcp),
+	[OVS_KEY_ATTR_UDP] = sizeof(struct ovs_key_udp),
+	[OVS_KEY_ATTR_SCTP] = sizeof(struct ovs_key_sctp),
+	[OVS_KEY_ATTR_ICMP] = sizeof(struct ovs_key_icmp),
+	[OVS_KEY_ATTR_ICMPV6] = sizeof(struct ovs_key_icmpv6),
+	[OVS_KEY_ATTR_ARP] = sizeof(struct ovs_key_arp),
+	[OVS_KEY_ATTR_ND] = sizeof(struct ovs_key_nd),
+	[OVS_KEY_ATTR_TUNNEL] = -1,
+};
+
+static bool is_all_zero(const u8 *fp, size_t size)
+{
+	int i;
+
+	if (!fp)
+		return false;
+
+	for (i = 0; i < size; i++)
+		if (fp[i])
+			return false;
+
+	return true;
+}
+
+static int __parse_flow_nlattrs(const struct nlattr *attr,
+				const struct nlattr *a[],
+				u64 *attrsp, bool nz)
+{
+	const struct nlattr *nla;
+	u64 attrs;
+	int rem;
+
+	attrs = *attrsp;
+	nla_for_each_nested(nla, attr, rem) {
+		u16 type = nla_type(nla);
+		int expected_len;
+
+		if (type > OVS_KEY_ATTR_MAX) {
+			OVS_NLERR("Unknown key attribute (type=%d, max=%d).\n",
+				  type, OVS_KEY_ATTR_MAX);
+			return -EINVAL;
+		}
+
+		if (attrs & (1 << type)) {
+			OVS_NLERR("Duplicate key attribute (type %d).\n", type);
+			return -EINVAL;
+		}
+
+		expected_len = ovs_key_lens[type];
+		if (nla_len(nla) != expected_len && expected_len != -1) {
+			OVS_NLERR("Key attribute has unexpected length (type=%d"
+				  ", length=%d, expected=%d).\n", type,
+				  nla_len(nla), expected_len);
+			return -EINVAL;
+		}
+
+		if (!nz || !is_all_zero(nla_data(nla), expected_len)) {
+			attrs |= 1 << type;
+			a[type] = nla;
+		}
+	}
+	if (rem) {
+		OVS_NLERR("Message has %d unknown bytes.\n", rem);
+		return -EINVAL;
+	}
+
+	*attrsp = attrs;
+	return 0;
+}
+
+static int parse_flow_mask_nlattrs(const struct nlattr *attr,
+				   const struct nlattr *a[], u64 *attrsp)
+{
+	return __parse_flow_nlattrs(attr, a, attrsp, true);
+}
+
+static int parse_flow_nlattrs(const struct nlattr *attr,
+			      const struct nlattr *a[], u64 *attrsp)
+{
+	return __parse_flow_nlattrs(attr, a, attrsp, false);
+}
+
+static int ipv4_tun_from_nlattr(const struct nlattr *attr,
+				struct sw_flow_match *match, bool is_mask)
+{
+	struct nlattr *a;
+	int rem;
+	bool ttl = false;
+	__be16 tun_flags = 0;
+
+	nla_for_each_nested(a, attr, rem) {
+		int type = nla_type(a);
+		static const u32 ovs_tunnel_key_lens[OVS_TUNNEL_KEY_ATTR_MAX + 1] = {
+			[OVS_TUNNEL_KEY_ATTR_ID] = sizeof(u64),
+			[OVS_TUNNEL_KEY_ATTR_IPV4_SRC] = sizeof(u32),
+			[OVS_TUNNEL_KEY_ATTR_IPV4_DST] = sizeof(u32),
+			[OVS_TUNNEL_KEY_ATTR_TOS] = 1,
+			[OVS_TUNNEL_KEY_ATTR_TTL] = 1,
+			[OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT] = 0,
+			[OVS_TUNNEL_KEY_ATTR_CSUM] = 0,
+		};
+
+		if (type > OVS_TUNNEL_KEY_ATTR_MAX) {
+			OVS_NLERR("Unknown IPv4 tunnel attribute (type=%d, max=%d).\n",
+			type, OVS_TUNNEL_KEY_ATTR_MAX);
+			return -EINVAL;
+		}
+
+		if (ovs_tunnel_key_lens[type] != nla_len(a)) {
+			OVS_NLERR("IPv4 tunnel attribute type has unexpected "
+				  " length (type=%d, length=%d, expected=%d).\n",
+				  type, nla_len(a), ovs_tunnel_key_lens[type]);
+			return -EINVAL;
+		}
+
+		switch (type) {
+		case OVS_TUNNEL_KEY_ATTR_ID:
+			SW_FLOW_KEY_PUT(match, tun_key.tun_id,
+					nla_get_be64(a), is_mask);
+			tun_flags |= TUNNEL_KEY;
+			break;
+		case OVS_TUNNEL_KEY_ATTR_IPV4_SRC:
+			SW_FLOW_KEY_PUT(match, tun_key.ipv4_src,
+					nla_get_be32(a), is_mask);
+			break;
+		case OVS_TUNNEL_KEY_ATTR_IPV4_DST:
+			SW_FLOW_KEY_PUT(match, tun_key.ipv4_dst,
+					nla_get_be32(a), is_mask);
+			break;
+		case OVS_TUNNEL_KEY_ATTR_TOS:
+			SW_FLOW_KEY_PUT(match, tun_key.ipv4_tos,
+					nla_get_u8(a), is_mask);
+			break;
+		case OVS_TUNNEL_KEY_ATTR_TTL:
+			SW_FLOW_KEY_PUT(match, tun_key.ipv4_ttl,
+					nla_get_u8(a), is_mask);
+			ttl = true;
+			break;
+		case OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT:
+			tun_flags |= TUNNEL_DONT_FRAGMENT;
+			break;
+		case OVS_TUNNEL_KEY_ATTR_CSUM:
+			tun_flags |= TUNNEL_CSUM;
+			break;
+		default:
+			return -EINVAL;
+		}
+	}
+
+	SW_FLOW_KEY_PUT(match, tun_key.tun_flags, tun_flags, is_mask);
+
+	if (rem > 0) {
+		OVS_NLERR("IPv4 tunnel attribute has %d unknown bytes.\n", rem);
+		return -EINVAL;
+	}
+
+	if (!is_mask) {
+		if (!match->key->tun_key.ipv4_dst) {
+			OVS_NLERR("IPv4 tunnel destination address is zero.\n");
+			return -EINVAL;
+		}
+
+		if (!ttl) {
+			OVS_NLERR("IPv4 tunnel TTL not specified.\n");
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+static int ipv4_tun_to_nlattr(struct sk_buff *skb,
+			      const struct ovs_key_ipv4_tunnel *tun_key,
+			      const struct ovs_key_ipv4_tunnel *output)
+{
+	struct nlattr *nla;
+
+	nla = nla_nest_start(skb, OVS_KEY_ATTR_TUNNEL);
+	if (!nla)
+		return -EMSGSIZE;
+
+	if (output->tun_flags & TUNNEL_KEY &&
+	    nla_put_be64(skb, OVS_TUNNEL_KEY_ATTR_ID, output->tun_id))
+		return -EMSGSIZE;
+	if (output->ipv4_src &&
+		nla_put_be32(skb, OVS_TUNNEL_KEY_ATTR_IPV4_SRC, output->ipv4_src))
+		return -EMSGSIZE;
+	if (output->ipv4_dst &&
+		nla_put_be32(skb, OVS_TUNNEL_KEY_ATTR_IPV4_DST, output->ipv4_dst))
+		return -EMSGSIZE;
+	if (output->ipv4_tos &&
+		nla_put_u8(skb, OVS_TUNNEL_KEY_ATTR_TOS, output->ipv4_tos))
+		return -EMSGSIZE;
+	if (nla_put_u8(skb, OVS_TUNNEL_KEY_ATTR_TTL, output->ipv4_ttl))
+		return -EMSGSIZE;
+	if ((output->tun_flags & TUNNEL_DONT_FRAGMENT) &&
+		nla_put_flag(skb, OVS_TUNNEL_KEY_ATTR_DONT_FRAGMENT))
+		return -EMSGSIZE;
+	if ((output->tun_flags & TUNNEL_CSUM) &&
+		nla_put_flag(skb, OVS_TUNNEL_KEY_ATTR_CSUM))
+		return -EMSGSIZE;
+
+	nla_nest_end(skb, nla);
+	return 0;
+}
+
+
+static int metadata_from_nlattrs(struct sw_flow_match *match,  u64 *attrs,
+				 const struct nlattr **a, bool is_mask)
+{
+	if (*attrs & (1 << OVS_KEY_ATTR_PRIORITY)) {
+		SW_FLOW_KEY_PUT(match, phy.priority,
+			  nla_get_u32(a[OVS_KEY_ATTR_PRIORITY]), is_mask);
+		*attrs &= ~(1 << OVS_KEY_ATTR_PRIORITY);
+	}
+
+	if (*attrs & (1 << OVS_KEY_ATTR_IN_PORT)) {
+		u32 in_port = nla_get_u32(a[OVS_KEY_ATTR_IN_PORT]);
+
+		if (is_mask)
+			in_port = 0xffffffff; /* Always exact match in_port. */
+		else if (in_port >= DP_MAX_PORTS)
+			return -EINVAL;
+
+		SW_FLOW_KEY_PUT(match, phy.in_port, in_port, is_mask);
+		*attrs &= ~(1 << OVS_KEY_ATTR_IN_PORT);
+	} else if (!is_mask) {
+		SW_FLOW_KEY_PUT(match, phy.in_port, DP_MAX_PORTS, is_mask);
+	}
+
+	if (*attrs & (1 << OVS_KEY_ATTR_SKB_MARK)) {
+		uint32_t mark = nla_get_u32(a[OVS_KEY_ATTR_SKB_MARK]);
+
+		SW_FLOW_KEY_PUT(match, phy.skb_mark, mark, is_mask);
+		*attrs &= ~(1 << OVS_KEY_ATTR_SKB_MARK);
+	}
+	if (*attrs & (1 << OVS_KEY_ATTR_TUNNEL)) {
+		if (ipv4_tun_from_nlattr(a[OVS_KEY_ATTR_TUNNEL], match,
+					 is_mask))
+			return -EINVAL;
+		*attrs &= ~(1 << OVS_KEY_ATTR_TUNNEL);
+	}
+	return 0;
+}
+
+static int ovs_key_from_nlattrs(struct sw_flow_match *match,  u64 attrs,
+				const struct nlattr **a, bool is_mask)
+{
+	int err;
+	u64 orig_attrs = attrs;
+
+	err = metadata_from_nlattrs(match, &attrs, a, is_mask);
+	if (err)
+		return err;
+
+	if (attrs & (1 << OVS_KEY_ATTR_ETHERNET)) {
+		const struct ovs_key_ethernet *eth_key;
+
+		eth_key = nla_data(a[OVS_KEY_ATTR_ETHERNET]);
+		SW_FLOW_KEY_MEMCPY(match, eth.src,
+				eth_key->eth_src, ETH_ALEN, is_mask);
+		SW_FLOW_KEY_MEMCPY(match, eth.dst,
+				eth_key->eth_dst, ETH_ALEN, is_mask);
+		attrs &= ~(1 << OVS_KEY_ATTR_ETHERNET);
+	}
+
+	if (attrs & (1 << OVS_KEY_ATTR_VLAN)) {
+		__be16 tci;
+
+		tci = nla_get_be16(a[OVS_KEY_ATTR_VLAN]);
+		if (!(tci & htons(VLAN_TAG_PRESENT))) {
+			if (is_mask)
+				OVS_NLERR("VLAN TCI mask does not have exact match for VLAN_TAG_PRESENT bit.\n");
+			else
+				OVS_NLERR("VLAN TCI does not have VLAN_TAG_PRESENT bit set.\n");
+
+			return -EINVAL;
+		}
+
+		SW_FLOW_KEY_PUT(match, eth.tci, tci, is_mask);
+		attrs &= ~(1 << OVS_KEY_ATTR_VLAN);
+	} else if (!is_mask)
+		SW_FLOW_KEY_PUT(match, eth.tci, htons(0xffff), true);
+
+	if (attrs & (1 << OVS_KEY_ATTR_ETHERTYPE)) {
+		__be16 eth_type;
+
+		eth_type = nla_get_be16(a[OVS_KEY_ATTR_ETHERTYPE]);
+		if (is_mask) {
+			/* Always exact match EtherType. */
+			eth_type = htons(0xffff);
+		} else if (ntohs(eth_type) < ETH_P_802_3_MIN) {
+			OVS_NLERR("EtherType is less than minimum (type=%x, min=%x).\n",
+					ntohs(eth_type), ETH_P_802_3_MIN);
+			return -EINVAL;
+		}
+
+		SW_FLOW_KEY_PUT(match, eth.type, eth_type, is_mask);
+		attrs &= ~(1 << OVS_KEY_ATTR_ETHERTYPE);
+	} else if (!is_mask) {
+		SW_FLOW_KEY_PUT(match, eth.type, htons(ETH_P_802_2), is_mask);
+	}
+
+	if (attrs & (1 << OVS_KEY_ATTR_IPV4)) {
+		const struct ovs_key_ipv4 *ipv4_key;
+
+		ipv4_key = nla_data(a[OVS_KEY_ATTR_IPV4]);
+		if (!is_mask && ipv4_key->ipv4_frag > OVS_FRAG_TYPE_MAX) {
+			OVS_NLERR("Unknown IPv4 fragment type (value=%d, max=%d).\n",
+				ipv4_key->ipv4_frag, OVS_FRAG_TYPE_MAX);
+			return -EINVAL;
+		}
+		SW_FLOW_KEY_PUT(match, ip.proto,
+				ipv4_key->ipv4_proto, is_mask);
+		SW_FLOW_KEY_PUT(match, ip.tos,
+				ipv4_key->ipv4_tos, is_mask);
+		SW_FLOW_KEY_PUT(match, ip.ttl,
+				ipv4_key->ipv4_ttl, is_mask);
+		SW_FLOW_KEY_PUT(match, ip.frag,
+				ipv4_key->ipv4_frag, is_mask);
+		SW_FLOW_KEY_PUT(match, ipv4.addr.src,
+				ipv4_key->ipv4_src, is_mask);
+		SW_FLOW_KEY_PUT(match, ipv4.addr.dst,
+				ipv4_key->ipv4_dst, is_mask);
+		attrs &= ~(1 << OVS_KEY_ATTR_IPV4);
+	}
+
+	if (attrs & (1 << OVS_KEY_ATTR_IPV6)) {
+		const struct ovs_key_ipv6 *ipv6_key;
+
+		ipv6_key = nla_data(a[OVS_KEY_ATTR_IPV6]);
+		if (!is_mask && ipv6_key->ipv6_frag > OVS_FRAG_TYPE_MAX) {
+			OVS_NLERR("Unknown IPv6 fragment type (value=%d, max=%d).\n",
+				ipv6_key->ipv6_frag, OVS_FRAG_TYPE_MAX);
+			return -EINVAL;
+		}
+		SW_FLOW_KEY_PUT(match, ipv6.label,
+				ipv6_key->ipv6_label, is_mask);
+		SW_FLOW_KEY_PUT(match, ip.proto,
+				ipv6_key->ipv6_proto, is_mask);
+		SW_FLOW_KEY_PUT(match, ip.tos,
+				ipv6_key->ipv6_tclass, is_mask);
+		SW_FLOW_KEY_PUT(match, ip.ttl,
+				ipv6_key->ipv6_hlimit, is_mask);
+		SW_FLOW_KEY_PUT(match, ip.frag,
+				ipv6_key->ipv6_frag, is_mask);
+		SW_FLOW_KEY_MEMCPY(match, ipv6.addr.src,
+				ipv6_key->ipv6_src,
+				sizeof(match->key->ipv6.addr.src),
+				is_mask);
+		SW_FLOW_KEY_MEMCPY(match, ipv6.addr.dst,
+				ipv6_key->ipv6_dst,
+				sizeof(match->key->ipv6.addr.dst),
+				is_mask);
+
+		attrs &= ~(1 << OVS_KEY_ATTR_IPV6);
+	}
+
+	if (attrs & (1 << OVS_KEY_ATTR_ARP)) {
+		const struct ovs_key_arp *arp_key;
+
+		arp_key = nla_data(a[OVS_KEY_ATTR_ARP]);
+		if (!is_mask && (arp_key->arp_op & htons(0xff00))) {
+			OVS_NLERR("Unknown ARP opcode (opcode=%d).\n",
+				  arp_key->arp_op);
+			return -EINVAL;
+		}
+
+		SW_FLOW_KEY_PUT(match, ipv4.addr.src,
+				arp_key->arp_sip, is_mask);
+		SW_FLOW_KEY_PUT(match, ipv4.addr.dst,
+			arp_key->arp_tip, is_mask);
+		SW_FLOW_KEY_PUT(match, ip.proto,
+				ntohs(arp_key->arp_op), is_mask);
+		SW_FLOW_KEY_MEMCPY(match, ipv4.arp.sha,
+				arp_key->arp_sha, ETH_ALEN, is_mask);
+		SW_FLOW_KEY_MEMCPY(match, ipv4.arp.tha,
+				arp_key->arp_tha, ETH_ALEN, is_mask);
+
+		attrs &= ~(1 << OVS_KEY_ATTR_ARP);
+	}
+
+	if (attrs & (1 << OVS_KEY_ATTR_TCP)) {
+		const struct ovs_key_tcp *tcp_key;
+
+		tcp_key = nla_data(a[OVS_KEY_ATTR_TCP]);
+		if (orig_attrs & (1 << OVS_KEY_ATTR_IPV4)) {
+			SW_FLOW_KEY_PUT(match, ipv4.tp.src,
+					tcp_key->tcp_src, is_mask);
+			SW_FLOW_KEY_PUT(match, ipv4.tp.dst,
+					tcp_key->tcp_dst, is_mask);
+		} else {
+			SW_FLOW_KEY_PUT(match, ipv6.tp.src,
+					tcp_key->tcp_src, is_mask);
+			SW_FLOW_KEY_PUT(match, ipv6.tp.dst,
+					tcp_key->tcp_dst, is_mask);
+		}
+		attrs &= ~(1 << OVS_KEY_ATTR_TCP);
+	}
+
+	if (attrs & (1 << OVS_KEY_ATTR_UDP)) {
+		const struct ovs_key_udp *udp_key;
+
+		udp_key = nla_data(a[OVS_KEY_ATTR_UDP]);
+		if (orig_attrs & (1 << OVS_KEY_ATTR_IPV4)) {
+			SW_FLOW_KEY_PUT(match, ipv4.tp.src,
+					udp_key->udp_src, is_mask);
+			SW_FLOW_KEY_PUT(match, ipv4.tp.dst,
+					udp_key->udp_dst, is_mask);
+		} else {
+			SW_FLOW_KEY_PUT(match, ipv6.tp.src,
+					udp_key->udp_src, is_mask);
+			SW_FLOW_KEY_PUT(match, ipv6.tp.dst,
+					udp_key->udp_dst, is_mask);
+		}
+		attrs &= ~(1 << OVS_KEY_ATTR_UDP);
+	}
+
+	if (attrs & (1 << OVS_KEY_ATTR_SCTP)) {
+		const struct ovs_key_sctp *sctp_key;
+
+		sctp_key = nla_data(a[OVS_KEY_ATTR_SCTP]);
+		if (orig_attrs & (1 << OVS_KEY_ATTR_IPV4)) {
+			SW_FLOW_KEY_PUT(match, ipv4.tp.src,
+					sctp_key->sctp_src, is_mask);
+			SW_FLOW_KEY_PUT(match, ipv4.tp.dst,
+					sctp_key->sctp_dst, is_mask);
+		} else {
+			SW_FLOW_KEY_PUT(match, ipv6.tp.src,
+					sctp_key->sctp_src, is_mask);
+			SW_FLOW_KEY_PUT(match, ipv6.tp.dst,
+					sctp_key->sctp_dst, is_mask);
+		}
+		attrs &= ~(1 << OVS_KEY_ATTR_SCTP);
+	}
+
+	if (attrs & (1 << OVS_KEY_ATTR_ICMP)) {
+		const struct ovs_key_icmp *icmp_key;
+
+		icmp_key = nla_data(a[OVS_KEY_ATTR_ICMP]);
+		SW_FLOW_KEY_PUT(match, ipv4.tp.src,
+				htons(icmp_key->icmp_type), is_mask);
+		SW_FLOW_KEY_PUT(match, ipv4.tp.dst,
+				htons(icmp_key->icmp_code), is_mask);
+		attrs &= ~(1 << OVS_KEY_ATTR_ICMP);
+	}
+
+	if (attrs & (1 << OVS_KEY_ATTR_ICMPV6)) {
+		const struct ovs_key_icmpv6 *icmpv6_key;
+
+		icmpv6_key = nla_data(a[OVS_KEY_ATTR_ICMPV6]);
+		SW_FLOW_KEY_PUT(match, ipv6.tp.src,
+				htons(icmpv6_key->icmpv6_type), is_mask);
+		SW_FLOW_KEY_PUT(match, ipv6.tp.dst,
+				htons(icmpv6_key->icmpv6_code), is_mask);
+		attrs &= ~(1 << OVS_KEY_ATTR_ICMPV6);
+	}
+
+	if (attrs & (1 << OVS_KEY_ATTR_ND)) {
+		const struct ovs_key_nd *nd_key;
+
+		nd_key = nla_data(a[OVS_KEY_ATTR_ND]);
+		SW_FLOW_KEY_MEMCPY(match, ipv6.nd.target,
+			nd_key->nd_target,
+			sizeof(match->key->ipv6.nd.target),
+			is_mask);
+		SW_FLOW_KEY_MEMCPY(match, ipv6.nd.sll,
+			nd_key->nd_sll, ETH_ALEN, is_mask);
+		SW_FLOW_KEY_MEMCPY(match, ipv6.nd.tll,
+				nd_key->nd_tll, ETH_ALEN, is_mask);
+		attrs &= ~(1 << OVS_KEY_ATTR_ND);
+	}
+
+	if (attrs != 0)
+		return -EINVAL;
+
+	return 0;
+}
+
+static void sw_flow_mask_set(struct sw_flow_mask *mask,
+			     struct sw_flow_key_range *range, u8 val)
+{
+	u8 *m = (u8 *)&mask->key + range->start;
+
+	mask->range = *range;
+	memset(m, val, range_n_bytes(range));
+}
+
+/**
+ * ovs_nla_get_match - parses Netlink attributes into a flow key and
+ * mask. In case the 'mask' is NULL, the flow is treated as exact match
+ * flow. Otherwise, it is treated as a wildcarded flow, except the mask
+ * does not include any don't care bit.
+ * @match: receives the extracted flow match information.
+ * @key: Netlink attribute holding nested %OVS_KEY_ATTR_* Netlink attribute
+ * sequence. The fields should of the packet that triggered the creation
+ * of this flow.
+ * @mask: Optional. Netlink attribute holding nested %OVS_KEY_ATTR_* Netlink
+ * attribute specifies the mask field of the wildcarded flow.
+ */
+int ovs_nla_get_match(struct sw_flow_match *match,
+		      const struct nlattr *key,
+		      const struct nlattr *mask)
+{
+	const struct nlattr *a[OVS_KEY_ATTR_MAX + 1];
+	const struct nlattr *encap;
+	u64 key_attrs = 0;
+	u64 mask_attrs = 0;
+	bool encap_valid = false;
+	int err;
+
+	err = parse_flow_nlattrs(key, a, &key_attrs);
+	if (err)
+		return err;
+
+	if ((key_attrs & (1 << OVS_KEY_ATTR_ETHERNET)) &&
+	    (key_attrs & (1 << OVS_KEY_ATTR_ETHERTYPE)) &&
+	    (nla_get_be16(a[OVS_KEY_ATTR_ETHERTYPE]) == htons(ETH_P_8021Q))) {
+		__be16 tci;
+
+		if (!((key_attrs & (1 << OVS_KEY_ATTR_VLAN)) &&
+		      (key_attrs & (1 << OVS_KEY_ATTR_ENCAP)))) {
+			OVS_NLERR("Invalid Vlan frame.\n");
+			return -EINVAL;
+		}
+
+		key_attrs &= ~(1 << OVS_KEY_ATTR_ETHERTYPE);
+		tci = nla_get_be16(a[OVS_KEY_ATTR_VLAN]);
+		encap = a[OVS_KEY_ATTR_ENCAP];
+		key_attrs &= ~(1 << OVS_KEY_ATTR_ENCAP);
+		encap_valid = true;
+
+		if (tci & htons(VLAN_TAG_PRESENT)) {
+			err = parse_flow_nlattrs(encap, a, &key_attrs);
+			if (err)
+				return err;
+		} else if (!tci) {
+			/* Corner case for truncated 802.1Q header. */
+			if (nla_len(encap)) {
+				OVS_NLERR("Truncated 802.1Q header has non-zero encap attribute.\n");
+				return -EINVAL;
+			}
+		} else {
+			OVS_NLERR("Encap attribute is set for a non-VLAN frame.\n");
+			return  -EINVAL;
+		}
+	}
+
+	err = ovs_key_from_nlattrs(match, key_attrs, a, false);
+	if (err)
+		return err;
+
+	if (mask) {
+		err = parse_flow_mask_nlattrs(mask, a, &mask_attrs);
+		if (err)
+			return err;
+
+		if (mask_attrs & 1 << OVS_KEY_ATTR_ENCAP)  {
+			__be16 eth_type = 0;
+			__be16 tci = 0;
+
+			if (!encap_valid) {
+				OVS_NLERR("Encap mask attribute is set for non-VLAN frame.\n");
+				return  -EINVAL;
+			}
+
+			mask_attrs &= ~(1 << OVS_KEY_ATTR_ENCAP);
+			if (a[OVS_KEY_ATTR_ETHERTYPE])
+				eth_type = nla_get_be16(a[OVS_KEY_ATTR_ETHERTYPE]);
+
+			if (eth_type == htons(0xffff)) {
+				mask_attrs &= ~(1 << OVS_KEY_ATTR_ETHERTYPE);
+				encap = a[OVS_KEY_ATTR_ENCAP];
+				err = parse_flow_mask_nlattrs(encap, a, &mask_attrs);
+			} else {
+				OVS_NLERR("VLAN frames must have an exact match on the TPID (mask=%x).\n",
+						ntohs(eth_type));
+				return -EINVAL;
+			}
+
+			if (a[OVS_KEY_ATTR_VLAN])
+				tci = nla_get_be16(a[OVS_KEY_ATTR_VLAN]);
+
+			if (!(tci & htons(VLAN_TAG_PRESENT))) {
+				OVS_NLERR("VLAN tag present bit must have an exact match (tci_mask=%x).\n", ntohs(tci));
+				return -EINVAL;
+			}
+		}
+
+		err = ovs_key_from_nlattrs(match, mask_attrs, a, true);
+		if (err)
+			return err;
+	} else {
+		/* Populate exact match flow's key mask. */
+		if (match->mask)
+			sw_flow_mask_set(match->mask, &match->range, 0xff);
+	}
+
+	if (!match_validate(match, key_attrs, mask_attrs))
+		return -EINVAL;
+
+	return 0;
+}
+
+/**
+ * ovs_nla_get_flow_metadata - parses Netlink attributes into a flow key.
+ * @flow: Receives extracted in_port, priority, tun_key and skb_mark.
+ * @attr: Netlink attribute holding nested %OVS_KEY_ATTR_* Netlink attribute
+ * sequence.
+ *
+ * This parses a series of Netlink attributes that form a flow key, which must
+ * take the same form accepted by flow_from_nlattrs(), but only enough of it to
+ * get the metadata, that is, the parts of the flow key that cannot be
+ * extracted from the packet itself.
+ */
+
+int ovs_nla_get_flow_metadata(struct sw_flow *flow,
+			      const struct nlattr *attr)
+{
+	struct ovs_key_ipv4_tunnel *tun_key = &flow->key.tun_key;
+	const struct nlattr *a[OVS_KEY_ATTR_MAX + 1];
+	u64 attrs = 0;
+	int err;
+	struct sw_flow_match match;
+
+	flow->key.phy.in_port = DP_MAX_PORTS;
+	flow->key.phy.priority = 0;
+	flow->key.phy.skb_mark = 0;
+	memset(tun_key, 0, sizeof(flow->key.tun_key));
+
+	err = parse_flow_nlattrs(attr, a, &attrs);
+	if (err)
+		return -EINVAL;
+
+	memset(&match, 0, sizeof(match));
+	match.key = &flow->key;
+
+	err = metadata_from_nlattrs(&match, &attrs, a, false);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+int ovs_nla_put_flow(const struct sw_flow_key *swkey,
+		     const struct sw_flow_key *output, struct sk_buff *skb)
+{
+	struct ovs_key_ethernet *eth_key;
+	struct nlattr *nla, *encap;
+	bool is_mask = (swkey != output);
+
+	if (nla_put_u32(skb, OVS_KEY_ATTR_PRIORITY, output->phy.priority))
+		goto nla_put_failure;
+
+	if ((swkey->tun_key.ipv4_dst || is_mask) &&
+	    ipv4_tun_to_nlattr(skb, &swkey->tun_key, &output->tun_key))
+		goto nla_put_failure;
+
+	if (swkey->phy.in_port == DP_MAX_PORTS) {
+		if (is_mask && (output->phy.in_port == 0xffff))
+			if (nla_put_u32(skb, OVS_KEY_ATTR_IN_PORT, 0xffffffff))
+				goto nla_put_failure;
+	} else {
+		u16 upper_u16;
+		upper_u16 = !is_mask ? 0 : 0xffff;
+
+		if (nla_put_u32(skb, OVS_KEY_ATTR_IN_PORT,
+				(upper_u16 << 16) | output->phy.in_port))
+			goto nla_put_failure;
+	}
+
+	if (nla_put_u32(skb, OVS_KEY_ATTR_SKB_MARK, output->phy.skb_mark))
+		goto nla_put_failure;
+
+	nla = nla_reserve(skb, OVS_KEY_ATTR_ETHERNET, sizeof(*eth_key));
+	if (!nla)
+		goto nla_put_failure;
+
+	eth_key = nla_data(nla);
+	memcpy(eth_key->eth_src, output->eth.src, ETH_ALEN);
+	memcpy(eth_key->eth_dst, output->eth.dst, ETH_ALEN);
+
+	if (swkey->eth.tci || swkey->eth.type == htons(ETH_P_8021Q)) {
+		__be16 eth_type;
+		eth_type = !is_mask ? htons(ETH_P_8021Q) : htons(0xffff);
+		if (nla_put_be16(skb, OVS_KEY_ATTR_ETHERTYPE, eth_type) ||
+		    nla_put_be16(skb, OVS_KEY_ATTR_VLAN, output->eth.tci))
+			goto nla_put_failure;
+		encap = nla_nest_start(skb, OVS_KEY_ATTR_ENCAP);
+		if (!swkey->eth.tci)
+			goto unencap;
+	} else
+		encap = NULL;
+
+	if (swkey->eth.type == htons(ETH_P_802_2)) {
+		/*
+		 * Ethertype 802.2 is represented in the netlink with omitted
+		 * OVS_KEY_ATTR_ETHERTYPE in the flow key attribute, and
+		 * 0xffff in the mask attribute.  Ethertype can also
+		 * be wildcarded.
+		 */
+		if (is_mask && output->eth.type)
+			if (nla_put_be16(skb, OVS_KEY_ATTR_ETHERTYPE,
+						output->eth.type))
+				goto nla_put_failure;
+		goto unencap;
+	}
+
+	if (nla_put_be16(skb, OVS_KEY_ATTR_ETHERTYPE, output->eth.type))
+		goto nla_put_failure;
+
+	if (swkey->eth.type == htons(ETH_P_IP)) {
+		struct ovs_key_ipv4 *ipv4_key;
+
+		nla = nla_reserve(skb, OVS_KEY_ATTR_IPV4, sizeof(*ipv4_key));
+		if (!nla)
+			goto nla_put_failure;
+		ipv4_key = nla_data(nla);
+		ipv4_key->ipv4_src = output->ipv4.addr.src;
+		ipv4_key->ipv4_dst = output->ipv4.addr.dst;
+		ipv4_key->ipv4_proto = output->ip.proto;
+		ipv4_key->ipv4_tos = output->ip.tos;
+		ipv4_key->ipv4_ttl = output->ip.ttl;
+		ipv4_key->ipv4_frag = output->ip.frag;
+	} else if (swkey->eth.type == htons(ETH_P_IPV6)) {
+		struct ovs_key_ipv6 *ipv6_key;
+
+		nla = nla_reserve(skb, OVS_KEY_ATTR_IPV6, sizeof(*ipv6_key));
+		if (!nla)
+			goto nla_put_failure;
+		ipv6_key = nla_data(nla);
+		memcpy(ipv6_key->ipv6_src, &output->ipv6.addr.src,
+				sizeof(ipv6_key->ipv6_src));
+		memcpy(ipv6_key->ipv6_dst, &output->ipv6.addr.dst,
+				sizeof(ipv6_key->ipv6_dst));
+		ipv6_key->ipv6_label = output->ipv6.label;
+		ipv6_key->ipv6_proto = output->ip.proto;
+		ipv6_key->ipv6_tclass = output->ip.tos;
+		ipv6_key->ipv6_hlimit = output->ip.ttl;
+		ipv6_key->ipv6_frag = output->ip.frag;
+	} else if (swkey->eth.type == htons(ETH_P_ARP) ||
+		   swkey->eth.type == htons(ETH_P_RARP)) {
+		struct ovs_key_arp *arp_key;
+
+		nla = nla_reserve(skb, OVS_KEY_ATTR_ARP, sizeof(*arp_key));
+		if (!nla)
+			goto nla_put_failure;
+		arp_key = nla_data(nla);
+		memset(arp_key, 0, sizeof(struct ovs_key_arp));
+		arp_key->arp_sip = output->ipv4.addr.src;
+		arp_key->arp_tip = output->ipv4.addr.dst;
+		arp_key->arp_op = htons(output->ip.proto);
+		memcpy(arp_key->arp_sha, output->ipv4.arp.sha, ETH_ALEN);
+		memcpy(arp_key->arp_tha, output->ipv4.arp.tha, ETH_ALEN);
+	}
+
+	if ((swkey->eth.type == htons(ETH_P_IP) ||
+	     swkey->eth.type == htons(ETH_P_IPV6)) &&
+	     swkey->ip.frag != OVS_FRAG_TYPE_LATER) {
+
+		if (swkey->ip.proto == IPPROTO_TCP) {
+			struct ovs_key_tcp *tcp_key;
+
+			nla = nla_reserve(skb, OVS_KEY_ATTR_TCP, sizeof(*tcp_key));
+			if (!nla)
+				goto nla_put_failure;
+			tcp_key = nla_data(nla);
+			if (swkey->eth.type == htons(ETH_P_IP)) {
+				tcp_key->tcp_src = output->ipv4.tp.src;
+				tcp_key->tcp_dst = output->ipv4.tp.dst;
+			} else if (swkey->eth.type == htons(ETH_P_IPV6)) {
+				tcp_key->tcp_src = output->ipv6.tp.src;
+				tcp_key->tcp_dst = output->ipv6.tp.dst;
+			}
+		} else if (swkey->ip.proto == IPPROTO_UDP) {
+			struct ovs_key_udp *udp_key;
+
+			nla = nla_reserve(skb, OVS_KEY_ATTR_UDP, sizeof(*udp_key));
+			if (!nla)
+				goto nla_put_failure;
+			udp_key = nla_data(nla);
+			if (swkey->eth.type == htons(ETH_P_IP)) {
+				udp_key->udp_src = output->ipv4.tp.src;
+				udp_key->udp_dst = output->ipv4.tp.dst;
+			} else if (swkey->eth.type == htons(ETH_P_IPV6)) {
+				udp_key->udp_src = output->ipv6.tp.src;
+				udp_key->udp_dst = output->ipv6.tp.dst;
+			}
+		} else if (swkey->ip.proto == IPPROTO_SCTP) {
+			struct ovs_key_sctp *sctp_key;
+
+			nla = nla_reserve(skb, OVS_KEY_ATTR_SCTP, sizeof(*sctp_key));
+			if (!nla)
+				goto nla_put_failure;
+			sctp_key = nla_data(nla);
+			if (swkey->eth.type == htons(ETH_P_IP)) {
+				sctp_key->sctp_src = swkey->ipv4.tp.src;
+				sctp_key->sctp_dst = swkey->ipv4.tp.dst;
+			} else if (swkey->eth.type == htons(ETH_P_IPV6)) {
+				sctp_key->sctp_src = swkey->ipv6.tp.src;
+				sctp_key->sctp_dst = swkey->ipv6.tp.dst;
+			}
+		} else if (swkey->eth.type == htons(ETH_P_IP) &&
+			   swkey->ip.proto == IPPROTO_ICMP) {
+			struct ovs_key_icmp *icmp_key;
+
+			nla = nla_reserve(skb, OVS_KEY_ATTR_ICMP, sizeof(*icmp_key));
+			if (!nla)
+				goto nla_put_failure;
+			icmp_key = nla_data(nla);
+			icmp_key->icmp_type = ntohs(output->ipv4.tp.src);
+			icmp_key->icmp_code = ntohs(output->ipv4.tp.dst);
+		} else if (swkey->eth.type == htons(ETH_P_IPV6) &&
+			   swkey->ip.proto == IPPROTO_ICMPV6) {
+			struct ovs_key_icmpv6 *icmpv6_key;
+
+			nla = nla_reserve(skb, OVS_KEY_ATTR_ICMPV6,
+						sizeof(*icmpv6_key));
+			if (!nla)
+				goto nla_put_failure;
+			icmpv6_key = nla_data(nla);
+			icmpv6_key->icmpv6_type = ntohs(output->ipv6.tp.src);
+			icmpv6_key->icmpv6_code = ntohs(output->ipv6.tp.dst);
+
+			if (icmpv6_key->icmpv6_type == NDISC_NEIGHBOUR_SOLICITATION ||
+			    icmpv6_key->icmpv6_type == NDISC_NEIGHBOUR_ADVERTISEMENT) {
+				struct ovs_key_nd *nd_key;
+
+				nla = nla_reserve(skb, OVS_KEY_ATTR_ND, sizeof(*nd_key));
+				if (!nla)
+					goto nla_put_failure;
+				nd_key = nla_data(nla);
+				memcpy(nd_key->nd_target, &output->ipv6.nd.target,
+							sizeof(nd_key->nd_target));
+				memcpy(nd_key->nd_sll, output->ipv6.nd.sll, ETH_ALEN);
+				memcpy(nd_key->nd_tll, output->ipv6.nd.tll, ETH_ALEN);
+			}
+		}
+	}
+
+unencap:
+	if (encap)
+		nla_nest_end(skb, encap);
+
+	return 0;
+
+nla_put_failure:
+	return -EMSGSIZE;
+}
+
+#define MAX_ACTIONS_BUFSIZE	(32 * 1024)
+
+struct sw_flow_actions *ovs_nla_alloc_flow_actions(int size)
+{
+	struct sw_flow_actions *sfa;
+
+	if (size > MAX_ACTIONS_BUFSIZE)
+		return ERR_PTR(-EINVAL);
+
+	sfa = kmalloc(sizeof(*sfa) + size, GFP_KERNEL);
+	if (!sfa)
+		return ERR_PTR(-ENOMEM);
+
+	sfa->actions_len = 0;
+	return sfa;
+}
+
+/* RCU callback used by ovs_nla_free_flow_actions. */
+static void rcu_free_acts_callback(struct rcu_head *rcu)
+{
+	struct sw_flow_actions *sf_acts = container_of(rcu,
+			struct sw_flow_actions, rcu);
+	kfree(sf_acts);
+}
+
+/* Schedules 'sf_acts' to be freed after the next RCU grace period.
+ * The caller must hold rcu_read_lock for this to be sensible. */
+void ovs_nla_free_flow_actions(struct sw_flow_actions *sf_acts)
+{
+	call_rcu(&sf_acts->rcu, rcu_free_acts_callback);
+}
+
+static struct nlattr *reserve_sfa_size(struct sw_flow_actions **sfa,
+				       int attr_len)
+{
+
+	struct sw_flow_actions *acts;
+	int new_acts_size;
+	int req_size = NLA_ALIGN(attr_len);
+	int next_offset = offsetof(struct sw_flow_actions, actions) +
+					(*sfa)->actions_len;
+
+	if (req_size <= (ksize(*sfa) - next_offset))
+		goto out;
+
+	new_acts_size = ksize(*sfa) * 2;
+
+	if (new_acts_size > MAX_ACTIONS_BUFSIZE) {
+		if ((MAX_ACTIONS_BUFSIZE - next_offset) < req_size)
+			return ERR_PTR(-EMSGSIZE);
+		new_acts_size = MAX_ACTIONS_BUFSIZE;
+	}
+
+	acts = ovs_nla_alloc_flow_actions(new_acts_size);
+	if (IS_ERR(acts))
+		return (void *)acts;
+
+	memcpy(acts->actions, (*sfa)->actions, (*sfa)->actions_len);
+	acts->actions_len = (*sfa)->actions_len;
+	kfree(*sfa);
+	*sfa = acts;
+
+out:
+	(*sfa)->actions_len += req_size;
+	return  (struct nlattr *) ((unsigned char *)(*sfa) + next_offset);
+}
+
+static int add_action(struct sw_flow_actions **sfa, int attrtype, void *data, int len)
+{
+	struct nlattr *a;
+
+	a = reserve_sfa_size(sfa, nla_attr_size(len));
+	if (IS_ERR(a))
+		return PTR_ERR(a);
+
+	a->nla_type = attrtype;
+	a->nla_len = nla_attr_size(len);
+
+	if (data)
+		memcpy(nla_data(a), data, len);
+	memset((unsigned char *) a + a->nla_len, 0, nla_padlen(len));
+
+	return 0;
+}
+
+static inline int add_nested_action_start(struct sw_flow_actions **sfa,
+					  int attrtype)
+{
+	int used = (*sfa)->actions_len;
+	int err;
+
+	err = add_action(sfa, attrtype, NULL, 0);
+	if (err)
+		return err;
+
+	return used;
+}
+
+static inline void add_nested_action_end(struct sw_flow_actions *sfa,
+					 int st_offset)
+{
+	struct nlattr *a = (struct nlattr *) ((unsigned char *)sfa->actions +
+							       st_offset);
+
+	a->nla_len = sfa->actions_len - st_offset;
+}
+
+static int validate_and_copy_sample(const struct nlattr *attr,
+				    const struct sw_flow_key *key, int depth,
+				    struct sw_flow_actions **sfa)
+{
+	const struct nlattr *attrs[OVS_SAMPLE_ATTR_MAX + 1];
+	const struct nlattr *probability, *actions;
+	const struct nlattr *a;
+	int rem, start, err, st_acts;
+
+	memset(attrs, 0, sizeof(attrs));
+	nla_for_each_nested(a, attr, rem) {
+		int type = nla_type(a);
+		if (!type || type > OVS_SAMPLE_ATTR_MAX || attrs[type])
+			return -EINVAL;
+		attrs[type] = a;
+	}
+	if (rem)
+		return -EINVAL;
+
+	probability = attrs[OVS_SAMPLE_ATTR_PROBABILITY];
+	if (!probability || nla_len(probability) != sizeof(u32))
+		return -EINVAL;
+
+	actions = attrs[OVS_SAMPLE_ATTR_ACTIONS];
+	if (!actions || (nla_len(actions) && nla_len(actions) < NLA_HDRLEN))
+		return -EINVAL;
+
+	/* validation done, copy sample action. */
+	start = add_nested_action_start(sfa, OVS_ACTION_ATTR_SAMPLE);
+	if (start < 0)
+		return start;
+	err = add_action(sfa, OVS_SAMPLE_ATTR_PROBABILITY,
+			 nla_data(probability), sizeof(u32));
+	if (err)
+		return err;
+	st_acts = add_nested_action_start(sfa, OVS_SAMPLE_ATTR_ACTIONS);
+	if (st_acts < 0)
+		return st_acts;
+
+	err = ovs_nla_copy_actions(actions, key, depth + 1, sfa);
+	if (err)
+		return err;
+
+	add_nested_action_end(*sfa, st_acts);
+	add_nested_action_end(*sfa, start);
+
+	return 0;
+}
+
+static int validate_tp_port(const struct sw_flow_key *flow_key)
+{
+	if (flow_key->eth.type == htons(ETH_P_IP)) {
+		if (flow_key->ipv4.tp.src || flow_key->ipv4.tp.dst)
+			return 0;
+	} else if (flow_key->eth.type == htons(ETH_P_IPV6)) {
+		if (flow_key->ipv6.tp.src || flow_key->ipv6.tp.dst)
+			return 0;
+	}
+
+	return -EINVAL;
+}
+
+void ovs_match_init(struct sw_flow_match *match,
+		    struct sw_flow_key *key,
+		    struct sw_flow_mask *mask)
+{
+	memset(match, 0, sizeof(*match));
+	match->key = key;
+	match->mask = mask;
+
+	memset(key, 0, sizeof(*key));
+
+	if (mask) {
+		memset(&mask->key, 0, sizeof(mask->key));
+		mask->range.start = mask->range.end = 0;
+	}
+}
+
+static int validate_and_copy_set_tun(const struct nlattr *attr,
+				     struct sw_flow_actions **sfa)
+{
+	struct sw_flow_match match;
+	struct sw_flow_key key;
+	int err, start;
+
+	ovs_match_init(&match, &key, NULL);
+	err = ipv4_tun_from_nlattr(nla_data(attr), &match, false);
+	if (err)
+		return err;
+
+	start = add_nested_action_start(sfa, OVS_ACTION_ATTR_SET);
+	if (start < 0)
+		return start;
+
+	err = add_action(sfa, OVS_KEY_ATTR_IPV4_TUNNEL, &match.key->tun_key,
+			sizeof(match.key->tun_key));
+	add_nested_action_end(*sfa, start);
+
+	return err;
+}
+
+static int validate_set(const struct nlattr *a,
+			const struct sw_flow_key *flow_key,
+			struct sw_flow_actions **sfa,
+			bool *set_tun)
+{
+	const struct nlattr *ovs_key = nla_data(a);
+	int key_type = nla_type(ovs_key);
+
+	/* There can be only one key in a action */
+	if (nla_total_size(nla_len(ovs_key)) != nla_len(a))
+		return -EINVAL;
+
+	if (key_type > OVS_KEY_ATTR_MAX ||
+	    (ovs_key_lens[key_type] != nla_len(ovs_key) &&
+	     ovs_key_lens[key_type] != -1))
+		return -EINVAL;
+
+	switch (key_type) {
+	const struct ovs_key_ipv4 *ipv4_key;
+	const struct ovs_key_ipv6 *ipv6_key;
+	int err;
+
+	case OVS_KEY_ATTR_PRIORITY:
+	case OVS_KEY_ATTR_SKB_MARK:
+	case OVS_KEY_ATTR_ETHERNET:
+		break;
+
+	case OVS_KEY_ATTR_TUNNEL:
+		*set_tun = true;
+		err = validate_and_copy_set_tun(a, sfa);
+		if (err)
+			return err;
+		break;
+
+	case OVS_KEY_ATTR_IPV4:
+		if (flow_key->eth.type != htons(ETH_P_IP))
+			return -EINVAL;
+
+		if (!flow_key->ip.proto)
+			return -EINVAL;
+
+		ipv4_key = nla_data(ovs_key);
+		if (ipv4_key->ipv4_proto != flow_key->ip.proto)
+			return -EINVAL;
+
+		if (ipv4_key->ipv4_frag != flow_key->ip.frag)
+			return -EINVAL;
+
+		break;
+
+	case OVS_KEY_ATTR_IPV6:
+		if (flow_key->eth.type != htons(ETH_P_IPV6))
+			return -EINVAL;
+
+		if (!flow_key->ip.proto)
+			return -EINVAL;
+
+		ipv6_key = nla_data(ovs_key);
+		if (ipv6_key->ipv6_proto != flow_key->ip.proto)
+			return -EINVAL;
+
+		if (ipv6_key->ipv6_frag != flow_key->ip.frag)
+			return -EINVAL;
+
+		if (ntohl(ipv6_key->ipv6_label) & 0xFFF00000)
+			return -EINVAL;
+
+		break;
+
+	case OVS_KEY_ATTR_TCP:
+		if (flow_key->ip.proto != IPPROTO_TCP)
+			return -EINVAL;
+
+		return validate_tp_port(flow_key);
+
+	case OVS_KEY_ATTR_UDP:
+		if (flow_key->ip.proto != IPPROTO_UDP)
+			return -EINVAL;
+
+		return validate_tp_port(flow_key);
+
+	case OVS_KEY_ATTR_SCTP:
+		if (flow_key->ip.proto != IPPROTO_SCTP)
+			return -EINVAL;
+
+		return validate_tp_port(flow_key);
+
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int validate_userspace(const struct nlattr *attr)
+{
+	static const struct nla_policy userspace_policy[OVS_USERSPACE_ATTR_MAX + 1] = {
+		[OVS_USERSPACE_ATTR_PID] = {.type = NLA_U32 },
+		[OVS_USERSPACE_ATTR_USERDATA] = {.type = NLA_UNSPEC },
+	};
+	struct nlattr *a[OVS_USERSPACE_ATTR_MAX + 1];
+	int error;
+
+	error = nla_parse_nested(a, OVS_USERSPACE_ATTR_MAX,
+				 attr, userspace_policy);
+	if (error)
+		return error;
+
+	if (!a[OVS_USERSPACE_ATTR_PID] ||
+	    !nla_get_u32(a[OVS_USERSPACE_ATTR_PID]))
+		return -EINVAL;
+
+	return 0;
+}
+
+static int copy_action(const struct nlattr *from,
+		       struct sw_flow_actions **sfa)
+{
+	int totlen = NLA_ALIGN(from->nla_len);
+	struct nlattr *to;
+
+	to = reserve_sfa_size(sfa, from->nla_len);
+	if (IS_ERR(to))
+		return PTR_ERR(to);
+
+	memcpy(to, from, totlen);
+	return 0;
+}
+
+int ovs_nla_copy_actions(const struct nlattr *attr,
+			 const struct sw_flow_key *key,
+			 int depth,
+			 struct sw_flow_actions **sfa)
+{
+	const struct nlattr *a;
+	int rem, err;
+
+	if (depth >= SAMPLE_ACTION_DEPTH)
+		return -EOVERFLOW;
+
+	nla_for_each_nested(a, attr, rem) {
+		/* Expected argument lengths, (u32)-1 for variable length. */
+		static const u32 action_lens[OVS_ACTION_ATTR_MAX + 1] = {
+			[OVS_ACTION_ATTR_OUTPUT] = sizeof(u32),
+			[OVS_ACTION_ATTR_USERSPACE] = (u32)-1,
+			[OVS_ACTION_ATTR_PUSH_VLAN] = sizeof(struct ovs_action_push_vlan),
+			[OVS_ACTION_ATTR_POP_VLAN] = 0,
+			[OVS_ACTION_ATTR_SET] = (u32)-1,
+			[OVS_ACTION_ATTR_SAMPLE] = (u32)-1
+		};
+		const struct ovs_action_push_vlan *vlan;
+		int type = nla_type(a);
+		bool skip_copy;
+
+		if (type > OVS_ACTION_ATTR_MAX ||
+		    (action_lens[type] != nla_len(a) &&
+		     action_lens[type] != (u32)-1))
+			return -EINVAL;
+
+		skip_copy = false;
+		switch (type) {
+		case OVS_ACTION_ATTR_UNSPEC:
+			return -EINVAL;
+
+		case OVS_ACTION_ATTR_USERSPACE:
+			err = validate_userspace(a);
+			if (err)
+				return err;
+			break;
+
+		case OVS_ACTION_ATTR_OUTPUT:
+			if (nla_get_u32(a) >= DP_MAX_PORTS)
+				return -EINVAL;
+			break;
+
+
+		case OVS_ACTION_ATTR_POP_VLAN:
+			break;
+
+		case OVS_ACTION_ATTR_PUSH_VLAN:
+			vlan = nla_data(a);
+			if (vlan->vlan_tpid != htons(ETH_P_8021Q))
+				return -EINVAL;
+			if (!(vlan->vlan_tci & htons(VLAN_TAG_PRESENT)))
+				return -EINVAL;
+			break;
+
+		case OVS_ACTION_ATTR_SET:
+			err = validate_set(a, key, sfa, &skip_copy);
+			if (err)
+				return err;
+			break;
+
+		case OVS_ACTION_ATTR_SAMPLE:
+			err = validate_and_copy_sample(a, key, depth, sfa);
+			if (err)
+				return err;
+			skip_copy = true;
+			break;
+
+		default:
+			return -EINVAL;
+		}
+		if (!skip_copy) {
+			err = copy_action(a, sfa);
+			if (err)
+				return err;
+		}
+	}
+
+	if (rem > 0)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int sample_action_to_attr(const struct nlattr *attr, struct sk_buff *skb)
+{
+	const struct nlattr *a;
+	struct nlattr *start;
+	int err = 0, rem;
+
+	start = nla_nest_start(skb, OVS_ACTION_ATTR_SAMPLE);
+	if (!start)
+		return -EMSGSIZE;
+
+	nla_for_each_nested(a, attr, rem) {
+		int type = nla_type(a);
+		struct nlattr *st_sample;
+
+		switch (type) {
+		case OVS_SAMPLE_ATTR_PROBABILITY:
+			if (nla_put(skb, OVS_SAMPLE_ATTR_PROBABILITY,
+				    sizeof(u32), nla_data(a)))
+				return -EMSGSIZE;
+			break;
+		case OVS_SAMPLE_ATTR_ACTIONS:
+			st_sample = nla_nest_start(skb, OVS_SAMPLE_ATTR_ACTIONS);
+			if (!st_sample)
+				return -EMSGSIZE;
+			err = ovs_nla_put_actions(nla_data(a), nla_len(a), skb);
+			if (err)
+				return err;
+			nla_nest_end(skb, st_sample);
+			break;
+		}
+	}
+
+	nla_nest_end(skb, start);
+	return err;
+}
+
+static int set_action_to_attr(const struct nlattr *a, struct sk_buff *skb)
+{
+	const struct nlattr *ovs_key = nla_data(a);
+	int key_type = nla_type(ovs_key);
+	struct nlattr *start;
+	int err;
+
+	switch (key_type) {
+	case OVS_KEY_ATTR_IPV4_TUNNEL:
+		start = nla_nest_start(skb, OVS_ACTION_ATTR_SET);
+		if (!start)
+			return -EMSGSIZE;
+
+		err = ipv4_tun_to_nlattr(skb, nla_data(ovs_key),
+					     nla_data(ovs_key));
+		if (err)
+			return err;
+		nla_nest_end(skb, start);
+		break;
+	default:
+		if (nla_put(skb, OVS_ACTION_ATTR_SET, nla_len(a), ovs_key))
+			return -EMSGSIZE;
+		break;
+	}
+
+	return 0;
+}
+
+int ovs_nla_put_actions(const struct nlattr *attr, int len, struct sk_buff *skb)
+{
+	const struct nlattr *a;
+	int rem, err;
+
+	nla_for_each_attr(a, attr, len, rem) {
+		int type = nla_type(a);
+
+		switch (type) {
+		case OVS_ACTION_ATTR_SET:
+			err = set_action_to_attr(a, skb);
+			if (err)
+				return err;
+			break;
+
+		case OVS_ACTION_ATTR_SAMPLE:
+			err = sample_action_to_attr(a, skb);
+			if (err)
+				return err;
+			break;
+		default:
+			if (nla_put(skb, type, nla_len(a), nla_data(a)))
+				return -EMSGSIZE;
+			break;
+		}
+	}
+
+	return 0;
+}
diff --git a/net/openvswitch/flow_netlink.h b/net/openvswitch/flow_netlink.h
new file mode 100644
index 000000000000..440151045d39
--- /dev/null
+++ b/net/openvswitch/flow_netlink.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright (c) 2007-2013 Nicira, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+
+#ifndef FLOW_NETLINK_H
+#define FLOW_NETLINK_H 1
+
+#include <linux/kernel.h>
+#include <linux/netlink.h>
+#include <linux/openvswitch.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+#include <linux/rcupdate.h>
+#include <linux/if_ether.h>
+#include <linux/in6.h>
+#include <linux/jiffies.h>
+#include <linux/time.h>
+#include <linux/flex_array.h>
+
+#include <net/inet_ecn.h>
+#include <net/ip_tunnels.h>
+
+#include "flow.h"
+
+void ovs_match_init(struct sw_flow_match *match,
+		    struct sw_flow_key *key, struct sw_flow_mask *mask);
+
+int ovs_nla_put_flow(const struct sw_flow_key *,
+		     const struct sw_flow_key *, struct sk_buff *);
+int ovs_nla_get_flow_metadata(struct sw_flow *flow,
+			      const struct nlattr *attr);
+int ovs_nla_get_match(struct sw_flow_match *match,
+		      const struct nlattr *,
+		      const struct nlattr *);
+
+int ovs_nla_copy_actions(const struct nlattr *attr,
+			 const struct sw_flow_key *key, int depth,
+			 struct sw_flow_actions **sfa);
+int ovs_nla_put_actions(const struct nlattr *attr,
+			int len, struct sk_buff *skb);
+
+struct sw_flow_actions *ovs_nla_alloc_flow_actions(int actions_len);
+void ovs_nla_free_flow_actions(struct sw_flow_actions *);
+
+#endif /* flow_netlink.h */
diff --git a/net/openvswitch/flow_table.c b/net/openvswitch/flow_table.c
new file mode 100644
index 000000000000..dcadb75bb173
--- /dev/null
+++ b/net/openvswitch/flow_table.c
@@ -0,0 +1,517 @@
+/*
+ * Copyright (c) 2007-2013 Nicira, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+#include "flow.h"
+#include "datapath.h"
+#include <linux/uaccess.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/if_ether.h>
+#include <linux/if_vlan.h>
+#include <net/llc_pdu.h>
+#include <linux/kernel.h>
+#include <linux/jhash.h>
+#include <linux/jiffies.h>
+#include <linux/llc.h>
+#include <linux/module.h>
+#include <linux/in.h>
+#include <linux/rcupdate.h>
+#include <linux/if_arp.h>
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/sctp.h>
+#include <linux/tcp.h>
+#include <linux/udp.h>
+#include <linux/icmp.h>
+#include <linux/icmpv6.h>
+#include <linux/rculist.h>
+#include <net/ip.h>
+#include <net/ipv6.h>
+#include <net/ndisc.h>
+
+static struct kmem_cache *flow_cache;
+
+static u16 range_n_bytes(const struct sw_flow_key_range *range)
+{
+	return range->end - range->start;
+}
+
+void ovs_flow_mask_key(struct sw_flow_key *dst, const struct sw_flow_key *src,
+		       const struct sw_flow_mask *mask)
+{
+	const long *m = (long *)((u8 *)&mask->key + mask->range.start);
+	const long *s = (long *)((u8 *)src + mask->range.start);
+	long *d = (long *)((u8 *)dst + mask->range.start);
+	int i;
+
+	/* The memory outside of the 'mask->range' are not set since
+	 * further operations on 'dst' only uses contents within
+	 * 'mask->range'.
+	 */
+	for (i = 0; i < range_n_bytes(&mask->range); i += sizeof(long))
+		*d++ = *s++ & *m++;
+}
+
+struct sw_flow *ovs_flow_alloc(void)
+{
+	struct sw_flow *flow;
+
+	flow = kmem_cache_alloc(flow_cache, GFP_KERNEL);
+	if (!flow)
+		return ERR_PTR(-ENOMEM);
+
+	spin_lock_init(&flow->lock);
+	flow->sf_acts = NULL;
+	flow->mask = NULL;
+
+	return flow;
+}
+
+static struct flex_array *alloc_buckets(unsigned int n_buckets)
+{
+	struct flex_array *buckets;
+	int i, err;
+
+	buckets = flex_array_alloc(sizeof(struct hlist_head),
+				   n_buckets, GFP_KERNEL);
+	if (!buckets)
+		return NULL;
+
+	err = flex_array_prealloc(buckets, 0, n_buckets, GFP_KERNEL);
+	if (err) {
+		flex_array_free(buckets);
+		return NULL;
+	}
+
+	for (i = 0; i < n_buckets; i++)
+		INIT_HLIST_HEAD((struct hlist_head *)
+					flex_array_get(buckets, i));
+
+	return buckets;
+}
+
+static void flow_free(struct sw_flow *flow)
+{
+	kfree((struct sf_flow_acts __force *)flow->sf_acts);
+	kmem_cache_free(flow_cache, flow);
+}
+
+static void rcu_free_flow_callback(struct rcu_head *rcu)
+{
+	struct sw_flow *flow = container_of(rcu, struct sw_flow, rcu);
+
+	flow_free(flow);
+}
+
+void ovs_flow_free(struct sw_flow *flow, bool deferred)
+{
+	if (!flow)
+		return;
+
+	ovs_sw_flow_mask_del_ref(flow->mask, deferred);
+
+	if (deferred)
+		call_rcu(&flow->rcu, rcu_free_flow_callback);
+	else
+		flow_free(flow);
+}
+
+static void free_buckets(struct flex_array *buckets)
+{
+	flex_array_free(buckets);
+}
+
+static void __flow_tbl_destroy(struct flow_table *table)
+{
+	int i;
+
+	if (table->keep_flows)
+		goto skip_flows;
+
+	for (i = 0; i < table->n_buckets; i++) {
+		struct sw_flow *flow;
+		struct hlist_head *head = flex_array_get(table->buckets, i);
+		struct hlist_node *n;
+		int ver = table->node_ver;
+
+		hlist_for_each_entry_safe(flow, n, head, hash_node[ver]) {
+			hlist_del(&flow->hash_node[ver]);
+			ovs_flow_free(flow, false);
+		}
+	}
+
+	BUG_ON(!list_empty(table->mask_list));
+	kfree(table->mask_list);
+
+skip_flows:
+	free_buckets(table->buckets);
+	kfree(table);
+}
+
+static struct flow_table *__flow_tbl_alloc(int new_size)
+{
+	struct flow_table *table = kmalloc(sizeof(*table), GFP_KERNEL);
+
+	if (!table)
+		return NULL;
+
+	table->buckets = alloc_buckets(new_size);
+
+	if (!table->buckets) {
+		kfree(table);
+		return NULL;
+	}
+	table->n_buckets = new_size;
+	table->count = 0;
+	table->node_ver = 0;
+	table->keep_flows = false;
+	get_random_bytes(&table->hash_seed, sizeof(u32));
+	table->mask_list = NULL;
+
+	return table;
+}
+
+struct flow_table *ovs_flow_tbl_alloc(int new_size)
+{
+	struct flow_table *table = __flow_tbl_alloc(new_size);
+
+	if (!table)
+		return NULL;
+
+	table->mask_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
+	if (!table->mask_list) {
+		table->keep_flows = true;
+		__flow_tbl_destroy(table);
+		return NULL;
+	}
+	INIT_LIST_HEAD(table->mask_list);
+
+	return table;
+}
+
+static void flow_tbl_destroy_rcu_cb(struct rcu_head *rcu)
+{
+	struct flow_table *table = container_of(rcu, struct flow_table, rcu);
+
+	__flow_tbl_destroy(table);
+}
+
+void ovs_flow_tbl_destroy(struct flow_table *table, bool deferred)
+{
+	if (!table)
+		return;
+
+	if (deferred)
+		call_rcu(&table->rcu, flow_tbl_destroy_rcu_cb);
+	else
+		__flow_tbl_destroy(table);
+}
+
+struct sw_flow *ovs_flow_tbl_dump_next(struct flow_table *table,
+				       u32 *bucket, u32 *last)
+{
+	struct sw_flow *flow;
+	struct hlist_head *head;
+	int ver;
+	int i;
+
+	ver = table->node_ver;
+	while (*bucket < table->n_buckets) {
+		i = 0;
+		head = flex_array_get(table->buckets, *bucket);
+		hlist_for_each_entry_rcu(flow, head, hash_node[ver]) {
+			if (i < *last) {
+				i++;
+				continue;
+			}
+			*last = i + 1;
+			return flow;
+		}
+		(*bucket)++;
+		*last = 0;
+	}
+
+	return NULL;
+}
+
+static struct hlist_head *find_bucket(struct flow_table *table, u32 hash)
+{
+	hash = jhash_1word(hash, table->hash_seed);
+	return flex_array_get(table->buckets,
+				(hash & (table->n_buckets - 1)));
+}
+
+static void __tbl_insert(struct flow_table *table, struct sw_flow *flow)
+{
+	struct hlist_head *head;
+
+	head = find_bucket(table, flow->hash);
+	hlist_add_head_rcu(&flow->hash_node[table->node_ver], head);
+
+	table->count++;
+}
+
+static void flow_table_copy_flows(struct flow_table *old,
+				  struct flow_table *new)
+{
+	int old_ver;
+	int i;
+
+	old_ver = old->node_ver;
+	new->node_ver = !old_ver;
+
+	/* Insert in new table. */
+	for (i = 0; i < old->n_buckets; i++) {
+		struct sw_flow *flow;
+		struct hlist_head *head;
+
+		head = flex_array_get(old->buckets, i);
+
+		hlist_for_each_entry(flow, head, hash_node[old_ver])
+			__tbl_insert(new, flow);
+	}
+
+	new->mask_list = old->mask_list;
+	old->keep_flows = true;
+}
+
+static struct flow_table *__flow_tbl_rehash(struct flow_table *table,
+					    int n_buckets)
+{
+	struct flow_table *new_table;
+
+	new_table = __flow_tbl_alloc(n_buckets);
+	if (!new_table)
+		return ERR_PTR(-ENOMEM);
+
+	flow_table_copy_flows(table, new_table);
+
+	return new_table;
+}
+
+struct flow_table *ovs_flow_tbl_rehash(struct flow_table *table)
+{
+	return __flow_tbl_rehash(table, table->n_buckets);
+}
+
+struct flow_table *ovs_flow_tbl_expand(struct flow_table *table)
+{
+	return __flow_tbl_rehash(table, table->n_buckets * 2);
+}
+
+static u32 flow_hash(const struct sw_flow_key *key, int key_start,
+		     int key_end)
+{
+	u32 *hash_key = (u32 *)((u8 *)key + key_start);
+	int hash_u32s = (key_end - key_start) >> 2;
+
+	/* Make sure number of hash bytes are multiple of u32. */
+	BUILD_BUG_ON(sizeof(long) % sizeof(u32));
+
+	return jhash2(hash_key, hash_u32s, 0);
+}
+
+static int flow_key_start(const struct sw_flow_key *key)
+{
+	if (key->tun_key.ipv4_dst)
+		return 0;
+	else
+		return rounddown(offsetof(struct sw_flow_key, phy),
+					  sizeof(long));
+}
+
+static bool cmp_key(const struct sw_flow_key *key1,
+		    const struct sw_flow_key *key2,
+		    int key_start, int key_end)
+{
+	const long *cp1 = (long *)((u8 *)key1 + key_start);
+	const long *cp2 = (long *)((u8 *)key2 + key_start);
+	long diffs = 0;
+	int i;
+
+	for (i = key_start; i < key_end;  i += sizeof(long))
+		diffs |= *cp1++ ^ *cp2++;
+
+	return diffs == 0;
+}
+
+static bool flow_cmp_masked_key(const struct sw_flow *flow,
+				const struct sw_flow_key *key,
+				int key_start, int key_end)
+{
+	return cmp_key(&flow->key, key, key_start, key_end);
+}
+
+bool ovs_flow_cmp_unmasked_key(const struct sw_flow *flow,
+			       struct sw_flow_match *match)
+{
+	struct sw_flow_key *key = match->key;
+	int key_start = flow_key_start(key);
+	int key_end = match->range.end;
+
+	return cmp_key(&flow->unmasked_key, key, key_start, key_end);
+}
+
+static struct sw_flow *masked_flow_lookup(struct flow_table *table,
+					  const struct sw_flow_key *unmasked,
+					  struct sw_flow_mask *mask)
+{
+	struct sw_flow *flow;
+	struct hlist_head *head;
+	int key_start = mask->range.start;
+	int key_end = mask->range.end;
+	u32 hash;
+	struct sw_flow_key masked_key;
+
+	ovs_flow_mask_key(&masked_key, unmasked, mask);
+	hash = flow_hash(&masked_key, key_start, key_end);
+	head = find_bucket(table, hash);
+	hlist_for_each_entry_rcu(flow, head, hash_node[table->node_ver]) {
+		if (flow->mask == mask &&
+		    flow_cmp_masked_key(flow, &masked_key,
+					  key_start, key_end))
+			return flow;
+	}
+	return NULL;
+}
+
+struct sw_flow *ovs_flow_tbl_lookup(struct flow_table *tbl,
+				    const struct sw_flow_key *key)
+{
+	struct sw_flow *flow = NULL;
+	struct sw_flow_mask *mask;
+
+	list_for_each_entry_rcu(mask, tbl->mask_list, list) {
+		flow = masked_flow_lookup(tbl, key, mask);
+		if (flow)  /* Found */
+			break;
+	}
+
+	return flow;
+}
+
+void ovs_flow_tbl_insert(struct flow_table *table, struct sw_flow *flow)
+{
+	flow->hash = flow_hash(&flow->key, flow->mask->range.start,
+			flow->mask->range.end);
+	__tbl_insert(table, flow);
+}
+
+void ovs_flow_tbl_remove(struct flow_table *table, struct sw_flow *flow)
+{
+	BUG_ON(table->count == 0);
+	hlist_del_rcu(&flow->hash_node[table->node_ver]);
+	table->count--;
+}
+
+struct sw_flow_mask *ovs_sw_flow_mask_alloc(void)
+{
+	struct sw_flow_mask *mask;
+
+	mask = kmalloc(sizeof(*mask), GFP_KERNEL);
+	if (mask)
+		mask->ref_count = 0;
+
+	return mask;
+}
+
+void ovs_sw_flow_mask_add_ref(struct sw_flow_mask *mask)
+{
+	mask->ref_count++;
+}
+
+static void rcu_free_sw_flow_mask_cb(struct rcu_head *rcu)
+{
+	struct sw_flow_mask *mask = container_of(rcu, struct sw_flow_mask, rcu);
+
+	kfree(mask);
+}
+
+void ovs_sw_flow_mask_del_ref(struct sw_flow_mask *mask, bool deferred)
+{
+	if (!mask)
+		return;
+
+	BUG_ON(!mask->ref_count);
+	mask->ref_count--;
+
+	if (!mask->ref_count) {
+		list_del_rcu(&mask->list);
+		if (deferred)
+			call_rcu(&mask->rcu, rcu_free_sw_flow_mask_cb);
+		else
+			kfree(mask);
+	}
+}
+
+static bool mask_equal(const struct sw_flow_mask *a,
+		       const struct sw_flow_mask *b)
+{
+	u8 *a_ = (u8 *)&a->key + a->range.start;
+	u8 *b_ = (u8 *)&b->key + b->range.start;
+
+	return  (a->range.end == b->range.end)
+		&& (a->range.start == b->range.start)
+		&& (memcmp(a_, b_, range_n_bytes(&a->range)) == 0);
+}
+
+struct sw_flow_mask *ovs_sw_flow_mask_find(const struct flow_table *tbl,
+					   const struct sw_flow_mask *mask)
+{
+	struct list_head *ml;
+
+	list_for_each(ml, tbl->mask_list) {
+		struct sw_flow_mask *m;
+		m = container_of(ml, struct sw_flow_mask, list);
+		if (mask_equal(mask, m))
+			return m;
+	}
+
+	return NULL;
+}
+
+/**
+ * add a new mask into the mask list.
+ * The caller needs to make sure that 'mask' is not the same
+ * as any masks that are already on the list.
+ */
+void ovs_sw_flow_mask_insert(struct flow_table *tbl, struct sw_flow_mask *mask)
+{
+	list_add_rcu(&mask->list, tbl->mask_list);
+}
+
+/* Initializes the flow module.
+ * Returns zero if successful or a negative error code. */
+int ovs_flow_init(void)
+{
+	BUILD_BUG_ON(__alignof__(struct sw_flow_key) % __alignof__(long));
+	BUILD_BUG_ON(sizeof(struct sw_flow_key) % sizeof(long));
+
+	flow_cache = kmem_cache_create("sw_flow", sizeof(struct sw_flow), 0,
+					0, NULL);
+	if (flow_cache == NULL)
+		return -ENOMEM;
+
+	return 0;
+}
+
+/* Uninitializes the flow module. */
+void ovs_flow_exit(void)
+{
+	kmem_cache_destroy(flow_cache);
+}
diff --git a/net/openvswitch/flow_table.h b/net/openvswitch/flow_table.h
new file mode 100644
index 000000000000..d7a114457cde
--- /dev/null
+++ b/net/openvswitch/flow_table.h
@@ -0,0 +1,91 @@
+/*
+ * Copyright (c) 2007-2013 Nicira, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+#ifndef FLOW_TABLE_H
+#define FLOW_TABLE_H 1
+
+#include <linux/kernel.h>
+#include <linux/netlink.h>
+#include <linux/openvswitch.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+#include <linux/rcupdate.h>
+#include <linux/if_ether.h>
+#include <linux/in6.h>
+#include <linux/jiffies.h>
+#include <linux/time.h>
+#include <linux/flex_array.h>
+
+#include <net/inet_ecn.h>
+#include <net/ip_tunnels.h>
+
+#include "flow.h"
+
+#define TBL_MIN_BUCKETS		1024
+
+struct flow_table {
+	struct flex_array *buckets;
+	unsigned int count, n_buckets;
+	struct rcu_head rcu;
+	struct list_head *mask_list;
+	int node_ver;
+	u32 hash_seed;
+	bool keep_flows;
+};
+
+int ovs_flow_init(void);
+void ovs_flow_exit(void);
+
+struct sw_flow *ovs_flow_alloc(void);
+void ovs_flow_free(struct sw_flow *, bool deferred);
+
+static inline int ovs_flow_tbl_count(struct flow_table *table)
+{
+	return table->count;
+}
+
+static inline int ovs_flow_tbl_need_to_expand(struct flow_table *table)
+{
+	return (table->count > table->n_buckets);
+}
+
+struct flow_table *ovs_flow_tbl_alloc(int new_size);
+struct flow_table *ovs_flow_tbl_expand(struct flow_table *table);
+struct flow_table *ovs_flow_tbl_rehash(struct flow_table *table);
+void ovs_flow_tbl_destroy(struct flow_table *table, bool deferred);
+
+void ovs_flow_tbl_insert(struct flow_table *table, struct sw_flow *flow);
+void ovs_flow_tbl_remove(struct flow_table *table, struct sw_flow *flow);
+struct sw_flow *ovs_flow_tbl_dump_next(struct flow_table *table,
+				       u32 *bucket, u32 *idx);
+struct sw_flow *ovs_flow_tbl_lookup(struct flow_table *,
+				    const struct sw_flow_key *);
+
+bool ovs_flow_cmp_unmasked_key(const struct sw_flow *flow,
+			       struct sw_flow_match *match);
+
+struct sw_flow_mask *ovs_sw_flow_mask_alloc(void);
+void ovs_sw_flow_mask_add_ref(struct sw_flow_mask *);
+void ovs_sw_flow_mask_del_ref(struct sw_flow_mask *, bool deferred);
+void ovs_sw_flow_mask_insert(struct flow_table *, struct sw_flow_mask *);
+struct sw_flow_mask *ovs_sw_flow_mask_find(const struct flow_table *,
+					   const struct sw_flow_mask *);
+void ovs_flow_mask_key(struct sw_flow_key *dst, const struct sw_flow_key *src,
+		       const struct sw_flow_mask *mask);
+
+#endif /* flow_table.h */
-- 
cgit 


From f1e5d54743b99cbbea0e0cfb2b3f8053f045b3d7 Mon Sep 17 00:00:00 2001
From: Andre Guedes <andre.guedes@openbossa.org>
Date: Thu, 3 Oct 2013 18:25:44 -0300
Subject: Bluetooth: Rename hci_conn variable in hci_connect_le()

This patch simply rename the hci_conn variable "le" to "conn"
since it is a better name.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/hci_conn.c | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 514148b7a66b..5aba520cddfe 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -549,31 +549,31 @@ EXPORT_SYMBOL(hci_get_route);
 static struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
 				    u8 dst_type, u8 sec_level, u8 auth_type)
 {
-	struct hci_conn *le;
+	struct hci_conn *conn;
 
 	if (test_bit(HCI_LE_PERIPHERAL, &hdev->flags))
 		return ERR_PTR(-ENOTSUPP);
 
-	le = hci_conn_hash_lookup_ba(hdev, LE_LINK, dst);
-	if (!le) {
-		le = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
-		if (le)
+	conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, dst);
+	if (!conn) {
+		conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
+		if (conn)
 			return ERR_PTR(-EBUSY);
 
-		le = hci_conn_add(hdev, LE_LINK, dst);
-		if (!le)
+		conn = hci_conn_add(hdev, LE_LINK, dst);
+		if (!conn)
 			return ERR_PTR(-ENOMEM);
 
-		le->dst_type = bdaddr_to_le(dst_type);
-		hci_le_create_connection(le);
+		conn->dst_type = bdaddr_to_le(dst_type);
+		hci_le_create_connection(conn);
 	}
 
-	le->pending_sec_level = sec_level;
-	le->auth_type = auth_type;
+	conn->pending_sec_level = sec_level;
+	conn->auth_type = auth_type;
 
-	hci_conn_hold(le);
+	hci_conn_hold(conn);
 
-	return le;
+	return conn;
 }
 
 static struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst,
-- 
cgit 


From 46a190cbd3d8992a017664367e9227dcd357ce53 Mon Sep 17 00:00:00 2001
From: Andre Guedes <andre.guedes@openbossa.org>
Date: Thu, 3 Oct 2013 18:25:45 -0300
Subject: Bluetooth: Initialize hci_conn fields in hci_connect_le

This patch moves some hci_conn fields initialization from hci_le_
create_connection() to hci_connect_le(). It makes more sense to
initialize these fields within the function that creates the hci_
conn object.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/hci_conn.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 5aba520cddfe..08e601c68314 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -54,11 +54,6 @@ static void hci_le_create_connection(struct hci_conn *conn)
 	struct hci_dev *hdev = conn->hdev;
 	struct hci_cp_le_create_conn cp;
 
-	conn->state = BT_CONNECT;
-	conn->out = true;
-	conn->link_mode |= HCI_LM_MASTER;
-	conn->sec_level = BT_SECURITY_LOW;
-
 	memset(&cp, 0, sizeof(cp));
 	cp.scan_interval = __constant_cpu_to_le16(0x0060);
 	cp.scan_window = __constant_cpu_to_le16(0x0030);
@@ -565,6 +560,11 @@ static struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
 			return ERR_PTR(-ENOMEM);
 
 		conn->dst_type = bdaddr_to_le(dst_type);
+		conn->state = BT_CONNECT;
+		conn->out = true;
+		conn->link_mode |= HCI_LM_MASTER;
+		conn->sec_level = BT_SECURITY_LOW;
+
 		hci_le_create_connection(conn);
 	}
 
-- 
cgit 


From b637e4988c2d689bb43f943a5af0e684a4981159 Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Fri, 4 Oct 2013 00:14:23 -0700
Subject: openvswitch: Move mega-flow list out of rehashing struct.

ovs-flow rehash does not touch mega flow list. Following patch
moves it dp struct datapath.  Avoid one extra indirection for
accessing mega-flow list head on every packet receive.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
---
 net/openvswitch/datapath.c   |  77 ++++------------
 net/openvswitch/datapath.h   |   6 +-
 net/openvswitch/flow_table.c | 205 ++++++++++++++++++++++++++-----------------
 net/openvswitch/flow_table.h |  32 +++----
 4 files changed, 155 insertions(+), 165 deletions(-)

diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 72e68743c643..60b9be3b9477 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -59,8 +59,6 @@
 #include "vport-internal_dev.h"
 #include "vport-netdev.h"
 
-#define REHASH_FLOW_INTERVAL (10 * 60 * HZ)
-
 int ovs_net_id __read_mostly;
 
 static void ovs_notify(struct sk_buff *skb, struct genl_info *info,
@@ -163,7 +161,7 @@ static void destroy_dp_rcu(struct rcu_head *rcu)
 {
 	struct datapath *dp = container_of(rcu, struct datapath, rcu);
 
-	ovs_flow_tbl_destroy((__force struct flow_table *)dp->table, false);
+	ovs_flow_tbl_destroy(&dp->table, false);
 	free_percpu(dp->stats_percpu);
 	release_net(ovs_dp_get_net(dp));
 	kfree(dp->ports);
@@ -235,7 +233,7 @@ void ovs_dp_process_received_packet(struct vport *p, struct sk_buff *skb)
 	}
 
 	/* Look up flow. */
-	flow = ovs_flow_tbl_lookup(rcu_dereference(dp->table), &key);
+	flow = ovs_flow_tbl_lookup(&dp->table, &key);
 	if (unlikely(!flow)) {
 		struct dp_upcall_info upcall;
 
@@ -453,23 +451,6 @@ out:
 	return err;
 }
 
-/* Called with ovs_mutex. */
-static int flush_flows(struct datapath *dp)
-{
-	struct flow_table *old_table;
-	struct flow_table *new_table;
-
-	old_table = ovsl_dereference(dp->table);
-	new_table = ovs_flow_tbl_alloc(TBL_MIN_BUCKETS);
-	if (!new_table)
-		return -ENOMEM;
-
-	rcu_assign_pointer(dp->table, new_table);
-
-	ovs_flow_tbl_destroy(old_table, true);
-	return 0;
-}
-
 static void clear_stats(struct sw_flow *flow)
 {
 	flow->used = 0;
@@ -584,11 +565,9 @@ static struct genl_ops dp_packet_genl_ops[] = {
 
 static void get_dp_stats(struct datapath *dp, struct ovs_dp_stats *stats)
 {
-	struct flow_table *table;
 	int i;
 
-	table = rcu_dereference_check(dp->table, lockdep_ovsl_is_held());
-	stats->n_flows = ovs_flow_tbl_count(table);
+	stats->n_flows = ovs_flow_tbl_count(&dp->table);
 
 	stats->n_hit = stats->n_missed = stats->n_lost = 0;
 	for_each_possible_cpu(i) {
@@ -773,7 +752,6 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 	struct sw_flow_mask mask;
 	struct sk_buff *reply;
 	struct datapath *dp;
-	struct flow_table *table;
 	struct sw_flow_actions *acts = NULL;
 	struct sw_flow_match match;
 	int error;
@@ -814,12 +792,9 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 	if (!dp)
 		goto err_unlock_ovs;
 
-	table = ovsl_dereference(dp->table);
-
 	/* Check if this is a duplicate flow */
-	flow = ovs_flow_tbl_lookup(table, &key);
+	flow = ovs_flow_tbl_lookup(&dp->table, &key);
 	if (!flow) {
-		struct flow_table *new_table = NULL;
 		struct sw_flow_mask *mask_p;
 
 		/* Bail out if we're not allowed to create a new flow. */
@@ -827,19 +802,6 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 		if (info->genlhdr->cmd == OVS_FLOW_CMD_SET)
 			goto err_unlock_ovs;
 
-		/* Expand table, if necessary, to make room. */
-		if (ovs_flow_tbl_need_to_expand(table))
-			new_table = ovs_flow_tbl_expand(table);
-		else if (time_after(jiffies, dp->last_rehash + REHASH_FLOW_INTERVAL))
-			new_table = ovs_flow_tbl_rehash(table);
-
-		if (new_table && !IS_ERR(new_table)) {
-			rcu_assign_pointer(dp->table, new_table);
-			ovs_flow_tbl_destroy(table, true);
-			table = ovsl_dereference(dp->table);
-			dp->last_rehash = jiffies;
-		}
-
 		/* Allocate flow. */
 		flow = ovs_flow_alloc();
 		if (IS_ERR(flow)) {
@@ -852,7 +814,7 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 		flow->unmasked_key = key;
 
 		/* Make sure mask is unique in the system */
-		mask_p = ovs_sw_flow_mask_find(table, &mask);
+		mask_p = ovs_sw_flow_mask_find(&dp->table, &mask);
 		if (!mask_p) {
 			/* Allocate a new mask if none exsits. */
 			mask_p = ovs_sw_flow_mask_alloc();
@@ -860,7 +822,7 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 				goto err_flow_free;
 			mask_p->key = mask.key;
 			mask_p->range = mask.range;
-			ovs_sw_flow_mask_insert(table, mask_p);
+			ovs_sw_flow_mask_insert(&dp->table, mask_p);
 		}
 
 		ovs_sw_flow_mask_add_ref(mask_p);
@@ -868,7 +830,7 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 		rcu_assign_pointer(flow->sf_acts, acts);
 
 		/* Put flow in bucket. */
-		ovs_flow_tbl_insert(table, flow);
+		ovs_flow_tbl_insert(&dp->table, flow);
 
 		reply = ovs_flow_cmd_build_info(flow, dp, info->snd_portid,
 						info->snd_seq, OVS_FLOW_CMD_NEW);
@@ -936,7 +898,6 @@ static int ovs_flow_cmd_get(struct sk_buff *skb, struct genl_info *info)
 	struct sk_buff *reply;
 	struct sw_flow *flow;
 	struct datapath *dp;
-	struct flow_table *table;
 	struct sw_flow_match match;
 	int err;
 
@@ -957,8 +918,7 @@ static int ovs_flow_cmd_get(struct sk_buff *skb, struct genl_info *info)
 		goto unlock;
 	}
 
-	table = ovsl_dereference(dp->table);
-	flow = ovs_flow_tbl_lookup(table, &key);
+	flow = ovs_flow_tbl_lookup(&dp->table, &key);
 	if (!flow || !ovs_flow_cmp_unmasked_key(flow, &match)) {
 		err = -ENOENT;
 		goto unlock;
@@ -986,7 +946,6 @@ static int ovs_flow_cmd_del(struct sk_buff *skb, struct genl_info *info)
 	struct sk_buff *reply;
 	struct sw_flow *flow;
 	struct datapath *dp;
-	struct flow_table *table;
 	struct sw_flow_match match;
 	int err;
 
@@ -998,7 +957,7 @@ static int ovs_flow_cmd_del(struct sk_buff *skb, struct genl_info *info)
 	}
 
 	if (!a[OVS_FLOW_ATTR_KEY]) {
-		err = flush_flows(dp);
+		err = ovs_flow_tbl_flush(&dp->table);
 		goto unlock;
 	}
 
@@ -1007,8 +966,7 @@ static int ovs_flow_cmd_del(struct sk_buff *skb, struct genl_info *info)
 	if (err)
 		goto unlock;
 
-	table = ovsl_dereference(dp->table);
-	flow = ovs_flow_tbl_lookup(table, &key);
+	flow = ovs_flow_tbl_lookup(&dp->table, &key);
 	if (!flow || !ovs_flow_cmp_unmasked_key(flow, &match)) {
 		err = -ENOENT;
 		goto unlock;
@@ -1020,7 +978,7 @@ static int ovs_flow_cmd_del(struct sk_buff *skb, struct genl_info *info)
 		goto unlock;
 	}
 
-	ovs_flow_tbl_remove(table, flow);
+	ovs_flow_tbl_remove(&dp->table, flow);
 
 	err = ovs_flow_cmd_fill_info(flow, dp, reply, info->snd_portid,
 				     info->snd_seq, 0, OVS_FLOW_CMD_DEL);
@@ -1039,8 +997,8 @@ unlock:
 static int ovs_flow_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb)
 {
 	struct ovs_header *ovs_header = genlmsg_data(nlmsg_data(cb->nlh));
+	struct table_instance *ti;
 	struct datapath *dp;
-	struct flow_table *table;
 
 	rcu_read_lock();
 	dp = get_dp(sock_net(skb->sk), ovs_header->dp_ifindex);
@@ -1049,14 +1007,14 @@ static int ovs_flow_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb)
 		return -ENODEV;
 	}
 
-	table = rcu_dereference(dp->table);
+	ti = rcu_dereference(dp->table.ti);
 	for (;;) {
 		struct sw_flow *flow;
 		u32 bucket, obj;
 
 		bucket = cb->args[0];
 		obj = cb->args[1];
-		flow = ovs_flow_tbl_dump_next(table, &bucket, &obj);
+		flow = ovs_flow_tbl_dump_next(ti, &bucket, &obj);
 		if (!flow)
 			break;
 
@@ -1220,9 +1178,8 @@ static int ovs_dp_cmd_new(struct sk_buff *skb, struct genl_info *info)
 	ovs_dp_set_net(dp, hold_net(sock_net(skb->sk)));
 
 	/* Allocate table. */
-	err = -ENOMEM;
-	rcu_assign_pointer(dp->table, ovs_flow_tbl_alloc(TBL_MIN_BUCKETS));
-	if (!dp->table)
+	err = ovs_flow_tbl_init(&dp->table);
+	if (err)
 		goto err_free_dp;
 
 	dp->stats_percpu = alloc_percpu(struct dp_stats_percpu);
@@ -1279,7 +1236,7 @@ err_destroy_ports_array:
 err_destroy_percpu:
 	free_percpu(dp->stats_percpu);
 err_destroy_table:
-	ovs_flow_tbl_destroy(ovsl_dereference(dp->table), false);
+	ovs_flow_tbl_destroy(&dp->table, false);
 err_free_dp:
 	release_net(ovs_dp_get_net(dp));
 	kfree(dp);
diff --git a/net/openvswitch/datapath.h b/net/openvswitch/datapath.h
index a6982ef84f20..acfd4af8ca3a 100644
--- a/net/openvswitch/datapath.h
+++ b/net/openvswitch/datapath.h
@@ -58,12 +58,11 @@ struct dp_stats_percpu {
  * struct datapath - datapath for flow-based packet switching
  * @rcu: RCU callback head for deferred destruction.
  * @list_node: Element in global 'dps' list.
- * @table: Current flow table.  Protected by ovs_mutex and RCU.
+ * @table: flow table.
  * @ports: Hash table for ports.  %OVSP_LOCAL port always exists.  Protected by
  * ovs_mutex and RCU.
  * @stats_percpu: Per-CPU datapath statistics.
  * @net: Reference to net namespace.
- * @last_rehash: Timestamp of last rehash.
  *
  * Context: See the comment on locking at the top of datapath.c for additional
  * locking information.
@@ -73,7 +72,7 @@ struct datapath {
 	struct list_head list_node;
 
 	/* Flow table. */
-	struct flow_table __rcu *table;
+	struct flow_table table;
 
 	/* Switch ports. */
 	struct hlist_head *ports;
@@ -85,7 +84,6 @@ struct datapath {
 	/* Network namespace ref. */
 	struct net *net;
 #endif
-	unsigned long last_rehash;
 };
 
 /**
diff --git a/net/openvswitch/flow_table.c b/net/openvswitch/flow_table.c
index dcadb75bb173..1c7e7732ed4c 100644
--- a/net/openvswitch/flow_table.c
+++ b/net/openvswitch/flow_table.c
@@ -44,6 +44,11 @@
 #include <net/ipv6.h>
 #include <net/ndisc.h>
 
+#include "datapath.h"
+
+#define TBL_MIN_BUCKETS		1024
+#define REHASH_INTERVAL		(10 * 60 * HZ)
+
 static struct kmem_cache *flow_cache;
 
 static u16 range_n_bytes(const struct sw_flow_key_range *range)
@@ -82,6 +87,11 @@ struct sw_flow *ovs_flow_alloc(void)
 	return flow;
 }
 
+int ovs_flow_tbl_count(struct flow_table *table)
+{
+	return table->count;
+}
+
 static struct flex_array *alloc_buckets(unsigned int n_buckets)
 {
 	struct flex_array *buckets;
@@ -136,18 +146,18 @@ static void free_buckets(struct flex_array *buckets)
 	flex_array_free(buckets);
 }
 
-static void __flow_tbl_destroy(struct flow_table *table)
+static void __table_instance_destroy(struct table_instance *ti)
 {
 	int i;
 
-	if (table->keep_flows)
+	if (ti->keep_flows)
 		goto skip_flows;
 
-	for (i = 0; i < table->n_buckets; i++) {
+	for (i = 0; i < ti->n_buckets; i++) {
 		struct sw_flow *flow;
-		struct hlist_head *head = flex_array_get(table->buckets, i);
+		struct hlist_head *head = flex_array_get(ti->buckets, i);
 		struct hlist_node *n;
-		int ver = table->node_ver;
+		int ver = ti->node_ver;
 
 		hlist_for_each_entry_safe(flow, n, head, hash_node[ver]) {
 			hlist_del(&flow->hash_node[ver]);
@@ -155,74 +165,74 @@ static void __flow_tbl_destroy(struct flow_table *table)
 		}
 	}
 
-	BUG_ON(!list_empty(table->mask_list));
-	kfree(table->mask_list);
-
 skip_flows:
-	free_buckets(table->buckets);
-	kfree(table);
+	free_buckets(ti->buckets);
+	kfree(ti);
 }
 
-static struct flow_table *__flow_tbl_alloc(int new_size)
+static struct table_instance *table_instance_alloc(int new_size)
 {
-	struct flow_table *table = kmalloc(sizeof(*table), GFP_KERNEL);
+	struct table_instance *ti = kmalloc(sizeof(*ti), GFP_KERNEL);
 
-	if (!table)
+	if (!ti)
 		return NULL;
 
-	table->buckets = alloc_buckets(new_size);
+	ti->buckets = alloc_buckets(new_size);
 
-	if (!table->buckets) {
-		kfree(table);
+	if (!ti->buckets) {
+		kfree(ti);
 		return NULL;
 	}
-	table->n_buckets = new_size;
-	table->count = 0;
-	table->node_ver = 0;
-	table->keep_flows = false;
-	get_random_bytes(&table->hash_seed, sizeof(u32));
-	table->mask_list = NULL;
+	ti->n_buckets = new_size;
+	ti->node_ver = 0;
+	ti->keep_flows = false;
+	get_random_bytes(&ti->hash_seed, sizeof(u32));
 
-	return table;
+	return ti;
 }
 
-struct flow_table *ovs_flow_tbl_alloc(int new_size)
+int ovs_flow_tbl_init(struct flow_table *table)
 {
-	struct flow_table *table = __flow_tbl_alloc(new_size);
+	struct table_instance *ti;
 
-	if (!table)
-		return NULL;
+	ti = table_instance_alloc(TBL_MIN_BUCKETS);
 
-	table->mask_list = kmalloc(sizeof(struct list_head), GFP_KERNEL);
-	if (!table->mask_list) {
-		table->keep_flows = true;
-		__flow_tbl_destroy(table);
-		return NULL;
-	}
-	INIT_LIST_HEAD(table->mask_list);
+	if (!ti)
+		return -ENOMEM;
 
-	return table;
+	rcu_assign_pointer(table->ti, ti);
+	INIT_LIST_HEAD(&table->mask_list);
+	table->last_rehash = jiffies;
+	table->count = 0;
+	return 0;
 }
 
 static void flow_tbl_destroy_rcu_cb(struct rcu_head *rcu)
 {
-	struct flow_table *table = container_of(rcu, struct flow_table, rcu);
+	struct table_instance *ti = container_of(rcu, struct table_instance, rcu);
 
-	__flow_tbl_destroy(table);
+	__table_instance_destroy(ti);
 }
 
-void ovs_flow_tbl_destroy(struct flow_table *table, bool deferred)
+static void table_instance_destroy(struct table_instance *ti, bool deferred)
 {
-	if (!table)
+	if (!ti)
 		return;
 
 	if (deferred)
-		call_rcu(&table->rcu, flow_tbl_destroy_rcu_cb);
+		call_rcu(&ti->rcu, flow_tbl_destroy_rcu_cb);
 	else
-		__flow_tbl_destroy(table);
+		__table_instance_destroy(ti);
+}
+
+void ovs_flow_tbl_destroy(struct flow_table *table, bool deferred)
+{
+	struct table_instance *ti = ovsl_dereference(table->ti);
+
+	table_instance_destroy(ti, deferred);
 }
 
-struct sw_flow *ovs_flow_tbl_dump_next(struct flow_table *table,
+struct sw_flow *ovs_flow_tbl_dump_next(struct table_instance *ti,
 				       u32 *bucket, u32 *last)
 {
 	struct sw_flow *flow;
@@ -230,10 +240,10 @@ struct sw_flow *ovs_flow_tbl_dump_next(struct flow_table *table,
 	int ver;
 	int i;
 
-	ver = table->node_ver;
-	while (*bucket < table->n_buckets) {
+	ver = ti->node_ver;
+	while (*bucket < ti->n_buckets) {
 		i = 0;
-		head = flex_array_get(table->buckets, *bucket);
+		head = flex_array_get(ti->buckets, *bucket);
 		hlist_for_each_entry_rcu(flow, head, hash_node[ver]) {
 			if (i < *last) {
 				i++;
@@ -249,25 +259,23 @@ struct sw_flow *ovs_flow_tbl_dump_next(struct flow_table *table,
 	return NULL;
 }
 
-static struct hlist_head *find_bucket(struct flow_table *table, u32 hash)
+static struct hlist_head *find_bucket(struct table_instance *ti, u32 hash)
 {
-	hash = jhash_1word(hash, table->hash_seed);
-	return flex_array_get(table->buckets,
-				(hash & (table->n_buckets - 1)));
+	hash = jhash_1word(hash, ti->hash_seed);
+	return flex_array_get(ti->buckets,
+				(hash & (ti->n_buckets - 1)));
 }
 
-static void __tbl_insert(struct flow_table *table, struct sw_flow *flow)
+static void table_instance_insert(struct table_instance *ti, struct sw_flow *flow)
 {
 	struct hlist_head *head;
 
-	head = find_bucket(table, flow->hash);
-	hlist_add_head_rcu(&flow->hash_node[table->node_ver], head);
-
-	table->count++;
+	head = find_bucket(ti, flow->hash);
+	hlist_add_head_rcu(&flow->hash_node[ti->node_ver], head);
 }
 
-static void flow_table_copy_flows(struct flow_table *old,
-				  struct flow_table *new)
+static void flow_table_copy_flows(struct table_instance *old,
+				  struct table_instance *new)
 {
 	int old_ver;
 	int i;
@@ -283,35 +291,42 @@ static void flow_table_copy_flows(struct flow_table *old,
 		head = flex_array_get(old->buckets, i);
 
 		hlist_for_each_entry(flow, head, hash_node[old_ver])
-			__tbl_insert(new, flow);
+			table_instance_insert(new, flow);
 	}
 
-	new->mask_list = old->mask_list;
 	old->keep_flows = true;
 }
 
-static struct flow_table *__flow_tbl_rehash(struct flow_table *table,
+static struct table_instance *table_instance_rehash(struct table_instance *ti,
 					    int n_buckets)
 {
-	struct flow_table *new_table;
+	struct table_instance *new_ti;
 
-	new_table = __flow_tbl_alloc(n_buckets);
-	if (!new_table)
+	new_ti = table_instance_alloc(n_buckets);
+	if (!new_ti)
 		return ERR_PTR(-ENOMEM);
 
-	flow_table_copy_flows(table, new_table);
+	flow_table_copy_flows(ti, new_ti);
 
-	return new_table;
+	return new_ti;
 }
 
-struct flow_table *ovs_flow_tbl_rehash(struct flow_table *table)
+int ovs_flow_tbl_flush(struct flow_table *flow_table)
 {
-	return __flow_tbl_rehash(table, table->n_buckets);
-}
+	struct table_instance *old_ti;
+	struct table_instance *new_ti;
 
-struct flow_table *ovs_flow_tbl_expand(struct flow_table *table)
-{
-	return __flow_tbl_rehash(table, table->n_buckets * 2);
+	old_ti = ovsl_dereference(flow_table->ti);
+	new_ti = table_instance_alloc(TBL_MIN_BUCKETS);
+	if (!new_ti)
+		return -ENOMEM;
+
+	rcu_assign_pointer(flow_table->ti, new_ti);
+	flow_table->last_rehash = jiffies;
+	flow_table->count = 0;
+
+	table_instance_destroy(old_ti, true);
+	return 0;
 }
 
 static u32 flow_hash(const struct sw_flow_key *key, int key_start,
@@ -367,7 +382,7 @@ bool ovs_flow_cmp_unmasked_key(const struct sw_flow *flow,
 	return cmp_key(&flow->unmasked_key, key, key_start, key_end);
 }
 
-static struct sw_flow *masked_flow_lookup(struct flow_table *table,
+static struct sw_flow *masked_flow_lookup(struct table_instance *ti,
 					  const struct sw_flow_key *unmasked,
 					  struct sw_flow_mask *mask)
 {
@@ -380,8 +395,8 @@ static struct sw_flow *masked_flow_lookup(struct flow_table *table,
 
 	ovs_flow_mask_key(&masked_key, unmasked, mask);
 	hash = flow_hash(&masked_key, key_start, key_end);
-	head = find_bucket(table, hash);
-	hlist_for_each_entry_rcu(flow, head, hash_node[table->node_ver]) {
+	head = find_bucket(ti, hash);
+	hlist_for_each_entry_rcu(flow, head, hash_node[ti->node_ver]) {
 		if (flow->mask == mask &&
 		    flow_cmp_masked_key(flow, &masked_key,
 					  key_start, key_end))
@@ -393,29 +408,55 @@ static struct sw_flow *masked_flow_lookup(struct flow_table *table,
 struct sw_flow *ovs_flow_tbl_lookup(struct flow_table *tbl,
 				    const struct sw_flow_key *key)
 {
-	struct sw_flow *flow = NULL;
+	struct table_instance *ti = rcu_dereference(tbl->ti);
 	struct sw_flow_mask *mask;
+	struct sw_flow *flow;
 
-	list_for_each_entry_rcu(mask, tbl->mask_list, list) {
-		flow = masked_flow_lookup(tbl, key, mask);
+	list_for_each_entry_rcu(mask, &tbl->mask_list, list) {
+		flow = masked_flow_lookup(ti, key, mask);
 		if (flow)  /* Found */
-			break;
+			return flow;
 	}
+	return NULL;
+}
 
-	return flow;
+static struct table_instance *table_instance_expand(struct table_instance *ti)
+{
+	return table_instance_rehash(ti, ti->n_buckets * 2);
 }
 
 void ovs_flow_tbl_insert(struct flow_table *table, struct sw_flow *flow)
 {
+	struct table_instance *ti = NULL;
+	struct table_instance *new_ti = NULL;
+
+	ti = ovsl_dereference(table->ti);
+
+	/* Expand table, if necessary, to make room. */
+	if (table->count > ti->n_buckets)
+		new_ti = table_instance_expand(ti);
+	else if (time_after(jiffies, table->last_rehash + REHASH_INTERVAL))
+		new_ti = table_instance_rehash(ti, ti->n_buckets);
+
+	if (new_ti && !IS_ERR(new_ti)) {
+		rcu_assign_pointer(table->ti, new_ti);
+		ovs_flow_tbl_destroy(table, true);
+		ti = ovsl_dereference(table->ti);
+		table->last_rehash = jiffies;
+	}
+
 	flow->hash = flow_hash(&flow->key, flow->mask->range.start,
 			flow->mask->range.end);
-	__tbl_insert(table, flow);
+	table_instance_insert(ti, flow);
+	table->count++;
 }
 
 void ovs_flow_tbl_remove(struct flow_table *table, struct sw_flow *flow)
 {
+	struct table_instance *ti = ovsl_dereference(table->ti);
+
 	BUG_ON(table->count == 0);
-	hlist_del_rcu(&flow->hash_node[table->node_ver]);
+	hlist_del_rcu(&flow->hash_node[ti->node_ver]);
 	table->count--;
 }
 
@@ -475,7 +516,7 @@ struct sw_flow_mask *ovs_sw_flow_mask_find(const struct flow_table *tbl,
 {
 	struct list_head *ml;
 
-	list_for_each(ml, tbl->mask_list) {
+	list_for_each(ml, &tbl->mask_list) {
 		struct sw_flow_mask *m;
 		m = container_of(ml, struct sw_flow_mask, list);
 		if (mask_equal(mask, m))
@@ -492,7 +533,7 @@ struct sw_flow_mask *ovs_sw_flow_mask_find(const struct flow_table *tbl,
  */
 void ovs_sw_flow_mask_insert(struct flow_table *tbl, struct sw_flow_mask *mask)
 {
-	list_add_rcu(&mask->list, tbl->mask_list);
+	list_add_rcu(&mask->list, &tbl->mask_list);
 }
 
 /* Initializes the flow module.
diff --git a/net/openvswitch/flow_table.h b/net/openvswitch/flow_table.h
index d7a114457cde..5d1abe566c46 100644
--- a/net/openvswitch/flow_table.h
+++ b/net/openvswitch/flow_table.h
@@ -36,42 +36,36 @@
 
 #include "flow.h"
 
-#define TBL_MIN_BUCKETS		1024
-
-struct flow_table {
+struct table_instance {
 	struct flex_array *buckets;
-	unsigned int count, n_buckets;
+	unsigned int n_buckets;
 	struct rcu_head rcu;
-	struct list_head *mask_list;
 	int node_ver;
 	u32 hash_seed;
 	bool keep_flows;
 };
 
+struct flow_table {
+	struct table_instance __rcu *ti;
+	struct list_head mask_list;
+	unsigned long last_rehash;
+	unsigned int count;
+};
+
 int ovs_flow_init(void);
 void ovs_flow_exit(void);
 
 struct sw_flow *ovs_flow_alloc(void);
 void ovs_flow_free(struct sw_flow *, bool deferred);
 
-static inline int ovs_flow_tbl_count(struct flow_table *table)
-{
-	return table->count;
-}
-
-static inline int ovs_flow_tbl_need_to_expand(struct flow_table *table)
-{
-	return (table->count > table->n_buckets);
-}
-
-struct flow_table *ovs_flow_tbl_alloc(int new_size);
-struct flow_table *ovs_flow_tbl_expand(struct flow_table *table);
-struct flow_table *ovs_flow_tbl_rehash(struct flow_table *table);
+int ovs_flow_tbl_init(struct flow_table *);
+int ovs_flow_tbl_count(struct flow_table *table);
 void ovs_flow_tbl_destroy(struct flow_table *table, bool deferred);
+int ovs_flow_tbl_flush(struct flow_table *flow_table);
 
 void ovs_flow_tbl_insert(struct flow_table *table, struct sw_flow *flow);
 void ovs_flow_tbl_remove(struct flow_table *table, struct sw_flow *flow);
-struct sw_flow *ovs_flow_tbl_dump_next(struct flow_table *table,
+struct sw_flow *ovs_flow_tbl_dump_next(struct table_instance *table,
 				       u32 *bucket, u32 *idx);
 struct sw_flow *ovs_flow_tbl_lookup(struct flow_table *,
 				    const struct sw_flow_key *);
-- 
cgit 


From 618ed0c805b64c820279f50732110ab873221c3b Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Fri, 4 Oct 2013 00:17:42 -0700
Subject: openvswitch: Simplify mega-flow APIs.

Hides mega-flow implementation in flow_table.c rather than
datapath.c.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
---
 net/openvswitch/datapath.c   |  27 +++------
 net/openvswitch/flow_table.c | 138 +++++++++++++++++++++++++------------------
 net/openvswitch/flow_table.h |  12 +---
 3 files changed, 89 insertions(+), 88 deletions(-)

diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 60b9be3b9477..cf270973095d 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -161,7 +161,7 @@ static void destroy_dp_rcu(struct rcu_head *rcu)
 {
 	struct datapath *dp = container_of(rcu, struct datapath, rcu);
 
-	ovs_flow_tbl_destroy(&dp->table, false);
+	ovs_flow_tbl_destroy(&dp->table);
 	free_percpu(dp->stats_percpu);
 	release_net(ovs_dp_get_net(dp));
 	kfree(dp->ports);
@@ -795,8 +795,6 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 	/* Check if this is a duplicate flow */
 	flow = ovs_flow_tbl_lookup(&dp->table, &key);
 	if (!flow) {
-		struct sw_flow_mask *mask_p;
-
 		/* Bail out if we're not allowed to create a new flow. */
 		error = -ENOENT;
 		if (info->genlhdr->cmd == OVS_FLOW_CMD_SET)
@@ -812,25 +810,14 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 
 		flow->key = masked_key;
 		flow->unmasked_key = key;
-
-		/* Make sure mask is unique in the system */
-		mask_p = ovs_sw_flow_mask_find(&dp->table, &mask);
-		if (!mask_p) {
-			/* Allocate a new mask if none exsits. */
-			mask_p = ovs_sw_flow_mask_alloc();
-			if (!mask_p)
-				goto err_flow_free;
-			mask_p->key = mask.key;
-			mask_p->range = mask.range;
-			ovs_sw_flow_mask_insert(&dp->table, mask_p);
-		}
-
-		ovs_sw_flow_mask_add_ref(mask_p);
-		flow->mask = mask_p;
 		rcu_assign_pointer(flow->sf_acts, acts);
 
 		/* Put flow in bucket. */
-		ovs_flow_tbl_insert(&dp->table, flow);
+		error = ovs_flow_tbl_insert(&dp->table, flow, &mask);
+		if (error) {
+			acts = NULL;
+			goto err_flow_free;
+		}
 
 		reply = ovs_flow_cmd_build_info(flow, dp, info->snd_portid,
 						info->snd_seq, OVS_FLOW_CMD_NEW);
@@ -1236,7 +1223,7 @@ err_destroy_ports_array:
 err_destroy_percpu:
 	free_percpu(dp->stats_percpu);
 err_destroy_table:
-	ovs_flow_tbl_destroy(&dp->table, false);
+	ovs_flow_tbl_destroy(&dp->table);
 err_free_dp:
 	release_net(ovs_dp_get_net(dp));
 	kfree(dp);
diff --git a/net/openvswitch/flow_table.c b/net/openvswitch/flow_table.c
index 1c7e7732ed4c..036e019f8c3c 100644
--- a/net/openvswitch/flow_table.c
+++ b/net/openvswitch/flow_table.c
@@ -128,12 +128,36 @@ static void rcu_free_flow_callback(struct rcu_head *rcu)
 	flow_free(flow);
 }
 
+static void rcu_free_sw_flow_mask_cb(struct rcu_head *rcu)
+{
+	struct sw_flow_mask *mask = container_of(rcu, struct sw_flow_mask, rcu);
+
+	kfree(mask);
+}
+
+static void flow_mask_del_ref(struct sw_flow_mask *mask, bool deferred)
+{
+	if (!mask)
+		return;
+
+	BUG_ON(!mask->ref_count);
+	mask->ref_count--;
+
+	if (!mask->ref_count) {
+		list_del_rcu(&mask->list);
+		if (deferred)
+			call_rcu(&mask->rcu, rcu_free_sw_flow_mask_cb);
+		else
+			kfree(mask);
+	}
+}
+
 void ovs_flow_free(struct sw_flow *flow, bool deferred)
 {
 	if (!flow)
 		return;
 
-	ovs_sw_flow_mask_del_ref(flow->mask, deferred);
+	flow_mask_del_ref(flow->mask, deferred);
 
 	if (deferred)
 		call_rcu(&flow->rcu, rcu_free_flow_callback);
@@ -225,11 +249,11 @@ static void table_instance_destroy(struct table_instance *ti, bool deferred)
 		__table_instance_destroy(ti);
 }
 
-void ovs_flow_tbl_destroy(struct flow_table *table, bool deferred)
+void ovs_flow_tbl_destroy(struct flow_table *table)
 {
 	struct table_instance *ti = ovsl_dereference(table->ti);
 
-	table_instance_destroy(ti, deferred);
+	table_instance_destroy(ti, false);
 }
 
 struct sw_flow *ovs_flow_tbl_dump_next(struct table_instance *ti,
@@ -304,7 +328,7 @@ static struct table_instance *table_instance_rehash(struct table_instance *ti,
 
 	new_ti = table_instance_alloc(n_buckets);
 	if (!new_ti)
-		return ERR_PTR(-ENOMEM);
+		return NULL;
 
 	flow_table_copy_flows(ti, new_ti);
 
@@ -425,32 +449,6 @@ static struct table_instance *table_instance_expand(struct table_instance *ti)
 	return table_instance_rehash(ti, ti->n_buckets * 2);
 }
 
-void ovs_flow_tbl_insert(struct flow_table *table, struct sw_flow *flow)
-{
-	struct table_instance *ti = NULL;
-	struct table_instance *new_ti = NULL;
-
-	ti = ovsl_dereference(table->ti);
-
-	/* Expand table, if necessary, to make room. */
-	if (table->count > ti->n_buckets)
-		new_ti = table_instance_expand(ti);
-	else if (time_after(jiffies, table->last_rehash + REHASH_INTERVAL))
-		new_ti = table_instance_rehash(ti, ti->n_buckets);
-
-	if (new_ti && !IS_ERR(new_ti)) {
-		rcu_assign_pointer(table->ti, new_ti);
-		ovs_flow_tbl_destroy(table, true);
-		ti = ovsl_dereference(table->ti);
-		table->last_rehash = jiffies;
-	}
-
-	flow->hash = flow_hash(&flow->key, flow->mask->range.start,
-			flow->mask->range.end);
-	table_instance_insert(ti, flow);
-	table->count++;
-}
-
 void ovs_flow_tbl_remove(struct flow_table *table, struct sw_flow *flow)
 {
 	struct table_instance *ti = ovsl_dereference(table->ti);
@@ -460,7 +458,7 @@ void ovs_flow_tbl_remove(struct flow_table *table, struct sw_flow *flow)
 	table->count--;
 }
 
-struct sw_flow_mask *ovs_sw_flow_mask_alloc(void)
+static struct sw_flow_mask *mask_alloc(void)
 {
 	struct sw_flow_mask *mask;
 
@@ -471,35 +469,11 @@ struct sw_flow_mask *ovs_sw_flow_mask_alloc(void)
 	return mask;
 }
 
-void ovs_sw_flow_mask_add_ref(struct sw_flow_mask *mask)
+static void mask_add_ref(struct sw_flow_mask *mask)
 {
 	mask->ref_count++;
 }
 
-static void rcu_free_sw_flow_mask_cb(struct rcu_head *rcu)
-{
-	struct sw_flow_mask *mask = container_of(rcu, struct sw_flow_mask, rcu);
-
-	kfree(mask);
-}
-
-void ovs_sw_flow_mask_del_ref(struct sw_flow_mask *mask, bool deferred)
-{
-	if (!mask)
-		return;
-
-	BUG_ON(!mask->ref_count);
-	mask->ref_count--;
-
-	if (!mask->ref_count) {
-		list_del_rcu(&mask->list);
-		if (deferred)
-			call_rcu(&mask->rcu, rcu_free_sw_flow_mask_cb);
-		else
-			kfree(mask);
-	}
-}
-
 static bool mask_equal(const struct sw_flow_mask *a,
 		       const struct sw_flow_mask *b)
 {
@@ -511,7 +485,7 @@ static bool mask_equal(const struct sw_flow_mask *a,
 		&& (memcmp(a_, b_, range_n_bytes(&a->range)) == 0);
 }
 
-struct sw_flow_mask *ovs_sw_flow_mask_find(const struct flow_table *tbl,
+static struct sw_flow_mask *flow_mask_find(const struct flow_table *tbl,
 					   const struct sw_flow_mask *mask)
 {
 	struct list_head *ml;
@@ -531,9 +505,55 @@ struct sw_flow_mask *ovs_sw_flow_mask_find(const struct flow_table *tbl,
  * The caller needs to make sure that 'mask' is not the same
  * as any masks that are already on the list.
  */
-void ovs_sw_flow_mask_insert(struct flow_table *tbl, struct sw_flow_mask *mask)
+static int flow_mask_insert(struct flow_table *tbl, struct sw_flow *flow,
+			    struct sw_flow_mask *new)
+{
+	struct sw_flow_mask *mask;
+	mask = flow_mask_find(tbl, new);
+	if (!mask) {
+		/* Allocate a new mask if none exsits. */
+		mask = mask_alloc();
+		if (!mask)
+			return -ENOMEM;
+		mask->key = new->key;
+		mask->range = new->range;
+		list_add_rcu(&mask->list, &tbl->mask_list);
+	}
+
+	mask_add_ref(mask);
+	flow->mask = mask;
+	return 0;
+}
+
+int ovs_flow_tbl_insert(struct flow_table *table, struct sw_flow *flow,
+			struct sw_flow_mask *mask)
 {
-	list_add_rcu(&mask->list, &tbl->mask_list);
+	struct table_instance *new_ti = NULL;
+	struct table_instance *ti;
+	int err;
+
+	err = flow_mask_insert(table, flow, mask);
+	if (err)
+		return err;
+
+	flow->hash = flow_hash(&flow->key, flow->mask->range.start,
+			flow->mask->range.end);
+	ti = ovsl_dereference(table->ti);
+	table_instance_insert(ti, flow);
+	table->count++;
+
+	/* Expand table, if necessary, to make room. */
+	if (table->count > ti->n_buckets)
+		new_ti = table_instance_expand(ti);
+	else if (time_after(jiffies, table->last_rehash + REHASH_INTERVAL))
+		new_ti = table_instance_rehash(ti, ti->n_buckets);
+
+	if (new_ti) {
+		rcu_assign_pointer(table->ti, new_ti);
+		table_instance_destroy(ti, true);
+		table->last_rehash = jiffies;
+	}
+	return 0;
 }
 
 /* Initializes the flow module.
diff --git a/net/openvswitch/flow_table.h b/net/openvswitch/flow_table.h
index 5d1abe566c46..4db5f78b6f81 100644
--- a/net/openvswitch/flow_table.h
+++ b/net/openvswitch/flow_table.h
@@ -60,10 +60,11 @@ void ovs_flow_free(struct sw_flow *, bool deferred);
 
 int ovs_flow_tbl_init(struct flow_table *);
 int ovs_flow_tbl_count(struct flow_table *table);
-void ovs_flow_tbl_destroy(struct flow_table *table, bool deferred);
+void ovs_flow_tbl_destroy(struct flow_table *table);
 int ovs_flow_tbl_flush(struct flow_table *flow_table);
 
-void ovs_flow_tbl_insert(struct flow_table *table, struct sw_flow *flow);
+int ovs_flow_tbl_insert(struct flow_table *table, struct sw_flow *flow,
+			struct sw_flow_mask *mask);
 void ovs_flow_tbl_remove(struct flow_table *table, struct sw_flow *flow);
 struct sw_flow *ovs_flow_tbl_dump_next(struct table_instance *table,
 				       u32 *bucket, u32 *idx);
@@ -73,13 +74,6 @@ struct sw_flow *ovs_flow_tbl_lookup(struct flow_table *,
 bool ovs_flow_cmp_unmasked_key(const struct sw_flow *flow,
 			       struct sw_flow_match *match);
 
-struct sw_flow_mask *ovs_sw_flow_mask_alloc(void);
-void ovs_sw_flow_mask_add_ref(struct sw_flow_mask *);
-void ovs_sw_flow_mask_del_ref(struct sw_flow_mask *, bool deferred);
-void ovs_sw_flow_mask_insert(struct flow_table *, struct sw_flow_mask *);
-struct sw_flow_mask *ovs_sw_flow_mask_find(const struct flow_table *,
-					   const struct sw_flow_mask *);
 void ovs_flow_mask_key(struct sw_flow_key *dst, const struct sw_flow_key *src,
 		       const struct sw_flow_mask *mask);
-
 #endif /* flow_table.h */
-- 
cgit 


From cf154b7e22e9f6714f0a806c023c329b890132a2 Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Fri, 20 Sep 2013 09:57:37 +0200
Subject: ARM: pull in <asm/simd.h> from asm-generic

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
 arch/arm/include/asm/Kbuild | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild
index d3db39860b9c..6577b8aeb711 100644
--- a/arch/arm/include/asm/Kbuild
+++ b/arch/arm/include/asm/Kbuild
@@ -24,6 +24,7 @@ generic-y += sembuf.h
 generic-y += serial.h
 generic-y += shmbuf.h
 generic-y += siginfo.h
+generic-y += simd.h
 generic-y += sizes.h
 generic-y += socket.h
 generic-y += sockios.h
-- 
cgit 


From 5ce26f3b5ae8fafdd28375a004f7b8e924e9bacb Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Sun, 15 Sep 2013 17:10:43 +0200
Subject: ARM: move AES typedefs and function prototypes to separate header

Put the struct definitions for AES keys and the asm function prototypes in a
separate header and export the asm functions from the module.
This allows other drivers to use them directly.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
 arch/arm/crypto/aes_glue.c | 22 ++++++----------------
 arch/arm/crypto/aes_glue.h | 19 +++++++++++++++++++
 2 files changed, 25 insertions(+), 16 deletions(-)
 create mode 100644 arch/arm/crypto/aes_glue.h

diff --git a/arch/arm/crypto/aes_glue.c b/arch/arm/crypto/aes_glue.c
index 59f7877ead6a..3003fa1f6fb4 100644
--- a/arch/arm/crypto/aes_glue.c
+++ b/arch/arm/crypto/aes_glue.c
@@ -6,22 +6,12 @@
 #include <linux/crypto.h>
 #include <crypto/aes.h>
 
-#define AES_MAXNR 14
+#include "aes_glue.h"
 
-typedef struct {
-	unsigned int rd_key[4 *(AES_MAXNR + 1)];
-	int rounds;
-} AES_KEY;
-
-struct AES_CTX {
-	AES_KEY enc_key;
-	AES_KEY dec_key;
-};
-
-asmlinkage void AES_encrypt(const u8 *in, u8 *out, AES_KEY *ctx);
-asmlinkage void AES_decrypt(const u8 *in, u8 *out, AES_KEY *ctx);
-asmlinkage int private_AES_set_decrypt_key(const unsigned char *userKey, const int bits, AES_KEY *key);
-asmlinkage int private_AES_set_encrypt_key(const unsigned char *userKey, const int bits, AES_KEY *key);
+EXPORT_SYMBOL(AES_encrypt);
+EXPORT_SYMBOL(AES_decrypt);
+EXPORT_SYMBOL(private_AES_set_encrypt_key);
+EXPORT_SYMBOL(private_AES_set_decrypt_key);
 
 static void aes_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)
 {
@@ -81,7 +71,7 @@ static struct crypto_alg aes_alg = {
 		.cipher	= {
 			.cia_min_keysize	= AES_MIN_KEY_SIZE,
 			.cia_max_keysize	= AES_MAX_KEY_SIZE,
-			.cia_setkey			= aes_set_key,
+			.cia_setkey		= aes_set_key,
 			.cia_encrypt		= aes_encrypt,
 			.cia_decrypt		= aes_decrypt
 		}
diff --git a/arch/arm/crypto/aes_glue.h b/arch/arm/crypto/aes_glue.h
new file mode 100644
index 000000000000..cca3e51eb606
--- /dev/null
+++ b/arch/arm/crypto/aes_glue.h
@@ -0,0 +1,19 @@
+
+#define AES_MAXNR 14
+
+struct AES_KEY {
+	unsigned int rd_key[4 * (AES_MAXNR + 1)];
+	int rounds;
+};
+
+struct AES_CTX {
+	struct AES_KEY enc_key;
+	struct AES_KEY dec_key;
+};
+
+asmlinkage void AES_encrypt(const u8 *in, u8 *out, struct AES_KEY *ctx);
+asmlinkage void AES_decrypt(const u8 *in, u8 *out, struct AES_KEY *ctx);
+asmlinkage int private_AES_set_decrypt_key(const unsigned char *userKey,
+					   const int bits, struct AES_KEY *key);
+asmlinkage int private_AES_set_encrypt_key(const unsigned char *userKey,
+					   const int bits, struct AES_KEY *key);
-- 
cgit 


From 354cc40e3b0981c38ba2ce2964954480e6c03c37 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Tue, 1 Oct 2013 07:22:15 -0700
Subject: tools/perf: Fix sorting for 64bit entries

Some of the node comparisons in hist.c dropped the upper
32bit by using an int variable to store the compare
result. This broke various 64bit fields, causing
incorrect collapsing (found for the TSX transaction field)

Just use int64_t always.

Acked-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1380637335-30110-1-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/util/hist.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 9ff6cf3e9a99..97dc2808885d 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -346,7 +346,7 @@ static struct hist_entry *add_hist_entry(struct hists *hists,
 	struct rb_node **p;
 	struct rb_node *parent = NULL;
 	struct hist_entry *he;
-	int cmp;
+	int64_t cmp;
 
 	p = &hists->entries_in->rb_node;
 
@@ -884,7 +884,7 @@ static struct hist_entry *hists__add_dummy_entry(struct hists *hists,
 	struct rb_node **p;
 	struct rb_node *parent = NULL;
 	struct hist_entry *he;
-	int cmp;
+	int64_t cmp;
 
 	if (sort__need_collapse)
 		root = &hists->entries_collapsed;
-- 
cgit 


From 723478c8a471403c53cf144999701f6e0c4bbd11 Mon Sep 17 00:00:00 2001
From: Knut Petersen <Knut_Petersen@t-online.de>
Date: Wed, 25 Sep 2013 14:29:37 +0200
Subject: perf: Enforce 1 as lower limit for perf_event_max_sample_rate

/proc/sys/kernel/perf_event_max_sample_rate will accept
negative values as well as 0.

Negative values are unreasonable, and 0 causes a
divide by zero exception in perf_proc_update_handler.

This patch enforces a lower limit of 1.

Signed-off-by: Knut Petersen <Knut_Petersen@t-online.de>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/5242DB0C.4070005@t-online.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/events/core.c | 2 +-
 kernel/sysctl.c      | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index d49a9d29334c..b25d65ce7106 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -193,7 +193,7 @@ int perf_proc_update_handler(struct ctl_table *table, int write,
 		void __user *buffer, size_t *lenp,
 		loff_t *ppos)
 {
-	int ret = proc_dointvec(table, write, buffer, lenp, ppos);
+	int ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
 
 	if (ret || !write)
 		return ret;
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index b2f06f3c6a3f..2a9db916c3f5 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1049,6 +1049,7 @@ static struct ctl_table kern_table[] = {
 		.maxlen		= sizeof(sysctl_perf_event_sample_rate),
 		.mode		= 0644,
 		.proc_handler	= perf_proc_update_handler,
+		.extra1		= &one,
 	},
 	{
 		.procname	= "perf_cpu_time_max_percent",
-- 
cgit 


From 4cabc3d1cb6a46f581a2628d1d11c483d5f300e5 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Wed, 21 Aug 2013 16:47:26 -0700
Subject: tools/perf/stat: Add perf stat --transaction

Add support to perf stat to print the basic transactional execution statistics:
Total cycles, Cycles in Transaction, Cycles in aborted transsactions
using the in_tx and in_tx_checkpoint qualifiers.
Transaction Starts and Elision Starts, to compute the average transaction
length.

This is a reasonable overview over the success of the transactions.

Also support architectures that have a transaction aborted cycles
counter like POWER8. Since that is awkward to handle in the kernel
abstract handle both cases here.

Enable with a new --transaction / -T option.

This requires measuring these events in a group, since they depend on each
other.

This is implemented by using TM sysfs events exported by the kernel

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Arnaldo Carvalho de Melo <acme@infradead.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1377128846-977-5-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/Documentation/perf-stat.txt |   5 ++
 tools/perf/builtin-stat.c              | 144 ++++++++++++++++++++++++++++++++-
 tools/perf/util/evsel.h                |   6 ++
 tools/perf/util/pmu.c                  |  16 ++++
 tools/perf/util/pmu.h                  |   1 +
 5 files changed, 171 insertions(+), 1 deletion(-)

diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt
index 73c9759005a3..80c7da6732f2 100644
--- a/tools/perf/Documentation/perf-stat.txt
+++ b/tools/perf/Documentation/perf-stat.txt
@@ -137,6 +137,11 @@ core number and the number of online logical processors on that physical process
 After starting the program, wait msecs before measuring. This is useful to
 filter out the startup phase of the program, which is often very different.
 
+-T::
+--transaction::
+
+Print statistics of transactional execution if supported.
+
 EXAMPLES
 --------
 
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index f686d5ff594e..cc7efee9d301 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -46,6 +46,7 @@
 #include "util/util.h"
 #include "util/parse-options.h"
 #include "util/parse-events.h"
+#include "util/pmu.h"
 #include "util/event.h"
 #include "util/evlist.h"
 #include "util/evsel.h"
@@ -70,6 +71,41 @@ static void print_counter_aggr(struct perf_evsel *counter, char *prefix);
 static void print_counter(struct perf_evsel *counter, char *prefix);
 static void print_aggr(char *prefix);
 
+/* Default events used for perf stat -T */
+static const char * const transaction_attrs[] = {
+	"task-clock",
+	"{"
+	"instructions,"
+	"cycles,"
+	"cpu/cycles-t/,"
+	"cpu/tx-start/,"
+	"cpu/el-start/,"
+	"cpu/cycles-ct/"
+	"}"
+};
+
+/* More limited version when the CPU does not have all events. */
+static const char * const transaction_limited_attrs[] = {
+	"task-clock",
+	"{"
+	"instructions,"
+	"cycles,"
+	"cpu/cycles-t/,"
+	"cpu/tx-start/"
+	"}"
+};
+
+/* must match transaction_attrs and the beginning limited_attrs */
+enum {
+	T_TASK_CLOCK,
+	T_INSTRUCTIONS,
+	T_CYCLES,
+	T_CYCLES_IN_TX,
+	T_TRANSACTION_START,
+	T_ELISION_START,
+	T_CYCLES_IN_TX_CP,
+};
+
 static struct perf_evlist	*evsel_list;
 
 static struct perf_target	target = {
@@ -90,6 +126,7 @@ static enum aggr_mode		aggr_mode			= AGGR_GLOBAL;
 static volatile pid_t		child_pid			= -1;
 static bool			null_run			=  false;
 static int			detailed_run			=  0;
+static bool			transaction_run;
 static bool			big_num				=  true;
 static int			big_num_opt			=  -1;
 static const char		*csv_sep			= NULL;
@@ -214,7 +251,10 @@ static struct stats runtime_l1_icache_stats[MAX_NR_CPUS];
 static struct stats runtime_ll_cache_stats[MAX_NR_CPUS];
 static struct stats runtime_itlb_cache_stats[MAX_NR_CPUS];
 static struct stats runtime_dtlb_cache_stats[MAX_NR_CPUS];
+static struct stats runtime_cycles_in_tx_stats[MAX_NR_CPUS];
 static struct stats walltime_nsecs_stats;
+static struct stats runtime_transaction_stats[MAX_NR_CPUS];
+static struct stats runtime_elision_stats[MAX_NR_CPUS];
 
 static void perf_stat__reset_stats(struct perf_evlist *evlist)
 {
@@ -236,6 +276,11 @@ static void perf_stat__reset_stats(struct perf_evlist *evlist)
 	memset(runtime_ll_cache_stats, 0, sizeof(runtime_ll_cache_stats));
 	memset(runtime_itlb_cache_stats, 0, sizeof(runtime_itlb_cache_stats));
 	memset(runtime_dtlb_cache_stats, 0, sizeof(runtime_dtlb_cache_stats));
+	memset(runtime_cycles_in_tx_stats, 0,
+			sizeof(runtime_cycles_in_tx_stats));
+	memset(runtime_transaction_stats, 0,
+		sizeof(runtime_transaction_stats));
+	memset(runtime_elision_stats, 0, sizeof(runtime_elision_stats));
 	memset(&walltime_nsecs_stats, 0, sizeof(walltime_nsecs_stats));
 }
 
@@ -274,6 +319,29 @@ static inline int nsec_counter(struct perf_evsel *evsel)
 	return 0;
 }
 
+static struct perf_evsel *nth_evsel(int n)
+{
+	static struct perf_evsel **array;
+	static int array_len;
+	struct perf_evsel *ev;
+	int j;
+
+	/* Assumes this only called when evsel_list does not change anymore. */
+	if (!array) {
+		list_for_each_entry(ev, &evsel_list->entries, node)
+			array_len++;
+		array = malloc(array_len * sizeof(void *));
+		if (!array)
+			exit(ENOMEM);
+		j = 0;
+		list_for_each_entry(ev, &evsel_list->entries, node)
+			array[j++] = ev;
+	}
+	if (n < array_len)
+		return array[n];
+	return NULL;
+}
+
 /*
  * Update various tracking values we maintain to print
  * more semantic information such as miss/hit ratios,
@@ -285,6 +353,15 @@ static void update_shadow_stats(struct perf_evsel *counter, u64 *count)
 		update_stats(&runtime_nsecs_stats[0], count[0]);
 	else if (perf_evsel__match(counter, HARDWARE, HW_CPU_CYCLES))
 		update_stats(&runtime_cycles_stats[0], count[0]);
+	else if (transaction_run &&
+		 perf_evsel__cmp(counter, nth_evsel(T_CYCLES_IN_TX)))
+		update_stats(&runtime_cycles_in_tx_stats[0], count[0]);
+	else if (transaction_run &&
+		 perf_evsel__cmp(counter, nth_evsel(T_TRANSACTION_START)))
+		update_stats(&runtime_transaction_stats[0], count[0]);
+	else if (transaction_run &&
+		 perf_evsel__cmp(counter, nth_evsel(T_ELISION_START)))
+		update_stats(&runtime_elision_stats[0], count[0]);
 	else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_FRONTEND))
 		update_stats(&runtime_stalled_cycles_front_stats[0], count[0]);
 	else if (perf_evsel__match(counter, HARDWARE, HW_STALLED_CYCLES_BACKEND))
@@ -827,7 +904,7 @@ static void print_ll_cache_misses(int cpu,
 
 static void abs_printout(int cpu, int nr, struct perf_evsel *evsel, double avg)
 {
-	double total, ratio = 0.0;
+	double total, ratio = 0.0, total2;
 	const char *fmt;
 
 	if (csv_output)
@@ -923,6 +1000,43 @@ static void abs_printout(int cpu, int nr, struct perf_evsel *evsel, double avg)
 			ratio = 1.0 * avg / total;
 
 		fprintf(output, " # %8.3f GHz                    ", ratio);
+	} else if (transaction_run &&
+		   perf_evsel__cmp(evsel, nth_evsel(T_CYCLES_IN_TX))) {
+		total = avg_stats(&runtime_cycles_stats[cpu]);
+		if (total)
+			fprintf(output,
+				" #   %5.2f%% transactional cycles   ",
+				100.0 * (avg / total));
+	} else if (transaction_run &&
+		   perf_evsel__cmp(evsel, nth_evsel(T_CYCLES_IN_TX_CP))) {
+		total = avg_stats(&runtime_cycles_stats[cpu]);
+		total2 = avg_stats(&runtime_cycles_in_tx_stats[cpu]);
+		if (total2 < avg)
+			total2 = avg;
+		if (total)
+			fprintf(output,
+				" #   %5.2f%% aborted cycles         ",
+				100.0 * ((total2-avg) / total));
+	} else if (transaction_run &&
+		   perf_evsel__cmp(evsel, nth_evsel(T_TRANSACTION_START)) &&
+		   avg > 0 &&
+		   runtime_cycles_in_tx_stats[cpu].n != 0) {
+		total = avg_stats(&runtime_cycles_in_tx_stats[cpu]);
+
+		if (total)
+			ratio = total / avg;
+
+		fprintf(output, " # %8.0f cycles / transaction   ", ratio);
+	} else if (transaction_run &&
+		   perf_evsel__cmp(evsel, nth_evsel(T_ELISION_START)) &&
+		   avg > 0 &&
+		   runtime_cycles_in_tx_stats[cpu].n != 0) {
+		total = avg_stats(&runtime_cycles_in_tx_stats[cpu]);
+
+		if (total)
+			ratio = total / avg;
+
+		fprintf(output, " # %8.0f cycles / elision       ", ratio);
 	} else if (runtime_nsecs_stats[cpu].n != 0) {
 		char unit = 'M';
 
@@ -1236,6 +1350,16 @@ static int perf_stat_init_aggr_mode(void)
 	return 0;
 }
 
+static int setup_events(const char * const *attrs, unsigned len)
+{
+	unsigned i;
+
+	for (i = 0; i < len; i++) {
+		if (parse_events(evsel_list, attrs[i]))
+			return -1;
+	}
+	return 0;
+}
 
 /*
  * Add default attributes, if there were no attributes specified or
@@ -1354,6 +1478,22 @@ static int add_default_attributes(void)
 	if (null_run)
 		return 0;
 
+	if (transaction_run) {
+		int err;
+		if (pmu_have_event("cpu", "cycles-ct") &&
+		    pmu_have_event("cpu", "el-start"))
+			err = setup_events(transaction_attrs,
+					ARRAY_SIZE(transaction_attrs));
+		else
+			err = setup_events(transaction_limited_attrs,
+				 ARRAY_SIZE(transaction_limited_attrs));
+		if (err < 0) {
+			fprintf(stderr, "Cannot set up transaction events\n");
+			return -1;
+		}
+		return 0;
+	}
+
 	if (!evsel_list->nr_entries) {
 		if (perf_evlist__add_default_attrs(evsel_list, default_attrs) < 0)
 			return -1;
@@ -1388,6 +1528,8 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
 	int output_fd = 0;
 	const char *output_name	= NULL;
 	const struct option options[] = {
+	OPT_BOOLEAN('T', "transaction", &transaction_run,
+		    "hardware transaction statistics"),
 	OPT_CALLBACK('e', "event", &evsel_list, "event",
 		     "event selector. use 'perf list' to list available events",
 		     parse_events_option),
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 4a7bdc713bab..5aa68cddc7d9 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -197,6 +197,12 @@ static inline bool perf_evsel__match2(struct perf_evsel *e1,
 	       (e1->attr.config == e2->attr.config);
 }
 
+#define perf_evsel__cmp(a, b)			\
+	((a) &&					\
+	 (b) &&					\
+	 (a)->attr.type == (b)->attr.type &&	\
+	 (a)->attr.config == (b)->attr.config)
+
 int __perf_evsel__read_on_cpu(struct perf_evsel *evsel,
 			      int cpu, int thread, bool scale);
 
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index bc9d8069d376..64362fe45b71 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -637,3 +637,19 @@ void print_pmu_events(const char *event_glob, bool name_only)
 		printf("\n");
 	free(aliases);
 }
+
+bool pmu_have_event(const char *pname, const char *name)
+{
+	struct perf_pmu *pmu;
+	struct perf_pmu_alias *alias;
+
+	pmu = NULL;
+	while ((pmu = perf_pmu__scan(pmu)) != NULL) {
+		if (strcmp(pname, pmu->name))
+			continue;
+		list_for_each_entry(alias, &pmu->aliases, list)
+			if (!strcmp(alias->name, name))
+				return true;
+	}
+	return false;
+}
diff --git a/tools/perf/util/pmu.h b/tools/perf/util/pmu.h
index 6b2cbe2d4cc3..1179b26f244a 100644
--- a/tools/perf/util/pmu.h
+++ b/tools/perf/util/pmu.h
@@ -42,6 +42,7 @@ int perf_pmu__format_parse(char *dir, struct list_head *head);
 struct perf_pmu *perf_pmu__scan(struct perf_pmu *pmu);
 
 void print_pmu_events(const char *event_glob, bool name_only);
+bool pmu_have_event(const char *pname, const char *name);
 
 int perf_pmu__test(void);
 #endif /* __PMU_H */
-- 
cgit 


From fdfbbd07e91f8fe387140776f3fd94605f0c89e5 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Fri, 20 Sep 2013 07:40:39 -0700
Subject: perf: Add generic transaction flags

Add a generic qualifier for transaction events, as a new sample
type that returns a flag word. This is particularly useful
for qualifying aborts: to distinguish aborts which happen
due to asynchronous events (like conflicts caused by another
CPU) versus instructions that lead to an abort.

The tuning strategies are very different for those cases,
so it's important to distinguish them easily and early.

Since it's inconvenient and inflexible to filter for this
in the kernel we report all the events out and allow
some post processing in user space.

The flags are based on the Intel TSX events, but should be fairly
generic and mostly applicable to other HTM architectures too. In addition
to various flag words there's also reserved space to report an
program supplied abort code. For TSX this is used to distinguish specific
classes of aborts, like a lock busy abort when doing lock elision.

Flags:

Elision and generic transactions 		   (ELISION vs TRANSACTION)
(HLE vs RTM on TSX; IBM etc.  would likely only use TRANSACTION)
Aborts caused by current thread vs aborts caused by others (SYNC vs ASYNC)
Retryable transaction				   (RETRY)
Conflicts with other threads			   (CONFLICT)
Transaction write capacity overflow		   (CAPACITY WRITE)
Transaction read capacity overflow		   (CAPACITY READ)

Transactions implicitely aborted can also return an abort code.
This can be used to signal specific events to the profiler. A common
case is abort on lock busy in a RTM eliding library (code 0xff)
To handle this case we include the TSX abort code

Common example aborts in TSX would be:

- Data conflict with another thread on memory read.
                                      Flags: TRANSACTION|ASYNC|CONFLICT
- executing a WRMSR in a transaction. Flags: TRANSACTION|SYNC
- HLE transaction in user space is too large
                                      Flags: ELISION|SYNC|CAPACITY-WRITE

The only flag that is somewhat TSX specific is ELISION.

This adds the perf core glue needed for reporting the new flag word out.

v2: Add MEM/MISC
v3: Move transaction to the end
v4: Separate capacity-read/write and remove misc
v5: Remove _SAMPLE. Move abort flags to 32bit. Rename
    transaction to txn
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1379688044-14173-2-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/perf_event.h      |  5 +++++
 include/uapi/linux/perf_event.h | 25 ++++++++++++++++++++++++-
 kernel/events/core.c            |  6 ++++++
 3 files changed, 35 insertions(+), 1 deletion(-)

diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index c8ba627c1d60..2e069d1288df 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -584,6 +584,10 @@ struct perf_sample_data {
 	struct perf_regs_user		regs_user;
 	u64				stack_user_size;
 	u64				weight;
+	/*
+	 * Transaction flags for abort events:
+	 */
+	u64				txn;
 };
 
 static inline void perf_sample_data_init(struct perf_sample_data *data,
@@ -599,6 +603,7 @@ static inline void perf_sample_data_init(struct perf_sample_data *data,
 	data->stack_user_size = 0;
 	data->weight = 0;
 	data->data_src.val = 0;
+	data->txn = 0;
 }
 
 extern void perf_output_sample(struct perf_output_handle *handle,
diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h
index 009a655a5d35..da48837d617d 100644
--- a/include/uapi/linux/perf_event.h
+++ b/include/uapi/linux/perf_event.h
@@ -136,8 +136,9 @@ enum perf_event_sample_format {
 	PERF_SAMPLE_WEIGHT			= 1U << 14,
 	PERF_SAMPLE_DATA_SRC			= 1U << 15,
 	PERF_SAMPLE_IDENTIFIER			= 1U << 16,
+	PERF_SAMPLE_TRANSACTION			= 1U << 17,
 
-	PERF_SAMPLE_MAX = 1U << 17,		/* non-ABI */
+	PERF_SAMPLE_MAX = 1U << 18,		/* non-ABI */
 };
 
 /*
@@ -180,6 +181,28 @@ enum perf_sample_regs_abi {
 	PERF_SAMPLE_REGS_ABI_64		= 2,
 };
 
+/*
+ * Values for the memory transaction event qualifier, mostly for
+ * abort events. Multiple bits can be set.
+ */
+enum {
+	PERF_TXN_ELISION        = (1 << 0), /* From elision */
+	PERF_TXN_TRANSACTION    = (1 << 1), /* From transaction */
+	PERF_TXN_SYNC           = (1 << 2), /* Instruction is related */
+	PERF_TXN_ASYNC          = (1 << 3), /* Instruction not related */
+	PERF_TXN_RETRY          = (1 << 4), /* Retry possible */
+	PERF_TXN_CONFLICT       = (1 << 5), /* Conflict abort */
+	PERF_TXN_CAPACITY_WRITE = (1 << 6), /* Capacity write abort */
+	PERF_TXN_CAPACITY_READ  = (1 << 7), /* Capacity read abort */
+
+	PERF_TXN_MAX	        = (1 << 8), /* non-ABI */
+
+	/* bits 32..63 are reserved for the abort code */
+
+	PERF_TXN_ABORT_MASK  = (0xffffffffULL << 32),
+	PERF_TXN_ABORT_SHIFT = 32,
+};
+
 /*
  * The format of the data returned by read() on a perf event fd,
  * as specified by attr.read_format:
diff --git a/kernel/events/core.c b/kernel/events/core.c
index b25d65ce7106..c716385f6483 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -1201,6 +1201,9 @@ static void perf_event__header_size(struct perf_event *event)
 	if (sample_type & PERF_SAMPLE_DATA_SRC)
 		size += sizeof(data->data_src.val);
 
+	if (sample_type & PERF_SAMPLE_TRANSACTION)
+		size += sizeof(data->txn);
+
 	event->header_size = size;
 }
 
@@ -4572,6 +4575,9 @@ void perf_output_sample(struct perf_output_handle *handle,
 	if (sample_type & PERF_SAMPLE_DATA_SRC)
 		perf_output_put(handle, data->data_src.val);
 
+	if (sample_type & PERF_SAMPLE_TRANSACTION)
+		perf_output_put(handle, data->txn);
+
 	if (!event->attr.watermark) {
 		int wakeup_events = event->attr.wakeup_events;
 
-- 
cgit 


From a405bad5ad2086766ce320b16a56952e013327f8 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Fri, 20 Sep 2013 07:40:40 -0700
Subject: perf/x86: Add Haswell specific transaction flag reporting

In the PEBS handler report the transaction flags using the new
generic transaction flags facility. Most of them come from
the "tsx_tuning" field in PEBSv2, but the abort code is derived
from the RAX register reported in the PEBS record.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1379688044-14173-3-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/cpu/perf_event_intel_ds.c | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c
index 07d9a052ee72..32e9ed81cd00 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_ds.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c
@@ -206,6 +206,8 @@ union hsw_tsx_tuning {
 	u64	    value;
 };
 
+#define PEBS_HSW_TSX_FLAGS	0xff00000000ULL
+
 void init_debug_store_on_cpu(int cpu)
 {
 	struct debug_store *ds = per_cpu(cpu_hw_events, cpu).ds;
@@ -807,6 +809,16 @@ static inline u64 intel_hsw_weight(struct pebs_record_hsw *pebs)
 	return 0;
 }
 
+static inline u64 intel_hsw_transaction(struct pebs_record_hsw *pebs)
+{
+	u64 txn = (pebs->tsx_tuning & PEBS_HSW_TSX_FLAGS) >> 32;
+
+	/* For RTM XABORTs also log the abort code from AX */
+	if ((txn & PERF_TXN_TRANSACTION) && (pebs->ax & 1))
+		txn |= ((pebs->ax >> 24) & 0xff) << PERF_TXN_ABORT_SHIFT;
+	return txn;
+}
+
 static void __intel_pmu_pebs_event(struct perf_event *event,
 				   struct pt_regs *iregs, void *__pebs)
 {
@@ -885,10 +897,14 @@ static void __intel_pmu_pebs_event(struct perf_event *event,
 	    x86_pmu.intel_cap.pebs_format >= 1)
 		data.addr = pebs->dla;
 
-	/* Only set the TSX weight when no memory weight was requested. */
-	if ((event->attr.sample_type & PERF_SAMPLE_WEIGHT) && !fll &&
-	    (x86_pmu.intel_cap.pebs_format >= 2))
-		data.weight = intel_hsw_weight(pebs);
+	if (x86_pmu.intel_cap.pebs_format >= 2) {
+		/* Only set the TSX weight when no memory weight. */
+		if ((event->attr.sample_type & PERF_SAMPLE_WEIGHT) && !fll)
+			data.weight = intel_hsw_weight(pebs);
+
+		if (event->attr.sample_type & PERF_SAMPLE_TRANSACTION)
+			data.txn = intel_hsw_transaction(pebs);
+	}
 
 	if (has_branch_stack(event))
 		data.br_stack = &cpuc->lbr_stack;
-- 
cgit 


From f5d05bcec409aec2c41727077ad818f7c4db005b Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Fri, 20 Sep 2013 07:40:41 -0700
Subject: tools/perf: Support sorting by in_tx or abort branch flags

Extend the perf branch sorting code to support sorting by in_tx
or abort_tx qualifiers. Also print out those qualifiers.

This also fixes up some of the existing sort key documentation.

We do not support no_tx here, because it's simply not showing
the in_tx flag.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1379688044-14173-4-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/Documentation/perf-report.txt |  4 ++-
 tools/perf/Documentation/perf-top.txt    |  3 +-
 tools/perf/builtin-report.c              |  2 +-
 tools/perf/builtin-top.c                 |  3 +-
 tools/perf/perf.h                        |  4 ++-
 tools/perf/util/hist.h                   |  2 ++
 tools/perf/util/sort.c                   | 51 ++++++++++++++++++++++++++++++++
 tools/perf/util/sort.h                   |  2 ++
 8 files changed, 66 insertions(+), 5 deletions(-)

diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 2b8097ee39d8..ae337e38cff5 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -71,7 +71,7 @@ OPTIONS
 	entries are displayed as "[other]".
 	- cpu: cpu number the task ran at the time of sample
 	- srcline: filename and line number executed at the time of sample.  The
-	DWARF debuggin info must be provided.
+	DWARF debugging info must be provided.
 
 	By default, comm, dso and symbol keys are used.
 	(i.e. --sort comm,dso,symbol)
@@ -85,6 +85,8 @@ OPTIONS
 	- symbol_from: name of function branched from
 	- symbol_to: name of function branched to
 	- mispredict: "N" for predicted branch, "Y" for mispredicted branch
+	- in_tx: branch in TSX transaction
+	- abort: TSX transaction abort.
 
 	And default sort keys are changed to comm, dso_from, symbol_from, dso_to
 	and symbol_to, see '--branch-stack'.
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index 58d6598a9686..f852eb5d988d 100644
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -112,7 +112,8 @@ Default is to monitor all CPUS.
 
 -s::
 --sort::
-	Sort by key(s): pid, comm, dso, symbol, parent, srcline, weight, local_weight.
+	Sort by key(s): pid, comm, dso, symbol, parent, srcline, weight,
+	local_weight, abort, in_tx
 
 -n::
 --show-nr-samples::
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 72eae7498c09..89b188d64ea9 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -787,7 +787,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 		   "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline,"
 		   " dso_to, dso_from, symbol_to, symbol_from, mispredict,"
 		   " weight, local_weight, mem, symbol_daddr, dso_daddr, tlb, "
-		   "snoop, locked"),
+		   "snoop, locked, abort, in_tx"),
 	OPT_BOOLEAN(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
 		    "Show sample percentage for different cpu modes"),
 	OPT_STRING('p', "parent", &parent_pattern, "regex",
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 212214162bb2..6534a37d66fe 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1103,7 +1103,8 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
 	OPT_INCR('v', "verbose", &verbose,
 		    "be more verbose (show counter open errors, etc)"),
 	OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
-		   "sort by key(s): pid, comm, dso, symbol, parent, weight, local_weight"),
+		   "sort by key(s): pid, comm, dso, symbol, parent, weight, local_weight,"
+		   " abort, in_tx"),
 	OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
 		    "Show a column with the number of samples"),
 	OPT_CALLBACK_DEFAULT('G', "call-graph", &top.record_opts,
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index cf20187eee0a..acf3d665474d 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -182,7 +182,9 @@ struct ip_callchain {
 struct branch_flags {
 	u64 mispred:1;
 	u64 predicted:1;
-	u64 reserved:62;
+	u64 in_tx:1;
+	u64 abort:1;
+	u64 reserved:60;
 };
 
 struct branch_entry {
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 1329b6b6ffe6..f743e96005f2 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -45,6 +45,8 @@ enum hist_column {
 	HISTC_CPU,
 	HISTC_SRCLINE,
 	HISTC_MISPREDICT,
+	HISTC_IN_TX,
+	HISTC_ABORT,
 	HISTC_SYMBOL_FROM,
 	HISTC_SYMBOL_TO,
 	HISTC_DSO_FROM,
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 5f118a089519..1771566858cc 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -858,6 +858,55 @@ struct sort_entry sort_mem_snoop = {
 	.se_width_idx	= HISTC_MEM_SNOOP,
 };
 
+static int64_t
+sort__abort_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+	return left->branch_info->flags.abort !=
+		right->branch_info->flags.abort;
+}
+
+static int hist_entry__abort_snprintf(struct hist_entry *self, char *bf,
+				    size_t size, unsigned int width)
+{
+	static const char *out = ".";
+
+	if (self->branch_info->flags.abort)
+		out = "A";
+	return repsep_snprintf(bf, size, "%-*s", width, out);
+}
+
+struct sort_entry sort_abort = {
+	.se_header	= "Transaction abort",
+	.se_cmp		= sort__abort_cmp,
+	.se_snprintf	= hist_entry__abort_snprintf,
+	.se_width_idx	= HISTC_ABORT,
+};
+
+static int64_t
+sort__in_tx_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+	return left->branch_info->flags.in_tx !=
+		right->branch_info->flags.in_tx;
+}
+
+static int hist_entry__in_tx_snprintf(struct hist_entry *self, char *bf,
+				    size_t size, unsigned int width)
+{
+	static const char *out = ".";
+
+	if (self->branch_info->flags.in_tx)
+		out = "T";
+
+	return repsep_snprintf(bf, size, "%-*s", width, out);
+}
+
+struct sort_entry sort_in_tx = {
+	.se_header	= "Branch in transaction",
+	.se_cmp		= sort__in_tx_cmp,
+	.se_snprintf	= hist_entry__in_tx_snprintf,
+	.se_width_idx	= HISTC_IN_TX,
+};
+
 struct sort_dimension {
 	const char		*name;
 	struct sort_entry	*entry;
@@ -888,6 +937,8 @@ static struct sort_dimension bstack_sort_dimensions[] = {
 	DIM(SORT_SYM_FROM, "symbol_from", sort_sym_from),
 	DIM(SORT_SYM_TO, "symbol_to", sort_sym_to),
 	DIM(SORT_MISPREDICT, "mispredict", sort_mispredict),
+	DIM(SORT_IN_TX, "in_tx", sort_in_tx),
+	DIM(SORT_ABORT, "abort", sort_abort),
 };
 
 #undef DIM
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 4e80dbd271e7..9dad3a0440dc 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -153,6 +153,8 @@ enum sort_type {
 	SORT_SYM_FROM,
 	SORT_SYM_TO,
 	SORT_MISPREDICT,
+	SORT_ABORT,
+	SORT_IN_TX,
 
 	/* memory mode specific sort keys */
 	__SORT_MEMORY_MODE,
-- 
cgit 


From 0126d493b62e1306db09e1019c05e0bfe84ae8e7 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Fri, 20 Sep 2013 07:40:42 -0700
Subject: tools/perf/record: Add abort_tx,no_tx,in_tx branch filter options to
 perf record -j

Make perf record -j aware of the new in_tx,no_tx,abort_tx branch qualifiers.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1379688044-14173-5-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/Documentation/perf-record.txt | 3 +++
 tools/perf/builtin-record.c              | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index e297b74471b8..6bec1c944849 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -166,6 +166,9 @@ following filters are defined:
         - u:  only when the branch target is at the user level
         - k: only when the branch target is in the kernel
         - hv: only when the target is at the hypervisor level
+	- in_tx: only when the target is in a hardware transaction
+	- no_tx: only when the target is not in a hardware transaction
+	- abort_tx: only when the target is a hardware transaction abort
 
 +
 The option requires at least one branch type among any, any_call, any_ret, ind_call.
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index a41ac41546c9..8384b54e1eba 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -618,6 +618,9 @@ static const struct branch_mode branch_modes[] = {
 	BRANCH_OPT("any_call", PERF_SAMPLE_BRANCH_ANY_CALL),
 	BRANCH_OPT("any_ret", PERF_SAMPLE_BRANCH_ANY_RETURN),
 	BRANCH_OPT("ind_call", PERF_SAMPLE_BRANCH_IND_CALL),
+	BRANCH_OPT("abort_tx", PERF_SAMPLE_BRANCH_ABORT_TX),
+	BRANCH_OPT("in_tx", PERF_SAMPLE_BRANCH_IN_TX),
+	BRANCH_OPT("no_tx", PERF_SAMPLE_BRANCH_NO_TX),
 	BRANCH_END
 };
 
-- 
cgit 


From 475eeab9f3c1579c8da89667496084db4867bf7c Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Fri, 20 Sep 2013 07:40:43 -0700
Subject: tools/perf: Add support for record transaction flags

Add support for recording and displaying the transaction flags.
They are essentially a new sort key. Also display them
in a nice way to the user.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1379688044-14173-6-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/Documentation/perf-record.txt |  4 +-
 tools/perf/Documentation/perf-report.txt |  4 ++
 tools/perf/Documentation/perf-top.txt    |  2 +-
 tools/perf/builtin-annotate.c            |  2 +-
 tools/perf/builtin-diff.c                |  8 ++--
 tools/perf/builtin-record.c              |  2 +
 tools/perf/builtin-report.c              |  4 +-
 tools/perf/builtin-top.c                 |  5 +--
 tools/perf/perf.h                        |  1 +
 tools/perf/tests/hists_link.c            |  6 ++-
 tools/perf/util/event.h                  |  1 +
 tools/perf/util/evsel.c                  |  9 ++++
 tools/perf/util/hist.c                   |  7 ++-
 tools/perf/util/hist.h                   |  4 +-
 tools/perf/util/session.c                |  3 ++
 tools/perf/util/sort.c                   | 73 ++++++++++++++++++++++++++++++++
 tools/perf/util/sort.h                   |  2 +
 17 files changed, 122 insertions(+), 15 deletions(-)

diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index 6bec1c944849..f732eaa6a500 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -179,12 +179,14 @@ is enabled for all the sampling events. The sampled branch type is the same for
 The various filters must be specified as a comma separated list: --branch-filter any_ret,u,k
 Note that this feature may not be available on all processors.
 
--W::
 --weight::
 Enable weightened sampling. An additional weight is recorded per sample and can be
 displayed with the weight and local_weight sort keys.  This currently works for TSX
 abort events and some memory events in precise mode on modern Intel CPUs.
 
+--transaction::
+Record transaction flags for transaction related events.
+
 SEE ALSO
 --------
 linkperf:perf-stat[1], linkperf:perf-list[1]
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index ae337e38cff5..be5ad87b6c3d 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -72,6 +72,10 @@ OPTIONS
 	- cpu: cpu number the task ran at the time of sample
 	- srcline: filename and line number executed at the time of sample.  The
 	DWARF debugging info must be provided.
+	- weight: Event specific weight, e.g. memory latency or transaction
+	abort cost. This is the global weight.
+	- local_weight: Local weight version of the weight above.
+	- transaction: Transaction abort flags.
 
 	By default, comm, dso and symbol keys are used.
 	(i.e. --sort comm,dso,symbol)
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index f852eb5d988d..6d70fbfe28a2 100644
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -113,7 +113,7 @@ Default is to monitor all CPUS.
 -s::
 --sort::
 	Sort by key(s): pid, comm, dso, symbol, parent, srcline, weight,
-	local_weight, abort, in_tx
+	local_weight, abort, in_tx, transaction
 
 -n::
 --show-nr-samples::
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 5ebd0c3b71b6..0393d9800516 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -63,7 +63,7 @@ static int perf_evsel__add_sample(struct perf_evsel *evsel,
 		return 0;
 	}
 
-	he = __hists__add_entry(&evsel->hists, al, NULL, 1, 1);
+	he = __hists__add_entry(&evsel->hists, al, NULL, 1, 1, 0);
 	if (he == NULL)
 		return -ENOMEM;
 
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index f28799e94f2a..2a78dc806c39 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -304,9 +304,10 @@ static int formula_fprintf(struct hist_entry *he, struct hist_entry *pair,
 
 static int hists__add_entry(struct hists *self,
 			    struct addr_location *al, u64 period,
-			    u64 weight)
+			    u64 weight, u64 transaction)
 {
-	if (__hists__add_entry(self, al, NULL, period, weight) != NULL)
+	if (__hists__add_entry(self, al, NULL, period, weight, transaction)
+	    != NULL)
 		return 0;
 	return -ENOMEM;
 }
@@ -328,7 +329,8 @@ static int diff__process_sample_event(struct perf_tool *tool __maybe_unused,
 	if (al.filtered)
 		return 0;
 
-	if (hists__add_entry(&evsel->hists, &al, sample->period, sample->weight)) {
+	if (hists__add_entry(&evsel->hists, &al, sample->period,
+			     sample->weight, sample->transaction)) {
 		pr_warning("problem incrementing symbol period, skipping event\n");
 		return -1;
 	}
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 8384b54e1eba..a78db3f31b25 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -894,6 +894,8 @@ const struct option record_options[] = {
 		     parse_branch_stack),
 	OPT_BOOLEAN('W', "weight", &record.opts.sample_weight,
 		    "sample by weight (on special events only)"),
+	OPT_BOOLEAN(0, "transaction", &record.opts.sample_transaction,
+		    "sample transaction flags (special events only)"),
 	OPT_END()
 };
 
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 89b188d64ea9..06e1abe351dd 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -259,7 +259,7 @@ static int perf_evsel__add_hist_entry(struct perf_evsel *evsel,
 	}
 
 	he = __hists__add_entry(&evsel->hists, al, parent, sample->period,
-					sample->weight);
+				sample->weight, sample->transaction);
 	if (he == NULL)
 		return -ENOMEM;
 
@@ -787,7 +787,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 		   "sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline,"
 		   " dso_to, dso_from, symbol_to, symbol_from, mispredict,"
 		   " weight, local_weight, mem, symbol_daddr, dso_daddr, tlb, "
-		   "snoop, locked, abort, in_tx"),
+		   "snoop, locked, abort, in_tx, transaction"),
 	OPT_BOOLEAN(0, "showcpuutilization", &symbol_conf.show_cpu_utilization,
 		    "Show sample percentage for different cpu modes"),
 	OPT_STRING('p', "parent", &parent_pattern, "regex",
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 6534a37d66fe..b3e0229ee38f 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -247,9 +247,8 @@ static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel,
 
 	pthread_mutex_lock(&evsel->hists.lock);
 	he = __hists__add_entry(&evsel->hists, al, NULL, sample->period,
-				sample->weight);
+				sample->weight, sample->transaction);
 	pthread_mutex_unlock(&evsel->hists.lock);
-
 	if (he == NULL)
 		return NULL;
 
@@ -1104,7 +1103,7 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
 		    "be more verbose (show counter open errors, etc)"),
 	OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
 		   "sort by key(s): pid, comm, dso, symbol, parent, weight, local_weight,"
-		   " abort, in_tx"),
+		   " abort, in_tx, transaction"),
 	OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples,
 		    "Show a column with the number of samples"),
 	OPT_CALLBACK_DEFAULT('G', "call-graph", &top.record_opts,
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index acf3d665474d..84502e88488b 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -233,6 +233,7 @@ struct perf_record_opts {
 	u64	     default_interval;
 	u64	     user_interval;
 	u16	     stack_dump_size;
+	bool	     sample_transaction;
 };
 
 #endif
diff --git a/tools/perf/tests/hists_link.c b/tools/perf/tests/hists_link.c
index 4228ffc0d968..025503a22ff7 100644
--- a/tools/perf/tests/hists_link.c
+++ b/tools/perf/tests/hists_link.c
@@ -222,7 +222,8 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
 							  &sample) < 0)
 				goto out;
 
-			he = __hists__add_entry(&evsel->hists, &al, NULL, 1, 1);
+			he = __hists__add_entry(&evsel->hists, &al, NULL,
+						1, 1, 0);
 			if (he == NULL)
 				goto out;
 
@@ -244,7 +245,8 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
 							  &sample) < 0)
 				goto out;
 
-			he = __hists__add_entry(&evsel->hists, &al, NULL, 1, 1);
+			he = __hists__add_entry(&evsel->hists, &al, NULL, 1, 1,
+						0);
 			if (he == NULL)
 				goto out;
 
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index c67ecc457d29..17d9e167a7b9 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -111,6 +111,7 @@ struct perf_sample {
 	u64 stream_id;
 	u64 period;
 	u64 weight;
+	u64 transaction;
 	u32 cpu;
 	u32 raw_size;
 	u64 data_src;
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 0ce9febf1ba0..abe69af58b62 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -681,6 +681,9 @@ void perf_evsel__config(struct perf_evsel *evsel,
 	attr->mmap2 = track && !perf_missing_features.mmap2;
 	attr->comm  = track;
 
+	if (opts->sample_transaction)
+		attr->sample_type	|= PERF_SAMPLE_TRANSACTION;
+
 	/*
 	 * XXX see the function comment above
 	 *
@@ -1470,6 +1473,12 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
 		array++;
 	}
 
+	data->transaction = 0;
+	if (type & PERF_SAMPLE_TRANSACTION) {
+		data->transaction = *array;
+		array++;
+	}
+
 	return 0;
 }
 
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 97dc2808885d..f3278a388e9a 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -160,6 +160,10 @@ void hists__calc_col_len(struct hists *hists, struct hist_entry *h)
 	hists__new_col_len(hists, HISTC_MEM_LVL, 21 + 3);
 	hists__new_col_len(hists, HISTC_LOCAL_WEIGHT, 12);
 	hists__new_col_len(hists, HISTC_GLOBAL_WEIGHT, 12);
+
+	if (h->transaction)
+		hists__new_col_len(hists, HISTC_TRANSACTION,
+				   hist_entry__transaction_len());
 }
 
 void hists__output_recalc_col_len(struct hists *hists, int max_rows)
@@ -466,7 +470,7 @@ struct hist_entry *__hists__add_branch_entry(struct hists *self,
 struct hist_entry *__hists__add_entry(struct hists *self,
 				      struct addr_location *al,
 				      struct symbol *sym_parent, u64 period,
-				      u64 weight)
+				      u64 weight, u64 transaction)
 {
 	struct hist_entry entry = {
 		.thread	= al->thread,
@@ -487,6 +491,7 @@ struct hist_entry *__hists__add_entry(struct hists *self,
 		.hists	= self,
 		.branch_info = NULL,
 		.mem_info = NULL,
+		.transaction = transaction,
 	};
 
 	return add_hist_entry(self, &entry, al, period, weight);
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index f743e96005f2..6a048c09cd64 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -59,6 +59,7 @@ enum hist_column {
 	HISTC_MEM_TLB,
 	HISTC_MEM_LVL,
 	HISTC_MEM_SNOOP,
+	HISTC_TRANSACTION,
 	HISTC_NR_COLS, /* Last entry */
 };
 
@@ -84,9 +85,10 @@ struct hists {
 struct hist_entry *__hists__add_entry(struct hists *self,
 				      struct addr_location *al,
 				      struct symbol *parent, u64 period,
-				      u64 weight);
+				      u64 weight, u64 transaction);
 int64_t hist_entry__cmp(struct hist_entry *left, struct hist_entry *right);
 int64_t hist_entry__collapse(struct hist_entry *left, struct hist_entry *right);
+int hist_entry__transaction_len(void);
 int hist_entry__sort_snprintf(struct hist_entry *self, char *bf, size_t size,
 			      struct hists *hists);
 void hist_entry__free(struct hist_entry *);
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 70ffa41518f3..211b325791ad 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -858,6 +858,9 @@ static void dump_sample(struct perf_evsel *evsel, union perf_event *event,
 	if (sample_type & PERF_SAMPLE_DATA_SRC)
 		printf(" . data_src: 0x%"PRIx64"\n", sample->data_src);
 
+	if (sample_type & PERF_SAMPLE_TRANSACTION)
+		printf("... transaction: %" PRIx64 "\n", sample->transaction);
+
 	if (sample_type & PERF_SAMPLE_READ)
 		sample_read__printf(sample, evsel->attr.read_format);
 }
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 1771566858cc..b4ecc0e4c908 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -907,6 +907,78 @@ struct sort_entry sort_in_tx = {
 	.se_width_idx	= HISTC_IN_TX,
 };
 
+static int64_t
+sort__transaction_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+	return left->transaction - right->transaction;
+}
+
+static inline char *add_str(char *p, const char *str)
+{
+	strcpy(p, str);
+	return p + strlen(str);
+}
+
+static struct txbit {
+	unsigned flag;
+	const char *name;
+	int skip_for_len;
+} txbits[] = {
+	{ PERF_TXN_ELISION,        "EL ",        0 },
+	{ PERF_TXN_TRANSACTION,    "TX ",        1 },
+	{ PERF_TXN_SYNC,           "SYNC ",      1 },
+	{ PERF_TXN_ASYNC,          "ASYNC ",     0 },
+	{ PERF_TXN_RETRY,          "RETRY ",     0 },
+	{ PERF_TXN_CONFLICT,       "CON ",       0 },
+	{ PERF_TXN_CAPACITY_WRITE, "CAP-WRITE ", 1 },
+	{ PERF_TXN_CAPACITY_READ,  "CAP-READ ",  0 },
+	{ 0, NULL, 0 }
+};
+
+int hist_entry__transaction_len(void)
+{
+	int i;
+	int len = 0;
+
+	for (i = 0; txbits[i].name; i++) {
+		if (!txbits[i].skip_for_len)
+			len += strlen(txbits[i].name);
+	}
+	len += 4; /* :XX<space> */
+	return len;
+}
+
+static int hist_entry__transaction_snprintf(struct hist_entry *self, char *bf,
+					    size_t size, unsigned int width)
+{
+	u64 t = self->transaction;
+	char buf[128];
+	char *p = buf;
+	int i;
+
+	buf[0] = 0;
+	for (i = 0; txbits[i].name; i++)
+		if (txbits[i].flag & t)
+			p = add_str(p, txbits[i].name);
+	if (t && !(t & (PERF_TXN_SYNC|PERF_TXN_ASYNC)))
+		p = add_str(p, "NEITHER ");
+	if (t & PERF_TXN_ABORT_MASK) {
+		sprintf(p, ":%" PRIx64,
+			(t & PERF_TXN_ABORT_MASK) >>
+			PERF_TXN_ABORT_SHIFT);
+		p += strlen(p);
+	}
+
+	return repsep_snprintf(bf, size, "%-*s", width, buf);
+}
+
+struct sort_entry sort_transaction = {
+	.se_header	= "Transaction                ",
+	.se_cmp		= sort__transaction_cmp,
+	.se_snprintf	= hist_entry__transaction_snprintf,
+	.se_width_idx	= HISTC_TRANSACTION,
+};
+
 struct sort_dimension {
 	const char		*name;
 	struct sort_entry	*entry;
@@ -925,6 +997,7 @@ static struct sort_dimension common_sort_dimensions[] = {
 	DIM(SORT_SRCLINE, "srcline", sort_srcline),
 	DIM(SORT_LOCAL_WEIGHT, "local_weight", sort_local_weight),
 	DIM(SORT_GLOBAL_WEIGHT, "weight", sort_global_weight),
+	DIM(SORT_TRANSACTION, "transaction", sort_transaction),
 };
 
 #undef DIM
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 9dad3a0440dc..bf4333694d3a 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -85,6 +85,7 @@ struct hist_entry {
 	struct map_symbol	ms;
 	struct thread		*thread;
 	u64			ip;
+	u64			transaction;
 	s32			cpu;
 
 	struct hist_entry_diff	diff;
@@ -145,6 +146,7 @@ enum sort_type {
 	SORT_SRCLINE,
 	SORT_LOCAL_WEIGHT,
 	SORT_GLOBAL_WEIGHT,
+	SORT_TRANSACTION,
 
 	/* branch stack specific sort keys */
 	__SORT_BRANCH_STACK,
-- 
cgit 


From b7af41a1bc255c0098c37a4bcf5c7e5e168ce875 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Fri, 20 Sep 2013 07:40:44 -0700
Subject: perf/x86: Suppress duplicated abort LBR records

Haswell always give an extra LBR record after every TSX abort.
Suppress the extra record.

This only works when the abort is visible in the LBR
If the original abort has already left the 16 LBR entries
the extra entry will will stay.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1379688044-14173-7-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/cpu/perf_event.h           |  1 +
 arch/x86/kernel/cpu/perf_event_intel.c     |  1 +
 arch/x86/kernel/cpu/perf_event_intel_lbr.c | 29 +++++++++++++++++++++--------
 3 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/arch/x86/kernel/cpu/perf_event.h b/arch/x86/kernel/cpu/perf_event.h
index ce84edeeae27..fd00bb29425d 100644
--- a/arch/x86/kernel/cpu/perf_event.h
+++ b/arch/x86/kernel/cpu/perf_event.h
@@ -445,6 +445,7 @@ struct x86_pmu {
 	int		lbr_nr;			   /* hardware stack size */
 	u64		lbr_sel_mask;		   /* LBR_SELECT valid bits */
 	const int	*lbr_sel_map;		   /* lbr_select mappings */
+	bool		lbr_double_abort;	   /* duplicated lbr aborts */
 
 	/*
 	 * Extra registers for events
diff --git a/arch/x86/kernel/cpu/perf_event_intel.c b/arch/x86/kernel/cpu/perf_event_intel.c
index 36b5ab884c15..0fa4f242f050 100644
--- a/arch/x86/kernel/cpu/perf_event_intel.c
+++ b/arch/x86/kernel/cpu/perf_event_intel.c
@@ -2519,6 +2519,7 @@ __init int intel_pmu_init(void)
 		x86_pmu.hw_config = hsw_hw_config;
 		x86_pmu.get_event_constraints = hsw_get_event_constraints;
 		x86_pmu.cpu_events = hsw_events_attrs;
+		x86_pmu.lbr_double_abort = true;
 		pr_cont("Haswell events, ");
 		break;
 
diff --git a/arch/x86/kernel/cpu/perf_event_intel_lbr.c b/arch/x86/kernel/cpu/perf_event_intel_lbr.c
index d5be06a5005e..90ee6c1d0542 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_lbr.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_lbr.c
@@ -284,6 +284,7 @@ static void intel_pmu_lbr_read_64(struct cpu_hw_events *cpuc)
 	int lbr_format = x86_pmu.intel_cap.lbr_format;
 	u64 tos = intel_pmu_lbr_tos();
 	int i;
+	int out = 0;
 
 	for (i = 0; i < x86_pmu.lbr_nr; i++) {
 		unsigned long lbr_idx = (tos - i) & mask;
@@ -306,15 +307,27 @@ static void intel_pmu_lbr_read_64(struct cpu_hw_events *cpuc)
 		}
 		from = (u64)((((s64)from) << skip) >> skip);
 
-		cpuc->lbr_entries[i].from	= from;
-		cpuc->lbr_entries[i].to		= to;
-		cpuc->lbr_entries[i].mispred	= mis;
-		cpuc->lbr_entries[i].predicted	= pred;
-		cpuc->lbr_entries[i].in_tx	= in_tx;
-		cpuc->lbr_entries[i].abort	= abort;
-		cpuc->lbr_entries[i].reserved	= 0;
+		/*
+		 * Some CPUs report duplicated abort records,
+		 * with the second entry not having an abort bit set.
+		 * Skip them here. This loop runs backwards,
+		 * so we need to undo the previous record.
+		 * If the abort just happened outside the window
+		 * the extra entry cannot be removed.
+		 */
+		if (abort && x86_pmu.lbr_double_abort && out > 0)
+			out--;
+
+		cpuc->lbr_entries[out].from	 = from;
+		cpuc->lbr_entries[out].to	 = to;
+		cpuc->lbr_entries[out].mispred	 = mis;
+		cpuc->lbr_entries[out].predicted = pred;
+		cpuc->lbr_entries[out].in_tx	 = in_tx;
+		cpuc->lbr_entries[out].abort	 = abort;
+		cpuc->lbr_entries[out].reserved	 = 0;
+		out++;
 	}
-	cpuc->lbr_stack.nr = i;
+	cpuc->lbr_stack.nr = out;
 }
 
 void intel_pmu_lbr_read(void)
-- 
cgit 


From 2f2a2b60adf368bacd6acd2116c01e32caf936c4 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 2 Oct 2013 11:22:18 +0200
Subject: sched/wait: Make the signal_pending() checks consistent

There's two patterns to check signals in the __wait_event*() macros:

  if (!signal_pending(current)) {
	schedule();
	continue;
  }
  ret = -ERESTARTSYS;
  break;

And the more natural:

  if (signal_pending(current)) {
	ret = -ERESTARTSYS;
	break;
  }
  schedule();

Change them all into the latter form.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092527.956416254@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/tty.h  | 13 ++++++-------
 include/linux/wait.h | 35 ++++++++++++++++-------------------
 2 files changed, 22 insertions(+), 26 deletions(-)

diff --git a/include/linux/tty.h b/include/linux/tty.h
index 64f864651d86..050372979076 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -686,14 +686,13 @@ do {									\
 		prepare_to_wait(&wq, &__wait, TASK_INTERRUPTIBLE);	\
 		if (condition)						\
 			break;						\
-		if (!signal_pending(current)) {				\
-			tty_unlock(tty);					\
-			schedule();					\
-			tty_lock(tty);					\
-			continue;					\
+		if (signal_pending(current)) {				\
+			ret = -ERESTARTSYS;				\
+			break;						\
 		}							\
-		ret = -ERESTARTSYS;					\
-		break;							\
+		tty_unlock(tty);					\
+		schedule();						\
+		tty_lock(tty);						\
 	}								\
 	finish_wait(&wq, &__wait);					\
 } while (0)
diff --git a/include/linux/wait.h b/include/linux/wait.h
index a67fc1635592..ccf0c529fd37 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -261,12 +261,11 @@ do {									\
 		prepare_to_wait(&wq, &__wait, TASK_INTERRUPTIBLE);	\
 		if (condition)						\
 			break;						\
-		if (!signal_pending(current)) {				\
-			schedule();					\
-			continue;					\
+		if (signal_pending(current)) {				\
+			ret = -ERESTARTSYS;				\
+			break;						\
 		}							\
-		ret = -ERESTARTSYS;					\
-		break;							\
+		schedule();						\
 	}								\
 	finish_wait(&wq, &__wait);					\
 } while (0)
@@ -302,14 +301,13 @@ do {									\
 		prepare_to_wait(&wq, &__wait, TASK_INTERRUPTIBLE);	\
 		if (condition)						\
 			break;						\
-		if (!signal_pending(current)) {				\
-			ret = schedule_timeout(ret);			\
-			if (!ret)					\
-				break;					\
-			continue;					\
+		if (signal_pending(current)) {				\
+			ret = -ERESTARTSYS;				\
+			break;						\
 		}							\
-		ret = -ERESTARTSYS;					\
-		break;							\
+		ret = schedule_timeout(ret);				\
+		if (!ret)						\
+			break;						\
 	}								\
 	if (!ret && (condition))					\
 		ret = 1;						\
@@ -439,14 +437,13 @@ do {									\
 			finish_wait(&wq, &__wait);			\
 			break;						\
 		}							\
-		if (!signal_pending(current)) {				\
-			schedule();					\
-			continue;					\
-		}							\
-		ret = -ERESTARTSYS;					\
-		abort_exclusive_wait(&wq, &__wait, 			\
+		if (signal_pending(current)) {				\
+			ret = -ERESTARTSYS;				\
+			abort_exclusive_wait(&wq, &__wait, 		\
 				TASK_INTERRUPTIBLE, NULL);		\
-		break;							\
+			break;						\
+		}							\
+		schedule();						\
 	}								\
 } while (0)
 
-- 
cgit 


From 2953ef246b058989657e1e77b36b67566ac06f7b Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 2 Oct 2013 11:22:19 +0200
Subject: sched/wait: Change timeout logic

Commit 4c663cf ("wait: fix false timeouts when using
wait_event_timeout()") introduced an additional condition check after
a timeout but there's a few issues;

 - it forgot one site
 - it put the check after the main loop; not at the actual timeout
   check.

Cure both; by wrapping the condition (as suggested by Oleg), this
avoids double evaluation of 'condition' which could be quite big.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.028892896@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/wait.h | 24 +++++++++++-------------
 1 file changed, 11 insertions(+), 13 deletions(-)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index ccf0c529fd37..b2afd665e4ea 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -179,6 +179,14 @@ wait_queue_head_t *bit_waitqueue(void *, int);
 #define wake_up_interruptible_sync_poll(x, m)				\
 	__wake_up_sync_key((x), TASK_INTERRUPTIBLE, 1, (void *) (m))
 
+#define ___wait_cond_timeout(condition, ret)				\
+({									\
+ 	bool __cond = (condition);					\
+ 	if (__cond && !ret)						\
+ 		ret = 1;						\
+ 	__cond || !ret;							\
+})
+
 #define __wait_event(wq, condition) 					\
 do {									\
 	DEFINE_WAIT(__wait);						\
@@ -217,14 +225,10 @@ do {									\
 									\
 	for (;;) {							\
 		prepare_to_wait(&wq, &__wait, TASK_UNINTERRUPTIBLE);	\
-		if (condition)						\
+		if (___wait_cond_timeout(condition, ret))		\
 			break;						\
 		ret = schedule_timeout(ret);				\
-		if (!ret)						\
-			break;						\
 	}								\
-	if (!ret && (condition))					\
-		ret = 1;						\
 	finish_wait(&wq, &__wait);					\
 } while (0)
 
@@ -299,18 +303,14 @@ do {									\
 									\
 	for (;;) {							\
 		prepare_to_wait(&wq, &__wait, TASK_INTERRUPTIBLE);	\
-		if (condition)						\
+		if (___wait_cond_timeout(condition, ret))		\
 			break;						\
 		if (signal_pending(current)) {				\
 			ret = -ERESTARTSYS;				\
 			break;						\
 		}							\
 		ret = schedule_timeout(ret);				\
-		if (!ret)						\
-			break;						\
 	}								\
-	if (!ret && (condition))					\
-		ret = 1;						\
 	finish_wait(&wq, &__wait);					\
 } while (0)
 
@@ -815,7 +815,7 @@ do {									\
 									\
 	for (;;) {							\
 		prepare_to_wait(&wq, &__wait, TASK_INTERRUPTIBLE);	\
-		if (condition)						\
+		if (___wait_cond_timeout(condition, ret))		\
 			break;						\
 		if (signal_pending(current)) {				\
 			ret = -ERESTARTSYS;				\
@@ -824,8 +824,6 @@ do {									\
 		spin_unlock_irq(&lock);					\
 		ret = schedule_timeout(ret);				\
 		spin_lock_irq(&lock);					\
-		if (!ret)						\
-			break;						\
 	}								\
 	finish_wait(&wq, &__wait);					\
 } while (0)
-- 
cgit 


From bb632bc44970f75b66df102e831a4fc0692e9159 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 2 Oct 2013 11:22:20 +0200
Subject: sched/wait: Change the wait_exclusive control flow

Purely a preparatory patch; it changes the control flow to match what
will soon be generated by generic code so that that patch can be a
unity transform.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.107994763@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/wait.h | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index b2afd665e4ea..7d7819dafcc5 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -428,23 +428,24 @@ do {									\
 
 #define __wait_event_interruptible_exclusive(wq, condition, ret)	\
 do {									\
+	__label__ __out;						\
 	DEFINE_WAIT(__wait);						\
 									\
 	for (;;) {							\
 		prepare_to_wait_exclusive(&wq, &__wait,			\
 					TASK_INTERRUPTIBLE);		\
-		if (condition) {					\
-			finish_wait(&wq, &__wait);			\
+		if (condition)						\
 			break;						\
-		}							\
 		if (signal_pending(current)) {				\
 			ret = -ERESTARTSYS;				\
 			abort_exclusive_wait(&wq, &__wait, 		\
 				TASK_INTERRUPTIBLE, NULL);		\
-			break;						\
+			goto __out;					\
 		}							\
 		schedule();						\
 	}								\
+	finish_wait(&wq, &__wait);					\
+__out:	;								\
 } while (0)
 
 #define wait_event_interruptible_exclusive(wq, condition)		\
-- 
cgit 


From 41a1431b178c3b731d6dfc40b987528b333dd93e Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 2 Oct 2013 11:22:21 +0200
Subject: sched/wait: Introduce ___wait_event()

There's far too much duplication in the __wait_event macros; in order
to fix this introduce ___wait_event() a macro with the capability to
replace most other macros.

With the previous patches changing the various __wait_event*()
implementations to be more uniform; we can now collapse the lot
without also changing generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.181897111@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/wait.h | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index 7d7819dafcc5..29d0249e03ab 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -187,6 +187,42 @@ wait_queue_head_t *bit_waitqueue(void *, int);
  	__cond || !ret;							\
 })
 
+#define ___wait_signal_pending(state)					\
+	((state == TASK_INTERRUPTIBLE && signal_pending(current)) ||	\
+	 (state == TASK_KILLABLE && fatal_signal_pending(current)))
+
+#define ___wait_nop_ret		int ret __always_unused
+
+#define ___wait_event(wq, condition, state, exclusive, ret, cmd)	\
+do {									\
+	__label__ __out;						\
+	DEFINE_WAIT(__wait);						\
+									\
+	for (;;) {							\
+		if (exclusive)						\
+			prepare_to_wait_exclusive(&wq, &__wait, state); \
+		else							\
+			prepare_to_wait(&wq, &__wait, state);		\
+									\
+		if (condition)						\
+			break;						\
+									\
+		if (___wait_signal_pending(state)) {			\
+			ret = -ERESTARTSYS;				\
+			if (exclusive) {				\
+				abort_exclusive_wait(&wq, &__wait, 	\
+						     state, NULL); 	\
+				goto __out;				\
+			}						\
+			break;						\
+		}							\
+									\
+		cmd;							\
+	}								\
+	finish_wait(&wq, &__wait);					\
+__out:	;								\
+} while (0)
+
 #define __wait_event(wq, condition) 					\
 do {									\
 	DEFINE_WAIT(__wait);						\
-- 
cgit 


From 854267f4384243b19c03a2942e84f06f2beb0952 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 2 Oct 2013 11:22:22 +0200
Subject: sched/wait: Collapse __wait_event()

Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.254863348@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/wait.h | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index 29d0249e03ab..68e3a628e157 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -224,17 +224,8 @@ __out:	;								\
 } while (0)
 
 #define __wait_event(wq, condition) 					\
-do {									\
-	DEFINE_WAIT(__wait);						\
-									\
-	for (;;) {							\
-		prepare_to_wait(&wq, &__wait, TASK_UNINTERRUPTIBLE);	\
-		if (condition)						\
-			break;						\
-		schedule();						\
-	}								\
-	finish_wait(&wq, &__wait);					\
-} while (0)
+	___wait_event(wq, condition, TASK_UNINTERRUPTIBLE, 0,		\
+		      ___wait_nop_ret, schedule())
 
 /**
  * wait_event - sleep until a condition gets true
-- 
cgit 


From ddc1994b8217527e1818f690f17597fc9cedf81b Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 2 Oct 2013 11:22:23 +0200
Subject: sched/wait: Collapse __wait_event_timeout()

Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.325264677@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/wait.h | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index 68e3a628e157..546b94efc82e 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -247,17 +247,9 @@ do {									\
 } while (0)
 
 #define __wait_event_timeout(wq, condition, ret)			\
-do {									\
-	DEFINE_WAIT(__wait);						\
-									\
-	for (;;) {							\
-		prepare_to_wait(&wq, &__wait, TASK_UNINTERRUPTIBLE);	\
-		if (___wait_cond_timeout(condition, ret))		\
-			break;						\
-		ret = schedule_timeout(ret);				\
-	}								\
-	finish_wait(&wq, &__wait);					\
-} while (0)
+	___wait_event(wq, ___wait_cond_timeout(condition, ret), 	\
+		      TASK_UNINTERRUPTIBLE, 0, ret,			\
+		      ret = schedule_timeout(ret))
 
 /**
  * wait_event_timeout - sleep until a condition gets true or a timeout elapses
-- 
cgit 


From f13f4c41c9cf9cd61c896e46e4e7ba2687e2af9c Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 2 Oct 2013 11:22:24 +0200
Subject: sched/wait: Collapse __wait_event_interruptible()

Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.396949919@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/wait.h | 17 ++---------------
 1 file changed, 2 insertions(+), 15 deletions(-)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index 546b94efc82e..39e4bbd2c735 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -277,21 +277,8 @@ do {									\
 })
 
 #define __wait_event_interruptible(wq, condition, ret)			\
-do {									\
-	DEFINE_WAIT(__wait);						\
-									\
-	for (;;) {							\
-		prepare_to_wait(&wq, &__wait, TASK_INTERRUPTIBLE);	\
-		if (condition)						\
-			break;						\
-		if (signal_pending(current)) {				\
-			ret = -ERESTARTSYS;				\
-			break;						\
-		}							\
-		schedule();						\
-	}								\
-	finish_wait(&wq, &__wait);					\
-} while (0)
+	___wait_event(wq, condition, TASK_INTERRUPTIBLE, 0, ret,	\
+		      schedule())
 
 /**
  * wait_event_interruptible - sleep until a condition gets true
-- 
cgit 


From c2ebb1fb4eddf3d1d66fe31d1e89e83ee211b81c Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 2 Oct 2013 11:22:25 +0200
Subject: sched/wait: Collapse __wait_event_interruptible_timeout()

Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.469616907@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/wait.h | 18 +++---------------
 1 file changed, 3 insertions(+), 15 deletions(-)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index 39e4bbd2c735..a79fb15c1dd4 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -304,21 +304,9 @@ do {									\
 })
 
 #define __wait_event_interruptible_timeout(wq, condition, ret)		\
-do {									\
-	DEFINE_WAIT(__wait);						\
-									\
-	for (;;) {							\
-		prepare_to_wait(&wq, &__wait, TASK_INTERRUPTIBLE);	\
-		if (___wait_cond_timeout(condition, ret))		\
-			break;						\
-		if (signal_pending(current)) {				\
-			ret = -ERESTARTSYS;				\
-			break;						\
-		}							\
-		ret = schedule_timeout(ret);				\
-	}								\
-	finish_wait(&wq, &__wait);					\
-} while (0)
+	___wait_event(wq, ___wait_cond_timeout(condition, ret),		\
+		      TASK_INTERRUPTIBLE, 0, ret,			\
+		      ret = schedule_timeout(ret))
 
 /**
  * wait_event_interruptible_timeout - sleep until a condition gets true or a timeout elapses
-- 
cgit 


From 48c2521717b39cb6904941ec2847d9775669207a Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 2 Oct 2013 11:22:26 +0200
Subject: sched/wait: Collapse __wait_event_interruptible_exclusive()

Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.541716442@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/wait.h | 22 ++--------------------
 1 file changed, 2 insertions(+), 20 deletions(-)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index a79fb15c1dd4..c4ab172daac0 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -421,26 +421,8 @@ do {									\
 })
 
 #define __wait_event_interruptible_exclusive(wq, condition, ret)	\
-do {									\
-	__label__ __out;						\
-	DEFINE_WAIT(__wait);						\
-									\
-	for (;;) {							\
-		prepare_to_wait_exclusive(&wq, &__wait,			\
-					TASK_INTERRUPTIBLE);		\
-		if (condition)						\
-			break;						\
-		if (signal_pending(current)) {				\
-			ret = -ERESTARTSYS;				\
-			abort_exclusive_wait(&wq, &__wait, 		\
-				TASK_INTERRUPTIBLE, NULL);		\
-			goto __out;					\
-		}							\
-		schedule();						\
-	}								\
-	finish_wait(&wq, &__wait);					\
-__out:	;								\
-} while (0)
+	___wait_event(wq, condition, TASK_INTERRUPTIBLE, 1, ret,	\
+		      schedule())
 
 #define wait_event_interruptible_exclusive(wq, condition)		\
 ({									\
-- 
cgit 


From 13cb5042a4b80396f77cf5d599d2c002c57b89dc Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 2 Oct 2013 11:22:27 +0200
Subject: sched/wait: Collapse __wait_event_lock_irq()

Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.612813379@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/wait.h | 20 ++++++--------------
 1 file changed, 6 insertions(+), 14 deletions(-)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index c4ab172daac0..d64918e09e3c 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -624,20 +624,12 @@ do {									\
 
 
 #define __wait_event_lock_irq(wq, condition, lock, cmd)			\
-do {									\
-	DEFINE_WAIT(__wait);						\
-									\
-	for (;;) {							\
-		prepare_to_wait(&wq, &__wait, TASK_UNINTERRUPTIBLE);	\
-		if (condition)						\
-			break;						\
-		spin_unlock_irq(&lock);					\
-		cmd;							\
-		schedule();						\
-		spin_lock_irq(&lock);					\
-	}								\
-	finish_wait(&wq, &__wait);					\
-} while (0)
+	___wait_event(wq, condition, TASK_UNINTERRUPTIBLE, 0,		\
+		      ___wait_nop_ret,					\
+		      spin_unlock_irq(&lock);				\
+		      cmd;						\
+		      schedule();					\
+		      spin_lock_irq(&lock))
 
 /**
  * wait_event_lock_irq_cmd - sleep until a condition gets true. The
-- 
cgit 


From 8fbd88fa1717601ef91ced49a32f24786b167065 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 2 Oct 2013 11:22:28 +0200
Subject: sched/wait: Collapse __wait_event_interruptible_lock_irq()

Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.686006009@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/wait.h | 26 ++++++--------------------
 1 file changed, 6 insertions(+), 20 deletions(-)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index d64918e09e3c..a577a85004ae 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -689,26 +689,12 @@ do {									\
 } while (0)
 
 
-#define __wait_event_interruptible_lock_irq(wq, condition,		\
-					    lock, ret, cmd)		\
-do {									\
-	DEFINE_WAIT(__wait);						\
-									\
-	for (;;) {							\
-		prepare_to_wait(&wq, &__wait, TASK_INTERRUPTIBLE);	\
-		if (condition)						\
-			break;						\
-		if (signal_pending(current)) {				\
-			ret = -ERESTARTSYS;				\
-			break;						\
-		}							\
-		spin_unlock_irq(&lock);					\
-		cmd;							\
-		schedule();						\
-		spin_lock_irq(&lock);					\
-	}								\
-	finish_wait(&wq, &__wait);					\
-} while (0)
+#define __wait_event_interruptible_lock_irq(wq, condition, lock, ret, cmd) \
+	___wait_event(wq, condition, TASK_INTERRUPTIBLE, 0, ret,	   \
+		      spin_unlock_irq(&lock);				   \
+		      cmd;						   \
+		      schedule();					   \
+		      spin_lock_irq(&lock))
 
 /**
  * wait_event_interruptible_lock_irq_cmd - sleep until a condition gets true.
-- 
cgit 


From a1dc6852ac5eecdcd3122ae01703183a3e88e979 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 2 Oct 2013 11:22:29 +0200
Subject: sched/wait: Collapse __wait_event_interruptible_lock_irq_timeout()

Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.759956109@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/wait.h | 25 ++++++-------------------
 1 file changed, 6 insertions(+), 19 deletions(-)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index a577a85004ae..5d5408b08ba5 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -763,25 +763,12 @@ do {									\
 	__ret;								\
 })
 
-#define __wait_event_interruptible_lock_irq_timeout(wq, condition,	\
-						    lock, ret)		\
-do {									\
-	DEFINE_WAIT(__wait);						\
-									\
-	for (;;) {							\
-		prepare_to_wait(&wq, &__wait, TASK_INTERRUPTIBLE);	\
-		if (___wait_cond_timeout(condition, ret))		\
-			break;						\
-		if (signal_pending(current)) {				\
-			ret = -ERESTARTSYS;				\
-			break;						\
-		}							\
-		spin_unlock_irq(&lock);					\
-		ret = schedule_timeout(ret);				\
-		spin_lock_irq(&lock);					\
-	}								\
-	finish_wait(&wq, &__wait);					\
-} while (0)
+#define __wait_event_interruptible_lock_irq_timeout(wq, condition, lock, ret) \
+	___wait_event(wq, ___wait_cond_timeout(condition, ret),		      \
+		      TASK_INTERRUPTIBLE, 0, ret,	      		      \
+		      spin_unlock_irq(&lock);				      \
+		      ret = schedule_timeout(ret);			      \
+		      spin_lock_irq(&lock));
 
 /**
  * wait_event_interruptible_lock_irq_timeout - sleep until a condition gets true or a timeout elapses.
-- 
cgit 


From 0d1e1c8a430450a3ce61a842cec64f9e2a9f3b05 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 2 Oct 2013 11:22:30 +0200
Subject: sched/wait: Collapse __wait_event_interruptible_tty()

Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.831085521@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/tty.h | 21 ++++-----------------
 1 file changed, 4 insertions(+), 17 deletions(-)

diff --git a/include/linux/tty.h b/include/linux/tty.h
index 050372979076..6e803291028f 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -679,23 +679,10 @@ static inline void tty_wait_until_sent_from_close(struct tty_struct *tty,
 })
 
 #define __wait_event_interruptible_tty(tty, wq, condition, ret)		\
-do {									\
-	DEFINE_WAIT(__wait);						\
-									\
-	for (;;) {							\
-		prepare_to_wait(&wq, &__wait, TASK_INTERRUPTIBLE);	\
-		if (condition)						\
-			break;						\
-		if (signal_pending(current)) {				\
-			ret = -ERESTARTSYS;				\
-			break;						\
-		}							\
-		tty_unlock(tty);					\
-		schedule();						\
-		tty_lock(tty);						\
-	}								\
-	finish_wait(&wq, &__wait);					\
-} while (0)
+	___wait_event(wq, condition, TASK_INTERRUPTIBLE, 0, ret,	\
+			tty_unlock(tty);				\
+			schedule();					\
+			tty_lock(tty))
 
 #ifdef CONFIG_PROC_FS
 extern void proc_tty_register_driver(struct tty_driver *);
-- 
cgit 


From cf7361fd961b6f0510572af6cf8ca3ffba07018b Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 2 Oct 2013 11:22:31 +0200
Subject: sched/wait: Collapse __wait_event_killable()

Reduce macro complexity by using the new ___wait_event() helper.
No change in behaviour, identical generated code.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.898691966@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/wait.h | 17 +----------------
 1 file changed, 1 insertion(+), 16 deletions(-)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index 5d5408b08ba5..ec3683ee0fc2 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -582,22 +582,7 @@ do {									\
 
 
 #define __wait_event_killable(wq, condition, ret)			\
-do {									\
-	DEFINE_WAIT(__wait);						\
-									\
-	for (;;) {							\
-		prepare_to_wait(&wq, &__wait, TASK_KILLABLE);		\
-		if (condition)						\
-			break;						\
-		if (!fatal_signal_pending(current)) {			\
-			schedule();					\
-			continue;					\
-		}							\
-		ret = -ERESTARTSYS;					\
-		break;							\
-	}								\
-	finish_wait(&wq, &__wait);					\
-} while (0)
+	___wait_event(wq, condition, TASK_KILLABLE, 0, ret, schedule())
 
 /**
  * wait_event_killable - sleep until a condition gets true
-- 
cgit 


From ebdc195f2ec68576876216081035293e37318e86 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 2 Oct 2013 11:22:32 +0200
Subject: sched/wait: Collapse __wait_event_hrtimeout()

While not a whole-sale replacement like the others we can still reduce
the size of __wait_event_hrtimeout() considerably by noting that the
actual core of __wait_event_hrtimeout() is identical to what
___wait_event() generates.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092528.972793648@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/wait.h | 15 ++-------------
 1 file changed, 2 insertions(+), 13 deletions(-)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index ec3683ee0fc2..c065e8af9749 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -337,7 +337,6 @@ do {									\
 #define __wait_event_hrtimeout(wq, condition, timeout, state)		\
 ({									\
 	int __ret = 0;							\
-	DEFINE_WAIT(__wait);						\
 	struct hrtimer_sleeper __t;					\
 									\
 	hrtimer_init_on_stack(&__t.timer, CLOCK_MONOTONIC,		\
@@ -348,25 +347,15 @@ do {									\
 				       current->timer_slack_ns,		\
 				       HRTIMER_MODE_REL);		\
 									\
-	for (;;) {							\
-		prepare_to_wait(&wq, &__wait, state);			\
-		if (condition)						\
-			break;						\
-		if (state == TASK_INTERRUPTIBLE &&			\
-		    signal_pending(current)) {				\
-			__ret = -ERESTARTSYS;				\
-			break;						\
-		}							\
+	___wait_event(wq, condition, state, 0, __ret,			\
 		if (!__t.task) {					\
 			__ret = -ETIME;					\
 			break;						\
 		}							\
-		schedule();						\
-	}								\
+		schedule());						\
 									\
 	hrtimer_cancel(&__t.timer);					\
 	destroy_hrtimer_on_stack(&__t.timer);				\
-	finish_wait(&wq, &__wait);					\
 	__ret;								\
 })
 
-- 
cgit 


From 35a2af94c7ce7130ca292c68b1d27fcfdb648f6b Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 2 Oct 2013 11:22:33 +0200
Subject: sched/wait: Make the __wait_event*() interface more friendly

Change all __wait_event*() implementations to match the corresponding
wait_event*() signature for convenience.

In particular this does away with the weird 'ret' logic. Since there
are __wait_event*() users this requires we update them too.

Reviewed-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131002092529.042563462@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/mips/kernel/rtlx.c         |  19 ++++---
 include/linux/tty.h             |  10 ++--
 include/linux/wait.h            | 113 +++++++++++++++++++---------------------
 net/irda/af_irda.c              |   5 +-
 net/netfilter/ipvs/ip_vs_sync.c |   7 +--
 5 files changed, 73 insertions(+), 81 deletions(-)

diff --git a/arch/mips/kernel/rtlx.c b/arch/mips/kernel/rtlx.c
index d763f11e35e2..2c12ea1668d1 100644
--- a/arch/mips/kernel/rtlx.c
+++ b/arch/mips/kernel/rtlx.c
@@ -172,8 +172,9 @@ int rtlx_open(int index, int can_sleep)
 	if (rtlx == NULL) {
 		if( (p = vpe_get_shared(tclimit)) == NULL) {
 		    if (can_sleep) {
-			__wait_event_interruptible(channel_wqs[index].lx_queue,
-				(p = vpe_get_shared(tclimit)), ret);
+			ret = __wait_event_interruptible(
+					channel_wqs[index].lx_queue,
+					(p = vpe_get_shared(tclimit)));
 			if (ret)
 				goto out_fail;
 		    } else {
@@ -263,11 +264,10 @@ unsigned int rtlx_read_poll(int index, int can_sleep)
 	/* data available to read? */
 	if (chan->lx_read == chan->lx_write) {
 		if (can_sleep) {
-			int ret = 0;
-
-			__wait_event_interruptible(channel_wqs[index].lx_queue,
+			int ret = __wait_event_interruptible(
+				channel_wqs[index].lx_queue,
 				(chan->lx_read != chan->lx_write) ||
-				sp_stopping, ret);
+				sp_stopping);
 			if (ret)
 				return ret;
 
@@ -440,14 +440,13 @@ static ssize_t file_write(struct file *file, const char __user * buffer,
 
 	/* any space left... */
 	if (!rtlx_write_poll(minor)) {
-		int ret = 0;
+		int ret;
 
 		if (file->f_flags & O_NONBLOCK)
 			return -EAGAIN;
 
-		__wait_event_interruptible(channel_wqs[minor].rt_queue,
-					   rtlx_write_poll(minor),
-					   ret);
+		ret = __wait_event_interruptible(channel_wqs[minor].rt_queue,
+					   rtlx_write_poll(minor));
 		if (ret)
 			return ret;
 	}
diff --git a/include/linux/tty.h b/include/linux/tty.h
index 6e803291028f..633cac77f9f9 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -672,14 +672,14 @@ static inline void tty_wait_until_sent_from_close(struct tty_struct *tty,
 #define wait_event_interruptible_tty(tty, wq, condition)		\
 ({									\
 	int __ret = 0;							\
-	if (!(condition)) {						\
-		__wait_event_interruptible_tty(tty, wq, condition, __ret);	\
-	}								\
+	if (!(condition))						\
+		__ret = __wait_event_interruptible_tty(tty, wq,		\
+						       condition);	\
 	__ret;								\
 })
 
-#define __wait_event_interruptible_tty(tty, wq, condition, ret)		\
-	___wait_event(wq, condition, TASK_INTERRUPTIBLE, 0, ret,	\
+#define __wait_event_interruptible_tty(tty, wq, condition)		\
+	___wait_event(wq, condition, TASK_INTERRUPTIBLE, 0, 0,		\
 			tty_unlock(tty);				\
 			schedule();					\
 			tty_lock(tty))
diff --git a/include/linux/wait.h b/include/linux/wait.h
index c065e8af9749..bd4bd7b479b6 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -179,24 +179,23 @@ wait_queue_head_t *bit_waitqueue(void *, int);
 #define wake_up_interruptible_sync_poll(x, m)				\
 	__wake_up_sync_key((x), TASK_INTERRUPTIBLE, 1, (void *) (m))
 
-#define ___wait_cond_timeout(condition, ret)				\
+#define ___wait_cond_timeout(condition)					\
 ({									\
  	bool __cond = (condition);					\
- 	if (__cond && !ret)						\
- 		ret = 1;						\
- 	__cond || !ret;							\
+ 	if (__cond && !__ret)						\
+ 		__ret = 1;						\
+ 	__cond || !__ret;						\
 })
 
 #define ___wait_signal_pending(state)					\
 	((state == TASK_INTERRUPTIBLE && signal_pending(current)) ||	\
 	 (state == TASK_KILLABLE && fatal_signal_pending(current)))
 
-#define ___wait_nop_ret		int ret __always_unused
-
 #define ___wait_event(wq, condition, state, exclusive, ret, cmd)	\
-do {									\
+({									\
 	__label__ __out;						\
 	DEFINE_WAIT(__wait);						\
+	long __ret = ret;						\
 									\
 	for (;;) {							\
 		if (exclusive)						\
@@ -208,7 +207,7 @@ do {									\
 			break;						\
 									\
 		if (___wait_signal_pending(state)) {			\
-			ret = -ERESTARTSYS;				\
+			__ret = -ERESTARTSYS;				\
 			if (exclusive) {				\
 				abort_exclusive_wait(&wq, &__wait, 	\
 						     state, NULL); 	\
@@ -220,12 +219,12 @@ do {									\
 		cmd;							\
 	}								\
 	finish_wait(&wq, &__wait);					\
-__out:	;								\
-} while (0)
+__out:	__ret;								\
+})
 
 #define __wait_event(wq, condition) 					\
-	___wait_event(wq, condition, TASK_UNINTERRUPTIBLE, 0,		\
-		      ___wait_nop_ret, schedule())
+	(void)___wait_event(wq, condition, TASK_UNINTERRUPTIBLE, 0, 0,	\
+			    schedule())
 
 /**
  * wait_event - sleep until a condition gets true
@@ -246,10 +245,10 @@ do {									\
 	__wait_event(wq, condition);					\
 } while (0)
 
-#define __wait_event_timeout(wq, condition, ret)			\
-	___wait_event(wq, ___wait_cond_timeout(condition, ret), 	\
-		      TASK_UNINTERRUPTIBLE, 0, ret,			\
-		      ret = schedule_timeout(ret))
+#define __wait_event_timeout(wq, condition, timeout)			\
+	___wait_event(wq, ___wait_cond_timeout(condition),		\
+		      TASK_UNINTERRUPTIBLE, 0, timeout,			\
+		      __ret = schedule_timeout(__ret))
 
 /**
  * wait_event_timeout - sleep until a condition gets true or a timeout elapses
@@ -272,12 +271,12 @@ do {									\
 ({									\
 	long __ret = timeout;						\
 	if (!(condition)) 						\
-		__wait_event_timeout(wq, condition, __ret);		\
+		__ret = __wait_event_timeout(wq, condition, timeout);	\
 	__ret;								\
 })
 
-#define __wait_event_interruptible(wq, condition, ret)			\
-	___wait_event(wq, condition, TASK_INTERRUPTIBLE, 0, ret,	\
+#define __wait_event_interruptible(wq, condition)			\
+	___wait_event(wq, condition, TASK_INTERRUPTIBLE, 0, 0,		\
 		      schedule())
 
 /**
@@ -299,14 +298,14 @@ do {									\
 ({									\
 	int __ret = 0;							\
 	if (!(condition))						\
-		__wait_event_interruptible(wq, condition, __ret);	\
+		__ret = __wait_event_interruptible(wq, condition);	\
 	__ret;								\
 })
 
-#define __wait_event_interruptible_timeout(wq, condition, ret)		\
-	___wait_event(wq, ___wait_cond_timeout(condition, ret),		\
-		      TASK_INTERRUPTIBLE, 0, ret,			\
-		      ret = schedule_timeout(ret))
+#define __wait_event_interruptible_timeout(wq, condition, timeout)	\
+	___wait_event(wq, ___wait_cond_timeout(condition),		\
+		      TASK_INTERRUPTIBLE, 0, timeout,			\
+		      __ret = schedule_timeout(__ret))
 
 /**
  * wait_event_interruptible_timeout - sleep until a condition gets true or a timeout elapses
@@ -330,7 +329,8 @@ do {									\
 ({									\
 	long __ret = timeout;						\
 	if (!(condition))						\
-		__wait_event_interruptible_timeout(wq, condition, __ret); \
+		__ret = __wait_event_interruptible_timeout(wq, 		\
+						condition, timeout);	\
 	__ret;								\
 })
 
@@ -347,7 +347,7 @@ do {									\
 				       current->timer_slack_ns,		\
 				       HRTIMER_MODE_REL);		\
 									\
-	___wait_event(wq, condition, state, 0, __ret,			\
+	__ret = ___wait_event(wq, condition, state, 0, 0,		\
 		if (!__t.task) {					\
 			__ret = -ETIME;					\
 			break;						\
@@ -409,15 +409,15 @@ do {									\
 	__ret;								\
 })
 
-#define __wait_event_interruptible_exclusive(wq, condition, ret)	\
-	___wait_event(wq, condition, TASK_INTERRUPTIBLE, 1, ret,	\
+#define __wait_event_interruptible_exclusive(wq, condition)		\
+	___wait_event(wq, condition, TASK_INTERRUPTIBLE, 1, 0,		\
 		      schedule())
 
 #define wait_event_interruptible_exclusive(wq, condition)		\
 ({									\
 	int __ret = 0;							\
 	if (!(condition))						\
-		__wait_event_interruptible_exclusive(wq, condition, __ret);\
+		__ret = __wait_event_interruptible_exclusive(wq, condition);\
 	__ret;								\
 })
 
@@ -570,8 +570,8 @@ do {									\
 
 
 
-#define __wait_event_killable(wq, condition, ret)			\
-	___wait_event(wq, condition, TASK_KILLABLE, 0, ret, schedule())
+#define __wait_event_killable(wq, condition)				\
+	___wait_event(wq, condition, TASK_KILLABLE, 0, 0, schedule())
 
 /**
  * wait_event_killable - sleep until a condition gets true
@@ -592,18 +592,17 @@ do {									\
 ({									\
 	int __ret = 0;							\
 	if (!(condition))						\
-		__wait_event_killable(wq, condition, __ret);		\
+		__ret = __wait_event_killable(wq, condition);		\
 	__ret;								\
 })
 
 
 #define __wait_event_lock_irq(wq, condition, lock, cmd)			\
-	___wait_event(wq, condition, TASK_UNINTERRUPTIBLE, 0,		\
-		      ___wait_nop_ret,					\
-		      spin_unlock_irq(&lock);				\
-		      cmd;						\
-		      schedule();					\
-		      spin_lock_irq(&lock))
+	(void)___wait_event(wq, condition, TASK_UNINTERRUPTIBLE, 0, 0,	\
+			    spin_unlock_irq(&lock);			\
+			    cmd;					\
+			    schedule();					\
+			    spin_lock_irq(&lock))
 
 /**
  * wait_event_lock_irq_cmd - sleep until a condition gets true. The
@@ -663,11 +662,11 @@ do {									\
 } while (0)
 
 
-#define __wait_event_interruptible_lock_irq(wq, condition, lock, ret, cmd) \
-	___wait_event(wq, condition, TASK_INTERRUPTIBLE, 0, ret,	   \
-		      spin_unlock_irq(&lock);				   \
-		      cmd;						   \
-		      schedule();					   \
+#define __wait_event_interruptible_lock_irq(wq, condition, lock, cmd)	\
+	___wait_event(wq, condition, TASK_INTERRUPTIBLE, 0, 0,	   	\
+		      spin_unlock_irq(&lock);				\
+		      cmd;						\
+		      schedule();					\
 		      spin_lock_irq(&lock))
 
 /**
@@ -698,10 +697,9 @@ do {									\
 #define wait_event_interruptible_lock_irq_cmd(wq, condition, lock, cmd)	\
 ({									\
 	int __ret = 0;							\
-									\
 	if (!(condition))						\
-		__wait_event_interruptible_lock_irq(wq, condition,	\
-						    lock, __ret, cmd);	\
+		__ret = __wait_event_interruptible_lock_irq(wq, 	\
+						condition, lock, cmd);	\
 	__ret;								\
 })
 
@@ -730,18 +728,18 @@ do {									\
 #define wait_event_interruptible_lock_irq(wq, condition, lock)		\
 ({									\
 	int __ret = 0;							\
-									\
 	if (!(condition))						\
-		__wait_event_interruptible_lock_irq(wq, condition,	\
-						    lock, __ret, );	\
+		__ret = __wait_event_interruptible_lock_irq(wq,		\
+						condition, lock,)	\
 	__ret;								\
 })
 
-#define __wait_event_interruptible_lock_irq_timeout(wq, condition, lock, ret) \
-	___wait_event(wq, ___wait_cond_timeout(condition, ret),		      \
-		      TASK_INTERRUPTIBLE, 0, ret,	      		      \
-		      spin_unlock_irq(&lock);				      \
-		      ret = schedule_timeout(ret);			      \
+#define __wait_event_interruptible_lock_irq_timeout(wq, condition, 	\
+						    lock, timeout) 	\
+	___wait_event(wq, ___wait_cond_timeout(condition),		\
+		      TASK_INTERRUPTIBLE, 0, ret,	      		\
+		      spin_unlock_irq(&lock);				\
+		      __ret = schedule_timeout(__ret);			\
 		      spin_lock_irq(&lock));
 
 /**
@@ -771,11 +769,10 @@ do {									\
 #define wait_event_interruptible_lock_irq_timeout(wq, condition, lock,	\
 						  timeout)		\
 ({									\
-	int __ret = timeout;						\
-									\
+	long __ret = timeout;						\
 	if (!(condition))						\
-		__wait_event_interruptible_lock_irq_timeout(		\
-					wq, condition, lock, __ret);	\
+		__ret = __wait_event_interruptible_lock_irq_timeout(	\
+					wq, condition, lock, timeout);	\
 	__ret;								\
 })
 
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index 0578d4fa00a9..0f676908d15b 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -2563,9 +2563,8 @@ bed:
 				  jiffies + msecs_to_jiffies(val));
 
 			/* Wait for IR-LMP to call us back */
-			__wait_event_interruptible(self->query_wait,
-			      (self->cachedaddr != 0 || self->errno == -ETIME),
-						   err);
+			err = __wait_event_interruptible(self->query_wait,
+			      (self->cachedaddr != 0 || self->errno == -ETIME));
 
 			/* If watchdog is still activated, kill it! */
 			del_timer(&(self->watchdog));
diff --git a/net/netfilter/ipvs/ip_vs_sync.c b/net/netfilter/ipvs/ip_vs_sync.c
index f4484719f3e6..f63c2388f38d 100644
--- a/net/netfilter/ipvs/ip_vs_sync.c
+++ b/net/netfilter/ipvs/ip_vs_sync.c
@@ -1637,12 +1637,9 @@ static int sync_thread_master(void *data)
 			continue;
 		}
 		while (ip_vs_send_sync_msg(tinfo->sock, sb->mesg) < 0) {
-			int ret = 0;
-
-			__wait_event_interruptible(*sk_sleep(sk),
+			int ret = __wait_event_interruptible(*sk_sleep(sk),
 						   sock_writeable(sk) ||
-						   kthread_should_stop(),
-						   ret);
+						   kthread_should_stop());
 			if (unlikely(kthread_should_stop()))
 				goto done;
 		}
-- 
cgit 


From c2eb505b9b24d5e912798c033814ff429b1a8823 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 2 Oct 2013 11:49:47 +0200
Subject: MAINTAINERS, sched: Update file pattern

Took a while to sort out these bits and we'd like to be Cc:-ed on
future modifications to the waitqueue APIs and all that.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/n/tip-0ix315c7qcz88slmnrpshvmf@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 MAINTAINERS | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index e61c2e83fc2b..efdfcb2de523 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7256,6 +7256,8 @@ S:	Maintained
 F:	kernel/sched/
 F:	include/linux/sched.h
 F:	include/uapi/linux/sched.h
+F:	kernel/wait.c
+F:	include/linux/wait.h
 
 SCORE ARCHITECTURE
 M:	Chen Liqin <liqin.chen@sunplusct.com>
-- 
cgit 


From bef292a72daf215c00aa20f68603de181afbb4d3 Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Thu, 3 Oct 2013 18:43:20 +0100
Subject: GFS2: Remove obsolete quota tunable

There is no need for a paramater which relates to the internals
of quota to be exposed to users. The only possible use would be
to turn it up so large that the memory allocation fails. So lets
remove it and set it to a sensible value which ensures that we
don't ask for multipage allocations.

Currently the size of struct gfs2_holder means that the caluclated
value is identical to the previous default value, so there should
be no functional change.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: Abhijith Das <adas@redhat.com>
---
 fs/gfs2/incore.h     | 1 -
 fs/gfs2/ops_fstype.c | 1 -
 fs/gfs2/quota.c      | 2 +-
 fs/gfs2/sys.c        | 2 --
 4 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index 082c8fa7fab9..37b3cd795d6c 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -537,7 +537,6 @@ struct gfs2_tune {
 
 	unsigned int gt_logd_secs;
 
-	unsigned int gt_quota_simul_sync; /* Max quotavals to sync at once */
 	unsigned int gt_quota_warn_period; /* Secs between quota warn msgs */
 	unsigned int gt_quota_scale_num; /* Numerator */
 	unsigned int gt_quota_scale_den; /* Denominator */
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 19ff5e8c285c..8e40fda985d6 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -51,7 +51,6 @@ static void gfs2_tune_init(struct gfs2_tune *gt)
 {
 	spin_lock_init(&gt->gt_spin);
 
-	gt->gt_quota_simul_sync = 64;
 	gt->gt_quota_warn_period = 10;
 	gt->gt_quota_scale_num = 1;
 	gt->gt_quota_scale_den = 1;
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index fd1ec5243d2e..658abe26a098 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -1140,7 +1140,7 @@ int gfs2_quota_sync(struct super_block *sb, int type)
 {
 	struct gfs2_sbd *sdp = sb->s_fs_info;
 	struct gfs2_quota_data **qda;
-	unsigned int max_qd = gfs2_tune_get(sdp, gt_quota_simul_sync);
+	unsigned int max_qd = PAGE_SIZE/sizeof(struct gfs2_holder);
 	unsigned int num_qd;
 	unsigned int x;
 	int error = 0;
diff --git a/fs/gfs2/sys.c b/fs/gfs2/sys.c
index aa5c48044966..d09f6edda0ff 100644
--- a/fs/gfs2/sys.c
+++ b/fs/gfs2/sys.c
@@ -587,7 +587,6 @@ TUNE_ATTR(max_readahead, 0);
 TUNE_ATTR(complain_secs, 0);
 TUNE_ATTR(statfs_slow, 0);
 TUNE_ATTR(new_files_jdata, 0);
-TUNE_ATTR(quota_simul_sync, 1);
 TUNE_ATTR(statfs_quantum, 1);
 TUNE_ATTR_3(quota_scale, quota_scale_show, quota_scale_store);
 
@@ -597,7 +596,6 @@ static struct attribute *tune_attrs[] = {
 	&tune_attr_max_readahead.attr,
 	&tune_attr_complain_secs.attr,
 	&tune_attr_statfs_slow.attr,
-	&tune_attr_quota_simul_sync.attr,
 	&tune_attr_statfs_quantum.attr,
 	&tune_attr_quota_scale.attr,
 	&tune_attr_new_files_jdata.attr,
-- 
cgit 


From 1bf59bf6ded8411058b4c9acc45d9dd8d6965464 Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Fri, 4 Oct 2013 11:14:46 +0100
Subject: GFS2: Make two similar quota code fragments into a function

There should be no functional change bar the removal of a
test of the MS_READONLY flag which would never be reachable.
This merges the common code from qd_fish and qd_trylock into
a single function and calls it from both those places.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: Abhijith Das <adas@redhat.com>
---
 fs/gfs2/quota.c | 60 +++++++++++++++++++++++++--------------------------------
 1 file changed, 26 insertions(+), 34 deletions(-)

diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 658abe26a098..75414e773ab4 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -383,6 +383,25 @@ static void bh_put(struct gfs2_quota_data *qd)
 	mutex_unlock(&sdp->sd_quota_mutex);
 }
 
+static int qd_check_sync(struct gfs2_sbd *sdp, struct gfs2_quota_data *qd,
+			 u64 *sync_gen)
+{
+	if (test_bit(QDF_LOCKED, &qd->qd_flags) ||
+	    !test_bit(QDF_CHANGE, &qd->qd_flags) ||
+	    (sync_gen && (qd->qd_sync_gen >= *sync_gen)))
+		return 0;
+
+	list_move_tail(&qd->qd_list, &sdp->sd_quota_list);
+
+	set_bit(QDF_LOCKED, &qd->qd_flags);
+	gfs2_assert_warn(sdp, atomic_read(&qd->qd_count));
+	atomic_inc(&qd->qd_count);
+	qd->qd_change_sync = qd->qd_change;
+	gfs2_assert_warn(sdp, qd->qd_slot_count);
+	qd->qd_slot_count++;
+	return 1;
+}
+
 static int qd_fish(struct gfs2_sbd *sdp, struct gfs2_quota_data **qdp)
 {
 	struct gfs2_quota_data *qd = NULL;
@@ -397,22 +416,9 @@ static int qd_fish(struct gfs2_sbd *sdp, struct gfs2_quota_data **qdp)
 	spin_lock(&qd_lru_lock);
 
 	list_for_each_entry(qd, &sdp->sd_quota_list, qd_list) {
-		if (test_bit(QDF_LOCKED, &qd->qd_flags) ||
-		    !test_bit(QDF_CHANGE, &qd->qd_flags) ||
-		    qd->qd_sync_gen >= sdp->sd_quota_sync_gen)
-			continue;
-
-		list_move_tail(&qd->qd_list, &sdp->sd_quota_list);
-
-		set_bit(QDF_LOCKED, &qd->qd_flags);
-		gfs2_assert_warn(sdp, atomic_read(&qd->qd_count));
-		atomic_inc(&qd->qd_count);
-		qd->qd_change_sync = qd->qd_change;
-		gfs2_assert_warn(sdp, qd->qd_slot_count);
-		qd->qd_slot_count++;
-		found = 1;
-
-		break;
+		found = qd_check_sync(sdp, qd, &sdp->sd_quota_sync_gen);
+		if (found)
+			break;
 	}
 
 	if (!found)
@@ -439,28 +445,14 @@ static int qd_fish(struct gfs2_sbd *sdp, struct gfs2_quota_data **qdp)
 static int qd_trylock(struct gfs2_quota_data *qd)
 {
 	struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;
-
-	if (sdp->sd_vfs->s_flags & MS_RDONLY)
-		return 0;
+	int found;
 
 	spin_lock(&qd_lru_lock);
+	found = qd_check_sync(sdp, qd, NULL);
+	spin_unlock(&qd_lru_lock);
 
-	if (test_bit(QDF_LOCKED, &qd->qd_flags) ||
-	    !test_bit(QDF_CHANGE, &qd->qd_flags)) {
-		spin_unlock(&qd_lru_lock);
+	if (!found)
 		return 0;
-	}
-
-	list_move_tail(&qd->qd_list, &sdp->sd_quota_list);
-
-	set_bit(QDF_LOCKED, &qd->qd_flags);
-	gfs2_assert_warn(sdp, atomic_read(&qd->qd_count));
-	atomic_inc(&qd->qd_count);
-	qd->qd_change_sync = qd->qd_change;
-	gfs2_assert_warn(sdp, qd->qd_slot_count);
-	qd->qd_slot_count++;
-
-	spin_unlock(&qd_lru_lock);
 
 	gfs2_assert_warn(sdp, qd->qd_change_sync);
 	if (bh_get(qd)) {
-- 
cgit 


From aabd7c72f52145fcf13f9251770b0b0246b5e406 Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Fri, 4 Oct 2013 11:31:05 +0100
Subject: GFS2: Inline qd_trylock into gfs2_quota_unlock

The function qd_trylock was not a trylock despite its name and
can be inlined into gfs2_quota_unlock in order to make the
code a bit clearer. There should be no functional change as a
result of this patch.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: Abhijith Das <adas@redhat.com>
---
 fs/gfs2/quota.c | 45 ++++++++++++++++++++-------------------------
 1 file changed, 20 insertions(+), 25 deletions(-)

diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 75414e773ab4..cfb4cdeddacb 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -442,29 +442,6 @@ static int qd_fish(struct gfs2_sbd *sdp, struct gfs2_quota_data **qdp)
 	return 0;
 }
 
-static int qd_trylock(struct gfs2_quota_data *qd)
-{
-	struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;
-	int found;
-
-	spin_lock(&qd_lru_lock);
-	found = qd_check_sync(sdp, qd, NULL);
-	spin_unlock(&qd_lru_lock);
-
-	if (!found)
-		return 0;
-
-	gfs2_assert_warn(sdp, qd->qd_change_sync);
-	if (bh_get(qd)) {
-		clear_bit(QDF_LOCKED, &qd->qd_flags);
-		slot_put(qd);
-		qd_put(qd);
-		return 0;
-	}
-
-	return 1;
-}
-
 static void qd_unlock(struct gfs2_quota_data *qd)
 {
 	gfs2_assert_warn(qd->qd_gl->gl_sbd,
@@ -1015,9 +992,11 @@ static int need_sync(struct gfs2_quota_data *qd)
 
 void gfs2_quota_unlock(struct gfs2_inode *ip)
 {
+	struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
 	struct gfs2_quota_data *qda[4];
 	unsigned int count = 0;
 	unsigned int x;
+	int found;
 
 	if (!test_and_clear_bit(GIF_QD_LOCKED, &ip->i_flags))
 		goto out;
@@ -1030,9 +1009,25 @@ void gfs2_quota_unlock(struct gfs2_inode *ip)
 		sync = need_sync(qd);
 
 		gfs2_glock_dq_uninit(&ip->i_res->rs_qa_qd_ghs[x]);
+		if (!sync)
+			continue;
+
+		spin_lock(&qd_lru_lock);
+		found = qd_check_sync(sdp, qd, NULL);
+		spin_unlock(&qd_lru_lock);
+
+		if (!found)
+			continue;
+
+		gfs2_assert_warn(sdp, qd->qd_change_sync);
+		if (bh_get(qd)) {
+			clear_bit(QDF_LOCKED, &qd->qd_flags);
+			slot_put(qd);
+			qd_put(qd);
+			continue;
+		}
 
-		if (sync && qd_trylock(qd))
-			qda[count++] = qd;
+		qda[count++] = qd;
 	}
 
 	if (count) {
-- 
cgit 


From 4040394e12cb1eed21d1306cacdc8a6f0464c8e2 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Fri, 4 Oct 2013 11:42:53 +0100
Subject: regulator: core: Always warn when using a dummy regulator

This helps people spot if they have missed a supply from a device tree or
equivalent data structure.

Suggested-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/core.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index a40055edaae4..82805e2d8a64 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1281,13 +1281,8 @@ static struct regulator *_regulator_get(struct device *dev, const char *id,
 	 * even if it isn't hooked up and just provide a dummy.
 	 */
 	if (has_full_constraints && allow_dummy) {
-		/*
-		 * Log the substitution if regulator configuration is
-		 * not complete to help development.
-		 */
-		if (!has_full_constraints)
-			pr_warn("%s supply %s not found, using dummy regulator\n",
-				devname, id);
+		pr_warn("%s supply %s not found, using dummy regulator\n",
+			devname, id);
 
 		rdev = dummy_regulator_rdev;
 		goto found;
-- 
cgit 


From 6653efb75dcac8fc61191cba9bd6dda99137bc44 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 4 Oct 2013 15:18:18 +0530
Subject: regulator: gpio: Remove redundant break

'break' after goto has no effect. Remove it.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/gpio-regulator.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c
index 98a98ffa7fe0..04406a918c04 100644
--- a/drivers/regulator/gpio-regulator.c
+++ b/drivers/regulator/gpio-regulator.c
@@ -283,7 +283,6 @@ static int gpio_regulator_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "No regulator type set\n");
 		ret = -EINVAL;
 		goto err_memgpio;
-		break;
 	}
 
 	drvdata->nr_gpios = config->nr_gpios;
-- 
cgit 


From e46c772dbafc2059b0c7ee87c6a7232baadaf6c7 Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Fri, 4 Oct 2013 12:29:34 +0100
Subject: GFS2: Protect quota sync generation

Now that gfs2_quota_sync can be potentially called from multiple
threads, we should protect this bit of code, and the sync generation
number in particular in order to ensure that there are no races
when syncing quotas.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Cc: Abhijith Das <adas@redhat.com>
---
 fs/gfs2/incore.h     | 1 +
 fs/gfs2/ops_fstype.c | 1 +
 fs/gfs2/quota.c      | 6 ++++--
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index 37b3cd795d6c..2ab4f8d8f4c4 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -714,6 +714,7 @@ struct gfs2_sbd {
 	struct list_head sd_quota_list;
 	atomic_t sd_quota_count;
 	struct mutex sd_quota_mutex;
+	struct mutex sd_quota_sync_mutex;
 	wait_queue_head_t sd_quota_wait;
 	struct list_head sd_trunc_list;
 	spinlock_t sd_trunc_lock;
diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c
index 8e40fda985d6..82303b474958 100644
--- a/fs/gfs2/ops_fstype.c
+++ b/fs/gfs2/ops_fstype.c
@@ -93,6 +93,7 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb)
 
 	INIT_LIST_HEAD(&sdp->sd_quota_list);
 	mutex_init(&sdp->sd_quota_mutex);
+	mutex_init(&sdp->sd_quota_sync_mutex);
 	init_waitqueue_head(&sdp->sd_quota_wait);
 	INIT_LIST_HEAD(&sdp->sd_trunc_list);
 	spin_lock_init(&sdp->sd_trunc_lock);
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index cfb4cdeddacb..4a9726aa191f 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -1132,12 +1132,13 @@ int gfs2_quota_sync(struct super_block *sb, int type)
 	unsigned int x;
 	int error = 0;
 
-	sdp->sd_quota_sync_gen++;
-
 	qda = kcalloc(max_qd, sizeof(struct gfs2_quota_data *), GFP_KERNEL);
 	if (!qda)
 		return -ENOMEM;
 
+	mutex_lock(&sdp->sd_quota_sync_mutex);
+	sdp->sd_quota_sync_gen++;
+
 	do {
 		num_qd = 0;
 
@@ -1162,6 +1163,7 @@ int gfs2_quota_sync(struct super_block *sb, int type)
 		}
 	} while (!error && num_qd == max_qd);
 
+	mutex_unlock(&sdp->sd_quota_sync_mutex);
 	kfree(qda);
 
 	return error;
-- 
cgit 


From fb869b6e91a3ac235f237f73305ecf34cdc4969b Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Fri, 4 Oct 2013 10:24:49 +0200
Subject: sched/wait: Clean up wait.h details a bit

Since we are changing wait.h profoundly, use the opportunity to:

 - add a sentence to explain what this file is about
 - remove whitespace noise
 - prettify weird looking line break fixup attempts
 - standardize type definition and initialization sequences
 - use consistent style details

No code is changed.

Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/n/tip-O8dIie5swnctqpupakatvqyq@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/wait.h | 124 +++++++++++++++++++++++++--------------------------
 1 file changed, 60 insertions(+), 64 deletions(-)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index bd4bd7b479b6..a2726c7dd244 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -1,7 +1,8 @@
 #ifndef _LINUX_WAIT_H
 #define _LINUX_WAIT_H
-
-
+/*
+ * Linux wait queue related types and methods
+ */
 #include <linux/list.h>
 #include <linux/stddef.h>
 #include <linux/spinlock.h>
@@ -13,27 +14,27 @@ typedef int (*wait_queue_func_t)(wait_queue_t *wait, unsigned mode, int flags, v
 int default_wake_function(wait_queue_t *wait, unsigned mode, int flags, void *key);
 
 struct __wait_queue {
-	unsigned int flags;
+	unsigned int		flags;
 #define WQ_FLAG_EXCLUSIVE	0x01
-	void *private;
-	wait_queue_func_t func;
-	struct list_head task_list;
+	void			*private;
+	wait_queue_func_t	func;
+	struct list_head	task_list;
 };
 
 struct wait_bit_key {
-	void *flags;
-	int bit_nr;
-#define WAIT_ATOMIC_T_BIT_NR -1
+	void			*flags;
+	int			bit_nr;
+#define WAIT_ATOMIC_T_BIT_NR	-1
 };
 
 struct wait_bit_queue {
-	struct wait_bit_key key;
-	wait_queue_t wait;
+	struct wait_bit_key	key;
+	wait_queue_t		wait;
 };
 
 struct __wait_queue_head {
-	spinlock_t lock;
-	struct list_head task_list;
+	spinlock_t		lock;
+	struct list_head	task_list;
 };
 typedef struct __wait_queue_head wait_queue_head_t;
 
@@ -84,17 +85,17 @@ extern void __init_waitqueue_head(wait_queue_head_t *q, const char *name, struct
 
 static inline void init_waitqueue_entry(wait_queue_t *q, struct task_struct *p)
 {
-	q->flags = 0;
-	q->private = p;
-	q->func = default_wake_function;
+	q->flags	= 0;
+	q->private	= p;
+	q->func		= default_wake_function;
 }
 
-static inline void init_waitqueue_func_entry(wait_queue_t *q,
-					wait_queue_func_t func)
+static inline void
+init_waitqueue_func_entry(wait_queue_t *q, wait_queue_func_t func)
 {
-	q->flags = 0;
-	q->private = NULL;
-	q->func = func;
+	q->flags	= 0;
+	q->private	= NULL;
+	q->func		= func;
 }
 
 static inline int waitqueue_active(wait_queue_head_t *q)
@@ -114,8 +115,8 @@ static inline void __add_wait_queue(wait_queue_head_t *head, wait_queue_t *new)
 /*
  * Used for wake-one threads:
  */
-static inline void __add_wait_queue_exclusive(wait_queue_head_t *q,
-					      wait_queue_t *wait)
+static inline void
+__add_wait_queue_exclusive(wait_queue_head_t *q, wait_queue_t *wait)
 {
 	wait->flags |= WQ_FLAG_EXCLUSIVE;
 	__add_wait_queue(q, wait);
@@ -127,23 +128,22 @@ static inline void __add_wait_queue_tail(wait_queue_head_t *head,
 	list_add_tail(&new->task_list, &head->task_list);
 }
 
-static inline void __add_wait_queue_tail_exclusive(wait_queue_head_t *q,
-					      wait_queue_t *wait)
+static inline void
+__add_wait_queue_tail_exclusive(wait_queue_head_t *q, wait_queue_t *wait)
 {
 	wait->flags |= WQ_FLAG_EXCLUSIVE;
 	__add_wait_queue_tail(q, wait);
 }
 
-static inline void __remove_wait_queue(wait_queue_head_t *head,
-							wait_queue_t *old)
+static inline void
+__remove_wait_queue(wait_queue_head_t *head, wait_queue_t *old)
 {
 	list_del(&old->task_list);
 }
 
 void __wake_up(wait_queue_head_t *q, unsigned int mode, int nr, void *key);
 void __wake_up_locked_key(wait_queue_head_t *q, unsigned int mode, void *key);
-void __wake_up_sync_key(wait_queue_head_t *q, unsigned int mode, int nr,
-			void *key);
+void __wake_up_sync_key(wait_queue_head_t *q, unsigned int mode, int nr, void *key);
 void __wake_up_locked(wait_queue_head_t *q, unsigned int mode, int nr);
 void __wake_up_sync(wait_queue_head_t *q, unsigned int mode, int nr);
 void __wake_up_bit(wait_queue_head_t *, void *, int);
@@ -170,21 +170,21 @@ wait_queue_head_t *bit_waitqueue(void *, int);
 /*
  * Wakeup macros to be used to report events to the targets.
  */
-#define wake_up_poll(x, m)				\
+#define wake_up_poll(x, m)						\
 	__wake_up(x, TASK_NORMAL, 1, (void *) (m))
-#define wake_up_locked_poll(x, m)				\
+#define wake_up_locked_poll(x, m)					\
 	__wake_up_locked_key((x), TASK_NORMAL, (void *) (m))
-#define wake_up_interruptible_poll(x, m)			\
+#define wake_up_interruptible_poll(x, m)				\
 	__wake_up(x, TASK_INTERRUPTIBLE, 1, (void *) (m))
 #define wake_up_interruptible_sync_poll(x, m)				\
 	__wake_up_sync_key((x), TASK_INTERRUPTIBLE, 1, (void *) (m))
 
 #define ___wait_cond_timeout(condition)					\
 ({									\
- 	bool __cond = (condition);					\
- 	if (__cond && !__ret)						\
- 		__ret = 1;						\
- 	__cond || !__ret;						\
+	bool __cond = (condition);					\
+	if (__cond && !__ret)						\
+		__ret = 1;						\
+	__cond || !__ret;						\
 })
 
 #define ___wait_signal_pending(state)					\
@@ -209,8 +209,8 @@ wait_queue_head_t *bit_waitqueue(void *, int);
 		if (___wait_signal_pending(state)) {			\
 			__ret = -ERESTARTSYS;				\
 			if (exclusive) {				\
-				abort_exclusive_wait(&wq, &__wait, 	\
-						     state, NULL); 	\
+				abort_exclusive_wait(&wq, &__wait,	\
+						     state, NULL);	\
 				goto __out;				\
 			}						\
 			break;						\
@@ -222,7 +222,7 @@ wait_queue_head_t *bit_waitqueue(void *, int);
 __out:	__ret;								\
 })
 
-#define __wait_event(wq, condition) 					\
+#define __wait_event(wq, condition)					\
 	(void)___wait_event(wq, condition, TASK_UNINTERRUPTIBLE, 0, 0,	\
 			    schedule())
 
@@ -238,9 +238,9 @@ __out:	__ret;								\
  * wake_up() has to be called after changing any variable that could
  * change the result of the wait condition.
  */
-#define wait_event(wq, condition) 					\
+#define wait_event(wq, condition)					\
 do {									\
-	if (condition)	 						\
+	if (condition)							\
 		break;							\
 	__wait_event(wq, condition);					\
 } while (0)
@@ -270,7 +270,7 @@ do {									\
 #define wait_event_timeout(wq, condition, timeout)			\
 ({									\
 	long __ret = timeout;						\
-	if (!(condition)) 						\
+	if (!(condition))						\
 		__ret = __wait_event_timeout(wq, condition, timeout);	\
 	__ret;								\
 })
@@ -329,7 +329,7 @@ do {									\
 ({									\
 	long __ret = timeout;						\
 	if (!(condition))						\
-		__ret = __wait_event_interruptible_timeout(wq, 		\
+		__ret = __wait_event_interruptible_timeout(wq,		\
 						condition, timeout);	\
 	__ret;								\
 })
@@ -569,7 +569,6 @@ do {									\
 	 ? 0 : __wait_event_interruptible_locked(wq, condition, 1, 1))
 
 
-
 #define __wait_event_killable(wq, condition)				\
 	___wait_event(wq, condition, TASK_KILLABLE, 0, 0, schedule())
 
@@ -663,7 +662,7 @@ do {									\
 
 
 #define __wait_event_interruptible_lock_irq(wq, condition, lock, cmd)	\
-	___wait_event(wq, condition, TASK_INTERRUPTIBLE, 0, 0,	   	\
+	___wait_event(wq, condition, TASK_INTERRUPTIBLE, 0, 0,		\
 		      spin_unlock_irq(&lock);				\
 		      cmd;						\
 		      schedule();					\
@@ -698,7 +697,7 @@ do {									\
 ({									\
 	int __ret = 0;							\
 	if (!(condition))						\
-		__ret = __wait_event_interruptible_lock_irq(wq, 	\
+		__ret = __wait_event_interruptible_lock_irq(wq,		\
 						condition, lock, cmd);	\
 	__ret;								\
 })
@@ -734,18 +733,18 @@ do {									\
 	__ret;								\
 })
 
-#define __wait_event_interruptible_lock_irq_timeout(wq, condition, 	\
-						    lock, timeout) 	\
+#define __wait_event_interruptible_lock_irq_timeout(wq, condition,	\
+						    lock, timeout)	\
 	___wait_event(wq, ___wait_cond_timeout(condition),		\
-		      TASK_INTERRUPTIBLE, 0, ret,	      		\
+		      TASK_INTERRUPTIBLE, 0, ret,			\
 		      spin_unlock_irq(&lock);				\
 		      __ret = schedule_timeout(__ret);			\
 		      spin_lock_irq(&lock));
 
 /**
- * wait_event_interruptible_lock_irq_timeout - sleep until a condition gets true or a timeout elapses.
- *		The condition is checked under the lock. This is expected
- *		to be called with the lock taken.
+ * wait_event_interruptible_lock_irq_timeout - sleep until a condition gets
+ *		true or a timeout elapses. The condition is checked under
+ *		the lock. This is expected to be called with the lock taken.
  * @wq: the waitqueue to wait on
  * @condition: a C expression for the event to wait for
  * @lock: a locked spinlock_t, which will be released before schedule()
@@ -783,11 +782,9 @@ do {									\
  * We plan to remove these interfaces.
  */
 extern void sleep_on(wait_queue_head_t *q);
-extern long sleep_on_timeout(wait_queue_head_t *q,
-				      signed long timeout);
+extern long sleep_on_timeout(wait_queue_head_t *q, signed long timeout);
 extern void interruptible_sleep_on(wait_queue_head_t *q);
-extern long interruptible_sleep_on_timeout(wait_queue_head_t *q,
-					   signed long timeout);
+extern long interruptible_sleep_on_timeout(wait_queue_head_t *q, signed long timeout);
 
 /*
  * Waitqueues which are removed from the waitqueue_head at wakeup time
@@ -795,8 +792,7 @@ extern long interruptible_sleep_on_timeout(wait_queue_head_t *q,
 void prepare_to_wait(wait_queue_head_t *q, wait_queue_t *wait, int state);
 void prepare_to_wait_exclusive(wait_queue_head_t *q, wait_queue_t *wait, int state);
 void finish_wait(wait_queue_head_t *q, wait_queue_t *wait);
-void abort_exclusive_wait(wait_queue_head_t *q, wait_queue_t *wait,
-			unsigned int mode, void *key);
+void abort_exclusive_wait(wait_queue_head_t *q, wait_queue_t *wait, unsigned int mode, void *key);
 int autoremove_wake_function(wait_queue_t *wait, unsigned mode, int sync, void *key);
 int wake_bit_function(wait_queue_t *wait, unsigned mode, int sync, void *key);
 
@@ -842,8 +838,8 @@ int wake_bit_function(wait_queue_t *wait, unsigned mode, int sync, void *key);
  * One uses wait_on_bit() where one is waiting for the bit to clear,
  * but has no intention of setting it.
  */
-static inline int wait_on_bit(void *word, int bit,
-				int (*action)(void *), unsigned mode)
+static inline int
+wait_on_bit(void *word, int bit, int (*action)(void *), unsigned mode)
 {
 	if (!test_bit(bit, word))
 		return 0;
@@ -866,8 +862,8 @@ static inline int wait_on_bit(void *word, int bit,
  * One uses wait_on_bit_lock() where one is waiting for the bit to
  * clear with the intention of setting it, and when done, clearing it.
  */
-static inline int wait_on_bit_lock(void *word, int bit,
-				int (*action)(void *), unsigned mode)
+static inline int
+wait_on_bit_lock(void *word, int bit, int (*action)(void *), unsigned mode)
 {
 	if (!test_and_set_bit(bit, word))
 		return 0;
@@ -891,5 +887,5 @@ int wait_on_atomic_t(atomic_t *val, int (*action)(atomic_t *), unsigned mode)
 		return 0;
 	return out_of_line_wait_on_atomic_t(val, action, mode);
 }
-	
-#endif
+
+#endif /* _LINUX_WAIT_H */
-- 
cgit 


From 05104a4e8713b27291c7bb49c1e7e68b4e243571 Mon Sep 17 00:00:00 2001
From: Neil Horman <nhorman@tuxdriver.com>
Date: Fri, 27 Sep 2013 12:53:35 -0400
Subject: iommu: Remove stack trace from broken irq remapping warning

The warning for the irq remapping broken check in intel_irq_remapping.c is
pretty pointless.  We need the warning, but we know where its comming from, the
stack trace will always be the same, and it needlessly triggers things like
Abrt.  This changes the warning to just print a text warning about BIOS being
broken, without the stack trace, then sets the appropriate taint bit.  Since we
automatically disable irq remapping, theres no need to contiue making Abrt jump
at this problem

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Joerg Roedel <joro@8bytes.org>
CC: Bjorn Helgaas <bhelgaas@google.com>
CC: Andy Lutomirski <luto@amacapital.net>
CC: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
CC: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---
 drivers/iommu/intel_irq_remapping.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index f71673dbb23d..b97d70b1abe0 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -525,12 +525,13 @@ static int __init intel_irq_remapping_supported(void)
 	if (disable_irq_remap)
 		return 0;
 	if (irq_remap_broken) {
-		WARN_TAINT(1, TAINT_FIRMWARE_WORKAROUND,
-			   "This system BIOS has enabled interrupt remapping\n"
-			   "on a chipset that contains an erratum making that\n"
-			   "feature unstable.  To maintain system stability\n"
-			   "interrupt remapping is being disabled.  Please\n"
-			   "contact your BIOS vendor for an update\n");
+		printk(KERN_WARNING
+			"This system BIOS has enabled interrupt remapping\n"
+			"on a chipset that contains an erratum making that\n"
+			"feature unstable.  To maintain system stability\n"
+			"interrupt remapping is being disabled.  Please\n"
+			"contact your BIOS vendor for an update\n");
+		add_taint(TAINT_FIRMWARE_WORKAROUND, LOCKDEP_STILL_OK);
 		disable_irq_remap = 1;
 		return 0;
 	}
-- 
cgit 


From e79c8a06afe4a7d4b4df686e05028cd5660bea96 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 09:44:43 +0530
Subject: usb: musb_am335x: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/musb/musb_am335x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/musb/musb_am335x.c b/drivers/usb/musb/musb_am335x.c
index 41ac5b5b57ce..8be9b02c3cc2 100644
--- a/drivers/usb/musb/musb_am335x.c
+++ b/drivers/usb/musb/musb_am335x.c
@@ -46,7 +46,7 @@ static struct platform_driver am335x_child_driver = {
 	.remove         = am335x_child_remove,
 	.driver         = {
 		.name   = "am335x-usb-childs",
-		.of_match_table	= of_match_ptr(am335x_child_of_match),
+		.of_match_table	= am335x_child_of_match,
 	},
 };
 
-- 
cgit 


From 8e933359ee2c3a861d5022b83110ce88ba3a2dda Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Tue, 24 Sep 2013 11:53:47 +0300
Subject: usb: phy: generic: Add gpio_reset to platform data

The GPIO number of the RESET line can be passed to the
driver using the gpio_reset member.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 include/linux/usb/usb_phy_gen_xceiv.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/usb/usb_phy_gen_xceiv.h b/include/linux/usb/usb_phy_gen_xceiv.h
index f9a7e7bc925b..42f3b71a9775 100644
--- a/include/linux/usb/usb_phy_gen_xceiv.h
+++ b/include/linux/usb/usb_phy_gen_xceiv.h
@@ -9,7 +9,8 @@ struct usb_phy_gen_xceiv_platform_data {
 
 	/* if set fails with -EPROBE_DEFER if can't get regulator */
 	unsigned int needs_vcc:1;
-	unsigned int needs_reset:1;
+	unsigned int needs_reset:1;	/* deprecated */
+	int gpio_reset;
 };
 
 #if IS_ENABLED(CONFIG_NOP_USB_XCEIV)
-- 
cgit 


From bd27fa44e13830d2baa278d5702e766380659cb3 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Tue, 24 Sep 2013 11:53:48 +0300
Subject: usb: phy: generic: Don't use regulator framework for RESET line

Modelling the RESET line as a regulator supply wasn't a good idea
as it kind of abuses the regulator framework and also makes adaptation
code more complex.

Instead, manage the RESET gpio line directly in the driver. Update
the device tree binding information.

This also makes us easy to migrate to a dedicated GPIO RESET controller
whenever it becomes available.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 .../devicetree/bindings/usb/usb-nop-xceiv.txt      |  7 +-
 drivers/usb/phy/phy-am335x.c                       |  2 +-
 drivers/usb/phy/phy-generic.c                      | 84 ++++++++++++++--------
 drivers/usb/phy/phy-generic.h                      |  6 +-
 4 files changed, 63 insertions(+), 36 deletions(-)

diff --git a/Documentation/devicetree/bindings/usb/usb-nop-xceiv.txt b/Documentation/devicetree/bindings/usb/usb-nop-xceiv.txt
index d7e272671c7e..1bd37faba05b 100644
--- a/Documentation/devicetree/bindings/usb/usb-nop-xceiv.txt
+++ b/Documentation/devicetree/bindings/usb/usb-nop-xceiv.txt
@@ -15,7 +15,7 @@ Optional properties:
 
 - vcc-supply: phandle to the regulator that provides RESET to the PHY.
 
-- reset-supply: phandle to the regulator that provides power to the PHY.
+- reset-gpios: Should specify the GPIO for reset.
 
 Example:
 
@@ -25,10 +25,9 @@ Example:
 		clocks = <&osc 0>;
 		clock-names = "main_clk";
 		vcc-supply = <&hsusb1_vcc_regulator>;
-		reset-supply = <&hsusb1_reset_regulator>;
+		reset-gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
 	};
 
 hsusb1_phy is a NOP USB PHY device that gets its clock from an oscillator
 and expects that clock to be configured to 19.2MHz by the NOP PHY driver.
-hsusb1_vcc_regulator provides power to the PHY and hsusb1_reset_regulator
-controls RESET.
+hsusb1_vcc_regulator provides power to the PHY and GPIO 7 controls RESET.
diff --git a/drivers/usb/phy/phy-am335x.c b/drivers/usb/phy/phy-am335x.c
index 1495cdc751ad..6370e50649d7 100644
--- a/drivers/usb/phy/phy-am335x.c
+++ b/drivers/usb/phy/phy-am335x.c
@@ -53,7 +53,7 @@ static int am335x_phy_probe(struct platform_device *pdev)
 	}
 
 	ret = usb_phy_gen_create_phy(dev, &am_phy->usb_phy_gen,
-			USB_PHY_TYPE_USB2, 0, false, false);
+			USB_PHY_TYPE_USB2, 0, false);
 	if (ret)
 		return ret;
 
diff --git a/drivers/usb/phy/phy-generic.c b/drivers/usb/phy/phy-generic.c
index fcc31045fda7..fce3a9e9bb5d 100644
--- a/drivers/usb/phy/phy-generic.c
+++ b/drivers/usb/phy/phy-generic.c
@@ -35,6 +35,9 @@
 #include <linux/clk.h>
 #include <linux/regulator/consumer.h>
 #include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
 
 #include "phy-generic.h"
 
@@ -64,6 +67,23 @@ static int nop_set_suspend(struct usb_phy *x, int suspend)
 	return 0;
 }
 
+static void nop_reset_set(struct usb_phy_gen_xceiv *nop, int asserted)
+{
+	int value;
+
+	if (!gpio_is_valid(nop->gpio_reset))
+		return;
+
+	value = asserted;
+	if (nop->reset_active_low)
+		value = !value;
+
+	gpio_set_value_cansleep(nop->gpio_reset, value);
+
+	if (!asserted)
+		usleep_range(10000, 20000);
+}
+
 int usb_gen_phy_init(struct usb_phy *phy)
 {
 	struct usb_phy_gen_xceiv *nop = dev_get_drvdata(phy->dev);
@@ -76,11 +96,8 @@ int usb_gen_phy_init(struct usb_phy *phy)
 	if (!IS_ERR(nop->clk))
 		clk_prepare_enable(nop->clk);
 
-	if (!IS_ERR(nop->reset)) {
-		/* De-assert RESET */
-		if (regulator_enable(nop->reset))
-			dev_err(phy->dev, "Failed to de-assert reset\n");
-	}
+	/* De-assert RESET */
+	nop_reset_set(nop, 0);
 
 	return 0;
 }
@@ -90,11 +107,8 @@ void usb_gen_phy_shutdown(struct usb_phy *phy)
 {
 	struct usb_phy_gen_xceiv *nop = dev_get_drvdata(phy->dev);
 
-	if (!IS_ERR(nop->reset)) {
-		/* Assert RESET */
-		if (regulator_disable(nop->reset))
-			dev_err(phy->dev, "Failed to assert reset\n");
-	}
+	/* Assert RESET */
+	nop_reset_set(nop, 1);
 
 	if (!IS_ERR(nop->clk))
 		clk_disable_unprepare(nop->clk);
@@ -136,8 +150,7 @@ static int nop_set_host(struct usb_otg *otg, struct usb_bus *host)
 }
 
 int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_gen_xceiv *nop,
-		enum usb_phy_type type, u32 clk_rate, bool needs_vcc,
-		bool needs_reset)
+		enum usb_phy_type type, u32 clk_rate, bool needs_vcc)
 {
 	int err;
 
@@ -168,12 +181,22 @@ int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_gen_xceiv *nop,
 			return -EPROBE_DEFER;
 	}
 
-	nop->reset = devm_regulator_get(dev, "reset");
-	if (IS_ERR(nop->reset)) {
-		dev_dbg(dev, "Error getting reset regulator: %ld\n",
-					PTR_ERR(nop->reset));
-		if (needs_reset)
-			return -EPROBE_DEFER;
+	if (gpio_is_valid(nop->gpio_reset)) {
+		unsigned long gpio_flags;
+
+		/* Assert RESET */
+		if (nop->reset_active_low)
+			gpio_flags = GPIOF_OUT_INIT_LOW;
+		else
+			gpio_flags = GPIOF_OUT_INIT_HIGH;
+
+		err = devm_gpio_request_one(dev, nop->gpio_reset,
+						gpio_flags, dev_name(dev));
+		if (err) {
+			dev_err(dev, "Error requesting RESET GPIO %d\n",
+					nop->gpio_reset);
+			return err;
+		}
 	}
 
 	nop->dev		= dev;
@@ -202,31 +225,36 @@ static int usb_phy_gen_xceiv_probe(struct platform_device *pdev)
 	int err;
 	u32 clk_rate = 0;
 	bool needs_vcc = false;
-	bool needs_reset = false;
+
+	nop = devm_kzalloc(dev, sizeof(*nop), GFP_KERNEL);
+	if (!nop)
+		return -ENOMEM;
+
+	nop->reset_active_low = true;	/* default behaviour */
 
 	if (dev->of_node) {
 		struct device_node *node = dev->of_node;
+		enum of_gpio_flags flags;
 
 		if (of_property_read_u32(node, "clock-frequency", &clk_rate))
 			clk_rate = 0;
 
 		needs_vcc = of_property_read_bool(node, "vcc-supply");
-		needs_reset = of_property_read_bool(node, "reset-supply");
+		nop->gpio_reset = of_get_named_gpio_flags(node, "reset-gpios",
+								0, &flags);
+		if (nop->gpio_reset == -EPROBE_DEFER)
+			return -EPROBE_DEFER;
+
+		nop->reset_active_low = flags & OF_GPIO_ACTIVE_LOW;
 
 	} else if (pdata) {
 		type = pdata->type;
 		clk_rate = pdata->clk_rate;
 		needs_vcc = pdata->needs_vcc;
-		needs_reset = pdata->needs_reset;
+		nop->gpio_reset = pdata->gpio_reset;
 	}
 
-	nop = devm_kzalloc(dev, sizeof(*nop), GFP_KERNEL);
-	if (!nop)
-		return -ENOMEM;
-
-
-	err = usb_phy_gen_create_phy(dev, nop, type, clk_rate, needs_vcc,
-			needs_reset);
+	err = usb_phy_gen_create_phy(dev, nop, type, clk_rate, needs_vcc);
 	if (err)
 		return err;
 
diff --git a/drivers/usb/phy/phy-generic.h b/drivers/usb/phy/phy-generic.h
index 386d11b375aa..d2a220d81734 100644
--- a/drivers/usb/phy/phy-generic.h
+++ b/drivers/usb/phy/phy-generic.h
@@ -6,14 +6,14 @@ struct usb_phy_gen_xceiv {
 	struct device *dev;
 	struct clk *clk;
 	struct regulator *vcc;
-	struct regulator *reset;
+	int gpio_reset;
+	bool reset_active_low;
 };
 
 int usb_gen_phy_init(struct usb_phy *phy);
 void usb_gen_phy_shutdown(struct usb_phy *phy);
 
 int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_gen_xceiv *nop,
-		enum usb_phy_type type, u32 clk_rate, bool needs_vcc,
-		bool needs_reset);
+		enum usb_phy_type type, u32 clk_rate, bool needs_vcc);
 
 #endif
-- 
cgit 


From 67c8d0636445da59b27697f380a7e2089c5707eb Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Tue, 24 Sep 2013 11:53:49 +0300
Subject: ARM: OMAP2+: omap-usb-host: Get rid of platform_data from struct
 usbhs_phy_data

The platform data bits can be inferred from the other members of
struct usbhs_phy_data. So get rid of the platform_data member.

Build the platform data for the PHY device in usbhs_init_phys() instead.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 arch/arm/mach-omap2/board-omap3beagle.c |  6 ------
 arch/arm/mach-omap2/usb-host.c          | 11 ++++++++++-
 arch/arm/mach-omap2/usb.h               |  1 -
 3 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index f26918467efc..8b9cd0690ce7 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -289,18 +289,12 @@ static struct regulator_consumer_supply beagle_vsim_supply[] = {
 
 static struct gpio_led gpio_leds[];
 
-/* PHY's VCC regulator might be added later, so flag that we need it */
-static struct usb_phy_gen_xceiv_platform_data hsusb2_phy_data = {
-	.needs_vcc = true,
-};
-
 static struct usbhs_phy_data phy_data[] = {
 	{
 		.port = 2,
 		.reset_gpio = 147,
 		.vcc_gpio = -1,		/* updated in beagle_twl_gpio_setup */
 		.vcc_polarity = 1,	/* updated in beagle_twl_gpio_setup */
-		.platform_data = &hsusb2_phy_data,
 	},
 };
 
diff --git a/arch/arm/mach-omap2/usb-host.c b/arch/arm/mach-omap2/usb-host.c
index e83a6a4b184a..78ac1c211ece 100644
--- a/arch/arm/mach-omap2/usb-host.c
+++ b/arch/arm/mach-omap2/usb-host.c
@@ -435,6 +435,7 @@ int usbhs_init_phys(struct usbhs_phy_data *phy, int num_phys)
 	struct platform_device *pdev;
 	char *phy_id;
 	struct platform_device_info pdevinfo;
+	struct usb_phy_gen_xceiv_platform_data nop_pdata;
 
 	for (i = 0; i < num_phys; i++) {
 
@@ -455,11 +456,19 @@ int usbhs_init_phys(struct usbhs_phy_data *phy, int num_phys)
 			return -ENOMEM;
 		}
 
+		/* set platform data */
+		memset(&nop_pdata, 0, sizeof(nop_pdata));
+		if (gpio_is_valid(phy->vcc_gpio))
+			nop_pdata.needs_vcc = true;
+		if (gpio_is_valid(phy->reset_gpio))
+			nop_pdata.needs_reset = true;
+		nop_pdata.type = USB_PHY_TYPE_USB2;
+
 		/* create a NOP PHY device */
 		memset(&pdevinfo, 0, sizeof(pdevinfo));
 		pdevinfo.name = nop_name;
 		pdevinfo.id = phy->port;
-		pdevinfo.data = phy->platform_data;
+		pdevinfo.data = &nop_pdata;
 		pdevinfo.size_data =
 			sizeof(struct usb_phy_gen_xceiv_platform_data);
 		scnprintf(phy_id, MAX_STR, "usb_phy_gen_xceiv.%d",
diff --git a/arch/arm/mach-omap2/usb.h b/arch/arm/mach-omap2/usb.h
index e7261ebcf7b0..4ba2ae759895 100644
--- a/arch/arm/mach-omap2/usb.h
+++ b/arch/arm/mach-omap2/usb.h
@@ -58,7 +58,6 @@ struct usbhs_phy_data {
 	int reset_gpio;
 	int vcc_gpio;
 	bool vcc_polarity;	/* 1 active high, 0 active low */
-	void *platform_data;
 };
 
 extern void usb_musb_init(struct omap_musb_board_data *board_data);
-- 
cgit 


From 33d7be354025d7273556783e8a8d9408af1d802b Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Tue, 24 Sep 2013 11:53:50 +0300
Subject: ARM: OMAP2+: usb-host: Adapt to USB phy-nop RESET line changes

The USB phy-nop nop driver expects the RESET line information
to be sent as a GPIO number via platform data. Adapt to that.

Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 arch/arm/mach-omap2/usb-host.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/arch/arm/mach-omap2/usb-host.c b/arch/arm/mach-omap2/usb-host.c
index 78ac1c211ece..10855eb4ccc1 100644
--- a/arch/arm/mach-omap2/usb-host.c
+++ b/arch/arm/mach-omap2/usb-host.c
@@ -460,8 +460,7 @@ int usbhs_init_phys(struct usbhs_phy_data *phy, int num_phys)
 		memset(&nop_pdata, 0, sizeof(nop_pdata));
 		if (gpio_is_valid(phy->vcc_gpio))
 			nop_pdata.needs_vcc = true;
-		if (gpio_is_valid(phy->reset_gpio))
-			nop_pdata.needs_reset = true;
+		nop_pdata.gpio_reset = phy->reset_gpio;
 		nop_pdata.type = USB_PHY_TYPE_USB2;
 
 		/* create a NOP PHY device */
@@ -483,14 +482,6 @@ int usbhs_init_phys(struct usbhs_phy_data *phy, int num_phys)
 
 		usb_bind_phy("ehci-omap.0", phy->port - 1, phy_id);
 
-		/* Do we need RESET regulator ? */
-		if (gpio_is_valid(phy->reset_gpio)) {
-			scnprintf(rail_name, MAX_STR,
-					"hsusb%d_reset", phy->port);
-			usbhs_add_regulator(rail_name, phy_id, "reset",
-						phy->reset_gpio, 1);
-		}
-
 		/* Do we need VCC regulator ? */
 		if (gpio_is_valid(phy->vcc_gpio)) {
 			scnprintf(rail_name, MAX_STR, "hsusb%d_vcc", phy->port);
-- 
cgit 


From f8cffc84a2ff8efc2ecca6128485877109e499f5 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Sat, 28 Sep 2013 00:05:34 -0300
Subject: usb: gadget: udc-core: Do not report -EISNAM error from gadgetfs

When mounting a gadgetfs the following error message is seen:

$ modprobe gadgetfs
gadgetfs: USB Gadget filesystem, version 24 Aug 2004
$ mkdir  /dev/gadget
$ mount -t gadgetfs none /dev/gadget
nop ci_hdrc.0: failed to start (null): -120

The error comes from gadgetfs_probe(), which returns -EISNAM (-120).

As Alan Stern explains[1], this is the normal behavior:

"It is a temporary measure, used only when the file system is set up
initially.  The real bind routine is gadgetfs_bind(), which gets called
when userspace configures the gadget.

In short, this is how it is intended to work.  It isn't a bug."

[1] http://marc.info/?l=linux-usb&m=138029668707075&w=2

So in order to prevent the error message, do not report EISNAM as an error.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/udc-core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c
index 59891b1c48fc..27768a7d986a 100644
--- a/drivers/usb/gadget/udc-core.c
+++ b/drivers/usb/gadget/udc-core.c
@@ -356,7 +356,8 @@ static int udc_bind_to_driver(struct usb_udc *udc, struct usb_gadget_driver *dri
 	kobject_uevent(&udc->dev.kobj, KOBJ_CHANGE);
 	return 0;
 err1:
-	dev_err(&udc->dev, "failed to start %s: %d\n",
+	if (ret != -EISNAM)
+		dev_err(&udc->dev, "failed to start %s: %d\n",
 			udc->driver->function, ret);
 	udc->driver = NULL;
 	udc->dev.driver = NULL;
-- 
cgit 


From da8cc16724da2965c94ca15e1377cb9939776dda Mon Sep 17 00:00:00 2001
From: Anton Tikhomirov <av.tikhomirov@samsung.com>
Date: Thu, 3 Oct 2013 12:42:04 +0900
Subject: usb: phy: Pass OTG FSM pointer to callback functions

struct otg_fsm may be embedded to device's context structure.
The callbacks may require pointer to struct otg_fsm to obtain
necessary data for its operation (example: regulator reference
for drv_vbus()).

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/phy/phy-fsl-usb.c | 30 +++++++++++++++---------------
 drivers/usb/phy/phy-fsl-usb.h |  4 ++--
 drivers/usb/phy/phy-fsm-usb.h | 28 ++++++++++++++--------------
 3 files changed, 31 insertions(+), 31 deletions(-)

diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c
index fa7c9f9628b5..8b34694ac48f 100644
--- a/drivers/usb/phy/phy-fsl-usb.c
+++ b/drivers/usb/phy/phy-fsl-usb.c
@@ -134,7 +134,7 @@ int write_ulpi(u8 addr, u8 data)
 /* Operations that will be called from OTG Finite State Machine */
 
 /* Charge vbus for vbus pulsing in SRP */
-void fsl_otg_chrg_vbus(int on)
+void fsl_otg_chrg_vbus(struct otg_fsm *fsm, int on)
 {
 	u32 tmp;
 
@@ -170,7 +170,7 @@ void fsl_otg_dischrg_vbus(int on)
 }
 
 /* A-device driver vbus, controlled through PP bit in PORTSC */
-void fsl_otg_drv_vbus(int on)
+void fsl_otg_drv_vbus(struct otg_fsm *fsm, int on)
 {
 	u32 tmp;
 
@@ -188,7 +188,7 @@ void fsl_otg_drv_vbus(int on)
  * Pull-up D+, signalling connect by periperal. Also used in
  * data-line pulsing in SRP
  */
-void fsl_otg_loc_conn(int on)
+void fsl_otg_loc_conn(struct otg_fsm *fsm, int on)
 {
 	u32 tmp;
 
@@ -207,7 +207,7 @@ void fsl_otg_loc_conn(int on)
  * port.  In host mode, controller will automatically send SOF.
  * Suspend will block the data on the port.
  */
-void fsl_otg_loc_sof(int on)
+void fsl_otg_loc_sof(struct otg_fsm *fsm, int on)
 {
 	u32 tmp;
 
@@ -222,7 +222,7 @@ void fsl_otg_loc_sof(int on)
 }
 
 /* Start SRP pulsing by data-line pulsing, followed with v-bus pulsing. */
-void fsl_otg_start_pulse(void)
+void fsl_otg_start_pulse(struct otg_fsm *fsm)
 {
 	u32 tmp;
 
@@ -235,7 +235,7 @@ void fsl_otg_start_pulse(void)
 	fsl_otg_loc_conn(1);
 #endif
 
-	fsl_otg_add_timer(b_data_pulse_tmr);
+	fsl_otg_add_timer(fsm, b_data_pulse_tmr);
 }
 
 void b_data_pulse_end(unsigned long foo)
@@ -252,14 +252,14 @@ void b_data_pulse_end(unsigned long foo)
 void fsl_otg_pulse_vbus(void)
 {
 	srp_wait_done = 0;
-	fsl_otg_chrg_vbus(1);
+	fsl_otg_chrg_vbus(&fsl_otg_dev->fsm, 1);
 	/* start the timer to end vbus charge */
-	fsl_otg_add_timer(b_vbus_pulse_tmr);
+	fsl_otg_add_timer(&fsl_otg_dev->fsm, b_vbus_pulse_tmr);
 }
 
 void b_vbus_pulse_end(unsigned long foo)
 {
-	fsl_otg_chrg_vbus(0);
+	fsl_otg_chrg_vbus(&fsl_otg_dev->fsm, 0);
 
 	/*
 	 * As USB3300 using the same a_sess_vld and b_sess_vld voltage
@@ -267,7 +267,7 @@ void b_vbus_pulse_end(unsigned long foo)
 	 * residual voltage of vbus pulsing and A device pull up
 	 */
 	fsl_otg_dischrg_vbus(1);
-	fsl_otg_add_timer(b_srp_wait_tmr);
+	fsl_otg_add_timer(&fsl_otg_dev->fsm, b_srp_wait_tmr);
 }
 
 void b_srp_end(unsigned long foo)
@@ -289,7 +289,7 @@ void a_wait_enum(unsigned long foo)
 {
 	VDBG("a_wait_enum timeout\n");
 	if (!fsl_otg_dev->phy.otg->host->b_hnp_enable)
-		fsl_otg_add_timer(a_wait_enum_tmr);
+		fsl_otg_add_timer(&fsl_otg_dev->fsm, a_wait_enum_tmr);
 	else
 		otg_statemachine(&fsl_otg_dev->fsm);
 }
@@ -376,7 +376,7 @@ void fsl_otg_uninit_timers(void)
 }
 
 /* Add timer to timer list */
-void fsl_otg_add_timer(void *gtimer)
+void fsl_otg_add_timer(struct otg_fsm *fsm, void *gtimer)
 {
 	struct fsl_otg_timer *timer = gtimer;
 	struct fsl_otg_timer *tmp_timer;
@@ -395,7 +395,7 @@ void fsl_otg_add_timer(void *gtimer)
 }
 
 /* Remove timer from the timer list; clear timeout status */
-void fsl_otg_del_timer(void *gtimer)
+void fsl_otg_del_timer(struct otg_fsm *fsm, void *gtimer)
 {
 	struct fsl_otg_timer *timer = gtimer;
 	struct fsl_otg_timer *tmp_timer, *del_tmp;
@@ -468,7 +468,7 @@ int fsl_otg_start_host(struct otg_fsm *fsm, int on)
 				retval = dev->driver->pm->resume(dev);
 				if (fsm->id) {
 					/* default-b */
-					fsl_otg_drv_vbus(1);
+					fsl_otg_drv_vbus(fsm, 1);
 					/*
 					 * Workaround: b_host can't driver
 					 * vbus, but PP in PORTSC needs to
@@ -493,7 +493,7 @@ int fsl_otg_start_host(struct otg_fsm *fsm, int on)
 					retval = dev->driver->pm->suspend(dev);
 				if (fsm->id)
 					/* default-b */
-					fsl_otg_drv_vbus(0);
+					fsl_otg_drv_vbus(fsm, 0);
 			}
 			otg_dev->host_working = 0;
 		}
diff --git a/drivers/usb/phy/phy-fsl-usb.h b/drivers/usb/phy/phy-fsl-usb.h
index e1859b8ef567..7365170a2f23 100644
--- a/drivers/usb/phy/phy-fsl-usb.h
+++ b/drivers/usb/phy/phy-fsl-usb.h
@@ -401,6 +401,6 @@ struct fsl_otg_config {
 #define GET_A_BUS_REQ		_IOR(OTG_IOCTL_MAGIC, 8, int)
 #define GET_B_BUS_REQ		_IOR(OTG_IOCTL_MAGIC, 9, int)
 
-void fsl_otg_add_timer(void *timer);
-void fsl_otg_del_timer(void *timer);
+void fsl_otg_add_timer(struct otg_fsm *fsm, void *timer);
+void fsl_otg_del_timer(struct otg_fsm *fsm, void *timer);
 void fsl_otg_pulse_vbus(void);
diff --git a/drivers/usb/phy/phy-fsm-usb.h b/drivers/usb/phy/phy-fsm-usb.h
index fbe586206f33..75344bec4679 100644
--- a/drivers/usb/phy/phy-fsm-usb.h
+++ b/drivers/usb/phy/phy-fsm-usb.h
@@ -83,13 +83,13 @@ struct otg_fsm {
 };
 
 struct otg_fsm_ops {
-	void	(*chrg_vbus)(int on);
-	void	(*drv_vbus)(int on);
-	void	(*loc_conn)(int on);
-	void	(*loc_sof)(int on);
-	void	(*start_pulse)(void);
-	void	(*add_timer)(void *timer);
-	void	(*del_timer)(void *timer);
+	void	(*chrg_vbus)(struct otg_fsm *fsm, int on);
+	void	(*drv_vbus)(struct otg_fsm *fsm, int on);
+	void	(*loc_conn)(struct otg_fsm *fsm, int on);
+	void	(*loc_sof)(struct otg_fsm *fsm, int on);
+	void	(*start_pulse)(struct otg_fsm *fsm);
+	void	(*add_timer)(struct otg_fsm *fsm, void *timer);
+	void	(*del_timer)(struct otg_fsm *fsm, void *timer);
 	int	(*start_host)(struct otg_fsm *fsm, int on);
 	int	(*start_gadget)(struct otg_fsm *fsm, int on);
 };
@@ -97,14 +97,14 @@ struct otg_fsm_ops {
 
 static inline void otg_chrg_vbus(struct otg_fsm *fsm, int on)
 {
-	fsm->ops->chrg_vbus(on);
+	fsm->ops->chrg_vbus(fsm, on);
 }
 
 static inline void otg_drv_vbus(struct otg_fsm *fsm, int on)
 {
 	if (fsm->drv_vbus != on) {
 		fsm->drv_vbus = on;
-		fsm->ops->drv_vbus(on);
+		fsm->ops->drv_vbus(fsm, on);
 	}
 }
 
@@ -112,7 +112,7 @@ static inline void otg_loc_conn(struct otg_fsm *fsm, int on)
 {
 	if (fsm->loc_conn != on) {
 		fsm->loc_conn = on;
-		fsm->ops->loc_conn(on);
+		fsm->ops->loc_conn(fsm, on);
 	}
 }
 
@@ -120,23 +120,23 @@ static inline void otg_loc_sof(struct otg_fsm *fsm, int on)
 {
 	if (fsm->loc_sof != on) {
 		fsm->loc_sof = on;
-		fsm->ops->loc_sof(on);
+		fsm->ops->loc_sof(fsm, on);
 	}
 }
 
 static inline void otg_start_pulse(struct otg_fsm *fsm)
 {
-	fsm->ops->start_pulse();
+	fsm->ops->start_pulse(fsm);
 }
 
 static inline void otg_add_timer(struct otg_fsm *fsm, void *timer)
 {
-	fsm->ops->add_timer(timer);
+	fsm->ops->add_timer(fsm, timer);
 }
 
 static inline void otg_del_timer(struct otg_fsm *fsm, void *timer)
 {
-	fsm->ops->del_timer(timer);
+	fsm->ops->del_timer(fsm, timer);
 }
 
 int otg_statemachine(struct otg_fsm *fsm);
-- 
cgit 


From 737cc66eac350d674c72a3f903541644098ec47e Mon Sep 17 00:00:00 2001
From: Anton Tikhomirov <av.tikhomirov@samsung.com>
Date: Thu, 3 Oct 2013 12:42:04 +0900
Subject: usb: phy: Check OTG FSM callback existance in helper functions

Existence of callback must be checked to avoid NULL pointer
dereferncing.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/phy/phy-fsm-usb.h | 35 ++++++++++++++++++++++++++++-------
 1 file changed, 28 insertions(+), 7 deletions(-)

diff --git a/drivers/usb/phy/phy-fsm-usb.h b/drivers/usb/phy/phy-fsm-usb.h
index 75344bec4679..0f3f7d87f887 100644
--- a/drivers/usb/phy/phy-fsm-usb.h
+++ b/drivers/usb/phy/phy-fsm-usb.h
@@ -95,48 +95,69 @@ struct otg_fsm_ops {
 };
 
 
-static inline void otg_chrg_vbus(struct otg_fsm *fsm, int on)
+static inline int otg_chrg_vbus(struct otg_fsm *fsm, int on)
 {
+	if (!fsm->ops->chrg_vbus)
+		return -EOPNOTSUPP;
 	fsm->ops->chrg_vbus(fsm, on);
+	return 0;
 }
 
-static inline void otg_drv_vbus(struct otg_fsm *fsm, int on)
+static inline int otg_drv_vbus(struct otg_fsm *fsm, int on)
 {
+	if (!fsm->ops->drv_vbus)
+		return -EOPNOTSUPP;
 	if (fsm->drv_vbus != on) {
 		fsm->drv_vbus = on;
 		fsm->ops->drv_vbus(fsm, on);
 	}
+	return 0;
 }
 
-static inline void otg_loc_conn(struct otg_fsm *fsm, int on)
+static inline int otg_loc_conn(struct otg_fsm *fsm, int on)
 {
+	if (!fsm->ops->loc_conn)
+		return -EOPNOTSUPP;
 	if (fsm->loc_conn != on) {
 		fsm->loc_conn = on;
 		fsm->ops->loc_conn(fsm, on);
 	}
+	return 0;
 }
 
-static inline void otg_loc_sof(struct otg_fsm *fsm, int on)
+static inline int otg_loc_sof(struct otg_fsm *fsm, int on)
 {
+	if (!fsm->ops->loc_sof)
+		return -EOPNOTSUPP;
 	if (fsm->loc_sof != on) {
 		fsm->loc_sof = on;
 		fsm->ops->loc_sof(fsm, on);
 	}
+	return 0;
 }
 
-static inline void otg_start_pulse(struct otg_fsm *fsm)
+static inline int otg_start_pulse(struct otg_fsm *fsm)
 {
+	if (!fsm->ops->start_pulse)
+		return -EOPNOTSUPP;
 	fsm->ops->start_pulse(fsm);
+	return 0;
 }
 
-static inline void otg_add_timer(struct otg_fsm *fsm, void *timer)
+static inline int otg_add_timer(struct otg_fsm *fsm, void *timer)
 {
+	if (!fsm->ops->add_timer)
+		return -EOPNOTSUPP;
 	fsm->ops->add_timer(fsm, timer);
+	return 0;
 }
 
-static inline void otg_del_timer(struct otg_fsm *fsm, void *timer)
+static inline int otg_del_timer(struct otg_fsm *fsm, void *timer)
 {
+	if (!fsm->ops->del_timer)
+		return -EOPNOTSUPP;
 	fsm->ops->del_timer(fsm, timer);
+	return 0;
 }
 
 int otg_statemachine(struct otg_fsm *fsm);
-- 
cgit 


From 425d710172cee47ed5e18eefd3308d88643de76d Mon Sep 17 00:00:00 2001
From: Anton Tikhomirov <av.tikhomirov@samsung.com>
Date: Thu, 3 Oct 2013 12:42:04 +0900
Subject: usb: phy: Add and use missed helper functions

This patch implements missed helper functions for start_gadget() and
start_host() OTG FSM callbacks.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/phy/phy-fsm-usb.c |  8 ++++----
 drivers/usb/phy/phy-fsm-usb.h | 14 ++++++++++++++
 2 files changed, 18 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/phy/phy-fsm-usb.c b/drivers/usb/phy/phy-fsm-usb.c
index 7f4596606e18..78984591ee74 100644
--- a/drivers/usb/phy/phy-fsm-usb.c
+++ b/drivers/usb/phy/phy-fsm-usb.c
@@ -41,17 +41,17 @@ static int otg_set_protocol(struct otg_fsm *fsm, int protocol)
 			fsm->protocol, protocol);
 		/* stop old protocol */
 		if (fsm->protocol == PROTO_HOST)
-			ret = fsm->ops->start_host(fsm, 0);
+			ret = otg_start_host(fsm, 0);
 		else if (fsm->protocol == PROTO_GADGET)
-			ret = fsm->ops->start_gadget(fsm, 0);
+			ret = otg_start_gadget(fsm, 0);
 		if (ret)
 			return ret;
 
 		/* start new protocol */
 		if (protocol == PROTO_HOST)
-			ret = fsm->ops->start_host(fsm, 1);
+			ret = otg_start_host(fsm, 1);
 		else if (protocol == PROTO_GADGET)
-			ret = fsm->ops->start_gadget(fsm, 1);
+			ret = otg_start_gadget(fsm, 1);
 		if (ret)
 			return ret;
 
diff --git a/drivers/usb/phy/phy-fsm-usb.h b/drivers/usb/phy/phy-fsm-usb.h
index 0f3f7d87f887..157f10672767 100644
--- a/drivers/usb/phy/phy-fsm-usb.h
+++ b/drivers/usb/phy/phy-fsm-usb.h
@@ -160,6 +160,20 @@ static inline int otg_del_timer(struct otg_fsm *fsm, void *timer)
 	return 0;
 }
 
+static inline int otg_start_host(struct otg_fsm *fsm, int on)
+{
+	if (!fsm->ops->start_host)
+		return -EOPNOTSUPP;
+	return fsm->ops->start_host(fsm, on);
+}
+
+static inline int otg_start_gadget(struct otg_fsm *fsm, int on)
+{
+	if (!fsm->ops->start_gadget)
+		return -EOPNOTSUPP;
+	return fsm->ops->start_gadget(fsm, on);
+}
+
 int otg_statemachine(struct otg_fsm *fsm);
 
 /* Defined by device specific driver, for different timer implementation */
-- 
cgit 


From f6de27eed372f41646b7bd95d6903923f5308517 Mon Sep 17 00:00:00 2001
From: Anton Tikhomirov <av.tikhomirov@samsung.com>
Date: Thu, 3 Oct 2013 12:42:04 +0900
Subject: usb: phy: Fix OTG FSM timer handling

Get rid of using OTG driver specific timers by passing timer
type to corresponding callbacks.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/phy/phy-fsl-usb.c | 60 +++++++++++++++++++++++++++++++++++++++++--
 drivers/usb/phy/phy-fsm-usb.c | 28 ++++++++++----------
 drivers/usb/phy/phy-fsm-usb.h | 24 ++++++++++-------
 3 files changed, 87 insertions(+), 25 deletions(-)

diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c
index 8b34694ac48f..649586169be5 100644
--- a/drivers/usb/phy/phy-fsl-usb.c
+++ b/drivers/usb/phy/phy-fsl-usb.c
@@ -375,6 +375,40 @@ void fsl_otg_uninit_timers(void)
 	kfree(b_vbus_pulse_tmr);
 }
 
+static struct fsl_otg_timer *fsl_otg_get_timer(enum otg_fsm_timer t)
+{
+	struct fsl_otg_timer *timer;
+
+	/* REVISIT: use array of pointers to timers instead */
+	switch (t) {
+	case A_WAIT_VRISE:
+		timer = a_wait_vrise_tmr;
+		break;
+	case A_WAIT_BCON:
+		timer = a_wait_vrise_tmr;
+		break;
+	case A_AIDL_BDIS:
+		timer = a_wait_vrise_tmr;
+		break;
+	case B_ASE0_BRST:
+		timer = a_wait_vrise_tmr;
+		break;
+	case B_SE0_SRP:
+		timer = a_wait_vrise_tmr;
+		break;
+	case B_SRP_FAIL:
+		timer = a_wait_vrise_tmr;
+		break;
+	case A_WAIT_ENUM:
+		timer = a_wait_vrise_tmr;
+		break;
+	default:
+		timer = NULL;
+	}
+
+	return timer;
+}
+
 /* Add timer to timer list */
 void fsl_otg_add_timer(struct otg_fsm *fsm, void *gtimer)
 {
@@ -394,6 +428,17 @@ void fsl_otg_add_timer(struct otg_fsm *fsm, void *gtimer)
 	list_add_tail(&timer->list, &active_timers);
 }
 
+static void fsl_otg_fsm_add_timer(struct otg_fsm *fsm, enum otg_fsm_timer t)
+{
+	struct fsl_otg_timer *timer;
+
+	timer = fsl_otg_get_timer(t);
+	if (!timer)
+		return;
+
+	fsl_otg_add_timer(fsm, timer);
+}
+
 /* Remove timer from the timer list; clear timeout status */
 void fsl_otg_del_timer(struct otg_fsm *fsm, void *gtimer)
 {
@@ -405,6 +450,17 @@ void fsl_otg_del_timer(struct otg_fsm *fsm, void *gtimer)
 			list_del(&timer->list);
 }
 
+static void fsl_otg_fsm_del_timer(struct otg_fsm *fsm, enum otg_fsm_timer t)
+{
+	struct fsl_otg_timer *timer;
+
+	timer = fsl_otg_get_timer(t);
+	if (!timer)
+		return;
+
+	fsl_otg_del_timer(fsm, timer);
+}
+
 /*
  * Reduce timer count by 1, and find timeout conditions.
  * Called by fsl_otg 1ms timer interrupt
@@ -757,8 +813,8 @@ static struct otg_fsm_ops fsl_otg_ops = {
 	.loc_sof = fsl_otg_loc_sof,
 	.start_pulse = fsl_otg_start_pulse,
 
-	.add_timer = fsl_otg_add_timer,
-	.del_timer = fsl_otg_del_timer,
+	.add_timer = fsl_otg_fsm_add_timer,
+	.del_timer = fsl_otg_fsm_del_timer,
 
 	.start_host = fsl_otg_start_host,
 	.start_gadget = fsl_otg_start_gadget,
diff --git a/drivers/usb/phy/phy-fsm-usb.c b/drivers/usb/phy/phy-fsm-usb.c
index 78984591ee74..f8fe7ec620e6 100644
--- a/drivers/usb/phy/phy-fsm-usb.c
+++ b/drivers/usb/phy/phy-fsm-usb.c
@@ -69,7 +69,7 @@ void otg_leave_state(struct otg_fsm *fsm, enum usb_otg_state old_state)
 {
 	switch (old_state) {
 	case OTG_STATE_B_IDLE:
-		otg_del_timer(fsm, b_se0_srp_tmr);
+		otg_del_timer(fsm, B_SE0_SRP);
 		fsm->b_se0_srp = 0;
 		break;
 	case OTG_STATE_B_SRP_INIT:
@@ -78,7 +78,7 @@ void otg_leave_state(struct otg_fsm *fsm, enum usb_otg_state old_state)
 	case OTG_STATE_B_PERIPHERAL:
 		break;
 	case OTG_STATE_B_WAIT_ACON:
-		otg_del_timer(fsm, b_ase0_brst_tmr);
+		otg_del_timer(fsm, B_ASE0_BRST);
 		fsm->b_ase0_brst_tmout = 0;
 		break;
 	case OTG_STATE_B_HOST:
@@ -86,25 +86,25 @@ void otg_leave_state(struct otg_fsm *fsm, enum usb_otg_state old_state)
 	case OTG_STATE_A_IDLE:
 		break;
 	case OTG_STATE_A_WAIT_VRISE:
-		otg_del_timer(fsm, a_wait_vrise_tmr);
+		otg_del_timer(fsm, A_WAIT_VRISE);
 		fsm->a_wait_vrise_tmout = 0;
 		break;
 	case OTG_STATE_A_WAIT_BCON:
-		otg_del_timer(fsm, a_wait_bcon_tmr);
+		otg_del_timer(fsm, A_WAIT_BCON);
 		fsm->a_wait_bcon_tmout = 0;
 		break;
 	case OTG_STATE_A_HOST:
-		otg_del_timer(fsm, a_wait_enum_tmr);
+		otg_del_timer(fsm, A_WAIT_ENUM);
 		break;
 	case OTG_STATE_A_SUSPEND:
-		otg_del_timer(fsm, a_aidl_bdis_tmr);
+		otg_del_timer(fsm, A_AIDL_BDIS);
 		fsm->a_aidl_bdis_tmout = 0;
 		fsm->a_suspend_req = 0;
 		break;
 	case OTG_STATE_A_PERIPHERAL:
 		break;
 	case OTG_STATE_A_WAIT_VFALL:
-		otg_del_timer(fsm, a_wait_vrise_tmr);
+		otg_del_timer(fsm, A_WAIT_VRISE);
 		break;
 	case OTG_STATE_A_VBUS_ERR:
 		break;
@@ -128,13 +128,13 @@ int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state)
 		otg_loc_conn(fsm, 0);
 		otg_loc_sof(fsm, 0);
 		otg_set_protocol(fsm, PROTO_UNDEF);
-		otg_add_timer(fsm, b_se0_srp_tmr);
+		otg_add_timer(fsm, B_SE0_SRP);
 		break;
 	case OTG_STATE_B_SRP_INIT:
 		otg_start_pulse(fsm);
 		otg_loc_sof(fsm, 0);
 		otg_set_protocol(fsm, PROTO_UNDEF);
-		otg_add_timer(fsm, b_srp_fail_tmr);
+		otg_add_timer(fsm, B_SRP_FAIL);
 		break;
 	case OTG_STATE_B_PERIPHERAL:
 		otg_chrg_vbus(fsm, 0);
@@ -147,7 +147,7 @@ int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state)
 		otg_loc_conn(fsm, 0);
 		otg_loc_sof(fsm, 0);
 		otg_set_protocol(fsm, PROTO_HOST);
-		otg_add_timer(fsm, b_ase0_brst_tmr);
+		otg_add_timer(fsm, B_ASE0_BRST);
 		fsm->a_bus_suspend = 0;
 		break;
 	case OTG_STATE_B_HOST:
@@ -170,14 +170,14 @@ int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state)
 		otg_loc_conn(fsm, 0);
 		otg_loc_sof(fsm, 0);
 		otg_set_protocol(fsm, PROTO_HOST);
-		otg_add_timer(fsm, a_wait_vrise_tmr);
+		otg_add_timer(fsm, A_WAIT_VRISE);
 		break;
 	case OTG_STATE_A_WAIT_BCON:
 		otg_drv_vbus(fsm, 1);
 		otg_loc_conn(fsm, 0);
 		otg_loc_sof(fsm, 0);
 		otg_set_protocol(fsm, PROTO_HOST);
-		otg_add_timer(fsm, a_wait_bcon_tmr);
+		otg_add_timer(fsm, A_WAIT_BCON);
 		break;
 	case OTG_STATE_A_HOST:
 		otg_drv_vbus(fsm, 1);
@@ -189,14 +189,14 @@ int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state)
 		 * suspend too fast to complete a_set_b_hnp_en
 		 */
 		if (!fsm->a_bus_req || fsm->a_suspend_req)
-			otg_add_timer(fsm, a_wait_enum_tmr);
+			otg_add_timer(fsm, A_WAIT_ENUM);
 		break;
 	case OTG_STATE_A_SUSPEND:
 		otg_drv_vbus(fsm, 1);
 		otg_loc_conn(fsm, 0);
 		otg_loc_sof(fsm, 0);
 		otg_set_protocol(fsm, PROTO_HOST);
-		otg_add_timer(fsm, a_aidl_bdis_tmr);
+		otg_add_timer(fsm, A_AIDL_BDIS);
 
 		break;
 	case OTG_STATE_A_PERIPHERAL:
diff --git a/drivers/usb/phy/phy-fsm-usb.h b/drivers/usb/phy/phy-fsm-usb.h
index 157f10672767..b47b32c6ed1f 100644
--- a/drivers/usb/phy/phy-fsm-usb.h
+++ b/drivers/usb/phy/phy-fsm-usb.h
@@ -34,6 +34,17 @@
 #define PROTO_HOST	(1)
 #define PROTO_GADGET	(2)
 
+enum otg_fsm_timer {
+	A_WAIT_VRISE,
+	A_WAIT_BCON,
+	A_AIDL_BDIS,
+	B_ASE0_BRST,
+	B_SE0_SRP,
+	B_SRP_FAIL,
+	A_WAIT_ENUM,
+	NUM_OTG_FSM_TIMERS,
+};
+
 /* OTG state machine according to the OTG spec */
 struct otg_fsm {
 	/* Input */
@@ -88,8 +99,8 @@ struct otg_fsm_ops {
 	void	(*loc_conn)(struct otg_fsm *fsm, int on);
 	void	(*loc_sof)(struct otg_fsm *fsm, int on);
 	void	(*start_pulse)(struct otg_fsm *fsm);
-	void	(*add_timer)(struct otg_fsm *fsm, void *timer);
-	void	(*del_timer)(struct otg_fsm *fsm, void *timer);
+	void	(*add_timer)(struct otg_fsm *fsm, enum otg_fsm_timer timer);
+	void	(*del_timer)(struct otg_fsm *fsm, enum otg_fsm_timer timer);
 	int	(*start_host)(struct otg_fsm *fsm, int on);
 	int	(*start_gadget)(struct otg_fsm *fsm, int on);
 };
@@ -144,7 +155,7 @@ static inline int otg_start_pulse(struct otg_fsm *fsm)
 	return 0;
 }
 
-static inline int otg_add_timer(struct otg_fsm *fsm, void *timer)
+static inline int otg_add_timer(struct otg_fsm *fsm, enum otg_fsm_timer timer)
 {
 	if (!fsm->ops->add_timer)
 		return -EOPNOTSUPP;
@@ -152,7 +163,7 @@ static inline int otg_add_timer(struct otg_fsm *fsm, void *timer)
 	return 0;
 }
 
-static inline int otg_del_timer(struct otg_fsm *fsm, void *timer)
+static inline int otg_del_timer(struct otg_fsm *fsm, enum otg_fsm_timer timer)
 {
 	if (!fsm->ops->del_timer)
 		return -EOPNOTSUPP;
@@ -175,8 +186,3 @@ static inline int otg_start_gadget(struct otg_fsm *fsm, int on)
 }
 
 int otg_statemachine(struct otg_fsm *fsm);
-
-/* Defined by device specific driver, for different timer implementation */
-extern struct fsl_otg_timer *a_wait_vrise_tmr, *a_wait_bcon_tmr,
-	*a_aidl_bdis_tmr, *b_ase0_brst_tmr, *b_se0_srp_tmr, *b_srp_fail_tmr,
-	*a_wait_enum_tmr;
-- 
cgit 


From 3294908bc0f178bfd67971fdb4432f3d4e50921e Mon Sep 17 00:00:00 2001
From: Anton Tikhomirov <av.tikhomirov@samsung.com>
Date: Thu, 3 Oct 2013 12:42:04 +0900
Subject: usb: phy: Add and use missed OTG FSM timers

a_bidl_adis_tmr and a_wait_vfall_tmr OTG timers missed in
current FSM implementation. This patch adds and makes use
of the timers as speicfied in OTG and EH supplement to USB2.0.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/phy/phy-fsm-usb.c | 12 +++++++++---
 drivers/usb/phy/phy-fsm-usb.h |  8 ++++++++
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/phy/phy-fsm-usb.c b/drivers/usb/phy/phy-fsm-usb.c
index f8fe7ec620e6..5e899edcaf39 100644
--- a/drivers/usb/phy/phy-fsm-usb.c
+++ b/drivers/usb/phy/phy-fsm-usb.c
@@ -102,8 +102,12 @@ void otg_leave_state(struct otg_fsm *fsm, enum usb_otg_state old_state)
 		fsm->a_suspend_req = 0;
 		break;
 	case OTG_STATE_A_PERIPHERAL:
+		otg_del_timer(fsm, A_BIDL_ADIS);
+		fsm->a_bidl_adis_tmout = 0;
 		break;
 	case OTG_STATE_A_WAIT_VFALL:
+		otg_del_timer(fsm, A_WAIT_VFALL);
+		fsm->a_wait_vfall_tmout = 0;
 		otg_del_timer(fsm, A_WAIT_VRISE);
 		break;
 	case OTG_STATE_A_VBUS_ERR:
@@ -204,12 +208,14 @@ int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state)
 		otg_loc_sof(fsm, 0);
 		otg_set_protocol(fsm, PROTO_GADGET);
 		otg_drv_vbus(fsm, 1);
+		otg_add_timer(fsm, A_BIDL_ADIS);
 		break;
 	case OTG_STATE_A_WAIT_VFALL:
 		otg_drv_vbus(fsm, 0);
 		otg_loc_conn(fsm, 0);
 		otg_loc_sof(fsm, 0);
 		otg_set_protocol(fsm, PROTO_HOST);
+		otg_add_timer(fsm, A_WAIT_VFALL);
 		break;
 	case OTG_STATE_A_VBUS_ERR:
 		otg_drv_vbus(fsm, 0);
@@ -324,14 +330,14 @@ int otg_statemachine(struct otg_fsm *fsm)
 	case OTG_STATE_A_PERIPHERAL:
 		if (fsm->id || fsm->a_bus_drop)
 			otg_set_state(fsm, OTG_STATE_A_WAIT_VFALL);
-		else if (fsm->b_bus_suspend)
+		else if (fsm->a_bidl_adis_tmout || fsm->b_bus_suspend)
 			otg_set_state(fsm, OTG_STATE_A_WAIT_BCON);
 		else if (!fsm->a_vbus_vld)
 			otg_set_state(fsm, OTG_STATE_A_VBUS_ERR);
 		break;
 	case OTG_STATE_A_WAIT_VFALL:
-		if (fsm->id || fsm->a_bus_req || (!fsm->a_sess_vld &&
-					!fsm->b_conn))
+		if (fsm->a_wait_vfall_tmout || fsm->id || fsm->a_bus_req ||
+				(!fsm->a_sess_vld && !fsm->b_conn))
 			otg_set_state(fsm, OTG_STATE_A_IDLE);
 		break;
 	case OTG_STATE_A_VBUS_ERR:
diff --git a/drivers/usb/phy/phy-fsm-usb.h b/drivers/usb/phy/phy-fsm-usb.h
index b47b32c6ed1f..a74e14aaa839 100644
--- a/drivers/usb/phy/phy-fsm-usb.h
+++ b/drivers/usb/phy/phy-fsm-usb.h
@@ -35,13 +35,19 @@
 #define PROTO_GADGET	(2)
 
 enum otg_fsm_timer {
+	/* Standard OTG timers */
 	A_WAIT_VRISE,
+	A_WAIT_VFALL,
 	A_WAIT_BCON,
 	A_AIDL_BDIS,
 	B_ASE0_BRST,
+	A_BIDL_ADIS,
+
+	/* Auxiliary timers */
 	B_SE0_SRP,
 	B_SRP_FAIL,
 	A_WAIT_ENUM,
+
 	NUM_OTG_FSM_TIMERS,
 };
 
@@ -69,9 +75,11 @@ struct otg_fsm {
 
 	/* Timeout indicator for timers */
 	int a_wait_vrise_tmout;
+	int a_wait_vfall_tmout;
 	int a_wait_bcon_tmout;
 	int a_aidl_bdis_tmout;
 	int b_ase0_brst_tmout;
+	int a_bidl_adis_tmout;
 
 	/* Informative variables */
 	int a_bus_drop;
-- 
cgit 


From cff4dab4cb95d394e9fd73f668326dac06e57b10 Mon Sep 17 00:00:00 2001
From: Anton Tikhomirov <av.tikhomirov@samsung.com>
Date: Thu, 3 Oct 2013 12:42:04 +0900
Subject: usb: phy: Rename OTG FSM informative variables

Mark informative variables with suffix '_inf' to distinguish
them from other non-informative variables with the same name.
If such non-informative varialbes were missed, they are created.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/phy/phy-fsl-usb.c |  2 +-
 drivers/usb/phy/phy-fsm-usb.c |  6 +++---
 drivers/usb/phy/phy-fsm-usb.h | 14 +++++++++-----
 3 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c
index 649586169be5..d13ccd58a423 100644
--- a/drivers/usb/phy/phy-fsl-usb.c
+++ b/drivers/usb/phy/phy-fsl-usb.c
@@ -1113,7 +1113,7 @@ static long fsl_otg_ioctl(struct file *file, unsigned int cmd,
 		break;
 
 	case SET_A_SUSPEND_REQ:
-		fsl_otg_dev->fsm.a_suspend_req = arg;
+		fsl_otg_dev->fsm.a_suspend_req_inf = arg;
 		break;
 
 	case SET_A_BUS_DROP:
diff --git a/drivers/usb/phy/phy-fsm-usb.c b/drivers/usb/phy/phy-fsm-usb.c
index 5e899edcaf39..cb0367c8e7a7 100644
--- a/drivers/usb/phy/phy-fsm-usb.c
+++ b/drivers/usb/phy/phy-fsm-usb.c
@@ -99,7 +99,7 @@ void otg_leave_state(struct otg_fsm *fsm, enum usb_otg_state old_state)
 	case OTG_STATE_A_SUSPEND:
 		otg_del_timer(fsm, A_AIDL_BDIS);
 		fsm->a_aidl_bdis_tmout = 0;
-		fsm->a_suspend_req = 0;
+		fsm->a_suspend_req_inf = 0;
 		break;
 	case OTG_STATE_A_PERIPHERAL:
 		otg_del_timer(fsm, A_BIDL_ADIS);
@@ -192,7 +192,7 @@ int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state)
 		 * When HNP is triggered while a_bus_req = 0, a_host will
 		 * suspend too fast to complete a_set_b_hnp_en
 		 */
-		if (!fsm->a_bus_req || fsm->a_suspend_req)
+		if (!fsm->a_bus_req || fsm->a_suspend_req_inf)
 			otg_add_timer(fsm, A_WAIT_ENUM);
 		break;
 	case OTG_STATE_A_SUSPEND:
@@ -307,7 +307,7 @@ int otg_statemachine(struct otg_fsm *fsm)
 			otg_set_state(fsm, OTG_STATE_A_WAIT_VFALL);
 		break;
 	case OTG_STATE_A_HOST:
-		if ((!fsm->a_bus_req || fsm->a_suspend_req) &&
+		if ((!fsm->a_bus_req || fsm->a_suspend_req_inf) &&
 				fsm->otg->host->b_hnp_enable)
 			otg_set_state(fsm, OTG_STATE_A_SUSPEND);
 		else if (fsm->id || !fsm->b_conn || fsm->a_bus_drop)
diff --git a/drivers/usb/phy/phy-fsm-usb.h b/drivers/usb/phy/phy-fsm-usb.h
index a74e14aaa839..4049e5cc4abb 100644
--- a/drivers/usb/phy/phy-fsm-usb.h
+++ b/drivers/usb/phy/phy-fsm-usb.h
@@ -54,9 +54,12 @@ enum otg_fsm_timer {
 /* OTG state machine according to the OTG spec */
 struct otg_fsm {
 	/* Input */
+	int a_bus_drop;
+	int a_bus_req;
 	int a_bus_resume;
 	int a_bus_suspend;
 	int a_conn;
+	int b_bus_req;
 	int a_sess_vld;
 	int a_srp_det;
 	int a_vbus_vld;
@@ -72,6 +75,7 @@ struct otg_fsm {
 	int a_set_b_hnp_en;
 	int b_srp_done;
 	int b_hnp_enable;
+	int a_clr_err;
 
 	/* Timeout indicator for timers */
 	int a_wait_vrise_tmout;
@@ -82,11 +86,11 @@ struct otg_fsm {
 	int a_bidl_adis_tmout;
 
 	/* Informative variables */
-	int a_bus_drop;
-	int a_bus_req;
-	int a_clr_err;
-	int a_suspend_req;
-	int b_bus_req;
+	int a_bus_drop_inf;
+	int a_bus_req_inf;
+	int a_clr_err_inf;
+	int a_suspend_req_inf;
+	int b_bus_req_inf;
 
 	/* Output */
 	int drv_vbus;
-- 
cgit 


From 68041785d0c69884c4adb3bcab48f92ac3e75629 Mon Sep 17 00:00:00 2001
From: Anton Tikhomirov <av.tikhomirov@samsung.com>
Date: Thu, 3 Oct 2013 12:42:04 +0900
Subject: usb: phy: Rename "B-device session end SRP" OTG FSM input

In accordance with OTG and EH supplement, the correct name
of the FSM input is b_ssend_srp.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/phy/phy-fsl-usb.c | 4 ++--
 drivers/usb/phy/phy-fsm-usb.c | 2 +-
 drivers/usb/phy/phy-fsm-usb.h | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c
index d13ccd58a423..7f3c73b967ce 100644
--- a/drivers/usb/phy/phy-fsl-usb.c
+++ b/drivers/usb/phy/phy-fsl-usb.c
@@ -1067,7 +1067,7 @@ static int show_fsl_usb2_otg_state(struct device *dev,
 			"b_bus_suspend: %d\n"
 			"b_conn: %d\n"
 			"b_se0_srp: %d\n"
-			"b_sess_end: %d\n"
+			"b_ssend_srp: %d\n"
 			"b_sess_vld: %d\n"
 			"id: %d\n",
 			fsm->a_bus_req,
@@ -1082,7 +1082,7 @@ static int show_fsl_usb2_otg_state(struct device *dev,
 			fsm->b_bus_suspend,
 			fsm->b_conn,
 			fsm->b_se0_srp,
-			fsm->b_sess_end,
+			fsm->b_ssend_srp,
 			fsm->b_sess_vld,
 			fsm->id);
 	size -= t;
diff --git a/drivers/usb/phy/phy-fsm-usb.c b/drivers/usb/phy/phy-fsm-usb.c
index cb0367c8e7a7..d5c6db004531 100644
--- a/drivers/usb/phy/phy-fsm-usb.c
+++ b/drivers/usb/phy/phy-fsm-usb.c
@@ -256,7 +256,7 @@ int otg_statemachine(struct otg_fsm *fsm)
 			otg_set_state(fsm, OTG_STATE_A_IDLE);
 		else if (fsm->b_sess_vld && fsm->otg->gadget)
 			otg_set_state(fsm, OTG_STATE_B_PERIPHERAL);
-		else if (fsm->b_bus_req && fsm->b_sess_end && fsm->b_se0_srp)
+		else if (fsm->b_bus_req && fsm->b_ssend_srp && fsm->b_se0_srp)
 			otg_set_state(fsm, OTG_STATE_B_SRP_INIT);
 		break;
 	case OTG_STATE_B_SRP_INIT:
diff --git a/drivers/usb/phy/phy-fsm-usb.h b/drivers/usb/phy/phy-fsm-usb.h
index 4049e5cc4abb..2f185ed0f54f 100644
--- a/drivers/usb/phy/phy-fsm-usb.h
+++ b/drivers/usb/phy/phy-fsm-usb.h
@@ -67,7 +67,7 @@ struct otg_fsm {
 	int b_bus_suspend;
 	int b_conn;
 	int b_se0_srp;
-	int b_sess_end;
+	int b_ssend_srp;
 	int b_sess_vld;
 	int id;
 
-- 
cgit 


From ec04996a080d825f8acdf0f8fbb2f3ebd5963cf3 Mon Sep 17 00:00:00 2001
From: Anton Tikhomirov <av.tikhomirov@samsung.com>
Date: Thu, 3 Oct 2013 12:42:04 +0900
Subject: usb: phy: Add and use missed OTG FSM inputs/outputs

Several input/output variables missed in current FSM implementation.
This patch adds and makes use of them as specified in OTG and EH
supplement to USB2.0.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/phy/phy-fsm-usb.c | 18 +++++++++++++++---
 drivers/usb/phy/phy-fsm-usb.h | 36 +++++++++++++++++++++++++++++++++++-
 2 files changed, 50 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/phy/phy-fsm-usb.c b/drivers/usb/phy/phy-fsm-usb.c
index d5c6db004531..329c2d2f8595 100644
--- a/drivers/usb/phy/phy-fsm-usb.c
+++ b/drivers/usb/phy/phy-fsm-usb.c
@@ -71,8 +71,11 @@ void otg_leave_state(struct otg_fsm *fsm, enum usb_otg_state old_state)
 	case OTG_STATE_B_IDLE:
 		otg_del_timer(fsm, B_SE0_SRP);
 		fsm->b_se0_srp = 0;
+		fsm->adp_sns = 0;
+		fsm->adp_prb = 0;
 		break;
 	case OTG_STATE_B_SRP_INIT:
+		fsm->data_pulse = 0;
 		fsm->b_srp_done = 0;
 		break;
 	case OTG_STATE_B_PERIPHERAL:
@@ -84,6 +87,7 @@ void otg_leave_state(struct otg_fsm *fsm, enum usb_otg_state old_state)
 	case OTG_STATE_B_HOST:
 		break;
 	case OTG_STATE_A_IDLE:
+		fsm->adp_prb = 0;
 		break;
 	case OTG_STATE_A_WAIT_VRISE:
 		otg_del_timer(fsm, A_WAIT_VRISE);
@@ -131,6 +135,11 @@ int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state)
 		otg_chrg_vbus(fsm, 0);
 		otg_loc_conn(fsm, 0);
 		otg_loc_sof(fsm, 0);
+		/*
+		 * Driver is responsible for starting ADP probing
+		 * if ADP sensing times out.
+		 */
+		otg_start_adp_sns(fsm);
 		otg_set_protocol(fsm, PROTO_UNDEF);
 		otg_add_timer(fsm, B_SE0_SRP);
 		break;
@@ -167,6 +176,7 @@ int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state)
 		otg_chrg_vbus(fsm, 0);
 		otg_loc_conn(fsm, 0);
 		otg_loc_sof(fsm, 0);
+		otg_start_adp_prb(fsm);
 		otg_set_protocol(fsm, PROTO_HOST);
 		break;
 	case OTG_STATE_A_WAIT_VRISE:
@@ -256,7 +266,8 @@ int otg_statemachine(struct otg_fsm *fsm)
 			otg_set_state(fsm, OTG_STATE_A_IDLE);
 		else if (fsm->b_sess_vld && fsm->otg->gadget)
 			otg_set_state(fsm, OTG_STATE_B_PERIPHERAL);
-		else if (fsm->b_bus_req && fsm->b_ssend_srp && fsm->b_se0_srp)
+		else if ((fsm->b_bus_req || fsm->adp_change || fsm->power_up) &&
+				fsm->b_ssend_srp && fsm->b_se0_srp)
 			otg_set_state(fsm, OTG_STATE_B_SRP_INIT);
 		break;
 	case OTG_STATE_B_SRP_INIT:
@@ -283,13 +294,14 @@ int otg_statemachine(struct otg_fsm *fsm)
 	case OTG_STATE_B_HOST:
 		if (!fsm->id || !fsm->b_sess_vld)
 			otg_set_state(fsm, OTG_STATE_B_IDLE);
-		else if (!fsm->b_bus_req || !fsm->a_conn)
+		else if (!fsm->b_bus_req || !fsm->a_conn || fsm->test_device)
 			otg_set_state(fsm, OTG_STATE_B_PERIPHERAL);
 		break;
 	case OTG_STATE_A_IDLE:
 		if (fsm->id)
 			otg_set_state(fsm, OTG_STATE_B_IDLE);
-		else if (!fsm->a_bus_drop && (fsm->a_bus_req || fsm->a_srp_det))
+		else if (!fsm->a_bus_drop && (fsm->a_bus_req ||
+			  fsm->a_srp_det || fsm->adp_change || fsm->power_up))
 			otg_set_state(fsm, OTG_STATE_A_WAIT_VRISE);
 		break;
 	case OTG_STATE_A_WAIT_VRISE:
diff --git a/drivers/usb/phy/phy-fsm-usb.h b/drivers/usb/phy/phy-fsm-usb.h
index 2f185ed0f54f..6ce3b3cfd7b5 100644
--- a/drivers/usb/phy/phy-fsm-usb.h
+++ b/drivers/usb/phy/phy-fsm-usb.h
@@ -54,6 +54,9 @@ enum otg_fsm_timer {
 /* OTG state machine according to the OTG spec */
 struct otg_fsm {
 	/* Input */
+	int adp_change;
+	int power_up;
+	int test_device;
 	int a_bus_drop;
 	int a_bus_req;
 	int a_bus_resume;
@@ -93,9 +96,12 @@ struct otg_fsm {
 	int b_bus_req_inf;
 
 	/* Output */
+	int data_pulse;
 	int drv_vbus;
 	int loc_conn;
 	int loc_sof;
+	int adp_prb;
+	int adp_sns;
 
 	struct otg_fsm_ops *ops;
 	struct usb_otg *otg;
@@ -111,6 +117,8 @@ struct otg_fsm_ops {
 	void	(*loc_conn)(struct otg_fsm *fsm, int on);
 	void	(*loc_sof)(struct otg_fsm *fsm, int on);
 	void	(*start_pulse)(struct otg_fsm *fsm);
+	void	(*start_adp_prb)(struct otg_fsm *fsm);
+	void	(*start_adp_sns)(struct otg_fsm *fsm);
 	void	(*add_timer)(struct otg_fsm *fsm, enum otg_fsm_timer timer);
 	void	(*del_timer)(struct otg_fsm *fsm, enum otg_fsm_timer timer);
 	int	(*start_host)(struct otg_fsm *fsm, int on);
@@ -163,7 +171,33 @@ static inline int otg_start_pulse(struct otg_fsm *fsm)
 {
 	if (!fsm->ops->start_pulse)
 		return -EOPNOTSUPP;
-	fsm->ops->start_pulse(fsm);
+	if (!fsm->data_pulse) {
+		fsm->data_pulse = 1;
+		fsm->ops->start_pulse(fsm);
+	}
+	return 0;
+}
+
+static inline int otg_start_adp_prb(struct otg_fsm *fsm)
+{
+	if (!fsm->ops->start_adp_prb)
+		return -EOPNOTSUPP;
+	if (!fsm->adp_prb) {
+		fsm->adp_sns = 0;
+		fsm->adp_prb = 1;
+		fsm->ops->start_adp_prb(fsm);
+	}
+	return 0;
+}
+
+static inline int otg_start_adp_sns(struct otg_fsm *fsm)
+{
+	if (!fsm->ops->start_adp_sns)
+		return -EOPNOTSUPP;
+	if (!fsm->adp_sns) {
+		fsm->adp_sns = 1;
+		fsm->ops->start_adp_sns(fsm);
+	}
 	return 0;
 }
 
-- 
cgit 


From 4662e5ef54f01ff5333474a825f90ab74f95bc3d Mon Sep 17 00:00:00 2001
From: Anton Tikhomirov <av.tikhomirov@samsung.com>
Date: Thu, 3 Oct 2013 12:42:04 +0900
Subject: usb: phy: Reordering of OTG FSM variables

Reorder variables in struct otg_fsm as they appear in OTG and EH
supplement to USB2.0.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/phy/phy-fsm-usb.h | 46 ++++++++++++++++++++++---------------------
 1 file changed, 24 insertions(+), 22 deletions(-)

diff --git a/drivers/usb/phy/phy-fsm-usb.h b/drivers/usb/phy/phy-fsm-usb.h
index 6ce3b3cfd7b5..7441b46a27f1 100644
--- a/drivers/usb/phy/phy-fsm-usb.h
+++ b/drivers/usb/phy/phy-fsm-usb.h
@@ -54,25 +54,34 @@ enum otg_fsm_timer {
 /* OTG state machine according to the OTG spec */
 struct otg_fsm {
 	/* Input */
+	int id;
 	int adp_change;
 	int power_up;
 	int test_device;
 	int a_bus_drop;
 	int a_bus_req;
+	int a_srp_det;
+	int a_vbus_vld;
+	int b_conn;
 	int a_bus_resume;
 	int a_bus_suspend;
 	int a_conn;
 	int b_bus_req;
-	int a_sess_vld;
-	int a_srp_det;
-	int a_vbus_vld;
-	int b_bus_resume;
-	int b_bus_suspend;
-	int b_conn;
 	int b_se0_srp;
 	int b_ssend_srp;
 	int b_sess_vld;
-	int id;
+	/* Auxilary inputs */
+	int a_sess_vld;
+	int b_bus_resume;
+	int b_bus_suspend;
+
+	/* Output */
+	int data_pulse;
+	int drv_vbus;
+	int loc_conn;
+	int loc_sof;
+	int adp_prb;
+	int adp_sns;
 
 	/* Internal variables */
 	int a_set_b_hnp_en;
@@ -80,6 +89,14 @@ struct otg_fsm {
 	int b_hnp_enable;
 	int a_clr_err;
 
+	/* Informative variables */
+	int a_bus_drop_inf;
+	int a_bus_req_inf;
+	int a_clr_err_inf;
+	int b_bus_req_inf;
+	/* Auxilary informative variables */
+	int a_suspend_req_inf;
+
 	/* Timeout indicator for timers */
 	int a_wait_vrise_tmout;
 	int a_wait_vfall_tmout;
@@ -88,21 +105,6 @@ struct otg_fsm {
 	int b_ase0_brst_tmout;
 	int a_bidl_adis_tmout;
 
-	/* Informative variables */
-	int a_bus_drop_inf;
-	int a_bus_req_inf;
-	int a_clr_err_inf;
-	int a_suspend_req_inf;
-	int b_bus_req_inf;
-
-	/* Output */
-	int data_pulse;
-	int drv_vbus;
-	int loc_conn;
-	int loc_sof;
-	int adp_prb;
-	int adp_sns;
-
 	struct otg_fsm_ops *ops;
 	struct usb_otg *otg;
 
-- 
cgit 


From 13613c133bb8dc70ec404b61345496ba75611dbd Mon Sep 17 00:00:00 2001
From: Robert Baldyga <r.baldyga@samsung.com>
Date: Wed, 2 Oct 2013 11:17:29 +0200
Subject: usb: gadget: s3c-hsotg: fix maxpacket size

This patch changes ep maxpacket value from 512 to 1024, because it's needed
to handle interupt and isochronous endpoints in high-speed mode. This change
doesn't affect on driver functioning, because fifo size (3072) is still enough
for the maximum transaction payload (3*1024 for high-speed high-bandwidtch
endpoints).

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/s3c-hsotg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 24973d71e29a..4691df732c42 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -3068,7 +3068,7 @@ static void s3c_hsotg_initep(struct s3c_hsotg *hsotg,
 
 	hs_ep->parent = hsotg;
 	hs_ep->ep.name = hs_ep->name;
-	hs_ep->ep.maxpacket = epnum ? 512 : EP0_MPS_LIMIT;
+	hs_ep->ep.maxpacket = epnum ? 1024 : EP0_MPS_LIMIT;
 	hs_ep->ep.ops = &s3c_hsotg_ep_ops;
 
 	/*
-- 
cgit 


From 159c7f89494fb64ccd435b7ef5861ecdb64bc379 Mon Sep 17 00:00:00 2001
From: Dinh Nguyen <dinguyen@altera.com>
Date: Tue, 1 Oct 2013 14:42:27 -0500
Subject: arm: socfpga: Add clock for smp_twd timer

Assign a clock for the twd-timer.

Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Ian Campbell <ian.campbell@citrix.com>
CC: linux-arm-kernel@lists.infradead.org
---
 arch/arm/boot/dts/socfpga.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index e273fa993b8c..e7260ca9eaf1 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -473,6 +473,7 @@
 			compatible = "arm,cortex-a9-twd-timer";
 			reg = <0xfffec600 0x100>;
 			interrupts = <1 13 0xf04>;
+			clocks = <&mpu_periph_clk>;
 		};
 
 		timer0: timer0@ffc08000 {
-- 
cgit 


From e4e7f10bfc4069925e99cc4b428c3434e30b6c3f Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Mon, 16 Sep 2013 18:31:38 +0200
Subject: ARM: add support for bit sliced AES using NEON instructions

Bit sliced AES gives around 45% speedup on Cortex-A15 for encryption
and around 25% for decryption. This implementation of the AES algorithm
does not rely on any lookup tables so it is believed to be invulnerable
to cache timing attacks.

This algorithm processes up to 8 blocks in parallel in constant time. This
means that it is not usable by chaining modes that are strictly sequential
in nature, such as CBC encryption. CBC decryption, however, can benefit from
this implementation and runs about 25% faster. The other chaining modes
implemented in this module, XTS and CTR, can execute fully in parallel in
both directions.

The core code has been adopted from the OpenSSL project (in collaboration
with the original author, on cc). For ease of maintenance, this version is
identical to the upstream OpenSSL code, i.e., all modifications that were
required to make it suitable for inclusion into the kernel have been made
upstream. The original can be found here:

    http://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=6f6a6130

Note to integrators:
While this implementation is significantly faster than the existing table
based ones (generic or ARM asm), especially in CTR mode, the effects on
power efficiency are unclear as of yet. This code does fundamentally more
work, by calculating values that the table based code obtains by a simple
lookup; only by doing all of that work in a SIMD fashion, it manages to
perform better.

Cc: Andy Polyakov <appro@openssl.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
 arch/arm/crypto/Makefile             |   14 +-
 arch/arm/crypto/aesbs-core.S_shipped | 2544 ++++++++++++++++++++++++++++++++++
 arch/arm/crypto/aesbs-glue.c         |  434 ++++++
 arch/arm/crypto/bsaes-armv7.pl       | 2467 +++++++++++++++++++++++++++++++++
 crypto/Kconfig                       |   16 +
 5 files changed, 5473 insertions(+), 2 deletions(-)
 create mode 100644 arch/arm/crypto/aesbs-core.S_shipped
 create mode 100644 arch/arm/crypto/aesbs-glue.c
 create mode 100644 arch/arm/crypto/bsaes-armv7.pl

diff --git a/arch/arm/crypto/Makefile b/arch/arm/crypto/Makefile
index a2c83851bc90..81cda39860c5 100644
--- a/arch/arm/crypto/Makefile
+++ b/arch/arm/crypto/Makefile
@@ -3,7 +3,17 @@
 #
 
 obj-$(CONFIG_CRYPTO_AES_ARM) += aes-arm.o
+obj-$(CONFIG_CRYPTO_AES_ARM_BS) += aes-arm-bs.o
 obj-$(CONFIG_CRYPTO_SHA1_ARM) += sha1-arm.o
 
-aes-arm-y  := aes-armv4.o aes_glue.o
-sha1-arm-y := sha1-armv4-large.o sha1_glue.o
+aes-arm-y	:= aes-armv4.o aes_glue.o
+aes-arm-bs-y	:= aesbs-core.o aesbs-glue.o
+sha1-arm-y	:= sha1-armv4-large.o sha1_glue.o
+
+quiet_cmd_perl = PERL    $@
+      cmd_perl = $(PERL) $(<) > $(@)
+
+$(src)/aesbs-core.S_shipped: $(src)/bsaes-armv7.pl
+	$(call cmd,perl)
+
+.PRECIOUS: $(obj)/aesbs-core.S
diff --git a/arch/arm/crypto/aesbs-core.S_shipped b/arch/arm/crypto/aesbs-core.S_shipped
new file mode 100644
index 000000000000..64205d453260
--- /dev/null
+++ b/arch/arm/crypto/aesbs-core.S_shipped
@@ -0,0 +1,2544 @@
+
+@ ====================================================================
+@ Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
+@ project. The module is, however, dual licensed under OpenSSL and
+@ CRYPTOGAMS licenses depending on where you obtain it. For further
+@ details see http://www.openssl.org/~appro/cryptogams/.
+@
+@ Specific modes and adaptation for Linux kernel by Ard Biesheuvel
+@ <ard.biesheuvel@linaro.org>. Permission to use under GPL terms is
+@ granted.
+@ ====================================================================
+
+@ Bit-sliced AES for ARM NEON
+@
+@ February 2012.
+@
+@ This implementation is direct adaptation of bsaes-x86_64 module for
+@ ARM NEON. Except that this module is endian-neutral [in sense that
+@ it can be compiled for either endianness] by courtesy of vld1.8's
+@ neutrality. Initial version doesn't implement interface to OpenSSL,
+@ only low-level primitives and unsupported entry points, just enough
+@ to collect performance results, which for Cortex-A8 core are:
+@
+@ encrypt	19.5 cycles per byte processed with 128-bit key
+@ decrypt	22.1 cycles per byte processed with 128-bit key
+@ key conv.	440  cycles per 128-bit key/0.18 of 8x block
+@
+@ Snapdragon S4 encrypts byte in 17.6 cycles and decrypts in 19.7,
+@ which is [much] worse than anticipated (for further details see
+@ http://www.openssl.org/~appro/Snapdragon-S4.html).
+@
+@ Cortex-A15 manages in 14.2/16.1 cycles [when integer-only code
+@ manages in 20.0 cycles].
+@
+@ When comparing to x86_64 results keep in mind that NEON unit is
+@ [mostly] single-issue and thus can't [fully] benefit from
+@ instruction-level parallelism. And when comparing to aes-armv4
+@ results keep in mind key schedule conversion overhead (see
+@ bsaes-x86_64.pl for further details)...
+@
+@						<appro@openssl.org>
+
+@ April-August 2013
+@
+@ Add CBC, CTR and XTS subroutines, adapt for kernel use.
+@
+@					<ard.biesheuvel@linaro.org>
+
+#ifndef __KERNEL__
+# include "arm_arch.h"
+
+# define VFP_ABI_PUSH	vstmdb	sp!,{d8-d15}
+# define VFP_ABI_POP	vldmia	sp!,{d8-d15}
+# define VFP_ABI_FRAME	0x40
+#else
+# define VFP_ABI_PUSH
+# define VFP_ABI_POP
+# define VFP_ABI_FRAME	0
+# define BSAES_ASM_EXTENDED_KEY
+# define XTS_CHAIN_TWEAK
+# define __ARM_ARCH__ __LINUX_ARM_ARCH__
+#endif
+
+#ifdef __thumb__
+# define adrl adr
+#endif
+
+#if __ARM_ARCH__>=7
+.text
+.syntax	unified 	@ ARMv7-capable assembler is expected to handle this
+#ifdef __thumb2__
+.thumb
+#else
+.code   32
+#endif
+
+.fpu	neon
+
+.type	_bsaes_decrypt8,%function
+.align	4
+_bsaes_decrypt8:
+	adr	r6,_bsaes_decrypt8
+	vldmia	r4!, {q9}		@ round 0 key
+	add	r6,r6,#.LM0ISR-_bsaes_decrypt8
+
+	vldmia	r6!, {q8}		@ .LM0ISR
+	veor	q10, q0, q9	@ xor with round0 key
+	veor	q11, q1, q9
+	 vtbl.8	d0, {q10}, d16
+	 vtbl.8	d1, {q10}, d17
+	veor	q12, q2, q9
+	 vtbl.8	d2, {q11}, d16
+	 vtbl.8	d3, {q11}, d17
+	veor	q13, q3, q9
+	 vtbl.8	d4, {q12}, d16
+	 vtbl.8	d5, {q12}, d17
+	veor	q14, q4, q9
+	 vtbl.8	d6, {q13}, d16
+	 vtbl.8	d7, {q13}, d17
+	veor	q15, q5, q9
+	 vtbl.8	d8, {q14}, d16
+	 vtbl.8	d9, {q14}, d17
+	veor	q10, q6, q9
+	 vtbl.8	d10, {q15}, d16
+	 vtbl.8	d11, {q15}, d17
+	veor	q11, q7, q9
+	 vtbl.8	d12, {q10}, d16
+	 vtbl.8	d13, {q10}, d17
+	 vtbl.8	d14, {q11}, d16
+	 vtbl.8	d15, {q11}, d17
+	vmov.i8	q8,#0x55			@ compose .LBS0
+	vmov.i8	q9,#0x33			@ compose .LBS1
+	vshr.u64	q10, q6, #1
+	 vshr.u64	q11, q4, #1
+	veor		q10, q10, q7
+	 veor		q11, q11, q5
+	vand		q10, q10, q8
+	 vand		q11, q11, q8
+	veor		q7, q7, q10
+	vshl.u64	q10, q10, #1
+	 veor		q5, q5, q11
+	 vshl.u64	q11, q11, #1
+	veor		q6, q6, q10
+	 veor		q4, q4, q11
+	vshr.u64	q10, q2, #1
+	 vshr.u64	q11, q0, #1
+	veor		q10, q10, q3
+	 veor		q11, q11, q1
+	vand		q10, q10, q8
+	 vand		q11, q11, q8
+	veor		q3, q3, q10
+	vshl.u64	q10, q10, #1
+	 veor		q1, q1, q11
+	 vshl.u64	q11, q11, #1
+	veor		q2, q2, q10
+	 veor		q0, q0, q11
+	vmov.i8	q8,#0x0f			@ compose .LBS2
+	vshr.u64	q10, q5, #2
+	 vshr.u64	q11, q4, #2
+	veor		q10, q10, q7
+	 veor		q11, q11, q6
+	vand		q10, q10, q9
+	 vand		q11, q11, q9
+	veor		q7, q7, q10
+	vshl.u64	q10, q10, #2
+	 veor		q6, q6, q11
+	 vshl.u64	q11, q11, #2
+	veor		q5, q5, q10
+	 veor		q4, q4, q11
+	vshr.u64	q10, q1, #2
+	 vshr.u64	q11, q0, #2
+	veor		q10, q10, q3
+	 veor		q11, q11, q2
+	vand		q10, q10, q9
+	 vand		q11, q11, q9
+	veor		q3, q3, q10
+	vshl.u64	q10, q10, #2
+	 veor		q2, q2, q11
+	 vshl.u64	q11, q11, #2
+	veor		q1, q1, q10
+	 veor		q0, q0, q11
+	vshr.u64	q10, q3, #4
+	 vshr.u64	q11, q2, #4
+	veor		q10, q10, q7
+	 veor		q11, q11, q6
+	vand		q10, q10, q8
+	 vand		q11, q11, q8
+	veor		q7, q7, q10
+	vshl.u64	q10, q10, #4
+	 veor		q6, q6, q11
+	 vshl.u64	q11, q11, #4
+	veor		q3, q3, q10
+	 veor		q2, q2, q11
+	vshr.u64	q10, q1, #4
+	 vshr.u64	q11, q0, #4
+	veor		q10, q10, q5
+	 veor		q11, q11, q4
+	vand		q10, q10, q8
+	 vand		q11, q11, q8
+	veor		q5, q5, q10
+	vshl.u64	q10, q10, #4
+	 veor		q4, q4, q11
+	 vshl.u64	q11, q11, #4
+	veor		q1, q1, q10
+	 veor		q0, q0, q11
+	sub	r5,r5,#1
+	b	.Ldec_sbox
+.align	4
+.Ldec_loop:
+	vldmia	r4!, {q8-q11}
+	veor	q8, q8, q0
+	veor	q9, q9, q1
+	vtbl.8	d0, {q8}, d24
+	vtbl.8	d1, {q8}, d25
+	vldmia	r4!, {q8}
+	veor	q10, q10, q2
+	vtbl.8	d2, {q9}, d24
+	vtbl.8	d3, {q9}, d25
+	vldmia	r4!, {q9}
+	veor	q11, q11, q3
+	vtbl.8	d4, {q10}, d24
+	vtbl.8	d5, {q10}, d25
+	vldmia	r4!, {q10}
+	vtbl.8	d6, {q11}, d24
+	vtbl.8	d7, {q11}, d25
+	vldmia	r4!, {q11}
+	veor	q8, q8, q4
+	veor	q9, q9, q5
+	vtbl.8	d8, {q8}, d24
+	vtbl.8	d9, {q8}, d25
+	veor	q10, q10, q6
+	vtbl.8	d10, {q9}, d24
+	vtbl.8	d11, {q9}, d25
+	veor	q11, q11, q7
+	vtbl.8	d12, {q10}, d24
+	vtbl.8	d13, {q10}, d25
+	vtbl.8	d14, {q11}, d24
+	vtbl.8	d15, {q11}, d25
+.Ldec_sbox:
+	 veor	q1, q1, q4
+	veor	q3, q3, q4
+
+	veor	q4, q4, q7
+	 veor	q1, q1, q6
+	veor	q2, q2, q7
+	veor	q6, q6, q4
+
+	veor	q0, q0, q1
+	veor	q2, q2, q5
+	 veor	q7, q7, q6
+	veor	q3, q3, q0
+	veor	q5, q5, q0
+	veor	q1, q1, q3
+	veor	q11, q3, q0
+	veor	q10, q7, q4
+	veor	q9, q1, q6
+	veor	q13, q4, q0
+	 vmov	q8, q10
+	veor	q12, q5, q2
+
+	vorr	q10, q10, q9
+	veor	q15, q11, q8
+	vand	q14, q11, q12
+	vorr	q11, q11, q12
+	veor	q12, q12, q9
+	vand	q8, q8, q9
+	veor	q9, q6, q2
+	vand	q15, q15, q12
+	vand	q13, q13, q9
+	veor	q9, q3, q7
+	veor	q12, q1, q5
+	veor	q11, q11, q13
+	veor	q10, q10, q13
+	vand	q13, q9, q12
+	vorr	q9, q9, q12
+	veor	q11, q11, q15
+	veor	q8, q8, q13
+	veor	q10, q10, q14
+	veor	q9, q9, q15
+	veor	q8, q8, q14
+	vand	q12, q4, q6
+	veor	q9, q9, q14
+	vand	q13, q0, q2
+	vand	q14, q7, q1
+	vorr	q15, q3, q5
+	veor	q11, q11, q12
+	veor	q9, q9, q14
+	veor	q8, q8, q15
+	veor	q10, q10, q13
+
+	@ Inv_GF16 	0, 	1, 	2, 	3, s0, s1, s2, s3
+
+	@ new smaller inversion
+
+	vand	q14, q11, q9
+	vmov	q12, q8
+
+	veor	q13, q10, q14
+	veor	q15, q8, q14
+	veor	q14, q8, q14	@ q14=q15
+
+	vbsl	q13, q9, q8
+	vbsl	q15, q11, q10
+	veor	q11, q11, q10
+
+	vbsl	q12, q13, q14
+	vbsl	q8, q14, q13
+
+	vand	q14, q12, q15
+	veor	q9, q9, q8
+
+	veor	q14, q14, q11
+	veor	q12, q5, q2
+	veor	q8, q1, q6
+	veor 	q10, q15, q14
+	vand	q10, q10, q5
+	veor	q5, q5, q1
+	vand	q11, q1, q15
+	vand	q5, q5, q14
+	veor	q1, q11, q10
+	veor	q5, q5, q11
+	veor	q15, q15, q13
+	veor	q14, q14, q9
+	veor	q11, q15, q14
+	 veor 	q10, q13, q9
+	vand	q11, q11, q12
+	 vand	q10, q10, q2
+	veor	q12, q12, q8
+	 veor	q2, q2, q6
+	vand	q8, q8, q15
+	 vand	q6, q6, q13
+	vand	q12, q12, q14
+	 vand	q2, q2, q9
+	veor	q8, q8, q12
+	 veor	q2, q2, q6
+	veor	q12, q12, q11
+	 veor	q6, q6, q10
+	veor	q5, q5, q12
+	veor	q2, q2, q12
+	veor	q1, q1, q8
+	veor	q6, q6, q8
+
+	veor	q12, q3, q0
+	veor	q8, q7, q4
+	veor	q11, q15, q14
+	 veor 	q10, q13, q9
+	vand	q11, q11, q12
+	 vand	q10, q10, q0
+	veor	q12, q12, q8
+	 veor	q0, q0, q4
+	vand	q8, q8, q15
+	 vand	q4, q4, q13
+	vand	q12, q12, q14
+	 vand	q0, q0, q9
+	veor	q8, q8, q12
+	 veor	q0, q0, q4
+	veor	q12, q12, q11
+	 veor	q4, q4, q10
+	veor	q15, q15, q13
+	veor	q14, q14, q9
+	veor 	q10, q15, q14
+	vand	q10, q10, q3
+	veor	q3, q3, q7
+	vand	q11, q7, q15
+	vand	q3, q3, q14
+	veor	q7, q11, q10
+	veor	q3, q3, q11
+	veor	q3, q3, q12
+	veor	q0, q0, q12
+	veor	q7, q7, q8
+	veor	q4, q4, q8
+	veor	q1, q1, q7
+	veor	q6, q6, q5
+
+	veor	q4, q4, q1
+	veor	q2, q2, q7
+	veor	q5, q5, q7
+	veor	q4, q4, q2
+	 veor 	q7, q7, q0
+	veor	q4, q4, q5
+	 veor	q3, q3, q6
+	 veor	q6, q6, q1
+	veor	q3, q3, q4
+
+	veor	q4, q4, q0
+	veor	q7, q7, q3
+	subs	r5,r5,#1
+	bcc	.Ldec_done
+	@ multiplication by 0x05-0x00-0x04-0x00
+	vext.8	q8, q0, q0, #8
+	vext.8	q14, q3, q3, #8
+	vext.8	q15, q5, q5, #8
+	veor	q8, q8, q0
+	vext.8	q9, q1, q1, #8
+	veor	q14, q14, q3
+	vext.8	q10, q6, q6, #8
+	veor	q15, q15, q5
+	vext.8	q11, q4, q4, #8
+	veor	q9, q9, q1
+	vext.8	q12, q2, q2, #8
+	veor	q10, q10, q6
+	vext.8	q13, q7, q7, #8
+	veor	q11, q11, q4
+	veor	q12, q12, q2
+	veor	q13, q13, q7
+
+	 veor	q0, q0, q14
+	 veor	q1, q1, q14
+	 veor	q6, q6, q8
+	 veor	q2, q2, q10
+	 veor	q4, q4, q9
+	 veor	q1, q1, q15
+	 veor	q6, q6, q15
+	 veor	q2, q2, q14
+	 veor	q7, q7, q11
+	 veor	q4, q4, q14
+	 veor	q3, q3, q12
+	 veor	q2, q2, q15
+	 veor	q7, q7, q15
+	 veor	q5, q5, q13
+	vext.8	q8, q0, q0, #12	@ x0 <<< 32
+	vext.8	q9, q1, q1, #12
+	 veor	q0, q0, q8		@ x0 ^ (x0 <<< 32)
+	vext.8	q10, q6, q6, #12
+	 veor	q1, q1, q9
+	vext.8	q11, q4, q4, #12
+	 veor	q6, q6, q10
+	vext.8	q12, q2, q2, #12
+	 veor	q4, q4, q11
+	vext.8	q13, q7, q7, #12
+	 veor	q2, q2, q12
+	vext.8	q14, q3, q3, #12
+	 veor	q7, q7, q13
+	vext.8	q15, q5, q5, #12
+	 veor	q3, q3, q14
+
+	veor	q9, q9, q0
+	 veor	q5, q5, q15
+	 vext.8	q0, q0, q0, #8		@ (x0 ^ (x0 <<< 32)) <<< 64)
+	veor	q10, q10, q1
+	veor	q8, q8, q5
+	veor	q9, q9, q5
+	 vext.8	q1, q1, q1, #8
+	veor	q13, q13, q2
+	 veor	q0, q0, q8
+	veor	q14, q14, q7
+	 veor	q1, q1, q9
+	 vext.8	q8, q2, q2, #8
+	veor	q12, q12, q4
+	 vext.8	q9, q7, q7, #8
+	veor	q15, q15, q3
+	 vext.8	q2, q4, q4, #8
+	veor	q11, q11, q6
+	 vext.8	q7, q5, q5, #8
+	veor	q12, q12, q5
+	 vext.8	q4, q3, q3, #8
+	veor	q11, q11, q5
+	 vext.8	q3, q6, q6, #8
+	veor	q5, q9, q13
+	veor	q11, q11, q2
+	veor	q7, q7, q15
+	veor	q6, q4, q14
+	veor	q4, q8, q12
+	veor	q2, q3, q10
+	vmov	q3, q11
+	 @ vmov	q5, q9
+	vldmia	r6, {q12}		@ .LISR
+	ite	eq				@ Thumb2 thing, sanity check in ARM
+	addeq	r6,r6,#0x10
+	bne	.Ldec_loop
+	vldmia	r6, {q12}		@ .LISRM0
+	b	.Ldec_loop
+.align	4
+.Ldec_done:
+	vmov.i8	q8,#0x55			@ compose .LBS0
+	vmov.i8	q9,#0x33			@ compose .LBS1
+	vshr.u64	q10, q3, #1
+	 vshr.u64	q11, q2, #1
+	veor		q10, q10, q5
+	 veor		q11, q11, q7
+	vand		q10, q10, q8
+	 vand		q11, q11, q8
+	veor		q5, q5, q10
+	vshl.u64	q10, q10, #1
+	 veor		q7, q7, q11
+	 vshl.u64	q11, q11, #1
+	veor		q3, q3, q10
+	 veor		q2, q2, q11
+	vshr.u64	q10, q6, #1
+	 vshr.u64	q11, q0, #1
+	veor		q10, q10, q4
+	 veor		q11, q11, q1
+	vand		q10, q10, q8
+	 vand		q11, q11, q8
+	veor		q4, q4, q10
+	vshl.u64	q10, q10, #1
+	 veor		q1, q1, q11
+	 vshl.u64	q11, q11, #1
+	veor		q6, q6, q10
+	 veor		q0, q0, q11
+	vmov.i8	q8,#0x0f			@ compose .LBS2
+	vshr.u64	q10, q7, #2
+	 vshr.u64	q11, q2, #2
+	veor		q10, q10, q5
+	 veor		q11, q11, q3
+	vand		q10, q10, q9
+	 vand		q11, q11, q9
+	veor		q5, q5, q10
+	vshl.u64	q10, q10, #2
+	 veor		q3, q3, q11
+	 vshl.u64	q11, q11, #2
+	veor		q7, q7, q10
+	 veor		q2, q2, q11
+	vshr.u64	q10, q1, #2
+	 vshr.u64	q11, q0, #2
+	veor		q10, q10, q4
+	 veor		q11, q11, q6
+	vand		q10, q10, q9
+	 vand		q11, q11, q9
+	veor		q4, q4, q10
+	vshl.u64	q10, q10, #2
+	 veor		q6, q6, q11
+	 vshl.u64	q11, q11, #2
+	veor		q1, q1, q10
+	 veor		q0, q0, q11
+	vshr.u64	q10, q4, #4
+	 vshr.u64	q11, q6, #4
+	veor		q10, q10, q5
+	 veor		q11, q11, q3
+	vand		q10, q10, q8
+	 vand		q11, q11, q8
+	veor		q5, q5, q10
+	vshl.u64	q10, q10, #4
+	 veor		q3, q3, q11
+	 vshl.u64	q11, q11, #4
+	veor		q4, q4, q10
+	 veor		q6, q6, q11
+	vshr.u64	q10, q1, #4
+	 vshr.u64	q11, q0, #4
+	veor		q10, q10, q7
+	 veor		q11, q11, q2
+	vand		q10, q10, q8
+	 vand		q11, q11, q8
+	veor		q7, q7, q10
+	vshl.u64	q10, q10, #4
+	 veor		q2, q2, q11
+	 vshl.u64	q11, q11, #4
+	veor		q1, q1, q10
+	 veor		q0, q0, q11
+	vldmia	r4, {q8}			@ last round key
+	veor	q6, q6, q8
+	veor	q4, q4, q8
+	veor	q2, q2, q8
+	veor	q7, q7, q8
+	veor	q3, q3, q8
+	veor	q5, q5, q8
+	veor	q0, q0, q8
+	veor	q1, q1, q8
+	bx	lr
+.size	_bsaes_decrypt8,.-_bsaes_decrypt8
+
+.type	_bsaes_const,%object
+.align	6
+_bsaes_const:
+.LM0ISR:	@ InvShiftRows constants
+	.quad	0x0a0e0206070b0f03, 0x0004080c0d010509
+.LISR:
+	.quad	0x0504070602010003, 0x0f0e0d0c080b0a09
+.LISRM0:
+	.quad	0x01040b0e0205080f, 0x0306090c00070a0d
+.LM0SR:		@ ShiftRows constants
+	.quad	0x0a0e02060f03070b, 0x0004080c05090d01
+.LSR:
+	.quad	0x0504070600030201, 0x0f0e0d0c0a09080b
+.LSRM0:
+	.quad	0x0304090e00050a0f, 0x01060b0c0207080d
+.LM0:
+	.quad	0x02060a0e03070b0f, 0x0004080c0105090d
+.LREVM0SR:
+	.quad	0x090d01050c000408, 0x03070b0f060a0e02
+.asciz	"Bit-sliced AES for NEON, CRYPTOGAMS by <appro@openssl.org>"
+.align	6
+.size	_bsaes_const,.-_bsaes_const
+
+.type	_bsaes_encrypt8,%function
+.align	4
+_bsaes_encrypt8:
+	adr	r6,_bsaes_encrypt8
+	vldmia	r4!, {q9}		@ round 0 key
+	sub	r6,r6,#_bsaes_encrypt8-.LM0SR
+
+	vldmia	r6!, {q8}		@ .LM0SR
+_bsaes_encrypt8_alt:
+	veor	q10, q0, q9	@ xor with round0 key
+	veor	q11, q1, q9
+	 vtbl.8	d0, {q10}, d16
+	 vtbl.8	d1, {q10}, d17
+	veor	q12, q2, q9
+	 vtbl.8	d2, {q11}, d16
+	 vtbl.8	d3, {q11}, d17
+	veor	q13, q3, q9
+	 vtbl.8	d4, {q12}, d16
+	 vtbl.8	d5, {q12}, d17
+	veor	q14, q4, q9
+	 vtbl.8	d6, {q13}, d16
+	 vtbl.8	d7, {q13}, d17
+	veor	q15, q5, q9
+	 vtbl.8	d8, {q14}, d16
+	 vtbl.8	d9, {q14}, d17
+	veor	q10, q6, q9
+	 vtbl.8	d10, {q15}, d16
+	 vtbl.8	d11, {q15}, d17
+	veor	q11, q7, q9
+	 vtbl.8	d12, {q10}, d16
+	 vtbl.8	d13, {q10}, d17
+	 vtbl.8	d14, {q11}, d16
+	 vtbl.8	d15, {q11}, d17
+_bsaes_encrypt8_bitslice:
+	vmov.i8	q8,#0x55			@ compose .LBS0
+	vmov.i8	q9,#0x33			@ compose .LBS1
+	vshr.u64	q10, q6, #1
+	 vshr.u64	q11, q4, #1
+	veor		q10, q10, q7
+	 veor		q11, q11, q5
+	vand		q10, q10, q8
+	 vand		q11, q11, q8
+	veor		q7, q7, q10
+	vshl.u64	q10, q10, #1
+	 veor		q5, q5, q11
+	 vshl.u64	q11, q11, #1
+	veor		q6, q6, q10
+	 veor		q4, q4, q11
+	vshr.u64	q10, q2, #1
+	 vshr.u64	q11, q0, #1
+	veor		q10, q10, q3
+	 veor		q11, q11, q1
+	vand		q10, q10, q8
+	 vand		q11, q11, q8
+	veor		q3, q3, q10
+	vshl.u64	q10, q10, #1
+	 veor		q1, q1, q11
+	 vshl.u64	q11, q11, #1
+	veor		q2, q2, q10
+	 veor		q0, q0, q11
+	vmov.i8	q8,#0x0f			@ compose .LBS2
+	vshr.u64	q10, q5, #2
+	 vshr.u64	q11, q4, #2
+	veor		q10, q10, q7
+	 veor		q11, q11, q6
+	vand		q10, q10, q9
+	 vand		q11, q11, q9
+	veor		q7, q7, q10
+	vshl.u64	q10, q10, #2
+	 veor		q6, q6, q11
+	 vshl.u64	q11, q11, #2
+	veor		q5, q5, q10
+	 veor		q4, q4, q11
+	vshr.u64	q10, q1, #2
+	 vshr.u64	q11, q0, #2
+	veor		q10, q10, q3
+	 veor		q11, q11, q2
+	vand		q10, q10, q9
+	 vand		q11, q11, q9
+	veor		q3, q3, q10
+	vshl.u64	q10, q10, #2
+	 veor		q2, q2, q11
+	 vshl.u64	q11, q11, #2
+	veor		q1, q1, q10
+	 veor		q0, q0, q11
+	vshr.u64	q10, q3, #4
+	 vshr.u64	q11, q2, #4
+	veor		q10, q10, q7
+	 veor		q11, q11, q6
+	vand		q10, q10, q8
+	 vand		q11, q11, q8
+	veor		q7, q7, q10
+	vshl.u64	q10, q10, #4
+	 veor		q6, q6, q11
+	 vshl.u64	q11, q11, #4
+	veor		q3, q3, q10
+	 veor		q2, q2, q11
+	vshr.u64	q10, q1, #4
+	 vshr.u64	q11, q0, #4
+	veor		q10, q10, q5
+	 veor		q11, q11, q4
+	vand		q10, q10, q8
+	 vand		q11, q11, q8
+	veor		q5, q5, q10
+	vshl.u64	q10, q10, #4
+	 veor		q4, q4, q11
+	 vshl.u64	q11, q11, #4
+	veor		q1, q1, q10
+	 veor		q0, q0, q11
+	sub	r5,r5,#1
+	b	.Lenc_sbox
+.align	4
+.Lenc_loop:
+	vldmia	r4!, {q8-q11}
+	veor	q8, q8, q0
+	veor	q9, q9, q1
+	vtbl.8	d0, {q8}, d24
+	vtbl.8	d1, {q8}, d25
+	vldmia	r4!, {q8}
+	veor	q10, q10, q2
+	vtbl.8	d2, {q9}, d24
+	vtbl.8	d3, {q9}, d25
+	vldmia	r4!, {q9}
+	veor	q11, q11, q3
+	vtbl.8	d4, {q10}, d24
+	vtbl.8	d5, {q10}, d25
+	vldmia	r4!, {q10}
+	vtbl.8	d6, {q11}, d24
+	vtbl.8	d7, {q11}, d25
+	vldmia	r4!, {q11}
+	veor	q8, q8, q4
+	veor	q9, q9, q5
+	vtbl.8	d8, {q8}, d24
+	vtbl.8	d9, {q8}, d25
+	veor	q10, q10, q6
+	vtbl.8	d10, {q9}, d24
+	vtbl.8	d11, {q9}, d25
+	veor	q11, q11, q7
+	vtbl.8	d12, {q10}, d24
+	vtbl.8	d13, {q10}, d25
+	vtbl.8	d14, {q11}, d24
+	vtbl.8	d15, {q11}, d25
+.Lenc_sbox:
+	veor	q2, q2, q1
+	veor	q5, q5, q6
+	veor	q3, q3, q0
+	veor	q6, q6, q2
+	veor	q5, q5, q0
+
+	veor	q6, q6, q3
+	veor	q3, q3, q7
+	veor	q7, q7, q5
+	veor	q3, q3, q4
+	veor	q4, q4, q5
+
+	veor	q2, q2, q7
+	veor	q3, q3, q1
+	veor	q1, q1, q5
+	veor	q11, q7, q4
+	veor	q10, q1, q2
+	veor	q9, q5, q3
+	veor	q13, q2, q4
+	 vmov	q8, q10
+	veor	q12, q6, q0
+
+	vorr	q10, q10, q9
+	veor	q15, q11, q8
+	vand	q14, q11, q12
+	vorr	q11, q11, q12
+	veor	q12, q12, q9
+	vand	q8, q8, q9
+	veor	q9, q3, q0
+	vand	q15, q15, q12
+	vand	q13, q13, q9
+	veor	q9, q7, q1
+	veor	q12, q5, q6
+	veor	q11, q11, q13
+	veor	q10, q10, q13
+	vand	q13, q9, q12
+	vorr	q9, q9, q12
+	veor	q11, q11, q15
+	veor	q8, q8, q13
+	veor	q10, q10, q14
+	veor	q9, q9, q15
+	veor	q8, q8, q14
+	vand	q12, q2, q3
+	veor	q9, q9, q14
+	vand	q13, q4, q0
+	vand	q14, q1, q5
+	vorr	q15, q7, q6
+	veor	q11, q11, q12
+	veor	q9, q9, q14
+	veor	q8, q8, q15
+	veor	q10, q10, q13
+
+	@ Inv_GF16 	0, 	1, 	2, 	3, s0, s1, s2, s3
+
+	@ new smaller inversion
+
+	vand	q14, q11, q9
+	vmov	q12, q8
+
+	veor	q13, q10, q14
+	veor	q15, q8, q14
+	veor	q14, q8, q14	@ q14=q15
+
+	vbsl	q13, q9, q8
+	vbsl	q15, q11, q10
+	veor	q11, q11, q10
+
+	vbsl	q12, q13, q14
+	vbsl	q8, q14, q13
+
+	vand	q14, q12, q15
+	veor	q9, q9, q8
+
+	veor	q14, q14, q11
+	veor	q12, q6, q0
+	veor	q8, q5, q3
+	veor 	q10, q15, q14
+	vand	q10, q10, q6
+	veor	q6, q6, q5
+	vand	q11, q5, q15
+	vand	q6, q6, q14
+	veor	q5, q11, q10
+	veor	q6, q6, q11
+	veor	q15, q15, q13
+	veor	q14, q14, q9
+	veor	q11, q15, q14
+	 veor 	q10, q13, q9
+	vand	q11, q11, q12
+	 vand	q10, q10, q0
+	veor	q12, q12, q8
+	 veor	q0, q0, q3
+	vand	q8, q8, q15
+	 vand	q3, q3, q13
+	vand	q12, q12, q14
+	 vand	q0, q0, q9
+	veor	q8, q8, q12
+	 veor	q0, q0, q3
+	veor	q12, q12, q11
+	 veor	q3, q3, q10
+	veor	q6, q6, q12
+	veor	q0, q0, q12
+	veor	q5, q5, q8
+	veor	q3, q3, q8
+
+	veor	q12, q7, q4
+	veor	q8, q1, q2
+	veor	q11, q15, q14
+	 veor 	q10, q13, q9
+	vand	q11, q11, q12
+	 vand	q10, q10, q4
+	veor	q12, q12, q8
+	 veor	q4, q4, q2
+	vand	q8, q8, q15
+	 vand	q2, q2, q13
+	vand	q12, q12, q14
+	 vand	q4, q4, q9
+	veor	q8, q8, q12
+	 veor	q4, q4, q2
+	veor	q12, q12, q11
+	 veor	q2, q2, q10
+	veor	q15, q15, q13
+	veor	q14, q14, q9
+	veor 	q10, q15, q14
+	vand	q10, q10, q7
+	veor	q7, q7, q1
+	vand	q11, q1, q15
+	vand	q7, q7, q14
+	veor	q1, q11, q10
+	veor	q7, q7, q11
+	veor	q7, q7, q12
+	veor	q4, q4, q12
+	veor	q1, q1, q8
+	veor	q2, q2, q8
+	veor	q7, q7, q0
+	veor	q1, q1, q6
+	veor	q6, q6, q0
+	veor	q4, q4, q7
+	veor	q0, q0, q1
+
+	veor	q1, q1, q5
+	veor	q5, q5, q2
+	veor	q2, q2, q3
+	veor	q3, q3, q5
+	veor	q4, q4, q5
+
+	veor	q6, q6, q3
+	subs	r5,r5,#1
+	bcc	.Lenc_done
+	vext.8	q8, q0, q0, #12	@ x0 <<< 32
+	vext.8	q9, q1, q1, #12
+	 veor	q0, q0, q8		@ x0 ^ (x0 <<< 32)
+	vext.8	q10, q4, q4, #12
+	 veor	q1, q1, q9
+	vext.8	q11, q6, q6, #12
+	 veor	q4, q4, q10
+	vext.8	q12, q3, q3, #12
+	 veor	q6, q6, q11
+	vext.8	q13, q7, q7, #12
+	 veor	q3, q3, q12
+	vext.8	q14, q2, q2, #12
+	 veor	q7, q7, q13
+	vext.8	q15, q5, q5, #12
+	 veor	q2, q2, q14
+
+	veor	q9, q9, q0
+	 veor	q5, q5, q15
+	 vext.8	q0, q0, q0, #8		@ (x0 ^ (x0 <<< 32)) <<< 64)
+	veor	q10, q10, q1
+	veor	q8, q8, q5
+	veor	q9, q9, q5
+	 vext.8	q1, q1, q1, #8
+	veor	q13, q13, q3
+	 veor	q0, q0, q8
+	veor	q14, q14, q7
+	 veor	q1, q1, q9
+	 vext.8	q8, q3, q3, #8
+	veor	q12, q12, q6
+	 vext.8	q9, q7, q7, #8
+	veor	q15, q15, q2
+	 vext.8	q3, q6, q6, #8
+	veor	q11, q11, q4
+	 vext.8	q7, q5, q5, #8
+	veor	q12, q12, q5
+	 vext.8	q6, q2, q2, #8
+	veor	q11, q11, q5
+	 vext.8	q2, q4, q4, #8
+	veor	q5, q9, q13
+	veor	q4, q8, q12
+	veor	q3, q3, q11
+	veor	q7, q7, q15
+	veor	q6, q6, q14
+	 @ vmov	q4, q8
+	veor	q2, q2, q10
+	 @ vmov	q5, q9
+	vldmia	r6, {q12}		@ .LSR
+	ite	eq				@ Thumb2 thing, samity check in ARM
+	addeq	r6,r6,#0x10
+	bne	.Lenc_loop
+	vldmia	r6, {q12}		@ .LSRM0
+	b	.Lenc_loop
+.align	4
+.Lenc_done:
+	vmov.i8	q8,#0x55			@ compose .LBS0
+	vmov.i8	q9,#0x33			@ compose .LBS1
+	vshr.u64	q10, q2, #1
+	 vshr.u64	q11, q3, #1
+	veor		q10, q10, q5
+	 veor		q11, q11, q7
+	vand		q10, q10, q8
+	 vand		q11, q11, q8
+	veor		q5, q5, q10
+	vshl.u64	q10, q10, #1
+	 veor		q7, q7, q11
+	 vshl.u64	q11, q11, #1
+	veor		q2, q2, q10
+	 veor		q3, q3, q11
+	vshr.u64	q10, q4, #1
+	 vshr.u64	q11, q0, #1
+	veor		q10, q10, q6
+	 veor		q11, q11, q1
+	vand		q10, q10, q8
+	 vand		q11, q11, q8
+	veor		q6, q6, q10
+	vshl.u64	q10, q10, #1
+	 veor		q1, q1, q11
+	 vshl.u64	q11, q11, #1
+	veor		q4, q4, q10
+	 veor		q0, q0, q11
+	vmov.i8	q8,#0x0f			@ compose .LBS2
+	vshr.u64	q10, q7, #2
+	 vshr.u64	q11, q3, #2
+	veor		q10, q10, q5
+	 veor		q11, q11, q2
+	vand		q10, q10, q9
+	 vand		q11, q11, q9
+	veor		q5, q5, q10
+	vshl.u64	q10, q10, #2
+	 veor		q2, q2, q11
+	 vshl.u64	q11, q11, #2
+	veor		q7, q7, q10
+	 veor		q3, q3, q11
+	vshr.u64	q10, q1, #2
+	 vshr.u64	q11, q0, #2
+	veor		q10, q10, q6
+	 veor		q11, q11, q4
+	vand		q10, q10, q9
+	 vand		q11, q11, q9
+	veor		q6, q6, q10
+	vshl.u64	q10, q10, #2
+	 veor		q4, q4, q11
+	 vshl.u64	q11, q11, #2
+	veor		q1, q1, q10
+	 veor		q0, q0, q11
+	vshr.u64	q10, q6, #4
+	 vshr.u64	q11, q4, #4
+	veor		q10, q10, q5
+	 veor		q11, q11, q2
+	vand		q10, q10, q8
+	 vand		q11, q11, q8
+	veor		q5, q5, q10
+	vshl.u64	q10, q10, #4
+	 veor		q2, q2, q11
+	 vshl.u64	q11, q11, #4
+	veor		q6, q6, q10
+	 veor		q4, q4, q11
+	vshr.u64	q10, q1, #4
+	 vshr.u64	q11, q0, #4
+	veor		q10, q10, q7
+	 veor		q11, q11, q3
+	vand		q10, q10, q8
+	 vand		q11, q11, q8
+	veor		q7, q7, q10
+	vshl.u64	q10, q10, #4
+	 veor		q3, q3, q11
+	 vshl.u64	q11, q11, #4
+	veor		q1, q1, q10
+	 veor		q0, q0, q11
+	vldmia	r4, {q8}			@ last round key
+	veor	q4, q4, q8
+	veor	q6, q6, q8
+	veor	q3, q3, q8
+	veor	q7, q7, q8
+	veor	q2, q2, q8
+	veor	q5, q5, q8
+	veor	q0, q0, q8
+	veor	q1, q1, q8
+	bx	lr
+.size	_bsaes_encrypt8,.-_bsaes_encrypt8
+.type	_bsaes_key_convert,%function
+.align	4
+_bsaes_key_convert:
+	adr	r6,_bsaes_key_convert
+	vld1.8	{q7},  [r4]!		@ load round 0 key
+	sub	r6,r6,#_bsaes_key_convert-.LM0
+	vld1.8	{q15}, [r4]!		@ load round 1 key
+
+	vmov.i8	q8,  #0x01			@ bit masks
+	vmov.i8	q9,  #0x02
+	vmov.i8	q10, #0x04
+	vmov.i8	q11, #0x08
+	vmov.i8	q12, #0x10
+	vmov.i8	q13, #0x20
+	vldmia	r6, {q14}		@ .LM0
+
+#ifdef __ARMEL__
+	vrev32.8	q7,  q7
+	vrev32.8	q15, q15
+#endif
+	sub	r5,r5,#1
+	vstmia	r12!, {q7}		@ save round 0 key
+	b	.Lkey_loop
+
+.align	4
+.Lkey_loop:
+	vtbl.8	d14,{q15},d28
+	vtbl.8	d15,{q15},d29
+	vmov.i8	q6,  #0x40
+	vmov.i8	q15, #0x80
+
+	vtst.8	q0, q7, q8
+	vtst.8	q1, q7, q9
+	vtst.8	q2, q7, q10
+	vtst.8	q3, q7, q11
+	vtst.8	q4, q7, q12
+	vtst.8	q5, q7, q13
+	vtst.8	q6, q7, q6
+	vtst.8	q7, q7, q15
+	vld1.8	{q15}, [r4]!		@ load next round key
+	vmvn	q0, q0		@ "pnot"
+	vmvn	q1, q1
+	vmvn	q5, q5
+	vmvn	q6, q6
+#ifdef __ARMEL__
+	vrev32.8	q15, q15
+#endif
+	subs	r5,r5,#1
+	vstmia	r12!,{q0-q7}		@ write bit-sliced round key
+	bne	.Lkey_loop
+
+	vmov.i8	q7,#0x63			@ compose .L63
+	@ don't save last round key
+	bx	lr
+.size	_bsaes_key_convert,.-_bsaes_key_convert
+.extern AES_cbc_encrypt
+.extern AES_decrypt
+
+.global	bsaes_cbc_encrypt
+.type	bsaes_cbc_encrypt,%function
+.align	5
+bsaes_cbc_encrypt:
+#ifndef	__KERNEL__
+	cmp	r2, #128
+#ifndef	__thumb__
+	blo	AES_cbc_encrypt
+#else
+	bhs	1f
+	b	AES_cbc_encrypt
+1:
+#endif
+#endif
+
+	@ it is up to the caller to make sure we are called with enc == 0
+
+	mov	ip, sp
+	stmdb	sp!, {r4-r10, lr}
+	VFP_ABI_PUSH
+	ldr	r8, [ip]			@ IV is 1st arg on the stack
+	mov	r2, r2, lsr#4		@ len in 16 byte blocks
+	sub	sp, #0x10			@ scratch space to carry over the IV
+	mov	r9, sp				@ save sp
+
+	ldr	r10, [r3, #240]		@ get # of rounds
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	@ allocate the key schedule on the stack
+	sub	r12, sp, r10, lsl#7		@ 128 bytes per inner round key
+	add	r12, #96			@ sifze of bit-slices key schedule
+
+	@ populate the key schedule
+	mov	r4, r3			@ pass key
+	mov	r5, r10			@ pass # of rounds
+	mov	sp, r12				@ sp is sp
+	bl	_bsaes_key_convert
+	vldmia	sp, {q6}
+	vstmia	r12,  {q15}		@ save last round key
+	veor	q7, q7, q6	@ fix up round 0 key
+	vstmia	sp, {q7}
+#else
+	ldr	r12, [r3, #244]
+	eors	r12, #1
+	beq	0f
+
+	@ populate the key schedule
+	str	r12, [r3, #244]
+	mov	r4, r3			@ pass key
+	mov	r5, r10			@ pass # of rounds
+	add	r12, r3, #248			@ pass key schedule
+	bl	_bsaes_key_convert
+	add	r4, r3, #248
+	vldmia	r4, {q6}
+	vstmia	r12, {q15}			@ save last round key
+	veor	q7, q7, q6	@ fix up round 0 key
+	vstmia	r4, {q7}
+
+.align	2
+0:
+#endif
+
+	vld1.8	{q15}, [r8]		@ load IV
+	b	.Lcbc_dec_loop
+
+.align	4
+.Lcbc_dec_loop:
+	subs	r2, r2, #0x8
+	bmi	.Lcbc_dec_loop_finish
+
+	vld1.8	{q0-q1}, [r0]!	@ load input
+	vld1.8	{q2-q3}, [r0]!
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	mov	r4, sp			@ pass the key
+#else
+	add	r4, r3, #248
+#endif
+	vld1.8	{q4-q5}, [r0]!
+	mov	r5, r10
+	vld1.8	{q6-q7}, [r0]
+	sub	r0, r0, #0x60
+	vstmia	r9, {q15}			@ put aside IV
+
+	bl	_bsaes_decrypt8
+
+	vldmia	r9, {q14}			@ reload IV
+	vld1.8	{q8-q9}, [r0]!	@ reload input
+	veor	q0, q0, q14	@ ^= IV
+	vld1.8	{q10-q11}, [r0]!
+	veor	q1, q1, q8
+	veor	q6, q6, q9
+	vld1.8	{q12-q13}, [r0]!
+	veor	q4, q4, q10
+	veor	q2, q2, q11
+	vld1.8	{q14-q15}, [r0]!
+	veor	q7, q7, q12
+	vst1.8	{q0-q1}, [r1]!	@ write output
+	veor	q3, q3, q13
+	vst1.8	{q6}, [r1]!
+	veor	q5, q5, q14
+	vst1.8	{q4}, [r1]!
+	vst1.8	{q2}, [r1]!
+	vst1.8	{q7}, [r1]!
+	vst1.8	{q3}, [r1]!
+	vst1.8	{q5}, [r1]!
+
+	b	.Lcbc_dec_loop
+
+.Lcbc_dec_loop_finish:
+	adds	r2, r2, #8
+	beq	.Lcbc_dec_done
+
+	vld1.8	{q0}, [r0]!		@ load input
+	cmp	r2, #2
+	blo	.Lcbc_dec_one
+	vld1.8	{q1}, [r0]!
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	mov	r4, sp			@ pass the key
+#else
+	add	r4, r3, #248
+#endif
+	mov	r5, r10
+	vstmia	r9, {q15}			@ put aside IV
+	beq	.Lcbc_dec_two
+	vld1.8	{q2}, [r0]!
+	cmp	r2, #4
+	blo	.Lcbc_dec_three
+	vld1.8	{q3}, [r0]!
+	beq	.Lcbc_dec_four
+	vld1.8	{q4}, [r0]!
+	cmp	r2, #6
+	blo	.Lcbc_dec_five
+	vld1.8	{q5}, [r0]!
+	beq	.Lcbc_dec_six
+	vld1.8	{q6}, [r0]!
+	sub	r0, r0, #0x70
+
+	bl	_bsaes_decrypt8
+
+	vldmia	r9, {q14}			@ reload IV
+	vld1.8	{q8-q9}, [r0]!	@ reload input
+	veor	q0, q0, q14	@ ^= IV
+	vld1.8	{q10-q11}, [r0]!
+	veor	q1, q1, q8
+	veor	q6, q6, q9
+	vld1.8	{q12-q13}, [r0]!
+	veor	q4, q4, q10
+	veor	q2, q2, q11
+	vld1.8	{q15}, [r0]!
+	veor	q7, q7, q12
+	vst1.8	{q0-q1}, [r1]!	@ write output
+	veor	q3, q3, q13
+	vst1.8	{q6}, [r1]!
+	vst1.8	{q4}, [r1]!
+	vst1.8	{q2}, [r1]!
+	vst1.8	{q7}, [r1]!
+	vst1.8	{q3}, [r1]!
+	b	.Lcbc_dec_done
+.align	4
+.Lcbc_dec_six:
+	sub	r0, r0, #0x60
+	bl	_bsaes_decrypt8
+	vldmia	r9,{q14}			@ reload IV
+	vld1.8	{q8-q9}, [r0]!	@ reload input
+	veor	q0, q0, q14	@ ^= IV
+	vld1.8	{q10-q11}, [r0]!
+	veor	q1, q1, q8
+	veor	q6, q6, q9
+	vld1.8	{q12}, [r0]!
+	veor	q4, q4, q10
+	veor	q2, q2, q11
+	vld1.8	{q15}, [r0]!
+	veor	q7, q7, q12
+	vst1.8	{q0-q1}, [r1]!	@ write output
+	vst1.8	{q6}, [r1]!
+	vst1.8	{q4}, [r1]!
+	vst1.8	{q2}, [r1]!
+	vst1.8	{q7}, [r1]!
+	b	.Lcbc_dec_done
+.align	4
+.Lcbc_dec_five:
+	sub	r0, r0, #0x50
+	bl	_bsaes_decrypt8
+	vldmia	r9, {q14}			@ reload IV
+	vld1.8	{q8-q9}, [r0]!	@ reload input
+	veor	q0, q0, q14	@ ^= IV
+	vld1.8	{q10-q11}, [r0]!
+	veor	q1, q1, q8
+	veor	q6, q6, q9
+	vld1.8	{q15}, [r0]!
+	veor	q4, q4, q10
+	vst1.8	{q0-q1}, [r1]!	@ write output
+	veor	q2, q2, q11
+	vst1.8	{q6}, [r1]!
+	vst1.8	{q4}, [r1]!
+	vst1.8	{q2}, [r1]!
+	b	.Lcbc_dec_done
+.align	4
+.Lcbc_dec_four:
+	sub	r0, r0, #0x40
+	bl	_bsaes_decrypt8
+	vldmia	r9, {q14}			@ reload IV
+	vld1.8	{q8-q9}, [r0]!	@ reload input
+	veor	q0, q0, q14	@ ^= IV
+	vld1.8	{q10}, [r0]!
+	veor	q1, q1, q8
+	veor	q6, q6, q9
+	vld1.8	{q15}, [r0]!
+	veor	q4, q4, q10
+	vst1.8	{q0-q1}, [r1]!	@ write output
+	vst1.8	{q6}, [r1]!
+	vst1.8	{q4}, [r1]!
+	b	.Lcbc_dec_done
+.align	4
+.Lcbc_dec_three:
+	sub	r0, r0, #0x30
+	bl	_bsaes_decrypt8
+	vldmia	r9, {q14}			@ reload IV
+	vld1.8	{q8-q9}, [r0]!	@ reload input
+	veor	q0, q0, q14	@ ^= IV
+	vld1.8	{q15}, [r0]!
+	veor	q1, q1, q8
+	veor	q6, q6, q9
+	vst1.8	{q0-q1}, [r1]!	@ write output
+	vst1.8	{q6}, [r1]!
+	b	.Lcbc_dec_done
+.align	4
+.Lcbc_dec_two:
+	sub	r0, r0, #0x20
+	bl	_bsaes_decrypt8
+	vldmia	r9, {q14}			@ reload IV
+	vld1.8	{q8}, [r0]!		@ reload input
+	veor	q0, q0, q14	@ ^= IV
+	vld1.8	{q15}, [r0]!		@ reload input
+	veor	q1, q1, q8
+	vst1.8	{q0-q1}, [r1]!	@ write output
+	b	.Lcbc_dec_done
+.align	4
+.Lcbc_dec_one:
+	sub	r0, r0, #0x10
+	mov	r10, r1			@ save original out pointer
+	mov	r1, r9			@ use the iv scratch space as out buffer
+	mov	r2, r3
+	vmov	q4,q15		@ just in case ensure that IV
+	vmov	q5,q0			@ and input are preserved
+	bl	AES_decrypt
+	vld1.8	{q0}, [r9,:64]		@ load result
+	veor	q0, q0, q4	@ ^= IV
+	vmov	q15, q5		@ q5 holds input
+	vst1.8	{q0}, [r10]		@ write output
+
+.Lcbc_dec_done:
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	vmov.i32	q0, #0
+	vmov.i32	q1, #0
+.Lcbc_dec_bzero:				@ wipe key schedule [if any]
+	vstmia		sp!, {q0-q1}
+	cmp		sp, r9
+	bne		.Lcbc_dec_bzero
+#endif
+
+	mov	sp, r9
+	add	sp, #0x10			@ add sp,r9,#0x10 is no good for thumb
+	vst1.8	{q15}, [r8]		@ return IV
+	VFP_ABI_POP
+	ldmia	sp!, {r4-r10, pc}
+.size	bsaes_cbc_encrypt,.-bsaes_cbc_encrypt
+.extern	AES_encrypt
+.global	bsaes_ctr32_encrypt_blocks
+.type	bsaes_ctr32_encrypt_blocks,%function
+.align	5
+bsaes_ctr32_encrypt_blocks:
+	cmp	r2, #8			@ use plain AES for
+	blo	.Lctr_enc_short			@ small sizes
+
+	mov	ip, sp
+	stmdb	sp!, {r4-r10, lr}
+	VFP_ABI_PUSH
+	ldr	r8, [ip]			@ ctr is 1st arg on the stack
+	sub	sp, sp, #0x10			@ scratch space to carry over the ctr
+	mov	r9, sp				@ save sp
+
+	ldr	r10, [r3, #240]		@ get # of rounds
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	@ allocate the key schedule on the stack
+	sub	r12, sp, r10, lsl#7		@ 128 bytes per inner round key
+	add	r12, #96			@ size of bit-sliced key schedule
+
+	@ populate the key schedule
+	mov	r4, r3			@ pass key
+	mov	r5, r10			@ pass # of rounds
+	mov	sp, r12				@ sp is sp
+	bl	_bsaes_key_convert
+	veor	q7,q7,q15	@ fix up last round key
+	vstmia	r12, {q7}			@ save last round key
+
+	vld1.8	{q0}, [r8]		@ load counter
+	add	r8, r6, #.LREVM0SR-.LM0	@ borrow r8
+	vldmia	sp, {q4}		@ load round0 key
+#else
+	ldr	r12, [r3, #244]
+	eors	r12, #1
+	beq	0f
+
+	@ populate the key schedule
+	str	r12, [r3, #244]
+	mov	r4, r3			@ pass key
+	mov	r5, r10			@ pass # of rounds
+	add	r12, r3, #248			@ pass key schedule
+	bl	_bsaes_key_convert
+	veor	q7,q7,q15	@ fix up last round key
+	vstmia	r12, {q7}			@ save last round key
+
+.align	2
+0:	add	r12, r3, #248
+	vld1.8	{q0}, [r8]		@ load counter
+	adrl	r8, .LREVM0SR			@ borrow r8
+	vldmia	r12, {q4}			@ load round0 key
+	sub	sp, #0x10			@ place for adjusted round0 key
+#endif
+
+	vmov.i32	q8,#1		@ compose 1<<96
+	veor		q9,q9,q9
+	vrev32.8	q0,q0
+	vext.8		q8,q9,q8,#4
+	vrev32.8	q4,q4
+	vadd.u32	q9,q8,q8	@ compose 2<<96
+	vstmia	sp, {q4}		@ save adjusted round0 key
+	b	.Lctr_enc_loop
+
+.align	4
+.Lctr_enc_loop:
+	vadd.u32	q10, q8, q9	@ compose 3<<96
+	vadd.u32	q1, q0, q8	@ +1
+	vadd.u32	q2, q0, q9	@ +2
+	vadd.u32	q3, q0, q10	@ +3
+	vadd.u32	q4, q1, q10
+	vadd.u32	q5, q2, q10
+	vadd.u32	q6, q3, q10
+	vadd.u32	q7, q4, q10
+	vadd.u32	q10, q5, q10	@ next counter
+
+	@ Borrow prologue from _bsaes_encrypt8 to use the opportunity
+	@ to flip byte order in 32-bit counter
+
+	vldmia		sp, {q9}		@ load round0 key
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x10		@ pass next round key
+#else
+	add		r4, r3, #264
+#endif
+	vldmia		r8, {q8}			@ .LREVM0SR
+	mov		r5, r10			@ pass rounds
+	vstmia		r9, {q10}			@ save next counter
+	sub		r6, r8, #.LREVM0SR-.LSR	@ pass constants
+
+	bl		_bsaes_encrypt8_alt
+
+	subs		r2, r2, #8
+	blo		.Lctr_enc_loop_done
+
+	vld1.8		{q8-q9}, [r0]!	@ load input
+	vld1.8		{q10-q11}, [r0]!
+	veor		q0, q8
+	veor		q1, q9
+	vld1.8		{q12-q13}, [r0]!
+	veor		q4, q10
+	veor		q6, q11
+	vld1.8		{q14-q15}, [r0]!
+	veor		q3, q12
+	vst1.8		{q0-q1}, [r1]!	@ write output
+	veor		q7, q13
+	veor		q2, q14
+	vst1.8		{q4}, [r1]!
+	veor		q5, q15
+	vst1.8		{q6}, [r1]!
+	vmov.i32	q8, #1			@ compose 1<<96
+	vst1.8		{q3}, [r1]!
+	veor		q9, q9, q9
+	vst1.8		{q7}, [r1]!
+	vext.8		q8, q9, q8, #4
+	vst1.8		{q2}, [r1]!
+	vadd.u32	q9,q8,q8		@ compose 2<<96
+	vst1.8		{q5}, [r1]!
+	vldmia		r9, {q0}			@ load counter
+
+	bne		.Lctr_enc_loop
+	b		.Lctr_enc_done
+
+.align	4
+.Lctr_enc_loop_done:
+	add		r2, r2, #8
+	vld1.8		{q8}, [r0]!	@ load input
+	veor		q0, q8
+	vst1.8		{q0}, [r1]!	@ write output
+	cmp		r2, #2
+	blo		.Lctr_enc_done
+	vld1.8		{q9}, [r0]!
+	veor		q1, q9
+	vst1.8		{q1}, [r1]!
+	beq		.Lctr_enc_done
+	vld1.8		{q10}, [r0]!
+	veor		q4, q10
+	vst1.8		{q4}, [r1]!
+	cmp		r2, #4
+	blo		.Lctr_enc_done
+	vld1.8		{q11}, [r0]!
+	veor		q6, q11
+	vst1.8		{q6}, [r1]!
+	beq		.Lctr_enc_done
+	vld1.8		{q12}, [r0]!
+	veor		q3, q12
+	vst1.8		{q3}, [r1]!
+	cmp		r2, #6
+	blo		.Lctr_enc_done
+	vld1.8		{q13}, [r0]!
+	veor		q7, q13
+	vst1.8		{q7}, [r1]!
+	beq		.Lctr_enc_done
+	vld1.8		{q14}, [r0]
+	veor		q2, q14
+	vst1.8		{q2}, [r1]!
+
+.Lctr_enc_done:
+	vmov.i32	q0, #0
+	vmov.i32	q1, #0
+#ifndef	BSAES_ASM_EXTENDED_KEY
+.Lctr_enc_bzero:			@ wipe key schedule [if any]
+	vstmia		sp!, {q0-q1}
+	cmp		sp, r9
+	bne		.Lctr_enc_bzero
+#else
+	vstmia		sp, {q0-q1}
+#endif
+
+	mov	sp, r9
+	add	sp, #0x10		@ add sp,r9,#0x10 is no good for thumb
+	VFP_ABI_POP
+	ldmia	sp!, {r4-r10, pc}	@ return
+
+.align	4
+.Lctr_enc_short:
+	ldr	ip, [sp]		@ ctr pointer is passed on stack
+	stmdb	sp!, {r4-r8, lr}
+
+	mov	r4, r0		@ copy arguments
+	mov	r5, r1
+	mov	r6, r2
+	mov	r7, r3
+	ldr	r8, [ip, #12]		@ load counter LSW
+	vld1.8	{q1}, [ip]		@ load whole counter value
+#ifdef __ARMEL__
+	rev	r8, r8
+#endif
+	sub	sp, sp, #0x10
+	vst1.8	{q1}, [sp,:64]	@ copy counter value
+	sub	sp, sp, #0x10
+
+.Lctr_enc_short_loop:
+	add	r0, sp, #0x10		@ input counter value
+	mov	r1, sp			@ output on the stack
+	mov	r2, r7			@ key
+
+	bl	AES_encrypt
+
+	vld1.8	{q0}, [r4]!	@ load input
+	vld1.8	{q1}, [sp,:64]	@ load encrypted counter
+	add	r8, r8, #1
+#ifdef __ARMEL__
+	rev	r0, r8
+	str	r0, [sp, #0x1c]		@ next counter value
+#else
+	str	r8, [sp, #0x1c]		@ next counter value
+#endif
+	veor	q0,q0,q1
+	vst1.8	{q0}, [r5]!	@ store output
+	subs	r6, r6, #1
+	bne	.Lctr_enc_short_loop
+
+	vmov.i32	q0, #0
+	vmov.i32	q1, #0
+	vstmia		sp!, {q0-q1}
+
+	ldmia	sp!, {r4-r8, pc}
+.size	bsaes_ctr32_encrypt_blocks,.-bsaes_ctr32_encrypt_blocks
+.globl	bsaes_xts_encrypt
+.type	bsaes_xts_encrypt,%function
+.align	4
+bsaes_xts_encrypt:
+	mov	ip, sp
+	stmdb	sp!, {r4-r10, lr}		@ 0x20
+	VFP_ABI_PUSH
+	mov	r6, sp				@ future r3
+
+	mov	r7, r0
+	mov	r8, r1
+	mov	r9, r2
+	mov	r10, r3
+
+	sub	r0, sp, #0x10			@ 0x10
+	bic	r0, #0xf			@ align at 16 bytes
+	mov	sp, r0
+
+#ifdef	XTS_CHAIN_TWEAK
+	ldr	r0, [ip]			@ pointer to input tweak
+#else
+	@ generate initial tweak
+	ldr	r0, [ip, #4]			@ iv[]
+	mov	r1, sp
+	ldr	r2, [ip, #0]			@ key2
+	bl	AES_encrypt
+	mov	r0,sp				@ pointer to initial tweak
+#endif
+
+	ldr	r1, [r10, #240]		@ get # of rounds
+	mov	r3, r6
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	@ allocate the key schedule on the stack
+	sub	r12, sp, r1, lsl#7		@ 128 bytes per inner round key
+	@ add	r12, #96			@ size of bit-sliced key schedule
+	sub	r12, #48			@ place for tweak[9]
+
+	@ populate the key schedule
+	mov	r4, r10			@ pass key
+	mov	r5, r1			@ pass # of rounds
+	mov	sp, r12
+	add	r12, #0x90			@ pass key schedule
+	bl	_bsaes_key_convert
+	veor	q7, q7, q15	@ fix up last round key
+	vstmia	r12, {q7}			@ save last round key
+#else
+	ldr	r12, [r10, #244]
+	eors	r12, #1
+	beq	0f
+
+	str	r12, [r10, #244]
+	mov	r4, r10			@ pass key
+	mov	r5, r1			@ pass # of rounds
+	add	r12, r10, #248			@ pass key schedule
+	bl	_bsaes_key_convert
+	veor	q7, q7, q15	@ fix up last round key
+	vstmia	r12, {q7}
+
+.align	2
+0:	sub	sp, #0x90			@ place for tweak[9]
+#endif
+
+	vld1.8	{q8}, [r0]			@ initial tweak
+	adr	r2, .Lxts_magic
+
+	subs	r9, #0x80
+	blo	.Lxts_enc_short
+	b	.Lxts_enc_loop
+
+.align	4
+.Lxts_enc_loop:
+	vldmia		r2, {q5}	@ load XTS magic
+	vshr.s64	q6, q8, #63
+	mov		r0, sp
+	vand		q6, q6, q5
+	vadd.u64	q9, q8, q8
+	vst1.64		{q8}, [r0,:128]!
+	vswp		d13,d12
+	vshr.s64	q7, q9, #63
+	veor		q9, q9, q6
+	vand		q7, q7, q5
+	vadd.u64	q10, q9, q9
+	vst1.64		{q9}, [r0,:128]!
+	vswp		d15,d14
+	vshr.s64	q6, q10, #63
+	veor		q10, q10, q7
+	vand		q6, q6, q5
+	vld1.8		{q0}, [r7]!
+	vadd.u64	q11, q10, q10
+	vst1.64		{q10}, [r0,:128]!
+	vswp		d13,d12
+	vshr.s64	q7, q11, #63
+	veor		q11, q11, q6
+	vand		q7, q7, q5
+	vld1.8		{q1}, [r7]!
+	veor		q0, q0, q8
+	vadd.u64	q12, q11, q11
+	vst1.64		{q11}, [r0,:128]!
+	vswp		d15,d14
+	vshr.s64	q6, q12, #63
+	veor		q12, q12, q7
+	vand		q6, q6, q5
+	vld1.8		{q2}, [r7]!
+	veor		q1, q1, q9
+	vadd.u64	q13, q12, q12
+	vst1.64		{q12}, [r0,:128]!
+	vswp		d13,d12
+	vshr.s64	q7, q13, #63
+	veor		q13, q13, q6
+	vand		q7, q7, q5
+	vld1.8		{q3}, [r7]!
+	veor		q2, q2, q10
+	vadd.u64	q14, q13, q13
+	vst1.64		{q13}, [r0,:128]!
+	vswp		d15,d14
+	vshr.s64	q6, q14, #63
+	veor		q14, q14, q7
+	vand		q6, q6, q5
+	vld1.8		{q4}, [r7]!
+	veor		q3, q3, q11
+	vadd.u64	q15, q14, q14
+	vst1.64		{q14}, [r0,:128]!
+	vswp		d13,d12
+	vshr.s64	q7, q15, #63
+	veor		q15, q15, q6
+	vand		q7, q7, q5
+	vld1.8		{q5}, [r7]!
+	veor		q4, q4, q12
+	vadd.u64	q8, q15, q15
+	vst1.64		{q15}, [r0,:128]!
+	vswp		d15,d14
+	veor		q8, q8, q7
+	vst1.64		{q8}, [r0,:128]		@ next round tweak
+
+	vld1.8		{q6-q7}, [r7]!
+	veor		q5, q5, q13
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, r10, #248			@ pass key schedule
+#endif
+	veor		q6, q6, q14
+	mov		r5, r1			@ pass rounds
+	veor		q7, q7, q15
+	mov		r0, sp
+
+	bl		_bsaes_encrypt8
+
+	vld1.64		{q8-q9}, [r0,:128]!
+	vld1.64		{q10-q11}, [r0,:128]!
+	veor		q0, q0, q8
+	vld1.64		{q12-q13}, [r0,:128]!
+	veor		q1, q1, q9
+	veor		q8, q4, q10
+	vst1.8		{q0-q1}, [r8]!
+	veor		q9, q6, q11
+	vld1.64		{q14-q15}, [r0,:128]!
+	veor		q10, q3, q12
+	vst1.8		{q8-q9}, [r8]!
+	veor		q11, q7, q13
+	veor		q12, q2, q14
+	vst1.8		{q10-q11}, [r8]!
+	veor		q13, q5, q15
+	vst1.8		{q12-q13}, [r8]!
+
+	vld1.64		{q8}, [r0,:128]		@ next round tweak
+
+	subs		r9, #0x80
+	bpl		.Lxts_enc_loop
+
+.Lxts_enc_short:
+	adds		r9, #0x70
+	bmi		.Lxts_enc_done
+
+	vldmia		r2, {q5}	@ load XTS magic
+	vshr.s64	q7, q8, #63
+	mov		r0, sp
+	vand		q7, q7, q5
+	vadd.u64	q9, q8, q8
+	vst1.64		{q8}, [r0,:128]!
+	vswp		d15,d14
+	vshr.s64	q6, q9, #63
+	veor		q9, q9, q7
+	vand		q6, q6, q5
+	vadd.u64	q10, q9, q9
+	vst1.64		{q9}, [r0,:128]!
+	vswp		d13,d12
+	vshr.s64	q7, q10, #63
+	veor		q10, q10, q6
+	vand		q7, q7, q5
+	vld1.8		{q0}, [r7]!
+	subs		r9, #0x10
+	bmi		.Lxts_enc_1
+	vadd.u64	q11, q10, q10
+	vst1.64		{q10}, [r0,:128]!
+	vswp		d15,d14
+	vshr.s64	q6, q11, #63
+	veor		q11, q11, q7
+	vand		q6, q6, q5
+	vld1.8		{q1}, [r7]!
+	subs		r9, #0x10
+	bmi		.Lxts_enc_2
+	veor		q0, q0, q8
+	vadd.u64	q12, q11, q11
+	vst1.64		{q11}, [r0,:128]!
+	vswp		d13,d12
+	vshr.s64	q7, q12, #63
+	veor		q12, q12, q6
+	vand		q7, q7, q5
+	vld1.8		{q2}, [r7]!
+	subs		r9, #0x10
+	bmi		.Lxts_enc_3
+	veor		q1, q1, q9
+	vadd.u64	q13, q12, q12
+	vst1.64		{q12}, [r0,:128]!
+	vswp		d15,d14
+	vshr.s64	q6, q13, #63
+	veor		q13, q13, q7
+	vand		q6, q6, q5
+	vld1.8		{q3}, [r7]!
+	subs		r9, #0x10
+	bmi		.Lxts_enc_4
+	veor		q2, q2, q10
+	vadd.u64	q14, q13, q13
+	vst1.64		{q13}, [r0,:128]!
+	vswp		d13,d12
+	vshr.s64	q7, q14, #63
+	veor		q14, q14, q6
+	vand		q7, q7, q5
+	vld1.8		{q4}, [r7]!
+	subs		r9, #0x10
+	bmi		.Lxts_enc_5
+	veor		q3, q3, q11
+	vadd.u64	q15, q14, q14
+	vst1.64		{q14}, [r0,:128]!
+	vswp		d15,d14
+	vshr.s64	q6, q15, #63
+	veor		q15, q15, q7
+	vand		q6, q6, q5
+	vld1.8		{q5}, [r7]!
+	subs		r9, #0x10
+	bmi		.Lxts_enc_6
+	veor		q4, q4, q12
+	sub		r9, #0x10
+	vst1.64		{q15}, [r0,:128]		@ next round tweak
+
+	vld1.8		{q6}, [r7]!
+	veor		q5, q5, q13
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, r10, #248			@ pass key schedule
+#endif
+	veor		q6, q6, q14
+	mov		r5, r1			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_encrypt8
+
+	vld1.64		{q8-q9}, [r0,:128]!
+	vld1.64		{q10-q11}, [r0,:128]!
+	veor		q0, q0, q8
+	vld1.64		{q12-q13}, [r0,:128]!
+	veor		q1, q1, q9
+	veor		q8, q4, q10
+	vst1.8		{q0-q1}, [r8]!
+	veor		q9, q6, q11
+	vld1.64		{q14}, [r0,:128]!
+	veor		q10, q3, q12
+	vst1.8		{q8-q9}, [r8]!
+	veor		q11, q7, q13
+	veor		q12, q2, q14
+	vst1.8		{q10-q11}, [r8]!
+	vst1.8		{q12}, [r8]!
+
+	vld1.64		{q8}, [r0,:128]		@ next round tweak
+	b		.Lxts_enc_done
+.align	4
+.Lxts_enc_6:
+	vst1.64		{q14}, [r0,:128]		@ next round tweak
+
+	veor		q4, q4, q12
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, r10, #248			@ pass key schedule
+#endif
+	veor		q5, q5, q13
+	mov		r5, r1			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_encrypt8
+
+	vld1.64		{q8-q9}, [r0,:128]!
+	vld1.64		{q10-q11}, [r0,:128]!
+	veor		q0, q0, q8
+	vld1.64		{q12-q13}, [r0,:128]!
+	veor		q1, q1, q9
+	veor		q8, q4, q10
+	vst1.8		{q0-q1}, [r8]!
+	veor		q9, q6, q11
+	veor		q10, q3, q12
+	vst1.8		{q8-q9}, [r8]!
+	veor		q11, q7, q13
+	vst1.8		{q10-q11}, [r8]!
+
+	vld1.64		{q8}, [r0,:128]		@ next round tweak
+	b		.Lxts_enc_done
+
+@ put this in range for both ARM and Thumb mode adr instructions
+.align	5
+.Lxts_magic:
+	.quad	1, 0x87
+
+.align	5
+.Lxts_enc_5:
+	vst1.64		{q13}, [r0,:128]		@ next round tweak
+
+	veor		q3, q3, q11
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, r10, #248			@ pass key schedule
+#endif
+	veor		q4, q4, q12
+	mov		r5, r1			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_encrypt8
+
+	vld1.64		{q8-q9}, [r0,:128]!
+	vld1.64		{q10-q11}, [r0,:128]!
+	veor		q0, q0, q8
+	vld1.64		{q12}, [r0,:128]!
+	veor		q1, q1, q9
+	veor		q8, q4, q10
+	vst1.8		{q0-q1}, [r8]!
+	veor		q9, q6, q11
+	veor		q10, q3, q12
+	vst1.8		{q8-q9}, [r8]!
+	vst1.8		{q10}, [r8]!
+
+	vld1.64		{q8}, [r0,:128]		@ next round tweak
+	b		.Lxts_enc_done
+.align	4
+.Lxts_enc_4:
+	vst1.64		{q12}, [r0,:128]		@ next round tweak
+
+	veor		q2, q2, q10
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, r10, #248			@ pass key schedule
+#endif
+	veor		q3, q3, q11
+	mov		r5, r1			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_encrypt8
+
+	vld1.64		{q8-q9}, [r0,:128]!
+	vld1.64		{q10-q11}, [r0,:128]!
+	veor		q0, q0, q8
+	veor		q1, q1, q9
+	veor		q8, q4, q10
+	vst1.8		{q0-q1}, [r8]!
+	veor		q9, q6, q11
+	vst1.8		{q8-q9}, [r8]!
+
+	vld1.64		{q8}, [r0,:128]		@ next round tweak
+	b		.Lxts_enc_done
+.align	4
+.Lxts_enc_3:
+	vst1.64		{q11}, [r0,:128]		@ next round tweak
+
+	veor		q1, q1, q9
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, r10, #248			@ pass key schedule
+#endif
+	veor		q2, q2, q10
+	mov		r5, r1			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_encrypt8
+
+	vld1.64		{q8-q9}, [r0,:128]!
+	vld1.64		{q10}, [r0,:128]!
+	veor		q0, q0, q8
+	veor		q1, q1, q9
+	veor		q8, q4, q10
+	vst1.8		{q0-q1}, [r8]!
+	vst1.8		{q8}, [r8]!
+
+	vld1.64		{q8}, [r0,:128]		@ next round tweak
+	b		.Lxts_enc_done
+.align	4
+.Lxts_enc_2:
+	vst1.64		{q10}, [r0,:128]		@ next round tweak
+
+	veor		q0, q0, q8
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, r10, #248			@ pass key schedule
+#endif
+	veor		q1, q1, q9
+	mov		r5, r1			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_encrypt8
+
+	vld1.64		{q8-q9}, [r0,:128]!
+	veor		q0, q0, q8
+	veor		q1, q1, q9
+	vst1.8		{q0-q1}, [r8]!
+
+	vld1.64		{q8}, [r0,:128]		@ next round tweak
+	b		.Lxts_enc_done
+.align	4
+.Lxts_enc_1:
+	mov		r0, sp
+	veor		q0, q8
+	mov		r1, sp
+	vst1.8		{q0}, [sp,:128]
+	mov		r2, r10
+	mov		r4, r3				@ preserve fp
+
+	bl		AES_encrypt
+
+	vld1.8		{q0}, [sp,:128]
+	veor		q0, q0, q8
+	vst1.8		{q0}, [r8]!
+	mov		r3, r4
+
+	vmov		q8, q9		@ next round tweak
+
+.Lxts_enc_done:
+#ifndef	XTS_CHAIN_TWEAK
+	adds		r9, #0x10
+	beq		.Lxts_enc_ret
+	sub		r6, r8, #0x10
+
+.Lxts_enc_steal:
+	ldrb		r0, [r7], #1
+	ldrb		r1, [r8, #-0x10]
+	strb		r0, [r8, #-0x10]
+	strb		r1, [r8], #1
+
+	subs		r9, #1
+	bhi		.Lxts_enc_steal
+
+	vld1.8		{q0}, [r6]
+	mov		r0, sp
+	veor		q0, q0, q8
+	mov		r1, sp
+	vst1.8		{q0}, [sp,:128]
+	mov		r2, r10
+	mov		r4, r3			@ preserve fp
+
+	bl		AES_encrypt
+
+	vld1.8		{q0}, [sp,:128]
+	veor		q0, q0, q8
+	vst1.8		{q0}, [r6]
+	mov		r3, r4
+#endif
+
+.Lxts_enc_ret:
+	bic		r0, r3, #0xf
+	vmov.i32	q0, #0
+	vmov.i32	q1, #0
+#ifdef	XTS_CHAIN_TWEAK
+	ldr		r1, [r3, #0x20+VFP_ABI_FRAME]	@ chain tweak
+#endif
+.Lxts_enc_bzero:				@ wipe key schedule [if any]
+	vstmia		sp!, {q0-q1}
+	cmp		sp, r0
+	bne		.Lxts_enc_bzero
+
+	mov		sp, r3
+#ifdef	XTS_CHAIN_TWEAK
+	vst1.8		{q8}, [r1]
+#endif
+	VFP_ABI_POP
+	ldmia		sp!, {r4-r10, pc}	@ return
+
+.size	bsaes_xts_encrypt,.-bsaes_xts_encrypt
+
+.globl	bsaes_xts_decrypt
+.type	bsaes_xts_decrypt,%function
+.align	4
+bsaes_xts_decrypt:
+	mov	ip, sp
+	stmdb	sp!, {r4-r10, lr}		@ 0x20
+	VFP_ABI_PUSH
+	mov	r6, sp				@ future r3
+
+	mov	r7, r0
+	mov	r8, r1
+	mov	r9, r2
+	mov	r10, r3
+
+	sub	r0, sp, #0x10			@ 0x10
+	bic	r0, #0xf			@ align at 16 bytes
+	mov	sp, r0
+
+#ifdef	XTS_CHAIN_TWEAK
+	ldr	r0, [ip]			@ pointer to input tweak
+#else
+	@ generate initial tweak
+	ldr	r0, [ip, #4]			@ iv[]
+	mov	r1, sp
+	ldr	r2, [ip, #0]			@ key2
+	bl	AES_encrypt
+	mov	r0, sp				@ pointer to initial tweak
+#endif
+
+	ldr	r1, [r10, #240]		@ get # of rounds
+	mov	r3, r6
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	@ allocate the key schedule on the stack
+	sub	r12, sp, r1, lsl#7		@ 128 bytes per inner round key
+	@ add	r12, #96			@ size of bit-sliced key schedule
+	sub	r12, #48			@ place for tweak[9]
+
+	@ populate the key schedule
+	mov	r4, r10			@ pass key
+	mov	r5, r1			@ pass # of rounds
+	mov	sp, r12
+	add	r12, #0x90			@ pass key schedule
+	bl	_bsaes_key_convert
+	add	r4, sp, #0x90
+	vldmia	r4, {q6}
+	vstmia	r12,  {q15}		@ save last round key
+	veor	q7, q7, q6	@ fix up round 0 key
+	vstmia	r4, {q7}
+#else
+	ldr	r12, [r10, #244]
+	eors	r12, #1
+	beq	0f
+
+	str	r12, [r10, #244]
+	mov	r4, r10			@ pass key
+	mov	r5, r1			@ pass # of rounds
+	add	r12, r10, #248			@ pass key schedule
+	bl	_bsaes_key_convert
+	add	r4, r10, #248
+	vldmia	r4, {q6}
+	vstmia	r12,  {q15}		@ save last round key
+	veor	q7, q7, q6	@ fix up round 0 key
+	vstmia	r4, {q7}
+
+.align	2
+0:	sub	sp, #0x90			@ place for tweak[9]
+#endif
+	vld1.8	{q8}, [r0]			@ initial tweak
+	adr	r2, .Lxts_magic
+
+	tst	r9, #0xf			@ if not multiple of 16
+	it	ne				@ Thumb2 thing, sanity check in ARM
+	subne	r9, #0x10			@ subtract another 16 bytes
+	subs	r9, #0x80
+
+	blo	.Lxts_dec_short
+	b	.Lxts_dec_loop
+
+.align	4
+.Lxts_dec_loop:
+	vldmia		r2, {q5}	@ load XTS magic
+	vshr.s64	q6, q8, #63
+	mov		r0, sp
+	vand		q6, q6, q5
+	vadd.u64	q9, q8, q8
+	vst1.64		{q8}, [r0,:128]!
+	vswp		d13,d12
+	vshr.s64	q7, q9, #63
+	veor		q9, q9, q6
+	vand		q7, q7, q5
+	vadd.u64	q10, q9, q9
+	vst1.64		{q9}, [r0,:128]!
+	vswp		d15,d14
+	vshr.s64	q6, q10, #63
+	veor		q10, q10, q7
+	vand		q6, q6, q5
+	vld1.8		{q0}, [r7]!
+	vadd.u64	q11, q10, q10
+	vst1.64		{q10}, [r0,:128]!
+	vswp		d13,d12
+	vshr.s64	q7, q11, #63
+	veor		q11, q11, q6
+	vand		q7, q7, q5
+	vld1.8		{q1}, [r7]!
+	veor		q0, q0, q8
+	vadd.u64	q12, q11, q11
+	vst1.64		{q11}, [r0,:128]!
+	vswp		d15,d14
+	vshr.s64	q6, q12, #63
+	veor		q12, q12, q7
+	vand		q6, q6, q5
+	vld1.8		{q2}, [r7]!
+	veor		q1, q1, q9
+	vadd.u64	q13, q12, q12
+	vst1.64		{q12}, [r0,:128]!
+	vswp		d13,d12
+	vshr.s64	q7, q13, #63
+	veor		q13, q13, q6
+	vand		q7, q7, q5
+	vld1.8		{q3}, [r7]!
+	veor		q2, q2, q10
+	vadd.u64	q14, q13, q13
+	vst1.64		{q13}, [r0,:128]!
+	vswp		d15,d14
+	vshr.s64	q6, q14, #63
+	veor		q14, q14, q7
+	vand		q6, q6, q5
+	vld1.8		{q4}, [r7]!
+	veor		q3, q3, q11
+	vadd.u64	q15, q14, q14
+	vst1.64		{q14}, [r0,:128]!
+	vswp		d13,d12
+	vshr.s64	q7, q15, #63
+	veor		q15, q15, q6
+	vand		q7, q7, q5
+	vld1.8		{q5}, [r7]!
+	veor		q4, q4, q12
+	vadd.u64	q8, q15, q15
+	vst1.64		{q15}, [r0,:128]!
+	vswp		d15,d14
+	veor		q8, q8, q7
+	vst1.64		{q8}, [r0,:128]		@ next round tweak
+
+	vld1.8		{q6-q7}, [r7]!
+	veor		q5, q5, q13
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, r10, #248			@ pass key schedule
+#endif
+	veor		q6, q6, q14
+	mov		r5, r1			@ pass rounds
+	veor		q7, q7, q15
+	mov		r0, sp
+
+	bl		_bsaes_decrypt8
+
+	vld1.64		{q8-q9}, [r0,:128]!
+	vld1.64		{q10-q11}, [r0,:128]!
+	veor		q0, q0, q8
+	vld1.64		{q12-q13}, [r0,:128]!
+	veor		q1, q1, q9
+	veor		q8, q6, q10
+	vst1.8		{q0-q1}, [r8]!
+	veor		q9, q4, q11
+	vld1.64		{q14-q15}, [r0,:128]!
+	veor		q10, q2, q12
+	vst1.8		{q8-q9}, [r8]!
+	veor		q11, q7, q13
+	veor		q12, q3, q14
+	vst1.8		{q10-q11}, [r8]!
+	veor		q13, q5, q15
+	vst1.8		{q12-q13}, [r8]!
+
+	vld1.64		{q8}, [r0,:128]		@ next round tweak
+
+	subs		r9, #0x80
+	bpl		.Lxts_dec_loop
+
+.Lxts_dec_short:
+	adds		r9, #0x70
+	bmi		.Lxts_dec_done
+
+	vldmia		r2, {q5}	@ load XTS magic
+	vshr.s64	q7, q8, #63
+	mov		r0, sp
+	vand		q7, q7, q5
+	vadd.u64	q9, q8, q8
+	vst1.64		{q8}, [r0,:128]!
+	vswp		d15,d14
+	vshr.s64	q6, q9, #63
+	veor		q9, q9, q7
+	vand		q6, q6, q5
+	vadd.u64	q10, q9, q9
+	vst1.64		{q9}, [r0,:128]!
+	vswp		d13,d12
+	vshr.s64	q7, q10, #63
+	veor		q10, q10, q6
+	vand		q7, q7, q5
+	vld1.8		{q0}, [r7]!
+	subs		r9, #0x10
+	bmi		.Lxts_dec_1
+	vadd.u64	q11, q10, q10
+	vst1.64		{q10}, [r0,:128]!
+	vswp		d15,d14
+	vshr.s64	q6, q11, #63
+	veor		q11, q11, q7
+	vand		q6, q6, q5
+	vld1.8		{q1}, [r7]!
+	subs		r9, #0x10
+	bmi		.Lxts_dec_2
+	veor		q0, q0, q8
+	vadd.u64	q12, q11, q11
+	vst1.64		{q11}, [r0,:128]!
+	vswp		d13,d12
+	vshr.s64	q7, q12, #63
+	veor		q12, q12, q6
+	vand		q7, q7, q5
+	vld1.8		{q2}, [r7]!
+	subs		r9, #0x10
+	bmi		.Lxts_dec_3
+	veor		q1, q1, q9
+	vadd.u64	q13, q12, q12
+	vst1.64		{q12}, [r0,:128]!
+	vswp		d15,d14
+	vshr.s64	q6, q13, #63
+	veor		q13, q13, q7
+	vand		q6, q6, q5
+	vld1.8		{q3}, [r7]!
+	subs		r9, #0x10
+	bmi		.Lxts_dec_4
+	veor		q2, q2, q10
+	vadd.u64	q14, q13, q13
+	vst1.64		{q13}, [r0,:128]!
+	vswp		d13,d12
+	vshr.s64	q7, q14, #63
+	veor		q14, q14, q6
+	vand		q7, q7, q5
+	vld1.8		{q4}, [r7]!
+	subs		r9, #0x10
+	bmi		.Lxts_dec_5
+	veor		q3, q3, q11
+	vadd.u64	q15, q14, q14
+	vst1.64		{q14}, [r0,:128]!
+	vswp		d15,d14
+	vshr.s64	q6, q15, #63
+	veor		q15, q15, q7
+	vand		q6, q6, q5
+	vld1.8		{q5}, [r7]!
+	subs		r9, #0x10
+	bmi		.Lxts_dec_6
+	veor		q4, q4, q12
+	sub		r9, #0x10
+	vst1.64		{q15}, [r0,:128]		@ next round tweak
+
+	vld1.8		{q6}, [r7]!
+	veor		q5, q5, q13
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, r10, #248			@ pass key schedule
+#endif
+	veor		q6, q6, q14
+	mov		r5, r1			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_decrypt8
+
+	vld1.64		{q8-q9}, [r0,:128]!
+	vld1.64		{q10-q11}, [r0,:128]!
+	veor		q0, q0, q8
+	vld1.64		{q12-q13}, [r0,:128]!
+	veor		q1, q1, q9
+	veor		q8, q6, q10
+	vst1.8		{q0-q1}, [r8]!
+	veor		q9, q4, q11
+	vld1.64		{q14}, [r0,:128]!
+	veor		q10, q2, q12
+	vst1.8		{q8-q9}, [r8]!
+	veor		q11, q7, q13
+	veor		q12, q3, q14
+	vst1.8		{q10-q11}, [r8]!
+	vst1.8		{q12}, [r8]!
+
+	vld1.64		{q8}, [r0,:128]		@ next round tweak
+	b		.Lxts_dec_done
+.align	4
+.Lxts_dec_6:
+	vst1.64		{q14}, [r0,:128]		@ next round tweak
+
+	veor		q4, q4, q12
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, r10, #248			@ pass key schedule
+#endif
+	veor		q5, q5, q13
+	mov		r5, r1			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_decrypt8
+
+	vld1.64		{q8-q9}, [r0,:128]!
+	vld1.64		{q10-q11}, [r0,:128]!
+	veor		q0, q0, q8
+	vld1.64		{q12-q13}, [r0,:128]!
+	veor		q1, q1, q9
+	veor		q8, q6, q10
+	vst1.8		{q0-q1}, [r8]!
+	veor		q9, q4, q11
+	veor		q10, q2, q12
+	vst1.8		{q8-q9}, [r8]!
+	veor		q11, q7, q13
+	vst1.8		{q10-q11}, [r8]!
+
+	vld1.64		{q8}, [r0,:128]		@ next round tweak
+	b		.Lxts_dec_done
+.align	4
+.Lxts_dec_5:
+	vst1.64		{q13}, [r0,:128]		@ next round tweak
+
+	veor		q3, q3, q11
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, r10, #248			@ pass key schedule
+#endif
+	veor		q4, q4, q12
+	mov		r5, r1			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_decrypt8
+
+	vld1.64		{q8-q9}, [r0,:128]!
+	vld1.64		{q10-q11}, [r0,:128]!
+	veor		q0, q0, q8
+	vld1.64		{q12}, [r0,:128]!
+	veor		q1, q1, q9
+	veor		q8, q6, q10
+	vst1.8		{q0-q1}, [r8]!
+	veor		q9, q4, q11
+	veor		q10, q2, q12
+	vst1.8		{q8-q9}, [r8]!
+	vst1.8		{q10}, [r8]!
+
+	vld1.64		{q8}, [r0,:128]		@ next round tweak
+	b		.Lxts_dec_done
+.align	4
+.Lxts_dec_4:
+	vst1.64		{q12}, [r0,:128]		@ next round tweak
+
+	veor		q2, q2, q10
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, r10, #248			@ pass key schedule
+#endif
+	veor		q3, q3, q11
+	mov		r5, r1			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_decrypt8
+
+	vld1.64		{q8-q9}, [r0,:128]!
+	vld1.64		{q10-q11}, [r0,:128]!
+	veor		q0, q0, q8
+	veor		q1, q1, q9
+	veor		q8, q6, q10
+	vst1.8		{q0-q1}, [r8]!
+	veor		q9, q4, q11
+	vst1.8		{q8-q9}, [r8]!
+
+	vld1.64		{q8}, [r0,:128]		@ next round tweak
+	b		.Lxts_dec_done
+.align	4
+.Lxts_dec_3:
+	vst1.64		{q11}, [r0,:128]		@ next round tweak
+
+	veor		q1, q1, q9
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, r10, #248			@ pass key schedule
+#endif
+	veor		q2, q2, q10
+	mov		r5, r1			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_decrypt8
+
+	vld1.64		{q8-q9}, [r0,:128]!
+	vld1.64		{q10}, [r0,:128]!
+	veor		q0, q0, q8
+	veor		q1, q1, q9
+	veor		q8, q6, q10
+	vst1.8		{q0-q1}, [r8]!
+	vst1.8		{q8}, [r8]!
+
+	vld1.64		{q8}, [r0,:128]		@ next round tweak
+	b		.Lxts_dec_done
+.align	4
+.Lxts_dec_2:
+	vst1.64		{q10}, [r0,:128]		@ next round tweak
+
+	veor		q0, q0, q8
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, r10, #248			@ pass key schedule
+#endif
+	veor		q1, q1, q9
+	mov		r5, r1			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_decrypt8
+
+	vld1.64		{q8-q9}, [r0,:128]!
+	veor		q0, q0, q8
+	veor		q1, q1, q9
+	vst1.8		{q0-q1}, [r8]!
+
+	vld1.64		{q8}, [r0,:128]		@ next round tweak
+	b		.Lxts_dec_done
+.align	4
+.Lxts_dec_1:
+	mov		r0, sp
+	veor		q0, q8
+	mov		r1, sp
+	vst1.8		{q0}, [sp,:128]
+	mov		r2, r10
+	mov		r4, r3				@ preserve fp
+	mov		r5, r2			@ preserve magic
+
+	bl		AES_decrypt
+
+	vld1.8		{q0}, [sp,:128]
+	veor		q0, q0, q8
+	vst1.8		{q0}, [r8]!
+	mov		r3, r4
+	mov		r2, r5
+
+	vmov		q8, q9		@ next round tweak
+
+.Lxts_dec_done:
+#ifndef	XTS_CHAIN_TWEAK
+	adds		r9, #0x10
+	beq		.Lxts_dec_ret
+
+	@ calculate one round of extra tweak for the stolen ciphertext
+	vldmia		r2, {q5}
+	vshr.s64	q6, q8, #63
+	vand		q6, q6, q5
+	vadd.u64	q9, q8, q8
+	vswp		d13,d12
+	veor		q9, q9, q6
+
+	@ perform the final decryption with the last tweak value
+	vld1.8		{q0}, [r7]!
+	mov		r0, sp
+	veor		q0, q0, q9
+	mov		r1, sp
+	vst1.8		{q0}, [sp,:128]
+	mov		r2, r10
+	mov		r4, r3			@ preserve fp
+
+	bl		AES_decrypt
+
+	vld1.8		{q0}, [sp,:128]
+	veor		q0, q0, q9
+	vst1.8		{q0}, [r8]
+
+	mov		r6, r8
+.Lxts_dec_steal:
+	ldrb		r1, [r8]
+	ldrb		r0, [r7], #1
+	strb		r1, [r8, #0x10]
+	strb		r0, [r8], #1
+
+	subs		r9, #1
+	bhi		.Lxts_dec_steal
+
+	vld1.8		{q0}, [r6]
+	mov		r0, sp
+	veor		q0, q8
+	mov		r1, sp
+	vst1.8		{q0}, [sp,:128]
+	mov		r2, r10
+
+	bl		AES_decrypt
+
+	vld1.8		{q0}, [sp,:128]
+	veor		q0, q0, q8
+	vst1.8		{q0}, [r6]
+	mov		r3, r4
+#endif
+
+.Lxts_dec_ret:
+	bic		r0, r3, #0xf
+	vmov.i32	q0, #0
+	vmov.i32	q1, #0
+#ifdef	XTS_CHAIN_TWEAK
+	ldr		r1, [r3, #0x20+VFP_ABI_FRAME]	@ chain tweak
+#endif
+.Lxts_dec_bzero:				@ wipe key schedule [if any]
+	vstmia		sp!, {q0-q1}
+	cmp		sp, r0
+	bne		.Lxts_dec_bzero
+
+	mov		sp, r3
+#ifdef	XTS_CHAIN_TWEAK
+	vst1.8		{q8}, [r1]
+#endif
+	VFP_ABI_POP
+	ldmia		sp!, {r4-r10, pc}	@ return
+
+.size	bsaes_xts_decrypt,.-bsaes_xts_decrypt
+#endif
diff --git a/arch/arm/crypto/aesbs-glue.c b/arch/arm/crypto/aesbs-glue.c
new file mode 100644
index 000000000000..4522366da759
--- /dev/null
+++ b/arch/arm/crypto/aesbs-glue.c
@@ -0,0 +1,434 @@
+/*
+ * linux/arch/arm/crypto/aesbs-glue.c - glue code for NEON bit sliced AES
+ *
+ * Copyright (C) 2013 Linaro Ltd <ard.biesheuvel@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <asm/neon.h>
+#include <crypto/aes.h>
+#include <crypto/ablk_helper.h>
+#include <crypto/algapi.h>
+#include <linux/module.h>
+
+#include "aes_glue.h"
+
+#define BIT_SLICED_KEY_MAXSIZE	(128 * (AES_MAXNR - 1) + 2 * AES_BLOCK_SIZE)
+
+struct BS_KEY {
+	struct AES_KEY	rk;
+	int		converted;
+	u8 __aligned(8)	bs[BIT_SLICED_KEY_MAXSIZE];
+} __aligned(8);
+
+asmlinkage void bsaes_enc_key_convert(u8 out[], struct AES_KEY const *in);
+asmlinkage void bsaes_dec_key_convert(u8 out[], struct AES_KEY const *in);
+
+asmlinkage void bsaes_cbc_encrypt(u8 const in[], u8 out[], u32 bytes,
+				  struct BS_KEY *key, u8 iv[]);
+
+asmlinkage void bsaes_ctr32_encrypt_blocks(u8 const in[], u8 out[], u32 blocks,
+					   struct BS_KEY *key, u8 const iv[]);
+
+asmlinkage void bsaes_xts_encrypt(u8 const in[], u8 out[], u32 bytes,
+				  struct BS_KEY *key, u8 tweak[]);
+
+asmlinkage void bsaes_xts_decrypt(u8 const in[], u8 out[], u32 bytes,
+				  struct BS_KEY *key, u8 tweak[]);
+
+struct aesbs_cbc_ctx {
+	struct AES_KEY	enc;
+	struct BS_KEY	dec;
+};
+
+struct aesbs_ctr_ctx {
+	struct BS_KEY	enc;
+};
+
+struct aesbs_xts_ctx {
+	struct BS_KEY	enc;
+	struct BS_KEY	dec;
+	struct AES_KEY	twkey;
+};
+
+static int aesbs_cbc_set_key(struct crypto_tfm *tfm, const u8 *in_key,
+			     unsigned int key_len)
+{
+	struct aesbs_cbc_ctx *ctx = crypto_tfm_ctx(tfm);
+	int bits = key_len * 8;
+
+	if (private_AES_set_encrypt_key(in_key, bits, &ctx->enc)) {
+		tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+		return -EINVAL;
+	}
+	ctx->dec.rk = ctx->enc;
+	private_AES_set_decrypt_key(in_key, bits, &ctx->dec.rk);
+	ctx->dec.converted = 0;
+	return 0;
+}
+
+static int aesbs_ctr_set_key(struct crypto_tfm *tfm, const u8 *in_key,
+			     unsigned int key_len)
+{
+	struct aesbs_ctr_ctx *ctx = crypto_tfm_ctx(tfm);
+	int bits = key_len * 8;
+
+	if (private_AES_set_encrypt_key(in_key, bits, &ctx->enc.rk)) {
+		tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+		return -EINVAL;
+	}
+	ctx->enc.converted = 0;
+	return 0;
+}
+
+static int aesbs_xts_set_key(struct crypto_tfm *tfm, const u8 *in_key,
+			     unsigned int key_len)
+{
+	struct aesbs_xts_ctx *ctx = crypto_tfm_ctx(tfm);
+	int bits = key_len * 4;
+
+	if (private_AES_set_encrypt_key(in_key, bits, &ctx->enc.rk)) {
+		tfm->crt_flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
+		return -EINVAL;
+	}
+	ctx->dec.rk = ctx->enc.rk;
+	private_AES_set_decrypt_key(in_key, bits, &ctx->dec.rk);
+	private_AES_set_encrypt_key(in_key + key_len / 2, bits, &ctx->twkey);
+	ctx->enc.converted = ctx->dec.converted = 0;
+	return 0;
+}
+
+static int aesbs_cbc_encrypt(struct blkcipher_desc *desc,
+			     struct scatterlist *dst,
+			     struct scatterlist *src, unsigned int nbytes)
+{
+	struct aesbs_cbc_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
+	struct blkcipher_walk walk;
+	int err;
+
+	blkcipher_walk_init(&walk, dst, src, nbytes);
+	err = blkcipher_walk_virt(desc, &walk);
+
+	while (walk.nbytes) {
+		u32 blocks = walk.nbytes / AES_BLOCK_SIZE;
+		u8 *src = walk.src.virt.addr;
+
+		if (walk.dst.virt.addr == walk.src.virt.addr) {
+			u8 *iv = walk.iv;
+
+			do {
+				crypto_xor(src, iv, AES_BLOCK_SIZE);
+				AES_encrypt(src, src, &ctx->enc);
+				iv = src;
+				src += AES_BLOCK_SIZE;
+			} while (--blocks);
+			memcpy(walk.iv, iv, AES_BLOCK_SIZE);
+		} else {
+			u8 *dst = walk.dst.virt.addr;
+
+			do {
+				crypto_xor(walk.iv, src, AES_BLOCK_SIZE);
+				AES_encrypt(walk.iv, dst, &ctx->enc);
+				memcpy(walk.iv, dst, AES_BLOCK_SIZE);
+				src += AES_BLOCK_SIZE;
+				dst += AES_BLOCK_SIZE;
+			} while (--blocks);
+		}
+		err = blkcipher_walk_done(desc, &walk, 0);
+	}
+	return err;
+}
+
+static int aesbs_cbc_decrypt(struct blkcipher_desc *desc,
+			     struct scatterlist *dst,
+			     struct scatterlist *src, unsigned int nbytes)
+{
+	struct aesbs_cbc_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
+	struct blkcipher_walk walk;
+	int err;
+
+	blkcipher_walk_init(&walk, dst, src, nbytes);
+	err = blkcipher_walk_virt_block(desc, &walk, 8 * AES_BLOCK_SIZE);
+
+	while ((walk.nbytes / AES_BLOCK_SIZE) >= 8) {
+		kernel_neon_begin();
+		bsaes_cbc_encrypt(walk.src.virt.addr, walk.dst.virt.addr,
+				  walk.nbytes, &ctx->dec, walk.iv);
+		kernel_neon_end();
+		err = blkcipher_walk_done(desc, &walk, 0);
+	}
+	while (walk.nbytes) {
+		u32 blocks = walk.nbytes / AES_BLOCK_SIZE;
+		u8 *dst = walk.dst.virt.addr;
+		u8 *src = walk.src.virt.addr;
+		u8 bk[2][AES_BLOCK_SIZE];
+		u8 *iv = walk.iv;
+
+		do {
+			if (walk.dst.virt.addr == walk.src.virt.addr)
+				memcpy(bk[blocks & 1], src, AES_BLOCK_SIZE);
+
+			AES_decrypt(src, dst, &ctx->dec.rk);
+			crypto_xor(dst, iv, AES_BLOCK_SIZE);
+
+			if (walk.dst.virt.addr == walk.src.virt.addr)
+				iv = bk[blocks & 1];
+			else
+				iv = src;
+
+			dst += AES_BLOCK_SIZE;
+			src += AES_BLOCK_SIZE;
+		} while (--blocks);
+		err = blkcipher_walk_done(desc, &walk, 0);
+	}
+	return err;
+}
+
+static void inc_be128_ctr(__be32 ctr[], u32 addend)
+{
+	int i;
+
+	for (i = 3; i >= 0; i--, addend = 1) {
+		u32 n = be32_to_cpu(ctr[i]) + addend;
+
+		ctr[i] = cpu_to_be32(n);
+		if (n >= addend)
+			break;
+	}
+}
+
+static int aesbs_ctr_encrypt(struct blkcipher_desc *desc,
+			     struct scatterlist *dst, struct scatterlist *src,
+			     unsigned int nbytes)
+{
+	struct aesbs_ctr_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
+	struct blkcipher_walk walk;
+	u32 blocks;
+	int err;
+
+	blkcipher_walk_init(&walk, dst, src, nbytes);
+	err = blkcipher_walk_virt_block(desc, &walk, 8 * AES_BLOCK_SIZE);
+
+	while ((blocks = walk.nbytes / AES_BLOCK_SIZE)) {
+		u32 tail = walk.nbytes % AES_BLOCK_SIZE;
+		__be32 *ctr = (__be32 *)walk.iv;
+		u32 headroom = UINT_MAX - be32_to_cpu(ctr[3]);
+
+		/* avoid 32 bit counter overflow in the NEON code */
+		if (unlikely(headroom < blocks)) {
+			blocks = headroom + 1;
+			tail = walk.nbytes - blocks * AES_BLOCK_SIZE;
+		}
+		kernel_neon_begin();
+		bsaes_ctr32_encrypt_blocks(walk.src.virt.addr,
+					   walk.dst.virt.addr, blocks,
+					   &ctx->enc, walk.iv);
+		kernel_neon_end();
+		inc_be128_ctr(ctr, blocks);
+
+		nbytes -= blocks * AES_BLOCK_SIZE;
+		if (nbytes && nbytes == tail && nbytes <= AES_BLOCK_SIZE)
+			break;
+
+		err = blkcipher_walk_done(desc, &walk, tail);
+	}
+	if (walk.nbytes) {
+		u8 *tdst = walk.dst.virt.addr + blocks * AES_BLOCK_SIZE;
+		u8 *tsrc = walk.src.virt.addr + blocks * AES_BLOCK_SIZE;
+		u8 ks[AES_BLOCK_SIZE];
+
+		AES_encrypt(walk.iv, ks, &ctx->enc.rk);
+		if (tdst != tsrc)
+			memcpy(tdst, tsrc, nbytes);
+		crypto_xor(tdst, ks, nbytes);
+		err = blkcipher_walk_done(desc, &walk, 0);
+	}
+	return err;
+}
+
+static int aesbs_xts_encrypt(struct blkcipher_desc *desc,
+			     struct scatterlist *dst,
+			     struct scatterlist *src, unsigned int nbytes)
+{
+	struct aesbs_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
+	struct blkcipher_walk walk;
+	int err;
+
+	blkcipher_walk_init(&walk, dst, src, nbytes);
+	err = blkcipher_walk_virt_block(desc, &walk, 8 * AES_BLOCK_SIZE);
+
+	/* generate the initial tweak */
+	AES_encrypt(walk.iv, walk.iv, &ctx->twkey);
+
+	while (walk.nbytes) {
+		kernel_neon_begin();
+		bsaes_xts_encrypt(walk.src.virt.addr, walk.dst.virt.addr,
+				  walk.nbytes, &ctx->enc, walk.iv);
+		kernel_neon_end();
+		err = blkcipher_walk_done(desc, &walk, 0);
+	}
+	return err;
+}
+
+static int aesbs_xts_decrypt(struct blkcipher_desc *desc,
+			     struct scatterlist *dst,
+			     struct scatterlist *src, unsigned int nbytes)
+{
+	struct aesbs_xts_ctx *ctx = crypto_blkcipher_ctx(desc->tfm);
+	struct blkcipher_walk walk;
+	int err;
+
+	blkcipher_walk_init(&walk, dst, src, nbytes);
+	err = blkcipher_walk_virt_block(desc, &walk, 8 * AES_BLOCK_SIZE);
+
+	/* generate the initial tweak */
+	AES_encrypt(walk.iv, walk.iv, &ctx->twkey);
+
+	while (walk.nbytes) {
+		kernel_neon_begin();
+		bsaes_xts_decrypt(walk.src.virt.addr, walk.dst.virt.addr,
+				  walk.nbytes, &ctx->dec, walk.iv);
+		kernel_neon_end();
+		err = blkcipher_walk_done(desc, &walk, 0);
+	}
+	return err;
+}
+
+static struct crypto_alg aesbs_algs[] = { {
+	.cra_name		= "__cbc-aes-neonbs",
+	.cra_driver_name	= "__driver-cbc-aes-neonbs",
+	.cra_priority		= 0,
+	.cra_flags		= CRYPTO_ALG_TYPE_BLKCIPHER,
+	.cra_blocksize		= AES_BLOCK_SIZE,
+	.cra_ctxsize		= sizeof(struct aesbs_cbc_ctx),
+	.cra_alignmask		= 7,
+	.cra_type		= &crypto_blkcipher_type,
+	.cra_module		= THIS_MODULE,
+	.cra_blkcipher = {
+		.min_keysize	= AES_MIN_KEY_SIZE,
+		.max_keysize	= AES_MAX_KEY_SIZE,
+		.ivsize		= AES_BLOCK_SIZE,
+		.setkey		= aesbs_cbc_set_key,
+		.encrypt	= aesbs_cbc_encrypt,
+		.decrypt	= aesbs_cbc_decrypt,
+	},
+}, {
+	.cra_name		= "__ctr-aes-neonbs",
+	.cra_driver_name	= "__driver-ctr-aes-neonbs",
+	.cra_priority		= 0,
+	.cra_flags		= CRYPTO_ALG_TYPE_BLKCIPHER,
+	.cra_blocksize		= 1,
+	.cra_ctxsize		= sizeof(struct aesbs_ctr_ctx),
+	.cra_alignmask		= 7,
+	.cra_type		= &crypto_blkcipher_type,
+	.cra_module		= THIS_MODULE,
+	.cra_blkcipher = {
+		.min_keysize	= AES_MIN_KEY_SIZE,
+		.max_keysize	= AES_MAX_KEY_SIZE,
+		.ivsize		= AES_BLOCK_SIZE,
+		.setkey		= aesbs_ctr_set_key,
+		.encrypt	= aesbs_ctr_encrypt,
+		.decrypt	= aesbs_ctr_encrypt,
+	},
+}, {
+	.cra_name		= "__xts-aes-neonbs",
+	.cra_driver_name	= "__driver-xts-aes-neonbs",
+	.cra_priority		= 0,
+	.cra_flags		= CRYPTO_ALG_TYPE_BLKCIPHER,
+	.cra_blocksize		= AES_BLOCK_SIZE,
+	.cra_ctxsize		= sizeof(struct aesbs_xts_ctx),
+	.cra_alignmask		= 7,
+	.cra_type		= &crypto_blkcipher_type,
+	.cra_module		= THIS_MODULE,
+	.cra_blkcipher = {
+		.min_keysize	= 2 * AES_MIN_KEY_SIZE,
+		.max_keysize	= 2 * AES_MAX_KEY_SIZE,
+		.ivsize		= AES_BLOCK_SIZE,
+		.setkey		= aesbs_xts_set_key,
+		.encrypt	= aesbs_xts_encrypt,
+		.decrypt	= aesbs_xts_decrypt,
+	},
+}, {
+	.cra_name		= "cbc(aes)",
+	.cra_driver_name	= "cbc-aes-neonbs",
+	.cra_priority		= 300,
+	.cra_flags		= CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
+	.cra_blocksize		= AES_BLOCK_SIZE,
+	.cra_ctxsize		= sizeof(struct async_helper_ctx),
+	.cra_alignmask		= 7,
+	.cra_type		= &crypto_ablkcipher_type,
+	.cra_module		= THIS_MODULE,
+	.cra_init		= ablk_init,
+	.cra_exit		= ablk_exit,
+	.cra_ablkcipher = {
+		.min_keysize	= AES_MIN_KEY_SIZE,
+		.max_keysize	= AES_MAX_KEY_SIZE,
+		.ivsize		= AES_BLOCK_SIZE,
+		.setkey		= ablk_set_key,
+		.encrypt	= __ablk_encrypt,
+		.decrypt	= ablk_decrypt,
+	}
+}, {
+	.cra_name		= "ctr(aes)",
+	.cra_driver_name	= "ctr-aes-neonbs",
+	.cra_priority		= 300,
+	.cra_flags		= CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
+	.cra_blocksize		= 1,
+	.cra_ctxsize		= sizeof(struct async_helper_ctx),
+	.cra_alignmask		= 7,
+	.cra_type		= &crypto_ablkcipher_type,
+	.cra_module		= THIS_MODULE,
+	.cra_init		= ablk_init,
+	.cra_exit		= ablk_exit,
+	.cra_ablkcipher = {
+		.min_keysize	= AES_MIN_KEY_SIZE,
+		.max_keysize	= AES_MAX_KEY_SIZE,
+		.ivsize		= AES_BLOCK_SIZE,
+		.setkey		= ablk_set_key,
+		.encrypt	= ablk_encrypt,
+		.decrypt	= ablk_decrypt,
+	}
+}, {
+	.cra_name		= "xts(aes)",
+	.cra_driver_name	= "xts-aes-neonbs",
+	.cra_priority		= 300,
+	.cra_flags		= CRYPTO_ALG_TYPE_ABLKCIPHER|CRYPTO_ALG_ASYNC,
+	.cra_blocksize		= AES_BLOCK_SIZE,
+	.cra_ctxsize		= sizeof(struct async_helper_ctx),
+	.cra_alignmask		= 7,
+	.cra_type		= &crypto_ablkcipher_type,
+	.cra_module		= THIS_MODULE,
+	.cra_init		= ablk_init,
+	.cra_exit		= ablk_exit,
+	.cra_ablkcipher = {
+		.min_keysize	= 2 * AES_MIN_KEY_SIZE,
+		.max_keysize	= 2 * AES_MAX_KEY_SIZE,
+		.ivsize		= AES_BLOCK_SIZE,
+		.setkey		= ablk_set_key,
+		.encrypt	= ablk_encrypt,
+		.decrypt	= ablk_decrypt,
+	}
+} };
+
+static int __init aesbs_mod_init(void)
+{
+	if (!cpu_has_neon())
+		return -ENODEV;
+
+	return crypto_register_algs(aesbs_algs, ARRAY_SIZE(aesbs_algs));
+}
+
+static void __exit aesbs_mod_exit(void)
+{
+	crypto_unregister_algs(aesbs_algs, ARRAY_SIZE(aesbs_algs));
+}
+
+module_init(aesbs_mod_init);
+module_exit(aesbs_mod_exit);
+
+MODULE_DESCRIPTION("Bit sliced AES in CBC/CTR/XTS modes using NEON");
+MODULE_AUTHOR("Ard Biesheuvel <ard.biesheuvel@linaro.org>");
+MODULE_LICENSE("GPL");
diff --git a/arch/arm/crypto/bsaes-armv7.pl b/arch/arm/crypto/bsaes-armv7.pl
new file mode 100644
index 000000000000..f3d96d932573
--- /dev/null
+++ b/arch/arm/crypto/bsaes-armv7.pl
@@ -0,0 +1,2467 @@
+#!/usr/bin/env perl
+
+# ====================================================================
+# Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
+# project. The module is, however, dual licensed under OpenSSL and
+# CRYPTOGAMS licenses depending on where you obtain it. For further
+# details see http://www.openssl.org/~appro/cryptogams/.
+#
+# Specific modes and adaptation for Linux kernel by Ard Biesheuvel
+# <ard.biesheuvel@linaro.org>. Permission to use under GPL terms is
+# granted.
+# ====================================================================
+
+# Bit-sliced AES for ARM NEON
+#
+# February 2012.
+#
+# This implementation is direct adaptation of bsaes-x86_64 module for
+# ARM NEON. Except that this module is endian-neutral [in sense that
+# it can be compiled for either endianness] by courtesy of vld1.8's
+# neutrality. Initial version doesn't implement interface to OpenSSL,
+# only low-level primitives and unsupported entry points, just enough
+# to collect performance results, which for Cortex-A8 core are:
+#
+# encrypt	19.5 cycles per byte processed with 128-bit key
+# decrypt	22.1 cycles per byte processed with 128-bit key
+# key conv.	440  cycles per 128-bit key/0.18 of 8x block
+#
+# Snapdragon S4 encrypts byte in 17.6 cycles and decrypts in 19.7,
+# which is [much] worse than anticipated (for further details see
+# http://www.openssl.org/~appro/Snapdragon-S4.html).
+#
+# Cortex-A15 manages in 14.2/16.1 cycles [when integer-only code
+# manages in 20.0 cycles].
+#
+# When comparing to x86_64 results keep in mind that NEON unit is
+# [mostly] single-issue and thus can't [fully] benefit from
+# instruction-level parallelism. And when comparing to aes-armv4
+# results keep in mind key schedule conversion overhead (see
+# bsaes-x86_64.pl for further details)...
+#
+#						<appro@openssl.org>
+
+# April-August 2013
+#
+# Add CBC, CTR and XTS subroutines, adapt for kernel use.
+#
+#					<ard.biesheuvel@linaro.org>
+
+while (($output=shift) && ($output!~/^\w[\w\-]*\.\w+$/)) {}
+open STDOUT,">$output";
+
+my ($inp,$out,$len,$key)=("r0","r1","r2","r3");
+my @XMM=map("q$_",(0..15));
+
+{
+my ($key,$rounds,$const)=("r4","r5","r6");
+
+sub Dlo()   { shift=~m|q([1]?[0-9])|?"d".($1*2):"";     }
+sub Dhi()   { shift=~m|q([1]?[0-9])|?"d".($1*2+1):"";   }
+
+sub Sbox {
+# input in  lsb > [b0, b1, b2, b3, b4, b5, b6, b7] < msb
+# output in lsb > [b0, b1, b4, b6, b3, b7, b2, b5] < msb
+my @b=@_[0..7];
+my @t=@_[8..11];
+my @s=@_[12..15];
+	&InBasisChange	(@b);
+	&Inv_GF256	(@b[6,5,0,3,7,1,4,2],@t,@s);
+	&OutBasisChange	(@b[7,1,4,2,6,5,0,3]);
+}
+
+sub InBasisChange {
+# input in  lsb > [b0, b1, b2, b3, b4, b5, b6, b7] < msb
+# output in lsb > [b6, b5, b0, b3, b7, b1, b4, b2] < msb 
+my @b=@_[0..7];
+$code.=<<___;
+	veor	@b[2], @b[2], @b[1]
+	veor	@b[5], @b[5], @b[6]
+	veor	@b[3], @b[3], @b[0]
+	veor	@b[6], @b[6], @b[2]
+	veor	@b[5], @b[5], @b[0]
+
+	veor	@b[6], @b[6], @b[3]
+	veor	@b[3], @b[3], @b[7]
+	veor	@b[7], @b[7], @b[5]
+	veor	@b[3], @b[3], @b[4]
+	veor	@b[4], @b[4], @b[5]
+
+	veor	@b[2], @b[2], @b[7]
+	veor	@b[3], @b[3], @b[1]
+	veor	@b[1], @b[1], @b[5]
+___
+}
+
+sub OutBasisChange {
+# input in  lsb > [b0, b1, b2, b3, b4, b5, b6, b7] < msb
+# output in lsb > [b6, b1, b2, b4, b7, b0, b3, b5] < msb
+my @b=@_[0..7];
+$code.=<<___;
+	veor	@b[0], @b[0], @b[6]
+	veor	@b[1], @b[1], @b[4]
+	veor	@b[4], @b[4], @b[6]
+	veor	@b[2], @b[2], @b[0]
+	veor	@b[6], @b[6], @b[1]
+
+	veor	@b[1], @b[1], @b[5]
+	veor	@b[5], @b[5], @b[3]
+	veor	@b[3], @b[3], @b[7]
+	veor	@b[7], @b[7], @b[5]
+	veor	@b[2], @b[2], @b[5]
+
+	veor	@b[4], @b[4], @b[7]
+___
+}
+
+sub InvSbox {
+# input in lsb 	> [b0, b1, b2, b3, b4, b5, b6, b7] < msb
+# output in lsb	> [b0, b1, b6, b4, b2, b7, b3, b5] < msb
+my @b=@_[0..7];
+my @t=@_[8..11];
+my @s=@_[12..15];
+	&InvInBasisChange	(@b);
+	&Inv_GF256		(@b[5,1,2,6,3,7,0,4],@t,@s);
+	&InvOutBasisChange	(@b[3,7,0,4,5,1,2,6]);
+}
+
+sub InvInBasisChange {		# OutBasisChange in reverse (with twist)
+my @b=@_[5,1,2,6,3,7,0,4];
+$code.=<<___
+	 veor	@b[1], @b[1], @b[7]
+	veor	@b[4], @b[4], @b[7]
+
+	veor	@b[7], @b[7], @b[5]
+	 veor	@b[1], @b[1], @b[3]
+	veor	@b[2], @b[2], @b[5]
+	veor	@b[3], @b[3], @b[7]
+
+	veor	@b[6], @b[6], @b[1]
+	veor	@b[2], @b[2], @b[0]
+	 veor	@b[5], @b[5], @b[3]
+	veor	@b[4], @b[4], @b[6]
+	veor	@b[0], @b[0], @b[6]
+	veor	@b[1], @b[1], @b[4]
+___
+}
+
+sub InvOutBasisChange {		# InBasisChange in reverse
+my @b=@_[2,5,7,3,6,1,0,4];
+$code.=<<___;
+	veor	@b[1], @b[1], @b[5]
+	veor	@b[2], @b[2], @b[7]
+
+	veor	@b[3], @b[3], @b[1]
+	veor	@b[4], @b[4], @b[5]
+	veor	@b[7], @b[7], @b[5]
+	veor	@b[3], @b[3], @b[4]
+	 veor 	@b[5], @b[5], @b[0]
+	veor	@b[3], @b[3], @b[7]
+	 veor	@b[6], @b[6], @b[2]
+	 veor	@b[2], @b[2], @b[1]
+	veor	@b[6], @b[6], @b[3]
+
+	veor	@b[3], @b[3], @b[0]
+	veor	@b[5], @b[5], @b[6]
+___
+}
+
+sub Mul_GF4 {
+#;*************************************************************
+#;* Mul_GF4: Input x0-x1,y0-y1 Output x0-x1 Temp t0 (8) *
+#;*************************************************************
+my ($x0,$x1,$y0,$y1,$t0,$t1)=@_;
+$code.=<<___;
+	veor 	$t0, $y0, $y1
+	vand	$t0, $t0, $x0
+	veor	$x0, $x0, $x1
+	vand	$t1, $x1, $y0
+	vand	$x0, $x0, $y1
+	veor	$x1, $t1, $t0
+	veor	$x0, $x0, $t1
+___
+}
+
+sub Mul_GF4_N {				# not used, see next subroutine
+# multiply and scale by N
+my ($x0,$x1,$y0,$y1,$t0)=@_;
+$code.=<<___;
+	veor	$t0, $y0, $y1
+	vand	$t0, $t0, $x0
+	veor	$x0, $x0, $x1
+	vand	$x1, $x1, $y0
+	vand	$x0, $x0, $y1
+	veor	$x1, $x1, $x0
+	veor	$x0, $x0, $t0
+___
+}
+
+sub Mul_GF4_N_GF4 {
+# interleaved Mul_GF4_N and Mul_GF4
+my ($x0,$x1,$y0,$y1,$t0,
+    $x2,$x3,$y2,$y3,$t1)=@_;
+$code.=<<___;
+	veor	$t0, $y0, $y1
+	 veor 	$t1, $y2, $y3
+	vand	$t0, $t0, $x0
+	 vand	$t1, $t1, $x2
+	veor	$x0, $x0, $x1
+	 veor	$x2, $x2, $x3
+	vand	$x1, $x1, $y0
+	 vand	$x3, $x3, $y2
+	vand	$x0, $x0, $y1
+	 vand	$x2, $x2, $y3
+	veor	$x1, $x1, $x0
+	 veor	$x2, $x2, $x3
+	veor	$x0, $x0, $t0
+	 veor	$x3, $x3, $t1
+___
+}
+sub Mul_GF16_2 {
+my @x=@_[0..7];
+my @y=@_[8..11];
+my @t=@_[12..15];
+$code.=<<___;
+	veor	@t[0], @x[0], @x[2]
+	veor	@t[1], @x[1], @x[3]
+___
+	&Mul_GF4  	(@x[0], @x[1], @y[0], @y[1], @t[2..3]);
+$code.=<<___;
+	veor	@y[0], @y[0], @y[2]
+	veor	@y[1], @y[1], @y[3]
+___
+	Mul_GF4_N_GF4	(@t[0], @t[1], @y[0], @y[1], @t[3],
+			 @x[2], @x[3], @y[2], @y[3], @t[2]);
+$code.=<<___;
+	veor	@x[0], @x[0], @t[0]
+	veor	@x[2], @x[2], @t[0]
+	veor	@x[1], @x[1], @t[1]
+	veor	@x[3], @x[3], @t[1]
+
+	veor	@t[0], @x[4], @x[6]
+	veor	@t[1], @x[5], @x[7]
+___
+	&Mul_GF4_N_GF4	(@t[0], @t[1], @y[0], @y[1], @t[3],
+			 @x[6], @x[7], @y[2], @y[3], @t[2]);
+$code.=<<___;
+	veor	@y[0], @y[0], @y[2]
+	veor	@y[1], @y[1], @y[3]
+___
+	&Mul_GF4  	(@x[4], @x[5], @y[0], @y[1], @t[2..3]);
+$code.=<<___;
+	veor	@x[4], @x[4], @t[0]
+	veor	@x[6], @x[6], @t[0]
+	veor	@x[5], @x[5], @t[1]
+	veor	@x[7], @x[7], @t[1]
+___
+}
+sub Inv_GF256 {
+#;********************************************************************
+#;* Inv_GF256: Input x0-x7 Output x0-x7 Temp t0-t3,s0-s3 (144)       *
+#;********************************************************************
+my @x=@_[0..7];
+my @t=@_[8..11];
+my @s=@_[12..15];
+# direct optimizations from hardware
+$code.=<<___;
+	veor	@t[3], @x[4], @x[6]
+	veor	@t[2], @x[5], @x[7]
+	veor	@t[1], @x[1], @x[3]
+	veor	@s[1], @x[7], @x[6]
+	 vmov	@t[0], @t[2]
+	veor	@s[0], @x[0], @x[2]
+
+	vorr	@t[2], @t[2], @t[1]
+	veor	@s[3], @t[3], @t[0]
+	vand	@s[2], @t[3], @s[0]
+	vorr	@t[3], @t[3], @s[0]
+	veor	@s[0], @s[0], @t[1]
+	vand	@t[0], @t[0], @t[1]
+	veor	@t[1], @x[3], @x[2]
+	vand	@s[3], @s[3], @s[0]
+	vand	@s[1], @s[1], @t[1]
+	veor	@t[1], @x[4], @x[5]
+	veor	@s[0], @x[1], @x[0]
+	veor	@t[3], @t[3], @s[1]
+	veor	@t[2], @t[2], @s[1]
+	vand	@s[1], @t[1], @s[0]
+	vorr	@t[1], @t[1], @s[0]
+	veor	@t[3], @t[3], @s[3]
+	veor	@t[0], @t[0], @s[1]
+	veor	@t[2], @t[2], @s[2]
+	veor	@t[1], @t[1], @s[3]
+	veor	@t[0], @t[0], @s[2]
+	vand	@s[0], @x[7], @x[3]
+	veor	@t[1], @t[1], @s[2]
+	vand	@s[1], @x[6], @x[2]
+	vand	@s[2], @x[5], @x[1]
+	vorr	@s[3], @x[4], @x[0]
+	veor	@t[3], @t[3], @s[0]
+	veor	@t[1], @t[1], @s[2]
+	veor	@t[0], @t[0], @s[3]
+	veor	@t[2], @t[2], @s[1]
+
+	@ Inv_GF16 \t0, \t1, \t2, \t3, \s0, \s1, \s2, \s3
+
+	@ new smaller inversion
+
+	vand	@s[2], @t[3], @t[1]
+	vmov	@s[0], @t[0]
+
+	veor	@s[1], @t[2], @s[2]
+	veor	@s[3], @t[0], @s[2]
+	veor	@s[2], @t[0], @s[2]	@ @s[2]=@s[3]
+
+	vbsl	@s[1], @t[1], @t[0]
+	vbsl	@s[3], @t[3], @t[2]
+	veor	@t[3], @t[3], @t[2]
+
+	vbsl	@s[0], @s[1], @s[2]
+	vbsl	@t[0], @s[2], @s[1]
+
+	vand	@s[2], @s[0], @s[3]
+	veor	@t[1], @t[1], @t[0]
+
+	veor	@s[2], @s[2], @t[3]
+___
+# output in s3, s2, s1, t1
+
+# Mul_GF16_2 \x0, \x1, \x2, \x3, \x4, \x5, \x6, \x7, \t2, \t3, \t0, \t1, \s0, \s1, \s2, \s3
+
+# Mul_GF16_2 \x0, \x1, \x2, \x3, \x4, \x5, \x6, \x7, \s3, \s2, \s1, \t1, \s0, \t0, \t2, \t3
+	&Mul_GF16_2(@x,@s[3,2,1],@t[1],@s[0],@t[0,2,3]);
+
+### output msb > [x3,x2,x1,x0,x7,x6,x5,x4] < lsb
+}
+
+# AES linear components
+
+sub ShiftRows {
+my @x=@_[0..7];
+my @t=@_[8..11];
+my $mask=pop;
+$code.=<<___;
+	vldmia	$key!, {@t[0]-@t[3]}
+	veor	@t[0], @t[0], @x[0]
+	veor	@t[1], @t[1], @x[1]
+	vtbl.8	`&Dlo(@x[0])`, {@t[0]}, `&Dlo($mask)`
+	vtbl.8	`&Dhi(@x[0])`, {@t[0]}, `&Dhi($mask)`
+	vldmia	$key!, {@t[0]}
+	veor	@t[2], @t[2], @x[2]
+	vtbl.8	`&Dlo(@x[1])`, {@t[1]}, `&Dlo($mask)`
+	vtbl.8	`&Dhi(@x[1])`, {@t[1]}, `&Dhi($mask)`
+	vldmia	$key!, {@t[1]}
+	veor	@t[3], @t[3], @x[3]
+	vtbl.8	`&Dlo(@x[2])`, {@t[2]}, `&Dlo($mask)`
+	vtbl.8	`&Dhi(@x[2])`, {@t[2]}, `&Dhi($mask)`
+	vldmia	$key!, {@t[2]}
+	vtbl.8	`&Dlo(@x[3])`, {@t[3]}, `&Dlo($mask)`
+	vtbl.8	`&Dhi(@x[3])`, {@t[3]}, `&Dhi($mask)`
+	vldmia	$key!, {@t[3]}
+	veor	@t[0], @t[0], @x[4]
+	veor	@t[1], @t[1], @x[5]
+	vtbl.8	`&Dlo(@x[4])`, {@t[0]}, `&Dlo($mask)`
+	vtbl.8	`&Dhi(@x[4])`, {@t[0]}, `&Dhi($mask)`
+	veor	@t[2], @t[2], @x[6]
+	vtbl.8	`&Dlo(@x[5])`, {@t[1]}, `&Dlo($mask)`
+	vtbl.8	`&Dhi(@x[5])`, {@t[1]}, `&Dhi($mask)`
+	veor	@t[3], @t[3], @x[7]
+	vtbl.8	`&Dlo(@x[6])`, {@t[2]}, `&Dlo($mask)`
+	vtbl.8	`&Dhi(@x[6])`, {@t[2]}, `&Dhi($mask)`
+	vtbl.8	`&Dlo(@x[7])`, {@t[3]}, `&Dlo($mask)`
+	vtbl.8	`&Dhi(@x[7])`, {@t[3]}, `&Dhi($mask)`
+___
+}
+
+sub MixColumns {
+# modified to emit output in order suitable for feeding back to aesenc[last]
+my @x=@_[0..7];
+my @t=@_[8..15];
+my $inv=@_[16];	# optional
+$code.=<<___;
+	vext.8	@t[0], @x[0], @x[0], #12	@ x0 <<< 32
+	vext.8	@t[1], @x[1], @x[1], #12
+	 veor	@x[0], @x[0], @t[0]		@ x0 ^ (x0 <<< 32)
+	vext.8	@t[2], @x[2], @x[2], #12
+	 veor	@x[1], @x[1], @t[1]
+	vext.8	@t[3], @x[3], @x[3], #12
+	 veor	@x[2], @x[2], @t[2]
+	vext.8	@t[4], @x[4], @x[4], #12
+	 veor	@x[3], @x[3], @t[3]
+	vext.8	@t[5], @x[5], @x[5], #12
+	 veor	@x[4], @x[4], @t[4]
+	vext.8	@t[6], @x[6], @x[6], #12
+	 veor	@x[5], @x[5], @t[5]
+	vext.8	@t[7], @x[7], @x[7], #12
+	 veor	@x[6], @x[6], @t[6]
+
+	veor	@t[1], @t[1], @x[0]
+	 veor	@x[7], @x[7], @t[7]
+	 vext.8	@x[0], @x[0], @x[0], #8		@ (x0 ^ (x0 <<< 32)) <<< 64)
+	veor	@t[2], @t[2], @x[1]
+	veor	@t[0], @t[0], @x[7]
+	veor	@t[1], @t[1], @x[7]
+	 vext.8	@x[1], @x[1], @x[1], #8
+	veor	@t[5], @t[5], @x[4]
+	 veor	@x[0], @x[0], @t[0]
+	veor	@t[6], @t[6], @x[5]
+	 veor	@x[1], @x[1], @t[1]
+	 vext.8	@t[0], @x[4], @x[4], #8
+	veor	@t[4], @t[4], @x[3]
+	 vext.8	@t[1], @x[5], @x[5], #8
+	veor	@t[7], @t[7], @x[6]
+	 vext.8	@x[4], @x[3], @x[3], #8
+	veor	@t[3], @t[3], @x[2]
+	 vext.8	@x[5], @x[7], @x[7], #8
+	veor	@t[4], @t[4], @x[7]
+	 vext.8	@x[3], @x[6], @x[6], #8
+	veor	@t[3], @t[3], @x[7]
+	 vext.8	@x[6], @x[2], @x[2], #8
+	veor	@x[7], @t[1], @t[5]
+___
+$code.=<<___ if (!$inv);
+	veor	@x[2], @t[0], @t[4]
+	veor	@x[4], @x[4], @t[3]
+	veor	@x[5], @x[5], @t[7]
+	veor	@x[3], @x[3], @t[6]
+	 @ vmov	@x[2], @t[0]
+	veor	@x[6], @x[6], @t[2]
+	 @ vmov	@x[7], @t[1]
+___
+$code.=<<___ if ($inv);
+	veor	@t[3], @t[3], @x[4]
+	veor	@x[5], @x[5], @t[7]
+	veor	@x[2], @x[3], @t[6]
+	veor	@x[3], @t[0], @t[4]
+	veor	@x[4], @x[6], @t[2]
+	vmov	@x[6], @t[3]
+	 @ vmov	@x[7], @t[1]
+___
+}
+
+sub InvMixColumns_orig {
+my @x=@_[0..7];
+my @t=@_[8..15];
+
+$code.=<<___;
+	@ multiplication by 0x0e
+	vext.8	@t[7], @x[7], @x[7], #12
+	vmov	@t[2], @x[2]
+	veor	@x[2], @x[2], @x[5]		@ 2 5
+	veor	@x[7], @x[7], @x[5]		@ 7 5
+	vext.8	@t[0], @x[0], @x[0], #12
+	vmov	@t[5], @x[5]
+	veor	@x[5], @x[5], @x[0]		@ 5 0		[1]
+	veor	@x[0], @x[0], @x[1]		@ 0 1
+	vext.8	@t[1], @x[1], @x[1], #12
+	veor	@x[1], @x[1], @x[2]		@ 1 25
+	veor	@x[0], @x[0], @x[6]		@ 01 6		[2]
+	vext.8	@t[3], @x[3], @x[3], #12
+	veor	@x[1], @x[1], @x[3]		@ 125 3		[4]
+	veor	@x[2], @x[2], @x[0]		@ 25 016	[3]
+	veor	@x[3], @x[3], @x[7]		@ 3 75
+	veor	@x[7], @x[7], @x[6]		@ 75 6		[0]
+	vext.8	@t[6], @x[6], @x[6], #12
+	vmov	@t[4], @x[4]
+	veor	@x[6], @x[6], @x[4]		@ 6 4
+	veor	@x[4], @x[4], @x[3]		@ 4 375		[6]
+	veor	@x[3], @x[3], @x[7]		@ 375 756=36
+	veor	@x[6], @x[6], @t[5]		@ 64 5		[7]
+	veor	@x[3], @x[3], @t[2]		@ 36 2
+	vext.8	@t[5], @t[5], @t[5], #12
+	veor	@x[3], @x[3], @t[4]		@ 362 4		[5]
+___
+					my @y = @x[7,5,0,2,1,3,4,6];
+$code.=<<___;
+	@ multiplication by 0x0b
+	veor	@y[1], @y[1], @y[0]
+	veor	@y[0], @y[0], @t[0]
+	vext.8	@t[2], @t[2], @t[2], #12
+	veor	@y[1], @y[1], @t[1]
+	veor	@y[0], @y[0], @t[5]
+	vext.8	@t[4], @t[4], @t[4], #12
+	veor	@y[1], @y[1], @t[6]
+	veor	@y[0], @y[0], @t[7]
+	veor	@t[7], @t[7], @t[6]		@ clobber t[7]
+
+	veor	@y[3], @y[3], @t[0]
+	 veor	@y[1], @y[1], @y[0]
+	vext.8	@t[0], @t[0], @t[0], #12
+	veor	@y[2], @y[2], @t[1]
+	veor	@y[4], @y[4], @t[1]
+	vext.8	@t[1], @t[1], @t[1], #12
+	veor	@y[2], @y[2], @t[2]
+	veor	@y[3], @y[3], @t[2]
+	veor	@y[5], @y[5], @t[2]
+	veor	@y[2], @y[2], @t[7]
+	vext.8	@t[2], @t[2], @t[2], #12
+	veor	@y[3], @y[3], @t[3]
+	veor	@y[6], @y[6], @t[3]
+	veor	@y[4], @y[4], @t[3]
+	veor	@y[7], @y[7], @t[4]
+	vext.8	@t[3], @t[3], @t[3], #12
+	veor	@y[5], @y[5], @t[4]
+	veor	@y[7], @y[7], @t[7]
+	veor	@t[7], @t[7], @t[5]		@ clobber t[7] even more
+	veor	@y[3], @y[3], @t[5]
+	veor	@y[4], @y[4], @t[4]
+
+	veor	@y[5], @y[5], @t[7]
+	vext.8	@t[4], @t[4], @t[4], #12
+	veor	@y[6], @y[6], @t[7]
+	veor	@y[4], @y[4], @t[7]
+
+	veor	@t[7], @t[7], @t[5]
+	vext.8	@t[5], @t[5], @t[5], #12
+
+	@ multiplication by 0x0d
+	veor	@y[4], @y[4], @y[7]
+	 veor	@t[7], @t[7], @t[6]		@ restore t[7]
+	veor	@y[7], @y[7], @t[4]
+	vext.8	@t[6], @t[6], @t[6], #12
+	veor	@y[2], @y[2], @t[0]
+	veor	@y[7], @y[7], @t[5]
+	vext.8	@t[7], @t[7], @t[7], #12
+	veor	@y[2], @y[2], @t[2]
+
+	veor	@y[3], @y[3], @y[1]
+	veor	@y[1], @y[1], @t[1]
+	veor	@y[0], @y[0], @t[0]
+	veor	@y[3], @y[3], @t[0]
+	veor	@y[1], @y[1], @t[5]
+	veor	@y[0], @y[0], @t[5]
+	vext.8	@t[0], @t[0], @t[0], #12
+	veor	@y[1], @y[1], @t[7]
+	veor	@y[0], @y[0], @t[6]
+	veor	@y[3], @y[3], @y[1]
+	veor	@y[4], @y[4], @t[1]
+	vext.8	@t[1], @t[1], @t[1], #12
+
+	veor	@y[7], @y[7], @t[7]
+	veor	@y[4], @y[4], @t[2]
+	veor	@y[5], @y[5], @t[2]
+	veor	@y[2], @y[2], @t[6]
+	veor	@t[6], @t[6], @t[3]		@ clobber t[6]
+	vext.8	@t[2], @t[2], @t[2], #12
+	veor	@y[4], @y[4], @y[7]
+	veor	@y[3], @y[3], @t[6]
+
+	veor	@y[6], @y[6], @t[6]
+	veor	@y[5], @y[5], @t[5]
+	vext.8	@t[5], @t[5], @t[5], #12
+	veor	@y[6], @y[6], @t[4]
+	vext.8	@t[4], @t[4], @t[4], #12
+	veor	@y[5], @y[5], @t[6]
+	veor	@y[6], @y[6], @t[7]
+	vext.8	@t[7], @t[7], @t[7], #12
+	veor	@t[6], @t[6], @t[3]		@ restore t[6]
+	vext.8	@t[3], @t[3], @t[3], #12
+
+	@ multiplication by 0x09
+	veor	@y[4], @y[4], @y[1]
+	veor	@t[1], @t[1], @y[1]		@ t[1]=y[1]
+	veor	@t[0], @t[0], @t[5]		@ clobber t[0]
+	vext.8	@t[6], @t[6], @t[6], #12
+	veor	@t[1], @t[1], @t[5]
+	veor	@y[3], @y[3], @t[0]
+	veor	@t[0], @t[0], @y[0]		@ t[0]=y[0]
+	veor	@t[1], @t[1], @t[6]
+	veor	@t[6], @t[6], @t[7]		@ clobber t[6]
+	veor	@y[4], @y[4], @t[1]
+	veor	@y[7], @y[7], @t[4]
+	veor	@y[6], @y[6], @t[3]
+	veor	@y[5], @y[5], @t[2]
+	veor	@t[4], @t[4], @y[4]		@ t[4]=y[4]
+	veor	@t[3], @t[3], @y[3]		@ t[3]=y[3]
+	veor	@t[5], @t[5], @y[5]		@ t[5]=y[5]
+	veor	@t[2], @t[2], @y[2]		@ t[2]=y[2]
+	veor	@t[3], @t[3], @t[7]
+	veor	@XMM[5], @t[5], @t[6]
+	veor	@XMM[6], @t[6], @y[6]		@ t[6]=y[6]
+	veor	@XMM[2], @t[2], @t[6]
+	veor	@XMM[7], @t[7], @y[7]		@ t[7]=y[7]
+
+	vmov	@XMM[0], @t[0]
+	vmov	@XMM[1], @t[1]
+	@ vmov	@XMM[2], @t[2]
+	vmov	@XMM[3], @t[3]
+	vmov	@XMM[4], @t[4]
+	@ vmov	@XMM[5], @t[5]
+	@ vmov	@XMM[6], @t[6]
+	@ vmov	@XMM[7], @t[7]
+___
+}
+
+sub InvMixColumns {
+my @x=@_[0..7];
+my @t=@_[8..15];
+
+# Thanks to Jussi Kivilinna for providing pointer to
+#
+# | 0e 0b 0d 09 |   | 02 03 01 01 |   | 05 00 04 00 |
+# | 09 0e 0b 0d | = | 01 02 03 01 | x | 00 05 00 04 |
+# | 0d 09 0e 0b |   | 01 01 02 03 |   | 04 00 05 00 |
+# | 0b 0d 09 0e |   | 03 01 01 02 |   | 00 04 00 05 |
+
+$code.=<<___;
+	@ multiplication by 0x05-0x00-0x04-0x00
+	vext.8	@t[0], @x[0], @x[0], #8
+	vext.8	@t[6], @x[6], @x[6], #8
+	vext.8	@t[7], @x[7], @x[7], #8
+	veor	@t[0], @t[0], @x[0]
+	vext.8	@t[1], @x[1], @x[1], #8
+	veor	@t[6], @t[6], @x[6]
+	vext.8	@t[2], @x[2], @x[2], #8
+	veor	@t[7], @t[7], @x[7]
+	vext.8	@t[3], @x[3], @x[3], #8
+	veor	@t[1], @t[1], @x[1]
+	vext.8	@t[4], @x[4], @x[4], #8
+	veor	@t[2], @t[2], @x[2]
+	vext.8	@t[5], @x[5], @x[5], #8
+	veor	@t[3], @t[3], @x[3]
+	veor	@t[4], @t[4], @x[4]
+	veor	@t[5], @t[5], @x[5]
+
+	 veor	@x[0], @x[0], @t[6]
+	 veor	@x[1], @x[1], @t[6]
+	 veor	@x[2], @x[2], @t[0]
+	 veor	@x[4], @x[4], @t[2]
+	 veor	@x[3], @x[3], @t[1]
+	 veor	@x[1], @x[1], @t[7]
+	 veor	@x[2], @x[2], @t[7]
+	 veor	@x[4], @x[4], @t[6]
+	 veor	@x[5], @x[5], @t[3]
+	 veor	@x[3], @x[3], @t[6]
+	 veor	@x[6], @x[6], @t[4]
+	 veor	@x[4], @x[4], @t[7]
+	 veor	@x[5], @x[5], @t[7]
+	 veor	@x[7], @x[7], @t[5]
+___
+	&MixColumns	(@x,@t,1);	# flipped 2<->3 and 4<->6
+}
+
+sub swapmove {
+my ($a,$b,$n,$mask,$t)=@_;
+$code.=<<___;
+	vshr.u64	$t, $b, #$n
+	veor		$t, $t, $a
+	vand		$t, $t, $mask
+	veor		$a, $a, $t
+	vshl.u64	$t, $t, #$n
+	veor		$b, $b, $t
+___
+}
+sub swapmove2x {
+my ($a0,$b0,$a1,$b1,$n,$mask,$t0,$t1)=@_;
+$code.=<<___;
+	vshr.u64	$t0, $b0, #$n
+	 vshr.u64	$t1, $b1, #$n
+	veor		$t0, $t0, $a0
+	 veor		$t1, $t1, $a1
+	vand		$t0, $t0, $mask
+	 vand		$t1, $t1, $mask
+	veor		$a0, $a0, $t0
+	vshl.u64	$t0, $t0, #$n
+	 veor		$a1, $a1, $t1
+	 vshl.u64	$t1, $t1, #$n
+	veor		$b0, $b0, $t0
+	 veor		$b1, $b1, $t1
+___
+}
+
+sub bitslice {
+my @x=reverse(@_[0..7]);
+my ($t0,$t1,$t2,$t3)=@_[8..11];
+$code.=<<___;
+	vmov.i8	$t0,#0x55			@ compose .LBS0
+	vmov.i8	$t1,#0x33			@ compose .LBS1
+___
+	&swapmove2x(@x[0,1,2,3],1,$t0,$t2,$t3);
+	&swapmove2x(@x[4,5,6,7],1,$t0,$t2,$t3);
+$code.=<<___;
+	vmov.i8	$t0,#0x0f			@ compose .LBS2
+___
+	&swapmove2x(@x[0,2,1,3],2,$t1,$t2,$t3);
+	&swapmove2x(@x[4,6,5,7],2,$t1,$t2,$t3);
+
+	&swapmove2x(@x[0,4,1,5],4,$t0,$t2,$t3);
+	&swapmove2x(@x[2,6,3,7],4,$t0,$t2,$t3);
+}
+
+$code.=<<___;
+#ifndef __KERNEL__
+# include "arm_arch.h"
+
+# define VFP_ABI_PUSH	vstmdb	sp!,{d8-d15}
+# define VFP_ABI_POP	vldmia	sp!,{d8-d15}
+# define VFP_ABI_FRAME	0x40
+#else
+# define VFP_ABI_PUSH
+# define VFP_ABI_POP
+# define VFP_ABI_FRAME	0
+# define BSAES_ASM_EXTENDED_KEY
+# define XTS_CHAIN_TWEAK
+# define __ARM_ARCH__ __LINUX_ARM_ARCH__
+#endif
+
+#ifdef __thumb__
+# define adrl adr
+#endif
+
+#if __ARM_ARCH__>=7
+.text
+.syntax	unified 	@ ARMv7-capable assembler is expected to handle this
+#ifdef __thumb2__
+.thumb
+#else
+.code   32
+#endif
+
+.fpu	neon
+
+.type	_bsaes_decrypt8,%function
+.align	4
+_bsaes_decrypt8:
+	adr	$const,_bsaes_decrypt8
+	vldmia	$key!, {@XMM[9]}		@ round 0 key
+	add	$const,$const,#.LM0ISR-_bsaes_decrypt8
+
+	vldmia	$const!, {@XMM[8]}		@ .LM0ISR
+	veor	@XMM[10], @XMM[0], @XMM[9]	@ xor with round0 key
+	veor	@XMM[11], @XMM[1], @XMM[9]
+	 vtbl.8	`&Dlo(@XMM[0])`, {@XMM[10]}, `&Dlo(@XMM[8])`
+	 vtbl.8	`&Dhi(@XMM[0])`, {@XMM[10]}, `&Dhi(@XMM[8])`
+	veor	@XMM[12], @XMM[2], @XMM[9]
+	 vtbl.8	`&Dlo(@XMM[1])`, {@XMM[11]}, `&Dlo(@XMM[8])`
+	 vtbl.8	`&Dhi(@XMM[1])`, {@XMM[11]}, `&Dhi(@XMM[8])`
+	veor	@XMM[13], @XMM[3], @XMM[9]
+	 vtbl.8	`&Dlo(@XMM[2])`, {@XMM[12]}, `&Dlo(@XMM[8])`
+	 vtbl.8	`&Dhi(@XMM[2])`, {@XMM[12]}, `&Dhi(@XMM[8])`
+	veor	@XMM[14], @XMM[4], @XMM[9]
+	 vtbl.8	`&Dlo(@XMM[3])`, {@XMM[13]}, `&Dlo(@XMM[8])`
+	 vtbl.8	`&Dhi(@XMM[3])`, {@XMM[13]}, `&Dhi(@XMM[8])`
+	veor	@XMM[15], @XMM[5], @XMM[9]
+	 vtbl.8	`&Dlo(@XMM[4])`, {@XMM[14]}, `&Dlo(@XMM[8])`
+	 vtbl.8	`&Dhi(@XMM[4])`, {@XMM[14]}, `&Dhi(@XMM[8])`
+	veor	@XMM[10], @XMM[6], @XMM[9]
+	 vtbl.8	`&Dlo(@XMM[5])`, {@XMM[15]}, `&Dlo(@XMM[8])`
+	 vtbl.8	`&Dhi(@XMM[5])`, {@XMM[15]}, `&Dhi(@XMM[8])`
+	veor	@XMM[11], @XMM[7], @XMM[9]
+	 vtbl.8	`&Dlo(@XMM[6])`, {@XMM[10]}, `&Dlo(@XMM[8])`
+	 vtbl.8	`&Dhi(@XMM[6])`, {@XMM[10]}, `&Dhi(@XMM[8])`
+	 vtbl.8	`&Dlo(@XMM[7])`, {@XMM[11]}, `&Dlo(@XMM[8])`
+	 vtbl.8	`&Dhi(@XMM[7])`, {@XMM[11]}, `&Dhi(@XMM[8])`
+___
+	&bitslice	(@XMM[0..7, 8..11]);
+$code.=<<___;
+	sub	$rounds,$rounds,#1
+	b	.Ldec_sbox
+.align	4
+.Ldec_loop:
+___
+	&ShiftRows	(@XMM[0..7, 8..12]);
+$code.=".Ldec_sbox:\n";
+	&InvSbox	(@XMM[0..7, 8..15]);
+$code.=<<___;
+	subs	$rounds,$rounds,#1
+	bcc	.Ldec_done
+___
+	&InvMixColumns	(@XMM[0,1,6,4,2,7,3,5, 8..15]);
+$code.=<<___;
+	vldmia	$const, {@XMM[12]}		@ .LISR
+	ite	eq				@ Thumb2 thing, sanity check in ARM
+	addeq	$const,$const,#0x10
+	bne	.Ldec_loop
+	vldmia	$const, {@XMM[12]}		@ .LISRM0
+	b	.Ldec_loop
+.align	4
+.Ldec_done:
+___
+	&bitslice	(@XMM[0,1,6,4,2,7,3,5, 8..11]);
+$code.=<<___;
+	vldmia	$key, {@XMM[8]}			@ last round key
+	veor	@XMM[6], @XMM[6], @XMM[8]
+	veor	@XMM[4], @XMM[4], @XMM[8]
+	veor	@XMM[2], @XMM[2], @XMM[8]
+	veor	@XMM[7], @XMM[7], @XMM[8]
+	veor	@XMM[3], @XMM[3], @XMM[8]
+	veor	@XMM[5], @XMM[5], @XMM[8]
+	veor	@XMM[0], @XMM[0], @XMM[8]
+	veor	@XMM[1], @XMM[1], @XMM[8]
+	bx	lr
+.size	_bsaes_decrypt8,.-_bsaes_decrypt8
+
+.type	_bsaes_const,%object
+.align	6
+_bsaes_const:
+.LM0ISR:	@ InvShiftRows constants
+	.quad	0x0a0e0206070b0f03, 0x0004080c0d010509
+.LISR:
+	.quad	0x0504070602010003, 0x0f0e0d0c080b0a09
+.LISRM0:
+	.quad	0x01040b0e0205080f, 0x0306090c00070a0d
+.LM0SR:		@ ShiftRows constants
+	.quad	0x0a0e02060f03070b, 0x0004080c05090d01
+.LSR:
+	.quad	0x0504070600030201, 0x0f0e0d0c0a09080b
+.LSRM0:
+	.quad	0x0304090e00050a0f, 0x01060b0c0207080d
+.LM0:
+	.quad	0x02060a0e03070b0f, 0x0004080c0105090d
+.LREVM0SR:
+	.quad	0x090d01050c000408, 0x03070b0f060a0e02
+.asciz	"Bit-sliced AES for NEON, CRYPTOGAMS by <appro\@openssl.org>"
+.align	6
+.size	_bsaes_const,.-_bsaes_const
+
+.type	_bsaes_encrypt8,%function
+.align	4
+_bsaes_encrypt8:
+	adr	$const,_bsaes_encrypt8
+	vldmia	$key!, {@XMM[9]}		@ round 0 key
+	sub	$const,$const,#_bsaes_encrypt8-.LM0SR
+
+	vldmia	$const!, {@XMM[8]}		@ .LM0SR
+_bsaes_encrypt8_alt:
+	veor	@XMM[10], @XMM[0], @XMM[9]	@ xor with round0 key
+	veor	@XMM[11], @XMM[1], @XMM[9]
+	 vtbl.8	`&Dlo(@XMM[0])`, {@XMM[10]}, `&Dlo(@XMM[8])`
+	 vtbl.8	`&Dhi(@XMM[0])`, {@XMM[10]}, `&Dhi(@XMM[8])`
+	veor	@XMM[12], @XMM[2], @XMM[9]
+	 vtbl.8	`&Dlo(@XMM[1])`, {@XMM[11]}, `&Dlo(@XMM[8])`
+	 vtbl.8	`&Dhi(@XMM[1])`, {@XMM[11]}, `&Dhi(@XMM[8])`
+	veor	@XMM[13], @XMM[3], @XMM[9]
+	 vtbl.8	`&Dlo(@XMM[2])`, {@XMM[12]}, `&Dlo(@XMM[8])`
+	 vtbl.8	`&Dhi(@XMM[2])`, {@XMM[12]}, `&Dhi(@XMM[8])`
+	veor	@XMM[14], @XMM[4], @XMM[9]
+	 vtbl.8	`&Dlo(@XMM[3])`, {@XMM[13]}, `&Dlo(@XMM[8])`
+	 vtbl.8	`&Dhi(@XMM[3])`, {@XMM[13]}, `&Dhi(@XMM[8])`
+	veor	@XMM[15], @XMM[5], @XMM[9]
+	 vtbl.8	`&Dlo(@XMM[4])`, {@XMM[14]}, `&Dlo(@XMM[8])`
+	 vtbl.8	`&Dhi(@XMM[4])`, {@XMM[14]}, `&Dhi(@XMM[8])`
+	veor	@XMM[10], @XMM[6], @XMM[9]
+	 vtbl.8	`&Dlo(@XMM[5])`, {@XMM[15]}, `&Dlo(@XMM[8])`
+	 vtbl.8	`&Dhi(@XMM[5])`, {@XMM[15]}, `&Dhi(@XMM[8])`
+	veor	@XMM[11], @XMM[7], @XMM[9]
+	 vtbl.8	`&Dlo(@XMM[6])`, {@XMM[10]}, `&Dlo(@XMM[8])`
+	 vtbl.8	`&Dhi(@XMM[6])`, {@XMM[10]}, `&Dhi(@XMM[8])`
+	 vtbl.8	`&Dlo(@XMM[7])`, {@XMM[11]}, `&Dlo(@XMM[8])`
+	 vtbl.8	`&Dhi(@XMM[7])`, {@XMM[11]}, `&Dhi(@XMM[8])`
+_bsaes_encrypt8_bitslice:
+___
+	&bitslice	(@XMM[0..7, 8..11]);
+$code.=<<___;
+	sub	$rounds,$rounds,#1
+	b	.Lenc_sbox
+.align	4
+.Lenc_loop:
+___
+	&ShiftRows	(@XMM[0..7, 8..12]);
+$code.=".Lenc_sbox:\n";
+	&Sbox		(@XMM[0..7, 8..15]);
+$code.=<<___;
+	subs	$rounds,$rounds,#1
+	bcc	.Lenc_done
+___
+	&MixColumns	(@XMM[0,1,4,6,3,7,2,5, 8..15]);
+$code.=<<___;
+	vldmia	$const, {@XMM[12]}		@ .LSR
+	ite	eq				@ Thumb2 thing, samity check in ARM
+	addeq	$const,$const,#0x10
+	bne	.Lenc_loop
+	vldmia	$const, {@XMM[12]}		@ .LSRM0
+	b	.Lenc_loop
+.align	4
+.Lenc_done:
+___
+	# output in lsb > [t0, t1, t4, t6, t3, t7, t2, t5] < msb
+	&bitslice	(@XMM[0,1,4,6,3,7,2,5, 8..11]);
+$code.=<<___;
+	vldmia	$key, {@XMM[8]}			@ last round key
+	veor	@XMM[4], @XMM[4], @XMM[8]
+	veor	@XMM[6], @XMM[6], @XMM[8]
+	veor	@XMM[3], @XMM[3], @XMM[8]
+	veor	@XMM[7], @XMM[7], @XMM[8]
+	veor	@XMM[2], @XMM[2], @XMM[8]
+	veor	@XMM[5], @XMM[5], @XMM[8]
+	veor	@XMM[0], @XMM[0], @XMM[8]
+	veor	@XMM[1], @XMM[1], @XMM[8]
+	bx	lr
+.size	_bsaes_encrypt8,.-_bsaes_encrypt8
+___
+}
+{
+my ($out,$inp,$rounds,$const)=("r12","r4","r5","r6");
+
+sub bitslice_key {
+my @x=reverse(@_[0..7]);
+my ($bs0,$bs1,$bs2,$t2,$t3)=@_[8..12];
+
+	&swapmove	(@x[0,1],1,$bs0,$t2,$t3);
+$code.=<<___;
+	@ &swapmove(@x[2,3],1,$t0,$t2,$t3);
+	vmov	@x[2], @x[0]
+	vmov	@x[3], @x[1]
+___
+	#&swapmove2x(@x[4,5,6,7],1,$t0,$t2,$t3);
+
+	&swapmove2x	(@x[0,2,1,3],2,$bs1,$t2,$t3);
+$code.=<<___;
+	@ &swapmove2x(@x[4,6,5,7],2,$t1,$t2,$t3);
+	vmov	@x[4], @x[0]
+	vmov	@x[6], @x[2]
+	vmov	@x[5], @x[1]
+	vmov	@x[7], @x[3]
+___
+	&swapmove2x	(@x[0,4,1,5],4,$bs2,$t2,$t3);
+	&swapmove2x	(@x[2,6,3,7],4,$bs2,$t2,$t3);
+}
+
+$code.=<<___;
+.type	_bsaes_key_convert,%function
+.align	4
+_bsaes_key_convert:
+	adr	$const,_bsaes_key_convert
+	vld1.8	{@XMM[7]},  [$inp]!		@ load round 0 key
+	sub	$const,$const,#_bsaes_key_convert-.LM0
+	vld1.8	{@XMM[15]}, [$inp]!		@ load round 1 key
+
+	vmov.i8	@XMM[8],  #0x01			@ bit masks
+	vmov.i8	@XMM[9],  #0x02
+	vmov.i8	@XMM[10], #0x04
+	vmov.i8	@XMM[11], #0x08
+	vmov.i8	@XMM[12], #0x10
+	vmov.i8	@XMM[13], #0x20
+	vldmia	$const, {@XMM[14]}		@ .LM0
+
+#ifdef __ARMEL__
+	vrev32.8	@XMM[7],  @XMM[7]
+	vrev32.8	@XMM[15], @XMM[15]
+#endif
+	sub	$rounds,$rounds,#1
+	vstmia	$out!, {@XMM[7]}		@ save round 0 key
+	b	.Lkey_loop
+
+.align	4
+.Lkey_loop:
+	vtbl.8	`&Dlo(@XMM[7])`,{@XMM[15]},`&Dlo(@XMM[14])`
+	vtbl.8	`&Dhi(@XMM[7])`,{@XMM[15]},`&Dhi(@XMM[14])`
+	vmov.i8	@XMM[6],  #0x40
+	vmov.i8	@XMM[15], #0x80
+
+	vtst.8	@XMM[0], @XMM[7], @XMM[8]
+	vtst.8	@XMM[1], @XMM[7], @XMM[9]
+	vtst.8	@XMM[2], @XMM[7], @XMM[10]
+	vtst.8	@XMM[3], @XMM[7], @XMM[11]
+	vtst.8	@XMM[4], @XMM[7], @XMM[12]
+	vtst.8	@XMM[5], @XMM[7], @XMM[13]
+	vtst.8	@XMM[6], @XMM[7], @XMM[6]
+	vtst.8	@XMM[7], @XMM[7], @XMM[15]
+	vld1.8	{@XMM[15]}, [$inp]!		@ load next round key
+	vmvn	@XMM[0], @XMM[0]		@ "pnot"
+	vmvn	@XMM[1], @XMM[1]
+	vmvn	@XMM[5], @XMM[5]
+	vmvn	@XMM[6], @XMM[6]
+#ifdef __ARMEL__
+	vrev32.8	@XMM[15], @XMM[15]
+#endif
+	subs	$rounds,$rounds,#1
+	vstmia	$out!,{@XMM[0]-@XMM[7]}		@ write bit-sliced round key
+	bne	.Lkey_loop
+
+	vmov.i8	@XMM[7],#0x63			@ compose .L63
+	@ don't save last round key
+	bx	lr
+.size	_bsaes_key_convert,.-_bsaes_key_convert
+___
+}
+
+if (0) {		# following four functions are unsupported interface
+			# used for benchmarking...
+$code.=<<___;
+.globl	bsaes_enc_key_convert
+.type	bsaes_enc_key_convert,%function
+.align	4
+bsaes_enc_key_convert:
+	stmdb	sp!,{r4-r6,lr}
+	vstmdb	sp!,{d8-d15}		@ ABI specification says so
+
+	ldr	r5,[$inp,#240]			@ pass rounds
+	mov	r4,$inp				@ pass key
+	mov	r12,$out			@ pass key schedule
+	bl	_bsaes_key_convert
+	veor	@XMM[7],@XMM[7],@XMM[15]	@ fix up last round key
+	vstmia	r12, {@XMM[7]}			@ save last round key
+
+	vldmia	sp!,{d8-d15}
+	ldmia	sp!,{r4-r6,pc}
+.size	bsaes_enc_key_convert,.-bsaes_enc_key_convert
+
+.globl	bsaes_encrypt_128
+.type	bsaes_encrypt_128,%function
+.align	4
+bsaes_encrypt_128:
+	stmdb	sp!,{r4-r6,lr}
+	vstmdb	sp!,{d8-d15}		@ ABI specification says so
+.Lenc128_loop:
+	vld1.8	{@XMM[0]-@XMM[1]}, [$inp]!	@ load input
+	vld1.8	{@XMM[2]-@XMM[3]}, [$inp]!
+	mov	r4,$key				@ pass the key
+	vld1.8	{@XMM[4]-@XMM[5]}, [$inp]!
+	mov	r5,#10				@ pass rounds
+	vld1.8	{@XMM[6]-@XMM[7]}, [$inp]!
+
+	bl	_bsaes_encrypt8
+
+	vst1.8	{@XMM[0]-@XMM[1]}, [$out]!	@ write output
+	vst1.8	{@XMM[4]}, [$out]!
+	vst1.8	{@XMM[6]}, [$out]!
+	vst1.8	{@XMM[3]}, [$out]!
+	vst1.8	{@XMM[7]}, [$out]!
+	vst1.8	{@XMM[2]}, [$out]!
+	subs	$len,$len,#0x80
+	vst1.8	{@XMM[5]}, [$out]!
+	bhi	.Lenc128_loop
+
+	vldmia	sp!,{d8-d15}
+	ldmia	sp!,{r4-r6,pc}
+.size	bsaes_encrypt_128,.-bsaes_encrypt_128
+
+.globl	bsaes_dec_key_convert
+.type	bsaes_dec_key_convert,%function
+.align	4
+bsaes_dec_key_convert:
+	stmdb	sp!,{r4-r6,lr}
+	vstmdb	sp!,{d8-d15}		@ ABI specification says so
+
+	ldr	r5,[$inp,#240]			@ pass rounds
+	mov	r4,$inp				@ pass key
+	mov	r12,$out			@ pass key schedule
+	bl	_bsaes_key_convert
+	vldmia	$out, {@XMM[6]}
+	vstmia	r12,  {@XMM[15]}		@ save last round key
+	veor	@XMM[7], @XMM[7], @XMM[6]	@ fix up round 0 key
+	vstmia	$out, {@XMM[7]}
+
+	vldmia	sp!,{d8-d15}
+	ldmia	sp!,{r4-r6,pc}
+.size	bsaes_dec_key_convert,.-bsaes_dec_key_convert
+
+.globl	bsaes_decrypt_128
+.type	bsaes_decrypt_128,%function
+.align	4
+bsaes_decrypt_128:
+	stmdb	sp!,{r4-r6,lr}
+	vstmdb	sp!,{d8-d15}		@ ABI specification says so
+.Ldec128_loop:
+	vld1.8	{@XMM[0]-@XMM[1]}, [$inp]!	@ load input
+	vld1.8	{@XMM[2]-@XMM[3]}, [$inp]!
+	mov	r4,$key				@ pass the key
+	vld1.8	{@XMM[4]-@XMM[5]}, [$inp]!
+	mov	r5,#10				@ pass rounds
+	vld1.8	{@XMM[6]-@XMM[7]}, [$inp]!
+
+	bl	_bsaes_decrypt8
+
+	vst1.8	{@XMM[0]-@XMM[1]}, [$out]!	@ write output
+	vst1.8	{@XMM[6]}, [$out]!
+	vst1.8	{@XMM[4]}, [$out]!
+	vst1.8	{@XMM[2]}, [$out]!
+	vst1.8	{@XMM[7]}, [$out]!
+	vst1.8	{@XMM[3]}, [$out]!
+	subs	$len,$len,#0x80
+	vst1.8	{@XMM[5]}, [$out]!
+	bhi	.Ldec128_loop
+
+	vldmia	sp!,{d8-d15}
+	ldmia	sp!,{r4-r6,pc}
+.size	bsaes_decrypt_128,.-bsaes_decrypt_128
+___
+}
+{
+my ($inp,$out,$len,$key, $ivp,$fp,$rounds)=map("r$_",(0..3,8..10));
+my ($keysched)=("sp");
+
+$code.=<<___;
+.extern AES_cbc_encrypt
+.extern AES_decrypt
+
+.global	bsaes_cbc_encrypt
+.type	bsaes_cbc_encrypt,%function
+.align	5
+bsaes_cbc_encrypt:
+#ifndef	__KERNEL__
+	cmp	$len, #128
+#ifndef	__thumb__
+	blo	AES_cbc_encrypt
+#else
+	bhs	1f
+	b	AES_cbc_encrypt
+1:
+#endif
+#endif
+
+	@ it is up to the caller to make sure we are called with enc == 0
+
+	mov	ip, sp
+	stmdb	sp!, {r4-r10, lr}
+	VFP_ABI_PUSH
+	ldr	$ivp, [ip]			@ IV is 1st arg on the stack
+	mov	$len, $len, lsr#4		@ len in 16 byte blocks
+	sub	sp, #0x10			@ scratch space to carry over the IV
+	mov	$fp, sp				@ save sp
+
+	ldr	$rounds, [$key, #240]		@ get # of rounds
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	@ allocate the key schedule on the stack
+	sub	r12, sp, $rounds, lsl#7		@ 128 bytes per inner round key
+	add	r12, #`128-32`			@ sifze of bit-slices key schedule
+
+	@ populate the key schedule
+	mov	r4, $key			@ pass key
+	mov	r5, $rounds			@ pass # of rounds
+	mov	sp, r12				@ sp is $keysched
+	bl	_bsaes_key_convert
+	vldmia	$keysched, {@XMM[6]}
+	vstmia	r12,  {@XMM[15]}		@ save last round key
+	veor	@XMM[7], @XMM[7], @XMM[6]	@ fix up round 0 key
+	vstmia	$keysched, {@XMM[7]}
+#else
+	ldr	r12, [$key, #244]
+	eors	r12, #1
+	beq	0f
+
+	@ populate the key schedule
+	str	r12, [$key, #244]
+	mov	r4, $key			@ pass key
+	mov	r5, $rounds			@ pass # of rounds
+	add	r12, $key, #248			@ pass key schedule
+	bl	_bsaes_key_convert
+	add	r4, $key, #248
+	vldmia	r4, {@XMM[6]}
+	vstmia	r12, {@XMM[15]}			@ save last round key
+	veor	@XMM[7], @XMM[7], @XMM[6]	@ fix up round 0 key
+	vstmia	r4, {@XMM[7]}
+
+.align	2
+0:
+#endif
+
+	vld1.8	{@XMM[15]}, [$ivp]		@ load IV
+	b	.Lcbc_dec_loop
+
+.align	4
+.Lcbc_dec_loop:
+	subs	$len, $len, #0x8
+	bmi	.Lcbc_dec_loop_finish
+
+	vld1.8	{@XMM[0]-@XMM[1]}, [$inp]!	@ load input
+	vld1.8	{@XMM[2]-@XMM[3]}, [$inp]!
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	mov	r4, $keysched			@ pass the key
+#else
+	add	r4, $key, #248
+#endif
+	vld1.8	{@XMM[4]-@XMM[5]}, [$inp]!
+	mov	r5, $rounds
+	vld1.8	{@XMM[6]-@XMM[7]}, [$inp]
+	sub	$inp, $inp, #0x60
+	vstmia	$fp, {@XMM[15]}			@ put aside IV
+
+	bl	_bsaes_decrypt8
+
+	vldmia	$fp, {@XMM[14]}			@ reload IV
+	vld1.8	{@XMM[8]-@XMM[9]}, [$inp]!	@ reload input
+	veor	@XMM[0], @XMM[0], @XMM[14]	@ ^= IV
+	vld1.8	{@XMM[10]-@XMM[11]}, [$inp]!
+	veor	@XMM[1], @XMM[1], @XMM[8]
+	veor	@XMM[6], @XMM[6], @XMM[9]
+	vld1.8	{@XMM[12]-@XMM[13]}, [$inp]!
+	veor	@XMM[4], @XMM[4], @XMM[10]
+	veor	@XMM[2], @XMM[2], @XMM[11]
+	vld1.8	{@XMM[14]-@XMM[15]}, [$inp]!
+	veor	@XMM[7], @XMM[7], @XMM[12]
+	vst1.8	{@XMM[0]-@XMM[1]}, [$out]!	@ write output
+	veor	@XMM[3], @XMM[3], @XMM[13]
+	vst1.8	{@XMM[6]}, [$out]!
+	veor	@XMM[5], @XMM[5], @XMM[14]
+	vst1.8	{@XMM[4]}, [$out]!
+	vst1.8	{@XMM[2]}, [$out]!
+	vst1.8	{@XMM[7]}, [$out]!
+	vst1.8	{@XMM[3]}, [$out]!
+	vst1.8	{@XMM[5]}, [$out]!
+
+	b	.Lcbc_dec_loop
+
+.Lcbc_dec_loop_finish:
+	adds	$len, $len, #8
+	beq	.Lcbc_dec_done
+
+	vld1.8	{@XMM[0]}, [$inp]!		@ load input
+	cmp	$len, #2
+	blo	.Lcbc_dec_one
+	vld1.8	{@XMM[1]}, [$inp]!
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	mov	r4, $keysched			@ pass the key
+#else
+	add	r4, $key, #248
+#endif
+	mov	r5, $rounds
+	vstmia	$fp, {@XMM[15]}			@ put aside IV
+	beq	.Lcbc_dec_two
+	vld1.8	{@XMM[2]}, [$inp]!
+	cmp	$len, #4
+	blo	.Lcbc_dec_three
+	vld1.8	{@XMM[3]}, [$inp]!
+	beq	.Lcbc_dec_four
+	vld1.8	{@XMM[4]}, [$inp]!
+	cmp	$len, #6
+	blo	.Lcbc_dec_five
+	vld1.8	{@XMM[5]}, [$inp]!
+	beq	.Lcbc_dec_six
+	vld1.8	{@XMM[6]}, [$inp]!
+	sub	$inp, $inp, #0x70
+
+	bl	_bsaes_decrypt8
+
+	vldmia	$fp, {@XMM[14]}			@ reload IV
+	vld1.8	{@XMM[8]-@XMM[9]}, [$inp]!	@ reload input
+	veor	@XMM[0], @XMM[0], @XMM[14]	@ ^= IV
+	vld1.8	{@XMM[10]-@XMM[11]}, [$inp]!
+	veor	@XMM[1], @XMM[1], @XMM[8]
+	veor	@XMM[6], @XMM[6], @XMM[9]
+	vld1.8	{@XMM[12]-@XMM[13]}, [$inp]!
+	veor	@XMM[4], @XMM[4], @XMM[10]
+	veor	@XMM[2], @XMM[2], @XMM[11]
+	vld1.8	{@XMM[15]}, [$inp]!
+	veor	@XMM[7], @XMM[7], @XMM[12]
+	vst1.8	{@XMM[0]-@XMM[1]}, [$out]!	@ write output
+	veor	@XMM[3], @XMM[3], @XMM[13]
+	vst1.8	{@XMM[6]}, [$out]!
+	vst1.8	{@XMM[4]}, [$out]!
+	vst1.8	{@XMM[2]}, [$out]!
+	vst1.8	{@XMM[7]}, [$out]!
+	vst1.8	{@XMM[3]}, [$out]!
+	b	.Lcbc_dec_done
+.align	4
+.Lcbc_dec_six:
+	sub	$inp, $inp, #0x60
+	bl	_bsaes_decrypt8
+	vldmia	$fp,{@XMM[14]}			@ reload IV
+	vld1.8	{@XMM[8]-@XMM[9]}, [$inp]!	@ reload input
+	veor	@XMM[0], @XMM[0], @XMM[14]	@ ^= IV
+	vld1.8	{@XMM[10]-@XMM[11]}, [$inp]!
+	veor	@XMM[1], @XMM[1], @XMM[8]
+	veor	@XMM[6], @XMM[6], @XMM[9]
+	vld1.8	{@XMM[12]}, [$inp]!
+	veor	@XMM[4], @XMM[4], @XMM[10]
+	veor	@XMM[2], @XMM[2], @XMM[11]
+	vld1.8	{@XMM[15]}, [$inp]!
+	veor	@XMM[7], @XMM[7], @XMM[12]
+	vst1.8	{@XMM[0]-@XMM[1]}, [$out]!	@ write output
+	vst1.8	{@XMM[6]}, [$out]!
+	vst1.8	{@XMM[4]}, [$out]!
+	vst1.8	{@XMM[2]}, [$out]!
+	vst1.8	{@XMM[7]}, [$out]!
+	b	.Lcbc_dec_done
+.align	4
+.Lcbc_dec_five:
+	sub	$inp, $inp, #0x50
+	bl	_bsaes_decrypt8
+	vldmia	$fp, {@XMM[14]}			@ reload IV
+	vld1.8	{@XMM[8]-@XMM[9]}, [$inp]!	@ reload input
+	veor	@XMM[0], @XMM[0], @XMM[14]	@ ^= IV
+	vld1.8	{@XMM[10]-@XMM[11]}, [$inp]!
+	veor	@XMM[1], @XMM[1], @XMM[8]
+	veor	@XMM[6], @XMM[6], @XMM[9]
+	vld1.8	{@XMM[15]}, [$inp]!
+	veor	@XMM[4], @XMM[4], @XMM[10]
+	vst1.8	{@XMM[0]-@XMM[1]}, [$out]!	@ write output
+	veor	@XMM[2], @XMM[2], @XMM[11]
+	vst1.8	{@XMM[6]}, [$out]!
+	vst1.8	{@XMM[4]}, [$out]!
+	vst1.8	{@XMM[2]}, [$out]!
+	b	.Lcbc_dec_done
+.align	4
+.Lcbc_dec_four:
+	sub	$inp, $inp, #0x40
+	bl	_bsaes_decrypt8
+	vldmia	$fp, {@XMM[14]}			@ reload IV
+	vld1.8	{@XMM[8]-@XMM[9]}, [$inp]!	@ reload input
+	veor	@XMM[0], @XMM[0], @XMM[14]	@ ^= IV
+	vld1.8	{@XMM[10]}, [$inp]!
+	veor	@XMM[1], @XMM[1], @XMM[8]
+	veor	@XMM[6], @XMM[6], @XMM[9]
+	vld1.8	{@XMM[15]}, [$inp]!
+	veor	@XMM[4], @XMM[4], @XMM[10]
+	vst1.8	{@XMM[0]-@XMM[1]}, [$out]!	@ write output
+	vst1.8	{@XMM[6]}, [$out]!
+	vst1.8	{@XMM[4]}, [$out]!
+	b	.Lcbc_dec_done
+.align	4
+.Lcbc_dec_three:
+	sub	$inp, $inp, #0x30
+	bl	_bsaes_decrypt8
+	vldmia	$fp, {@XMM[14]}			@ reload IV
+	vld1.8	{@XMM[8]-@XMM[9]}, [$inp]!	@ reload input
+	veor	@XMM[0], @XMM[0], @XMM[14]	@ ^= IV
+	vld1.8	{@XMM[15]}, [$inp]!
+	veor	@XMM[1], @XMM[1], @XMM[8]
+	veor	@XMM[6], @XMM[6], @XMM[9]
+	vst1.8	{@XMM[0]-@XMM[1]}, [$out]!	@ write output
+	vst1.8	{@XMM[6]}, [$out]!
+	b	.Lcbc_dec_done
+.align	4
+.Lcbc_dec_two:
+	sub	$inp, $inp, #0x20
+	bl	_bsaes_decrypt8
+	vldmia	$fp, {@XMM[14]}			@ reload IV
+	vld1.8	{@XMM[8]}, [$inp]!		@ reload input
+	veor	@XMM[0], @XMM[0], @XMM[14]	@ ^= IV
+	vld1.8	{@XMM[15]}, [$inp]!		@ reload input
+	veor	@XMM[1], @XMM[1], @XMM[8]
+	vst1.8	{@XMM[0]-@XMM[1]}, [$out]!	@ write output
+	b	.Lcbc_dec_done
+.align	4
+.Lcbc_dec_one:
+	sub	$inp, $inp, #0x10
+	mov	$rounds, $out			@ save original out pointer
+	mov	$out, $fp			@ use the iv scratch space as out buffer
+	mov	r2, $key
+	vmov	@XMM[4],@XMM[15]		@ just in case ensure that IV
+	vmov	@XMM[5],@XMM[0]			@ and input are preserved
+	bl	AES_decrypt
+	vld1.8	{@XMM[0]}, [$fp,:64]		@ load result
+	veor	@XMM[0], @XMM[0], @XMM[4]	@ ^= IV
+	vmov	@XMM[15], @XMM[5]		@ @XMM[5] holds input
+	vst1.8	{@XMM[0]}, [$rounds]		@ write output
+
+.Lcbc_dec_done:
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	vmov.i32	q0, #0
+	vmov.i32	q1, #0
+.Lcbc_dec_bzero:				@ wipe key schedule [if any]
+	vstmia		$keysched!, {q0-q1}
+	cmp		$keysched, $fp
+	bne		.Lcbc_dec_bzero
+#endif
+
+	mov	sp, $fp
+	add	sp, #0x10			@ add sp,$fp,#0x10 is no good for thumb
+	vst1.8	{@XMM[15]}, [$ivp]		@ return IV
+	VFP_ABI_POP
+	ldmia	sp!, {r4-r10, pc}
+.size	bsaes_cbc_encrypt,.-bsaes_cbc_encrypt
+___
+}
+{
+my ($inp,$out,$len,$key, $ctr,$fp,$rounds)=(map("r$_",(0..3,8..10)));
+my $const = "r6";	# shared with _bsaes_encrypt8_alt
+my $keysched = "sp";
+
+$code.=<<___;
+.extern	AES_encrypt
+.global	bsaes_ctr32_encrypt_blocks
+.type	bsaes_ctr32_encrypt_blocks,%function
+.align	5
+bsaes_ctr32_encrypt_blocks:
+	cmp	$len, #8			@ use plain AES for
+	blo	.Lctr_enc_short			@ small sizes
+
+	mov	ip, sp
+	stmdb	sp!, {r4-r10, lr}
+	VFP_ABI_PUSH
+	ldr	$ctr, [ip]			@ ctr is 1st arg on the stack
+	sub	sp, sp, #0x10			@ scratch space to carry over the ctr
+	mov	$fp, sp				@ save sp
+
+	ldr	$rounds, [$key, #240]		@ get # of rounds
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	@ allocate the key schedule on the stack
+	sub	r12, sp, $rounds, lsl#7		@ 128 bytes per inner round key
+	add	r12, #`128-32`			@ size of bit-sliced key schedule
+
+	@ populate the key schedule
+	mov	r4, $key			@ pass key
+	mov	r5, $rounds			@ pass # of rounds
+	mov	sp, r12				@ sp is $keysched
+	bl	_bsaes_key_convert
+	veor	@XMM[7],@XMM[7],@XMM[15]	@ fix up last round key
+	vstmia	r12, {@XMM[7]}			@ save last round key
+
+	vld1.8	{@XMM[0]}, [$ctr]		@ load counter
+	add	$ctr, $const, #.LREVM0SR-.LM0	@ borrow $ctr
+	vldmia	$keysched, {@XMM[4]}		@ load round0 key
+#else
+	ldr	r12, [$key, #244]
+	eors	r12, #1
+	beq	0f
+
+	@ populate the key schedule
+	str	r12, [$key, #244]
+	mov	r4, $key			@ pass key
+	mov	r5, $rounds			@ pass # of rounds
+	add	r12, $key, #248			@ pass key schedule
+	bl	_bsaes_key_convert
+	veor	@XMM[7],@XMM[7],@XMM[15]	@ fix up last round key
+	vstmia	r12, {@XMM[7]}			@ save last round key
+
+.align	2
+0:	add	r12, $key, #248
+	vld1.8	{@XMM[0]}, [$ctr]		@ load counter
+	adrl	$ctr, .LREVM0SR			@ borrow $ctr
+	vldmia	r12, {@XMM[4]}			@ load round0 key
+	sub	sp, #0x10			@ place for adjusted round0 key
+#endif
+
+	vmov.i32	@XMM[8],#1		@ compose 1<<96
+	veor		@XMM[9],@XMM[9],@XMM[9]
+	vrev32.8	@XMM[0],@XMM[0]
+	vext.8		@XMM[8],@XMM[9],@XMM[8],#4
+	vrev32.8	@XMM[4],@XMM[4]
+	vadd.u32	@XMM[9],@XMM[8],@XMM[8]	@ compose 2<<96
+	vstmia	$keysched, {@XMM[4]}		@ save adjusted round0 key
+	b	.Lctr_enc_loop
+
+.align	4
+.Lctr_enc_loop:
+	vadd.u32	@XMM[10], @XMM[8], @XMM[9]	@ compose 3<<96
+	vadd.u32	@XMM[1], @XMM[0], @XMM[8]	@ +1
+	vadd.u32	@XMM[2], @XMM[0], @XMM[9]	@ +2
+	vadd.u32	@XMM[3], @XMM[0], @XMM[10]	@ +3
+	vadd.u32	@XMM[4], @XMM[1], @XMM[10]
+	vadd.u32	@XMM[5], @XMM[2], @XMM[10]
+	vadd.u32	@XMM[6], @XMM[3], @XMM[10]
+	vadd.u32	@XMM[7], @XMM[4], @XMM[10]
+	vadd.u32	@XMM[10], @XMM[5], @XMM[10]	@ next counter
+
+	@ Borrow prologue from _bsaes_encrypt8 to use the opportunity
+	@ to flip byte order in 32-bit counter
+
+	vldmia		$keysched, {@XMM[9]}		@ load round0 key
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, $keysched, #0x10		@ pass next round key
+#else
+	add		r4, $key, #`248+16`
+#endif
+	vldmia		$ctr, {@XMM[8]}			@ .LREVM0SR
+	mov		r5, $rounds			@ pass rounds
+	vstmia		$fp, {@XMM[10]}			@ save next counter
+	sub		$const, $ctr, #.LREVM0SR-.LSR	@ pass constants
+
+	bl		_bsaes_encrypt8_alt
+
+	subs		$len, $len, #8
+	blo		.Lctr_enc_loop_done
+
+	vld1.8		{@XMM[8]-@XMM[9]}, [$inp]!	@ load input
+	vld1.8		{@XMM[10]-@XMM[11]}, [$inp]!
+	veor		@XMM[0], @XMM[8]
+	veor		@XMM[1], @XMM[9]
+	vld1.8		{@XMM[12]-@XMM[13]}, [$inp]!
+	veor		@XMM[4], @XMM[10]
+	veor		@XMM[6], @XMM[11]
+	vld1.8		{@XMM[14]-@XMM[15]}, [$inp]!
+	veor		@XMM[3], @XMM[12]
+	vst1.8		{@XMM[0]-@XMM[1]}, [$out]!	@ write output
+	veor		@XMM[7], @XMM[13]
+	veor		@XMM[2], @XMM[14]
+	vst1.8		{@XMM[4]}, [$out]!
+	veor		@XMM[5], @XMM[15]
+	vst1.8		{@XMM[6]}, [$out]!
+	vmov.i32	@XMM[8], #1			@ compose 1<<96
+	vst1.8		{@XMM[3]}, [$out]!
+	veor		@XMM[9], @XMM[9], @XMM[9]
+	vst1.8		{@XMM[7]}, [$out]!
+	vext.8		@XMM[8], @XMM[9], @XMM[8], #4
+	vst1.8		{@XMM[2]}, [$out]!
+	vadd.u32	@XMM[9],@XMM[8],@XMM[8]		@ compose 2<<96
+	vst1.8		{@XMM[5]}, [$out]!
+	vldmia		$fp, {@XMM[0]}			@ load counter
+
+	bne		.Lctr_enc_loop
+	b		.Lctr_enc_done
+
+.align	4
+.Lctr_enc_loop_done:
+	add		$len, $len, #8
+	vld1.8		{@XMM[8]}, [$inp]!	@ load input
+	veor		@XMM[0], @XMM[8]
+	vst1.8		{@XMM[0]}, [$out]!	@ write output
+	cmp		$len, #2
+	blo		.Lctr_enc_done
+	vld1.8		{@XMM[9]}, [$inp]!
+	veor		@XMM[1], @XMM[9]
+	vst1.8		{@XMM[1]}, [$out]!
+	beq		.Lctr_enc_done
+	vld1.8		{@XMM[10]}, [$inp]!
+	veor		@XMM[4], @XMM[10]
+	vst1.8		{@XMM[4]}, [$out]!
+	cmp		$len, #4
+	blo		.Lctr_enc_done
+	vld1.8		{@XMM[11]}, [$inp]!
+	veor		@XMM[6], @XMM[11]
+	vst1.8		{@XMM[6]}, [$out]!
+	beq		.Lctr_enc_done
+	vld1.8		{@XMM[12]}, [$inp]!
+	veor		@XMM[3], @XMM[12]
+	vst1.8		{@XMM[3]}, [$out]!
+	cmp		$len, #6
+	blo		.Lctr_enc_done
+	vld1.8		{@XMM[13]}, [$inp]!
+	veor		@XMM[7], @XMM[13]
+	vst1.8		{@XMM[7]}, [$out]!
+	beq		.Lctr_enc_done
+	vld1.8		{@XMM[14]}, [$inp]
+	veor		@XMM[2], @XMM[14]
+	vst1.8		{@XMM[2]}, [$out]!
+
+.Lctr_enc_done:
+	vmov.i32	q0, #0
+	vmov.i32	q1, #0
+#ifndef	BSAES_ASM_EXTENDED_KEY
+.Lctr_enc_bzero:			@ wipe key schedule [if any]
+	vstmia		$keysched!, {q0-q1}
+	cmp		$keysched, $fp
+	bne		.Lctr_enc_bzero
+#else
+	vstmia		$keysched, {q0-q1}
+#endif
+
+	mov	sp, $fp
+	add	sp, #0x10		@ add sp,$fp,#0x10 is no good for thumb
+	VFP_ABI_POP
+	ldmia	sp!, {r4-r10, pc}	@ return
+
+.align	4
+.Lctr_enc_short:
+	ldr	ip, [sp]		@ ctr pointer is passed on stack
+	stmdb	sp!, {r4-r8, lr}
+
+	mov	r4, $inp		@ copy arguments
+	mov	r5, $out
+	mov	r6, $len
+	mov	r7, $key
+	ldr	r8, [ip, #12]		@ load counter LSW
+	vld1.8	{@XMM[1]}, [ip]		@ load whole counter value
+#ifdef __ARMEL__
+	rev	r8, r8
+#endif
+	sub	sp, sp, #0x10
+	vst1.8	{@XMM[1]}, [sp,:64]	@ copy counter value
+	sub	sp, sp, #0x10
+
+.Lctr_enc_short_loop:
+	add	r0, sp, #0x10		@ input counter value
+	mov	r1, sp			@ output on the stack
+	mov	r2, r7			@ key
+
+	bl	AES_encrypt
+
+	vld1.8	{@XMM[0]}, [r4]!	@ load input
+	vld1.8	{@XMM[1]}, [sp,:64]	@ load encrypted counter
+	add	r8, r8, #1
+#ifdef __ARMEL__
+	rev	r0, r8
+	str	r0, [sp, #0x1c]		@ next counter value
+#else
+	str	r8, [sp, #0x1c]		@ next counter value
+#endif
+	veor	@XMM[0],@XMM[0],@XMM[1]
+	vst1.8	{@XMM[0]}, [r5]!	@ store output
+	subs	r6, r6, #1
+	bne	.Lctr_enc_short_loop
+
+	vmov.i32	q0, #0
+	vmov.i32	q1, #0
+	vstmia		sp!, {q0-q1}
+
+	ldmia	sp!, {r4-r8, pc}
+.size	bsaes_ctr32_encrypt_blocks,.-bsaes_ctr32_encrypt_blocks
+___
+}
+{
+######################################################################
+# void bsaes_xts_[en|de]crypt(const char *inp,char *out,size_t len,
+#	const AES_KEY *key1, const AES_KEY *key2,
+#	const unsigned char iv[16]);
+#
+my ($inp,$out,$len,$key,$rounds,$magic,$fp)=(map("r$_",(7..10,1..3)));
+my $const="r6";		# returned by _bsaes_key_convert
+my $twmask=@XMM[5];
+my @T=@XMM[6..7];
+
+$code.=<<___;
+.globl	bsaes_xts_encrypt
+.type	bsaes_xts_encrypt,%function
+.align	4
+bsaes_xts_encrypt:
+	mov	ip, sp
+	stmdb	sp!, {r4-r10, lr}		@ 0x20
+	VFP_ABI_PUSH
+	mov	r6, sp				@ future $fp
+
+	mov	$inp, r0
+	mov	$out, r1
+	mov	$len, r2
+	mov	$key, r3
+
+	sub	r0, sp, #0x10			@ 0x10
+	bic	r0, #0xf			@ align at 16 bytes
+	mov	sp, r0
+
+#ifdef	XTS_CHAIN_TWEAK
+	ldr	r0, [ip]			@ pointer to input tweak
+#else
+	@ generate initial tweak
+	ldr	r0, [ip, #4]			@ iv[]
+	mov	r1, sp
+	ldr	r2, [ip, #0]			@ key2
+	bl	AES_encrypt
+	mov	r0,sp				@ pointer to initial tweak
+#endif
+
+	ldr	$rounds, [$key, #240]		@ get # of rounds
+	mov	$fp, r6
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	@ allocate the key schedule on the stack
+	sub	r12, sp, $rounds, lsl#7		@ 128 bytes per inner round key
+	@ add	r12, #`128-32`			@ size of bit-sliced key schedule
+	sub	r12, #`32+16`			@ place for tweak[9]
+
+	@ populate the key schedule
+	mov	r4, $key			@ pass key
+	mov	r5, $rounds			@ pass # of rounds
+	mov	sp, r12
+	add	r12, #0x90			@ pass key schedule
+	bl	_bsaes_key_convert
+	veor	@XMM[7], @XMM[7], @XMM[15]	@ fix up last round key
+	vstmia	r12, {@XMM[7]}			@ save last round key
+#else
+	ldr	r12, [$key, #244]
+	eors	r12, #1
+	beq	0f
+
+	str	r12, [$key, #244]
+	mov	r4, $key			@ pass key
+	mov	r5, $rounds			@ pass # of rounds
+	add	r12, $key, #248			@ pass key schedule
+	bl	_bsaes_key_convert
+	veor	@XMM[7], @XMM[7], @XMM[15]	@ fix up last round key
+	vstmia	r12, {@XMM[7]}
+
+.align	2
+0:	sub	sp, #0x90			@ place for tweak[9]
+#endif
+
+	vld1.8	{@XMM[8]}, [r0]			@ initial tweak
+	adr	$magic, .Lxts_magic
+
+	subs	$len, #0x80
+	blo	.Lxts_enc_short
+	b	.Lxts_enc_loop
+
+.align	4
+.Lxts_enc_loop:
+	vldmia		$magic, {$twmask}	@ load XTS magic
+	vshr.s64	@T[0], @XMM[8], #63
+	mov		r0, sp
+	vand		@T[0], @T[0], $twmask
+___
+for($i=9;$i<16;$i++) {
+$code.=<<___;
+	vadd.u64	@XMM[$i], @XMM[$i-1], @XMM[$i-1]
+	vst1.64		{@XMM[$i-1]}, [r0,:128]!
+	vswp		`&Dhi("@T[0]")`,`&Dlo("@T[0]")`
+	vshr.s64	@T[1], @XMM[$i], #63
+	veor		@XMM[$i], @XMM[$i], @T[0]
+	vand		@T[1], @T[1], $twmask
+___
+	@T=reverse(@T);
+
+$code.=<<___ if ($i>=10);
+	vld1.8		{@XMM[$i-10]}, [$inp]!
+___
+$code.=<<___ if ($i>=11);
+	veor		@XMM[$i-11], @XMM[$i-11], @XMM[$i-3]
+___
+}
+$code.=<<___;
+	vadd.u64	@XMM[8], @XMM[15], @XMM[15]
+	vst1.64		{@XMM[15]}, [r0,:128]!
+	vswp		`&Dhi("@T[0]")`,`&Dlo("@T[0]")`
+	veor		@XMM[8], @XMM[8], @T[0]
+	vst1.64		{@XMM[8]}, [r0,:128]		@ next round tweak
+
+	vld1.8		{@XMM[6]-@XMM[7]}, [$inp]!
+	veor		@XMM[5], @XMM[5], @XMM[13]
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, $key, #248			@ pass key schedule
+#endif
+	veor		@XMM[6], @XMM[6], @XMM[14]
+	mov		r5, $rounds			@ pass rounds
+	veor		@XMM[7], @XMM[7], @XMM[15]
+	mov		r0, sp
+
+	bl		_bsaes_encrypt8
+
+	vld1.64		{@XMM[ 8]-@XMM[ 9]}, [r0,:128]!
+	vld1.64		{@XMM[10]-@XMM[11]}, [r0,:128]!
+	veor		@XMM[0], @XMM[0], @XMM[ 8]
+	vld1.64		{@XMM[12]-@XMM[13]}, [r0,:128]!
+	veor		@XMM[1], @XMM[1], @XMM[ 9]
+	veor		@XMM[8], @XMM[4], @XMM[10]
+	vst1.8		{@XMM[0]-@XMM[1]}, [$out]!
+	veor		@XMM[9], @XMM[6], @XMM[11]
+	vld1.64		{@XMM[14]-@XMM[15]}, [r0,:128]!
+	veor		@XMM[10], @XMM[3], @XMM[12]
+	vst1.8		{@XMM[8]-@XMM[9]}, [$out]!
+	veor		@XMM[11], @XMM[7], @XMM[13]
+	veor		@XMM[12], @XMM[2], @XMM[14]
+	vst1.8		{@XMM[10]-@XMM[11]}, [$out]!
+	veor		@XMM[13], @XMM[5], @XMM[15]
+	vst1.8		{@XMM[12]-@XMM[13]}, [$out]!
+
+	vld1.64		{@XMM[8]}, [r0,:128]		@ next round tweak
+
+	subs		$len, #0x80
+	bpl		.Lxts_enc_loop
+
+.Lxts_enc_short:
+	adds		$len, #0x70
+	bmi		.Lxts_enc_done
+
+	vldmia		$magic, {$twmask}	@ load XTS magic
+	vshr.s64	@T[0], @XMM[8], #63
+	mov		r0, sp
+	vand		@T[0], @T[0], $twmask
+___
+for($i=9;$i<16;$i++) {
+$code.=<<___;
+	vadd.u64	@XMM[$i], @XMM[$i-1], @XMM[$i-1]
+	vst1.64		{@XMM[$i-1]}, [r0,:128]!
+	vswp		`&Dhi("@T[0]")`,`&Dlo("@T[0]")`
+	vshr.s64	@T[1], @XMM[$i], #63
+	veor		@XMM[$i], @XMM[$i], @T[0]
+	vand		@T[1], @T[1], $twmask
+___
+	@T=reverse(@T);
+
+$code.=<<___ if ($i>=10);
+	vld1.8		{@XMM[$i-10]}, [$inp]!
+	subs		$len, #0x10
+	bmi		.Lxts_enc_`$i-9`
+___
+$code.=<<___ if ($i>=11);
+	veor		@XMM[$i-11], @XMM[$i-11], @XMM[$i-3]
+___
+}
+$code.=<<___;
+	sub		$len, #0x10
+	vst1.64		{@XMM[15]}, [r0,:128]		@ next round tweak
+
+	vld1.8		{@XMM[6]}, [$inp]!
+	veor		@XMM[5], @XMM[5], @XMM[13]
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, $key, #248			@ pass key schedule
+#endif
+	veor		@XMM[6], @XMM[6], @XMM[14]
+	mov		r5, $rounds			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_encrypt8
+
+	vld1.64		{@XMM[ 8]-@XMM[ 9]}, [r0,:128]!
+	vld1.64		{@XMM[10]-@XMM[11]}, [r0,:128]!
+	veor		@XMM[0], @XMM[0], @XMM[ 8]
+	vld1.64		{@XMM[12]-@XMM[13]}, [r0,:128]!
+	veor		@XMM[1], @XMM[1], @XMM[ 9]
+	veor		@XMM[8], @XMM[4], @XMM[10]
+	vst1.8		{@XMM[0]-@XMM[1]}, [$out]!
+	veor		@XMM[9], @XMM[6], @XMM[11]
+	vld1.64		{@XMM[14]}, [r0,:128]!
+	veor		@XMM[10], @XMM[3], @XMM[12]
+	vst1.8		{@XMM[8]-@XMM[9]}, [$out]!
+	veor		@XMM[11], @XMM[7], @XMM[13]
+	veor		@XMM[12], @XMM[2], @XMM[14]
+	vst1.8		{@XMM[10]-@XMM[11]}, [$out]!
+	vst1.8		{@XMM[12]}, [$out]!
+
+	vld1.64		{@XMM[8]}, [r0,:128]		@ next round tweak
+	b		.Lxts_enc_done
+.align	4
+.Lxts_enc_6:
+	vst1.64		{@XMM[14]}, [r0,:128]		@ next round tweak
+
+	veor		@XMM[4], @XMM[4], @XMM[12]
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, $key, #248			@ pass key schedule
+#endif
+	veor		@XMM[5], @XMM[5], @XMM[13]
+	mov		r5, $rounds			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_encrypt8
+
+	vld1.64		{@XMM[ 8]-@XMM[ 9]}, [r0,:128]!
+	vld1.64		{@XMM[10]-@XMM[11]}, [r0,:128]!
+	veor		@XMM[0], @XMM[0], @XMM[ 8]
+	vld1.64		{@XMM[12]-@XMM[13]}, [r0,:128]!
+	veor		@XMM[1], @XMM[1], @XMM[ 9]
+	veor		@XMM[8], @XMM[4], @XMM[10]
+	vst1.8		{@XMM[0]-@XMM[1]}, [$out]!
+	veor		@XMM[9], @XMM[6], @XMM[11]
+	veor		@XMM[10], @XMM[3], @XMM[12]
+	vst1.8		{@XMM[8]-@XMM[9]}, [$out]!
+	veor		@XMM[11], @XMM[7], @XMM[13]
+	vst1.8		{@XMM[10]-@XMM[11]}, [$out]!
+
+	vld1.64		{@XMM[8]}, [r0,:128]		@ next round tweak
+	b		.Lxts_enc_done
+
+@ put this in range for both ARM and Thumb mode adr instructions
+.align	5
+.Lxts_magic:
+	.quad	1, 0x87
+
+.align	5
+.Lxts_enc_5:
+	vst1.64		{@XMM[13]}, [r0,:128]		@ next round tweak
+
+	veor		@XMM[3], @XMM[3], @XMM[11]
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, $key, #248			@ pass key schedule
+#endif
+	veor		@XMM[4], @XMM[4], @XMM[12]
+	mov		r5, $rounds			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_encrypt8
+
+	vld1.64		{@XMM[ 8]-@XMM[ 9]}, [r0,:128]!
+	vld1.64		{@XMM[10]-@XMM[11]}, [r0,:128]!
+	veor		@XMM[0], @XMM[0], @XMM[ 8]
+	vld1.64		{@XMM[12]}, [r0,:128]!
+	veor		@XMM[1], @XMM[1], @XMM[ 9]
+	veor		@XMM[8], @XMM[4], @XMM[10]
+	vst1.8		{@XMM[0]-@XMM[1]}, [$out]!
+	veor		@XMM[9], @XMM[6], @XMM[11]
+	veor		@XMM[10], @XMM[3], @XMM[12]
+	vst1.8		{@XMM[8]-@XMM[9]}, [$out]!
+	vst1.8		{@XMM[10]}, [$out]!
+
+	vld1.64		{@XMM[8]}, [r0,:128]		@ next round tweak
+	b		.Lxts_enc_done
+.align	4
+.Lxts_enc_4:
+	vst1.64		{@XMM[12]}, [r0,:128]		@ next round tweak
+
+	veor		@XMM[2], @XMM[2], @XMM[10]
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, $key, #248			@ pass key schedule
+#endif
+	veor		@XMM[3], @XMM[3], @XMM[11]
+	mov		r5, $rounds			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_encrypt8
+
+	vld1.64		{@XMM[ 8]-@XMM[ 9]}, [r0,:128]!
+	vld1.64		{@XMM[10]-@XMM[11]}, [r0,:128]!
+	veor		@XMM[0], @XMM[0], @XMM[ 8]
+	veor		@XMM[1], @XMM[1], @XMM[ 9]
+	veor		@XMM[8], @XMM[4], @XMM[10]
+	vst1.8		{@XMM[0]-@XMM[1]}, [$out]!
+	veor		@XMM[9], @XMM[6], @XMM[11]
+	vst1.8		{@XMM[8]-@XMM[9]}, [$out]!
+
+	vld1.64		{@XMM[8]}, [r0,:128]		@ next round tweak
+	b		.Lxts_enc_done
+.align	4
+.Lxts_enc_3:
+	vst1.64		{@XMM[11]}, [r0,:128]		@ next round tweak
+
+	veor		@XMM[1], @XMM[1], @XMM[9]
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, $key, #248			@ pass key schedule
+#endif
+	veor		@XMM[2], @XMM[2], @XMM[10]
+	mov		r5, $rounds			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_encrypt8
+
+	vld1.64		{@XMM[8]-@XMM[9]}, [r0,:128]!
+	vld1.64		{@XMM[10]}, [r0,:128]!
+	veor		@XMM[0], @XMM[0], @XMM[ 8]
+	veor		@XMM[1], @XMM[1], @XMM[ 9]
+	veor		@XMM[8], @XMM[4], @XMM[10]
+	vst1.8		{@XMM[0]-@XMM[1]}, [$out]!
+	vst1.8		{@XMM[8]}, [$out]!
+
+	vld1.64		{@XMM[8]}, [r0,:128]		@ next round tweak
+	b		.Lxts_enc_done
+.align	4
+.Lxts_enc_2:
+	vst1.64		{@XMM[10]}, [r0,:128]		@ next round tweak
+
+	veor		@XMM[0], @XMM[0], @XMM[8]
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, $key, #248			@ pass key schedule
+#endif
+	veor		@XMM[1], @XMM[1], @XMM[9]
+	mov		r5, $rounds			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_encrypt8
+
+	vld1.64		{@XMM[8]-@XMM[9]}, [r0,:128]!
+	veor		@XMM[0], @XMM[0], @XMM[ 8]
+	veor		@XMM[1], @XMM[1], @XMM[ 9]
+	vst1.8		{@XMM[0]-@XMM[1]}, [$out]!
+
+	vld1.64		{@XMM[8]}, [r0,:128]		@ next round tweak
+	b		.Lxts_enc_done
+.align	4
+.Lxts_enc_1:
+	mov		r0, sp
+	veor		@XMM[0], @XMM[8]
+	mov		r1, sp
+	vst1.8		{@XMM[0]}, [sp,:128]
+	mov		r2, $key
+	mov		r4, $fp				@ preserve fp
+
+	bl		AES_encrypt
+
+	vld1.8		{@XMM[0]}, [sp,:128]
+	veor		@XMM[0], @XMM[0], @XMM[8]
+	vst1.8		{@XMM[0]}, [$out]!
+	mov		$fp, r4
+
+	vmov		@XMM[8], @XMM[9]		@ next round tweak
+
+.Lxts_enc_done:
+#ifndef	XTS_CHAIN_TWEAK
+	adds		$len, #0x10
+	beq		.Lxts_enc_ret
+	sub		r6, $out, #0x10
+
+.Lxts_enc_steal:
+	ldrb		r0, [$inp], #1
+	ldrb		r1, [$out, #-0x10]
+	strb		r0, [$out, #-0x10]
+	strb		r1, [$out], #1
+
+	subs		$len, #1
+	bhi		.Lxts_enc_steal
+
+	vld1.8		{@XMM[0]}, [r6]
+	mov		r0, sp
+	veor		@XMM[0], @XMM[0], @XMM[8]
+	mov		r1, sp
+	vst1.8		{@XMM[0]}, [sp,:128]
+	mov		r2, $key
+	mov		r4, $fp			@ preserve fp
+
+	bl		AES_encrypt
+
+	vld1.8		{@XMM[0]}, [sp,:128]
+	veor		@XMM[0], @XMM[0], @XMM[8]
+	vst1.8		{@XMM[0]}, [r6]
+	mov		$fp, r4
+#endif
+
+.Lxts_enc_ret:
+	bic		r0, $fp, #0xf
+	vmov.i32	q0, #0
+	vmov.i32	q1, #0
+#ifdef	XTS_CHAIN_TWEAK
+	ldr		r1, [$fp, #0x20+VFP_ABI_FRAME]	@ chain tweak
+#endif
+.Lxts_enc_bzero:				@ wipe key schedule [if any]
+	vstmia		sp!, {q0-q1}
+	cmp		sp, r0
+	bne		.Lxts_enc_bzero
+
+	mov		sp, $fp
+#ifdef	XTS_CHAIN_TWEAK
+	vst1.8		{@XMM[8]}, [r1]
+#endif
+	VFP_ABI_POP
+	ldmia		sp!, {r4-r10, pc}	@ return
+
+.size	bsaes_xts_encrypt,.-bsaes_xts_encrypt
+
+.globl	bsaes_xts_decrypt
+.type	bsaes_xts_decrypt,%function
+.align	4
+bsaes_xts_decrypt:
+	mov	ip, sp
+	stmdb	sp!, {r4-r10, lr}		@ 0x20
+	VFP_ABI_PUSH
+	mov	r6, sp				@ future $fp
+
+	mov	$inp, r0
+	mov	$out, r1
+	mov	$len, r2
+	mov	$key, r3
+
+	sub	r0, sp, #0x10			@ 0x10
+	bic	r0, #0xf			@ align at 16 bytes
+	mov	sp, r0
+
+#ifdef	XTS_CHAIN_TWEAK
+	ldr	r0, [ip]			@ pointer to input tweak
+#else
+	@ generate initial tweak
+	ldr	r0, [ip, #4]			@ iv[]
+	mov	r1, sp
+	ldr	r2, [ip, #0]			@ key2
+	bl	AES_encrypt
+	mov	r0, sp				@ pointer to initial tweak
+#endif
+
+	ldr	$rounds, [$key, #240]		@ get # of rounds
+	mov	$fp, r6
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	@ allocate the key schedule on the stack
+	sub	r12, sp, $rounds, lsl#7		@ 128 bytes per inner round key
+	@ add	r12, #`128-32`			@ size of bit-sliced key schedule
+	sub	r12, #`32+16`			@ place for tweak[9]
+
+	@ populate the key schedule
+	mov	r4, $key			@ pass key
+	mov	r5, $rounds			@ pass # of rounds
+	mov	sp, r12
+	add	r12, #0x90			@ pass key schedule
+	bl	_bsaes_key_convert
+	add	r4, sp, #0x90
+	vldmia	r4, {@XMM[6]}
+	vstmia	r12,  {@XMM[15]}		@ save last round key
+	veor	@XMM[7], @XMM[7], @XMM[6]	@ fix up round 0 key
+	vstmia	r4, {@XMM[7]}
+#else
+	ldr	r12, [$key, #244]
+	eors	r12, #1
+	beq	0f
+
+	str	r12, [$key, #244]
+	mov	r4, $key			@ pass key
+	mov	r5, $rounds			@ pass # of rounds
+	add	r12, $key, #248			@ pass key schedule
+	bl	_bsaes_key_convert
+	add	r4, $key, #248
+	vldmia	r4, {@XMM[6]}
+	vstmia	r12,  {@XMM[15]}		@ save last round key
+	veor	@XMM[7], @XMM[7], @XMM[6]	@ fix up round 0 key
+	vstmia	r4, {@XMM[7]}
+
+.align	2
+0:	sub	sp, #0x90			@ place for tweak[9]
+#endif
+	vld1.8	{@XMM[8]}, [r0]			@ initial tweak
+	adr	$magic, .Lxts_magic
+
+	tst	$len, #0xf			@ if not multiple of 16
+	it	ne				@ Thumb2 thing, sanity check in ARM
+	subne	$len, #0x10			@ subtract another 16 bytes
+	subs	$len, #0x80
+
+	blo	.Lxts_dec_short
+	b	.Lxts_dec_loop
+
+.align	4
+.Lxts_dec_loop:
+	vldmia		$magic, {$twmask}	@ load XTS magic
+	vshr.s64	@T[0], @XMM[8], #63
+	mov		r0, sp
+	vand		@T[0], @T[0], $twmask
+___
+for($i=9;$i<16;$i++) {
+$code.=<<___;
+	vadd.u64	@XMM[$i], @XMM[$i-1], @XMM[$i-1]
+	vst1.64		{@XMM[$i-1]}, [r0,:128]!
+	vswp		`&Dhi("@T[0]")`,`&Dlo("@T[0]")`
+	vshr.s64	@T[1], @XMM[$i], #63
+	veor		@XMM[$i], @XMM[$i], @T[0]
+	vand		@T[1], @T[1], $twmask
+___
+	@T=reverse(@T);
+
+$code.=<<___ if ($i>=10);
+	vld1.8		{@XMM[$i-10]}, [$inp]!
+___
+$code.=<<___ if ($i>=11);
+	veor		@XMM[$i-11], @XMM[$i-11], @XMM[$i-3]
+___
+}
+$code.=<<___;
+	vadd.u64	@XMM[8], @XMM[15], @XMM[15]
+	vst1.64		{@XMM[15]}, [r0,:128]!
+	vswp		`&Dhi("@T[0]")`,`&Dlo("@T[0]")`
+	veor		@XMM[8], @XMM[8], @T[0]
+	vst1.64		{@XMM[8]}, [r0,:128]		@ next round tweak
+
+	vld1.8		{@XMM[6]-@XMM[7]}, [$inp]!
+	veor		@XMM[5], @XMM[5], @XMM[13]
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, $key, #248			@ pass key schedule
+#endif
+	veor		@XMM[6], @XMM[6], @XMM[14]
+	mov		r5, $rounds			@ pass rounds
+	veor		@XMM[7], @XMM[7], @XMM[15]
+	mov		r0, sp
+
+	bl		_bsaes_decrypt8
+
+	vld1.64		{@XMM[ 8]-@XMM[ 9]}, [r0,:128]!
+	vld1.64		{@XMM[10]-@XMM[11]}, [r0,:128]!
+	veor		@XMM[0], @XMM[0], @XMM[ 8]
+	vld1.64		{@XMM[12]-@XMM[13]}, [r0,:128]!
+	veor		@XMM[1], @XMM[1], @XMM[ 9]
+	veor		@XMM[8], @XMM[6], @XMM[10]
+	vst1.8		{@XMM[0]-@XMM[1]}, [$out]!
+	veor		@XMM[9], @XMM[4], @XMM[11]
+	vld1.64		{@XMM[14]-@XMM[15]}, [r0,:128]!
+	veor		@XMM[10], @XMM[2], @XMM[12]
+	vst1.8		{@XMM[8]-@XMM[9]}, [$out]!
+	veor		@XMM[11], @XMM[7], @XMM[13]
+	veor		@XMM[12], @XMM[3], @XMM[14]
+	vst1.8		{@XMM[10]-@XMM[11]}, [$out]!
+	veor		@XMM[13], @XMM[5], @XMM[15]
+	vst1.8		{@XMM[12]-@XMM[13]}, [$out]!
+
+	vld1.64		{@XMM[8]}, [r0,:128]		@ next round tweak
+
+	subs		$len, #0x80
+	bpl		.Lxts_dec_loop
+
+.Lxts_dec_short:
+	adds		$len, #0x70
+	bmi		.Lxts_dec_done
+
+	vldmia		$magic, {$twmask}	@ load XTS magic
+	vshr.s64	@T[0], @XMM[8], #63
+	mov		r0, sp
+	vand		@T[0], @T[0], $twmask
+___
+for($i=9;$i<16;$i++) {
+$code.=<<___;
+	vadd.u64	@XMM[$i], @XMM[$i-1], @XMM[$i-1]
+	vst1.64		{@XMM[$i-1]}, [r0,:128]!
+	vswp		`&Dhi("@T[0]")`,`&Dlo("@T[0]")`
+	vshr.s64	@T[1], @XMM[$i], #63
+	veor		@XMM[$i], @XMM[$i], @T[0]
+	vand		@T[1], @T[1], $twmask
+___
+	@T=reverse(@T);
+
+$code.=<<___ if ($i>=10);
+	vld1.8		{@XMM[$i-10]}, [$inp]!
+	subs		$len, #0x10
+	bmi		.Lxts_dec_`$i-9`
+___
+$code.=<<___ if ($i>=11);
+	veor		@XMM[$i-11], @XMM[$i-11], @XMM[$i-3]
+___
+}
+$code.=<<___;
+	sub		$len, #0x10
+	vst1.64		{@XMM[15]}, [r0,:128]		@ next round tweak
+
+	vld1.8		{@XMM[6]}, [$inp]!
+	veor		@XMM[5], @XMM[5], @XMM[13]
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, $key, #248			@ pass key schedule
+#endif
+	veor		@XMM[6], @XMM[6], @XMM[14]
+	mov		r5, $rounds			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_decrypt8
+
+	vld1.64		{@XMM[ 8]-@XMM[ 9]}, [r0,:128]!
+	vld1.64		{@XMM[10]-@XMM[11]}, [r0,:128]!
+	veor		@XMM[0], @XMM[0], @XMM[ 8]
+	vld1.64		{@XMM[12]-@XMM[13]}, [r0,:128]!
+	veor		@XMM[1], @XMM[1], @XMM[ 9]
+	veor		@XMM[8], @XMM[6], @XMM[10]
+	vst1.8		{@XMM[0]-@XMM[1]}, [$out]!
+	veor		@XMM[9], @XMM[4], @XMM[11]
+	vld1.64		{@XMM[14]}, [r0,:128]!
+	veor		@XMM[10], @XMM[2], @XMM[12]
+	vst1.8		{@XMM[8]-@XMM[9]}, [$out]!
+	veor		@XMM[11], @XMM[7], @XMM[13]
+	veor		@XMM[12], @XMM[3], @XMM[14]
+	vst1.8		{@XMM[10]-@XMM[11]}, [$out]!
+	vst1.8		{@XMM[12]}, [$out]!
+
+	vld1.64		{@XMM[8]}, [r0,:128]		@ next round tweak
+	b		.Lxts_dec_done
+.align	4
+.Lxts_dec_6:
+	vst1.64		{@XMM[14]}, [r0,:128]		@ next round tweak
+
+	veor		@XMM[4], @XMM[4], @XMM[12]
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, $key, #248			@ pass key schedule
+#endif
+	veor		@XMM[5], @XMM[5], @XMM[13]
+	mov		r5, $rounds			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_decrypt8
+
+	vld1.64		{@XMM[ 8]-@XMM[ 9]}, [r0,:128]!
+	vld1.64		{@XMM[10]-@XMM[11]}, [r0,:128]!
+	veor		@XMM[0], @XMM[0], @XMM[ 8]
+	vld1.64		{@XMM[12]-@XMM[13]}, [r0,:128]!
+	veor		@XMM[1], @XMM[1], @XMM[ 9]
+	veor		@XMM[8], @XMM[6], @XMM[10]
+	vst1.8		{@XMM[0]-@XMM[1]}, [$out]!
+	veor		@XMM[9], @XMM[4], @XMM[11]
+	veor		@XMM[10], @XMM[2], @XMM[12]
+	vst1.8		{@XMM[8]-@XMM[9]}, [$out]!
+	veor		@XMM[11], @XMM[7], @XMM[13]
+	vst1.8		{@XMM[10]-@XMM[11]}, [$out]!
+
+	vld1.64		{@XMM[8]}, [r0,:128]		@ next round tweak
+	b		.Lxts_dec_done
+.align	4
+.Lxts_dec_5:
+	vst1.64		{@XMM[13]}, [r0,:128]		@ next round tweak
+
+	veor		@XMM[3], @XMM[3], @XMM[11]
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, $key, #248			@ pass key schedule
+#endif
+	veor		@XMM[4], @XMM[4], @XMM[12]
+	mov		r5, $rounds			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_decrypt8
+
+	vld1.64		{@XMM[ 8]-@XMM[ 9]}, [r0,:128]!
+	vld1.64		{@XMM[10]-@XMM[11]}, [r0,:128]!
+	veor		@XMM[0], @XMM[0], @XMM[ 8]
+	vld1.64		{@XMM[12]}, [r0,:128]!
+	veor		@XMM[1], @XMM[1], @XMM[ 9]
+	veor		@XMM[8], @XMM[6], @XMM[10]
+	vst1.8		{@XMM[0]-@XMM[1]}, [$out]!
+	veor		@XMM[9], @XMM[4], @XMM[11]
+	veor		@XMM[10], @XMM[2], @XMM[12]
+	vst1.8		{@XMM[8]-@XMM[9]}, [$out]!
+	vst1.8		{@XMM[10]}, [$out]!
+
+	vld1.64		{@XMM[8]}, [r0,:128]		@ next round tweak
+	b		.Lxts_dec_done
+.align	4
+.Lxts_dec_4:
+	vst1.64		{@XMM[12]}, [r0,:128]		@ next round tweak
+
+	veor		@XMM[2], @XMM[2], @XMM[10]
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, $key, #248			@ pass key schedule
+#endif
+	veor		@XMM[3], @XMM[3], @XMM[11]
+	mov		r5, $rounds			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_decrypt8
+
+	vld1.64		{@XMM[ 8]-@XMM[ 9]}, [r0,:128]!
+	vld1.64		{@XMM[10]-@XMM[11]}, [r0,:128]!
+	veor		@XMM[0], @XMM[0], @XMM[ 8]
+	veor		@XMM[1], @XMM[1], @XMM[ 9]
+	veor		@XMM[8], @XMM[6], @XMM[10]
+	vst1.8		{@XMM[0]-@XMM[1]}, [$out]!
+	veor		@XMM[9], @XMM[4], @XMM[11]
+	vst1.8		{@XMM[8]-@XMM[9]}, [$out]!
+
+	vld1.64		{@XMM[8]}, [r0,:128]		@ next round tweak
+	b		.Lxts_dec_done
+.align	4
+.Lxts_dec_3:
+	vst1.64		{@XMM[11]}, [r0,:128]		@ next round tweak
+
+	veor		@XMM[1], @XMM[1], @XMM[9]
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, $key, #248			@ pass key schedule
+#endif
+	veor		@XMM[2], @XMM[2], @XMM[10]
+	mov		r5, $rounds			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_decrypt8
+
+	vld1.64		{@XMM[8]-@XMM[9]}, [r0,:128]!
+	vld1.64		{@XMM[10]}, [r0,:128]!
+	veor		@XMM[0], @XMM[0], @XMM[ 8]
+	veor		@XMM[1], @XMM[1], @XMM[ 9]
+	veor		@XMM[8], @XMM[6], @XMM[10]
+	vst1.8		{@XMM[0]-@XMM[1]}, [$out]!
+	vst1.8		{@XMM[8]}, [$out]!
+
+	vld1.64		{@XMM[8]}, [r0,:128]		@ next round tweak
+	b		.Lxts_dec_done
+.align	4
+.Lxts_dec_2:
+	vst1.64		{@XMM[10]}, [r0,:128]		@ next round tweak
+
+	veor		@XMM[0], @XMM[0], @XMM[8]
+#ifndef	BSAES_ASM_EXTENDED_KEY
+	add		r4, sp, #0x90			@ pass key schedule
+#else
+	add		r4, $key, #248			@ pass key schedule
+#endif
+	veor		@XMM[1], @XMM[1], @XMM[9]
+	mov		r5, $rounds			@ pass rounds
+	mov		r0, sp
+
+	bl		_bsaes_decrypt8
+
+	vld1.64		{@XMM[8]-@XMM[9]}, [r0,:128]!
+	veor		@XMM[0], @XMM[0], @XMM[ 8]
+	veor		@XMM[1], @XMM[1], @XMM[ 9]
+	vst1.8		{@XMM[0]-@XMM[1]}, [$out]!
+
+	vld1.64		{@XMM[8]}, [r0,:128]		@ next round tweak
+	b		.Lxts_dec_done
+.align	4
+.Lxts_dec_1:
+	mov		r0, sp
+	veor		@XMM[0], @XMM[8]
+	mov		r1, sp
+	vst1.8		{@XMM[0]}, [sp,:128]
+	mov		r2, $key
+	mov		r4, $fp				@ preserve fp
+	mov		r5, $magic			@ preserve magic
+
+	bl		AES_decrypt
+
+	vld1.8		{@XMM[0]}, [sp,:128]
+	veor		@XMM[0], @XMM[0], @XMM[8]
+	vst1.8		{@XMM[0]}, [$out]!
+	mov		$fp, r4
+	mov		$magic, r5
+
+	vmov		@XMM[8], @XMM[9]		@ next round tweak
+
+.Lxts_dec_done:
+#ifndef	XTS_CHAIN_TWEAK
+	adds		$len, #0x10
+	beq		.Lxts_dec_ret
+
+	@ calculate one round of extra tweak for the stolen ciphertext
+	vldmia		$magic, {$twmask}
+	vshr.s64	@XMM[6], @XMM[8], #63
+	vand		@XMM[6], @XMM[6], $twmask
+	vadd.u64	@XMM[9], @XMM[8], @XMM[8]
+	vswp		`&Dhi("@XMM[6]")`,`&Dlo("@XMM[6]")`
+	veor		@XMM[9], @XMM[9], @XMM[6]
+
+	@ perform the final decryption with the last tweak value
+	vld1.8		{@XMM[0]}, [$inp]!
+	mov		r0, sp
+	veor		@XMM[0], @XMM[0], @XMM[9]
+	mov		r1, sp
+	vst1.8		{@XMM[0]}, [sp,:128]
+	mov		r2, $key
+	mov		r4, $fp			@ preserve fp
+
+	bl		AES_decrypt
+
+	vld1.8		{@XMM[0]}, [sp,:128]
+	veor		@XMM[0], @XMM[0], @XMM[9]
+	vst1.8		{@XMM[0]}, [$out]
+
+	mov		r6, $out
+.Lxts_dec_steal:
+	ldrb		r1, [$out]
+	ldrb		r0, [$inp], #1
+	strb		r1, [$out, #0x10]
+	strb		r0, [$out], #1
+
+	subs		$len, #1
+	bhi		.Lxts_dec_steal
+
+	vld1.8		{@XMM[0]}, [r6]
+	mov		r0, sp
+	veor		@XMM[0], @XMM[8]
+	mov		r1, sp
+	vst1.8		{@XMM[0]}, [sp,:128]
+	mov		r2, $key
+
+	bl		AES_decrypt
+
+	vld1.8		{@XMM[0]}, [sp,:128]
+	veor		@XMM[0], @XMM[0], @XMM[8]
+	vst1.8		{@XMM[0]}, [r6]
+	mov		$fp, r4
+#endif
+
+.Lxts_dec_ret:
+	bic		r0, $fp, #0xf
+	vmov.i32	q0, #0
+	vmov.i32	q1, #0
+#ifdef	XTS_CHAIN_TWEAK
+	ldr		r1, [$fp, #0x20+VFP_ABI_FRAME]	@ chain tweak
+#endif
+.Lxts_dec_bzero:				@ wipe key schedule [if any]
+	vstmia		sp!, {q0-q1}
+	cmp		sp, r0
+	bne		.Lxts_dec_bzero
+
+	mov		sp, $fp
+#ifdef	XTS_CHAIN_TWEAK
+	vst1.8		{@XMM[8]}, [r1]
+#endif
+	VFP_ABI_POP
+	ldmia		sp!, {r4-r10, pc}	@ return
+
+.size	bsaes_xts_decrypt,.-bsaes_xts_decrypt
+___
+}
+$code.=<<___;
+#endif
+___
+
+$code =~ s/\`([^\`]*)\`/eval($1)/gem;
+
+open SELF,$0;
+while(<SELF>) {
+	next if (/^#!/);
+        last if (!s/^#/@/ and !/^$/);
+        print;
+}
+close SELF;
+
+print $code;
+
+close STDOUT;
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 69ce573f1224..71f337aefa39 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -776,6 +776,22 @@ config CRYPTO_AES_ARM
 
 	  See <http://csrc.nist.gov/encryption/aes/> for more information.
 
+config CRYPTO_AES_ARM_BS
+	tristate "Bit sliced AES using NEON instructions"
+	depends on ARM && KERNEL_MODE_NEON
+	select CRYPTO_ALGAPI
+	select CRYPTO_AES_ARM
+	select CRYPTO_ABLK_HELPER
+	help
+	  Use a faster and more secure NEON based implementation of AES in CBC,
+	  CTR and XTS modes
+
+	  Bit sliced AES gives around 45% speedup on Cortex-A15 for CTR mode
+	  and for XTS mode encryption, CBC and XTS mode decryption speedup is
+	  around 25%. (CBC encryption speed is not affected by this driver.)
+	  This implementation does not rely on any lookup tables so it is
+	  believed to be invulnerable to cache timing attacks.
+
 config CRYPTO_ANUBIS
 	tristate "Anubis cipher algorithm"
 	select CRYPTO_ALGAPI
-- 
cgit 


From 722da9d20e7f203ddbb54aba32f95a020d41fc42 Mon Sep 17 00:00:00 2001
From: Leif Lindholm <leif.lindholm@linaro.org>
Date: Thu, 3 Oct 2013 15:42:37 +0100
Subject: x86/efi: Fix config_table_type array termination

Incorrect use of 0 in terminating entry of arch_tables[] causes the
following sparse warning,

  arch/x86/platform/efi/efi.c:74:27: sparse: Using plain integer as NULL pointer

Replace with NULL.

Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
[ Included sparse warning in commit message. ]
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 arch/x86/platform/efi/efi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index fbc1d70188f8..1d3372ac9c66 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -71,7 +71,7 @@ static __initdata efi_config_table_type_t arch_tables[] = {
 #ifdef CONFIG_X86_UV
 	{UV_SYSTEM_TABLE_GUID, "UVsystab", &efi.uv_systab},
 #endif
-	{NULL_GUID, NULL, 0},
+	{NULL_GUID, NULL, NULL},
 };
 
 /*
-- 
cgit 


From c158c3bf59951bbb44bd7ccca9e6665dfd1617c5 Mon Sep 17 00:00:00 2001
From: Roy Franz <roy.franz@linaro.org>
Date: Fri, 4 Oct 2013 09:02:46 -0700
Subject: boot, efi: Remove redundant memset()

Remove a redundant memset() call from efi_relocate_kernel() that
was clearing memory that would be used by BSS in non-compressed
images loaded with this function.  This clear was redundant with
the clearing done in the image itself, and also implemented incorrectly
with a 0 length.

Signed-off-by: Roy Franz <roy.franz@linaro.org>
Acked-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 drivers/firmware/efi/efi-stub-helper.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/firmware/efi/efi-stub-helper.c b/drivers/firmware/efi/efi-stub-helper.c
index cc0581daa9ed..b6bffbfd3be7 100644
--- a/drivers/firmware/efi/efi-stub-helper.c
+++ b/drivers/firmware/efi/efi-stub-helper.c
@@ -567,8 +567,6 @@ static efi_status_t efi_relocate_kernel(efi_system_table_t *sys_table_arg,
 	 * have been allocated by UEFI, so we can safely use memcpy.
 	 */
 	memcpy((void *)new_addr, (void *)cur_image_addr, image_size);
-	/* Zero any extra space we may have allocated for BSS. */
-	memset((void *)(new_addr + image_size), alloc_size - image_size, 0);
 
 	/* Return the new address of the relocated image. */
 	*image_addr = new_addr;
-- 
cgit 


From 03078633a6eb86fdb6ea2f40e6352de4b1181bbf Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Tue, 24 Sep 2013 14:24:49 -0600
Subject: IB/qib: Drop qib_tune_pcie_caps() and qib_tune_pcie_coalesce() return
 values

The callers of qib_tune_pcie_caps() and qib_tune_pcie_coalesce() don't
check the return values, so this patch drops the return values altogether.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
---
 drivers/infiniband/hw/qib/qib_pcie.c | 28 ++++++++++++----------------
 1 file changed, 12 insertions(+), 16 deletions(-)

diff --git a/drivers/infiniband/hw/qib/qib_pcie.c b/drivers/infiniband/hw/qib/qib_pcie.c
index 24973c8b8443..c8d9c4ab142b 100644
--- a/drivers/infiniband/hw/qib/qib_pcie.c
+++ b/drivers/infiniband/hw/qib/qib_pcie.c
@@ -51,8 +51,8 @@
  * file calls, even though this violates some
  * expectations of harmlessness.
  */
-static int qib_tune_pcie_caps(struct qib_devdata *);
-static int qib_tune_pcie_coalesce(struct qib_devdata *);
+static void qib_tune_pcie_caps(struct qib_devdata *);
+static void qib_tune_pcie_coalesce(struct qib_devdata *);
 
 /*
  * Do all the common PCIe setup and initialization.
@@ -487,7 +487,7 @@ MODULE_PARM_DESC(pcie_coalesce, "tune PCIe colescing on some Intel chipsets");
  * of these chipsets, with some BIOS settings, and enabling it on those
  * systems may result in the system crashing, and/or data corruption.
  */
-static int qib_tune_pcie_coalesce(struct qib_devdata *dd)
+static void qib_tune_pcie_coalesce(struct qib_devdata *dd)
 {
 	int r;
 	struct pci_dev *parent;
@@ -495,18 +495,18 @@ static int qib_tune_pcie_coalesce(struct qib_devdata *dd)
 	u32 mask, bits, val;
 
 	if (!qib_pcie_coalesce)
-		return 0;
+		return;
 
 	/* Find out supported and configured values for parent (root) */
 	parent = dd->pcidev->bus->self;
 	if (parent->bus->parent) {
 		qib_devinfo(dd->pcidev, "Parent not root\n");
-		return 1;
+		return;
 	}
 	if (!pci_is_pcie(parent))
-		return 1;
+		return;
 	if (parent->vendor != 0x8086)
-		return 1;
+		return;
 
 	/*
 	 *  - bit 12: Max_rdcmp_Imt_EN: need to set to 1
@@ -539,13 +539,12 @@ static int qib_tune_pcie_coalesce(struct qib_devdata *dd)
 		mask = (3U << 24) | (7U << 10);
 	} else {
 		/* not one of the chipsets that we know about */
-		return 1;
+		return;
 	}
 	pci_read_config_dword(parent, 0x48, &val);
 	val &= ~mask;
 	val |= bits;
 	r = pci_write_config_dword(parent, 0x48, val);
-	return 0;
 }
 
 /*
@@ -556,9 +555,8 @@ static int qib_pcie_caps;
 module_param_named(pcie_caps, qib_pcie_caps, int, S_IRUGO);
 MODULE_PARM_DESC(pcie_caps, "Max PCIe tuning: Payload (0..3), ReadReq (4..7)");
 
-static int qib_tune_pcie_caps(struct qib_devdata *dd)
+static void qib_tune_pcie_caps(struct qib_devdata *dd)
 {
-	int ret = 1; /* Assume the worst */
 	struct pci_dev *parent;
 	u16 rc_mpss, rc_mps, ep_mpss, ep_mps;
 	u16 rc_mrrs, ep_mrrs, max_mrrs;
@@ -567,18 +565,18 @@ static int qib_tune_pcie_caps(struct qib_devdata *dd)
 	parent = dd->pcidev->bus->self;
 	if (!pci_is_root_bus(parent->bus)) {
 		qib_devinfo(dd->pcidev, "Parent not root\n");
-		goto bail;
+		return;
 	}
 
 	if (!pci_is_pcie(parent) || !pci_is_pcie(dd->pcidev))
-		goto bail;
+		return;
+
 	rc_mpss = parent->pcie_mpss;
 	rc_mps = ffs(pcie_get_mps(parent)) - 8;
 	/* Find out supported and configured values for endpoint (us) */
 	ep_mpss = dd->pcidev->pcie_mpss;
 	ep_mps = ffs(pcie_get_mps(dd->pcidev)) - 8;
 
-	ret = 0;
 	/* Find max payload supported by root, endpoint */
 	if (rc_mpss > ep_mpss)
 		rc_mpss = ep_mpss;
@@ -618,8 +616,6 @@ static int qib_tune_pcie_caps(struct qib_devdata *dd)
 		ep_mrrs = max_mrrs;
 		pcie_set_readrq(dd->pcidev, ep_mrrs);
 	}
-bail:
-	return ret;
 }
 /* End of PCIe capability tuning */
 
-- 
cgit 


From 9db008d0d963f358c13381e86f5a042579216f06 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Mon, 9 Sep 2013 21:13:07 +0800
Subject: staging: et131x: Use pci_dev->pcie_mpss and pcie_set_readrq() to
 simplify code

The PCI core caches the "PCIe Max Payload Size Supported" in
pci_dev->pcie_mpss, so use that instead of pcie_capability_read_dword().
Also use pcie_set_readrq() instead of pcie_capability_clear_and_set_word()
to simplify code.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Mark Einon <mark.einon@gmail.com>
---
 drivers/staging/et131x/et131x.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/et131x/et131x.c b/drivers/staging/et131x/et131x.c
index f73e58f5ef8d..876881d1826e 100644
--- a/drivers/staging/et131x/et131x.c
+++ b/drivers/staging/et131x/et131x.c
@@ -3605,17 +3605,10 @@ static int et131x_pci_init(struct et131x_adapter *adapter,
 		goto err_out;
 	}
 
-	/* Let's set up the PORT LOGIC Register.  First we need to know what
-	 * the max_payload_size is
-	 */
-	if (pcie_capability_read_word(pdev, PCI_EXP_DEVCAP, &max_payload)) {
-		dev_err(&pdev->dev,
-		    "Could not read PCI config space for Max Payload Size\n");
-		goto err_out;
-	}
+	/* Let's set up the PORT LOGIC Register. */
 
 	/* Program the Ack/Nak latency and replay timers */
-	max_payload &= 0x07;
+	max_payload = pdev->pcie_mpss;
 
 	if (max_payload < 2) {
 		static const u16 acknak[2] = { 0x76, 0xD0 };
@@ -3645,8 +3638,7 @@ static int et131x_pci_init(struct et131x_adapter *adapter,
 	}
 
 	/* Change the max read size to 2k */
-	if (pcie_capability_clear_and_set_word(pdev, PCI_EXP_DEVCTL,
-				PCI_EXP_DEVCTL_READRQ, 0x4 << 12)) {
+	if (pcie_set_readrq(pdev, 2048)) {
 		dev_err(&pdev->dev,
 			"Couldn't change PCI config space for Max read size\n");
 		goto err_out;
-- 
cgit 


From c11592fea04901920236859898f5bc82b6c1a2f1 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Mon, 9 Sep 2013 21:13:08 +0800
Subject: drm/radeon: use pcie_get_readrq() and pcie_set_readrq() to simplify
 code

Use pcie_get_readrq() and pcie_set_readrq() functions to simplify code.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/radeon/evergreen.c | 19 ++++++-------------
 1 file changed, 6 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 555164e270a7..871066a8c630 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -1174,23 +1174,16 @@ int evergreen_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk)
 
 void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev)
 {
-	u16 ctl, v;
-	int err;
-
-	err = pcie_capability_read_word(rdev->pdev, PCI_EXP_DEVCTL, &ctl);
-	if (err)
-		return;
-
-	v = (ctl & PCI_EXP_DEVCTL_READRQ) >> 12;
+	int readrq;
+	u16 v;
 
+	readrq = pcie_get_readrq(rdev->pdev);
+	v = ffs(readrq) - 8;
 	/* if bios or OS sets MAX_READ_REQUEST_SIZE to an invalid value, fix it
 	 * to avoid hangs or perfomance issues
 	 */
-	if ((v == 0) || (v == 6) || (v == 7)) {
-		ctl &= ~PCI_EXP_DEVCTL_READRQ;
-		ctl |= (2 << 12);
-		pcie_capability_write_word(rdev->pdev, PCI_EXP_DEVCTL, ctl);
-	}
+	if ((v == 0) || (v == 6) || (v == 7))
+		pcie_set_readrq(rdev->pdev, 512);
 }
 
 static bool dce4_is_in_vblank(struct radeon_device *rdev, int crtc)
-- 
cgit 


From f8db3c9086cd33ee3efc913ade291694f54a57f2 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Sun, 29 Sep 2013 10:29:11 +0800
Subject: PCI: exynos: Add missing clk_disable_unprepare() on error path

Add the missing clk_disable_unprepare() before return
from exynos_pcie_probe() in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
---
 drivers/pci/host/pci-exynos.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/drivers/pci/host/pci-exynos.c b/drivers/pci/host/pci-exynos.c
index ee692c2c3d73..89804728bd5b 100644
--- a/drivers/pci/host/pci-exynos.c
+++ b/drivers/pci/host/pci-exynos.c
@@ -599,18 +599,24 @@ static int __init exynos_pcie_probe(struct platform_device *pdev)
 
 	elbi_base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	exynos_pcie->elbi_base = devm_ioremap_resource(&pdev->dev, elbi_base);
-	if (IS_ERR(exynos_pcie->elbi_base))
-		return PTR_ERR(exynos_pcie->elbi_base);
+	if (IS_ERR(exynos_pcie->elbi_base)) {
+		ret = PTR_ERR(exynos_pcie->elbi_base);
+		goto fail_bus_clk;
+	}
 
 	phy_base = platform_get_resource(pdev, IORESOURCE_MEM, 1);
 	exynos_pcie->phy_base = devm_ioremap_resource(&pdev->dev, phy_base);
-	if (IS_ERR(exynos_pcie->phy_base))
-		return PTR_ERR(exynos_pcie->phy_base);
+	if (IS_ERR(exynos_pcie->phy_base)) {
+		ret = PTR_ERR(exynos_pcie->phy_base);
+		goto fail_bus_clk;
+	}
 
 	block_base = platform_get_resource(pdev, IORESOURCE_MEM, 2);
 	exynos_pcie->block_base = devm_ioremap_resource(&pdev->dev, block_base);
-	if (IS_ERR(exynos_pcie->block_base))
-		return PTR_ERR(exynos_pcie->block_base);
+	if (IS_ERR(exynos_pcie->block_base)) {
+		ret = PTR_ERR(exynos_pcie->block_base);
+		goto fail_bus_clk;
+	}
 
 	ret = add_pcie_port(pp, pdev);
 	if (ret < 0)
-- 
cgit 


From e0ec2f39ef9905a24d5d88238eda3dabb8d591e0 Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Mon, 30 Sep 2013 00:41:29 +0200
Subject: ARM: dts: mxs: Add MSR M28CU3 board

This board is based on the M28 SoM with custom baseboard. Supported
are LEDs, ethernet, PWM, LCD, SD slots.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/Makefile         |   1 +
 arch/arm/boot/dts/imx28-m28cu3.dts | 266 +++++++++++++++++++++++++++++++++++++
 arch/arm/mach-mxs/mach-mxs.c       |   7 +
 3 files changed, 274 insertions(+)
 create mode 100644 arch/arm/boot/dts/imx28-m28cu3.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 909561081711..3043e6cd101e 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -159,6 +159,7 @@ dtb-$(CONFIG_ARCH_MXS) += imx23-evk.dtb \
 	imx28-cfa10057.dtb \
 	imx28-cfa10058.dtb \
 	imx28-evk.dtb \
+	imx28-m28cu3.dtb \
 	imx28-m28evk.dtb \
 	imx28-sps1.dtb \
 	imx28-tx28.dtb
diff --git a/arch/arm/boot/dts/imx28-m28cu3.dts b/arch/arm/boot/dts/imx28-m28cu3.dts
new file mode 100644
index 000000000000..d3958da60bd7
--- /dev/null
+++ b/arch/arm/boot/dts/imx28-m28cu3.dts
@@ -0,0 +1,266 @@
+/*
+ * Copyright (C) 2013 Marek Vasut <marex@denx.de>
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/dts-v1/;
+#include "imx28.dtsi"
+
+/ {
+	model = "MSR M28CU3";
+	compatible = "msr,m28cu3", "fsl,imx28";
+
+	memory {
+		reg = <0x40000000 0x08000000>;
+	};
+
+	apb@80000000 {
+		apbh@80000000 {
+			gpmi-nand@8000c000 {
+				#address-cells = <1>;
+				#size-cells = <1>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&gpmi_pins_a &gpmi_status_cfg>;
+				status = "okay";
+
+				partition@0 {
+					label = "gpmi-nfc-0-boot";
+					reg = <0x00000000 0x01400000>;
+					read-only;
+				};
+
+				partition@1 {
+					label = "gpmi-nfc-general-use";
+					reg = <0x01400000 0x0ec00000>;
+				};
+			};
+
+			ssp0: ssp@80010000 {
+				compatible = "fsl,imx28-mmc";
+				pinctrl-names = "default";
+				pinctrl-0 = <&mmc0_4bit_pins_a
+					     &mmc0_cd_cfg
+					     &mmc0_sck_cfg>;
+				bus-width = <4>;
+				vmmc-supply = <&reg_vddio_sd0>;
+				status = "okay";
+			};
+
+			ssp2: ssp@80014000 {
+				compatible = "fsl,imx28-mmc";
+				pinctrl-names = "default";
+				pinctrl-0 = <&mmc2_4bit_pins_a
+					     &mmc2_cd_cfg
+					     &mmc2_sck_cfg>;
+				bus-width = <4>;
+				vmmc-supply = <&reg_vddio_sd1>;
+				status = "okay";
+			};
+
+			pinctrl@80018000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <&hog_pins_a>;
+
+				hog_pins_a: hog@0 {
+					reg = <0>;
+					fsl,pinmux-ids = <
+						MX28_PAD_SSP2_SS0__GPIO_2_19
+						MX28_PAD_PWM4__GPIO_3_29
+						MX28_PAD_AUART2_RX__GPIO_3_8
+						MX28_PAD_ENET0_RX_CLK__GPIO_4_13
+					>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
+				};
+
+				lcdif_pins_m28: lcdif-m28@0 {
+					reg = <0>;
+					fsl,pinmux-ids = <
+						MX28_PAD_LCD_VSYNC__LCD_VSYNC
+						MX28_PAD_LCD_HSYNC__LCD_HSYNC
+						MX28_PAD_LCD_DOTCLK__LCD_DOTCLK
+						MX28_PAD_LCD_RESET__LCD_RESET
+						MX28_PAD_LCD_CS__LCD_ENABLE
+						MX28_PAD_AUART1_TX__GPIO_3_5
+					>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
+				};
+
+				led_pins_gpio: leds-m28@0 {
+					reg = <0>;
+					fsl,pinmux-ids = <
+						MX28_PAD_SSP3_MISO__GPIO_2_26
+						MX28_PAD_SSP3_SCK__GPIO_2_24
+					>;
+					fsl,drive-strength = <MXS_DRIVE_4mA>;
+					fsl,voltage = <MXS_VOLTAGE_HIGH>;
+					fsl,pull-up = <MXS_PULL_DISABLE>;
+				};
+			};
+
+			ocotp@8002c000 {
+				status = "okay";
+			};
+
+			lcdif@80030000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <&lcdif_24bit_pins_a
+					     &lcdif_pins_m28>;
+				display = <&display>;
+				reset-active-high;
+				status = "okay";
+
+				display: display0 {
+					bits-per-pixel = <32>;
+					bus-width = <24>;
+
+					display-timings {
+						native-mode = <&timing0>;
+						timing0: timing0 {
+							clock-frequency = <6410256>;
+							hactive = <320>;
+							vactive = <240>;
+							hback-porch = <38>;
+							hfront-porch = <20>;
+							vback-porch = <15>;
+							vfront-porch = <5>;
+							hsync-len = <30>;
+							vsync-len = <3>;
+							hsync-active = <0>;
+							vsync-active = <0>;
+							de-active = <1>;
+							pixelclk-active = <1>;
+						};
+					};
+				};
+			};
+		};
+
+		apbx@80040000 {
+			duart: serial@80074000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <&duart_pins_b>;
+				status = "okay";
+			};
+
+			usbphy1: usbphy@8007e000 {
+				status = "okay";
+			};
+
+			auart0: serial@8006a000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <&auart0_2pins_a>;
+				status = "okay";
+			};
+
+			auart3: serial@80070000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <&auart3_2pins_b>;
+				status = "okay";
+			};
+
+			pwm: pwm@80064000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <&pwm3_pins_a>;
+				status = "okay";
+			};
+		};
+	};
+
+	ahb@80080000 {
+		usb1: usb@80090000 {
+			vbus-supply = <&reg_usb1_vbus>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&usbphy1_pins_a>;
+			disable-over-current;
+			status = "okay";
+		};
+
+		mac0: ethernet@800f0000 {
+			phy-mode = "rmii";
+			pinctrl-names = "default";
+			pinctrl-0 = <&mac0_pins_a>;
+			phy-reset-gpios = <&gpio4 13 0>;
+			phy-reset-duration = <100>;
+			status = "okay";
+		};
+
+		mac1: ethernet@800f4000 {
+			phy-mode = "rmii";
+			pinctrl-names = "default";
+			pinctrl-0 = <&mac1_pins_a>;
+			status = "okay";
+		};
+	};
+
+	backlight {
+		compatible = "pwm-backlight";
+		pwms = <&pwm 3 5000000>;
+		brightness-levels = <0 4 8 16 32 64 128 255>;
+		default-brightness-level = <6>;
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&led_pins_gpio>;
+
+		user1 {
+			label = "sd0-led";
+			gpios = <&gpio2 26 0>;
+			linux,default-trigger = "mmc0";
+		};
+
+		user2 {
+			label = "sd1-led";
+			gpios = <&gpio2 24 0>;
+			linux,default-trigger = "mmc2";
+		};
+	};
+
+	regulators {
+		compatible = "simple-bus";
+
+		reg_3p3v: 3p3v {
+			compatible = "regulator-fixed";
+			regulator-name = "3P3V";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+		};
+
+		reg_vddio_sd0: vddio-sd0 {
+			compatible = "regulator-fixed";
+			regulator-name = "vddio-sd0";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			gpio = <&gpio3 29 0>;
+		};
+
+		reg_vddio_sd1: vddio-sd1 {
+			compatible = "regulator-fixed";
+			regulator-name = "vddio-sd1";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			gpio = <&gpio2 19 0>;
+		};
+
+		reg_usb1_vbus: usb1_vbus {
+			compatible = "regulator-fixed";
+			regulator-name = "usb1_vbus";
+			regulator-min-microvolt = <5000000>;
+			regulator-max-microvolt = <5000000>;
+			gpio = <&gpio3 8 0>;
+			enable-active-high;
+		};
+	};
+};
diff --git a/arch/arm/mach-mxs/mach-mxs.c b/arch/arm/mach-mxs/mach-mxs.c
index 98f6e2adb53e..c0ceb17649fa 100644
--- a/arch/arm/mach-mxs/mach-mxs.c
+++ b/arch/arm/mach-mxs/mach-mxs.c
@@ -332,6 +332,11 @@ static void __init crystalfontz_init(void)
 	update_fec_mac_prop(OUI_CRYSTALFONTZ);
 }
 
+static void __init m28cu3_init(void)
+{
+	update_fec_mac_prop(OUI_DENX);
+}
+
 static const char __init *mxs_get_soc_id(void)
 {
 	struct device_node *np;
@@ -459,6 +464,8 @@ static void __init mxs_machine_init(void)
 		apx4devkit_init();
 	else if (of_machine_is_compatible("crystalfontz,cfa10036"))
 		crystalfontz_init();
+	else if (of_machine_is_compatible("msr,m28cu3"))
+		m28cu3_init();
 
 	of_platform_populate(NULL, of_default_bus_match_table,
 			     NULL, parent);
-- 
cgit 


From f3d3444a4d7f76e79841c59c78105a45295cc4b0 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Sat, 5 Oct 2013 12:01:04 +0200
Subject: Bluetooth: Rename HCI_LE_PERIPHERAL to HCI_ADVERTISING

This flag is used to indicate whether we want to have advertising
enabled or not, so give it a more suitable name.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/hci.h |  2 +-
 net/bluetooth/hci_conn.c    |  2 +-
 net/bluetooth/hci_core.c    |  2 +-
 net/bluetooth/hci_event.c   |  6 +++---
 net/bluetooth/mgmt.c        | 18 +++++++++---------
 5 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index b90eec5e9c06..e8bba05686d1 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -118,7 +118,7 @@ enum {
 	HCI_SSP_ENABLED,
 	HCI_HS_ENABLED,
 	HCI_LE_ENABLED,
-	HCI_LE_PERIPHERAL,
+	HCI_ADVERTISING,
 	HCI_CONNECTABLE,
 	HCI_DISCOVERABLE,
 	HCI_LINK_SECURITY,
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 08e601c68314..8b0d08fb6158 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -546,7 +546,7 @@ static struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
 {
 	struct hci_conn *conn;
 
-	if (test_bit(HCI_LE_PERIPHERAL, &hdev->flags))
+	if (test_bit(HCI_ADVERTISING, &hdev->flags))
 		return ERR_PTR(-ENOTSUPP);
 
 	conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, dst);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 82dbdc6a7e9e..aa63ebb114d4 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1105,7 +1105,7 @@ static u8 create_ad(struct hci_dev *hdev, u8 *ptr)
 	u8 ad_len = 0, flags = 0;
 	size_t name_len;
 
-	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags))
+	if (test_bit(HCI_ADVERTISING, &hdev->dev_flags))
 		flags |= LE_AD_GENERAL;
 
 	if (test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) {
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 4785ab0795f5..e1ad858b1fb6 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -918,9 +918,9 @@ static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb)
 
 	if (!status) {
 		if (*sent)
-			set_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags);
+			set_bit(HCI_ADVERTISING, &hdev->dev_flags);
 		else
-			clear_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags);
+			clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
 	}
 
 	if (!test_bit(HCI_INIT, &hdev->flags)) {
@@ -1005,7 +1005,7 @@ static void hci_cc_write_le_host_supported(struct hci_dev *hdev,
 		} else {
 			hdev->features[1][0] &= ~LMP_HOST_LE;
 			clear_bit(HCI_LE_ENABLED, &hdev->dev_flags);
-			clear_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags);
+			clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
 		}
 
 		if (sent->simul)
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 16125ff918f1..7e43d376e2e6 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -425,7 +425,7 @@ static u32 get_current_settings(struct hci_dev *hdev)
 	if (test_bit(HCI_HS_ENABLED, &hdev->dev_flags))
 		settings |= MGMT_SETTING_HS;
 
-	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags))
+	if (test_bit(HCI_ADVERTISING, &hdev->dev_flags))
 		settings |= MGMT_SETTING_ADVERTISING;
 
 	return settings;
@@ -1463,8 +1463,8 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 			changed = true;
 		}
 
-		if (!val && test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags)) {
-			clear_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags);
+		if (!val && test_bit(HCI_ADVERTISING, &hdev->dev_flags)) {
+			clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
 			changed = true;
 		}
 
@@ -1500,7 +1500,7 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 
 	hci_req_init(&req, hdev);
 
-	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags) && !val)
+	if (test_bit(HCI_ADVERTISING, &hdev->dev_flags) && !val)
 		hci_req_add(&req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(val), &val);
 
 	hci_req_add(&req, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(hci_cp),
@@ -2888,7 +2888,7 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev,
 			goto failed;
 		}
 
-		if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags)) {
+		if (test_bit(HCI_ADVERTISING, &hdev->dev_flags)) {
 			err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
 					 MGMT_STATUS_REJECTED);
 			mgmt_pending_remove(cmd);
@@ -3236,13 +3236,13 @@ static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data, u1
 	hci_dev_lock(hdev);
 
 	val = !!cp->val;
-	enabled = test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags);
+	enabled = test_bit(HCI_ADVERTISING, &hdev->dev_flags);
 
 	if (!hdev_is_powered(hdev) || val == enabled) {
 		bool changed = false;
 
-		if (val != test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags)) {
-			change_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags);
+		if (val != test_bit(HCI_ADVERTISING, &hdev->dev_flags)) {
+			change_bit(HCI_ADVERTISING, &hdev->dev_flags);
 			changed = true;
 		}
 
@@ -3851,7 +3851,7 @@ static int powered_update_hci(struct hci_dev *hdev)
 				    &hdev->static_addr);
 	}
 
-	if (test_bit(HCI_LE_PERIPHERAL, &hdev->dev_flags)) {
+	if (test_bit(HCI_ADVERTISING, &hdev->dev_flags)) {
 		u8 adv = 0x01;
 
 		hci_req_add(&req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(adv), &adv);
-- 
cgit 


From d2f5a196d7b401b79e2321b24cc0ac8636ffbc17 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Sat, 5 Oct 2013 12:01:05 +0200
Subject: Bluetooth: Add public mgmt function to send New Settings event

A function is needed so that the HCI event processing can ask the mgmt
code to emit a new settings event. This is necessary e.g. when the event
processing does updates to mgmt related states without any dependency of
actual mgmt commands.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/hci_core.h | 1 +
 net/bluetooth/mgmt.c             | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index e09c30577b3a..079c5c55c829 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1123,6 +1123,7 @@ void hci_sock_dev_event(struct hci_dev *hdev, int event);
 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
 int mgmt_index_added(struct hci_dev *hdev);
 int mgmt_index_removed(struct hci_dev *hdev);
+int mgmt_new_settings(struct hci_dev *hdev);
 int mgmt_set_powered_failed(struct hci_dev *hdev, int err);
 int mgmt_powered(struct hci_dev *hdev, u8 powered);
 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 7e43d376e2e6..6e808d1d78f3 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -890,6 +890,11 @@ static int new_settings(struct hci_dev *hdev, struct sock *skip)
 	return mgmt_event(MGMT_EV_NEW_SETTINGS, hdev, &ev, sizeof(ev), skip);
 }
 
+int mgmt_new_settings(struct hci_dev *hdev)
+{
+	return new_settings(hdev, NULL);
+}
+
 struct cmd_lookup {
 	struct sock *sk;
 	struct hci_dev *hdev;
-- 
cgit 


From 2210246cf52bd60e8af452f8e184d1cb53e1e4b1 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Sat, 5 Oct 2013 12:01:06 +0200
Subject: Bluetooth: Fix re-enabling advertising after a connection

LE controllers will automatically disable advertising whenever they
accept a new connection. In order not to fall out of sync with the
advertising setting we need to re-enable advertising whenever the last
LE connection drops. A failure to re-enable advertising should cause the
setting to be disabled, so this patch also calls mgmt_new_settings()
when this happens.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/hci_event.c | 51 ++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 50 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index e1ad858b1fb6..6eaef6ed9522 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1796,6 +1796,40 @@ static u8 hci_to_mgmt_reason(u8 err)
 	}
 }
 
+static void adv_enable_complete(struct hci_dev *hdev, u8 status)
+{
+	BT_DBG("%s status %u", hdev->name, status);
+
+	/* Clear the advertising mgmt setting if we failed to re-enable it */
+	if (status) {
+		clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
+		mgmt_new_settings(hdev);
+	}
+}
+
+static void reenable_advertising(struct hci_dev *hdev)
+{
+	struct hci_request req;
+	u8 enable = 0x01;
+
+	if (hdev->conn_hash.le_num)
+		return;
+
+	if (!test_bit(HCI_ADVERTISING, &hdev->dev_flags))
+		return;
+
+	hci_req_init(&req, hdev);
+	hci_req_add(&req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable);
+
+	/* If this fails we have no option but to let user space know
+	 * that we've disabled advertising.
+	 */
+	if (hci_req_run(&req, adv_enable_complete) < 0) {
+		clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
+		mgmt_new_settings(hdev);
+	}
+}
+
 static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_disconn_complete *ev = (void *) skb->data;
@@ -1826,10 +1860,25 @@ static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 	}
 
 	if (ev->status == 0) {
-		if (conn->type == ACL_LINK && conn->flush_key)
+		u8 type = conn->type;
+
+		if (type == ACL_LINK && conn->flush_key)
 			hci_remove_link_key(hdev, &conn->dst);
 		hci_proto_disconn_cfm(conn, ev->reason);
 		hci_conn_del(conn);
+
+		/* Re-enable advertising if necessary, since it might
+		 * have been disabled by the connection. From the
+		 * HCI_LE_Set_Advertise_Enable command description in
+		 * the core specification (v4.0):
+		 * "The Controller shall continue advertising until the Host
+		 * issues an LE_Set_Advertise_Enable command with
+		 * Advertising_Enable set to 0x00 (Advertising is disabled)
+		 * or until a connection is created or until the Advertising
+		 * is timed out due to Directed Advertising."
+		 */
+		if (type == LE_LINK)
+			reenable_advertising(hdev);
 	}
 
 unlock:
-- 
cgit 


From 66a1891642cf71877ddb89945882281f5ef28672 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 5 Oct 2013 08:45:00 +0100
Subject: iio:ad5449: Use spi_sync_transfer()

Use the spi_sync_transfer() helper function instead of open-coding it. Makes
the code a bit shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/ad5449.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/iio/dac/ad5449.c b/drivers/iio/dac/ad5449.c
index fff7d0762c0c..82e208f6cde2 100644
--- a/drivers/iio/dac/ad5449.c
+++ b/drivers/iio/dac/ad5449.c
@@ -101,7 +101,6 @@ static int ad5449_read(struct iio_dev *indio_dev, unsigned int addr,
 {
 	struct ad5449 *st = iio_priv(indio_dev);
 	int ret;
-	struct spi_message msg;
 	struct spi_transfer t[] = {
 		{
 			.tx_buf = &st->data[0],
@@ -114,15 +113,11 @@ static int ad5449_read(struct iio_dev *indio_dev, unsigned int addr,
 		},
 	};
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&t[0], &msg);
-	spi_message_add_tail(&t[1], &msg);
-
 	mutex_lock(&indio_dev->mlock);
 	st->data[0] = cpu_to_be16(addr << 12);
 	st->data[1] = cpu_to_be16(AD5449_CMD_NOOP);
 
-	ret = spi_sync(st->spi, &msg);
+	ret = spi_sync_transfer(st->spi, t, ARRAY_SIZE(t));
 	if (ret < 0)
 		goto out_unlock;
 
-- 
cgit 


From af3d5cad0a6699afcae84b578838e698f56028bb Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 5 Oct 2013 08:45:00 +0100
Subject: iio:adis16080: Use spi_sync_transfer()

Use the spi_sync_transfer() helper function instead of open-coding it. Makes
the code a bit shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/gyro/adis16080.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/iio/gyro/adis16080.c b/drivers/iio/gyro/adis16080.c
index e9ec022ae225..add509837269 100644
--- a/drivers/iio/gyro/adis16080.c
+++ b/drivers/iio/gyro/adis16080.c
@@ -51,7 +51,6 @@ static int adis16080_read_sample(struct iio_dev *indio_dev,
 		u16 addr, int *val)
 {
 	struct adis16080_state *st = iio_priv(indio_dev);
-	struct spi_message m;
 	int ret;
 	struct spi_transfer	t[] = {
 		{
@@ -66,11 +65,7 @@ static int adis16080_read_sample(struct iio_dev *indio_dev,
 
 	st->buf = cpu_to_be16(addr | ADIS16080_DIN_WRITE);
 
-	spi_message_init(&m);
-	spi_message_add_tail(&t[0], &m);
-	spi_message_add_tail(&t[1], &m);
-
-	ret = spi_sync(st->us, &m);
+	ret = spi_sync_transfer(st->us, t, ARRAY_SIZE(t));
 	if (ret == 0)
 		*val = sign_extend32(be16_to_cpu(st->buf), 11);
 
-- 
cgit 


From 35734fbdb54bbb5c0c3f47fd7ff78c61380c7eaa Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 5 Oct 2013 08:45:00 +0100
Subject: iio:adxrs450: Use spi_sync_transfer()

Use the spi_sync_transfer() helper function instead of open-coding it. Makes
the code a bit shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/gyro/adxrs450.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/iio/gyro/adxrs450.c b/drivers/iio/gyro/adxrs450.c
index c1f40efbf639..1e546ba7ba45 100644
--- a/drivers/iio/gyro/adxrs450.c
+++ b/drivers/iio/gyro/adxrs450.c
@@ -90,7 +90,6 @@ static int adxrs450_spi_read_reg_16(struct iio_dev *indio_dev,
 				    u8 reg_address,
 				    u16 *val)
 {
-	struct spi_message msg;
 	struct adxrs450_state *st = iio_priv(indio_dev);
 	u32 tx;
 	int ret;
@@ -114,10 +113,7 @@ static int adxrs450_spi_read_reg_16(struct iio_dev *indio_dev,
 		tx |= ADXRS450_P;
 
 	st->tx = cpu_to_be32(tx);
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfers[0], &msg);
-	spi_message_add_tail(&xfers[1], &msg);
-	ret = spi_sync(st->us, &msg);
+	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
 	if (ret) {
 		dev_err(&st->us->dev, "problem while reading 16 bit register 0x%02x\n",
 				reg_address);
@@ -169,7 +165,6 @@ static int adxrs450_spi_write_reg_16(struct iio_dev *indio_dev,
  **/
 static int adxrs450_spi_sensor_data(struct iio_dev *indio_dev, s16 *val)
 {
-	struct spi_message msg;
 	struct adxrs450_state *st = iio_priv(indio_dev);
 	int ret;
 	struct spi_transfer xfers[] = {
@@ -188,10 +183,7 @@ static int adxrs450_spi_sensor_data(struct iio_dev *indio_dev, s16 *val)
 	mutex_lock(&st->buf_lock);
 	st->tx = cpu_to_be32(ADXRS450_SENSOR_DATA);
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfers[0], &msg);
-	spi_message_add_tail(&xfers[1], &msg);
-	ret = spi_sync(st->us, &msg);
+	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
 	if (ret) {
 		dev_err(&st->us->dev, "Problem while reading sensor data\n");
 		goto error_ret;
-- 
cgit 


From f28607f3bf07a0fce3a34e76554947d2b1eab13d Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 5 Oct 2013 08:45:00 +0100
Subject: iio:adis16130: Use spi_sync_transfer()

Use the spi_sync_transfer() helper function instead of open-coding it. Makes
the code a bit shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/gyro/adis16130.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/iio/gyro/adis16130.c b/drivers/iio/gyro/adis16130.c
index 9155cf6cf287..445c2aecfadd 100644
--- a/drivers/iio/gyro/adis16130.c
+++ b/drivers/iio/gyro/adis16130.c
@@ -47,7 +47,6 @@ static int adis16130_spi_read(struct iio_dev *indio_dev, u8 reg_addr, u32 *val)
 {
 	int ret;
 	struct adis16130_state *st = iio_priv(indio_dev);
-	struct spi_message msg;
 	struct spi_transfer xfer = {
 		.tx_buf = st->buf,
 		.rx_buf = st->buf,
@@ -59,10 +58,7 @@ static int adis16130_spi_read(struct iio_dev *indio_dev, u8 reg_addr, u32 *val)
 	st->buf[0] = ADIS16130_CON_RD | reg_addr;
 	st->buf[1] = st->buf[2] = st->buf[3] = 0;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->us, &msg);
-
+	ret = spi_sync_transfer(st->us, &xfer, 1);
 	if (ret == 0)
 		*val = (st->buf[1] << 16) | (st->buf[2] << 8) | st->buf[3];
 	mutex_unlock(&st->buf_lock);
-- 
cgit 


From 63e4f052226dd9079409c22b55f38b1e50c5fb95 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 5 Oct 2013 08:45:00 +0100
Subject: staging:iio:adis16220: Use spi_sync_transfer()

Use the spi_sync_transfer() helper function instead of open-coding it. Makes
the code a bit shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/accel/adis16220_core.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/staging/iio/accel/adis16220_core.c b/drivers/staging/iio/accel/adis16220_core.c
index 5c289614357c..4c9364b63c77 100644
--- a/drivers/staging/iio/accel/adis16220_core.c
+++ b/drivers/staging/iio/accel/adis16220_core.c
@@ -102,7 +102,6 @@ static ssize_t adis16220_capture_buffer_read(struct iio_dev *indio_dev,
 					int addr)
 {
 	struct adis16220_state *st = iio_priv(indio_dev);
-	struct spi_message msg;
 	struct spi_transfer xfers[] = {
 		{
 			.tx_buf = st->tx,
@@ -147,10 +146,7 @@ static ssize_t adis16220_capture_buffer_read(struct iio_dev *indio_dev,
 	}
 	xfers[1].len = count;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfers[0], &msg);
-	spi_message_add_tail(&xfers[1], &msg);
-	ret = spi_sync(st->adis.spi, &msg);
+	ret = spi_sync_transfer(st->adis.spi, xfers, ARRAY_SIZE(xfers));
 	if (ret) {
 
 		mutex_unlock(&st->buf_lock);
-- 
cgit 


From 9aa698a0b316aa15f18f0cc99d7ba371bbba97d2 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 5 Oct 2013 08:45:00 +0100
Subject: staging:iio:ad9852: Use spi_sync_transfer()

Use the spi_sync_transfer() helper function instead of open-coding it. Makes
the code a bit shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/frequency/ad9852.c | 45 +++++++++-------------------------
 1 file changed, 11 insertions(+), 34 deletions(-)

diff --git a/drivers/staging/iio/frequency/ad9852.c b/drivers/staging/iio/frequency/ad9852.c
index 4be2cf8c2ab6..11e4367375d2 100644
--- a/drivers/staging/iio/frequency/ad9852.c
+++ b/drivers/staging/iio/frequency/ad9852.c
@@ -67,7 +67,6 @@ static ssize_t ad9852_set_parameter(struct device *dev,
 					const char *buf,
 					size_t len)
 {
-	struct spi_message msg;
 	struct spi_transfer xfer;
 	int ret;
 	struct ad9852_config *config = (struct ad9852_config *)buf;
@@ -78,99 +77,77 @@ static ssize_t ad9852_set_parameter(struct device *dev,
 	xfer.tx_buf = &config->phajst0[0];
 	mutex_lock(&st->lock);
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 3;
 	xfer.tx_buf = &config->phajst1[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 6;
 	xfer.tx_buf = &config->fretun1[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 6;
 	xfer.tx_buf = &config->fretun2[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 6;
 	xfer.tx_buf = &config->dltafre[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 5;
 	xfer.tx_buf = &config->updtclk[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 4;
 	xfer.tx_buf = &config->ramprat[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 5;
 	xfer.tx_buf = &config->control[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 3;
 	xfer.tx_buf = &config->outpskm[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 2;
 	xfer.tx_buf = &config->outpskr[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 3;
 	xfer.tx_buf = &config->daccntl[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 error_ret:
-- 
cgit 


From 630e7377b7d26e0ab530482be594aff88cbb060c Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 5 Oct 2013 08:45:00 +0100
Subject: staging:iio:ad9910: Use spi_sync_transfer()

Use the spi_sync_transfer() helper function instead of open-coding it. Makes
the code a bit shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/frequency/ad9910.c | 82 +++++++++-------------------------
 1 file changed, 20 insertions(+), 62 deletions(-)

diff --git a/drivers/staging/iio/frequency/ad9910.c b/drivers/staging/iio/frequency/ad9910.c
index a7d528ef620c..755e0482681a 100644
--- a/drivers/staging/iio/frequency/ad9910.c
+++ b/drivers/staging/iio/frequency/ad9910.c
@@ -119,7 +119,6 @@ static ssize_t ad9910_set_parameter(struct device *dev,
 					const char *buf,
 					size_t len)
 {
-	struct spi_message msg;
 	struct spi_transfer xfer;
 	int ret;
 	struct ad9910_config *config = (struct ad9910_config *)buf;
@@ -130,152 +129,118 @@ static ssize_t ad9910_set_parameter(struct device *dev,
 	xfer.tx_buf = &config->auxdac[0];
 	mutex_lock(&st->lock);
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 5;
 	xfer.tx_buf = &config->ioupd[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 5;
 	xfer.tx_buf = &config->ftw[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 3;
 	xfer.tx_buf = &config->pow[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 5;
 	xfer.tx_buf = &config->asf[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 5;
 	xfer.tx_buf = &config->multc[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 9;
 	xfer.tx_buf = &config->dig_rampl[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 9;
 	xfer.tx_buf = &config->dig_ramps[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 5;
 	xfer.tx_buf = &config->dig_rampr[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 9;
 	xfer.tx_buf = &config->sin_tonep0[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 9;
 	xfer.tx_buf = &config->sin_tonep1[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 9;
 	xfer.tx_buf = &config->sin_tonep2[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 	xfer.len = 9;
 	xfer.tx_buf = &config->sin_tonep3[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 9;
 	xfer.tx_buf = &config->sin_tonep4[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 9;
 	xfer.tx_buf = &config->sin_tonep5[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 9;
 	xfer.tx_buf = &config->sin_tonep6[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 9;
 	xfer.tx_buf = &config->sin_tonep7[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 error_ret:
@@ -288,7 +253,6 @@ static IIO_DEVICE_ATTR(dds, S_IWUSR, NULL, ad9910_set_parameter, 0);
 
 static void ad9910_init(struct ad9910_state *st)
 {
-	struct spi_message msg;
 	struct spi_transfer xfer;
 	int ret;
 	u8 cfr[5];
@@ -304,9 +268,7 @@ static void ad9910_init(struct ad9910_state *st)
 	xfer.len = 5;
 	xfer.tx_buf = &cfr;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
@@ -319,9 +281,7 @@ static void ad9910_init(struct ad9910_state *st)
 	xfer.len = 5;
 	xfer.tx_buf = &cfr;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
@@ -334,9 +294,7 @@ static void ad9910_init(struct ad9910_state *st)
 	xfer.len = 5;
 	xfer.tx_buf = &cfr;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
-- 
cgit 


From 3658a71b10c8471ac217983ddf2a2bdde71008af Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 5 Oct 2013 08:45:00 +0100
Subject: staging:iio:ad9951: Use spi_sync_transfer()

Use the spi_sync_transfer() helper function instead of open-coding it. Makes the
code a bit shorter.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/frequency/ad9951.c | 26 ++++++--------------------
 1 file changed, 6 insertions(+), 20 deletions(-)

diff --git a/drivers/staging/iio/frequency/ad9951.c b/drivers/staging/iio/frequency/ad9951.c
index 0094c2f392ad..5e8990a0210b 100644
--- a/drivers/staging/iio/frequency/ad9951.c
+++ b/drivers/staging/iio/frequency/ad9951.c
@@ -60,7 +60,6 @@ static ssize_t ad9951_set_parameter(struct device *dev,
 					const char *buf,
 					size_t len)
 {
-	struct spi_message msg;
 	struct spi_transfer xfer;
 	int ret;
 	struct ad9951_config *config = (struct ad9951_config *)buf;
@@ -71,36 +70,28 @@ static ssize_t ad9951_set_parameter(struct device *dev,
 	xfer.tx_buf = &config->asf[0];
 	mutex_lock(&st->lock);
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 2;
 	xfer.tx_buf = &config->arr[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 5;
 	xfer.tx_buf = &config->ftw0[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
 	xfer.len = 3;
 	xfer.tx_buf = &config->ftw1[0];
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 error_ret:
@@ -113,7 +104,6 @@ static IIO_DEVICE_ATTR(dds, S_IWUSR, NULL, ad9951_set_parameter, 0);
 
 static void ad9951_init(struct ad9951_state *st)
 {
-	struct spi_message msg;
 	struct spi_transfer xfer;
 	int ret;
 	u8 cfr[5];
@@ -129,9 +119,7 @@ static void ad9951_init(struct ad9951_state *st)
 	xfer.len = 5;
 	xfer.tx_buf = &cfr;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
@@ -143,9 +131,7 @@ static void ad9951_init(struct ad9951_state *st)
 	xfer.len = 4;
 	xfer.tx_buf = &cfr;
 
-	spi_message_init(&msg);
-	spi_message_add_tail(&xfer, &msg);
-	ret = spi_sync(st->sdev, &msg);
+	ret = spi_sync_transfer(st->sdev, &xfer, 1);
 	if (ret)
 		goto error_ret;
 
-- 
cgit 


From b788beda4db21ac28ae302f0323cffb75e578cac Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Tue, 24 Sep 2013 11:09:19 +0300
Subject: ARM: sunxi: Order Kconfig options alphabetically

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 arch/arm/mach-sunxi/Kconfig | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
index 3ab2f65f8a50..c9e72c89066a 100644
--- a/arch/arm/mach-sunxi/Kconfig
+++ b/arch/arm/mach-sunxi/Kconfig
@@ -1,14 +1,14 @@
 config ARCH_SUNXI
 	bool "Allwinner A1X SOCs" if ARCH_MULTI_V7
 	select ARCH_REQUIRE_GPIOLIB
+	select ARM_GIC
 	select CLKSRC_MMIO
 	select CLKSRC_OF
 	select COMMON_CLK
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_IRQ_CHIP
+	select HAVE_SMP
 	select PINCTRL
+	select PINCTRL_SUNXI
 	select SPARSE_IRQ
 	select SUN4I_TIMER
-	select PINCTRL_SUNXI
-	select ARM_GIC
-	select HAVE_SMP
-- 
cgit 


From 439d9f58017af96f0375d9443ff957c19056d6ec Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Tue, 24 Sep 2013 16:30:05 +0300
Subject: ARM: sun6i: Fix the APB2 clock gates register size

The APB2 clocks gates are only a 32 bits register wide, and not 2 as set
currently in the DTSI.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 arch/arm/boot/dts/sun6i-a31.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/sun6i-a31.dtsi b/arch/arm/boot/dts/sun6i-a31.dtsi
index f244f5f02365..c1751a64889a 100644
--- a/arch/arm/boot/dts/sun6i-a31.dtsi
+++ b/arch/arm/boot/dts/sun6i-a31.dtsi
@@ -175,7 +175,7 @@
 		apb2_gates: apb2_gates@01c2006c {
 			#clock-cells = <1>;
 			compatible = "allwinner,sun6i-a31-apb2-gates-clk";
-			reg = <0x01c2006c 0x8>;
+			reg = <0x01c2006c 0x4>;
 			clocks = <&apb2>;
 			clock-output-names = "apb2_i2c0", "apb2_i2c1",
 					"apb2_i2c2", "apb2_i2c3", "apb2_uart0",
-- 
cgit 


From 89e51dab7cb026193714f2858dbce203c98ecdec Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 1 Oct 2013 17:41:55 -0400
Subject: sysfs: remove unused sysfs_buffer->pos

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/file.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 1656a79ea6c0..81e3f727833f 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -44,7 +44,6 @@ struct sysfs_open_dirent {
 
 struct sysfs_buffer {
 	size_t			count;
-	loff_t			pos;
 	char			*page;
 	const struct sysfs_ops	*ops;
 	struct mutex		mutex;
-- 
cgit 


From aea585ef8fa6516395022e9d2fed6ec5014128bc Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 1 Oct 2013 17:41:56 -0400
Subject: sysfs: remove sysfs_buffer->needs_read_fill

->needs_read_fill is used to implement the following behaviors.

1. Ensure buffer filling on the first read.
2. Force buffer filling after a write.
3. Force buffer filling after a successful poll.

However, #2 and #3 don't really work as sysfs doesn't reset file
position.  While the read buffer would be refilled, the next read
would continue from the position after the last read or write,
requiring an explicit seek to the start for it to be useful, which
makes ->needs_read_fill superflous as read buffer is always refilled
if f_pos == 0.

Update sysfs_read_file() to test buffer->page for #1 instead and
remove ->needs_read_fill.  While this changes behavior in extreme
corner cases - e.g. re-reading a sysfs file after seeking to non-zero
position after a write or poll, it's highly unlikely to lead to actual
breakage.  This change is to prepare for using seq_file in the read
path.

While at it, reformat a comment in fill_write_buffer().

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/file.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 81e3f727833f..e2fafc0a9b36 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -47,7 +47,6 @@ struct sysfs_buffer {
 	char			*page;
 	const struct sysfs_ops	*ops;
 	struct mutex		mutex;
-	int			needs_read_fill;
 	int			event;
 	struct list_head	list;
 };
@@ -95,12 +94,10 @@ static int fill_read_buffer(struct dentry *dentry, struct sysfs_buffer *buffer)
 		/* Try to struggle along */
 		count = PAGE_SIZE - 1;
 	}
-	if (count >= 0) {
-		buffer->needs_read_fill = 0;
+	if (count >= 0)
 		buffer->count = count;
-	} else {
+	else
 		ret = count;
-	}
 	return ret;
 }
 
@@ -130,7 +127,11 @@ sysfs_read_file(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 	ssize_t retval = 0;
 
 	mutex_lock(&buffer->mutex);
-	if (buffer->needs_read_fill || *ppos == 0) {
+	/*
+	 * Fill on zero offset and the first read so that silly things like
+	 * "dd bs=1 skip=N" can work on sysfs files.
+	 */
+	if (*ppos == 0 || !buffer->page) {
 		retval = fill_read_buffer(file->f_path.dentry, buffer);
 		if (retval)
 			goto out;
@@ -166,14 +167,15 @@ static int fill_write_buffer(struct sysfs_buffer *buffer,
 	if (count >= PAGE_SIZE)
 		count = PAGE_SIZE - 1;
 	error = copy_from_user(buffer->page, buf, count);
-	buffer->needs_read_fill = 1;
-	/* if buf is assumed to contain a string, terminate it by \0,
-	   so e.g. sscanf() can scan the string easily */
+
+	/*
+	 * If buf is assumed to contain a string, terminate it by \0, so
+	 * e.g. sscanf() can scan the string easily.
+	 */
 	buffer->page[count] = 0;
 	return error ? -EFAULT : count;
 }
 
-
 /**
  *	flush_write_buffer - push buffer to kobject.
  *	@dentry:	dentry to the attribute
@@ -368,7 +370,6 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
 		goto err_out;
 
 	mutex_init(&buffer->mutex);
-	buffer->needs_read_fill = 1;
 	buffer->ops = ops;
 	file->private_data = buffer;
 
@@ -435,7 +436,6 @@ static unsigned int sysfs_poll(struct file *filp, poll_table *wait)
 	return DEFAULT_POLLMASK;
 
  trigger:
-	buffer->needs_read_fill = 1;
 	return DEFAULT_POLLMASK|POLLERR|POLLPRI;
 }
 
-- 
cgit 


From d2193ce2ce2ca3cfc33c479a14ff04c269c3cca9 Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Sun, 6 Oct 2013 08:58:40 +0900
Subject: ARM: S3C64XX: Move if ARCH_S3C64XX statement into mach-s3c64xx

All other platforms have this condition checked inside their own Kconfig
files, so for consistency this patch makes it this way for mach-s3c64xx
as well.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/Kconfig              | 2 --
 arch/arm/mach-s3c64xx/Kconfig | 4 ++++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3f7714d8d2d2..4a329c7277b1 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1009,9 +1009,7 @@ source "arch/arm/mach-sti/Kconfig"
 
 source "arch/arm/mach-s3c24xx/Kconfig"
 
-if ARCH_S3C64XX
 source "arch/arm/mach-s3c64xx/Kconfig"
-endif
 
 source "arch/arm/mach-s5p64x0/Kconfig"
 
diff --git a/arch/arm/mach-s3c64xx/Kconfig b/arch/arm/mach-s3c64xx/Kconfig
index 041da5172423..afb511395800 100644
--- a/arch/arm/mach-s3c64xx/Kconfig
+++ b/arch/arm/mach-s3c64xx/Kconfig
@@ -3,6 +3,8 @@
 #
 # Licensed under GPLv2
 
+if ARCH_S3C64XX
+
 # temporary until we can eliminate all drivers using it.
 config PLAT_S3C64XX
 	bool
@@ -306,3 +308,5 @@ config MACH_WLF_CRAGG_6410
 	select SAMSUNG_GPIO_EXTRA128
 	help
 	  Machine support for the Wolfson Cragganmore S3C6410 variant.
+
+endif
-- 
cgit 


From 54362e118c190bbdd5c21caa874c1de21a0ca12b Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Sun, 6 Oct 2013 08:59:30 +0900
Subject: gpio: samsung: Use CONFIG_ARCH_S3C64XX to check for S3C64XX support

Since CONFIG_PLAT_S3C64XX is going to be removed, this patch modifies
the gpio-samsung driver to use the proper way of checking for S3C64xx
support - CONFIG_ARCH_S3C64XX.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 drivers/gpio/gpio-samsung.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c
index 358a21c2d811..f6f1c7d244c4 100644
--- a/drivers/gpio/gpio-samsung.c
+++ b/drivers/gpio/gpio-samsung.c
@@ -1033,7 +1033,7 @@ static int s3c24xx_gpiolib_fbank_to_irq(struct gpio_chip *chip, unsigned offset)
 }
 #endif
 
-#ifdef CONFIG_PLAT_S3C64XX
+#ifdef CONFIG_ARCH_S3C64XX
 static int s3c64xx_gpiolib_mbank_to_irq(struct gpio_chip *chip, unsigned pin)
 {
 	return pin < 5 ? IRQ_EINT(23) + pin : -ENXIO;
@@ -1174,7 +1174,7 @@ struct samsung_gpio_chip s3c24xx_gpios[] = {
  */
 
 static struct samsung_gpio_chip s3c64xx_gpios_4bit[] = {
-#ifdef CONFIG_PLAT_S3C64XX
+#ifdef CONFIG_ARCH_S3C64XX
 	{
 		.chip	= {
 			.base	= S3C64XX_GPA(0),
@@ -1227,7 +1227,7 @@ static struct samsung_gpio_chip s3c64xx_gpios_4bit[] = {
 };
 
 static struct samsung_gpio_chip s3c64xx_gpios_4bit2[] = {
-#ifdef CONFIG_PLAT_S3C64XX
+#ifdef CONFIG_ARCH_S3C64XX
 	{
 		.base	= S3C64XX_GPH_BASE + 0x4,
 		.chip	= {
@@ -1257,7 +1257,7 @@ static struct samsung_gpio_chip s3c64xx_gpios_4bit2[] = {
 };
 
 static struct samsung_gpio_chip s3c64xx_gpios_2bit[] = {
-#ifdef CONFIG_PLAT_S3C64XX
+#ifdef CONFIG_ARCH_S3C64XX
 	{
 		.base	= S3C64XX_GPF_BASE,
 		.config	= &samsung_gpio_cfgs[6],
-- 
cgit 


From 7e66e2689cc3ec18b12ef95e6ed094a367886f50 Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Sun, 6 Oct 2013 08:59:34 +0900
Subject: s3c-camif: Use CONFIG_ARCH_S3C64XX to check for S3C64XX support

Since CONFIG_PLAT_S3C64XX is going to be removed, this patch modifies
the Kconfig entry of s3c-camif driver to use the proper way of checking
for S3C64xx support - CONFIG_ARCH_S3C64XX.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 drivers/media/platform/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index c7caf94621b4..eb70dda8cbf3 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -112,7 +112,7 @@ config VIDEO_OMAP3_DEBUG
 config VIDEO_S3C_CAMIF
 	tristate "Samsung S3C24XX/S3C64XX SoC Camera Interface driver"
 	depends on VIDEO_V4L2 && I2C && VIDEO_V4L2_SUBDEV_API
-	depends on (PLAT_S3C64XX || PLAT_S3C24XX) && PM_RUNTIME
+	depends on (ARCH_S3C64XX || PLAT_S3C24XX) && PM_RUNTIME
 	select VIDEOBUF2_DMA_CONTIG
 	---help---
 	  This is a v4l2 driver for s3c24xx and s3c64xx SoC series camera
-- 
cgit 


From 7472a2f21b6f73ea95841afbd8686e2515ab696b Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Sun, 6 Oct 2013 08:59:37 +0900
Subject: ASoC: samsung: Use CONFIG_ARCH_S3C64XX to check for S3C64XX support

Since CONFIG_PLAT_S3C64XX is going to be removed, this patch modifies
the s3c-i2s-v2 driver to use the proper way of checking for S3C64xx
support - CONFIG_ARCH_S3C64XX.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Acked-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 sound/soc/samsung/s3c-i2s-v2.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/sound/soc/samsung/s3c-i2s-v2.c b/sound/soc/samsung/s3c-i2s-v2.c
index e5e81b111001..fefc56100349 100644
--- a/sound/soc/samsung/s3c-i2s-v2.c
+++ b/sound/soc/samsung/s3c-i2s-v2.c
@@ -31,11 +31,7 @@
 #undef S3C_IIS_V2_SUPPORTED
 
 #if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413) \
-	|| defined(CONFIG_CPU_S5PV210)
-#define S3C_IIS_V2_SUPPORTED
-#endif
-
-#ifdef CONFIG_PLAT_S3C64XX
+	|| defined(CONFIG_ARCH_S3C64XX) || defined(CONFIG_CPU_S5PV210)
 #define S3C_IIS_V2_SUPPORTED
 #endif
 
-- 
cgit 


From 375b611e60f7c1ce6913417ca254efe5523f1a72 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 1 Oct 2013 17:41:57 -0400
Subject: sysfs: remove sysfs_buffer->ops

Currently, sysfs_ops is fetched during sysfs_open_file() and cached in
sysfs_buffer->ops to be used while the file is open.  This patch
removes the caching and makes each operation directly fetch sysfs_ops.

This patch doesn't introduce any behavior difference and is to prepare
for merging regular and bin file supports.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/file.c | 33 +++++++++++++++++++++------------
 1 file changed, 21 insertions(+), 12 deletions(-)

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index e2fafc0a9b36..7dfcc3317490 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -45,12 +45,23 @@ struct sysfs_open_dirent {
 struct sysfs_buffer {
 	size_t			count;
 	char			*page;
-	const struct sysfs_ops	*ops;
 	struct mutex		mutex;
 	int			event;
 	struct list_head	list;
 };
 
+/*
+ * Determine ktype->sysfs_ops for the given sysfs_dirent.  This function
+ * must be called while holding an active reference.
+ */
+static const struct sysfs_ops *sysfs_file_ops(struct sysfs_dirent *sd)
+{
+	struct kobject *kobj = sd->s_parent->s_dir.kobj;
+
+	lockdep_assert_held(sd);
+	return kobj->ktype ? kobj->ktype->sysfs_ops : NULL;
+}
+
 /**
  *	fill_read_buffer - allocate and fill buffer from object.
  *	@dentry:	dentry pointer.
@@ -66,7 +77,7 @@ static int fill_read_buffer(struct dentry *dentry, struct sysfs_buffer *buffer)
 {
 	struct sysfs_dirent *attr_sd = dentry->d_fsdata;
 	struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
-	const struct sysfs_ops *ops = buffer->ops;
+	const struct sysfs_ops *ops;
 	int ret = 0;
 	ssize_t count;
 
@@ -80,6 +91,8 @@ static int fill_read_buffer(struct dentry *dentry, struct sysfs_buffer *buffer)
 		return -ENODEV;
 
 	buffer->event = atomic_read(&attr_sd->s_attr.open->event);
+
+	ops = sysfs_file_ops(attr_sd);
 	count = ops->show(kobj, attr_sd->s_attr.attr, buffer->page);
 
 	sysfs_put_active(attr_sd);
@@ -191,13 +204,14 @@ static int flush_write_buffer(struct dentry *dentry,
 {
 	struct sysfs_dirent *attr_sd = dentry->d_fsdata;
 	struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
-	const struct sysfs_ops *ops = buffer->ops;
+	const struct sysfs_ops *ops;
 	int rc;
 
 	/* need attr_sd for attr and ops, its parent for kobj */
 	if (!sysfs_get_active(attr_sd))
 		return -ENODEV;
 
+	ops = sysfs_file_ops(attr_sd);
 	rc = ops->store(kobj, attr_sd->s_attr.attr, buffer->page, count);
 
 	sysfs_put_active(attr_sd);
@@ -205,7 +219,6 @@ static int flush_write_buffer(struct dentry *dentry,
 	return rc;
 }
 
-
 /**
  *	sysfs_write_file - write an attribute.
  *	@file:	file pointer
@@ -334,14 +347,11 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
 		return -ENODEV;
 
 	/* every kobject with an attribute needs a ktype assigned */
-	if (kobj->ktype && kobj->ktype->sysfs_ops)
-		ops = kobj->ktype->sysfs_ops;
-	else {
-		WARN(1, KERN_ERR
-		     "missing sysfs attribute operations for kobject: %s\n",
-		     kobject_name(kobj));
+	ops = sysfs_file_ops(attr_sd);
+	if (WARN(!ops, KERN_ERR
+		 "missing sysfs attribute operations for kobject: %s\n",
+		 kobject_name(kobj)))
 		goto err_out;
-	}
 
 	/* File needs write support.
 	 * The inode's perms must say it's ok,
@@ -370,7 +380,6 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
 		goto err_out;
 
 	mutex_init(&buffer->mutex);
-	buffer->ops = ops;
 	file->private_data = buffer;
 
 	/* make sure we have open dirent struct */
-- 
cgit 


From 6e2d9e935240b6276eaf913c20bb989fd0ed70ee Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Sun, 6 Oct 2013 09:06:27 +0900
Subject: ARM: S3C64XX: Kill CONFIG_PLAT_S3C64XX

CONFIG_PLAT_S3C64XX has been kept in place way too long since it was
marked as temporary in commit

110d85a ARM: S3C64XX: Eliminate plat-s3c64xx

After fixing all users of it in previous patches, this patch finally
kills this temporary Kconfig entry.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/Kconfig              |  2 ++
 arch/arm/mach-s3c64xx/Kconfig | 11 -----------
 2 files changed, 2 insertions(+), 11 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 4a329c7277b1..4270cd7e7b67 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -737,11 +737,13 @@ config ARCH_S3C64XX
 	select NEED_MACH_GPIO_H
 	select NO_IOPORT
 	select PLAT_SAMSUNG
+	select PM_GENERIC_DOMAINS
 	select S3C_DEV_NAND
 	select S3C_GPIO_TRACK
 	select SAMSUNG_ATAGS
 	select SAMSUNG_CLKSRC
 	select SAMSUNG_GPIOLIB_4BIT
+	select SAMSUNG_WAKEMASK
 	select SAMSUNG_WDT_RESET
 	select USB_ARCH_HAS_OHCI
 	help
diff --git a/arch/arm/mach-s3c64xx/Kconfig b/arch/arm/mach-s3c64xx/Kconfig
index afb511395800..a2d5bb33647d 100644
--- a/arch/arm/mach-s3c64xx/Kconfig
+++ b/arch/arm/mach-s3c64xx/Kconfig
@@ -5,17 +5,6 @@
 
 if ARCH_S3C64XX
 
-# temporary until we can eliminate all drivers using it.
-config PLAT_S3C64XX
-	bool
-	depends on ARCH_S3C64XX
-	default y
-	select PM_GENERIC_DOMAINS
-	select SAMSUNG_WAKEMASK
-	help
-	  Base platform code for any Samsung S3C64XX device
-
-
 # Configuration options for the S3C6410 CPU
 
 config CPU_S3C6400
-- 
cgit 


From 21b190d2499057b5deafbf11d577494db43b80db Mon Sep 17 00:00:00 2001
From: Sylwester Nawrocki <s.nawrocki@samsung.com>
Date: Sun, 6 Oct 2013 09:14:39 +0900
Subject: ARM: dts: Add MIPI PHY node to exynos4.dtsi

Add PHY provider node for the MIPI CSIS and MIPI DSIM PHYs.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/boot/dts/exynos4.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
index caadc0257342..a73eeb5f258f 100644
--- a/arch/arm/boot/dts/exynos4.dtsi
+++ b/arch/arm/boot/dts/exynos4.dtsi
@@ -49,6 +49,12 @@
 		reg = <0x10000000 0x100>;
 	};
 
+	mipi_phy: video-phy@10020710 {
+		compatible = "samsung,s5pv210-mipi-video-phy";
+		reg = <0x10020710 8>;
+		#phy-cells = <1>;
+	};
+
 	pd_mfc: mfc-power-domain@10023C40 {
 		compatible = "samsung,exynos4210-pd";
 		reg = <0x10023C40 0x20>;
@@ -161,6 +167,8 @@
 			clock-names = "csis", "sclk_csis";
 			bus-width = <4>;
 			samsung,power-domain = <&pd_cam>;
+			phys = <&mipi_phy 0>;
+			phy-names = "csis";
 			status = "disabled";
 			#address-cells = <1>;
 			#size-cells = <0>;
@@ -174,6 +182,8 @@
 			clock-names = "csis", "sclk_csis";
 			bus-width = <2>;
 			samsung,power-domain = <&pd_cam>;
+			phys = <&mipi_phy 2>;
+			phy-names = "csis";
 			status = "disabled";
 			#address-cells = <1>;
 			#size-cells = <0>;
-- 
cgit 


From c75ec764cf4746a2406278ffa16f590c5db290a7 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 1 Oct 2013 17:41:58 -0400
Subject: sysfs: add sysfs_open_file_mutex

Add a separate mutex to protect sysfs_open_dirent->buffers list.  This
will allow performing sleepable operations while traversing
sysfs_buffers, which will be renamed to sysfs_open_file.

Note that currently sysfs_open_dirent->buffers list isn't being used
for anything and this patch doesn't make any functional difference.
It will be used to merge regular and bin file supports.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/file.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 7dfcc3317490..499cff8554fc 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -25,15 +25,17 @@
 #include "sysfs.h"
 
 /*
- * There's one sysfs_buffer for each open file and one
- * sysfs_open_dirent for each sysfs_dirent with one or more open
- * files.
+ * There's one sysfs_buffer for each open file and one sysfs_open_dirent
+ * for each sysfs_dirent with one or more open files.
  *
- * filp->private_data points to sysfs_buffer and
- * sysfs_dirent->s_attr.open points to sysfs_open_dirent.  s_attr.open
- * is protected by sysfs_open_dirent_lock.
+ * sysfs_dirent->s_attr.open points to sysfs_open_dirent.  s_attr.open is
+ * protected by sysfs_open_dirent_lock.
+ *
+ * filp->private_data points to sysfs_buffer which is chained at
+ * sysfs_open_dirent->buffers, which is protected by sysfs_open_file_mutex.
  */
 static DEFINE_SPINLOCK(sysfs_open_dirent_lock);
+static DEFINE_MUTEX(sysfs_open_file_mutex);
 
 struct sysfs_open_dirent {
 	atomic_t		refcnt;
@@ -272,6 +274,7 @@ static int sysfs_get_open_dirent(struct sysfs_dirent *sd,
 	struct sysfs_open_dirent *od, *new_od = NULL;
 
  retry:
+	mutex_lock(&sysfs_open_file_mutex);
 	spin_lock_irq(&sysfs_open_dirent_lock);
 
 	if (!sd->s_attr.open && new_od) {
@@ -286,6 +289,7 @@ static int sysfs_get_open_dirent(struct sysfs_dirent *sd,
 	}
 
 	spin_unlock_irq(&sysfs_open_dirent_lock);
+	mutex_unlock(&sysfs_open_file_mutex);
 
 	if (od) {
 		kfree(new_od);
@@ -321,6 +325,7 @@ static void sysfs_put_open_dirent(struct sysfs_dirent *sd,
 	struct sysfs_open_dirent *od = sd->s_attr.open;
 	unsigned long flags;
 
+	mutex_lock(&sysfs_open_file_mutex);
 	spin_lock_irqsave(&sysfs_open_dirent_lock, flags);
 
 	list_del(&buffer->list);
@@ -330,6 +335,7 @@ static void sysfs_put_open_dirent(struct sysfs_dirent *sd,
 		od = NULL;
 
 	spin_unlock_irqrestore(&sysfs_open_dirent_lock, flags);
+	mutex_unlock(&sysfs_open_file_mutex);
 
 	kfree(od);
 }
-- 
cgit 


From 58282d8dc2e7cf2b87c8fee94d7138ed08e0a2e5 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 1 Oct 2013 17:41:59 -0400
Subject: sysfs: rename sysfs_buffer to sysfs_open_file

sysfs read path will be converted to use seq_file which will handle
buffering making sysfs_buffer a misnomer.  Rename sysfs_buffer to
sysfs_open_file, and sysfs_open_dirent->buffers to ->files.

This path is pure rename.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/file.c | 127 ++++++++++++++++++++++++++++----------------------------
 1 file changed, 63 insertions(+), 64 deletions(-)

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 499cff8554fc..4b55bcf4422e 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -25,14 +25,14 @@
 #include "sysfs.h"
 
 /*
- * There's one sysfs_buffer for each open file and one sysfs_open_dirent
+ * There's one sysfs_open_file for each open file and one sysfs_open_dirent
  * for each sysfs_dirent with one or more open files.
  *
  * sysfs_dirent->s_attr.open points to sysfs_open_dirent.  s_attr.open is
  * protected by sysfs_open_dirent_lock.
  *
- * filp->private_data points to sysfs_buffer which is chained at
- * sysfs_open_dirent->buffers, which is protected by sysfs_open_file_mutex.
+ * filp->private_data points to sysfs_open_file which is chained at
+ * sysfs_open_dirent->files, which is protected by sysfs_open_file_mutex.
  */
 static DEFINE_SPINLOCK(sysfs_open_dirent_lock);
 static DEFINE_MUTEX(sysfs_open_file_mutex);
@@ -41,10 +41,10 @@ struct sysfs_open_dirent {
 	atomic_t		refcnt;
 	atomic_t		event;
 	wait_queue_head_t	poll;
-	struct list_head	buffers; /* goes through sysfs_buffer.list */
+	struct list_head	files; /* goes through sysfs_open_file.list */
 };
 
-struct sysfs_buffer {
+struct sysfs_open_file {
 	size_t			count;
 	char			*page;
 	struct mutex		mutex;
@@ -75,7 +75,7 @@ static const struct sysfs_ops *sysfs_file_ops(struct sysfs_dirent *sd)
  *	This is called only once, on the file's first read unless an error
  *	is returned.
  */
-static int fill_read_buffer(struct dentry *dentry, struct sysfs_buffer *buffer)
+static int fill_read_buffer(struct dentry *dentry, struct sysfs_open_file *of)
 {
 	struct sysfs_dirent *attr_sd = dentry->d_fsdata;
 	struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
@@ -83,19 +83,19 @@ static int fill_read_buffer(struct dentry *dentry, struct sysfs_buffer *buffer)
 	int ret = 0;
 	ssize_t count;
 
-	if (!buffer->page)
-		buffer->page = (char *) get_zeroed_page(GFP_KERNEL);
-	if (!buffer->page)
+	if (!of->page)
+		of->page = (char *) get_zeroed_page(GFP_KERNEL);
+	if (!of->page)
 		return -ENOMEM;
 
 	/* need attr_sd for attr and ops, its parent for kobj */
 	if (!sysfs_get_active(attr_sd))
 		return -ENODEV;
 
-	buffer->event = atomic_read(&attr_sd->s_attr.open->event);
+	of->event = atomic_read(&attr_sd->s_attr.open->event);
 
 	ops = sysfs_file_ops(attr_sd);
-	count = ops->show(kobj, attr_sd->s_attr.attr, buffer->page);
+	count = ops->show(kobj, attr_sd->s_attr.attr, of->page);
 
 	sysfs_put_active(attr_sd);
 
@@ -110,7 +110,7 @@ static int fill_read_buffer(struct dentry *dentry, struct sysfs_buffer *buffer)
 		count = PAGE_SIZE - 1;
 	}
 	if (count >= 0)
-		buffer->count = count;
+		of->count = count;
 	else
 		ret = count;
 	return ret;
@@ -138,63 +138,62 @@ static int fill_read_buffer(struct dentry *dentry, struct sysfs_buffer *buffer)
 static ssize_t
 sysfs_read_file(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 {
-	struct sysfs_buffer *buffer = file->private_data;
+	struct sysfs_open_file *of = file->private_data;
 	ssize_t retval = 0;
 
-	mutex_lock(&buffer->mutex);
+	mutex_lock(&of->mutex);
 	/*
 	 * Fill on zero offset and the first read so that silly things like
 	 * "dd bs=1 skip=N" can work on sysfs files.
 	 */
-	if (*ppos == 0 || !buffer->page) {
-		retval = fill_read_buffer(file->f_path.dentry, buffer);
+	if (*ppos == 0 || !of->page) {
+		retval = fill_read_buffer(file->f_path.dentry, of);
 		if (retval)
 			goto out;
 	}
 	pr_debug("%s: count = %zd, ppos = %lld, buf = %s\n",
-		 __func__, count, *ppos, buffer->page);
-	retval = simple_read_from_buffer(buf, count, ppos, buffer->page,
-					 buffer->count);
+		 __func__, count, *ppos, of->page);
+	retval = simple_read_from_buffer(buf, count, ppos, of->page, of->count);
 out:
-	mutex_unlock(&buffer->mutex);
+	mutex_unlock(&of->mutex);
 	return retval;
 }
 
 /**
  *	fill_write_buffer - copy buffer from userspace.
- *	@buffer:	data buffer for file.
+ *	@of:		open file struct.
  *	@buf:		data from user.
  *	@count:		number of bytes in @userbuf.
  *
- *	Allocate @buffer->page if it hasn't been already, then
- *	copy the user-supplied buffer into it.
+ *	Allocate @of->page if it hasn't been already, then copy the
+ *	user-supplied buffer into it.
  */
-static int fill_write_buffer(struct sysfs_buffer *buffer,
+static int fill_write_buffer(struct sysfs_open_file *of,
 			     const char __user *buf, size_t count)
 {
 	int error;
 
-	if (!buffer->page)
-		buffer->page = (char *)get_zeroed_page(GFP_KERNEL);
-	if (!buffer->page)
+	if (!of->page)
+		of->page = (char *)get_zeroed_page(GFP_KERNEL);
+	if (!of->page)
 		return -ENOMEM;
 
 	if (count >= PAGE_SIZE)
 		count = PAGE_SIZE - 1;
-	error = copy_from_user(buffer->page, buf, count);
+	error = copy_from_user(of->page, buf, count);
 
 	/*
 	 * If buf is assumed to contain a string, terminate it by \0, so
 	 * e.g. sscanf() can scan the string easily.
 	 */
-	buffer->page[count] = 0;
+	of->page[count] = 0;
 	return error ? -EFAULT : count;
 }
 
 /**
  *	flush_write_buffer - push buffer to kobject.
  *	@dentry:	dentry to the attribute
- *	@buffer:	data buffer for file.
+ *	@of:		open file
  *	@count:		number of bytes
  *
  *	Get the correct pointers for the kobject and the attribute we're
@@ -202,7 +201,7 @@ static int fill_write_buffer(struct sysfs_buffer *buffer,
  *	passing the buffer that we acquired in fill_write_buffer().
  */
 static int flush_write_buffer(struct dentry *dentry,
-			      struct sysfs_buffer *buffer, size_t count)
+			      struct sysfs_open_file *of, size_t count)
 {
 	struct sysfs_dirent *attr_sd = dentry->d_fsdata;
 	struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
@@ -214,7 +213,7 @@ static int flush_write_buffer(struct dentry *dentry,
 		return -ENODEV;
 
 	ops = sysfs_file_ops(attr_sd);
-	rc = ops->store(kobj, attr_sd->s_attr.attr, buffer->page, count);
+	rc = ops->store(kobj, attr_sd->s_attr.attr, of->page, count);
 
 	sysfs_put_active(attr_sd);
 
@@ -240,27 +239,26 @@ static int flush_write_buffer(struct dentry *dentry,
 static ssize_t sysfs_write_file(struct file *file, const char __user *buf,
 				size_t count, loff_t *ppos)
 {
-	struct sysfs_buffer *buffer = file->private_data;
+	struct sysfs_open_file *of = file->private_data;
 	ssize_t len;
 
-	mutex_lock(&buffer->mutex);
-	len = fill_write_buffer(buffer, buf, count);
+	mutex_lock(&of->mutex);
+	len = fill_write_buffer(of, buf, count);
 	if (len > 0)
-		len = flush_write_buffer(file->f_path.dentry, buffer, len);
+		len = flush_write_buffer(file->f_path.dentry, of, len);
 	if (len > 0)
 		*ppos += len;
-	mutex_unlock(&buffer->mutex);
+	mutex_unlock(&of->mutex);
 	return len;
 }
 
 /**
  *	sysfs_get_open_dirent - get or create sysfs_open_dirent
  *	@sd: target sysfs_dirent
- *	@buffer: sysfs_buffer for this instance of open
+ *	@of: sysfs_open_file for this instance of open
  *
  *	If @sd->s_attr.open exists, increment its reference count;
- *	otherwise, create one.  @buffer is chained to the buffers
- *	list.
+ *	otherwise, create one.  @of is chained to the files list.
  *
  *	LOCKING:
  *	Kernel thread context (may sleep).
@@ -269,7 +267,7 @@ static ssize_t sysfs_write_file(struct file *file, const char __user *buf,
  *	0 on success, -errno on failure.
  */
 static int sysfs_get_open_dirent(struct sysfs_dirent *sd,
-				 struct sysfs_buffer *buffer)
+				 struct sysfs_open_file *of)
 {
 	struct sysfs_open_dirent *od, *new_od = NULL;
 
@@ -285,7 +283,7 @@ static int sysfs_get_open_dirent(struct sysfs_dirent *sd,
 	od = sd->s_attr.open;
 	if (od) {
 		atomic_inc(&od->refcnt);
-		list_add_tail(&buffer->list, &od->buffers);
+		list_add_tail(&of->list, &od->files);
 	}
 
 	spin_unlock_irq(&sysfs_open_dirent_lock);
@@ -304,23 +302,23 @@ static int sysfs_get_open_dirent(struct sysfs_dirent *sd,
 	atomic_set(&new_od->refcnt, 0);
 	atomic_set(&new_od->event, 1);
 	init_waitqueue_head(&new_od->poll);
-	INIT_LIST_HEAD(&new_od->buffers);
+	INIT_LIST_HEAD(&new_od->files);
 	goto retry;
 }
 
 /**
  *	sysfs_put_open_dirent - put sysfs_open_dirent
  *	@sd: target sysfs_dirent
- *	@buffer: associated sysfs_buffer
+ *	@of: associated sysfs_open_file
  *
- *	Put @sd->s_attr.open and unlink @buffer from the buffers list.
- *	If reference count reaches zero, disassociate and free it.
+ *	Put @sd->s_attr.open and unlink @of from the files list.  If
+ *	reference count reaches zero, disassociate and free it.
  *
  *	LOCKING:
  *	None.
  */
 static void sysfs_put_open_dirent(struct sysfs_dirent *sd,
-				  struct sysfs_buffer *buffer)
+				  struct sysfs_open_file *of)
 {
 	struct sysfs_open_dirent *od = sd->s_attr.open;
 	unsigned long flags;
@@ -328,7 +326,7 @@ static void sysfs_put_open_dirent(struct sysfs_dirent *sd,
 	mutex_lock(&sysfs_open_file_mutex);
 	spin_lock_irqsave(&sysfs_open_dirent_lock, flags);
 
-	list_del(&buffer->list);
+	list_del(&of->list);
 	if (atomic_dec_and_test(&od->refcnt))
 		sd->s_attr.open = NULL;
 	else
@@ -344,7 +342,7 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
 {
 	struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
 	struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
-	struct sysfs_buffer *buffer;
+	struct sysfs_open_file *of;
 	const struct sysfs_ops *ops;
 	int error = -EACCES;
 
@@ -377,19 +375,20 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
 			goto err_out;
 	}
 
-	/* No error? Great, allocate a buffer for the file, and store it
-	 * it in file->private_data for easy access.
+	/*
+	 * No error? Great, allocate a sysfs_open_file for the file, and
+	 * store it it in file->private_data for easy access.
 	 */
 	error = -ENOMEM;
-	buffer = kzalloc(sizeof(struct sysfs_buffer), GFP_KERNEL);
-	if (!buffer)
+	of = kzalloc(sizeof(struct sysfs_open_file), GFP_KERNEL);
+	if (!of)
 		goto err_out;
 
-	mutex_init(&buffer->mutex);
-	file->private_data = buffer;
+	mutex_init(&of->mutex);
+	file->private_data = of;
 
 	/* make sure we have open dirent struct */
-	error = sysfs_get_open_dirent(attr_sd, buffer);
+	error = sysfs_get_open_dirent(attr_sd, of);
 	if (error)
 		goto err_free;
 
@@ -398,7 +397,7 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
 	return 0;
 
  err_free:
-	kfree(buffer);
+	kfree(of);
  err_out:
 	sysfs_put_active(attr_sd);
 	return error;
@@ -407,13 +406,13 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
 static int sysfs_release(struct inode *inode, struct file *filp)
 {
 	struct sysfs_dirent *sd = filp->f_path.dentry->d_fsdata;
-	struct sysfs_buffer *buffer = filp->private_data;
+	struct sysfs_open_file *of = filp->private_data;
 
-	sysfs_put_open_dirent(sd, buffer);
+	sysfs_put_open_dirent(sd, of);
 
-	if (buffer->page)
-		free_page((unsigned long)buffer->page);
-	kfree(buffer);
+	if (of->page)
+		free_page((unsigned long)of->page);
+	kfree(of);
 
 	return 0;
 }
@@ -433,7 +432,7 @@ static int sysfs_release(struct inode *inode, struct file *filp)
  */
 static unsigned int sysfs_poll(struct file *filp, poll_table *wait)
 {
-	struct sysfs_buffer *buffer = filp->private_data;
+	struct sysfs_open_file *of = filp->private_data;
 	struct sysfs_dirent *attr_sd = filp->f_path.dentry->d_fsdata;
 	struct sysfs_open_dirent *od = attr_sd->s_attr.open;
 
@@ -445,7 +444,7 @@ static unsigned int sysfs_poll(struct file *filp, poll_table *wait)
 
 	sysfs_put_active(attr_sd);
 
-	if (buffer->event != atomic_read(&od->event))
+	if (of->event != atomic_read(&od->event))
 		goto trigger;
 
 	return DEFAULT_POLLMASK;
-- 
cgit 


From bcafe4eea3e58a60e9c2c63781700a9ab1d70f93 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 1 Oct 2013 17:42:00 -0400
Subject: sysfs: add sysfs_open_file->sd and ->file

sysfs will be converted to use seq_file for read path, which will make
it difficult to pass around multiple pointers directly.  This patch
adds sysfs_open_file->sd and ->file so that we can reach all the
necessary data structures from sysfs_open_file.

flush_write_buffer() is updated to drop @dentry which was used to
discover the sysfs_dirent as it's now available through
sysfs_open_file->sd.

This patch doesn't cause any behavior difference.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/file.c | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 4b55bcf4422e..af6e9092a679 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -45,6 +45,8 @@ struct sysfs_open_dirent {
 };
 
 struct sysfs_open_file {
+	struct sysfs_dirent	*sd;
+	struct file		*file;
 	size_t			count;
 	char			*page;
 	struct mutex		mutex;
@@ -192,7 +194,6 @@ static int fill_write_buffer(struct sysfs_open_file *of,
 
 /**
  *	flush_write_buffer - push buffer to kobject.
- *	@dentry:	dentry to the attribute
  *	@of:		open file
  *	@count:		number of bytes
  *
@@ -200,22 +201,20 @@ static int fill_write_buffer(struct sysfs_open_file *of,
  *	dealing with, then call the store() method for the attribute,
  *	passing the buffer that we acquired in fill_write_buffer().
  */
-static int flush_write_buffer(struct dentry *dentry,
-			      struct sysfs_open_file *of, size_t count)
+static int flush_write_buffer(struct sysfs_open_file *of, size_t count)
 {
-	struct sysfs_dirent *attr_sd = dentry->d_fsdata;
-	struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
+	struct kobject *kobj = of->sd->s_parent->s_dir.kobj;
 	const struct sysfs_ops *ops;
 	int rc;
 
-	/* need attr_sd for attr and ops, its parent for kobj */
-	if (!sysfs_get_active(attr_sd))
+	/* need @of->sd for attr and ops, its parent for kobj */
+	if (!sysfs_get_active(of->sd))
 		return -ENODEV;
 
-	ops = sysfs_file_ops(attr_sd);
-	rc = ops->store(kobj, attr_sd->s_attr.attr, of->page, count);
+	ops = sysfs_file_ops(of->sd);
+	rc = ops->store(kobj, of->sd->s_attr.attr, of->page, count);
 
-	sysfs_put_active(attr_sd);
+	sysfs_put_active(of->sd);
 
 	return rc;
 }
@@ -245,7 +244,7 @@ static ssize_t sysfs_write_file(struct file *file, const char __user *buf,
 	mutex_lock(&of->mutex);
 	len = fill_write_buffer(of, buf, count);
 	if (len > 0)
-		len = flush_write_buffer(file->f_path.dentry, of, len);
+		len = flush_write_buffer(of, len);
 	if (len > 0)
 		*ppos += len;
 	mutex_unlock(&of->mutex);
@@ -385,6 +384,8 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
 		goto err_out;
 
 	mutex_init(&of->mutex);
+	of->sd = attr_sd;
+	of->file = file;
 	file->private_data = of;
 
 	/* make sure we have open dirent struct */
-- 
cgit 


From 8ef445f0807457dd7d158e43d9e8f9568c47910d Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 1 Oct 2013 17:42:01 -0400
Subject: sysfs: use transient write buffer

There isn't much to be gained by keeping around kernel buffer while a
file is open especially as the read path planned to be converted to
use seq_file and won't use the buffer.  This patch makes
sysfs_write_file() use per-write transient buffer instead of
sysfs_open_file->page.

This simplifies the write path, enables removing sysfs_open_file->page
once read path is updated and will help merging bin file write path
which already requires the use of a transient buffer due to a locking
order issue.

As the function comments of flush_write_buffer() and
sysfs_write_buffer() are being updated anyway, reformat them so that
they're more conventional.

v2: Use min_t() instead of min() in sysfs_write_file() to avoid build
    warning on arm.  Reported by build test robot.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/file.c | 114 ++++++++++++++++++++++++++------------------------------
 1 file changed, 52 insertions(+), 62 deletions(-)

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index af6e9092a679..53cc096e6a1b 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -162,92 +162,82 @@ out:
 }
 
 /**
- *	fill_write_buffer - copy buffer from userspace.
- *	@of:		open file struct.
- *	@buf:		data from user.
- *	@count:		number of bytes in @userbuf.
+ * flush_write_buffer - push buffer to kobject
+ * @of: open file
+ * @buf: data buffer for file
+ * @count: number of bytes
  *
- *	Allocate @of->page if it hasn't been already, then copy the
- *	user-supplied buffer into it.
+ * Get the correct pointers for the kobject and the attribute we're dealing
+ * with, then call the store() method for it with @buf.
  */
-static int fill_write_buffer(struct sysfs_open_file *of,
-			     const char __user *buf, size_t count)
-{
-	int error;
-
-	if (!of->page)
-		of->page = (char *)get_zeroed_page(GFP_KERNEL);
-	if (!of->page)
-		return -ENOMEM;
-
-	if (count >= PAGE_SIZE)
-		count = PAGE_SIZE - 1;
-	error = copy_from_user(of->page, buf, count);
-
-	/*
-	 * If buf is assumed to contain a string, terminate it by \0, so
-	 * e.g. sscanf() can scan the string easily.
-	 */
-	of->page[count] = 0;
-	return error ? -EFAULT : count;
-}
-
-/**
- *	flush_write_buffer - push buffer to kobject.
- *	@of:		open file
- *	@count:		number of bytes
- *
- *	Get the correct pointers for the kobject and the attribute we're
- *	dealing with, then call the store() method for the attribute,
- *	passing the buffer that we acquired in fill_write_buffer().
- */
-static int flush_write_buffer(struct sysfs_open_file *of, size_t count)
+static int flush_write_buffer(struct sysfs_open_file *of, char *buf,
+			      size_t count)
 {
 	struct kobject *kobj = of->sd->s_parent->s_dir.kobj;
 	const struct sysfs_ops *ops;
-	int rc;
+	int rc = 0;
 
-	/* need @of->sd for attr and ops, its parent for kobj */
-	if (!sysfs_get_active(of->sd))
+	/*
+	 * Need @of->sd for attr and ops, its parent for kobj.  @of->mutex
+	 * nests outside active ref and is just to ensure that the ops
+	 * aren't called concurrently for the same open file.
+	 */
+	mutex_lock(&of->mutex);
+	if (!sysfs_get_active(of->sd)) {
+		mutex_unlock(&of->mutex);
 		return -ENODEV;
+	}
 
 	ops = sysfs_file_ops(of->sd);
-	rc = ops->store(kobj, of->sd->s_attr.attr, of->page, count);
+	rc = ops->store(kobj, of->sd->s_attr.attr, buf, count);
 
 	sysfs_put_active(of->sd);
+	mutex_unlock(&of->mutex);
 
 	return rc;
 }
 
 /**
- *	sysfs_write_file - write an attribute.
- *	@file:	file pointer
- *	@buf:	data to write
- *	@count:	number of bytes
- *	@ppos:	starting offset
+ * sysfs_write_file - write an attribute
+ * @file: file pointer
+ * @user_buf: data to write
+ * @count: number of bytes
+ * @ppos: starting offset
  *
- *	Similar to sysfs_read_file(), though working in the opposite direction.
- *	We allocate and fill the data from the user in fill_write_buffer(),
- *	then push it to the kobject in flush_write_buffer().
- *	There is no easy way for us to know if userspace is only doing a partial
- *	write, so we don't support them. We expect the entire buffer to come
- *	on the first write.
- *	Hint: if you're writing a value, first read the file, modify only the
- *	the value you're changing, then write entire buffer back.
+ * Copy data in from userland and pass it to the matching
+ * sysfs_ops->store() by invoking flush_write_buffer().
+ *
+ * There is no easy way for us to know if userspace is only doing a partial
+ * write, so we don't support them. We expect the entire buffer to come on
+ * the first write.  Hint: if you're writing a value, first read the file,
+ * modify only the the value you're changing, then write entire buffer
+ * back.
  */
-static ssize_t sysfs_write_file(struct file *file, const char __user *buf,
+static ssize_t sysfs_write_file(struct file *file, const char __user *user_buf,
 				size_t count, loff_t *ppos)
 {
 	struct sysfs_open_file *of = file->private_data;
-	ssize_t len;
+	ssize_t len = min_t(size_t, count, PAGE_SIZE - 1);
+	char *buf;
 
-	mutex_lock(&of->mutex);
-	len = fill_write_buffer(of, buf, count);
-	if (len > 0)
-		len = flush_write_buffer(of, len);
+	if (!len)
+		return 0;
+
+	buf = kmalloc(len + 1, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	if (copy_from_user(buf, user_buf, len)) {
+		len = -EFAULT;
+		goto out_free;
+	}
+	buf[len] = '\0';	/* guarantee string termination */
+
+	len = flush_write_buffer(of, buf, len);
 	if (len > 0)
 		*ppos += len;
-	mutex_unlock(&of->mutex);
+out_free:
+	kfree(buf);
 	return len;
 }
 
-- 
cgit 


From 13c589d5b0ac654d9da7e490a2dd548e6b86b4a5 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 1 Oct 2013 17:42:02 -0400
Subject: sysfs: use seq_file when reading regular files

sysfs read path implements its own buffering scheme between userland
and kernel callbacks, which essentially is a degenerate duplicate of
seq_file.  This patch replaces the custom read buffering
implementation in sysfs with seq_file.

While the amount of code reduction is small, this reduces low level
hairiness and enables future development of a new versatile API based
on seq_file so that sysfs features can be shared with other
subsystems.

As write path was already converted to not use sysfs_open_file->page,
this patch makes ->page and ->count unused and removes them.

Userland behavior remains the same except for some extreme corner
cases - e.g. sysfs will now regenerate the content each time a file is
read after a non-contiguous seek whereas the original code would keep
using the same content.  While this is a userland visible behavior
change, it is extremely unlikely to be noticeable and brings sysfs
behavior closer to that of procfs.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Kay Sievers <kay@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/file.c | 164 +++++++++++++++++++++++++-------------------------------
 1 file changed, 73 insertions(+), 91 deletions(-)

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 53cc096e6a1b..4921bda3a37a 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -21,6 +21,7 @@
 #include <linux/mutex.h>
 #include <linux/limits.h>
 #include <linux/uaccess.h>
+#include <linux/seq_file.h>
 
 #include "sysfs.h"
 
@@ -31,7 +32,8 @@
  * sysfs_dirent->s_attr.open points to sysfs_open_dirent.  s_attr.open is
  * protected by sysfs_open_dirent_lock.
  *
- * filp->private_data points to sysfs_open_file which is chained at
+ * filp->private_data points to seq_file whose ->private points to
+ * sysfs_open_file.  sysfs_open_files are chained at
  * sysfs_open_dirent->files, which is protected by sysfs_open_file_mutex.
  */
 static DEFINE_SPINLOCK(sysfs_open_dirent_lock);
@@ -47,13 +49,16 @@ struct sysfs_open_dirent {
 struct sysfs_open_file {
 	struct sysfs_dirent	*sd;
 	struct file		*file;
-	size_t			count;
-	char			*page;
 	struct mutex		mutex;
 	int			event;
 	struct list_head	list;
 };
 
+static struct sysfs_open_file *sysfs_of(struct file *file)
+{
+	return ((struct seq_file *)file->private_data)->private;
+}
+
 /*
  * Determine ktype->sysfs_ops for the given sysfs_dirent.  This function
  * must be called while holding an active reference.
@@ -66,40 +71,54 @@ static const struct sysfs_ops *sysfs_file_ops(struct sysfs_dirent *sd)
 	return kobj->ktype ? kobj->ktype->sysfs_ops : NULL;
 }
 
-/**
- *	fill_read_buffer - allocate and fill buffer from object.
- *	@dentry:	dentry pointer.
- *	@buffer:	data buffer for file.
- *
- *	Allocate @buffer->page, if it hasn't been already, then call the
- *	kobject's show() method to fill the buffer with this attribute's
- *	data.
- *	This is called only once, on the file's first read unless an error
- *	is returned.
+/*
+ * Reads on sysfs are handled through seq_file, which takes care of hairy
+ * details like buffering and seeking.  The following function pipes
+ * sysfs_ops->show() result through seq_file.
  */
-static int fill_read_buffer(struct dentry *dentry, struct sysfs_open_file *of)
+static int sysfs_seq_show(struct seq_file *sf, void *v)
 {
-	struct sysfs_dirent *attr_sd = dentry->d_fsdata;
-	struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
+	struct sysfs_open_file *of = sf->private;
+	struct kobject *kobj = of->sd->s_parent->s_dir.kobj;
 	const struct sysfs_ops *ops;
-	int ret = 0;
+	char *buf;
 	ssize_t count;
 
-	if (!of->page)
-		of->page = (char *) get_zeroed_page(GFP_KERNEL);
-	if (!of->page)
-		return -ENOMEM;
+	/* acquire buffer and ensure that it's >= PAGE_SIZE */
+	count = seq_get_buf(sf, &buf);
+	if (count < PAGE_SIZE) {
+		seq_commit(sf, -1);
+		return 0;
+	}
 
-	/* need attr_sd for attr and ops, its parent for kobj */
-	if (!sysfs_get_active(attr_sd))
+	/*
+	 * Need @of->sd for attr and ops, its parent for kobj.  @of->mutex
+	 * nests outside active ref and is just to ensure that the ops
+	 * aren't called concurrently for the same open file.
+	 */
+	mutex_lock(&of->mutex);
+	if (!sysfs_get_active(of->sd)) {
+		mutex_unlock(&of->mutex);
 		return -ENODEV;
+	}
 
-	of->event = atomic_read(&attr_sd->s_attr.open->event);
+	of->event = atomic_read(&of->sd->s_attr.open->event);
 
-	ops = sysfs_file_ops(attr_sd);
-	count = ops->show(kobj, attr_sd->s_attr.attr, of->page);
+	/*
+	 * Lookup @ops and invoke show().  Control may reach here via seq
+	 * file lseek even if @ops->show() isn't implemented.
+	 */
+	ops = sysfs_file_ops(of->sd);
+	if (ops->show)
+		count = ops->show(kobj, of->sd->s_attr.attr, buf);
+	else
+		count = 0;
 
-	sysfs_put_active(attr_sd);
+	sysfs_put_active(of->sd);
+	mutex_unlock(&of->mutex);
+
+	if (count < 0)
+		return count;
 
 	/*
 	 * The code works fine with PAGE_SIZE return but it's likely to
@@ -111,54 +130,8 @@ static int fill_read_buffer(struct dentry *dentry, struct sysfs_open_file *of)
 		/* Try to struggle along */
 		count = PAGE_SIZE - 1;
 	}
-	if (count >= 0)
-		of->count = count;
-	else
-		ret = count;
-	return ret;
-}
-
-/**
- *	sysfs_read_file - read an attribute.
- *	@file:	file pointer.
- *	@buf:	buffer to fill.
- *	@count:	number of bytes to read.
- *	@ppos:	starting offset in file.
- *
- *	Userspace wants to read an attribute file. The attribute descriptor
- *	is in the file's ->d_fsdata. The target object is in the directory's
- *	->d_fsdata.
- *
- *	We call fill_read_buffer() to allocate and fill the buffer from the
- *	object's show() method exactly once (if the read is happening from
- *	the beginning of the file). That should fill the entire buffer with
- *	all the data the object has to offer for that attribute.
- *	We then call flush_read_buffer() to copy the buffer to userspace
- *	in the increments specified.
- */
-
-static ssize_t
-sysfs_read_file(struct file *file, char __user *buf, size_t count, loff_t *ppos)
-{
-	struct sysfs_open_file *of = file->private_data;
-	ssize_t retval = 0;
-
-	mutex_lock(&of->mutex);
-	/*
-	 * Fill on zero offset and the first read so that silly things like
-	 * "dd bs=1 skip=N" can work on sysfs files.
-	 */
-	if (*ppos == 0 || !of->page) {
-		retval = fill_read_buffer(file->f_path.dentry, of);
-		if (retval)
-			goto out;
-	}
-	pr_debug("%s: count = %zd, ppos = %lld, buf = %s\n",
-		 __func__, count, *ppos, of->page);
-	retval = simple_read_from_buffer(buf, count, ppos, of->page, of->count);
-out:
-	mutex_unlock(&of->mutex);
-	return retval;
+	seq_commit(sf, count);
+	return 0;
 }
 
 /**
@@ -216,7 +189,7 @@ static int flush_write_buffer(struct sysfs_open_file *of, char *buf,
 static ssize_t sysfs_write_file(struct file *file, const char __user *user_buf,
 				size_t count, loff_t *ppos)
 {
-	struct sysfs_open_file *of = file->private_data;
+	struct sysfs_open_file *of = sysfs_of(file);
 	ssize_t len = min_t(size_t, count, PAGE_SIZE - 1);
 	char *buf;
 
@@ -364,10 +337,7 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
 			goto err_out;
 	}
 
-	/*
-	 * No error? Great, allocate a sysfs_open_file for the file, and
-	 * store it it in file->private_data for easy access.
-	 */
+	/* allocate a sysfs_open_file for the file */
 	error = -ENOMEM;
 	of = kzalloc(sizeof(struct sysfs_open_file), GFP_KERNEL);
 	if (!of)
@@ -376,20 +346,34 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
 	mutex_init(&of->mutex);
 	of->sd = attr_sd;
 	of->file = file;
-	file->private_data = of;
+
+	/*
+	 * Always instantiate seq_file even if read access is not
+	 * implemented or requested.  This unifies private data access and
+	 * most files are readable anyway.
+	 */
+	error = single_open(file, sysfs_seq_show, of);
+	if (error)
+		goto err_free;
+
+	/* seq_file clears PWRITE unconditionally, restore it if WRITE */
+	if (file->f_mode & FMODE_WRITE)
+		file->f_mode |= FMODE_PWRITE;
 
 	/* make sure we have open dirent struct */
 	error = sysfs_get_open_dirent(attr_sd, of);
 	if (error)
-		goto err_free;
+		goto err_close;
 
 	/* open succeeded, put active references */
 	sysfs_put_active(attr_sd);
 	return 0;
 
- err_free:
+err_close:
+	single_release(inode, file);
+err_free:
 	kfree(of);
- err_out:
+err_out:
 	sysfs_put_active(attr_sd);
 	return error;
 }
@@ -397,12 +381,10 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
 static int sysfs_release(struct inode *inode, struct file *filp)
 {
 	struct sysfs_dirent *sd = filp->f_path.dentry->d_fsdata;
-	struct sysfs_open_file *of = filp->private_data;
+	struct sysfs_open_file *of = sysfs_of(filp);
 
 	sysfs_put_open_dirent(sd, of);
-
-	if (of->page)
-		free_page((unsigned long)of->page);
+	single_release(inode, filp);
 	kfree(of);
 
 	return 0;
@@ -423,7 +405,7 @@ static int sysfs_release(struct inode *inode, struct file *filp)
  */
 static unsigned int sysfs_poll(struct file *filp, poll_table *wait)
 {
-	struct sysfs_open_file *of = filp->private_data;
+	struct sysfs_open_file *of = sysfs_of(filp);
 	struct sysfs_dirent *attr_sd = filp->f_path.dentry->d_fsdata;
 	struct sysfs_open_dirent *od = attr_sd->s_attr.open;
 
@@ -481,9 +463,9 @@ void sysfs_notify(struct kobject *k, const char *dir, const char *attr)
 EXPORT_SYMBOL_GPL(sysfs_notify);
 
 const struct file_operations sysfs_file_operations = {
-	.read		= sysfs_read_file,
+	.read		= seq_read,
 	.write		= sysfs_write_file,
-	.llseek		= generic_file_llseek,
+	.llseek		= seq_lseek,
 	.open		= sysfs_open_file,
 	.release	= sysfs_release,
 	.poll		= sysfs_poll,
-- 
cgit 


From af617c93b3975ff5b9e9a0922851dce47766da15 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sun, 6 Oct 2013 09:20:59 +0900
Subject: ARM: dts: Add fixed voltage regulator to simple bus for origen

This has been done for Arndale board vide commit aa3edb65
("ARM: dts: Put Arndale fixed voltage regulators on a simple-bus").
Replicate here for consistency and correctness.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/boot/dts/exynos4210-origen.dts | 21 ++++++++++++++-------
 arch/arm/boot/dts/exynos4412-origen.dts | 21 ++++++++++++++-------
 2 files changed, 28 insertions(+), 14 deletions(-)

diff --git a/arch/arm/boot/dts/exynos4210-origen.dts b/arch/arm/boot/dts/exynos4210-origen.dts
index 382d8c7e2906..d3340db03000 100644
--- a/arch/arm/boot/dts/exynos4210-origen.dts
+++ b/arch/arm/boot/dts/exynos4210-origen.dts
@@ -32,13 +32,20 @@
 		bootargs ="root=/dev/ram0 rw ramdisk=8192 initrd=0x41000000,8M console=ttySAC2,115200 init=/linuxrc";
 	};
 
-	mmc_reg: voltage-regulator {
-	        compatible = "regulator-fixed";
-		regulator-name = "VMEM_VDD_2.8V";
-		regulator-min-microvolt = <2800000>;
-		regulator-max-microvolt = <2800000>;
-		gpio = <&gpx1 1 0>;
-		enable-active-high;
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		mmc_reg: regulator@0 {
+			compatible = "regulator-fixed";
+			reg = <0>;
+			regulator-name = "VMEM_VDD_2.8V";
+			regulator-min-microvolt = <2800000>;
+			regulator-max-microvolt = <2800000>;
+			gpio = <&gpx1 1 0>;
+			enable-active-high;
+		};
 	};
 
 	tmu@100C0000 {
diff --git a/arch/arm/boot/dts/exynos4412-origen.dts b/arch/arm/boot/dts/exynos4412-origen.dts
index 8768b03702e5..d65984c440f6 100644
--- a/arch/arm/boot/dts/exynos4412-origen.dts
+++ b/arch/arm/boot/dts/exynos4412-origen.dts
@@ -32,13 +32,20 @@
 		reg = <0x0203F000 0x1000>;
 	};
 
-	mmc_reg: voltage-regulator {
-		compatible = "regulator-fixed";
-		regulator-name = "VMEM_VDD_2.8V";
-		regulator-min-microvolt = <2800000>;
-		regulator-max-microvolt = <2800000>;
-		gpio = <&gpx1 1 0>;
-		enable-active-high;
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		mmc_reg: regulator@0 {
+			compatible = "regulator-fixed";
+			reg = <0>;
+			regulator-name = "VMEM_VDD_2.8V";
+			regulator-min-microvolt = <2800000>;
+			regulator-max-microvolt = <2800000>;
+			gpio = <&gpx1 1 0>;
+			enable-active-high;
+		};
 	};
 
 	pinctrl@11000000 {
-- 
cgit 


From 8365f763a7816f0b5d04f6cabd359de14b378e52 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sun, 6 Oct 2013 09:21:10 +0900
Subject: ARM: dts: Add reg property to regulator nodes in exynos5250-arndale

For consistency and correctness, since this is a bus, even if not
physical, it is worth to add 'reg' property and unit-address to subnodes.
The 'reg' property would merely be an index. Also for consistency, use
"regulator" as node name as used most commonly across other dts files.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/boot/dts/exynos5250-arndale.dts | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts
index cee55fa33731..0c425476d4db 100644
--- a/arch/arm/boot/dts/exynos5250-arndale.dts
+++ b/arch/arm/boot/dts/exynos5250-arndale.dts
@@ -482,13 +482,15 @@
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		main_dc_reg: fixedregulator@1 {
+		main_dc_reg: regulator@0 {
 			compatible = "regulator-fixed";
+			reg = <0>;
 			regulator-name = "MAIN_DC";
 		};
 
-		mmc_reg: voltage-regulator {
+		mmc_reg: regulator@1 {
 			compatible = "regulator-fixed";
+			reg = <1>;
 			regulator-name = "VDD_33ON_2.8V";
 			regulator-min-microvolt = <2800000>;
 			regulator-max-microvolt = <2800000>;
@@ -496,8 +498,9 @@
 			enable-active-high;
 		};
 
-		reg_hdmi_en: fixedregulator@0 {
+		reg_hdmi_en: regulator@2 {
 			compatible = "regulator-fixed";
+			reg = <2>;
 			regulator-name = "hdmi-en";
 		};
 	};
-- 
cgit 


From 91270162bf8a86bee756da7e931591d9953cb5a8 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 1 Oct 2013 17:42:03 -0400
Subject: sysfs: skip bin_buffer->buffer while reading

After b31ca3f5dfc ("sysfs: fix deadlock"), bin read() first writes
data to bb->buffer and bounces it to a transient kernel buffer which
is then copied out to userland.  The double bouncing doesn't add
anything.  Let's just use the transient buffer directly.

While at it, rename @temp to @buf for clarity.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/bin.c | 21 ++++++++-------------
 1 file changed, 8 insertions(+), 13 deletions(-)

diff --git a/fs/sysfs/bin.c b/fs/sysfs/bin.c
index d49e6ca3345b..d2142c0648eb 100644
--- a/fs/sysfs/bin.c
+++ b/fs/sysfs/bin.c
@@ -72,7 +72,7 @@ read(struct file *file, char __user *userbuf, size_t bytes, loff_t *off)
 	int size = file_inode(file)->i_size;
 	loff_t offs = *off;
 	int count = min_t(size_t, bytes, PAGE_SIZE);
-	char *temp;
+	char *buf;
 
 	if (!bytes)
 		return 0;
@@ -84,23 +84,18 @@ read(struct file *file, char __user *userbuf, size_t bytes, loff_t *off)
 			count = size - offs;
 	}
 
-	temp = kmalloc(count, GFP_KERNEL);
-	if (!temp)
+	buf = kmalloc(count, GFP_KERNEL);
+	if (!buf)
 		return -ENOMEM;
 
 	mutex_lock(&bb->mutex);
+	count = fill_read(file, buf, offs, count);
+	mutex_unlock(&bb->mutex);
 
-	count = fill_read(file, bb->buffer, offs, count);
-	if (count < 0) {
-		mutex_unlock(&bb->mutex);
+	if (count < 0)
 		goto out_free;
-	}
-
-	memcpy(temp, bb->buffer, count);
 
-	mutex_unlock(&bb->mutex);
-
-	if (copy_to_user(userbuf, temp, count)) {
+	if (copy_to_user(userbuf, buf, count)) {
 		count = -EFAULT;
 		goto out_free;
 	}
@@ -110,7 +105,7 @@ read(struct file *file, char __user *userbuf, size_t bytes, loff_t *off)
 	*off = offs + count;
 
  out_free:
-	kfree(temp);
+	kfree(buf);
 	return count;
 }
 
-- 
cgit 


From 3ff65d3cb09ee642363bcaf12c6c38670263d93a Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 1 Oct 2013 17:42:04 -0400
Subject: sysfs: collapse fs/sysfs/bin.c::fill_read() into read()

read() is simple enough and fill_read() being in a separate function
doesn't add anything.  Let's collapse it into read().  This will make
merging bin file handling with regular file.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/bin.c | 36 +++++++++++++++---------------------
 1 file changed, 15 insertions(+), 21 deletions(-)

diff --git a/fs/sysfs/bin.c b/fs/sysfs/bin.c
index d2142c0648eb..60a4e787dc4f 100644
--- a/fs/sysfs/bin.c
+++ b/fs/sysfs/bin.c
@@ -44,30 +44,12 @@ struct bin_buffer {
 	struct hlist_node		list;
 };
 
-static int
-fill_read(struct file *file, char *buffer, loff_t off, size_t count)
+static ssize_t
+read(struct file *file, char __user *userbuf, size_t bytes, loff_t *off)
 {
 	struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
 	struct bin_attribute *attr = attr_sd->s_bin_attr.bin_attr;
 	struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
-	int rc;
-
-	/* need attr_sd for attr, its parent for kobj */
-	if (!sysfs_get_active(attr_sd))
-		return -ENODEV;
-
-	rc = -EIO;
-	if (attr->read)
-		rc = attr->read(file, kobj, attr, buffer, off, count);
-
-	sysfs_put_active(attr_sd);
-
-	return rc;
-}
-
-static ssize_t
-read(struct file *file, char __user *userbuf, size_t bytes, loff_t *off)
-{
 	struct bin_buffer *bb = file->private_data;
 	int size = file_inode(file)->i_size;
 	loff_t offs = *off;
@@ -88,8 +70,20 @@ read(struct file *file, char __user *userbuf, size_t bytes, loff_t *off)
 	if (!buf)
 		return -ENOMEM;
 
+	/* need attr_sd for attr, its parent for kobj */
 	mutex_lock(&bb->mutex);
-	count = fill_read(file, buf, offs, count);
+	if (!sysfs_get_active(attr_sd)) {
+		count = -ENODEV;
+		mutex_unlock(&bb->mutex);
+		goto out_free;
+	}
+
+	if (attr->read)
+		count = attr->read(file, kobj, attr, buf, offs, count);
+	else
+		count = -EIO;
+
+	sysfs_put_active(attr_sd);
 	mutex_unlock(&bb->mutex);
 
 	if (count < 0)
-- 
cgit 


From f9b9a6217cf10fd5d3002627cc13c4789a777213 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 1 Oct 2013 17:42:05 -0400
Subject: sysfs: prepare path write for unified regular / bin file handling

sysfs bin file handling will be merged into the regular file support.
This patch prepares the write path.

bin file write is almost identical to regular file write except that
the write length is capped by the inode size and @off is passed to the
write method.  This patch adds bin file handling to sysfs_write_file()
so that it can handle both regular and bin files.

A new file_operations struct sysfs_bin_operations is added, which
currently only hosts sysfs_write_file() and generic_file_llseek().
This isn't used yet but will eventually replace fs/sysfs/bin.c.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/file.c  | 40 ++++++++++++++++++++++++++++++++++------
 fs/sysfs/sysfs.h |  1 +
 2 files changed, 35 insertions(+), 6 deletions(-)

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 4921bda3a37a..b36473f21824 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -54,6 +54,11 @@ struct sysfs_open_file {
 	struct list_head	list;
 };
 
+static bool sysfs_is_bin(struct sysfs_dirent *sd)
+{
+	return sysfs_type(sd) == SYSFS_KOBJ_BIN_ATTR;
+}
+
 static struct sysfs_open_file *sysfs_of(struct file *file)
 {
 	return ((struct seq_file *)file->private_data)->private;
@@ -138,16 +143,16 @@ static int sysfs_seq_show(struct seq_file *sf, void *v)
  * flush_write_buffer - push buffer to kobject
  * @of: open file
  * @buf: data buffer for file
+ * @off: file offset to write to
  * @count: number of bytes
  *
  * Get the correct pointers for the kobject and the attribute we're dealing
  * with, then call the store() method for it with @buf.
  */
-static int flush_write_buffer(struct sysfs_open_file *of, char *buf,
+static int flush_write_buffer(struct sysfs_open_file *of, char *buf, loff_t off,
 			      size_t count)
 {
 	struct kobject *kobj = of->sd->s_parent->s_dir.kobj;
-	const struct sysfs_ops *ops;
 	int rc = 0;
 
 	/*
@@ -161,8 +166,18 @@ static int flush_write_buffer(struct sysfs_open_file *of, char *buf,
 		return -ENODEV;
 	}
 
-	ops = sysfs_file_ops(of->sd);
-	rc = ops->store(kobj, of->sd->s_attr.attr, buf, count);
+	if (sysfs_is_bin(of->sd)) {
+		struct bin_attribute *battr = of->sd->s_bin_attr.bin_attr;
+
+		rc = -EIO;
+		if (battr->write)
+			rc = battr->write(of->file, kobj, battr, buf, off,
+					  count);
+	} else {
+		const struct sysfs_ops *ops = sysfs_file_ops(of->sd);
+
+		rc = ops->store(kobj, of->sd->s_attr.attr, buf, count);
+	}
 
 	sysfs_put_active(of->sd);
 	mutex_unlock(&of->mutex);
@@ -190,9 +205,17 @@ static ssize_t sysfs_write_file(struct file *file, const char __user *user_buf,
 				size_t count, loff_t *ppos)
 {
 	struct sysfs_open_file *of = sysfs_of(file);
-	ssize_t len = min_t(size_t, count, PAGE_SIZE - 1);
+	ssize_t len = min_t(size_t, count, PAGE_SIZE);
 	char *buf;
 
+	if (sysfs_is_bin(of->sd)) {
+		loff_t size = file_inode(file)->i_size;
+
+		if (size <= *ppos)
+			return 0;
+		len = min_t(ssize_t, len, size - *ppos);
+	}
+
 	if (!len)
 		return 0;
 
@@ -206,7 +229,7 @@ static ssize_t sysfs_write_file(struct file *file, const char __user *user_buf,
 	}
 	buf[len] = '\0';	/* guarantee string termination */
 
-	len = flush_write_buffer(of, buf, len);
+	len = flush_write_buffer(of, buf, *ppos, len);
 	if (len > 0)
 		*ppos += len;
 out_free:
@@ -471,6 +494,11 @@ const struct file_operations sysfs_file_operations = {
 	.poll		= sysfs_poll,
 };
 
+const struct file_operations sysfs_bin_operations = {
+	.write		= sysfs_write_file,
+	.llseek		= generic_file_llseek,
+};
+
 int sysfs_add_file_mode_ns(struct sysfs_dirent *dir_sd,
 			   const struct attribute *attr, int type,
 			   umode_t amode, const void *ns)
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index 4b1d8258b071..f103bac53df7 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -212,6 +212,7 @@ int sysfs_inode_init(void);
  * file.c
  */
 extern const struct file_operations sysfs_file_operations;
+extern const struct file_operations sysfs_bin_operations;
 
 int sysfs_add_file(struct sysfs_dirent *dir_sd,
 		   const struct attribute *attr, int type);
-- 
cgit 


From 2f0c6b7593a590eef7fa35344da57380fcee7581 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 1 Oct 2013 17:42:06 -0400
Subject: sysfs: add sysfs_bin_read()

sysfs bin file handling will be merged into the regular file support.
This patch prepares the read path.

Copy fs/sysfs/bin.c::read() to fs/sysfs/file.c and make it use
sysfs_open_file instead of bin_buffer.  The function is identical copy
except for the use of sysfs_open_file.

The new function is added to sysfs_bin_operations.  This isn't used
yet but will eventually replace fs/sysfs/bin.c.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/file.c | 65 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index b36473f21824..9ba492a3d932 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -139,6 +139,70 @@ static int sysfs_seq_show(struct seq_file *sf, void *v)
 	return 0;
 }
 
+/*
+ * Read method for bin files.  As reading a bin file can have side-effects,
+ * the exact offset and bytes specified in read(2) call should be passed to
+ * the read callback making it difficult to use seq_file.  Implement
+ * simplistic custom buffering for bin files.
+ */
+static ssize_t sysfs_bin_read(struct file *file, char __user *userbuf,
+			      size_t bytes, loff_t *off)
+{
+	struct sysfs_open_file *of = sysfs_of(file);
+	struct bin_attribute *battr = of->sd->s_bin_attr.bin_attr;
+	struct kobject *kobj = of->sd->s_parent->s_dir.kobj;
+	int size = file_inode(file)->i_size;
+	int count = min_t(size_t, bytes, PAGE_SIZE);
+	loff_t offs = *off;
+	char *buf;
+
+	if (!bytes)
+		return 0;
+
+	if (size) {
+		if (offs > size)
+			return 0;
+		if (offs + count > size)
+			count = size - offs;
+	}
+
+	buf = kmalloc(count, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	/* need of->sd for battr, its parent for kobj */
+	mutex_lock(&of->mutex);
+	if (!sysfs_get_active(of->sd)) {
+		count = -ENODEV;
+		mutex_unlock(&of->mutex);
+		goto out_free;
+	}
+
+	if (battr->read)
+		count = battr->read(file, kobj, battr, buf, offs, count);
+	else
+		count = -EIO;
+
+	sysfs_put_active(of->sd);
+	mutex_unlock(&of->mutex);
+
+	if (count < 0)
+		goto out_free;
+
+	if (copy_to_user(userbuf, buf, count)) {
+		count = -EFAULT;
+		goto out_free;
+	}
+
+	pr_debug("offs = %lld, *off = %lld, count = %d\n", offs, *off, count);
+
+	*off = offs + count;
+
+ out_free:
+	kfree(buf);
+	return count;
+}
+
 /**
  * flush_write_buffer - push buffer to kobject
  * @of: open file
@@ -495,6 +559,7 @@ const struct file_operations sysfs_file_operations = {
 };
 
 const struct file_operations sysfs_bin_operations = {
+	.read		= sysfs_bin_read,
 	.write		= sysfs_write_file,
 	.llseek		= generic_file_llseek,
 };
-- 
cgit 


From 73d9714627adced2942e8d53ce0e73d9699a996c Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 1 Oct 2013 17:42:07 -0400
Subject: sysfs: copy bin mmap support from fs/sysfs/bin.c to fs/sysfs/file.c

sysfs bin file handling will be merged into the regular file support.
This patch copies mmap support from bin so that fs/sysfs/file.c can
handle mmapping bin files.

The code is copied mostly verbatim with the following updates.

* ->mmapped and ->vm_ops are added to sysfs_open_file and bin_buffer
  references are replaced with sysfs_open_file ones.

* Symbols are prefixed with sysfs_.

* sysfs_unmap_bin_file() grabs sysfs_open_dirent and traverses
  ->files.  Invocation of this function is added to
  sysfs_addrm_finish().

* sysfs_bin_mmap() is added to sysfs_bin_operations.

This is a preparation and the new mmap path isn't used yet.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/dir.c   |   1 +
 fs/sysfs/file.c  | 247 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 fs/sysfs/sysfs.h |   2 +
 3 files changed, 249 insertions(+), 1 deletion(-)

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index b518afd0d11e..c4040ddb8308 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -595,6 +595,7 @@ void sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt)
 		acxt->removed = sd->u.removed_list;
 
 		sysfs_deactivate(sd);
+		sysfs_unmap_bin_file(sd);
 		unmap_bin_file(sd);
 		sysfs_put(sd);
 	}
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 9ba492a3d932..02797a134cf8 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -22,6 +22,7 @@
 #include <linux/limits.h>
 #include <linux/uaccess.h>
 #include <linux/seq_file.h>
+#include <linux/mm.h>
 
 #include "sysfs.h"
 
@@ -52,6 +53,9 @@ struct sysfs_open_file {
 	struct mutex		mutex;
 	int			event;
 	struct list_head	list;
+
+	bool			mmapped;
+	const struct vm_operations_struct *vm_ops;
 };
 
 static bool sysfs_is_bin(struct sysfs_dirent *sd)
@@ -301,6 +305,218 @@ out_free:
 	return len;
 }
 
+static void sysfs_bin_vma_open(struct vm_area_struct *vma)
+{
+	struct file *file = vma->vm_file;
+	struct sysfs_open_file *of = sysfs_of(file);
+
+	if (!of->vm_ops)
+		return;
+
+	if (!sysfs_get_active(of->sd))
+		return;
+
+	if (of->vm_ops->open)
+		of->vm_ops->open(vma);
+
+	sysfs_put_active(of->sd);
+}
+
+static int sysfs_bin_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+	struct file *file = vma->vm_file;
+	struct sysfs_open_file *of = sysfs_of(file);
+	int ret;
+
+	if (!of->vm_ops)
+		return VM_FAULT_SIGBUS;
+
+	if (!sysfs_get_active(of->sd))
+		return VM_FAULT_SIGBUS;
+
+	ret = VM_FAULT_SIGBUS;
+	if (of->vm_ops->fault)
+		ret = of->vm_ops->fault(vma, vmf);
+
+	sysfs_put_active(of->sd);
+	return ret;
+}
+
+static int sysfs_bin_page_mkwrite(struct vm_area_struct *vma,
+				  struct vm_fault *vmf)
+{
+	struct file *file = vma->vm_file;
+	struct sysfs_open_file *of = sysfs_of(file);
+	int ret;
+
+	if (!of->vm_ops)
+		return VM_FAULT_SIGBUS;
+
+	if (!sysfs_get_active(of->sd))
+		return VM_FAULT_SIGBUS;
+
+	ret = 0;
+	if (of->vm_ops->page_mkwrite)
+		ret = of->vm_ops->page_mkwrite(vma, vmf);
+	else
+		file_update_time(file);
+
+	sysfs_put_active(of->sd);
+	return ret;
+}
+
+static int sysfs_bin_access(struct vm_area_struct *vma, unsigned long addr,
+			    void *buf, int len, int write)
+{
+	struct file *file = vma->vm_file;
+	struct sysfs_open_file *of = sysfs_of(file);
+	int ret;
+
+	if (!of->vm_ops)
+		return -EINVAL;
+
+	if (!sysfs_get_active(of->sd))
+		return -EINVAL;
+
+	ret = -EINVAL;
+	if (of->vm_ops->access)
+		ret = of->vm_ops->access(vma, addr, buf, len, write);
+
+	sysfs_put_active(of->sd);
+	return ret;
+}
+
+#ifdef CONFIG_NUMA
+static int sysfs_bin_set_policy(struct vm_area_struct *vma,
+				struct mempolicy *new)
+{
+	struct file *file = vma->vm_file;
+	struct sysfs_open_file *of = sysfs_of(file);
+	int ret;
+
+	if (!of->vm_ops)
+		return 0;
+
+	if (!sysfs_get_active(of->sd))
+		return -EINVAL;
+
+	ret = 0;
+	if (of->vm_ops->set_policy)
+		ret = of->vm_ops->set_policy(vma, new);
+
+	sysfs_put_active(of->sd);
+	return ret;
+}
+
+static struct mempolicy *sysfs_bin_get_policy(struct vm_area_struct *vma,
+					      unsigned long addr)
+{
+	struct file *file = vma->vm_file;
+	struct sysfs_open_file *of = sysfs_of(file);
+	struct mempolicy *pol;
+
+	if (!of->vm_ops)
+		return vma->vm_policy;
+
+	if (!sysfs_get_active(of->sd))
+		return vma->vm_policy;
+
+	pol = vma->vm_policy;
+	if (of->vm_ops->get_policy)
+		pol = of->vm_ops->get_policy(vma, addr);
+
+	sysfs_put_active(of->sd);
+	return pol;
+}
+
+static int sysfs_bin_migrate(struct vm_area_struct *vma, const nodemask_t *from,
+			     const nodemask_t *to, unsigned long flags)
+{
+	struct file *file = vma->vm_file;
+	struct sysfs_open_file *of = sysfs_of(file);
+	int ret;
+
+	if (!of->vm_ops)
+		return 0;
+
+	if (!sysfs_get_active(of->sd))
+		return 0;
+
+	ret = 0;
+	if (of->vm_ops->migrate)
+		ret = of->vm_ops->migrate(vma, from, to, flags);
+
+	sysfs_put_active(of->sd);
+	return ret;
+}
+#endif
+
+static const struct vm_operations_struct sysfs_bin_vm_ops = {
+	.open		= sysfs_bin_vma_open,
+	.fault		= sysfs_bin_fault,
+	.page_mkwrite	= sysfs_bin_page_mkwrite,
+	.access		= sysfs_bin_access,
+#ifdef CONFIG_NUMA
+	.set_policy	= sysfs_bin_set_policy,
+	.get_policy	= sysfs_bin_get_policy,
+	.migrate	= sysfs_bin_migrate,
+#endif
+};
+
+static int sysfs_bin_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	struct sysfs_open_file *of = sysfs_of(file);
+	struct bin_attribute *battr = of->sd->s_bin_attr.bin_attr;
+	struct kobject *kobj = of->sd->s_parent->s_dir.kobj;
+	int rc;
+
+	mutex_lock(&of->mutex);
+
+	/* need of->sd for battr, its parent for kobj */
+	rc = -ENODEV;
+	if (!sysfs_get_active(of->sd))
+		goto out_unlock;
+
+	rc = -EINVAL;
+	if (!battr->mmap)
+		goto out_put;
+
+	rc = battr->mmap(file, kobj, battr, vma);
+	if (rc)
+		goto out_put;
+
+	/*
+	 * PowerPC's pci_mmap of legacy_mem uses shmem_zero_setup()
+	 * to satisfy versions of X which crash if the mmap fails: that
+	 * substitutes a new vm_file, and we don't then want bin_vm_ops.
+	 */
+	if (vma->vm_file != file)
+		goto out_put;
+
+	rc = -EINVAL;
+	if (of->mmapped && of->vm_ops != vma->vm_ops)
+		goto out_put;
+
+	/*
+	 * It is not possible to successfully wrap close.
+	 * So error if someone is trying to use close.
+	 */
+	rc = -EINVAL;
+	if (vma->vm_ops && vma->vm_ops->close)
+		goto out_put;
+
+	rc = 0;
+	of->mmapped = 1;
+	of->vm_ops = vma->vm_ops;
+	vma->vm_ops = &sysfs_bin_vm_ops;
+out_put:
+	sysfs_put_active(of->sd);
+out_unlock:
+	mutex_unlock(&of->mutex);
+
+	return rc;
+}
+
 /**
  *	sysfs_get_open_dirent - get or create sysfs_open_dirent
  *	@sd: target sysfs_dirent
@@ -375,7 +591,9 @@ static void sysfs_put_open_dirent(struct sysfs_dirent *sd,
 	mutex_lock(&sysfs_open_file_mutex);
 	spin_lock_irqsave(&sysfs_open_dirent_lock, flags);
 
-	list_del(&of->list);
+	if (of)
+		list_del(&of->list);
+
 	if (atomic_dec_and_test(&od->refcnt))
 		sd->s_attr.open = NULL;
 	else
@@ -477,6 +695,32 @@ static int sysfs_release(struct inode *inode, struct file *filp)
 	return 0;
 }
 
+void sysfs_unmap_bin_file(struct sysfs_dirent *sd)
+{
+	struct sysfs_open_dirent *od;
+	struct sysfs_open_file *of;
+
+	if (!sysfs_is_bin(sd))
+		return;
+
+	spin_lock_irq(&sysfs_open_dirent_lock);
+	od = sd->s_attr.open;
+	if (od)
+		atomic_inc(&od->refcnt);
+	spin_unlock_irq(&sysfs_open_dirent_lock);
+	if (!od)
+		return;
+
+	mutex_lock(&sysfs_open_file_mutex);
+	list_for_each_entry(of, &od->files, list) {
+		struct inode *inode = file_inode(of->file);
+		unmap_mapping_range(inode->i_mapping, 0, 0, 1);
+	}
+	mutex_unlock(&sysfs_open_file_mutex);
+
+	sysfs_put_open_dirent(sd, NULL);
+}
+
 /* Sysfs attribute files are pollable.  The idea is that you read
  * the content and then you use 'poll' or 'select' to wait for
  * the content to change.  When the content changes (assuming the
@@ -562,6 +806,7 @@ const struct file_operations sysfs_bin_operations = {
 	.read		= sysfs_bin_read,
 	.write		= sysfs_write_file,
 	.llseek		= generic_file_llseek,
+	.mmap		= sysfs_bin_mmap,
 };
 
 int sysfs_add_file_mode_ns(struct sysfs_dirent *dir_sd,
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index f103bac53df7..c960d6272cf6 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -220,6 +220,8 @@ int sysfs_add_file(struct sysfs_dirent *dir_sd,
 int sysfs_add_file_mode_ns(struct sysfs_dirent *dir_sd,
 			   const struct attribute *attr, int type,
 			   umode_t amode, const void *ns);
+void sysfs_unmap_bin_file(struct sysfs_dirent *sd);
+
 /*
  * bin.c
  */
-- 
cgit 


From 49fe604781cbb03eb6ff12a7bc4ad8eef8b830c4 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 1 Oct 2013 17:42:08 -0400
Subject: sysfs: prepare open path for unified regular / bin file handling

sysfs bin file handling will be merged into the regular file support.
This patch prepares the open path.

This patch updates sysfs_open_file() such that it can handle both
regular and bin files.

This is a preparation and the new bin file path isn't used yet.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/file.c | 58 ++++++++++++++++++++++++++++++++-------------------------
 1 file changed, 33 insertions(+), 25 deletions(-)

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 02797a134cf8..417d005955d9 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -610,38 +610,40 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
 	struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
 	struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
 	struct sysfs_open_file *of;
-	const struct sysfs_ops *ops;
+	bool has_read, has_write;
 	int error = -EACCES;
 
 	/* need attr_sd for attr and ops, its parent for kobj */
 	if (!sysfs_get_active(attr_sd))
 		return -ENODEV;
 
-	/* every kobject with an attribute needs a ktype assigned */
-	ops = sysfs_file_ops(attr_sd);
-	if (WARN(!ops, KERN_ERR
-		 "missing sysfs attribute operations for kobject: %s\n",
-		 kobject_name(kobj)))
-		goto err_out;
+	if (sysfs_is_bin(attr_sd)) {
+		struct bin_attribute *battr = attr_sd->s_bin_attr.bin_attr;
 
-	/* File needs write support.
-	 * The inode's perms must say it's ok,
-	 * and we must have a store method.
-	 */
-	if (file->f_mode & FMODE_WRITE) {
-		if (!(inode->i_mode & S_IWUGO) || !ops->store)
-			goto err_out;
-	}
+		has_read = battr->read || battr->mmap;
+		has_write = battr->write || battr->mmap;
+	} else {
+		const struct sysfs_ops *ops = sysfs_file_ops(attr_sd);
 
-	/* File needs read support.
-	 * The inode's perms must say it's ok, and we there
-	 * must be a show method for it.
-	 */
-	if (file->f_mode & FMODE_READ) {
-		if (!(inode->i_mode & S_IRUGO) || !ops->show)
+		/* every kobject with an attribute needs a ktype assigned */
+		if (WARN(!ops, KERN_ERR
+			 "missing sysfs attribute operations for kobject: %s\n",
+			 kobject_name(kobj)))
 			goto err_out;
+
+		has_read = ops->show;
+		has_write = ops->store;
 	}
 
+	/* check perms and supported operations */
+	if ((file->f_mode & FMODE_WRITE) &&
+	    (!(inode->i_mode & S_IWUGO) || !has_write))
+		goto err_out;
+
+	if ((file->f_mode & FMODE_READ) &&
+	    (!(inode->i_mode & S_IRUGO) || !has_read))
+		goto err_out;
+
 	/* allocate a sysfs_open_file for the file */
 	error = -ENOMEM;
 	of = kzalloc(sizeof(struct sysfs_open_file), GFP_KERNEL);
@@ -653,11 +655,14 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
 	of->file = file;
 
 	/*
-	 * Always instantiate seq_file even if read access is not
-	 * implemented or requested.  This unifies private data access and
-	 * most files are readable anyway.
+	 * Always instantiate seq_file even if read access doesn't use
+	 * seq_file or is not requested.  This unifies private data access
+	 * and readable regular files are the vast majority anyway.
 	 */
-	error = single_open(file, sysfs_seq_show, of);
+	if (sysfs_is_bin(attr_sd))
+		error = single_open(file, NULL, of);
+	else
+		error = single_open(file, sysfs_seq_show, of);
 	if (error)
 		goto err_free;
 
@@ -807,6 +812,9 @@ const struct file_operations sysfs_bin_operations = {
 	.write		= sysfs_write_file,
 	.llseek		= generic_file_llseek,
 	.mmap		= sysfs_bin_mmap,
+	.open		= sysfs_open_file,
+	.release	= sysfs_release,
+	.poll		= sysfs_poll,
 };
 
 int sysfs_add_file_mode_ns(struct sysfs_dirent *dir_sd,
-- 
cgit 


From 3124eb1679b28726eacbc8973a891235dca3ed99 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 1 Oct 2013 17:42:09 -0400
Subject: sysfs: merge regular and bin file handling

With the previous changes, sysfs regular file code is ready to handle
bin files too.  This patch makes bin files share the regular file
path.

* sysfs_create/remove_bin_file() are moved to fs/sysfs/file.c.

* sysfs_init_inode() is updated to use the new sysfs_bin_operations
  instead of bin_fops for bin files.

* fs/sysfs/bin.c and the related pieces are removed.

This patch shouldn't introduce any behavior difference to bin file
accesses.

Overall, this unification reduces the amount of duplicate logic, makes
behaviors more consistent and paves the road for building simpler and
more versatile interface which will allow other subsystems to make use
of sysfs for their pseudo filesystems.

v2: Stale fs/sysfs/bin.c reference dropped from
    Documentation/DocBook/filesystems.tmpl.  Reported by kbuild test
    robot.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Kay Sievers <kay@vrfy.org>
Cc: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/DocBook/filesystems.tmpl |   1 -
 fs/sysfs/Makefile                      |   3 +-
 fs/sysfs/bin.c                         | 491 ---------------------------------
 fs/sysfs/dir.c                         |   1 -
 fs/sysfs/file.c                        |  26 ++
 fs/sysfs/inode.c                       |   2 +-
 fs/sysfs/sysfs.h                       |   6 -
 7 files changed, 28 insertions(+), 502 deletions(-)
 delete mode 100644 fs/sysfs/bin.c

diff --git a/Documentation/DocBook/filesystems.tmpl b/Documentation/DocBook/filesystems.tmpl
index 25b58efd955d..4f676838da06 100644
--- a/Documentation/DocBook/filesystems.tmpl
+++ b/Documentation/DocBook/filesystems.tmpl
@@ -91,7 +91,6 @@
      <title>The Filesystem for Exporting Kernel Objects</title>
 !Efs/sysfs/file.c
 !Efs/sysfs/symlink.c
-!Efs/sysfs/bin.c
   </chapter>
 
   <chapter id="debugfs">
diff --git a/fs/sysfs/Makefile b/fs/sysfs/Makefile
index 7a1ceb946b80..8876ac183373 100644
--- a/fs/sysfs/Makefile
+++ b/fs/sysfs/Makefile
@@ -2,5 +2,4 @@
 # Makefile for the sysfs virtual filesystem
 #
 
-obj-y		:= inode.o file.o dir.o symlink.o mount.o bin.o \
-		   group.o
+obj-y		:= inode.o file.o dir.o symlink.o mount.o group.o
diff --git a/fs/sysfs/bin.c b/fs/sysfs/bin.c
deleted file mode 100644
index 60a4e787dc4f..000000000000
--- a/fs/sysfs/bin.c
+++ /dev/null
@@ -1,491 +0,0 @@
-/*
- * fs/sysfs/bin.c - sysfs binary file implementation
- *
- * Copyright (c) 2003 Patrick Mochel
- * Copyright (c) 2003 Matthew Wilcox
- * Copyright (c) 2004 Silicon Graphics, Inc.
- * Copyright (c) 2007 SUSE Linux Products GmbH
- * Copyright (c) 2007 Tejun Heo <teheo@suse.de>
- *
- * This file is released under the GPLv2.
- *
- * Please see Documentation/filesystems/sysfs.txt for more information.
- */
-
-#undef DEBUG
-
-#include <linux/errno.h>
-#include <linux/fs.h>
-#include <linux/kernel.h>
-#include <linux/kobject.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/mutex.h>
-#include <linux/mm.h>
-#include <linux/uaccess.h>
-
-#include "sysfs.h"
-
-/*
- * There's one bin_buffer for each open file.
- *
- * filp->private_data points to bin_buffer and
- * sysfs_dirent->s_bin_attr.buffers points to a the bin_buffer s
- * sysfs_dirent->s_bin_attr.buffers is protected by sysfs_bin_lock
- */
-static DEFINE_MUTEX(sysfs_bin_lock);
-
-struct bin_buffer {
-	struct mutex			mutex;
-	void				*buffer;
-	int				mmapped;
-	const struct vm_operations_struct *vm_ops;
-	struct file			*file;
-	struct hlist_node		list;
-};
-
-static ssize_t
-read(struct file *file, char __user *userbuf, size_t bytes, loff_t *off)
-{
-	struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
-	struct bin_attribute *attr = attr_sd->s_bin_attr.bin_attr;
-	struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
-	struct bin_buffer *bb = file->private_data;
-	int size = file_inode(file)->i_size;
-	loff_t offs = *off;
-	int count = min_t(size_t, bytes, PAGE_SIZE);
-	char *buf;
-
-	if (!bytes)
-		return 0;
-
-	if (size) {
-		if (offs > size)
-			return 0;
-		if (offs + count > size)
-			count = size - offs;
-	}
-
-	buf = kmalloc(count, GFP_KERNEL);
-	if (!buf)
-		return -ENOMEM;
-
-	/* need attr_sd for attr, its parent for kobj */
-	mutex_lock(&bb->mutex);
-	if (!sysfs_get_active(attr_sd)) {
-		count = -ENODEV;
-		mutex_unlock(&bb->mutex);
-		goto out_free;
-	}
-
-	if (attr->read)
-		count = attr->read(file, kobj, attr, buf, offs, count);
-	else
-		count = -EIO;
-
-	sysfs_put_active(attr_sd);
-	mutex_unlock(&bb->mutex);
-
-	if (count < 0)
-		goto out_free;
-
-	if (copy_to_user(userbuf, buf, count)) {
-		count = -EFAULT;
-		goto out_free;
-	}
-
-	pr_debug("offs = %lld, *off = %lld, count = %d\n", offs, *off, count);
-
-	*off = offs + count;
-
- out_free:
-	kfree(buf);
-	return count;
-}
-
-static int
-flush_write(struct file *file, char *buffer, loff_t offset, size_t count)
-{
-	struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
-	struct bin_attribute *attr = attr_sd->s_bin_attr.bin_attr;
-	struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
-	int rc;
-
-	/* need attr_sd for attr, its parent for kobj */
-	if (!sysfs_get_active(attr_sd))
-		return -ENODEV;
-
-	rc = -EIO;
-	if (attr->write)
-		rc = attr->write(file, kobj, attr, buffer, offset, count);
-
-	sysfs_put_active(attr_sd);
-
-	return rc;
-}
-
-static ssize_t write(struct file *file, const char __user *userbuf,
-		     size_t bytes, loff_t *off)
-{
-	struct bin_buffer *bb = file->private_data;
-	int size = file_inode(file)->i_size;
-	loff_t offs = *off;
-	int count = min_t(size_t, bytes, PAGE_SIZE);
-	char *temp;
-
-	if (!bytes)
-		return 0;
-
-	if (size) {
-		if (offs > size)
-			return 0;
-		if (offs + count > size)
-			count = size - offs;
-	}
-
-	temp = memdup_user(userbuf, count);
-	if (IS_ERR(temp))
-		return PTR_ERR(temp);
-
-	mutex_lock(&bb->mutex);
-
-	memcpy(bb->buffer, temp, count);
-
-	count = flush_write(file, bb->buffer, offs, count);
-	mutex_unlock(&bb->mutex);
-
-	if (count > 0)
-		*off = offs + count;
-
-	kfree(temp);
-	return count;
-}
-
-static void bin_vma_open(struct vm_area_struct *vma)
-{
-	struct file *file = vma->vm_file;
-	struct bin_buffer *bb = file->private_data;
-	struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
-
-	if (!bb->vm_ops)
-		return;
-
-	if (!sysfs_get_active(attr_sd))
-		return;
-
-	if (bb->vm_ops->open)
-		bb->vm_ops->open(vma);
-
-	sysfs_put_active(attr_sd);
-}
-
-static int bin_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
-{
-	struct file *file = vma->vm_file;
-	struct bin_buffer *bb = file->private_data;
-	struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
-	int ret;
-
-	if (!bb->vm_ops)
-		return VM_FAULT_SIGBUS;
-
-	if (!sysfs_get_active(attr_sd))
-		return VM_FAULT_SIGBUS;
-
-	ret = VM_FAULT_SIGBUS;
-	if (bb->vm_ops->fault)
-		ret = bb->vm_ops->fault(vma, vmf);
-
-	sysfs_put_active(attr_sd);
-	return ret;
-}
-
-static int bin_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
-{
-	struct file *file = vma->vm_file;
-	struct bin_buffer *bb = file->private_data;
-	struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
-	int ret;
-
-	if (!bb->vm_ops)
-		return VM_FAULT_SIGBUS;
-
-	if (!sysfs_get_active(attr_sd))
-		return VM_FAULT_SIGBUS;
-
-	ret = 0;
-	if (bb->vm_ops->page_mkwrite)
-		ret = bb->vm_ops->page_mkwrite(vma, vmf);
-	else
-		file_update_time(file);
-
-	sysfs_put_active(attr_sd);
-	return ret;
-}
-
-static int bin_access(struct vm_area_struct *vma, unsigned long addr,
-		  void *buf, int len, int write)
-{
-	struct file *file = vma->vm_file;
-	struct bin_buffer *bb = file->private_data;
-	struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
-	int ret;
-
-	if (!bb->vm_ops)
-		return -EINVAL;
-
-	if (!sysfs_get_active(attr_sd))
-		return -EINVAL;
-
-	ret = -EINVAL;
-	if (bb->vm_ops->access)
-		ret = bb->vm_ops->access(vma, addr, buf, len, write);
-
-	sysfs_put_active(attr_sd);
-	return ret;
-}
-
-#ifdef CONFIG_NUMA
-static int bin_set_policy(struct vm_area_struct *vma, struct mempolicy *new)
-{
-	struct file *file = vma->vm_file;
-	struct bin_buffer *bb = file->private_data;
-	struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
-	int ret;
-
-	if (!bb->vm_ops)
-		return 0;
-
-	if (!sysfs_get_active(attr_sd))
-		return -EINVAL;
-
-	ret = 0;
-	if (bb->vm_ops->set_policy)
-		ret = bb->vm_ops->set_policy(vma, new);
-
-	sysfs_put_active(attr_sd);
-	return ret;
-}
-
-static struct mempolicy *bin_get_policy(struct vm_area_struct *vma,
-					unsigned long addr)
-{
-	struct file *file = vma->vm_file;
-	struct bin_buffer *bb = file->private_data;
-	struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
-	struct mempolicy *pol;
-
-	if (!bb->vm_ops)
-		return vma->vm_policy;
-
-	if (!sysfs_get_active(attr_sd))
-		return vma->vm_policy;
-
-	pol = vma->vm_policy;
-	if (bb->vm_ops->get_policy)
-		pol = bb->vm_ops->get_policy(vma, addr);
-
-	sysfs_put_active(attr_sd);
-	return pol;
-}
-
-static int bin_migrate(struct vm_area_struct *vma, const nodemask_t *from,
-			const nodemask_t *to, unsigned long flags)
-{
-	struct file *file = vma->vm_file;
-	struct bin_buffer *bb = file->private_data;
-	struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
-	int ret;
-
-	if (!bb->vm_ops)
-		return 0;
-
-	if (!sysfs_get_active(attr_sd))
-		return 0;
-
-	ret = 0;
-	if (bb->vm_ops->migrate)
-		ret = bb->vm_ops->migrate(vma, from, to, flags);
-
-	sysfs_put_active(attr_sd);
-	return ret;
-}
-#endif
-
-static const struct vm_operations_struct bin_vm_ops = {
-	.open		= bin_vma_open,
-	.fault		= bin_fault,
-	.page_mkwrite	= bin_page_mkwrite,
-	.access		= bin_access,
-#ifdef CONFIG_NUMA
-	.set_policy	= bin_set_policy,
-	.get_policy	= bin_get_policy,
-	.migrate	= bin_migrate,
-#endif
-};
-
-static int mmap(struct file *file, struct vm_area_struct *vma)
-{
-	struct bin_buffer *bb = file->private_data;
-	struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
-	struct bin_attribute *attr = attr_sd->s_bin_attr.bin_attr;
-	struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
-	int rc;
-
-	mutex_lock(&bb->mutex);
-
-	/* need attr_sd for attr, its parent for kobj */
-	rc = -ENODEV;
-	if (!sysfs_get_active(attr_sd))
-		goto out_unlock;
-
-	rc = -EINVAL;
-	if (!attr->mmap)
-		goto out_put;
-
-	rc = attr->mmap(file, kobj, attr, vma);
-	if (rc)
-		goto out_put;
-
-	/*
-	 * PowerPC's pci_mmap of legacy_mem uses shmem_zero_setup()
-	 * to satisfy versions of X which crash if the mmap fails: that
-	 * substitutes a new vm_file, and we don't then want bin_vm_ops.
-	 */
-	if (vma->vm_file != file)
-		goto out_put;
-
-	rc = -EINVAL;
-	if (bb->mmapped && bb->vm_ops != vma->vm_ops)
-		goto out_put;
-
-	/*
-	 * It is not possible to successfully wrap close.
-	 * So error if someone is trying to use close.
-	 */
-	rc = -EINVAL;
-	if (vma->vm_ops && vma->vm_ops->close)
-		goto out_put;
-
-	rc = 0;
-	bb->mmapped = 1;
-	bb->vm_ops = vma->vm_ops;
-	vma->vm_ops = &bin_vm_ops;
-out_put:
-	sysfs_put_active(attr_sd);
-out_unlock:
-	mutex_unlock(&bb->mutex);
-
-	return rc;
-}
-
-static int open(struct inode *inode, struct file *file)
-{
-	struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
-	struct bin_attribute *attr = attr_sd->s_bin_attr.bin_attr;
-	struct bin_buffer *bb = NULL;
-	int error;
-
-	/* binary file operations requires both @sd and its parent */
-	if (!sysfs_get_active(attr_sd))
-		return -ENODEV;
-
-	error = -EACCES;
-	if ((file->f_mode & FMODE_WRITE) && !(attr->write || attr->mmap))
-		goto err_out;
-	if ((file->f_mode & FMODE_READ) && !(attr->read || attr->mmap))
-		goto err_out;
-
-	error = -ENOMEM;
-	bb = kzalloc(sizeof(*bb), GFP_KERNEL);
-	if (!bb)
-		goto err_out;
-
-	bb->buffer = kmalloc(PAGE_SIZE, GFP_KERNEL);
-	if (!bb->buffer)
-		goto err_out;
-
-	mutex_init(&bb->mutex);
-	bb->file = file;
-	file->private_data = bb;
-
-	mutex_lock(&sysfs_bin_lock);
-	hlist_add_head(&bb->list, &attr_sd->s_bin_attr.buffers);
-	mutex_unlock(&sysfs_bin_lock);
-
-	/* open succeeded, put active references */
-	sysfs_put_active(attr_sd);
-	return 0;
-
- err_out:
-	sysfs_put_active(attr_sd);
-	kfree(bb);
-	return error;
-}
-
-static int release(struct inode *inode, struct file *file)
-{
-	struct bin_buffer *bb = file->private_data;
-
-	mutex_lock(&sysfs_bin_lock);
-	hlist_del(&bb->list);
-	mutex_unlock(&sysfs_bin_lock);
-
-	kfree(bb->buffer);
-	kfree(bb);
-	return 0;
-}
-
-const struct file_operations bin_fops = {
-	.read		= read,
-	.write		= write,
-	.mmap		= mmap,
-	.llseek		= generic_file_llseek,
-	.open		= open,
-	.release	= release,
-};
-
-
-void unmap_bin_file(struct sysfs_dirent *attr_sd)
-{
-	struct bin_buffer *bb;
-
-	if (sysfs_type(attr_sd) != SYSFS_KOBJ_BIN_ATTR)
-		return;
-
-	mutex_lock(&sysfs_bin_lock);
-
-	hlist_for_each_entry(bb, &attr_sd->s_bin_attr.buffers, list) {
-		struct inode *inode = file_inode(bb->file);
-
-		unmap_mapping_range(inode->i_mapping, 0, 0, 1);
-	}
-
-	mutex_unlock(&sysfs_bin_lock);
-}
-
-/**
- *	sysfs_create_bin_file - create binary file for object.
- *	@kobj:	object.
- *	@attr:	attribute descriptor.
- */
-int sysfs_create_bin_file(struct kobject *kobj,
-			  const struct bin_attribute *attr)
-{
-	BUG_ON(!kobj || !kobj->sd || !attr);
-
-	return sysfs_add_file(kobj->sd, &attr->attr, SYSFS_KOBJ_BIN_ATTR);
-}
-EXPORT_SYMBOL_GPL(sysfs_create_bin_file);
-
-/**
- *	sysfs_remove_bin_file - remove binary file for object.
- *	@kobj:	object.
- *	@attr:	attribute descriptor.
- */
-void sysfs_remove_bin_file(struct kobject *kobj,
-			   const struct bin_attribute *attr)
-{
-	sysfs_hash_and_remove(kobj->sd, attr->attr.name, NULL);
-}
-EXPORT_SYMBOL_GPL(sysfs_remove_bin_file);
diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index c4040ddb8308..f6025c81bfd5 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -596,7 +596,6 @@ void sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt)
 
 		sysfs_deactivate(sd);
 		sysfs_unmap_bin_file(sd);
-		unmap_bin_file(sd);
 		sysfs_put(sd);
 	}
 }
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 417d005955d9..5f7a955550de 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -987,6 +987,32 @@ void sysfs_remove_file_from_group(struct kobject *kobj,
 }
 EXPORT_SYMBOL_GPL(sysfs_remove_file_from_group);
 
+/**
+ *	sysfs_create_bin_file - create binary file for object.
+ *	@kobj:	object.
+ *	@attr:	attribute descriptor.
+ */
+int sysfs_create_bin_file(struct kobject *kobj,
+			  const struct bin_attribute *attr)
+{
+	BUG_ON(!kobj || !kobj->sd || !attr);
+
+	return sysfs_add_file(kobj->sd, &attr->attr, SYSFS_KOBJ_BIN_ATTR);
+}
+EXPORT_SYMBOL_GPL(sysfs_create_bin_file);
+
+/**
+ *	sysfs_remove_bin_file - remove binary file for object.
+ *	@kobj:	object.
+ *	@attr:	attribute descriptor.
+ */
+void sysfs_remove_bin_file(struct kobject *kobj,
+			   const struct bin_attribute *attr)
+{
+	sysfs_hash_and_remove(kobj->sd, attr->attr.name, NULL);
+}
+EXPORT_SYMBOL_GPL(sysfs_remove_bin_file);
+
 struct sysfs_schedule_callback_struct {
 	struct list_head	workq_list;
 	struct kobject		*kobj;
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index 63f755ef71dd..2cb1b6b8ccbc 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -260,7 +260,7 @@ static void sysfs_init_inode(struct sysfs_dirent *sd, struct inode *inode)
 	case SYSFS_KOBJ_BIN_ATTR:
 		bin_attr = sd->s_bin_attr.bin_attr;
 		inode->i_size = bin_attr->size;
-		inode->i_fop = &bin_fops;
+		inode->i_fop = &sysfs_bin_operations;
 		break;
 	case SYSFS_KOBJ_LINK:
 		inode->i_op = &sysfs_symlink_inode_operations;
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index c960d6272cf6..4e01d3b3909c 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -222,12 +222,6 @@ int sysfs_add_file_mode_ns(struct sysfs_dirent *dir_sd,
 			   umode_t amode, const void *ns);
 void sysfs_unmap_bin_file(struct sysfs_dirent *sd);
 
-/*
- * bin.c
- */
-extern const struct file_operations bin_fops;
-void unmap_bin_file(struct sysfs_dirent *attr_sd);
-
 /*
  * symlink.c
  */
-- 
cgit 


From a07bf39a65cb5eb4e38426afc7d5e00d560211da Mon Sep 17 00:00:00 2001
From: Lidza Louina <lidza.louina@gmail.com>
Date: Fri, 4 Oct 2013 12:18:30 -0400
Subject: staging: dgnc: changes arguments in sizeof

The arguments that were passed into sizeof were
generic. This patch changes this by putting
the actual item that we need a size of instead.

For example:
-   kzalloc(sizeof(struct dgnc_board), GFP_KERNEL);
+   kzalloc(sizeof(*brd), GFP_KERNEL);

Signed-off-by: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgnc/dgnc_driver.c |  4 ++--
 drivers/staging/dgnc/dgnc_mgmt.c   |  2 +-
 drivers/staging/dgnc/dgnc_tty.c    | 24 ++++++++++++------------
 3 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c
index c398193e9b85..4271fa38a46c 100644
--- a/drivers/staging/dgnc/dgnc_driver.c
+++ b/drivers/staging/dgnc/dgnc_driver.c
@@ -487,7 +487,7 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
 
 	/* get the board structure and prep it */
 	brd = dgnc_Board[dgnc_NumBoards] =
-		kzalloc(sizeof(struct dgnc_board), GFP_KERNEL);
+		kzalloc(sizeof(*brd), GFP_KERNEL);
 	if (!brd) {
 		APR(("memory allocation for board structure failed\n"));
 		return -ENOMEM;
@@ -495,7 +495,7 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
 
 	/* make a temporary message buffer for the boot messages */
 	brd->msgbuf = brd->msgbuf_head =
-		kzalloc(sizeof(char) * 8192, GFP_KERNEL);
+		kzalloc(sizeof(u8) * 8192, GFP_KERNEL);
 	if (!brd->msgbuf) {
 		kfree(brd);
 		APR(("memory allocation for board msgbuf failed\n"));
diff --git a/drivers/staging/dgnc/dgnc_mgmt.c b/drivers/staging/dgnc/dgnc_mgmt.c
index bb39f5dfa043..354458c5068e 100644
--- a/drivers/staging/dgnc/dgnc_mgmt.c
+++ b/drivers/staging/dgnc/dgnc_mgmt.c
@@ -209,7 +209,7 @@ long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		uint board = 0;
 		uint channel = 0;
 
-		if (copy_from_user(&ni, uarg, sizeof(struct ni_info))) {
+		if (copy_from_user(&ni, uarg, sizeof(ni))) {
 			return -EFAULT;
 		}
 
diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c
index 1350d6266524..c6fee11632f7 100644
--- a/drivers/staging/dgnc/dgnc_tty.c
+++ b/drivers/staging/dgnc/dgnc_tty.c
@@ -200,8 +200,8 @@ int dgnc_tty_register(struct dgnc_board *brd)
 
 	DPR_INIT(("tty_register start\n"));
 
-	memset(&brd->SerialDriver, 0, sizeof(struct tty_driver));
-	memset(&brd->PrintDriver, 0, sizeof(struct tty_driver));
+	memset(&brd->SerialDriver, 0, sizeof(brd->SerialDriver));
+	memset(&brd->PrintDriver, 0, sizeof(brd->PrintDriver));
 
 	brd->SerialDriver.magic = TTY_DRIVER_MAGIC;
 
@@ -222,12 +222,12 @@ int dgnc_tty_register(struct dgnc_board *brd)
 	 * The kernel wants space to store pointers to
 	 * tty_struct's and termios's.
 	 */
-	brd->SerialDriver.ttys = kzalloc(brd->maxports * sizeof(struct tty_struct *), GFP_KERNEL);
+	brd->SerialDriver.ttys = kzalloc(brd->maxports * sizeof(*brd->SerialDriver.ttys), GFP_KERNEL);
 	if (!brd->SerialDriver.ttys)
 		return -ENOMEM;
 
 	kref_init(&brd->SerialDriver.kref);
-	brd->SerialDriver.termios = kzalloc(brd->maxports * sizeof(struct ktermios *), GFP_KERNEL);
+	brd->SerialDriver.termios = kzalloc(brd->maxports * sizeof(*brd->SerialDriver.termios), GFP_KERNEL);
 	if (!brd->SerialDriver.termios)
 		return -ENOMEM;
 
@@ -271,11 +271,11 @@ int dgnc_tty_register(struct dgnc_board *brd)
 	 * tty_struct's and termios's.  Must be separated from
 	 * the Serial Driver so we don't get confused
 	 */
-	brd->PrintDriver.ttys = kzalloc(brd->maxports * sizeof(struct tty_struct *), GFP_KERNEL);
+	brd->PrintDriver.ttys = kzalloc(brd->maxports * sizeof(*brd->PrintDriver.ttys), GFP_KERNEL);
 	if (!brd->PrintDriver.ttys)
 		return -ENOMEM;
 	kref_init(&brd->PrintDriver.kref);
-	brd->PrintDriver.termios = kzalloc(brd->maxports * sizeof(struct ktermios *), GFP_KERNEL);
+	brd->PrintDriver.termios = kzalloc(brd->maxports * sizeof(*brd->PrintDriver.termios), GFP_KERNEL);
 	if (!brd->PrintDriver.termios)
 		return -ENOMEM;
 
@@ -341,7 +341,7 @@ int dgnc_tty_init(struct dgnc_board *brd)
 			 * Okay to malloc with GFP_KERNEL, we are not at
 			 * interrupt context, and there are no locks held.
 			 */
-			brd->channels[i] = kzalloc(sizeof(struct channel_t), GFP_KERNEL);
+			brd->channels[i] = kzalloc(sizeof(*brd->channels[i]), GFP_KERNEL);
 			if (!brd->channels[i]) {
 				DPR_CORE(("%s:%d Unable to allocate memory for channel struct\n",
 				    __FILE__, __LINE__));
@@ -2664,7 +2664,7 @@ static int dgnc_tty_digiseta(struct tty_struct *tty, struct digi_t __user *new_i
 	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
 		return -EFAULT;
 
-	if (copy_from_user(&new_digi, new_info, sizeof(struct digi_t))) {
+	if (copy_from_user(&new_digi, new_info, sizeof(new_digi))) {
 		DPR_IOCTL(("DIGI_SETA failed copy_from_user\n"));
 		return -EFAULT;
 	}
@@ -2687,7 +2687,7 @@ static int dgnc_tty_digiseta(struct tty_struct *tty, struct digi_t __user *new_i
 	if ((ch->ch_digi.digi_flags & DIGI_DTR_TOGGLE) && !(new_digi.digi_flags & DIGI_DTR_TOGGLE))
 		ch->ch_mostat |= (UART_MCR_DTR);
 
-	memcpy(&ch->ch_digi, &new_digi, sizeof(struct digi_t));
+	memcpy(&ch->ch_digi, &new_digi, sizeof(new_digi));
 
 	if (ch->ch_digi.digi_maxcps < 1)
 		ch->ch_digi.digi_maxcps = 1;
@@ -3369,7 +3369,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
 
-		if (copy_to_user(uarg, &buf, sizeof(struct digi_getcounter))) {
+		if (copy_to_user(uarg, &buf, sizeof(buf))) {
 			return -EFAULT;
 		}
 		return 0;
@@ -3417,7 +3417,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 		/*
 		 * Get data from user first.
 		 */
-		if (copy_from_user(&buf, uarg, sizeof(struct digi_getbuffer))) {
+		if (copy_from_user(&buf, uarg, sizeof(buf))) {
 			return -EFAULT;
 		}
 
@@ -3463,7 +3463,7 @@ static int dgnc_tty_ioctl(struct tty_struct *tty, unsigned int cmd,
 
 		DGNC_UNLOCK(ch->ch_lock, lock_flags);
 
-		if (copy_to_user(uarg, &buf, sizeof(struct digi_getbuffer))) {
+		if (copy_to_user(uarg, &buf, sizeof(buf))) {
 			return -EFAULT;
 		}
 		return 0;
-- 
cgit 


From f30bd6855c2b0a3c4f18fc85d5b776bb8f7f13af Mon Sep 17 00:00:00 2001
From: Baruch Siach <baruch@tkos.co.il>
Date: Fri, 4 Oct 2013 10:52:41 +0300
Subject: staging: xillybus: remove redundant Kconfig dependency

XILLYBUS_PCIE and XILLYBUS_OF are inside 'if XILLYBUS' already, so there is not
need to depend on XILLYBUS.

Cc: Eli Billauer <eli.billauer@gmail.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/xillybus/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/xillybus/Kconfig b/drivers/staging/xillybus/Kconfig
index 8a4181f846a1..b15f778b4c68 100644
--- a/drivers/staging/xillybus/Kconfig
+++ b/drivers/staging/xillybus/Kconfig
@@ -16,14 +16,14 @@ if XILLYBUS
 
 config XILLYBUS_PCIE
 	tristate "Xillybus over PCIe"
-	depends on XILLYBUS && PCI
+	depends on PCI
 	help
 	  Set to M if you want Xillybus to use PCI Express for communicating
 	  with the FPGA.
 
 config XILLYBUS_OF
 	tristate "Xillybus over Device Tree"
-	depends on XILLYBUS && OF_ADDRESS && OF_IRQ
+	depends on OF_ADDRESS && OF_IRQ
 	help
 	  Set to M if you want Xillybus to find its resources from the
 	  Open Firmware Flattened Device Tree. If the target is an embedded
-- 
cgit 


From d1a168eccfb99a84cea447726ad70ac854b5b6df Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Wed, 2 Oct 2013 16:27:51 +0200
Subject: lustre: Convert ll_get_user_pages() to use get_user_pages_fast()

CC: Peng Tao <tao.peng@emc.com>
Acked-by: Andreas Dilger <andreas.dilger@intel.com>
CC: hpdd-discuss@lists.01.org
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/llite/rw26.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/lustre/lustre/llite/rw26.c b/drivers/staging/lustre/lustre/llite/rw26.c
index 96c29ad2fc8c..7e3e0967993b 100644
--- a/drivers/staging/lustre/lustre/llite/rw26.c
+++ b/drivers/staging/lustre/lustre/llite/rw26.c
@@ -202,11 +202,8 @@ static inline int ll_get_user_pages(int rw, unsigned long user_addr,
 
 	OBD_ALLOC_LARGE(*pages, *max_pages * sizeof(**pages));
 	if (*pages) {
-		down_read(&current->mm->mmap_sem);
-		result = get_user_pages(current, current->mm, user_addr,
-					*max_pages, (rw == READ), 0, *pages,
-					NULL);
-		up_read(&current->mm->mmap_sem);
+		result = get_user_pages_fast(user_addr, *max_pages,
+					     (rw == READ), *pages);
 		if (unlikely(result <= 0))
 			OBD_FREE_LARGE(*pages, *max_pages * sizeof(**pages));
 	}
-- 
cgit 


From f4ee2ccb6f9241c4bae2df66c296cf579d1487fb Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Wed, 2 Oct 2013 16:27:49 +0200
Subject: ced1401: Convert driver to use get_user_pages_fast()

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ced1401/ced_ioc.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/staging/ced1401/ced_ioc.c b/drivers/staging/ced1401/ced_ioc.c
index 2dbaf39e2fc2..62efd74b8c04 100644
--- a/drivers/staging/ced1401/ced_ioc.c
+++ b/drivers/staging/ced1401/ced_ioc.c
@@ -692,10 +692,7 @@ static int SetArea(DEVICE_EXTENSION *pdx, int nArea, char __user *puBuf,
 		__func__, puBuf, dwLength, bCircular);
 
 	/*  To pin down user pages we must first acquire the mapping semaphore. */
-	down_read(&current->mm->mmap_sem);	/*  get memory map semaphore */
-	nPages = get_user_pages(current, current->mm, ulStart, len, 1, 0,
-				pPages, NULL);
-	up_read(&current->mm->mmap_sem);	/*  release the semaphore */
+	nPages = get_user_pages_fast(ulStart, len, 1, pPages);
 	dev_dbg(&pdx->interface->dev, "%s nPages = %d", __func__, nPages);
 
 	if (nPages > 0) {		/*  if we succeeded */
-- 
cgit 


From 5f1a1369e89e05baba1df72834c9b48cd1ce45e1 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Wed, 2 Oct 2013 16:27:52 +0200
Subject: sep: Convert sep_lock_user_pages() to get_user_pages_fast()

CC: Mark Allyn <mark.a.allyn@intel.com>
CC: Jayant Mangalampalli <jayant.mangalampalli@intel.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/sep/sep_main.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/sep/sep_main.c b/drivers/staging/sep/sep_main.c
index 6a98a208bbf2..11f5b2117457 100644
--- a/drivers/staging/sep/sep_main.c
+++ b/drivers/staging/sep/sep_main.c
@@ -1263,13 +1263,8 @@ static int sep_lock_user_pages(struct sep_device *sep,
 	}
 
 	/* Convert the application virtual address into a set of physical */
-	down_read(&current->mm->mmap_sem);
-	result = get_user_pages(current, current->mm, app_virt_addr,
-		num_pages,
-		((in_out_flag == SEP_DRIVER_IN_FLAG) ? 0 : 1),
-		0, page_array, NULL);
-
-	up_read(&current->mm->mmap_sem);
+	result = get_user_pages_fast(app_virt_addr, num_pages,
+		((in_out_flag == SEP_DRIVER_IN_FLAG) ? 0 : 1), page_array);
 
 	/* Check the number of pages locked - if not all then exit with error */
 	if (result != num_pages) {
-- 
cgit 


From e4a49a6015efa6bd35f107640a497380d5e4ed48 Mon Sep 17 00:00:00 2001
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Fri, 4 Oct 2013 13:35:35 +0300
Subject: usb: remove intel_mid_otg.h

It's not used anymore.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/usb/intel_mid_otg.h | 180 --------------------------------------
 1 file changed, 180 deletions(-)
 delete mode 100644 include/linux/usb/intel_mid_otg.h

diff --git a/include/linux/usb/intel_mid_otg.h b/include/linux/usb/intel_mid_otg.h
deleted file mode 100644
index 756cf5543ffd..000000000000
--- a/include/linux/usb/intel_mid_otg.h
+++ /dev/null
@@ -1,180 +0,0 @@
-/*
- * Intel MID (Langwell/Penwell) USB OTG Transceiver driver
- * Copyright (C) 2008 - 2010, Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#ifndef __INTEL_MID_OTG_H
-#define __INTEL_MID_OTG_H
-
-#include <linux/pm.h>
-#include <linux/usb/otg.h>
-#include <linux/notifier.h>
-
-struct intel_mid_otg_xceiv;
-
-/* This is a common data structure for Intel MID platform to
- * save values of the OTG state machine */
-struct otg_hsm {
-	/* Input */
-	int a_bus_resume;
-	int a_bus_suspend;
-	int a_conn;
-	int a_sess_vld;
-	int a_srp_det;
-	int a_vbus_vld;
-	int b_bus_resume;
-	int b_bus_suspend;
-	int b_conn;
-	int b_se0_srp;
-	int b_ssend_srp;
-	int b_sess_end;
-	int b_sess_vld;
-	int id;
-/* id values */
-#define ID_B		0x05
-#define ID_A		0x04
-#define ID_ACA_C	0x03
-#define ID_ACA_B	0x02
-#define ID_ACA_A	0x01
-	int power_up;
-	int adp_change;
-	int test_device;
-
-	/* Internal variables */
-	int a_set_b_hnp_en;
-	int b_srp_done;
-	int b_hnp_enable;
-	int hnp_poll_enable;
-
-	/* Timeout indicator for timers */
-	int a_wait_vrise_tmout;
-	int a_wait_bcon_tmout;
-	int a_aidl_bdis_tmout;
-	int a_bidl_adis_tmout;
-	int a_bidl_adis_tmr;
-	int a_wait_vfall_tmout;
-	int b_ase0_brst_tmout;
-	int b_bus_suspend_tmout;
-	int b_srp_init_tmout;
-	int b_srp_fail_tmout;
-	int b_srp_fail_tmr;
-	int b_adp_sense_tmout;
-
-	/* Informative variables */
-	int a_bus_drop;
-	int a_bus_req;
-	int a_clr_err;
-	int b_bus_req;
-	int a_suspend_req;
-	int b_bus_suspend_vld;
-
-	/* Output */
-	int drv_vbus;
-	int loc_conn;
-	int loc_sof;
-
-	/* Others */
-	int vbus_srp_up;
-};
-
-/* must provide ULPI access function to read/write registers implemented in
- * ULPI address space */
-struct iotg_ulpi_access_ops {
-	int	(*read)(struct intel_mid_otg_xceiv *iotg, u8 reg, u8 *val);
-	int	(*write)(struct intel_mid_otg_xceiv *iotg, u8 reg, u8 val);
-};
-
-#define OTG_A_DEVICE	0x0
-#define OTG_B_DEVICE	0x1
-
-/*
- * the Intel MID (Langwell/Penwell) otg transceiver driver needs to interact
- * with device and host drivers to implement the USB OTG related feature. More
- * function members are added based on usb_phy data structure for this
- * purpose.
- */
-struct intel_mid_otg_xceiv {
-	struct usb_phy		otg;
-	struct otg_hsm		hsm;
-
-	/* base address */
-	void __iomem		*base;
-
-	/* ops to access ulpi */
-	struct iotg_ulpi_access_ops	ulpi_ops;
-
-	/* atomic notifier for interrupt context */
-	struct atomic_notifier_head	iotg_notifier;
-
-	/* start/stop USB Host function */
-	int	(*start_host)(struct intel_mid_otg_xceiv *iotg);
-	int	(*stop_host)(struct intel_mid_otg_xceiv *iotg);
-
-	/* start/stop USB Peripheral function */
-	int	(*start_peripheral)(struct intel_mid_otg_xceiv *iotg);
-	int	(*stop_peripheral)(struct intel_mid_otg_xceiv *iotg);
-
-	/* start/stop ADP sense/probe function */
-	int	(*set_adp_probe)(struct intel_mid_otg_xceiv *iotg,
-					bool enabled, int dev);
-	int	(*set_adp_sense)(struct intel_mid_otg_xceiv *iotg,
-					bool enabled);
-
-#ifdef CONFIG_PM
-	/* suspend/resume USB host function */
-	int	(*suspend_host)(struct intel_mid_otg_xceiv *iotg,
-					pm_message_t message);
-	int	(*resume_host)(struct intel_mid_otg_xceiv *iotg);
-
-	int	(*suspend_peripheral)(struct intel_mid_otg_xceiv *iotg,
-					pm_message_t message);
-	int	(*resume_peripheral)(struct intel_mid_otg_xceiv *iotg);
-#endif
-
-};
-static inline
-struct intel_mid_otg_xceiv *otg_to_mid_xceiv(struct usb_phy *otg)
-{
-	return container_of(otg, struct intel_mid_otg_xceiv, otg);
-}
-
-#define MID_OTG_NOTIFY_CONNECT		0x0001
-#define MID_OTG_NOTIFY_DISCONN		0x0002
-#define MID_OTG_NOTIFY_HSUSPEND		0x0003
-#define MID_OTG_NOTIFY_HRESUME		0x0004
-#define MID_OTG_NOTIFY_CSUSPEND		0x0005
-#define MID_OTG_NOTIFY_CRESUME		0x0006
-#define MID_OTG_NOTIFY_HOSTADD		0x0007
-#define MID_OTG_NOTIFY_HOSTREMOVE	0x0008
-#define MID_OTG_NOTIFY_CLIENTADD	0x0009
-#define MID_OTG_NOTIFY_CLIENTREMOVE	0x000a
-
-static inline int
-intel_mid_otg_register_notifier(struct intel_mid_otg_xceiv *iotg,
-				struct notifier_block *nb)
-{
-	return atomic_notifier_chain_register(&iotg->iotg_notifier, nb);
-}
-
-static inline void
-intel_mid_otg_unregister_notifier(struct intel_mid_otg_xceiv *iotg,
-				struct notifier_block *nb)
-{
-	atomic_notifier_chain_unregister(&iotg->iotg_notifier, nb);
-}
-
-#endif /* __INTEL_MID_OTG_H */
-- 
cgit 


From 7a32d9be33e2409e19fef4434188d49d1fb1959e Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Fri, 4 Oct 2013 10:40:45 -0500
Subject: usb: wusbcore: add support for isoc out transfers

This patch adds support for isochronous out transfers to the HWA.  The
primary changes are:

1.  Add a isoc_pack_desc_urb field to struct wa_seg.  This urb is used
to send the isochronous packet info message to the HWA which describes
the isoc data segment(s) that will be sent as the payload of the
transfer request.

2.  Use the URB iso_frame_desc field to populate the isochronous packet
info message and data segments sent to the HWA.

3.  After the data is sent and transfer result is returned from the
HWA, read the isoc packet status message from the HWA.  The contents of
the isoc packet status message are used to set the iso_frame_desc
status and actual_length fields in the original isoc URB.  This feature
required the addition of a some state tracking variables in struct wahc
so the dti_urb knows what type of packet it expects to receive next.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/wa-hc.h   |  15 ++
 drivers/usb/wusbcore/wa-xfer.c | 493 ++++++++++++++++++++++++++++++++---------
 2 files changed, 406 insertions(+), 102 deletions(-)

diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h
index ab399343757e..b44aca3f25dd 100644
--- a/drivers/usb/wusbcore/wa-hc.h
+++ b/drivers/usb/wusbcore/wa-hc.h
@@ -122,6 +122,11 @@ struct wa_rpipe {
 };
 
 
+enum wa_dti_state {
+	WA_DTI_TRANSFER_RESULT_PENDING,
+	WA_DTI_ISOC_PACKET_STATUS_PENDING
+};
+
 /**
  * Instance of a HWA Host Controller
  *
@@ -181,6 +186,15 @@ struct wahc {
 	spinlock_t rpipe_bm_lock;	/* protect rpipe_bm */
 	struct mutex rpipe_mutex;	/* assigning resources to endpoints */
 
+	/*
+	 * dti_state is used to track the state of the dti_urb.  When dti_state
+	 * is WA_DTI_ISOC_PACKET_STATUS_PENDING, dti_isoc_xfer_in_progress and
+	 * dti_isoc_xfer_seg identify which xfer the incoming isoc packet status
+	 * refers to.
+	 */
+	enum wa_dti_state dti_state;
+	u32 dti_isoc_xfer_in_progress;
+	u8  dti_isoc_xfer_seg;
 	struct urb *dti_urb;		/* URB for reading xfer results */
 	struct urb *buf_in_urb;		/* URB for reading data in */
 	struct edc dti_edc;		/* DTI error density counter */
@@ -247,6 +261,7 @@ static inline void wa_init(struct wahc *wa)
 {
 	edc_init(&wa->nep_edc);
 	atomic_set(&wa->notifs_queued, 0);
+	wa->dti_state = WA_DTI_TRANSFER_RESULT_PENDING;
 	wa_rpipe_init(wa);
 	edc_init(&wa->dti_edc);
 	INIT_LIST_HEAD(&wa->xfer_list);
diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index 13faac0ea99f..e097da30a26b 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -115,6 +115,7 @@ static void wa_xfer_delayed_run(struct wa_rpipe *);
  */
 struct wa_seg {
 	struct urb tr_urb;		/* transfer request urb. */
+	struct urb *isoc_pack_desc_urb;	/* for isoc packet descriptor. */
 	struct urb *dto_urb;		/* for data output. */
 	struct list_head list_node;	/* for rpipe->req_list */
 	struct wa_xfer *xfer;		/* out xfer */
@@ -122,7 +123,6 @@ struct wa_seg {
 	enum wa_seg_status status;
 	ssize_t result;			/* bytes xfered or error */
 	struct wa_xfer_hdr xfer_hdr;
-	u8 xfer_extra[];		/* xtra space for xfer_hdr_ctl */
 };
 
 static inline void wa_seg_init(struct wa_seg *seg)
@@ -169,7 +169,7 @@ static inline void wa_xfer_init(struct wa_xfer *xfer)
 /*
  * Destroy a transfer structure
  *
- * Note that freeing xfer->seg[cnt]->urb will free the containing
+ * Note that freeing xfer->seg[cnt]->tr_urb will free the containing
  * xfer->seg[cnt] memory that was allocated by __wa_xfer_setup_segs.
  */
 static void wa_xfer_destroy(struct kref *_xfer)
@@ -178,12 +178,14 @@ static void wa_xfer_destroy(struct kref *_xfer)
 	if (xfer->seg) {
 		unsigned cnt;
 		for (cnt = 0; cnt < xfer->segs; cnt++) {
-			if (xfer->seg[cnt]) {
-				if (xfer->seg[cnt]->dto_urb) {
-					kfree(xfer->seg[cnt]->dto_urb->sg);
-					usb_free_urb(xfer->seg[cnt]->dto_urb);
+			struct wa_seg *seg = xfer->seg[cnt];
+			if (seg) {
+				usb_free_urb(seg->isoc_pack_desc_urb);
+				if (seg->dto_urb) {
+					kfree(seg->dto_urb->sg);
+					usb_free_urb(seg->dto_urb);
 				}
-				usb_free_urb(&xfer->seg[cnt]->tr_urb);
+				usb_free_urb(&seg->tr_urb);
 			}
 		}
 		kfree(xfer->seg);
@@ -291,7 +293,8 @@ static unsigned __wa_xfer_is_done(struct wa_xfer *xfer)
 				goto out;
 			}
 			urb->actual_length += seg->result;
-			if (seg->result < xfer->seg_size
+			if (!(usb_pipeisoc(xfer->urb->pipe))
+				&& seg->result < xfer->seg_size
 			    && cnt != xfer->segs-1)
 				found_short = 1;
 			dev_dbg(dev, "xfer %p ID %08X#%u: DONE short %d "
@@ -429,39 +432,53 @@ static ssize_t __wa_xfer_setup_sizes(struct wa_xfer *xfer,
 		result = sizeof(struct wa_xfer_bi);
 		break;
 	case USB_ENDPOINT_XFER_ISOC:
-		dev_err(dev, "FIXME: ISOC not implemented\n");
-		result = -ENOSYS;
-		goto error;
+		if (usb_pipeout(urb->pipe)) {
+			*pxfer_type = WA_XFER_TYPE_ISO;
+			result = sizeof(struct wa_xfer_hwaiso);
+		} else {
+			dev_err(dev, "FIXME: ISOC IN not implemented\n");
+			result = -ENOSYS;
+			goto error;
+		}
+		break;
 	default:
 		/* never happens */
 		BUG();
 		result = -EINVAL;	/* shut gcc up */
-	};
+	}
 	xfer->is_inbound = urb->pipe & USB_DIR_IN ? 1 : 0;
 	xfer->is_dma = urb->transfer_flags & URB_NO_TRANSFER_DMA_MAP ? 1 : 0;
-	xfer->seg_size = le16_to_cpu(rpipe->descr.wBlocks)
-		* 1 << (xfer->wa->wa_descr->bRPipeBlockSize - 1);
-	/* Compute the segment size and make sure it is a multiple of
-	 * the maxpktsize (WUSB1.0[8.3.3.1])...not really too much of
-	 * a check (FIXME) */
+
 	maxpktsize = le16_to_cpu(rpipe->descr.wMaxPacketSize);
-	if (xfer->seg_size < maxpktsize) {
-		dev_err(dev, "HW BUG? seg_size %zu smaller than maxpktsize "
-			"%zu\n", xfer->seg_size, maxpktsize);
-		result = -EINVAL;
-		goto error;
-	}
-	xfer->seg_size = (xfer->seg_size / maxpktsize) * maxpktsize;
-	xfer->segs = DIV_ROUND_UP(urb->transfer_buffer_length, xfer->seg_size);
-	if (xfer->segs >= WA_SEGS_MAX) {
-		dev_err(dev, "BUG? ops, number of segments %d bigger than %d\n",
-			(int)(urb->transfer_buffer_length / xfer->seg_size),
-			WA_SEGS_MAX);
-		result = -EINVAL;
-		goto error;
+	if ((rpipe->descr.bmAttribute & 0x3) == USB_ENDPOINT_XFER_ISOC) {
+		xfer->seg_size = maxpktsize;
+		xfer->segs = urb->number_of_packets;
+	} else {
+		xfer->seg_size = le16_to_cpu(rpipe->descr.wBlocks)
+			* 1 << (xfer->wa->wa_descr->bRPipeBlockSize - 1);
+		/* Compute the segment size and make sure it is a multiple of
+		 * the maxpktsize (WUSB1.0[8.3.3.1])...not really too much of
+		 * a check (FIXME) */
+		if (xfer->seg_size < maxpktsize) {
+			dev_err(dev,
+				"HW BUG? seg_size %zu smaller than maxpktsize %zu\n",
+				xfer->seg_size, maxpktsize);
+			result = -EINVAL;
+			goto error;
+		}
+		xfer->seg_size = (xfer->seg_size / maxpktsize) * maxpktsize;
+		xfer->segs = DIV_ROUND_UP(urb->transfer_buffer_length,
+						xfer->seg_size);
+		if (xfer->segs >= WA_SEGS_MAX) {
+			dev_err(dev, "BUG? oops, number of segments %d bigger than %d\n",
+				(urb->transfer_buffer_length/xfer->seg_size),
+				WA_SEGS_MAX);
+			result = -EINVAL;
+			goto error;
+		}
+		if (xfer->segs == 0 && *pxfer_type == WA_XFER_TYPE_CTL)
+			xfer->segs = 1;
 	}
-	if (xfer->segs == 0 && *pxfer_type == WA_XFER_TYPE_CTL)
-		xfer->segs = 1;
 error:
 	return result;
 }
@@ -491,8 +508,26 @@ static void __wa_xfer_setup_hdr0(struct wa_xfer *xfer,
 	}
 	case WA_XFER_TYPE_BI:
 		break;
-	case WA_XFER_TYPE_ISO:
-		printk(KERN_ERR "FIXME: ISOC not implemented\n");
+	case WA_XFER_TYPE_ISO: {
+		struct wa_xfer_hwaiso *xfer_iso =
+			container_of(xfer_hdr0, struct wa_xfer_hwaiso, hdr);
+		struct wa_xfer_packet_info_hwaiso *packet_desc =
+			((void *)xfer_iso) + xfer_hdr_size;
+		struct usb_iso_packet_descriptor *iso_frame_desc =
+			&(xfer->urb->iso_frame_desc[0]);
+		/* populate the isoc section of the transfer request. */
+		xfer_iso->dwNumOfPackets = cpu_to_le32(1);
+		/*
+		 * populate isoc packet descriptor.  This assumes 1
+		 * packet per segment.
+		 */
+		packet_desc->wLength = cpu_to_le16(sizeof(*packet_desc) +
+			sizeof(packet_desc->PacketLength[0]));
+		packet_desc->bPacketType = WA_XFER_ISO_PACKET_INFO;
+		packet_desc->PacketLength[0] =
+			cpu_to_le16(iso_frame_desc->length);
+		break;
+	}
 	default:
 		BUG();
 	};
@@ -569,6 +604,72 @@ static void wa_seg_dto_cb(struct urb *urb)
 	}
 }
 
+/*
+ * Callback for the isoc packet descriptor phase of the segment request
+ *
+ * Check wa_seg_tr_cb(); most comments also apply here because this
+ * function does almost the same thing and they work closely
+ * together.
+ *
+ * If the seg request has failed but this phase has succeeded,
+ * wa_seg_tr_cb() has already failed the segment and moved the
+ * status to WA_SEG_ERROR, so this will go through 'case 0' and
+ * effectively do nothing.
+ */
+static void wa_seg_iso_pack_desc_cb(struct urb *urb)
+{
+	struct wa_seg *seg = urb->context;
+	struct wa_xfer *xfer = seg->xfer;
+	struct wahc *wa;
+	struct device *dev;
+	struct wa_rpipe *rpipe;
+	unsigned long flags;
+	unsigned rpipe_ready = 0;
+	u8 done = 0;
+
+	switch (urb->status) {
+	case 0:
+		spin_lock_irqsave(&xfer->lock, flags);
+		wa = xfer->wa;
+		dev = &wa->usb_iface->dev;
+		dev_dbg(dev, "iso xfer %p#%u: packet descriptor done\n",
+			xfer, seg->index);
+		if (xfer->is_inbound && seg->status < WA_SEG_PENDING)
+			seg->status = WA_SEG_PENDING;
+		spin_unlock_irqrestore(&xfer->lock, flags);
+		break;
+	case -ECONNRESET:	/* URB unlinked; no need to do anything */
+	case -ENOENT:		/* as it was done by the who unlinked us */
+		break;
+	default:		/* Other errors ... */
+		spin_lock_irqsave(&xfer->lock, flags);
+		wa = xfer->wa;
+		dev = &wa->usb_iface->dev;
+		rpipe = xfer->ep->hcpriv;
+		pr_err_ratelimited("iso xfer %p#%u: packet descriptor error %d\n",
+				xfer, seg->index, urb->status);
+		if (edc_inc(&wa->nep_edc, EDC_MAX_ERRORS,
+			    EDC_ERROR_TIMEFRAME)){
+			dev_err(dev, "DTO: URB max acceptable errors exceeded, resetting device\n");
+			wa_reset_all(wa);
+		}
+		if (seg->status != WA_SEG_ERROR) {
+			usb_unlink_urb(seg->dto_urb);
+			seg->status = WA_SEG_ERROR;
+			seg->result = urb->status;
+			xfer->segs_done++;
+			__wa_xfer_abort(xfer);
+			rpipe_ready = rpipe_avail_inc(rpipe);
+			done = __wa_xfer_is_done(xfer);
+		}
+		spin_unlock_irqrestore(&xfer->lock, flags);
+		if (done)
+			wa_xfer_completion(xfer);
+		if (rpipe_ready)
+			wa_xfer_delayed_run(rpipe);
+	}
+}
+
 /*
  * Callback for the segment request
  *
@@ -583,7 +684,7 @@ static void wa_seg_dto_cb(struct urb *urb)
  * We have to check before setting the status to WA_SEG_PENDING
  * because sometimes the xfer result callback arrives before this
  * callback (geeeeeeze), so it might happen that we are already in
- * another state. As well, we don't set it if the transfer is inbound,
+ * another state. As well, we don't set it if the transfer is not inbound,
  * as in that case, wa_seg_dto_cb will do it when the OUT data phase
  * finishes.
  */
@@ -603,8 +704,11 @@ static void wa_seg_tr_cb(struct urb *urb)
 		spin_lock_irqsave(&xfer->lock, flags);
 		wa = xfer->wa;
 		dev = &wa->usb_iface->dev;
-		dev_dbg(dev, "xfer %p#%u: request done\n", xfer, seg->index);
-		if (xfer->is_inbound && seg->status < WA_SEG_PENDING)
+		dev_dbg(dev, "xfer %p ID 0x%08X#%u: request done\n",
+			xfer, wa_xfer_id(xfer), seg->index);
+		if (xfer->is_inbound &&
+			seg->status < WA_SEG_PENDING &&
+			!(usb_pipeisoc(xfer->urb->pipe)))
 			seg->status = WA_SEG_PENDING;
 		spin_unlock_irqrestore(&xfer->lock, flags);
 		break;
@@ -626,6 +730,7 @@ static void wa_seg_tr_cb(struct urb *urb)
 				"exceeded, resetting device\n");
 			wa_reset_all(wa);
 		}
+		usb_unlink_urb(seg->isoc_pack_desc_urb);
 		usb_unlink_urb(seg->dto_urb);
 		seg->status = WA_SEG_ERROR;
 		seg->result = urb->status;
@@ -723,6 +828,25 @@ static struct scatterlist *wa_xfer_create_subset_sg(struct scatterlist *in_sg,
 	return out_sg;
 }
 
+/*
+ * Populate DMA buffer info for the isoc dto urb.
+ */
+static void __wa_populate_dto_urb_iso(struct wa_xfer *xfer,
+	struct wa_seg *seg,	int curr_iso_frame)
+{
+	/*
+	 * dto urb buffer address and size pulled from
+	 * iso_frame_desc.
+	 */
+	seg->dto_urb->transfer_dma = xfer->urb->transfer_dma +
+		xfer->urb->iso_frame_desc[curr_iso_frame].offset;
+	seg->dto_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+	seg->dto_urb->sg = NULL;
+	seg->dto_urb->num_sgs = 0;
+	seg->dto_urb->transfer_buffer_length =
+		xfer->urb->iso_frame_desc[curr_iso_frame].length;
+}
+
 /*
  * Populate buffer ptr and size, DMA buffer or SG list for the dto urb.
  */
@@ -788,7 +912,7 @@ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size)
 	struct usb_device *usb_dev = xfer->wa->usb_dev;
 	const struct usb_endpoint_descriptor *dto_epd = xfer->wa->dto_epd;
 	struct wa_seg *seg;
-	size_t buf_itr, buf_size, buf_itr_size;
+	size_t buf_itr, buf_size, buf_itr_size, iso_pkt_descr_size = 0;
 
 	result = -ENOMEM;
 	xfer->seg = kcalloc(xfer->segs, sizeof(xfer->seg[0]), GFP_ATOMIC);
@@ -796,6 +920,17 @@ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size)
 		goto error_segs_kzalloc;
 	buf_itr = 0;
 	buf_size = xfer->urb->transfer_buffer_length;
+
+	if (usb_pipeisoc(xfer->urb->pipe)) {
+		/*
+		 * This calculation assumes one isoc packet per xfer segment.
+		 * It will need to be updated if this changes.
+		 */
+		iso_pkt_descr_size = sizeof(struct wa_xfer_packet_info_hwaiso) +
+			sizeof(__le16);
+		alloc_size += iso_pkt_descr_size;
+	}
+
 	for (cnt = 0; cnt < xfer->segs; cnt++) {
 		seg = xfer->seg[cnt] = kmalloc(alloc_size, GFP_ATOMIC);
 		if (seg == NULL)
@@ -820,16 +955,40 @@ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size)
 						dto_epd->bEndpointAddress),
 				NULL, 0, wa_seg_dto_cb, seg);
 
-			/* fill in the xfer buffer information. */
-			result = __wa_populate_dto_urb(xfer, seg,
-						buf_itr, buf_itr_size);
+			if (usb_pipeisoc(xfer->urb->pipe)) {
+				/* iso packet descriptor. */
+				seg->isoc_pack_desc_urb =
+						usb_alloc_urb(0, GFP_ATOMIC);
+				if (seg->isoc_pack_desc_urb == NULL)
+					goto error_iso_pack_desc_alloc;
+				/*
+				 * The buffer for the isoc packet descriptor
+				 * after the transfer request header in the
+				 * segment object memory buffer.
+				 */
+				usb_fill_bulk_urb(
+					seg->isoc_pack_desc_urb, usb_dev,
+					usb_sndbulkpipe(usb_dev,
+						dto_epd->bEndpointAddress),
+					(void *)(&seg->xfer_hdr) +
+						xfer_hdr_size,
+					iso_pkt_descr_size,
+					wa_seg_iso_pack_desc_cb, seg);
 
-			if (result < 0)
-				goto error_seg_outbound_populate;
+				/* fill in the xfer buffer information. */
+				__wa_populate_dto_urb_iso(xfer, seg, cnt);
+			} else {
+				/* fill in the xfer buffer information. */
+				result = __wa_populate_dto_urb(xfer, seg,
+							buf_itr, buf_itr_size);
+				if (result < 0)
+					goto error_seg_outbound_populate;
+
+				buf_itr += buf_itr_size;
+				buf_size -= buf_itr_size;
+			}
 		}
 		seg->status = WA_SEG_READY;
-		buf_itr += buf_itr_size;
-		buf_size -= buf_itr_size;
 	}
 	return 0;
 
@@ -838,6 +997,7 @@ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size)
 	 * Use the fact that cnt is left at were it failed.  The remaining
 	 * segments will be cleaned up by wa_xfer_destroy.
 	 */
+error_iso_pack_desc_alloc:
 error_seg_outbound_populate:
 	usb_free_urb(xfer->seg[cnt]->dto_urb);
 error_dto_alloc:
@@ -881,21 +1041,50 @@ static int __wa_xfer_setup(struct wa_xfer *xfer, struct urb *urb)
 	wa_xfer_id_init(xfer);
 	__wa_xfer_setup_hdr0(xfer, xfer_hdr0, xfer_type, xfer_hdr_size);
 
-	/* Fill remainig headers */
+	/* Fill remaining headers */
 	xfer_hdr = xfer_hdr0;
-	transfer_size = urb->transfer_buffer_length;
-	xfer_hdr0->dwTransferLength = transfer_size > xfer->seg_size ?
-		xfer->seg_size : transfer_size;
-	transfer_size -=  xfer->seg_size;
-	for (cnt = 1; cnt < xfer->segs; cnt++) {
-		xfer_hdr = &xfer->seg[cnt]->xfer_hdr;
-		memcpy(xfer_hdr, xfer_hdr0, xfer_hdr_size);
-		xfer_hdr->bTransferSegment = cnt;
-		xfer_hdr->dwTransferLength = transfer_size > xfer->seg_size ?
-			cpu_to_le32(xfer->seg_size)
-			: cpu_to_le32(transfer_size);
-		xfer->seg[cnt]->status = WA_SEG_READY;
+	if (xfer_type == WA_XFER_TYPE_ISO) {
+		xfer_hdr0->dwTransferLength =
+			cpu_to_le32(xfer->urb->iso_frame_desc[0].length);
+		for (cnt = 1; cnt < xfer->segs; cnt++) {
+			struct usb_iso_packet_descriptor *iso_frame_desc =
+				&(xfer->urb->iso_frame_desc[cnt]);
+			struct wa_xfer_packet_info_hwaiso *packet_desc;
+
+			xfer_hdr = &xfer->seg[cnt]->xfer_hdr;
+			packet_desc = ((void *)xfer_hdr) + xfer_hdr_size;
+			/*
+			 * Copy values from the 0th header and isoc packet
+			 * descriptor.  Segment specific values are set below.
+			 */
+			memcpy(xfer_hdr, xfer_hdr0,
+				xfer_hdr_size + sizeof(*packet_desc));
+			xfer_hdr->bTransferSegment = cnt;
+			xfer_hdr->dwTransferLength =
+				cpu_to_le32(iso_frame_desc->length);
+			/* populate isoc packet descriptor length. */
+			packet_desc->PacketLength[0] =
+				cpu_to_le16(iso_frame_desc->length);
+
+			xfer->seg[cnt]->status = WA_SEG_READY;
+		}
+	} else {
+		transfer_size = urb->transfer_buffer_length;
+		xfer_hdr0->dwTransferLength = transfer_size > xfer->seg_size ?
+			cpu_to_le32(xfer->seg_size) :
+			cpu_to_le32(transfer_size);
 		transfer_size -=  xfer->seg_size;
+		for (cnt = 1; cnt < xfer->segs; cnt++) {
+			xfer_hdr = &xfer->seg[cnt]->xfer_hdr;
+			memcpy(xfer_hdr, xfer_hdr0, xfer_hdr_size);
+			xfer_hdr->bTransferSegment = cnt;
+			xfer_hdr->dwTransferLength =
+				transfer_size > xfer->seg_size ?
+					cpu_to_le32(xfer->seg_size)
+					: cpu_to_le32(transfer_size);
+			xfer->seg[cnt]->status = WA_SEG_READY;
+			transfer_size -=  xfer->seg_size;
+		}
 	}
 	xfer_hdr->bTransferSegment |= 0x80;	/* this is the last segment */
 	result = 0;
@@ -916,16 +1105,25 @@ static int __wa_seg_submit(struct wa_rpipe *rpipe, struct wa_xfer *xfer,
 	/* submit the transfer request. */
 	result = usb_submit_urb(&seg->tr_urb, GFP_ATOMIC);
 	if (result < 0) {
-		printk(KERN_ERR "xfer %p#%u: REQ submit failed: %d\n",
-		       xfer, seg->index, result);
+		pr_err("%s: xfer %p#%u: REQ submit failed: %d\n",
+		       __func__, xfer, seg->index, result);
 		goto error_seg_submit;
 	}
+	/* submit the isoc packet descriptor if present. */
+	if (seg->isoc_pack_desc_urb) {
+		result = usb_submit_urb(seg->isoc_pack_desc_urb, GFP_ATOMIC);
+		if (result < 0) {
+			pr_err("%s: xfer %p#%u: ISO packet descriptor submit failed: %d\n",
+			       __func__, xfer, seg->index, result);
+			goto error_iso_pack_desc_submit;
+		}
+	}
 	/* submit the out data if this is an out request. */
 	if (seg->dto_urb) {
 		result = usb_submit_urb(seg->dto_urb, GFP_ATOMIC);
 		if (result < 0) {
-			printk(KERN_ERR "xfer %p#%u: DTO submit failed: %d\n",
-			       xfer, seg->index, result);
+			pr_err("%s: xfer %p#%u: DTO submit failed: %d\n",
+			       __func__, xfer, seg->index, result);
 			goto error_dto_submit;
 		}
 	}
@@ -934,6 +1132,8 @@ static int __wa_seg_submit(struct wa_rpipe *rpipe, struct wa_xfer *xfer,
 	return 0;
 
 error_dto_submit:
+	usb_unlink_urb(seg->isoc_pack_desc_urb);
+error_iso_pack_desc_submit:
 	usb_unlink_urb(&seg->tr_urb);
 error_seg_submit:
 	seg->status = WA_SEG_ERROR;
@@ -1565,7 +1765,12 @@ static void wa_xfer_result_chew(struct wahc *wa, struct wa_xfer *xfer,
 	/* FIXME: we ignore warnings, tally them for stats */
 	if (usb_status & 0x40) 		/* Warning?... */
 		usb_status = 0;		/* ... pass */
-	if (xfer->is_inbound) {	/* IN data phase: read to buffer */
+	if (usb_pipeisoc(xfer->urb->pipe)) {
+		/* set up WA state to read the isoc packet status next. */
+		wa->dti_isoc_xfer_in_progress = wa_xfer_id(xfer);
+		wa->dti_isoc_xfer_seg = seg_idx;
+		wa->dti_state = WA_DTI_ISOC_PACKET_STATUS_PENDING;
+	} else if (xfer->is_inbound) {	/* IN data phase: read to buffer */
 		seg->status = WA_SEG_DTI_PENDING;
 		BUG_ON(wa->buf_in_urb->status == -EINPROGRESS);
 		/* this should always be 0 before a resubmit. */
@@ -1693,6 +1898,85 @@ segment_aborted:
 	spin_unlock_irqrestore(&xfer->lock, flags);
 }
 
+/*
+ * Process a isochronous packet status message
+ *
+ * inbound transfers: need to schedule a buf_in_urb read
+ */
+static void wa_process_iso_packet_status(struct wahc *wa, struct urb *urb)
+{
+	struct device *dev = &wa->usb_iface->dev;
+	struct wa_xfer_packet_status_hwaiso *packet_status;
+	struct wa_xfer *xfer;
+	unsigned long flags;
+	struct wa_seg *seg;
+	struct wa_rpipe *rpipe;
+	unsigned done = 0;
+	unsigned rpipe_ready = 0;
+	const int expected_size = sizeof(*packet_status) +
+				sizeof(packet_status->PacketStatus[0]);
+
+	/* We have a xfer result buffer; check it */
+	dev_dbg(dev, "DTI: isoc packet status %d bytes at %p\n",
+		urb->actual_length, urb->transfer_buffer);
+	if (urb->actual_length != expected_size) {
+		dev_err(dev, "DTI Error: isoc packet status--bad urb length (%d bytes vs %zu needed)\n",
+			urb->actual_length, expected_size);
+		goto error_parse_buffer;
+	}
+	packet_status = (struct wa_xfer_packet_status_hwaiso *)(wa->dti_buf);
+	if (le16_to_cpu(packet_status->wLength) != expected_size) {
+		dev_err(dev, "DTI Error: isoc packet status--bad length %u\n",
+			le16_to_cpu(packet_status->wLength));
+		goto error_parse_buffer;
+	}
+	if (packet_status->bPacketType != WA_XFER_ISO_PACKET_STATUS) {
+		dev_err(dev, "DTI Error: isoc packet status--bad type 0x%02x\n",
+			packet_status->bPacketType);
+		goto error_parse_buffer;
+	}
+	xfer = wa_xfer_get_by_id(wa, wa->dti_isoc_xfer_in_progress);
+	if (xfer == NULL) {
+		dev_err(dev, "DTI Error: isoc packet status--unknown xfer 0x%08x\n",
+			wa->dti_isoc_xfer_in_progress);
+		goto error_parse_buffer;
+	}
+	spin_lock_irqsave(&xfer->lock, flags);
+	if (unlikely(wa->dti_isoc_xfer_seg >= xfer->segs))
+		goto error_bad_seg;
+	seg = xfer->seg[wa->dti_isoc_xfer_seg];
+	rpipe = xfer->ep->hcpriv;
+
+	/* set urb isoc packet status and length. */
+	xfer->urb->iso_frame_desc[seg->index].status =
+		wa_xfer_status_to_errno(
+		le16_to_cpu(packet_status->PacketStatus[0].PacketStatus));
+	xfer->urb->iso_frame_desc[seg->index].actual_length =
+		le16_to_cpu(packet_status->PacketStatus[0].PacketLength);
+
+	if (!xfer->is_inbound) {
+		/* OUT transfer, complete it -- */
+		seg->status = WA_SEG_DONE;
+		xfer->segs_done++;
+		rpipe_ready = rpipe_avail_inc(rpipe);
+		done = __wa_xfer_is_done(xfer);
+	}
+	spin_unlock_irqrestore(&xfer->lock, flags);
+	wa->dti_state = WA_DTI_TRANSFER_RESULT_PENDING;
+	if (done)
+		wa_xfer_completion(xfer);
+	if (rpipe_ready)
+		wa_xfer_delayed_run(rpipe);
+	wa_xfer_put(xfer);
+	return;
+
+error_bad_seg:
+	spin_unlock_irqrestore(&xfer->lock, flags);
+	wa_xfer_put(xfer);
+error_parse_buffer:
+	return;
+}
+
 /*
  * Callback for the IN data phase
  *
@@ -1799,51 +2083,56 @@ static void wa_dti_cb(struct urb *urb)
 	int result;
 	struct wahc *wa = urb->context;
 	struct device *dev = &wa->usb_iface->dev;
-	struct wa_xfer_result *xfer_result;
 	u32 xfer_id;
-	struct wa_xfer *xfer;
 	u8 usb_status;
 
 	BUG_ON(wa->dti_urb != urb);
 	switch (wa->dti_urb->status) {
 	case 0:
-		/* We have a xfer result buffer; check it */
-		dev_dbg(dev, "DTI: xfer result %d bytes at %p\n",
-			urb->actual_length, urb->transfer_buffer);
-		if (wa->dti_urb->actual_length != sizeof(*xfer_result)) {
-			dev_err(dev, "DTI Error: xfer result--bad size "
-				"xfer result (%d bytes vs %zu needed)\n",
-				urb->actual_length, sizeof(*xfer_result));
-			break;
-		}
-		xfer_result = (struct wa_xfer_result *)(wa->dti_buf);
-		if (xfer_result->hdr.bLength != sizeof(*xfer_result)) {
-			dev_err(dev, "DTI Error: xfer result--"
-				"bad header length %u\n",
-				xfer_result->hdr.bLength);
-			break;
-		}
-		if (xfer_result->hdr.bNotifyType != WA_XFER_RESULT) {
-			dev_err(dev, "DTI Error: xfer result--"
-				"bad header type 0x%02x\n",
-				xfer_result->hdr.bNotifyType);
-			break;
-		}
-		usb_status = xfer_result->bTransferStatus & 0x3f;
-		if (usb_status == WA_XFER_STATUS_NOT_FOUND)
-			/* taken care of already */
-			break;
-		xfer_id = le32_to_cpu(xfer_result->dwTransferID);
-		xfer = wa_xfer_get_by_id(wa, xfer_id);
-		if (xfer == NULL) {
-			/* FIXME: transaction might have been cancelled */
-			dev_err(dev, "DTI Error: xfer result--"
-				"unknown xfer 0x%08x (status 0x%02x)\n",
-				xfer_id, usb_status);
-			break;
+		if (wa->dti_state == WA_DTI_TRANSFER_RESULT_PENDING) {
+			struct wa_xfer_result *xfer_result;
+			struct wa_xfer *xfer;
+
+			/* We have a xfer result buffer; check it */
+			dev_dbg(dev, "DTI: xfer result %d bytes at %p\n",
+				urb->actual_length, urb->transfer_buffer);
+			if (urb->actual_length != sizeof(*xfer_result)) {
+				dev_err(dev, "DTI Error: xfer result--bad size xfer result (%d bytes vs %zu needed)\n",
+					urb->actual_length,
+					sizeof(*xfer_result));
+				break;
+			}
+			xfer_result = (struct wa_xfer_result *)(wa->dti_buf);
+			if (xfer_result->hdr.bLength != sizeof(*xfer_result)) {
+				dev_err(dev, "DTI Error: xfer result--bad header length %u\n",
+					xfer_result->hdr.bLength);
+				break;
+			}
+			if (xfer_result->hdr.bNotifyType != WA_XFER_RESULT) {
+				dev_err(dev, "DTI Error: xfer result--bad header type 0x%02x\n",
+					xfer_result->hdr.bNotifyType);
+				break;
+			}
+			usb_status = xfer_result->bTransferStatus & 0x3f;
+			if (usb_status == WA_XFER_STATUS_NOT_FOUND)
+				/* taken care of already */
+				break;
+			xfer_id = le32_to_cpu(xfer_result->dwTransferID);
+			xfer = wa_xfer_get_by_id(wa, xfer_id);
+			if (xfer == NULL) {
+				/* FIXME: transaction not found. */
+				dev_err(dev, "DTI Error: xfer result--unknown xfer 0x%08x (status 0x%02x)\n",
+					xfer_id, usb_status);
+				break;
+			}
+			wa_xfer_result_chew(wa, xfer, xfer_result);
+			wa_xfer_put(xfer);
+		} else if (wa->dti_state == WA_DTI_ISOC_PACKET_STATUS_PENDING) {
+			wa_process_iso_packet_status(wa, urb);
+		} else {
+			dev_err(dev, "DTI Error: unexpected EP state = %d\n",
+				wa->dti_state);
 		}
-		wa_xfer_result_chew(wa, xfer, xfer_result);
-		wa_xfer_put(xfer);
 		break;
 	case -ENOENT:		/* (we killed the URB)...so, no broadcast */
 	case -ESHUTDOWN:	/* going away! */
-- 
cgit 


From e81b1a6e15f77858c7ade5c071e48c94fda1226f Mon Sep 17 00:00:00 2001
From: David Cohen <david.a.cohen@linux.intel.com>
Date: Fri, 4 Oct 2013 15:30:21 -0700
Subject: usb: g_ffs: fix compilation warning
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

If USB_FUNCTIONFS is selected without USB_FUNCTIONFS_ETH and
USB_FUNCTIONFS_RNIS, u_ether.h won't be included and then
USB_ETHERNET_MODULE_PARAMAETERS macro won't be available causing the
following warning compilation:

drivers/usb/gadget/g_ffs.c:81:1: warning: data definition has no type or
storage class [enabled by default]
drivers/usb/gadget/g_ffs.c:81:1: warning: type defaults to ‘int’ in
declaration of ‘USB_ETHERNET_MODULE_PARAMETERS’ [-Wimplicit-int]
drivers/usb/gadget/g_ffs.c:81:1: warning: function declaration isn’t a
prototype [-Wstrict-prototypes]

This patch fixes the warning by making USB_ETHERNET_MODULE_PARAMETERS to
be used iff u_ether.h is included, otherwise it is not needed.

Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/g_ffs.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c
index 5327c82472ed..2344efe4f4ce 100644
--- a/drivers/usb/gadget/g_ffs.c
+++ b/drivers/usb/gadget/g_ffs.c
@@ -76,7 +76,9 @@ struct gfs_ffs_obj {
 
 USB_GADGET_COMPOSITE_OPTIONS();
 
+#if defined CONFIG_USB_FUNCTIONFS_ETH || defined CONFIG_USB_FUNCTIONFS_RNDIS
 USB_ETHERNET_MODULE_PARAMETERS();
+#endif
 
 static struct usb_device_descriptor gfs_dev_desc = {
 	.bLength		= sizeof gfs_dev_desc,
-- 
cgit 


From 476e4bf939c9b947ea49923700fbac655cc9057c Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Fri, 4 Oct 2013 09:58:07 +0530
Subject: USB: OHCI: Properly handle OHCI controller suspend

Suspend scenario in case of OHCI was not properly
handled in ochi_suspend()routine. Alan Stern
suggested, properly handle OHCI suspend scenario.

This does generic proper handling of suspend
scenario to all OHCI SOC.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ohci-hcd.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 8ada13f8dde2..310bcfe4ebc4 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1036,6 +1036,7 @@ int ohci_suspend(struct usb_hcd *hcd, bool do_wakeup)
 {
 	struct ohci_hcd	*ohci = hcd_to_ohci (hcd);
 	unsigned long	flags;
+	int		rc = 0;
 
 	/* Disable irq emission and mark HW unaccessible. Use
 	 * the spinlock to properly synchronize with possible pending
@@ -1048,7 +1049,13 @@ int ohci_suspend(struct usb_hcd *hcd, bool do_wakeup)
 	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
 	spin_unlock_irqrestore (&ohci->lock, flags);
 
-	return 0;
+	synchronize_irq(hcd->irq);
+
+	if (do_wakeup && HCD_WAKEUP_PENDING(hcd)) {
+		ohci_resume(hcd, false);
+		rc = -EBUSY;
+	}
+	return rc;
 }
 EXPORT_SYMBOL_GPL(ohci_suspend);
 
-- 
cgit 


From 056ca85dab838bf064485b6cd73ddfcd9bf707e7 Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Fri, 4 Oct 2013 09:58:08 +0530
Subject: USB: OHCI: Properly handle ohci-at91 suspend

Suspend scenario in case of ohci-at91 glue was not properly handled
as it was not suspending generic part of ohci controller. Alan Stern
suggested, properly handle ohci-at91 suspend scenario.

Calling explicitly the ohci_suspend() routine in ohci_hcd_at91_drv_suspend()
will ensure proper handling of suspend scenario. This task is sugested
by Alan Stern.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ohci-at91.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 476b5a5baf25..f2d840370a87 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -636,8 +636,14 @@ ohci_hcd_at91_drv_suspend(struct platform_device *pdev, pm_message_t mesg)
 {
 	struct usb_hcd	*hcd = platform_get_drvdata(pdev);
 	struct ohci_hcd	*ohci = hcd_to_ohci(hcd);
+	bool		do_wakeup = device_may_wakeup(&pdev->dev);
+	int		ret;
 
-	if (device_may_wakeup(&pdev->dev))
+	ret = ohci_suspend(hcd, do_wakeup);
+	if (ret)
+		return ret;
+
+	if (do_wakeup)
 		enable_irq_wake(hcd->irq);
 
 	/*
@@ -658,7 +664,7 @@ ohci_hcd_at91_drv_suspend(struct platform_device *pdev, pm_message_t mesg)
 		at91_stop_clock();
 	}
 
-	return 0;
+	return ret;
 }
 
 static int ohci_hcd_at91_drv_resume(struct platform_device *pdev)
-- 
cgit 


From 19d339430403336f2f3c9d502db5f4e51fa21729 Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Fri, 4 Oct 2013 09:58:09 +0530
Subject: USB: OHCI: Properly handle ohci-s3c2410 suspend

Suspend scenario in case of ohci-s3c2410 glue was not
properly handled as it was not suspending generic part
of ohci controller. Alan Stern suggested, properly handle
ohci-s3c2410 suspend scenario.

Calling explicitly the ohci_suspend()
routine in ohci_hcd_s3c2410_drv_suspend() will ensure
proper handling of suspend scenario.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ohci-s3c2410.c | 21 ++++-----------------
 1 file changed, 4 insertions(+), 17 deletions(-)

diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c
index be3429e08d90..b5bf9b7a54fc 100644
--- a/drivers/usb/host/ohci-s3c2410.c
+++ b/drivers/usb/host/ohci-s3c2410.c
@@ -426,28 +426,15 @@ static int ohci_hcd_s3c2410_drv_remove(struct platform_device *pdev)
 static int ohci_hcd_s3c2410_drv_suspend(struct device *dev)
 {
 	struct usb_hcd *hcd = dev_get_drvdata(dev);
-	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
 	struct platform_device *pdev = to_platform_device(dev);
-	unsigned long flags;
+	bool do_wakeup = device_may_wakeup(dev);
 	int rc = 0;
 
-	/*
-	 * Root hub was already suspended. Disable irq emission and
-	 * mark HW unaccessible, bail out if RH has been resumed. Use
-	 * the spinlock to properly synchronize with possible pending
-	 * RH suspend or resume activity.
-	 */
-	spin_lock_irqsave(&ohci->lock, flags);
-	if (ohci->rh_state != OHCI_RH_SUSPENDED) {
-		rc = -EINVAL;
-		goto bail;
-	}
-
-	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+	rc = ohci_suspend(hcd, do_wakeup);
+	if (rc)
+		return rc;
 
 	s3c2410_stop_hc(pdev);
-bail:
-	spin_unlock_irqrestore(&ohci->lock, flags);
 
 	return rc;
 }
-- 
cgit 


From 86a63f10211ba7d249763bbe10b52073273affa8 Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Fri, 4 Oct 2013 09:58:10 +0530
Subject: USB: OHCI: Properly handle ohci-da8xx suspend

Suspend scenario in case of ohci-da8xx glue was not
properly handled as it was not suspending generic part
of ohci controller. Alan Stern suggested, properly handle
ohci-da8xx suspend scenario.

Calling explicitly the ohci_suspend()
routine in ohci_da8xx_suspend() will ensure proper
handling of suspend scenario.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ohci-da8xx.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c
index 9be59f11e051..f8238a41c98c 100644
--- a/drivers/usb/host/ohci-da8xx.c
+++ b/drivers/usb/host/ohci-da8xx.c
@@ -406,19 +406,26 @@ static int ohci_hcd_da8xx_drv_remove(struct platform_device *dev)
 }
 
 #ifdef CONFIG_PM
-static int ohci_da8xx_suspend(struct platform_device *dev, pm_message_t message)
+static int ohci_da8xx_suspend(struct platform_device *pdev,
+				pm_message_t message)
 {
-	struct usb_hcd	*hcd	= platform_get_drvdata(dev);
+	struct usb_hcd	*hcd	= platform_get_drvdata(pdev);
 	struct ohci_hcd	*ohci	= hcd_to_ohci(hcd);
+	bool		do_wakeup	= device_may_wakeup(&pdev->dev);
+	int		ret;
 
 	if (time_before(jiffies, ohci->next_statechange))
 		msleep(5);
 	ohci->next_statechange = jiffies;
 
+	ret = ohci_suspend(hcd, do_wakeup);
+	if (ret)
+		return ret;
+
 	ohci_da8xx_clock(0);
 	hcd->state = HC_STATE_SUSPENDED;
-	dev->dev.power.power_state = PMSG_SUSPEND;
-	return 0;
+
+	return ret;
 }
 
 static int ohci_da8xx_resume(struct platform_device *dev)
-- 
cgit 


From 018258b4360b99b41c50ece917111f138e2314e7 Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Fri, 4 Oct 2013 09:58:11 +0530
Subject: USB: OHCI: Properly handle ohci-ep93xx suspend

Suspend scenario in case of ohci-ep93xx glue was not
properly handled as it was not suspending generic part
of ohci controller. Alan Stern suggested, properly handle
ohci-ep93xx suspend scenario.

Calling explicitly the ohci_suspend() routine in
ohci_hcd_ep93xx_drv_suspend() will ensure proper handling of
suspend scenario.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ohci-ep93xx.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c
index 492f681c70f2..08409bfa1cde 100644
--- a/drivers/usb/host/ohci-ep93xx.c
+++ b/drivers/usb/host/ohci-ep93xx.c
@@ -112,13 +112,20 @@ static int ohci_hcd_ep93xx_drv_suspend(struct platform_device *pdev, pm_message_
 {
 	struct usb_hcd *hcd = platform_get_drvdata(pdev);
 	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+	bool do_wakeup = device_may_wakeup(&pdev->dev);
+	int ret;
 
 	if (time_before(jiffies, ohci->next_statechange))
 		msleep(5);
 	ohci->next_statechange = jiffies;
 
-	clk_disable(usb_host_clock);
-	return 0;
+	ret = ohci_suspend(hcd, do_wakeup);
+	if (ret)
+		return ret;
+
+	ep93xx_stop_hc(&pdev->dev);
+
+	return ret;
 }
 
 static int ohci_hcd_ep93xx_drv_resume(struct platform_device *pdev)
-- 
cgit 


From fea0896fd36cff487685970bfc36ddd96352d95b Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Fri, 4 Oct 2013 09:58:12 +0530
Subject: USB: OHCI: Properly handle ohci-exynos suspend

Suspend scenario in case of ohci-exynos glue was not
properly handled as it was not suspending generic part
of ohci controller. Alan Stern suggested, properly handle
ohci-exynos suspend scenario.

Calling explicitly the ohci_suspend() routine in
exynos_ohci_suspend() will ensure proper handling of suspend
scenario.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ohci-exynos.c | 20 +++++---------------
 1 file changed, 5 insertions(+), 15 deletions(-)

diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c
index 3e4bc74f76ab..f5f372e02a99 100644
--- a/drivers/usb/host/ohci-exynos.c
+++ b/drivers/usb/host/ohci-exynos.c
@@ -203,24 +203,15 @@ static int exynos_ohci_suspend(struct device *dev)
 	struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd);
 	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
 	struct platform_device *pdev = to_platform_device(dev);
+	bool do_wakeup = device_may_wakeup(dev);
 	unsigned long flags;
 	int rc = 0;
 
-	/*
-	 * Root hub was already suspended. Disable irq emission and
-	 * mark HW unaccessible, bail out if RH has been resumed. Use
-	 * the spinlock to properly synchronize with possible pending
-	 * RH suspend or resume activity.
-	 */
-	spin_lock_irqsave(&ohci->lock, flags);
-	if (ohci->rh_state != OHCI_RH_SUSPENDED &&
-			ohci->rh_state != OHCI_RH_HALTED) {
-		rc = -EINVAL;
-		goto fail;
-	}
-
-	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+	rc = ohci_suspend(hcd, do_wakeup);
+	if (rc)
+		return rc;
 
+	spin_lock_irqsave(&ohci->lock, flags);
 	if (exynos_ohci->otg)
 		exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self);
 
@@ -228,7 +219,6 @@ static int exynos_ohci_suspend(struct device *dev)
 
 	clk_disable_unprepare(exynos_ohci->clk);
 
-fail:
 	spin_unlock_irqrestore(&ohci->lock, flags);
 
 	return rc;
-- 
cgit 


From 10abfa13fdb350a7520102eded195ed32afc37b7 Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Fri, 4 Oct 2013 09:58:13 +0530
Subject: USB: OHCI: Properly handle ohci-omap suspend

Suspend scenario in case of ohci-omap glue was not
properly handled as it was not suspending generic part
of ohci controller. Alan Stern suggested, properly handle
ohci-omap suspend scenario.

Calling explicitly the ohci_suspend() routine in
ohci_omap_suspend() will ensure proper handling of suspend
scenario.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ohci-omap.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index 18b27a27e7dc..f253214741ba 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -431,16 +431,23 @@ static int ohci_hcd_omap_drv_remove(struct platform_device *dev)
 
 #ifdef	CONFIG_PM
 
-static int ohci_omap_suspend(struct platform_device *dev, pm_message_t message)
+static int ohci_omap_suspend(struct platform_device *pdev, pm_message_t message)
 {
-	struct ohci_hcd	*ohci = hcd_to_ohci(platform_get_drvdata(dev));
+	struct usb_hcd *hcd = platform_get_drvdata(pdev);
+	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+	bool do_wakeup = device_may_wakeup(&pdev->dev);
+	int ret;
 
 	if (time_before(jiffies, ohci->next_statechange))
 		msleep(5);
 	ohci->next_statechange = jiffies;
 
+	ret = ohci_suspend(hcd, do_wakeup);
+	if (ret)
+		return ret;
+
 	omap_ohci_clock_power(0);
-	return 0;
+	return ret;
 }
 
 static int ohci_omap_resume(struct platform_device *dev)
-- 
cgit 


From 39dbd7df5632ac083caa01641cea831b1fe3a3ac Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Fri, 4 Oct 2013 09:58:14 +0530
Subject: USB: OHCI: Properly handle ohci-platform suspend

Suspend scenario in case of ohci-platform glue was not
properly handled as it was not suspending generic part
of ohci controller.Alan Stern suggested, properly handle
ohci-platform suspend scenario.

Calling explicitly the ohci_suspend() routine in
ohci_platform_suspend() will ensure proper handling of
suspend scenario.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ohci-platform.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/host/ohci-platform.c b/drivers/usb/host/ohci-platform.c
index a4c6410f0ed4..f351ff5b171f 100644
--- a/drivers/usb/host/ohci-platform.c
+++ b/drivers/usb/host/ohci-platform.c
@@ -139,14 +139,21 @@ static int ohci_platform_remove(struct platform_device *dev)
 
 static int ohci_platform_suspend(struct device *dev)
 {
-	struct usb_ohci_pdata *pdata = dev_get_platdata(dev);
+	struct usb_hcd *hcd = dev_get_drvdata(dev);
+	struct usb_ohci_pdata *pdata = dev->platform_data;
 	struct platform_device *pdev =
 		container_of(dev, struct platform_device, dev);
+	bool do_wakeup = device_may_wakeup(dev);
+	int ret;
+
+	ret = ohci_suspend(hcd, do_wakeup);
+	if (ret)
+		return ret;
 
 	if (pdata->power_suspend)
 		pdata->power_suspend(pdev);
 
-	return 0;
+	return ret;
 }
 
 static int ohci_platform_resume(struct device *dev)
-- 
cgit 


From 4ceaa893be62921667bd30419e82bd74545cbc82 Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Fri, 4 Oct 2013 09:58:15 +0530
Subject: USB: OHCI: Properly handle ohci-pxa27x suspend

Suspend scenario in case of ohci-pxa27x glue was not
properly handled as it was not suspending generic part
of ohci controller.  Alan Stern suggested, properly
handle ohci-pxa27x suspend scenario.

Calling explicitly the ohci_suspend() routine in
ohci_hcd_pxa27x_drv_suspend() will ensure proper
handling of suspend scenario.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ohci-pxa27x.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index c1b1fa3047be..deea5d1d6394 100644
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -509,13 +509,20 @@ static int ohci_hcd_pxa27x_drv_suspend(struct device *dev)
 	struct usb_hcd *hcd = dev_get_drvdata(dev);
 	struct pxa27x_ohci *pxa_ohci = to_pxa27x_ohci(hcd);
 	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+	bool do_wakeup = device_may_wakeup(dev);
+	int ret;
+
 
 	if (time_before(jiffies, ohci->next_statechange))
 		msleep(5);
 	ohci->next_statechange = jiffies;
 
+	ret = ohci_suspend(hcd, do_wakeup);
+	if (ret)
+		return ret;
+
 	pxa27x_stop_hc(pxa_ohci, dev);
-	return 0;
+	return ret;
 }
 
 static int ohci_hcd_pxa27x_drv_resume(struct device *dev)
-- 
cgit 


From f3c60599d6e19351bd1a39d1c5c016c7aa5f4438 Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Fri, 4 Oct 2013 09:58:16 +0530
Subject: USB: OHCI: Properly handle ohci-sm501 suspend

Suspend scenario in case of ohci-sm501 glue was not
properly handled as it was not suspending generic part
of ohci controller.  Alan Stern suggested, properly
handle ohci-sm501 suspend scenario.

Calling explicitly the ohci_suspend() routine in
ohci_sm501_suspend() will ensure proper handling of suspend
scenario.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ohci-sm501.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/host/ohci-sm501.c b/drivers/usb/host/ohci-sm501.c
index d479d5ddab88..2a5de5fecd8f 100644
--- a/drivers/usb/host/ohci-sm501.c
+++ b/drivers/usb/host/ohci-sm501.c
@@ -216,14 +216,21 @@ static int ohci_hcd_sm501_drv_remove(struct platform_device *pdev)
 static int ohci_sm501_suspend(struct platform_device *pdev, pm_message_t msg)
 {
 	struct device *dev = &pdev->dev;
-	struct ohci_hcd	*ohci = hcd_to_ohci(platform_get_drvdata(pdev));
+	struct usb_hcd  *hcd = platform_get_drvdata(pdev);
+	struct ohci_hcd	*ohci = hcd_to_ohci(hcd);
+	bool do_wakeup = device_may_wakeup(dev);
+	int ret;
 
 	if (time_before(jiffies, ohci->next_statechange))
 		msleep(5);
 	ohci->next_statechange = jiffies;
 
+	ret = ohci_suspend(hcd, do_wakeup);
+	if (ret)
+		return ret;
+
 	sm501_unit_power(dev->parent, SM501_GATE_USB_HOST, 0);
-	return 0;
+	return ret;
 }
 
 static int ohci_sm501_resume(struct platform_device *pdev)
-- 
cgit 


From 36a8758736238c9354f46b39ca506e9acabe82d0 Mon Sep 17 00:00:00 2001
From: Manjunath Goudar <manjunath.goudar@linaro.org>
Date: Fri, 4 Oct 2013 09:58:17 +0530
Subject: USB: OHCI: Properly handle ohci-spear suspend

Suspend scenario in case of ohci-spear glue was not
properly handled as it was not suspending generic part
of ohci controller.  Alan Stern suggested, properly handle
ohci-spear suspend scenario.

Calling explicitly the ohci_suspend() routine in
spear_ohci_hcd_drv_suspend() will ensure proper
handling of suspend scenario.

Signed-off-by: Manjunath Goudar <manjunath.goudar@linaro.org>
Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ohci-spear.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c
index 31ff3fc4e26f..41148f8895a4 100644
--- a/drivers/usb/host/ohci-spear.c
+++ b/drivers/usb/host/ohci-spear.c
@@ -130,20 +130,26 @@ static int spear_ohci_hcd_drv_remove(struct platform_device *pdev)
 }
 
 #if defined(CONFIG_PM)
-static int spear_ohci_hcd_drv_suspend(struct platform_device *dev,
+static int spear_ohci_hcd_drv_suspend(struct platform_device *pdev,
 		pm_message_t message)
 {
-	struct usb_hcd *hcd = platform_get_drvdata(dev);
+	struct usb_hcd *hcd = platform_get_drvdata(pdev);
 	struct ohci_hcd	*ohci = hcd_to_ohci(hcd);
 	struct spear_ohci *sohci_p = to_spear_ohci(hcd);
+	bool do_wakeup = device_may_wakeup(&pdev->dev);
+	int ret;
 
 	if (time_before(jiffies, ohci->next_statechange))
 		msleep(5);
 	ohci->next_statechange = jiffies;
 
+	ret = ohci_suspend(hcd, do_wakeup);
+	if (ret)
+		return ret;
+
 	clk_disable_unprepare(sohci_p->clk);
 
-	return 0;
+	return ret;
 }
 
 static int spear_ohci_hcd_drv_resume(struct platform_device *dev)
-- 
cgit 


From f1125f81feca956288ef4ae4fcf47961865ab2e2 Mon Sep 17 00:00:00 2001
From: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Date: Fri, 4 Oct 2013 15:14:34 -0700
Subject: USB/host: Use existing macros instead of hard-coded values in
 uhci-debug.c

Now that UHCI IO registers have been defined in uhci-hcd.h, use them.

Reviewed-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/uhci-debug.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/host/uhci-debug.c b/drivers/usb/host/uhci-debug.c
index 455737546525..8e239cdd95d5 100644
--- a/drivers/usb/host/uhci-debug.c
+++ b/drivers/usb/host/uhci-debug.c
@@ -310,14 +310,14 @@ static int uhci_show_status(struct uhci_hcd *uhci, char *buf, int len)
 	unsigned short portsc1, portsc2;
 
 
-	usbcmd    = uhci_readw(uhci, 0);
-	usbstat   = uhci_readw(uhci, 2);
-	usbint    = uhci_readw(uhci, 4);
-	usbfrnum  = uhci_readw(uhci, 6);
-	flbaseadd = uhci_readl(uhci, 8);
-	sof       = uhci_readb(uhci, 12);
-	portsc1   = uhci_readw(uhci, 16);
-	portsc2   = uhci_readw(uhci, 18);
+	usbcmd    = uhci_readw(uhci, USBCMD);
+	usbstat   = uhci_readw(uhci, USBSTS);
+	usbint    = uhci_readw(uhci, USBINTR);
+	usbfrnum  = uhci_readw(uhci, USBFRNUM);
+	flbaseadd = uhci_readl(uhci, USBFLBASEADD);
+	sof       = uhci_readb(uhci, USBSOF);
+	portsc1   = uhci_readw(uhci, USBPORTSC1);
+	portsc2   = uhci_readw(uhci, USBPORTSC2);
 
 	out += sprintf(out, "  usbcmd    =     %04x   %s%s%s%s%s%s%s%s\n",
 		usbcmd,
-- 
cgit 


From 842c19600728dc2561f06553e442031fc68c1882 Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Sat, 5 Oct 2013 18:02:06 +0200
Subject: drivers: usb: core: hcd: moved asterix to variable

instead of type

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 9795a21bc612..a063e48a7fe5 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -2824,7 +2824,7 @@ void usb_remove_hcd(struct usb_hcd *hcd)
 EXPORT_SYMBOL_GPL(usb_remove_hcd);
 
 void
-usb_hcd_platform_shutdown(struct platform_device* dev)
+usb_hcd_platform_shutdown(struct platform_device *dev)
 {
 	struct usb_hcd *hcd = platform_get_drvdata(dev);
 
-- 
cgit 


From 14557359cad5d18ae18f8e9b01639022557ff71b Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Sat, 5 Oct 2013 18:02:07 +0200
Subject: drivers: usb: core: hcd: Whitespace fixes

including
- spaces to tabs
- removing spaces before array indexing (foo [] to foo[])
- adding spaces around unary operator (foo? 1 : 0 to foo ? 1 : 0)
- removed trailing whitespace

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hcd.c | 56 +++++++++++++++++++++++++-------------------------
 1 file changed, 28 insertions(+), 28 deletions(-)

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index a063e48a7fe5..138ed82a225a 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -6,7 +6,7 @@
  * (C) Copyright Deti Fliegl 1999
  * (C) Copyright Randy Dunlap 2000
  * (C) Copyright David Brownell 2000-2002
- * 
+ *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the
  * Free Software Foundation; either version 2 of the License, or (at your
@@ -93,7 +93,7 @@ EXPORT_SYMBOL_GPL (usb_bus_list);
 /* used when allocating bus numbers */
 #define USB_MAXBUS		64
 struct usb_busmap {
-	unsigned long busmap [USB_MAXBUS / (8*sizeof (unsigned long))];
+	unsigned long busmap[USB_MAXBUS / (8*sizeof (unsigned long))];
 };
 static struct usb_busmap busmap;
 
@@ -171,7 +171,7 @@ static const u8 usb25_rh_dev_descriptor[18] = {
 };
 
 /* usb 2.0 root hub device descriptor */
-static const u8 usb2_rh_dev_descriptor [18] = {
+static const u8 usb2_rh_dev_descriptor[18] = {
 	0x12,       /*  __u8  bLength; */
 	0x01,       /*  __u8  bDescriptorType; Device */
 	0x00, 0x02, /*  __le16 bcdUSB; v2.0 */
@@ -194,7 +194,7 @@ static const u8 usb2_rh_dev_descriptor [18] = {
 /* no usb 2.0 root hub "device qualifier" descriptor: one speed only */
 
 /* usb 1.1 root hub device descriptor */
-static const u8 usb11_rh_dev_descriptor [18] = {
+static const u8 usb11_rh_dev_descriptor[18] = {
 	0x12,       /*  __u8  bLength; */
 	0x01,       /*  __u8  bDescriptorType; Device */
 	0x10, 0x01, /*  __le16 bcdUSB; v1.1 */
@@ -219,7 +219,7 @@ static const u8 usb11_rh_dev_descriptor [18] = {
 
 /* Configuration descriptors for our root hubs */
 
-static const u8 fs_rh_config_descriptor [] = {
+static const u8 fs_rh_config_descriptor[] = {
 
 	/* one configuration */
 	0x09,       /*  __u8  bLength; */
@@ -228,13 +228,13 @@ static const u8 fs_rh_config_descriptor [] = {
 	0x01,       /*  __u8  bNumInterfaces; (1) */
 	0x01,       /*  __u8  bConfigurationValue; */
 	0x00,       /*  __u8  iConfiguration; */
-	0xc0,       /*  __u8  bmAttributes; 
+	0xc0,       /*  __u8  bmAttributes;
 				 Bit 7: must be set,
 				     6: Self-powered,
 				     5: Remote wakeup,
 				     4..0: resvd */
 	0x00,       /*  __u8  MaxPower; */
-      
+
 	/* USB 1.1:
 	 * USB 2.0, single TT organization (mandatory):
 	 *	one interface, protocol 0
@@ -256,17 +256,17 @@ static const u8 fs_rh_config_descriptor [] = {
 	0x00,       /*  __u8  if_bInterfaceSubClass; */
 	0x00,       /*  __u8  if_bInterfaceProtocol; [usb1.1 or single tt] */
 	0x00,       /*  __u8  if_iInterface; */
-     
+
 	/* one endpoint (status change endpoint) */
 	0x07,       /*  __u8  ep_bLength; */
 	0x05,       /*  __u8  ep_bDescriptorType; Endpoint */
 	0x81,       /*  __u8  ep_bEndpointAddress; IN Endpoint 1 */
- 	0x03,       /*  __u8  ep_bmAttributes; Interrupt */
- 	0x02, 0x00, /*  __le16 ep_wMaxPacketSize; 1 + (MAX_ROOT_PORTS / 8) */
+	0x03,       /*  __u8  ep_bmAttributes; Interrupt */
+	0x02, 0x00, /*  __le16 ep_wMaxPacketSize; 1 + (MAX_ROOT_PORTS / 8) */
 	0xff        /*  __u8  ep_bInterval; (255ms -- usb 2.0 spec) */
 };
 
-static const u8 hs_rh_config_descriptor [] = {
+static const u8 hs_rh_config_descriptor[] = {
 
 	/* one configuration */
 	0x09,       /*  __u8  bLength; */
@@ -275,13 +275,13 @@ static const u8 hs_rh_config_descriptor [] = {
 	0x01,       /*  __u8  bNumInterfaces; (1) */
 	0x01,       /*  __u8  bConfigurationValue; */
 	0x00,       /*  __u8  iConfiguration; */
-	0xc0,       /*  __u8  bmAttributes; 
+	0xc0,       /*  __u8  bmAttributes;
 				 Bit 7: must be set,
 				     6: Self-powered,
 				     5: Remote wakeup,
 				     4..0: resvd */
 	0x00,       /*  __u8  MaxPower; */
-      
+
 	/* USB 1.1:
 	 * USB 2.0, single TT organization (mandatory):
 	 *	one interface, protocol 0
@@ -303,12 +303,12 @@ static const u8 hs_rh_config_descriptor [] = {
 	0x00,       /*  __u8  if_bInterfaceSubClass; */
 	0x00,       /*  __u8  if_bInterfaceProtocol; [usb1.1 or single tt] */
 	0x00,       /*  __u8  if_iInterface; */
-     
+
 	/* one endpoint (status change endpoint) */
 	0x07,       /*  __u8  ep_bLength; */
 	0x05,       /*  __u8  ep_bDescriptorType; Endpoint */
 	0x81,       /*  __u8  ep_bEndpointAddress; IN Endpoint 1 */
- 	0x03,       /*  __u8  ep_bmAttributes; Interrupt */
+	0x03,       /*  __u8  ep_bmAttributes; Interrupt */
 		    /* __le16 ep_wMaxPacketSize; 1 + (MAX_ROOT_PORTS / 8)
 		     * see hub.c:hub_configure() for details. */
 	(USB_MAXCHILDREN + 1 + 7) / 8, 0x00,
@@ -464,7 +464,7 @@ rh_string(int id, struct usb_hcd const *hcd, u8 *data, unsigned len)
 static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
 {
 	struct usb_ctrlrequest *cmd;
- 	u16		typeReq, wValue, wIndex, wLength;
+	u16		typeReq, wValue, wIndex, wLength;
 	u8		*ubuf = urb->transfer_buffer;
 	unsigned	len = 0;
 	int		status;
@@ -526,10 +526,10 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
 	 */
 
 	case DeviceRequest | USB_REQ_GET_STATUS:
-		tbuf [0] = (device_may_wakeup(&hcd->self.root_hub->dev)
+		tbuf[0] = (device_may_wakeup(&hcd->self.root_hub->dev)
 					<< USB_DEVICE_REMOTE_WAKEUP)
 				| (1 << USB_DEVICE_SELF_POWERED);
-		tbuf [1] = 0;
+		tbuf[1] = 0;
 		len = 2;
 		break;
 	case DeviceOutRequest | USB_REQ_CLEAR_FEATURE:
@@ -546,7 +546,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
 			goto error;
 		break;
 	case DeviceRequest | USB_REQ_GET_CONFIGURATION:
-		tbuf [0] = 1;
+		tbuf[0] = 1;
 		len = 1;
 			/* FALLTHROUGH */
 	case DeviceOutRequest | USB_REQ_SET_CONFIGURATION:
@@ -609,7 +609,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
 		}
 		break;
 	case DeviceRequest | USB_REQ_GET_INTERFACE:
-		tbuf [0] = 0;
+		tbuf[0] = 0;
 		len = 1;
 			/* FALLTHROUGH */
 	case DeviceOutRequest | USB_REQ_SET_INTERFACE:
@@ -626,8 +626,8 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
 
 	case EndpointRequest | USB_REQ_GET_STATUS:
 		// ENDPOINT_HALT flag
-		tbuf [0] = 0;
-		tbuf [1] = 0;
+		tbuf[0] = 0;
+		tbuf[1] = 0;
 		len = 2;
 			/* FALLTHROUGH */
 	case EndpointOutRequest | USB_REQ_CLEAR_FEATURE:
@@ -877,7 +877,7 @@ static ssize_t authorized_default_store(struct device *dev,
 	usb_hcd = bus_to_hcd(usb_bus);
 	result = sscanf(buf, "%u\n", &val);
 	if (result == 1) {
-		usb_hcd->authorized_default = val? 1 : 0;
+		usb_hcd->authorized_default = val ? 1 : 0;
 		result = size;
 	}
 	else
@@ -1815,7 +1815,7 @@ rescan:
 				 case USB_ENDPOINT_XFER_INT:
 					s = "-intr"; break;
 				 default:
-			 		s = "-iso"; break;
+					s = "-iso"; break;
 				};
 				s;
 			}));
@@ -2251,7 +2251,7 @@ static void hcd_resume_work(struct work_struct *work)
 }
 
 /**
- * usb_hcd_resume_root_hub - called by HCD to resume its root hub 
+ * usb_hcd_resume_root_hub - called by HCD to resume its root hub
  * @hcd: host controller for this root hub
  *
  * The USB host controller calls this function when its root hub is
@@ -2606,7 +2606,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
 
 	/* Keep old behaviour if authorized_default is not in [0, 1]. */
 	if (authorized_default < 0 || authorized_default > 1)
-		hcd->authorized_default = hcd->wireless? 0 : 1;
+		hcd->authorized_default = hcd->wireless ? 0 : 1;
 	else
 		hcd->authorized_default = authorized_default;
 	set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
@@ -2749,7 +2749,7 @@ err_allocate_root_hub:
 err_register_bus:
 	hcd_buffer_destroy(hcd);
 	return retval;
-} 
+}
 EXPORT_SYMBOL_GPL(usb_add_hcd);
 
 /**
@@ -2846,7 +2846,7 @@ struct usb_mon_operations *mon_ops;
  * Notice that the code is minimally error-proof. Because usbmon needs
  * symbols from usbcore, usbcore gets referenced and cannot be unloaded first.
  */
- 
+
 int usb_mon_register (struct usb_mon_operations *ops)
 {
 
-- 
cgit 


From 048cb21c37a917b4872de9cd004cbf017a65b362 Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Sat, 5 Oct 2013 18:02:08 +0200
Subject: drivers: usb: core: hcd: replaced C99 // comments

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hcd.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 138ed82a225a..b98f3d910c89 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -428,7 +428,7 @@ rh_string(int id, struct usb_hcd const *hcd, u8 *data, unsigned len)
 	char const *s;
 	static char const langids[4] = {4, USB_DT_STRING, 0x09, 0x04};
 
-	// language ids
+	/* language ids */
 	switch (id) {
 	case 0:
 		/* Array of LANGID codes (0x0409 is MSFT-speak for "en-us") */
@@ -615,7 +615,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
 	case DeviceOutRequest | USB_REQ_SET_INTERFACE:
 		break;
 	case DeviceOutRequest | USB_REQ_SET_ADDRESS:
-		// wValue == urb->dev->devaddr
+		/* wValue == urb->dev->devaddr */
 		dev_dbg (hcd->self.controller, "root hub device address %d\n",
 			wValue);
 		break;
@@ -625,7 +625,7 @@ static int rh_call_control (struct usb_hcd *hcd, struct urb *urb)
 	/* ENDPOINT REQUESTS */
 
 	case EndpointRequest | USB_REQ_GET_STATUS:
-		// ENDPOINT_HALT flag
+		/* ENDPOINT_HALT flag */
 		tbuf[0] = 0;
 		tbuf[1] = 0;
 		len = 2;
@@ -683,7 +683,7 @@ error:
 		if (urb->transfer_buffer_length < len)
 			len = urb->transfer_buffer_length;
 		urb->actual_length = len;
-		// always USB_DIR_IN, toward host
+		/* always USB_DIR_IN, toward host */
 		memcpy (ubuf, bufp, len);
 
 		/* report whether RH hardware supports remote wakeup */
@@ -1135,7 +1135,7 @@ long usb_calc_bus_time (int speed, int is_input, int isoc, int bytecount)
 			return (9107L + BW_HOST_DELAY + tmp);
 		}
 	case USB_SPEED_HIGH:	/* ISOC or INTR */
-		// FIXME adjust for input vs output
+		/* FIXME adjust for input vs output */
 		if (isoc)
 			tmp = HS_NSECS_ISO (bytecount);
 		else
-- 
cgit 


From 070104966cde138627fea8257ef278f7a0d1379b Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Sat, 5 Oct 2013 18:02:09 +0200
Subject: drivers: usb: core: hcd: removed braces for return statements

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hcd.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index b98f3d910c89..2a538ce08f9c 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1121,18 +1121,18 @@ long usb_calc_bus_time (int speed, int is_input, int isoc, int bytecount)
 	case USB_SPEED_LOW: 	/* INTR only */
 		if (is_input) {
 			tmp = (67667L * (31L + 10L * BitTime (bytecount))) / 1000L;
-			return (64060L + (2 * BW_HUB_LS_SETUP) + BW_HOST_DELAY + tmp);
+			return 64060L + (2 * BW_HUB_LS_SETUP) + BW_HOST_DELAY + tmp;
 		} else {
 			tmp = (66700L * (31L + 10L * BitTime (bytecount))) / 1000L;
-			return (64107L + (2 * BW_HUB_LS_SETUP) + BW_HOST_DELAY + tmp);
+			return 64107L + (2 * BW_HUB_LS_SETUP) + BW_HOST_DELAY + tmp;
 		}
 	case USB_SPEED_FULL:	/* ISOC or INTR */
 		if (isoc) {
 			tmp = (8354L * (31L + 10L * BitTime (bytecount))) / 1000L;
-			return (((is_input) ? 7268L : 6265L) + BW_HOST_DELAY + tmp);
+			return ((is_input) ? 7268L : 6265L) + BW_HOST_DELAY + tmp;
 		} else {
 			tmp = (8354L * (31L + 10L * BitTime (bytecount))) / 1000L;
-			return (9107L + BW_HOST_DELAY + tmp);
+			return 9107L + BW_HOST_DELAY + tmp;
 		}
 	case USB_SPEED_HIGH:	/* ISOC or INTR */
 		/* FIXME adjust for input vs output */
-- 
cgit 


From d1ddb0a6bb665dce10314bb5b9960e197e814820 Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Sat, 5 Oct 2013 18:02:10 +0200
Subject: drivers: usb: core: hcd: if-else-braces fixed

Put else keyword on same line as closing brace from if statement, added
{ } braces as the styleguide says.

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hcd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 2a538ce08f9c..460bb59cb655 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -879,9 +879,9 @@ static ssize_t authorized_default_store(struct device *dev,
 	if (result == 1) {
 		usb_hcd->authorized_default = val ? 1 : 0;
 		result = size;
-	}
-	else
+	} else {
 		result = -EINVAL;
+	}
 	return result;
 }
 static DEVICE_ATTR_RW(authorized_default);
-- 
cgit 


From af190494f9b2e1fb6e1c039e9626c3c334717da1 Mon Sep 17 00:00:00 2001
From: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Date: Thu, 3 Oct 2013 18:06:23 -0700
Subject: misc: mic: Enable OSPM suspend and resume support.

This patch enables support for OSPM suspend and resume in the MIC
driver. During a host suspend event, the driver performs an
orderly shutdown of the cards if they are online. Upon resume, any
cards that were previously online before suspend are rebooted.
The driver performs an orderly shutdown of the card primarily to
ensure that applications in the card are terminated and mounted
devices are safely un-mounted before the card is powered down in
the event of an OSPM suspend.

The driver makes use of the MIC daemon to accomplish OSPM suspend
and resume. The driver registers a PM notifier per MIC device.
The devices get notified synchronously during PM_SUSPEND_PREPARE and
PM_POST_SUSPEND phases.

During the PM_SUSPEND_PREPARE phase, the driver performs one of the
following three tasks.
1) If the card is 'offline', the driver sets the card to a
   'suspended' state and returns.
2) If the card is 'online', the driver initiates card shutdown by
   setting the card state to suspending. This notifies the MIC
   daemon which invokes shutdown and sets card state to 'suspended'.
   The driver returns after the shutdown is complete.
3) If the card is already being shutdown, possibly by a host user
   space application, the driver sets the card state to 'suspended'
   and returns after the shutdown is complete.

During the PM_POST_SUSPEND phase, the driver simply notifies the
daemon and returns. The daemon boots those cards that were previously
online during the suspend phase.

Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
Signed-off-by: Harshavardhan R Kharche <harshavardhan.r.kharche@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/ABI/testing/sysfs-class-mic.txt |  60 +++++++------
 Documentation/mic/mic_overview.txt            |   4 +-
 Documentation/mic/mpssd/mpssd.c               |  27 +++++-
 Documentation/mic/mpssd/mpssd.h               |   1 +
 drivers/misc/mic/host/mic_boot.c              | 120 +++++++++++++++++++++++++-
 drivers/misc/mic/host/mic_device.h            |   8 ++
 drivers/misc/mic/host/mic_main.c              |  63 +++++++++++++-
 drivers/misc/mic/host/mic_sysfs.c             |   7 ++
 include/uapi/linux/mic_common.h               |   2 +
 9 files changed, 257 insertions(+), 35 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-class-mic.txt b/Documentation/ABI/testing/sysfs-class-mic.txt
index 82cdad3b614a..13f48afc534f 100644
--- a/Documentation/ABI/testing/sysfs-class-mic.txt
+++ b/Documentation/ABI/testing/sysfs-class-mic.txt
@@ -1,6 +1,6 @@
 What:		/sys/class/mic/
-Date:		August 2013
-KernelVersion:	3.11
+Date:		October 2013
+KernelVersion:	3.13
 Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
 Description:
 		The mic class directory belongs to Intel MIC devices and
@@ -9,8 +9,8 @@ Description:
 		Integrated Core (MIC) architecture that runs a Linux OS.
 
 What:		/sys/class/mic/mic(x)
-Date:		August 2013
-KernelVersion:	3.11
+Date:		October 2013
+KernelVersion:	3.13
 Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
 Description:
 		The directories /sys/class/mic/mic0, /sys/class/mic/mic1 etc.,
@@ -18,33 +18,41 @@ Description:
 		information specific to that MIC device.
 
 What:		/sys/class/mic/mic(x)/family
-Date:		August 2013
-KernelVersion:	3.11
+Date:		October 2013
+KernelVersion:	3.13
 Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
 Description:
 		Provides information about the Coprocessor family for an Intel
 		MIC device. For example - "x100"
 
 What:		/sys/class/mic/mic(x)/stepping
-Date:		August 2013
-KernelVersion:	3.11
+Date:		October 2013
+KernelVersion:	3.13
 Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
 Description:
 		Provides information about the silicon stepping for an Intel
 		MIC device. For example - "A0" or "B0"
 
 What:		/sys/class/mic/mic(x)/state
-Date:		August 2013
-KernelVersion:	3.11
+Date:		October 2013
+KernelVersion:	3.13
 Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
 Description:
 		When read, this entry provides the current state of an Intel
 		MIC device in the context of the card OS. Possible values that
 		will be read are:
-		"offline" - The MIC device is ready to boot the card OS.
+		"offline" - The MIC device is ready to boot the card OS. On
+		reading this entry after an OSPM resume, a "boot" has to be
+		written to this entry if the card was previously shutdown
+		during OSPM suspend.
 		"online" - The MIC device has initiated booting a card OS.
 		"shutting_down" - The card OS is shutting down.
 		"reset_failed" - The MIC device has failed to reset.
+		"suspending" - The MIC device is currently being prepared for
+		suspend. On reading this entry, a "suspend" has to be written
+		to the state sysfs entry to ensure the card is shutdown during
+		OSPM suspend.
+		"suspended" - The MIC device has been suspended.
 
 		When written, this sysfs entry triggers different state change
 		operations depending upon the current state of the card OS.
@@ -54,10 +62,12 @@ Description:
 			sysfs entries.
 		"reset" - Initiates device reset.
 		"shutdown" - Initiates card OS shutdown.
+		"suspend" - Initiates card OS shutdown and also marks the card
+		as suspended.
 
 What:		/sys/class/mic/mic(x)/shutdown_status
-Date:		August 2013
-KernelVersion:	3.11
+Date:		October 2013
+KernelVersion:	3.13
 Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
 Description:
 		An Intel MIC device runs a Linux OS during its operation. This
@@ -72,8 +82,8 @@ Description:
 		"restart" - Shutdown because of a restart command.
 
 What:		/sys/class/mic/mic(x)/cmdline
-Date:		August 2013
-KernelVersion:	3.11
+Date:		October 2013
+KernelVersion:	3.13
 Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
 Description:
 		An Intel MIC device runs a Linux OS during its operation. Before
@@ -88,8 +98,8 @@ Description:
 		line back to this entry.
 
 What:		/sys/class/mic/mic(x)/firmware
-Date:		August 2013
-KernelVersion:	3.11
+Date:		October 2013
+KernelVersion:	3.13
 Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
 Description:
 		When read, this sysfs entry provides the path name under
@@ -98,8 +108,8 @@ Description:
 		firmware image location under /lib/firmware/.
 
 What:		/sys/class/mic/mic(x)/ramdisk
-Date:		August 2013
-KernelVersion:	3.11
+Date:		October 2013
+KernelVersion:	3.13
 Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
 Description:
 		When read, this sysfs entry provides the path name under
@@ -108,8 +118,8 @@ Description:
 		the ramdisk image location under /lib/firmware/.
 
 What:		/sys/class/mic/mic(x)/bootmode
-Date:		August 2013
-KernelVersion:	3.11
+Date:		October 2013
+KernelVersion:	3.13
 Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
 Description:
 		When read, this sysfs entry provides the current bootmode for
@@ -119,8 +129,8 @@ Description:
 		b) elf - Boot an elf image for flash updates.
 
 What:		/sys/class/mic/mic(x)/log_buf_addr
-Date:		August 2013
-KernelVersion:	3.11
+Date:		October 2013
+KernelVersion:	3.13
 Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
 Description:
 		An Intel MIC device runs a Linux OS during its operation. For
@@ -133,8 +143,8 @@ Description:
 		file of the card OS.
 
 What:		/sys/class/mic/mic(x)/log_buf_len
-Date:		August 2013
-KernelVersion:	3.11
+Date:		October 2013
+KernelVersion:	3.13
 Contact:	Sudeep Dutt <sudeep.dutt@intel.com>
 Description:
 		An Intel MIC device runs a Linux OS during its operation. For
diff --git a/Documentation/mic/mic_overview.txt b/Documentation/mic/mic_overview.txt
index c4424ed1b746..b41929224804 100644
--- a/Documentation/mic/mic_overview.txt
+++ b/Documentation/mic/mic_overview.txt
@@ -4,7 +4,9 @@ that runs a Linux OS. It is a PCIe endpoint in a platform and therefore
 implements the three required standard address spaces i.e. configuration,
 memory and I/O. The host OS loads a device driver as is typical for
 PCIe devices. The card itself runs a bootstrap after reset that
-transfers control to the card OS downloaded from the host driver.
+transfers control to the card OS downloaded from the host driver. The
+host driver supports OSPM suspend and resume operations. It shuts down
+the card during suspend and reboots the card OS during resume.
 The card OS as shipped by Intel is a Linux kernel with modifications
 for the X100 devices.
 
diff --git a/Documentation/mic/mpssd/mpssd.c b/Documentation/mic/mpssd/mpssd.c
index 82c6bc2e3cb6..0c980ad40b17 100644
--- a/Documentation/mic/mpssd/mpssd.c
+++ b/Documentation/mic/mpssd/mpssd.c
@@ -1295,7 +1295,13 @@ reset(struct mic_info *mic)
 			goto retry;
 		mpsslog("%s: %s %d state %s\n",
 			mic->name, __func__, __LINE__, state);
-		if ((!strcmp(state, "offline"))) {
+
+		/*
+		 * If the shutdown was initiated by OSPM, the state stays
+		 * in "suspended" which is also a valid condition for reset.
+		 */
+		if ((!strcmp(state, "offline")) ||
+		    (!strcmp(state, "suspended"))) {
 			free(state);
 			break;
 		}
@@ -1334,6 +1340,10 @@ static int get_mic_state(struct mic_info *mic, char *state)
 		return MIC_SHUTTING_DOWN;
 	if (!strcmp(state, "reset_failed"))
 		return MIC_RESET_FAILED;
+	if (!strcmp(state, "suspending"))
+		return MIC_SUSPENDING;
+	if (!strcmp(state, "suspended"))
+		return MIC_SUSPENDED;
 	mpsslog("%s: BUG invalid state %s\n", mic->name, state);
 	/* Invalid state */
 	assert(0);
@@ -1418,6 +1428,17 @@ retry:
 		case MIC_SHUTTING_DOWN:
 			mic_handle_shutdown(mic);
 			goto close_error;
+		case MIC_SUSPENDING:
+			mic->boot_on_resume = 1;
+			setsysfs(mic->name, "state", "suspend");
+			mic_handle_shutdown(mic);
+			goto close_error;
+		case MIC_OFFLINE:
+			if (mic->boot_on_resume) {
+				setsysfs(mic->name, "state", "boot");
+				mic->boot_on_resume = 0;
+			}
+			break;
 		default:
 			break;
 		}
@@ -1621,11 +1642,9 @@ init_mic_list(void)
 
 	while ((file = readdir(dp)) != NULL) {
 		if (!strncmp(file->d_name, "mic", 3)) {
-			mic->next = malloc(sizeof(struct mic_info));
+			mic->next = calloc(1, sizeof(struct mic_info));
 			if (mic->next) {
 				mic = mic->next;
-				mic->next = NULL;
-				memset(mic, 0, sizeof(struct mic_info));
 				mic->id = atoi(&file->d_name[3]);
 				mic->name = malloc(strlen(file->d_name) + 16);
 				if (mic->name)
diff --git a/Documentation/mic/mpssd/mpssd.h b/Documentation/mic/mpssd/mpssd.h
index ccd589ff9146..f5f18b15d9a0 100644
--- a/Documentation/mic/mpssd/mpssd.h
+++ b/Documentation/mic/mpssd/mpssd.h
@@ -91,6 +91,7 @@ struct mic_info {
 	struct mic_net_info	mic_net;
 	struct mic_virtblk_info	mic_virtblk;
 	int		restart;
+	int		boot_on_resume;
 	struct mic_info *next;
 };
 
diff --git a/drivers/misc/mic/host/mic_boot.c b/drivers/misc/mic/host/mic_boot.c
index 60c54d5c43c2..d56b8bf4eaf6 100644
--- a/drivers/misc/mic/host/mic_boot.c
+++ b/drivers/misc/mic/host/mic_boot.c
@@ -37,12 +37,13 @@ static void mic_reset(struct mic_device *mdev)
 
 #define MIC_RESET_TO (45)
 
+	INIT_COMPLETION(mdev->reset_wait);
 	mdev->ops->reset_fw_ready(mdev);
 	mdev->ops->reset(mdev);
 
 	for (i = 0; i < MIC_RESET_TO; i++) {
 		if (mdev->ops->is_fw_ready(mdev))
-			return;
+			goto done;
 		/*
 		 * Resets typically take 10s of seconds to complete.
 		 * Since an MMIO read is required to check if the
@@ -51,6 +52,8 @@ static void mic_reset(struct mic_device *mdev)
 		msleep(1000);
 	}
 	mic_set_state(mdev, MIC_RESET_FAILED);
+done:
+	complete_all(&mdev->reset_wait);
 }
 
 /* Initialize the MIC bootparams */
@@ -123,7 +126,8 @@ void mic_stop(struct mic_device *mdev, bool force)
 		if (MIC_RESET_FAILED == mdev->state)
 			goto unlock;
 		mic_set_shutdown_status(mdev, MIC_NOP);
-		mic_set_state(mdev, MIC_OFFLINE);
+		if (MIC_SUSPENDED != mdev->state)
+			mic_set_state(mdev, MIC_OFFLINE);
 	}
 unlock:
 	mutex_unlock(&mdev->mic_mutex);
@@ -165,7 +169,14 @@ void mic_shutdown_work(struct work_struct *work)
 	mutex_lock(&mdev->mic_mutex);
 	mic_set_shutdown_status(mdev, bootparam->shutdown_status);
 	bootparam->shutdown_status = 0;
-	if (MIC_SHUTTING_DOWN != mdev->state)
+
+	/*
+	 * if state is MIC_SUSPENDED, OSPM suspend is in progress. We do not
+	 * change the state here so as to prevent users from booting the card
+	 * during and after the suspend operation.
+	 */
+	if (MIC_SHUTTING_DOWN != mdev->state &&
+	    MIC_SUSPENDED != mdev->state)
 		mic_set_state(mdev, MIC_SHUTTING_DOWN);
 	mutex_unlock(&mdev->mic_mutex);
 }
@@ -183,3 +194,106 @@ void mic_reset_trigger_work(struct work_struct *work)
 
 	mic_stop(mdev, false);
 }
+
+/**
+ * mic_complete_resume - Complete MIC Resume after an OSPM suspend/hibernate
+ * event.
+ * @mdev: pointer to mic_device instance
+ *
+ * RETURNS: None.
+ */
+void mic_complete_resume(struct mic_device *mdev)
+{
+	if (mdev->state != MIC_SUSPENDED) {
+		dev_warn(mdev->sdev->parent, "state %d should be %d\n",
+			 mdev->state, MIC_SUSPENDED);
+		return;
+	}
+
+	/* Make sure firmware is ready */
+	if (!mdev->ops->is_fw_ready(mdev))
+		mic_stop(mdev, true);
+
+	mutex_lock(&mdev->mic_mutex);
+	mic_set_state(mdev, MIC_OFFLINE);
+	mutex_unlock(&mdev->mic_mutex);
+}
+
+/**
+ * mic_prepare_suspend - Handle suspend notification for the MIC device.
+ * @mdev: pointer to mic_device instance
+ *
+ * RETURNS: None.
+ */
+void mic_prepare_suspend(struct mic_device *mdev)
+{
+	int rc;
+
+#define MIC_SUSPEND_TIMEOUT (60 * HZ)
+
+	mutex_lock(&mdev->mic_mutex);
+	switch (mdev->state) {
+	case MIC_OFFLINE:
+		/*
+		 * Card is already offline. Set state to MIC_SUSPENDED
+		 * to prevent users from booting the card.
+		 */
+		mic_set_state(mdev, MIC_SUSPENDED);
+		mutex_unlock(&mdev->mic_mutex);
+		break;
+	case MIC_ONLINE:
+		/*
+		 * Card is online. Set state to MIC_SUSPENDING and notify
+		 * MIC user space daemon which will issue card
+		 * shutdown and reset.
+		 */
+		mic_set_state(mdev, MIC_SUSPENDING);
+		mutex_unlock(&mdev->mic_mutex);
+		rc = wait_for_completion_timeout(&mdev->reset_wait,
+						MIC_SUSPEND_TIMEOUT);
+		/* Force reset the card if the shutdown completion timed out */
+		if (!rc) {
+			mutex_lock(&mdev->mic_mutex);
+			mic_set_state(mdev, MIC_SUSPENDED);
+			mutex_unlock(&mdev->mic_mutex);
+			mic_stop(mdev, true);
+		}
+		break;
+	case MIC_SHUTTING_DOWN:
+		/*
+		 * Card is shutting down. Set state to MIC_SUSPENDED
+		 * to prevent further boot of the card.
+		 */
+		mic_set_state(mdev, MIC_SUSPENDED);
+		mutex_unlock(&mdev->mic_mutex);
+		rc = wait_for_completion_timeout(&mdev->reset_wait,
+						MIC_SUSPEND_TIMEOUT);
+		/* Force reset the card if the shutdown completion timed out */
+		if (!rc)
+			mic_stop(mdev, true);
+		break;
+	default:
+		mutex_unlock(&mdev->mic_mutex);
+		break;
+	}
+}
+
+/**
+ * mic_suspend - Initiate MIC suspend. Suspend merely issues card shutdown.
+ * @mdev: pointer to mic_device instance
+ *
+ * RETURNS: None.
+ */
+void mic_suspend(struct mic_device *mdev)
+{
+	struct mic_bootparam *bootparam = mdev->dp;
+	s8 db = bootparam->h2c_shutdown_db;
+
+	mutex_lock(&mdev->mic_mutex);
+	if (MIC_SUSPENDING == mdev->state && db != -1) {
+		bootparam->shutdown_card = 1;
+		mdev->ops->send_intr(mdev, db);
+		mic_set_state(mdev, MIC_SUSPENDED);
+	}
+	mutex_unlock(&mdev->mic_mutex);
+}
diff --git a/drivers/misc/mic/host/mic_device.h b/drivers/misc/mic/host/mic_device.h
index dcba2a59e77f..3574cc375bb9 100644
--- a/drivers/misc/mic/host/mic_device.h
+++ b/drivers/misc/mic/host/mic_device.h
@@ -23,6 +23,7 @@
 
 #include <linux/cdev.h>
 #include <linux/idr.h>
+#include <linux/notifier.h>
 
 #include "mic_intr.h"
 
@@ -75,6 +76,7 @@ enum mic_stepping {
  * @state: MIC state.
  * @shutdown_status: MIC status reported by card for shutdown/crashes.
  * @state_sysfs: Sysfs dirent for notifying ring 3 about MIC state changes.
+ * @reset_wait: Waitqueue for sleeping while reset completes.
  * @log_buf_addr: Log buffer address for MIC.
  * @log_buf_len: Log buffer length address for MIC.
  * @dp: virtio device page
@@ -83,6 +85,7 @@ enum mic_stepping {
  * @shutdown_cookie: shutdown cookie.
  * @cdev: Character device for MIC.
  * @vdev_list: list of virtio devices.
+ * @pm_notifier: Handles PM notifications from the OS.
  */
 struct mic_device {
 	struct mic_mw mmio;
@@ -110,6 +113,7 @@ struct mic_device {
 	u8 state;
 	u8 shutdown_status;
 	struct sysfs_dirent *state_sysfs;
+	struct completion reset_wait;
 	void *log_buf_addr;
 	int *log_buf_len;
 	void *dp;
@@ -118,6 +122,7 @@ struct mic_device {
 	struct mic_irq *shutdown_cookie;
 	struct cdev cdev;
 	struct list_head vdev_list;
+	struct notifier_block pm_notifier;
 };
 
 /**
@@ -192,4 +197,7 @@ void mic_create_debug_dir(struct mic_device *dev);
 void mic_delete_debug_dir(struct mic_device *dev);
 void __init mic_init_debugfs(void);
 void mic_exit_debugfs(void);
+void mic_prepare_suspend(struct mic_device *mdev);
+void mic_complete_resume(struct mic_device *mdev);
+void mic_suspend(struct mic_device *mdev);
 #endif
diff --git a/drivers/misc/mic/host/mic_main.c b/drivers/misc/mic/host/mic_main.c
index ca06aa9b7114..b3520859abd3 100644
--- a/drivers/misc/mic/host/mic_main.c
+++ b/drivers/misc/mic/host/mic_main.c
@@ -26,6 +26,7 @@
 #include <linux/module.h>
 #include <linux/pci.h>
 #include <linux/poll.h>
+#include <linux/suspend.h>
 
 #include <linux/mic_common.h>
 #include "../common/mic_dev.h"
@@ -186,6 +187,43 @@ static enum mic_hw_family mic_get_family(struct pci_dev *pdev)
 	return family;
 }
 
+/**
+* mic_pm_notifier: Notifier callback function that handles
+* PM notifications.
+*
+* @notifier_block: The notifier structure.
+* @pm_event: The event for which the driver was notified.
+* @unused: Meaningless. Always NULL.
+*
+* returns NOTIFY_DONE
+*/
+static int mic_pm_notifier(struct notifier_block *notifier,
+		unsigned long pm_event, void *unused)
+{
+	struct mic_device *mdev = container_of(notifier,
+		struct mic_device, pm_notifier);
+
+	switch (pm_event) {
+	case PM_HIBERNATION_PREPARE:
+		/* Fall through */
+	case PM_SUSPEND_PREPARE:
+		mic_prepare_suspend(mdev);
+		break;
+	case PM_POST_HIBERNATION:
+		/* Fall through */
+	case PM_POST_SUSPEND:
+		/* Fall through */
+	case PM_POST_RESTORE:
+		mic_complete_resume(mdev);
+		break;
+	case PM_RESTORE_PREPARE:
+		break;
+	default:
+		break;
+	}
+	return NOTIFY_DONE;
+}
+
 /**
  * mic_device_init - Allocates and initializes the MIC device structure
  *
@@ -194,9 +232,11 @@ static enum mic_hw_family mic_get_family(struct pci_dev *pdev)
  *
  * returns none.
  */
-static void
+static int
 mic_device_init(struct mic_device *mdev, struct pci_dev *pdev)
 {
+	int rc;
+
 	mdev->family = mic_get_family(pdev);
 	mdev->stepping = pdev->revision;
 	mic_ops_init(mdev);
@@ -205,7 +245,20 @@ mic_device_init(struct mic_device *mdev, struct pci_dev *pdev)
 	mdev->irq_info.next_avail_src = 0;
 	INIT_WORK(&mdev->reset_trigger_work, mic_reset_trigger_work);
 	INIT_WORK(&mdev->shutdown_work, mic_shutdown_work);
+	init_completion(&mdev->reset_wait);
 	INIT_LIST_HEAD(&mdev->vdev_list);
+	mdev->pm_notifier.notifier_call = mic_pm_notifier;
+	rc = register_pm_notifier(&mdev->pm_notifier);
+	if (rc) {
+		dev_err(&pdev->dev, "register_pm_notifier failed rc %d\n",
+			rc);
+		goto register_pm_notifier_fail;
+	}
+	return 0;
+register_pm_notifier_fail:
+	flush_work(&mdev->shutdown_work);
+	flush_work(&mdev->reset_trigger_work);
+	return rc;
 }
 
 /**
@@ -224,6 +277,7 @@ static void mic_device_uninit(struct mic_device *mdev)
 	kfree(mdev->bootmode);
 	flush_work(&mdev->reset_trigger_work);
 	flush_work(&mdev->shutdown_work);
+	unregister_pm_notifier(&mdev->pm_notifier);
 }
 
 /**
@@ -253,7 +307,11 @@ static int mic_probe(struct pci_dev *pdev,
 		goto ida_fail;
 	}
 
-	mic_device_init(mdev, pdev);
+	rc = mic_device_init(mdev, pdev);
+	if (rc) {
+		dev_err(&pdev->dev, "mic_device_init failed rc %d\n", rc);
+		goto device_init_fail;
+	}
 
 	rc = pci_enable_device(pdev);
 	if (rc) {
@@ -376,6 +434,7 @@ disable_device:
 	pci_disable_device(pdev);
 uninit_device:
 	mic_device_uninit(mdev);
+device_init_fail:
 	ida_simple_remove(&g_mic_ida, mdev->id);
 ida_fail:
 	kfree(mdev);
diff --git a/drivers/misc/mic/host/mic_sysfs.c b/drivers/misc/mic/host/mic_sysfs.c
index 75746adfb155..6dd864e4a617 100644
--- a/drivers/misc/mic/host/mic_sysfs.c
+++ b/drivers/misc/mic/host/mic_sysfs.c
@@ -33,6 +33,8 @@ static const char * const mic_state_string[] = {
 	[MIC_ONLINE] = "online",
 	[MIC_SHUTTING_DOWN] = "shutting_down",
 	[MIC_RESET_FAILED] = "reset_failed",
+	[MIC_SUSPENDING] = "suspending",
+	[MIC_SUSPENDED] = "suspended",
 };
 
 /*
@@ -156,6 +158,11 @@ state_store(struct device *dev, struct device_attribute *attr,
 		goto done;
 	}
 
+	if (sysfs_streq(buf, "suspend")) {
+		mic_suspend(mdev);
+		goto done;
+	}
+
 	count = -EINVAL;
 done:
 	return count;
diff --git a/include/uapi/linux/mic_common.h b/include/uapi/linux/mic_common.h
index 364ac751bd04..17e7d95e4f53 100644
--- a/include/uapi/linux/mic_common.h
+++ b/include/uapi/linux/mic_common.h
@@ -219,6 +219,8 @@ enum mic_states {
 	MIC_ONLINE,
 	MIC_SHUTTING_DOWN,
 	MIC_RESET_FAILED,
+	MIC_SUSPENDING,
+	MIC_SUSPENDED,
 	MIC_LAST
 };
 
-- 
cgit 


From 9987f76ad286887978803ece6cdcf34582279a29 Mon Sep 17 00:00:00 2001
From: Hector Palacios <hector.palacios@digi.com>
Date: Thu, 3 Oct 2013 09:32:03 +0200
Subject: serial: mxs-auart: set the FIFO size to DMA buffer size
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

When DMA is enabled (with hardware flow control enabled) the FIFO size
must be set to the size of the DMA buffer, as this is the size the tty
subsystem can use.

Signed-off-by: Hector Palacios <hector.palacios@digi.com>
Reviewed-by: Marek Vasut <marex@denx.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/mxs-auart.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index 10e9d70b5c40..d8b6fee77a03 100644
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c
@@ -39,6 +39,7 @@
 #include <asm/cacheflush.h>
 
 #define MXS_AUART_PORTS 5
+#define MXS_AUART_FIFO_SIZE		16
 
 #define AUART_CTRL0			0x00000000
 #define AUART_CTRL0_SET			0x00000004
@@ -548,6 +549,9 @@ static int mxs_auart_dma_init(struct mxs_auart_port *s)
 	s->flags |= MXS_AUART_DMA_ENABLED;
 	dev_dbg(s->dev, "enabled the DMA support.");
 
+	/* The DMA buffer is now the FIFO the TTY subsystem can use */
+	s->port.fifosize = UART_XMIT_SIZE;
+
 	return 0;
 
 err_out:
@@ -741,6 +745,9 @@ static int mxs_auart_startup(struct uart_port *u)
 	writel(AUART_INTR_RXIEN | AUART_INTR_RTIEN | AUART_INTR_CTSMIEN,
 			u->membase + AUART_INTR);
 
+	/* Reset FIFO size (it could have changed if DMA was enabled) */
+	u->fifosize = MXS_AUART_FIFO_SIZE;
+
 	/*
 	 * Enable fifo so all four bytes of a DMA word are written to
 	 * output (otherwise, only the LSB is written, ie. 1 in 4 bytes)
@@ -1056,7 +1063,7 @@ static int mxs_auart_probe(struct platform_device *pdev)
 	s->port.membase = ioremap(r->start, resource_size(r));
 	s->port.ops = &mxs_auart_ops;
 	s->port.iotype = UPIO_MEM;
-	s->port.fifosize = 16;
+	s->port.fifosize = MXS_AUART_FIFO_SIZE;
 	s->port.uartclk = clk_get_rate(s->clk);
 	s->port.type = PORT_IMX;
 	s->port.dev = s->dev = &pdev->dev;
-- 
cgit 


From 240ddd495a9e72073d11b1b7c2ec9ea14e7015cb Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Wed, 2 Oct 2013 16:27:47 +0200
Subject: vmw_vmci: Convert driver to use get_user_pages_fast()

Convert vmci_host_setup_notify() and qp_host_get_user_memory() to use
get_user_pages_fast() instead of get_user_pages(). Note that
qp_host_get_user_memory() was using mmap_sem for writing without an
apparent reason.

CC: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/vmw_vmci/vmci_host.c       |  6 +-----
 drivers/misc/vmw_vmci/vmci_queue_pair.c | 21 ++++++---------------
 2 files changed, 7 insertions(+), 20 deletions(-)

diff --git a/drivers/misc/vmw_vmci/vmci_host.c b/drivers/misc/vmw_vmci/vmci_host.c
index d4722b3dc8ec..1723a6e4f2e8 100644
--- a/drivers/misc/vmw_vmci/vmci_host.c
+++ b/drivers/misc/vmw_vmci/vmci_host.c
@@ -243,11 +243,7 @@ static int vmci_host_setup_notify(struct vmci_ctx *context,
 	/*
 	 * Lock physical page backing a given user VA.
 	 */
-	down_read(&current->mm->mmap_sem);
-	retval = get_user_pages(current, current->mm,
-				PAGE_ALIGN(uva),
-				1, 1, 0, &page, NULL);
-	up_read(&current->mm->mmap_sem);
+	retval = get_user_pages_fast(PAGE_ALIGN(uva), 1, 1, &page);
 	if (retval != 1)
 		return VMCI_ERROR_GENERIC;
 
diff --git a/drivers/misc/vmw_vmci/vmci_queue_pair.c b/drivers/misc/vmw_vmci/vmci_queue_pair.c
index a0515a6d6ebd..1b7b303085d2 100644
--- a/drivers/misc/vmw_vmci/vmci_queue_pair.c
+++ b/drivers/misc/vmw_vmci/vmci_queue_pair.c
@@ -732,13 +732,9 @@ static int qp_host_get_user_memory(u64 produce_uva,
 	int retval;
 	int err = VMCI_SUCCESS;
 
-	down_write(&current->mm->mmap_sem);
-	retval = get_user_pages(current,
-				current->mm,
-				(uintptr_t) produce_uva,
-				produce_q->kernel_if->num_pages,
-				1, 0,
-				produce_q->kernel_if->u.h.header_page, NULL);
+	retval = get_user_pages_fast((uintptr_t) produce_uva,
+				     produce_q->kernel_if->num_pages, 1,
+				     produce_q->kernel_if->u.h.header_page);
 	if (retval < produce_q->kernel_if->num_pages) {
 		pr_warn("get_user_pages(produce) failed (retval=%d)", retval);
 		qp_release_pages(produce_q->kernel_if->u.h.header_page,
@@ -747,12 +743,9 @@ static int qp_host_get_user_memory(u64 produce_uva,
 		goto out;
 	}
 
-	retval = get_user_pages(current,
-				current->mm,
-				(uintptr_t) consume_uva,
-				consume_q->kernel_if->num_pages,
-				1, 0,
-				consume_q->kernel_if->u.h.header_page, NULL);
+	retval = get_user_pages_fast((uintptr_t) consume_uva,
+				     consume_q->kernel_if->num_pages, 1,
+				     consume_q->kernel_if->u.h.header_page);
 	if (retval < consume_q->kernel_if->num_pages) {
 		pr_warn("get_user_pages(consume) failed (retval=%d)", retval);
 		qp_release_pages(consume_q->kernel_if->u.h.header_page,
@@ -763,8 +756,6 @@ static int qp_host_get_user_memory(u64 produce_uva,
 	}
 
  out:
-	up_write(&current->mm->mmap_sem);
-
 	return err;
 }
 
-- 
cgit 


From bcc8edb52f05c1a9e75118d6b3bc04996a750593 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sat, 5 Oct 2013 18:25:02 -0700
Subject: driver core: remove dev_attrs from struct class

Now that all in-kernel users of the dev_attrs field are converted to use
dev_groups, we can safely remove dev_attrs from struct class.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/base/core.c    | 38 +-------------------------------------
 include/linux/device.h |  2 --
 2 files changed, 1 insertion(+), 39 deletions(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index 319c2c594ac6..f67e86687ae2 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -455,35 +455,6 @@ static ssize_t online_store(struct device *dev, struct device_attribute *attr,
 }
 static DEVICE_ATTR_RW(online);
 
-static int device_add_attributes(struct device *dev,
-				 struct device_attribute *attrs)
-{
-	int error = 0;
-	int i;
-
-	if (attrs) {
-		for (i = 0; attrs[i].attr.name; i++) {
-			error = device_create_file(dev, &attrs[i]);
-			if (error)
-				break;
-		}
-		if (error)
-			while (--i >= 0)
-				device_remove_file(dev, &attrs[i]);
-	}
-	return error;
-}
-
-static void device_remove_attributes(struct device *dev,
-				     struct device_attribute *attrs)
-{
-	int i;
-
-	if (attrs)
-		for (i = 0; attrs[i].attr.name; i++)
-			device_remove_file(dev, &attrs[i]);
-}
-
 static int device_add_bin_attributes(struct device *dev,
 				     struct bin_attribute *attrs)
 {
@@ -534,12 +505,9 @@ static int device_add_attrs(struct device *dev)
 		error = device_add_groups(dev, class->dev_groups);
 		if (error)
 			return error;
-		error = device_add_attributes(dev, class->dev_attrs);
-		if (error)
-			goto err_remove_class_groups;
 		error = device_add_bin_attributes(dev, class->dev_bin_attrs);
 		if (error)
-			goto err_remove_class_attrs;
+			goto err_remove_class_groups;
 	}
 
 	if (type) {
@@ -566,9 +534,6 @@ static int device_add_attrs(struct device *dev)
  err_remove_class_bin_attrs:
 	if (class)
 		device_remove_bin_attributes(dev, class->dev_bin_attrs);
- err_remove_class_attrs:
-	if (class)
-		device_remove_attributes(dev, class->dev_attrs);
  err_remove_class_groups:
 	if (class)
 		device_remove_groups(dev, class->dev_groups);
@@ -588,7 +553,6 @@ static void device_remove_attrs(struct device *dev)
 		device_remove_groups(dev, type->groups);
 
 	if (class) {
-		device_remove_attributes(dev, class->dev_attrs);
 		device_remove_bin_attributes(dev, class->dev_bin_attrs);
 		device_remove_groups(dev, class->dev_groups);
 	}
diff --git a/include/linux/device.h b/include/linux/device.h
index e7f5b8585380..9ffe8561df75 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -325,7 +325,6 @@ int subsys_virtual_register(struct bus_type *subsys,
  * @owner:	The module owner.
  * @class_attrs: Default attributes of this class.
  * @dev_groups:	Default attributes of the devices that belong to the class.
- * @dev_attrs:	Default attributes of the devices belong to the class.
  * @dev_bin_attrs: Default binary attributes of the devices belong to the class.
  * @dev_kobj:	The kobject that represents this class and links it into the hierarchy.
  * @dev_uevent:	Called when a device is added, removed from this class, or a
@@ -354,7 +353,6 @@ struct class {
 	struct module		*owner;
 
 	struct class_attribute		*class_attrs;
-	struct device_attribute		*dev_attrs;	/* use dev_groups instead */
 	const struct attribute_group	**dev_groups;
 	struct bin_attribute		*dev_bin_attrs;
 	struct kobject			*dev_kobj;
-- 
cgit 


From a6b01deda1e79259d2fe98fe68d41e4b7bad2783 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sat, 5 Oct 2013 18:19:30 -0700
Subject: driver core: remove dev_bin_attrs from struct class

No in-kernel code is now using this, they have all be converted over to
using the bin_attrs support in attribute groups, so this field, and the
code in the driver core that was creating/remove the binary files can be
removed.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/base/core.c    | 41 ++---------------------------------------
 include/linux/device.h |  2 --
 2 files changed, 2 insertions(+), 41 deletions(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index f67e86687ae2..bf35c557707f 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -455,35 +455,6 @@ static ssize_t online_store(struct device *dev, struct device_attribute *attr,
 }
 static DEVICE_ATTR_RW(online);
 
-static int device_add_bin_attributes(struct device *dev,
-				     struct bin_attribute *attrs)
-{
-	int error = 0;
-	int i;
-
-	if (attrs) {
-		for (i = 0; attrs[i].attr.name; i++) {
-			error = device_create_bin_file(dev, &attrs[i]);
-			if (error)
-				break;
-		}
-		if (error)
-			while (--i >= 0)
-				device_remove_bin_file(dev, &attrs[i]);
-	}
-	return error;
-}
-
-static void device_remove_bin_attributes(struct device *dev,
-					 struct bin_attribute *attrs)
-{
-	int i;
-
-	if (attrs)
-		for (i = 0; attrs[i].attr.name; i++)
-			device_remove_bin_file(dev, &attrs[i]);
-}
-
 int device_add_groups(struct device *dev, const struct attribute_group **groups)
 {
 	return sysfs_create_groups(&dev->kobj, groups);
@@ -505,15 +476,12 @@ static int device_add_attrs(struct device *dev)
 		error = device_add_groups(dev, class->dev_groups);
 		if (error)
 			return error;
-		error = device_add_bin_attributes(dev, class->dev_bin_attrs);
-		if (error)
-			goto err_remove_class_groups;
 	}
 
 	if (type) {
 		error = device_add_groups(dev, type->groups);
 		if (error)
-			goto err_remove_class_bin_attrs;
+			goto err_remove_class_groups;
 	}
 
 	error = device_add_groups(dev, dev->groups);
@@ -531,9 +499,6 @@ static int device_add_attrs(struct device *dev)
  err_remove_type_groups:
 	if (type)
 		device_remove_groups(dev, type->groups);
- err_remove_class_bin_attrs:
-	if (class)
-		device_remove_bin_attributes(dev, class->dev_bin_attrs);
  err_remove_class_groups:
 	if (class)
 		device_remove_groups(dev, class->dev_groups);
@@ -552,10 +517,8 @@ static void device_remove_attrs(struct device *dev)
 	if (type)
 		device_remove_groups(dev, type->groups);
 
-	if (class) {
-		device_remove_bin_attributes(dev, class->dev_bin_attrs);
+	if (class)
 		device_remove_groups(dev, class->dev_groups);
-	}
 }
 
 static ssize_t dev_show(struct device *dev, struct device_attribute *attr,
diff --git a/include/linux/device.h b/include/linux/device.h
index 9ffe8561df75..94638efa0bf8 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -325,7 +325,6 @@ int subsys_virtual_register(struct bus_type *subsys,
  * @owner:	The module owner.
  * @class_attrs: Default attributes of this class.
  * @dev_groups:	Default attributes of the devices that belong to the class.
- * @dev_bin_attrs: Default binary attributes of the devices belong to the class.
  * @dev_kobj:	The kobject that represents this class and links it into the hierarchy.
  * @dev_uevent:	Called when a device is added, removed from this class, or a
  *		few other things that generate uevents to add the environment
@@ -354,7 +353,6 @@ struct class {
 
 	struct class_attribute		*class_attrs;
 	const struct attribute_group	**dev_groups;
-	struct bin_attribute		*dev_bin_attrs;
 	struct kobject			*dev_kobj;
 
 	int (*dev_uevent)(struct device *dev, struct kobj_uevent_env *env);
-- 
cgit 


From 23b9003b9ae8dac111460597ba683844e9195e4e Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 5 Oct 2013 11:47:40 -0700
Subject: Bluetooth: Fix controller list for AMP discover response

The AMP discover response should list exactly one BR/EDR controller
and ignore all other BR/EDR controller.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/a2mp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 17f33a62f6db..eb0f05e09cd5 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -92,7 +92,7 @@ static void __a2mp_add_cl(struct amp_mgr *mgr, struct a2mp_cl *cl, u8 num_ctrl)
 
 	list_for_each_entry(hdev, &hci_dev_list, list) {
 		/* Iterate through AMP controllers */
-		if (hdev->id == HCI_BREDR_ID)
+		if (hdev->dev_type != HCI_AMP)
 			continue;
 
 		/* Starting from second entry */
-- 
cgit 


From f822c411b26ce0353c8b97877e53a12e4f895ca1 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 5 Oct 2013 11:47:41 -0700
Subject: Bluetooth: Remove useless external function to count controllers

The list of controllers can be counted ahead of time and inline
inside the AMP discover handling. There is no need to export such
a function at all.

In addition just count the AMP controller and only allocated space
for a single mandatory BR/EDR controller. No need to allocate more
space than needed.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h | 13 -------------
 net/bluetooth/a2mp.c             | 10 +++++++++-
 2 files changed, 9 insertions(+), 14 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 079c5c55c829..db650baf8177 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -704,19 +704,6 @@ static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
 	dev_set_drvdata(&hdev->dev, data);
 }
 
-/* hci_dev_list shall be locked */
-static inline uint8_t __hci_num_ctrl(void)
-{
-	uint8_t count = 0;
-	struct list_head *p;
-
-	list_for_each(p, &hci_dev_list) {
-		count++;
-	}
-
-	return count;
-}
-
 struct hci_dev *hci_dev_get(int index);
 struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src);
 
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index eb0f05e09cd5..a6e45e177b3d 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -129,6 +129,7 @@ static int a2mp_discover_req(struct amp_mgr *mgr, struct sk_buff *skb,
 	struct a2mp_discov_rsp *rsp;
 	u16 ext_feat;
 	u8 num_ctrl;
+	struct hci_dev *hdev;
 
 	if (len < sizeof(*req))
 		return -EINVAL;
@@ -152,7 +153,14 @@ static int a2mp_discover_req(struct amp_mgr *mgr, struct sk_buff *skb,
 
 	read_lock(&hci_dev_list_lock);
 
-	num_ctrl = __hci_num_ctrl();
+	/* at minimum the BR/EDR needs to be listed */
+	num_ctrl = 1;
+
+	list_for_each_entry(hdev, &hci_dev_list, list) {
+		if (hdev->dev_type == HCI_AMP)
+			num_ctrl++;
+	}
+
 	len = num_ctrl * sizeof(struct a2mp_cl) + sizeof(*rsp);
 	rsp = kmalloc(len, GFP_ATOMIC);
 	if (!rsp) {
-- 
cgit 


From 7c13823d5b6b7cf06adeb5d56d2435fc0d97383f Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 5 Oct 2013 11:47:42 -0700
Subject: Bluetooth: Add constants for AMP controller type

Add the constants for BR/EDR and 802.11 AMP controller types.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index e8bba05686d1..8e3076ebb8ad 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -66,6 +66,10 @@
 /* First BR/EDR Controller shall have ID = 0 */
 #define HCI_BREDR_ID	0
 
+/* AMP controller types */
+#define AMP_TYPE_BREDR	0x00
+#define AMP_TYPE_80211	0x01
+
 /* AMP controller status */
 #define AMP_CTRL_POWERED_DOWN			0x00
 #define AMP_CTRL_BLUETOOTH_ONLY			0x01
-- 
cgit 


From 39116e26eb27dc051977b27ef4b2e90cd4993f86 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sun, 6 Oct 2013 00:47:35 -0700
Subject: Input: lpc32xx-keys - remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/keyboard/lpc32xx-keys.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/keyboard/lpc32xx-keys.c b/drivers/input/keyboard/lpc32xx-keys.c
index 42181435fe67..8b1b01361ec6 100644
--- a/drivers/input/keyboard/lpc32xx-keys.c
+++ b/drivers/input/keyboard/lpc32xx-keys.c
@@ -383,7 +383,7 @@ static struct platform_driver lpc32xx_kscan_driver = {
 		.name	= DRV_NAME,
 		.owner	= THIS_MODULE,
 		.pm	= &lpc32xx_kscan_pm_ops,
-		.of_match_table = of_match_ptr(lpc32xx_kscan_match),
+		.of_match_table = lpc32xx_kscan_match,
 	}
 };
 
-- 
cgit 


From 4c93ca5ff29a9228e9799f64287d540e6c5b6e32 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sun, 6 Oct 2013 00:49:32 -0700
Subject: Input: nspire-keypad - remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/keyboard/nspire-keypad.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/keyboard/nspire-keypad.c b/drivers/input/keyboard/nspire-keypad.c
index b3e3edab6d9f..9981928234cd 100644
--- a/drivers/input/keyboard/nspire-keypad.c
+++ b/drivers/input/keyboard/nspire-keypad.c
@@ -267,7 +267,7 @@ static struct platform_driver nspire_keypad_driver = {
 	.driver = {
 		.name = "nspire-keypad",
 		.owner = THIS_MODULE,
-		.of_match_table = of_match_ptr(nspire_keypad_dt_match),
+		.of_match_table = nspire_keypad_dt_match,
 	},
 	.probe = nspire_keypad_probe,
 };
-- 
cgit 


From 3cbd04f856467d8e3b2cb15194508f38c507047a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sun, 6 Oct 2013 00:50:31 -0700
Subject: Input: tegra-kbc - remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/keyboard/tegra-kbc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c
index 9cd20e6905a0..8508879f6faf 100644
--- a/drivers/input/keyboard/tegra-kbc.c
+++ b/drivers/input/keyboard/tegra-kbc.c
@@ -614,7 +614,7 @@ static int tegra_kbc_probe(struct platform_device *pdev)
 	unsigned int keymap_rows;
 	const struct of_device_id *match;
 
-	match = of_match_device(of_match_ptr(tegra_kbc_of_match), &pdev->dev);
+	match = of_match_device(tegra_kbc_of_match, &pdev->dev);
 
 	kbc = devm_kzalloc(&pdev->dev, sizeof(*kbc), GFP_KERNEL);
 	if (!kbc) {
-- 
cgit 


From dee964c0b82230c6fc291514b925f030e6f72a4c Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sun, 6 Oct 2013 00:51:28 -0700
Subject: Input: sirfsoc-onkey - remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/misc/sirfsoc-onkey.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/misc/sirfsoc-onkey.c b/drivers/input/misc/sirfsoc-onkey.c
index 0621c367049a..7b8b03e0d0be 100644
--- a/drivers/input/misc/sirfsoc-onkey.c
+++ b/drivers/input/misc/sirfsoc-onkey.c
@@ -153,7 +153,7 @@ static struct platform_driver sirfsoc_pwrc_driver = {
 		.name	= "sirfsoc-pwrc",
 		.owner	= THIS_MODULE,
 		.pm	= &sirfsoc_pwrc_pm_ops,
-		.of_match_table = of_match_ptr(sirfsoc_pwrc_of_match),
+		.of_match_table = sirfsoc_pwrc_of_match,
 	}
 };
 
-- 
cgit 


From 085f17c6542c089e094633070d0e2e466f6da80b Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sun, 6 Oct 2013 00:52:12 -0700
Subject: Input: egalax_ts - remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/egalax_ts.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/egalax_ts.c b/drivers/input/touchscreen/egalax_ts.c
index ef5fcb0945e9..054d22583248 100644
--- a/drivers/input/touchscreen/egalax_ts.c
+++ b/drivers/input/touchscreen/egalax_ts.c
@@ -273,7 +273,7 @@ static struct i2c_driver egalax_ts_driver = {
 		.name	= "egalax_ts",
 		.owner	= THIS_MODULE,
 		.pm	= &egalax_ts_pm_ops,
-		.of_match_table	= of_match_ptr(egalax_ts_dt_ids),
+		.of_match_table	= egalax_ts_dt_ids,
 	},
 	.id_table	= egalax_ts_id,
 	.probe		= egalax_ts_probe,
-- 
cgit 


From 8e6146bf5b779dd8c78df625549d1f92beaa23e7 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sun, 6 Oct 2013 00:53:52 -0700
Subject: Input: ti_am335x_tsc - remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/ti_am335x_tsc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c
index e1c5300cacfc..df9b24f7e2cb 100644
--- a/drivers/input/touchscreen/ti_am335x_tsc.c
+++ b/drivers/input/touchscreen/ti_am335x_tsc.c
@@ -505,7 +505,7 @@ static struct platform_driver ti_tsc_driver = {
 		.name   = "TI-am335x-tsc",
 		.owner	= THIS_MODULE,
 		.pm	= TITSC_PM_OPS,
-		.of_match_table = of_match_ptr(ti_tsc_dt_ids),
+		.of_match_table = ti_tsc_dt_ids,
 	},
 };
 module_platform_driver(ti_tsc_driver);
-- 
cgit 


From 415a4caae91c42fa1f6b79f8b503e0814d847b69 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sun, 6 Oct 2013 00:55:14 -0700
Subject: Input: gpio_keys - include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/keyboard/gpio_keys.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/input/keyboard/gpio_keys.c b/drivers/input/keyboard/gpio_keys.c
index 440ce32462ba..2db13246eb8e 100644
--- a/drivers/input/keyboard/gpio_keys.c
+++ b/drivers/input/keyboard/gpio_keys.c
@@ -26,6 +26,7 @@
 #include <linux/gpio_keys.h>
 #include <linux/workqueue.h>
 #include <linux/gpio.h>
+#include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/of_gpio.h>
 #include <linux/spinlock.h>
-- 
cgit 


From 278017030db78799055f5459ed9722568c9cf9e7 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sun, 6 Oct 2013 00:55:33 -0700
Subject: Input: gpio_keys_polled - include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/keyboard/gpio_keys_polled.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/input/keyboard/gpio_keys_polled.c b/drivers/input/keyboard/gpio_keys_polled.c
index cd5ed9e22168..4e428199e580 100644
--- a/drivers/input/keyboard/gpio_keys_polled.c
+++ b/drivers/input/keyboard/gpio_keys_polled.c
@@ -25,6 +25,7 @@
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
 #include <linux/gpio_keys.h>
+#include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/of_gpio.h>
 
-- 
cgit 


From 95ba7407e29292eda2ca211845347ad2ccff2842 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sun, 6 Oct 2013 00:55:51 -0700
Subject: Input: pxa27x_keypad - include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/keyboard/pxa27x_keypad.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/input/keyboard/pxa27x_keypad.c b/drivers/input/keyboard/pxa27x_keypad.c
index 134c3b404a54..5446ad4e4aeb 100644
--- a/drivers/input/keyboard/pxa27x_keypad.c
+++ b/drivers/input/keyboard/pxa27x_keypad.c
@@ -27,6 +27,7 @@
 #include <linux/err.h>
 #include <linux/input/matrix_keypad.h>
 #include <linux/slab.h>
+#include <linux/of.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
-- 
cgit 


From 9dbe4c326ecae28b5b917d21eeeef57251a9d1aa Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sun, 6 Oct 2013 00:56:09 -0700
Subject: Input: pwm-beeper - include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/misc/pwm-beeper.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/input/misc/pwm-beeper.c b/drivers/input/misc/pwm-beeper.c
index 2ff4d1c78ab8..940566e7be13 100644
--- a/drivers/input/misc/pwm-beeper.c
+++ b/drivers/input/misc/pwm-beeper.c
@@ -16,6 +16,7 @@
 #include <linux/input.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pwm.h>
 #include <linux/slab.h>
-- 
cgit 


From 2e45e539a90afbfe572edc0f34ae367a080de360 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sun, 6 Oct 2013 00:56:24 -0700
Subject: Input: rotary_encoder - include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/misc/rotary_encoder.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c
index 5b1aff825138..f920ba7ab51f 100644
--- a/drivers/input/misc/rotary_encoder.c
+++ b/drivers/input/misc/rotary_encoder.c
@@ -24,6 +24,7 @@
 #include <linux/gpio.h>
 #include <linux/rotary_encoder.h>
 #include <linux/slab.h>
+#include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/of_gpio.h>
 
-- 
cgit 


From 4d6e482675f13e33599fc3d18fc723959be0a9b6 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sun, 6 Oct 2013 00:56:40 -0700
Subject: Input: st1232 - include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/st1232.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/input/touchscreen/st1232.c b/drivers/input/touchscreen/st1232.c
index 1740a2496371..2f03b2f289dd 100644
--- a/drivers/input/touchscreen/st1232.c
+++ b/drivers/input/touchscreen/st1232.c
@@ -24,6 +24,7 @@
 #include <linux/input.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/of_gpio.h>
 #include <linux/pm_qos.h>
 #include <linux/slab.h>
-- 
cgit 


From ece6912648da3fcf257a40774e3aad531c3e5fac Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 5 Oct 2013 11:47:43 -0700
Subject: Bluetooth: Separate AMP controller type from HCI device type

There are two defined HCI device types. One is for BR/EDR controllers
and the other is for AMP controllers. The HCI device type is not the
same as the AMP controller type. It just happens that currently the
defined types match, but that is not guaranteed.

Split the usage of AMP controller type into its own domain so that
it is possible to separate between BR/EDR controllers, 802.11 AMP
controllers and any other AMP technology that might be defined in
the future.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h | 2 +-
 net/bluetooth/a2mp.c             | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index db650baf8177..4cb355b023a4 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -803,7 +803,7 @@ static inline bool hci_amp_capable(void)
 
 	read_lock(&hci_dev_list_lock);
 	list_for_each_entry(hdev, &hci_dev_list, list)
-		if (hdev->amp_type == HCI_AMP &&
+		if (hdev->amp_type != AMP_TYPE_BREDR &&
 		    test_bit(HCI_UP, &hdev->flags))
 			ret = true;
 	read_unlock(&hci_dev_list_lock);
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index a6e45e177b3d..b2ef3d392a0e 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -78,7 +78,7 @@ u8 __next_ident(struct amp_mgr *mgr)
 static inline void __a2mp_cl_bredr(struct a2mp_cl *cl)
 {
 	cl->id = 0;
-	cl->type = 0;
+	cl->type = AMP_TYPE_BREDR;
 	cl->status = 1;
 }
 
@@ -352,7 +352,7 @@ static int a2mp_getampassoc_req(struct amp_mgr *mgr, struct sk_buff *skb,
 	tmp = amp_mgr_lookup_by_state(READ_LOC_AMP_ASSOC);
 
 	hdev = hci_dev_get(req->id);
-	if (!hdev || hdev->amp_type == HCI_BREDR || tmp) {
+	if (!hdev || hdev->amp_type == AMP_TYPE_BREDR || tmp) {
 		struct a2mp_amp_assoc_rsp rsp;
 		rsp.id = req->id;
 
@@ -459,7 +459,7 @@ static int a2mp_createphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb,
 	rsp.remote_id = req->local_id;
 
 	hdev = hci_dev_get(req->remote_id);
-	if (!hdev || hdev->amp_type != HCI_AMP) {
+	if (!hdev || hdev->amp_type == AMP_TYPE_BREDR) {
 		rsp.status = A2MP_STATUS_INVALID_CTRL_ID;
 		goto send_rsp;
 	}
@@ -879,7 +879,7 @@ void a2mp_send_getinfo_rsp(struct hci_dev *hdev)
 	rsp.id = hdev->id;
 	rsp.status = A2MP_STATUS_INVALID_CTRL_ID;
 
-	if (hdev->amp_type != HCI_BREDR) {
+	if (hdev->amp_type != AMP_TYPE_BREDR) {
 		rsp.status = 0;
 		rsp.total_bw = cpu_to_le32(hdev->amp_total_bw);
 		rsp.max_bw = cpu_to_le32(hdev->amp_max_bw);
-- 
cgit 


From 6ed971ca4f6bd96e26b3166cb5a94f7f8158fe77 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 5 Oct 2013 11:47:44 -0700
Subject: Bluetooth: Use explicit AMP controller id value for BR/EDR

The special AMP controller id 0 is reserved for the BR/EDR controller
that has the main link. It is a fixed value and so use a constant for
this throughout the code to make it more visible when the handling is
for the BR/EDR channel or when it is for the AMP channel.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci.h |  2 +-
 net/bluetooth/a2mp.c        |  4 ++--
 net/bluetooth/l2cap_core.c  | 28 ++++++++++++++--------------
 3 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 8e3076ebb8ad..393eabc0d21f 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -64,7 +64,7 @@
 #define HCI_AMP		0x01
 
 /* First BR/EDR Controller shall have ID = 0 */
-#define HCI_BREDR_ID	0
+#define AMP_ID_BREDR	0x00
 
 /* AMP controller types */
 #define AMP_TYPE_BREDR	0x00
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index b2ef3d392a0e..6d62d3140cf8 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -77,7 +77,7 @@ u8 __next_ident(struct amp_mgr *mgr)
 
 static inline void __a2mp_cl_bredr(struct a2mp_cl *cl)
 {
-	cl->id = 0;
+	cl->id = AMP_ID_BREDR;
 	cl->type = AMP_TYPE_BREDR;
 	cl->status = 1;
 }
@@ -216,7 +216,7 @@ static int a2mp_discover_rsp(struct amp_mgr *mgr, struct sk_buff *skb,
 		BT_DBG("Remote AMP id %d type %d status %d", cl->id, cl->type,
 		       cl->status);
 
-		if (cl->id != HCI_BREDR_ID && cl->type == HCI_AMP) {
+		if (cl->id != AMP_ID_BREDR && cl->type == HCI_AMP) {
 			struct a2mp_info_req req;
 
 			found = true;
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 02dba4e6df96..b0208e20390c 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -3046,8 +3046,8 @@ int l2cap_ertm_init(struct l2cap_chan *chan)
 
 	skb_queue_head_init(&chan->tx_q);
 
-	chan->local_amp_id = 0;
-	chan->move_id = 0;
+	chan->local_amp_id = AMP_ID_BREDR;
+	chan->move_id = AMP_ID_BREDR;
 	chan->move_state = L2CAP_MOVE_STABLE;
 	chan->move_role = L2CAP_MOVE_ROLE_NONE;
 
@@ -3100,7 +3100,7 @@ static inline bool __l2cap_efs_supported(struct l2cap_conn *conn)
 static void __l2cap_set_ertm_timeouts(struct l2cap_chan *chan,
 				      struct l2cap_conf_rfc *rfc)
 {
-	if (chan->local_amp_id && chan->hs_hcon) {
+	if (chan->local_amp_id != AMP_ID_BREDR && chan->hs_hcon) {
 		u64 ertm_to = chan->hs_hcon->hdev->amp_be_flush_to;
 
 		/* Class 1 devices have must have ERTM timeouts
@@ -3791,12 +3791,12 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 				 * The connection will succeed after the
 				 * physical link is up.
 				 */
-				if (amp_id) {
-					__l2cap_state_change(chan, BT_CONNECT2);
-					result = L2CAP_CR_PEND;
-				} else {
+				if (amp_id == AMP_ID_BREDR) {
 					__l2cap_state_change(chan, BT_CONFIG);
 					result = L2CAP_CR_SUCCESS;
+				} else {
+					__l2cap_state_change(chan, BT_CONNECT2);
+					result = L2CAP_CR_PEND;
 				}
 				status = L2CAP_CS_NO_INFO;
 			}
@@ -4423,7 +4423,7 @@ static int l2cap_create_channel_req(struct l2cap_conn *conn,
 	BT_DBG("psm 0x%2.2x, scid 0x%4.4x, amp_id %d", psm, scid, req->amp_id);
 
 	/* For controller id 0 make BR/EDR connection */
-	if (req->amp_id == HCI_BREDR_ID) {
+	if (req->amp_id == AMP_ID_BREDR) {
 		l2cap_connect(conn, cmd, data, L2CAP_CREATE_CHAN_RSP,
 			      req->amp_id);
 		return 0;
@@ -4658,7 +4658,7 @@ void l2cap_logical_cfm(struct l2cap_chan *chan, struct hci_chan *hchan,
 
 	if (chan->state != BT_CONNECTED) {
 		/* Ignore logical link if channel is on BR/EDR */
-		if (chan->local_amp_id)
+		if (chan->local_amp_id != AMP_ID_BREDR)
 			l2cap_logical_finish_create(chan, hchan);
 	} else {
 		l2cap_logical_finish_move(chan, hchan);
@@ -4669,7 +4669,7 @@ void l2cap_move_start(struct l2cap_chan *chan)
 {
 	BT_DBG("chan %p", chan);
 
-	if (chan->local_amp_id == HCI_BREDR_ID) {
+	if (chan->local_amp_id == AMP_ID_BREDR) {
 		if (chan->chan_policy != BT_CHANNEL_POLICY_AMP_PREFERRED)
 			return;
 		chan->move_role = L2CAP_MOVE_ROLE_INITIATOR;
@@ -4868,7 +4868,7 @@ static inline int l2cap_move_channel_req(struct l2cap_conn *conn,
 		goto send_move_response;
 	}
 
-	if (req->dest_amp_id) {
+	if (req->dest_amp_id != AMP_ID_BREDR) {
 		struct hci_dev *hdev;
 		hdev = hci_dev_get(req->dest_amp_id);
 		if (!hdev || hdev->dev_type != HCI_AMP ||
@@ -4898,7 +4898,7 @@ static inline int l2cap_move_channel_req(struct l2cap_conn *conn,
 	chan->move_id = req->dest_amp_id;
 	icid = chan->dcid;
 
-	if (!req->dest_amp_id) {
+	if (req->dest_amp_id == AMP_ID_BREDR) {
 		/* Moving to BR/EDR */
 		if (test_bit(CONN_LOCAL_BUSY, &chan->conn_state)) {
 			chan->move_state = L2CAP_MOVE_WAIT_LOCAL_BUSY;
@@ -5090,7 +5090,7 @@ static int l2cap_move_channel_confirm(struct l2cap_conn *conn,
 	if (chan->move_state == L2CAP_MOVE_WAIT_CONFIRM) {
 		if (result == L2CAP_MC_CONFIRMED) {
 			chan->local_amp_id = chan->move_id;
-			if (!chan->local_amp_id)
+			if (chan->local_amp_id == AMP_ID_BREDR)
 				__release_logical_link(chan);
 		} else {
 			chan->move_id = chan->local_amp_id;
@@ -5130,7 +5130,7 @@ static inline int l2cap_move_channel_confirm_rsp(struct l2cap_conn *conn,
 	if (chan->move_state == L2CAP_MOVE_WAIT_CONFIRM_RSP) {
 		chan->local_amp_id = chan->move_id;
 
-		if (!chan->local_amp_id && chan->hs_hchan)
+		if (chan->local_amp_id == AMP_ID_BREDR && chan->hs_hchan)
 			__release_logical_link(chan);
 
 		l2cap_move_done(chan);
-- 
cgit 


From 536619e86d9398a20063f7c3d15deb9dcc234097 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 5 Oct 2013 11:47:45 -0700
Subject: Bluetooth: Rename AMP status constants and use them

The AMP controller status constants need to be actually used to avoid
crypted hardcoded numbers.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci.h | 14 +++++++-------
 net/bluetooth/a2mp.c        |  2 +-
 net/bluetooth/hci_core.c    |  2 +-
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 393eabc0d21f..9f8d1c1f0414 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -71,13 +71,13 @@
 #define AMP_TYPE_80211	0x01
 
 /* AMP controller status */
-#define AMP_CTRL_POWERED_DOWN			0x00
-#define AMP_CTRL_BLUETOOTH_ONLY			0x01
-#define AMP_CTRL_NO_CAPACITY			0x02
-#define AMP_CTRL_LOW_CAPACITY			0x03
-#define AMP_CTRL_MEDIUM_CAPACITY		0x04
-#define AMP_CTRL_HIGH_CAPACITY			0x05
-#define AMP_CTRL_FULL_CAPACITY			0x06
+#define AMP_STATUS_POWERED_DOWN			0x00
+#define AMP_STATUS_BLUETOOTH_ONLY		0x01
+#define AMP_STATUS_NO_CAPACITY			0x02
+#define AMP_STATUS_LOW_CAPACITY			0x03
+#define AMP_STATUS_MEDIUM_CAPACITY		0x04
+#define AMP_STATUS_HIGH_CAPACITY		0x05
+#define AMP_STATUS_FULL_CAPACITY		0x06
 
 /* HCI device quirks */
 enum {
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 6d62d3140cf8..6dfef731825f 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -79,7 +79,7 @@ static inline void __a2mp_cl_bredr(struct a2mp_cl *cl)
 {
 	cl->id = AMP_ID_BREDR;
 	cl->type = AMP_TYPE_BREDR;
-	cl->status = 1;
+	cl->status = AMP_STATUS_BLUETOOTH_ONLY;
 }
 
 /* hci_dev_list shall be locked */
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index aa63ebb114d4..0d5fe0843f5e 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1381,7 +1381,7 @@ static int hci_dev_do_close(struct hci_dev *hdev)
 	}
 
 	/* Controller radio is available but is currently powered down */
-	hdev->amp_status = 0;
+	hdev->amp_status = AMP_STATUS_POWERED_DOWN;
 
 	memset(hdev->eir, 0, sizeof(hdev->eir));
 	memset(hdev->dev_class, 0, sizeof(hdev->dev_class));
-- 
cgit 


From 346e7099c299eae085efd9b4aeda813d69bc364b Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 5 Oct 2013 11:47:46 -0700
Subject: Bluetooth: Remove pointless inline function

The inline function for BR/EDR controller AMP discover response
info is rather useless. Just include the code into the function
that builds the whole response.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/a2mp.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 6dfef731825f..a1aae5c45b7e 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -75,20 +75,15 @@ u8 __next_ident(struct amp_mgr *mgr)
 	return mgr->ident;
 }
 
-static inline void __a2mp_cl_bredr(struct a2mp_cl *cl)
-{
-	cl->id = AMP_ID_BREDR;
-	cl->type = AMP_TYPE_BREDR;
-	cl->status = AMP_STATUS_BLUETOOTH_ONLY;
-}
-
 /* hci_dev_list shall be locked */
 static void __a2mp_add_cl(struct amp_mgr *mgr, struct a2mp_cl *cl, u8 num_ctrl)
 {
 	int i = 0;
 	struct hci_dev *hdev;
 
-	__a2mp_cl_bredr(cl);
+	cl[0].id = AMP_ID_BREDR;
+	cl[0].type = AMP_TYPE_BREDR;
+	cl[0].status = AMP_STATUS_BLUETOOTH_ONLY;
 
 	list_for_each_entry(hdev, &hci_dev_list, list) {
 		/* Iterate through AMP controllers */
-- 
cgit 


From 23f0cb41a20e9850513fa4943f6a19525000cce2 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 5 Oct 2013 11:47:47 -0700
Subject: Bluetooth: Remove check for number of AMP controller

The number of controllers for the AMP discover response has already
been calculated. And since the hci_dev_list lock is held, it can not
change. So there is no need for any extra checks.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/a2mp.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index a1aae5c45b7e..529789d81159 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -76,7 +76,7 @@ u8 __next_ident(struct amp_mgr *mgr)
 }
 
 /* hci_dev_list shall be locked */
-static void __a2mp_add_cl(struct amp_mgr *mgr, struct a2mp_cl *cl, u8 num_ctrl)
+static void __a2mp_add_cl(struct amp_mgr *mgr, struct a2mp_cl *cl)
 {
 	int i = 0;
 	struct hci_dev *hdev;
@@ -91,8 +91,7 @@ static void __a2mp_add_cl(struct amp_mgr *mgr, struct a2mp_cl *cl, u8 num_ctrl)
 			continue;
 
 		/* Starting from second entry */
-		if (++i >= num_ctrl)
-			return;
+		++i;
 
 		cl[i].id = hdev->id;
 		cl[i].type = hdev->amp_type;
@@ -166,7 +165,7 @@ static int a2mp_discover_req(struct amp_mgr *mgr, struct sk_buff *skb,
 	rsp->mtu = __constant_cpu_to_le16(L2CAP_A2MP_DEFAULT_MTU);
 	rsp->ext_feat = 0;
 
-	__a2mp_add_cl(mgr, rsp->cl, num_ctrl);
+	__a2mp_add_cl(mgr, rsp->cl);
 
 	read_unlock(&hci_dev_list_lock);
 
-- 
cgit 


From 80d58d0b5b18b68addad61e228ced167f8b80dd3 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 5 Oct 2013 11:47:48 -0700
Subject: Bluetooth: Move hci_amp_capable() function into L2CAP core

The hci_amp_capable() function has only a single user inside the L2CAP
core. Instead of exporting the function, place it next to its user.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h | 16 ----------------
 net/bluetooth/l2cap_core.c       | 16 ++++++++++++++++
 2 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 4cb355b023a4..82c397451261 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -795,22 +795,6 @@ void hci_conn_del_sysfs(struct hci_conn *conn);
 #define lmp_host_le_capable(dev)   (!!((dev)->features[1][0] & LMP_HOST_LE))
 #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
 
-/* returns true if at least one AMP active */
-static inline bool hci_amp_capable(void)
-{
-	struct hci_dev *hdev;
-	bool ret = false;
-
-	read_lock(&hci_dev_list_lock);
-	list_for_each_entry(hdev, &hci_dev_list, list)
-		if (hdev->amp_type != AMP_TYPE_BREDR &&
-		    test_bit(HCI_UP, &hdev->flags))
-			ret = true;
-	read_unlock(&hci_dev_list_lock);
-
-	return ret;
-}
-
 /* ----- HCI protocols ----- */
 #define HCI_PROTO_DEFER             0x01
 
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index b0208e20390c..2efdb17d87a3 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1012,6 +1012,22 @@ static inline int __l2cap_no_conn_pending(struct l2cap_chan *chan)
 	return !test_bit(CONF_CONNECT_PEND, &chan->conf_state);
 }
 
+/* returns true if at least one AMP active */
+static inline bool hci_amp_capable(void)
+{
+	struct hci_dev *hdev;
+	bool ret = false;
+
+	read_lock(&hci_dev_list_lock);
+	list_for_each_entry(hdev, &hci_dev_list, list)
+		if (hdev->amp_type != AMP_TYPE_BREDR &&
+		    test_bit(HCI_UP, &hdev->flags))
+			ret = true;
+	read_unlock(&hci_dev_list_lock);
+
+	return ret;
+}
+
 static bool __amp_capable(struct l2cap_chan *chan)
 {
 	struct l2cap_conn *conn = chan->conn;
-- 
cgit 


From 1df7b17a87b1aa4d08c461fce06226d33910bf94 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 5 Oct 2013 11:47:49 -0700
Subject: Bluetooth: Simplify check if L2CAP connection is AMP capable

The check if a L2CAP connection is AMP capable was a little bit
complicated. This changes the code to make it simpler and more
readable.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/l2cap_core.c | 34 +++++++++++++++++-----------------
 1 file changed, 17 insertions(+), 17 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 2efdb17d87a3..a9a7df6639a7 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1012,30 +1012,30 @@ static inline int __l2cap_no_conn_pending(struct l2cap_chan *chan)
 	return !test_bit(CONF_CONNECT_PEND, &chan->conf_state);
 }
 
-/* returns true if at least one AMP active */
-static inline bool hci_amp_capable(void)
+static bool __amp_capable(struct l2cap_chan *chan)
 {
+	struct l2cap_conn *conn = chan->conn;
 	struct hci_dev *hdev;
-	bool ret = false;
+	bool amp_available = false;
+
+	if (!conn->hs_enabled)
+		return false;
+
+	if (!(conn->fixed_chan_mask & L2CAP_FC_A2MP))
+		return false;
 
 	read_lock(&hci_dev_list_lock);
-	list_for_each_entry(hdev, &hci_dev_list, list)
+	list_for_each_entry(hdev, &hci_dev_list, list) {
 		if (hdev->amp_type != AMP_TYPE_BREDR &&
-		    test_bit(HCI_UP, &hdev->flags))
-			ret = true;
+		    test_bit(HCI_UP, &hdev->flags)) {
+			amp_available = true;
+			break;
+		}
+	}
 	read_unlock(&hci_dev_list_lock);
 
-	return ret;
-}
-
-static bool __amp_capable(struct l2cap_chan *chan)
-{
-	struct l2cap_conn *conn = chan->conn;
-
-	if (conn->hs_enabled && hci_amp_capable() &&
-	    chan->chan_policy == BT_CHANNEL_POLICY_AMP_PREFERRED &&
-	    conn->fixed_chan_mask & L2CAP_FC_A2MP)
-		return true;
+	if (chan->chan_policy == BT_CHANNEL_POLICY_AMP_PREFERRED)
+		return amp_available;
 
 	return false;
 }
-- 
cgit 


From a646bd81945b337b1cf37dea4734847947a0d9ad Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 5 Oct 2013 13:57:53 -0700
Subject: Bluetooth: Check for non BR/EDR controller in AMP discover response

Within the AMP discover response, all controllers that are not the
primary BR/EDR controller are valid.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/a2mp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 529789d81159..ad8bda3a6fd1 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -210,7 +210,7 @@ static int a2mp_discover_rsp(struct amp_mgr *mgr, struct sk_buff *skb,
 		BT_DBG("Remote AMP id %d type %d status %d", cl->id, cl->type,
 		       cl->status);
 
-		if (cl->id != AMP_ID_BREDR && cl->type == HCI_AMP) {
+		if (cl->id != AMP_ID_BREDR && cl->type != AMP_TYPE_BREDR) {
 			struct a2mp_info_req req;
 
 			found = true;
-- 
cgit 


From a5c8f270e4dae14ea5cb88e477ed1092955f8722 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 01:08:57 -0700
Subject: Bluetooth: Reject enabling controllers without valid addresses

In case of a single mode LE-only controller it is possible that no
public address is used. These type of controllers require a random
address to be configured.

Without a configured static random address, such a controller is
not functional. So reject powering on the controller in this case
until it gets configured with a random address.

The controller setup stage is still run since it is the only way
to determinate if a public address is available or not. So it is
similar on how RFKILL gets handled during initial setup of the
controller.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 43 +++++++++++++++++++++++++++++++++++--------
 1 file changed, 35 insertions(+), 8 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 0d5fe0843f5e..4a9b8dda754e 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1196,13 +1196,29 @@ static int hci_dev_do_open(struct hci_dev *hdev)
 		goto done;
 	}
 
-	/* Check for rfkill but allow the HCI setup stage to proceed
-	 * (which in itself doesn't cause any RF activity).
-	 */
-	if (test_bit(HCI_RFKILLED, &hdev->dev_flags) &&
-	    !test_bit(HCI_SETUP, &hdev->dev_flags)) {
-		ret = -ERFKILL;
-		goto done;
+	if (!test_bit(HCI_SETUP, &hdev->dev_flags)) {
+		/* Check for rfkill but allow the HCI setup stage to
+		 * proceed (which in itself doesn't cause any RF activity).
+		 */
+		if (test_bit(HCI_RFKILLED, &hdev->dev_flags)) {
+			ret = -ERFKILL;
+			goto done;
+		}
+
+		/* Check for valid public address or a configured static
+		 * random adddress, but let the HCI setup proceed to
+		 * be able to determine if there is a public address
+		 * or not.
+		 *
+		 * This check is only valid for BR/EDR controllers
+		 * since AMP controllers do not have an address.
+		 */
+		if (hdev->dev_type == HCI_BREDR &&
+		    !bacmp(&hdev->bdaddr, BDADDR_ANY) &&
+		    !bacmp(&hdev->static_addr, BDADDR_ANY)) {
+			ret = -EADDRNOTAVAIL;
+			goto done;
+		}
 	}
 
 	if (test_bit(HCI_UP, &hdev->flags)) {
@@ -1288,6 +1304,10 @@ int hci_dev_open(__u16 dev)
 	if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags))
 		cancel_delayed_work(&hdev->power_off);
 
+	/* After this call it is guaranteed that the setup procedure
+	 * has finished. This means that error conditions like RFKILL
+	 * or no valid public or static random address apply.
+	 */
 	flush_workqueue(hdev->req_workqueue);
 
 	err = hci_dev_do_open(hdev);
@@ -1703,7 +1723,14 @@ static void hci_power_on(struct work_struct *work)
 		return;
 	}
 
-	if (test_bit(HCI_RFKILLED, &hdev->dev_flags)) {
+	/* During the HCI setup phase, a few error conditions are
+	 * ignored and they need to be checked now. If they are still
+	 * valid, it is important to turn the device back off.
+	 */
+	if (test_bit(HCI_RFKILLED, &hdev->dev_flags) ||
+	    (hdev->dev_type == HCI_BREDR &&
+	     !bacmp(&hdev->bdaddr, BDADDR_ANY) &&
+	     !bacmp(&hdev->static_addr, BDADDR_ANY))) {
 		clear_bit(HCI_AUTO_OFF, &hdev->dev_flags);
 		hci_dev_do_close(hdev);
 	} else if (test_bit(HCI_AUTO_OFF, &hdev->dev_flags)) {
-- 
cgit 


From 01cd340427ab01a744a539981bcc4ef00e5ad133 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 01:16:22 -0700
Subject: Bluetooth: Use explicit check for BR/EDR device type

The BR/EDR and LE setup procedures apply only to BR/EDR device types
and so check for that explicitly. Checking that it is not an AMP
controller is dangerous in case there will be ever a third device
type.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 4a9b8dda754e..bf3c5b0c22b9 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2357,7 +2357,7 @@ int hci_register_dev(struct hci_dev *hdev)
 
 	set_bit(HCI_SETUP, &hdev->dev_flags);
 
-	if (hdev->dev_type != HCI_AMP) {
+	if (hdev->dev_type == HCI_BREDR) {
 		set_bit(HCI_AUTO_OFF, &hdev->dev_flags);
 		/* Assume BR/EDR support until proven otherwise (such as
 		 * through reading supported features during init.
-- 
cgit 


From e8803534a03ddfcb37bd3d6cb981c5131a5bd993 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 02:08:35 -0700
Subject: Bluetooth: Simplify device type check for AMP discover response

When counting the number for AMP controllers, a positive check is
used. To be consistent, use the same check when actually adding
the data for the AMP contollers.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/a2mp.c | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index ad8bda3a6fd1..9410e272d8b6 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -78,24 +78,20 @@ u8 __next_ident(struct amp_mgr *mgr)
 /* hci_dev_list shall be locked */
 static void __a2mp_add_cl(struct amp_mgr *mgr, struct a2mp_cl *cl)
 {
-	int i = 0;
 	struct hci_dev *hdev;
+	int i = 1;
 
 	cl[0].id = AMP_ID_BREDR;
 	cl[0].type = AMP_TYPE_BREDR;
 	cl[0].status = AMP_STATUS_BLUETOOTH_ONLY;
 
 	list_for_each_entry(hdev, &hci_dev_list, list) {
-		/* Iterate through AMP controllers */
-		if (hdev->dev_type != HCI_AMP)
-			continue;
-
-		/* Starting from second entry */
-		++i;
-
-		cl[i].id = hdev->id;
-		cl[i].type = hdev->amp_type;
-		cl[i].status = hdev->amp_status;
+		if (hdev->dev_type == HCI_AMP) {
+			cl[i].id = hdev->id;
+			cl[i].type = hdev->amp_type;
+			cl[i].status = hdev->amp_status;
+			i++;
+		}
 	}
 }
 
-- 
cgit 


From c25dfc610b983f74f05b3c12d9ad4ff4af6cd858 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 02:08:36 -0700
Subject: Bluetooth: Use random address if public address is not available

For single mode LE-only controllers, it is possible that they come
without a public address. If a public address is not available,
then use the random address for connection establishment and
scanning.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_conn.c | 4 ++++
 net/bluetooth/mgmt.c     | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 8b0d08fb6158..2a220a8c9869 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -59,6 +59,10 @@ static void hci_le_create_connection(struct hci_conn *conn)
 	cp.scan_window = __constant_cpu_to_le16(0x0030);
 	bacpy(&cp.peer_addr, &conn->dst);
 	cp.peer_addr_type = conn->dst_type;
+	if (bacmp(&hdev->bdaddr, BDADDR_ANY))
+		cp.own_address_type = ADDR_LE_DEV_PUBLIC;
+	else
+		cp.own_address_type = ADDR_LE_DEV_RANDOM;
 	cp.conn_interval_min = __constant_cpu_to_le16(0x0028);
 	cp.conn_interval_max = __constant_cpu_to_le16(0x0038);
 	cp.supervision_timeout = __constant_cpu_to_le16(0x002a);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 6e808d1d78f3..719672203d02 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -2911,6 +2911,10 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev,
 		param_cp.type = LE_SCAN_ACTIVE;
 		param_cp.interval = cpu_to_le16(DISCOV_LE_SCAN_INT);
 		param_cp.window = cpu_to_le16(DISCOV_LE_SCAN_WIN);
+		if (bacmp(&hdev->bdaddr, BDADDR_ANY))
+			param_cp.own_address_type = ADDR_LE_DEV_PUBLIC;
+		else
+			param_cp.own_address_type = ADDR_LE_DEV_RANDOM;
 		hci_req_add(&req, HCI_OP_LE_SET_SCAN_PARAM, sizeof(param_cp),
 			    &param_cp);
 
-- 
cgit 


From 6bfa687c19b7ab8adee03f0d43c197c2945dd869 Mon Sep 17 00:00:00 2001
From: Shawn Bohrer <sbohrer@rgmadvisors.com>
Date: Fri, 4 Oct 2013 14:24:53 -0500
Subject: sched/rt: Remove redundant nr_cpus_allowed test

In 76854c7e8f3f4172fef091e78d88b3b751463ac6 ("sched: Use
rt.nr_cpus_allowed to recover select_task_rq() cycles") an
optimization was added to select_task_rq_rt() that immediately
returns when p->nr_cpus_allowed == 1 at the beginning of the
function.

This makes the latter p->nr_cpus_allowed > 1 check redundant,
which can now be removed.

Signed-off-by: Shawn Bohrer <sbohrer@rgmadvisors.com>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Mike Galbraith <mgalbraith@suse.de>
Cc: tomk@rgmadvisors.com
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1380914693-24634-1-git-send-email-shawn.bohrer@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/rt.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index 01970c8e64df..ceebfba0a1dd 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -1213,8 +1213,7 @@ select_task_rq_rt(struct task_struct *p, int sd_flag, int flags)
 	 */
 	if (curr && unlikely(rt_task(curr)) &&
 	    (curr->nr_cpus_allowed < 2 ||
-	     curr->prio <= p->prio) &&
-	    (p->nr_cpus_allowed > 1)) {
+	     curr->prio <= p->prio)) {
 		int target = find_lowest_rq(p);
 
 		if (target != -1)
-- 
cgit 


From 38901f1c1cae241fd4e3c5e63fcc690b921734b1 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Fri, 4 Oct 2013 14:37:56 -0700
Subject: x86/iommu: Don't make AMD_GART depend on EXPERT and default y

The AMD_GART driver was made EXPERT/EMBEDDED a long time
ago to avoid unbootable 64bit systems with 32bit only devices.

This was before swiotlb was there, which does the job
of this fallback today. SWIOTLB is always on, so systems
should always boot.

The drawback is that every system has to compile that
driver in (it cannot be a module).

Also:
 - Newer AMD CPUs (the APUs) don't seem to have AMD_GART support
   at all anymore.

 - Newer AMD platforms have a much better real IOMMU

 - The AMD GART driver was never very good (lots of overhead,
   e.g. in flushing due to some workarounds) and it's doubtful it's
   really better than SWIOTLB.

 - On older K8 systems it didn't even work with all chipsets.

 - The 32bit device bounce buffer case should be rare/
   non performance critical these days anyways.

 - On non AMD systems it is not needed at all.

So drop the EXPERT dependency on AMD_GART and remove the
default y. The driver can be still compiled in, just
it's an explicit decision now, and people who don't want
it can unselect it.

I also clarified the description a bit.

This allows to save ~8K text on most modern x86-64 systems.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Borislav Petkov <bp@suse.de>
Link: http://lkml.kernel.org/r/1380922676-23007-1-git-send-email-andi@firstfloor.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/Kconfig | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index ee2fb9d37745..c9d2b81ea310 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -756,17 +756,16 @@ config DMI
 	  BIOS code.
 
 config GART_IOMMU
-	bool "GART IOMMU support" if EXPERT
-	default y
+	bool "Old AMD GART IOMMU support"
 	select SWIOTLB
 	depends on X86_64 && PCI && AMD_NB
 	---help---
 	  Support for full DMA access of devices with 32bit memory access only
 	  on systems with more than 3GB. This is usually needed for USB,
 	  sound, many IDE/SATA chipsets and some other devices.
-	  Provides a driver for the AMD Athlon64/Opteron/Turion/Sempron GART
-	  based hardware IOMMU and a software bounce buffer based IOMMU used
-	  on Intel systems and as fallback.
+	  Provides a driver for the older AMD Athlon64/Opteron/Turion/Sempron GART
+	  based hardware IOMMU.
+	  Newer systems typically have a better AMD IOMMU.
 	  The code is only active when needed (enough memory and limited
 	  device) unless CONFIG_IOMMU_DEBUG or iommu=force is specified
 	  too.
-- 
cgit 


From 8d4a54af47ce7a71fd049a942cb2ea0041b18ecb Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Fri, 4 Oct 2013 13:15:26 -0300
Subject: ARM: dts: imx53-qsb: SDHC3 is connected in 8-bit mode

SDHC3 is 8 bit-wide, so pass the bus-width property to reflect that.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx53-qsb.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/imx53-qsb.dts b/arch/arm/boot/dts/imx53-qsb.dts
index 94597c3c2eb6..b646ef1617d5 100644
--- a/arch/arm/boot/dts/imx53-qsb.dts
+++ b/arch/arm/boot/dts/imx53-qsb.dts
@@ -136,6 +136,7 @@
 	pinctrl-0 = <&pinctrl_esdhc3_1>;
 	cd-gpios = <&gpio3 11 0>;
 	wp-gpios = <&gpio3 12 0>;
+	bus-width = <8>;
 	status = "okay";
 };
 
-- 
cgit 


From 71686dda2b14e5afca013f7d61653ea155e1e390 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Fri, 4 Oct 2013 13:15:27 -0300
Subject: ARM: dts: imx53-qsb: SDHC1 does not have cd-gpios

SDHC1 does not have any GPIO for reading the card detection status, so
remove 'cd-gpios'.

After this change card detection works via the internal SD controller mechanism.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx53-qsb.dts | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/arm/boot/dts/imx53-qsb.dts b/arch/arm/boot/dts/imx53-qsb.dts
index b646ef1617d5..029ae42357fb 100644
--- a/arch/arm/boot/dts/imx53-qsb.dts
+++ b/arch/arm/boot/dts/imx53-qsb.dts
@@ -122,7 +122,6 @@
 &esdhc1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_esdhc1_1>;
-	cd-gpios = <&gpio3 13 0>;
 	status = "okay";
 };
 
@@ -153,7 +152,6 @@
 				MX53_PAD_PATA_DATA15__GPIO2_15    0x80000000
 				MX53_PAD_EIM_DA11__GPIO3_11       0x80000000
 				MX53_PAD_EIM_DA12__GPIO3_12       0x80000000
-				MX53_PAD_EIM_DA13__GPIO3_13       0x80000000
 				MX53_PAD_PATA_DA_0__GPIO7_6       0x80000000
 				MX53_PAD_PATA_DA_2__GPIO7_8	  0x80000000
 				MX53_PAD_GPIO_16__GPIO7_11        0x80000000
-- 
cgit 


From ecccab3c5f84f7377bd09c094faa8cafa48dc55d Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Fri, 4 Oct 2013 13:15:28 -0300
Subject: ARM: dts: imx53-qsb: Do not use GPIO1_8 as wakeup source

On the mx53qsb board with mc34708 PMIC, GPIO1_8 resets the system, so better not
to use it as a wakeup source.

Use GPIO 2_14 and 2_15 for wakeup sources instead.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx53-qsb.dts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx53-qsb.dts b/arch/arm/boot/dts/imx53-qsb.dts
index 029ae42357fb..91a5935a4aac 100644
--- a/arch/arm/boot/dts/imx53-qsb.dts
+++ b/arch/arm/boot/dts/imx53-qsb.dts
@@ -55,19 +55,20 @@
 			label = "Power Button";
 			gpios = <&gpio1 8 0>;
 			linux,code = <116>; /* KEY_POWER */
-			gpio-key,wakeup;
 		};
 
 		volume-up {
 			label = "Volume Up";
 			gpios = <&gpio2 14 0>;
 			linux,code = <115>; /* KEY_VOLUMEUP */
+			gpio-key,wakeup;
 		};
 
 		volume-down {
 			label = "Volume Down";
 			gpios = <&gpio2 15 0>;
 			linux,code = <114>; /* KEY_VOLUMEDOWN */
+			gpio-key,wakeup;
 		};
 	};
 
-- 
cgit 


From 1e191893f38e89796d948af0516b7e29594dab99 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 02:34:38 -0700
Subject: Bluetooth: Add HCI structure for LE advertising parameters command

Add the basic HCI structure for building the LE advertising parameters
command.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 9f8d1c1f0414..9b0e3f9aa1c3 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -1046,6 +1046,18 @@ struct hci_rp_le_read_local_features {
 
 #define HCI_OP_LE_SET_RANDOM_ADDR	0x2005
 
+#define HCI_OP_LE_SET_ADV_PARAM		0x2006
+struct hci_cp_le_set_adv_param {
+	__le16   min_interval;
+	__le16   max_interval;
+	__u8     type;
+	__u8     own_address_type;
+	__u8     direct_addr_type;
+	bdaddr_t direct_addr;
+	__u8     channel_map;
+	__u8     filter_policy;
+} __packed;
+
 #define HCI_OP_LE_READ_ADV_TX_POWER	0x2007
 struct hci_rp_le_read_adv_tx_power {
 	__u8	status;
-- 
cgit 


From 03d87419defc809261c4953e5b44f9e0c8f9029a Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 02:40:43 -0700
Subject: Bluetooth: Make it clear that disabling LE disables advertising

This is not a functional change, just change the code to make it easy
to understand that advertising gets disabled before LE support will
be turned off.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 719672203d02..e09ceff5979b 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1505,8 +1505,11 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 
 	hci_req_init(&req, hdev);
 
-	if (test_bit(HCI_ADVERTISING, &hdev->dev_flags) && !val)
-		hci_req_add(&req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(val), &val);
+	if (test_bit(HCI_ADVERTISING, &hdev->dev_flags) && !val) {
+		u8 adv = 0x00;
+
+		hci_req_add(&req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(adv), &adv);
+	}
 
 	hci_req_add(&req, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(hci_cp),
 		    &hci_cp);
-- 
cgit 


From bba3aa550f614b8abf6614f6696a095030ce2ff6 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 02:55:21 -0700
Subject: Bluetooth: Use helper functions for enabling/disabling advertising

The tasks of enabling and disabling advertising are required in many
cases. So refactor the actual HCI operations into two common helpers
to make the code simpler.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 33 ++++++++++++++++++++++-----------
 1 file changed, 22 insertions(+), 11 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index e09ceff5979b..83866848a215 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1411,6 +1411,20 @@ unlock:
 	return err;
 }
 
+static void enable_advertising(struct hci_request *req)
+{
+	u8 adv = 0x01;
+
+	hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(adv), &adv);
+}
+
+static void disable_advertising(struct hci_request *req)
+{
+	u8 adv = 0x00;
+
+	hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(adv), &adv);
+}
+
 static void le_enable_complete(struct hci_dev *hdev, u8 status)
 {
 	struct cmd_lookup match = { NULL, hdev };
@@ -1505,11 +1519,8 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 
 	hci_req_init(&req, hdev);
 
-	if (test_bit(HCI_ADVERTISING, &hdev->dev_flags) && !val) {
-		u8 adv = 0x00;
-
-		hci_req_add(&req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(adv), &adv);
-	}
+	if (test_bit(HCI_ADVERTISING, &hdev->dev_flags) && !val)
+		disable_advertising(&req);
 
 	hci_req_add(&req, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(hci_cp),
 		    &hci_cp);
@@ -3283,7 +3294,10 @@ static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data, u1
 
 	hci_req_init(&req, hdev);
 
-	hci_req_add(&req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(val), &val);
+	if (val)
+		enable_advertising(&req);
+	else
+		disable_advertising(&req);
 
 	err = hci_req_run(&req, set_advertising_complete);
 	if (err < 0)
@@ -3861,12 +3875,9 @@ static int powered_update_hci(struct hci_dev *hdev)
 		if (bacmp(&hdev->static_addr, BDADDR_ANY))
 			hci_req_add(&req, HCI_OP_LE_SET_RANDOM_ADDR, 6,
 				    &hdev->static_addr);
-	}
-
-	if (test_bit(HCI_ADVERTISING, &hdev->dev_flags)) {
-		u8 adv = 0x01;
 
-		hci_req_add(&req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(adv), &adv);
+		if (test_bit(HCI_ADVERTISING, &hdev->dev_flags))
+			enable_advertising(&req);
 	}
 
 	link_sec = test_bit(HCI_LINK_SECURITY, &hdev->dev_flags);
-- 
cgit 


From c2f5ebd2148860537762c8d0d687efed73c2c2d0 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 03:03:46 -0700
Subject: Bluetooth: Add constants for LE advertising types

Add constants for ADV_IND, ADV_DIRECT_IND, ADV_SCAN_IND and
ADV_NONCONN_IND advertising types.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 9b0e3f9aa1c3..3616ea794eb1 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -1046,6 +1046,11 @@ struct hci_rp_le_read_local_features {
 
 #define HCI_OP_LE_SET_RANDOM_ADDR	0x2005
 
+#define LE_ADV_IND			0x00
+#define LE_ADV_DIRECT_IND		0x01
+#define LE_ADV_SCAN_IND			0x02
+#define LE_ADV_NONCONN_IND		0x03
+
 #define HCI_OP_LE_SET_ADV_PARAM		0x2006
 struct hci_cp_le_set_adv_param {
 	__le16   min_interval;
-- 
cgit 


From b4faf30096c3deb618392a88feaa7674cd55c257 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 03:17:56 -0700
Subject: Bluetooth: Set LE advertising parameters before enabling it

The LE advertising parameters can only be modified when advertising
is disabled. So before enabling it, make sure the controller has all
the right parameters.

Right now all default values are used and thus this does no change
any existing behavior. One minor exception is that in case of single
mode LE-only controllers without a public address, now the random
address is used for advertising.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 22 ++++++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 83866848a215..b78a0eefe03e 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1413,16 +1413,30 @@ unlock:
 
 static void enable_advertising(struct hci_request *req)
 {
-	u8 adv = 0x01;
+	struct hci_dev *hdev = req->hdev;
+	struct hci_cp_le_set_adv_param cp;
+	u8 enable = 0x01;
+
+	memset(&cp, 0, sizeof(cp));
+	cp.min_interval = __constant_cpu_to_le16(0x0800);
+	cp.max_interval = __constant_cpu_to_le16(0x0800);
+	cp.type = LE_ADV_IND;
+	if (bacmp(&hdev->bdaddr, BDADDR_ANY))
+		cp.own_address_type = ADDR_LE_DEV_PUBLIC;
+	else
+		cp.own_address_type = ADDR_LE_DEV_RANDOM;
+	cp.channel_map = 0x07;
+
+	hci_req_add(req, HCI_OP_LE_SET_ADV_PARAM, sizeof(cp), &cp);
 
-	hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(adv), &adv);
+	hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable);
 }
 
 static void disable_advertising(struct hci_request *req)
 {
-	u8 adv = 0x00;
+	u8 enable = 0x00;
 
-	hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(adv), &adv);
+	hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable);
 }
 
 static void le_enable_complete(struct hci_dev *hdev, u8 status)
-- 
cgit 


From 5976e60811723220678ebdb2ea06fbb52fe900bd Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 04:08:14 -0700
Subject: Bluetooth: Use helper function for re-enabling advertising

When the all LE connections have been disconneted, then it is up to
the host to re-enable advertising at that point. To ensure that the
correct advertising parameters are used, force the usage of the
common helper to enable advertising.

The change just moves the manual enabling of advertising from the
event handler into the management core so that the helper can
be actually shared.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h |  1 +
 net/bluetooth/hci_event.c        | 36 +-----------------------------------
 net/bluetooth/mgmt.c             | 33 +++++++++++++++++++++++++++++++++
 3 files changed, 35 insertions(+), 35 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 82c397451261..869f6ad602d1 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1151,6 +1151,7 @@ int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
 int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
 bool mgmt_valid_hdev(struct hci_dev *hdev);
 int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent);
+void mgmt_reenable_advertising(struct hci_dev *hdev);
 
 /* HCI info for socket */
 #define hci_pi(sk) ((struct hci_pinfo *) sk)
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 6eaef6ed9522..224210ce82fc 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1796,40 +1796,6 @@ static u8 hci_to_mgmt_reason(u8 err)
 	}
 }
 
-static void adv_enable_complete(struct hci_dev *hdev, u8 status)
-{
-	BT_DBG("%s status %u", hdev->name, status);
-
-	/* Clear the advertising mgmt setting if we failed to re-enable it */
-	if (status) {
-		clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
-		mgmt_new_settings(hdev);
-	}
-}
-
-static void reenable_advertising(struct hci_dev *hdev)
-{
-	struct hci_request req;
-	u8 enable = 0x01;
-
-	if (hdev->conn_hash.le_num)
-		return;
-
-	if (!test_bit(HCI_ADVERTISING, &hdev->dev_flags))
-		return;
-
-	hci_req_init(&req, hdev);
-	hci_req_add(&req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable);
-
-	/* If this fails we have no option but to let user space know
-	 * that we've disabled advertising.
-	 */
-	if (hci_req_run(&req, adv_enable_complete) < 0) {
-		clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
-		mgmt_new_settings(hdev);
-	}
-}
-
 static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	struct hci_ev_disconn_complete *ev = (void *) skb->data;
@@ -1878,7 +1844,7 @@ static void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		 * is timed out due to Directed Advertising."
 		 */
 		if (type == LE_LINK)
-			reenable_advertising(hdev);
+			mgmt_reenable_advertising(hdev);
 	}
 
 unlock:
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index b78a0eefe03e..381faf600195 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4660,3 +4660,36 @@ int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
 	return mgmt_event(MGMT_EV_DEVICE_UNBLOCKED, hdev, &ev, sizeof(ev),
 			  cmd ? cmd->sk : NULL);
 }
+
+static void adv_enable_complete(struct hci_dev *hdev, u8 status)
+{
+	BT_DBG("%s status %u", hdev->name, status);
+
+	/* Clear the advertising mgmt setting if we failed to re-enable it */
+	if (status) {
+		clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
+		mgmt_new_settings(hdev);
+	}
+}
+
+void mgmt_reenable_advertising(struct hci_dev *hdev)
+{
+	struct hci_request req;
+
+	if (hdev->conn_hash.le_num)
+		return;
+
+	if (!test_bit(HCI_ADVERTISING, &hdev->dev_flags))
+		return;
+
+	hci_req_init(&req, hdev);
+	enable_advertising(&req);
+
+	/* If this fails we have no option but to let user space know
+	 * that we've disabled advertising.
+	 */
+	if (hci_req_run(&req, adv_enable_complete) < 0) {
+		clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
+		mgmt_new_settings(hdev);
+	}
+}
-- 
cgit 


From a6d811ed28f7c49e869b4076a00969c4028cda0d Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 04:11:12 -0700
Subject: Bluetooth: Remove no longer needed mgmt_new_settings() function

The mgmt_new_settings() function was only needed to handle the
error case when re-enabling advertising failed. Since that is
now handled internally inside the management core, this function
is not needed anymore. So just remove it.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h | 1 -
 net/bluetooth/mgmt.c             | 9 ++-------
 2 files changed, 2 insertions(+), 8 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 869f6ad602d1..30e0fbb92b0a 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1094,7 +1094,6 @@ void hci_sock_dev_event(struct hci_dev *hdev, int event);
 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
 int mgmt_index_added(struct hci_dev *hdev);
 int mgmt_index_removed(struct hci_dev *hdev);
-int mgmt_new_settings(struct hci_dev *hdev);
 int mgmt_set_powered_failed(struct hci_dev *hdev, int err);
 int mgmt_powered(struct hci_dev *hdev, u8 powered);
 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 381faf600195..dd48e2a88c50 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -890,11 +890,6 @@ static int new_settings(struct hci_dev *hdev, struct sock *skip)
 	return mgmt_event(MGMT_EV_NEW_SETTINGS, hdev, &ev, sizeof(ev), skip);
 }
 
-int mgmt_new_settings(struct hci_dev *hdev)
-{
-	return new_settings(hdev, NULL);
-}
-
 struct cmd_lookup {
 	struct sock *sk;
 	struct hci_dev *hdev;
@@ -4668,7 +4663,7 @@ static void adv_enable_complete(struct hci_dev *hdev, u8 status)
 	/* Clear the advertising mgmt setting if we failed to re-enable it */
 	if (status) {
 		clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
-		mgmt_new_settings(hdev);
+		new_settings(hdev, NULL);
 	}
 }
 
@@ -4690,6 +4685,6 @@ void mgmt_reenable_advertising(struct hci_dev *hdev)
 	 */
 	if (hci_req_run(&req, adv_enable_complete) < 0) {
 		clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
-		mgmt_new_settings(hdev);
+		new_settings(hdev, NULL);
 	}
 }
-- 
cgit 


From 616228a164d4366f82d983c4a70d8006d9fb43f2 Mon Sep 17 00:00:00 2001
From: Juergen Beisert <jbe@pengutronix.de>
Date: Mon, 30 Sep 2013 01:23:53 +0200
Subject: i2c: mxs: distinguish i.MX23 and i.MX28 based I2C controller

It seems the PIO mode does not work, or at least not like it works
on a i.MX28. Each short transfer needs about one second (without an
error message) but does not send anything on the I2C lines.

Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-mxs.c | 40 ++++++++++++++++++++++++++++++++++------
 1 file changed, 34 insertions(+), 6 deletions(-)

diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c
index f4a01675fa71..2cb0317b14fb 100644
--- a/drivers/i2c/busses/i2c-mxs.c
+++ b/drivers/i2c/busses/i2c-mxs.c
@@ -95,10 +95,17 @@
 #define MXS_CMD_I2C_READ	(MXS_I2C_CTRL0_SEND_NAK_ON_LAST | \
 				 MXS_I2C_CTRL0_MASTER_MODE)
 
+enum mxs_i2c_devtype {
+	MXS_I2C_UNKNOWN = 0,
+	MXS_I2C_V1,
+	MXS_I2C_V2,
+};
+
 /**
  * struct mxs_i2c_dev - per device, private MXS-I2C data
  *
  * @dev: driver model device node
+ * @dev_type: distinguish i.MX23/i.MX28 features
  * @regs: IO registers pointer
  * @cmd_complete: completion object for transaction wait
  * @cmd_err: error code for last transaction
@@ -106,6 +113,7 @@
  */
 struct mxs_i2c_dev {
 	struct device *dev;
+	enum mxs_i2c_devtype dev_type;
 	void __iomem *regs;
 	struct completion cmd_complete;
 	int cmd_err;
@@ -495,6 +503,7 @@ static int mxs_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg,
 	 * is set to 8 bytes, transfers shorter than 8 bytes are transfered
 	 * using PIO mode while longer transfers use DMA. The 8 byte border is
 	 * based on this empirical measurement and a lot of previous frobbing.
+	 * Note: this special feature only works on i.MX28 SoC
 	 */
 	i2c->cmd_err = 0;
 	if (0) {	/* disable PIO mode until a proper fix is made */
@@ -680,8 +689,28 @@ static int mxs_i2c_get_ofdata(struct mxs_i2c_dev *i2c)
 	return 0;
 }
 
+static struct platform_device_id mxs_i2c_devtype[] = {
+	{
+		.name = "imx23-i2c",
+		.driver_data = MXS_I2C_V1,
+	}, {
+		.name = "imx28-i2c",
+		.driver_data = MXS_I2C_V2,
+	}, { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(platform, mxs_i2c_devtype);
+
+static const struct of_device_id mxs_i2c_dt_ids[] = {
+	{ .compatible = "fsl,imx23-i2c", .data = &mxs_i2c_devtype[0], },
+	{ .compatible = "fsl,imx28-i2c", .data = &mxs_i2c_devtype[1], },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, mxs_i2c_dt_ids);
+
 static int mxs_i2c_probe(struct platform_device *pdev)
 {
+	const struct of_device_id *of_id =
+				of_match_device(mxs_i2c_dt_ids, &pdev->dev);
 	struct device *dev = &pdev->dev;
 	struct mxs_i2c_dev *i2c;
 	struct i2c_adapter *adap;
@@ -693,6 +722,11 @@ static int mxs_i2c_probe(struct platform_device *pdev)
 	if (!i2c)
 		return -ENOMEM;
 
+	if (of_id) {
+		const struct platform_device_id *device_id = of_id->data;
+		i2c->dev_type = device_id->driver_data;
+	}
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	irq = platform_get_irq(pdev, 0);
 
@@ -768,12 +802,6 @@ static int mxs_i2c_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static const struct of_device_id mxs_i2c_dt_ids[] = {
-	{ .compatible = "fsl,imx28-i2c", },
-	{ /* sentinel */ }
-};
-MODULE_DEVICE_TABLE(of, mxs_i2c_dt_ids);
-
 static struct platform_driver mxs_i2c_driver = {
 	.driver = {
 		   .name = DRIVER_NAME,
-- 
cgit 


From 29faeb388a1af5c2175e79ce52173c45a262924a Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Sun, 6 Oct 2013 14:02:13 +0200
Subject: i2c: mxs: Rework the PIO mode operation

Analyze and rework the PIO mode operation. The PIO mode operation
was unreliable on MX28, by analyzing the bus with LA, the checks
for when data were available or were to be sent were wrong.

The PIO WRITE has to be completely reworked as it multiple problems.
The MX23 datasheet helped here, see comments in the code for details.
The problems boil down to:
- RUN bit in CTRL0 must be set after DATA register was written
- The PIO transfer must be 4 bytes long tops, otherwise use
  clock stretching.
Both of these fixes are implemented.

The PIO READ operation can only be done for up to four bytes as
we are unable to read out the data from the DATA register fast
enough.

This patch also tries to document the investigation within the
code.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-mxs.c | 278 +++++++++++++++++++++++++++----------------
 1 file changed, 176 insertions(+), 102 deletions(-)

diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c
index 2cb0317b14fb..5deb88b1d77c 100644
--- a/drivers/i2c/busses/i2c-mxs.c
+++ b/drivers/i2c/busses/i2c-mxs.c
@@ -1,6 +1,7 @@
 /*
  * Freescale MXS I2C bus driver
  *
+ * Copyright (C) 2012-2013 Marek Vasut <marex@denx.de>
  * Copyright (C) 2011-2012 Wolfram Sang, Pengutronix e.K.
  *
  * based on a (non-working) driver which was:
@@ -64,6 +65,7 @@
 #define MXS_I2C_CTRL1_SLAVE_IRQ			0x01
 
 #define MXS_I2C_STAT		(0x50)
+#define MXS_I2C_STAT_GOT_A_NAK			0x10000000
 #define MXS_I2C_STAT_BUS_BUSY			0x00000800
 #define MXS_I2C_STAT_CLK_GEN_BUSY		0x00000400
 
@@ -299,48 +301,11 @@ write_init_pio_fail:
 	return -EINVAL;
 }
 
-static int mxs_i2c_pio_wait_dmareq(struct mxs_i2c_dev *i2c)
+static int mxs_i2c_pio_wait_xfer_end(struct mxs_i2c_dev *i2c)
 {
 	unsigned long timeout = jiffies + msecs_to_jiffies(1000);
 
-	while (!(readl(i2c->regs + MXS_I2C_DEBUG0) &
-		MXS_I2C_DEBUG0_DMAREQ)) {
-		if (time_after(jiffies, timeout))
-			return -ETIMEDOUT;
-		cond_resched();
-	}
-
-	return 0;
-}
-
-static int mxs_i2c_pio_wait_cplt(struct mxs_i2c_dev *i2c, int last)
-{
-	unsigned long timeout = jiffies + msecs_to_jiffies(1000);
-
-	/*
-	 * We do not use interrupts in the PIO mode. Due to the
-	 * maximum transfer length being 8 bytes in PIO mode, the
-	 * overhead of interrupt would be too large and this would
-	 * neglect the gain from using the PIO mode.
-	 */
-
-	while (!(readl(i2c->regs + MXS_I2C_CTRL1) &
-		MXS_I2C_CTRL1_DATA_ENGINE_CMPLT_IRQ)) {
-		if (time_after(jiffies, timeout))
-			return -ETIMEDOUT;
-		cond_resched();
-	}
-
-	writel(MXS_I2C_CTRL1_DATA_ENGINE_CMPLT_IRQ,
-		i2c->regs + MXS_I2C_CTRL1_CLR);
-
-	/*
-	 * When ending a transfer with a stop, we have to wait for the bus to
-	 * go idle before we report the transfer as completed. Otherwise the
-	 * start of the next transfer may race with the end of the current one.
-	 */
-	while (last && (readl(i2c->regs + MXS_I2C_STAT) &
-			(MXS_I2C_STAT_BUS_BUSY | MXS_I2C_STAT_CLK_GEN_BUSY))) {
+	while (readl(i2c->regs + MXS_I2C_CTRL0) & MXS_I2C_CTRL0_RUN) {
 		if (time_after(jiffies, timeout))
 			return -ETIMEDOUT;
 		cond_resched();
@@ -378,106 +343,208 @@ static void mxs_i2c_pio_trigger_cmd(struct mxs_i2c_dev *i2c, u32 cmd)
 	writel(reg, i2c->regs + MXS_I2C_CTRL0);
 }
 
+/*
+ * Start WRITE transaction on the I2C bus. By studying i.MX23 datasheet,
+ * CTRL0::PIO_MODE bit description clarifies the order in which the registers
+ * must be written during PIO mode operation. First, the CTRL0 register has
+ * to be programmed with all the necessary bits but the RUN bit. Then the
+ * payload has to be written into the DATA register. Finally, the transmission
+ * is executed by setting the RUN bit in CTRL0.
+ */
+static void mxs_i2c_pio_trigger_write_cmd(struct mxs_i2c_dev *i2c, u32 cmd,
+					  u32 data)
+{
+	writel(cmd, i2c->regs + MXS_I2C_CTRL0);
+	writel(data, i2c->regs + MXS_I2C_DATA);
+	writel(MXS_I2C_CTRL0_RUN, i2c->regs + MXS_I2C_CTRL0_SET);
+}
+
 static int mxs_i2c_pio_setup_xfer(struct i2c_adapter *adap,
 			struct i2c_msg *msg, uint32_t flags)
 {
 	struct mxs_i2c_dev *i2c = i2c_get_adapdata(adap);
 	uint32_t addr_data = msg->addr << 1;
 	uint32_t data = 0;
-	int i, shifts_left, ret;
+	int i, ret, xlen = 0, xmit = 0;
+	uint32_t start;
 
 	/* Mute IRQs coming from this block. */
 	writel(MXS_I2C_IRQ_MASK << 8, i2c->regs + MXS_I2C_CTRL1_CLR);
 
+	/*
+	 * MX23 idea:
+	 * - Enable CTRL0::PIO_MODE (1 << 24)
+	 * - Enable CTRL1::ACK_MODE (1 << 27)
+	 *
+	 * WARNING! The MX23 is broken in some way, even if it claims
+	 * to support PIO, when we try to transfer any amount of data
+	 * that is not aligned to 4 bytes, the DMA engine will have
+	 * bits in DEBUG1::DMA_BYTES_ENABLES still set even after the
+	 * transfer. This in turn will mess up the next transfer as
+	 * the block it emit one byte write onto the bus terminated
+	 * with a NAK+STOP. A possible workaround is to reset the IP
+	 * block after every PIO transmission, which might just work.
+	 *
+	 * NOTE: The CTRL0::PIO_MODE description is important, since
+	 * it outlines how the PIO mode is really supposed to work.
+	 */
+
 	if (msg->flags & I2C_M_RD) {
+		/*
+		 * PIO READ transfer:
+		 *
+		 * This transfer MUST be limited to 4 bytes maximum. It is not
+		 * possible to transfer more than four bytes via PIO, since we
+		 * can not in any way make sure we can read the data from the
+		 * DATA register fast enough. Besides, the RX FIFO is only four
+		 * bytes deep, thus we can only really read up to four bytes at
+		 * time. Finally, there is no bit indicating us that new data
+		 * arrived at the FIFO and can thus be fetched from the DATA
+		 * register.
+		 */
+		BUG_ON(msg->len > 4);
+
 		addr_data |= I2C_SMBUS_READ;
 
 		/* SELECT command. */
-		mxs_i2c_pio_trigger_cmd(i2c, MXS_CMD_I2C_SELECT);
-
-		ret = mxs_i2c_pio_wait_dmareq(i2c);
-		if (ret)
-			return ret;
-
-		writel(addr_data, i2c->regs + MXS_I2C_DATA);
-		writel(MXS_I2C_DEBUG0_DMAREQ, i2c->regs + MXS_I2C_DEBUG0_CLR);
-
-		ret = mxs_i2c_pio_wait_cplt(i2c, 0);
-		if (ret)
-			return ret;
+		mxs_i2c_pio_trigger_write_cmd(i2c, MXS_CMD_I2C_SELECT,
+					      addr_data);
 
-		if (mxs_i2c_pio_check_error_state(i2c))
+		ret = mxs_i2c_pio_wait_xfer_end(i2c);
+		if (ret) {
+			dev_err(i2c->dev,
+				"PIO: Failed to send SELECT command!\n");
 			goto cleanup;
+		}
 
 		/* READ command. */
 		mxs_i2c_pio_trigger_cmd(i2c,
 					MXS_CMD_I2C_READ | flags |
 					MXS_I2C_CTRL0_XFER_COUNT(msg->len));
 
+		ret = mxs_i2c_pio_wait_xfer_end(i2c);
+		if (ret) {
+			dev_err(i2c->dev,
+				"PIO: Failed to send SELECT command!\n");
+			goto cleanup;
+		}
+
+		data = readl(i2c->regs + MXS_I2C_DATA);
 		for (i = 0; i < msg->len; i++) {
-			if ((i & 3) == 0) {
-				ret = mxs_i2c_pio_wait_dmareq(i2c);
-				if (ret)
-					return ret;
-				data = readl(i2c->regs + MXS_I2C_DATA);
-				writel(MXS_I2C_DEBUG0_DMAREQ,
-				       i2c->regs + MXS_I2C_DEBUG0_CLR);
-			}
 			msg->buf[i] = data & 0xff;
 			data >>= 8;
 		}
 	} else {
+		/*
+		 * PIO WRITE transfer:
+		 *
+		 * The code below implements clock stretching to circumvent
+		 * the possibility of kernel not being able to supply data
+		 * fast enough. It is possible to transfer arbitrary amount
+		 * of data using PIO write.
+		 */
 		addr_data |= I2C_SMBUS_WRITE;
 
-		/* WRITE command. */
-		mxs_i2c_pio_trigger_cmd(i2c,
-					MXS_CMD_I2C_WRITE | flags |
-					MXS_I2C_CTRL0_XFER_COUNT(msg->len + 1));
-
 		/*
 		 * The LSB of data buffer is the first byte blasted across
 		 * the bus. Higher order bytes follow. Thus the following
 		 * filling schematic.
 		 */
+
 		data = addr_data << 24;
+
+		/* Start the transfer with START condition. */
+		start = MXS_I2C_CTRL0_PRE_SEND_START;
+
+		/* If the transfer is long, use clock stretching. */
+		if (msg->len > 3)
+			start |= MXS_I2C_CTRL0_RETAIN_CLOCK;
+
 		for (i = 0; i < msg->len; i++) {
 			data >>= 8;
 			data |= (msg->buf[i] << 24);
-			if ((i & 3) == 2) {
-				ret = mxs_i2c_pio_wait_dmareq(i2c);
-				if (ret)
-					return ret;
-				writel(data, i2c->regs + MXS_I2C_DATA);
-				writel(MXS_I2C_DEBUG0_DMAREQ,
-				       i2c->regs + MXS_I2C_DEBUG0_CLR);
+
+			xmit = 0;
+
+			/* This is the last transfer of the message. */
+			if (i + 1 == msg->len) {
+				/* Add optional STOP flag. */
+				start |= flags;
+				/* Remove RETAIN_CLOCK bit. */
+				start &= ~MXS_I2C_CTRL0_RETAIN_CLOCK;
+				xmit = 1;
 			}
-		}
 
-		shifts_left = 24 - (i & 3) * 8;
-		if (shifts_left) {
-			data >>= shifts_left;
-			ret = mxs_i2c_pio_wait_dmareq(i2c);
-			if (ret)
-				return ret;
-			writel(data, i2c->regs + MXS_I2C_DATA);
+			/* Four bytes are ready in the "data" variable. */
+			if ((i & 3) == 2)
+				xmit = 1;
+
+			/* Nothing interesting happened, continue stuffing. */
+			if (!xmit)
+				continue;
+
+			/*
+			 * Compute the size of the transfer and shift the
+			 * data accordingly.
+			 *
+			 * i = (4k + 0) .... xlen = 2
+			 * i = (4k + 1) .... xlen = 3
+			 * i = (4k + 2) .... xlen = 4
+			 * i = (4k + 3) .... xlen = 1
+			 */
+
+			if ((i % 4) == 3)
+				xlen = 1;
+			else
+				xlen = (i % 4) + 2;
+
+			data >>= (4 - xlen) * 8;
+
+			dev_dbg(i2c->dev,
+				"PIO: len=%i pos=%i total=%i [W%s%s%s]\n",
+				xlen, i, msg->len,
+				start & MXS_I2C_CTRL0_PRE_SEND_START ? "S" : "",
+				start & MXS_I2C_CTRL0_POST_SEND_STOP ? "E" : "",
+				start & MXS_I2C_CTRL0_RETAIN_CLOCK ? "C" : "");
+
 			writel(MXS_I2C_DEBUG0_DMAREQ,
 			       i2c->regs + MXS_I2C_DEBUG0_CLR);
+
+			mxs_i2c_pio_trigger_write_cmd(i2c,
+				start | MXS_I2C_CTRL0_MASTER_MODE |
+				MXS_I2C_CTRL0_DIRECTION |
+				MXS_I2C_CTRL0_XFER_COUNT(xlen), data);
+
+			/* The START condition is sent only once. */
+			start &= ~MXS_I2C_CTRL0_PRE_SEND_START;
+
+			/* Wait for the end of the transfer. */
+			ret = mxs_i2c_pio_wait_xfer_end(i2c);
+			if (ret) {
+				dev_err(i2c->dev,
+					"PIO: Failed to finish WRITE cmd!\n");
+				break;
+			}
+
+			/* Check NAK here. */
+			ret = readl(i2c->regs + MXS_I2C_STAT) &
+				    MXS_I2C_STAT_GOT_A_NAK;
+			if (ret) {
+				ret = -ENXIO;
+				goto cleanup;
+			}
 		}
 	}
 
-	ret = mxs_i2c_pio_wait_cplt(i2c, flags & MXS_I2C_CTRL0_POST_SEND_STOP);
-	if (ret)
-		return ret;
-
 	/* make sure we capture any occurred error into cmd_err */
-	mxs_i2c_pio_check_error_state(i2c);
+	ret = mxs_i2c_pio_check_error_state(i2c);
 
 cleanup:
 	/* Clear any dangling IRQs and re-enable interrupts. */
 	writel(MXS_I2C_IRQ_MASK, i2c->regs + MXS_I2C_CTRL1_CLR);
 	writel(MXS_I2C_IRQ_MASK << 8, i2c->regs + MXS_I2C_CTRL1_SET);
 
-	return 0;
+	return ret;
 }
 
 /*
@@ -487,8 +554,9 @@ static int mxs_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg,
 				int stop)
 {
 	struct mxs_i2c_dev *i2c = i2c_get_adapdata(adap);
-	int ret, err;
+	int ret;
 	int flags;
+	int use_pio = 0;
 
 	flags = stop ? MXS_I2C_CTRL0_POST_SEND_STOP : 0;
 
@@ -499,20 +567,25 @@ static int mxs_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg,
 		return -EINVAL;
 
 	/*
-	 * The current boundary to select between PIO/DMA transfer method
-	 * is set to 8 bytes, transfers shorter than 8 bytes are transfered
-	 * using PIO mode while longer transfers use DMA. The 8 byte border is
-	 * based on this empirical measurement and a lot of previous frobbing.
-	 * Note: this special feature only works on i.MX28 SoC
+	 * The MX28 I2C IP block can only do PIO READ for transfer of to up
+	 * 4 bytes of length. The write transfer is not limited as it can use
+	 * clock stretching to avoid FIFO underruns.
 	 */
+	if ((msg->flags & I2C_M_RD) && (msg->len <= 4))
+		use_pio = 1;
+	if (!(msg->flags & I2C_M_RD) && (msg->len < 7))
+		use_pio = 1;
+
+	/* Disable PIO on MX23. */
+	if (i2c->dev_type == MXS_I2C_V1)
+		use_pio = 0;
+
 	i2c->cmd_err = 0;
-	if (0) {	/* disable PIO mode until a proper fix is made */
+	if (use_pio) {
 		ret = mxs_i2c_pio_setup_xfer(adap, msg, flags);
-		if (ret) {
-			err = mxs_i2c_reset(i2c);
-			if (err)
-				return err;
-		}
+		/* No need to reset the block if NAK was received. */
+		if (ret && (ret != -ENXIO))
+			mxs_i2c_reset(i2c);
 	} else {
 		INIT_COMPLETION(i2c->cmd_complete);
 		ret = mxs_i2c_dma_setup_xfer(adap, msg, flags);
@@ -523,9 +596,11 @@ static int mxs_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg,
 						msecs_to_jiffies(1000));
 		if (ret == 0)
 			goto timeout;
+
+		ret = i2c->cmd_err;
 	}
 
-	if (i2c->cmd_err == -ENXIO) {
+	if (ret == -ENXIO) {
 		/*
 		 * If the transfer fails with a NAK from the slave the
 		 * controller halts until it gets told to return to idle state.
@@ -534,8 +609,6 @@ static int mxs_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg,
 		       i2c->regs + MXS_I2C_CTRL1_SET);
 	}
 
-	ret = i2c->cmd_err;
-
 	dev_dbg(i2c->dev, "Done with err=%d\n", ret);
 
 	return ret;
@@ -823,6 +896,7 @@ static void __exit mxs_i2c_exit(void)
 }
 module_exit(mxs_i2c_exit);
 
+MODULE_AUTHOR("Marek Vasut <marex@denx.de>");
 MODULE_AUTHOR("Wolfram Sang <w.sang@pengutronix.de>");
 MODULE_DESCRIPTION("MXS I2C Bus Driver");
 MODULE_LICENSE("GPL");
-- 
cgit 


From 19e221bed222bbcaa0436265028de3346df89024 Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Mon, 30 Sep 2013 01:23:55 +0200
Subject: i2c: mxs: Fix PIO mode on i.MX23

The i.MX23 I2C controller is also capable of PIO, but needs a little harder
push to behave. The controller needs to be reset after every PIO/DMA operation
for some reason, otherwise in rare cases, the controller can hang or emit
bytes onto the bus.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-mxs.c | 40 +++++++++++++++++++++++++++++-----------
 1 file changed, 29 insertions(+), 11 deletions(-)

diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c
index 5deb88b1d77c..0c74038b1eb8 100644
--- a/drivers/i2c/busses/i2c-mxs.c
+++ b/drivers/i2c/busses/i2c-mxs.c
@@ -35,10 +35,12 @@
 
 #define MXS_I2C_CTRL0		(0x00)
 #define MXS_I2C_CTRL0_SET	(0x04)
+#define MXS_I2C_CTRL0_CLR	(0x08)
 
 #define MXS_I2C_CTRL0_SFTRST			0x80000000
 #define MXS_I2C_CTRL0_RUN			0x20000000
 #define MXS_I2C_CTRL0_SEND_NAK_ON_LAST		0x02000000
+#define MXS_I2C_CTRL0_PIO_MODE			0x01000000
 #define MXS_I2C_CTRL0_RETAIN_CLOCK		0x00200000
 #define MXS_I2C_CTRL0_POST_SEND_STOP		0x00100000
 #define MXS_I2C_CTRL0_PRE_SEND_START		0x00080000
@@ -69,10 +71,9 @@
 #define MXS_I2C_STAT_BUS_BUSY			0x00000800
 #define MXS_I2C_STAT_CLK_GEN_BUSY		0x00000400
 
-#define MXS_I2C_DATA		(0xa0)
+#define MXS_I2C_DATA(i2c)	((i2c->dev_type == MXS_I2C_V1) ? 0x60 : 0xa0)
 
-#define MXS_I2C_DEBUG0		(0xb0)
-#define MXS_I2C_DEBUG0_CLR	(0xb8)
+#define MXS_I2C_DEBUG0_CLR(i2c)	((i2c->dev_type == MXS_I2C_V1) ? 0x78 : 0xb8)
 
 #define MXS_I2C_DEBUG0_DMAREQ	0x80000000
 
@@ -355,7 +356,11 @@ static void mxs_i2c_pio_trigger_write_cmd(struct mxs_i2c_dev *i2c, u32 cmd,
 					  u32 data)
 {
 	writel(cmd, i2c->regs + MXS_I2C_CTRL0);
-	writel(data, i2c->regs + MXS_I2C_DATA);
+
+	if (i2c->dev_type == MXS_I2C_V1)
+		writel(MXS_I2C_CTRL0_PIO_MODE, i2c->regs + MXS_I2C_CTRL0_SET);
+
+	writel(data, i2c->regs + MXS_I2C_DATA(i2c));
 	writel(MXS_I2C_CTRL0_RUN, i2c->regs + MXS_I2C_CTRL0_SET);
 }
 
@@ -388,7 +393,6 @@ static int mxs_i2c_pio_setup_xfer(struct i2c_adapter *adap,
 	 * NOTE: The CTRL0::PIO_MODE description is important, since
 	 * it outlines how the PIO mode is really supposed to work.
 	 */
-
 	if (msg->flags & I2C_M_RD) {
 		/*
 		 * PIO READ transfer:
@@ -429,7 +433,7 @@ static int mxs_i2c_pio_setup_xfer(struct i2c_adapter *adap,
 			goto cleanup;
 		}
 
-		data = readl(i2c->regs + MXS_I2C_DATA);
+		data = readl(i2c->regs + MXS_I2C_DATA(i2c));
 		for (i = 0; i < msg->len; i++) {
 			msg->buf[i] = data & 0xff;
 			data >>= 8;
@@ -508,7 +512,7 @@ static int mxs_i2c_pio_setup_xfer(struct i2c_adapter *adap,
 				start & MXS_I2C_CTRL0_RETAIN_CLOCK ? "C" : "");
 
 			writel(MXS_I2C_DEBUG0_DMAREQ,
-			       i2c->regs + MXS_I2C_DEBUG0_CLR);
+			       i2c->regs + MXS_I2C_DEBUG0_CLR(i2c));
 
 			mxs_i2c_pio_trigger_write_cmd(i2c,
 				start | MXS_I2C_CTRL0_MASTER_MODE |
@@ -544,6 +548,10 @@ cleanup:
 	writel(MXS_I2C_IRQ_MASK, i2c->regs + MXS_I2C_CTRL1_CLR);
 	writel(MXS_I2C_IRQ_MASK << 8, i2c->regs + MXS_I2C_CTRL1_SET);
 
+	/* Clear the PIO_MODE on i.MX23 */
+	if (i2c->dev_type == MXS_I2C_V1)
+		writel(MXS_I2C_CTRL0_PIO_MODE, i2c->regs + MXS_I2C_CTRL0_CLR);
+
 	return ret;
 }
 
@@ -576,10 +584,6 @@ static int mxs_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg,
 	if (!(msg->flags & I2C_M_RD) && (msg->len < 7))
 		use_pio = 1;
 
-	/* Disable PIO on MX23. */
-	if (i2c->dev_type == MXS_I2C_V1)
-		use_pio = 0;
-
 	i2c->cmd_err = 0;
 	if (use_pio) {
 		ret = mxs_i2c_pio_setup_xfer(adap, msg, flags);
@@ -609,6 +613,20 @@ static int mxs_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg,
 		       i2c->regs + MXS_I2C_CTRL1_SET);
 	}
 
+	/*
+	 * WARNING!
+	 * The i.MX23 is strange. After each and every operation, it's I2C IP
+	 * block must be reset, otherwise the IP block will misbehave. This can
+	 * be observed on the bus by the block sending out one single byte onto
+	 * the bus. In case such an error happens, bit 27 will be set in the
+	 * DEBUG0 register. This bit is not documented in the i.MX23 datasheet
+	 * and is marked as "TBD" instead. To reset this bit to a correct state,
+	 * reset the whole block. Since the block reset does not take long, do
+	 * reset the block after every transfer to play safe.
+	 */
+	if (i2c->dev_type == MXS_I2C_V1)
+		mxs_i2c_reset(i2c);
+
 	dev_dbg(i2c->dev, "Done with err=%d\n", ret);
 
 	return ret;
-- 
cgit 


From ced3c42c9fcba049ec9c76c8461ac194cafb20ba Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Sun, 6 Oct 2013 11:45:20 +0200
Subject: x86/iommu: Clean up the CONFIG_GART_IOMMU config option a bit

Improve the explanation of this config option.

Cc: Andi Kleen <ak@linux.intel.com>
Cc: Borislav Petkov <borislav.petkov@amd.com>
Link: http://lkml.kernel.org/n/tip-gUMmysvsbl3mccbyf6olmxqg@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/Kconfig | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index c9d2b81ea310..7081958a32fb 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -760,15 +760,21 @@ config GART_IOMMU
 	select SWIOTLB
 	depends on X86_64 && PCI && AMD_NB
 	---help---
-	  Support for full DMA access of devices with 32bit memory access only
-	  on systems with more than 3GB. This is usually needed for USB,
-	  sound, many IDE/SATA chipsets and some other devices.
-	  Provides a driver for the older AMD Athlon64/Opteron/Turion/Sempron GART
-	  based hardware IOMMU.
-	  Newer systems typically have a better AMD IOMMU.
-	  The code is only active when needed (enough memory and limited
-	  device) unless CONFIG_IOMMU_DEBUG or iommu=force is specified
-	  too.
+	  Provides a driver for older AMD Athlon64/Opteron/Turion/Sempron
+	  GART based hardware IOMMUs.
+
+	  The GART supports full DMA access for devices with 32-bit access
+	  limitations, on systems with more than 3 GB. This is usually needed
+	  for USB, sound, many IDE/SATA chipsets and some other devices.
+
+	  Newer systems typically have a modern AMD IOMMU, supported via
+	  the CONFIG_AMD_IOMMU=y config option.
+
+	  In normal configurations this driver is only active when needed:
+	  there's more than 3 GB of memory and the system contains a
+	  32-bit limited device.
+
+	  If unsure, say Y.
 
 config CALGARY_IOMMU
 	bool "IBM Calgary IOMMU support"
-- 
cgit 


From 1514b8928e5d8273920b26276cd9617b6dbc7760 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 08:25:01 -0700
Subject: Bluetooth: Remove mgmt_valid_hdev() helper function

The helper function mgmt_valid_hdev() is more obfuscating the code
then it makes it easier to read. So intead of this helper, use the
direct check for BR/EDR device type.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h |  1 -
 net/bluetooth/hci_core.c         |  4 ++--
 net/bluetooth/mgmt.c             | 24 ++++++++----------------
 3 files changed, 10 insertions(+), 19 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 30e0fbb92b0a..d80d4311ccb0 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1148,7 +1148,6 @@ int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
 int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
 int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
-bool mgmt_valid_hdev(struct hci_dev *hdev);
 int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent);
 void mgmt_reenable_advertising(struct hci_dev *hdev);
 
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index bf3c5b0c22b9..d9626aad7ade 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1254,7 +1254,7 @@ static int hci_dev_do_open(struct hci_dev *hdev)
 		hci_notify(hdev, HCI_DEV_UP);
 		if (!test_bit(HCI_SETUP, &hdev->dev_flags) &&
 		    !test_bit(HCI_USER_CHANNEL, &hdev->dev_flags) &&
-		    mgmt_valid_hdev(hdev)) {
+		    hdev->dev_type == HCI_BREDR) {
 			hci_dev_lock(hdev);
 			mgmt_powered(hdev, 1);
 			hci_dev_unlock(hdev);
@@ -1394,7 +1394,7 @@ static int hci_dev_do_close(struct hci_dev *hdev)
 	hdev->dev_flags &= ~HCI_PERSISTENT_MASK;
 
 	if (!test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags) &&
-	    mgmt_valid_hdev(hdev)) {
+	    hdev->dev_type == HCI_BREDR) {
 		hci_dev_lock(hdev);
 		mgmt_powered(hdev, 0);
 		hci_dev_unlock(hdev);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index dd48e2a88c50..9702079833fc 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -182,11 +182,6 @@ static u8 mgmt_status_table[] = {
 	MGMT_STATUS_CONNECT_FAILED,	/* MAC Connection Failed */
 };
 
-bool mgmt_valid_hdev(struct hci_dev *hdev)
-{
-	return hdev->dev_type == HCI_BREDR;
-}
-
 static u8 mgmt_status(u8 hci_status)
 {
 	if (hci_status < ARRAY_SIZE(mgmt_status_table))
@@ -322,10 +317,8 @@ static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data,
 
 	count = 0;
 	list_for_each_entry(d, &hci_dev_list, list) {
-		if (!mgmt_valid_hdev(d))
-			continue;
-
-		count++;
+		if (d->dev_type == HCI_BREDR)
+			count++;
 	}
 
 	rp_len = sizeof(*rp) + (2 * count);
@@ -343,11 +336,10 @@ static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data,
 		if (test_bit(HCI_USER_CHANNEL, &d->dev_flags))
 			continue;
 
-		if (!mgmt_valid_hdev(d))
-			continue;
-
-		rp->index[count++] = cpu_to_le16(d->id);
-		BT_DBG("Added hci%u", d->id);
+		if (d->dev_type == HCI_BREDR) {
+			rp->index[count++] = cpu_to_le16(d->id);
+			BT_DBG("Added hci%u", d->id);
+		}
 	}
 
 	rp->num_controllers = cpu_to_le16(count);
@@ -3790,7 +3782,7 @@ done:
 
 int mgmt_index_added(struct hci_dev *hdev)
 {
-	if (!mgmt_valid_hdev(hdev))
+	if (hdev->dev_type != HCI_BREDR)
 		return -ENOTSUPP;
 
 	return mgmt_event(MGMT_EV_INDEX_ADDED, hdev, NULL, 0, NULL);
@@ -3800,7 +3792,7 @@ int mgmt_index_removed(struct hci_dev *hdev)
 {
 	u8 status = MGMT_STATUS_INVALID_INDEX;
 
-	if (!mgmt_valid_hdev(hdev))
+	if (hdev->dev_type != HCI_BREDR)
 		return -ENOTSUPP;
 
 	mgmt_pending_foreach(0, hdev, cmd_status_rsp, &status);
-- 
cgit 


From 173e838c31fded558dd27293ae6253a495696ca0 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Wed, 4 Sep 2013 16:40:17 +0200
Subject: dma: pl330: Simplify irq allocation

Use devm_request_irq function.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/pl330.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index a562d24d20bf..58623dc474d1 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2923,7 +2923,7 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
 	amba_set_drvdata(adev, pdmac);
 
 	irq = adev->irq[0];
-	ret = request_irq(irq, pl330_irq_handler, 0,
+	ret = devm_request_irq(&adev->dev, irq, pl330_irq_handler, 0,
 			dev_name(&adev->dev), pi);
 	if (ret)
 		return ret;
@@ -2931,7 +2931,7 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
 	pi->pcfg.periph_id = adev->periphid;
 	ret = pl330_add(pi);
 	if (ret)
-		goto probe_err1;
+		return ret;
 
 	INIT_LIST_HEAD(&pdmac->desc_pool);
 	spin_lock_init(&pdmac->pool_lock);
@@ -3044,8 +3044,6 @@ probe_err3:
 	}
 probe_err2:
 	pl330_del(pi);
-probe_err1:
-	free_irq(irq, pi);
 
 	return ret;
 }
@@ -3055,7 +3053,6 @@ static int pl330_remove(struct amba_device *adev)
 	struct dma_pl330_dmac *pdmac = amba_get_drvdata(adev);
 	struct dma_pl330_chan *pch, *_p;
 	struct pl330_info *pi;
-	int irq;
 
 	if (!pdmac)
 		return 0;
@@ -3082,9 +3079,6 @@ static int pl330_remove(struct amba_device *adev)
 
 	pl330_del(pi);
 
-	irq = adev->irq[0];
-	free_irq(irq, pi);
-
 	return 0;
 }
 
-- 
cgit 


From 404ff6694aae1e89672f3d79d9a5a4f0ba6180f8 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 6 Sep 2013 17:16:22 +0530
Subject: dma: tegra20-apb-dma: Staticize tegra_dma_prep_dma_cyclic

tegra_dma_prep_dma_cyclic is referenced only in this file.
Make it static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/tegra20-apb-dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index 5d4986e5f5fa..67a6752bf863 100644
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -1018,7 +1018,7 @@ static struct dma_async_tx_descriptor *tegra_dma_prep_slave_sg(
 	return &dma_desc->txd;
 }
 
-struct dma_async_tx_descriptor *tegra_dma_prep_dma_cyclic(
+static struct dma_async_tx_descriptor *tegra_dma_prep_dma_cyclic(
 	struct dma_chan *dc, dma_addr_t buf_addr, size_t buf_len,
 	size_t period_len, enum dma_transfer_direction direction,
 	unsigned long flags, void *context)
-- 
cgit 


From e327e21fb2099119c21e0b9ff7ee0847c19a6735 Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Sun, 22 Sep 2013 16:50:00 +0200
Subject: dma: cppi41: pass around device instead of platform_device

Instead of passing around struct plafform_device, use struct device and
save one level of dereferencing. This affects the following functions:

 * cppi41_add_chans
 * purge_descs
 * deinit_cpii41
 * init_descs
 * init_cppi41
 * cppi_glue_infos

It's just a cosmetic cleanup that makes the code more readable.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/cppi41.c | 40 ++++++++++++++++++++--------------------
 1 file changed, 20 insertions(+), 20 deletions(-)

diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c
index 7c82b92f9b16..53d1d3115575 100644
--- a/drivers/dma/cppi41.c
+++ b/drivers/dma/cppi41.c
@@ -674,14 +674,14 @@ static void cleanup_chans(struct cppi41_dd *cdd)
 	}
 }
 
-static int cppi41_add_chans(struct platform_device *pdev, struct cppi41_dd *cdd)
+static int cppi41_add_chans(struct device *dev, struct cppi41_dd *cdd)
 {
 	struct cppi41_channel *cchan;
 	int i;
 	int ret;
 	u32 n_chans;
 
-	ret = of_property_read_u32(pdev->dev.of_node, "#dma-channels",
+	ret = of_property_read_u32(dev->of_node, "#dma-channels",
 			&n_chans);
 	if (ret)
 		return ret;
@@ -719,7 +719,7 @@ err:
 	return -ENOMEM;
 }
 
-static void purge_descs(struct platform_device *pdev, struct cppi41_dd *cdd)
+static void purge_descs(struct device *dev, struct cppi41_dd *cdd)
 {
 	unsigned int mem_decs;
 	int i;
@@ -731,7 +731,7 @@ static void purge_descs(struct platform_device *pdev, struct cppi41_dd *cdd)
 		cppi_writel(0, cdd->qmgr_mem + QMGR_MEMBASE(i));
 		cppi_writel(0, cdd->qmgr_mem + QMGR_MEMCTRL(i));
 
-		dma_free_coherent(&pdev->dev, mem_decs, cdd->cd,
+		dma_free_coherent(dev, mem_decs, cdd->cd,
 				cdd->descs_phys);
 	}
 }
@@ -741,19 +741,19 @@ static void disable_sched(struct cppi41_dd *cdd)
 	cppi_writel(0, cdd->sched_mem + DMA_SCHED_CTRL);
 }
 
-static void deinit_cpii41(struct platform_device *pdev, struct cppi41_dd *cdd)
+static void deinit_cpii41(struct device *dev, struct cppi41_dd *cdd)
 {
 	disable_sched(cdd);
 
-	purge_descs(pdev, cdd);
+	purge_descs(dev, cdd);
 
 	cppi_writel(0, cdd->qmgr_mem + QMGR_LRAM0_BASE);
 	cppi_writel(0, cdd->qmgr_mem + QMGR_LRAM0_BASE);
-	dma_free_coherent(&pdev->dev, QMGR_SCRATCH_SIZE, cdd->qmgr_scratch,
+	dma_free_coherent(dev, QMGR_SCRATCH_SIZE, cdd->qmgr_scratch,
 			cdd->scratch_phys);
 }
 
-static int init_descs(struct platform_device *pdev, struct cppi41_dd *cdd)
+static int init_descs(struct device *dev, struct cppi41_dd *cdd)
 {
 	unsigned int desc_size;
 	unsigned int mem_decs;
@@ -777,7 +777,7 @@ static int init_descs(struct platform_device *pdev, struct cppi41_dd *cdd)
 		reg |= ilog2(ALLOC_DECS_NUM) - 5;
 
 		BUILD_BUG_ON(DESCS_AREAS != 1);
-		cdd->cd = dma_alloc_coherent(&pdev->dev, mem_decs,
+		cdd->cd = dma_alloc_coherent(dev, mem_decs,
 				&cdd->descs_phys, GFP_KERNEL);
 		if (!cdd->cd)
 			return -ENOMEM;
@@ -813,12 +813,12 @@ static void init_sched(struct cppi41_dd *cdd)
 	cppi_writel(reg, cdd->sched_mem + DMA_SCHED_CTRL);
 }
 
-static int init_cppi41(struct platform_device *pdev, struct cppi41_dd *cdd)
+static int init_cppi41(struct device *dev, struct cppi41_dd *cdd)
 {
 	int ret;
 
 	BUILD_BUG_ON(QMGR_SCRATCH_SIZE > ((1 << 14) - 1));
-	cdd->qmgr_scratch = dma_alloc_coherent(&pdev->dev, QMGR_SCRATCH_SIZE,
+	cdd->qmgr_scratch = dma_alloc_coherent(dev, QMGR_SCRATCH_SIZE,
 			&cdd->scratch_phys, GFP_KERNEL);
 	if (!cdd->qmgr_scratch)
 		return -ENOMEM;
@@ -827,7 +827,7 @@ static int init_cppi41(struct platform_device *pdev, struct cppi41_dd *cdd)
 	cppi_writel(QMGR_SCRATCH_SIZE, cdd->qmgr_mem + QMGR_LRAM_SIZE);
 	cppi_writel(0, cdd->qmgr_mem + QMGR_LRAM1_BASE);
 
-	ret = init_descs(pdev, cdd);
+	ret = init_descs(dev, cdd);
 	if (ret)
 		goto err_td;
 
@@ -835,7 +835,7 @@ static int init_cppi41(struct platform_device *pdev, struct cppi41_dd *cdd)
 	init_sched(cdd);
 	return 0;
 err_td:
-	deinit_cpii41(pdev, cdd);
+	deinit_cpii41(dev, cdd);
 	return ret;
 }
 
@@ -914,11 +914,11 @@ static const struct of_device_id cppi41_dma_ids[] = {
 };
 MODULE_DEVICE_TABLE(of, cppi41_dma_ids);
 
-static const struct cppi_glue_infos *get_glue_info(struct platform_device *pdev)
+static const struct cppi_glue_infos *get_glue_info(struct device *dev)
 {
 	const struct of_device_id *of_id;
 
-	of_id = of_match_node(cppi41_dma_ids, pdev->dev.of_node);
+	of_id = of_match_node(cppi41_dma_ids, dev->of_node);
 	if (!of_id)
 		return NULL;
 	return of_id->data;
@@ -931,7 +931,7 @@ static int cppi41_dma_probe(struct platform_device *pdev)
 	int irq;
 	int ret;
 
-	glue_info = get_glue_info(pdev);
+	glue_info = get_glue_info(&pdev->dev);
 	if (!glue_info)
 		return -EINVAL;
 
@@ -970,11 +970,11 @@ static int cppi41_dma_probe(struct platform_device *pdev)
 	cdd->queues_tx = glue_info->queues_tx;
 	cdd->td_queue = glue_info->td_queue;
 
-	ret = init_cppi41(pdev, cdd);
+	ret = init_cppi41(&pdev->dev, cdd);
 	if (ret)
 		goto err_init_cppi;
 
-	ret = cppi41_add_chans(pdev, cdd);
+	ret = cppi41_add_chans(&pdev->dev, cdd);
 	if (ret)
 		goto err_chans;
 
@@ -1009,7 +1009,7 @@ err_irq:
 	cppi_writel(0, cdd->usbss_mem + USBSS_IRQ_CLEARR);
 	cleanup_chans(cdd);
 err_chans:
-	deinit_cpii41(pdev, cdd);
+	deinit_cpii41(&pdev->dev, cdd);
 err_init_cppi:
 	pm_runtime_put(&pdev->dev);
 err_get_sync:
@@ -1033,7 +1033,7 @@ static int cppi41_dma_remove(struct platform_device *pdev)
 	cppi_writel(0, cdd->usbss_mem + USBSS_IRQ_CLEARR);
 	free_irq(cdd->irq, cdd);
 	cleanup_chans(cdd);
-	deinit_cpii41(pdev, cdd);
+	deinit_cpii41(&pdev->dev, cdd);
 	iounmap(cdd->usbss_mem);
 	iounmap(cdd->ctrl_mem);
 	iounmap(cdd->sched_mem);
-- 
cgit 


From b46ce4d01e1c6052809b13340cc8e62d361f7306 Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Sun, 22 Sep 2013 16:50:01 +0200
Subject: dma: cppi41: s/deinit_cpii41/deinit_cppi41/

Fix a misspelled function name.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/cppi41.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c
index 53d1d3115575..5469a15c7f8f 100644
--- a/drivers/dma/cppi41.c
+++ b/drivers/dma/cppi41.c
@@ -741,7 +741,7 @@ static void disable_sched(struct cppi41_dd *cdd)
 	cppi_writel(0, cdd->sched_mem + DMA_SCHED_CTRL);
 }
 
-static void deinit_cpii41(struct device *dev, struct cppi41_dd *cdd)
+static void deinit_cppi41(struct device *dev, struct cppi41_dd *cdd)
 {
 	disable_sched(cdd);
 
@@ -835,7 +835,7 @@ static int init_cppi41(struct device *dev, struct cppi41_dd *cdd)
 	init_sched(cdd);
 	return 0;
 err_td:
-	deinit_cpii41(dev, cdd);
+	deinit_cppi41(dev, cdd);
 	return ret;
 }
 
@@ -1009,7 +1009,7 @@ err_irq:
 	cppi_writel(0, cdd->usbss_mem + USBSS_IRQ_CLEARR);
 	cleanup_chans(cdd);
 err_chans:
-	deinit_cpii41(&pdev->dev, cdd);
+	deinit_cppi41(&pdev->dev, cdd);
 err_init_cppi:
 	pm_runtime_put(&pdev->dev);
 err_get_sync:
@@ -1033,7 +1033,7 @@ static int cppi41_dma_remove(struct platform_device *pdev)
 	cppi_writel(0, cdd->usbss_mem + USBSS_IRQ_CLEARR);
 	free_irq(cdd->irq, cdd);
 	cleanup_chans(cdd);
-	deinit_cpii41(&pdev->dev, cdd);
+	deinit_cppi41(&pdev->dev, cdd);
 	iounmap(cdd->usbss_mem);
 	iounmap(cdd->ctrl_mem);
 	iounmap(cdd->sched_mem);
-- 
cgit 


From 717d818169e5d5672fb81bc7357e9bb265d1e228 Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Sun, 22 Sep 2013 16:50:02 +0200
Subject: dma: cppi41: add shortcut to &pdev->dev in cppi41_dma_probe()

Makes the code more readable and compact. No functional change.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/cppi41.c | 33 +++++++++++++++++----------------
 1 file changed, 17 insertions(+), 16 deletions(-)

diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c
index 5469a15c7f8f..d6897067e4cd 100644
--- a/drivers/dma/cppi41.c
+++ b/drivers/dma/cppi41.c
@@ -927,11 +927,12 @@ static const struct cppi_glue_infos *get_glue_info(struct device *dev)
 static int cppi41_dma_probe(struct platform_device *pdev)
 {
 	struct cppi41_dd *cdd;
+	struct device *dev = &pdev->dev;
 	const struct cppi_glue_infos *glue_info;
 	int irq;
 	int ret;
 
-	glue_info = get_glue_info(&pdev->dev);
+	glue_info = get_glue_info(dev);
 	if (!glue_info)
 		return -EINVAL;
 
@@ -946,14 +947,14 @@ static int cppi41_dma_probe(struct platform_device *pdev)
 	cdd->ddev.device_issue_pending = cppi41_dma_issue_pending;
 	cdd->ddev.device_prep_slave_sg = cppi41_dma_prep_slave_sg;
 	cdd->ddev.device_control = cppi41_dma_control;
-	cdd->ddev.dev = &pdev->dev;
+	cdd->ddev.dev = dev;
 	INIT_LIST_HEAD(&cdd->ddev.channels);
 	cpp41_dma_info.dma_cap = cdd->ddev.cap_mask;
 
-	cdd->usbss_mem = of_iomap(pdev->dev.of_node, 0);
-	cdd->ctrl_mem = of_iomap(pdev->dev.of_node, 1);
-	cdd->sched_mem = of_iomap(pdev->dev.of_node, 2);
-	cdd->qmgr_mem = of_iomap(pdev->dev.of_node, 3);
+	cdd->usbss_mem = of_iomap(dev->of_node, 0);
+	cdd->ctrl_mem = of_iomap(dev->of_node, 1);
+	cdd->sched_mem = of_iomap(dev->of_node, 2);
+	cdd->qmgr_mem = of_iomap(dev->of_node, 3);
 
 	if (!cdd->usbss_mem || !cdd->ctrl_mem || !cdd->sched_mem ||
 			!cdd->qmgr_mem) {
@@ -961,8 +962,8 @@ static int cppi41_dma_probe(struct platform_device *pdev)
 		goto err_remap;
 	}
 
-	pm_runtime_enable(&pdev->dev);
-	ret = pm_runtime_get_sync(&pdev->dev);
+	pm_runtime_enable(dev);
+	ret = pm_runtime_get_sync(dev);
 	if (ret)
 		goto err_get_sync;
 
@@ -970,22 +971,22 @@ static int cppi41_dma_probe(struct platform_device *pdev)
 	cdd->queues_tx = glue_info->queues_tx;
 	cdd->td_queue = glue_info->td_queue;
 
-	ret = init_cppi41(&pdev->dev, cdd);
+	ret = init_cppi41(dev, cdd);
 	if (ret)
 		goto err_init_cppi;
 
-	ret = cppi41_add_chans(&pdev->dev, cdd);
+	ret = cppi41_add_chans(dev, cdd);
 	if (ret)
 		goto err_chans;
 
-	irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
+	irq = irq_of_parse_and_map(dev->of_node, 0);
 	if (!irq)
 		goto err_irq;
 
 	cppi_writel(USBSS_IRQ_PD_COMP, cdd->usbss_mem + USBSS_IRQ_ENABLER);
 
 	ret = request_irq(irq, glue_info->isr, IRQF_SHARED,
-			dev_name(&pdev->dev), cdd);
+			dev_name(dev), cdd);
 	if (ret)
 		goto err_irq;
 	cdd->irq = irq;
@@ -994,7 +995,7 @@ static int cppi41_dma_probe(struct platform_device *pdev)
 	if (ret)
 		goto err_dma_reg;
 
-	ret = of_dma_controller_register(pdev->dev.of_node,
+	ret = of_dma_controller_register(dev->of_node,
 			cppi41_dma_xlate, &cpp41_dma_info);
 	if (ret)
 		goto err_of;
@@ -1009,11 +1010,11 @@ err_irq:
 	cppi_writel(0, cdd->usbss_mem + USBSS_IRQ_CLEARR);
 	cleanup_chans(cdd);
 err_chans:
-	deinit_cppi41(&pdev->dev, cdd);
+	deinit_cppi41(dev, cdd);
 err_init_cppi:
-	pm_runtime_put(&pdev->dev);
+	pm_runtime_put(dev);
 err_get_sync:
-	pm_runtime_disable(&pdev->dev);
+	pm_runtime_disable(dev);
 	iounmap(cdd->usbss_mem);
 	iounmap(cdd->ctrl_mem);
 	iounmap(cdd->sched_mem);
-- 
cgit 


From c95905a6a36858122afe1c334eba64499b39d7a2 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Wed, 18 Sep 2013 09:33:08 +0200
Subject: DMA: ste_dma40: use a power of 2 check

dst_addr_width and src_addr_width should be a power of 2. Currently the
driver checks, that they both lie between 1 and 8 and that they are equal
to 1 or even. This however leaves an invalid value of 6 uncaught. Use an
explicit power of 2 check instead.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
[typo fix on changelog]
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/ste_dma40.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 82d2b97ad942..3d5e4ee94f5f 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -14,6 +14,7 @@
 #include <linux/platform_device.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
+#include <linux/log2.h>
 #include <linux/pm.h>
 #include <linux/pm_runtime.h>
 #include <linux/err.h>
@@ -2796,8 +2797,8 @@ static int d40_set_runtime_config(struct dma_chan *chan,
 	    src_addr_width >  DMA_SLAVE_BUSWIDTH_8_BYTES   ||
 	    dst_addr_width <= DMA_SLAVE_BUSWIDTH_UNDEFINED ||
 	    dst_addr_width >  DMA_SLAVE_BUSWIDTH_8_BYTES   ||
-	    ((src_addr_width > 1) && (src_addr_width & 1)) ||
-	    ((dst_addr_width > 1) && (dst_addr_width & 1)))
+	    !is_power_of_2(src_addr_width) ||
+	    !is_power_of_2(dst_addr_width))
 		return -EINVAL;
 
 	cfg->src_info.data_width = src_addr_width;
-- 
cgit 


From f97b98d6d02eea5301f86422ace06e5b53979a0c Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Sun, 22 Sep 2013 16:50:04 +0200
Subject: dma: cppi41: add support for suspend and resume

This patch adds support for suspend/resume functionality to the cppi41
DMA driver. The steps necessary to make the system resume properly were
figured out by trial-and-error. The code as it stands now is the
minimum that has to be done to put the musb host system on an AM33xx
system into an operable state after resume.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/cppi41.c | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c
index d6897067e4cd..167c0223ae9e 100644
--- a/drivers/dma/cppi41.c
+++ b/drivers/dma/cppi41.c
@@ -1045,12 +1045,41 @@ static int cppi41_dma_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int cppi41_suspend(struct device *dev)
+{
+	struct cppi41_dd *cdd = dev_get_drvdata(dev);
+
+	cppi_writel(0, cdd->usbss_mem + USBSS_IRQ_CLEARR);
+	disable_sched(cdd);
+
+	return 0;
+}
+
+static int cppi41_resume(struct device *dev)
+{
+	struct cppi41_dd *cdd = dev_get_drvdata(dev);
+	int i;
+
+	for (i = 0; i < DESCS_AREAS; i++)
+		cppi_writel(cdd->descs_phys, cdd->qmgr_mem + QMGR_MEMBASE(i));
+
+	init_sched(cdd);
+	cppi_writel(USBSS_IRQ_PD_COMP, cdd->usbss_mem + USBSS_IRQ_ENABLER);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(cppi41_pm_ops, cppi41_suspend, cppi41_resume);
+
 static struct platform_driver cpp41_dma_driver = {
 	.probe  = cppi41_dma_probe,
 	.remove = cppi41_dma_remove,
 	.driver = {
 		.name = "cppi41-dma-engine",
 		.owner = THIS_MODULE,
+		.pm = &cppi41_pm_ops,
 		.of_match_table = of_match_ptr(cppi41_dma_ids),
 	},
 };
-- 
cgit 


From f358c289eec6dc3953706363e4515c800cec1d13 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 23 Sep 2013 14:07:20 +0800
Subject: dma: mmp_pdma: use list_move instead of list_del/list_add

Using list_move() instead of list_del() + list_add().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/mmp_pdma.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index ff8d7827f8cb..558994f38822 100644
--- a/drivers/dma/mmp_pdma.c
+++ b/drivers/dma/mmp_pdma.c
@@ -798,8 +798,7 @@ static void dma_do_tasklet(unsigned long data)
 		 * move the descriptors to a temporary list so we can drop
 		 * the lock during the entire cleanup operation
 		 */
-		list_del(&desc->node);
-		list_add(&desc->node, &chain_cleanup);
+		list_move(&desc->node, &chain_cleanup);
 
 		/*
 		 * Look for the first list entry which has the ENDIRQEN flag
-- 
cgit 


From e479556bfdd136669854292eb57ed0139d7253d5 Mon Sep 17 00:00:00 2001
From: Gu Zheng <guz.fnst@cn.fujitsu.com>
Date: Fri, 27 Sep 2013 18:08:30 +0800
Subject: f2fs: use rw_sem instead of fs_lock(locks mutex)

The fs_locks is used to block other ops(ex, recovery) when doing checkpoint.
And each other operate routine(besides checkpoint) needs to acquire a fs_lock,
there is a terrible problem here, if these are too many concurrency threads acquiring
fs_lock, so that they will block each other and may lead to some performance problem,
but this is not the phenomenon we want to see.
Though there are some optimization patches introduced to enhance the usage of fs_lock,
but the thorough solution is using a *rw_sem* to replace the fs_lock.
Checkpoint routine takes write_sem, and other ops take read_sem, so that we can block
other ops(ex, recovery) when doing checkpoint, and other ops will not disturb each other,
this can avoid the problem described above completely.
Because of the weakness of rw_sem, the above change may introduce a potential problem
that the checkpoint thread might get starved if other threads are intensively locking
the read semaphore for I/O.(Pointed out by Xu Jin)
In order to avoid this, a wait_list is introduced, the appending read semaphore ops
will be dropped into the wait_list if checkpoint thread is waiting for write semaphore,
and will be waked up when checkpoint thread gives up write semaphore.
Thanks to Kim's previous review and test, and will be very glad to see other guys'
performance tests about this patch.

V2:
  -fix the potential starvation problem.
  -use more suitable func name suggested by Xu Jin.

Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
[Jaegeuk Kim: adjust minor coding standard]
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/checkpoint.c |  7 +++---
 fs/f2fs/data.c       | 11 ++++-----
 fs/f2fs/f2fs.h       | 64 ++++++++++++++++++----------------------------------
 fs/f2fs/file.c       | 37 ++++++++++++++----------------
 fs/f2fs/inode.c      | 11 ++++-----
 fs/f2fs/namei.c      | 50 ++++++++++++++++++++--------------------
 fs/f2fs/recovery.c   |  7 +++---
 fs/f2fs/super.c      |  5 ++--
 fs/f2fs/xattr.c      |  7 ++----
 9 files changed, 83 insertions(+), 116 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index ca3944240db5..d80882763ffd 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -619,11 +619,10 @@ static void block_operations(struct f2fs_sb_info *sbi)
 	blk_start_plug(&plug);
 
 retry_flush_dents:
-	mutex_lock_all(sbi);
-
+	f2fs_lock_all(sbi);
 	/* write all the dirty dentry pages */
 	if (get_pages(sbi, F2FS_DIRTY_DENTS)) {
-		mutex_unlock_all(sbi);
+		f2fs_unlock_all(sbi);
 		sync_dirty_dir_inodes(sbi);
 		goto retry_flush_dents;
 	}
@@ -646,7 +645,7 @@ retry_flush_nodes:
 static void unblock_operations(struct f2fs_sb_info *sbi)
 {
 	mutex_unlock(&sbi->node_write);
-	mutex_unlock_all(sbi);
+	f2fs_unlock_all(sbi);
 }
 
 static void do_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 941f9b9ca3a5..2535d3b1a763 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -560,9 +560,9 @@ write:
 		inode_dec_dirty_dents(inode);
 		err = do_write_data_page(page);
 	} else {
-		int ilock = mutex_lock_op(sbi);
+		f2fs_lock_op(sbi);
 		err = do_write_data_page(page);
-		mutex_unlock_op(sbi, ilock);
+		f2fs_unlock_op(sbi);
 		need_balance_fs = true;
 	}
 	if (err == -ENOENT)
@@ -641,7 +641,6 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping,
 	pgoff_t index = ((unsigned long long) pos) >> PAGE_CACHE_SHIFT;
 	struct dnode_of_data dn;
 	int err = 0;
-	int ilock;
 
 	f2fs_balance_fs(sbi);
 repeat:
@@ -650,7 +649,7 @@ repeat:
 		return -ENOMEM;
 	*pagep = page;
 
-	ilock = mutex_lock_op(sbi);
+	f2fs_lock_op(sbi);
 
 	set_new_dnode(&dn, inode, NULL, NULL, 0);
 	err = get_dnode_of_data(&dn, index, ALLOC_NODE);
@@ -664,7 +663,7 @@ repeat:
 	if (err)
 		goto err;
 
-	mutex_unlock_op(sbi, ilock);
+	f2fs_unlock_op(sbi);
 
 	if ((len == PAGE_CACHE_SIZE) || PageUptodate(page))
 		return 0;
@@ -700,7 +699,7 @@ out:
 	return 0;
 
 err:
-	mutex_unlock_op(sbi, ilock);
+	f2fs_unlock_op(sbi);
 	f2fs_put_page(page, 1);
 	return err;
 }
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 7fd99d8bd2ff..a955a59dfdbe 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -18,6 +18,8 @@
 #include <linux/crc32.h>
 #include <linux/magic.h>
 #include <linux/kobject.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
 
 /*
  * For mount options
@@ -317,14 +319,6 @@ enum count_type {
 	NR_COUNT_TYPE,
 };
 
-/*
- * Uses as sbi->fs_lock[NR_GLOBAL_LOCKS].
- * The checkpoint procedure blocks all the locks in this fs_lock array.
- * Some FS operations grab free locks, and if there is no free lock,
- * then wait to grab a lock in a round-robin manner.
- */
-#define NR_GLOBAL_LOCKS	8
-
 /*
  * The below are the page types of bios used in submti_bio().
  * The available types are:
@@ -365,10 +359,10 @@ struct f2fs_sb_info {
 	struct f2fs_checkpoint *ckpt;		/* raw checkpoint pointer */
 	struct inode *meta_inode;		/* cache meta blocks */
 	struct mutex cp_mutex;			/* checkpoint procedure lock */
-	struct mutex fs_lock[NR_GLOBAL_LOCKS];	/* blocking FS operations */
+	struct rw_semaphore cp_rwsem;		/* blocking FS operations */
+	wait_queue_head_t cp_wait;		/* checkpoint wait queue */
 	struct mutex node_write;		/* locking node writes */
 	struct mutex writepages;		/* mutex for writepages() */
-	unsigned char next_lock_num;		/* round-robin global locks */
 	int por_doing;				/* recovery is doing or not */
 	int on_build_free_nids;			/* build_free_nids is doing */
 
@@ -520,48 +514,34 @@ static inline void clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
 	cp->ckpt_flags = cpu_to_le32(ckpt_flags);
 }
 
-static inline void mutex_lock_all(struct f2fs_sb_info *sbi)
+static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
 {
-	int i;
-
-	for (i = 0; i < NR_GLOBAL_LOCKS; i++) {
-		/*
-		 * This is the only time we take multiple fs_lock[]
-		 * instances; the order is immaterial since we
-		 * always hold cp_mutex, which serializes multiple
-		 * such operations.
-		 */
-		mutex_lock_nest_lock(&sbi->fs_lock[i], &sbi->cp_mutex);
-	}
+	/*
+	 * If the checkpoint thread is waiting for cp_rwsem, add cuurent task
+	 * into wait list to avoid the checkpoint thread starvation
+	 */
+	while (!list_empty(&sbi->cp_rwsem.wait_list))
+		wait_event_interruptible(sbi->cp_wait,
+				list_empty(&sbi->cp_rwsem.wait_list));
+	down_read(&sbi->cp_rwsem);
 }
 
-static inline void mutex_unlock_all(struct f2fs_sb_info *sbi)
+static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
 {
-	int i = 0;
-	for (; i < NR_GLOBAL_LOCKS; i++)
-		mutex_unlock(&sbi->fs_lock[i]);
+	up_read(&sbi->cp_rwsem);
 }
 
-static inline int mutex_lock_op(struct f2fs_sb_info *sbi)
+static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
 {
-	unsigned char next_lock;
-	int i = 0;
-
-	for (; i < NR_GLOBAL_LOCKS; i++)
-		if (mutex_trylock(&sbi->fs_lock[i]))
-			return i;
-
-	next_lock = sbi->next_lock_num++ % NR_GLOBAL_LOCKS;
-	mutex_lock(&sbi->fs_lock[next_lock]);
-	return next_lock;
+	down_write_nest_lock(&sbi->cp_rwsem, &sbi->cp_mutex);
 }
 
-static inline void mutex_unlock_op(struct f2fs_sb_info *sbi, int ilock)
+static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
 {
-	if (ilock < 0)
-		return;
-	BUG_ON(ilock >= NR_GLOBAL_LOCKS);
-	mutex_unlock(&sbi->fs_lock[ilock]);
+	up_write(&sbi->cp_rwsem);
+
+	/* wake up all tasks blocked by checkpoint */
+	wake_up_all(&sbi->cp_wait);
 }
 
 /*
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 02c906971cc6..c80faa2fff39 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -35,18 +35,18 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
 	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
 	block_t old_blk_addr;
 	struct dnode_of_data dn;
-	int err, ilock;
+	int err;
 
 	f2fs_balance_fs(sbi);
 
 	sb_start_pagefault(inode->i_sb);
 
 	/* block allocation */
-	ilock = mutex_lock_op(sbi);
+	f2fs_lock_op(sbi);
 	set_new_dnode(&dn, inode, NULL, NULL, 0);
 	err = get_dnode_of_data(&dn, page->index, ALLOC_NODE);
 	if (err) {
-		mutex_unlock_op(sbi, ilock);
+		f2fs_unlock_op(sbi);
 		goto out;
 	}
 
@@ -56,12 +56,12 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
 		err = reserve_new_block(&dn);
 		if (err) {
 			f2fs_put_dnode(&dn);
-			mutex_unlock_op(sbi, ilock);
+			f2fs_unlock_op(sbi);
 			goto out;
 		}
 	}
 	f2fs_put_dnode(&dn);
-	mutex_unlock_op(sbi, ilock);
+	f2fs_unlock_op(sbi);
 
 	file_update_time(vma->vm_file);
 	lock_page(page);
@@ -270,7 +270,7 @@ static int truncate_blocks(struct inode *inode, u64 from)
 	unsigned int blocksize = inode->i_sb->s_blocksize;
 	struct dnode_of_data dn;
 	pgoff_t free_from;
-	int count = 0, ilock = -1;
+	int count = 0;
 	int err;
 
 	trace_f2fs_truncate_blocks_enter(inode, from);
@@ -278,13 +278,13 @@ static int truncate_blocks(struct inode *inode, u64 from)
 	free_from = (pgoff_t)
 			((from + blocksize - 1) >> (sbi->log_blocksize));
 
-	ilock = mutex_lock_op(sbi);
+	f2fs_lock_op(sbi);
 	set_new_dnode(&dn, inode, NULL, NULL, 0);
 	err = get_dnode_of_data(&dn, free_from, LOOKUP_NODE);
 	if (err) {
 		if (err == -ENOENT)
 			goto free_next;
-		mutex_unlock_op(sbi, ilock);
+		f2fs_unlock_op(sbi);
 		trace_f2fs_truncate_blocks_exit(inode, err);
 		return err;
 	}
@@ -305,7 +305,7 @@ static int truncate_blocks(struct inode *inode, u64 from)
 	f2fs_put_dnode(&dn);
 free_next:
 	err = truncate_inode_blocks(inode, free_from);
-	mutex_unlock_op(sbi, ilock);
+	f2fs_unlock_op(sbi);
 
 	/* lastly zero out the first data page */
 	truncate_partial_data_page(inode, from);
@@ -416,16 +416,15 @@ static void fill_zero(struct inode *inode, pgoff_t index,
 {
 	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
 	struct page *page;
-	int ilock;
 
 	if (!len)
 		return;
 
 	f2fs_balance_fs(sbi);
 
-	ilock = mutex_lock_op(sbi);
+	f2fs_lock_op(sbi);
 	page = get_new_data_page(inode, NULL, index, false);
-	mutex_unlock_op(sbi, ilock);
+	f2fs_unlock_op(sbi);
 
 	if (!IS_ERR(page)) {
 		wait_on_page_writeback(page);
@@ -484,7 +483,6 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len, int mode)
 			struct address_space *mapping = inode->i_mapping;
 			loff_t blk_start, blk_end;
 			struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
-			int ilock;
 
 			f2fs_balance_fs(sbi);
 
@@ -493,9 +491,9 @@ static int punch_hole(struct inode *inode, loff_t offset, loff_t len, int mode)
 			truncate_inode_pages_range(mapping, blk_start,
 					blk_end - 1);
 
-			ilock = mutex_lock_op(sbi);
+			f2fs_lock_op(sbi);
 			ret = truncate_hole(inode, pg_start, pg_end);
-			mutex_unlock_op(sbi, ilock);
+			f2fs_unlock_op(sbi);
 		}
 	}
 
@@ -529,13 +527,12 @@ static int expand_inode_data(struct inode *inode, loff_t offset,
 
 	for (index = pg_start; index <= pg_end; index++) {
 		struct dnode_of_data dn;
-		int ilock;
 
-		ilock = mutex_lock_op(sbi);
+		f2fs_lock_op(sbi);
 		set_new_dnode(&dn, inode, NULL, NULL, 0);
 		ret = get_dnode_of_data(&dn, index, ALLOC_NODE);
 		if (ret) {
-			mutex_unlock_op(sbi, ilock);
+			f2fs_unlock_op(sbi);
 			break;
 		}
 
@@ -543,12 +540,12 @@ static int expand_inode_data(struct inode *inode, loff_t offset,
 			ret = reserve_new_block(&dn);
 			if (ret) {
 				f2fs_put_dnode(&dn);
-				mutex_unlock_op(sbi, ilock);
+				f2fs_unlock_op(sbi);
 				break;
 			}
 		}
 		f2fs_put_dnode(&dn);
-		mutex_unlock_op(sbi, ilock);
+		f2fs_unlock_op(sbi);
 
 		if (pg_start == pg_end)
 			new_size = offset + len;
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 9339cd292047..c8c058024af8 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -214,7 +214,7 @@ int update_inode_page(struct inode *inode)
 int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
 {
 	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
-	int ret, ilock;
+	int ret;
 
 	if (inode->i_ino == F2FS_NODE_INO(sbi) ||
 			inode->i_ino == F2FS_META_INO(sbi))
@@ -227,9 +227,9 @@ int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
 	 * We need to lock here to prevent from producing dirty node pages
 	 * during the urgent cleaning time when runing out of free sections.
 	 */
-	ilock = mutex_lock_op(sbi);
+	f2fs_lock_op(sbi);
 	ret = update_inode_page(inode);
-	mutex_unlock_op(sbi, ilock);
+	f2fs_unlock_op(sbi);
 
 	if (wbc)
 		f2fs_balance_fs(sbi);
@@ -243,7 +243,6 @@ int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
 void f2fs_evict_inode(struct inode *inode)
 {
 	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
-	int ilock;
 
 	trace_f2fs_evict_inode(inode);
 	truncate_inode_pages(&inode->i_data, 0);
@@ -265,9 +264,9 @@ void f2fs_evict_inode(struct inode *inode)
 	if (F2FS_HAS_BLOCKS(inode))
 		f2fs_truncate(inode);
 
-	ilock = mutex_lock_op(sbi);
+	f2fs_lock_op(sbi);
 	remove_inode_page(inode);
-	mutex_unlock_op(sbi, ilock);
+	f2fs_unlock_op(sbi);
 
 	sb_end_intwrite(inode->i_sb);
 no_delete:
diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 2a5359c990fc..29f73fdf958e 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -27,19 +27,19 @@ static struct inode *f2fs_new_inode(struct inode *dir, umode_t mode)
 	nid_t ino;
 	struct inode *inode;
 	bool nid_free = false;
-	int err, ilock;
+	int err;
 
 	inode = new_inode(sb);
 	if (!inode)
 		return ERR_PTR(-ENOMEM);
 
-	ilock = mutex_lock_op(sbi);
+	f2fs_lock_op(sbi);
 	if (!alloc_nid(sbi, &ino)) {
-		mutex_unlock_op(sbi, ilock);
+		f2fs_unlock_op(sbi);
 		err = -ENOSPC;
 		goto fail;
 	}
-	mutex_unlock_op(sbi, ilock);
+	f2fs_unlock_op(sbi);
 
 	inode->i_uid = current_fsuid();
 
@@ -115,7 +115,7 @@ static int f2fs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
 	struct f2fs_sb_info *sbi = F2FS_SB(sb);
 	struct inode *inode;
 	nid_t ino = 0;
-	int err, ilock;
+	int err;
 
 	f2fs_balance_fs(sbi);
 
@@ -131,9 +131,9 @@ static int f2fs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
 	inode->i_mapping->a_ops = &f2fs_dblock_aops;
 	ino = inode->i_ino;
 
-	ilock = mutex_lock_op(sbi);
+	f2fs_lock_op(sbi);
 	err = f2fs_add_link(dentry, inode);
-	mutex_unlock_op(sbi, ilock);
+	f2fs_unlock_op(sbi);
 	if (err)
 		goto out;
 
@@ -157,7 +157,7 @@ static int f2fs_link(struct dentry *old_dentry, struct inode *dir,
 	struct inode *inode = old_dentry->d_inode;
 	struct super_block *sb = dir->i_sb;
 	struct f2fs_sb_info *sbi = F2FS_SB(sb);
-	int err, ilock;
+	int err;
 
 	f2fs_balance_fs(sbi);
 
@@ -165,9 +165,9 @@ static int f2fs_link(struct dentry *old_dentry, struct inode *dir,
 	ihold(inode);
 
 	set_inode_flag(F2FS_I(inode), FI_INC_LINK);
-	ilock = mutex_lock_op(sbi);
+	f2fs_lock_op(sbi);
 	err = f2fs_add_link(dentry, inode);
-	mutex_unlock_op(sbi, ilock);
+	f2fs_unlock_op(sbi);
 	if (err)
 		goto out;
 
@@ -220,7 +220,6 @@ static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
 	struct f2fs_dir_entry *de;
 	struct page *page;
 	int err = -ENOENT;
-	int ilock;
 
 	trace_f2fs_unlink_enter(dir, dentry);
 	f2fs_balance_fs(sbi);
@@ -236,9 +235,9 @@ static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
 		goto fail;
 	}
 
-	ilock = mutex_lock_op(sbi);
+	f2fs_lock_op(sbi);
 	f2fs_delete_entry(de, page, inode);
-	mutex_unlock_op(sbi, ilock);
+	f2fs_unlock_op(sbi);
 
 	/* In order to evict this inode,  we set it dirty */
 	mark_inode_dirty(inode);
@@ -254,7 +253,7 @@ static int f2fs_symlink(struct inode *dir, struct dentry *dentry,
 	struct f2fs_sb_info *sbi = F2FS_SB(sb);
 	struct inode *inode;
 	size_t symlen = strlen(symname) + 1;
-	int err, ilock;
+	int err;
 
 	f2fs_balance_fs(sbi);
 
@@ -265,9 +264,9 @@ static int f2fs_symlink(struct inode *dir, struct dentry *dentry,
 	inode->i_op = &f2fs_symlink_inode_operations;
 	inode->i_mapping->a_ops = &f2fs_dblock_aops;
 
-	ilock = mutex_lock_op(sbi);
+	f2fs_lock_op(sbi);
 	err = f2fs_add_link(dentry, inode);
-	mutex_unlock_op(sbi, ilock);
+	f2fs_unlock_op(sbi);
 	if (err)
 		goto out;
 
@@ -290,7 +289,7 @@ static int f2fs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 {
 	struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
 	struct inode *inode;
-	int err, ilock;
+	int err;
 
 	f2fs_balance_fs(sbi);
 
@@ -304,9 +303,9 @@ static int f2fs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 	mapping_set_gfp_mask(inode->i_mapping, GFP_F2FS_ZERO);
 
 	set_inode_flag(F2FS_I(inode), FI_INC_LINK);
-	ilock = mutex_lock_op(sbi);
+	f2fs_lock_op(sbi);
 	err = f2fs_add_link(dentry, inode);
-	mutex_unlock_op(sbi, ilock);
+	f2fs_unlock_op(sbi);
 	if (err)
 		goto out_fail;
 
@@ -342,7 +341,6 @@ static int f2fs_mknod(struct inode *dir, struct dentry *dentry,
 	struct f2fs_sb_info *sbi = F2FS_SB(sb);
 	struct inode *inode;
 	int err = 0;
-	int ilock;
 
 	if (!new_valid_dev(rdev))
 		return -EINVAL;
@@ -356,9 +354,9 @@ static int f2fs_mknod(struct inode *dir, struct dentry *dentry,
 	init_special_inode(inode, inode->i_mode, rdev);
 	inode->i_op = &f2fs_special_inode_operations;
 
-	ilock = mutex_lock_op(sbi);
+	f2fs_lock_op(sbi);
 	err = f2fs_add_link(dentry, inode);
-	mutex_unlock_op(sbi, ilock);
+	f2fs_unlock_op(sbi);
 	if (err)
 		goto out;
 
@@ -387,7 +385,7 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	struct f2fs_dir_entry *old_dir_entry = NULL;
 	struct f2fs_dir_entry *old_entry;
 	struct f2fs_dir_entry *new_entry;
-	int err = -ENOENT, ilock = -1;
+	int err = -ENOENT;
 
 	f2fs_balance_fs(sbi);
 
@@ -402,7 +400,7 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
 			goto out_old;
 	}
 
-	ilock = mutex_lock_op(sbi);
+	f2fs_lock_op(sbi);
 
 	if (new_inode) {
 
@@ -467,7 +465,7 @@ static int f2fs_rename(struct inode *old_dir, struct dentry *old_dentry,
 		update_inode_page(old_dir);
 	}
 
-	mutex_unlock_op(sbi, ilock);
+	f2fs_unlock_op(sbi);
 	return 0;
 
 put_out_dir:
@@ -477,7 +475,7 @@ out_dir:
 		kunmap(old_dir_page);
 		f2fs_put_page(old_dir_page, 0);
 	}
-	mutex_unlock_op(sbi, ilock);
+	f2fs_unlock_op(sbi);
 out_old:
 	kunmap(old_page);
 	f2fs_put_page(old_page, 0);
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index a15d122fdc50..353cf4f66c7b 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -292,7 +292,6 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
 	struct f2fs_summary sum;
 	struct node_info ni;
 	int err = 0, recovered = 0;
-	int ilock;
 
 	start = start_bidx_of_node(ofs_of_node(page), fi);
 	if (IS_INODE(page))
@@ -300,12 +299,12 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
 	else
 		end = start + ADDRS_PER_BLOCK;
 
-	ilock = mutex_lock_op(sbi);
+	f2fs_lock_op(sbi);
 	set_new_dnode(&dn, inode, NULL, NULL, 0);
 
 	err = get_dnode_of_data(&dn, start, ALLOC_NODE);
 	if (err) {
-		mutex_unlock_op(sbi, ilock);
+		f2fs_unlock_op(sbi);
 		return err;
 	}
 
@@ -356,7 +355,7 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
 	recover_node_page(sbi, dn.node_page, &sum, &ni, blkaddr);
 err:
 	f2fs_put_dnode(&dn);
-	mutex_unlock_op(sbi, ilock);
+	f2fs_unlock_op(sbi);
 
 	f2fs_msg(sbi->sb, KERN_NOTICE, "recover_data: ino = %lx, "
 			"recovered_data = %d blocks, err = %d",
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 13d0a0fe49dd..347d70049288 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -760,7 +760,6 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
 	struct buffer_head *raw_super_buf;
 	struct inode *root;
 	long err = -EINVAL;
-	int i;
 
 	/* allocate memory for f2fs-specific super block info */
 	sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL);
@@ -818,12 +817,12 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
 	mutex_init(&sbi->gc_mutex);
 	mutex_init(&sbi->writepages);
 	mutex_init(&sbi->cp_mutex);
-	for (i = 0; i < NR_GLOBAL_LOCKS; i++)
-		mutex_init(&sbi->fs_lock[i]);
 	mutex_init(&sbi->node_write);
 	sbi->por_doing = 0;
 	spin_lock_init(&sbi->stat_lock);
 	init_rwsem(&sbi->bio_sem);
+	init_rwsem(&sbi->cp_rwsem);
+	init_waitqueue_head(&sbi->cp_wait);
 	init_sb_info(sbi);
 
 	/* get an inode for meta space */
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index 3d900ea34e47..f685138dd496 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -584,16 +584,13 @@ int f2fs_setxattr(struct inode *inode, int name_index, const char *name,
 			const void *value, size_t value_len, struct page *ipage)
 {
 	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
-	int ilock;
 	int err;
 
 	f2fs_balance_fs(sbi);
 
-	ilock = mutex_lock_op(sbi);
-
+	f2fs_lock_op(sbi);
 	err = __f2fs_setxattr(inode, name_index, name, value, value_len, ipage);
-
-	mutex_unlock_op(sbi, ilock);
+	f2fs_unlock_op(sbi);
 
 	return err;
 }
-- 
cgit 


From 4058c5117d6d8a94002fb308615c7442ed3a3896 Mon Sep 17 00:00:00 2001
From: Kelly Anderson <kelly@xilka.com>
Date: Mon, 7 Oct 2013 11:36:20 +0900
Subject: f2fs: handle remount options correctly

The current f2fs code errors if the xattr or acl options are passed when
remounting.  This is important in a typical scenario where f2fs is mounted
as a "ro" root file-system by the boot loader and then the init process wants
to remount it "rw" with the "remount,rw" option.

Signed-off-by: Kelly Anderson <kelly@xilka.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/super.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 347d70049288..fde8e6aca9be 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -43,7 +43,9 @@ enum {
 	Opt_disable_roll_forward,
 	Opt_discard,
 	Opt_noheap,
+	Opt_user_xattr,
 	Opt_nouser_xattr,
+	Opt_acl,
 	Opt_noacl,
 	Opt_active_logs,
 	Opt_disable_ext_identify,
@@ -56,7 +58,9 @@ static match_table_t f2fs_tokens = {
 	{Opt_disable_roll_forward, "disable_roll_forward"},
 	{Opt_discard, "discard"},
 	{Opt_noheap, "no_heap"},
+	{Opt_user_xattr, "user_xattr"},
 	{Opt_nouser_xattr, "nouser_xattr"},
+	{Opt_acl, "acl"},
 	{Opt_noacl, "noacl"},
 	{Opt_active_logs, "active_logs=%u"},
 	{Opt_disable_ext_identify, "disable_ext_identify"},
@@ -237,6 +241,9 @@ static int parse_options(struct super_block *sb, char *options)
 			set_opt(sbi, NOHEAP);
 			break;
 #ifdef CONFIG_F2FS_FS_XATTR
+		case Opt_user_xattr:
+			set_opt(sbi, XATTR_USER);
+			break;
 		case Opt_nouser_xattr:
 			clear_opt(sbi, XATTR_USER);
 			break;
@@ -244,6 +251,10 @@ static int parse_options(struct super_block *sb, char *options)
 			set_opt(sbi, INLINE_XATTR);
 			break;
 #else
+		case Opt_user_xattr:
+			f2fs_msg(sb, KERN_INFO,
+				"user_xattr options not supported");
+			break;
 		case Opt_nouser_xattr:
 			f2fs_msg(sb, KERN_INFO,
 				"nouser_xattr options not supported");
@@ -254,10 +265,16 @@ static int parse_options(struct super_block *sb, char *options)
 			break;
 #endif
 #ifdef CONFIG_F2FS_FS_POSIX_ACL
+		case Opt_acl:
+			set_opt(sbi, POSIX_ACL);
+			break;
 		case Opt_noacl:
 			clear_opt(sbi, POSIX_ACL);
 			break;
 #else
+		case Opt_acl:
+			f2fs_msg(sb, KERN_INFO, "acl options not supported");
+			break;
 		case Opt_noacl:
 			f2fs_msg(sb, KERN_INFO, "noacl options not supported");
 			break;
-- 
cgit 


From 6570b4a991d6eff5290321d26b16c9954482e264 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Sun, 6 Oct 2013 22:22:24 +0300
Subject: staging: octeon-usb: merge cvmx-usb into octeon-hcd

cvmx-usb module provided Cavium "OS abstraction layer" for USB
functionality. To make this driver a proper Linux driver, we need to
refactor this layer out. By making all the code internal to the HCD
driver makes this task easier.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/Makefile     |    4 +-
 drivers/staging/octeon-usb/cvmx-usb.c   | 3186 ----------------------------
 drivers/staging/octeon-usb/cvmx-usb.h   |  521 -----
 drivers/staging/octeon-usb/octeon-hcd.c | 3417 ++++++++++++++++++++++++++++++-
 4 files changed, 3417 insertions(+), 3711 deletions(-)
 delete mode 100644 drivers/staging/octeon-usb/cvmx-usb.c
 delete mode 100644 drivers/staging/octeon-usb/cvmx-usb.h

diff --git a/drivers/staging/octeon-usb/Makefile b/drivers/staging/octeon-usb/Makefile
index 89df1ad8be30..5588be395f2a 100644
--- a/drivers/staging/octeon-usb/Makefile
+++ b/drivers/staging/octeon-usb/Makefile
@@ -1,3 +1 @@
-obj-${CONFIG_OCTEON_USB} := octeon-usb.o
-octeon-usb-y := octeon-hcd.o
-octeon-usb-y += cvmx-usb.o
+obj-${CONFIG_OCTEON_USB} := octeon-hcd.o
diff --git a/drivers/staging/octeon-usb/cvmx-usb.c b/drivers/staging/octeon-usb/cvmx-usb.c
deleted file mode 100644
index 910a657b6292..000000000000
--- a/drivers/staging/octeon-usb/cvmx-usb.c
+++ /dev/null
@@ -1,3186 +0,0 @@
-/***********************license start***************
- * Copyright (c) 2003-2010  Cavium Networks (support@cavium.com). All rights
- * reserved.
- *
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *
- *   * Redistributions in binary form must reproduce the above
- *     copyright notice, this list of conditions and the following
- *     disclaimer in the documentation and/or other materials provided
- *     with the distribution.
-
- *   * Neither the name of Cavium Networks nor the names of
- *     its contributors may be used to endorse or promote products
- *     derived from this software without specific prior written
- *     permission.
-
- * This Software, including technical data, may be subject to U.S. export
- * control laws, including the U.S. Export Administration Act and its associated
- * regulations, and may be subject to export or import  regulations in other
- * countries.
-
- * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
- * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR
- * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
- * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION
- * OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
- * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
- * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
- * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
- * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE  RISK ARISING OUT OF USE OR
- * PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
- ***********************license end**************************************/
-
-
-/**
- * @file
- *
- * "cvmx-usb.c" defines a set of low level USB functions to help
- * developers create Octeon USB drivers for various operating
- * systems. These functions provide a generic API to the Octeon
- * USB blocks, hiding the internal hardware specific
- * operations.
- */
-#include <linux/delay.h>
-#include <asm/octeon/cvmx.h>
-#include <asm/octeon/octeon.h>
-#include <asm/octeon/cvmx-sysinfo.h>
-#include "cvmx-usbnx-defs.h"
-#include "cvmx-usbcx-defs.h"
-#include "cvmx-usb.h"
-#include <asm/octeon/cvmx-helper.h>
-#include <asm/octeon/cvmx-helper-board.h>
-
-/* Normal prefetch that use the pref instruction. */
-#define CVMX_PREFETCH(address, offset) asm volatile ("pref %[type], %[off](%[rbase])" : : [rbase] "d" (address), [off] "I" (offset), [type] "n" (0))
-
-/* Maximum number of times to retry failed transactions */
-#define MAX_RETRIES		3
-
-/* Maximum number of pipes that can be open at once */
-#define MAX_PIPES		32
-
-/* Maximum number of outstanding transactions across all pipes */
-#define MAX_TRANSACTIONS	256
-
-/* Maximum number of hardware channels supported by the USB block */
-#define MAX_CHANNELS		8
-
-/* The highest valid USB device address */
-#define MAX_USB_ADDRESS		127
-
-/* The highest valid USB endpoint number */
-#define MAX_USB_ENDPOINT	15
-
-/* The highest valid port number on a hub */
-#define MAX_USB_HUB_PORT	15
-
-/*
- * The low level hardware can transfer a maximum of this number of bytes in each
- * transfer. The field is 19 bits wide
- */
-#define MAX_TRANSFER_BYTES	((1<<19)-1)
-
-/*
- * The low level hardware can transfer a maximum of this number of packets in
- * each transfer. The field is 10 bits wide
- */
-#define MAX_TRANSFER_PACKETS	((1<<10)-1)
-
-enum cvmx_usb_transaction_flags {
-	__CVMX_USB_TRANSACTION_FLAGS_IN_USE = 1<<16,
-};
-
-enum {
-	USB_CLOCK_TYPE_REF_12,
-	USB_CLOCK_TYPE_REF_24,
-	USB_CLOCK_TYPE_REF_48,
-	USB_CLOCK_TYPE_CRYSTAL_12,
-};
-
-/**
- * Logical transactions may take numerous low level
- * transactions, especially when splits are concerned. This
- * enum represents all of the possible stages a transaction can
- * be in. Note that split completes are always even. This is so
- * the NAK handler can backup to the previous low level
- * transaction with a simple clearing of bit 0.
- */
-enum cvmx_usb_stage {
-	CVMX_USB_STAGE_NON_CONTROL,
-	CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE,
-	CVMX_USB_STAGE_SETUP,
-	CVMX_USB_STAGE_SETUP_SPLIT_COMPLETE,
-	CVMX_USB_STAGE_DATA,
-	CVMX_USB_STAGE_DATA_SPLIT_COMPLETE,
-	CVMX_USB_STAGE_STATUS,
-	CVMX_USB_STAGE_STATUS_SPLIT_COMPLETE,
-};
-
-/**
- * struct cvmx_usb_transaction - describes each pending USB transaction
- *				 regardless of type. These are linked together
- *				 to form a list of pending requests for a pipe.
- *
- * @prev:		Transaction before this one in the pipe.
- * @next:		Transaction after this one in the pipe.
- * @type:		Type of transaction, duplicated of the pipe.
- * @flags:		State flags for this transaction.
- * @buffer:		User's physical buffer address to read/write.
- * @buffer_length:	Size of the user's buffer in bytes.
- * @control_header:	For control transactions, physical address of the 8
- *			byte standard header.
- * @iso_start_frame:	For ISO transactions, the starting frame number.
- * @iso_number_packets:	For ISO transactions, the number of packets in the
- *			request.
- * @iso_packets:	For ISO transactions, the sub packets in the request.
- * @actual_bytes:	Actual bytes transfer for this transaction.
- * @stage:		For control transactions, the current stage.
- * @callback:		User's callback function when complete.
- * @callback_data:	User's data.
- */
-struct cvmx_usb_transaction {
-	struct cvmx_usb_transaction *prev;
-	struct cvmx_usb_transaction *next;
-	enum cvmx_usb_transfer type;
-	enum cvmx_usb_transaction_flags flags;
-	uint64_t buffer;
-	int buffer_length;
-	uint64_t control_header;
-	int iso_start_frame;
-	int iso_number_packets;
-	struct cvmx_usb_iso_packet *iso_packets;
-	int xfersize;
-	int pktcnt;
-	int retries;
-	int actual_bytes;
-	enum cvmx_usb_stage stage;
-	cvmx_usb_callback_func_t callback;
-	void *callback_data;
-};
-
-/**
- * struct cvmx_usb_pipe - a pipe represents a virtual connection between Octeon
- *			  and some USB device. It contains a list of pending
- *			  request to the device.
- *
- * @prev:		Pipe before this one in the list
- * @next:		Pipe after this one in the list
- * @head:		The first pending transaction
- * @tail:		The last pending transaction
- * @interval:		For periodic pipes, the interval between packets in
- *			frames
- * @next_tx_frame:	The next frame this pipe is allowed to transmit on
- * @flags:		State flags for this pipe
- * @device_speed:	Speed of device connected to this pipe
- * @transfer_type:	Type of transaction supported by this pipe
- * @transfer_dir:	IN or OUT. Ignored for Control
- * @multi_count:	Max packet in a row for the device
- * @max_packet:		The device's maximum packet size in bytes
- * @device_addr:	USB device address at other end of pipe
- * @endpoint_num:	USB endpoint number at other end of pipe
- * @hub_device_addr:	Hub address this device is connected to
- * @hub_port:		Hub port this device is connected to
- * @pid_toggle:		This toggles between 0/1 on every packet send to track
- *			the data pid needed
- * @channel:		Hardware DMA channel for this pipe
- * @split_sc_frame:	The low order bits of the frame number the split
- *			complete should be sent on
- */
-struct cvmx_usb_pipe {
-	struct cvmx_usb_pipe *prev;
-	struct cvmx_usb_pipe *next;
-	struct cvmx_usb_transaction *head;
-	struct cvmx_usb_transaction *tail;
-	uint64_t interval;
-	uint64_t next_tx_frame;
-	enum cvmx_usb_pipe_flags flags;
-	enum cvmx_usb_speed device_speed;
-	enum cvmx_usb_transfer transfer_type;
-	enum cvmx_usb_direction transfer_dir;
-	int multi_count;
-	uint16_t max_packet;
-	uint8_t device_addr;
-	uint8_t endpoint_num;
-	uint8_t hub_device_addr;
-	uint8_t hub_port;
-	uint8_t pid_toggle;
-	uint8_t channel;
-	int8_t split_sc_frame;
-};
-
-/**
- * struct cvmx_usb_pipe_list
- *
- * @head: Head of the list, or NULL if empty.
- * @tail: Tail if the list, or NULL if empty.
- */
-struct cvmx_usb_pipe_list {
-	struct cvmx_usb_pipe *head;
-	struct cvmx_usb_pipe *tail;
-};
-
-struct cvmx_usb_tx_fifo {
-	struct {
-		int channel;
-		int size;
-		uint64_t address;
-	} entry[MAX_CHANNELS+1];
-	int head;
-	int tail;
-};
-
-/**
- * struct cvmx_usb_internal_state - the state of the USB block
- *
- * init_flags:		   Flags passed to initialize.
- * index:		   Which USB block this is for.
- * idle_hardware_channels: Bit set for every idle hardware channel.
- * usbcx_hprt:		   Stored port status so we don't need to read a CSR to
- *			   determine splits.
- * pipe_for_channel:	   Map channels to pipes.
- * free_transaction_head:  List of free transactions head.
- * free_transaction_tail:  List of free transactions tail.
- * pipe:		   Storage for pipes.
- * transaction:		   Storage for transactions.
- * callback:		   User global callbacks.
- * callback_data:	   User data for each callback.
- * indent:		   Used by debug output to indent functions.
- * port_status:		   Last port status used for change notification.
- * free_pipes:		   List of all pipes that are currently closed.
- * idle_pipes:		   List of open pipes that have no transactions.
- * active_pipes:	   Active pipes indexed by transfer type.
- * frame_number:	   Increments every SOF interrupt for time keeping.
- * active_split:	   Points to the current active split, or NULL.
- */
-struct cvmx_usb_internal_state {
-	int init_flags;
-	int index;
-	int idle_hardware_channels;
-	union cvmx_usbcx_hprt usbcx_hprt;
-	struct cvmx_usb_pipe *pipe_for_channel[MAX_CHANNELS];
-	struct cvmx_usb_transaction *free_transaction_head;
-	struct cvmx_usb_transaction *free_transaction_tail;
-	struct cvmx_usb_pipe pipe[MAX_PIPES];
-	struct cvmx_usb_transaction transaction[MAX_TRANSACTIONS];
-	cvmx_usb_callback_func_t callback[__CVMX_USB_CALLBACK_END];
-	void *callback_data[__CVMX_USB_CALLBACK_END];
-	int indent;
-	struct cvmx_usb_port_status port_status;
-	struct cvmx_usb_pipe_list free_pipes;
-	struct cvmx_usb_pipe_list idle_pipes;
-	struct cvmx_usb_pipe_list active_pipes[4];
-	uint64_t frame_number;
-	struct cvmx_usb_transaction *active_split;
-	struct cvmx_usb_tx_fifo periodic;
-	struct cvmx_usb_tx_fifo nonperiodic;
-};
-
-/* This macro spins on a field waiting for it to reach a value */
-#define CVMX_WAIT_FOR_FIELD32(address, type, field, op, value, timeout_usec)\
-	({int result;							    \
-	do {								    \
-		uint64_t done = cvmx_get_cycle() + (uint64_t)timeout_usec * \
-			octeon_get_clock_rate() / 1000000;		    \
-		type c;							    \
-		while (1) {						    \
-			c.u32 = __cvmx_usb_read_csr32(usb, address);	    \
-			if (c.s.field op (value)) {			    \
-				result = 0;				    \
-				break;					    \
-			} else if (cvmx_get_cycle() > done) {		    \
-				result = -1;				    \
-				break;					    \
-			} else						    \
-				cvmx_wait(100);				    \
-		}							    \
-	} while (0);							    \
-	result; })
-
-/*
- * This macro logically sets a single field in a CSR. It does the sequence
- * read, modify, and write
- */
-#define USB_SET_FIELD32(address, type, field, value)		\
-	do {							\
-		type c;						\
-		c.u32 = __cvmx_usb_read_csr32(usb, address);	\
-		c.s.field = value;				\
-		__cvmx_usb_write_csr32(usb, address, c.u32);	\
-	} while (0)
-
-/* Returns the IO address to push/pop stuff data from the FIFOs */
-#define USB_FIFO_ADDRESS(channel, usb_index) (CVMX_USBCX_GOTGCTL(usb_index) + ((channel)+1)*0x1000)
-
-static int octeon_usb_get_clock_type(void)
-{
-	switch (cvmx_sysinfo_get()->board_type) {
-	case CVMX_BOARD_TYPE_BBGW_REF:
-	case CVMX_BOARD_TYPE_LANAI2_A:
-	case CVMX_BOARD_TYPE_LANAI2_U:
-	case CVMX_BOARD_TYPE_LANAI2_G:
-	case CVMX_BOARD_TYPE_UBNT_E100:
-		return USB_CLOCK_TYPE_CRYSTAL_12;
-	}
-	return USB_CLOCK_TYPE_REF_48;
-}
-
-/**
- * Read a USB 32bit CSR. It performs the necessary address swizzle
- * for 32bit CSRs and logs the value in a readable format if
- * debugging is on.
- *
- * @usb:     USB block this access is for
- * @address: 64bit address to read
- *
- * Returns: Result of the read
- */
-static inline uint32_t __cvmx_usb_read_csr32(struct cvmx_usb_internal_state *usb,
-					     uint64_t address)
-{
-	uint32_t result = cvmx_read64_uint32(address ^ 4);
-	return result;
-}
-
-
-/**
- * Write a USB 32bit CSR. It performs the necessary address
- * swizzle for 32bit CSRs and logs the value in a readable format
- * if debugging is on.
- *
- * @usb:     USB block this access is for
- * @address: 64bit address to write
- * @value:   Value to write
- */
-static inline void __cvmx_usb_write_csr32(struct cvmx_usb_internal_state *usb,
-					  uint64_t address, uint32_t value)
-{
-	cvmx_write64_uint32(address ^ 4, value);
-	cvmx_read64_uint64(CVMX_USBNX_DMA0_INB_CHN0(usb->index));
-}
-
-
-/**
- * Read a USB 64bit CSR. It logs the value in a readable format if
- * debugging is on.
- *
- * @usb:     USB block this access is for
- * @address: 64bit address to read
- *
- * Returns: Result of the read
- */
-static inline uint64_t __cvmx_usb_read_csr64(struct cvmx_usb_internal_state *usb,
-					     uint64_t address)
-{
-	uint64_t result = cvmx_read64_uint64(address);
-	return result;
-}
-
-
-/**
- * Write a USB 64bit CSR. It logs the value in a readable format
- * if debugging is on.
- *
- * @usb:     USB block this access is for
- * @address: 64bit address to write
- * @value:   Value to write
- */
-static inline void __cvmx_usb_write_csr64(struct cvmx_usb_internal_state *usb,
-					  uint64_t address, uint64_t value)
-{
-	cvmx_write64_uint64(address, value);
-}
-
-/**
- * Return non zero if this pipe connects to a non HIGH speed
- * device through a high speed hub.
- *
- * @usb:    USB block this access is for
- * @pipe:   Pipe to check
- *
- * Returns: Non zero if we need to do split transactions
- */
-static inline int __cvmx_usb_pipe_needs_split(struct cvmx_usb_internal_state *usb, struct cvmx_usb_pipe *pipe)
-{
-	return ((pipe->device_speed != CVMX_USB_SPEED_HIGH) && (usb->usbcx_hprt.s.prtspd == CVMX_USB_SPEED_HIGH));
-}
-
-
-/**
- * Trivial utility function to return the correct PID for a pipe
- *
- * @pipe:   pipe to check
- *
- * Returns: PID for pipe
- */
-static inline int __cvmx_usb_get_data_pid(struct cvmx_usb_pipe *pipe)
-{
-	if (pipe->pid_toggle)
-		return 2; /* Data1 */
-	else
-		return 0; /* Data0 */
-}
-
-
-/**
- * Return the number of USB ports supported by this Octeon
- * chip. If the chip doesn't support USB, or is not supported
- * by this API, a zero will be returned. Most Octeon chips
- * support one usb port, but some support two ports.
- * cvmx_usb_initialize() must be called on independent
- * struct cvmx_usb_state.
- *
- * Returns: Number of port, zero if usb isn't supported
- */
-int cvmx_usb_get_num_ports(void)
-{
-	int arch_ports = 0;
-
-	if (OCTEON_IS_MODEL(OCTEON_CN56XX))
-		arch_ports = 1;
-	else if (OCTEON_IS_MODEL(OCTEON_CN52XX))
-		arch_ports = 2;
-	else if (OCTEON_IS_MODEL(OCTEON_CN50XX))
-		arch_ports = 1;
-	else if (OCTEON_IS_MODEL(OCTEON_CN31XX))
-		arch_ports = 1;
-	else if (OCTEON_IS_MODEL(OCTEON_CN30XX))
-		arch_ports = 1;
-	else
-		arch_ports = 0;
-
-	return arch_ports;
-}
-
-
-/**
- * Allocate a usb transaction for use
- *
- * @usb:	 USB device state populated by
- *		 cvmx_usb_initialize().
- *
- * Returns: Transaction or NULL
- */
-static inline struct cvmx_usb_transaction *__cvmx_usb_alloc_transaction(struct cvmx_usb_internal_state *usb)
-{
-	struct cvmx_usb_transaction *t;
-	t = usb->free_transaction_head;
-	if (t) {
-		usb->free_transaction_head = t->next;
-		if (!usb->free_transaction_head)
-			usb->free_transaction_tail = NULL;
-	}
-	if (t) {
-		memset(t, 0, sizeof(*t));
-		t->flags = __CVMX_USB_TRANSACTION_FLAGS_IN_USE;
-	}
-	return t;
-}
-
-
-/**
- * Free a usb transaction
- *
- * @usb:	 USB device state populated by
- *		 cvmx_usb_initialize().
- * @transaction:
- *		 Transaction to free
- */
-static inline void __cvmx_usb_free_transaction(struct cvmx_usb_internal_state *usb,
-					       struct cvmx_usb_transaction *transaction)
-{
-	transaction->flags = 0;
-	transaction->prev = NULL;
-	transaction->next = NULL;
-	if (usb->free_transaction_tail)
-		usb->free_transaction_tail->next = transaction;
-	else
-		usb->free_transaction_head = transaction;
-	usb->free_transaction_tail = transaction;
-}
-
-
-/**
- * Add a pipe to the tail of a list
- * @list:   List to add pipe to
- * @pipe:   Pipe to add
- */
-static inline void __cvmx_usb_append_pipe(struct cvmx_usb_pipe_list *list, struct cvmx_usb_pipe *pipe)
-{
-	pipe->next = NULL;
-	pipe->prev = list->tail;
-	if (list->tail)
-		list->tail->next = pipe;
-	else
-		list->head = pipe;
-	list->tail = pipe;
-}
-
-
-/**
- * Remove a pipe from a list
- * @list:   List to remove pipe from
- * @pipe:   Pipe to remove
- */
-static inline void __cvmx_usb_remove_pipe(struct cvmx_usb_pipe_list *list, struct cvmx_usb_pipe *pipe)
-{
-	if (list->head == pipe) {
-		list->head = pipe->next;
-		pipe->next = NULL;
-		if (list->head)
-			list->head->prev = NULL;
-		else
-			list->tail = NULL;
-	} else if (list->tail == pipe) {
-		list->tail = pipe->prev;
-		list->tail->next = NULL;
-		pipe->prev = NULL;
-	} else {
-		pipe->prev->next = pipe->next;
-		pipe->next->prev = pipe->prev;
-		pipe->prev = NULL;
-		pipe->next = NULL;
-	}
-}
-
-
-/**
- * Initialize a USB port for use. This must be called before any
- * other access to the Octeon USB port is made. The port starts
- * off in the disabled state.
- *
- * @state:	 Pointer to an empty struct cvmx_usb_state
- *		 that will be populated by the initialize call.
- *		 This structure is then passed to all other USB
- *		 functions.
- * @usb_port_number:
- *		 Which Octeon USB port to initialize.
- *
- * Returns: 0 or a negative error code.
- */
-int cvmx_usb_initialize(struct cvmx_usb_state *state, int usb_port_number)
-{
-	union cvmx_usbnx_clk_ctl usbn_clk_ctl;
-	union cvmx_usbnx_usbp_ctl_status usbn_usbp_ctl_status;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
-	enum cvmx_usb_initialize_flags flags = 0;
-
-	/* Make sure that state is large enough to store the internal state */
-	if (sizeof(*state) < sizeof(*usb))
-		return -EINVAL;
-	/* At first allow 0-1 for the usb port number */
-	if ((usb_port_number < 0) || (usb_port_number > 1))
-		return -EINVAL;
-	/* For all chips except 52XX there is only one port */
-	if (!OCTEON_IS_MODEL(OCTEON_CN52XX) && (usb_port_number > 0))
-		return -EINVAL;
-	/* Try to determine clock type automatically */
-	if (octeon_usb_get_clock_type() == USB_CLOCK_TYPE_CRYSTAL_12) {
-		/* Only 12 MHZ crystals are supported */
-		flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_XI;
-	} else {
-		flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_GND;
-
-		switch (octeon_usb_get_clock_type()) {
-		case USB_CLOCK_TYPE_REF_12:
-			flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_12MHZ;
-			break;
-		case USB_CLOCK_TYPE_REF_24:
-			flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_24MHZ;
-			break;
-		case USB_CLOCK_TYPE_REF_48:
-			flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_48MHZ;
-			break;
-		default:
-			return -EINVAL;
-			break;
-		}
-	}
-
-	memset(usb, 0, sizeof(*usb));
-	usb->init_flags = flags;
-
-	/* Initialize the USB state structure */
-	{
-		int i;
-		usb->index = usb_port_number;
-
-		/* Initialize the transaction double linked list */
-		usb->free_transaction_head = NULL;
-		usb->free_transaction_tail = NULL;
-		for (i = 0; i < MAX_TRANSACTIONS; i++)
-			__cvmx_usb_free_transaction(usb, usb->transaction + i);
-		for (i = 0; i < MAX_PIPES; i++)
-			__cvmx_usb_append_pipe(&usb->free_pipes, usb->pipe + i);
-	}
-
-	/*
-	 * Power On Reset and PHY Initialization
-	 *
-	 * 1. Wait for DCOK to assert (nothing to do)
-	 *
-	 * 2a. Write USBN0/1_CLK_CTL[POR] = 1 and
-	 *     USBN0/1_CLK_CTL[HRST,PRST,HCLK_RST] = 0
-	 */
-	usbn_clk_ctl.u64 = __cvmx_usb_read_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index));
-	usbn_clk_ctl.s.por = 1;
-	usbn_clk_ctl.s.hrst = 0;
-	usbn_clk_ctl.s.prst = 0;
-	usbn_clk_ctl.s.hclk_rst = 0;
-	usbn_clk_ctl.s.enable = 0;
-	/*
-	 * 2b. Select the USB reference clock/crystal parameters by writing
-	 *     appropriate values to USBN0/1_CLK_CTL[P_C_SEL, P_RTYPE, P_COM_ON]
-	 */
-	if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_GND) {
-		/*
-		 * The USB port uses 12/24/48MHz 2.5V board clock
-		 * source at USB_XO. USB_XI should be tied to GND.
-		 * Most Octeon evaluation boards require this setting
-		 */
-		if (OCTEON_IS_MODEL(OCTEON_CN3XXX)) {
-			/* From CN31XX,CN30XX manual */
-			usbn_clk_ctl.cn31xx.p_rclk  = 1;
-			usbn_clk_ctl.cn31xx.p_xenbn = 0;
-		} else if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN50XX))
-			/* From CN56XX,CN50XX manual */
-			usbn_clk_ctl.cn56xx.p_rtype = 2;
-		else
-			/* From CN52XX manual */
-			usbn_clk_ctl.cn52xx.p_rtype = 1;
-
-		switch (flags & CVMX_USB_INITIALIZE_FLAGS_CLOCK_MHZ_MASK) {
-		case CVMX_USB_INITIALIZE_FLAGS_CLOCK_12MHZ:
-			usbn_clk_ctl.s.p_c_sel = 0;
-			break;
-		case CVMX_USB_INITIALIZE_FLAGS_CLOCK_24MHZ:
-			usbn_clk_ctl.s.p_c_sel = 1;
-			break;
-		case CVMX_USB_INITIALIZE_FLAGS_CLOCK_48MHZ:
-			usbn_clk_ctl.s.p_c_sel = 2;
-			break;
-		}
-	} else {
-		/*
-		 * The USB port uses a 12MHz crystal as clock source
-		 * at USB_XO and USB_XI
-		 */
-		if (OCTEON_IS_MODEL(OCTEON_CN3XXX)) {
-			/* From CN31XX,CN30XX manual */
-			usbn_clk_ctl.cn31xx.p_rclk  = 1;
-			usbn_clk_ctl.cn31xx.p_xenbn = 1;
-		} else if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN50XX))
-			/* From CN56XX,CN50XX manual */
-			usbn_clk_ctl.cn56xx.p_rtype = 0;
-		else
-			/* From CN52XX manual */
-			usbn_clk_ctl.cn52xx.p_rtype = 0;
-
-		usbn_clk_ctl.s.p_c_sel = 0;
-	}
-	/*
-	 * 2c. Select the HCLK via writing USBN0/1_CLK_CTL[DIVIDE, DIVIDE2] and
-	 *     setting USBN0/1_CLK_CTL[ENABLE] = 1. Divide the core clock down
-	 *     such that USB is as close as possible to 125Mhz
-	 */
-	{
-		int divisor = (octeon_get_clock_rate()+125000000-1)/125000000;
-		/* Lower than 4 doesn't seem to work properly */
-		if (divisor < 4)
-			divisor = 4;
-		usbn_clk_ctl.s.divide = divisor;
-		usbn_clk_ctl.s.divide2 = 0;
-	}
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
-			       usbn_clk_ctl.u64);
-	/* 2d. Write USBN0/1_CLK_CTL[HCLK_RST] = 1 */
-	usbn_clk_ctl.s.hclk_rst = 1;
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
-			       usbn_clk_ctl.u64);
-	/* 2e.  Wait 64 core-clock cycles for HCLK to stabilize */
-	cvmx_wait(64);
-	/*
-	 * 3. Program the power-on reset field in the USBN clock-control
-	 *    register:
-	 *    USBN_CLK_CTL[POR] = 0
-	 */
-	usbn_clk_ctl.s.por = 0;
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
-			       usbn_clk_ctl.u64);
-	/* 4. Wait 1 ms for PHY clock to start */
-	mdelay(1);
-	/*
-	 * 5. Program the Reset input from automatic test equipment field in the
-	 *    USBP control and status register:
-	 *    USBN_USBP_CTL_STATUS[ATE_RESET] = 1
-	 */
-	usbn_usbp_ctl_status.u64 = __cvmx_usb_read_csr64(usb, CVMX_USBNX_USBP_CTL_STATUS(usb->index));
-	usbn_usbp_ctl_status.s.ate_reset = 1;
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_USBP_CTL_STATUS(usb->index),
-			       usbn_usbp_ctl_status.u64);
-	/* 6. Wait 10 cycles */
-	cvmx_wait(10);
-	/*
-	 * 7. Clear ATE_RESET field in the USBN clock-control register:
-	 *    USBN_USBP_CTL_STATUS[ATE_RESET] = 0
-	 */
-	usbn_usbp_ctl_status.s.ate_reset = 0;
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_USBP_CTL_STATUS(usb->index),
-			       usbn_usbp_ctl_status.u64);
-	/*
-	 * 8. Program the PHY reset field in the USBN clock-control register:
-	 *    USBN_CLK_CTL[PRST] = 1
-	 */
-	usbn_clk_ctl.s.prst = 1;
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
-			       usbn_clk_ctl.u64);
-	/*
-	 * 9. Program the USBP control and status register to select host or
-	 *    device mode. USBN_USBP_CTL_STATUS[HST_MODE] = 0 for host, = 1 for
-	 *    device
-	 */
-	usbn_usbp_ctl_status.s.hst_mode = 0;
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_USBP_CTL_STATUS(usb->index),
-			       usbn_usbp_ctl_status.u64);
-	/* 10. Wait 1 us */
-	udelay(1);
-	/*
-	 * 11. Program the hreset_n field in the USBN clock-control register:
-	 *     USBN_CLK_CTL[HRST] = 1
-	 */
-	usbn_clk_ctl.s.hrst = 1;
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
-			       usbn_clk_ctl.u64);
-	/* 12. Proceed to USB core initialization */
-	usbn_clk_ctl.s.enable = 1;
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
-			       usbn_clk_ctl.u64);
-	udelay(1);
-
-	/*
-	 * USB Core Initialization
-	 *
-	 * 1. Read USBC_GHWCFG1, USBC_GHWCFG2, USBC_GHWCFG3, USBC_GHWCFG4 to
-	 *    determine USB core configuration parameters.
-	 *
-	 *    Nothing needed
-	 *
-	 * 2. Program the following fields in the global AHB configuration
-	 *    register (USBC_GAHBCFG)
-	 *    DMA mode, USBC_GAHBCFG[DMAEn]: 1 = DMA mode, 0 = slave mode
-	 *    Burst length, USBC_GAHBCFG[HBSTLEN] = 0
-	 *    Nonperiodic TxFIFO empty level (slave mode only),
-	 *    USBC_GAHBCFG[NPTXFEMPLVL]
-	 *    Periodic TxFIFO empty level (slave mode only),
-	 *    USBC_GAHBCFG[PTXFEMPLVL]
-	 *    Global interrupt mask, USBC_GAHBCFG[GLBLINTRMSK] = 1
-	 */
-	{
-		union cvmx_usbcx_gahbcfg usbcx_gahbcfg;
-		/* Due to an errata, CN31XX doesn't support DMA */
-		if (OCTEON_IS_MODEL(OCTEON_CN31XX))
-			usb->init_flags |= CVMX_USB_INITIALIZE_FLAGS_NO_DMA;
-		usbcx_gahbcfg.u32 = 0;
-		usbcx_gahbcfg.s.dmaen = !(usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA);
-		if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)
-			/* Only use one channel with non DMA */
-			usb->idle_hardware_channels = 0x1;
-		else if (OCTEON_IS_MODEL(OCTEON_CN5XXX))
-			/* CN5XXX have an errata with channel 3 */
-			usb->idle_hardware_channels = 0xf7;
-		else
-			usb->idle_hardware_channels = 0xff;
-		usbcx_gahbcfg.s.hbstlen = 0;
-		usbcx_gahbcfg.s.nptxfemplvl = 1;
-		usbcx_gahbcfg.s.ptxfemplvl = 1;
-		usbcx_gahbcfg.s.glblintrmsk = 1;
-		__cvmx_usb_write_csr32(usb, CVMX_USBCX_GAHBCFG(usb->index),
-				       usbcx_gahbcfg.u32);
-	}
-	/*
-	 * 3. Program the following fields in USBC_GUSBCFG register.
-	 *    HS/FS timeout calibration, USBC_GUSBCFG[TOUTCAL] = 0
-	 *    ULPI DDR select, USBC_GUSBCFG[DDRSEL] = 0
-	 *    USB turnaround time, USBC_GUSBCFG[USBTRDTIM] = 0x5
-	 *    PHY low-power clock select, USBC_GUSBCFG[PHYLPWRCLKSEL] = 0
-	 */
-	{
-		union cvmx_usbcx_gusbcfg usbcx_gusbcfg;
-		usbcx_gusbcfg.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_GUSBCFG(usb->index));
-		usbcx_gusbcfg.s.toutcal = 0;
-		usbcx_gusbcfg.s.ddrsel = 0;
-		usbcx_gusbcfg.s.usbtrdtim = 0x5;
-		usbcx_gusbcfg.s.phylpwrclksel = 0;
-		__cvmx_usb_write_csr32(usb, CVMX_USBCX_GUSBCFG(usb->index),
-				       usbcx_gusbcfg.u32);
-	}
-	/*
-	 * 4. The software must unmask the following bits in the USBC_GINTMSK
-	 *    register.
-	 *    OTG interrupt mask, USBC_GINTMSK[OTGINTMSK] = 1
-	 *    Mode mismatch interrupt mask, USBC_GINTMSK[MODEMISMSK] = 1
-	 */
-	{
-		union cvmx_usbcx_gintmsk usbcx_gintmsk;
-		int channel;
-
-		usbcx_gintmsk.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_GINTMSK(usb->index));
-		usbcx_gintmsk.s.otgintmsk = 1;
-		usbcx_gintmsk.s.modemismsk = 1;
-		usbcx_gintmsk.s.hchintmsk = 1;
-		usbcx_gintmsk.s.sofmsk = 0;
-		/* We need RX FIFO interrupts if we don't have DMA */
-		if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)
-			usbcx_gintmsk.s.rxflvlmsk = 1;
-		__cvmx_usb_write_csr32(usb, CVMX_USBCX_GINTMSK(usb->index),
-				       usbcx_gintmsk.u32);
-
-		/*
-		 * Disable all channel interrupts. We'll enable them per channel
-		 * later.
-		 */
-		for (channel = 0; channel < 8; channel++)
-			__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCINTMSKX(channel, usb->index), 0);
-	}
-
-	{
-		/*
-		 * Host Port Initialization
-		 *
-		 * 1. Program the host-port interrupt-mask field to unmask,
-		 *    USBC_GINTMSK[PRTINT] = 1
-		 */
-		USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index), union cvmx_usbcx_gintmsk,
-				prtintmsk, 1);
-		USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index), union cvmx_usbcx_gintmsk,
-				disconnintmsk, 1);
-		/*
-		 * 2. Program the USBC_HCFG register to select full-speed host
-		 *    or high-speed host.
-		 */
-		{
-			union cvmx_usbcx_hcfg usbcx_hcfg;
-			usbcx_hcfg.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCFG(usb->index));
-			usbcx_hcfg.s.fslssupp = 0;
-			usbcx_hcfg.s.fslspclksel = 0;
-			__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCFG(usb->index), usbcx_hcfg.u32);
-		}
-		/*
-		 * 3. Program the port power bit to drive VBUS on the USB,
-		 *    USBC_HPRT[PRTPWR] = 1
-		 */
-		USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), union cvmx_usbcx_hprt, prtpwr, 1);
-
-		/*
-		 * Steps 4-15 from the manual are done later in the port enable
-		 */
-	}
-
-	return 0;
-}
-
-
-/**
- * Shutdown a USB port after a call to cvmx_usb_initialize().
- * The port should be disabled with all pipes closed when this
- * function is called.
- *
- * @state: USB device state populated by
- *	   cvmx_usb_initialize().
- *
- * Returns: 0 or a negative error code.
- */
-int cvmx_usb_shutdown(struct cvmx_usb_state *state)
-{
-	union cvmx_usbnx_clk_ctl usbn_clk_ctl;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
-
-	/* Make sure all pipes are closed */
-	if (usb->idle_pipes.head ||
-		usb->active_pipes[CVMX_USB_TRANSFER_ISOCHRONOUS].head ||
-		usb->active_pipes[CVMX_USB_TRANSFER_INTERRUPT].head ||
-		usb->active_pipes[CVMX_USB_TRANSFER_CONTROL].head ||
-		usb->active_pipes[CVMX_USB_TRANSFER_BULK].head)
-		return -EBUSY;
-
-	/* Disable the clocks and put them in power on reset */
-	usbn_clk_ctl.u64 = __cvmx_usb_read_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index));
-	usbn_clk_ctl.s.enable = 1;
-	usbn_clk_ctl.s.por = 1;
-	usbn_clk_ctl.s.hclk_rst = 1;
-	usbn_clk_ctl.s.prst = 0;
-	usbn_clk_ctl.s.hrst = 0;
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
-			       usbn_clk_ctl.u64);
-	return 0;
-}
-
-
-/**
- * Enable a USB port. After this call succeeds, the USB port is
- * online and servicing requests.
- *
- * @state: USB device state populated by
- *	   cvmx_usb_initialize().
- *
- * Returns: 0 or a negative error code.
- */
-int cvmx_usb_enable(struct cvmx_usb_state *state)
-{
-	union cvmx_usbcx_ghwcfg3 usbcx_ghwcfg3;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
-
-	usb->usbcx_hprt.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HPRT(usb->index));
-
-	/*
-	 * If the port is already enabled the just return. We don't need to do
-	 * anything
-	 */
-	if (usb->usbcx_hprt.s.prtena)
-		return 0;
-
-	/* If there is nothing plugged into the port then fail immediately */
-	if (!usb->usbcx_hprt.s.prtconnsts) {
-		return -ETIMEDOUT;
-	}
-
-	/* Program the port reset bit to start the reset process */
-	USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), union cvmx_usbcx_hprt, prtrst, 1);
-
-	/*
-	 * Wait at least 50ms (high speed), or 10ms (full speed) for the reset
-	 * process to complete.
-	 */
-	mdelay(50);
-
-	/* Program the port reset bit to 0, USBC_HPRT[PRTRST] = 0 */
-	USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), union cvmx_usbcx_hprt, prtrst, 0);
-
-	/* Wait for the USBC_HPRT[PRTENA]. */
-	if (CVMX_WAIT_FOR_FIELD32(CVMX_USBCX_HPRT(usb->index), union cvmx_usbcx_hprt,
-				  prtena, ==, 1, 100000))
-		return -ETIMEDOUT;
-
-	/*
-	 * Read the port speed field to get the enumerated speed,
-	 * USBC_HPRT[PRTSPD].
-	 */
-	usb->usbcx_hprt.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HPRT(usb->index));
-	usbcx_ghwcfg3.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_GHWCFG3(usb->index));
-
-	/*
-	 * 13. Program the USBC_GRXFSIZ register to select the size of the
-	 *     receive FIFO (25%).
-	 */
-	USB_SET_FIELD32(CVMX_USBCX_GRXFSIZ(usb->index), union cvmx_usbcx_grxfsiz,
-			rxfdep, usbcx_ghwcfg3.s.dfifodepth / 4);
-	/*
-	 * 14. Program the USBC_GNPTXFSIZ register to select the size and the
-	 *     start address of the non- periodic transmit FIFO for nonperiodic
-	 *     transactions (50%).
-	 */
-	{
-		union cvmx_usbcx_gnptxfsiz siz;
-		siz.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_GNPTXFSIZ(usb->index));
-		siz.s.nptxfdep = usbcx_ghwcfg3.s.dfifodepth / 2;
-		siz.s.nptxfstaddr = usbcx_ghwcfg3.s.dfifodepth / 4;
-		__cvmx_usb_write_csr32(usb, CVMX_USBCX_GNPTXFSIZ(usb->index), siz.u32);
-	}
-	/*
-	 * 15. Program the USBC_HPTXFSIZ register to select the size and start
-	 *     address of the periodic transmit FIFO for periodic transactions
-	 *     (25%).
-	 */
-	{
-		union cvmx_usbcx_hptxfsiz siz;
-		siz.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HPTXFSIZ(usb->index));
-		siz.s.ptxfsize = usbcx_ghwcfg3.s.dfifodepth / 4;
-		siz.s.ptxfstaddr = 3 * usbcx_ghwcfg3.s.dfifodepth / 4;
-		__cvmx_usb_write_csr32(usb, CVMX_USBCX_HPTXFSIZ(usb->index), siz.u32);
-	}
-	/* Flush all FIFOs */
-	USB_SET_FIELD32(CVMX_USBCX_GRSTCTL(usb->index), union cvmx_usbcx_grstctl, txfnum, 0x10);
-	USB_SET_FIELD32(CVMX_USBCX_GRSTCTL(usb->index), union cvmx_usbcx_grstctl, txfflsh, 1);
-	CVMX_WAIT_FOR_FIELD32(CVMX_USBCX_GRSTCTL(usb->index), union cvmx_usbcx_grstctl,
-			      txfflsh, ==, 0, 100);
-	USB_SET_FIELD32(CVMX_USBCX_GRSTCTL(usb->index), union cvmx_usbcx_grstctl, rxfflsh, 1);
-	CVMX_WAIT_FOR_FIELD32(CVMX_USBCX_GRSTCTL(usb->index), union cvmx_usbcx_grstctl,
-			      rxfflsh, ==, 0, 100);
-
-	return 0;
-}
-
-
-/**
- * Disable a USB port. After this call the USB port will not
- * generate data transfers and will not generate events.
- * Transactions in process will fail and call their
- * associated callbacks.
- *
- * @state: USB device state populated by
- *	   cvmx_usb_initialize().
- *
- * Returns: 0 or a negative error code.
- */
-int cvmx_usb_disable(struct cvmx_usb_state *state)
-{
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
-
-	/* Disable the port */
-	USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), union cvmx_usbcx_hprt, prtena, 1);
-	return 0;
-}
-
-
-/**
- * Get the current state of the USB port. Use this call to
- * determine if the usb port has anything connected, is enabled,
- * or has some sort of error condition. The return value of this
- * call has "changed" bits to signal of the value of some fields
- * have changed between calls. These "changed" fields are based
- * on the last call to cvmx_usb_set_status(). In order to clear
- * them, you must update the status through cvmx_usb_set_status().
- *
- * @state: USB device state populated by
- *	   cvmx_usb_initialize().
- *
- * Returns: Port status information
- */
-struct cvmx_usb_port_status cvmx_usb_get_status(struct cvmx_usb_state *state)
-{
-	union cvmx_usbcx_hprt usbc_hprt;
-	struct cvmx_usb_port_status result;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
-
-	memset(&result, 0, sizeof(result));
-
-	usbc_hprt.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HPRT(usb->index));
-	result.port_enabled = usbc_hprt.s.prtena;
-	result.port_over_current = usbc_hprt.s.prtovrcurract;
-	result.port_powered = usbc_hprt.s.prtpwr;
-	result.port_speed = usbc_hprt.s.prtspd;
-	result.connected = usbc_hprt.s.prtconnsts;
-	result.connect_change = (result.connected != usb->port_status.connected);
-
-	return result;
-}
-
-
-/**
- * Set the current state of the USB port. The status is used as
- * a reference for the "changed" bits returned by
- * cvmx_usb_get_status(). Other than serving as a reference, the
- * status passed to this function is not used. No fields can be
- * changed through this call.
- *
- * @state:	 USB device state populated by
- *		 cvmx_usb_initialize().
- * @port_status:
- *		 Port status to set, most like returned by cvmx_usb_get_status()
- */
-void cvmx_usb_set_status(struct cvmx_usb_state *state, struct cvmx_usb_port_status port_status)
-{
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
-	usb->port_status = port_status;
-	return;
-}
-
-
-/**
- * Convert a USB transaction into a handle
- *
- * @usb:	 USB device state populated by
- *		 cvmx_usb_initialize().
- * @transaction:
- *		 Transaction to get handle for
- *
- * Returns: Handle
- */
-static inline int __cvmx_usb_get_submit_handle(struct cvmx_usb_internal_state *usb,
-					       struct cvmx_usb_transaction *transaction)
-{
-	return ((unsigned long)transaction - (unsigned long)usb->transaction) /
-			sizeof(*transaction);
-}
-
-
-/**
- * Convert a USB pipe into a handle
- *
- * @usb:	 USB device state populated by
- *		 cvmx_usb_initialize().
- * @pipe:	 Pipe to get handle for
- *
- * Returns: Handle
- */
-static inline int __cvmx_usb_get_pipe_handle(struct cvmx_usb_internal_state *usb,
-					     struct cvmx_usb_pipe *pipe)
-{
-	return ((unsigned long)pipe - (unsigned long)usb->pipe) / sizeof(*pipe);
-}
-
-
-/**
- * Open a virtual pipe between the host and a USB device. A pipe
- * must be opened before data can be transferred between a device
- * and Octeon.
- *
- * @state:	     USB device state populated by
- *		     cvmx_usb_initialize().
- * @device_addr:
- *		     USB device address to open the pipe to
- *		     (0-127).
- * @endpoint_num:
- *		     USB endpoint number to open the pipe to
- *		     (0-15).
- * @device_speed:
- *		     The speed of the device the pipe is going
- *		     to. This must match the device's speed,
- *		     which may be different than the port speed.
- * @max_packet:	     The maximum packet length the device can
- *		     transmit/receive (low speed=0-8, full
- *		     speed=0-1023, high speed=0-1024). This value
- *		     comes from the standard endpoint descriptor
- *		     field wMaxPacketSize bits <10:0>.
- * @transfer_type:
- *		     The type of transfer this pipe is for.
- * @transfer_dir:
- *		     The direction the pipe is in. This is not
- *		     used for control pipes.
- * @interval:	     For ISOCHRONOUS and INTERRUPT transfers,
- *		     this is how often the transfer is scheduled
- *		     for. All other transfers should specify
- *		     zero. The units are in frames (8000/sec at
- *		     high speed, 1000/sec for full speed).
- * @multi_count:
- *		     For high speed devices, this is the maximum
- *		     allowed number of packet per microframe.
- *		     Specify zero for non high speed devices. This
- *		     value comes from the standard endpoint descriptor
- *		     field wMaxPacketSize bits <12:11>.
- * @hub_device_addr:
- *		     Hub device address this device is connected
- *		     to. Devices connected directly to Octeon
- *		     use zero. This is only used when the device
- *		     is full/low speed behind a high speed hub.
- *		     The address will be of the high speed hub,
- *		     not and full speed hubs after it.
- * @hub_port:	     Which port on the hub the device is
- *		     connected. Use zero for devices connected
- *		     directly to Octeon. Like hub_device_addr,
- *		     this is only used for full/low speed
- *		     devices behind a high speed hub.
- *
- * Returns: A non negative value is a pipe handle. Negative
- *	    values are error codes.
- */
-int cvmx_usb_open_pipe(struct cvmx_usb_state *state,
-		       int device_addr, int endpoint_num,
-		       enum cvmx_usb_speed device_speed, int max_packet,
-		       enum cvmx_usb_transfer transfer_type,
-		       enum cvmx_usb_direction transfer_dir, int interval,
-		       int multi_count, int hub_device_addr, int hub_port)
-{
-	struct cvmx_usb_pipe *pipe;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
-
-	if (unlikely((device_addr < 0) || (device_addr > MAX_USB_ADDRESS)))
-		return -EINVAL;
-	if (unlikely((endpoint_num < 0) || (endpoint_num > MAX_USB_ENDPOINT)))
-		return -EINVAL;
-	if (unlikely(device_speed > CVMX_USB_SPEED_LOW))
-		return -EINVAL;
-	if (unlikely((max_packet <= 0) || (max_packet > 1024)))
-		return -EINVAL;
-	if (unlikely(transfer_type > CVMX_USB_TRANSFER_INTERRUPT))
-		return -EINVAL;
-	if (unlikely((transfer_dir != CVMX_USB_DIRECTION_OUT) &&
-		(transfer_dir != CVMX_USB_DIRECTION_IN)))
-		return -EINVAL;
-	if (unlikely(interval < 0))
-		return -EINVAL;
-	if (unlikely((transfer_type == CVMX_USB_TRANSFER_CONTROL) && interval))
-		return -EINVAL;
-	if (unlikely(multi_count < 0))
-		return -EINVAL;
-	if (unlikely((device_speed != CVMX_USB_SPEED_HIGH) &&
-		(multi_count != 0)))
-		return -EINVAL;
-	if (unlikely((hub_device_addr < 0) || (hub_device_addr > MAX_USB_ADDRESS)))
-		return -EINVAL;
-	if (unlikely((hub_port < 0) || (hub_port > MAX_USB_HUB_PORT)))
-		return -EINVAL;
-
-	/* Find a free pipe */
-	pipe = usb->free_pipes.head;
-	if (!pipe)
-		return -ENOMEM;
-	__cvmx_usb_remove_pipe(&usb->free_pipes, pipe);
-	pipe->flags = __CVMX_USB_PIPE_FLAGS_OPEN;
-	if ((device_speed == CVMX_USB_SPEED_HIGH) &&
-		(transfer_dir == CVMX_USB_DIRECTION_OUT) &&
-		(transfer_type == CVMX_USB_TRANSFER_BULK))
-		pipe->flags |= __CVMX_USB_PIPE_FLAGS_NEED_PING;
-	pipe->device_addr = device_addr;
-	pipe->endpoint_num = endpoint_num;
-	pipe->device_speed = device_speed;
-	pipe->max_packet = max_packet;
-	pipe->transfer_type = transfer_type;
-	pipe->transfer_dir = transfer_dir;
-	/*
-	 * All pipes use interval to rate limit NAK processing. Force an
-	 * interval if one wasn't supplied
-	 */
-	if (!interval)
-		interval = 1;
-	if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
-		pipe->interval = interval*8;
-		/* Force start splits to be schedule on uFrame 0 */
-		pipe->next_tx_frame = ((usb->frame_number+7)&~7) + pipe->interval;
-	} else {
-		pipe->interval = interval;
-		pipe->next_tx_frame = usb->frame_number + pipe->interval;
-	}
-	pipe->multi_count = multi_count;
-	pipe->hub_device_addr = hub_device_addr;
-	pipe->hub_port = hub_port;
-	pipe->pid_toggle = 0;
-	pipe->split_sc_frame = -1;
-	__cvmx_usb_append_pipe(&usb->idle_pipes, pipe);
-
-	/*
-	 * We don't need to tell the hardware about this pipe yet since
-	 * it doesn't have any submitted requests
-	 */
-
-	return __cvmx_usb_get_pipe_handle(usb, pipe);
-}
-
-
-/**
- * Poll the RX FIFOs and remove data as needed. This function is only used
- * in non DMA mode. It is very important that this function be called quickly
- * enough to prevent FIFO overflow.
- *
- * @usb:	USB device state populated by
- *		cvmx_usb_initialize().
- */
-static void __cvmx_usb_poll_rx_fifo(struct cvmx_usb_internal_state *usb)
-{
-	union cvmx_usbcx_grxstsph rx_status;
-	int channel;
-	int bytes;
-	uint64_t address;
-	uint32_t *ptr;
-
-	rx_status.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_GRXSTSPH(usb->index));
-	/* Only read data if IN data is there */
-	if (rx_status.s.pktsts != 2)
-		return;
-	/* Check if no data is available */
-	if (!rx_status.s.bcnt)
-		return;
-
-	channel = rx_status.s.chnum;
-	bytes = rx_status.s.bcnt;
-	if (!bytes)
-		return;
-
-	/* Get where the DMA engine would have written this data */
-	address = __cvmx_usb_read_csr64(usb, CVMX_USBNX_DMA0_INB_CHN0(usb->index) + channel*8);
-	ptr = cvmx_phys_to_ptr(address);
-	__cvmx_usb_write_csr64(usb, CVMX_USBNX_DMA0_INB_CHN0(usb->index) + channel*8, address + bytes);
-
-	/* Loop writing the FIFO data for this packet into memory */
-	while (bytes > 0) {
-		*ptr++ = __cvmx_usb_read_csr32(usb, USB_FIFO_ADDRESS(channel, usb->index));
-		bytes -= 4;
-	}
-	CVMX_SYNCW;
-
-	return;
-}
-
-
-/**
- * Fill the TX hardware fifo with data out of the software
- * fifos
- *
- * @usb:	    USB device state populated by
- *		    cvmx_usb_initialize().
- * @fifo:	    Software fifo to use
- * @available:	    Amount of space in the hardware fifo
- *
- * Returns: Non zero if the hardware fifo was too small and needs
- *	    to be serviced again.
- */
-static int __cvmx_usb_fill_tx_hw(struct cvmx_usb_internal_state *usb, struct cvmx_usb_tx_fifo *fifo, int available)
-{
-	/*
-	 * We're done either when there isn't anymore space or the software FIFO
-	 * is empty
-	 */
-	while (available && (fifo->head != fifo->tail)) {
-		int i = fifo->tail;
-		const uint32_t *ptr = cvmx_phys_to_ptr(fifo->entry[i].address);
-		uint64_t csr_address = USB_FIFO_ADDRESS(fifo->entry[i].channel, usb->index) ^ 4;
-		int words = available;
-
-		/* Limit the amount of data to waht the SW fifo has */
-		if (fifo->entry[i].size <= available) {
-			words = fifo->entry[i].size;
-			fifo->tail++;
-			if (fifo->tail > MAX_CHANNELS)
-				fifo->tail = 0;
-		}
-
-		/* Update the next locations and counts */
-		available -= words;
-		fifo->entry[i].address += words * 4;
-		fifo->entry[i].size -= words;
-
-		/*
-		 * Write the HW fifo data. The read every three writes is due
-		 * to an errata on CN3XXX chips
-		 */
-		while (words > 3) {
-			cvmx_write64_uint32(csr_address, *ptr++);
-			cvmx_write64_uint32(csr_address, *ptr++);
-			cvmx_write64_uint32(csr_address, *ptr++);
-			cvmx_read64_uint64(CVMX_USBNX_DMA0_INB_CHN0(usb->index));
-			words -= 3;
-		}
-		cvmx_write64_uint32(csr_address, *ptr++);
-		if (--words) {
-			cvmx_write64_uint32(csr_address, *ptr++);
-			if (--words)
-				cvmx_write64_uint32(csr_address, *ptr++);
-		}
-		cvmx_read64_uint64(CVMX_USBNX_DMA0_INB_CHN0(usb->index));
-	}
-	return fifo->head != fifo->tail;
-}
-
-
-/**
- * Check the hardware FIFOs and fill them as needed
- *
- * @usb:	USB device state populated by
- *		cvmx_usb_initialize().
- */
-static void __cvmx_usb_poll_tx_fifo(struct cvmx_usb_internal_state *usb)
-{
-	if (usb->periodic.head != usb->periodic.tail) {
-		union cvmx_usbcx_hptxsts tx_status;
-		tx_status.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HPTXSTS(usb->index));
-		if (__cvmx_usb_fill_tx_hw(usb, &usb->periodic, tx_status.s.ptxfspcavail))
-			USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index), union cvmx_usbcx_gintmsk, ptxfempmsk, 1);
-		else
-			USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index), union cvmx_usbcx_gintmsk, ptxfempmsk, 0);
-	}
-
-	if (usb->nonperiodic.head != usb->nonperiodic.tail) {
-		union cvmx_usbcx_gnptxsts tx_status;
-		tx_status.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_GNPTXSTS(usb->index));
-		if (__cvmx_usb_fill_tx_hw(usb, &usb->nonperiodic, tx_status.s.nptxfspcavail))
-			USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index), union cvmx_usbcx_gintmsk, nptxfempmsk, 1);
-		else
-			USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index), union cvmx_usbcx_gintmsk, nptxfempmsk, 0);
-	}
-
-	return;
-}
-
-
-/**
- * Fill the TX FIFO with an outgoing packet
- *
- * @usb:	  USB device state populated by
- *		  cvmx_usb_initialize().
- * @channel:	  Channel number to get packet from
- */
-static void __cvmx_usb_fill_tx_fifo(struct cvmx_usb_internal_state *usb, int channel)
-{
-	union cvmx_usbcx_hccharx hcchar;
-	union cvmx_usbcx_hcspltx usbc_hcsplt;
-	union cvmx_usbcx_hctsizx usbc_hctsiz;
-	struct cvmx_usb_tx_fifo *fifo;
-
-	/* We only need to fill data on outbound channels */
-	hcchar.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCCHARX(channel, usb->index));
-	if (hcchar.s.epdir != CVMX_USB_DIRECTION_OUT)
-		return;
-
-	/* OUT Splits only have data on the start and not the complete */
-	usbc_hcsplt.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCSPLTX(channel, usb->index));
-	if (usbc_hcsplt.s.spltena && usbc_hcsplt.s.compsplt)
-		return;
-
-	/*
-	 * Find out how many bytes we need to fill and convert it into 32bit
-	 * words.
-	 */
-	usbc_hctsiz.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCTSIZX(channel, usb->index));
-	if (!usbc_hctsiz.s.xfersize)
-		return;
-
-	if ((hcchar.s.eptype == CVMX_USB_TRANSFER_INTERRUPT) ||
-		(hcchar.s.eptype == CVMX_USB_TRANSFER_ISOCHRONOUS))
-		fifo = &usb->periodic;
-	else
-		fifo = &usb->nonperiodic;
-
-	fifo->entry[fifo->head].channel = channel;
-	fifo->entry[fifo->head].address = __cvmx_usb_read_csr64(usb, CVMX_USBNX_DMA0_OUTB_CHN0(usb->index) + channel*8);
-	fifo->entry[fifo->head].size = (usbc_hctsiz.s.xfersize+3)>>2;
-	fifo->head++;
-	if (fifo->head > MAX_CHANNELS)
-		fifo->head = 0;
-
-	__cvmx_usb_poll_tx_fifo(usb);
-
-	return;
-}
-
-/**
- * Perform channel specific setup for Control transactions. All
- * the generic stuff will already have been done in
- * __cvmx_usb_start_channel()
- *
- * @usb:	  USB device state populated by
- *		  cvmx_usb_initialize().
- * @channel:	  Channel to setup
- * @pipe:	  Pipe for control transaction
- */
-static void __cvmx_usb_start_channel_control(struct cvmx_usb_internal_state *usb,
-					     int channel,
-					     struct cvmx_usb_pipe *pipe)
-{
-	struct cvmx_usb_transaction *transaction = pipe->head;
-	union cvmx_usb_control_header *header =
-		cvmx_phys_to_ptr(transaction->control_header);
-	int bytes_to_transfer = transaction->buffer_length - transaction->actual_bytes;
-	int packets_to_transfer;
-	union cvmx_usbcx_hctsizx usbc_hctsiz;
-
-	usbc_hctsiz.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCTSIZX(channel, usb->index));
-
-	switch (transaction->stage) {
-	case CVMX_USB_STAGE_NON_CONTROL:
-	case CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE:
-		cvmx_dprintf("%s: ERROR - Non control stage\n", __FUNCTION__);
-		break;
-	case CVMX_USB_STAGE_SETUP:
-		usbc_hctsiz.s.pid = 3; /* Setup */
-		bytes_to_transfer = sizeof(*header);
-		/* All Control operations start with a setup going OUT */
-		USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index), union cvmx_usbcx_hccharx, epdir, CVMX_USB_DIRECTION_OUT);
-		/*
-		 * Setup send the control header instead of the buffer data. The
-		 * buffer data will be used in the next stage
-		 */
-		__cvmx_usb_write_csr64(usb, CVMX_USBNX_DMA0_OUTB_CHN0(usb->index) + channel*8, transaction->control_header);
-		break;
-	case CVMX_USB_STAGE_SETUP_SPLIT_COMPLETE:
-		usbc_hctsiz.s.pid = 3; /* Setup */
-		bytes_to_transfer = 0;
-		/* All Control operations start with a setup going OUT */
-		USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index), union cvmx_usbcx_hccharx, epdir, CVMX_USB_DIRECTION_OUT);
-		USB_SET_FIELD32(CVMX_USBCX_HCSPLTX(channel, usb->index), union cvmx_usbcx_hcspltx, compsplt, 1);
-		break;
-	case CVMX_USB_STAGE_DATA:
-		usbc_hctsiz.s.pid = __cvmx_usb_get_data_pid(pipe);
-		if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
-			if (header->s.request_type & 0x80)
-				bytes_to_transfer = 0;
-			else if (bytes_to_transfer > pipe->max_packet)
-				bytes_to_transfer = pipe->max_packet;
-		}
-		USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index),
-				union cvmx_usbcx_hccharx, epdir,
-				((header->s.request_type & 0x80) ?
-					CVMX_USB_DIRECTION_IN :
-					CVMX_USB_DIRECTION_OUT));
-		break;
-	case CVMX_USB_STAGE_DATA_SPLIT_COMPLETE:
-		usbc_hctsiz.s.pid = __cvmx_usb_get_data_pid(pipe);
-		if (!(header->s.request_type & 0x80))
-			bytes_to_transfer = 0;
-		USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index),
-				union cvmx_usbcx_hccharx, epdir,
-				((header->s.request_type & 0x80) ?
-					CVMX_USB_DIRECTION_IN :
-					CVMX_USB_DIRECTION_OUT));
-		USB_SET_FIELD32(CVMX_USBCX_HCSPLTX(channel, usb->index), union cvmx_usbcx_hcspltx, compsplt, 1);
-		break;
-	case CVMX_USB_STAGE_STATUS:
-		usbc_hctsiz.s.pid = __cvmx_usb_get_data_pid(pipe);
-		bytes_to_transfer = 0;
-		USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index), union cvmx_usbcx_hccharx, epdir,
-				((header->s.request_type & 0x80) ?
-					CVMX_USB_DIRECTION_OUT :
-					CVMX_USB_DIRECTION_IN));
-		break;
-	case CVMX_USB_STAGE_STATUS_SPLIT_COMPLETE:
-		usbc_hctsiz.s.pid = __cvmx_usb_get_data_pid(pipe);
-		bytes_to_transfer = 0;
-		USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index), union cvmx_usbcx_hccharx, epdir,
-				((header->s.request_type & 0x80) ?
-					CVMX_USB_DIRECTION_OUT :
-					CVMX_USB_DIRECTION_IN));
-		USB_SET_FIELD32(CVMX_USBCX_HCSPLTX(channel, usb->index), union cvmx_usbcx_hcspltx, compsplt, 1);
-		break;
-	}
-
-	/*
-	 * Make sure the transfer never exceeds the byte limit of the hardware.
-	 * Further bytes will be sent as continued transactions
-	 */
-	if (bytes_to_transfer > MAX_TRANSFER_BYTES) {
-		/* Round MAX_TRANSFER_BYTES to a multiple of out packet size */
-		bytes_to_transfer = MAX_TRANSFER_BYTES / pipe->max_packet;
-		bytes_to_transfer *= pipe->max_packet;
-	}
-
-	/*
-	 * Calculate the number of packets to transfer. If the length is zero
-	 * we still need to transfer one packet
-	 */
-	packets_to_transfer = (bytes_to_transfer + pipe->max_packet - 1) / pipe->max_packet;
-	if (packets_to_transfer == 0)
-		packets_to_transfer = 1;
-	else if ((packets_to_transfer > 1) && (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)) {
-		/*
-		 * Limit to one packet when not using DMA. Channels must be
-		 * restarted between every packet for IN transactions, so there
-		 * is no reason to do multiple packets in a row
-		 */
-		packets_to_transfer = 1;
-		bytes_to_transfer = packets_to_transfer * pipe->max_packet;
-	} else if (packets_to_transfer > MAX_TRANSFER_PACKETS) {
-		/*
-		 * Limit the number of packet and data transferred to what the
-		 * hardware can handle
-		 */
-		packets_to_transfer = MAX_TRANSFER_PACKETS;
-		bytes_to_transfer = packets_to_transfer * pipe->max_packet;
-	}
-
-	usbc_hctsiz.s.xfersize = bytes_to_transfer;
-	usbc_hctsiz.s.pktcnt = packets_to_transfer;
-
-	__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCTSIZX(channel, usb->index), usbc_hctsiz.u32);
-	return;
-}
-
-
-/**
- * Start a channel to perform the pipe's head transaction
- *
- * @usb:	  USB device state populated by
- *		  cvmx_usb_initialize().
- * @channel:	  Channel to setup
- * @pipe:	  Pipe to start
- */
-static void __cvmx_usb_start_channel(struct cvmx_usb_internal_state *usb,
-				     int channel,
-				     struct cvmx_usb_pipe *pipe)
-{
-	struct cvmx_usb_transaction *transaction = pipe->head;
-
-	/* Make sure all writes to the DMA region get flushed */
-	CVMX_SYNCW;
-
-	/* Attach the channel to the pipe */
-	usb->pipe_for_channel[channel] = pipe;
-	pipe->channel = channel;
-	pipe->flags |= __CVMX_USB_PIPE_FLAGS_SCHEDULED;
-
-	/* Mark this channel as in use */
-	usb->idle_hardware_channels &= ~(1<<channel);
-
-	/* Enable the channel interrupt bits */
-	{
-		union cvmx_usbcx_hcintx usbc_hcint;
-		union cvmx_usbcx_hcintmskx usbc_hcintmsk;
-		union cvmx_usbcx_haintmsk usbc_haintmsk;
-
-		/* Clear all channel status bits */
-		usbc_hcint.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCINTX(channel, usb->index));
-		__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCINTX(channel, usb->index), usbc_hcint.u32);
-
-		usbc_hcintmsk.u32 = 0;
-		usbc_hcintmsk.s.chhltdmsk = 1;
-		if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA) {
-			/*
-			 * Channels need these extra interrupts when we aren't
-			 * in DMA mode.
-			 */
-			usbc_hcintmsk.s.datatglerrmsk = 1;
-			usbc_hcintmsk.s.frmovrunmsk = 1;
-			usbc_hcintmsk.s.bblerrmsk = 1;
-			usbc_hcintmsk.s.xacterrmsk = 1;
-			if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
-				/*
-				 * Splits don't generate xfercompl, so we need
-				 * ACK and NYET.
-				 */
-				usbc_hcintmsk.s.nyetmsk = 1;
-				usbc_hcintmsk.s.ackmsk = 1;
-			}
-			usbc_hcintmsk.s.nakmsk = 1;
-			usbc_hcintmsk.s.stallmsk = 1;
-			usbc_hcintmsk.s.xfercomplmsk = 1;
-		}
-		__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCINTMSKX(channel, usb->index), usbc_hcintmsk.u32);
-
-		/* Enable the channel interrupt to propagate */
-		usbc_haintmsk.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HAINTMSK(usb->index));
-		usbc_haintmsk.s.haintmsk |= 1<<channel;
-		__cvmx_usb_write_csr32(usb, CVMX_USBCX_HAINTMSK(usb->index), usbc_haintmsk.u32);
-	}
-
-	/* Setup the locations the DMA engines use  */
-	{
-		uint64_t dma_address = transaction->buffer + transaction->actual_bytes;
-		if (transaction->type == CVMX_USB_TRANSFER_ISOCHRONOUS)
-			dma_address = transaction->buffer + transaction->iso_packets[0].offset + transaction->actual_bytes;
-		__cvmx_usb_write_csr64(usb, CVMX_USBNX_DMA0_OUTB_CHN0(usb->index) + channel*8, dma_address);
-		__cvmx_usb_write_csr64(usb, CVMX_USBNX_DMA0_INB_CHN0(usb->index) + channel*8, dma_address);
-	}
-
-	/* Setup both the size of the transfer and the SPLIT characteristics */
-	{
-		union cvmx_usbcx_hcspltx usbc_hcsplt = {.u32 = 0};
-		union cvmx_usbcx_hctsizx usbc_hctsiz = {.u32 = 0};
-		int packets_to_transfer;
-		int bytes_to_transfer = transaction->buffer_length - transaction->actual_bytes;
-
-		/*
-		 * ISOCHRONOUS transactions store each individual transfer size
-		 * in the packet structure, not the global buffer_length
-		 */
-		if (transaction->type == CVMX_USB_TRANSFER_ISOCHRONOUS)
-			bytes_to_transfer = transaction->iso_packets[0].length - transaction->actual_bytes;
-
-		/*
-		 * We need to do split transactions when we are talking to non
-		 * high speed devices that are behind a high speed hub
-		 */
-		if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
-			/*
-			 * On the start split phase (stage is even) record the
-			 * frame number we will need to send the split complete.
-			 * We only store the lower two bits since the time ahead
-			 * can only be two frames
-			 */
-			if ((transaction->stage&1) == 0) {
-				if (transaction->type == CVMX_USB_TRANSFER_BULK)
-					pipe->split_sc_frame = (usb->frame_number + 1) & 0x7f;
-				else
-					pipe->split_sc_frame = (usb->frame_number + 2) & 0x7f;
-			} else
-				pipe->split_sc_frame = -1;
-
-			usbc_hcsplt.s.spltena = 1;
-			usbc_hcsplt.s.hubaddr = pipe->hub_device_addr;
-			usbc_hcsplt.s.prtaddr = pipe->hub_port;
-			usbc_hcsplt.s.compsplt = (transaction->stage == CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE);
-
-			/*
-			 * SPLIT transactions can only ever transmit one data
-			 * packet so limit the transfer size to the max packet
-			 * size
-			 */
-			if (bytes_to_transfer > pipe->max_packet)
-				bytes_to_transfer = pipe->max_packet;
-
-			/*
-			 * ISOCHRONOUS OUT splits are unique in that they limit
-			 * data transfers to 188 byte chunks representing the
-			 * begin/middle/end of the data or all
-			 */
-			if (!usbc_hcsplt.s.compsplt &&
-				(pipe->transfer_dir == CVMX_USB_DIRECTION_OUT) &&
-				(pipe->transfer_type == CVMX_USB_TRANSFER_ISOCHRONOUS)) {
-				/*
-				 * Clear the split complete frame number as
-				 * there isn't going to be a split complete
-				 */
-				pipe->split_sc_frame = -1;
-				/*
-				 * See if we've started this transfer and sent
-				 * data
-				 */
-				if (transaction->actual_bytes == 0) {
-					/*
-					 * Nothing sent yet, this is either a
-					 * begin or the entire payload
-					 */
-					if (bytes_to_transfer <= 188)
-						/* Entire payload in one go */
-						usbc_hcsplt.s.xactpos = 3;
-					else
-						/* First part of payload */
-						usbc_hcsplt.s.xactpos = 2;
-				} else {
-					/*
-					 * Continuing the previous data, we must
-					 * either be in the middle or at the end
-					 */
-					if (bytes_to_transfer <= 188)
-						/* End of payload */
-						usbc_hcsplt.s.xactpos = 1;
-					else
-						/* Middle of payload */
-						usbc_hcsplt.s.xactpos = 0;
-				}
-				/*
-				 * Again, the transfer size is limited to 188
-				 * bytes
-				 */
-				if (bytes_to_transfer > 188)
-					bytes_to_transfer = 188;
-			}
-		}
-
-		/*
-		 * Make sure the transfer never exceeds the byte limit of the
-		 * hardware. Further bytes will be sent as continued
-		 * transactions
-		 */
-		if (bytes_to_transfer > MAX_TRANSFER_BYTES) {
-			/*
-			 * Round MAX_TRANSFER_BYTES to a multiple of out packet
-			 * size
-			 */
-			bytes_to_transfer = MAX_TRANSFER_BYTES / pipe->max_packet;
-			bytes_to_transfer *= pipe->max_packet;
-		}
-
-		/*
-		 * Calculate the number of packets to transfer. If the length is
-		 * zero we still need to transfer one packet
-		 */
-		packets_to_transfer = (bytes_to_transfer + pipe->max_packet - 1) / pipe->max_packet;
-		if (packets_to_transfer == 0)
-			packets_to_transfer = 1;
-		else if ((packets_to_transfer > 1) && (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)) {
-			/*
-			 * Limit to one packet when not using DMA. Channels must
-			 * be restarted between every packet for IN
-			 * transactions, so there is no reason to do multiple
-			 * packets in a row
-			 */
-			packets_to_transfer = 1;
-			bytes_to_transfer = packets_to_transfer * pipe->max_packet;
-		} else if (packets_to_transfer > MAX_TRANSFER_PACKETS) {
-			/*
-			 * Limit the number of packet and data transferred to
-			 * what the hardware can handle
-			 */
-			packets_to_transfer = MAX_TRANSFER_PACKETS;
-			bytes_to_transfer = packets_to_transfer * pipe->max_packet;
-		}
-
-		usbc_hctsiz.s.xfersize = bytes_to_transfer;
-		usbc_hctsiz.s.pktcnt = packets_to_transfer;
-
-		/* Update the DATA0/DATA1 toggle */
-		usbc_hctsiz.s.pid = __cvmx_usb_get_data_pid(pipe);
-		/*
-		 * High speed pipes may need a hardware ping before they start
-		 */
-		if (pipe->flags & __CVMX_USB_PIPE_FLAGS_NEED_PING)
-			usbc_hctsiz.s.dopng = 1;
-
-		__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCSPLTX(channel, usb->index), usbc_hcsplt.u32);
-		__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCTSIZX(channel, usb->index), usbc_hctsiz.u32);
-	}
-
-	/* Setup the Host Channel Characteristics Register */
-	{
-		union cvmx_usbcx_hccharx usbc_hcchar = {.u32 = 0};
-
-		/*
-		 * Set the startframe odd/even properly. This is only used for
-		 * periodic
-		 */
-		usbc_hcchar.s.oddfrm = usb->frame_number&1;
-
-		/*
-		 * Set the number of back to back packets allowed by this
-		 * endpoint. Split transactions interpret "ec" as the number of
-		 * immediate retries of failure. These retries happen too
-		 * quickly, so we disable these entirely for splits
-		 */
-		if (__cvmx_usb_pipe_needs_split(usb, pipe))
-			usbc_hcchar.s.ec = 1;
-		else if (pipe->multi_count < 1)
-			usbc_hcchar.s.ec = 1;
-		else if (pipe->multi_count > 3)
-			usbc_hcchar.s.ec = 3;
-		else
-			usbc_hcchar.s.ec = pipe->multi_count;
-
-		/* Set the rest of the endpoint specific settings */
-		usbc_hcchar.s.devaddr = pipe->device_addr;
-		usbc_hcchar.s.eptype = transaction->type;
-		usbc_hcchar.s.lspddev = (pipe->device_speed == CVMX_USB_SPEED_LOW);
-		usbc_hcchar.s.epdir = pipe->transfer_dir;
-		usbc_hcchar.s.epnum = pipe->endpoint_num;
-		usbc_hcchar.s.mps = pipe->max_packet;
-		__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCCHARX(channel, usb->index), usbc_hcchar.u32);
-	}
-
-	/* Do transaction type specific fixups as needed */
-	switch (transaction->type) {
-	case CVMX_USB_TRANSFER_CONTROL:
-		__cvmx_usb_start_channel_control(usb, channel, pipe);
-		break;
-	case CVMX_USB_TRANSFER_BULK:
-	case CVMX_USB_TRANSFER_INTERRUPT:
-		break;
-	case CVMX_USB_TRANSFER_ISOCHRONOUS:
-		if (!__cvmx_usb_pipe_needs_split(usb, pipe)) {
-			/*
-			 * ISO transactions require different PIDs depending on
-			 * direction and how many packets are needed
-			 */
-			if (pipe->transfer_dir == CVMX_USB_DIRECTION_OUT) {
-				if (pipe->multi_count < 2) /* Need DATA0 */
-					USB_SET_FIELD32(CVMX_USBCX_HCTSIZX(channel, usb->index), union cvmx_usbcx_hctsizx, pid, 0);
-				else /* Need MDATA */
-					USB_SET_FIELD32(CVMX_USBCX_HCTSIZX(channel, usb->index), union cvmx_usbcx_hctsizx, pid, 3);
-			}
-		}
-		break;
-	}
-	{
-		union cvmx_usbcx_hctsizx usbc_hctsiz = {.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCTSIZX(channel, usb->index))};
-		transaction->xfersize = usbc_hctsiz.s.xfersize;
-		transaction->pktcnt = usbc_hctsiz.s.pktcnt;
-	}
-	/* Remeber when we start a split transaction */
-	if (__cvmx_usb_pipe_needs_split(usb, pipe))
-		usb->active_split = transaction;
-	USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index), union cvmx_usbcx_hccharx, chena, 1);
-	if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)
-		__cvmx_usb_fill_tx_fifo(usb, channel);
-	return;
-}
-
-
-/**
- * Find a pipe that is ready to be scheduled to hardware.
- * @usb:	 USB device state populated by
- *		 cvmx_usb_initialize().
- * @list:	 Pipe list to search
- * @current_frame:
- *		 Frame counter to use as a time reference.
- *
- * Returns: Pipe or NULL if none are ready
- */
-static struct cvmx_usb_pipe *__cvmx_usb_find_ready_pipe(struct cvmx_usb_internal_state *usb, struct cvmx_usb_pipe_list *list, uint64_t current_frame)
-{
-	struct cvmx_usb_pipe *pipe = list->head;
-	while (pipe) {
-		if (!(pipe->flags & __CVMX_USB_PIPE_FLAGS_SCHEDULED) && pipe->head &&
-			(pipe->next_tx_frame <= current_frame) &&
-			((pipe->split_sc_frame == -1) || ((((int)current_frame - (int)pipe->split_sc_frame) & 0x7f) < 0x40)) &&
-			(!usb->active_split || (usb->active_split == pipe->head))) {
-			CVMX_PREFETCH(pipe, 128);
-			CVMX_PREFETCH(pipe->head, 0);
-			return pipe;
-		}
-		pipe = pipe->next;
-	}
-	return NULL;
-}
-
-
-/**
- * Called whenever a pipe might need to be scheduled to the
- * hardware.
- *
- * @usb:	 USB device state populated by
- *		 cvmx_usb_initialize().
- * @is_sof:	 True if this schedule was called on a SOF interrupt.
- */
-static void __cvmx_usb_schedule(struct cvmx_usb_internal_state *usb, int is_sof)
-{
-	int channel;
-	struct cvmx_usb_pipe *pipe;
-	int need_sof;
-	enum cvmx_usb_transfer ttype;
-
-	if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA) {
-		/*
-		 * Without DMA we need to be careful to not schedule something
-		 * at the end of a frame and cause an overrun.
-		 */
-		union cvmx_usbcx_hfnum hfnum = {.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HFNUM(usb->index))};
-		union cvmx_usbcx_hfir hfir = {.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HFIR(usb->index))};
-		if (hfnum.s.frrem < hfir.s.frint/4)
-			goto done;
-	}
-
-	while (usb->idle_hardware_channels) {
-		/* Find an idle channel */
-		channel = __fls(usb->idle_hardware_channels);
-		if (unlikely(channel > 7))
-			break;
-
-		/* Find a pipe needing service */
-		pipe = NULL;
-		if (is_sof) {
-			/*
-			 * Only process periodic pipes on SOF interrupts. This
-			 * way we are sure that the periodic data is sent in the
-			 * beginning of the frame
-			 */
-			pipe = __cvmx_usb_find_ready_pipe(usb, usb->active_pipes + CVMX_USB_TRANSFER_ISOCHRONOUS, usb->frame_number);
-			if (likely(!pipe))
-				pipe = __cvmx_usb_find_ready_pipe(usb, usb->active_pipes + CVMX_USB_TRANSFER_INTERRUPT, usb->frame_number);
-		}
-		if (likely(!pipe)) {
-			pipe = __cvmx_usb_find_ready_pipe(usb, usb->active_pipes + CVMX_USB_TRANSFER_CONTROL, usb->frame_number);
-			if (likely(!pipe))
-				pipe = __cvmx_usb_find_ready_pipe(usb, usb->active_pipes + CVMX_USB_TRANSFER_BULK, usb->frame_number);
-		}
-		if (!pipe)
-			break;
-
-		__cvmx_usb_start_channel(usb, channel, pipe);
-	}
-
-done:
-	/*
-	 * Only enable SOF interrupts when we have transactions pending in the
-	 * future that might need to be scheduled
-	 */
-	need_sof = 0;
-	for (ttype = CVMX_USB_TRANSFER_CONTROL; ttype <= CVMX_USB_TRANSFER_INTERRUPT; ttype++) {
-		pipe = usb->active_pipes[ttype].head;
-		while (pipe) {
-			if (pipe->next_tx_frame > usb->frame_number) {
-				need_sof = 1;
-				break;
-			}
-			pipe = pipe->next;
-		}
-	}
-	USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index), union cvmx_usbcx_gintmsk, sofmsk, need_sof);
-	return;
-}
-
-
-/**
- * Call a user's callback for a specific reason.
- *
- * @usb:	 USB device state populated by
- *		 cvmx_usb_initialize().
- * @pipe:	 Pipe the callback is for or NULL
- * @transaction:
- *		 Transaction the callback is for or NULL
- * @reason:	 Reason this callback is being called
- * @complete_code:
- *		 Completion code for the transaction, if any
- */
-static void __cvmx_usb_perform_callback(struct cvmx_usb_internal_state *usb,
-					struct cvmx_usb_pipe *pipe,
-					struct cvmx_usb_transaction *transaction,
-					enum cvmx_usb_callback reason,
-					enum cvmx_usb_complete complete_code)
-{
-	cvmx_usb_callback_func_t callback = usb->callback[reason];
-	void *user_data = usb->callback_data[reason];
-	int submit_handle = -1;
-	int pipe_handle = -1;
-	int bytes_transferred = 0;
-
-	if (pipe)
-		pipe_handle = __cvmx_usb_get_pipe_handle(usb, pipe);
-
-	if (transaction) {
-		submit_handle = __cvmx_usb_get_submit_handle(usb, transaction);
-		bytes_transferred = transaction->actual_bytes;
-		/* Transactions are allowed to override the default callback */
-		if ((reason == CVMX_USB_CALLBACK_TRANSFER_COMPLETE) && transaction->callback) {
-			callback = transaction->callback;
-			user_data = transaction->callback_data;
-		}
-	}
-
-	if (!callback)
-		return;
-
-	callback((struct cvmx_usb_state *)usb, reason, complete_code, pipe_handle, submit_handle,
-		 bytes_transferred, user_data);
-}
-
-
-/**
- * Signal the completion of a transaction and free it. The
- * transaction will be removed from the pipe transaction list.
- *
- * @usb:	 USB device state populated by
- *		 cvmx_usb_initialize().
- * @pipe:	 Pipe the transaction is on
- * @transaction:
- *		 Transaction that completed
- * @complete_code:
- *		 Completion code
- */
-static void __cvmx_usb_perform_complete(struct cvmx_usb_internal_state *usb,
-					struct cvmx_usb_pipe *pipe,
-					struct cvmx_usb_transaction *transaction,
-					enum cvmx_usb_complete complete_code)
-{
-	/* If this was a split then clear our split in progress marker */
-	if (usb->active_split == transaction)
-		usb->active_split = NULL;
-
-	/*
-	 * Isochronous transactions need extra processing as they might not be
-	 * done after a single data transfer
-	 */
-	if (unlikely(transaction->type == CVMX_USB_TRANSFER_ISOCHRONOUS)) {
-		/* Update the number of bytes transferred in this ISO packet */
-		transaction->iso_packets[0].length = transaction->actual_bytes;
-		transaction->iso_packets[0].status = complete_code;
-
-		/*
-		 * If there are more ISOs pending and we succeeded, schedule the
-		 * next one
-		 */
-		if ((transaction->iso_number_packets > 1) && (complete_code == CVMX_USB_COMPLETE_SUCCESS)) {
-			/* No bytes transferred for this packet as of yet */
-			transaction->actual_bytes = 0;
-			/* One less ISO waiting to transfer */
-			transaction->iso_number_packets--;
-			/* Increment to the next location in our packet array */
-			transaction->iso_packets++;
-			transaction->stage = CVMX_USB_STAGE_NON_CONTROL;
-			goto done;
-		}
-	}
-
-	/* Remove the transaction from the pipe list */
-	if (transaction->next)
-		transaction->next->prev = transaction->prev;
-	else
-		pipe->tail = transaction->prev;
-	if (transaction->prev)
-		transaction->prev->next = transaction->next;
-	else
-		pipe->head = transaction->next;
-	if (!pipe->head) {
-		__cvmx_usb_remove_pipe(usb->active_pipes + pipe->transfer_type, pipe);
-		__cvmx_usb_append_pipe(&usb->idle_pipes, pipe);
-
-	}
-	__cvmx_usb_perform_callback(usb, pipe, transaction,
-				    CVMX_USB_CALLBACK_TRANSFER_COMPLETE,
-				    complete_code);
-	__cvmx_usb_free_transaction(usb, transaction);
-done:
-	return;
-}
-
-
-/**
- * Submit a usb transaction to a pipe. Called for all types
- * of transactions.
- *
- * @usb:
- * @pipe_handle:
- *		    Which pipe to submit to. Will be validated in this function.
- * @type:	    Transaction type
- * @buffer:	    User buffer for the transaction
- * @buffer_length:
- *		    User buffer's length in bytes
- * @control_header:
- *		    For control transactions, the 8 byte standard header
- * @iso_start_frame:
- *		    For ISO transactions, the start frame
- * @iso_number_packets:
- *		    For ISO, the number of packet in the transaction.
- * @iso_packets:
- *		    A description of each ISO packet
- * @callback:	    User callback to call when the transaction completes
- * @user_data:	    User's data for the callback
- *
- * Returns: Submit handle or negative on failure. Matches the result
- *	    in the external API.
- */
-static int __cvmx_usb_submit_transaction(struct cvmx_usb_internal_state *usb,
-					 int pipe_handle,
-					 enum cvmx_usb_transfer type,
-					 uint64_t buffer,
-					 int buffer_length,
-					 uint64_t control_header,
-					 int iso_start_frame,
-					 int iso_number_packets,
-					 struct cvmx_usb_iso_packet *iso_packets,
-					 cvmx_usb_callback_func_t callback,
-					 void *user_data)
-{
-	int submit_handle;
-	struct cvmx_usb_transaction *transaction;
-	struct cvmx_usb_pipe *pipe = usb->pipe + pipe_handle;
-
-	if (unlikely((pipe_handle < 0) || (pipe_handle >= MAX_PIPES)))
-		return -EINVAL;
-	/* Fail if the pipe isn't open */
-	if (unlikely((pipe->flags & __CVMX_USB_PIPE_FLAGS_OPEN) == 0))
-		return -EINVAL;
-	if (unlikely(pipe->transfer_type != type))
-		return -EINVAL;
-
-	transaction = __cvmx_usb_alloc_transaction(usb);
-	if (unlikely(!transaction))
-		return -ENOMEM;
-
-	transaction->type = type;
-	transaction->buffer = buffer;
-	transaction->buffer_length = buffer_length;
-	transaction->control_header = control_header;
-	/* FIXME: This is not used, implement it. */
-	transaction->iso_start_frame = iso_start_frame;
-	transaction->iso_number_packets = iso_number_packets;
-	transaction->iso_packets = iso_packets;
-	transaction->callback = callback;
-	transaction->callback_data = user_data;
-	if (transaction->type == CVMX_USB_TRANSFER_CONTROL)
-		transaction->stage = CVMX_USB_STAGE_SETUP;
-	else
-		transaction->stage = CVMX_USB_STAGE_NON_CONTROL;
-
-	transaction->next = NULL;
-	if (pipe->tail) {
-		transaction->prev = pipe->tail;
-		transaction->prev->next = transaction;
-	} else {
-		if (pipe->next_tx_frame < usb->frame_number)
-			pipe->next_tx_frame = usb->frame_number + pipe->interval -
-				(usb->frame_number - pipe->next_tx_frame) % pipe->interval;
-		transaction->prev = NULL;
-		pipe->head = transaction;
-		__cvmx_usb_remove_pipe(&usb->idle_pipes, pipe);
-		__cvmx_usb_append_pipe(usb->active_pipes + pipe->transfer_type, pipe);
-	}
-	pipe->tail = transaction;
-
-	submit_handle = __cvmx_usb_get_submit_handle(usb, transaction);
-
-	/* We may need to schedule the pipe if this was the head of the pipe */
-	if (!transaction->prev)
-		__cvmx_usb_schedule(usb, 0);
-
-	return submit_handle;
-}
-
-
-/**
- * Call to submit a USB Bulk transfer to a pipe.
- *
- * @state:	    USB device state populated by
- *		    cvmx_usb_initialize().
- * @pipe_handle:
- *		    Handle to the pipe for the transfer.
- * @buffer:	    Physical address of the data buffer in
- *		    memory. Note that this is NOT A POINTER, but
- *		    the full 64bit physical address of the
- *		    buffer. This may be zero if buffer_length is
- *		    zero.
- * @buffer_length:
- *		    Length of buffer in bytes.
- * @callback:	    Function to call when this transaction
- *		    completes. If the return value of this
- *		    function isn't an error, then this function
- *		    is guaranteed to be called when the
- *		    transaction completes. If this parameter is
- *		    NULL, then the generic callback registered
- *		    through cvmx_usb_register_callback is
- *		    called. If both are NULL, then there is no
- *		    way to know when a transaction completes.
- * @user_data:	    User supplied data returned when the
- *		    callback is called. This is only used if
- *		    callback in not NULL.
- *
- * Returns: A submitted transaction handle or negative on
- *	    failure. Negative values are error codes.
- */
-int cvmx_usb_submit_bulk(struct cvmx_usb_state *state, int pipe_handle,
-			 uint64_t buffer, int buffer_length,
-			 cvmx_usb_callback_func_t callback,
-			 void *user_data)
-{
-	int submit_handle;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
-
-	/* Pipe handle checking is done later in a common place */
-	if (unlikely(!buffer))
-		return -EINVAL;
-	if (unlikely(buffer_length < 0))
-		return -EINVAL;
-
-	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
-						      CVMX_USB_TRANSFER_BULK,
-						      buffer,
-						      buffer_length,
-						      0, /* control_header */
-						      0, /* iso_start_frame */
-						      0, /* iso_number_packets */
-						      NULL, /* iso_packets */
-						      callback,
-						      user_data);
-	return submit_handle;
-}
-
-
-/**
- * Call to submit a USB Interrupt transfer to a pipe.
- *
- * @state:	    USB device state populated by
- *		    cvmx_usb_initialize().
- * @pipe_handle:
- *		    Handle to the pipe for the transfer.
- * @buffer:	    Physical address of the data buffer in
- *		    memory. Note that this is NOT A POINTER, but
- *		    the full 64bit physical address of the
- *		    buffer. This may be zero if buffer_length is
- *		    zero.
- * @buffer_length:
- *		    Length of buffer in bytes.
- * @callback:	    Function to call when this transaction
- *		    completes. If the return value of this
- *		    function isn't an error, then this function
- *		    is guaranteed to be called when the
- *		    transaction completes. If this parameter is
- *		    NULL, then the generic callback registered
- *		    through cvmx_usb_register_callback is
- *		    called. If both are NULL, then there is no
- *		    way to know when a transaction completes.
- * @user_data:	    User supplied data returned when the
- *		    callback is called. This is only used if
- *		    callback in not NULL.
- *
- * Returns: A submitted transaction handle or negative on
- *	    failure. Negative values are error codes.
- */
-int cvmx_usb_submit_interrupt(struct cvmx_usb_state *state, int pipe_handle,
-			      uint64_t buffer, int buffer_length,
-			      cvmx_usb_callback_func_t callback,
-			      void *user_data)
-{
-	int submit_handle;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
-
-	/* Pipe handle checking is done later in a common place */
-	if (unlikely(!buffer))
-		return -EINVAL;
-	if (unlikely(buffer_length < 0))
-		return -EINVAL;
-
-	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
-						      CVMX_USB_TRANSFER_INTERRUPT,
-						      buffer,
-						      buffer_length,
-						      0, /* control_header */
-						      0, /* iso_start_frame */
-						      0, /* iso_number_packets */
-						      NULL, /* iso_packets */
-						      callback,
-						      user_data);
-	return submit_handle;
-}
-
-
-/**
- * Call to submit a USB Control transfer to a pipe.
- *
- * @state:	    USB device state populated by
- *		    cvmx_usb_initialize().
- * @pipe_handle:
- *		    Handle to the pipe for the transfer.
- * @control_header:
- *		    USB 8 byte control header physical address.
- *		    Note that this is NOT A POINTER, but the
- *		    full 64bit physical address of the buffer.
- * @buffer:	    Physical address of the data buffer in
- *		    memory. Note that this is NOT A POINTER, but
- *		    the full 64bit physical address of the
- *		    buffer. This may be zero if buffer_length is
- *		    zero.
- * @buffer_length:
- *		    Length of buffer in bytes.
- * @callback:	    Function to call when this transaction
- *		    completes. If the return value of this
- *		    function isn't an error, then this function
- *		    is guaranteed to be called when the
- *		    transaction completes. If this parameter is
- *		    NULL, then the generic callback registered
- *		    through cvmx_usb_register_callback is
- *		    called. If both are NULL, then there is no
- *		    way to know when a transaction completes.
- * @user_data:	    User supplied data returned when the
- *		    callback is called. This is only used if
- *		    callback in not NULL.
- *
- * Returns: A submitted transaction handle or negative on
- *	    failure. Negative values are error codes.
- */
-int cvmx_usb_submit_control(struct cvmx_usb_state *state, int pipe_handle,
-			    uint64_t control_header,
-			    uint64_t buffer, int buffer_length,
-			    cvmx_usb_callback_func_t callback,
-			    void *user_data)
-{
-	int submit_handle;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
-	union cvmx_usb_control_header *header =
-		cvmx_phys_to_ptr(control_header);
-
-	/* Pipe handle checking is done later in a common place */
-	if (unlikely(!control_header))
-		return -EINVAL;
-	/* Some drivers send a buffer with a zero length. God only knows why */
-	if (unlikely(buffer && (buffer_length < 0)))
-		return -EINVAL;
-	if (unlikely(!buffer && (buffer_length != 0)))
-		return -EINVAL;
-	if ((header->s.request_type & 0x80) == 0)
-		buffer_length = le16_to_cpu(header->s.length);
-
-	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
-						      CVMX_USB_TRANSFER_CONTROL,
-						      buffer,
-						      buffer_length,
-						      control_header,
-						      0, /* iso_start_frame */
-						      0, /* iso_number_packets */
-						      NULL, /* iso_packets */
-						      callback,
-						      user_data);
-	return submit_handle;
-}
-
-
-/**
- * Call to submit a USB Isochronous transfer to a pipe.
- *
- * @state:	    USB device state populated by
- *		    cvmx_usb_initialize().
- * @pipe_handle:
- *		    Handle to the pipe for the transfer.
- * @start_frame:
- *		    Number of frames into the future to schedule
- *		    this transaction.
- * @number_packets:
- *		    Number of sequential packets to transfer.
- *		    "packets" is a pointer to an array of this
- *		    many packet structures.
- * @packets:	    Description of each transfer packet as
- *		    defined by struct cvmx_usb_iso_packet. The array
- *		    pointed to here must stay valid until the
- *		    complete callback is called.
- * @buffer:	    Physical address of the data buffer in
- *		    memory. Note that this is NOT A POINTER, but
- *		    the full 64bit physical address of the
- *		    buffer. This may be zero if buffer_length is
- *		    zero.
- * @buffer_length:
- *		    Length of buffer in bytes.
- * @callback:	    Function to call when this transaction
- *		    completes. If the return value of this
- *		    function isn't an error, then this function
- *		    is guaranteed to be called when the
- *		    transaction completes. If this parameter is
- *		    NULL, then the generic callback registered
- *		    through cvmx_usb_register_callback is
- *		    called. If both are NULL, then there is no
- *		    way to know when a transaction completes.
- * @user_data:	    User supplied data returned when the
- *		    callback is called. This is only used if
- *		    callback in not NULL.
- *
- * Returns: A submitted transaction handle or negative on
- *	    failure. Negative values are error codes.
- */
-int cvmx_usb_submit_isochronous(struct cvmx_usb_state *state, int pipe_handle,
-				int start_frame,
-				int number_packets,
-				struct cvmx_usb_iso_packet packets[],
-				uint64_t buffer, int buffer_length,
-				cvmx_usb_callback_func_t callback,
-				void *user_data)
-{
-	int submit_handle;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
-
-	/* Pipe handle checking is done later in a common place */
-	if (unlikely(start_frame < 0))
-		return -EINVAL;
-	if (unlikely(number_packets < 1))
-		return -EINVAL;
-	if (unlikely(!packets))
-		return -EINVAL;
-	if (unlikely(!buffer))
-		return -EINVAL;
-	if (unlikely(buffer_length < 0))
-		return -EINVAL;
-
-	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
-						      CVMX_USB_TRANSFER_ISOCHRONOUS,
-						      buffer,
-						      buffer_length,
-						      0, /* control_header */
-						      start_frame,
-						      number_packets,
-						      packets,
-						      callback,
-						      user_data);
-	return submit_handle;
-}
-
-
-/**
- * Cancel one outstanding request in a pipe. Canceling a request
- * can fail if the transaction has already completed before cancel
- * is called. Even after a successful cancel call, it may take
- * a frame or two for the cvmx_usb_poll() function to call the
- * associated callback.
- *
- * @state:	 USB device state populated by
- *		 cvmx_usb_initialize().
- * @pipe_handle:
- *		 Pipe handle to cancel requests in.
- * @submit_handle:
- *		 Handle to transaction to cancel, returned by the submit
- *		 function.
- *
- * Returns: 0 or a negative error code.
- */
-int cvmx_usb_cancel(struct cvmx_usb_state *state, int pipe_handle, int submit_handle)
-{
-	struct cvmx_usb_transaction *transaction;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
-	struct cvmx_usb_pipe *pipe = usb->pipe + pipe_handle;
-
-	if (unlikely((pipe_handle < 0) || (pipe_handle >= MAX_PIPES)))
-		return -EINVAL;
-	if (unlikely((submit_handle < 0) || (submit_handle >= MAX_TRANSACTIONS)))
-		return -EINVAL;
-
-	/* Fail if the pipe isn't open */
-	if (unlikely((pipe->flags & __CVMX_USB_PIPE_FLAGS_OPEN) == 0))
-		return -EINVAL;
-
-	transaction = usb->transaction + submit_handle;
-
-	/* Fail if this transaction already completed */
-	if (unlikely((transaction->flags & __CVMX_USB_TRANSACTION_FLAGS_IN_USE) == 0))
-		return -EINVAL;
-
-	/*
-	 * If the transaction is the HEAD of the queue and scheduled. We need to
-	 * treat it special
-	 */
-	if ((pipe->head == transaction) &&
-		(pipe->flags & __CVMX_USB_PIPE_FLAGS_SCHEDULED)) {
-		union cvmx_usbcx_hccharx usbc_hcchar;
-
-		usb->pipe_for_channel[pipe->channel] = NULL;
-		pipe->flags &= ~__CVMX_USB_PIPE_FLAGS_SCHEDULED;
-
-		CVMX_SYNCW;
-
-		usbc_hcchar.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCCHARX(pipe->channel, usb->index));
-		/*
-		 * If the channel isn't enabled then the transaction already
-		 * completed.
-		 */
-		if (usbc_hcchar.s.chena) {
-			usbc_hcchar.s.chdis = 1;
-			__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCCHARX(pipe->channel, usb->index), usbc_hcchar.u32);
-		}
-	}
-	__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_CANCEL);
-	return 0;
-}
-
-
-/**
- * Cancel all outstanding requests in a pipe. Logically all this
- * does is call cvmx_usb_cancel() in a loop.
- *
- * @state:	 USB device state populated by
- *		 cvmx_usb_initialize().
- * @pipe_handle:
- *		 Pipe handle to cancel requests in.
- *
- * Returns: 0 or a negative error code.
- */
-int cvmx_usb_cancel_all(struct cvmx_usb_state *state, int pipe_handle)
-{
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
-	struct cvmx_usb_pipe *pipe = usb->pipe + pipe_handle;
-
-	if (unlikely((pipe_handle < 0) || (pipe_handle >= MAX_PIPES)))
-		return -EINVAL;
-
-	/* Fail if the pipe isn't open */
-	if (unlikely((pipe->flags & __CVMX_USB_PIPE_FLAGS_OPEN) == 0))
-		return -EINVAL;
-
-	/* Simply loop through and attempt to cancel each transaction */
-	while (pipe->head) {
-		int result = cvmx_usb_cancel(state, pipe_handle,
-			__cvmx_usb_get_submit_handle(usb, pipe->head));
-		if (unlikely(result != 0))
-			return result;
-	}
-	return 0;
-}
-
-
-/**
- * Close a pipe created with cvmx_usb_open_pipe().
- *
- * @state:	 USB device state populated by
- *		 cvmx_usb_initialize().
- * @pipe_handle:
- *		 Pipe handle to close.
- *
- * Returns: 0 or a negative error code. EBUSY is returned if the pipe has
- *	    outstanding transfers.
- */
-int cvmx_usb_close_pipe(struct cvmx_usb_state *state, int pipe_handle)
-{
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
-	struct cvmx_usb_pipe *pipe = usb->pipe + pipe_handle;
-
-	if (unlikely((pipe_handle < 0) || (pipe_handle >= MAX_PIPES)))
-		return -EINVAL;
-
-	/* Fail if the pipe isn't open */
-	if (unlikely((pipe->flags & __CVMX_USB_PIPE_FLAGS_OPEN) == 0))
-		return -EINVAL;
-
-	/* Fail if the pipe has pending transactions */
-	if (unlikely(pipe->head))
-		return -EBUSY;
-
-	pipe->flags = 0;
-	__cvmx_usb_remove_pipe(&usb->idle_pipes, pipe);
-	__cvmx_usb_append_pipe(&usb->free_pipes, pipe);
-
-	return 0;
-}
-
-
-/**
- * Register a function to be called when various USB events occur.
- *
- * @state:     USB device state populated by
- *	       cvmx_usb_initialize().
- * @reason:    Which event to register for.
- * @callback:  Function to call when the event occurs.
- * @user_data: User data parameter to the function.
- *
- * Returns: 0 or a negative error code.
- */
-int cvmx_usb_register_callback(struct cvmx_usb_state *state,
-			       enum cvmx_usb_callback reason,
-			       cvmx_usb_callback_func_t callback,
-			       void *user_data)
-{
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
-
-	if (unlikely(reason >= __CVMX_USB_CALLBACK_END))
-		return -EINVAL;
-	if (unlikely(!callback))
-		return -EINVAL;
-
-	usb->callback[reason] = callback;
-	usb->callback_data[reason] = user_data;
-
-	return 0;
-}
-
-
-/**
- * Get the current USB protocol level frame number. The frame
- * number is always in the range of 0-0x7ff.
- *
- * @state: USB device state populated by
- *	   cvmx_usb_initialize().
- *
- * Returns: USB frame number
- */
-int cvmx_usb_get_frame_number(struct cvmx_usb_state *state)
-{
-	int frame_number;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
-	union cvmx_usbcx_hfnum usbc_hfnum;
-
-	usbc_hfnum.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HFNUM(usb->index));
-	frame_number = usbc_hfnum.s.frnum;
-
-	return frame_number;
-}
-
-
-/**
- * Poll a channel for status
- *
- * @usb:     USB device
- * @channel: Channel to poll
- *
- * Returns: Zero on success
- */
-static int __cvmx_usb_poll_channel(struct cvmx_usb_internal_state *usb, int channel)
-{
-	union cvmx_usbcx_hcintx usbc_hcint;
-	union cvmx_usbcx_hctsizx usbc_hctsiz;
-	union cvmx_usbcx_hccharx usbc_hcchar;
-	struct cvmx_usb_pipe *pipe;
-	struct cvmx_usb_transaction *transaction;
-	int bytes_this_transfer;
-	int bytes_in_last_packet;
-	int packets_processed;
-	int buffer_space_left;
-
-	/* Read the interrupt status bits for the channel */
-	usbc_hcint.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCINTX(channel, usb->index));
-
-	if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA) {
-		usbc_hcchar.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCCHARX(channel, usb->index));
-
-		if (usbc_hcchar.s.chena && usbc_hcchar.s.chdis) {
-			/*
-			 * There seems to be a bug in CN31XX which can cause
-			 * interrupt IN transfers to get stuck until we do a
-			 * write of HCCHARX without changing things
-			 */
-			__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCCHARX(channel, usb->index), usbc_hcchar.u32);
-			return 0;
-		}
-
-		/*
-		 * In non DMA mode the channels don't halt themselves. We need
-		 * to manually disable channels that are left running
-		 */
-		if (!usbc_hcint.s.chhltd) {
-			if (usbc_hcchar.s.chena) {
-				union cvmx_usbcx_hcintmskx hcintmsk;
-				/* Disable all interrupts except CHHLTD */
-				hcintmsk.u32 = 0;
-				hcintmsk.s.chhltdmsk = 1;
-				__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCINTMSKX(channel, usb->index), hcintmsk.u32);
-				usbc_hcchar.s.chdis = 1;
-				__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCCHARX(channel, usb->index), usbc_hcchar.u32);
-				return 0;
-			} else if (usbc_hcint.s.xfercompl) {
-				/*
-				 * Successful IN/OUT with transfer complete.
-				 * Channel halt isn't needed.
-				 */
-			} else {
-				cvmx_dprintf("USB%d: Channel %d interrupt without halt\n", usb->index, channel);
-				return 0;
-			}
-		}
-	} else {
-		/*
-		 * There is are no interrupts that we need to process when the
-		 * channel is still running
-		 */
-		if (!usbc_hcint.s.chhltd)
-			return 0;
-	}
-
-	/* Disable the channel interrupts now that it is done */
-	__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCINTMSKX(channel, usb->index), 0);
-	usb->idle_hardware_channels |= (1<<channel);
-
-	/* Make sure this channel is tied to a valid pipe */
-	pipe = usb->pipe_for_channel[channel];
-	CVMX_PREFETCH(pipe, 0);
-	CVMX_PREFETCH(pipe, 128);
-	if (!pipe)
-		return 0;
-	transaction = pipe->head;
-	CVMX_PREFETCH(transaction, 0);
-
-	/*
-	 * Disconnect this pipe from the HW channel. Later the schedule
-	 * function will figure out which pipe needs to go
-	 */
-	usb->pipe_for_channel[channel] = NULL;
-	pipe->flags &= ~__CVMX_USB_PIPE_FLAGS_SCHEDULED;
-
-	/*
-	 * Read the channel config info so we can figure out how much data
-	 * transfered
-	 */
-	usbc_hcchar.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCCHARX(channel, usb->index));
-	usbc_hctsiz.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCTSIZX(channel, usb->index));
-
-	/*
-	 * Calculating the number of bytes successfully transferred is dependent
-	 * on the transfer direction
-	 */
-	packets_processed = transaction->pktcnt - usbc_hctsiz.s.pktcnt;
-	if (usbc_hcchar.s.epdir) {
-		/*
-		 * IN transactions are easy. For every byte received the
-		 * hardware decrements xfersize. All we need to do is subtract
-		 * the current value of xfersize from its starting value and we
-		 * know how many bytes were written to the buffer
-		 */
-		bytes_this_transfer = transaction->xfersize - usbc_hctsiz.s.xfersize;
-	} else {
-		/*
-		 * OUT transaction don't decrement xfersize. Instead pktcnt is
-		 * decremented on every successful packet send. The hardware
-		 * does this when it receives an ACK, or NYET. If it doesn't
-		 * receive one of these responses pktcnt doesn't change
-		 */
-		bytes_this_transfer = packets_processed * usbc_hcchar.s.mps;
-		/*
-		 * The last packet may not be a full transfer if we didn't have
-		 * enough data
-		 */
-		if (bytes_this_transfer > transaction->xfersize)
-			bytes_this_transfer = transaction->xfersize;
-	}
-	/* Figure out how many bytes were in the last packet of the transfer */
-	if (packets_processed)
-		bytes_in_last_packet = bytes_this_transfer - (packets_processed-1) * usbc_hcchar.s.mps;
-	else
-		bytes_in_last_packet = bytes_this_transfer;
-
-	/*
-	 * As a special case, setup transactions output the setup header, not
-	 * the user's data. For this reason we don't count setup data as bytes
-	 * transferred
-	 */
-	if ((transaction->stage == CVMX_USB_STAGE_SETUP) ||
-		(transaction->stage == CVMX_USB_STAGE_SETUP_SPLIT_COMPLETE))
-		bytes_this_transfer = 0;
-
-	/*
-	 * Add the bytes transferred to the running total. It is important that
-	 * bytes_this_transfer doesn't count any data that needs to be
-	 * retransmitted
-	 */
-	transaction->actual_bytes += bytes_this_transfer;
-	if (transaction->type == CVMX_USB_TRANSFER_ISOCHRONOUS)
-		buffer_space_left = transaction->iso_packets[0].length - transaction->actual_bytes;
-	else
-		buffer_space_left = transaction->buffer_length - transaction->actual_bytes;
-
-	/*
-	 * We need to remember the PID toggle state for the next transaction.
-	 * The hardware already updated it for the next transaction
-	 */
-	pipe->pid_toggle = !(usbc_hctsiz.s.pid == 0);
-
-	/*
-	 * For high speed bulk out, assume the next transaction will need to do
-	 * a ping before proceeding. If this isn't true the ACK processing below
-	 * will clear this flag
-	 */
-	if ((pipe->device_speed == CVMX_USB_SPEED_HIGH) &&
-		(pipe->transfer_type == CVMX_USB_TRANSFER_BULK) &&
-		(pipe->transfer_dir == CVMX_USB_DIRECTION_OUT))
-		pipe->flags |= __CVMX_USB_PIPE_FLAGS_NEED_PING;
-
-	if (usbc_hcint.s.stall) {
-		/*
-		 * STALL as a response means this transaction cannot be
-		 * completed because the device can't process transactions. Tell
-		 * the user. Any data that was transferred will be counted on
-		 * the actual bytes transferred
-		 */
-		pipe->pid_toggle = 0;
-		__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_STALL);
-	} else if (usbc_hcint.s.xacterr) {
-		/*
-		 * We know at least one packet worked if we get a ACK or NAK.
-		 * Reset the retry counter
-		 */
-		if (usbc_hcint.s.nak || usbc_hcint.s.ack)
-			transaction->retries = 0;
-		transaction->retries++;
-		if (transaction->retries > MAX_RETRIES) {
-			/*
-			 * XactErr as a response means the device signaled
-			 * something wrong with the transfer. For example, PID
-			 * toggle errors cause these
-			 */
-			__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_XACTERR);
-		} else {
-			/*
-			 * If this was a split then clear our split in progress
-			 * marker
-			 */
-			if (usb->active_split == transaction)
-				usb->active_split = NULL;
-			/*
-			 * Rewind to the beginning of the transaction by anding
-			 * off the split complete bit
-			 */
-			transaction->stage &= ~1;
-			pipe->split_sc_frame = -1;
-			pipe->next_tx_frame += pipe->interval;
-			if (pipe->next_tx_frame < usb->frame_number)
-				pipe->next_tx_frame = usb->frame_number + pipe->interval -
-						      (usb->frame_number - pipe->next_tx_frame) % pipe->interval;
-		}
-	} else if (usbc_hcint.s.bblerr) {
-		/* Babble Error (BblErr) */
-		__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_BABBLEERR);
-	} else if (usbc_hcint.s.datatglerr) {
-		/* We'll retry the exact same transaction again */
-		transaction->retries++;
-	} else if (usbc_hcint.s.nyet) {
-		/*
-		 * NYET as a response is only allowed in three cases: as a
-		 * response to a ping, as a response to a split transaction, and
-		 * as a response to a bulk out. The ping case is handled by
-		 * hardware, so we only have splits and bulk out
-		 */
-		if (!__cvmx_usb_pipe_needs_split(usb, pipe)) {
-			transaction->retries = 0;
-			/*
-			 * If there is more data to go then we need to try
-			 * again. Otherwise this transaction is complete
-			 */
-			if ((buffer_space_left == 0) || (bytes_in_last_packet < pipe->max_packet))
-				__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_SUCCESS);
-		} else {
-			/*
-			 * Split transactions retry the split complete 4 times
-			 * then rewind to the start split and do the entire
-			 * transactions again
-			 */
-			transaction->retries++;
-			if ((transaction->retries & 0x3) == 0) {
-				/*
-				 * Rewind to the beginning of the transaction by
-				 * anding off the split complete bit
-				 */
-				transaction->stage &= ~1;
-				pipe->split_sc_frame = -1;
-			}
-		}
-	} else if (usbc_hcint.s.ack) {
-		transaction->retries = 0;
-		/*
-		 * The ACK bit can only be checked after the other error bits.
-		 * This is because a multi packet transfer may succeed in a
-		 * number of packets and then get a different response on the
-		 * last packet. In this case both ACK and the last response bit
-		 * will be set. If none of the other response bits is set, then
-		 * the last packet must have been an ACK
-		 *
-		 * Since we got an ACK, we know we don't need to do a ping on
-		 * this pipe
-		 */
-		pipe->flags &= ~__CVMX_USB_PIPE_FLAGS_NEED_PING;
-
-		switch (transaction->type) {
-		case CVMX_USB_TRANSFER_CONTROL:
-			switch (transaction->stage) {
-			case CVMX_USB_STAGE_NON_CONTROL:
-			case CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE:
-				/* This should be impossible */
-				__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_ERROR);
-				break;
-			case CVMX_USB_STAGE_SETUP:
-				pipe->pid_toggle = 1;
-				if (__cvmx_usb_pipe_needs_split(usb, pipe))
-					transaction->stage = CVMX_USB_STAGE_SETUP_SPLIT_COMPLETE;
-				else {
-					union cvmx_usb_control_header *header =
-						cvmx_phys_to_ptr(transaction->control_header);
-					if (header->s.length)
-						transaction->stage = CVMX_USB_STAGE_DATA;
-					else
-						transaction->stage = CVMX_USB_STAGE_STATUS;
-				}
-				break;
-			case CVMX_USB_STAGE_SETUP_SPLIT_COMPLETE:
-				{
-					union cvmx_usb_control_header *header =
-						cvmx_phys_to_ptr(transaction->control_header);
-					if (header->s.length)
-						transaction->stage = CVMX_USB_STAGE_DATA;
-					else
-						transaction->stage = CVMX_USB_STAGE_STATUS;
-				}
-				break;
-			case CVMX_USB_STAGE_DATA:
-				if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
-					transaction->stage = CVMX_USB_STAGE_DATA_SPLIT_COMPLETE;
-					/*
-					 * For setup OUT data that are splits,
-					 * the hardware doesn't appear to count
-					 * transferred data. Here we manually
-					 * update the data transferred
-					 */
-					if (!usbc_hcchar.s.epdir) {
-						if (buffer_space_left < pipe->max_packet)
-							transaction->actual_bytes += buffer_space_left;
-						else
-							transaction->actual_bytes += pipe->max_packet;
-					}
-				} else if ((buffer_space_left == 0) || (bytes_in_last_packet < pipe->max_packet)) {
-					pipe->pid_toggle = 1;
-					transaction->stage = CVMX_USB_STAGE_STATUS;
-				}
-				break;
-			case CVMX_USB_STAGE_DATA_SPLIT_COMPLETE:
-				if ((buffer_space_left == 0) || (bytes_in_last_packet < pipe->max_packet)) {
-					pipe->pid_toggle = 1;
-					transaction->stage = CVMX_USB_STAGE_STATUS;
-				} else {
-					transaction->stage = CVMX_USB_STAGE_DATA;
-				}
-				break;
-			case CVMX_USB_STAGE_STATUS:
-				if (__cvmx_usb_pipe_needs_split(usb, pipe))
-					transaction->stage = CVMX_USB_STAGE_STATUS_SPLIT_COMPLETE;
-				else
-					__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_SUCCESS);
-				break;
-			case CVMX_USB_STAGE_STATUS_SPLIT_COMPLETE:
-				__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_SUCCESS);
-				break;
-			}
-			break;
-		case CVMX_USB_TRANSFER_BULK:
-		case CVMX_USB_TRANSFER_INTERRUPT:
-			/*
-			 * The only time a bulk transfer isn't complete when it
-			 * finishes with an ACK is during a split transaction.
-			 * For splits we need to continue the transfer if more
-			 * data is needed
-			 */
-			if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
-				if (transaction->stage == CVMX_USB_STAGE_NON_CONTROL)
-					transaction->stage = CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE;
-				else {
-					if (buffer_space_left && (bytes_in_last_packet == pipe->max_packet))
-						transaction->stage = CVMX_USB_STAGE_NON_CONTROL;
-					else {
-						if (transaction->type == CVMX_USB_TRANSFER_INTERRUPT)
-							pipe->next_tx_frame += pipe->interval;
-							__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_SUCCESS);
-					}
-				}
-			} else {
-				if ((pipe->device_speed == CVMX_USB_SPEED_HIGH) &&
-				    (pipe->transfer_type == CVMX_USB_TRANSFER_BULK) &&
-				    (pipe->transfer_dir == CVMX_USB_DIRECTION_OUT) &&
-				    (usbc_hcint.s.nak))
-					pipe->flags |= __CVMX_USB_PIPE_FLAGS_NEED_PING;
-				if (!buffer_space_left || (bytes_in_last_packet < pipe->max_packet)) {
-					if (transaction->type == CVMX_USB_TRANSFER_INTERRUPT)
-						pipe->next_tx_frame += pipe->interval;
-					__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_SUCCESS);
-				}
-			}
-			break;
-		case CVMX_USB_TRANSFER_ISOCHRONOUS:
-			if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
-				/*
-				 * ISOCHRONOUS OUT splits don't require a
-				 * complete split stage. Instead they use a
-				 * sequence of begin OUT splits to transfer the
-				 * data 188 bytes at a time. Once the transfer
-				 * is complete, the pipe sleeps until the next
-				 * schedule interval
-				 */
-				if (pipe->transfer_dir == CVMX_USB_DIRECTION_OUT) {
-					/*
-					 * If no space left or this wasn't a max
-					 * size packet then this transfer is
-					 * complete. Otherwise start it again to
-					 * send the next 188 bytes
-					 */
-					if (!buffer_space_left || (bytes_this_transfer < 188)) {
-						pipe->next_tx_frame += pipe->interval;
-						__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_SUCCESS);
-					}
-				} else {
-					if (transaction->stage == CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE) {
-						/*
-						 * We are in the incoming data
-						 * phase. Keep getting data
-						 * until we run out of space or
-						 * get a small packet
-						 */
-						if ((buffer_space_left == 0) || (bytes_in_last_packet < pipe->max_packet)) {
-							pipe->next_tx_frame += pipe->interval;
-							__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_SUCCESS);
-						}
-					} else
-						transaction->stage = CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE;
-				}
-			} else {
-				pipe->next_tx_frame += pipe->interval;
-				__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_SUCCESS);
-			}
-			break;
-		}
-	} else if (usbc_hcint.s.nak) {
-		/*
-		 * If this was a split then clear our split in progress marker.
-		 */
-		if (usb->active_split == transaction)
-			usb->active_split = NULL;
-		/*
-		 * NAK as a response means the device couldn't accept the
-		 * transaction, but it should be retried in the future. Rewind
-		 * to the beginning of the transaction by anding off the split
-		 * complete bit. Retry in the next interval
-		 */
-		transaction->retries = 0;
-		transaction->stage &= ~1;
-		pipe->next_tx_frame += pipe->interval;
-		if (pipe->next_tx_frame < usb->frame_number)
-			pipe->next_tx_frame = usb->frame_number + pipe->interval -
-				(usb->frame_number - pipe->next_tx_frame) % pipe->interval;
-	} else {
-		struct cvmx_usb_port_status port;
-		port = cvmx_usb_get_status((struct cvmx_usb_state *)usb);
-		if (port.port_enabled) {
-			/* We'll retry the exact same transaction again */
-			transaction->retries++;
-		} else {
-			/*
-			 * We get channel halted interrupts with no result bits
-			 * sets when the cable is unplugged
-			 */
-			__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_ERROR);
-		}
-	}
-	return 0;
-}
-
-
-/**
- * Poll the USB block for status and call all needed callback
- * handlers. This function is meant to be called in the interrupt
- * handler for the USB controller. It can also be called
- * periodically in a loop for non-interrupt based operation.
- *
- * @state:	USB device state populated by
- *		cvmx_usb_initialize().
- *
- * Returns: 0 or a negative error code.
- */
-int cvmx_usb_poll(struct cvmx_usb_state *state)
-{
-	union cvmx_usbcx_hfnum usbc_hfnum;
-	union cvmx_usbcx_gintsts usbc_gintsts;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
-
-	CVMX_PREFETCH(usb, 0);
-	CVMX_PREFETCH(usb, 1*128);
-	CVMX_PREFETCH(usb, 2*128);
-	CVMX_PREFETCH(usb, 3*128);
-	CVMX_PREFETCH(usb, 4*128);
-
-	/* Update the frame counter */
-	usbc_hfnum.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HFNUM(usb->index));
-	if ((usb->frame_number&0x3fff) > usbc_hfnum.s.frnum)
-		usb->frame_number += 0x4000;
-	usb->frame_number &= ~0x3fffull;
-	usb->frame_number |= usbc_hfnum.s.frnum;
-
-	/* Read the pending interrupts */
-	usbc_gintsts.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_GINTSTS(usb->index));
-
-	/* Clear the interrupts now that we know about them */
-	__cvmx_usb_write_csr32(usb, CVMX_USBCX_GINTSTS(usb->index), usbc_gintsts.u32);
-
-	if (usbc_gintsts.s.rxflvl) {
-		/*
-		 * RxFIFO Non-Empty (RxFLvl)
-		 * Indicates that there is at least one packet pending to be
-		 * read from the RxFIFO.
-		 *
-		 * In DMA mode this is handled by hardware
-		 */
-		if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)
-			__cvmx_usb_poll_rx_fifo(usb);
-	}
-	if (usbc_gintsts.s.ptxfemp || usbc_gintsts.s.nptxfemp) {
-		/* Fill the Tx FIFOs when not in DMA mode */
-		if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)
-			__cvmx_usb_poll_tx_fifo(usb);
-	}
-	if (usbc_gintsts.s.disconnint || usbc_gintsts.s.prtint) {
-		union cvmx_usbcx_hprt usbc_hprt;
-		/*
-		 * Disconnect Detected Interrupt (DisconnInt)
-		 * Asserted when a device disconnect is detected.
-		 *
-		 * Host Port Interrupt (PrtInt)
-		 * The core sets this bit to indicate a change in port status of
-		 * one of the O2P USB core ports in Host mode. The application
-		 * must read the Host Port Control and Status (HPRT) register to
-		 * determine the exact event that caused this interrupt. The
-		 * application must clear the appropriate status bit in the Host
-		 * Port Control and Status register to clear this bit.
-		 *
-		 * Call the user's port callback
-		 */
-		__cvmx_usb_perform_callback(usb, NULL, NULL,
-					    CVMX_USB_CALLBACK_PORT_CHANGED,
-					    CVMX_USB_COMPLETE_SUCCESS);
-		/* Clear the port change bits */
-		usbc_hprt.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HPRT(usb->index));
-		usbc_hprt.s.prtena = 0;
-		__cvmx_usb_write_csr32(usb, CVMX_USBCX_HPRT(usb->index), usbc_hprt.u32);
-	}
-	if (usbc_gintsts.s.hchint) {
-		/*
-		 * Host Channels Interrupt (HChInt)
-		 * The core sets this bit to indicate that an interrupt is
-		 * pending on one of the channels of the core (in Host mode).
-		 * The application must read the Host All Channels Interrupt
-		 * (HAINT) register to determine the exact number of the channel
-		 * on which the interrupt occurred, and then read the
-		 * corresponding Host Channel-n Interrupt (HCINTn) register to
-		 * determine the exact cause of the interrupt. The application
-		 * must clear the appropriate status bit in the HCINTn register
-		 * to clear this bit.
-		 */
-		union cvmx_usbcx_haint usbc_haint;
-		usbc_haint.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HAINT(usb->index));
-		while (usbc_haint.u32) {
-			int channel;
-
-			channel = __fls(usbc_haint.u32);
-			__cvmx_usb_poll_channel(usb, channel);
-			usbc_haint.u32 ^= 1<<channel;
-		}
-	}
-
-	__cvmx_usb_schedule(usb, usbc_gintsts.s.sof);
-
-	return 0;
-}
diff --git a/drivers/staging/octeon-usb/cvmx-usb.h b/drivers/staging/octeon-usb/cvmx-usb.h
deleted file mode 100644
index 7b7a542cbd95..000000000000
--- a/drivers/staging/octeon-usb/cvmx-usb.h
+++ /dev/null
@@ -1,521 +0,0 @@
-/***********************license start***************
- * Copyright (c) 2003-2010  Cavium Networks (support@cavium.com). All rights
- * reserved.
- *
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *
- *   * Redistributions in binary form must reproduce the above
- *     copyright notice, this list of conditions and the following
- *     disclaimer in the documentation and/or other materials provided
- *     with the distribution.
-
- *   * Neither the name of Cavium Networks nor the names of
- *     its contributors may be used to endorse or promote products
- *     derived from this software without specific prior written
- *     permission.
-
- * This Software, including technical data, may be subject to U.S. export
- * control laws, including the U.S. Export Administration Act and its associated
- * regulations, and may be subject to export or import  regulations in other
- * countries.
-
- * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
- * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR
- * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
- * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION
- * OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
- * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
- * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
- * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
- * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE  RISK ARISING OUT OF USE OR
- * PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
- ***********************license end**************************************/
-
-
-/**
- * "cvmx-usb.h" defines a set of low level USB functions to help
- * developers create Octeon USB drivers for various operating
- * systems. These functions provide a generic API to the Octeon
- * USB blocks, hiding the internal hardware specific
- * operations.
- *
- * At a high level the device driver needs to:
- *
- * - Call cvmx_usb_get_num_ports() to get the number of
- *   supported ports.
- * - Call cvmx_usb_initialize() for each Octeon USB port.
- * - Enable the port using cvmx_usb_enable().
- * - Either periodically, or in an interrupt handler, call
- *   cvmx_usb_poll() to service USB events.
- * - Manage pipes using cvmx_usb_open_pipe() and
- *   cvmx_usb_close_pipe().
- * - Manage transfers using cvmx_usb_submit_*() and
- *   cvmx_usb_cancel*().
- * - Shutdown USB on unload using cvmx_usb_shutdown().
- *
- * To monitor USB status changes, the device driver must use
- * cvmx_usb_register_callback() to register for events that it
- * is interested in. Below are a few hints on successfully
- * implementing a driver on top of this API.
- *
- * == Initialization ==
- *
- * When a driver is first loaded, it is normally not necessary
- * to bring up the USB port completely. Most operating systems
- * expect to initialize and enable the port in two independent
- * steps. Normally an operating system will probe hardware,
- * initialize anything found, and then enable the hardware.
- *
- * In the probe phase you should:
- * - Use cvmx_usb_get_num_ports() to determine the number of
- *   USB port to be supported.
- * - Allocate space for a struct cvmx_usb_state for each
- *   port.
- * - Tell the operating system about each port
- *
- * In the initialization phase you should:
- * - Use cvmx_usb_initialize() on each port.
- * - Do not call cvmx_usb_enable(). This leaves the USB port in
- *   the disabled state until the operating system is ready.
- *
- * Finally, in the enable phase you should:
- * - Call cvmx_usb_enable() on the appropriate port.
- * - Note that some operating system use a RESET instead of an
- *   enable call. To implement RESET, you should call
- *   cvmx_usb_disable() followed by cvmx_usb_enable().
- *
- * == Locking ==
- *
- * All of the functions in the cvmx-usb API assume exclusive
- * access to the USB hardware and internal data structures. This
- * means that the driver must provide locking as necessary.
- *
- * In the single CPU state it is normally enough to disable
- * interrupts before every call to cvmx_usb*() and enable them
- * again after the call is complete. Keep in mind that it is
- * very common for the callback handlers to make additional
- * calls into cvmx-usb, so the disable/enable must be protected
- * against recursion. As an example, the Linux kernel
- * local_irq_save() and local_irq_restore() are perfect for this
- * in the non SMP case.
- *
- * In the SMP case, locking is more complicated. For SMP you not
- * only need to disable interrupts on the local core, but also
- * take a lock to make sure that another core cannot call
- * cvmx-usb.
- *
- * == Port callback ==
- *
- * The port callback prototype needs to look as follows:
- *
- * void port_callback(struct cvmx_usb_state *usb,
- *                    enum cvmx_usb_callback reason,
- *                    enum cvmx_usb_complete status,
- *                    int pipe_handle,
- *                    int submit_handle,
- *                    int bytes_transferred,
- *                    void *user_data);
- * - "usb" is the struct cvmx_usb_state for the port.
- * - "reason" will always be CVMX_USB_CALLBACK_PORT_CHANGED.
- * - "status" will always be CVMX_USB_COMPLETE_SUCCESS.
- * - "pipe_handle" will always be -1.
- * - "submit_handle" will always be -1.
- * - "bytes_transferred" will always be 0.
- * - "user_data" is the void pointer originally passed along
- *   with the callback. Use this for any state information you
- *   need.
- *
- * The port callback will be called whenever the user plugs /
- * unplugs a device from the port. It will not be called when a
- * device is plugged / unplugged from a hub connected to the
- * root port. Normally all the callback needs to do is tell the
- * operating system to poll the root hub for status. Under
- * Linux, this is performed by calling usb_hcd_poll_rh_status().
- * In the Linux driver we use "user_data". to pass around the
- * Linux "hcd" structure. Once the port callback completes,
- * Linux automatically calls octeon_usb_hub_status_data() which
- * uses cvmx_usb_get_status() to determine the root port status.
- *
- * == Complete callback ==
- *
- * The completion callback prototype needs to look as follows:
- *
- * void complete_callback(struct cvmx_usb_state *usb,
- *                        enum cvmx_usb_callback reason,
- *                        enum cvmx_usb_complete status,
- *                        int pipe_handle,
- *                        int submit_handle,
- *                        int bytes_transferred,
- *                        void *user_data);
- * - "usb" is the struct cvmx_usb_state for the port.
- * - "reason" will always be CVMX_USB_CALLBACK_TRANSFER_COMPLETE.
- * - "status" will be one of the cvmx_usb_complete enumerations.
- * - "pipe_handle" is the handle to the pipe the transaction
- *   was originally submitted on.
- * - "submit_handle" is the handle returned by the original
- *   cvmx_usb_submit_* call.
- * - "bytes_transferred" is the number of bytes successfully
- *   transferred in the transaction. This will be zero on most
- *   error conditions.
- * - "user_data" is the void pointer originally passed along
- *   with the callback. Use this for any state information you
- *   need. For example, the Linux "urb" is stored in here in the
- *   Linux driver.
- *
- * In general your callback handler should use "status" and
- * "bytes_transferred" to tell the operating system the how the
- * transaction completed. Normally the pipe is not changed in
- * this callback.
- *
- * == Canceling transactions ==
- *
- * When a transaction is cancelled using cvmx_usb_cancel*(), the
- * actual length of time until the complete callback is called
- * can vary greatly. It may be called before cvmx_usb_cancel*()
- * returns, or it may be called a number of usb frames in the
- * future once the hardware frees the transaction. In either of
- * these cases, the complete handler will receive
- * CVMX_USB_COMPLETE_CANCEL.
- *
- * == Handling pipes ==
- *
- * USB "pipes" is a software construct created by this API to
- * enable the ordering of usb transactions to a device endpoint.
- * Octeon's underlying hardware doesn't have any concept
- * equivalent to "pipes". The hardware instead has eight
- * channels that can be used simultaneously to have up to eight
- * transaction in process at the same time. In order to maintain
- * ordering in a pipe, the transactions for a pipe will only be
- * active in one hardware channel at a time. From an API user's
- * perspective, this doesn't matter but it can be helpful to
- * keep this in mind when you are probing hardware while
- * debugging.
- *
- * Also keep in mind that usb transactions contain state
- * information about the previous transaction to the same
- * endpoint. Each transaction has a PID toggle that changes 0/1
- * between each sub packet. This is maintained in the pipe data
- * structures. For this reason, you generally cannot create and
- * destroy a pipe for every transaction. A sequence of
- * transaction to the same endpoint must use the same pipe.
- *
- * == Root Hub ==
- *
- * Some operating systems view the usb root port as a normal usb
- * hub. These systems attempt to control the root hub with
- * messages similar to the usb 2.0 spec for hub control and
- * status. For these systems it may be necessary to write
- * function to decode standard usb control messages into
- * equivalent cvmx-usb API calls.
- *
- * == Interrupts ==
- *
- * If you plan on using usb interrupts, cvmx_usb_poll() must be
- * called on every usb interrupt. It will read the usb state,
- * call any needed callbacks, and schedule transactions as
- * needed. Your device driver needs only to hookup an interrupt
- * handler and call cvmx_usb_poll(). Octeon's usb port 0 causes
- * CIU bit CIU_INT*_SUM0[USB] to be set (bit 56). For port 1,
- * CIU bit CIU_INT_SUM1[USB1] is set (bit 17). How these bits
- * are turned into interrupt numbers is operating system
- * specific. For Linux, there are the convenient defines
- * OCTEON_IRQ_USB0 and OCTEON_IRQ_USB1 for the IRQ numbers.
- *
- * If you aren't using interrupts, simple call cvmx_usb_poll()
- * in your main processing loop.
- */
-
-#ifndef __CVMX_USB_H__
-#define __CVMX_USB_H__
-
-/**
- * enum cvmx_usb_speed - the possible USB device speeds
- *
- * @CVMX_USB_SPEED_HIGH: Device is operation at 480Mbps
- * @CVMX_USB_SPEED_FULL: Device is operation at 12Mbps
- * @CVMX_USB_SPEED_LOW:  Device is operation at 1.5Mbps
- */
-enum cvmx_usb_speed {
-	CVMX_USB_SPEED_HIGH = 0,
-	CVMX_USB_SPEED_FULL = 1,
-	CVMX_USB_SPEED_LOW = 2,
-};
-
-/**
- * enum cvmx_usb_transfer - the possible USB transfer types
- *
- * @CVMX_USB_TRANSFER_CONTROL:	   USB transfer type control for hub and status
- *				   transfers
- * @CVMX_USB_TRANSFER_ISOCHRONOUS: USB transfer type isochronous for low
- *				   priority periodic transfers
- * @CVMX_USB_TRANSFER_BULK:	   USB transfer type bulk for large low priority
- *				   transfers
- * @CVMX_USB_TRANSFER_INTERRUPT:   USB transfer type interrupt for high priority
- *				   periodic transfers
- */
-enum cvmx_usb_transfer {
-	CVMX_USB_TRANSFER_CONTROL = 0,
-	CVMX_USB_TRANSFER_ISOCHRONOUS = 1,
-	CVMX_USB_TRANSFER_BULK = 2,
-	CVMX_USB_TRANSFER_INTERRUPT = 3,
-};
-
-/**
- * enum cvmx_usb_direction - the transfer directions
- *
- * @CVMX_USB_DIRECTION_OUT: Data is transferring from Octeon to the device/host
- * @CVMX_USB_DIRECTION_IN:  Data is transferring from the device/host to Octeon
- */
-enum cvmx_usb_direction {
-	CVMX_USB_DIRECTION_OUT,
-	CVMX_USB_DIRECTION_IN,
-};
-
-/**
- * enum cvmx_usb_complete - possible callback function status codes
- *
- * @CVMX_USB_COMPLETE_SUCCESS:	  The transaction / operation finished without
- *				  any errors
- * @CVMX_USB_COMPLETE_SHORT:	  FIXME: This is currently not implemented
- * @CVMX_USB_COMPLETE_CANCEL:	  The transaction was canceled while in flight
- *				  by a user call to cvmx_usb_cancel
- * @CVMX_USB_COMPLETE_ERROR:	  The transaction aborted with an unexpected
- *				  error status
- * @CVMX_USB_COMPLETE_STALL:	  The transaction received a USB STALL response
- *				  from the device
- * @CVMX_USB_COMPLETE_XACTERR:	  The transaction failed with an error from the
- *				  device even after a number of retries
- * @CVMX_USB_COMPLETE_DATATGLERR: The transaction failed with a data toggle
- *				  error even after a number of retries
- * @CVMX_USB_COMPLETE_BABBLEERR:  The transaction failed with a babble error
- * @CVMX_USB_COMPLETE_FRAMEERR:	  The transaction failed with a frame error
- *				  even after a number of retries
- */
-enum cvmx_usb_complete {
-	CVMX_USB_COMPLETE_SUCCESS,
-	CVMX_USB_COMPLETE_SHORT,
-	CVMX_USB_COMPLETE_CANCEL,
-	CVMX_USB_COMPLETE_ERROR,
-	CVMX_USB_COMPLETE_STALL,
-	CVMX_USB_COMPLETE_XACTERR,
-	CVMX_USB_COMPLETE_DATATGLERR,
-	CVMX_USB_COMPLETE_BABBLEERR,
-	CVMX_USB_COMPLETE_FRAMEERR,
-};
-
-/**
- * struct cvmx_usb_port_status - the USB port status information
- *
- * @port_enabled:	1 = Usb port is enabled, 0 = disabled
- * @port_over_current:	1 = Over current detected, 0 = Over current not
- *			detected. Octeon doesn't support over current detection.
- * @port_powered:	1 = Port power is being supplied to the device, 0 =
- *			power is off. Octeon doesn't support turning port power
- *			off.
- * @port_speed:		Current port speed.
- * @connected:		1 = A device is connected to the port, 0 = No device is
- *			connected.
- * @connect_change:	1 = Device connected state changed since the last set
- *			status call.
- */
-struct cvmx_usb_port_status {
-	uint32_t reserved		: 25;
-	uint32_t port_enabled		: 1;
-	uint32_t port_over_current	: 1;
-	uint32_t port_powered		: 1;
-	enum cvmx_usb_speed port_speed	: 2;
-	uint32_t connected		: 1;
-	uint32_t connect_change		: 1;
-};
-
-/**
- * union cvmx_usb_control_header - the structure of a Control packet header
- *
- * @s.request_type:	Bit 7 tells the direction: 1=IN, 0=OUT
- * @s.request		The standard usb request to make
- * @s.value		Value parameter for the request in little endian format
- * @s.index		Index for the request in little endian format
- * @s.length		Length of the data associated with this request in
- *			little endian format
- */
-union cvmx_usb_control_header {
-	uint64_t u64;
-	struct {
-		uint64_t request_type   : 8;
-		uint64_t request        : 8;
-		uint64_t value          : 16;
-		uint64_t index          : 16;
-		uint64_t length         : 16;
-	} s;
-};
-
-/**
- * struct cvmx_usb_iso_packet - descriptor for Isochronous packets
- *
- * @offset:	This is the offset in bytes into the main buffer where this data
- *		is stored.
- * @length:	This is the length in bytes of the data.
- * @status:	This is the status of this individual packet transfer.
- */
-struct cvmx_usb_iso_packet {
-	int offset;
-	int length;
-	enum cvmx_usb_complete status;
-};
-
-/**
- * enum cvmx_usb_callback - possible callback reasons for the USB API
- *
- * @CVMX_USB_CALLBACK_TRANSFER_COMPLETE: A callback of this type is called when
- *					 a submitted transfer completes. The
- *					 completion callback will be called even
- *					 if the transfer fails or is canceled.
- *					 The status parameter will contain
- *					 details of why he callback was called.
- * @CVMX_USB_CALLBACK_PORT_CHANGED:	 The status of the port changed. For
- *					 example, someone may have plugged a
- *					 device in. The status parameter
- *					 contains CVMX_USB_COMPLETE_SUCCESS. Use
- *					 cvmx_usb_get_status() to get the new
- *					 port status.
- * @__CVMX_USB_CALLBACK_END:		 Do not use. Used internally for array
- *					 bounds.
- */
-enum cvmx_usb_callback {
-	CVMX_USB_CALLBACK_TRANSFER_COMPLETE,
-	CVMX_USB_CALLBACK_PORT_CHANGED,
-	__CVMX_USB_CALLBACK_END
-};
-
-/**
- * USB state internal data. The contents of this structure
- * may change in future SDKs. No data in it should be referenced
- * by user's of this API.
- */
-struct cvmx_usb_state {
-	char data[65536];
-};
-
-/**
- * USB callback functions are always of the following type.
- * The parameters are as follows:
- *      - state = USB device state populated by
- *        cvmx_usb_initialize().
- *      - reason = The enum cvmx_usb_callback used to register
- *        the callback.
- *      - status = The enum cvmx_usb_complete representing the
- *        status code of a transaction.
- *      - pipe_handle = The Pipe that caused this callback, or
- *        -1 if this callback wasn't associated with a pipe.
- *      - submit_handle = Transfer submit handle causing this
- *        callback, or -1 if this callback wasn't associated
- *        with a transfer.
- *      - Actual number of bytes transfer.
- *      - user_data = The user pointer supplied to the
- *        function cvmx_usb_submit() or
- *        cvmx_usb_register_callback() */
-typedef void (*cvmx_usb_callback_func_t)(struct cvmx_usb_state *state,
-                                         enum cvmx_usb_callback reason,
-                                         enum cvmx_usb_complete status,
-                                         int pipe_handle, int submit_handle,
-                                         int bytes_transferred, void *user_data);
-
-/**
- * enum cvmx_usb_initialize_flags - flags used by the initialization function
- *
- * @CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_XI:    The USB port uses a 12MHz crystal
- *					      as clock source at USB_XO and
- *					      USB_XI.
- * @CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_GND:   The USB port uses 12/24/48MHz 2.5V
- *					      board clock source at USB_XO.
- *					      USB_XI should be tied to GND.
- * @CVMX_USB_INITIALIZE_FLAGS_CLOCK_MHZ_MASK: Mask for clock speed field
- * @CVMX_USB_INITIALIZE_FLAGS_CLOCK_12MHZ:    Speed of reference clock or
- *					      crystal
- * @CVMX_USB_INITIALIZE_FLAGS_CLOCK_24MHZ:    Speed of reference clock
- * @CVMX_USB_INITIALIZE_FLAGS_CLOCK_48MHZ:    Speed of reference clock
- * @CVMX_USB_INITIALIZE_FLAGS_NO_DMA:	      Disable DMA and used polled IO for
- *					      data transfer use for the USB
- */
-enum cvmx_usb_initialize_flags {
-	CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_XI		= 1 << 0,
-	CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_GND		= 1 << 1,
-	CVMX_USB_INITIALIZE_FLAGS_CLOCK_MHZ_MASK	= 3 << 3,
-	CVMX_USB_INITIALIZE_FLAGS_CLOCK_12MHZ		= 1 << 3,
-	CVMX_USB_INITIALIZE_FLAGS_CLOCK_24MHZ		= 2 << 3,
-	CVMX_USB_INITIALIZE_FLAGS_CLOCK_48MHZ		= 3 << 3,
-	/* Bits 3-4 used to encode the clock frequency */
-	CVMX_USB_INITIALIZE_FLAGS_NO_DMA		= 1 << 5,
-};
-
-/**
- * enum cvmx_usb_pipe_flags - internal flags for a pipe.
- *
- * @__CVMX_USB_PIPE_FLAGS_OPEN:	     Used internally to determine if a pipe is
- *				     open. Do not use.
- * @__CVMX_USB_PIPE_FLAGS_SCHEDULED: Used internally to determine if a pipe is
- *				     actively using hardware. Do not use.
- * @__CVMX_USB_PIPE_FLAGS_NEED_PING: Used internally to determine if a high
- *				     speed pipe is in the ping state. Do not
- *				     use.
- */
-enum cvmx_usb_pipe_flags {
-	__CVMX_USB_PIPE_FLAGS_OPEN	= 1 << 16,
-	__CVMX_USB_PIPE_FLAGS_SCHEDULED	= 1 << 17,
-	__CVMX_USB_PIPE_FLAGS_NEED_PING	= 1 << 18,
-};
-
-extern int cvmx_usb_get_num_ports(void);
-extern int cvmx_usb_initialize(struct cvmx_usb_state *state,
-			       int usb_port_number);
-extern int cvmx_usb_shutdown(struct cvmx_usb_state *state);
-extern int cvmx_usb_enable(struct cvmx_usb_state *state);
-extern int cvmx_usb_disable(struct cvmx_usb_state *state);
-extern struct cvmx_usb_port_status cvmx_usb_get_status(struct cvmx_usb_state *state);
-extern void cvmx_usb_set_status(struct cvmx_usb_state *state, struct cvmx_usb_port_status port_status);
-extern int cvmx_usb_open_pipe(struct cvmx_usb_state *state,
-                              int device_addr, int endpoint_num,
-                              enum cvmx_usb_speed device_speed, int max_packet,
-                              enum cvmx_usb_transfer transfer_type,
-                              enum cvmx_usb_direction transfer_dir, int interval,
-                              int multi_count, int hub_device_addr,
-                              int hub_port);
-extern int cvmx_usb_submit_bulk(struct cvmx_usb_state *state, int pipe_handle,
-                                uint64_t buffer, int buffer_length,
-                                cvmx_usb_callback_func_t callback,
-                                void *user_data);
-extern int cvmx_usb_submit_interrupt(struct cvmx_usb_state *state, int pipe_handle,
-                                     uint64_t buffer, int buffer_length,
-                                     cvmx_usb_callback_func_t callback,
-                                     void *user_data);
-extern int cvmx_usb_submit_control(struct cvmx_usb_state *state, int pipe_handle,
-                                   uint64_t control_header,
-                                   uint64_t buffer, int buffer_length,
-                                   cvmx_usb_callback_func_t callback,
-                                   void *user_data);
-
-extern int cvmx_usb_submit_isochronous(struct cvmx_usb_state *state, int pipe_handle,
-				       int start_frame,
-                                       int number_packets,
-                                       struct cvmx_usb_iso_packet packets[],
-                                       uint64_t buffer, int buffer_length,
-                                       cvmx_usb_callback_func_t callback,
-                                       void *user_data);
-extern int cvmx_usb_cancel(struct cvmx_usb_state *state, int pipe_handle,
-			   int submit_handle);
-extern int cvmx_usb_cancel_all(struct cvmx_usb_state *state, int pipe_handle);
-extern int cvmx_usb_close_pipe(struct cvmx_usb_state *state, int pipe_handle);
-extern int cvmx_usb_register_callback(struct cvmx_usb_state *state,
-				      enum cvmx_usb_callback reason,
-				      cvmx_usb_callback_func_t callback,
-				      void *user_data);
-extern int cvmx_usb_get_frame_number(struct cvmx_usb_state *state);
-extern int cvmx_usb_poll(struct cvmx_usb_state *state);
-
-#endif  /* __CVMX_USB_H__ */
diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 764a8df0a16e..478a903f2bce 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -4,6 +4,44 @@
  * for more details.
  *
  * Copyright (C) 2008 Cavium Networks
+ *
+ * Some parts of the code were originally released under BSD license:
+ *
+ * Copyright (c) 2003-2010 Cavium Networks (support@cavium.com). All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above
+ *     copyright notice, this list of conditions and the following
+ *     disclaimer in the documentation and/or other materials provided
+ *     with the distribution.
+ *
+ *   * Neither the name of Cavium Networks nor the names of
+ *     its contributors may be used to endorse or promote products
+ *     derived from this software without specific prior written
+ *     permission.
+ *
+ * This Software, including technical data, may be subject to U.S. export
+ * control laws, including the U.S. Export Administration Act and its associated
+ * regulations, and may be subject to export or import regulations in other
+ * countries.
+ *
+ * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
+ * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR
+ * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
+ * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION
+ * OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
+ * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
+ * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
+ * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
+ * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
+ * PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
  */
 #include <linux/kernel.h>
 #include <linux/module.h>
@@ -17,13 +55,482 @@
 #include <linux/delay.h>
 
 #include <asm/octeon/cvmx.h>
-#include "cvmx-usb.h"
 #include <asm/octeon/cvmx-iob-defs.h>
 
 #include <linux/usb/hcd.h>
 
 #include <linux/err.h>
 
+#include <asm/octeon/octeon.h>
+#include <asm/octeon/cvmx-helper.h>
+#include <asm/octeon/cvmx-sysinfo.h>
+#include <asm/octeon/cvmx-helper-board.h>
+
+#include "cvmx-usbcx-defs.h"
+#include "cvmx-usbnx-defs.h"
+
+/**
+ * enum cvmx_usb_speed - the possible USB device speeds
+ *
+ * @CVMX_USB_SPEED_HIGH: Device is operation at 480Mbps
+ * @CVMX_USB_SPEED_FULL: Device is operation at 12Mbps
+ * @CVMX_USB_SPEED_LOW:  Device is operation at 1.5Mbps
+ */
+enum cvmx_usb_speed {
+	CVMX_USB_SPEED_HIGH = 0,
+	CVMX_USB_SPEED_FULL = 1,
+	CVMX_USB_SPEED_LOW = 2,
+};
+
+/**
+ * enum cvmx_usb_transfer - the possible USB transfer types
+ *
+ * @CVMX_USB_TRANSFER_CONTROL:	   USB transfer type control for hub and status
+ *				   transfers
+ * @CVMX_USB_TRANSFER_ISOCHRONOUS: USB transfer type isochronous for low
+ *				   priority periodic transfers
+ * @CVMX_USB_TRANSFER_BULK:	   USB transfer type bulk for large low priority
+ *				   transfers
+ * @CVMX_USB_TRANSFER_INTERRUPT:   USB transfer type interrupt for high priority
+ *				   periodic transfers
+ */
+enum cvmx_usb_transfer {
+	CVMX_USB_TRANSFER_CONTROL = 0,
+	CVMX_USB_TRANSFER_ISOCHRONOUS = 1,
+	CVMX_USB_TRANSFER_BULK = 2,
+	CVMX_USB_TRANSFER_INTERRUPT = 3,
+};
+
+/**
+ * enum cvmx_usb_direction - the transfer directions
+ *
+ * @CVMX_USB_DIRECTION_OUT: Data is transferring from Octeon to the device/host
+ * @CVMX_USB_DIRECTION_IN:  Data is transferring from the device/host to Octeon
+ */
+enum cvmx_usb_direction {
+	CVMX_USB_DIRECTION_OUT,
+	CVMX_USB_DIRECTION_IN,
+};
+
+/**
+ * enum cvmx_usb_complete - possible callback function status codes
+ *
+ * @CVMX_USB_COMPLETE_SUCCESS:	  The transaction / operation finished without
+ *				  any errors
+ * @CVMX_USB_COMPLETE_SHORT:	  FIXME: This is currently not implemented
+ * @CVMX_USB_COMPLETE_CANCEL:	  The transaction was canceled while in flight
+ *				  by a user call to cvmx_usb_cancel
+ * @CVMX_USB_COMPLETE_ERROR:	  The transaction aborted with an unexpected
+ *				  error status
+ * @CVMX_USB_COMPLETE_STALL:	  The transaction received a USB STALL response
+ *				  from the device
+ * @CVMX_USB_COMPLETE_XACTERR:	  The transaction failed with an error from the
+ *				  device even after a number of retries
+ * @CVMX_USB_COMPLETE_DATATGLERR: The transaction failed with a data toggle
+ *				  error even after a number of retries
+ * @CVMX_USB_COMPLETE_BABBLEERR:  The transaction failed with a babble error
+ * @CVMX_USB_COMPLETE_FRAMEERR:	  The transaction failed with a frame error
+ *				  even after a number of retries
+ */
+enum cvmx_usb_complete {
+	CVMX_USB_COMPLETE_SUCCESS,
+	CVMX_USB_COMPLETE_SHORT,
+	CVMX_USB_COMPLETE_CANCEL,
+	CVMX_USB_COMPLETE_ERROR,
+	CVMX_USB_COMPLETE_STALL,
+	CVMX_USB_COMPLETE_XACTERR,
+	CVMX_USB_COMPLETE_DATATGLERR,
+	CVMX_USB_COMPLETE_BABBLEERR,
+	CVMX_USB_COMPLETE_FRAMEERR,
+};
+
+/**
+ * struct cvmx_usb_port_status - the USB port status information
+ *
+ * @port_enabled:	1 = Usb port is enabled, 0 = disabled
+ * @port_over_current:	1 = Over current detected, 0 = Over current not
+ *			detected. Octeon doesn't support over current detection.
+ * @port_powered:	1 = Port power is being supplied to the device, 0 =
+ *			power is off. Octeon doesn't support turning port power
+ *			off.
+ * @port_speed:		Current port speed.
+ * @connected:		1 = A device is connected to the port, 0 = No device is
+ *			connected.
+ * @connect_change:	1 = Device connected state changed since the last set
+ *			status call.
+ */
+struct cvmx_usb_port_status {
+	uint32_t reserved		: 25;
+	uint32_t port_enabled		: 1;
+	uint32_t port_over_current	: 1;
+	uint32_t port_powered		: 1;
+	enum cvmx_usb_speed port_speed	: 2;
+	uint32_t connected		: 1;
+	uint32_t connect_change		: 1;
+};
+
+/**
+ * union cvmx_usb_control_header - the structure of a Control packet header
+ *
+ * @s.request_type:	Bit 7 tells the direction: 1=IN, 0=OUT
+ * @s.request		The standard usb request to make
+ * @s.value		Value parameter for the request in little endian format
+ * @s.index		Index for the request in little endian format
+ * @s.length		Length of the data associated with this request in
+ *			little endian format
+ */
+union cvmx_usb_control_header {
+	uint64_t u64;
+	struct {
+		uint64_t request_type   : 8;
+		uint64_t request        : 8;
+		uint64_t value          : 16;
+		uint64_t index          : 16;
+		uint64_t length         : 16;
+	} s;
+};
+
+/**
+ * struct cvmx_usb_iso_packet - descriptor for Isochronous packets
+ *
+ * @offset:	This is the offset in bytes into the main buffer where this data
+ *		is stored.
+ * @length:	This is the length in bytes of the data.
+ * @status:	This is the status of this individual packet transfer.
+ */
+struct cvmx_usb_iso_packet {
+	int offset;
+	int length;
+	enum cvmx_usb_complete status;
+};
+
+/**
+ * enum cvmx_usb_callback - possible callback reasons for the USB API
+ *
+ * @CVMX_USB_CALLBACK_TRANSFER_COMPLETE: A callback of this type is called when
+ *					 a submitted transfer completes. The
+ *					 completion callback will be called even
+ *					 if the transfer fails or is canceled.
+ *					 The status parameter will contain
+ *					 details of why he callback was called.
+ * @CVMX_USB_CALLBACK_PORT_CHANGED:	 The status of the port changed. For
+ *					 example, someone may have plugged a
+ *					 device in. The status parameter
+ *					 contains CVMX_USB_COMPLETE_SUCCESS. Use
+ *					 cvmx_usb_get_status() to get the new
+ *					 port status.
+ * @__CVMX_USB_CALLBACK_END:		 Do not use. Used internally for array
+ *					 bounds.
+ */
+enum cvmx_usb_callback {
+	CVMX_USB_CALLBACK_TRANSFER_COMPLETE,
+	CVMX_USB_CALLBACK_PORT_CHANGED,
+	__CVMX_USB_CALLBACK_END
+};
+
+/**
+ * USB state internal data. The contents of this structure
+ * may change in future SDKs. No data in it should be referenced
+ * by user's of this API.
+ */
+struct cvmx_usb_state {
+	char data[65536];
+};
+
+/**
+ * USB callback functions are always of the following type.
+ * The parameters are as follows:
+ *      - state = USB device state populated by
+ *        cvmx_usb_initialize().
+ *      - reason = The enum cvmx_usb_callback used to register
+ *        the callback.
+ *      - status = The enum cvmx_usb_complete representing the
+ *        status code of a transaction.
+ *      - pipe_handle = The Pipe that caused this callback, or
+ *        -1 if this callback wasn't associated with a pipe.
+ *      - submit_handle = Transfer submit handle causing this
+ *        callback, or -1 if this callback wasn't associated
+ *        with a transfer.
+ *      - Actual number of bytes transfer.
+ *      - user_data = The user pointer supplied to the
+ *        function cvmx_usb_submit() or
+ *        cvmx_usb_register_callback() */
+typedef void (*cvmx_usb_callback_func_t)(struct cvmx_usb_state *state,
+                                         enum cvmx_usb_callback reason,
+                                         enum cvmx_usb_complete status,
+                                         int pipe_handle, int submit_handle,
+                                         int bytes_transferred, void *user_data);
+
+/**
+ * enum cvmx_usb_initialize_flags - flags used by the initialization function
+ *
+ * @CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_XI:    The USB port uses a 12MHz crystal
+ *					      as clock source at USB_XO and
+ *					      USB_XI.
+ * @CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_GND:   The USB port uses 12/24/48MHz 2.5V
+ *					      board clock source at USB_XO.
+ *					      USB_XI should be tied to GND.
+ * @CVMX_USB_INITIALIZE_FLAGS_CLOCK_MHZ_MASK: Mask for clock speed field
+ * @CVMX_USB_INITIALIZE_FLAGS_CLOCK_12MHZ:    Speed of reference clock or
+ *					      crystal
+ * @CVMX_USB_INITIALIZE_FLAGS_CLOCK_24MHZ:    Speed of reference clock
+ * @CVMX_USB_INITIALIZE_FLAGS_CLOCK_48MHZ:    Speed of reference clock
+ * @CVMX_USB_INITIALIZE_FLAGS_NO_DMA:	      Disable DMA and used polled IO for
+ *					      data transfer use for the USB
+ */
+enum cvmx_usb_initialize_flags {
+	CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_XI		= 1 << 0,
+	CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_GND		= 1 << 1,
+	CVMX_USB_INITIALIZE_FLAGS_CLOCK_MHZ_MASK	= 3 << 3,
+	CVMX_USB_INITIALIZE_FLAGS_CLOCK_12MHZ		= 1 << 3,
+	CVMX_USB_INITIALIZE_FLAGS_CLOCK_24MHZ		= 2 << 3,
+	CVMX_USB_INITIALIZE_FLAGS_CLOCK_48MHZ		= 3 << 3,
+	/* Bits 3-4 used to encode the clock frequency */
+	CVMX_USB_INITIALIZE_FLAGS_NO_DMA		= 1 << 5,
+};
+
+/**
+ * enum cvmx_usb_pipe_flags - internal flags for a pipe.
+ *
+ * @__CVMX_USB_PIPE_FLAGS_OPEN:	     Used internally to determine if a pipe is
+ *				     open. Do not use.
+ * @__CVMX_USB_PIPE_FLAGS_SCHEDULED: Used internally to determine if a pipe is
+ *				     actively using hardware. Do not use.
+ * @__CVMX_USB_PIPE_FLAGS_NEED_PING: Used internally to determine if a high
+ *				     speed pipe is in the ping state. Do not
+ *				     use.
+ */
+enum cvmx_usb_pipe_flags {
+	__CVMX_USB_PIPE_FLAGS_OPEN	= 1 << 16,
+	__CVMX_USB_PIPE_FLAGS_SCHEDULED	= 1 << 17,
+	__CVMX_USB_PIPE_FLAGS_NEED_PING	= 1 << 18,
+};
+
+/* Normal prefetch that use the pref instruction. */
+#define CVMX_PREFETCH(address, offset) asm volatile ("pref %[type], %[off](%[rbase])" : : [rbase] "d" (address), [off] "I" (offset), [type] "n" (0))
+
+/* Maximum number of times to retry failed transactions */
+#define MAX_RETRIES		3
+
+/* Maximum number of pipes that can be open at once */
+#define MAX_PIPES		32
+
+/* Maximum number of outstanding transactions across all pipes */
+#define MAX_TRANSACTIONS	256
+
+/* Maximum number of hardware channels supported by the USB block */
+#define MAX_CHANNELS		8
+
+/* The highest valid USB device address */
+#define MAX_USB_ADDRESS		127
+
+/* The highest valid USB endpoint number */
+#define MAX_USB_ENDPOINT	15
+
+/* The highest valid port number on a hub */
+#define MAX_USB_HUB_PORT	15
+
+/*
+ * The low level hardware can transfer a maximum of this number of bytes in each
+ * transfer. The field is 19 bits wide
+ */
+#define MAX_TRANSFER_BYTES	((1<<19)-1)
+
+/*
+ * The low level hardware can transfer a maximum of this number of packets in
+ * each transfer. The field is 10 bits wide
+ */
+#define MAX_TRANSFER_PACKETS	((1<<10)-1)
+
+enum cvmx_usb_transaction_flags {
+	__CVMX_USB_TRANSACTION_FLAGS_IN_USE = 1<<16,
+};
+
+enum {
+	USB_CLOCK_TYPE_REF_12,
+	USB_CLOCK_TYPE_REF_24,
+	USB_CLOCK_TYPE_REF_48,
+	USB_CLOCK_TYPE_CRYSTAL_12,
+};
+
+/**
+ * Logical transactions may take numerous low level
+ * transactions, especially when splits are concerned. This
+ * enum represents all of the possible stages a transaction can
+ * be in. Note that split completes are always even. This is so
+ * the NAK handler can backup to the previous low level
+ * transaction with a simple clearing of bit 0.
+ */
+enum cvmx_usb_stage {
+	CVMX_USB_STAGE_NON_CONTROL,
+	CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE,
+	CVMX_USB_STAGE_SETUP,
+	CVMX_USB_STAGE_SETUP_SPLIT_COMPLETE,
+	CVMX_USB_STAGE_DATA,
+	CVMX_USB_STAGE_DATA_SPLIT_COMPLETE,
+	CVMX_USB_STAGE_STATUS,
+	CVMX_USB_STAGE_STATUS_SPLIT_COMPLETE,
+};
+
+/**
+ * struct cvmx_usb_transaction - describes each pending USB transaction
+ *				 regardless of type. These are linked together
+ *				 to form a list of pending requests for a pipe.
+ *
+ * @prev:		Transaction before this one in the pipe.
+ * @next:		Transaction after this one in the pipe.
+ * @type:		Type of transaction, duplicated of the pipe.
+ * @flags:		State flags for this transaction.
+ * @buffer:		User's physical buffer address to read/write.
+ * @buffer_length:	Size of the user's buffer in bytes.
+ * @control_header:	For control transactions, physical address of the 8
+ *			byte standard header.
+ * @iso_start_frame:	For ISO transactions, the starting frame number.
+ * @iso_number_packets:	For ISO transactions, the number of packets in the
+ *			request.
+ * @iso_packets:	For ISO transactions, the sub packets in the request.
+ * @actual_bytes:	Actual bytes transfer for this transaction.
+ * @stage:		For control transactions, the current stage.
+ * @callback:		User's callback function when complete.
+ * @callback_data:	User's data.
+ */
+struct cvmx_usb_transaction {
+	struct cvmx_usb_transaction *prev;
+	struct cvmx_usb_transaction *next;
+	enum cvmx_usb_transfer type;
+	enum cvmx_usb_transaction_flags flags;
+	uint64_t buffer;
+	int buffer_length;
+	uint64_t control_header;
+	int iso_start_frame;
+	int iso_number_packets;
+	struct cvmx_usb_iso_packet *iso_packets;
+	int xfersize;
+	int pktcnt;
+	int retries;
+	int actual_bytes;
+	enum cvmx_usb_stage stage;
+	cvmx_usb_callback_func_t callback;
+	void *callback_data;
+};
+
+/**
+ * struct cvmx_usb_pipe - a pipe represents a virtual connection between Octeon
+ *			  and some USB device. It contains a list of pending
+ *			  request to the device.
+ *
+ * @prev:		Pipe before this one in the list
+ * @next:		Pipe after this one in the list
+ * @head:		The first pending transaction
+ * @tail:		The last pending transaction
+ * @interval:		For periodic pipes, the interval between packets in
+ *			frames
+ * @next_tx_frame:	The next frame this pipe is allowed to transmit on
+ * @flags:		State flags for this pipe
+ * @device_speed:	Speed of device connected to this pipe
+ * @transfer_type:	Type of transaction supported by this pipe
+ * @transfer_dir:	IN or OUT. Ignored for Control
+ * @multi_count:	Max packet in a row for the device
+ * @max_packet:		The device's maximum packet size in bytes
+ * @device_addr:	USB device address at other end of pipe
+ * @endpoint_num:	USB endpoint number at other end of pipe
+ * @hub_device_addr:	Hub address this device is connected to
+ * @hub_port:		Hub port this device is connected to
+ * @pid_toggle:		This toggles between 0/1 on every packet send to track
+ *			the data pid needed
+ * @channel:		Hardware DMA channel for this pipe
+ * @split_sc_frame:	The low order bits of the frame number the split
+ *			complete should be sent on
+ */
+struct cvmx_usb_pipe {
+	struct cvmx_usb_pipe *prev;
+	struct cvmx_usb_pipe *next;
+	struct cvmx_usb_transaction *head;
+	struct cvmx_usb_transaction *tail;
+	uint64_t interval;
+	uint64_t next_tx_frame;
+	enum cvmx_usb_pipe_flags flags;
+	enum cvmx_usb_speed device_speed;
+	enum cvmx_usb_transfer transfer_type;
+	enum cvmx_usb_direction transfer_dir;
+	int multi_count;
+	uint16_t max_packet;
+	uint8_t device_addr;
+	uint8_t endpoint_num;
+	uint8_t hub_device_addr;
+	uint8_t hub_port;
+	uint8_t pid_toggle;
+	uint8_t channel;
+	int8_t split_sc_frame;
+};
+
+/**
+ * struct cvmx_usb_pipe_list
+ *
+ * @head: Head of the list, or NULL if empty.
+ * @tail: Tail if the list, or NULL if empty.
+ */
+struct cvmx_usb_pipe_list {
+	struct cvmx_usb_pipe *head;
+	struct cvmx_usb_pipe *tail;
+};
+
+struct cvmx_usb_tx_fifo {
+	struct {
+		int channel;
+		int size;
+		uint64_t address;
+	} entry[MAX_CHANNELS+1];
+	int head;
+	int tail;
+};
+
+/**
+ * struct cvmx_usb_internal_state - the state of the USB block
+ *
+ * init_flags:		   Flags passed to initialize.
+ * index:		   Which USB block this is for.
+ * idle_hardware_channels: Bit set for every idle hardware channel.
+ * usbcx_hprt:		   Stored port status so we don't need to read a CSR to
+ *			   determine splits.
+ * pipe_for_channel:	   Map channels to pipes.
+ * free_transaction_head:  List of free transactions head.
+ * free_transaction_tail:  List of free transactions tail.
+ * pipe:		   Storage for pipes.
+ * transaction:		   Storage for transactions.
+ * callback:		   User global callbacks.
+ * callback_data:	   User data for each callback.
+ * indent:		   Used by debug output to indent functions.
+ * port_status:		   Last port status used for change notification.
+ * free_pipes:		   List of all pipes that are currently closed.
+ * idle_pipes:		   List of open pipes that have no transactions.
+ * active_pipes:	   Active pipes indexed by transfer type.
+ * frame_number:	   Increments every SOF interrupt for time keeping.
+ * active_split:	   Points to the current active split, or NULL.
+ */
+struct cvmx_usb_internal_state {
+	int init_flags;
+	int index;
+	int idle_hardware_channels;
+	union cvmx_usbcx_hprt usbcx_hprt;
+	struct cvmx_usb_pipe *pipe_for_channel[MAX_CHANNELS];
+	struct cvmx_usb_transaction *free_transaction_head;
+	struct cvmx_usb_transaction *free_transaction_tail;
+	struct cvmx_usb_pipe pipe[MAX_PIPES];
+	struct cvmx_usb_transaction transaction[MAX_TRANSACTIONS];
+	cvmx_usb_callback_func_t callback[__CVMX_USB_CALLBACK_END];
+	void *callback_data[__CVMX_USB_CALLBACK_END];
+	int indent;
+	struct cvmx_usb_port_status port_status;
+	struct cvmx_usb_pipe_list free_pipes;
+	struct cvmx_usb_pipe_list idle_pipes;
+	struct cvmx_usb_pipe_list active_pipes[4];
+	uint64_t frame_number;
+	struct cvmx_usb_transaction *active_split;
+	struct cvmx_usb_tx_fifo periodic;
+	struct cvmx_usb_tx_fifo nonperiodic;
+};
+
 struct octeon_hcd {
 	spinlock_t lock;
 	struct cvmx_usb_state usb;
@@ -31,6 +538,2914 @@ struct octeon_hcd {
 	struct list_head dequeue_list;
 };
 
+/* This macro spins on a field waiting for it to reach a value */
+#define CVMX_WAIT_FOR_FIELD32(address, type, field, op, value, timeout_usec)\
+	({int result;							    \
+	do {								    \
+		uint64_t done = cvmx_get_cycle() + (uint64_t)timeout_usec * \
+			octeon_get_clock_rate() / 1000000;		    \
+		type c;							    \
+		while (1) {						    \
+			c.u32 = __cvmx_usb_read_csr32(usb, address);	    \
+			if (c.s.field op (value)) {			    \
+				result = 0;				    \
+				break;					    \
+			} else if (cvmx_get_cycle() > done) {		    \
+				result = -1;				    \
+				break;					    \
+			} else						    \
+				cvmx_wait(100);				    \
+		}							    \
+	} while (0);							    \
+	result; })
+
+/*
+ * This macro logically sets a single field in a CSR. It does the sequence
+ * read, modify, and write
+ */
+#define USB_SET_FIELD32(address, type, field, value)		\
+	do {							\
+		type c;						\
+		c.u32 = __cvmx_usb_read_csr32(usb, address);	\
+		c.s.field = value;				\
+		__cvmx_usb_write_csr32(usb, address, c.u32);	\
+	} while (0)
+
+/* Returns the IO address to push/pop stuff data from the FIFOs */
+#define USB_FIFO_ADDRESS(channel, usb_index) (CVMX_USBCX_GOTGCTL(usb_index) + ((channel)+1)*0x1000)
+
+static int octeon_usb_get_clock_type(void)
+{
+	switch (cvmx_sysinfo_get()->board_type) {
+	case CVMX_BOARD_TYPE_BBGW_REF:
+	case CVMX_BOARD_TYPE_LANAI2_A:
+	case CVMX_BOARD_TYPE_LANAI2_U:
+	case CVMX_BOARD_TYPE_LANAI2_G:
+	case CVMX_BOARD_TYPE_UBNT_E100:
+		return USB_CLOCK_TYPE_CRYSTAL_12;
+	}
+	return USB_CLOCK_TYPE_REF_48;
+}
+
+/**
+ * Read a USB 32bit CSR. It performs the necessary address swizzle
+ * for 32bit CSRs and logs the value in a readable format if
+ * debugging is on.
+ *
+ * @usb:     USB block this access is for
+ * @address: 64bit address to read
+ *
+ * Returns: Result of the read
+ */
+static inline uint32_t __cvmx_usb_read_csr32(struct cvmx_usb_internal_state *usb,
+					     uint64_t address)
+{
+	uint32_t result = cvmx_read64_uint32(address ^ 4);
+	return result;
+}
+
+
+/**
+ * Write a USB 32bit CSR. It performs the necessary address
+ * swizzle for 32bit CSRs and logs the value in a readable format
+ * if debugging is on.
+ *
+ * @usb:     USB block this access is for
+ * @address: 64bit address to write
+ * @value:   Value to write
+ */
+static inline void __cvmx_usb_write_csr32(struct cvmx_usb_internal_state *usb,
+					  uint64_t address, uint32_t value)
+{
+	cvmx_write64_uint32(address ^ 4, value);
+	cvmx_read64_uint64(CVMX_USBNX_DMA0_INB_CHN0(usb->index));
+}
+
+
+/**
+ * Read a USB 64bit CSR. It logs the value in a readable format if
+ * debugging is on.
+ *
+ * @usb:     USB block this access is for
+ * @address: 64bit address to read
+ *
+ * Returns: Result of the read
+ */
+static inline uint64_t __cvmx_usb_read_csr64(struct cvmx_usb_internal_state *usb,
+					     uint64_t address)
+{
+	uint64_t result = cvmx_read64_uint64(address);
+	return result;
+}
+
+
+/**
+ * Write a USB 64bit CSR. It logs the value in a readable format
+ * if debugging is on.
+ *
+ * @usb:     USB block this access is for
+ * @address: 64bit address to write
+ * @value:   Value to write
+ */
+static inline void __cvmx_usb_write_csr64(struct cvmx_usb_internal_state *usb,
+					  uint64_t address, uint64_t value)
+{
+	cvmx_write64_uint64(address, value);
+}
+
+/**
+ * Return non zero if this pipe connects to a non HIGH speed
+ * device through a high speed hub.
+ *
+ * @usb:    USB block this access is for
+ * @pipe:   Pipe to check
+ *
+ * Returns: Non zero if we need to do split transactions
+ */
+static inline int __cvmx_usb_pipe_needs_split(struct cvmx_usb_internal_state *usb, struct cvmx_usb_pipe *pipe)
+{
+	return ((pipe->device_speed != CVMX_USB_SPEED_HIGH) && (usb->usbcx_hprt.s.prtspd == CVMX_USB_SPEED_HIGH));
+}
+
+
+/**
+ * Trivial utility function to return the correct PID for a pipe
+ *
+ * @pipe:   pipe to check
+ *
+ * Returns: PID for pipe
+ */
+static inline int __cvmx_usb_get_data_pid(struct cvmx_usb_pipe *pipe)
+{
+	if (pipe->pid_toggle)
+		return 2; /* Data1 */
+	else
+		return 0; /* Data0 */
+}
+
+
+/**
+ * Return the number of USB ports supported by this Octeon
+ * chip. If the chip doesn't support USB, or is not supported
+ * by this API, a zero will be returned. Most Octeon chips
+ * support one usb port, but some support two ports.
+ * cvmx_usb_initialize() must be called on independent
+ * struct cvmx_usb_state.
+ *
+ * Returns: Number of port, zero if usb isn't supported
+ */
+static int cvmx_usb_get_num_ports(void)
+{
+	int arch_ports = 0;
+
+	if (OCTEON_IS_MODEL(OCTEON_CN56XX))
+		arch_ports = 1;
+	else if (OCTEON_IS_MODEL(OCTEON_CN52XX))
+		arch_ports = 2;
+	else if (OCTEON_IS_MODEL(OCTEON_CN50XX))
+		arch_ports = 1;
+	else if (OCTEON_IS_MODEL(OCTEON_CN31XX))
+		arch_ports = 1;
+	else if (OCTEON_IS_MODEL(OCTEON_CN30XX))
+		arch_ports = 1;
+	else
+		arch_ports = 0;
+
+	return arch_ports;
+}
+
+
+/**
+ * Allocate a usb transaction for use
+ *
+ * @usb:	 USB device state populated by
+ *		 cvmx_usb_initialize().
+ *
+ * Returns: Transaction or NULL
+ */
+static inline struct cvmx_usb_transaction *__cvmx_usb_alloc_transaction(struct cvmx_usb_internal_state *usb)
+{
+	struct cvmx_usb_transaction *t;
+	t = usb->free_transaction_head;
+	if (t) {
+		usb->free_transaction_head = t->next;
+		if (!usb->free_transaction_head)
+			usb->free_transaction_tail = NULL;
+	}
+	if (t) {
+		memset(t, 0, sizeof(*t));
+		t->flags = __CVMX_USB_TRANSACTION_FLAGS_IN_USE;
+	}
+	return t;
+}
+
+
+/**
+ * Free a usb transaction
+ *
+ * @usb:	 USB device state populated by
+ *		 cvmx_usb_initialize().
+ * @transaction:
+ *		 Transaction to free
+ */
+static inline void __cvmx_usb_free_transaction(struct cvmx_usb_internal_state *usb,
+					       struct cvmx_usb_transaction *transaction)
+{
+	transaction->flags = 0;
+	transaction->prev = NULL;
+	transaction->next = NULL;
+	if (usb->free_transaction_tail)
+		usb->free_transaction_tail->next = transaction;
+	else
+		usb->free_transaction_head = transaction;
+	usb->free_transaction_tail = transaction;
+}
+
+
+/**
+ * Add a pipe to the tail of a list
+ * @list:   List to add pipe to
+ * @pipe:   Pipe to add
+ */
+static inline void __cvmx_usb_append_pipe(struct cvmx_usb_pipe_list *list, struct cvmx_usb_pipe *pipe)
+{
+	pipe->next = NULL;
+	pipe->prev = list->tail;
+	if (list->tail)
+		list->tail->next = pipe;
+	else
+		list->head = pipe;
+	list->tail = pipe;
+}
+
+
+/**
+ * Remove a pipe from a list
+ * @list:   List to remove pipe from
+ * @pipe:   Pipe to remove
+ */
+static inline void __cvmx_usb_remove_pipe(struct cvmx_usb_pipe_list *list, struct cvmx_usb_pipe *pipe)
+{
+	if (list->head == pipe) {
+		list->head = pipe->next;
+		pipe->next = NULL;
+		if (list->head)
+			list->head->prev = NULL;
+		else
+			list->tail = NULL;
+	} else if (list->tail == pipe) {
+		list->tail = pipe->prev;
+		list->tail->next = NULL;
+		pipe->prev = NULL;
+	} else {
+		pipe->prev->next = pipe->next;
+		pipe->next->prev = pipe->prev;
+		pipe->prev = NULL;
+		pipe->next = NULL;
+	}
+}
+
+
+/**
+ * Initialize a USB port for use. This must be called before any
+ * other access to the Octeon USB port is made. The port starts
+ * off in the disabled state.
+ *
+ * @state:	 Pointer to an empty struct cvmx_usb_state
+ *		 that will be populated by the initialize call.
+ *		 This structure is then passed to all other USB
+ *		 functions.
+ * @usb_port_number:
+ *		 Which Octeon USB port to initialize.
+ *
+ * Returns: 0 or a negative error code.
+ */
+static int cvmx_usb_initialize(struct cvmx_usb_state *state,
+			       int usb_port_number)
+{
+	union cvmx_usbnx_clk_ctl usbn_clk_ctl;
+	union cvmx_usbnx_usbp_ctl_status usbn_usbp_ctl_status;
+	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
+	enum cvmx_usb_initialize_flags flags = 0;
+
+	/* Make sure that state is large enough to store the internal state */
+	if (sizeof(*state) < sizeof(*usb))
+		return -EINVAL;
+	/* At first allow 0-1 for the usb port number */
+	if ((usb_port_number < 0) || (usb_port_number > 1))
+		return -EINVAL;
+	/* For all chips except 52XX there is only one port */
+	if (!OCTEON_IS_MODEL(OCTEON_CN52XX) && (usb_port_number > 0))
+		return -EINVAL;
+	/* Try to determine clock type automatically */
+	if (octeon_usb_get_clock_type() == USB_CLOCK_TYPE_CRYSTAL_12) {
+		/* Only 12 MHZ crystals are supported */
+		flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_XI;
+	} else {
+		flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_GND;
+
+		switch (octeon_usb_get_clock_type()) {
+		case USB_CLOCK_TYPE_REF_12:
+			flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_12MHZ;
+			break;
+		case USB_CLOCK_TYPE_REF_24:
+			flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_24MHZ;
+			break;
+		case USB_CLOCK_TYPE_REF_48:
+			flags |= CVMX_USB_INITIALIZE_FLAGS_CLOCK_48MHZ;
+			break;
+		default:
+			return -EINVAL;
+			break;
+		}
+	}
+
+	memset(usb, 0, sizeof(*usb));
+	usb->init_flags = flags;
+
+	/* Initialize the USB state structure */
+	{
+		int i;
+		usb->index = usb_port_number;
+
+		/* Initialize the transaction double linked list */
+		usb->free_transaction_head = NULL;
+		usb->free_transaction_tail = NULL;
+		for (i = 0; i < MAX_TRANSACTIONS; i++)
+			__cvmx_usb_free_transaction(usb, usb->transaction + i);
+		for (i = 0; i < MAX_PIPES; i++)
+			__cvmx_usb_append_pipe(&usb->free_pipes, usb->pipe + i);
+	}
+
+	/*
+	 * Power On Reset and PHY Initialization
+	 *
+	 * 1. Wait for DCOK to assert (nothing to do)
+	 *
+	 * 2a. Write USBN0/1_CLK_CTL[POR] = 1 and
+	 *     USBN0/1_CLK_CTL[HRST,PRST,HCLK_RST] = 0
+	 */
+	usbn_clk_ctl.u64 = __cvmx_usb_read_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index));
+	usbn_clk_ctl.s.por = 1;
+	usbn_clk_ctl.s.hrst = 0;
+	usbn_clk_ctl.s.prst = 0;
+	usbn_clk_ctl.s.hclk_rst = 0;
+	usbn_clk_ctl.s.enable = 0;
+	/*
+	 * 2b. Select the USB reference clock/crystal parameters by writing
+	 *     appropriate values to USBN0/1_CLK_CTL[P_C_SEL, P_RTYPE, P_COM_ON]
+	 */
+	if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_CLOCK_XO_GND) {
+		/*
+		 * The USB port uses 12/24/48MHz 2.5V board clock
+		 * source at USB_XO. USB_XI should be tied to GND.
+		 * Most Octeon evaluation boards require this setting
+		 */
+		if (OCTEON_IS_MODEL(OCTEON_CN3XXX)) {
+			/* From CN31XX,CN30XX manual */
+			usbn_clk_ctl.cn31xx.p_rclk  = 1;
+			usbn_clk_ctl.cn31xx.p_xenbn = 0;
+		} else if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN50XX))
+			/* From CN56XX,CN50XX manual */
+			usbn_clk_ctl.cn56xx.p_rtype = 2;
+		else
+			/* From CN52XX manual */
+			usbn_clk_ctl.cn52xx.p_rtype = 1;
+
+		switch (flags & CVMX_USB_INITIALIZE_FLAGS_CLOCK_MHZ_MASK) {
+		case CVMX_USB_INITIALIZE_FLAGS_CLOCK_12MHZ:
+			usbn_clk_ctl.s.p_c_sel = 0;
+			break;
+		case CVMX_USB_INITIALIZE_FLAGS_CLOCK_24MHZ:
+			usbn_clk_ctl.s.p_c_sel = 1;
+			break;
+		case CVMX_USB_INITIALIZE_FLAGS_CLOCK_48MHZ:
+			usbn_clk_ctl.s.p_c_sel = 2;
+			break;
+		}
+	} else {
+		/*
+		 * The USB port uses a 12MHz crystal as clock source
+		 * at USB_XO and USB_XI
+		 */
+		if (OCTEON_IS_MODEL(OCTEON_CN3XXX)) {
+			/* From CN31XX,CN30XX manual */
+			usbn_clk_ctl.cn31xx.p_rclk  = 1;
+			usbn_clk_ctl.cn31xx.p_xenbn = 1;
+		} else if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN50XX))
+			/* From CN56XX,CN50XX manual */
+			usbn_clk_ctl.cn56xx.p_rtype = 0;
+		else
+			/* From CN52XX manual */
+			usbn_clk_ctl.cn52xx.p_rtype = 0;
+
+		usbn_clk_ctl.s.p_c_sel = 0;
+	}
+	/*
+	 * 2c. Select the HCLK via writing USBN0/1_CLK_CTL[DIVIDE, DIVIDE2] and
+	 *     setting USBN0/1_CLK_CTL[ENABLE] = 1. Divide the core clock down
+	 *     such that USB is as close as possible to 125Mhz
+	 */
+	{
+		int divisor = (octeon_get_clock_rate()+125000000-1)/125000000;
+		/* Lower than 4 doesn't seem to work properly */
+		if (divisor < 4)
+			divisor = 4;
+		usbn_clk_ctl.s.divide = divisor;
+		usbn_clk_ctl.s.divide2 = 0;
+	}
+	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
+			       usbn_clk_ctl.u64);
+	/* 2d. Write USBN0/1_CLK_CTL[HCLK_RST] = 1 */
+	usbn_clk_ctl.s.hclk_rst = 1;
+	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
+			       usbn_clk_ctl.u64);
+	/* 2e.  Wait 64 core-clock cycles for HCLK to stabilize */
+	cvmx_wait(64);
+	/*
+	 * 3. Program the power-on reset field in the USBN clock-control
+	 *    register:
+	 *    USBN_CLK_CTL[POR] = 0
+	 */
+	usbn_clk_ctl.s.por = 0;
+	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
+			       usbn_clk_ctl.u64);
+	/* 4. Wait 1 ms for PHY clock to start */
+	mdelay(1);
+	/*
+	 * 5. Program the Reset input from automatic test equipment field in the
+	 *    USBP control and status register:
+	 *    USBN_USBP_CTL_STATUS[ATE_RESET] = 1
+	 */
+	usbn_usbp_ctl_status.u64 = __cvmx_usb_read_csr64(usb, CVMX_USBNX_USBP_CTL_STATUS(usb->index));
+	usbn_usbp_ctl_status.s.ate_reset = 1;
+	__cvmx_usb_write_csr64(usb, CVMX_USBNX_USBP_CTL_STATUS(usb->index),
+			       usbn_usbp_ctl_status.u64);
+	/* 6. Wait 10 cycles */
+	cvmx_wait(10);
+	/*
+	 * 7. Clear ATE_RESET field in the USBN clock-control register:
+	 *    USBN_USBP_CTL_STATUS[ATE_RESET] = 0
+	 */
+	usbn_usbp_ctl_status.s.ate_reset = 0;
+	__cvmx_usb_write_csr64(usb, CVMX_USBNX_USBP_CTL_STATUS(usb->index),
+			       usbn_usbp_ctl_status.u64);
+	/*
+	 * 8. Program the PHY reset field in the USBN clock-control register:
+	 *    USBN_CLK_CTL[PRST] = 1
+	 */
+	usbn_clk_ctl.s.prst = 1;
+	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
+			       usbn_clk_ctl.u64);
+	/*
+	 * 9. Program the USBP control and status register to select host or
+	 *    device mode. USBN_USBP_CTL_STATUS[HST_MODE] = 0 for host, = 1 for
+	 *    device
+	 */
+	usbn_usbp_ctl_status.s.hst_mode = 0;
+	__cvmx_usb_write_csr64(usb, CVMX_USBNX_USBP_CTL_STATUS(usb->index),
+			       usbn_usbp_ctl_status.u64);
+	/* 10. Wait 1 us */
+	udelay(1);
+	/*
+	 * 11. Program the hreset_n field in the USBN clock-control register:
+	 *     USBN_CLK_CTL[HRST] = 1
+	 */
+	usbn_clk_ctl.s.hrst = 1;
+	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
+			       usbn_clk_ctl.u64);
+	/* 12. Proceed to USB core initialization */
+	usbn_clk_ctl.s.enable = 1;
+	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
+			       usbn_clk_ctl.u64);
+	udelay(1);
+
+	/*
+	 * USB Core Initialization
+	 *
+	 * 1. Read USBC_GHWCFG1, USBC_GHWCFG2, USBC_GHWCFG3, USBC_GHWCFG4 to
+	 *    determine USB core configuration parameters.
+	 *
+	 *    Nothing needed
+	 *
+	 * 2. Program the following fields in the global AHB configuration
+	 *    register (USBC_GAHBCFG)
+	 *    DMA mode, USBC_GAHBCFG[DMAEn]: 1 = DMA mode, 0 = slave mode
+	 *    Burst length, USBC_GAHBCFG[HBSTLEN] = 0
+	 *    Nonperiodic TxFIFO empty level (slave mode only),
+	 *    USBC_GAHBCFG[NPTXFEMPLVL]
+	 *    Periodic TxFIFO empty level (slave mode only),
+	 *    USBC_GAHBCFG[PTXFEMPLVL]
+	 *    Global interrupt mask, USBC_GAHBCFG[GLBLINTRMSK] = 1
+	 */
+	{
+		union cvmx_usbcx_gahbcfg usbcx_gahbcfg;
+		/* Due to an errata, CN31XX doesn't support DMA */
+		if (OCTEON_IS_MODEL(OCTEON_CN31XX))
+			usb->init_flags |= CVMX_USB_INITIALIZE_FLAGS_NO_DMA;
+		usbcx_gahbcfg.u32 = 0;
+		usbcx_gahbcfg.s.dmaen = !(usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA);
+		if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)
+			/* Only use one channel with non DMA */
+			usb->idle_hardware_channels = 0x1;
+		else if (OCTEON_IS_MODEL(OCTEON_CN5XXX))
+			/* CN5XXX have an errata with channel 3 */
+			usb->idle_hardware_channels = 0xf7;
+		else
+			usb->idle_hardware_channels = 0xff;
+		usbcx_gahbcfg.s.hbstlen = 0;
+		usbcx_gahbcfg.s.nptxfemplvl = 1;
+		usbcx_gahbcfg.s.ptxfemplvl = 1;
+		usbcx_gahbcfg.s.glblintrmsk = 1;
+		__cvmx_usb_write_csr32(usb, CVMX_USBCX_GAHBCFG(usb->index),
+				       usbcx_gahbcfg.u32);
+	}
+	/*
+	 * 3. Program the following fields in USBC_GUSBCFG register.
+	 *    HS/FS timeout calibration, USBC_GUSBCFG[TOUTCAL] = 0
+	 *    ULPI DDR select, USBC_GUSBCFG[DDRSEL] = 0
+	 *    USB turnaround time, USBC_GUSBCFG[USBTRDTIM] = 0x5
+	 *    PHY low-power clock select, USBC_GUSBCFG[PHYLPWRCLKSEL] = 0
+	 */
+	{
+		union cvmx_usbcx_gusbcfg usbcx_gusbcfg;
+		usbcx_gusbcfg.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_GUSBCFG(usb->index));
+		usbcx_gusbcfg.s.toutcal = 0;
+		usbcx_gusbcfg.s.ddrsel = 0;
+		usbcx_gusbcfg.s.usbtrdtim = 0x5;
+		usbcx_gusbcfg.s.phylpwrclksel = 0;
+		__cvmx_usb_write_csr32(usb, CVMX_USBCX_GUSBCFG(usb->index),
+				       usbcx_gusbcfg.u32);
+	}
+	/*
+	 * 4. The software must unmask the following bits in the USBC_GINTMSK
+	 *    register.
+	 *    OTG interrupt mask, USBC_GINTMSK[OTGINTMSK] = 1
+	 *    Mode mismatch interrupt mask, USBC_GINTMSK[MODEMISMSK] = 1
+	 */
+	{
+		union cvmx_usbcx_gintmsk usbcx_gintmsk;
+		int channel;
+
+		usbcx_gintmsk.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_GINTMSK(usb->index));
+		usbcx_gintmsk.s.otgintmsk = 1;
+		usbcx_gintmsk.s.modemismsk = 1;
+		usbcx_gintmsk.s.hchintmsk = 1;
+		usbcx_gintmsk.s.sofmsk = 0;
+		/* We need RX FIFO interrupts if we don't have DMA */
+		if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)
+			usbcx_gintmsk.s.rxflvlmsk = 1;
+		__cvmx_usb_write_csr32(usb, CVMX_USBCX_GINTMSK(usb->index),
+				       usbcx_gintmsk.u32);
+
+		/*
+		 * Disable all channel interrupts. We'll enable them per channel
+		 * later.
+		 */
+		for (channel = 0; channel < 8; channel++)
+			__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCINTMSKX(channel, usb->index), 0);
+	}
+
+	{
+		/*
+		 * Host Port Initialization
+		 *
+		 * 1. Program the host-port interrupt-mask field to unmask,
+		 *    USBC_GINTMSK[PRTINT] = 1
+		 */
+		USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index), union cvmx_usbcx_gintmsk,
+				prtintmsk, 1);
+		USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index), union cvmx_usbcx_gintmsk,
+				disconnintmsk, 1);
+		/*
+		 * 2. Program the USBC_HCFG register to select full-speed host
+		 *    or high-speed host.
+		 */
+		{
+			union cvmx_usbcx_hcfg usbcx_hcfg;
+			usbcx_hcfg.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCFG(usb->index));
+			usbcx_hcfg.s.fslssupp = 0;
+			usbcx_hcfg.s.fslspclksel = 0;
+			__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCFG(usb->index), usbcx_hcfg.u32);
+		}
+		/*
+		 * 3. Program the port power bit to drive VBUS on the USB,
+		 *    USBC_HPRT[PRTPWR] = 1
+		 */
+		USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), union cvmx_usbcx_hprt, prtpwr, 1);
+
+		/*
+		 * Steps 4-15 from the manual are done later in the port enable
+		 */
+	}
+
+	return 0;
+}
+
+
+/**
+ * Shutdown a USB port after a call to cvmx_usb_initialize().
+ * The port should be disabled with all pipes closed when this
+ * function is called.
+ *
+ * @state: USB device state populated by
+ *	   cvmx_usb_initialize().
+ *
+ * Returns: 0 or a negative error code.
+ */
+static int cvmx_usb_shutdown(struct cvmx_usb_state *state)
+{
+	union cvmx_usbnx_clk_ctl usbn_clk_ctl;
+	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
+
+	/* Make sure all pipes are closed */
+	if (usb->idle_pipes.head ||
+		usb->active_pipes[CVMX_USB_TRANSFER_ISOCHRONOUS].head ||
+		usb->active_pipes[CVMX_USB_TRANSFER_INTERRUPT].head ||
+		usb->active_pipes[CVMX_USB_TRANSFER_CONTROL].head ||
+		usb->active_pipes[CVMX_USB_TRANSFER_BULK].head)
+		return -EBUSY;
+
+	/* Disable the clocks and put them in power on reset */
+	usbn_clk_ctl.u64 = __cvmx_usb_read_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index));
+	usbn_clk_ctl.s.enable = 1;
+	usbn_clk_ctl.s.por = 1;
+	usbn_clk_ctl.s.hclk_rst = 1;
+	usbn_clk_ctl.s.prst = 0;
+	usbn_clk_ctl.s.hrst = 0;
+	__cvmx_usb_write_csr64(usb, CVMX_USBNX_CLK_CTL(usb->index),
+			       usbn_clk_ctl.u64);
+	return 0;
+}
+
+
+/**
+ * Enable a USB port. After this call succeeds, the USB port is
+ * online and servicing requests.
+ *
+ * @state: USB device state populated by
+ *	   cvmx_usb_initialize().
+ *
+ * Returns: 0 or a negative error code.
+ */
+static int cvmx_usb_enable(struct cvmx_usb_state *state)
+{
+	union cvmx_usbcx_ghwcfg3 usbcx_ghwcfg3;
+	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
+
+	usb->usbcx_hprt.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HPRT(usb->index));
+
+	/*
+	 * If the port is already enabled the just return. We don't need to do
+	 * anything
+	 */
+	if (usb->usbcx_hprt.s.prtena)
+		return 0;
+
+	/* If there is nothing plugged into the port then fail immediately */
+	if (!usb->usbcx_hprt.s.prtconnsts) {
+		return -ETIMEDOUT;
+	}
+
+	/* Program the port reset bit to start the reset process */
+	USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), union cvmx_usbcx_hprt, prtrst, 1);
+
+	/*
+	 * Wait at least 50ms (high speed), or 10ms (full speed) for the reset
+	 * process to complete.
+	 */
+	mdelay(50);
+
+	/* Program the port reset bit to 0, USBC_HPRT[PRTRST] = 0 */
+	USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), union cvmx_usbcx_hprt, prtrst, 0);
+
+	/* Wait for the USBC_HPRT[PRTENA]. */
+	if (CVMX_WAIT_FOR_FIELD32(CVMX_USBCX_HPRT(usb->index), union cvmx_usbcx_hprt,
+				  prtena, ==, 1, 100000))
+		return -ETIMEDOUT;
+
+	/*
+	 * Read the port speed field to get the enumerated speed,
+	 * USBC_HPRT[PRTSPD].
+	 */
+	usb->usbcx_hprt.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HPRT(usb->index));
+	usbcx_ghwcfg3.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_GHWCFG3(usb->index));
+
+	/*
+	 * 13. Program the USBC_GRXFSIZ register to select the size of the
+	 *     receive FIFO (25%).
+	 */
+	USB_SET_FIELD32(CVMX_USBCX_GRXFSIZ(usb->index), union cvmx_usbcx_grxfsiz,
+			rxfdep, usbcx_ghwcfg3.s.dfifodepth / 4);
+	/*
+	 * 14. Program the USBC_GNPTXFSIZ register to select the size and the
+	 *     start address of the non- periodic transmit FIFO for nonperiodic
+	 *     transactions (50%).
+	 */
+	{
+		union cvmx_usbcx_gnptxfsiz siz;
+		siz.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_GNPTXFSIZ(usb->index));
+		siz.s.nptxfdep = usbcx_ghwcfg3.s.dfifodepth / 2;
+		siz.s.nptxfstaddr = usbcx_ghwcfg3.s.dfifodepth / 4;
+		__cvmx_usb_write_csr32(usb, CVMX_USBCX_GNPTXFSIZ(usb->index), siz.u32);
+	}
+	/*
+	 * 15. Program the USBC_HPTXFSIZ register to select the size and start
+	 *     address of the periodic transmit FIFO for periodic transactions
+	 *     (25%).
+	 */
+	{
+		union cvmx_usbcx_hptxfsiz siz;
+		siz.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HPTXFSIZ(usb->index));
+		siz.s.ptxfsize = usbcx_ghwcfg3.s.dfifodepth / 4;
+		siz.s.ptxfstaddr = 3 * usbcx_ghwcfg3.s.dfifodepth / 4;
+		__cvmx_usb_write_csr32(usb, CVMX_USBCX_HPTXFSIZ(usb->index), siz.u32);
+	}
+	/* Flush all FIFOs */
+	USB_SET_FIELD32(CVMX_USBCX_GRSTCTL(usb->index), union cvmx_usbcx_grstctl, txfnum, 0x10);
+	USB_SET_FIELD32(CVMX_USBCX_GRSTCTL(usb->index), union cvmx_usbcx_grstctl, txfflsh, 1);
+	CVMX_WAIT_FOR_FIELD32(CVMX_USBCX_GRSTCTL(usb->index), union cvmx_usbcx_grstctl,
+			      txfflsh, ==, 0, 100);
+	USB_SET_FIELD32(CVMX_USBCX_GRSTCTL(usb->index), union cvmx_usbcx_grstctl, rxfflsh, 1);
+	CVMX_WAIT_FOR_FIELD32(CVMX_USBCX_GRSTCTL(usb->index), union cvmx_usbcx_grstctl,
+			      rxfflsh, ==, 0, 100);
+
+	return 0;
+}
+
+
+/**
+ * Disable a USB port. After this call the USB port will not
+ * generate data transfers and will not generate events.
+ * Transactions in process will fail and call their
+ * associated callbacks.
+ *
+ * @state: USB device state populated by
+ *	   cvmx_usb_initialize().
+ *
+ * Returns: 0 or a negative error code.
+ */
+static int cvmx_usb_disable(struct cvmx_usb_state *state)
+{
+	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
+
+	/* Disable the port */
+	USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), union cvmx_usbcx_hprt, prtena, 1);
+	return 0;
+}
+
+
+/**
+ * Get the current state of the USB port. Use this call to
+ * determine if the usb port has anything connected, is enabled,
+ * or has some sort of error condition. The return value of this
+ * call has "changed" bits to signal of the value of some fields
+ * have changed between calls. These "changed" fields are based
+ * on the last call to cvmx_usb_set_status(). In order to clear
+ * them, you must update the status through cvmx_usb_set_status().
+ *
+ * @state: USB device state populated by
+ *	   cvmx_usb_initialize().
+ *
+ * Returns: Port status information
+ */
+static struct cvmx_usb_port_status cvmx_usb_get_status(struct cvmx_usb_state *state)
+{
+	union cvmx_usbcx_hprt usbc_hprt;
+	struct cvmx_usb_port_status result;
+	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
+
+	memset(&result, 0, sizeof(result));
+
+	usbc_hprt.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HPRT(usb->index));
+	result.port_enabled = usbc_hprt.s.prtena;
+	result.port_over_current = usbc_hprt.s.prtovrcurract;
+	result.port_powered = usbc_hprt.s.prtpwr;
+	result.port_speed = usbc_hprt.s.prtspd;
+	result.connected = usbc_hprt.s.prtconnsts;
+	result.connect_change = (result.connected != usb->port_status.connected);
+
+	return result;
+}
+
+
+/**
+ * Set the current state of the USB port. The status is used as
+ * a reference for the "changed" bits returned by
+ * cvmx_usb_get_status(). Other than serving as a reference, the
+ * status passed to this function is not used. No fields can be
+ * changed through this call.
+ *
+ * @state:	 USB device state populated by
+ *		 cvmx_usb_initialize().
+ * @port_status:
+ *		 Port status to set, most like returned by cvmx_usb_get_status()
+ */
+static void cvmx_usb_set_status(struct cvmx_usb_state *state,
+				struct cvmx_usb_port_status port_status)
+{
+	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
+	usb->port_status = port_status;
+	return;
+}
+
+
+/**
+ * Convert a USB transaction into a handle
+ *
+ * @usb:	 USB device state populated by
+ *		 cvmx_usb_initialize().
+ * @transaction:
+ *		 Transaction to get handle for
+ *
+ * Returns: Handle
+ */
+static inline int __cvmx_usb_get_submit_handle(struct cvmx_usb_internal_state *usb,
+					       struct cvmx_usb_transaction *transaction)
+{
+	return ((unsigned long)transaction - (unsigned long)usb->transaction) /
+			sizeof(*transaction);
+}
+
+
+/**
+ * Convert a USB pipe into a handle
+ *
+ * @usb:	 USB device state populated by
+ *		 cvmx_usb_initialize().
+ * @pipe:	 Pipe to get handle for
+ *
+ * Returns: Handle
+ */
+static inline int __cvmx_usb_get_pipe_handle(struct cvmx_usb_internal_state *usb,
+					     struct cvmx_usb_pipe *pipe)
+{
+	return ((unsigned long)pipe - (unsigned long)usb->pipe) / sizeof(*pipe);
+}
+
+
+/**
+ * Open a virtual pipe between the host and a USB device. A pipe
+ * must be opened before data can be transferred between a device
+ * and Octeon.
+ *
+ * @state:	     USB device state populated by
+ *		     cvmx_usb_initialize().
+ * @device_addr:
+ *		     USB device address to open the pipe to
+ *		     (0-127).
+ * @endpoint_num:
+ *		     USB endpoint number to open the pipe to
+ *		     (0-15).
+ * @device_speed:
+ *		     The speed of the device the pipe is going
+ *		     to. This must match the device's speed,
+ *		     which may be different than the port speed.
+ * @max_packet:	     The maximum packet length the device can
+ *		     transmit/receive (low speed=0-8, full
+ *		     speed=0-1023, high speed=0-1024). This value
+ *		     comes from the standard endpoint descriptor
+ *		     field wMaxPacketSize bits <10:0>.
+ * @transfer_type:
+ *		     The type of transfer this pipe is for.
+ * @transfer_dir:
+ *		     The direction the pipe is in. This is not
+ *		     used for control pipes.
+ * @interval:	     For ISOCHRONOUS and INTERRUPT transfers,
+ *		     this is how often the transfer is scheduled
+ *		     for. All other transfers should specify
+ *		     zero. The units are in frames (8000/sec at
+ *		     high speed, 1000/sec for full speed).
+ * @multi_count:
+ *		     For high speed devices, this is the maximum
+ *		     allowed number of packet per microframe.
+ *		     Specify zero for non high speed devices. This
+ *		     value comes from the standard endpoint descriptor
+ *		     field wMaxPacketSize bits <12:11>.
+ * @hub_device_addr:
+ *		     Hub device address this device is connected
+ *		     to. Devices connected directly to Octeon
+ *		     use zero. This is only used when the device
+ *		     is full/low speed behind a high speed hub.
+ *		     The address will be of the high speed hub,
+ *		     not and full speed hubs after it.
+ * @hub_port:	     Which port on the hub the device is
+ *		     connected. Use zero for devices connected
+ *		     directly to Octeon. Like hub_device_addr,
+ *		     this is only used for full/low speed
+ *		     devices behind a high speed hub.
+ *
+ * Returns: A non negative value is a pipe handle. Negative
+ *	    values are error codes.
+ */
+static int cvmx_usb_open_pipe(struct cvmx_usb_state *state,
+			      int device_addr, int endpoint_num,
+			      enum cvmx_usb_speed device_speed, int max_packet,
+			      enum cvmx_usb_transfer transfer_type,
+			      enum cvmx_usb_direction transfer_dir,
+			      int interval, int multi_count,
+			      int hub_device_addr, int hub_port)
+{
+	struct cvmx_usb_pipe *pipe;
+	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
+
+	if (unlikely((device_addr < 0) || (device_addr > MAX_USB_ADDRESS)))
+		return -EINVAL;
+	if (unlikely((endpoint_num < 0) || (endpoint_num > MAX_USB_ENDPOINT)))
+		return -EINVAL;
+	if (unlikely(device_speed > CVMX_USB_SPEED_LOW))
+		return -EINVAL;
+	if (unlikely((max_packet <= 0) || (max_packet > 1024)))
+		return -EINVAL;
+	if (unlikely(transfer_type > CVMX_USB_TRANSFER_INTERRUPT))
+		return -EINVAL;
+	if (unlikely((transfer_dir != CVMX_USB_DIRECTION_OUT) &&
+		(transfer_dir != CVMX_USB_DIRECTION_IN)))
+		return -EINVAL;
+	if (unlikely(interval < 0))
+		return -EINVAL;
+	if (unlikely((transfer_type == CVMX_USB_TRANSFER_CONTROL) && interval))
+		return -EINVAL;
+	if (unlikely(multi_count < 0))
+		return -EINVAL;
+	if (unlikely((device_speed != CVMX_USB_SPEED_HIGH) &&
+		(multi_count != 0)))
+		return -EINVAL;
+	if (unlikely((hub_device_addr < 0) || (hub_device_addr > MAX_USB_ADDRESS)))
+		return -EINVAL;
+	if (unlikely((hub_port < 0) || (hub_port > MAX_USB_HUB_PORT)))
+		return -EINVAL;
+
+	/* Find a free pipe */
+	pipe = usb->free_pipes.head;
+	if (!pipe)
+		return -ENOMEM;
+	__cvmx_usb_remove_pipe(&usb->free_pipes, pipe);
+	pipe->flags = __CVMX_USB_PIPE_FLAGS_OPEN;
+	if ((device_speed == CVMX_USB_SPEED_HIGH) &&
+		(transfer_dir == CVMX_USB_DIRECTION_OUT) &&
+		(transfer_type == CVMX_USB_TRANSFER_BULK))
+		pipe->flags |= __CVMX_USB_PIPE_FLAGS_NEED_PING;
+	pipe->device_addr = device_addr;
+	pipe->endpoint_num = endpoint_num;
+	pipe->device_speed = device_speed;
+	pipe->max_packet = max_packet;
+	pipe->transfer_type = transfer_type;
+	pipe->transfer_dir = transfer_dir;
+	/*
+	 * All pipes use interval to rate limit NAK processing. Force an
+	 * interval if one wasn't supplied
+	 */
+	if (!interval)
+		interval = 1;
+	if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
+		pipe->interval = interval*8;
+		/* Force start splits to be schedule on uFrame 0 */
+		pipe->next_tx_frame = ((usb->frame_number+7)&~7) + pipe->interval;
+	} else {
+		pipe->interval = interval;
+		pipe->next_tx_frame = usb->frame_number + pipe->interval;
+	}
+	pipe->multi_count = multi_count;
+	pipe->hub_device_addr = hub_device_addr;
+	pipe->hub_port = hub_port;
+	pipe->pid_toggle = 0;
+	pipe->split_sc_frame = -1;
+	__cvmx_usb_append_pipe(&usb->idle_pipes, pipe);
+
+	/*
+	 * We don't need to tell the hardware about this pipe yet since
+	 * it doesn't have any submitted requests
+	 */
+
+	return __cvmx_usb_get_pipe_handle(usb, pipe);
+}
+
+
+/**
+ * Poll the RX FIFOs and remove data as needed. This function is only used
+ * in non DMA mode. It is very important that this function be called quickly
+ * enough to prevent FIFO overflow.
+ *
+ * @usb:	USB device state populated by
+ *		cvmx_usb_initialize().
+ */
+static void __cvmx_usb_poll_rx_fifo(struct cvmx_usb_internal_state *usb)
+{
+	union cvmx_usbcx_grxstsph rx_status;
+	int channel;
+	int bytes;
+	uint64_t address;
+	uint32_t *ptr;
+
+	rx_status.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_GRXSTSPH(usb->index));
+	/* Only read data if IN data is there */
+	if (rx_status.s.pktsts != 2)
+		return;
+	/* Check if no data is available */
+	if (!rx_status.s.bcnt)
+		return;
+
+	channel = rx_status.s.chnum;
+	bytes = rx_status.s.bcnt;
+	if (!bytes)
+		return;
+
+	/* Get where the DMA engine would have written this data */
+	address = __cvmx_usb_read_csr64(usb, CVMX_USBNX_DMA0_INB_CHN0(usb->index) + channel*8);
+	ptr = cvmx_phys_to_ptr(address);
+	__cvmx_usb_write_csr64(usb, CVMX_USBNX_DMA0_INB_CHN0(usb->index) + channel*8, address + bytes);
+
+	/* Loop writing the FIFO data for this packet into memory */
+	while (bytes > 0) {
+		*ptr++ = __cvmx_usb_read_csr32(usb, USB_FIFO_ADDRESS(channel, usb->index));
+		bytes -= 4;
+	}
+	CVMX_SYNCW;
+
+	return;
+}
+
+
+/**
+ * Fill the TX hardware fifo with data out of the software
+ * fifos
+ *
+ * @usb:	    USB device state populated by
+ *		    cvmx_usb_initialize().
+ * @fifo:	    Software fifo to use
+ * @available:	    Amount of space in the hardware fifo
+ *
+ * Returns: Non zero if the hardware fifo was too small and needs
+ *	    to be serviced again.
+ */
+static int __cvmx_usb_fill_tx_hw(struct cvmx_usb_internal_state *usb, struct cvmx_usb_tx_fifo *fifo, int available)
+{
+	/*
+	 * We're done either when there isn't anymore space or the software FIFO
+	 * is empty
+	 */
+	while (available && (fifo->head != fifo->tail)) {
+		int i = fifo->tail;
+		const uint32_t *ptr = cvmx_phys_to_ptr(fifo->entry[i].address);
+		uint64_t csr_address = USB_FIFO_ADDRESS(fifo->entry[i].channel, usb->index) ^ 4;
+		int words = available;
+
+		/* Limit the amount of data to waht the SW fifo has */
+		if (fifo->entry[i].size <= available) {
+			words = fifo->entry[i].size;
+			fifo->tail++;
+			if (fifo->tail > MAX_CHANNELS)
+				fifo->tail = 0;
+		}
+
+		/* Update the next locations and counts */
+		available -= words;
+		fifo->entry[i].address += words * 4;
+		fifo->entry[i].size -= words;
+
+		/*
+		 * Write the HW fifo data. The read every three writes is due
+		 * to an errata on CN3XXX chips
+		 */
+		while (words > 3) {
+			cvmx_write64_uint32(csr_address, *ptr++);
+			cvmx_write64_uint32(csr_address, *ptr++);
+			cvmx_write64_uint32(csr_address, *ptr++);
+			cvmx_read64_uint64(CVMX_USBNX_DMA0_INB_CHN0(usb->index));
+			words -= 3;
+		}
+		cvmx_write64_uint32(csr_address, *ptr++);
+		if (--words) {
+			cvmx_write64_uint32(csr_address, *ptr++);
+			if (--words)
+				cvmx_write64_uint32(csr_address, *ptr++);
+		}
+		cvmx_read64_uint64(CVMX_USBNX_DMA0_INB_CHN0(usb->index));
+	}
+	return fifo->head != fifo->tail;
+}
+
+
+/**
+ * Check the hardware FIFOs and fill them as needed
+ *
+ * @usb:	USB device state populated by
+ *		cvmx_usb_initialize().
+ */
+static void __cvmx_usb_poll_tx_fifo(struct cvmx_usb_internal_state *usb)
+{
+	if (usb->periodic.head != usb->periodic.tail) {
+		union cvmx_usbcx_hptxsts tx_status;
+		tx_status.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HPTXSTS(usb->index));
+		if (__cvmx_usb_fill_tx_hw(usb, &usb->periodic, tx_status.s.ptxfspcavail))
+			USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index), union cvmx_usbcx_gintmsk, ptxfempmsk, 1);
+		else
+			USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index), union cvmx_usbcx_gintmsk, ptxfempmsk, 0);
+	}
+
+	if (usb->nonperiodic.head != usb->nonperiodic.tail) {
+		union cvmx_usbcx_gnptxsts tx_status;
+		tx_status.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_GNPTXSTS(usb->index));
+		if (__cvmx_usb_fill_tx_hw(usb, &usb->nonperiodic, tx_status.s.nptxfspcavail))
+			USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index), union cvmx_usbcx_gintmsk, nptxfempmsk, 1);
+		else
+			USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index), union cvmx_usbcx_gintmsk, nptxfempmsk, 0);
+	}
+
+	return;
+}
+
+
+/**
+ * Fill the TX FIFO with an outgoing packet
+ *
+ * @usb:	  USB device state populated by
+ *		  cvmx_usb_initialize().
+ * @channel:	  Channel number to get packet from
+ */
+static void __cvmx_usb_fill_tx_fifo(struct cvmx_usb_internal_state *usb, int channel)
+{
+	union cvmx_usbcx_hccharx hcchar;
+	union cvmx_usbcx_hcspltx usbc_hcsplt;
+	union cvmx_usbcx_hctsizx usbc_hctsiz;
+	struct cvmx_usb_tx_fifo *fifo;
+
+	/* We only need to fill data on outbound channels */
+	hcchar.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCCHARX(channel, usb->index));
+	if (hcchar.s.epdir != CVMX_USB_DIRECTION_OUT)
+		return;
+
+	/* OUT Splits only have data on the start and not the complete */
+	usbc_hcsplt.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCSPLTX(channel, usb->index));
+	if (usbc_hcsplt.s.spltena && usbc_hcsplt.s.compsplt)
+		return;
+
+	/*
+	 * Find out how many bytes we need to fill and convert it into 32bit
+	 * words.
+	 */
+	usbc_hctsiz.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCTSIZX(channel, usb->index));
+	if (!usbc_hctsiz.s.xfersize)
+		return;
+
+	if ((hcchar.s.eptype == CVMX_USB_TRANSFER_INTERRUPT) ||
+		(hcchar.s.eptype == CVMX_USB_TRANSFER_ISOCHRONOUS))
+		fifo = &usb->periodic;
+	else
+		fifo = &usb->nonperiodic;
+
+	fifo->entry[fifo->head].channel = channel;
+	fifo->entry[fifo->head].address = __cvmx_usb_read_csr64(usb, CVMX_USBNX_DMA0_OUTB_CHN0(usb->index) + channel*8);
+	fifo->entry[fifo->head].size = (usbc_hctsiz.s.xfersize+3)>>2;
+	fifo->head++;
+	if (fifo->head > MAX_CHANNELS)
+		fifo->head = 0;
+
+	__cvmx_usb_poll_tx_fifo(usb);
+
+	return;
+}
+
+/**
+ * Perform channel specific setup for Control transactions. All
+ * the generic stuff will already have been done in
+ * __cvmx_usb_start_channel()
+ *
+ * @usb:	  USB device state populated by
+ *		  cvmx_usb_initialize().
+ * @channel:	  Channel to setup
+ * @pipe:	  Pipe for control transaction
+ */
+static void __cvmx_usb_start_channel_control(struct cvmx_usb_internal_state *usb,
+					     int channel,
+					     struct cvmx_usb_pipe *pipe)
+{
+	struct cvmx_usb_transaction *transaction = pipe->head;
+	union cvmx_usb_control_header *header =
+		cvmx_phys_to_ptr(transaction->control_header);
+	int bytes_to_transfer = transaction->buffer_length - transaction->actual_bytes;
+	int packets_to_transfer;
+	union cvmx_usbcx_hctsizx usbc_hctsiz;
+
+	usbc_hctsiz.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCTSIZX(channel, usb->index));
+
+	switch (transaction->stage) {
+	case CVMX_USB_STAGE_NON_CONTROL:
+	case CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE:
+		cvmx_dprintf("%s: ERROR - Non control stage\n", __FUNCTION__);
+		break;
+	case CVMX_USB_STAGE_SETUP:
+		usbc_hctsiz.s.pid = 3; /* Setup */
+		bytes_to_transfer = sizeof(*header);
+		/* All Control operations start with a setup going OUT */
+		USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index), union cvmx_usbcx_hccharx, epdir, CVMX_USB_DIRECTION_OUT);
+		/*
+		 * Setup send the control header instead of the buffer data. The
+		 * buffer data will be used in the next stage
+		 */
+		__cvmx_usb_write_csr64(usb, CVMX_USBNX_DMA0_OUTB_CHN0(usb->index) + channel*8, transaction->control_header);
+		break;
+	case CVMX_USB_STAGE_SETUP_SPLIT_COMPLETE:
+		usbc_hctsiz.s.pid = 3; /* Setup */
+		bytes_to_transfer = 0;
+		/* All Control operations start with a setup going OUT */
+		USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index), union cvmx_usbcx_hccharx, epdir, CVMX_USB_DIRECTION_OUT);
+		USB_SET_FIELD32(CVMX_USBCX_HCSPLTX(channel, usb->index), union cvmx_usbcx_hcspltx, compsplt, 1);
+		break;
+	case CVMX_USB_STAGE_DATA:
+		usbc_hctsiz.s.pid = __cvmx_usb_get_data_pid(pipe);
+		if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
+			if (header->s.request_type & 0x80)
+				bytes_to_transfer = 0;
+			else if (bytes_to_transfer > pipe->max_packet)
+				bytes_to_transfer = pipe->max_packet;
+		}
+		USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index),
+				union cvmx_usbcx_hccharx, epdir,
+				((header->s.request_type & 0x80) ?
+					CVMX_USB_DIRECTION_IN :
+					CVMX_USB_DIRECTION_OUT));
+		break;
+	case CVMX_USB_STAGE_DATA_SPLIT_COMPLETE:
+		usbc_hctsiz.s.pid = __cvmx_usb_get_data_pid(pipe);
+		if (!(header->s.request_type & 0x80))
+			bytes_to_transfer = 0;
+		USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index),
+				union cvmx_usbcx_hccharx, epdir,
+				((header->s.request_type & 0x80) ?
+					CVMX_USB_DIRECTION_IN :
+					CVMX_USB_DIRECTION_OUT));
+		USB_SET_FIELD32(CVMX_USBCX_HCSPLTX(channel, usb->index), union cvmx_usbcx_hcspltx, compsplt, 1);
+		break;
+	case CVMX_USB_STAGE_STATUS:
+		usbc_hctsiz.s.pid = __cvmx_usb_get_data_pid(pipe);
+		bytes_to_transfer = 0;
+		USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index), union cvmx_usbcx_hccharx, epdir,
+				((header->s.request_type & 0x80) ?
+					CVMX_USB_DIRECTION_OUT :
+					CVMX_USB_DIRECTION_IN));
+		break;
+	case CVMX_USB_STAGE_STATUS_SPLIT_COMPLETE:
+		usbc_hctsiz.s.pid = __cvmx_usb_get_data_pid(pipe);
+		bytes_to_transfer = 0;
+		USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index), union cvmx_usbcx_hccharx, epdir,
+				((header->s.request_type & 0x80) ?
+					CVMX_USB_DIRECTION_OUT :
+					CVMX_USB_DIRECTION_IN));
+		USB_SET_FIELD32(CVMX_USBCX_HCSPLTX(channel, usb->index), union cvmx_usbcx_hcspltx, compsplt, 1);
+		break;
+	}
+
+	/*
+	 * Make sure the transfer never exceeds the byte limit of the hardware.
+	 * Further bytes will be sent as continued transactions
+	 */
+	if (bytes_to_transfer > MAX_TRANSFER_BYTES) {
+		/* Round MAX_TRANSFER_BYTES to a multiple of out packet size */
+		bytes_to_transfer = MAX_TRANSFER_BYTES / pipe->max_packet;
+		bytes_to_transfer *= pipe->max_packet;
+	}
+
+	/*
+	 * Calculate the number of packets to transfer. If the length is zero
+	 * we still need to transfer one packet
+	 */
+	packets_to_transfer = (bytes_to_transfer + pipe->max_packet - 1) / pipe->max_packet;
+	if (packets_to_transfer == 0)
+		packets_to_transfer = 1;
+	else if ((packets_to_transfer > 1) && (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)) {
+		/*
+		 * Limit to one packet when not using DMA. Channels must be
+		 * restarted between every packet for IN transactions, so there
+		 * is no reason to do multiple packets in a row
+		 */
+		packets_to_transfer = 1;
+		bytes_to_transfer = packets_to_transfer * pipe->max_packet;
+	} else if (packets_to_transfer > MAX_TRANSFER_PACKETS) {
+		/*
+		 * Limit the number of packet and data transferred to what the
+		 * hardware can handle
+		 */
+		packets_to_transfer = MAX_TRANSFER_PACKETS;
+		bytes_to_transfer = packets_to_transfer * pipe->max_packet;
+	}
+
+	usbc_hctsiz.s.xfersize = bytes_to_transfer;
+	usbc_hctsiz.s.pktcnt = packets_to_transfer;
+
+	__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCTSIZX(channel, usb->index), usbc_hctsiz.u32);
+	return;
+}
+
+
+/**
+ * Start a channel to perform the pipe's head transaction
+ *
+ * @usb:	  USB device state populated by
+ *		  cvmx_usb_initialize().
+ * @channel:	  Channel to setup
+ * @pipe:	  Pipe to start
+ */
+static void __cvmx_usb_start_channel(struct cvmx_usb_internal_state *usb,
+				     int channel,
+				     struct cvmx_usb_pipe *pipe)
+{
+	struct cvmx_usb_transaction *transaction = pipe->head;
+
+	/* Make sure all writes to the DMA region get flushed */
+	CVMX_SYNCW;
+
+	/* Attach the channel to the pipe */
+	usb->pipe_for_channel[channel] = pipe;
+	pipe->channel = channel;
+	pipe->flags |= __CVMX_USB_PIPE_FLAGS_SCHEDULED;
+
+	/* Mark this channel as in use */
+	usb->idle_hardware_channels &= ~(1<<channel);
+
+	/* Enable the channel interrupt bits */
+	{
+		union cvmx_usbcx_hcintx usbc_hcint;
+		union cvmx_usbcx_hcintmskx usbc_hcintmsk;
+		union cvmx_usbcx_haintmsk usbc_haintmsk;
+
+		/* Clear all channel status bits */
+		usbc_hcint.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCINTX(channel, usb->index));
+		__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCINTX(channel, usb->index), usbc_hcint.u32);
+
+		usbc_hcintmsk.u32 = 0;
+		usbc_hcintmsk.s.chhltdmsk = 1;
+		if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA) {
+			/*
+			 * Channels need these extra interrupts when we aren't
+			 * in DMA mode.
+			 */
+			usbc_hcintmsk.s.datatglerrmsk = 1;
+			usbc_hcintmsk.s.frmovrunmsk = 1;
+			usbc_hcintmsk.s.bblerrmsk = 1;
+			usbc_hcintmsk.s.xacterrmsk = 1;
+			if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
+				/*
+				 * Splits don't generate xfercompl, so we need
+				 * ACK and NYET.
+				 */
+				usbc_hcintmsk.s.nyetmsk = 1;
+				usbc_hcintmsk.s.ackmsk = 1;
+			}
+			usbc_hcintmsk.s.nakmsk = 1;
+			usbc_hcintmsk.s.stallmsk = 1;
+			usbc_hcintmsk.s.xfercomplmsk = 1;
+		}
+		__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCINTMSKX(channel, usb->index), usbc_hcintmsk.u32);
+
+		/* Enable the channel interrupt to propagate */
+		usbc_haintmsk.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HAINTMSK(usb->index));
+		usbc_haintmsk.s.haintmsk |= 1<<channel;
+		__cvmx_usb_write_csr32(usb, CVMX_USBCX_HAINTMSK(usb->index), usbc_haintmsk.u32);
+	}
+
+	/* Setup the locations the DMA engines use  */
+	{
+		uint64_t dma_address = transaction->buffer + transaction->actual_bytes;
+		if (transaction->type == CVMX_USB_TRANSFER_ISOCHRONOUS)
+			dma_address = transaction->buffer + transaction->iso_packets[0].offset + transaction->actual_bytes;
+		__cvmx_usb_write_csr64(usb, CVMX_USBNX_DMA0_OUTB_CHN0(usb->index) + channel*8, dma_address);
+		__cvmx_usb_write_csr64(usb, CVMX_USBNX_DMA0_INB_CHN0(usb->index) + channel*8, dma_address);
+	}
+
+	/* Setup both the size of the transfer and the SPLIT characteristics */
+	{
+		union cvmx_usbcx_hcspltx usbc_hcsplt = {.u32 = 0};
+		union cvmx_usbcx_hctsizx usbc_hctsiz = {.u32 = 0};
+		int packets_to_transfer;
+		int bytes_to_transfer = transaction->buffer_length - transaction->actual_bytes;
+
+		/*
+		 * ISOCHRONOUS transactions store each individual transfer size
+		 * in the packet structure, not the global buffer_length
+		 */
+		if (transaction->type == CVMX_USB_TRANSFER_ISOCHRONOUS)
+			bytes_to_transfer = transaction->iso_packets[0].length - transaction->actual_bytes;
+
+		/*
+		 * We need to do split transactions when we are talking to non
+		 * high speed devices that are behind a high speed hub
+		 */
+		if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
+			/*
+			 * On the start split phase (stage is even) record the
+			 * frame number we will need to send the split complete.
+			 * We only store the lower two bits since the time ahead
+			 * can only be two frames
+			 */
+			if ((transaction->stage&1) == 0) {
+				if (transaction->type == CVMX_USB_TRANSFER_BULK)
+					pipe->split_sc_frame = (usb->frame_number + 1) & 0x7f;
+				else
+					pipe->split_sc_frame = (usb->frame_number + 2) & 0x7f;
+			} else
+				pipe->split_sc_frame = -1;
+
+			usbc_hcsplt.s.spltena = 1;
+			usbc_hcsplt.s.hubaddr = pipe->hub_device_addr;
+			usbc_hcsplt.s.prtaddr = pipe->hub_port;
+			usbc_hcsplt.s.compsplt = (transaction->stage == CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE);
+
+			/*
+			 * SPLIT transactions can only ever transmit one data
+			 * packet so limit the transfer size to the max packet
+			 * size
+			 */
+			if (bytes_to_transfer > pipe->max_packet)
+				bytes_to_transfer = pipe->max_packet;
+
+			/*
+			 * ISOCHRONOUS OUT splits are unique in that they limit
+			 * data transfers to 188 byte chunks representing the
+			 * begin/middle/end of the data or all
+			 */
+			if (!usbc_hcsplt.s.compsplt &&
+				(pipe->transfer_dir == CVMX_USB_DIRECTION_OUT) &&
+				(pipe->transfer_type == CVMX_USB_TRANSFER_ISOCHRONOUS)) {
+				/*
+				 * Clear the split complete frame number as
+				 * there isn't going to be a split complete
+				 */
+				pipe->split_sc_frame = -1;
+				/*
+				 * See if we've started this transfer and sent
+				 * data
+				 */
+				if (transaction->actual_bytes == 0) {
+					/*
+					 * Nothing sent yet, this is either a
+					 * begin or the entire payload
+					 */
+					if (bytes_to_transfer <= 188)
+						/* Entire payload in one go */
+						usbc_hcsplt.s.xactpos = 3;
+					else
+						/* First part of payload */
+						usbc_hcsplt.s.xactpos = 2;
+				} else {
+					/*
+					 * Continuing the previous data, we must
+					 * either be in the middle or at the end
+					 */
+					if (bytes_to_transfer <= 188)
+						/* End of payload */
+						usbc_hcsplt.s.xactpos = 1;
+					else
+						/* Middle of payload */
+						usbc_hcsplt.s.xactpos = 0;
+				}
+				/*
+				 * Again, the transfer size is limited to 188
+				 * bytes
+				 */
+				if (bytes_to_transfer > 188)
+					bytes_to_transfer = 188;
+			}
+		}
+
+		/*
+		 * Make sure the transfer never exceeds the byte limit of the
+		 * hardware. Further bytes will be sent as continued
+		 * transactions
+		 */
+		if (bytes_to_transfer > MAX_TRANSFER_BYTES) {
+			/*
+			 * Round MAX_TRANSFER_BYTES to a multiple of out packet
+			 * size
+			 */
+			bytes_to_transfer = MAX_TRANSFER_BYTES / pipe->max_packet;
+			bytes_to_transfer *= pipe->max_packet;
+		}
+
+		/*
+		 * Calculate the number of packets to transfer. If the length is
+		 * zero we still need to transfer one packet
+		 */
+		packets_to_transfer = (bytes_to_transfer + pipe->max_packet - 1) / pipe->max_packet;
+		if (packets_to_transfer == 0)
+			packets_to_transfer = 1;
+		else if ((packets_to_transfer > 1) && (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)) {
+			/*
+			 * Limit to one packet when not using DMA. Channels must
+			 * be restarted between every packet for IN
+			 * transactions, so there is no reason to do multiple
+			 * packets in a row
+			 */
+			packets_to_transfer = 1;
+			bytes_to_transfer = packets_to_transfer * pipe->max_packet;
+		} else if (packets_to_transfer > MAX_TRANSFER_PACKETS) {
+			/*
+			 * Limit the number of packet and data transferred to
+			 * what the hardware can handle
+			 */
+			packets_to_transfer = MAX_TRANSFER_PACKETS;
+			bytes_to_transfer = packets_to_transfer * pipe->max_packet;
+		}
+
+		usbc_hctsiz.s.xfersize = bytes_to_transfer;
+		usbc_hctsiz.s.pktcnt = packets_to_transfer;
+
+		/* Update the DATA0/DATA1 toggle */
+		usbc_hctsiz.s.pid = __cvmx_usb_get_data_pid(pipe);
+		/*
+		 * High speed pipes may need a hardware ping before they start
+		 */
+		if (pipe->flags & __CVMX_USB_PIPE_FLAGS_NEED_PING)
+			usbc_hctsiz.s.dopng = 1;
+
+		__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCSPLTX(channel, usb->index), usbc_hcsplt.u32);
+		__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCTSIZX(channel, usb->index), usbc_hctsiz.u32);
+	}
+
+	/* Setup the Host Channel Characteristics Register */
+	{
+		union cvmx_usbcx_hccharx usbc_hcchar = {.u32 = 0};
+
+		/*
+		 * Set the startframe odd/even properly. This is only used for
+		 * periodic
+		 */
+		usbc_hcchar.s.oddfrm = usb->frame_number&1;
+
+		/*
+		 * Set the number of back to back packets allowed by this
+		 * endpoint. Split transactions interpret "ec" as the number of
+		 * immediate retries of failure. These retries happen too
+		 * quickly, so we disable these entirely for splits
+		 */
+		if (__cvmx_usb_pipe_needs_split(usb, pipe))
+			usbc_hcchar.s.ec = 1;
+		else if (pipe->multi_count < 1)
+			usbc_hcchar.s.ec = 1;
+		else if (pipe->multi_count > 3)
+			usbc_hcchar.s.ec = 3;
+		else
+			usbc_hcchar.s.ec = pipe->multi_count;
+
+		/* Set the rest of the endpoint specific settings */
+		usbc_hcchar.s.devaddr = pipe->device_addr;
+		usbc_hcchar.s.eptype = transaction->type;
+		usbc_hcchar.s.lspddev = (pipe->device_speed == CVMX_USB_SPEED_LOW);
+		usbc_hcchar.s.epdir = pipe->transfer_dir;
+		usbc_hcchar.s.epnum = pipe->endpoint_num;
+		usbc_hcchar.s.mps = pipe->max_packet;
+		__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCCHARX(channel, usb->index), usbc_hcchar.u32);
+	}
+
+	/* Do transaction type specific fixups as needed */
+	switch (transaction->type) {
+	case CVMX_USB_TRANSFER_CONTROL:
+		__cvmx_usb_start_channel_control(usb, channel, pipe);
+		break;
+	case CVMX_USB_TRANSFER_BULK:
+	case CVMX_USB_TRANSFER_INTERRUPT:
+		break;
+	case CVMX_USB_TRANSFER_ISOCHRONOUS:
+		if (!__cvmx_usb_pipe_needs_split(usb, pipe)) {
+			/*
+			 * ISO transactions require different PIDs depending on
+			 * direction and how many packets are needed
+			 */
+			if (pipe->transfer_dir == CVMX_USB_DIRECTION_OUT) {
+				if (pipe->multi_count < 2) /* Need DATA0 */
+					USB_SET_FIELD32(CVMX_USBCX_HCTSIZX(channel, usb->index), union cvmx_usbcx_hctsizx, pid, 0);
+				else /* Need MDATA */
+					USB_SET_FIELD32(CVMX_USBCX_HCTSIZX(channel, usb->index), union cvmx_usbcx_hctsizx, pid, 3);
+			}
+		}
+		break;
+	}
+	{
+		union cvmx_usbcx_hctsizx usbc_hctsiz = {.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCTSIZX(channel, usb->index))};
+		transaction->xfersize = usbc_hctsiz.s.xfersize;
+		transaction->pktcnt = usbc_hctsiz.s.pktcnt;
+	}
+	/* Remeber when we start a split transaction */
+	if (__cvmx_usb_pipe_needs_split(usb, pipe))
+		usb->active_split = transaction;
+	USB_SET_FIELD32(CVMX_USBCX_HCCHARX(channel, usb->index), union cvmx_usbcx_hccharx, chena, 1);
+	if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)
+		__cvmx_usb_fill_tx_fifo(usb, channel);
+	return;
+}
+
+
+/**
+ * Find a pipe that is ready to be scheduled to hardware.
+ * @usb:	 USB device state populated by
+ *		 cvmx_usb_initialize().
+ * @list:	 Pipe list to search
+ * @current_frame:
+ *		 Frame counter to use as a time reference.
+ *
+ * Returns: Pipe or NULL if none are ready
+ */
+static struct cvmx_usb_pipe *__cvmx_usb_find_ready_pipe(struct cvmx_usb_internal_state *usb, struct cvmx_usb_pipe_list *list, uint64_t current_frame)
+{
+	struct cvmx_usb_pipe *pipe = list->head;
+	while (pipe) {
+		if (!(pipe->flags & __CVMX_USB_PIPE_FLAGS_SCHEDULED) && pipe->head &&
+			(pipe->next_tx_frame <= current_frame) &&
+			((pipe->split_sc_frame == -1) || ((((int)current_frame - (int)pipe->split_sc_frame) & 0x7f) < 0x40)) &&
+			(!usb->active_split || (usb->active_split == pipe->head))) {
+			CVMX_PREFETCH(pipe, 128);
+			CVMX_PREFETCH(pipe->head, 0);
+			return pipe;
+		}
+		pipe = pipe->next;
+	}
+	return NULL;
+}
+
+
+/**
+ * Called whenever a pipe might need to be scheduled to the
+ * hardware.
+ *
+ * @usb:	 USB device state populated by
+ *		 cvmx_usb_initialize().
+ * @is_sof:	 True if this schedule was called on a SOF interrupt.
+ */
+static void __cvmx_usb_schedule(struct cvmx_usb_internal_state *usb, int is_sof)
+{
+	int channel;
+	struct cvmx_usb_pipe *pipe;
+	int need_sof;
+	enum cvmx_usb_transfer ttype;
+
+	if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA) {
+		/*
+		 * Without DMA we need to be careful to not schedule something
+		 * at the end of a frame and cause an overrun.
+		 */
+		union cvmx_usbcx_hfnum hfnum = {.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HFNUM(usb->index))};
+		union cvmx_usbcx_hfir hfir = {.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HFIR(usb->index))};
+		if (hfnum.s.frrem < hfir.s.frint/4)
+			goto done;
+	}
+
+	while (usb->idle_hardware_channels) {
+		/* Find an idle channel */
+		channel = __fls(usb->idle_hardware_channels);
+		if (unlikely(channel > 7))
+			break;
+
+		/* Find a pipe needing service */
+		pipe = NULL;
+		if (is_sof) {
+			/*
+			 * Only process periodic pipes on SOF interrupts. This
+			 * way we are sure that the periodic data is sent in the
+			 * beginning of the frame
+			 */
+			pipe = __cvmx_usb_find_ready_pipe(usb, usb->active_pipes + CVMX_USB_TRANSFER_ISOCHRONOUS, usb->frame_number);
+			if (likely(!pipe))
+				pipe = __cvmx_usb_find_ready_pipe(usb, usb->active_pipes + CVMX_USB_TRANSFER_INTERRUPT, usb->frame_number);
+		}
+		if (likely(!pipe)) {
+			pipe = __cvmx_usb_find_ready_pipe(usb, usb->active_pipes + CVMX_USB_TRANSFER_CONTROL, usb->frame_number);
+			if (likely(!pipe))
+				pipe = __cvmx_usb_find_ready_pipe(usb, usb->active_pipes + CVMX_USB_TRANSFER_BULK, usb->frame_number);
+		}
+		if (!pipe)
+			break;
+
+		__cvmx_usb_start_channel(usb, channel, pipe);
+	}
+
+done:
+	/*
+	 * Only enable SOF interrupts when we have transactions pending in the
+	 * future that might need to be scheduled
+	 */
+	need_sof = 0;
+	for (ttype = CVMX_USB_TRANSFER_CONTROL; ttype <= CVMX_USB_TRANSFER_INTERRUPT; ttype++) {
+		pipe = usb->active_pipes[ttype].head;
+		while (pipe) {
+			if (pipe->next_tx_frame > usb->frame_number) {
+				need_sof = 1;
+				break;
+			}
+			pipe = pipe->next;
+		}
+	}
+	USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index), union cvmx_usbcx_gintmsk, sofmsk, need_sof);
+	return;
+}
+
+
+/**
+ * Call a user's callback for a specific reason.
+ *
+ * @usb:	 USB device state populated by
+ *		 cvmx_usb_initialize().
+ * @pipe:	 Pipe the callback is for or NULL
+ * @transaction:
+ *		 Transaction the callback is for or NULL
+ * @reason:	 Reason this callback is being called
+ * @complete_code:
+ *		 Completion code for the transaction, if any
+ */
+static void __cvmx_usb_perform_callback(struct cvmx_usb_internal_state *usb,
+					struct cvmx_usb_pipe *pipe,
+					struct cvmx_usb_transaction *transaction,
+					enum cvmx_usb_callback reason,
+					enum cvmx_usb_complete complete_code)
+{
+	cvmx_usb_callback_func_t callback = usb->callback[reason];
+	void *user_data = usb->callback_data[reason];
+	int submit_handle = -1;
+	int pipe_handle = -1;
+	int bytes_transferred = 0;
+
+	if (pipe)
+		pipe_handle = __cvmx_usb_get_pipe_handle(usb, pipe);
+
+	if (transaction) {
+		submit_handle = __cvmx_usb_get_submit_handle(usb, transaction);
+		bytes_transferred = transaction->actual_bytes;
+		/* Transactions are allowed to override the default callback */
+		if ((reason == CVMX_USB_CALLBACK_TRANSFER_COMPLETE) && transaction->callback) {
+			callback = transaction->callback;
+			user_data = transaction->callback_data;
+		}
+	}
+
+	if (!callback)
+		return;
+
+	callback((struct cvmx_usb_state *)usb, reason, complete_code, pipe_handle, submit_handle,
+		 bytes_transferred, user_data);
+}
+
+
+/**
+ * Signal the completion of a transaction and free it. The
+ * transaction will be removed from the pipe transaction list.
+ *
+ * @usb:	 USB device state populated by
+ *		 cvmx_usb_initialize().
+ * @pipe:	 Pipe the transaction is on
+ * @transaction:
+ *		 Transaction that completed
+ * @complete_code:
+ *		 Completion code
+ */
+static void __cvmx_usb_perform_complete(struct cvmx_usb_internal_state *usb,
+					struct cvmx_usb_pipe *pipe,
+					struct cvmx_usb_transaction *transaction,
+					enum cvmx_usb_complete complete_code)
+{
+	/* If this was a split then clear our split in progress marker */
+	if (usb->active_split == transaction)
+		usb->active_split = NULL;
+
+	/*
+	 * Isochronous transactions need extra processing as they might not be
+	 * done after a single data transfer
+	 */
+	if (unlikely(transaction->type == CVMX_USB_TRANSFER_ISOCHRONOUS)) {
+		/* Update the number of bytes transferred in this ISO packet */
+		transaction->iso_packets[0].length = transaction->actual_bytes;
+		transaction->iso_packets[0].status = complete_code;
+
+		/*
+		 * If there are more ISOs pending and we succeeded, schedule the
+		 * next one
+		 */
+		if ((transaction->iso_number_packets > 1) && (complete_code == CVMX_USB_COMPLETE_SUCCESS)) {
+			/* No bytes transferred for this packet as of yet */
+			transaction->actual_bytes = 0;
+			/* One less ISO waiting to transfer */
+			transaction->iso_number_packets--;
+			/* Increment to the next location in our packet array */
+			transaction->iso_packets++;
+			transaction->stage = CVMX_USB_STAGE_NON_CONTROL;
+			goto done;
+		}
+	}
+
+	/* Remove the transaction from the pipe list */
+	if (transaction->next)
+		transaction->next->prev = transaction->prev;
+	else
+		pipe->tail = transaction->prev;
+	if (transaction->prev)
+		transaction->prev->next = transaction->next;
+	else
+		pipe->head = transaction->next;
+	if (!pipe->head) {
+		__cvmx_usb_remove_pipe(usb->active_pipes + pipe->transfer_type, pipe);
+		__cvmx_usb_append_pipe(&usb->idle_pipes, pipe);
+
+	}
+	__cvmx_usb_perform_callback(usb, pipe, transaction,
+				    CVMX_USB_CALLBACK_TRANSFER_COMPLETE,
+				    complete_code);
+	__cvmx_usb_free_transaction(usb, transaction);
+done:
+	return;
+}
+
+
+/**
+ * Submit a usb transaction to a pipe. Called for all types
+ * of transactions.
+ *
+ * @usb:
+ * @pipe_handle:
+ *		    Which pipe to submit to. Will be validated in this function.
+ * @type:	    Transaction type
+ * @buffer:	    User buffer for the transaction
+ * @buffer_length:
+ *		    User buffer's length in bytes
+ * @control_header:
+ *		    For control transactions, the 8 byte standard header
+ * @iso_start_frame:
+ *		    For ISO transactions, the start frame
+ * @iso_number_packets:
+ *		    For ISO, the number of packet in the transaction.
+ * @iso_packets:
+ *		    A description of each ISO packet
+ * @callback:	    User callback to call when the transaction completes
+ * @user_data:	    User's data for the callback
+ *
+ * Returns: Submit handle or negative on failure. Matches the result
+ *	    in the external API.
+ */
+static int __cvmx_usb_submit_transaction(struct cvmx_usb_internal_state *usb,
+					 int pipe_handle,
+					 enum cvmx_usb_transfer type,
+					 uint64_t buffer,
+					 int buffer_length,
+					 uint64_t control_header,
+					 int iso_start_frame,
+					 int iso_number_packets,
+					 struct cvmx_usb_iso_packet *iso_packets,
+					 cvmx_usb_callback_func_t callback,
+					 void *user_data)
+{
+	int submit_handle;
+	struct cvmx_usb_transaction *transaction;
+	struct cvmx_usb_pipe *pipe = usb->pipe + pipe_handle;
+
+	if (unlikely((pipe_handle < 0) || (pipe_handle >= MAX_PIPES)))
+		return -EINVAL;
+	/* Fail if the pipe isn't open */
+	if (unlikely((pipe->flags & __CVMX_USB_PIPE_FLAGS_OPEN) == 0))
+		return -EINVAL;
+	if (unlikely(pipe->transfer_type != type))
+		return -EINVAL;
+
+	transaction = __cvmx_usb_alloc_transaction(usb);
+	if (unlikely(!transaction))
+		return -ENOMEM;
+
+	transaction->type = type;
+	transaction->buffer = buffer;
+	transaction->buffer_length = buffer_length;
+	transaction->control_header = control_header;
+	/* FIXME: This is not used, implement it. */
+	transaction->iso_start_frame = iso_start_frame;
+	transaction->iso_number_packets = iso_number_packets;
+	transaction->iso_packets = iso_packets;
+	transaction->callback = callback;
+	transaction->callback_data = user_data;
+	if (transaction->type == CVMX_USB_TRANSFER_CONTROL)
+		transaction->stage = CVMX_USB_STAGE_SETUP;
+	else
+		transaction->stage = CVMX_USB_STAGE_NON_CONTROL;
+
+	transaction->next = NULL;
+	if (pipe->tail) {
+		transaction->prev = pipe->tail;
+		transaction->prev->next = transaction;
+	} else {
+		if (pipe->next_tx_frame < usb->frame_number)
+			pipe->next_tx_frame = usb->frame_number + pipe->interval -
+				(usb->frame_number - pipe->next_tx_frame) % pipe->interval;
+		transaction->prev = NULL;
+		pipe->head = transaction;
+		__cvmx_usb_remove_pipe(&usb->idle_pipes, pipe);
+		__cvmx_usb_append_pipe(usb->active_pipes + pipe->transfer_type, pipe);
+	}
+	pipe->tail = transaction;
+
+	submit_handle = __cvmx_usb_get_submit_handle(usb, transaction);
+
+	/* We may need to schedule the pipe if this was the head of the pipe */
+	if (!transaction->prev)
+		__cvmx_usb_schedule(usb, 0);
+
+	return submit_handle;
+}
+
+
+/**
+ * Call to submit a USB Bulk transfer to a pipe.
+ *
+ * @state:	    USB device state populated by
+ *		    cvmx_usb_initialize().
+ * @pipe_handle:
+ *		    Handle to the pipe for the transfer.
+ * @buffer:	    Physical address of the data buffer in
+ *		    memory. Note that this is NOT A POINTER, but
+ *		    the full 64bit physical address of the
+ *		    buffer. This may be zero if buffer_length is
+ *		    zero.
+ * @buffer_length:
+ *		    Length of buffer in bytes.
+ * @callback:	    Function to call when this transaction
+ *		    completes. If the return value of this
+ *		    function isn't an error, then this function
+ *		    is guaranteed to be called when the
+ *		    transaction completes. If this parameter is
+ *		    NULL, then the generic callback registered
+ *		    through cvmx_usb_register_callback is
+ *		    called. If both are NULL, then there is no
+ *		    way to know when a transaction completes.
+ * @user_data:	    User supplied data returned when the
+ *		    callback is called. This is only used if
+ *		    callback in not NULL.
+ *
+ * Returns: A submitted transaction handle or negative on
+ *	    failure. Negative values are error codes.
+ */
+static int cvmx_usb_submit_bulk(struct cvmx_usb_state *state, int pipe_handle,
+				uint64_t buffer, int buffer_length,
+				cvmx_usb_callback_func_t callback,
+				void *user_data)
+{
+	int submit_handle;
+	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
+
+	/* Pipe handle checking is done later in a common place */
+	if (unlikely(!buffer))
+		return -EINVAL;
+	if (unlikely(buffer_length < 0))
+		return -EINVAL;
+
+	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
+						      CVMX_USB_TRANSFER_BULK,
+						      buffer,
+						      buffer_length,
+						      0, /* control_header */
+						      0, /* iso_start_frame */
+						      0, /* iso_number_packets */
+						      NULL, /* iso_packets */
+						      callback,
+						      user_data);
+	return submit_handle;
+}
+
+
+/**
+ * Call to submit a USB Interrupt transfer to a pipe.
+ *
+ * @state:	    USB device state populated by
+ *		    cvmx_usb_initialize().
+ * @pipe_handle:
+ *		    Handle to the pipe for the transfer.
+ * @buffer:	    Physical address of the data buffer in
+ *		    memory. Note that this is NOT A POINTER, but
+ *		    the full 64bit physical address of the
+ *		    buffer. This may be zero if buffer_length is
+ *		    zero.
+ * @buffer_length:
+ *		    Length of buffer in bytes.
+ * @callback:	    Function to call when this transaction
+ *		    completes. If the return value of this
+ *		    function isn't an error, then this function
+ *		    is guaranteed to be called when the
+ *		    transaction completes. If this parameter is
+ *		    NULL, then the generic callback registered
+ *		    through cvmx_usb_register_callback is
+ *		    called. If both are NULL, then there is no
+ *		    way to know when a transaction completes.
+ * @user_data:	    User supplied data returned when the
+ *		    callback is called. This is only used if
+ *		    callback in not NULL.
+ *
+ * Returns: A submitted transaction handle or negative on
+ *	    failure. Negative values are error codes.
+ */
+static int cvmx_usb_submit_interrupt(struct cvmx_usb_state *state,
+				     int pipe_handle, uint64_t buffer,
+				     int buffer_length,
+				     cvmx_usb_callback_func_t callback,
+				     void *user_data)
+{
+	int submit_handle;
+	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
+
+	/* Pipe handle checking is done later in a common place */
+	if (unlikely(!buffer))
+		return -EINVAL;
+	if (unlikely(buffer_length < 0))
+		return -EINVAL;
+
+	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
+						      CVMX_USB_TRANSFER_INTERRUPT,
+						      buffer,
+						      buffer_length,
+						      0, /* control_header */
+						      0, /* iso_start_frame */
+						      0, /* iso_number_packets */
+						      NULL, /* iso_packets */
+						      callback,
+						      user_data);
+	return submit_handle;
+}
+
+
+/**
+ * Call to submit a USB Control transfer to a pipe.
+ *
+ * @state:	    USB device state populated by
+ *		    cvmx_usb_initialize().
+ * @pipe_handle:
+ *		    Handle to the pipe for the transfer.
+ * @control_header:
+ *		    USB 8 byte control header physical address.
+ *		    Note that this is NOT A POINTER, but the
+ *		    full 64bit physical address of the buffer.
+ * @buffer:	    Physical address of the data buffer in
+ *		    memory. Note that this is NOT A POINTER, but
+ *		    the full 64bit physical address of the
+ *		    buffer. This may be zero if buffer_length is
+ *		    zero.
+ * @buffer_length:
+ *		    Length of buffer in bytes.
+ * @callback:	    Function to call when this transaction
+ *		    completes. If the return value of this
+ *		    function isn't an error, then this function
+ *		    is guaranteed to be called when the
+ *		    transaction completes. If this parameter is
+ *		    NULL, then the generic callback registered
+ *		    through cvmx_usb_register_callback is
+ *		    called. If both are NULL, then there is no
+ *		    way to know when a transaction completes.
+ * @user_data:	    User supplied data returned when the
+ *		    callback is called. This is only used if
+ *		    callback in not NULL.
+ *
+ * Returns: A submitted transaction handle or negative on
+ *	    failure. Negative values are error codes.
+ */
+static int cvmx_usb_submit_control(struct cvmx_usb_state *state,
+				   int pipe_handle, uint64_t control_header,
+				   uint64_t buffer, int buffer_length,
+				   cvmx_usb_callback_func_t callback,
+				   void *user_data)
+{
+	int submit_handle;
+	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
+	union cvmx_usb_control_header *header =
+		cvmx_phys_to_ptr(control_header);
+
+	/* Pipe handle checking is done later in a common place */
+	if (unlikely(!control_header))
+		return -EINVAL;
+	/* Some drivers send a buffer with a zero length. God only knows why */
+	if (unlikely(buffer && (buffer_length < 0)))
+		return -EINVAL;
+	if (unlikely(!buffer && (buffer_length != 0)))
+		return -EINVAL;
+	if ((header->s.request_type & 0x80) == 0)
+		buffer_length = le16_to_cpu(header->s.length);
+
+	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
+						      CVMX_USB_TRANSFER_CONTROL,
+						      buffer,
+						      buffer_length,
+						      control_header,
+						      0, /* iso_start_frame */
+						      0, /* iso_number_packets */
+						      NULL, /* iso_packets */
+						      callback,
+						      user_data);
+	return submit_handle;
+}
+
+
+/**
+ * Call to submit a USB Isochronous transfer to a pipe.
+ *
+ * @state:	    USB device state populated by
+ *		    cvmx_usb_initialize().
+ * @pipe_handle:
+ *		    Handle to the pipe for the transfer.
+ * @start_frame:
+ *		    Number of frames into the future to schedule
+ *		    this transaction.
+ * @number_packets:
+ *		    Number of sequential packets to transfer.
+ *		    "packets" is a pointer to an array of this
+ *		    many packet structures.
+ * @packets:	    Description of each transfer packet as
+ *		    defined by struct cvmx_usb_iso_packet. The array
+ *		    pointed to here must stay valid until the
+ *		    complete callback is called.
+ * @buffer:	    Physical address of the data buffer in
+ *		    memory. Note that this is NOT A POINTER, but
+ *		    the full 64bit physical address of the
+ *		    buffer. This may be zero if buffer_length is
+ *		    zero.
+ * @buffer_length:
+ *		    Length of buffer in bytes.
+ * @callback:	    Function to call when this transaction
+ *		    completes. If the return value of this
+ *		    function isn't an error, then this function
+ *		    is guaranteed to be called when the
+ *		    transaction completes. If this parameter is
+ *		    NULL, then the generic callback registered
+ *		    through cvmx_usb_register_callback is
+ *		    called. If both are NULL, then there is no
+ *		    way to know when a transaction completes.
+ * @user_data:	    User supplied data returned when the
+ *		    callback is called. This is only used if
+ *		    callback in not NULL.
+ *
+ * Returns: A submitted transaction handle or negative on
+ *	    failure. Negative values are error codes.
+ */
+static int cvmx_usb_submit_isochronous(struct cvmx_usb_state *state,
+				       int pipe_handle, int start_frame,
+				       int number_packets, struct
+				       cvmx_usb_iso_packet packets[],
+				       uint64_t buffer, int buffer_length,
+				       cvmx_usb_callback_func_t callback,
+				       void *user_data)
+{
+	int submit_handle;
+	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
+
+	/* Pipe handle checking is done later in a common place */
+	if (unlikely(start_frame < 0))
+		return -EINVAL;
+	if (unlikely(number_packets < 1))
+		return -EINVAL;
+	if (unlikely(!packets))
+		return -EINVAL;
+	if (unlikely(!buffer))
+		return -EINVAL;
+	if (unlikely(buffer_length < 0))
+		return -EINVAL;
+
+	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
+						      CVMX_USB_TRANSFER_ISOCHRONOUS,
+						      buffer,
+						      buffer_length,
+						      0, /* control_header */
+						      start_frame,
+						      number_packets,
+						      packets,
+						      callback,
+						      user_data);
+	return submit_handle;
+}
+
+
+/**
+ * Cancel one outstanding request in a pipe. Canceling a request
+ * can fail if the transaction has already completed before cancel
+ * is called. Even after a successful cancel call, it may take
+ * a frame or two for the cvmx_usb_poll() function to call the
+ * associated callback.
+ *
+ * @state:	 USB device state populated by
+ *		 cvmx_usb_initialize().
+ * @pipe_handle:
+ *		 Pipe handle to cancel requests in.
+ * @submit_handle:
+ *		 Handle to transaction to cancel, returned by the submit
+ *		 function.
+ *
+ * Returns: 0 or a negative error code.
+ */
+static int cvmx_usb_cancel(struct cvmx_usb_state *state, int pipe_handle,
+			   int submit_handle)
+{
+	struct cvmx_usb_transaction *transaction;
+	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
+	struct cvmx_usb_pipe *pipe = usb->pipe + pipe_handle;
+
+	if (unlikely((pipe_handle < 0) || (pipe_handle >= MAX_PIPES)))
+		return -EINVAL;
+	if (unlikely((submit_handle < 0) || (submit_handle >= MAX_TRANSACTIONS)))
+		return -EINVAL;
+
+	/* Fail if the pipe isn't open */
+	if (unlikely((pipe->flags & __CVMX_USB_PIPE_FLAGS_OPEN) == 0))
+		return -EINVAL;
+
+	transaction = usb->transaction + submit_handle;
+
+	/* Fail if this transaction already completed */
+	if (unlikely((transaction->flags & __CVMX_USB_TRANSACTION_FLAGS_IN_USE) == 0))
+		return -EINVAL;
+
+	/*
+	 * If the transaction is the HEAD of the queue and scheduled. We need to
+	 * treat it special
+	 */
+	if ((pipe->head == transaction) &&
+		(pipe->flags & __CVMX_USB_PIPE_FLAGS_SCHEDULED)) {
+		union cvmx_usbcx_hccharx usbc_hcchar;
+
+		usb->pipe_for_channel[pipe->channel] = NULL;
+		pipe->flags &= ~__CVMX_USB_PIPE_FLAGS_SCHEDULED;
+
+		CVMX_SYNCW;
+
+		usbc_hcchar.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCCHARX(pipe->channel, usb->index));
+		/*
+		 * If the channel isn't enabled then the transaction already
+		 * completed.
+		 */
+		if (usbc_hcchar.s.chena) {
+			usbc_hcchar.s.chdis = 1;
+			__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCCHARX(pipe->channel, usb->index), usbc_hcchar.u32);
+		}
+	}
+	__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_CANCEL);
+	return 0;
+}
+
+
+/**
+ * Cancel all outstanding requests in a pipe. Logically all this
+ * does is call cvmx_usb_cancel() in a loop.
+ *
+ * @state:	 USB device state populated by
+ *		 cvmx_usb_initialize().
+ * @pipe_handle:
+ *		 Pipe handle to cancel requests in.
+ *
+ * Returns: 0 or a negative error code.
+ */
+static int cvmx_usb_cancel_all(struct cvmx_usb_state *state, int pipe_handle)
+{
+	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
+	struct cvmx_usb_pipe *pipe = usb->pipe + pipe_handle;
+
+	if (unlikely((pipe_handle < 0) || (pipe_handle >= MAX_PIPES)))
+		return -EINVAL;
+
+	/* Fail if the pipe isn't open */
+	if (unlikely((pipe->flags & __CVMX_USB_PIPE_FLAGS_OPEN) == 0))
+		return -EINVAL;
+
+	/* Simply loop through and attempt to cancel each transaction */
+	while (pipe->head) {
+		int result = cvmx_usb_cancel(state, pipe_handle,
+			__cvmx_usb_get_submit_handle(usb, pipe->head));
+		if (unlikely(result != 0))
+			return result;
+	}
+	return 0;
+}
+
+
+/**
+ * Close a pipe created with cvmx_usb_open_pipe().
+ *
+ * @state:	 USB device state populated by
+ *		 cvmx_usb_initialize().
+ * @pipe_handle:
+ *		 Pipe handle to close.
+ *
+ * Returns: 0 or a negative error code. EBUSY is returned if the pipe has
+ *	    outstanding transfers.
+ */
+static int cvmx_usb_close_pipe(struct cvmx_usb_state *state, int pipe_handle)
+{
+	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
+	struct cvmx_usb_pipe *pipe = usb->pipe + pipe_handle;
+
+	if (unlikely((pipe_handle < 0) || (pipe_handle >= MAX_PIPES)))
+		return -EINVAL;
+
+	/* Fail if the pipe isn't open */
+	if (unlikely((pipe->flags & __CVMX_USB_PIPE_FLAGS_OPEN) == 0))
+		return -EINVAL;
+
+	/* Fail if the pipe has pending transactions */
+	if (unlikely(pipe->head))
+		return -EBUSY;
+
+	pipe->flags = 0;
+	__cvmx_usb_remove_pipe(&usb->idle_pipes, pipe);
+	__cvmx_usb_append_pipe(&usb->free_pipes, pipe);
+
+	return 0;
+}
+
+
+/**
+ * Register a function to be called when various USB events occur.
+ *
+ * @state:     USB device state populated by
+ *	       cvmx_usb_initialize().
+ * @reason:    Which event to register for.
+ * @callback:  Function to call when the event occurs.
+ * @user_data: User data parameter to the function.
+ *
+ * Returns: 0 or a negative error code.
+ */
+static int cvmx_usb_register_callback(struct cvmx_usb_state *state,
+				      enum cvmx_usb_callback reason,
+				      cvmx_usb_callback_func_t callback,
+				      void *user_data)
+{
+	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
+
+	if (unlikely(reason >= __CVMX_USB_CALLBACK_END))
+		return -EINVAL;
+	if (unlikely(!callback))
+		return -EINVAL;
+
+	usb->callback[reason] = callback;
+	usb->callback_data[reason] = user_data;
+
+	return 0;
+}
+
+
+/**
+ * Get the current USB protocol level frame number. The frame
+ * number is always in the range of 0-0x7ff.
+ *
+ * @state: USB device state populated by
+ *	   cvmx_usb_initialize().
+ *
+ * Returns: USB frame number
+ */
+static int cvmx_usb_get_frame_number(struct cvmx_usb_state *state)
+{
+	int frame_number;
+	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
+	union cvmx_usbcx_hfnum usbc_hfnum;
+
+	usbc_hfnum.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HFNUM(usb->index));
+	frame_number = usbc_hfnum.s.frnum;
+
+	return frame_number;
+}
+
+
+/**
+ * Poll a channel for status
+ *
+ * @usb:     USB device
+ * @channel: Channel to poll
+ *
+ * Returns: Zero on success
+ */
+static int __cvmx_usb_poll_channel(struct cvmx_usb_internal_state *usb, int channel)
+{
+	union cvmx_usbcx_hcintx usbc_hcint;
+	union cvmx_usbcx_hctsizx usbc_hctsiz;
+	union cvmx_usbcx_hccharx usbc_hcchar;
+	struct cvmx_usb_pipe *pipe;
+	struct cvmx_usb_transaction *transaction;
+	int bytes_this_transfer;
+	int bytes_in_last_packet;
+	int packets_processed;
+	int buffer_space_left;
+
+	/* Read the interrupt status bits for the channel */
+	usbc_hcint.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCINTX(channel, usb->index));
+
+	if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA) {
+		usbc_hcchar.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCCHARX(channel, usb->index));
+
+		if (usbc_hcchar.s.chena && usbc_hcchar.s.chdis) {
+			/*
+			 * There seems to be a bug in CN31XX which can cause
+			 * interrupt IN transfers to get stuck until we do a
+			 * write of HCCHARX without changing things
+			 */
+			__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCCHARX(channel, usb->index), usbc_hcchar.u32);
+			return 0;
+		}
+
+		/*
+		 * In non DMA mode the channels don't halt themselves. We need
+		 * to manually disable channels that are left running
+		 */
+		if (!usbc_hcint.s.chhltd) {
+			if (usbc_hcchar.s.chena) {
+				union cvmx_usbcx_hcintmskx hcintmsk;
+				/* Disable all interrupts except CHHLTD */
+				hcintmsk.u32 = 0;
+				hcintmsk.s.chhltdmsk = 1;
+				__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCINTMSKX(channel, usb->index), hcintmsk.u32);
+				usbc_hcchar.s.chdis = 1;
+				__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCCHARX(channel, usb->index), usbc_hcchar.u32);
+				return 0;
+			} else if (usbc_hcint.s.xfercompl) {
+				/*
+				 * Successful IN/OUT with transfer complete.
+				 * Channel halt isn't needed.
+				 */
+			} else {
+				cvmx_dprintf("USB%d: Channel %d interrupt without halt\n", usb->index, channel);
+				return 0;
+			}
+		}
+	} else {
+		/*
+		 * There is are no interrupts that we need to process when the
+		 * channel is still running
+		 */
+		if (!usbc_hcint.s.chhltd)
+			return 0;
+	}
+
+	/* Disable the channel interrupts now that it is done */
+	__cvmx_usb_write_csr32(usb, CVMX_USBCX_HCINTMSKX(channel, usb->index), 0);
+	usb->idle_hardware_channels |= (1<<channel);
+
+	/* Make sure this channel is tied to a valid pipe */
+	pipe = usb->pipe_for_channel[channel];
+	CVMX_PREFETCH(pipe, 0);
+	CVMX_PREFETCH(pipe, 128);
+	if (!pipe)
+		return 0;
+	transaction = pipe->head;
+	CVMX_PREFETCH(transaction, 0);
+
+	/*
+	 * Disconnect this pipe from the HW channel. Later the schedule
+	 * function will figure out which pipe needs to go
+	 */
+	usb->pipe_for_channel[channel] = NULL;
+	pipe->flags &= ~__CVMX_USB_PIPE_FLAGS_SCHEDULED;
+
+	/*
+	 * Read the channel config info so we can figure out how much data
+	 * transfered
+	 */
+	usbc_hcchar.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCCHARX(channel, usb->index));
+	usbc_hctsiz.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HCTSIZX(channel, usb->index));
+
+	/*
+	 * Calculating the number of bytes successfully transferred is dependent
+	 * on the transfer direction
+	 */
+	packets_processed = transaction->pktcnt - usbc_hctsiz.s.pktcnt;
+	if (usbc_hcchar.s.epdir) {
+		/*
+		 * IN transactions are easy. For every byte received the
+		 * hardware decrements xfersize. All we need to do is subtract
+		 * the current value of xfersize from its starting value and we
+		 * know how many bytes were written to the buffer
+		 */
+		bytes_this_transfer = transaction->xfersize - usbc_hctsiz.s.xfersize;
+	} else {
+		/*
+		 * OUT transaction don't decrement xfersize. Instead pktcnt is
+		 * decremented on every successful packet send. The hardware
+		 * does this when it receives an ACK, or NYET. If it doesn't
+		 * receive one of these responses pktcnt doesn't change
+		 */
+		bytes_this_transfer = packets_processed * usbc_hcchar.s.mps;
+		/*
+		 * The last packet may not be a full transfer if we didn't have
+		 * enough data
+		 */
+		if (bytes_this_transfer > transaction->xfersize)
+			bytes_this_transfer = transaction->xfersize;
+	}
+	/* Figure out how many bytes were in the last packet of the transfer */
+	if (packets_processed)
+		bytes_in_last_packet = bytes_this_transfer - (packets_processed-1) * usbc_hcchar.s.mps;
+	else
+		bytes_in_last_packet = bytes_this_transfer;
+
+	/*
+	 * As a special case, setup transactions output the setup header, not
+	 * the user's data. For this reason we don't count setup data as bytes
+	 * transferred
+	 */
+	if ((transaction->stage == CVMX_USB_STAGE_SETUP) ||
+		(transaction->stage == CVMX_USB_STAGE_SETUP_SPLIT_COMPLETE))
+		bytes_this_transfer = 0;
+
+	/*
+	 * Add the bytes transferred to the running total. It is important that
+	 * bytes_this_transfer doesn't count any data that needs to be
+	 * retransmitted
+	 */
+	transaction->actual_bytes += bytes_this_transfer;
+	if (transaction->type == CVMX_USB_TRANSFER_ISOCHRONOUS)
+		buffer_space_left = transaction->iso_packets[0].length - transaction->actual_bytes;
+	else
+		buffer_space_left = transaction->buffer_length - transaction->actual_bytes;
+
+	/*
+	 * We need to remember the PID toggle state for the next transaction.
+	 * The hardware already updated it for the next transaction
+	 */
+	pipe->pid_toggle = !(usbc_hctsiz.s.pid == 0);
+
+	/*
+	 * For high speed bulk out, assume the next transaction will need to do
+	 * a ping before proceeding. If this isn't true the ACK processing below
+	 * will clear this flag
+	 */
+	if ((pipe->device_speed == CVMX_USB_SPEED_HIGH) &&
+		(pipe->transfer_type == CVMX_USB_TRANSFER_BULK) &&
+		(pipe->transfer_dir == CVMX_USB_DIRECTION_OUT))
+		pipe->flags |= __CVMX_USB_PIPE_FLAGS_NEED_PING;
+
+	if (usbc_hcint.s.stall) {
+		/*
+		 * STALL as a response means this transaction cannot be
+		 * completed because the device can't process transactions. Tell
+		 * the user. Any data that was transferred will be counted on
+		 * the actual bytes transferred
+		 */
+		pipe->pid_toggle = 0;
+		__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_STALL);
+	} else if (usbc_hcint.s.xacterr) {
+		/*
+		 * We know at least one packet worked if we get a ACK or NAK.
+		 * Reset the retry counter
+		 */
+		if (usbc_hcint.s.nak || usbc_hcint.s.ack)
+			transaction->retries = 0;
+		transaction->retries++;
+		if (transaction->retries > MAX_RETRIES) {
+			/*
+			 * XactErr as a response means the device signaled
+			 * something wrong with the transfer. For example, PID
+			 * toggle errors cause these
+			 */
+			__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_XACTERR);
+		} else {
+			/*
+			 * If this was a split then clear our split in progress
+			 * marker
+			 */
+			if (usb->active_split == transaction)
+				usb->active_split = NULL;
+			/*
+			 * Rewind to the beginning of the transaction by anding
+			 * off the split complete bit
+			 */
+			transaction->stage &= ~1;
+			pipe->split_sc_frame = -1;
+			pipe->next_tx_frame += pipe->interval;
+			if (pipe->next_tx_frame < usb->frame_number)
+				pipe->next_tx_frame = usb->frame_number + pipe->interval -
+						      (usb->frame_number - pipe->next_tx_frame) % pipe->interval;
+		}
+	} else if (usbc_hcint.s.bblerr) {
+		/* Babble Error (BblErr) */
+		__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_BABBLEERR);
+	} else if (usbc_hcint.s.datatglerr) {
+		/* We'll retry the exact same transaction again */
+		transaction->retries++;
+	} else if (usbc_hcint.s.nyet) {
+		/*
+		 * NYET as a response is only allowed in three cases: as a
+		 * response to a ping, as a response to a split transaction, and
+		 * as a response to a bulk out. The ping case is handled by
+		 * hardware, so we only have splits and bulk out
+		 */
+		if (!__cvmx_usb_pipe_needs_split(usb, pipe)) {
+			transaction->retries = 0;
+			/*
+			 * If there is more data to go then we need to try
+			 * again. Otherwise this transaction is complete
+			 */
+			if ((buffer_space_left == 0) || (bytes_in_last_packet < pipe->max_packet))
+				__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_SUCCESS);
+		} else {
+			/*
+			 * Split transactions retry the split complete 4 times
+			 * then rewind to the start split and do the entire
+			 * transactions again
+			 */
+			transaction->retries++;
+			if ((transaction->retries & 0x3) == 0) {
+				/*
+				 * Rewind to the beginning of the transaction by
+				 * anding off the split complete bit
+				 */
+				transaction->stage &= ~1;
+				pipe->split_sc_frame = -1;
+			}
+		}
+	} else if (usbc_hcint.s.ack) {
+		transaction->retries = 0;
+		/*
+		 * The ACK bit can only be checked after the other error bits.
+		 * This is because a multi packet transfer may succeed in a
+		 * number of packets and then get a different response on the
+		 * last packet. In this case both ACK and the last response bit
+		 * will be set. If none of the other response bits is set, then
+		 * the last packet must have been an ACK
+		 *
+		 * Since we got an ACK, we know we don't need to do a ping on
+		 * this pipe
+		 */
+		pipe->flags &= ~__CVMX_USB_PIPE_FLAGS_NEED_PING;
+
+		switch (transaction->type) {
+		case CVMX_USB_TRANSFER_CONTROL:
+			switch (transaction->stage) {
+			case CVMX_USB_STAGE_NON_CONTROL:
+			case CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE:
+				/* This should be impossible */
+				__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_ERROR);
+				break;
+			case CVMX_USB_STAGE_SETUP:
+				pipe->pid_toggle = 1;
+				if (__cvmx_usb_pipe_needs_split(usb, pipe))
+					transaction->stage = CVMX_USB_STAGE_SETUP_SPLIT_COMPLETE;
+				else {
+					union cvmx_usb_control_header *header =
+						cvmx_phys_to_ptr(transaction->control_header);
+					if (header->s.length)
+						transaction->stage = CVMX_USB_STAGE_DATA;
+					else
+						transaction->stage = CVMX_USB_STAGE_STATUS;
+				}
+				break;
+			case CVMX_USB_STAGE_SETUP_SPLIT_COMPLETE:
+				{
+					union cvmx_usb_control_header *header =
+						cvmx_phys_to_ptr(transaction->control_header);
+					if (header->s.length)
+						transaction->stage = CVMX_USB_STAGE_DATA;
+					else
+						transaction->stage = CVMX_USB_STAGE_STATUS;
+				}
+				break;
+			case CVMX_USB_STAGE_DATA:
+				if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
+					transaction->stage = CVMX_USB_STAGE_DATA_SPLIT_COMPLETE;
+					/*
+					 * For setup OUT data that are splits,
+					 * the hardware doesn't appear to count
+					 * transferred data. Here we manually
+					 * update the data transferred
+					 */
+					if (!usbc_hcchar.s.epdir) {
+						if (buffer_space_left < pipe->max_packet)
+							transaction->actual_bytes += buffer_space_left;
+						else
+							transaction->actual_bytes += pipe->max_packet;
+					}
+				} else if ((buffer_space_left == 0) || (bytes_in_last_packet < pipe->max_packet)) {
+					pipe->pid_toggle = 1;
+					transaction->stage = CVMX_USB_STAGE_STATUS;
+				}
+				break;
+			case CVMX_USB_STAGE_DATA_SPLIT_COMPLETE:
+				if ((buffer_space_left == 0) || (bytes_in_last_packet < pipe->max_packet)) {
+					pipe->pid_toggle = 1;
+					transaction->stage = CVMX_USB_STAGE_STATUS;
+				} else {
+					transaction->stage = CVMX_USB_STAGE_DATA;
+				}
+				break;
+			case CVMX_USB_STAGE_STATUS:
+				if (__cvmx_usb_pipe_needs_split(usb, pipe))
+					transaction->stage = CVMX_USB_STAGE_STATUS_SPLIT_COMPLETE;
+				else
+					__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_SUCCESS);
+				break;
+			case CVMX_USB_STAGE_STATUS_SPLIT_COMPLETE:
+				__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_SUCCESS);
+				break;
+			}
+			break;
+		case CVMX_USB_TRANSFER_BULK:
+		case CVMX_USB_TRANSFER_INTERRUPT:
+			/*
+			 * The only time a bulk transfer isn't complete when it
+			 * finishes with an ACK is during a split transaction.
+			 * For splits we need to continue the transfer if more
+			 * data is needed
+			 */
+			if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
+				if (transaction->stage == CVMX_USB_STAGE_NON_CONTROL)
+					transaction->stage = CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE;
+				else {
+					if (buffer_space_left && (bytes_in_last_packet == pipe->max_packet))
+						transaction->stage = CVMX_USB_STAGE_NON_CONTROL;
+					else {
+						if (transaction->type == CVMX_USB_TRANSFER_INTERRUPT)
+							pipe->next_tx_frame += pipe->interval;
+							__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_SUCCESS);
+					}
+				}
+			} else {
+				if ((pipe->device_speed == CVMX_USB_SPEED_HIGH) &&
+				    (pipe->transfer_type == CVMX_USB_TRANSFER_BULK) &&
+				    (pipe->transfer_dir == CVMX_USB_DIRECTION_OUT) &&
+				    (usbc_hcint.s.nak))
+					pipe->flags |= __CVMX_USB_PIPE_FLAGS_NEED_PING;
+				if (!buffer_space_left || (bytes_in_last_packet < pipe->max_packet)) {
+					if (transaction->type == CVMX_USB_TRANSFER_INTERRUPT)
+						pipe->next_tx_frame += pipe->interval;
+					__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_SUCCESS);
+				}
+			}
+			break;
+		case CVMX_USB_TRANSFER_ISOCHRONOUS:
+			if (__cvmx_usb_pipe_needs_split(usb, pipe)) {
+				/*
+				 * ISOCHRONOUS OUT splits don't require a
+				 * complete split stage. Instead they use a
+				 * sequence of begin OUT splits to transfer the
+				 * data 188 bytes at a time. Once the transfer
+				 * is complete, the pipe sleeps until the next
+				 * schedule interval
+				 */
+				if (pipe->transfer_dir == CVMX_USB_DIRECTION_OUT) {
+					/*
+					 * If no space left or this wasn't a max
+					 * size packet then this transfer is
+					 * complete. Otherwise start it again to
+					 * send the next 188 bytes
+					 */
+					if (!buffer_space_left || (bytes_this_transfer < 188)) {
+						pipe->next_tx_frame += pipe->interval;
+						__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_SUCCESS);
+					}
+				} else {
+					if (transaction->stage == CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE) {
+						/*
+						 * We are in the incoming data
+						 * phase. Keep getting data
+						 * until we run out of space or
+						 * get a small packet
+						 */
+						if ((buffer_space_left == 0) || (bytes_in_last_packet < pipe->max_packet)) {
+							pipe->next_tx_frame += pipe->interval;
+							__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_SUCCESS);
+						}
+					} else
+						transaction->stage = CVMX_USB_STAGE_NON_CONTROL_SPLIT_COMPLETE;
+				}
+			} else {
+				pipe->next_tx_frame += pipe->interval;
+				__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_SUCCESS);
+			}
+			break;
+		}
+	} else if (usbc_hcint.s.nak) {
+		/*
+		 * If this was a split then clear our split in progress marker.
+		 */
+		if (usb->active_split == transaction)
+			usb->active_split = NULL;
+		/*
+		 * NAK as a response means the device couldn't accept the
+		 * transaction, but it should be retried in the future. Rewind
+		 * to the beginning of the transaction by anding off the split
+		 * complete bit. Retry in the next interval
+		 */
+		transaction->retries = 0;
+		transaction->stage &= ~1;
+		pipe->next_tx_frame += pipe->interval;
+		if (pipe->next_tx_frame < usb->frame_number)
+			pipe->next_tx_frame = usb->frame_number + pipe->interval -
+				(usb->frame_number - pipe->next_tx_frame) % pipe->interval;
+	} else {
+		struct cvmx_usb_port_status port;
+		port = cvmx_usb_get_status((struct cvmx_usb_state *)usb);
+		if (port.port_enabled) {
+			/* We'll retry the exact same transaction again */
+			transaction->retries++;
+		} else {
+			/*
+			 * We get channel halted interrupts with no result bits
+			 * sets when the cable is unplugged
+			 */
+			__cvmx_usb_perform_complete(usb, pipe, transaction, CVMX_USB_COMPLETE_ERROR);
+		}
+	}
+	return 0;
+}
+
+
+/**
+ * Poll the USB block for status and call all needed callback
+ * handlers. This function is meant to be called in the interrupt
+ * handler for the USB controller. It can also be called
+ * periodically in a loop for non-interrupt based operation.
+ *
+ * @state:	USB device state populated by
+ *		cvmx_usb_initialize().
+ *
+ * Returns: 0 or a negative error code.
+ */
+static int cvmx_usb_poll(struct cvmx_usb_state *state)
+{
+	union cvmx_usbcx_hfnum usbc_hfnum;
+	union cvmx_usbcx_gintsts usbc_gintsts;
+	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
+
+	CVMX_PREFETCH(usb, 0);
+	CVMX_PREFETCH(usb, 1*128);
+	CVMX_PREFETCH(usb, 2*128);
+	CVMX_PREFETCH(usb, 3*128);
+	CVMX_PREFETCH(usb, 4*128);
+
+	/* Update the frame counter */
+	usbc_hfnum.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HFNUM(usb->index));
+	if ((usb->frame_number&0x3fff) > usbc_hfnum.s.frnum)
+		usb->frame_number += 0x4000;
+	usb->frame_number &= ~0x3fffull;
+	usb->frame_number |= usbc_hfnum.s.frnum;
+
+	/* Read the pending interrupts */
+	usbc_gintsts.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_GINTSTS(usb->index));
+
+	/* Clear the interrupts now that we know about them */
+	__cvmx_usb_write_csr32(usb, CVMX_USBCX_GINTSTS(usb->index), usbc_gintsts.u32);
+
+	if (usbc_gintsts.s.rxflvl) {
+		/*
+		 * RxFIFO Non-Empty (RxFLvl)
+		 * Indicates that there is at least one packet pending to be
+		 * read from the RxFIFO.
+		 *
+		 * In DMA mode this is handled by hardware
+		 */
+		if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)
+			__cvmx_usb_poll_rx_fifo(usb);
+	}
+	if (usbc_gintsts.s.ptxfemp || usbc_gintsts.s.nptxfemp) {
+		/* Fill the Tx FIFOs when not in DMA mode */
+		if (usb->init_flags & CVMX_USB_INITIALIZE_FLAGS_NO_DMA)
+			__cvmx_usb_poll_tx_fifo(usb);
+	}
+	if (usbc_gintsts.s.disconnint || usbc_gintsts.s.prtint) {
+		union cvmx_usbcx_hprt usbc_hprt;
+		/*
+		 * Disconnect Detected Interrupt (DisconnInt)
+		 * Asserted when a device disconnect is detected.
+		 *
+		 * Host Port Interrupt (PrtInt)
+		 * The core sets this bit to indicate a change in port status of
+		 * one of the O2P USB core ports in Host mode. The application
+		 * must read the Host Port Control and Status (HPRT) register to
+		 * determine the exact event that caused this interrupt. The
+		 * application must clear the appropriate status bit in the Host
+		 * Port Control and Status register to clear this bit.
+		 *
+		 * Call the user's port callback
+		 */
+		__cvmx_usb_perform_callback(usb, NULL, NULL,
+					    CVMX_USB_CALLBACK_PORT_CHANGED,
+					    CVMX_USB_COMPLETE_SUCCESS);
+		/* Clear the port change bits */
+		usbc_hprt.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HPRT(usb->index));
+		usbc_hprt.s.prtena = 0;
+		__cvmx_usb_write_csr32(usb, CVMX_USBCX_HPRT(usb->index), usbc_hprt.u32);
+	}
+	if (usbc_gintsts.s.hchint) {
+		/*
+		 * Host Channels Interrupt (HChInt)
+		 * The core sets this bit to indicate that an interrupt is
+		 * pending on one of the channels of the core (in Host mode).
+		 * The application must read the Host All Channels Interrupt
+		 * (HAINT) register to determine the exact number of the channel
+		 * on which the interrupt occurred, and then read the
+		 * corresponding Host Channel-n Interrupt (HCINTn) register to
+		 * determine the exact cause of the interrupt. The application
+		 * must clear the appropriate status bit in the HCINTn register
+		 * to clear this bit.
+		 */
+		union cvmx_usbcx_haint usbc_haint;
+		usbc_haint.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HAINT(usb->index));
+		while (usbc_haint.u32) {
+			int channel;
+
+			channel = __fls(usbc_haint.u32);
+			__cvmx_usb_poll_channel(usb, channel);
+			usbc_haint.u32 ^= 1<<channel;
+		}
+	}
+
+	__cvmx_usb_schedule(usb, usbc_gintsts.s.sof);
+
+	return 0;
+}
+
 /* convert between an HCD pointer and the corresponding struct octeon_hcd */
 static inline struct octeon_hcd *hcd_to_octeon(struct usb_hcd *hcd)
 {
-- 
cgit 


From cb61c600987c61ae54edf5dee269987411bdff4b Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Sun, 6 Oct 2013 22:22:25 +0300
Subject: staging: octeon-usb: eliminate cvmx_usb_internal_state

Eliminate cvmx_usb_internal_state, just use cvmx_usb_state everywhere.
This also enables to allocate only the needed amount of data for the
USB internal state, instead of always allocating 64 KB.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/octeon-hcd.c | 210 ++++++++++++--------------------
 1 file changed, 77 insertions(+), 133 deletions(-)

diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 478a903f2bce..fa23889cc9a5 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -228,20 +228,12 @@ enum cvmx_usb_callback {
 	__CVMX_USB_CALLBACK_END
 };
 
-/**
- * USB state internal data. The contents of this structure
- * may change in future SDKs. No data in it should be referenced
- * by user's of this API.
- */
-struct cvmx_usb_state {
-	char data[65536];
-};
+struct cvmx_usb_state;
 
 /**
  * USB callback functions are always of the following type.
  * The parameters are as follows:
- *      - state = USB device state populated by
- *        cvmx_usb_initialize().
+ *      - usb = USB device state populated by cvmx_usb_initialize().
  *      - reason = The enum cvmx_usb_callback used to register
  *        the callback.
  *      - status = The enum cvmx_usb_complete representing the
@@ -255,7 +247,7 @@ struct cvmx_usb_state {
  *      - user_data = The user pointer supplied to the
  *        function cvmx_usb_submit() or
  *        cvmx_usb_register_callback() */
-typedef void (*cvmx_usb_callback_func_t)(struct cvmx_usb_state *state,
+typedef void (*cvmx_usb_callback_func_t)(struct cvmx_usb_state *usb,
                                          enum cvmx_usb_callback reason,
                                          enum cvmx_usb_complete status,
                                          int pipe_handle, int submit_handle,
@@ -486,7 +478,7 @@ struct cvmx_usb_tx_fifo {
 };
 
 /**
- * struct cvmx_usb_internal_state - the state of the USB block
+ * struct cvmx_usb_state - the state of the USB block
  *
  * init_flags:		   Flags passed to initialize.
  * index:		   Which USB block this is for.
@@ -508,7 +500,7 @@ struct cvmx_usb_tx_fifo {
  * frame_number:	   Increments every SOF interrupt for time keeping.
  * active_split:	   Points to the current active split, or NULL.
  */
-struct cvmx_usb_internal_state {
+struct cvmx_usb_state {
 	int init_flags;
 	int index;
 	int idle_hardware_channels;
@@ -597,7 +589,7 @@ static int octeon_usb_get_clock_type(void)
  *
  * Returns: Result of the read
  */
-static inline uint32_t __cvmx_usb_read_csr32(struct cvmx_usb_internal_state *usb,
+static inline uint32_t __cvmx_usb_read_csr32(struct cvmx_usb_state *usb,
 					     uint64_t address)
 {
 	uint32_t result = cvmx_read64_uint32(address ^ 4);
@@ -614,7 +606,7 @@ static inline uint32_t __cvmx_usb_read_csr32(struct cvmx_usb_internal_state *usb
  * @address: 64bit address to write
  * @value:   Value to write
  */
-static inline void __cvmx_usb_write_csr32(struct cvmx_usb_internal_state *usb,
+static inline void __cvmx_usb_write_csr32(struct cvmx_usb_state *usb,
 					  uint64_t address, uint32_t value)
 {
 	cvmx_write64_uint32(address ^ 4, value);
@@ -631,7 +623,7 @@ static inline void __cvmx_usb_write_csr32(struct cvmx_usb_internal_state *usb,
  *
  * Returns: Result of the read
  */
-static inline uint64_t __cvmx_usb_read_csr64(struct cvmx_usb_internal_state *usb,
+static inline uint64_t __cvmx_usb_read_csr64(struct cvmx_usb_state *usb,
 					     uint64_t address)
 {
 	uint64_t result = cvmx_read64_uint64(address);
@@ -647,7 +639,7 @@ static inline uint64_t __cvmx_usb_read_csr64(struct cvmx_usb_internal_state *usb
  * @address: 64bit address to write
  * @value:   Value to write
  */
-static inline void __cvmx_usb_write_csr64(struct cvmx_usb_internal_state *usb,
+static inline void __cvmx_usb_write_csr64(struct cvmx_usb_state *usb,
 					  uint64_t address, uint64_t value)
 {
 	cvmx_write64_uint64(address, value);
@@ -662,7 +654,8 @@ static inline void __cvmx_usb_write_csr64(struct cvmx_usb_internal_state *usb,
  *
  * Returns: Non zero if we need to do split transactions
  */
-static inline int __cvmx_usb_pipe_needs_split(struct cvmx_usb_internal_state *usb, struct cvmx_usb_pipe *pipe)
+static inline int __cvmx_usb_pipe_needs_split(struct cvmx_usb_state *usb,
+					      struct cvmx_usb_pipe *pipe)
 {
 	return ((pipe->device_speed != CVMX_USB_SPEED_HIGH) && (usb->usbcx_hprt.s.prtspd == CVMX_USB_SPEED_HIGH));
 }
@@ -723,7 +716,7 @@ static int cvmx_usb_get_num_ports(void)
  *
  * Returns: Transaction or NULL
  */
-static inline struct cvmx_usb_transaction *__cvmx_usb_alloc_transaction(struct cvmx_usb_internal_state *usb)
+static inline struct cvmx_usb_transaction *__cvmx_usb_alloc_transaction(struct cvmx_usb_state *usb)
 {
 	struct cvmx_usb_transaction *t;
 	t = usb->free_transaction_head;
@@ -748,7 +741,7 @@ static inline struct cvmx_usb_transaction *__cvmx_usb_alloc_transaction(struct c
  * @transaction:
  *		 Transaction to free
  */
-static inline void __cvmx_usb_free_transaction(struct cvmx_usb_internal_state *usb,
+static inline void __cvmx_usb_free_transaction(struct cvmx_usb_state *usb,
 					       struct cvmx_usb_transaction *transaction)
 {
 	transaction->flags = 0;
@@ -811,7 +804,7 @@ static inline void __cvmx_usb_remove_pipe(struct cvmx_usb_pipe_list *list, struc
  * other access to the Octeon USB port is made. The port starts
  * off in the disabled state.
  *
- * @state:	 Pointer to an empty struct cvmx_usb_state
+ * @usb:	 Pointer to an empty struct cvmx_usb_state
  *		 that will be populated by the initialize call.
  *		 This structure is then passed to all other USB
  *		 functions.
@@ -820,17 +813,13 @@ static inline void __cvmx_usb_remove_pipe(struct cvmx_usb_pipe_list *list, struc
  *
  * Returns: 0 or a negative error code.
  */
-static int cvmx_usb_initialize(struct cvmx_usb_state *state,
+static int cvmx_usb_initialize(struct cvmx_usb_state *usb,
 			       int usb_port_number)
 {
 	union cvmx_usbnx_clk_ctl usbn_clk_ctl;
 	union cvmx_usbnx_usbp_ctl_status usbn_usbp_ctl_status;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
 	enum cvmx_usb_initialize_flags flags = 0;
 
-	/* Make sure that state is large enough to store the internal state */
-	if (sizeof(*state) < sizeof(*usb))
-		return -EINVAL;
 	/* At first allow 0-1 for the usb port number */
 	if ((usb_port_number < 0) || (usb_port_number > 1))
 		return -EINVAL;
@@ -1148,15 +1137,13 @@ static int cvmx_usb_initialize(struct cvmx_usb_state *state,
  * The port should be disabled with all pipes closed when this
  * function is called.
  *
- * @state: USB device state populated by
- *	   cvmx_usb_initialize().
+ * @usb: USB device state populated by cvmx_usb_initialize().
  *
  * Returns: 0 or a negative error code.
  */
-static int cvmx_usb_shutdown(struct cvmx_usb_state *state)
+static int cvmx_usb_shutdown(struct cvmx_usb_state *usb)
 {
 	union cvmx_usbnx_clk_ctl usbn_clk_ctl;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
 
 	/* Make sure all pipes are closed */
 	if (usb->idle_pipes.head ||
@@ -1183,15 +1170,13 @@ static int cvmx_usb_shutdown(struct cvmx_usb_state *state)
  * Enable a USB port. After this call succeeds, the USB port is
  * online and servicing requests.
  *
- * @state: USB device state populated by
- *	   cvmx_usb_initialize().
+ * @usb: USB device state populated by cvmx_usb_initialize().
  *
  * Returns: 0 or a negative error code.
  */
-static int cvmx_usb_enable(struct cvmx_usb_state *state)
+static int cvmx_usb_enable(struct cvmx_usb_state *usb)
 {
 	union cvmx_usbcx_ghwcfg3 usbcx_ghwcfg3;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
 
 	usb->usbcx_hprt.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HPRT(usb->index));
 
@@ -1280,15 +1265,12 @@ static int cvmx_usb_enable(struct cvmx_usb_state *state)
  * Transactions in process will fail and call their
  * associated callbacks.
  *
- * @state: USB device state populated by
- *	   cvmx_usb_initialize().
+ * @usb: USB device state populated by cvmx_usb_initialize().
  *
  * Returns: 0 or a negative error code.
  */
-static int cvmx_usb_disable(struct cvmx_usb_state *state)
+static int cvmx_usb_disable(struct cvmx_usb_state *usb)
 {
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
-
 	/* Disable the port */
 	USB_SET_FIELD32(CVMX_USBCX_HPRT(usb->index), union cvmx_usbcx_hprt, prtena, 1);
 	return 0;
@@ -1304,16 +1286,14 @@ static int cvmx_usb_disable(struct cvmx_usb_state *state)
  * on the last call to cvmx_usb_set_status(). In order to clear
  * them, you must update the status through cvmx_usb_set_status().
  *
- * @state: USB device state populated by
- *	   cvmx_usb_initialize().
+ * @usb: USB device state populated by cvmx_usb_initialize().
  *
  * Returns: Port status information
  */
-static struct cvmx_usb_port_status cvmx_usb_get_status(struct cvmx_usb_state *state)
+static struct cvmx_usb_port_status cvmx_usb_get_status(struct cvmx_usb_state *usb)
 {
 	union cvmx_usbcx_hprt usbc_hprt;
 	struct cvmx_usb_port_status result;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
 
 	memset(&result, 0, sizeof(result));
 
@@ -1336,15 +1316,13 @@ static struct cvmx_usb_port_status cvmx_usb_get_status(struct cvmx_usb_state *st
  * status passed to this function is not used. No fields can be
  * changed through this call.
  *
- * @state:	 USB device state populated by
- *		 cvmx_usb_initialize().
+ * @usb:	 USB device state populated by cvmx_usb_initialize().
  * @port_status:
  *		 Port status to set, most like returned by cvmx_usb_get_status()
  */
-static void cvmx_usb_set_status(struct cvmx_usb_state *state,
+static void cvmx_usb_set_status(struct cvmx_usb_state *usb,
 				struct cvmx_usb_port_status port_status)
 {
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
 	usb->port_status = port_status;
 	return;
 }
@@ -1353,14 +1331,13 @@ static void cvmx_usb_set_status(struct cvmx_usb_state *state,
 /**
  * Convert a USB transaction into a handle
  *
- * @usb:	 USB device state populated by
- *		 cvmx_usb_initialize().
+ * @usb:	 USB device state populated by cvmx_usb_initialize().
  * @transaction:
  *		 Transaction to get handle for
  *
  * Returns: Handle
  */
-static inline int __cvmx_usb_get_submit_handle(struct cvmx_usb_internal_state *usb,
+static inline int __cvmx_usb_get_submit_handle(struct cvmx_usb_state *usb,
 					       struct cvmx_usb_transaction *transaction)
 {
 	return ((unsigned long)transaction - (unsigned long)usb->transaction) /
@@ -1371,13 +1348,12 @@ static inline int __cvmx_usb_get_submit_handle(struct cvmx_usb_internal_state *u
 /**
  * Convert a USB pipe into a handle
  *
- * @usb:	 USB device state populated by
- *		 cvmx_usb_initialize().
+ * @usb:	 USB device state populated by cvmx_usb_initialize().
  * @pipe:	 Pipe to get handle for
  *
  * Returns: Handle
  */
-static inline int __cvmx_usb_get_pipe_handle(struct cvmx_usb_internal_state *usb,
+static inline int __cvmx_usb_get_pipe_handle(struct cvmx_usb_state *usb,
 					     struct cvmx_usb_pipe *pipe)
 {
 	return ((unsigned long)pipe - (unsigned long)usb->pipe) / sizeof(*pipe);
@@ -1389,8 +1365,7 @@ static inline int __cvmx_usb_get_pipe_handle(struct cvmx_usb_internal_state *usb
  * must be opened before data can be transferred between a device
  * and Octeon.
  *
- * @state:	     USB device state populated by
- *		     cvmx_usb_initialize().
+ * @usb:	     USB device state populated by cvmx_usb_initialize().
  * @device_addr:
  *		     USB device address to open the pipe to
  *		     (0-127).
@@ -1438,7 +1413,7 @@ static inline int __cvmx_usb_get_pipe_handle(struct cvmx_usb_internal_state *usb
  * Returns: A non negative value is a pipe handle. Negative
  *	    values are error codes.
  */
-static int cvmx_usb_open_pipe(struct cvmx_usb_state *state,
+static int cvmx_usb_open_pipe(struct cvmx_usb_state *usb,
 			      int device_addr, int endpoint_num,
 			      enum cvmx_usb_speed device_speed, int max_packet,
 			      enum cvmx_usb_transfer transfer_type,
@@ -1447,7 +1422,6 @@ static int cvmx_usb_open_pipe(struct cvmx_usb_state *state,
 			      int hub_device_addr, int hub_port)
 {
 	struct cvmx_usb_pipe *pipe;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
 
 	if (unlikely((device_addr < 0) || (device_addr > MAX_USB_ADDRESS)))
 		return -EINVAL;
@@ -1527,10 +1501,9 @@ static int cvmx_usb_open_pipe(struct cvmx_usb_state *state,
  * in non DMA mode. It is very important that this function be called quickly
  * enough to prevent FIFO overflow.
  *
- * @usb:	USB device state populated by
- *		cvmx_usb_initialize().
+ * @usb:	USB device state populated by cvmx_usb_initialize().
  */
-static void __cvmx_usb_poll_rx_fifo(struct cvmx_usb_internal_state *usb)
+static void __cvmx_usb_poll_rx_fifo(struct cvmx_usb_state *usb)
 {
 	union cvmx_usbcx_grxstsph rx_status;
 	int channel;
@@ -1571,15 +1544,15 @@ static void __cvmx_usb_poll_rx_fifo(struct cvmx_usb_internal_state *usb)
  * Fill the TX hardware fifo with data out of the software
  * fifos
  *
- * @usb:	    USB device state populated by
- *		    cvmx_usb_initialize().
+ * @usb:	    USB device state populated by cvmx_usb_initialize().
  * @fifo:	    Software fifo to use
  * @available:	    Amount of space in the hardware fifo
  *
  * Returns: Non zero if the hardware fifo was too small and needs
  *	    to be serviced again.
  */
-static int __cvmx_usb_fill_tx_hw(struct cvmx_usb_internal_state *usb, struct cvmx_usb_tx_fifo *fifo, int available)
+static int __cvmx_usb_fill_tx_hw(struct cvmx_usb_state *usb,
+				 struct cvmx_usb_tx_fifo *fifo, int available)
 {
 	/*
 	 * We're done either when there isn't anymore space or the software FIFO
@@ -1630,10 +1603,9 @@ static int __cvmx_usb_fill_tx_hw(struct cvmx_usb_internal_state *usb, struct cvm
 /**
  * Check the hardware FIFOs and fill them as needed
  *
- * @usb:	USB device state populated by
- *		cvmx_usb_initialize().
+ * @usb:	USB device state populated by cvmx_usb_initialize().
  */
-static void __cvmx_usb_poll_tx_fifo(struct cvmx_usb_internal_state *usb)
+static void __cvmx_usb_poll_tx_fifo(struct cvmx_usb_state *usb)
 {
 	if (usb->periodic.head != usb->periodic.tail) {
 		union cvmx_usbcx_hptxsts tx_status;
@@ -1660,11 +1632,10 @@ static void __cvmx_usb_poll_tx_fifo(struct cvmx_usb_internal_state *usb)
 /**
  * Fill the TX FIFO with an outgoing packet
  *
- * @usb:	  USB device state populated by
- *		  cvmx_usb_initialize().
+ * @usb:	  USB device state populated by cvmx_usb_initialize().
  * @channel:	  Channel number to get packet from
  */
-static void __cvmx_usb_fill_tx_fifo(struct cvmx_usb_internal_state *usb, int channel)
+static void __cvmx_usb_fill_tx_fifo(struct cvmx_usb_state *usb, int channel)
 {
 	union cvmx_usbcx_hccharx hcchar;
 	union cvmx_usbcx_hcspltx usbc_hcsplt;
@@ -1712,12 +1683,11 @@ static void __cvmx_usb_fill_tx_fifo(struct cvmx_usb_internal_state *usb, int cha
  * the generic stuff will already have been done in
  * __cvmx_usb_start_channel()
  *
- * @usb:	  USB device state populated by
- *		  cvmx_usb_initialize().
+ * @usb:	  USB device state populated by cvmx_usb_initialize().
  * @channel:	  Channel to setup
  * @pipe:	  Pipe for control transaction
  */
-static void __cvmx_usb_start_channel_control(struct cvmx_usb_internal_state *usb,
+static void __cvmx_usb_start_channel_control(struct cvmx_usb_state *usb,
 					     int channel,
 					     struct cvmx_usb_pipe *pipe)
 {
@@ -1842,12 +1812,11 @@ static void __cvmx_usb_start_channel_control(struct cvmx_usb_internal_state *usb
 /**
  * Start a channel to perform the pipe's head transaction
  *
- * @usb:	  USB device state populated by
- *		  cvmx_usb_initialize().
+ * @usb:	  USB device state populated by cvmx_usb_initialize().
  * @channel:	  Channel to setup
  * @pipe:	  Pipe to start
  */
-static void __cvmx_usb_start_channel(struct cvmx_usb_internal_state *usb,
+static void __cvmx_usb_start_channel(struct cvmx_usb_state *usb,
 				     int channel,
 				     struct cvmx_usb_pipe *pipe)
 {
@@ -2138,15 +2107,14 @@ static void __cvmx_usb_start_channel(struct cvmx_usb_internal_state *usb,
 
 /**
  * Find a pipe that is ready to be scheduled to hardware.
- * @usb:	 USB device state populated by
- *		 cvmx_usb_initialize().
+ * @usb:	 USB device state populated by cvmx_usb_initialize().
  * @list:	 Pipe list to search
  * @current_frame:
  *		 Frame counter to use as a time reference.
  *
  * Returns: Pipe or NULL if none are ready
  */
-static struct cvmx_usb_pipe *__cvmx_usb_find_ready_pipe(struct cvmx_usb_internal_state *usb, struct cvmx_usb_pipe_list *list, uint64_t current_frame)
+static struct cvmx_usb_pipe *__cvmx_usb_find_ready_pipe(struct cvmx_usb_state *usb, struct cvmx_usb_pipe_list *list, uint64_t current_frame)
 {
 	struct cvmx_usb_pipe *pipe = list->head;
 	while (pipe) {
@@ -2168,11 +2136,10 @@ static struct cvmx_usb_pipe *__cvmx_usb_find_ready_pipe(struct cvmx_usb_internal
  * Called whenever a pipe might need to be scheduled to the
  * hardware.
  *
- * @usb:	 USB device state populated by
- *		 cvmx_usb_initialize().
+ * @usb:	 USB device state populated by cvmx_usb_initialize().
  * @is_sof:	 True if this schedule was called on a SOF interrupt.
  */
-static void __cvmx_usb_schedule(struct cvmx_usb_internal_state *usb, int is_sof)
+static void __cvmx_usb_schedule(struct cvmx_usb_state *usb, int is_sof)
 {
 	int channel;
 	struct cvmx_usb_pipe *pipe;
@@ -2243,8 +2210,7 @@ done:
 /**
  * Call a user's callback for a specific reason.
  *
- * @usb:	 USB device state populated by
- *		 cvmx_usb_initialize().
+ * @usb:	 USB device state populated by cvmx_usb_initialize().
  * @pipe:	 Pipe the callback is for or NULL
  * @transaction:
  *		 Transaction the callback is for or NULL
@@ -2252,7 +2218,7 @@ done:
  * @complete_code:
  *		 Completion code for the transaction, if any
  */
-static void __cvmx_usb_perform_callback(struct cvmx_usb_internal_state *usb,
+static void __cvmx_usb_perform_callback(struct cvmx_usb_state *usb,
 					struct cvmx_usb_pipe *pipe,
 					struct cvmx_usb_transaction *transaction,
 					enum cvmx_usb_callback reason,
@@ -2280,7 +2246,7 @@ static void __cvmx_usb_perform_callback(struct cvmx_usb_internal_state *usb,
 	if (!callback)
 		return;
 
-	callback((struct cvmx_usb_state *)usb, reason, complete_code, pipe_handle, submit_handle,
+	callback(usb, reason, complete_code, pipe_handle, submit_handle,
 		 bytes_transferred, user_data);
 }
 
@@ -2289,15 +2255,14 @@ static void __cvmx_usb_perform_callback(struct cvmx_usb_internal_state *usb,
  * Signal the completion of a transaction and free it. The
  * transaction will be removed from the pipe transaction list.
  *
- * @usb:	 USB device state populated by
- *		 cvmx_usb_initialize().
+ * @usb:	 USB device state populated by cvmx_usb_initialize().
  * @pipe:	 Pipe the transaction is on
  * @transaction:
  *		 Transaction that completed
  * @complete_code:
  *		 Completion code
  */
-static void __cvmx_usb_perform_complete(struct cvmx_usb_internal_state *usb,
+static void __cvmx_usb_perform_complete(struct cvmx_usb_state *usb,
 					struct cvmx_usb_pipe *pipe,
 					struct cvmx_usb_transaction *transaction,
 					enum cvmx_usb_complete complete_code)
@@ -2379,7 +2344,7 @@ done:
  * Returns: Submit handle or negative on failure. Matches the result
  *	    in the external API.
  */
-static int __cvmx_usb_submit_transaction(struct cvmx_usb_internal_state *usb,
+static int __cvmx_usb_submit_transaction(struct cvmx_usb_state *usb,
 					 int pipe_handle,
 					 enum cvmx_usb_transfer type,
 					 uint64_t buffer,
@@ -2450,8 +2415,7 @@ static int __cvmx_usb_submit_transaction(struct cvmx_usb_internal_state *usb,
 /**
  * Call to submit a USB Bulk transfer to a pipe.
  *
- * @state:	    USB device state populated by
- *		    cvmx_usb_initialize().
+ * @usb:	    USB device state populated by cvmx_usb_initialize().
  * @pipe_handle:
  *		    Handle to the pipe for the transfer.
  * @buffer:	    Physical address of the data buffer in
@@ -2477,13 +2441,12 @@ static int __cvmx_usb_submit_transaction(struct cvmx_usb_internal_state *usb,
  * Returns: A submitted transaction handle or negative on
  *	    failure. Negative values are error codes.
  */
-static int cvmx_usb_submit_bulk(struct cvmx_usb_state *state, int pipe_handle,
+static int cvmx_usb_submit_bulk(struct cvmx_usb_state *usb, int pipe_handle,
 				uint64_t buffer, int buffer_length,
 				cvmx_usb_callback_func_t callback,
 				void *user_data)
 {
 	int submit_handle;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
 
 	/* Pipe handle checking is done later in a common place */
 	if (unlikely(!buffer))
@@ -2508,8 +2471,7 @@ static int cvmx_usb_submit_bulk(struct cvmx_usb_state *state, int pipe_handle,
 /**
  * Call to submit a USB Interrupt transfer to a pipe.
  *
- * @state:	    USB device state populated by
- *		    cvmx_usb_initialize().
+ * @usb:	    USB device state populated by cvmx_usb_initialize().
  * @pipe_handle:
  *		    Handle to the pipe for the transfer.
  * @buffer:	    Physical address of the data buffer in
@@ -2535,14 +2497,13 @@ static int cvmx_usb_submit_bulk(struct cvmx_usb_state *state, int pipe_handle,
  * Returns: A submitted transaction handle or negative on
  *	    failure. Negative values are error codes.
  */
-static int cvmx_usb_submit_interrupt(struct cvmx_usb_state *state,
+static int cvmx_usb_submit_interrupt(struct cvmx_usb_state *usb,
 				     int pipe_handle, uint64_t buffer,
 				     int buffer_length,
 				     cvmx_usb_callback_func_t callback,
 				     void *user_data)
 {
 	int submit_handle;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
 
 	/* Pipe handle checking is done later in a common place */
 	if (unlikely(!buffer))
@@ -2567,8 +2528,7 @@ static int cvmx_usb_submit_interrupt(struct cvmx_usb_state *state,
 /**
  * Call to submit a USB Control transfer to a pipe.
  *
- * @state:	    USB device state populated by
- *		    cvmx_usb_initialize().
+ * @usb:	    USB device state populated by cvmx_usb_initialize().
  * @pipe_handle:
  *		    Handle to the pipe for the transfer.
  * @control_header:
@@ -2598,14 +2558,13 @@ static int cvmx_usb_submit_interrupt(struct cvmx_usb_state *state,
  * Returns: A submitted transaction handle or negative on
  *	    failure. Negative values are error codes.
  */
-static int cvmx_usb_submit_control(struct cvmx_usb_state *state,
+static int cvmx_usb_submit_control(struct cvmx_usb_state *usb,
 				   int pipe_handle, uint64_t control_header,
 				   uint64_t buffer, int buffer_length,
 				   cvmx_usb_callback_func_t callback,
 				   void *user_data)
 {
 	int submit_handle;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
 	union cvmx_usb_control_header *header =
 		cvmx_phys_to_ptr(control_header);
 
@@ -2637,8 +2596,7 @@ static int cvmx_usb_submit_control(struct cvmx_usb_state *state,
 /**
  * Call to submit a USB Isochronous transfer to a pipe.
  *
- * @state:	    USB device state populated by
- *		    cvmx_usb_initialize().
+ * @usb:	    USB device state populated by cvmx_usb_initialize().
  * @pipe_handle:
  *		    Handle to the pipe for the transfer.
  * @start_frame:
@@ -2675,7 +2633,7 @@ static int cvmx_usb_submit_control(struct cvmx_usb_state *state,
  * Returns: A submitted transaction handle or negative on
  *	    failure. Negative values are error codes.
  */
-static int cvmx_usb_submit_isochronous(struct cvmx_usb_state *state,
+static int cvmx_usb_submit_isochronous(struct cvmx_usb_state *usb,
 				       int pipe_handle, int start_frame,
 				       int number_packets, struct
 				       cvmx_usb_iso_packet packets[],
@@ -2684,7 +2642,6 @@ static int cvmx_usb_submit_isochronous(struct cvmx_usb_state *state,
 				       void *user_data)
 {
 	int submit_handle;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
 
 	/* Pipe handle checking is done later in a common place */
 	if (unlikely(start_frame < 0))
@@ -2719,8 +2676,7 @@ static int cvmx_usb_submit_isochronous(struct cvmx_usb_state *state,
  * a frame or two for the cvmx_usb_poll() function to call the
  * associated callback.
  *
- * @state:	 USB device state populated by
- *		 cvmx_usb_initialize().
+ * @usb:	 USB device state populated by cvmx_usb_initialize().
  * @pipe_handle:
  *		 Pipe handle to cancel requests in.
  * @submit_handle:
@@ -2729,11 +2685,10 @@ static int cvmx_usb_submit_isochronous(struct cvmx_usb_state *state,
  *
  * Returns: 0 or a negative error code.
  */
-static int cvmx_usb_cancel(struct cvmx_usb_state *state, int pipe_handle,
+static int cvmx_usb_cancel(struct cvmx_usb_state *usb, int pipe_handle,
 			   int submit_handle)
 {
 	struct cvmx_usb_transaction *transaction;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
 	struct cvmx_usb_pipe *pipe = usb->pipe + pipe_handle;
 
 	if (unlikely((pipe_handle < 0) || (pipe_handle >= MAX_PIPES)))
@@ -2783,16 +2738,14 @@ static int cvmx_usb_cancel(struct cvmx_usb_state *state, int pipe_handle,
  * Cancel all outstanding requests in a pipe. Logically all this
  * does is call cvmx_usb_cancel() in a loop.
  *
- * @state:	 USB device state populated by
- *		 cvmx_usb_initialize().
+ * @usb:	 USB device state populated by cvmx_usb_initialize().
  * @pipe_handle:
  *		 Pipe handle to cancel requests in.
  *
  * Returns: 0 or a negative error code.
  */
-static int cvmx_usb_cancel_all(struct cvmx_usb_state *state, int pipe_handle)
+static int cvmx_usb_cancel_all(struct cvmx_usb_state *usb, int pipe_handle)
 {
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
 	struct cvmx_usb_pipe *pipe = usb->pipe + pipe_handle;
 
 	if (unlikely((pipe_handle < 0) || (pipe_handle >= MAX_PIPES)))
@@ -2804,7 +2757,7 @@ static int cvmx_usb_cancel_all(struct cvmx_usb_state *state, int pipe_handle)
 
 	/* Simply loop through and attempt to cancel each transaction */
 	while (pipe->head) {
-		int result = cvmx_usb_cancel(state, pipe_handle,
+		int result = cvmx_usb_cancel(usb, pipe_handle,
 			__cvmx_usb_get_submit_handle(usb, pipe->head));
 		if (unlikely(result != 0))
 			return result;
@@ -2816,17 +2769,15 @@ static int cvmx_usb_cancel_all(struct cvmx_usb_state *state, int pipe_handle)
 /**
  * Close a pipe created with cvmx_usb_open_pipe().
  *
- * @state:	 USB device state populated by
- *		 cvmx_usb_initialize().
+ * @usb:	 USB device state populated by cvmx_usb_initialize().
  * @pipe_handle:
  *		 Pipe handle to close.
  *
  * Returns: 0 or a negative error code. EBUSY is returned if the pipe has
  *	    outstanding transfers.
  */
-static int cvmx_usb_close_pipe(struct cvmx_usb_state *state, int pipe_handle)
+static int cvmx_usb_close_pipe(struct cvmx_usb_state *usb, int pipe_handle)
 {
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
 	struct cvmx_usb_pipe *pipe = usb->pipe + pipe_handle;
 
 	if (unlikely((pipe_handle < 0) || (pipe_handle >= MAX_PIPES)))
@@ -2851,21 +2802,18 @@ static int cvmx_usb_close_pipe(struct cvmx_usb_state *state, int pipe_handle)
 /**
  * Register a function to be called when various USB events occur.
  *
- * @state:     USB device state populated by
- *	       cvmx_usb_initialize().
+ * @usb:       USB device state populated by cvmx_usb_initialize().
  * @reason:    Which event to register for.
  * @callback:  Function to call when the event occurs.
  * @user_data: User data parameter to the function.
  *
  * Returns: 0 or a negative error code.
  */
-static int cvmx_usb_register_callback(struct cvmx_usb_state *state,
+static int cvmx_usb_register_callback(struct cvmx_usb_state *usb,
 				      enum cvmx_usb_callback reason,
 				      cvmx_usb_callback_func_t callback,
 				      void *user_data)
 {
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
-
 	if (unlikely(reason >= __CVMX_USB_CALLBACK_END))
 		return -EINVAL;
 	if (unlikely(!callback))
@@ -2882,15 +2830,13 @@ static int cvmx_usb_register_callback(struct cvmx_usb_state *state,
  * Get the current USB protocol level frame number. The frame
  * number is always in the range of 0-0x7ff.
  *
- * @state: USB device state populated by
- *	   cvmx_usb_initialize().
+ * @usb: USB device state populated by cvmx_usb_initialize().
  *
  * Returns: USB frame number
  */
-static int cvmx_usb_get_frame_number(struct cvmx_usb_state *state)
+static int cvmx_usb_get_frame_number(struct cvmx_usb_state *usb)
 {
 	int frame_number;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
 	union cvmx_usbcx_hfnum usbc_hfnum;
 
 	usbc_hfnum.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HFNUM(usb->index));
@@ -2908,7 +2854,7 @@ static int cvmx_usb_get_frame_number(struct cvmx_usb_state *state)
  *
  * Returns: Zero on success
  */
-static int __cvmx_usb_poll_channel(struct cvmx_usb_internal_state *usb, int channel)
+static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 {
 	union cvmx_usbcx_hcintx usbc_hcint;
 	union cvmx_usbcx_hctsizx usbc_hctsiz;
@@ -3325,7 +3271,7 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_internal_state *usb, int chan
 				(usb->frame_number - pipe->next_tx_frame) % pipe->interval;
 	} else {
 		struct cvmx_usb_port_status port;
-		port = cvmx_usb_get_status((struct cvmx_usb_state *)usb);
+		port = cvmx_usb_get_status(usb);
 		if (port.port_enabled) {
 			/* We'll retry the exact same transaction again */
 			transaction->retries++;
@@ -3347,16 +3293,14 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_internal_state *usb, int chan
  * handler for the USB controller. It can also be called
  * periodically in a loop for non-interrupt based operation.
  *
- * @state:	USB device state populated by
- *		cvmx_usb_initialize().
+ * @usb: USB device state populated by cvmx_usb_initialize().
  *
  * Returns: 0 or a negative error code.
  */
-static int cvmx_usb_poll(struct cvmx_usb_state *state)
+static int cvmx_usb_poll(struct cvmx_usb_state *usb)
 {
 	union cvmx_usbcx_hfnum usbc_hfnum;
 	union cvmx_usbcx_gintsts usbc_gintsts;
-	struct cvmx_usb_internal_state *usb = (struct cvmx_usb_internal_state *)state;
 
 	CVMX_PREFETCH(usb, 0);
 	CVMX_PREFETCH(usb, 1*128);
-- 
cgit 


From 29a202fa7694f07e30530d4500e1873a3133acdc Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Sun, 6 Oct 2013 22:22:26 +0300
Subject: staging: octeon-usb: inline cvmx_usb_set_status

Inline a trivial function.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/octeon-hcd.c | 32 +++++---------------------------
 1 file changed, 5 insertions(+), 27 deletions(-)

diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index fa23889cc9a5..06133ed14d22 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -1282,9 +1282,7 @@ static int cvmx_usb_disable(struct cvmx_usb_state *usb)
  * determine if the usb port has anything connected, is enabled,
  * or has some sort of error condition. The return value of this
  * call has "changed" bits to signal of the value of some fields
- * have changed between calls. These "changed" fields are based
- * on the last call to cvmx_usb_set_status(). In order to clear
- * them, you must update the status through cvmx_usb_set_status().
+ * have changed between calls.
  *
  * @usb: USB device state populated by cvmx_usb_initialize().
  *
@@ -1308,26 +1306,6 @@ static struct cvmx_usb_port_status cvmx_usb_get_status(struct cvmx_usb_state *us
 	return result;
 }
 
-
-/**
- * Set the current state of the USB port. The status is used as
- * a reference for the "changed" bits returned by
- * cvmx_usb_get_status(). Other than serving as a reference, the
- * status passed to this function is not used. No fields can be
- * changed through this call.
- *
- * @usb:	 USB device state populated by cvmx_usb_initialize().
- * @port_status:
- *		 Port status to set, most like returned by cvmx_usb_get_status()
- */
-static void cvmx_usb_set_status(struct cvmx_usb_state *usb,
-				struct cvmx_usb_port_status port_status)
-{
-	usb->port_status = port_status;
-	return;
-}
-
-
 /**
  * Convert a USB transaction into a handle
  *
@@ -3863,7 +3841,7 @@ static int octeon_usb_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 			dev_dbg(dev, " C_CONNECTION\n");
 			/* Clears drivers internal connect status change flag */
 			spin_lock_irqsave(&priv->lock, flags);
-			cvmx_usb_set_status(&priv->usb, cvmx_usb_get_status(&priv->usb));
+			priv->usb.port_status = cvmx_usb_get_status(&priv->usb);
 			spin_unlock_irqrestore(&priv->lock, flags);
 			break;
 		case USB_PORT_FEAT_C_RESET:
@@ -3872,7 +3850,7 @@ static int octeon_usb_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 			 * Clears the driver's internal Port Reset Change flag.
 			 */
 			spin_lock_irqsave(&priv->lock, flags);
-			cvmx_usb_set_status(&priv->usb, cvmx_usb_get_status(&priv->usb));
+			priv->usb.port_status = cvmx_usb_get_status(&priv->usb);
 			spin_unlock_irqrestore(&priv->lock, flags);
 			break;
 		case USB_PORT_FEAT_C_ENABLE:
@@ -3882,7 +3860,7 @@ static int octeon_usb_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 			 * Change flag.
 			 */
 			spin_lock_irqsave(&priv->lock, flags);
-			cvmx_usb_set_status(&priv->usb, cvmx_usb_get_status(&priv->usb));
+			priv->usb.port_status = cvmx_usb_get_status(&priv->usb);
 			spin_unlock_irqrestore(&priv->lock, flags);
 			break;
 		case USB_PORT_FEAT_C_SUSPEND:
@@ -3897,7 +3875,7 @@ static int octeon_usb_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 			dev_dbg(dev, " C_OVER_CURRENT\n");
 			/* Clears the driver's overcurrent Change flag */
 			spin_lock_irqsave(&priv->lock, flags);
-			cvmx_usb_set_status(&priv->usb, cvmx_usb_get_status(&priv->usb));
+			priv->usb.port_status = cvmx_usb_get_status(&priv->usb);
 			spin_unlock_irqrestore(&priv->lock, flags);
 			break;
 		default:
-- 
cgit 


From 393e2146869c215470d6e78e946395f3331c3fd7 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Sun, 6 Oct 2013 22:22:27 +0300
Subject: staging: octeon-usb: call port change callback directly

Call port change callback directly.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/octeon-hcd.c | 132 ++++++++------------------------
 1 file changed, 31 insertions(+), 101 deletions(-)

diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 06133ed14d22..47d0585537c2 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -213,18 +213,11 @@ struct cvmx_usb_iso_packet {
  *					 if the transfer fails or is canceled.
  *					 The status parameter will contain
  *					 details of why he callback was called.
- * @CVMX_USB_CALLBACK_PORT_CHANGED:	 The status of the port changed. For
- *					 example, someone may have plugged a
- *					 device in. The status parameter
- *					 contains CVMX_USB_COMPLETE_SUCCESS. Use
- *					 cvmx_usb_get_status() to get the new
- *					 port status.
  * @__CVMX_USB_CALLBACK_END:		 Do not use. Used internally for array
  *					 bounds.
  */
 enum cvmx_usb_callback {
 	CVMX_USB_CALLBACK_TRANSFER_COMPLETE,
-	CVMX_USB_CALLBACK_PORT_CHANGED,
 	__CVMX_USB_CALLBACK_END
 };
 
@@ -245,8 +238,8 @@ struct cvmx_usb_state;
  *        with a transfer.
  *      - Actual number of bytes transfer.
  *      - user_data = The user pointer supplied to the
- *        function cvmx_usb_submit() or
- *        cvmx_usb_register_callback() */
+ *        function cvmx_usb_submit().
+ */
 typedef void (*cvmx_usb_callback_func_t)(struct cvmx_usb_state *usb,
                                          enum cvmx_usb_callback reason,
                                          enum cvmx_usb_complete status,
@@ -490,8 +483,6 @@ struct cvmx_usb_tx_fifo {
  * free_transaction_tail:  List of free transactions tail.
  * pipe:		   Storage for pipes.
  * transaction:		   Storage for transactions.
- * callback:		   User global callbacks.
- * callback_data:	   User data for each callback.
  * indent:		   Used by debug output to indent functions.
  * port_status:		   Last port status used for change notification.
  * free_pipes:		   List of all pipes that are currently closed.
@@ -510,8 +501,6 @@ struct cvmx_usb_state {
 	struct cvmx_usb_transaction *free_transaction_tail;
 	struct cvmx_usb_pipe pipe[MAX_PIPES];
 	struct cvmx_usb_transaction transaction[MAX_TRANSACTIONS];
-	cvmx_usb_callback_func_t callback[__CVMX_USB_CALLBACK_END];
-	void *callback_data[__CVMX_USB_CALLBACK_END];
 	int indent;
 	struct cvmx_usb_port_status port_status;
 	struct cvmx_usb_pipe_list free_pipes;
@@ -2202,8 +2191,8 @@ static void __cvmx_usb_perform_callback(struct cvmx_usb_state *usb,
 					enum cvmx_usb_callback reason,
 					enum cvmx_usb_complete complete_code)
 {
-	cvmx_usb_callback_func_t callback = usb->callback[reason];
-	void *user_data = usb->callback_data[reason];
+	cvmx_usb_callback_func_t callback = NULL;
+	void *user_data;
 	int submit_handle = -1;
 	int pipe_handle = -1;
 	int bytes_transferred = 0;
@@ -2408,10 +2397,8 @@ static int __cvmx_usb_submit_transaction(struct cvmx_usb_state *usb,
  *		    function isn't an error, then this function
  *		    is guaranteed to be called when the
  *		    transaction completes. If this parameter is
- *		    NULL, then the generic callback registered
- *		    through cvmx_usb_register_callback is
- *		    called. If both are NULL, then there is no
- *		    way to know when a transaction completes.
+ *		    NULL, then there is no way to know when a transaction
+ *		    completes.
  * @user_data:	    User supplied data returned when the
  *		    callback is called. This is only used if
  *		    callback in not NULL.
@@ -2464,10 +2451,8 @@ static int cvmx_usb_submit_bulk(struct cvmx_usb_state *usb, int pipe_handle,
  *		    function isn't an error, then this function
  *		    is guaranteed to be called when the
  *		    transaction completes. If this parameter is
- *		    NULL, then the generic callback registered
- *		    through cvmx_usb_register_callback is
- *		    called. If both are NULL, then there is no
- *		    way to know when a transaction completes.
+ *		    NULL, then there is no way to know when a transaction
+ *		    completes.
  * @user_data:	    User supplied data returned when the
  *		    callback is called. This is only used if
  *		    callback in not NULL.
@@ -2525,10 +2510,8 @@ static int cvmx_usb_submit_interrupt(struct cvmx_usb_state *usb,
  *		    function isn't an error, then this function
  *		    is guaranteed to be called when the
  *		    transaction completes. If this parameter is
- *		    NULL, then the generic callback registered
- *		    through cvmx_usb_register_callback is
- *		    called. If both are NULL, then there is no
- *		    way to know when a transaction completes.
+ *		    NULL, then there is no way to know when a transaction
+ *		    completes.
  * @user_data:	    User supplied data returned when the
  *		    callback is called. This is only used if
  *		    callback in not NULL.
@@ -2600,10 +2583,8 @@ static int cvmx_usb_submit_control(struct cvmx_usb_state *usb,
  *		    function isn't an error, then this function
  *		    is guaranteed to be called when the
  *		    transaction completes. If this parameter is
- *		    NULL, then the generic callback registered
- *		    through cvmx_usb_register_callback is
- *		    called. If both are NULL, then there is no
- *		    way to know when a transaction completes.
+ *		    NULL, then there is no way to know when a transaction
+ *		    completes.
  * @user_data:	    User supplied data returned when the
  *		    callback is called. This is only used if
  *		    callback in not NULL.
@@ -2776,34 +2757,6 @@ static int cvmx_usb_close_pipe(struct cvmx_usb_state *usb, int pipe_handle)
 	return 0;
 }
 
-
-/**
- * Register a function to be called when various USB events occur.
- *
- * @usb:       USB device state populated by cvmx_usb_initialize().
- * @reason:    Which event to register for.
- * @callback:  Function to call when the event occurs.
- * @user_data: User data parameter to the function.
- *
- * Returns: 0 or a negative error code.
- */
-static int cvmx_usb_register_callback(struct cvmx_usb_state *usb,
-				      enum cvmx_usb_callback reason,
-				      cvmx_usb_callback_func_t callback,
-				      void *user_data)
-{
-	if (unlikely(reason >= __CVMX_USB_CALLBACK_END))
-		return -EINVAL;
-	if (unlikely(!callback))
-		return -EINVAL;
-
-	usb->callback[reason] = callback;
-	usb->callback_data[reason] = user_data;
-
-	return 0;
-}
-
-
 /**
  * Get the current USB protocol level frame number. The frame
  * number is always in the range of 0-0x7ff.
@@ -3264,6 +3217,24 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 	return 0;
 }
 
+static inline struct octeon_hcd *cvmx_usb_to_octeon(struct cvmx_usb_state *p)
+{
+	return container_of(p, struct octeon_hcd, usb);
+}
+
+static inline struct usb_hcd *octeon_to_hcd(struct octeon_hcd *p)
+{
+	return container_of((void *)p, struct usb_hcd, hcd_priv);
+}
+
+static void octeon_usb_port_callback(struct cvmx_usb_state *usb)
+{
+	struct octeon_hcd *priv = cvmx_usb_to_octeon(usb);
+
+	spin_unlock(&priv->lock);
+	usb_hcd_poll_rh_status(octeon_to_hcd(priv));
+	spin_lock(&priv->lock);
+}
 
 /**
  * Poll the USB block for status and call all needed callback
@@ -3331,9 +3302,7 @@ static int cvmx_usb_poll(struct cvmx_usb_state *usb)
 		 *
 		 * Call the user's port callback
 		 */
-		__cvmx_usb_perform_callback(usb, NULL, NULL,
-					    CVMX_USB_CALLBACK_PORT_CHANGED,
-					    CVMX_USB_COMPLETE_SUCCESS);
+		octeon_usb_port_callback(usb);
 		/* Clear the port change bits */
 		usbc_hprt.u32 = __cvmx_usb_read_csr32(usb, CVMX_USBCX_HPRT(usb->index));
 		usbc_hprt.s.prtena = 0;
@@ -3374,16 +3343,6 @@ static inline struct octeon_hcd *hcd_to_octeon(struct usb_hcd *hcd)
 	return (struct octeon_hcd *)(hcd->hcd_priv);
 }
 
-static inline struct usb_hcd *octeon_to_hcd(struct octeon_hcd *p)
-{
-	return container_of((void *)p, struct usb_hcd, hcd_priv);
-}
-
-static inline struct octeon_hcd *cvmx_usb_to_octeon(struct cvmx_usb_state *p)
-{
-	return container_of(p, struct octeon_hcd, usb);
-}
-
 static irqreturn_t octeon_usb_irq(struct usb_hcd *hcd)
 {
 	struct octeon_hcd *priv = hcd_to_octeon(hcd);
@@ -3395,43 +3354,14 @@ static irqreturn_t octeon_usb_irq(struct usb_hcd *hcd)
 	return IRQ_HANDLED;
 }
 
-static void octeon_usb_port_callback(struct cvmx_usb_state *usb,
-				     enum cvmx_usb_callback reason,
-				     enum cvmx_usb_complete status,
-				     int pipe_handle,
-				     int submit_handle,
-				     int bytes_transferred,
-				     void *user_data)
-{
-	struct octeon_hcd *priv = cvmx_usb_to_octeon(usb);
-
-	spin_unlock(&priv->lock);
-	usb_hcd_poll_rh_status(octeon_to_hcd(priv));
-	spin_lock(&priv->lock);
-}
-
 static int octeon_usb_start(struct usb_hcd *hcd)
 {
-	struct octeon_hcd *priv = hcd_to_octeon(hcd);
-	unsigned long flags;
-
 	hcd->state = HC_STATE_RUNNING;
-	spin_lock_irqsave(&priv->lock, flags);
-	cvmx_usb_register_callback(&priv->usb, CVMX_USB_CALLBACK_PORT_CHANGED,
-				   octeon_usb_port_callback, NULL);
-	spin_unlock_irqrestore(&priv->lock, flags);
 	return 0;
 }
 
 static void octeon_usb_stop(struct usb_hcd *hcd)
 {
-	struct octeon_hcd *priv = hcd_to_octeon(hcd);
-	unsigned long flags;
-
-	spin_lock_irqsave(&priv->lock, flags);
-	cvmx_usb_register_callback(&priv->usb, CVMX_USB_CALLBACK_PORT_CHANGED,
-				   NULL, NULL);
-	spin_unlock_irqrestore(&priv->lock, flags);
 	hcd->state = HC_STATE_HALT;
 }
 
-- 
cgit 


From 75ee5124871070fc4085de7ad94565cfa423960b Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Sun, 6 Oct 2013 22:22:28 +0300
Subject: staging: octeon-usb: call transfer completion callback directly

The callback is always the same, we can just call it directly.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/octeon-hcd.c | 354 ++++++++++----------------------
 1 file changed, 111 insertions(+), 243 deletions(-)

diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 47d0585537c2..25d6e3ce84ca 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -204,48 +204,6 @@ struct cvmx_usb_iso_packet {
 	enum cvmx_usb_complete status;
 };
 
-/**
- * enum cvmx_usb_callback - possible callback reasons for the USB API
- *
- * @CVMX_USB_CALLBACK_TRANSFER_COMPLETE: A callback of this type is called when
- *					 a submitted transfer completes. The
- *					 completion callback will be called even
- *					 if the transfer fails or is canceled.
- *					 The status parameter will contain
- *					 details of why he callback was called.
- * @__CVMX_USB_CALLBACK_END:		 Do not use. Used internally for array
- *					 bounds.
- */
-enum cvmx_usb_callback {
-	CVMX_USB_CALLBACK_TRANSFER_COMPLETE,
-	__CVMX_USB_CALLBACK_END
-};
-
-struct cvmx_usb_state;
-
-/**
- * USB callback functions are always of the following type.
- * The parameters are as follows:
- *      - usb = USB device state populated by cvmx_usb_initialize().
- *      - reason = The enum cvmx_usb_callback used to register
- *        the callback.
- *      - status = The enum cvmx_usb_complete representing the
- *        status code of a transaction.
- *      - pipe_handle = The Pipe that caused this callback, or
- *        -1 if this callback wasn't associated with a pipe.
- *      - submit_handle = Transfer submit handle causing this
- *        callback, or -1 if this callback wasn't associated
- *        with a transfer.
- *      - Actual number of bytes transfer.
- *      - user_data = The user pointer supplied to the
- *        function cvmx_usb_submit().
- */
-typedef void (*cvmx_usb_callback_func_t)(struct cvmx_usb_state *usb,
-                                         enum cvmx_usb_callback reason,
-                                         enum cvmx_usb_complete status,
-                                         int pipe_handle, int submit_handle,
-                                         int bytes_transferred, void *user_data);
-
 /**
  * enum cvmx_usb_initialize_flags - flags used by the initialization function
  *
@@ -376,7 +334,6 @@ enum cvmx_usb_stage {
  * @iso_packets:	For ISO transactions, the sub packets in the request.
  * @actual_bytes:	Actual bytes transfer for this transaction.
  * @stage:		For control transactions, the current stage.
- * @callback:		User's callback function when complete.
  * @callback_data:	User's data.
  */
 struct cvmx_usb_transaction {
@@ -395,7 +352,6 @@ struct cvmx_usb_transaction {
 	int retries;
 	int actual_bytes;
 	enum cvmx_usb_stage stage;
-	cvmx_usb_callback_func_t callback;
 	void *callback_data;
 };
 
@@ -2173,51 +2129,110 @@ done:
 	return;
 }
 
+static inline struct octeon_hcd *cvmx_usb_to_octeon(struct cvmx_usb_state *p)
+{
+	return container_of(p, struct octeon_hcd, usb);
+}
 
-/**
- * Call a user's callback for a specific reason.
- *
- * @usb:	 USB device state populated by cvmx_usb_initialize().
- * @pipe:	 Pipe the callback is for or NULL
- * @transaction:
- *		 Transaction the callback is for or NULL
- * @reason:	 Reason this callback is being called
- * @complete_code:
- *		 Completion code for the transaction, if any
- */
-static void __cvmx_usb_perform_callback(struct cvmx_usb_state *usb,
-					struct cvmx_usb_pipe *pipe,
-					struct cvmx_usb_transaction *transaction,
-					enum cvmx_usb_callback reason,
-					enum cvmx_usb_complete complete_code)
+static inline struct usb_hcd *octeon_to_hcd(struct octeon_hcd *p)
 {
-	cvmx_usb_callback_func_t callback = NULL;
-	void *user_data;
-	int submit_handle = -1;
-	int pipe_handle = -1;
-	int bytes_transferred = 0;
-
-	if (pipe)
-		pipe_handle = __cvmx_usb_get_pipe_handle(usb, pipe);
-
-	if (transaction) {
-		submit_handle = __cvmx_usb_get_submit_handle(usb, transaction);
-		bytes_transferred = transaction->actual_bytes;
-		/* Transactions are allowed to override the default callback */
-		if ((reason == CVMX_USB_CALLBACK_TRANSFER_COMPLETE) && transaction->callback) {
-			callback = transaction->callback;
-			user_data = transaction->callback_data;
-		}
+	return container_of((void *)p, struct usb_hcd, hcd_priv);
+}
+
+static void octeon_usb_urb_complete_callback(struct cvmx_usb_state *usb,
+					     enum cvmx_usb_complete status,
+					     int pipe_handle,
+					     int submit_handle,
+					     int bytes_transferred,
+					     void *user_data)
+{
+	struct octeon_hcd *priv = cvmx_usb_to_octeon(usb);
+	struct usb_hcd *hcd = octeon_to_hcd(priv);
+	struct device *dev = hcd->self.controller;
+	struct urb *urb = user_data;
+
+	urb->actual_length = bytes_transferred;
+	urb->hcpriv = NULL;
+
+	if (!list_empty(&urb->urb_list)) {
+		/*
+		 * It is on the dequeue_list, but we are going to call
+		 * usb_hcd_giveback_urb(), so we must clear it from
+		 * the list.  We got to it before the
+		 * octeon_usb_urb_dequeue_work() tasklet did.
+		 */
+		list_del(&urb->urb_list);
+		/* No longer on the dequeue_list. */
+		INIT_LIST_HEAD(&urb->urb_list);
 	}
 
-	if (!callback)
-		return;
+	/* For Isochronous transactions we need to update the URB packet status
+	   list from data in our private copy */
+	if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
+		int i;
+		/*
+		 * The pointer to the private list is stored in the setup_packet
+		 * field.
+		 */
+		struct cvmx_usb_iso_packet *iso_packet =
+			(struct cvmx_usb_iso_packet *) urb->setup_packet;
+		/* Recalculate the transfer size by adding up each packet */
+		urb->actual_length = 0;
+		for (i = 0; i < urb->number_of_packets; i++) {
+			if (iso_packet[i].status == CVMX_USB_COMPLETE_SUCCESS) {
+				urb->iso_frame_desc[i].status = 0;
+				urb->iso_frame_desc[i].actual_length = iso_packet[i].length;
+				urb->actual_length += urb->iso_frame_desc[i].actual_length;
+			} else {
+				dev_dbg(dev, "ISOCHRONOUS packet=%d of %d status=%d pipe=%d submit=%d size=%d\n",
+					i, urb->number_of_packets,
+					iso_packet[i].status, pipe_handle,
+					submit_handle, iso_packet[i].length);
+				urb->iso_frame_desc[i].status = -EREMOTEIO;
+			}
+		}
+		/* Free the private list now that we don't need it anymore */
+		kfree(iso_packet);
+		urb->setup_packet = NULL;
+	}
 
-	callback(usb, reason, complete_code, pipe_handle, submit_handle,
-		 bytes_transferred, user_data);
+	switch (status) {
+	case CVMX_USB_COMPLETE_SUCCESS:
+		urb->status = 0;
+		break;
+	case CVMX_USB_COMPLETE_CANCEL:
+		if (urb->status == 0)
+			urb->status = -ENOENT;
+		break;
+	case CVMX_USB_COMPLETE_STALL:
+		dev_dbg(dev, "status=stall pipe=%d submit=%d size=%d\n",
+			pipe_handle, submit_handle, bytes_transferred);
+		urb->status = -EPIPE;
+		break;
+	case CVMX_USB_COMPLETE_BABBLEERR:
+		dev_dbg(dev, "status=babble pipe=%d submit=%d size=%d\n",
+			pipe_handle, submit_handle, bytes_transferred);
+		urb->status = -EPIPE;
+		break;
+	case CVMX_USB_COMPLETE_SHORT:
+		dev_dbg(dev, "status=short pipe=%d submit=%d size=%d\n",
+			pipe_handle, submit_handle, bytes_transferred);
+		urb->status = -EREMOTEIO;
+		break;
+	case CVMX_USB_COMPLETE_ERROR:
+	case CVMX_USB_COMPLETE_XACTERR:
+	case CVMX_USB_COMPLETE_DATATGLERR:
+	case CVMX_USB_COMPLETE_FRAMEERR:
+		dev_dbg(dev, "status=%d pipe=%d submit=%d size=%d\n",
+			status, pipe_handle, submit_handle, bytes_transferred);
+		urb->status = -EPROTO;
+		break;
+	}
+	spin_unlock(&priv->lock);
+	usb_hcd_giveback_urb(octeon_to_hcd(priv), urb, urb->status);
+	spin_lock(&priv->lock);
 }
 
-
 /**
  * Signal the completion of a transaction and free it. The
  * transaction will be removed from the pipe transaction list.
@@ -2234,6 +2249,9 @@ static void __cvmx_usb_perform_complete(struct cvmx_usb_state *usb,
 					struct cvmx_usb_transaction *transaction,
 					enum cvmx_usb_complete complete_code)
 {
+	int pipe_handle;
+	int submit_handle;
+
 	/* If this was a split then clear our split in progress marker */
 	if (usb->active_split == transaction)
 		usb->active_split = NULL;
@@ -2277,9 +2295,12 @@ static void __cvmx_usb_perform_complete(struct cvmx_usb_state *usb,
 		__cvmx_usb_append_pipe(&usb->idle_pipes, pipe);
 
 	}
-	__cvmx_usb_perform_callback(usb, pipe, transaction,
-				    CVMX_USB_CALLBACK_TRANSFER_COMPLETE,
-				    complete_code);
+	pipe_handle = __cvmx_usb_get_pipe_handle(usb, pipe);
+	submit_handle = __cvmx_usb_get_submit_handle(usb, transaction);
+	octeon_usb_urb_complete_callback(usb, complete_code, pipe_handle,
+					 submit_handle,
+					 transaction->actual_bytes,
+					 transaction->callback_data);
 	__cvmx_usb_free_transaction(usb, transaction);
 done:
 	return;
@@ -2305,7 +2326,6 @@ done:
  *		    For ISO, the number of packet in the transaction.
  * @iso_packets:
  *		    A description of each ISO packet
- * @callback:	    User callback to call when the transaction completes
  * @user_data:	    User's data for the callback
  *
  * Returns: Submit handle or negative on failure. Matches the result
@@ -2320,7 +2340,6 @@ static int __cvmx_usb_submit_transaction(struct cvmx_usb_state *usb,
 					 int iso_start_frame,
 					 int iso_number_packets,
 					 struct cvmx_usb_iso_packet *iso_packets,
-					 cvmx_usb_callback_func_t callback,
 					 void *user_data)
 {
 	int submit_handle;
@@ -2347,7 +2366,6 @@ static int __cvmx_usb_submit_transaction(struct cvmx_usb_state *usb,
 	transaction->iso_start_frame = iso_start_frame;
 	transaction->iso_number_packets = iso_number_packets;
 	transaction->iso_packets = iso_packets;
-	transaction->callback = callback;
 	transaction->callback_data = user_data;
 	if (transaction->type == CVMX_USB_TRANSFER_CONTROL)
 		transaction->stage = CVMX_USB_STAGE_SETUP;
@@ -2392,23 +2410,14 @@ static int __cvmx_usb_submit_transaction(struct cvmx_usb_state *usb,
  *		    zero.
  * @buffer_length:
  *		    Length of buffer in bytes.
- * @callback:	    Function to call when this transaction
- *		    completes. If the return value of this
- *		    function isn't an error, then this function
- *		    is guaranteed to be called when the
- *		    transaction completes. If this parameter is
- *		    NULL, then there is no way to know when a transaction
- *		    completes.
  * @user_data:	    User supplied data returned when the
- *		    callback is called. This is only used if
- *		    callback in not NULL.
+ *		    callback is called.
  *
  * Returns: A submitted transaction handle or negative on
  *	    failure. Negative values are error codes.
  */
 static int cvmx_usb_submit_bulk(struct cvmx_usb_state *usb, int pipe_handle,
 				uint64_t buffer, int buffer_length,
-				cvmx_usb_callback_func_t callback,
 				void *user_data)
 {
 	int submit_handle;
@@ -2427,7 +2436,6 @@ static int cvmx_usb_submit_bulk(struct cvmx_usb_state *usb, int pipe_handle,
 						      0, /* iso_start_frame */
 						      0, /* iso_number_packets */
 						      NULL, /* iso_packets */
-						      callback,
 						      user_data);
 	return submit_handle;
 }
@@ -2446,25 +2454,15 @@ static int cvmx_usb_submit_bulk(struct cvmx_usb_state *usb, int pipe_handle,
  *		    zero.
  * @buffer_length:
  *		    Length of buffer in bytes.
- * @callback:	    Function to call when this transaction
- *		    completes. If the return value of this
- *		    function isn't an error, then this function
- *		    is guaranteed to be called when the
- *		    transaction completes. If this parameter is
- *		    NULL, then there is no way to know when a transaction
- *		    completes.
  * @user_data:	    User supplied data returned when the
- *		    callback is called. This is only used if
- *		    callback in not NULL.
+ *		    callback is called.
  *
  * Returns: A submitted transaction handle or negative on
  *	    failure. Negative values are error codes.
  */
 static int cvmx_usb_submit_interrupt(struct cvmx_usb_state *usb,
 				     int pipe_handle, uint64_t buffer,
-				     int buffer_length,
-				     cvmx_usb_callback_func_t callback,
-				     void *user_data)
+				     int buffer_length, void *user_data)
 {
 	int submit_handle;
 
@@ -2482,7 +2480,6 @@ static int cvmx_usb_submit_interrupt(struct cvmx_usb_state *usb,
 						      0, /* iso_start_frame */
 						      0, /* iso_number_packets */
 						      NULL, /* iso_packets */
-						      callback,
 						      user_data);
 	return submit_handle;
 }
@@ -2505,16 +2502,8 @@ static int cvmx_usb_submit_interrupt(struct cvmx_usb_state *usb,
  *		    zero.
  * @buffer_length:
  *		    Length of buffer in bytes.
- * @callback:	    Function to call when this transaction
- *		    completes. If the return value of this
- *		    function isn't an error, then this function
- *		    is guaranteed to be called when the
- *		    transaction completes. If this parameter is
- *		    NULL, then there is no way to know when a transaction
- *		    completes.
  * @user_data:	    User supplied data returned when the
- *		    callback is called. This is only used if
- *		    callback in not NULL.
+ *		    callback is called.
  *
  * Returns: A submitted transaction handle or negative on
  *	    failure. Negative values are error codes.
@@ -2522,7 +2511,6 @@ static int cvmx_usb_submit_interrupt(struct cvmx_usb_state *usb,
 static int cvmx_usb_submit_control(struct cvmx_usb_state *usb,
 				   int pipe_handle, uint64_t control_header,
 				   uint64_t buffer, int buffer_length,
-				   cvmx_usb_callback_func_t callback,
 				   void *user_data)
 {
 	int submit_handle;
@@ -2548,7 +2536,6 @@ static int cvmx_usb_submit_control(struct cvmx_usb_state *usb,
 						      0, /* iso_start_frame */
 						      0, /* iso_number_packets */
 						      NULL, /* iso_packets */
-						      callback,
 						      user_data);
 	return submit_handle;
 }
@@ -2578,16 +2565,8 @@ static int cvmx_usb_submit_control(struct cvmx_usb_state *usb,
  *		    zero.
  * @buffer_length:
  *		    Length of buffer in bytes.
- * @callback:	    Function to call when this transaction
- *		    completes. If the return value of this
- *		    function isn't an error, then this function
- *		    is guaranteed to be called when the
- *		    transaction completes. If this parameter is
- *		    NULL, then there is no way to know when a transaction
- *		    completes.
  * @user_data:	    User supplied data returned when the
- *		    callback is called. This is only used if
- *		    callback in not NULL.
+ *		    callback is called.
  *
  * Returns: A submitted transaction handle or negative on
  *	    failure. Negative values are error codes.
@@ -2597,7 +2576,6 @@ static int cvmx_usb_submit_isochronous(struct cvmx_usb_state *usb,
 				       int number_packets, struct
 				       cvmx_usb_iso_packet packets[],
 				       uint64_t buffer, int buffer_length,
-				       cvmx_usb_callback_func_t callback,
 				       void *user_data)
 {
 	int submit_handle;
@@ -2622,7 +2600,6 @@ static int cvmx_usb_submit_isochronous(struct cvmx_usb_state *usb,
 						      start_frame,
 						      number_packets,
 						      packets,
-						      callback,
 						      user_data);
 	return submit_handle;
 }
@@ -3217,16 +3194,6 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 	return 0;
 }
 
-static inline struct octeon_hcd *cvmx_usb_to_octeon(struct cvmx_usb_state *p)
-{
-	return container_of(p, struct octeon_hcd, usb);
-}
-
-static inline struct usb_hcd *octeon_to_hcd(struct octeon_hcd *p)
-{
-	return container_of((void *)p, struct usb_hcd, hcd_priv);
-}
-
 static void octeon_usb_port_callback(struct cvmx_usb_state *usb)
 {
 	struct octeon_hcd *priv = cvmx_usb_to_octeon(usb);
@@ -3372,101 +3339,6 @@ static int octeon_usb_get_frame_number(struct usb_hcd *hcd)
 	return cvmx_usb_get_frame_number(&priv->usb);
 }
 
-static void octeon_usb_urb_complete_callback(struct cvmx_usb_state *usb,
-					     enum cvmx_usb_callback reason,
-					     enum cvmx_usb_complete status,
-					     int pipe_handle,
-					     int submit_handle,
-					     int bytes_transferred,
-					     void *user_data)
-{
-	struct octeon_hcd *priv = cvmx_usb_to_octeon(usb);
-	struct usb_hcd *hcd = octeon_to_hcd(priv);
-	struct device *dev = hcd->self.controller;
-	struct urb *urb = user_data;
-
-	urb->actual_length = bytes_transferred;
-	urb->hcpriv = NULL;
-
-	if (!list_empty(&urb->urb_list)) {
-		/*
-		 * It is on the dequeue_list, but we are going to call
-		 * usb_hcd_giveback_urb(), so we must clear it from
-		 * the list.  We got to it before the
-		 * octeon_usb_urb_dequeue_work() tasklet did.
-		 */
-		list_del(&urb->urb_list);
-		/* No longer on the dequeue_list. */
-		INIT_LIST_HEAD(&urb->urb_list);
-	}
-
-	/* For Isochronous transactions we need to update the URB packet status
-	   list from data in our private copy */
-	if (usb_pipetype(urb->pipe) == PIPE_ISOCHRONOUS) {
-		int i;
-		/*
-		 * The pointer to the private list is stored in the setup_packet
-		 * field.
-		 */
-		struct cvmx_usb_iso_packet *iso_packet =
-			(struct cvmx_usb_iso_packet *) urb->setup_packet;
-		/* Recalculate the transfer size by adding up each packet */
-		urb->actual_length = 0;
-		for (i = 0; i < urb->number_of_packets; i++) {
-			if (iso_packet[i].status == CVMX_USB_COMPLETE_SUCCESS) {
-				urb->iso_frame_desc[i].status = 0;
-				urb->iso_frame_desc[i].actual_length = iso_packet[i].length;
-				urb->actual_length += urb->iso_frame_desc[i].actual_length;
-			} else {
-				dev_dbg(dev, "ISOCHRONOUS packet=%d of %d status=%d pipe=%d submit=%d size=%d\n",
-					i, urb->number_of_packets,
-					iso_packet[i].status, pipe_handle,
-					submit_handle, iso_packet[i].length);
-				urb->iso_frame_desc[i].status = -EREMOTEIO;
-			}
-		}
-		/* Free the private list now that we don't need it anymore */
-		kfree(iso_packet);
-		urb->setup_packet = NULL;
-	}
-
-	switch (status) {
-	case CVMX_USB_COMPLETE_SUCCESS:
-		urb->status = 0;
-		break;
-	case CVMX_USB_COMPLETE_CANCEL:
-		if (urb->status == 0)
-			urb->status = -ENOENT;
-		break;
-	case CVMX_USB_COMPLETE_STALL:
-		dev_dbg(dev, "status=stall pipe=%d submit=%d size=%d\n",
-			pipe_handle, submit_handle, bytes_transferred);
-		urb->status = -EPIPE;
-		break;
-	case CVMX_USB_COMPLETE_BABBLEERR:
-		dev_dbg(dev, "status=babble pipe=%d submit=%d size=%d\n",
-			pipe_handle, submit_handle, bytes_transferred);
-		urb->status = -EPIPE;
-		break;
-	case CVMX_USB_COMPLETE_SHORT:
-		dev_dbg(dev, "status=short pipe=%d submit=%d size=%d\n",
-			pipe_handle, submit_handle, bytes_transferred);
-		urb->status = -EREMOTEIO;
-		break;
-	case CVMX_USB_COMPLETE_ERROR:
-	case CVMX_USB_COMPLETE_XACTERR:
-	case CVMX_USB_COMPLETE_DATATGLERR:
-	case CVMX_USB_COMPLETE_FRAMEERR:
-		dev_dbg(dev, "status=%d pipe=%d submit=%d size=%d\n",
-			status, pipe_handle, submit_handle, bytes_transferred);
-		urb->status = -EPROTO;
-		break;
-	}
-	spin_unlock(&priv->lock);
-	usb_hcd_giveback_urb(octeon_to_hcd(priv), urb, urb->status);
-	spin_lock(&priv->lock);
-}
-
 static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 				  struct urb *urb,
 				  gfp_t mem_flags)
@@ -3595,7 +3467,6 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 							iso_packet,
 							urb->transfer_dma,
 							urb->transfer_buffer_length,
-							octeon_usb_urb_complete_callback,
 							urb);
 			/*
 			 * If submit failed we need to free our private packet
@@ -3613,7 +3484,6 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 		submit_handle = cvmx_usb_submit_interrupt(&priv->usb, pipe_handle,
 					      urb->transfer_dma,
 					      urb->transfer_buffer_length,
-					      octeon_usb_urb_complete_callback,
 					      urb);
 		break;
 	case PIPE_CONTROL:
@@ -3623,7 +3493,6 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 					    urb->setup_dma,
 					    urb->transfer_dma,
 					    urb->transfer_buffer_length,
-					    octeon_usb_urb_complete_callback,
 					    urb);
 		break;
 	case PIPE_BULK:
@@ -3632,7 +3501,6 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 		submit_handle = cvmx_usb_submit_bulk(&priv->usb, pipe_handle,
 					 urb->transfer_dma,
 					 urb->transfer_buffer_length,
-					 octeon_usb_urb_complete_callback,
 					 urb);
 		break;
 	}
-- 
cgit 


From 0cce1004c10d7ecf46a94773aca930529d5b72b3 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Sun, 6 Oct 2013 22:22:29 +0300
Subject: staging: octeon-usb: replace generic transfer callback data with urb

URB is always passed, so we can use strong typing here.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/octeon-hcd.c | 43 +++++++++++++++------------------
 1 file changed, 19 insertions(+), 24 deletions(-)

diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 25d6e3ce84ca..9ae8c1d4e980 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -334,7 +334,7 @@ enum cvmx_usb_stage {
  * @iso_packets:	For ISO transactions, the sub packets in the request.
  * @actual_bytes:	Actual bytes transfer for this transaction.
  * @stage:		For control transactions, the current stage.
- * @callback_data:	User's data.
+ * @urb:		URB.
  */
 struct cvmx_usb_transaction {
 	struct cvmx_usb_transaction *prev;
@@ -352,7 +352,7 @@ struct cvmx_usb_transaction {
 	int retries;
 	int actual_bytes;
 	enum cvmx_usb_stage stage;
-	void *callback_data;
+	struct urb *urb;
 };
 
 /**
@@ -2144,12 +2144,11 @@ static void octeon_usb_urb_complete_callback(struct cvmx_usb_state *usb,
 					     int pipe_handle,
 					     int submit_handle,
 					     int bytes_transferred,
-					     void *user_data)
+					     struct urb *urb)
 {
 	struct octeon_hcd *priv = cvmx_usb_to_octeon(usb);
 	struct usb_hcd *hcd = octeon_to_hcd(priv);
 	struct device *dev = hcd->self.controller;
-	struct urb *urb = user_data;
 
 	urb->actual_length = bytes_transferred;
 	urb->hcpriv = NULL;
@@ -2300,7 +2299,7 @@ static void __cvmx_usb_perform_complete(struct cvmx_usb_state *usb,
 	octeon_usb_urb_complete_callback(usb, complete_code, pipe_handle,
 					 submit_handle,
 					 transaction->actual_bytes,
-					 transaction->callback_data);
+					 transaction->urb);
 	__cvmx_usb_free_transaction(usb, transaction);
 done:
 	return;
@@ -2326,7 +2325,7 @@ done:
  *		    For ISO, the number of packet in the transaction.
  * @iso_packets:
  *		    A description of each ISO packet
- * @user_data:	    User's data for the callback
+ * @urb:	    URB for the callback
  *
  * Returns: Submit handle or negative on failure. Matches the result
  *	    in the external API.
@@ -2340,7 +2339,7 @@ static int __cvmx_usb_submit_transaction(struct cvmx_usb_state *usb,
 					 int iso_start_frame,
 					 int iso_number_packets,
 					 struct cvmx_usb_iso_packet *iso_packets,
-					 void *user_data)
+					 struct urb *urb)
 {
 	int submit_handle;
 	struct cvmx_usb_transaction *transaction;
@@ -2366,7 +2365,7 @@ static int __cvmx_usb_submit_transaction(struct cvmx_usb_state *usb,
 	transaction->iso_start_frame = iso_start_frame;
 	transaction->iso_number_packets = iso_number_packets;
 	transaction->iso_packets = iso_packets;
-	transaction->callback_data = user_data;
+	transaction->urb = urb;
 	if (transaction->type == CVMX_USB_TRANSFER_CONTROL)
 		transaction->stage = CVMX_USB_STAGE_SETUP;
 	else
@@ -2410,15 +2409,14 @@ static int __cvmx_usb_submit_transaction(struct cvmx_usb_state *usb,
  *		    zero.
  * @buffer_length:
  *		    Length of buffer in bytes.
- * @user_data:	    User supplied data returned when the
- *		    callback is called.
+ * @urb:	    URB returned when the callback is called.
  *
  * Returns: A submitted transaction handle or negative on
  *	    failure. Negative values are error codes.
  */
 static int cvmx_usb_submit_bulk(struct cvmx_usb_state *usb, int pipe_handle,
 				uint64_t buffer, int buffer_length,
-				void *user_data)
+				struct urb *urb)
 {
 	int submit_handle;
 
@@ -2436,7 +2434,7 @@ static int cvmx_usb_submit_bulk(struct cvmx_usb_state *usb, int pipe_handle,
 						      0, /* iso_start_frame */
 						      0, /* iso_number_packets */
 						      NULL, /* iso_packets */
-						      user_data);
+						      urb);
 	return submit_handle;
 }
 
@@ -2454,15 +2452,14 @@ static int cvmx_usb_submit_bulk(struct cvmx_usb_state *usb, int pipe_handle,
  *		    zero.
  * @buffer_length:
  *		    Length of buffer in bytes.
- * @user_data:	    User supplied data returned when the
- *		    callback is called.
+ * @urb:	    URB returned when the callback is called.
  *
  * Returns: A submitted transaction handle or negative on
  *	    failure. Negative values are error codes.
  */
 static int cvmx_usb_submit_interrupt(struct cvmx_usb_state *usb,
 				     int pipe_handle, uint64_t buffer,
-				     int buffer_length, void *user_data)
+				     int buffer_length, struct urb *urb)
 {
 	int submit_handle;
 
@@ -2480,7 +2477,7 @@ static int cvmx_usb_submit_interrupt(struct cvmx_usb_state *usb,
 						      0, /* iso_start_frame */
 						      0, /* iso_number_packets */
 						      NULL, /* iso_packets */
-						      user_data);
+						      urb);
 	return submit_handle;
 }
 
@@ -2502,8 +2499,7 @@ static int cvmx_usb_submit_interrupt(struct cvmx_usb_state *usb,
  *		    zero.
  * @buffer_length:
  *		    Length of buffer in bytes.
- * @user_data:	    User supplied data returned when the
- *		    callback is called.
+ * @urb:	    URB returned when the callback is called.
  *
  * Returns: A submitted transaction handle or negative on
  *	    failure. Negative values are error codes.
@@ -2511,7 +2507,7 @@ static int cvmx_usb_submit_interrupt(struct cvmx_usb_state *usb,
 static int cvmx_usb_submit_control(struct cvmx_usb_state *usb,
 				   int pipe_handle, uint64_t control_header,
 				   uint64_t buffer, int buffer_length,
-				   void *user_data)
+				   struct urb *urb)
 {
 	int submit_handle;
 	union cvmx_usb_control_header *header =
@@ -2536,7 +2532,7 @@ static int cvmx_usb_submit_control(struct cvmx_usb_state *usb,
 						      0, /* iso_start_frame */
 						      0, /* iso_number_packets */
 						      NULL, /* iso_packets */
-						      user_data);
+						      urb);
 	return submit_handle;
 }
 
@@ -2565,8 +2561,7 @@ static int cvmx_usb_submit_control(struct cvmx_usb_state *usb,
  *		    zero.
  * @buffer_length:
  *		    Length of buffer in bytes.
- * @user_data:	    User supplied data returned when the
- *		    callback is called.
+ * @urb:	    URB returned when the callback is called.
  *
  * Returns: A submitted transaction handle or negative on
  *	    failure. Negative values are error codes.
@@ -2576,7 +2571,7 @@ static int cvmx_usb_submit_isochronous(struct cvmx_usb_state *usb,
 				       int number_packets, struct
 				       cvmx_usb_iso_packet packets[],
 				       uint64_t buffer, int buffer_length,
-				       void *user_data)
+				       struct urb *urb)
 {
 	int submit_handle;
 
@@ -2600,7 +2595,7 @@ static int cvmx_usb_submit_isochronous(struct cvmx_usb_state *usb,
 						      start_frame,
 						      number_packets,
 						      packets,
-						      user_data);
+						      urb);
 	return submit_handle;
 }
 
-- 
cgit 


From 9ccca707183f2b425842db6624dd7ba6c7484762 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Sun, 6 Oct 2013 22:22:30 +0300
Subject: staging: octeon-usb: cvmx_usb_submit_bulk: get params from urb

Get the transfer parameters from urb.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/octeon-hcd.c | 24 ++++--------------------
 1 file changed, 4 insertions(+), 20 deletions(-)

diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 9ae8c1d4e980..255503938a1a 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -2402,34 +2402,20 @@ static int __cvmx_usb_submit_transaction(struct cvmx_usb_state *usb,
  * @usb:	    USB device state populated by cvmx_usb_initialize().
  * @pipe_handle:
  *		    Handle to the pipe for the transfer.
- * @buffer:	    Physical address of the data buffer in
- *		    memory. Note that this is NOT A POINTER, but
- *		    the full 64bit physical address of the
- *		    buffer. This may be zero if buffer_length is
- *		    zero.
- * @buffer_length:
- *		    Length of buffer in bytes.
- * @urb:	    URB returned when the callback is called.
+ * @urb:	    URB.
  *
  * Returns: A submitted transaction handle or negative on
  *	    failure. Negative values are error codes.
  */
 static int cvmx_usb_submit_bulk(struct cvmx_usb_state *usb, int pipe_handle,
-				uint64_t buffer, int buffer_length,
 				struct urb *urb)
 {
 	int submit_handle;
 
-	/* Pipe handle checking is done later in a common place */
-	if (unlikely(!buffer))
-		return -EINVAL;
-	if (unlikely(buffer_length < 0))
-		return -EINVAL;
-
 	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
 						      CVMX_USB_TRANSFER_BULK,
-						      buffer,
-						      buffer_length,
+						      urb->transfer_dma,
+						      urb->transfer_buffer_length,
 						      0, /* control_header */
 						      0, /* iso_start_frame */
 						      0, /* iso_number_packets */
@@ -3494,9 +3480,7 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 		dev_dbg(dev, "Submit bulk to %d.%d\n",
 			usb_pipedevice(urb->pipe), usb_pipeendpoint(urb->pipe));
 		submit_handle = cvmx_usb_submit_bulk(&priv->usb, pipe_handle,
-					 urb->transfer_dma,
-					 urb->transfer_buffer_length,
-					 urb);
+						     urb);
 		break;
 	}
 	if (submit_handle < 0) {
-- 
cgit 


From 2ae09e872197f5f5ce3976c4c2c98bd7352746d0 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Sun, 6 Oct 2013 22:22:31 +0300
Subject: staging: octeon-usb: cvmx_usb_submit_control: get params from urb

Get the transfer parameters from urb.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/octeon-hcd.c | 33 ++++++---------------------------
 1 file changed, 6 insertions(+), 27 deletions(-)

diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 255503938a1a..27f73db9f964 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -2474,45 +2474,27 @@ static int cvmx_usb_submit_interrupt(struct cvmx_usb_state *usb,
  * @usb:	    USB device state populated by cvmx_usb_initialize().
  * @pipe_handle:
  *		    Handle to the pipe for the transfer.
- * @control_header:
- *		    USB 8 byte control header physical address.
- *		    Note that this is NOT A POINTER, but the
- *		    full 64bit physical address of the buffer.
- * @buffer:	    Physical address of the data buffer in
- *		    memory. Note that this is NOT A POINTER, but
- *		    the full 64bit physical address of the
- *		    buffer. This may be zero if buffer_length is
- *		    zero.
- * @buffer_length:
- *		    Length of buffer in bytes.
- * @urb:	    URB returned when the callback is called.
+ * @urb:	    URB.
  *
  * Returns: A submitted transaction handle or negative on
  *	    failure. Negative values are error codes.
  */
-static int cvmx_usb_submit_control(struct cvmx_usb_state *usb,
-				   int pipe_handle, uint64_t control_header,
-				   uint64_t buffer, int buffer_length,
+static int cvmx_usb_submit_control(struct cvmx_usb_state *usb, int pipe_handle,
 				   struct urb *urb)
 {
 	int submit_handle;
+	int buffer_length = urb->transfer_buffer_length;
+	uint64_t control_header = urb->setup_dma;
 	union cvmx_usb_control_header *header =
 		cvmx_phys_to_ptr(control_header);
 
 	/* Pipe handle checking is done later in a common place */
-	if (unlikely(!control_header))
-		return -EINVAL;
-	/* Some drivers send a buffer with a zero length. God only knows why */
-	if (unlikely(buffer && (buffer_length < 0)))
-		return -EINVAL;
-	if (unlikely(!buffer && (buffer_length != 0)))
-		return -EINVAL;
 	if ((header->s.request_type & 0x80) == 0)
 		buffer_length = le16_to_cpu(header->s.length);
 
 	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
 						      CVMX_USB_TRANSFER_CONTROL,
-						      buffer,
+						      urb->transfer_dma,
 						      buffer_length,
 						      control_header,
 						      0, /* iso_start_frame */
@@ -3471,10 +3453,7 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 		dev_dbg(dev, "Submit control to %d.%d\n",
 			usb_pipedevice(urb->pipe), usb_pipeendpoint(urb->pipe));
 		submit_handle = cvmx_usb_submit_control(&priv->usb, pipe_handle,
-					    urb->setup_dma,
-					    urb->transfer_dma,
-					    urb->transfer_buffer_length,
-					    urb);
+							urb);
 		break;
 	case PIPE_BULK:
 		dev_dbg(dev, "Submit bulk to %d.%d\n",
-- 
cgit 


From 9fdbb6964b80eb1bb385a8ef3cbbbff0d1c91193 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Sun, 6 Oct 2013 22:22:32 +0300
Subject: staging: octeon-usb: cvmx_usb_submit_interrupt: get params from urb

Get the transfer parameters from urb.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/octeon-hcd.c | 26 +++++---------------------
 1 file changed, 5 insertions(+), 21 deletions(-)

diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 27f73db9f964..14062a0e8ebb 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -2431,34 +2431,20 @@ static int cvmx_usb_submit_bulk(struct cvmx_usb_state *usb, int pipe_handle,
  * @usb:	    USB device state populated by cvmx_usb_initialize().
  * @pipe_handle:
  *		    Handle to the pipe for the transfer.
- * @buffer:	    Physical address of the data buffer in
- *		    memory. Note that this is NOT A POINTER, but
- *		    the full 64bit physical address of the
- *		    buffer. This may be zero if buffer_length is
- *		    zero.
- * @buffer_length:
- *		    Length of buffer in bytes.
  * @urb:	    URB returned when the callback is called.
  *
  * Returns: A submitted transaction handle or negative on
  *	    failure. Negative values are error codes.
  */
 static int cvmx_usb_submit_interrupt(struct cvmx_usb_state *usb,
-				     int pipe_handle, uint64_t buffer,
-				     int buffer_length, struct urb *urb)
+				     int pipe_handle, struct urb *urb)
 {
 	int submit_handle;
 
-	/* Pipe handle checking is done later in a common place */
-	if (unlikely(!buffer))
-		return -EINVAL;
-	if (unlikely(buffer_length < 0))
-		return -EINVAL;
-
 	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
 						      CVMX_USB_TRANSFER_INTERRUPT,
-						      buffer,
-						      buffer_length,
+						      urb->transfer_dma,
+						      urb->transfer_buffer_length,
 						      0, /* control_header */
 						      0, /* iso_start_frame */
 						      0, /* iso_number_packets */
@@ -3444,10 +3430,8 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 	case PIPE_INTERRUPT:
 		dev_dbg(dev, "Submit interrupt to %d.%d\n",
 			usb_pipedevice(urb->pipe), usb_pipeendpoint(urb->pipe));
-		submit_handle = cvmx_usb_submit_interrupt(&priv->usb, pipe_handle,
-					      urb->transfer_dma,
-					      urb->transfer_buffer_length,
-					      urb);
+		submit_handle = cvmx_usb_submit_interrupt(&priv->usb,
+							  pipe_handle, urb);
 		break;
 	case PIPE_CONTROL:
 		dev_dbg(dev, "Submit control to %d.%d\n",
-- 
cgit 


From e16b5e3f14365c29f84e2fa5ab4780e58a6736f1 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Sun, 6 Oct 2013 22:22:33 +0300
Subject: staging: octeon-usb: cvmx_usb_submit_control: get params from urb

Get the transfer parameters from urb.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/octeon-hcd.c | 56 ++++++---------------------------
 1 file changed, 10 insertions(+), 46 deletions(-)

diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 14062a0e8ebb..0a448aead872 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -2497,57 +2497,25 @@ static int cvmx_usb_submit_control(struct cvmx_usb_state *usb, int pipe_handle,
  * @usb:	    USB device state populated by cvmx_usb_initialize().
  * @pipe_handle:
  *		    Handle to the pipe for the transfer.
- * @start_frame:
- *		    Number of frames into the future to schedule
- *		    this transaction.
- * @number_packets:
- *		    Number of sequential packets to transfer.
- *		    "packets" is a pointer to an array of this
- *		    many packet structures.
- * @packets:	    Description of each transfer packet as
- *		    defined by struct cvmx_usb_iso_packet. The array
- *		    pointed to here must stay valid until the
- *		    complete callback is called.
- * @buffer:	    Physical address of the data buffer in
- *		    memory. Note that this is NOT A POINTER, but
- *		    the full 64bit physical address of the
- *		    buffer. This may be zero if buffer_length is
- *		    zero.
- * @buffer_length:
- *		    Length of buffer in bytes.
  * @urb:	    URB returned when the callback is called.
  *
  * Returns: A submitted transaction handle or negative on
  *	    failure. Negative values are error codes.
  */
 static int cvmx_usb_submit_isochronous(struct cvmx_usb_state *usb,
-				       int pipe_handle, int start_frame,
-				       int number_packets, struct
-				       cvmx_usb_iso_packet packets[],
-				       uint64_t buffer, int buffer_length,
-				       struct urb *urb)
+				       int pipe_handle, struct urb *urb)
 {
 	int submit_handle;
+	struct cvmx_usb_iso_packet *packets;
 
-	/* Pipe handle checking is done later in a common place */
-	if (unlikely(start_frame < 0))
-		return -EINVAL;
-	if (unlikely(number_packets < 1))
-		return -EINVAL;
-	if (unlikely(!packets))
-		return -EINVAL;
-	if (unlikely(!buffer))
-		return -EINVAL;
-	if (unlikely(buffer_length < 0))
-		return -EINVAL;
-
+	packets = (struct cvmx_usb_iso_packet *) urb->setup_packet;
 	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
 						      CVMX_USB_TRANSFER_ISOCHRONOUS,
-						      buffer,
-						      buffer_length,
+						      urb->transfer_dma,
+						      urb->transfer_buffer_length,
 						      0, /* control_header */
-						      start_frame,
-						      number_packets,
+						      urb->start_frame,
+						      urb->number_of_packets,
 						      packets,
 						      urb);
 	return submit_handle;
@@ -3410,13 +3378,9 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 			 * this saves us a bunch of logic.
 			 */
 			urb->setup_packet = (char *)iso_packet;
-			submit_handle = cvmx_usb_submit_isochronous(&priv->usb, pipe_handle,
-							urb->start_frame,
-							urb->number_of_packets,
-							iso_packet,
-							urb->transfer_dma,
-							urb->transfer_buffer_length,
-							urb);
+			submit_handle = cvmx_usb_submit_isochronous(&priv->usb,
+								    pipe_handle,
+								    urb);
 			/*
 			 * If submit failed we need to free our private packet
 			 * list.
-- 
cgit 


From be44063df5b1eb1d10066c9d88c514d49411748b Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Sun, 6 Oct 2013 22:22:34 +0300
Subject: staging: octeon-usb: clean up hcpriv usage

Use ep->hcpriv for pipe handle and urb->hcpriv for submit handle,
instead of packing both into the same field.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/octeon-hcd.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 0a448aead872..afaf991b22d7 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -3348,9 +3348,9 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 			dev_dbg(dev, "Failed to create pipe\n");
 			return -ENOMEM;
 		}
-		ep->hcpriv = (void *)(0x10000L + pipe_handle);
+		ep->hcpriv = (void *)(long)pipe_handle;
 	} else {
-		pipe_handle = 0xffff & (long)ep->hcpriv;
+		pipe_handle = (long)ep->hcpriv;
 	}
 
 	switch (usb_pipetype(urb->pipe)) {
@@ -3415,7 +3415,7 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 		dev_dbg(dev, "Failed to submit\n");
 		return -ENOMEM;
 	}
-	urb->hcpriv = (void *)(long)(((submit_handle & 0xffff) << 16) | pipe_handle);
+	urb->hcpriv = (void *)(long)submit_handle;
 	spin_unlock_irqrestore(&priv->lock, flags);
 	return 0;
 }
@@ -3434,8 +3434,8 @@ static void octeon_usb_urb_dequeue_work(unsigned long arg)
 		list_del(&urb->urb_list);
 		/* not enqueued on dequeue_list */
 		INIT_LIST_HEAD(&urb->urb_list);
-		pipe_handle = 0xffff & (long)urb->hcpriv;
-		submit_handle = ((long)urb->hcpriv) >> 16;
+		pipe_handle = (long)urb->ep->hcpriv;
+		submit_handle = (long)urb->hcpriv;
 		cvmx_usb_cancel(&priv->usb, pipe_handle, submit_handle);
 	}
 
@@ -3468,7 +3468,7 @@ static void octeon_usb_endpoint_disable(struct usb_hcd *hcd, struct usb_host_end
 
 	if (ep->hcpriv) {
 		struct octeon_hcd *priv = hcd_to_octeon(hcd);
-		int pipe_handle = 0xffff & (long)ep->hcpriv;
+		int pipe_handle = (long)ep->hcpriv;
 		unsigned long flags;
 		spin_lock_irqsave(&priv->lock, flags);
 		cvmx_usb_cancel_all(&priv->usb, pipe_handle);
-- 
cgit 


From 60f815078f8e2040546c3a4c5c9eb62b07f417cb Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Sun, 6 Oct 2013 22:22:35 +0300
Subject: staging: octeon-usb: eliminate pipe_handle

Eliminate pipe_handle, use a direct reference instead.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/octeon-hcd.c | 221 +++++++++++++-------------------
 1 file changed, 92 insertions(+), 129 deletions(-)

diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index afaf991b22d7..b07425c890ac 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -1267,22 +1267,6 @@ static inline int __cvmx_usb_get_submit_handle(struct cvmx_usb_state *usb,
 			sizeof(*transaction);
 }
 
-
-/**
- * Convert a USB pipe into a handle
- *
- * @usb:	 USB device state populated by cvmx_usb_initialize().
- * @pipe:	 Pipe to get handle for
- *
- * Returns: Handle
- */
-static inline int __cvmx_usb_get_pipe_handle(struct cvmx_usb_state *usb,
-					     struct cvmx_usb_pipe *pipe)
-{
-	return ((unsigned long)pipe - (unsigned long)usb->pipe) / sizeof(*pipe);
-}
-
-
 /**
  * Open a virtual pipe between the host and a USB device. A pipe
  * must be opened before data can be transferred between a device
@@ -1333,50 +1317,55 @@ static inline int __cvmx_usb_get_pipe_handle(struct cvmx_usb_state *usb,
  *		     this is only used for full/low speed
  *		     devices behind a high speed hub.
  *
- * Returns: A non negative value is a pipe handle. Negative
- *	    values are error codes.
+ * Returns: A non-NULL value is a pipe. NULL means an error.
  */
-static int cvmx_usb_open_pipe(struct cvmx_usb_state *usb,
-			      int device_addr, int endpoint_num,
-			      enum cvmx_usb_speed device_speed, int max_packet,
-			      enum cvmx_usb_transfer transfer_type,
-			      enum cvmx_usb_direction transfer_dir,
-			      int interval, int multi_count,
-			      int hub_device_addr, int hub_port)
+static struct cvmx_usb_pipe *cvmx_usb_open_pipe(struct cvmx_usb_state *usb,
+						int device_addr, int
+						endpoint_num,
+						enum cvmx_usb_speed
+							device_speed,
+						int max_packet,
+						enum cvmx_usb_transfer
+							transfer_type,
+						enum cvmx_usb_direction
+							transfer_dir,
+						int interval, int multi_count,
+						int hub_device_addr,
+						int hub_port)
 {
 	struct cvmx_usb_pipe *pipe;
 
 	if (unlikely((device_addr < 0) || (device_addr > MAX_USB_ADDRESS)))
-		return -EINVAL;
+		return NULL;
 	if (unlikely((endpoint_num < 0) || (endpoint_num > MAX_USB_ENDPOINT)))
-		return -EINVAL;
+		return NULL;
 	if (unlikely(device_speed > CVMX_USB_SPEED_LOW))
-		return -EINVAL;
+		return NULL;
 	if (unlikely((max_packet <= 0) || (max_packet > 1024)))
-		return -EINVAL;
+		return NULL;
 	if (unlikely(transfer_type > CVMX_USB_TRANSFER_INTERRUPT))
-		return -EINVAL;
+		return NULL;
 	if (unlikely((transfer_dir != CVMX_USB_DIRECTION_OUT) &&
 		(transfer_dir != CVMX_USB_DIRECTION_IN)))
-		return -EINVAL;
+		return NULL;
 	if (unlikely(interval < 0))
-		return -EINVAL;
+		return NULL;
 	if (unlikely((transfer_type == CVMX_USB_TRANSFER_CONTROL) && interval))
-		return -EINVAL;
+		return NULL;
 	if (unlikely(multi_count < 0))
-		return -EINVAL;
+		return NULL;
 	if (unlikely((device_speed != CVMX_USB_SPEED_HIGH) &&
 		(multi_count != 0)))
-		return -EINVAL;
+		return NULL;
 	if (unlikely((hub_device_addr < 0) || (hub_device_addr > MAX_USB_ADDRESS)))
-		return -EINVAL;
+		return NULL;
 	if (unlikely((hub_port < 0) || (hub_port > MAX_USB_HUB_PORT)))
-		return -EINVAL;
+		return NULL;
 
 	/* Find a free pipe */
 	pipe = usb->free_pipes.head;
 	if (!pipe)
-		return -ENOMEM;
+		return NULL;
 	__cvmx_usb_remove_pipe(&usb->free_pipes, pipe);
 	pipe->flags = __CVMX_USB_PIPE_FLAGS_OPEN;
 	if ((device_speed == CVMX_USB_SPEED_HIGH) &&
@@ -1415,7 +1404,7 @@ static int cvmx_usb_open_pipe(struct cvmx_usb_state *usb,
 	 * it doesn't have any submitted requests
 	 */
 
-	return __cvmx_usb_get_pipe_handle(usb, pipe);
+	return pipe;
 }
 
 
@@ -2141,7 +2130,7 @@ static inline struct usb_hcd *octeon_to_hcd(struct octeon_hcd *p)
 
 static void octeon_usb_urb_complete_callback(struct cvmx_usb_state *usb,
 					     enum cvmx_usb_complete status,
-					     int pipe_handle,
+					     struct cvmx_usb_pipe *pipe,
 					     int submit_handle,
 					     int bytes_transferred,
 					     struct urb *urb)
@@ -2183,9 +2172,9 @@ static void octeon_usb_urb_complete_callback(struct cvmx_usb_state *usb,
 				urb->iso_frame_desc[i].actual_length = iso_packet[i].length;
 				urb->actual_length += urb->iso_frame_desc[i].actual_length;
 			} else {
-				dev_dbg(dev, "ISOCHRONOUS packet=%d of %d status=%d pipe=%d submit=%d size=%d\n",
+				dev_dbg(dev, "ISOCHRONOUS packet=%d of %d status=%d pipe=%p submit=%d size=%d\n",
 					i, urb->number_of_packets,
-					iso_packet[i].status, pipe_handle,
+					iso_packet[i].status, pipe,
 					submit_handle, iso_packet[i].length);
 				urb->iso_frame_desc[i].status = -EREMOTEIO;
 			}
@@ -2204,26 +2193,26 @@ static void octeon_usb_urb_complete_callback(struct cvmx_usb_state *usb,
 			urb->status = -ENOENT;
 		break;
 	case CVMX_USB_COMPLETE_STALL:
-		dev_dbg(dev, "status=stall pipe=%d submit=%d size=%d\n",
-			pipe_handle, submit_handle, bytes_transferred);
+		dev_dbg(dev, "status=stall pipe=%p submit=%d size=%d\n",
+			pipe, submit_handle, bytes_transferred);
 		urb->status = -EPIPE;
 		break;
 	case CVMX_USB_COMPLETE_BABBLEERR:
-		dev_dbg(dev, "status=babble pipe=%d submit=%d size=%d\n",
-			pipe_handle, submit_handle, bytes_transferred);
+		dev_dbg(dev, "status=babble pipe=%p submit=%d size=%d\n",
+			pipe, submit_handle, bytes_transferred);
 		urb->status = -EPIPE;
 		break;
 	case CVMX_USB_COMPLETE_SHORT:
-		dev_dbg(dev, "status=short pipe=%d submit=%d size=%d\n",
-			pipe_handle, submit_handle, bytes_transferred);
+		dev_dbg(dev, "status=short pipe=%p submit=%d size=%d\n",
+			pipe, submit_handle, bytes_transferred);
 		urb->status = -EREMOTEIO;
 		break;
 	case CVMX_USB_COMPLETE_ERROR:
 	case CVMX_USB_COMPLETE_XACTERR:
 	case CVMX_USB_COMPLETE_DATATGLERR:
 	case CVMX_USB_COMPLETE_FRAMEERR:
-		dev_dbg(dev, "status=%d pipe=%d submit=%d size=%d\n",
-			status, pipe_handle, submit_handle, bytes_transferred);
+		dev_dbg(dev, "status=%d pipe=%p submit=%d size=%d\n",
+			status, pipe, submit_handle, bytes_transferred);
 		urb->status = -EPROTO;
 		break;
 	}
@@ -2248,7 +2237,6 @@ static void __cvmx_usb_perform_complete(struct cvmx_usb_state *usb,
 					struct cvmx_usb_transaction *transaction,
 					enum cvmx_usb_complete complete_code)
 {
-	int pipe_handle;
 	int submit_handle;
 
 	/* If this was a split then clear our split in progress marker */
@@ -2294,9 +2282,8 @@ static void __cvmx_usb_perform_complete(struct cvmx_usb_state *usb,
 		__cvmx_usb_append_pipe(&usb->idle_pipes, pipe);
 
 	}
-	pipe_handle = __cvmx_usb_get_pipe_handle(usb, pipe);
 	submit_handle = __cvmx_usb_get_submit_handle(usb, transaction);
-	octeon_usb_urb_complete_callback(usb, complete_code, pipe_handle,
+	octeon_usb_urb_complete_callback(usb, complete_code, pipe,
 					 submit_handle,
 					 transaction->actual_bytes,
 					 transaction->urb);
@@ -2311,8 +2298,7 @@ done:
  * of transactions.
  *
  * @usb:
- * @pipe_handle:
- *		    Which pipe to submit to. Will be validated in this function.
+ * @pipe:	    Which pipe to submit to.
  * @type:	    Transaction type
  * @buffer:	    User buffer for the transaction
  * @buffer_length:
@@ -2331,7 +2317,7 @@ done:
  *	    in the external API.
  */
 static int __cvmx_usb_submit_transaction(struct cvmx_usb_state *usb,
-					 int pipe_handle,
+					 struct cvmx_usb_pipe *pipe,
 					 enum cvmx_usb_transfer type,
 					 uint64_t buffer,
 					 int buffer_length,
@@ -2343,10 +2329,7 @@ static int __cvmx_usb_submit_transaction(struct cvmx_usb_state *usb,
 {
 	int submit_handle;
 	struct cvmx_usb_transaction *transaction;
-	struct cvmx_usb_pipe *pipe = usb->pipe + pipe_handle;
 
-	if (unlikely((pipe_handle < 0) || (pipe_handle >= MAX_PIPES)))
-		return -EINVAL;
 	/* Fail if the pipe isn't open */
 	if (unlikely((pipe->flags & __CVMX_USB_PIPE_FLAGS_OPEN) == 0))
 		return -EINVAL;
@@ -2400,19 +2383,19 @@ static int __cvmx_usb_submit_transaction(struct cvmx_usb_state *usb,
  * Call to submit a USB Bulk transfer to a pipe.
  *
  * @usb:	    USB device state populated by cvmx_usb_initialize().
- * @pipe_handle:
- *		    Handle to the pipe for the transfer.
+ * @pipe:	    Handle to the pipe for the transfer.
  * @urb:	    URB.
  *
  * Returns: A submitted transaction handle or negative on
  *	    failure. Negative values are error codes.
  */
-static int cvmx_usb_submit_bulk(struct cvmx_usb_state *usb, int pipe_handle,
+static int cvmx_usb_submit_bulk(struct cvmx_usb_state *usb,
+				struct cvmx_usb_pipe *pipe,
 				struct urb *urb)
 {
 	int submit_handle;
 
-	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
+	submit_handle = __cvmx_usb_submit_transaction(usb, pipe,
 						      CVMX_USB_TRANSFER_BULK,
 						      urb->transfer_dma,
 						      urb->transfer_buffer_length,
@@ -2429,19 +2412,19 @@ static int cvmx_usb_submit_bulk(struct cvmx_usb_state *usb, int pipe_handle,
  * Call to submit a USB Interrupt transfer to a pipe.
  *
  * @usb:	    USB device state populated by cvmx_usb_initialize().
- * @pipe_handle:
- *		    Handle to the pipe for the transfer.
+ * @pipe:	    Handle to the pipe for the transfer.
  * @urb:	    URB returned when the callback is called.
  *
  * Returns: A submitted transaction handle or negative on
  *	    failure. Negative values are error codes.
  */
 static int cvmx_usb_submit_interrupt(struct cvmx_usb_state *usb,
-				     int pipe_handle, struct urb *urb)
+				     struct cvmx_usb_pipe *pipe,
+				     struct urb *urb)
 {
 	int submit_handle;
 
-	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
+	submit_handle = __cvmx_usb_submit_transaction(usb, pipe,
 						      CVMX_USB_TRANSFER_INTERRUPT,
 						      urb->transfer_dma,
 						      urb->transfer_buffer_length,
@@ -2458,14 +2441,14 @@ static int cvmx_usb_submit_interrupt(struct cvmx_usb_state *usb,
  * Call to submit a USB Control transfer to a pipe.
  *
  * @usb:	    USB device state populated by cvmx_usb_initialize().
- * @pipe_handle:
- *		    Handle to the pipe for the transfer.
+ * @pipe:	    Handle to the pipe for the transfer.
  * @urb:	    URB.
  *
  * Returns: A submitted transaction handle or negative on
  *	    failure. Negative values are error codes.
  */
-static int cvmx_usb_submit_control(struct cvmx_usb_state *usb, int pipe_handle,
+static int cvmx_usb_submit_control(struct cvmx_usb_state *usb,
+				   struct cvmx_usb_pipe *pipe,
 				   struct urb *urb)
 {
 	int submit_handle;
@@ -2474,11 +2457,10 @@ static int cvmx_usb_submit_control(struct cvmx_usb_state *usb, int pipe_handle,
 	union cvmx_usb_control_header *header =
 		cvmx_phys_to_ptr(control_header);
 
-	/* Pipe handle checking is done later in a common place */
 	if ((header->s.request_type & 0x80) == 0)
 		buffer_length = le16_to_cpu(header->s.length);
 
-	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
+	submit_handle = __cvmx_usb_submit_transaction(usb, pipe,
 						      CVMX_USB_TRANSFER_CONTROL,
 						      urb->transfer_dma,
 						      buffer_length,
@@ -2495,21 +2477,21 @@ static int cvmx_usb_submit_control(struct cvmx_usb_state *usb, int pipe_handle,
  * Call to submit a USB Isochronous transfer to a pipe.
  *
  * @usb:	    USB device state populated by cvmx_usb_initialize().
- * @pipe_handle:
- *		    Handle to the pipe for the transfer.
+ * @pipe:	    Handle to the pipe for the transfer.
  * @urb:	    URB returned when the callback is called.
  *
  * Returns: A submitted transaction handle or negative on
  *	    failure. Negative values are error codes.
  */
 static int cvmx_usb_submit_isochronous(struct cvmx_usb_state *usb,
-				       int pipe_handle, struct urb *urb)
+				       struct cvmx_usb_pipe *pipe,
+				       struct urb *urb)
 {
 	int submit_handle;
 	struct cvmx_usb_iso_packet *packets;
 
 	packets = (struct cvmx_usb_iso_packet *) urb->setup_packet;
-	submit_handle = __cvmx_usb_submit_transaction(usb, pipe_handle,
+	submit_handle = __cvmx_usb_submit_transaction(usb, pipe,
 						      CVMX_USB_TRANSFER_ISOCHRONOUS,
 						      urb->transfer_dma,
 						      urb->transfer_buffer_length,
@@ -2530,22 +2512,19 @@ static int cvmx_usb_submit_isochronous(struct cvmx_usb_state *usb,
  * associated callback.
  *
  * @usb:	 USB device state populated by cvmx_usb_initialize().
- * @pipe_handle:
- *		 Pipe handle to cancel requests in.
+ * @pipe:	 Pipe to cancel requests in.
  * @submit_handle:
  *		 Handle to transaction to cancel, returned by the submit
  *		 function.
  *
  * Returns: 0 or a negative error code.
  */
-static int cvmx_usb_cancel(struct cvmx_usb_state *usb, int pipe_handle,
+static int cvmx_usb_cancel(struct cvmx_usb_state *usb,
+			   struct cvmx_usb_pipe *pipe,
 			   int submit_handle)
 {
 	struct cvmx_usb_transaction *transaction;
-	struct cvmx_usb_pipe *pipe = usb->pipe + pipe_handle;
 
-	if (unlikely((pipe_handle < 0) || (pipe_handle >= MAX_PIPES)))
-		return -EINVAL;
 	if (unlikely((submit_handle < 0) || (submit_handle >= MAX_TRANSACTIONS)))
 		return -EINVAL;
 
@@ -2592,25 +2571,20 @@ static int cvmx_usb_cancel(struct cvmx_usb_state *usb, int pipe_handle,
  * does is call cvmx_usb_cancel() in a loop.
  *
  * @usb:	 USB device state populated by cvmx_usb_initialize().
- * @pipe_handle:
- *		 Pipe handle to cancel requests in.
+ * @pipe:	 Pipe to cancel requests in.
  *
  * Returns: 0 or a negative error code.
  */
-static int cvmx_usb_cancel_all(struct cvmx_usb_state *usb, int pipe_handle)
+static int cvmx_usb_cancel_all(struct cvmx_usb_state *usb,
+			       struct cvmx_usb_pipe *pipe)
 {
-	struct cvmx_usb_pipe *pipe = usb->pipe + pipe_handle;
-
-	if (unlikely((pipe_handle < 0) || (pipe_handle >= MAX_PIPES)))
-		return -EINVAL;
-
 	/* Fail if the pipe isn't open */
 	if (unlikely((pipe->flags & __CVMX_USB_PIPE_FLAGS_OPEN) == 0))
 		return -EINVAL;
 
 	/* Simply loop through and attempt to cancel each transaction */
 	while (pipe->head) {
-		int result = cvmx_usb_cancel(usb, pipe_handle,
+		int result = cvmx_usb_cancel(usb, pipe,
 			__cvmx_usb_get_submit_handle(usb, pipe->head));
 		if (unlikely(result != 0))
 			return result;
@@ -2623,19 +2597,14 @@ static int cvmx_usb_cancel_all(struct cvmx_usb_state *usb, int pipe_handle)
  * Close a pipe created with cvmx_usb_open_pipe().
  *
  * @usb:	 USB device state populated by cvmx_usb_initialize().
- * @pipe_handle:
- *		 Pipe handle to close.
+ * @pipe:	 Pipe to close.
  *
  * Returns: 0 or a negative error code. EBUSY is returned if the pipe has
  *	    outstanding transfers.
  */
-static int cvmx_usb_close_pipe(struct cvmx_usb_state *usb, int pipe_handle)
+static int cvmx_usb_close_pipe(struct cvmx_usb_state *usb,
+			       struct cvmx_usb_pipe *pipe)
 {
-	struct cvmx_usb_pipe *pipe = usb->pipe + pipe_handle;
-
-	if (unlikely((pipe_handle < 0) || (pipe_handle >= MAX_PIPES)))
-		return -EINVAL;
-
 	/* Fail if the pipe isn't open */
 	if (unlikely((pipe->flags & __CVMX_USB_PIPE_FLAGS_OPEN) == 0))
 		return -EINVAL;
@@ -3263,7 +3232,7 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 	struct octeon_hcd *priv = hcd_to_octeon(hcd);
 	struct device *dev = hcd->self.controller;
 	int submit_handle = -1;
-	int pipe_handle;
+	struct cvmx_usb_pipe *pipe;
 	unsigned long flags;
 	struct cvmx_usb_iso_packet *iso_packet;
 	struct usb_host_endpoint *ep = urb->ep;
@@ -3332,25 +3301,24 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 				dev = dev->parent;
 			}
 		}
-		pipe_handle = cvmx_usb_open_pipe(&priv->usb,
-						 usb_pipedevice(urb->pipe),
-						 usb_pipeendpoint(urb->pipe),
-						 speed,
-						 le16_to_cpu(ep->desc.wMaxPacketSize) & 0x7ff,
-						 transfer_type,
-						 usb_pipein(urb->pipe) ? CVMX_USB_DIRECTION_IN : CVMX_USB_DIRECTION_OUT,
-						 urb->interval,
-						 (le16_to_cpu(ep->desc.wMaxPacketSize) >> 11) & 0x3,
-						 split_device,
-						 split_port);
-		if (pipe_handle < 0) {
+		pipe = cvmx_usb_open_pipe(&priv->usb, usb_pipedevice(urb->pipe),
+					  usb_pipeendpoint(urb->pipe), speed,
+					  le16_to_cpu(ep->desc.wMaxPacketSize) & 0x7ff,
+					  transfer_type,
+					  usb_pipein(urb->pipe) ?
+						CVMX_USB_DIRECTION_IN :
+						CVMX_USB_DIRECTION_OUT,
+					  urb->interval,
+					  (le16_to_cpu(ep->desc.wMaxPacketSize) >> 11) & 0x3,
+					  split_device, split_port);
+		if (!pipe) {
 			spin_unlock_irqrestore(&priv->lock, flags);
 			dev_dbg(dev, "Failed to create pipe\n");
 			return -ENOMEM;
 		}
-		ep->hcpriv = (void *)(long)pipe_handle;
+		ep->hcpriv = pipe;
 	} else {
-		pipe_handle = (long)ep->hcpriv;
+		pipe = ep->hcpriv;
 	}
 
 	switch (usb_pipetype(urb->pipe)) {
@@ -3379,8 +3347,7 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 			 */
 			urb->setup_packet = (char *)iso_packet;
 			submit_handle = cvmx_usb_submit_isochronous(&priv->usb,
-								    pipe_handle,
-								    urb);
+								    pipe, urb);
 			/*
 			 * If submit failed we need to free our private packet
 			 * list.
@@ -3394,20 +3361,18 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 	case PIPE_INTERRUPT:
 		dev_dbg(dev, "Submit interrupt to %d.%d\n",
 			usb_pipedevice(urb->pipe), usb_pipeendpoint(urb->pipe));
-		submit_handle = cvmx_usb_submit_interrupt(&priv->usb,
-							  pipe_handle, urb);
+		submit_handle = cvmx_usb_submit_interrupt(&priv->usb, pipe,
+							  urb);
 		break;
 	case PIPE_CONTROL:
 		dev_dbg(dev, "Submit control to %d.%d\n",
 			usb_pipedevice(urb->pipe), usb_pipeendpoint(urb->pipe));
-		submit_handle = cvmx_usb_submit_control(&priv->usb, pipe_handle,
-							urb);
+		submit_handle = cvmx_usb_submit_control(&priv->usb, pipe, urb);
 		break;
 	case PIPE_BULK:
 		dev_dbg(dev, "Submit bulk to %d.%d\n",
 			usb_pipedevice(urb->pipe), usb_pipeendpoint(urb->pipe));
-		submit_handle = cvmx_usb_submit_bulk(&priv->usb, pipe_handle,
-						     urb);
+		submit_handle = cvmx_usb_submit_bulk(&priv->usb, pipe, urb);
 		break;
 	}
 	if (submit_handle < 0) {
@@ -3428,15 +3393,13 @@ static void octeon_usb_urb_dequeue_work(unsigned long arg)
 	spin_lock_irqsave(&priv->lock, flags);
 
 	while (!list_empty(&priv->dequeue_list)) {
-		int pipe_handle;
 		int submit_handle;
 		struct urb *urb = container_of(priv->dequeue_list.next, struct urb, urb_list);
 		list_del(&urb->urb_list);
 		/* not enqueued on dequeue_list */
 		INIT_LIST_HEAD(&urb->urb_list);
-		pipe_handle = (long)urb->ep->hcpriv;
 		submit_handle = (long)urb->hcpriv;
-		cvmx_usb_cancel(&priv->usb, pipe_handle, submit_handle);
+		cvmx_usb_cancel(&priv->usb, urb->ep->hcpriv, submit_handle);
 	}
 
 	spin_unlock_irqrestore(&priv->lock, flags);
@@ -3468,12 +3431,12 @@ static void octeon_usb_endpoint_disable(struct usb_hcd *hcd, struct usb_host_end
 
 	if (ep->hcpriv) {
 		struct octeon_hcd *priv = hcd_to_octeon(hcd);
-		int pipe_handle = (long)ep->hcpriv;
+		struct cvmx_usb_pipe *pipe = ep->hcpriv;
 		unsigned long flags;
 		spin_lock_irqsave(&priv->lock, flags);
-		cvmx_usb_cancel_all(&priv->usb, pipe_handle);
-		if (cvmx_usb_close_pipe(&priv->usb, pipe_handle))
-			dev_dbg(dev, "Closing pipe %d failed\n", pipe_handle);
+		cvmx_usb_cancel_all(&priv->usb, pipe);
+		if (cvmx_usb_close_pipe(&priv->usb, pipe))
+			dev_dbg(dev, "Closing pipe %p failed\n", pipe);
 		spin_unlock_irqrestore(&priv->lock, flags);
 		ep->hcpriv = NULL;
 	}
-- 
cgit 


From 3e1674c0937143d0818c81fc37e9499edf1d6f66 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Sun, 6 Oct 2013 22:22:36 +0300
Subject: staging: octeon-usb: eliminate submit_handle

Eliminate submit_handle, use a direct reference instead.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/octeon-hcd.c | 232 +++++++++++++-------------------
 1 file changed, 90 insertions(+), 142 deletions(-)

diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index b07425c890ac..368c7f78e8cb 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -1251,22 +1251,6 @@ static struct cvmx_usb_port_status cvmx_usb_get_status(struct cvmx_usb_state *us
 	return result;
 }
 
-/**
- * Convert a USB transaction into a handle
- *
- * @usb:	 USB device state populated by cvmx_usb_initialize().
- * @transaction:
- *		 Transaction to get handle for
- *
- * Returns: Handle
- */
-static inline int __cvmx_usb_get_submit_handle(struct cvmx_usb_state *usb,
-					       struct cvmx_usb_transaction *transaction)
-{
-	return ((unsigned long)transaction - (unsigned long)usb->transaction) /
-			sizeof(*transaction);
-}
-
 /**
  * Open a virtual pipe between the host and a USB device. A pipe
  * must be opened before data can be transferred between a device
@@ -2131,7 +2115,8 @@ static inline struct usb_hcd *octeon_to_hcd(struct octeon_hcd *p)
 static void octeon_usb_urb_complete_callback(struct cvmx_usb_state *usb,
 					     enum cvmx_usb_complete status,
 					     struct cvmx_usb_pipe *pipe,
-					     int submit_handle,
+					     struct cvmx_usb_transaction
+						*transaction,
 					     int bytes_transferred,
 					     struct urb *urb)
 {
@@ -2172,10 +2157,10 @@ static void octeon_usb_urb_complete_callback(struct cvmx_usb_state *usb,
 				urb->iso_frame_desc[i].actual_length = iso_packet[i].length;
 				urb->actual_length += urb->iso_frame_desc[i].actual_length;
 			} else {
-				dev_dbg(dev, "ISOCHRONOUS packet=%d of %d status=%d pipe=%p submit=%d size=%d\n",
+				dev_dbg(dev, "ISOCHRONOUS packet=%d of %d status=%d pipe=%p transaction=%p size=%d\n",
 					i, urb->number_of_packets,
 					iso_packet[i].status, pipe,
-					submit_handle, iso_packet[i].length);
+					transaction, iso_packet[i].length);
 				urb->iso_frame_desc[i].status = -EREMOTEIO;
 			}
 		}
@@ -2193,26 +2178,26 @@ static void octeon_usb_urb_complete_callback(struct cvmx_usb_state *usb,
 			urb->status = -ENOENT;
 		break;
 	case CVMX_USB_COMPLETE_STALL:
-		dev_dbg(dev, "status=stall pipe=%p submit=%d size=%d\n",
-			pipe, submit_handle, bytes_transferred);
+		dev_dbg(dev, "status=stall pipe=%p transaction=%p size=%d\n",
+			pipe, transaction, bytes_transferred);
 		urb->status = -EPIPE;
 		break;
 	case CVMX_USB_COMPLETE_BABBLEERR:
-		dev_dbg(dev, "status=babble pipe=%p submit=%d size=%d\n",
-			pipe, submit_handle, bytes_transferred);
+		dev_dbg(dev, "status=babble pipe=%p transaction=%p size=%d\n",
+			pipe, transaction, bytes_transferred);
 		urb->status = -EPIPE;
 		break;
 	case CVMX_USB_COMPLETE_SHORT:
-		dev_dbg(dev, "status=short pipe=%p submit=%d size=%d\n",
-			pipe, submit_handle, bytes_transferred);
+		dev_dbg(dev, "status=short pipe=%p transaction=%p size=%d\n",
+			pipe, transaction, bytes_transferred);
 		urb->status = -EREMOTEIO;
 		break;
 	case CVMX_USB_COMPLETE_ERROR:
 	case CVMX_USB_COMPLETE_XACTERR:
 	case CVMX_USB_COMPLETE_DATATGLERR:
 	case CVMX_USB_COMPLETE_FRAMEERR:
-		dev_dbg(dev, "status=%d pipe=%p submit=%d size=%d\n",
-			status, pipe, submit_handle, bytes_transferred);
+		dev_dbg(dev, "status=%d pipe=%p transaction=%p size=%d\n",
+			status, pipe, transaction, bytes_transferred);
 		urb->status = -EPROTO;
 		break;
 	}
@@ -2237,8 +2222,6 @@ static void __cvmx_usb_perform_complete(struct cvmx_usb_state *usb,
 					struct cvmx_usb_transaction *transaction,
 					enum cvmx_usb_complete complete_code)
 {
-	int submit_handle;
-
 	/* If this was a split then clear our split in progress marker */
 	if (usb->active_split == transaction)
 		usb->active_split = NULL;
@@ -2282,9 +2265,8 @@ static void __cvmx_usb_perform_complete(struct cvmx_usb_state *usb,
 		__cvmx_usb_append_pipe(&usb->idle_pipes, pipe);
 
 	}
-	submit_handle = __cvmx_usb_get_submit_handle(usb, transaction);
 	octeon_usb_urb_complete_callback(usb, complete_code, pipe,
-					 submit_handle,
+					 transaction,
 					 transaction->actual_bytes,
 					 transaction->urb);
 	__cvmx_usb_free_transaction(usb, transaction);
@@ -2313,32 +2295,30 @@ done:
  *		    A description of each ISO packet
  * @urb:	    URB for the callback
  *
- * Returns: Submit handle or negative on failure. Matches the result
- *	    in the external API.
+ * Returns: Transaction or NULL on failure.
  */
-static int __cvmx_usb_submit_transaction(struct cvmx_usb_state *usb,
-					 struct cvmx_usb_pipe *pipe,
-					 enum cvmx_usb_transfer type,
-					 uint64_t buffer,
-					 int buffer_length,
-					 uint64_t control_header,
-					 int iso_start_frame,
-					 int iso_number_packets,
-					 struct cvmx_usb_iso_packet *iso_packets,
-					 struct urb *urb)
+static struct cvmx_usb_transaction *__cvmx_usb_submit_transaction(struct cvmx_usb_state *usb,
+								  struct cvmx_usb_pipe *pipe,
+								  enum cvmx_usb_transfer type,
+								  uint64_t buffer,
+								  int buffer_length,
+								  uint64_t control_header,
+								  int iso_start_frame,
+								  int iso_number_packets,
+								  struct cvmx_usb_iso_packet *iso_packets,
+								  struct urb *urb)
 {
-	int submit_handle;
 	struct cvmx_usb_transaction *transaction;
 
 	/* Fail if the pipe isn't open */
 	if (unlikely((pipe->flags & __CVMX_USB_PIPE_FLAGS_OPEN) == 0))
-		return -EINVAL;
+		return NULL;
 	if (unlikely(pipe->transfer_type != type))
-		return -EINVAL;
+		return NULL;
 
 	transaction = __cvmx_usb_alloc_transaction(usb);
 	if (unlikely(!transaction))
-		return -ENOMEM;
+		return NULL;
 
 	transaction->type = type;
 	transaction->buffer = buffer;
@@ -2369,13 +2349,11 @@ static int __cvmx_usb_submit_transaction(struct cvmx_usb_state *usb,
 	}
 	pipe->tail = transaction;
 
-	submit_handle = __cvmx_usb_get_submit_handle(usb, transaction);
-
 	/* We may need to schedule the pipe if this was the head of the pipe */
 	if (!transaction->prev)
 		__cvmx_usb_schedule(usb, 0);
 
-	return submit_handle;
+	return transaction;
 }
 
 
@@ -2386,25 +2364,20 @@ static int __cvmx_usb_submit_transaction(struct cvmx_usb_state *usb,
  * @pipe:	    Handle to the pipe for the transfer.
  * @urb:	    URB.
  *
- * Returns: A submitted transaction handle or negative on
- *	    failure. Negative values are error codes.
+ * Returns: A submitted transaction or NULL on failure.
  */
-static int cvmx_usb_submit_bulk(struct cvmx_usb_state *usb,
-				struct cvmx_usb_pipe *pipe,
-				struct urb *urb)
+static struct cvmx_usb_transaction *cvmx_usb_submit_bulk(struct cvmx_usb_state *usb,
+							 struct cvmx_usb_pipe *pipe,
+							 struct urb *urb)
 {
-	int submit_handle;
-
-	submit_handle = __cvmx_usb_submit_transaction(usb, pipe,
-						      CVMX_USB_TRANSFER_BULK,
-						      urb->transfer_dma,
-						      urb->transfer_buffer_length,
-						      0, /* control_header */
-						      0, /* iso_start_frame */
-						      0, /* iso_number_packets */
-						      NULL, /* iso_packets */
-						      urb);
-	return submit_handle;
+	return __cvmx_usb_submit_transaction(usb, pipe, CVMX_USB_TRANSFER_BULK,
+					     urb->transfer_dma,
+					     urb->transfer_buffer_length,
+					     0, /* control_header */
+					     0, /* iso_start_frame */
+					     0, /* iso_number_packets */
+					     NULL, /* iso_packets */
+					     urb);
 }
 
 
@@ -2415,25 +2388,21 @@ static int cvmx_usb_submit_bulk(struct cvmx_usb_state *usb,
  * @pipe:	    Handle to the pipe for the transfer.
  * @urb:	    URB returned when the callback is called.
  *
- * Returns: A submitted transaction handle or negative on
- *	    failure. Negative values are error codes.
+ * Returns: A submitted transaction or NULL on failure.
  */
-static int cvmx_usb_submit_interrupt(struct cvmx_usb_state *usb,
-				     struct cvmx_usb_pipe *pipe,
-				     struct urb *urb)
+static struct cvmx_usb_transaction *cvmx_usb_submit_interrupt(struct cvmx_usb_state *usb,
+							      struct cvmx_usb_pipe *pipe,
+							      struct urb *urb)
 {
-	int submit_handle;
-
-	submit_handle = __cvmx_usb_submit_transaction(usb, pipe,
-						      CVMX_USB_TRANSFER_INTERRUPT,
-						      urb->transfer_dma,
-						      urb->transfer_buffer_length,
-						      0, /* control_header */
-						      0, /* iso_start_frame */
-						      0, /* iso_number_packets */
-						      NULL, /* iso_packets */
-						      urb);
-	return submit_handle;
+	return __cvmx_usb_submit_transaction(usb, pipe,
+					     CVMX_USB_TRANSFER_INTERRUPT,
+					     urb->transfer_dma,
+					     urb->transfer_buffer_length,
+					     0, /* control_header */
+					     0, /* iso_start_frame */
+					     0, /* iso_number_packets */
+					     NULL, /* iso_packets */
+					     urb);
 }
 
 
@@ -2444,14 +2413,12 @@ static int cvmx_usb_submit_interrupt(struct cvmx_usb_state *usb,
  * @pipe:	    Handle to the pipe for the transfer.
  * @urb:	    URB.
  *
- * Returns: A submitted transaction handle or negative on
- *	    failure. Negative values are error codes.
+ * Returns: A submitted transaction or NULL on failure.
  */
-static int cvmx_usb_submit_control(struct cvmx_usb_state *usb,
-				   struct cvmx_usb_pipe *pipe,
-				   struct urb *urb)
+static struct cvmx_usb_transaction *cvmx_usb_submit_control(struct cvmx_usb_state *usb,
+							    struct cvmx_usb_pipe *pipe,
+							    struct urb *urb)
 {
-	int submit_handle;
 	int buffer_length = urb->transfer_buffer_length;
 	uint64_t control_header = urb->setup_dma;
 	union cvmx_usb_control_header *header =
@@ -2460,16 +2427,14 @@ static int cvmx_usb_submit_control(struct cvmx_usb_state *usb,
 	if ((header->s.request_type & 0x80) == 0)
 		buffer_length = le16_to_cpu(header->s.length);
 
-	submit_handle = __cvmx_usb_submit_transaction(usb, pipe,
-						      CVMX_USB_TRANSFER_CONTROL,
-						      urb->transfer_dma,
-						      buffer_length,
-						      control_header,
-						      0, /* iso_start_frame */
-						      0, /* iso_number_packets */
-						      NULL, /* iso_packets */
-						      urb);
-	return submit_handle;
+	return __cvmx_usb_submit_transaction(usb, pipe,
+					     CVMX_USB_TRANSFER_CONTROL,
+					     urb->transfer_dma, buffer_length,
+					     control_header,
+					     0, /* iso_start_frame */
+					     0, /* iso_number_packets */
+					     NULL, /* iso_packets */
+					     urb);
 }
 
 
@@ -2480,27 +2445,23 @@ static int cvmx_usb_submit_control(struct cvmx_usb_state *usb,
  * @pipe:	    Handle to the pipe for the transfer.
  * @urb:	    URB returned when the callback is called.
  *
- * Returns: A submitted transaction handle or negative on
- *	    failure. Negative values are error codes.
+ * Returns: A submitted transaction or NULL on failure.
  */
-static int cvmx_usb_submit_isochronous(struct cvmx_usb_state *usb,
-				       struct cvmx_usb_pipe *pipe,
-				       struct urb *urb)
+static struct cvmx_usb_transaction *cvmx_usb_submit_isochronous(struct cvmx_usb_state *usb,
+								struct cvmx_usb_pipe *pipe,
+								struct urb *urb)
 {
-	int submit_handle;
 	struct cvmx_usb_iso_packet *packets;
 
 	packets = (struct cvmx_usb_iso_packet *) urb->setup_packet;
-	submit_handle = __cvmx_usb_submit_transaction(usb, pipe,
-						      CVMX_USB_TRANSFER_ISOCHRONOUS,
-						      urb->transfer_dma,
-						      urb->transfer_buffer_length,
-						      0, /* control_header */
-						      urb->start_frame,
-						      urb->number_of_packets,
-						      packets,
-						      urb);
-	return submit_handle;
+	return __cvmx_usb_submit_transaction(usb, pipe,
+					     CVMX_USB_TRANSFER_ISOCHRONOUS,
+					     urb->transfer_dma,
+					     urb->transfer_buffer_length,
+					     0, /* control_header */
+					     urb->start_frame,
+					     urb->number_of_packets,
+					     packets, urb);
 }
 
 
@@ -2513,27 +2474,18 @@ static int cvmx_usb_submit_isochronous(struct cvmx_usb_state *usb,
  *
  * @usb:	 USB device state populated by cvmx_usb_initialize().
  * @pipe:	 Pipe to cancel requests in.
- * @submit_handle:
- *		 Handle to transaction to cancel, returned by the submit
- *		 function.
+ * @transaction: Transaction to cancel, returned by the submit function.
  *
  * Returns: 0 or a negative error code.
  */
 static int cvmx_usb_cancel(struct cvmx_usb_state *usb,
 			   struct cvmx_usb_pipe *pipe,
-			   int submit_handle)
+			   struct cvmx_usb_transaction *transaction)
 {
-	struct cvmx_usb_transaction *transaction;
-
-	if (unlikely((submit_handle < 0) || (submit_handle >= MAX_TRANSACTIONS)))
-		return -EINVAL;
-
 	/* Fail if the pipe isn't open */
 	if (unlikely((pipe->flags & __CVMX_USB_PIPE_FLAGS_OPEN) == 0))
 		return -EINVAL;
 
-	transaction = usb->transaction + submit_handle;
-
 	/* Fail if this transaction already completed */
 	if (unlikely((transaction->flags & __CVMX_USB_TRANSACTION_FLAGS_IN_USE) == 0))
 		return -EINVAL;
@@ -2584,8 +2536,7 @@ static int cvmx_usb_cancel_all(struct cvmx_usb_state *usb,
 
 	/* Simply loop through and attempt to cancel each transaction */
 	while (pipe->head) {
-		int result = cvmx_usb_cancel(usb, pipe,
-			__cvmx_usb_get_submit_handle(usb, pipe->head));
+		int result = cvmx_usb_cancel(usb, pipe, pipe->head);
 		if (unlikely(result != 0))
 			return result;
 	}
@@ -3231,7 +3182,7 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 {
 	struct octeon_hcd *priv = hcd_to_octeon(hcd);
 	struct device *dev = hcd->self.controller;
-	int submit_handle = -1;
+	struct cvmx_usb_transaction *transaction = NULL;
 	struct cvmx_usb_pipe *pipe;
 	unsigned long flags;
 	struct cvmx_usb_iso_packet *iso_packet;
@@ -3346,13 +3297,13 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 			 * this saves us a bunch of logic.
 			 */
 			urb->setup_packet = (char *)iso_packet;
-			submit_handle = cvmx_usb_submit_isochronous(&priv->usb,
-								    pipe, urb);
+			transaction = cvmx_usb_submit_isochronous(&priv->usb,
+								  pipe, urb);
 			/*
 			 * If submit failed we need to free our private packet
 			 * list.
 			 */
-			if (submit_handle < 0) {
+			if (!transaction) {
 				urb->setup_packet = NULL;
 				kfree(iso_packet);
 			}
@@ -3361,26 +3312,25 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 	case PIPE_INTERRUPT:
 		dev_dbg(dev, "Submit interrupt to %d.%d\n",
 			usb_pipedevice(urb->pipe), usb_pipeendpoint(urb->pipe));
-		submit_handle = cvmx_usb_submit_interrupt(&priv->usb, pipe,
-							  urb);
+		transaction = cvmx_usb_submit_interrupt(&priv->usb, pipe, urb);
 		break;
 	case PIPE_CONTROL:
 		dev_dbg(dev, "Submit control to %d.%d\n",
 			usb_pipedevice(urb->pipe), usb_pipeendpoint(urb->pipe));
-		submit_handle = cvmx_usb_submit_control(&priv->usb, pipe, urb);
+		transaction = cvmx_usb_submit_control(&priv->usb, pipe, urb);
 		break;
 	case PIPE_BULK:
 		dev_dbg(dev, "Submit bulk to %d.%d\n",
 			usb_pipedevice(urb->pipe), usb_pipeendpoint(urb->pipe));
-		submit_handle = cvmx_usb_submit_bulk(&priv->usb, pipe, urb);
+		transaction = cvmx_usb_submit_bulk(&priv->usb, pipe, urb);
 		break;
 	}
-	if (submit_handle < 0) {
+	if (!transaction) {
 		spin_unlock_irqrestore(&priv->lock, flags);
 		dev_dbg(dev, "Failed to submit\n");
 		return -ENOMEM;
 	}
-	urb->hcpriv = (void *)(long)submit_handle;
+	urb->hcpriv = transaction;
 	spin_unlock_irqrestore(&priv->lock, flags);
 	return 0;
 }
@@ -3393,13 +3343,11 @@ static void octeon_usb_urb_dequeue_work(unsigned long arg)
 	spin_lock_irqsave(&priv->lock, flags);
 
 	while (!list_empty(&priv->dequeue_list)) {
-		int submit_handle;
 		struct urb *urb = container_of(priv->dequeue_list.next, struct urb, urb_list);
 		list_del(&urb->urb_list);
 		/* not enqueued on dequeue_list */
 		INIT_LIST_HEAD(&urb->urb_list);
-		submit_handle = (long)urb->hcpriv;
-		cvmx_usb_cancel(&priv->usb, urb->ep->hcpriv, submit_handle);
+		cvmx_usb_cancel(&priv->usb, urb->ep->hcpriv, urb->hcpriv);
 	}
 
 	spin_unlock_irqrestore(&priv->lock, flags);
-- 
cgit 


From aa87afe20710dfa71937f945a93e2bfa26a2f1df Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Sun, 6 Oct 2013 22:22:37 +0300
Subject: staging: octeon-usb: refactor __cvmx_usb_pipe_needs_split

Split a long line and remove redundant parenthesis.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/octeon-hcd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 368c7f78e8cb..1859c050b918 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -602,7 +602,8 @@ static inline void __cvmx_usb_write_csr64(struct cvmx_usb_state *usb,
 static inline int __cvmx_usb_pipe_needs_split(struct cvmx_usb_state *usb,
 					      struct cvmx_usb_pipe *pipe)
 {
-	return ((pipe->device_speed != CVMX_USB_SPEED_HIGH) && (usb->usbcx_hprt.s.prtspd == CVMX_USB_SPEED_HIGH));
+	return pipe->device_speed != CVMX_USB_SPEED_HIGH &&
+	       usb->usbcx_hprt.s.prtspd == CVMX_USB_SPEED_HIGH;
 }
 
 
-- 
cgit 


From cd39f7374d343e6af22d7c929ec87c7406ebd00c Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Sun, 6 Oct 2013 23:35:15 +0300
Subject: staging: octeon-ethernet: allow to set IRQ smp_affinity freely

Currently the driver assumes that CPU 0 is handling all the hard IRQs.
This is wrong in Linux SMP systems where user is allowed to assign to
hardware IRQs to any CPU. The driver will stop working if user sets
smp_affinity so that interrupts end up being handled by other than CPU
0. The patch fixes that.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon/ethernet-rx.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c
index 8897d2d38578..0d539eb2be5b 100644
--- a/drivers/staging/octeon/ethernet-rx.c
+++ b/drivers/staging/octeon/ethernet-rx.c
@@ -80,6 +80,8 @@ struct cvm_oct_core_state {
 
 static struct cvm_oct_core_state core_state __cacheline_aligned_in_smp;
 
+static int cvm_irq_cpu;
+
 static void cvm_oct_enable_napi(void *_)
 {
 	int cpu = smp_processor_id();
@@ -112,11 +114,7 @@ static void cvm_oct_no_more_work(void)
 {
 	int cpu = smp_processor_id();
 
-	/*
-	 * CPU zero is special.  It always has the irq enabled when
-	 * waiting for incoming packets.
-	 */
-	if (cpu == 0) {
+	if (cpu == cvm_irq_cpu) {
 		enable_irq(OCTEON_IRQ_WORKQ0 + pow_receive_group);
 		return;
 	}
@@ -135,6 +133,7 @@ static irqreturn_t cvm_oct_do_interrupt(int cpl, void *dev_id)
 {
 	/* Disable the IRQ and start napi_poll. */
 	disable_irq_nosync(OCTEON_IRQ_WORKQ0 + pow_receive_group);
+	cvm_irq_cpu = smp_processor_id();
 	cvm_oct_enable_napi(NULL);
 
 	return IRQ_HANDLED;
-- 
cgit 


From d2ca24c7c32bf35d150e58e5ca6cd24fced1df0f Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Sun, 6 Oct 2013 23:35:16 +0300
Subject: staging: octeon-ethernet: allow to use only 1 CPU for packet
 processing

Module parameter max_rx_cpus has off-by-one error. Fix that.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon/ethernet-rx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c
index 0d539eb2be5b..0315f60497b7 100644
--- a/drivers/staging/octeon/ethernet-rx.c
+++ b/drivers/staging/octeon/ethernet-rx.c
@@ -513,7 +513,7 @@ void cvm_oct_rx_initialize(void)
 	if (NULL == dev_for_napi)
 		panic("No net_devices were allocated.");
 
-	if (max_rx_cpus > 1  && max_rx_cpus < num_online_cpus())
+	if (max_rx_cpus >= 1 && max_rx_cpus < num_online_cpus())
 		atomic_set(&core_state.available_cores, max_rx_cpus);
 	else
 		atomic_set(&core_state.available_cores, num_online_cpus());
-- 
cgit 


From 010013981ae9613742df125527e20a1175aa60d5 Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Fri, 4 Oct 2013 01:05:23 +0530
Subject: staging/cxt1e1:Fixes suspect code indent warning

Fixes checkpatch.pl warning "suspect code indent for conditional
statements" for comet.c.

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/cxt1e1/comet.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/cxt1e1/comet.c b/drivers/staging/cxt1e1/comet.c
index d71aea541811..8cef283102ee 100644
--- a/drivers/staging/cxt1e1/comet.c
+++ b/drivers/staging/cxt1e1/comet.c
@@ -147,8 +147,7 @@ void init_comet(void *ci, comet_t *comet, u_int32_t port_mode, int clockmaster,
 	pci_write_32((u_int32_t *) &comet->t1_rboc_ena, 0x00);
 	if (isT1mode)
 	{
-
-	/* IBCD cfg: aka Inband Code Detection ** loopback code length set to */
+		/* IBCD cfg: aka Inband Code Detection ** loopback code length set to */
 		/* 6 bit down, 5 bit up (assert) */
 		pci_write_32((u_int32_t *) &comet->ibcd_cfg, 0x04);
 		/* line loopback activate pattern */
@@ -353,7 +352,7 @@ void init_comet(void *ci, comet_t *comet, u_int32_t port_mode, int clockmaster,
 	/* RLPS Configuration Status */
 	pci_write_32((u_int32_t *) &comet->rlps_cfgsts, 0x11);
 	if (isT1mode)
-		 /* ? */
+		/* ? */
 		pci_write_32((u_int32_t *) &comet->rlps_alos_thresh, 0x55);
 	else
 		/* ? */
@@ -452,7 +451,7 @@ WrtRcvEqualizerTbl(ci_t *ci, comet_t *comet, u_int32_t *table)
 	volatile u_int32_t value;
 
 	for (ramaddr = 0; ramaddr < 256; ramaddr++) {
-	/*** the following lines are per Errata 7, 2.5 ***/
+		/*** the following lines are per Errata 7, 2.5 ***/
 		{
 		/* Set up for a read operation */
 		pci_write_32((u_int32_t *) &comet->rlps_eq_rwsel, 0x80);
-- 
cgit 


From 0350a1bd26ad4e5515c4e983076b43fb0679bdfe Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Sat, 5 Oct 2013 02:49:18 +0530
Subject: staging/media/go7007:Replace kern_debug with pr_debug

Replace kern_debug with pr_debug in go7007-usb.c

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/media/go7007/go7007-usb.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/media/go7007/go7007-usb.c b/drivers/staging/media/go7007/go7007-usb.c
index 46ed83245035..1aa659c04b7a 100644
--- a/drivers/staging/media/go7007/go7007-usb.c
+++ b/drivers/staging/media/go7007/go7007-usb.c
@@ -15,6 +15,8 @@
  * Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -663,7 +665,7 @@ static int go7007_usb_interface_reset(struct go7007 *go)
 	if (usb->board->flags & GO7007_USB_EZUSB) {
 		/* Reset buffer in EZ-USB */
 #ifdef GO7007_USB_DEBUG
-		printk(KERN_DEBUG "go7007-usb: resetting EZ-USB buffers\n");
+		pr_debug("resetting EZ-USB buffers\n");
 #endif
 		if (go7007_usb_vendor_request(go, 0x10, 0, 0, NULL, 0, 0) < 0 ||
 		    go7007_usb_vendor_request(go, 0x10, 0, 0, NULL, 0, 0) < 0)
@@ -694,8 +696,7 @@ static int go7007_usb_ezusb_write_interrupt(struct go7007 *go,
 	int timeout = 500;
 
 #ifdef GO7007_USB_DEBUG
-	printk(KERN_DEBUG
-		"go7007-usb: WriteInterrupt: %04x %04x\n", addr, data);
+	pr_debug("WriteInterrupt: %04x %04x\n", addr, data);
 #endif
 
 	for (i = 0; i < 100; ++i) {
@@ -744,8 +745,7 @@ static int go7007_usb_onboard_write_interrupt(struct go7007 *go,
 	int timeout = 500;
 
 #ifdef GO7007_USB_DEBUG
-	printk(KERN_DEBUG
-		"go7007-usb: WriteInterrupt: %04x %04x\n", addr, data);
+	pr_debug("WriteInterrupt: %04x %04x\n", addr, data);
 #endif
 
 	go->usb_buf[0] = data & 0xff;
@@ -786,7 +786,7 @@ static void go7007_usb_readinterrupt_complete(struct urb *urb)
 		go->interrupt_data = __le16_to_cpu(regs[0]);
 		go->interrupt_value = __le16_to_cpu(regs[1]);
 #ifdef GO7007_USB_DEBUG
-		printk(KERN_DEBUG "go7007-usb: ReadInterrupt: %04x %04x\n",
+		pr_debug("ReadInterrupt: %04x %04x\n",
 				go->interrupt_value, go->interrupt_data);
 #endif
 	}
@@ -912,7 +912,7 @@ static int go7007_usb_send_firmware(struct go7007 *go, u8 *data, int len)
 	int timeout = 500;
 
 #ifdef GO7007_USB_DEBUG
-	printk(KERN_DEBUG "go7007-usb: DownloadBuffer sending %d bytes\n", len);
+	pr_debug("DownloadBuffer sending %d bytes\n", len);
 #endif
 
 	if (usb->board->flags & GO7007_USB_EZUSB)
@@ -999,7 +999,7 @@ static int go7007_usb_i2c_master_xfer(struct i2c_adapter *adapter,
 				!(msgs[i].flags & I2C_M_RD) &&
 				(msgs[i + 1].flags & I2C_M_RD)) {
 #ifdef GO7007_I2C_DEBUG
-			printk(KERN_DEBUG "go7007-usb: i2c write/read %d/%d "
+			pr_debug("i2c write/read %d/%d "
 					"bytes on %02x\n", msgs[i].len,
 					msgs[i + 1].len, msgs[i].addr);
 #endif
@@ -1011,7 +1011,7 @@ static int go7007_usb_i2c_master_xfer(struct i2c_adapter *adapter,
 			buf[buf_len++] = msgs[++i].len;
 		} else if (msgs[i].flags & I2C_M_RD) {
 #ifdef GO7007_I2C_DEBUG
-			printk(KERN_DEBUG "go7007-usb: i2c read %d "
+			pr_debug("i2c read %d "
 					"bytes on %02x\n", msgs[i].len,
 					msgs[i].addr);
 #endif
@@ -1022,7 +1022,7 @@ static int go7007_usb_i2c_master_xfer(struct i2c_adapter *adapter,
 			buf_len = 4;
 		} else {
 #ifdef GO7007_I2C_DEBUG
-			printk(KERN_DEBUG "go7007-usb: i2c write %d "
+			pr_debug("i2c write %d "
 					"bytes on %02x\n", msgs[i].len,
 					msgs[i].addr);
 #endif
@@ -1082,7 +1082,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 	char *name;
 	int video_pipe, i, v_urb_len;
 
-	printk(KERN_DEBUG "go7007-usb: probing new GO7007 USB board\n");
+	pr_debug("probing new GO7007 USB board\n");
 
 	switch (id->driver_info) {
 	case GO7007_BOARDID_MATRIX_II:
@@ -1273,7 +1273,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 					sizeof(go->name));
 			break;
 		default:
-			printk(KERN_DEBUG "go7007-usb: unable to detect "
+			pr_debug("unable to detect "
 						"tuner type!\n");
 			break;
 		}
-- 
cgit 


From db6f016f023d701967b562a19086f6d2ef7098fb Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Sat, 5 Oct 2013 17:09:45 +0300
Subject: Staging: tidspbridge: fix no space before tabs

Fix checkpatch.pl issues please, no space before tabs in
drivers/staging/tidspbridge/rmgr/dspdrv.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/tidspbridge/rmgr/dspdrv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/tidspbridge/rmgr/dspdrv.c b/drivers/staging/tidspbridge/rmgr/dspdrv.c
index d460f5823c6b..012e4a38d2db 100644
--- a/drivers/staging/tidspbridge/rmgr/dspdrv.c
+++ b/drivers/staging/tidspbridge/rmgr/dspdrv.c
@@ -36,7 +36,7 @@
 
 /*
  *  ======== dsp_init ========
- *  	Allocates bridge resources. Loads a base image onto DSP, if specified.
+ *  Allocates bridge resources. Loads a base image onto DSP, if specified.
  */
 u32 dsp_init(u32 *init_status)
 {
@@ -106,7 +106,7 @@ func_cont:
 
 /*
  *  ======== dsp_deinit ========
- *  	Frees the resources allocated for bridge.
+ *  Frees the resources allocated for bridge.
  */
 bool dsp_deinit(u32 device_context)
 {
-- 
cgit 


From 4910071518a07edc6ba6015c5879f16fa3c8d34d Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Sat, 5 Oct 2013 17:11:39 +0300
Subject: Staging: keucr: fix quoted string split across lines

Fix checkpatch.pl issues quoted string split across lines in usb.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/keucr/usb.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/staging/keucr/usb.c b/drivers/staging/keucr/usb.c
index ddd2e7390b46..a84ee6303368 100644
--- a/drivers/staging/keucr/usb.c
+++ b/drivers/staging/keucr/usb.c
@@ -604,9 +604,7 @@ static int eucr_probe(struct usb_interface *intf,
 	if (!(MiscReg03 & 0x02)) {
 		result = -ENODEV;
 		quiesce_and_remove_host(us);
-		pr_info("keucr: The driver only supports SM/MS card. "
-			"To use SD card, "
-			"please build driver/usb/storage/ums-eneub6250.ko\n");
+		pr_info("keucr: The driver only supports SM/MS card. To use SD card, please build driver/usb/storage/ums-eneub6250.ko\n");
 		goto BadDevice;
 	}
 
-- 
cgit 


From ae1dd9bc552ba1cfeeb38d49448cb4db4bd34a76 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Sat, 5 Oct 2013 18:08:49 +0300
Subject: Staging: xillybus: quoted strings split across lines

Fix checkpatch.pl issues with quoted strings split across lines in xillybus_core.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/xillybus/xillybus_core.c | 84 ++++++++++----------------------
 1 file changed, 25 insertions(+), 59 deletions(-)

diff --git a/drivers/staging/xillybus/xillybus_core.c b/drivers/staging/xillybus/xillybus_core.c
index 7db6f03a0054..e77fb28440f8 100644
--- a/drivers/staging/xillybus/xillybus_core.c
+++ b/drivers/staging/xillybus/xillybus_core.c
@@ -112,8 +112,7 @@ static void malformed_message(u32 *buf)
 	msg_bufno = (buf[0] >> 12) & 0x3ff;
 	msg_data = buf[1] & 0xfffffff;
 
-	pr_warn("xillybus: Malformed message (skipping): "
-		"opcode=%d, channel=%03x, dir=%d, bufno=%03x, data=%07x\n",
+	pr_warn("xillybus: Malformed message (skipping): opcode=%d, channel=%03x, dir=%d, bufno=%03x, data=%07x\n",
 		opcode, msg_channel, msg_dir, msg_bufno, msg_data);
 }
 
@@ -153,15 +152,13 @@ irqreturn_t xillybus_isr(int irq, void *data)
 	for (i = 0; i < buf_size; i += 2)
 		if (((buf[i+1] >> 28) & 0xf) != ep->msg_counter) {
 			malformed_message(&buf[i]);
-			pr_warn("xillybus: Sending a NACK on "
-				"counter %x (instead of %x) on entry %d\n",
+			pr_warn("xillybus: Sending a NACK on counter %x (instead of %x) on entry %d\n",
 				((buf[i+1] >> 28) & 0xf),
 				ep->msg_counter,
 				i/2);
 
 			if (++ep->failed_messages > 10)
-				pr_err("xillybus: Lost sync with "
-				       "interrupt messages. Stopping.\n");
+				pr_err("xillybus: Lost sync with interrupt messages. Stopping.\n");
 			else {
 				ep->ephw->hw_sync_sgl_for_device(
 					ep,
@@ -283,13 +280,7 @@ irqreturn_t xillybus_isr(int irq, void *data)
 		case XILLYMSG_OPCODE_FATAL_ERROR:
 			ep->fatal_error = 1;
 			wake_up_interruptible(&ep->ep_wait); /* For select() */
-			pr_err("xillybus: FPGA reported a fatal "
-			       "error. This means that the low-level "
-			       "communication with the device has failed. "
-			       "This hardware problem is most likely "
-			       "unrelated to xillybus (neither kernel "
-			       "module nor FPGA core), but reports are "
-			       "still welcome. All I/O is aborted.\n");
+			pr_err("xillybus: FPGA reported a fatal error. This means that the low-level communication with the device has failed. This hardware problem is most likely unrelated to xillybus (neither kernel module nor FPGA core), but reports are still welcome. All I/O is aborted.\n");
 			break;
 		default:
 			malformed_message(&buf[i]);
@@ -486,8 +477,7 @@ static int xilly_setupchannels(struct xilly_endpoint *ep,
 
 		if ((channelnum > ep->num_channels) ||
 		    ((channelnum == 0) && !is_writebuf)) {
-			pr_err("xillybus: IDT requests channel out "
-			       "of range. Aborting.\n");
+			pr_err("xillybus: IDT requests channel out of range. Aborting.\n");
 			return -ENODEV;
 		}
 
@@ -565,9 +555,7 @@ static int xilly_setupchannels(struct xilly_endpoint *ep,
 				 */
 				if ((left_of_wr_salami < bytebufsize) &&
 				    (left_of_wr_salami > 0)) {
-					pr_err("xillybus: "
-					       "Corrupt buffer allocation "
-					       "in IDT. Aborting.\n");
+					pr_err("xillybus: Corrupt buffer allocation in IDT. Aborting.\n");
 					return -ENODEV;
 				}
 
@@ -644,9 +632,7 @@ static int xilly_setupchannels(struct xilly_endpoint *ep,
 				 */
 				if ((left_of_rd_salami < bytebufsize) &&
 				    (left_of_rd_salami > 0)) {
-					pr_err("xillybus: "
-					       "Corrupt buffer allocation "
-					       "in IDT. Aborting.\n");
+					pr_err("xillybus: Corrupt buffer allocation in IDT. Aborting.\n");
 					return -ENODEV;
 				}
 
@@ -706,16 +692,14 @@ static int xilly_setupchannels(struct xilly_endpoint *ep,
 	}
 
 	if (!msg_buf_done) {
-		pr_err("xillybus: Corrupt IDT: No message buffer. "
-		       "Aborting.\n");
+		pr_err("xillybus: Corrupt IDT: No message buffer. Aborting.\n");
 		return -ENODEV;
 	}
 
 	return 0;
 
 memfail:
-	pr_err("xillybus: Failed to allocate write buffer memory. "
-	       "Aborting.\n");
+	pr_err("xillybus: Failed to allocate write buffer memory. Aborting.\n");
 	return -ENOMEM;
 dmafail:
 	pr_err("xillybus: Failed to map DMA memory!. Aborting.\n");
@@ -745,8 +729,7 @@ static void xilly_scan_idt(struct xilly_endpoint *endpoint,
 	scan++;
 
 	if (scan > end_of_idt) {
-		pr_err("xillybus: IDT device name list overflow. "
-		       "Aborting.\n");
+		pr_err("xillybus: IDT device name list overflow. Aborting.\n");
 		idt_handle->chandesc = NULL;
 		return;
 	} else
@@ -757,8 +740,7 @@ static void xilly_scan_idt(struct xilly_endpoint *endpoint,
 	if (len & 0x03) {
 		idt_handle->chandesc = NULL;
 
-		pr_err("xillybus: Corrupt IDT device name list. "
-		       "Aborting.\n");
+		pr_err("xillybus: Corrupt IDT device name list. Aborting.\n");
 	}
 
 	idt_handle->entries = len >> 2;
@@ -803,8 +785,7 @@ static int xilly_obtain_idt(struct xilly_endpoint *endpoint)
 		DMA_FROM_DEVICE);
 
 	if (channel->wr_buffers[0]->end_offset != endpoint->idtlen) {
-		pr_err("xillybus: IDT length mismatch (%d != %d). "
-		       "Aborting.\n",
+		pr_err("xillybus: IDT length mismatch (%d != %d). Aborting.\n",
 		       channel->wr_buffers[0]->end_offset, endpoint->idtlen);
 		rc = -ENODEV;
 		return rc;
@@ -821,9 +802,7 @@ static int xilly_obtain_idt(struct xilly_endpoint *endpoint)
 
 	/* Check version number. Accept anything below 0x82 for now. */
 	if (*version > 0x82) {
-		pr_err("xillybus: No support for IDT version 0x%02x. "
-		       "Maybe the xillybus driver needs an upgarde. "
-		       "Aborting.\n",
+		pr_err("xillybus: No support for IDT version 0x%02x. Maybe the xillybus driver needs an upgarde. Aborting.\n",
 		       (int) *version);
 		rc = -ENODEV;
 		return rc;
@@ -1312,9 +1291,7 @@ static int xillybus_myflush(struct xilly_channel *channel, long timeout)
 				 channel->rd_wait,
 				 (!channel->rd_full),
 				 timeout) == 0) {
-			pr_warn("xillybus: "
-				"Timed out while flushing. "
-				"Output data may be lost.\n");
+			pr_warn("xillybus: Timed out while flushing. Output data may be lost.\n");
 
 			rc = -ETIMEDOUT;
 			break;
@@ -1354,11 +1331,9 @@ static void xillybus_autoflush(struct work_struct *work)
 	rc = xillybus_myflush(channel, -1);
 
 	if (rc == -EINTR)
-		pr_warn("xillybus: Autoflush failed because "
-			"work queue thread got a signal.\n");
+		pr_warn("xillybus: Autoflush failed because work queue thread got a signal.\n");
 	else if (rc)
-		pr_err("xillybus: Autoflush failed under "
-		       "weird circumstances.\n");
+		pr_err("xillybus: Autoflush failed under weird circumstances.\n");
 
 }
 
@@ -1615,8 +1590,8 @@ static int xillybus_open(struct inode *inode, struct file *filp)
 	mutex_unlock(&ep_list_lock);
 
 	if (!endpoint) {
-		pr_err("xillybus: open() failed to find a device "
-		       "for major=%d and minor=%d\n", major, minor);
+		pr_err("xillybus: open() failed to find a device for major=%d and minor=%d\n",
+		       major, minor);
 		return -ENODEV;
 	}
 
@@ -1642,15 +1617,13 @@ static int xillybus_open(struct inode *inode, struct file *filp)
 	if ((filp->f_mode & FMODE_READ) && (filp->f_flags & O_NONBLOCK) &&
 	    (channel->wr_synchronous || !channel->wr_allow_partial ||
 	     !channel->wr_supports_nonempty)) {
-		pr_err("xillybus: open() failed: "
-		       "O_NONBLOCK not allowed for read on this device\n");
+		pr_err("xillybus: open() failed: O_NONBLOCK not allowed for read on this device\n");
 		return -ENODEV;
 	}
 
 	if ((filp->f_mode & FMODE_WRITE) && (filp->f_flags & O_NONBLOCK) &&
 	    (channel->rd_synchronous || !channel->rd_allow_partial)) {
-		pr_err("xillybus: open() failed: "
-		       "O_NONBLOCK not allowed for write on this device\n");
+		pr_err("xillybus: open() failed: O_NONBLOCK not allowed for write on this device\n");
 		return -ENODEV;
 	}
 
@@ -1765,8 +1738,7 @@ static int xillybus_release(struct inode *inode, struct file *filp)
 		rc = mutex_lock_interruptible(&channel->rd_mutex);
 
 		if (rc) {
-			pr_warn("xillybus: Failed to close file. "
-				"Hardware left in messy state.\n");
+			pr_warn("xillybus: Failed to close file. Hardware left in messy state.\n");
 			return rc;
 		}
 
@@ -1791,8 +1763,7 @@ static int xillybus_release(struct inode *inode, struct file *filp)
 	if (filp->f_mode & FMODE_READ) {
 		rc = mutex_lock_interruptible(&channel->wr_mutex);
 		if (rc) {
-			pr_warn("xillybus: Failed to close file. "
-				"Hardware left in messy state.\n");
+			pr_warn("xillybus: Failed to close file. Hardware left in messy state.\n");
 			return rc;
 		}
 
@@ -1853,10 +1824,7 @@ static int xillybus_release(struct inode *inode, struct file *filp)
 
 				if (channel->wr_sleepy) {
 					mutex_unlock(&channel->wr_mutex);
-					pr_warn("xillybus: Hardware failed to "
-						"respond to close command, "
-						"therefore left in "
-						"messy state.\n");
+					pr_warn("xillybus: Hardware failed to respond to close command, therefore left in messy state.\n");
 					return -EINTR;
 				}
 			}
@@ -2057,8 +2025,7 @@ static int xillybus_init_chrdev(struct xilly_endpoint *endpoint,
 				       "%s", devname);
 
 		if (IS_ERR(device)) {
-			pr_warn("xillybus: Failed to create %s "
-				"device. Aborting.\n", devname);
+			pr_warn("xillybus: Failed to create %s device. Aborting.\n", devname);
 			goto error3;
 		}
 	}
@@ -2141,8 +2108,7 @@ static int xilly_quiesce(struct xilly_endpoint *endpoint)
 					 XILLY_TIMEOUT);
 
 	if (endpoint->idtlen < 0) {
-		pr_err("xillybus: Failed to quiesce the device on "
-		       "exit. Quitting while leaving a mess.\n");
+		pr_err("xillybus: Failed to quiesce the device on exit. Quitting while leaving a mess.\n");
 		return -ENODEV;
 	}
 	return 0; /* Success */
-- 
cgit 


From d7c0886e6224a1f8a4987dd850b4a25efa1e617b Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Sun, 6 Oct 2013 14:46:47 +0300
Subject: Staging: iio: iio_simple_dummy: fix line over 80 characters

Fix checkpatch.pl issues with line over 80 characters in
iio_simple_dummy.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/iio/iio_simple_dummy.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/iio/iio_simple_dummy.c b/drivers/staging/iio/iio_simple_dummy.c
index 141ec6188dea..9135e603f587 100644
--- a/drivers/staging/iio/iio_simple_dummy.c
+++ b/drivers/staging/iio/iio_simple_dummy.c
@@ -470,7 +470,8 @@ static int iio_dummy_probe(int index)
 	 * buffer, but avoid the output channel being registered by reducing the
 	 * number of channels by 1.
 	 */
-	ret = iio_simple_dummy_configure_buffer(indio_dev, iio_dummy_channels, 5);
+	ret = iio_simple_dummy_configure_buffer(indio_dev,
+						iio_dummy_channels, 5);
 	if (ret < 0)
 		goto error_unregister_events;
 
-- 
cgit 


From ffb283e10444b1495557368ebc3446b89ad65bcf Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Sun, 6 Oct 2013 15:15:37 +0300
Subject: Staging: iio: space prohibited before semicolon

Fix checkpatch.pl issues with space prohibited before semicolon in
lis3l02dq_ring.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/iio/accel/lis3l02dq_ring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c
index aae86ddd658b..c1532b0523a3 100644
--- a/drivers/staging/iio/accel/lis3l02dq_ring.c
+++ b/drivers/staging/iio/accel/lis3l02dq_ring.c
@@ -111,7 +111,7 @@ static int lis3l02dq_get_buffer_element(struct iio_dev *indio_dev,
 				u8 *buf)
 {
 	int ret, i;
-	u8 *rx_array ;
+	u8 *rx_array;
 	s16 *data = (s16 *)buf;
 	int scan_count = bitmap_weight(indio_dev->active_scan_mask,
 				       indio_dev->masklength);
-- 
cgit 


From b4a051d82f2bbc75419625ca10f9dd7fac13e4c0 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Sun, 6 Oct 2013 15:15:38 +0300
Subject: Staging: iio: printk(KERN_INFO ...

Fix checkpatch.pl issues with prefer netdev_info(netdev, .. then dev_info(dev, ..
then pr_info(...  to printk(KERN_INFO .. in lis3l02dq_ring.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/iio/accel/lis3l02dq_ring.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c
index c1532b0523a3..ed7de471e3f3 100644
--- a/drivers/staging/iio/accel/lis3l02dq_ring.c
+++ b/drivers/staging/iio/accel/lis3l02dq_ring.c
@@ -260,8 +260,7 @@ static int lis3l02dq_trig_try_reen(struct iio_trigger *trig)
 		else
 			break;
 	if (i == 5)
-		printk(KERN_INFO
-		       "Failed to clear the interrupt for lis3l02dq\n");
+		pr_info("Failed to clear the interrupt for lis3l02dq\n");
 
 	/* irq reenabled so success! */
 	return 0;
-- 
cgit 


From 106cac299dd767283d4b74f2d9cb26378bd09311 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Sun, 6 Oct 2013 15:49:57 +0300
Subject: Staging: iio: adt7316-spi: fix quoted string split across lines

Fix checkpatch.pl issues with quoted string split across lines in adt7316-spi.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/iio/addac/adt7316-spi.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/iio/addac/adt7316-spi.c b/drivers/staging/iio/addac/adt7316-spi.c
index 0db8ef5835a0..7f4f0a8245b4 100644
--- a/drivers/staging/iio/addac/adt7316-spi.c
+++ b/drivers/staging/iio/addac/adt7316-spi.c
@@ -146,6 +146,5 @@ static struct spi_driver adt7316_driver = {
 module_spi_driver(adt7316_driver);
 
 MODULE_AUTHOR("Sonic Zhang <sonic.zhang@analog.com>");
-MODULE_DESCRIPTION("SPI bus driver for Analog Devices ADT7316/7/8 and"
-			"ADT7516/7/9 digital temperature sensor, ADC and DAC");
+MODULE_DESCRIPTION("SPI bus driver for Analog Devices ADT7316/7/8 and ADT7516/7/9 digital temperature sensor, ADC and DAC");
 MODULE_LICENSE("GPL v2");
-- 
cgit 


From edf7abde26cd2625fe17a1a1f6a35aa758f72cd0 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Sun, 6 Oct 2013 15:46:15 +0300
Subject: Staging: iio: adt7316-i2c: quoted string split across lines

Fix checkpatch.pl issues with quoted string split across lines in adt7316-i2c.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/iio/addac/adt7316-i2c.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/iio/addac/adt7316-i2c.c b/drivers/staging/iio/addac/adt7316-i2c.c
index ce7d91cb331c..0feea5541d02 100644
--- a/drivers/staging/iio/addac/adt7316-i2c.c
+++ b/drivers/staging/iio/addac/adt7316-i2c.c
@@ -138,6 +138,5 @@ static struct i2c_driver adt7316_driver = {
 module_i2c_driver(adt7316_driver);
 
 MODULE_AUTHOR("Sonic Zhang <sonic.zhang@analog.com>");
-MODULE_DESCRIPTION("I2C bus driver for Analog Devices ADT7316/7/9 and"
-			"ADT7516/7/8 digital temperature sensor, ADC and DAC");
+MODULE_DESCRIPTION("I2C bus driver for Analog Devices ADT7316/7/9 and ADT7516/7/8 digital temperature sensor, ADC and DAC");
 MODULE_LICENSE("GPL v2");
-- 
cgit 


From ac1ed0c0e1a3b52cac89aae92ebc55fd4c19be77 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 23 Sep 2013 18:12:04 -0300
Subject: crypto: dcp - Check the return value from devm_ioremap_resource()

devm_ioremap_resource() may fail, so better check its return value and propagate
it in the case of error.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/dcp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/crypto/dcp.c b/drivers/crypto/dcp.c
index 7b77c8457854..247ab8048f5b 100644
--- a/drivers/crypto/dcp.c
+++ b/drivers/crypto/dcp.c
@@ -734,6 +734,8 @@ static int dcp_probe(struct platform_device *pdev)
 
 	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	dev->dcp_regs_base = devm_ioremap_resource(&pdev->dev, r);
+	if (IS_ERR(dev->dcp_regs_base))
+		return PTR_ERR(dev->dcp_regs_base);
 
 	dcp_set(dev, DCP_CTRL_SFRST, DCP_REG_CTRL);
 	udelay(10);
-- 
cgit 


From ea493d324f6ae26907e3d99fb0dc7a89083ad798 Mon Sep 17 00:00:00 2001
From: kbuild test robot <fengguang.wu@intel.com>
Date: Tue, 24 Sep 2013 08:21:29 +0800
Subject: crypto: ablk_helper - Replace memcpy with struct assignment

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master
head:   48e6dc1b2a1ad8186d48968d5018912bdacac744
commit: a62b01cd6cc1feb5e80d64d6937c291473ed82cb [20/24] crypto: create generic version of ablk_helper

coccinelle warnings: (new ones prefixed by >>)

>> crypto/ablk_helper.c:97:2-8: Replace memcpy with struct assignment
>> crypto/ablk_helper.c:78:2-8: Replace memcpy with struct assignment

Please consider folding the attached diff :-)

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/ablk_helper.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/crypto/ablk_helper.c b/crypto/ablk_helper.c
index 62568b1fc885..ffe7278d4bd8 100644
--- a/crypto/ablk_helper.c
+++ b/crypto/ablk_helper.c
@@ -75,7 +75,7 @@ int ablk_encrypt(struct ablkcipher_request *req)
 		struct ablkcipher_request *cryptd_req =
 			ablkcipher_request_ctx(req);
 
-		memcpy(cryptd_req, req, sizeof(*req));
+		*cryptd_req = *req;
 		ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
 
 		return crypto_ablkcipher_encrypt(cryptd_req);
@@ -94,7 +94,7 @@ int ablk_decrypt(struct ablkcipher_request *req)
 		struct ablkcipher_request *cryptd_req =
 			ablkcipher_request_ctx(req);
 
-		memcpy(cryptd_req, req, sizeof(*req));
+		*cryptd_req = *req;
 		ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
 
 		return crypto_ablkcipher_decrypt(cryptd_req);
-- 
cgit 


From 49cca7e047468f5f80970d635b54afabeb441cce Mon Sep 17 00:00:00 2001
From: Michael Ellerman <michael@ellerman.id.au>
Date: Wed, 25 Sep 2013 19:24:16 +1000
Subject: hwrng: pseries - Use KBUILD_MODNAME in pseries-rng.c

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/char/hw_random/pseries-rng.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/char/hw_random/pseries-rng.c b/drivers/char/hw_random/pseries-rng.c
index 5f1197929f0c..9dbeed391e57 100644
--- a/drivers/char/hw_random/pseries-rng.c
+++ b/drivers/char/hw_random/pseries-rng.c
@@ -21,7 +21,6 @@
 #include <linux/hw_random.h>
 #include <asm/vio.h>
 
-#define MODULE_NAME "pseries-rng"
 
 static int pseries_rng_data_read(struct hwrng *rng, u32 *data)
 {
@@ -47,7 +46,7 @@ static unsigned long pseries_rng_get_desired_dma(struct vio_dev *vdev)
 };
 
 static struct hwrng pseries_rng = {
-	.name		= MODULE_NAME,
+	.name		= KBUILD_MODNAME,
 	.data_read	= pseries_rng_data_read,
 };
 
@@ -70,7 +69,7 @@ static struct vio_device_id pseries_rng_driver_ids[] = {
 MODULE_DEVICE_TABLE(vio, pseries_rng_driver_ids);
 
 static struct vio_driver pseries_rng_driver = {
-	.name = MODULE_NAME,
+	.name = KBUILD_MODNAME,
 	.probe = pseries_rng_probe,
 	.remove = pseries_rng_remove,
 	.get_desired_dma = pseries_rng_get_desired_dma,
-- 
cgit 


From d319fe2a0af3509f959d5195fb8916accbf14857 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <michael@ellerman.id.au>
Date: Wed, 25 Sep 2013 19:24:17 +1000
Subject: hwrng: pseries - Return errors to upper levels in pseries-rng.c

We don't expect to get errors from the hypervisor when reading the rng,
but if we do we should pass the error up to the hwrng driver. Otherwise
the hwrng driver will continue calling us forever.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/char/hw_random/pseries-rng.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/char/hw_random/pseries-rng.c b/drivers/char/hw_random/pseries-rng.c
index 9dbeed391e57..ab7ffdec0ec3 100644
--- a/drivers/char/hw_random/pseries-rng.c
+++ b/drivers/char/hw_random/pseries-rng.c
@@ -17,6 +17,9 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/hw_random.h>
 #include <asm/vio.h>
@@ -24,10 +27,15 @@
 
 static int pseries_rng_data_read(struct hwrng *rng, u32 *data)
 {
-	if (plpar_hcall(H_RANDOM, (unsigned long *)data) != H_SUCCESS) {
-		printk(KERN_ERR "pseries rng hcall error\n");
-		return 0;
+	int rc;
+
+	rc = plpar_hcall(H_RANDOM, (unsigned long *)data);
+	if (rc != H_SUCCESS) {
+		pr_err_ratelimited("H_RANDOM call failed %d\n", rc);
+		return -EIO;
 	}
+
+	/* The hypervisor interface returns 64 bits */
 	return 8;
 }
 
-- 
cgit 


From 6bf37e5aa90f18baf5acf4874bca505dd667c37f Mon Sep 17 00:00:00 2001
From: James Yonan <james@openvpn.net>
Date: Thu, 26 Sep 2013 02:20:39 -0600
Subject: crypto: crypto_memneq - add equality testing of memory regions w/o
 timing leaks

When comparing MAC hashes, AEAD authentication tags, or other hash
values in the context of authentication or integrity checking, it
is important not to leak timing information to a potential attacker,
i.e. when communication happens over a network.

Bytewise memory comparisons (such as memcmp) are usually optimized so
that they return a nonzero value as soon as a mismatch is found. E.g,
on x86_64/i5 for 512 bytes this can be ~50 cyc for a full mismatch
and up to ~850 cyc for a full match (cold). This early-return behavior
can leak timing information as a side channel, allowing an attacker to
iteratively guess the correct result.

This patch adds a new method crypto_memneq ("memory not equal to each
other") to the crypto API that compares memory areas of the same length
in roughly "constant time" (cache misses could change the timing, but
since they don't reveal information about the content of the strings
being compared, they are effectively benign). Iow, best and worst case
behaviour take the same amount of time to complete (in contrast to
memcmp).

Note that crypto_memneq (unlike memcmp) can only be used to test for
equality or inequality, NOT for lexicographical order. This, however,
is not an issue for its use-cases within the crypto API.

We tried to locate all of the places in the crypto API where memcmp was
being used for authentication or integrity checking, and convert them
over to crypto_memneq.

crypto_memneq is declared noinline, placed in its own source file,
and compiled with optimizations that might increase code size disabled
("Os") because a smart compiler (or LTO) might notice that the return
value is always compared against zero/nonzero, and might then
reintroduce the same early-return optimization that we are trying to
avoid.

Using #pragma or __attribute__ optimization annotations of the code
for disabling optimization was avoided as it seems to be considered
broken or unmaintained for long time in GCC [1]. Therefore, we work
around that by specifying the compile flag for memneq.o directly in
the Makefile. We found that this seems to be most appropriate.

As we use ("Os"), this patch also provides a loop-free "fast-path" for
frequently used 16 byte digests. Similarly to kernel library string
functions, leave an option for future even further optimized architecture
specific assembler implementations.

This was a joint work of James Yonan and Daniel Borkmann. Also thanks
for feedback from Florian Weimer on this and earlier proposals [2].

  [1] http://gcc.gnu.org/ml/gcc/2012-07/msg00211.html
  [2] https://lkml.org/lkml/2013/2/10/131

Signed-off-by: James Yonan <james@openvpn.net>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Florian Weimer <fw@deneb.enyo.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/Makefile              |   7 ++-
 crypto/asymmetric_keys/rsa.c |   5 +-
 crypto/authenc.c             |   6 +-
 crypto/authencesn.c          |   8 +--
 crypto/ccm.c                 |   4 +-
 crypto/gcm.c                 |   2 +-
 crypto/memneq.c              | 138 +++++++++++++++++++++++++++++++++++++++++++
 include/crypto/algapi.h      |  18 +++++-
 8 files changed, 174 insertions(+), 14 deletions(-)
 create mode 100644 crypto/memneq.c

diff --git a/crypto/Makefile b/crypto/Makefile
index 580af977f496..d6a401c58d17 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -2,8 +2,13 @@
 # Cryptographic API
 #
 
+# memneq MUST be built with -Os or -O0 to prevent early-return optimizations
+# that will defeat memneq's actual purpose to prevent timing attacks.
+CFLAGS_REMOVE_memneq.o := -O1 -O2 -O3
+CFLAGS_memneq.o := -Os
+
 obj-$(CONFIG_CRYPTO) += crypto.o
-crypto-y := api.o cipher.o compress.o
+crypto-y := api.o cipher.o compress.o memneq.o
 
 obj-$(CONFIG_CRYPTO_WORKQUEUE) += crypto_wq.o
 
diff --git a/crypto/asymmetric_keys/rsa.c b/crypto/asymmetric_keys/rsa.c
index 4a6a0696f8a3..1912b9be5043 100644
--- a/crypto/asymmetric_keys/rsa.c
+++ b/crypto/asymmetric_keys/rsa.c
@@ -13,6 +13,7 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
+#include <crypto/algapi.h>
 #include "public_key.h"
 
 MODULE_LICENSE("GPL");
@@ -189,12 +190,12 @@ static int RSA_verify(const u8 *H, const u8 *EM, size_t k, size_t hash_size,
 		}
 	}
 
-	if (memcmp(asn1_template, EM + T_offset, asn1_size) != 0) {
+	if (crypto_memneq(asn1_template, EM + T_offset, asn1_size) != 0) {
 		kleave(" = -EBADMSG [EM[T] ASN.1 mismatch]");
 		return -EBADMSG;
 	}
 
-	if (memcmp(H, EM + T_offset + asn1_size, hash_size) != 0) {
+	if (crypto_memneq(H, EM + T_offset + asn1_size, hash_size) != 0) {
 		kleave(" = -EKEYREJECTED [EM[T] hash mismatch]");
 		return -EKEYREJECTED;
 	}
diff --git a/crypto/authenc.c b/crypto/authenc.c
index ffce19de05cf..2b3f4abda929 100644
--- a/crypto/authenc.c
+++ b/crypto/authenc.c
@@ -188,7 +188,7 @@ static void authenc_verify_ahash_update_done(struct crypto_async_request *areq,
 	scatterwalk_map_and_copy(ihash, areq_ctx->sg, areq_ctx->cryptlen,
 				 authsize, 0);
 
-	err = memcmp(ihash, ahreq->result, authsize) ? -EBADMSG : 0;
+	err = crypto_memneq(ihash, ahreq->result, authsize) ? -EBADMSG : 0;
 	if (err)
 		goto out;
 
@@ -227,7 +227,7 @@ static void authenc_verify_ahash_done(struct crypto_async_request *areq,
 	scatterwalk_map_and_copy(ihash, areq_ctx->sg, areq_ctx->cryptlen,
 				 authsize, 0);
 
-	err = memcmp(ihash, ahreq->result, authsize) ? -EBADMSG : 0;
+	err = crypto_memneq(ihash, ahreq->result, authsize) ? -EBADMSG : 0;
 	if (err)
 		goto out;
 
@@ -462,7 +462,7 @@ static int crypto_authenc_verify(struct aead_request *req,
 	ihash = ohash + authsize;
 	scatterwalk_map_and_copy(ihash, areq_ctx->sg, areq_ctx->cryptlen,
 				 authsize, 0);
-	return memcmp(ihash, ohash, authsize) ? -EBADMSG : 0;
+	return crypto_memneq(ihash, ohash, authsize) ? -EBADMSG : 0;
 }
 
 static int crypto_authenc_iverify(struct aead_request *req, u8 *iv,
diff --git a/crypto/authencesn.c b/crypto/authencesn.c
index ab53762fc309..c569d58de661 100644
--- a/crypto/authencesn.c
+++ b/crypto/authencesn.c
@@ -247,7 +247,7 @@ static void authenc_esn_verify_ahash_update_done(struct crypto_async_request *ar
 	scatterwalk_map_and_copy(ihash, areq_ctx->sg, areq_ctx->cryptlen,
 				 authsize, 0);
 
-	err = memcmp(ihash, ahreq->result, authsize) ? -EBADMSG : 0;
+	err = crypto_memneq(ihash, ahreq->result, authsize) ? -EBADMSG : 0;
 	if (err)
 		goto out;
 
@@ -296,7 +296,7 @@ static void authenc_esn_verify_ahash_update_done2(struct crypto_async_request *a
 	scatterwalk_map_and_copy(ihash, areq_ctx->sg, areq_ctx->cryptlen,
 				 authsize, 0);
 
-	err = memcmp(ihash, ahreq->result, authsize) ? -EBADMSG : 0;
+	err = crypto_memneq(ihash, ahreq->result, authsize) ? -EBADMSG : 0;
 	if (err)
 		goto out;
 
@@ -336,7 +336,7 @@ static void authenc_esn_verify_ahash_done(struct crypto_async_request *areq,
 	scatterwalk_map_and_copy(ihash, areq_ctx->sg, areq_ctx->cryptlen,
 				 authsize, 0);
 
-	err = memcmp(ihash, ahreq->result, authsize) ? -EBADMSG : 0;
+	err = crypto_memneq(ihash, ahreq->result, authsize) ? -EBADMSG : 0;
 	if (err)
 		goto out;
 
@@ -568,7 +568,7 @@ static int crypto_authenc_esn_verify(struct aead_request *req)
 	ihash = ohash + authsize;
 	scatterwalk_map_and_copy(ihash, areq_ctx->sg, areq_ctx->cryptlen,
 				 authsize, 0);
-	return memcmp(ihash, ohash, authsize) ? -EBADMSG : 0;
+	return crypto_memneq(ihash, ohash, authsize) ? -EBADMSG : 0;
 }
 
 static int crypto_authenc_esn_iverify(struct aead_request *req, u8 *iv,
diff --git a/crypto/ccm.c b/crypto/ccm.c
index 499c91717d93..3e05499d183a 100644
--- a/crypto/ccm.c
+++ b/crypto/ccm.c
@@ -363,7 +363,7 @@ static void crypto_ccm_decrypt_done(struct crypto_async_request *areq,
 
 	if (!err) {
 		err = crypto_ccm_auth(req, req->dst, cryptlen);
-		if (!err && memcmp(pctx->auth_tag, pctx->odata, authsize))
+		if (!err && crypto_memneq(pctx->auth_tag, pctx->odata, authsize))
 			err = -EBADMSG;
 	}
 	aead_request_complete(req, err);
@@ -422,7 +422,7 @@ static int crypto_ccm_decrypt(struct aead_request *req)
 		return err;
 
 	/* verify */
-	if (memcmp(authtag, odata, authsize))
+	if (crypto_memneq(authtag, odata, authsize))
 		return -EBADMSG;
 
 	return err;
diff --git a/crypto/gcm.c b/crypto/gcm.c
index 43e1fb05ea54..b4f017939004 100644
--- a/crypto/gcm.c
+++ b/crypto/gcm.c
@@ -582,7 +582,7 @@ static int crypto_gcm_verify(struct aead_request *req,
 
 	crypto_xor(auth_tag, iauth_tag, 16);
 	scatterwalk_map_and_copy(iauth_tag, req->src, cryptlen, authsize, 0);
-	return memcmp(iauth_tag, auth_tag, authsize) ? -EBADMSG : 0;
+	return crypto_memneq(iauth_tag, auth_tag, authsize) ? -EBADMSG : 0;
 }
 
 static void gcm_decrypt_done(struct crypto_async_request *areq, int err)
diff --git a/crypto/memneq.c b/crypto/memneq.c
new file mode 100644
index 000000000000..cd0162221c14
--- /dev/null
+++ b/crypto/memneq.c
@@ -0,0 +1,138 @@
+/*
+ * Constant-time equality testing of memory regions.
+ *
+ * Authors:
+ *
+ *   James Yonan <james@openvpn.net>
+ *   Daniel Borkmann <dborkman@redhat.com>
+ *
+ * This file is provided under a dual BSD/GPLv2 license.  When using or
+ * redistributing this file, you may do so under either license.
+ *
+ * GPL LICENSE SUMMARY
+ *
+ * Copyright(c) 2013 OpenVPN Technologies, Inc. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ * The full GNU General Public License is included in this distribution
+ * in the file called LICENSE.GPL.
+ *
+ * BSD LICENSE
+ *
+ * Copyright(c) 2013 OpenVPN Technologies, Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in
+ *     the documentation and/or other materials provided with the
+ *     distribution.
+ *   * Neither the name of OpenVPN Technologies nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <crypto/algapi.h>
+
+#ifndef __HAVE_ARCH_CRYPTO_MEMNEQ
+
+/* Generic path for arbitrary size */
+static inline unsigned long
+__crypto_memneq_generic(const void *a, const void *b, size_t size)
+{
+	unsigned long neq = 0;
+
+#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
+	while (size >= sizeof(unsigned long)) {
+		neq |= *(unsigned long *)a ^ *(unsigned long *)b;
+		a += sizeof(unsigned long);
+		b += sizeof(unsigned long);
+		size -= sizeof(unsigned long);
+	}
+#endif /* CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS */
+	while (size > 0) {
+		neq |= *(unsigned char *)a ^ *(unsigned char *)b;
+		a += 1;
+		b += 1;
+		size -= 1;
+	}
+	return neq;
+}
+
+/* Loop-free fast-path for frequently used 16-byte size */
+static inline unsigned long __crypto_memneq_16(const void *a, const void *b)
+{
+#ifdef CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS
+	if (sizeof(unsigned long) == 8)
+		return ((*(unsigned long *)(a)   ^ *(unsigned long *)(b))
+		      | (*(unsigned long *)(a+8) ^ *(unsigned long *)(b+8)));
+	else if (sizeof(unsigned int) == 4)
+		return ((*(unsigned int *)(a)    ^ *(unsigned int *)(b))
+                      | (*(unsigned int *)(a+4)  ^ *(unsigned int *)(b+4))
+		      | (*(unsigned int *)(a+8)  ^ *(unsigned int *)(b+8))
+	              | (*(unsigned int *)(a+12) ^ *(unsigned int *)(b+12)));
+	else
+#endif /* CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS */
+		return ((*(unsigned char *)(a)    ^ *(unsigned char *)(b))
+		      | (*(unsigned char *)(a+1)  ^ *(unsigned char *)(b+1))
+		      | (*(unsigned char *)(a+2)  ^ *(unsigned char *)(b+2))
+		      | (*(unsigned char *)(a+3)  ^ *(unsigned char *)(b+3))
+		      | (*(unsigned char *)(a+4)  ^ *(unsigned char *)(b+4))
+		      | (*(unsigned char *)(a+5)  ^ *(unsigned char *)(b+5))
+		      | (*(unsigned char *)(a+6)  ^ *(unsigned char *)(b+6))
+		      | (*(unsigned char *)(a+7)  ^ *(unsigned char *)(b+7))
+		      | (*(unsigned char *)(a+8)  ^ *(unsigned char *)(b+8))
+		      | (*(unsigned char *)(a+9)  ^ *(unsigned char *)(b+9))
+		      | (*(unsigned char *)(a+10) ^ *(unsigned char *)(b+10))
+		      | (*(unsigned char *)(a+11) ^ *(unsigned char *)(b+11))
+		      | (*(unsigned char *)(a+12) ^ *(unsigned char *)(b+12))
+		      | (*(unsigned char *)(a+13) ^ *(unsigned char *)(b+13))
+		      | (*(unsigned char *)(a+14) ^ *(unsigned char *)(b+14))
+		      | (*(unsigned char *)(a+15) ^ *(unsigned char *)(b+15)));
+}
+
+/* Compare two areas of memory without leaking timing information,
+ * and with special optimizations for common sizes.  Users should
+ * not call this function directly, but should instead use
+ * crypto_memneq defined in crypto/algapi.h.
+ */
+noinline unsigned long __crypto_memneq(const void *a, const void *b,
+				       size_t size)
+{
+	switch (size) {
+	case 16:
+		return __crypto_memneq_16(a, b);
+	default:
+		return __crypto_memneq_generic(a, b, size);
+	}
+}
+EXPORT_SYMBOL(__crypto_memneq);
+
+#endif /* __HAVE_ARCH_CRYPTO_MEMNEQ */
diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index 418d270e1806..e73c19e90e38 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -386,5 +386,21 @@ static inline int crypto_requires_sync(u32 type, u32 mask)
 	return (type ^ CRYPTO_ALG_ASYNC) & mask & CRYPTO_ALG_ASYNC;
 }
 
-#endif	/* _CRYPTO_ALGAPI_H */
+noinline unsigned long __crypto_memneq(const void *a, const void *b, size_t size);
+
+/**
+ * crypto_memneq - Compare two areas of memory without leaking
+ *		   timing information.
+ *
+ * @a: One area of memory
+ * @b: Another area of memory
+ * @size: The size of the area.
+ *
+ * Returns 0 when data is equal, 1 otherwise.
+ */
+static inline int crypto_memneq(const void *a, const void *b, size_t size)
+{
+	return __crypto_memneq(a, b, size) != 0UL ? 1 : 0;
+}
 
+#endif	/* _CRYPTO_ALGAPI_H */
-- 
cgit 


From 1b0b2605a920e200d8adab29fc57ea9254a3f953 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 08:49:41 +0530
Subject: crypto: sahara - Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Javier Martin <javier.martin@vista-silicon.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/sahara.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/sahara.c b/drivers/crypto/sahara.c
index d7bb8bac36e9..785a9ded7bdf 100644
--- a/drivers/crypto/sahara.c
+++ b/drivers/crypto/sahara.c
@@ -1058,7 +1058,7 @@ static struct platform_driver sahara_driver = {
 	.driver		= {
 		.name	= SAHARA_NAME,
 		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(sahara_dt_ids),
+		.of_match_table = sahara_dt_ids,
 	},
 	.id_table = sahara_platform_ids,
 };
-- 
cgit 


From 165c70f07fee46abcbdbb885f8e90388dbe7ce60 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 08:49:42 +0530
Subject: crypto: mv_cesa - Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/mv_cesa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c
index f9b9560f64b4..2662d1b04c2a 100644
--- a/drivers/crypto/mv_cesa.c
+++ b/drivers/crypto/mv_cesa.c
@@ -1187,7 +1187,7 @@ static struct platform_driver marvell_crypto = {
 	.driver		= {
 		.owner	= THIS_MODULE,
 		.name	= "mv_crypto",
-		.of_match_table = of_match_ptr(mv_cesa_of_match_table),
+		.of_match_table = mv_cesa_of_match_table,
 	},
 };
 MODULE_ALIAS("platform:mv_crypto");
-- 
cgit 


From 16c0c4e1656c14ef9deac189a4240b5ca19c6919 Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oneukum@suse.de>
Date: Tue, 1 Oct 2013 14:34:46 +0200
Subject: crypto: sha256_ssse3 - also test for BMI2

The AVX2 implementation also uses BMI2 instructions,
but doesn't test for their availability. The assumption
that AVX2 and BMI2 always go together is false. Some
Haswells have AVX2 but not BMI2.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 arch/x86/crypto/sha256_ssse3_glue.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/crypto/sha256_ssse3_glue.c b/arch/x86/crypto/sha256_ssse3_glue.c
index 85021a4a8e0c..f248546da1ca 100644
--- a/arch/x86/crypto/sha256_ssse3_glue.c
+++ b/arch/x86/crypto/sha256_ssse3_glue.c
@@ -281,7 +281,7 @@ static int __init sha256_ssse3_mod_init(void)
 	/* allow AVX to override SSSE3, it's a little faster */
 	if (avx_usable()) {
 #ifdef CONFIG_AS_AVX2
-		if (boot_cpu_has(X86_FEATURE_AVX2))
+		if (boot_cpu_has(X86_FEATURE_AVX2) && boot_cpu_has(X86_FEATURE_BMI2))
 			sha256_transform_asm = sha256_transform_rorx;
 		else
 #endif
-- 
cgit 


From 5559435654776359679613f69f1c0a2895603a69 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 16:11:57 -0700
Subject: Bluetooth: Send new settings only when pairable changes

In case the current value of pairable is already configured, do not
send a new settings event indicating that something has changed while
in reality everything is the same.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 9702079833fc..3f628fd71b4e 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1188,6 +1188,7 @@ static int set_pairable(struct sock *sk, struct hci_dev *hdev, void *data,
 			u16 len)
 {
 	struct mgmt_mode *cp = data;
+	bool changed;
 	int err;
 
 	BT_DBG("request for %s", hdev->name);
@@ -1199,17 +1200,18 @@ static int set_pairable(struct sock *sk, struct hci_dev *hdev, void *data,
 	hci_dev_lock(hdev);
 
 	if (cp->val)
-		set_bit(HCI_PAIRABLE, &hdev->dev_flags);
+		changed = !test_and_set_bit(HCI_PAIRABLE, &hdev->dev_flags);
 	else
-		clear_bit(HCI_PAIRABLE, &hdev->dev_flags);
+		changed = test_and_clear_bit(HCI_PAIRABLE, &hdev->dev_flags);
 
 	err = send_settings_rsp(sk, MGMT_OP_SET_PAIRABLE, hdev);
 	if (err < 0)
-		goto failed;
+		goto unlock;
 
-	err = new_settings(hdev, sk);
+	if (changed)
+		err = new_settings(hdev, sk);
 
-failed:
+unlock:
 	hci_dev_unlock(hdev);
 	return err;
 }
-- 
cgit 


From 2b4ef839d6253e13f218f4782b1a5a595a15c747 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 6 Oct 2013 08:47:55 +0200
Subject: usb: host: uhci-platform: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/uhci-platform.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/usb/host/uhci-platform.c b/drivers/usb/host/uhci-platform.c
index d033a0ec7f0d..ded842bc6578 100644
--- a/drivers/usb/host/uhci-platform.c
+++ b/drivers/usb/host/uhci-platform.c
@@ -105,8 +105,7 @@ static int uhci_hcd_platform_probe(struct platform_device *pdev)
 
 	uhci->regs = hcd->regs;
 
-	ret = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_DISABLED |
-								IRQF_SHARED);
+	ret = usb_add_hcd(hcd, pdev->resource[1].start, IRQF_SHARED);
 	if (ret)
 		goto err_uhci;
 
-- 
cgit 


From afc3cba5395a9f46de7cd50ba0e54a70b1d7b2b1 Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Sun, 6 Oct 2013 13:48:47 -0500
Subject: usb: wusbcore: fix string formatting warnings on 64-bit builds

This patch fixes compile warnings on 64-bit builds that were introduced
by the recent isoc changes.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/wa-xfer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index e097da30a26b..fd00e1aaccf4 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -470,7 +470,7 @@ static ssize_t __wa_xfer_setup_sizes(struct wa_xfer *xfer,
 		xfer->segs = DIV_ROUND_UP(urb->transfer_buffer_length,
 						xfer->seg_size);
 		if (xfer->segs >= WA_SEGS_MAX) {
-			dev_err(dev, "BUG? oops, number of segments %d bigger than %d\n",
+			dev_err(dev, "BUG? oops, number of segments %zu bigger than %d\n",
 				(urb->transfer_buffer_length/xfer->seg_size),
 				WA_SEGS_MAX);
 			result = -EINVAL;
@@ -1920,7 +1920,7 @@ static void wa_process_iso_packet_status(struct wahc *wa, struct urb *urb)
 	dev_dbg(dev, "DTI: isoc packet status %d bytes at %p\n",
 		urb->actual_length, urb->transfer_buffer);
 	if (urb->actual_length != expected_size) {
-		dev_err(dev, "DTI Error: isoc packet status--bad urb length (%d bytes vs %zu needed)\n",
+		dev_err(dev, "DTI Error: isoc packet status--bad urb length (%d bytes vs %d needed)\n",
 			urb->actual_length, expected_size);
 		goto error_parse_buffer;
 	}
-- 
cgit 


From cae9160d9b074a75c5ae4b08a8552155b1607b9b Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 6 Oct 2013 08:44:35 +0200
Subject: usb: gadget: mv_u3d_core: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/mv_u3d_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/mv_u3d_core.c b/drivers/usb/gadget/mv_u3d_core.c
index 561b30efb8ee..5b06c989951c 100644
--- a/drivers/usb/gadget/mv_u3d_core.c
+++ b/drivers/usb/gadget/mv_u3d_core.c
@@ -1936,7 +1936,7 @@ static int mv_u3d_probe(struct platform_device *dev)
 	}
 	u3d->irq = r->start;
 	if (request_irq(u3d->irq, mv_u3d_irq,
-		IRQF_DISABLED | IRQF_SHARED, driver_name, u3d)) {
+		IRQF_SHARED, driver_name, u3d)) {
 		u3d->irq = 0;
 		dev_err(&dev->dev, "Request irq %d for u3d failed\n",
 			u3d->irq);
-- 
cgit 


From 5a3e2055c56c7c32b51d47bde78c7f7508ffea98 Mon Sep 17 00:00:00 2001
From: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Date: Sat, 5 Oct 2013 23:08:17 -0700
Subject: USB/host: Bugfix: Return length of copied buffer in
 uhci_hub_control()

In addition to the error statuses -ETIMEDOUT and -EPIPE, uhci_hub_control()
needs to return the length of copied buffer when appropriate, so that the
returned status of ->hub_control() in rh_call_control() in the USB core
HCD can be properly handled.

This patch also removes the OK() macro to make the code more readable.

Reviewed-by: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/uhci-hub.c | 40 ++++++++++++++++++++--------------------
 1 file changed, 20 insertions(+), 20 deletions(-)

diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c
index 9189bc984c98..93e17b12fb33 100644
--- a/drivers/usb/host/uhci-hub.c
+++ b/drivers/usb/host/uhci-hub.c
@@ -75,8 +75,6 @@ static inline int get_hub_status_data(struct uhci_hcd *uhci, char *buf)
 	return !!*buf;
 }
 
-#define OK(x)			len = (x); break
-
 #define CLR_RH_PORTSTAT(x) \
 	status = uhci_readw(uhci, port_addr);	\
 	status &= ~(RWC_BITS|WZ_BITS); \
@@ -244,7 +242,7 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 			u16 wIndex, char *buf, u16 wLength)
 {
 	struct uhci_hcd *uhci = hcd_to_uhci(hcd);
-	int status, lstatus, retval = 0, len = 0;
+	int status, lstatus, retval = 0;
 	unsigned int port = wIndex - 1;
 	unsigned long port_addr = USBPORTSC1 + 2 * port;
 	u16 wPortChange, wPortStatus;
@@ -258,7 +256,8 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 
 	case GetHubStatus:
 		*(__le32 *)buf = cpu_to_le32(0);
-		OK(4);		/* hub power */
+		retval = 4; /* hub power */
+		break;
 	case GetPortStatus:
 		if (port >= uhci->rh_numports)
 			goto err;
@@ -311,13 +310,14 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 
 		*(__le16 *)buf = cpu_to_le16(wPortStatus);
 		*(__le16 *)(buf + 2) = cpu_to_le16(wPortChange);
-		OK(4);
+		retval = 4;
+		break;
 	case SetHubFeature:		/* We don't implement these */
 	case ClearHubFeature:
 		switch (wValue) {
 		case C_HUB_OVER_CURRENT:
 		case C_HUB_LOCAL_POWER:
-			OK(0);
+			break;
 		default:
 			goto err;
 		}
@@ -329,7 +329,7 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 		switch (wValue) {
 		case USB_PORT_FEAT_SUSPEND:
 			SET_RH_PORTSTAT(USBPORTSC_SUSP);
-			OK(0);
+			break;
 		case USB_PORT_FEAT_RESET:
 			SET_RH_PORTSTAT(USBPORTSC_PR);
 
@@ -338,10 +338,10 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 
 			/* USB v2.0 7.1.7.5 */
 			uhci->ports_timeout = jiffies + msecs_to_jiffies(50);
-			OK(0);
+			break;
 		case USB_PORT_FEAT_POWER:
 			/* UHCI has no power switching */
-			OK(0);
+			break;
 		default:
 			goto err;
 		}
@@ -356,10 +356,10 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 
 			/* Disable terminates Resume signalling */
 			uhci_finish_suspend(uhci, port, port_addr);
-			OK(0);
+			break;
 		case USB_PORT_FEAT_C_ENABLE:
 			CLR_RH_PORTSTAT(USBPORTSC_PEC);
-			OK(0);
+			break;
 		case USB_PORT_FEAT_SUSPEND:
 			if (!(uhci_readw(uhci, port_addr) & USBPORTSC_SUSP)) {
 
@@ -382,32 +382,32 @@ static int uhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
 					uhci->ports_timeout = jiffies +
 						msecs_to_jiffies(20);
 			}
-			OK(0);
+			break;
 		case USB_PORT_FEAT_C_SUSPEND:
 			clear_bit(port, &uhci->port_c_suspend);
-			OK(0);
+			break;
 		case USB_PORT_FEAT_POWER:
 			/* UHCI has no power switching */
 			goto err;
 		case USB_PORT_FEAT_C_CONNECTION:
 			CLR_RH_PORTSTAT(USBPORTSC_CSC);
-			OK(0);
+			break;
 		case USB_PORT_FEAT_C_OVER_CURRENT:
 			CLR_RH_PORTSTAT(USBPORTSC_OCC);
-			OK(0);
+			break;
 		case USB_PORT_FEAT_C_RESET:
 			/* this driver won't report these */
-			OK(0);
+			break;
 		default:
 			goto err;
 		}
 		break;
 	case GetHubDescriptor:
-		len = min_t(unsigned int, sizeof(root_hub_hub_des), wLength);
-		memcpy(buf, root_hub_hub_des, len);
-		if (len > 2)
+		retval = min_t(unsigned int, sizeof(root_hub_hub_des), wLength);
+		memcpy(buf, root_hub_hub_des, retval);
+		if (retval > 2)
 			buf[2] = uhci->rh_numports;
-		OK(len);
+		break;
 	default:
 err:
 		retval = -EPIPE;
-- 
cgit 


From 5287bf726ff8a7353e883b73576710fd53dc88bb Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Sun, 6 Oct 2013 03:32:53 +0300
Subject: USB: cyberjack: fix buggy integer overflow test

"old_rdtodo" and "size" are short type.  They are type promoted to int
and the condition is never true.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/cyberjack.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c
index 781426230d69..6e1b69d0f5f5 100644
--- a/drivers/usb/serial/cyberjack.c
+++ b/drivers/usb/serial/cyberjack.c
@@ -279,7 +279,7 @@ static void cyberjack_read_int_callback(struct urb *urb)
 
 		old_rdtodo = priv->rdtodo;
 
-		if (old_rdtodo + size < old_rdtodo) {
+		if (old_rdtodo > SHRT_MAX - size) {
 			dev_dbg(dev, "To many bulk_in urbs to do.\n");
 			spin_unlock(&priv->lock);
 			goto resubmit;
-- 
cgit 


From cf81e054d63bca1da899057802e561abc2acecce Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 6 Oct 2013 08:30:17 +0200
Subject: serial: tegra: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/serial-tegra.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/serial-tegra.c b/drivers/tty/serial/serial-tegra.c
index 0489a2bdcdf9..dfe79ccc4fb3 100644
--- a/drivers/tty/serial/serial-tegra.c
+++ b/drivers/tty/serial/serial-tegra.c
@@ -1018,7 +1018,7 @@ static int tegra_uart_startup(struct uart_port *u)
 		goto fail_hw_init;
 	}
 
-	ret = request_irq(u->irq, tegra_uart_isr, IRQF_DISABLED,
+	ret = request_irq(u->irq, tegra_uart_isr, 0,
 				dev_name(u->dev), tup);
 	if (ret < 0) {
 		dev_err(u->dev, "Failed to register ISR for IRQ %d\n", u->irq);
-- 
cgit 


From 190c6cc32843844722a9897fac1929d57517db14 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 6 Oct 2013 08:27:18 +0200
Subject: serial: bfin_uart: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/bfin_uart.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/bfin_uart.c b/drivers/tty/serial/bfin_uart.c
index 74749a6d3565..8f9b3495ef5d 100644
--- a/drivers/tty/serial/bfin_uart.c
+++ b/drivers/tty/serial/bfin_uart.c
@@ -726,7 +726,7 @@ static int bfin_serial_startup(struct uart_port *port)
 #ifdef CONFIG_SERIAL_BFIN_HARD_CTSRTS
 	if (uart->cts_pin >= 0) {
 		if (request_irq(uart->status_irq, bfin_serial_mctrl_cts_int,
-			IRQF_DISABLED, "BFIN_UART_MODEM_STATUS", uart)) {
+			0, "BFIN_UART_MODEM_STATUS", uart)) {
 			uart->cts_pin = -1;
 			dev_info(port->dev, "Unable to attach BlackFin UART Modem Status interrupt.\n");
 		}
-- 
cgit 


From bf6b56db0acbe844c96fe36ab65eb7a53c6d8654 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 23:55:45 -0700
Subject: Bluetooth: Make mgmt_index_added() and mgmt_index_removed() return
 void

The return value from mgmt_index_added() and mgmt_index_removed()
functions is never used. So do not pretend that returning an error
would actually be handled and just make both functions return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h |  4 ++--
 net/bluetooth/mgmt.c             | 12 ++++++------
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index d80d4311ccb0..1e6f584d5149 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1092,8 +1092,8 @@ void hci_sock_dev_event(struct hci_dev *hdev, int event);
 #define DISCOV_BREDR_INQUIRY_LEN	0x08
 
 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
-int mgmt_index_added(struct hci_dev *hdev);
-int mgmt_index_removed(struct hci_dev *hdev);
+void mgmt_index_added(struct hci_dev *hdev);
+void mgmt_index_removed(struct hci_dev *hdev);
 int mgmt_set_powered_failed(struct hci_dev *hdev, int err);
 int mgmt_powered(struct hci_dev *hdev, u8 powered);
 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 3f628fd71b4e..811c41192ec7 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3782,24 +3782,24 @@ done:
 	return err;
 }
 
-int mgmt_index_added(struct hci_dev *hdev)
+void mgmt_index_added(struct hci_dev *hdev)
 {
 	if (hdev->dev_type != HCI_BREDR)
-		return -ENOTSUPP;
+		return;
 
-	return mgmt_event(MGMT_EV_INDEX_ADDED, hdev, NULL, 0, NULL);
+	mgmt_event(MGMT_EV_INDEX_ADDED, hdev, NULL, 0, NULL);
 }
 
-int mgmt_index_removed(struct hci_dev *hdev)
+void mgmt_index_removed(struct hci_dev *hdev)
 {
 	u8 status = MGMT_STATUS_INVALID_INDEX;
 
 	if (hdev->dev_type != HCI_BREDR)
-		return -ENOTSUPP;
+		return;
 
 	mgmt_pending_foreach(0, hdev, cmd_status_rsp, &status);
 
-	return mgmt_event(MGMT_EV_INDEX_REMOVED, hdev, NULL, 0, NULL);
+	mgmt_event(MGMT_EV_INDEX_REMOVED, hdev, NULL, 0, NULL);
 }
 
 static void set_bredr_scan(struct hci_request *req)
-- 
cgit 


From 3eec705e42d19b3d3e367fcb88693c24175bdbc6 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 23:55:46 -0700
Subject: Bluetooth: Make mgmt_set_powered_failed() return void

The return value of mgmt_set_powered_failed() function is never used
and so make the function just return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h | 2 +-
 net/bluetooth/mgmt.c             | 8 +++-----
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 1e6f584d5149..62e2fc1bc7cc 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1094,7 +1094,7 @@ void hci_sock_dev_event(struct hci_dev *hdev, int event);
 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
 void mgmt_index_added(struct hci_dev *hdev);
 void mgmt_index_removed(struct hci_dev *hdev);
-int mgmt_set_powered_failed(struct hci_dev *hdev, int err);
+void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
 int mgmt_powered(struct hci_dev *hdev, u8 powered);
 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
 int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 811c41192ec7..5da7464e57a5 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3934,25 +3934,23 @@ new_settings:
 	return err;
 }
 
-int mgmt_set_powered_failed(struct hci_dev *hdev, int err)
+void mgmt_set_powered_failed(struct hci_dev *hdev, int err)
 {
 	struct pending_cmd *cmd;
 	u8 status;
 
 	cmd = mgmt_pending_find(MGMT_OP_SET_POWERED, hdev);
 	if (!cmd)
-		return -ENOENT;
+		return;
 
 	if (err == -ERFKILL)
 		status = MGMT_STATUS_RFKILLED;
 	else
 		status = MGMT_STATUS_FAILED;
 
-	err = cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_POWERED, status);
+	cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_POWERED, status);
 
 	mgmt_pending_remove(cmd);
-
-	return err;
 }
 
 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable)
-- 
cgit 


From 7892924c7d5d74be8ad52316000a78fe96379044 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 23:55:47 -0700
Subject: Bluetooth: Make mgmt_disconnect_failed() return void

The return value of mgmt_disconnect_failed() function is not used
so change it to just return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h |  4 ++--
 net/bluetooth/mgmt.c             | 13 +++++--------
 2 files changed, 7 insertions(+), 10 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 62e2fc1bc7cc..429969fdb9f3 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1106,8 +1106,8 @@ int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 			  u8 *dev_class);
 int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
 			     u8 link_type, u8 addr_type, u8 reason);
-int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
-			   u8 link_type, u8 addr_type, u8 status);
+void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
+			    u8 link_type, u8 addr_type, u8 status);
 int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 			u8 addr_type, u8 status);
 int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 5da7464e57a5..a35f28e9172e 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4143,29 +4143,26 @@ int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
 	return err;
 }
 
-int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
-			   u8 link_type, u8 addr_type, u8 status)
+void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
+			    u8 link_type, u8 addr_type, u8 status)
 {
 	struct mgmt_rp_disconnect rp;
 	struct pending_cmd *cmd;
-	int err;
 
 	mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp,
 			     hdev);
 
 	cmd = mgmt_pending_find(MGMT_OP_DISCONNECT, hdev);
 	if (!cmd)
-		return -ENOENT;
+		return;
 
 	bacpy(&rp.addr.bdaddr, bdaddr);
 	rp.addr.type = link_to_bdaddr(link_type, addr_type);
 
-	err = cmd_complete(cmd->sk, cmd->index, MGMT_OP_DISCONNECT,
-			   mgmt_status(status), &rp, sizeof(rp));
+	cmd_complete(cmd->sk, cmd->index, MGMT_OP_DISCONNECT,
+		     mgmt_status(status), &rp, sizeof(rp));
 
 	mgmt_pending_remove(cmd);
-
-	return err;
 }
 
 int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-- 
cgit 


From 445608d078bf7f7fe975792a940ffac83f495fa9 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 23:55:48 -0700
Subject: Bluetooth: Make mgmt_connect_failed() return void

The return value of mgmt_connect_failed() function is not used
so change it to just return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h | 4 ++--
 net/bluetooth/mgmt.c             | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 429969fdb9f3..d982458a96e3 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1108,8 +1108,8 @@ int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
 			     u8 link_type, u8 addr_type, u8 reason);
 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
 			    u8 link_type, u8 addr_type, u8 status);
-int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-			u8 addr_type, u8 status);
+void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+			 u8 addr_type, u8 status);
 int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
 int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
 				 u8 status);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index a35f28e9172e..bd32c430cdfe 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4165,8 +4165,8 @@ void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
 	mgmt_pending_remove(cmd);
 }
 
-int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-			u8 addr_type, u8 status)
+void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+			 u8 addr_type, u8 status)
 {
 	struct mgmt_ev_connect_failed ev;
 
@@ -4174,7 +4174,7 @@ int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 	ev.addr.type = link_to_bdaddr(link_type, addr_type);
 	ev.status = mgmt_status(status);
 
-	return mgmt_event(MGMT_EV_CONNECT_FAILED, hdev, &ev, sizeof(ev), NULL);
+	mgmt_event(MGMT_EV_CONNECT_FAILED, hdev, &ev, sizeof(ev), NULL);
 }
 
 int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure)
-- 
cgit 


From ecd90ae7f600270d68b471f87c66d5b41ce5a974 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 23:55:49 -0700
Subject: Bluetooth: Make mgmt_device_connected() return void

The return value of mgmt_device_connected() function is not used
and so just change it to return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h |  6 +++---
 net/bluetooth/mgmt.c             | 10 +++++-----
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index d982458a96e3..48569442ec17 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1101,9 +1101,9 @@ int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
 int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
 int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
 		      bool persistent);
-int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-			  u8 addr_type, u32 flags, u8 *name, u8 name_len,
-			  u8 *dev_class);
+void mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+			   u8 addr_type, u32 flags, u8 *name, u8 name_len,
+			   u8 *dev_class);
 int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
 			     u8 link_type, u8 addr_type, u8 reason);
 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index bd32c430cdfe..9029e67b3341 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4056,9 +4056,9 @@ int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent)
 			  NULL);
 }
 
-int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-			  u8 addr_type, u32 flags, u8 *name, u8 name_len,
-			  u8 *dev_class)
+void mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+			   u8 addr_type, u32 flags, u8 *name, u8 name_len,
+			   u8 *dev_class)
 {
 	char buf[512];
 	struct mgmt_ev_device_connected *ev = (void *) buf;
@@ -4079,8 +4079,8 @@ int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 
 	ev->eir_len = cpu_to_le16(eir_len);
 
-	return mgmt_event(MGMT_EV_DEVICE_CONNECTED, hdev, buf,
-			  sizeof(*ev) + eir_len, NULL);
+	mgmt_event(MGMT_EV_DEVICE_CONNECTED, hdev, buf,
+		    sizeof(*ev) + eir_len, NULL);
 }
 
 static void disconnect_rsp(struct pending_cmd *cmd, void *data)
-- 
cgit 


From 9b80ec5e8e66ada404ad65ce61a1de70fee0fbbd Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 23:55:50 -0700
Subject: Bluetooth: Make mgmt_device_disconnected() return void

The return value of mgmt_device_disconnected() function is not used
and so just change it to return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h |  4 ++--
 net/bluetooth/mgmt.c             | 10 +++-------
 2 files changed, 5 insertions(+), 9 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 48569442ec17..2b0bc31ec785 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1104,8 +1104,8 @@ int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
 void mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 			   u8 addr_type, u32 flags, u8 *name, u8 name_len,
 			   u8 *dev_class);
-int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
-			     u8 link_type, u8 addr_type, u8 reason);
+void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
+			      u8 link_type, u8 addr_type, u8 reason);
 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
 			    u8 link_type, u8 addr_type, u8 status);
 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 9029e67b3341..b9cd5829672e 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4118,12 +4118,11 @@ static void unpair_device_rsp(struct pending_cmd *cmd, void *data)
 	mgmt_pending_remove(cmd);
 }
 
-int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
-			     u8 link_type, u8 addr_type, u8 reason)
+void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
+			      u8 link_type, u8 addr_type, u8 reason)
 {
 	struct mgmt_ev_device_disconnected ev;
 	struct sock *sk = NULL;
-	int err;
 
 	mgmt_pending_foreach(MGMT_OP_DISCONNECT, hdev, disconnect_rsp, &sk);
 
@@ -4131,16 +4130,13 @@ int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
 	ev.addr.type = link_to_bdaddr(link_type, addr_type);
 	ev.reason = reason;
 
-	err = mgmt_event(MGMT_EV_DEVICE_DISCONNECTED, hdev, &ev, sizeof(ev),
-			 sk);
+	mgmt_event(MGMT_EV_DEVICE_DISCONNECTED, hdev, &ev, sizeof(ev), sk);
 
 	if (sk)
 		sock_put(sk);
 
 	mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp,
 			     hdev);
-
-	return err;
 }
 
 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
-- 
cgit 


From 901801b9a420e58969e039731dd007ae104842d3 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 23:55:51 -0700
Subject: Bluetooth: Make mgmt_device_found() return void

The return value of mgmt_device_found() function is not used
and so just change it to return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h |  6 +++---
 net/bluetooth/mgmt.c             | 12 ++++++------
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 2b0bc31ec785..5b738a2d1786 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1140,9 +1140,9 @@ int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
 int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
 int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
 					    u8 *randomizer, u8 status);
-int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-		      u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name,
-		      u8 ssp, u8 *eir, u16 eir_len);
+void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+		       u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name,
+		       u8 ssp, u8 *eir, u16 eir_len);
 int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 		     u8 addr_type, s8 rssi, u8 *name, u8 name_len);
 int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index b9cd5829672e..abf500b3b265 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4524,20 +4524,20 @@ int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
 	return err;
 }
 
-int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-		      u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name, u8
-		      ssp, u8 *eir, u16 eir_len)
+void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+		       u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name, u8
+		       ssp, u8 *eir, u16 eir_len)
 {
 	char buf[512];
 	struct mgmt_ev_device_found *ev = (void *) buf;
 	size_t ev_size;
 
 	if (!hci_discovery_active(hdev))
-		return -EPERM;
+		return;
 
 	/* Leave 5 bytes for a potential CoD field */
 	if (sizeof(*ev) + eir_len + 5 > sizeof(buf))
-		return -EINVAL;
+		return;
 
 	memset(buf, 0, sizeof(buf));
 
@@ -4559,7 +4559,7 @@ int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 	ev->eir_len = cpu_to_le16(eir_len);
 	ev_size = sizeof(*ev) + eir_len;
 
-	return mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, ev_size, NULL);
+	mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, ev_size, NULL);
 }
 
 int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-- 
cgit 


From 9cf12aee8bf5eb219c79089fb4556ad1d2066585 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 23:55:52 -0700
Subject: Bluetooth: Make mgmt_remote_name() return void

The return value of mgmt_remote_name() function is not used
and so just change it to return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h | 4 ++--
 net/bluetooth/mgmt.c             | 7 +++----
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 5b738a2d1786..960c64b92415 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1143,8 +1143,8 @@ int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 		       u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name,
 		       u8 ssp, u8 *eir, u16 eir_len);
-int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-		     u8 addr_type, s8 rssi, u8 *name, u8 name_len);
+void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+		      u8 addr_type, s8 rssi, u8 *name, u8 name_len);
 int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
 int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
 int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index abf500b3b265..4a4545e1e44d 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4562,8 +4562,8 @@ void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 	mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, ev_size, NULL);
 }
 
-int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-		     u8 addr_type, s8 rssi, u8 *name, u8 name_len)
+void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+		      u8 addr_type, s8 rssi, u8 *name, u8 name_len)
 {
 	struct mgmt_ev_device_found *ev;
 	char buf[sizeof(*ev) + HCI_MAX_NAME_LENGTH + 2];
@@ -4582,8 +4582,7 @@ int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 
 	ev->eir_len = cpu_to_le16(eir_len);
 
-	return mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev,
-			  sizeof(*ev) + eir_len, NULL);
+	mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, sizeof(*ev) + eir_len, NULL);
 }
 
 int mgmt_discovering(struct hci_dev *hdev, u8 discovering)
-- 
cgit 


From 2f1e063bc035dbbdb9174cc5f55f073a28780aa8 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 6 Oct 2013 23:55:53 -0700
Subject: Bluetooth: Make mgmt_discovering() return void

The return value of mgmt_discovering() function is not used
and so just change it to return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h | 2 +-
 net/bluetooth/mgmt.c             | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 960c64b92415..c06552769644 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1145,7 +1145,7 @@ void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 		       u8 ssp, u8 *eir, u16 eir_len);
 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 		      u8 addr_type, s8 rssi, u8 *name, u8 name_len);
-int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
+void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
 int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
 int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
 int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 4a4545e1e44d..4070bb05d304 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4585,7 +4585,7 @@ void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 	mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, sizeof(*ev) + eir_len, NULL);
 }
 
-int mgmt_discovering(struct hci_dev *hdev, u8 discovering)
+void mgmt_discovering(struct hci_dev *hdev, u8 discovering)
 {
 	struct mgmt_ev_discovering ev;
 	struct pending_cmd *cmd;
@@ -4609,7 +4609,7 @@ int mgmt_discovering(struct hci_dev *hdev, u8 discovering)
 	ev.type = hdev->discovery.type;
 	ev.discovering = discovering;
 
-	return mgmt_event(MGMT_EV_DISCOVERING, hdev, &ev, sizeof(ev), NULL);
+	mgmt_event(MGMT_EV_DISCOVERING, hdev, &ev, sizeof(ev), NULL);
 }
 
 int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
-- 
cgit 


From 004b02589c5394a75660a00829086460cc3e4366 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 7 Oct 2013 00:58:32 -0700
Subject: Bluetooth: Power off AMP controllers after setup phase

Even AMP controllers should be powered off after the setup phase. It
is not a good idea to keep AMP controllers powered on all the time
if they are not in use.

Power on of the AMP controller can either be done manually via
command line commands or directly via A2MP. Especially since there
is an indication in A2MP for powered down controllers that can
be activated.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index d9626aad7ade..2ee5a8ee75c5 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2356,9 +2356,9 @@ int hci_register_dev(struct hci_dev *hdev)
 		set_bit(HCI_RFKILLED, &hdev->dev_flags);
 
 	set_bit(HCI_SETUP, &hdev->dev_flags);
+	set_bit(HCI_AUTO_OFF, &hdev->dev_flags);
 
 	if (hdev->dev_type == HCI_BREDR) {
-		set_bit(HCI_AUTO_OFF, &hdev->dev_flags);
 		/* Assume BR/EDR support until proven otherwise (such as
 		 * through reading supported features during init.
 		 */
-- 
cgit 


From 93c311a044442db62717ae509e09047f34dc3583 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 7 Oct 2013 00:58:33 -0700
Subject: Bluetooth: Make mgmt power down notification for BR/EDR explicit

The management interface only operates on BR/EDR controllers. The check
for the power down notification is a bit intermixed with the check if
controller auto power off is active. Since there are more than just
BR/EDR controllers supported, make this check explicit since the auto
power off check also applies to AMP controllers and it has to happen
in this exact order. Otherwise the bit will not be cleared.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 2ee5a8ee75c5..3572611c0297 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1393,11 +1393,12 @@ static int hci_dev_do_close(struct hci_dev *hdev)
 	hdev->flags = 0;
 	hdev->dev_flags &= ~HCI_PERSISTENT_MASK;
 
-	if (!test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags) &&
-	    hdev->dev_type == HCI_BREDR) {
-		hci_dev_lock(hdev);
-		mgmt_powered(hdev, 0);
-		hci_dev_unlock(hdev);
+	if (!test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) {
+		if (hdev->dev_type == HCI_BREDR) {
+			hci_dev_lock(hdev);
+			mgmt_powered(hdev, 0);
+			hci_dev_unlock(hdev);
+		}
 	}
 
 	/* Controller radio is available but is currently powered down */
-- 
cgit 


From cd0a85c22cd39f040ef4cff07a6c249bf1023137 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 7 Oct 2013 00:58:34 -0700
Subject: Bluetooth: List powered down AMP controllers correctly

Within the AMP discover response, list powered down AMP controllers
as powered down. No point in trying to make them look any different.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/a2mp.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 9410e272d8b6..b38d07477c20 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -89,7 +89,10 @@ static void __a2mp_add_cl(struct amp_mgr *mgr, struct a2mp_cl *cl)
 		if (hdev->dev_type == HCI_AMP) {
 			cl[i].id = hdev->id;
 			cl[i].type = hdev->amp_type;
-			cl[i].status = hdev->amp_status;
+			if (test_bit(HCI_UP, &hdev->flags))
+				cl[i].status = hdev->amp_status;
+			else
+				cl[i].status = AMP_STATUS_POWERED_DOWN;
 			i++;
 		}
 	}
-- 
cgit 


From 93721039903eab4a3d406e6fb095e2598093bc9c Mon Sep 17 00:00:00 2001
From: Eldad Zack <eldad@fogrefinery.com>
Date: Sun, 6 Oct 2013 22:31:06 +0200
Subject: ALSA: usb-audio: remove unused parameter from sync_ep_set_params

Since the format is not actually used in sync_ep_set_params(),
there is no need to pass it down.

Signed-off-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/endpoint.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index 21dc6422d747..5dd51af0525a 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -714,8 +714,7 @@ out_of_memory:
 /*
  * configure a sync endpoint
  */
-static int sync_ep_set_params(struct snd_usb_endpoint *ep,
-			      struct audioformat *fmt)
+static int sync_ep_set_params(struct snd_usb_endpoint *ep)
 {
 	int i;
 
@@ -812,7 +811,7 @@ int snd_usb_endpoint_set_params(struct snd_usb_endpoint *ep,
 					 buffer_periods, fmt, sync_ep);
 		break;
 	case  SND_USB_ENDPOINT_TYPE_SYNC:
-		err = sync_ep_set_params(ep, fmt);
+		err = sync_ep_set_params(ep);
 		break;
 	default:
 		err = -EINVAL;
-- 
cgit 


From 26de5d0a8df0817a58422f6ad43019c47716ce1f Mon Sep 17 00:00:00 2001
From: Eldad Zack <eldad@fogrefinery.com>
Date: Sun, 6 Oct 2013 22:31:07 +0200
Subject: ALSA: usb-audio: remove deactivate_endpoints()

The only call site for deactivate_endpoints() at snd_usb_hw_free().
The return value is not checked there, as it is irrelevant if it
fails on hw_free.
This patch moves the deactivation of the endpoints directly into
snd_usb_hw_free().

Signed-off-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/pcm.c | 19 ++-----------------
 1 file changed, 2 insertions(+), 17 deletions(-)

diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index 19e79953f2e3..1a9a01853688 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -282,22 +282,6 @@ static void stop_endpoints(struct snd_usb_substream *subs, bool wait)
 	}
 }
 
-static int deactivate_endpoints(struct snd_usb_substream *subs)
-{
-	int reta, retb;
-
-	reta = snd_usb_endpoint_deactivate(subs->sync_endpoint);
-	retb = snd_usb_endpoint_deactivate(subs->data_endpoint);
-
-	if (reta < 0)
-		return reta;
-
-	if (retb < 0)
-		return retb;
-
-	return 0;
-}
-
 static int search_roland_implicit_fb(struct usb_device *dev, int ifnum,
 				     unsigned int altsetting,
 				     struct usb_host_interface **alts,
@@ -736,7 +720,8 @@ static int snd_usb_hw_free(struct snd_pcm_substream *substream)
 	down_read(&subs->stream->chip->shutdown_rwsem);
 	if (!subs->stream->chip->shutdown) {
 		stop_endpoints(subs, true);
-		deactivate_endpoints(subs);
+		snd_usb_endpoint_deactivate(subs->sync_endpoint);
+		snd_usb_endpoint_deactivate(subs->data_endpoint);
 	}
 	up_read(&subs->stream->chip->shutdown_rwsem);
 	return snd_pcm_lib_free_vmalloc_buffer(substream);
-- 
cgit 


From 239b9f7990873d851335ed23fa091ce1484a5bcc Mon Sep 17 00:00:00 2001
From: Eldad Zack <eldad@fogrefinery.com>
Date: Sun, 6 Oct 2013 22:31:09 +0200
Subject: ALSA: usb-audio: don't deactivate URBs on in-use EP

If an endpoint in use, its associated URBs should not be
deactivated.

Signed-off-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/endpoint.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index 5dd51af0525a..e84732c874cb 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -959,12 +959,12 @@ int snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep)
 	if (!ep)
 		return -EINVAL;
 
-	deactivate_urbs(ep, true);
-	wait_clear_urbs(ep);
-
 	if (ep->use_count != 0)
 		return 0;
 
+	deactivate_urbs(ep, true);
+	wait_clear_urbs(ep);
+
 	clear_bit(EP_FLAG_ACTIVATED, &ep->flags);
 
 	return 0;
-- 
cgit 


From 9b7c552bba88748001574925b80ba520691b0e4d Mon Sep 17 00:00:00 2001
From: Eldad Zack <eldad@fogrefinery.com>
Date: Sun, 6 Oct 2013 22:31:10 +0200
Subject: ALSA: usb-audio: void return type of snd_usb_endpoint_deactivate()

The return value of snd_usb_endpoint_deactivate() is not used,
make the function have no return value.
Update the documentation to reflect what the function is actually
doing.

Signed-off-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/endpoint.c | 15 +++++----------
 sound/usb/endpoint.h |  2 +-
 2 files changed, 6 insertions(+), 11 deletions(-)

diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index e84732c874cb..26856601422b 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -946,28 +946,23 @@ void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep)
  *
  * @ep: the endpoint to deactivate
  *
- * If the endpoint is not currently in use, this functions will select the
- * alternate interface setting 0 for the interface of this endpoint.
+ * If the endpoint is not currently in use, this functions will
+ * deactivate its associated URBs.
  *
  * In case of any active users, this functions does nothing.
- *
- * Returns an error if usb_set_interface() failed, 0 in all other
- * cases.
  */
-int snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep)
+void snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep)
 {
 	if (!ep)
-		return -EINVAL;
+		return;
 
 	if (ep->use_count != 0)
-		return 0;
+		return;
 
 	deactivate_urbs(ep, true);
 	wait_clear_urbs(ep);
 
 	clear_bit(EP_FLAG_ACTIVATED, &ep->flags);
-
-	return 0;
 }
 
 /**
diff --git a/sound/usb/endpoint.h b/sound/usb/endpoint.h
index 3bd02f0d226c..1c7e8ee48abc 100644
--- a/sound/usb/endpoint.h
+++ b/sound/usb/endpoint.h
@@ -22,7 +22,7 @@ int  snd_usb_endpoint_start(struct snd_usb_endpoint *ep, bool can_sleep);
 void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep);
 void snd_usb_endpoint_sync_pending_stop(struct snd_usb_endpoint *ep);
 int  snd_usb_endpoint_activate(struct snd_usb_endpoint *ep);
-int  snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep);
+void snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep);
 void snd_usb_endpoint_free(struct list_head *head);
 
 int snd_usb_endpoint_implicit_feedback_sink(struct snd_usb_endpoint *ep);
-- 
cgit 


From 06613f547a4f62c2201f70b24807d9edd4d733b0 Mon Sep 17 00:00:00 2001
From: Eldad Zack <eldad@fogrefinery.com>
Date: Sun, 6 Oct 2013 22:31:11 +0200
Subject: ALSA: usb-audio: clear SUBSTREAM_FLAG_SYNC_EP_STARTED on error

If setting the interface fails, the SUBSTREAM_FLAG_SYNC_EP_STARTED
should be cleared.

Signed-off-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/pcm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index 1a9a01853688..0c1a95dd5538 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -246,6 +246,7 @@ static int start_endpoints(struct snd_usb_substream *subs, bool can_sleep)
 						subs->sync_endpoint->iface,
 						subs->sync_endpoint->alt_idx);
 			if (err < 0) {
+				clear_bit(SUBSTREAM_FLAG_SYNC_EP_STARTED, &subs->flags);
 				snd_printk(KERN_ERR
 					   "%d:%d:%d: cannot set interface (%d)\n",
 					   subs->dev->devnum,
-- 
cgit 


From df23a2466a4961092625b487ead60f526e401062 Mon Sep 17 00:00:00 2001
From: Eldad Zack <eldad@fogrefinery.com>
Date: Sun, 6 Oct 2013 22:31:13 +0200
Subject: ALSA: usb-audio: rename alt_idx to altsetting

As Clemens Ladisch kindly explained:
 "Please note that there are two methods to identify alternate settings:
  the number, which is the value in bAlternateSetting, and the index,
  which is the index in the descriptor array.  There might be some wording
  in the USB spec that these two values must be the same, but in reality,
  [insert standard rant about firmware writers], bAlternateSetting
  must be treated as a random ID value."

This patch changes the name to express the correct usage semantics.
No functional change.

Signed-off-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/card.h     | 2 +-
 sound/usb/endpoint.c | 6 +++---
 sound/usb/pcm.c      | 6 +++---
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/sound/usb/card.h b/sound/usb/card.h
index ca98a9b915c9..9867ab866857 100644
--- a/sound/usb/card.h
+++ b/sound/usb/card.h
@@ -96,7 +96,7 @@ struct snd_usb_endpoint {
 	unsigned int syncinterval;	/* P for adaptive mode, 0 otherwise */
 	unsigned char silence_value;
 	unsigned int stride;
-	int iface, alt_idx;
+	int iface, altsetting;
 	int skip_packets;		/* quirks for devices to ignore the first n packets
 					   in a stream */
 
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index 26856601422b..e25e32a8824d 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -426,9 +426,9 @@ struct snd_usb_endpoint *snd_usb_add_endpoint(struct snd_usb_audio *chip,
 	list_for_each_entry(ep, &chip->ep_list, list) {
 		if (ep->ep_num == ep_num &&
 		    ep->iface == alts->desc.bInterfaceNumber &&
-		    ep->alt_idx == alts->desc.bAlternateSetting) {
+		    ep->altsetting == alts->desc.bAlternateSetting) {
 			snd_printdd(KERN_DEBUG "Re-using EP %x in iface %d,%d @%p\n",
-					ep_num, ep->iface, ep->alt_idx, ep);
+					ep_num, ep->iface, ep->altsetting, ep);
 			goto __exit_unlock;
 		}
 	}
@@ -447,7 +447,7 @@ struct snd_usb_endpoint *snd_usb_add_endpoint(struct snd_usb_audio *chip,
 	ep->type = type;
 	ep->ep_num = ep_num;
 	ep->iface = alts->desc.bInterfaceNumber;
-	ep->alt_idx = alts->desc.bAlternateSetting;
+	ep->altsetting = alts->desc.bAlternateSetting;
 	INIT_LIST_HEAD(&ep->ready_playback_urbs);
 	ep_num &= USB_ENDPOINT_NUMBER_MASK;
 
diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c
index 0c1a95dd5538..ca3256d6fde3 100644
--- a/sound/usb/pcm.c
+++ b/sound/usb/pcm.c
@@ -241,17 +241,17 @@ static int start_endpoints(struct snd_usb_substream *subs, bool can_sleep)
 		struct snd_usb_endpoint *ep = subs->sync_endpoint;
 
 		if (subs->data_endpoint->iface != subs->sync_endpoint->iface ||
-		    subs->data_endpoint->alt_idx != subs->sync_endpoint->alt_idx) {
+		    subs->data_endpoint->altsetting != subs->sync_endpoint->altsetting) {
 			err = usb_set_interface(subs->dev,
 						subs->sync_endpoint->iface,
-						subs->sync_endpoint->alt_idx);
+						subs->sync_endpoint->altsetting);
 			if (err < 0) {
 				clear_bit(SUBSTREAM_FLAG_SYNC_EP_STARTED, &subs->flags);
 				snd_printk(KERN_ERR
 					   "%d:%d:%d: cannot set interface (%d)\n",
 					   subs->dev->devnum,
 					   subs->sync_endpoint->iface,
-					   subs->sync_endpoint->alt_idx, err);
+					   subs->sync_endpoint->altsetting, err);
 				return -EIO;
 			}
 		}
-- 
cgit 


From 05c79b772f0236b857abf8034d9b0af2ecae901c Mon Sep 17 00:00:00 2001
From: Eldad Zack <eldad@fogrefinery.com>
Date: Sun, 6 Oct 2013 22:31:17 +0200
Subject: ALSA: usb-audio: remove unused endpoint flag EP_FLAG_ACTIVATED

EP_FLAG_ACTIVATED is never tested for, remove it.

Signed-off-by: Eldad Zack <eldad@fogrefinery.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/endpoint.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index e25e32a8824d..b9ba0fcc45df 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -33,7 +33,6 @@
 #include "pcm.h"
 #include "quirks.h"
 
-#define EP_FLAG_ACTIVATED	0
 #define EP_FLAG_RUNNING		1
 #define EP_FLAG_STOPPING	2
 
@@ -961,8 +960,6 @@ void snd_usb_endpoint_deactivate(struct snd_usb_endpoint *ep)
 
 	deactivate_urbs(ep, true);
 	wait_clear_urbs(ep);
-
-	clear_bit(EP_FLAG_ACTIVATED, &ep->flags);
 }
 
 /**
-- 
cgit 


From 3b3a80019ff194e86e740ec2f013a8915efd1ccf Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Wed, 2 Oct 2013 16:45:25 +0200
Subject: spi: ti-qspi: one only one interrupt handler

The here used irq and threaded irq handler is a complete non-sense. After
the status register is read and the source disabled it schedules a thread
(the irq thread) to read the status from the variable, invoke complete()
and then renable the interrupt. Again: schedule a thread which invokes
_only_ complete().
This patch removes this non-sense and we remain with one handler which
invokes complete() if needed.
The device remove path should now disable the interupts.
This has been compile time tested.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-ti-qspi.c | 39 ++++++---------------------------------
 1 file changed, 6 insertions(+), 33 deletions(-)

diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c
index 7a45c3e665f8..a61aeb9bb823 100644
--- a/drivers/spi/spi-ti-qspi.c
+++ b/drivers/spi/spi-ti-qspi.c
@@ -41,9 +41,6 @@ struct ti_qspi_regs {
 struct ti_qspi {
 	struct completion       transfer_complete;
 
-	/* IRQ synchronization */
-	spinlock_t              lock;
-
 	/* list synchronization */
 	struct mutex            list_lock;
 
@@ -57,7 +54,6 @@ struct ti_qspi {
 	u32 spi_max_frequency;
 	u32 cmd;
 	u32 dc;
-	u32 stat;
 };
 
 #define QSPI_PID			(0x0)
@@ -397,13 +393,12 @@ static irqreturn_t ti_qspi_isr(int irq, void *dev_id)
 {
 	struct ti_qspi *qspi = dev_id;
 	u16 int_stat;
+	u32 stat;
 
 	irqreturn_t ret = IRQ_HANDLED;
 
-	spin_lock(&qspi->lock);
-
 	int_stat = ti_qspi_read(qspi, QSPI_INTR_STATUS_ENABLED_CLEAR);
-	qspi->stat = ti_qspi_read(qspi, QSPI_SPI_STATUS_REG);
+	stat = ti_qspi_read(qspi, QSPI_SPI_STATUS_REG);
 
 	if (!int_stat) {
 		dev_dbg(qspi->dev, "No IRQ triggered\n");
@@ -411,35 +406,14 @@ static irqreturn_t ti_qspi_isr(int irq, void *dev_id)
 		goto out;
 	}
 
-	ret = IRQ_WAKE_THREAD;
-
-	ti_qspi_write(qspi, QSPI_WC_INT_DISABLE, QSPI_INTR_ENABLE_CLEAR_REG);
 	ti_qspi_write(qspi, QSPI_WC_INT_DISABLE,
 				QSPI_INTR_STATUS_ENABLED_CLEAR);
-
+	if (stat & WC)
+		complete(&qspi->transfer_complete);
 out:
-	spin_unlock(&qspi->lock);
-
 	return ret;
 }
 
-static irqreturn_t ti_qspi_threaded_isr(int this_irq, void *dev_id)
-{
-	struct ti_qspi *qspi = dev_id;
-	unsigned long flags;
-
-	spin_lock_irqsave(&qspi->lock, flags);
-
-	if (qspi->stat & WC)
-		complete(&qspi->transfer_complete);
-
-	spin_unlock_irqrestore(&qspi->lock, flags);
-
-	ti_qspi_write(qspi, QSPI_WC_INT_EN, QSPI_INTR_ENABLE_SET_REG);
-
-	return IRQ_HANDLED;
-}
-
 static int ti_qspi_runtime_resume(struct device *dev)
 {
 	struct ti_qspi      *qspi;
@@ -499,7 +473,6 @@ static int ti_qspi_probe(struct platform_device *pdev)
 		return irq;
 	}
 
-	spin_lock_init(&qspi->lock);
 	mutex_init(&qspi->list_lock);
 
 	qspi->base = devm_ioremap_resource(&pdev->dev, r);
@@ -508,8 +481,7 @@ static int ti_qspi_probe(struct platform_device *pdev)
 		goto free_master;
 	}
 
-	ret = devm_request_threaded_irq(&pdev->dev, irq, ti_qspi_isr,
-			ti_qspi_threaded_isr, 0,
+	ret = devm_request_irq(&pdev->dev, irq, ti_qspi_isr, 0,
 			dev_name(&pdev->dev), qspi);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Failed to register ISR for IRQ %d\n",
@@ -547,6 +519,7 @@ static int ti_qspi_remove(struct platform_device *pdev)
 {
 	struct	ti_qspi *qspi = platform_get_drvdata(pdev);
 
+	ti_qspi_write(qspi, QSPI_WC_INT_DISABLE, QSPI_INTR_ENABLE_CLEAR_REG);
 	spi_unregister_master(qspi->master);
 
 	return 0;
-- 
cgit 


From da83fea6122ea637be5f960b95bb599561617319 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 5 Oct 2013 19:26:17 +0200
Subject: ASoC: dapm: Ignore VMID widgets for target bias

VMID widgets behave very similar to signal generator widgets. Both are always
considered to be powered up. This means that we need to ignore the VMID widgets
in the same way as signal generator widgets when calculating the DAPM context's
target bias level. Otherwise the presence of a VMID widget, regardless whether
it is on an active path or not, will cause the DAPM context to be powered up.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/soc-dapm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index c17c14c394df..177f8a1938da 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -1840,6 +1840,7 @@ static int dapm_power_widgets(struct snd_soc_card *card, int event)
 			 */
 			switch (w->id) {
 			case snd_soc_dapm_siggen:
+			case snd_soc_dapm_vmid:
 				break;
 			case snd_soc_dapm_supply:
 			case snd_soc_dapm_regulator_supply:
-- 
cgit 


From 56cac413dd6d43af8355f5d1f90a199b540f73fc Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@iki.fi>
Date: Sat, 5 Oct 2013 02:25:38 +0300
Subject: ALSA: hda - hdmi: Fix reported channel map on common default layouts

hdmi_setup_fake_chmap() is supposed to set the reported channel map when
the channel map is not specified by the user.

However, the function indexes channel_allocations[] with a wrong value
and extracts the wrong nibble from hdmi_channel_mapping[], causing wrong
channel maps to be shown.

Fix those issues.

Tested on Intel HDMI to correctly generate various channel maps, for
example 3,4,14,15,7,8,5,6 (instead of incorrect 3,4,8,7,5,6,14,0) for
standard 7.1 channel audio. (Note that the side and rear channels are
reported as RL/RR and RLC/RRC, respectively, as per the CEA-861
standard, instead of the more traditional SL/SR and RL/RR.)

Note that this only fixes the layouts that only contain traditional 7.1
speakers (2.0, 2.1, 4.0, 5.1, 7.1, etc.). E.g. the rear center of 6.1
is still being shown wrongly due to an issue with from_cea_slot()
which will be fixed in a later patch.

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 7ea0245fc6bd..dcc4c1cb0ab1 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -740,9 +740,10 @@ static int hdmi_manual_setup_channel_mapping(struct hda_codec *codec,
 static void hdmi_setup_fake_chmap(unsigned char *map, int ca)
 {
 	int i;
+	int ordered_ca = get_channel_allocation_order(ca);
 	for (i = 0; i < 8; i++) {
-		if (i < channel_allocations[ca].channels)
-			map[i] = from_cea_slot((hdmi_channel_mapping[ca][i] >> 4) & 0x0f);
+		if (i < channel_allocations[ordered_ca].channels)
+			map[i] = from_cea_slot(hdmi_channel_mapping[ca][i] & 0x0f);
 		else
 			map[i] = 0;
 	}
-- 
cgit 


From 249ce1387b7739dbea2ac1a697e4bf1e37ec06b7 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 6 Oct 2013 13:43:49 +0200
Subject: ASoC: dapm: Add support for virtual mixer controls

This patch adds support for virtual DAPM mixer controls. They are similar to
virtual DAPM enums. There is no hardware register backing the control, so
changing the control's value wont have any direct effect on the hardware. But it
still influences the DAPM graph by causing the path it sits on to be connected
or disconnected. This in turn can cause power changes for some of the widgets on
the DAPM graph, which will then modify the hardware state.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Tested-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/sound/soc-dapm.h |  4 ++++
 include/sound/soc.h      |  3 ++-
 sound/soc/soc-dapm.c     | 45 +++++++++++++++++++++++++++------------------
 3 files changed, 33 insertions(+), 19 deletions(-)

diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index 27a72d5d4b00..2037c45adfe6 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -286,6 +286,8 @@ struct device;
 	.info = snd_soc_info_volsw, \
 	.get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
 	.private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 1) }
+#define SOC_DAPM_SINGLE_VIRT(xname, max) \
+	SOC_DAPM_SINGLE(xname, SND_SOC_NOPM, 0, max, 0)
 #define SOC_DAPM_SINGLE_TLV(xname, reg, shift, max, invert, tlv_array) \
 {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 	.info = snd_soc_info_volsw, \
@@ -300,6 +302,8 @@ struct device;
 	.tlv.p = (tlv_array), \
 	.get = snd_soc_dapm_get_volsw, .put = snd_soc_dapm_put_volsw, \
 	.private_value = SOC_SINGLE_VALUE(reg, shift, max, invert, 0) }
+#define SOC_DAPM_SINGLE_TLV_VIRT(xname, max, tlv_array) \
+	SOC_DAPM_SINGLE(xname, SND_SOC_NOPM, 0, max, 0, tlv_array)
 #define SOC_DAPM_ENUM(xname, xenum) \
 {	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
 	.info = snd_soc_info_enum_double, \
diff --git a/include/sound/soc.h b/include/sound/soc.h
index d22cb0a06feb..b429dba57bf6 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1088,7 +1088,8 @@ struct snd_soc_pcm_runtime {
 /* mixer control */
 struct soc_mixer_control {
 	int min, max, platform_max;
-	unsigned int reg, rreg, shift, rshift;
+	int reg, rreg;
+	unsigned int shift, rshift;
 	unsigned int invert:1;
 	unsigned int autodisable:1;
 };
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 177f8a1938da..9273216f22fc 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -499,18 +499,22 @@ static void dapm_set_path_status(struct snd_soc_dapm_widget *w,
 		int val;
 		struct soc_mixer_control *mc = (struct soc_mixer_control *)
 			w->kcontrol_news[i].private_value;
-		unsigned int reg = mc->reg;
+		int reg = mc->reg;
 		unsigned int shift = mc->shift;
 		int max = mc->max;
 		unsigned int mask = (1 << fls(max)) - 1;
 		unsigned int invert = mc->invert;
 
-		val = soc_widget_read(w, reg);
-		val = (val >> shift) & mask;
-		if (invert)
-			val = max - val;
+		if (reg != SND_SOC_NOPM) {
+			val = soc_widget_read(w, reg);
+			val = (val >> shift) & mask;
+			if (invert)
+				val = max - val;
+			p->connect = !!val;
+		} else {
+			p->connect = 0;
+		}
 
-		p->connect = !!val;
 	}
 	break;
 	case snd_soc_dapm_mux: {
@@ -2792,7 +2796,7 @@ int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol,
 	struct snd_soc_card *card = codec->card;
 	struct soc_mixer_control *mc =
 		(struct soc_mixer_control *)kcontrol->private_value;
-	unsigned int reg = mc->reg;
+	int reg = mc->reg;
 	unsigned int shift = mc->shift;
 	int max = mc->max;
 	unsigned int mask = (1 << fls(max)) - 1;
@@ -2805,7 +2809,7 @@ int snd_soc_dapm_get_volsw(struct snd_kcontrol *kcontrol,
 			 kcontrol->id.name);
 
 	mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
-	if (dapm_kcontrol_is_powered(kcontrol))
+	if (dapm_kcontrol_is_powered(kcontrol) && reg != SND_SOC_NOPM)
 		val = (snd_soc_read(codec, reg) >> shift) & mask;
 	else
 		val = dapm_kcontrol_get_value(kcontrol);
@@ -2836,7 +2840,7 @@ int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,
 	struct snd_soc_card *card = codec->card;
 	struct soc_mixer_control *mc =
 		(struct soc_mixer_control *)kcontrol->private_value;
-	unsigned int reg = mc->reg;
+	int reg = mc->reg;
 	unsigned int shift = mc->shift;
 	int max = mc->max;
 	unsigned int mask = (1 << fls(max)) - 1;
@@ -2858,19 +2862,24 @@ int snd_soc_dapm_put_volsw(struct snd_kcontrol *kcontrol,
 
 	mutex_lock_nested(&card->dapm_mutex, SND_SOC_DAPM_CLASS_RUNTIME);
 
-	dapm_kcontrol_set_value(kcontrol, val);
+	change = dapm_kcontrol_set_value(kcontrol, val);
 
-	mask = mask << shift;
-	val = val << shift;
+	if (reg != SND_SOC_NOPM) {
+		mask = mask << shift;
+		val = val << shift;
+
+		change = snd_soc_test_bits(codec, reg, mask, val);
+	}
 
-	change = snd_soc_test_bits(codec, reg, mask, val);
 	if (change) {
-		update.kcontrol = kcontrol;
-		update.reg = reg;
-		update.mask = mask;
-		update.val = val;
+		if (reg != SND_SOC_NOPM) {
+			update.kcontrol = kcontrol;
+			update.reg = reg;
+			update.mask = mask;
+			update.val = val;
 
-		card->update = &update;
+			card->update = &update;
+		}
 
 		soc_dapm_mixer_update_power(card, kcontrol, connect);
 
-- 
cgit 


From 90f28002110d783f49639f0db2ccdc0b58302cbd Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@iki.fi>
Date: Sat, 5 Oct 2013 02:25:39 +0300
Subject: ALSA: hda - hdmi: Fix incorrect default channel mapping for unusual
 CAs

hdmi_std_setup_channel_mapping() selects a Channel Allocation according
to the sink reported speaker mask, preferring the ALSA standard layouts.

If the channel allocation is not one of the ALSA standard layouts, the
ALSA channels are mapped directly to HDMI channels in order. However,
the function does not take into account that there a holes in the HDMI
channel map.

Additionally, the function tries to disable a slot by using
AC_VERB_SET_CHAN_SLOT with parameter ((alsa_ch << 8) | 0xf), while the
correct parameter is ((0xf << 8) | hdmi_slot), i.e. the slot should be
unassigned, not the ALSA channel.

Fix both of the issues for non-ALSA-default layouts.

Tested on Intel HDMI with a speaker mask of FL | FR | FC | RC, which
causes CA 0x06 to be selected for 4-channel audio, which causes
incorrect output (sound destined to RC goes to FC and FC goes nowhere)
without the patch.

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index dcc4c1cb0ab1..b187cce64fa4 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -595,22 +595,32 @@ static void hdmi_std_setup_channel_mapping(struct hda_codec *codec,
 				       bool non_pcm,
 				       int ca)
 {
+	struct cea_channel_speaker_allocation *ch_alloc;
 	int i;
 	int err;
 	int order;
 	int non_pcm_mapping[8];
 
 	order = get_channel_allocation_order(ca);
+	ch_alloc = &channel_allocations[order];
 
 	if (hdmi_channel_mapping[ca][1] == 0) {
-		for (i = 0; i < channel_allocations[order].channels; i++)
-			hdmi_channel_mapping[ca][i] = i | (i << 4);
-		for (; i < 8; i++)
-			hdmi_channel_mapping[ca][i] = 0xf | (i << 4);
+		int hdmi_slot = 0;
+		/* fill actual channel mappings in ALSA channel (i) order */
+		for (i = 0; i < ch_alloc->channels; i++) {
+			while (!ch_alloc->speakers[7 - hdmi_slot] && !WARN_ON(hdmi_slot >= 8))
+				hdmi_slot++; /* skip zero slots */
+
+			hdmi_channel_mapping[ca][i] = (i << 4) | hdmi_slot++;
+		}
+		/* fill the rest of the slots with ALSA channel 0xf */
+		for (hdmi_slot = 0; hdmi_slot < 8; hdmi_slot++)
+			if (!ch_alloc->speakers[7 - hdmi_slot])
+				hdmi_channel_mapping[ca][i++] = (0xf << 4) | hdmi_slot;
 	}
 
 	if (non_pcm) {
-		for (i = 0; i < channel_allocations[order].channels; i++)
+		for (i = 0; i < ch_alloc->channels; i++)
 			non_pcm_mapping[i] = i | (i << 4);
 		for (; i < 8; i++)
 			non_pcm_mapping[i] = 0xf | (i << 4);
-- 
cgit 


From 1df5a06abbaa876ecc01ea84064cdffb4f52a1a1 Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@iki.fi>
Date: Sat, 5 Oct 2013 02:25:40 +0300
Subject: ALSA: hda - hdmi: Fix programmed active channel count

Currently the converter channel count is set to the number of actual
input channels. The audio infoframe channel count field is set
similarly.

However, sometimes the used channel map does not map all input channels
to outputs. Notably, 3 channel modes (e.g. 2.1) require a dummy input
channel so there are 4 input channels. According to the HDA
specification, converter channel count should be programmed according to
the number of _active_ channels.

On Intel HDMI codecs (but not on NVIDIA), setting the converter channel
to a higher value than there are actually mapped channels to HDMI slots
will cause no audio to be output at all.

Note that the effects of this issue are currently partially masked by
other bugs that prevent the driver from actually unmapping channels in
certain cases. For example, if a 4 channel stream is first created and
prepared, it gets a FL,FR,RL,RR mapping (ALSA->HDMI slot mapping 0->0,
1->1, 2->4, 3->5). If one thereafter assigns a FR,FL,FC mapping to it,
the driver will remap 2->3 but fail to unmap 2->4 and 3->5, so there are
still 4 active channels and the issue will not trigger in this case.
These bugs will be fixed separately.

Fix the channel counts in the converter channel count field and in the
audio infoframe channel count field to match the actual number of active
channels.

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index b187cce64fa4..4efaca89d805 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -63,6 +63,7 @@ struct hdmi_spec_per_pin {
 	hda_nid_t pin_nid;
 	int num_mux_nids;
 	hda_nid_t mux_nids[HDA_MAX_CONNECTIONS];
+	hda_nid_t cvt_nid;
 
 	struct hda_codec *codec;
 	struct hdmi_eld sink_eld;
@@ -900,8 +901,9 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
 {
 	hda_nid_t pin_nid = per_pin->pin_nid;
 	int channels = per_pin->channels;
+	int active_channels;
 	struct hdmi_eld *eld;
-	int ca;
+	int ca, ordered_ca;
 	union audio_infoframe ai;
 
 	if (!channels)
@@ -923,6 +925,11 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
 	if (ca < 0)
 		ca = 0;
 
+	ordered_ca = get_channel_allocation_order(ca);
+	active_channels = channel_allocations[ordered_ca].channels;
+
+	hdmi_set_channel_count(codec, per_pin->cvt_nid, active_channels);
+
 	memset(&ai, 0, sizeof(ai));
 	if (eld->info.conn_type == 0) { /* HDMI */
 		struct hdmi_audio_infoframe *hdmi_ai = &ai.hdmi;
@@ -930,7 +937,7 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
 		hdmi_ai->type		= 0x84;
 		hdmi_ai->ver		= 0x01;
 		hdmi_ai->len		= 0x0a;
-		hdmi_ai->CC02_CT47	= channels - 1;
+		hdmi_ai->CC02_CT47	= active_channels - 1;
 		hdmi_ai->CA		= ca;
 		hdmi_checksum_audio_infoframe(hdmi_ai);
 	} else if (eld->info.conn_type == 1) { /* DisplayPort */
@@ -939,7 +946,7 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
 		dp_ai->type		= 0x84;
 		dp_ai->len		= 0x1b;
 		dp_ai->ver		= 0x11 << 2;
-		dp_ai->CC02_CT47	= channels - 1;
+		dp_ai->CC02_CT47	= active_channels - 1;
 		dp_ai->CA		= ca;
 	} else {
 		snd_printd("HDMI: unknown connection type at pin %d\n",
@@ -957,7 +964,7 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
 		snd_printdd("hdmi_setup_audio_infoframe: "
 			    "pin=%d channels=%d\n",
 			    pin_nid,
-			    channels);
+			    active_channels);
 		hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca,
 					   channels, per_pin->chmap,
 					   per_pin->chmap_set);
@@ -1230,6 +1237,7 @@ static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
 	per_cvt = get_cvt(spec, cvt_idx);
 	/* Claim converter */
 	per_cvt->assigned = 1;
+	per_pin->cvt_nid = per_cvt->cvt_nid;
 	hinfo->nid = per_cvt->cvt_nid;
 
 	snd_hda_codec_write_cache(codec, per_pin->pin_nid, 0,
@@ -1552,8 +1560,6 @@ static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
 	per_pin->channels = substream->runtime->channels;
 	per_pin->setup = true;
 
-	hdmi_set_channel_count(codec, cvt_nid, substream->runtime->channels);
-
 	hdmi_setup_audio_infoframe(codec, per_pin, non_pcm);
 
 	return hdmi_setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
-- 
cgit 


From 290c348ee5522a5682c2011fa4d51f232404e8a4 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 6 Oct 2013 13:43:51 +0200
Subject: ASoC: twl6040: Use virtual DAPM mixer controls

By using the new virtual DAPM mixer controls it is possible to remove the
twl6040 specific implementation of virtual controls.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/twl6040.c | 22 +++++-----------------
 1 file changed, 5 insertions(+), 17 deletions(-)

diff --git a/sound/soc/codecs/twl6040.c b/sound/soc/codecs/twl6040.c
index 35059a242fa4..f2f4bcb2ff71 100644
--- a/sound/soc/codecs/twl6040.c
+++ b/sound/soc/codecs/twl6040.c
@@ -54,12 +54,7 @@ enum twl6040_dai_id {
 #define TWL6040_OUTHF_0dB 0x03
 #define TWL6040_OUTHF_M52dB 0x1D
 
-/* Shadow register used by the driver */
-#define TWL6040_REG_SW_SHADOW	0x2F
-#define TWL6040_CACHEREGNUM	(TWL6040_REG_SW_SHADOW + 1)
-
-/* TWL6040_REG_SW_SHADOW (0x2F) fields */
-#define TWL6040_EAR_PATH_ENABLE	0x01
+#define TWL6040_CACHEREGNUM	(TWL6040_REG_STATUS + 1)
 
 struct twl6040_jack_data {
 	struct snd_soc_jack *jack;
@@ -135,8 +130,6 @@ static const u8 twl6040_reg[TWL6040_CACHEREGNUM] = {
 	0x00, /* REG_HFOTRIM	0x2C	*/
 	0x09, /* REG_ACCCTL	0x2D	*/
 	0x00, /* REG_STATUS	0x2E (ro) */
-
-	0x00, /* REG_SW_SHADOW	0x2F - Shadow, non HW register */
 };
 
 /* List of registers to be restored after power up */
@@ -220,12 +213,8 @@ static int twl6040_read_reg_volatile(struct snd_soc_codec *codec,
 	if (reg >= TWL6040_CACHEREGNUM)
 		return -EIO;
 
-	if (likely(reg < TWL6040_REG_SW_SHADOW)) {
-		value = twl6040_reg_read(twl6040, reg);
-		twl6040_write_reg_cache(codec, reg, value);
-	} else {
-		value = twl6040_read_reg_cache(codec, reg);
-	}
+	value = twl6040_reg_read(twl6040, reg);
+	twl6040_write_reg_cache(codec, reg, value);
 
 	return value;
 }
@@ -261,8 +250,7 @@ static int twl6040_write(struct snd_soc_codec *codec,
 		return -EIO;
 
 	twl6040_write_reg_cache(codec, reg, value);
-	if (likely(reg < TWL6040_REG_SW_SHADOW) &&
-	    twl6040_is_path_unmuted(codec, reg))
+	if (twl6040_is_path_unmuted(codec, reg))
 		return twl6040_reg_write(twl6040, reg, value);
 	else
 		return 0;
@@ -555,7 +543,7 @@ static const struct snd_kcontrol_new hfr_mux_controls =
 	SOC_DAPM_ENUM("Route", twl6040_hf_enum[1]);
 
 static const struct snd_kcontrol_new ep_path_enable_control =
-	SOC_DAPM_SINGLE("Switch", TWL6040_REG_SW_SHADOW, 0, 1, 0);
+	SOC_DAPM_SINGLE_VIRT("Switch", 1);
 
 static const struct snd_kcontrol_new auxl_switch_control =
 	SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFLCTL, 6, 1, 0);
-- 
cgit 


From 11f7c52d90b21a51b0bc6a8b642c6ed150bdc219 Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@iki.fi>
Date: Sat, 5 Oct 2013 02:25:41 +0300
Subject: ALSA: hda - hdmi: Fix unused slots being enabled in manual and
 non-PCM mappings

hdmi_manual_setup_channel_mapping() and hdmi_std_setup_channel_mapping
try to assign ALSA channels to HDMI channel slots and disable (i.e.
silence) other slots.

However, they try to disable a slot by using AC_VERB_SET_CHAN_SLOT with
parameter ((alsa_ch << 8) | 0xf), while the correct parameter is
((0xf << 8) | hdmi_slot), i.e. the slot should be unassigned, not the
ALSA channel.

Fix that by actually disabling the unused slots.

Note that this bug did not cause any (reported) issues because slots
incorrectly having audio are normally ignored by a receiver if the CEA
channel allocation used does not map that slot to any speaker.
Additionally, the converter channel count configuration limits the
number of actually active channels in any case.

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 29 +++++++++++++++++++----------
 1 file changed, 19 insertions(+), 10 deletions(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 4efaca89d805..8bf526ea8cf2 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -622,9 +622,9 @@ static void hdmi_std_setup_channel_mapping(struct hda_codec *codec,
 
 	if (non_pcm) {
 		for (i = 0; i < ch_alloc->channels; i++)
-			non_pcm_mapping[i] = i | (i << 4);
+			non_pcm_mapping[i] = (i << 4) | i;
 		for (; i < 8; i++)
-			non_pcm_mapping[i] = 0xf | (i << 4);
+			non_pcm_mapping[i] = (0xf << 4) | i;
 	}
 
 	for (i = 0; i < 8; i++) {
@@ -678,7 +678,7 @@ static int to_cea_slot(unsigned char c)
 		if (t->map == c)
 			return t->cea_slot;
 	}
-	return 0x0f;
+	return -1;
 }
 
 /* from CEA slot to ALSA API channel position */
@@ -731,14 +731,23 @@ static int hdmi_manual_setup_channel_mapping(struct hda_codec *codec,
 					     hda_nid_t pin_nid,
 					     int chs, unsigned char *map)
 {
-	int i;
-	for (i = 0; i < 8; i++) {
+	int alsa_pos, hdmi_slot;
+	int assignments[8] = {[0 ... 7] = 0xf};
+
+	for (alsa_pos = 0; alsa_pos < chs; alsa_pos++) {
+
+		hdmi_slot = to_cea_slot(map[alsa_pos]);
+
+		if (hdmi_slot < 0)
+			continue; /* unassigned channel */
+
+		assignments[hdmi_slot] = alsa_pos;
+	}
+
+	for (hdmi_slot = 0; hdmi_slot < 8; hdmi_slot++) {
 		int val, err;
-		if (i < chs)
-			val = to_cea_slot(map[i]);
-		else
-			val = 0xf;
-		val |= (i << 4);
+
+		val = (assignments[hdmi_slot] << 4) | hdmi_slot;
 		err = snd_hda_codec_write(codec, pin_nid, 0,
 					  AC_VERB_SET_HDMI_CHAN_SLOT, val);
 		if (err)
-- 
cgit 


From a5b7d510b2220cccbcaeb1b87a6d8c47efeb154c Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@iki.fi>
Date: Sat, 5 Oct 2013 02:25:42 +0300
Subject: ALSA: hda - hdmi: Fix channel maps with less common speakers

For some speakers and slots the CEA slot <-> speaker assignment depends
on the used CEA Channel Allocation value.

Therefore the from_cea_slot() and to_cea_slot() helpers currently only
work correctly for the regular 7.1 speakers.

Fix them to work with all speakers, taking the re-ordered CA index as
input and adapting use sites accordingly.

This change allows manual channel mapping to actually work for all CEA
allocated speakers. Additionally, this fixes incorrect channel map
reporting in automatic channel mapping mode when an affected speaker
position is used (e.g. 6.1 map which contains an RC speaker).

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 70 +++++++++++++++++++++++++++-------------------
 1 file changed, 41 insertions(+), 29 deletions(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 8bf526ea8cf2..dab2af762d94 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -643,19 +643,27 @@ static void hdmi_std_setup_channel_mapping(struct hda_codec *codec,
 
 struct channel_map_table {
 	unsigned char map;		/* ALSA API channel map position */
-	unsigned char cea_slot;		/* CEA slot value */
 	int spk_mask;			/* speaker position bit mask */
 };
 
 static struct channel_map_table map_tables[] = {
-	{ SNDRV_CHMAP_FL,	0x00,	FL },
-	{ SNDRV_CHMAP_FR,	0x01,	FR },
-	{ SNDRV_CHMAP_RL,	0x04,	RL },
-	{ SNDRV_CHMAP_RR,	0x05,	RR },
-	{ SNDRV_CHMAP_LFE,	0x02,	LFE },
-	{ SNDRV_CHMAP_FC,	0x03,	FC },
-	{ SNDRV_CHMAP_RLC,	0x06,	RLC },
-	{ SNDRV_CHMAP_RRC,	0x07,	RRC },
+	{ SNDRV_CHMAP_FL,	FL },
+	{ SNDRV_CHMAP_FR,	FR },
+	{ SNDRV_CHMAP_RL,	RL },
+	{ SNDRV_CHMAP_RR,	RR },
+	{ SNDRV_CHMAP_LFE,	LFE },
+	{ SNDRV_CHMAP_FC,	FC },
+	{ SNDRV_CHMAP_RLC,	RLC },
+	{ SNDRV_CHMAP_RRC,	RRC },
+	{ SNDRV_CHMAP_RC,	RC },
+	{ SNDRV_CHMAP_FLC,	FLC },
+	{ SNDRV_CHMAP_FRC,	FRC },
+	{ SNDRV_CHMAP_FLH,	FLH },
+	{ SNDRV_CHMAP_FRH,	FRH },
+	{ SNDRV_CHMAP_FLW,	FLW },
+	{ SNDRV_CHMAP_FRW,	FRW },
+	{ SNDRV_CHMAP_TC,	TC },
+	{ SNDRV_CHMAP_FCH,	FCH },
 	{} /* terminator */
 };
 
@@ -671,25 +679,19 @@ static int to_spk_mask(unsigned char c)
 }
 
 /* from ALSA API channel position to CEA slot */
-static int to_cea_slot(unsigned char c)
+static int to_cea_slot(int ordered_ca, unsigned char pos)
 {
-	struct channel_map_table *t = map_tables;
-	for (; t->map; t++) {
-		if (t->map == c)
-			return t->cea_slot;
-	}
-	return -1;
-}
+	int mask = to_spk_mask(pos);
+	int i;
 
-/* from CEA slot to ALSA API channel position */
-static int from_cea_slot(unsigned char c)
-{
-	struct channel_map_table *t = map_tables;
-	for (; t->map; t++) {
-		if (t->cea_slot == c)
-			return t->map;
+	if (mask) {
+		for (i = 0; i < 8; i++) {
+			if (channel_allocations[ordered_ca].speakers[7 - i] == mask)
+				return i;
+		}
 	}
-	return 0;
+
+	return -1;
 }
 
 /* from speaker bit mask to ALSA API channel position */
@@ -703,6 +705,14 @@ static int spk_to_chmap(int spk)
 	return 0;
 }
 
+/* from CEA slot to ALSA API channel position */
+static int from_cea_slot(int ordered_ca, unsigned char slot)
+{
+	int mask = channel_allocations[ordered_ca].speakers[7 - slot];
+
+	return spk_to_chmap(mask);
+}
+
 /* get the CA index corresponding to the given ALSA API channel map */
 static int hdmi_manual_channel_allocation(int chs, unsigned char *map)
 {
@@ -729,14 +739,16 @@ static int hdmi_manual_channel_allocation(int chs, unsigned char *map)
 /* set up the channel slots for the given ALSA API channel map */
 static int hdmi_manual_setup_channel_mapping(struct hda_codec *codec,
 					     hda_nid_t pin_nid,
-					     int chs, unsigned char *map)
+					     int chs, unsigned char *map,
+					     int ca)
 {
+	int ordered_ca = get_channel_allocation_order(ca);
 	int alsa_pos, hdmi_slot;
 	int assignments[8] = {[0 ... 7] = 0xf};
 
 	for (alsa_pos = 0; alsa_pos < chs; alsa_pos++) {
 
-		hdmi_slot = to_cea_slot(map[alsa_pos]);
+		hdmi_slot = to_cea_slot(ordered_ca, map[alsa_pos]);
 
 		if (hdmi_slot < 0)
 			continue; /* unassigned channel */
@@ -763,7 +775,7 @@ static void hdmi_setup_fake_chmap(unsigned char *map, int ca)
 	int ordered_ca = get_channel_allocation_order(ca);
 	for (i = 0; i < 8; i++) {
 		if (i < channel_allocations[ordered_ca].channels)
-			map[i] = from_cea_slot(hdmi_channel_mapping[ca][i] & 0x0f);
+			map[i] = from_cea_slot(ordered_ca, hdmi_channel_mapping[ca][i] & 0x0f);
 		else
 			map[i] = 0;
 	}
@@ -776,7 +788,7 @@ static void hdmi_setup_channel_mapping(struct hda_codec *codec,
 {
 	if (!non_pcm && chmap_set) {
 		hdmi_manual_setup_channel_mapping(codec, pin_nid,
-						  channels, map);
+						  channels, map, ca);
 	} else {
 		hdmi_std_setup_channel_mapping(codec, pin_nid, non_pcm, ca);
 		hdmi_setup_fake_chmap(map, ca);
-- 
cgit 


From bb731f2100e614a8d7c5965d3663aed893859733 Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@iki.fi>
Date: Sat, 5 Oct 2013 02:25:43 +0300
Subject: ALSA: hda - hdmi: Fix available channel maps missing from TLV

Currently the available channel maps TLV only contains channel maps that
are limited to the traditional 7.1 speakers.

Since the other HDMI channel mapping functions have been fixed to
properly handle all CEA-861-E specified speakers, allow them to be
listed.

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index dab2af762d94..62b1e852d002 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -1658,8 +1658,6 @@ static int hdmi_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag,
 	struct snd_pcm_chmap *info = snd_kcontrol_chip(kcontrol);
 	struct hda_codec *codec = info->private_data;
 	struct hdmi_spec *spec = codec->spec;
-	const unsigned int valid_mask =
-		FL | FR | RL | RR | LFE | FC | RLC | RRC;
 	unsigned int __user *dst;
 	int chs, count = 0;
 
@@ -1677,8 +1675,6 @@ static int hdmi_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag,
 			int chs_bytes = chs * 4;
 			if (cap->channels != chs)
 				continue;
-			if (cap->spk_mask & ~valid_mask)
-				continue;
 			if (size < 8)
 				return -ENOMEM;
 			if (put_user(SNDRV_CTL_TLVT_CHMAP_VAR, dst) ||
-- 
cgit 


From 980b24958f0c615fd003d37f0fce4ab1ecd01784 Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@iki.fi>
Date: Sat, 5 Oct 2013 02:25:44 +0300
Subject: ALSA: hda - hdmi: Tweak debug messages to be more useful

Allow channel map debugging for both automatic and manual channel maps,
and print CA always when updating infoframe.

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 62b1e852d002..00e041333904 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -637,8 +637,6 @@ static void hdmi_std_setup_channel_mapping(struct hda_codec *codec,
 			break;
 		}
 	}
-
-	hdmi_debug_channel_mapping(codec, pin_nid);
 }
 
 struct channel_map_table {
@@ -793,6 +791,8 @@ static void hdmi_setup_channel_mapping(struct hda_codec *codec,
 		hdmi_std_setup_channel_mapping(codec, pin_nid, non_pcm, ca);
 		hdmi_setup_fake_chmap(map, ca);
 	}
+
+	hdmi_debug_channel_mapping(codec, pin_nid);
 }
 
 /*
@@ -983,9 +983,9 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
 	if (!hdmi_infoframe_uptodate(codec, pin_nid, ai.bytes,
 					sizeof(ai))) {
 		snd_printdd("hdmi_setup_audio_infoframe: "
-			    "pin=%d channels=%d\n",
+			    "pin=%d channels=%d ca=0x%02x\n",
 			    pin_nid,
-			    active_channels);
+			    active_channels, ca);
 		hdmi_setup_channel_mapping(codec, pin_nid, non_pcm, ca,
 					   channels, per_pin->chmap,
 					   per_pin->chmap_set);
-- 
cgit 


From 052901f42f360062f36cc5c0aa6e5ae372fe0895 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sun, 6 Oct 2013 13:43:50 +0200
Subject: ASoC: twl4030: Use virtual DAPM mixer controls

By using the new virtual DAPM mixer controls it is possible to remove the
twl4030 specific implementation of virtual controls.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/twl4030.c | 80 +++++++++++++++++++++-------------------------
 1 file changed, 36 insertions(+), 44 deletions(-)

diff --git a/sound/soc/codecs/twl4030.c b/sound/soc/codecs/twl4030.c
index 1e3884d6b3fb..dfc51bb425da 100644
--- a/sound/soc/codecs/twl4030.c
+++ b/sound/soc/codecs/twl4030.c
@@ -46,13 +46,7 @@
 /* TWL4030 PMBR1 Register GPIO6 mux bits */
 #define TWL4030_GPIO6_PWM0_MUTE(value)	((value & 0x03) << 2)
 
-/* Shadow register used by the audio driver */
-#define TWL4030_REG_SW_SHADOW		0x4A
-#define TWL4030_CACHEREGNUM	(TWL4030_REG_SW_SHADOW + 1)
-
-/* TWL4030_REG_SW_SHADOW (0x4A) Fields */
-#define TWL4030_HFL_EN			0x01
-#define TWL4030_HFR_EN			0x02
+#define TWL4030_CACHEREGNUM	(TWL4030_REG_MISC_SET_2 + 1)
 
 /*
  * twl4030 register cache & default register settings
@@ -132,7 +126,6 @@ static const u8 twl4030_reg[TWL4030_CACHEREGNUM] = {
 	0x00, /* REG_VIBRA_PWM_SET	(0x47)	*/
 	0x00, /* REG_ANAMIC_GAIN	(0x48)	*/
 	0x00, /* REG_MISC_SET_2		(0x49)	*/
-	0x00, /* REG_SW_SHADOW		(0x4A)	- Shadow, non HW register */
 };
 
 /* codec private data */
@@ -198,42 +191,41 @@ static int twl4030_write(struct snd_soc_codec *codec,
 	int write_to_reg = 0;
 
 	twl4030_write_reg_cache(codec, reg, value);
-	if (likely(reg < TWL4030_REG_SW_SHADOW)) {
-		/* Decide if the given register can be written */
-		switch (reg) {
-		case TWL4030_REG_EAR_CTL:
-			if (twl4030->earpiece_enabled)
-				write_to_reg = 1;
-			break;
-		case TWL4030_REG_PREDL_CTL:
-			if (twl4030->predrivel_enabled)
-				write_to_reg = 1;
-			break;
-		case TWL4030_REG_PREDR_CTL:
-			if (twl4030->predriver_enabled)
-				write_to_reg = 1;
-			break;
-		case TWL4030_REG_PRECKL_CTL:
-			if (twl4030->carkitl_enabled)
-				write_to_reg = 1;
-			break;
-		case TWL4030_REG_PRECKR_CTL:
-			if (twl4030->carkitr_enabled)
-				write_to_reg = 1;
-			break;
-		case TWL4030_REG_HS_GAIN_SET:
-			if (twl4030->hsl_enabled || twl4030->hsr_enabled)
-				write_to_reg = 1;
-			break;
-		default:
-			/* All other register can be written */
+	/* Decide if the given register can be written */
+	switch (reg) {
+	case TWL4030_REG_EAR_CTL:
+		if (twl4030->earpiece_enabled)
 			write_to_reg = 1;
-			break;
-		}
-		if (write_to_reg)
-			return twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
-						    value, reg);
+		break;
+	case TWL4030_REG_PREDL_CTL:
+		if (twl4030->predrivel_enabled)
+			write_to_reg = 1;
+		break;
+	case TWL4030_REG_PREDR_CTL:
+		if (twl4030->predriver_enabled)
+			write_to_reg = 1;
+		break;
+	case TWL4030_REG_PRECKL_CTL:
+		if (twl4030->carkitl_enabled)
+			write_to_reg = 1;
+		break;
+	case TWL4030_REG_PRECKR_CTL:
+		if (twl4030->carkitr_enabled)
+			write_to_reg = 1;
+		break;
+	case TWL4030_REG_HS_GAIN_SET:
+		if (twl4030->hsl_enabled || twl4030->hsr_enabled)
+			write_to_reg = 1;
+		break;
+	default:
+		/* All other register can be written */
+		write_to_reg = 1;
+		break;
 	}
+	if (write_to_reg)
+		return twl_i2c_write_u8(TWL4030_MODULE_AUDIO_VOICE,
+					    value, reg);
+
 	return 0;
 }
 
@@ -532,7 +524,7 @@ SOC_DAPM_ENUM("Route", twl4030_handsfreel_enum);
 
 /* Handsfree Left virtual mute */
 static const struct snd_kcontrol_new twl4030_dapm_handsfreelmute_control =
-	SOC_DAPM_SINGLE("Switch", TWL4030_REG_SW_SHADOW, 0, 1, 0);
+	SOC_DAPM_SINGLE_VIRT("Switch", 1);
 
 /* Handsfree Right */
 static const char *twl4030_handsfreer_texts[] =
@@ -548,7 +540,7 @@ SOC_DAPM_ENUM("Route", twl4030_handsfreer_enum);
 
 /* Handsfree Right virtual mute */
 static const struct snd_kcontrol_new twl4030_dapm_handsfreermute_control =
-	SOC_DAPM_SINGLE("Switch", TWL4030_REG_SW_SHADOW, 1, 1, 0);
+	SOC_DAPM_SINGLE_VIRT("Switch", 1);
 
 /* Vibra */
 /* Vibra audio path selection */
-- 
cgit 


From df3774c5c53305eda4053d5c941bb17a2145e3c6 Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Tue, 1 Oct 2013 14:32:15 -0500
Subject: ALSA: usb-audio: add support for wireless USB devices

This patch updates snd_usb_audio_create also support devices whose
speed == USB_SPEED_WIRELESS.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/card.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/usb/card.c b/sound/usb/card.c
index d1f54dfe41d5..9d9de8d53469 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -346,6 +346,7 @@ static int snd_usb_audio_create(struct usb_device *dev, int idx,
 	case USB_SPEED_LOW:
 	case USB_SPEED_FULL:
 	case USB_SPEED_HIGH:
+	case USB_SPEED_WIRELESS:
 	case USB_SPEED_SUPER:
 		break;
 	default:
-- 
cgit 


From 6d5eba5aac4ec9bba3d6b3e6425d857706d12ccb Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Tue, 1 Oct 2013 14:32:57 -0500
Subject: ALSA: usb-audio: support wireless devices in
 snd_usb_parse_datainterval

This patch adds support for dev speed USB_SPEED_WIRELESS in
snd_usb_parse_datainterval which allows the usb sound core to create
ISO urbs with the correct number and size of buffers.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/helper.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/usb/helper.c b/sound/usb/helper.c
index 620902463c6e..51ed1ac825fd 100644
--- a/sound/usb/helper.c
+++ b/sound/usb/helper.c
@@ -118,6 +118,7 @@ unsigned char snd_usb_parse_datainterval(struct snd_usb_audio *chip,
 {
 	switch (snd_usb_get_speed(chip->dev)) {
 	case USB_SPEED_HIGH:
+	case USB_SPEED_WIRELESS:
 	case USB_SPEED_SUPER:
 		if (get_endpoint(alts, 0)->bInterval >= 1 &&
 		    get_endpoint(alts, 0)->bInterval <= 4)
-- 
cgit 


From acc1ccadb85fc47238e9d92b2336c04c9fc64d53 Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Thu, 3 Oct 2013 19:36:37 +0530
Subject: regulator: palmas: get regulators node from parent node only

The device tree binding of Palmas regulator driver says as:

palmas_pmis {
	compatible = "ti,palmas-pmic";
	...
	regulators {
		...
	}
};

In this "regulators" subnode is expected to be part of parent node, not
the outside of parent node. Hence to get the regulator node, the correct
call is of_get_child_by_name() rather than of_find_node_by_name() which
actually searches the "regulators" node from the parent node to end of DTS
file.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/palmas-regulator.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index 1b31e414fde1..d68f05b105b5 100644
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -826,7 +826,7 @@ static void palmas_dt_to_pdata(struct device *dev,
 	int idx, ret;
 
 	node = of_node_get(node);
-	regulators = of_find_node_by_name(node, "regulators");
+	regulators = of_get_child_by_name(node, "regulators");
 	if (!regulators) {
 		dev_info(dev, "regulator node not found\n");
 		return;
-- 
cgit 


From 562d4d59b8a1d5f3ca75115d6ac10c7b7bc68c06 Mon Sep 17 00:00:00 2001
From: Thierry Escande <thierry.escande@linux.intel.com>
Date: Fri, 4 Oct 2013 12:12:00 +0200
Subject: NFC: Sony Port-100 Series driver

This adds support for the Sony NFC USB dongle RC-S380, based on the
Port-100 chip. This dongle is an analog frontend and does not implement
the digital layer. This driver uses the nfc_digital module which is an
implementation of the NFC Digital Protocol stack.

This patch is a skeleton. It only registers the dongle against the NFC
digital protocol stack. All NFC digital operation functions are stubbed
out.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Cc: Stephen Tiedemann <stephen.tiedemann@gmail.com>
Tested-by: Cho, Yu-Chen <acho@suse.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/nfc/Kconfig   |  10 +++
 drivers/nfc/Makefile  |   1 +
 drivers/nfc/port100.c | 187 ++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 198 insertions(+)
 create mode 100644 drivers/nfc/port100.c

diff --git a/drivers/nfc/Kconfig b/drivers/nfc/Kconfig
index b0b64ccb7d7d..c1fb20603338 100644
--- a/drivers/nfc/Kconfig
+++ b/drivers/nfc/Kconfig
@@ -46,6 +46,16 @@ config NFC_SIM
 
 	  If unsure, say N.
 
+config NFC_PORT100
+	tristate "Sony NFC Port-100 Series USB device support"
+	depends on USB
+	depends on NFC_DIGITAL
+	help
+	  This adds support for Sony Port-100 chip based USB devices such as the
+	  RC-S380 dongle.
+
+	  If unsure, say N.
+
 source "drivers/nfc/pn544/Kconfig"
 source "drivers/nfc/microread/Kconfig"
 
diff --git a/drivers/nfc/Makefile b/drivers/nfc/Makefile
index be7636abcb3f..c715fe8582a8 100644
--- a/drivers/nfc/Makefile
+++ b/drivers/nfc/Makefile
@@ -8,5 +8,6 @@ obj-$(CONFIG_NFC_PN533)		+= pn533.o
 obj-$(CONFIG_NFC_WILINK)	+= nfcwilink.o
 obj-$(CONFIG_NFC_MEI_PHY)	+= mei_phy.o
 obj-$(CONFIG_NFC_SIM)		+= nfcsim.o
+obj-$(CONFIG_NFC_PORT100)	+= port100.o
 
 ccflags-$(CONFIG_NFC_DEBUG) := -DDEBUG
diff --git a/drivers/nfc/port100.c b/drivers/nfc/port100.c
new file mode 100644
index 000000000000..f167907ae39c
--- /dev/null
+++ b/drivers/nfc/port100.c
@@ -0,0 +1,187 @@
+/*
+ * Sony NFC Port-100 Series driver
+ * Copyright (c) 2013, Intel Corporation.
+ *
+ * Partly based/Inspired by Stephen Tiedemann's nfcpy
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/usb.h>
+#include <net/nfc/digital.h>
+
+#define VERSION "0.1"
+
+#define SONY_VENDOR_ID    0x054c
+#define RCS380_PRODUCT_ID 0x06c1
+
+#define PORT100_PROTOCOLS (NFC_PROTO_JEWEL_MASK    | \
+			   NFC_PROTO_MIFARE_MASK   | \
+			   NFC_PROTO_FELICA_MASK   | \
+			   NFC_PROTO_NFC_DEP_MASK)
+
+#define PORT100_CAPABILITIES (NFC_DIGITAL_DRV_CAPS_IN_CRC | \
+			      NFC_DIGITAL_DRV_CAPS_TG_CRC)
+
+struct port100 {
+	struct nfc_digital_dev *nfc_digital_dev;
+
+	int skb_headroom;
+	int skb_tailroom;
+
+	struct usb_device *udev;
+	struct usb_interface *interface;
+};
+
+static void port100_abort_cmd(struct nfc_digital_dev *ddev)
+{
+}
+
+static int port100_switch_rf(struct nfc_digital_dev *ddev, bool on)
+{
+	return -EOPNOTSUPP;
+}
+
+static int port100_in_configure_hw(struct nfc_digital_dev *ddev, int type,
+				   int param)
+{
+	return -EOPNOTSUPP;
+}
+
+static int port100_in_send_cmd(struct nfc_digital_dev *ddev,
+			       struct sk_buff *skb, u16 _timeout,
+			       nfc_digital_cmd_complete_t cb, void *arg)
+{
+	return -EOPNOTSUPP;
+}
+
+static int port100_tg_configure_hw(struct nfc_digital_dev *ddev, int type,
+				   int param)
+{
+	return -EOPNOTSUPP;
+}
+
+static int port100_tg_send_cmd(struct nfc_digital_dev *ddev,
+			       struct sk_buff *skb, u16 timeout,
+			       nfc_digital_cmd_complete_t cb, void *arg)
+{
+	return -EOPNOTSUPP;
+}
+
+static int port100_listen_mdaa(struct nfc_digital_dev *ddev,
+			       struct digital_tg_mdaa_params *params,
+			       u16 timeout,
+			       nfc_digital_cmd_complete_t cb, void *arg)
+{
+	return -EOPNOTSUPP;
+}
+
+static int port100_listen(struct nfc_digital_dev *ddev, u16 timeout,
+			  nfc_digital_cmd_complete_t cb, void *arg)
+{
+	return -EOPNOTSUPP;
+}
+
+static struct nfc_digital_ops port100_digital_ops = {
+	.in_configure_hw = port100_in_configure_hw,
+	.in_send_cmd = port100_in_send_cmd,
+
+	.tg_listen_mdaa = port100_listen_mdaa,
+	.tg_listen = port100_listen,
+	.tg_configure_hw = port100_tg_configure_hw,
+	.tg_send_cmd = port100_tg_send_cmd,
+
+	.switch_rf = port100_switch_rf,
+	.abort_cmd = port100_abort_cmd,
+};
+
+static const struct usb_device_id port100_table[] = {
+	{ .match_flags		= USB_DEVICE_ID_MATCH_DEVICE,
+	  .idVendor		= SONY_VENDOR_ID,
+	  .idProduct		= RCS380_PRODUCT_ID,
+	},
+	{ }
+};
+MODULE_DEVICE_TABLE(usb, port100_table);
+
+static int port100_probe(struct usb_interface *interface,
+			 const struct usb_device_id *id)
+{
+	struct port100 *dev;
+	int rc;
+
+	dev = devm_kzalloc(&interface->dev, sizeof(struct port100), GFP_KERNEL);
+	if (!dev)
+		return -ENOMEM;
+
+	dev->udev = usb_get_dev(interface_to_usbdev(interface));
+	dev->interface = interface;
+	usb_set_intfdata(interface, dev);
+
+	nfc_info(&interface->dev, "Sony NFC Port-100 Series attached\n");
+
+	dev->nfc_digital_dev = nfc_digital_allocate_device(&port100_digital_ops,
+							   PORT100_PROTOCOLS,
+							   PORT100_CAPABILITIES,
+							   dev->skb_headroom,
+							   dev->skb_tailroom);
+	if (!dev->nfc_digital_dev) {
+		nfc_err(&interface->dev,
+			"Could not allocate nfc_digital_dev.\n");
+		rc = -ENOMEM;
+		goto error;
+	}
+
+	nfc_digital_set_parent_dev(dev->nfc_digital_dev, &interface->dev);
+	nfc_digital_set_drvdata(dev->nfc_digital_dev, dev);
+
+	rc = nfc_digital_register_device(dev->nfc_digital_dev);
+	if (rc) {
+		nfc_err(&interface->dev,
+			"Could not register digital device.\n");
+		goto free_nfc_dev;
+	}
+
+	return 0;
+
+free_nfc_dev:
+	nfc_digital_free_device(dev->nfc_digital_dev);
+
+error:
+	return rc;
+}
+
+static void port100_disconnect(struct usb_interface *interface)
+{
+	struct port100 *dev;
+
+	dev = usb_get_intfdata(interface);
+	usb_set_intfdata(interface, NULL);
+
+	nfc_digital_unregister_device(dev->nfc_digital_dev);
+	nfc_digital_free_device(dev->nfc_digital_dev);
+
+	nfc_info(&interface->dev, "Sony Port-100 NFC device disconnected");
+}
+
+static struct usb_driver port100_driver = {
+	.name =		"port100",
+	.probe =	port100_probe,
+	.disconnect =	port100_disconnect,
+	.id_table =	port100_table,
+};
+
+module_usb_driver(port100_driver);
+
+MODULE_DESCRIPTION("NFC Port-100 series usb driver ver " VERSION);
+MODULE_VERSION(VERSION);
+MODULE_LICENSE("GPL");
-- 
cgit 


From 764d022133979f9d9a179152cd89717e9752c61a Mon Sep 17 00:00:00 2001
From: Mathieu Rhéaume <mathieu@codingrhemes.com>
Date: Tue, 1 Oct 2013 05:29:39 -0400
Subject: ACPI / processor: fixed a brace coding style issue
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Fixed a brace coding style issue. (Brace not on the good line)

Signed-off-by: Mathieu Rhéaume <mathieu@codingrhemes.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/processor_driver.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index e534ba66d5b8..40fc773ab6e0 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -153,8 +153,7 @@ static int acpi_cpu_soft_notify(struct notifier_block *nfb,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __refdata acpi_cpu_notifier =
-{
+static struct notifier_block __refdata acpi_cpu_notifier = {
 	    .notifier_call = acpi_cpu_soft_notify,
 };
 
-- 
cgit 


From 0347a6ab300a1532c298823408d6e51ccf4e4f45 Mon Sep 17 00:00:00 2001
From: Thierry Escande <thierry.escande@linux.intel.com>
Date: Fri, 4 Oct 2013 12:12:01 +0200
Subject: NFC: port100: Commands mechanism implementation

This patch implements the command handling mechanism. The digital stack
serializes all commands sent to the driver. This means that the digital
stack waits for the reply of the current command before sending a new
one. So there is no command queue managed at driver level.

All Port-100 commands are asynchronous. If the command has been sent
successfully to the device, it replies with an ACK frame. Then the
command response is received (or actually no-response in case of
timeout or error) and a command complete work on the system workqueue
is responsible for sending the response (or the error) back to the
digital stack.

The digital stack requires some commands to be synchronous, mainly
hardware configuration ones. These commands use the asynchronous
command path but are made synchronous by using a completion object.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Cc: Stephen Tiedemann <stephen.tiedemann@gmail.com>
Tested-by: Cho, Yu-Chen <acho@suse.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/nfc/port100.c | 671 +++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 670 insertions(+), 1 deletion(-)

diff --git a/drivers/nfc/port100.c b/drivers/nfc/port100.c
index f167907ae39c..251a2c112299 100644
--- a/drivers/nfc/port100.c
+++ b/drivers/nfc/port100.c
@@ -32,6 +32,57 @@
 #define PORT100_CAPABILITIES (NFC_DIGITAL_DRV_CAPS_IN_CRC | \
 			      NFC_DIGITAL_DRV_CAPS_TG_CRC)
 
+/* Standard port100 frame definitions */
+#define PORT100_FRAME_HEADER_LEN (sizeof(struct port100_frame) \
+				  + 2) /* data[0] CC, data[1] SCC */
+#define PORT100_FRAME_TAIL_LEN 2 /* data[len] DCS, data[len + 1] postamble*/
+
+#define PORT100_COMM_RF_HEAD_MAX_LEN (sizeof(struct port100_tg_comm_rf_cmd))
+
+/*
+ * Max extended frame payload len, excluding CC and SCC
+ * which are already in PORT100_FRAME_HEADER_LEN.
+ */
+#define PORT100_FRAME_MAX_PAYLOAD_LEN 1001
+
+#define PORT100_FRAME_ACK_SIZE 6 /* Preamble (1), SoPC (2), ACK Code (2),
+				    Postamble (1) */
+static u8 ack_frame[PORT100_FRAME_ACK_SIZE] = {
+	0x00, 0x00, 0xff, 0x00, 0xff, 0x00
+};
+
+#define PORT100_FRAME_CHECKSUM(f) (f->data[le16_to_cpu(f->datalen)])
+#define PORT100_FRAME_POSTAMBLE(f) (f->data[le16_to_cpu(f->datalen) + 1])
+
+/* start of frame */
+#define PORT100_FRAME_SOF	0x00FF
+#define PORT100_FRAME_EXT	0xFFFF
+#define PORT100_FRAME_ACK	0x00FF
+
+/* Port-100 command: in or out */
+#define PORT100_FRAME_DIRECTION(f) (f->data[0]) /* CC */
+#define PORT100_FRAME_DIR_OUT 0xD6
+#define PORT100_FRAME_DIR_IN  0xD7
+
+/* Port-100 sub-command */
+#define PORT100_FRAME_CMD(f) (f->data[1]) /* SCC */
+
+#define PORT100_CMD_GET_FIRMWARE_VERSION 0x20
+#define PORT100_CMD_GET_COMMAND_TYPE     0x28
+#define PORT100_CMD_SET_COMMAND_TYPE     0x2A
+
+#define PORT100_CMD_RESPONSE(cmd) (cmd + 1)
+
+#define PORT100_CMD_TYPE_IS_SUPPORTED(mask, cmd_type) \
+	((mask) & (0x01 << (cmd_type)))
+#define PORT100_CMD_TYPE_0	0
+#define PORT100_CMD_TYPE_1	1
+
+struct port100;
+
+typedef void (*port100_send_async_complete_t)(struct port100 *dev, void *arg,
+					      struct sk_buff *resp);
+
 struct port100 {
 	struct nfc_digital_dev *nfc_digital_dev;
 
@@ -40,10 +91,537 @@ struct port100 {
 
 	struct usb_device *udev;
 	struct usb_interface *interface;
+
+	struct urb *out_urb;
+	struct urb *in_urb;
+
+	struct work_struct cmd_complete_work;
+
+	u8 cmd_type;
+
+	/* The digital stack serializes commands to be sent. There is no need
+	 * for any queuing/locking mechanism at driver level.
+	 */
+	struct port100_cmd *cmd;
+};
+
+struct port100_cmd {
+	u8 code;
+	int status;
+	struct sk_buff *req;
+	struct sk_buff *resp;
+	int resp_len;
+	port100_send_async_complete_t  complete_cb;
+	void *complete_cb_context;
+};
+
+struct port100_frame {
+	u8 preamble;
+	__be16 start_frame;
+	__be16 extended_frame;
+	__le16 datalen;
+	u8 datalen_checksum;
+	u8 data[];
+} __packed;
+
+struct port100_ack_frame {
+	u8 preamble;
+	__be16 start_frame;
+	__be16 ack_frame;
+	u8 postambule;
+} __packed;
+
+struct port100_cb_arg {
+	nfc_digital_cmd_complete_t complete_cb;
+	void *complete_arg;
+	u8 mdaa;
 };
 
+struct port100_tg_comm_rf_cmd {
+	__le16 guard_time;
+	__le16 send_timeout;
+	u8 mdaa;
+	u8 nfca_param[6];
+	u8 nfcf_param[18];
+	u8 mf_halted;
+	u8 arae_flag;
+	__le16 recv_timeout;
+	u8 data[];
+} __packed;
+
+/* The rule: value + checksum = 0 */
+static inline u8 port100_checksum(u16 value)
+{
+	return ~(((u8 *)&value)[0] + ((u8 *)&value)[1]) + 1;
+}
+
+/* The rule: sum(data elements) + checksum = 0 */
+static u8 port100_data_checksum(u8 *data, int datalen)
+{
+	u8 sum = 0;
+	int i;
+
+	for (i = 0; i < datalen; i++)
+		sum += data[i];
+
+	return port100_checksum(sum);
+}
+
+static void port100_tx_frame_init(void *_frame, u8 cmd_code)
+{
+	struct port100_frame *frame = _frame;
+
+	frame->preamble = 0;
+	frame->start_frame = cpu_to_be16(PORT100_FRAME_SOF);
+	frame->extended_frame = cpu_to_be16(PORT100_FRAME_EXT);
+	PORT100_FRAME_DIRECTION(frame) = PORT100_FRAME_DIR_OUT;
+	PORT100_FRAME_CMD(frame) = cmd_code;
+	frame->datalen = cpu_to_le16(2);
+}
+
+static void port100_tx_frame_finish(void *_frame)
+{
+	struct port100_frame *frame = _frame;
+
+	frame->datalen_checksum = port100_checksum(le16_to_cpu(frame->datalen));
+
+	PORT100_FRAME_CHECKSUM(frame) =
+		port100_data_checksum(frame->data, le16_to_cpu(frame->datalen));
+
+	PORT100_FRAME_POSTAMBLE(frame) = 0;
+}
+
+static void port100_tx_update_payload_len(void *_frame, int len)
+{
+	struct port100_frame *frame = _frame;
+
+	frame->datalen = cpu_to_le16(le16_to_cpu(frame->datalen) + len);
+}
+
+static bool port100_rx_frame_is_valid(void *_frame)
+{
+	u8 checksum;
+	struct port100_frame *frame = _frame;
+
+	if (frame->start_frame != cpu_to_be16(PORT100_FRAME_SOF) ||
+	    frame->extended_frame != cpu_to_be16(PORT100_FRAME_EXT))
+		return false;
+
+	checksum = port100_checksum(le16_to_cpu(frame->datalen));
+	if (checksum != frame->datalen_checksum)
+		return false;
+
+	checksum = port100_data_checksum(frame->data,
+					 le16_to_cpu(frame->datalen));
+	if (checksum != PORT100_FRAME_CHECKSUM(frame))
+		return false;
+
+	return true;
+}
+
+static bool port100_rx_frame_is_ack(struct port100_ack_frame *frame)
+{
+	return (frame->start_frame == cpu_to_be16(PORT100_FRAME_SOF) &&
+		frame->ack_frame == cpu_to_be16(PORT100_FRAME_ACK));
+}
+
+static inline int port100_rx_frame_size(void *frame)
+{
+	struct port100_frame *f = frame;
+
+	return sizeof(struct port100_frame) + le16_to_cpu(f->datalen) +
+	       PORT100_FRAME_TAIL_LEN;
+}
+
+static bool port100_rx_frame_is_cmd_response(struct port100 *dev, void *frame)
+{
+	struct port100_frame *f = frame;
+
+	return (PORT100_FRAME_CMD(f) == PORT100_CMD_RESPONSE(dev->cmd->code));
+}
+
+static void port100_recv_response(struct urb *urb)
+{
+	struct port100 *dev = urb->context;
+	struct port100_cmd *cmd = dev->cmd;
+	u8 *in_frame;
+
+	cmd->status = urb->status;
+
+	switch (urb->status) {
+	case 0:
+		break; /* success */
+	case -ECONNRESET:
+	case -ENOENT:
+		nfc_err(&dev->interface->dev,
+			"The urb has been canceled (status %d)", urb->status);
+		goto sched_wq;
+	case -ESHUTDOWN:
+	default:
+		nfc_err(&dev->interface->dev, "Urb failure (status %d)",
+			urb->status);
+		goto sched_wq;
+	}
+
+	in_frame = dev->in_urb->transfer_buffer;
+
+	if (!port100_rx_frame_is_valid(in_frame)) {
+		nfc_err(&dev->interface->dev, "Received an invalid frame");
+		cmd->status = -EIO;
+		goto sched_wq;
+	}
+
+	print_hex_dump_debug("PORT100 RX: ", DUMP_PREFIX_NONE, 16, 1, in_frame,
+			     port100_rx_frame_size(in_frame), false);
+
+	if (!port100_rx_frame_is_cmd_response(dev, in_frame)) {
+		nfc_err(&dev->interface->dev,
+			"It's not the response to the last command");
+		cmd->status = -EIO;
+		goto sched_wq;
+	}
+
+sched_wq:
+	schedule_work(&dev->cmd_complete_work);
+}
+
+static int port100_submit_urb_for_response(struct port100 *dev, gfp_t flags)
+{
+	dev->in_urb->complete = port100_recv_response;
+
+	return usb_submit_urb(dev->in_urb, flags);
+}
+
+static void port100_recv_ack(struct urb *urb)
+{
+	struct port100 *dev = urb->context;
+	struct port100_cmd *cmd = dev->cmd;
+	struct port100_ack_frame *in_frame;
+	int rc;
+
+	cmd->status = urb->status;
+
+	switch (urb->status) {
+	case 0:
+		break; /* success */
+	case -ECONNRESET:
+	case -ENOENT:
+		nfc_err(&dev->interface->dev,
+			"The urb has been stopped (status %d)", urb->status);
+		goto sched_wq;
+	case -ESHUTDOWN:
+	default:
+		nfc_err(&dev->interface->dev, "Urb failure (status %d)",
+			urb->status);
+		goto sched_wq;
+	}
+
+	in_frame = dev->in_urb->transfer_buffer;
+
+	if (!port100_rx_frame_is_ack(in_frame)) {
+		nfc_err(&dev->interface->dev, "Received an invalid ack");
+		cmd->status = -EIO;
+		goto sched_wq;
+	}
+
+	rc = port100_submit_urb_for_response(dev, GFP_ATOMIC);
+	if (rc) {
+		nfc_err(&dev->interface->dev,
+			"usb_submit_urb failed with result %d", rc);
+		cmd->status = rc;
+		goto sched_wq;
+	}
+
+	return;
+
+sched_wq:
+	schedule_work(&dev->cmd_complete_work);
+}
+
+static int port100_submit_urb_for_ack(struct port100 *dev, gfp_t flags)
+{
+	dev->in_urb->complete = port100_recv_ack;
+
+	return usb_submit_urb(dev->in_urb, flags);
+}
+
+static int port100_send_ack(struct port100 *dev)
+{
+	int rc;
+
+	dev->out_urb->transfer_buffer = ack_frame;
+	dev->out_urb->transfer_buffer_length = sizeof(ack_frame);
+	rc = usb_submit_urb(dev->out_urb, GFP_KERNEL);
+
+	return rc;
+}
+
+static int port100_send_frame_async(struct port100 *dev, struct sk_buff *out,
+				    struct sk_buff *in, int in_len)
+{
+	int rc;
+
+	dev->out_urb->transfer_buffer = out->data;
+	dev->out_urb->transfer_buffer_length = out->len;
+
+	dev->in_urb->transfer_buffer = in->data;
+	dev->in_urb->transfer_buffer_length = in_len;
+
+	print_hex_dump_debug("PORT100 TX: ", DUMP_PREFIX_NONE, 16, 1,
+			     out->data, out->len, false);
+
+	rc = usb_submit_urb(dev->out_urb, GFP_KERNEL);
+	if (rc)
+		return rc;
+
+	rc = port100_submit_urb_for_ack(dev, GFP_KERNEL);
+	if (rc)
+		goto error;
+
+	return 0;
+
+error:
+	usb_unlink_urb(dev->out_urb);
+	return rc;
+}
+
+static void port100_build_cmd_frame(struct port100 *dev, u8 cmd_code,
+				    struct sk_buff *skb)
+{
+	/* payload is already there, just update datalen */
+	int payload_len = skb->len;
+
+	skb_push(skb, PORT100_FRAME_HEADER_LEN);
+	skb_put(skb, PORT100_FRAME_TAIL_LEN);
+
+	port100_tx_frame_init(skb->data, cmd_code);
+	port100_tx_update_payload_len(skb->data, payload_len);
+	port100_tx_frame_finish(skb->data);
+}
+
+static void port100_send_async_complete(struct port100 *dev)
+{
+	struct port100_cmd *cmd = dev->cmd;
+	int status = cmd->status;
+
+	struct sk_buff *req = cmd->req;
+	struct sk_buff *resp = cmd->resp;
+
+	dev_kfree_skb(req);
+
+	dev->cmd = NULL;
+
+	if (status < 0) {
+		cmd->complete_cb(dev, cmd->complete_cb_context,
+				 ERR_PTR(status));
+		dev_kfree_skb(resp);
+		goto done;
+	}
+
+	skb_put(resp, port100_rx_frame_size(resp->data));
+	skb_pull(resp, PORT100_FRAME_HEADER_LEN);
+	skb_trim(resp, resp->len - PORT100_FRAME_TAIL_LEN);
+
+	cmd->complete_cb(dev, cmd->complete_cb_context, resp);
+
+done:
+	kfree(cmd);
+}
+
+static int port100_send_cmd_async(struct port100 *dev, u8 cmd_code,
+				struct sk_buff *req,
+				port100_send_async_complete_t complete_cb,
+				void *complete_cb_context)
+{
+	struct port100_cmd *cmd;
+	struct sk_buff *resp;
+	int rc;
+	int  resp_len = PORT100_FRAME_HEADER_LEN +
+			PORT100_FRAME_MAX_PAYLOAD_LEN +
+			PORT100_FRAME_TAIL_LEN;
+
+	resp = alloc_skb(resp_len, GFP_KERNEL);
+	if (!resp)
+		return -ENOMEM;
+
+	cmd = kzalloc(sizeof(*cmd), GFP_KERNEL);
+	if (!cmd) {
+		dev_kfree_skb(resp);
+		return -ENOMEM;
+	}
+
+	cmd->code = cmd_code;
+	cmd->req = req;
+	cmd->resp = resp;
+	cmd->resp_len = resp_len;
+	cmd->complete_cb = complete_cb;
+	cmd->complete_cb_context = complete_cb_context;
+
+	port100_build_cmd_frame(dev, cmd_code, req);
+
+	dev->cmd = cmd;
+
+	rc = port100_send_frame_async(dev, req, resp, resp_len);
+	if (rc) {
+		kfree(cmd);
+		dev_kfree_skb(resp);
+		dev->cmd = NULL;
+	}
+
+	return rc;
+}
+
+struct port100_sync_cmd_response {
+	struct sk_buff *resp;
+	struct completion done;
+};
+
+static void port100_wq_cmd_complete(struct work_struct *work)
+{
+	struct port100 *dev = container_of(work, struct port100,
+					   cmd_complete_work);
+
+	port100_send_async_complete(dev);
+}
+
+static void port100_send_sync_complete(struct port100 *dev, void *_arg,
+				      struct sk_buff *resp)
+{
+	struct port100_sync_cmd_response *arg = _arg;
+
+	arg->resp = resp;
+	complete(&arg->done);
+}
+
+static struct sk_buff *port100_send_cmd_sync(struct port100 *dev, u8 cmd_code,
+					     struct sk_buff *req)
+{
+	int rc;
+	struct port100_sync_cmd_response arg;
+
+	init_completion(&arg.done);
+
+	rc = port100_send_cmd_async(dev, cmd_code, req,
+				    port100_send_sync_complete, &arg);
+	if (rc) {
+		dev_kfree_skb(req);
+		return ERR_PTR(rc);
+	}
+
+	wait_for_completion(&arg.done);
+
+	return arg.resp;
+}
+
+static void port100_send_complete(struct urb *urb)
+{
+	struct port100 *dev = urb->context;
+
+	switch (urb->status) {
+	case 0:
+		break; /* success */
+	case -ECONNRESET:
+	case -ENOENT:
+		nfc_err(&dev->interface->dev,
+			"The urb has been stopped (status %d)", urb->status);
+		break;
+	case -ESHUTDOWN:
+	default:
+		nfc_err(&dev->interface->dev, "Urb failure (status %d)",
+			urb->status);
+	}
+}
+
 static void port100_abort_cmd(struct nfc_digital_dev *ddev)
 {
+	struct port100 *dev = nfc_digital_get_drvdata(ddev);
+
+	/* An ack will cancel the last issued command */
+	port100_send_ack(dev);
+
+	/* cancel the urb request */
+	usb_kill_urb(dev->in_urb);
+}
+
+static struct sk_buff *port100_alloc_skb(struct port100 *dev, unsigned int size)
+{
+	struct sk_buff *skb;
+
+	skb = alloc_skb(dev->skb_headroom + dev->skb_tailroom + size,
+			GFP_KERNEL);
+	if (skb)
+		skb_reserve(skb, dev->skb_headroom);
+
+	return skb;
+}
+
+static int port100_set_command_type(struct port100 *dev, u8 command_type)
+{
+	struct sk_buff *skb;
+	struct sk_buff *resp;
+	int rc;
+
+	skb = port100_alloc_skb(dev, 1);
+	if (!skb)
+		return -ENOMEM;
+
+	*skb_put(skb, sizeof(u8)) = command_type;
+
+	resp = port100_send_cmd_sync(dev, PORT100_CMD_SET_COMMAND_TYPE, skb);
+	if (IS_ERR(resp))
+		return PTR_ERR(resp);
+
+	rc = resp->data[0];
+
+	dev_kfree_skb(resp);
+
+	return rc;
+}
+
+static u64 port100_get_command_type_mask(struct port100 *dev)
+{
+	struct sk_buff *skb;
+	struct sk_buff *resp;
+	u64 mask;
+
+	skb = port100_alloc_skb(dev, 0);
+	if (!skb)
+		return -ENOMEM;
+
+	resp = port100_send_cmd_sync(dev, PORT100_CMD_GET_COMMAND_TYPE, skb);
+	if (IS_ERR(resp))
+		return PTR_ERR(resp);
+
+	if (resp->len < 8)
+		mask = 0;
+	else
+		mask = be64_to_cpu(*(__be64 *)resp->data);
+
+	dev_kfree_skb(resp);
+
+	return mask;
+}
+
+static u16 port100_get_firmware_version(struct port100 *dev)
+{
+	struct sk_buff *skb;
+	struct sk_buff *resp;
+	u16 fw_ver;
+
+	skb = port100_alloc_skb(dev, 0);
+	if (!skb)
+		return 0;
+
+	resp = port100_send_cmd_sync(dev, PORT100_CMD_GET_FIRMWARE_VERSION,
+				     skb);
+	if (IS_ERR(resp))
+		return 0;
+
+	fw_ver = le16_to_cpu(*(__le16 *)resp->data);
+
+	dev_kfree_skb(resp);
+
+	return fw_ver;
 }
 
 static int port100_switch_rf(struct nfc_digital_dev *ddev, bool on)
@@ -118,6 +696,13 @@ static int port100_probe(struct usb_interface *interface,
 {
 	struct port100 *dev;
 	int rc;
+	struct usb_host_interface *iface_desc;
+	struct usb_endpoint_descriptor *endpoint;
+	int in_endpoint;
+	int out_endpoint;
+	u16 fw_version;
+	u64 cmd_type_mask;
+	int i;
 
 	dev = devm_kzalloc(&interface->dev, sizeof(struct port100), GFP_KERNEL);
 	if (!dev)
@@ -127,7 +712,79 @@ static int port100_probe(struct usb_interface *interface,
 	dev->interface = interface;
 	usb_set_intfdata(interface, dev);
 
-	nfc_info(&interface->dev, "Sony NFC Port-100 Series attached\n");
+	in_endpoint = out_endpoint = 0;
+	iface_desc = interface->cur_altsetting;
+	for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
+		endpoint = &iface_desc->endpoint[i].desc;
+
+		if (!in_endpoint && usb_endpoint_is_bulk_in(endpoint))
+			in_endpoint = endpoint->bEndpointAddress;
+
+		if (!out_endpoint && usb_endpoint_is_bulk_out(endpoint))
+			out_endpoint = endpoint->bEndpointAddress;
+	}
+
+	if (!in_endpoint || !out_endpoint) {
+		nfc_err(&interface->dev,
+			"Could not find bulk-in or bulk-out endpoint\n");
+		rc = -ENODEV;
+		goto error;
+	}
+
+	dev->in_urb = usb_alloc_urb(0, GFP_KERNEL);
+	dev->out_urb = usb_alloc_urb(0, GFP_KERNEL);
+
+	if (!dev->in_urb || !dev->out_urb) {
+		nfc_err(&interface->dev, "Could not allocate USB URBs\n");
+		rc = -ENOMEM;
+		goto error;
+	}
+
+	usb_fill_bulk_urb(dev->in_urb, dev->udev,
+			  usb_rcvbulkpipe(dev->udev, in_endpoint),
+			  NULL, 0, NULL, dev);
+	usb_fill_bulk_urb(dev->out_urb, dev->udev,
+			  usb_sndbulkpipe(dev->udev, out_endpoint),
+			  NULL, 0, port100_send_complete, dev);
+
+	dev->skb_headroom = PORT100_FRAME_HEADER_LEN +
+			    PORT100_COMM_RF_HEAD_MAX_LEN;
+	dev->skb_tailroom = PORT100_FRAME_TAIL_LEN;
+
+	INIT_WORK(&dev->cmd_complete_work, port100_wq_cmd_complete);
+
+	/* The first thing to do with the Port-100 is to set the command type
+	 * to be used. If supported we use command type 1. 0 otherwise.
+	 */
+	cmd_type_mask = port100_get_command_type_mask(dev);
+	if (!cmd_type_mask) {
+		nfc_err(&interface->dev,
+			"Could not get supported command types.\n");
+		rc = -ENODEV;
+		goto error;
+	}
+
+	if (PORT100_CMD_TYPE_IS_SUPPORTED(cmd_type_mask, PORT100_CMD_TYPE_1))
+		dev->cmd_type = PORT100_CMD_TYPE_1;
+	else
+		dev->cmd_type = PORT100_CMD_TYPE_0;
+
+	rc = port100_set_command_type(dev, dev->cmd_type);
+	if (rc) {
+		nfc_err(&interface->dev,
+			"The device does not support command type %u.\n",
+			dev->cmd_type);
+		goto error;
+	}
+
+	fw_version = port100_get_firmware_version(dev);
+	if (!fw_version)
+		nfc_err(&interface->dev,
+			"Could not get device firmware version.\n");
+
+	nfc_info(&interface->dev,
+		 "Sony NFC Port-100 Series attached (firmware v%x.%02x)\n",
+		 (fw_version & 0xFF00) >> 8, fw_version & 0xFF);
 
 	dev->nfc_digital_dev = nfc_digital_allocate_device(&port100_digital_ops,
 							   PORT100_PROTOCOLS,
@@ -157,6 +814,10 @@ free_nfc_dev:
 	nfc_digital_free_device(dev->nfc_digital_dev);
 
 error:
+	usb_free_urb(dev->in_urb);
+	usb_free_urb(dev->out_urb);
+	usb_put_dev(dev->udev);
+
 	return rc;
 }
 
@@ -170,6 +831,14 @@ static void port100_disconnect(struct usb_interface *interface)
 	nfc_digital_unregister_device(dev->nfc_digital_dev);
 	nfc_digital_free_device(dev->nfc_digital_dev);
 
+	usb_kill_urb(dev->in_urb);
+	usb_kill_urb(dev->out_urb);
+
+	usb_free_urb(dev->in_urb);
+	usb_free_urb(dev->out_urb);
+
+	kfree(dev->cmd);
+
 	nfc_info(&interface->dev, "Sony Port-100 NFC device disconnected");
 }
 
-- 
cgit 


From 9f7b57f28cb7513d3245e74cd7536304306d1cc0 Mon Sep 17 00:00:00 2001
From: Thierry Escande <thierry.escande@linux.intel.com>
Date: Fri, 4 Oct 2013 12:12:02 +0200
Subject: NFC: port100: Add initiator mode support

This patch implements the initiator NFC operations in_configure_hw()
and in_send_cmd(). It also implements the switch_rf() operation.

The initiator mode supports NFC-A technology at 106kbits/s and NFC-F
technologies at 212 and 424kbits/s.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Cc: Stephen Tiedemann <stephen.tiedemann@gmail.com>
Tested-by: Cho, Yu-Chen <acho@suse.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/nfc/port100.c | 366 +++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 363 insertions(+), 3 deletions(-)

diff --git a/drivers/nfc/port100.c b/drivers/nfc/port100.c
index 251a2c112299..99a6dd79393d 100644
--- a/drivers/nfc/port100.c
+++ b/drivers/nfc/port100.c
@@ -71,6 +71,12 @@ static u8 ack_frame[PORT100_FRAME_ACK_SIZE] = {
 #define PORT100_CMD_GET_COMMAND_TYPE     0x28
 #define PORT100_CMD_SET_COMMAND_TYPE     0x2A
 
+#define PORT100_CMD_IN_SET_RF       0x00
+#define PORT100_CMD_IN_SET_PROTOCOL 0x02
+#define PORT100_CMD_IN_COMM_RF      0x04
+
+#define PORT100_CMD_SWITCH_RF       0x06
+
 #define PORT100_CMD_RESPONSE(cmd) (cmd + 1)
 
 #define PORT100_CMD_TYPE_IS_SUPPORTED(mask, cmd_type) \
@@ -78,11 +84,204 @@ static u8 ack_frame[PORT100_FRAME_ACK_SIZE] = {
 #define PORT100_CMD_TYPE_0	0
 #define PORT100_CMD_TYPE_1	1
 
+#define PORT100_CMD_STATUS_OK      0x00
+#define PORT100_CMD_STATUS_TIMEOUT 0x80
+
 struct port100;
 
 typedef void (*port100_send_async_complete_t)(struct port100 *dev, void *arg,
 					      struct sk_buff *resp);
 
+/**
+ * Setting sets structure for in_set_rf command
+ *
+ * @in_*_set_number: Represent the entry indexes in the port-100 RF Base Table.
+ *              This table contains multiple RF setting sets required for RF
+ *              communication.
+ *
+ * @in_*_comm_type: Theses fields set the communication type to be used.
+ */
+struct port100_in_rf_setting {
+	u8 in_send_set_number;
+	u8 in_send_comm_type;
+	u8 in_recv_set_number;
+	u8 in_recv_comm_type;
+} __packed;
+
+#define PORT100_COMM_TYPE_IN_212F 0x01
+#define PORT100_COMM_TYPE_IN_424F 0x02
+#define PORT100_COMM_TYPE_IN_106A 0x03
+
+static const struct port100_in_rf_setting in_rf_settings[] = {
+	[NFC_DIGITAL_RF_TECH_212F] = {
+		.in_send_set_number = 1,
+		.in_send_comm_type  = PORT100_COMM_TYPE_IN_212F,
+		.in_recv_set_number = 15,
+		.in_recv_comm_type  = PORT100_COMM_TYPE_IN_212F,
+	},
+	[NFC_DIGITAL_RF_TECH_424F] = {
+		.in_send_set_number = 1,
+		.in_send_comm_type  = PORT100_COMM_TYPE_IN_424F,
+		.in_recv_set_number = 15,
+		.in_recv_comm_type  = PORT100_COMM_TYPE_IN_424F,
+	},
+	[NFC_DIGITAL_RF_TECH_106A] = {
+		.in_send_set_number = 2,
+		.in_send_comm_type  = PORT100_COMM_TYPE_IN_106A,
+		.in_recv_set_number = 15,
+		.in_recv_comm_type  = PORT100_COMM_TYPE_IN_106A,
+	},
+};
+
+#define PORT100_IN_PROT_INITIAL_GUARD_TIME      0x00
+#define PORT100_IN_PROT_ADD_CRC                 0x01
+#define PORT100_IN_PROT_CHECK_CRC               0x02
+#define PORT100_IN_PROT_MULTI_CARD              0x03
+#define PORT100_IN_PROT_ADD_PARITY              0x04
+#define PORT100_IN_PROT_CHECK_PARITY            0x05
+#define PORT100_IN_PROT_BITWISE_AC_RECV_MODE    0x06
+#define PORT100_IN_PROT_VALID_BIT_NUMBER        0x07
+#define PORT100_IN_PROT_CRYPTO1                 0x08
+#define PORT100_IN_PROT_ADD_SOF                 0x09
+#define PORT100_IN_PROT_CHECK_SOF               0x0A
+#define PORT100_IN_PROT_ADD_EOF                 0x0B
+#define PORT100_IN_PROT_CHECK_EOF               0x0C
+#define PORT100_IN_PROT_DEAF_TIME               0x0E
+#define PORT100_IN_PROT_CRM                     0x0F
+#define PORT100_IN_PROT_CRM_MIN_LEN             0x10
+#define PORT100_IN_PROT_T1_TAG_FRAME            0x11
+#define PORT100_IN_PROT_RFCA                    0x12
+#define PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR 0x13
+#define PORT100_IN_PROT_END                     0x14
+
+#define PORT100_IN_MAX_NUM_PROTOCOLS            19
+
+struct port100_protocol {
+	u8 number;
+	u8 value;
+} __packed;
+
+static struct port100_protocol
+in_protocols[][PORT100_IN_MAX_NUM_PROTOCOLS + 1] = {
+	[NFC_DIGITAL_FRAMING_NFCA_SHORT] = {
+		{ PORT100_IN_PROT_INITIAL_GUARD_TIME,      6 },
+		{ PORT100_IN_PROT_ADD_CRC,                 0 },
+		{ PORT100_IN_PROT_CHECK_CRC,               0 },
+		{ PORT100_IN_PROT_MULTI_CARD,              0 },
+		{ PORT100_IN_PROT_ADD_PARITY,              0 },
+		{ PORT100_IN_PROT_CHECK_PARITY,            1 },
+		{ PORT100_IN_PROT_BITWISE_AC_RECV_MODE,    0 },
+		{ PORT100_IN_PROT_VALID_BIT_NUMBER,        7 },
+		{ PORT100_IN_PROT_CRYPTO1,                 0 },
+		{ PORT100_IN_PROT_ADD_SOF,                 0 },
+		{ PORT100_IN_PROT_CHECK_SOF,               0 },
+		{ PORT100_IN_PROT_ADD_EOF,                 0 },
+		{ PORT100_IN_PROT_CHECK_EOF,               0 },
+		{ PORT100_IN_PROT_DEAF_TIME,               4 },
+		{ PORT100_IN_PROT_CRM,                     0 },
+		{ PORT100_IN_PROT_CRM_MIN_LEN,             0 },
+		{ PORT100_IN_PROT_T1_TAG_FRAME,            0 },
+		{ PORT100_IN_PROT_RFCA,                    0 },
+		{ PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 },
+		{ PORT100_IN_PROT_END,                     0 },
+	},
+	[NFC_DIGITAL_FRAMING_NFCA_STANDARD] = {
+		{ PORT100_IN_PROT_INITIAL_GUARD_TIME,      6 },
+		{ PORT100_IN_PROT_ADD_CRC,                 0 },
+		{ PORT100_IN_PROT_CHECK_CRC,               0 },
+		{ PORT100_IN_PROT_MULTI_CARD,              0 },
+		{ PORT100_IN_PROT_ADD_PARITY,              1 },
+		{ PORT100_IN_PROT_CHECK_PARITY,            1 },
+		{ PORT100_IN_PROT_BITWISE_AC_RECV_MODE,    0 },
+		{ PORT100_IN_PROT_VALID_BIT_NUMBER,        8 },
+		{ PORT100_IN_PROT_CRYPTO1,                 0 },
+		{ PORT100_IN_PROT_ADD_SOF,                 0 },
+		{ PORT100_IN_PROT_CHECK_SOF,               0 },
+		{ PORT100_IN_PROT_ADD_EOF,                 0 },
+		{ PORT100_IN_PROT_CHECK_EOF,               0 },
+		{ PORT100_IN_PROT_DEAF_TIME,               4 },
+		{ PORT100_IN_PROT_CRM,                     0 },
+		{ PORT100_IN_PROT_CRM_MIN_LEN,             0 },
+		{ PORT100_IN_PROT_T1_TAG_FRAME,            0 },
+		{ PORT100_IN_PROT_RFCA,                    0 },
+		{ PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 },
+		{ PORT100_IN_PROT_END,                     0 },
+	},
+	[NFC_DIGITAL_FRAMING_NFCA_STANDARD_WITH_CRC_A] = {
+		{ PORT100_IN_PROT_INITIAL_GUARD_TIME,      6 },
+		{ PORT100_IN_PROT_ADD_CRC,                 1 },
+		{ PORT100_IN_PROT_CHECK_CRC,               1 },
+		{ PORT100_IN_PROT_MULTI_CARD,              0 },
+		{ PORT100_IN_PROT_ADD_PARITY,              1 },
+		{ PORT100_IN_PROT_CHECK_PARITY,            1 },
+		{ PORT100_IN_PROT_BITWISE_AC_RECV_MODE,    0 },
+		{ PORT100_IN_PROT_VALID_BIT_NUMBER,        8 },
+		{ PORT100_IN_PROT_CRYPTO1,                 0 },
+		{ PORT100_IN_PROT_ADD_SOF,                 0 },
+		{ PORT100_IN_PROT_CHECK_SOF,               0 },
+		{ PORT100_IN_PROT_ADD_EOF,                 0 },
+		{ PORT100_IN_PROT_CHECK_EOF,               0 },
+		{ PORT100_IN_PROT_DEAF_TIME,               4 },
+		{ PORT100_IN_PROT_CRM,                     0 },
+		{ PORT100_IN_PROT_CRM_MIN_LEN,             0 },
+		{ PORT100_IN_PROT_T1_TAG_FRAME,            0 },
+		{ PORT100_IN_PROT_RFCA,                    0 },
+		{ PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 },
+		{ PORT100_IN_PROT_END,                     0 },
+	},
+	[NFC_DIGITAL_FRAMING_NFCA_T1T] = {
+		/* nfc_digital_framing_nfca_short */
+		{ PORT100_IN_PROT_ADD_CRC,          2 },
+		{ PORT100_IN_PROT_CHECK_CRC,        2 },
+		{ PORT100_IN_PROT_VALID_BIT_NUMBER, 8 },
+		{ PORT100_IN_PROT_T1_TAG_FRAME,     2 },
+		{ PORT100_IN_PROT_END,              0 },
+	},
+	[NFC_DIGITAL_FRAMING_NFCA_T2T] = {
+		/* nfc_digital_framing_nfca_standard */
+		{ PORT100_IN_PROT_ADD_CRC,   1 },
+		{ PORT100_IN_PROT_CHECK_CRC, 0 },
+		{ PORT100_IN_PROT_END,       0 },
+	},
+	[NFC_DIGITAL_FRAMING_NFCA_NFC_DEP] = {
+		/* nfc_digital_framing_nfca_standard */
+		{ PORT100_IN_PROT_END, 0 },
+	},
+	[NFC_DIGITAL_FRAMING_NFCF] = {
+		{ PORT100_IN_PROT_INITIAL_GUARD_TIME,     18 },
+		{ PORT100_IN_PROT_ADD_CRC,                 1 },
+		{ PORT100_IN_PROT_CHECK_CRC,               1 },
+		{ PORT100_IN_PROT_MULTI_CARD,              0 },
+		{ PORT100_IN_PROT_ADD_PARITY,              0 },
+		{ PORT100_IN_PROT_CHECK_PARITY,            0 },
+		{ PORT100_IN_PROT_BITWISE_AC_RECV_MODE,    0 },
+		{ PORT100_IN_PROT_VALID_BIT_NUMBER,        8 },
+		{ PORT100_IN_PROT_CRYPTO1,                 0 },
+		{ PORT100_IN_PROT_ADD_SOF,                 0 },
+		{ PORT100_IN_PROT_CHECK_SOF,               0 },
+		{ PORT100_IN_PROT_ADD_EOF,                 0 },
+		{ PORT100_IN_PROT_CHECK_EOF,               0 },
+		{ PORT100_IN_PROT_DEAF_TIME,               4 },
+		{ PORT100_IN_PROT_CRM,                     0 },
+		{ PORT100_IN_PROT_CRM_MIN_LEN,             0 },
+		{ PORT100_IN_PROT_T1_TAG_FRAME,            0 },
+		{ PORT100_IN_PROT_RFCA,                    0 },
+		{ PORT100_IN_PROT_GUARD_TIME_AT_INITIATOR, 6 },
+		{ PORT100_IN_PROT_END,                     0 },
+	},
+	[NFC_DIGITAL_FRAMING_NFCF_T3T] = {
+		/* nfc_digital_framing_nfcf */
+		{ PORT100_IN_PROT_END, 0 },
+	},
+	[NFC_DIGITAL_FRAMING_NFCF_NFC_DEP] = {
+		/* nfc_digital_framing_nfcf */
+		{ PORT100_IN_PROT_END, 0 },
+	},
+	[NFC_DIGITAL_FRAMING_NFC_DEP_ACTIVATED] = {
+		{ PORT100_IN_PROT_END, 0 },
+	},
+};
+
 struct port100 {
 	struct nfc_digital_dev *nfc_digital_dev;
 
@@ -626,20 +825,181 @@ static u16 port100_get_firmware_version(struct port100 *dev)
 
 static int port100_switch_rf(struct nfc_digital_dev *ddev, bool on)
 {
-	return -EOPNOTSUPP;
+	struct port100 *dev = nfc_digital_get_drvdata(ddev);
+	struct sk_buff *skb, *resp;
+
+	skb = port100_alloc_skb(dev, 1);
+	if (!skb)
+		return -ENOMEM;
+
+	*skb_put(skb, 1) = on ? 1 : 0;
+
+	resp = port100_send_cmd_sync(dev, PORT100_CMD_SWITCH_RF, skb);
+
+	if (IS_ERR(resp))
+		return PTR_ERR(resp);
+
+	dev_kfree_skb(resp);
+
+	return 0;
+}
+
+static int port100_in_set_rf(struct nfc_digital_dev *ddev, u8 rf)
+{
+	struct port100 *dev = nfc_digital_get_drvdata(ddev);
+	struct sk_buff *skb;
+	struct sk_buff *resp;
+	int rc;
+
+	if (rf >= NFC_DIGITAL_RF_TECH_LAST)
+		return -EINVAL;
+
+	skb = port100_alloc_skb(dev, sizeof(struct port100_in_rf_setting));
+	if (!skb)
+		return -ENOMEM;
+
+	memcpy(skb_put(skb, sizeof(struct port100_in_rf_setting)),
+	       &in_rf_settings[rf],
+	       sizeof(struct port100_in_rf_setting));
+
+	resp = port100_send_cmd_sync(dev, PORT100_CMD_IN_SET_RF, skb);
+
+	if (IS_ERR(resp))
+		return PTR_ERR(resp);
+
+	rc = resp->data[0];
+
+	dev_kfree_skb(resp);
+
+	return rc;
+}
+
+static int port100_in_set_framing(struct nfc_digital_dev *ddev, int param)
+{
+	struct port100 *dev = nfc_digital_get_drvdata(ddev);
+	struct port100_protocol *protocols;
+	struct sk_buff *skb;
+	struct sk_buff *resp;
+	int num_protocols;
+	size_t size;
+	int rc;
+
+	if (param >= NFC_DIGITAL_FRAMING_LAST)
+		return -EINVAL;
+
+	protocols = in_protocols[param];
+
+	num_protocols = 0;
+	while (protocols[num_protocols].number != PORT100_IN_PROT_END)
+		num_protocols++;
+
+	if (!num_protocols)
+		return 0;
+
+	size = sizeof(struct port100_protocol) * num_protocols;
+
+	skb = port100_alloc_skb(dev, size);
+	if (!skb)
+		return -ENOMEM;
+
+	memcpy(skb_put(skb, size), protocols, size);
+
+	resp = port100_send_cmd_sync(dev, PORT100_CMD_IN_SET_PROTOCOL, skb);
+
+	if (IS_ERR(resp))
+		return PTR_ERR(resp);
+
+	rc = resp->data[0];
+
+	dev_kfree_skb(resp);
+
+	return rc;
 }
 
 static int port100_in_configure_hw(struct nfc_digital_dev *ddev, int type,
 				   int param)
 {
-	return -EOPNOTSUPP;
+	if (type == NFC_DIGITAL_CONFIG_RF_TECH)
+		return port100_in_set_rf(ddev, param);
+
+	if (type == NFC_DIGITAL_CONFIG_FRAMING)
+		return port100_in_set_framing(ddev, param);
+
+	return -EINVAL;
+}
+
+static void port100_in_comm_rf_complete(struct port100 *dev, void *arg,
+				       struct sk_buff *resp)
+{
+	struct port100_cb_arg *cb_arg = arg;
+	nfc_digital_cmd_complete_t cb = cb_arg->complete_cb;
+	u32 status;
+	int rc;
+
+	if (IS_ERR(resp)) {
+		rc =  PTR_ERR(resp);
+		goto exit;
+	}
+
+	if (resp->len < 4) {
+		nfc_err(&dev->interface->dev,
+			"Invalid packet length received.\n");
+		rc = -EIO;
+		goto error;
+	}
+
+	status = le32_to_cpu(*(__le32 *)resp->data);
+
+	skb_pull(resp, sizeof(u32));
+
+	if (status == PORT100_CMD_STATUS_TIMEOUT) {
+		rc = -ETIMEDOUT;
+		goto error;
+	}
+
+	if (status != PORT100_CMD_STATUS_OK) {
+		nfc_err(&dev->interface->dev,
+			"in_comm_rf failed with status 0x%08x\n", status);
+		rc = -EIO;
+		goto error;
+	}
+
+	/* Remove collision bits byte */
+	skb_pull(resp, 1);
+
+	goto exit;
+
+error:
+	kfree_skb(resp);
+	resp = ERR_PTR(rc);
+
+exit:
+	cb(dev->nfc_digital_dev, cb_arg->complete_arg, resp);
+
+	kfree(cb_arg);
 }
 
 static int port100_in_send_cmd(struct nfc_digital_dev *ddev,
 			       struct sk_buff *skb, u16 _timeout,
 			       nfc_digital_cmd_complete_t cb, void *arg)
 {
-	return -EOPNOTSUPP;
+	struct port100 *dev = nfc_digital_get_drvdata(ddev);
+	struct port100_cb_arg *cb_arg;
+	__le16 timeout;
+
+	cb_arg = kzalloc(sizeof(struct port100_cb_arg), GFP_KERNEL);
+	if (!cb_arg)
+		return -ENOMEM;
+
+	cb_arg->complete_cb = cb;
+	cb_arg->complete_arg = arg;
+
+	timeout = cpu_to_le16(_timeout * 10);
+
+	memcpy(skb_push(skb, sizeof(__le16)), &timeout, sizeof(__le16));
+
+	return port100_send_cmd_async(dev, PORT100_CMD_IN_COMM_RF, skb,
+				      port100_in_comm_rf_complete, cb_arg);
 }
 
 static int port100_tg_configure_hw(struct nfc_digital_dev *ddev, int type,
-- 
cgit 


From 7227c0216d2f879d548e8028dc0298a6156ae633 Mon Sep 17 00:00:00 2001
From: Thierry Escande <thierry.escande@linux.intel.com>
Date: Fri, 4 Oct 2013 12:12:03 +0200
Subject: NFC: port100: Add target mode support

This implements the target NFC digital operations tg_configure_hw(),
tg_listen(), tg_listen_mdaa(), and tg_send_cmd().

The target mode supports NFC-A technology at 106kbits/s and NFC-F
technologies at 212 and 424kbits/s.

Signed-off-by: Thierry Escande <thierry.escande@linux.intel.com>
Cc: Stephen Tiedemann <stephen.tiedemann@gmail.com>
Tested-by: Cho, Yu-Chen <acho@suse.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/nfc/port100.c | 321 +++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 317 insertions(+), 4 deletions(-)

diff --git a/drivers/nfc/port100.c b/drivers/nfc/port100.c
index 99a6dd79393d..8a0571eb2627 100644
--- a/drivers/nfc/port100.c
+++ b/drivers/nfc/port100.c
@@ -75,6 +75,11 @@ static u8 ack_frame[PORT100_FRAME_ACK_SIZE] = {
 #define PORT100_CMD_IN_SET_PROTOCOL 0x02
 #define PORT100_CMD_IN_COMM_RF      0x04
 
+#define PORT100_CMD_TG_SET_RF       0x40
+#define PORT100_CMD_TG_SET_PROTOCOL 0x42
+#define PORT100_CMD_TG_SET_RF_OFF   0x46
+#define PORT100_CMD_TG_COMM_RF      0x48
+
 #define PORT100_CMD_SWITCH_RF       0x06
 
 #define PORT100_CMD_RESPONSE(cmd) (cmd + 1)
@@ -87,6 +92,9 @@ static u8 ack_frame[PORT100_FRAME_ACK_SIZE] = {
 #define PORT100_CMD_STATUS_OK      0x00
 #define PORT100_CMD_STATUS_TIMEOUT 0x80
 
+#define PORT100_MDAA_TGT_HAS_BEEN_ACTIVATED_MASK 0x01
+#define PORT100_MDAA_TGT_WAS_ACTIVATED_MASK      0x02
+
 struct port100;
 
 typedef void (*port100_send_async_complete_t)(struct port100 *dev, void *arg,
@@ -133,6 +141,41 @@ static const struct port100_in_rf_setting in_rf_settings[] = {
 	},
 };
 
+/**
+ * Setting sets structure for tg_set_rf command
+ *
+ * @tg_set_number: Represents the entry index in the port-100 RF Base Table.
+ *                 This table contains multiple RF setting sets required for RF
+ *                 communication. this field is used for both send and receive
+ *                 settings.
+ *
+ * @tg_comm_type: Sets the communication type to be used to send and receive
+ *                data.
+ */
+struct port100_tg_rf_setting {
+	u8 tg_set_number;
+	u8 tg_comm_type;
+} __packed;
+
+#define PORT100_COMM_TYPE_TG_106A 0x0B
+#define PORT100_COMM_TYPE_TG_212F 0x0C
+#define PORT100_COMM_TYPE_TG_424F 0x0D
+
+static const struct port100_tg_rf_setting tg_rf_settings[] = {
+	[NFC_DIGITAL_RF_TECH_106A] = {
+		.tg_set_number = 8,
+		.tg_comm_type = PORT100_COMM_TYPE_TG_106A,
+	},
+	[NFC_DIGITAL_RF_TECH_212F] = {
+		.tg_set_number = 8,
+		.tg_comm_type = PORT100_COMM_TYPE_TG_212F,
+	},
+	[NFC_DIGITAL_RF_TECH_424F] = {
+		.tg_set_number = 8,
+		.tg_comm_type = PORT100_COMM_TYPE_TG_424F,
+	},
+};
+
 #define PORT100_IN_PROT_INITIAL_GUARD_TIME      0x00
 #define PORT100_IN_PROT_ADD_CRC                 0x01
 #define PORT100_IN_PROT_CHECK_CRC               0x02
@@ -156,6 +199,13 @@ static const struct port100_in_rf_setting in_rf_settings[] = {
 
 #define PORT100_IN_MAX_NUM_PROTOCOLS            19
 
+#define PORT100_TG_PROT_TU           0x00
+#define PORT100_TG_PROT_RF_OFF       0x01
+#define PORT100_TG_PROT_CRM          0x02
+#define PORT100_TG_PROT_END          0x03
+
+#define PORT100_TG_MAX_NUM_PROTOCOLS 3
+
 struct port100_protocol {
 	u8 number;
 	u8 value;
@@ -282,6 +332,47 @@ in_protocols[][PORT100_IN_MAX_NUM_PROTOCOLS + 1] = {
 	},
 };
 
+static struct port100_protocol
+tg_protocols[][PORT100_TG_MAX_NUM_PROTOCOLS + 1] = {
+	[NFC_DIGITAL_FRAMING_NFCA_SHORT] = {
+		{ PORT100_TG_PROT_END, 0 },
+	},
+	[NFC_DIGITAL_FRAMING_NFCA_STANDARD] = {
+		{ PORT100_TG_PROT_END, 0 },
+	},
+	[NFC_DIGITAL_FRAMING_NFCA_STANDARD_WITH_CRC_A] = {
+		{ PORT100_TG_PROT_END, 0 },
+	},
+	[NFC_DIGITAL_FRAMING_NFCA_T1T] = {
+		{ PORT100_TG_PROT_END, 0 },
+	},
+	[NFC_DIGITAL_FRAMING_NFCA_T2T] = {
+		{ PORT100_TG_PROT_END, 0 },
+	},
+	[NFC_DIGITAL_FRAMING_NFCA_NFC_DEP] = {
+		{ PORT100_TG_PROT_TU,     1 },
+		{ PORT100_TG_PROT_RF_OFF, 0 },
+		{ PORT100_TG_PROT_CRM,    7 },
+		{ PORT100_TG_PROT_END,    0 },
+	},
+	[NFC_DIGITAL_FRAMING_NFCF] = {
+		{ PORT100_TG_PROT_END, 0 },
+	},
+	[NFC_DIGITAL_FRAMING_NFCF_T3T] = {
+		{ PORT100_TG_PROT_END, 0 },
+	},
+	[NFC_DIGITAL_FRAMING_NFCF_NFC_DEP] = {
+		{ PORT100_TG_PROT_TU,     1 },
+		{ PORT100_TG_PROT_RF_OFF, 0 },
+		{ PORT100_TG_PROT_CRM,    7 },
+		{ PORT100_TG_PROT_END,    0 },
+	},
+	[NFC_DIGITAL_FRAMING_NFC_DEP_ACTIVATED] = {
+		{ PORT100_TG_PROT_RF_OFF, 1 },
+		{ PORT100_TG_PROT_END,    0 },
+	},
+};
+
 struct port100 {
 	struct nfc_digital_dev *nfc_digital_dev;
 
@@ -348,6 +439,14 @@ struct port100_tg_comm_rf_cmd {
 	u8 data[];
 } __packed;
 
+struct port100_tg_comm_rf_res {
+	u8 comm_type;
+	u8 ar_status;
+	u8 target_activated;
+	__le32 status;
+	u8 data[];
+} __packed;
+
 /* The rule: value + checksum = 0 */
 static inline u8 port100_checksum(u16 value)
 {
@@ -1002,17 +1101,176 @@ static int port100_in_send_cmd(struct nfc_digital_dev *ddev,
 				      port100_in_comm_rf_complete, cb_arg);
 }
 
+static int port100_tg_set_rf(struct nfc_digital_dev *ddev, u8 rf)
+{
+	struct port100 *dev = nfc_digital_get_drvdata(ddev);
+	struct sk_buff *skb;
+	struct sk_buff *resp;
+	int rc;
+
+	if (rf >= NFC_DIGITAL_RF_TECH_LAST)
+		return -EINVAL;
+
+	skb = port100_alloc_skb(dev, sizeof(struct port100_tg_rf_setting));
+	if (!skb)
+		return -ENOMEM;
+
+	memcpy(skb_put(skb, sizeof(struct port100_tg_rf_setting)),
+	       &tg_rf_settings[rf],
+	       sizeof(struct port100_tg_rf_setting));
+
+	resp = port100_send_cmd_sync(dev, PORT100_CMD_TG_SET_RF, skb);
+
+	if (IS_ERR(resp))
+		return PTR_ERR(resp);
+
+	rc = resp->data[0];
+
+	dev_kfree_skb(resp);
+
+	return rc;
+}
+
+static int port100_tg_set_framing(struct nfc_digital_dev *ddev, int param)
+{
+	struct port100 *dev = nfc_digital_get_drvdata(ddev);
+	struct port100_protocol *protocols;
+	struct sk_buff *skb;
+	struct sk_buff *resp;
+	int rc;
+	int num_protocols;
+	size_t size;
+
+	if (param >= NFC_DIGITAL_FRAMING_LAST)
+		return -EINVAL;
+
+	protocols = tg_protocols[param];
+
+	num_protocols = 0;
+	while (protocols[num_protocols].number != PORT100_TG_PROT_END)
+		num_protocols++;
+
+	if (!num_protocols)
+		return 0;
+
+	size = sizeof(struct port100_protocol) * num_protocols;
+
+	skb = port100_alloc_skb(dev, size);
+	if (!skb)
+		return -ENOMEM;
+
+	memcpy(skb_put(skb, size), protocols, size);
+
+	resp = port100_send_cmd_sync(dev, PORT100_CMD_TG_SET_PROTOCOL, skb);
+
+	if (IS_ERR(resp))
+		return PTR_ERR(resp);
+
+	rc = resp->data[0];
+
+	dev_kfree_skb(resp);
+
+	return rc;
+}
+
 static int port100_tg_configure_hw(struct nfc_digital_dev *ddev, int type,
 				   int param)
 {
-	return -EOPNOTSUPP;
+	if (type == NFC_DIGITAL_CONFIG_RF_TECH)
+		return port100_tg_set_rf(ddev, param);
+
+	if (type == NFC_DIGITAL_CONFIG_FRAMING)
+		return port100_tg_set_framing(ddev, param);
+
+	return -EINVAL;
+}
+
+static bool port100_tg_target_activated(struct port100 *dev, u8 tgt_activated)
+{
+	u8 mask;
+
+	switch (dev->cmd_type) {
+	case PORT100_CMD_TYPE_0:
+		mask = PORT100_MDAA_TGT_HAS_BEEN_ACTIVATED_MASK;
+		break;
+	case PORT100_CMD_TYPE_1:
+		mask = PORT100_MDAA_TGT_HAS_BEEN_ACTIVATED_MASK |
+		       PORT100_MDAA_TGT_WAS_ACTIVATED_MASK;
+		break;
+	default:
+		nfc_err(&dev->interface->dev, "Unknonwn command type.\n");
+		return false;
+	}
+
+	return ((tgt_activated & mask) == mask);
+}
+
+static void port100_tg_comm_rf_complete(struct port100 *dev, void *arg,
+					struct sk_buff *resp)
+{
+	u32 status;
+	struct port100_cb_arg *cb_arg = arg;
+	nfc_digital_cmd_complete_t cb = cb_arg->complete_cb;
+	struct port100_tg_comm_rf_res *hdr;
+
+	if (IS_ERR(resp))
+		goto exit;
+
+	hdr = (struct port100_tg_comm_rf_res *)resp->data;
+
+	status = le32_to_cpu(hdr->status);
+
+	if (cb_arg->mdaa &&
+	    !port100_tg_target_activated(dev, hdr->target_activated)) {
+		kfree_skb(resp);
+		resp = ERR_PTR(-ETIMEDOUT);
+
+		goto exit;
+	}
+
+	skb_pull(resp, sizeof(struct port100_tg_comm_rf_res));
+
+	if (status != PORT100_CMD_STATUS_OK) {
+		kfree_skb(resp);
+
+		if (status == PORT100_CMD_STATUS_TIMEOUT)
+			resp = ERR_PTR(-ETIMEDOUT);
+		else
+			resp = ERR_PTR(-EIO);
+	}
+
+exit:
+	cb(dev->nfc_digital_dev, cb_arg->complete_arg, resp);
+
+	kfree(cb_arg);
 }
 
 static int port100_tg_send_cmd(struct nfc_digital_dev *ddev,
 			       struct sk_buff *skb, u16 timeout,
 			       nfc_digital_cmd_complete_t cb, void *arg)
 {
-	return -EOPNOTSUPP;
+	struct port100 *dev = nfc_digital_get_drvdata(ddev);
+	struct port100_tg_comm_rf_cmd *hdr;
+	struct port100_cb_arg *cb_arg;
+
+	cb_arg = kzalloc(sizeof(struct port100_cb_arg), GFP_KERNEL);
+	if (!cb_arg)
+		return -ENOMEM;
+
+	cb_arg->complete_cb = cb;
+	cb_arg->complete_arg = arg;
+
+	skb_push(skb, sizeof(struct port100_tg_comm_rf_cmd));
+
+	hdr = (struct port100_tg_comm_rf_cmd *)skb->data;
+
+	memset(hdr, 0, sizeof(struct port100_tg_comm_rf_cmd));
+	hdr->guard_time = cpu_to_le16(500);
+	hdr->send_timeout = cpu_to_le16(0xFFFF);
+	hdr->recv_timeout = cpu_to_le16(timeout);
+
+	return port100_send_cmd_async(dev, PORT100_CMD_TG_COMM_RF, skb,
+				      port100_tg_comm_rf_complete, cb_arg);
 }
 
 static int port100_listen_mdaa(struct nfc_digital_dev *ddev,
@@ -1020,13 +1278,68 @@ static int port100_listen_mdaa(struct nfc_digital_dev *ddev,
 			       u16 timeout,
 			       nfc_digital_cmd_complete_t cb, void *arg)
 {
-	return -EOPNOTSUPP;
+	struct port100 *dev = nfc_digital_get_drvdata(ddev);
+	struct port100_tg_comm_rf_cmd *hdr;
+	struct port100_cb_arg *cb_arg;
+	struct sk_buff *skb;
+	int rc;
+
+	rc = port100_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH,
+				     NFC_DIGITAL_RF_TECH_106A);
+	if (rc)
+		return rc;
+
+	rc = port100_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,
+				     NFC_DIGITAL_FRAMING_NFCA_NFC_DEP);
+	if (rc)
+		return rc;
+
+	cb_arg = kzalloc(sizeof(struct port100_cb_arg), GFP_KERNEL);
+	if (!cb_arg)
+		return -ENOMEM;
+
+	cb_arg->complete_cb = cb;
+	cb_arg->complete_arg = arg;
+	cb_arg->mdaa = 1;
+
+	skb = port100_alloc_skb(dev, 0);
+	if (!skb) {
+		kfree(cb_arg);
+		return -ENOMEM;
+	}
+
+	skb_push(skb, sizeof(struct port100_tg_comm_rf_cmd));
+	hdr = (struct port100_tg_comm_rf_cmd *)skb->data;
+
+	memset(hdr, 0, sizeof(struct port100_tg_comm_rf_cmd));
+
+	hdr->guard_time = 0;
+	hdr->send_timeout = cpu_to_le16(0xFFFF);
+	hdr->mdaa = 1;
+	hdr->nfca_param[0] = (params->sens_res >> 8) & 0xFF;
+	hdr->nfca_param[1] = params->sens_res & 0xFF;
+	memcpy(hdr->nfca_param + 2, params->nfcid1, 3);
+	hdr->nfca_param[5] = params->sel_res;
+	memcpy(hdr->nfcf_param, params->nfcid2, 8);
+	hdr->nfcf_param[16] = (params->sc >> 8) & 0xFF;
+	hdr->nfcf_param[17] = params->sc & 0xFF;
+	hdr->recv_timeout = cpu_to_le16(timeout);
+
+	return port100_send_cmd_async(dev, PORT100_CMD_TG_COMM_RF, skb,
+				      port100_tg_comm_rf_complete, cb_arg);
 }
 
 static int port100_listen(struct nfc_digital_dev *ddev, u16 timeout,
 			  nfc_digital_cmd_complete_t cb, void *arg)
 {
-	return -EOPNOTSUPP;
+	struct port100 *dev = nfc_digital_get_drvdata(ddev);
+	struct sk_buff *skb;
+
+	skb = port100_alloc_skb(dev, 0);
+	if (!skb)
+		return -ENOMEM;
+
+	return port100_tg_send_cmd(ddev, skb, timeout, cb, arg);
 }
 
 static struct nfc_digital_ops port100_digital_ops = {
-- 
cgit 


From ddc1a70b5f2a07a932ed31f989d63937bb813439 Mon Sep 17 00:00:00 2001
From: Samuel Ortiz <sameo@linux.intel.com>
Date: Mon, 7 Oct 2013 14:18:44 +0200
Subject: NFC: Fix SE API related sparse warning

se_io_cb can be declared static. This fixes the following sparse
warning:

net/nfc/netlink.c:1287:6: warning: symbol 'se_io_cb' was not declared.
Should it be static?

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 net/nfc/netlink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index a3dee05cb64b..84b7e3ea7b7a 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -1284,7 +1284,7 @@ struct se_io_ctx {
 	u32 se_idx;
 };
 
-void se_io_cb(void *context, u8 *apdu, size_t apdu_len, int err)
+static void se_io_cb(void *context, u8 *apdu, size_t apdu_len, int err)
 {
 	struct se_io_ctx *ctx = context;
 	struct sk_buff *msg;
-- 
cgit 


From 8acd3c97ff9ea803513c55f89d3f1832481b5b76 Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Wed, 2 Oct 2013 08:48:51 +0200
Subject: ath10k: enable 10.x firmware branch support

Since the WMI API has been added and we can detect from the
FW IEs what firmware variant we deal with, turn on support
for 10.x firmware branch in ath10k_wmi_attach().

kvalo: improve the commit log

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/wmi.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index be75571d21a0..416dabbc4993 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -1970,26 +1970,21 @@ static void ath10k_wmi_process_rx(struct ath10k *ar, struct sk_buff *skb)
 /* WMI Initialization functions */
 int ath10k_wmi_attach(struct ath10k *ar)
 {
-	int ret;
-
 	if (test_bit(ATH10K_FW_FEATURE_WMI_10X, ar->fw_features)) {
-		ath10k_warn("Firmware 10.X is not yet supported\n");
 		ar->wmi.cmd = &wmi_10x_cmd_map;
 		ar->wmi.vdev_param = &wmi_10x_vdev_param_map;
 		ar->wmi.pdev_param = &wmi_10x_pdev_param_map;
-		ret = -ENOTSUPP;
 	} else {
 		ar->wmi.cmd = &wmi_cmd_map;
 		ar->wmi.vdev_param = &wmi_vdev_param_map;
 		ar->wmi.pdev_param = &wmi_pdev_param_map;
-		ret = 0;
 	}
 
 	init_completion(&ar->wmi.service_ready);
 	init_completion(&ar->wmi.unified_ready);
 	init_waitqueue_head(&ar->wmi.tx_credits_wq);
 
-	return ret;
+	return 0;
 }
 
 void ath10k_wmi_detach(struct ath10k *ar)
-- 
cgit 


From c322892fa7084480efb0708d7d8d60d5c83de2eb Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Wed, 2 Oct 2013 08:48:52 +0200
Subject: ath10k: extend the max_scan time

It was observed few times, the artificial max_scan limit we
are using mainly to detect FW hangs, can be not enough for
instance while being associated and during heavy traffic.

What we do if the FW won't return with scan results within
the max_time time is a scan abort.

This is especially visible with 10.X fw which in combination
with dual band HW (scanning 32 channels) can end up with
hw_scan close to 10 seconds.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/wmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 416dabbc4993..f9766faf15cf 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -2522,7 +2522,7 @@ void ath10k_wmi_start_scan_init(struct ath10k *ar,
 	arg->repeat_probe_time = 0;
 	arg->probe_spacing_time = 0;
 	arg->idle_time = 0;
-	arg->max_scan_time = 5000;
+	arg->max_scan_time = 20000;
 	arg->probe_delay = 5;
 	arg->notify_scan_events = WMI_SCAN_EVENT_STARTED
 		| WMI_SCAN_EVENT_COMPLETED
-- 
cgit 


From 42c3aa6f6ae7de082b7413321e67e3424cc0c002 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Wed, 2 Oct 2013 11:03:38 +0200
Subject: ath10k: split tid calculation from tx function

Tidy up ath10k_tx().

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c | 23 +++++++++++++++--------
 1 file changed, 15 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 8684e03b393e..7415a6045d30 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1407,6 +1407,20 @@ static void ath10k_reg_notifier(struct wiphy *wiphy,
 /* TX handlers */
 /***************/
 
+static u8 ath10k_tx_h_get_tid(struct ieee80211_hdr *hdr)
+{
+	if (ieee80211_is_mgmt(hdr->frame_control))
+		return HTT_DATA_TX_EXT_TID_MGMT;
+
+	if (!ieee80211_is_data_qos(hdr->frame_control))
+		return HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;
+
+	if (!is_unicast_ether_addr(ieee80211_get_DA(hdr)))
+		return HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;
+
+	return ieee80211_get_qos_ctl(hdr)[0] & IEEE80211_QOS_CTL_TID_MASK;
+}
+
 /*
  * Frames sent to the FW have to be in "Native Wifi" format.
  * Strip the QoS field from the 802.11 header.
@@ -1788,14 +1802,7 @@ static void ath10k_tx(struct ieee80211_hw *hw,
 
 	/* we must calculate tid before we apply qos workaround
 	 * as we'd lose the qos control field */
-	tid = HTT_DATA_TX_EXT_TID_NON_QOS_MCAST_BCAST;
-	if (ieee80211_is_mgmt(hdr->frame_control)) {
-		tid = HTT_DATA_TX_EXT_TID_MGMT;
-	} else if (ieee80211_is_data_qos(hdr->frame_control) &&
-		   is_unicast_ether_addr(ieee80211_get_DA(hdr))) {
-		u8 *qc = ieee80211_get_qos_ctl(hdr);
-		tid = qc[0] & IEEE80211_QOS_CTL_TID_MASK;
-	}
+	tid = ath10k_tx_h_get_tid(hdr);
 
 	/* it makes no sense to process injected frames like that */
 	if (info->control.vif &&
-- 
cgit 


From ddb6ad77b4ecfb832982be69f2169165e6a43f0b Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Wed, 2 Oct 2013 11:03:39 +0200
Subject: ath10k: split vdev_id calculation from tx function

Tidy up ath10k_tx().

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c | 25 +++++++++++++++----------
 1 file changed, 15 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 7415a6045d30..4b7c9494890c 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1421,6 +1421,19 @@ static u8 ath10k_tx_h_get_tid(struct ieee80211_hdr *hdr)
 	return ieee80211_get_qos_ctl(hdr)[0] & IEEE80211_QOS_CTL_TID_MASK;
 }
 
+static u8 ath10k_tx_h_get_vdev_id(struct ath10k *ar,
+				  struct ieee80211_tx_info *info)
+{
+	if (info->control.vif)
+		return ath10k_vif_to_arvif(info->control.vif)->vdev_id;
+
+	if (ar->monitor_enabled)
+		return ar->monitor_vdev_id;
+
+	ath10k_warn("could not resolve vdev id\n");
+	return 0;
+}
+
 /*
  * Frames sent to the FW have to be in "Native Wifi" format.
  * Strip the QoS field from the 802.11 header.
@@ -1785,16 +1798,7 @@ static void ath10k_tx(struct ieee80211_hw *hw,
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 	struct ath10k *ar = hw->priv;
-	struct ath10k_vif *arvif = NULL;
-	u32 vdev_id = 0;
-	u8 tid;
-
-	if (info->control.vif) {
-		arvif = ath10k_vif_to_arvif(info->control.vif);
-		vdev_id = arvif->vdev_id;
-	} else if (ar->monitor_enabled) {
-		vdev_id = ar->monitor_vdev_id;
-	}
+	u8 tid, vdev_id;
 
 	/* We should disable CCK RATE due to P2P */
 	if (info->flags & IEEE80211_TX_CTL_NO_CCK_RATE)
@@ -1803,6 +1807,7 @@ static void ath10k_tx(struct ieee80211_hw *hw,
 	/* we must calculate tid before we apply qos workaround
 	 * as we'd lose the qos control field */
 	tid = ath10k_tx_h_get_tid(hdr);
+	vdev_id = ath10k_tx_h_get_vdev_id(ar, info);
 
 	/* it makes no sense to process injected frames like that */
 	if (info->control.vif &&
-- 
cgit 


From 2e761b5a5222071d55ebccf65f93d281e4c11958 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Wed, 2 Oct 2013 11:03:40 +0200
Subject: ath10k: remove ce_sendlist_send

It is completely pointless to keep this function
around. It doesn't do anything different than
ce_send except it introduces more overhead.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/ce.c  | 34 ----------------------------------
 drivers/net/wireless/ath/ath10k/ce.h  | 15 ---------------
 drivers/net/wireless/ath/ath10k/pci.c |  4 ++--
 3 files changed, 2 insertions(+), 51 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index 834e29ea236c..9e6daa9c28b8 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -338,40 +338,6 @@ int ath10k_ce_send(struct ath10k_ce_pipe *ce_state,
 	return ret;
 }
 
-int ath10k_ce_sendlist_send(struct ath10k_ce_pipe *ce_state,
-			    void *per_transfer_context,
-			    unsigned int transfer_id,
-			    u32 paddr, unsigned int nbytes,
-			    u32 flags)
-{
-	struct ath10k_ce_ring *src_ring = ce_state->src_ring;
-	struct ath10k *ar = ce_state->ar;
-	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	unsigned int nentries_mask = src_ring->nentries_mask;
-	unsigned int sw_index;
-	unsigned int write_index;
-	int delta, ret = -ENOMEM;
-
-	spin_lock_bh(&ar_pci->ce_lock);
-
-	sw_index = src_ring->sw_index;
-	write_index = src_ring->write_index;
-
-	delta = CE_RING_DELTA(nentries_mask, write_index, sw_index - 1);
-
-	if (delta >= 1) {
-		ret = ath10k_ce_send_nolock(ce_state, per_transfer_context,
-					    paddr, nbytes,
-					    transfer_id, flags);
-		if (ret)
-			ath10k_warn("CE send failed: %d\n", ret);
-	}
-
-	spin_unlock_bh(&ar_pci->ce_lock);
-
-	return ret;
-}
-
 int ath10k_ce_recv_buf_enqueue(struct ath10k_ce_pipe *ce_state,
 			       void *per_recv_context,
 			       u32 buffer)
diff --git a/drivers/net/wireless/ath/ath10k/ce.h b/drivers/net/wireless/ath/ath10k/ce.h
index aec802868341..949b1744870b 100644
--- a/drivers/net/wireless/ath/ath10k/ce.h
+++ b/drivers/net/wireless/ath/ath10k/ce.h
@@ -156,21 +156,6 @@ void ath10k_ce_send_cb_register(struct ath10k_ce_pipe *ce_state,
 				void (*send_cb)(struct ath10k_ce_pipe *),
 				int disable_interrupts);
 
-/*
- * Queue a "sendlist" of buffers to be sent using gather to a single
- * anonymous destination buffer
- *   ce         - which copy engine to use
- *   sendlist        - list of simple buffers to send using gather
- *   transfer_id     - arbitrary ID; reflected to destination
- * Returns 0 on success; otherwise an error status.
- *
- * Implemenation note: Pushes multiple buffers with Gather to Source ring.
- */
-int ath10k_ce_sendlist_send(struct ath10k_ce_pipe *ce_state,
-			    void *per_transfer_context,
-			    unsigned int transfer_id,
-			    u32 paddr, unsigned int nbytes,
-			    u32 flags);
 
 /*==================Recv=======================*/
 
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index dff23d97bed0..4f6a9787e2d3 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -730,8 +730,8 @@ static int ath10k_pci_hif_send_head(struct ath10k *ar, u8 pipe_id,
 	pipe_info->num_sends_allowed--;
 	spin_unlock_bh(&pipe_info->pipe_lock);
 
-	ret = ath10k_ce_sendlist_send(ce_hdl, nbuf, transfer_id,
-				      skb_cb->paddr, len, flags);
+	ret = ath10k_ce_send(ce_hdl, nbuf, skb_cb->paddr, len, transfer_id,
+			     flags);
 	if (ret)
 		ath10k_warn("CE send failed: %p\n", nbuf);
 
-- 
cgit 


From 3efcb3b40cc40091661eb376be175a6971616f6b Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Wed, 2 Oct 2013 11:03:41 +0200
Subject: ath10k: remove num_sends_allowed

The value provided by num_sends_allowed is now
derived from CE source ringbuffer state.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/ce.c  | 17 ++++++++++++++++-
 drivers/net/wireless/ath/ath10k/ce.h  |  1 +
 drivers/net/wireless/ath/ath10k/pci.c | 21 +--------------------
 drivers/net/wireless/ath/ath10k/pci.h |  3 ---
 4 files changed, 18 insertions(+), 24 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index 9e6daa9c28b8..e46951b8fb92 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -283,7 +283,7 @@ static int ath10k_ce_send_nolock(struct ath10k_ce_pipe *ce_state,
 
 	if (unlikely(CE_RING_DELTA(nentries_mask,
 				   write_index, sw_index - 1) <= 0)) {
-		ret = -EIO;
+		ret = -ENOSR;
 		goto exit;
 	}
 
@@ -338,6 +338,21 @@ int ath10k_ce_send(struct ath10k_ce_pipe *ce_state,
 	return ret;
 }
 
+int ath10k_ce_num_free_src_entries(struct ath10k_ce_pipe *pipe)
+{
+	struct ath10k *ar = pipe->ar;
+	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+	int delta;
+
+	spin_lock_bh(&ar_pci->ce_lock);
+	delta = CE_RING_DELTA(pipe->src_ring->nentries_mask,
+			      pipe->src_ring->write_index,
+			      pipe->src_ring->sw_index - 1);
+	spin_unlock_bh(&ar_pci->ce_lock);
+
+	return delta;
+}
+
 int ath10k_ce_recv_buf_enqueue(struct ath10k_ce_pipe *ce_state,
 			       void *per_recv_context,
 			       u32 buffer)
diff --git a/drivers/net/wireless/ath/ath10k/ce.h b/drivers/net/wireless/ath/ath10k/ce.h
index 949b1744870b..15d45b5b7615 100644
--- a/drivers/net/wireless/ath/ath10k/ce.h
+++ b/drivers/net/wireless/ath/ath10k/ce.h
@@ -156,6 +156,7 @@ void ath10k_ce_send_cb_register(struct ath10k_ce_pipe *ce_state,
 				void (*send_cb)(struct ath10k_ce_pipe *),
 				int disable_interrupts);
 
+int ath10k_ce_num_free_src_entries(struct ath10k_ce_pipe *pipe);
 
 /*==================Recv=======================*/
 
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index 4f6a9787e2d3..f8d59c7b9082 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -720,16 +720,6 @@ static int ath10k_pci_hif_send_head(struct ath10k *ar, u8 pipe_id,
 			"ath10k tx: data: ",
 			nbuf->data, nbuf->len);
 
-	/* Make sure we have resources to handle this request */
-	spin_lock_bh(&pipe_info->pipe_lock);
-	if (!pipe_info->num_sends_allowed) {
-		ath10k_warn("Pipe: %d is full\n", pipe_id);
-		spin_unlock_bh(&pipe_info->pipe_lock);
-		return -ENOSR;
-	}
-	pipe_info->num_sends_allowed--;
-	spin_unlock_bh(&pipe_info->pipe_lock);
-
 	ret = ath10k_ce_send(ce_hdl, nbuf, skb_cb->paddr, len, transfer_id,
 			     flags);
 	if (ret)
@@ -741,14 +731,7 @@ static int ath10k_pci_hif_send_head(struct ath10k *ar, u8 pipe_id,
 static u16 ath10k_pci_hif_get_free_queue_number(struct ath10k *ar, u8 pipe)
 {
 	struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-	struct ath10k_pci_pipe *pipe_info = &(ar_pci->pipe_info[pipe]);
-	int ret;
-
-	spin_lock_bh(&pipe_info->pipe_lock);
-	ret = pipe_info->num_sends_allowed;
-	spin_unlock_bh(&pipe_info->pipe_lock);
-
-	return ret;
+	return ath10k_ce_num_free_src_entries(ar_pci->pipe_info[pipe].ce_hdl);
 }
 
 static void ath10k_pci_hif_dump_area(struct ath10k *ar)
@@ -863,7 +846,6 @@ static int ath10k_pci_start_ce(struct ath10k *ar)
 						   ath10k_pci_ce_send_done,
 						   disable_interrupts);
 			completions += attr->src_nentries;
-			pipe_info->num_sends_allowed = attr->src_nentries - 1;
 		}
 
 		if (attr->dest_nentries) {
@@ -1033,7 +1015,6 @@ static void ath10k_pci_process_ce(struct ath10k *ar)
 		 */
 		spin_lock_bh(&compl->pipe_info->pipe_lock);
 		list_add_tail(&compl->list, &compl->pipe_info->compl_free);
-		compl->pipe_info->num_sends_allowed += send_done;
 		spin_unlock_bh(&compl->pipe_info->pipe_lock);
 	}
 
diff --git a/drivers/net/wireless/ath/ath10k/pci.h b/drivers/net/wireless/ath/ath10k/pci.h
index 7c49f6f96f70..52fb7b973571 100644
--- a/drivers/net/wireless/ath/ath10k/pci.h
+++ b/drivers/net/wireless/ath/ath10k/pci.h
@@ -178,9 +178,6 @@ struct ath10k_pci_pipe {
 	/* List of free CE completion slots */
 	struct list_head compl_free;
 
-	/* Limit the number of outstanding send requests. */
-	int num_sends_allowed;
-
 	struct ath10k_pci *ar_pci;
 	struct tasklet_struct intr;
 };
-- 
cgit 


From f6996cfe2f1db60a74765449f9b53c7591bcdc87 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 7 Oct 2013 02:31:39 -0700
Subject: Bluetooth: Read supported features and commands on AMP controllers

The commands for reading supported features and commands are both
supported by AMP controllers. Issue them during controller init
phase so their values are known.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 3572611c0297..99f83abbcaa6 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -307,6 +307,12 @@ static void amp_init(struct hci_request *req)
 	/* Read Local Version */
 	hci_req_add(req, HCI_OP_READ_LOCAL_VERSION, 0, NULL);
 
+	/* Read Local Supported Commands */
+	hci_req_add(req, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL);
+
+	/* Read Local Supported Features */
+	hci_req_add(req, HCI_OP_READ_LOCAL_FEATURES, 0, NULL);
+
 	/* Read Local AMP Info */
 	hci_req_add(req, HCI_OP_READ_LOCAL_AMP_INFO, 0, NULL);
 
-- 
cgit 


From 702a4879ec337463f858c8ab467482cce260bf18 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Tue, 10 Sep 2013 15:43:41 +0800
Subject: spi: bitbang: Let spi_bitbang_start() take a reference to master

Many drivers that use bitbang library have a leak on probe error paths.
This is because once a spi_master_get() call succeeds, we need an additional
spi_master_put() call to free the memory.

Fix this issue by moving the code taking a reference to master to
spi_bitbang_start(), so spi_bitbang_start() will take a reference to master on
success. With this change, the caller is responsible for calling
spi_bitbang_stop() to decrement the reference and spi_master_put() as
counterpart of spi_alloc_master() to prevent a memory leak.

So now we have below patten for drivers using bitbang library:

probe:
spi_alloc_master        -> Init reference count to 1
spi_bitbang_start       -> Increment reference count
remove:
spi_bitbang_stop        -> Decrement reference count
spi_master_put          -> Decrement reference count (reference count reaches 0)

Fixup all users accordingly.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Suggested-by: Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
Acked-by: Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-altera.c    |  2 +-
 drivers/spi/spi-ath79.c     |  2 +-
 drivers/spi/spi-au1550.c    |  2 +-
 drivers/spi/spi-bitbang.c   | 12 +++++++++++-
 drivers/spi/spi-butterfly.c |  2 +-
 drivers/spi/spi-davinci.c   | 10 ++++------
 drivers/spi/spi-efm32.c     |  2 +-
 drivers/spi/spi-fsl-dspi.c  |  2 +-
 drivers/spi/spi-gpio.c      |  5 ++---
 drivers/spi/spi-imx.c       |  2 +-
 drivers/spi/spi-lm70llp.c   |  2 +-
 drivers/spi/spi-nuc900.c    |  3 +--
 drivers/spi/spi-oc-tiny.c   |  2 +-
 drivers/spi/spi-ppc4xx.c    |  3 ++-
 drivers/spi/spi-s3c24xx.c   |  2 +-
 drivers/spi/spi-sh-sci.c    |  2 +-
 drivers/spi/spi-sirf.c      |  2 +-
 drivers/spi/spi-xilinx.c    |  2 +-
 18 files changed, 33 insertions(+), 26 deletions(-)

diff --git a/drivers/spi/spi-altera.c b/drivers/spi/spi-altera.c
index 9a64c3fee218..595b62cb545d 100644
--- a/drivers/spi/spi-altera.c
+++ b/drivers/spi/spi-altera.c
@@ -219,7 +219,7 @@ static int altera_spi_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, hw);
 
 	/* setup the state for the bitbang driver */
-	hw->bitbang.master = spi_master_get(master);
+	hw->bitbang.master = master;
 	if (!hw->bitbang.master)
 		return err;
 	hw->bitbang.chipselect = altera_spi_chipsel;
diff --git a/drivers/spi/spi-ath79.c b/drivers/spi/spi-ath79.c
index 37bad952ab38..821bf7ac218d 100644
--- a/drivers/spi/spi-ath79.c
+++ b/drivers/spi/spi-ath79.c
@@ -231,7 +231,7 @@ static int ath79_spi_probe(struct platform_device *pdev)
 		master->num_chipselect = pdata->num_chipselect;
 	}
 
-	sp->bitbang.master = spi_master_get(master);
+	sp->bitbang.master = master;
 	sp->bitbang.chipselect = ath79_spi_chipselect;
 	sp->bitbang.txrx_word[SPI_MODE_0] = ath79_spi_txrx_mode0;
 	sp->bitbang.setup_transfer = spi_bitbang_setup_transfer;
diff --git a/drivers/spi/spi-au1550.c b/drivers/spi/spi-au1550.c
index 1d00d9b397dd..e06400a3a719 100644
--- a/drivers/spi/spi-au1550.c
+++ b/drivers/spi/spi-au1550.c
@@ -775,7 +775,7 @@ static int au1550_spi_probe(struct platform_device *pdev)
 
 	hw = spi_master_get_devdata(master);
 
-	hw->master = spi_master_get(master);
+	hw->master = master;
 	hw->pdata = dev_get_platdata(&pdev->dev);
 	hw->dev = &pdev->dev;
 
diff --git a/drivers/spi/spi-bitbang.c b/drivers/spi/spi-bitbang.c
index 8c11355dec23..0056623dfc6b 100644
--- a/drivers/spi/spi-bitbang.c
+++ b/drivers/spi/spi-bitbang.c
@@ -414,10 +414,16 @@ static int spi_bitbang_unprepare_hardware(struct spi_master *spi)
  * This routine registers the spi_master, which will process requests in a
  * dedicated task, keeping IRQs unblocked most of the time.  To stop
  * processing those requests, call spi_bitbang_stop().
+ *
+ * On success, this routine will take a reference to master. The caller is
+ * responsible for calling spi_bitbang_stop() to decrement the reference and
+ * spi_master_put() as counterpart of spi_alloc_master() to prevent a memory
+ * leak.
  */
 int spi_bitbang_start(struct spi_bitbang *bitbang)
 {
 	struct spi_master *master = bitbang->master;
+	int ret;
 
 	if (!master || !bitbang->chipselect)
 		return -EINVAL;
@@ -449,7 +455,11 @@ int spi_bitbang_start(struct spi_bitbang *bitbang)
 	/* driver may get busy before register() returns, especially
 	 * if someone registered boardinfo for devices
 	 */
-	return spi_register_master(master);
+	ret = spi_register_master(spi_master_get(master));
+	if (ret)
+		spi_master_put(master);
+
+	return 0;
 }
 EXPORT_SYMBOL_GPL(spi_bitbang_start);
 
diff --git a/drivers/spi/spi-butterfly.c b/drivers/spi/spi-butterfly.c
index 5ed08e537433..b1ecea2d76b3 100644
--- a/drivers/spi/spi-butterfly.c
+++ b/drivers/spi/spi-butterfly.c
@@ -225,7 +225,7 @@ static void butterfly_attach(struct parport *p)
 	master->bus_num = 42;
 	master->num_chipselect = 2;
 
-	pp->bitbang.master = spi_master_get(master);
+	pp->bitbang.master = master;
 	pp->bitbang.chipselect = butterfly_chipselect;
 	pp->bitbang.txrx_word[SPI_MODE_0] = butterfly_txrx_word_mode0;
 
diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
index 8fbfe2483ffd..af2bb73d0168 100644
--- a/drivers/spi/spi-davinci.c
+++ b/drivers/spi/spi-davinci.c
@@ -916,7 +916,7 @@ static int davinci_spi_probe(struct platform_device *pdev)
 	if (ret)
 		goto unmap_io;
 
-	dspi->bitbang.master = spi_master_get(master);
+	dspi->bitbang.master = master;
 	if (dspi->bitbang.master == NULL) {
 		ret = -ENODEV;
 		goto irq_free;
@@ -925,7 +925,7 @@ static int davinci_spi_probe(struct platform_device *pdev)
 	dspi->clk = clk_get(&pdev->dev, NULL);
 	if (IS_ERR(dspi->clk)) {
 		ret = -ENODEV;
-		goto put_master;
+		goto irq_free;
 	}
 	clk_prepare_enable(dspi->clk);
 
@@ -1015,8 +1015,6 @@ free_dma:
 free_clk:
 	clk_disable_unprepare(dspi->clk);
 	clk_put(dspi->clk);
-put_master:
-	spi_master_put(master);
 irq_free:
 	free_irq(dspi->irq, dspi);
 unmap_io:
@@ -1024,7 +1022,7 @@ unmap_io:
 release_region:
 	release_mem_region(dspi->pbase, resource_size(r));
 free_master:
-	kfree(master);
+	spi_master_put(master);
 err:
 	return ret;
 }
@@ -1051,11 +1049,11 @@ static int davinci_spi_remove(struct platform_device *pdev)
 
 	clk_disable_unprepare(dspi->clk);
 	clk_put(dspi->clk);
-	spi_master_put(master);
 	free_irq(dspi->irq, dspi);
 	iounmap(dspi->base);
 	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	release_mem_region(dspi->pbase, resource_size(r));
+	spi_master_put(master);
 
 	return 0;
 }
diff --git a/drivers/spi/spi-efm32.c b/drivers/spi/spi-efm32.c
index 7d84418a01d8..d428a40778c1 100644
--- a/drivers/spi/spi-efm32.c
+++ b/drivers/spi/spi-efm32.c
@@ -347,7 +347,7 @@ static int efm32_spi_probe(struct platform_device *pdev)
 
 	ddata = spi_master_get_devdata(master);
 
-	ddata->bitbang.master = spi_master_get(master);
+	ddata->bitbang.master = master;
 	ddata->bitbang.chipselect = efm32_spi_chipselect;
 	ddata->bitbang.setup_transfer = efm32_spi_setup_transfer;
 	ddata->bitbang.txrx_bufs = efm32_spi_txrx_bufs;
diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index 6cd07d13ecab..d338b6722255 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -450,7 +450,7 @@ static int dspi_probe(struct platform_device *pdev)
 
 	dspi = spi_master_get_devdata(master);
 	dspi->pdev = pdev;
-	dspi->bitbang.master = spi_master_get(master);
+	dspi->bitbang.master = master;
 	dspi->bitbang.chipselect = dspi_chipselect;
 	dspi->bitbang.setup_transfer = dspi_setup_transfer;
 	dspi->bitbang.txrx_bufs = dspi_txrx_transfer;
diff --git a/drivers/spi/spi-gpio.c b/drivers/spi/spi-gpio.c
index 68b69fec13a9..14c01b44ca7a 100644
--- a/drivers/spi/spi-gpio.c
+++ b/drivers/spi/spi-gpio.c
@@ -467,7 +467,7 @@ static int spi_gpio_probe(struct platform_device *pdev)
 	}
 #endif
 
-	spi_gpio->bitbang.master = spi_master_get(master);
+	spi_gpio->bitbang.master = master;
 	spi_gpio->bitbang.chipselect = spi_gpio_chipselect;
 
 	if ((master_flags & (SPI_MASTER_NO_TX | SPI_MASTER_NO_RX)) == 0) {
@@ -486,7 +486,6 @@ static int spi_gpio_probe(struct platform_device *pdev)
 
 	status = spi_bitbang_start(&spi_gpio->bitbang);
 	if (status < 0) {
-		spi_master_put(spi_gpio->bitbang.master);
 gpio_free:
 		if (SPI_MISO_GPIO != SPI_GPIO_NO_MISO)
 			gpio_free(SPI_MISO_GPIO);
@@ -510,13 +509,13 @@ static int spi_gpio_remove(struct platform_device *pdev)
 
 	/* stop() unregisters child devices too */
 	status = spi_bitbang_stop(&spi_gpio->bitbang);
-	spi_master_put(spi_gpio->bitbang.master);
 
 	if (SPI_MISO_GPIO != SPI_GPIO_NO_MISO)
 		gpio_free(SPI_MISO_GPIO);
 	if (SPI_MOSI_GPIO != SPI_GPIO_NO_MOSI)
 		gpio_free(SPI_MOSI_GPIO);
 	gpio_free(SPI_SCK_GPIO);
+	spi_master_put(spi_gpio->bitbang.master);
 
 	return status;
 }
diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index 15323d8bd9cf..02d9f468b2b6 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -786,7 +786,7 @@ static int spi_imx_probe(struct platform_device *pdev)
 	master->num_chipselect = num_cs;
 
 	spi_imx = spi_master_get_devdata(master);
-	spi_imx->bitbang.master = spi_master_get(master);
+	spi_imx->bitbang.master = master;
 
 	for (i = 0; i < master->num_chipselect; i++) {
 		int cs_gpio = of_get_named_gpio(np, "cs-gpios", i);
diff --git a/drivers/spi/spi-lm70llp.c b/drivers/spi/spi-lm70llp.c
index 0759b5db9883..41c5765be746 100644
--- a/drivers/spi/spi-lm70llp.c
+++ b/drivers/spi/spi-lm70llp.c
@@ -222,7 +222,7 @@ static void spi_lm70llp_attach(struct parport *p)
 	/*
 	 * SPI and bitbang hookup.
 	 */
-	pp->bitbang.master = spi_master_get(master);
+	pp->bitbang.master = master;
 	pp->bitbang.chipselect = lm70_chipselect;
 	pp->bitbang.txrx_word[SPI_MODE_0] = lm70_txrx;
 	pp->bitbang.flags = SPI_3WIRE;
diff --git a/drivers/spi/spi-nuc900.c b/drivers/spi/spi-nuc900.c
index 47a68b43bcd5..e0c32bc69ee2 100644
--- a/drivers/spi/spi-nuc900.c
+++ b/drivers/spi/spi-nuc900.c
@@ -349,7 +349,7 @@ static int nuc900_spi_probe(struct platform_device *pdev)
 	}
 
 	hw = spi_master_get_devdata(master);
-	hw->master = spi_master_get(master);
+	hw->master = master;
 	hw->pdata  = dev_get_platdata(&pdev->dev);
 	hw->dev = &pdev->dev;
 
@@ -435,7 +435,6 @@ err_iomap:
 	kfree(hw->ioarea);
 err_pdata:
 	spi_master_put(hw->master);
-
 err_nomem:
 	return err;
 }
diff --git a/drivers/spi/spi-oc-tiny.c b/drivers/spi/spi-oc-tiny.c
index 333cb1badcd7..91c668596202 100644
--- a/drivers/spi/spi-oc-tiny.c
+++ b/drivers/spi/spi-oc-tiny.c
@@ -306,7 +306,7 @@ static int tiny_spi_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, hw);
 
 	/* setup the state for the bitbang driver */
-	hw->bitbang.master = spi_master_get(master);
+	hw->bitbang.master = master;
 	if (!hw->bitbang.master)
 		return err;
 	hw->bitbang.setup_transfer = tiny_spi_setup_transfer;
diff --git a/drivers/spi/spi-ppc4xx.c b/drivers/spi/spi-ppc4xx.c
index 0ee53c25ba58..c57740bb70d3 100644
--- a/drivers/spi/spi-ppc4xx.c
+++ b/drivers/spi/spi-ppc4xx.c
@@ -396,7 +396,7 @@ static int spi_ppc4xx_of_probe(struct platform_device *op)
 	master->dev.of_node = np;
 	platform_set_drvdata(op, master);
 	hw = spi_master_get_devdata(master);
-	hw->master = spi_master_get(master);
+	hw->master = master;
 	hw->dev = dev;
 
 	init_completion(&hw->done);
@@ -558,6 +558,7 @@ static int spi_ppc4xx_of_remove(struct platform_device *op)
 	free_irq(hw->irqnum, hw);
 	iounmap(hw->regs);
 	free_gpios(hw);
+	spi_master_put(master);
 	return 0;
 }
 
diff --git a/drivers/spi/spi-s3c24xx.c b/drivers/spi/spi-s3c24xx.c
index ce318d95a6ee..c9cfdfaf7523 100644
--- a/drivers/spi/spi-s3c24xx.c
+++ b/drivers/spi/spi-s3c24xx.c
@@ -524,7 +524,7 @@ static int s3c24xx_spi_probe(struct platform_device *pdev)
 	hw = spi_master_get_devdata(master);
 	memset(hw, 0, sizeof(struct s3c24xx_spi));
 
-	hw->master = spi_master_get(master);
+	hw->master = master;
 	hw->pdata = pdata = dev_get_platdata(&pdev->dev);
 	hw->dev = &pdev->dev;
 
diff --git a/drivers/spi/spi-sh-sci.c b/drivers/spi/spi-sh-sci.c
index 8eefeb6007df..38eb24df796c 100644
--- a/drivers/spi/spi-sh-sci.c
+++ b/drivers/spi/spi-sh-sci.c
@@ -133,7 +133,7 @@ static int sh_sci_spi_probe(struct platform_device *dev)
 	sp->info = dev_get_platdata(&dev->dev);
 
 	/* setup spi bitbang adaptor */
-	sp->bitbang.master = spi_master_get(master);
+	sp->bitbang.master = master;
 	sp->bitbang.master->bus_num = sp->info->bus_num;
 	sp->bitbang.master->num_chipselect = sp->info->num_chipselect;
 	sp->bitbang.chipselect = sh_sci_spi_chipselect;
diff --git a/drivers/spi/spi-sirf.c b/drivers/spi/spi-sirf.c
index a1f21b747733..592b4aff651f 100644
--- a/drivers/spi/spi-sirf.c
+++ b/drivers/spi/spi-sirf.c
@@ -632,7 +632,7 @@ static int spi_sirfsoc_probe(struct platform_device *pdev)
 	if (ret)
 		goto free_master;
 
-	sspi->bitbang.master = spi_master_get(master);
+	sspi->bitbang.master = master;
 	sspi->bitbang.chipselect = spi_sirfsoc_chipselect;
 	sspi->bitbang.setup_transfer = spi_sirfsoc_setup_transfer;
 	sspi->bitbang.txrx_bufs = spi_sirfsoc_transfer;
diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c
index 0bf1b2c457a1..ec3a83f52ea2 100644
--- a/drivers/spi/spi-xilinx.c
+++ b/drivers/spi/spi-xilinx.c
@@ -372,7 +372,7 @@ static int xilinx_spi_probe(struct platform_device *pdev)
 	master->mode_bits = SPI_CPOL | SPI_CPHA;
 
 	xspi = spi_master_get_devdata(master);
-	xspi->bitbang.master = spi_master_get(master);
+	xspi->bitbang.master = master;
 	xspi->bitbang.chipselect = xilinx_spi_chipselect;
 	xspi->bitbang.setup_transfer = xilinx_spi_setup_transfer;
 	xspi->bitbang.txrx_bufs = xilinx_spi_txrx_bufs;
-- 
cgit 


From e6f7563b7354c2eb26d89b8622b3582a4c6510d8 Mon Sep 17 00:00:00 2001
From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Tue, 10 Sep 2013 09:51:30 +0200
Subject: spi: efm32: add spi_bitbang_stop to device remove callback
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This call is needed to cleanup the resources requested by
spi_bitbang_start in the probe callback.

Noticed-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-efm32.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/spi/spi-efm32.c b/drivers/spi/spi-efm32.c
index 34ef44c77e8e..5ce61e5f9770 100644
--- a/drivers/spi/spi-efm32.c
+++ b/drivers/spi/spi-efm32.c
@@ -477,6 +477,8 @@ static int efm32_spi_remove(struct platform_device *pdev)
 	struct spi_master *master = platform_get_drvdata(pdev);
 	struct efm32_spi_ddata *ddata = spi_master_get_devdata(master);
 
+	spi_bitbang_stop(&ddata->bitbang);
+
 	efm32_spi_write32(ddata, 0, REG_IEN);
 
 	free_irq(ddata->txirq, ddata);
-- 
cgit 


From 328aee4b5103fe071ace03cd2ab425fc2186d28b Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 7 Oct 2013 23:13:47 +0900
Subject: ARM: dts: Disable Exynos5250 I2S controllers by default

Rather than requiring each board to explicitly disable the I2S controllers
it is not using instead require boards to enable those that they are using.

This is required for audio operation on Arndale, one of the unused I2S
controllers is pinmuxed with the LDO enable GPIOs for the WM1811A.

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/boot/dts/exynos5250-arndale.dts  | 4 ++++
 arch/arm/boot/dts/exynos5250-smdk5250.dts | 8 --------
 arch/arm/boot/dts/exynos5250.dtsi         | 3 +++
 3 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts
index 0c425476d4db..b0dbea8f0286 100644
--- a/arch/arm/boot/dts/exynos5250-arndale.dts
+++ b/arch/arm/boot/dts/exynos5250-arndale.dts
@@ -412,6 +412,10 @@
 		status = "disabled";
 	};
 
+	i2s0: i2s@03830000 {
+		status = "okay";
+	};
+
 	spi_0: spi@12d20000 {
 		status = "disabled";
 	};
diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
index 2538b329f2ce..f86d56760a45 100644
--- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
@@ -231,14 +231,6 @@
 		status = "okay";
 	};
 
-	i2s1: i2s@12D60000 {
-		status = "disabled";
-	};
-
-	i2s2: i2s@12D70000 {
-		status = "disabled";
-	};
-
 	sound {
 		compatible = "samsung,smdk-wm8994";
 
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 7d7cc777ff7b..c863113eed3f 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -417,6 +417,7 @@
 
 	i2s0: i2s@03830000 {
 		compatible = "samsung,s5pv210-i2s";
+		status = "disabled";
 		reg = <0x03830000 0x100>;
 		dmas = <&pdma0 10
 			&pdma0 9
@@ -433,6 +434,7 @@
 
 	i2s1: i2s@12D60000 {
 		compatible = "samsung,s3c6410-i2s";
+		status = "disabled";
 		reg = <0x12D60000 0x100>;
 		dmas = <&pdma1 12
 			&pdma1 11>;
@@ -445,6 +447,7 @@
 
 	i2s2: i2s@12D70000 {
 		compatible = "samsung,s3c6410-i2s";
+		status = "disabled";
 		reg = <0x12D70000 0x100>;
 		dmas = <&pdma0 12
 			&pdma0 11>;
-- 
cgit 


From 75c912a367fbdc07f0ef6f5384acd5028beb225e Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Mon, 7 Oct 2013 15:43:53 +0100
Subject: ARM: add .gitignore entry for aesbs-core.S

This avoids this file being incorrectly added to git.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/crypto/.gitignore | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 arch/arm/crypto/.gitignore

diff --git a/arch/arm/crypto/.gitignore b/arch/arm/crypto/.gitignore
new file mode 100644
index 000000000000..6231d36b3635
--- /dev/null
+++ b/arch/arm/crypto/.gitignore
@@ -0,0 +1 @@
+aesbs-core.S
-- 
cgit 


From 3880d21450b3413c1b30440e8aca6e7dad7d9876 Mon Sep 17 00:00:00 2001
From: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Date: Fri, 13 Sep 2013 16:38:41 +0100
Subject: drivers: cpuidle: rename ARM big.LITTLE driver config and makefile
 entries

Following the reorganization of CPU idle drivers configurations into an ARM
specific Kconfig, the existing idle drivers Kconfig entries were renamed and
moved to the Kconfig.arm file. Makefile entries were updated accordingly.

This patch renames the entries in Kconfig.arm and makefile to make the newly
added big.LITTLE CPUidle driver compliant with the new naming convention.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/cpuidle/Kconfig.arm | 22 +++++++++++-----------
 drivers/cpuidle/Makefile    |  2 +-
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/cpuidle/Kconfig.arm b/drivers/cpuidle/Kconfig.arm
index 8e3660322308..6a7e6f2d8adc 100644
--- a/drivers/cpuidle/Kconfig.arm
+++ b/drivers/cpuidle/Kconfig.arm
@@ -2,6 +2,17 @@
 # ARM CPU Idle drivers
 #
 
+config ARM_BIG_LITTLE_CPUIDLE
+	bool "Support for ARM big.LITTLE processors"
+	depends on ARCH_VEXPRESS_TC2_PM
+	select ARM_CPU_SUSPEND
+	select CPU_IDLE_MULTIPLE_DRIVERS
+	help
+	  Select this option to enable CPU idle driver for big.LITTLE based
+	  ARM systems. Driver manages CPUs coordination through MCPM and
+	  define different C-states for little and big cores through the
+	  multiple CPU idle drivers infrastructure.
+
 config ARM_HIGHBANK_CPUIDLE
 	bool "CPU Idle Driver for Calxeda processors"
 	depends on ARCH_HIGHBANK
@@ -26,14 +37,3 @@ config ARM_U8500_CPUIDLE
 	depends on ARCH_U8500
 	help
 	  Select this to enable cpuidle for ST-E u8500 processors
-
-config CPU_IDLE_BIG_LITTLE
-	bool "Support for ARM big.LITTLE processors"
-	depends on ARCH_VEXPRESS_TC2_PM
-	select ARM_CPU_SUSPEND
-	select CPU_IDLE_MULTIPLE_DRIVERS
-	help
-	  Select this option to enable CPU idle driver for big.LITTLE based
-	  ARM systems. Driver manages CPUs coordination through MCPM and
-	  define different C-states for little and big cores through the
-	  multiple CPU idle drivers infrastructure.
diff --git a/drivers/cpuidle/Makefile b/drivers/cpuidle/Makefile
index cea5ef58876d..d08bd4055a49 100644
--- a/drivers/cpuidle/Makefile
+++ b/drivers/cpuidle/Makefile
@@ -7,8 +7,8 @@ obj-$(CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED) += coupled.o
 
 ##################################################################################
 # ARM SoC drivers
+obj-$(CONFIG_ARM_BIG_LITTLE_CPUIDLE)	+= cpuidle-big_little.o
 obj-$(CONFIG_ARM_HIGHBANK_CPUIDLE)	+= cpuidle-calxeda.o
 obj-$(CONFIG_ARM_KIRKWOOD_CPUIDLE)	+= cpuidle-kirkwood.o
 obj-$(CONFIG_ARM_ZYNQ_CPUIDLE)		+= cpuidle-zynq.o
 obj-$(CONFIG_ARM_U8500_CPUIDLE)         += cpuidle-ux500.o
-obj-$(CONFIG_CPU_IDLE_BIG_LITTLE)	+= cpuidle-big_little.o
-- 
cgit 


From 4aa88fbe6d6f78a8a464445eb6b55a360e3d3733 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Fri, 27 Sep 2013 09:46:09 +0200
Subject: ARM: zynq: cpuidle: Remove useless compatibility string

All zynq platforms have this compatibility string and there is no any other
clone.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
---
 drivers/cpuidle/cpuidle-zynq.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/cpuidle/cpuidle-zynq.c b/drivers/cpuidle/cpuidle-zynq.c
index 38e03a183591..ab6c4b4ffc7b 100644
--- a/drivers/cpuidle/cpuidle-zynq.c
+++ b/drivers/cpuidle/cpuidle-zynq.c
@@ -28,7 +28,6 @@
 #include <linux/init.h>
 #include <linux/cpu_pm.h>
 #include <linux/cpuidle.h>
-#include <linux/of.h>
 #include <asm/proc-fns.h>
 #include <asm/cpuidle.h>
 
@@ -72,9 +71,6 @@ static struct cpuidle_driver zynq_idle_driver = {
 /* Initialize CPU idle by registering the idle states */
 static int __init zynq_cpuidle_init(void)
 {
-	if (!of_machine_is_compatible("xlnx,zynq-7000"))
-		return -ENODEV;
-
 	pr_info("Xilinx Zynq CpuIdle Driver started\n");
 
 	return cpuidle_register(&zynq_idle_driver, NULL);
-- 
cgit 


From 3e8ceca6c76ec2d5ee47ece0420cf10d041cf58f Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Sat, 21 Sep 2013 18:41:02 +0200
Subject: ARM: zynq: cpuidle: convert to platform driver

As the ux500 and the kirkwood driver, make the zynq driver a platform driver

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Michal Simek <michal.simek@xilinx.com>
Tested-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
---
 arch/arm/mach-zynq/common.c    |  6 ++++++
 drivers/cpuidle/cpuidle-zynq.c | 13 +++++++++++--
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-zynq/common.c b/arch/arm/mach-zynq/common.c
index 5f252569c689..9a7bd137c8fd 100644
--- a/arch/arm/mach-zynq/common.c
+++ b/arch/arm/mach-zynq/common.c
@@ -44,6 +44,10 @@ static struct of_device_id zynq_of_bus_ids[] __initdata = {
 	{}
 };
 
+static struct platform_device zynq_cpuidle_device = {
+	.name = "cpuidle-zynq",
+};
+
 /**
  * zynq_init_machine - System specific initialization, intended to be
  *		       called from board specific initialization.
@@ -56,6 +60,8 @@ static void __init zynq_init_machine(void)
 	l2x0_of_init(0x02060000, 0xF0F0FFFF);
 
 	of_platform_bus_probe(NULL, zynq_of_bus_ids, NULL);
+
+	platform_device_register(&zynq_cpuidle_device);
 }
 
 static void __init zynq_timer_init(void)
diff --git a/drivers/cpuidle/cpuidle-zynq.c b/drivers/cpuidle/cpuidle-zynq.c
index ab6c4b4ffc7b..aded75928028 100644
--- a/drivers/cpuidle/cpuidle-zynq.c
+++ b/drivers/cpuidle/cpuidle-zynq.c
@@ -28,6 +28,7 @@
 #include <linux/init.h>
 #include <linux/cpu_pm.h>
 #include <linux/cpuidle.h>
+#include <linux/platform_device.h>
 #include <asm/proc-fns.h>
 #include <asm/cpuidle.h>
 
@@ -69,11 +70,19 @@ static struct cpuidle_driver zynq_idle_driver = {
 };
 
 /* Initialize CPU idle by registering the idle states */
-static int __init zynq_cpuidle_init(void)
+static int zynq_cpuidle_probe(struct platform_device *pdev)
 {
 	pr_info("Xilinx Zynq CpuIdle Driver started\n");
 
 	return cpuidle_register(&zynq_idle_driver, NULL);
 }
 
-device_initcall(zynq_cpuidle_init);
+static struct platform_driver zynq_cpuidle_driver = {
+	.driver = {
+		.name = "cpuidle-zynq",
+		.owner = THIS_MODULE,
+	},
+	.probe = zynq_cpuidle_probe,
+};
+
+module_platform_driver(zynq_cpuidle_driver);
-- 
cgit 


From 2c2b24d9c3e96d5cf974be4559a936e7f3b50225 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Fri, 27 Sep 2013 18:57:07 +0200
Subject: ARM: ux500: cpuidle: fix section mismatch

The dbx500_cpuidle_probe is tagged as an __init section but the variable
dbx500_cpuidle_plat_driver is not.

The dbx500_cpuidle_probe could not be declared as __init because of macro
module_platform_driver builds the exit function, tags as __exit and this one
refers to the dbx500_cpuidle_plat_driver which is an __initdata.

That leads to a section mismatch.

Fix it by removing the __init tag for the probe function.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/cpuidle/cpuidle-ux500.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cpuidle/cpuidle-ux500.c b/drivers/cpuidle/cpuidle-ux500.c
index e0564652af35..5e35804b1a95 100644
--- a/drivers/cpuidle/cpuidle-ux500.c
+++ b/drivers/cpuidle/cpuidle-ux500.c
@@ -111,7 +111,7 @@ static struct cpuidle_driver ux500_idle_driver = {
 	.state_count = 2,
 };
 
-static int __init dbx500_cpuidle_probe(struct platform_device *pdev)
+static int dbx500_cpuidle_probe(struct platform_device *pdev)
 {
 	/* Configure wake up reasons */
 	prcmu_enable_wakeups(PRCMU_WAKEUP(ARM) | PRCMU_WAKEUP(RTC) |
-- 
cgit 


From 7528ca1c5a3821951695e0e55daf192097a9925a Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 7 Oct 2013 03:55:52 -0700
Subject: Bluetooth: Read location data on AMP controller init

When initializing an AMP controller, read its current known location
data so that it can be analyzed later on.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci.h | 2 ++
 net/bluetooth/hci_core.c    | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 3616ea794eb1..c8a91cb20173 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -851,6 +851,8 @@ struct hci_rp_read_inq_rsp_tx_power {
 
 #define HCI_OP_SET_EVENT_MASK_PAGE_2	0x0c63
 
+#define HCI_OP_READ_LOCATION_DATA	0x0c64
+
 #define HCI_OP_READ_FLOW_CONTROL_MODE	0x0c66
 struct hci_rp_read_flow_control_mode {
 	__u8     status;
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 99f83abbcaa6..967739c0285b 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -318,6 +318,9 @@ static void amp_init(struct hci_request *req)
 
 	/* Read Data Blk size */
 	hci_req_add(req, HCI_OP_READ_DATA_BLOCK_SIZE, 0, NULL);
+
+	/* Read Location Data */
+	hci_req_add(req, HCI_OP_READ_LOCATION_DATA, 0, NULL);
 }
 
 static void hci_init1_req(struct hci_request *req, unsigned long opt)
-- 
cgit 


From f38ba94147dd568b635be83b2fb571303ce3404c Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 7 Oct 2013 03:55:53 -0700
Subject: Bluetooth: Read flow control mode on AMP controller init

When initializing an AMP controller, read its current flow control
mode so that the correct value is used.

The AMP controller defaults to block based flow control and this
extra command is just to double check.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 967739c0285b..0c636ba1ba16 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -319,6 +319,9 @@ static void amp_init(struct hci_request *req)
 	/* Read Data Blk size */
 	hci_req_add(req, HCI_OP_READ_DATA_BLOCK_SIZE, 0, NULL);
 
+	/* Read Flow Control Mode */
+	hci_req_add(req, HCI_OP_READ_FLOW_CONTROL_MODE, 0, NULL);
+
 	/* Read Location Data */
 	hci_req_add(req, HCI_OP_READ_LOCATION_DATA, 0, NULL);
 }
-- 
cgit 


From 7b2262920db2b98fe2cd32cde52141f02fd9eecf Mon Sep 17 00:00:00 2001
From: Luosong <android@generaltouch.com>
Date: Wed, 2 Oct 2013 11:20:00 +0200
Subject: HID: multitouch: Fix GeneralTouch products and add more PIDs

GeneralTouch products should use the quirk SLOT_IS_CONTACTID
instead of SLOT_IS_CONTACTNUMBER.

Adding PIDs 0101,e100,0102,0106,010a from the new products.

Tested on new and older products by GeneralTouch engineers.

Signed-off-by: Luosong <android@generaltouch.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-ids.h        |  5 +++++
 drivers/hid/hid-multitouch.c | 19 +++++++++++++++++--
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index e60e8d530697..9a91dee2cfe9 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -332,6 +332,11 @@
 #define USB_VENDOR_ID_GENERAL_TOUCH	0x0dfc
 #define USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS 0x0003
 #define USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS 0x0100
+#define USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101 0x0101
+#define USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102 0x0102
+#define USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106 0x0106
+#define USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A 0x010a
+#define USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100 0xe100
 
 #define USB_VENDOR_ID_GLAB		0x06c2
 #define USB_DEVICE_ID_4_PHIDGETSERVO_30	0x0038
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index 5e5fe1b8eebb..cb3250c5a397 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -250,12 +250,12 @@ static struct mt_class mt_classes[] = {
 	{ .name	= MT_CLS_GENERALTOUCH_TWOFINGERS,
 		.quirks	= MT_QUIRK_NOT_SEEN_MEANS_UP |
 			MT_QUIRK_VALID_IS_INRANGE |
-			MT_QUIRK_SLOT_IS_CONTACTNUMBER,
+			MT_QUIRK_SLOT_IS_CONTACTID,
 		.maxcontacts = 2
 	},
 	{ .name	= MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
 		.quirks	= MT_QUIRK_NOT_SEEN_MEANS_UP |
-			MT_QUIRK_SLOT_IS_CONTACTNUMBER
+			MT_QUIRK_SLOT_IS_CONTACTID
 	},
 
 	{ .name = MT_CLS_FLATFROG,
@@ -1173,6 +1173,21 @@ static const struct hid_device_id mt_devices[] = {
 	{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
 		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
 			USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) },
+	{ .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS,
+		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+			USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) },
+	{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+			USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) },
+	{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+			USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) },
+	{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+			USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) },
+	{ .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS,
+		MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH,
+			USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) },
 
 	/* Gametel game controller */
 	{ .driver_data = MT_CLS_NSMU,
-- 
cgit 


From 1091a654ac1722b6ab4fc6533925c1a02486fff4 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sat, 7 Sep 2013 09:07:13 +0200
Subject: ARM: davinci: remove deprecated IRQF_DISABLED

This patch proposes to remove the IRQF_DISABLED flag from Davinci code ;)
It's a NOOP since 2.6.35, and will be removed one day

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/mach-davinci/board-da830-evm.c     | 2 +-
 arch/arm/mach-davinci/board-omapl138-hawk.c | 2 +-
 arch/arm/mach-davinci/time.c                | 4 ++--
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-davinci/board-da830-evm.c b/arch/arm/mach-davinci/board-da830-evm.c
index c4bdc0a1c36e..30a44e2df47e 100644
--- a/arch/arm/mach-davinci/board-da830-evm.c
+++ b/arch/arm/mach-davinci/board-da830-evm.c
@@ -74,7 +74,7 @@ static int da830_evm_usb_ocic_notify(da8xx_ocic_handler_t handler)
 	if (handler != NULL) {
 		da830_evm_usb_ocic_handler = handler;
 
-		error = request_irq(irq, da830_evm_usb_ocic_irq, IRQF_DISABLED |
+		error = request_irq(irq, da830_evm_usb_ocic_irq,
 				    IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 				    "OHCI over-current indicator", NULL);
 		if (error)
diff --git a/arch/arm/mach-davinci/board-omapl138-hawk.c b/arch/arm/mach-davinci/board-omapl138-hawk.c
index ab98c75cabb4..e0de2da41b5c 100644
--- a/arch/arm/mach-davinci/board-omapl138-hawk.c
+++ b/arch/arm/mach-davinci/board-omapl138-hawk.c
@@ -211,7 +211,7 @@ static int hawk_usb_ocic_notify(da8xx_ocic_handler_t handler)
 		hawk_usb_ocic_handler = handler;
 
 		error = request_irq(irq, omapl138_hawk_usb_ocic_irq,
-					IRQF_DISABLED | IRQF_TRIGGER_RISING |
+					IRQF_TRIGGER_RISING |
 					IRQF_TRIGGER_FALLING,
 					"OHCI over-current indicator", NULL);
 		if (error)
diff --git a/arch/arm/mach-davinci/time.c b/arch/arm/mach-davinci/time.c
index 7a55b5c95971..e7ada0ca72ee 100644
--- a/arch/arm/mach-davinci/time.c
+++ b/arch/arm/mach-davinci/time.c
@@ -181,7 +181,7 @@ static struct timer_s timers[] = {
 		.name      = "clockevent",
 		.opts      = TIMER_OPTS_DISABLED,
 		.irqaction = {
-			.flags   = IRQF_DISABLED | IRQF_TIMER,
+			.flags   = IRQF_TIMER,
 			.handler = timer_interrupt,
 		}
 	},
@@ -190,7 +190,7 @@ static struct timer_s timers[] = {
 		.period     = ~0,
 		.opts       = TIMER_OPTS_PERIODIC,
 		.irqaction = {
-			.flags   = IRQF_DISABLED | IRQF_TIMER,
+			.flags   = IRQF_TIMER,
 			.handler = freerun_interrupt,
 		}
 	},
-- 
cgit 


From c1f23a2bfc89a886776dc141130ca995ea16a826 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 7 Oct 2013 18:19:16 +0200
Subject: Bluetooth: Fix variable shadow warnings

Sparse points out three places where variables are shadowed,
rename two of the variables and remove the duplicate third.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/hci_event.c  | 12 +++++++-----
 net/bluetooth/l2cap_sock.c |  2 +-
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 224210ce82fc..221a185cc951 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1296,9 +1296,11 @@ static void hci_cs_remote_name_req(struct hci_dev *hdev, __u8 status)
 		goto unlock;
 
 	if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) {
-		struct hci_cp_auth_requested cp;
-		cp.handle = __cpu_to_le16(conn->handle);
-		hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED, sizeof(cp), &cp);
+		struct hci_cp_auth_requested auth_cp;
+
+		auth_cp.handle = __cpu_to_le16(conn->handle);
+		hci_send_cmd(hdev, HCI_OP_AUTH_REQUESTED,
+			     sizeof(auth_cp), &auth_cp);
 	}
 
 unlock:
@@ -3660,8 +3662,8 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
 	skb_pull(skb, HCI_EVENT_HDR_SIZE);
 
 	if (hdev->sent_cmd && bt_cb(hdev->sent_cmd)->req.event == event) {
-		struct hci_command_hdr *hdr = (void *) hdev->sent_cmd->data;
-		u16 opcode = __le16_to_cpu(hdr->opcode);
+		struct hci_command_hdr *cmd_hdr = (void *) hdev->sent_cmd->data;
+		u16 opcode = __le16_to_cpu(cmd_hdr->opcode);
 
 		hci_req_cmd_complete(hdev, opcode, 0);
 	}
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 9119898ef040..1daa4c579eb2 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -678,7 +678,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 		}
 
 		if (opt == BT_FLUSHABLE_OFF) {
-			struct l2cap_conn *conn = chan->conn;
+			conn = chan->conn;
 			/* proceed further only when we have l2cap_conn and
 			   No Flush support in the LM */
 			if (!conn || !lmp_no_flush_capable(conn->hcon->hdev)) {
-- 
cgit 


From 07d8a49c263c89c21d1e10b5550706ed8a58eb5e Mon Sep 17 00:00:00 2001
From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Tue, 1 Oct 2013 11:08:56 +0200
Subject: ARM: drop explicit selection of HAVE_CLK and CLKDEV_LOOKUP
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

CLKDEV_LOOKUP selects HAVE_CLK and COMMON_CLK selects CLKDEV_LOOKUP. So
all symbols that select at least two of these symbols can be simplified.

For imx, omap2 and ux500 some rearrangements were necessary before the
simplification.

Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Dinh Nguyen <dinguyen@altera.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/Kconfig               | 12 ------------
 arch/arm/mach-highbank/Kconfig |  1 -
 arch/arm/mach-imx/Kconfig      | 10 +---------
 arch/arm/mach-omap2/Kconfig    |  9 +--------
 arch/arm/mach-socfpga/Kconfig  |  1 -
 arch/arm/mach-spear/Kconfig    |  2 --
 arch/arm/mach-tegra/Kconfig    |  2 --
 arch/arm/mach-u300/Kconfig     |  1 -
 arch/arm/mach-ux500/Kconfig    | 29 ++++++++++++-----------------
 arch/arm/mach-vexpress/Kconfig |  2 --
 arch/arm/mach-vt8500/Kconfig   |  1 -
 11 files changed, 14 insertions(+), 56 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 2b8faa337e8b..f55f7ac4b135 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -358,7 +358,6 @@ config ARCH_AT91
 	bool "Atmel AT91"
 	select ARCH_REQUIRE_GPIOLIB
 	select CLKDEV_LOOKUP
-	select HAVE_CLK
 	select IRQ_DOMAIN
 	select NEED_MACH_GPIO_H
 	select NEED_MACH_IO_H if PCCARD
@@ -372,7 +371,6 @@ config ARCH_CLPS711X
 	bool "Cirrus Logic CLPS711x/EP721x/EP731x-based"
 	select ARCH_REQUIRE_GPIOLIB
 	select AUTO_ZRELADDR
-	select CLKDEV_LOOKUP
 	select CLKSRC_MMIO
 	select COMMON_CLK
 	select CPU_ARM720T
@@ -631,7 +629,6 @@ config ARCH_PXA
 config ARCH_MSM
 	bool "Qualcomm MSM"
 	select ARCH_REQUIRE_GPIOLIB
-	select CLKDEV_LOOKUP
 	select CLKSRC_OF if OF
 	select COMMON_CLK
 	select GENERIC_CLOCKEVENTS
@@ -649,7 +646,6 @@ config ARCH_SHMOBILE
 	select GENERIC_CLOCKEVENTS
 	select HAVE_ARM_SCU if SMP
 	select HAVE_ARM_TWD if SMP
-	select HAVE_CLK
 	select HAVE_MACH_CLKDEV
 	select HAVE_SMP
 	select MIGHT_HAVE_CACHE_L2X0
@@ -706,7 +702,6 @@ config ARCH_S3C24XX
 	select CLKSRC_SAMSUNG_PWM
 	select GENERIC_CLOCKEVENTS
 	select GPIO_SAMSUNG
-	select HAVE_CLK
 	select HAVE_S3C2410_I2C if I2C
 	select HAVE_S3C2410_WATCHDOG if WATCHDOG
 	select HAVE_S3C_RTC if RTC_CLASS
@@ -730,7 +725,6 @@ config ARCH_S3C64XX
 	select CPU_V6
 	select GENERIC_CLOCKEVENTS
 	select GPIO_SAMSUNG
-	select HAVE_CLK
 	select HAVE_S3C2410_I2C if I2C
 	select HAVE_S3C2410_WATCHDOG if WATCHDOG
 	select HAVE_TCM
@@ -754,7 +748,6 @@ config ARCH_S5P64X0
 	select CPU_V6
 	select GENERIC_CLOCKEVENTS
 	select GPIO_SAMSUNG
-	select HAVE_CLK
 	select HAVE_S3C2410_I2C if I2C
 	select HAVE_S3C2410_WATCHDOG if WATCHDOG
 	select HAVE_S3C_RTC if RTC_CLASS
@@ -773,7 +766,6 @@ config ARCH_S5PC100
 	select CPU_V7
 	select GENERIC_CLOCKEVENTS
 	select GPIO_SAMSUNG
-	select HAVE_CLK
 	select HAVE_S3C2410_I2C if I2C
 	select HAVE_S3C2410_WATCHDOG if WATCHDOG
 	select HAVE_S3C_RTC if RTC_CLASS
@@ -793,7 +785,6 @@ config ARCH_S5PV210
 	select CPU_V7
 	select GENERIC_CLOCKEVENTS
 	select GPIO_SAMSUNG
-	select HAVE_CLK
 	select HAVE_S3C2410_I2C if I2C
 	select HAVE_S3C2410_WATCHDOG if WATCHDOG
 	select HAVE_S3C_RTC if RTC_CLASS
@@ -810,11 +801,9 @@ config ARCH_EXYNOS
 	select ARCH_REQUIRE_GPIOLIB
 	select ARCH_SPARSEMEM_ENABLE
 	select ARM_GIC
-	select CLKDEV_LOOKUP
 	select COMMON_CLK
 	select CPU_V7
 	select GENERIC_CLOCKEVENTS
-	select HAVE_CLK
 	select HAVE_S3C2410_I2C if I2C
 	select HAVE_S3C2410_WATCHDOG if WATCHDOG
 	select HAVE_S3C_RTC if RTC_CLASS
@@ -851,7 +840,6 @@ config ARCH_OMAP1
 	select CLKSRC_MMIO
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_IRQ_CHIP
-	select HAVE_CLK
 	select HAVE_IDE
 	select IRQ_DOMAIN
 	select NEED_MACH_IO_H if PCCARD
diff --git a/arch/arm/mach-highbank/Kconfig b/arch/arm/mach-highbank/Kconfig
index 8e8437dea3ce..616408d76be5 100644
--- a/arch/arm/mach-highbank/Kconfig
+++ b/arch/arm/mach-highbank/Kconfig
@@ -12,7 +12,6 @@ config ARCH_HIGHBANK
 	select ARM_GIC
 	select ARM_TIMER_SP804
 	select CACHE_L2X0
-	select CLKDEV_LOOKUP
 	select COMMON_CLK
 	select CPU_V7
 	select GENERIC_CLOCKEVENTS
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 29a8af6922a8..a91909b95601 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -4,8 +4,8 @@ config ARCH_MXC
 	select ARM_CPU_SUSPEND if PM
 	select ARM_PATCH_PHYS_VIRT
 	select AUTO_ZRELADDR if !ZBOOT_ROM
-	select CLKDEV_LOOKUP
 	select CLKSRC_MMIO
+	select COMMON_CLK
 	select GENERIC_ALLOCATOR
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_IRQ_CHIP
@@ -92,14 +92,12 @@ config MACH_MX27
 config SOC_IMX1
 	bool
 	select ARCH_MX1
-	select COMMON_CLK
 	select CPU_ARM920T
 	select IMX_HAVE_IOMUX_V1
 	select MXC_AVIC
 
 config SOC_IMX21
 	bool
-	select COMMON_CLK
 	select CPU_ARM926T
 	select IMX_HAVE_IOMUX_V1
 	select MXC_AVIC
@@ -108,7 +106,6 @@ config SOC_IMX25
 	bool
 	select ARCH_MX25
 	select ARCH_MXC_IOMUX_V3
-	select COMMON_CLK
 	select CPU_ARM926T
 	select MXC_AVIC
 
@@ -116,7 +113,6 @@ config SOC_IMX27
 	bool
 	select ARCH_HAS_CPUFREQ
 	select ARCH_HAS_OPP
-	select COMMON_CLK
 	select CPU_ARM926T
 	select IMX_HAVE_IOMUX_V1
 	select MACH_MX27
@@ -124,7 +120,6 @@ config SOC_IMX27
 
 config SOC_IMX31
 	bool
-	select COMMON_CLK
 	select CPU_V6
 	select IMX_HAVE_PLATFORM_MXC_RNGA
 	select MXC_AVIC
@@ -133,7 +128,6 @@ config SOC_IMX31
 config SOC_IMX35
 	bool
 	select ARCH_MXC_IOMUX_V3
-	select COMMON_CLK
 	select CPU_V6K
 	select HAVE_EPIT
 	select MXC_AVIC
@@ -144,7 +138,6 @@ config SOC_IMX5
 	select ARCH_HAS_CPUFREQ
 	select ARCH_HAS_OPP
 	select ARCH_MXC_IOMUX_V3
-	select COMMON_CLK
 	select CPU_V7
 	select MXC_TZIC
 
@@ -791,7 +784,6 @@ config SOC_IMX6Q
 	select ARM_ERRATA_764369 if SMP
 	select ARM_ERRATA_775420
 	select ARM_GIC
-	select COMMON_CLK
 	select CPU_V7
 	select HAVE_ARM_SCU if SMP
 	select HAVE_ARM_TWD if SMP
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index b5fb5f7992df..c94624429680 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -8,7 +8,6 @@ config ARCH_OMAP2
 	select CPU_V6
 	select MULTI_IRQ_HANDLER
 	select SOC_HAS_OMAP2_SDRC
-	select COMMON_CLK
 
 config ARCH_OMAP3
 	bool "TI OMAP3"
@@ -22,7 +21,6 @@ config ARCH_OMAP3
 	select PM_OPP if PM
 	select PM_RUNTIME if CPU_IDLE
 	select SOC_HAS_OMAP2_SDRC
-	select COMMON_CLK
 	select USB_ARCH_HAS_EHCI if USB_SUPPORT
 
 config ARCH_OMAP4
@@ -45,7 +43,6 @@ config ARCH_OMAP4
 	select PM_OPP if PM
 	select PM_RUNTIME if CPU_IDLE
 	select USB_ARCH_HAS_EHCI if USB_SUPPORT
-	select COMMON_CLK
 	select ARM_ERRATA_754322
 	select ARM_ERRATA_775420
 
@@ -59,7 +56,6 @@ config SOC_OMAP5
 	select HAVE_ARM_SCU if SMP
 	select HAVE_ARM_TWD if LOCAL_TIMERS
 	select HAVE_SMP
-	select COMMON_CLK
 	select HAVE_ARM_ARCH_TIMER
 	select ARM_ERRATA_798181 if SMP
 
@@ -70,7 +66,6 @@ config SOC_AM33XX
 	select ARM_CPU_SUSPEND if PM
 	select CPU_V7
 	select MULTI_IRQ_HANDLER
-	select COMMON_CLK
 
 config SOC_AM43XX
 	bool "TI AM43x"
@@ -79,7 +74,6 @@ config SOC_AM43XX
 	select ARCH_OMAP2PLUS
 	select MULTI_IRQ_HANDLER
 	select ARM_GIC
-	select COMMON_CLK
 	select MACH_OMAP_GENERIC
 
 config ARCH_OMAP2PLUS
@@ -89,11 +83,10 @@ config ARCH_OMAP2PLUS
 	select ARCH_HAS_HOLES_MEMORYMODEL
 	select ARCH_OMAP
 	select ARCH_REQUIRE_GPIOLIB
-	select CLKDEV_LOOKUP
 	select CLKSRC_MMIO
+	select COMMON_CLK
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_IRQ_CHIP
-	select HAVE_CLK
 	select OMAP_DM_TIMER
 	select PINCTRL
 	select PROC_DEVICETREE if PROC_FS
diff --git a/arch/arm/mach-socfpga/Kconfig b/arch/arm/mach-socfpga/Kconfig
index dd86db467521..037100a1563a 100644
--- a/arch/arm/mach-socfpga/Kconfig
+++ b/arch/arm/mach-socfpga/Kconfig
@@ -4,7 +4,6 @@ config ARCH_SOCFPGA
 	select ARM_AMBA
 	select ARM_GIC
 	select CACHE_L2X0
-	select CLKDEV_LOOKUP
 	select COMMON_CLK
 	select CPU_V7
 	select DW_APB_TIMER_OF
diff --git a/arch/arm/mach-spear/Kconfig b/arch/arm/mach-spear/Kconfig
index df0d59afeb40..ac1710e64d9a 100644
--- a/arch/arm/mach-spear/Kconfig
+++ b/arch/arm/mach-spear/Kconfig
@@ -7,11 +7,9 @@ menuconfig PLAT_SPEAR
 	default PLAT_SPEAR_SINGLE
 	select ARCH_REQUIRE_GPIOLIB
 	select ARM_AMBA
-	select CLKDEV_LOOKUP
 	select CLKSRC_MMIO
 	select COMMON_CLK
 	select GENERIC_CLOCKEVENTS
-	select HAVE_CLK
 
 if PLAT_SPEAR
 
diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index 67a76f2dfb9f..0c2f44aed404 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -3,7 +3,6 @@ config ARCH_TEGRA
 	select ARCH_HAS_CPUFREQ
 	select ARCH_REQUIRE_GPIOLIB
 	select ARM_GIC
-	select CLKDEV_LOOKUP
 	select CLKSRC_MMIO
 	select CLKSRC_OF
 	select COMMON_CLK
@@ -11,7 +10,6 @@ config ARCH_TEGRA
 	select GENERIC_CLOCKEVENTS
 	select HAVE_ARM_SCU if SMP
 	select HAVE_ARM_TWD if SMP
-	select HAVE_CLK
 	select HAVE_SMP
 	select MIGHT_HAVE_CACHE_L2X0
 	select MIGHT_HAVE_PCI
diff --git a/arch/arm/mach-u300/Kconfig b/arch/arm/mach-u300/Kconfig
index a1659863bfd5..8e23071bd1b3 100644
--- a/arch/arm/mach-u300/Kconfig
+++ b/arch/arm/mach-u300/Kconfig
@@ -5,7 +5,6 @@ config ARCH_U300
 	select ARM_AMBA
 	select ARM_PATCH_PHYS_VIRT
 	select ARM_VIC
-	select CLKDEV_LOOKUP
 	select CLKSRC_MMIO
 	select CLKSRC_OF
 	select COMMON_CLK
diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig
index 99a28d628297..c67f8ad5ccd5 100644
--- a/arch/arm/mach-ux500/Kconfig
+++ b/arch/arm/mach-ux500/Kconfig
@@ -1,37 +1,32 @@
 config ARCH_U8500
 	bool "ST-Ericsson U8500 Series" if ARCH_MULTI_V7
 	depends on MMU
+	select AB8500_CORE
+	select ABX500_CORE
 	select ARCH_HAS_CPUFREQ
 	select ARCH_REQUIRE_GPIOLIB
 	select ARM_AMBA
-	select CLKDEV_LOOKUP
+	select ARM_ERRATA_754322
+	select ARM_ERRATA_764369 if SMP
+	select ARM_GIC
+	select CACHE_L2X0
+	select CLKSRC_NOMADIK_MTU
+	select COMMON_CLK
 	select CPU_V7
 	select GENERIC_CLOCKEVENTS
 	select HAVE_ARM_SCU if SMP
 	select HAVE_ARM_TWD if SMP
 	select HAVE_SMP
 	select MIGHT_HAVE_CACHE_L2X0
+	select PINCTRL
+	select PINCTRL_ABX500
+	select PINCTRL_NOMADIK
+	select PL310_ERRATA_753970 if CACHE_PL310
 	help
 	  Support for ST-Ericsson's Ux500 architecture
 
 if ARCH_U8500
 
-config UX500_SOC_COMMON
-	bool
-	default y
-	select ABX500_CORE
-	select AB8500_CORE
-	select ARM_ERRATA_754322
-	select ARM_ERRATA_764369 if SMP
-	select ARM_GIC
-	select CACHE_L2X0
-	select CLKSRC_NOMADIK_MTU
-	select COMMON_CLK
-	select PINCTRL
-	select PINCTRL_NOMADIK
-	select PINCTRL_ABX500
-	select PL310_ERRATA_753970 if CACHE_PL310
-
 config UX500_SOC_DB8500
 	bool
 	select CPU_FREQ_TABLE if CPU_FREQ
diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig
index 365795447804..d7e7422527ca 100644
--- a/arch/arm/mach-vexpress/Kconfig
+++ b/arch/arm/mach-vexpress/Kconfig
@@ -4,14 +4,12 @@ config ARCH_VEXPRESS
 	select ARM_AMBA
 	select ARM_GIC
 	select ARM_TIMER_SP804
-	select CLKDEV_LOOKUP
 	select COMMON_CLK
 	select COMMON_CLK_VERSATILE
 	select CPU_V7
 	select GENERIC_CLOCKEVENTS
 	select HAVE_ARM_SCU if SMP
 	select HAVE_ARM_TWD if SMP
-	select HAVE_CLK
 	select HAVE_PATA_PLATFORM
 	select HAVE_SMP
 	select ICST
diff --git a/arch/arm/mach-vt8500/Kconfig b/arch/arm/mach-vt8500/Kconfig
index 9b252934b206..927be93b692e 100644
--- a/arch/arm/mach-vt8500/Kconfig
+++ b/arch/arm/mach-vt8500/Kconfig
@@ -5,7 +5,6 @@ config ARCH_VT8500
 	select CLKDEV_LOOKUP
 	select CLKSRC_OF
 	select GENERIC_CLOCKEVENTS
-	select HAVE_CLK
 	select VT8500_TIMER
 	select PINCTRL
 	help
-- 
cgit 


From 308964caeebc45eb7723c87818076f61fa1a2e1b Mon Sep 17 00:00:00 2001
From: Loc Ho <lho@apm.com>
Date: Wed, 26 Jun 2013 11:56:09 -0600
Subject: clk: Add APM X-Gene SoC clock driver

clk: Add APM X-Gene SoC clock driver for reference, PLL, and device clocks.

Signed-off-by: Loc Ho <lho@apm.com>
Signed-off-by: Kumar Sankaran <ksankaran@apm.com>
Signed-off-by: Vinayak Kale <vkale@apm.com>
Signed-off-by: Feng Kan <fkan@apm.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
 drivers/clk/Kconfig     |   7 +
 drivers/clk/Makefile    |   1 +
 drivers/clk/clk-xgene.c | 521 ++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 529 insertions(+)
 create mode 100644 drivers/clk/clk-xgene.c

diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 279407a36391..dd37f91289d2 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -93,6 +93,13 @@ config CLK_PPC_CORENET
 	  This adds the clock driver support for Freescale PowerPC corenet
 	  platforms using common clock framework.
 
+config COMMON_CLK_XGENE
+	bool "Clock driver for APM XGene SoC"
+	default y
+	depends on ARM64
+	---help---
+	  Sypport for the APM X-Gene SoC reference, PLL, and device clocks.
+
 endmenu
 
 source "drivers/clk/mvebu/Kconfig"
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 7b111062ccba..270f3fd2fbc0 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -32,6 +32,7 @@ obj-$(CONFIG_ARCH_VT8500)	+= clk-vt8500.o
 obj-$(CONFIG_ARCH_ZYNQ)		+= zynq/
 obj-$(CONFIG_ARCH_TEGRA)	+= tegra/
 obj-$(CONFIG_PLAT_SAMSUNG)	+= samsung/
+obj-$(CONFIG_COMMON_CLK_XGENE)  += clk-xgene.o
 
 obj-$(CONFIG_X86)		+= x86/
 
diff --git a/drivers/clk/clk-xgene.c b/drivers/clk/clk-xgene.c
new file mode 100644
index 000000000000..dd8a62d8f11f
--- /dev/null
+++ b/drivers/clk/clk-xgene.c
@@ -0,0 +1,521 @@
+/*
+ * clk-xgene.c - AppliedMicro X-Gene Clock Interface
+ *
+ * Copyright (c) 2013, Applied Micro Circuits Corporation
+ * Author: Loc Ho <lho@apm.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/clkdev.h>
+#include <linux/clk-provider.h>
+#include <linux/of_address.h>
+#include <asm/setup.h>
+
+/* Register SCU_PCPPLL bit fields */
+#define N_DIV_RD(src)			(((src) & 0x000001ff))
+
+/* Register SCU_SOCPLL bit fields */
+#define CLKR_RD(src)			(((src) & 0x07000000)>>24)
+#define CLKOD_RD(src)			(((src) & 0x00300000)>>20)
+#define REGSPEC_RESET_F1_MASK		0x00010000
+#define CLKF_RD(src)			(((src) & 0x000001ff))
+
+#define XGENE_CLK_DRIVER_VER		"0.1"
+
+static DEFINE_SPINLOCK(clk_lock);
+
+static inline u32 xgene_clk_read(void *csr)
+{
+	return readl_relaxed(csr);
+}
+
+static inline void xgene_clk_write(u32 data, void *csr)
+{
+	return writel_relaxed(data, csr);
+}
+
+/* PLL Clock */
+enum xgene_pll_type {
+	PLL_TYPE_PCP = 0,
+	PLL_TYPE_SOC = 1,
+};
+
+struct xgene_clk_pll {
+	struct clk_hw	hw;
+	const char	*name;
+	void __iomem	*reg;
+	spinlock_t	*lock;
+	u32		pll_offset;
+	enum xgene_pll_type	type;
+};
+
+#define to_xgene_clk_pll(_hw) container_of(_hw, struct xgene_clk_pll, hw)
+
+static int xgene_clk_pll_is_enabled(struct clk_hw *hw)
+{
+	struct xgene_clk_pll *pllclk = to_xgene_clk_pll(hw);
+	u32 data;
+
+	data = xgene_clk_read(pllclk->reg + pllclk->pll_offset);
+	pr_debug("%s pll %s\n", pllclk->name,
+		data & REGSPEC_RESET_F1_MASK ? "disabled" : "enabled");
+
+	return data & REGSPEC_RESET_F1_MASK ? 0 : 1;
+}
+
+static unsigned long xgene_clk_pll_recalc_rate(struct clk_hw *hw,
+				unsigned long parent_rate)
+{
+	struct xgene_clk_pll *pllclk = to_xgene_clk_pll(hw);
+	unsigned long fref;
+	unsigned long fvco;
+	u32 pll;
+	u32 nref;
+	u32 nout;
+	u32 nfb;
+
+	pll = xgene_clk_read(pllclk->reg + pllclk->pll_offset);
+
+	if (pllclk->type == PLL_TYPE_PCP) {
+		/*
+		 * PLL VCO = Reference clock * NF
+		 * PCP PLL = PLL_VCO / 2
+		 */
+		nout = 2;
+		fvco = parent_rate * (N_DIV_RD(pll) + 4);
+	} else {
+		/*
+		 * Fref = Reference Clock / NREF;
+		 * Fvco = Fref * NFB;
+		 * Fout = Fvco / NOUT;
+		 */
+		nref = CLKR_RD(pll) + 1;
+		nout = CLKOD_RD(pll) + 1;
+		nfb = CLKF_RD(pll);
+		fref = parent_rate / nref;
+		fvco = fref * nfb;
+	}
+	pr_debug("%s pll recalc rate %ld parent %ld\n", pllclk->name,
+		fvco / nout, parent_rate);
+
+	return fvco / nout;
+}
+
+const struct clk_ops xgene_clk_pll_ops = {
+	.is_enabled = xgene_clk_pll_is_enabled,
+	.recalc_rate = xgene_clk_pll_recalc_rate,
+};
+
+static struct clk *xgene_register_clk_pll(struct device *dev,
+	const char *name, const char *parent_name,
+	unsigned long flags, void __iomem *reg, u32 pll_offset,
+	u32 type, spinlock_t *lock)
+{
+	struct xgene_clk_pll *apmclk;
+	struct clk *clk;
+	struct clk_init_data init;
+
+	/* allocate the APM clock structure */
+	apmclk = kzalloc(sizeof(*apmclk), GFP_KERNEL);
+	if (!apmclk) {
+		pr_err("%s: could not allocate APM clk\n", __func__);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	init.name = name;
+	init.ops = &xgene_clk_pll_ops;
+	init.flags = flags;
+	init.parent_names = parent_name ? &parent_name : NULL;
+	init.num_parents = parent_name ? 1 : 0;
+
+	apmclk->name = name;
+	apmclk->reg = reg;
+	apmclk->lock = lock;
+	apmclk->pll_offset = pll_offset;
+	apmclk->type = type;
+	apmclk->hw.init = &init;
+
+	/* Register the clock */
+	clk = clk_register(dev, &apmclk->hw);
+	if (IS_ERR(clk)) {
+		pr_err("%s: could not register clk %s\n", __func__, name);
+		kfree(apmclk);
+		return NULL;
+	}
+	return clk;
+}
+
+static void xgene_pllclk_init(struct device_node *np, enum xgene_pll_type pll_type)
+{
+        const char *clk_name = np->full_name;
+        struct clk *clk;
+        void *reg;
+
+        reg = of_iomap(np, 0);
+        if (reg == NULL) {
+                pr_err("Unable to map CSR register for %s\n", np->full_name);
+                return;
+        }
+        of_property_read_string(np, "clock-output-names", &clk_name);
+        clk = xgene_register_clk_pll(NULL,
+                        clk_name, of_clk_get_parent_name(np, 0),
+                        CLK_IS_ROOT, reg, 0, pll_type, &clk_lock);
+        if (!IS_ERR(clk)) {
+                of_clk_add_provider(np, of_clk_src_simple_get, clk);
+                clk_register_clkdev(clk, clk_name, NULL);
+                pr_debug("Add %s clock PLL\n", clk_name);
+        }
+}
+
+static void xgene_socpllclk_init(struct device_node *np)
+{
+	xgene_pllclk_init(np, PLL_TYPE_SOC);
+}
+
+static void xgene_pcppllclk_init(struct device_node *np)
+{
+	xgene_pllclk_init(np, PLL_TYPE_PCP);
+}
+
+/* IP Clock */
+struct xgene_dev_parameters {
+	void __iomem *csr_reg;		/* CSR for IP clock */
+	u32 reg_clk_offset;		/* Offset to clock enable CSR */
+	u32 reg_clk_mask;		/* Mask bit for clock enable */
+	u32 reg_csr_offset;		/* Offset to CSR reset */
+	u32 reg_csr_mask;		/* Mask bit for disable CSR reset */
+	void __iomem *divider_reg;	/* CSR for divider */
+	u32 reg_divider_offset;		/* Offset to divider register */
+	u32 reg_divider_shift;		/* Bit shift to divider field */
+	u32 reg_divider_width;		/* Width of the bit to divider field */
+};
+
+struct xgene_clk {
+	struct clk_hw	hw;
+	const char	*name;
+	spinlock_t	*lock;
+	struct xgene_dev_parameters	param;
+};
+
+#define to_xgene_clk(_hw) container_of(_hw, struct xgene_clk, hw)
+
+static int xgene_clk_enable(struct clk_hw *hw)
+{
+	struct xgene_clk *pclk = to_xgene_clk(hw);
+	unsigned long flags = 0;
+	u32 data;
+
+	if (pclk->lock)
+		spin_lock_irqsave(pclk->lock, flags);
+
+	if (pclk->param.csr_reg != NULL) {
+		pr_debug("%s clock enabled\n", pclk->name);
+		/* First enable the clock */
+		data = xgene_clk_read(pclk->param.csr_reg +
+					pclk->param.reg_clk_offset);
+		data |= pclk->param.reg_clk_mask;
+		xgene_clk_write(data, pclk->param.csr_reg +
+					pclk->param.reg_clk_offset);
+		pr_debug("%s clock PADDR base 0x%016LX clk offset 0x%08X mask 0x%08X value 0x%08X\n",
+			pclk->name, __pa(pclk->param.csr_reg),
+			pclk->param.reg_clk_offset, pclk->param.reg_clk_mask,
+			data);
+
+		/* Second enable the CSR */
+		data = xgene_clk_read(pclk->param.csr_reg +
+					pclk->param.reg_csr_offset);
+		data &= ~pclk->param.reg_csr_mask;
+		xgene_clk_write(data, pclk->param.csr_reg +
+					pclk->param.reg_csr_offset);
+		pr_debug("%s CSR RESET PADDR base 0x%016LX csr offset 0x%08X mask 0x%08X value 0x%08X\n",
+			pclk->name, __pa(pclk->param.csr_reg),
+			pclk->param.reg_csr_offset, pclk->param.reg_csr_mask,
+			data);
+	}
+
+	if (pclk->lock)
+		spin_unlock_irqrestore(pclk->lock, flags);
+
+	return 0;
+}
+
+static void xgene_clk_disable(struct clk_hw *hw)
+{
+	struct xgene_clk *pclk = to_xgene_clk(hw);
+	unsigned long flags = 0;
+	u32 data;
+
+	if (pclk->lock)
+		spin_lock_irqsave(pclk->lock, flags);
+
+	if (pclk->param.csr_reg != NULL) {
+		pr_debug("%s clock disabled\n", pclk->name);
+		/* First put the CSR in reset */
+		data = xgene_clk_read(pclk->param.csr_reg +
+					pclk->param.reg_csr_offset);
+		data |= pclk->param.reg_csr_mask;
+		xgene_clk_write(data, pclk->param.csr_reg +
+					pclk->param.reg_csr_offset);
+
+		/* Second disable the clock */
+		data = xgene_clk_read(pclk->param.csr_reg +
+					pclk->param.reg_clk_offset);
+		data &= ~pclk->param.reg_clk_mask;
+		xgene_clk_write(data, pclk->param.csr_reg +
+					pclk->param.reg_clk_offset);
+	}
+
+	if (pclk->lock)
+		spin_unlock_irqrestore(pclk->lock, flags);
+}
+
+static int xgene_clk_is_enabled(struct clk_hw *hw)
+{
+	struct xgene_clk *pclk = to_xgene_clk(hw);
+	u32 data = 0;
+
+	if (pclk->param.csr_reg != NULL) {
+		pr_debug("%s clock checking\n", pclk->name);
+		data = xgene_clk_read(pclk->param.csr_reg +
+					pclk->param.reg_clk_offset);
+		pr_debug("%s clock is %s\n", pclk->name,
+			data & pclk->param.reg_clk_mask ? "enabled" :
+							"disabled");
+	}
+
+	if (pclk->param.csr_reg == NULL)
+		return 1;
+	return data & pclk->param.reg_clk_mask ? 1 : 0;
+}
+
+static unsigned long xgene_clk_recalc_rate(struct clk_hw *hw,
+				unsigned long parent_rate)
+{
+	struct xgene_clk *pclk = to_xgene_clk(hw);
+	u32 data;
+
+	if (pclk->param.divider_reg) {
+		data = xgene_clk_read(pclk->param.divider_reg +
+					pclk->param.reg_divider_offset);
+		data >>= pclk->param.reg_divider_shift;
+		data &= (1 << pclk->param.reg_divider_width) - 1;
+
+		pr_debug("%s clock recalc rate %ld parent %ld\n",
+			pclk->name, parent_rate / data, parent_rate);
+		return parent_rate / data;
+	} else {
+		pr_debug("%s clock recalc rate %ld parent %ld\n",
+			pclk->name, parent_rate, parent_rate);
+		return parent_rate;
+	}
+}
+
+static int xgene_clk_set_rate(struct clk_hw *hw, unsigned long rate,
+				unsigned long parent_rate)
+{
+	struct xgene_clk *pclk = to_xgene_clk(hw);
+	unsigned long flags = 0;
+	u32 data;
+	u32 divider;
+	u32 divider_save;
+
+	if (pclk->lock)
+		spin_lock_irqsave(pclk->lock, flags);
+
+	if (pclk->param.divider_reg) {
+		/* Let's compute the divider */
+		if (rate > parent_rate)
+			rate = parent_rate;
+		divider_save = divider = parent_rate / rate; /* Rounded down */
+		divider &= (1 << pclk->param.reg_divider_width) - 1;
+		divider <<= pclk->param.reg_divider_shift;
+
+		/* Set new divider */
+		data = xgene_clk_read(pclk->param.divider_reg +
+				pclk->param.reg_divider_offset);
+		data &= ~((1 << pclk->param.reg_divider_width) - 1);
+		data |= divider;
+		xgene_clk_write(data, pclk->param.divider_reg +
+					pclk->param.reg_divider_offset);
+		pr_debug("%s clock set rate %ld\n", pclk->name,
+			parent_rate / divider_save);
+	} else {
+		divider_save = 1;
+	}
+
+	if (pclk->lock)
+		spin_unlock_irqrestore(pclk->lock, flags);
+
+	return parent_rate / divider_save;
+}
+
+static long xgene_clk_round_rate(struct clk_hw *hw, unsigned long rate,
+				unsigned long *prate)
+{
+	struct xgene_clk *pclk = to_xgene_clk(hw);
+	unsigned long parent_rate = *prate;
+	u32 divider;
+
+	if (pclk->param.divider_reg) {
+		/* Let's compute the divider */
+		if (rate > parent_rate)
+			rate = parent_rate;
+		divider = parent_rate / rate;   /* Rounded down */
+	} else {
+		divider = 1;
+	}
+
+	return parent_rate / divider;
+}
+
+const struct clk_ops xgene_clk_ops = {
+	.enable = xgene_clk_enable,
+	.disable = xgene_clk_disable,
+	.is_enabled = xgene_clk_is_enabled,
+	.recalc_rate = xgene_clk_recalc_rate,
+	.set_rate = xgene_clk_set_rate,
+	.round_rate = xgene_clk_round_rate,
+};
+
+static struct clk *xgene_register_clk(struct device *dev,
+		const char *name, const char *parent_name,
+		struct xgene_dev_parameters *parameters, spinlock_t *lock)
+{
+	struct xgene_clk *apmclk;
+	struct clk *clk;
+	struct clk_init_data init;
+	int rc;
+
+	/* allocate the APM clock structure */
+	apmclk = kzalloc(sizeof(*apmclk), GFP_KERNEL);
+	if (!apmclk) {
+		pr_err("%s: could not allocate APM clk\n", __func__);
+		return ERR_PTR(-ENOMEM);
+	}
+
+	init.name = name;
+	init.ops = &xgene_clk_ops;
+	init.flags = 0;
+	init.parent_names = parent_name ? &parent_name : NULL;
+	init.num_parents = parent_name ? 1 : 0;
+
+	apmclk->name = name;
+	apmclk->lock = lock;
+	apmclk->hw.init = &init;
+	apmclk->param = *parameters;
+
+	/* Register the clock */
+	clk = clk_register(dev, &apmclk->hw);
+	if (IS_ERR(clk)) {
+		pr_err("%s: could not register clk %s\n", __func__, name);
+		kfree(apmclk);
+		return clk;
+	}
+
+	/* Register the clock for lookup */
+	rc = clk_register_clkdev(clk, name, NULL);
+	if (rc != 0) {
+		pr_err("%s: could not register lookup clk %s\n",
+			__func__, name);
+	}
+	return clk;
+}
+
+static void __init xgene_devclk_init(struct device_node *np)
+{
+	const char *clk_name = np->full_name;
+	struct clk *clk;
+	struct resource res;
+	int rc;
+	struct xgene_dev_parameters parameters;
+	int i;
+
+	/* Check if the entry is disabled */
+        if (!of_device_is_available(np))
+                return;
+
+	/* Parse the DTS register for resource */
+	parameters.csr_reg = NULL;
+	parameters.divider_reg = NULL;
+	for (i = 0; i < 2; i++) {
+		void *map_res;
+		rc = of_address_to_resource(np, i, &res);
+		if (rc != 0) {
+			if (i == 0) {
+				pr_err("no DTS register for %s\n", 
+					np->full_name);
+				return;
+			}
+			break;
+		}
+		map_res = of_iomap(np, i);
+		if (map_res == NULL) {
+			pr_err("Unable to map resource %d for %s\n",
+				i, np->full_name);
+			goto err;
+		}
+		if (strcmp(res.name, "div-reg") == 0)
+			parameters.divider_reg = map_res;
+		else /* if (strcmp(res->name, "csr-reg") == 0) */
+			parameters.csr_reg = map_res;
+	}
+	if (of_property_read_u32(np, "csr-offset", &parameters.reg_csr_offset))
+		parameters.reg_csr_offset = 0;
+	if (of_property_read_u32(np, "csr-mask", &parameters.reg_csr_mask))
+		parameters.reg_csr_mask = 0xF;
+	if (of_property_read_u32(np, "enable-offset",
+				&parameters.reg_clk_offset))
+		parameters.reg_clk_offset = 0x8;
+	if (of_property_read_u32(np, "enable-mask", &parameters.reg_clk_mask))
+		parameters.reg_clk_mask = 0xF;
+	if (of_property_read_u32(np, "divider-offset",
+				&parameters.reg_divider_offset))
+		parameters.reg_divider_offset = 0;
+	if (of_property_read_u32(np, "divider-width",
+				&parameters.reg_divider_width))
+		parameters.reg_divider_width = 0;
+	if (of_property_read_u32(np, "divider-shift",
+				&parameters.reg_divider_shift))
+		parameters.reg_divider_shift = 0;
+	of_property_read_string(np, "clock-output-names", &clk_name);
+
+	clk = xgene_register_clk(NULL, clk_name,
+		of_clk_get_parent_name(np, 0), &parameters, &clk_lock);
+	if (IS_ERR(clk))
+		goto err;
+	pr_debug("Add %s clock\n", clk_name);
+	rc = of_clk_add_provider(np, of_clk_src_simple_get, clk);
+	if (rc != 0)
+		pr_err("%s: could register provider clk %s\n", __func__,
+			np->full_name);
+
+	return;
+
+err:
+	if (parameters.csr_reg)
+		iounmap(parameters.csr_reg);
+	if (parameters.divider_reg)
+		iounmap(parameters.divider_reg);
+}
+
+CLK_OF_DECLARE(xgene_socpll_clock, "apm,xgene-socpll-clock", xgene_socpllclk_init);
+CLK_OF_DECLARE(xgene_pcppll_clock, "apm,xgene-pcppll-clock", xgene_pcppllclk_init);
+CLK_OF_DECLARE(xgene_dev_clock, "apm,xgene-device-clock", xgene_devclk_init);
-- 
cgit 


From 3eb15d84e355f4ea1acf0eaba11ca173de342107 Mon Sep 17 00:00:00 2001
From: Loc Ho <lho@apm.com>
Date: Wed, 26 Jun 2013 11:56:10 -0600
Subject: clk: arm64: Add DTS clock entry for APM X-Gene Storm SoC

clk: arm64: Add DTS clock entry for APM X-Gene Storm SoC with reference to
reference, PCP PLL, SoC PLL, and Ethernet clocks.

Signed-off-by: Loc Ho <lho@apm.com>
Signed-off-by: Kumar Sankaran <ksankaran@apm.com>
Signed-off-by: Vinayak Kale <vkale@apm.com>
Signed-off-by: Feng Kan <fkan@apm.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
 arch/arm64/boot/dts/apm-storm.dtsi | 75 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)

diff --git a/arch/arm64/boot/dts/apm-storm.dtsi b/arch/arm64/boot/dts/apm-storm.dtsi
index bfdc57834929..d37d7369e260 100644
--- a/arch/arm64/boot/dts/apm-storm.dtsi
+++ b/arch/arm64/boot/dts/apm-storm.dtsi
@@ -103,6 +103,81 @@
 		#size-cells = <2>;
 		ranges;
 
+		clocks {
+			#address-cells = <2>;
+			#size-cells = <2>;
+			ranges;
+			refclk: refclk {
+				compatible = "fixed-clock";
+				#clock-cells = <1>;
+				clock-frequency = <100000000>;
+				clock-output-names = "refclk";
+			};
+
+			pcppll: pcppll@17000100 {
+				compatible = "apm,xgene-pcppll-clock";
+				#clock-cells = <1>;
+				clocks = <&refclk 0>;
+				clock-names = "pcppll";
+				reg = <0x0 0x17000100 0x0 0x1000>;
+				clock-output-names = "pcppll";
+				type = <0>;
+			};
+
+			socpll: socpll@17000120 {
+				compatible = "apm,xgene-socpll-clock";
+				#clock-cells = <1>;
+				clocks = <&refclk 0>;
+				clock-names = "socpll";
+				reg = <0x0 0x17000120 0x0 0x1000>;
+				clock-output-names = "socpll";
+				type = <1>;
+			};
+
+			socplldiv2: socplldiv2  {
+				compatible = "fixed-factor-clock";
+				#clock-cells = <1>;
+				clocks = <&socpll 0>;
+				clock-names = "socplldiv2";
+				clock-mult = <1>;
+				clock-div = <2>;
+				clock-output-names = "socplldiv2";
+			};
+
+			qmlclk: qmlclk {
+				compatible = "apm,xgene-device-clock";
+				#clock-cells = <1>;
+				clocks = <&socplldiv2 0>;
+				clock-names = "qmlclk";
+				reg = <0x0 0x1703C000 0x0 0x1000>;
+				reg-names = "csr-reg";
+				clock-output-names = "qmlclk";
+			};
+
+			ethclk: ethclk {
+				compatible = "apm,xgene-device-clock";
+				#clock-cells = <1>;
+				clocks = <&socplldiv2 0>;
+				clock-names = "ethclk";
+				reg = <0x0 0x17000000 0x0 0x1000>;
+				reg-names = "div-reg";
+				divider-offset = <0x238>;
+				divider-width = <0x9>;
+				divider-shift = <0x0>;
+				clock-output-names = "ethclk";
+			};
+
+			eth8clk: eth8clk {
+				compatible = "apm,xgene-device-clock";
+				#clock-cells = <1>;
+				clocks = <&ethclk 0>;
+				clock-names = "eth8clk";
+				reg = <0x0 0x1702C000 0x0 0x1000>;
+				reg-names = "csr-reg";
+				clock-output-names = "eth8clk";
+			};
+		};
+
 		serial0: serial@1c020000 {
 			device_type = "serial";
 			compatible = "ns16550";
-- 
cgit 


From 938cc3a14ca0d921165c741fb10d8defba203dde Mon Sep 17 00:00:00 2001
From: Loc Ho <lho@apm.com>
Date: Wed, 26 Jun 2013 11:56:11 -0600
Subject: Documentation: Add documentation for APM X-Gene clock binding

Documentation: Add documentation for APM X-Gene clock binding with PLL and
device clocks.

Signed-off-by: Loc Ho <lho@apm.com>
Signed-off-by: Kumar Sankaran <ksankaran@apm.com>
Signed-off-by: Vinayak Kale <vkale@apm.com>
Signed-off-by: Feng Kan <fkan@apm.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
 Documentation/devicetree/bindings/clock/xgene.txt | 111 ++++++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/xgene.txt

diff --git a/Documentation/devicetree/bindings/clock/xgene.txt b/Documentation/devicetree/bindings/clock/xgene.txt
new file mode 100644
index 000000000000..1c4ef773feea
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/xgene.txt
@@ -0,0 +1,111 @@
+Device Tree Clock bindings for APM X-Gene
+
+This binding uses the common clock binding[1].
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+Required properties:
+- compatible : shall be one of the following:
+	"apm,xgene-socpll-clock" - for a X-Gene SoC PLL clock
+	"apm,xgene-pcppll-clock" - for a X-Gene PCP PLL clock
+	"apm,xgene-device-clock" - for a X-Gene device clock
+
+Required properties for SoC or PCP PLL clocks:
+- reg : shall be the physical PLL register address for the pll clock.
+- clocks : shall be the input parent clock phandle for the clock. This should
+	be the reference clock.
+- #clock-cells : shall be set to 1.
+- clock-output-names : shall be the name of the PLL referenced by derive
+  clock.
+Optional properties for PLL clocks:
+- clock-names : shall be the name of the PLL. If missing, use the device name.
+
+Required properties for device clocks:
+- reg : shall be a list of address and length pairs describing the CSR
+         reset and/or the divider. Either may be omitted, but at least
+         one must be present.
+ - reg-names : shall be a string list describing the reg resource. This
+               may include "csr-reg" and/or "div-reg". If this property
+               is not present, the reg property is assumed to describe
+               only "csr-reg".
+- clocks : shall be the input parent clock phandle for the clock.
+- #clock-cells : shall be set to 1.
+- clock-output-names : shall be the name of the device referenced.
+Optional properties for device clocks:
+- clock-names : shall be the name of the device clock. If missing, use the
+                device name.
+- csr-offset : Offset to the CSR reset register from the reset address base.
+               Default is 0.
+- csr-mask : CSR reset mask bit. Default is 0xF.
+- enable-offset : Offset to the enable register from the reset address base.
+                  Default is 0x8.
+- enable-mask : CSR enable mask bit. Default is 0xF.
+- divider-offset : Offset to the divider CSR register from the divider base.
+                   Default is 0x0.
+- divider-width : Width of the divider register. Default is 0.
+- divider-shift : Bit shift of the divider register. Default is 0.
+
+For example:
+
+	pcppll: pcppll@17000100 {
+		compatible = "apm,xgene-pcppll-clock";
+		#clock-cells = <1>;
+		clocks = <&refclk 0>;
+		clock-names = "pcppll";
+		reg = <0x0 0x17000100 0x0 0x1000>;
+		clock-output-names = "pcppll";
+		type = <0>;
+	};
+
+	socpll: socpll@17000120 {
+		compatible = "apm,xgene-socpll-clock";
+		#clock-cells = <1>;
+		clocks = <&refclk 0>;
+		clock-names = "socpll";
+		reg = <0x0 0x17000120 0x0 0x1000>;
+		clock-output-names = "socpll";
+		type = <1>;
+	};
+
+	qmlclk: qmlclk {
+		compatible = "apm,xgene-device-clock";
+		#clock-cells = <1>;
+		clocks = <&socplldiv2 0>;
+		clock-names = "qmlclk";
+		reg = <0x0 0x1703C000 0x0 0x1000>;
+		reg-name = "csr-reg";
+		clock-output-names = "qmlclk";
+	};
+
+	ethclk: ethclk {
+		compatible = "apm,xgene-device-clock";
+		#clock-cells = <1>;
+		clocks = <&socplldiv2 0>;
+		clock-names = "ethclk";
+		reg = <0x0 0x17000000 0x0 0x1000>;
+		reg-names = "div-reg";
+		divider-offset = <0x238>;
+		divider-width = <0x9>;
+		divider-shift = <0x0>;
+		clock-output-names = "ethclk";
+	};
+
+	apbclk: apbclk {
+		compatible = "apm,xgene-device-clock";
+		#clock-cells = <1>;
+		clocks = <&ahbclk 0>;
+		clock-names = "apbclk";
+		reg = <0x0 0x1F2AC000 0x0 0x1000
+			0x0 0x1F2AC000 0x0 0x1000>;
+		reg-names = "csr-reg", "div-reg";
+		csr-offset = <0x0>;
+		csr-mask = <0x200>;
+		enable-offset = <0x8>;
+		enable-mask = <0x200>;
+		divider-offset = <0x10>;
+		divider-width = <0x2>;
+		divider-shift = <0x0>;
+		flags = <0x8>;
+		clock-output-names = "apbclk";
+	};
+
-- 
cgit 


From 54bf93c49a9a7a395df3a6442c5b6bf428c945cb Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Mon, 7 Oct 2013 19:53:13 +0200
Subject: clk: nomadik: fix missing __init on nomadik_src_init

nomadik_src_init references __initconst sections but lacks an __init
itself. Add __init to fix the section mismatch.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 drivers/clk/clk-nomadik.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/clk-nomadik.c b/drivers/clk/clk-nomadik.c
index ce2d6b32e3f5..6a934a5296bd 100644
--- a/drivers/clk/clk-nomadik.c
+++ b/drivers/clk/clk-nomadik.c
@@ -86,7 +86,7 @@ static const struct of_device_id nomadik_src_match[] __initconst = {
 	{ /* sentinel */ }
 };
 
-static void nomadik_src_init(void)
+static void __init nomadik_src_init(void)
 {
 	struct device_node *np;
 	u32 val;
-- 
cgit 


From fb30a1819a4315091cb731403ebf74ff1a490f43 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Fri, 4 Oct 2013 16:39:22 +0100
Subject: spi/tegra20-slink: Remove unused is_single_xfer check

Currently transfer_one_message() checks to see if the message consists of
a single spi_transfer and tells _start_transfer_one() but it just ignores
this. Don't bother.

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
---
 drivers/spi/spi-tegra20-slink.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c
index c70353672a23..36d4e663db9b 100644
--- a/drivers/spi/spi-tegra20-slink.c
+++ b/drivers/spi/spi-tegra20-slink.c
@@ -707,8 +707,7 @@ static void tegra_slink_deinit_dma_param(struct tegra_slink_data *tspi,
 }
 
 static int tegra_slink_start_transfer_one(struct spi_device *spi,
-		struct spi_transfer *t, bool is_first_of_msg,
-		bool is_single_xfer)
+		struct spi_transfer *t, bool is_first_of_msg)
 {
 	struct tegra_slink_data *tspi = spi_master_get_devdata(spi->master);
 	u32 speed;
@@ -828,7 +827,6 @@ static int tegra_slink_transfer_one_message(struct spi_master *master,
 			struct spi_message *msg)
 {
 	bool is_first_msg = true;
-	int single_xfer;
 	struct tegra_slink_data *tspi = spi_master_get_devdata(master);
 	struct spi_transfer *xfer;
 	struct spi_device *spi = msg->spi;
@@ -837,11 +835,9 @@ static int tegra_slink_transfer_one_message(struct spi_master *master,
 	msg->status = 0;
 	msg->actual_length = 0;
 
-	single_xfer = list_is_singular(&msg->transfers);
 	list_for_each_entry(xfer, &msg->transfers, transfer_list) {
 		INIT_COMPLETION(tspi->xfer_completion);
-		ret = tegra_slink_start_transfer_one(spi, xfer,
-					is_first_msg, single_xfer);
+		ret = tegra_slink_start_transfer_one(spi, xfer, is_first_msg);
 		if (ret < 0) {
 			dev_err(tspi->dev,
 				"spi can not start transfer, err %d\n", ret);
-- 
cgit 


From 56ec1978ff07380bbdc0a942c8779ec9fd9e02ee Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 7 Oct 2013 19:33:53 +0100
Subject: spi: Provide trace points for message processing

Provide tracepoints for the lifecycle of a message from submission to
completion and for the active time for masters to help with performance
analysis of SPI I/O.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi.c          | 16 +++++++-
 include/trace/events/spi.h | 94 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 109 insertions(+), 1 deletion(-)
 create mode 100644 include/trace/events/spi.h

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 9e039c60c068..8bef0c9a7233 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -39,6 +39,9 @@
 #include <linux/ioport.h>
 #include <linux/acpi.h>
 
+#define CREATE_TRACE_POINTS
+#include <trace/events/spi.h>
+
 static void spidev_release(struct device *dev)
 {
 	struct spi_device	*spi = to_spi_device(dev);
@@ -557,6 +560,7 @@ static void spi_pump_messages(struct kthread_work *work)
 			pm_runtime_mark_last_busy(master->dev.parent);
 			pm_runtime_put_autosuspend(master->dev.parent);
 		}
+		trace_spi_master_idle(master);
 		return;
 	}
 
@@ -585,6 +589,9 @@ static void spi_pump_messages(struct kthread_work *work)
 		}
 	}
 
+	if (!was_busy)
+		trace_spi_master_busy(master);
+
 	if (!was_busy && master->prepare_transfer_hardware) {
 		ret = master->prepare_transfer_hardware(master);
 		if (ret) {
@@ -597,6 +604,8 @@ static void spi_pump_messages(struct kthread_work *work)
 		}
 	}
 
+	trace_spi_message_start(master->cur_msg);
+
 	ret = master->transfer_one_message(master, master->cur_msg);
 	if (ret) {
 		dev_err(&master->dev,
@@ -689,6 +698,8 @@ void spi_finalize_current_message(struct spi_master *master)
 	mesg->state = NULL;
 	if (mesg->complete)
 		mesg->complete(mesg->context);
+
+	trace_spi_message_done(mesg);
 }
 EXPORT_SYMBOL_GPL(spi_finalize_current_message);
 
@@ -1421,6 +1432,10 @@ static int __spi_async(struct spi_device *spi, struct spi_message *message)
 	struct spi_master *master = spi->master;
 	struct spi_transfer *xfer;
 
+	message->spi = spi;
+
+	trace_spi_message_submit(message);
+
 	if (list_empty(&message->transfers))
 		return -EINVAL;
 	if (!message->complete)
@@ -1520,7 +1535,6 @@ static int __spi_async(struct spi_device *spi, struct spi_message *message)
 		}
 	}
 
-	message->spi = spi;
 	message->status = -EINPROGRESS;
 	return master->transfer(spi, message);
 }
diff --git a/include/trace/events/spi.h b/include/trace/events/spi.h
new file mode 100644
index 000000000000..a7b09072ce56
--- /dev/null
+++ b/include/trace/events/spi.h
@@ -0,0 +1,94 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM spi
+
+#if !defined(_TRACE_SPI_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_SPI_H
+
+#include <linux/ktime.h>
+#include <linux/tracepoint.h>
+
+DECLARE_EVENT_CLASS(spi_master,
+
+	TP_PROTO(struct spi_master *master),
+
+	TP_ARGS(master),
+
+	TP_STRUCT__entry(
+		__field(        int,           bus_num             )
+	),
+
+	TP_fast_assign(
+		__entry->bus_num = master->bus_num;
+	),
+
+	TP_printk("spi%d", (int)__entry->bus_num)
+
+);
+
+DEFINE_EVENT(spi_master, spi_master_idle,
+
+	TP_PROTO(struct spi_master *master),
+
+	TP_ARGS(master)
+
+);
+
+DEFINE_EVENT(spi_master, spi_master_busy,
+
+	TP_PROTO(struct spi_master *master),
+
+	TP_ARGS(master)
+
+);
+
+DECLARE_EVENT_CLASS(spi_message,
+
+	TP_PROTO(struct spi_message *msg),
+
+	TP_ARGS(msg),
+
+	TP_STRUCT__entry(
+		__field(        int,            bus_num         )
+		__field(        int,            chip_select     )
+		__field(        struct spi_message *,   msg     )
+	),
+
+	TP_fast_assign(
+		__entry->bus_num = msg->spi->master->bus_num;
+		__entry->chip_select = msg->spi->chip_select;
+		__entry->msg = msg;
+	),
+
+        TP_printk("spi%d.%d %p", (int)__entry->bus_num,
+		  (int)__entry->chip_select,
+		  (struct spi_message *)__entry->msg)
+);
+
+DEFINE_EVENT(spi_message, spi_message_submit,
+
+	TP_PROTO(struct spi_message *msg),
+
+	TP_ARGS(msg)
+
+);
+
+DEFINE_EVENT(spi_message, spi_message_start,
+
+	TP_PROTO(struct spi_message *msg),
+
+	TP_ARGS(msg)
+
+);
+
+DEFINE_EVENT(spi_message, spi_message_done,
+
+	TP_PROTO(struct spi_message *msg),
+
+	TP_ARGS(msg)
+
+);
+
+#endif /* _TRACE_POWER_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
-- 
cgit 


From ebd805cc14bec607e74795b7933570f240508cb4 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Fri, 27 Sep 2013 19:56:31 +0100
Subject: spi/s3c64xx: Factor transfer start out of enable/disable_cs()

The hardware level /CS handling is tied to the start of the data path so
is rolled into the same function as we use to manipulate GPIO /CS. In
order to support factoring out the /CS handling into the core separate the
two and explicitly start transfers separately to the /CS handling.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-s3c64xx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index e6312322f66a..8e732a1b8a9b 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -927,6 +927,9 @@ static int s3c64xx_spi_transfer_one_message(struct spi_master *master,
 		/* Start the signals */
 		writel(0, sdd->regs + S3C64XX_SPI_SLAVE_SEL);
 
+		/* Start the signals */
+		writel(0, sdd->regs + S3C64XX_SPI_SLAVE_SEL);
+
 		spin_unlock_irqrestore(&sdd->lock, flags);
 
 		status = wait_for_xfer(sdd, xfer, use_dma);
-- 
cgit 


From b6bda4e0d23815cb711c16085e03cb23c6d49f21 Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Mon, 7 Oct 2013 11:11:42 -0600
Subject: ARM: tegra: fix ARCH_TEGRA_114_SOC select sort order

All the other select statements are alphabetically sorted. Fix the one
remaining escape.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/mach-tegra/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index 67a76f2dfb9f..f2e026af1ae4 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -53,9 +53,9 @@ config ARCH_TEGRA_3x_SOC
 
 config ARCH_TEGRA_114_SOC
 	bool "Enable support for Tegra114 family"
-	select HAVE_ARM_ARCH_TIMER
 	select ARM_ERRATA_798181
 	select ARM_L1_CACHE_SHIFT_6
+	select HAVE_ARM_ARCH_TIMER
 	select PINCTRL_TEGRA114
 	help
 	  Support for NVIDIA Tegra T114 processor family, based on the
-- 
cgit 


From 99bda7b901e36ada545656ba40acdcdc091b83d2 Mon Sep 17 00:00:00 2001
From: Wei Ni <wni@nvidia.com>
Date: Mon, 7 Oct 2013 17:28:28 +0800
Subject: ARM: tegra: add DT entry for nct1008 to Dalmore

Enable thermal sensor nct1008 for Tegra114 dalmore.

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/boot/dts/tegra114-dalmore.dts | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/tegra114-dalmore.dts b/arch/arm/boot/dts/tegra114-dalmore.dts
index 871aff5e2b87..cb5ec23b03a7 100644
--- a/arch/arm/boot/dts/tegra114-dalmore.dts
+++ b/arch/arm/boot/dts/tegra114-dalmore.dts
@@ -739,6 +739,14 @@
 			realtek,ldo1-en-gpios =
 				<&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>;
 		};
+
+		temperature-sensor@4c {
+			compatible = "onnn,nct1008";
+			reg = <0x4c>;
+			vcc-supply = <&palmas_ldo6_reg>;
+			interrupt-parent = <&gpio>;
+			interrupts = <TEGRA_GPIO(O, 4) IRQ_TYPE_LEVEL_LOW>;
+		};
 	};
 
 	i2c@7000d000 {
@@ -948,7 +956,7 @@
 						regulator-max-microvolt = <1800000>;
 					};
 
-					ldo6 {
+					palmas_ldo6_reg: ldo6 {
 						regulator-name = "vdd-sensor-2v85";
 						regulator-min-microvolt = <2850000>;
 						regulator-max-microvolt = <2850000>;
-- 
cgit 


From 7c7de6b03a2ad8a6f429e5a01c94cdf3289d47d1 Mon Sep 17 00:00:00 2001
From: Wei Ni <wni@nvidia.com>
Date: Mon, 7 Oct 2013 17:28:29 +0800
Subject: ARM: tegra: add vcc supply for nct1008 to Cardhu

Add vcc-supply property in the nct1008 node, and set it
as sys_3v3_reg.
change the name of this node to temp-sensor.

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/boot/dts/tegra30-cardhu.dtsi | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/tegra30-cardhu.dtsi b/arch/arm/boot/dts/tegra30-cardhu.dtsi
index e19dbf238e5c..5ea7dfa4d9fa 100644
--- a/arch/arm/boot/dts/tegra30-cardhu.dtsi
+++ b/arch/arm/boot/dts/tegra30-cardhu.dtsi
@@ -294,9 +294,10 @@
 			};
 		};
 
-		nct1008 {
+		temperature-sensor@4c {
 			compatible = "onnn,nct1008";
 			reg = <0x4c>;
+			vcc-supply = <&sys_3v3_reg>;
 			interrupt-parent = <&gpio>;
 			interrupts = <TEGRA_GPIO(CC, 2) IRQ_TYPE_LEVEL_LOW>;
 		};
-- 
cgit 


From 5cde282938915f36a2e6769b51c24c4159654859 Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Sat, 5 Oct 2013 19:26:05 -0700
Subject: net: Separate the close_list and the unreg_list v2

Separate the unreg_list and the close_list in dev_close_many preventing
dev_close_many from permuting the unreg_list.  The permutations of the
unreg_list have resulted in cases where the loopback device is accessed
it has been freed in code such as dst_ifdown.  Resulting in subtle memory
corruption.

This is the second bug from sharing the storage between the close_list
and the unreg_list.  The issues that crop up with sharing are
apparently too subtle to show up in normal testing or usage, so let's
forget about being clever and use two separate lists.

v2: Make all callers pass in a close_list to dev_close_many

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdevice.h |  1 +
 net/core/dev.c            | 25 ++++++++++++++-----------
 net/sched/sch_generic.c   |  6 +++---
 3 files changed, 18 insertions(+), 14 deletions(-)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index f5cd464271bf..6d77e0f3cc10 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1143,6 +1143,7 @@ struct net_device {
 	struct list_head	dev_list;
 	struct list_head	napi_list;
 	struct list_head	unreg_list;
+	struct list_head	close_list;
 
 	/* directly linked devices, like slaves for bonding */
 	struct {
diff --git a/net/core/dev.c b/net/core/dev.c
index c25db20a4246..fa0b2b06c1a6 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1307,7 +1307,7 @@ static int __dev_close_many(struct list_head *head)
 	ASSERT_RTNL();
 	might_sleep();
 
-	list_for_each_entry(dev, head, unreg_list) {
+	list_for_each_entry(dev, head, close_list) {
 		call_netdevice_notifiers(NETDEV_GOING_DOWN, dev);
 
 		clear_bit(__LINK_STATE_START, &dev->state);
@@ -1323,7 +1323,7 @@ static int __dev_close_many(struct list_head *head)
 
 	dev_deactivate_many(head);
 
-	list_for_each_entry(dev, head, unreg_list) {
+	list_for_each_entry(dev, head, close_list) {
 		const struct net_device_ops *ops = dev->netdev_ops;
 
 		/*
@@ -1351,7 +1351,7 @@ static int __dev_close(struct net_device *dev)
 	/* Temporarily disable netpoll until the interface is down */
 	netpoll_rx_disable(dev);
 
-	list_add(&dev->unreg_list, &single);
+	list_add(&dev->close_list, &single);
 	retval = __dev_close_many(&single);
 	list_del(&single);
 
@@ -1362,21 +1362,20 @@ static int __dev_close(struct net_device *dev)
 static int dev_close_many(struct list_head *head)
 {
 	struct net_device *dev, *tmp;
-	LIST_HEAD(tmp_list);
 
-	list_for_each_entry_safe(dev, tmp, head, unreg_list)
+	/* Remove the devices that don't need to be closed */
+	list_for_each_entry_safe(dev, tmp, head, close_list)
 		if (!(dev->flags & IFF_UP))
-			list_move(&dev->unreg_list, &tmp_list);
+			list_del_init(&dev->close_list);
 
 	__dev_close_many(head);
 
-	list_for_each_entry(dev, head, unreg_list) {
+	list_for_each_entry_safe(dev, tmp, head, close_list) {
 		rtmsg_ifinfo(RTM_NEWLINK, dev, IFF_UP|IFF_RUNNING);
 		call_netdevice_notifiers(NETDEV_DOWN, dev);
+		list_del_init(&dev->close_list);
 	}
 
-	/* rollback_registered_many needs the complete original list */
-	list_splice(&tmp_list, head);
 	return 0;
 }
 
@@ -1397,7 +1396,7 @@ int dev_close(struct net_device *dev)
 		/* Block netpoll rx while the interface is going down */
 		netpoll_rx_disable(dev);
 
-		list_add(&dev->unreg_list, &single);
+		list_add(&dev->close_list, &single);
 		dev_close_many(&single);
 		list_del(&single);
 
@@ -5439,6 +5438,7 @@ static void net_set_todo(struct net_device *dev)
 static void rollback_registered_many(struct list_head *head)
 {
 	struct net_device *dev, *tmp;
+	LIST_HEAD(close_head);
 
 	BUG_ON(dev_boot_phase);
 	ASSERT_RTNL();
@@ -5461,7 +5461,9 @@ static void rollback_registered_many(struct list_head *head)
 	}
 
 	/* If device is running, close it first. */
-	dev_close_many(head);
+	list_for_each_entry(dev, head, unreg_list)
+		list_add_tail(&dev->close_list, &close_head);
+	dev_close_many(&close_head);
 
 	list_for_each_entry(dev, head, unreg_list) {
 		/* And unlink it from device chain. */
@@ -6257,6 +6259,7 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
 
 	INIT_LIST_HEAD(&dev->napi_list);
 	INIT_LIST_HEAD(&dev->unreg_list);
+	INIT_LIST_HEAD(&dev->close_list);
 	INIT_LIST_HEAD(&dev->link_watch_list);
 	INIT_LIST_HEAD(&dev->adj_list.upper);
 	INIT_LIST_HEAD(&dev->adj_list.lower);
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index e7121d29c4bd..7fc899a943a8 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -829,7 +829,7 @@ void dev_deactivate_many(struct list_head *head)
 	struct net_device *dev;
 	bool sync_needed = false;
 
-	list_for_each_entry(dev, head, unreg_list) {
+	list_for_each_entry(dev, head, close_list) {
 		netdev_for_each_tx_queue(dev, dev_deactivate_queue,
 					 &noop_qdisc);
 		if (dev_ingress_queue(dev))
@@ -848,7 +848,7 @@ void dev_deactivate_many(struct list_head *head)
 		synchronize_net();
 
 	/* Wait for outstanding qdisc_run calls. */
-	list_for_each_entry(dev, head, unreg_list)
+	list_for_each_entry(dev, head, close_list)
 		while (some_qdisc_is_busy(dev))
 			yield();
 }
@@ -857,7 +857,7 @@ void dev_deactivate(struct net_device *dev)
 {
 	LIST_HEAD(single);
 
-	list_add(&dev->unreg_list, &single);
+	list_add(&dev->close_list, &single);
 	dev_deactivate_many(&single);
 	list_del(&single);
 }
-- 
cgit 


From d96caf61ace778b56ab189caaf2b2294101878a9 Mon Sep 17 00:00:00 2001
From: Matthew Whitehead <tedheadster@gmail.com>
Date: Fri, 4 Oct 2013 17:03:08 -0400
Subject: net: fujitsu: Remove ISA depdendency from Kconfig

There no longer are ISA drivers in the fujitsu directory, so remove the
dependency from the Kconfig.

Signed-off-by: Matthew Whitehead <tedheadster@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/fujitsu/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/fujitsu/Kconfig b/drivers/net/ethernet/fujitsu/Kconfig
index 6231bc02b964..1085257385d2 100644
--- a/drivers/net/ethernet/fujitsu/Kconfig
+++ b/drivers/net/ethernet/fujitsu/Kconfig
@@ -5,7 +5,7 @@
 config NET_VENDOR_FUJITSU
 	bool "Fujitsu devices"
 	default y
-	depends on ISA || PCMCIA
+	depends on PCMCIA
 	---help---
 	  If you have a network (Ethernet) card belonging to this class, say Y
 	  and read the Ethernet-HOWTO, available from
-- 
cgit 


From 9714481e677562cc81d45c45586286578b9e8c08 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sat, 5 Oct 2013 06:22:30 +0200
Subject: net: hamradio/scc: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/hamradio/scc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/hamradio/scc.c b/drivers/net/hamradio/scc.c
index bc1d52170389..4bc6ee8e7987 100644
--- a/drivers/net/hamradio/scc.c
+++ b/drivers/net/hamradio/scc.c
@@ -1734,7 +1734,7 @@ static int scc_net_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 			if (!Ivec[hwcfg.irq].used && hwcfg.irq)
 			{
 				if (request_irq(hwcfg.irq, scc_isr,
-						IRQF_DISABLED, "AX.25 SCC",
+						0, "AX.25 SCC",
 						(void *)(long) hwcfg.irq))
 					printk(KERN_WARNING "z8530drv: warning, cannot get IRQ %d\n", hwcfg.irq);
 				else
-- 
cgit 


From bfdd56b27594160f93d09a79d822e17a904c6247 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sat, 5 Oct 2013 06:25:46 +0200
Subject: net: hamradio/yam: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/hamradio/yam.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c
index 0721e72f9299..ff31ff0e0c43 100644
--- a/drivers/net/hamradio/yam.c
+++ b/drivers/net/hamradio/yam.c
@@ -888,7 +888,7 @@ static int yam_open(struct net_device *dev)
 		goto out_release_base;
 	}
 	outb(0, IER(dev->base_addr));
-	if (request_irq(dev->irq, yam_interrupt, IRQF_DISABLED | IRQF_SHARED, dev->name, dev)) {
+	if (request_irq(dev->irq, yam_interrupt, IRQF_SHARED, dev->name, dev)) {
 		printk(KERN_ERR "%s: irq %d busy\n", dev->name, dev->irq);
 		ret = -EBUSY;
 		goto out_release_base;
-- 
cgit 


From 2c20ae6862ba137bf79b918de6b739a60260e37c Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sat, 5 Oct 2013 06:39:24 +0200
Subject: irda: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/irda/bfin_sir.c | 4 ++--
 drivers/net/irda/donauboe.c | 4 ++--
 drivers/net/irda/sh_irda.c  | 2 +-
 drivers/net/irda/sh_sir.c   | 2 +-
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/net/irda/bfin_sir.c b/drivers/net/irda/bfin_sir.c
index c74f384c87d5..303c4bd26e17 100644
--- a/drivers/net/irda/bfin_sir.c
+++ b/drivers/net/irda/bfin_sir.c
@@ -411,12 +411,12 @@ static int bfin_sir_startup(struct bfin_sir_port *port, struct net_device *dev)
 
 #else
 
-	if (request_irq(port->irq, bfin_sir_rx_int, IRQF_DISABLED, "BFIN_SIR_RX", dev)) {
+	if (request_irq(port->irq, bfin_sir_rx_int, 0, "BFIN_SIR_RX", dev)) {
 		dev_warn(&dev->dev, "Unable to attach SIR RX interrupt\n");
 		return -EBUSY;
 	}
 
-	if (request_irq(port->irq+1, bfin_sir_tx_int, IRQF_DISABLED, "BFIN_SIR_TX", dev)) {
+	if (request_irq(port->irq+1, bfin_sir_tx_int, 0, "BFIN_SIR_TX", dev)) {
 		dev_warn(&dev->dev, "Unable to attach SIR TX interrupt\n");
 		free_irq(port->irq, dev);
 		return -EBUSY;
diff --git a/drivers/net/irda/donauboe.c b/drivers/net/irda/donauboe.c
index 31bcb98ef356..768dfe9a9315 100644
--- a/drivers/net/irda/donauboe.c
+++ b/drivers/net/irda/donauboe.c
@@ -1352,7 +1352,7 @@ toshoboe_net_open (struct net_device *dev)
     return 0;
 
   rc = request_irq (self->io.irq, toshoboe_interrupt,
-                    IRQF_SHARED | IRQF_DISABLED, dev->name, self);
+                    IRQF_SHARED, dev->name, self);
   if (rc)
   	return rc;
 
@@ -1559,7 +1559,7 @@ toshoboe_open (struct pci_dev *pci_dev, const struct pci_device_id *pdid)
   self->io.fir_base = self->base;
   self->io.fir_ext = OBOE_IO_EXTENT;
   self->io.irq = pci_dev->irq;
-  self->io.irqflags = IRQF_SHARED | IRQF_DISABLED;
+  self->io.irqflags = IRQF_SHARED;
 
   self->speed = self->io.speed = 9600;
   self->async = 0;
diff --git a/drivers/net/irda/sh_irda.c b/drivers/net/irda/sh_irda.c
index 4455425f1c77..ff45cd0d60e8 100644
--- a/drivers/net/irda/sh_irda.c
+++ b/drivers/net/irda/sh_irda.c
@@ -804,7 +804,7 @@ static int sh_irda_probe(struct platform_device *pdev)
 		goto err_mem_4;
 
 	platform_set_drvdata(pdev, ndev);
-	err = request_irq(irq, sh_irda_irq, IRQF_DISABLED, "sh_irda", self);
+	err = request_irq(irq, sh_irda_irq, 0, "sh_irda", self);
 	if (err) {
 		dev_warn(&pdev->dev, "Unable to attach sh_irda interrupt\n");
 		goto err_mem_4;
diff --git a/drivers/net/irda/sh_sir.c b/drivers/net/irda/sh_sir.c
index 89682b49900f..8d9ae5a086d5 100644
--- a/drivers/net/irda/sh_sir.c
+++ b/drivers/net/irda/sh_sir.c
@@ -761,7 +761,7 @@ static int sh_sir_probe(struct platform_device *pdev)
 		goto err_mem_4;
 
 	platform_set_drvdata(pdev, ndev);
-	err = request_irq(irq, sh_sir_irq, IRQF_DISABLED, "sh_sir", self);
+	err = request_irq(irq, sh_sir_irq, 0, "sh_sir", self);
 	if (err) {
 		dev_warn(&pdev->dev, "Unable to attach sh_sir interrupt\n");
 		goto err_mem_4;
-- 
cgit 


From 0ca45208b0400812965d810b1917839dc8844bbe Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sat, 5 Oct 2013 06:45:30 +0200
Subject: net: wan: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/wan/hostess_sv11.c | 2 +-
 drivers/net/wan/sealevel.c     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wan/hostess_sv11.c b/drivers/net/wan/hostess_sv11.c
index 3d80e4267de8..3d741663fd67 100644
--- a/drivers/net/wan/hostess_sv11.c
+++ b/drivers/net/wan/hostess_sv11.c
@@ -220,7 +220,7 @@ static struct z8530_dev *sv11_init(int iobase, int irq)
 	/* We want a fast IRQ for this device. Actually we'd like an even faster
 	   IRQ ;) - This is one driver RtLinux is made for */
 
-	if (request_irq(irq, z8530_interrupt, IRQF_DISABLED,
+	if (request_irq(irq, z8530_interrupt, 0,
 			"Hostess SV11", sv) < 0) {
 		pr_warn("IRQ %d already in use\n", irq);
 		goto err_irq;
diff --git a/drivers/net/wan/sealevel.c b/drivers/net/wan/sealevel.c
index 4f7748478984..27860b4f5908 100644
--- a/drivers/net/wan/sealevel.c
+++ b/drivers/net/wan/sealevel.c
@@ -266,7 +266,7 @@ static __init struct slvl_board *slvl_init(int iobase, int irq,
 	/* We want a fast IRQ for this device. Actually we'd like an even faster
 	   IRQ ;) - This is one driver RtLinux is made for */
 
-	if (request_irq(irq, z8530_interrupt, IRQF_DISABLED,
+	if (request_irq(irq, z8530_interrupt, 0,
 			"SeaLevel", dev) < 0) {
 		pr_warn("IRQ %d already in use\n", irq);
 		goto err_request_irq;
-- 
cgit 


From 0f49ba5599048aae2fb3479a1814736e969cf38c Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 7 Oct 2013 14:51:02 -0600
Subject: PCI: convert bus code to use bus_groups

The bus_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the PCI bus code to use the
correct field.

Cc: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/pci-driver.c |  2 +-
 drivers/pci/pci-sysfs.c  | 16 +++++++++++++---
 drivers/pci/pci.h        |  2 +-
 3 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 98f7b9b89507..e00f74143115 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -1317,7 +1317,7 @@ struct bus_type pci_bus_type = {
 	.remove		= pci_device_remove,
 	.shutdown	= pci_device_shutdown,
 	.dev_attrs	= pci_dev_attrs,
-	.bus_attrs	= pci_bus_attrs,
+	.bus_groups	= pci_bus_groups,
 	.drv_attrs	= pci_drv_attrs,
 	.pm		= PCI_PM_OPS_PTR,
 };
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 7128cfdd64aa..d8eb880bd1fc 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -302,10 +302,20 @@ static ssize_t bus_rescan_store(struct bus_type *bus, const char *buf,
 	}
 	return count;
 }
+static BUS_ATTR(rescan, (S_IWUSR|S_IWGRP), NULL, bus_rescan_store);
 
-struct bus_attribute pci_bus_attrs[] = {
-	__ATTR(rescan, (S_IWUSR|S_IWGRP), NULL, bus_rescan_store),
-	__ATTR_NULL
+struct attribute *pci_bus_attrs[] = {
+	&bus_attr_rescan.attr,
+	NULL,
+};
+
+static const struct attribute_group pci_bus_group = {
+	.attrs = pci_bus_attrs,
+};
+
+const struct attribute_group *pci_bus_groups[] = {
+	&pci_bus_group,
+	NULL,
 };
 
 static ssize_t
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 8a00c063d7bc..607be58dd728 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -156,7 +156,7 @@ static inline int pci_no_d1d2(struct pci_dev *dev)
 extern struct device_attribute pci_dev_attrs[];
 extern const struct attribute_group *pcibus_groups[];
 extern struct device_type pci_dev_type;
-extern struct bus_attribute pci_bus_attrs[];
+extern const struct attribute_group *pci_bus_groups[];
 
 
 /**
-- 
cgit 


From 2229c1fbc5bd3bd7eb376285de159d086e79d58a Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 7 Oct 2013 14:51:20 -0600
Subject: PCI: convert bus code to use drv_groups

The drv_attrs field of struct bus_type is going away soon, drv_groups
should be used instead.  This converts the PCI bus code to use the
correct field.

Cc: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pci/pci-driver.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index e00f74143115..38f3c0140dfb 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -135,6 +135,7 @@ store_new_id(struct device_driver *driver, const char *buf, size_t count)
 		return retval;
 	return count;
 }
+static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
 
 /**
  * store_remove_id - remove a PCI device ID from this driver
@@ -180,12 +181,14 @@ store_remove_id(struct device_driver *driver, const char *buf, size_t count)
 		return retval;
 	return count;
 }
+static DRIVER_ATTR(remove_id, S_IWUSR, NULL, store_remove_id);
 
-static struct driver_attribute pci_drv_attrs[] = {
-	__ATTR(new_id, S_IWUSR, NULL, store_new_id),
-	__ATTR(remove_id, S_IWUSR, NULL, store_remove_id),
-	__ATTR_NULL,
+static struct attribute *pci_drv_attrs[] = {
+	&driver_attr_new_id.attr,
+	&driver_attr_remove_id.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(pci_drv);
 
 /**
  * pci_match_id - See if a pci device matches a given pci_id table
@@ -1318,7 +1321,7 @@ struct bus_type pci_bus_type = {
 	.shutdown	= pci_device_shutdown,
 	.dev_attrs	= pci_dev_attrs,
 	.bus_groups	= pci_bus_groups,
-	.drv_attrs	= pci_drv_attrs,
+	.drv_groups	= pci_drv_groups,
 	.pm		= PCI_PM_OPS_PTR,
 };
 
-- 
cgit 


From 5136b2da770d53f026ab091f0423729ebf37a6b5 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sun, 6 Oct 2013 23:55:40 -0700
Subject: PCI: convert bus code to use dev_groups

The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the PCI bus code to use the
correct field.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/pci-driver.c |  2 +-
 drivers/pci/pci-sysfs.c  | 73 ++++++++++++++++++++++++++++++------------------
 drivers/pci/pci.h        |  2 +-
 3 files changed, 48 insertions(+), 29 deletions(-)

diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 38f3c0140dfb..9f85960a62ed 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -1319,7 +1319,7 @@ struct bus_type pci_bus_type = {
 	.probe		= pci_device_probe,
 	.remove		= pci_device_remove,
 	.shutdown	= pci_device_shutdown,
-	.dev_attrs	= pci_dev_attrs,
+	.dev_groups	= pci_dev_groups,
 	.bus_groups	= pci_bus_groups,
 	.drv_groups	= pci_drv_groups,
 	.pm		= PCI_PM_OPS_PTR,
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index d8eb880bd1fc..618c06094295 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -42,7 +42,8 @@ field##_show(struct device *dev, struct device_attribute *attr, char *buf)				\
 									\
 	pdev = to_pci_dev (dev);					\
 	return sprintf (buf, format_string, pdev->field);		\
-}
+}									\
+static DEVICE_ATTR_RO(field)
 
 pci_config_attr(vendor, "0x%04x\n");
 pci_config_attr(device, "0x%04x\n");
@@ -73,6 +74,7 @@ static ssize_t broken_parity_status_store(struct device *dev,
 
 	return count;
 }
+static DEVICE_ATTR_RW(broken_parity_status);
 
 static ssize_t local_cpus_show(struct device *dev,
 			struct device_attribute *attr, char *buf)
@@ -91,7 +93,7 @@ static ssize_t local_cpus_show(struct device *dev,
 	buf[len] = '\0';
 	return len;
 }
-
+static DEVICE_ATTR_RO(local_cpus);
 
 static ssize_t local_cpulist_show(struct device *dev,
 			struct device_attribute *attr, char *buf)
@@ -110,6 +112,7 @@ static ssize_t local_cpulist_show(struct device *dev,
 	buf[len] = '\0';
 	return len;
 }
+static DEVICE_ATTR_RO(local_cpulist);
 
 /*
  * PCI Bus Class Devices
@@ -170,6 +173,7 @@ resource_show(struct device * dev, struct device_attribute *attr, char * buf)
 	}
 	return (str - buf);
 }
+static DEVICE_ATTR_RO(resource);
 
 static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
@@ -181,10 +185,11 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 		       (u8)(pci_dev->class >> 16), (u8)(pci_dev->class >> 8),
 		       (u8)(pci_dev->class));
 }
+static DEVICE_ATTR_RO(modalias);
 
-static ssize_t is_enabled_store(struct device *dev,
-				struct device_attribute *attr, const char *buf,
-				size_t count)
+static ssize_t enabled_store(struct device *dev,
+			     struct device_attribute *attr, const char *buf,
+			     size_t count)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
 	unsigned long val;
@@ -208,14 +213,15 @@ static ssize_t is_enabled_store(struct device *dev,
 	return result < 0 ? result : count;
 }
 
-static ssize_t is_enabled_show(struct device *dev,
-			       struct device_attribute *attr, char *buf)
+static ssize_t enabled_show(struct device *dev,
+			    struct device_attribute *attr, char *buf)
 {
 	struct pci_dev *pdev;
 
 	pdev = to_pci_dev (dev);
 	return sprintf (buf, "%u\n", atomic_read(&pdev->enable_cnt));
 }
+static DEVICE_ATTR_RW(enabled);
 
 #ifdef CONFIG_NUMA
 static ssize_t
@@ -223,6 +229,7 @@ numa_node_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	return sprintf (buf, "%d\n", dev->numa_node);
 }
+static DEVICE_ATTR_RO(numa_node);
 #endif
 
 static ssize_t
@@ -232,6 +239,7 @@ dma_mask_bits_show(struct device *dev, struct device_attribute *attr, char *buf)
 
 	return sprintf (buf, "%d\n", fls64(pdev->dma_mask));
 }
+static DEVICE_ATTR_RO(dma_mask_bits);
 
 static ssize_t
 consistent_dma_mask_bits_show(struct device *dev, struct device_attribute *attr,
@@ -239,6 +247,7 @@ consistent_dma_mask_bits_show(struct device *dev, struct device_attribute *attr,
 {
 	return sprintf (buf, "%d\n", fls64(dev->coherent_dma_mask));
 }
+static DEVICE_ATTR_RO(consistent_dma_mask_bits);
 
 static ssize_t
 msi_bus_show(struct device *dev, struct device_attribute *attr, char *buf)
@@ -283,6 +292,7 @@ msi_bus_store(struct device *dev, struct device_attribute *attr,
 
 	return count;
 }
+static DEVICE_ATTR_RW(msi_bus);
 
 static DEFINE_MUTEX(pci_remove_rescan_mutex);
 static ssize_t bus_rescan_store(struct bus_type *bus, const char *buf,
@@ -414,6 +424,7 @@ static ssize_t d3cold_allowed_show(struct device *dev,
 	struct pci_dev *pdev = to_pci_dev(dev);
 	return sprintf (buf, "%u\n", pdev->d3cold_allowed);
 }
+static DEVICE_ATTR_RW(d3cold_allowed);
 #endif
 
 #ifdef CONFIG_PCI_IOV
@@ -499,30 +510,38 @@ static struct device_attribute sriov_numvfs_attr =
 		       sriov_numvfs_show, sriov_numvfs_store);
 #endif /* CONFIG_PCI_IOV */
 
-struct device_attribute pci_dev_attrs[] = {
-	__ATTR_RO(resource),
-	__ATTR_RO(vendor),
-	__ATTR_RO(device),
-	__ATTR_RO(subsystem_vendor),
-	__ATTR_RO(subsystem_device),
-	__ATTR_RO(class),
-	__ATTR_RO(irq),
-	__ATTR_RO(local_cpus),
-	__ATTR_RO(local_cpulist),
-	__ATTR_RO(modalias),
+struct attribute *pci_dev_attrs[] = {
+	&dev_attr_resource.attr,
+	&dev_attr_vendor.attr,
+	&dev_attr_device.attr,
+	&dev_attr_subsystem_vendor.attr,
+	&dev_attr_subsystem_device.attr,
+	&dev_attr_class.attr,
+	&dev_attr_irq.attr,
+	&dev_attr_local_cpus.attr,
+	&dev_attr_local_cpulist.attr,
+	&dev_attr_modalias.attr,
 #ifdef CONFIG_NUMA
-	__ATTR_RO(numa_node),
+	&dev_attr_numa_node.attr,
 #endif
-	__ATTR_RO(dma_mask_bits),
-	__ATTR_RO(consistent_dma_mask_bits),
-	__ATTR(enable, 0600, is_enabled_show, is_enabled_store),
-	__ATTR(broken_parity_status,(S_IRUGO|S_IWUSR),
-		broken_parity_status_show,broken_parity_status_store),
-	__ATTR(msi_bus, 0644, msi_bus_show, msi_bus_store),
+	&dev_attr_dma_mask_bits.attr,
+	&dev_attr_consistent_dma_mask_bits.attr,
+	&dev_attr_enabled.attr,
+	&dev_attr_broken_parity_status.attr,
+	&dev_attr_msi_bus.attr,
 #if defined(CONFIG_PM_RUNTIME) && defined(CONFIG_ACPI)
-	__ATTR(d3cold_allowed, 0644, d3cold_allowed_show, d3cold_allowed_store),
+	&dev_attr_d3cold_allowed.attr,
 #endif
-	__ATTR_NULL,
+	NULL,
+};
+
+static const struct attribute_group pci_dev_group = {
+	.attrs = pci_dev_attrs,
+};
+
+const struct attribute_group *pci_dev_groups[] = {
+	&pci_dev_group,
+	NULL,
 };
 
 static struct attribute *pcibus_attrs[] = {
diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h
index 607be58dd728..9c91ecc1301b 100644
--- a/drivers/pci/pci.h
+++ b/drivers/pci/pci.h
@@ -153,7 +153,7 @@ static inline int pci_no_d1d2(struct pci_dev *dev)
 	return (dev->no_d1d2 || parent_dstates);
 
 }
-extern struct device_attribute pci_dev_attrs[];
+extern const struct attribute_group *pci_dev_groups[];
 extern const struct attribute_group *pcibus_groups[];
 extern struct device_type pci_dev_type;
 extern const struct attribute_group *pci_bus_groups[];
-- 
cgit 


From bf22c90fb190e837173d61368e3c80f5b78751a8 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sat, 28 Sep 2013 15:42:00 +0530
Subject: PCI: Make pci_bus_attrs, pci_dev_attrs, dev_rescan_attr,
 dev_remove_attr, vga_attr static

Local variables used only in this file are made static.

[bhelgaas: also make pci_dev_attrs[] static (from Fengguang)]
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/pci-sysfs.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 618c06094295..82cc45867eaa 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -314,7 +314,7 @@ static ssize_t bus_rescan_store(struct bus_type *bus, const char *buf,
 }
 static BUS_ATTR(rescan, (S_IWUSR|S_IWGRP), NULL, bus_rescan_store);
 
-struct attribute *pci_bus_attrs[] = {
+static struct attribute *pci_bus_attrs[] = {
 	&bus_attr_rescan.attr,
 	NULL,
 };
@@ -345,8 +345,9 @@ dev_rescan_store(struct device *dev, struct device_attribute *attr,
 	}
 	return count;
 }
-struct device_attribute dev_rescan_attr = __ATTR(rescan, (S_IWUSR|S_IWGRP),
-						 NULL, dev_rescan_store);
+static struct device_attribute dev_rescan_attr = __ATTR(rescan,
+							(S_IWUSR|S_IWGRP),
+							NULL, dev_rescan_store);
 
 static void remove_callback(struct device *dev)
 {
@@ -376,8 +377,9 @@ remove_store(struct device *dev, struct device_attribute *dummy,
 		count = ret;
 	return count;
 }
-struct device_attribute dev_remove_attr = __ATTR(remove, (S_IWUSR|S_IWGRP),
-						 NULL, remove_store);
+static struct device_attribute dev_remove_attr = __ATTR(remove,
+							(S_IWUSR|S_IWGRP),
+							NULL, remove_store);
 
 static ssize_t
 dev_bus_rescan_store(struct device *dev, struct device_attribute *attr,
@@ -510,7 +512,7 @@ static struct device_attribute sriov_numvfs_attr =
 		       sriov_numvfs_show, sriov_numvfs_store);
 #endif /* CONFIG_PCI_IOV */
 
-struct attribute *pci_dev_attrs[] = {
+static struct attribute *pci_dev_attrs[] = {
 	&dev_attr_resource.attr,
 	&dev_attr_vendor.attr,
 	&dev_attr_device.attr,
@@ -573,7 +575,7 @@ boot_vga_show(struct device *dev, struct device_attribute *attr, char *buf)
 		!!(pdev->resource[PCI_ROM_RESOURCE].flags &
 		   IORESOURCE_ROM_SHADOW));
 }
-struct device_attribute vga_attr = __ATTR_RO(boot_vga);
+static struct device_attribute vga_attr = __ATTR_RO(boot_vga);
 
 static ssize_t
 pci_read_config(struct file *filp, struct kobject *kobj,
-- 
cgit 


From f91da04d0aebf8edbcd2fde5f9d7df85a0b6f6cd Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 4 Oct 2013 12:04:44 -0600
Subject: PCI: Make pci_dev_pm_ops static

pci_dev_pm_ops is local to pci-driver.c.  Make it static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/pci-driver.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 98f7b9b89507..32b6bc5a23ac 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -1121,7 +1121,7 @@ static int pci_pm_runtime_idle(struct device *dev)
 
 #ifdef CONFIG_PM
 
-const struct dev_pm_ops pci_dev_pm_ops = {
+static const struct dev_pm_ops pci_dev_pm_ops = {
 	.prepare = pci_pm_prepare,
 	.complete = pci_pm_complete,
 	.suspend = pci_pm_suspend,
-- 
cgit 


From fa9e9621900497f0e74f1719ee5e9b34feffd829 Mon Sep 17 00:00:00 2001
From: Myron Stowe <myron.stowe@redhat.com>
Date: Sat, 28 Sep 2013 11:55:49 -0600
Subject: cris/PCI: Remove unused pci_mem_start

Remove unused 'pci_mem_start' variable.

Signed-off-by: Myron Stowe <myron.stowe@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Mikael Starvik <starvik@axis.com>
CC: Jesper Nilsson <jesper.nilsson@axis.com>
---
 arch/cris/include/asm/pci.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/cris/include/asm/pci.h b/arch/cris/include/asm/pci.h
index 146da904cdd8..f666734926d5 100644
--- a/arch/cris/include/asm/pci.h
+++ b/arch/cris/include/asm/pci.h
@@ -11,7 +11,6 @@
 
 #define pcibios_assign_all_busses(void) 1
 
-extern unsigned long pci_mem_start;
 #define PCIBIOS_MIN_IO		0x1000
 #define PCIBIOS_MIN_MEM		0x10000000
 
-- 
cgit 


From 135530d584bafa88bcb924552fb13bcab07ca1a5 Mon Sep 17 00:00:00 2001
From: Myron Stowe <myron.stowe@redhat.com>
Date: Sat, 28 Sep 2013 11:59:56 -0600
Subject: mn10300/PCI: Remove unused pci_mem_start

Remove unused 'pci_mem_start' variable.

Signed-off-by: Myron Stowe <myron.stowe@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: David Howells <dhowells@redhat.com>
CC: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
---
 arch/mn10300/include/asm/pci.h | 1 -
 arch/mn10300/kernel/setup.c    | 3 ---
 2 files changed, 4 deletions(-)

diff --git a/arch/mn10300/include/asm/pci.h b/arch/mn10300/include/asm/pci.h
index 6f31cc0f1a87..166323824683 100644
--- a/arch/mn10300/include/asm/pci.h
+++ b/arch/mn10300/include/asm/pci.h
@@ -44,7 +44,6 @@ extern void unit_pci_init(void);
 #define pcibios_assign_all_busses()	0
 #endif
 
-extern unsigned long pci_mem_start;
 #define PCIBIOS_MIN_IO		0xBE000004
 #define PCIBIOS_MIN_MEM		0xB8000000
 
diff --git a/arch/mn10300/kernel/setup.c b/arch/mn10300/kernel/setup.c
index ebac9c11f796..2ad7f32fa122 100644
--- a/arch/mn10300/kernel/setup.c
+++ b/arch/mn10300/kernel/setup.c
@@ -35,9 +35,6 @@
 
 struct mn10300_cpuinfo boot_cpu_data;
 
-/* For PCI or other memory-mapped resources */
-unsigned long pci_mem_start = 0x18000000;
-
 static char __initdata cmd_line[COMMAND_LINE_SIZE];
 char redboot_command_line[COMMAND_LINE_SIZE] =
 	"console=ttyS0,115200 root=/dev/mtdblock3 rw";
-- 
cgit 


From c489f5fbb1f5a770f98e492af5c47befb32890cd Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Mon, 30 Sep 2013 15:02:38 +0800
Subject: PCI: Add pci_dev_show_local_cpu() to simplify code

local_cpus_show() and local_cpulist_show() are almost the same.
This adds a new helper function, pci_dev_show_local_cpu(), to simplify
code.

The same strategy is already used by cpuaffinity_show() and
cpulistaffinity_show().

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/pci-sysfs.c | 32 +++++++++++++++-----------------
 1 file changed, 15 insertions(+), 17 deletions(-)

diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 7128cfdd64aa..d9252dd89ea9 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -74,9 +74,11 @@ static ssize_t broken_parity_status_store(struct device *dev,
 	return count;
 }
 
-static ssize_t local_cpus_show(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{		
+static ssize_t pci_dev_show_local_cpu(struct device *dev,
+		int type,
+		struct device_attribute *attr,
+		char *buf)
+{
 	const struct cpumask *mask;
 	int len;
 
@@ -86,29 +88,25 @@ static ssize_t local_cpus_show(struct device *dev,
 #else
 	mask = cpumask_of_pcibus(to_pci_dev(dev)->bus);
 #endif
-	len = cpumask_scnprintf(buf, PAGE_SIZE-2, mask);
+	len = type ?
+		cpumask_scnprintf(buf, PAGE_SIZE-2, mask) :
+		cpulist_scnprintf(buf, PAGE_SIZE-2, mask);
+
 	buf[len++] = '\n';
 	buf[len] = '\0';
 	return len;
 }
 
+static ssize_t local_cpus_show(struct device *dev,
+			struct device_attribute *attr, char *buf)
+{
+	return pci_dev_show_local_cpu(dev, 1, attr, buf);
+}
 
 static ssize_t local_cpulist_show(struct device *dev,
 			struct device_attribute *attr, char *buf)
 {
-	const struct cpumask *mask;
-	int len;
-
-#ifdef CONFIG_NUMA
-	mask = (dev_to_node(dev) == -1) ? cpu_online_mask :
-					  cpumask_of_node(dev_to_node(dev));
-#else
-	mask = cpumask_of_pcibus(to_pci_dev(dev)->bus);
-#endif
-	len = cpulist_scnprintf(buf, PAGE_SIZE-2, mask);
-	buf[len++] = '\n';
-	buf[len] = '\0';
-	return len;
+	return pci_dev_show_local_cpu(dev, 0, attr, buf);
 }
 
 /*
-- 
cgit 


From 84822b158fd3fc7d9f9c67f1b26a1e007880e13c Mon Sep 17 00:00:00 2001
From: Liu Chuansheng <chuansheng.liu@intel.com>
Date: Mon, 7 Oct 2013 15:29:27 -0600
Subject: PCI/PM: Remove pci_pm_complete()

88d26136 ("PM: Prevent runtime suspend during system resume") removed the
pm_runtime_put_sync() from pci_pm_complete() to PM core code
device_complete().

Here the pci_pm_complete() is doing the same work which can be done in
device_complete(), so we can remove it directly.

Signed-off-by: Liu Chuansheng <chuansheng.liu@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/pci/pci-driver.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 32b6bc5a23ac..b60fe6737f78 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -599,18 +599,10 @@ static int pci_pm_prepare(struct device *dev)
 	return error;
 }
 
-static void pci_pm_complete(struct device *dev)
-{
-	struct device_driver *drv = dev->driver;
-
-	if (drv && drv->pm && drv->pm->complete)
-		drv->pm->complete(dev);
-}
 
 #else /* !CONFIG_PM_SLEEP */
 
 #define pci_pm_prepare	NULL
-#define pci_pm_complete	NULL
 
 #endif /* !CONFIG_PM_SLEEP */
 
@@ -1123,7 +1115,6 @@ static int pci_pm_runtime_idle(struct device *dev)
 
 static const struct dev_pm_ops pci_dev_pm_ops = {
 	.prepare = pci_pm_prepare,
-	.complete = pci_pm_complete,
 	.suspend = pci_pm_suspend,
 	.resume = pci_pm_resume,
 	.freeze = pci_pm_freeze,
-- 
cgit 


From 0fa93b914d45ed8dd248bd621d4396e9f790817c Mon Sep 17 00:00:00 2001
From: Heiko Stuebner <heiko@sntech.de>
Date: Tue, 8 Oct 2013 06:42:10 +0900
Subject: ARM: S3C24XX: number the dma clocks

Each dma channel has its own clock. The upcoming dma driver wants to
handle these itself and therefore needs to be able to get the correct
clock for a channel.

Therefore rename the dma clocks to "dma.X" for s3c2412, s3c2416 and
s3c2443. This does not change the behaviour for the old dma driver at
all, as all dma clocks are still always on and not handled by the old
dma driver at all.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/mach-s3c24xx/clock-s3c2412.c  |  8 ++++----
 arch/arm/mach-s3c24xx/common-s3c2443.c | 12 ++++++------
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/arch/arm/mach-s3c24xx/clock-s3c2412.c b/arch/arm/mach-s3c24xx/clock-s3c2412.c
index d8f253f2b486..11b3b28457bb 100644
--- a/arch/arm/mach-s3c24xx/clock-s3c2412.c
+++ b/arch/arm/mach-s3c24xx/clock-s3c2412.c
@@ -484,22 +484,22 @@ static struct clk init_clocks_disable[] = {
 
 static struct clk init_clocks[] = {
 	{
-		.name		= "dma",
+		.name		= "dma.0",
 		.parent		= &clk_h,
 		.enable		= s3c2412_clkcon_enable,
 		.ctrlbit	= S3C2412_CLKCON_DMA0,
 	}, {
-		.name		= "dma",
+		.name		= "dma.1",
 		.parent		= &clk_h,
 		.enable		= s3c2412_clkcon_enable,
 		.ctrlbit	= S3C2412_CLKCON_DMA1,
 	}, {
-		.name		= "dma",
+		.name		= "dma.2",
 		.parent		= &clk_h,
 		.enable		= s3c2412_clkcon_enable,
 		.ctrlbit	= S3C2412_CLKCON_DMA2,
 	}, {
-		.name		= "dma",
+		.name		= "dma.3",
 		.parent		= &clk_h,
 		.enable		= s3c2412_clkcon_enable,
 		.ctrlbit	= S3C2412_CLKCON_DMA3,
diff --git a/arch/arm/mach-s3c24xx/common-s3c2443.c b/arch/arm/mach-s3c24xx/common-s3c2443.c
index f6b9f2ef01bd..65d3eef73090 100644
--- a/arch/arm/mach-s3c24xx/common-s3c2443.c
+++ b/arch/arm/mach-s3c24xx/common-s3c2443.c
@@ -438,32 +438,32 @@ static struct clk init_clocks_off[] = {
 
 static struct clk init_clocks[] = {
 	{
-		.name		= "dma",
+		.name		= "dma.0",
 		.parent		= &clk_h,
 		.enable		= s3c2443_clkcon_enable_h,
 		.ctrlbit	= S3C2443_HCLKCON_DMA0,
 	}, {
-		.name		= "dma",
+		.name		= "dma.1",
 		.parent		= &clk_h,
 		.enable		= s3c2443_clkcon_enable_h,
 		.ctrlbit	= S3C2443_HCLKCON_DMA1,
 	}, {
-		.name		= "dma",
+		.name		= "dma.2",
 		.parent		= &clk_h,
 		.enable		= s3c2443_clkcon_enable_h,
 		.ctrlbit	= S3C2443_HCLKCON_DMA2,
 	}, {
-		.name		= "dma",
+		.name		= "dma.3",
 		.parent		= &clk_h,
 		.enable		= s3c2443_clkcon_enable_h,
 		.ctrlbit	= S3C2443_HCLKCON_DMA3,
 	}, {
-		.name		= "dma",
+		.name		= "dma.4",
 		.parent		= &clk_h,
 		.enable		= s3c2443_clkcon_enable_h,
 		.ctrlbit	= S3C2443_HCLKCON_DMA4,
 	}, {
-		.name		= "dma",
+		.name		= "dma.5",
 		.parent		= &clk_h,
 		.enable		= s3c2443_clkcon_enable_h,
 		.ctrlbit	= S3C2443_HCLKCON_DMA5,
-- 
cgit 


From ddeccb8d6b5bbe2c1e3a29f8c74b52f170c2207d Mon Sep 17 00:00:00 2001
From: Heiko Stuebner <heiko@sntech.de>
Date: Tue, 8 Oct 2013 06:42:10 +0900
Subject: dmaengine: add driver for Samsung s3c24xx SoCs

This adds a new driver to support the s3c24xx dma using the dmaengine
and makes the old one in mach-s3c24xx obsolete in the long run.

Conceptually the s3c24xx-dma feels like a distant relative of the pl08x
with numerous virtual channels being mapped to a lot less physical ones.
The driver therefore borrows a lot from the amba-pl08x driver in this
regard. Functionality-wise the driver gains a memcpy ability in addition
to the slave_sg one.

The driver supports both the method for requesting the peripheral used
by SoCs before the S3C2443 and the different method for S3C2443 and later.

On earlier SoCs the hardware channels usable for specific peripherals is
constrainted while on later SoCs all channels can be used for any peripheral.

Tested on a s3c2416-based board, memcpy using the dmatest module and
slave_sg partially using the spi-s3c64xx driver.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 drivers/dma/Kconfig                       |   12 +
 drivers/dma/Makefile                      |    1 +
 drivers/dma/s3c24xx-dma.c                 | 1340 +++++++++++++++++++++++++++++
 include/linux/platform_data/dma-s3c24xx.h |   43 +
 4 files changed, 1396 insertions(+)
 create mode 100644 drivers/dma/s3c24xx-dma.c
 create mode 100644 include/linux/platform_data/dma-s3c24xx.h

diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index 526ec77c7ba0..d639115aa875 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -154,6 +154,18 @@ config TEGRA20_APB_DMA
 	  This DMA controller transfers data from memory to peripheral fifo
 	  or vice versa. It does not support memory to memory data transfer.
 
+config S3C24XX_DMAC
+	tristate "Samsung S3C24XX DMA support"
+	depends on ARCH_S3C24XX && !S3C24XX_DMA
+	select DMA_ENGINE
+	select DMA_VIRTUAL_CHANNELS
+	help
+	  Support for the Samsung S3C24XX DMA controller driver. The
+	  DMA controller is having multiple DMA channels which can be
+	  configured for different peripherals like audio, UART, SPI.
+	  The DMA controller can transfer data from memory to peripheral,
+	  periphal to memory, periphal to periphal and memory to memory.
+
 source "drivers/dma/sh/Kconfig"
 
 config COH901318
diff --git a/drivers/dma/Makefile b/drivers/dma/Makefile
index db89035b3626..0ce2da97e429 100644
--- a/drivers/dma/Makefile
+++ b/drivers/dma/Makefile
@@ -30,6 +30,7 @@ obj-$(CONFIG_SIRF_DMA) += sirf-dma.o
 obj-$(CONFIG_TI_EDMA) += edma.o
 obj-$(CONFIG_STE_DMA40) += ste_dma40.o ste_dma40_ll.o
 obj-$(CONFIG_TEGRA20_APB_DMA) += tegra20-apb-dma.o
+obj-$(CONFIG_S3C24XX_DMAC) += s3c24xx-dma.o
 obj-$(CONFIG_PL330_DMA) += pl330.o
 obj-$(CONFIG_PCH_DMA) += pch_dma.o
 obj-$(CONFIG_AMBA_PL08X) += amba-pl08x.o
diff --git a/drivers/dma/s3c24xx-dma.c b/drivers/dma/s3c24xx-dma.c
new file mode 100644
index 000000000000..56c92538bc4c
--- /dev/null
+++ b/drivers/dma/s3c24xx-dma.c
@@ -0,0 +1,1340 @@
+/*
+ * S3C24XX DMA handling
+ *
+ * Copyright (c) 2013 Heiko Stuebner <heiko@sntech.de>
+ *
+ * based on amba-pl08x.c
+ *
+ * Copyright (c) 2006 ARM Ltd.
+ * Copyright (c) 2010 ST-Ericsson SA
+ *
+ * Author: Peter Pearse <peter.pearse@arm.com>
+ * Author: Linus Walleij <linus.walleij@stericsson.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * The DMA controllers in S3C24XX SoCs have a varying number of DMA signals
+ * that can be routed to any of the 4 to 8 hardware-channels.
+ *
+ * Therefore on these DMA controllers the number of channels
+ * and the number of incoming DMA signals are two totally different things.
+ * It is usually not possible to theoretically handle all physical signals,
+ * so a multiplexing scheme with possible denial of use is necessary.
+ *
+ * Open items:
+ * - bursts
+ */
+
+#include <linux/platform_device.h>
+#include <linux/types.h>
+#include <linux/dmaengine.h>
+#include <linux/dma-mapping.h>
+#include <linux/interrupt.h>
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/platform_data/dma-s3c24xx.h>
+
+#include "dmaengine.h"
+#include "virt-dma.h"
+
+#define MAX_DMA_CHANNELS	8
+
+#define S3C24XX_DISRC			0x00
+#define S3C24XX_DISRCC			0x04
+#define S3C24XX_DISRCC_INC_INCREMENT	0
+#define S3C24XX_DISRCC_INC_FIXED	BIT(0)
+#define S3C24XX_DISRCC_LOC_AHB		0
+#define S3C24XX_DISRCC_LOC_APB		BIT(1)
+
+#define S3C24XX_DIDST			0x08
+#define S3C24XX_DIDSTC			0x0c
+#define S3C24XX_DIDSTC_INC_INCREMENT	0
+#define S3C24XX_DIDSTC_INC_FIXED	BIT(0)
+#define S3C24XX_DIDSTC_LOC_AHB		0
+#define S3C24XX_DIDSTC_LOC_APB		BIT(1)
+#define S3C24XX_DIDSTC_INT_TC0		0
+#define S3C24XX_DIDSTC_INT_RELOAD	BIT(2)
+
+#define S3C24XX_DCON			0x10
+
+#define S3C24XX_DCON_TC_MASK		0xfffff
+#define S3C24XX_DCON_DSZ_BYTE		(0 << 20)
+#define S3C24XX_DCON_DSZ_HALFWORD	(1 << 20)
+#define S3C24XX_DCON_DSZ_WORD		(2 << 20)
+#define S3C24XX_DCON_DSZ_MASK		(3 << 20)
+#define S3C24XX_DCON_DSZ_SHIFT		20
+#define S3C24XX_DCON_AUTORELOAD		0
+#define S3C24XX_DCON_NORELOAD		BIT(22)
+#define S3C24XX_DCON_HWTRIG		BIT(23)
+#define S3C24XX_DCON_HWSRC_SHIFT	24
+#define S3C24XX_DCON_SERV_SINGLE	0
+#define S3C24XX_DCON_SERV_WHOLE		BIT(27)
+#define S3C24XX_DCON_TSZ_UNIT		0
+#define S3C24XX_DCON_TSZ_BURST4		BIT(28)
+#define S3C24XX_DCON_INT		BIT(29)
+#define S3C24XX_DCON_SYNC_PCLK		0
+#define S3C24XX_DCON_SYNC_HCLK		BIT(30)
+#define S3C24XX_DCON_DEMAND		0
+#define S3C24XX_DCON_HANDSHAKE		BIT(31)
+
+#define S3C24XX_DSTAT			0x14
+#define S3C24XX_DSTAT_STAT_BUSY		BIT(20)
+#define S3C24XX_DSTAT_CURRTC_MASK	0xfffff
+
+#define S3C24XX_DMASKTRIG		0x20
+#define S3C24XX_DMASKTRIG_SWTRIG	BIT(0)
+#define S3C24XX_DMASKTRIG_ON		BIT(1)
+#define S3C24XX_DMASKTRIG_STOP		BIT(2)
+
+#define S3C24XX_DMAREQSEL		0x24
+#define S3C24XX_DMAREQSEL_HW		BIT(0)
+
+/*
+ * S3C2410, S3C2440 and S3C2442 SoCs cannot select any physical channel
+ * for a DMA source. Instead only specific channels are valid.
+ * All of these SoCs have 4 physical channels and the number of request
+ * source bits is 3. Additionally we also need 1 bit to mark the channel
+ * as valid.
+ * Therefore we separate the chansel element of the channel data into 4
+ * parts of 4 bits each, to hold the information if the channel is valid
+ * and the hw request source to use.
+ *
+ * Example:
+ * SDI is valid on channels 0, 2 and 3 - with varying hw request sources.
+ * For it the chansel field would look like
+ *
+ * ((BIT(3) | 1) << 3 * 4) | // channel 3, with request source 1
+ * ((BIT(3) | 2) << 2 * 4) | // channel 2, with request source 2
+ * ((BIT(3) | 2) << 0 * 4)   // channel 0, with request source 2
+ */
+#define S3C24XX_CHANSEL_WIDTH		4
+#define S3C24XX_CHANSEL_VALID		BIT(3)
+#define S3C24XX_CHANSEL_REQ_MASK	7
+
+/*
+ * struct soc_data - vendor-specific config parameters for individual SoCs
+ * @stride: spacing between the registers of each channel
+ * @has_reqsel: does the controller use the newer requestselection mechanism
+ * @has_clocks: are controllable dma-clocks present
+ */
+struct soc_data {
+	int stride;
+	bool has_reqsel;
+	bool has_clocks;
+};
+
+/*
+ * enum s3c24xx_dma_chan_state - holds the virtual channel states
+ * @S3C24XX_DMA_CHAN_IDLE: the channel is idle
+ * @S3C24XX_DMA_CHAN_RUNNING: the channel has allocated a physical transport
+ * channel and is running a transfer on it
+ * @S3C24XX_DMA_CHAN_WAITING: the channel is waiting for a physical transport
+ * channel to become available (only pertains to memcpy channels)
+ */
+enum s3c24xx_dma_chan_state {
+	S3C24XX_DMA_CHAN_IDLE,
+	S3C24XX_DMA_CHAN_RUNNING,
+	S3C24XX_DMA_CHAN_WAITING,
+};
+
+/*
+ * struct s3c24xx_sg - structure containing data per sg
+ * @src_addr: src address of sg
+ * @dst_addr: dst address of sg
+ * @len: transfer len in bytes
+ * @node: node for txd's dsg_list
+ */
+struct s3c24xx_sg {
+	dma_addr_t src_addr;
+	dma_addr_t dst_addr;
+	size_t len;
+	struct list_head node;
+};
+
+/*
+ * struct s3c24xx_txd - wrapper for struct dma_async_tx_descriptor
+ * @vd: virtual DMA descriptor
+ * @dsg_list: list of children sg's
+ * @at: sg currently being transfered
+ * @width: transfer width
+ * @disrcc: value for source control register
+ * @didstc: value for destination control register
+ * @dcon: base value for dcon register
+ */
+struct s3c24xx_txd {
+	struct virt_dma_desc vd;
+	struct list_head dsg_list;
+	struct list_head *at;
+	u8 width;
+	u32 disrcc;
+	u32 didstc;
+	u32 dcon;
+};
+
+struct s3c24xx_dma_chan;
+
+/*
+ * struct s3c24xx_dma_phy - holder for the physical channels
+ * @id: physical index to this channel
+ * @valid: does the channel have all required elements
+ * @base: virtual memory base (remapped) for the this channel
+ * @irq: interrupt for this channel
+ * @clk: clock for this channel
+ * @lock: a lock to use when altering an instance of this struct
+ * @serving: virtual channel currently being served by this physicalchannel
+ * @host: a pointer to the host (internal use)
+ */
+struct s3c24xx_dma_phy {
+	unsigned int			id;
+	bool				valid;
+	void __iomem			*base;
+	unsigned int			irq;
+	struct clk			*clk;
+	spinlock_t			lock;
+	struct s3c24xx_dma_chan		*serving;
+	struct s3c24xx_dma_engine	*host;
+};
+
+/*
+ * struct s3c24xx_dma_chan - this structure wraps a DMA ENGINE channel
+ * @id: the id of the channel
+ * @name: name of the channel
+ * @vc: wrappped virtual channel
+ * @phy: the physical channel utilized by this channel, if there is one
+ * @runtime_addr: address for RX/TX according to the runtime config
+ * @at: active transaction on this channel
+ * @lock: a lock for this channel data
+ * @host: a pointer to the host (internal use)
+ * @state: whether the channel is idle, running etc
+ * @slave: whether this channel is a device (slave) or for memcpy
+ */
+struct s3c24xx_dma_chan {
+	int id;
+	const char *name;
+	struct virt_dma_chan vc;
+	struct s3c24xx_dma_phy *phy;
+	struct dma_slave_config cfg;
+	struct s3c24xx_txd *at;
+	struct s3c24xx_dma_engine *host;
+	enum s3c24xx_dma_chan_state state;
+	bool slave;
+};
+
+/*
+ * struct s3c24xx_dma_engine - the local state holder for the S3C24XX
+ * @pdev: the corresponding platform device
+ * @pdata: platform data passed in from the platform/machine
+ * @base: virtual memory base (remapped)
+ * @slave: slave engine for this instance
+ * @memcpy: memcpy engine for this instance
+ * @phy_chans: array of data for the physical channels
+ */
+struct s3c24xx_dma_engine {
+	struct platform_device			*pdev;
+	const struct s3c24xx_dma_platdata	*pdata;
+	struct soc_data				*sdata;
+	void __iomem				*base;
+	struct dma_device			slave;
+	struct dma_device			memcpy;
+	struct s3c24xx_dma_phy			*phy_chans;
+};
+
+/*
+ * Physical channel handling
+ */
+
+/*
+ * Check whether a certain channel is busy or not.
+ */
+static int s3c24xx_dma_phy_busy(struct s3c24xx_dma_phy *phy)
+{
+	unsigned int val = readl(phy->base + S3C24XX_DSTAT);
+	return val & S3C24XX_DSTAT_STAT_BUSY;
+}
+
+static bool s3c24xx_dma_phy_valid(struct s3c24xx_dma_chan *s3cchan,
+				  struct s3c24xx_dma_phy *phy)
+{
+	struct s3c24xx_dma_engine *s3cdma = s3cchan->host;
+	const struct s3c24xx_dma_platdata *pdata = s3cdma->pdata;
+	struct s3c24xx_dma_channel *cdata = &pdata->channels[s3cchan->id];
+	int phyvalid;
+
+	/* every phy is valid for memcopy channels */
+	if (!s3cchan->slave)
+		return true;
+
+	/* On newer variants all phys can be used for all virtual channels */
+	if (s3cdma->sdata->has_reqsel)
+		return true;
+
+	phyvalid = (cdata->chansel >> (phy->id * S3C24XX_CHANSEL_WIDTH));
+	return (phyvalid & S3C24XX_CHANSEL_VALID) ? true : false;
+}
+
+/*
+ * Allocate a physical channel for a virtual channel
+ *
+ * Try to locate a physical channel to be used for this transfer. If all
+ * are taken return NULL and the requester will have to cope by using
+ * some fallback PIO mode or retrying later.
+ */
+static
+struct s3c24xx_dma_phy *s3c24xx_dma_get_phy(struct s3c24xx_dma_chan *s3cchan)
+{
+	struct s3c24xx_dma_engine *s3cdma = s3cchan->host;
+	const struct s3c24xx_dma_platdata *pdata = s3cdma->pdata;
+	struct s3c24xx_dma_channel *cdata;
+	struct s3c24xx_dma_phy *phy = NULL;
+	unsigned long flags;
+	int i;
+	int ret;
+
+	if (s3cchan->slave)
+		cdata = &pdata->channels[s3cchan->id];
+
+	for (i = 0; i < s3cdma->pdata->num_phy_channels; i++) {
+		phy = &s3cdma->phy_chans[i];
+
+		if (!phy->valid)
+			continue;
+
+		if (!s3c24xx_dma_phy_valid(s3cchan, phy))
+			continue;
+
+		spin_lock_irqsave(&phy->lock, flags);
+
+		if (!phy->serving) {
+			phy->serving = s3cchan;
+			spin_unlock_irqrestore(&phy->lock, flags);
+			break;
+		}
+
+		spin_unlock_irqrestore(&phy->lock, flags);
+	}
+
+	/* No physical channel available, cope with it */
+	if (i == s3cdma->pdata->num_phy_channels) {
+		dev_warn(&s3cdma->pdev->dev, "no phy channel available\n");
+		return NULL;
+	}
+
+	/* start the phy clock */
+	if (s3cdma->sdata->has_clocks) {
+		ret = clk_enable(phy->clk);
+		if (ret) {
+			dev_err(&s3cdma->pdev->dev, "could not enable clock for channel %d, err %d\n",
+				phy->id, ret);
+			phy->serving = NULL;
+			return NULL;
+		}
+	}
+
+	return phy;
+}
+
+/*
+ * Mark the physical channel as free.
+ *
+ * This drops the link between the physical and virtual channel.
+ */
+static inline void s3c24xx_dma_put_phy(struct s3c24xx_dma_phy *phy)
+{
+	struct s3c24xx_dma_engine *s3cdma = phy->host;
+
+	if (s3cdma->sdata->has_clocks)
+		clk_disable(phy->clk);
+
+	phy->serving = NULL;
+}
+
+/*
+ * Stops the channel by writing the stop bit.
+ * This should not be used for an on-going transfer, but as a method of
+ * shutting down a channel (eg, when it's no longer used) or terminating a
+ * transfer.
+ */
+static void s3c24xx_dma_terminate_phy(struct s3c24xx_dma_phy *phy)
+{
+	writel(S3C24XX_DMASKTRIG_STOP, phy->base + S3C24XX_DMASKTRIG);
+}
+
+/*
+ * Virtual channel handling
+ */
+
+static inline
+struct s3c24xx_dma_chan *to_s3c24xx_dma_chan(struct dma_chan *chan)
+{
+	return container_of(chan, struct s3c24xx_dma_chan, vc.chan);
+}
+
+static u32 s3c24xx_dma_getbytes_chan(struct s3c24xx_dma_chan *s3cchan)
+{
+	struct s3c24xx_dma_phy *phy = s3cchan->phy;
+	struct s3c24xx_txd *txd = s3cchan->at;
+	u32 tc = readl(phy->base + S3C24XX_DSTAT) & S3C24XX_DSTAT_CURRTC_MASK;
+
+	return tc * txd->width;
+}
+
+static int s3c24xx_dma_set_runtime_config(struct s3c24xx_dma_chan *s3cchan,
+				  struct dma_slave_config *config)
+{
+	if (!s3cchan->slave)
+		return -EINVAL;
+
+	/* Reject definitely invalid configurations */
+	if (config->src_addr_width == DMA_SLAVE_BUSWIDTH_8_BYTES ||
+	    config->dst_addr_width == DMA_SLAVE_BUSWIDTH_8_BYTES)
+		return -EINVAL;
+
+	s3cchan->cfg = *config;
+
+	return 0;
+}
+
+/*
+ * Transfer handling
+ */
+
+static inline
+struct s3c24xx_txd *to_s3c24xx_txd(struct dma_async_tx_descriptor *tx)
+{
+	return container_of(tx, struct s3c24xx_txd, vd.tx);
+}
+
+static struct s3c24xx_txd *s3c24xx_dma_get_txd(void)
+{
+	struct s3c24xx_txd *txd = kzalloc(sizeof(*txd), GFP_NOWAIT);
+
+	if (txd) {
+		INIT_LIST_HEAD(&txd->dsg_list);
+		txd->dcon = S3C24XX_DCON_INT | S3C24XX_DCON_NORELOAD;
+	}
+
+	return txd;
+}
+
+static void s3c24xx_dma_free_txd(struct s3c24xx_txd *txd)
+{
+	struct s3c24xx_sg *dsg, *_dsg;
+
+	list_for_each_entry_safe(dsg, _dsg, &txd->dsg_list, node) {
+		list_del(&dsg->node);
+		kfree(dsg);
+	}
+
+	kfree(txd);
+}
+
+static void s3c24xx_dma_start_next_sg(struct s3c24xx_dma_chan *s3cchan,
+				       struct s3c24xx_txd *txd)
+{
+	struct s3c24xx_dma_engine *s3cdma = s3cchan->host;
+	struct s3c24xx_dma_phy *phy = s3cchan->phy;
+	const struct s3c24xx_dma_platdata *pdata = s3cdma->pdata;
+	struct s3c24xx_sg *dsg = list_entry(txd->at, struct s3c24xx_sg, node);
+	u32 dcon = txd->dcon;
+	u32 val;
+
+	/* transfer-size and -count from len and width */
+	switch (txd->width) {
+	case 1:
+		dcon |= S3C24XX_DCON_DSZ_BYTE | dsg->len;
+		break;
+	case 2:
+		dcon |= S3C24XX_DCON_DSZ_HALFWORD | (dsg->len / 2);
+		break;
+	case 4:
+		dcon |= S3C24XX_DCON_DSZ_WORD | (dsg->len / 4);
+		break;
+	}
+
+	if (s3cchan->slave) {
+		struct s3c24xx_dma_channel *cdata =
+					&pdata->channels[s3cchan->id];
+
+		if (s3cdma->sdata->has_reqsel) {
+			writel_relaxed((cdata->chansel << 1) |
+							S3C24XX_DMAREQSEL_HW,
+					phy->base + S3C24XX_DMAREQSEL);
+		} else {
+			int csel = cdata->chansel >> (phy->id *
+							S3C24XX_CHANSEL_WIDTH);
+
+			csel &= S3C24XX_CHANSEL_REQ_MASK;
+			dcon |= csel << S3C24XX_DCON_HWSRC_SHIFT;
+			dcon |= S3C24XX_DCON_HWTRIG;
+		}
+	} else {
+		if (s3cdma->sdata->has_reqsel)
+			writel_relaxed(0, phy->base + S3C24XX_DMAREQSEL);
+	}
+
+	writel_relaxed(dsg->src_addr, phy->base + S3C24XX_DISRC);
+	writel_relaxed(txd->disrcc, phy->base + S3C24XX_DISRCC);
+	writel_relaxed(dsg->dst_addr, phy->base + S3C24XX_DIDST);
+	writel_relaxed(txd->didstc, phy->base + S3C24XX_DIDSTC);
+	writel_relaxed(dcon, phy->base + S3C24XX_DCON);
+
+	val = readl_relaxed(phy->base + S3C24XX_DMASKTRIG);
+	val &= ~S3C24XX_DMASKTRIG_STOP;
+	val |= S3C24XX_DMASKTRIG_ON;
+
+	/* trigger the dma operation for memcpy transfers */
+	if (!s3cchan->slave)
+		val |= S3C24XX_DMASKTRIG_SWTRIG;
+
+	writel(val, phy->base + S3C24XX_DMASKTRIG);
+}
+
+/*
+ * Set the initial DMA register values and start first sg.
+ */
+static void s3c24xx_dma_start_next_txd(struct s3c24xx_dma_chan *s3cchan)
+{
+	struct s3c24xx_dma_phy *phy = s3cchan->phy;
+	struct virt_dma_desc *vd = vchan_next_desc(&s3cchan->vc);
+	struct s3c24xx_txd *txd = to_s3c24xx_txd(&vd->tx);
+
+	list_del(&txd->vd.node);
+
+	s3cchan->at = txd;
+
+	/* Wait for channel inactive */
+	while (s3c24xx_dma_phy_busy(phy))
+		cpu_relax();
+
+	/* point to the first element of the sg list */
+	txd->at = txd->dsg_list.next;
+	s3c24xx_dma_start_next_sg(s3cchan, txd);
+}
+
+static void s3c24xx_dma_free_txd_list(struct s3c24xx_dma_engine *s3cdma,
+				struct s3c24xx_dma_chan *s3cchan)
+{
+	LIST_HEAD(head);
+
+	vchan_get_all_descriptors(&s3cchan->vc, &head);
+	vchan_dma_desc_free_list(&s3cchan->vc, &head);
+}
+
+/*
+ * Try to allocate a physical channel.  When successful, assign it to
+ * this virtual channel, and initiate the next descriptor.  The
+ * virtual channel lock must be held at this point.
+ */
+static void s3c24xx_dma_phy_alloc_and_start(struct s3c24xx_dma_chan *s3cchan)
+{
+	struct s3c24xx_dma_engine *s3cdma = s3cchan->host;
+	struct s3c24xx_dma_phy *phy;
+
+	phy = s3c24xx_dma_get_phy(s3cchan);
+	if (!phy) {
+		dev_dbg(&s3cdma->pdev->dev, "no physical channel available for xfer on %s\n",
+			s3cchan->name);
+		s3cchan->state = S3C24XX_DMA_CHAN_WAITING;
+		return;
+	}
+
+	dev_dbg(&s3cdma->pdev->dev, "allocated physical channel %d for xfer on %s\n",
+		phy->id, s3cchan->name);
+
+	s3cchan->phy = phy;
+	s3cchan->state = S3C24XX_DMA_CHAN_RUNNING;
+
+	s3c24xx_dma_start_next_txd(s3cchan);
+}
+
+static void s3c24xx_dma_phy_reassign_start(struct s3c24xx_dma_phy *phy,
+	struct s3c24xx_dma_chan *s3cchan)
+{
+	struct s3c24xx_dma_engine *s3cdma = s3cchan->host;
+
+	dev_dbg(&s3cdma->pdev->dev, "reassigned physical channel %d for xfer on %s\n",
+		phy->id, s3cchan->name);
+
+	/*
+	 * We do this without taking the lock; we're really only concerned
+	 * about whether this pointer is NULL or not, and we're guaranteed
+	 * that this will only be called when it _already_ is non-NULL.
+	 */
+	phy->serving = s3cchan;
+	s3cchan->phy = phy;
+	s3cchan->state = S3C24XX_DMA_CHAN_RUNNING;
+	s3c24xx_dma_start_next_txd(s3cchan);
+}
+
+/*
+ * Free a physical DMA channel, potentially reallocating it to another
+ * virtual channel if we have any pending.
+ */
+static void s3c24xx_dma_phy_free(struct s3c24xx_dma_chan *s3cchan)
+{
+	struct s3c24xx_dma_engine *s3cdma = s3cchan->host;
+	struct s3c24xx_dma_chan *p, *next;
+
+retry:
+	next = NULL;
+
+	/* Find a waiting virtual channel for the next transfer. */
+	list_for_each_entry(p, &s3cdma->memcpy.channels, vc.chan.device_node)
+		if (p->state == S3C24XX_DMA_CHAN_WAITING) {
+			next = p;
+			break;
+		}
+
+	if (!next) {
+		list_for_each_entry(p, &s3cdma->slave.channels,
+				    vc.chan.device_node)
+			if (p->state == S3C24XX_DMA_CHAN_WAITING &&
+				      s3c24xx_dma_phy_valid(p, s3cchan->phy)) {
+				next = p;
+				break;
+			}
+	}
+
+	/* Ensure that the physical channel is stopped */
+	s3c24xx_dma_terminate_phy(s3cchan->phy);
+
+	if (next) {
+		bool success;
+
+		/*
+		 * Eww.  We know this isn't going to deadlock
+		 * but lockdep probably doesn't.
+		 */
+		spin_lock(&next->vc.lock);
+		/* Re-check the state now that we have the lock */
+		success = next->state == S3C24XX_DMA_CHAN_WAITING;
+		if (success)
+			s3c24xx_dma_phy_reassign_start(s3cchan->phy, next);
+		spin_unlock(&next->vc.lock);
+
+		/* If the state changed, try to find another channel */
+		if (!success)
+			goto retry;
+	} else {
+		/* No more jobs, so free up the physical channel */
+		s3c24xx_dma_put_phy(s3cchan->phy);
+	}
+
+	s3cchan->phy = NULL;
+	s3cchan->state = S3C24XX_DMA_CHAN_IDLE;
+}
+
+static void s3c24xx_dma_unmap_buffers(struct s3c24xx_txd *txd)
+{
+	struct device *dev = txd->vd.tx.chan->device->dev;
+	struct s3c24xx_sg *dsg;
+
+	if (!(txd->vd.tx.flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
+		if (txd->vd.tx.flags & DMA_COMPL_SRC_UNMAP_SINGLE)
+			list_for_each_entry(dsg, &txd->dsg_list, node)
+				dma_unmap_single(dev, dsg->src_addr, dsg->len,
+						DMA_TO_DEVICE);
+		else {
+			list_for_each_entry(dsg, &txd->dsg_list, node)
+				dma_unmap_page(dev, dsg->src_addr, dsg->len,
+						DMA_TO_DEVICE);
+		}
+	}
+
+	if (!(txd->vd.tx.flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
+		if (txd->vd.tx.flags & DMA_COMPL_DEST_UNMAP_SINGLE)
+			list_for_each_entry(dsg, &txd->dsg_list, node)
+				dma_unmap_single(dev, dsg->dst_addr, dsg->len,
+						DMA_FROM_DEVICE);
+		else
+			list_for_each_entry(dsg, &txd->dsg_list, node)
+				dma_unmap_page(dev, dsg->dst_addr, dsg->len,
+						DMA_FROM_DEVICE);
+	}
+}
+
+static void s3c24xx_dma_desc_free(struct virt_dma_desc *vd)
+{
+	struct s3c24xx_txd *txd = to_s3c24xx_txd(&vd->tx);
+	struct s3c24xx_dma_chan *s3cchan = to_s3c24xx_dma_chan(vd->tx.chan);
+
+	if (!s3cchan->slave)
+		s3c24xx_dma_unmap_buffers(txd);
+
+	s3c24xx_dma_free_txd(txd);
+}
+
+static irqreturn_t s3c24xx_dma_irq(int irq, void *data)
+{
+	struct s3c24xx_dma_phy *phy = data;
+	struct s3c24xx_dma_chan *s3cchan = phy->serving;
+	struct s3c24xx_txd *txd;
+
+	dev_dbg(&phy->host->pdev->dev, "interrupt on channel %d\n", phy->id);
+
+	/*
+	 * Interrupts happen to notify the completion of a transfer and the
+	 * channel should have moved into its stop state already on its own.
+	 * Therefore interrupts on channels not bound to a virtual channel
+	 * should never happen. Nevertheless send a terminate command to the
+	 * channel if the unlikely case happens.
+	 */
+	if (unlikely(!s3cchan)) {
+		dev_err(&phy->host->pdev->dev, "interrupt on unused channel %d\n",
+			phy->id);
+
+		s3c24xx_dma_terminate_phy(phy);
+
+		return IRQ_HANDLED;
+	}
+
+	spin_lock(&s3cchan->vc.lock);
+	txd = s3cchan->at;
+	if (txd) {
+		/* when more sg's are in this txd, start the next one */
+		if (!list_is_last(txd->at, &txd->dsg_list)) {
+			txd->at = txd->at->next;
+			s3c24xx_dma_start_next_sg(s3cchan, txd);
+		} else {
+			s3cchan->at = NULL;
+			vchan_cookie_complete(&txd->vd);
+
+			/*
+			 * And start the next descriptor (if any),
+			 * otherwise free this channel.
+			 */
+			if (vchan_next_desc(&s3cchan->vc))
+				s3c24xx_dma_start_next_txd(s3cchan);
+			else
+				s3c24xx_dma_phy_free(s3cchan);
+		}
+	}
+	spin_unlock(&s3cchan->vc.lock);
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * The DMA ENGINE API
+ */
+
+static int s3c24xx_dma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
+			 unsigned long arg)
+{
+	struct s3c24xx_dma_chan *s3cchan = to_s3c24xx_dma_chan(chan);
+	struct s3c24xx_dma_engine *s3cdma = s3cchan->host;
+	unsigned long flags;
+	int ret = 0;
+
+	spin_lock_irqsave(&s3cchan->vc.lock, flags);
+
+	switch (cmd) {
+	case DMA_SLAVE_CONFIG:
+		ret = s3c24xx_dma_set_runtime_config(s3cchan,
+					      (struct dma_slave_config *)arg);
+		break;
+	case DMA_TERMINATE_ALL:
+		if (!s3cchan->phy && !s3cchan->at) {
+			dev_err(&s3cdma->pdev->dev, "trying to terminate already stopped channel %d\n",
+				s3cchan->id);
+			ret = -EINVAL;
+			break;
+		}
+
+		s3cchan->state = S3C24XX_DMA_CHAN_IDLE;
+
+		 /* Mark physical channel as free */
+		if (s3cchan->phy)
+			s3c24xx_dma_phy_free(s3cchan);
+
+		/* Dequeue current job */
+		if (s3cchan->at) {
+			s3c24xx_dma_desc_free(&s3cchan->at->vd);
+			s3cchan->at = NULL;
+		}
+
+		/* Dequeue jobs not yet fired as well */
+		s3c24xx_dma_free_txd_list(s3cdma, s3cchan);
+		break;
+	default:
+		/* Unknown command */
+		ret = -ENXIO;
+		break;
+	}
+
+	spin_unlock_irqrestore(&s3cchan->vc.lock, flags);
+
+	return ret;
+}
+
+static int s3c24xx_dma_alloc_chan_resources(struct dma_chan *chan)
+{
+	return 0;
+}
+
+static void s3c24xx_dma_free_chan_resources(struct dma_chan *chan)
+{
+	/* Ensure all queued descriptors are freed */
+	vchan_free_chan_resources(to_virt_chan(chan));
+}
+
+static enum dma_status s3c24xx_dma_tx_status(struct dma_chan *chan,
+		dma_cookie_t cookie, struct dma_tx_state *txstate)
+{
+	struct s3c24xx_dma_chan *s3cchan = to_s3c24xx_dma_chan(chan);
+	struct s3c24xx_txd *txd;
+	struct s3c24xx_sg *dsg;
+	struct virt_dma_desc *vd;
+	unsigned long flags;
+	enum dma_status ret;
+	size_t bytes = 0;
+
+	spin_lock_irqsave(&s3cchan->vc.lock, flags);
+	ret = dma_cookie_status(chan, cookie, txstate);
+	if (ret == DMA_SUCCESS) {
+		spin_unlock_irqrestore(&s3cchan->vc.lock, flags);
+		return ret;
+	}
+
+	/*
+	 * There's no point calculating the residue if there's
+	 * no txstate to store the value.
+	 */
+	if (!txstate) {
+		spin_unlock_irqrestore(&s3cchan->vc.lock, flags);
+		return ret;
+	}
+
+	vd = vchan_find_desc(&s3cchan->vc, cookie);
+	if (vd) {
+		/* On the issued list, so hasn't been processed yet */
+		txd = to_s3c24xx_txd(&vd->tx);
+
+		list_for_each_entry(dsg, &txd->dsg_list, node)
+			bytes += dsg->len;
+	} else {
+		/*
+		 * Currently running, so sum over the pending sg's and
+		 * the currently active one.
+		 */
+		txd = s3cchan->at;
+
+		dsg = list_entry(txd->at, struct s3c24xx_sg, node);
+		list_for_each_entry_from(dsg, &txd->dsg_list, node)
+			bytes += dsg->len;
+
+		bytes += s3c24xx_dma_getbytes_chan(s3cchan);
+	}
+	spin_unlock_irqrestore(&s3cchan->vc.lock, flags);
+
+	/*
+	 * This cookie not complete yet
+	 * Get number of bytes left in the active transactions and queue
+	 */
+	dma_set_residue(txstate, bytes);
+
+	/* Whether waiting or running, we're in progress */
+	return ret;
+}
+
+/*
+ * Initialize a descriptor to be used by memcpy submit
+ */
+static struct dma_async_tx_descriptor *s3c24xx_dma_prep_memcpy(
+		struct dma_chan *chan, dma_addr_t dest, dma_addr_t src,
+		size_t len, unsigned long flags)
+{
+	struct s3c24xx_dma_chan *s3cchan = to_s3c24xx_dma_chan(chan);
+	struct s3c24xx_dma_engine *s3cdma = s3cchan->host;
+	struct s3c24xx_txd *txd;
+	struct s3c24xx_sg *dsg;
+	int src_mod, dest_mod;
+
+	dev_dbg(&s3cdma->pdev->dev, "prepare memcpy of %d bytes from %s\n",
+			len, s3cchan->name);
+
+	if ((len & S3C24XX_DCON_TC_MASK) != len) {
+		dev_err(&s3cdma->pdev->dev, "memcpy size %d to large\n", len);
+		return NULL;
+	}
+
+	txd = s3c24xx_dma_get_txd();
+	if (!txd)
+		return NULL;
+
+	dsg = kzalloc(sizeof(*dsg), GFP_NOWAIT);
+	if (!dsg) {
+		s3c24xx_dma_free_txd(txd);
+		return NULL;
+	}
+	list_add_tail(&dsg->node, &txd->dsg_list);
+
+	dsg->src_addr = src;
+	dsg->dst_addr = dest;
+	dsg->len = len;
+
+	/*
+	 * Determine a suitable transfer width.
+	 * The DMA controller cannot fetch/store information which is not
+	 * naturally aligned on the bus, i.e., a 4 byte fetch must start at
+	 * an address divisible by 4 - more generally addr % width must be 0.
+	 */
+	src_mod = src % 4;
+	dest_mod = dest % 4;
+	switch (len % 4) {
+	case 0:
+		txd->width = (src_mod == 0 && dest_mod == 0) ? 4 : 1;
+		break;
+	case 2:
+		txd->width = ((src_mod == 2 || src_mod == 0) &&
+			      (dest_mod == 2 || dest_mod == 0)) ? 2 : 1;
+		break;
+	default:
+		txd->width = 1;
+		break;
+	}
+
+	txd->disrcc = S3C24XX_DISRCC_LOC_AHB | S3C24XX_DISRCC_INC_INCREMENT;
+	txd->didstc = S3C24XX_DIDSTC_LOC_AHB | S3C24XX_DIDSTC_INC_INCREMENT;
+	txd->dcon |= S3C24XX_DCON_DEMAND | S3C24XX_DCON_SYNC_HCLK |
+		     S3C24XX_DCON_SERV_WHOLE;
+
+	return vchan_tx_prep(&s3cchan->vc, &txd->vd, flags);
+}
+
+static struct dma_async_tx_descriptor *s3c24xx_dma_prep_slave_sg(
+		struct dma_chan *chan, struct scatterlist *sgl,
+		unsigned int sg_len, enum dma_transfer_direction direction,
+		unsigned long flags, void *context)
+{
+	struct s3c24xx_dma_chan *s3cchan = to_s3c24xx_dma_chan(chan);
+	struct s3c24xx_dma_engine *s3cdma = s3cchan->host;
+	const struct s3c24xx_dma_platdata *pdata = s3cdma->pdata;
+	struct s3c24xx_dma_channel *cdata = &pdata->channels[s3cchan->id];
+	struct s3c24xx_txd *txd;
+	struct s3c24xx_sg *dsg;
+	struct scatterlist *sg;
+	dma_addr_t slave_addr;
+	u32 hwcfg = 0;
+	int tmp;
+
+	dev_dbg(&s3cdma->pdev->dev, "prepare transaction of %d bytes from %s\n",
+			sg_dma_len(sgl), s3cchan->name);
+
+	txd = s3c24xx_dma_get_txd();
+	if (!txd)
+		return NULL;
+
+	if (cdata->handshake)
+		txd->dcon |= S3C24XX_DCON_HANDSHAKE;
+
+	switch (cdata->bus) {
+	case S3C24XX_DMA_APB:
+		txd->dcon |= S3C24XX_DCON_SYNC_PCLK;
+		hwcfg |= S3C24XX_DISRCC_LOC_APB;
+		break;
+	case S3C24XX_DMA_AHB:
+		txd->dcon |= S3C24XX_DCON_SYNC_HCLK;
+		hwcfg |= S3C24XX_DISRCC_LOC_AHB;
+		break;
+	}
+
+	/*
+	 * Always assume our peripheral desintation is a fixed
+	 * address in memory.
+	 */
+	hwcfg |= S3C24XX_DISRCC_INC_FIXED;
+
+	/*
+	 * Individual dma operations are requested by the slave,
+	 * so serve only single atomic operations (S3C24XX_DCON_SERV_SINGLE).
+	 */
+	txd->dcon |= S3C24XX_DCON_SERV_SINGLE;
+
+	if (direction == DMA_MEM_TO_DEV) {
+		txd->disrcc = S3C24XX_DISRCC_LOC_AHB |
+			      S3C24XX_DISRCC_INC_INCREMENT;
+		txd->didstc = hwcfg;
+		slave_addr = s3cchan->cfg.dst_addr;
+		txd->width = s3cchan->cfg.dst_addr_width;
+	} else if (direction == DMA_DEV_TO_MEM) {
+		txd->disrcc = hwcfg;
+		txd->didstc = S3C24XX_DIDSTC_LOC_AHB |
+			      S3C24XX_DIDSTC_INC_INCREMENT;
+		slave_addr = s3cchan->cfg.src_addr;
+		txd->width = s3cchan->cfg.src_addr_width;
+	} else {
+		s3c24xx_dma_free_txd(txd);
+		dev_err(&s3cdma->pdev->dev,
+			"direction %d unsupported\n", direction);
+		return NULL;
+	}
+
+	for_each_sg(sgl, sg, sg_len, tmp) {
+		dsg = kzalloc(sizeof(*dsg), GFP_NOWAIT);
+		if (!dsg) {
+			s3c24xx_dma_free_txd(txd);
+			return NULL;
+		}
+		list_add_tail(&dsg->node, &txd->dsg_list);
+
+		dsg->len = sg_dma_len(sg);
+		if (direction == DMA_MEM_TO_DEV) {
+			dsg->src_addr = sg_dma_address(sg);
+			dsg->dst_addr = slave_addr;
+		} else { /* DMA_DEV_TO_MEM */
+			dsg->src_addr = slave_addr;
+			dsg->dst_addr = sg_dma_address(sg);
+		}
+		break;
+	}
+
+	return vchan_tx_prep(&s3cchan->vc, &txd->vd, flags);
+}
+
+/*
+ * Slave transactions callback to the slave device to allow
+ * synchronization of slave DMA signals with the DMAC enable
+ */
+static void s3c24xx_dma_issue_pending(struct dma_chan *chan)
+{
+	struct s3c24xx_dma_chan *s3cchan = to_s3c24xx_dma_chan(chan);
+	unsigned long flags;
+
+	spin_lock_irqsave(&s3cchan->vc.lock, flags);
+	if (vchan_issue_pending(&s3cchan->vc)) {
+		if (!s3cchan->phy && s3cchan->state != S3C24XX_DMA_CHAN_WAITING)
+			s3c24xx_dma_phy_alloc_and_start(s3cchan);
+	}
+	spin_unlock_irqrestore(&s3cchan->vc.lock, flags);
+}
+
+/*
+ * Bringup and teardown
+ */
+
+/*
+ * Initialise the DMAC memcpy/slave channels.
+ * Make a local wrapper to hold required data
+ */
+static int s3c24xx_dma_init_virtual_channels(struct s3c24xx_dma_engine *s3cdma,
+		struct dma_device *dmadev, unsigned int channels, bool slave)
+{
+	struct s3c24xx_dma_chan *chan;
+	int i;
+
+	INIT_LIST_HEAD(&dmadev->channels);
+
+	/*
+	 * Register as many many memcpy as we have physical channels,
+	 * we won't always be able to use all but the code will have
+	 * to cope with that situation.
+	 */
+	for (i = 0; i < channels; i++) {
+		chan = devm_kzalloc(dmadev->dev, sizeof(*chan), GFP_KERNEL);
+		if (!chan) {
+			dev_err(dmadev->dev,
+				"%s no memory for channel\n", __func__);
+			return -ENOMEM;
+		}
+
+		chan->id = i;
+		chan->host = s3cdma;
+		chan->state = S3C24XX_DMA_CHAN_IDLE;
+
+		if (slave) {
+			chan->slave = true;
+			chan->name = kasprintf(GFP_KERNEL, "slave%d", i);
+			if (!chan->name)
+				return -ENOMEM;
+		} else {
+			chan->name = kasprintf(GFP_KERNEL, "memcpy%d", i);
+			if (!chan->name)
+				return -ENOMEM;
+		}
+		dev_dbg(dmadev->dev,
+			 "initialize virtual channel \"%s\"\n",
+			 chan->name);
+
+		chan->vc.desc_free = s3c24xx_dma_desc_free;
+		vchan_init(&chan->vc, dmadev);
+	}
+	dev_info(dmadev->dev, "initialized %d virtual %s channels\n",
+		 i, slave ? "slave" : "memcpy");
+	return i;
+}
+
+static void s3c24xx_dma_free_virtual_channels(struct dma_device *dmadev)
+{
+	struct s3c24xx_dma_chan *chan = NULL;
+	struct s3c24xx_dma_chan *next;
+
+	list_for_each_entry_safe(chan,
+				 next, &dmadev->channels, vc.chan.device_node)
+		list_del(&chan->vc.chan.device_node);
+}
+
+/* s3c2412 and s3c2413 have a 0x40 stride and dmareqsel mechanism */
+static struct soc_data soc_s3c2412 = {
+	.stride = 0x40,
+	.has_reqsel = true,
+	.has_clocks = true,
+};
+
+/* s3c2443 and following have a 0x100 stride and dmareqsel mechanism */
+static struct soc_data soc_s3c2443 = {
+	.stride = 0x100,
+	.has_reqsel = true,
+	.has_clocks = true,
+};
+
+static struct platform_device_id s3c24xx_dma_driver_ids[] = {
+	{
+		.name		= "s3c2412-dma",
+		.driver_data	= (kernel_ulong_t)&soc_s3c2412,
+	}, {
+		.name		= "s3c2443-dma",
+		.driver_data	= (kernel_ulong_t)&soc_s3c2443,
+	},
+	{ },
+};
+
+static struct soc_data *s3c24xx_dma_get_soc_data(struct platform_device *pdev)
+{
+	return (struct soc_data *)
+			 platform_get_device_id(pdev)->driver_data;
+}
+
+static int s3c24xx_dma_probe(struct platform_device *pdev)
+{
+	const struct s3c24xx_dma_platdata *pdata = dev_get_platdata(&pdev->dev);
+	struct s3c24xx_dma_engine *s3cdma;
+	struct soc_data *sdata;
+	struct resource *res;
+	int ret;
+	int i;
+
+	if (!pdata) {
+		dev_err(&pdev->dev, "platform data missing\n");
+		return -ENODEV;
+	}
+
+	/* Basic sanity check */
+	if (pdata->num_phy_channels > MAX_DMA_CHANNELS) {
+		dev_err(&pdev->dev, "to many dma channels %d, max %d\n",
+			pdata->num_phy_channels, MAX_DMA_CHANNELS);
+		return -EINVAL;
+	}
+
+	sdata = s3c24xx_dma_get_soc_data(pdev);
+	if (!sdata)
+		return -EINVAL;
+
+	s3cdma = devm_kzalloc(&pdev->dev, sizeof(*s3cdma), GFP_KERNEL);
+	if (!s3cdma)
+		return -ENOMEM;
+
+	s3cdma->pdev = pdev;
+	s3cdma->pdata = pdata;
+	s3cdma->sdata = sdata;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	s3cdma->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(s3cdma->base))
+		return PTR_ERR(s3cdma->base);
+
+	s3cdma->phy_chans = devm_kzalloc(&pdev->dev,
+					      sizeof(struct s3c24xx_dma_phy) *
+							pdata->num_phy_channels,
+					      GFP_KERNEL);
+	if (!s3cdma->phy_chans)
+		return -ENOMEM;
+
+	/* aquire irqs and clocks for all physical channels */
+	for (i = 0; i < pdata->num_phy_channels; i++) {
+		struct s3c24xx_dma_phy *phy = &s3cdma->phy_chans[i];
+		char clk_name[6];
+
+		phy->id = i;
+		phy->base = s3cdma->base + (i * sdata->stride);
+		phy->host = s3cdma;
+
+		phy->irq = platform_get_irq(pdev, i);
+		if (phy->irq < 0) {
+			dev_err(&pdev->dev, "failed to get irq %d, err %d\n",
+				i, phy->irq);
+			continue;
+		}
+
+		ret = devm_request_irq(&pdev->dev, phy->irq, s3c24xx_dma_irq,
+				       0, pdev->name, phy);
+		if (ret) {
+			dev_err(&pdev->dev, "Unable to request irq for channel %d, error %d\n",
+				i, ret);
+			continue;
+		}
+
+		if (sdata->has_clocks) {
+			sprintf(clk_name, "dma.%d", i);
+			phy->clk = devm_clk_get(&pdev->dev, clk_name);
+			if (IS_ERR(phy->clk) && sdata->has_clocks) {
+				dev_err(&pdev->dev, "unable to aquire clock for channel %d, error %lu",
+					i, PTR_ERR(phy->clk));
+				continue;
+			}
+
+			ret = clk_prepare(phy->clk);
+			if (ret) {
+				dev_err(&pdev->dev, "clock for phy %d failed, error %d\n",
+					i, ret);
+				continue;
+			}
+		}
+
+		spin_lock_init(&phy->lock);
+		phy->valid = true;
+
+		dev_dbg(&pdev->dev, "physical channel %d is %s\n",
+			i, s3c24xx_dma_phy_busy(phy) ? "BUSY" : "FREE");
+	}
+
+	/* Initialize memcpy engine */
+	dma_cap_set(DMA_MEMCPY, s3cdma->memcpy.cap_mask);
+	dma_cap_set(DMA_PRIVATE, s3cdma->memcpy.cap_mask);
+	s3cdma->memcpy.dev = &pdev->dev;
+	s3cdma->memcpy.device_alloc_chan_resources =
+					s3c24xx_dma_alloc_chan_resources;
+	s3cdma->memcpy.device_free_chan_resources =
+					s3c24xx_dma_free_chan_resources;
+	s3cdma->memcpy.device_prep_dma_memcpy = s3c24xx_dma_prep_memcpy;
+	s3cdma->memcpy.device_tx_status = s3c24xx_dma_tx_status;
+	s3cdma->memcpy.device_issue_pending = s3c24xx_dma_issue_pending;
+	s3cdma->memcpy.device_control = s3c24xx_dma_control;
+
+	/* Initialize slave engine for SoC internal dedicated peripherals */
+	dma_cap_set(DMA_SLAVE, s3cdma->slave.cap_mask);
+	dma_cap_set(DMA_PRIVATE, s3cdma->slave.cap_mask);
+	s3cdma->slave.dev = &pdev->dev;
+	s3cdma->slave.device_alloc_chan_resources =
+					s3c24xx_dma_alloc_chan_resources;
+	s3cdma->slave.device_free_chan_resources =
+					s3c24xx_dma_free_chan_resources;
+	s3cdma->slave.device_tx_status = s3c24xx_dma_tx_status;
+	s3cdma->slave.device_issue_pending = s3c24xx_dma_issue_pending;
+	s3cdma->slave.device_prep_slave_sg = s3c24xx_dma_prep_slave_sg;
+	s3cdma->slave.device_control = s3c24xx_dma_control;
+
+	/* Register as many memcpy channels as there are physical channels */
+	ret = s3c24xx_dma_init_virtual_channels(s3cdma, &s3cdma->memcpy,
+						pdata->num_phy_channels, false);
+	if (ret <= 0) {
+		dev_warn(&pdev->dev,
+			 "%s failed to enumerate memcpy channels - %d\n",
+			 __func__, ret);
+		goto err_memcpy;
+	}
+
+	/* Register slave channels */
+	ret = s3c24xx_dma_init_virtual_channels(s3cdma, &s3cdma->slave,
+				pdata->num_channels, true);
+	if (ret <= 0) {
+		dev_warn(&pdev->dev,
+			"%s failed to enumerate slave channels - %d\n",
+				__func__, ret);
+		goto err_slave;
+	}
+
+	ret = dma_async_device_register(&s3cdma->memcpy);
+	if (ret) {
+		dev_warn(&pdev->dev,
+			"%s failed to register memcpy as an async device - %d\n",
+			__func__, ret);
+		goto err_memcpy_reg;
+	}
+
+	ret = dma_async_device_register(&s3cdma->slave);
+	if (ret) {
+		dev_warn(&pdev->dev,
+			"%s failed to register slave as an async device - %d\n",
+			__func__, ret);
+		goto err_slave_reg;
+	}
+
+	platform_set_drvdata(pdev, s3cdma);
+	dev_info(&pdev->dev, "Loaded dma driver with %d physical channels\n",
+		 pdata->num_phy_channels);
+
+	return 0;
+
+err_slave_reg:
+	dma_async_device_unregister(&s3cdma->memcpy);
+err_memcpy_reg:
+	s3c24xx_dma_free_virtual_channels(&s3cdma->slave);
+err_slave:
+	s3c24xx_dma_free_virtual_channels(&s3cdma->memcpy);
+err_memcpy:
+	if (sdata->has_clocks)
+		for (i = 0; i < pdata->num_phy_channels; i++) {
+			struct s3c24xx_dma_phy *phy = &s3cdma->phy_chans[i];
+			if (phy->valid)
+				clk_unprepare(phy->clk);
+		}
+
+	return ret;
+}
+
+static int s3c24xx_dma_remove(struct platform_device *pdev)
+{
+	const struct s3c24xx_dma_platdata *pdata = dev_get_platdata(&pdev->dev);
+	struct s3c24xx_dma_engine *s3cdma = platform_get_drvdata(pdev);
+	struct soc_data *sdata = s3c24xx_dma_get_soc_data(pdev);
+	int i;
+
+	dma_async_device_unregister(&s3cdma->slave);
+	dma_async_device_unregister(&s3cdma->memcpy);
+
+	s3c24xx_dma_free_virtual_channels(&s3cdma->slave);
+	s3c24xx_dma_free_virtual_channels(&s3cdma->memcpy);
+
+	if (sdata->has_clocks)
+		for (i = 0; i < pdata->num_phy_channels; i++) {
+			struct s3c24xx_dma_phy *phy = &s3cdma->phy_chans[i];
+			if (phy->valid)
+				clk_unprepare(phy->clk);
+		}
+
+	return 0;
+}
+
+static struct platform_driver s3c24xx_dma_driver = {
+	.driver		= {
+		.name	= "s3c24xx-dma",
+		.owner	= THIS_MODULE,
+	},
+	.id_table	= s3c24xx_dma_driver_ids,
+	.probe		= s3c24xx_dma_probe,
+	.remove		= s3c24xx_dma_remove,
+};
+
+module_platform_driver(s3c24xx_dma_driver);
+
+bool s3c24xx_dma_filter(struct dma_chan *chan, void *param)
+{
+	struct s3c24xx_dma_chan *s3cchan;
+
+	if (chan->device->dev->driver != &s3c24xx_dma_driver.driver)
+		return false;
+
+	s3cchan = to_s3c24xx_dma_chan(chan);
+
+	return s3cchan->id == (int)param;
+}
+EXPORT_SYMBOL(s3c24xx_dma_filter);
+
+MODULE_DESCRIPTION("S3C24XX DMA Driver");
+MODULE_AUTHOR("Heiko Stuebner");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/platform_data/dma-s3c24xx.h b/include/linux/platform_data/dma-s3c24xx.h
new file mode 100644
index 000000000000..5a0cfffe3bbb
--- /dev/null
+++ b/include/linux/platform_data/dma-s3c24xx.h
@@ -0,0 +1,43 @@
+/*
+ * S3C24XX DMA handling
+ *
+ * Copyright (c) 2013 Heiko Stuebner <heiko@sntech.de>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+enum s3c24xx_dma_bus {
+	S3C24XX_DMA_APB,
+	S3C24XX_DMA_AHB,
+};
+
+/**
+ * @bus: on which bus does the peripheral reside - AHB or APB.
+ * @handshake: is a handshake with the peripheral necessary
+ * @chansel: channel selection information, depending on variant; reqsel for
+ *	     s3c2443 and later and channel-selection map for earlier SoCs
+ *	     see CHANSEL doc in s3c2443-dma.c
+ */
+struct s3c24xx_dma_channel {
+	enum s3c24xx_dma_bus bus;
+	bool handshake;
+	u16 chansel;
+};
+
+/**
+ * struct s3c24xx_dma_platdata - platform specific settings
+ * @num_phy_channels: number of physical channels
+ * @channels: array of virtual channel descriptions
+ * @num_channels: number of virtual channels
+ */
+struct s3c24xx_dma_platdata {
+	int num_phy_channels;
+	struct s3c24xx_dma_channel *channels;
+	int num_channels;
+};
+
+struct dma_chan;
+bool s3c24xx_dma_filter(struct dma_chan *chan, void *param);
-- 
cgit 


From f2dda07db68d2bbe91bc9985280f0586c9d25523 Mon Sep 17 00:00:00 2001
From: Heiko Stuebner <heiko@sntech.de>
Date: Tue, 8 Oct 2013 06:42:10 +0900
Subject: ARM: S3C24XX: add platform-devices for new dma driver for s3c2412 and
 s3c2443

This includes defining the mapping for the request sources.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/mach-s3c24xx/common.c        | 106 ++++++++++++++++++++++++++++++++++
 arch/arm/mach-s3c24xx/common.h        |   3 +
 arch/arm/mach-s3c24xx/mach-jive.c     |   1 +
 arch/arm/mach-s3c24xx/mach-smdk2413.c |   1 +
 arch/arm/mach-s3c24xx/mach-smdk2416.c |   1 +
 arch/arm/mach-s3c24xx/mach-smdk2443.c |   1 +
 arch/arm/mach-s3c24xx/mach-vstms.c    |   1 +
 7 files changed, 114 insertions(+)

diff --git a/arch/arm/mach-s3c24xx/common.c b/arch/arm/mach-s3c24xx/common.c
index 457261c98433..bdcb29f4ea31 100644
--- a/arch/arm/mach-s3c24xx/common.c
+++ b/arch/arm/mach-s3c24xx/common.c
@@ -31,6 +31,7 @@
 #include <linux/platform_device.h>
 #include <linux/delay.h>
 #include <linux/io.h>
+#include <linux/platform_data/dma-s3c24xx.h>
 
 #include <mach/hardware.h>
 #include <mach/regs-clock.h>
@@ -44,6 +45,7 @@
 
 #include <mach/regs-gpio.h>
 #include <plat/regs-serial.h>
+#include <mach/dma.h>
 
 #include <plat/cpu.h>
 #include <plat/devs.h>
@@ -329,3 +331,107 @@ void __init_or_cpufreq s3c24xx_setup_clocks(unsigned long fclk,
 	clk_p.rate = pclk;
 	clk_f.rate = fclk;
 }
+
+#if defined(CONFIG_CPU_S3C2410) || defined(CONFIG_CPU_S3C2412) || \
+	defined(CONFIG_CPU_S3C2440) || defined(CONFIG_CPU_S3C2442)
+static struct resource s3c2410_dma_resource[] = {
+	[0] = DEFINE_RES_MEM(S3C24XX_PA_DMA, S3C24XX_SZ_DMA),
+	[1] = DEFINE_RES_IRQ(IRQ_DMA0),
+	[2] = DEFINE_RES_IRQ(IRQ_DMA1),
+	[3] = DEFINE_RES_IRQ(IRQ_DMA2),
+	[4] = DEFINE_RES_IRQ(IRQ_DMA3),
+};
+#endif
+
+#ifdef CONFIG_CPU_S3C2412
+static struct s3c24xx_dma_channel s3c2412_dma_channels[DMACH_MAX] = {
+	[DMACH_XD0] = { S3C24XX_DMA_AHB, true, 17 },
+	[DMACH_XD1] = { S3C24XX_DMA_AHB, true, 18 },
+	[DMACH_SDI] = { S3C24XX_DMA_APB, false, 10 },
+	[DMACH_SPI0_RX] = { S3C24XX_DMA_APB, true, 1 },
+	[DMACH_SPI0_TX] = { S3C24XX_DMA_APB, true, 0 },
+	[DMACH_SPI1_RX] = { S3C24XX_DMA_APB, true, 3 },
+	[DMACH_SPI1_TX] = { S3C24XX_DMA_APB, true, 2 },
+	[DMACH_UART0] = { S3C24XX_DMA_APB, true, 19 },
+	[DMACH_UART1] = { S3C24XX_DMA_APB, true, 21 },
+	[DMACH_UART2] = { S3C24XX_DMA_APB, true, 23 },
+	[DMACH_UART0_SRC2] = { S3C24XX_DMA_APB, true, 20 },
+	[DMACH_UART1_SRC2] = { S3C24XX_DMA_APB, true, 22 },
+	[DMACH_UART2_SRC2] = { S3C24XX_DMA_APB, true, 24 },
+	[DMACH_TIMER] = { S3C24XX_DMA_APB, true, 9 },
+	[DMACH_I2S_IN] = { S3C24XX_DMA_APB, true, 5 },
+	[DMACH_I2S_OUT] = { S3C24XX_DMA_APB, true, 4 },
+	[DMACH_USB_EP1] = { S3C24XX_DMA_APB, true, 13 },
+	[DMACH_USB_EP2] = { S3C24XX_DMA_APB, true, 14 },
+	[DMACH_USB_EP3] = { S3C24XX_DMA_APB, true, 15 },
+	[DMACH_USB_EP4] = { S3C24XX_DMA_APB, true, 16 },
+};
+
+static struct s3c24xx_dma_platdata s3c2412_dma_platdata = {
+	.num_phy_channels = 4,
+	.channels = s3c2412_dma_channels,
+	.num_channels = DMACH_MAX,
+};
+
+struct platform_device s3c2412_device_dma = {
+	.name		= "s3c2412-dma",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(s3c2410_dma_resource),
+	.resource	= s3c2410_dma_resource,
+	.dev	= {
+		.platform_data	= &s3c2412_dma_platdata,
+	},
+};
+#endif
+
+#if defined(CONFIG_CPUS_3C2443) || defined(CONFIG_CPU_S3C2416)
+static struct resource s3c2443_dma_resource[] = {
+	[0] = DEFINE_RES_MEM(S3C24XX_PA_DMA, S3C24XX_SZ_DMA),
+	[1] = DEFINE_RES_IRQ(IRQ_S3C2443_DMA0),
+	[2] = DEFINE_RES_IRQ(IRQ_S3C2443_DMA1),
+	[3] = DEFINE_RES_IRQ(IRQ_S3C2443_DMA2),
+	[4] = DEFINE_RES_IRQ(IRQ_S3C2443_DMA3),
+	[5] = DEFINE_RES_IRQ(IRQ_S3C2443_DMA4),
+	[6] = DEFINE_RES_IRQ(IRQ_S3C2443_DMA5),
+};
+
+static struct s3c24xx_dma_channel s3c2443_dma_channels[DMACH_MAX] = {
+	[DMACH_XD0] = { S3C24XX_DMA_AHB, true, 17 },
+	[DMACH_XD1] = { S3C24XX_DMA_AHB, true, 18 },
+	[DMACH_SDI] = { S3C24XX_DMA_APB, false, 10 },
+	[DMACH_SPI0_RX] = { S3C24XX_DMA_APB, true, 1 },
+	[DMACH_SPI0_TX] = { S3C24XX_DMA_APB, true, 0 },
+	[DMACH_SPI1_RX] = { S3C24XX_DMA_APB, true, 3 },
+	[DMACH_SPI1_TX] = { S3C24XX_DMA_APB, true, 2 },
+	[DMACH_UART0] = { S3C24XX_DMA_APB, true, 19 },
+	[DMACH_UART1] = { S3C24XX_DMA_APB, true, 21 },
+	[DMACH_UART2] = { S3C24XX_DMA_APB, true, 23 },
+	[DMACH_UART3] = { S3C24XX_DMA_APB, true, 25 },
+	[DMACH_UART0_SRC2] = { S3C24XX_DMA_APB, true, 20 },
+	[DMACH_UART1_SRC2] = { S3C24XX_DMA_APB, true, 22 },
+	[DMACH_UART2_SRC2] = { S3C24XX_DMA_APB, true, 24 },
+	[DMACH_UART3_SRC2] = { S3C24XX_DMA_APB, true, 26 },
+	[DMACH_TIMER] = { S3C24XX_DMA_APB, true, 9 },
+	[DMACH_I2S_IN] = { S3C24XX_DMA_APB, true, 5 },
+	[DMACH_I2S_OUT] = { S3C24XX_DMA_APB, true, 4 },
+	[DMACH_PCM_IN] = { S3C24XX_DMA_APB, true, 28 },
+	[DMACH_PCM_OUT] = { S3C24XX_DMA_APB, true, 27 },
+	[DMACH_MIC_IN] = { S3C24XX_DMA_APB, true, 29 },
+};
+
+static struct s3c24xx_dma_platdata s3c2443_dma_platdata = {
+	.num_phy_channels = 6,
+	.channels = s3c2443_dma_channels,
+	.num_channels = DMACH_MAX,
+};
+
+struct platform_device s3c2443_device_dma = {
+	.name		= "s3c2443-dma",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(s3c2443_dma_resource),
+	.resource	= s3c2443_dma_resource,
+	.dev	= {
+		.platform_data	= &s3c2443_dma_platdata,
+	},
+};
+#endif
diff --git a/arch/arm/mach-s3c24xx/common.h b/arch/arm/mach-s3c24xx/common.h
index 84b280654f4c..fe071893275f 100644
--- a/arch/arm/mach-s3c24xx/common.h
+++ b/arch/arm/mach-s3c24xx/common.h
@@ -109,4 +109,7 @@ extern void s3c2443_init_irq(void);
 
 extern struct syscore_ops s3c24xx_irq_syscore_ops;
 
+extern struct platform_device s3c2412_device_dma;
+extern struct platform_device s3c2443_device_dma;
+
 #endif /* __ARCH_ARM_MACH_S3C24XX_COMMON_H */
diff --git a/arch/arm/mach-s3c24xx/mach-jive.c b/arch/arm/mach-s3c24xx/mach-jive.c
index a45fcd8ccf79..43c23e220f5b 100644
--- a/arch/arm/mach-s3c24xx/mach-jive.c
+++ b/arch/arm/mach-s3c24xx/mach-jive.c
@@ -466,6 +466,7 @@ static struct platform_device *jive_devices[] __initdata = {
 	&jive_device_wm8750,
 	&s3c_device_nand,
 	&s3c_device_usbgadget,
+	&s3c2412_device_dma,
 };
 
 static struct s3c2410_udc_mach_info jive_udc_cfg __initdata = {
diff --git a/arch/arm/mach-s3c24xx/mach-smdk2413.c b/arch/arm/mach-s3c24xx/mach-smdk2413.c
index 8146e920f10d..c9d31ef28dd1 100644
--- a/arch/arm/mach-s3c24xx/mach-smdk2413.c
+++ b/arch/arm/mach-s3c24xx/mach-smdk2413.c
@@ -89,6 +89,7 @@ static struct platform_device *smdk2413_devices[] __initdata = {
 	&s3c_device_i2c0,
 	&s3c_device_iis,
 	&s3c_device_usbgadget,
+	&s3c2412_device_dma,
 };
 
 static void __init smdk2413_fixup(struct tag *tags, char **cmdline,
diff --git a/arch/arm/mach-s3c24xx/mach-smdk2416.c b/arch/arm/mach-s3c24xx/mach-smdk2416.c
index cb46847c66b4..f88e672ad1e4 100644
--- a/arch/arm/mach-s3c24xx/mach-smdk2416.c
+++ b/arch/arm/mach-s3c24xx/mach-smdk2416.c
@@ -215,6 +215,7 @@ static struct platform_device *smdk2416_devices[] __initdata = {
 	&s3c_device_hsmmc0,
 	&s3c_device_hsmmc1,
 	&s3c_device_usb_hsudc,
+	&s3c2443_device_dma,
 };
 
 static void __init smdk2416_map_io(void)
diff --git a/arch/arm/mach-s3c24xx/mach-smdk2443.c b/arch/arm/mach-s3c24xx/mach-smdk2443.c
index 9435c3bef18a..d9933fcc6cc8 100644
--- a/arch/arm/mach-s3c24xx/mach-smdk2443.c
+++ b/arch/arm/mach-s3c24xx/mach-smdk2443.c
@@ -115,6 +115,7 @@ static struct platform_device *smdk2443_devices[] __initdata = {
 #ifdef CONFIG_SND_SOC_SMDK2443_WM9710
 	&s3c_device_ac97,
 #endif
+	&s3c2443_device_dma,
 };
 
 static void __init smdk2443_map_io(void)
diff --git a/arch/arm/mach-s3c24xx/mach-vstms.c b/arch/arm/mach-s3c24xx/mach-vstms.c
index b66588428ec9..f7ec9c550787 100644
--- a/arch/arm/mach-s3c24xx/mach-vstms.c
+++ b/arch/arm/mach-s3c24xx/mach-vstms.c
@@ -126,6 +126,7 @@ static struct platform_device *vstms_devices[] __initdata = {
 	&s3c_device_iis,
 	&s3c_device_rtc,
 	&s3c_device_nand,
+	&s3c2412_device_dma,
 };
 
 static void __init vstms_fixup(struct tag *tags, char **cmdline,
-- 
cgit 


From 7f99ef2284b46f69dfdca690c2b00fa735b32ccc Mon Sep 17 00:00:00 2001
From: Heiko Stuebner <heiko@sntech.de>
Date: Tue, 8 Oct 2013 06:42:11 +0900
Subject: ARM: SAMSUNG: set s3c24xx_dma_filter for s3c64xx-spi0 device

The spi-s3c64xx device is also used on the s3c2416 and s3c2443 SoCs.
The driver also already uses only generic dma-engine operations.

Therefore add another elif to set the s3c24xx filter.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/plat-samsung/devs.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c
index 8ce0ac007eb9..a7b9b9e81c36 100644
--- a/arch/arm/plat-samsung/devs.c
+++ b/arch/arm/plat-samsung/devs.c
@@ -32,6 +32,7 @@
 #include <linux/ioport.h>
 #include <linux/platform_data/s3c-hsudc.h>
 #include <linux/platform_data/s3c-hsotg.h>
+#include <linux/platform_data/dma-s3c24xx.h>
 
 #include <media/s5p_hdmi.h>
 
@@ -1499,8 +1500,10 @@ void __init s3c64xx_spi0_set_platdata(int (*cfg_gpio)(void), int src_clk_nr,
 	pd.num_cs = num_cs;
 	pd.src_clk_nr = src_clk_nr;
 	pd.cfg_gpio = (cfg_gpio) ? cfg_gpio : s3c64xx_spi0_cfg_gpio;
-#ifdef CONFIG_PL330_DMA
+#if defined(CONFIG_PL330_DMA)
 	pd.filter = pl330_filter;
+#elif defined(CONFIG_S3C24XX_DMAC)
+	pd.filter = s3c24xx_dma_filter;
 #endif
 
 	s3c_set_platdata(&pd, sizeof(pd), &s3c64xx_device_spi0);
-- 
cgit 


From 6edf22a429c41bdb59b5aae251e7add4073d3440 Mon Sep 17 00:00:00 2001
From: Rahul Sharma <rahul.sharma@samsung.com>
Date: Tue, 8 Oct 2013 06:49:45 +0900
Subject: of/documentation: update with clock information for exynos hdmi
 subsystem

Adding information about clocks to the binding documentation
for exynos mixer and hdmi.

Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 Documentation/devicetree/bindings/video/exynos_hdmi.txt  | 14 +++++++++++++-
 Documentation/devicetree/bindings/video/exynos_mixer.txt |  4 ++++
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/video/exynos_hdmi.txt b/Documentation/devicetree/bindings/video/exynos_hdmi.txt
index 323983be3c30..50decf8e1b90 100644
--- a/Documentation/devicetree/bindings/video/exynos_hdmi.txt
+++ b/Documentation/devicetree/bindings/video/exynos_hdmi.txt
@@ -12,7 +12,19 @@ Required properties:
 	a) phandle of the gpio controller node.
 	b) pin number within the gpio controller.
 	c) optional flags and pull up/down.
-
+- clocks: list of clock IDs from SoC clock driver.
+	a) hdmi: Gate of HDMI IP bus clock.
+	b) sclk_hdmi: Gate of HDMI special clock.
+	c) sclk_pixel: Pixel special clock, one of the two possible inputs of
+		HDMI clock mux.
+	d) sclk_hdmiphy: HDMI PHY clock output, one of two possible inputs of
+		HDMI clock mux.
+	e) mout_hdmi: It is required by the driver to switch between the 2
+		parents i.e. sclk_pixel and sclk_hdmiphy. If hdmiphy is stable
+		after configuration, parent is set to sclk_hdmiphy else
+		sclk_pixel.
+- clock-names: aliases as per driver requirements for above clock IDs:
+	"hdmi", "sclk_hdmi", "sclk_pixel", "sclk_hdmiphy" and "mout_hdmi".
 Example:
 
 	hdmi {
diff --git a/Documentation/devicetree/bindings/video/exynos_mixer.txt b/Documentation/devicetree/bindings/video/exynos_mixer.txt
index 3334b0a8e343..7bfde9c9d658 100644
--- a/Documentation/devicetree/bindings/video/exynos_mixer.txt
+++ b/Documentation/devicetree/bindings/video/exynos_mixer.txt
@@ -10,6 +10,10 @@ Required properties:
 - reg: physical base address of the mixer and length of memory mapped
 	region.
 - interrupts: interrupt number to the cpu.
+- clocks: list of clock IDs from SoC clock driver.
+	a) mixer: Gate of Mixer IP bus clock.
+	b) sclk_hdmi: HDMI Special clock, one of the two possible inputs of
+               mixer mux.
 
 Example:
 
-- 
cgit 


From 18fe6ef0b1b1396a4ff991664fbf926d72004859 Mon Sep 17 00:00:00 2001
From: Sean Paul <seanpaul@chromium.org>
Date: Tue, 8 Oct 2013 06:49:45 +0900
Subject: ARM: dts: add mixer clocks to mixer node for Exynos5250

This patch adds the mixer clocks to the mixer node in the
exynos 5250 dts file.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/boot/dts/exynos5250.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index c863113eed3f..80a6d08e5044 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -623,6 +623,8 @@
 		compatible = "samsung,exynos5250-mixer";
 		reg = <0x14450000 0x10000>;
 		interrupts = <0 94 0>;
+		clocks = <&clock 343>, <&clock 136>;
+		clock-names = "mixer", "sclk_hdmi";
 	};
 
 	dp_phy: video-phy@10040720 {
-- 
cgit 


From 27c16d19e2ac723fb037c9f6f7994291f8eb3226 Mon Sep 17 00:00:00 2001
From: Rahul Sharma <rahul.sharma@samsung.com>
Date: Tue, 8 Oct 2013 06:49:46 +0900
Subject: ARM: dts: add clocks to hdmi dt node for exynos5250

Fix wrong clock numbers in hdmi dt node. Removed hdmiphy
clock which was a dummy clock earlier and not required now.
Also added mux clock to change the clock parent.

Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/boot/dts/exynos5250.dtsi | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index 80a6d08e5044..7cb5c4b491c8 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -613,10 +613,10 @@
 		compatible = "samsung,exynos4212-hdmi";
 		reg = <0x14530000 0x70000>;
 		interrupts = <0 95 0>;
-		clocks = <&clock 333>, <&clock 136>, <&clock 137>,
-				<&clock 333>, <&clock 333>;
+		clocks = <&clock 344>, <&clock 136>, <&clock 137>,
+				<&clock 159>, <&clock 1024>;
 		clock-names = "hdmi", "sclk_hdmi", "sclk_pixel",
-				"sclk_hdmiphy", "hdmiphy";
+				"sclk_hdmiphy", "mout_hdmi";
 	};
 
 	mixer {
-- 
cgit 


From f49e347b5a6b790a4486301c5b8ce2c2c48bca4e Mon Sep 17 00:00:00 2001
From: Andrew Bresticker <abrestic@chromium.org>
Date: Tue, 8 Oct 2013 06:49:46 +0900
Subject: ARM: dts: add i2c device nodes for Exynos5420

This adds device-tree nodes for the i2c busses on Exynos
5420 platforms.

Signed-off-by: Andrew Bresticker <abrestic@chromium.org>
Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/boot/dts/exynos5420.dtsi | 56 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)

diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index d537cd704e19..77805a56d2c7 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -27,6 +27,10 @@
 		pinctrl2 = &pinctrl_2;
 		pinctrl3 = &pinctrl_3;
 		pinctrl4 = &pinctrl_4;
+		i2c0 = &i2c_0;
+		i2c1 = &i2c_1;
+		i2c2 = &i2c_2;
+		i2c3 = &i2c_3;
 	};
 
 	cpus {
@@ -235,4 +239,56 @@
 		io-channel-ranges;
 		status = "disabled";
 	};
+
+	i2c_0: i2c@12C60000 {
+		compatible = "samsung,s3c2440-i2c";
+		reg = <0x12C60000 0x100>;
+		interrupts = <0 56 0>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		clocks = <&clock 261>;
+		clock-names = "i2c";
+		pinctrl-names = "default";
+		pinctrl-0 = <&i2c0_bus>;
+		status = "disabled";
+	};
+
+	i2c_1: i2c@12C70000 {
+		compatible = "samsung,s3c2440-i2c";
+		reg = <0x12C70000 0x100>;
+		interrupts = <0 57 0>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		clocks = <&clock 262>;
+		clock-names = "i2c";
+		pinctrl-names = "default";
+		pinctrl-0 = <&i2c1_bus>;
+		status = "disabled";
+	};
+
+	i2c_2: i2c@12C80000 {
+		compatible = "samsung,s3c2440-i2c";
+		reg = <0x12C80000 0x100>;
+		interrupts = <0 58 0>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		clocks = <&clock 263>;
+		clock-names = "i2c";
+		pinctrl-names = "default";
+		pinctrl-0 = <&i2c2_bus>;
+		status = "disabled";
+	};
+
+	i2c_3: i2c@12C90000 {
+		compatible = "samsung,s3c2440-i2c";
+		reg = <0x12C90000 0x100>;
+		interrupts = <0 59 0>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		clocks = <&clock 264>;
+		clock-names = "i2c";
+		pinctrl-names = "default";
+		pinctrl-0 = <&i2c3_bus>;
+		status = "disabled";
+	};
 };
-- 
cgit 


From b0e505ceea7e20aa25ea70eaf4cef98e71708944 Mon Sep 17 00:00:00 2001
From: Rahul Sharma <rahul.sharma@samsung.com>
Date: Tue, 8 Oct 2013 06:49:46 +0900
Subject: ARM: dts: add dt nodes for hdmi subsystem for exynos5420

Add hdmi and mixer device tree nodes for Exynos 5420 SoC.

Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/boot/dts/exynos5420.dtsi | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/arm/boot/dts/exynos5420.dtsi b/arch/arm/boot/dts/exynos5420.dtsi
index 77805a56d2c7..09aa06cb3d3a 100644
--- a/arch/arm/boot/dts/exynos5420.dtsi
+++ b/arch/arm/boot/dts/exynos5420.dtsi
@@ -291,4 +291,23 @@
 		pinctrl-0 = <&i2c3_bus>;
 		status = "disabled";
 	};
+
+	hdmi@14530000 {
+		compatible = "samsung,exynos4212-hdmi";
+		reg = <0x14530000 0x70000>;
+		interrupts = <0 95 0>;
+		clocks = <&clock 413>, <&clock 143>, <&clock 768>,
+			<&clock 158>, <&clock 640>;
+		clock-names = "hdmi", "sclk_hdmi", "sclk_pixel",
+			"sclk_hdmiphy", "mout_hdmi";
+		status = "disabled";
+	};
+
+	mixer@14450000 {
+		compatible = "samsung,exynos5420-mixer";
+		reg = <0x14450000 0x10000>;
+		interrupts = <0 94 0>;
+		clocks = <&clock 431>, <&clock 143>;
+		clock-names = "mixer", "sclk_hdmi";
+	};
 };
-- 
cgit 


From 29f8666109064a400bf6807508209a08b28cf3cd Mon Sep 17 00:00:00 2001
From: Rahul Sharma <rahul.sharma@samsung.com>
Date: Tue, 8 Oct 2013 06:49:46 +0900
Subject: ARM: dts: enable hdmi subsystem for exynos5420 smdk board

Add pinctrl node for hdmi hpd gpio pin to exynos5420 smdk board
file. hpd Gpio property is added to the hdmi node. This patch also
adds hdmi ddc node.

Both hdmi device and ddc i2c channel are enabled in
exynos5420-smdk5420.dts

Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/boot/dts/exynos5420-smdk5420.dts | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm/boot/dts/exynos5420-smdk5420.dts b/arch/arm/boot/dts/exynos5420-smdk5420.dts
index bafba25ba7c2..79524c74c603 100644
--- a/arch/arm/boot/dts/exynos5420-smdk5420.dts
+++ b/arch/arm/boot/dts/exynos5420-smdk5420.dts
@@ -61,4 +61,30 @@
 		};
 	};
 
+	pinctrl@13400000 {
+		hdmi_hpd_irq: hdmi-hpd-irq {
+			samsung,pins = "gpx3-7";
+			samsung,pin-function = <0>;
+			samsung,pin-pud = <1>;
+			samsung,pin-drv = <0>;
+		};
+	};
+
+	hdmi@14530000 {
+		status = "okay";
+		hpd-gpio = <&gpx3 7 0>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&hdmi_hpd_irq>;
+	};
+
+	i2c_2: i2c@12C80000 {
+		samsung,i2c-sda-delay = <100>;
+		samsung,i2c-max-bus-freq = <66000>;
+		status = "okay";
+
+		hdmiddc@50 {
+			compatible = "samsung,exynos4210-hdmiddc";
+			reg = <0x50>;
+		};
+	};
 };
-- 
cgit 


From 93457b9cb980ffeeef020c3bcd99065c3807619b Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 8 Oct 2013 06:53:12 +0900
Subject: ARM: dts: Add HDMI related I2C nodes for Arndale board

Updated I2C nodes for HDMI-DDC and HDMI-PHY for Arndale board.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/boot/dts/exynos5250-arndale.dts | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/exynos5250-arndale.dts b/arch/arm/boot/dts/exynos5250-arndale.dts
index b0dbea8f0286..684527087aa4 100644
--- a/arch/arm/boot/dts/exynos5250-arndale.dts
+++ b/arch/arm/boot/dts/exynos5250-arndale.dts
@@ -324,7 +324,14 @@
 	};
 
 	i2c@12C80000 {
-		status = "disabled";
+		samsung,i2c-sda-delay = <100>;
+		samsung,i2c-max-bus-freq = <66000>;
+		samsung,i2c-slave-addr = <0x50>;
+
+		hdmiddc@50 {
+			compatible = "samsung,exynos4210-hdmiddc";
+			reg = <0x50>;
+		};
 	};
 
 	i2c@12C90000 {
@@ -362,6 +369,17 @@
 		status = "disabled";
 	};
 
+	i2c@12CE0000 {
+		samsung,i2c-sda-delay = <100>;
+		samsung,i2c-max-bus-freq = <66000>;
+		samsung,i2c-slave-addr = <0x38>;
+
+		hdmiphy@38 {
+			compatible = "samsung,exynos4212-hdmiphy";
+			reg = <0x38>;
+		};
+	};
+
 	i2c@121D0000 {
 		status = "disabled";
 	};
-- 
cgit 


From cbee750e197873289db0c739f02da39406ae8b22 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 8 Oct 2013 06:59:31 +0900
Subject: ARM: EXYNOS: remove unnecessary header inclusions from exynos4/5 dt
 machine file

mach-exynos{4,5}-dt.c include several header files that are not
really used.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/mach-exynos/mach-exynos4-dt.c | 4 ----
 arch/arm/mach-exynos/mach-exynos5-dt.c | 4 ----
 2 files changed, 8 deletions(-)

diff --git a/arch/arm/mach-exynos/mach-exynos4-dt.c b/arch/arm/mach-exynos/mach-exynos4-dt.c
index 0099c6c13bba..3fc338f14f5b 100644
--- a/arch/arm/mach-exynos/mach-exynos4-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos4-dt.c
@@ -11,12 +11,8 @@
  * published by the Free Software Foundation.
 */
 
-#include <linux/kernel.h>
 #include <linux/of_platform.h>
 #include <linux/of_fdt.h>
-#include <linux/serial_core.h>
-#include <linux/memblock.h>
-#include <linux/clocksource.h>
 
 #include <asm/mach/arch.h>
 #include <plat/mfc.h>
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index f874b773ca13..217e84fd1834 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -11,14 +11,10 @@
 
 #include <linux/of_platform.h>
 #include <linux/of_fdt.h>
-#include <linux/memblock.h>
 #include <linux/io.h>
-#include <linux/clocksource.h>
 
 #include <asm/mach/arch.h>
 #include <mach/regs-pmu.h>
-
-#include <plat/cpu.h>
 #include <plat/mfc.h>
 
 #include "common.h"
-- 
cgit 


From 7e09a979404ed07b8f05d09a0e87a87c7891f472 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 7 Oct 2013 23:00:24 +0100
Subject: regmap: Cache async work structures

Rather than allocating and deallocating the structures used to manage async
transfers each time we do one keep the structures around as long as the
regmap is around. This should provide a small performance improvement.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/base/regmap/internal.h |  2 +-
 drivers/base/regmap/regmap.c   | 59 +++++++++++++++++++++++-------------------
 2 files changed, 34 insertions(+), 27 deletions(-)

diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index 57f777835d97..793ebe207c8a 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -44,7 +44,6 @@ struct regmap_format {
 
 struct regmap_async {
 	struct list_head list;
-	struct work_struct cleanup;
 	struct regmap *map;
 	void *work_buf;
 };
@@ -67,6 +66,7 @@ struct regmap {
 	spinlock_t async_lock;
 	wait_queue_head_t async_waitq;
 	struct list_head async_list;
+	struct list_head async_free;
 	int async_ret;
 
 #ifdef CONFIG_DEBUG_FS
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 7d689a15c500..742f300ca48a 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -42,15 +42,6 @@ static int _regmap_bus_formatted_write(void *context, unsigned int reg,
 static int _regmap_bus_raw_write(void *context, unsigned int reg,
 				 unsigned int val);
 
-static void async_cleanup(struct work_struct *work)
-{
-	struct regmap_async *async = container_of(work, struct regmap_async,
-						  cleanup);
-
-	kfree(async->work_buf);
-	kfree(async);
-}
-
 bool regmap_reg_in_ranges(unsigned int reg,
 			  const struct regmap_range *ranges,
 			  unsigned int nranges)
@@ -465,6 +456,7 @@ struct regmap *regmap_init(struct device *dev,
 
 	spin_lock_init(&map->async_lock);
 	INIT_LIST_HEAD(&map->async_list);
+	INIT_LIST_HEAD(&map->async_free);
 	init_waitqueue_head(&map->async_waitq);
 
 	if (config->read_flag_mask || config->write_flag_mask) {
@@ -942,12 +934,22 @@ EXPORT_SYMBOL_GPL(regmap_reinit_cache);
  */
 void regmap_exit(struct regmap *map)
 {
+	struct regmap_async *async;
+
 	regcache_exit(map);
 	regmap_debugfs_exit(map);
 	regmap_range_exit(map);
 	if (map->bus && map->bus->free_context)
 		map->bus->free_context(map->bus_context);
 	kfree(map->work_buf);
+	while (!list_empty(&map->async_free)) {
+		async = list_first_entry_or_null(&map->async_free,
+						 struct regmap_async,
+						 list);
+		list_del(&async->list);
+		kfree(async->work_buf);
+		kfree(async);
+	}
 	kfree(map);
 }
 EXPORT_SYMBOL_GPL(regmap_exit);
@@ -1115,20 +1117,31 @@ int _regmap_raw_write(struct regmap *map, unsigned int reg,
 	u8[0] |= map->write_flag_mask;
 
 	if (async && map->bus->async_write) {
-		struct regmap_async *async = map->bus->async_alloc();
-		if (!async)
-			return -ENOMEM;
+		struct regmap_async *async;
 
 		trace_regmap_async_write_start(map->dev, reg, val_len);
 
-		async->work_buf = kzalloc(map->format.buf_size,
-					  GFP_KERNEL | GFP_DMA);
-		if (!async->work_buf) {
-			kfree(async);
-			return -ENOMEM;
+		spin_lock_irqsave(&map->async_lock, flags);
+		async = list_first_entry_or_null(&map->async_free,
+						 struct regmap_async,
+						 list);
+		if (async)
+			list_del(&async->list);
+		spin_unlock_irqrestore(&map->async_lock, flags);
+
+		if (!async) {
+			async = map->bus->async_alloc();
+			if (!async)
+				return -ENOMEM;
+
+			async->work_buf = kzalloc(map->format.buf_size,
+						  GFP_KERNEL | GFP_DMA);
+			if (!async->work_buf) {
+				kfree(async);
+				return -ENOMEM;
+			}
 		}
 
-		INIT_WORK(&async->cleanup, async_cleanup);
 		async->map = map;
 
 		/* If the caller supplied the value we can use it safely. */
@@ -1152,11 +1165,8 @@ int _regmap_raw_write(struct regmap *map, unsigned int reg,
 				ret);
 
 			spin_lock_irqsave(&map->async_lock, flags);
-			list_del(&async->list);
+			list_move(&async->list, &map->async_free);
 			spin_unlock_irqrestore(&map->async_lock, flags);
-
-			kfree(async->work_buf);
-			kfree(async);
 		}
 
 		return ret;
@@ -1820,8 +1830,7 @@ void regmap_async_complete_cb(struct regmap_async *async, int ret)
 	trace_regmap_async_io_complete(map->dev);
 
 	spin_lock(&map->async_lock);
-
-	list_del(&async->list);
+	list_move(&async->list, &map->async_free);
 	wake = list_empty(&map->async_list);
 
 	if (ret != 0)
@@ -1829,8 +1838,6 @@ void regmap_async_complete_cb(struct regmap_async *async, int ret)
 
 	spin_unlock(&map->async_lock);
 
-	schedule_work(&async->cleanup);
-
 	if (wake)
 		wake_up(&map->async_waitq);
 }
-- 
cgit 


From 6f0589c8fecfb6b0b5e472a6d05d69a676258767 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Tue, 8 Oct 2013 07:18:21 +0900
Subject: MAINTAINERS: Add DTS files to patterns for Samsung platform

Help ensure that updates to the Samsung device trees get sent to the
Samsung maintainers for review by adding file patterns to MAINTAINERS.

Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 MAINTAINERS | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index e61c2e83fc2b..d2c3370cbf41 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1154,6 +1154,8 @@ L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 L:	linux-samsung-soc@vger.kernel.org (moderated for non-subscribers)
 W:	http://www.fluff.org/ben/linux/
 S:	Maintained
+F:	arch/arm/boot/dts/s3c*
+F:	arch/arm/boot/dts/exynos*
 F:	arch/arm/plat-samsung/
 F:	arch/arm/mach-s3c24*/
 F:	arch/arm/mach-s3c64xx/
-- 
cgit 


From eda3a4fa9529341f2ce23374e5f295764d0b5838 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 26 Sep 2013 13:06:01 +0200
Subject: ARM: shmobile: only enable used I2C interfaces in DT on all Renesas
 boards

Currently all I2C interfaces in all *.dtsi files for various Renesas SoCs
are enabled by default. Switch them all off and only enable populated I2C
interfaces in board-specific *.dts files.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts         | 1 +
 arch/arm/boot/dts/r8a73a4-ape6evm.dts                   | 1 +
 arch/arm/boot/dts/r8a73a4.dtsi                          | 9 +++++++++
 arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts | 1 +
 arch/arm/boot/dts/r8a7740.dtsi                          | 2 ++
 arch/arm/boot/dts/r8a7779.dtsi                          | 4 ++++
 arch/arm/boot/dts/sh73a0-kzm9g-reference.dts            | 2 ++
 arch/arm/boot/dts/sh73a0.dtsi                           | 5 +++++
 8 files changed, 25 insertions(+)

diff --git a/arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts b/arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts
index 2b49b05ae2f4..9443e93d3cac 100644
--- a/arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts
+++ b/arch/arm/boot/dts/r8a73a4-ape6evm-reference.dts
@@ -62,6 +62,7 @@
 };
 
 &i2c5 {
+	status = "okay";
 	vdd_dvfs: max8973@1b {
 		compatible = "maxim,max8973";
 		reg = <0x1b>;
diff --git a/arch/arm/boot/dts/r8a73a4-ape6evm.dts b/arch/arm/boot/dts/r8a73a4-ape6evm.dts
index 72f867e65791..91436b58016f 100644
--- a/arch/arm/boot/dts/r8a73a4-ape6evm.dts
+++ b/arch/arm/boot/dts/r8a73a4-ape6evm.dts
@@ -52,6 +52,7 @@
 };
 
 &i2c5 {
+	status = "okay";
 	vdd_dvfs: max8973@1b {
 		compatible = "maxim,max8973";
 		reg = <0x1b>;
diff --git a/arch/arm/boot/dts/r8a73a4.dtsi b/arch/arm/boot/dts/r8a73a4.dtsi
index 6c26caa880f2..a2c945670460 100644
--- a/arch/arm/boot/dts/r8a73a4.dtsi
+++ b/arch/arm/boot/dts/r8a73a4.dtsi
@@ -93,6 +93,7 @@
 		reg = <0 0xe6500000 0 0x428>;
 		interrupt-parent = <&gic>;
 		interrupts = <0 174 0x4>;
+		status = "disabled";
 	};
 
 	i2c1: i2c@e6510000 {
@@ -102,6 +103,7 @@
 		reg = <0 0xe6510000 0 0x428>;
 		interrupt-parent = <&gic>;
 		interrupts = <0 175 0x4>;
+		status = "disabled";
 	};
 
 	i2c2: i2c@e6520000 {
@@ -111,6 +113,7 @@
 		reg = <0 0xe6520000 0 0x428>;
 		interrupt-parent = <&gic>;
 		interrupts = <0 176 0x4>;
+		status = "disabled";
 	};
 
 	i2c3: i2c@e6530000 {
@@ -120,6 +123,7 @@
 		reg = <0 0xe6530000 0 0x428>;
 		interrupt-parent = <&gic>;
 		interrupts = <0 177 0x4>;
+		status = "disabled";
 	};
 
 	i2c4: i2c@e6540000 {
@@ -129,6 +133,7 @@
 		reg = <0 0xe6540000 0 0x428>;
 		interrupt-parent = <&gic>;
 		interrupts = <0 178 0x4>;
+		status = "disabled";
 	};
 
 	i2c5: i2c@e60b0000 {
@@ -138,6 +143,7 @@
 		reg = <0 0xe60b0000 0 0x428>;
 		interrupt-parent = <&gic>;
 		interrupts = <0 179 0x4>;
+		status = "disabled";
 	};
 
 	i2c6: i2c@e6550000 {
@@ -147,6 +153,7 @@
 		reg = <0 0xe6550000 0 0x428>;
 		interrupt-parent = <&gic>;
 		interrupts = <0 184 0x4>;
+		status = "disabled";
 	};
 
 	i2c7: i2c@e6560000 {
@@ -156,6 +163,7 @@
 		reg = <0 0xe6560000 0 0x428>;
 		interrupt-parent = <&gic>;
 		interrupts = <0 185 0x4>;
+		status = "disabled";
 	};
 
 	i2c8: i2c@e6570000 {
@@ -165,6 +173,7 @@
 		reg = <0 0xe6570000 0 0x428>;
 		interrupt-parent = <&gic>;
 		interrupts = <0 173 0x4>;
+		status = "disabled";
 	};
 
 	mmcif0: mmcif@ee200000 {
diff --git a/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts b/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts
index c638e4ab91b8..9fcffc175da2 100644
--- a/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts
+++ b/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts
@@ -52,6 +52,7 @@
 };
 
 &i2c0 {
+	status = "okay";
 	touchscreen: st1232@55 {
 		compatible = "sitronix,st1232";
 		reg = <0x55>;
diff --git a/arch/arm/boot/dts/r8a7740.dtsi b/arch/arm/boot/dts/r8a7740.dtsi
index 44d3d520e01f..868bdded237c 100644
--- a/arch/arm/boot/dts/r8a7740.dtsi
+++ b/arch/arm/boot/dts/r8a7740.dtsi
@@ -131,6 +131,7 @@
 			      0 202 0x4
 			      0 203 0x4
 			      0 204 0x4>;
+		status = "disabled";
 	};
 
 	i2c1: i2c@e6c20000 {
@@ -143,6 +144,7 @@
 			      0 71 0x4
 			      0 72 0x4
 			      0 73 0x4>;
+		status = "disabled";
 	};
 
 	pfc: pfc@e6050000 {
diff --git a/arch/arm/boot/dts/r8a7779.dtsi b/arch/arm/boot/dts/r8a7779.dtsi
index 23a62447359c..65dc6528bc85 100644
--- a/arch/arm/boot/dts/r8a7779.dtsi
+++ b/arch/arm/boot/dts/r8a7779.dtsi
@@ -156,6 +156,7 @@
 		reg = <0xffc70000 0x1000>;
 		interrupt-parent = <&gic>;
 		interrupts = <0 79 0x4>;
+		status = "disabled";
 	};
 
 	i2c1: i2c@ffc71000 {
@@ -165,6 +166,7 @@
 		reg = <0xffc71000 0x1000>;
 		interrupt-parent = <&gic>;
 		interrupts = <0 82 0x4>;
+		status = "disabled";
 	};
 
 	i2c2: i2c@ffc72000 {
@@ -174,6 +176,7 @@
 		reg = <0xffc72000 0x1000>;
 		interrupt-parent = <&gic>;
 		interrupts = <0 80 0x4>;
+		status = "disabled";
 	};
 
 	i2c3: i2c@ffc73000 {
@@ -183,6 +186,7 @@
 		reg = <0xffc73000 0x1000>;
 		interrupt-parent = <&gic>;
 		interrupts = <0 81 0x4>;
+		status = "disabled";
 	};
 
 	pfc: pfc@fffc0000 {
diff --git a/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts b/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts
index 212230629f27..8ee06dd81799 100644
--- a/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts
+++ b/arch/arm/boot/dts/sh73a0-kzm9g-reference.dts
@@ -108,6 +108,7 @@
 };
 
 &i2c0 {
+	status = "okay";
 	as3711@40 {
 		compatible = "ams,as3711";
 		reg = <0x40>;
@@ -183,6 +184,7 @@
 &i2c3 {
 	pinctrl-0 = <&i2c3_pins>;
 	pinctrl-names = "default";
+	status = "okay";
 };
 
 &mmcif {
diff --git a/arch/arm/boot/dts/sh73a0.dtsi b/arch/arm/boot/dts/sh73a0.dtsi
index ba59a5875a10..f56665af1e42 100644
--- a/arch/arm/boot/dts/sh73a0.dtsi
+++ b/arch/arm/boot/dts/sh73a0.dtsi
@@ -135,6 +135,7 @@
 			      0 168 0x4
 			      0 169 0x4
 			      0 170 0x4>;
+		status = "disabled";
 	};
 
 	i2c1: i2c@e6822000 {
@@ -147,6 +148,7 @@
 			      0 52 0x4
 			      0 53 0x4
 			      0 54 0x4>;
+		status = "disabled";
 	};
 
 	i2c2: i2c@e6824000 {
@@ -159,6 +161,7 @@
 			      0 172 0x4
 			      0 173 0x4
 			      0 174 0x4>;
+		status = "disabled";
 	};
 
 	i2c3: i2c@e6826000 {
@@ -171,6 +174,7 @@
 			      0 184 0x4
 			      0 185 0x4
 			      0 186 0x4>;
+		status = "disabled";
 	};
 
 	i2c4: i2c@e6828000 {
@@ -183,6 +187,7 @@
 			      0 188 0x4
 			      0 189 0x4
 			      0 190 0x4>;
+		status = "disabled";
 	};
 
 	mmcif: mmcif@e6bd0000 {
-- 
cgit 


From edd2b9f4e6ed39032ffe9793e262c8a4b62c2152 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 26 Sep 2013 19:20:58 +0200
Subject: ARM: shmobile: r8a7790: add I2C DT nodes

Add DT nodes for the four I2C interfacces on r8a7790.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/r8a7790.dtsi | 40 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi
index a0cfb6618884..47bc1cbfd075 100644
--- a/arch/arm/boot/dts/r8a7790.dtsi
+++ b/arch/arm/boot/dts/r8a7790.dtsi
@@ -176,6 +176,46 @@
 		interrupts = <0 0 4>, <0 1 4>, <0 2 4>,	<0 3 4>;
 	};
 
+	i2c0: i2c@e6508000 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "renesas,i2c-r8a7790";
+		reg = <0 0xe6508000 0 0x40>;
+		interrupt-parent = <&gic>;
+		interrupts = <0 287 0x4>;
+		status = "disabled";
+	};
+
+	i2c1: i2c@e6518000 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "renesas,i2c-r8a7790";
+		reg = <0 0xe6518000 0 0x40>;
+		interrupt-parent = <&gic>;
+		interrupts = <0 288 0x4>;
+		status = "disabled";
+	};
+
+	i2c2: i2c@e6530000 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "renesas,i2c-r8a7790";
+		reg = <0 0xe6530000 0 0x40>;
+		interrupt-parent = <&gic>;
+		interrupts = <0 286 0x4>;
+		status = "disabled";
+	};
+
+	i2c3: i2c@e6540000 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "renesas,i2c-r8a7790";
+		reg = <0 0xe6540000 0 0x40>;
+		interrupt-parent = <&gic>;
+		interrupts = <0 290 0x4>;
+		status = "disabled";
+	};
+
 	mmcif0: mmcif@ee200000 {
 		compatible = "renesas,sh-mmcif";
 		reg = <0 0xee200000 0 0x80>;
-- 
cgit 


From 734e2ce38c6aa3e88f0a339f001d272196f26dfa Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 26 Sep 2013 19:30:03 +0200
Subject: ARM: shmobile: r8a73a4: add a DT node for the DMAC

Add a DT node for the only system DMAC instance on r8a73a4. The RT DMAC
can be added later under the same multiplexer, because they can serve the
same slaves and use the same MID-RID values. Configuration data is
supplied to the driver, using a compatibility match string.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/r8a73a4.dtsi | 43 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/arch/arm/boot/dts/r8a73a4.dtsi b/arch/arm/boot/dts/r8a73a4.dtsi
index a2c945670460..8c81a0c21178 100644
--- a/arch/arm/boot/dts/r8a73a4.dtsi
+++ b/arch/arm/boot/dts/r8a73a4.dtsi
@@ -78,6 +78,49 @@
 				<0 56 4>, <0 57 4>;
 	};
 
+	dmac: dma-multiplexer@0 {
+		compatible = "renesas,shdma-mux";
+		#dma-cells = <1>;
+		dma-channels = <20>;
+		dma-requests = <256>;
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		dma0: dma-controller@e6700020 {
+			compatible = "renesas,shdma-r8a73a4";
+			reg = <0 0xe6700020 0 0x89e0>;
+			interrupt-parent = <&gic>;
+			interrupts = <0 220 4
+					0 200 4
+					0 201 4
+					0 202 4
+					0 203 4
+					0 204 4
+					0 205 4
+					0 206 4
+					0 207 4
+					0 208 4
+					0 209 4
+					0 210 4
+					0 211 4
+					0 212 4
+					0 213 4
+					0 214 4
+					0 215 4
+					0 216 4
+					0 217 4
+					0 218 4
+					0 219 4>;
+			interrupt-names = "error",
+					"ch0", "ch1", "ch2", "ch3",
+					"ch4", "ch5", "ch6", "ch7",
+					"ch8", "ch9", "ch10", "ch11",
+					"ch12", "ch13", "ch14", "ch15",
+					"ch16", "ch17", "ch18", "ch19";
+		};
+	};
+
 	thermal@e61f0000 {
 		compatible = "renesas,rcar-thermal";
 		reg = <0 0xe61f0000 0 0x14>, <0 0xe61f0100 0 0x38>,
-- 
cgit 


From 87b73d88723601636646a69445f89c0e498fff71 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Wed, 11 Sep 2013 13:51:13 +0200
Subject: ARM: shmobile: armadillo-reference: Add PWM backlight node to DT

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 .../boot/dts/r8a7740-armadillo800eva-reference.dts    | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts b/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts
index 9fcffc175da2..8b2aab5c1d3c 100644
--- a/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts
+++ b/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts
@@ -11,6 +11,7 @@
 /dts-v1/;
 /include/ "r8a7740.dtsi"
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pwm/pwm.h>
 
 / {
 	model = "armadillo 800 eva reference";
@@ -49,6 +50,15 @@
 			gpios = <&pfc 177 GPIO_ACTIVE_HIGH>;
 		};
 	};
+
+	backlight {
+		compatible = "pwm-backlight";
+		pwms = <&tpu 2 33333 PWM_POLARITY_INVERTED>;
+		brightness-levels = <0 1 2 4 8 16 32 64 128 255>;
+		default-brightness-level = <9>;
+		pinctrl-0 = <&backlight_pins>;
+		pinctrl-names = "default";
+	};
 };
 
 &i2c0 {
@@ -77,4 +87,13 @@
 		renesas,groups = "intc_irq10";
 		renesas,function = "intc";
 	};
+
+	backlight_pins: backlight {
+		renesas,groups = "tpu0_to2_1";
+		renesas,function = "tpu0";
+	};
+};
+
+&tpu {
+	status = "okay";
 };
-- 
cgit 


From e99d7963e0b9469f16f434a5a68a7cba3004a2df Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Fri, 27 Sep 2013 10:02:57 +0200
Subject: ARM: shmobile: armadillo800eva-reference: add SDHI and MMCIF
 interfaces

Add SDHI0 and MMCIF interfaces to armadillo800eva-reference with
regulators and pin configurations. SDHI1 is not added yet, because the
switch, that connects the interface either to an SD slot or to a WiFi
SDIO card cannot be described in DT yet.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 .../boot/dts/r8a7740-armadillo800eva-reference.dts | 58 ++++++++++++++++++++++
 arch/arm/boot/dts/r8a7740.dtsi                     | 33 ++++++++++++
 2 files changed, 91 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts b/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts
index 8b2aab5c1d3c..1c56c5e56950 100644
--- a/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts
+++ b/arch/arm/boot/dts/r8a7740-armadillo800eva-reference.dts
@@ -35,6 +35,33 @@
 		regulator-boot-on;
 	};
 
+	vcc_sdhi0: regulator@1 {
+		compatible = "regulator-fixed";
+
+		regulator-name = "SDHI0 Vcc";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+
+		gpio = <&pfc 75 GPIO_ACTIVE_HIGH>;
+		enable-active-high;
+	};
+
+	vccq_sdhi0: regulator@2 {
+		compatible = "regulator-gpio";
+
+		regulator-name = "SDHI0 VccQ";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <3300000>;
+		vin-supply = <&vcc_sdhi0>;
+
+		enable-gpio = <&pfc 74 GPIO_ACTIVE_HIGH>;
+		gpios = <&pfc 17 GPIO_ACTIVE_HIGH>;
+		states = <3300000 0
+			  1800000 1>;
+
+		enable-active-high;
+	};
+
 	leds {
 		compatible = "gpio-leds";
 		led1 {
@@ -92,8 +119,39 @@
 		renesas,groups = "tpu0_to2_1";
 		renesas,function = "tpu0";
 	};
+
+	mmc0_pins: mmc0 {
+		renesas,groups = "mmc0_data8_1", "mmc0_ctrl_1";
+		renesas,function = "mmc0";
+	};
+
+	sdhi0_pins: sdhi0 {
+		renesas,groups = "sdhi0_data4", "sdhi0_ctrl", "sdhi0_wp";
+		renesas,function = "sdhi0";
+	};
 };
 
 &tpu {
 	status = "okay";
 };
+
+&mmcif0 {
+	pinctrl-0 = <&mmc0_pins>;
+	pinctrl-names = "default";
+
+	vmmc-supply = <&reg_3p3v>;
+	bus-width = <8>;
+	non-removable;
+	status = "okay";
+};
+
+&sdhi0 {
+	pinctrl-0 = <&sdhi0_pins>;
+	pinctrl-names = "default";
+
+	vmmc-supply = <&vcc_sdhi0>;
+	vqmmc-supply = <&vccq_sdhi0>;
+	bus-width = <4>;
+	cd-gpios = <&pfc 167 GPIO_ACTIVE_LOW>;
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/r8a7740.dtsi b/arch/arm/boot/dts/r8a7740.dtsi
index 868bdded237c..ae1e230f711d 100644
--- a/arch/arm/boot/dts/r8a7740.dtsi
+++ b/arch/arm/boot/dts/r8a7740.dtsi
@@ -161,4 +161,37 @@
 		status = "disabled";
 		#pwm-cells = <3>;
 	};
+
+	mmcif0: mmcif@e6bd0000 {
+		compatible = "renesas,sh-mmcif";
+		reg = <0xe6bd0000 0x100>;
+		interrupt-parent = <&gic>;
+		interrupts = <0 56 4
+				0 57 4>;
+		status = "disabled";
+	};
+
+	sdhi0: sdhi@e6850000 {
+		compatible = "renesas,sdhi-r8a7740";
+		reg = <0xe6850000 0x100>;
+		interrupt-parent = <&gic>;
+		interrupts = <0 117 4
+				0 118 4
+				0 119 4>;
+		cap-sd-highspeed;
+		cap-sdio-irq;
+		status = "disabled";
+	};
+
+	sdhi1: sdhi@e6860000 {
+		compatible = "renesas,sdhi-r8a7740";
+		reg = <0xe6860000 0x100>;
+		interrupt-parent = <&gic>;
+		interrupts = <0 121 4
+				0 122 4
+				0 123 4>;
+		cap-sd-highspeed;
+		cap-sdio-irq;
+		status = "disabled";
+	};
 };
-- 
cgit 


From d77db73e260fe4b5cca4fa1e5253c21e2d755f58 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 1 Oct 2013 17:12:29 +0900
Subject: ARM: shmobile: r8a7791 IRQC device tree node

Enable a r8a7791 IRQC block by adding a device tree
node for the IRQC hardware and pins IRQ0 to IRQ9.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/r8a7791.dtsi | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7791.dtsi b/arch/arm/boot/dts/r8a7791.dtsi
index bbed43bd9be9..b70141758de1 100644
--- a/arch/arm/boot/dts/r8a7791.dtsi
+++ b/arch/arm/boot/dts/r8a7791.dtsi
@@ -38,4 +38,22 @@
 			<0 0xf1006000 0 0x2000>;
 		interrupts = <1 9 0xf04>;
 	};
+
+	irqc0: interrupt-controller@e61c0000 {
+		compatible = "renesas,irqc";
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		reg = <0 0xe61c0000 0 0x200>;
+		interrupt-parent = <&gic>;
+		interrupts = <0 0 4>,
+			      <0 1 4>,
+			      <0 2 4>,
+			      <0 3 4>,
+			      <0 12 4>,
+			      <0 13 4>,
+			      <0 14 4>,
+			      <0 15 4>,
+			      <0 16 4>,
+			      <0 17 4>;
+	};
 };
-- 
cgit 


From 03586acf7808ed65963cd262188b059ff6951d40 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 1 Oct 2013 17:12:38 +0900
Subject: ARM: shmobile: r8a7791 Arch timer device tree node

Add r8a7791 arch timer device tree information.

This needs to be used together with r8a7791 support
code that ties in the R-Car Gen2 arch timer workarounds.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/r8a7791.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7791.dtsi b/arch/arm/boot/dts/r8a7791.dtsi
index b70141758de1..a1a9e5c4813d 100644
--- a/arch/arm/boot/dts/r8a7791.dtsi
+++ b/arch/arm/boot/dts/r8a7791.dtsi
@@ -39,6 +39,14 @@
 		interrupts = <1 9 0xf04>;
 	};
 
+	timer {
+		compatible = "arm,armv7-timer";
+		interrupts = <1 13 0xf08>,
+				<1 14 0xf08>,
+				<1 11 0xf08>,
+				<1 10 0xf08>;
+	};
+
 	irqc0: interrupt-controller@e61c0000 {
 		compatible = "renesas,irqc";
 		#interrupt-cells = <2>;
-- 
cgit 


From 15ab426c0f1935016ea52cfedf0d808f8c79dd1e Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 1 Oct 2013 17:13:07 +0900
Subject: ARM: shmobile: r8a7791 SMP device tree node

Add a device node for the r8a7791 secondary CPU core.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/r8a7791.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7791.dtsi b/arch/arm/boot/dts/r8a7791.dtsi
index a1a9e5c4813d..fea5cfef4691 100644
--- a/arch/arm/boot/dts/r8a7791.dtsi
+++ b/arch/arm/boot/dts/r8a7791.dtsi
@@ -25,6 +25,13 @@
 			reg = <0>;
 			clock-frequency = <1300000000>;
 		};
+
+		cpu1: cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a15";
+			reg = <1>;
+			clock-frequency = <1300000000>;
+		};
 	};
 
 	gic: interrupt-controller@f1001000 {
-- 
cgit 


From 87f1ba80179a75ae1e2e783b890adb39949c7c03 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Wed, 2 Oct 2013 01:32:12 -0700
Subject: ARM: shmobile: r8a7778: add renesas_intc_irqpin support on DTSI

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/r8a7778.dtsi | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/arm/boot/dts/r8a7778.dtsi b/arch/arm/boot/dts/r8a7778.dtsi
index 45ac404ab6d8..5d08f1162e8c 100644
--- a/arch/arm/boot/dts/r8a7778.dtsi
+++ b/arch/arm/boot/dts/r8a7778.dtsi
@@ -33,6 +33,25 @@
 		      <0xfe430000 0x100>;
 	};
 
+	/* irqpin: IRQ0 - IRQ3 */
+	irqpin: irqpin@fe78001c {
+		compatible = "renesas,intc-irqpin";
+		#interrupt-cells = <2>;
+		interrupt-controller;
+		status = "disabled"; /* default off */
+		reg =	<0xfe78001c 4>,
+			<0xfe780010 4>,
+			<0xfe780024 4>,
+			<0xfe780044 4>,
+			<0xfe780064 4>;
+		interrupt-parent = <&gic>;
+		interrupts =   <0 27 0x4
+				0 28 0x4
+				0 29 0x4
+				0 30 0x4>;
+		sense-bitfield-width = <2>;
+	};
+
 	gpio0: gpio@ffc40000 {
 		compatible = "renesas,gpio-r8a7778", "renesas,gpio-rcar";
 		reg = <0xffc40000 0x2c>;
-- 
cgit 


From 1e918e00ea2aa2d23a3e0552e907c1da104cdc39 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Wed, 2 Oct 2013 01:34:07 -0700
Subject: ARM: shmobile: bockw: add SMSC support on DTS

This patch enables INTC IRQ and SMSC on BockW board via DT.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/r8a7778-bockw-reference.dts | 27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/r8a7778-bockw-reference.dts b/arch/arm/boot/dts/r8a7778-bockw-reference.dts
index 9bb903a3230d..4425fd2e09f4 100644
--- a/arch/arm/boot/dts/r8a7778-bockw-reference.dts
+++ b/arch/arm/boot/dts/r8a7778-bockw-reference.dts
@@ -22,11 +22,36 @@
 	compatible = "renesas,bockw-reference", "renesas,r8a7778";
 
 	chosen {
-		bootargs = "console=ttySC0,115200 ignore_loglevel rw";
+		bootargs = "console=ttySC0,115200 ignore_loglevel root=/dev/nfs ip=dhcp rw";
 	};
 
 	memory {
 		device_type = "memory";
 		reg = <0x60000000 0x10000000>;
 	};
+
+	fixedregulator3v3: fixedregulator@0 {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-3.3V";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	lan0@18300000 {
+		compatible = "smsc,lan9220", "smsc,lan9115";
+		reg = <0x18300000 0x1000>;
+
+		phy-mode = "mii";
+		interrupt-parent = <&irqpin>;
+		interrupts = <0 0>; /* IRQ0: hwirq 0 on irqpin */
+		reg-io-width = <4>;
+		vddvario-supply = <&fixedregulator3v3>;
+		vdd33a-supply = <&fixedregulator3v3>;
+	};
+};
+
+&irqpin {
+	status = "okay";
 };
-- 
cgit 


From bffdd7d1a4249dddf1ded81e412cf3c78d139e38 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Wed, 2 Oct 2013 01:40:20 -0700
Subject: ARM: shmobile: marzen: fixup SMSC IRQ number on DTS

This patch fixup miss-setting of SMSC IRQ number.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/r8a7779-marzen-reference.dts | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/r8a7779-marzen-reference.dts b/arch/arm/boot/dts/r8a7779-marzen-reference.dts
index 6d5508392252..ab4110aa3c3b 100644
--- a/arch/arm/boot/dts/r8a7779-marzen-reference.dts
+++ b/arch/arm/boot/dts/r8a7779-marzen-reference.dts
@@ -42,8 +42,8 @@
 		pinctrl-names = "default";
 
 		phy-mode = "mii";
-		interrupt-parent = <&gic>;
-		interrupts = <0 28 0x4>;
+		interrupt-parent = <&irqpin0>;
+		interrupts = <1 0>; /* IRQ1: hwirq 1 on irqpin0 */
 		reg-io-width = <4>;
 		vddvario-supply = <&fixedregulator3v3>;
 		vdd33a-supply = <&fixedregulator3v3>;
@@ -63,6 +63,10 @@
 	};
 };
 
+&irqpin0 {
+	status = "okay";
+};
+
 &pfc {
 	pinctrl-0 = <&scif2_pins &scif4_pins &sdhi0_pins>;
 	pinctrl-names = "default";
-- 
cgit 


From 84b47dfc1b1638c40257382d2216d1668cfca3d0 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Wed, 2 Oct 2013 01:39:13 -0700
Subject: ARM: shmobile: r8a7779: add irqpin default status on DTSI

r8a7779 INTC needs IRL pin mode settings to determine
behavior of IRQ0 - IRQ3. But it depends on platform.
This patch adds status = "disabled" on r8a7779.dtsi as default

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/r8a7779.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/r8a7779.dtsi b/arch/arm/boot/dts/r8a7779.dtsi
index 65dc6528bc85..c2fb49b54b4f 100644
--- a/arch/arm/boot/dts/r8a7779.dtsi
+++ b/arch/arm/boot/dts/r8a7779.dtsi
@@ -135,6 +135,7 @@
 	irqpin0: irqpin@fe780010 {
 		compatible = "renesas,intc-irqpin";
 		#interrupt-cells = <2>;
+		status = "disabled";
 		interrupt-controller;
 		reg = <0xfe78001c 4>,
 			<0xfe780010 4>,
-- 
cgit 


From 3794c1663491012b10b41699b5ee5175bd75a3f1 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Fri, 2 Aug 2013 16:50:40 +0200
Subject: ARM: shmobile: r8a73a4: add a DMAC platform device and clock for it

Add a DMAC platform device and clock definitions for it on r8a73a4.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a73a4.c        |  4 +-
 arch/arm/mach-shmobile/include/mach/r8a73a4.h |  9 +++
 arch/arm/mach-shmobile/setup-r8a73a4.c        | 91 +++++++++++++++++++++++++++
 3 files changed, 103 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/clock-r8a73a4.c b/arch/arm/mach-shmobile/clock-r8a73a4.c
index 8ea5ef6c79cc..357b9bca7940 100644
--- a/arch/arm/mach-shmobile/clock-r8a73a4.c
+++ b/arch/arm/mach-shmobile/clock-r8a73a4.c
@@ -504,7 +504,7 @@ static struct clk div6_clks[DIV6_NR] = {
 
 /* MSTP */
 enum {
-	MSTP217, MSTP216, MSTP207, MSTP206, MSTP204, MSTP203,
+	MSTP218, MSTP217, MSTP216, MSTP207, MSTP206, MSTP204, MSTP203,
 	MSTP329, MSTP323, MSTP318, MSTP317, MSTP316,
 	MSTP315, MSTP314, MSTP313, MSTP312, MSTP305, MSTP300,
 	MSTP411, MSTP410, MSTP409,
@@ -519,6 +519,7 @@ static struct clk mstp_clks[MSTP_NR] = {
 	[MSTP207] = SH_CLK_MSTP32(&div6_clks[DIV6_MP],	SMSTPCR2, 7, 0), /* SCIFB1 */
 	[MSTP216] = SH_CLK_MSTP32(&div6_clks[DIV6_MP],	SMSTPCR2, 16, 0), /* SCIFB2 */
 	[MSTP217] = SH_CLK_MSTP32(&div6_clks[DIV6_MP],	SMSTPCR2, 17, 0), /* SCIFB3 */
+	[MSTP218] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],	SMSTPCR2, 18, 0), /* DMAC */
 	[MSTP300] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],	SMSTPCR3, 0, 0), /* IIC2 */
 	[MSTP305] = SH_CLK_MSTP32(&div6_clks[DIV6_MMC1],SMSTPCR3, 5, 0), /* MMCIF1 */
 	[MSTP312] = SH_CLK_MSTP32(&div6_clks[DIV6_SDHI2],SMSTPCR3, 12, 0), /* SDHI2 */
@@ -578,6 +579,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("sh-sci.3", &mstp_clks[MSTP207]),
 	CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP216]),
 	CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP217]),
+	CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]),
 	CLKDEV_DEV_ID("rcar_thermal", &mstp_clks[MSTP522]),
 	CLKDEV_DEV_ID("e6520000.i2c", &mstp_clks[MSTP300]),
 	CLKDEV_DEV_ID("sh_mmcif.1", &mstp_clks[MSTP305]),
diff --git a/arch/arm/mach-shmobile/include/mach/r8a73a4.h b/arch/arm/mach-shmobile/include/mach/r8a73a4.h
index 5214338a6a47..ce8bdd1d8a8a 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a73a4.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a73a4.h
@@ -1,6 +1,15 @@
 #ifndef __ASM_R8A73A4_H__
 #define __ASM_R8A73A4_H__
 
+/* DMA slave IDs */
+enum {
+	SHDMA_SLAVE_INVALID,
+	SHDMA_SLAVE_MMCIF0_TX,
+	SHDMA_SLAVE_MMCIF0_RX,
+	SHDMA_SLAVE_MMCIF1_TX,
+	SHDMA_SLAVE_MMCIF1_RX,
+};
+
 void r8a73a4_add_standard_devices(void);
 void r8a73a4_add_dt_devices(void);
 void r8a73a4_clock_init(void);
diff --git a/arch/arm/mach-shmobile/setup-r8a73a4.c b/arch/arm/mach-shmobile/setup-r8a73a4.c
index 53a896275cae..b0f2749071be 100644
--- a/arch/arm/mach-shmobile/setup-r8a73a4.c
+++ b/arch/arm/mach-shmobile/setup-r8a73a4.c
@@ -22,8 +22,10 @@
 #include <linux/of_platform.h>
 #include <linux/platform_data/irq-renesas-irqc.h>
 #include <linux/serial_sci.h>
+#include <linux/sh_dma.h>
 #include <linux/sh_timer.h>
 #include <mach/common.h>
+#include <mach/dma-register.h>
 #include <mach/irqs.h>
 #include <mach/r8a73a4.h>
 #include <asm/mach/arch.h>
@@ -199,12 +201,101 @@ void __init r8a73a4_add_dt_devices(void)
 	r8a7790_register_cmt(10);
 }
 
+/* DMA */
+static const struct sh_dmae_slave_config dma_slaves[] = {
+	{
+		.slave_id	= SHDMA_SLAVE_MMCIF0_TX,
+		.addr		= 0xee200034,
+		.chcr		= CHCR_TX(XMIT_SZ_32BIT),
+		.mid_rid	= 0xd1,
+	}, {
+		.slave_id	= SHDMA_SLAVE_MMCIF0_RX,
+		.addr		= 0xee200034,
+		.chcr		= CHCR_RX(XMIT_SZ_32BIT),
+		.mid_rid	= 0xd2,
+	}, {
+		.slave_id	= SHDMA_SLAVE_MMCIF1_TX,
+		.addr		= 0xee220034,
+		.chcr		= CHCR_TX(XMIT_SZ_32BIT),
+		.mid_rid	= 0xe1,
+	}, {
+		.slave_id	= SHDMA_SLAVE_MMCIF1_RX,
+		.addr		= 0xee220034,
+		.chcr		= CHCR_RX(XMIT_SZ_32BIT),
+		.mid_rid	= 0xe2,
+	},
+};
+
+#define DMAE_CHANNEL(a, b)				\
+	{						\
+		.offset         = (a) - 0x20,		\
+		.dmars          = (a) - 0x20 + 0x40,	\
+		.chclr_bit	= (b),			\
+		.chclr_offset	= 0x80 - 0x20,		\
+	}
+
+static const struct sh_dmae_channel dma_channels[] = {
+	DMAE_CHANNEL(0x8000, 0),
+	DMAE_CHANNEL(0x8080, 1),
+	DMAE_CHANNEL(0x8100, 2),
+	DMAE_CHANNEL(0x8180, 3),
+	DMAE_CHANNEL(0x8200, 4),
+	DMAE_CHANNEL(0x8280, 5),
+	DMAE_CHANNEL(0x8300, 6),
+	DMAE_CHANNEL(0x8380, 7),
+	DMAE_CHANNEL(0x8400, 8),
+	DMAE_CHANNEL(0x8480, 9),
+	DMAE_CHANNEL(0x8500, 10),
+	DMAE_CHANNEL(0x8580, 11),
+	DMAE_CHANNEL(0x8600, 12),
+	DMAE_CHANNEL(0x8680, 13),
+	DMAE_CHANNEL(0x8700, 14),
+	DMAE_CHANNEL(0x8780, 15),
+	DMAE_CHANNEL(0x8800, 16),
+	DMAE_CHANNEL(0x8880, 17),
+	DMAE_CHANNEL(0x8900, 18),
+	DMAE_CHANNEL(0x8980, 19),
+};
+
+static const struct sh_dmae_pdata dma_pdata = {
+	.slave		= dma_slaves,
+	.slave_num	= ARRAY_SIZE(dma_slaves),
+	.channel	= dma_channels,
+	.channel_num	= ARRAY_SIZE(dma_channels),
+	.ts_low_shift	= TS_LOW_SHIFT,
+	.ts_low_mask	= TS_LOW_BIT << TS_LOW_SHIFT,
+	.ts_high_shift	= TS_HI_SHIFT,
+	.ts_high_mask	= TS_HI_BIT << TS_HI_SHIFT,
+	.ts_shift	= dma_ts_shift,
+	.ts_shift_num	= ARRAY_SIZE(dma_ts_shift),
+	.dmaor_init     = DMAOR_DME,
+	.chclr_present	= 1,
+	.chclr_bitwise	= 1,
+};
+
+static struct resource dma_resources[] = {
+	DEFINE_RES_MEM(0xe6700020, 0x89e0),
+	DEFINE_RES_IRQ_NAMED(gic_spi(220), "error_irq"),
+	{
+		/* IRQ for channels 0-19 */
+		.start  = gic_spi(200),
+		.end    = gic_spi(219),
+		.flags  = IORESOURCE_IRQ,
+	},
+};
+
+#define r8a73a4_register_dmac()							\
+	platform_device_register_resndata(&platform_bus, "sh-dma-engine", 0,	\
+				dma_resources, ARRAY_SIZE(dma_resources),	\
+				&dma_pdata, sizeof(dma_pdata))
+
 void __init r8a73a4_add_standard_devices(void)
 {
 	r8a73a4_add_dt_devices();
 	r8a73a4_register_irqc(0);
 	r8a73a4_register_irqc(1);
 	r8a73a4_register_thermal();
+	r8a73a4_register_dmac();
 }
 
 void __init r8a73a4_init_early(void)
-- 
cgit 


From 1eb6b5a0e55bfcfb0852b7d0f9442841ff807345 Mon Sep 17 00:00:00 2001
From: Max Filippov <max.filippov@cogentembedded.com>
Date: Sun, 25 Aug 2013 01:35:13 +0400
Subject: ARM: shmobile: r8a7778: add HPB-DMAC support

Add HPB-DMAC platform device on R8A7778 SoC along with its slave and channel
configurations (only for SDHI0 so far).

Signed-off-by: Max Filippov <max.filippov@cogentembedded.com>
[Sergei: moved *enum* declaring HPB-DMAC slave IDs from now removed <mach/dma.h>
to <mach/r8a7778.h>, removed #include <mach/dma.h> from setup-r8a7778.c, removed
SSI-related *enum* values and SSI-related data from hpb_dmae_slaves[] and
hpb_dmae_channels[], moved the comments after the element initializers of
hpb_dmae_channels[].]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/include/mach/r8a7778.h |  8 +++
 arch/arm/mach-shmobile/setup-r8a7778.c        | 85 +++++++++++++++++++++++++++
 2 files changed, 93 insertions(+)

diff --git a/arch/arm/mach-shmobile/include/mach/r8a7778.h b/arch/arm/mach-shmobile/include/mach/r8a7778.h
index ea1dca6880f4..1d6fe973e8b4 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7778.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7778.h
@@ -1,6 +1,7 @@
 /*
  * Copyright (C) 2013  Renesas Solutions Corp.
  * Copyright (C) 2013  Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ * Copyright (C) 2013  Cogent Embedded, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -21,6 +22,13 @@
 #include <linux/sh_eth.h>
 #include <linux/platform_data/camera-rcar.h>
 
+/* HPB-DMA slave IDs */
+enum {
+	HPBDMA_SLAVE_DUMMY,
+	HPBDMA_SLAVE_SDHI0_TX,
+	HPBDMA_SLAVE_SDHI0_RX,
+};
+
 extern void r8a7778_add_standard_devices(void);
 extern void r8a7778_add_standard_devices_dt(void);
 extern void r8a7778_add_ether_device(struct sh_eth_plat_data *pdata);
diff --git a/arch/arm/mach-shmobile/setup-r8a7778.c b/arch/arm/mach-shmobile/setup-r8a7778.c
index e484d1420a01..fa1b7e44a973 100644
--- a/arch/arm/mach-shmobile/setup-r8a7778.c
+++ b/arch/arm/mach-shmobile/setup-r8a7778.c
@@ -24,6 +24,7 @@
 #include <linux/irqchip/arm-gic.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
+#include <linux/platform_data/dma-rcar-hpbdma.h>
 #include <linux/platform_data/gpio-rcar.h>
 #include <linux/platform_data/irq-renesas-intc-irqpin.h>
 #include <linux/platform_device.h>
@@ -356,6 +357,88 @@ void __init r8a7778_add_dt_devices(void)
 	r8a7778_register_tmu(1);
 }
 
+/* HPB-DMA */
+
+/* Asynchronous mode register (ASYNCMDR) bits */
+#define HPB_DMAE_ASYNCMDR_ASMD22_MASK	BIT(2)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD22_SINGLE	BIT(2)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD22_MULTI	0	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD21_MASK	BIT(1)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD21_SINGLE	BIT(1)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD21_MULTI	0	/* SDHI0 */
+
+static const struct hpb_dmae_slave_config hpb_dmae_slaves[] = {
+	{
+		.id	= HPBDMA_SLAVE_SDHI0_TX,
+		.addr	= 0xffe4c000 + 0x30,
+		.dcr	= HPB_DMAE_DCR_SPDS_16BIT |
+			  HPB_DMAE_DCR_DMDL |
+			  HPB_DMAE_DCR_DPDS_16BIT,
+		.rstr	= HPB_DMAE_ASYNCRSTR_ASRST21 |
+			  HPB_DMAE_ASYNCRSTR_ASRST22 |
+			  HPB_DMAE_ASYNCRSTR_ASRST23,
+		.mdr	= HPB_DMAE_ASYNCMDR_ASMD21_MULTI,
+		.mdm	= HPB_DMAE_ASYNCMDR_ASMD21_MASK,
+		.port	= 0x0D0C,
+		.flags	= HPB_DMAE_SET_ASYNC_RESET | HPB_DMAE_SET_ASYNC_MODE,
+		.dma_ch	= 21,
+	}, {
+		.id	= HPBDMA_SLAVE_SDHI0_RX,
+		.addr	= 0xffe4c000 + 0x30,
+		.dcr	= HPB_DMAE_DCR_SMDL |
+			  HPB_DMAE_DCR_SPDS_16BIT |
+			  HPB_DMAE_DCR_DPDS_16BIT,
+		.rstr	= HPB_DMAE_ASYNCRSTR_ASRST21 |
+			  HPB_DMAE_ASYNCRSTR_ASRST22 |
+			  HPB_DMAE_ASYNCRSTR_ASRST23,
+		.mdr	= HPB_DMAE_ASYNCMDR_ASMD22_MULTI,
+		.mdm	= HPB_DMAE_ASYNCMDR_ASMD22_MASK,
+		.port	= 0x0D0C,
+		.flags	= HPB_DMAE_SET_ASYNC_RESET | HPB_DMAE_SET_ASYNC_MODE,
+		.dma_ch	= 22,
+	},
+};
+
+static const struct hpb_dmae_channel hpb_dmae_channels[] = {
+	HPB_DMAE_CHANNEL(0x7e, HPBDMA_SLAVE_SDHI0_TX), /* ch. 21 */
+	HPB_DMAE_CHANNEL(0x7e, HPBDMA_SLAVE_SDHI0_RX), /* ch. 22 */
+};
+
+static struct hpb_dmae_pdata dma_platform_data __initdata = {
+	.slaves			= hpb_dmae_slaves,
+	.num_slaves		= ARRAY_SIZE(hpb_dmae_slaves),
+	.channels		= hpb_dmae_channels,
+	.num_channels		= ARRAY_SIZE(hpb_dmae_channels),
+	.ts_shift		= {
+		[XMIT_SZ_8BIT]	= 0,
+		[XMIT_SZ_16BIT]	= 1,
+		[XMIT_SZ_32BIT]	= 2,
+	},
+	.num_hw_channels	= 39,
+};
+
+static struct resource hpb_dmae_resources[] __initdata = {
+	/* Channel registers */
+	DEFINE_RES_MEM(0xffc08000, 0x1000),
+	/* Common registers */
+	DEFINE_RES_MEM(0xffc09000, 0x170),
+	/* Asynchronous reset registers */
+	DEFINE_RES_MEM(0xffc00300, 4),
+	/* Asynchronous mode registers */
+	DEFINE_RES_MEM(0xffc00400, 4),
+	/* IRQ for DMA channels */
+	DEFINE_RES_NAMED(gic_iid(0x7b), 5, NULL, IORESOURCE_IRQ),
+};
+
+static void __init r8a7778_register_hpb_dmae(void)
+{
+	platform_device_register_resndata(&platform_bus, "hpb-dma-engine", -1,
+					  hpb_dmae_resources,
+					  ARRAY_SIZE(hpb_dmae_resources),
+					  &dma_platform_data,
+					  sizeof(dma_platform_data));
+}
+
 void __init r8a7778_add_standard_devices(void)
 {
 	r8a7778_add_dt_devices();
@@ -366,6 +449,8 @@ void __init r8a7778_add_standard_devices(void)
 	r8a7778_register_hspi(0);
 	r8a7778_register_hspi(1);
 	r8a7778_register_hspi(2);
+
+	r8a7778_register_hpb_dmae();
 }
 
 void __init r8a7778_init_late(void)
-- 
cgit 


From a43e5bd76a4a3df58167d85e8020a1c9e566ad75 Mon Sep 17 00:00:00 2001
From: Max Filippov <max.filippov@cogentembedded.com>
Date: Sun, 25 Aug 2013 21:46:23 +0400
Subject: ARM: shmobile: r8a7779: add HPB-DMAC support

Add HPB-DMAC platform device on R8A7779 SoC along with its slave and channel
configurations (only for SDHI0 so far).

Signed-off-by: Max Filippov <max.filippov@cogentembedded.com>
[Sergei: moved *enum* declaring HPB-DMAC slave IDs from now removed <mach/dma.h>
to <mach/r8a7779.h>, removed #include <mach/dma.h> from setup-r8a7779.c, removed
SSI-related *enum* values and SSI-related data from hpb_dmae_slaves[] and
hpb_dmae_channels[], added ASYNCMDR.ASBTMD{20|24|43} and ASYNCMDR.ASMD{20|24|43}
fields/values, fixed comments to ASYNCMDR.ASBTMD2[123] and ASYNCMDR.ASMD2[123]
fields/values, renamed all the bit/field/value #define's to include 'HBP_DMAE_'
prefix to match the driver, moved comments after the element initializers of
hpb_dmae_channels[].]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/include/mach/r8a7779.h |   7 ++
 arch/arm/mach-shmobile/setup-r8a7779.c        | 154 ++++++++++++++++++++++++++
 2 files changed, 161 insertions(+)

diff --git a/arch/arm/mach-shmobile/include/mach/r8a7779.h b/arch/arm/mach-shmobile/include/mach/r8a7779.h
index 11c740047e14..31e87b92a9c3 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7779.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7779.h
@@ -6,6 +6,13 @@
 #include <linux/sh_eth.h>
 #include <linux/platform_data/camera-rcar.h>
 
+/* HPB-DMA slave IDs */
+enum {
+	HPBDMA_SLAVE_DUMMY,
+	HPBDMA_SLAVE_SDHI0_TX,
+	HPBDMA_SLAVE_SDHI0_RX,
+};
+
 struct platform_device;
 
 struct r8a7779_pm_ch {
diff --git a/arch/arm/mach-shmobile/setup-r8a7779.c b/arch/arm/mach-shmobile/setup-r8a7779.c
index ecd0148ee1e1..eacb2f783693 100644
--- a/arch/arm/mach-shmobile/setup-r8a7779.c
+++ b/arch/arm/mach-shmobile/setup-r8a7779.c
@@ -25,6 +25,7 @@
 #include <linux/irqchip.h>
 #include <linux/irqchip/arm-gic.h>
 #include <linux/of_platform.h>
+#include <linux/platform_data/dma-rcar-hpbdma.h>
 #include <linux/platform_data/gpio-rcar.h>
 #include <linux/platform_data/irq-renesas-intc-irqpin.h>
 #include <linux/platform_device.h>
@@ -632,6 +633,158 @@ static struct platform_device_info *vin_info_table[] __initdata = {
 	&vin3_info,
 };
 
+/* HPB-DMA */
+
+/* Asynchronous mode register bits */
+#define HPB_DMAE_ASYNCMDR_ASMD43_MASK		BIT(23)	/* MMC1 */
+#define HPB_DMAE_ASYNCMDR_ASMD43_SINGLE		BIT(23)	/* MMC1 */
+#define HPB_DMAE_ASYNCMDR_ASMD43_MULTI		0	/* MMC1 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD43_MASK		BIT(22)	/* MMC1 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD43_BURST	BIT(22)	/* MMC1 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD43_NBURST	0	/* MMC1 */
+#define HPB_DMAE_ASYNCMDR_ASMD24_MASK		BIT(21)	/* MMC0 */
+#define HPB_DMAE_ASYNCMDR_ASMD24_SINGLE		BIT(21)	/* MMC0 */
+#define HPB_DMAE_ASYNCMDR_ASMD24_MULTI		0	/* MMC0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD24_MASK		BIT(20)	/* MMC0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD24_BURST	BIT(20)	/* MMC0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD24_NBURST	0	/* MMC0 */
+#define HPB_DMAE_ASYNCMDR_ASMD41_MASK		BIT(19)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASMD41_SINGLE		BIT(19)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASMD41_MULTI		0	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD41_MASK		BIT(18)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD41_BURST	BIT(18)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD41_NBURST	0	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASMD40_MASK		BIT(17)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASMD40_SINGLE		BIT(17)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASMD40_MULTI		0	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD40_MASK		BIT(16)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD40_BURST	BIT(16)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD40_NBURST	0	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASMD39_MASK		BIT(15)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASMD39_SINGLE		BIT(15)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASMD39_MULTI		0	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD39_MASK		BIT(14)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD39_BURST	BIT(14)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD39_NBURST	0	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASMD27_MASK		BIT(13)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASMD27_SINGLE		BIT(13)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASMD27_MULTI		0	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD27_MASK		BIT(12)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD27_BURST	BIT(12)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD27_NBURST	0	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASMD26_MASK		BIT(11)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASMD26_SINGLE		BIT(11)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASMD26_MULTI		0	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD26_MASK		BIT(10)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD26_BURST	BIT(10)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD26_NBURST	0	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASMD25_MASK		BIT(9)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASMD25_SINGLE		BIT(9)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASMD25_MULTI		0	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD25_MASK		BIT(8)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD25_BURST	BIT(8)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD25_NBURST	0	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASMD23_MASK		BIT(7)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD23_SINGLE		BIT(7)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD23_MULTI		0	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD23_MASK		BIT(6)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD23_BURST	BIT(6)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD23_NBURST	0	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD22_MASK		BIT(5)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD22_SINGLE		BIT(5)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD22_MULTI		0	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD22_MASK		BIT(4)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD22_BURST	BIT(4)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD22_NBURST	0	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD21_MASK		BIT(3)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD21_SINGLE		BIT(3)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD21_MULTI		0	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD21_MASK		BIT(2)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD21_BURST	BIT(2)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD21_NBURST	0	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD20_MASK		BIT(1)	/* SDHI1 */
+#define HPB_DMAE_ASYNCMDR_ASMD20_SINGLE		BIT(1)	/* SDHI1 */
+#define HPB_DMAE_ASYNCMDR_ASMD20_MULTI		0	/* SDHI1 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD20_MASK		BIT(0)	/* SDHI1 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD20_BURST	BIT(0)	/* SDHI1 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD20_NBURST	0	/* SDHI1 */
+
+static const struct hpb_dmae_slave_config hpb_dmae_slaves[] = {
+	{
+		.id	= HPBDMA_SLAVE_SDHI0_TX,
+		.addr	= 0xffe4c000 + 0x30,
+		.dcr	= HPB_DMAE_DCR_SPDS_16BIT |
+			  HPB_DMAE_DCR_DMDL |
+			  HPB_DMAE_DCR_DPDS_16BIT,
+		.rstr	= HPB_DMAE_ASYNCRSTR_ASRST21 |
+			  HPB_DMAE_ASYNCRSTR_ASRST22 |
+			  HPB_DMAE_ASYNCRSTR_ASRST23,
+		.mdr	= HPB_DMAE_ASYNCMDR_ASMD21_SINGLE |
+			  HPB_DMAE_ASYNCMDR_ASBTMD21_NBURST,
+		.mdm	= HPB_DMAE_ASYNCMDR_ASMD21_MASK |
+			  HPB_DMAE_ASYNCMDR_ASBTMD21_MASK,
+		.port	= 0x0D0C,
+		.flags	= HPB_DMAE_SET_ASYNC_RESET | HPB_DMAE_SET_ASYNC_MODE,
+		.dma_ch	= 21,
+	}, {
+		.id	= HPBDMA_SLAVE_SDHI0_RX,
+		.addr	= 0xffe4c000 + 0x30,
+		.dcr	= HPB_DMAE_DCR_SMDL |
+			  HPB_DMAE_DCR_SPDS_16BIT |
+			  HPB_DMAE_DCR_DPDS_16BIT,
+		.rstr	= HPB_DMAE_ASYNCRSTR_ASRST21 |
+			  HPB_DMAE_ASYNCRSTR_ASRST22 |
+			  HPB_DMAE_ASYNCRSTR_ASRST23,
+		.mdr	= HPB_DMAE_ASYNCMDR_ASMD22_SINGLE |
+			  HPB_DMAE_ASYNCMDR_ASBTMD22_NBURST,
+		.mdm	= HPB_DMAE_ASYNCMDR_ASMD22_MASK |
+			  HPB_DMAE_ASYNCMDR_ASBTMD22_MASK,
+		.port	= 0x0D0C,
+		.flags	= HPB_DMAE_SET_ASYNC_RESET | HPB_DMAE_SET_ASYNC_MODE,
+		.dma_ch	= 22,
+	},
+};
+
+static const struct hpb_dmae_channel hpb_dmae_channels[] = {
+	HPB_DMAE_CHANNEL(0x93, HPBDMA_SLAVE_SDHI0_TX), /* ch. 21 */
+	HPB_DMAE_CHANNEL(0x93, HPBDMA_SLAVE_SDHI0_RX), /* ch. 22 */
+};
+
+static struct hpb_dmae_pdata dma_platform_data __initdata = {
+	.slaves			= hpb_dmae_slaves,
+	.num_slaves		= ARRAY_SIZE(hpb_dmae_slaves),
+	.channels		= hpb_dmae_channels,
+	.num_channels		= ARRAY_SIZE(hpb_dmae_channels),
+	.ts_shift		= {
+		[XMIT_SZ_8BIT]	= 0,
+		[XMIT_SZ_16BIT]	= 1,
+		[XMIT_SZ_32BIT]	= 2,
+	},
+	.num_hw_channels	= 44,
+};
+
+static struct resource hpb_dmae_resources[] __initdata = {
+	/* Channel registers */
+	DEFINE_RES_MEM(0xffc08000, 0x1000),
+	/* Common registers */
+	DEFINE_RES_MEM(0xffc09000, 0x170),
+	/* Asynchronous reset registers */
+	DEFINE_RES_MEM(0xffc00300, 4),
+	/* Asynchronous mode registers */
+	DEFINE_RES_MEM(0xffc00400, 4),
+	/* IRQ for DMA channels */
+	DEFINE_RES_NAMED(gic_iid(0x8e), 12, NULL, IORESOURCE_IRQ),
+};
+
+static void __init r8a7779_register_hpb_dmae(void)
+{
+	platform_device_register_resndata(&platform_bus, "hpb-dma-engine", -1,
+					  hpb_dmae_resources,
+					  ARRAY_SIZE(hpb_dmae_resources),
+					  &dma_platform_data,
+					  sizeof(dma_platform_data));
+}
+
 static struct platform_device *r8a7779_devices_dt[] __initdata = {
 	&scif0_device,
 	&scif1_device,
@@ -665,6 +818,7 @@ void __init r8a7779_add_standard_devices(void)
 			    ARRAY_SIZE(r8a7779_devices_dt));
 	platform_add_devices(r8a7779_standard_devices,
 			    ARRAY_SIZE(r8a7779_standard_devices));
+	r8a7779_register_hpb_dmae();
 }
 
 void __init r8a7779_add_ether_device(struct sh_eth_plat_data *pdata)
-- 
cgit 


From 159600807c809bc3773867d3d2b7826063b20c42 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 26 Sep 2013 19:20:57 +0200
Subject: ARM: shmobile: r8a7790: add I2C clocks and aliases for the DT mode

This patch adds clock definitions for the 4 I2C interfaces on r8a7790 and
clock aliases, suitable for the DT mode.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a7790.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/mach-shmobile/clock-r8a7790.c b/arch/arm/mach-shmobile/clock-r8a7790.c
index d99b87bc76ea..7661e898f376 100644
--- a/arch/arm/mach-shmobile/clock-r8a7790.c
+++ b/arch/arm/mach-shmobile/clock-r8a7790.c
@@ -52,6 +52,7 @@
 #define SMSTPCR5 0xe6150144
 #define SMSTPCR7 0xe615014c
 #define SMSTPCR8 0xe6150990
+#define SMSTPCR9 0xe6150994
 
 #define SDCKCR		0xE6150074
 #define SD2CKCR		0xE6150078
@@ -181,6 +182,7 @@ static struct clk div6_clks[DIV6_NR] = {
 
 /* MSTP */
 enum {
+	MSTP931, MSTP930, MSTP929, MSTP928,
 	MSTP813,
 	MSTP726, MSTP725, MSTP724, MSTP723, MSTP722, MSTP721, MSTP720,
 	MSTP717, MSTP716,
@@ -192,6 +194,10 @@ enum {
 };
 
 static struct clk mstp_clks[MSTP_NR] = {
+	[MSTP931] = SH_CLK_MSTP32(&hp_clk, SMSTPCR9, 31, 0), /* I2C0 */
+	[MSTP930] = SH_CLK_MSTP32(&hp_clk, SMSTPCR9, 30, 0), /* I2C1 */
+	[MSTP929] = SH_CLK_MSTP32(&hp_clk, SMSTPCR9, 29, 0), /* I2C2 */
+	[MSTP928] = SH_CLK_MSTP32(&hp_clk, SMSTPCR9, 28, 0), /* I2C3 */
 	[MSTP813] = SH_CLK_MSTP32(&p_clk, SMSTPCR8, 13, 0), /* Ether */
 	[MSTP726] = SH_CLK_MSTP32(&zx_clk, SMSTPCR7, 26, 0), /* LVDS0 */
 	[MSTP725] = SH_CLK_MSTP32(&zx_clk, SMSTPCR7, 25, 0), /* LVDS1 */
@@ -271,6 +277,10 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("sh-sci.7", &mstp_clks[MSTP720]),
 	CLKDEV_DEV_ID("sh-sci.8", &mstp_clks[MSTP717]),
 	CLKDEV_DEV_ID("sh-sci.9", &mstp_clks[MSTP716]),
+	CLKDEV_DEV_ID("e6508000.i2c", &mstp_clks[MSTP931]),
+	CLKDEV_DEV_ID("e6518000.i2c", &mstp_clks[MSTP930]),
+	CLKDEV_DEV_ID("e6530000.i2c", &mstp_clks[MSTP929]),
+	CLKDEV_DEV_ID("e6540000.i2c", &mstp_clks[MSTP928]),
 	CLKDEV_DEV_ID("r8a7790-ether", &mstp_clks[MSTP813]),
 	CLKDEV_DEV_ID("rcar_thermal", &mstp_clks[MSTP522]),
 	CLKDEV_DEV_ID("ee200000.mmcif", &mstp_clks[MSTP315]),
-- 
cgit 


From 8ceea7bd9757cb90f63f16b07a6d2a022e9c45d8 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 26 Sep 2013 19:30:02 +0200
Subject: ARM: shmobile: r8a73a4: add a clock alias for the DMAC in DT mode

Devices, initialised from the Device Tree and from platform code usually
have different names. This patch adds a clock alias for DMAC on r8a73a4
in DT mode.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a73a4.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-shmobile/clock-r8a73a4.c b/arch/arm/mach-shmobile/clock-r8a73a4.c
index 357b9bca7940..74841edf04eb 100644
--- a/arch/arm/mach-shmobile/clock-r8a73a4.c
+++ b/arch/arm/mach-shmobile/clock-r8a73a4.c
@@ -580,6 +580,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP216]),
 	CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP217]),
 	CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]),
+	CLKDEV_DEV_ID("e6700020.dma-controller", &mstp_clks[MSTP218]),
 	CLKDEV_DEV_ID("rcar_thermal", &mstp_clks[MSTP522]),
 	CLKDEV_DEV_ID("e6520000.i2c", &mstp_clks[MSTP300]),
 	CLKDEV_DEV_ID("sh_mmcif.1", &mstp_clks[MSTP305]),
-- 
cgit 


From 629cc70ddac35520688b3a8bd165435c886e78eb Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Thu, 12 Sep 2013 09:32:49 +0900
Subject: ARM: shmobile: Break out R-Car Gen2 setup code

Move arch timer workaround code and boot mode pin
handling from setup-r8a7790.c to setup-rcar-gen2.c.

With this in place the same code can be used on
other R-Car Generation 2 devices such as r8a7791.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/Makefile                 |  1 +
 arch/arm/mach-shmobile/board-lager-reference.c  |  2 +-
 arch/arm/mach-shmobile/board-lager.c            |  2 +-
 arch/arm/mach-shmobile/clock-r8a7790.c          |  2 +-
 arch/arm/mach-shmobile/include/mach/r8a7790.h   |  6 +-
 arch/arm/mach-shmobile/include/mach/rcar-gen2.h |  8 +++
 arch/arm/mach-shmobile/setup-r8a7790.c          | 68 +-----------------
 arch/arm/mach-shmobile/setup-rcar-gen2.c        | 91 +++++++++++++++++++++++++
 8 files changed, 106 insertions(+), 74 deletions(-)
 create mode 100644 arch/arm/mach-shmobile/include/mach/rcar-gen2.h
 create mode 100644 arch/arm/mach-shmobile/setup-rcar-gen2.c

diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index d30ec1a427ec..6b7a02ee8b93 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_ARCH_R8A7740)	+= setup-r8a7740.o
 obj-$(CONFIG_ARCH_R8A7778)	+= setup-r8a7778.o
 obj-$(CONFIG_ARCH_R8A7779)	+= setup-r8a7779.o
 obj-$(CONFIG_ARCH_R8A7790)	+= setup-r8a7790.o
+obj-$(CONFIG_ARCH_R8A7790)	+= setup-r8a7790.o setup-rcar-gen2.o
 obj-$(CONFIG_ARCH_R8A7791)	+= setup-r8a7791.o
 obj-$(CONFIG_ARCH_EMEV2)	+= setup-emev2.o
 
diff --git a/arch/arm/mach-shmobile/board-lager-reference.c b/arch/arm/mach-shmobile/board-lager-reference.c
index d39a91b3ba48..1a1a4a888632 100644
--- a/arch/arm/mach-shmobile/board-lager-reference.c
+++ b/arch/arm/mach-shmobile/board-lager-reference.c
@@ -40,7 +40,7 @@ static const char *lager_boards_compat_dt[] __initdata = {
 DT_MACHINE_START(LAGER_DT, "lager")
 	.smp		= smp_ops(r8a7790_smp_ops),
 	.init_early	= r8a7790_init_early,
+	.init_time	= rcar_gen2_timer_init,
 	.init_machine	= lager_add_standard_devices,
-	.init_time	= r8a7790_timer_init,
 	.dt_compat	= lager_boards_compat_dt,
 MACHINE_END
diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index ef3baaa79e6d..230bc9d67852 100644
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -163,7 +163,7 @@ static const char *lager_boards_compat_dt[] __initdata = {
 DT_MACHINE_START(LAGER_DT, "lager")
 	.smp		= smp_ops(r8a7790_smp_ops),
 	.init_early	= r8a7790_init_early,
-	.init_time	= r8a7790_timer_init,
+	.init_time	= rcar_gen2_timer_init,
 	.init_machine	= lager_add_standard_devices,
 	.dt_compat	= lager_boards_compat_dt,
 MACHINE_END
diff --git a/arch/arm/mach-shmobile/clock-r8a7790.c b/arch/arm/mach-shmobile/clock-r8a7790.c
index 7661e898f376..a64f965c7da1 100644
--- a/arch/arm/mach-shmobile/clock-r8a7790.c
+++ b/arch/arm/mach-shmobile/clock-r8a7790.c
@@ -310,7 +310,7 @@ static struct clk_lookup lookups[] = {
 
 void __init r8a7790_clock_init(void)
 {
-	u32 mode = r8a7790_read_mode_pins();
+	u32 mode = rcar_gen2_read_mode_pins();
 	int k, ret = 0;
 
 	switch (mode & (MD(14) | MD(13))) {
diff --git a/arch/arm/mach-shmobile/include/mach/r8a7790.h b/arch/arm/mach-shmobile/include/mach/r8a7790.h
index 79e731c83e50..5fbfa28b40b6 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7790.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7790.h
@@ -1,15 +1,13 @@
 #ifndef __ASM_R8A7790_H__
 #define __ASM_R8A7790_H__
 
+#include <mach/rcar-gen2.h>
+
 void r8a7790_add_standard_devices(void);
 void r8a7790_add_dt_devices(void);
 void r8a7790_clock_init(void);
 void r8a7790_pinmux_init(void);
 void r8a7790_init_early(void);
-void r8a7790_timer_init(void);
 extern struct smp_operations r8a7790_smp_ops;
 
-#define MD(nr) BIT(nr)
-u32 r8a7790_read_mode_pins(void);
-
 #endif /* __ASM_R8A7790_H__ */
diff --git a/arch/arm/mach-shmobile/include/mach/rcar-gen2.h b/arch/arm/mach-shmobile/include/mach/rcar-gen2.h
new file mode 100644
index 000000000000..43f606eb2d82
--- /dev/null
+++ b/arch/arm/mach-shmobile/include/mach/rcar-gen2.h
@@ -0,0 +1,8 @@
+#ifndef __ASM_RCAR_GEN2_H__
+#define __ASM_RCAR_GEN2_H__
+
+void rcar_gen2_timer_init(void);
+#define MD(nr) BIT(nr)
+u32 rcar_gen2_read_mode_pins(void);
+
+#endif /* __ASM_RCAR_GEN2_H__ */
diff --git a/arch/arm/mach-shmobile/setup-r8a7790.c b/arch/arm/mach-shmobile/setup-r8a7790.c
index c7e24eff9ba2..c47bcebbcb00 100644
--- a/arch/arm/mach-shmobile/setup-r8a7790.c
+++ b/arch/arm/mach-shmobile/setup-r8a7790.c
@@ -18,7 +18,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
-#include <linux/clocksource.h>
 #include <linux/irq.h>
 #include <linux/kernel.h>
 #include <linux/of_platform.h>
@@ -203,71 +202,6 @@ void __init r8a7790_add_standard_devices(void)
 	r8a7790_register_thermal();
 }
 
-#define MODEMR 0xe6160060
-
-u32 __init r8a7790_read_mode_pins(void)
-{
-	void __iomem *modemr = ioremap_nocache(MODEMR, 4);
-	u32 mode;
-
-	BUG_ON(!modemr);
-	mode = ioread32(modemr);
-	iounmap(modemr);
-
-	return mode;
-}
-
-#define CNTCR 0
-#define CNTFID0 0x20
-
-void __init r8a7790_timer_init(void)
-{
-#ifdef CONFIG_ARM_ARCH_TIMER
-	u32 mode = r8a7790_read_mode_pins();
-	void __iomem *base;
-	int extal_mhz = 0;
-	u32 freq;
-
-	/* At Linux boot time the r8a7790 arch timer comes up
-	 * with the counter disabled. Moreover, it may also report
-	 * a potentially incorrect fixed 13 MHz frequency. To be
-	 * correct these registers need to be updated to use the
-	 * frequency EXTAL / 2 which can be determined by the MD pins.
-	 */
-
-	switch (mode & (MD(14) | MD(13))) {
-	case 0:
-		extal_mhz = 15;
-		break;
-	case MD(13):
-		extal_mhz = 20;
-		break;
-	case MD(14):
-		extal_mhz = 26;
-		break;
-	case MD(13) | MD(14):
-		extal_mhz = 30;
-		break;
-	}
-
-	/* The arch timer frequency equals EXTAL / 2 */
-	freq = extal_mhz * (1000000 / 2);
-
-	/* Remap "armgcnt address map" space */
-	base = ioremap(0xe6080000, PAGE_SIZE);
-
-	/* Update registers with correct frequency */
-	iowrite32(freq, base + CNTFID0);
-	asm volatile("mcr p15, 0, %0, c14, c0, 0" : : "r" (freq));
-
-	/* make sure arch timer is started by setting bit 0 of CNTCR */
-	iowrite32(1, base + CNTCR);
-	iounmap(base);
-#endif /* CONFIG_ARM_ARCH_TIMER */
-
-	clocksource_of_init();
-}
-
 void __init r8a7790_init_early(void)
 {
 #ifndef CONFIG_ARM_ARCH_TIMER
@@ -285,7 +219,7 @@ static const char * const r8a7790_boards_compat_dt[] __initconst = {
 DT_MACHINE_START(R8A7790_DT, "Generic R8A7790 (Flattened Device Tree)")
 	.smp		= smp_ops(r8a7790_smp_ops),
 	.init_early	= r8a7790_init_early,
-	.init_time	= r8a7790_timer_init,
+	.init_time	= rcar_gen2_timer_init,
 	.dt_compat	= r8a7790_boards_compat_dt,
 MACHINE_END
 #endif /* CONFIG_USE_OF */
diff --git a/arch/arm/mach-shmobile/setup-rcar-gen2.c b/arch/arm/mach-shmobile/setup-rcar-gen2.c
new file mode 100644
index 000000000000..5734c24bf6c7
--- /dev/null
+++ b/arch/arm/mach-shmobile/setup-rcar-gen2.c
@@ -0,0 +1,91 @@
+/*
+ * R-Car Generation 2 support
+ *
+ * Copyright (C) 2013  Renesas Solutions Corp.
+ * Copyright (C) 2013  Magnus Damm
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/clocksource.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <mach/common.h>
+#include <mach/rcar-gen2.h>
+#include <asm/mach/arch.h>
+
+#define MODEMR 0xe6160060
+
+u32 __init rcar_gen2_read_mode_pins(void)
+{
+	void __iomem *modemr = ioremap_nocache(MODEMR, 4);
+	u32 mode;
+
+	BUG_ON(!modemr);
+	mode = ioread32(modemr);
+	iounmap(modemr);
+
+	return mode;
+}
+
+#define CNTCR 0
+#define CNTFID0 0x20
+
+void __init rcar_gen2_timer_init(void)
+{
+#ifdef CONFIG_ARM_ARCH_TIMER
+	u32 mode = rcar_gen2_read_mode_pins();
+	void __iomem *base;
+	int extal_mhz = 0;
+	u32 freq;
+
+	/* At Linux boot time the r8a7790 arch timer comes up
+	 * with the counter disabled. Moreover, it may also report
+	 * a potentially incorrect fixed 13 MHz frequency. To be
+	 * correct these registers need to be updated to use the
+	 * frequency EXTAL / 2 which can be determined by the MD pins.
+	 */
+
+	switch (mode & (MD(14) | MD(13))) {
+	case 0:
+		extal_mhz = 15;
+		break;
+	case MD(13):
+		extal_mhz = 20;
+		break;
+	case MD(14):
+		extal_mhz = 26;
+		break;
+	case MD(13) | MD(14):
+		extal_mhz = 30;
+		break;
+	}
+
+	/* The arch timer frequency equals EXTAL / 2 */
+	freq = extal_mhz * (1000000 / 2);
+
+	/* Remap "armgcnt address map" space */
+	base = ioremap(0xe6080000, PAGE_SIZE);
+
+	/* Update registers with correct frequency */
+	iowrite32(freq, base + CNTFID0);
+	asm volatile("mcr p15, 0, %0, c14, c0, 0" : : "r" (freq));
+
+	/* make sure arch timer is started by setting bit 0 of CNTCR */
+	iowrite32(1, base + CNTCR);
+	iounmap(base);
+#endif /* CONFIG_ARM_ARCH_TIMER */
+
+	clocksource_of_init();
+}
-- 
cgit 


From 44a268e2a652eab3c21e282b6418a8c9ea279626 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 1 Oct 2013 17:11:53 +0900
Subject: ARM: shmobile: Introduce r8a7791_add_standard_devices()

Introduce the function r8a7791_add_standard_devices() that
follows the same style as other mach-shmobile SoC code and
allows C version of board code to add on-chip devices.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/include/mach/r8a7791.h | 1 +
 arch/arm/mach-shmobile/setup-r8a7791.c        | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/arch/arm/mach-shmobile/include/mach/r8a7791.h b/arch/arm/mach-shmobile/include/mach/r8a7791.h
index 2e6d66131083..2a86a5394672 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7791.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7791.h
@@ -1,6 +1,7 @@
 #ifndef __ASM_R8A7791_H__
 #define __ASM_R8A7791_H__
 
+void r8a7791_add_standard_devices(void);
 void r8a7791_add_dt_devices(void);
 void r8a7791_clock_init(void);
 void r8a7791_init_early(void);
diff --git a/arch/arm/mach-shmobile/setup-r8a7791.c b/arch/arm/mach-shmobile/setup-r8a7791.c
index b56399d2e1de..350dfc4918e3 100644
--- a/arch/arm/mach-shmobile/setup-r8a7791.c
+++ b/arch/arm/mach-shmobile/setup-r8a7791.c
@@ -129,6 +129,11 @@ void __init r8a7791_add_dt_devices(void)
 	r8a7791_register_cmt(00);
 }
 
+void __init r8a7791_add_standard_devices(void)
+{
+	r8a7791_add_dt_devices();
+}
+
 void __init r8a7791_init_early(void)
 {
 #ifndef CONFIG_ARM_ARCH_TIMER
-- 
cgit 


From 1e4953d817712e52616d9a40460435eb8881d32d Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 1 Oct 2013 17:12:19 +0900
Subject: ARM: shmobile: r8a7791 IRQC platform device support

Add a platform device for the r8a7791 IRQC hardware
driving IRQ pins IRQ0 to IRQ9. The Linux interrupt
number is statically assigned to allow board code
written in C to make use of static interrupt numbers.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/setup-r8a7791.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm/mach-shmobile/setup-r8a7791.c b/arch/arm/mach-shmobile/setup-r8a7791.c
index 350dfc4918e3..ba4fa3edf44f 100644
--- a/arch/arm/mach-shmobile/setup-r8a7791.c
+++ b/arch/arm/mach-shmobile/setup-r8a7791.c
@@ -22,6 +22,7 @@
 #include <linux/irq.h>
 #include <linux/kernel.h>
 #include <linux/of_platform.h>
+#include <linux/platform_data/irq-renesas-irqc.h>
 #include <linux/serial_sci.h>
 #include <linux/sh_timer.h>
 #include <mach/common.h>
@@ -109,6 +110,31 @@ static const struct resource cmt00_resources[] __initconst = {
 					  &cmt##idx##_platform_data,	\
 					  sizeof(struct sh_timer_config))
 
+static struct renesas_irqc_config irqc0_data = {
+	.irq_base = irq_pin(0), /* IRQ0 -> IRQ9 */
+};
+
+static struct resource irqc0_resources[] = {
+	DEFINE_RES_MEM(0xe61c0000, 0x200), /* IRQC Event Detector Block_0 */
+	DEFINE_RES_IRQ(gic_spi(0)), /* IRQ0 */
+	DEFINE_RES_IRQ(gic_spi(1)), /* IRQ1 */
+	DEFINE_RES_IRQ(gic_spi(2)), /* IRQ2 */
+	DEFINE_RES_IRQ(gic_spi(3)), /* IRQ3 */
+	DEFINE_RES_IRQ(gic_spi(12)), /* IRQ4 */
+	DEFINE_RES_IRQ(gic_spi(13)), /* IRQ5 */
+	DEFINE_RES_IRQ(gic_spi(14)), /* IRQ6 */
+	DEFINE_RES_IRQ(gic_spi(15)), /* IRQ7 */
+	DEFINE_RES_IRQ(gic_spi(16)), /* IRQ8 */
+	DEFINE_RES_IRQ(gic_spi(17)), /* IRQ9 */
+};
+
+#define r8a7791_register_irqc(idx)					\
+	platform_device_register_resndata(&platform_bus, "renesas_irqc", \
+					  idx, irqc##idx##_resources,	\
+					  ARRAY_SIZE(irqc##idx##_resources), \
+					  &irqc##idx##_data,		\
+					  sizeof(struct renesas_irqc_config))
+
 void __init r8a7791_add_dt_devices(void)
 {
 	r8a7791_register_scif(SCIFA0);
@@ -132,6 +158,7 @@ void __init r8a7791_add_dt_devices(void)
 void __init r8a7791_add_standard_devices(void)
 {
 	r8a7791_add_dt_devices();
+	r8a7791_register_irqc(0);
 }
 
 void __init r8a7791_init_early(void)
-- 
cgit 


From ca1e6f22a0ab5ae6ec2114993a23d5814f0799c7 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 1 Oct 2013 17:12:48 +0900
Subject: ARM: shmobile: r8a7791 Arch timer workaround

Make use of the R-Car Gen2 arch timer workaround on r8a7791.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/Makefile        | 2 +-
 arch/arm/mach-shmobile/setup-r8a7791.c | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 6b7a02ee8b93..3c37e8271dfe 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -16,7 +16,7 @@ obj-$(CONFIG_ARCH_R8A7778)	+= setup-r8a7778.o
 obj-$(CONFIG_ARCH_R8A7779)	+= setup-r8a7779.o
 obj-$(CONFIG_ARCH_R8A7790)	+= setup-r8a7790.o
 obj-$(CONFIG_ARCH_R8A7790)	+= setup-r8a7790.o setup-rcar-gen2.o
-obj-$(CONFIG_ARCH_R8A7791)	+= setup-r8a7791.o
+obj-$(CONFIG_ARCH_R8A7791)	+= setup-r8a7791.o setup-rcar-gen2.o
 obj-$(CONFIG_ARCH_EMEV2)	+= setup-emev2.o
 
 # Clock objects
diff --git a/arch/arm/mach-shmobile/setup-r8a7791.c b/arch/arm/mach-shmobile/setup-r8a7791.c
index ba4fa3edf44f..cb3859b4cc95 100644
--- a/arch/arm/mach-shmobile/setup-r8a7791.c
+++ b/arch/arm/mach-shmobile/setup-r8a7791.c
@@ -28,6 +28,7 @@
 #include <mach/common.h>
 #include <mach/irqs.h>
 #include <mach/r8a7791.h>
+#include <mach/rcar-gen2.h>
 #include <asm/mach/arch.h>
 
 #define SCIF_COMMON(scif_type, baseaddr, irq)			\
@@ -176,6 +177,7 @@ static const char *r8a7791_boards_compat_dt[] __initdata = {
 
 DT_MACHINE_START(R8A7791_DT, "Generic R8A7791 (Flattened Device Tree)")
 	.init_early	= r8a7791_init_early,
+	.init_time	= rcar_gen2_timer_init,
 	.dt_compat	= r8a7791_boards_compat_dt,
 MACHINE_END
 #endif /* CONFIG_USE_OF */
-- 
cgit 


From 0086df273cf8c7e270f8930cc42d7dad15060516 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Thu, 19 Sep 2013 05:11:11 +0900
Subject: ARM: shmobile: Initial r7s72100 SoC support

Add initial support for the r7272100 SoC including:
 - Single Cortex-A9 CPU Core
 - GIC

No static virtual mappings are used, all the components
make use of ioremap(). DT_MACHINE_START is still wrapped
in CONFIG_USE_OF to match other mach-shmobile code.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/r7s72100.dtsi                |  36 +++++
 arch/arm/mach-shmobile/Kconfig                 |   6 +
 arch/arm/mach-shmobile/Makefile                |   2 +
 arch/arm/mach-shmobile/clock-r7s72100.c        | 194 +++++++++++++++++++++++++
 arch/arm/mach-shmobile/include/mach/r7s72100.h |   7 +
 arch/arm/mach-shmobile/setup-r7s72100.c        |  43 ++++++
 6 files changed, 288 insertions(+)
 create mode 100644 arch/arm/boot/dts/r7s72100.dtsi
 create mode 100644 arch/arm/mach-shmobile/clock-r7s72100.c
 create mode 100644 arch/arm/mach-shmobile/include/mach/r7s72100.h
 create mode 100644 arch/arm/mach-shmobile/setup-r7s72100.c

diff --git a/arch/arm/boot/dts/r7s72100.dtsi b/arch/arm/boot/dts/r7s72100.dtsi
new file mode 100644
index 000000000000..46b82aa7dc4e
--- /dev/null
+++ b/arch/arm/boot/dts/r7s72100.dtsi
@@ -0,0 +1,36 @@
+/*
+ * Device Tree Source for the r7s72100 SoC
+ *
+ * Copyright (C) 2013 Renesas Solutions Corp.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/ {
+	compatible = "renesas,r7s72100";
+	interrupt-parent = <&gic>;
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			reg = <0>;
+		};
+	};
+
+	gic: interrupt-controller@e8201000 {
+		compatible = "arm,cortex-a9-gic";
+		#interrupt-cells = <3>;
+		#address-cells = <0>;
+		interrupt-controller;
+		reg = <0xe8201000 0x1000>,
+			<0xe8202000 0x1000>;
+	};
+};
diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index b45240512ce0..5dd5f9f7897a 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -113,6 +113,12 @@ config ARCH_EMEV2
 	select ARM_GIC
 	select CPU_V7
 
+config ARCH_R7S72100
+	bool "RZ/A1H (R7S72100)"
+	select ARM_GIC
+	select CPU_V7
+	select SH_CLK_CPG
+
 comment "SH-Mobile Board Type"
 
 config MACH_APE6EVM
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 3c37e8271dfe..95e48d129ddc 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -18,6 +18,7 @@ obj-$(CONFIG_ARCH_R8A7790)	+= setup-r8a7790.o
 obj-$(CONFIG_ARCH_R8A7790)	+= setup-r8a7790.o setup-rcar-gen2.o
 obj-$(CONFIG_ARCH_R8A7791)	+= setup-r8a7791.o setup-rcar-gen2.o
 obj-$(CONFIG_ARCH_EMEV2)	+= setup-emev2.o
+obj-$(CONFIG_ARCH_R7S72100)	+= setup-r7s72100.o
 
 # Clock objects
 ifndef CONFIG_COMMON_CLK
@@ -31,6 +32,7 @@ obj-$(CONFIG_ARCH_R8A7779)	+= clock-r8a7779.o
 obj-$(CONFIG_ARCH_R8A7790)	+= clock-r8a7790.o
 obj-$(CONFIG_ARCH_R8A7791)	+= clock-r8a7791.o
 obj-$(CONFIG_ARCH_EMEV2)	+= clock-emev2.o
+obj-$(CONFIG_ARCH_R7S72100)	+= clock-r7s72100.o
 endif
 
 # SMP objects
diff --git a/arch/arm/mach-shmobile/clock-r7s72100.c b/arch/arm/mach-shmobile/clock-r7s72100.c
new file mode 100644
index 000000000000..1e71094f809d
--- /dev/null
+++ b/arch/arm/mach-shmobile/clock-r7s72100.c
@@ -0,0 +1,194 @@
+/*
+ * r7a72100 clock framework support
+ *
+ * Copyright (C) 2013  Renesas Solutions Corp.
+ * Copyright (C) 2012  Phil Edworthy
+ * Copyright (C) 2011  Magnus Damm
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/sh_clk.h>
+#include <linux/clkdev.h>
+#include <mach/common.h>
+#include <mach/r7s72100.h>
+
+/* registers */
+#define FRQCR		0xfcfe0010
+#define FRQCR2		0xfcfe0014
+#define STBCR3		0xfcfe0420
+#define STBCR4		0xfcfe0424
+
+#define PLL_RATE 30
+
+static struct clk_mapping cpg_mapping = {
+	.phys	= 0xfcfe0000,
+	.len	= 0x1000,
+};
+
+/* Fixed 32 KHz root clock for RTC */
+static struct clk r_clk = {
+	.rate           = 32768,
+};
+
+/*
+ * Default rate for the root input clock, reset this with clk_set_rate()
+ * from the platform code.
+ */
+static struct clk extal_clk = {
+	.rate		= 13330000,
+	.mapping	= &cpg_mapping,
+};
+
+static unsigned long pll_recalc(struct clk *clk)
+{
+	return clk->parent->rate * PLL_RATE;
+}
+
+static struct sh_clk_ops pll_clk_ops = {
+	.recalc		= pll_recalc,
+};
+
+static struct clk pll_clk = {
+	.ops		= &pll_clk_ops,
+	.parent		= &extal_clk,
+	.flags		= CLK_ENABLE_ON_INIT,
+};
+
+static unsigned long bus_recalc(struct clk *clk)
+{
+	return clk->parent->rate * 2 / 3;
+}
+
+static struct sh_clk_ops bus_clk_ops = {
+	.recalc		= bus_recalc,
+};
+
+static struct clk bus_clk = {
+	.ops		= &bus_clk_ops,
+	.parent		= &pll_clk,
+	.flags		= CLK_ENABLE_ON_INIT,
+};
+
+static unsigned long peripheral0_recalc(struct clk *clk)
+{
+	return clk->parent->rate / 12;
+}
+
+static struct sh_clk_ops peripheral0_clk_ops = {
+	.recalc		= peripheral0_recalc,
+};
+
+static struct clk peripheral0_clk = {
+	.ops		= &peripheral0_clk_ops,
+	.parent		= &pll_clk,
+	.flags		= CLK_ENABLE_ON_INIT,
+};
+
+static unsigned long peripheral1_recalc(struct clk *clk)
+{
+	return clk->parent->rate / 6;
+}
+
+static struct sh_clk_ops peripheral1_clk_ops = {
+	.recalc		= peripheral1_recalc,
+};
+
+static struct clk peripheral1_clk = {
+	.ops		= &peripheral1_clk_ops,
+	.parent		= &pll_clk,
+	.flags		= CLK_ENABLE_ON_INIT,
+};
+
+struct clk *main_clks[] = {
+	&r_clk,
+	&extal_clk,
+	&pll_clk,
+	&bus_clk,
+	&peripheral0_clk,
+	&peripheral1_clk,
+};
+
+static int div2[] = { 1, 3, 0, 3 }; /* 1, 2/3, reserve, 1/3 */
+static int multipliers[] = { 1, 2, 1, 1 };
+
+static struct clk_div_mult_table div4_div_mult_table = {
+	.divisors = div2,
+	.nr_divisors = ARRAY_SIZE(div2),
+	.multipliers = multipliers,
+	.nr_multipliers = ARRAY_SIZE(multipliers),
+};
+
+static struct clk_div4_table div4_table = {
+	.div_mult_table = &div4_div_mult_table,
+};
+
+enum { DIV4_I,
+	DIV4_NR };
+
+#define DIV4(_reg, _bit, _mask, _flags) \
+	SH_CLK_DIV4(&pll_clk, _reg, _bit, _mask, _flags)
+
+/* The mask field specifies the div2 entries that are valid */
+struct clk div4_clks[DIV4_NR] = {
+	[DIV4_I]  = DIV4(FRQCR, 8, 0xB, CLK_ENABLE_REG_16BIT
+					| CLK_ENABLE_ON_INIT),
+};
+
+enum { MSTP47, MSTP46, MSTP45, MSTP44, MSTP43, MSTP42, MSTP41, MSTP40,
+	MSTP33,	MSTP_NR };
+
+static struct clk mstp_clks[MSTP_NR] = {
+	[MSTP47] = SH_CLK_MSTP8(&peripheral1_clk, STBCR4, 7, 0), /* SCIF0 */
+	[MSTP46] = SH_CLK_MSTP8(&peripheral1_clk, STBCR4, 6, 0), /* SCIF1 */
+	[MSTP45] = SH_CLK_MSTP8(&peripheral1_clk, STBCR4, 5, 0), /* SCIF2 */
+	[MSTP44] = SH_CLK_MSTP8(&peripheral1_clk, STBCR4, 4, 0), /* SCIF3 */
+	[MSTP43] = SH_CLK_MSTP8(&peripheral1_clk, STBCR4, 3, 0), /* SCIF4 */
+	[MSTP42] = SH_CLK_MSTP8(&peripheral1_clk, STBCR4, 2, 0), /* SCIF5 */
+	[MSTP41] = SH_CLK_MSTP8(&peripheral1_clk, STBCR4, 1, 0), /* SCIF6 */
+	[MSTP40] = SH_CLK_MSTP8(&peripheral1_clk, STBCR4, 0, 0), /* SCIF7 */
+	[MSTP33] = SH_CLK_MSTP8(&peripheral0_clk, STBCR3, 3, 0), /* MTU2 */
+};
+
+static struct clk_lookup lookups[] = {
+	/* main clocks */
+	CLKDEV_CON_ID("rclk", &r_clk),
+	CLKDEV_CON_ID("extal", &extal_clk),
+	CLKDEV_CON_ID("pll_clk", &pll_clk),
+	CLKDEV_CON_ID("peripheral_clk", &peripheral1_clk),
+
+	/* DIV4 clocks */
+	CLKDEV_CON_ID("cpu_clk", &div4_clks[DIV4_I]),
+
+	/* MSTP clocks */
+};
+
+void __init r7s72100_clock_init(void)
+{
+	int k, ret = 0;
+
+	for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++)
+		ret = clk_register(main_clks[k]);
+
+	clkdev_add_table(lookups, ARRAY_SIZE(lookups));
+
+	if (!ret)
+		ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table);
+
+	if (!ret)
+		ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
+
+	if (!ret)
+		shmobile_clk_init();
+	else
+		panic("failed to setup rza1 clocks\n");
+}
diff --git a/arch/arm/mach-shmobile/include/mach/r7s72100.h b/arch/arm/mach-shmobile/include/mach/r7s72100.h
new file mode 100644
index 000000000000..f78062e98bd4
--- /dev/null
+++ b/arch/arm/mach-shmobile/include/mach/r7s72100.h
@@ -0,0 +1,7 @@
+#ifndef __ASM_R7S72100_H__
+#define __ASM_R7S72100_H__
+
+void r7s72100_clock_init(void);
+void r7s72100_init_early(void);
+
+#endif /* __ASM_R7S72100_H__ */
diff --git a/arch/arm/mach-shmobile/setup-r7s72100.c b/arch/arm/mach-shmobile/setup-r7s72100.c
new file mode 100644
index 000000000000..c1aded0984a8
--- /dev/null
+++ b/arch/arm/mach-shmobile/setup-r7s72100.c
@@ -0,0 +1,43 @@
+/*
+ * r7s72100 processor support
+ *
+ * Copyright (C) 2013  Renesas Solutions Corp.
+ * Copyright (C) 2013  Magnus Damm
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/of_platform.h>
+#include <mach/common.h>
+#include <mach/r7s72100.h>
+#include <asm/mach/arch.h>
+
+void __init r7s72100_init_early(void)
+{
+	shmobile_setup_delay(400, 1, 3); /* Cortex-A9 @ 400MHz */
+}
+
+#ifdef CONFIG_USE_OF
+static const char *r7s72100_boards_compat_dt[] __initdata = {
+	"renesas,r7s72100",
+	NULL,
+};
+
+DT_MACHINE_START(R7S72100_DT, "Generic R7S72100 (Flattened Device Tree)")
+	.init_early	= r7s72100_init_early,
+	.dt_compat	= r7s72100_boards_compat_dt,
+MACHINE_END
+#endif /* CONFIG_USE_OF */
-- 
cgit 


From 77df55c66da2ad45ad18111194d192011dbeffb9 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Thu, 19 Sep 2013 05:11:20 +0900
Subject: ARM: shmobile: r7s72100 SCIF support

Add SCIF serial port support to the r7s72100 SoC by
adding platform devices for SCIF0 -> SCIF7 together with
clock bindings. DT device description is excluded at
this point since such bindings are still under
development.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r7s72100.c        |  8 +++++
 arch/arm/mach-shmobile/include/mach/r7s72100.h |  1 +
 arch/arm/mach-shmobile/setup-r7s72100.c        | 45 ++++++++++++++++++++++++++
 3 files changed, 54 insertions(+)

diff --git a/arch/arm/mach-shmobile/clock-r7s72100.c b/arch/arm/mach-shmobile/clock-r7s72100.c
index 1e71094f809d..4aba20ca127e 100644
--- a/arch/arm/mach-shmobile/clock-r7s72100.c
+++ b/arch/arm/mach-shmobile/clock-r7s72100.c
@@ -170,6 +170,14 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_CON_ID("cpu_clk", &div4_clks[DIV4_I]),
 
 	/* MSTP clocks */
+	CLKDEV_ICK_ID("sci_fck", "sh-sci.0", &mstp_clks[MSTP47]),
+	CLKDEV_ICK_ID("sci_fck", "sh-sci.1", &mstp_clks[MSTP46]),
+	CLKDEV_ICK_ID("sci_fck", "sh-sci.2", &mstp_clks[MSTP45]),
+	CLKDEV_ICK_ID("sci_fck", "sh-sci.3", &mstp_clks[MSTP44]),
+	CLKDEV_ICK_ID("sci_fck", "sh-sci.4", &mstp_clks[MSTP43]),
+	CLKDEV_ICK_ID("sci_fck", "sh-sci.5", &mstp_clks[MSTP42]),
+	CLKDEV_ICK_ID("sci_fck", "sh-sci.6", &mstp_clks[MSTP41]),
+	CLKDEV_ICK_ID("sci_fck", "sh-sci.7", &mstp_clks[MSTP40]),
 };
 
 void __init r7s72100_clock_init(void)
diff --git a/arch/arm/mach-shmobile/include/mach/r7s72100.h b/arch/arm/mach-shmobile/include/mach/r7s72100.h
index f78062e98bd4..5f34b20ecd4a 100644
--- a/arch/arm/mach-shmobile/include/mach/r7s72100.h
+++ b/arch/arm/mach-shmobile/include/mach/r7s72100.h
@@ -1,6 +1,7 @@
 #ifndef __ASM_R7S72100_H__
 #define __ASM_R7S72100_H__
 
+void r7s72100_add_dt_devices(void);
 void r7s72100_clock_init(void);
 void r7s72100_init_early(void);
 
diff --git a/arch/arm/mach-shmobile/setup-r7s72100.c b/arch/arm/mach-shmobile/setup-r7s72100.c
index c1aded0984a8..d4eb509a1c87 100644
--- a/arch/arm/mach-shmobile/setup-r7s72100.c
+++ b/arch/arm/mach-shmobile/setup-r7s72100.c
@@ -21,10 +21,55 @@
 #include <linux/irq.h>
 #include <linux/kernel.h>
 #include <linux/of_platform.h>
+#include <linux/serial_sci.h>
 #include <mach/common.h>
+#include <mach/irqs.h>
 #include <mach/r7s72100.h>
 #include <asm/mach/arch.h>
 
+#define SCIF_DATA(index, baseaddr, irq)					\
+[index] = {								\
+	.type		= PORT_SCIF,					\
+	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,		\
+	.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,		\
+	.scbrr_algo_id	= SCBRR_ALGO_2,					\
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |	\
+			  SCSCR_REIE,					\
+	.mapbase	= baseaddr,					\
+	.irqs		= { irq + 1, irq + 2, irq + 3, irq },		\
+}
+
+enum { SCIF0, SCIF1, SCIF2, SCIF3, SCIF4, SCIF5, SCIF6, SCIF7 };
+
+static const struct plat_sci_port scif[] __initconst = {
+	SCIF_DATA(SCIF0, 0xe8007000, gic_iid(221)), /* SCIF0 */
+	SCIF_DATA(SCIF1, 0xe8007800, gic_iid(225)), /* SCIF1 */
+	SCIF_DATA(SCIF2, 0xe8008000, gic_iid(229)), /* SCIF2 */
+	SCIF_DATA(SCIF3, 0xe8008800, gic_iid(233)), /* SCIF3 */
+	SCIF_DATA(SCIF4, 0xe8009000, gic_iid(237)), /* SCIF4 */
+	SCIF_DATA(SCIF5, 0xe8009800, gic_iid(241)), /* SCIF5 */
+	SCIF_DATA(SCIF6, 0xe800a000, gic_iid(245)), /* SCIF6 */
+	SCIF_DATA(SCIF7, 0xe800a800, gic_iid(249)), /* SCIF7 */
+};
+
+static inline void r7s72100_register_scif(int idx)
+{
+	platform_device_register_data(&platform_bus, "sh-sci", idx, &scif[idx],
+				      sizeof(struct plat_sci_port));
+}
+
+void __init r7s72100_add_dt_devices(void)
+{
+	r7s72100_register_scif(SCIF0);
+	r7s72100_register_scif(SCIF1);
+	r7s72100_register_scif(SCIF2);
+	r7s72100_register_scif(SCIF3);
+	r7s72100_register_scif(SCIF4);
+	r7s72100_register_scif(SCIF5);
+	r7s72100_register_scif(SCIF6);
+	r7s72100_register_scif(SCIF7);
+}
+
 void __init r7s72100_init_early(void)
 {
 	shmobile_setup_delay(400, 1, 3); /* Cortex-A9 @ 400MHz */
-- 
cgit 


From f564244fb14e0b8b3d8268efbac2e9506644c19f Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Wed, 2 Oct 2013 01:31:40 -0700
Subject: ARM: shmobile: r8a7778: split r8a7778_init_irq_extpin() for DT

r8a7778 INTC needs IRL pin mode settings to determine
behavior of IRQ0 - IRQ3, and r8a7778_init_irq_extpin()
is controlling it via irlm parameter.
But this function registers renesas_intc_irqpin driver
if irlm was set, and this value depends on platform.
This is not good for DT.
This patch splits r8a7778_init_irq_extpin() function
into "mode settings" and "funtion register" parts.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/include/mach/r8a7778.h | 1 +
 arch/arm/mach-shmobile/setup-r8a7778.c        | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/include/mach/r8a7778.h b/arch/arm/mach-shmobile/include/mach/r8a7778.h
index 1d6fe973e8b4..dbe221a484d5 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7778.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7778.h
@@ -41,6 +41,7 @@ extern void r8a7778_init_delay(void);
 extern void r8a7778_init_irq_dt(void);
 extern void r8a7778_clock_init(void);
 extern void r8a7778_init_irq_extpin(int irlm);
+extern void r8a7778_init_irq_extpin_dt(int irlm);
 extern void r8a7778_pinmux_init(void);
 
 extern int r8a7778_usb_phy_power(bool enable);
diff --git a/arch/arm/mach-shmobile/setup-r8a7778.c b/arch/arm/mach-shmobile/setup-r8a7778.c
index fa1b7e44a973..16d49aa8b5db 100644
--- a/arch/arm/mach-shmobile/setup-r8a7778.c
+++ b/arch/arm/mach-shmobile/setup-r8a7778.c
@@ -476,7 +476,7 @@ static struct resource irqpin_resources[] __initdata = {
 	DEFINE_RES_IRQ(gic_iid(0x3e)), /* IRQ3 */
 };
 
-void __init r8a7778_init_irq_extpin(int irlm)
+void __init r8a7778_init_irq_extpin_dt(int irlm)
 {
 	void __iomem *icr0 = ioremap_nocache(0xfe780000, PAGE_SIZE);
 	unsigned long tmp;
@@ -494,7 +494,11 @@ void __init r8a7778_init_irq_extpin(int irlm)
 	tmp |= (1 << 21); /* LVLMODE = 1 */
 	iowrite32(tmp, icr0);
 	iounmap(icr0);
+}
 
+void __init r8a7778_init_irq_extpin(int irlm)
+{
+	r8a7778_init_irq_extpin_dt(irlm);
 	if (irlm)
 		platform_device_register_resndata(
 			&platform_bus, "renesas_intc_irqpin", -1,
-- 
cgit 


From 90e27a05f64b8b4b6021cd996bef957656a8c8ab Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Wed, 2 Oct 2013 01:38:23 -0700
Subject: ARM: shmobile: r8a7779: split r8a7779_init_irq_extpin() for DT

r8a7779 INTC needs IRL pin mode settings to determine
behavior of IRQ0 - IRQ3, and r8a7779_init_irq_extpin()
is controlling it via irlm parameter.
But this function registers renesas_intc_irqpin driver
if irlm was set, and this value depends on platform.
This is not good for DT.
This patch splits r8a7779_init_irq_extpin() function
into "mode settings" and "funtion register" parts

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/include/mach/r8a7779.h | 1 +
 arch/arm/mach-shmobile/setup-r8a7779.c        | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/include/mach/r8a7779.h b/arch/arm/mach-shmobile/include/mach/r8a7779.h
index 31e87b92a9c3..17af34ed89c8 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7779.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7779.h
@@ -33,6 +33,7 @@ static inline struct r8a7779_pm_ch *to_r8a7779_ch(struct generic_pm_domain *d)
 
 extern void r8a7779_init_delay(void);
 extern void r8a7779_init_irq_extpin(int irlm);
+extern void r8a7779_init_irq_extpin_dt(int irlm);
 extern void r8a7779_init_irq_dt(void);
 extern void r8a7779_map_io(void);
 extern void r8a7779_earlytimer_init(void);
diff --git a/arch/arm/mach-shmobile/setup-r8a7779.c b/arch/arm/mach-shmobile/setup-r8a7779.c
index eacb2f783693..13049e9d691c 100644
--- a/arch/arm/mach-shmobile/setup-r8a7779.c
+++ b/arch/arm/mach-shmobile/setup-r8a7779.c
@@ -98,7 +98,7 @@ static struct resource irqpin0_resources[] __initdata = {
 	DEFINE_RES_IRQ(gic_spi(30)), /* IRQ3 */
 };
 
-void __init r8a7779_init_irq_extpin(int irlm)
+void __init r8a7779_init_irq_extpin_dt(int irlm)
 {
 	void __iomem *icr0 = ioremap_nocache(0xfe780000, PAGE_SIZE);
 	u32 tmp;
@@ -116,7 +116,11 @@ void __init r8a7779_init_irq_extpin(int irlm)
 	tmp |= (1 << 21); /* LVLMODE = 1 */
 	iowrite32(tmp, icr0);
 	iounmap(icr0);
+}
 
+void __init r8a7779_init_irq_extpin(int irlm)
+{
+	r8a7779_init_irq_extpin_dt(irlm);
 	if (irlm)
 		platform_device_register_resndata(
 			&platform_bus, "renesas_intc_irqpin", -1,
-- 
cgit 


From 2349199db55bfb99e2ebdce285a7e297ba63a7ef Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 1 Oct 2013 17:13:16 +0900
Subject: ARM: shmobile: r8a7791 SMP support

Tie in the APMU SMP code on r8a7791. When used together
with the secondary CPU device node and smp_ops in the
board specific code then this will allow use of the
two Cortex-A15 cores in the r8a7791 SoC.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/Makefile               |  1 +
 arch/arm/mach-shmobile/include/mach/r8a7791.h |  1 +
 arch/arm/mach-shmobile/setup-r8a7791.c        |  1 +
 arch/arm/mach-shmobile/smp-r8a7791.c          | 62 +++++++++++++++++++++++++++
 4 files changed, 65 insertions(+)
 create mode 100644 arch/arm/mach-shmobile/smp-r8a7791.c

diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 95e48d129ddc..f2d40edadcc9 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -40,6 +40,7 @@ smp-y				:= platsmp.o headsmp.o
 smp-$(CONFIG_ARCH_SH73A0)	+= smp-sh73a0.o headsmp-scu.o platsmp-scu.o
 smp-$(CONFIG_ARCH_R8A7779)	+= smp-r8a7779.o headsmp-scu.o platsmp-scu.o
 smp-$(CONFIG_ARCH_R8A7790)	+= smp-r8a7790.o platsmp-apmu.o
+smp-$(CONFIG_ARCH_R8A7791)	+= smp-r8a7791.o platsmp-apmu.o
 smp-$(CONFIG_ARCH_EMEV2)	+= smp-emev2.o headsmp-scu.o platsmp-scu.o
 
 # IRQ objects
diff --git a/arch/arm/mach-shmobile/include/mach/r8a7791.h b/arch/arm/mach-shmobile/include/mach/r8a7791.h
index 2a86a5394672..051ead3c286e 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7791.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7791.h
@@ -5,5 +5,6 @@ void r8a7791_add_standard_devices(void);
 void r8a7791_add_dt_devices(void);
 void r8a7791_clock_init(void);
 void r8a7791_init_early(void);
+extern struct smp_operations r8a7791_smp_ops;
 
 #endif /* __ASM_R8A7791_H__ */
diff --git a/arch/arm/mach-shmobile/setup-r8a7791.c b/arch/arm/mach-shmobile/setup-r8a7791.c
index cb3859b4cc95..d9393d61ee27 100644
--- a/arch/arm/mach-shmobile/setup-r8a7791.c
+++ b/arch/arm/mach-shmobile/setup-r8a7791.c
@@ -176,6 +176,7 @@ static const char *r8a7791_boards_compat_dt[] __initdata = {
 };
 
 DT_MACHINE_START(R8A7791_DT, "Generic R8A7791 (Flattened Device Tree)")
+	.smp		= smp_ops(r8a7791_smp_ops),
 	.init_early	= r8a7791_init_early,
 	.init_time	= rcar_gen2_timer_init,
 	.dt_compat	= r8a7791_boards_compat_dt,
diff --git a/arch/arm/mach-shmobile/smp-r8a7791.c b/arch/arm/mach-shmobile/smp-r8a7791.c
new file mode 100644
index 000000000000..2df5bd190fe4
--- /dev/null
+++ b/arch/arm/mach-shmobile/smp-r8a7791.c
@@ -0,0 +1,62 @@
+/*
+ * SMP support for r8a7791
+ *
+ * Copyright (C) 2013 Renesas Solutions Corp.
+ * Copyright (C) 2013 Magnus Damm
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/smp.h>
+#include <linux/io.h>
+#include <asm/smp_plat.h>
+#include <mach/common.h>
+#include <mach/r8a7791.h>
+
+#define RST		0xe6160000
+#define CA15BAR		0x0020
+#define CA15RESCNT	0x0040
+#define RAM		0xe6300000
+
+static void __init r8a7791_smp_prepare_cpus(unsigned int max_cpus)
+{
+	void __iomem *p;
+	u32 bar;
+
+	/* let APMU code install data related to shmobile_boot_vector */
+	shmobile_smp_apmu_prepare_cpus(max_cpus);
+
+	/* RAM for jump stub, because BAR requires 256KB aligned address */
+	p = ioremap_nocache(RAM, shmobile_boot_size);
+	memcpy_toio(p, shmobile_boot_vector, shmobile_boot_size);
+	iounmap(p);
+
+	/* setup reset vectors */
+	p = ioremap_nocache(RST, 0x63);
+	bar = (RAM >> 8) & 0xfffffc00;
+	writel_relaxed(bar, p + CA15BAR);
+	writel_relaxed(bar | 0x10, p + CA15BAR);
+
+	/* enable clocks to all CPUs */
+	writel_relaxed((readl_relaxed(p + CA15RESCNT) & ~0x0f) | 0xa5a50000,
+		       p + CA15RESCNT);
+	iounmap(p);
+}
+
+struct smp_operations r8a7791_smp_ops __initdata = {
+	.smp_prepare_cpus	= r8a7791_smp_prepare_cpus,
+	.smp_boot_secondary	= shmobile_smp_apmu_boot_secondary,
+#ifdef CONFIG_HOTPLUG_CPU
+	.cpu_disable		= shmobile_smp_cpu_disable,
+	.cpu_die		= shmobile_smp_apmu_cpu_die,
+	.cpu_kill		= shmobile_smp_apmu_cpu_kill,
+#endif
+};
-- 
cgit 


From 5887d291d792773368f6eaf1759aad109bcd78eb Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Tue, 8 Oct 2013 09:30:33 +0900
Subject: f2fs: avoid unnecessary checkpoints

During the f2fs_put_super procedure, we don't need to conduct checkpoint all
the time, since we don't need to do that if superblock is clean.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/super.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index fde8e6aca9be..539c009d4138 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -372,7 +372,9 @@ static void f2fs_put_super(struct super_block *sb)
 	f2fs_destroy_stats(sbi);
 	stop_gc_thread(sbi);
 
-	write_checkpoint(sbi, true);
+	/* We don't need to do checkpoint when it's clean */
+	if (sbi->s_dirty && get_pages(sbi, F2FS_DIRTY_NODES))
+		write_checkpoint(sbi, true);
 
 	iput(sbi->node_inode);
 	iput(sbi->meta_inode);
-- 
cgit 


From 9f754b4a68e53c71f55aaa9564579ae617a2ff11 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Fri, 2 Aug 2013 16:50:40 +0200
Subject: ARM: shmobile: r8a73a4: add a DMAC platform device and clock for it

Add a DMAC platform device and clock definitions for it on r8a73a4.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a73a4.c        |  4 +-
 arch/arm/mach-shmobile/include/mach/r8a73a4.h |  9 +++
 arch/arm/mach-shmobile/setup-r8a73a4.c        | 91 +++++++++++++++++++++++++++
 3 files changed, 103 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/clock-r8a73a4.c b/arch/arm/mach-shmobile/clock-r8a73a4.c
index 8ea5ef6c79cc..357b9bca7940 100644
--- a/arch/arm/mach-shmobile/clock-r8a73a4.c
+++ b/arch/arm/mach-shmobile/clock-r8a73a4.c
@@ -504,7 +504,7 @@ static struct clk div6_clks[DIV6_NR] = {
 
 /* MSTP */
 enum {
-	MSTP217, MSTP216, MSTP207, MSTP206, MSTP204, MSTP203,
+	MSTP218, MSTP217, MSTP216, MSTP207, MSTP206, MSTP204, MSTP203,
 	MSTP329, MSTP323, MSTP318, MSTP317, MSTP316,
 	MSTP315, MSTP314, MSTP313, MSTP312, MSTP305, MSTP300,
 	MSTP411, MSTP410, MSTP409,
@@ -519,6 +519,7 @@ static struct clk mstp_clks[MSTP_NR] = {
 	[MSTP207] = SH_CLK_MSTP32(&div6_clks[DIV6_MP],	SMSTPCR2, 7, 0), /* SCIFB1 */
 	[MSTP216] = SH_CLK_MSTP32(&div6_clks[DIV6_MP],	SMSTPCR2, 16, 0), /* SCIFB2 */
 	[MSTP217] = SH_CLK_MSTP32(&div6_clks[DIV6_MP],	SMSTPCR2, 17, 0), /* SCIFB3 */
+	[MSTP218] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],	SMSTPCR2, 18, 0), /* DMAC */
 	[MSTP300] = SH_CLK_MSTP32(&div4_clks[DIV4_HP],	SMSTPCR3, 0, 0), /* IIC2 */
 	[MSTP305] = SH_CLK_MSTP32(&div6_clks[DIV6_MMC1],SMSTPCR3, 5, 0), /* MMCIF1 */
 	[MSTP312] = SH_CLK_MSTP32(&div6_clks[DIV6_SDHI2],SMSTPCR3, 12, 0), /* SDHI2 */
@@ -578,6 +579,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("sh-sci.3", &mstp_clks[MSTP207]),
 	CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP216]),
 	CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP217]),
+	CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]),
 	CLKDEV_DEV_ID("rcar_thermal", &mstp_clks[MSTP522]),
 	CLKDEV_DEV_ID("e6520000.i2c", &mstp_clks[MSTP300]),
 	CLKDEV_DEV_ID("sh_mmcif.1", &mstp_clks[MSTP305]),
diff --git a/arch/arm/mach-shmobile/include/mach/r8a73a4.h b/arch/arm/mach-shmobile/include/mach/r8a73a4.h
index 5214338a6a47..ce8bdd1d8a8a 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a73a4.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a73a4.h
@@ -1,6 +1,15 @@
 #ifndef __ASM_R8A73A4_H__
 #define __ASM_R8A73A4_H__
 
+/* DMA slave IDs */
+enum {
+	SHDMA_SLAVE_INVALID,
+	SHDMA_SLAVE_MMCIF0_TX,
+	SHDMA_SLAVE_MMCIF0_RX,
+	SHDMA_SLAVE_MMCIF1_TX,
+	SHDMA_SLAVE_MMCIF1_RX,
+};
+
 void r8a73a4_add_standard_devices(void);
 void r8a73a4_add_dt_devices(void);
 void r8a73a4_clock_init(void);
diff --git a/arch/arm/mach-shmobile/setup-r8a73a4.c b/arch/arm/mach-shmobile/setup-r8a73a4.c
index 53a896275cae..b0f2749071be 100644
--- a/arch/arm/mach-shmobile/setup-r8a73a4.c
+++ b/arch/arm/mach-shmobile/setup-r8a73a4.c
@@ -22,8 +22,10 @@
 #include <linux/of_platform.h>
 #include <linux/platform_data/irq-renesas-irqc.h>
 #include <linux/serial_sci.h>
+#include <linux/sh_dma.h>
 #include <linux/sh_timer.h>
 #include <mach/common.h>
+#include <mach/dma-register.h>
 #include <mach/irqs.h>
 #include <mach/r8a73a4.h>
 #include <asm/mach/arch.h>
@@ -199,12 +201,101 @@ void __init r8a73a4_add_dt_devices(void)
 	r8a7790_register_cmt(10);
 }
 
+/* DMA */
+static const struct sh_dmae_slave_config dma_slaves[] = {
+	{
+		.slave_id	= SHDMA_SLAVE_MMCIF0_TX,
+		.addr		= 0xee200034,
+		.chcr		= CHCR_TX(XMIT_SZ_32BIT),
+		.mid_rid	= 0xd1,
+	}, {
+		.slave_id	= SHDMA_SLAVE_MMCIF0_RX,
+		.addr		= 0xee200034,
+		.chcr		= CHCR_RX(XMIT_SZ_32BIT),
+		.mid_rid	= 0xd2,
+	}, {
+		.slave_id	= SHDMA_SLAVE_MMCIF1_TX,
+		.addr		= 0xee220034,
+		.chcr		= CHCR_TX(XMIT_SZ_32BIT),
+		.mid_rid	= 0xe1,
+	}, {
+		.slave_id	= SHDMA_SLAVE_MMCIF1_RX,
+		.addr		= 0xee220034,
+		.chcr		= CHCR_RX(XMIT_SZ_32BIT),
+		.mid_rid	= 0xe2,
+	},
+};
+
+#define DMAE_CHANNEL(a, b)				\
+	{						\
+		.offset         = (a) - 0x20,		\
+		.dmars          = (a) - 0x20 + 0x40,	\
+		.chclr_bit	= (b),			\
+		.chclr_offset	= 0x80 - 0x20,		\
+	}
+
+static const struct sh_dmae_channel dma_channels[] = {
+	DMAE_CHANNEL(0x8000, 0),
+	DMAE_CHANNEL(0x8080, 1),
+	DMAE_CHANNEL(0x8100, 2),
+	DMAE_CHANNEL(0x8180, 3),
+	DMAE_CHANNEL(0x8200, 4),
+	DMAE_CHANNEL(0x8280, 5),
+	DMAE_CHANNEL(0x8300, 6),
+	DMAE_CHANNEL(0x8380, 7),
+	DMAE_CHANNEL(0x8400, 8),
+	DMAE_CHANNEL(0x8480, 9),
+	DMAE_CHANNEL(0x8500, 10),
+	DMAE_CHANNEL(0x8580, 11),
+	DMAE_CHANNEL(0x8600, 12),
+	DMAE_CHANNEL(0x8680, 13),
+	DMAE_CHANNEL(0x8700, 14),
+	DMAE_CHANNEL(0x8780, 15),
+	DMAE_CHANNEL(0x8800, 16),
+	DMAE_CHANNEL(0x8880, 17),
+	DMAE_CHANNEL(0x8900, 18),
+	DMAE_CHANNEL(0x8980, 19),
+};
+
+static const struct sh_dmae_pdata dma_pdata = {
+	.slave		= dma_slaves,
+	.slave_num	= ARRAY_SIZE(dma_slaves),
+	.channel	= dma_channels,
+	.channel_num	= ARRAY_SIZE(dma_channels),
+	.ts_low_shift	= TS_LOW_SHIFT,
+	.ts_low_mask	= TS_LOW_BIT << TS_LOW_SHIFT,
+	.ts_high_shift	= TS_HI_SHIFT,
+	.ts_high_mask	= TS_HI_BIT << TS_HI_SHIFT,
+	.ts_shift	= dma_ts_shift,
+	.ts_shift_num	= ARRAY_SIZE(dma_ts_shift),
+	.dmaor_init     = DMAOR_DME,
+	.chclr_present	= 1,
+	.chclr_bitwise	= 1,
+};
+
+static struct resource dma_resources[] = {
+	DEFINE_RES_MEM(0xe6700020, 0x89e0),
+	DEFINE_RES_IRQ_NAMED(gic_spi(220), "error_irq"),
+	{
+		/* IRQ for channels 0-19 */
+		.start  = gic_spi(200),
+		.end    = gic_spi(219),
+		.flags  = IORESOURCE_IRQ,
+	},
+};
+
+#define r8a73a4_register_dmac()							\
+	platform_device_register_resndata(&platform_bus, "sh-dma-engine", 0,	\
+				dma_resources, ARRAY_SIZE(dma_resources),	\
+				&dma_pdata, sizeof(dma_pdata))
+
 void __init r8a73a4_add_standard_devices(void)
 {
 	r8a73a4_add_dt_devices();
 	r8a73a4_register_irqc(0);
 	r8a73a4_register_irqc(1);
 	r8a73a4_register_thermal();
+	r8a73a4_register_dmac();
 }
 
 void __init r8a73a4_init_early(void)
-- 
cgit 


From 338c4991ed350abd7c5b3cb807fe022cb712a8ba Mon Sep 17 00:00:00 2001
From: Max Filippov <max.filippov@cogentembedded.com>
Date: Sun, 25 Aug 2013 01:35:13 +0400
Subject: ARM: shmobile: r8a7778: add HPB-DMAC support

Add HPB-DMAC platform device on R8A7778 SoC along with its slave and channel
configurations (only for SDHI0 so far).

Signed-off-by: Max Filippov <max.filippov@cogentembedded.com>
[Sergei: moved *enum* declaring HPB-DMAC slave IDs from now removed <mach/dma.h>
to <mach/r8a7778.h>, removed #include <mach/dma.h> from setup-r8a7778.c, removed
SSI-related *enum* values and SSI-related data from hpb_dmae_slaves[] and
hpb_dmae_channels[], moved the comments after the element initializers of
hpb_dmae_channels[].]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/include/mach/r8a7778.h |  8 +++
 arch/arm/mach-shmobile/setup-r8a7778.c        | 85 +++++++++++++++++++++++++++
 2 files changed, 93 insertions(+)

diff --git a/arch/arm/mach-shmobile/include/mach/r8a7778.h b/arch/arm/mach-shmobile/include/mach/r8a7778.h
index ea1dca6880f4..1d6fe973e8b4 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7778.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7778.h
@@ -1,6 +1,7 @@
 /*
  * Copyright (C) 2013  Renesas Solutions Corp.
  * Copyright (C) 2013  Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ * Copyright (C) 2013  Cogent Embedded, Inc.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -21,6 +22,13 @@
 #include <linux/sh_eth.h>
 #include <linux/platform_data/camera-rcar.h>
 
+/* HPB-DMA slave IDs */
+enum {
+	HPBDMA_SLAVE_DUMMY,
+	HPBDMA_SLAVE_SDHI0_TX,
+	HPBDMA_SLAVE_SDHI0_RX,
+};
+
 extern void r8a7778_add_standard_devices(void);
 extern void r8a7778_add_standard_devices_dt(void);
 extern void r8a7778_add_ether_device(struct sh_eth_plat_data *pdata);
diff --git a/arch/arm/mach-shmobile/setup-r8a7778.c b/arch/arm/mach-shmobile/setup-r8a7778.c
index e484d1420a01..fa1b7e44a973 100644
--- a/arch/arm/mach-shmobile/setup-r8a7778.c
+++ b/arch/arm/mach-shmobile/setup-r8a7778.c
@@ -24,6 +24,7 @@
 #include <linux/irqchip/arm-gic.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
+#include <linux/platform_data/dma-rcar-hpbdma.h>
 #include <linux/platform_data/gpio-rcar.h>
 #include <linux/platform_data/irq-renesas-intc-irqpin.h>
 #include <linux/platform_device.h>
@@ -356,6 +357,88 @@ void __init r8a7778_add_dt_devices(void)
 	r8a7778_register_tmu(1);
 }
 
+/* HPB-DMA */
+
+/* Asynchronous mode register (ASYNCMDR) bits */
+#define HPB_DMAE_ASYNCMDR_ASMD22_MASK	BIT(2)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD22_SINGLE	BIT(2)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD22_MULTI	0	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD21_MASK	BIT(1)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD21_SINGLE	BIT(1)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD21_MULTI	0	/* SDHI0 */
+
+static const struct hpb_dmae_slave_config hpb_dmae_slaves[] = {
+	{
+		.id	= HPBDMA_SLAVE_SDHI0_TX,
+		.addr	= 0xffe4c000 + 0x30,
+		.dcr	= HPB_DMAE_DCR_SPDS_16BIT |
+			  HPB_DMAE_DCR_DMDL |
+			  HPB_DMAE_DCR_DPDS_16BIT,
+		.rstr	= HPB_DMAE_ASYNCRSTR_ASRST21 |
+			  HPB_DMAE_ASYNCRSTR_ASRST22 |
+			  HPB_DMAE_ASYNCRSTR_ASRST23,
+		.mdr	= HPB_DMAE_ASYNCMDR_ASMD21_MULTI,
+		.mdm	= HPB_DMAE_ASYNCMDR_ASMD21_MASK,
+		.port	= 0x0D0C,
+		.flags	= HPB_DMAE_SET_ASYNC_RESET | HPB_DMAE_SET_ASYNC_MODE,
+		.dma_ch	= 21,
+	}, {
+		.id	= HPBDMA_SLAVE_SDHI0_RX,
+		.addr	= 0xffe4c000 + 0x30,
+		.dcr	= HPB_DMAE_DCR_SMDL |
+			  HPB_DMAE_DCR_SPDS_16BIT |
+			  HPB_DMAE_DCR_DPDS_16BIT,
+		.rstr	= HPB_DMAE_ASYNCRSTR_ASRST21 |
+			  HPB_DMAE_ASYNCRSTR_ASRST22 |
+			  HPB_DMAE_ASYNCRSTR_ASRST23,
+		.mdr	= HPB_DMAE_ASYNCMDR_ASMD22_MULTI,
+		.mdm	= HPB_DMAE_ASYNCMDR_ASMD22_MASK,
+		.port	= 0x0D0C,
+		.flags	= HPB_DMAE_SET_ASYNC_RESET | HPB_DMAE_SET_ASYNC_MODE,
+		.dma_ch	= 22,
+	},
+};
+
+static const struct hpb_dmae_channel hpb_dmae_channels[] = {
+	HPB_DMAE_CHANNEL(0x7e, HPBDMA_SLAVE_SDHI0_TX), /* ch. 21 */
+	HPB_DMAE_CHANNEL(0x7e, HPBDMA_SLAVE_SDHI0_RX), /* ch. 22 */
+};
+
+static struct hpb_dmae_pdata dma_platform_data __initdata = {
+	.slaves			= hpb_dmae_slaves,
+	.num_slaves		= ARRAY_SIZE(hpb_dmae_slaves),
+	.channels		= hpb_dmae_channels,
+	.num_channels		= ARRAY_SIZE(hpb_dmae_channels),
+	.ts_shift		= {
+		[XMIT_SZ_8BIT]	= 0,
+		[XMIT_SZ_16BIT]	= 1,
+		[XMIT_SZ_32BIT]	= 2,
+	},
+	.num_hw_channels	= 39,
+};
+
+static struct resource hpb_dmae_resources[] __initdata = {
+	/* Channel registers */
+	DEFINE_RES_MEM(0xffc08000, 0x1000),
+	/* Common registers */
+	DEFINE_RES_MEM(0xffc09000, 0x170),
+	/* Asynchronous reset registers */
+	DEFINE_RES_MEM(0xffc00300, 4),
+	/* Asynchronous mode registers */
+	DEFINE_RES_MEM(0xffc00400, 4),
+	/* IRQ for DMA channels */
+	DEFINE_RES_NAMED(gic_iid(0x7b), 5, NULL, IORESOURCE_IRQ),
+};
+
+static void __init r8a7778_register_hpb_dmae(void)
+{
+	platform_device_register_resndata(&platform_bus, "hpb-dma-engine", -1,
+					  hpb_dmae_resources,
+					  ARRAY_SIZE(hpb_dmae_resources),
+					  &dma_platform_data,
+					  sizeof(dma_platform_data));
+}
+
 void __init r8a7778_add_standard_devices(void)
 {
 	r8a7778_add_dt_devices();
@@ -366,6 +449,8 @@ void __init r8a7778_add_standard_devices(void)
 	r8a7778_register_hspi(0);
 	r8a7778_register_hspi(1);
 	r8a7778_register_hspi(2);
+
+	r8a7778_register_hpb_dmae();
 }
 
 void __init r8a7778_init_late(void)
-- 
cgit 


From 441f750236f3d3d435a1e89ad885ec896832b9c6 Mon Sep 17 00:00:00 2001
From: Max Filippov <max.filippov@cogentembedded.com>
Date: Sun, 25 Aug 2013 21:46:23 +0400
Subject: ARM: shmobile: r8a7779: add HPB-DMAC support

Add HPB-DMAC platform device on R8A7779 SoC along with its slave and channel
configurations (only for SDHI0 so far).

Signed-off-by: Max Filippov <max.filippov@cogentembedded.com>
[Sergei: moved *enum* declaring HPB-DMAC slave IDs from now removed <mach/dma.h>
to <mach/r8a7779.h>, removed #include <mach/dma.h> from setup-r8a7779.c, removed
SSI-related *enum* values and SSI-related data from hpb_dmae_slaves[] and
hpb_dmae_channels[], added ASYNCMDR.ASBTMD{20|24|43} and ASYNCMDR.ASMD{20|24|43}
fields/values, fixed comments to ASYNCMDR.ASBTMD2[123] and ASYNCMDR.ASMD2[123]
fields/values, renamed all the bit/field/value #define's to include 'HBP_DMAE_'
prefix to match the driver, moved comments after the element initializers of
hpb_dmae_channels[].]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/include/mach/r8a7779.h |   7 ++
 arch/arm/mach-shmobile/setup-r8a7779.c        | 154 ++++++++++++++++++++++++++
 2 files changed, 161 insertions(+)

diff --git a/arch/arm/mach-shmobile/include/mach/r8a7779.h b/arch/arm/mach-shmobile/include/mach/r8a7779.h
index 11c740047e14..31e87b92a9c3 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7779.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7779.h
@@ -6,6 +6,13 @@
 #include <linux/sh_eth.h>
 #include <linux/platform_data/camera-rcar.h>
 
+/* HPB-DMA slave IDs */
+enum {
+	HPBDMA_SLAVE_DUMMY,
+	HPBDMA_SLAVE_SDHI0_TX,
+	HPBDMA_SLAVE_SDHI0_RX,
+};
+
 struct platform_device;
 
 struct r8a7779_pm_ch {
diff --git a/arch/arm/mach-shmobile/setup-r8a7779.c b/arch/arm/mach-shmobile/setup-r8a7779.c
index ecd0148ee1e1..eacb2f783693 100644
--- a/arch/arm/mach-shmobile/setup-r8a7779.c
+++ b/arch/arm/mach-shmobile/setup-r8a7779.c
@@ -25,6 +25,7 @@
 #include <linux/irqchip.h>
 #include <linux/irqchip/arm-gic.h>
 #include <linux/of_platform.h>
+#include <linux/platform_data/dma-rcar-hpbdma.h>
 #include <linux/platform_data/gpio-rcar.h>
 #include <linux/platform_data/irq-renesas-intc-irqpin.h>
 #include <linux/platform_device.h>
@@ -632,6 +633,158 @@ static struct platform_device_info *vin_info_table[] __initdata = {
 	&vin3_info,
 };
 
+/* HPB-DMA */
+
+/* Asynchronous mode register bits */
+#define HPB_DMAE_ASYNCMDR_ASMD43_MASK		BIT(23)	/* MMC1 */
+#define HPB_DMAE_ASYNCMDR_ASMD43_SINGLE		BIT(23)	/* MMC1 */
+#define HPB_DMAE_ASYNCMDR_ASMD43_MULTI		0	/* MMC1 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD43_MASK		BIT(22)	/* MMC1 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD43_BURST	BIT(22)	/* MMC1 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD43_NBURST	0	/* MMC1 */
+#define HPB_DMAE_ASYNCMDR_ASMD24_MASK		BIT(21)	/* MMC0 */
+#define HPB_DMAE_ASYNCMDR_ASMD24_SINGLE		BIT(21)	/* MMC0 */
+#define HPB_DMAE_ASYNCMDR_ASMD24_MULTI		0	/* MMC0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD24_MASK		BIT(20)	/* MMC0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD24_BURST	BIT(20)	/* MMC0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD24_NBURST	0	/* MMC0 */
+#define HPB_DMAE_ASYNCMDR_ASMD41_MASK		BIT(19)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASMD41_SINGLE		BIT(19)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASMD41_MULTI		0	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD41_MASK		BIT(18)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD41_BURST	BIT(18)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD41_NBURST	0	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASMD40_MASK		BIT(17)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASMD40_SINGLE		BIT(17)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASMD40_MULTI		0	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD40_MASK		BIT(16)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD40_BURST	BIT(16)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD40_NBURST	0	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASMD39_MASK		BIT(15)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASMD39_SINGLE		BIT(15)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASMD39_MULTI		0	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD39_MASK		BIT(14)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD39_BURST	BIT(14)	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD39_NBURST	0	/* SDHI3 */
+#define HPB_DMAE_ASYNCMDR_ASMD27_MASK		BIT(13)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASMD27_SINGLE		BIT(13)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASMD27_MULTI		0	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD27_MASK		BIT(12)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD27_BURST	BIT(12)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD27_NBURST	0	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASMD26_MASK		BIT(11)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASMD26_SINGLE		BIT(11)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASMD26_MULTI		0	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD26_MASK		BIT(10)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD26_BURST	BIT(10)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD26_NBURST	0	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASMD25_MASK		BIT(9)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASMD25_SINGLE		BIT(9)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASMD25_MULTI		0	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD25_MASK		BIT(8)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD25_BURST	BIT(8)	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD25_NBURST	0	/* SDHI2 */
+#define HPB_DMAE_ASYNCMDR_ASMD23_MASK		BIT(7)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD23_SINGLE		BIT(7)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD23_MULTI		0	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD23_MASK		BIT(6)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD23_BURST	BIT(6)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD23_NBURST	0	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD22_MASK		BIT(5)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD22_SINGLE		BIT(5)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD22_MULTI		0	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD22_MASK		BIT(4)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD22_BURST	BIT(4)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD22_NBURST	0	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD21_MASK		BIT(3)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD21_SINGLE		BIT(3)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD21_MULTI		0	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD21_MASK		BIT(2)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD21_BURST	BIT(2)	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD21_NBURST	0	/* SDHI0 */
+#define HPB_DMAE_ASYNCMDR_ASMD20_MASK		BIT(1)	/* SDHI1 */
+#define HPB_DMAE_ASYNCMDR_ASMD20_SINGLE		BIT(1)	/* SDHI1 */
+#define HPB_DMAE_ASYNCMDR_ASMD20_MULTI		0	/* SDHI1 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD20_MASK		BIT(0)	/* SDHI1 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD20_BURST	BIT(0)	/* SDHI1 */
+#define HPB_DMAE_ASYNCMDR_ASBTMD20_NBURST	0	/* SDHI1 */
+
+static const struct hpb_dmae_slave_config hpb_dmae_slaves[] = {
+	{
+		.id	= HPBDMA_SLAVE_SDHI0_TX,
+		.addr	= 0xffe4c000 + 0x30,
+		.dcr	= HPB_DMAE_DCR_SPDS_16BIT |
+			  HPB_DMAE_DCR_DMDL |
+			  HPB_DMAE_DCR_DPDS_16BIT,
+		.rstr	= HPB_DMAE_ASYNCRSTR_ASRST21 |
+			  HPB_DMAE_ASYNCRSTR_ASRST22 |
+			  HPB_DMAE_ASYNCRSTR_ASRST23,
+		.mdr	= HPB_DMAE_ASYNCMDR_ASMD21_SINGLE |
+			  HPB_DMAE_ASYNCMDR_ASBTMD21_NBURST,
+		.mdm	= HPB_DMAE_ASYNCMDR_ASMD21_MASK |
+			  HPB_DMAE_ASYNCMDR_ASBTMD21_MASK,
+		.port	= 0x0D0C,
+		.flags	= HPB_DMAE_SET_ASYNC_RESET | HPB_DMAE_SET_ASYNC_MODE,
+		.dma_ch	= 21,
+	}, {
+		.id	= HPBDMA_SLAVE_SDHI0_RX,
+		.addr	= 0xffe4c000 + 0x30,
+		.dcr	= HPB_DMAE_DCR_SMDL |
+			  HPB_DMAE_DCR_SPDS_16BIT |
+			  HPB_DMAE_DCR_DPDS_16BIT,
+		.rstr	= HPB_DMAE_ASYNCRSTR_ASRST21 |
+			  HPB_DMAE_ASYNCRSTR_ASRST22 |
+			  HPB_DMAE_ASYNCRSTR_ASRST23,
+		.mdr	= HPB_DMAE_ASYNCMDR_ASMD22_SINGLE |
+			  HPB_DMAE_ASYNCMDR_ASBTMD22_NBURST,
+		.mdm	= HPB_DMAE_ASYNCMDR_ASMD22_MASK |
+			  HPB_DMAE_ASYNCMDR_ASBTMD22_MASK,
+		.port	= 0x0D0C,
+		.flags	= HPB_DMAE_SET_ASYNC_RESET | HPB_DMAE_SET_ASYNC_MODE,
+		.dma_ch	= 22,
+	},
+};
+
+static const struct hpb_dmae_channel hpb_dmae_channels[] = {
+	HPB_DMAE_CHANNEL(0x93, HPBDMA_SLAVE_SDHI0_TX), /* ch. 21 */
+	HPB_DMAE_CHANNEL(0x93, HPBDMA_SLAVE_SDHI0_RX), /* ch. 22 */
+};
+
+static struct hpb_dmae_pdata dma_platform_data __initdata = {
+	.slaves			= hpb_dmae_slaves,
+	.num_slaves		= ARRAY_SIZE(hpb_dmae_slaves),
+	.channels		= hpb_dmae_channels,
+	.num_channels		= ARRAY_SIZE(hpb_dmae_channels),
+	.ts_shift		= {
+		[XMIT_SZ_8BIT]	= 0,
+		[XMIT_SZ_16BIT]	= 1,
+		[XMIT_SZ_32BIT]	= 2,
+	},
+	.num_hw_channels	= 44,
+};
+
+static struct resource hpb_dmae_resources[] __initdata = {
+	/* Channel registers */
+	DEFINE_RES_MEM(0xffc08000, 0x1000),
+	/* Common registers */
+	DEFINE_RES_MEM(0xffc09000, 0x170),
+	/* Asynchronous reset registers */
+	DEFINE_RES_MEM(0xffc00300, 4),
+	/* Asynchronous mode registers */
+	DEFINE_RES_MEM(0xffc00400, 4),
+	/* IRQ for DMA channels */
+	DEFINE_RES_NAMED(gic_iid(0x8e), 12, NULL, IORESOURCE_IRQ),
+};
+
+static void __init r8a7779_register_hpb_dmae(void)
+{
+	platform_device_register_resndata(&platform_bus, "hpb-dma-engine", -1,
+					  hpb_dmae_resources,
+					  ARRAY_SIZE(hpb_dmae_resources),
+					  &dma_platform_data,
+					  sizeof(dma_platform_data));
+}
+
 static struct platform_device *r8a7779_devices_dt[] __initdata = {
 	&scif0_device,
 	&scif1_device,
@@ -665,6 +818,7 @@ void __init r8a7779_add_standard_devices(void)
 			    ARRAY_SIZE(r8a7779_devices_dt));
 	platform_add_devices(r8a7779_standard_devices,
 			    ARRAY_SIZE(r8a7779_standard_devices));
+	r8a7779_register_hpb_dmae();
 }
 
 void __init r8a7779_add_ether_device(struct sh_eth_plat_data *pdata)
-- 
cgit 


From 911a644cfa03d834220621f22bb4a4d41dfe27d4 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 26 Sep 2013 19:20:57 +0200
Subject: ARM: shmobile: r8a7790: add I2C clocks and aliases for the DT mode

This patch adds clock definitions for the 4 I2C interfaces on r8a7790 and
clock aliases, suitable for the DT mode.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a7790.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/mach-shmobile/clock-r8a7790.c b/arch/arm/mach-shmobile/clock-r8a7790.c
index d99b87bc76ea..7661e898f376 100644
--- a/arch/arm/mach-shmobile/clock-r8a7790.c
+++ b/arch/arm/mach-shmobile/clock-r8a7790.c
@@ -52,6 +52,7 @@
 #define SMSTPCR5 0xe6150144
 #define SMSTPCR7 0xe615014c
 #define SMSTPCR8 0xe6150990
+#define SMSTPCR9 0xe6150994
 
 #define SDCKCR		0xE6150074
 #define SD2CKCR		0xE6150078
@@ -181,6 +182,7 @@ static struct clk div6_clks[DIV6_NR] = {
 
 /* MSTP */
 enum {
+	MSTP931, MSTP930, MSTP929, MSTP928,
 	MSTP813,
 	MSTP726, MSTP725, MSTP724, MSTP723, MSTP722, MSTP721, MSTP720,
 	MSTP717, MSTP716,
@@ -192,6 +194,10 @@ enum {
 };
 
 static struct clk mstp_clks[MSTP_NR] = {
+	[MSTP931] = SH_CLK_MSTP32(&hp_clk, SMSTPCR9, 31, 0), /* I2C0 */
+	[MSTP930] = SH_CLK_MSTP32(&hp_clk, SMSTPCR9, 30, 0), /* I2C1 */
+	[MSTP929] = SH_CLK_MSTP32(&hp_clk, SMSTPCR9, 29, 0), /* I2C2 */
+	[MSTP928] = SH_CLK_MSTP32(&hp_clk, SMSTPCR9, 28, 0), /* I2C3 */
 	[MSTP813] = SH_CLK_MSTP32(&p_clk, SMSTPCR8, 13, 0), /* Ether */
 	[MSTP726] = SH_CLK_MSTP32(&zx_clk, SMSTPCR7, 26, 0), /* LVDS0 */
 	[MSTP725] = SH_CLK_MSTP32(&zx_clk, SMSTPCR7, 25, 0), /* LVDS1 */
@@ -271,6 +277,10 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("sh-sci.7", &mstp_clks[MSTP720]),
 	CLKDEV_DEV_ID("sh-sci.8", &mstp_clks[MSTP717]),
 	CLKDEV_DEV_ID("sh-sci.9", &mstp_clks[MSTP716]),
+	CLKDEV_DEV_ID("e6508000.i2c", &mstp_clks[MSTP931]),
+	CLKDEV_DEV_ID("e6518000.i2c", &mstp_clks[MSTP930]),
+	CLKDEV_DEV_ID("e6530000.i2c", &mstp_clks[MSTP929]),
+	CLKDEV_DEV_ID("e6540000.i2c", &mstp_clks[MSTP928]),
 	CLKDEV_DEV_ID("r8a7790-ether", &mstp_clks[MSTP813]),
 	CLKDEV_DEV_ID("rcar_thermal", &mstp_clks[MSTP522]),
 	CLKDEV_DEV_ID("ee200000.mmcif", &mstp_clks[MSTP315]),
-- 
cgit 


From b9b28f5254d792d7ebe35f5314fe11a36174270d Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 26 Sep 2013 19:30:02 +0200
Subject: ARM: shmobile: r8a73a4: add a clock alias for the DMAC in DT mode

Devices, initialised from the Device Tree and from platform code usually
have different names. This patch adds a clock alias for DMAC on r8a73a4
in DT mode.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r8a73a4.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-shmobile/clock-r8a73a4.c b/arch/arm/mach-shmobile/clock-r8a73a4.c
index 357b9bca7940..74841edf04eb 100644
--- a/arch/arm/mach-shmobile/clock-r8a73a4.c
+++ b/arch/arm/mach-shmobile/clock-r8a73a4.c
@@ -580,6 +580,7 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_DEV_ID("sh-sci.4", &mstp_clks[MSTP216]),
 	CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP217]),
 	CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]),
+	CLKDEV_DEV_ID("e6700020.dma-controller", &mstp_clks[MSTP218]),
 	CLKDEV_DEV_ID("rcar_thermal", &mstp_clks[MSTP522]),
 	CLKDEV_DEV_ID("e6520000.i2c", &mstp_clks[MSTP300]),
 	CLKDEV_DEV_ID("sh_mmcif.1", &mstp_clks[MSTP305]),
-- 
cgit 


From 50c517d92eac08b352ccf4b25c93a53947bb855e Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Thu, 12 Sep 2013 09:32:49 +0900
Subject: ARM: shmobile: Break out R-Car Gen2 setup code

Move arch timer workaround code and boot mode pin
handling from setup-r8a7790.c to setup-rcar-gen2.c.

With this in place the same code can be used on
other R-Car Generation 2 devices such as r8a7791.

Signed-off-by: Magnus Damm <damm@opensource.se>
[horms+renesas@verge.net.au trivial rebase of board-lager.c
 for introduction of lager_add_standard_devices()]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/Makefile                 |  1 +
 arch/arm/mach-shmobile/board-lager-reference.c  |  2 +-
 arch/arm/mach-shmobile/board-lager.c            |  2 +-
 arch/arm/mach-shmobile/clock-r8a7790.c          |  2 +-
 arch/arm/mach-shmobile/include/mach/r8a7790.h   |  6 +-
 arch/arm/mach-shmobile/include/mach/rcar-gen2.h |  8 +++
 arch/arm/mach-shmobile/setup-r8a7790.c          | 68 +-----------------
 arch/arm/mach-shmobile/setup-rcar-gen2.c        | 91 +++++++++++++++++++++++++
 8 files changed, 106 insertions(+), 74 deletions(-)
 create mode 100644 arch/arm/mach-shmobile/include/mach/rcar-gen2.h
 create mode 100644 arch/arm/mach-shmobile/setup-rcar-gen2.c

diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index d30ec1a427ec..6b7a02ee8b93 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_ARCH_R8A7740)	+= setup-r8a7740.o
 obj-$(CONFIG_ARCH_R8A7778)	+= setup-r8a7778.o
 obj-$(CONFIG_ARCH_R8A7779)	+= setup-r8a7779.o
 obj-$(CONFIG_ARCH_R8A7790)	+= setup-r8a7790.o
+obj-$(CONFIG_ARCH_R8A7790)	+= setup-r8a7790.o setup-rcar-gen2.o
 obj-$(CONFIG_ARCH_R8A7791)	+= setup-r8a7791.o
 obj-$(CONFIG_ARCH_EMEV2)	+= setup-emev2.o
 
diff --git a/arch/arm/mach-shmobile/board-lager-reference.c b/arch/arm/mach-shmobile/board-lager-reference.c
index d39a91b3ba48..1a1a4a888632 100644
--- a/arch/arm/mach-shmobile/board-lager-reference.c
+++ b/arch/arm/mach-shmobile/board-lager-reference.c
@@ -40,7 +40,7 @@ static const char *lager_boards_compat_dt[] __initdata = {
 DT_MACHINE_START(LAGER_DT, "lager")
 	.smp		= smp_ops(r8a7790_smp_ops),
 	.init_early	= r8a7790_init_early,
+	.init_time	= rcar_gen2_timer_init,
 	.init_machine	= lager_add_standard_devices,
-	.init_time	= r8a7790_timer_init,
 	.dt_compat	= lager_boards_compat_dt,
 MACHINE_END
diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index 6d1026e99e13..4e040e4d1102 100644
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -188,7 +188,7 @@ static const char *lager_boards_compat_dt[] __initdata = {
 DT_MACHINE_START(LAGER_DT, "lager")
 	.smp		= smp_ops(r8a7790_smp_ops),
 	.init_early	= r8a7790_init_early,
-	.init_time	= r8a7790_timer_init,
+	.init_time	= rcar_gen2_timer_init,
 	.init_machine	= lager_init,
 	.dt_compat	= lager_boards_compat_dt,
 MACHINE_END
diff --git a/arch/arm/mach-shmobile/clock-r8a7790.c b/arch/arm/mach-shmobile/clock-r8a7790.c
index 7661e898f376..a64f965c7da1 100644
--- a/arch/arm/mach-shmobile/clock-r8a7790.c
+++ b/arch/arm/mach-shmobile/clock-r8a7790.c
@@ -310,7 +310,7 @@ static struct clk_lookup lookups[] = {
 
 void __init r8a7790_clock_init(void)
 {
-	u32 mode = r8a7790_read_mode_pins();
+	u32 mode = rcar_gen2_read_mode_pins();
 	int k, ret = 0;
 
 	switch (mode & (MD(14) | MD(13))) {
diff --git a/arch/arm/mach-shmobile/include/mach/r8a7790.h b/arch/arm/mach-shmobile/include/mach/r8a7790.h
index 79e731c83e50..5fbfa28b40b6 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7790.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7790.h
@@ -1,15 +1,13 @@
 #ifndef __ASM_R8A7790_H__
 #define __ASM_R8A7790_H__
 
+#include <mach/rcar-gen2.h>
+
 void r8a7790_add_standard_devices(void);
 void r8a7790_add_dt_devices(void);
 void r8a7790_clock_init(void);
 void r8a7790_pinmux_init(void);
 void r8a7790_init_early(void);
-void r8a7790_timer_init(void);
 extern struct smp_operations r8a7790_smp_ops;
 
-#define MD(nr) BIT(nr)
-u32 r8a7790_read_mode_pins(void);
-
 #endif /* __ASM_R8A7790_H__ */
diff --git a/arch/arm/mach-shmobile/include/mach/rcar-gen2.h b/arch/arm/mach-shmobile/include/mach/rcar-gen2.h
new file mode 100644
index 000000000000..43f606eb2d82
--- /dev/null
+++ b/arch/arm/mach-shmobile/include/mach/rcar-gen2.h
@@ -0,0 +1,8 @@
+#ifndef __ASM_RCAR_GEN2_H__
+#define __ASM_RCAR_GEN2_H__
+
+void rcar_gen2_timer_init(void);
+#define MD(nr) BIT(nr)
+u32 rcar_gen2_read_mode_pins(void);
+
+#endif /* __ASM_RCAR_GEN2_H__ */
diff --git a/arch/arm/mach-shmobile/setup-r8a7790.c b/arch/arm/mach-shmobile/setup-r8a7790.c
index c7e24eff9ba2..c47bcebbcb00 100644
--- a/arch/arm/mach-shmobile/setup-r8a7790.c
+++ b/arch/arm/mach-shmobile/setup-r8a7790.c
@@ -18,7 +18,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
-#include <linux/clocksource.h>
 #include <linux/irq.h>
 #include <linux/kernel.h>
 #include <linux/of_platform.h>
@@ -203,71 +202,6 @@ void __init r8a7790_add_standard_devices(void)
 	r8a7790_register_thermal();
 }
 
-#define MODEMR 0xe6160060
-
-u32 __init r8a7790_read_mode_pins(void)
-{
-	void __iomem *modemr = ioremap_nocache(MODEMR, 4);
-	u32 mode;
-
-	BUG_ON(!modemr);
-	mode = ioread32(modemr);
-	iounmap(modemr);
-
-	return mode;
-}
-
-#define CNTCR 0
-#define CNTFID0 0x20
-
-void __init r8a7790_timer_init(void)
-{
-#ifdef CONFIG_ARM_ARCH_TIMER
-	u32 mode = r8a7790_read_mode_pins();
-	void __iomem *base;
-	int extal_mhz = 0;
-	u32 freq;
-
-	/* At Linux boot time the r8a7790 arch timer comes up
-	 * with the counter disabled. Moreover, it may also report
-	 * a potentially incorrect fixed 13 MHz frequency. To be
-	 * correct these registers need to be updated to use the
-	 * frequency EXTAL / 2 which can be determined by the MD pins.
-	 */
-
-	switch (mode & (MD(14) | MD(13))) {
-	case 0:
-		extal_mhz = 15;
-		break;
-	case MD(13):
-		extal_mhz = 20;
-		break;
-	case MD(14):
-		extal_mhz = 26;
-		break;
-	case MD(13) | MD(14):
-		extal_mhz = 30;
-		break;
-	}
-
-	/* The arch timer frequency equals EXTAL / 2 */
-	freq = extal_mhz * (1000000 / 2);
-
-	/* Remap "armgcnt address map" space */
-	base = ioremap(0xe6080000, PAGE_SIZE);
-
-	/* Update registers with correct frequency */
-	iowrite32(freq, base + CNTFID0);
-	asm volatile("mcr p15, 0, %0, c14, c0, 0" : : "r" (freq));
-
-	/* make sure arch timer is started by setting bit 0 of CNTCR */
-	iowrite32(1, base + CNTCR);
-	iounmap(base);
-#endif /* CONFIG_ARM_ARCH_TIMER */
-
-	clocksource_of_init();
-}
-
 void __init r8a7790_init_early(void)
 {
 #ifndef CONFIG_ARM_ARCH_TIMER
@@ -285,7 +219,7 @@ static const char * const r8a7790_boards_compat_dt[] __initconst = {
 DT_MACHINE_START(R8A7790_DT, "Generic R8A7790 (Flattened Device Tree)")
 	.smp		= smp_ops(r8a7790_smp_ops),
 	.init_early	= r8a7790_init_early,
-	.init_time	= r8a7790_timer_init,
+	.init_time	= rcar_gen2_timer_init,
 	.dt_compat	= r8a7790_boards_compat_dt,
 MACHINE_END
 #endif /* CONFIG_USE_OF */
diff --git a/arch/arm/mach-shmobile/setup-rcar-gen2.c b/arch/arm/mach-shmobile/setup-rcar-gen2.c
new file mode 100644
index 000000000000..5734c24bf6c7
--- /dev/null
+++ b/arch/arm/mach-shmobile/setup-rcar-gen2.c
@@ -0,0 +1,91 @@
+/*
+ * R-Car Generation 2 support
+ *
+ * Copyright (C) 2013  Renesas Solutions Corp.
+ * Copyright (C) 2013  Magnus Damm
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/clocksource.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <mach/common.h>
+#include <mach/rcar-gen2.h>
+#include <asm/mach/arch.h>
+
+#define MODEMR 0xe6160060
+
+u32 __init rcar_gen2_read_mode_pins(void)
+{
+	void __iomem *modemr = ioremap_nocache(MODEMR, 4);
+	u32 mode;
+
+	BUG_ON(!modemr);
+	mode = ioread32(modemr);
+	iounmap(modemr);
+
+	return mode;
+}
+
+#define CNTCR 0
+#define CNTFID0 0x20
+
+void __init rcar_gen2_timer_init(void)
+{
+#ifdef CONFIG_ARM_ARCH_TIMER
+	u32 mode = rcar_gen2_read_mode_pins();
+	void __iomem *base;
+	int extal_mhz = 0;
+	u32 freq;
+
+	/* At Linux boot time the r8a7790 arch timer comes up
+	 * with the counter disabled. Moreover, it may also report
+	 * a potentially incorrect fixed 13 MHz frequency. To be
+	 * correct these registers need to be updated to use the
+	 * frequency EXTAL / 2 which can be determined by the MD pins.
+	 */
+
+	switch (mode & (MD(14) | MD(13))) {
+	case 0:
+		extal_mhz = 15;
+		break;
+	case MD(13):
+		extal_mhz = 20;
+		break;
+	case MD(14):
+		extal_mhz = 26;
+		break;
+	case MD(13) | MD(14):
+		extal_mhz = 30;
+		break;
+	}
+
+	/* The arch timer frequency equals EXTAL / 2 */
+	freq = extal_mhz * (1000000 / 2);
+
+	/* Remap "armgcnt address map" space */
+	base = ioremap(0xe6080000, PAGE_SIZE);
+
+	/* Update registers with correct frequency */
+	iowrite32(freq, base + CNTFID0);
+	asm volatile("mcr p15, 0, %0, c14, c0, 0" : : "r" (freq));
+
+	/* make sure arch timer is started by setting bit 0 of CNTCR */
+	iowrite32(1, base + CNTCR);
+	iounmap(base);
+#endif /* CONFIG_ARM_ARCH_TIMER */
+
+	clocksource_of_init();
+}
-- 
cgit 


From 4275881fcacae2b1662d64e7989959ef3c33cf52 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 1 Oct 2013 17:11:53 +0900
Subject: ARM: shmobile: Introduce r8a7791_add_standard_devices()

Introduce the function r8a7791_add_standard_devices() that
follows the same style as other mach-shmobile SoC code and
allows C version of board code to add on-chip devices.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/include/mach/r8a7791.h | 1 +
 arch/arm/mach-shmobile/setup-r8a7791.c        | 5 +++++
 2 files changed, 6 insertions(+)

diff --git a/arch/arm/mach-shmobile/include/mach/r8a7791.h b/arch/arm/mach-shmobile/include/mach/r8a7791.h
index 2e6d66131083..2a86a5394672 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7791.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7791.h
@@ -1,6 +1,7 @@
 #ifndef __ASM_R8A7791_H__
 #define __ASM_R8A7791_H__
 
+void r8a7791_add_standard_devices(void);
 void r8a7791_add_dt_devices(void);
 void r8a7791_clock_init(void);
 void r8a7791_init_early(void);
diff --git a/arch/arm/mach-shmobile/setup-r8a7791.c b/arch/arm/mach-shmobile/setup-r8a7791.c
index b56399d2e1de..350dfc4918e3 100644
--- a/arch/arm/mach-shmobile/setup-r8a7791.c
+++ b/arch/arm/mach-shmobile/setup-r8a7791.c
@@ -129,6 +129,11 @@ void __init r8a7791_add_dt_devices(void)
 	r8a7791_register_cmt(00);
 }
 
+void __init r8a7791_add_standard_devices(void)
+{
+	r8a7791_add_dt_devices();
+}
+
 void __init r8a7791_init_early(void)
 {
 #ifndef CONFIG_ARM_ARCH_TIMER
-- 
cgit 


From 454d320c80fa07c30267711fea08da0d24f28224 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 1 Oct 2013 17:12:19 +0900
Subject: ARM: shmobile: r8a7791 IRQC platform device support

Add a platform device for the r8a7791 IRQC hardware
driving IRQ pins IRQ0 to IRQ9. The Linux interrupt
number is statically assigned to allow board code
written in C to make use of static interrupt numbers.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/setup-r8a7791.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm/mach-shmobile/setup-r8a7791.c b/arch/arm/mach-shmobile/setup-r8a7791.c
index 350dfc4918e3..ba4fa3edf44f 100644
--- a/arch/arm/mach-shmobile/setup-r8a7791.c
+++ b/arch/arm/mach-shmobile/setup-r8a7791.c
@@ -22,6 +22,7 @@
 #include <linux/irq.h>
 #include <linux/kernel.h>
 #include <linux/of_platform.h>
+#include <linux/platform_data/irq-renesas-irqc.h>
 #include <linux/serial_sci.h>
 #include <linux/sh_timer.h>
 #include <mach/common.h>
@@ -109,6 +110,31 @@ static const struct resource cmt00_resources[] __initconst = {
 					  &cmt##idx##_platform_data,	\
 					  sizeof(struct sh_timer_config))
 
+static struct renesas_irqc_config irqc0_data = {
+	.irq_base = irq_pin(0), /* IRQ0 -> IRQ9 */
+};
+
+static struct resource irqc0_resources[] = {
+	DEFINE_RES_MEM(0xe61c0000, 0x200), /* IRQC Event Detector Block_0 */
+	DEFINE_RES_IRQ(gic_spi(0)), /* IRQ0 */
+	DEFINE_RES_IRQ(gic_spi(1)), /* IRQ1 */
+	DEFINE_RES_IRQ(gic_spi(2)), /* IRQ2 */
+	DEFINE_RES_IRQ(gic_spi(3)), /* IRQ3 */
+	DEFINE_RES_IRQ(gic_spi(12)), /* IRQ4 */
+	DEFINE_RES_IRQ(gic_spi(13)), /* IRQ5 */
+	DEFINE_RES_IRQ(gic_spi(14)), /* IRQ6 */
+	DEFINE_RES_IRQ(gic_spi(15)), /* IRQ7 */
+	DEFINE_RES_IRQ(gic_spi(16)), /* IRQ8 */
+	DEFINE_RES_IRQ(gic_spi(17)), /* IRQ9 */
+};
+
+#define r8a7791_register_irqc(idx)					\
+	platform_device_register_resndata(&platform_bus, "renesas_irqc", \
+					  idx, irqc##idx##_resources,	\
+					  ARRAY_SIZE(irqc##idx##_resources), \
+					  &irqc##idx##_data,		\
+					  sizeof(struct renesas_irqc_config))
+
 void __init r8a7791_add_dt_devices(void)
 {
 	r8a7791_register_scif(SCIFA0);
@@ -132,6 +158,7 @@ void __init r8a7791_add_dt_devices(void)
 void __init r8a7791_add_standard_devices(void)
 {
 	r8a7791_add_dt_devices();
+	r8a7791_register_irqc(0);
 }
 
 void __init r8a7791_init_early(void)
-- 
cgit 


From cd8344f4ddfe58ef9ca1743eff3a121f00b75302 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 1 Oct 2013 17:12:48 +0900
Subject: ARM: shmobile: r8a7791 Arch timer workaround

Make use of the R-Car Gen2 arch timer workaround on r8a7791.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/Makefile        | 2 +-
 arch/arm/mach-shmobile/setup-r8a7791.c | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 6b7a02ee8b93..3c37e8271dfe 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -16,7 +16,7 @@ obj-$(CONFIG_ARCH_R8A7778)	+= setup-r8a7778.o
 obj-$(CONFIG_ARCH_R8A7779)	+= setup-r8a7779.o
 obj-$(CONFIG_ARCH_R8A7790)	+= setup-r8a7790.o
 obj-$(CONFIG_ARCH_R8A7790)	+= setup-r8a7790.o setup-rcar-gen2.o
-obj-$(CONFIG_ARCH_R8A7791)	+= setup-r8a7791.o
+obj-$(CONFIG_ARCH_R8A7791)	+= setup-r8a7791.o setup-rcar-gen2.o
 obj-$(CONFIG_ARCH_EMEV2)	+= setup-emev2.o
 
 # Clock objects
diff --git a/arch/arm/mach-shmobile/setup-r8a7791.c b/arch/arm/mach-shmobile/setup-r8a7791.c
index ba4fa3edf44f..cb3859b4cc95 100644
--- a/arch/arm/mach-shmobile/setup-r8a7791.c
+++ b/arch/arm/mach-shmobile/setup-r8a7791.c
@@ -28,6 +28,7 @@
 #include <mach/common.h>
 #include <mach/irqs.h>
 #include <mach/r8a7791.h>
+#include <mach/rcar-gen2.h>
 #include <asm/mach/arch.h>
 
 #define SCIF_COMMON(scif_type, baseaddr, irq)			\
@@ -176,6 +177,7 @@ static const char *r8a7791_boards_compat_dt[] __initdata = {
 
 DT_MACHINE_START(R8A7791_DT, "Generic R8A7791 (Flattened Device Tree)")
 	.init_early	= r8a7791_init_early,
+	.init_time	= rcar_gen2_timer_init,
 	.dt_compat	= r8a7791_boards_compat_dt,
 MACHINE_END
 #endif /* CONFIG_USE_OF */
-- 
cgit 


From e3da5b36d48a8e55d1549da016e4c38ff3c0d0fc Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Thu, 19 Sep 2013 05:11:11 +0900
Subject: ARM: shmobile: Initial r7s72100 SoC support

Add initial support for the r7272100 SoC including:
 - Single Cortex-A9 CPU Core
 - GIC

No static virtual mappings are used, all the components
make use of ioremap(). DT_MACHINE_START is still wrapped
in CONFIG_USE_OF to match other mach-shmobile code.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/r7s72100.dtsi                |  36 +++++
 arch/arm/mach-shmobile/Kconfig                 |   6 +
 arch/arm/mach-shmobile/Makefile                |   2 +
 arch/arm/mach-shmobile/clock-r7s72100.c        | 194 +++++++++++++++++++++++++
 arch/arm/mach-shmobile/include/mach/r7s72100.h |   7 +
 arch/arm/mach-shmobile/setup-r7s72100.c        |  43 ++++++
 6 files changed, 288 insertions(+)
 create mode 100644 arch/arm/boot/dts/r7s72100.dtsi
 create mode 100644 arch/arm/mach-shmobile/clock-r7s72100.c
 create mode 100644 arch/arm/mach-shmobile/include/mach/r7s72100.h
 create mode 100644 arch/arm/mach-shmobile/setup-r7s72100.c

diff --git a/arch/arm/boot/dts/r7s72100.dtsi b/arch/arm/boot/dts/r7s72100.dtsi
new file mode 100644
index 000000000000..46b82aa7dc4e
--- /dev/null
+++ b/arch/arm/boot/dts/r7s72100.dtsi
@@ -0,0 +1,36 @@
+/*
+ * Device Tree Source for the r7s72100 SoC
+ *
+ * Copyright (C) 2013 Renesas Solutions Corp.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/ {
+	compatible = "renesas,r7s72100";
+	interrupt-parent = <&gic>;
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			reg = <0>;
+		};
+	};
+
+	gic: interrupt-controller@e8201000 {
+		compatible = "arm,cortex-a9-gic";
+		#interrupt-cells = <3>;
+		#address-cells = <0>;
+		interrupt-controller;
+		reg = <0xe8201000 0x1000>,
+			<0xe8202000 0x1000>;
+	};
+};
diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index b45240512ce0..5dd5f9f7897a 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -113,6 +113,12 @@ config ARCH_EMEV2
 	select ARM_GIC
 	select CPU_V7
 
+config ARCH_R7S72100
+	bool "RZ/A1H (R7S72100)"
+	select ARM_GIC
+	select CPU_V7
+	select SH_CLK_CPG
+
 comment "SH-Mobile Board Type"
 
 config MACH_APE6EVM
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 3c37e8271dfe..95e48d129ddc 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -18,6 +18,7 @@ obj-$(CONFIG_ARCH_R8A7790)	+= setup-r8a7790.o
 obj-$(CONFIG_ARCH_R8A7790)	+= setup-r8a7790.o setup-rcar-gen2.o
 obj-$(CONFIG_ARCH_R8A7791)	+= setup-r8a7791.o setup-rcar-gen2.o
 obj-$(CONFIG_ARCH_EMEV2)	+= setup-emev2.o
+obj-$(CONFIG_ARCH_R7S72100)	+= setup-r7s72100.o
 
 # Clock objects
 ifndef CONFIG_COMMON_CLK
@@ -31,6 +32,7 @@ obj-$(CONFIG_ARCH_R8A7779)	+= clock-r8a7779.o
 obj-$(CONFIG_ARCH_R8A7790)	+= clock-r8a7790.o
 obj-$(CONFIG_ARCH_R8A7791)	+= clock-r8a7791.o
 obj-$(CONFIG_ARCH_EMEV2)	+= clock-emev2.o
+obj-$(CONFIG_ARCH_R7S72100)	+= clock-r7s72100.o
 endif
 
 # SMP objects
diff --git a/arch/arm/mach-shmobile/clock-r7s72100.c b/arch/arm/mach-shmobile/clock-r7s72100.c
new file mode 100644
index 000000000000..1e71094f809d
--- /dev/null
+++ b/arch/arm/mach-shmobile/clock-r7s72100.c
@@ -0,0 +1,194 @@
+/*
+ * r7a72100 clock framework support
+ *
+ * Copyright (C) 2013  Renesas Solutions Corp.
+ * Copyright (C) 2012  Phil Edworthy
+ * Copyright (C) 2011  Magnus Damm
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/sh_clk.h>
+#include <linux/clkdev.h>
+#include <mach/common.h>
+#include <mach/r7s72100.h>
+
+/* registers */
+#define FRQCR		0xfcfe0010
+#define FRQCR2		0xfcfe0014
+#define STBCR3		0xfcfe0420
+#define STBCR4		0xfcfe0424
+
+#define PLL_RATE 30
+
+static struct clk_mapping cpg_mapping = {
+	.phys	= 0xfcfe0000,
+	.len	= 0x1000,
+};
+
+/* Fixed 32 KHz root clock for RTC */
+static struct clk r_clk = {
+	.rate           = 32768,
+};
+
+/*
+ * Default rate for the root input clock, reset this with clk_set_rate()
+ * from the platform code.
+ */
+static struct clk extal_clk = {
+	.rate		= 13330000,
+	.mapping	= &cpg_mapping,
+};
+
+static unsigned long pll_recalc(struct clk *clk)
+{
+	return clk->parent->rate * PLL_RATE;
+}
+
+static struct sh_clk_ops pll_clk_ops = {
+	.recalc		= pll_recalc,
+};
+
+static struct clk pll_clk = {
+	.ops		= &pll_clk_ops,
+	.parent		= &extal_clk,
+	.flags		= CLK_ENABLE_ON_INIT,
+};
+
+static unsigned long bus_recalc(struct clk *clk)
+{
+	return clk->parent->rate * 2 / 3;
+}
+
+static struct sh_clk_ops bus_clk_ops = {
+	.recalc		= bus_recalc,
+};
+
+static struct clk bus_clk = {
+	.ops		= &bus_clk_ops,
+	.parent		= &pll_clk,
+	.flags		= CLK_ENABLE_ON_INIT,
+};
+
+static unsigned long peripheral0_recalc(struct clk *clk)
+{
+	return clk->parent->rate / 12;
+}
+
+static struct sh_clk_ops peripheral0_clk_ops = {
+	.recalc		= peripheral0_recalc,
+};
+
+static struct clk peripheral0_clk = {
+	.ops		= &peripheral0_clk_ops,
+	.parent		= &pll_clk,
+	.flags		= CLK_ENABLE_ON_INIT,
+};
+
+static unsigned long peripheral1_recalc(struct clk *clk)
+{
+	return clk->parent->rate / 6;
+}
+
+static struct sh_clk_ops peripheral1_clk_ops = {
+	.recalc		= peripheral1_recalc,
+};
+
+static struct clk peripheral1_clk = {
+	.ops		= &peripheral1_clk_ops,
+	.parent		= &pll_clk,
+	.flags		= CLK_ENABLE_ON_INIT,
+};
+
+struct clk *main_clks[] = {
+	&r_clk,
+	&extal_clk,
+	&pll_clk,
+	&bus_clk,
+	&peripheral0_clk,
+	&peripheral1_clk,
+};
+
+static int div2[] = { 1, 3, 0, 3 }; /* 1, 2/3, reserve, 1/3 */
+static int multipliers[] = { 1, 2, 1, 1 };
+
+static struct clk_div_mult_table div4_div_mult_table = {
+	.divisors = div2,
+	.nr_divisors = ARRAY_SIZE(div2),
+	.multipliers = multipliers,
+	.nr_multipliers = ARRAY_SIZE(multipliers),
+};
+
+static struct clk_div4_table div4_table = {
+	.div_mult_table = &div4_div_mult_table,
+};
+
+enum { DIV4_I,
+	DIV4_NR };
+
+#define DIV4(_reg, _bit, _mask, _flags) \
+	SH_CLK_DIV4(&pll_clk, _reg, _bit, _mask, _flags)
+
+/* The mask field specifies the div2 entries that are valid */
+struct clk div4_clks[DIV4_NR] = {
+	[DIV4_I]  = DIV4(FRQCR, 8, 0xB, CLK_ENABLE_REG_16BIT
+					| CLK_ENABLE_ON_INIT),
+};
+
+enum { MSTP47, MSTP46, MSTP45, MSTP44, MSTP43, MSTP42, MSTP41, MSTP40,
+	MSTP33,	MSTP_NR };
+
+static struct clk mstp_clks[MSTP_NR] = {
+	[MSTP47] = SH_CLK_MSTP8(&peripheral1_clk, STBCR4, 7, 0), /* SCIF0 */
+	[MSTP46] = SH_CLK_MSTP8(&peripheral1_clk, STBCR4, 6, 0), /* SCIF1 */
+	[MSTP45] = SH_CLK_MSTP8(&peripheral1_clk, STBCR4, 5, 0), /* SCIF2 */
+	[MSTP44] = SH_CLK_MSTP8(&peripheral1_clk, STBCR4, 4, 0), /* SCIF3 */
+	[MSTP43] = SH_CLK_MSTP8(&peripheral1_clk, STBCR4, 3, 0), /* SCIF4 */
+	[MSTP42] = SH_CLK_MSTP8(&peripheral1_clk, STBCR4, 2, 0), /* SCIF5 */
+	[MSTP41] = SH_CLK_MSTP8(&peripheral1_clk, STBCR4, 1, 0), /* SCIF6 */
+	[MSTP40] = SH_CLK_MSTP8(&peripheral1_clk, STBCR4, 0, 0), /* SCIF7 */
+	[MSTP33] = SH_CLK_MSTP8(&peripheral0_clk, STBCR3, 3, 0), /* MTU2 */
+};
+
+static struct clk_lookup lookups[] = {
+	/* main clocks */
+	CLKDEV_CON_ID("rclk", &r_clk),
+	CLKDEV_CON_ID("extal", &extal_clk),
+	CLKDEV_CON_ID("pll_clk", &pll_clk),
+	CLKDEV_CON_ID("peripheral_clk", &peripheral1_clk),
+
+	/* DIV4 clocks */
+	CLKDEV_CON_ID("cpu_clk", &div4_clks[DIV4_I]),
+
+	/* MSTP clocks */
+};
+
+void __init r7s72100_clock_init(void)
+{
+	int k, ret = 0;
+
+	for (k = 0; !ret && (k < ARRAY_SIZE(main_clks)); k++)
+		ret = clk_register(main_clks[k]);
+
+	clkdev_add_table(lookups, ARRAY_SIZE(lookups));
+
+	if (!ret)
+		ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table);
+
+	if (!ret)
+		ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
+
+	if (!ret)
+		shmobile_clk_init();
+	else
+		panic("failed to setup rza1 clocks\n");
+}
diff --git a/arch/arm/mach-shmobile/include/mach/r7s72100.h b/arch/arm/mach-shmobile/include/mach/r7s72100.h
new file mode 100644
index 000000000000..f78062e98bd4
--- /dev/null
+++ b/arch/arm/mach-shmobile/include/mach/r7s72100.h
@@ -0,0 +1,7 @@
+#ifndef __ASM_R7S72100_H__
+#define __ASM_R7S72100_H__
+
+void r7s72100_clock_init(void);
+void r7s72100_init_early(void);
+
+#endif /* __ASM_R7S72100_H__ */
diff --git a/arch/arm/mach-shmobile/setup-r7s72100.c b/arch/arm/mach-shmobile/setup-r7s72100.c
new file mode 100644
index 000000000000..c1aded0984a8
--- /dev/null
+++ b/arch/arm/mach-shmobile/setup-r7s72100.c
@@ -0,0 +1,43 @@
+/*
+ * r7s72100 processor support
+ *
+ * Copyright (C) 2013  Renesas Solutions Corp.
+ * Copyright (C) 2013  Magnus Damm
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/of_platform.h>
+#include <mach/common.h>
+#include <mach/r7s72100.h>
+#include <asm/mach/arch.h>
+
+void __init r7s72100_init_early(void)
+{
+	shmobile_setup_delay(400, 1, 3); /* Cortex-A9 @ 400MHz */
+}
+
+#ifdef CONFIG_USE_OF
+static const char *r7s72100_boards_compat_dt[] __initdata = {
+	"renesas,r7s72100",
+	NULL,
+};
+
+DT_MACHINE_START(R7S72100_DT, "Generic R7S72100 (Flattened Device Tree)")
+	.init_early	= r7s72100_init_early,
+	.dt_compat	= r7s72100_boards_compat_dt,
+MACHINE_END
+#endif /* CONFIG_USE_OF */
-- 
cgit 


From f6ca6f11c921b227e33c5e91084be5ef30c32771 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Thu, 19 Sep 2013 05:11:20 +0900
Subject: ARM: shmobile: r7s72100 SCIF support

Add SCIF serial port support to the r7s72100 SoC by
adding platform devices for SCIF0 -> SCIF7 together with
clock bindings. DT device description is excluded at
this point since such bindings are still under
development.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/clock-r7s72100.c        |  8 +++++
 arch/arm/mach-shmobile/include/mach/r7s72100.h |  1 +
 arch/arm/mach-shmobile/setup-r7s72100.c        | 45 ++++++++++++++++++++++++++
 3 files changed, 54 insertions(+)

diff --git a/arch/arm/mach-shmobile/clock-r7s72100.c b/arch/arm/mach-shmobile/clock-r7s72100.c
index 1e71094f809d..4aba20ca127e 100644
--- a/arch/arm/mach-shmobile/clock-r7s72100.c
+++ b/arch/arm/mach-shmobile/clock-r7s72100.c
@@ -170,6 +170,14 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_CON_ID("cpu_clk", &div4_clks[DIV4_I]),
 
 	/* MSTP clocks */
+	CLKDEV_ICK_ID("sci_fck", "sh-sci.0", &mstp_clks[MSTP47]),
+	CLKDEV_ICK_ID("sci_fck", "sh-sci.1", &mstp_clks[MSTP46]),
+	CLKDEV_ICK_ID("sci_fck", "sh-sci.2", &mstp_clks[MSTP45]),
+	CLKDEV_ICK_ID("sci_fck", "sh-sci.3", &mstp_clks[MSTP44]),
+	CLKDEV_ICK_ID("sci_fck", "sh-sci.4", &mstp_clks[MSTP43]),
+	CLKDEV_ICK_ID("sci_fck", "sh-sci.5", &mstp_clks[MSTP42]),
+	CLKDEV_ICK_ID("sci_fck", "sh-sci.6", &mstp_clks[MSTP41]),
+	CLKDEV_ICK_ID("sci_fck", "sh-sci.7", &mstp_clks[MSTP40]),
 };
 
 void __init r7s72100_clock_init(void)
diff --git a/arch/arm/mach-shmobile/include/mach/r7s72100.h b/arch/arm/mach-shmobile/include/mach/r7s72100.h
index f78062e98bd4..5f34b20ecd4a 100644
--- a/arch/arm/mach-shmobile/include/mach/r7s72100.h
+++ b/arch/arm/mach-shmobile/include/mach/r7s72100.h
@@ -1,6 +1,7 @@
 #ifndef __ASM_R7S72100_H__
 #define __ASM_R7S72100_H__
 
+void r7s72100_add_dt_devices(void);
 void r7s72100_clock_init(void);
 void r7s72100_init_early(void);
 
diff --git a/arch/arm/mach-shmobile/setup-r7s72100.c b/arch/arm/mach-shmobile/setup-r7s72100.c
index c1aded0984a8..d4eb509a1c87 100644
--- a/arch/arm/mach-shmobile/setup-r7s72100.c
+++ b/arch/arm/mach-shmobile/setup-r7s72100.c
@@ -21,10 +21,55 @@
 #include <linux/irq.h>
 #include <linux/kernel.h>
 #include <linux/of_platform.h>
+#include <linux/serial_sci.h>
 #include <mach/common.h>
+#include <mach/irqs.h>
 #include <mach/r7s72100.h>
 #include <asm/mach/arch.h>
 
+#define SCIF_DATA(index, baseaddr, irq)					\
+[index] = {								\
+	.type		= PORT_SCIF,					\
+	.regtype	= SCIx_SH2_SCIF_FIFODATA_REGTYPE,		\
+	.flags		= UPF_BOOT_AUTOCONF | UPF_IOREMAP,		\
+	.scbrr_algo_id	= SCBRR_ALGO_2,					\
+	.scscr		= SCSCR_RIE | SCSCR_TIE | SCSCR_RE | SCSCR_TE |	\
+			  SCSCR_REIE,					\
+	.mapbase	= baseaddr,					\
+	.irqs		= { irq + 1, irq + 2, irq + 3, irq },		\
+}
+
+enum { SCIF0, SCIF1, SCIF2, SCIF3, SCIF4, SCIF5, SCIF6, SCIF7 };
+
+static const struct plat_sci_port scif[] __initconst = {
+	SCIF_DATA(SCIF0, 0xe8007000, gic_iid(221)), /* SCIF0 */
+	SCIF_DATA(SCIF1, 0xe8007800, gic_iid(225)), /* SCIF1 */
+	SCIF_DATA(SCIF2, 0xe8008000, gic_iid(229)), /* SCIF2 */
+	SCIF_DATA(SCIF3, 0xe8008800, gic_iid(233)), /* SCIF3 */
+	SCIF_DATA(SCIF4, 0xe8009000, gic_iid(237)), /* SCIF4 */
+	SCIF_DATA(SCIF5, 0xe8009800, gic_iid(241)), /* SCIF5 */
+	SCIF_DATA(SCIF6, 0xe800a000, gic_iid(245)), /* SCIF6 */
+	SCIF_DATA(SCIF7, 0xe800a800, gic_iid(249)), /* SCIF7 */
+};
+
+static inline void r7s72100_register_scif(int idx)
+{
+	platform_device_register_data(&platform_bus, "sh-sci", idx, &scif[idx],
+				      sizeof(struct plat_sci_port));
+}
+
+void __init r7s72100_add_dt_devices(void)
+{
+	r7s72100_register_scif(SCIF0);
+	r7s72100_register_scif(SCIF1);
+	r7s72100_register_scif(SCIF2);
+	r7s72100_register_scif(SCIF3);
+	r7s72100_register_scif(SCIF4);
+	r7s72100_register_scif(SCIF5);
+	r7s72100_register_scif(SCIF6);
+	r7s72100_register_scif(SCIF7);
+}
+
 void __init r7s72100_init_early(void)
 {
 	shmobile_setup_delay(400, 1, 3); /* Cortex-A9 @ 400MHz */
-- 
cgit 


From 2238577b2c91587daf5f87ce414ef5b3703f81af Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Wed, 2 Oct 2013 01:31:40 -0700
Subject: ARM: shmobile: r8a7778: split r8a7778_init_irq_extpin() for DT

r8a7778 INTC needs IRL pin mode settings to determine
behavior of IRQ0 - IRQ3, and r8a7778_init_irq_extpin()
is controlling it via irlm parameter.
But this function registers renesas_intc_irqpin driver
if irlm was set, and this value depends on platform.
This is not good for DT.
This patch splits r8a7778_init_irq_extpin() function
into "mode settings" and "funtion register" parts.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/include/mach/r8a7778.h | 1 +
 arch/arm/mach-shmobile/setup-r8a7778.c        | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/include/mach/r8a7778.h b/arch/arm/mach-shmobile/include/mach/r8a7778.h
index 1d6fe973e8b4..dbe221a484d5 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7778.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7778.h
@@ -41,6 +41,7 @@ extern void r8a7778_init_delay(void);
 extern void r8a7778_init_irq_dt(void);
 extern void r8a7778_clock_init(void);
 extern void r8a7778_init_irq_extpin(int irlm);
+extern void r8a7778_init_irq_extpin_dt(int irlm);
 extern void r8a7778_pinmux_init(void);
 
 extern int r8a7778_usb_phy_power(bool enable);
diff --git a/arch/arm/mach-shmobile/setup-r8a7778.c b/arch/arm/mach-shmobile/setup-r8a7778.c
index fa1b7e44a973..16d49aa8b5db 100644
--- a/arch/arm/mach-shmobile/setup-r8a7778.c
+++ b/arch/arm/mach-shmobile/setup-r8a7778.c
@@ -476,7 +476,7 @@ static struct resource irqpin_resources[] __initdata = {
 	DEFINE_RES_IRQ(gic_iid(0x3e)), /* IRQ3 */
 };
 
-void __init r8a7778_init_irq_extpin(int irlm)
+void __init r8a7778_init_irq_extpin_dt(int irlm)
 {
 	void __iomem *icr0 = ioremap_nocache(0xfe780000, PAGE_SIZE);
 	unsigned long tmp;
@@ -494,7 +494,11 @@ void __init r8a7778_init_irq_extpin(int irlm)
 	tmp |= (1 << 21); /* LVLMODE = 1 */
 	iowrite32(tmp, icr0);
 	iounmap(icr0);
+}
 
+void __init r8a7778_init_irq_extpin(int irlm)
+{
+	r8a7778_init_irq_extpin_dt(irlm);
 	if (irlm)
 		platform_device_register_resndata(
 			&platform_bus, "renesas_intc_irqpin", -1,
-- 
cgit 


From 31e4e292f85189f01949124b04aabb3b50ba3e86 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Wed, 2 Oct 2013 01:38:23 -0700
Subject: ARM: shmobile: r8a7779: split r8a7779_init_irq_extpin() for DT

r8a7779 INTC needs IRL pin mode settings to determine
behavior of IRQ0 - IRQ3, and r8a7779_init_irq_extpin()
is controlling it via irlm parameter.
But this function registers renesas_intc_irqpin driver
if irlm was set, and this value depends on platform.
This is not good for DT.
This patch splits r8a7779_init_irq_extpin() function
into "mode settings" and "funtion register" parts

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/include/mach/r8a7779.h | 1 +
 arch/arm/mach-shmobile/setup-r8a7779.c        | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/include/mach/r8a7779.h b/arch/arm/mach-shmobile/include/mach/r8a7779.h
index 31e87b92a9c3..17af34ed89c8 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7779.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7779.h
@@ -33,6 +33,7 @@ static inline struct r8a7779_pm_ch *to_r8a7779_ch(struct generic_pm_domain *d)
 
 extern void r8a7779_init_delay(void);
 extern void r8a7779_init_irq_extpin(int irlm);
+extern void r8a7779_init_irq_extpin_dt(int irlm);
 extern void r8a7779_init_irq_dt(void);
 extern void r8a7779_map_io(void);
 extern void r8a7779_earlytimer_init(void);
diff --git a/arch/arm/mach-shmobile/setup-r8a7779.c b/arch/arm/mach-shmobile/setup-r8a7779.c
index eacb2f783693..13049e9d691c 100644
--- a/arch/arm/mach-shmobile/setup-r8a7779.c
+++ b/arch/arm/mach-shmobile/setup-r8a7779.c
@@ -98,7 +98,7 @@ static struct resource irqpin0_resources[] __initdata = {
 	DEFINE_RES_IRQ(gic_spi(30)), /* IRQ3 */
 };
 
-void __init r8a7779_init_irq_extpin(int irlm)
+void __init r8a7779_init_irq_extpin_dt(int irlm)
 {
 	void __iomem *icr0 = ioremap_nocache(0xfe780000, PAGE_SIZE);
 	u32 tmp;
@@ -116,7 +116,11 @@ void __init r8a7779_init_irq_extpin(int irlm)
 	tmp |= (1 << 21); /* LVLMODE = 1 */
 	iowrite32(tmp, icr0);
 	iounmap(icr0);
+}
 
+void __init r8a7779_init_irq_extpin(int irlm)
+{
+	r8a7779_init_irq_extpin_dt(irlm);
 	if (irlm)
 		platform_device_register_resndata(
 			&platform_bus, "renesas_intc_irqpin", -1,
-- 
cgit 


From 687c27b07050c21a62c4c975777c89e698649a6b Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 1 Oct 2013 17:13:16 +0900
Subject: ARM: shmobile: r8a7791 SMP support

Tie in the APMU SMP code on r8a7791. When used together
with the secondary CPU device node and smp_ops in the
board specific code then this will allow use of the
two Cortex-A15 cores in the r8a7791 SoC.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/Makefile               |  1 +
 arch/arm/mach-shmobile/include/mach/r8a7791.h |  1 +
 arch/arm/mach-shmobile/setup-r8a7791.c        |  1 +
 arch/arm/mach-shmobile/smp-r8a7791.c          | 62 +++++++++++++++++++++++++++
 4 files changed, 65 insertions(+)
 create mode 100644 arch/arm/mach-shmobile/smp-r8a7791.c

diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 95e48d129ddc..f2d40edadcc9 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -40,6 +40,7 @@ smp-y				:= platsmp.o headsmp.o
 smp-$(CONFIG_ARCH_SH73A0)	+= smp-sh73a0.o headsmp-scu.o platsmp-scu.o
 smp-$(CONFIG_ARCH_R8A7779)	+= smp-r8a7779.o headsmp-scu.o platsmp-scu.o
 smp-$(CONFIG_ARCH_R8A7790)	+= smp-r8a7790.o platsmp-apmu.o
+smp-$(CONFIG_ARCH_R8A7791)	+= smp-r8a7791.o platsmp-apmu.o
 smp-$(CONFIG_ARCH_EMEV2)	+= smp-emev2.o headsmp-scu.o platsmp-scu.o
 
 # IRQ objects
diff --git a/arch/arm/mach-shmobile/include/mach/r8a7791.h b/arch/arm/mach-shmobile/include/mach/r8a7791.h
index 2a86a5394672..051ead3c286e 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7791.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7791.h
@@ -5,5 +5,6 @@ void r8a7791_add_standard_devices(void);
 void r8a7791_add_dt_devices(void);
 void r8a7791_clock_init(void);
 void r8a7791_init_early(void);
+extern struct smp_operations r8a7791_smp_ops;
 
 #endif /* __ASM_R8A7791_H__ */
diff --git a/arch/arm/mach-shmobile/setup-r8a7791.c b/arch/arm/mach-shmobile/setup-r8a7791.c
index cb3859b4cc95..d9393d61ee27 100644
--- a/arch/arm/mach-shmobile/setup-r8a7791.c
+++ b/arch/arm/mach-shmobile/setup-r8a7791.c
@@ -176,6 +176,7 @@ static const char *r8a7791_boards_compat_dt[] __initdata = {
 };
 
 DT_MACHINE_START(R8A7791_DT, "Generic R8A7791 (Flattened Device Tree)")
+	.smp		= smp_ops(r8a7791_smp_ops),
 	.init_early	= r8a7791_init_early,
 	.init_time	= rcar_gen2_timer_init,
 	.dt_compat	= r8a7791_boards_compat_dt,
diff --git a/arch/arm/mach-shmobile/smp-r8a7791.c b/arch/arm/mach-shmobile/smp-r8a7791.c
new file mode 100644
index 000000000000..2df5bd190fe4
--- /dev/null
+++ b/arch/arm/mach-shmobile/smp-r8a7791.c
@@ -0,0 +1,62 @@
+/*
+ * SMP support for r8a7791
+ *
+ * Copyright (C) 2013 Renesas Solutions Corp.
+ * Copyright (C) 2013 Magnus Damm
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/smp.h>
+#include <linux/io.h>
+#include <asm/smp_plat.h>
+#include <mach/common.h>
+#include <mach/r8a7791.h>
+
+#define RST		0xe6160000
+#define CA15BAR		0x0020
+#define CA15RESCNT	0x0040
+#define RAM		0xe6300000
+
+static void __init r8a7791_smp_prepare_cpus(unsigned int max_cpus)
+{
+	void __iomem *p;
+	u32 bar;
+
+	/* let APMU code install data related to shmobile_boot_vector */
+	shmobile_smp_apmu_prepare_cpus(max_cpus);
+
+	/* RAM for jump stub, because BAR requires 256KB aligned address */
+	p = ioremap_nocache(RAM, shmobile_boot_size);
+	memcpy_toio(p, shmobile_boot_vector, shmobile_boot_size);
+	iounmap(p);
+
+	/* setup reset vectors */
+	p = ioremap_nocache(RST, 0x63);
+	bar = (RAM >> 8) & 0xfffffc00;
+	writel_relaxed(bar, p + CA15BAR);
+	writel_relaxed(bar | 0x10, p + CA15BAR);
+
+	/* enable clocks to all CPUs */
+	writel_relaxed((readl_relaxed(p + CA15RESCNT) & ~0x0f) | 0xa5a50000,
+		       p + CA15RESCNT);
+	iounmap(p);
+}
+
+struct smp_operations r8a7791_smp_ops __initdata = {
+	.smp_prepare_cpus	= r8a7791_smp_prepare_cpus,
+	.smp_boot_secondary	= shmobile_smp_apmu_boot_secondary,
+#ifdef CONFIG_HOTPLUG_CPU
+	.cpu_disable		= shmobile_smp_cpu_disable,
+	.cpu_die		= shmobile_smp_apmu_cpu_die,
+	.cpu_kill		= shmobile_smp_apmu_cpu_kill,
+#endif
+};
-- 
cgit 


From 7a2a7a371145e83ad60482313e8cd7501994df3a Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Mon, 22 Jul 2013 15:16:16 +0200
Subject: ARM: shmobile: ape6evm: add DMA support to MMCIF

Add DMA support for MMCIF on APE6EVM, using the shdma dmaengine driver.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-ape6evm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-shmobile/board-ape6evm.c b/arch/arm/mach-shmobile/board-ape6evm.c
index 7627385f516e..2de4b097aa1b 100644
--- a/arch/arm/mach-shmobile/board-ape6evm.c
+++ b/arch/arm/mach-shmobile/board-ape6evm.c
@@ -162,6 +162,8 @@ static struct regulator_consumer_supply vcc_sdhi1_consumers[] =
 /* MMCIF */
 static const struct sh_mmcif_plat_data mmcif0_pdata __initconst = {
 	.caps		= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE,
+	.slave_id_tx	= SHDMA_SLAVE_MMCIF0_TX,
+	.slave_id_rx	= SHDMA_SLAVE_MMCIF0_RX,
 	.ccs_unsupported = true,
 };
 
-- 
cgit 


From 5d6aa3435275a5308684f90c17424b055ef7f572 Mon Sep 17 00:00:00 2001
From: Max Filippov <max.filippov@cogentembedded.com>
Date: Sun, 25 Aug 2013 01:36:38 +0400
Subject: ARM: shmobile: bockw: enable DMA for SDHI0

Pass HPB-DMA slave IDs in the SDHI0 platform data to enable DMA in the SDHI
driver.

Signed-off-by: Max Filippov <max.filippov@cogentembedded.com>
[Sergei: removed #include <mach/dma.h>]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-bockw.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-shmobile/board-bockw.c b/arch/arm/mach-shmobile/board-bockw.c
index 330e84c14f8e..421cf1c229dc 100644
--- a/arch/arm/mach-shmobile/board-bockw.c
+++ b/arch/arm/mach-shmobile/board-bockw.c
@@ -196,6 +196,8 @@ static struct rcar_phy_platform_data usb_phy_platform_data __initdata =
 
 /* SDHI */
 static struct sh_mobile_sdhi_info sdhi0_info __initdata = {
+	.dma_slave_tx	= HPBDMA_SLAVE_SDHI0_TX,
+	.dma_slave_rx	= HPBDMA_SLAVE_SDHI0_RX,
 	.tmio_caps	= MMC_CAP_SD_HIGHSPEED,
 	.tmio_ocr_mask	= MMC_VDD_165_195 | MMC_VDD_32_33 | MMC_VDD_33_34,
 	.tmio_flags	= TMIO_MMC_HAS_IDLE_WAIT,
-- 
cgit 


From e6a8b11b82fdeaa78dad52552f945b772ee1a5c9 Mon Sep 17 00:00:00 2001
From: Max Filippov <max.filippov@cogentembedded.com>
Date: Sun, 25 Aug 2013 21:47:26 +0400
Subject: ARM: shmobile: marzen: enable DMA for SDHI0

Pass HPB-DMA slave IDs in the SDHI0 platform data to enable DMA in the SDHI
driver.

Signed-off-by: Max Filippov <max.filippov@cogentembedded.com>
[Sergei: removed #include <mach/dma.h>]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-marzen.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-shmobile/board-marzen.c b/arch/arm/mach-shmobile/board-marzen.c
index 434b213cc738..da1352f5f71b 100644
--- a/arch/arm/mach-shmobile/board-marzen.c
+++ b/arch/arm/mach-shmobile/board-marzen.c
@@ -125,6 +125,8 @@ static struct resource sdhi0_resources[] = {
 };
 
 static struct sh_mobile_sdhi_info sdhi0_platform_data = {
+	.dma_slave_tx = HPBDMA_SLAVE_SDHI0_TX,
+	.dma_slave_rx = HPBDMA_SLAVE_SDHI0_RX,
 	.tmio_flags = TMIO_MMC_WRPROTECT_DISABLE | TMIO_MMC_HAS_IDLE_WAIT,
 	.tmio_caps = MMC_CAP_SD_HIGHSPEED,
 };
-- 
cgit 


From a4ed412ed5934127ba88ba007b9a00617ae47f75 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Thu, 19 Sep 2013 05:11:29 +0900
Subject: ARM: shmobile: Genmai support

Genmai base board support making use of 128 MiB of memory,
the r7s7211 SoC with the SCIF2 serial port and CA9 core.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/Makefile            |  1 +
 arch/arm/boot/dts/r7s72100-genmai.dts | 31 +++++++++++++++++++++++++
 arch/arm/mach-shmobile/Kconfig        |  5 ++++
 arch/arm/mach-shmobile/Makefile       |  1 +
 arch/arm/mach-shmobile/Makefile.boot  |  1 +
 arch/arm/mach-shmobile/board-genmai.c | 43 +++++++++++++++++++++++++++++++++++
 6 files changed, 82 insertions(+)
 create mode 100644 arch/arm/boot/dts/r7s72100-genmai.dts
 create mode 100644 arch/arm/mach-shmobile/board-genmai.c

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 3b1c462e8575..295824d8410b 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -196,6 +196,7 @@ dtb-$(CONFIG_ARCH_U8500) += ste-snowball.dtb \
 dtb-$(CONFIG_ARCH_S3C24XX) += s3c2416-smdk2416.dtb
 dtb-$(CONFIG_ARCH_SHMOBILE) += emev2-kzm9d.dtb \
 	emev2-kzm9d-reference.dtb \
+	r7s72100-genmai.dtb \
 	r8a7740-armadillo800eva.dtb \
 	r8a7778-bockw.dtb \
 	r8a7778-bockw-reference.dtb \
diff --git a/arch/arm/boot/dts/r7s72100-genmai.dts b/arch/arm/boot/dts/r7s72100-genmai.dts
new file mode 100644
index 000000000000..1fb20f2333cc
--- /dev/null
+++ b/arch/arm/boot/dts/r7s72100-genmai.dts
@@ -0,0 +1,31 @@
+/*
+ * Device Tree Source for the Genmai board
+ *
+ * Copyright (C) 2013 Renesas Solutions Corp.
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/dts-v1/;
+/include/ "r7s72100.dtsi"
+
+/ {
+	model = "Genmai";
+	compatible = "renesas,genmai", "renesas,r7s72100";
+
+	chosen {
+		bootargs = "console=ttySC2,115200 ignore_loglevel rw root=/dev/nfs ip=dhcp";
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x08000000 0x08000000>;
+	};
+
+	lbsc {
+		#address-cells = <1>;
+		#size-cells = <1>;
+	};
+};
diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index 6e7d0a9b0be9..6a684ff62124 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -191,6 +191,11 @@ config MACH_BOCKW_REFERENCE
 
 	   This is intended to aid developers
 
+config MACH_GENMAI
+	bool "Genmai board"
+	depends on ARCH_R7S72100
+	select USE_OF
+
 config MACH_MARZEN
 	bool "MARZEN board"
 	depends on ARCH_R8A7779
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 663f8941153a..b3840ba1a445 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -60,6 +60,7 @@ obj-$(CONFIG_MACH_APE6EVM_REFERENCE)	+= board-ape6evm-reference.o
 obj-$(CONFIG_MACH_MACKEREL)	+= board-mackerel.o
 obj-$(CONFIG_MACH_BOCKW)	+= board-bockw.o
 obj-$(CONFIG_MACH_BOCKW_REFERENCE)	+= board-bockw-reference.o
+obj-$(CONFIG_MACH_GENMAI)	+= board-genmai.o
 obj-$(CONFIG_MACH_MARZEN)	+= board-marzen.o
 obj-$(CONFIG_MACH_MARZEN_REFERENCE)	+= board-marzen-reference.o
 obj-$(CONFIG_MACH_LAGER)	+= board-lager.o
diff --git a/arch/arm/mach-shmobile/Makefile.boot b/arch/arm/mach-shmobile/Makefile.boot
index 60e29e6c1126..c690b500eb61 100644
--- a/arch/arm/mach-shmobile/Makefile.boot
+++ b/arch/arm/mach-shmobile/Makefile.boot
@@ -6,6 +6,7 @@ loadaddr-$(CONFIG_MACH_ARMADILLO800EVA) += 0x40008000
 loadaddr-$(CONFIG_MACH_ARMADILLO800EVA_REFERENCE) += 0x40008000
 loadaddr-$(CONFIG_MACH_BOCKW) += 0x60008000
 loadaddr-$(CONFIG_MACH_BOCKW_REFERENCE) += 0x60008000
+loadaddr-$(CONFIG_MACH_GENMAI) += 0x8008000
 loadaddr-$(CONFIG_MACH_KOELSCH) += 0x40008000
 loadaddr-$(CONFIG_MACH_KZM9D) += 0x40008000
 loadaddr-$(CONFIG_MACH_KZM9D_REFERENCE) += 0x40008000
diff --git a/arch/arm/mach-shmobile/board-genmai.c b/arch/arm/mach-shmobile/board-genmai.c
new file mode 100644
index 000000000000..3e92e3c62d4c
--- /dev/null
+++ b/arch/arm/mach-shmobile/board-genmai.c
@@ -0,0 +1,43 @@
+/*
+ * Genmai board support
+ *
+ * Copyright (C) 2013  Renesas Solutions Corp.
+ * Copyright (C) 2013  Magnus Damm
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <mach/common.h>
+#include <mach/r7s72100.h>
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+static void __init genmai_add_standard_devices(void)
+{
+	r7s72100_clock_init();
+	r7s72100_add_dt_devices();
+}
+
+static const char * const genmai_boards_compat_dt[] __initconst = {
+	"renesas,genmai",
+	NULL,
+};
+
+DT_MACHINE_START(GENMAI_DT, "genmai")
+	.init_early	= r7s72100_init_early,
+	.init_machine	= genmai_add_standard_devices,
+	.dt_compat	= genmai_boards_compat_dt,
+MACHINE_END
-- 
cgit 


From 0749bead08db4e01588437a05a126bf4774dae23 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 1 Oct 2013 17:12:02 +0900
Subject: ARM: shmobile: Use r8a7791_add_standard_devices() on Koelsch

Use r8a7791_add_standard_devices() on Koelsch to let
the C version of the board code add on-chip devices.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-koelsch.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-shmobile/board-koelsch.c b/arch/arm/mach-shmobile/board-koelsch.c
index cc2d5e82b59a..278f12e88398 100644
--- a/arch/arm/mach-shmobile/board-koelsch.c
+++ b/arch/arm/mach-shmobile/board-koelsch.c
@@ -29,7 +29,7 @@
 static void __init koelsch_add_standard_devices(void)
 {
 	r8a7791_clock_init();
-	r8a7791_add_dt_devices();
+	r8a7791_add_standard_devices();
 }
 
 static const char * const koelsch_boards_compat_dt[] __initconst = {
-- 
cgit 


From f9c9eb7e768d049d2ae360be9e09f6a0be03e317 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 1 Oct 2013 17:12:57 +0900
Subject: ARM: shmobile: Use arch timer on Koelsch

Make use of the R-Car Gen2 arch timer workaround on Koelsch.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-koelsch.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-shmobile/board-koelsch.c b/arch/arm/mach-shmobile/board-koelsch.c
index 278f12e88398..ea5846e2e88c 100644
--- a/arch/arm/mach-shmobile/board-koelsch.c
+++ b/arch/arm/mach-shmobile/board-koelsch.c
@@ -23,6 +23,7 @@
 #include <linux/platform_device.h>
 #include <mach/common.h>
 #include <mach/r8a7791.h>
+#include <mach/rcar-gen2.h>
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
 
@@ -40,5 +41,6 @@ static const char * const koelsch_boards_compat_dt[] __initconst = {
 DT_MACHINE_START(KOELSCH_DT, "koelsch")
 	.init_early	= r8a7791_init_early,
 	.init_machine	= koelsch_add_standard_devices,
+	.init_time	= rcar_gen2_timer_init,
 	.dt_compat	= koelsch_boards_compat_dt,
 MACHINE_END
-- 
cgit 


From 9e8b48b61aeb2eb9a02e81021bfb8d89ea4645a4 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 1 Oct 2013 19:33:05 +0900
Subject: ARM: shmobile: Sync KZM9D DTS with KZM9D reference DTS

Copy the device nodes from KZM9D reference into the KZM9D
device tree file. This will allow us to use a single DTS
file regarless of kernel configuration. In case of legacy
C board code the device nodes may or may not be used, but
in the multiplatform case all the DT device nodes are used.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/emev2-kzm9d.dts | 33 ++++++++++++++++++++++++++++++++-
 1 file changed, 32 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/emev2-kzm9d.dts b/arch/arm/boot/dts/emev2-kzm9d.dts
index f92e812fdd9f..861aa7d6fc7d 100644
--- a/arch/arm/boot/dts/emev2-kzm9d.dts
+++ b/arch/arm/boot/dts/emev2-kzm9d.dts
@@ -1,7 +1,7 @@
 /*
  * Device Tree Source for the KZM9D board
  *
- * Copyright (C) 2012 Renesas Solutions Corp.
+ * Copyright (C) 2013 Renesas Solutions Corp.
  *
  * This file is licensed under the terms of the GNU General Public License
  * version 2.  This program is licensed "as is" without any warranty of any
@@ -23,4 +23,35 @@
 	chosen {
 		bootargs = "console=ttyS1,115200n81 ignore_loglevel root=/dev/nfs ip=dhcp";
 	};
+
+	reg_1p8v: regulator@0 {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-1.8V";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	reg_3p3v: regulator@1 {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-3.3V";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+		regulator-boot-on;
+	};
+
+	lan9220@20000000 {
+		compatible = "smsc,lan9220", "smsc,lan9115";
+		reg = <0x20000000 0x10000>;
+		phy-mode = "mii";
+		interrupt-parent = <&gpio0>;
+		interrupts = <1 1>;	/* active high */
+		reg-io-width = <4>;
+		smsc,irq-active-high;
+		smsc,irq-push-pull;
+		vddvario-supply = <&reg_1p8v>;
+		vdd33a-supply = <&reg_3p3v>;
+	};
 };
-- 
cgit 


From 3ae970a688f8f8a74d1b489b8646733a830c904b Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 1 Oct 2013 19:33:15 +0900
Subject: ARM: shmobile: Use KZM9D without reference for multiplatform

Change the multiplatform kconfig bits for KZM9D from
CONFIG_MACH_KZM9D_REFERENCE into CONFIG_MACH_KZM9D
to match the non-multiplatform case.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/Kconfig  | 10 ++--------
 arch/arm/mach-shmobile/Makefile |  4 ++++
 2 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index 6a684ff62124..c9c4f15483bd 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -22,16 +22,10 @@ config ARCH_EMEV2
 
 comment "SH-Mobile Board Type"
 
-config MACH_KZM9D_REFERENCE
-	bool "KZM9D board - Reference Device Tree Implementation"
+config MACH_KZM9D
+	bool "KZM9D board"
 	depends on ARCH_EMEV2
 	select REGULATOR_FIXED_VOLTAGE if REGULATOR
-	---help---
-	   Use reference implementation of KZM9D board support
-	   which makes a greater use of device tree at the expense
-	   of not supporting a number of devices.
-
-	   This is intended to aid developers
 
 comment "SH-Mobile System Configuration"
 endif
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index b3840ba1a445..b11466d4d944 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -55,6 +55,9 @@ obj-$(CONFIG_ARCH_R8A7740)	+= pm-r8a7740.o pm-rmobile.o
 obj-$(CONFIG_ARCH_R8A7779)	+= pm-r8a7779.o
 
 # Board objects
+ifdef CONFIG_ARCH_SHMOBILE_MULTI
+obj-$(CONFIG_MACH_KZM9D)	+= board-kzm9d-reference.o
+else
 obj-$(CONFIG_MACH_APE6EVM)	+= board-ape6evm.o
 obj-$(CONFIG_MACH_APE6EVM_REFERENCE)	+= board-ape6evm-reference.o
 obj-$(CONFIG_MACH_MACKEREL)	+= board-mackerel.o
@@ -72,6 +75,7 @@ obj-$(CONFIG_MACH_KZM9D)	+= board-kzm9d.o
 obj-$(CONFIG_MACH_KZM9D_REFERENCE)	+= board-kzm9d-reference.o
 obj-$(CONFIG_MACH_KZM9G)	+= board-kzm9g.o
 obj-$(CONFIG_MACH_KZM9G_REFERENCE)	+= board-kzm9g-reference.o
+endif
 
 # Framework support
 obj-$(CONFIG_SMP)		+= $(smp-y)
-- 
cgit 


From df8ee58d73ae8590bc4c9ddbe19211e4485f9d17 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 1 Oct 2013 19:33:24 +0900
Subject: ARM: shmobile: Remove non-multiplatform KZM9D reference support

Now when CCF is supported remove the legacy KZM9D reference
Kconfig bits CONFIG_MACH_KZM9D_REFERENCE for the non-multiplatform
case.

Starting from this commit KZM9D board support is always enabled
via CONFIG_MACH_KZM9D, and CONFIG_ARCH_MULTIPLATFORM is used
to select between board-kzm9d.c and board-kzm9d-reference.c

The file board-kzm9d-reference.c can no longer be used together
with the legacy sh-clk clock framework, instead CCF is used.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/Kconfig       | 12 ------------
 arch/arm/mach-shmobile/Makefile      |  1 -
 arch/arm/mach-shmobile/Makefile.boot |  1 -
 3 files changed, 14 deletions(-)

diff --git a/arch/arm/mach-shmobile/Kconfig b/arch/arm/mach-shmobile/Kconfig
index c9c4f15483bd..a4a4b75109b2 100644
--- a/arch/arm/mach-shmobile/Kconfig
+++ b/arch/arm/mach-shmobile/Kconfig
@@ -237,18 +237,6 @@ config MACH_KZM9D
 	select REGULATOR_FIXED_VOLTAGE if REGULATOR
 	select USE_OF
 
-config MACH_KZM9D_REFERENCE
-	bool "KZM9D board - Reference Device Tree Implementation"
-	depends on ARCH_EMEV2
-	select REGULATOR_FIXED_VOLTAGE if REGULATOR
-	select USE_OF
-	---help---
-	   Use reference implementation of KZM9D board support
-	   which makes a greater use of device tree at the expense
-	   of not supporting a number of devices.
-
-	   This is intended to aid developers
-
 config MACH_KZM9G
 	bool "KZM-A9-GT board"
 	depends on ARCH_SH73A0
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index b11466d4d944..51db2bcafabf 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -72,7 +72,6 @@ obj-$(CONFIG_MACH_ARMADILLO800EVA)	+= board-armadillo800eva.o
 obj-$(CONFIG_MACH_ARMADILLO800EVA_REFERENCE)	+= board-armadillo800eva-reference.o
 obj-$(CONFIG_MACH_KOELSCH)	+= board-koelsch.o
 obj-$(CONFIG_MACH_KZM9D)	+= board-kzm9d.o
-obj-$(CONFIG_MACH_KZM9D_REFERENCE)	+= board-kzm9d-reference.o
 obj-$(CONFIG_MACH_KZM9G)	+= board-kzm9g.o
 obj-$(CONFIG_MACH_KZM9G_REFERENCE)	+= board-kzm9g-reference.o
 endif
diff --git a/arch/arm/mach-shmobile/Makefile.boot b/arch/arm/mach-shmobile/Makefile.boot
index c690b500eb61..391d72a5536c 100644
--- a/arch/arm/mach-shmobile/Makefile.boot
+++ b/arch/arm/mach-shmobile/Makefile.boot
@@ -9,7 +9,6 @@ loadaddr-$(CONFIG_MACH_BOCKW_REFERENCE) += 0x60008000
 loadaddr-$(CONFIG_MACH_GENMAI) += 0x8008000
 loadaddr-$(CONFIG_MACH_KOELSCH) += 0x40008000
 loadaddr-$(CONFIG_MACH_KZM9D) += 0x40008000
-loadaddr-$(CONFIG_MACH_KZM9D_REFERENCE) += 0x40008000
 loadaddr-$(CONFIG_MACH_KZM9G) += 0x41008000
 loadaddr-$(CONFIG_MACH_KZM9G_REFERENCE) += 0x41008000
 loadaddr-$(CONFIG_MACH_LAGER) += 0x40008000
-- 
cgit 


From 91f6c56152c7d8ab874dbbf8146a6727d4dff426 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 1 Oct 2013 19:33:34 +0900
Subject: ARM: shmobile: Let KZM9D multiplatform boot with KZM9D DTB

Let the multiplatform KZM9D support boot with the
legacy DTS for KZM9D as well as the KZM9D reference DTS.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-kzm9d-reference.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-shmobile/board-kzm9d-reference.c b/arch/arm/mach-shmobile/board-kzm9d-reference.c
index 8f8bb2fab076..054d8d5c8fc1 100644
--- a/arch/arm/mach-shmobile/board-kzm9d-reference.c
+++ b/arch/arm/mach-shmobile/board-kzm9d-reference.c
@@ -33,6 +33,7 @@ static void __init kzm9d_add_standard_devices(void)
 }
 
 static const char *kzm9d_boards_compat_dt[] __initdata = {
+	"renesas,kzm9d",
 	"renesas,kzm9d-reference",
 	NULL,
 };
-- 
cgit 


From 3d888121512f3d70b46ff67d02b41baf474a3123 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 1 Oct 2013 19:33:43 +0900
Subject: ARM: shmobile: Remove KZM9D reference DTS

Now when the legacy DTS file emev2-kzm9d.dts can be
used with board-kzm9d.c and board-kzm9d-reference.c
proceed with removing emev-kzm9d-reference.dts.

Signed-off-by: Magnus Damm <damm@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/Makefile                  |  3 +-
 arch/arm/boot/dts/emev2-kzm9d-reference.dts | 57 -----------------------------
 2 files changed, 1 insertion(+), 59 deletions(-)
 delete mode 100644 arch/arm/boot/dts/emev2-kzm9d-reference.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 295824d8410b..a72a9f4555b2 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -195,7 +195,6 @@ dtb-$(CONFIG_ARCH_U8500) += ste-snowball.dtb \
 	ste-ccu9540.dtb
 dtb-$(CONFIG_ARCH_S3C24XX) += s3c2416-smdk2416.dtb
 dtb-$(CONFIG_ARCH_SHMOBILE) += emev2-kzm9d.dtb \
-	emev2-kzm9d-reference.dtb \
 	r7s72100-genmai.dtb \
 	r8a7740-armadillo800eva.dtb \
 	r8a7778-bockw.dtb \
@@ -211,7 +210,7 @@ dtb-$(CONFIG_ARCH_SHMOBILE) += emev2-kzm9d.dtb \
 	r8a73a4-ape6evm.dtb \
 	r8a73a4-ape6evm-reference.dtb \
 	sh7372-mackerel.dtb
-dtb-$(CONFIG_ARCH_SHMOBILE_MULTI) += emev2-kzm9d-reference.dtb
+dtb-$(CONFIG_ARCH_SHMOBILE_MULTI) += emev2-kzm9d.dtb
 dtb-$(CONFIG_ARCH_SOCFPGA) += socfpga_cyclone5.dtb \
 	socfpga_vt.dtb
 dtb-$(CONFIG_ARCH_SPEAR13XX) += spear1310-evb.dtb \
diff --git a/arch/arm/boot/dts/emev2-kzm9d-reference.dts b/arch/arm/boot/dts/emev2-kzm9d-reference.dts
deleted file mode 100644
index cceefda268b6..000000000000
--- a/arch/arm/boot/dts/emev2-kzm9d-reference.dts
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
- * Device Tree Source for the KZM9D board
- *
- * Copyright (C) 2013 Renesas Solutions Corp.
- *
- * This file is licensed under the terms of the GNU General Public License
- * version 2.  This program is licensed "as is" without any warranty of any
- * kind, whether express or implied.
- */
-/dts-v1/;
-
-/include/ "emev2.dtsi"
-
-/ {
-	model = "EMEV2 KZM9D Board";
-	compatible = "renesas,kzm9d-reference", "renesas,emev2";
-
-	memory {
-		device_type = "memory";
-		reg = <0x40000000 0x8000000>;
-	};
-
-	chosen {
-		bootargs = "console=ttyS1,115200n81 ignore_loglevel root=/dev/nfs ip=dhcp";
-	};
-
-	reg_1p8v: regulator@0 {
-		compatible = "regulator-fixed";
-		regulator-name = "fixed-1.8V";
-		regulator-min-microvolt = <1800000>;
-		regulator-max-microvolt = <1800000>;
-		regulator-always-on;
-		regulator-boot-on;
-	};
-
-	reg_3p3v: regulator@1 {
-		compatible = "regulator-fixed";
-		regulator-name = "fixed-3.3V";
-		regulator-min-microvolt = <3300000>;
-		regulator-max-microvolt = <3300000>;
-		regulator-always-on;
-		regulator-boot-on;
-	};
-
-	lan9220@20000000 {
-		compatible = "smsc,lan9220", "smsc,lan9115";
-		reg = <0x20000000 0x10000>;
-		phy-mode = "mii";
-		interrupt-parent = <&gpio0>;
-		interrupts = <1 1>;	/* active high */
-		reg-io-width = <4>;
-		smsc,irq-active-high;
-		smsc,irq-push-pull;
-		vddvario-supply = <&reg_1p8v>;
-		vdd33a-supply = <&reg_3p3v>;
-	};
-};
-- 
cgit 


From b6d5a1b1c3476225e897a2f706c0e7eca7b05984 Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 1 Oct 2013 17:13:26 +0900
Subject: ARM: shmobile: Use SMP on Koelsch

Enable r8a7791 SMP support code on the Koelsch board.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-koelsch.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-shmobile/board-koelsch.c b/arch/arm/mach-shmobile/board-koelsch.c
index ea5846e2e88c..ace1711a6cd8 100644
--- a/arch/arm/mach-shmobile/board-koelsch.c
+++ b/arch/arm/mach-shmobile/board-koelsch.c
@@ -39,6 +39,7 @@ static const char * const koelsch_boards_compat_dt[] __initconst = {
 };
 
 DT_MACHINE_START(KOELSCH_DT, "koelsch")
+	.smp		= smp_ops(r8a7791_smp_ops),
 	.init_early	= r8a7791_init_early,
 	.init_machine	= koelsch_add_standard_devices,
 	.init_time	= rcar_gen2_timer_init,
-- 
cgit 


From 90357fcbf2fcb9e50899fd3b2a91a6dc3cfe5ea5 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Wed, 2 Oct 2013 01:33:36 -0700
Subject: ARM: shmobile: bockw: add SMSC support on reference

This patch enables INTC IRQ, and SMSC IRQ.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-bockw-reference.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm/mach-shmobile/board-bockw-reference.c b/arch/arm/mach-shmobile/board-bockw-reference.c
index 1a7c893e1a52..ae88fdad4b3a 100644
--- a/arch/arm/mach-shmobile/board-bockw-reference.c
+++ b/arch/arm/mach-shmobile/board-bockw-reference.c
@@ -36,15 +36,35 @@ static const struct pinctrl_map bockw_pinctrl_map[] = {
 				  "scif0_ctrl", "scif0"),
 };
 
+#define FPGA	0x18200000
+#define IRQ0MR	0x30
+#define COMCTLR	0x101c
 static void __init bockw_init(void)
 {
+	static void __iomem *fpga;
+
 	r8a7778_clock_init();
+	r8a7778_init_irq_extpin_dt(1);
 
 	pinctrl_register_mappings(bockw_pinctrl_map,
 				  ARRAY_SIZE(bockw_pinctrl_map));
 	r8a7778_pinmux_init();
 	r8a7778_add_dt_devices();
 
+	fpga = ioremap_nocache(FPGA, SZ_1M);
+	if (fpga) {
+		/*
+		 * CAUTION
+		 *
+		 * IRQ0/1 is cascaded interrupt from FPGA.
+		 * it should be cared in the future
+		 * Now, it is assuming IRQ0 was used only from SMSC.
+		 */
+		u16 val = ioread16(fpga + IRQ0MR);
+		val &= ~(1 << 4); /* enable SMSC911x */
+		iowrite16(val, fpga + IRQ0MR);
+	}
+
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }
 
-- 
cgit 


From 7d4bde88e1135c4a3106b79650d3b85335f35717 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Wed, 2 Oct 2013 01:39:48 -0700
Subject: ARM: shmobile: marzen: enable INTC IRQ

This patch adds missing INTC IRQ settings
which is required from SMSC.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/mach-shmobile/board-marzen-reference.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-shmobile/board-marzen-reference.c b/arch/arm/mach-shmobile/board-marzen-reference.c
index 3f4250a2d4eb..2773936bf7dc 100644
--- a/arch/arm/mach-shmobile/board-marzen-reference.c
+++ b/arch/arm/mach-shmobile/board-marzen-reference.c
@@ -28,6 +28,7 @@
 static void __init marzen_init(void)
 {
 	r8a7779_add_standard_devices_dt();
+	r8a7779_init_irq_extpin_dt(1); /* IRQ1 as individual interrupt */
 }
 
 static const char *marzen_boards_compat_dt[] __initdata = {
-- 
cgit 


From b9e0d40c0d83805bc6feb86d602e73f2cdcb17f9 Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Wed, 25 Sep 2013 21:18:13 -0400
Subject: clk: keystone: add Keystone PLL clock driver

Add the driver for the PLL IPs found on Keystone 2 devices. The PLL
IP typically has a multiplier, a divider and a post-divider. The PLL IPs like
ARMPLL, DDRPLL and PAPLL are controlled by the memory mapped register where
as the Main PLL is controlled by a PLL controller and memory map registers.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
 .../devicetree/bindings/clock/keystone-pll.txt     |  84 ++++++
 drivers/clk/keystone/pll.c                         | 305 +++++++++++++++++++++
 2 files changed, 389 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/keystone-pll.txt
 create mode 100644 drivers/clk/keystone/pll.c

diff --git a/Documentation/devicetree/bindings/clock/keystone-pll.txt b/Documentation/devicetree/bindings/clock/keystone-pll.txt
new file mode 100644
index 000000000000..12bd72605a31
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/keystone-pll.txt
@@ -0,0 +1,84 @@
+Status: Unstable - ABI compatibility may be broken in the future
+
+Binding for keystone PLLs. The main PLL IP typically has a multiplier,
+a divider and a post divider. The additional PLL IPs like ARMPLL, DDRPLL
+and PAPLL are controlled by the memory mapped register where as the Main
+PLL is controlled by a PLL controller registers along with memory mapped
+registers.
+
+This binding uses the common clock binding[1].
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+Required properties:
+- #clock-cells : from common clock binding; shall be set to 0.
+- compatible : shall be "ti,keystone,main-pll-clock" or "ti,keystone,pll-clock"
+- clocks : parent clock phandle
+- reg - pll control0 and pll multipler registers
+- reg-names : control and multiplier. The multiplier is applicable only for
+		main pll clock
+- fixed-postdiv : fixed post divider value
+
+Example:
+	mainpllclk: mainpllclk@2310110 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,main-pll-clock";
+		clocks = <&refclkmain>;
+		reg = <0x02620350 4>, <0x02310110 4>;
+		reg-names = "control", "multiplier";
+		fixed-postdiv = <2>;
+	};
+
+	papllclk: papllclk@2620358 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,pll-clock";
+		clocks = <&refclkmain>;
+		clock-output-names = "pa-pll-clk";
+		reg = <0x02620358 4>;
+		reg-names = "control";
+		fixed-postdiv = <6>;
+	};
+
+Required properties:
+- #clock-cells : from common clock binding; shall be set to 0.
+- compatible : shall be "ti,keystone,pll-mux-clock"
+- clocks : link phandles of parent clocks
+- reg - pll mux register
+- bit-shift : number of bits to shift the bit-mask
+- bit-mask : arbitrary bitmask for programming the mux
+
+Optional properties:
+- clock-output-names : From common clock binding.
+
+Example:
+	mainmuxclk: mainmuxclk@2310108 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,pll-mux-clock";
+		clocks = <&mainpllclk>, <&refclkmain>;
+		reg = <0x02310108 4>;
+		bit-shift = <23>;
+		bit-mask = <1>;
+		clock-output-names = "mainmuxclk";
+	};
+
+Required properties:
+- #clock-cells : from common clock binding; shall be set to 0.
+- compatible : shall be "ti,keystone,pll-divider-clock"
+- clocks : parent clock phandle
+- reg - pll mux register
+- bit-shift : number of bits to shift the bit-mask
+- bit-mask : arbitrary bitmask for programming the divider
+
+Optional properties:
+- clock-output-names : From common clock binding.
+
+Example:
+	gemtraceclk: gemtraceclk@2310120 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,pll-divider-clock";
+		clocks = <&mainmuxclk>;
+		reg = <0x02310120 4>;
+		bit-shift = <0>;
+		bit-mask = <8>;
+		clock-output-names = "gemtraceclk";
+	};
diff --git a/drivers/clk/keystone/pll.c b/drivers/clk/keystone/pll.c
new file mode 100644
index 000000000000..47a1bd9f1726
--- /dev/null
+++ b/drivers/clk/keystone/pll.c
@@ -0,0 +1,305 @@
+/*
+ * PLL clock driver for Keystone devices
+ *
+ * Copyright (C) 2013 Texas Instruments Inc.
+ *	Murali Karicheri <m-karicheri2@ti.com>
+ *	Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/of_address.h>
+#include <linux/of.h>
+#include <linux/module.h>
+
+#define PLLM_LOW_MASK		0x3f
+#define PLLM_HIGH_MASK		0x7ffc0
+#define MAIN_PLLM_HIGH_MASK	0x7f000
+#define PLLM_HIGH_SHIFT		6
+#define PLLD_MASK		0x3f
+
+/**
+ * struct clk_pll_data - pll data structure
+ * @has_pllctrl: If set to non zero, lower 6 bits of multiplier is in pllm
+ *	register of pll controller, else it is in the pll_ctrl0((bit 11-6)
+ * @phy_pllm: Physical address of PLLM in pll controller. Used when
+ *	has_pllctrl is non zero.
+ * @phy_pll_ctl0: Physical address of PLL ctrl0. This could be that of
+ *	Main PLL or any other PLLs in the device such as ARM PLL, DDR PLL
+ *	or PA PLL available on keystone2. These PLLs are controlled by
+ *	this register. Main PLL is controlled by a PLL controller.
+ * @pllm: PLL register map address
+ * @pll_ctl0: PLL controller map address
+ * @pllm_lower_mask: multiplier lower mask
+ * @pllm_upper_mask: multiplier upper mask
+ * @pllm_upper_shift: multiplier upper shift
+ * @plld_mask: divider mask
+ * @postdiv: Post divider
+ */
+struct clk_pll_data {
+	bool has_pllctrl;
+	u32 phy_pllm;
+	u32 phy_pll_ctl0;
+	void __iomem *pllm;
+	void __iomem *pll_ctl0;
+	u32 pllm_lower_mask;
+	u32 pllm_upper_mask;
+	u32 pllm_upper_shift;
+	u32 plld_mask;
+	u32 postdiv;
+};
+
+/**
+ * struct clk_pll - Main pll clock
+ * @hw: clk_hw for the pll
+ * @pll_data: PLL driver specific data
+ */
+struct clk_pll {
+	struct clk_hw hw;
+	struct clk_pll_data *pll_data;
+};
+
+#define to_clk_pll(_hw) container_of(_hw, struct clk_pll, hw)
+
+static unsigned long clk_pllclk_recalc(struct clk_hw *hw,
+					unsigned long parent_rate)
+{
+	struct clk_pll *pll = to_clk_pll(hw);
+	struct clk_pll_data *pll_data = pll->pll_data;
+	unsigned long rate = parent_rate;
+	u32  mult = 0, prediv, postdiv, val;
+
+	/*
+	 * get bits 0-5 of multiplier from pllctrl PLLM register
+	 * if has_pllctrl is non zero
+	 */
+	if (pll_data->has_pllctrl) {
+		val = readl(pll_data->pllm);
+		mult = (val & pll_data->pllm_lower_mask);
+	}
+
+	/* bit6-12 of PLLM is in Main PLL control register */
+	val = readl(pll_data->pll_ctl0);
+	mult |= ((val & pll_data->pllm_upper_mask)
+			>> pll_data->pllm_upper_shift);
+	prediv = (val & pll_data->plld_mask);
+	postdiv = pll_data->postdiv;
+
+	rate /= (prediv + 1);
+	rate = (rate * (mult + 1));
+	rate /= postdiv;
+
+	return rate;
+}
+
+static const struct clk_ops clk_pll_ops = {
+	.recalc_rate = clk_pllclk_recalc,
+};
+
+static struct clk *clk_register_pll(struct device *dev,
+			const char *name,
+			const char *parent_name,
+			struct clk_pll_data *pll_data)
+{
+	struct clk_init_data init;
+	struct clk_pll *pll;
+	struct clk *clk;
+
+	pll = kzalloc(sizeof(*pll), GFP_KERNEL);
+	if (!pll)
+		return ERR_PTR(-ENOMEM);
+
+	init.name = name;
+	init.ops = &clk_pll_ops;
+	init.flags = 0;
+	init.parent_names = (parent_name ? &parent_name : NULL);
+	init.num_parents = (parent_name ? 1 : 0);
+
+	pll->pll_data	= pll_data;
+	pll->hw.init = &init;
+
+	clk = clk_register(NULL, &pll->hw);
+	if (IS_ERR(clk))
+		goto out;
+
+	return clk;
+out:
+	kfree(pll);
+	return NULL;
+}
+
+/**
+ * _of_clk_init - PLL initialisation via DT
+ * @node: device tree node for this clock
+ * @pllctrl: If true, lower 6 bits of multiplier is in pllm register of
+ *		pll controller, else it is in the control regsiter0(bit 11-6)
+ */
+static void __init _of_pll_clk_init(struct device_node *node, bool pllctrl)
+{
+	struct clk_pll_data *pll_data;
+	const char *parent_name;
+	struct clk *clk;
+	int i;
+
+	pll_data = kzalloc(sizeof(*pll_data), GFP_KERNEL);
+	if (!pll_data) {
+		pr_err("%s: Out of memory\n", __func__);
+		return;
+	}
+
+	parent_name = of_clk_get_parent_name(node, 0);
+	if (of_property_read_u32(node, "fixed-postdiv",	&pll_data->postdiv))
+		goto out;
+
+	i = of_property_match_string(node, "reg-names", "control");
+	pll_data->pll_ctl0 = of_iomap(node, i);
+	if (!pll_data->pll_ctl0) {
+		pr_err("%s: ioremap failed\n", __func__);
+		goto out;
+	}
+
+	pll_data->pllm_lower_mask = PLLM_LOW_MASK;
+	pll_data->pllm_upper_shift = PLLM_HIGH_SHIFT;
+	pll_data->plld_mask = PLLD_MASK;
+	pll_data->has_pllctrl = pllctrl;
+	if (!pll_data->has_pllctrl) {
+		pll_data->pllm_upper_mask = PLLM_HIGH_MASK;
+	} else {
+		pll_data->pllm_upper_mask = MAIN_PLLM_HIGH_MASK;
+		i = of_property_match_string(node, "reg-names", "multiplier");
+		pll_data->pllm = of_iomap(node, i);
+		if (!pll_data->pllm) {
+			iounmap(pll_data->pll_ctl0);
+			goto out;
+		}
+	}
+
+	clk = clk_register_pll(NULL, node->name, parent_name, pll_data);
+	if (clk) {
+		of_clk_add_provider(node, of_clk_src_simple_get, clk);
+		return;
+	}
+
+out:
+	pr_err("%s: error initializing pll %s\n", __func__, node->name);
+	kfree(pll_data);
+}
+
+/**
+ * of_keystone_pll_clk_init - PLL initialisation DT wrapper
+ * @node: device tree node for this clock
+ */
+static void __init of_keystone_pll_clk_init(struct device_node *node)
+{
+	_of_pll_clk_init(node, false);
+}
+CLK_OF_DECLARE(keystone_pll_clock, "ti,keystone,pll-clock",
+					of_keystone_pll_clk_init);
+
+/**
+ * of_keystone_pll_main_clk_init - Main PLL initialisation DT wrapper
+ * @node: device tree node for this clock
+ */
+static void __init of_keystone_main_pll_clk_init(struct device_node *node)
+{
+	_of_pll_clk_init(node, true);
+}
+CLK_OF_DECLARE(keystone_main_pll_clock, "ti,keystone,main-pll-clock",
+						of_keystone_main_pll_clk_init);
+
+/**
+ * of_pll_div_clk_init - PLL divider setup function
+ * @node: device tree node for this clock
+ */
+static void __init of_pll_div_clk_init(struct device_node *node)
+{
+	const char *parent_name;
+	void __iomem *reg;
+	u32 shift, mask;
+	struct clk *clk;
+	const char *clk_name = node->name;
+
+	of_property_read_string(node, "clock-output-names", &clk_name);
+	reg = of_iomap(node, 0);
+	if (!reg) {
+		pr_err("%s: ioremap failed\n", __func__);
+		return;
+	}
+
+	parent_name = of_clk_get_parent_name(node, 0);
+	if (!parent_name) {
+		pr_err("%s: missing parent clock\n", __func__);
+		return;
+	}
+
+	if (of_property_read_u32(node, "bit-shift", &shift)) {
+		pr_err("%s: missing 'shift' property\n", __func__);
+		return;
+	}
+
+	if (of_property_read_u32(node, "bit-mask", &mask)) {
+		pr_err("%s: missing 'bit-mask' property\n", __func__);
+		return;
+	}
+
+	clk = clk_register_divider(NULL, clk_name, parent_name, 0, reg, shift,
+				 mask, 0, NULL);
+	if (clk)
+		of_clk_add_provider(node, of_clk_src_simple_get, clk);
+	else
+		pr_err("%s: error registering divider %s\n", __func__, clk_name);
+}
+CLK_OF_DECLARE(pll_divider_clock, "ti,keystone,pll-divider-clock", of_pll_div_clk_init);
+
+/**
+ * of_pll_mux_clk_init - PLL mux setup function
+ * @node: device tree node for this clock
+ */
+static void __init of_pll_mux_clk_init(struct device_node *node)
+{
+	void __iomem *reg;
+	u32 shift, mask;
+	struct clk *clk;
+	const char *parents[2];
+	const char *clk_name = node->name;
+
+	of_property_read_string(node, "clock-output-names", &clk_name);
+	reg = of_iomap(node, 0);
+	if (!reg) {
+		pr_err("%s: ioremap failed\n", __func__);
+		return;
+	}
+
+	parents[0] = of_clk_get_parent_name(node, 0);
+	parents[1] = of_clk_get_parent_name(node, 1);
+	if (!parents[0] || !parents[1]) {
+		pr_err("%s: missing parent clocks\n", __func__);
+		return;
+	}
+
+	if (of_property_read_u32(node, "bit-shift", &shift)) {
+		pr_err("%s: missing 'shift' property\n", __func__);
+		return;
+	}
+
+	if (of_property_read_u32(node, "bit-mask", &mask)) {
+		pr_err("%s: missing 'bit-mask' property\n", __func__);
+		return;
+	}
+
+	clk = clk_register_mux(NULL, clk_name, (const char **)&parents,
+				ARRAY_SIZE(parents) , 0, reg, shift, mask,
+				0, NULL);
+	if (clk)
+		of_clk_add_provider(node, of_clk_src_simple_get, clk);
+	else
+		pr_err("%s: error registering mux %s\n", __func__, clk_name);
+}
+CLK_OF_DECLARE(pll_mux_clock, "ti,keystone,pll-mux-clock", of_pll_mux_clk_init);
-- 
cgit 


From 7affe5685c962ed0bc0fadf307400484b2276c89 Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Wed, 25 Sep 2013 21:18:14 -0400
Subject: clk: keystone: Add gate control clock driver

Add the driver for the clock gate control which uses PSC (Power Sleep
Controller) IP on Keystone 2 based SOCs. It is responsible for enabling and
disabling of the clocks for different IPs present in the SoC.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
 .../devicetree/bindings/clock/keystone-gate.txt    |  29 +++
 drivers/clk/keystone/gate.c                        | 264 +++++++++++++++++++++
 2 files changed, 293 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/keystone-gate.txt
 create mode 100644 drivers/clk/keystone/gate.c

diff --git a/Documentation/devicetree/bindings/clock/keystone-gate.txt b/Documentation/devicetree/bindings/clock/keystone-gate.txt
new file mode 100644
index 000000000000..c5aa187026e3
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/keystone-gate.txt
@@ -0,0 +1,29 @@
+Status: Unstable - ABI compatibility may be broken in the future
+
+Binding for Keystone gate control driver which uses PSC controller IP.
+
+This binding uses the common clock binding[1].
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+Required properties:
+- compatible : shall be "ti,keystone,psc-clock".
+- #clock-cells : from common clock binding; shall be set to 0.
+- clocks : parent clock phandle
+- reg :	psc control and domain address address space
+- reg-names : psc control and domain registers
+- domain-id : psc domain id needed to check the transition state register
+
+Optional properties:
+- clock-output-names : From common clock binding to override the
+			default output clock name
+Example:
+	clkusb: clkusb {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk16>;
+		clock-output-names = "usb";
+		reg = <0x02350008 0xb00>, <0x02350000 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <0>;
+	};
diff --git a/drivers/clk/keystone/gate.c b/drivers/clk/keystone/gate.c
new file mode 100644
index 000000000000..1f333bcfc22e
--- /dev/null
+++ b/drivers/clk/keystone/gate.c
@@ -0,0 +1,264 @@
+/*
+ * Clock driver for Keystone 2 based devices
+ *
+ * Copyright (C) 2013 Texas Instruments.
+ *	Murali Karicheri <m-karicheri2@ti.com>
+ *	Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#include <linux/clk.h>
+#include <linux/clk-provider.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/of_address.h>
+#include <linux/of.h>
+#include <linux/module.h>
+
+/* PSC register offsets */
+#define PTCMD			0x120
+#define PTSTAT			0x128
+#define PDSTAT			0x200
+#define PDCTL			0x300
+#define MDSTAT			0x800
+#define MDCTL			0xa00
+
+/* PSC module states */
+#define PSC_STATE_SWRSTDISABLE	0
+#define PSC_STATE_SYNCRST	1
+#define PSC_STATE_DISABLE	2
+#define PSC_STATE_ENABLE	3
+
+#define MDSTAT_STATE_MASK	0x3f
+#define MDSTAT_MCKOUT		BIT(12)
+#define PDSTAT_STATE_MASK	0x1f
+#define MDCTL_FORCE		BIT(31)
+#define MDCTL_LRESET		BIT(8)
+#define PDCTL_NEXT		BIT(0)
+
+/* Maximum timeout to bail out state transition for module */
+#define STATE_TRANS_MAX_COUNT	0xffff
+
+static void __iomem *domain_transition_base;
+
+/**
+ * struct clk_psc_data - PSC data
+ * @control_base: Base address for a PSC control
+ * @domain_base: Base address for a PSC domain
+ * @domain_id: PSC domain id number
+ */
+struct clk_psc_data {
+	void __iomem *control_base;
+	void __iomem *domain_base;
+	u32 domain_id;
+};
+
+/**
+ * struct clk_psc - PSC clock structure
+ * @hw: clk_hw for the psc
+ * @psc_data: PSC driver specific data
+ * @lock: Spinlock used by the driver
+ */
+struct clk_psc {
+	struct clk_hw hw;
+	struct clk_psc_data *psc_data;
+	spinlock_t *lock;
+};
+
+static DEFINE_SPINLOCK(psc_lock);
+
+#define to_clk_psc(_hw) container_of(_hw, struct clk_psc, hw)
+
+static void psc_config(void __iomem *control_base, void __iomem *domain_base,
+						u32 next_state, u32 domain_id)
+{
+	u32 ptcmd, pdstat, pdctl, mdstat, mdctl, ptstat;
+	u32 count = STATE_TRANS_MAX_COUNT;
+
+	mdctl = readl(control_base + MDCTL);
+	mdctl &= ~MDSTAT_STATE_MASK;
+	mdctl |= next_state;
+	/* For disable, we always put the module in local reset */
+	if (next_state == PSC_STATE_DISABLE)
+		mdctl &= ~MDCTL_LRESET;
+	writel(mdctl, control_base + MDCTL);
+
+	pdstat = readl(domain_base + PDSTAT);
+	if (!(pdstat & PDSTAT_STATE_MASK)) {
+		pdctl = readl(domain_base + PDCTL);
+		pdctl |= PDCTL_NEXT;
+		writel(pdctl, domain_base + PDCTL);
+	}
+
+	ptcmd = 1 << domain_id;
+	writel(ptcmd, domain_transition_base + PTCMD);
+	do {
+		ptstat = readl(domain_transition_base + PTSTAT);
+	} while (((ptstat >> domain_id) & 1) && count--);
+
+	count = STATE_TRANS_MAX_COUNT;
+	do {
+		mdstat = readl(control_base + MDSTAT);
+	} while (!((mdstat & MDSTAT_STATE_MASK) == next_state) && count--);
+}
+
+static int keystone_clk_is_enabled(struct clk_hw *hw)
+{
+	struct clk_psc *psc = to_clk_psc(hw);
+	struct clk_psc_data *data = psc->psc_data;
+	u32 mdstat = readl(data->control_base + MDSTAT);
+
+	return (mdstat & MDSTAT_MCKOUT) ? 1 : 0;
+}
+
+static int keystone_clk_enable(struct clk_hw *hw)
+{
+	struct clk_psc *psc = to_clk_psc(hw);
+	struct clk_psc_data *data = psc->psc_data;
+	unsigned long flags = 0;
+
+	if (psc->lock)
+		spin_lock_irqsave(psc->lock, flags);
+
+	psc_config(data->control_base, data->domain_base,
+				PSC_STATE_ENABLE, data->domain_id);
+
+	if (psc->lock)
+		spin_unlock_irqrestore(psc->lock, flags);
+
+	return 0;
+}
+
+static void keystone_clk_disable(struct clk_hw *hw)
+{
+	struct clk_psc *psc = to_clk_psc(hw);
+	struct clk_psc_data *data = psc->psc_data;
+	unsigned long flags = 0;
+
+	if (psc->lock)
+		spin_lock_irqsave(psc->lock, flags);
+
+	psc_config(data->control_base, data->domain_base,
+				PSC_STATE_DISABLE, data->domain_id);
+
+	if (psc->lock)
+		spin_unlock_irqrestore(psc->lock, flags);
+}
+
+static const struct clk_ops clk_psc_ops = {
+	.enable = keystone_clk_enable,
+	.disable = keystone_clk_disable,
+	.is_enabled = keystone_clk_is_enabled,
+};
+
+/**
+ * clk_register_psc - register psc clock
+ * @dev: device that is registering this clock
+ * @name: name of this clock
+ * @parent_name: name of clock's parent
+ * @psc_data: platform data to configure this clock
+ * @lock: spinlock used by this clock
+ */
+static struct clk *clk_register_psc(struct device *dev,
+			const char *name,
+			const char *parent_name,
+			struct clk_psc_data *psc_data,
+			spinlock_t *lock)
+{
+	struct clk_init_data init;
+	struct clk_psc *psc;
+	struct clk *clk;
+
+	psc = kzalloc(sizeof(*psc), GFP_KERNEL);
+	if (!psc)
+		return ERR_PTR(-ENOMEM);
+
+	init.name = name;
+	init.ops = &clk_psc_ops;
+	init.parent_names = (parent_name ? &parent_name : NULL);
+	init.num_parents = (parent_name ? 1 : 0);
+
+	psc->psc_data = psc_data;
+	psc->lock = lock;
+	psc->hw.init = &init;
+
+	clk = clk_register(NULL, &psc->hw);
+	if (IS_ERR(clk))
+		kfree(psc);
+
+	return clk;
+}
+
+/**
+ * of_psc_clk_init - initialize psc clock through DT
+ * @node: device tree node for this clock
+ * @lock: spinlock used by this clock
+ */
+static void __init of_psc_clk_init(struct device_node *node, spinlock_t *lock)
+{
+	const char *clk_name = node->name;
+	const char *parent_name;
+	struct clk_psc_data *data;
+	struct clk *clk;
+	int i;
+
+	data = kzalloc(sizeof(*data), GFP_KERNEL);
+	if (!data) {
+		pr_err("%s: Out of memory\n", __func__);
+		return;
+	}
+
+	i = of_property_match_string(node, "reg-names", "control");
+	data->control_base = of_iomap(node, i);
+	if (!data->control_base) {
+		pr_err("%s: control ioremap failed\n", __func__);
+		goto out;
+	}
+
+	i = of_property_match_string(node, "reg-names", "domain");
+	data->domain_base = of_iomap(node, i);
+	if (!data->domain_base) {
+		pr_err("%s: domain ioremap failed\n", __func__);
+		iounmap(data->control_base);
+		goto out;
+	}
+
+	of_property_read_u32(node, "domain-id", &data->domain_id);
+
+	/* Domain transition registers at fixed address space of domain_id 0 */
+	if (!domain_transition_base && !data->domain_id)
+		domain_transition_base = data->domain_base;
+
+	of_property_read_string(node, "clock-output-names", &clk_name);
+	parent_name = of_clk_get_parent_name(node, 0);
+	if (!parent_name) {
+		pr_err("%s: Parent clock not found\n", __func__);
+		goto out;
+	}
+
+	clk = clk_register_psc(NULL, clk_name, parent_name, data, lock);
+	if (clk) {
+		of_clk_add_provider(node, of_clk_src_simple_get, clk);
+		return;
+	}
+
+	pr_err("%s: error registering clk %s\n", __func__, node->name);
+out:
+	kfree(data);
+	return;
+}
+
+/**
+ * of_keystone_psc_clk_init - initialize psc clock through DT
+ * @node: device tree node for this clock
+ */
+static void __init of_keystone_psc_clk_init(struct device_node *node)
+{
+	of_psc_clk_init(node, &psc_lock);
+}
+CLK_OF_DECLARE(keystone_gate_clk, "ti,keystone,psc-clock",
+					of_keystone_psc_clk_init);
-- 
cgit 


From 6cfc229d6f967041b5e1ee56a5bb87a500f31311 Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Wed, 25 Sep 2013 21:18:15 -0400
Subject: clk: keystone: Build Keystone clock drivers

Now build the keystone common clock drivers. The build is made
conditional based on COMMON_CLK_KEYSTONE

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
 drivers/clk/Kconfig           | 7 +++++++
 drivers/clk/Makefile          | 1 +
 drivers/clk/keystone/Makefile | 1 +
 3 files changed, 9 insertions(+)
 create mode 100644 drivers/clk/keystone/Makefile

diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index dd37f91289d2..5c51115081b3 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -100,6 +100,13 @@ config COMMON_CLK_XGENE
 	---help---
 	  Sypport for the APM X-Gene SoC reference, PLL, and device clocks.
 
+config COMMON_CLK_KEYSTONE
+	tristate "Clock drivers for Keystone based SOCs"
+	depends on ARCH_KEYSTONE && OF
+	---help---
+          Supports clock drivers for Keystone based SOCs. These SOCs have local
+	  a power sleep control module that gate the clock to the IPs and PLLs.
+
 endmenu
 
 source "drivers/clk/mvebu/Kconfig"
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 270f3fd2fbc0..df33820b45ec 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -33,6 +33,7 @@ obj-$(CONFIG_ARCH_ZYNQ)		+= zynq/
 obj-$(CONFIG_ARCH_TEGRA)	+= tegra/
 obj-$(CONFIG_PLAT_SAMSUNG)	+= samsung/
 obj-$(CONFIG_COMMON_CLK_XGENE)  += clk-xgene.o
+obj-$(CONFIG_COMMON_CLK_KEYSTONE)	+= keystone/
 
 obj-$(CONFIG_X86)		+= x86/
 
diff --git a/drivers/clk/keystone/Makefile b/drivers/clk/keystone/Makefile
new file mode 100644
index 000000000000..0477cf63f132
--- /dev/null
+++ b/drivers/clk/keystone/Makefile
@@ -0,0 +1 @@
+obj-y			+= pll.o gate.o
-- 
cgit 


From ccaaca25919a2cdeccd8fdce5f546e3ed7f6a9e9 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Tue, 8 Oct 2013 10:19:28 +0900
Subject: f2fs: fix writing incorrect orphan blocks

Previously, there was a erroneous scenario like below.
thread 1:                       thread 2:
 f2fs_unlink
  - acquire_orphan_inode
    : sbi->n_orphans++           write_checkpoint
                                 - block_operations
                                  : f2fs_lock_all
                                 - do_checkpoint
                                  : write orphan blocks with sbi->n_orphans
                                 - unblock_operations
  - f2fs_lock_op
  - release_orphan_inode
  - f2fs_unlock_op

During the checkpoint by thread 2, f2fs stores a wrong orphan block according
to the wrong sbi->n_orphans.
To avoid this, simply we should make cover acquire_orphan_inode too with
f2fs_lock_op.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/namei.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index 29f73fdf958e..575adac17f8b 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -228,14 +228,14 @@ static int f2fs_unlink(struct inode *dir, struct dentry *dentry)
 	if (!de)
 		goto fail;
 
+	f2fs_lock_op(sbi);
 	err = acquire_orphan_inode(sbi);
 	if (err) {
+		f2fs_unlock_op(sbi);
 		kunmap(page);
 		f2fs_put_page(page, 0);
 		goto fail;
 	}
-
-	f2fs_lock_op(sbi);
 	f2fs_delete_entry(de, page, inode);
 	f2fs_unlock_op(sbi);
 
-- 
cgit 


From 73c79afa61cdee2553461ee714bb4716372bdd55 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Thu, 3 Oct 2013 18:20:19 -0700
Subject: ARM: shmobile: bockw: fixup ether node naming

According to the ePAPR spec,
the node name should be "ethernet", not "lan0".

Reported-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
 arch/arm/boot/dts/r8a7778-bockw-reference.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/r8a7778-bockw-reference.dts b/arch/arm/boot/dts/r8a7778-bockw-reference.dts
index 4425fd2e09f4..969e386e852c 100644
--- a/arch/arm/boot/dts/r8a7778-bockw-reference.dts
+++ b/arch/arm/boot/dts/r8a7778-bockw-reference.dts
@@ -39,7 +39,7 @@
 		regulator-always-on;
 	};
 
-	lan0@18300000 {
+	ethernet@18300000 {
 		compatible = "smsc,lan9220", "smsc,lan9115";
 		reg = <0x18300000 0x1000>;
 
-- 
cgit 


From 038d3f882926bf49562e5f119957fd81015a9390 Mon Sep 17 00:00:00 2001
From: Valentina Manea <valentina.manea.m@gmail.com>
Date: Mon, 7 Oct 2013 23:12:14 +0300
Subject: Staging: crystalhd: Fix sparse warnings regarding static functions

This fixes the following sparse warnings:
* drivers/staging/crystalhd/crystalhd_lnx.c:78:29: warning:
symbol 'chd_dec_alloc_iodata' was not declared. Should it be static?
* drivers/staging/crystalhd/crystalhd_lnx.c:99:6: warning:
symbol 'chd_dec_free_iodata' was not declared. Should it be static?
* drivers/staging/crystalhd/crystalhd_lnx.c:630:5: warning:
symbol 'chd_dec_pci_suspend' was not declared. Should it be static?
* drivers/staging/crystalhd/crystalhd_lnx.c:664:5: warning:
symbol 'chd_dec_pci_resume' was not declared. Should it be static?

Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/crystalhd/crystalhd_lnx.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/crystalhd/crystalhd_lnx.c b/drivers/staging/crystalhd/crystalhd_lnx.c
index b17fbf8181cf..a874a2943575 100644
--- a/drivers/staging/crystalhd/crystalhd_lnx.c
+++ b/drivers/staging/crystalhd/crystalhd_lnx.c
@@ -75,8 +75,9 @@ static int chd_dec_disable_int(struct crystalhd_adp *adp)
 	return 0;
 }
 
-struct crystalhd_ioctl_data *chd_dec_alloc_iodata(struct crystalhd_adp *adp,
-					 bool isr)
+static struct
+crystalhd_ioctl_data *chd_dec_alloc_iodata(struct crystalhd_adp *adp,
+					   bool isr)
 {
 	unsigned long flags = 0;
 	struct crystalhd_ioctl_data *temp;
@@ -96,8 +97,8 @@ struct crystalhd_ioctl_data *chd_dec_alloc_iodata(struct crystalhd_adp *adp,
 	return temp;
 }
 
-void chd_dec_free_iodata(struct crystalhd_adp *adp,
-			 struct crystalhd_ioctl_data *iodata, bool isr)
+static void chd_dec_free_iodata(struct crystalhd_adp *adp,
+				struct crystalhd_ioctl_data *iodata, bool isr)
 {
 	unsigned long flags = 0;
 
@@ -627,7 +628,7 @@ err:
 }
 
 #ifdef CONFIG_PM
-int chd_dec_pci_suspend(struct pci_dev *pdev, pm_message_t state)
+static int chd_dec_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 {
 	struct crystalhd_adp *adp;
 	struct crystalhd_ioctl_data *temp;
@@ -661,7 +662,7 @@ int chd_dec_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 	return 0;
 }
 
-int chd_dec_pci_resume(struct pci_dev *pdev)
+static int chd_dec_pci_resume(struct pci_dev *pdev)
 {
 	struct crystalhd_adp *adp;
 	enum BC_STATUS sts = BC_STS_SUCCESS;
-- 
cgit 


From f88d818717f7d59fe6fce47443109ea0954436ca Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Mon, 7 Oct 2013 22:25:28 +0300
Subject: Staging: xgifb: braces {} are not necessary for single statement in
 vb_setmode

Fix checkpatch.pl issues with braces {} are not necessary
for single statement blocks in vb_setmode.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/xgifb/vb_setmode.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/xgifb/vb_setmode.c b/drivers/staging/xgifb/vb_setmode.c
index 46dea3f10888..eed58f9a0ad5 100644
--- a/drivers/staging/xgifb/vb_setmode.c
+++ b/drivers/staging/xgifb/vb_setmode.c
@@ -5274,9 +5274,8 @@ void XGI_SenseCRT1(struct vb_device_info *pVBInfo)
 
 	outb(0x00, pVBInfo->P3c8);
 
-	for (i = 0; i < 256 * 3; i++) {
+	for (i = 0; i < 256 * 3; i++)
 		outb(0x0F, (pVBInfo->P3c8 + 1)); /* DAC_TEST_PARMS */
-	}
 
 	mdelay(1);
 
@@ -5291,9 +5290,8 @@ void XGI_SenseCRT1(struct vb_device_info *pVBInfo)
 	/* avoid display something, set BLACK DAC if not restore DAC */
 	outb(0x00, pVBInfo->P3c8);
 
-	for (i = 0; i < 256 * 3; i++) {
+	for (i = 0; i < 256 * 3; i++)
 		outb(0, (pVBInfo->P3c8 + 1));
-	}
 
 	xgifb_reg_set(pVBInfo->P3c4, 0x01, SR01);
 	xgifb_reg_set(pVBInfo->P3d4, 0x63, CR63);
-- 
cgit 


From 95a7a86ad85e14ca3364a6007be280f3a6f8a7a6 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Mon, 7 Oct 2013 18:09:59 +0300
Subject: Staging: bcm: line over 80 characters in Bcmnet.c

Fix checkpatch.pl issues with line over 80 characters in Bcmnet.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/bcm/Bcmnet.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/bcm/Bcmnet.c b/drivers/staging/bcm/Bcmnet.c
index 4e470d4bb4e8..a567894753aa 100644
--- a/drivers/staging/bcm/Bcmnet.c
+++ b/drivers/staging/bcm/Bcmnet.c
@@ -142,7 +142,8 @@ static void bcm_get_drvinfo(struct net_device *dev,
 			    struct ethtool_drvinfo *info)
 {
 	struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(dev);
-	struct bcm_interface_adapter *psIntfAdapter = Adapter->pvInterfaceAdapter;
+	struct bcm_interface_adapter *psIntfAdapter =
+						Adapter->pvInterfaceAdapter;
 	struct usb_device *udev = interface_to_usbdev(psIntfAdapter->interface);
 
 	strlcpy(info->driver, DRV_NAME, sizeof(info->driver));
-- 
cgit 


From 5f8c609eb0ad5430d99ca59ac503ef457fb9a248 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Mon, 7 Oct 2013 10:10:55 -0500
Subject: staging: r8188eu: Fix skb leak in usb_read_port_complete()

In the completion routine for a usb_fill_bulk_urb() call, an skb is
leaked whenever the status of the USB transaction is not zero. A call
to skb_put() is needed to fix the problem.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/hal/usb_ops_linux.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/rtl8188eu/hal/usb_ops_linux.c b/drivers/staging/rtl8188eu/hal/usb_ops_linux.c
index 2a20f2348108..787763ef74c6 100644
--- a/drivers/staging/rtl8188eu/hal/usb_ops_linux.c
+++ b/drivers/staging/rtl8188eu/hal/usb_ops_linux.c
@@ -547,6 +547,8 @@ static void usb_read_port_complete(struct urb *purb, struct pt_regs *regs)
 		RT_TRACE(_module_hci_ops_os_c_, _drv_err_, ("usb_read_port_complete : purb->status(%d) != 0\n", purb->status));
 
 		DBG_88E("###=> usb_read_port_complete => urb status(%d)\n", purb->status);
+		skb_put(precvbuf->pskb, purb->actual_length);
+		precvbuf->pskb = NULL;
 
 		if (rtw_inc_and_chk_continual_urb_error(adapter_to_dvobj(adapt)))
 			adapt->bSurpriseRemoved = true;
-- 
cgit 


From 3ceba4ba9882bf9e5ecfa5823c79ba92659e4776 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Mon, 7 Oct 2013 17:29:38 +0100
Subject: staging: comedi: dt9812: remove ifdefed out enums

Remove the #if'd out DT9812_DEVID_... enumerated constants and line up
the comments for the others.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/dt9812.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/comedi/drivers/dt9812.c b/drivers/staging/comedi/drivers/dt9812.c
index 64565d4c902d..73af600c1725 100644
--- a/drivers/staging/comedi/drivers/dt9812.c
+++ b/drivers/staging/comedi/drivers/dt9812.c
@@ -85,13 +85,9 @@ for my needs.
 #define F020_MASK_DACxCN_DACxEN		0x80
 
 enum {
-	/* A/D  D/A  DI  DO  CT */
-	DT9812_DEVID_DT9812_10,	/*  8    2   8   8   1  +/- 10V */
-	DT9812_DEVID_DT9812_2PT5,	/* 8    2   8   8   1  0-2.44V */
-#if 0
-	DT9812_DEVID_DT9813,	/*  16   2   4   4   1  +/- 10V */
-	DT9812_DEVID_DT9814	/*  24   2   0   0   1  +/- 10V */
-#endif
+					/* A/D  D/A  DI  DO  CT */
+	DT9812_DEVID_DT9812_10,		/*  8    2   8   8   1  +/- 10V */
+	DT9812_DEVID_DT9812_2PT5,	/*  8    2   8   8   1  0-2.44V */
 };
 
 enum dt9812_gain {
-- 
cgit 


From 64d9b1d293fef4854a759ad946c2b99a20cc197b Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Mon, 7 Oct 2013 16:50:05 +0100
Subject: staging: comedi: remove unused 'channel flags' support

The `flags` and `flaglist` members of `struct comedi_subdevice` were
defined to supply "all-channel" flags via the `COMEDI_SUBDINFO` ioctl,
or "channel-specific" flags via the `COMEDI_CHANINFO` ioctls,
respectively.  However, no comedi driver has ever set them.

It's not entirely clear how "all-channel" flags would differ from the
"subdevice" flags passed by `COMEDI_SUBDINFO`.  It is conceivable that
"channel-specific" flags could be used to describe different analog
reference values (or whatever) supported by different channels.
Presumably these would use some sub-set of the `SDF_xxx` subdevice flag
values, or possibly the `CR_xxx` flag values that get packed into a
"chanspec" value (along with a channel number and range code).  The
original intentions are lost in the mists of time.

For now, just remove the `flags` and `flaglist` members from `struct
comedi_subdevice` and behave as though they have been left at their
default values (0 or NULL) by the low-level comedi driver.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/comedi_fops.c | 12 ++----------
 drivers/staging/comedi/comedidev.h   |  3 ---
 2 files changed, 2 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index 1636c7ca57e2..ff0e46d513ec 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -806,7 +806,6 @@ static int do_subdinfo_ioctl(struct comedi_device *dev,
 		} else {
 			us->range_type = 0;	/* XXX */
 		}
-		us->flags = s->flags;
 
 		if (s->busy)
 			us->subd_flags |= SDF_BUSY;
@@ -818,8 +817,6 @@ static int do_subdinfo_ioctl(struct comedi_device *dev,
 			us->subd_flags |= SDF_LOCK_OWNER;
 		if (!s->maxdata && s->maxdata_list)
 			us->subd_flags |= SDF_MAXDATA;
-		if (s->flaglist)
-			us->subd_flags |= SDF_FLAGS;
 		if (s->range_table_list)
 			us->subd_flags |= SDF_RANGETYPE;
 		if (s->do_cmd)
@@ -875,13 +872,8 @@ static int do_chaninfo_ioctl(struct comedi_device *dev,
 			return -EFAULT;
 	}
 
-	if (it.flaglist) {
-		if (!s->flaglist)
-			return -EINVAL;
-		if (copy_to_user(it.flaglist, s->flaglist,
-				 s->n_chan * sizeof(unsigned int)))
-			return -EFAULT;
-	}
+	if (it.flaglist)
+		return -EINVAL;	/* flaglist not supported */
 
 	if (it.rangelist) {
 		int i;
diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h
index 6db099bdbc58..7fa13417e6da 100644
--- a/drivers/staging/comedi/comedidev.h
+++ b/drivers/staging/comedi/comedidev.h
@@ -57,9 +57,6 @@ struct comedi_subdevice {
 	unsigned int maxdata;	/* if maxdata==0, use list */
 	const unsigned int *maxdata_list;	/* list is channel specific */
 
-	unsigned int flags;
-	const unsigned int *flaglist;
-
 	unsigned int settling_time_0;
 
 	const struct comedi_lrange *range_table;
-- 
cgit 


From cd94d281e9fa804c42a4e1b61f4430dbbf4cea18 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Mon, 7 Oct 2013 16:50:06 +0100
Subject: staging: comedi: remove 'settling_time_0' from subdevice

The `settling_time_0` member of `struct comedi_subdevice` can be set by
a low-level comedi driver and will be copied to user-space as part of
the information provided by the `COMEDI_SUBDINFO` ioctl.  No comedi
driver has ever set it; it's just been left at its initial value of 0.
Remove it to save a bit of space, and behave as though it is 0.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/comedi_fops.c | 2 --
 drivers/staging/comedi/comedidev.h   | 2 --
 2 files changed, 4 deletions(-)

diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index ff0e46d513ec..3594bd49bf0d 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -826,8 +826,6 @@ static int do_subdinfo_ioctl(struct comedi_device *dev,
 			us->insn_bits_support = COMEDI_SUPPORTED;
 		else
 			us->insn_bits_support = COMEDI_UNSUPPORTED;
-
-		us->settling_time_0 = s->settling_time_0;
 	}
 
 	ret = copy_to_user(arg, tmp, dev->n_subdevices * sizeof(*tmp));
diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h
index 7fa13417e6da..9a854b18758c 100644
--- a/drivers/staging/comedi/comedidev.h
+++ b/drivers/staging/comedi/comedidev.h
@@ -57,8 +57,6 @@ struct comedi_subdevice {
 	unsigned int maxdata;	/* if maxdata==0, use list */
 	const unsigned int *maxdata_list;	/* list is channel specific */
 
-	unsigned int settling_time_0;
-
 	const struct comedi_lrange *range_table;
 	const struct comedi_lrange *const *range_table_list;
 
-- 
cgit 


From 92928f1318a954d832e47920385b38c38e145fe5 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Mon, 7 Oct 2013 20:14:01 +0100
Subject: staging: vt6656: rxtx.c cleanup s_vGenerateTxParameter

Remove white space and commented out code.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/rxtx.c | 222 ++++++++++++++++++++++--------------------
 1 file changed, 115 insertions(+), 107 deletions(-)

diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index 93eba18a1b99..821b2e16b6fa 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -835,139 +835,147 @@ static u16 s_vGenerateTxParameter(struct vnt_private *pDevice,
 	u16 wFifoCtl;
 	u8 byFBOption = AUTO_FB_NONE;
 
-    //DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"s_vGenerateTxParameter...\n");
-    pFifoHead->wReserved = wCurrentRate;
-    wFifoCtl = pFifoHead->wFIFOCtl;
+	pFifoHead->wReserved = wCurrentRate;
+	wFifoCtl = pFifoHead->wFIFOCtl;
 
-    if (wFifoCtl & FIFOCTL_AUTO_FB_0) {
-        byFBOption = AUTO_FB_0;
-    }
-    else if (wFifoCtl & FIFOCTL_AUTO_FB_1) {
-        byFBOption = AUTO_FB_1;
-    }
+	if (wFifoCtl & FIFOCTL_AUTO_FB_0)
+		byFBOption = AUTO_FB_0;
+	else if (wFifoCtl & FIFOCTL_AUTO_FB_1)
+		byFBOption = AUTO_FB_1;
 
 	if (!pFifoHead)
 		return 0;
 
-    if (pDevice->bLongHeader)
-        cbMACHdLen = WLAN_HDR_ADDR3_LEN + 6;
-
-    if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
-	if (need_rts) {
-            //Fill RsvTime
-		struct vnt_rrv_time_rts *pBuf = &tx_buffer->tx_head.tx_rts.rts;
+	if (pDevice->bLongHeader)
+		cbMACHdLen = WLAN_HDR_ADDR3_LEN + 6;
 
-		pBuf->wRTSTxRrvTime_aa = s_uGetRTSCTSRsvTime(pDevice, 2,
-				byPktType, cbFrameSize, wCurrentRate);
-		pBuf->wRTSTxRrvTime_ba = s_uGetRTSCTSRsvTime(pDevice, 1,
-				byPktType, cbFrameSize, wCurrentRate);
-		pBuf->wRTSTxRrvTime_bb = s_uGetRTSCTSRsvTime(pDevice, 0,
+	if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) {
+		if (need_rts) {
+			struct vnt_rrv_time_rts *pBuf =
+					&tx_buffer->tx_head.tx_rts.rts;
+
+			pBuf->wRTSTxRrvTime_aa = s_uGetRTSCTSRsvTime(pDevice, 2,
+					byPktType, cbFrameSize, wCurrentRate);
+			pBuf->wRTSTxRrvTime_ba = s_uGetRTSCTSRsvTime(pDevice, 1,
+					byPktType, cbFrameSize, wCurrentRate);
+			pBuf->wRTSTxRrvTime_bb = s_uGetRTSCTSRsvTime(pDevice, 0,
 				byPktType, cbFrameSize, wCurrentRate);
-		pBuf->wTxRrvTime_a = vnt_rxtx_rsvtime_le16(pDevice,
-			byPktType, cbFrameSize, wCurrentRate, bNeedACK);
-		pBuf->wTxRrvTime_b = vnt_rxtx_rsvtime_le16(pDevice,
-			PK_TYPE_11B, cbFrameSize, pDevice->byTopCCKBasicRate,
-				bNeedACK);
 
-		if (need_mic) {
-			*mic_hdr = &tx_buffer->tx_head.tx_rts.tx.mic.hdr;
-			head = &tx_buffer->tx_head.tx_rts.tx.mic.head;
-		} else {
-			head = &tx_buffer->tx_head.tx_rts.tx.head;
-		}
+			pBuf->wTxRrvTime_a = vnt_rxtx_rsvtime_le16(pDevice,
+				byPktType, cbFrameSize, wCurrentRate, bNeedACK);
+			pBuf->wTxRrvTime_b = vnt_rxtx_rsvtime_le16(pDevice,
+					PK_TYPE_11B, cbFrameSize,
+					pDevice->byTopCCKBasicRate, bNeedACK);
+
+			if (need_mic) {
+				*mic_hdr = &tx_buffer->
+						tx_head.tx_rts.tx.mic.hdr;
+				head = &tx_buffer->tx_head.tx_rts.tx.mic.head;
+			} else {
+				head = &tx_buffer->tx_head.tx_rts.tx.head;
+			}
 
-		/* Fill RTS */
-		return s_vFillRTSHead(pDevice, byPktType, head, cbFrameSize,
-			bNeedACK, psEthHeader, wCurrentRate, byFBOption);
-        }
-        else {//RTS_needless, PCF mode
-            //Fill RsvTime
-		struct vnt_rrv_time_cts *pBuf = &tx_buffer->tx_head.tx_cts.cts;
-
-		pBuf->wTxRrvTime_a = vnt_rxtx_rsvtime_le16(pDevice, byPktType,
-			cbFrameSize, wCurrentRate, bNeedACK);
-		pBuf->wTxRrvTime_b = vnt_rxtx_rsvtime_le16(pDevice,
-			PK_TYPE_11B, cbFrameSize,
-			pDevice->byTopCCKBasicRate, bNeedACK);
-		pBuf->wCTSTxRrvTime_ba = s_uGetRTSCTSRsvTime(pDevice, 3,
-				byPktType, cbFrameSize, wCurrentRate);
+			/* Fill RTS */
+			return s_vFillRTSHead(pDevice, byPktType, head,
+					cbFrameSize, bNeedACK, psEthHeader,
+						wCurrentRate, byFBOption);
 
+		} else {
+			struct vnt_rrv_time_cts *pBuf = &tx_buffer->
+							tx_head.tx_cts.cts;
+
+			pBuf->wTxRrvTime_a = vnt_rxtx_rsvtime_le16(pDevice,
+				byPktType, cbFrameSize, wCurrentRate, bNeedACK);
+			pBuf->wTxRrvTime_b = vnt_rxtx_rsvtime_le16(pDevice,
+				PK_TYPE_11B, cbFrameSize,
+					pDevice->byTopCCKBasicRate, bNeedACK);
+
+			pBuf->wCTSTxRrvTime_ba = s_uGetRTSCTSRsvTime(pDevice, 3,
+					byPktType, cbFrameSize, wCurrentRate);
+
+			if (need_mic) {
+				*mic_hdr = &tx_buffer->
+						tx_head.tx_cts.tx.mic.hdr;
+				head = &tx_buffer->tx_head.tx_cts.tx.mic.head;
+			} else {
+				head = &tx_buffer->tx_head.tx_cts.tx.head;
+			}
+
+			/* Fill CTS */
+			return s_vFillCTSHead(pDevice, uDMAIdx, byPktType,
+				head, cbFrameSize, bNeedACK, wCurrentRate,
+					byFBOption);
+		}
+	} else if (byPktType == PK_TYPE_11A) {
 		if (need_mic) {
-			*mic_hdr = &tx_buffer->tx_head.tx_cts.tx.mic.hdr;
-			head = &tx_buffer->tx_head.tx_cts.tx.mic.head;
+			*mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
+			head = &tx_buffer->tx_head.tx_ab.tx.mic.head;
 		} else {
-			head = &tx_buffer->tx_head.tx_cts.tx.head;
+			head = &tx_buffer->tx_head.tx_ab.tx.head;
 		}
 
-		/* Fill CTS */
-		return s_vFillCTSHead(pDevice, uDMAIdx, byPktType, head,
-			cbFrameSize, bNeedACK, wCurrentRate, byFBOption);
-        }
-    }
-    else if (byPktType == PK_TYPE_11A) {
-	if (need_mic) {
-		*mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
-		head = &tx_buffer->tx_head.tx_ab.tx.mic.head;
-	} else {
-		head = &tx_buffer->tx_head.tx_ab.tx.head;
-	}
-
-	if (need_rts) {
-            //Fill RsvTime
-		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.tx_ab.ab;
+		if (need_rts) {
+			struct vnt_rrv_time_ab *pBuf = &tx_buffer->
+							tx_head.tx_ab.ab;
 
-		pBuf->wRTSTxRrvTime = s_uGetRTSCTSRsvTime(pDevice, 2,
+			pBuf->wRTSTxRrvTime = s_uGetRTSCTSRsvTime(pDevice, 2,
 				byPktType, cbFrameSize, wCurrentRate);
-		pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice, byPktType,
-				cbFrameSize, wCurrentRate, bNeedACK);
 
-		/* Fill RTS */
-		return s_vFillRTSHead(pDevice, byPktType, head, cbFrameSize,
-			bNeedACK, psEthHeader, wCurrentRate, byFBOption);
-	} else {
-            //Fill RsvTime
-		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.tx_ab.ab;
+			pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice,
+				byPktType, cbFrameSize, wCurrentRate, bNeedACK);
 
-		pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11A,
-			cbFrameSize, wCurrentRate, bNeedACK);
+			/* Fill RTS */
+			return s_vFillRTSHead(pDevice, byPktType, head,
+				cbFrameSize, bNeedACK, psEthHeader,
+					wCurrentRate, byFBOption);
+		} else {
+			struct vnt_rrv_time_ab *pBuf = &tx_buffer->
+							tx_head.tx_ab.ab;
 
-		return vnt_rxtx_datahead_a_fb(pDevice, byPktType, wCurrentRate,
-			&head->data_head_a_fb, cbFrameSize, bNeedACK);
-        }
-    }
-    else if (byPktType == PK_TYPE_11B) {
-	if (need_mic) {
-		*mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
-		head = &tx_buffer->tx_head.tx_ab.tx.mic.head;
-	} else {
-		head = &tx_buffer->tx_head.tx_ab.tx.head;
-	}
+			pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice,
+				PK_TYPE_11A, cbFrameSize,
+					wCurrentRate, bNeedACK);
 
-	if (need_rts) {
-            //Fill RsvTime
-		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.tx_ab.ab;
+			return vnt_rxtx_datahead_a_fb(pDevice, byPktType,
+				wCurrentRate, &head->data_head_a_fb,
+						cbFrameSize, bNeedACK);
+		}
+	} else if (byPktType == PK_TYPE_11B) {
+		if (need_mic) {
+			*mic_hdr = &tx_buffer->tx_head.tx_ab.tx.mic.hdr;
+			head = &tx_buffer->tx_head.tx_ab.tx.mic.head;
+		} else {
+			head = &tx_buffer->tx_head.tx_ab.tx.head;
+		}
+
+		if (need_rts) {
+			struct vnt_rrv_time_ab *pBuf = &tx_buffer->
+							tx_head.tx_ab.ab;
 
-		pBuf->wRTSTxRrvTime = s_uGetRTSCTSRsvTime(pDevice, 0,
+			pBuf->wRTSTxRrvTime = s_uGetRTSCTSRsvTime(pDevice, 0,
 				byPktType, cbFrameSize, wCurrentRate);
-		pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B,
-				cbFrameSize, wCurrentRate, bNeedACK);
 
-		/* Fill RTS */
-		return s_vFillRTSHead(pDevice, byPktType, head, cbFrameSize,
+			pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice,
+				PK_TYPE_11B, cbFrameSize, wCurrentRate,
+								bNeedACK);
+
+			/* Fill RTS */
+			return s_vFillRTSHead(pDevice, byPktType, head,
+				cbFrameSize,
 			bNeedACK, psEthHeader, wCurrentRate, byFBOption);
-        }
-        else { //RTS_needless, non PCF mode
-            //Fill RsvTime
-		struct vnt_rrv_time_ab *pBuf = &tx_buffer->tx_head.tx_ab.ab;
+		} else {
+			struct vnt_rrv_time_ab *pBuf = &tx_buffer->
+							tx_head.tx_ab.ab;
 
-		pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice, PK_TYPE_11B,
-			cbFrameSize, wCurrentRate, bNeedACK);
+			pBuf->wTxRrvTime = vnt_rxtx_rsvtime_le16(pDevice,
+				PK_TYPE_11B, cbFrameSize,
+					wCurrentRate, bNeedACK);
 
-		return vnt_rxtx_datahead_ab(pDevice, byPktType, wCurrentRate,
-			&head->data_head_ab, cbFrameSize, bNeedACK);
-        }
-    }
-    //DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"s_vGenerateTxParameter END.\n");
+			return vnt_rxtx_datahead_ab(pDevice, byPktType,
+				wCurrentRate, &head->data_head_ab,
+					cbFrameSize, bNeedACK);
+		}
+	}
 
 	return 0;
 }
-- 
cgit 


From 67aa4acbc97f6a55b328e4e2305ef19cbe949d85 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Mon, 7 Oct 2013 15:51:58 +0100
Subject: staging: comedi: avoid memleak for subdevice private

`comedi_alloc_spriv()` allocates private storage for a comedi subdevice
and sets the `SRF_FREE_SPRIV` flag in the `runflags` member of the
subdevice to allow the private storage to be automatically freed when
the comedi device is being cleaned up.  Unfortunately, the flag gets
clobbered by `do_cmd_ioctl()` which calls
`comedi_set_subdevice_runflags()` with a mask value `~0` and only the
`SRF_USER` and `SRF_RUNNING` flags set, all the other SRF flags being
cleared.

Change the calls to `comedi_set_subdevice_runflags()` that currently use
a mask value of `~0` to use a more relevant mask value.  For
`do_cmd_ioctl()`, the relevant SRF flags are `SRF_USER`, `SRF_ERROR` and
`SRF_RUNNING`.  (At one time, `SRF_RT` would be included in that set of
flags, but it is no longer used.)  For `comedi_alloc_spriv()` replace
the call to `comedi_set_subdevice_runflags()` with a simple
OR-assignment to avoid unnecessary use of a spin-lock.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Cc: <stable@vger.kernel.org> # 3.11.y
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/comedi_fops.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index 3594bd49bf0d..721df313f8df 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -543,7 +543,7 @@ void *comedi_alloc_spriv(struct comedi_subdevice *s, size_t size)
 {
 	s->private = kzalloc(size, GFP_KERNEL);
 	if (s->private)
-		comedi_set_subdevice_runflags(s, ~0, SRF_FREE_SPRIV);
+		s->runflags |= SRF_FREE_SPRIV;
 	return s->private;
 }
 EXPORT_SYMBOL_GPL(comedi_alloc_spriv);
@@ -1475,7 +1475,8 @@ static int do_cmd_ioctl(struct comedi_device *dev,
 	if (async->cmd.flags & TRIG_WAKE_EOS)
 		async->cb_mask |= COMEDI_CB_EOS;
 
-	comedi_set_subdevice_runflags(s, ~0, SRF_USER | SRF_RUNNING);
+	comedi_set_subdevice_runflags(s, SRF_USER | SRF_ERROR | SRF_RUNNING,
+				      SRF_USER | SRF_RUNNING);
 
 	/* set s->busy _after_ setting SRF_RUNNING flag to avoid race with
 	 * comedi_read() or comedi_write() */
-- 
cgit 


From f8fe36f6083a70270a7305f7740b124ff1e8aea7 Mon Sep 17 00:00:00 2001
From: Felipe Pena <felipensp@gmail.com>
Date: Mon, 7 Oct 2013 23:25:44 -0300
Subject: clk/zynq: Fix possible memory leak
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The zynq_clk_register_fclk function can leak memory (fclk_lock) when unable
to alloc memory for fclk_gate_lock

Signed-off-by: Felipe Pena <felipensp@gmail.com>
Acked-by: Sören Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
 drivers/clk/zynq/clkc.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/zynq/clkc.c b/drivers/clk/zynq/clkc.c
index cc40fe64f2dc..10772aa72e4e 100644
--- a/drivers/clk/zynq/clkc.c
+++ b/drivers/clk/zynq/clkc.c
@@ -117,13 +117,19 @@ static void __init zynq_clk_register_fclk(enum zynq_clk fclk,
 		goto err;
 	fclk_gate_lock = kmalloc(sizeof(*fclk_gate_lock), GFP_KERNEL);
 	if (!fclk_gate_lock)
-		goto err;
+		goto err_fclk_gate_lock;
 	spin_lock_init(fclk_lock);
 	spin_lock_init(fclk_gate_lock);
 
 	mux_name = kasprintf(GFP_KERNEL, "%s_mux", clk_name);
+	if (!mux_name)
+		goto err_mux_name;
 	div0_name = kasprintf(GFP_KERNEL, "%s_div0", clk_name);
+	if (!div0_name)
+		goto err_div0_name;
 	div1_name = kasprintf(GFP_KERNEL, "%s_div1", clk_name);
+	if (!div1_name)
+		goto err_div1_name;
 
 	clk = clk_register_mux(NULL, mux_name, parents, 4,
 			CLK_SET_RATE_NO_REPARENT, fclk_ctrl_reg, 4, 2, 0,
@@ -147,6 +153,14 @@ static void __init zynq_clk_register_fclk(enum zynq_clk fclk,
 
 	return;
 
+err_div1_name:
+	kfree(div0_name);
+err_div0_name:
+	kfree(mux_name);
+err_mux_name:
+	kfree(fclk_gate_lock);
+err_fclk_gate_lock:
+	kfree(fclk_lock);
 err:
 	clks[fclk] = ERR_PTR(-ENOMEM);
 }
-- 
cgit 


From f61027426a5bc7093aa8359a411b053a35bb4b68 Mon Sep 17 00:00:00 2001
From: Mike Turquette <mturquette@linaro.org>
Date: Mon, 7 Oct 2013 23:12:13 -0700
Subject: clk: of: helper for determining number of parent clocks

Walks the "clocks" array of parent clock phandles and returns the
number.

Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
 drivers/clk/clk.c            | 6 ++++++
 include/linux/clk-provider.h | 1 +
 2 files changed, 7 insertions(+)

diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index 32e2fed6d143..2cf2ea6b77a1 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -2202,6 +2202,12 @@ struct clk *of_clk_get_from_provider(struct of_phandle_args *clkspec)
 	return clk;
 }
 
+int of_clk_get_parent_count(struct device_node *np)
+{
+	return of_count_phandle_with_args(np, "clocks", "#clock-cells");
+}
+EXPORT_SYMBOL_GPL(of_clk_get_parent_count);
+
 const char *of_clk_get_parent_name(struct device_node *np, int index)
 {
 	struct of_phandle_args clkspec;
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h
index 73bdb69f0c08..7e59253b8603 100644
--- a/include/linux/clk-provider.h
+++ b/include/linux/clk-provider.h
@@ -472,6 +472,7 @@ void of_clk_del_provider(struct device_node *np);
 struct clk *of_clk_src_simple_get(struct of_phandle_args *clkspec,
 				  void *data);
 struct clk *of_clk_src_onecell_get(struct of_phandle_args *clkspec, void *data);
+int of_clk_get_parent_count(struct device_node *np);
 const char *of_clk_get_parent_name(struct device_node *np, int index);
 
 void of_clk_init(const struct of_device_id *matches);
-- 
cgit 


From 5d150eac17e1b8eb153c69939ad5f90e10ea2350 Mon Sep 17 00:00:00 2001
From: Gwenhael Goavec-Merou <gwenhael.goavec-merou@armadeus.com>
Date: Sun, 6 Oct 2013 13:48:52 +0200
Subject: ARM: imx51-apf51dev: Add parallel display support

Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@armadeus.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx51-apf51dev.dts | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm/boot/dts/imx51-apf51dev.dts b/arch/arm/boot/dts/imx51-apf51dev.dts
index 123fe84e0e8c..5a7f552786a1 100644
--- a/arch/arm/boot/dts/imx51-apf51dev.dts
+++ b/arch/arm/boot/dts/imx51-apf51dev.dts
@@ -16,6 +16,33 @@
 	model = "Armadeus Systems APF51Dev docking/development board";
 	compatible = "armadeus,imx51-apf51dev", "armadeus,imx51-apf51", "fsl,imx51";
 
+	display@di1 {
+		compatible = "fsl,imx-parallel-display";
+		crtcs = <&ipu 0>;
+		interface-pix-fmt = "bgr666";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_ipu_disp1_1>;
+
+		display-timings {
+			lw700 {
+				native-mode;
+				clock-frequency = <33000033>;
+				hactive = <800>;
+				vactive = <480>;
+				hback-porch = <96>;
+				hfront-porch = <96>;
+				vback-porch = <20>;
+				vfront-porch = <21>;
+				hsync-len = <64>;
+				vsync-len = <4>;
+				hsync-active = <1>;
+				vsync-active = <1>;
+				de-active = <1>;
+				pixelclk-active = <0>;
+			};
+		};
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";
 
-- 
cgit 


From e724a2fc00609db1e4efae9e855fbc94fba915d2 Mon Sep 17 00:00:00 2001
From: Gwenhael Goavec-Merou <gwenhael.goavec-merou@armadeus.com>
Date: Sun, 6 Oct 2013 16:07:54 +0200
Subject: ARM: imx27-apf27dev: Add framebuffer support

Signed-off-by: Gwenhael Goavec-Merou <gwenhael.goavec-merou@armadeus.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx27-apf27dev.dts | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm/boot/dts/imx27-apf27dev.dts b/arch/arm/boot/dts/imx27-apf27dev.dts
index 2a377ca1881a..47c8c26012e4 100644
--- a/arch/arm/boot/dts/imx27-apf27dev.dts
+++ b/arch/arm/boot/dts/imx27-apf27dev.dts
@@ -16,6 +16,26 @@
 	model = "Armadeus Systems APF27Dev docking/development board";
 	compatible = "armadeus,imx27-apf27dev", "armadeus,imx27-apf27", "fsl,imx27";
 
+	display: display {
+		model = "Chimei-LW700AT9003";
+		native-mode = <&timing0>;
+		bits-per-pixel = <16>;  /* non-standard but required */
+		fsl,pcr = <0xfae80083>;	/* non-standard but required */
+		display-timings {
+			timing0: 640x480 {
+				clock-frequency = <33000033>;
+				hactive = <800>;
+				vactive = <640>;
+				hback-porch = <96>;
+				hfront-porch = <96>;
+				vback-porch = <20>;
+				vfront-porch = <21>;
+				hsync-len = <64>;
+				vsync-len = <4>;
+			};
+		};
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";
 
@@ -50,6 +70,12 @@
 	status = "okay";
 };
 
+&fb {
+	display = <&display>;
+	fsl,dmacr = <0x00020010>;
+	status = "okay";
+};
+
 &i2c1 {
 	clock-frequency = <400000>;
 	status = "okay";
-- 
cgit 


From 606fca94f7bd156d37be1b38b3aded3ede5994b1 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sat, 28 Sep 2013 17:38:48 +0530
Subject: pinctrl: remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

This is a squash commit of:
pinctrl: at91: Remove redundant of_match_ptr
pinctrl: exynos5440: Remove redundant of_match_ptr
pinctrl: imx35: Remove redundant of_match_ptr
pinctrl: imx51: Remove redundant of_match_ptr
pinctrl: imx53: Remove redundant of_match_ptr
pinctrl: imx6dl: Remove redundant of_match_ptr
pinctrl: imx6q: Remove redundant of_match_ptr
pinctrl: samsung: Remove redundant of_match_ptr
pinctrl: vf610: Remove redundant of_match_ptr
pinctrl: imx6sl: Remove redundant of_match_ptr
pinctrl: plgpio: Remove redundant of_match_ptr

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-at91.c         | 4 ++--
 drivers/pinctrl/pinctrl-exynos5440.c   | 2 +-
 drivers/pinctrl/pinctrl-imx35.c        | 2 +-
 drivers/pinctrl/pinctrl-imx51.c        | 2 +-
 drivers/pinctrl/pinctrl-imx53.c        | 2 +-
 drivers/pinctrl/pinctrl-imx6dl.c       | 2 +-
 drivers/pinctrl/pinctrl-imx6q.c        | 2 +-
 drivers/pinctrl/pinctrl-imx6sl.c       | 2 +-
 drivers/pinctrl/pinctrl-samsung.c      | 2 +-
 drivers/pinctrl/pinctrl-vf610.c        | 2 +-
 drivers/pinctrl/spear/pinctrl-plgpio.c | 2 +-
 11 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index 8ed9be8b96b5..0c8bf9318aed 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -1679,7 +1679,7 @@ static struct platform_driver at91_gpio_driver = {
 	.driver = {
 		.name = "gpio-at91",
 		.owner = THIS_MODULE,
-		.of_match_table = of_match_ptr(at91_gpio_of_match),
+		.of_match_table = at91_gpio_of_match,
 	},
 	.probe = at91_gpio_probe,
 };
@@ -1688,7 +1688,7 @@ static struct platform_driver at91_pinctrl_driver = {
 	.driver = {
 		.name = "pinctrl-at91",
 		.owner = THIS_MODULE,
-		.of_match_table = of_match_ptr(at91_pinctrl_of_match),
+		.of_match_table = at91_pinctrl_of_match,
 	},
 	.probe = at91_pinctrl_probe,
 	.remove = at91_pinctrl_remove,
diff --git a/drivers/pinctrl/pinctrl-exynos5440.c b/drivers/pinctrl/pinctrl-exynos5440.c
index 544d469c5a7b..8fe2ab0a7698 100644
--- a/drivers/pinctrl/pinctrl-exynos5440.c
+++ b/drivers/pinctrl/pinctrl-exynos5440.c
@@ -1048,7 +1048,7 @@ static struct platform_driver exynos5440_pinctrl_driver = {
 	.driver = {
 		.name	= "exynos5440-pinctrl",
 		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(exynos5440_pinctrl_dt_match),
+		.of_match_table = exynos5440_pinctrl_dt_match,
 	},
 };
 
diff --git a/drivers/pinctrl/pinctrl-imx35.c b/drivers/pinctrl/pinctrl-imx35.c
index c4549829fc47..278a04ae8940 100644
--- a/drivers/pinctrl/pinctrl-imx35.c
+++ b/drivers/pinctrl/pinctrl-imx35.c
@@ -1019,7 +1019,7 @@ static struct platform_driver imx35_pinctrl_driver = {
 	.driver = {
 		.name = "imx35-pinctrl",
 		.owner = THIS_MODULE,
-		.of_match_table = of_match_ptr(imx35_pinctrl_of_match),
+		.of_match_table = imx35_pinctrl_of_match,
 	},
 	.probe = imx35_pinctrl_probe,
 	.remove = imx_pinctrl_remove,
diff --git a/drivers/pinctrl/pinctrl-imx51.c b/drivers/pinctrl/pinctrl-imx51.c
index db268b920079..19ab182bef61 100644
--- a/drivers/pinctrl/pinctrl-imx51.c
+++ b/drivers/pinctrl/pinctrl-imx51.c
@@ -782,7 +782,7 @@ static struct platform_driver imx51_pinctrl_driver = {
 	.driver = {
 		.name = "imx51-pinctrl",
 		.owner = THIS_MODULE,
-		.of_match_table = of_match_ptr(imx51_pinctrl_of_match),
+		.of_match_table = imx51_pinctrl_of_match,
 	},
 	.probe = imx51_pinctrl_probe,
 	.remove = imx_pinctrl_remove,
diff --git a/drivers/pinctrl/pinctrl-imx53.c b/drivers/pinctrl/pinctrl-imx53.c
index 17562ae9005c..f8d45c4cfde7 100644
--- a/drivers/pinctrl/pinctrl-imx53.c
+++ b/drivers/pinctrl/pinctrl-imx53.c
@@ -468,7 +468,7 @@ static struct platform_driver imx53_pinctrl_driver = {
 	.driver = {
 		.name = "imx53-pinctrl",
 		.owner = THIS_MODULE,
-		.of_match_table = of_match_ptr(imx53_pinctrl_of_match),
+		.of_match_table = imx53_pinctrl_of_match,
 	},
 	.probe = imx53_pinctrl_probe,
 	.remove = imx_pinctrl_remove,
diff --git a/drivers/pinctrl/pinctrl-imx6dl.c b/drivers/pinctrl/pinctrl-imx6dl.c
index a76b72427936..db2a1489bd99 100644
--- a/drivers/pinctrl/pinctrl-imx6dl.c
+++ b/drivers/pinctrl/pinctrl-imx6dl.c
@@ -474,7 +474,7 @@ static struct platform_driver imx6dl_pinctrl_driver = {
 	.driver = {
 		.name = "imx6dl-pinctrl",
 		.owner = THIS_MODULE,
-		.of_match_table = of_match_ptr(imx6dl_pinctrl_of_match),
+		.of_match_table = imx6dl_pinctrl_of_match,
 	},
 	.probe = imx6dl_pinctrl_probe,
 	.remove = imx_pinctrl_remove,
diff --git a/drivers/pinctrl/pinctrl-imx6q.c b/drivers/pinctrl/pinctrl-imx6q.c
index 76dd9c4949f4..8eb5ac1bd5f6 100644
--- a/drivers/pinctrl/pinctrl-imx6q.c
+++ b/drivers/pinctrl/pinctrl-imx6q.c
@@ -480,7 +480,7 @@ static struct platform_driver imx6q_pinctrl_driver = {
 	.driver = {
 		.name = "imx6q-pinctrl",
 		.owner = THIS_MODULE,
-		.of_match_table = of_match_ptr(imx6q_pinctrl_of_match),
+		.of_match_table = imx6q_pinctrl_of_match,
 	},
 	.probe = imx6q_pinctrl_probe,
 	.remove = imx_pinctrl_remove,
diff --git a/drivers/pinctrl/pinctrl-imx6sl.c b/drivers/pinctrl/pinctrl-imx6sl.c
index 4eb7ccab5f2d..f21b7389df3c 100644
--- a/drivers/pinctrl/pinctrl-imx6sl.c
+++ b/drivers/pinctrl/pinctrl-imx6sl.c
@@ -380,7 +380,7 @@ static struct platform_driver imx6sl_pinctrl_driver = {
 	.driver = {
 		.name = "imx6sl-pinctrl",
 		.owner = THIS_MODULE,
-		.of_match_table = of_match_ptr(imx6sl_pinctrl_of_match),
+		.of_match_table = imx6sl_pinctrl_of_match,
 	},
 	.probe = imx6sl_pinctrl_probe,
 	.remove = imx_pinctrl_remove,
diff --git a/drivers/pinctrl/pinctrl-samsung.c b/drivers/pinctrl/pinctrl-samsung.c
index 92a9d6c8db0a..47ec2e8741e4 100644
--- a/drivers/pinctrl/pinctrl-samsung.c
+++ b/drivers/pinctrl/pinctrl-samsung.c
@@ -1148,7 +1148,7 @@ static struct platform_driver samsung_pinctrl_driver = {
 	.driver = {
 		.name	= "samsung-pinctrl",
 		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(samsung_pinctrl_dt_match),
+		.of_match_table = samsung_pinctrl_dt_match,
 	},
 };
 
diff --git a/drivers/pinctrl/pinctrl-vf610.c b/drivers/pinctrl/pinctrl-vf610.c
index 68a970b1dbcf..bddd913d28ba 100644
--- a/drivers/pinctrl/pinctrl-vf610.c
+++ b/drivers/pinctrl/pinctrl-vf610.c
@@ -316,7 +316,7 @@ static struct platform_driver vf610_pinctrl_driver = {
 	.driver = {
 		.name = "vf610-pinctrl",
 		.owner = THIS_MODULE,
-		.of_match_table = of_match_ptr(vf610_pinctrl_of_match),
+		.of_match_table = vf610_pinctrl_of_match,
 	},
 	.probe = vf610_pinctrl_probe,
 	.remove = imx_pinctrl_remove,
diff --git a/drivers/pinctrl/spear/pinctrl-plgpio.c b/drivers/pinctrl/spear/pinctrl-plgpio.c
index 0a7f0bdbaa7d..ff2940e9f2a7 100644
--- a/drivers/pinctrl/spear/pinctrl-plgpio.c
+++ b/drivers/pinctrl/spear/pinctrl-plgpio.c
@@ -735,7 +735,7 @@ static struct platform_driver plgpio_driver = {
 		.owner = THIS_MODULE,
 		.name = "spear-plgpio",
 		.pm = &plgpio_dev_pm_ops,
-		.of_match_table = of_match_ptr(plgpio_of_match),
+		.of_match_table = plgpio_of_match,
 	},
 };
 
-- 
cgit 


From fb85f4290ddf646548ac30848863f3211c3d2e54 Mon Sep 17 00:00:00 2001
From: Qipan Li <Qipan.Li@csr.com>
Date: Sun, 29 Sep 2013 22:27:57 +0800
Subject: pinctrl: sirf: add lost uart0-no-stream-control pingroup for prima2

the old codes defined uart0_nostreamctrl_pins, but missed pingroup
and padmux definition for it. this patch fixes it.

Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/prima2.dtsi         | 6 ++++++
 drivers/pinctrl/sirf/pinctrl-prima2.c | 3 +++
 2 files changed, 9 insertions(+)

diff --git a/arch/arm/boot/dts/prima2.dtsi b/arch/arm/boot/dts/prima2.dtsi
index bbeb623fc2c6..766aa395f85c 100644
--- a/arch/arm/boot/dts/prima2.dtsi
+++ b/arch/arm/boot/dts/prima2.dtsi
@@ -341,6 +341,12 @@
 						sirf,function = "uart0";
 					};
 				};
+				uart0_noflow_pins_a: uart0@1 {
+					uart {
+						sirf,pins = "uart0_nostreamctrlgrp";
+						sirf,function = "uart0_nostreamctrl";
+					};
+				};
 				uart1_pins_a: uart1@0 {
 					uart {
 						sirf,pins = "uart1grp";
diff --git a/drivers/pinctrl/sirf/pinctrl-prima2.c b/drivers/pinctrl/sirf/pinctrl-prima2.c
index 1f0ad1ef5a3a..29fc842b6d91 100644
--- a/drivers/pinctrl/sirf/pinctrl-prima2.c
+++ b/drivers/pinctrl/sirf/pinctrl-prima2.c
@@ -764,6 +764,7 @@ static const struct sirfsoc_pin_group sirfsoc_pin_groups[] = {
 	SIRFSOC_PIN_GROUP("lcd_24bitsgrp", lcd_24bits_pins),
 	SIRFSOC_PIN_GROUP("lcdrom_grp", lcdrom_pins),
 	SIRFSOC_PIN_GROUP("uart0grp", uart0_pins),
+	SIRFSOC_PIN_GROUP("uart0_nostreamctrlgrp", uart0_nostreamctrl_pins),
 	SIRFSOC_PIN_GROUP("uart1grp", uart1_pins),
 	SIRFSOC_PIN_GROUP("uart2grp", uart2_pins),
 	SIRFSOC_PIN_GROUP("uart2_nostreamctrlgrp", uart2_nostreamctrl_pins),
@@ -803,6 +804,7 @@ static const char * const lcd_18bitsgrp[] = { "lcd_18bitsgrp" };
 static const char * const lcd_24bitsgrp[] = { "lcd_24bitsgrp" };
 static const char * const lcdromgrp[] = { "lcdromgrp" };
 static const char * const uart0grp[] = { "uart0grp" };
+static const char * const uart0_nostreamctrlgrp[] = { "uart0_nostreamctrlgrp" };
 static const char * const uart1grp[] = { "uart1grp" };
 static const char * const uart2grp[] = { "uart2grp" };
 static const char * const uart2_nostreamctrlgrp[] = { "uart2_nostreamctrlgrp" };
@@ -842,6 +844,7 @@ static const struct sirfsoc_pmx_func sirfsoc_pmx_functions[] = {
 	SIRFSOC_PMX_FUNCTION("lcd_24bits", lcd_24bitsgrp, lcd_24bits_padmux),
 	SIRFSOC_PMX_FUNCTION("lcdrom", lcdromgrp, lcdrom_padmux),
 	SIRFSOC_PMX_FUNCTION("uart0", uart0grp, uart0_padmux),
+	SIRFSOC_PMX_FUNCTION("uart0_nostreamctrl", uart0_nostreamctrlgrp, uart0_nostreamctrl_padmux),
 	SIRFSOC_PMX_FUNCTION("uart1", uart1grp, uart1_padmux),
 	SIRFSOC_PMX_FUNCTION("uart2", uart2grp, uart2_padmux),
 	SIRFSOC_PMX_FUNCTION("uart2_nostreamctrl", uart2_nostreamctrlgrp, uart2_nostreamctrl_padmux),
-- 
cgit 


From af614b2301f0e30423240a754ec2812a4c793201 Mon Sep 17 00:00:00 2001
From: Qipan Li <Qipan.Li@csr.com>
Date: Sun, 29 Sep 2013 22:27:58 +0800
Subject: pinctrl: sirf: add lost USP-based UART pin groups for prima2

USP(Universal Serial Ports) can be UART as commit 5df831117b85a08e7aa,
this patch defines the USP-based UART function pin groups for prima2.

Signed-off-by: Qipan Li <Qipan.Li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/prima2.dtsi         | 24 ++++++++++++++
 drivers/pinctrl/sirf/pinctrl-prima2.c | 60 +++++++++++++++++++++++++++++++++++
 2 files changed, 84 insertions(+)

diff --git a/arch/arm/boot/dts/prima2.dtsi b/arch/arm/boot/dts/prima2.dtsi
index 766aa395f85c..569763a0e788 100644
--- a/arch/arm/boot/dts/prima2.dtsi
+++ b/arch/arm/boot/dts/prima2.dtsi
@@ -485,18 +485,42 @@
                                                 sirf,function = "usp0";
                                         };
                                 };
+				usp0_uart_nostreamctrl_pins_a: usp0@1 {
+                                        usp0 {
+                                                sirf,pins =
+							"usp0_uart_nostreamctrl_grp";
+                                                sirf,function =
+							"usp0_uart_nostreamctrl";
+                                        };
+                                };
                                 usp1_pins_a: usp1@0 {
                                         usp1 {
                                                 sirf,pins = "usp1grp";
                                                 sirf,function = "usp1";
                                         };
                                 };
+				usp1_uart_nostreamctrl_pins_a: usp1@1 {
+                                        usp1 {
+                                                sirf,pins =
+							"usp1_uart_nostreamctrl_grp";
+                                                sirf,function =
+							"usp1_uart_nostreamctrl";
+                                        };
+                                };
                                 usp2_pins_a: usp2@0 {
                                         usp2 {
                                                 sirf,pins = "usp2grp";
                                                 sirf,function = "usp2";
                                         };
                                 };
+				usp2_uart_nostreamctrl_pins_a: usp2@1 {
+                                        usp2 {
+                                                sirf,pins =
+							"usp2_uart_nostreamctrl_grp";
+                                                sirf,function =
+							"usp2_uart_nostreamctrl";
+                                        };
+                                };
                                 usb0_utmi_drvbus_pins_a: usb0_utmi_drvbus@0 {
                                         usb0_utmi_drvbus {
                                                 sirf,pins = "usb0_utmi_drvbusgrp";
diff --git a/drivers/pinctrl/sirf/pinctrl-prima2.c b/drivers/pinctrl/sirf/pinctrl-prima2.c
index 29fc842b6d91..241d83992692 100644
--- a/drivers/pinctrl/sirf/pinctrl-prima2.c
+++ b/drivers/pinctrl/sirf/pinctrl-prima2.c
@@ -485,6 +485,20 @@ static const struct sirfsoc_padmux usp0_padmux = {
 
 static const unsigned usp0_pins[] = { 51, 52, 53, 54, 55 };
 
+static const struct sirfsoc_muxmask usp0_uart_nostreamctrl_muxmask[] = {
+	{
+		.group = 1,
+		.mask = BIT(20) | BIT(21),
+	},
+};
+
+static const struct sirfsoc_padmux usp0_uart_nostreamctrl_padmux = {
+	.muxmask_counts = ARRAY_SIZE(usp0_uart_nostreamctrl_muxmask),
+	.muxmask = usp0_uart_nostreamctrl_muxmask,
+};
+
+static const unsigned usp0_uart_nostreamctrl_pins[] = { 52, 53 };
+
 static const struct sirfsoc_muxmask usp1_muxmask[] = {
 	{
 		.group = 1,
@@ -501,6 +515,20 @@ static const struct sirfsoc_padmux usp1_padmux = {
 
 static const unsigned usp1_pins[] = { 56, 57, 58, 59, 60 };
 
+static const struct sirfsoc_muxmask usp1_uart_nostreamctrl_muxmask[] = {
+	{
+		.group = 1,
+		.mask = BIT(25) | BIT(26),
+	},
+};
+
+static const struct sirfsoc_padmux usp1_uart_nostreamctrl_padmux = {
+	.muxmask_counts = ARRAY_SIZE(usp1_uart_nostreamctrl_muxmask),
+	.muxmask = usp1_uart_nostreamctrl_muxmask,
+};
+
+static const unsigned usp1_uart_nostreamctrl_pins[] = { 57, 58 };
+
 static const struct sirfsoc_muxmask usp2_muxmask[] = {
 	{
 		.group = 1,
@@ -520,6 +548,20 @@ static const struct sirfsoc_padmux usp2_padmux = {
 
 static const unsigned usp2_pins[] = { 61, 62, 63, 64, 65 };
 
+static const struct sirfsoc_muxmask usp2_uart_nostreamctrl_muxmask[] = {
+	{
+		.group = 1,
+		.mask = BIT(30) | BIT(31),
+	},
+};
+
+static const struct sirfsoc_padmux usp2_uart_nostreamctrl_padmux = {
+	.muxmask_counts = ARRAY_SIZE(usp2_uart_nostreamctrl_muxmask),
+	.muxmask = usp2_uart_nostreamctrl_muxmask,
+};
+
+static const unsigned usp2_uart_nostreamctrl_pins[] = { 62, 63 };
+
 static const struct sirfsoc_muxmask nand_muxmask[] = {
 	{
 		.group = 2,
@@ -769,8 +811,14 @@ static const struct sirfsoc_pin_group sirfsoc_pin_groups[] = {
 	SIRFSOC_PIN_GROUP("uart2grp", uart2_pins),
 	SIRFSOC_PIN_GROUP("uart2_nostreamctrlgrp", uart2_nostreamctrl_pins),
 	SIRFSOC_PIN_GROUP("usp0grp", usp0_pins),
+	SIRFSOC_PIN_GROUP("usp0_uart_nostreamctrl_grp",
+					usp0_uart_nostreamctrl_pins),
 	SIRFSOC_PIN_GROUP("usp1grp", usp1_pins),
+	SIRFSOC_PIN_GROUP("usp1_uart_nostreamctrl_grp",
+					usp1_uart_nostreamctrl_pins),
 	SIRFSOC_PIN_GROUP("usp2grp", usp2_pins),
+	SIRFSOC_PIN_GROUP("usp2_uart_nostreamctrl_grp",
+					usp2_uart_nostreamctrl_pins),
 	SIRFSOC_PIN_GROUP("i2c0grp", i2c0_pins),
 	SIRFSOC_PIN_GROUP("i2c1grp", i2c1_pins),
 	SIRFSOC_PIN_GROUP("pwm0grp", pwm0_pins),
@@ -809,8 +857,14 @@ static const char * const uart1grp[] = { "uart1grp" };
 static const char * const uart2grp[] = { "uart2grp" };
 static const char * const uart2_nostreamctrlgrp[] = { "uart2_nostreamctrlgrp" };
 static const char * const usp0grp[] = { "usp0grp" };
+static const char * const usp0_uart_nostreamctrl_grp[] =
+					{ "usp0_uart_nostreamctrl_grp" };
 static const char * const usp1grp[] = { "usp1grp" };
+static const char * const usp1_uart_nostreamctrl_grp[] =
+					{ "usp1_uart_nostreamctrl_grp" };
 static const char * const usp2grp[] = { "usp2grp" };
+static const char * const usp2_uart_nostreamctrl_grp[] =
+					{ "usp2_uart_nostreamctrl_grp" };
 static const char * const i2c0grp[] = { "i2c0grp" };
 static const char * const i2c1grp[] = { "i2c1grp" };
 static const char * const pwm0grp[] = { "pwm0grp" };
@@ -849,8 +903,14 @@ static const struct sirfsoc_pmx_func sirfsoc_pmx_functions[] = {
 	SIRFSOC_PMX_FUNCTION("uart2", uart2grp, uart2_padmux),
 	SIRFSOC_PMX_FUNCTION("uart2_nostreamctrl", uart2_nostreamctrlgrp, uart2_nostreamctrl_padmux),
 	SIRFSOC_PMX_FUNCTION("usp0", usp0grp, usp0_padmux),
+	SIRFSOC_PMX_FUNCTION("usp0_uart_nostreamctrl",
+		usp0_uart_nostreamctrl_grp, usp0_uart_nostreamctrl_padmux),
 	SIRFSOC_PMX_FUNCTION("usp1", usp1grp, usp1_padmux),
+	SIRFSOC_PMX_FUNCTION("usp1_uart_nostreamctrl",
+		usp1_uart_nostreamctrl_grp, usp1_uart_nostreamctrl_padmux),
 	SIRFSOC_PMX_FUNCTION("usp2", usp2grp, usp2_padmux),
+	SIRFSOC_PMX_FUNCTION("usp2_uart_nostreamctrl",
+		usp2_uart_nostreamctrl_grp, usp2_uart_nostreamctrl_padmux),
 	SIRFSOC_PMX_FUNCTION("i2c0", i2c0grp, i2c0_padmux),
 	SIRFSOC_PMX_FUNCTION("i2c1", i2c1grp, i2c1_padmux),
 	SIRFSOC_PMX_FUNCTION("pwm0", pwm0grp, pwm0_padmux),
-- 
cgit 


From 6a08a92ec45782e5543addf5f8785e2560a078f6 Mon Sep 17 00:00:00 2001
From: Rong Wang <Rong.Wang@csr.com>
Date: Sun, 29 Sep 2013 22:27:59 +0800
Subject: pinctrl: sirf: add USB1/UART1 pinmux usb/uart share

dn and dp of USB1 can share with UART1(UART1 can route rx,tx to dn and dp pins of USB1).
here we add this pinmux capability.
USB1/UART1 mode selection has dedicated control register in RSC module, here we attach
the register offset of private data of related pin groups.

Signed-off-by: Rong Wang <Rong.Wang@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/atlas6.dtsi         | 12 ++++++++
 arch/arm/boot/dts/prima2.dtsi         | 12 ++++++++
 drivers/pinctrl/sirf/pinctrl-atlas6.c | 56 +++++++++++++++++++++++++++++++++++
 drivers/pinctrl/sirf/pinctrl-prima2.c | 52 ++++++++++++++++++++++++++++++++
 drivers/pinctrl/sirf/pinctrl-sirf.c   |  8 ++---
 drivers/pinctrl/sirf/pinctrl-sirf.h   |  6 ++--
 6 files changed, 140 insertions(+), 6 deletions(-)

diff --git a/arch/arm/boot/dts/atlas6.dtsi b/arch/arm/boot/dts/atlas6.dtsi
index 8678e0c11119..378d4116dbf2 100644
--- a/arch/arm/boot/dts/atlas6.dtsi
+++ b/arch/arm/boot/dts/atlas6.dtsi
@@ -515,6 +515,18 @@
                                                 sirf,function = "usb1_utmi_drvbus";
                                         };
                                 };
+                                usb1_dp_dn_pins_a: usb1_dp_dn@0 {
+                                        usb1_dp_dn {
+                                                sirf,pins = "usb1_dp_dngrp";
+                                                sirf,function = "usb1_dp_dn";
+                                        };
+                                };
+                                uart1_route_io_usb1_pins_a: uart1_route_io_usb1@0 {
+                                        uart1_route_io_usb1 {
+                                                sirf,pins = "uart1_route_io_usb1grp";
+                                                sirf,function = "uart1_route_io_usb1";
+                                        };
+                                };
                                 warm_rst_pins_a: warm_rst@0 {
                                         warm_rst {
                                                 sirf,pins = "warm_rstgrp";
diff --git a/arch/arm/boot/dts/prima2.dtsi b/arch/arm/boot/dts/prima2.dtsi
index 569763a0e788..fb2ffaeaefbc 100644
--- a/arch/arm/boot/dts/prima2.dtsi
+++ b/arch/arm/boot/dts/prima2.dtsi
@@ -533,6 +533,18 @@
                                                 sirf,function = "usb1_utmi_drvbus";
                                         };
                                 };
+                                usb1_dp_dn_pins_a: usb1_dp_dn@0 {
+                                        usb1_dp_dn {
+                                                sirf,pins = "usb1_dp_dngrp";
+                                                sirf,function = "usb1_dp_dn";
+                                        };
+                                };
+                                uart1_route_io_usb1_pins_a: uart1_route_io_usb1@0 {
+                                        uart1_route_io_usb1 {
+                                                sirf,pins = "uart1_route_io_usb1grp";
+                                                sirf,function = "uart1_route_io_usb1";
+                                        };
+                                };
                                 warm_rst_pins_a: warm_rst@0 {
                                         warm_rst {
                                                 sirf,pins = "warm_rstgrp";
diff --git a/drivers/pinctrl/sirf/pinctrl-atlas6.c b/drivers/pinctrl/sirf/pinctrl-atlas6.c
index edf45a6940ca..8ab7898d21be 100644
--- a/drivers/pinctrl/sirf/pinctrl-atlas6.c
+++ b/drivers/pinctrl/sirf/pinctrl-atlas6.c
@@ -122,6 +122,9 @@ static const struct pinctrl_pin_desc sirfsoc_pads[] = {
 	PINCTRL_PIN(100, "ac97_dout"),
 	PINCTRL_PIN(101, "ac97_din"),
 	PINCTRL_PIN(102, "x_rtc_io"),
+
+	PINCTRL_PIN(103, "x_usb1_dp"),
+	PINCTRL_PIN(104, "x_usb1_dn"),
 };
 
 static const struct sirfsoc_muxmask lcd_16bits_sirfsoc_muxmask[] = {
@@ -139,6 +142,7 @@ static const struct sirfsoc_muxmask lcd_16bits_sirfsoc_muxmask[] = {
 static const struct sirfsoc_padmux lcd_16bits_padmux = {
 	.muxmask_counts = ARRAY_SIZE(lcd_16bits_sirfsoc_muxmask),
 	.muxmask = lcd_16bits_sirfsoc_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(4),
 	.funcval = 0,
 };
@@ -164,6 +168,7 @@ static const struct sirfsoc_muxmask lcd_18bits_muxmask[] = {
 static const struct sirfsoc_padmux lcd_18bits_padmux = {
 	.muxmask_counts = ARRAY_SIZE(lcd_18bits_muxmask),
 	.muxmask = lcd_18bits_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(4) | BIT(15),
 	.funcval = 0,
 };
@@ -189,6 +194,7 @@ static const struct sirfsoc_muxmask lcd_24bits_muxmask[] = {
 static const struct sirfsoc_padmux lcd_24bits_padmux = {
 	.muxmask_counts = ARRAY_SIZE(lcd_24bits_muxmask),
 	.muxmask = lcd_24bits_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(4) | BIT(15),
 	.funcval = 0,
 };
@@ -214,6 +220,7 @@ static const struct sirfsoc_muxmask lcdrom_muxmask[] = {
 static const struct sirfsoc_padmux lcdrom_padmux = {
 	.muxmask_counts = ARRAY_SIZE(lcdrom_muxmask),
 	.muxmask = lcdrom_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(4),
 	.funcval = BIT(4),
 };
@@ -237,6 +244,7 @@ static const struct sirfsoc_muxmask uart0_muxmask[] = {
 static const struct sirfsoc_padmux uart0_padmux = {
 	.muxmask_counts = ARRAY_SIZE(uart0_muxmask),
 	.muxmask = uart0_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(9),
 	.funcval = BIT(9),
 };
@@ -284,6 +292,7 @@ static const struct sirfsoc_muxmask uart2_muxmask[] = {
 static const struct sirfsoc_padmux uart2_padmux = {
 	.muxmask_counts = ARRAY_SIZE(uart2_muxmask),
 	.muxmask = uart2_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(10),
 	.funcval = BIT(10),
 };
@@ -317,6 +326,7 @@ static const struct sirfsoc_muxmask sdmmc3_muxmask[] = {
 static const struct sirfsoc_padmux sdmmc3_padmux = {
 	.muxmask_counts = ARRAY_SIZE(sdmmc3_muxmask),
 	.muxmask = sdmmc3_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(7),
 	.funcval = 0,
 };
@@ -336,6 +346,7 @@ static const struct sirfsoc_muxmask spi0_muxmask[] = {
 static const struct sirfsoc_padmux spi0_padmux = {
 	.muxmask_counts = ARRAY_SIZE(spi0_muxmask),
 	.muxmask = spi0_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(7),
 	.funcval = BIT(7),
 };
@@ -352,6 +363,7 @@ static const struct sirfsoc_muxmask cko1_muxmask[] = {
 static const struct sirfsoc_padmux cko1_padmux = {
 	.muxmask_counts = ARRAY_SIZE(cko1_muxmask),
 	.muxmask = cko1_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(3),
 	.funcval = 0,
 };
@@ -371,6 +383,7 @@ static const struct sirfsoc_muxmask i2s_muxmask[] = {
 static const struct sirfsoc_padmux i2s_padmux = {
 	.muxmask_counts = ARRAY_SIZE(i2s_muxmask),
 	.muxmask = i2s_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(3),
 	.funcval = BIT(3),
 };
@@ -390,6 +403,7 @@ static const struct sirfsoc_muxmask i2s_no_din_muxmask[] = {
 static const struct sirfsoc_padmux i2s_no_din_padmux = {
 	.muxmask_counts = ARRAY_SIZE(i2s_no_din_muxmask),
 	.muxmask = i2s_no_din_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(3),
 	.funcval = BIT(3),
 };
@@ -409,6 +423,7 @@ static const struct sirfsoc_muxmask i2s_6chn_muxmask[] = {
 static const struct sirfsoc_padmux i2s_6chn_padmux = {
 	.muxmask_counts = ARRAY_SIZE(i2s_6chn_muxmask),
 	.muxmask = i2s_6chn_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(1) | BIT(3) | BIT(9),
 	.funcval = BIT(1) | BIT(3) | BIT(9),
 };
@@ -439,6 +454,7 @@ static const struct sirfsoc_muxmask spi1_muxmask[] = {
 static const struct sirfsoc_padmux spi1_padmux = {
 	.muxmask_counts = ARRAY_SIZE(spi1_muxmask),
 	.muxmask = spi1_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(16),
 	.funcval = 0,
 };
@@ -455,6 +471,7 @@ static const struct sirfsoc_muxmask sdmmc1_muxmask[] = {
 static const struct sirfsoc_padmux sdmmc1_padmux = {
 	.muxmask_counts = ARRAY_SIZE(sdmmc1_muxmask),
 	.muxmask = sdmmc1_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(5),
 	.funcval = BIT(5),
 };
@@ -471,6 +488,7 @@ static const struct sirfsoc_muxmask gps_muxmask[] = {
 static const struct sirfsoc_padmux gps_padmux = {
 	.muxmask_counts = ARRAY_SIZE(gps_muxmask),
 	.muxmask = gps_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(13),
 	.funcval = 0,
 };
@@ -487,6 +505,7 @@ static const struct sirfsoc_muxmask sdmmc5_muxmask[] = {
 static const struct sirfsoc_padmux sdmmc5_padmux = {
 	.muxmask_counts = ARRAY_SIZE(sdmmc5_muxmask),
 	.muxmask = sdmmc5_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(13),
 	.funcval = BIT(13),
 };
@@ -503,6 +522,7 @@ static const struct sirfsoc_muxmask usp0_muxmask[] = {
 static const struct sirfsoc_padmux usp0_padmux = {
 	.muxmask_counts = ARRAY_SIZE(usp0_muxmask),
 	.muxmask = usp0_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(1) | BIT(2) | BIT(9),
 	.funcval = 0,
 };
@@ -535,6 +555,7 @@ static const struct sirfsoc_muxmask usp1_muxmask[] = {
 static const struct sirfsoc_padmux usp1_padmux = {
 	.muxmask_counts = ARRAY_SIZE(usp1_muxmask),
 	.muxmask = usp1_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(16),
 	.funcval = BIT(16),
 };
@@ -554,6 +575,7 @@ static const struct sirfsoc_muxmask nand_muxmask[] = {
 static const struct sirfsoc_padmux nand_padmux = {
 	.muxmask_counts = ARRAY_SIZE(nand_muxmask),
 	.muxmask = nand_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(5) | BIT(19),
 	.funcval = 0,
 };
@@ -570,6 +592,7 @@ static const struct sirfsoc_muxmask sdmmc0_muxmask[] = {
 static const struct sirfsoc_padmux sdmmc0_padmux = {
 	.muxmask_counts = ARRAY_SIZE(sdmmc0_muxmask),
 	.muxmask = sdmmc0_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(5) | BIT(19),
 	.funcval = BIT(19),
 };
@@ -586,6 +609,7 @@ static const struct sirfsoc_muxmask sdmmc2_muxmask[] = {
 static const struct sirfsoc_padmux sdmmc2_padmux = {
 	.muxmask_counts = ARRAY_SIZE(sdmmc2_muxmask),
 	.muxmask = sdmmc2_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(11),
 	.funcval = 0,
 };
@@ -602,6 +626,7 @@ static const struct sirfsoc_muxmask sdmmc2_nowp_muxmask[] = {
 static const struct sirfsoc_padmux sdmmc2_nowp_padmux = {
 	.muxmask_counts = ARRAY_SIZE(sdmmc2_nowp_muxmask),
 	.muxmask = sdmmc2_nowp_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(11),
 	.funcval = 0,
 };
@@ -634,6 +659,7 @@ static const struct sirfsoc_muxmask vip_muxmask[] = {
 static const struct sirfsoc_padmux vip_padmux = {
 	.muxmask_counts = ARRAY_SIZE(vip_muxmask),
 	.muxmask = vip_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(18),
 	.funcval = BIT(18),
 };
@@ -654,6 +680,7 @@ static const struct sirfsoc_muxmask vip_noupli_muxmask[] = {
 static const struct sirfsoc_padmux vip_noupli_padmux = {
 	.muxmask_counts = ARRAY_SIZE(vip_noupli_muxmask),
 	.muxmask = vip_noupli_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(15),
 	.funcval = BIT(15),
 };
@@ -684,6 +711,7 @@ static const struct sirfsoc_muxmask i2c1_muxmask[] = {
 static const struct sirfsoc_padmux i2c1_padmux = {
 	.muxmask_counts = ARRAY_SIZE(i2c1_muxmask),
 	.muxmask = i2c1_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(16),
 	.funcval = 0,
 };
@@ -700,6 +728,7 @@ static const struct sirfsoc_muxmask pwm0_muxmask[] = {
 static const struct sirfsoc_padmux pwm0_padmux = {
 	.muxmask_counts = ARRAY_SIZE(pwm0_muxmask),
 	.muxmask = pwm0_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(12),
 	.funcval = 0,
 };
@@ -772,6 +801,7 @@ static const struct sirfsoc_muxmask warm_rst_muxmask[] = {
 static const struct sirfsoc_padmux warm_rst_padmux = {
 	.muxmask_counts = ARRAY_SIZE(warm_rst_muxmask),
 	.muxmask = warm_rst_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(4),
 	.funcval = 0,
 };
@@ -789,6 +819,7 @@ static const struct sirfsoc_muxmask usb0_upli_drvbus_muxmask[] = {
 static const struct sirfsoc_padmux usb0_upli_drvbus_padmux = {
 	.muxmask_counts = ARRAY_SIZE(usb0_upli_drvbus_muxmask),
 	.muxmask = usb0_upli_drvbus_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(18),
 	.funcval = 0,
 };
@@ -805,12 +836,31 @@ static const struct sirfsoc_muxmask usb1_utmi_drvbus_muxmask[] = {
 static const struct sirfsoc_padmux usb1_utmi_drvbus_padmux = {
 	.muxmask_counts = ARRAY_SIZE(usb1_utmi_drvbus_muxmask),
 	.muxmask = usb1_utmi_drvbus_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(11),
 	.funcval = BIT(11), /* refer to PAD_UTMI_DRVVBUS1_ENABLE */
 };
 
 static const unsigned usb1_utmi_drvbus_pins[] = { 28 };
 
+static const struct sirfsoc_padmux usb1_dp_dn_padmux = {
+	.muxmask_counts = 0,
+	.ctrlreg = SIRFSOC_RSC_USB_UART_SHARE,
+	.funcmask = BIT(2),
+	.funcval = BIT(2),
+};
+
+static const unsigned usb1_dp_dn_pins[] = { 103, 104 };
+
+static const struct sirfsoc_padmux uart1_route_io_usb1_padmux = {
+	.muxmask_counts = 0,
+	.ctrlreg = SIRFSOC_RSC_USB_UART_SHARE,
+	.funcmask = BIT(2),
+	.funcval = 0,
+};
+
+static const unsigned uart1_route_io_usb1_pins[] = { 103, 104 };
+
 static const struct sirfsoc_muxmask pulse_count_muxmask[] = {
 	{
 		.group = 0,
@@ -859,6 +909,8 @@ static const struct sirfsoc_pin_group sirfsoc_pin_groups[] = {
 	SIRFSOC_PIN_GROUP("sdmmc5grp", sdmmc5_pins),
 	SIRFSOC_PIN_GROUP("usb0_upli_drvbusgrp", usb0_upli_drvbus_pins),
 	SIRFSOC_PIN_GROUP("usb1_utmi_drvbusgrp", usb1_utmi_drvbus_pins),
+	SIRFSOC_PIN_GROUP("usb1_dp_dngrp", usb1_dp_dn_pins),
+	SIRFSOC_PIN_GROUP("uart1_route_io_usb1grp", uart1_route_io_usb1_pins),
 	SIRFSOC_PIN_GROUP("pulse_countgrp", pulse_count_pins),
 	SIRFSOC_PIN_GROUP("i2sgrp", i2s_pins),
 	SIRFSOC_PIN_GROUP("i2s_no_dingrp", i2s_no_din_pins),
@@ -903,6 +955,8 @@ static const char * const sdmmc5grp[] = { "sdmmc5grp" };
 static const char * const sdmmc2_nowpgrp[] = { "sdmmc2_nowpgrp" };
 static const char * const usb0_upli_drvbusgrp[] = { "usb0_upli_drvbusgrp" };
 static const char * const usb1_utmi_drvbusgrp[] = { "usb1_utmi_drvbusgrp" };
+static const char * const usb1_dp_dngrp[] = { "usb1_dp_dngrp" };
+static const char * const uart1_route_io_usb1grp[] = { "uart1_route_io_usb1grp" };
 static const char * const pulse_countgrp[] = { "pulse_countgrp" };
 static const char * const i2sgrp[] = { "i2sgrp" };
 static const char * const i2s_no_dingrp[] = { "i2s_no_dingrp" };
@@ -949,6 +1003,8 @@ static const struct sirfsoc_pmx_func sirfsoc_pmx_functions[] = {
 	SIRFSOC_PMX_FUNCTION("sdmmc2_nowp", sdmmc2_nowpgrp, sdmmc2_nowp_padmux),
 	SIRFSOC_PMX_FUNCTION("usb0_upli_drvbus", usb0_upli_drvbusgrp, usb0_upli_drvbus_padmux),
 	SIRFSOC_PMX_FUNCTION("usb1_utmi_drvbus", usb1_utmi_drvbusgrp, usb1_utmi_drvbus_padmux),
+	SIRFSOC_PMX_FUNCTION("usb1_dp_dn", usb1_dp_dngrp, usb1_dp_dn_padmux),
+	SIRFSOC_PMX_FUNCTION("uart1_route_io_usb1", uart1_route_io_usb1grp, uart1_route_io_usb1_padmux),
 	SIRFSOC_PMX_FUNCTION("pulse_count", pulse_countgrp, pulse_count_padmux),
 	SIRFSOC_PMX_FUNCTION("i2s", i2sgrp, i2s_padmux),
 	SIRFSOC_PMX_FUNCTION("i2s_no_din", i2s_no_dingrp, i2s_no_din_padmux),
diff --git a/drivers/pinctrl/sirf/pinctrl-prima2.c b/drivers/pinctrl/sirf/pinctrl-prima2.c
index 241d83992692..050777be0f1e 100644
--- a/drivers/pinctrl/sirf/pinctrl-prima2.c
+++ b/drivers/pinctrl/sirf/pinctrl-prima2.c
@@ -126,6 +126,9 @@ static const struct pinctrl_pin_desc sirfsoc_pads[] = {
 	PINCTRL_PIN(112, "x_ldd[13]"),
 	PINCTRL_PIN(113, "x_ldd[14]"),
 	PINCTRL_PIN(114, "x_ldd[15]"),
+
+	PINCTRL_PIN(115, "x_usb1_dp"),
+	PINCTRL_PIN(116, "x_usb1_dn"),
 };
 
 static const struct sirfsoc_muxmask lcd_16bits_sirfsoc_muxmask[] = {
@@ -143,6 +146,7 @@ static const struct sirfsoc_muxmask lcd_16bits_sirfsoc_muxmask[] = {
 static const struct sirfsoc_padmux lcd_16bits_padmux = {
 	.muxmask_counts = ARRAY_SIZE(lcd_16bits_sirfsoc_muxmask),
 	.muxmask = lcd_16bits_sirfsoc_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(4),
 	.funcval = 0,
 };
@@ -168,6 +172,7 @@ static const struct sirfsoc_muxmask lcd_18bits_muxmask[] = {
 static const struct sirfsoc_padmux lcd_18bits_padmux = {
 	.muxmask_counts = ARRAY_SIZE(lcd_18bits_muxmask),
 	.muxmask = lcd_18bits_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(4),
 	.funcval = 0,
 };
@@ -193,6 +198,7 @@ static const struct sirfsoc_muxmask lcd_24bits_muxmask[] = {
 static const struct sirfsoc_padmux lcd_24bits_padmux = {
 	.muxmask_counts = ARRAY_SIZE(lcd_24bits_muxmask),
 	.muxmask = lcd_24bits_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(4),
 	.funcval = 0,
 };
@@ -218,6 +224,7 @@ static const struct sirfsoc_muxmask lcdrom_muxmask[] = {
 static const struct sirfsoc_padmux lcdrom_padmux = {
 	.muxmask_counts = ARRAY_SIZE(lcdrom_muxmask),
 	.muxmask = lcdrom_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(4),
 	.funcval = BIT(4),
 };
@@ -238,6 +245,7 @@ static const struct sirfsoc_muxmask uart0_muxmask[] = {
 static const struct sirfsoc_padmux uart0_padmux = {
 	.muxmask_counts = ARRAY_SIZE(uart0_muxmask),
 	.muxmask = uart0_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(9),
 	.funcval = BIT(9),
 };
@@ -282,6 +290,7 @@ static const struct sirfsoc_muxmask uart2_muxmask[] = {
 static const struct sirfsoc_padmux uart2_padmux = {
 	.muxmask_counts = ARRAY_SIZE(uart2_muxmask),
 	.muxmask = uart2_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(10),
 	.funcval = BIT(10),
 };
@@ -315,6 +324,7 @@ static const struct sirfsoc_muxmask sdmmc3_muxmask[] = {
 static const struct sirfsoc_padmux sdmmc3_padmux = {
 	.muxmask_counts = ARRAY_SIZE(sdmmc3_muxmask),
 	.muxmask = sdmmc3_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(7),
 	.funcval = 0,
 };
@@ -331,6 +341,7 @@ static const struct sirfsoc_muxmask spi0_muxmask[] = {
 static const struct sirfsoc_padmux spi0_padmux = {
 	.muxmask_counts = ARRAY_SIZE(spi0_muxmask),
 	.muxmask = spi0_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(7),
 	.funcval = BIT(7),
 };
@@ -361,6 +372,7 @@ static const struct sirfsoc_muxmask cko1_muxmask[] = {
 static const struct sirfsoc_padmux cko1_padmux = {
 	.muxmask_counts = ARRAY_SIZE(cko1_muxmask),
 	.muxmask = cko1_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(3),
 	.funcval = 0,
 };
@@ -379,6 +391,7 @@ static const struct sirfsoc_muxmask i2s_muxmask[] = {
 static const struct sirfsoc_padmux i2s_padmux = {
 	.muxmask_counts = ARRAY_SIZE(i2s_muxmask),
 	.muxmask = i2s_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(3) | BIT(9),
 	.funcval = BIT(3),
 };
@@ -395,6 +408,7 @@ static const struct sirfsoc_muxmask ac97_muxmask[] = {
 static const struct sirfsoc_padmux ac97_padmux = {
 	.muxmask_counts = ARRAY_SIZE(ac97_muxmask),
 	.muxmask = ac97_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(8),
 	.funcval = 0,
 };
@@ -411,6 +425,7 @@ static const struct sirfsoc_muxmask spi1_muxmask[] = {
 static const struct sirfsoc_padmux spi1_padmux = {
 	.muxmask_counts = ARRAY_SIZE(spi1_muxmask),
 	.muxmask = spi1_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(8),
 	.funcval = BIT(8),
 };
@@ -441,6 +456,7 @@ static const struct sirfsoc_muxmask gps_muxmask[] = {
 static const struct sirfsoc_padmux gps_padmux = {
 	.muxmask_counts = ARRAY_SIZE(gps_muxmask),
 	.muxmask = gps_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(12) | BIT(13) | BIT(14),
 	.funcval = BIT(12),
 };
@@ -463,6 +479,7 @@ static const struct sirfsoc_muxmask sdmmc5_muxmask[] = {
 static const struct sirfsoc_padmux sdmmc5_padmux = {
 	.muxmask_counts = ARRAY_SIZE(sdmmc5_muxmask),
 	.muxmask = sdmmc5_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(13) | BIT(14),
 	.funcval = BIT(13) | BIT(14),
 };
@@ -479,6 +496,7 @@ static const struct sirfsoc_muxmask usp0_muxmask[] = {
 static const struct sirfsoc_padmux usp0_padmux = {
 	.muxmask_counts = ARRAY_SIZE(usp0_muxmask),
 	.muxmask = usp0_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(1) | BIT(2) | BIT(6) | BIT(9),
 	.funcval = 0,
 };
@@ -509,6 +527,7 @@ static const struct sirfsoc_muxmask usp1_muxmask[] = {
 static const struct sirfsoc_padmux usp1_padmux = {
 	.muxmask_counts = ARRAY_SIZE(usp1_muxmask),
 	.muxmask = usp1_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(1) | BIT(9) | BIT(10) | BIT(11),
 	.funcval = 0,
 };
@@ -542,6 +561,7 @@ static const struct sirfsoc_muxmask usp2_muxmask[] = {
 static const struct sirfsoc_padmux usp2_padmux = {
 	.muxmask_counts = ARRAY_SIZE(usp2_muxmask),
 	.muxmask = usp2_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(13) | BIT(14),
 	.funcval = 0,
 };
@@ -572,6 +592,7 @@ static const struct sirfsoc_muxmask nand_muxmask[] = {
 static const struct sirfsoc_padmux nand_padmux = {
 	.muxmask_counts = ARRAY_SIZE(nand_muxmask),
 	.muxmask = nand_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(5),
 	.funcval = 0,
 };
@@ -580,6 +601,7 @@ static const unsigned nand_pins[] = { 64, 65, 92, 93, 94 };
 
 static const struct sirfsoc_padmux sdmmc0_padmux = {
 	.muxmask_counts = 0,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(5),
 	.funcval = 0,
 };
@@ -596,6 +618,7 @@ static const struct sirfsoc_muxmask sdmmc2_muxmask[] = {
 static const struct sirfsoc_padmux sdmmc2_padmux = {
 	.muxmask_counts = ARRAY_SIZE(sdmmc2_muxmask),
 	.muxmask = sdmmc2_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(5),
 	.funcval = BIT(5),
 };
@@ -628,6 +651,7 @@ static const struct sirfsoc_muxmask vip_muxmask[] = {
 static const struct sirfsoc_padmux vip_padmux = {
 	.muxmask_counts = ARRAY_SIZE(vip_muxmask),
 	.muxmask = vip_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(0),
 	.funcval = 0,
 };
@@ -677,6 +701,7 @@ static const struct sirfsoc_muxmask viprom_muxmask[] = {
 static const struct sirfsoc_padmux viprom_padmux = {
 	.muxmask_counts = ARRAY_SIZE(viprom_muxmask),
 	.muxmask = viprom_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(0),
 	.funcval = BIT(0),
 };
@@ -693,6 +718,7 @@ static const struct sirfsoc_muxmask pwm0_muxmask[] = {
 static const struct sirfsoc_padmux pwm0_padmux = {
 	.muxmask_counts = ARRAY_SIZE(pwm0_muxmask),
 	.muxmask = pwm0_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(12),
 	.funcval = 0,
 };
@@ -764,6 +790,7 @@ static const struct sirfsoc_muxmask usb0_utmi_drvbus_muxmask[] = {
 static const struct sirfsoc_padmux usb0_utmi_drvbus_padmux = {
 	.muxmask_counts = ARRAY_SIZE(usb0_utmi_drvbus_muxmask),
 	.muxmask = usb0_utmi_drvbus_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(6),
 	.funcval = BIT(6), /* refer to PAD_UTMI_DRVVBUS0_ENABLE */
 };
@@ -780,12 +807,31 @@ static const struct sirfsoc_muxmask usb1_utmi_drvbus_muxmask[] = {
 static const struct sirfsoc_padmux usb1_utmi_drvbus_padmux = {
 	.muxmask_counts = ARRAY_SIZE(usb1_utmi_drvbus_muxmask),
 	.muxmask = usb1_utmi_drvbus_muxmask,
+	.ctrlreg = SIRFSOC_RSC_PIN_MUX,
 	.funcmask = BIT(11),
 	.funcval = BIT(11), /* refer to PAD_UTMI_DRVVBUS1_ENABLE */
 };
 
 static const unsigned usb1_utmi_drvbus_pins[] = { 59 };
 
+static const struct sirfsoc_padmux usb1_dp_dn_padmux = {
+	.muxmask_counts = 0,
+	.ctrlreg = SIRFSOC_RSC_USB_UART_SHARE,
+	.funcmask = BIT(2),
+	.funcval = BIT(2),
+};
+
+static const unsigned usb1_dp_dn_pins[] = { 115, 116 };
+
+static const struct sirfsoc_padmux uart1_route_io_usb1_padmux = {
+	.muxmask_counts = 0,
+	.ctrlreg = SIRFSOC_RSC_USB_UART_SHARE,
+	.funcmask = BIT(2),
+	.funcval = 0,
+};
+
+static const unsigned uart1_route_io_usb1_pins[] = { 115, 116 };
+
 static const struct sirfsoc_muxmask pulse_count_muxmask[] = {
 	{
 		.group = 0,
@@ -838,6 +884,8 @@ static const struct sirfsoc_pin_group sirfsoc_pin_groups[] = {
 	SIRFSOC_PIN_GROUP("sdmmc5grp", sdmmc5_pins),
 	SIRFSOC_PIN_GROUP("usb0_utmi_drvbusgrp", usb0_utmi_drvbus_pins),
 	SIRFSOC_PIN_GROUP("usb1_utmi_drvbusgrp", usb1_utmi_drvbus_pins),
+	SIRFSOC_PIN_GROUP("usb1_dp_dngrp", usb1_dp_dn_pins),
+	SIRFSOC_PIN_GROUP("uart1_route_io_usb1grp", uart1_route_io_usb1_pins),
 	SIRFSOC_PIN_GROUP("pulse_countgrp", pulse_count_pins),
 	SIRFSOC_PIN_GROUP("i2sgrp", i2s_pins),
 	SIRFSOC_PIN_GROUP("ac97grp", ac97_pins),
@@ -884,6 +932,8 @@ static const char * const sdmmc4grp[] = { "sdmmc4grp" };
 static const char * const sdmmc5grp[] = { "sdmmc5grp" };
 static const char * const usb0_utmi_drvbusgrp[] = { "usb0_utmi_drvbusgrp" };
 static const char * const usb1_utmi_drvbusgrp[] = { "usb1_utmi_drvbusgrp" };
+static const char * const usb1_dp_dngrp[] = { "usb1_dp_dngrp" };
+static const char * const uart1_route_io_usb1grp[] = { "uart1_route_io_usb1grp" };
 static const char * const pulse_countgrp[] = { "pulse_countgrp" };
 static const char * const i2sgrp[] = { "i2sgrp" };
 static const char * const ac97grp[] = { "ac97grp" };
@@ -930,6 +980,8 @@ static const struct sirfsoc_pmx_func sirfsoc_pmx_functions[] = {
 	SIRFSOC_PMX_FUNCTION("sdmmc5", sdmmc5grp, sdmmc5_padmux),
 	SIRFSOC_PMX_FUNCTION("usb0_utmi_drvbus", usb0_utmi_drvbusgrp, usb0_utmi_drvbus_padmux),
 	SIRFSOC_PMX_FUNCTION("usb1_utmi_drvbus", usb1_utmi_drvbusgrp, usb1_utmi_drvbus_padmux),
+	SIRFSOC_PMX_FUNCTION("usb1_dp_dn", usb1_dp_dngrp, usb1_dp_dn_padmux),
+	SIRFSOC_PMX_FUNCTION("uart1_route_io_usb1", uart1_route_io_usb1grp, uart1_route_io_usb1_padmux),
 	SIRFSOC_PMX_FUNCTION("pulse_count", pulse_countgrp, pulse_count_padmux),
 	SIRFSOC_PMX_FUNCTION("i2s", i2sgrp, i2s_padmux),
 	SIRFSOC_PMX_FUNCTION("ac97", ac97grp, ac97_padmux),
diff --git a/drivers/pinctrl/sirf/pinctrl-sirf.c b/drivers/pinctrl/sirf/pinctrl-sirf.c
index 26f946af7933..b81e388c50de 100644
--- a/drivers/pinctrl/sirf/pinctrl-sirf.c
+++ b/drivers/pinctrl/sirf/pinctrl-sirf.c
@@ -166,12 +166,12 @@ static void sirfsoc_pinmux_endisable(struct sirfsoc_pmx *spmx, unsigned selector
 
 	if (mux->funcmask && enable) {
 		u32 func_en_val;
+
 		func_en_val =
-			readl(spmx->rsc_virtbase + SIRFSOC_RSC_PIN_MUX);
+			readl(spmx->rsc_virtbase + mux->ctrlreg);
 		func_en_val =
-			(func_en_val & ~mux->funcmask) | (mux->
-				funcval);
-		writel(func_en_val, spmx->rsc_virtbase + SIRFSOC_RSC_PIN_MUX);
+			(func_en_val & ~mux->funcmask) | (mux->funcval);
+		writel(func_en_val, spmx->rsc_virtbase + mux->ctrlreg);
 	}
 }
 
diff --git a/drivers/pinctrl/sirf/pinctrl-sirf.h b/drivers/pinctrl/sirf/pinctrl-sirf.h
index 17cc108510ba..d7f16b499ad9 100644
--- a/drivers/pinctrl/sirf/pinctrl-sirf.h
+++ b/drivers/pinctrl/sirf/pinctrl-sirf.h
@@ -9,8 +9,9 @@
 #ifndef __PINMUX_SIRF_H__
 #define __PINMUX_SIRF_H__
 
-#define SIRFSOC_NUM_PADS    622
-#define SIRFSOC_RSC_PIN_MUX 0x4
+#define SIRFSOC_NUM_PADS		622
+#define SIRFSOC_RSC_USB_UART_SHARE	0
+#define SIRFSOC_RSC_PIN_MUX		0x4
 
 #define SIRFSOC_GPIO_PAD_EN(g)		((g)*0x100 + 0x84)
 #define SIRFSOC_GPIO_PAD_EN_CLR(g)	((g)*0x100 + 0x90)
@@ -61,6 +62,7 @@ struct sirfsoc_padmux {
 	unsigned long muxmask_counts;
 	const struct sirfsoc_muxmask *muxmask;
 	/* RSC_PIN_MUX set */
+	unsigned long ctrlreg;
 	unsigned long funcmask;
 	unsigned long funcval;
 };
-- 
cgit 


From fe1811438a2a229e93beaefa69481d72652795e5 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
Date: Mon, 7 Oct 2013 16:27:55 -0700
Subject: cfg80211: fix nl80211.h documentation for DFS enum states

The names are prefixed incorrectly on the documentation.

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
[also remove spurious blank line]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 include/uapi/linux/nl80211.h | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index fde2c021b26d..a58ea652cc24 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -3860,13 +3860,12 @@ enum nl80211_radar_event {
  *
  * Channel states used by the DFS code.
  *
- * @IEEE80211_DFS_USABLE: The channel can be used, but channel availability
+ * @NL80211_DFS_USABLE: The channel can be used, but channel availability
  *	check (CAC) must be performed before using it for AP or IBSS.
- * @IEEE80211_DFS_UNAVAILABLE: A radar has been detected on this channel, it
+ * @NL80211_DFS_UNAVAILABLE: A radar has been detected on this channel, it
  *	is therefore marked as not available.
- * @IEEE80211_DFS_AVAILABLE: The channel has been CAC checked and is available.
+ * @NL80211_DFS_AVAILABLE: The channel has been CAC checked and is available.
  */
-
 enum nl80211_dfs_state {
 	NL80211_DFS_USABLE,
 	NL80211_DFS_UNAVAILABLE,
-- 
cgit 


From aa7da564cab718d04c77e3a3c73926473e7a94f7 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 7 Oct 2013 18:27:38 -0700
Subject: spi: convert bus code to use dev_groups

The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the spi bus code to use the
correct field.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 1cd491f79422..7f8057f3433a 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -58,11 +58,13 @@ modalias_show(struct device *dev, struct device_attribute *a, char *buf)
 
 	return sprintf(buf, "%s%s\n", SPI_MODULE_PREFIX, spi->modalias);
 }
+static DEVICE_ATTR_RO(modalias);
 
-static struct device_attribute spi_dev_attrs[] = {
-	__ATTR_RO(modalias),
-	__ATTR_NULL,
+static struct attribute *spi_dev_attrs[] = {
+	&dev_attr_modalias.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(spi_dev);
 
 /* modalias support makes "modprobe $MODALIAS" new-style hotplug work,
  * and the sysfs version makes coldplug work too.
@@ -229,7 +231,7 @@ static const struct dev_pm_ops spi_pm = {
 
 struct bus_type spi_bus_type = {
 	.name		= "spi",
-	.dev_attrs	= spi_dev_attrs,
+	.dev_groups	= spi_dev_groups,
 	.match		= spi_match_device,
 	.uevent		= spi_uevent,
 	.pm		= &spi_pm,
-- 
cgit 


From 01ed6632a554dfdf4a9fc3c593ce4ff7255ed161 Mon Sep 17 00:00:00 2001
From: Oliver Schinagl <oliver@schinagl.nl>
Date: Tue, 8 Oct 2013 10:22:32 +0200
Subject: ARM: sunxi: dts: Add support for the cubieboard3, the CubieTruck

Cubietech introduced a new cubieboard, the CubieTruck. This board added
more output connectors and features 2 GiB of RAM and a Gigabit PHY.

Tested are are uart0 and LEDS which both work as expected.

Signed-off-by: Oliver Schinagl <oliver@schinagl.nl>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 arch/arm/boot/dts/Makefile                 |  1 +
 arch/arm/boot/dts/sun7i-a20-cubietruck.dts | 63 ++++++++++++++++++++++++++++++
 2 files changed, 64 insertions(+)
 create mode 100644 arch/arm/boot/dts/sun7i-a20-cubietruck.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index cc0f1fb61753..171e6c7bb1f2 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -232,6 +232,7 @@ dtb-$(CONFIG_ARCH_SUNXI) += \
 	sun5i-a13-olinuxino.dtb \
 	sun6i-a31-colombus.dtb \
 	sun7i-a20-cubieboard2.dtb \
+	sun7i-a20-cubietruck.dtb \
 	sun7i-a20-olinuxino-micro.dtb
 dtb-$(CONFIG_ARCH_TEGRA) += tegra20-harmony.dtb \
 	tegra20-iris-512.dtb \
diff --git a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
new file mode 100644
index 000000000000..8a1009d6c829
--- /dev/null
+++ b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2013 Oliver Schinagl
+ *
+ * Oliver Schinagl <oliver@schinagl.nl>
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/dts-v1/;
+/include/ "sun7i-a20.dtsi"
+
+/ {
+	model = "Cubietech Cubietruck";
+	compatible = "cubietech,cubietruck", "allwinner,sun7i-a20";
+
+	soc@01c00000 {
+		pinctrl@01c20800 {
+			led_pins_cubietruck: led_pins@0 {
+				allwinner,pins = "PH7", "PH11", "PH20", "PH21";
+				allwinner,function = "gpio_out";
+				allwinner,drive = <0>;
+				allwinner,pull = <0>;
+			};
+		};
+
+		uart0: serial@01c28000 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&uart0_pins_a>;
+			status = "okay";
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		pinctrl-names = "default";
+		pinctrl-0 = <&led_pins_cubietruck>;
+
+		blue {
+			label = "cubietruck:blue:usr";
+			gpios = <&pio 7 21 0>;
+		};
+
+		orange {
+			label = "cubietruck:orange:usr";
+			gpios = <&pio 7 20 0>;
+		};
+
+		white {
+			label = "cubietruck:white:usr";
+			gpios = <&pio 7 11 0>;
+		};
+
+		green {
+			label = "cubietruck:green:usr";
+			gpios = <&pio 7 7 0>;
+		};
+	};
+};
-- 
cgit 


From 2ce4ec7a076203f39016553b6c51248f9c721071 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Wed, 25 Sep 2013 21:50:09 +0300
Subject: ARM: sunxi: Add a defconfig for the Allwinner SoCs

So far, the Allwinner SoCs were only supported using the
multi_v7_defconfig. Add a defconfig of our own to have one a bit more
tailor-made.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 arch/arm/configs/sunxi_defconfig | 61 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 arch/arm/configs/sunxi_defconfig

diff --git a/arch/arm/configs/sunxi_defconfig b/arch/arm/configs/sunxi_defconfig
new file mode 100644
index 000000000000..d57a85badb5e
--- /dev/null
+++ b/arch/arm/configs/sunxi_defconfig
@@ -0,0 +1,61 @@
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_ARCH_SUNXI=y
+CONFIG_SMP=y
+CONFIG_AEABI=y
+CONFIG_HIGHMEM=y
+CONFIG_HIGHPTE=y
+CONFIG_VFP=y
+CONFIG_NEON=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+# CONFIG_INET_DIAG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_WIRELESS is not set
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_NETDEVICES=y
+CONFIG_SUN4I_EMAC=y
+# CONFIG_NET_CADENCE is not set
+# CONFIG_NET_VENDOR_BROADCOM is not set
+# CONFIG_NET_VENDOR_CIRRUS is not set
+# CONFIG_NET_VENDOR_FARADAY is not set
+# CONFIG_NET_VENDOR_INTEL is not set
+# CONFIG_NET_VENDOR_MARVELL is not set
+# CONFIG_NET_VENDOR_MICREL is not set
+# CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_SEEQ is not set
+# CONFIG_NET_VENDOR_SMSC is not set
+# CONFIG_NET_VENDOR_STMICRO is not set
+# CONFIG_NET_VENDOR_WIZNET is not set
+# CONFIG_WLAN is not set
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=8
+CONFIG_SERIAL_8250_RUNTIME_UARTS=8
+CONFIG_SERIAL_8250_DW=y
+CONFIG_I2C=y
+# CONFIG_I2C_COMPAT is not set
+CONFIG_I2C_CHARDEV=y
+CONFIG_I2C_MV64XXX=y
+CONFIG_GPIO_SYSFS=y
+# CONFIG_HWMON is not set
+CONFIG_WATCHDOG=y
+CONFIG_SUNXI_WATCHDOG=y
+# CONFIG_USB_SUPPORT is not set
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
+CONFIG_COMMON_CLK_DEBUG=y
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_NLS=y
-- 
cgit 


From a047914e7f123074bc8ee6f40e4502111a1b4cc4 Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Wed, 2 Oct 2013 17:07:12 +0530
Subject: pinctrl: palmas: remove pin config BIAS_PULL_PIN_DEFAULT support

Palmas devices do not support the default bias configuration
and hence removing this option from valid pin config parameters.

Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt | 2 +-
 drivers/pinctrl/pinctrl-palmas.c                             | 3 ---
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt
index 734d9b04d533..caf297bee1fb 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-palmas.txt
@@ -41,7 +41,7 @@ pinctrl-bindings.txt:
 
 Required: pins
 Options: function, bias-disable, bias-pull-up, bias-pull-down,
-	 bias-pin-default, drive-open-drain.
+	 drive-open-drain.
 
 Note that many of these properties are only valid for certain specific pins.
 See the Palmas device datasheet for complete details regarding which pins
diff --git a/drivers/pinctrl/pinctrl-palmas.c b/drivers/pinctrl/pinctrl-palmas.c
index 61643815e73e..f13d0e78a41c 100644
--- a/drivers/pinctrl/pinctrl-palmas.c
+++ b/drivers/pinctrl/pinctrl-palmas.c
@@ -891,9 +891,6 @@ static int palmas_pinconf_set(struct pinctrl_dev *pctldev,
 		param = pinconf_to_config_param(configs[i]);
 		param_val = pinconf_to_config_argument(configs[i]);
 
-		if (param == PIN_CONFIG_BIAS_PULL_PIN_DEFAULT)
-			continue;
-
 		switch (param) {
 		case PIN_CONFIG_BIAS_DISABLE:
 		case PIN_CONFIG_BIAS_PULL_UP:
-- 
cgit 


From fd9c4864a749ba1079fd73bf8394bc15d5c2c892 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Fri, 4 Oct 2013 08:13:19 +0200
Subject: ath10k: fix printf format string

size_t corresponds to %zu not %d. Compiler was
complaining about it.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 7b5dd09fab67..bf85d34e51c4 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -402,7 +402,7 @@ static int ath10k_core_fetch_firmware_api_n(struct ath10k *ar, const char *name)
 	magic_len = strlen(ATH10K_FIRMWARE_MAGIC) + 1;
 
 	if (len < magic_len) {
-		ath10k_err("firmware image too small to contain magic: %d\n",
+		ath10k_err("firmware image too small to contain magic: %zu\n",
 			   len);
 		return -EINVAL;
 	}
@@ -429,7 +429,7 @@ static int ath10k_core_fetch_firmware_api_n(struct ath10k *ar, const char *name)
 		data += sizeof(*hdr);
 
 		if (len < ie_len) {
-			ath10k_err("Invalid length for FW IE %d (%d < %d)\n",
+			ath10k_err("Invalid length for FW IE %d (%zu < %zu)\n",
 				   ie_id, len, ie_len);
 			return -EINVAL;
 		}
-- 
cgit 


From 9bab1cc010bf07aed12e3f738528c2f05b53db55 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Fri, 4 Oct 2013 08:13:20 +0200
Subject: ath10k: fix possible memory leak in new FW loading

Some failpaths did `return` instead of a `goto`
leaking requested firmware.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index bf85d34e51c4..5acb4048b008 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -404,12 +404,14 @@ static int ath10k_core_fetch_firmware_api_n(struct ath10k *ar, const char *name)
 	if (len < magic_len) {
 		ath10k_err("firmware image too small to contain magic: %zu\n",
 			   len);
-		return -EINVAL;
+		ret = -EINVAL;
+		goto err;
 	}
 
 	if (memcmp(data, ATH10K_FIRMWARE_MAGIC, magic_len) != 0) {
 		ath10k_err("Invalid firmware magic\n");
-		return -EINVAL;
+		ret = -EINVAL;
+		goto err;
 	}
 
 	/* jump over the padding */
@@ -431,7 +433,8 @@ static int ath10k_core_fetch_firmware_api_n(struct ath10k *ar, const char *name)
 		if (len < ie_len) {
 			ath10k_err("Invalid length for FW IE %d (%zu < %zu)\n",
 				   ie_id, len, ie_len);
-			return -EINVAL;
+			ret = -EINVAL;
+			goto err;
 		}
 
 		switch (ie_id) {
-- 
cgit 


From 0d1a28f241e917d199ad72644edd0d6bb6726577 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Mon, 7 Oct 2013 20:00:36 -0700
Subject: ath10k: fix RX performance when using AP 10.X FW

Due to oversight AP 10.X support was merged with
Ethernet RX decap mode.

Only Native Wifi RX decap mode guarantees IP
header is properly aligned and avoids sk_buff data
realignment (which is very expensive
performance-wise) in mac80211.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/hw.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/hw.h b/drivers/net/wireless/ath/ath10k/hw.h
index 3fd7b9864d18..8aeb46d9b534 100644
--- a/drivers/net/wireless/ath/ath10k/hw.h
+++ b/drivers/net/wireless/ath/ath10k/hw.h
@@ -123,7 +123,7 @@ enum ath10k_mcast2ucast_mode {
 #define TARGET_10X_RX_CHAIN_MASK		(BIT(0) | BIT(1) | BIT(2))
 #define TARGET_10X_RX_TIMEOUT_LO_PRI		100
 #define TARGET_10X_RX_TIMEOUT_HI_PRI		40
-#define TARGET_10X_RX_DECAP_MODE		ATH10K_HW_TXRX_ETHERNET
+#define TARGET_10X_RX_DECAP_MODE		ATH10K_HW_TXRX_NATIVE_WIFI
 #define TARGET_10X_SCAN_MAX_PENDING_REQS	4
 #define TARGET_10X_BMISS_OFFLOAD_MAX_VDEV	2
 #define TARGET_10X_ROAM_OFFLOAD_MAX_VDEV	2
-- 
cgit 


From 2a8876cfdf14de557705e2559df99f40058a3b3b Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 27 Sep 2013 16:53:23 +0530
Subject: pwm: imx: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---
 drivers/pwm/pwm-imx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c
index 2b7c4f88b461..aa6e5c6af6d3 100644
--- a/drivers/pwm/pwm-imx.c
+++ b/drivers/pwm/pwm-imx.c
@@ -16,6 +16,7 @@
 #include <linux/clk.h>
 #include <linux/io.h>
 #include <linux/pwm.h>
+#include <linux/of.h>
 #include <linux/of_device.h>
 
 /* i.MX1 and i.MX21 share the same PWM function block: */
-- 
cgit 


From c3bdfe1f1e4e1e195945c55a2256eba89334d36c Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 27 Sep 2013 16:53:24 +0530
Subject: pwm: samsung: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---
 drivers/pwm/pwm-samsung.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pwm/pwm-samsung.c b/drivers/pwm/pwm-samsung.c
index fcc8b9adde9f..57eb8cb0638f 100644
--- a/drivers/pwm/pwm-samsung.c
+++ b/drivers/pwm/pwm-samsung.c
@@ -18,6 +18,7 @@
 #include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pwm.h>
 #include <linux/slab.h>
-- 
cgit 


From e852340deef3ce260074d53fbe553c60217c6c5b Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 27 Sep 2013 16:53:25 +0530
Subject: pwm: twl-led: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---
 drivers/pwm/pwm-twl-led.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pwm/pwm-twl-led.c b/drivers/pwm/pwm-twl-led.c
index 29d1bba4804e..b964470025c5 100644
--- a/drivers/pwm/pwm-twl-led.c
+++ b/drivers/pwm/pwm-twl-led.c
@@ -21,6 +21,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pwm.h>
 #include <linux/i2c/twl.h>
-- 
cgit 


From ea8eeb1502f20ecada3436ec058f65831b4a0fab Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 27 Sep 2013 16:53:26 +0530
Subject: pwm: twl: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---
 drivers/pwm/pwm-twl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pwm/pwm-twl.c b/drivers/pwm/pwm-twl.c
index eef910580eae..b99a50e626a6 100644
--- a/drivers/pwm/pwm-twl.c
+++ b/drivers/pwm/pwm-twl.c
@@ -18,6 +18,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/pwm.h>
 #include <linux/i2c/twl.h>
-- 
cgit 


From de02cb887cb20d5a7fff5e44acfc67f6fd1ebe0c Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 08:56:39 +0530
Subject: pwm: mxs: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---
 drivers/pwm/pwm-mxs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pwm/pwm-mxs.c b/drivers/pwm/pwm-mxs.c
index c2c5a4fd1b96..9475bc7a6f97 100644
--- a/drivers/pwm/pwm-mxs.c
+++ b/drivers/pwm/pwm-mxs.c
@@ -189,7 +189,7 @@ static struct platform_driver mxs_pwm_driver = {
 	.driver = {
 		.name = "mxs-pwm",
 		.owner = THIS_MODULE,
-		.of_match_table = of_match_ptr(mxs_pwm_dt_ids),
+		.of_match_table = mxs_pwm_dt_ids,
 	},
 	.probe = mxs_pwm_probe,
 	.remove = mxs_pwm_remove,
-- 
cgit 


From 3cb3b2bfddcdf0bd44b787127b52c2bd1ce9f291 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 08:56:40 +0530
Subject: pwm: lpc32xx: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Alexandre Pereira da Silva <aletes.xgr@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---
 drivers/pwm/pwm-lpc32xx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pwm/pwm-lpc32xx.c b/drivers/pwm/pwm-lpc32xx.c
index efac99e03d57..9dc0f9d42bfa 100644
--- a/drivers/pwm/pwm-lpc32xx.c
+++ b/drivers/pwm/pwm-lpc32xx.c
@@ -169,7 +169,7 @@ static struct platform_driver lpc32xx_pwm_driver = {
 	.driver = {
 		.name = "lpc32xx-pwm",
 		.owner = THIS_MODULE,
-		.of_match_table = of_match_ptr(lpc32xx_pwm_dt_ids),
+		.of_match_table = lpc32xx_pwm_dt_ids,
 	},
 	.probe = lpc32xx_pwm_probe,
 	.remove = lpc32xx_pwm_remove,
-- 
cgit 


From becbca1390a5147b363a34e238e74cffe65eecc3 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 08:56:41 +0530
Subject: pwm: imx: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---
 drivers/pwm/pwm-imx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pwm/pwm-imx.c b/drivers/pwm/pwm-imx.c
index aa6e5c6af6d3..cc4773344874 100644
--- a/drivers/pwm/pwm-imx.c
+++ b/drivers/pwm/pwm-imx.c
@@ -297,7 +297,7 @@ static struct platform_driver imx_pwm_driver = {
 	.driver		= {
 		.name	= "imx-pwm",
 		.owner = THIS_MODULE,
-		.of_match_table = of_match_ptr(imx_pwm_dt_ids),
+		.of_match_table = imx_pwm_dt_ids,
 	},
 	.probe		= imx_pwm_probe,
 	.remove		= imx_pwm_remove,
-- 
cgit 


From f74ca9b8094b1b067a0b4069732065f2e1595c73 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Tue, 8 Oct 2013 15:52:18 +0200
Subject: Bluetooth: Fix changing advertising setting while LE is connected

We only (re)enable advertising when LE is disconnected. Trying to enable
advertising using mgmt_set_advertising while connected should simply
change the flag but not do anything else (until the connection gets
dropped). This patch fixes this by making an LE connection lookup to
determine whether there are any connected devices or not.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 4070bb05d304..a9d7506be1a3 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3264,7 +3264,13 @@ static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data, u1
 	val = !!cp->val;
 	enabled = test_bit(HCI_ADVERTISING, &hdev->dev_flags);
 
-	if (!hdev_is_powered(hdev) || val == enabled) {
+	/* The following conditions are ones which mean that we should
+	 * not do any HCI communication but directly send a mgmt
+	 * response to user space (after toggling the flag if
+	 * necessary).
+	 */
+	if (!hdev_is_powered(hdev) || val == enabled ||
+	    hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECTED)) {
 		bool changed = false;
 
 		if (val != test_bit(HCI_ADVERTISING, &hdev->dev_flags)) {
-- 
cgit 


From e5901b5e8e7770814d5b93e9749a941b426a2b82 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Mon, 29 Jul 2013 14:31:54 +0200
Subject: ARM: dove: switch to DT probed mbus address windows

With proper mbus ranges and all internal nodes moved over, we can now
switch from static address window allocation to DT probed allocation.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/mach-dove/board-dt.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/arch/arm/mach-dove/board-dt.c b/arch/arm/mach-dove/board-dt.c
index 49f72a848423..1efbe1d51b7f 100644
--- a/arch/arm/mach-dove/board-dt.c
+++ b/arch/arm/mach-dove/board-dt.c
@@ -51,13 +51,6 @@ static void __init dove_dt_time_init(void)
 	clocksource_of_init();
 }
 
-static void __init dove_dt_init_early(void)
-{
-	mvebu_mbus_init("marvell,dove-mbus",
-			BRIDGE_WINS_BASE, BRIDGE_WINS_SZ,
-			DOVE_MC_WINS_BASE, DOVE_MC_WINS_SZ);
-}
-
 static void __init dove_dt_init(void)
 {
 	pr_info("Dove 88AP510 SoC\n");
@@ -65,7 +58,7 @@ static void __init dove_dt_init(void)
 #ifdef CONFIG_CACHE_TAUROS2
 	tauros2_init(0);
 #endif
-	dove_setup_cpu_wins();
+	BUG_ON(mvebu_mbus_dt_init());
 
 	/* Setup clocks for legacy devices */
 	dove_legacy_clk_init();
@@ -83,7 +76,6 @@ static const char * const dove_dt_board_compat[] = {
 
 DT_MACHINE_START(DOVE_DT, "Marvell Dove (Flattened Device Tree)")
 	.map_io		= dove_map_io,
-	.init_early	= dove_dt_init_early,
 	.init_time	= dove_dt_time_init,
 	.init_machine	= dove_dt_init,
 	.restart	= dove_restart,
-- 
cgit 


From ccbd35c57a201ce5da00d940b092876040ecb1ec Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Mon, 12 Aug 2013 20:46:55 +0200
Subject: ARM: dove: remove legacy pcie and clock init

With DT support for PCIe controllers on Dove, we can now remove the
legacy pcie init and the last remaining clock workaround for its clocks.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/mach-dove/board-dt.c | 29 -----------------------------
 1 file changed, 29 deletions(-)

diff --git a/arch/arm/mach-dove/board-dt.c b/arch/arm/mach-dove/board-dt.c
index 1efbe1d51b7f..9a116d796323 100644
--- a/arch/arm/mach-dove/board-dt.c
+++ b/arch/arm/mach-dove/board-dt.c
@@ -23,28 +23,6 @@
 #include <plat/irq.h>
 #include "common.h"
 
-/*
- * There are still devices that doesn't even know about DT,
- * get clock gates here and add a clock lookup.
- */
-static void __init dove_legacy_clk_init(void)
-{
-	struct device_node *np = of_find_compatible_node(NULL, NULL,
-					 "marvell,dove-gating-clock");
-	struct of_phandle_args clkspec;
-
-	clkspec.np = np;
-	clkspec.args_count = 1;
-
-	clkspec.args[0] = CLOCK_GATING_BIT_PCIE0;
-	orion_clkdev_add("0", "pcie",
-			 of_clk_get_from_provider(&clkspec));
-
-	clkspec.args[0] = CLOCK_GATING_BIT_PCIE1;
-	orion_clkdev_add("1", "pcie",
-			 of_clk_get_from_provider(&clkspec));
-}
-
 static void __init dove_dt_time_init(void)
 {
 	of_clk_init(NULL);
@@ -59,13 +37,6 @@ static void __init dove_dt_init(void)
 	tauros2_init(0);
 #endif
 	BUG_ON(mvebu_mbus_dt_init());
-
-	/* Setup clocks for legacy devices */
-	dove_legacy_clk_init();
-
-	/* Internal devices not ported to DT yet */
-	dove_pcie_init(1, 1);
-
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 }
 
-- 
cgit 


From 96ae0b548672adc12431312718835e77472f5bf0 Mon Sep 17 00:00:00 2001
From: Gregory CLEMENT <gregory.clement@free-electrons.com>
Date: Wed, 25 Sep 2013 13:24:18 +0200
Subject: ARM: mvebu: fix gated clock documentation

The gated clock documentation referred only to the Orion SoC whereas
it also applied for the Armada 370/XP SoC. This commit updates the
introduction text and also the list of the compatible strings.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 .../devicetree/bindings/clock/mvebu-gated-clock.txt        | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/clock/mvebu-gated-clock.txt b/Documentation/devicetree/bindings/clock/mvebu-gated-clock.txt
index cffc93d97f54..fc2910fa7e45 100644
--- a/Documentation/devicetree/bindings/clock/mvebu-gated-clock.txt
+++ b/Documentation/devicetree/bindings/clock/mvebu-gated-clock.txt
@@ -1,10 +1,10 @@
-* Gated Clock bindings for Marvell Orion SoCs
+* Gated Clock bindings for Marvell EBU SoCs
 
-Marvell Dove and Kirkwood allow some peripheral clocks to be gated to save
-some power. The clock consumer should specify the desired clock by having
-the clock ID in its "clocks" phandle cell. The clock ID is directly mapped to
-the corresponding clock gating control bit in HW to ease manual clock lookup
-in datasheet.
+Marvell Armada 370/XP, Dove and Kirkwood allow some peripheral clocks to be
+gated to save some power. The clock consumer should specify the desired clock
+by having the clock ID in its "clocks" phandle cell. The clock ID is directly
+mapped to the corresponding clock gating control bit in HW to ease manual clock
+lookup in datasheet.
 
 The following is a list of provided IDs for Armada 370:
 ID	Clock	Peripheral
@@ -94,6 +94,8 @@ ID	Clock	Peripheral
 
 Required properties:
 - compatible : shall be one of the following:
+	"marvell,armada-370-gating-clock" - for Armada 370 SoC clock gating
+	"marvell,armada-xp-gating-clock" - for Armada XP SoC clock gating
 	"marvell,dove-gating-clock" - for Dove SoC clock gating
 	"marvell,kirkwood-gating-clock" - for Kirkwood SoC clock gating
 - reg : shall be the register address of the Clock Gating Control register
-- 
cgit 


From e1cb367de27ca5c186b0f120c3c10a4a0e8edd2e Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Thu, 22 Aug 2013 12:49:07 -0300
Subject: ARM: kirkwood: Add standby support

Implements standby support for Kirkwood SoC. When the SoC enters
standby state the memory PM units are disabled, the DDR is set
in self-refresh mode, and the CPU is set in WFI.

At this point there's no clock gating, as that is considered each
driver's task.

Signed-off-by: Simon Guinot <sguinot@lacie.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/mach-kirkwood/Makefile                   |  2 +
 arch/arm/mach-kirkwood/board-dt.c                 |  1 +
 arch/arm/mach-kirkwood/common.c                   |  1 +
 arch/arm/mach-kirkwood/common.h                   |  6 ++
 arch/arm/mach-kirkwood/include/mach/bridge-regs.h |  2 +
 arch/arm/mach-kirkwood/pm.c                       | 73 +++++++++++++++++++++++
 6 files changed, 85 insertions(+)
 create mode 100644 arch/arm/mach-kirkwood/pm.c

diff --git a/arch/arm/mach-kirkwood/Makefile b/arch/arm/mach-kirkwood/Makefile
index d1f8e3d0793b..144b51102939 100644
--- a/arch/arm/mach-kirkwood/Makefile
+++ b/arch/arm/mach-kirkwood/Makefile
@@ -1,5 +1,7 @@
 obj-y				+= common.o pcie.o
 obj-$(CONFIG_KIRKWOOD_LEGACY)	+= irq.o mpp.o
+obj-$(CONFIG_PM)		+= pm.o
+
 obj-$(CONFIG_MACH_D2NET_V2)		+= d2net_v2-setup.o lacie_v2-common.o
 obj-$(CONFIG_MACH_NET2BIG_V2)		+= netxbig_v2-setup.o lacie_v2-common.o
 obj-$(CONFIG_MACH_NET5BIG_V2)		+= netxbig_v2-setup.o lacie_v2-common.o
diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c
index 82d3ad8e87cf..cdde73a07c1b 100644
--- a/arch/arm/mach-kirkwood/board-dt.c
+++ b/arch/arm/mach-kirkwood/board-dt.c
@@ -101,6 +101,7 @@ static void __init kirkwood_dt_init(void)
 	/* Setup clocks for legacy devices */
 	kirkwood_legacy_clk_init();
 
+	kirkwood_pm_init();
 	kirkwood_cpuidle_init();
 
 #ifdef CONFIG_KEXEC
diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
index 176761134a66..f3407a5db216 100644
--- a/arch/arm/mach-kirkwood/common.c
+++ b/arch/arm/mach-kirkwood/common.c
@@ -721,6 +721,7 @@ void __init kirkwood_init(void)
 	kirkwood_xor1_init();
 	kirkwood_crypto_init();
 
+	kirkwood_pm_init();
 	kirkwood_cpuidle_init();
 #ifdef CONFIG_KEXEC
 	kexec_reinit = kirkwood_enable_pcie;
diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h
index 1296de94febf..05fd648df543 100644
--- a/arch/arm/mach-kirkwood/common.h
+++ b/arch/arm/mach-kirkwood/common.h
@@ -58,6 +58,12 @@ void kirkwood_cpufreq_init(void);
 void kirkwood_restart(enum reboot_mode, const char *);
 void kirkwood_clk_init(void);
 
+#ifdef CONFIG_PM
+void kirkwood_pm_init(void);
+#else
+static inline void kirkwood_pm_init(void) {};
+#endif
+
 /* board init functions for boards not fully converted to fdt */
 #ifdef CONFIG_MACH_MV88F6281GTW_GE_DT
 void mv88f6281gtw_ge_init(void);
diff --git a/arch/arm/mach-kirkwood/include/mach/bridge-regs.h b/arch/arm/mach-kirkwood/include/mach/bridge-regs.h
index 91242c944d7a..8b9d1c9ff199 100644
--- a/arch/arm/mach-kirkwood/include/mach/bridge-regs.h
+++ b/arch/arm/mach-kirkwood/include/mach/bridge-regs.h
@@ -78,4 +78,6 @@
 #define CGC_TDM			(1 << 20)
 #define CGC_RESERVED		(0x6 << 21)
 
+#define MEMORY_PM_CTRL		(BRIDGE_VIRT_BASE + 0x118)
+
 #endif
diff --git a/arch/arm/mach-kirkwood/pm.c b/arch/arm/mach-kirkwood/pm.c
new file mode 100644
index 000000000000..8783a7184e73
--- /dev/null
+++ b/arch/arm/mach-kirkwood/pm.c
@@ -0,0 +1,73 @@
+/*
+ * Power Management driver for Marvell Kirkwood SoCs
+ *
+ * Copyright (C) 2013 Ezequiel Garcia <ezequiel@free-electrons.com>
+ * Copyright (C) 2010 Simon Guinot <sguinot@lacie.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License,
+ * version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/suspend.h>
+#include <linux/io.h>
+#include <mach/bridge-regs.h>
+
+static void __iomem *ddr_operation_base;
+
+static void kirkwood_low_power(void)
+{
+	u32 mem_pm_ctrl;
+
+	mem_pm_ctrl = readl(MEMORY_PM_CTRL);
+
+	/* Set peripherals to low-power mode */
+	writel_relaxed(~0, MEMORY_PM_CTRL);
+
+	/* Set DDR in self-refresh */
+	writel_relaxed(0x7, ddr_operation_base);
+
+	/*
+	 * Set CPU in wait-for-interrupt state.
+	 * This disables the CPU core clocks,
+	 * the array clocks, and also the L2 controller.
+	 */
+	cpu_do_idle();
+
+	writel_relaxed(mem_pm_ctrl, MEMORY_PM_CTRL);
+}
+
+static int kirkwood_suspend_enter(suspend_state_t state)
+{
+	switch (state) {
+	case PM_SUSPEND_STANDBY:
+		kirkwood_low_power();
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int kirkwood_pm_valid_standby(suspend_state_t state)
+{
+	return state == PM_SUSPEND_STANDBY;
+}
+
+static const struct platform_suspend_ops kirkwood_suspend_ops = {
+	.enter = kirkwood_suspend_enter,
+	.valid = kirkwood_pm_valid_standby,
+};
+
+int __init kirkwood_pm_init(void)
+{
+	ddr_operation_base = ioremap(DDR_OPERATION_BASE, 4);
+	suspend_set_ops(&kirkwood_suspend_ops);
+	return 0;
+}
-- 
cgit 


From a4d4b15363ea31236e557c471d9aa95202fed88a Mon Sep 17 00:00:00 2001
From: Pavel Machek <pavel@ucw.cz>
Date: Tue, 13 Aug 2013 15:36:36 +0200
Subject: ARM: dts: N900: Add device tree

This adds device tree with necessary support to boot with functional
video (on both emulator and real N900 device).

Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/Makefile       |  1 +
 arch/arm/boot/dts/omap3-n900.dts | 92 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 93 insertions(+)
 create mode 100644 arch/arm/boot/dts/omap3-n900.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 802720e3e8fd..a7cae5371489 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -172,6 +172,7 @@ dtb-$(CONFIG_ARCH_OMAP2PLUS) += omap2420-h4.dtb \
 	omap3-devkit8000.dtb \
 	omap3-beagle-xm.dtb \
 	omap3-evm.dtb \
+	omap3-n900.dtb \
 	omap3-tobi.dtb \
 	omap3-igep0020.dtb \
 	omap3-igep0030.dtb \
diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
new file mode 100644
index 000000000000..d64fa04e83f6
--- /dev/null
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -0,0 +1,92 @@
+/*
+ * Copyright (C) 2013 Pavel Machek <pavel@ucw.cz>
+ * Copyright 2013 Aaro Koskinen <aaro.koskinen@iki.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 (or later) as
+ * published by the Free Software Foundation.
+ */
+
+/dts-v1/;
+
+#include "omap34xx.dtsi"
+
+/ {
+	model = "Nokia N900";
+	compatible = "nokia,omap3-n900", "ti,omap3";
+
+	cpus {
+		cpu@0 {
+			cpu0-supply = <&vcc>;
+		};
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x10000000>; /* 256 MB */
+	};
+
+};
+
+&i2c1 {
+	clock-frequency = <2200000>;
+
+	twl: twl@48 {
+		reg = <0x48>;
+		interrupts = <7>; /* SYS_NIRQ cascaded to intc */
+		interrupt-parent = <&intc>;
+	};
+};
+
+#include "twl4030.dtsi"
+
+&twl_gpio {
+	ti,pullups	= <0x0>;
+	ti,pulldowns	= <0x03ff3f>; /* BIT(0..5) | BIT(8..17) */
+};
+
+&i2c2 {
+	clock-frequency = <400000>;
+};
+
+&i2c3 {
+	clock-frequency = <100000>;
+};
+
+&mmc1 {
+	status = "disabled";
+};
+
+&mmc2 {
+	status = "disabled";
+};
+
+&mmc3 {
+	status = "disabled";
+};
+
+&mcspi1 {
+	/*
+	 * For some reason, touchscreen is necessary for screen to work at
+	 * all on real hw. It works well without it on emulator.
+	 *
+	 * Also... order in the device tree actually matters here.
+	 */
+	tsc2005@0 {
+		compatible = "tsc2005";
+		spi-max-frequency = <6000000>;
+		reg = <0>;
+	};
+	mipid@2 {
+		compatible = "acx565akm";
+		spi-max-frequency = <6000000>;
+		reg = <2>;
+	};
+};
+
+&usb_otg_hs {
+	interface-type = <0>;
+	usb-phy = <&usb2_phy>;
+	mode = <2>;
+	power = <50>;
+};
-- 
cgit 


From 00964a90728d752abe61ad134dac8c13491c3595 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Thu, 20 Jun 2013 16:42:30 +0200
Subject: ARM: dts: omap3-igep: add pinmux node for GPIO LED configuration

IGEP boards have a number of LED connected to OMAP or TWL GPIO
lines. The actual wiring is different on each board so each board
DT has need to configure the mux correctly.

Even though it works with the current DT, the kernel complains with:

[2.305023] leds-gpio leds.18: pins are not configured from the driver

Add an empty pinmux_leds_pins pinctrl child node so boards can
override with the correct mux configuration and not depend on
default values for the GPIO LEDs to work.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-igep.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-igep.dtsi b/arch/arm/boot/dts/omap3-igep.dtsi
index 2326d11462a5..0f92224dc4fc 100644
--- a/arch/arm/boot/dts/omap3-igep.dtsi
+++ b/arch/arm/boot/dts/omap3-igep.dtsi
@@ -77,6 +77,8 @@
 			0x1a2 (PIN_INPUT | MUX_MODE4)		/* mcspi1_cs2.gpio_176 */
 		>;
 	};
+
+	leds_pins: pinmux_leds_pins { };
 };
 
 &i2c1 {
-- 
cgit 


From bd52e2d274d369182f38d9ddaf8ce910c2a7332f Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Thu, 20 Jun 2013 16:42:31 +0200
Subject: ARM: dts: omap3-igep0020: add mux conf for GPIO LEDs

The IGEPv2 has a number of GPIO LED connected to OMAP
pins. Configure these pins as output GPIO.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-igep0020.dts | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-igep0020.dts b/arch/arm/boot/dts/omap3-igep0020.dts
index e8c48284587c..51c084eeb7bd 100644
--- a/arch/arm/boot/dts/omap3-igep0020.dts
+++ b/arch/arm/boot/dts/omap3-igep0020.dts
@@ -16,7 +16,10 @@
 	compatible = "isee,omap3-igep0020", "ti,omap3";
 
 	leds {
+		pinctrl-names = "default";
+		pinctrl-0 = <&leds_pins>;
 		compatible = "gpio-leds";
+
 		boot {
 			 label = "omap3:green:boot";
 			 gpios = <&gpio1 26 GPIO_ACTIVE_HIGH>;
@@ -54,6 +57,14 @@
 	};
 };
 
+&leds_pins {
+	pinctrl-single,pins = <
+		0x5c4 (PIN_OUTPUT | MUX_MODE4) /* etk_d12.gpio_26 */
+		0x5c6 (PIN_OUTPUT | MUX_MODE4) /* etk_d13.gpio_27 */
+		0x5c8 (PIN_OUTPUT | MUX_MODE4) /* etk_d14.gpio_28 */
+	>;
+};
+
 &i2c3 {
 	clock-frequency = <100000>;
 
-- 
cgit 


From 78132036da5e11e9d54ef1d62d41255ccdae1c4f Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Thu, 20 Jun 2013 16:42:32 +0200
Subject: ARM: dts: omap3-igep0030: add mux conf for GPIO LED

The IGEP COM MOdule has a GPIO LED connected to OMAP
pins. Configure this pin as output GPIO.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-igep0030.dts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-igep0030.dts b/arch/arm/boot/dts/omap3-igep0030.dts
index 644d05383836..eee3c632b260 100644
--- a/arch/arm/boot/dts/omap3-igep0030.dts
+++ b/arch/arm/boot/dts/omap3-igep0030.dts
@@ -16,7 +16,10 @@
 	compatible = "isee,omap3-igep0030", "ti,omap3";
 
 	leds {
+		pinctrl-names = "default";
+		pinctrl-0 = <&leds_pins>;
 		compatible = "gpio-leds";
+
 		boot {
 			 label = "omap3:green:boot";
 			 gpios = <&twl_gpio 13 GPIO_ACTIVE_LOW>;
@@ -43,6 +46,12 @@
 	};
 };
 
+&leds_pins {
+	pinctrl-single,pins = <
+		0x5b0 (PIN_OUTPUT | MUX_MODE4) /* etk_d2.gpio_16 */
+	>;
+};
+
 &gpmc {
 	ranges = <0 0 0x00000000 0x20000000>;
 
-- 
cgit 


From 6797cdbe14b262c3bcb5a65b1488ae46fdc6b4db Mon Sep 17 00:00:00 2001
From: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Date: Sat, 3 Aug 2013 20:00:54 +0200
Subject: ARM: dts: AM33XX: Add PMU support

ARM Performance Monitor Units are available on the am33xx,
add the support in the dtsi.

Tested with perf and oprofile on a regular beaglebone.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am33xx.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index f9c5da9c7fe1..4d1c6321b252 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -57,6 +57,11 @@
 		};
 	};
 
+	pmu {
+		compatible = "arm,cortex-a8-pmu";
+		interrupts = <3>;
+	};
+
 	/*
 	 * The soc node represents the soc top level view. It is uses for IPs
 	 * that are not memory mapped in the MPU view or for the MPU itself.
-- 
cgit 


From 5eac0eb7af0982afae4788441533cc208ede3ff4 Mon Sep 17 00:00:00 2001
From: Lars Poeschel <poeschel@lemonage.de>
Date: Wed, 7 Aug 2013 13:06:32 +0200
Subject: ARM: dts: AM33xx: Correct gpio #interrupt-cells property

Following commit ff5c9059 and therefore other omap platforms using
the gpio-omap driver correct the #interrupt-cells property on am33xx
too. The omap gpio binding documentaion also states that
the #interrupt-cells property should be 2.

Signed-off-by: Lars Poeschel <poeschel@lemonage.de>
Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am33xx.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 4d1c6321b252..a7731ead0b91 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -111,7 +111,7 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 			interrupt-controller;
-			#interrupt-cells = <1>;
+			#interrupt-cells = <2>;
 			reg = <0x44e07000 0x1000>;
 			interrupts = <96>;
 		};
@@ -122,7 +122,7 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 			interrupt-controller;
-			#interrupt-cells = <1>;
+			#interrupt-cells = <2>;
 			reg = <0x4804c000 0x1000>;
 			interrupts = <98>;
 		};
@@ -133,7 +133,7 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 			interrupt-controller;
-			#interrupt-cells = <1>;
+			#interrupt-cells = <2>;
 			reg = <0x481ac000 0x1000>;
 			interrupts = <32>;
 		};
@@ -144,7 +144,7 @@
 			gpio-controller;
 			#gpio-cells = <2>;
 			interrupt-controller;
-			#interrupt-cells = <1>;
+			#interrupt-cells = <2>;
 			reg = <0x481ae000 0x1000>;
 			interrupts = <62>;
 		};
-- 
cgit 


From 9448996c09509dac80b97a1803bd31b2f99cbc5c Mon Sep 17 00:00:00 2001
From: Kishon Vijay Abraham I <kishon@ti.com>
Date: Mon, 12 Aug 2013 15:07:01 +0530
Subject: ARM: dts: omap5-uevm: Split SMPS10 in two nodes

SMPS10 has two outputs OUT1 and OUT2. Hence SMPS10 is modeled as
two regulators. The DT node is split to reflect it.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap5-uevm.dts | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts
index 65d7b601651c..05b9b126f084 100644
--- a/arch/arm/boot/dts/omap5-uevm.dts
+++ b/arch/arm/boot/dts/omap5-uevm.dts
@@ -334,9 +334,18 @@
 					ti,smps-range = <0x80>;
 				};
 
-				smps10_reg: smps10 {
+				smps10_out2_reg: smps10_out2 {
 					/* VBUS_5V_OTG */
-					regulator-name = "smps10";
+					regulator-name = "smps10_out2";
+					regulator-min-microvolt = <5000000>;
+					regulator-max-microvolt = <5000000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				smps10_out1_reg: smps10_out1 {
+					/* VBUS_5V_OTG */
+					regulator-name = "smps10_out1";
 					regulator-min-microvolt = <5000000>;
 					regulator-max-microvolt = <5000000>;
 					regulator-always-on;
-- 
cgit 


From f1d6ed21944fedc6552e46d38a03127aeaef2d41 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 22 Jul 2013 11:52:31 +0100
Subject: ARM: dts: Remove '0x's from OMAP2420 H4 DTS file

Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap2420-h4.dts | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/omap2420-h4.dts b/arch/arm/boot/dts/omap2420-h4.dts
index 224c08f472f4..34cdecb4fdda 100644
--- a/arch/arm/boot/dts/omap2420-h4.dts
+++ b/arch/arm/boot/dts/omap2420-h4.dts
@@ -50,15 +50,15 @@
 			label = "bootloader";
 			reg = <0 0x20000>;
 		};
-		partition@0x20000 {
+		partition@20000 {
 			label = "params";
 			reg = <0x20000 0x20000>;
 		};
-		partition@0x40000 {
+		partition@40000 {
 			label = "kernel";
 			reg = <0x40000 0x200000>;
 		};
-		partition@0x240000 {
+		partition@240000 {
 			label = "file-system";
 			reg = <0x240000 0x3dc0000>;
 		};
-- 
cgit 


From 8771c9625b6eec65a2a503b1a48ea6d49fc0d5ca Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 22 Jul 2013 11:52:32 +0100
Subject: ARM: dts: Remove '0x's from OMAP3 IGEP0020 DTS file

Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-igep0020.dts | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/omap3-igep0020.dts b/arch/arm/boot/dts/omap3-igep0020.dts
index 51c084eeb7bd..eedf0d8b42d5 100644
--- a/arch/arm/boot/dts/omap3-igep0020.dts
+++ b/arch/arm/boot/dts/omap3-igep0020.dts
@@ -110,19 +110,19 @@
 			label = "SPL";
 			reg = <0 0x100000>;
 		};
-		partition@0x80000 {
+		partition@80000 {
 			label = "U-Boot";
 			reg = <0x100000 0x180000>;
 		};
-		partition@0x1c0000 {
+		partition@1c0000 {
 			label = "Environment";
 			reg = <0x280000 0x100000>;
 		};
-		partition@0x280000 {
+		partition@280000 {
 			label = "Kernel";
 			reg = <0x380000 0x300000>;
 		};
-		partition@0x780000 {
+		partition@780000 {
 			label = "Filesystem";
 			reg = <0x680000 0x1f980000>;
 		};
-- 
cgit 


From fa304a88e7664c32118dfb58fe44cfdffc323f59 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 22 Jul 2013 11:52:33 +0100
Subject: ARM: dts: Remove '0x's from OMAP3 IGEP0030 DTS file

Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-igep0030.dts | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/omap3-igep0030.dts b/arch/arm/boot/dts/omap3-igep0030.dts
index eee3c632b260..525e6d9b0978 100644
--- a/arch/arm/boot/dts/omap3-igep0030.dts
+++ b/arch/arm/boot/dts/omap3-igep0030.dts
@@ -83,19 +83,19 @@
 			label = "SPL";
 			reg = <0 0x100000>;
 		};
-		partition@0x80000 {
+		partition@80000 {
 			label = "U-Boot";
 			reg = <0x100000 0x180000>;
 		};
-		partition@0x1c0000 {
+		partition@1c0000 {
 			label = "Environment";
 			reg = <0x280000 0x100000>;
 		};
-		partition@0x280000 {
+		partition@280000 {
 			label = "Kernel";
 			reg = <0x380000 0x300000>;
 		};
-		partition@0x780000 {
+		partition@780000 {
 			label = "Filesystem";
 			reg = <0x680000 0x1f980000>;
 		};
-- 
cgit 


From b7317777102e54472e747361a907314a8da1f4e0 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 22 Jul 2013 11:52:34 +0100
Subject: ARM: dts: Remove '0x's from OMAP3 DTS file

Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index 7d95cda1fae4..16420ae16004 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -111,7 +111,7 @@
 			pinctrl-single,function-mask = <0x7f1f>;
 		};
 
-		omap3_pmx_wkup: pinmux@0x48002a00 {
+		omap3_pmx_wkup: pinmux@48002a00 {
 			compatible = "ti,omap3-padconf", "pinctrl-single";
 			reg = <0x48002a00 0x5c>;
 			#address-cells = <1>;
-- 
cgit 


From ee8530b41b42bea58e6c78744bc7a75db2781995 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 22 Jul 2013 11:52:35 +0100
Subject: ARM: dts: Remove '0x's from OMAP3430 SDP DTS file

Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3430-sdp.dts | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/arch/arm/boot/dts/omap3430-sdp.dts b/arch/arm/boot/dts/omap3430-sdp.dts
index e2249bcc3e63..281914ed0151 100644
--- a/arch/arm/boot/dts/omap3430-sdp.dts
+++ b/arch/arm/boot/dts/omap3430-sdp.dts
@@ -84,15 +84,15 @@
 			label = "bootloader-nor";
 			reg = <0 0x40000>;
 		};
-		partition@0x40000 {
+		partition@40000 {
 			label = "params-nor";
 			reg = <0x40000 0x40000>;
 		};
-		partition@0x80000 {
+		partition@80000 {
 			label = "kernel-nor";
 			reg = <0x80000 0x200000>;
 		};
-		partition@0x280000 {
+		partition@280000 {
 			label = "filesystem-nor";
 			reg = <0x240000 0x7d80000>;
 		};
@@ -125,19 +125,19 @@
 			label = "xloader-nand";
 			reg = <0 0x80000>;
 		};
-		partition@0x80000 {
+		partition@80000 {
 			label = "bootloader-nand";
 			reg = <0x80000 0x140000>;
 		};
-		partition@0x1c0000 {
+		partition@1c0000 {
 			label = "params-nand";
 			reg = <0x1c0000 0xc0000>;
 		};
-		partition@0x280000 {
+		partition@280000 {
 			label = "kernel-nand";
 			reg = <0x280000 0x500000>;
 		};
-		partition@0x780000 {
+		partition@780000 {
 			label = "filesystem-nand";
 			reg = <0x780000 0x7880000>;
 		};
@@ -170,19 +170,19 @@
 			label = "xloader-onenand";
 			reg = <0 0x80000>;
 		};
-		partition@0x80000 {
+		partition@80000 {
 			label = "bootloader-onenand";
 			reg = <0x80000 0x40000>;
 		};
-		partition@0xc0000 {
+		partition@c0000 {
 			label = "params-onenand";
 			reg = <0xc0000 0x20000>;
 		};
-		partition@0xe0000 {
+		partition@e0000 {
 			label = "kernel-onenand";
 			reg = <0xe0000 0x200000>;
 		};
-		partition@0x2e0000 {
+		partition@2e0000 {
 			label = "filesystem-onenand";
 			reg = <0x2e0000 0xfd20000>;
 		};
-- 
cgit 


From 75d71d46106b93d2e08de91347793cebf1132b95 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 22 Jul 2013 11:52:36 +0100
Subject: ARM: dts: Remove '0x's from OMAP4 DTS file

Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap4.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 22d9f2b593d4..45708e1b7a74 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -56,7 +56,7 @@
 		cache-level = <2>;
 	};
 
-	local-timer@0x48240600 {
+	local-timer@48240600 {
 		compatible = "arm,cortex-a9-twd-timer";
 		reg = <0x48240600 0x20>;
 		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_RAW(3) | IRQ_TYPE_LEVEL_HIGH)>;
-- 
cgit 


From 8906d654992b472ce270d056f523ec21dd06cd3c Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Mon, 22 Jul 2013 11:52:37 +0100
Subject: ARM: dts: Remove '0x's from OMAP5 DTS file

Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap5.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
index 7cdea1bfea09..ecc06a99fd4d 100644
--- a/arch/arm/boot/dts/omap5.dtsi
+++ b/arch/arm/boot/dts/omap5.dtsi
@@ -604,7 +604,7 @@
 			ti,hwmods = "wd_timer2";
 		};
 
-		emif1: emif@0x4c000000 {
+		emif1: emif@4c000000 {
 			compatible	= "ti,emif-4d5";
 			ti,hwmods	= "emif1";
 			phy-type	= <2>; /* DDR PHY type: Intelli PHY */
@@ -615,7 +615,7 @@
 			hw-caps-temp-alert;
 		};
 
-		emif2: emif@0x4d000000 {
+		emif2: emif@4d000000 {
 			compatible	= "ti,emif-4d5";
 			ti,hwmods	= "emif2";
 			phy-type	= <2>; /* DDR PHY type: Intelli PHY */
-- 
cgit 


From 06a9ea5d76fdff82d9792d8cc315de4c43086780 Mon Sep 17 00:00:00 2001
From: Ruslan Bilovol <ruslan.bilovol@ti.com>
Date: Wed, 14 Aug 2013 11:35:47 +0300
Subject: ARM: dts: twl6030: Move common configuration for OMAP4 boards in a
 separate dtsi file

The OMAP4 SoC family uses specially-designed PMIC (power management IC)
companion chip for power management needs: TWL6030/TWL6032.
Therefore there is a typical connection of PMIC to OMAP4 so we can
move it into separate .dtsi file and do not duplicate over
board-specific files.

Tested on OMAP4 SDP board and Pandaboard ES2.

Signed-off-by: Ruslan Bilovol <ruslan.bilovol@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap4-panda-common.dtsi | 21 +----------------
 arch/arm/boot/dts/omap4-sdp.dts           | 21 +----------------
 arch/arm/boot/dts/twl6030_omap4.dtsi      | 38 +++++++++++++++++++++++++++++++
 3 files changed, 40 insertions(+), 40 deletions(-)
 create mode 100644 arch/arm/boot/dts/twl6030_omap4.dtsi

diff --git a/arch/arm/boot/dts/omap4-panda-common.dtsi b/arch/arm/boot/dts/omap4-panda-common.dtsi
index 814ab67c8c29..43b7661cfe24 100644
--- a/arch/arm/boot/dts/omap4-panda-common.dtsi
+++ b/arch/arm/boot/dts/omap4-panda-common.dtsi
@@ -122,23 +122,9 @@
 	};
 };
 
-&omap4_pmx_wkup {
-	pinctrl-names = "default";
-	pinctrl-0 = <
-			&twl6030_wkup_pins
-	>;
-
-	twl6030_wkup_pins: pinmux_twl6030_wkup_pins {
-		pinctrl-single,pins = <
-			0x14 (PIN_OUTPUT | MUX_MODE2)		/* fref_clk0_out.sys_drm_msecure */
-		>;
-	};
-};
-
 &omap4_pmx_core {
 	pinctrl-names = "default";
 	pinctrl-0 = <
-			&twl6030_pins
 			&twl6040_pins
 			&mcpdm_pins
 			&mcbsp1_pins
@@ -147,12 +133,6 @@
 			&hsusbb1_pins
 	>;
 
-	twl6030_pins: pinmux_twl6030_pins {
-		pinctrl-single,pins = <
-			0x15e (WAKEUP_EN | PIN_INPUT_PULLUP | MUX_MODE0)	/* sys_nirq1.sys_nirq1 */
-		>;
-	};
-
 	twl6040_pins: pinmux_twl6040_pins {
 		pinctrl-single,pins = <
 			0xe0 (PIN_OUTPUT | MUX_MODE3)	/* hdq_sio.gpio_127 */
@@ -305,6 +285,7 @@
 };
 
 #include "twl6030.dtsi"
+#include "twl6030_omap4.dtsi"
 
 &i2c2 {
 	pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
index 4f78380ecdb8..5fc3f43c5a81 100644
--- a/arch/arm/boot/dts/omap4-sdp.dts
+++ b/arch/arm/boot/dts/omap4-sdp.dts
@@ -155,23 +155,9 @@
 	};
 };
 
-&omap4_pmx_wkup {
-	pinctrl-names = "default";
-	pinctrl-0 = <
-			&twl6030_wkup_pins
-	>;
-
-	twl6030_wkup_pins: pinmux_twl6030_wkup_pins {
-		pinctrl-single,pins = <
-			0x14 (PIN_OUTPUT | MUX_MODE2)		/* fref_clk0_out.sys_drm_msecure */
-		>;
-	};
-};
-
 &omap4_pmx_core {
 	pinctrl-names = "default";
 	pinctrl-0 = <
-			&twl6030_pins
 			&twl6040_pins
 			&mcpdm_pins
 			&dmic_pins
@@ -206,12 +192,6 @@
 		>;
 	};
 
-	twl6030_pins: pinmux_twl6030_pins {
-		pinctrl-single,pins = <
-			0x15e (WAKEUP_EN | PIN_INPUT_PULLUP | MUX_MODE0)	/* sys_nirq1.sys_nirq1 */
-		>;
-	};
-
 	twl6040_pins: pinmux_twl6040_pins {
 		pinctrl-single,pins = <
 			0xe0 (PIN_OUTPUT | MUX_MODE3)		/* hdq_sio.gpio_127 */
@@ -370,6 +350,7 @@
 };
 
 #include "twl6030.dtsi"
+#include "twl6030_omap4.dtsi"
 
 &i2c2 {
 	pinctrl-names = "default";
diff --git a/arch/arm/boot/dts/twl6030_omap4.dtsi b/arch/arm/boot/dts/twl6030_omap4.dtsi
new file mode 100644
index 000000000000..a4fa5703c42b
--- /dev/null
+++ b/arch/arm/boot/dts/twl6030_omap4.dtsi
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+&twl {
+	/*
+	 * On most OMAP4 platforms, the twl6030 IRQ line is connected
+	 * to the SYS_NIRQ1 line on OMAP and the twl6030 MSECURE line is
+	 * connected to the fref_clk0_out.sys_drm_msecure line.
+	 * Therefore, configure the defaults for the SYS_NIRQ1 and
+	 * fref_clk0_out.sys_drm_msecure pins here.
+	 */
+	pinctrl-names = "default";
+	pinctrl-0 = <
+		&twl6030_pins
+		&twl6030_wkup_pins
+	>;
+};
+
+&omap4_pmx_wkup {
+	twl6030_wkup_pins: pinmux_twl6030_wkup_pins {
+		pinctrl-single,pins = <
+			0x14 (PIN_OUTPUT | MUX_MODE2)		/* fref_clk0_out.sys_drm_msecure */
+		>;
+	};
+};
+
+&omap4_pmx_core {
+	twl6030_pins: pinmux_twl6030_pins {
+		pinctrl-single,pins = <
+			0x15e (WAKEUP_EN | PIN_INPUT_PULLUP | MUX_MODE0)	/* sys_nirq1.sys_nirq1 */
+		>;
+	};
+};
-- 
cgit 


From 6e58b8f1daaf1af340fb9309907e5ffa473c7aff Mon Sep 17 00:00:00 2001
From: R Sricharan <r.sricharan@ti.com>
Date: Wed, 14 Aug 2013 19:08:20 +0530
Subject: ARM: dts: DRA7: Add the dts files for dra7 SoC and dra7-evm board

Add minimal device tree source needed for DRA7 based SoCs.
Also add a board dts file for the dra7-evm (based on dra752)
which contains 1.5G of memory with 1G interleaved and 512MB
non-interleaved. Also added in the board file are pin configuration
details for i2c, mcspi and uart devices on board.

Signed-off-by: R Sricharan <r.sricharan@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/Makefile        |   3 +-
 arch/arm/boot/dts/dra7-evm.dts    | 140 ++++++++++
 arch/arm/boot/dts/dra7.dtsi       | 575 ++++++++++++++++++++++++++++++++++++++
 include/dt-bindings/pinctrl/dra.h |  50 ++++
 4 files changed, 767 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/boot/dts/dra7-evm.dts
 create mode 100644 arch/arm/boot/dts/dra7.dtsi
 create mode 100644 include/dt-bindings/pinctrl/dra.h

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index a7cae5371489..b057b0e12d7c 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -189,7 +189,8 @@ dtb-$(CONFIG_ARCH_OMAP2PLUS) += omap2420-h4.dtb \
 	am335x-boneblack.dtb \
 	am3517-evm.dtb \
 	am3517_mt_ventoux.dtb \
-	am43x-epos-evm.dtb
+	am43x-epos-evm.dtb \
+	dra7-evm.dtb
 dtb-$(CONFIG_ARCH_ORION5X) += orion5x-lacie-ethernet-disk-mini-v2.dtb
 dtb-$(CONFIG_ARCH_PRIMA2) += prima2-evb.dtb
 dtb-$(CONFIG_ARCH_U8500) += ste-snowball.dtb \
diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
new file mode 100644
index 000000000000..ca5dab2214d5
--- /dev/null
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -0,0 +1,140 @@
+/*
+ * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+/dts-v1/;
+
+#include "dra7.dtsi"
+
+/ {
+	model = "TI DRA7";
+	compatible = "ti,dra7-evm", "ti,dra752", "ti,dra7";
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x60000000>; /* 1536 MB */
+	};
+};
+
+&dra7_pmx_core {
+	i2c1_pins: pinmux_i2c1_pins {
+		pinctrl-single,pins = <
+			0x400 (PIN_INPUT | MUX_MODE0) /* i2c1_sda */
+			0x404 (PIN_INPUT | MUX_MODE0) /* i2c1_scl */
+		>;
+	};
+
+	i2c2_pins: pinmux_i2c2_pins {
+		pinctrl-single,pins = <
+			0x408 (PIN_INPUT | MUX_MODE0) /* i2c2_sda */
+			0x40c (PIN_INPUT | MUX_MODE0) /* i2c2_scl */
+		>;
+	};
+
+	i2c3_pins: pinmux_i2c3_pins {
+		pinctrl-single,pins = <
+			0x410 (PIN_INPUT | MUX_MODE0) /* i2c3_sda */
+			0x414 (PIN_INPUT | MUX_MODE0) /* i2c3_scl */
+		>;
+	};
+
+	mcspi1_pins: pinmux_mcspi1_pins {
+		pinctrl-single,pins = <
+			0x3a4 (PIN_INPUT | MUX_MODE0) /* spi2_clk */
+			0x3a8 (PIN_INPUT | MUX_MODE0) /* spi2_d1 */
+			0x3ac (PIN_INPUT | MUX_MODE0) /* spi2_d0 */
+			0x3b0 (PIN_INPUT_SLEW | MUX_MODE0) /* spi2_cs0 */
+			0x3b4 (PIN_INPUT_SLEW | MUX_MODE0) /* spi2_cs1 */
+			0x3b8 (PIN_INPUT_SLEW | MUX_MODE6) /* spi2_cs2 */
+			0x3bc (PIN_INPUT_SLEW | MUX_MODE6) /* spi2_cs3 */
+		>;
+	};
+
+	mcspi2_pins: pinmux_mcspi2_pins {
+		pinctrl-single,pins = <
+			0x3c0 (PIN_INPUT | MUX_MODE0) /* spi2_sclk */
+			0x3c4 (PIN_INPUT_SLEW | MUX_MODE0) /* spi2_d1 */
+			0x3c8 (PIN_INPUT_SLEW | MUX_MODE0) /* spi2_d1 */
+			0x3cc (PIN_INPUT_SLEW | MUX_MODE0) /* spi2_cs0 */
+		>;
+	};
+
+	uart1_pins: pinmux_uart1_pins {
+		pinctrl-single,pins = <
+			0x3e0 (PIN_INPUT_SLEW | MUX_MODE0) /* uart1_rxd */
+			0x3e4 (PIN_INPUT_SLEW | MUX_MODE0) /* uart1_txd */
+			0x3e8 (PIN_INPUT | MUX_MODE3) /* uart1_ctsn */
+			0x3ec (PIN_INPUT | MUX_MODE3) /* uart1_rtsn */
+		>;
+	};
+
+	uart2_pins: pinmux_uart2_pins {
+		pinctrl-single,pins = <
+			0x3f0 (PIN_INPUT | MUX_MODE0) /* uart2_rxd */
+			0x3f4 (PIN_INPUT | MUX_MODE0) /* uart2_txd */
+			0x3f8 (PIN_INPUT | MUX_MODE0) /* uart2_ctsn */
+			0x3fc (PIN_INPUT | MUX_MODE0) /* uart2_rtsn */
+		>;
+	};
+
+	uart3_pins: pinmux_uart3_pins {
+		pinctrl-single,pins = <
+			0x248 (PIN_INPUT_SLEW | MUX_MODE0) /* uart3_rxd */
+			0x24c (PIN_INPUT_SLEW | MUX_MODE0) /* uart3_txd */
+		>;
+	};
+};
+
+&i2c1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
+	clock-frequency = <400000>;
+};
+
+&i2c2 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c2_pins>;
+	clock-frequency = <400000>;
+};
+
+&i2c3 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c3_pins>;
+	clock-frequency = <3400000>;
+};
+
+&mcspi1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&mcspi1_pins>;
+};
+
+&mcspi2 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&mcspi2_pins>;
+};
+
+&uart1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1_pins>;
+};
+
+&uart2 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart2_pins>;
+};
+
+&uart3 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart3_pins>;
+};
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
new file mode 100644
index 000000000000..c01ef769761f
--- /dev/null
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -0,0 +1,575 @@
+/*
+ * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ * Based on "omap4.dtsi"
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/pinctrl/dra.h>
+
+#include "skeleton.dtsi"
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	compatible = "ti,dra7xx";
+	interrupt-parent = <&gic>;
+
+	aliases {
+		serial0 = &uart1;
+		serial1 = &uart2;
+		serial2 = &uart3;
+		serial3 = &uart4;
+		serial4 = &uart5;
+		serial5 = &uart6;
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a15";
+			reg = <0>;
+		};
+		cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a15";
+			reg = <1>;
+		};
+	};
+
+	timer {
+		compatible = "arm,armv7-timer";
+		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 14 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 11 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
+	};
+
+	gic: interrupt-controller@48211000 {
+		compatible = "arm,cortex-a15-gic";
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		reg = <0x48211000 0x1000>,
+		      <0x48212000 0x1000>,
+		      <0x48214000 0x2000>,
+		      <0x48216000 0x2000>;
+		interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_HIGH)>;
+	};
+
+	/*
+	 * The soc node represents the soc top level view. It is uses for IPs
+	 * that are not memory mapped in the MPU view or for the MPU itself.
+	 */
+	soc {
+		compatible = "ti,omap-infra";
+		mpu {
+			compatible = "ti,omap5-mpu";
+			ti,hwmods = "mpu";
+		};
+	};
+
+	/*
+	 * XXX: Use a flat representation of the SOC interconnect.
+	 * The real OMAP interconnect network is quite complex.
+	 * Since that will not bring real advantage to represent that in DT for
+	 * the moment, just use a fake OCP bus entry to represent the whole bus
+	 * hierarchy.
+	 */
+	ocp {
+		compatible = "ti,omap4-l3-noc", "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+		ti,hwmods = "l3_main_1", "l3_main_2";
+		reg = <0x44000000 0x2000>,
+		      <0x44800000 0x3000>;
+		interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
+
+		counter32k: counter@4ae04000 {
+			compatible = "ti,omap-counter32k";
+			reg = <0x4ae04000 0x40>;
+			ti,hwmods = "counter_32k";
+		};
+
+		dra7_pmx_core: pinmux@4a003400 {
+			compatible = "pinctrl-single";
+			reg = <0x4a003400 0x0464>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			pinctrl-single,register-width = <32>;
+			pinctrl-single,function-mask = <0x3fffffff>;
+		};
+
+		sdma: dma-controller@4a056000 {
+			compatible = "ti,omap4430-sdma";
+			reg = <0x4a056000 0x1000>;
+			interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
+			#dma-cells = <1>;
+			#dma-channels = <32>;
+			#dma-requests = <127>;
+		};
+
+		gpio1: gpio@4ae10000 {
+			compatible = "ti,omap4-gpio";
+			reg = <0x4ae10000 0x200>;
+			interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "gpio1";
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <1>;
+		};
+
+		gpio2: gpio@48055000 {
+			compatible = "ti,omap4-gpio";
+			reg = <0x48055000 0x200>;
+			interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "gpio2";
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <1>;
+		};
+
+		gpio3: gpio@48057000 {
+			compatible = "ti,omap4-gpio";
+			reg = <0x48057000 0x200>;
+			interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "gpio3";
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <1>;
+		};
+
+		gpio4: gpio@48059000 {
+			compatible = "ti,omap4-gpio";
+			reg = <0x48059000 0x200>;
+			interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "gpio4";
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <1>;
+		};
+
+		gpio5: gpio@4805b000 {
+			compatible = "ti,omap4-gpio";
+			reg = <0x4805b000 0x200>;
+			interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "gpio5";
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <1>;
+		};
+
+		gpio6: gpio@4805d000 {
+			compatible = "ti,omap4-gpio";
+			reg = <0x4805d000 0x200>;
+			interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "gpio6";
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <1>;
+		};
+
+		gpio7: gpio@48051000 {
+			compatible = "ti,omap4-gpio";
+			reg = <0x48051000 0x200>;
+			interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "gpio7";
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <1>;
+		};
+
+		gpio8: gpio@48053000 {
+			compatible = "ti,omap4-gpio";
+			reg = <0x48053000 0x200>;
+			interrupts = <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "gpio8";
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <1>;
+		};
+
+		uart1: serial@4806a000 {
+			compatible = "ti,omap4-uart";
+			reg = <0x4806a000 0x100>;
+			interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "uart1";
+			clock-frequency = <48000000>;
+			status = "disabled";
+		};
+
+		uart2: serial@4806c000 {
+			compatible = "ti,omap4-uart";
+			reg = <0x4806c000 0x100>;
+			interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "uart2";
+			clock-frequency = <48000000>;
+			status = "disabled";
+		};
+
+		uart3: serial@48020000 {
+			compatible = "ti,omap4-uart";
+			reg = <0x48020000 0x100>;
+			interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "uart3";
+			clock-frequency = <48000000>;
+			status = "disabled";
+		};
+
+		uart4: serial@4806e000 {
+			compatible = "ti,omap4-uart";
+			reg = <0x4806e000 0x100>;
+			interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "uart4";
+			clock-frequency = <48000000>;
+                        status = "disabled";
+		};
+
+		uart5: serial@48066000 {
+			compatible = "ti,omap4-uart";
+			reg = <0x48066000 0x100>;
+			interrupts = <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "uart5";
+			clock-frequency = <48000000>;
+			status = "disabled";
+		};
+
+		uart6: serial@48068000 {
+			compatible = "ti,omap4-uart";
+			reg = <0x48068000 0x100>;
+			interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "uart6";
+			clock-frequency = <48000000>;
+			status = "disabled";
+		};
+
+		uart7: serial@48420000 {
+			compatible = "ti,omap4-uart";
+			reg = <0x48420000 0x100>;
+			ti,hwmods = "uart7";
+			clock-frequency = <48000000>;
+			status = "disabled";
+		};
+
+		uart8: serial@48422000 {
+			compatible = "ti,omap4-uart";
+			reg = <0x48422000 0x100>;
+			ti,hwmods = "uart8";
+			clock-frequency = <48000000>;
+			status = "disabled";
+		};
+
+		uart9: serial@48424000 {
+			compatible = "ti,omap4-uart";
+			reg = <0x48424000 0x100>;
+			ti,hwmods = "uart9";
+			clock-frequency = <48000000>;
+			status = "disabled";
+		};
+
+		uart10: serial@4ae2b000 {
+			compatible = "ti,omap4-uart";
+			reg = <0x4ae2b000 0x100>;
+			ti,hwmods = "uart10";
+			clock-frequency = <48000000>;
+			status = "disabled";
+		};
+
+		timer1: timer@4ae18000 {
+			compatible = "ti,omap5430-timer";
+			reg = <0x4ae18000 0x80>;
+			interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "timer1";
+			ti,timer-alwon;
+		};
+
+		timer2: timer@48032000 {
+			compatible = "ti,omap5430-timer";
+			reg = <0x48032000 0x80>;
+			interrupts = <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "timer2";
+		};
+
+		timer3: timer@48034000 {
+			compatible = "ti,omap5430-timer";
+			reg = <0x48034000 0x80>;
+			interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "timer3";
+		};
+
+		timer4: timer@48036000 {
+			compatible = "ti,omap5430-timer";
+			reg = <0x48036000 0x80>;
+			interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "timer4";
+		};
+
+		timer5: timer@48820000 {
+			compatible = "ti,omap5430-timer";
+			reg = <0x48820000 0x80>;
+			interrupts = <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "timer5";
+			ti,timer-dsp;
+		};
+
+		timer6: timer@48822000 {
+			compatible = "ti,omap5430-timer";
+			reg = <0x48822000 0x80>;
+			interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "timer6";
+			ti,timer-dsp;
+			ti,timer-pwm;
+		};
+
+		timer7: timer@48824000 {
+			compatible = "ti,omap5430-timer";
+			reg = <0x48824000 0x80>;
+			interrupts = <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "timer7";
+			ti,timer-dsp;
+		};
+
+		timer8: timer@48826000 {
+			compatible = "ti,omap5430-timer";
+			reg = <0x48826000 0x80>;
+			interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "timer8";
+			ti,timer-dsp;
+			ti,timer-pwm;
+		};
+
+		timer9: timer@4803e000 {
+			compatible = "ti,omap5430-timer";
+			reg = <0x4803e000 0x80>;
+			interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "timer9";
+		};
+
+		timer10: timer@48086000 {
+			compatible = "ti,omap5430-timer";
+			reg = <0x48086000 0x80>;
+			interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "timer10";
+		};
+
+		timer11: timer@48088000 {
+			compatible = "ti,omap5430-timer";
+			reg = <0x48088000 0x80>;
+			interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "timer11";
+			ti,timer-pwm;
+		};
+
+		timer13: timer@48828000 {
+			compatible = "ti,omap5430-timer";
+			reg = <0x48828000 0x80>;
+			ti,hwmods = "timer13";
+			status = "disabled";
+		};
+
+		timer14: timer@4882a000 {
+			compatible = "ti,omap5430-timer";
+			reg = <0x4882a000 0x80>;
+			ti,hwmods = "timer14";
+			status = "disabled";
+		};
+
+		timer15: timer@4882c000 {
+			compatible = "ti,omap5430-timer";
+			reg = <0x4882c000 0x80>;
+			ti,hwmods = "timer15";
+			status = "disabled";
+		};
+
+		timer16: timer@4882e000 {
+			compatible = "ti,omap5430-timer";
+			reg = <0x4882e000 0x80>;
+			ti,hwmods = "timer16";
+			status = "disabled";
+		};
+
+		wdt2: wdt@4ae14000 {
+			compatible = "ti,omap4-wdt";
+			reg = <0x4ae14000 0x80>;
+			interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "wd_timer2";
+		};
+
+		i2c1: i2c@48070000 {
+			compatible = "ti,omap4-i2c";
+			reg = <0x48070000 0x100>;
+			interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ti,hwmods = "i2c1";
+			status = "disabled";
+		};
+
+		i2c2: i2c@48072000 {
+			compatible = "ti,omap4-i2c";
+			reg = <0x48072000 0x100>;
+			interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ti,hwmods = "i2c2";
+			status = "disabled";
+		};
+
+		i2c3: i2c@48060000 {
+			compatible = "ti,omap4-i2c";
+			reg = <0x48060000 0x100>;
+			interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ti,hwmods = "i2c3";
+			status = "disabled";
+		};
+
+		i2c4: i2c@4807a000 {
+			compatible = "ti,omap4-i2c";
+			reg = <0x4807a000 0x100>;
+			interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ti,hwmods = "i2c4";
+			status = "disabled";
+		};
+
+		i2c5: i2c@4807c000 {
+			compatible = "ti,omap4-i2c";
+			reg = <0x4807c000 0x100>;
+			interrupts = <GIC_SPI 60 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ti,hwmods = "i2c5";
+			status = "disabled";
+		};
+
+		mmc1: mmc@4809c000 {
+			compatible = "ti,omap4-hsmmc";
+			reg = <0x4809c000 0x400>;
+			interrupts = <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "mmc1";
+			ti,dual-volt;
+			ti,needs-special-reset;
+			dmas = <&sdma 61>, <&sdma 62>;
+			dma-names = "tx", "rx";
+			status = "disabled";
+		};
+
+		mmc2: mmc@480b4000 {
+			compatible = "ti,omap4-hsmmc";
+			reg = <0x480b4000 0x400>;
+			interrupts = <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "mmc2";
+			ti,needs-special-reset;
+			dmas = <&sdma 47>, <&sdma 48>;
+			dma-names = "tx", "rx";
+			status = "disabled";
+		};
+
+		mmc3: mmc@480ad000 {
+			compatible = "ti,omap4-hsmmc";
+			reg = <0x480ad000 0x400>;
+			interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "mmc3";
+			ti,needs-special-reset;
+			dmas = <&sdma 77>, <&sdma 78>;
+			dma-names = "tx", "rx";
+			status = "disabled";
+		};
+
+		mmc4: mmc@480d1000 {
+			compatible = "ti,omap4-hsmmc";
+			reg = <0x480d1000 0x400>;
+			interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "mmc4";
+			ti,needs-special-reset;
+			dmas = <&sdma 57>, <&sdma 58>;
+			dma-names = "tx", "rx";
+			status = "disabled";
+		};
+
+		mcspi1: spi@48098000 {
+			compatible = "ti,omap4-mcspi";
+			reg = <0x48098000 0x200>;
+			interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ti,hwmods = "mcspi1";
+			ti,spi-num-cs = <4>;
+			dmas = <&sdma 35>,
+			       <&sdma 36>,
+			       <&sdma 37>,
+			       <&sdma 38>,
+			       <&sdma 39>,
+			       <&sdma 40>,
+			       <&sdma 41>,
+			       <&sdma 42>;
+			dma-names = "tx0", "rx0", "tx1", "rx1",
+				    "tx2", "rx2", "tx3", "rx3";
+			status = "disabled";
+		};
+
+		mcspi2: spi@4809a000 {
+			compatible = "ti,omap4-mcspi";
+			reg = <0x4809a000 0x200>;
+			interrupts = <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ti,hwmods = "mcspi2";
+			ti,spi-num-cs = <2>;
+			dmas = <&sdma 43>,
+			       <&sdma 44>,
+			       <&sdma 45>,
+			       <&sdma 46>;
+			dma-names = "tx0", "rx0", "tx1", "rx1";
+			status = "disabled";
+		};
+
+		mcspi3: spi@480b8000 {
+			compatible = "ti,omap4-mcspi";
+			reg = <0x480b8000 0x200>;
+			interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ti,hwmods = "mcspi3";
+			ti,spi-num-cs = <2>;
+			dmas = <&sdma 15>, <&sdma 16>;
+			dma-names = "tx0", "rx0";
+			status = "disabled";
+		};
+
+		mcspi4: spi@480ba000 {
+			compatible = "ti,omap4-mcspi";
+			reg = <0x480ba000 0x200>;
+			interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ti,hwmods = "mcspi4";
+			ti,spi-num-cs = <1>;
+			dmas = <&sdma 70>, <&sdma 71>;
+			dma-names = "tx0", "rx0";
+			status = "disabled";
+		};
+	};
+};
diff --git a/include/dt-bindings/pinctrl/dra.h b/include/dt-bindings/pinctrl/dra.h
new file mode 100644
index 000000000000..002a2855c046
--- /dev/null
+++ b/include/dt-bindings/pinctrl/dra.h
@@ -0,0 +1,50 @@
+/*
+ * This header provides constants for DRA pinctrl bindings.
+ *
+ * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
+ * Author: Rajendra Nayak <rnayak@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _DT_BINDINGS_PINCTRL_DRA_H
+#define _DT_BINDINGS_PINCTRL_DRA_H
+
+/* DRA7 mux mode options for each pin. See TRM for options */
+#define MUX_MODE0	0x0
+#define MUX_MODE1	0x1
+#define MUX_MODE2	0x2
+#define MUX_MODE3	0x3
+#define MUX_MODE4	0x4
+#define MUX_MODE5	0x5
+#define MUX_MODE6	0x6
+#define MUX_MODE7	0x7
+#define MUX_MODE8	0x8
+#define MUX_MODE9	0x9
+#define MUX_MODE10	0xa
+#define MUX_MODE11	0xb
+#define MUX_MODE12	0xc
+#define MUX_MODE13	0xd
+#define MUX_MODE14	0xe
+#define MUX_MODE15	0xf
+
+#define PULL_ENA		(1 << 16)
+#define PULL_UP			(1 << 17)
+#define INPUT_EN		(1 << 18)
+#define SLEWCONTROL		(1 << 19)
+#define WAKEUP_EN		(1 << 24)
+#define WAKEUP_EVENT		(1 << 25)
+
+/* Active pin states */
+#define PIN_OUTPUT		0
+#define PIN_OUTPUT_PULLUP	(PIN_OUTPUT | PULL_ENA | PULL_UP)
+#define PIN_OUTPUT_PULLDOWN	(PIN_OUTPUT | PULL_ENA)
+#define PIN_INPUT		INPUT_EN
+#define PIN_INPUT_SLEW		(INPUT_EN | SLEWCONTROL)
+#define PIN_INPUT_PULLUP	(PULL_ENA | INPUT_EN | PULL_UP)
+#define PIN_INPUT_PULLDOWN	(PULL_ENA | INPUT_EN)
+
+#endif
+
-- 
cgit 


From 738c74090e97854278827637297556e6ae0a7fab Mon Sep 17 00:00:00 2001
From: Afzal Mohammed <afzal@ti.com>
Date: Fri, 2 Aug 2013 19:16:13 +0530
Subject: ARM: dts: AM4372: cpu(s) node per latest binding

Update AM4372 cpu node to the latest cpus/cpu bindings for ARM.

Signed-off-by: Afzal Mohammed <afzal@ti.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am4372.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index ddc1df77ac52..4635e7f3d129 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -22,8 +22,12 @@
 	};
 
 	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
 		cpu@0 {
 			compatible = "arm,cortex-a9";
+			device_type = "cpu";
+			reg = <0>;
 		};
 	};
 
-- 
cgit 


From 73456012734b80442b33916406cfd13bf1b73acb Mon Sep 17 00:00:00 2001
From: Afzal Mohammed <afzal@ti.com>
Date: Fri, 2 Aug 2013 19:16:35 +0530
Subject: ARM: dts: AM4372: add few nodes

Populate uarts, timers, rtc, wdt, gpio, i2c, spi, cpsw & pwm nodes.

Reason for adding these nodes early - hwmod code required address
space of peripherals corresponding to these nodes (as address space
details are removed from hwmod database).

uart0, timers - 1 & 2 and synctimer were already present, so here the
remaining uarts & timers are added.

All properties as per the existing binding has been added for uart,
timer, rtc, wdt & gpio. Even though that was not the current scope
of work, felt adding those would reduce or require no effort later
to get these peripherals working.

For i2c, spi, cpsw & pwm - only the properties that were sure to be
correct has been added (main intention is to make hwmod happy and
avoid any later modification to here added properties).

While at it add "ti,hwmod" property to already existing nodes.

Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am4372.dtsi | 343 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 343 insertions(+)

diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index 4635e7f3d129..0fe393ab8920 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -49,6 +49,47 @@
 			compatible = "ti,am4372-uart","ti,omap2-uart";
 			reg = <0x44e09000 0x2000>;
 			interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "uart1";
+		};
+
+		uart1: serial@48022000 {
+			compatible = "ti,am4372-uart","ti,omap2-uart";
+			reg = <0x48022000 0x2000>;
+			interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "uart2";
+			status = "disabled";
+		};
+
+		uart2: serial@48024000 {
+			compatible = "ti,am4372-uart","ti,omap2-uart";
+			reg = <0x48024000 0x2000>;
+			interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "uart3";
+			status = "disabled";
+		};
+
+		uart3: serial@481a6000 {
+			compatible = "ti,am4372-uart","ti,omap2-uart";
+			reg = <0x481a6000 0x2000>;
+			interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "uart4";
+			status = "disabled";
+		};
+
+		uart4: serial@481a8000 {
+			compatible = "ti,am4372-uart","ti,omap2-uart";
+			reg = <0x481a8000 0x2000>;
+			interrupts = <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "uart5";
+			status = "disabled";
+		};
+
+		uart5: serial@481aa000 {
+			compatible = "ti,am4372-uart","ti,omap2-uart";
+			reg = <0x481aa000 0x2000>;
+			interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "uart6";
+			status = "disabled";
 		};
 
 		timer1: timer@44e31000 {
@@ -56,17 +97,319 @@
 			reg = <0x44e31000 0x400>;
 			interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
 			ti,timer-alwon;
+			ti,hwmods = "timer1";
 		};
 
 		timer2: timer@48040000  {
 			compatible = "ti,am4372-timer","ti,am335x-timer";
 			reg = <0x48040000  0x400>;
 			interrupts = <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "timer2";
+		};
+
+		timer3: timer@48042000 {
+			compatible = "ti,am4372-timer","ti,am335x-timer";
+			reg = <0x48042000 0x400>;
+			interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "timer3";
+			status = "disabled";
+		};
+
+		timer4: timer@48044000 {
+			compatible = "ti,am4372-timer","ti,am335x-timer";
+			reg = <0x48044000 0x400>;
+			interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>;
+			ti,timer-pwm;
+			ti,hwmods = "timer4";
+			status = "disabled";
+		};
+
+		timer5: timer@48046000 {
+			compatible = "ti,am4372-timer","ti,am335x-timer";
+			reg = <0x48046000 0x400>;
+			interrupts = <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>;
+			ti,timer-pwm;
+			ti,hwmods = "timer5";
+			status = "disabled";
+		};
+
+		timer6: timer@48048000 {
+			compatible = "ti,am4372-timer","ti,am335x-timer";
+			reg = <0x48048000 0x400>;
+			interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
+			ti,timer-pwm;
+			ti,hwmods = "timer6";
+			status = "disabled";
+		};
+
+		timer7: timer@4804a000 {
+			compatible = "ti,am4372-timer","ti,am335x-timer";
+			reg = <0x4804a000 0x400>;
+			interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>;
+			ti,timer-pwm;
+			ti,hwmods = "timer7";
+			status = "disabled";
+		};
+
+		timer8: timer@481c1000 {
+			compatible = "ti,am4372-timer","ti,am335x-timer";
+			reg = <0x481c1000 0x400>;
+			interrupts = <GIC_SPI 131 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "timer8";
+			status = "disabled";
+		};
+
+		timer9: timer@4833d000 {
+			compatible = "ti,am4372-timer","ti,am335x-timer";
+			reg = <0x4833d000 0x400>;
+			interrupts = <GIC_SPI 132 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "timer9";
+			status = "disabled";
+		};
+
+		timer10: timer@4833f000 {
+			compatible = "ti,am4372-timer","ti,am335x-timer";
+			reg = <0x4833f000 0x400>;
+			interrupts = <GIC_SPI 133 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "timer10";
+			status = "disabled";
+		};
+
+		timer11: timer@48341000 {
+			compatible = "ti,am4372-timer","ti,am335x-timer";
+			reg = <0x48341000 0x400>;
+			interrupts = <GIC_SPI 134 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "timer11";
+			status = "disabled";
 		};
 
 		counter32k: counter@44e86000 {
 			compatible = "ti,am4372-counter32k","ti,omap-counter32k";
 			reg = <0x44e86000 0x40>;
+			ti,hwmods = "counter_32k";
+		};
+
+		rtc@44e3e000 {
+			compatible = "ti,am4372-rtc","ti,da830-rtc";
+			reg = <0x44e3e000 0x1000>;
+			interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH
+				      GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "rtc";
+			status = "disabled";
+		};
+
+		wdt@44e35000 {
+			compatible = "ti,am4372-wdt","ti,omap3-wdt";
+			reg = <0x44e35000 0x1000>;
+			interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "wd_timer2";
+			status = "disabled";
+		};
+
+		gpio0: gpio@44e07000 {
+			compatible = "ti,am4372-gpio","ti,omap4-gpio";
+			reg = <0x44e07000 0x1000>;
+			interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+			ti,hwmods = "gpio1";
+			status = "disabled";
+		};
+
+		gpio1: gpio@4804c000 {
+			compatible = "ti,am4372-gpio","ti,omap4-gpio";
+			reg = <0x4804c000 0x1000>;
+			interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+			ti,hwmods = "gpio2";
+			status = "disabled";
+		};
+
+		gpio2: gpio@481ac000 {
+			compatible = "ti,am4372-gpio","ti,omap4-gpio";
+			reg = <0x481ac000 0x1000>;
+			interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+			ti,hwmods = "gpio3";
+			status = "disabled";
+		};
+
+		gpio3: gpio@481ae000 {
+			compatible = "ti,am4372-gpio","ti,omap4-gpio";
+			reg = <0x481ae000 0x1000>;
+			interrupts = <GIC_SPI 62 IRQ_TYPE_LEVEL_HIGH>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+			ti,hwmods = "gpio4";
+			status = "disabled";
+		};
+
+		gpio4: gpio@48320000 {
+			compatible = "ti,am4372-gpio","ti,omap4-gpio";
+			reg = <0x48320000 0x1000>;
+			interrupts = <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+			ti,hwmods = "gpio5";
+			status = "disabled";
+		};
+
+		gpio5: gpio@48322000 {
+			compatible = "ti,am4372-gpio","ti,omap4-gpio";
+			reg = <0x48322000 0x1000>;
+			interrupts = <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>;
+			gpio-controller;
+			#gpio-cells = <2>;
+			interrupt-controller;
+			#interrupt-cells = <2>;
+			ti,hwmods = "gpio6";
+			status = "disabled";
+		};
+
+		i2c0: i2c@44e0b000 {
+			compatible = "ti,am4372-i2c","ti,omap4-i2c";
+			reg = <0x44e0b000 0x1000>;
+			interrupts = <GIC_SPI 70 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "i2c1";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		i2c1: i2c@4802a000 {
+			compatible = "ti,am4372-i2c","ti,omap4-i2c";
+			reg = <0x4802a000 0x1000>;
+			interrupts = <GIC_SPI 71 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "i2c2";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		i2c2: i2c@4819c000 {
+			compatible = "ti,am4372-i2c","ti,omap4-i2c";
+			reg = <0x4819c000 0x1000>;
+			interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "i2c3";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		spi0: spi@48030000 {
+			compatible = "ti,am4372-mcspi","ti,omap4-mcspi";
+			reg = <0x48030000 0x400>;
+			interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "spi0";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		spi1: spi@481a0000 {
+			compatible = "ti,am4372-mcspi","ti,omap4-mcspi";
+			reg = <0x481a0000 0x400>;
+			interrupts = <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "spi1";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		spi2: spi@481a2000 {
+			compatible = "ti,am4372-mcspi","ti,omap4-mcspi";
+			reg = <0x481a2000 0x400>;
+			interrupts = <GIC_SPI 126 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "spi2";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		spi3: spi@481a4000 {
+			compatible = "ti,am4372-mcspi","ti,omap4-mcspi";
+			reg = <0x481a4000 0x400>;
+			interrupts = <GIC_SPI 136 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "spi3";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		spi4: spi@48345000 {
+			compatible = "ti,am4372-mcspi","ti,omap4-mcspi";
+			reg = <0x48345000 0x400>;
+			interrupts = <GIC_SPI 137 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "spi4";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		mac: ethernet@4a100000 {
+			compatible = "ti,am4372-cpsw","ti,cpsw";
+			reg = <0x4a100000 0x800
+			       0x4a101200 0x100>;
+			interrupts = <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH
+				      GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH
+				      GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH
+				      GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "cpgmac0";
+			status = "disabled";
+		};
+
+		epwmss0: epwmss@48300000 {
+			compatible = "ti,am4372-pwmss","ti,am33xx-pwmss";
+			reg = <0x48300000 0x10>;
+			ti,hwmods = "epwmss0";
+			status = "disabled";
+		};
+
+		epwmss1: epwmss@48302000 {
+			compatible = "ti,am4372-pwmss","ti,am33xx-pwmss";
+			reg = <0x48302000 0x10>;
+			ti,hwmods = "epwmss1";
+			status = "disabled";
+		};
+
+		epwmss2: epwmss@48304000 {
+			compatible = "ti,am4372-pwmss","ti,am33xx-pwmss";
+			reg = <0x48304000 0x10>;
+			ti,hwmods = "epwmss2";
+			status = "disabled";
+		};
+
+		epwmss3: epwmss@48306000 {
+			compatible = "ti,am4372-pwmss","ti,am33xx-pwmss";
+			reg = <0x48306000 0x10>;
+			ti,hwmods = "epwmss3";
+			status = "disabled";
+		};
+
+		epwmss4: epwmss@48308000 {
+			compatible = "ti,am4372-pwmss","ti,am33xx-pwmss";
+			reg = <0x48308000 0x10>;
+			ti,hwmods = "epwmss4";
+			status = "disabled";
+		};
+
+		epwmss5: epwmss@4830a000 {
+			compatible = "ti,am4372-pwmss","ti,am33xx-pwmss";
+			reg = <0x4830a000 0x10>;
+			ti,hwmods = "epwmss5";
+			status = "disabled";
 		};
 	};
 };
-- 
cgit 


From adfe1473bda5bfb8d344a94fb17c0a929fcbd852 Mon Sep 17 00:00:00 2001
From: Marek Belisko <marek@goldelico.com>
Date: Thu, 15 Aug 2013 22:43:05 +0200
Subject: ARM: dts: Add devicetree for gta04 board.

This adds devicetree for gta04 (Openmoko next generation board) with necessary
support for mmc, usb, leds and button.

Signed-off-by: Marek Belisko <marek@goldelico.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/Makefile        |   1 +
 arch/arm/boot/dts/omap3-gta04.dts | 168 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 169 insertions(+)
 create mode 100644 arch/arm/boot/dts/omap3-gta04.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index b057b0e12d7c..1be0c95391d7 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -174,6 +174,7 @@ dtb-$(CONFIG_ARCH_OMAP2PLUS) += omap2420-h4.dtb \
 	omap3-evm.dtb \
 	omap3-n900.dtb \
 	omap3-tobi.dtb \
+	omap3-gta04.dtb \
 	omap3-igep0020.dtb \
 	omap3-igep0030.dtb \
 	omap4-panda.dtb \
diff --git a/arch/arm/boot/dts/omap3-gta04.dts b/arch/arm/boot/dts/omap3-gta04.dts
new file mode 100644
index 000000000000..a84684a95891
--- /dev/null
+++ b/arch/arm/boot/dts/omap3-gta04.dts
@@ -0,0 +1,168 @@
+/*
+ * Copyright (C) 2013 Marek Belisko <marek@goldelico.com>
+ *
+ * Based on omap3-beagle-xm.dts
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+/dts-v1/;
+
+#include "omap36xx.dtsi"
+
+/ {
+	model = "OMAP3 GTA04";
+	compatible = "ti,omap3-gta04", "ti,omap3";
+
+	cpus {
+		cpu@0 {
+			cpu0-supply = <&vcc>;
+		};
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x20000000>; /* 512 MB */
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		aux-button {
+			label = "aux";
+			linux,code = <169>;
+			gpios = <&gpio1 7 GPIO_ACTIVE_LOW>;
+			gpio-key,wakeup;
+		};
+	};
+};
+
+&omap3_pmx_core {
+	uart1_pins: pinmux_uart1_pins {
+		pinctrl-single,pins = <
+			0x152 (PIN_INPUT | MUX_MODE0)		/* uart1_rx.uart1_rx */
+			0x14c (PIN_OUTPUT |MUX_MODE0)		/* uart1_tx.uart1_tx */
+		>;
+	};
+
+	uart2_pins: pinmux_uart2_pins {
+		pinctrl-single,pins = <
+			0x14a (PIN_INPUT | MUX_MODE0)		/* uart2_rx.uart2_rx */
+			0x148 (PIN_OUTPUT | MUX_MODE0)		/* uart2_tx.uart2_tx */
+		>;
+	};
+
+	uart3_pins: pinmux_uart3_pins {
+		pinctrl-single,pins = <
+			0x16e (PIN_INPUT | MUX_MODE0)		/* uart3_rx.uart3_rx */
+			0x170 (PIN_OUTPUT | MUX_MODE0)		/* uart3_tx.uart3_tx */
+		>;
+	};
+
+	mmc1_pins: pinmux_mmc1_pins {
+		pinctrl-single,pins = <
+			0x114 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_clk.sdmmc1_clk */
+			0x116 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_cmd.sdmmc1_cmd */
+			0x118 (PIN_INPUT_PULLUP | MUX_MODE0) 	/* sdmmc1_dat0.sdmmc1_dat0 */
+			0x11a (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_dat1.sdmmc1_dat1 */
+			0x11c (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_dat2.sdmmc1_dat2 */
+			0x11e (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_dat3.sdmmc1_dat3 */
+		>;
+	};
+};
+
+&i2c1 {
+	clock-frequency = <2600000>;
+
+	twl: twl@48 {
+		reg = <0x48>;
+		interrupts = <7>; /* SYS_NIRQ cascaded to intc */
+		interrupt-parent = <&intc>;
+	};
+};
+
+#include "twl4030.dtsi"
+#include "twl4030_omap3.dtsi"
+
+&i2c2 {
+	clock-frequency = <400000>;
+
+	/* pressure sensor */
+	bmp085@77 {
+		compatible = "bosch,bmp085";
+		reg = <0x77>;
+	};
+
+	/* leds */
+	tca6507@45 {
+		compatible = "ti,tca6507";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		reg = <0x45>;
+
+		gta04_led0: red_aux@0 {
+			label = "gta04:red:aux";
+			reg = <0x0>;
+		};
+
+		gta04_led1: green_aux@1 {
+			label = "gta04:green:aux";
+			reg = <0x1>;
+		};
+
+		gta04_led3: red_power@3 {
+			label = "gta04:red:power";
+			reg = <0x3>;
+			linux,default-trigger = "default-on";
+		};
+
+		gta04_led4: green_power@4 {
+			label = "gta04:green:power";
+			reg = <0x4>;
+		};
+	};
+};
+
+&i2c3 {
+	clock-frequency = <100000>;
+};
+
+&usb_otg_hs {
+	interface-type = <0>;
+	usb-phy = <&usb2_phy>;
+	mode = <3>;
+	power = <50>;
+};
+
+&mmc1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc1_pins>;
+	vmmc-supply = <&vmmc1>;
+	vmmc_aux-supply = <&vsim>;
+	bus-width = <4>;
+};
+
+&mmc2 {
+	status = "disabled";
+};
+
+&mmc3 {
+	status = "disabled";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1_pins>;
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart2_pins>;
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart3_pins>;
+};
+
-- 
cgit 


From 36f496ac70cadaadc1b024a74c53013bb2461dd1 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Thu, 15 Aug 2013 13:18:28 +0300
Subject: ARM: dts: omap3-beagle: Make USB host pin naming consistent

Use a common naming scheme "mode0name.modename flags" for the
USB host pins to be consistent.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-beagle.dts | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/arch/arm/boot/dts/omap3-beagle.dts b/arch/arm/boot/dts/omap3-beagle.dts
index dfd83103657a..2e29e811dd42 100644
--- a/arch/arm/boot/dts/omap3-beagle.dts
+++ b/arch/arm/boot/dts/omap3-beagle.dts
@@ -101,18 +101,18 @@
 
 	hsusbb2_pins: pinmux_hsusbb2_pins {
 		pinctrl-single,pins = <
-			0x5c0 (PIN_OUTPUT | MUX_MODE3)		/* usbb2_ulpitll_clk.usbb1_ulpiphy_clk */
-			0x5c2 (PIN_OUTPUT | MUX_MODE3)		/* usbb2_ulpitll_clk.usbb1_ulpiphy_stp */
-			0x5c4 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* usbb2_ulpitll_clk.usbb1_ulpiphy_dir */
-			0x5c6 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* usbb2_ulpitll_clk.usbb1_ulpiphy_nxt */
-			0x5c8 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* usbb2_ulpitll_clk.usbb1_ulpiphy_dat0 */
-			0x5cA (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* usbb2_ulpitll_clk.usbb1_ulpiphy_dat1 */
-			0x1a4 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* usbb2_ulpitll_clk.usbb1_ulpiphy_dat2 */
-			0x1a6 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* usbb2_ulpitll_clk.usbb1_ulpiphy_dat3 */
-			0x1a8 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* usbb2_ulpitll_clk.usbb1_ulpiphy_dat4 */
-			0x1aa (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* usbb2_ulpitll_clk.usbb1_ulpiphy_dat5 */
-			0x1ac (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* usbb2_ulpitll_clk.usbb1_ulpiphy_dat6 */
-			0x1ae (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* usbb2_ulpitll_clk.usbb1_ulpiphy_dat7 */
+			0x5c0 (PIN_OUTPUT | MUX_MODE3)		/* etk_d10.hsusb2_clk */
+			0x5c2 (PIN_OUTPUT | MUX_MODE3)		/* etk_d11.hsusb2_stp */
+			0x5c4 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* etk_d12.hsusb2_dir */
+			0x5c6 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* etk_d13.hsusb2_nxt */
+			0x5c8 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* etk_d14.hsusb2_data0 */
+			0x5cA (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* etk_d15.hsusb2_data1 */
+			0x1a4 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* mcspi1_cs3.hsusb2_data2 */
+			0x1a6 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* mcspi2_clk.hsusb2_data7 */
+			0x1a8 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* mcspi2_simo.hsusb2_data4 */
+			0x1aa (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* mcspi2_somi.hsusb2_data5 */
+			0x1ac (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* mcspi2_cs0.hsusb2_data6 */
+			0x1ae (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* mcspi2_cs1.hsusb2_data3 */
 		>;
 	};
 
-- 
cgit 


From e3a412c9eed08a246d9542645d102c194059cb2b Mon Sep 17 00:00:00 2001
From: Felipe Balbi <balbi@ti.com>
Date: Wed, 21 Aug 2013 20:01:32 +0530
Subject: ARM: dts: OMAP5: add palmas-usb node

Without this node, there will be no palmas driver to notify
dwc3 that a cable has been connected and, without that, dwc3
will never initialize.

Signed-off-by: Felipe Balbi <balbi@ti.com>
[kishon@ti.com: added dt properties for enabling vbus/id interrupts
and fixed vbus-supply value after SMPS10 is modeled as 2 regulators]
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap5-uevm.dts | 12 ++++++++++++
 arch/arm/boot/dts/omap5.dtsi     |  2 +-
 2 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts
index 05b9b126f084..da25a14d919f 100644
--- a/arch/arm/boot/dts/omap5-uevm.dts
+++ b/arch/arm/boot/dts/omap5-uevm.dts
@@ -272,6 +272,13 @@
 		interrupt-controller;
 		#interrupt-cells = <2>;
 
+		extcon_usb3: palmas_usb {
+			compatible = "ti,palmas-usb-vid";
+			ti,enable-vbus-detection;
+			ti,enable-id-detection;
+			ti,wakeup;
+		};
+
 		palmas_pmic {
 			compatible = "ti,palmas-pmic";
 			interrupt-parent = <&palmas>;
@@ -479,6 +486,11 @@
 	phys = <0 &hsusb2_phy &hsusb3_phy>;
 };
 
+&usb3 {
+	extcon = <&extcon_usb3>;
+	vbus-supply = <&smps10_out1_reg>;
+};
+
 &mcspi1 {
 
 };
diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
index ecc06a99fd4d..6192c458bea1 100644
--- a/arch/arm/boot/dts/omap5.dtsi
+++ b/arch/arm/boot/dts/omap5.dtsi
@@ -634,7 +634,7 @@
 			ti,type = <2>;
 		};
 
-		omap_dwc3@4a020000 {
+		usb3: omap_dwc3@4a020000 {
 			compatible = "ti,dwc3";
 			ti,hwmods = "usb_otg_ss";
 			reg = <0x4a020000 0x10000>;
-- 
cgit 


From 511aaab0c41bef55e7a2b2b279c96c4d9a1cbfaa Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Mon, 30 Sep 2013 18:03:27 -0300
Subject: ARM: kirkwood: Remove unneeded MBus initialization

Since the MBus is initialized from the DT, it's not necessary to
call the legacy initialization.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/mach-kirkwood/board-dt.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c
index cdde73a07c1b..334439d8069c 100644
--- a/arch/arm/mach-kirkwood/board-dt.c
+++ b/arch/arm/mach-kirkwood/board-dt.c
@@ -72,13 +72,6 @@ static void __init kirkwood_dt_time_init(void)
 	clocksource_of_init();
 }
 
-static void __init kirkwood_dt_init_early(void)
-{
-	mvebu_mbus_init("marvell,kirkwood-mbus",
-			BRIDGE_WINS_BASE, BRIDGE_WINS_SZ,
-			DDR_WINDOW_CPU_BASE, DDR_WINDOW_CPU_SZ);
-}
-
 static void __init kirkwood_dt_init(void)
 {
 	pr_info("Kirkwood: %s, TCLK=%d.\n", kirkwood_id(), kirkwood_tclk);
@@ -122,7 +115,6 @@ static const char * const kirkwood_dt_board_compat[] = {
 DT_MACHINE_START(KIRKWOOD_DT, "Marvell Kirkwood (Flattened Device Tree)")
 	/* Maintainer: Jason Cooper <jason@lakedaemon.net> */
 	.map_io		= kirkwood_map_io,
-	.init_early	= kirkwood_dt_init_early,
 	.init_time	= kirkwood_dt_time_init,
 	.init_machine	= kirkwood_dt_init,
 	.restart	= kirkwood_restart,
-- 
cgit 


From 3839c08d3ae44cf39b26eecefdae07f7b2443e7e Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Mon, 30 Sep 2013 18:03:28 -0300
Subject: ARM: kirkwood: Remove unneeded PCIe clock adding

Since the PCIe devices is properly initialized from the DT, the clocks
are now referenced in the device tree nodes, and it's not needed
to have this hack to add them explicitly.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Tested-by: Arnaud Ebalard <arno@natisbad.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/mach-kirkwood/board-dt.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c
index 334439d8069c..d8b666c39fd1 100644
--- a/arch/arm/mach-kirkwood/board-dt.c
+++ b/arch/arm/mach-kirkwood/board-dt.c
@@ -44,14 +44,6 @@ static void __init kirkwood_legacy_clk_init(void)
 	clkspec.np = np;
 	clkspec.args_count = 1;
 
-	clkspec.args[0] = CGC_BIT_PEX0;
-	orion_clkdev_add("0", "pcie",
-			 of_clk_get_from_provider(&clkspec));
-
-	clkspec.args[0] = CGC_BIT_PEX1;
-	orion_clkdev_add("1", "pcie",
-			 of_clk_get_from_provider(&clkspec));
-
 	/*
 	 * The ethernet interfaces forget the MAC address assigned by
 	 * u-boot if the clocks are turned off. Until proper DT support
-- 
cgit 


From 9f352f0e6c0fa2dc608812df297769789b7ecc51 Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Date: Tue, 1 Oct 2013 11:58:00 -0600
Subject: PCI: mvebu: Dynamically detect if the PEX link is up to enable hot
 plug

Otherwise hotplugging the PEX doesn't work at all since the driver
detects the link state at probe time. Simply replacing the two tests
of haslink with a register read is enough to fix it.

Tested on kirkwood with repeated plug/unplug of the link partner.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 drivers/pci/host/pci-mvebu.c | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)

diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index 77f8a7c58597..10c0895e42b3 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -120,7 +120,6 @@ struct mvebu_pcie_port {
 	char *name;
 	void __iomem *base;
 	spinlock_t conf_lock;
-	int haslink;
 	u32 port;
 	u32 lane;
 	int devfn;
@@ -560,7 +559,7 @@ static int mvebu_pcie_wr_conf(struct pci_bus *bus, u32 devfn,
 	if (bus->number == 0)
 		return mvebu_sw_pci_bridge_write(port, where, size, val);
 
-	if (!port->haslink)
+	if (!mvebu_pcie_link_up(port))
 		return PCIBIOS_DEVICE_NOT_FOUND;
 
 	/*
@@ -602,7 +601,7 @@ static int mvebu_pcie_rd_conf(struct pci_bus *bus, u32 devfn, int where,
 	if (bus->number == 0)
 		return mvebu_sw_pci_bridge_read(port, where, size, val);
 
-	if (!port->haslink) {
+	if (!mvebu_pcie_link_up(port)) {
 		*val = 0xffffffff;
 		return PCIBIOS_DEVICE_NOT_FOUND;
 	}
@@ -950,14 +949,12 @@ static int mvebu_pcie_probe(struct platform_device *pdev)
 
 		mvebu_pcie_set_local_dev_nr(port, 1);
 
-		if (mvebu_pcie_link_up(port)) {
-			port->haslink = 1;
-			dev_info(&pdev->dev, "PCIe%d.%d: link up\n",
-				 port->port, port->lane);
-		} else {
-			port->haslink = 0;
-			dev_info(&pdev->dev, "PCIe%d.%d: link down\n",
-				 port->port, port->lane);
+		port->clk = of_clk_get_by_name(child, NULL);
+		if (IS_ERR(port->clk)) {
+			dev_err(&pdev->dev, "PCIe%d.%d: cannot get clock\n",
+			       port->port, port->lane);
+			iounmap(port->base);
+			continue;
 		}
 
 		port->dn = child;
-- 
cgit 


From ebd7d3ab50f960e780e7c825a42b5cb6e21ee376 Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Mon, 7 Oct 2013 22:25:11 +0200
Subject: ARM: kirkwood: retain MAC address for DT ethernet

Ethernet IP on Kirkwood SoCs loose their MAC address register content
if clock gated. To allow modular ethernet driver setups and gated clocks
also on non-DT capable bootloaders, we fixup port device nodes with no
valid MAC address property. This patch copies MAC address register
contents set up by bootloaders early, notably before ethernet clocks
are gated. While at it, also reorder call sequence in _dt_init.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Reviewed-by: Mike Turquette <mturquette@linaro.org>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/mach-kirkwood/board-dt.c | 85 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 83 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-kirkwood/board-dt.c b/arch/arm/mach-kirkwood/board-dt.c
index d8b666c39fd1..27c1877e6dda 100644
--- a/arch/arm/mach-kirkwood/board-dt.c
+++ b/arch/arm/mach-kirkwood/board-dt.c
@@ -13,6 +13,8 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_net.h>
 #include <linux/of_platform.h>
 #include <linux/clk-provider.h>
 #include <linux/clocksource.h>
@@ -58,6 +60,85 @@ static void __init kirkwood_legacy_clk_init(void)
 	clk_prepare_enable(clk);
 }
 
+#define MV643XX_ETH_MAC_ADDR_LOW	0x0414
+#define MV643XX_ETH_MAC_ADDR_HIGH	0x0418
+
+static void __init kirkwood_dt_eth_fixup(void)
+{
+	struct device_node *np;
+
+	/*
+	 * The ethernet interfaces forget the MAC address assigned by u-boot
+	 * if the clocks are turned off. Usually, u-boot on kirkwood boards
+	 * has no DT support to properly set local-mac-address property.
+	 * As a workaround, we get the MAC address from mv643xx_eth registers
+	 * and update the port device node if no valid MAC address is set.
+	 */
+	for_each_compatible_node(np, NULL, "marvell,kirkwood-eth-port") {
+		struct device_node *pnp = of_get_parent(np);
+		struct clk *clk;
+		struct property *pmac;
+		void __iomem *io;
+		u8 *macaddr;
+		u32 reg;
+
+		if (!pnp)
+			continue;
+
+		/* skip disabled nodes or nodes with valid MAC address*/
+		if (!of_device_is_available(pnp) || of_get_mac_address(np))
+			goto eth_fixup_skip;
+
+		clk = of_clk_get(pnp, 0);
+		if (IS_ERR(clk))
+			goto eth_fixup_skip;
+
+		io = of_iomap(pnp, 0);
+		if (!io)
+			goto eth_fixup_no_map;
+
+		/* ensure port clock is not gated to not hang CPU */
+		clk_prepare_enable(clk);
+
+		/* store MAC address register contents in local-mac-address */
+		pr_err(FW_INFO "%s: local-mac-address is not set\n",
+		       np->full_name);
+
+		pmac = kzalloc(sizeof(*pmac) + 6, GFP_KERNEL);
+		if (!pmac)
+			goto eth_fixup_no_mem;
+
+		pmac->value = pmac + 1;
+		pmac->length = 6;
+		pmac->name = kstrdup("local-mac-address", GFP_KERNEL);
+		if (!pmac->name) {
+			kfree(pmac);
+			goto eth_fixup_no_mem;
+		}
+
+		macaddr = pmac->value;
+		reg = readl(io + MV643XX_ETH_MAC_ADDR_HIGH);
+		macaddr[0] = (reg >> 24) & 0xff;
+		macaddr[1] = (reg >> 16) & 0xff;
+		macaddr[2] = (reg >> 8) & 0xff;
+		macaddr[3] = reg & 0xff;
+
+		reg = readl(io + MV643XX_ETH_MAC_ADDR_LOW);
+		macaddr[4] = (reg >> 8) & 0xff;
+		macaddr[5] = reg & 0xff;
+
+		of_update_property(np, pmac);
+
+eth_fixup_no_mem:
+		iounmap(io);
+		clk_disable_unprepare(clk);
+eth_fixup_no_map:
+		clk_put(clk);
+eth_fixup_skip:
+		of_node_put(pnp);
+	}
+}
+
 static void __init kirkwood_dt_time_init(void)
 {
 	of_clk_init(NULL);
@@ -82,12 +163,12 @@ static void __init kirkwood_dt_init(void)
 	kirkwood_l2_init();
 
 	kirkwood_cpufreq_init();
-
+	kirkwood_cpuidle_init();
 	/* Setup clocks for legacy devices */
 	kirkwood_legacy_clk_init();
 
 	kirkwood_pm_init();
-	kirkwood_cpuidle_init();
+	kirkwood_dt_eth_fixup();
 
 #ifdef CONFIG_KEXEC
 	kexec_reinit = kirkwood_enable_pcie;
-- 
cgit 


From 31a2c46cd94c6463b2b57b476e5a0fd154fee439 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 7 Oct 2013 23:36:56 +0100
Subject: spi/trace: Trace length of SPI messages on completion

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/trace/events/spi.h | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/include/trace/events/spi.h b/include/trace/events/spi.h
index a7b09072ce56..5e77e21f885a 100644
--- a/include/trace/events/spi.h
+++ b/include/trace/events/spi.h
@@ -80,12 +80,32 @@ DEFINE_EVENT(spi_message, spi_message_start,
 
 );
 
-DEFINE_EVENT(spi_message, spi_message_done,
+TRACE_EVENT(spi_message_done,
 
 	TP_PROTO(struct spi_message *msg),
 
-	TP_ARGS(msg)
+	TP_ARGS(msg),
+
+	TP_STRUCT__entry(
+		__field(        int,            bus_num         )
+		__field(        int,            chip_select     )
+		__field(        struct spi_message *,   msg     )
+		__field(        unsigned,       frame           )
+		__field(        unsigned,       actual          )
+	),
 
+	TP_fast_assign(
+		__entry->bus_num = msg->spi->master->bus_num;
+		__entry->chip_select = msg->spi->chip_select;
+		__entry->msg = msg;
+		__entry->frame = msg->frame_length;
+		__entry->actual = msg->actual_length;
+	),
+
+        TP_printk("spi%d.%d %p len=%u/%u", (int)__entry->bus_num,
+		  (int)__entry->chip_select,
+		  (struct spi_message *)__entry->msg,
+                  (unsigned)__entry->actual, (unsigned)__entry->frame)
 );
 
 #endif /* _TRACE_POWER_H */
-- 
cgit 


From 032b4c0cc321b7b14e4035997f6debd1b42cdbe2 Mon Sep 17 00:00:00 2001
From: Seungwon Jeon <tgih.jun@samsung.com>
Date: Fri, 4 Oct 2013 18:58:15 +0900
Subject: PCI: mvebu: add I/O access wrappers

This change adds wrapper functions for MMIO access to PCIe IP block.
And some 8/16-bit access are replaced by 32-bit.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 drivers/pci/host/pci-mvebu.c | 97 +++++++++++++++++++++++++-------------------
 1 file changed, 55 insertions(+), 42 deletions(-)

diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index 10c0895e42b3..73b6baea4879 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -140,29 +140,39 @@ struct mvebu_pcie_port {
 	size_t iowin_size;
 };
 
+static inline void mvebu_writel(struct mvebu_pcie_port *port, u32 val, u32 reg)
+{
+	writel(val, port->base + reg);
+}
+
+static inline u32 mvebu_readl(struct mvebu_pcie_port *port, u32 reg)
+{
+	return readl(port->base + reg);
+}
+
 static bool mvebu_pcie_link_up(struct mvebu_pcie_port *port)
 {
-	return !(readl(port->base + PCIE_STAT_OFF) & PCIE_STAT_LINK_DOWN);
+	return !(mvebu_readl(port, PCIE_STAT_OFF) & PCIE_STAT_LINK_DOWN);
 }
 
 static void mvebu_pcie_set_local_bus_nr(struct mvebu_pcie_port *port, int nr)
 {
 	u32 stat;
 
-	stat = readl(port->base + PCIE_STAT_OFF);
+	stat = mvebu_readl(port, PCIE_STAT_OFF);
 	stat &= ~PCIE_STAT_BUS;
 	stat |= nr << 8;
-	writel(stat, port->base + PCIE_STAT_OFF);
+	mvebu_writel(port, stat, PCIE_STAT_OFF);
 }
 
 static void mvebu_pcie_set_local_dev_nr(struct mvebu_pcie_port *port, int nr)
 {
 	u32 stat;
 
-	stat = readl(port->base + PCIE_STAT_OFF);
+	stat = mvebu_readl(port, PCIE_STAT_OFF);
 	stat &= ~PCIE_STAT_DEV;
 	stat |= nr << 16;
-	writel(stat, port->base + PCIE_STAT_OFF);
+	mvebu_writel(port, stat, PCIE_STAT_OFF);
 }
 
 /*
@@ -180,33 +190,34 @@ static void mvebu_pcie_setup_wins(struct mvebu_pcie_port *port)
 
 	/* First, disable and clear BARs and windows. */
 	for (i = 1; i < 3; i++) {
-		writel(0, port->base + PCIE_BAR_CTRL_OFF(i));
-		writel(0, port->base + PCIE_BAR_LO_OFF(i));
-		writel(0, port->base + PCIE_BAR_HI_OFF(i));
+		mvebu_writel(port, 0, PCIE_BAR_CTRL_OFF(i));
+		mvebu_writel(port, 0, PCIE_BAR_LO_OFF(i));
+		mvebu_writel(port, 0, PCIE_BAR_HI_OFF(i));
 	}
 
 	for (i = 0; i < 5; i++) {
-		writel(0, port->base + PCIE_WIN04_CTRL_OFF(i));
-		writel(0, port->base + PCIE_WIN04_BASE_OFF(i));
-		writel(0, port->base + PCIE_WIN04_REMAP_OFF(i));
+		mvebu_writel(port, 0, PCIE_WIN04_CTRL_OFF(i));
+		mvebu_writel(port, 0, PCIE_WIN04_BASE_OFF(i));
+		mvebu_writel(port, 0, PCIE_WIN04_REMAP_OFF(i));
 	}
 
-	writel(0, port->base + PCIE_WIN5_CTRL_OFF);
-	writel(0, port->base + PCIE_WIN5_BASE_OFF);
-	writel(0, port->base + PCIE_WIN5_REMAP_OFF);
+	mvebu_writel(port, 0, PCIE_WIN5_CTRL_OFF);
+	mvebu_writel(port, 0, PCIE_WIN5_BASE_OFF);
+	mvebu_writel(port, 0, PCIE_WIN5_REMAP_OFF);
 
 	/* Setup windows for DDR banks.  Count total DDR size on the fly. */
 	size = 0;
 	for (i = 0; i < dram->num_cs; i++) {
 		const struct mbus_dram_window *cs = dram->cs + i;
 
-		writel(cs->base & 0xffff0000,
-		       port->base + PCIE_WIN04_BASE_OFF(i));
-		writel(0, port->base + PCIE_WIN04_REMAP_OFF(i));
-		writel(((cs->size - 1) & 0xffff0000) |
-			(cs->mbus_attr << 8) |
-			(dram->mbus_dram_target_id << 4) | 1,
-		       port->base + PCIE_WIN04_CTRL_OFF(i));
+		mvebu_writel(port, cs->base & 0xffff0000,
+			     PCIE_WIN04_BASE_OFF(i));
+		mvebu_writel(port, 0, PCIE_WIN04_REMAP_OFF(i));
+		mvebu_writel(port,
+			     ((cs->size - 1) & 0xffff0000) |
+			     (cs->mbus_attr << 8) |
+			     (dram->mbus_dram_target_id << 4) | 1,
+			     PCIE_WIN04_CTRL_OFF(i));
 
 		size += cs->size;
 	}
@@ -216,41 +227,40 @@ static void mvebu_pcie_setup_wins(struct mvebu_pcie_port *port)
 		size = 1 << fls(size);
 
 	/* Setup BAR[1] to all DRAM banks. */
-	writel(dram->cs[0].base, port->base + PCIE_BAR_LO_OFF(1));
-	writel(0, port->base + PCIE_BAR_HI_OFF(1));
-	writel(((size - 1) & 0xffff0000) | 1,
-	       port->base + PCIE_BAR_CTRL_OFF(1));
+	mvebu_writel(port, dram->cs[0].base, PCIE_BAR_LO_OFF(1));
+	mvebu_writel(port, 0, PCIE_BAR_HI_OFF(1));
+	mvebu_writel(port, ((size - 1) & 0xffff0000) | 1,
+		     PCIE_BAR_CTRL_OFF(1));
 }
 
 static void mvebu_pcie_setup_hw(struct mvebu_pcie_port *port)
 {
-	u16 cmd;
-	u32 mask;
+	u32 cmd, mask;
 
 	/* Point PCIe unit MBUS decode windows to DRAM space. */
 	mvebu_pcie_setup_wins(port);
 
 	/* Master + slave enable. */
-	cmd = readw(port->base + PCIE_CMD_OFF);
+	cmd = mvebu_readl(port, PCIE_CMD_OFF);
 	cmd |= PCI_COMMAND_IO;
 	cmd |= PCI_COMMAND_MEMORY;
 	cmd |= PCI_COMMAND_MASTER;
-	writew(cmd, port->base + PCIE_CMD_OFF);
+	mvebu_writel(port, cmd, PCIE_CMD_OFF);
 
 	/* Enable interrupt lines A-D. */
-	mask = readl(port->base + PCIE_MASK_OFF);
+	mask = mvebu_readl(port, PCIE_MASK_OFF);
 	mask |= PCIE_MASK_ENABLE_INTS;
-	writel(mask, port->base + PCIE_MASK_OFF);
+	mvebu_writel(port, mask, PCIE_MASK_OFF);
 }
 
 static int mvebu_pcie_hw_rd_conf(struct mvebu_pcie_port *port,
 				 struct pci_bus *bus,
 				 u32 devfn, int where, int size, u32 *val)
 {
-	writel(PCIE_CONF_ADDR(bus->number, devfn, where),
-	       port->base + PCIE_CONF_ADDR_OFF);
+	mvebu_writel(port, PCIE_CONF_ADDR(bus->number, devfn, where),
+		     PCIE_CONF_ADDR_OFF);
 
-	*val = readl(port->base + PCIE_CONF_DATA_OFF);
+	*val = mvebu_readl(port, PCIE_CONF_DATA_OFF);
 
 	if (size == 1)
 		*val = (*val >> (8 * (where & 3))) & 0xff;
@@ -264,21 +274,24 @@ static int mvebu_pcie_hw_wr_conf(struct mvebu_pcie_port *port,
 				 struct pci_bus *bus,
 				 u32 devfn, int where, int size, u32 val)
 {
-	int ret = PCIBIOS_SUCCESSFUL;
+	u32 _val, shift = 8 * (where & 3);
 
-	writel(PCIE_CONF_ADDR(bus->number, devfn, where),
-	       port->base + PCIE_CONF_ADDR_OFF);
+	mvebu_writel(port, PCIE_CONF_ADDR(bus->number, devfn, where),
+		     PCIE_CONF_ADDR_OFF);
+	_val = mvebu_readl(port, PCIE_CONF_DATA_OFF);
 
 	if (size == 4)
-		writel(val, port->base + PCIE_CONF_DATA_OFF);
+		_val = val;
 	else if (size == 2)
-		writew(val, port->base + PCIE_CONF_DATA_OFF + (where & 3));
+		_val = (_val & ~(0xffff << shift)) | ((val & 0xffff) << shift);
 	else if (size == 1)
-		writeb(val, port->base + PCIE_CONF_DATA_OFF + (where & 3));
+		_val = (_val & ~(0xff << shift)) | ((val & 0xff) << shift);
 	else
-		ret = PCIBIOS_BAD_REGISTER_NUMBER;
+		return PCIBIOS_BAD_REGISTER_NUMBER;
 
-	return ret;
+	mvebu_writel(port, _val, PCIE_CONF_DATA_OFF);
+
+	return PCIBIOS_SUCCESSFUL;
 }
 
 static void mvebu_pcie_handle_iobase_change(struct mvebu_pcie_port *port)
-- 
cgit 


From d7f5baeedbdb48d4f5bb2b4f6f56f32b7f2f7aff Mon Sep 17 00:00:00 2001
From: Kevin Hilman <khilman@linaro.org>
Date: Mon, 7 Oct 2013 07:52:33 -0700
Subject: Documentation: arm/Marvell: clarify Armada SoCs that match 78xx0
 pattern

New users of Marvell SoCs will potentially be confused by the MVEBU
SoCs that match the 78xx0 pattern and thus which defconfig and mach-*
directory to be looking at.  Add a bit of clarification to README for
this.

Signed-off-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 Documentation/arm/Marvell/README | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/arm/Marvell/README b/Documentation/arm/Marvell/README
index 8f08a86e03b7..da0151db9964 100644
--- a/Documentation/arm/Marvell/README
+++ b/Documentation/arm/Marvell/README
@@ -88,6 +88,7 @@ EBU Armada family
         MV78230
         MV78260
         MV78460
+    NOTE: not to be confused with the non-SMP 78xx0 SoCs
 
   Product Brief: http://www.marvell.com/embedded-processors/armada-xp/assets/Marvell-ArmadaXP-SoC-product%20brief.pdf
   No public datasheet available.
-- 
cgit 


From f5072dfbac053200c8865c4fb15e4f020b7b5d1d Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 17 Sep 2013 14:26:46 +0900
Subject: PCI: mvebu: make local functions static

mvebu_pcie_add_bus(), mvebu_pcie_align_resource()  are used only
in this file. Thus, these local functions should be staticized
in order to fix the following sparse warnings:

drivers/pci/host/pci-mvebu.c:684:6: warning: symbol 'mvebu_pcie_add_bus' was not declared. Should it be static?
drivers/pci/host/pci-mvebu.c:690:17: warning: symbol 'mvebu_pcie_align_resource' was not declared. Should it be static?

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 drivers/pci/host/pci-mvebu.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index 73b6baea4879..80b2250ea19a 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -693,17 +693,17 @@ static struct pci_bus *mvebu_pcie_scan_bus(int nr, struct pci_sys_data *sys)
 	return bus;
 }
 
-void mvebu_pcie_add_bus(struct pci_bus *bus)
+static void mvebu_pcie_add_bus(struct pci_bus *bus)
 {
 	struct mvebu_pcie *pcie = sys_to_pcie(bus->sysdata);
 	bus->msi = pcie->msi;
 }
 
-resource_size_t mvebu_pcie_align_resource(struct pci_dev *dev,
-					  const struct resource *res,
-					  resource_size_t start,
-					  resource_size_t size,
-					  resource_size_t align)
+static resource_size_t mvebu_pcie_align_resource(struct pci_dev *dev,
+						const struct resource *res,
+						resource_size_t start,
+						resource_size_t size,
+						resource_size_t align)
 {
 	if (dev->bus->number != 0)
 		return start;
-- 
cgit 


From 8ff875e7f93e900e7a7e78f1c9c05a22b33c27cf Mon Sep 17 00:00:00 2001
From: Majunath Goudar <csmanjuvijay@gmail.com>
Date: Tue, 8 Oct 2013 15:59:01 +0530
Subject: ARM: mach-omap1: Fix omap1510_fpga_init_irq() implicit declarations.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This patch adds a omap1510_fpga_init_irq() inline dummy implementations
in arch/arm/mach-omap1/common.h. Without this patch,build system can
lead to issues. This was discovered during randconfig testing,in which
other than CONFIG_ARCH_OMAP15XX was enabled the leading to the following
error:

CC      arch/arm/mach-omap1/board-innovator.o
arch/arm/mach-omap1/board-innovator.c: In function ‘innovator_init’:
arch/arm/mach-omap1/board-innovator.c:377:3: error: implicit declaration of
function ‘omap1510_fpga_init_irq’ [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[1]: *** [arch/arm/mach-omap1/board-innovator.o] Error 1
make: *** [arch/arm/mach-omap1] Error 2

Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Cc: Tony Lindgren <tony@atomide.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-omap@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap1/common.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/mach-omap1/common.h b/arch/arm/mach-omap1/common.h
index abec019a5281..732f8ee2fcd2 100644
--- a/arch/arm/mach-omap1/common.h
+++ b/arch/arm/mach-omap1/common.h
@@ -46,6 +46,9 @@ static inline void omap7xx_map_io(void)
 void omap1510_fpga_init_irq(void);
 void omap15xx_map_io(void);
 #else
+static inline void omap1510_fpga_init_irq(void)
+{
+}
 static inline void omap15xx_map_io(void)
 {
 }
-- 
cgit 


From 49449c30c4d1514486364d1e0dbea6938914b86f Mon Sep 17 00:00:00 2001
From: "Geyslan G. Bem" <geyslan@gmail.com>
Date: Mon, 7 Oct 2013 19:16:59 -0300
Subject: x86: mkpiggy.c: Explicitly close the output file

Even though the resource is released when the application is closed or
when returned from main function, modify the code to make it obvious,
and to keep static analysis tools from complaining.

Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Link: http://lkml.kernel.org/r/1381184219-10985-1-git-send-email-geyslan@gmail.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/boot/compressed/mkpiggy.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/arch/x86/boot/compressed/mkpiggy.c b/arch/x86/boot/compressed/mkpiggy.c
index 958a641483dd..b669ab65bf6c 100644
--- a/arch/x86/boot/compressed/mkpiggy.c
+++ b/arch/x86/boot/compressed/mkpiggy.c
@@ -36,11 +36,12 @@ int main(int argc, char *argv[])
 	uint32_t olen;
 	long ilen;
 	unsigned long offs;
-	FILE *f;
+	FILE *f = NULL;
+	int retval = 1;
 
 	if (argc < 2) {
 		fprintf(stderr, "Usage: %s compressed_file\n", argv[0]);
-		return 1;
+		goto bail;
 	}
 
 	/* Get the information for the compressed kernel image first */
@@ -48,7 +49,7 @@ int main(int argc, char *argv[])
 	f = fopen(argv[1], "r");
 	if (!f) {
 		perror(argv[1]);
-		return 1;
+		goto bail;
 	}
 
 
@@ -58,12 +59,11 @@ int main(int argc, char *argv[])
 
 	if (fread(&olen, sizeof(olen), 1, f) != 1) {
 		perror(argv[1]);
-		return 1;
+		goto bail;
 	}
 
 	ilen = ftell(f);
 	olen = get_unaligned_le32(&olen);
-	fclose(f);
 
 	/*
 	 * Now we have the input (compressed) and output (uncompressed)
@@ -91,5 +91,9 @@ int main(int argc, char *argv[])
 	printf(".incbin \"%s\"\n", argv[1]);
 	printf("input_data_end:\n");
 
-	return 0;
+	retval = 0;
+bail:
+	if (f)
+		fclose(f);
+	return retval;
 }
-- 
cgit 


From a33f1788192d13165594f8ec6975dbae34502ec9 Mon Sep 17 00:00:00 2001
From: Pali Rohár <pali.rohar@gmail.com>
Date: Sun, 8 Sep 2013 09:43:29 +0200
Subject: ARM: OMAP3: Add secure function omap_smc3() which calling instruction
 smc #1
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Here is new version (v4) of omap secure part patch:

Other secure functions omap_smc1() and omap_smc2() calling instruction smc #0
but Nokia RX-51 board needs to call smc #1 for PPA access.

Signed-off-by: Ivaylo Dimitrov <freemangordon@abv.bg>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/omap-secure.h |  1 +
 arch/arm/mach-omap2/omap-smc.S    | 21 ++++++++++++++++++++-
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-omap2/omap-secure.h b/arch/arm/mach-omap2/omap-secure.h
index 0e729170c46b..c4586f42ea98 100644
--- a/arch/arm/mach-omap2/omap-secure.h
+++ b/arch/arm/mach-omap2/omap-secure.h
@@ -51,6 +51,7 @@
 extern u32 omap_secure_dispatcher(u32 idx, u32 flag, u32 nargs,
 				u32 arg1, u32 arg2, u32 arg3, u32 arg4);
 extern u32 omap_smc2(u32 id, u32 falg, u32 pargs);
+extern u32 omap_smc3(u32 id, u32 process, u32 flag, u32 pargs);
 extern phys_addr_t omap_secure_ram_mempool_base(void);
 extern int omap_secure_ram_reserve_memblock(void);
 
diff --git a/arch/arm/mach-omap2/omap-smc.S b/arch/arm/mach-omap2/omap-smc.S
index f6441c13cd8c..fd90125bffc7 100644
--- a/arch/arm/mach-omap2/omap-smc.S
+++ b/arch/arm/mach-omap2/omap-smc.S
@@ -1,9 +1,11 @@
 /*
- * OMAP44xx secure APIs file.
+ * OMAP34xx and OMAP44xx secure APIs file.
  *
  * Copyright (C) 2010 Texas Instruments, Inc.
  * Written by Santosh Shilimkar <santosh.shilimkar@ti.com>
  *
+ * Copyright (C) 2012 Ivaylo Dimitrov <freemangordon@abv.bg>
+ * Copyright (C) 2013 Pali Rohár <pali.rohar@gmail.com>
  *
  * This program is free software,you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -54,6 +56,23 @@ ENTRY(omap_smc2)
 	ldmfd   sp!, {r4-r12, pc}
 ENDPROC(omap_smc2)
 
+/**
+ * u32 omap_smc3(u32 service_id, u32 process_id, u32 flag, u32 pargs)
+ * Low level common routine for secure HAL and PPA APIs via smc #1
+ * r0 - @service_id: Secure Service ID
+ * r1 - @process_id: Process ID
+ * r2 - @flag: Flag to indicate the criticality of operation
+ * r3 - @pargs: Physical address of parameter list
+ */
+ENTRY(omap_smc3)
+	stmfd	sp!, {r4-r11, lr}
+	mov	r12, r0		@ Copy the secure service ID
+	mov	r6, #0xff	@ Indicate new Task call
+	dsb			@ Memory Barrier (not sure if needed, copied from omap_smc2)
+	smc	#1		@ Call PPA service
+	ldmfd	sp!, {r4-r11, pc}
+ENDPROC(omap_smc3)
+
 ENTRY(omap_modify_auxcoreboot0)
 	stmfd   sp!, {r1-r12, lr}
 	ldr	r12, =0x104
-- 
cgit 


From 4748a7240284b0f68bd47a66365c2cd561939830 Mon Sep 17 00:00:00 2001
From: Pali Rohár <pali.rohar@gmail.com>
Date: Wed, 18 Sep 2013 21:43:56 +0200
Subject: ARM: OMAP3: RX-51: ARM errata 430973 workaround
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Closed and signed Nokia X-Loader bootloader stored in RX-51 nand does not set
IBE bit in ACTLR and starting kernel in non-secure mode. So direct write to
ACTLR by our kernel does not working and the code for ARM errata 430973 in
commit 7ce236fcd6fd45b0441a2d49acb2ceb2de2e8a47 that sets IBE bit is a noop.

In order to have workaround for ARM errata 430973 from non-secure world on
RX-51 we needs Secure Monitor Call to set IBE BIT in ACTLR.

This patch adds RX-51 specific secure support code and sets IBE bit in ACTLR
during board init code for ARM errata 430973 workaround.

Note that new function rx51_secure_dispatcher() differs from existing
omap_secure_dispatcher(). It calling omap_smc3() and param[0] is nargs+1.

ARM errata 430973 workaround is needed for thumb-2 ISA compiled userspace
binaries. Without this workaround thumb-2 binaries crashing. So with this
patch it is possible to recompile and run applications/binaries with thumb-2
ISA on RX-51.

Signed-off-by: Ivaylo Dimitrov <freemangordon@abv.bg>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-rx51.c  | 12 ++++++++
 arch/arm/mach-omap2/omap-secure.c | 65 +++++++++++++++++++++++++++++++++++++++
 arch/arm/mach-omap2/omap-secure.h | 11 +++++++
 3 files changed, 88 insertions(+)

diff --git a/arch/arm/mach-omap2/board-rx51.c b/arch/arm/mach-omap2/board-rx51.c
index 7735105561d8..db168c9627a1 100644
--- a/arch/arm/mach-omap2/board-rx51.c
+++ b/arch/arm/mach-omap2/board-rx51.c
@@ -2,6 +2,8 @@
  * Board support file for Nokia N900 (aka RX-51).
  *
  * Copyright (C) 2007, 2008 Nokia
+ * Copyright (C) 2012 Ivaylo Dimitrov <freemangordon@abv.bg>
+ * Copyright (C) 2013 Pali Rohár <pali.rohar@gmail.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -31,7 +33,9 @@
 #include "mux.h"
 #include "gpmc.h"
 #include "pm.h"
+#include "soc.h"
 #include "sdram-nokia.h"
+#include "omap-secure.h"
 
 #define RX51_GPIO_SLEEP_IND 162
 
@@ -103,6 +107,14 @@ static void __init rx51_init(void)
 	usb_musb_init(&musb_board_data);
 	rx51_peripherals_init();
 
+	if (omap_type() == OMAP2_DEVICE_TYPE_SEC) {
+#ifdef CONFIG_ARM_ERRATA_430973
+		pr_info("RX-51: Enabling ARM errata 430973 workaround\n");
+		/* set IBE to 1 */
+		rx51_secure_update_aux_cr(BIT(6), 0);
+#endif
+	}
+
 	/* Ensure SDRC pins are mux'd for self-refresh */
 	omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
 	omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
diff --git a/arch/arm/mach-omap2/omap-secure.c b/arch/arm/mach-omap2/omap-secure.c
index b970440cffca..146a7c4e2a13 100644
--- a/arch/arm/mach-omap2/omap-secure.c
+++ b/arch/arm/mach-omap2/omap-secure.c
@@ -3,6 +3,8 @@
  *
  * Copyright (C) 2011 Texas Instruments, Inc.
  *	Santosh Shilimkar <santosh.shilimkar@ti.com>
+ * Copyright (C) 2012 Ivaylo Dimitrov <freemangordon@abv.bg>
+ * Copyright (C) 2013 Pali Rohár <pali.rohar@gmail.com>
  *
  *
  * This program is free software,you can redistribute it and/or modify
@@ -70,3 +72,66 @@ phys_addr_t omap_secure_ram_mempool_base(void)
 {
 	return omap_secure_memblock_base;
 }
+
+/**
+ * rx51_secure_dispatcher: Routine to dispatch secure PPA API calls
+ * @idx: The PPA API index
+ * @process: Process ID
+ * @flag: The flag indicating criticality of operation
+ * @nargs: Number of valid arguments out of four.
+ * @arg1, arg2, arg3 args4: Parameters passed to secure API
+ *
+ * Return the non-zero error value on failure.
+ *
+ * NOTE: rx51_secure_dispatcher differs from omap_secure_dispatcher because
+ *       it calling omap_smc3() instead omap_smc2() and param[0] is nargs+1
+ */
+u32 rx51_secure_dispatcher(u32 idx, u32 process, u32 flag, u32 nargs,
+			   u32 arg1, u32 arg2, u32 arg3, u32 arg4)
+{
+	u32 ret;
+	u32 param[5];
+
+	param[0] = nargs+1; /* RX-51 needs number of arguments + 1 */
+	param[1] = arg1;
+	param[2] = arg2;
+	param[3] = arg3;
+	param[4] = arg4;
+
+	/*
+	 * Secure API needs physical address
+	 * pointer for the parameters
+	 */
+	local_irq_disable();
+	local_fiq_disable();
+	flush_cache_all();
+	outer_clean_range(__pa(param), __pa(param + 5));
+	ret = omap_smc3(idx, process, flag, __pa(param));
+	flush_cache_all();
+	local_fiq_enable();
+	local_irq_enable();
+
+	return ret;
+}
+
+/**
+ * rx51_secure_update_aux_cr: Routine to modify the contents of Auxiliary Control Register
+ *  @set_bits: bits to set in ACR
+ *  @clr_bits: bits to clear in ACR
+ *
+ * Return the non-zero error value on failure.
+*/
+u32 rx51_secure_update_aux_cr(u32 set_bits, u32 clear_bits)
+{
+	u32 acr;
+
+	/* Read ACR */
+	asm volatile ("mrc p15, 0, %0, c1, c0, 1" : "=r" (acr));
+	acr &= ~clear_bits;
+	acr |= set_bits;
+
+	return rx51_secure_dispatcher(RX51_PPA_WRITE_ACR,
+				      0,
+				      FLAG_START_CRITICAL,
+				      1, acr, 0, 0, 0);
+}
diff --git a/arch/arm/mach-omap2/omap-secure.h b/arch/arm/mach-omap2/omap-secure.h
index c4586f42ea98..51b59c686a53 100644
--- a/arch/arm/mach-omap2/omap-secure.h
+++ b/arch/arm/mach-omap2/omap-secure.h
@@ -3,6 +3,8 @@
  *
  * Copyright (C) 2011 Texas Instruments, Inc.
  *	Santosh Shilimkar <santosh.shilimkar@ti.com>
+ * Copyright (C) 2012 Ivaylo Dimitrov <freemangordon@abv.bg>
+ * Copyright (C) 2013 Pali Rohár <pali.rohar@gmail.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -46,6 +48,11 @@
 #define OMAP4_PPA_L2_POR_INDEX		0x23
 #define OMAP4_PPA_CPU_ACTRL_SMP_INDEX	0x25
 
+/* Secure RX-51 PPA (Primary Protected Application) APIs */
+#define RX51_PPA_HWRNG			29
+#define RX51_PPA_L2_INVAL		40
+#define RX51_PPA_WRITE_ACR		42
+
 #ifndef __ASSEMBLER__
 
 extern u32 omap_secure_dispatcher(u32 idx, u32 flag, u32 nargs,
@@ -55,6 +62,10 @@ extern u32 omap_smc3(u32 id, u32 process, u32 flag, u32 pargs);
 extern phys_addr_t omap_secure_ram_mempool_base(void);
 extern int omap_secure_ram_reserve_memblock(void);
 
+extern u32 rx51_secure_dispatcher(u32 idx, u32 process, u32 flag, u32 nargs,
+				  u32 arg1, u32 arg2, u32 arg3, u32 arg4);
+extern u32 rx51_secure_update_aux_cr(u32 set_bits, u32 clear_bits);
+
 #ifdef CONFIG_OMAP4_ERRATA_I688
 extern int omap_barrier_reserve_memblock(void);
 #else
-- 
cgit 


From 122498738417c73943b71294c60ec34fc110f5d6 Mon Sep 17 00:00:00 2001
From: Andre Richter <andre.o.richter@gmail.com>
Date: Tue, 8 Oct 2013 11:22:22 +0200
Subject: x86, msr: Use file_inode(), not f_mapping->host

As discussed in [1], exchange f_mapping->host with file_inode().  This
is a bug, but happens to be non-manifest in this case.

[1] http://lkml.kernel.org/r/20131007190357.GA13318@ZenIV.linux.org.uk

Signed-off-by: Andre Richter <andre.o.richter@gmail.com>
Link: http://lkml.kernel.org/r/1381224142-3267-1-git-send-email-andre.o.richter@gmail.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/kernel/msr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/msr.c b/arch/x86/kernel/msr.c
index 88458faea2f8..05266b5aae22 100644
--- a/arch/x86/kernel/msr.c
+++ b/arch/x86/kernel/msr.c
@@ -46,7 +46,7 @@ static struct class *msr_class;
 static loff_t msr_seek(struct file *file, loff_t offset, int orig)
 {
 	loff_t ret;
-	struct inode *inode = file->f_mapping->host;
+	struct inode *inode = file_inode(file);
 
 	mutex_lock(&inode->i_mutex);
 	switch (orig) {
-- 
cgit 


From d2065e2b5bb3ec986f0f3ba044a81a136767d0b4 Mon Sep 17 00:00:00 2001
From: Pali Rohár <pali.rohar@gmail.com>
Date: Fri, 20 Sep 2013 15:25:07 +0200
Subject: RX-51: Add support for OMAP3 ROM Random Number Generator
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Adding this driver as platform device and only for RX-51 until somebody test if
it working also on other OMAP3 HS devices and until there will be generic ARM
way to deal with SMC calls.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
[tony@atomide.com: folded in the clock alias change]
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-rx51-peripherals.c | 19 +++++++++++++++++++
 arch/arm/mach-omap2/cclock3xxx_data.c        |  1 +
 arch/arm/mach-omap2/omap-secure.c            | 11 +++++++++++
 arch/arm/mach-omap2/omap-secure.h            |  1 +
 4 files changed, 32 insertions(+)

diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
index c3270c0f1fce..497d2604c7c5 100644
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -57,6 +57,8 @@
 #include "common-board-devices.h"
 #include "gpmc.h"
 #include "gpmc-onenand.h"
+#include "soc.h"
+#include "omap-secure.h"
 
 #define SYSTEM_REV_B_USES_VAUX3	0x1699
 #define SYSTEM_REV_S_USES_VAUX3 0x8
@@ -1289,6 +1291,22 @@ static void __init rx51_init_twl4030_hwmon(void)
 	platform_device_register(&madc_hwmon);
 }
 
+static struct platform_device omap3_rom_rng_device = {
+	.name		= "omap3-rom-rng",
+	.id		= -1,
+	.dev	= {
+		.platform_data	= rx51_secure_rng_call,
+	},
+};
+
+static void __init rx51_init_omap3_rom_rng(void)
+{
+	if (omap_type() == OMAP2_DEVICE_TYPE_SEC) {
+		pr_info("RX-51: Registring OMAP3 HWRNG device\n");
+		platform_device_register(&omap3_rom_rng_device);
+	}
+}
+
 void __init rx51_peripherals_init(void)
 {
 	rx51_i2c_init();
@@ -1309,5 +1327,6 @@ void __init rx51_peripherals_init(void)
 
 	rx51_charger_init();
 	rx51_init_twl4030_hwmon();
+	rx51_init_omap3_rom_rng();
 }
 
diff --git a/arch/arm/mach-omap2/cclock3xxx_data.c b/arch/arm/mach-omap2/cclock3xxx_data.c
index 334b76745900..03a2829beb8e 100644
--- a/arch/arm/mach-omap2/cclock3xxx_data.c
+++ b/arch/arm/mach-omap2/cclock3xxx_data.c
@@ -3275,6 +3275,7 @@ static struct omap_clk omap36xx_clks[] = {
 static struct omap_clk omap34xx_omap36xx_clks[] = {
 	CLK(NULL,	"aes1_ick",	&aes1_ick),
 	CLK("omap_rng",	"ick",		&rng_ick),
+	CLK("omap3-rom-rng",	"ick",	&rng_ick),
 	CLK(NULL,	"sha11_ick",	&sha11_ick),
 	CLK(NULL,	"des1_ick",	&des1_ick),
 	CLK(NULL,	"cam_mclk",	&cam_mclk),
diff --git a/arch/arm/mach-omap2/omap-secure.c b/arch/arm/mach-omap2/omap-secure.c
index 146a7c4e2a13..5ac122e88f67 100644
--- a/arch/arm/mach-omap2/omap-secure.c
+++ b/arch/arm/mach-omap2/omap-secure.c
@@ -135,3 +135,14 @@ u32 rx51_secure_update_aux_cr(u32 set_bits, u32 clear_bits)
 				      FLAG_START_CRITICAL,
 				      1, acr, 0, 0, 0);
 }
+
+/**
+ * rx51_secure_rng_call: Routine for HW random generator
+ */
+u32 rx51_secure_rng_call(u32 ptr, u32 count, u32 flag)
+{
+	return rx51_secure_dispatcher(RX51_PPA_HWRNG,
+				      0,
+				      NO_FLAG,
+				      3, ptr, count, flag, 0);
+}
diff --git a/arch/arm/mach-omap2/omap-secure.h b/arch/arm/mach-omap2/omap-secure.h
index 51b59c686a53..f6cabb0033fc 100644
--- a/arch/arm/mach-omap2/omap-secure.h
+++ b/arch/arm/mach-omap2/omap-secure.h
@@ -65,6 +65,7 @@ extern int omap_secure_ram_reserve_memblock(void);
 extern u32 rx51_secure_dispatcher(u32 idx, u32 process, u32 flag, u32 nargs,
 				  u32 arg1, u32 arg2, u32 arg3, u32 arg4);
 extern u32 rx51_secure_update_aux_cr(u32 set_bits, u32 clear_bits);
+extern u32 rx51_secure_rng_call(u32 ptr, u32 count, u32 flag);
 
 #ifdef CONFIG_OMAP4_ERRATA_I688
 extern int omap_barrier_reserve_memblock(void);
-- 
cgit 


From a24b88b56074424a413acc2d2a517fb82f5e7c2f Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Mon, 7 Oct 2013 19:51:57 -0700
Subject: ath10k: Fix bug in max. VHT A-MPDU size

For VHT peers, the maximum A-MPDU size has to be calculated
from the VHT capabilities element and not the HT-cap. The formula
is the same, but a higher value is used in VHT, allowing larger
aggregates to be transmitted.

The patch contains a workaround for some Netgear/Linksys APs that
report Rx A-MPDU factor incorrectly.

Tested-by: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 4b7c9494890c..049eca2eb0c9 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1033,14 +1033,27 @@ static void ath10k_peer_assoc_h_vht(struct ath10k *ar,
 				    struct wmi_peer_assoc_complete_arg *arg)
 {
 	const struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
+	u8 ampdu_factor;
 
 	if (!vht_cap->vht_supported)
 		return;
 
 	arg->peer_flags |= WMI_PEER_VHT;
-
 	arg->peer_vht_caps = vht_cap->cap;
 
+
+	ampdu_factor = (vht_cap->cap &
+			IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK) >>
+		       IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_SHIFT;
+
+	/* Workaround: Some Netgear/Linksys 11ac APs set Rx A-MPDU factor to
+	 * zero in VHT IE. Using it would result in degraded throughput.
+	 * arg->peer_max_mpdu at this point contains HT max_mpdu so keep
+	 * it if VHT max_mpdu is smaller. */
+	arg->peer_max_mpdu = max(arg->peer_max_mpdu,
+				 (1U << (IEEE80211_HT_MAX_AMPDU_FACTOR +
+					ampdu_factor)) - 1);
+
 	if (sta->bandwidth == IEEE80211_STA_RX_BW_80)
 		arg->peer_flags |= WMI_PEER_80MHZ;
 
-- 
cgit 


From 33bc801dddc14f0f96b79e453ec51cecfe5ed612 Mon Sep 17 00:00:00 2001
From: Wei Liu <wei.liu2@citrix.com>
Date: Tue, 8 Oct 2013 10:54:21 +0100
Subject: Revert "xen-netback: improve ring effeciency for guest RX"

This reverts commit 4f0581d25827d5e864bcf07b05d73d0d12a20a5c.

The named changeset is causing problem. Let's aim to make this part less
fragile before trying to improve things.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Annie Li <annie.li@oracle.com>
Cc: Matt Wilson <msw@amazon.com>
Cc: Xi Xiong <xixiong@amazon.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Paul Durrant <paul.durrant@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/xen-netback/netback.c | 144 ++++++++++++++++++++++----------------
 1 file changed, 83 insertions(+), 61 deletions(-)

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index d0b0feb035fb..f3e591c611de 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -47,14 +47,6 @@
 #include <asm/xen/hypercall.h>
 #include <asm/xen/page.h>
 
-/* SKB control block overlay is used to store useful information when
- * doing guest RX.
- */
-struct skb_cb_overlay {
-	int meta_slots_used;
-	int peek_slots_count;
-};
-
 /* Provide an option to disable split event channels at load time as
  * event channels are limited resource. Split event channels are
  * enabled by default.
@@ -220,6 +212,49 @@ static bool start_new_rx_buffer(int offset, unsigned long size, int head)
 	return false;
 }
 
+struct xenvif_count_slot_state {
+	unsigned long copy_off;
+	bool head;
+};
+
+unsigned int xenvif_count_frag_slots(struct xenvif *vif,
+				     unsigned long offset, unsigned long size,
+				     struct xenvif_count_slot_state *state)
+{
+	unsigned count = 0;
+
+	offset &= ~PAGE_MASK;
+
+	while (size > 0) {
+		unsigned long bytes;
+
+		bytes = PAGE_SIZE - offset;
+
+		if (bytes > size)
+			bytes = size;
+
+		if (start_new_rx_buffer(state->copy_off, bytes, state->head)) {
+			count++;
+			state->copy_off = 0;
+		}
+
+		if (state->copy_off + bytes > MAX_BUFFER_OFFSET)
+			bytes = MAX_BUFFER_OFFSET - state->copy_off;
+
+		state->copy_off += bytes;
+
+		offset += bytes;
+		size -= bytes;
+
+		if (offset == PAGE_SIZE)
+			offset = 0;
+
+		state->head = false;
+	}
+
+	return count;
+}
+
 /*
  * Figure out how many ring slots we're going to need to send @skb to
  * the guest. This function is essentially a dry run of
@@ -227,53 +262,40 @@ static bool start_new_rx_buffer(int offset, unsigned long size, int head)
  */
 unsigned int xenvif_count_skb_slots(struct xenvif *vif, struct sk_buff *skb)
 {
+	struct xenvif_count_slot_state state;
 	unsigned int count;
-	int i, copy_off;
-	struct skb_cb_overlay *sco;
+	unsigned char *data;
+	unsigned i;
 
-	count = DIV_ROUND_UP(skb_headlen(skb), PAGE_SIZE);
+	state.head = true;
+	state.copy_off = 0;
 
-	copy_off = skb_headlen(skb) % PAGE_SIZE;
+	/* Slot for the first (partial) page of data. */
+	count = 1;
 
+	/* Need a slot for the GSO prefix for GSO extra data? */
 	if (skb_shinfo(skb)->gso_size)
 		count++;
 
-	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
-		unsigned long size = skb_frag_size(&skb_shinfo(skb)->frags[i]);
-		unsigned long offset = skb_shinfo(skb)->frags[i].page_offset;
-		unsigned long bytes;
-
-		offset &= ~PAGE_MASK;
-
-		while (size > 0) {
-			BUG_ON(offset >= PAGE_SIZE);
-			BUG_ON(copy_off > MAX_BUFFER_OFFSET);
-
-			bytes = PAGE_SIZE - offset;
-
-			if (bytes > size)
-				bytes = size;
+	data = skb->data;
+	while (data < skb_tail_pointer(skb)) {
+		unsigned long offset = offset_in_page(data);
+		unsigned long size = PAGE_SIZE - offset;
 
-			if (start_new_rx_buffer(copy_off, bytes, 0)) {
-				count++;
-				copy_off = 0;
-			}
+		if (data + size > skb_tail_pointer(skb))
+			size = skb_tail_pointer(skb) - data;
 
-			if (copy_off + bytes > MAX_BUFFER_OFFSET)
-				bytes = MAX_BUFFER_OFFSET - copy_off;
+		count += xenvif_count_frag_slots(vif, offset, size, &state);
 
-			copy_off += bytes;
+		data += size;
+	}
 
-			offset += bytes;
-			size -= bytes;
+	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
+		unsigned long size = skb_frag_size(&skb_shinfo(skb)->frags[i]);
+		unsigned long offset = skb_shinfo(skb)->frags[i].page_offset;
 
-			if (offset == PAGE_SIZE)
-				offset = 0;
-		}
+		count += xenvif_count_frag_slots(vif, offset, size, &state);
 	}
-
-	sco = (struct skb_cb_overlay *)skb->cb;
-	sco->peek_slots_count = count;
 	return count;
 }
 
@@ -305,11 +327,14 @@ static struct xenvif_rx_meta *get_next_rx_buffer(struct xenvif *vif,
 	return meta;
 }
 
-/* Set up the grant operations for this fragment. */
+/*
+ * Set up the grant operations for this fragment. If it's a flipping
+ * interface, we also set up the unmap request from here.
+ */
 static void xenvif_gop_frag_copy(struct xenvif *vif, struct sk_buff *skb,
 				 struct netrx_pending_operations *npo,
 				 struct page *page, unsigned long size,
-				 unsigned long offset, int head, int *first)
+				 unsigned long offset, int *head)
 {
 	struct gnttab_copy *copy_gop;
 	struct xenvif_rx_meta *meta;
@@ -333,12 +358,12 @@ static void xenvif_gop_frag_copy(struct xenvif *vif, struct sk_buff *skb,
 		if (bytes > size)
 			bytes = size;
 
-		if (start_new_rx_buffer(npo->copy_off, bytes, head)) {
+		if (start_new_rx_buffer(npo->copy_off, bytes, *head)) {
 			/*
 			 * Netfront requires there to be some data in the head
 			 * buffer.
 			 */
-			BUG_ON(*first);
+			BUG_ON(*head);
 
 			meta = get_next_rx_buffer(vif, npo);
 		}
@@ -372,10 +397,10 @@ static void xenvif_gop_frag_copy(struct xenvif *vif, struct sk_buff *skb,
 		}
 
 		/* Leave a gap for the GSO descriptor. */
-		if (*first && skb_shinfo(skb)->gso_size && !vif->gso_prefix)
+		if (*head && skb_shinfo(skb)->gso_size && !vif->gso_prefix)
 			vif->rx.req_cons++;
 
-		*first = 0; /* There must be something in this buffer now. */
+		*head = 0; /* There must be something in this buffer now. */
 
 	}
 }
@@ -401,7 +426,7 @@ static int xenvif_gop_skb(struct sk_buff *skb,
 	struct xen_netif_rx_request *req;
 	struct xenvif_rx_meta *meta;
 	unsigned char *data;
-	int first = 1;
+	int head = 1;
 	int old_meta_prod;
 
 	old_meta_prod = npo->meta_prod;
@@ -437,7 +462,7 @@ static int xenvif_gop_skb(struct sk_buff *skb,
 			len = skb_tail_pointer(skb) - data;
 
 		xenvif_gop_frag_copy(vif, skb, npo,
-				     virt_to_page(data), len, offset, 1, &first);
+				     virt_to_page(data), len, offset, &head);
 		data += len;
 	}
 
@@ -446,7 +471,7 @@ static int xenvif_gop_skb(struct sk_buff *skb,
 				     skb_frag_page(&skb_shinfo(skb)->frags[i]),
 				     skb_frag_size(&skb_shinfo(skb)->frags[i]),
 				     skb_shinfo(skb)->frags[i].page_offset,
-				     0, &first);
+				     &head);
 	}
 
 	return npo->meta_prod - old_meta_prod;
@@ -504,6 +529,10 @@ static void xenvif_add_frag_responses(struct xenvif *vif, int status,
 	}
 }
 
+struct skb_cb_overlay {
+	int meta_slots_used;
+};
+
 static void xenvif_kick_thread(struct xenvif *vif)
 {
 	wake_up(&vif->wq);
@@ -534,26 +563,19 @@ void xenvif_rx_action(struct xenvif *vif)
 	count = 0;
 
 	while ((skb = skb_dequeue(&vif->rx_queue)) != NULL) {
-		RING_IDX old_rx_req_cons;
-
 		vif = netdev_priv(skb->dev);
 		nr_frags = skb_shinfo(skb)->nr_frags;
 
-		old_rx_req_cons = vif->rx.req_cons;
 		sco = (struct skb_cb_overlay *)skb->cb;
 		sco->meta_slots_used = xenvif_gop_skb(skb, &npo);
 
-		count += vif->rx.req_cons - old_rx_req_cons;
+		count += nr_frags + 1;
 
 		__skb_queue_tail(&rxq, skb);
 
-		skb = skb_peek(&vif->rx_queue);
-		if (skb == NULL)
-			break;
-		sco = (struct skb_cb_overlay *)skb->cb;
-
 		/* Filled the batch queue? */
-		if (count + sco->peek_slots_count >= XEN_NETIF_RX_RING_SIZE)
+		/* XXX FIXME: RX path dependent on MAX_SKB_FRAGS */
+		if (count + MAX_SKB_FRAGS >= XEN_NETIF_RX_RING_SIZE)
 			break;
 	}
 
-- 
cgit 


From 612c337306f00dc8d396830212de51c475844791 Mon Sep 17 00:00:00 2001
From: Masatake YAMATO <yamato@redhat.com>
Date: Fri, 4 Oct 2013 11:34:21 +0900
Subject: veth: Showing peer of veth type dev in ip link (kernel side)

ip link has ability to show extra information of net work device if
kernel provides sunh information. With this patch veth driver can
provide its peer ifindex information to ip command via netlink
interface.

Signed-off-by: Masatake YAMATO <yamato@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/veth.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index eee1f19ef1e9..54187b9c0efc 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -434,6 +434,25 @@ static const struct nla_policy veth_policy[VETH_INFO_MAX + 1] = {
 	[VETH_INFO_PEER]	= { .len = sizeof(struct ifinfomsg) },
 };
 
+static size_t veth_get_size(const struct net_device *dev)
+{
+	return nla_total_size(sizeof(u64)) + /* VETH_INFO_PEER */
+		0;
+}
+
+static int veth_fill_info(struct sk_buff *skb, const struct net_device *dev)
+{
+	struct veth_priv *priv = netdev_priv(dev);
+	struct net_device *peer = rtnl_dereference(priv->peer);
+	u64 peer_ifindex;
+
+	peer_ifindex = peer ? peer->ifindex : 0;
+	if (nla_put_u64(skb, VETH_INFO_PEER, peer_ifindex))
+		return -EMSGSIZE;
+
+	return 0;
+}
+
 static struct rtnl_link_ops veth_link_ops = {
 	.kind		= DRV_NAME,
 	.priv_size	= sizeof(struct veth_priv),
@@ -443,6 +462,8 @@ static struct rtnl_link_ops veth_link_ops = {
 	.dellink	= veth_dellink,
 	.policy		= veth_policy,
 	.maxtype	= VETH_INFO_MAX,
+	.get_size	= veth_get_size,
+	.fill_info	= veth_fill_info,
 };
 
 /*
-- 
cgit 


From 2900a579abcea13e4e77c40f89eb16eeecb5508e Mon Sep 17 00:00:00 2001
From: Mark Tinguely <tinguely@sgi.com>
Date: Wed, 2 Oct 2013 16:00:06 -0500
Subject: xfs: add the inode directory type support to XFS_IOC_FSGEOM

Add the inode type directory type support to XFS_IOC_FSGEOM
so that xfs_repair/xfs_info knows if the superblock v4 filesystem
enabled the feature.

Signed-off-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_fs.h    | 4 ++--
 fs/xfs/xfs_fsops.c | 4 +++-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h
index 18272c766a50..c5fc116dfaa3 100644
--- a/fs/xfs/xfs_fs.h
+++ b/fs/xfs/xfs_fs.h
@@ -233,11 +233,11 @@ typedef struct xfs_fsop_resblks {
 #define XFS_FSOP_GEOM_FLAGS_LOGV2	0x0100	/* log format version 2	*/
 #define XFS_FSOP_GEOM_FLAGS_SECTOR	0x0200	/* sector sizes >1BB	*/
 #define XFS_FSOP_GEOM_FLAGS_ATTR2	0x0400	/* inline attributes rework */
-#define XFS_FSOP_GEOM_FLAGS_PROJID32	0x0800  /* 32-bit project IDs	*/
+#define XFS_FSOP_GEOM_FLAGS_PROJID32	0x0800	/* 32-bit project IDs	*/
 #define XFS_FSOP_GEOM_FLAGS_DIRV2CI	0x1000	/* ASCII only CI names	*/
 #define XFS_FSOP_GEOM_FLAGS_LAZYSB	0x4000	/* lazy superblock counters */
 #define XFS_FSOP_GEOM_FLAGS_V5SB	0x8000	/* version 5 superblock */
-
+#define XFS_FSOP_GEOM_FLAGS_FTYPE	0x10000	/* inode directory types */
 
 /*
  * Minimum and maximum sizes need for growth checks.
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index e64ee5288b86..fdae4ec5f21b 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -101,7 +101,9 @@ xfs_fs_geometry(
 			(xfs_sb_version_hasprojid32bit(&mp->m_sb) ?
 				XFS_FSOP_GEOM_FLAGS_PROJID32 : 0) |
 			(xfs_sb_version_hascrc(&mp->m_sb) ?
-				XFS_FSOP_GEOM_FLAGS_V5SB : 0);
+				XFS_FSOP_GEOM_FLAGS_V5SB : 0) |
+			(xfs_sb_version_hasftype(&mp->m_sb) ?
+				XFS_FSOP_GEOM_FLAGS_FTYPE : 0);
 		geo->logsectsize = xfs_sb_version_hassector(&mp->m_sb) ?
 				mp->m_sb.sb_logsectsize : BBSIZE;
 		geo->rtsectsize = mp->m_sb.sb_blocksize;
-- 
cgit 


From feeea8f34c24406b8a8b4f5e92d5949c4a066dda Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Tue, 9 Jul 2013 12:51:51 -0400
Subject: ARM: dts: keystone: Add clock tree data to devicetree

Add clock tree for Keystone 2 based SOCs.

Cc: Mike Turquette <mturquette@linaro.org>

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
 arch/arm/boot/dts/keystone-clocks.dtsi | 821 +++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/keystone.dts         |   2 +
 2 files changed, 823 insertions(+)
 create mode 100644 arch/arm/boot/dts/keystone-clocks.dtsi

diff --git a/arch/arm/boot/dts/keystone-clocks.dtsi b/arch/arm/boot/dts/keystone-clocks.dtsi
new file mode 100644
index 000000000000..d6713b113258
--- /dev/null
+++ b/arch/arm/boot/dts/keystone-clocks.dtsi
@@ -0,0 +1,821 @@
+/*
+ * Device Tree Source for Keystone 2 clock tree
+ *
+ * Copyright (C) 2013 Texas Instruments, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+clocks {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	ranges;
+
+	refclkmain: refclkmain {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <122880000>;
+		clock-output-names = "refclk-main";
+	};
+
+	mainpllclk: mainpllclk@2310110 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,main-pll-clock";
+		clocks = <&refclkmain>;
+		reg = <0x02620350 4>, <0x02310110 4>;
+		reg-names = "control", "multiplier";
+		fixed-postdiv = <2>;
+	};
+
+	papllclk: papllclk@2620358 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,pll-clock";
+		clocks = <&refclkmain>;
+		clock-output-names = "pa-pll-clk";
+		reg = <0x02620358 4>;
+		reg-names = "control";
+		fixed-postdiv = <6>;
+	};
+
+	ddr3allclk: ddr3apllclk@2620360 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,pll-clock";
+		clocks = <&refclkmain>;
+		clock-output-names = "ddr-3a-pll-clk";
+		reg = <0x02620360 4>;
+		reg-names = "control";
+		fixed-postdiv = <6>;
+	};
+
+	ddr3bllclk: ddr3bpllclk@2620368 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,pll-clock";
+		clocks = <&refclkmain>;
+		clock-output-names = "ddr-3b-pll-clk";
+		reg = <0x02620368 4>;
+		reg-names = "control";
+		fixed-postdiv = <6>;
+	};
+
+	armpllclk: armpllclk@2620370 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,pll-clock";
+		clocks = <&refclkmain>;
+		clock-output-names = "arm-pll-clk";
+		reg = <0x02620370 4>;
+		reg-names = "control";
+		fixed-postdiv = <6>;
+	};
+
+	mainmuxclk: mainmuxclk@2310108 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,pll-mux-clock";
+		clocks = <&mainpllclk>, <&refclkmain>;
+		reg = <0x02310108 4>;
+		bit-shift = <23>;
+		bit-mask = <1>;
+		clock-output-names = "mainmuxclk";
+	};
+
+	chipclk1: chipclk1 {
+		#clock-cells = <0>;
+		compatible = "fixed-factor-clock";
+		clocks = <&mainmuxclk>;
+		clock-div = <1>;
+		clock-mult = <1>;
+		clock-output-names = "chipclk1";
+	};
+
+	chipclk1rstiso: chipclk1rstiso {
+		#clock-cells = <0>;
+		compatible = "fixed-factor-clock";
+		clocks = <&mainmuxclk>;
+		clock-div = <1>;
+		clock-mult = <1>;
+		clock-output-names = "chipclk1rstiso";
+	};
+
+	gemtraceclk: gemtraceclk@2310120 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,pll-divider-clock";
+		clocks = <&mainmuxclk>;
+		reg = <0x02310120 4>;
+		bit-shift = <0>;
+		bit-mask = <8>;
+		clock-output-names = "gemtraceclk";
+	};
+
+	chipstmxptclk: chipstmxptclk {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,pll-divider-clock";
+		clocks = <&mainmuxclk>;
+		reg = <0x02310164 4>;
+		bit-shift = <0>;
+		bit-mask = <8>;
+		clock-output-names = "chipstmxptclk";
+	};
+
+	chipclk12: chipclk12 {
+		#clock-cells = <0>;
+		compatible = "fixed-factor-clock";
+		clocks = <&chipclk1>;
+		clock-div = <2>;
+		clock-mult = <1>;
+		clock-output-names = "chipclk12";
+	};
+
+	chipclk13: chipclk13 {
+		#clock-cells = <0>;
+		compatible = "fixed-factor-clock";
+		clocks = <&chipclk1>;
+		clock-div = <3>;
+		clock-mult = <1>;
+		clock-output-names = "chipclk13";
+	};
+
+	chipclk14: chipclk14 {
+		#clock-cells = <0>;
+		compatible = "fixed-factor-clock";
+		clocks = <&chipclk1>;
+		clock-div = <4>;
+		clock-mult = <1>;
+		clock-output-names = "chipclk14";
+	};
+
+	chipclk16: chipclk16 {
+		#clock-cells = <0>;
+		compatible = "fixed-factor-clock";
+		clocks = <&chipclk1>;
+		clock-div = <6>;
+		clock-mult = <1>;
+		clock-output-names = "chipclk16";
+	};
+
+	chipclk112: chipclk112 {
+		#clock-cells = <0>;
+		compatible = "fixed-factor-clock";
+		clocks = <&chipclk1>;
+		clock-div = <12>;
+		clock-mult = <1>;
+		clock-output-names = "chipclk112";
+	};
+
+	chipclk124: chipclk124 {
+		#clock-cells = <0>;
+		compatible = "fixed-factor-clock";
+		clocks = <&chipclk1>;
+		clock-div = <24>;
+		clock-mult = <1>;
+		clock-output-names = "chipclk114";
+	};
+
+	chipclk1rstiso13: chipclk1rstiso13 {
+		#clock-cells = <0>;
+		compatible = "fixed-factor-clock";
+		clocks = <&chipclk1rstiso>;
+		clock-div = <3>;
+		clock-mult = <1>;
+		clock-output-names = "chipclk1rstiso13";
+	};
+
+	chipclk1rstiso14: chipclk1rstiso14 {
+		#clock-cells = <0>;
+		compatible = "fixed-factor-clock";
+		clocks = <&chipclk1rstiso>;
+		clock-div = <4>;
+		clock-mult = <1>;
+		clock-output-names = "chipclk1rstiso14";
+	};
+
+	chipclk1rstiso16: chipclk1rstiso16 {
+		#clock-cells = <0>;
+		compatible = "fixed-factor-clock";
+		clocks = <&chipclk1rstiso>;
+		clock-div = <6>;
+		clock-mult = <1>;
+		clock-output-names = "chipclk1rstiso16";
+	};
+
+	chipclk1rstiso112: chipclk1rstiso112 {
+		#clock-cells = <0>;
+		compatible = "fixed-factor-clock";
+		clocks = <&chipclk1rstiso>;
+		clock-div = <12>;
+		clock-mult = <1>;
+		clock-output-names = "chipclk1rstiso112";
+	};
+
+	clkmodrst0: clkmodrst0 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk16>;
+		clock-output-names = "modrst0";
+		reg = <0x02350000 0xb00>, <0x02350000 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <0>;
+	};
+
+
+	clkusb: clkusb {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk16>;
+		clock-output-names = "usb";
+		reg = <0x02350008 0xb00>, <0x02350000 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <0>;
+	};
+
+	clkaemifspi: clkaemifspi {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk16>;
+		clock-output-names = "aemif-spi";
+		reg = <0x0235000c 0xb00>, <0x02350000 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <0>;
+	};
+
+
+	clkdebugsstrc: clkdebugsstrc {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "debugss-trc";
+		reg = <0x02350014 0xb00>, <0x02350000 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <0>;
+	};
+
+	clktetbtrc: clktetbtrc {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "tetb-trc";
+		reg = <0x02350018 0xb00>, <0x02350004 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <1>;
+	};
+
+	clkpa: clkpa {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk16>;
+		clock-output-names = "pa";
+		reg = <0x0235001c 0xb00>, <0x02350008 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <2>;
+	};
+
+	clkcpgmac: clkcpgmac {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&clkpa>;
+		clock-output-names = "cpgmac";
+		reg = <0x02350020 0xb00>, <0x02350008 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <2>;
+	};
+
+	clksa: clksa {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&clkpa>;
+		clock-output-names = "sa";
+		reg = <0x02350024 0xb00>, <0x02350008 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <2>;
+	};
+
+	clkpcie: clkpcie {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk12>;
+		clock-output-names = "pcie";
+		reg = <0x02350028 0xb00>, <0x0235000c 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <3>;
+	};
+
+	clksrio: clksrio {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk1rstiso13>;
+		clock-output-names = "srio";
+		reg = <0x0235002c 0xb00>, <0x02350010 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <4>;
+	};
+
+	clkhyperlink0: clkhyperlink0 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk12>;
+		clock-output-names = "hyperlink-0";
+		reg = <0x02350030 0xb00>, <0x02350014 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <5>;
+	};
+
+	clksr: clksr {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk1rstiso112>;
+		clock-output-names = "sr";
+		reg = <0x02350034 0xb00>, <0x02350018 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <6>;
+	};
+
+	clkmsmcsram: clkmsmcsram {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk1>;
+		clock-output-names = "msmcsram";
+		reg = <0x02350038 0xb00>, <0x0235001c 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <7>;
+	};
+
+	clkgem0: clkgem0 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk1>;
+		clock-output-names = "gem0";
+		reg = <0x0235003c 0xb00>, <0x02350020 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <8>;
+	};
+
+	clkgem1: clkgem1 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk1>;
+		clock-output-names = "gem1";
+		reg = <0x02350040 0xb00>, <0x02350024 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <9>;
+	};
+
+	clkgem2: clkgem2 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk1>;
+		clock-output-names = "gem2";
+		reg = <0x02350044 0xb00>, <0x02350028 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <10>;
+	};
+
+	clkgem3: clkgem3 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk1>;
+		clock-output-names = "gem3";
+		reg = <0x02350048 0xb00>, <0x0235002c 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <11>;
+	};
+
+	clkgem4: clkgem4 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk1>;
+		clock-output-names = "gem4";
+		reg = <0x0235004c 0xb00>, <0x02350030 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <12>;
+	};
+
+	clkgem5: clkgem5 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk1>;
+		clock-output-names = "gem5";
+		reg = <0x02350050 0xb00>, <0x02350034 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <13>;
+	};
+
+	clkgem6: clkgem6 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk1>;
+		clock-output-names = "gem6";
+		reg = <0x02350054 0xb00>, <0x02350038 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <14>;
+	};
+
+	clkgem7: clkgem7 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk1>;
+		clock-output-names = "gem7";
+		reg = <0x02350058 0xb00>, <0x0235003c 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <15>;
+	};
+
+	clkddr30: clkddr30 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk12>;
+		clock-output-names = "ddr3-0";
+		reg = <0x0235005c 0xb00>, <0x02350040 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <16>;
+	};
+
+	clkddr31: clkddr31 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "ddr3-1";
+		reg = <0x02350060 0xb00>, <0x02350040 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <16>;
+	};
+
+	clktac: clktac {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "tac";
+		reg = <0x02350064 0xb00>, <0x02350044 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <17>;
+	};
+
+	clkrac01: clktac01 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "rac-01";
+		reg = <0x02350068 0xb00>, <0x02350044 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <17>;
+	};
+
+	clkrac23: clktac23 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "rac-23";
+		reg = <0x0235006c 0xb00>, <0x02350048 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <18>;
+	};
+
+	clkfftc0: clkfftc0 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "fftc-0";
+		reg = <0x02350070 0xb00>, <0x0235004c 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <19>;
+	};
+
+	clkfftc1: clkfftc1 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "fftc-1";
+		reg = <0x02350074 0xb00>, <0x023504c0 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <19>;
+	};
+
+	clkfftc2: clkfftc2 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "fftc-2";
+		reg = <0x02350078 0xb00>, <0x02350050 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <20>;
+	};
+
+	clkfftc3: clkfftc3 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "fftc-3";
+		reg = <0x0235007c 0xb00>, <0x02350050 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <20>;
+	};
+
+	clkfftc4: clkfftc4 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "fftc-4";
+		reg = <0x02350080 0xb00>, <0x02350050 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <20>;
+	};
+
+	clkfftc5: clkfftc5 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "fftc-5";
+		reg = <0x02350084 0xb00>, <0x02350050 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <20>;
+	};
+
+	clkaif: clkaif {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "aif";
+		reg = <0x02350088 0xb00>, <0x02350054 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <21>;
+	};
+
+	clktcp3d0: clktcp3d0 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "tcp3d-0";
+		reg = <0x0235008c 0xb00>, <0x02350058 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <22>;
+	};
+
+	clktcp3d1: clktcp3d1 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "tcp3d-1";
+		reg = <0x02350090 0xb00>, <0x02350058 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <22>;
+	};
+
+	clktcp3d2: clktcp3d2 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "tcp3d-2";
+		reg = <0x02350094 0xb00>, <0x0235005c 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <23>;
+	};
+
+	clktcp3d3: clktcp3d3 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "tcp3d-3";
+		reg = <0x02350098 0xb00>, <0x0235005c 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <23>;
+	};
+
+	clkvcp0: clkvcp0 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "vcp-0";
+		reg = <0x0235009c 0xb00>, <0x02350060 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <24>;
+	};
+
+	clkvcp1: clkvcp1 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "vcp-1";
+		reg = <0x023500a0 0xb00>, <0x02350060 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <24>;
+	};
+
+	clkvcp2: clkvcp2 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "vcp-2";
+		reg = <0x023500a4 0xb00>, <0x02350060 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <24>;
+	};
+
+	clkvcp3: clkvcp3 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "vcp-3";
+		reg = <0x0235000a8 0xb00>, <0x02350060 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <24>;
+	};
+
+	clkvcp4: clkvcp4 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "vcp-4";
+		reg = <0x023500ac 0xb00>, <0x02350064 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <25>;
+	};
+
+	clkvcp5: clkvcp5 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "vcp-5";
+		reg = <0x023500b0 0xb00>, <0x02350064 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <25>;
+	};
+
+	clkvcp6: clkvcp6 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "vcp-6";
+		reg = <0x023500b4 0xb00>, <0x02350064 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <25>;
+	};
+
+	clkvcp7: clkvcp7 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "vcp-7";
+		reg = <0x023500b8 0xb00>, <0x02350064 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <25>;
+	};
+
+	clkbcp: clkbcp {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "bcp";
+		reg = <0x023500bc 0xb00>, <0x02350068 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <26>;
+	};
+
+	clkdxb: clkdxb {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "dxb";
+		reg = <0x023500c0 0xb00>, <0x0235006c 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <27>;
+	};
+
+	clkhyperlink1: clkhyperlink1 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk12>;
+		clock-output-names = "hyperlink-1";
+		reg = <0x023500c4 0xb00>, <0x02350070 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <28>;
+	};
+
+	clkxge: clkxge {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&chipclk13>;
+		clock-output-names = "xge";
+		reg = <0x023500c8 0xb00>, <0x02350074 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <29>;
+	};
+
+	clkwdtimer0: clkwdtimer0 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&clkmodrst0>;
+		clock-output-names = "timer0";
+		reg = <0x02350000 0xb00>, <0x02350000 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <0>;
+	};
+
+	clkwdtimer1: clkwdtimer1 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&clkmodrst0>;
+		clock-output-names = "timer1";
+		reg = <0x02350000 0xb00>, <0x02350000 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <0>;
+	};
+
+	clkwdtimer2: clkwdtimer2 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&clkmodrst0>;
+		clock-output-names = "timer2";
+		reg = <0x02350000 0xb00>, <0x02350000 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <0>;
+	};
+
+	clkwdtimer3: clkwdtimer3 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&clkmodrst0>;
+		clock-output-names = "timer3";
+		reg = <0x02350000 0xb00>, <0x02350000 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <0>;
+	};
+
+	clkuart0: clkuart0 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&clkmodrst0>;
+		clock-output-names = "uart0";
+		reg = <0x02350000 0xb00>, <0x02350000 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <0>;
+	};
+
+	clkuart1: clkuart1 {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&clkmodrst0>;
+		clock-output-names = "uart1";
+		reg = <0x02350000 0xb00>, <0x02350000 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <0>;
+	};
+
+	clkaemif: clkaemif {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&clkaemifspi>;
+		clock-output-names = "aemif";
+		reg = <0x02350000 0xb00>, <0x02350000 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <0>;
+	};
+
+	clkusim: clkusim {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&clkmodrst0>;
+		clock-output-names = "usim";
+		reg = <0x02350000 0xb00>, <0x02350000 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <0>;
+	};
+
+	clki2c: clki2c {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&clkmodrst0>;
+		clock-output-names = "i2c";
+		reg = <0x02350000 0xb00>, <0x02350000 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <0>;
+	};
+
+	clkspi: clkspi {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&clkaemifspi>;
+		clock-output-names = "spi";
+		reg = <0x02350000 0xb00>, <0x02350000 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <0>;
+	};
+
+	clkgpio: clkgpio {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&clkmodrst0>;
+		clock-output-names = "gpio";
+		reg = <0x02350000 0xb00>, <0x02350000 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <0>;
+	};
+
+	clkkeymgr: clkkeymgr {
+		#clock-cells = <0>;
+		compatible = "ti,keystone,psc-clock";
+		clocks = <&clkmodrst0>;
+		clock-output-names = "keymgr";
+		reg = <0x02350000 0xb00>, <0x02350000 0x400>;
+		reg-names = "control", "domain";
+		domain-id = <0>;
+	};
+};
diff --git a/arch/arm/boot/dts/keystone.dts b/arch/arm/boot/dts/keystone.dts
index a68e34bbecb2..c5fa0ead2be7 100644
--- a/arch/arm/boot/dts/keystone.dts
+++ b/arch/arm/boot/dts/keystone.dts
@@ -100,6 +100,8 @@
 			reg = <0x023100e8 4>;	/* pll reset control reg */
 		};
 
+		/include/ "keystone-clocks.dtsi"
+
 		uart0: serial@02530c00 {
 			compatible = "ns16550a";
 			current-speed = <115200>;
-- 
cgit 


From f023bd1062038558f648570bdafbe3318089105a Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Fri, 19 Jul 2013 19:11:39 -0400
Subject: ARM: dts: keystone: Add clock phandle to UART nodes

Now since the clock tree is added, update UART dt nodes with clock data
and remove the hard coded clock frequency.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
 arch/arm/boot/dts/keystone.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/keystone.dts b/arch/arm/boot/dts/keystone.dts
index c5fa0ead2be7..6c5f92a470e3 100644
--- a/arch/arm/boot/dts/keystone.dts
+++ b/arch/arm/boot/dts/keystone.dts
@@ -108,7 +108,7 @@
 			reg-shift = <2>;
 			reg-io-width = <4>;
 			reg = <0x02530c00 0x100>;
-			clock-frequency = <133120000>;
+			clocks	= <&clkuart0>;
 			interrupts = <GIC_SPI 277 IRQ_TYPE_EDGE_RISING>;
 		};
 
@@ -118,7 +118,7 @@
 			reg-shift = <2>;
 			reg-io-width = <4>;
 			reg = <0x02531000 0x100>;
-			clock-frequency = <133120000>;
+			clocks	= <&clkuart1>;
 			interrupts = <GIC_SPI 280 IRQ_TYPE_EDGE_RISING>;
 		};
 
-- 
cgit 


From 4a19aad2b1623aee85a38e316d5868d1596f54c3 Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Sun, 14 Jul 2013 11:44:53 -0400
Subject: ARM: keystone: Enable clock drivers

Enable common clock drivers on Keystone 2 based SOCs.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
 arch/arm/mach-keystone/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-keystone/Kconfig b/arch/arm/mach-keystone/Kconfig
index 366d1a3b418d..d7c425d701df 100644
--- a/arch/arm/mach-keystone/Kconfig
+++ b/arch/arm/mach-keystone/Kconfig
@@ -9,6 +9,7 @@ config ARCH_KEYSTONE
 	select GENERIC_CLOCKEVENTS
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARM_ERRATA_798181 if SMP
+	select COMMON_CLK_KEYSTONE
 	help
 	  Support for boards based on the Texas Instruments Keystone family of
 	  SoCs.
-- 
cgit 


From ad03b1a768cab40799c07200dd6ec078d6bb49b9 Mon Sep 17 00:00:00 2001
From: Joseph Lo <josephl@nvidia.com>
Date: Tue, 8 Oct 2013 12:50:05 +0800
Subject: ARM: tegra: Add initial device tree for Tegra124

Initial support for Tegra 124 SoC. This is expected to be included in
the board DTS files.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/boot/dts/tegra124.dtsi | 132 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100644 arch/arm/boot/dts/tegra124.dtsi

diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
new file mode 100644
index 000000000000..905f14839947
--- /dev/null
+++ b/arch/arm/boot/dts/tegra124.dtsi
@@ -0,0 +1,132 @@
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+#include "skeleton.dtsi"
+
+/ {
+	compatible = "nvidia,tegra124";
+	interrupt-parent = <&gic>;
+
+	gic: interrupt-controller@50041000 {
+		compatible = "arm,cortex-a15-gic";
+		#interrupt-cells = <3>;
+		interrupt-controller;
+		reg = <0x50041000 0x1000>,
+		      <0x50042000 0x1000>,
+		      <0x50044000 0x2000>,
+		      <0x50046000 0x2000>;
+		interrupts = <GIC_PPI 9
+			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
+	};
+
+	timer@60005000 {
+		compatible = "nvidia,tegra124-timer", "nvidia,tegra20-timer";
+		reg = <0x60005000 0x400>;
+		interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 121 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>;
+	};
+
+	/*
+	 * There are two serial driver i.e. 8250 based simple serial
+	 * driver and APB DMA based serial driver for higher baudrate
+	 * and performace. To enable the 8250 based driver, the compatible
+	 * is "nvidia,tegra124-uart", "nvidia,tegra20-uart" and to enable
+	 * the APB DMA based serial driver, the comptible is
+	 * "nvidia,tegra124-hsuart", "nvidia,tegra30-hsuart".
+	 */
+	serial@70006000 {
+		compatible = "nvidia,tegra124-uart", "nvidia,tegra20-uart";
+		reg = <0x70006000 0x40>;
+		reg-shift = <2>;
+		interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
+		status = "disabled";
+	};
+
+	serial@70006040 {
+		compatible = "nvidia,tegra124-uart", "nvidia,tegra20-uart";
+		reg = <0x70006040 0x40>;
+		reg-shift = <2>;
+		interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+		status = "disabled";
+	};
+
+	serial@70006200 {
+		compatible = "nvidia,tegra124-uart", "nvidia,tegra20-uart";
+		reg = <0x70006200 0x40>;
+		reg-shift = <2>;
+		interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
+		status = "disabled";
+	};
+
+	serial@70006300 {
+		compatible = "nvidia,tegra124-uart", "nvidia,tegra20-uart";
+		reg = <0x70006300 0x40>;
+		reg-shift = <2>;
+		interrupts = <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>;
+		status = "disabled";
+	};
+
+	serial@70006400 {
+		compatible = "nvidia,tegra124-uart", "nvidia,tegra20-uart";
+		reg = <0x70006400 0x40>;
+		reg-shift = <2>;
+		interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
+		status = "disabled";
+	};
+
+	rtc@7000e000 {
+		compatible = "nvidia,tegra124-rtc", "nvidia,tegra20-rtc";
+		reg = <0x7000e000 0x100>;
+		interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
+		status = "disabled";
+	};
+
+	pmc@7000e400 {
+		compatible = "nvidia,tegra124-pmc";
+		reg = <0x7000e400 0x400>;
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a15";
+			reg = <0>;
+		};
+
+		cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a15";
+			reg = <1>;
+		};
+
+		cpu@2 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a15";
+			reg = <2>;
+		};
+
+		cpu@3 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a15";
+			reg = <3>;
+		};
+	};
+
+	timer {
+		compatible = "arm,armv7-timer";
+		interrupts = <GIC_PPI 13
+				(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 14
+				(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 11
+				(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
+			     <GIC_PPI 10
+				(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>;
+	};
+};
-- 
cgit 


From a1425d428f39e5b95663f3f8037f372e86f2676f Mon Sep 17 00:00:00 2001
From: Joseph Lo <josephl@nvidia.com>
Date: Tue, 8 Oct 2013 12:50:06 +0800
Subject: ARM: tegra: add Venice2 board support

Add support for the Tegra124 based Venice2 reference board.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/boot/dts/Makefile             |  3 ++-
 arch/arm/boot/dts/tegra124-venice2.dts | 20 ++++++++++++++++++++
 2 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/boot/dts/tegra124-venice2.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index cc0f1fb61753..817638b67070 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -246,7 +246,8 @@ dtb-$(CONFIG_ARCH_TEGRA) += tegra20-harmony.dtb \
 	tegra30-beaver.dtb \
 	tegra30-cardhu-a02.dtb \
 	tegra30-cardhu-a04.dtb \
-	tegra114-dalmore.dtb
+	tegra114-dalmore.dtb \
+	tegra124-venice2.dtb
 dtb-$(CONFIG_ARCH_VERSATILE) += versatile-ab.dtb \
 	versatile-pb.dtb
 dtb-$(CONFIG_ARCH_U300) += ste-u300.dtb
diff --git a/arch/arm/boot/dts/tegra124-venice2.dts b/arch/arm/boot/dts/tegra124-venice2.dts
new file mode 100644
index 000000000000..2bfc7abd26b2
--- /dev/null
+++ b/arch/arm/boot/dts/tegra124-venice2.dts
@@ -0,0 +1,20 @@
+/dts-v1/;
+
+#include "tegra124.dtsi"
+
+/ {
+	model = "NVIDIA Tegra124 Venice2";
+	compatible = "nvidia,venice2", "nvidia,tegra124";
+
+	memory {
+		reg = <0x80000000 0x80000000>;
+	};
+
+	serial@70006000 {
+		status = "okay";
+	};
+
+	pmc@7000e400 {
+		nvidia,invert-interrupt;
+	};
+};
-- 
cgit 


From 36b21dde6e899d2f25077b7c239d2d6bcff17d73 Mon Sep 17 00:00:00 2001
From: Brian Foster <bfoster@redhat.com>
Date: Fri, 20 Sep 2013 11:06:09 -0400
Subject: xfs: push down inactive transaction mgmt for remote symlinks

Push down the transaction management for remote symlinks from
xfs_inactive() down to xfs_inactive_symlink_rmt(). The latter is
cleaned up to avoid transaction management intended for the
calling context (i.e., trans duplication, reservation, item
attachment).

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_inode.c   | 15 ++++-----
 fs/xfs/xfs_symlink.c | 86 ++++++++++++++++++++++++----------------------------
 fs/xfs/xfs_symlink.h |  2 +-
 3 files changed, 49 insertions(+), 54 deletions(-)

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 5ac716b2df22..c26990b50941 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1724,9 +1724,14 @@ xfs_inactive(
 	if (error)
 		return VN_INACTIVE_CACHE;
 
+	if (S_ISLNK(ip->i_d.di_mode)) {
+		error = xfs_inactive_symlink(ip);
+		if (error)
+			goto out;
+	}
+
 	tp = xfs_trans_alloc(mp, XFS_TRANS_INACTIVE);
-	resp = (truncate || S_ISLNK(ip->i_d.di_mode)) ?
-		&M_RES(mp)->tr_itruncate : &M_RES(mp)->tr_ifree;
+	resp = truncate ? &M_RES(mp)->tr_itruncate : &M_RES(mp)->tr_ifree;
 
 	error = xfs_trans_reserve(tp, resp, 0, 0);
 	if (error) {
@@ -1738,11 +1743,7 @@ xfs_inactive(
 	xfs_ilock(ip, XFS_ILOCK_EXCL);
 	xfs_trans_ijoin(tp, ip, 0);
 
-	if (S_ISLNK(ip->i_d.di_mode)) {
-		error = xfs_inactive_symlink(ip, &tp);
-		if (error)
-			goto out_cancel;
-	} else if (truncate) {
+	if (truncate) {
 		ip->i_d.di_size = 0;
 		xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
 
diff --git a/fs/xfs/xfs_symlink.c b/fs/xfs/xfs_symlink.c
index f622a97a7e33..ded282b10bc2 100644
--- a/fs/xfs/xfs_symlink.c
+++ b/fs/xfs/xfs_symlink.c
@@ -424,8 +424,7 @@ xfs_symlink(
  */
 STATIC int
 xfs_inactive_symlink_rmt(
-	xfs_inode_t	*ip,
-	xfs_trans_t	**tpp)
+	struct xfs_inode *ip)
 {
 	xfs_buf_t	*bp;
 	int		committed;
@@ -437,11 +436,9 @@ xfs_inactive_symlink_rmt(
 	xfs_mount_t	*mp;
 	xfs_bmbt_irec_t	mval[XFS_SYMLINK_MAPS];
 	int		nmaps;
-	xfs_trans_t	*ntp;
 	int		size;
 	xfs_trans_t	*tp;
 
-	tp = *tpp;
 	mp = ip->i_mount;
 	ASSERT(ip->i_df.if_flags & XFS_IFEXTENTS);
 	/*
@@ -453,6 +450,16 @@ xfs_inactive_symlink_rmt(
 	 */
 	ASSERT(ip->i_d.di_nextents > 0 && ip->i_d.di_nextents <= 2);
 
+	tp = xfs_trans_alloc(mp, XFS_TRANS_INACTIVE);
+	error = xfs_trans_reserve(tp, &M_RES(mp)->tr_itruncate, 0, 0);
+	if (error) {
+		xfs_trans_cancel(tp, 0);
+		return error;
+	}
+
+	xfs_ilock(ip, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin(tp, ip, 0);
+
 	/*
 	 * Lock the inode, fix the size, and join it to the transaction.
 	 * Hold it so in the normal path, we still have it locked for
@@ -471,7 +478,7 @@ xfs_inactive_symlink_rmt(
 	error = xfs_bmapi_read(ip, 0, xfs_symlink_blocks(mp, size),
 				mval, &nmaps, 0);
 	if (error)
-		goto error0;
+		goto error_trans_cancel;
 	/*
 	 * Invalidate the block(s). No validation is done.
 	 */
@@ -481,22 +488,24 @@ xfs_inactive_symlink_rmt(
 			XFS_FSB_TO_BB(mp, mval[i].br_blockcount), 0);
 		if (!bp) {
 			error = ENOMEM;
-			goto error1;
+			goto error_bmap_cancel;
 		}
 		xfs_trans_binval(tp, bp);
 	}
 	/*
 	 * Unmap the dead block(s) to the free_list.
 	 */
-	if ((error = xfs_bunmapi(tp, ip, 0, size, XFS_BMAPI_METADATA, nmaps,
-			&first_block, &free_list, &done)))
-		goto error1;
+	error = xfs_bunmapi(tp, ip, 0, size, XFS_BMAPI_METADATA, nmaps,
+			    &first_block, &free_list, &done);
+	if (error)
+		goto error_bmap_cancel;
 	ASSERT(done);
 	/*
 	 * Commit the first transaction.  This logs the EFI and the inode.
 	 */
-	if ((error = xfs_bmap_finish(&tp, &free_list, &committed)))
-		goto error1;
+	error = xfs_bmap_finish(&tp, &free_list, &committed);
+	if (error)
+		goto error_bmap_cancel;
 	/*
 	 * The transaction must have been committed, since there were
 	 * actually extents freed by xfs_bunmapi.  See xfs_bmap_finish.
@@ -510,27 +519,14 @@ xfs_inactive_symlink_rmt(
 	 */
 	xfs_trans_ijoin(tp, ip, 0);
 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
-	/*
-	 * Get a new, empty transaction to return to our caller.
-	 */
-	ntp = xfs_trans_dup(tp);
 	/*
 	 * Commit the transaction containing extent freeing and EFDs.
-	 * If we get an error on the commit here or on the reserve below,
-	 * we need to unlock the inode since the new transaction doesn't
-	 * have the inode attached.
 	 */
-	error = xfs_trans_commit(tp, 0);
-	tp = ntp;
+	error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
 	if (error) {
 		ASSERT(XFS_FORCED_SHUTDOWN(mp));
-		goto error0;
+		goto error_unlock;
 	}
-	/*
-	 * transaction commit worked ok so we can drop the extra ticket
-	 * reference that we gained in xfs_trans_dup()
-	 */
-	xfs_log_ticket_put(tp->t_ticket);
 
 	/*
 	 * Remove the memory for extent descriptions (just bookkeeping).
@@ -538,23 +534,16 @@ xfs_inactive_symlink_rmt(
 	if (ip->i_df.if_bytes)
 		xfs_idata_realloc(ip, -ip->i_df.if_bytes, XFS_DATA_FORK);
 	ASSERT(ip->i_df.if_bytes == 0);
-	/*
-	 * Put an itruncate log reservation in the new transaction
-	 * for our caller.
-	 */
-	error = xfs_trans_reserve(tp, &M_RES(mp)->tr_itruncate, 0, 0);
-	if (error) {
-		ASSERT(XFS_FORCED_SHUTDOWN(mp));
-		goto error0;
-	}
 
-	xfs_trans_ijoin(tp, ip, 0);
-	*tpp = tp;
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
 	return 0;
 
- error1:
+error_bmap_cancel:
 	xfs_bmap_cancel(&free_list);
- error0:
+error_trans_cancel:
+	xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT);
+error_unlock:
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
 	return error;
 }
 
@@ -563,41 +552,46 @@ xfs_inactive_symlink_rmt(
  */
 int
 xfs_inactive_symlink(
-	struct xfs_inode	*ip,
-	struct xfs_trans	**tp)
+	struct xfs_inode	*ip)
 {
 	struct xfs_mount	*mp = ip->i_mount;
 	int			pathlen;
 
 	trace_xfs_inactive_symlink(ip);
 
-	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
-
 	if (XFS_FORCED_SHUTDOWN(mp))
 		return XFS_ERROR(EIO);
 
+	xfs_ilock(ip, XFS_ILOCK_EXCL);
+
 	/*
 	 * Zero length symlinks _can_ exist.
 	 */
 	pathlen = (int)ip->i_d.di_size;
-	if (!pathlen)
+	if (!pathlen) {
+		xfs_iunlock(ip, XFS_ILOCK_EXCL);
 		return 0;
+	}
 
 	if (pathlen < 0 || pathlen > MAXPATHLEN) {
 		xfs_alert(mp, "%s: inode (0x%llx) bad symlink length (%d)",
 			 __func__, (unsigned long long)ip->i_ino, pathlen);
+		xfs_iunlock(ip, XFS_ILOCK_EXCL);
 		ASSERT(0);
 		return XFS_ERROR(EFSCORRUPTED);
 	}
 
 	if (ip->i_df.if_flags & XFS_IFINLINE) {
-		if (ip->i_df.if_bytes > 0)
+		if (ip->i_df.if_bytes > 0) 
 			xfs_idata_realloc(ip, -(ip->i_df.if_bytes),
 					  XFS_DATA_FORK);
+		xfs_iunlock(ip, XFS_ILOCK_EXCL);
 		ASSERT(ip->i_df.if_bytes == 0);
 		return 0;
 	}
 
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+
 	/* remove the remote symlink */
-	return xfs_inactive_symlink_rmt(ip, tp);
+	return xfs_inactive_symlink_rmt(ip);
 }
diff --git a/fs/xfs/xfs_symlink.h b/fs/xfs/xfs_symlink.h
index 99338ba666ac..e75245d09116 100644
--- a/fs/xfs/xfs_symlink.h
+++ b/fs/xfs/xfs_symlink.h
@@ -22,6 +22,6 @@
 int xfs_symlink(struct xfs_inode *dp, struct xfs_name *link_name,
 		const char *target_path, umode_t mode, struct xfs_inode **ipp);
 int xfs_readlink(struct xfs_inode *ip, char *link);
-int xfs_inactive_symlink(struct xfs_inode *ip, struct xfs_trans **tpp);
+int xfs_inactive_symlink(struct xfs_inode *ip);
 
 #endif /* __XFS_SYMLINK_H */
-- 
cgit 


From c66080ad0a9295eaf0246a46949619f92c75faaa Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Tue, 8 Oct 2013 15:33:53 -0400
Subject: svcrpc: fix gss-proxy NULL dereference in some error cases

We depend on the xdr decoder to set this pointer, but if we error out
before we decode this piece it could be left NULL.

I think this is probably tough to hit without a buggy gss-proxy.

Reported-by: Andi Kleen <andi@firstfloor.org>
Cc: Simo Sorce <simo@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 net/sunrpc/auth_gss/gss_rpc_upcall.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/sunrpc/auth_gss/gss_rpc_upcall.c b/net/sunrpc/auth_gss/gss_rpc_upcall.c
index f1eb0d16666c..458f85e9b0ba 100644
--- a/net/sunrpc/auth_gss/gss_rpc_upcall.c
+++ b/net/sunrpc/auth_gss/gss_rpc_upcall.c
@@ -298,7 +298,8 @@ int gssp_accept_sec_context_upcall(struct net *net,
 	if (res.context_handle) {
 		data->out_handle = rctxh.exported_context_token;
 		data->mech_oid.len = rctxh.mech.len;
-		memcpy(data->mech_oid.data, rctxh.mech.data,
+		if (rctxh.mech.data)
+			memcpy(data->mech_oid.data, rctxh.mech.data,
 						data->mech_oid.len);
 		client_name = rctxh.src_name.display_name;
 	}
-- 
cgit 


From 3be34555fa294483202483c4b171a8d335447187 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Tue, 8 Oct 2013 15:53:07 -0400
Subject: svcrpc: fix error-handling on badd gssproxy downcall

For every other problem here we bail out with an error, but here for
some reason we're setting a negative cache entry (with, note, an
undefined expiry).

It seems simplest just to bail out in the same way as we do in other
cases.

Cc: Simo Sorce <simo@redhat.com>
Reported-by: Andi Kleen <andi@firstfloor.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 net/sunrpc/auth_gss/svcauth_gss.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/sunrpc/auth_gss/svcauth_gss.c b/net/sunrpc/auth_gss/svcauth_gss.c
index 09fb638bcaa4..008cdade5aae 100644
--- a/net/sunrpc/auth_gss/svcauth_gss.c
+++ b/net/sunrpc/auth_gss/svcauth_gss.c
@@ -1167,8 +1167,8 @@ static int gss_proxy_save_rsc(struct cache_detail *cd,
 	if (!ud->found_creds) {
 		/* userspace seem buggy, we should always get at least a
 		 * mapping to nobody */
-		dprintk("RPC:       No creds found, marking Negative!\n");
-		set_bit(CACHE_NEGATIVE, &rsci.h.flags);
+		dprintk("RPC:       No creds found!\n");
+		goto out;
 	} else {
 
 		/* steal creds */
-- 
cgit 


From 83c6ca532152806122b8b074a9128299a5cf57c9 Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Tue, 3 Sep 2013 14:08:27 -0600
Subject: ARM: tegra: defconfig updates

ARCH_TEGRA_124_SOC: Tegra124 SoC support.
CPU_FREQ_STAT_DETAILS: Enables various sysfs files that are useful when
    testing cpufreq.
CONFIG_COMMON_CLK_DEBUG: Useful to look at the clock tree to verify that
    clocks for the various devices have been properly set up.
PINCTRL_PALMAS: Used on Dalmore board.
NEON: Enables SIMD instruction support for Tegra30 and later SoCs.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/configs/tegra_defconfig | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/configs/tegra_defconfig b/arch/arm/configs/tegra_defconfig
index ea042e80e54d..4934295bb4f0 100644
--- a/arch/arm/configs/tegra_defconfig
+++ b/arch/arm/configs/tegra_defconfig
@@ -27,6 +27,7 @@ CONFIG_ARCH_TEGRA=y
 CONFIG_ARCH_TEGRA_2x_SOC=y
 CONFIG_ARCH_TEGRA_3x_SOC=y
 CONFIG_ARCH_TEGRA_114_SOC=y
+CONFIG_ARCH_TEGRA_124_SOC=y
 CONFIG_TEGRA_EMC_SCALING_ENABLE=y
 CONFIG_PCI=y
 CONFIG_PCI_MSI=y
@@ -41,9 +42,11 @@ CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
 CONFIG_KEXEC=y
 CONFIG_CPU_FREQ=y
+CONFIG_CPU_FREQ_STAT_DETAILS=y
 CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
 CONFIG_CPU_IDLE=y
 CONFIG_VFP=y
+CONFIG_NEON=y
 CONFIG_PM_RUNTIME=y
 CONFIG_NET=y
 CONFIG_PACKET=y
@@ -129,6 +132,7 @@ CONFIG_SPI=y
 CONFIG_SPI_TEGRA114=y
 CONFIG_SPI_TEGRA20_SFLASH=y
 CONFIG_SPI_TEGRA20_SLINK=y
+CONFIG_PINCTRL_PALMAS=y
 CONFIG_GPIO_PCA953X_IRQ=y
 CONFIG_GPIO_PALMAS=y
 CONFIG_GPIO_TPS6586X=y
@@ -223,6 +227,7 @@ CONFIG_KEYBOARD_NVEC=y
 CONFIG_SERIO_NVEC_PS2=y
 CONFIG_NVEC_POWER=y
 CONFIG_NVEC_PAZ00=y
+CONFIG_COMMON_CLK_DEBUG=y
 CONFIG_TEGRA_IOMMU_GART=y
 CONFIG_TEGRA_IOMMU_SMMU=y
 CONFIG_MEMORY=y
-- 
cgit 


From 4996b9098d5522f9d3233af6a7efd1fac5d43f00 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Mon, 7 Oct 2013 09:17:20 +0200
Subject: bonding: ensure that TLB mode's active slave has correct mac filter

Currently, in TLB mode we change mac addresses only by memcpy-ing the to
net_device->dev_addr, without actually setting them via
dev_set_mac_address(). This permits us to receive all the traffic always on
one mac address.

However, in case the interface flips, some drivers might enforce the
mac filtering for its FW/HW based on current ->dev_addr, and thus we won't
be able to receive traffic on that interface, in case it will be selected
as active in TLB mode.

Fix it by setting the mac address forcefully on every new active slave that
we select in TLB mode.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: Yuval Mintz <yuvalmin@broadcom.com>
Reported-by: Yuval Mintz <yuvalmin@broadcom.com>
Tested-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_alb.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index e96041816b5b..576cceae026a 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -1699,6 +1699,23 @@ void bond_alb_handle_active_change(struct bonding *bond, struct slave *new_slave
 
 	ASSERT_RTNL();
 
+	/* in TLB mode, the slave might flip down/up with the old dev_addr,
+	 * and thus filter bond->dev_addr's packets, so force bond's mac
+	 */
+	if (bond->params.mode == BOND_MODE_TLB) {
+		struct sockaddr sa;
+		u8 tmp_addr[ETH_ALEN];
+
+		memcpy(tmp_addr, new_slave->dev->dev_addr, ETH_ALEN);
+
+		memcpy(sa.sa_data, bond->dev->dev_addr, bond->dev->addr_len);
+		sa.sa_family = bond->dev->type;
+		/* we don't care if it can't change its mac, best effort */
+		dev_set_mac_address(new_slave->dev, &sa);
+
+		memcpy(new_slave->dev->dev_addr, tmp_addr, ETH_ALEN);
+	}
+
 	/* curr_active_slave must be set before calling alb_swap_mac_addr */
 	if (swap_slave) {
 		/* swap mac address */
-- 
cgit 


From 2c8c8e6f9d534a77f97df4d7148561cb902c0f83 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Mon, 7 Oct 2013 08:32:32 -0700
Subject: net_sched: increment drop counters in qdisc_tree_decrease_qlen()

qdisc_tree_decrease_qlen() is called when some packets are dropped
on a qdisc, and we want to notify parents of qlen changes.

We also can increment parents qdisc qstats drop counters.

This permits more accurate drop counters up to root qdisc.

For example a graft operation typically resets a qdisc
(drops all packets) and call qdisc_tree_decrease_qlen()

Note that callers are responsible for their drop counters.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sched/sch_api.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/sched/sch_api.c b/net/sched/sch_api.c
index 2adda7fa2d39..cd81505662b8 100644
--- a/net/sched/sch_api.c
+++ b/net/sched/sch_api.c
@@ -737,9 +737,11 @@ void qdisc_tree_decrease_qlen(struct Qdisc *sch, unsigned int n)
 	const struct Qdisc_class_ops *cops;
 	unsigned long cl;
 	u32 parentid;
+	int drops;
 
 	if (n == 0)
 		return;
+	drops = max_t(int, n, 0);
 	while ((parentid = sch->parent)) {
 		if (TC_H_MAJ(parentid) == TC_H_MAJ(TC_H_INGRESS))
 			return;
@@ -756,6 +758,7 @@ void qdisc_tree_decrease_qlen(struct Qdisc *sch, unsigned int n)
 			cops->put(sch, cl);
 		}
 		sch->q.qlen -= n;
+		sch->qstats.drops += drops;
 	}
 }
 EXPORT_SYMBOL(qdisc_tree_decrease_qlen);
-- 
cgit 


From 005ec9743394010cd37d86c3fd2e81978231cdbf Mon Sep 17 00:00:00 2001
From: Shawn Bohrer <sbohrer@rgmadvisors.com>
Date: Mon, 7 Oct 2013 11:01:38 -0500
Subject: udp: Only allow busy read/poll on connected sockets

UDP sockets can receive packets from multiple endpoints and thus may be
received on multiple receive queues.  Since packets packets can arrive
on multiple receive queues we should not mark the napi_id for all
packets.  This makes busy read/poll only work for connected UDP sockets.

This additionally enables busy read/poll for UDP multicast packets as
long as the socket is connected by moving the check into
__udp_queue_rcv_skb().

Signed-off-by: Shawn Bohrer <sbohrer@rgmadvisors.com>
Suggested-by: Eric Dumazet <edumazet@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/udp.c | 5 +++--
 net/ipv6/udp.c | 5 +++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index c41833e9c083..5950e12bd3ab 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1405,8 +1405,10 @@ static int __udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 {
 	int rc;
 
-	if (inet_sk(sk)->inet_daddr)
+	if (inet_sk(sk)->inet_daddr) {
 		sock_rps_save_rxhash(sk, skb);
+		sk_mark_napi_id(sk, skb);
+	}
 
 	rc = sock_queue_rcv_skb(sk, skb);
 	if (rc < 0) {
@@ -1716,7 +1718,6 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
 	if (sk != NULL) {
 		int ret;
 
-		sk_mark_napi_id(sk, skb);
 		ret = udp_queue_rcv_skb(sk, skb);
 		sock_put(sk);
 
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 8119791e8a95..37532478e3ba 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -549,8 +549,10 @@ static int __udpv6_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 {
 	int rc;
 
-	if (!ipv6_addr_any(&inet6_sk(sk)->daddr))
+	if (!ipv6_addr_any(&inet6_sk(sk)->daddr)) {
 		sock_rps_save_rxhash(sk, skb);
+		sk_mark_napi_id(sk, skb);
+	}
 
 	rc = sock_queue_rcv_skb(sk, skb);
 	if (rc < 0) {
@@ -844,7 +846,6 @@ int __udp6_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
 	if (sk != NULL) {
 		int ret;
 
-		sk_mark_napi_id(sk, skb);
 		ret = udpv6_queue_rcv_skb(sk, skb);
 		sock_put(sk);
 
-- 
cgit 


From 421b3885bf6d56391297844f43fb7154a6396e12 Mon Sep 17 00:00:00 2001
From: Shawn Bohrer <sbohrer@rgmadvisors.com>
Date: Mon, 7 Oct 2013 11:01:39 -0500
Subject: udp: ipv4: Add udp early demux

The removal of the routing cache introduced a performance regression for
some UDP workloads since a dst lookup must be done for each packet.
This change caches the dst per socket in a similar manner to what we do
for TCP by implementing early_demux.

For UDP multicast we can only cache the dst if there is only one
receiving socket on the host.  Since caching only works when there is
one receiving socket we do the multicast socket lookup using RCU.

For UDP unicast we only demux sockets with an exact match in order to
not break forwarding setups.  Additionally since the hash chains may be
long we only check the first socket to see if it is a match and not
waste extra time searching the whole chain when we might not find an
exact match.

Benchmark results from a netperf UDP_RR test:
Before 87961.22 transactions/s
After  89789.68 transactions/s

Benchmark results from a fio 1 byte UDP multicast pingpong test
(Multicast one way unicast response):
Before 12.97us RTT
After  12.63us RTT

Signed-off-by: Shawn Bohrer <sbohrer@rgmadvisors.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/sock.h |   2 +-
 include/net/udp.h  |   1 +
 net/ipv4/af_inet.c |   1 +
 net/ipv4/udp.c     | 202 ++++++++++++++++++++++++++++++++++++++++++++++++-----
 4 files changed, 187 insertions(+), 19 deletions(-)

diff --git a/include/net/sock.h b/include/net/sock.h
index e3bf213be625..79532540201b 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -218,7 +218,7 @@ struct cg_proto;
   *	@sk_lock:	synchronizer
   *	@sk_rcvbuf: size of receive buffer in bytes
   *	@sk_wq: sock wait queue and async head
-  *	@sk_rx_dst: receive input route used by early tcp demux
+  *	@sk_rx_dst: receive input route used by early demux
   *	@sk_dst_cache: destination cache
   *	@sk_dst_lock: destination cache lock
   *	@sk_policy: flow policy
diff --git a/include/net/udp.h b/include/net/udp.h
index 510b8cb4d1a7..fe4ba9f32429 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -175,6 +175,7 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum,
 		     unsigned int hash2_nulladdr);
 
 /* net/ipv4/udp.c */
+void udp_v4_early_demux(struct sk_buff *skb);
 int udp_get_port(struct sock *sk, unsigned short snum,
 		 int (*saddr_cmp)(const struct sock *,
 				  const struct sock *));
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index cfeb85cff4f0..35913fb77dc8 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1546,6 +1546,7 @@ static const struct net_protocol tcp_protocol = {
 };
 
 static const struct net_protocol udp_protocol = {
+	.early_demux =	udp_v4_early_demux,
 	.handler =	udp_rcv,
 	.err_handler =	udp_err,
 	.no_policy =	1,
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 5950e12bd3ab..262ea3929da6 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -103,6 +103,7 @@
 #include <linux/seq_file.h>
 #include <net/net_namespace.h>
 #include <net/icmp.h>
+#include <net/inet_hashtables.h>
 #include <net/route.h>
 #include <net/checksum.h>
 #include <net/xfrm.h>
@@ -565,6 +566,26 @@ struct sock *udp4_lib_lookup(struct net *net, __be32 saddr, __be16 sport,
 }
 EXPORT_SYMBOL_GPL(udp4_lib_lookup);
 
+static inline bool __udp_is_mcast_sock(struct net *net, struct sock *sk,
+				       __be16 loc_port, __be32 loc_addr,
+				       __be16 rmt_port, __be32 rmt_addr,
+				       int dif, unsigned short hnum)
+{
+	struct inet_sock *inet = inet_sk(sk);
+
+	if (!net_eq(sock_net(sk), net) ||
+	    udp_sk(sk)->udp_port_hash != hnum ||
+	    (inet->inet_daddr && inet->inet_daddr != rmt_addr) ||
+	    (inet->inet_dport != rmt_port && inet->inet_dport) ||
+	    (inet->inet_rcv_saddr && inet->inet_rcv_saddr != loc_addr) ||
+	    ipv6_only_sock(sk) ||
+	    (sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif))
+		return false;
+	if (!ip_mc_sf_allow(sk, loc_addr, rmt_addr, dif))
+		return false;
+	return true;
+}
+
 static inline struct sock *udp_v4_mcast_next(struct net *net, struct sock *sk,
 					     __be16 loc_port, __be32 loc_addr,
 					     __be16 rmt_port, __be32 rmt_addr,
@@ -575,20 +596,11 @@ static inline struct sock *udp_v4_mcast_next(struct net *net, struct sock *sk,
 	unsigned short hnum = ntohs(loc_port);
 
 	sk_nulls_for_each_from(s, node) {
-		struct inet_sock *inet = inet_sk(s);
-
-		if (!net_eq(sock_net(s), net) ||
-		    udp_sk(s)->udp_port_hash != hnum ||
-		    (inet->inet_daddr && inet->inet_daddr != rmt_addr) ||
-		    (inet->inet_dport != rmt_port && inet->inet_dport) ||
-		    (inet->inet_rcv_saddr &&
-		     inet->inet_rcv_saddr != loc_addr) ||
-		    ipv6_only_sock(s) ||
-		    (s->sk_bound_dev_if && s->sk_bound_dev_if != dif))
-			continue;
-		if (!ip_mc_sf_allow(s, loc_addr, rmt_addr, dif))
-			continue;
-		goto found;
+		if (__udp_is_mcast_sock(net, s,
+					loc_port, loc_addr,
+					rmt_port, rmt_addr,
+					dif, hnum))
+			goto found;
 	}
 	s = NULL;
 found:
@@ -1581,6 +1593,14 @@ static void flush_stack(struct sock **stack, unsigned int count,
 		kfree_skb(skb1);
 }
 
+static void udp_sk_rx_dst_set(struct sock *sk, const struct sk_buff *skb)
+{
+	struct dst_entry *dst = skb_dst(skb);
+
+	dst_hold(dst);
+	sk->sk_rx_dst = dst;
+}
+
 /*
  *	Multicasts and broadcasts go to each listener.
  *
@@ -1709,11 +1729,28 @@ int __udp4_lib_rcv(struct sk_buff *skb, struct udp_table *udptable,
 	if (udp4_csum_init(skb, uh, proto))
 		goto csum_error;
 
-	if (rt->rt_flags & (RTCF_BROADCAST|RTCF_MULTICAST))
-		return __udp4_lib_mcast_deliver(net, skb, uh,
-				saddr, daddr, udptable);
+	if (skb->sk) {
+		int ret;
+		sk = skb->sk;
 
-	sk = __udp4_lib_lookup_skb(skb, uh->source, uh->dest, udptable);
+		if (unlikely(sk->sk_rx_dst == NULL))
+			udp_sk_rx_dst_set(sk, skb);
+
+		ret = udp_queue_rcv_skb(sk, skb);
+
+		/* a return value > 0 means to resubmit the input, but
+		 * it wants the return to be -protocol, or 0
+		 */
+		if (ret > 0)
+			return -ret;
+		return 0;
+	} else {
+		if (rt->rt_flags & (RTCF_BROADCAST|RTCF_MULTICAST))
+			return __udp4_lib_mcast_deliver(net, skb, uh,
+					saddr, daddr, udptable);
+
+		sk = __udp4_lib_lookup_skb(skb, uh->source, uh->dest, udptable);
+	}
 
 	if (sk != NULL) {
 		int ret;
@@ -1771,6 +1808,135 @@ drop:
 	return 0;
 }
 
+/* We can only early demux multicast if there is a single matching socket.
+ * If more than one socket found returns NULL
+ */
+static struct sock *__udp4_lib_mcast_demux_lookup(struct net *net,
+						  __be16 loc_port, __be32 loc_addr,
+						  __be16 rmt_port, __be32 rmt_addr,
+						  int dif)
+{
+	struct sock *sk, *result;
+	struct hlist_nulls_node *node;
+	unsigned short hnum = ntohs(loc_port);
+	unsigned int count, slot = udp_hashfn(net, hnum, udp_table.mask);
+	struct udp_hslot *hslot = &udp_table.hash[slot];
+
+	rcu_read_lock();
+begin:
+	count = 0;
+	result = NULL;
+	sk_nulls_for_each_rcu(sk, node, &hslot->head) {
+		if (__udp_is_mcast_sock(net, sk,
+					loc_port, loc_addr,
+					rmt_port, rmt_addr,
+					dif, hnum)) {
+			result = sk;
+			++count;
+		}
+	}
+	/*
+	 * if the nulls value we got at the end of this lookup is
+	 * not the expected one, we must restart lookup.
+	 * We probably met an item that was moved to another chain.
+	 */
+	if (get_nulls_value(node) != slot)
+		goto begin;
+
+	if (result) {
+		if (count != 1 ||
+		    unlikely(!atomic_inc_not_zero_hint(&result->sk_refcnt, 2)))
+			result = NULL;
+		else if (unlikely(!__udp_is_mcast_sock(net, sk,
+						       loc_port, loc_addr,
+						       rmt_port, rmt_addr,
+						       dif, hnum))) {
+			sock_put(result);
+			result = NULL;
+		}
+	}
+	rcu_read_unlock();
+	return result;
+}
+
+/* For unicast we should only early demux connected sockets or we can
+ * break forwarding setups.  The chains here can be long so only check
+ * if the first socket is an exact match and if not move on.
+ */
+static struct sock *__udp4_lib_demux_lookup(struct net *net,
+					    __be16 loc_port, __be32 loc_addr,
+					    __be16 rmt_port, __be32 rmt_addr,
+					    int dif)
+{
+	struct sock *sk, *result;
+	struct hlist_nulls_node *node;
+	unsigned short hnum = ntohs(loc_port);
+	unsigned int hash2 = udp4_portaddr_hash(net, loc_addr, hnum);
+	unsigned int slot2 = hash2 & udp_table.mask;
+	struct udp_hslot *hslot2 = &udp_table.hash2[slot2];
+	INET_ADDR_COOKIE(acookie, rmt_addr, loc_addr)
+	const __portpair ports = INET_COMBINED_PORTS(rmt_port, hnum);
+
+	rcu_read_lock();
+	result = NULL;
+	udp_portaddr_for_each_entry_rcu(sk, node, &hslot2->head) {
+		if (INET_MATCH(sk, net, acookie,
+			       rmt_addr, loc_addr, ports, dif))
+			result = sk;
+		/* Only check first socket in chain */
+		break;
+	}
+
+	if (result) {
+		if (unlikely(!atomic_inc_not_zero_hint(&result->sk_refcnt, 2)))
+			result = NULL;
+		else if (unlikely(!INET_MATCH(sk, net, acookie,
+					      rmt_addr, loc_addr,
+					      ports, dif))) {
+			sock_put(result);
+			result = NULL;
+		}
+	}
+	rcu_read_unlock();
+	return result;
+}
+
+void udp_v4_early_demux(struct sk_buff *skb)
+{
+	const struct iphdr *iph = ip_hdr(skb);
+	const struct udphdr *uh = udp_hdr(skb);
+	struct sock *sk;
+	struct dst_entry *dst;
+	struct net *net = dev_net(skb->dev);
+	int dif = skb->dev->ifindex;
+
+	/* validate the packet */
+	if (!pskb_may_pull(skb, skb_transport_offset(skb) + sizeof(struct udphdr)))
+		return;
+
+	if (skb->pkt_type == PACKET_BROADCAST ||
+	    skb->pkt_type == PACKET_MULTICAST)
+		sk = __udp4_lib_mcast_demux_lookup(net, uh->dest, iph->daddr,
+						   uh->source, iph->saddr, dif);
+	else if (skb->pkt_type == PACKET_HOST)
+		sk = __udp4_lib_demux_lookup(net, uh->dest, iph->daddr,
+					     uh->source, iph->saddr, dif);
+	else
+		return;
+
+	if (!sk)
+		return;
+
+	skb->sk = sk;
+	skb->destructor = sock_edemux;
+	dst = sk->sk_rx_dst;
+
+	if (dst)
+		dst = dst_check(dst, 0);
+	if (dst)
+		skb_dst_set_noref(skb, dst);
+}
+
 int udp_rcv(struct sk_buff *skb)
 {
 	return __udp4_lib_rcv(skb, &udp_table, IPPROTO_UDP);
-- 
cgit 


From fbf8866d65d5de84f75563eb0edd7fc27dbe9a90 Mon Sep 17 00:00:00 2001
From: Shawn Bohrer <sbohrer@rgmadvisors.com>
Date: Mon, 7 Oct 2013 11:01:40 -0500
Subject: net: ipv4 only populate IP_PKTINFO when needed

The since the removal of the routing cache computing
fib_compute_spec_dst() does a fib_table lookup for each UDP multicast
packet received.  This has introduced a performance regression for some
UDP workloads.

This change skips populating the packet info for sockets that do not have
IP_PKTINFO set.

Benchmark results from a netperf UDP_RR test:
Before 89789.68 transactions/s
After  90587.62 transactions/s

Benchmark results from a fio 1 byte UDP multicast pingpong test
(Multicast one way unicast response):
Before 12.63us RTT
After  12.48us RTT

Signed-off-by: Shawn Bohrer <sbohrer@rgmadvisors.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/ip.h       | 2 +-
 net/ipv4/ip_sockglue.c | 5 +++--
 net/ipv4/raw.c         | 2 +-
 net/ipv4/udp.c         | 2 +-
 4 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/include/net/ip.h b/include/net/ip.h
index 16078f422397..b39ebe5339ac 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -459,7 +459,7 @@ int ip_options_rcv_srr(struct sk_buff *skb);
  *	Functions provided by ip_sockglue.c
  */
 
-void ipv4_pktinfo_prepare(struct sk_buff *skb);
+void ipv4_pktinfo_prepare(const struct sock *sk, struct sk_buff *skb);
 void ip_cmsg_recv(struct msghdr *msg, struct sk_buff *skb);
 int ip_cmsg_send(struct net *net, struct msghdr *msg, struct ipcm_cookie *ipc);
 int ip_setsockopt(struct sock *sk, int level, int optname, char __user *optval,
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 56e34457ac07..0626f2cb192e 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -1052,11 +1052,12 @@ e_inval:
  * destination in skb->cb[] before dst drop.
  * This way, receiver doesnt make cache line misses to read rtable.
  */
-void ipv4_pktinfo_prepare(struct sk_buff *skb)
+void ipv4_pktinfo_prepare(const struct sock *sk, struct sk_buff *skb)
 {
 	struct in_pktinfo *pktinfo = PKTINFO_SKB_CB(skb);
 
-	if (skb_rtable(skb)) {
+	if ((inet_sk(sk)->cmsg_flags & IP_CMSG_PKTINFO) &&
+	    skb_rtable(skb)) {
 		pktinfo->ipi_ifindex = inet_iif(skb);
 		pktinfo->ipi_spec_dst.s_addr = fib_compute_spec_dst(skb);
 	} else {
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index b2fa14c1a6f1..41e1d2845c8f 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -299,7 +299,7 @@ static int raw_rcv_skb(struct sock *sk, struct sk_buff *skb)
 {
 	/* Charge it to the socket. */
 
-	ipv4_pktinfo_prepare(skb);
+	ipv4_pktinfo_prepare(sk, skb);
 	if (sock_queue_rcv_skb(sk, skb) < 0) {
 		kfree_skb(skb);
 		return NET_RX_DROP;
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 262ea3929da6..4226c53daaed 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1544,7 +1544,7 @@ int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 
 	rc = 0;
 
-	ipv4_pktinfo_prepare(skb);
+	ipv4_pktinfo_prepare(sk, skb);
 	bh_lock_sock(sk);
 	if (!sock_owned_by_user(sk))
 		rc = __udp_queue_rcv_skb(sk, skb);
-- 
cgit 


From e1af5e445ef8582e8f690fadcd63797db1e62663 Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Tue, 8 Oct 2013 11:05:19 +0800
Subject: cgroup: netprio: remove unnecessary task_netprioidx

Since the tasks have been migrated to the cgroup,
there is no need to call task_netprioidx to get
task's cgroup id.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/netprio_cgroup.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/core/netprio_cgroup.c b/net/core/netprio_cgroup.c
index d9cd627e6a16..9b7cf6c85f82 100644
--- a/net/core/netprio_cgroup.c
+++ b/net/core/netprio_cgroup.c
@@ -222,11 +222,10 @@ static void net_prio_attach(struct cgroup_subsys_state *css,
 			    struct cgroup_taskset *tset)
 {
 	struct task_struct *p;
-	void *v;
+	void *v = (void *)(unsigned long)css->cgroup->id;
 
 	cgroup_taskset_for_each(p, css, tset) {
 		task_lock(p);
-		v = (void *)(unsigned long)task_netprioidx(p);
 		iterate_fd(p->files, 0, update_netprio, v);
 		task_unlock(p);
 	}
-- 
cgit 


From ff0bfad6a2ed98c89cc91bc88ac223082eb42d4a Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Tue, 8 Oct 2013 11:05:20 +0800
Subject: cgroup: cls: remove unnecessary task_cls_classid

We can get classid through cgroup_subsys_state,
this is directviewing and effective.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sched/cls_cgroup.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/sched/cls_cgroup.c b/net/sched/cls_cgroup.c
index 867b4a3e3980..16006c92c3fd 100644
--- a/net/sched/cls_cgroup.c
+++ b/net/sched/cls_cgroup.c
@@ -72,11 +72,11 @@ static void cgrp_attach(struct cgroup_subsys_state *css,
 			struct cgroup_taskset *tset)
 {
 	struct task_struct *p;
-	void *v;
+	struct cgroup_cls_state *cs = css_cls_state(css);
+	void *v = (void *)(unsigned long)cs->classid;
 
 	cgroup_taskset_for_each(p, css, tset) {
 		task_lock(p);
-		v = (void *)(unsigned long)task_cls_classid(p);
 		iterate_fd(p->files, 0, update_classid, v);
 		task_unlock(p);
 	}
-- 
cgit 


From f7be2d7f594cbc7a00902b5427332a1ad519a528 Mon Sep 17 00:00:00 2001
From: Brian Foster <bfoster@redhat.com>
Date: Fri, 20 Sep 2013 11:06:10 -0400
Subject: xfs: push down inactive transaction mgmt for truncate

Create the new xfs_inactive_truncate() function to handle the
truncate portion of xfs_inactive(). Push the locking and
transaction management into the new function.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_inode.c | 117 +++++++++++++++++++++++++++++++----------------------
 1 file changed, 68 insertions(+), 49 deletions(-)

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index c26990b50941..7b86f643046b 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1662,6 +1662,58 @@ xfs_release(
 	return 0;
 }
 
+/*
+ * xfs_inactive_truncate
+ *
+ * Called to perform a truncate when an inode becomes unlinked.
+ */
+STATIC int
+xfs_inactive_truncate(
+	struct xfs_inode *ip)
+{
+	struct xfs_mount	*mp = ip->i_mount;
+	struct xfs_trans	*tp;
+	int			error;
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_INACTIVE);
+	error = xfs_trans_reserve(tp, &M_RES(mp)->tr_itruncate, 0, 0);
+	if (error) {
+		ASSERT(XFS_FORCED_SHUTDOWN(mp));
+		xfs_trans_cancel(tp, 0);
+		return error;
+	}
+
+	xfs_ilock(ip, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin(tp, ip, 0);
+
+	/*
+	 * Log the inode size first to prevent stale data exposure in the event
+	 * of a system crash before the truncate completes. See the related
+	 * comment in xfs_setattr_size() for details.
+	 */
+	ip->i_d.di_size = 0;
+	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+
+	error = xfs_itruncate_extents(&tp, ip, XFS_DATA_FORK, 0);
+	if (error)
+		goto error_trans_cancel;
+
+	ASSERT(ip->i_d.di_nextents == 0);
+
+	error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
+	if (error)
+		goto error_unlock;
+
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	return 0;
+
+error_trans_cancel:
+	xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT);
+error_unlock:
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	return error;
+}
+
 /*
  * xfs_inactive
  *
@@ -1679,7 +1731,6 @@ xfs_inactive(
 	int			committed;
 	struct xfs_trans	*tp;
 	struct xfs_mount	*mp;
-	struct xfs_trans_res	*resp;
 	int			error;
 	int			truncate = 0;
 
@@ -1724,35 +1775,12 @@ xfs_inactive(
 	if (error)
 		return VN_INACTIVE_CACHE;
 
-	if (S_ISLNK(ip->i_d.di_mode)) {
+	if (S_ISLNK(ip->i_d.di_mode))
 		error = xfs_inactive_symlink(ip);
-		if (error)
-			goto out;
-	}
-
-	tp = xfs_trans_alloc(mp, XFS_TRANS_INACTIVE);
-	resp = truncate ? &M_RES(mp)->tr_itruncate : &M_RES(mp)->tr_ifree;
-
-	error = xfs_trans_reserve(tp, resp, 0, 0);
-	if (error) {
-		ASSERT(XFS_FORCED_SHUTDOWN(mp));
-		xfs_trans_cancel(tp, 0);
-		return VN_INACTIVE_CACHE;
-	}
-
-	xfs_ilock(ip, XFS_ILOCK_EXCL);
-	xfs_trans_ijoin(tp, ip, 0);
-
-	if (truncate) {
-		ip->i_d.di_size = 0;
-		xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
-
-		error = xfs_itruncate_extents(&tp, ip, XFS_DATA_FORK, 0);
-		if (error)
-			goto out_cancel;
-
-		ASSERT(ip->i_d.di_nextents == 0);
-	}
+	else if (truncate)
+		error = xfs_inactive_truncate(ip);
+	if (error)
+		goto out;
 
 	/*
 	 * If there are attributes associated with the file then blow them away
@@ -1763,25 +1791,9 @@ xfs_inactive(
 	if (ip->i_d.di_anextents > 0) {
 		ASSERT(ip->i_d.di_forkoff != 0);
 
-		error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
-		if (error)
-			goto out_unlock;
-
-		xfs_iunlock(ip, XFS_ILOCK_EXCL);
-
 		error = xfs_attr_inactive(ip);
 		if (error)
 			goto out;
-
-		tp = xfs_trans_alloc(mp, XFS_TRANS_INACTIVE);
-		error = xfs_trans_reserve(tp, &M_RES(mp)->tr_ifree, 0, 0);
-		if (error) {
-			xfs_trans_cancel(tp, 0);
-			goto out;
-		}
-
-		xfs_ilock(ip, XFS_ILOCK_EXCL);
-		xfs_trans_ijoin(tp, ip, 0);
 	}
 
 	if (ip->i_afp)
@@ -1789,6 +1801,17 @@ xfs_inactive(
 
 	ASSERT(ip->i_d.di_anextents == 0);
 
+	tp = xfs_trans_alloc(mp, XFS_TRANS_INACTIVE);
+	error = xfs_trans_reserve(tp, &M_RES(mp)->tr_ifree, 0, 0);
+	if (error) {
+		ASSERT(XFS_FORCED_SHUTDOWN(mp));
+		xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES);
+		goto out;
+	}
+
+	xfs_ilock(ip, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin(tp, ip, 0);
+
 	/*
 	 * Free the inode.
 	 */
@@ -1831,13 +1854,9 @@ xfs_inactive(
 	 * Release the dquots held by inode, if any.
 	 */
 	xfs_qm_dqdetach(ip);
-out_unlock:
 	xfs_iunlock(ip, XFS_ILOCK_EXCL);
 out:
 	return VN_INACTIVE_CACHE;
-out_cancel:
-	xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT);
-	goto out_unlock;
 }
 
 /*
-- 
cgit 


From 7dfebabd4852b08ec0093d6f78aba7bc1b100318 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Mon, 16 Sep 2013 12:48:28 +0530
Subject: ARM: OMAP2+: drm: Don't build device for DMM

DMM exists on omap4+ platforms, these platforms are always expected to boot with
DT. Remove the current method of searching the dmm hwmod and building an
omap_device for dmm.

For OMAP4, the address and irq data for DMM hwmod(along with other blocks) were
removed, so the current method fails in the dmm driver's probe anyway.

The addition of DMM nodes in DT will ensure that a DMM device is built
correctly.

Cc: Andy Gross <andygro@gmail.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/drm.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/arch/arm/mach-omap2/drm.c b/arch/arm/mach-omap2/drm.c
index 59a4af779f42..e6c38cd98930 100644
--- a/arch/arm/mach-omap2/drm.c
+++ b/arch/arm/mach-omap2/drm.c
@@ -26,8 +26,6 @@
 #include <linux/platform_data/omap_drm.h>
 
 #include "soc.h"
-#include "omap_device.h"
-#include "omap_hwmod.h"
 
 #if defined(CONFIG_DRM_OMAP) || (CONFIG_DRM_OMAP_MODULE)
 
@@ -44,18 +42,6 @@ static struct platform_device omap_drm_device = {
 
 static int __init omap_init_drm(void)
 {
-	struct omap_hwmod *oh = NULL;
-	struct platform_device *pdev;
-
-	/* lookup and populate the DMM information, if present - OMAP4+ */
-	oh = omap_hwmod_lookup("dmm");
-
-	if (oh) {
-		pdev = omap_device_build(oh->name, -1, oh, NULL, 0);
-		WARN(IS_ERR(pdev), "Could not build omap_device for %s\n",
-			oh->name);
-	}
-
 	platform_data.omaprev = GET_OMAP_TYPE;
 
 	return platform_device_register(&omap_drm_device);
-- 
cgit 


From 7a59743d0ccbeade0cb130f9ceabbe51cb6d3eb7 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Mon, 16 Sep 2013 12:48:29 +0530
Subject: ARM: OMAP2+: display: Create omapdrm device inside omap_display_init

Move omapdrm device creation inside the omap_display_init so that we can
correctly create the device based on the presence of omapdss within the
platform.

For example, on a kernel image supporting multiple platforms, omap_init_drm
will create a omapdrm platform device on a AM33xx platform even though it
doesn't have a DSS block.

Originally worked on by Andy Gross.

Cc: Andy Gross <andygro@gmail.com>
Signed-off-by: Archit Taneja <archit@ti.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/Makefile  |  6 +-----
 arch/arm/mach-omap2/display.c |  7 +++++++
 arch/arm/mach-omap2/display.h |  1 +
 arch/arm/mach-omap2/drm.c     | 10 +++++-----
 4 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index afb457c3135b..e59bec01dd25 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -8,7 +8,7 @@ ccflags-$(CONFIG_ARCH_MULTIPLATFORM) := -I$(srctree)/$(src)/include \
 # Common support
 obj-y := id.o io.o control.o mux.o devices.o fb.o serial.o gpmc.o timer.o pm.o \
 	 common.o gpio.o dma.o wd_timer.o display.o i2c.o hdq1w.o omap_hwmod.o \
-	 omap_device.o sram.o
+	 omap_device.o sram.o drm.o
 
 omap-2-3-common				= irq.o
 hwmod-common				= omap_hwmod.o omap_hwmod_reset.o \
@@ -228,10 +228,6 @@ endif
 # OMAP2420 MSDI controller integration support ("MMC")
 obj-$(CONFIG_SOC_OMAP2420)		+= msdi.o
 
-ifneq ($(CONFIG_DRM_OMAP),)
-obj-y					+= drm.o
-endif
-
 # Specific board support
 obj-$(CONFIG_MACH_OMAP_GENERIC)		+= board-generic.o
 obj-$(CONFIG_MACH_OMAP_H4)		+= board-h4.o
diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index 03a0516c7f67..8d8ee4742f3f 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -416,6 +416,13 @@ int __init omap_display_init(struct omap_dss_board_info *board_data)
 		}
 	}
 
+	/* create DRM device */
+	r = omap_init_drm();
+	if (r < 0) {
+		pr_err("Unable to register omapdrm device\n");
+		return r;
+	}
+
 	return 0;
 }
 
diff --git a/arch/arm/mach-omap2/display.h b/arch/arm/mach-omap2/display.h
index b871b017b352..e4e8d39c0218 100644
--- a/arch/arm/mach-omap2/display.h
+++ b/arch/arm/mach-omap2/display.h
@@ -26,4 +26,5 @@ struct omap_dss_dispc_dev_attr {
 	bool	has_framedonetv_irq;
 };
 
+int omap_init_drm(void);
 #endif
diff --git a/arch/arm/mach-omap2/drm.c b/arch/arm/mach-omap2/drm.c
index e6c38cd98930..facd7406a03d 100644
--- a/arch/arm/mach-omap2/drm.c
+++ b/arch/arm/mach-omap2/drm.c
@@ -26,8 +26,9 @@
 #include <linux/platform_data/omap_drm.h>
 
 #include "soc.h"
+#include "display.h"
 
-#if defined(CONFIG_DRM_OMAP) || (CONFIG_DRM_OMAP_MODULE)
+#if defined(CONFIG_DRM_OMAP) || defined(CONFIG_DRM_OMAP_MODULE)
 
 static struct omap_drm_platform_data platform_data;
 
@@ -40,14 +41,13 @@ static struct platform_device omap_drm_device = {
 	.id = 0,
 };
 
-static int __init omap_init_drm(void)
+int __init omap_init_drm(void)
 {
 	platform_data.omaprev = GET_OMAP_TYPE;
 
 	return platform_device_register(&omap_drm_device);
 
 }
-
-omap_arch_initcall(omap_init_drm);
-
+#else
+int __init omap_init_drm(void) { return 0; }
 #endif
-- 
cgit 


From fc8df75217e1c60183b594a417bc496ab086a453 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Mon, 16 Sep 2013 12:48:30 +0530
Subject: ARM: OMAP2+: display: Create omapvrfb and omapfb devices inside
 omap_display_init

Move omapfb and omapvrfb device creation inside the omap_display_init so that
we can correctly create the device based on the presence of omapdss within the
platform.

For example, on a kernel image supporting multiple platforms, omap_init_vrfb and
omap_init_fb will create omapvrfb and omapfb platform devices respectively on a
AM33xx platform even though it doesn't have a VRFB or DSS block.

Signed-off-by: Archit Taneja <archit@ti.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/display.c | 14 ++++++++++++++
 arch/arm/mach-omap2/display.h |  2 ++
 arch/arm/mach-omap2/fb.c      | 14 +++++++-------
 3 files changed, 23 insertions(+), 7 deletions(-)

diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index 8d8ee4742f3f..fb66e5ae56ad 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -423,6 +423,20 @@ int __init omap_display_init(struct omap_dss_board_info *board_data)
 		return r;
 	}
 
+	/* create vrfb device */
+	r = omap_init_vrfb();
+	if (r < 0) {
+		pr_err("Unable to register omapvrfb device\n");
+		return r;
+	}
+
+	/* create FB device */
+	r = omap_init_fb();
+	if (r < 0) {
+		pr_err("Unable to register omapfb device\n");
+		return r;
+	}
+
 	return 0;
 }
 
diff --git a/arch/arm/mach-omap2/display.h b/arch/arm/mach-omap2/display.h
index e4e8d39c0218..bc7af4075914 100644
--- a/arch/arm/mach-omap2/display.h
+++ b/arch/arm/mach-omap2/display.h
@@ -27,4 +27,6 @@ struct omap_dss_dispc_dev_attr {
 };
 
 int omap_init_drm(void);
+int omap_init_vrfb(void);
+int omap_init_fb(void);
 #endif
diff --git a/arch/arm/mach-omap2/fb.c b/arch/arm/mach-omap2/fb.c
index 2ca33cc0c484..26e28e94f625 100644
--- a/arch/arm/mach-omap2/fb.c
+++ b/arch/arm/mach-omap2/fb.c
@@ -32,6 +32,7 @@
 #include <asm/mach/map.h>
 
 #include "soc.h"
+#include "display.h"
 
 #ifdef CONFIG_OMAP2_VRFB
 
@@ -64,7 +65,7 @@ static const struct resource omap3_vrfb_resources[] = {
 	DEFINE_RES_MEM_NAMED(0xfc000000u, 0x4000000, "vrfb-area-11"),
 };
 
-static int __init omap_init_vrfb(void)
+int __init omap_init_vrfb(void)
 {
 	struct platform_device *pdev;
 	const struct resource *res;
@@ -85,8 +86,8 @@ static int __init omap_init_vrfb(void)
 
 	return PTR_RET(pdev);
 }
-
-omap_arch_initcall(omap_init_vrfb);
+#else
+int __init omap_init_vrfb(void) { return 0; }
 #endif
 
 #if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
@@ -105,11 +106,10 @@ static struct platform_device omap_fb_device = {
 	.num_resources = 0,
 };
 
-static int __init omap_init_fb(void)
+int __init omap_init_fb(void)
 {
 	return platform_device_register(&omap_fb_device);
 }
-
-omap_arch_initcall(omap_init_fb);
-
+#else
+int __init omap_init_fb(void) { return 0; }
 #endif
-- 
cgit 


From 576e5bda70a5442381ee31285edada114d692132 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Mon, 16 Sep 2013 12:48:31 +0530
Subject: ARM: OMAP2+: display: Create omap_vout device inside
 omap_display_init

Move omap_vout device creation inside the omap_display_init so that we can
correctly create the device based on the presence of omapdss within the
platform.

For example, on a kernel image supporting multiple platforms, omap_init_vout
will create a omapdrm platform device on a AM33xx platform even though it
doesn't have a DSS block.

Signed-off-by: Archit Taneja <archit@ti.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/devices.c | 10 +++++-----
 arch/arm/mach-omap2/display.c |  7 +++++++
 arch/arm/mach-omap2/display.h |  1 +
 3 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index 5c5315ba129b..89a8698cd6ed 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -37,6 +37,7 @@
 #include "mux.h"
 #include "control.h"
 #include "devices.h"
+#include "display.h"
 
 #define L3_MODULES_MAX_LEN 12
 #define L3_MODULES 3
@@ -466,13 +467,13 @@ static struct platform_device omap_vout_device = {
 	.resource 	= &omap_vout_resource[0],
 	.id		= -1,
 };
-static void omap_init_vout(void)
+
+int __init omap_init_vout(void)
 {
-	if (platform_device_register(&omap_vout_device) < 0)
-		printk(KERN_ERR "Unable to register OMAP-VOUT device\n");
+	return platform_device_register(&omap_vout_device);
 }
 #else
-static inline void omap_init_vout(void) {}
+int __init omap_init_vout(void) { return 0; }
 #endif
 
 #if IS_ENABLED(CONFIG_WL12XX)
@@ -536,7 +537,6 @@ static int __init omap2_init_devices(void)
 		omap_init_wl12xx_of();
 	}
 	omap_init_sti();
-	omap_init_vout();
 
 	return 0;
 }
diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index fb66e5ae56ad..a4e536b11ec9 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -437,6 +437,13 @@ int __init omap_display_init(struct omap_dss_board_info *board_data)
 		return r;
 	}
 
+	/* create V4L2 display device */
+	r = omap_init_vout();
+	if (r < 0) {
+		pr_err("Unable to register omap_vout device\n");
+		return r;
+	}
+
 	return 0;
 }
 
diff --git a/arch/arm/mach-omap2/display.h b/arch/arm/mach-omap2/display.h
index bc7af4075914..f3d2ce4bc262 100644
--- a/arch/arm/mach-omap2/display.h
+++ b/arch/arm/mach-omap2/display.h
@@ -29,4 +29,5 @@ struct omap_dss_dispc_dev_attr {
 int omap_init_drm(void);
 int omap_init_vrfb(void);
 int omap_init_fb(void);
+int omap_init_vout(void);
 #endif
-- 
cgit 


From 38a1981ce31dc4c527cbc0137f638543261b471a Mon Sep 17 00:00:00 2001
From: Sricharan R <r.sricharan@ti.com>
Date: Wed, 18 Sep 2013 16:50:11 +0530
Subject: ARM: OMAP2+: DRA7: realtime_counter: Add ratio registers for 20MHZ
 sys-clk frequency

The real time counter also called master counter, is a free-running
counter. It produces the count used by the CPU local timer peripherals
in the MPU cluster. The timer counts at a rate of 6.144 MHz.

The ratio registers are missing for a sys-clk of 20MHZ which is used
by DRA7 socs. So because of this, the counter was getting wrongly
programmed for a sys-clk of 38.4Mhz(default). So adding the ratio
registers for 20MHZ sys-clk.

Tested-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Sricharan R <r.sricharan@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/timer.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index fa74a0625da1..d0f80c020423 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -515,6 +515,10 @@ static void __init realtime_counter_init(void)
 		num = 8;
 		den = 25;
 		break;
+	case 20000000:
+		num = 192;
+		den = 625;
+		break;
 	case 2600000:
 		num = 384;
 		den = 1625;
-- 
cgit 


From aa2f4b16f8305f0bddb5731a222b0ce39e6844aa Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Wed, 18 Sep 2013 09:05:42 -0500
Subject: ARM: OMAP5: id: Remove ES1.0 support

OMAP5 ES1.0 was intended as a test chip and has major register level
differences w.r.t ES2.0 revision of the chip. All register defines,
dts support has been solely added for ES2.0 version of the chip.
Further, all ES1.0 chips and platforms are supposed to have been
removed from circulation. Hence, there is no need to further retain
any resemblence of ES1.0 support in id detection code.

Remove the omap_revision handling and BUG() instead to prevent folks
who mistakenly try an older unsupported chip and report bogus errors.

Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/id.c  | 8 ++++----
 arch/arm/mach-omap2/soc.h | 2 --
 2 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 0289adcb6efb..4f8f1cb3f5f7 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -576,8 +576,8 @@ void __init omap5xxx_check_revision(void)
 	case 0xb942:
 		switch (rev) {
 		case 0:
-			omap_revision = OMAP5430_REV_ES1_0;
-			break;
+			/* No support for ES1.0 Test chip */
+			BUG();
 		case 1:
 		default:
 			omap_revision = OMAP5430_REV_ES2_0;
@@ -587,8 +587,8 @@ void __init omap5xxx_check_revision(void)
 	case 0xb998:
 		switch (rev) {
 		case 0:
-			omap_revision = OMAP5432_REV_ES1_0;
-			break;
+			/* No support for ES1.0 Test chip */
+			BUG();
 		case 1:
 		default:
 			omap_revision = OMAP5432_REV_ES2_0;
diff --git a/arch/arm/mach-omap2/soc.h b/arch/arm/mach-omap2/soc.h
index 4588df1447ed..076bd90a6ce0 100644
--- a/arch/arm/mach-omap2/soc.h
+++ b/arch/arm/mach-omap2/soc.h
@@ -455,9 +455,7 @@ IS_OMAP_TYPE(3430, 0x3430)
 #define OMAP4470_REV_ES1_0	(OMAP447X_CLASS | (0x10 << 8))
 
 #define OMAP54XX_CLASS		0x54000054
-#define OMAP5430_REV_ES1_0	(OMAP54XX_CLASS | (0x30 << 16) | (0x10 << 8))
 #define OMAP5430_REV_ES2_0	(OMAP54XX_CLASS | (0x30 << 16) | (0x20 << 8))
-#define OMAP5432_REV_ES1_0	(OMAP54XX_CLASS | (0x32 << 16) | (0x10 << 8))
 #define OMAP5432_REV_ES2_0	(OMAP54XX_CLASS | (0x32 << 16) | (0x20 << 8))
 
 void omap2xxx_check_revision(void);
-- 
cgit 


From 560909d433109e3da08757237f30576c71697914 Mon Sep 17 00:00:00 2001
From: Regid Ichira <regid23@nt1.in>
Date: Thu, 12 Sep 2013 03:35:48 +0300
Subject: Documentation/kbuild/kconfig.txt: 'make listnewconfig' replaces: yes
 "" | make oldconfig

Signed-off-by: Regid Ichira <regid23@nt1.in>
Acked-by: Rob Landley <rob@landley.net>
[yann.morin.1998@free.fr: fix trailing whitespace, commit subject]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
---
 Documentation/kbuild/kconfig.txt | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/Documentation/kbuild/kconfig.txt b/Documentation/kbuild/kconfig.txt
index 8ef6dbb6a462..bbc99c0c1094 100644
--- a/Documentation/kbuild/kconfig.txt
+++ b/Documentation/kbuild/kconfig.txt
@@ -20,16 +20,9 @@ symbols have been introduced.
 To see a list of new config symbols when using "make oldconfig", use
 
 	cp user/some/old.config .config
-	yes "" | make oldconfig >conf.new
+	make listnewconfig
 
-and the config program will list as (NEW) any new symbols that have
-unknown values.  Of course, the .config file is also updated with
-new (default) values, so you can use:
-
-	grep "(NEW)" conf.new
-
-to see the new config symbols or you can use diffconfig to see the
-differences between the previous and new .config files:
+and the config program will list any new symbols, one per line.
 
 	scripts/diffconfig .config.old .config | less
 
-- 
cgit 


From 31bfb10820301b26debeb26465d5bff7b1f11a37 Mon Sep 17 00:00:00 2001
From: Martin Walch <walch.martin@web.de>
Date: Thu, 3 Oct 2013 17:21:23 +0200
Subject: kconfig: add short explanation to SYMBOL_WRITE

replace the question mark in the comment after SYMBOL_WRITE with an explanation

Signed-off-by: Martin Walch <walch.martin@web.de>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
---
 scripts/kconfig/expr.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/kconfig/expr.h b/scripts/kconfig/expr.h
index df198a5f4822..ba663e1dc7e3 100644
--- a/scripts/kconfig/expr.h
+++ b/scripts/kconfig/expr.h
@@ -93,7 +93,7 @@ struct symbol {
 #define SYMBOL_CHOICEVAL  0x0020  /* used as a value in a choice block */
 #define SYMBOL_VALID      0x0080  /* set when symbol.curr is calculated */
 #define SYMBOL_OPTIONAL   0x0100  /* choice is optional - values can be 'n' */
-#define SYMBOL_WRITE      0x0200  /* ? */
+#define SYMBOL_WRITE      0x0200  /* write symbol to file (KCONFIG_CONFIG) */
 #define SYMBOL_CHANGED    0x0400  /* ? */
 #define SYMBOL_AUTO       0x1000  /* value from environment variable */
 #define SYMBOL_CHECKED    0x2000  /* used during dependency checking */
-- 
cgit 


From 8d9dfe8276750aaf30ca1b59b4c3f9349377cb6e Mon Sep 17 00:00:00 2001
From: Martin Walch <walch.martin@web.de>
Date: Thu, 3 Oct 2013 17:28:14 +0200
Subject: kconfig: fix trivial typos and update mconf documentation

This fixes lots of typos in comments and strings.

It also updates the documentation strings in mconf to reflect the changes in
the user interface from the two commits

6364fd0cb1e4c7f72b974613e0cf5744ae4d2cb2
  menuconfig: Add Save/Load buttons
1bdbac478a858d2aa73a6784c7c2e09de0f6d06b
  menuconfig: Get rid of the top-level entries for "Load an Alternate/Save an Alternate"

And it updates the layout of the example search result, i. e. moves down the
"Defined at" and "Depends on" lines and adds a symbol state ([=n]) to the
symbol in the "Selected by" line.

Furthermore, the help texts now should fit in 80 columns again when viewed
in mconf.

Signed-off-by: Martin Walch <walch.martin@web.de>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Wang YanQing <udknight@gmail.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
---
 scripts/kconfig/mconf.c  | 60 +++++++++++++++++++++++-------------------------
 scripts/kconfig/menu.c   |  2 +-
 scripts/kconfig/symbol.c |  2 +-
 3 files changed, 31 insertions(+), 33 deletions(-)

diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index 2c3963165a0d..59184bb41ef8 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -25,7 +25,7 @@
 static const char mconf_readme[] = N_(
 "Overview\n"
 "--------\n"
-"This interface let you select features and parameters for the build.\n"
+"This interface lets you select features and parameters for the build.\n"
 "Features can either be built-in, modularized, or ignored. Parameters\n"
 "must be entered in as decimal or hexadecimal numbers or text.\n"
 "\n"
@@ -39,15 +39,15 @@ static const char mconf_readme[] = N_(
 "\n"
 "To change any of these features, highlight it with the cursor\n"
 "keys and press <Y> to build it in, <M> to make it a module or\n"
-"<N> to removed it.  You may also press the <Space Bar> to cycle\n"
-"through the available options (ie. Y->N->M->Y).\n"
+"<N> to remove it.  You may also press the <Space Bar> to cycle\n"
+"through the available options (i.e. Y->N->M->Y).\n"
 "\n"
 "Some additional keyboard hints:\n"
 "\n"
 "Menus\n"
 "----------\n"
-"o  Use the Up/Down arrow keys (cursor keys) to highlight the item\n"
-"   you wish to change or submenu wish to select and press <Enter>.\n"
+"o  Use the Up/Down arrow keys (cursor keys) to highlight the item you\n"
+"   wish to change or the submenu you wish to select and press <Enter>.\n"
 "   Submenus are designated by \"--->\", empty ones by \"----\".\n"
 "\n"
 "   Shortcut: Press the option's highlighted letter (hotkey).\n"
@@ -65,7 +65,7 @@ static const char mconf_readme[] = N_(
 "             there is a delayed response which you may find annoying.\n"
 "\n"
 "   Also, the <TAB> and cursor keys will cycle between <Select>,\n"
-"   <Exit> and <Help>.\n"
+"   <Exit>, <Help>, <Save>, and <Load>.\n"
 "\n"
 "o  To get help with an item, use the cursor keys to highlight <Help>\n"
 "   and press <ENTER>.\n"
@@ -105,7 +105,7 @@ static const char mconf_readme[] = N_(
 "Text Box    (Help Window)\n"
 "--------\n"
 "o  Use the cursor keys to scroll up/down/left/right.  The VI editor\n"
-"   keys h,j,k,l function here as do <u>, <d>, <SPACE BAR> and <B> for \n"
+"   keys h,j,k,l function here as do <u>, <d>, <SPACE BAR> and <B> for\n"
 "   those who are familiar with less and lynx.\n"
 "\n"
 "o  Press <E>, <X>, <q>, <Enter> or <Esc><Esc> to exit.\n"
@@ -117,23 +117,21 @@ static const char mconf_readme[] = N_(
 "those who, for various reasons, find it necessary to switch\n"
 "between different configurations.\n"
 "\n"
-"At the end of the main menu you will find two options.  One is\n"
-"for saving the current configuration to a file of your choosing.\n"
-"The other option is for loading a previously saved alternate\n"
-"configuration.\n"
+"The <Save> button will let you save the current configuration to\n"
+"a file of your choosing.  Use the <Load> button to load a previously\n"
+"saved alternate configuration.\n"
 "\n"
-"Even if you don't use alternate configuration files, but you\n"
-"find during a Menuconfig session that you have completely messed\n"
-"up your settings, you may use the \"Load Alternate...\" option to\n"
-"restore your previously saved settings from \".config\" without\n"
-"restarting Menuconfig.\n"
+"Even if you don't use alternate configuration files, but you find\n"
+"during a Menuconfig session that you have completely messed up your\n"
+"settings, you may use the <Load> button to restore your previously\n"
+"saved settings from \".config\" without restarting Menuconfig.\n"
 "\n"
 "Other information\n"
 "-----------------\n"
-"If you use Menuconfig in an XTERM window make sure you have your\n"
-"$TERM variable set to point to a xterm definition which supports color.\n"
-"Otherwise, Menuconfig will look rather bad.  Menuconfig will not\n"
-"display correctly in a RXVT window because rxvt displays only one\n"
+"If you use Menuconfig in an XTERM window, make sure you have your\n"
+"$TERM variable set to point to an xterm definition which supports\n"
+"color.  Otherwise, Menuconfig will look rather bad.  Menuconfig will\n"
+"not display correctly in an RXVT window because rxvt displays only one\n"
 "intensity of color, bright.\n"
 "\n"
 "Menuconfig will display larger menus on screens or xterms which are\n"
@@ -148,8 +146,8 @@ static const char mconf_readme[] = N_(
 "\n"
 "Optional personality available\n"
 "------------------------------\n"
-"If you prefer to have all of the options listed in a single menu, rather\n"
-"than the default multimenu hierarchy, run the menuconfig with\n"
+"If you prefer to have all of the options listed in a single menu,\n"
+"rather than the default multimenu hierarchy, run the menuconfig with\n"
 "MENUCONFIG_MODE environment variable set to single_menu. Example:\n"
 "\n"
 "make MENUCONFIG_MODE=single_menu menuconfig\n"
@@ -172,7 +170,7 @@ static const char mconf_readme[] = N_(
 " mono       => selects colors suitable for monochrome displays\n"
 " blackbg    => selects a color scheme with black background\n"
 " classic    => theme with blue background. The classic look\n"
-" bluetitle  => a LCD friendly version of classic. (default)\n"
+" bluetitle  => an LCD friendly version of classic. (default)\n"
 "\n"),
 menu_instructions[] = N_(
 	"Arrow keys navigate the menu.  "
@@ -238,24 +236,24 @@ search_help[] = N_(
 	"Symbol: FOO [=m]\n"
 	"Type  : tristate\n"
 	"Prompt: Foo bus is used to drive the bar HW\n"
-	"  Defined at drivers/pci/Kconfig:47\n"
-	"  Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
 	"  Location:\n"
 	"    -> Bus options (PCI, PCMCIA, EISA, ISA)\n"
 	"      -> PCI support (PCI [=y])\n"
 	"(1)     -> PCI access mode (<choice> [=y])\n"
+	"  Defined at drivers/pci/Kconfig:47\n"
+	"  Depends on: X86_LOCAL_APIC && X86_IO_APIC || IA64\n"
 	"  Selects: LIBCRC32\n"
-	"  Selected by: BAR\n"
+	"  Selected by: BAR [=n]\n"
 	"-----------------------------------------------------------------\n"
 	"o The line 'Type:' shows the type of the configuration option for\n"
 	"  this symbol (boolean, tristate, string, ...)\n"
 	"o The line 'Prompt:' shows the text used in the menu structure for\n"
 	"  this symbol\n"
-	"o The 'Defined at' line tell at what file / line number the symbol\n"
+	"o The 'Defined at' line tells at what file / line number the symbol\n"
 	"  is defined\n"
-	"o The 'Depends on:' line tell what symbols needs to be defined for\n"
+	"o The 'Depends on:' line tells what symbols need to be defined for\n"
 	"  this symbol to be visible in the menu (selectable)\n"
-	"o The 'Location:' lines tell where in the menu structure this symbol\n"
+	"o The 'Location:' lines tells where in the menu structure this symbol\n"
 	"  is located\n"
 	"    A location followed by a [=y] indicates that this is a\n"
 	"    selectable menu item - and the current value is displayed inside\n"
@@ -263,9 +261,9 @@ search_help[] = N_(
 	"    Press the key in the (#) prefix to jump directly to that\n"
 	"    location. You will be returned to the current search results\n"
 	"    after exiting this new menu.\n"
-	"o The 'Selects:' line tell what symbol will be automatically\n"
+	"o The 'Selects:' line tells what symbols will be automatically\n"
 	"  selected if this symbol is selected (y or m)\n"
-	"o The 'Selected by' line tell what symbol has selected this symbol\n"
+	"o The 'Selected by' line tells what symbol has selected this symbol\n"
 	"\n"
 	"Only relevant lines are shown.\n"
 	"\n\n"
diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index c1d53200c306..b9701010de8c 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -597,7 +597,7 @@ static void get_prompt_str(struct gstr *r, struct property *prop,
 }
 
 /*
- * get peoperty of type P_SYMBOL
+ * get property of type P_SYMBOL
  */
 static struct property *get_symbol_prop(struct symbol *sym)
 {
diff --git a/scripts/kconfig/symbol.c b/scripts/kconfig/symbol.c
index c9a6775565bf..7caabdb51c64 100644
--- a/scripts/kconfig/symbol.c
+++ b/scripts/kconfig/symbol.c
@@ -1047,7 +1047,7 @@ sym_re_search_free:
  * When we check for recursive dependencies we use a stack to save
  * current state so we can print out relevant info to user.
  * The entries are located on the call stack so no need to free memory.
- * Note inser() remove() must always match to properly clear the stack.
+ * Note insert() remove() must always match to properly clear the stack.
  */
 static struct dep_stack {
 	struct dep_stack *prev, *next;
-- 
cgit 


From 57540f1dea6580fda0debaf3704d1b0e928a120e Mon Sep 17 00:00:00 2001
From: Martin Walch <walch.martin@web.de>
Date: Thu, 3 Oct 2013 18:32:02 +0200
Subject: kconfig: adjust warning message for conflicting types

Each symbol must have exactly one type assigned. However, if a symbol happens
to have two different types assigned at runtime, a warning is printed and the
first type is preserved while the second type is being ignored.

The warning message says

type of <symbol name> redefined from <first type> to <second type>

which may be misleading as it may create the impression that the second type
replaces the first type.

This patch clarifies this by changing the warning to

ignoring type redefinition of <symbol name> from <first type> to <second type>

Signed-off-by: Martin Walch <walch.martin@web.de>
Acked-by: Wang YanQing <udknight@gmail.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
---
 scripts/kconfig/menu.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index b9701010de8c..9e69f1934836 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -119,9 +119,10 @@ void menu_set_type(int type)
 		sym->type = type;
 		return;
 	}
-	menu_warn(current_entry, "type of '%s' redefined from '%s' to '%s'",
-	    sym->name ? sym->name : "<choice>",
-	    sym_type_name(sym->type), sym_type_name(type));
+	menu_warn(current_entry,
+		"ignoring type redefinition of '%s' from '%s' to '%s'",
+		sym->name ? sym->name : "<choice>",
+		sym_type_name(sym->type), sym_type_name(type));
 }
 
 struct property *menu_add_prop(enum prop_type type, char *prompt, struct expr *expr, struct expr *dep)
-- 
cgit 


From 3381960031a13d1a1ec7bdef60f6a9931d500371 Mon Sep 17 00:00:00 2001
From: Martin Walch <walch.martin@web.de>
Date: Thu, 3 Oct 2013 18:33:47 +0200
Subject: kconfig: remove unused definition from scanner

The definition ws [ \n\t] is not used anywhere. Drop it to avoid confusion.

As it is a dead definition, any changes in the resulting code generated by
flex would be surprising (actually testing this showed that there are really
no changes). So, there is no need to touch the existing zconf.lex.c_shipped.

Signed-off-by: Martin Walch <walch.martin@web.de>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: "Yann E. MORIN: <yann.morin.1998@free.fr>
---
 scripts/kconfig/zconf.l | 1 -
 1 file changed, 1 deletion(-)

diff --git a/scripts/kconfig/zconf.l b/scripts/kconfig/zconf.l
index 6555a475453b..1a9f53e535ca 100644
--- a/scripts/kconfig/zconf.l
+++ b/scripts/kconfig/zconf.l
@@ -68,7 +68,6 @@ static void alloc_string(const char *str, int size)
 }
 %}
 
-ws	[ \n\t]
 n	[A-Za-z0-9_]
 
 %%
-- 
cgit 


From 503c823048e81cc85c0e9d8c297cc70203e335e5 Mon Sep 17 00:00:00 2001
From: Martin Walch <walch.martin@web.de>
Date: Thu, 3 Oct 2013 18:35:16 +0200
Subject: kconfig: fix bug in search results string: use strlen(gstr->s), not
 gstr->len

The struct gstr has a capacity that may differ from the actual string length.

However, a string manipulation in the function search_conf made the assumption
that it is the same, which led to messing up some search results, especially
when the content of the gstr in use had not yet reached at least 63 chars.

Signed-off-by: Martin Walch <walch.martin@web.de>
Acked-by: Wang YanQing <udknight@gmail.com>
Acked-by: Benjamin Poirier <bpoirier@suse.de>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
---
 scripts/kconfig/menu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/kconfig/menu.c b/scripts/kconfig/menu.c
index 9e69f1934836..db1512ae30cc 100644
--- a/scripts/kconfig/menu.c
+++ b/scripts/kconfig/menu.c
@@ -584,7 +584,7 @@ static void get_prompt_str(struct gstr *r, struct property *prop,
 		for (j = 4; --i >= 0; j += 2) {
 			menu = submenu[i];
 			if (head && location && menu == location)
-				jump->offset = r->len - 1;
+				jump->offset = strlen(r->s);
 			str_printf(r, "%*c-> %s", j, ' ',
 				   _(menu_get_prompt(menu)));
 			if (menu->sym) {
-- 
cgit 


From 00d4f8fc2c729b1baf723cacd2b5942b032b6784 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Sun, 6 Oct 2013 19:21:31 +0100
Subject: xconfig: Fix the filename for GUI settings

Currently the qconf program invoked by 'make xconfig' stores GUI
settings in the file ~/.config/Unknown\ Organization.conf.  This name
is apparently generated by the QSettings class when no organisation
or application name are specified.

This is obviously not a sensible filename (nor does it seem sensible
that these QSettings parameters are optional!).  Pass the names
'kernel.org' and 'qconf', resuling in the filename
~/.config/kernel.org/qconf.conf.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
---
 scripts/kconfig/qconf.cc | 5 +++++
 scripts/kconfig/qconf.h  | 1 +
 2 files changed, 6 insertions(+)

diff --git a/scripts/kconfig/qconf.cc b/scripts/kconfig/qconf.cc
index 1500c38f0cca..9d3b04b0769c 100644
--- a/scripts/kconfig/qconf.cc
+++ b/scripts/kconfig/qconf.cc
@@ -69,6 +69,11 @@ static inline QString qgettext(const QString& str)
 	return QString::fromLocal8Bit(gettext(str.latin1()));
 }
 
+ConfigSettings::ConfigSettings()
+	: QSettings("kernel.org", "qconf")
+{
+}
+
 /**
  * Reads a list of integer values from the application settings.
  */
diff --git a/scripts/kconfig/qconf.h b/scripts/kconfig/qconf.h
index 3715b3e7212c..bde0c6b6f9e8 100644
--- a/scripts/kconfig/qconf.h
+++ b/scripts/kconfig/qconf.h
@@ -32,6 +32,7 @@ class ConfigMainWindow;
 
 class ConfigSettings : public QSettings {
 public:
+	ConfigSettings();
 	Q3ValueList<int> readSizes(const QString& key, bool *ok);
 	bool writeSizes(const QString& key, const Q3ValueList<int>& value);
 };
-- 
cgit 


From 88877d2b9727a14431bfe48216ff86331ab47ea5 Mon Sep 17 00:00:00 2001
From: Brian Foster <bfoster@redhat.com>
Date: Fri, 20 Sep 2013 11:06:11 -0400
Subject: xfs: push down inactive transaction mgmt for ifree

Push the inode free work performed during xfs_inactive() down into
a new xfs_inactive_ifree() helper. This clears xfs_inactive() from
all inode locking and transaction management more directly
associated with freeing the inode xattrs, extents and the inode
itself.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_inode.c | 121 +++++++++++++++++++++++++++++++----------------------
 1 file changed, 71 insertions(+), 50 deletions(-)

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 7b86f643046b..223d1a163b2d 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1714,6 +1714,74 @@ error_unlock:
 	return error;
 }
 
+/*
+ * xfs_inactive_ifree()
+ *
+ * Perform the inode free when an inode is unlinked.
+ */
+STATIC int
+xfs_inactive_ifree(
+	struct xfs_inode *ip)
+{
+	xfs_bmap_free_t		free_list;
+	xfs_fsblock_t		first_block;
+	int			committed;
+	struct xfs_mount	*mp = ip->i_mount;
+	struct xfs_trans	*tp;
+	int			error;
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_INACTIVE);
+	error = xfs_trans_reserve(tp, &M_RES(mp)->tr_ifree, 0, 0);
+	if (error) {
+		ASSERT(XFS_FORCED_SHUTDOWN(mp));
+		xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES);
+		return error;
+	}
+
+	xfs_ilock(ip, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin(tp, ip, 0);
+
+	xfs_bmap_init(&free_list, &first_block);
+	error = xfs_ifree(tp, ip, &free_list);
+	if (error) {
+		/*
+		 * If we fail to free the inode, shut down.  The cancel
+		 * might do that, we need to make sure.  Otherwise the
+		 * inode might be lost for a long time or forever.
+		 */
+		if (!XFS_FORCED_SHUTDOWN(mp)) {
+			xfs_notice(mp, "%s: xfs_ifree returned error %d",
+				__func__, error);
+			xfs_force_shutdown(mp, SHUTDOWN_META_IO_ERROR);
+		}
+		xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT);
+		xfs_iunlock(ip, XFS_ILOCK_EXCL);
+		return error;
+	}
+
+	/*
+	 * Credit the quota account(s). The inode is gone.
+	 */
+	xfs_trans_mod_dquot_byino(tp, ip, XFS_TRANS_DQ_ICOUNT, -1);
+
+	/*
+	 * Just ignore errors at this point.  There is nothing we can
+	 * do except to try to keep going. Make sure it's not a silent
+	 * error.
+	 */
+	error = xfs_bmap_finish(&tp,  &free_list, &committed);
+	if (error)
+		xfs_notice(mp, "%s: xfs_bmap_finish returned error %d",
+			__func__, error);
+	error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
+	if (error)
+		xfs_notice(mp, "%s: xfs_trans_commit returned error %d",
+			__func__, error);
+
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	return 0;
+}
+
 /*
  * xfs_inactive
  *
@@ -1726,10 +1794,6 @@ int
 xfs_inactive(
 	xfs_inode_t	*ip)
 {
-	xfs_bmap_free_t		free_list;
-	xfs_fsblock_t		first_block;
-	int			committed;
-	struct xfs_trans	*tp;
 	struct xfs_mount	*mp;
 	int			error;
 	int			truncate = 0;
@@ -1801,60 +1865,17 @@ xfs_inactive(
 
 	ASSERT(ip->i_d.di_anextents == 0);
 
-	tp = xfs_trans_alloc(mp, XFS_TRANS_INACTIVE);
-	error = xfs_trans_reserve(tp, &M_RES(mp)->tr_ifree, 0, 0);
-	if (error) {
-		ASSERT(XFS_FORCED_SHUTDOWN(mp));
-		xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES);
-		goto out;
-	}
-
-	xfs_ilock(ip, XFS_ILOCK_EXCL);
-	xfs_trans_ijoin(tp, ip, 0);
-
 	/*
 	 * Free the inode.
 	 */
-	xfs_bmap_init(&free_list, &first_block);
-	error = xfs_ifree(tp, ip, &free_list);
-	if (error) {
-		/*
-		 * If we fail to free the inode, shut down.  The cancel
-		 * might do that, we need to make sure.  Otherwise the
-		 * inode might be lost for a long time or forever.
-		 */
-		if (!XFS_FORCED_SHUTDOWN(mp)) {
-			xfs_notice(mp, "%s: xfs_ifree returned error %d",
-				__func__, error);
-			xfs_force_shutdown(mp, SHUTDOWN_META_IO_ERROR);
-		}
-		xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT);
-	} else {
-		/*
-		 * Credit the quota account(s). The inode is gone.
-		 */
-		xfs_trans_mod_dquot_byino(tp, ip, XFS_TRANS_DQ_ICOUNT, -1);
-
-		/*
-		 * Just ignore errors at this point.  There is nothing we can
-		 * do except to try to keep going. Make sure it's not a silent
-		 * error.
-		 */
-		error = xfs_bmap_finish(&tp,  &free_list, &committed);
-		if (error)
-			xfs_notice(mp, "%s: xfs_bmap_finish returned error %d",
-				__func__, error);
-		error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
-		if (error)
-			xfs_notice(mp, "%s: xfs_trans_commit returned error %d",
-				__func__, error);
-	}
+	error = xfs_inactive_ifree(ip);
+	if (error)
+		goto out;
 
 	/*
 	 * Release the dquots held by inode, if any.
 	 */
 	xfs_qm_dqdetach(ip);
-	xfs_iunlock(ip, XFS_ILOCK_EXCL);
 out:
 	return VN_INACTIVE_CACHE;
 }
-- 
cgit 


From 74564fb48cbfcb5b433c1baec1f3158ea638b203 Mon Sep 17 00:00:00 2001
From: Brian Foster <bfoster@redhat.com>
Date: Fri, 20 Sep 2013 11:06:12 -0400
Subject: xfs: clean up xfs_inactive() error handling, kill
 VN_INACTIVE_[NO]CACHE

The xfs_inactive() return value is meaningless. Turn xfs_inactive()
into a void function and clean up the error handling appropriately.
Kill the VN_INACTIVE_[NO]CACHE directives as they are not relevant
to Linux.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_inode.c | 28 +++++++++++-----------------
 fs/xfs/xfs_inode.h |  2 +-
 fs/xfs/xfs_vnode.h |  8 --------
 3 files changed, 12 insertions(+), 26 deletions(-)

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 223d1a163b2d..5fce7261a64b 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1790,7 +1790,7 @@ xfs_inactive_ifree(
  * now be truncated.  Also, we clear all of the read-ahead state
  * kept for the inode here since the file is now closed.
  */
-int
+void
 xfs_inactive(
 	xfs_inode_t	*ip)
 {
@@ -1805,16 +1805,14 @@ xfs_inactive(
 	if (ip->i_d.di_mode == 0) {
 		ASSERT(ip->i_df.if_real_bytes == 0);
 		ASSERT(ip->i_df.if_broot_bytes == 0);
-		return VN_INACTIVE_CACHE;
+		return;
 	}
 
 	mp = ip->i_mount;
 
-	error = 0;
-
 	/* If this is a read-only mount, don't do this (would generate I/O) */
 	if (mp->m_flags & XFS_MOUNT_RDONLY)
-		goto out;
+		return;
 
 	if (ip->i_d.di_nlink != 0) {
 		/*
@@ -1822,12 +1820,10 @@ xfs_inactive(
 		 * cache. Post-eof blocks must be freed, lest we end up with
 		 * broken free space accounting.
 		 */
-		if (xfs_can_free_eofblocks(ip, true)) {
-			error = xfs_free_eofblocks(mp, ip, false);
-			if (error)
-				return VN_INACTIVE_CACHE;
-		}
-		goto out;
+		if (xfs_can_free_eofblocks(ip, true))
+			xfs_free_eofblocks(mp, ip, false);
+
+		return;
 	}
 
 	if (S_ISREG(ip->i_d.di_mode) &&
@@ -1837,14 +1833,14 @@ xfs_inactive(
 
 	error = xfs_qm_dqattach(ip, 0);
 	if (error)
-		return VN_INACTIVE_CACHE;
+		return;
 
 	if (S_ISLNK(ip->i_d.di_mode))
 		error = xfs_inactive_symlink(ip);
 	else if (truncate)
 		error = xfs_inactive_truncate(ip);
 	if (error)
-		goto out;
+		return;
 
 	/*
 	 * If there are attributes associated with the file then blow them away
@@ -1857,7 +1853,7 @@ xfs_inactive(
 
 		error = xfs_attr_inactive(ip);
 		if (error)
-			goto out;
+			return;
 	}
 
 	if (ip->i_afp)
@@ -1870,14 +1866,12 @@ xfs_inactive(
 	 */
 	error = xfs_inactive_ifree(ip);
 	if (error)
-		goto out;
+		return;
 
 	/*
 	 * Release the dquots held by inode, if any.
 	 */
 	xfs_qm_dqdetach(ip);
-out:
-	return VN_INACTIVE_CACHE;
 }
 
 /*
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 4a91358c1470..cce62ce1a73a 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -316,7 +316,7 @@ static inline int xfs_isiflocked(struct xfs_inode *ip)
 
 
 int		xfs_release(struct xfs_inode *ip);
-int		xfs_inactive(struct xfs_inode *ip);
+void		xfs_inactive(struct xfs_inode *ip);
 int		xfs_lookup(struct xfs_inode *dp, struct xfs_name *name,
 			   struct xfs_inode **ipp, struct xfs_name *ci_name);
 int		xfs_create(struct xfs_inode *dp, struct xfs_name *name,
diff --git a/fs/xfs/xfs_vnode.h b/fs/xfs/xfs_vnode.h
index db14d0c08682..3e8e797c6d11 100644
--- a/fs/xfs/xfs_vnode.h
+++ b/fs/xfs/xfs_vnode.h
@@ -24,14 +24,6 @@ struct file;
 struct xfs_inode;
 struct attrlist_cursor_kern;
 
-/*
- * Return values for xfs_inactive.  A return value of
- * VN_INACTIVE_NOCACHE implies that the file system behavior
- * has disassociated its state and bhv_desc_t from the vnode.
- */
-#define	VN_INACTIVE_CACHE	0
-#define	VN_INACTIVE_NOCACHE	1
-
 /*
  * Flags for read/write calls - same values as IRIX
  */
-- 
cgit 


From 493a86365bebdae944a9f2bbf21e106a77c92928 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Tue, 8 Oct 2013 15:52:12 -0300
Subject: ARM: dts: imx51-babbage: Make DVI and WVGA panel functional

Currently we get the following errors on imx51-babbage:

/display@di0: could not find display-timings node
/display@di0: no timings specified
/display@di1: could not find display-timings node
/display@di1: no timings specified
imx-drm imx-drm: failed to allocate buffer with size 0

Provide timing values for IPU1, which is connected to a DVI bridge and
to IPU2, which can be connected to the WVGA panel, so that both of them can
be functional.

While at it, disable the WVGA panel, so that DVI output becomes the default one.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx51-babbage.dts | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/arch/arm/boot/dts/imx51-babbage.dts b/arch/arm/boot/dts/imx51-babbage.dts
index f13f33906dde..be1407cf5abd 100644
--- a/arch/arm/boot/dts/imx51-babbage.dts
+++ b/arch/arm/boot/dts/imx51-babbage.dts
@@ -27,6 +27,20 @@
 		interface-pix-fmt = "rgb24";
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_ipu_disp1_1>;
+		display-timings {
+			native-mode = <&timing0>;
+			timing0: dvi {
+				clock-frequency = <65000000>;
+				hactive = <1024>;
+				vactive = <768>;
+				hback-porch = <220>;
+				hfront-porch = <40>;
+				vback-porch = <21>;
+				vfront-porch = <7>;
+				hsync-len = <60>;
+				vsync-len = <10>;
+			};
+		};
 	};
 
 	display@di1 {
@@ -35,6 +49,25 @@
 		interface-pix-fmt = "rgb565";
 		pinctrl-names = "default";
 		pinctrl-0 = <&pinctrl_ipu_disp2_1>;
+		status = "disabled";
+		display-timings {
+			native-mode = <&timing1>;
+			timing1: claawvga {
+				clock-frequency = <27000000>;
+				hactive = <800>;
+				vactive = <480>;
+				hback-porch = <40>;
+				hfront-porch = <60>;
+				vback-porch = <10>;
+				vfront-porch = <10>;
+				hsync-len = <20>;
+				vsync-len = <10>;
+				hsync-active = <0>;
+				vsync-active = <0>;
+				de-active = <1>;
+				pixelclk-active = <0>;
+			};
+		};
 	};
 
 	gpio-keys {
-- 
cgit 


From b343ca84b4e3ba65508503333c923a797801a588 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 8 Oct 2013 21:52:03 -0400
Subject: Revert "veth: Showing peer of veth type dev in ip link (kernel side)"

This reverts commit 612c337306f00dc8d396830212de51c475844791.

As per Stephen Hemminger, the layout of the netlink attribute
is not implemented correctly so revert this for now.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/veth.c | 21 ---------------------
 1 file changed, 21 deletions(-)

diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index 54187b9c0efc..eee1f19ef1e9 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -434,25 +434,6 @@ static const struct nla_policy veth_policy[VETH_INFO_MAX + 1] = {
 	[VETH_INFO_PEER]	= { .len = sizeof(struct ifinfomsg) },
 };
 
-static size_t veth_get_size(const struct net_device *dev)
-{
-	return nla_total_size(sizeof(u64)) + /* VETH_INFO_PEER */
-		0;
-}
-
-static int veth_fill_info(struct sk_buff *skb, const struct net_device *dev)
-{
-	struct veth_priv *priv = netdev_priv(dev);
-	struct net_device *peer = rtnl_dereference(priv->peer);
-	u64 peer_ifindex;
-
-	peer_ifindex = peer ? peer->ifindex : 0;
-	if (nla_put_u64(skb, VETH_INFO_PEER, peer_ifindex))
-		return -EMSGSIZE;
-
-	return 0;
-}
-
 static struct rtnl_link_ops veth_link_ops = {
 	.kind		= DRV_NAME,
 	.priv_size	= sizeof(struct veth_priv),
@@ -462,8 +443,6 @@ static struct rtnl_link_ops veth_link_ops = {
 	.dellink	= veth_dellink,
 	.policy		= veth_policy,
 	.maxtype	= VETH_INFO_MAX,
-	.get_size	= veth_get_size,
-	.fill_info	= veth_fill_info,
 };
 
 /*
-- 
cgit 


From 05dbc7b59481ca891bbcfe6799a562d48159fbf7 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 3 Oct 2013 00:22:02 -0700
Subject: tcp/dccp: remove twchain

TCP listener refactoring, part 3 :

Our goal is to hash SYN_RECV sockets into main ehash for fast lookup,
and parallel SYN processing.

Current inet_ehash_bucket contains two chains, one for ESTABLISH (and
friend states) sockets, another for TIME_WAIT sockets only.

As the hash table is sized to get at most one socket per bucket, it
makes little sense to have separate twchain, as it makes the lookup
slightly more complicated, and doubles hash table memory usage.

If we make sure all socket types have the lookup keys at the same
offsets, we can use a generic and faster lookup. It turns out TIME_WAIT
and ESTABLISHED sockets already have common lookup fields for IPv4.

[ INET_TW_MATCH() is no longer needed ]

I'll provide a follow-up to factorize IPv6 lookup as well, to remove
INET6_TW_MATCH()

This way, SYN_RECV pseudo sockets will be supported the same.

A new sock_gen_put() helper is added, doing either a sock_put() or
inet_twsk_put() [ and will support SYN_RECV later ].

Note this helper should only be called in real slow path, when rcu
lookup found a socket that was moved to another identity (freed/reused
immediately), but could eventually be used in other contexts, like
sock_edemux()

Before patch :

dmesg | grep "TCP established"

TCP established hash table entries: 524288 (order: 11, 8388608 bytes)

After patch :

TCP established hash table entries: 524288 (order: 10, 4194304 bytes)

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/inet_hashtables.h    |  9 +----
 include/net/inet_timewait_sock.h | 13 +------
 include/net/sock.h               |  8 +++-
 include/net/tcp.h                |  1 -
 net/dccp/proto.c                 |  4 +-
 net/ipv4/inet_diag.c             | 48 +++++++----------------
 net/ipv4/inet_hashtables.c       | 83 ++++++++++++++--------------------------
 net/ipv4/inet_timewait_sock.c    | 55 +++++++++++++-------------
 net/ipv4/tcp.c                   |  5 +--
 net/ipv4/tcp_ipv4.c              | 83 +++++++---------------------------------
 net/ipv6/inet6_hashtables.c      | 75 +++++++++++++++---------------------
 net/ipv6/tcp_ipv6.c              |  9 +++--
 12 files changed, 132 insertions(+), 261 deletions(-)

diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index 10d6838378c3..1bdb47715def 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -37,12 +37,11 @@
 #include <asm/byteorder.h>
 
 /* This is for all connections with a full identity, no wildcards.
- * One chain is dedicated to TIME_WAIT sockets.
- * I'll experiment with dynamic table growth later.
+ * The 'e' prefix stands for Establish, but we really put all sockets
+ * but LISTEN ones.
  */
 struct inet_ehash_bucket {
 	struct hlist_nulls_head chain;
-	struct hlist_nulls_head twchain;
 };
 
 /* There are a few simple rules, which allow for local port reuse by
@@ -123,7 +122,6 @@ struct inet_hashinfo {
 	 *
 	 *          TCP_ESTABLISHED <= sk->sk_state < TCP_CLOSE
 	 *
-	 * TIME_WAIT sockets use a separate chain (twchain).
 	 */
 	struct inet_ehash_bucket	*ehash;
 	spinlock_t			*ehash_locks;
@@ -318,9 +316,6 @@ static inline struct sock *inet_lookup_listener(struct net *net,
 	 net_eq(sock_net(__sk), (__net)))
 #endif /* 64-bit arch */
 
-#define INET_TW_MATCH(__sk, __net, __cookie, __saddr, __daddr, __ports, __dif)\
-	INET_MATCH(__sk, __net, __cookie, __saddr, __daddr, __ports, __dif)
-
 /*
  * Sockets in TCP_CLOSE state are _always_ taken out of the hash, so we need
  * not check it for lookups anymore, thanks Alexey. -DaveM
diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h
index f528d1b0ac95..de9e3ab7d43d 100644
--- a/include/net/inet_timewait_sock.h
+++ b/include/net/inet_timewait_sock.h
@@ -141,18 +141,6 @@ struct inet_timewait_sock {
 };
 #define tw_tclass tw_tos
 
-static inline void inet_twsk_add_node_rcu(struct inet_timewait_sock *tw,
-				      struct hlist_nulls_head *list)
-{
-	hlist_nulls_add_head_rcu(&tw->tw_node, list);
-}
-
-static inline void inet_twsk_add_bind_node(struct inet_timewait_sock *tw,
-					   struct hlist_head *list)
-{
-	hlist_add_head(&tw->tw_bind_node, list);
-}
-
 static inline int inet_twsk_dead_hashed(const struct inet_timewait_sock *tw)
 {
 	return !hlist_unhashed(&tw->tw_death_node);
@@ -192,6 +180,7 @@ static inline struct inet_timewait_sock *inet_twsk(const struct sock *sk)
 	return (struct inet_timewait_sock *)sk;
 }
 
+void inet_twsk_free(struct inet_timewait_sock *tw);
 void inet_twsk_put(struct inet_timewait_sock *tw);
 
 int inet_twsk_unhash(struct inet_timewait_sock *tw);
diff --git a/include/net/sock.h b/include/net/sock.h
index 7cf8d2331afb..3f3e48c4704d 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -156,7 +156,7 @@ typedef __u64 __bitwise __addrpair;
  */
 struct sock_common {
 	/* skc_daddr and skc_rcv_saddr must be grouped on a 8 bytes aligned
-	 * address on 64bit arches : cf INET_MATCH() and INET_TW_MATCH()
+	 * address on 64bit arches : cf INET_MATCH()
 	 */
 	union {
 		__addrpair	skc_addrpair;
@@ -301,6 +301,8 @@ struct sock {
 #define sk_dontcopy_end		__sk_common.skc_dontcopy_end
 #define sk_hash			__sk_common.skc_hash
 #define sk_portpair		__sk_common.skc_portpair
+#define sk_num			__sk_common.skc_num
+#define sk_dport		__sk_common.skc_dport
 #define sk_addrpair		__sk_common.skc_addrpair
 #define sk_daddr		__sk_common.skc_daddr
 #define sk_rcv_saddr		__sk_common.skc_rcv_saddr
@@ -1653,6 +1655,10 @@ static inline void sock_put(struct sock *sk)
 	if (atomic_dec_and_test(&sk->sk_refcnt))
 		sk_free(sk);
 }
+/* Generic version of sock_put(), dealing with all sockets
+ * (TCP_TIMEWAIT, ESTABLISHED...)
+ */
+void sock_gen_put(struct sock *sk);
 
 int sk_receive_skb(struct sock *sk, struct sk_buff *skb, const int nested);
 
diff --git a/include/net/tcp.h b/include/net/tcp.h
index de870ee5582d..39bbfa1602b2 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1519,7 +1519,6 @@ enum tcp_seq_states {
 	TCP_SEQ_STATE_LISTENING,
 	TCP_SEQ_STATE_OPENREQ,
 	TCP_SEQ_STATE_ESTABLISHED,
-	TCP_SEQ_STATE_TIME_WAIT,
 };
 
 int tcp_seq_open(struct inode *inode, struct file *file);
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index ba64750f0387..eb892b4f4814 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -1158,10 +1158,8 @@ static int __init dccp_init(void)
 		goto out_free_bind_bucket_cachep;
 	}
 
-	for (i = 0; i <= dccp_hashinfo.ehash_mask; i++) {
+	for (i = 0; i <= dccp_hashinfo.ehash_mask; i++)
 		INIT_HLIST_NULLS_HEAD(&dccp_hashinfo.ehash[i].chain, i);
-		INIT_HLIST_NULLS_HEAD(&dccp_hashinfo.ehash[i].twchain, i);
-	}
 
 	if (inet_ehash_locks_alloc(&dccp_hashinfo))
 			goto out_free_dccp_ehash;
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index 22000279efc8..8e1e40653357 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -635,12 +635,14 @@ static int inet_csk_diag_dump(struct sock *sk,
 				  cb->nlh->nlmsg_seq, NLM_F_MULTI, cb->nlh);
 }
 
-static int inet_twsk_diag_dump(struct inet_timewait_sock *tw,
+static int inet_twsk_diag_dump(struct sock *sk,
 			       struct sk_buff *skb,
 			       struct netlink_callback *cb,
 			       struct inet_diag_req_v2 *r,
 			       const struct nlattr *bc)
 {
+	struct inet_timewait_sock *tw = inet_twsk(sk);
+
 	if (bc != NULL) {
 		struct inet_diag_entry entry;
 
@@ -911,8 +913,7 @@ skip_listen_ht:
 
 		num = 0;
 
-		if (hlist_nulls_empty(&head->chain) &&
-			hlist_nulls_empty(&head->twchain))
+		if (hlist_nulls_empty(&head->chain))
 			continue;
 
 		if (i > s_i)
@@ -920,7 +921,7 @@ skip_listen_ht:
 
 		spin_lock_bh(lock);
 		sk_nulls_for_each(sk, node, &head->chain) {
-			struct inet_sock *inet = inet_sk(sk);
+			int res;
 
 			if (!net_eq(sock_net(sk), net))
 				continue;
@@ -929,15 +930,19 @@ skip_listen_ht:
 			if (!(r->idiag_states & (1 << sk->sk_state)))
 				goto next_normal;
 			if (r->sdiag_family != AF_UNSPEC &&
-					sk->sk_family != r->sdiag_family)
+			    sk->sk_family != r->sdiag_family)
 				goto next_normal;
-			if (r->id.idiag_sport != inet->inet_sport &&
+			if (r->id.idiag_sport != htons(sk->sk_num) &&
 			    r->id.idiag_sport)
 				goto next_normal;
-			if (r->id.idiag_dport != inet->inet_dport &&
+			if (r->id.idiag_dport != sk->sk_dport &&
 			    r->id.idiag_dport)
 				goto next_normal;
-			if (inet_csk_diag_dump(sk, skb, cb, r, bc) < 0) {
+			if (sk->sk_state == TCP_TIME_WAIT)
+				res = inet_twsk_diag_dump(sk, skb, cb, r, bc);
+			else
+				res = inet_csk_diag_dump(sk, skb, cb, r, bc);
+			if (res < 0) {
 				spin_unlock_bh(lock);
 				goto done;
 			}
@@ -945,33 +950,6 @@ next_normal:
 			++num;
 		}
 
-		if (r->idiag_states & TCPF_TIME_WAIT) {
-			struct inet_timewait_sock *tw;
-
-			inet_twsk_for_each(tw, node,
-				    &head->twchain) {
-				if (!net_eq(twsk_net(tw), net))
-					continue;
-
-				if (num < s_num)
-					goto next_dying;
-				if (r->sdiag_family != AF_UNSPEC &&
-						tw->tw_family != r->sdiag_family)
-					goto next_dying;
-				if (r->id.idiag_sport != tw->tw_sport &&
-				    r->id.idiag_sport)
-					goto next_dying;
-				if (r->id.idiag_dport != tw->tw_dport &&
-				    r->id.idiag_dport)
-					goto next_dying;
-				if (inet_twsk_diag_dump(tw, skb, cb, r, bc) < 0) {
-					spin_unlock_bh(lock);
-					goto done;
-				}
-next_dying:
-				++num;
-			}
-		}
 		spin_unlock_bh(lock);
 	}
 
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index ae199596b9b0..a4b66bbe4f21 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -230,6 +230,19 @@ begin:
 }
 EXPORT_SYMBOL_GPL(__inet_lookup_listener);
 
+/* All sockets share common refcount, but have different destructors */
+void sock_gen_put(struct sock *sk)
+{
+	if (!atomic_dec_and_test(&sk->sk_refcnt))
+		return;
+
+	if (sk->sk_state == TCP_TIME_WAIT)
+		inet_twsk_free(inet_twsk(sk));
+	else
+		sk_free(sk);
+}
+EXPORT_SYMBOL_GPL(sock_gen_put);
+
 struct sock *__inet_lookup_established(struct net *net,
 				  struct inet_hashinfo *hashinfo,
 				  const __be32 saddr, const __be16 sport,
@@ -255,13 +268,13 @@ begin:
 		if (likely(INET_MATCH(sk, net, acookie,
 				      saddr, daddr, ports, dif))) {
 			if (unlikely(!atomic_inc_not_zero(&sk->sk_refcnt)))
-				goto begintw;
+				goto out;
 			if (unlikely(!INET_MATCH(sk, net, acookie,
 						 saddr, daddr, ports, dif))) {
-				sock_put(sk);
+				sock_gen_put(sk);
 				goto begin;
 			}
-			goto out;
+			goto found;
 		}
 	}
 	/*
@@ -271,37 +284,9 @@ begin:
 	 */
 	if (get_nulls_value(node) != slot)
 		goto begin;
-
-begintw:
-	/* Must check for a TIME_WAIT'er before going to listener hash. */
-	sk_nulls_for_each_rcu(sk, node, &head->twchain) {
-		if (sk->sk_hash != hash)
-			continue;
-		if (likely(INET_TW_MATCH(sk, net, acookie,
-					 saddr, daddr, ports,
-					 dif))) {
-			if (unlikely(!atomic_inc_not_zero(&sk->sk_refcnt))) {
-				sk = NULL;
-				goto out;
-			}
-			if (unlikely(!INET_TW_MATCH(sk, net, acookie,
-						    saddr, daddr, ports,
-						    dif))) {
-				inet_twsk_put(inet_twsk(sk));
-				goto begintw;
-			}
-			goto out;
-		}
-	}
-	/*
-	 * if the nulls value we got at the end of this lookup is
-	 * not the expected one, we must restart lookup.
-	 * We probably met an item that was moved to another chain.
-	 */
-	if (get_nulls_value(node) != slot)
-		goto begintw;
-	sk = NULL;
 out:
+	sk = NULL;
+found:
 	rcu_read_unlock();
 	return sk;
 }
@@ -326,39 +311,29 @@ static int __inet_check_established(struct inet_timewait_death_row *death_row,
 	spinlock_t *lock = inet_ehash_lockp(hinfo, hash);
 	struct sock *sk2;
 	const struct hlist_nulls_node *node;
-	struct inet_timewait_sock *tw;
+	struct inet_timewait_sock *tw = NULL;
 	int twrefcnt = 0;
 
 	spin_lock(lock);
 
-	/* Check TIME-WAIT sockets first. */
-	sk_nulls_for_each(sk2, node, &head->twchain) {
-		if (sk2->sk_hash != hash)
-			continue;
-
-		if (likely(INET_TW_MATCH(sk2, net, acookie,
-					 saddr, daddr, ports, dif))) {
-			tw = inet_twsk(sk2);
-			if (twsk_unique(sk, sk2, twp))
-				goto unique;
-			else
-				goto not_unique;
-		}
-	}
-	tw = NULL;
-
-	/* And established part... */
 	sk_nulls_for_each(sk2, node, &head->chain) {
 		if (sk2->sk_hash != hash)
 			continue;
+
 		if (likely(INET_MATCH(sk2, net, acookie,
-				      saddr, daddr, ports, dif)))
+					 saddr, daddr, ports, dif))) {
+			if (sk2->sk_state == TCP_TIME_WAIT) {
+				tw = inet_twsk(sk2);
+				if (twsk_unique(sk, sk2, twp))
+					break;
+			}
 			goto not_unique;
+		}
 	}
 
-unique:
 	/* Must record num and sport now. Otherwise we will see
-	 * in hash table socket with a funny identity. */
+	 * in hash table socket with a funny identity.
+	 */
 	inet->inet_num = lport;
 	inet->inet_sport = htons(lport);
 	sk->sk_hash = hash;
diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c
index 9bcd8f7234ec..6d592f8555fb 100644
--- a/net/ipv4/inet_timewait_sock.c
+++ b/net/ipv4/inet_timewait_sock.c
@@ -87,19 +87,11 @@ static void __inet_twsk_kill(struct inet_timewait_sock *tw,
 	refcnt += inet_twsk_bind_unhash(tw, hashinfo);
 	spin_unlock(&bhead->lock);
 
-#ifdef SOCK_REFCNT_DEBUG
-	if (atomic_read(&tw->tw_refcnt) != 1) {
-		pr_debug("%s timewait_sock %p refcnt=%d\n",
-			 tw->tw_prot->name, tw, atomic_read(&tw->tw_refcnt));
-	}
-#endif
-	while (refcnt) {
-		inet_twsk_put(tw);
-		refcnt--;
-	}
+	BUG_ON(refcnt >= atomic_read(&tw->tw_refcnt));
+	atomic_sub(refcnt, &tw->tw_refcnt);
 }
 
-static noinline void inet_twsk_free(struct inet_timewait_sock *tw)
+void inet_twsk_free(struct inet_timewait_sock *tw)
 {
 	struct module *owner = tw->tw_prot->owner;
 	twsk_destructor((struct sock *)tw);
@@ -118,6 +110,18 @@ void inet_twsk_put(struct inet_timewait_sock *tw)
 }
 EXPORT_SYMBOL_GPL(inet_twsk_put);
 
+static void inet_twsk_add_node_rcu(struct inet_timewait_sock *tw,
+				   struct hlist_nulls_head *list)
+{
+	hlist_nulls_add_head_rcu(&tw->tw_node, list);
+}
+
+static void inet_twsk_add_bind_node(struct inet_timewait_sock *tw,
+				    struct hlist_head *list)
+{
+	hlist_add_head(&tw->tw_bind_node, list);
+}
+
 /*
  * Enter the time wait state. This is called with locally disabled BH.
  * Essentially we whip up a timewait bucket, copy the relevant info into it
@@ -146,26 +150,21 @@ void __inet_twsk_hashdance(struct inet_timewait_sock *tw, struct sock *sk,
 	spin_lock(lock);
 
 	/*
-	 * Step 2: Hash TW into TIMEWAIT chain.
-	 * Should be done before removing sk from established chain
-	 * because readers are lockless and search established first.
+	 * Step 2: Hash TW into tcp ehash chain.
+	 * Notes :
+	 * - tw_refcnt is set to 3 because :
+	 * - We have one reference from bhash chain.
+	 * - We have one reference from ehash chain.
+	 * We can use atomic_set() because prior spin_lock()/spin_unlock()
+	 * committed into memory all tw fields.
 	 */
-	inet_twsk_add_node_rcu(tw, &ehead->twchain);
+	atomic_set(&tw->tw_refcnt, 1 + 1 + 1);
+	inet_twsk_add_node_rcu(tw, &ehead->chain);
 
-	/* Step 3: Remove SK from established hash. */
+	/* Step 3: Remove SK from hash chain */
 	if (__sk_nulls_del_node_init_rcu(sk))
 		sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);
 
-	/*
-	 * Notes :
-	 * - We initially set tw_refcnt to 0 in inet_twsk_alloc()
-	 * - We add one reference for the bhash link
-	 * - We add one reference for the ehash link
-	 * - We want this refcnt update done before allowing other
-	 *   threads to find this tw in ehash chain.
-	 */
-	atomic_add(1 + 1 + 1, &tw->tw_refcnt);
-
 	spin_unlock(lock);
 }
 EXPORT_SYMBOL_GPL(__inet_twsk_hashdance);
@@ -490,7 +489,9 @@ void inet_twsk_purge(struct inet_hashinfo *hashinfo,
 restart_rcu:
 		rcu_read_lock();
 restart:
-		sk_nulls_for_each_rcu(sk, node, &head->twchain) {
+		sk_nulls_for_each_rcu(sk, node, &head->chain) {
+			if (sk->sk_state != TCP_TIME_WAIT)
+				continue;
 			tw = inet_twsk(sk);
 			if ((tw->tw_family != family) ||
 				atomic_read(&twsk_net(tw)->count))
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 6e5617b9f9db..be4b161802e8 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -3137,10 +3137,9 @@ void __init tcp_init(void)
 					&tcp_hashinfo.ehash_mask,
 					0,
 					thash_entries ? 0 : 512 * 1024);
-	for (i = 0; i <= tcp_hashinfo.ehash_mask; i++) {
+	for (i = 0; i <= tcp_hashinfo.ehash_mask; i++)
 		INIT_HLIST_NULLS_HEAD(&tcp_hashinfo.ehash[i].chain, i);
-		INIT_HLIST_NULLS_HEAD(&tcp_hashinfo.ehash[i].twchain, i);
-	}
+
 	if (inet_ehash_locks_alloc(&tcp_hashinfo))
 		panic("TCP: failed to alloc ehash_locks");
 	tcp_hashinfo.bhash =
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 5d6b1a609da8..e4695dde1af6 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2194,18 +2194,6 @@ EXPORT_SYMBOL(tcp_v4_destroy_sock);
 #ifdef CONFIG_PROC_FS
 /* Proc filesystem TCP sock list dumping. */
 
-static inline struct inet_timewait_sock *tw_head(struct hlist_nulls_head *head)
-{
-	return hlist_nulls_empty(head) ? NULL :
-		list_entry(head->first, struct inet_timewait_sock, tw_node);
-}
-
-static inline struct inet_timewait_sock *tw_next(struct inet_timewait_sock *tw)
-{
-	return !is_a_nulls(tw->tw_node.next) ?
-		hlist_nulls_entry(tw->tw_node.next, typeof(*tw), tw_node) : NULL;
-}
-
 /*
  * Get next listener socket follow cur.  If cur is NULL, get first socket
  * starting from bucket given in st->bucket; when st->bucket is zero the
@@ -2309,10 +2297,9 @@ static void *listening_get_idx(struct seq_file *seq, loff_t *pos)
 	return rc;
 }
 
-static inline bool empty_bucket(struct tcp_iter_state *st)
+static inline bool empty_bucket(const struct tcp_iter_state *st)
 {
-	return hlist_nulls_empty(&tcp_hashinfo.ehash[st->bucket].chain) &&
-		hlist_nulls_empty(&tcp_hashinfo.ehash[st->bucket].twchain);
+	return hlist_nulls_empty(&tcp_hashinfo.ehash[st->bucket].chain);
 }
 
 /*
@@ -2329,7 +2316,6 @@ static void *established_get_first(struct seq_file *seq)
 	for (; st->bucket <= tcp_hashinfo.ehash_mask; ++st->bucket) {
 		struct sock *sk;
 		struct hlist_nulls_node *node;
-		struct inet_timewait_sock *tw;
 		spinlock_t *lock = inet_ehash_lockp(&tcp_hashinfo, st->bucket);
 
 		/* Lockless fast path for the common case of empty buckets */
@@ -2345,18 +2331,7 @@ static void *established_get_first(struct seq_file *seq)
 			rc = sk;
 			goto out;
 		}
-		st->state = TCP_SEQ_STATE_TIME_WAIT;
-		inet_twsk_for_each(tw, node,
-				   &tcp_hashinfo.ehash[st->bucket].twchain) {
-			if (tw->tw_family != st->family ||
-			    !net_eq(twsk_net(tw), net)) {
-				continue;
-			}
-			rc = tw;
-			goto out;
-		}
 		spin_unlock_bh(lock);
-		st->state = TCP_SEQ_STATE_ESTABLISHED;
 	}
 out:
 	return rc;
@@ -2365,7 +2340,6 @@ out:
 static void *established_get_next(struct seq_file *seq, void *cur)
 {
 	struct sock *sk = cur;
-	struct inet_timewait_sock *tw;
 	struct hlist_nulls_node *node;
 	struct tcp_iter_state *st = seq->private;
 	struct net *net = seq_file_net(seq);
@@ -2373,45 +2347,16 @@ static void *established_get_next(struct seq_file *seq, void *cur)
 	++st->num;
 	++st->offset;
 
-	if (st->state == TCP_SEQ_STATE_TIME_WAIT) {
-		tw = cur;
-		tw = tw_next(tw);
-get_tw:
-		while (tw && (tw->tw_family != st->family || !net_eq(twsk_net(tw), net))) {
-			tw = tw_next(tw);
-		}
-		if (tw) {
-			cur = tw;
-			goto out;
-		}
-		spin_unlock_bh(inet_ehash_lockp(&tcp_hashinfo, st->bucket));
-		st->state = TCP_SEQ_STATE_ESTABLISHED;
-
-		/* Look for next non empty bucket */
-		st->offset = 0;
-		while (++st->bucket <= tcp_hashinfo.ehash_mask &&
-				empty_bucket(st))
-			;
-		if (st->bucket > tcp_hashinfo.ehash_mask)
-			return NULL;
-
-		spin_lock_bh(inet_ehash_lockp(&tcp_hashinfo, st->bucket));
-		sk = sk_nulls_head(&tcp_hashinfo.ehash[st->bucket].chain);
-	} else
-		sk = sk_nulls_next(sk);
+	sk = sk_nulls_next(sk);
 
 	sk_nulls_for_each_from(sk, node) {
 		if (sk->sk_family == st->family && net_eq(sock_net(sk), net))
-			goto found;
+			return sk;
 	}
 
-	st->state = TCP_SEQ_STATE_TIME_WAIT;
-	tw = tw_head(&tcp_hashinfo.ehash[st->bucket].twchain);
-	goto get_tw;
-found:
-	cur = sk;
-out:
-	return cur;
+	spin_unlock_bh(inet_ehash_lockp(&tcp_hashinfo, st->bucket));
+	++st->bucket;
+	return established_get_first(seq);
 }
 
 static void *established_get_idx(struct seq_file *seq, loff_t pos)
@@ -2464,10 +2409,9 @@ static void *tcp_seek_last_pos(struct seq_file *seq)
 		if (rc)
 			break;
 		st->bucket = 0;
+		st->state = TCP_SEQ_STATE_ESTABLISHED;
 		/* Fallthrough */
 	case TCP_SEQ_STATE_ESTABLISHED:
-	case TCP_SEQ_STATE_TIME_WAIT:
-		st->state = TCP_SEQ_STATE_ESTABLISHED;
 		if (st->bucket > tcp_hashinfo.ehash_mask)
 			break;
 		rc = established_get_first(seq);
@@ -2524,7 +2468,6 @@ static void *tcp_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 		}
 		break;
 	case TCP_SEQ_STATE_ESTABLISHED:
-	case TCP_SEQ_STATE_TIME_WAIT:
 		rc = established_get_next(seq, v);
 		break;
 	}
@@ -2548,7 +2491,6 @@ static void tcp_seq_stop(struct seq_file *seq, void *v)
 		if (v != SEQ_START_TOKEN)
 			spin_unlock_bh(&tcp_hashinfo.listening_hash[st->bucket].lock);
 		break;
-	case TCP_SEQ_STATE_TIME_WAIT:
 	case TCP_SEQ_STATE_ESTABLISHED:
 		if (v)
 			spin_unlock_bh(inet_ehash_lockp(&tcp_hashinfo, st->bucket));
@@ -2707,6 +2649,7 @@ static void get_timewait4_sock(const struct inet_timewait_sock *tw,
 static int tcp4_seq_show(struct seq_file *seq, void *v)
 {
 	struct tcp_iter_state *st;
+	struct sock *sk = v;
 	int len;
 
 	if (v == SEQ_START_TOKEN) {
@@ -2721,14 +2664,14 @@ static int tcp4_seq_show(struct seq_file *seq, void *v)
 	switch (st->state) {
 	case TCP_SEQ_STATE_LISTENING:
 	case TCP_SEQ_STATE_ESTABLISHED:
-		get_tcp4_sock(v, seq, st->num, &len);
+		if (sk->sk_state == TCP_TIME_WAIT)
+			get_timewait4_sock(v, seq, st->num, &len);
+		else
+			get_tcp4_sock(v, seq, st->num, &len);
 		break;
 	case TCP_SEQ_STATE_OPENREQ:
 		get_openreq4(st->syn_wait_sk, v, seq, st->num, st->uid, &len);
 		break;
-	case TCP_SEQ_STATE_TIME_WAIT:
-		get_timewait4_sock(v, seq, st->num, &len);
-		break;
 	}
 	seq_printf(seq, "%*s\n", TMPSZ - 1 - len, "");
 out:
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index 066640e0ba8e..46440777e1c5 100644
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c
@@ -89,43 +89,36 @@ begin:
 	sk_nulls_for_each_rcu(sk, node, &head->chain) {
 		if (sk->sk_hash != hash)
 			continue;
-		if (likely(INET6_MATCH(sk, net, saddr, daddr, ports, dif))) {
-			if (unlikely(!atomic_inc_not_zero(&sk->sk_refcnt)))
-				goto begintw;
+		if (sk->sk_state == TCP_TIME_WAIT) {
+			if (!INET6_TW_MATCH(sk, net, saddr, daddr, ports, dif))
+				continue;
+		} else {
+			if (!INET6_MATCH(sk, net, saddr, daddr, ports, dif))
+				continue;
+		}
+		if (unlikely(!atomic_inc_not_zero(&sk->sk_refcnt)))
+			goto out;
+
+		if (sk->sk_state == TCP_TIME_WAIT) {
+			if (unlikely(!INET6_TW_MATCH(sk, net, saddr, daddr,
+						     ports, dif))) {
+				sock_gen_put(sk);
+				goto begin;
+			}
+		} else {
 			if (unlikely(!INET6_MATCH(sk, net, saddr, daddr,
 						  ports, dif))) {
 				sock_put(sk);
 				goto begin;
 			}
-		goto out;
+		goto found;
 		}
 	}
 	if (get_nulls_value(node) != slot)
 		goto begin;
-
-begintw:
-	/* Must check for a TIME_WAIT'er before going to listener hash. */
-	sk_nulls_for_each_rcu(sk, node, &head->twchain) {
-		if (sk->sk_hash != hash)
-			continue;
-		if (likely(INET6_TW_MATCH(sk, net, saddr, daddr,
-					  ports, dif))) {
-			if (unlikely(!atomic_inc_not_zero(&sk->sk_refcnt))) {
-				sk = NULL;
-				goto out;
-			}
-			if (unlikely(!INET6_TW_MATCH(sk, net, saddr, daddr,
-						     ports, dif))) {
-				inet_twsk_put(inet_twsk(sk));
-				goto begintw;
-			}
-			goto out;
-		}
-	}
-	if (get_nulls_value(node) != slot)
-		goto begintw;
-	sk = NULL;
 out:
+	sk = NULL;
+found:
 	rcu_read_unlock();
 	return sk;
 }
@@ -248,31 +241,25 @@ static int __inet6_check_established(struct inet_timewait_death_row *death_row,
 	spinlock_t *lock = inet_ehash_lockp(hinfo, hash);
 	struct sock *sk2;
 	const struct hlist_nulls_node *node;
-	struct inet_timewait_sock *tw;
+	struct inet_timewait_sock *tw = NULL;
 	int twrefcnt = 0;
 
 	spin_lock(lock);
 
-	/* Check TIME-WAIT sockets first. */
-	sk_nulls_for_each(sk2, node, &head->twchain) {
+	sk_nulls_for_each(sk2, node, &head->chain) {
 		if (sk2->sk_hash != hash)
 			continue;
 
-		if (likely(INET6_TW_MATCH(sk2, net, saddr, daddr,
-					  ports, dif))) {
-			tw = inet_twsk(sk2);
-			if (twsk_unique(sk, sk2, twp))
-				goto unique;
-			else
-				goto not_unique;
+		if (sk2->sk_state == TCP_TIME_WAIT) {
+			if (likely(INET6_TW_MATCH(sk2, net, saddr, daddr,
+						  ports, dif))) {
+				tw = inet_twsk(sk2);
+				if (twsk_unique(sk, sk2, twp))
+					goto unique;
+				else
+					goto not_unique;
+			}
 		}
-	}
-	tw = NULL;
-
-	/* And established part... */
-	sk_nulls_for_each(sk2, node, &head->chain) {
-		if (sk2->sk_hash != hash)
-			continue;
 		if (likely(INET6_MATCH(sk2, net, saddr, daddr, ports, dif)))
 			goto not_unique;
 	}
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index dde8bad04481..528e61afaf5e 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1834,6 +1834,7 @@ static void get_timewait6_sock(struct seq_file *seq,
 static int tcp6_seq_show(struct seq_file *seq, void *v)
 {
 	struct tcp_iter_state *st;
+	struct sock *sk = v;
 
 	if (v == SEQ_START_TOKEN) {
 		seq_puts(seq,
@@ -1849,14 +1850,14 @@ static int tcp6_seq_show(struct seq_file *seq, void *v)
 	switch (st->state) {
 	case TCP_SEQ_STATE_LISTENING:
 	case TCP_SEQ_STATE_ESTABLISHED:
-		get_tcp6_sock(seq, v, st->num);
+		if (sk->sk_state == TCP_TIME_WAIT)
+			get_timewait6_sock(seq, v, st->num);
+		else
+			get_tcp6_sock(seq, v, st->num);
 		break;
 	case TCP_SEQ_STATE_OPENREQ:
 		get_openreq6(seq, st->syn_wait_sk, v, st->num, st->uid);
 		break;
-	case TCP_SEQ_STATE_TIME_WAIT:
-		get_timewait6_sock(seq, v, st->num);
-		break;
 	}
 out:
 	return 0;
-- 
cgit 


From a822794886e9746b30b62d11e594865bcc7a0988 Mon Sep 17 00:00:00 2001
From: Luka Perkov <luka@openwrt.org>
Date: Fri, 27 Sep 2013 20:20:33 +0200
Subject: thermal: Kconfig: cosmetic fixes

Fix typo, finish sentence and add missing dots.

Signed-off-by: Luka Perkov <luka@openwrt.org>
CC: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
 drivers/thermal/Kconfig | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
index 57e06a9977cb..3910b09b84e0 100644
--- a/drivers/thermal/Kconfig
+++ b/drivers/thermal/Kconfig
@@ -69,6 +69,7 @@ config THERMAL_GOV_STEP_WISE
 	bool "Step_wise thermal governor"
 	help
 	  Enable this to manage platform thermals using a simple linear
+	  governor.
 
 config THERMAL_GOV_USER_SPACE
 	bool "User_space thermal governor"
@@ -117,14 +118,14 @@ config SPEAR_THERMAL
 	depends on OF
 	help
 	  Enable this to plug the SPEAr thermal sensor driver into the Linux
-	  thermal framework
+	  thermal framework.
 
 config RCAR_THERMAL
 	tristate "Renesas R-Car thermal driver"
 	depends on ARCH_SHMOBILE
 	help
 	  Enable this to plug the R-Car thermal sensor driver into the Linux
-	  thermal framework
+	  thermal framework.
 
 config KIRKWOOD_THERMAL
 	tristate "Temperature sensor on Marvell Kirkwood SoCs"
-- 
cgit 


From c32a5087b70a6706ebee70c4a56849f89c0503f7 Mon Sep 17 00:00:00 2001
From: "durgadoss.r@intel.com" <durgadoss.r@intel.com>
Date: Fri, 4 Oct 2013 21:53:24 +0530
Subject: Thermal: Tidy up error handling in powerclamp_init

This patch
 * adds missing kfree() for cpu_clamping_mask
 * adds return value checking for alloc_percpu()
 * unregister hotcpu notifier in exit path

Signed-off-by: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
 drivers/thermal/intel_powerclamp.c | 24 +++++++++++++++++++++---
 1 file changed, 21 insertions(+), 3 deletions(-)

diff --git a/drivers/thermal/intel_powerclamp.c b/drivers/thermal/intel_powerclamp.c
index b40b37cd25e0..a7cd170b86d2 100644
--- a/drivers/thermal/intel_powerclamp.c
+++ b/drivers/thermal/intel_powerclamp.c
@@ -758,21 +758,39 @@ static int powerclamp_init(void)
 	/* probe cpu features and ids here */
 	retval = powerclamp_probe();
 	if (retval)
-		return retval;
+		goto exit_free;
+
 	/* set default limit, maybe adjusted during runtime based on feedback */
 	window_size = 2;
 	register_hotcpu_notifier(&powerclamp_cpu_notifier);
+
 	powerclamp_thread = alloc_percpu(struct task_struct *);
+	if (!powerclamp_thread) {
+		retval = -ENOMEM;
+		goto exit_unregister;
+	}
+
 	cooling_dev = thermal_cooling_device_register("intel_powerclamp", NULL,
 						&powerclamp_cooling_ops);
-	if (IS_ERR(cooling_dev))
-		return -ENODEV;
+	if (IS_ERR(cooling_dev)) {
+		retval = -ENODEV;
+		goto exit_free_thread;
+	}
 
 	if (!duration)
 		duration = jiffies_to_msecs(DEFAULT_DURATION_JIFFIES);
+
 	powerclamp_create_debug_files();
 
 	return 0;
+
+exit_free_thread:
+	free_percpu(powerclamp_thread);
+exit_unregister:
+	unregister_hotcpu_notifier(&powerclamp_cpu_notifier);
+exit_free:
+	kfree(cpu_clamping_mask);
+	return retval;
 }
 module_init(powerclamp_init);
 
-- 
cgit 


From efe4208f47f907b86f528788da711e8ab9dea44d Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 3 Oct 2013 15:42:29 -0700
Subject: ipv6: make lookups simpler and faster

TCP listener refactoring, part 4 :

To speed up inet lookups, we moved IPv4 addresses from inet to struct
sock_common

Now is time to do the same for IPv6, because it permits us to have fast
lookups for all kind of sockets, including upcoming SYN_RECV.

Getting IPv6 addresses in TCP lookups currently requires two extra cache
lines, plus a dereference (and memory stall).

inet6_sk(sk) does the dereference of inet_sk(__sk)->pinet6

This patch is way bigger than its IPv4 counter part, because for IPv4,
we could add aliases (inet_daddr, inet_rcv_saddr), while on IPv6,
it's not doable easily.

inet6_sk(sk)->daddr becomes sk->sk_v6_daddr
inet6_sk(sk)->rcv_saddr becomes sk->sk_v6_rcv_saddr

And timewait socket also have tw->tw_v6_daddr & tw->tw_v6_rcv_saddr
at the same offset.

We get rid of INET6_TW_MATCH() as INET6_MATCH() is now the generic
macro.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/ipv6.h                           | 46 +++-----------------
 include/net/inet6_hashtables.h                 |  5 +--
 include/net/inet_timewait_sock.h               |  4 +-
 include/net/ip.h                               |  2 +-
 include/net/ip6_checksum.h                     |  2 +-
 include/net/sock.h                             |  9 ++++
 net/dccp/ipv6.c                                | 24 +++++------
 net/dccp/ipv6.h                                |  1 -
 net/dccp/minisocks.c                           |  7 +---
 net/ipv4/inet_diag.c                           | 35 +++++++---------
 net/ipv4/ping.c                                | 15 ++++---
 net/ipv4/tcp_metrics.c                         | 10 ++---
 net/ipv4/tcp_minisocks.c                       |  7 +---
 net/ipv4/tcp_probe.c                           | 29 +++++--------
 net/ipv4/tcp_timer.c                           |  3 +-
 net/ipv6/af_inet6.c                            | 10 ++---
 net/ipv6/datagram.c                            | 25 ++++++-----
 net/ipv6/inet6_connection_sock.c               |  7 ++--
 net/ipv6/inet6_hashtables.c                    | 58 +++++++++-----------------
 net/ipv6/ipv6_sockglue.c                       |  7 ++--
 net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c |  4 +-
 net/ipv6/ping.c                                |  2 +-
 net/ipv6/raw.c                                 | 17 ++++----
 net/ipv6/tcp_ipv6.c                            | 44 ++++++++++---------
 net/ipv6/udp.c                                 | 48 ++++++++++-----------
 net/l2tp/l2tp_core.c                           | 10 ++---
 net/l2tp/l2tp_debugfs.c                        |  5 ++-
 net/l2tp/l2tp_ip6.c                            | 16 +++----
 net/l2tp/l2tp_netlink.c                        |  4 +-
 net/l2tp/l2tp_ppp.c                            | 12 +++---
 net/netfilter/xt_TPROXY.c                      |  2 +-
 net/netfilter/xt_socket.c                      |  2 +-
 net/sctp/ipv6.c                                | 22 +++++-----
 net/sunrpc/svcsock.c                           |  2 +-
 security/lsm_audit.c                           |  5 +--
 35 files changed, 213 insertions(+), 288 deletions(-)

diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index b7f1f3bb346d..35f6c1b562c4 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -141,8 +141,6 @@ struct ipv6_fl_socklist;
  */
 struct ipv6_pinfo {
 	struct in6_addr 	saddr;
-	struct in6_addr 	rcv_saddr;
-	struct in6_addr		daddr;
 	struct in6_pktinfo	sticky_pktinfo;
 	const struct in6_addr		*daddr_cache;
 #ifdef CONFIG_IPV6_SUBTREES
@@ -256,22 +254,10 @@ struct tcp6_sock {
 
 extern int inet6_sk_rebuild_header(struct sock *sk);
 
-struct inet6_timewait_sock {
-	struct in6_addr tw_v6_daddr;
-	struct in6_addr	tw_v6_rcv_saddr;
-};
-
 struct tcp6_timewait_sock {
 	struct tcp_timewait_sock   tcp6tw_tcp;
-	struct inet6_timewait_sock tcp6tw_inet6;
 };
 
-static inline struct inet6_timewait_sock *inet6_twsk(const struct sock *sk)
-{
-	return (struct inet6_timewait_sock *)(((u8 *)sk) +
-					      inet_twsk(sk)->tw_ipv6_offset);
-}
-
 #if IS_ENABLED(CONFIG_IPV6)
 static inline struct ipv6_pinfo * inet6_sk(const struct sock *__sk)
 {
@@ -321,21 +307,11 @@ static inline void inet_sk_copy_descendant(struct sock *sk_to,
 #define __ipv6_only_sock(sk)	(inet6_sk(sk)->ipv6only)
 #define ipv6_only_sock(sk)	((sk)->sk_family == PF_INET6 && __ipv6_only_sock(sk))
 
-static inline u16 inet6_tw_offset(const struct proto *prot)
-{
-	return prot->twsk_prot->twsk_obj_size -
-			sizeof(struct inet6_timewait_sock);
-}
-
-static inline struct in6_addr *__inet6_rcv_saddr(const struct sock *sk)
+static inline const struct in6_addr *inet6_rcv_saddr(const struct sock *sk)
 {
-	return likely(sk->sk_state != TCP_TIME_WAIT) ?
-		&inet6_sk(sk)->rcv_saddr : &inet6_twsk(sk)->tw_v6_rcv_saddr;
-}
-
-static inline struct in6_addr *inet6_rcv_saddr(const struct sock *sk)
-{
-	return sk->sk_family == AF_INET6 ? __inet6_rcv_saddr(sk) : NULL;
+	if (sk->sk_family == AF_INET6)
+		return &sk->sk_v6_rcv_saddr;
+	return NULL;
 }
 
 static inline int inet_v6_ipv6only(const struct sock *sk)
@@ -363,7 +339,6 @@ static inline struct raw6_sock *raw6_sk(const struct sock *sk)
 	return NULL;
 }
 
-#define __inet6_rcv_saddr(__sk)	NULL
 #define inet6_rcv_saddr(__sk)	NULL
 #define tcp_twsk_ipv6only(__sk)		0
 #define inet_v6_ipv6only(__sk)		0
@@ -372,19 +347,10 @@ static inline struct raw6_sock *raw6_sk(const struct sock *sk)
 #define INET6_MATCH(__sk, __net, __saddr, __daddr, __ports, __dif)	\
 	(((__sk)->sk_portpair == (__ports))			&&	\
 	 ((__sk)->sk_family == AF_INET6)			&&	\
-	 ipv6_addr_equal(&inet6_sk(__sk)->daddr, (__saddr))	&&	\
-	 ipv6_addr_equal(&inet6_sk(__sk)->rcv_saddr, (__daddr))	&&	\
+	 ipv6_addr_equal(&(__sk)->sk_v6_daddr, (__saddr))		&&	\
+	 ipv6_addr_equal(&(__sk)->sk_v6_rcv_saddr, (__daddr))	&&	\
 	 (!(__sk)->sk_bound_dev_if	||				\
 	   ((__sk)->sk_bound_dev_if == (__dif))) 		&&	\
 	 net_eq(sock_net(__sk), (__net)))
 
-#define INET6_TW_MATCH(__sk, __net, __saddr, __daddr, __ports, __dif)	   \
-	(((__sk)->sk_portpair == (__ports))				&& \
-	 ((__sk)->sk_family == AF_INET6)				&& \
-	 ipv6_addr_equal(&inet6_twsk(__sk)->tw_v6_daddr, (__saddr))	&& \
-	 ipv6_addr_equal(&inet6_twsk(__sk)->tw_v6_rcv_saddr, (__daddr)) && \
-	 (!(__sk)->sk_bound_dev_if	||				   \
-	  ((__sk)->sk_bound_dev_if == (__dif)))				&& \
-	 net_eq(sock_net(__sk), (__net)))
-
 #endif /* _IPV6_H */
diff --git a/include/net/inet6_hashtables.h b/include/net/inet6_hashtables.h
index f52fa88feb64..a105d1a2fc00 100644
--- a/include/net/inet6_hashtables.h
+++ b/include/net/inet6_hashtables.h
@@ -43,9 +43,8 @@ static inline unsigned int inet6_ehashfn(struct net *net,
 static inline int inet6_sk_ehashfn(const struct sock *sk)
 {
 	const struct inet_sock *inet = inet_sk(sk);
-	const struct ipv6_pinfo *np = inet6_sk(sk);
-	const struct in6_addr *laddr = &np->rcv_saddr;
-	const struct in6_addr *faddr = &np->daddr;
+	const struct in6_addr *laddr = &sk->sk_v6_rcv_saddr;
+	const struct in6_addr *faddr = &sk->sk_v6_daddr;
 	const __u16 lport = inet->inet_num;
 	const __be16 fport = inet->inet_dport;
 	struct net *net = sock_net(sk);
diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h
index de9e3ab7d43d..b647c6270eb7 100644
--- a/include/net/inet_timewait_sock.h
+++ b/include/net/inet_timewait_sock.h
@@ -116,7 +116,9 @@ struct inet_timewait_sock {
 #define tw_prot			__tw_common.skc_prot
 #define tw_net			__tw_common.skc_net
 #define tw_daddr        	__tw_common.skc_daddr
+#define tw_v6_daddr		__tw_common.skc_v6_daddr
 #define tw_rcv_saddr    	__tw_common.skc_rcv_saddr
+#define tw_v6_rcv_saddr    	__tw_common.skc_v6_rcv_saddr
 #define tw_dport		__tw_common.skc_dport
 #define tw_num			__tw_common.skc_num
 
@@ -133,7 +135,7 @@ struct inet_timewait_sock {
 				tw_transparent  : 1,
 				tw_pad		: 6,	/* 6 bits hole */
 				tw_tos		: 8,
-				tw_ipv6_offset  : 16;
+				tw_pad2		: 16 /* 16 bits hole */
 	kmemcheck_bitfield_end(flags);
 	u32			tw_ttd;
 	struct inet_bind_bucket	*tw_tb;
diff --git a/include/net/ip.h b/include/net/ip.h
index b39ebe5339ac..217bc5bfc6c6 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -374,7 +374,7 @@ static __inline__ void inet_reset_saddr(struct sock *sk)
 		struct ipv6_pinfo *np = inet6_sk(sk);
 
 		memset(&np->saddr, 0, sizeof(np->saddr));
-		memset(&np->rcv_saddr, 0, sizeof(np->rcv_saddr));
+		memset(&sk->sk_v6_rcv_saddr, 0, sizeof(sk->sk_v6_rcv_saddr));
 	}
 #endif
 }
diff --git a/include/net/ip6_checksum.h b/include/net/ip6_checksum.h
index 7686e3f5033d..1944406949ba 100644
--- a/include/net/ip6_checksum.h
+++ b/include/net/ip6_checksum.h
@@ -70,7 +70,7 @@ static inline void tcp_v6_send_check(struct sock *sk, struct sk_buff *skb)
 {
 	struct ipv6_pinfo *np = inet6_sk(sk);
 
-	__tcp_v6_send_check(skb, &np->saddr, &np->daddr);
+	__tcp_v6_send_check(skb, &np->saddr, &sk->sk_v6_daddr);
 }
 
 int udp6_csum_init(struct sk_buff *skb, struct udphdr *uh, int proto);
diff --git a/include/net/sock.h b/include/net/sock.h
index 3f3e48c4704d..7e50df5c71d4 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -191,6 +191,12 @@ struct sock_common {
 #ifdef CONFIG_NET_NS
 	struct net	 	*skc_net;
 #endif
+
+#if IS_ENABLED(CONFIG_IPV6)
+	struct in6_addr		skc_v6_daddr;
+	struct in6_addr		skc_v6_rcv_saddr;
+#endif
+
 	/*
 	 * fields between dontcopy_begin/dontcopy_end
 	 * are not copied in sock_copy()
@@ -314,6 +320,9 @@ struct sock {
 #define sk_bind_node		__sk_common.skc_bind_node
 #define sk_prot			__sk_common.skc_prot
 #define sk_net			__sk_common.skc_net
+#define sk_v6_daddr		__sk_common.skc_v6_daddr
+#define sk_v6_rcv_saddr	__sk_common.skc_v6_rcv_saddr
+
 	socket_lock_t		sk_lock;
 	struct sk_buff_head	sk_receive_queue;
 	/*
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 6cf9f7782ad4..7f075b83128a 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -67,7 +67,7 @@ static inline void dccp_v6_send_check(struct sock *sk, struct sk_buff *skb)
 	struct dccp_hdr *dh = dccp_hdr(skb);
 
 	dccp_csum_outgoing(skb);
-	dh->dccph_checksum = dccp_v6_csum_finish(skb, &np->saddr, &np->daddr);
+	dh->dccph_checksum = dccp_v6_csum_finish(skb, &np->saddr, &sk->sk_v6_daddr);
 }
 
 static inline __u64 dccp_v6_init_sequence(struct sk_buff *skb)
@@ -467,11 +467,11 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
 
 		memcpy(newnp, np, sizeof(struct ipv6_pinfo));
 
-		ipv6_addr_set_v4mapped(newinet->inet_daddr, &newnp->daddr);
+		ipv6_addr_set_v4mapped(newinet->inet_daddr, &newsk->sk_v6_daddr);
 
 		ipv6_addr_set_v4mapped(newinet->inet_saddr, &newnp->saddr);
 
-		newnp->rcv_saddr = newnp->saddr;
+		newsk->sk_v6_rcv_saddr = newnp->saddr;
 
 		inet_csk(newsk)->icsk_af_ops = &dccp_ipv6_mapped;
 		newsk->sk_backlog_rcv = dccp_v4_do_rcv;
@@ -538,9 +538,9 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
 
 	memcpy(newnp, np, sizeof(struct ipv6_pinfo));
 
-	newnp->daddr = ireq6->rmt_addr;
+	newsk->sk_v6_daddr = ireq6->rmt_addr;
 	newnp->saddr = ireq6->loc_addr;
-	newnp->rcv_saddr = ireq6->loc_addr;
+	newsk->sk_v6_rcv_saddr = ireq6->loc_addr;
 	newsk->sk_bound_dev_if = ireq6->iif;
 
 	/* Now IPv6 options...
@@ -885,7 +885,7 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
 			return -EINVAL;
 	}
 
-	np->daddr = usin->sin6_addr;
+	sk->sk_v6_daddr = usin->sin6_addr;
 	np->flow_label = fl6.flowlabel;
 
 	/*
@@ -915,16 +915,16 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
 			goto failure;
 		}
 		ipv6_addr_set_v4mapped(inet->inet_saddr, &np->saddr);
-		ipv6_addr_set_v4mapped(inet->inet_rcv_saddr, &np->rcv_saddr);
+		ipv6_addr_set_v4mapped(inet->inet_rcv_saddr, &sk->sk_v6_rcv_saddr);
 
 		return err;
 	}
 
-	if (!ipv6_addr_any(&np->rcv_saddr))
-		saddr = &np->rcv_saddr;
+	if (!ipv6_addr_any(&sk->sk_v6_rcv_saddr))
+		saddr = &sk->sk_v6_rcv_saddr;
 
 	fl6.flowi6_proto = IPPROTO_DCCP;
-	fl6.daddr = np->daddr;
+	fl6.daddr = sk->sk_v6_daddr;
 	fl6.saddr = saddr ? *saddr : np->saddr;
 	fl6.flowi6_oif = sk->sk_bound_dev_if;
 	fl6.fl6_dport = usin->sin6_port;
@@ -941,7 +941,7 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
 
 	if (saddr == NULL) {
 		saddr = &fl6.saddr;
-		np->rcv_saddr = *saddr;
+		sk->sk_v6_rcv_saddr = *saddr;
 	}
 
 	/* set the source address */
@@ -963,7 +963,7 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
 		goto late_failure;
 
 	dp->dccps_iss = secure_dccpv6_sequence_number(np->saddr.s6_addr32,
-						      np->daddr.s6_addr32,
+						      sk->sk_v6_daddr.s6_addr32,
 						      inet->inet_sport,
 						      inet->inet_dport);
 	err = dccp_connect(sk);
diff --git a/net/dccp/ipv6.h b/net/dccp/ipv6.h
index 6eef81fdbe56..6604fc3fe953 100644
--- a/net/dccp/ipv6.h
+++ b/net/dccp/ipv6.h
@@ -30,7 +30,6 @@ struct dccp6_request_sock {
 
 struct dccp6_timewait_sock {
 	struct inet_timewait_sock   inet;
-	struct inet6_timewait_sock  tw6;
 };
 
 #endif /* _DCCP_IPV6_H */
diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c
index 662071b249cc..32e80d96d4c0 100644
--- a/net/dccp/minisocks.c
+++ b/net/dccp/minisocks.c
@@ -56,12 +56,9 @@ void dccp_time_wait(struct sock *sk, int state, int timeo)
 #if IS_ENABLED(CONFIG_IPV6)
 		if (tw->tw_family == PF_INET6) {
 			const struct ipv6_pinfo *np = inet6_sk(sk);
-			struct inet6_timewait_sock *tw6;
 
-			tw->tw_ipv6_offset = inet6_tw_offset(sk->sk_prot);
-			tw6 = inet6_twsk((struct sock *)tw);
-			tw6->tw_v6_daddr = np->daddr;
-			tw6->tw_v6_rcv_saddr = np->rcv_saddr;
+			tw->tw_v6_daddr = sk->sk_v6_daddr;
+			tw->tw_v6_rcv_saddr = sk->sk_v6_rcv_saddr;
 			tw->tw_ipv6only = np->ipv6only;
 		}
 #endif
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index 8e1e40653357..ecc179d676e4 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -121,13 +121,13 @@ int inet_sk_diag_fill(struct sock *sk, struct inet_connection_sock *icsk,
 
 #if IS_ENABLED(CONFIG_IPV6)
 	if (r->idiag_family == AF_INET6) {
-		const struct ipv6_pinfo *np = inet6_sk(sk);
 
-		*(struct in6_addr *)r->id.idiag_src = np->rcv_saddr;
-		*(struct in6_addr *)r->id.idiag_dst = np->daddr;
+		*(struct in6_addr *)r->id.idiag_src = sk->sk_v6_rcv_saddr;
+		*(struct in6_addr *)r->id.idiag_dst = sk->sk_v6_daddr;
 
 		if (ext & (1 << (INET_DIAG_TCLASS - 1)))
-			if (nla_put_u8(skb, INET_DIAG_TCLASS, np->tclass) < 0)
+			if (nla_put_u8(skb, INET_DIAG_TCLASS,
+				       inet6_sk(sk)->tclass) < 0)
 				goto errout;
 	}
 #endif
@@ -255,11 +255,8 @@ static int inet_twsk_diag_fill(struct inet_timewait_sock *tw,
 	r->idiag_inode	      = 0;
 #if IS_ENABLED(CONFIG_IPV6)
 	if (tw->tw_family == AF_INET6) {
-		const struct inet6_timewait_sock *tw6 =
-						inet6_twsk((struct sock *)tw);
-
-		*(struct in6_addr *)r->id.idiag_src = tw6->tw_v6_rcv_saddr;
-		*(struct in6_addr *)r->id.idiag_dst = tw6->tw_v6_daddr;
+		*(struct in6_addr *)r->id.idiag_src = tw->tw_v6_rcv_saddr;
+		*(struct in6_addr *)r->id.idiag_dst = tw->tw_v6_daddr;
 	}
 #endif
 
@@ -273,10 +270,11 @@ static int sk_diag_fill(struct sock *sk, struct sk_buff *skb,
 			const struct nlmsghdr *unlh)
 {
 	if (sk->sk_state == TCP_TIME_WAIT)
-		return inet_twsk_diag_fill((struct inet_timewait_sock *)sk,
-					   skb, r, portid, seq, nlmsg_flags,
-					   unlh);
-	return inet_csk_diag_fill(sk, skb, r, user_ns, portid, seq, nlmsg_flags, unlh);
+		return inet_twsk_diag_fill(inet_twsk(sk), skb, r, portid, seq,
+					   nlmsg_flags, unlh);
+
+	return inet_csk_diag_fill(sk, skb, r, user_ns, portid, seq,
+				  nlmsg_flags, unlh);
 }
 
 int inet_diag_dump_one_icsk(struct inet_hashinfo *hashinfo, struct sk_buff *in_skb,
@@ -489,10 +487,9 @@ int inet_diag_bc_sk(const struct nlattr *bc, struct sock *sk)
 	entry.family = sk->sk_family;
 #if IS_ENABLED(CONFIG_IPV6)
 	if (entry.family == AF_INET6) {
-		struct ipv6_pinfo *np = inet6_sk(sk);
 
-		entry.saddr = np->rcv_saddr.s6_addr32;
-		entry.daddr = np->daddr.s6_addr32;
+		entry.saddr = sk->sk_v6_rcv_saddr.s6_addr32;
+		entry.daddr = sk->sk_v6_daddr.s6_addr32;
 	} else
 #endif
 	{
@@ -649,10 +646,8 @@ static int inet_twsk_diag_dump(struct sock *sk,
 		entry.family = tw->tw_family;
 #if IS_ENABLED(CONFIG_IPV6)
 		if (tw->tw_family == AF_INET6) {
-			struct inet6_timewait_sock *tw6 =
-						inet6_twsk((struct sock *)tw);
-			entry.saddr = tw6->tw_v6_rcv_saddr.s6_addr32;
-			entry.daddr = tw6->tw_v6_daddr.s6_addr32;
+			entry.saddr = tw->tw_v6_rcv_saddr.s6_addr32;
+			entry.daddr = tw->tw_v6_daddr.s6_addr32;
 		} else
 #endif
 		{
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index a62610443152..ccefc07beacd 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -202,15 +202,14 @@ static struct sock *ping_lookup(struct net *net, struct sk_buff *skb, u16 ident)
 #if IS_ENABLED(CONFIG_IPV6)
 		} else if (skb->protocol == htons(ETH_P_IPV6) &&
 			   sk->sk_family == AF_INET6) {
-			struct ipv6_pinfo *np = inet6_sk(sk);
 
 			pr_debug("found: %p: num=%d, daddr=%pI6c, dif=%d\n", sk,
 				 (int) isk->inet_num,
-				 &inet6_sk(sk)->rcv_saddr,
+				 &sk->sk_v6_rcv_saddr,
 				 sk->sk_bound_dev_if);
 
-			if (!ipv6_addr_any(&np->rcv_saddr) &&
-			    !ipv6_addr_equal(&np->rcv_saddr,
+			if (!ipv6_addr_any(&sk->sk_v6_rcv_saddr) &&
+			    !ipv6_addr_equal(&sk->sk_v6_rcv_saddr,
 					     &ipv6_hdr(skb)->daddr))
 				continue;
 #endif
@@ -362,7 +361,7 @@ static void ping_set_saddr(struct sock *sk, struct sockaddr *saddr)
 	} else if (saddr->sa_family == AF_INET6) {
 		struct sockaddr_in6 *addr = (struct sockaddr_in6 *) saddr;
 		struct ipv6_pinfo *np = inet6_sk(sk);
-		np->rcv_saddr = np->saddr = addr->sin6_addr;
+		sk->sk_v6_rcv_saddr = np->saddr = addr->sin6_addr;
 #endif
 	}
 }
@@ -376,7 +375,7 @@ static void ping_clear_saddr(struct sock *sk, int dif)
 #if IS_ENABLED(CONFIG_IPV6)
 	} else if (sk->sk_family == AF_INET6) {
 		struct ipv6_pinfo *np = inet6_sk(sk);
-		memset(&np->rcv_saddr, 0, sizeof(np->rcv_saddr));
+		memset(&sk->sk_v6_rcv_saddr, 0, sizeof(sk->sk_v6_rcv_saddr));
 		memset(&np->saddr, 0, sizeof(np->saddr));
 #endif
 	}
@@ -418,7 +417,7 @@ int ping_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 	err = 0;
 	if ((sk->sk_family == AF_INET && isk->inet_rcv_saddr) ||
 	    (sk->sk_family == AF_INET6 &&
-	     !ipv6_addr_any(&inet6_sk(sk)->rcv_saddr)))
+	     !ipv6_addr_any(&sk->sk_v6_rcv_saddr)))
 		sk->sk_userlocks |= SOCK_BINDADDR_LOCK;
 
 	if (snum)
@@ -429,7 +428,7 @@ int ping_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 
 #if IS_ENABLED(CONFIG_IPV6)
 	if (sk->sk_family == AF_INET6)
-		memset(&inet6_sk(sk)->daddr, 0, sizeof(inet6_sk(sk)->daddr));
+		memset(&sk->sk_v6_daddr, 0, sizeof(sk->sk_v6_daddr));
 #endif
 
 	sk_dst_reset(sk);
diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c
index 52f3c6b971d2..27535fd5ea10 100644
--- a/net/ipv4/tcp_metrics.c
+++ b/net/ipv4/tcp_metrics.c
@@ -240,7 +240,6 @@ static struct tcp_metrics_block *__tcp_get_metrics_req(struct request_sock *req,
 
 static struct tcp_metrics_block *__tcp_get_metrics_tw(struct inet_timewait_sock *tw)
 {
-	struct inet6_timewait_sock *tw6;
 	struct tcp_metrics_block *tm;
 	struct inetpeer_addr addr;
 	unsigned int hash;
@@ -253,9 +252,8 @@ static struct tcp_metrics_block *__tcp_get_metrics_tw(struct inet_timewait_sock
 		hash = (__force unsigned int) addr.addr.a4;
 		break;
 	case AF_INET6:
-		tw6 = inet6_twsk((struct sock *)tw);
-		*(struct in6_addr *)addr.addr.a6 = tw6->tw_v6_daddr;
-		hash = ipv6_addr_hash(&tw6->tw_v6_daddr);
+		*(struct in6_addr *)addr.addr.a6 = tw->tw_v6_daddr;
+		hash = ipv6_addr_hash(&tw->tw_v6_daddr);
 		break;
 	default:
 		return NULL;
@@ -289,8 +287,8 @@ static struct tcp_metrics_block *tcp_get_metrics(struct sock *sk,
 		hash = (__force unsigned int) addr.addr.a4;
 		break;
 	case AF_INET6:
-		*(struct in6_addr *)addr.addr.a6 = inet6_sk(sk)->daddr;
-		hash = ipv6_addr_hash(&inet6_sk(sk)->daddr);
+		*(struct in6_addr *)addr.addr.a6 = sk->sk_v6_daddr;
+		hash = ipv6_addr_hash(&sk->sk_v6_daddr);
 		break;
 	default:
 		return NULL;
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 58a3e69aef64..97b684159861 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -293,12 +293,9 @@ void tcp_time_wait(struct sock *sk, int state, int timeo)
 #if IS_ENABLED(CONFIG_IPV6)
 		if (tw->tw_family == PF_INET6) {
 			struct ipv6_pinfo *np = inet6_sk(sk);
-			struct inet6_timewait_sock *tw6;
 
-			tw->tw_ipv6_offset = inet6_tw_offset(sk->sk_prot);
-			tw6 = inet6_twsk((struct sock *)tw);
-			tw6->tw_v6_daddr = np->daddr;
-			tw6->tw_v6_rcv_saddr = np->rcv_saddr;
+			tw->tw_v6_daddr = sk->sk_v6_daddr;
+			tw->tw_v6_rcv_saddr = sk->sk_v6_rcv_saddr;
 			tw->tw_tclass = np->tclass;
 			tw->tw_ipv6only = np->ipv6only;
 		}
diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c
index 611beab38a00..8b97d71e193b 100644
--- a/net/ipv4/tcp_probe.c
+++ b/net/ipv4/tcp_probe.c
@@ -101,22 +101,6 @@ static inline int tcp_probe_avail(void)
 		si4.sin_addr.s_addr = inet->inet_##mem##addr;	\
 	} while (0)						\
 
-#if IS_ENABLED(CONFIG_IPV6)
-#define tcp_probe_copy_fl_to_si6(inet, si6, mem)		\
-	do {							\
-		struct ipv6_pinfo *pi6 = inet->pinet6;		\
-		si6.sin6_family = AF_INET6;			\
-		si6.sin6_port = inet->inet_##mem##port;		\
-		si6.sin6_addr = pi6->mem##addr;			\
-		si6.sin6_flowinfo = 0; /* No need here. */	\
-		si6.sin6_scope_id = 0;	/* No need here. */	\
-	} while (0)
-#else
-#define tcp_probe_copy_fl_to_si6(fl, si6, mem)			\
-	do {							\
-		memset(&si6, 0, sizeof(si6));			\
-	} while (0)
-#endif
 
 /*
  * Hook inserted to be called before each receive packet.
@@ -147,8 +131,17 @@ static void jtcp_rcv_established(struct sock *sk, struct sk_buff *skb,
 				tcp_probe_copy_fl_to_si4(inet, p->dst.v4, d);
 				break;
 			case AF_INET6:
-				tcp_probe_copy_fl_to_si6(inet, p->src.v6, s);
-				tcp_probe_copy_fl_to_si6(inet, p->dst.v6, d);
+				memset(&p->src.v6, 0, sizeof(p->src.v6));
+				memset(&p->dst.v6, 0, sizeof(p->dst.v6));
+#if IS_ENABLED(CONFIG_IPV6)
+				p->src.v6.sin6_family = AF_INET6;
+				p->src.v6.sin6_port = inet->inet_sport;
+				p->src.v6.sin6_addr = inet6_sk(sk)->saddr;
+
+				p->dst.v6.sin6_family = AF_INET6;
+				p->dst.v6.sin6_port = inet->inet_dport;
+				p->dst.v6.sin6_addr = sk->sk_v6_daddr;
+#endif
 				break;
 			default:
 				BUG();
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 4b85e6f636c9..af07b5b23ebf 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -374,9 +374,8 @@ void tcp_retransmit_timer(struct sock *sk)
 		}
 #if IS_ENABLED(CONFIG_IPV6)
 		else if (sk->sk_family == AF_INET6) {
-			struct ipv6_pinfo *np = inet6_sk(sk);
 			LIMIT_NETDEBUG(KERN_DEBUG pr_fmt("Peer %pI6:%u/%u unexpectedly shrunk window %u:%u (repaired)\n"),
-				       &np->daddr,
+				       &sk->sk_v6_daddr,
 				       ntohs(inet->inet_dport), inet->inet_num,
 				       tp->snd_una, tp->snd_nxt);
 		}
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 4966b124dc2e..a2cb07cd3850 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -364,7 +364,7 @@ int inet6_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 	inet->inet_rcv_saddr = v4addr;
 	inet->inet_saddr = v4addr;
 
-	np->rcv_saddr = addr->sin6_addr;
+	sk->sk_v6_rcv_saddr = addr->sin6_addr;
 
 	if (!(addr_type & IPV6_ADDR_MULTICAST))
 		np->saddr = addr->sin6_addr;
@@ -461,14 +461,14 @@ int inet6_getname(struct socket *sock, struct sockaddr *uaddr,
 		    peer == 1)
 			return -ENOTCONN;
 		sin->sin6_port = inet->inet_dport;
-		sin->sin6_addr = np->daddr;
+		sin->sin6_addr = sk->sk_v6_daddr;
 		if (np->sndflow)
 			sin->sin6_flowinfo = np->flow_label;
 	} else {
-		if (ipv6_addr_any(&np->rcv_saddr))
+		if (ipv6_addr_any(&sk->sk_v6_rcv_saddr))
 			sin->sin6_addr = np->saddr;
 		else
-			sin->sin6_addr = np->rcv_saddr;
+			sin->sin6_addr = sk->sk_v6_rcv_saddr;
 
 		sin->sin6_port = inet->inet_sport;
 	}
@@ -655,7 +655,7 @@ int inet6_sk_rebuild_header(struct sock *sk)
 
 		memset(&fl6, 0, sizeof(fl6));
 		fl6.flowi6_proto = sk->sk_protocol;
-		fl6.daddr = np->daddr;
+		fl6.daddr = sk->sk_v6_daddr;
 		fl6.saddr = np->saddr;
 		fl6.flowlabel = np->flow_label;
 		fl6.flowi6_oif = sk->sk_bound_dev_if;
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index 48b6bd2a9a14..a454b0ff57c7 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -107,16 +107,16 @@ ipv4_connected:
 		if (err)
 			goto out;
 
-		ipv6_addr_set_v4mapped(inet->inet_daddr, &np->daddr);
+		ipv6_addr_set_v4mapped(inet->inet_daddr, &sk->sk_v6_daddr);
 
 		if (ipv6_addr_any(&np->saddr) ||
 		    ipv6_mapped_addr_any(&np->saddr))
 			ipv6_addr_set_v4mapped(inet->inet_saddr, &np->saddr);
 
-		if (ipv6_addr_any(&np->rcv_saddr) ||
-		    ipv6_mapped_addr_any(&np->rcv_saddr)) {
+		if (ipv6_addr_any(&sk->sk_v6_rcv_saddr) ||
+		    ipv6_mapped_addr_any(&sk->sk_v6_rcv_saddr)) {
 			ipv6_addr_set_v4mapped(inet->inet_rcv_saddr,
-					       &np->rcv_saddr);
+					       &sk->sk_v6_rcv_saddr);
 			if (sk->sk_prot->rehash)
 				sk->sk_prot->rehash(sk);
 		}
@@ -145,7 +145,7 @@ ipv4_connected:
 		}
 	}
 
-	np->daddr = *daddr;
+	sk->sk_v6_daddr = *daddr;
 	np->flow_label = fl6.flowlabel;
 
 	inet->inet_dport = usin->sin6_port;
@@ -156,7 +156,7 @@ ipv4_connected:
 	 */
 
 	fl6.flowi6_proto = sk->sk_protocol;
-	fl6.daddr = np->daddr;
+	fl6.daddr = sk->sk_v6_daddr;
 	fl6.saddr = np->saddr;
 	fl6.flowi6_oif = sk->sk_bound_dev_if;
 	fl6.flowi6_mark = sk->sk_mark;
@@ -183,16 +183,16 @@ ipv4_connected:
 	if (ipv6_addr_any(&np->saddr))
 		np->saddr = fl6.saddr;
 
-	if (ipv6_addr_any(&np->rcv_saddr)) {
-		np->rcv_saddr = fl6.saddr;
+	if (ipv6_addr_any(&sk->sk_v6_rcv_saddr)) {
+		sk->sk_v6_rcv_saddr = fl6.saddr;
 		inet->inet_rcv_saddr = LOOPBACK4_IPV6;
 		if (sk->sk_prot->rehash)
 			sk->sk_prot->rehash(sk);
 	}
 
 	ip6_dst_store(sk, dst,
-		      ipv6_addr_equal(&fl6.daddr, &np->daddr) ?
-		      &np->daddr : NULL,
+		      ipv6_addr_equal(&fl6.daddr, &sk->sk_v6_daddr) ?
+		      &sk->sk_v6_daddr : NULL,
 #ifdef CONFIG_IPV6_SUBTREES
 		      ipv6_addr_equal(&fl6.saddr, &np->saddr) ?
 		      &np->saddr :
@@ -883,11 +883,10 @@ EXPORT_SYMBOL_GPL(ip6_datagram_send_ctl);
 void ip6_dgram_sock_seq_show(struct seq_file *seq, struct sock *sp,
 			     __u16 srcp, __u16 destp, int bucket)
 {
-	struct ipv6_pinfo *np = inet6_sk(sp);
 	const struct in6_addr *dest, *src;
 
-	dest  = &np->daddr;
-	src   = &np->rcv_saddr;
+	dest  = &sp->sk_v6_daddr;
+	src   = &sp->sk_v6_rcv_saddr;
 	seq_printf(seq,
 		   "%5d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X "
 		   "%02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %d\n",
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index e4311cbc8b4e..b7400b480e74 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -165,11 +165,10 @@ EXPORT_SYMBOL_GPL(inet6_csk_reqsk_queue_hash_add);
 
 void inet6_csk_addr2sockaddr(struct sock *sk, struct sockaddr * uaddr)
 {
-	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *) uaddr;
 
 	sin6->sin6_family = AF_INET6;
-	sin6->sin6_addr = np->daddr;
+	sin6->sin6_addr = sk->sk_v6_daddr;
 	sin6->sin6_port	= inet_sk(sk)->inet_dport;
 	/* We do not store received flowlabel for TCP */
 	sin6->sin6_flowinfo = 0;
@@ -203,7 +202,7 @@ static struct dst_entry *inet6_csk_route_socket(struct sock *sk,
 
 	memset(fl6, 0, sizeof(*fl6));
 	fl6->flowi6_proto = sk->sk_protocol;
-	fl6->daddr = np->daddr;
+	fl6->daddr = sk->sk_v6_daddr;
 	fl6->saddr = np->saddr;
 	fl6->flowlabel = np->flow_label;
 	IP6_ECN_flow_xmit(sk, fl6->flowlabel);
@@ -245,7 +244,7 @@ int inet6_csk_xmit(struct sk_buff *skb, struct flowi *fl_unused)
 	skb_dst_set_noref(skb, dst);
 
 	/* Restore final destination back after routing done */
-	fl6.daddr = np->daddr;
+	fl6.daddr = sk->sk_v6_daddr;
 
 	res = ip6_xmit(sk, skb, &fl6, np->opt, np->tclass);
 	rcu_read_unlock();
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index 46440777e1c5..842d833dfc18 100644
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c
@@ -89,30 +89,16 @@ begin:
 	sk_nulls_for_each_rcu(sk, node, &head->chain) {
 		if (sk->sk_hash != hash)
 			continue;
-		if (sk->sk_state == TCP_TIME_WAIT) {
-			if (!INET6_TW_MATCH(sk, net, saddr, daddr, ports, dif))
-				continue;
-		} else {
-			if (!INET6_MATCH(sk, net, saddr, daddr, ports, dif))
-				continue;
-		}
+		if (!INET6_MATCH(sk, net, saddr, daddr, ports, dif))
+			continue;
 		if (unlikely(!atomic_inc_not_zero(&sk->sk_refcnt)))
 			goto out;
 
-		if (sk->sk_state == TCP_TIME_WAIT) {
-			if (unlikely(!INET6_TW_MATCH(sk, net, saddr, daddr,
-						     ports, dif))) {
-				sock_gen_put(sk);
-				goto begin;
-			}
-		} else {
-			if (unlikely(!INET6_MATCH(sk, net, saddr, daddr,
-						  ports, dif))) {
-				sock_put(sk);
-				goto begin;
-			}
-		goto found;
+		if (unlikely(!INET6_MATCH(sk, net, saddr, daddr, ports, dif))) {
+			sock_gen_put(sk);
+			goto begin;
 		}
+		goto found;
 	}
 	if (get_nulls_value(node) != slot)
 		goto begin;
@@ -133,11 +119,10 @@ static inline int compute_score(struct sock *sk, struct net *net,
 
 	if (net_eq(sock_net(sk), net) && inet_sk(sk)->inet_num == hnum &&
 	    sk->sk_family == PF_INET6) {
-		const struct ipv6_pinfo *np = inet6_sk(sk);
 
 		score = 1;
-		if (!ipv6_addr_any(&np->rcv_saddr)) {
-			if (!ipv6_addr_equal(&np->rcv_saddr, daddr))
+		if (!ipv6_addr_any(&sk->sk_v6_rcv_saddr)) {
+			if (!ipv6_addr_equal(&sk->sk_v6_rcv_saddr, daddr))
 				return -1;
 			score++;
 		}
@@ -229,9 +214,8 @@ static int __inet6_check_established(struct inet_timewait_death_row *death_row,
 {
 	struct inet_hashinfo *hinfo = death_row->hashinfo;
 	struct inet_sock *inet = inet_sk(sk);
-	const struct ipv6_pinfo *np = inet6_sk(sk);
-	const struct in6_addr *daddr = &np->rcv_saddr;
-	const struct in6_addr *saddr = &np->daddr;
+	const struct in6_addr *daddr = &sk->sk_v6_rcv_saddr;
+	const struct in6_addr *saddr = &sk->sk_v6_daddr;
 	const int dif = sk->sk_bound_dev_if;
 	const __portpair ports = INET_COMBINED_PORTS(inet->inet_dport, lport);
 	struct net *net = sock_net(sk);
@@ -250,23 +234,19 @@ static int __inet6_check_established(struct inet_timewait_death_row *death_row,
 		if (sk2->sk_hash != hash)
 			continue;
 
-		if (sk2->sk_state == TCP_TIME_WAIT) {
-			if (likely(INET6_TW_MATCH(sk2, net, saddr, daddr,
-						  ports, dif))) {
+		if (likely(INET6_MATCH(sk2, net, saddr, daddr, ports, dif))) {
+			if (sk2->sk_state == TCP_TIME_WAIT) {
 				tw = inet_twsk(sk2);
 				if (twsk_unique(sk, sk2, twp))
-					goto unique;
-				else
-					goto not_unique;
+					break;
 			}
-		}
-		if (likely(INET6_MATCH(sk2, net, saddr, daddr, ports, dif)))
 			goto not_unique;
+		}
 	}
 
-unique:
 	/* Must record num and sport now. Otherwise we will see
-	 * in hash table socket with a funny identity. */
+	 * in hash table socket with a funny identity.
+	 */
 	inet->inet_num = lport;
 	inet->inet_sport = htons(lport);
 	sk->sk_hash = hash;
@@ -299,9 +279,9 @@ not_unique:
 static inline u32 inet6_sk_port_offset(const struct sock *sk)
 {
 	const struct inet_sock *inet = inet_sk(sk);
-	const struct ipv6_pinfo *np = inet6_sk(sk);
-	return secure_ipv6_port_ephemeral(np->rcv_saddr.s6_addr32,
-					  np->daddr.s6_addr32,
+
+	return secure_ipv6_port_ephemeral(sk->sk_v6_rcv_saddr.s6_addr32,
+					  sk->sk_v6_daddr.s6_addr32,
 					  inet->inet_dport);
 }
 
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index d1e2e8ef29c5..4919a8e6063e 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -174,7 +174,7 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname,
 			}
 
 			if (ipv6_only_sock(sk) ||
-			    !ipv6_addr_v4mapped(&np->daddr)) {
+			    !ipv6_addr_v4mapped(&sk->sk_v6_daddr)) {
 				retv = -EADDRNOTAVAIL;
 				break;
 			}
@@ -1011,7 +1011,7 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
 				struct in6_pktinfo src_info;
 				src_info.ipi6_ifindex = np->mcast_oif ? np->mcast_oif :
 					np->sticky_pktinfo.ipi6_ifindex;
-				src_info.ipi6_addr = np->mcast_oif ? np->daddr : np->sticky_pktinfo.ipi6_addr;
+				src_info.ipi6_addr = np->mcast_oif ? sk->sk_v6_daddr : np->sticky_pktinfo.ipi6_addr;
 				put_cmsg(&msg, SOL_IPV6, IPV6_PKTINFO, sizeof(src_info), &src_info);
 			}
 			if (np->rxopt.bits.rxhlim) {
@@ -1026,7 +1026,8 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
 				struct in6_pktinfo src_info;
 				src_info.ipi6_ifindex = np->mcast_oif ? np->mcast_oif :
 					np->sticky_pktinfo.ipi6_ifindex;
-				src_info.ipi6_addr = np->mcast_oif ? np->daddr : np->sticky_pktinfo.ipi6_addr;
+				src_info.ipi6_addr = np->mcast_oif ? sk->sk_v6_daddr :
+								     np->sticky_pktinfo.ipi6_addr;
 				put_cmsg(&msg, SOL_IPV6, IPV6_2292PKTINFO, sizeof(src_info), &src_info);
 			}
 			if (np->rxopt.bits.rxohlim) {
diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
index d6e4dd8b58df..54b75ead5a69 100644
--- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
@@ -297,9 +297,9 @@ ipv6_getorigdst(struct sock *sk, int optval, void __user *user, int *len)
 	struct nf_conntrack_tuple tuple = { .src.l3num = NFPROTO_IPV6 };
 	struct nf_conn *ct;
 
-	tuple.src.u3.in6 = inet6->rcv_saddr;
+	tuple.src.u3.in6 = sk->sk_v6_rcv_saddr;
 	tuple.src.u.tcp.port = inet->inet_sport;
-	tuple.dst.u3.in6 = inet6->daddr;
+	tuple.dst.u3.in6 = sk->sk_v6_daddr;
 	tuple.dst.u.tcp.port = inet->inet_dport;
 	tuple.dst.protonum = sk->sk_protocol;
 
diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
index 18f19df4189f..8815e31a87fe 100644
--- a/net/ipv6/ping.c
+++ b/net/ipv6/ping.c
@@ -116,7 +116,7 @@ int ping_v6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 	} else {
 		if (sk->sk_state != TCP_ESTABLISHED)
 			return -EDESTADDRREQ;
-		daddr = &np->daddr;
+		daddr = &sk->sk_v6_daddr;
 	}
 
 	if (!iif)
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index a4ed2416399e..3c00842b0079 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -77,20 +77,19 @@ static struct sock *__raw_v6_lookup(struct net *net, struct sock *sk,
 
 	sk_for_each_from(sk)
 		if (inet_sk(sk)->inet_num == num) {
-			struct ipv6_pinfo *np = inet6_sk(sk);
 
 			if (!net_eq(sock_net(sk), net))
 				continue;
 
-			if (!ipv6_addr_any(&np->daddr) &&
-			    !ipv6_addr_equal(&np->daddr, rmt_addr))
+			if (!ipv6_addr_any(&sk->sk_v6_daddr) &&
+			    !ipv6_addr_equal(&sk->sk_v6_daddr, rmt_addr))
 				continue;
 
 			if (sk->sk_bound_dev_if && sk->sk_bound_dev_if != dif)
 				continue;
 
-			if (!ipv6_addr_any(&np->rcv_saddr)) {
-				if (ipv6_addr_equal(&np->rcv_saddr, loc_addr))
+			if (!ipv6_addr_any(&sk->sk_v6_rcv_saddr)) {
+				if (ipv6_addr_equal(&sk->sk_v6_rcv_saddr, loc_addr))
 					goto found;
 				if (is_multicast &&
 				    inet6_mc_check(sk, loc_addr, rmt_addr))
@@ -302,7 +301,7 @@ static int rawv6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 	}
 
 	inet->inet_rcv_saddr = inet->inet_saddr = v4addr;
-	np->rcv_saddr = addr->sin6_addr;
+	sk->sk_v6_rcv_saddr = addr->sin6_addr;
 	if (!(addr_type & IPV6_ADDR_MULTICAST))
 		np->saddr = addr->sin6_addr;
 	err = 0;
@@ -804,8 +803,8 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
 		 * sk->sk_dst_cache.
 		 */
 		if (sk->sk_state == TCP_ESTABLISHED &&
-		    ipv6_addr_equal(daddr, &np->daddr))
-			daddr = &np->daddr;
+		    ipv6_addr_equal(daddr, &sk->sk_v6_daddr))
+			daddr = &sk->sk_v6_daddr;
 
 		if (addr_len >= sizeof(struct sockaddr_in6) &&
 		    sin6->sin6_scope_id &&
@@ -816,7 +815,7 @@ static int rawv6_sendmsg(struct kiocb *iocb, struct sock *sk,
 			return -EDESTADDRREQ;
 
 		proto = inet->inet_num;
-		daddr = &np->daddr;
+		daddr = &sk->sk_v6_daddr;
 		fl6.flowlabel = np->flow_label;
 	}
 
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 528e61afaf5e..541dfc40c7b3 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -192,13 +192,13 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
 	}
 
 	if (tp->rx_opt.ts_recent_stamp &&
-	    !ipv6_addr_equal(&np->daddr, &usin->sin6_addr)) {
+	    !ipv6_addr_equal(&sk->sk_v6_daddr, &usin->sin6_addr)) {
 		tp->rx_opt.ts_recent = 0;
 		tp->rx_opt.ts_recent_stamp = 0;
 		tp->write_seq = 0;
 	}
 
-	np->daddr = usin->sin6_addr;
+	sk->sk_v6_daddr = usin->sin6_addr;
 	np->flow_label = fl6.flowlabel;
 
 	/*
@@ -237,17 +237,17 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
 		} else {
 			ipv6_addr_set_v4mapped(inet->inet_saddr, &np->saddr);
 			ipv6_addr_set_v4mapped(inet->inet_rcv_saddr,
-					       &np->rcv_saddr);
+					       &sk->sk_v6_rcv_saddr);
 		}
 
 		return err;
 	}
 
-	if (!ipv6_addr_any(&np->rcv_saddr))
-		saddr = &np->rcv_saddr;
+	if (!ipv6_addr_any(&sk->sk_v6_rcv_saddr))
+		saddr = &sk->sk_v6_rcv_saddr;
 
 	fl6.flowi6_proto = IPPROTO_TCP;
-	fl6.daddr = np->daddr;
+	fl6.daddr = sk->sk_v6_daddr;
 	fl6.saddr = saddr ? *saddr : np->saddr;
 	fl6.flowi6_oif = sk->sk_bound_dev_if;
 	fl6.flowi6_mark = sk->sk_mark;
@@ -266,7 +266,7 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
 
 	if (saddr == NULL) {
 		saddr = &fl6.saddr;
-		np->rcv_saddr = *saddr;
+		sk->sk_v6_rcv_saddr = *saddr;
 	}
 
 	/* set the source address */
@@ -279,7 +279,7 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
 	rt = (struct rt6_info *) dst;
 	if (tcp_death_row.sysctl_tw_recycle &&
 	    !tp->rx_opt.ts_recent_stamp &&
-	    ipv6_addr_equal(&rt->rt6i_dst.addr, &np->daddr))
+	    ipv6_addr_equal(&rt->rt6i_dst.addr, &sk->sk_v6_daddr))
 		tcp_fetch_timewait_stamp(sk, dst);
 
 	icsk->icsk_ext_hdr_len = 0;
@@ -298,7 +298,7 @@ static int tcp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
 
 	if (!tp->write_seq && likely(!tp->repair))
 		tp->write_seq = secure_tcpv6_sequence_number(np->saddr.s6_addr32,
-							     np->daddr.s6_addr32,
+							     sk->sk_v6_daddr.s6_addr32,
 							     inet->inet_sport,
 							     inet->inet_dport);
 
@@ -515,7 +515,7 @@ static struct tcp_md5sig_key *tcp_v6_md5_do_lookup(struct sock *sk,
 static struct tcp_md5sig_key *tcp_v6_md5_lookup(struct sock *sk,
 						struct sock *addr_sk)
 {
-	return tcp_v6_md5_do_lookup(sk, &inet6_sk(addr_sk)->daddr);
+	return tcp_v6_md5_do_lookup(sk, &addr_sk->sk_v6_daddr);
 }
 
 static struct tcp_md5sig_key *tcp_v6_reqsk_md5_lookup(struct sock *sk,
@@ -621,7 +621,7 @@ static int tcp_v6_md5_hash_skb(char *md5_hash, struct tcp_md5sig_key *key,
 
 	if (sk) {
 		saddr = &inet6_sk(sk)->saddr;
-		daddr = &inet6_sk(sk)->daddr;
+		daddr = &sk->sk_v6_daddr;
 	} else if (req) {
 		saddr = &inet6_rsk(req)->loc_addr;
 		daddr = &inet6_rsk(req)->rmt_addr;
@@ -1116,11 +1116,11 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 
 		memcpy(newnp, np, sizeof(struct ipv6_pinfo));
 
-		ipv6_addr_set_v4mapped(newinet->inet_daddr, &newnp->daddr);
+		ipv6_addr_set_v4mapped(newinet->inet_daddr, &newsk->sk_v6_daddr);
 
 		ipv6_addr_set_v4mapped(newinet->inet_saddr, &newnp->saddr);
 
-		newnp->rcv_saddr = newnp->saddr;
+		newsk->sk_v6_rcv_saddr = newnp->saddr;
 
 		inet_csk(newsk)->icsk_af_ops = &ipv6_mapped;
 		newsk->sk_backlog_rcv = tcp_v4_do_rcv;
@@ -1185,9 +1185,9 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 
 	memcpy(newnp, np, sizeof(struct ipv6_pinfo));
 
-	newnp->daddr = treq->rmt_addr;
+	newsk->sk_v6_daddr = treq->rmt_addr;
 	newnp->saddr = treq->loc_addr;
-	newnp->rcv_saddr = treq->loc_addr;
+	newsk->sk_v6_rcv_saddr = treq->loc_addr;
 	newsk->sk_bound_dev_if = treq->iif;
 
 	/* Now IPv6 options...
@@ -1244,13 +1244,13 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 
 #ifdef CONFIG_TCP_MD5SIG
 	/* Copy over the MD5 key from the original socket */
-	if ((key = tcp_v6_md5_do_lookup(sk, &newnp->daddr)) != NULL) {
+	if ((key = tcp_v6_md5_do_lookup(sk, &newsk->sk_v6_daddr)) != NULL) {
 		/* We're using one, so create a matching key
 		 * on the newsk structure. If we fail to get
 		 * memory, then we end up not copying the key
 		 * across. Shucks.
 		 */
-		tcp_md5_do_add(newsk, (union tcp_md5_addr *)&newnp->daddr,
+		tcp_md5_do_add(newsk, (union tcp_md5_addr *)&newsk->sk_v6_daddr,
 			       AF_INET6, key->key, key->keylen,
 			       sk_gfp_atomic(sk, GFP_ATOMIC));
 	}
@@ -1758,10 +1758,9 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i)
 	const struct inet_sock *inet = inet_sk(sp);
 	const struct tcp_sock *tp = tcp_sk(sp);
 	const struct inet_connection_sock *icsk = inet_csk(sp);
-	const struct ipv6_pinfo *np = inet6_sk(sp);
 
-	dest  = &np->daddr;
-	src   = &np->rcv_saddr;
+	dest  = &sp->sk_v6_daddr;
+	src   = &sp->sk_v6_rcv_saddr;
 	destp = ntohs(inet->inet_dport);
 	srcp  = ntohs(inet->inet_sport);
 
@@ -1810,11 +1809,10 @@ static void get_timewait6_sock(struct seq_file *seq,
 {
 	const struct in6_addr *dest, *src;
 	__u16 destp, srcp;
-	const struct inet6_timewait_sock *tw6 = inet6_twsk((struct sock *)tw);
 	s32 delta = tw->tw_ttd - inet_tw_time_stamp();
 
-	dest = &tw6->tw_v6_daddr;
-	src  = &tw6->tw_v6_rcv_saddr;
+	dest = &tw->tw_v6_daddr;
+	src  = &tw->tw_v6_rcv_saddr;
 	destp = ntohs(tw->tw_dport);
 	srcp  = ntohs(tw->tw_sport);
 
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 37532478e3ba..b496de19a341 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -55,11 +55,10 @@
 
 int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
 {
-	const struct in6_addr *sk_rcv_saddr6 = &inet6_sk(sk)->rcv_saddr;
 	const struct in6_addr *sk2_rcv_saddr6 = inet6_rcv_saddr(sk2);
 	int sk_ipv6only = ipv6_only_sock(sk);
 	int sk2_ipv6only = inet_v6_ipv6only(sk2);
-	int addr_type = ipv6_addr_type(sk_rcv_saddr6);
+	int addr_type = ipv6_addr_type(&sk->sk_v6_rcv_saddr);
 	int addr_type2 = sk2_rcv_saddr6 ? ipv6_addr_type(sk2_rcv_saddr6) : IPV6_ADDR_MAPPED;
 
 	/* if both are mapped, treat as IPv4 */
@@ -77,7 +76,7 @@ int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
 		return 1;
 
 	if (sk2_rcv_saddr6 &&
-	    ipv6_addr_equal(sk_rcv_saddr6, sk2_rcv_saddr6))
+	    ipv6_addr_equal(&sk->sk_v6_rcv_saddr, sk2_rcv_saddr6))
 		return 1;
 
 	return 0;
@@ -105,7 +104,7 @@ int udp_v6_get_port(struct sock *sk, unsigned short snum)
 	unsigned int hash2_nulladdr =
 		udp6_portaddr_hash(sock_net(sk), &in6addr_any, snum);
 	unsigned int hash2_partial =
-		udp6_portaddr_hash(sock_net(sk), &inet6_sk(sk)->rcv_saddr, 0);
+		udp6_portaddr_hash(sock_net(sk), &sk->sk_v6_rcv_saddr, 0);
 
 	/* precompute partial secondary hash */
 	udp_sk(sk)->udp_portaddr_hash = hash2_partial;
@@ -115,7 +114,7 @@ int udp_v6_get_port(struct sock *sk, unsigned short snum)
 static void udp_v6_rehash(struct sock *sk)
 {
 	u16 new_hash = udp6_portaddr_hash(sock_net(sk),
-					  &inet6_sk(sk)->rcv_saddr,
+					  &sk->sk_v6_rcv_saddr,
 					  inet_sk(sk)->inet_num);
 
 	udp_lib_rehash(sk, new_hash);
@@ -131,7 +130,6 @@ static inline int compute_score(struct sock *sk, struct net *net,
 
 	if (net_eq(sock_net(sk), net) && udp_sk(sk)->udp_port_hash == hnum &&
 			sk->sk_family == PF_INET6) {
-		struct ipv6_pinfo *np = inet6_sk(sk);
 		struct inet_sock *inet = inet_sk(sk);
 
 		score = 0;
@@ -140,13 +138,13 @@ static inline int compute_score(struct sock *sk, struct net *net,
 				return -1;
 			score++;
 		}
-		if (!ipv6_addr_any(&np->rcv_saddr)) {
-			if (!ipv6_addr_equal(&np->rcv_saddr, daddr))
+		if (!ipv6_addr_any(&sk->sk_v6_rcv_saddr)) {
+			if (!ipv6_addr_equal(&sk->sk_v6_rcv_saddr, daddr))
 				return -1;
 			score++;
 		}
-		if (!ipv6_addr_any(&np->daddr)) {
-			if (!ipv6_addr_equal(&np->daddr, saddr))
+		if (!ipv6_addr_any(&sk->sk_v6_daddr)) {
+			if (!ipv6_addr_equal(&sk->sk_v6_daddr, saddr))
 				return -1;
 			score++;
 		}
@@ -169,10 +167,9 @@ static inline int compute_score2(struct sock *sk, struct net *net,
 
 	if (net_eq(sock_net(sk), net) && udp_sk(sk)->udp_port_hash == hnum &&
 			sk->sk_family == PF_INET6) {
-		struct ipv6_pinfo *np = inet6_sk(sk);
 		struct inet_sock *inet = inet_sk(sk);
 
-		if (!ipv6_addr_equal(&np->rcv_saddr, daddr))
+		if (!ipv6_addr_equal(&sk->sk_v6_rcv_saddr, daddr))
 			return -1;
 		score = 0;
 		if (inet->inet_dport) {
@@ -180,8 +177,8 @@ static inline int compute_score2(struct sock *sk, struct net *net,
 				return -1;
 			score++;
 		}
-		if (!ipv6_addr_any(&np->daddr)) {
-			if (!ipv6_addr_equal(&np->daddr, saddr))
+		if (!ipv6_addr_any(&sk->sk_v6_daddr)) {
+			if (!ipv6_addr_equal(&sk->sk_v6_daddr, saddr))
 				return -1;
 			score++;
 		}
@@ -549,7 +546,7 @@ static int __udpv6_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
 {
 	int rc;
 
-	if (!ipv6_addr_any(&inet6_sk(sk)->daddr)) {
+	if (!ipv6_addr_any(&sk->sk_v6_daddr)) {
 		sock_rps_save_rxhash(sk, skb);
 		sk_mark_napi_id(sk, skb);
 	}
@@ -690,20 +687,19 @@ static struct sock *udp_v6_mcast_next(struct net *net, struct sock *sk,
 
 		if (udp_sk(s)->udp_port_hash == num &&
 		    s->sk_family == PF_INET6) {
-			struct ipv6_pinfo *np = inet6_sk(s);
 			if (inet->inet_dport) {
 				if (inet->inet_dport != rmt_port)
 					continue;
 			}
-			if (!ipv6_addr_any(&np->daddr) &&
-			    !ipv6_addr_equal(&np->daddr, rmt_addr))
+			if (!ipv6_addr_any(&sk->sk_v6_daddr) &&
+			    !ipv6_addr_equal(&sk->sk_v6_daddr, rmt_addr))
 				continue;
 
 			if (s->sk_bound_dev_if && s->sk_bound_dev_if != dif)
 				continue;
 
-			if (!ipv6_addr_any(&np->rcv_saddr)) {
-				if (!ipv6_addr_equal(&np->rcv_saddr, loc_addr))
+			if (!ipv6_addr_any(&sk->sk_v6_rcv_saddr)) {
+				if (!ipv6_addr_equal(&sk->sk_v6_rcv_saddr, loc_addr))
 					continue;
 			}
 			if (!inet6_mc_check(s, loc_addr, rmt_addr))
@@ -1063,7 +1059,7 @@ int udpv6_sendmsg(struct kiocb *iocb, struct sock *sk,
 	} else if (!up->pending) {
 		if (sk->sk_state != TCP_ESTABLISHED)
 			return -EDESTADDRREQ;
-		daddr = &np->daddr;
+		daddr = &sk->sk_v6_daddr;
 	} else
 		daddr = NULL;
 
@@ -1133,8 +1129,8 @@ do_udp_sendmsg:
 		 * sk->sk_dst_cache.
 		 */
 		if (sk->sk_state == TCP_ESTABLISHED &&
-		    ipv6_addr_equal(daddr, &np->daddr))
-			daddr = &np->daddr;
+		    ipv6_addr_equal(daddr, &sk->sk_v6_daddr))
+			daddr = &sk->sk_v6_daddr;
 
 		if (addr_len >= sizeof(struct sockaddr_in6) &&
 		    sin6->sin6_scope_id &&
@@ -1145,7 +1141,7 @@ do_udp_sendmsg:
 			return -EDESTADDRREQ;
 
 		fl6.fl6_dport = inet->inet_dport;
-		daddr = &np->daddr;
+		daddr = &sk->sk_v6_daddr;
 		fl6.flowlabel = np->flow_label;
 		connected = 1;
 	}
@@ -1261,8 +1257,8 @@ do_append_data:
 	if (dst) {
 		if (connected) {
 			ip6_dst_store(sk, dst,
-				      ipv6_addr_equal(&fl6.daddr, &np->daddr) ?
-				      &np->daddr : NULL,
+				      ipv6_addr_equal(&fl6.daddr, &sk->sk_v6_daddr) ?
+				      &sk->sk_v6_daddr : NULL,
 #ifdef CONFIG_IPV6_SUBTREES
 				      ipv6_addr_equal(&fl6.saddr, &np->saddr) ?
 				      &np->saddr :
diff --git a/net/l2tp/l2tp_core.c b/net/l2tp/l2tp_core.c
index b076e8309bc2..9af77d9c0ec9 100644
--- a/net/l2tp/l2tp_core.c
+++ b/net/l2tp/l2tp_core.c
@@ -1181,7 +1181,7 @@ static void l2tp_xmit_ipv6_csum(struct sock *sk, struct sk_buff *skb,
 	    !(skb_dst(skb)->dev->features & NETIF_F_IPV6_CSUM)) {
 		__wsum csum = skb_checksum(skb, 0, udp_len, 0);
 		skb->ip_summed = CHECKSUM_UNNECESSARY;
-		uh->check = csum_ipv6_magic(&np->saddr, &np->daddr, udp_len,
+		uh->check = csum_ipv6_magic(&np->saddr, &sk->sk_v6_daddr, udp_len,
 					    IPPROTO_UDP, csum);
 		if (uh->check == 0)
 			uh->check = CSUM_MANGLED_0;
@@ -1189,7 +1189,7 @@ static void l2tp_xmit_ipv6_csum(struct sock *sk, struct sk_buff *skb,
 		skb->ip_summed = CHECKSUM_PARTIAL;
 		skb->csum_start = skb_transport_header(skb) - skb->head;
 		skb->csum_offset = offsetof(struct udphdr, check);
-		uh->check = ~csum_ipv6_magic(&np->saddr, &np->daddr,
+		uh->check = ~csum_ipv6_magic(&np->saddr, &sk->sk_v6_daddr,
 					     udp_len, IPPROTO_UDP, 0);
 	}
 }
@@ -1713,13 +1713,13 @@ int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32
 		struct ipv6_pinfo *np = inet6_sk(sk);
 
 		if (ipv6_addr_v4mapped(&np->saddr) &&
-		    ipv6_addr_v4mapped(&np->daddr)) {
+		    ipv6_addr_v4mapped(&sk->sk_v6_daddr)) {
 			struct inet_sock *inet = inet_sk(sk);
 
 			tunnel->v4mapped = true;
 			inet->inet_saddr = np->saddr.s6_addr32[3];
-			inet->inet_rcv_saddr = np->rcv_saddr.s6_addr32[3];
-			inet->inet_daddr = np->daddr.s6_addr32[3];
+			inet->inet_rcv_saddr = sk->sk_v6_rcv_saddr.s6_addr32[3];
+			inet->inet_daddr = sk->sk_v6_daddr.s6_addr32[3];
 		} else {
 			tunnel->v4mapped = false;
 		}
diff --git a/net/l2tp/l2tp_debugfs.c b/net/l2tp/l2tp_debugfs.c
index 072d7202e182..2d6760a2ae34 100644
--- a/net/l2tp/l2tp_debugfs.c
+++ b/net/l2tp/l2tp_debugfs.c
@@ -127,9 +127,10 @@ static void l2tp_dfs_seq_tunnel_show(struct seq_file *m, void *v)
 
 #if IS_ENABLED(CONFIG_IPV6)
 		if (tunnel->sock->sk_family == AF_INET6) {
-			struct ipv6_pinfo *np = inet6_sk(tunnel->sock);
+			const struct ipv6_pinfo *np = inet6_sk(tunnel->sock);
+
 			seq_printf(m, " from %pI6c to %pI6c\n",
-				&np->saddr, &np->daddr);
+				&np->saddr, &tunnel->sock->sk_v6_daddr);
 		} else
 #endif
 		seq_printf(m, " from %pI4 to %pI4\n",
diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
index b8a6039314e8..cfd65304be60 100644
--- a/net/l2tp/l2tp_ip6.c
+++ b/net/l2tp/l2tp_ip6.c
@@ -63,7 +63,7 @@ static struct sock *__l2tp_ip6_bind_lookup(struct net *net,
 	struct sock *sk;
 
 	sk_for_each_bound(sk, &l2tp_ip6_bind_table) {
-		struct in6_addr *addr = inet6_rcv_saddr(sk);
+		const struct in6_addr *addr = inet6_rcv_saddr(sk);
 		struct l2tp_ip6_sock *l2tp = l2tp_ip6_sk(sk);
 
 		if (l2tp == NULL)
@@ -331,7 +331,7 @@ static int l2tp_ip6_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 	rcu_read_unlock();
 
 	inet->inet_rcv_saddr = inet->inet_saddr = v4addr;
-	np->rcv_saddr = addr->l2tp_addr;
+	sk->sk_v6_rcv_saddr = addr->l2tp_addr;
 	np->saddr = addr->l2tp_addr;
 
 	l2tp_ip6_sk(sk)->conn_id = addr->l2tp_conn_id;
@@ -421,14 +421,14 @@ static int l2tp_ip6_getname(struct socket *sock, struct sockaddr *uaddr,
 		if (!lsk->peer_conn_id)
 			return -ENOTCONN;
 		lsa->l2tp_conn_id = lsk->peer_conn_id;
-		lsa->l2tp_addr = np->daddr;
+		lsa->l2tp_addr = sk->sk_v6_daddr;
 		if (np->sndflow)
 			lsa->l2tp_flowinfo = np->flow_label;
 	} else {
-		if (ipv6_addr_any(&np->rcv_saddr))
+		if (ipv6_addr_any(&sk->sk_v6_rcv_saddr))
 			lsa->l2tp_addr = np->saddr;
 		else
-			lsa->l2tp_addr = np->rcv_saddr;
+			lsa->l2tp_addr = sk->sk_v6_rcv_saddr;
 
 		lsa->l2tp_conn_id = lsk->conn_id;
 	}
@@ -537,8 +537,8 @@ static int l2tp_ip6_sendmsg(struct kiocb *iocb, struct sock *sk,
 		 * sk->sk_dst_cache.
 		 */
 		if (sk->sk_state == TCP_ESTABLISHED &&
-		    ipv6_addr_equal(daddr, &np->daddr))
-			daddr = &np->daddr;
+		    ipv6_addr_equal(daddr, &sk->sk_v6_daddr))
+			daddr = &sk->sk_v6_daddr;
 
 		if (addr_len >= sizeof(struct sockaddr_in6) &&
 		    lsa->l2tp_scope_id &&
@@ -548,7 +548,7 @@ static int l2tp_ip6_sendmsg(struct kiocb *iocb, struct sock *sk,
 		if (sk->sk_state != TCP_ESTABLISHED)
 			return -EDESTADDRREQ;
 
-		daddr = &np->daddr;
+		daddr = &sk->sk_v6_daddr;
 		fl6.flowlabel = np->flow_label;
 	}
 
diff --git a/net/l2tp/l2tp_netlink.c b/net/l2tp/l2tp_netlink.c
index 0825ff26e113..be446d517bc9 100644
--- a/net/l2tp/l2tp_netlink.c
+++ b/net/l2tp/l2tp_netlink.c
@@ -306,8 +306,8 @@ static int l2tp_nl_tunnel_send(struct sk_buff *skb, u32 portid, u32 seq, int fla
 		if (np) {
 			if (nla_put(skb, L2TP_ATTR_IP6_SADDR, sizeof(np->saddr),
 				    &np->saddr) ||
-			    nla_put(skb, L2TP_ATTR_IP6_DADDR, sizeof(np->daddr),
-				    &np->daddr))
+			    nla_put(skb, L2TP_ATTR_IP6_DADDR, sizeof(sk->sk_v6_daddr),
+				    &sk->sk_v6_daddr))
 				goto nla_put_failure;
 		} else
 #endif
diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c
index 5ebee2ded9e9..f0a7adaef2ea 100644
--- a/net/l2tp/l2tp_ppp.c
+++ b/net/l2tp/l2tp_ppp.c
@@ -906,8 +906,8 @@ static int pppol2tp_getname(struct socket *sock, struct sockaddr *uaddr,
 #if IS_ENABLED(CONFIG_IPV6)
 	} else if ((tunnel->version == 2) &&
 		   (tunnel->sock->sk_family == AF_INET6)) {
-		struct ipv6_pinfo *np = inet6_sk(tunnel->sock);
 		struct sockaddr_pppol2tpin6 sp;
+
 		len = sizeof(sp);
 		memset(&sp, 0, len);
 		sp.sa_family	= AF_PPPOX;
@@ -920,13 +920,13 @@ static int pppol2tp_getname(struct socket *sock, struct sockaddr *uaddr,
 		sp.pppol2tp.d_session = session->peer_session_id;
 		sp.pppol2tp.addr.sin6_family = AF_INET6;
 		sp.pppol2tp.addr.sin6_port = inet->inet_dport;
-		memcpy(&sp.pppol2tp.addr.sin6_addr, &np->daddr,
-		       sizeof(np->daddr));
+		memcpy(&sp.pppol2tp.addr.sin6_addr, &tunnel->sock->sk_v6_daddr,
+		       sizeof(tunnel->sock->sk_v6_daddr));
 		memcpy(uaddr, &sp, len);
 	} else if ((tunnel->version == 3) &&
 		   (tunnel->sock->sk_family == AF_INET6)) {
-		struct ipv6_pinfo *np = inet6_sk(tunnel->sock);
 		struct sockaddr_pppol2tpv3in6 sp;
+
 		len = sizeof(sp);
 		memset(&sp, 0, len);
 		sp.sa_family	= AF_PPPOX;
@@ -939,8 +939,8 @@ static int pppol2tp_getname(struct socket *sock, struct sockaddr *uaddr,
 		sp.pppol2tp.d_session = session->peer_session_id;
 		sp.pppol2tp.addr.sin6_family = AF_INET6;
 		sp.pppol2tp.addr.sin6_port = inet->inet_dport;
-		memcpy(&sp.pppol2tp.addr.sin6_addr, &np->daddr,
-		       sizeof(np->daddr));
+		memcpy(&sp.pppol2tp.addr.sin6_addr, &tunnel->sock->sk_v6_daddr,
+		       sizeof(tunnel->sock->sk_v6_daddr));
 		memcpy(uaddr, &sp, len);
 #endif
 	} else if (tunnel->version == 3) {
diff --git a/net/netfilter/xt_TPROXY.c b/net/netfilter/xt_TPROXY.c
index 5d8a3a3cd5a7..ef8a926752a9 100644
--- a/net/netfilter/xt_TPROXY.c
+++ b/net/netfilter/xt_TPROXY.c
@@ -200,7 +200,7 @@ nf_tproxy_get_sock_v6(struct net *net, const u8 protocol,
 				     in->ifindex);
 		if (sk) {
 			int connected = (sk->sk_state == TCP_ESTABLISHED);
-			int wildcard = ipv6_addr_any(&inet6_sk(sk)->rcv_saddr);
+			int wildcard = ipv6_addr_any(&sk->sk_v6_rcv_saddr);
 
 			/* NOTE: we return listeners even if bound to
 			 * 0.0.0.0, those are filtered out in
diff --git a/net/netfilter/xt_socket.c b/net/netfilter/xt_socket.c
index 06df2b9110f5..3dd0e374bc2b 100644
--- a/net/netfilter/xt_socket.c
+++ b/net/netfilter/xt_socket.c
@@ -370,7 +370,7 @@ socket_mt6_v1_v2(const struct sk_buff *skb, struct xt_action_param *par)
 		 */
 		wildcard = (!(info->flags & XT_SOCKET_NOWILDCARD) &&
 			    sk->sk_state != TCP_TIME_WAIT &&
-			    ipv6_addr_any(&inet6_sk(sk)->rcv_saddr));
+			    ipv6_addr_any(&sk->sk_v6_rcv_saddr));
 
 		/* Ignore non-transparent sockets,
 		   if XT_SOCKET_TRANSPARENT is used */
diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index e7b2d4fe2b6a..f6334aa19151 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -426,20 +426,20 @@ static void sctp_v6_from_sk(union sctp_addr *addr, struct sock *sk)
 {
 	addr->v6.sin6_family = AF_INET6;
 	addr->v6.sin6_port = 0;
-	addr->v6.sin6_addr = inet6_sk(sk)->rcv_saddr;
+	addr->v6.sin6_addr = sk->sk_v6_rcv_saddr;
 }
 
 /* Initialize sk->sk_rcv_saddr from sctp_addr. */
 static void sctp_v6_to_sk_saddr(union sctp_addr *addr, struct sock *sk)
 {
 	if (addr->sa.sa_family == AF_INET && sctp_sk(sk)->v4mapped) {
-		inet6_sk(sk)->rcv_saddr.s6_addr32[0] = 0;
-		inet6_sk(sk)->rcv_saddr.s6_addr32[1] = 0;
-		inet6_sk(sk)->rcv_saddr.s6_addr32[2] = htonl(0x0000ffff);
-		inet6_sk(sk)->rcv_saddr.s6_addr32[3] =
+		sk->sk_v6_rcv_saddr.s6_addr32[0] = 0;
+		sk->sk_v6_rcv_saddr.s6_addr32[1] = 0;
+		sk->sk_v6_rcv_saddr.s6_addr32[2] = htonl(0x0000ffff);
+		sk->sk_v6_rcv_saddr.s6_addr32[3] =
 			addr->v4.sin_addr.s_addr;
 	} else {
-		inet6_sk(sk)->rcv_saddr = addr->v6.sin6_addr;
+		sk->sk_v6_rcv_saddr = addr->v6.sin6_addr;
 	}
 }
 
@@ -447,12 +447,12 @@ static void sctp_v6_to_sk_saddr(union sctp_addr *addr, struct sock *sk)
 static void sctp_v6_to_sk_daddr(union sctp_addr *addr, struct sock *sk)
 {
 	if (addr->sa.sa_family == AF_INET && sctp_sk(sk)->v4mapped) {
-		inet6_sk(sk)->daddr.s6_addr32[0] = 0;
-		inet6_sk(sk)->daddr.s6_addr32[1] = 0;
-		inet6_sk(sk)->daddr.s6_addr32[2] = htonl(0x0000ffff);
-		inet6_sk(sk)->daddr.s6_addr32[3] = addr->v4.sin_addr.s_addr;
+		sk->sk_v6_daddr.s6_addr32[0] = 0;
+		sk->sk_v6_daddr.s6_addr32[1] = 0;
+		sk->sk_v6_daddr.s6_addr32[2] = htonl(0x0000ffff);
+		sk->sk_v6_daddr.s6_addr32[3] = addr->v4.sin_addr.s_addr;
 	} else {
-		inet6_sk(sk)->daddr = addr->v6.sin6_addr;
+		sk->sk_v6_daddr = addr->v6.sin6_addr;
 	}
 }
 
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 9c9caaa5e0d3..0045c7cf1e9e 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -294,7 +294,7 @@ static int svc_one_sock_name(struct svc_sock *svsk, char *buf, int remaining)
 	case PF_INET6:
 		len = snprintf(buf, remaining, "ipv6 %s %pI6 %d\n",
 				proto_name,
-				&inet6_sk(sk)->rcv_saddr,
+				&sk->sk_v6_rcv_saddr,
 				inet_sk(sk)->inet_num);
 		break;
 	default:
diff --git a/security/lsm_audit.c b/security/lsm_audit.c
index 8d8d97dbb389..80554fcf9fcc 100644
--- a/security/lsm_audit.c
+++ b/security/lsm_audit.c
@@ -304,12 +304,11 @@ static void dump_common_audit_data(struct audit_buffer *ab,
 			}
 			case AF_INET6: {
 				struct inet_sock *inet = inet_sk(sk);
-				struct ipv6_pinfo *inet6 = inet6_sk(sk);
 
-				print_ipv6_addr(ab, &inet6->rcv_saddr,
+				print_ipv6_addr(ab, &sk->sk_v6_rcv_saddr,
 						inet->inet_sport,
 						"laddr", "lport");
-				print_ipv6_addr(ab, &inet6->daddr,
+				print_ipv6_addr(ab, &sk->sk_v6_daddr,
 						inet->inet_dport,
 						"faddr", "fport");
 				break;
-- 
cgit 


From 90fc9cd286846f884e35fb6a611d0c50f2d21a26 Mon Sep 17 00:00:00 2001
From: Jacob Pan <jacob.jun.pan@linux.intel.com>
Date: Thu, 26 Sep 2013 04:33:25 -0700
Subject: thermal/intel_powerclamp: Add newer CPU models

This will enable intel_powerclamp driver on newer Intel CPUs
including some Ivy Bridge and Haswell processors.

Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
 drivers/thermal/intel_powerclamp.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/thermal/intel_powerclamp.c b/drivers/thermal/intel_powerclamp.c
index a7cd170b86d2..8f181b3f842b 100644
--- a/drivers/thermal/intel_powerclamp.c
+++ b/drivers/thermal/intel_powerclamp.c
@@ -675,6 +675,11 @@ static const struct x86_cpu_id intel_powerclamp_ids[] = {
 	{ X86_VENDOR_INTEL, 6, 0x2e},
 	{ X86_VENDOR_INTEL, 6, 0x2f},
 	{ X86_VENDOR_INTEL, 6, 0x3a},
+	{ X86_VENDOR_INTEL, 6, 0x3c},
+	{ X86_VENDOR_INTEL, 6, 0x3e},
+	{ X86_VENDOR_INTEL, 6, 0x3f},
+	{ X86_VENDOR_INTEL, 6, 0x45},
+	{ X86_VENDOR_INTEL, 6, 0x46},
 	{}
 };
 MODULE_DEVICE_TABLE(x86cpu, intel_powerclamp_ids);
-- 
cgit 


From 6423d6df1440a8acfc2f375d7cbc4cd66c2e6910 Mon Sep 17 00:00:00 2001
From: Suman Anna <s-anna@ti.com>
Date: Tue, 8 Oct 2013 23:46:49 -0600
Subject: ARM: OMAP2+: hwmod: check for module address space during init

The hwmod init sequence involves initializing and idling all the
hwmods during bootup. If a module class has sysconfig, the init
sequence utilizes the module register base for performing any
sysc configuration.

The module address space is being removed from hwmod database and
retrieved from the <reg> property of the corresponding DT node.
If a hwmod does not have its corresponding DT node defined and the
memory address space is not defined in the corresponding
omap_hwmod_ocp_if, then the module register target address space
would be NULL and any sysc programming would result in a NULL
pointer dereference and a kernel boot hang.

Handle this scenario by checking for a valid module address space
during the _init of each hwmod, and leaving it in the registered
state if no module register address base is defined in either of
the hwmod data or the DT data.

Signed-off-by: Suman Anna <s-anna@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
[paul@pwsan.com: use -ENXIO rather than -ENOMEM to indicate a missing address
 space error; fixed checkpatch.pl problem]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/omap_hwmod.c | 29 +++++++++++++++++++----------
 1 file changed, 19 insertions(+), 10 deletions(-)

diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index d9ee0ff094d4..3d5db8c83b3c 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -2361,21 +2361,23 @@ static struct device_node *of_dev_hwmod_lookup(struct device_node *np,
  * Cache the virtual address used by the MPU to access this IP block's
  * registers.  This address is needed early so the OCP registers that
  * are part of the device's address space can be ioremapped properly.
- * No return value.
+ *
+ * Returns 0 on success, -EINVAL if an invalid hwmod is passed, and
+ * -ENXIO on absent or invalid register target address space.
  */
-static void __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data)
+static int __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data)
 {
 	struct omap_hwmod_addr_space *mem;
 	void __iomem *va_start = NULL;
 	struct device_node *np;
 
 	if (!oh)
-		return;
+		return -EINVAL;
 
 	_save_mpu_port_index(oh);
 
 	if (oh->_int_flags & _HWMOD_NO_MPU_PORT)
-		return;
+		return -ENXIO;
 
 	mem = _find_mpu_rt_addr_space(oh);
 	if (!mem) {
@@ -2384,7 +2386,7 @@ static void __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data)
 
 		/* Extract the IO space from device tree blob */
 		if (!of_have_populated_dt())
-			return;
+			return -ENXIO;
 
 		np = of_dev_hwmod_lookup(of_find_node_by_name(NULL, "ocp"), oh);
 		if (np)
@@ -2395,13 +2397,14 @@ static void __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data)
 
 	if (!va_start) {
 		pr_err("omap_hwmod: %s: Could not ioremap\n", oh->name);
-		return;
+		return -ENXIO;
 	}
 
 	pr_debug("omap_hwmod: %s: MPU register target at va %p\n",
 		 oh->name, va_start);
 
 	oh->_mpu_rt_va = va_start;
+	return 0;
 }
 
 /**
@@ -2414,8 +2417,8 @@ static void __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data)
  * registered at this point.  This is the first of two phases for
  * hwmod initialization.  Code called here does not touch any hardware
  * registers, it simply prepares internal data structures.  Returns 0
- * upon success or if the hwmod isn't registered, or -EINVAL upon
- * failure.
+ * upon success or if the hwmod isn't registered or if the hwmod's
+ * address space is not defined, or -EINVAL upon failure.
  */
 static int __init _init(struct omap_hwmod *oh, void *data)
 {
@@ -2424,8 +2427,14 @@ static int __init _init(struct omap_hwmod *oh, void *data)
 	if (oh->_state != _HWMOD_STATE_REGISTERED)
 		return 0;
 
-	if (oh->class->sysc)
-		_init_mpu_rt_base(oh, NULL);
+	if (oh->class->sysc) {
+		r = _init_mpu_rt_base(oh, NULL);
+		if (r < 0) {
+			WARN(1, "omap_hwmod: %s: doesn't have mpu register target base\n",
+			     oh->name);
+			return 0;
+		}
+	}
 
 	r = _init_clocks(oh, NULL);
 	if (r < 0) {
-- 
cgit 


From 398917ce161e10d3c66afaefdb89c73c64c4b02d Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@debian.org>
Date: Tue, 8 Oct 2013 23:46:49 -0600
Subject: ARM: OMAP2+: hwmod data: Add SSI information

This patch adds Synchronous Serial Interface (SSI) hwmod support for
OMAP34xx SoCs.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/omap_hwmod_3xxx_data.c | 48 ++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
index 0c3a427da544..9e56fabd7fa3 100644
--- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
@@ -3693,6 +3693,53 @@ static struct omap_hwmod_ocp_if omap3xxx_l4_core__aes = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
+/*
+ * 'ssi' class
+ * synchronous serial interface (multichannel and full-duplex serial if)
+ */
+
+static struct omap_hwmod_class_sysconfig omap34xx_ssi_sysc = {
+	.rev_offs	= 0x0000,
+	.sysc_offs	= 0x0010,
+	.syss_offs	= 0x0014,
+	.sysc_flags	= (SYSC_HAS_AUTOIDLE | SYSC_HAS_EMUFREE |
+			   SYSC_HAS_MIDLEMODE | SYSC_HAS_SIDLEMODE |
+			   SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
+			   SIDLE_SMART_WKUP | MSTANDBY_FORCE | MSTANDBY_NO |
+			   MSTANDBY_SMART | MSTANDBY_SMART_WKUP),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class omap34xx_ssi_hwmod_class = {
+	.name	= "ssi",
+	.sysc	= &omap34xx_ssi_sysc,
+};
+
+static struct omap_hwmod omap34xx_ssi_hwmod = {
+	.name		= "ssi",
+	.class		= &omap34xx_ssi_hwmod_class,
+	.clkdm_name	= "core_l4_clkdm",
+	.main_clk	= "ssi_ssr_fck",
+	.prcm		= {
+		.omap2 = {
+			.prcm_reg_id		= 1,
+			.module_bit		= OMAP3430_EN_SSI_SHIFT,
+			.module_offs		= CORE_MOD,
+			.idlest_reg_id		= 1,
+			.idlest_idle_bit	= OMAP3430ES2_ST_SSI_IDLE_SHIFT,
+		},
+	},
+};
+
+/* L4 CORE -> SSI */
+static struct omap_hwmod_ocp_if omap34xx_l4_core__ssi = {
+	.master		= &omap3xxx_l4_core_hwmod,
+	.slave		= &omap34xx_ssi_hwmod,
+	.clk		= "ssi_ick",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
 static struct omap_hwmod_ocp_if *omap3xxx_hwmod_ocp_ifs[] __initdata = {
 	&omap3xxx_l3_main__l4_core,
 	&omap3xxx_l3_main__l4_per,
@@ -3818,6 +3865,7 @@ static struct omap_hwmod_ocp_if *omap34xx_hwmod_ocp_ifs[] __initdata = {
 #ifdef CONFIG_OMAP_IOMMU_IVA2
 	&omap3xxx_l3_main__mmu_iva,
 #endif
+	&omap34xx_l4_core__ssi,
 	NULL
 };
 
-- 
cgit 


From e01478b01da8f2ec190ea730cfc4536b183a55c8 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Tue, 8 Oct 2013 23:46:50 -0600
Subject: ARM: OMAP5: hwmod data: Add USB Host and TLL modules

Add hwmod data for High Speed USB host and TLL modules

CC: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/omap_hwmod_54xx_data.c | 135 +++++++++++++++++++++++++++++
 1 file changed, 135 insertions(+)

diff --git a/arch/arm/mach-omap2/omap_hwmod_54xx_data.c b/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
index cde415570e04..b1725478d767 100644
--- a/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
@@ -1464,6 +1464,123 @@ static struct omap_hwmod omap54xx_uart6_hwmod = {
 	},
 };
 
+/*
+ * 'usb_host_hs' class
+ * high-speed multi-port usb host controller
+ */
+
+static struct omap_hwmod_class_sysconfig omap54xx_usb_host_hs_sysc = {
+	.rev_offs	= 0x0000,
+	.sysc_offs	= 0x0010,
+	.sysc_flags	= (SYSC_HAS_MIDLEMODE | SYSC_HAS_RESET_STATUS |
+			   SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
+			   SIDLE_SMART_WKUP | MSTANDBY_FORCE | MSTANDBY_NO |
+			   MSTANDBY_SMART | MSTANDBY_SMART_WKUP),
+	.sysc_fields	= &omap_hwmod_sysc_type2,
+};
+
+static struct omap_hwmod_class omap54xx_usb_host_hs_hwmod_class = {
+	.name	= "usb_host_hs",
+	.sysc	= &omap54xx_usb_host_hs_sysc,
+};
+
+static struct omap_hwmod omap54xx_usb_host_hs_hwmod = {
+	.name		= "usb_host_hs",
+	.class		= &omap54xx_usb_host_hs_hwmod_class,
+	.clkdm_name	= "l3init_clkdm",
+	/*
+	 * Errata: USBHOST Configured In Smart-Idle Can Lead To a Deadlock
+	 * id: i660
+	 *
+	 * Description:
+	 * In the following configuration :
+	 * - USBHOST module is set to smart-idle mode
+	 * - PRCM asserts idle_req to the USBHOST module ( This typically
+	 *   happens when the system is going to a low power mode : all ports
+	 *   have been suspended, the master part of the USBHOST module has
+	 *   entered the standby state, and SW has cut the functional clocks)
+	 * - an USBHOST interrupt occurs before the module is able to answer
+	 *   idle_ack, typically a remote wakeup IRQ.
+	 * Then the USB HOST module will enter a deadlock situation where it
+	 * is no more accessible nor functional.
+	 *
+	 * Workaround:
+	 * Don't use smart idle; use only force idle, hence HWMOD_SWSUP_SIDLE
+	 */
+
+	/*
+	 * Errata: USB host EHCI may stall when entering smart-standby mode
+	 * Id: i571
+	 *
+	 * Description:
+	 * When the USBHOST module is set to smart-standby mode, and when it is
+	 * ready to enter the standby state (i.e. all ports are suspended and
+	 * all attached devices are in suspend mode), then it can wrongly assert
+	 * the Mstandby signal too early while there are still some residual OCP
+	 * transactions ongoing. If this condition occurs, the internal state
+	 * machine may go to an undefined state and the USB link may be stuck
+	 * upon the next resume.
+	 *
+	 * Workaround:
+	 * Don't use smart standby; use only force standby,
+	 * hence HWMOD_SWSUP_MSTANDBY
+	 */
+
+	/*
+	 * During system boot; If the hwmod framework resets the module
+	 * the module will have smart idle settings; which can lead to deadlock
+	 * (above Errata Id:i660); so, dont reset the module during boot;
+	 * Use HWMOD_INIT_NO_RESET.
+	 */
+
+	.flags		= HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY |
+			  HWMOD_INIT_NO_RESET,
+	.main_clk	= "l3init_60m_fclk",
+	.prcm = {
+		.omap4 = {
+			.clkctrl_offs = OMAP54XX_CM_L3INIT_USB_HOST_HS_CLKCTRL_OFFSET,
+			.context_offs = OMAP54XX_RM_L3INIT_USB_HOST_HS_CONTEXT_OFFSET,
+			.modulemode   = MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/*
+ * 'usb_tll_hs' class
+ * usb_tll_hs module is the adapter on the usb_host_hs ports
+ */
+
+static struct omap_hwmod_class_sysconfig omap54xx_usb_tll_hs_sysc = {
+	.rev_offs	= 0x0000,
+	.sysc_offs	= 0x0010,
+	.syss_offs	= 0x0014,
+	.sysc_flags	= (SYSC_HAS_AUTOIDLE | SYSC_HAS_CLOCKACTIVITY |
+			   SYSC_HAS_ENAWAKEUP | SYSC_HAS_SIDLEMODE |
+			   SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class omap54xx_usb_tll_hs_hwmod_class = {
+	.name	= "usb_tll_hs",
+	.sysc	= &omap54xx_usb_tll_hs_sysc,
+};
+
+static struct omap_hwmod omap54xx_usb_tll_hs_hwmod = {
+	.name		= "usb_tll_hs",
+	.class		= &omap54xx_usb_tll_hs_hwmod_class,
+	.clkdm_name	= "l3init_clkdm",
+	.main_clk	= "l4_root_clk_div",
+	.prcm = {
+		.omap4 = {
+			.clkctrl_offs = OMAP54XX_CM_L3INIT_USB_TLL_HS_CLKCTRL_OFFSET,
+			.context_offs = OMAP54XX_RM_L3INIT_USB_TLL_HS_CONTEXT_OFFSET,
+			.modulemode   = MODULEMODE_HWCTRL,
+		},
+	},
+};
+
 /*
  * 'usb_otg_ss' class
  * 2.0 super speed (usb_otg_ss) controller
@@ -2096,6 +2213,22 @@ static struct omap_hwmod_ocp_if omap54xx_l4_per__uart6 = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
+/* l4_cfg -> usb_host_hs */
+static struct omap_hwmod_ocp_if omap54xx_l4_cfg__usb_host_hs = {
+	.master		= &omap54xx_l4_cfg_hwmod,
+	.slave		= &omap54xx_usb_host_hs_hwmod,
+	.clk		= "l3_iclk_div",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l4_cfg -> usb_tll_hs */
+static struct omap_hwmod_ocp_if omap54xx_l4_cfg__usb_tll_hs = {
+	.master		= &omap54xx_l4_cfg_hwmod,
+	.slave		= &omap54xx_usb_tll_hs_hwmod,
+	.clk		= "l4_root_clk_div",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
 /* l4_cfg -> usb_otg_ss */
 static struct omap_hwmod_ocp_if omap54xx_l4_cfg__usb_otg_ss = {
 	.master		= &omap54xx_l4_cfg_hwmod,
@@ -2180,6 +2313,8 @@ static struct omap_hwmod_ocp_if *omap54xx_hwmod_ocp_ifs[] __initdata = {
 	&omap54xx_l4_per__uart4,
 	&omap54xx_l4_per__uart5,
 	&omap54xx_l4_per__uart6,
+	&omap54xx_l4_cfg__usb_host_hs,
+	&omap54xx_l4_cfg__usb_tll_hs,
 	&omap54xx_l4_cfg__usb_otg_ss,
 	&omap54xx_l4_wkup__wd_timer2,
 	NULL,
-- 
cgit 


From f69b923a758f598fd6bb69e57564b59506f4f1fc Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 8 Oct 2013 21:47:29 -0700
Subject: udp: fix a typo in __udp4_lib_mcast_demux_lookup

At this point sk might contain garbage.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/udp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 4226c53daaed..9f27bb800607 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1847,7 +1847,7 @@ begin:
 		if (count != 1 ||
 		    unlikely(!atomic_inc_not_zero_hint(&result->sk_refcnt, 2)))
 			result = NULL;
-		else if (unlikely(!__udp_is_mcast_sock(net, sk,
+		else if (unlikely(!__udp_is_mcast_sock(net, result,
 						       loc_port, loc_addr,
 						       rmt_port, rmt_addr,
 						       dif, hnum))) {
-- 
cgit 


From 1232e3807f597748d437ab8680873af21fa81da9 Mon Sep 17 00:00:00 2001
From: Davidlohr Bueso <davidlohr@hp.com>
Date: Tue, 8 Oct 2013 20:37:16 -0700
Subject: lockstat: Report avg wait and hold times

While both the nr and total times are showed, having the avg
lock hold and wait times show in the report is quite useful when
working on performance related issues. Furthermore, I find
myself constantly doing the calculations manually.

In addition, some of the documentation examples were changed to
easily update them to show the two new columns. No textual
change otherwise, as descriptions match the lockstat output.

Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: aswin@hp.com
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1380746928.2313.14.camel@buesod1.americas.hpqcorp.net
[ Fixlets: changed a seq_printf() to seq_puts(), converted spaces to tabs. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 Documentation/lockstat.txt | 123 ++++++++++++++++++++++-----------------------
 kernel/lockdep_proc.c      |  15 +++---
 2 files changed, 70 insertions(+), 68 deletions(-)

diff --git a/Documentation/lockstat.txt b/Documentation/lockstat.txt
index dd2f7b26ca30..72d010689751 100644
--- a/Documentation/lockstat.txt
+++ b/Documentation/lockstat.txt
@@ -46,16 +46,14 @@ With these hooks we provide the following statistics:
  contentions       - number of lock acquisitions that had to wait
  wait time min     - shortest (non-0) time we ever had to wait for a lock
            max     - longest time we ever had to wait for a lock
-           total   - total time we spend waiting on this lock
+	   total   - total time we spend waiting on this lock
+	   avg     - average time spent waiting on this lock
  acq-bounces       - number of lock acquisitions that involved x-cpu data
  acquisitions      - number of times we took the lock
  hold time min     - shortest (non-0) time we ever held the lock
-           max     - longest time we ever held the lock
-           total   - total time this lock was held
-
-From these number various other statistics can be derived, such as:
-
- hold time average = hold time total / acquisitions
+	   max     - longest time we ever held the lock
+	   total   - total time this lock was held
+	   avg     - average time this lock was held
 
 These numbers are gathered per lock class, per read/write state (when
 applicable).
@@ -84,37 +82,38 @@ Look at the current lock statistics:
 
 # less /proc/lock_stat
 
-01 lock_stat version 0.3
-02 -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
-03                               class name    con-bounces    contentions   waittime-min   waittime-max waittime-total    acq-bounces   acquisitions   holdtime-min   holdtime-max holdtime-total
-04 -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+01 lock_stat version 0.4
+02-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
+03                              class name    con-bounces    contentions   waittime-min   waittime-max waittime-total   waittime-avg    acq-bounces   acquisitions   holdtime-min   holdtime-max holdtime-total   holdtime-avg
+04-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 05
-06                          &mm->mmap_sem-W:           233            538 18446744073708       22924.27      607243.51           1342          45806           1.71        8595.89     1180582.34
-07                          &mm->mmap_sem-R:           205            587 18446744073708       28403.36      731975.00           1940         412426           0.58      187825.45     6307502.88
-08                          ---------------
-09                            &mm->mmap_sem            487          [<ffffffff8053491f>] do_page_fault+0x466/0x928
-10                            &mm->mmap_sem            179          [<ffffffff802a6200>] sys_mprotect+0xcd/0x21d
-11                            &mm->mmap_sem            279          [<ffffffff80210a57>] sys_mmap+0x75/0xce
-12                            &mm->mmap_sem             76          [<ffffffff802a490b>] sys_munmap+0x32/0x59
-13                          ---------------
-14                            &mm->mmap_sem            270          [<ffffffff80210a57>] sys_mmap+0x75/0xce
-15                            &mm->mmap_sem            431          [<ffffffff8053491f>] do_page_fault+0x466/0x928
-16                            &mm->mmap_sem            138          [<ffffffff802a490b>] sys_munmap+0x32/0x59
-17                            &mm->mmap_sem            145          [<ffffffff802a6200>] sys_mprotect+0xcd/0x21d
+06                         &mm->mmap_sem-W:            46             84           0.26         939.10       16371.53         194.90          47291        2922365           0.16     2220301.69 17464026916.32        5975.99
+07                         &mm->mmap_sem-R:            37            100           1.31      299502.61      325629.52        3256.30         212344       34316685           0.10        7744.91    95016910.20           2.77
+08                         ---------------
+09                           &mm->mmap_sem              1          [<ffffffff811502a7>] khugepaged_scan_mm_slot+0x57/0x280
+19                           &mm->mmap_sem             96          [<ffffffff815351c4>] __do_page_fault+0x1d4/0x510
+11                           &mm->mmap_sem             34          [<ffffffff81113d77>] vm_mmap_pgoff+0x87/0xd0
+12                           &mm->mmap_sem             17          [<ffffffff81127e71>] vm_munmap+0x41/0x80
+13                         ---------------
+14                           &mm->mmap_sem              1          [<ffffffff81046fda>] dup_mmap+0x2a/0x3f0
+15                           &mm->mmap_sem             60          [<ffffffff81129e29>] SyS_mprotect+0xe9/0x250
+16                           &mm->mmap_sem             41          [<ffffffff815351c4>] __do_page_fault+0x1d4/0x510
+17                           &mm->mmap_sem             68          [<ffffffff81113d77>] vm_mmap_pgoff+0x87/0xd0
 18
-19 ...............................................................................................................................................................................................
+19.............................................................................................................................................................................................................................
 20
-21                              dcache_lock:           621            623           0.52         118.26        1053.02           6745          91930           0.29         316.29      118423.41
-22                              -----------
-23                              dcache_lock            179          [<ffffffff80378274>] _atomic_dec_and_lock+0x34/0x54
-24                              dcache_lock            113          [<ffffffff802cc17b>] d_alloc+0x19a/0x1eb
-25                              dcache_lock             99          [<ffffffff802ca0dc>] d_rehash+0x1b/0x44
-26                              dcache_lock            104          [<ffffffff802cbca0>] d_instantiate+0x36/0x8a
-27                              -----------
-28                              dcache_lock            192          [<ffffffff80378274>] _atomic_dec_and_lock+0x34/0x54
-29                              dcache_lock             98          [<ffffffff802ca0dc>] d_rehash+0x1b/0x44
-30                              dcache_lock             72          [<ffffffff802cc17b>] d_alloc+0x19a/0x1eb
-31                              dcache_lock            112          [<ffffffff802cbca0>] d_instantiate+0x36/0x8a
+21                         unix_table_lock:           110            112           0.21          49.24         163.91           1.46          21094          66312           0.12         624.42       31589.81           0.48
+22                         ---------------
+23                         unix_table_lock             45          [<ffffffff8150ad8e>] unix_create1+0x16e/0x1b0
+24                         unix_table_lock             47          [<ffffffff8150b111>] unix_release_sock+0x31/0x250
+25                         unix_table_lock             15          [<ffffffff8150ca37>] unix_find_other+0x117/0x230
+26                         unix_table_lock              5          [<ffffffff8150a09f>] unix_autobind+0x11f/0x1b0
+27                         ---------------
+28                         unix_table_lock             39          [<ffffffff8150b111>] unix_release_sock+0x31/0x250
+29                         unix_table_lock             49          [<ffffffff8150ad8e>] unix_create1+0x16e/0x1b0
+30                         unix_table_lock             20          [<ffffffff8150ca37>] unix_find_other+0x117/0x230
+31                         unix_table_lock              4          [<ffffffff8150a09f>] unix_autobind+0x11f/0x1b0
+
 
 This excerpt shows the first two lock class statistics. Line 01 shows the
 output version - each time the format changes this will be updated. Line 02-04
@@ -131,30 +130,30 @@ The integer part of the time values is in us.
 
 Dealing with nested locks, subclasses may appear:
 
-32...............................................................................................................................................................................................
+32...........................................................................................................................................................................................................................
 33
-34                               &rq->lock:         13128          13128           0.43         190.53      103881.26          97454        3453404           0.00         401.11    13224683.11
+34                               &rq->lock:       13128          13128           0.43         190.53      103881.26           7.91          97454        3453404           0.00         401.11    13224683.11           3.82
 35                               ---------
-36                               &rq->lock            645          [<ffffffff8103bfc4>] task_rq_lock+0x43/0x75
-37                               &rq->lock            297          [<ffffffff8104ba65>] try_to_wake_up+0x127/0x25a
-38                               &rq->lock            360          [<ffffffff8103c4c5>] select_task_rq_fair+0x1f0/0x74a
-39                               &rq->lock            428          [<ffffffff81045f98>] scheduler_tick+0x46/0x1fb
+36                               &rq->lock          645          [<ffffffff8103bfc4>] task_rq_lock+0x43/0x75
+37                               &rq->lock          297          [<ffffffff8104ba65>] try_to_wake_up+0x127/0x25a
+38                               &rq->lock          360          [<ffffffff8103c4c5>] select_task_rq_fair+0x1f0/0x74a
+39                               &rq->lock          428          [<ffffffff81045f98>] scheduler_tick+0x46/0x1fb
 40                               ---------
-41                               &rq->lock             77          [<ffffffff8103bfc4>] task_rq_lock+0x43/0x75
-42                               &rq->lock            174          [<ffffffff8104ba65>] try_to_wake_up+0x127/0x25a
-43                               &rq->lock           4715          [<ffffffff8103ed4b>] double_rq_lock+0x42/0x54
-44                               &rq->lock            893          [<ffffffff81340524>] schedule+0x157/0x7b8
+41                               &rq->lock           77          [<ffffffff8103bfc4>] task_rq_lock+0x43/0x75
+42                               &rq->lock          174          [<ffffffff8104ba65>] try_to_wake_up+0x127/0x25a
+43                               &rq->lock         4715          [<ffffffff8103ed4b>] double_rq_lock+0x42/0x54
+44                               &rq->lock          893          [<ffffffff81340524>] schedule+0x157/0x7b8
 45
-46...............................................................................................................................................................................................
+46...........................................................................................................................................................................................................................
 47
-48                             &rq->lock/1:         11526          11488           0.33         388.73      136294.31          21461          38404           0.00          37.93      109388.53
+48                             &rq->lock/1:        1526          11488           0.33         388.73      136294.31          11.86          21461          38404           0.00          37.93      109388.53           2.84
 49                             -----------
-50                             &rq->lock/1          11526          [<ffffffff8103ed58>] double_rq_lock+0x4f/0x54
+50                             &rq->lock/1        11526          [<ffffffff8103ed58>] double_rq_lock+0x4f/0x54
 51                             -----------
-52                             &rq->lock/1           5645          [<ffffffff8103ed4b>] double_rq_lock+0x42/0x54
-53                             &rq->lock/1           1224          [<ffffffff81340524>] schedule+0x157/0x7b8
-54                             &rq->lock/1           4336          [<ffffffff8103ed58>] double_rq_lock+0x4f/0x54
-55                             &rq->lock/1            181          [<ffffffff8104ba65>] try_to_wake_up+0x127/0x25a
+52                             &rq->lock/1         5645          [<ffffffff8103ed4b>] double_rq_lock+0x42/0x54
+53                             &rq->lock/1         1224          [<ffffffff81340524>] schedule+0x157/0x7b8
+54                             &rq->lock/1         4336          [<ffffffff8103ed58>] double_rq_lock+0x4f/0x54
+55                             &rq->lock/1          181          [<ffffffff8104ba65>] try_to_wake_up+0x127/0x25a
 
 Line 48 shows statistics for the second subclass (/1) of &rq->lock class
 (subclass starts from 0), since in this case, as line 50 suggests,
@@ -163,16 +162,16 @@ double_rq_lock actually acquires a nested lock of two spinlocks.
 View the top contending locks:
 
 # grep : /proc/lock_stat | head
-              &inode->i_data.tree_lock-W:            15          21657           0.18     1093295.30 11547131054.85             58          10415           0.16          87.51        6387.60
-              &inode->i_data.tree_lock-R:             0              0           0.00           0.00           0.00          23302         231198           0.25           8.45       98023.38
-                             dcache_lock:          1037           1161           0.38          45.32         774.51           6611         243371           0.15         306.48       77387.24
-                         &inode->i_mutex:           161            286 18446744073709       62882.54     1244614.55           3653          20598 18446744073709       62318.60     1693822.74
-                         &zone->lru_lock:            94             94           0.53           7.33          92.10           4366          32690           0.29          59.81       16350.06
-              &inode->i_data.i_mmap_mutex:            79             79           0.40           3.77          53.03          11779          87755           0.28         116.93       29898.44
-                        &q->__queue_lock:            48             50           0.52          31.62          86.31            774          13131           0.17         113.08       12277.52
-                        &rq->rq_lock_key:            43             47           0.74          68.50         170.63           3706          33929           0.22         107.99       17460.62
-                      &rq->rq_lock_key#2:            39             46           0.75           6.68          49.03           2979          32292           0.17         125.17       17137.63
-                         tasklist_lock-W:            15             15           1.45          10.87          32.70           1201           7390           0.58          62.55       13648.47
+			clockevents_lock:       2926159        2947636           0.15       46882.81  1784540466.34         605.41        3381345        3879161           0.00        2260.97    53178395.68          13.71
+		     tick_broadcast_lock:        346460         346717           0.18        2257.43    39364622.71         113.54        3642919        4242696           0.00        2263.79    49173646.60          11.59
+		  &mapping->i_mmap_mutex:        203896         203899           3.36      645530.05 31767507988.39      155800.21        3361776        8893984           0.17        2254.15    14110121.02           1.59
+			       &rq->lock:        135014         136909           0.18         606.09      842160.68           6.15        1540728       10436146           0.00         728.72    17606683.41           1.69
+	       &(&zone->lru_lock)->rlock:         93000          94934           0.16          59.18      188253.78           1.98        1199912        3809894           0.15         391.40     3559518.81           0.93
+			 tasklist_lock-W:         40667          41130           0.23        1189.42      428980.51          10.43         270278         510106           0.16         653.51     3939674.91           7.72
+			 tasklist_lock-R:         21298          21305           0.20        1310.05      215511.12          10.12         186204         241258           0.14        1162.33     1179779.23           4.89
+			      rcu_node_1:         47656          49022           0.16         635.41      193616.41           3.95         844888        1865423           0.00         764.26     1656226.96           0.89
+       &(&dentry->d_lockref.lock)->rlock:         39791          40179           0.15        1302.08       88851.96           2.21        2790851       12527025           0.10        1910.75     3379714.27           0.27
+			      rcu_node_0:         29203          30064           0.16         786.55     1555573.00          51.74          88963         244254           0.00         398.87      428872.51           1.76
 
 Clear the statistics:
 
diff --git a/kernel/lockdep_proc.c b/kernel/lockdep_proc.c
index b2c71c5873e4..09220656d888 100644
--- a/kernel/lockdep_proc.c
+++ b/kernel/lockdep_proc.c
@@ -421,6 +421,7 @@ static void seq_lock_time(struct seq_file *m, struct lock_time *lt)
 	seq_time(m, lt->min);
 	seq_time(m, lt->max);
 	seq_time(m, lt->total);
+	seq_time(m, lt->nr ? do_div(lt->total, lt->nr) : 0);
 }
 
 static void seq_stats(struct seq_file *m, struct lock_stat_data *data)
@@ -518,20 +519,20 @@ static void seq_stats(struct seq_file *m, struct lock_stat_data *data)
 	}
 	if (i) {
 		seq_puts(m, "\n");
-		seq_line(m, '.', 0, 40 + 1 + 10 * (14 + 1));
+		seq_line(m, '.', 0, 40 + 1 + 12 * (14 + 1));
 		seq_puts(m, "\n");
 	}
 }
 
 static void seq_header(struct seq_file *m)
 {
-	seq_printf(m, "lock_stat version 0.3\n");
+	seq_puts(m, "lock_stat version 0.4\n");
 
 	if (unlikely(!debug_locks))
 		seq_printf(m, "*WARNING* lock debugging disabled!! - possibly due to a lockdep warning\n");
 
-	seq_line(m, '-', 0, 40 + 1 + 10 * (14 + 1));
-	seq_printf(m, "%40s %14s %14s %14s %14s %14s %14s %14s %14s "
+	seq_line(m, '-', 0, 40 + 1 + 12 * (14 + 1));
+	seq_printf(m, "%40s %14s %14s %14s %14s %14s %14s %14s %14s %14s %14s "
 			"%14s %14s\n",
 			"class name",
 			"con-bounces",
@@ -539,12 +540,14 @@ static void seq_header(struct seq_file *m)
 			"waittime-min",
 			"waittime-max",
 			"waittime-total",
+			"waittime-avg",
 			"acq-bounces",
 			"acquisitions",
 			"holdtime-min",
 			"holdtime-max",
-			"holdtime-total");
-	seq_line(m, '-', 0, 40 + 1 + 10 * (14 + 1));
+			"holdtime-total",
+			"holdtime-avg");
+	seq_line(m, '-', 0, 40 + 1 + 12 * (14 + 1));
 	seq_printf(m, "\n");
 }
 
-- 
cgit 


From 89fe808ae777728da6e1d78b7d13562792310d17 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 12:07:11 +0200
Subject: tools/perf: Standardize feature support define names to:
 HAVE_{FEATURE}_SUPPORT

Standardize all the feature flags based on the HAVE_{FEATURE}_SUPPORT naming convention:

		HAVE_ARCH_X86_64_SUPPORT
		HAVE_BACKTRACE_SUPPORT
		HAVE_CPLUS_DEMANGLE_SUPPORT
		HAVE_DWARF_SUPPORT
		HAVE_ELF_GETPHDRNUM_SUPPORT
		HAVE_GTK2_SUPPORT
		HAVE_GTK_INFO_BAR_SUPPORT
		HAVE_LIBAUDIT_SUPPORT
		HAVE_LIBELF_MMAP_SUPPORT
		HAVE_LIBELF_SUPPORT
		HAVE_LIBNUMA_SUPPORT
		HAVE_LIBUNWIND_SUPPORT
		HAVE_ON_EXIT_SUPPORT
		HAVE_PERF_REGS_SUPPORT
		HAVE_SLANG_SUPPORT
		HAVE_STRLCPY_SUPPORT

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-u3zvqejddfZhtrbYbfhi3spa@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/arch/x86/include/perf_regs.h |  6 ++--
 tools/perf/arch/x86/util/unwind.c       |  4 +--
 tools/perf/bench/mem-memcpy-arch.h      |  2 +-
 tools/perf/bench/mem-memcpy.c           |  2 +-
 tools/perf/bench/mem-memset-arch.h      |  2 +-
 tools/perf/bench/mem-memset.c           |  2 +-
 tools/perf/builtin-bench.c              |  4 +--
 tools/perf/builtin-inject.c             |  2 +-
 tools/perf/builtin-probe.c              | 14 ++++-----
 tools/perf/builtin-record.c             | 12 ++++----
 tools/perf/config/Makefile              | 54 ++++++++++++++++-----------------
 tools/perf/perf.c                       |  4 +--
 tools/perf/ui/gtk/browser.c             |  2 +-
 tools/perf/ui/gtk/gtk.h                 |  4 +--
 tools/perf/ui/gtk/util.c                |  4 +--
 tools/perf/ui/ui.h                      |  4 +--
 tools/perf/util/annotate.h              |  4 +--
 tools/perf/util/cache.h                 |  2 +-
 tools/perf/util/generate-cmdlist.sh     |  4 +--
 tools/perf/util/hist.h                  |  4 +--
 tools/perf/util/include/dwarf-regs.h    |  2 +-
 tools/perf/util/map.c                   |  2 +-
 tools/perf/util/path.c                  |  2 +-
 tools/perf/util/perf_regs.h             |  4 +--
 tools/perf/util/probe-event.c           |  4 +--
 tools/perf/util/probe-finder.h          |  4 +--
 tools/perf/util/symbol-elf.c            |  2 +-
 tools/perf/util/symbol.h                |  8 ++---
 tools/perf/util/unwind.h                |  4 +--
 tools/perf/util/util.c                  |  4 +--
 30 files changed, 86 insertions(+), 86 deletions(-)

diff --git a/tools/perf/arch/x86/include/perf_regs.h b/tools/perf/arch/x86/include/perf_regs.h
index 7fcdcdbee917..e84ca76aae77 100644
--- a/tools/perf/arch/x86/include/perf_regs.h
+++ b/tools/perf/arch/x86/include/perf_regs.h
@@ -5,7 +5,7 @@
 #include "../../util/types.h"
 #include <asm/perf_regs.h>
 
-#ifndef ARCH_X86_64
+#ifndef HAVE_ARCH_X86_64_SUPPORT
 #define PERF_REGS_MASK ((1ULL << PERF_REG_X86_32_MAX) - 1)
 #else
 #define REG_NOSUPPORT ((1ULL << PERF_REG_X86_DS) | \
@@ -52,7 +52,7 @@ static inline const char *perf_reg_name(int id)
 		return "FS";
 	case PERF_REG_X86_GS:
 		return "GS";
-#ifdef ARCH_X86_64
+#ifdef HAVE_ARCH_X86_64_SUPPORT
 	case PERF_REG_X86_R8:
 		return "R8";
 	case PERF_REG_X86_R9:
@@ -69,7 +69,7 @@ static inline const char *perf_reg_name(int id)
 		return "R14";
 	case PERF_REG_X86_R15:
 		return "R15";
-#endif /* ARCH_X86_64 */
+#endif /* HAVE_ARCH_X86_64_SUPPORT */
 	default:
 		return NULL;
 	}
diff --git a/tools/perf/arch/x86/util/unwind.c b/tools/perf/arch/x86/util/unwind.c
index 78d956eff96f..456a88cf5b37 100644
--- a/tools/perf/arch/x86/util/unwind.c
+++ b/tools/perf/arch/x86/util/unwind.c
@@ -4,7 +4,7 @@
 #include "perf_regs.h"
 #include "../../util/unwind.h"
 
-#ifdef ARCH_X86_64
+#ifdef HAVE_ARCH_X86_64_SUPPORT
 int unwind__arch_reg_id(int regnum)
 {
 	int id;
@@ -108,4 +108,4 @@ int unwind__arch_reg_id(int regnum)
 
 	return id;
 }
-#endif /* ARCH_X86_64 */
+#endif /* HAVE_ARCH_X86_64_SUPPORT */
diff --git a/tools/perf/bench/mem-memcpy-arch.h b/tools/perf/bench/mem-memcpy-arch.h
index a72e36cb5394..57b4ed871459 100644
--- a/tools/perf/bench/mem-memcpy-arch.h
+++ b/tools/perf/bench/mem-memcpy-arch.h
@@ -1,5 +1,5 @@
 
-#ifdef ARCH_X86_64
+#ifdef HAVE_ARCH_X86_64_SUPPORT
 
 #define MEMCPY_FN(fn, name, desc)		\
 	extern void *fn(void *, const void *, size_t);
diff --git a/tools/perf/bench/mem-memcpy.c b/tools/perf/bench/mem-memcpy.c
index 8cdca43016b2..5ce71d3b72cf 100644
--- a/tools/perf/bench/mem-memcpy.c
+++ b/tools/perf/bench/mem-memcpy.c
@@ -58,7 +58,7 @@ struct routine routines[] = {
 	{ "default",
 	  "Default memcpy() provided by glibc",
 	  memcpy },
-#ifdef ARCH_X86_64
+#ifdef HAVE_ARCH_X86_64_SUPPORT
 
 #define MEMCPY_FN(fn, name, desc) { name, desc, fn },
 #include "mem-memcpy-x86-64-asm-def.h"
diff --git a/tools/perf/bench/mem-memset-arch.h b/tools/perf/bench/mem-memset-arch.h
index a040fa77665b..633800cb0dcb 100644
--- a/tools/perf/bench/mem-memset-arch.h
+++ b/tools/perf/bench/mem-memset-arch.h
@@ -1,5 +1,5 @@
 
-#ifdef ARCH_X86_64
+#ifdef HAVE_ARCH_X86_64_SUPPORT
 
 #define MEMSET_FN(fn, name, desc)		\
 	extern void *fn(void *, int, size_t);
diff --git a/tools/perf/bench/mem-memset.c b/tools/perf/bench/mem-memset.c
index 4a2f12081964..9af79d2b18e5 100644
--- a/tools/perf/bench/mem-memset.c
+++ b/tools/perf/bench/mem-memset.c
@@ -58,7 +58,7 @@ static const struct routine routines[] = {
 	{ "default",
 	  "Default memset() provided by glibc",
 	  memset },
-#ifdef ARCH_X86_64
+#ifdef HAVE_ARCH_X86_64_SUPPORT
 
 #define MEMSET_FN(fn, name, desc) { name, desc, fn },
 #include "mem-memset-x86-64-asm-def.h"
diff --git a/tools/perf/builtin-bench.c b/tools/perf/builtin-bench.c
index 77298bf892b8..33af80fa49cf 100644
--- a/tools/perf/builtin-bench.c
+++ b/tools/perf/builtin-bench.c
@@ -35,7 +35,7 @@ struct bench_suite {
 /* sentinel: easy for help */
 #define suite_all { "all", "Test all benchmark suites", NULL }
 
-#ifdef LIBNUMA_SUPPORT
+#ifdef HAVE_LIBNUMA_SUPPORT
 static struct bench_suite numa_suites[] = {
 	{ "mem",
 	  "Benchmark for NUMA workloads",
@@ -80,7 +80,7 @@ struct bench_subsys {
 };
 
 static struct bench_subsys subsystems[] = {
-#ifdef LIBNUMA_SUPPORT
+#ifdef HAVE_LIBNUMA_SUPPORT
 	{ "numa",
 	  "NUMA scheduling and MM behavior",
 	  numa_suites },
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index afe377b2884f..f51a9637f69b 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -231,7 +231,7 @@ static int perf_event__inject_buildid(struct perf_tool *tool,
 				 * account this as unresolved.
 				 */
 			} else {
-#ifdef LIBELF_SUPPORT
+#ifdef HAVE_LIBELF_SUPPORT
 				pr_warning("no symbols found in %s, maybe "
 					   "install a debug package?\n",
 					   al.map->dso->long_name);
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index e8a66f9a6715..89acc17cf2a0 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -173,7 +173,7 @@ static int opt_set_target(const struct option *opt, const char *str,
 	if  (str && !params.target) {
 		if (!strcmp(opt->long_name, "exec"))
 			params.uprobes = true;
-#ifdef DWARF_SUPPORT
+#ifdef HAVE_DWARF_SUPPORT
 		else if (!strcmp(opt->long_name, "module"))
 			params.uprobes = false;
 #endif
@@ -187,7 +187,7 @@ static int opt_set_target(const struct option *opt, const char *str,
 	return ret;
 }
 
-#ifdef DWARF_SUPPORT
+#ifdef HAVE_DWARF_SUPPORT
 static int opt_show_lines(const struct option *opt __maybe_unused,
 			  const char *str, int unset __maybe_unused)
 {
@@ -257,7 +257,7 @@ int cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
 		"perf probe [<options>] --add 'PROBEDEF' [--add 'PROBEDEF' ...]",
 		"perf probe [<options>] --del '[GROUP:]EVENT' ...",
 		"perf probe --list",
-#ifdef DWARF_SUPPORT
+#ifdef HAVE_DWARF_SUPPORT
 		"perf probe [<options>] --line 'LINEDESC'",
 		"perf probe [<options>] --vars 'PROBEPOINT'",
 #endif
@@ -271,7 +271,7 @@ int cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
 	OPT_CALLBACK('d', "del", NULL, "[GROUP:]EVENT", "delete a probe event.",
 		opt_del_probe_event),
 	OPT_CALLBACK('a', "add", NULL,
-#ifdef DWARF_SUPPORT
+#ifdef HAVE_DWARF_SUPPORT
 		"[EVENT=]FUNC[@SRC][+OFF|%return|:RL|;PT]|SRC:AL|SRC;PT"
 		" [[NAME=]ARG ...]",
 #else
@@ -283,7 +283,7 @@ int cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
 		"\t\tFUNC:\tFunction name\n"
 		"\t\tOFF:\tOffset from function entry (in byte)\n"
 		"\t\t%return:\tPut the probe at function return\n"
-#ifdef DWARF_SUPPORT
+#ifdef HAVE_DWARF_SUPPORT
 		"\t\tSRC:\tSource code path\n"
 		"\t\tRL:\tRelative line number from function entry.\n"
 		"\t\tAL:\tAbsolute line number in file.\n"
@@ -296,7 +296,7 @@ int cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
 		opt_add_probe_event),
 	OPT_BOOLEAN('f', "force", &params.force_add, "forcibly add events"
 		    " with existing name"),
-#ifdef DWARF_SUPPORT
+#ifdef HAVE_DWARF_SUPPORT
 	OPT_CALLBACK('L', "line", NULL,
 		     "FUNC[:RLN[+NUM|-RLN2]]|SRC:ALN[+NUM|-ALN2]",
 		     "Show source code lines.", opt_show_lines),
@@ -408,7 +408,7 @@ int cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
 		return ret;
 	}
 
-#ifdef DWARF_SUPPORT
+#ifdef HAVE_DWARF_SUPPORT
 	if (params.show_lines && !params.uprobes) {
 		if (params.mod_events) {
 			pr_err("  Error: Don't use --line with"
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index a78db3f31b25..cf36ba2a1591 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -29,7 +29,7 @@
 #include <sched.h>
 #include <sys/mman.h>
 
-#ifndef HAVE_ON_EXIT
+#ifndef HAVE_ON_EXIT_SUPPORT
 #ifndef ATEXIT_MAX
 #define ATEXIT_MAX 32
 #endif
@@ -687,7 +687,7 @@ error:
 	return ret;
 }
 
-#ifdef LIBUNWIND_SUPPORT
+#ifdef HAVE_LIBUNWIND_SUPPORT
 static int get_stack_size(char *str, unsigned long *_size)
 {
 	char *endptr;
@@ -713,7 +713,7 @@ static int get_stack_size(char *str, unsigned long *_size)
 	       max_size, str);
 	return -1;
 }
-#endif /* LIBUNWIND_SUPPORT */
+#endif /* HAVE_LIBUNWIND_SUPPORT */
 
 int record_parse_callchain_opt(const struct option *opt,
 			       const char *arg, int unset)
@@ -751,7 +751,7 @@ int record_parse_callchain_opt(const struct option *opt,
 				       "needed for -g fp\n");
 			break;
 
-#ifdef LIBUNWIND_SUPPORT
+#ifdef HAVE_LIBUNWIND_SUPPORT
 		/* Dwarf style */
 		} else if (!strncmp(name, "dwarf", sizeof("dwarf"))) {
 			const unsigned long default_stack_dump_size = 8192;
@@ -771,7 +771,7 @@ int record_parse_callchain_opt(const struct option *opt,
 			if (!ret)
 				pr_debug("callchain: stack dump size %d\n",
 					 opts->stack_dump_size);
-#endif /* LIBUNWIND_SUPPORT */
+#endif /* HAVE_LIBUNWIND_SUPPORT */
 		} else {
 			pr_err("callchain: Unknown -g option "
 			       "value: %s\n", arg);
@@ -818,7 +818,7 @@ static struct perf_record record = {
 
 #define CALLCHAIN_HELP "do call-graph (stack chain/backtrace) recording: "
 
-#ifdef LIBUNWIND_SUPPORT
+#ifdef HAVE_LIBUNWIND_SUPPORT
 const char record_callchain_help[] = CALLCHAIN_HELP "[fp] dwarf";
 #else
 const char record_callchain_help[] = CALLCHAIN_HELP "[fp]";
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 5f6f9b3271bb..34be7432d567 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -23,7 +23,7 @@ ifeq ($(ARCH),x86_64)
   endif
   ifeq (${IS_X86_64}, 1)
     RAW_ARCH := x86_64
-    CFLAGS += -DARCH_X86_64
+    CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT
     ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
   endif
   NO_PERF_REGS := 0
@@ -31,7 +31,7 @@ ifeq ($(ARCH),x86_64)
 endif
 
 ifeq ($(NO_PERF_REGS),0)
-  CFLAGS += -DHAVE_PERF_REGS
+  CFLAGS += -DHAVE_PERF_REGS_SUPPORT
 endif
 
 ifeq ($(src-perf),)
@@ -175,13 +175,13 @@ endif # SOURCE_LIBELF
 endif # NO_LIBELF
 
 ifndef NO_LIBELF
-CFLAGS += -DLIBELF_SUPPORT
+CFLAGS += -DHAVE_LIBELF_SUPPORT
 FLAGS_LIBELF=$(CFLAGS) $(LDFLAGS) $(EXTLIBS)
-ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DLIBELF_MMAP),y)
-  CFLAGS += -DLIBELF_MMAP
+ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DHAVE_LIBELF_MMAP_SUPPORT),y)
+  CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
 endif
-ifeq ($(call try-cc,$(SOURCE_ELF_GETPHDRNUM),$(FLAGS_LIBELF),-DHAVE_ELF_GETPHDRNUM),y)
-  CFLAGS += -DHAVE_ELF_GETPHDRNUM
+ifeq ($(call try-cc,$(SOURCE_ELF_GETPHDRNUM),$(FLAGS_LIBELF),-DHAVE_ELF_GETPHDRNUM_SUPPORT),y)
+  CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
 endif
 
 # include ARCH specific config
@@ -192,7 +192,7 @@ ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
   msg := $(warning DWARF register mappings have not been defined for architecture $(ARCH), DWARF support disabled);
   NO_DWARF := 1
 else
-  CFLAGS += -DDWARF_SUPPORT $(LIBDW_CFLAGS)
+  CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
   LDFLAGS += $(LIBDW_LDFLAGS)
   EXTLIBS += -lelf -ldw
 endif # PERF_HAVE_DWARF_REGS
@@ -201,10 +201,10 @@ endif # NO_DWARF
 endif # NO_LIBELF
 
 ifndef NO_LIBELF
-CFLAGS += -DLIBELF_SUPPORT
+CFLAGS += -DHAVE_LIBELF_SUPPORT
 FLAGS_LIBELF=$(CFLAGS) $(LDFLAGS) $(EXTLIBS)
-ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DLIBELF_MMAP),y)
-  CFLAGS += -DLIBELF_MMAP
+ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DHAVE_LIBELF_MMAP_SUPPORT),y)
+  CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
 endif # try-cc
 endif # NO_LIBELF
 
@@ -229,7 +229,7 @@ endif # Libunwind support
 endif # NO_LIBUNWIND
 
 ifndef NO_LIBUNWIND
-  CFLAGS += -DLIBUNWIND_SUPPORT
+  CFLAGS += -DHAVE_LIBUNWIND_SUPPORT
   EXTLIBS += $(LIBUNWIND_LIBS)
   CFLAGS += $(LIBUNWIND_CFLAGS)
   LDFLAGS += $(LIBUNWIND_LDFLAGS)
@@ -241,7 +241,7 @@ ifndef NO_LIBAUDIT
     msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
     NO_LIBAUDIT := 1
   else
-    CFLAGS += -DLIBAUDIT_SUPPORT
+    CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
     EXTLIBS += -laudit
   endif
 endif
@@ -258,7 +258,7 @@ ifndef NO_SLANG
   else
     # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
     CFLAGS += -I/usr/include/slang
-    CFLAGS += -DSLANG_SUPPORT
+    CFLAGS += -DHAVE_SLANG_SUPPORT
     EXTLIBS += -lslang
   endif
 endif
@@ -269,10 +269,10 @@ ifndef NO_GTK2
     msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
     NO_GTK2 := 1
   else
-    ifeq ($(call try-cc,$(SOURCE_GTK2_INFOBAR),$(FLAGS_GTK2),-DHAVE_GTK_INFO_BAR),y)
-      CFLAGS += -DHAVE_GTK_INFO_BAR
+    ifeq ($(call try-cc,$(SOURCE_GTK2_INFOBAR),$(FLAGS_GTK2),-DHAVE_GTK_INFO_BAR_SUPPORT),y)
+      CFLAGS += -DHAVE_GTK_INFO_BAR_SUPPORT
     endif
-    CFLAGS += -DGTK2_SUPPORT
+    CFLAGS += -DHAVE_GTK2_SUPPORT
     CFLAGS += $(shell pkg-config --cflags gtk+-2.0 2>/dev/null)
     EXTLIBS += $(shell pkg-config --libs gtk+-2.0 2>/dev/null)
   endif
@@ -365,9 +365,9 @@ endif
 ifdef NO_DEMANGLE
   CFLAGS += -DNO_DEMANGLE
 else
-  ifdef HAVE_CPLUS_DEMANGLE
+  ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
     EXTLIBS += -liberty
-    CFLAGS += -DHAVE_CPLUS_DEMANGLE
+    CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
   else
     FLAGS_BFD=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) -DPACKAGE='perf' -lbfd
     has_bfd := $(call try-cc,$(SOURCE_BFD),$(FLAGS_BFD),libbfd)
@@ -388,7 +388,7 @@ else
           has_cplus_demangle := $(call try-cc,$(SOURCE_CPLUS_DEMANGLE),$(FLAGS_CPLUS_DEMANGLE),demangle)
           ifeq ($(has_cplus_demangle),y)
             EXTLIBS += -liberty
-            CFLAGS += -DHAVE_CPLUS_DEMANGLE
+            CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
           else
             msg := $(warning No bfd.h/libbfd found, install binutils-dev[el]/zlib-static to gain symbol demangling)
             CFLAGS += -DNO_DEMANGLE
@@ -400,20 +400,20 @@ else
 endif
 
 ifndef NO_STRLCPY
-  ifeq ($(call try-cc,$(SOURCE_STRLCPY),,-DHAVE_STRLCPY),y)
-    CFLAGS += -DHAVE_STRLCPY
+  ifeq ($(call try-cc,$(SOURCE_STRLCPY),,-DHAVE_STRLCPY_SUPPORT),y)
+    CFLAGS += -DHAVE_STRLCPY_SUPPORT
   endif
 endif
 
 ifndef NO_ON_EXIT
-  ifeq ($(call try-cc,$(SOURCE_ON_EXIT),,-DHAVE_ON_EXIT),y)
-    CFLAGS += -DHAVE_ON_EXIT
+  ifeq ($(call try-cc,$(SOURCE_ON_EXIT),,-DHAVE_ON_EXIT_SUPPORT),y)
+    CFLAGS += -DHAVE_ON_EXIT_SUPPORT
   endif
 endif
 
 ifndef NO_BACKTRACE
-  ifeq ($(call try-cc,$(SOURCE_BACKTRACE),,-DBACKTRACE_SUPPORT),y)
-    CFLAGS += -DBACKTRACE_SUPPORT
+  ifeq ($(call try-cc,$(SOURCE_BACKTRACE),,-DHAVE_BACKTRACE_SUPPORT),y)
+    CFLAGS += -DHAVE_BACKTRACE_SUPPORT
   endif
 endif
 
@@ -423,7 +423,7 @@ ifndef NO_LIBNUMA
     msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numa-libs-devel or libnuma-dev);
     NO_LIBNUMA := 1
   else
-    CFLAGS += -DLIBNUMA_SUPPORT
+    CFLAGS += -DHAVE_LIBNUMA_SUPPORT
     EXTLIBS += -lnuma
   endif
 endif
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index 85e1aed95204..245020cc6180 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -49,14 +49,14 @@ static struct cmd_struct commands[] = {
 	{ "version",	cmd_version,	0 },
 	{ "script",	cmd_script,	0 },
 	{ "sched",	cmd_sched,	0 },
-#ifdef LIBELF_SUPPORT
+#ifdef HAVE_LIBELF_SUPPORT
 	{ "probe",	cmd_probe,	0 },
 #endif
 	{ "kmem",	cmd_kmem,	0 },
 	{ "lock",	cmd_lock,	0 },
 	{ "kvm",	cmd_kvm,	0 },
 	{ "test",	cmd_test,	0 },
-#ifdef LIBAUDIT_SUPPORT
+#ifdef HAVE_LIBAUDIT_SUPPORT
 	{ "trace",	cmd_trace,	0 },
 #endif
 	{ "inject",	cmd_inject,	0 },
diff --git a/tools/perf/ui/gtk/browser.c b/tools/perf/ui/gtk/browser.c
index c95012cdb438..c24d91221290 100644
--- a/tools/perf/ui/gtk/browser.c
+++ b/tools/perf/ui/gtk/browser.c
@@ -43,7 +43,7 @@ const char *perf_gtk__get_percent_color(double percent)
 	return NULL;
 }
 
-#ifdef HAVE_GTK_INFO_BAR
+#ifdef HAVE_GTK_INFO_BAR_SUPPORT
 GtkWidget *perf_gtk__setup_info_bar(void)
 {
 	GtkWidget *info_bar;
diff --git a/tools/perf/ui/gtk/gtk.h b/tools/perf/ui/gtk/gtk.h
index 3d96785ef155..a72acbc565e0 100644
--- a/tools/perf/ui/gtk/gtk.h
+++ b/tools/perf/ui/gtk/gtk.h
@@ -12,7 +12,7 @@ struct perf_gtk_context {
 	GtkWidget *main_window;
 	GtkWidget *notebook;
 
-#ifdef HAVE_GTK_INFO_BAR
+#ifdef HAVE_GTK_INFO_BAR_SUPPORT
 	GtkWidget *info_bar;
 	GtkWidget *message_label;
 #endif
@@ -39,7 +39,7 @@ void perf_gtk__resize_window(GtkWidget *window);
 const char *perf_gtk__get_percent_color(double percent);
 GtkWidget *perf_gtk__setup_statusbar(void);
 
-#ifdef HAVE_GTK_INFO_BAR
+#ifdef HAVE_GTK_INFO_BAR_SUPPORT
 GtkWidget *perf_gtk__setup_info_bar(void);
 #else
 static inline GtkWidget *perf_gtk__setup_info_bar(void)
diff --git a/tools/perf/ui/gtk/util.c b/tools/perf/ui/gtk/util.c
index c06942a41c78..696c1fbe4248 100644
--- a/tools/perf/ui/gtk/util.c
+++ b/tools/perf/ui/gtk/util.c
@@ -53,7 +53,7 @@ static int perf_gtk__error(const char *format, va_list args)
 	return 0;
 }
 
-#ifdef HAVE_GTK_INFO_BAR
+#ifdef HAVE_GTK_INFO_BAR_SUPPORT
 static int perf_gtk__warning_info_bar(const char *format, va_list args)
 {
 	char *msg;
@@ -105,7 +105,7 @@ static int perf_gtk__warning_statusbar(const char *format, va_list args)
 
 struct perf_error_ops perf_gtk_eops = {
 	.error		= perf_gtk__error,
-#ifdef HAVE_GTK_INFO_BAR
+#ifdef HAVE_GTK_INFO_BAR_SUPPORT
 	.warning	= perf_gtk__warning_info_bar,
 #else
 	.warning	= perf_gtk__warning_statusbar,
diff --git a/tools/perf/ui/ui.h b/tools/perf/ui/ui.h
index 70cb0d4eb8aa..1349d142a005 100644
--- a/tools/perf/ui/ui.h
+++ b/tools/perf/ui/ui.h
@@ -12,7 +12,7 @@ extern int use_browser;
 void setup_browser(bool fallback_to_pager);
 void exit_browser(bool wait_for_ok);
 
-#ifdef SLANG_SUPPORT
+#ifdef HAVE_SLANG_SUPPORT
 int ui__init(void);
 void ui__exit(bool wait_for_ok);
 #else
@@ -23,7 +23,7 @@ static inline int ui__init(void)
 static inline void ui__exit(bool wait_for_ok __maybe_unused) {}
 #endif
 
-#ifdef GTK2_SUPPORT
+#ifdef HAVE_GTK2_SUPPORT
 int perf_gtk__init(void);
 void perf_gtk__exit(bool wait_for_ok);
 #else
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index af755156d278..f0699e9bcc6f 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -150,7 +150,7 @@ int symbol__tty_annotate(struct symbol *sym, struct map *map,
 			 struct perf_evsel *evsel, bool print_lines,
 			 bool full_paths, int min_pcnt, int max_lines);
 
-#ifdef SLANG_SUPPORT
+#ifdef HAVE_SLANG_SUPPORT
 int symbol__tui_annotate(struct symbol *sym, struct map *map,
 			 struct perf_evsel *evsel,
 			 struct hist_browser_timer *hbt);
@@ -165,7 +165,7 @@ static inline int symbol__tui_annotate(struct symbol *sym __maybe_unused,
 }
 #endif
 
-#ifdef GTK2_SUPPORT
+#ifdef HAVE_GTK2_SUPPORT
 int symbol__gtk_annotate(struct symbol *sym, struct map *map,
 			 struct perf_evsel *evsel,
 			 struct hist_browser_timer *hbt);
diff --git a/tools/perf/util/cache.h b/tools/perf/util/cache.h
index 26e367239873..442953c1ce85 100644
--- a/tools/perf/util/cache.h
+++ b/tools/perf/util/cache.h
@@ -70,7 +70,7 @@ extern char *perf_path(const char *fmt, ...) __attribute__((format (printf, 1, 2
 extern char *perf_pathdup(const char *fmt, ...)
 	__attribute__((format (printf, 1, 2)));
 
-#ifndef HAVE_STRLCPY
+#ifndef HAVE_STRLCPY_SUPPORT
 extern size_t strlcpy(char *dest, const char *src, size_t size);
 #endif
 
diff --git a/tools/perf/util/generate-cmdlist.sh b/tools/perf/util/generate-cmdlist.sh
index 3ac38031d534..36a885d2cd22 100755
--- a/tools/perf/util/generate-cmdlist.sh
+++ b/tools/perf/util/generate-cmdlist.sh
@@ -22,7 +22,7 @@ do
      }' "Documentation/perf-$cmd.txt"
 done
 
-echo "#ifdef LIBELF_SUPPORT"
+echo "#ifdef HAVE_LIBELF_SUPPORT"
 sed -n -e 's/^perf-\([^ 	]*\)[ 	].* full.*/\1/p' command-list.txt |
 sort |
 while read cmd
@@ -35,5 +35,5 @@ do
 	    p
      }' "Documentation/perf-$cmd.txt"
 done
-echo "#endif /* LIBELF_SUPPORT */"
+echo "#endif /* HAVE_LIBELF_SUPPORT */"
 echo "};"
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 6a048c09cd64..ed4f90ebe0d5 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -187,7 +187,7 @@ struct hist_browser_timer {
 	int refresh;
 };
 
-#ifdef SLANG_SUPPORT
+#ifdef HAVE_SLANG_SUPPORT
 #include "../ui/keysyms.h"
 int hist_entry__tui_annotate(struct hist_entry *he, struct perf_evsel *evsel,
 			     struct hist_browser_timer *hbt);
@@ -228,7 +228,7 @@ static inline int script_browse(const char *script_opt __maybe_unused)
 #define K_SWITCH_INPUT_DATA -3000
 #endif
 
-#ifdef GTK2_SUPPORT
+#ifdef HAVE_GTK2_SUPPORT
 int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist, const char *help,
 				  struct hist_browser_timer *hbt __maybe_unused,
 				  float min_pcnt);
diff --git a/tools/perf/util/include/dwarf-regs.h b/tools/perf/util/include/dwarf-regs.h
index cf6727e99c44..8f149655f497 100644
--- a/tools/perf/util/include/dwarf-regs.h
+++ b/tools/perf/util/include/dwarf-regs.h
@@ -1,7 +1,7 @@
 #ifndef _PERF_DWARF_REGS_H_
 #define _PERF_DWARF_REGS_H_
 
-#ifdef DWARF_SUPPORT
+#ifdef HAVE_DWARF_SUPPORT
 const char *get_arch_regstr(unsigned int n);
 #endif
 
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 4f6680d2043b..17ee458a0870 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -172,7 +172,7 @@ int map__load(struct map *map, symbol_filter_t filter)
 		pr_warning(", continuing without symbols\n");
 		return -1;
 	} else if (nr == 0) {
-#ifdef LIBELF_SUPPORT
+#ifdef HAVE_LIBELF_SUPPORT
 		const size_t len = strlen(name);
 		const size_t real_len = len - sizeof(DSO__DELETED);
 
diff --git a/tools/perf/util/path.c b/tools/perf/util/path.c
index a8c49548ca48..f3958743b743 100644
--- a/tools/perf/util/path.c
+++ b/tools/perf/util/path.c
@@ -22,7 +22,7 @@ static const char *get_perf_dir(void)
 	return ".";
 }
 
-#ifndef HAVE_STRLCPY
+#ifndef HAVE_STRLCPY_SUPPORT
 size_t strlcpy(char *dest, const char *src, size_t size)
 {
 	size_t ret = strlen(src);
diff --git a/tools/perf/util/perf_regs.h b/tools/perf/util/perf_regs.h
index 5a4f2b6f3738..a3d42cd74919 100644
--- a/tools/perf/util/perf_regs.h
+++ b/tools/perf/util/perf_regs.h
@@ -1,7 +1,7 @@
 #ifndef __PERF_REGS_H
 #define __PERF_REGS_H
 
-#ifdef HAVE_PERF_REGS
+#ifdef HAVE_PERF_REGS_SUPPORT
 #include <perf_regs.h>
 #else
 #define PERF_REGS_MASK	0
@@ -10,5 +10,5 @@ static inline const char *perf_reg_name(int id __maybe_unused)
 {
 	return NULL;
 }
-#endif /* HAVE_PERF_REGS */
+#endif /* HAVE_PERF_REGS_SUPPORT */
 #endif /* __PERF_REGS_H */
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index aa04bf9c9ad7..779b2dacd43f 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -201,7 +201,7 @@ static int convert_to_perf_probe_point(struct probe_trace_point *tp,
 	return 0;
 }
 
-#ifdef DWARF_SUPPORT
+#ifdef HAVE_DWARF_SUPPORT
 /* Open new debuginfo of given module */
 static struct debuginfo *open_debuginfo(const char *module)
 {
@@ -630,7 +630,7 @@ int show_available_vars(struct perf_probe_event *pevs, int npevs,
 	return ret;
 }
 
-#else	/* !DWARF_SUPPORT */
+#else	/* !HAVE_DWARF_SUPPORT */
 
 static int kprobe_convert_to_perf_probe(struct probe_trace_point *tp,
 					struct perf_probe_point *pp)
diff --git a/tools/perf/util/probe-finder.h b/tools/perf/util/probe-finder.h
index 3b7d63018960..3f0c29dd6ac5 100644
--- a/tools/perf/util/probe-finder.h
+++ b/tools/perf/util/probe-finder.h
@@ -14,7 +14,7 @@ static inline int is_c_varname(const char *name)
 	return isalpha(name[0]) || name[0] == '_';
 }
 
-#ifdef DWARF_SUPPORT
+#ifdef HAVE_DWARF_SUPPORT
 
 #include "dwarf-aux.h"
 
@@ -105,6 +105,6 @@ struct line_finder {
 	int			found;
 };
 
-#endif /* DWARF_SUPPORT */
+#endif /* HAVE_DWARF_SUPPORT */
 
 #endif /*_PROBE_FINDER_H */
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index a9c829be5216..c37693052800 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -8,7 +8,7 @@
 #include "symbol.h"
 #include "debug.h"
 
-#ifndef HAVE_ELF_GETPHDRNUM
+#ifndef HAVE_ELF_GETPHDRNUM_SUPPORT
 static int elf_getphdrnum(Elf *elf, size_t *dst)
 {
 	GElf_Ehdr gehdr;
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index fd5b70ea2981..2a97bb1a8097 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -13,7 +13,7 @@
 #include <libgen.h>
 #include "build-id.h"
 
-#ifdef LIBELF_SUPPORT
+#ifdef HAVE_LIBELF_SUPPORT
 #include <libelf.h>
 #include <gelf.h>
 #endif
@@ -21,7 +21,7 @@
 
 #include "dso.h"
 
-#ifdef HAVE_CPLUS_DEMANGLE
+#ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
 extern char *cplus_demangle(const char *, int);
 
 static inline char *bfd_demangle(void __maybe_unused *v, const char *c, int i)
@@ -46,7 +46,7 @@ static inline char *bfd_demangle(void __maybe_unused *v,
  * libelf 0.8.x and earlier do not support ELF_C_READ_MMAP;
  * for newer versions we can use mmap to reduce memory usage:
  */
-#ifdef LIBELF_MMAP
+#ifdef HAVE_LIBELF_MMAP_SUPPORT
 # define PERF_ELF_C_READ_MMAP ELF_C_READ_MMAP
 #else
 # define PERF_ELF_C_READ_MMAP ELF_C_READ
@@ -178,7 +178,7 @@ struct symsrc {
 	int fd;
 	enum dso_binary_type type;
 
-#ifdef LIBELF_SUPPORT
+#ifdef HAVE_LIBELF_SUPPORT
 	Elf *elf;
 	GElf_Ehdr ehdr;
 
diff --git a/tools/perf/util/unwind.h b/tools/perf/util/unwind.h
index cb6bc503a792..ec0c71a2ca2e 100644
--- a/tools/perf/util/unwind.h
+++ b/tools/perf/util/unwind.h
@@ -13,7 +13,7 @@ struct unwind_entry {
 
 typedef int (*unwind_entry_cb_t)(struct unwind_entry *entry, void *arg);
 
-#ifdef LIBUNWIND_SUPPORT
+#ifdef HAVE_LIBUNWIND_SUPPORT
 int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
 			struct machine *machine,
 			struct thread *thread,
@@ -31,5 +31,5 @@ unwind__get_entries(unwind_entry_cb_t cb __maybe_unused,
 {
 	return 0;
 }
-#endif /* LIBUNWIND_SUPPORT */
+#endif /* HAVE_LIBUNWIND_SUPPORT */
 #endif /* __UNWIND_H */
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 6d17b18e915d..ccfdeb62f576 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -1,7 +1,7 @@
 #include "../perf.h"
 #include "util.h"
 #include <sys/mman.h>
-#ifdef BACKTRACE_SUPPORT
+#ifdef HAVE_BACKTRACE_SUPPORT
 #include <execinfo.h>
 #endif
 #include <stdio.h>
@@ -204,7 +204,7 @@ int hex2u64(const char *ptr, u64 *long_val)
 }
 
 /* Obtain a backtrace and print it to stdout. */
-#ifdef BACKTRACE_SUPPORT
+#ifdef HAVE_BACKTRACE_SUPPORT
 void dump_stack(void)
 {
 	void *array[16];
-- 
cgit 


From b6aa9979416e2e98a800925d60ad00e83bc7cb7a Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 10:08:24 +0200
Subject: tools/perf/build: Add feature check core code

Start the split-out of the feature check code by adding a list of features to be
tested, and rules to process that list by building its matching feature-check
file in config/feature-checks/test-<feature>.c.

Add 'hello' as the initial feature.

This structure will allow us to build split-out feature checks in parallel and
thus speed up feature detection dramatically.

No change in functionality: no feature check is used by the build rules yet.

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-pixkihgscFaohfFigq5yt9gs@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                    | 16 ++++++++++++++++
 tools/perf/config/feature-checks/Makefile     | 16 ++++++++++++++++
 tools/perf/config/feature-checks/test-hello.c |  6 ++++++
 3 files changed, 38 insertions(+)
 create mode 100644 tools/perf/config/feature-checks/Makefile
 create mode 100644 tools/perf/config/feature-checks/test-hello.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 34be7432d567..daefe2dfacad 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -89,6 +89,22 @@ CFLAGS += -std=gnu99
 
 EXTLIBS = -lelf -lpthread -lrt -lm -ldl
 
+feature_check = $(eval $(feature_check_code)); $(info CHK: config/feature-checks/test-$(1))
+define feature_check_code
+  feature-$(2) := $(shell make -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
+endef
+
+#
+# Build the feature check binaries in parallel, ignore errors, ignore return value and suppress output:
+#
+$(info Testing features:)
+$(shell make -i -j -C config/feature-checks >/dev/null 2>&1)
+$(info done)
+
+FEATURE_TESTS = hello
+
+$(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
+
 ifeq ($(call try-cc,$(SOURCE_HELLO),$(CFLAGS) -Werror -fstack-protector-all,-fstack-protector-all),y)
   CFLAGS += -fstack-protector-all
 endif
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
new file mode 100644
index 000000000000..b3f6372ad8b0
--- /dev/null
+++ b/tools/perf/config/feature-checks/Makefile
@@ -0,0 +1,16 @@
+
+FILES=test-hello
+
+all: $(FILES)
+
+BUILD = $(CC) -o $(OUTPUT)$@ $@.c
+
+###############################
+
+test-hello: test-hello.c
+	$(BUILD)
+
+###############################
+
+clean:
+	rm -f $(FILES)
diff --git a/tools/perf/config/feature-checks/test-hello.c b/tools/perf/config/feature-checks/test-hello.c
new file mode 100644
index 000000000000..c9f398d87868
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-hello.c
@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+int main(void)
+{
+	return puts("hi");
+}
-- 
cgit 


From 8b6eb56a9570001634df1d2c7f38e7179a357362 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 13:51:28 +0200
Subject: tools/perf/build: Add 'autodep' functionality, generate feature test
 dependencies automatically

Use GCC's -MD feature to generate a dependency file for each feature test .c file,
and include that .d file in the config/feature-checks/Makefile.

This allows us to do two things:

 - speed up feature tests
 - detect removal or changes in build dependencies - including system libraries/headers

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-Jfma8pmPnnqzpxjbs3hpgmsj@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/feature-checks/Makefile | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index b3f6372ad8b0..4708ccadfc54 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -1,16 +1,20 @@
 
 FILES=test-hello
 
+CC := $(CC) -MD
+
 all: $(FILES)
 
 BUILD = $(CC) -o $(OUTPUT)$@ $@.c
 
 ###############################
 
-test-hello: test-hello.c
+test-hello:
 	$(BUILD)
 
+-include *.d */*.d
+
 ###############################
 
 clean:
-	rm -f $(FILES)
+	rm -f $(FILES) *.d
-- 
cgit 


From 3ae069cfda88349fa61de9631f878d39ab60764f Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 13:37:10 +0200
Subject: tools/perf/build: Split out feature check: 'libnuma'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-vixsrpggxFjhz7kppqgrGr6s@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                      | 7 ++++---
 tools/perf/config/feature-checks/Makefile       | 7 ++++++-
 tools/perf/config/feature-checks/test-libnuma.c | 8 ++++++++
 3 files changed, 18 insertions(+), 4 deletions(-)
 create mode 100644 tools/perf/config/feature-checks/test-libnuma.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index daefe2dfacad..f39fc224b52e 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -101,7 +101,9 @@ $(info Testing features:)
 $(shell make -i -j -C config/feature-checks >/dev/null 2>&1)
 $(info done)
 
-FEATURE_TESTS = hello
+FEATURE_TESTS =				\
+	hello				\
+	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
 
@@ -434,8 +436,7 @@ ifndef NO_BACKTRACE
 endif
 
 ifndef NO_LIBNUMA
-  FLAGS_LIBNUMA = $(CFLAGS) $(LDFLAGS) -lnuma
-  ifneq ($(call try-cc,$(SOURCE_LIBNUMA),$(FLAGS_LIBNUMA),libnuma),y)
+  ifeq ($(feature-libnuma), 0)
     msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numa-libs-devel or libnuma-dev);
     NO_LIBNUMA := 1
   else
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 4708ccadfc54..6a42ad24d64f 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -1,5 +1,7 @@
 
-FILES=test-hello
+FILES=					\
+	test-hello			\
+	test-libnuma
 
 CC := $(CC) -MD
 
@@ -12,6 +14,9 @@ BUILD = $(CC) -o $(OUTPUT)$@ $@.c
 test-hello:
 	$(BUILD)
 
+test-libnuma:
+	$(BUILD) -lnuma
+
 -include *.d */*.d
 
 ###############################
diff --git a/tools/perf/config/feature-checks/test-libnuma.c b/tools/perf/config/feature-checks/test-libnuma.c
new file mode 100644
index 000000000000..70510a923e5a
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-libnuma.c
@@ -0,0 +1,8 @@
+#include <numa.h>
+#include <numaif.h>
+
+int main(void)
+{
+	numa_available();
+	return 0;
+}
-- 
cgit 


From 90ac5422b617fcab0c6f02249502ffc17dfbf6e3 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 13:48:44 +0200
Subject: tools/perf/build: Split out feature check: 'stackprotector-all'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-gupddm9clctVYws3lyexfdhg@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                                 | 3 ++-
 tools/perf/config/feature-checks/Makefile                  | 4 ++++
 tools/perf/config/feature-checks/test-stackprotector-all.c | 6 ++++++
 3 files changed, 12 insertions(+), 1 deletion(-)
 create mode 100644 tools/perf/config/feature-checks/test-stackprotector-all.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index f39fc224b52e..1a6737144149 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -103,11 +103,12 @@ $(info done)
 
 FEATURE_TESTS =				\
 	hello				\
+	stackprotector-all		\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
 
-ifeq ($(call try-cc,$(SOURCE_HELLO),$(CFLAGS) -Werror -fstack-protector-all,-fstack-protector-all),y)
+ifeq ($(feature-stackprotector-all), 1)
   CFLAGS += -fstack-protector-all
 endif
 
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 6a42ad24d64f..7538c148b40c 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -1,6 +1,7 @@
 
 FILES=					\
 	test-hello			\
+	test-stackprotector-all		\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -14,6 +15,9 @@ BUILD = $(CC) -o $(OUTPUT)$@ $@.c
 test-hello:
 	$(BUILD)
 
+test-stackprotector-all:
+	$(BUILD) -Werror -fstack-protector-all
+
 test-libnuma:
 	$(BUILD) -lnuma
 
diff --git a/tools/perf/config/feature-checks/test-stackprotector-all.c b/tools/perf/config/feature-checks/test-stackprotector-all.c
new file mode 100644
index 000000000000..c9f398d87868
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-stackprotector-all.c
@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+int main(void)
+{
+	return puts("hi");
+}
-- 
cgit 


From 430be5ab0a50a9116c689b2b2ea7acd7a635aabe Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 7 Oct 2013 09:47:00 +0200
Subject: tools/perf/build: Split out feature check: 'stackprotector'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-eyLYjhskzn6qxkoyjtjic4ap@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                             | 3 ++-
 tools/perf/config/feature-checks/Makefile              | 4 ++++
 tools/perf/config/feature-checks/test-stackprotector.c | 6 ++++++
 3 files changed, 12 insertions(+), 1 deletion(-)
 create mode 100644 tools/perf/config/feature-checks/test-stackprotector.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 1a6737144149..9f94912ccf63 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -104,6 +104,7 @@ $(info done)
 FEATURE_TESTS =				\
 	hello				\
 	stackprotector-all		\
+	stackprotector			\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -112,7 +113,7 @@ ifeq ($(feature-stackprotector-all), 1)
   CFLAGS += -fstack-protector-all
 endif
 
-ifeq ($(call try-cc,$(SOURCE_HELLO),$(CFLAGS) -Werror -Wstack-protector,-Wstack-protector),y)
+ifeq ($(feature-stackprotector), 1)
   CFLAGS += -Wstack-protector
 endif
 
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 7538c148b40c..46b7650983cb 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -2,6 +2,7 @@
 FILES=					\
 	test-hello			\
 	test-stackprotector-all		\
+	test-stackprotector		\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -18,6 +19,9 @@ test-hello:
 test-stackprotector-all:
 	$(BUILD) -Werror -fstack-protector-all
 
+test-stackprotector:
+	$(BUILD) -Werror -fstack-protector
+
 test-libnuma:
 	$(BUILD) -lnuma
 
diff --git a/tools/perf/config/feature-checks/test-stackprotector.c b/tools/perf/config/feature-checks/test-stackprotector.c
new file mode 100644
index 000000000000..c9f398d87868
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-stackprotector.c
@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+int main(void)
+{
+	return puts("hi");
+}
-- 
cgit 


From c25104452de94102810e86323eabb7d9a4cad083 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 13:58:12 +0200
Subject: tools/perf/build: Split out feature check: 'volatile-register-var'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-5dOevlybbwvbk3zTbcxrrqet@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                                    | 3 ++-
 tools/perf/config/feature-checks/Makefile                     | 4 ++++
 tools/perf/config/feature-checks/test-volatile-register-var.c | 6 ++++++
 3 files changed, 12 insertions(+), 1 deletion(-)
 create mode 100644 tools/perf/config/feature-checks/test-volatile-register-var.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 9f94912ccf63..a3de2f8bd61a 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -105,6 +105,7 @@ FEATURE_TESTS =				\
 	hello				\
 	stackprotector-all		\
 	stackprotector			\
+	volatile-register-var		\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -117,7 +118,7 @@ ifeq ($(feature-stackprotector), 1)
   CFLAGS += -Wstack-protector
 endif
 
-ifeq ($(call try-cc,$(SOURCE_HELLO),$(CFLAGS) -Werror -Wvolatile-register-var,-Wvolatile-register-var),y)
+ifeq ($(feature-volatile-register-var), 1)
   CFLAGS += -Wvolatile-register-var
 endif
 
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 46b7650983cb..5693299b4806 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -3,6 +3,7 @@ FILES=					\
 	test-hello			\
 	test-stackprotector-all		\
 	test-stackprotector		\
+	test-volatile-register-var	\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -22,6 +23,9 @@ test-stackprotector-all:
 test-stackprotector:
 	$(BUILD) -Werror -fstack-protector
 
+test-volatile-register-var:
+	$(BUILD) -Werror -Wvolatile-register-var
+
 test-libnuma:
 	$(BUILD) -lnuma
 
diff --git a/tools/perf/config/feature-checks/test-volatile-register-var.c b/tools/perf/config/feature-checks/test-volatile-register-var.c
new file mode 100644
index 000000000000..c9f398d87868
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-volatile-register-var.c
@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+int main(void)
+{
+	return puts("hi");
+}
-- 
cgit 


From 1ea6f99efd8ae61fce68c97a9cf9f722cfbca3ad Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 7 Oct 2013 09:38:28 +0200
Subject: tools/perf/build: Split out feature check: 'fortify-source'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-wicrcLCy2wkalka7iwsuzgpb@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                             | 3 ++-
 tools/perf/config/feature-checks/Makefile              | 4 ++++
 tools/perf/config/feature-checks/test-fortify-source.c | 6 ++++++
 3 files changed, 12 insertions(+), 1 deletion(-)
 create mode 100644 tools/perf/config/feature-checks/test-fortify-source.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index a3de2f8bd61a..7a614f92ce8c 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -106,6 +106,7 @@ FEATURE_TESTS =				\
 	stackprotector-all		\
 	stackprotector			\
 	volatile-register-var		\
+	fortify-source			\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -123,7 +124,7 @@ ifeq ($(feature-volatile-register-var), 1)
 endif
 
 ifndef PERF_DEBUG
-  ifeq ($(call try-cc,$(SOURCE_HELLO),$(CFLAGS) -D_FORTIFY_SOURCE=2,-D_FORTIFY_SOURCE=2),y)
+  ifeq ($(feature-fortify-source), 1)
     CFLAGS += -D_FORTIFY_SOURCE=2
   endif
 endif
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 5693299b4806..529317e6009b 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -4,6 +4,7 @@ FILES=					\
 	test-stackprotector-all		\
 	test-stackprotector		\
 	test-volatile-register-var	\
+	test-fortify-source		\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -26,6 +27,9 @@ test-stackprotector:
 test-volatile-register-var:
 	$(BUILD) -Werror -Wvolatile-register-var
 
+test-fortify-source:
+	$(BUILD) -O2 -Werror -D_FORTIFY_SOURCE=2
+
 test-libnuma:
 	$(BUILD) -lnuma
 
diff --git a/tools/perf/config/feature-checks/test-fortify-source.c b/tools/perf/config/feature-checks/test-fortify-source.c
new file mode 100644
index 000000000000..c9f398d87868
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-fortify-source.c
@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+int main(void)
+{
+	return puts("hi");
+}
-- 
cgit 


From 78e9d6550807aedfc1f81c199bd4681c09d80ac5 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 14:11:46 +0200
Subject: tools/perf/build: Split out feature check: 'bionic'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-xjfVewprrfhlo2wuzbnpVb1k@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                     | 12 +++++++-----
 tools/perf/config/feature-checks/Makefile      |  4 ++++
 tools/perf/config/feature-checks/test-bionic.c |  6 ++++++
 3 files changed, 17 insertions(+), 5 deletions(-)
 create mode 100644 tools/perf/config/feature-checks/test-bionic.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 7a614f92ce8c..09e2ecc4b056 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -107,6 +107,7 @@ FEATURE_TESTS =				\
 	stackprotector			\
 	volatile-register-var		\
 	fortify-source			\
+	bionic				\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -150,12 +151,13 @@ CFLAGS += -I$(LIB_INCLUDE)
 CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
 
 ifndef NO_BIONIC
-ifeq ($(call try-cc,$(SOURCE_BIONIC),$(CFLAGS),bionic),y)
-  BIONIC := 1
-  EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
-  EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
+  $(feature_check,bionic)
+  ifeq ($(feature-bionic), 1)
+    BIONIC := 1
+    EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
+    EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
+  endif
 endif
-endif # NO_BIONIC
 
 ifdef NO_LIBELF
   NO_DWARF := 1
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 529317e6009b..191df97a031d 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -5,6 +5,7 @@ FILES=					\
 	test-stackprotector		\
 	test-volatile-register-var	\
 	test-fortify-source		\
+	test-bionic			\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -30,6 +31,9 @@ test-volatile-register-var:
 test-fortify-source:
 	$(BUILD) -O2 -Werror -D_FORTIFY_SOURCE=2
 
+test-bionic:
+	$(BUILD)
+
 test-libnuma:
 	$(BUILD) -lnuma
 
diff --git a/tools/perf/config/feature-checks/test-bionic.c b/tools/perf/config/feature-checks/test-bionic.c
new file mode 100644
index 000000000000..eac24e9513eb
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-bionic.c
@@ -0,0 +1,6 @@
+#include <android/api-level.h>
+
+int main(void)
+{
+	return __ANDROID_API__;
+}
-- 
cgit 


From 50eed7a71ebaf6676be8c497192b978f07581326 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 14:11:16 +0200
Subject: tools/perf/build: Clean up the libelf logic in config/Makefile

Nest the rules properly. No change in functionality.

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-dDgivr9xtjrof2vmoyOfwxkj@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile | 58 +++++++++++++++++++++++-----------------------
 1 file changed, 29 insertions(+), 29 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 09e2ecc4b056..a2e0e1b200c3 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -164,38 +164,38 @@ ifdef NO_LIBELF
   NO_DEMANGLE := 1
   NO_LIBUNWIND := 1
 else
-FLAGS_LIBELF=$(CFLAGS) $(LDFLAGS) $(EXTLIBS)
-ifneq ($(call try-cc,$(SOURCE_LIBELF),$(FLAGS_LIBELF),libelf),y)
-  FLAGS_GLIBC=$(CFLAGS) $(LDFLAGS)
-  ifeq ($(call try-cc,$(SOURCE_GLIBC),$(FLAGS_GLIBC),glibc),y)
-    LIBC_SUPPORT := 1
-  endif
-  ifeq ($(BIONIC),1)
-    LIBC_SUPPORT := 1
-  endif
-  ifeq ($(LIBC_SUPPORT),1)
-    msg := $(warning No libelf found, disables 'probe' tool, please install elfutils-libelf-devel/libelf-dev);
+  FLAGS_LIBELF=$(CFLAGS) $(LDFLAGS) $(EXTLIBS)
+  ifneq ($(call try-cc,$(SOURCE_LIBELF),$(FLAGS_LIBELF),libelf),y)
+    FLAGS_GLIBC=$(CFLAGS) $(LDFLAGS)
+    ifeq ($(call try-cc,$(SOURCE_GLIBC),$(FLAGS_GLIBC),glibc),y)
+      LIBC_SUPPORT := 1
+    endif
+    ifeq ($(BIONIC),1)
+      LIBC_SUPPORT := 1
+    endif
+    ifeq ($(LIBC_SUPPORT),1)
+      msg := $(warning No libelf found, disables 'probe' tool, please install elfutils-libelf-devel/libelf-dev);
 
-    NO_LIBELF := 1
-    NO_DWARF := 1
-    NO_DEMANGLE := 1
+      NO_LIBELF := 1
+      NO_DWARF := 1
+      NO_DEMANGLE := 1
+    else
+      msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]/glibc-static);
+    endif
   else
-    msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]/glibc-static);
-  endif
-else
-  # for linking with debug library, run like:
-  # make DEBUG=1 LIBDW_DIR=/opt/libdw/
-  ifdef LIBDW_DIR
-    LIBDW_CFLAGS  := -I$(LIBDW_DIR)/include
-    LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
-  endif
+    # for linking with debug library, run like:
+    # make DEBUG=1 LIBDW_DIR=/opt/libdw/
+    ifdef LIBDW_DIR
+      LIBDW_CFLAGS  := -I$(LIBDW_DIR)/include
+      LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
+    endif
 
-  FLAGS_DWARF=$(CFLAGS) $(LIBDW_CFLAGS) -ldw -lz -lelf $(LIBDW_LDFLAGS) $(LDFLAGS) $(EXTLIBS)
-  ifneq ($(call try-cc,$(SOURCE_DWARF),$(FLAGS_DWARF),libdw),y)
-    msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
-    NO_DWARF := 1
-  endif # Dwarf support
-endif # SOURCE_LIBELF
+    FLAGS_DWARF=$(CFLAGS) $(LIBDW_CFLAGS) -ldw -lz -lelf $(LIBDW_LDFLAGS) $(LDFLAGS) $(EXTLIBS)
+    ifneq ($(call try-cc,$(SOURCE_DWARF),$(FLAGS_DWARF),libdw),y)
+      msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
+      NO_DWARF := 1
+    endif # Dwarf support
+  endif # SOURCE_LIBELF
 endif # NO_LIBELF
 
 ifndef NO_LIBELF
-- 
cgit 


From 8f7f8005f526c23d3e5537f5ab68c1c3fb422453 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 14:20:25 +0200
Subject: tools/perf/build: Split out feature check: 'libelf'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-qznhihaasbysfqO7ffvRsf9q@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                     | 4 ++--
 tools/perf/config/feature-checks/Makefile      | 4 ++++
 tools/perf/config/feature-checks/test-libelf.c | 7 +++++++
 3 files changed, 13 insertions(+), 2 deletions(-)
 create mode 100644 tools/perf/config/feature-checks/test-libelf.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index a2e0e1b200c3..68654281b973 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -108,6 +108,7 @@ FEATURE_TESTS =				\
 	volatile-register-var		\
 	fortify-source			\
 	bionic				\
+	libelf				\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -164,8 +165,7 @@ ifdef NO_LIBELF
   NO_DEMANGLE := 1
   NO_LIBUNWIND := 1
 else
-  FLAGS_LIBELF=$(CFLAGS) $(LDFLAGS) $(EXTLIBS)
-  ifneq ($(call try-cc,$(SOURCE_LIBELF),$(FLAGS_LIBELF),libelf),y)
+  ifeq ($(feature-libelf), 0)
     FLAGS_GLIBC=$(CFLAGS) $(LDFLAGS)
     ifeq ($(call try-cc,$(SOURCE_GLIBC),$(FLAGS_GLIBC),glibc),y)
       LIBC_SUPPORT := 1
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 191df97a031d..789a38d21a34 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -6,6 +6,7 @@ FILES=					\
 	test-volatile-register-var	\
 	test-fortify-source		\
 	test-bionic			\
+	test-libelf			\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -34,6 +35,9 @@ test-fortify-source:
 test-bionic:
 	$(BUILD)
 
+test-libelf:
+	$(BUILD) -lelf
+
 test-libnuma:
 	$(BUILD) -lnuma
 
diff --git a/tools/perf/config/feature-checks/test-libelf.c b/tools/perf/config/feature-checks/test-libelf.c
new file mode 100644
index 000000000000..1a08f9717344
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-libelf.c
@@ -0,0 +1,7 @@
+#include <libelf.h>
+
+int main(void)
+{
+	Elf *elf = elf_begin(0, ELF_C_READ, 0);
+	return (long)elf;
+}
-- 
cgit 


From e12762cfd9b4ec8f9bb5863eea403253175df9f1 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 7 Oct 2013 10:34:20 +0200
Subject: tools/perf/build: Split out feature check: 'glibc'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-nqnnsptw7ivOzhzbNjiun7ds@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                    | 4 ++--
 tools/perf/config/feature-checks/Makefile     | 4 ++++
 tools/perf/config/feature-checks/test-glibc.c | 8 ++++++++
 3 files changed, 14 insertions(+), 2 deletions(-)
 create mode 100644 tools/perf/config/feature-checks/test-glibc.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 68654281b973..8cd0fd82967c 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -109,6 +109,7 @@ FEATURE_TESTS =				\
 	fortify-source			\
 	bionic				\
 	libelf				\
+	glibc				\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -166,8 +167,7 @@ ifdef NO_LIBELF
   NO_LIBUNWIND := 1
 else
   ifeq ($(feature-libelf), 0)
-    FLAGS_GLIBC=$(CFLAGS) $(LDFLAGS)
-    ifeq ($(call try-cc,$(SOURCE_GLIBC),$(FLAGS_GLIBC),glibc),y)
+    ifeq ($(feature-glibc), 1)
       LIBC_SUPPORT := 1
     endif
     ifeq ($(BIONIC),1)
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 789a38d21a34..c0569c7edb89 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -7,6 +7,7 @@ FILES=					\
 	test-fortify-source		\
 	test-bionic			\
 	test-libelf			\
+	test-glibc			\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -38,6 +39,9 @@ test-bionic:
 test-libelf:
 	$(BUILD) -lelf
 
+test-glibc:
+	$(BUILD)
+
 test-libnuma:
 	$(BUILD) -lnuma
 
diff --git a/tools/perf/config/feature-checks/test-glibc.c b/tools/perf/config/feature-checks/test-glibc.c
new file mode 100644
index 000000000000..13c66a58f2ec
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-glibc.c
@@ -0,0 +1,8 @@
+#include <gnu/libc-version.h>
+
+int main(void)
+{
+	const char *version = gnu_get_libc_version();
+	return (long)version;
+}
+
-- 
cgit 


From 8295d4e27262dc49177e70dcc8ba34fa26343cf2 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 7 Oct 2013 10:35:39 +0200
Subject: tools/perf/build: Split out feature check: 'dwarf'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-dsx0fn9mjwfprizboANvtuup@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                    | 4 ++--
 tools/perf/config/feature-checks/Makefile     | 4 ++++
 tools/perf/config/feature-checks/test-dwarf.c | 9 +++++++++
 3 files changed, 15 insertions(+), 2 deletions(-)
 create mode 100644 tools/perf/config/feature-checks/test-dwarf.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 8cd0fd82967c..89630b8c8d59 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -110,6 +110,7 @@ FEATURE_TESTS =				\
 	bionic				\
 	libelf				\
 	glibc				\
+	dwarf				\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -190,8 +191,7 @@ else
       LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
     endif
 
-    FLAGS_DWARF=$(CFLAGS) $(LIBDW_CFLAGS) -ldw -lz -lelf $(LIBDW_LDFLAGS) $(LDFLAGS) $(EXTLIBS)
-    ifneq ($(call try-cc,$(SOURCE_DWARF),$(FLAGS_DWARF),libdw),y)
+    ifneq ($(feature-dwarf), 1)
       msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
       NO_DWARF := 1
     endif # Dwarf support
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index c0569c7edb89..566a71dd6168 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -8,6 +8,7 @@ FILES=					\
 	test-bionic			\
 	test-libelf			\
 	test-glibc			\
+	test-dwarf			\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -42,6 +43,9 @@ test-libelf:
 test-glibc:
 	$(BUILD)
 
+test-dwarf:
+	$(BUILD) -ldw
+
 test-libnuma:
 	$(BUILD) -lnuma
 
diff --git a/tools/perf/config/feature-checks/test-dwarf.c b/tools/perf/config/feature-checks/test-dwarf.c
new file mode 100644
index 000000000000..783dfcd9a5c4
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-dwarf.c
@@ -0,0 +1,9 @@
+#include <dwarf.h>
+#include <elfutils/libdw.h>
+#include <elfutils/version.h>
+
+int main(void)
+{
+	Dwarf *dbg = dwarf_begin(0, DWARF_C_READ);
+	return (long)dbg;
+}
-- 
cgit 


From fb3d333b3faa6bf975f00973c6a6271b2ab93c0c Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 7 Oct 2013 10:05:51 +0200
Subject: tools/perf/build: Clean up the mmap logic in config/Makefile

Nest the rules properly. No change in functionality.

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-wwktuHl4Ra5lyrrretkxmxqf@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile | 51 +++++++++++++++++++++++-----------------------
 1 file changed, 26 insertions(+), 25 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 89630b8c8d59..8a27de27f7c2 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -199,37 +199,38 @@ else
 endif # NO_LIBELF
 
 ifndef NO_LIBELF
-CFLAGS += -DHAVE_LIBELF_SUPPORT
-FLAGS_LIBELF=$(CFLAGS) $(LDFLAGS) $(EXTLIBS)
-ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DHAVE_LIBELF_MMAP_SUPPORT),y)
-  CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
-endif
-ifeq ($(call try-cc,$(SOURCE_ELF_GETPHDRNUM),$(FLAGS_LIBELF),-DHAVE_ELF_GETPHDRNUM_SUPPORT),y)
-  CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
-endif
+  CFLAGS += -DHAVE_LIBELF_SUPPORT
+  FLAGS_LIBELF=$(CFLAGS) $(LDFLAGS) $(EXTLIBS)
 
-# include ARCH specific config
--include $(src-perf)/arch/$(ARCH)/Makefile
+  ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DHAVE_LIBELF_MMAP_SUPPORT),y)
+    CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
+  endif
 
-ifndef NO_DWARF
-ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
-  msg := $(warning DWARF register mappings have not been defined for architecture $(ARCH), DWARF support disabled);
-  NO_DWARF := 1
-else
-  CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
-  LDFLAGS += $(LIBDW_LDFLAGS)
-  EXTLIBS += -lelf -ldw
-endif # PERF_HAVE_DWARF_REGS
-endif # NO_DWARF
+  ifeq ($(call try-cc,$(SOURCE_ELF_GETPHDRNUM),$(FLAGS_LIBELF),-DHAVE_ELF_GETPHDRNUM_SUPPORT),y)
+    CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
+  endif
+
+  # include ARCH specific config
+  -include $(src-perf)/arch/$(ARCH)/Makefile
 
+  ifndef NO_DWARF
+    ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
+      msg := $(warning DWARF register mappings have not been defined for architecture $(ARCH), DWARF support disabled);
+      NO_DWARF := 1
+    else
+      CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
+      LDFLAGS += $(LIBDW_LDFLAGS)
+      EXTLIBS += -lelf -ldw
+    endif # PERF_HAVE_DWARF_REGS
+  endif # NO_DWARF
 endif # NO_LIBELF
 
 ifndef NO_LIBELF
-CFLAGS += -DHAVE_LIBELF_SUPPORT
-FLAGS_LIBELF=$(CFLAGS) $(LDFLAGS) $(EXTLIBS)
-ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DHAVE_LIBELF_MMAP_SUPPORT),y)
-  CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
-endif # try-cc
+  CFLAGS += -DHAVE_LIBELF_SUPPORT
+  FLAGS_LIBELF=$(CFLAGS) $(LDFLAGS) $(EXTLIBS)
+  ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DHAVE_LIBELF_MMAP_SUPPORT),y)
+    CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
+  endif # try-cc
 endif # NO_LIBELF
 
 # There's only x86 (both 32 and 64) support for CFI unwind so far
-- 
cgit 


From 8869b17ee0bdd0da3d1f7d7ced284ab444c2c6d8 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 15:02:28 +0200
Subject: tools/perf/build: Split out feature check: 'libelf-mmap'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-9fxnxjcmrgbSvipxlwsdQ8fg@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                          | 6 +++---
 tools/perf/config/feature-checks/Makefile           | 4 ++++
 tools/perf/config/feature-checks/test-libelf-mmap.c | 7 +++++++
 3 files changed, 14 insertions(+), 3 deletions(-)
 create mode 100644 tools/perf/config/feature-checks/test-libelf-mmap.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 8a27de27f7c2..bf1f021d2467 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -111,6 +111,7 @@ FEATURE_TESTS =				\
 	libelf				\
 	glibc				\
 	dwarf				\
+	libelf-mmap			\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -202,7 +203,7 @@ ifndef NO_LIBELF
   CFLAGS += -DHAVE_LIBELF_SUPPORT
   FLAGS_LIBELF=$(CFLAGS) $(LDFLAGS) $(EXTLIBS)
 
-  ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DHAVE_LIBELF_MMAP_SUPPORT),y)
+  ifeq ($(feature-libelf-mmap), 1)
     CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
   endif
 
@@ -227,8 +228,7 @@ endif # NO_LIBELF
 
 ifndef NO_LIBELF
   CFLAGS += -DHAVE_LIBELF_SUPPORT
-  FLAGS_LIBELF=$(CFLAGS) $(LDFLAGS) $(EXTLIBS)
-  ifeq ($(call try-cc,$(SOURCE_ELF_MMAP),$(FLAGS_LIBELF),-DHAVE_LIBELF_MMAP_SUPPORT),y)
+  ifeq ($(feature-libelf-mmap), 1)
     CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
   endif # try-cc
 endif # NO_LIBELF
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 566a71dd6168..bf96e34509f4 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -9,6 +9,7 @@ FILES=					\
 	test-libelf			\
 	test-glibc			\
 	test-dwarf			\
+	test-libelf-mmap		\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -46,6 +47,9 @@ test-glibc:
 test-dwarf:
 	$(BUILD) -ldw
 
+test-libelf-mmap:
+	$(BUILD) -lelf
+
 test-libnuma:
 	$(BUILD) -lnuma
 
diff --git a/tools/perf/config/feature-checks/test-libelf-mmap.c b/tools/perf/config/feature-checks/test-libelf-mmap.c
new file mode 100644
index 000000000000..1c648159c705
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-libelf-mmap.c
@@ -0,0 +1,7 @@
+#include <libelf.h>
+#
+int main(void)
+{
+	Elf *elf = elf_begin(0, ELF_C_READ_MMAP, 0);
+	return (long)elf;
+}
-- 
cgit 


From b7bcef6f8e61580e883672b6c97148d4f89e9874 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 14:35:27 +0200
Subject: tools/perf/build: Split out feature check: 'libelf-getphdrnum'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-wa9qstb8erbjreLxiHepzjfw@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                                | 5 +++--
 tools/perf/config/feature-checks/Makefile                 | 4 ++++
 tools/perf/config/feature-checks/test-libelf-getphdrnum.c | 7 +++++++
 3 files changed, 14 insertions(+), 2 deletions(-)
 create mode 100644 tools/perf/config/feature-checks/test-libelf-getphdrnum.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index bf1f021d2467..718b47611340 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -112,6 +112,7 @@ FEATURE_TESTS =				\
 	glibc				\
 	dwarf				\
 	libelf-mmap			\
+	libelf-getphdrnum		\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -207,7 +208,7 @@ ifndef NO_LIBELF
     CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
   endif
 
-  ifeq ($(call try-cc,$(SOURCE_ELF_GETPHDRNUM),$(FLAGS_LIBELF),-DHAVE_ELF_GETPHDRNUM_SUPPORT),y)
+  ifeq ($(feature-libelf-getphdrnum), 1)
     CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
   endif
 
@@ -230,7 +231,7 @@ ifndef NO_LIBELF
   CFLAGS += -DHAVE_LIBELF_SUPPORT
   ifeq ($(feature-libelf-mmap), 1)
     CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
-  endif # try-cc
+  endif
 endif # NO_LIBELF
 
 # There's only x86 (both 32 and 64) support for CFI unwind so far
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index bf96e34509f4..83b3a02b64d8 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -10,6 +10,7 @@ FILES=					\
 	test-glibc			\
 	test-dwarf			\
 	test-libelf-mmap		\
+	test-libelf-getphdrnum		\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -50,6 +51,9 @@ test-dwarf:
 test-libelf-mmap:
 	$(BUILD) -lelf
 
+test-libelf-getphdrnum:
+	$(BUILD) -lelf
+
 test-libnuma:
 	$(BUILD) -lnuma
 
diff --git a/tools/perf/config/feature-checks/test-libelf-getphdrnum.c b/tools/perf/config/feature-checks/test-libelf-getphdrnum.c
new file mode 100644
index 000000000000..58eca5332520
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-libelf-getphdrnum.c
@@ -0,0 +1,7 @@
+#include <libelf.h>
+#
+int main(void)
+{
+	size_t dst;
+	return elf_getphdrnum(0, &dst);
+}
-- 
cgit 


From 308e1e700a1337b89c7530a4f4cdde5ccb52fb4e Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 7 Oct 2013 10:30:47 +0200
Subject: tools/perf/build: Clean up the libunwind logic in config/Makefile

Nest the rules properly. No change in functionality.

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-jjlmizjmhockUs04wqnScnkl@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 718b47611340..0d7558790a02 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -240,19 +240,19 @@ ifneq ($(ARCH),x86)
 endif
 
 ifndef NO_LIBUNWIND
-# for linking with debug library, run like:
-# make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
-ifdef LIBUNWIND_DIR
-  LIBUNWIND_CFLAGS  := -I$(LIBUNWIND_DIR)/include
-  LIBUNWIND_LDFLAGS := -L$(LIBUNWIND_DIR)/lib
-endif
+  # for linking with debug library, run like:
+  # make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
+  ifdef LIBUNWIND_DIR
+    LIBUNWIND_CFLAGS  := -I$(LIBUNWIND_DIR)/include
+    LIBUNWIND_LDFLAGS := -L$(LIBUNWIND_DIR)/lib
+  endif
 
-FLAGS_UNWIND=$(LIBUNWIND_CFLAGS) $(CFLAGS) $(LIBUNWIND_LDFLAGS) $(LDFLAGS) $(EXTLIBS) $(LIBUNWIND_LIBS)
-ifneq ($(call try-cc,$(SOURCE_LIBUNWIND),$(FLAGS_UNWIND),libunwind),y)
-  msg := $(warning No libunwind found, disabling post unwind support. Please install libunwind-dev[el] >= 0.99);
-  NO_LIBUNWIND := 1
-endif # Libunwind support
-endif # NO_LIBUNWIND
+  FLAGS_UNWIND=$(LIBUNWIND_CFLAGS) $(CFLAGS) $(LIBUNWIND_LDFLAGS) $(LDFLAGS) $(EXTLIBS) $(LIBUNWIND_LIBS)
+  ifneq ($(call try-cc,$(SOURCE_LIBUNWIND),$(FLAGS_UNWIND),libunwind),y)
+    msg := $(warning No libunwind found, disabling post unwind support. Please install libunwind-dev[el] >= 0.99);
+    NO_LIBUNWIND := 1
+  endif
+endif
 
 ifndef NO_LIBUNWIND
   CFLAGS += -DHAVE_LIBUNWIND_SUPPORT
-- 
cgit 


From 058f952de9b3075cd888dc3cea60691db0ec4d3f Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 14:45:44 +0200
Subject: tools/perf/build: Split out feature check: 'libunwind'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-vTiatsVyva3tfgh3vhxaidxl@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                        | 13 ++++++++-----
 tools/perf/config/feature-checks/Makefile         |  4 ++++
 tools/perf/config/feature-checks/test-libunwind.c | 20 ++++++++++++++++++++
 3 files changed, 32 insertions(+), 5 deletions(-)
 create mode 100644 tools/perf/config/feature-checks/test-libunwind.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 0d7558790a02..d684a292536e 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -113,6 +113,7 @@ FEATURE_TESTS =				\
 	dwarf				\
 	libelf-mmap			\
 	libelf-getphdrnum		\
+	libunwind			\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -240,15 +241,17 @@ ifneq ($(ARCH),x86)
 endif
 
 ifndef NO_LIBUNWIND
-  # for linking with debug library, run like:
-  # make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
+  #
+  # For linking with debug library, run like:
+  #
+  #   make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
+  #
   ifdef LIBUNWIND_DIR
     LIBUNWIND_CFLAGS  := -I$(LIBUNWIND_DIR)/include
     LIBUNWIND_LDFLAGS := -L$(LIBUNWIND_DIR)/lib
   endif
 
-  FLAGS_UNWIND=$(LIBUNWIND_CFLAGS) $(CFLAGS) $(LIBUNWIND_LDFLAGS) $(LDFLAGS) $(EXTLIBS) $(LIBUNWIND_LIBS)
-  ifneq ($(call try-cc,$(SOURCE_LIBUNWIND),$(FLAGS_UNWIND),libunwind),y)
+  ifneq ($(feature-libunwind), 1)
     msg := $(warning No libunwind found, disabling post unwind support. Please install libunwind-dev[el] >= 0.99);
     NO_LIBUNWIND := 1
   endif
@@ -259,7 +262,7 @@ ifndef NO_LIBUNWIND
   EXTLIBS += $(LIBUNWIND_LIBS)
   CFLAGS += $(LIBUNWIND_CFLAGS)
   LDFLAGS += $(LIBUNWIND_LDFLAGS)
-endif # NO_LIBUNWIND
+endif
 
 ifndef NO_LIBAUDIT
   FLAGS_LIBAUDIT = $(CFLAGS) $(LDFLAGS) -laudit
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 83b3a02b64d8..d6d9570a038f 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -11,6 +11,7 @@ FILES=					\
 	test-dwarf			\
 	test-libelf-mmap		\
 	test-libelf-getphdrnum		\
+	test-libunwind			\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -57,6 +58,9 @@ test-libelf-getphdrnum:
 test-libnuma:
 	$(BUILD) -lnuma
 
+test-libunwind:
+	$(BUILD) -lunwind -lunwind-x86_64 -lelf
+
 -include *.d */*.d
 
 ###############################
diff --git a/tools/perf/config/feature-checks/test-libunwind.c b/tools/perf/config/feature-checks/test-libunwind.c
new file mode 100644
index 000000000000..562274695c76
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-libunwind.c
@@ -0,0 +1,20 @@
+#include <libunwind.h>
+#include <stdlib.h>
+
+extern int UNW_OBJ(dwarf_search_unwind_table) (unw_addr_space_t as,
+                                      unw_word_t ip,
+                                      unw_dyn_info_t *di,
+                                      unw_proc_info_t *pi,
+                                      int need_unwind_info, void *arg);
+
+
+#define dwarf_search_unwind_table UNW_OBJ(dwarf_search_unwind_table)
+
+int main(void)
+{
+	unw_addr_space_t addr_space;
+	addr_space = unw_create_addr_space(NULL, 0);
+	unw_init_remote(NULL, addr_space, NULL);
+	dwarf_search_unwind_table(addr_space, 0, NULL, NULL, 0, NULL);
+	return 0;
+}
-- 
cgit 


From d795a658eb0ab5ab0b86cda5abe28954b0a08471 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 14:55:31 +0200
Subject: tools/perf/build: Split out feature check: 'libaudit'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-orhejqtjao3vf4wxwBUdzhaz@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                       | 4 ++--
 tools/perf/config/feature-checks/Makefile        | 4 ++++
 tools/perf/config/feature-checks/test-libaudit.c | 7 +++++++
 3 files changed, 13 insertions(+), 2 deletions(-)
 create mode 100644 tools/perf/config/feature-checks/test-libaudit.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index d684a292536e..d4f18f4c8d51 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -114,6 +114,7 @@ FEATURE_TESTS =				\
 	libelf-mmap			\
 	libelf-getphdrnum		\
 	libunwind			\
+	libaudit			\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -265,8 +266,7 @@ ifndef NO_LIBUNWIND
 endif
 
 ifndef NO_LIBAUDIT
-  FLAGS_LIBAUDIT = $(CFLAGS) $(LDFLAGS) -laudit
-  ifneq ($(call try-cc,$(SOURCE_LIBAUDIT),$(FLAGS_LIBAUDIT),libaudit),y)
+  ifneq ($(feature-libaudit), 1)
     msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
     NO_LIBAUDIT := 1
   else
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index d6d9570a038f..8e49fa0c922b 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -12,6 +12,7 @@ FILES=					\
 	test-libelf-mmap		\
 	test-libelf-getphdrnum		\
 	test-libunwind			\
+	test-libaudit			\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -61,6 +62,9 @@ test-libnuma:
 test-libunwind:
 	$(BUILD) -lunwind -lunwind-x86_64 -lelf
 
+test-libaudit:
+	$(BUILD) -laudit
+
 -include *.d */*.d
 
 ###############################
diff --git a/tools/perf/config/feature-checks/test-libaudit.c b/tools/perf/config/feature-checks/test-libaudit.c
new file mode 100644
index 000000000000..854a65d3cc78
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-libaudit.c
@@ -0,0 +1,7 @@
+#include <libaudit.h>
+
+int main(void)
+{
+	printf("error message: %s\n", audit_errno_to_name(0));
+	return audit_open();
+}
-- 
cgit 


From b9498b508a0d601029f1040a51e9a5a4aecbb926 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 14:57:54 +0200
Subject: tools/perf/build: Split out feature check: 'libslang'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-FGmpkydfwqlkaw7yy8ewjpza@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                       | 4 ++--
 tools/perf/config/feature-checks/Makefile        | 4 ++++
 tools/perf/config/feature-checks/test-libslang.c | 6 ++++++
 3 files changed, 12 insertions(+), 2 deletions(-)
 create mode 100644 tools/perf/config/feature-checks/test-libslang.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index d4f18f4c8d51..43713c641600 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -115,6 +115,7 @@ FEATURE_TESTS =				\
 	libelf-getphdrnum		\
 	libunwind			\
 	libaudit			\
+	libslang			\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -280,8 +281,7 @@ ifdef NO_NEWT
 endif
 
 ifndef NO_SLANG
-  FLAGS_SLANG=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) -I/usr/include/slang -lslang
-  ifneq ($(call try-cc,$(SOURCE_SLANG),$(FLAGS_SLANG),libslang),y)
+  ifneq ($(feature-libslang), 1)
     msg := $(warning slang not found, disables TUI support. Please install slang-devel or libslang-dev);
     NO_SLANG := 1
   else
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 8e49fa0c922b..c9b15b0a819b 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -13,6 +13,7 @@ FILES=					\
 	test-libelf-getphdrnum		\
 	test-libunwind			\
 	test-libaudit			\
+	test-libslang			\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -65,6 +66,9 @@ test-libunwind:
 test-libaudit:
 	$(BUILD) -laudit
 
+test-libslang:
+	$(BUILD) -I/usr/include/slang -lslang
+
 -include *.d */*.d
 
 ###############################
diff --git a/tools/perf/config/feature-checks/test-libslang.c b/tools/perf/config/feature-checks/test-libslang.c
new file mode 100644
index 000000000000..22ff22ed94d1
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-libslang.c
@@ -0,0 +1,6 @@
+#include <slang.h>
+
+int main(void)
+{
+	return SLsmg_init_smg();
+}
-- 
cgit 


From 7ef9e055ce1d8ad93f636bde1bf050eef26c798b Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 15:01:56 +0200
Subject: tools/perf/build: Split out feature check: 'gtk2'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-gfwzurn7wywiviLp7Swyyqsy@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                   |  3 ++-
 tools/perf/config/feature-checks/Makefile    |  4 ++++
 tools/perf/config/feature-checks/test-gtk2.c | 10 ++++++++++
 3 files changed, 16 insertions(+), 1 deletion(-)
 create mode 100644 tools/perf/config/feature-checks/test-gtk2.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 43713c641600..b3bf931dd2a0 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -116,6 +116,7 @@ FEATURE_TESTS =				\
 	libunwind			\
 	libaudit			\
 	libslang			\
+	gtk2				\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -294,7 +295,7 @@ endif
 
 ifndef NO_GTK2
   FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell pkg-config --libs --cflags gtk+-2.0 2>/dev/null)
-  ifneq ($(call try-cc,$(SOURCE_GTK2),$(FLAGS_GTK2),gtk2),y)
+  ifneq ($(feature-gtk2), 1)
     msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
     NO_GTK2 := 1
   else
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index c9b15b0a819b..920958c83ce8 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -14,6 +14,7 @@ FILES=					\
 	test-libunwind			\
 	test-libaudit			\
 	test-libslang			\
+	test-gtk2			\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -69,6 +70,9 @@ test-libaudit:
 test-libslang:
 	$(BUILD) -I/usr/include/slang -lslang
 
+test-gtk2:
+	$(BUILD) $(shell pkg-config --libs --cflags gtk+-2.0 2>/dev/null)
+
 -include *.d */*.d
 
 ###############################
diff --git a/tools/perf/config/feature-checks/test-gtk2.c b/tools/perf/config/feature-checks/test-gtk2.c
new file mode 100644
index 000000000000..1ac6d8a1fb14
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-gtk2.c
@@ -0,0 +1,10 @@
+#pragma GCC diagnostic ignored "-Wstrict-prototypes"
+#include <gtk/gtk.h>
+#pragma GCC diagnostic error "-Wstrict-prototypes"
+
+int main(int argc, char *argv[])
+{
+        gtk_init(&argc, &argv);
+
+        return 0;
+}
-- 
cgit 


From c7a79e96dc166a1bdadca1367a39c84887e73de3 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 15:08:30 +0200
Subject: tools/perf/build: Split out feature check: 'gtk2-infobar'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-oumjyVjonjvgH8ts4mftagel@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                           |  3 ++-
 tools/perf/config/feature-checks/Makefile            |  4 ++++
 tools/perf/config/feature-checks/test-gtk2-infobar.c | 10 ++++++++++
 3 files changed, 16 insertions(+), 1 deletion(-)
 create mode 100644 tools/perf/config/feature-checks/test-gtk2-infobar.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index b3bf931dd2a0..3d3d435b41fa 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -117,6 +117,7 @@ FEATURE_TESTS =				\
 	libaudit			\
 	libslang			\
 	gtk2				\
+	gtk2-infobar			\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -299,7 +300,7 @@ ifndef NO_GTK2
     msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
     NO_GTK2 := 1
   else
-    ifeq ($(call try-cc,$(SOURCE_GTK2_INFOBAR),$(FLAGS_GTK2),-DHAVE_GTK_INFO_BAR_SUPPORT),y)
+    ifeq ($(feature-gtk2-infobar), 1)
       CFLAGS += -DHAVE_GTK_INFO_BAR_SUPPORT
     endif
     CFLAGS += -DHAVE_GTK2_SUPPORT
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 920958c83ce8..017918f809ff 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -15,6 +15,7 @@ FILES=					\
 	test-libaudit			\
 	test-libslang			\
 	test-gtk2			\
+	test-gtk2-infobar		\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -73,6 +74,9 @@ test-libslang:
 test-gtk2:
 	$(BUILD) $(shell pkg-config --libs --cflags gtk+-2.0 2>/dev/null)
 
+test-gtk2-infobar:
+	$(BUILD) $(shell pkg-config --libs --cflags gtk+-2.0 2>/dev/null)
+
 -include *.d */*.d
 
 ###############################
diff --git a/tools/perf/config/feature-checks/test-gtk2-infobar.c b/tools/perf/config/feature-checks/test-gtk2-infobar.c
new file mode 100644
index 000000000000..eebcfbc45120
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-gtk2-infobar.c
@@ -0,0 +1,10 @@
+#pragma GCC diagnostic ignored "-Wstrict-prototypes"
+#include <gtk/gtk.h>
+#pragma GCC diagnostic error "-Wstrict-prototypes"
+
+int main(void)
+{
+	gtk_info_bar_new();
+
+	return 0;
+}
-- 
cgit 


From 7181a6714efc5039ffb50db7462d5cefe15b5630 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 15:15:36 +0200
Subject: tools/perf/build: Split out feature check: 'libperl'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-ggucqbwFwpxyuxde6dm7itHq@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                      |  3 ++-
 tools/perf/config/feature-checks/Makefile       | 13 +++++++++++++
 tools/perf/config/feature-checks/test-libperl.c |  9 +++++++++
 3 files changed, 24 insertions(+), 1 deletion(-)
 create mode 100644 tools/perf/config/feature-checks/test-libperl.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 3d3d435b41fa..8124dd55b05c 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -118,6 +118,7 @@ FEATURE_TESTS =				\
 	libslang			\
 	gtk2				\
 	gtk2-infobar			\
+	libperl				\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -321,7 +322,7 @@ else
   PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
   FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
 
-  ifneq ($(call try-cc,$(SOURCE_PERL_EMBED),$(FLAGS_PERL_EMBED),perl),y)
+  ifneq ($(feature-libperl), 1)
     CFLAGS += -DNO_LIBPERL
     NO_LIBPERL := 1
   else
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 017918f809ff..3033c25f00b4 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -16,6 +16,7 @@ FILES=					\
 	test-libslang			\
 	test-gtk2			\
 	test-gtk2-infobar		\
+	test-libperl			\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -77,6 +78,18 @@ test-gtk2:
 test-gtk2-infobar:
 	$(BUILD) $(shell pkg-config --libs --cflags gtk+-2.0 2>/dev/null)
 
+grep-libs  = $(filter -l%,$(1))
+strip-libs = $(filter-out -l%,$(1))
+
+PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
+PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
+PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
+PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
+FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
+
+test-libperl:
+	$(BUILD) $(FLAGS_PERL_EMBED)
+
 -include *.d */*.d
 
 ###############################
diff --git a/tools/perf/config/feature-checks/test-libperl.c b/tools/perf/config/feature-checks/test-libperl.c
new file mode 100644
index 000000000000..8871f6a0fdb4
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-libperl.c
@@ -0,0 +1,9 @@
+#include <EXTERN.h>
+#include <perl.h>
+
+int main(void)
+{
+	perl_alloc();
+
+	return 0;
+}
-- 
cgit 


From 9734163b6ee1425c6fa4b65d7e6ce34c9079420d Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 15:18:37 +0200
Subject: tools/perf/build: Split out feature check: 'libpython'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-9wfutfb8ufFHrddrwlejqrai@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                        |  3 ++-
 tools/perf/config/feature-checks/Makefile         | 18 ++++++++++++++++++
 tools/perf/config/feature-checks/test-libpython.c |  7 +++++++
 3 files changed, 27 insertions(+), 1 deletion(-)
 create mode 100644 tools/perf/config/feature-checks/test-libpython.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 8124dd55b05c..595c0e0dd139 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -119,6 +119,7 @@ FEATURE_TESTS =				\
 	gtk2				\
 	gtk2-infobar			\
 	libperl				\
+	libpython			\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -367,7 +368,7 @@ else
       PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
       FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
 
-      ifneq ($(call try-cc,$(SOURCE_PYTHON_EMBED),$(FLAGS_PYTHON_EMBED),python),y)
+      ifneq ($(feature-libpython), 1)
         $(call disable-python,Python.h (for Python 2.x))
       else
 
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 3033c25f00b4..e7ed05aa5710 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -17,6 +17,7 @@ FILES=					\
 	test-gtk2			\
 	test-gtk2-infobar		\
 	test-libperl			\
+	test-libpython			\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -90,6 +91,23 @@ FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
 test-libperl:
 	$(BUILD) $(FLAGS_PERL_EMBED)
 
+override PYTHON := python
+override PYTHON_CONFIG := python-config
+
+escape-for-shell-sq =  $(subst ','\'',$(1))
+shell-sq = '$(escape-for-shell-sq)'
+
+PYTHON_CONFIG_SQ = $(call shell-sq,$(PYTHON_CONFIG))
+
+PYTHON_EMBED_LDOPTS = $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
+PYTHON_EMBED_LDFLAGS = $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
+PYTHON_EMBED_LIBADD = $(call grep-libs,$(PYTHON_EMBED_LDOPTS))
+PYTHON_EMBED_CCOPTS = $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
+FLAGS_PYTHON_EMBED = $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
+
+test-libpython:
+	$(BUILD) $(FLAGS_PYTHON_EMBED)
+
 -include *.d */*.d
 
 ###############################
diff --git a/tools/perf/config/feature-checks/test-libpython.c b/tools/perf/config/feature-checks/test-libpython.c
new file mode 100644
index 000000000000..72267972fa98
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-libpython.c
@@ -0,0 +1,7 @@
+#include <Python.h>
+#
+int main(void)
+{
+	Py_Initialize();
+	return 0;
+}
-- 
cgit 


From 95d061c8a9f36e8c2cc458f97bc67716571b3fee Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 15:40:04 +0200
Subject: tools/perf/build: Split out feature check: 'libpython-version'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-raHmlqlnv0zexsrPau8hhane@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                                |  3 ++-
 tools/perf/config/feature-checks/Makefile                 |  4 ++++
 tools/perf/config/feature-checks/test-libpython-version.c | 10 ++++++++++
 3 files changed, 16 insertions(+), 1 deletion(-)
 create mode 100644 tools/perf/config/feature-checks/test-libpython-version.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 595c0e0dd139..63ba069868c9 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -120,6 +120,7 @@ FEATURE_TESTS =				\
 	gtk2-infobar			\
 	libperl				\
 	libpython			\
+	libpython-version		\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -372,7 +373,7 @@ else
         $(call disable-python,Python.h (for Python 2.x))
       else
 
-        ifneq ($(call try-cc,$(SOURCE_PYTHON_VERSION),$(FLAGS_PYTHON_EMBED),python version),y)
+        ifneq ($(feature-libpython-version), 1)
           $(warning Python 3 is not yet supported; please set)
           $(warning PYTHON and/or PYTHON_CONFIG appropriately.)
           $(warning If you also have Python 2 installed, then)
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index e7ed05aa5710..d15074d77243 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -18,6 +18,7 @@ FILES=					\
 	test-gtk2-infobar		\
 	test-libperl			\
 	test-libpython			\
+	test-libpython-version		\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -108,6 +109,9 @@ FLAGS_PYTHON_EMBED = $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
 test-libpython:
 	$(BUILD) $(FLAGS_PYTHON_EMBED)
 
+test-libpython-version:
+	$(BUILD) $(FLAGS_PYTHON_EMBED)
+
 -include *.d */*.d
 
 ###############################
diff --git a/tools/perf/config/feature-checks/test-libpython-version.c b/tools/perf/config/feature-checks/test-libpython-version.c
new file mode 100644
index 000000000000..facea122d812
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-libpython-version.c
@@ -0,0 +1,10 @@
+#include <Python.h>
+
+#if PY_VERSION_HEX >= 0x03000000
+	#error
+#endif
+
+int main(void)
+{
+	return 0;
+}
-- 
cgit 


From 3b7646e45d110f53d4c0fa0a63158c3d2a763e60 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 15:53:31 +0200
Subject: tools/perf/build: Split out feature check: 'libbfd'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-cdxdfv7Corpfvjg9Skezhvjn@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                     | 4 ++--
 tools/perf/config/feature-checks/Makefile      | 4 ++++
 tools/perf/config/feature-checks/test-libbfd.c | 7 +++++++
 3 files changed, 13 insertions(+), 2 deletions(-)
 create mode 100644 tools/perf/config/feature-checks/test-libbfd.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 63ba069868c9..7e139694afc2 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -121,6 +121,7 @@ FEATURE_TESTS =				\
 	libperl				\
 	libpython			\
 	libpython-version		\
+	libbfd				\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -404,8 +405,7 @@ else
     CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
   else
     FLAGS_BFD=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) -DPACKAGE='perf' -lbfd
-    has_bfd := $(call try-cc,$(SOURCE_BFD),$(FLAGS_BFD),libbfd)
-    ifeq ($(has_bfd),y)
+    ifeq ($(feature-libbfd), 1)
       EXTLIBS += -lbfd
     else
       FLAGS_BFD_IBERTY=$(FLAGS_BFD) -liberty
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index d15074d77243..af65aaa93e16 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -19,6 +19,7 @@ FILES=					\
 	test-libperl			\
 	test-libpython			\
 	test-libpython-version		\
+	test-libbfd			\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -112,6 +113,9 @@ test-libpython:
 test-libpython-version:
 	$(BUILD) $(FLAGS_PYTHON_EMBED)
 
+test-libbfd:
+	$(BUILD) -DPACKAGE='perf' -DPACKAGE=perf -lbfd -ldl
+
 -include *.d */*.d
 
 ###############################
diff --git a/tools/perf/config/feature-checks/test-libbfd.c b/tools/perf/config/feature-checks/test-libbfd.c
new file mode 100644
index 000000000000..d03339c995d7
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-libbfd.c
@@ -0,0 +1,7 @@
+#include <bfd.h>
+
+int main(void)
+{
+	bfd_demangle(0, 0, 0);
+	return 0;
+}
-- 
cgit 


From d0707c9172e5d286fc119dcef5ea1621ef3bfade Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Tue, 8 Oct 2013 10:10:45 +0200
Subject: tools/perf/build: Split out feature check: 'strlcpy'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-ektO8cgvupthhyqqczSok2sr@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                      | 3 ++-
 tools/perf/config/feature-checks/Makefile       | 4 ++++
 tools/perf/config/feature-checks/test-strlcpy.c | 8 ++++++++
 3 files changed, 14 insertions(+), 1 deletion(-)
 create mode 100644 tools/perf/config/feature-checks/test-strlcpy.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 7e139694afc2..c8ac4df05db1 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -121,6 +121,7 @@ FEATURE_TESTS =				\
 	libperl				\
 	libpython			\
 	libpython-version		\
+	strlcpy				\
 	libbfd				\
 	libnuma
 
@@ -434,7 +435,7 @@ else
 endif
 
 ifndef NO_STRLCPY
-  ifeq ($(call try-cc,$(SOURCE_STRLCPY),,-DHAVE_STRLCPY_SUPPORT),y)
+  ifeq ($(feature-strlcpy), 1)
     CFLAGS += -DHAVE_STRLCPY_SUPPORT
   endif
 endif
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index af65aaa93e16..d348aa0ec181 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -19,6 +19,7 @@ FILES=					\
 	test-libperl			\
 	test-libpython			\
 	test-libpython-version		\
+	test-strlcpy			\
 	test-libbfd			\
 	test-libnuma
 
@@ -113,6 +114,9 @@ test-libpython:
 test-libpython-version:
 	$(BUILD) $(FLAGS_PYTHON_EMBED)
 
+test-strlcpy:
+	$(BUILD)
+
 test-libbfd:
 	$(BUILD) -DPACKAGE='perf' -DPACKAGE=perf -lbfd -ldl
 
diff --git a/tools/perf/config/feature-checks/test-strlcpy.c b/tools/perf/config/feature-checks/test-strlcpy.c
new file mode 100644
index 000000000000..4a6b6ff06f74
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-strlcpy.c
@@ -0,0 +1,8 @@
+#include <stdlib.h>
+extern size_t strlcpy(char *dest, const char *src, size_t size);
+
+int main(void)
+{
+	strlcpy(NULL, NULL, 0);
+	return 0;
+}
-- 
cgit 


From 34ef21622f9028efafe7950504a9ce90d9cc15a0 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 16:46:49 +0200
Subject: tools/perf/build: Split out feature check: 'on-exit'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-gmywXandzfxnlcbzlX6bkpw1@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                      | 3 ++-
 tools/perf/config/feature-checks/Makefile       | 4 ++++
 tools/perf/config/feature-checks/test-on-exit.c | 6 ++++++
 3 files changed, 12 insertions(+), 1 deletion(-)
 create mode 100644 tools/perf/config/feature-checks/test-on-exit.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index c8ac4df05db1..44affb5477c5 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -123,6 +123,7 @@ FEATURE_TESTS =				\
 	libpython-version		\
 	strlcpy				\
 	libbfd				\
+	on-exit				\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -441,7 +442,7 @@ ifndef NO_STRLCPY
 endif
 
 ifndef NO_ON_EXIT
-  ifeq ($(call try-cc,$(SOURCE_ON_EXIT),,-DHAVE_ON_EXIT_SUPPORT),y)
+  ifeq ($(feature-on-exit), 1)
     CFLAGS += -DHAVE_ON_EXIT_SUPPORT
   endif
 endif
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index d348aa0ec181..20f1b8c0f865 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -21,6 +21,7 @@ FILES=					\
 	test-libpython-version		\
 	test-strlcpy			\
 	test-libbfd			\
+	test-on-exit			\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -120,6 +121,9 @@ test-strlcpy:
 test-libbfd:
 	$(BUILD) -DPACKAGE='perf' -DPACKAGE=perf -lbfd -ldl
 
+test-on-exit:
+	$(BUILD)
+
 -include *.d */*.d
 
 ###############################
diff --git a/tools/perf/config/feature-checks/test-on-exit.c b/tools/perf/config/feature-checks/test-on-exit.c
new file mode 100644
index 000000000000..473f1dea5316
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-on-exit.c
@@ -0,0 +1,6 @@
+#include <stdio.h>
+
+int main(void)
+{
+	return on_exit(NULL, NULL);
+}
-- 
cgit 


From 4cc9117a35b2810fb84454514a9136e5f2945751 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 30 Sep 2013 16:49:38 +0200
Subject: tools/perf/build: Split out feature check: 'backtrace'

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-ihnwe6cvglVkudyvcavP1wql@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                        |  3 ++-
 tools/perf/config/feature-checks/Makefile         |  4 ++++
 tools/perf/config/feature-checks/test-backtrace.c | 10 ++++++++++
 3 files changed, 16 insertions(+), 1 deletion(-)
 create mode 100644 tools/perf/config/feature-checks/test-backtrace.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 44affb5477c5..c0c83440de97 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -124,6 +124,7 @@ FEATURE_TESTS =				\
 	strlcpy				\
 	libbfd				\
 	on-exit				\
+	backtrace			\
 	libnuma
 
 $(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
@@ -448,7 +449,7 @@ ifndef NO_ON_EXIT
 endif
 
 ifndef NO_BACKTRACE
-  ifeq ($(call try-cc,$(SOURCE_BACKTRACE),,-DHAVE_BACKTRACE_SUPPORT),y)
+  ifeq ($(feature-backtrace), 1)
     CFLAGS += -DHAVE_BACKTRACE_SUPPORT
   endif
 endif
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 20f1b8c0f865..0e4dbc2d5c8a 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -22,6 +22,7 @@ FILES=					\
 	test-strlcpy			\
 	test-libbfd			\
 	test-on-exit			\
+	test-backtrace			\
 	test-libnuma
 
 CC := $(CC) -MD
@@ -124,6 +125,9 @@ test-libbfd:
 test-on-exit:
 	$(BUILD)
 
+test-backtrace:
+	$(BUILD)
+
 -include *.d */*.d
 
 ###############################
diff --git a/tools/perf/config/feature-checks/test-backtrace.c b/tools/perf/config/feature-checks/test-backtrace.c
new file mode 100644
index 000000000000..5b79468bea2a
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-backtrace.c
@@ -0,0 +1,10 @@
+#include <execinfo.h>
+#include <stdio.h>
+
+int main(void)
+{
+	backtrace(NULL, 0);
+	backtrace_symbols(NULL, 0);
+
+	return 0;
+}
-- 
cgit 


From 7a10822a30060eceddda16c051086c00acb449c9 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 7 Oct 2013 11:26:18 +0200
Subject: tools/perf: Clean up util/include/linux/compiler.h

Use the standard CPP style we use in the kernel:

 #ifndef foo
 # define foo bar
 #endif

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-iqyVrrHqpn0eiwenvgwrh8lf@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/util/include/linux/compiler.h | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/tools/perf/util/include/linux/compiler.h b/tools/perf/util/include/linux/compiler.h
index 96b919dae11c..bef4d3ddc493 100644
--- a/tools/perf/util/include/linux/compiler.h
+++ b/tools/perf/util/include/linux/compiler.h
@@ -2,20 +2,25 @@
 #define _PERF_LINUX_COMPILER_H_
 
 #ifndef __always_inline
-#define __always_inline	inline
+# define __always_inline	inline __attribute__((always_inline))
 #endif
+
 #define __user
+
 #ifndef __attribute_const__
-#define __attribute_const__
+# define __attribute_const__
 #endif
 
 #ifndef __maybe_unused
-#define __maybe_unused		__attribute__((unused))
+# define __maybe_unused		__attribute__((unused))
+#endif
+
+#ifndef __packed
+# define __packed		__attribute__((__packed__))
 #endif
-#define __packed	__attribute__((__packed__))
 
 #ifndef __force
-#define __force
+# define __force
 #endif
 
 #endif
-- 
cgit 


From fb1c9185e36cf9c616ac15f54e54a01f052672bd Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Tue, 1 Oct 2013 13:26:13 +0200
Subject: tools/perf: Turn strlcpy() into a __weak function

The strlcpy() feature check slows every build unnecessarily - so make it
a __weak function so it does not have to be auto-detected.

If the libc (or any other library) has an strlcpy() implementation it will
be used - otherwise our fallback is active.

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-zjbrcupapu08ePsyYhhhxiwk@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                      |  7 -------
 tools/perf/config/feature-checks/Makefile       |  4 ----
 tools/perf/config/feature-checks/test-strlcpy.c |  8 --------
 tools/perf/util/cache.h                         |  3 +--
 tools/perf/util/include/linux/compiler.h        |  4 ++++
 tools/perf/util/path.c                          | 10 +++++++---
 6 files changed, 12 insertions(+), 24 deletions(-)
 delete mode 100644 tools/perf/config/feature-checks/test-strlcpy.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index c0c83440de97..3207c25b15f0 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -121,7 +121,6 @@ FEATURE_TESTS =				\
 	libperl				\
 	libpython			\
 	libpython-version		\
-	strlcpy				\
 	libbfd				\
 	on-exit				\
 	backtrace			\
@@ -436,12 +435,6 @@ else
   endif
 endif
 
-ifndef NO_STRLCPY
-  ifeq ($(feature-strlcpy), 1)
-    CFLAGS += -DHAVE_STRLCPY_SUPPORT
-  endif
-endif
-
 ifndef NO_ON_EXIT
   ifeq ($(feature-on-exit), 1)
     CFLAGS += -DHAVE_ON_EXIT_SUPPORT
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 0e4dbc2d5c8a..c65bdac0ebe2 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -19,7 +19,6 @@ FILES=					\
 	test-libperl			\
 	test-libpython			\
 	test-libpython-version		\
-	test-strlcpy			\
 	test-libbfd			\
 	test-on-exit			\
 	test-backtrace			\
@@ -116,9 +115,6 @@ test-libpython:
 test-libpython-version:
 	$(BUILD) $(FLAGS_PYTHON_EMBED)
 
-test-strlcpy:
-	$(BUILD)
-
 test-libbfd:
 	$(BUILD) -DPACKAGE='perf' -DPACKAGE=perf -lbfd -ldl
 
diff --git a/tools/perf/config/feature-checks/test-strlcpy.c b/tools/perf/config/feature-checks/test-strlcpy.c
deleted file mode 100644
index 4a6b6ff06f74..000000000000
--- a/tools/perf/config/feature-checks/test-strlcpy.c
+++ /dev/null
@@ -1,8 +0,0 @@
-#include <stdlib.h>
-extern size_t strlcpy(char *dest, const char *src, size_t size);
-
-int main(void)
-{
-	strlcpy(NULL, NULL, 0);
-	return 0;
-}
diff --git a/tools/perf/util/cache.h b/tools/perf/util/cache.h
index 442953c1ce85..7b176dd02e1a 100644
--- a/tools/perf/util/cache.h
+++ b/tools/perf/util/cache.h
@@ -70,8 +70,7 @@ extern char *perf_path(const char *fmt, ...) __attribute__((format (printf, 1, 2
 extern char *perf_pathdup(const char *fmt, ...)
 	__attribute__((format (printf, 1, 2)));
 
-#ifndef HAVE_STRLCPY_SUPPORT
+/* Matches the libc/libbsd function attribute so we declare this unconditionally: */
 extern size_t strlcpy(char *dest, const char *src, size_t size);
-#endif
 
 #endif /* __PERF_CACHE_H */
diff --git a/tools/perf/util/include/linux/compiler.h b/tools/perf/util/include/linux/compiler.h
index bef4d3ddc493..b003ad7200b2 100644
--- a/tools/perf/util/include/linux/compiler.h
+++ b/tools/perf/util/include/linux/compiler.h
@@ -23,4 +23,8 @@
 # define __force
 #endif
 
+#ifndef __weak
+# define __weak			__attribute__((weak))
+#endif
+
 #endif
diff --git a/tools/perf/util/path.c b/tools/perf/util/path.c
index f3958743b743..5d13cb45b317 100644
--- a/tools/perf/util/path.c
+++ b/tools/perf/util/path.c
@@ -22,19 +22,23 @@ static const char *get_perf_dir(void)
 	return ".";
 }
 
-#ifndef HAVE_STRLCPY_SUPPORT
-size_t strlcpy(char *dest, const char *src, size_t size)
+/*
+ * If libc has strlcpy() then that version will override this
+ * implementation:
+ */
+size_t __weak strlcpy(char *dest, const char *src, size_t size)
 {
 	size_t ret = strlen(src);
 
 	if (size) {
 		size_t len = (ret >= size) ? size - 1 : ret;
+
 		memcpy(dest, src, len);
 		dest[len] = '\0';
 	}
+
 	return ret;
 }
-#endif
 
 static char *get_pathname(void)
 {
-- 
cgit 


From baa9c30e1e250abf3e53b98e5bcf415dccdc7ba2 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Tue, 1 Oct 2013 14:14:31 +0200
Subject: tools/perf/build: Speed up auto-detection of features by adding a
 'test-all' target

Concatenate all feature checks into test-all.c.

This can be built and checked faster than all the individual tests.

If test-all fails then we still check all the individual features, so
this is a pure speedup, it should have no effects on functionality.

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-5hlcb2qorzwfwrWTjiygjjih@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                  |  45 ++++++-
 tools/perf/config/feature-checks/Makefile   |   3 +
 tools/perf/config/feature-checks/test-all.c | 196 ++++++++++++++++++++++++++++
 3 files changed, 238 insertions(+), 6 deletions(-)
 create mode 100644 tools/perf/config/feature-checks/test-all.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 3207c25b15f0..cbd7cdca3e56 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -89,17 +89,21 @@ CFLAGS += -std=gnu99
 
 EXTLIBS = -lelf -lpthread -lrt -lm -ldl
 
-feature_check = $(eval $(feature_check_code)); $(info CHK: config/feature-checks/test-$(1))
+feature_check = $(eval $(feature_check_code))
 define feature_check_code
-  feature-$(2) := $(shell make -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
+  feature-$(1) := $(shell $(MAKE) -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
+endef
+
+feature_set = $(eval $(feature_set_code))
+define feature_set_code
+  feature-$(1) := 1
 endef
 
 #
 # Build the feature check binaries in parallel, ignore errors, ignore return value and suppress output:
 #
-$(info Testing features:)
-$(shell make -i -j -C config/feature-checks >/dev/null 2>&1)
-$(info done)
+$(info )
+$(info Auto-detecting system features:)
 
 FEATURE_TESTS =				\
 	hello				\
@@ -126,7 +130,36 @@ FEATURE_TESTS =				\
 	backtrace			\
 	libnuma
 
-$(foreach test,$(FEATURE_TESTS),$(call feature_check,$(test),$(test)))
+#
+# Special fast-path for the 'all features are available' case:
+#
+$(call feature_check,all)
+
+ifeq ($(feature-all), 1)
+  $(foreach feat,$(FEATURE_TESTS),$(call feature_set,$(feat)))
+else
+  $(shell $(MAKE) -i -j -C config/feature-checks >/dev/null 2>&1)
+  $(foreach feat,$(FEATURE_TESTS),$(call feature_check,$(feat)))
+endif
+
+feature_print = $(eval $(feature_print_code))
+
+#
+# Print the result of the feature test:
+#
+define feature_print_code
+  ifeq ($(feature-$(1)), 1)
+    MSG := $(shell printf '...%30s: [ \033[32mon\033[m  ]' $(1))
+  else
+    MSG := $(shell printf '...%30s: [ \033[31mOFF\033[m ]' $(1))
+  endif
+  $(info $(MSG))
+endef
+
+$(foreach feat,$(FEATURE_TESTS) DUMMY,$(call feature_print,$(feat)))
+
+# newline at the end of the feature printouts:
+$(info )
 
 ifeq ($(feature-stackprotector-all), 1)
   CFLAGS += -fstack-protector-all
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index c65bdac0ebe2..4b855e0ccd0b 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -32,6 +32,9 @@ BUILD = $(CC) -o $(OUTPUT)$@ $@.c
 
 ###############################
 
+test-all:
+	$(BUILD) -Werror -fstack-protector -fstack-protector-all -Wvolatile-register-var -O2 -Werror -D_FORTIFY_SOURCE=2 -ldw -lelf -lnuma -lunwind -lunwind-x86_64 -lelf -laudit -I/usr/include/slang -lslang $(shell pkg-config --libs --cflags gtk+-2.0 2>/dev/null) $(FLAGS_PERL_EMBED) $(FLAGS_PYTHON_EMBED) -DPACKAGE='perf' -DPACKAGE=perf -lbfd -ldl
+
 test-hello:
 	$(BUILD)
 
diff --git a/tools/perf/config/feature-checks/test-all.c b/tools/perf/config/feature-checks/test-all.c
new file mode 100644
index 000000000000..9f7c4b165305
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-all.c
@@ -0,0 +1,196 @@
+
+#pragma GCC diagnostic ignored "-Wstrict-prototypes"
+
+#include <Python.h>
+
+#include <EXTERN.h>
+#include <perl.h>
+
+#include <stdio.h>
+#include <libelf.h>
+#include <gnu/libc-version.h>
+#include <dwarf.h>
+#include <elfutils/libdw.h>
+#include <elfutils/version.h>
+#include <libelf.h>
+#include <libunwind.h>
+#include <stdlib.h>
+#include <libaudit.h>
+#include <slang.h>
+#include <gtk/gtk.h>
+#include <bfd.h>
+#include <stdio.h>
+#include <execinfo.h>
+#include <stdio.h>
+#include <numa.h>
+#include <numaif.h>
+
+#pragma GCC diagnostic error "-Wstrict-prototypes"
+
+int main1(void)
+{
+	return puts("hi");
+}
+
+int main2(void)
+{
+	return puts("hi");
+}
+
+int main3(void)
+{
+	return puts("hi");
+}
+
+int main4(void)
+{
+	Elf *elf = elf_begin(0, ELF_C_READ, 0);
+	return (long)elf;
+}
+#
+int main5(void)
+{
+	Elf *elf = elf_begin(0, ELF_C_READ_MMAP, 0);
+	return (long)elf;
+}
+
+int main6(void)
+{
+	const char *version = gnu_get_libc_version();
+	return (long)version;
+}
+
+int main7(void)
+{
+	Dwarf *dbg = dwarf_begin(0, DWARF_C_READ);
+	return (long)dbg;
+}
+
+int main8(void)
+{
+	size_t dst;
+	return elf_getphdrnum(0, &dst);
+}
+
+extern int UNW_OBJ(dwarf_search_unwind_table) (unw_addr_space_t as,
+                                      unw_word_t ip,
+                                      unw_dyn_info_t *di,
+                                      unw_proc_info_t *pi,
+                                      int need_unwind_info, void *arg);
+
+
+#define dwarf_search_unwind_table UNW_OBJ(dwarf_search_unwind_table)
+
+int main9(void)
+{
+	unw_addr_space_t addr_space;
+	addr_space = unw_create_addr_space(NULL, 0);
+	unw_init_remote(NULL, addr_space, NULL);
+	dwarf_search_unwind_table(addr_space, 0, NULL, NULL, 0, NULL);
+	return 0;
+}
+
+int main10(void)
+{
+	printf("error message: %s\n", audit_errno_to_name(0));
+	return audit_open();
+}
+
+int main11(void)
+{
+	return SLsmg_init_smg();
+}
+
+int main12(int argc, char *argv[])
+{
+        gtk_init(&argc, &argv);
+
+        return 0;
+}
+
+int main13(void)
+{
+	gtk_info_bar_new();
+
+	return 0;
+}
+
+int main14(void)
+{
+	perl_alloc();
+
+	return 0;
+}
+
+int main15(void)
+{
+	Py_Initialize();
+	return 0;
+}
+
+#if PY_VERSION_HEX >= 0x03000000
+	#error
+#endif
+
+int main16(void)
+{
+	return 0;
+}
+
+int main17(void)
+{
+	bfd_demangle(0, 0, 0);
+	return 0;
+}
+
+void exit_function(int x, void *y)
+{
+}
+
+int main18(void)
+{
+	return on_exit(exit_function, NULL);
+}
+
+int main19(void)
+{
+	void *backtrace_fns[1];
+	size_t entries;
+
+	entries = backtrace(backtrace_fns, 1);
+	backtrace_symbols(backtrace_fns, entries);
+
+	return 0;
+}
+
+int main20(void)
+{
+	numa_available();
+	return 0;
+}
+
+int main(int argc, char *argv[])
+{
+	main1();
+	main2();
+	main3();
+	main4();
+	main5();
+	main6();
+	main7();
+	main8();
+	main9();
+	main10();
+	main11();
+	main12(argc, argv);
+	main13();
+	main14();
+	main15();
+	main16();
+	main17();
+	main18();
+	main19();
+	main20();
+
+	return 0;
+}
-- 
cgit 


From c72e3f04b45fb2e50cdd81a50c3778c6a57251d8 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Tue, 1 Oct 2013 16:28:09 +0200
Subject: tools/perf/build: Speed up git-version test on re-make

util/PERF-VERSION-GEN is currently executed on every build attempt,
and this script can take a lot of time on trees that are at a
significant git-distance from Linus's tree:

  $ time util/PERF-VERSION-GEN

  real    0m4.343s
  user    0m4.176s
  sys     0m0.140s

It also takes a lot of time if the Git repository is network attached, etc.,
because the commands it uses:

        TAG=$(git describe --abbrev=0 --match "v[0-9].[0-9]*" 2>/dev/null )

has to count commits from the nearest tag and thus has to access (and
decompress) every git commit blob on the relevant version path.

Even on Linus's tree it takes 0.28 seconds on a fast box to count all the
commits and get the git version string:

  $ time util/PERF-VERSION-GEN

  real    0m0.279s
  user    0m0.247s
  sys     0m0.025s

But the version string only has to be regenerated if the git repository's
head commit changes. So add a dependency of ../../.git/HEAD and touch
the file every time it's regenerated, so that Make's build rules can
pick it up and cache the result:

  make: `PERF-VERSION-FILE' is up to date.

  real    0m0.184s
  user    0m0.117s
  sys     0m0.026s

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-wvmlrurufuk6mo1ovtNigguT@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/Makefile | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 64c043b7a438..6b5452a120af 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -70,8 +70,9 @@ ifneq ($(OUTPUT),)
 #$(info Determined 'OUTPUT' to be $(OUTPUT))
 endif
 
-$(OUTPUT)PERF-VERSION-FILE: .FORCE-PERF-VERSION-FILE
+$(OUTPUT)PERF-VERSION-FILE: ../../.git/HEAD
 	@$(SHELL_PATH) util/PERF-VERSION-GEN $(OUTPUT)
+	@touch $(OUTPUT)PERF-VERSION-FILE
 
 CC = $(CROSS_COMPILE)gcc
 AR = $(CROSS_COMPILE)ar
@@ -814,6 +815,16 @@ clean: $(LIBTRACEEVENT)-clean $(LIBLK)-clean
 	$(RM) $(OUTPUT)util/*-flex*
 	$(python-clean)
 
+#
+# Trick: if ../../.git does not exist - we are building out of tree for example,
+# then force version regeneration:
+#
+ifeq ($(wildcard ../../.git/HEAD),)
+    GIT-HEAD-PHONY = ../../.git/HEAD
+else
+    GIT-HEAD-PHONY =
+endif
+
 .PHONY: all install clean strip $(LIBTRACEEVENT) $(LIBLK)
 .PHONY: shell_compatibility_test please_set_SHELL_PATH_to_a_more_modern_shell
-.PHONY: .FORCE-PERF-VERSION-FILE TAGS tags cscope .FORCE-PERF-CFLAGS
+.PHONY: $(GIT-HEAD-PHONY) TAGS tags cscope .FORCE-PERF-CFLAGS
-- 
cgit 


From c9404c6650d8f58ce8cf98d4c5581fc5c9e37faf Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Tue, 1 Oct 2013 17:17:22 +0200
Subject: tools/perf/build: Speed up the final link

libtraceevent.a and liblk.a rules have always-missed dependencies,
which causes python.so to be relinked at every build attempt - even
if none of the affected code changes.

This slows down re-builds unnecessarily, by adding more than a second
to the build time:

  comet:~/tip/tools/perf> time make

  ...

    SUBDIR /fast/mingo/tip/tools/lib/lk/
    make[1]: `liblk.a' is up to date.
    SUBDIR /fast/mingo/tip/tools/lib/traceevent/
    LINK perf
    GEN python/perf.so

  real    0m1.701s
  user    0m1.338s
  sys     0m0.301s

Add the (trivial) dependencies to not force a re-link.

This speeds up an empty re-build enormously:

  comet:~/tip/tools/perf> time make

  ...

  real    0m0.207s
  user    0m0.134s
  sys     0m0.028s

[ This adds some coupling between the build dependencies of
  libtraceevent and liblk - but until those stay relatively
  simple this should not be an issue. ]

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-wvmlrurufuk6mo1ovtNigguT@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/Makefile | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 6b5452a120af..df76198d45d4 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -669,15 +669,19 @@ $(LIB_FILE): $(LIB_OBJS)
 	$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(LIB_OBJS)
 
 # libtraceevent.a
-$(LIBTRACEEVENT):
+TE_SOURCES = $(wildcard $(TRACE_EVENT_DIR)*.[ch])
+
+$(LIBTRACEEVENT): $(TE_SOURCES)
 	$(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) libtraceevent.a
 
 $(LIBTRACEEVENT)-clean:
 	$(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) clean
 
+LIBLK_SOURCES = $(wildcard $(LK_PATH)*.[ch])
+
 # if subdir is set, we've been called from above so target has been built
 # already
-$(LIBLK):
+$(LIBLK): $(LIBLK_SOURCES)
 ifeq ($(subdir),)
 	$(QUIET_SUBDIR0)$(LK_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) liblk.a
 endif
@@ -825,6 +829,6 @@ else
     GIT-HEAD-PHONY =
 endif
 
-.PHONY: all install clean strip $(LIBTRACEEVENT) $(LIBLK)
+.PHONY: all install clean strip
 .PHONY: shell_compatibility_test please_set_SHELL_PATH_to_a_more_modern_shell
 .PHONY: $(GIT-HEAD-PHONY) TAGS tags cscope .FORCE-PERF-CFLAGS
-- 
cgit 


From 31f6be65e08d2cbb876b3b5fc9ae9281b7417c85 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 2 Oct 2013 06:51:27 +0200
Subject: tools/perf: Fix double/triple-build of the feature detection logic
 during 'make install' et al

Linus reported the following perf build system bug:

  'Another annoyance during that make was that "make install" seems to
   want to re-make the thing I just built. That's absolutely horrible, [...]'

The thing that got re-built were 'only' the (numerous) feature checks,
not the whole project - but still it was mighty annoying as the feature
checks took 9+ seconds even on reasonably fast boxes.

Even with the autodep patches where feature detection is much faster
it wastes resources, wastes screen real estate and confuses users if
we execute feature detection twice.

There were two sources for these unnecessary re-builds of the feature
checks:

 - Unnecessary nested invocations of $(MAKE), apparently to be able
   to do conditional compilation dependent on documentation tools
   presence. Use straight dependencies instead, with no nesting.

 - A direct invocation of $(MAKE) to rebuild the PERF-VERSION-FILE.
   This is apparently done to be able to include it into the
   Makefile:

    -include $(OUTPUT)PERF-VERSION-FILE

   but that's entirely pointless for two reasons: 1) the version file
   gets regenerated by the initial build pass anyway, 2) including it
   is futile, given its contents:

    #define PERF_VERSION "3.12.rc3.g8510c7"

   'make' will interpret that as a comment line...

   So just remove this part of the doc-generation logic.

With these things fixed a 'make install' now rebuilds only what is needed.

A repeated 'make install' on an already built tree is super fast now,
it finishes in under 0.3 seconds:

  #
  #  After the patch:
  #

  $ time make install

  ...

  real    0m0.280s
  user    0m0.162s
  sys     0m0.054s

Prior all the autodep changes and prior this fix, a repeat 'make install'
took 24.1 seconds (!) on the same system:

  #
  #  Before the patches:
  #

  $ time make install

  ...

  real    0m24.109s
  user    0m21.171s
  sys     0m2.449s

Which almost entirely was caused by fixable build system fat.
We are now literally ~86 times faster.

A fresh rebuild and install now takes just 11.4 seconds:

  #
  #  After the patch:
  #

  $ make clean
  $ time make -j16 install

  ...

  real    0m11.457s
  user    1m43.411s
  sys     0m7.610s

Without the patches it took 27.8 seconds:

  #
  #  Before the patches:
  #

  $ make clean
  $ time make -j16 install

  ...

  real    0m27.801s
  user    1m59.242s
  sys     0m9.749s

So even in the complete rebuild case we are now ~2.5 times faster.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-x4qjnxjGrgxpribq8sdakfTp@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/Documentation/Makefile | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/tools/perf/Documentation/Makefile b/tools/perf/Documentation/Makefile
index 5a37a7c84e69..eaa477f00673 100644
--- a/tools/perf/Documentation/Makefile
+++ b/tools/perf/Documentation/Makefile
@@ -192,13 +192,14 @@ do-install-man: man
 
 install-man: check-man-tools man
 
-try-install-man:
 ifdef missing_tools
-	$(warning Please install $(missing_tools) to have the man pages installed)
+  DO_INSTALL_MAN = $(warning Please install $(missing_tools) to have the man pages installed)
 else
-	$(MAKE) do-install-man
+  DO_INSTALL_MAN = do-install-man
 endif
 
+try-install-man: $(DO_INSTALL_MAN)
+
 install-info: info
 	$(INSTALL) -d -m 755 $(DESTDIR)$(infodir)
 	$(INSTALL) -m 644 $(OUTPUT)perf.info $(OUTPUT)perfman.info $(DESTDIR)$(infodir)
@@ -216,14 +217,6 @@ install-pdf: pdf
 #install-html: html
 #	'$(SHELL_PATH_SQ)' ./install-webdoc.sh $(DESTDIR)$(htmldir)
 
-ifneq ($(MAKECMDGOALS),clean)
-ifneq ($(MAKECMDGOALS),tags)
-$(OUTPUT)PERF-VERSION-FILE: .FORCE-PERF-VERSION-FILE
-	$(QUIET_SUBDIR0)../ $(QUIET_SUBDIR1) $(OUTPUT)PERF-VERSION-FILE
-
--include $(OUTPUT)PERF-VERSION-FILE
-endif
-endif
 
 #
 # Determine "include::" file references in asciidoc files.
@@ -342,5 +335,3 @@ $(patsubst %.txt,%.html,$(wildcard howto/*.txt)): %.html : %.txt
 
 #quick-install-html:
 #	'$(SHELL_PATH_SQ)' ./install-doc-quick.sh $(HTML_REF) $(DESTDIR)$(htmldir)
-
-.PHONY: .FORCE-PERF-VERSION-FILE
-- 
cgit 


From de0f03fb8dc268de63d366e735cc576a22df201b Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 2 Oct 2013 09:43:23 +0200
Subject: tools/perf/build: Invoke feature-checks 'clean' target from the main
 Makefile

config/Makefile is not included for the 'clean' target, so invoke the
config/feature-checks/Makefile 'clean' target from Makefile.perf.

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-sh2cGvmsjbrazarlqre7pVwt@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/Makefile | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index df76198d45d4..6b7779b3760b 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -809,7 +809,14 @@ $(INSTALL_DOC_TARGETS):
 
 ### Cleaning rules
 
-clean: $(LIBTRACEEVENT)-clean $(LIBLK)-clean
+#
+# This is here, not in config/Makefile, because config/Makefile does
+# not get included for the clean target:
+#
+config-clean:
+	@$(MAKE) -C config/feature-checks clean
+
+clean: $(LIBTRACEEVENT)-clean $(LIBLK)-clean config-clean
 	$(RM) $(LIB_OBJS) $(BUILTIN_OBJS) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf.o $(LANG_BINDINGS)
 	$(RM) $(ALL_PROGRAMS) perf
 	$(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope*
@@ -829,6 +836,6 @@ else
     GIT-HEAD-PHONY =
 endif
 
-.PHONY: all install clean strip
+.PHONY: all install clean config-clean strip
 .PHONY: shell_compatibility_test please_set_SHELL_PATH_to_a_more_modern_shell
 .PHONY: $(GIT-HEAD-PHONY) TAGS tags cscope .FORCE-PERF-CFLAGS
-- 
cgit 


From f1138ec66e839ce90c58af0c264db33271d73466 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 2 Oct 2013 09:54:43 +0200
Subject: tools/perf/build: Speed up auto-detection

The detection of certain rarely detected features can be delayed
to when they are actually needed.

So speed up the common case of auto-detection by pre-building only
a core set of features and populating only their feature-flags.

[ Features not listed in CORE_FEATURES need to built explicitly
  via the feature_check() function. ]

(Also order the feature names alphabetically, while at it.)

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-xQkuveknd0gqla1dfxrqKpkl@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                | 49 ++++++++++++++++++-------------
 tools/perf/config/feature-checks/Makefile | 31 +++++++++----------
 2 files changed, 45 insertions(+), 35 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index cbd7cdca3e56..581a94211fea 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -105,30 +105,36 @@ endef
 $(info )
 $(info Auto-detecting system features:)
 
-FEATURE_TESTS =				\
-	hello				\
-	stackprotector-all		\
-	stackprotector			\
-	volatile-register-var		\
+#
+# Note that this is not a complete list of all feature tests, just
+# those that are typically built on a fully configured system.
+#
+# [ Feature tests not mentioned here have to be built explicitly in
+#   the rule that uses them - an example for that is the 'bionic'
+#   feature check. ]
+#
+CORE_FEATURE_TESTS =			\
+	backtrace			\
+	dwarf				\
 	fortify-source			\
-	bionic				\
-	libelf				\
 	glibc				\
-	dwarf				\
-	libelf-mmap			\
-	libelf-getphdrnum		\
-	libunwind			\
-	libaudit			\
-	libslang			\
 	gtk2				\
 	gtk2-infobar			\
+	libaudit			\
+	libbfd				\
+	libelf				\
+	libelf-getphdrnum		\
+	libelf-mmap			\
+	libnuma				\
 	libperl				\
 	libpython			\
 	libpython-version		\
-	libbfd				\
+	libslang			\
+	libunwind			\
 	on-exit				\
-	backtrace			\
-	libnuma
+	stackprotector			\
+	stackprotector-all		\
+	volatile-register-var
 
 #
 # Special fast-path for the 'all features are available' case:
@@ -136,10 +142,13 @@ FEATURE_TESTS =				\
 $(call feature_check,all)
 
 ifeq ($(feature-all), 1)
-  $(foreach feat,$(FEATURE_TESTS),$(call feature_set,$(feat)))
+  #
+  # test-all.c passed - just set all the core feature flags to 1:
+  #
+  $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_set,$(feat)))
 else
-  $(shell $(MAKE) -i -j -C config/feature-checks >/dev/null 2>&1)
-  $(foreach feat,$(FEATURE_TESTS),$(call feature_check,$(feat)))
+  $(shell $(MAKE) -i -j -C config/feature-checks $(CORE_FEATURE_TESTS) >/dev/null 2>&1)
+  $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_check,$(feat)))
 endif
 
 feature_print = $(eval $(feature_print_code))
@@ -156,7 +165,7 @@ define feature_print_code
   $(info $(MSG))
 endef
 
-$(foreach feat,$(FEATURE_TESTS) DUMMY,$(call feature_print,$(feat)))
+$(foreach feat,$(CORE_FEATURE_TESTS) DUMMY,$(call feature_print,$(feat)))
 
 # newline at the end of the feature printouts:
 $(info )
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 4b855e0ccd0b..d4c55acc82bb 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -1,28 +1,29 @@
 
 FILES=					\
-	test-hello			\
-	test-stackprotector-all		\
-	test-stackprotector		\
-	test-volatile-register-var	\
-	test-fortify-source		\
+	test-all			\
+	test-backtrace			\
 	test-bionic			\
-	test-libelf			\
-	test-glibc			\
 	test-dwarf			\
-	test-libelf-mmap		\
-	test-libelf-getphdrnum		\
-	test-libunwind			\
-	test-libaudit			\
-	test-libslang			\
+	test-fortify-source		\
+	test-glibc			\
 	test-gtk2			\
 	test-gtk2-infobar		\
+	test-hello			\
+	test-libaudit			\
+	test-libbfd			\
+	test-libelf			\
+	test-libelf-getphdrnum		\
+	test-libelf-mmap		\
+	test-libnuma			\
 	test-libperl			\
 	test-libpython			\
 	test-libpython-version		\
-	test-libbfd			\
+	test-libslang			\
+	test-libunwind			\
 	test-on-exit			\
-	test-backtrace			\
-	test-libnuma
+	test-stackprotector-all		\
+	test-stackprotector		\
+	test-volatile-register-var
 
 CC := $(CC) -MD
 
-- 
cgit 


From b3b64a12239e758573316df19cbbaf0126887440 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 2 Oct 2013 10:01:42 +0200
Subject: tools/perf/build: Improve printout-of auto-detected features

Change the print-out of auto-detected features by making sure that
repeat invocations of 'make' when all features are successfully
detected do not produce the (rather lengthy) autodetection printout.

( When one or more features are missing then we still print out the
  feature detection table, to make sure people are aware of the
  resulting limitations. )

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-qd8sMsshcjomxqx9bQcufmaa@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile | 42 +++++++++++++++++++++++++++++++++---------
 1 file changed, 33 insertions(+), 9 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 581a94211fea..fb6ec069f541 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -102,8 +102,6 @@ endef
 #
 # Build the feature check binaries in parallel, ignore errors, ignore return value and suppress output:
 #
-$(info )
-$(info Auto-detecting system features:)
 
 #
 # Note that this is not a complete list of all feature tests, just
@@ -136,10 +134,34 @@ CORE_FEATURE_TESTS =			\
 	stackprotector-all		\
 	volatile-register-var
 
+#
+# So here we detect whether test-all was rebuilt, to be able
+# to skip the print-out of the long features list if the file
+# existed before and after it was built:
+#
+ifeq ($(wildcard config/feature-checks/test-all),)
+  test-all-failed := 1
+else
+  test-all-failed := 0
+endif
+
 #
 # Special fast-path for the 'all features are available' case:
 #
-$(call feature_check,all)
+$(call feature_check,all,$(MSG))
+
+#
+# Just in case the build freshly failed, make sure we print the
+# feature matrix:
+#
+ifeq ($(feature-all), 0)
+  test-all-failed := 1
+endif
+
+ifeq ($(test-all-failed),1)
+  $(info )
+  $(info Auto-detecting system features:)
+endif
 
 ifeq ($(feature-all), 1)
   #
@@ -151,11 +173,10 @@ else
   $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_check,$(feat)))
 endif
 
-feature_print = $(eval $(feature_print_code))
-
 #
 # Print the result of the feature test:
 #
+feature_print = $(eval $(feature_print_code))
 define feature_print_code
   ifeq ($(feature-$(1)), 1)
     MSG := $(shell printf '...%30s: [ \033[32mon\033[m  ]' $(1))
@@ -165,10 +186,13 @@ define feature_print_code
   $(info $(MSG))
 endef
 
-$(foreach feat,$(CORE_FEATURE_TESTS) DUMMY,$(call feature_print,$(feat)))
-
-# newline at the end of the feature printouts:
-$(info )
+#
+# Only print out our features if we rebuilt the testcases or if a test failed:
+#
+ifeq ($(test-all-failed), 1)
+  $(foreach feat,$(CORE_FEATURE_TESTS) DUMMY,$(call feature_print,$(feat)))
+  $(info )
+endif
 
 ifeq ($(feature-stackprotector-all), 1)
   CFLAGS += -fstack-protector-all
-- 
cgit 


From 2cfbe880f0a8eed7beabade3e06fd53f999b3e32 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 2 Oct 2013 11:18:28 +0200
Subject: tools/perf/build: Automatically build in parallel, based on number of
 CPUs in the system

Implement automatic parallel builds when building in tools/perf:

  $ time make

  # [ perf build: Doing 'make -j12' parallel build. ]

  Auto-detecting system features:

  ...

  real    0m9.265s
  user    0m59.888s
  sys     0m6.082s

On GNU make achieving this is not particularly easy, it requires a separate
makefile, which then invokes the main Makefile.

( Note: this patch adds Makefile.parallel to show the concept - the two
  makefiles will be flipped in the next patch to avoid having to specify -f
  to get parallelism in the default build. )

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-dvBjwqiTyzrufzkz8oanhpf9@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/Makefile.parallel | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 tools/perf/Makefile.parallel

diff --git a/tools/perf/Makefile.parallel b/tools/perf/Makefile.parallel
new file mode 100644
index 000000000000..ec5e08b577ab
--- /dev/null
+++ b/tools/perf/Makefile.parallel
@@ -0,0 +1,26 @@
+#
+# Do a parallel build with multiple jobs, based on the number of CPUs online
+# in this system: 'make -j8' on a 8-CPU system, etc.
+#
+# (To override it, run 'make JOBS=1' and similar.)
+#
+ifeq ($(JOBS),)
+  JOBS := $(shell grep -c ^processor /proc/cpuinfo 2>/dev/null)
+  ifeq ($(JOBS),)
+    JOBS := 1
+  endif
+endif
+
+export JOBS
+
+$(info $(shell printf '# [ perf build: Doing '\''make \033[33m-j'$(JOBS)'\033[m'\'' parallel build. ]\n'))
+
+#
+# Needed if no target specified:
+#
+all:
+	@$(MAKE) --no-print-directory -j$(JOBS) $@
+
+%:
+	@$(MAKE) --no-print-directory -j$(JOBS) $@
+
-- 
cgit 


From bd69cc286d817a4ce55b8969b0975e42168fe7c0 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 2 Oct 2013 11:49:08 +0200
Subject: tools/perf/build: Flip Makefile.parallel and Makefile.perf

To make it more apparent that there is not change in functionality we introduced
Makefile.parallel separately and now flip it with the main Makefile, which
moves into Makefile.perf.

The renames are:

   Makefile.parallel => Makefile
   Makefile          => Makefile.perf

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-igRfuw9ugbnnpixLd6wpptzl@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/Makefile          | 844 +------------------------------------------
 tools/perf/Makefile.parallel |  26 --
 tools/perf/Makefile.perf     | 842 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 856 insertions(+), 856 deletions(-)
 delete mode 100644 tools/perf/Makefile.parallel
 create mode 100644 tools/perf/Makefile.perf

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 6b7779b3760b..ce7874b73dd9 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -1,841 +1,25 @@
-include ../scripts/Makefile.include
-
-# The default target of this Makefile is...
-all:
-
-include config/utilities.mak
-
-# Define V to have a more verbose compile.
-#
-# Define O to save output files in a separate directory.
-#
-# Define ARCH as name of target architecture if you want cross-builds.
-#
-# Define CROSS_COMPILE as prefix name of compiler if you want cross-builds.
-#
-# Define NO_LIBPERL to disable perl script extension.
-#
-# Define NO_LIBPYTHON to disable python script extension.
-#
-# Define PYTHON to point to the python binary if the default
-# `python' is not correct; for example: PYTHON=python2
-#
-# Define PYTHON_CONFIG to point to the python-config binary if
-# the default `$(PYTHON)-config' is not correct.
-#
-# Define ASCIIDOC8 if you want to format documentation with AsciiDoc 8
-#
-# Define DOCBOOK_XSL_172 if you want to format man pages with DocBook XSL v1.72.
-#
-# Define LDFLAGS=-static to build a static binary.
-#
-# Define EXTRA_CFLAGS=-m64 or EXTRA_CFLAGS=-m32 as appropriate for cross-builds.
-#
-# Define NO_DWARF if you do not want debug-info analysis feature at all.
-#
-# Define WERROR=0 to disable treating any warnings as errors.
-#
-# Define NO_NEWT if you do not want TUI support. (deprecated)
-#
-# Define NO_SLANG if you do not want TUI support.
-#
-# Define NO_GTK2 if you do not want GTK+ GUI support.
-#
-# Define NO_DEMANGLE if you do not want C++ symbol demangling.
-#
-# Define NO_LIBELF if you do not want libelf dependency (e.g. cross-builds)
-#
-# Define NO_LIBUNWIND if you do not want libunwind dependency for dwarf
-# backtrace post unwind.
 #
-# Define NO_BACKTRACE if you do not want stack backtrace debug feature
+# Do a parallel build with multiple jobs, based on the number of CPUs online
+# in this system: 'make -j8' on a 8-CPU system, etc.
 #
-# Define NO_LIBNUMA if you do not want numa perf benchmark
+# (To override it, run 'make JOBS=1' and similar.)
 #
-# Define NO_LIBAUDIT if you do not want libaudit support
-#
-# Define NO_LIBBIONIC if you do not want bionic support
-
-ifeq ($(srctree),)
-srctree := $(patsubst %/,%,$(dir $(shell pwd)))
-srctree := $(patsubst %/,%,$(dir $(srctree)))
-#$(info Determined 'srctree' to be $(srctree))
-endif
-
-ifneq ($(objtree),)
-#$(info Determined 'objtree' to be $(objtree))
-endif
-
-ifneq ($(OUTPUT),)
-#$(info Determined 'OUTPUT' to be $(OUTPUT))
-endif
-
-$(OUTPUT)PERF-VERSION-FILE: ../../.git/HEAD
-	@$(SHELL_PATH) util/PERF-VERSION-GEN $(OUTPUT)
-	@touch $(OUTPUT)PERF-VERSION-FILE
-
-CC = $(CROSS_COMPILE)gcc
-AR = $(CROSS_COMPILE)ar
-
-RM      = rm -f
-MKDIR   = mkdir
-FIND    = find
-INSTALL = install
-FLEX    = flex
-BISON   = bison
-STRIP   = strip
-
-LK_DIR          = $(srctree)/tools/lib/lk/
-TRACE_EVENT_DIR = $(srctree)/tools/lib/traceevent/
-
-# include config/Makefile by default and rule out
-# non-config cases
-config := 1
-
-NON_CONFIG_TARGETS := clean TAGS tags cscope help
-
-ifdef MAKECMDGOALS
-ifeq ($(filter-out $(NON_CONFIG_TARGETS),$(MAKECMDGOALS)),)
-  config := 0
-endif
-endif
-
-ifeq ($(config),1)
-include config/Makefile
-endif
-
-export prefix bindir sharedir sysconfdir
-
-# sparse is architecture-neutral, which means that we need to tell it
-# explicitly what architecture to check for. Fix this up for yours..
-SPARSE_FLAGS = -D__BIG_ENDIAN__ -D__powerpc__
-
-# Guard against environment variables
-BUILTIN_OBJS =
-LIB_H =
-LIB_OBJS =
-PYRF_OBJS =
-SCRIPT_SH =
-
-SCRIPT_SH += perf-archive.sh
-
-grep-libs = $(filter -l%,$(1))
-strip-libs = $(filter-out -l%,$(1))
-
-ifneq ($(OUTPUT),)
-  TE_PATH=$(OUTPUT)
-ifneq ($(subdir),)
-  LK_PATH=$(OUTPUT)/../lib/lk/
-else
-  LK_PATH=$(OUTPUT)
-endif
-else
-  TE_PATH=$(TRACE_EVENT_DIR)
-  LK_PATH=$(LK_DIR)
-endif
-
-LIBTRACEEVENT = $(TE_PATH)libtraceevent.a
-export LIBTRACEEVENT
-
-LIBLK = $(LK_PATH)liblk.a
-export LIBLK
-
-# python extension build directories
-PYTHON_EXTBUILD     := $(OUTPUT)python_ext_build/
-PYTHON_EXTBUILD_LIB := $(PYTHON_EXTBUILD)lib/
-PYTHON_EXTBUILD_TMP := $(PYTHON_EXTBUILD)tmp/
-export PYTHON_EXTBUILD_LIB PYTHON_EXTBUILD_TMP
-
-python-clean := rm -rf $(PYTHON_EXTBUILD) $(OUTPUT)python/perf.so
-
-PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)
-PYTHON_EXT_DEPS := util/python-ext-sources util/setup.py $(LIBTRACEEVENT) $(LIBLK)
-
-$(OUTPUT)python/perf.so: $(PYTHON_EXT_SRCS) $(PYTHON_EXT_DEPS)
-	$(QUIET_GEN)CFLAGS='$(CFLAGS)' $(PYTHON_WORD) util/setup.py \
-	  --quiet build_ext; \
-	mkdir -p $(OUTPUT)python && \
-	cp $(PYTHON_EXTBUILD_LIB)perf.so $(OUTPUT)python/
-#
-# No Perl scripts right now:
-#
-
-SCRIPTS = $(patsubst %.sh,%,$(SCRIPT_SH))
-
-#
-# Single 'perf' binary right now:
-#
-PROGRAMS += $(OUTPUT)perf
-
-# what 'all' will build and 'install' will install, in perfexecdir
-ALL_PROGRAMS = $(PROGRAMS) $(SCRIPTS)
-
-# what 'all' will build but not install in perfexecdir
-OTHER_PROGRAMS = $(OUTPUT)perf
-
-# Set paths to tools early so that they can be used for version tests.
-ifndef SHELL_PATH
-  SHELL_PATH = /bin/sh
-endif
-ifndef PERL_PATH
-  PERL_PATH = /usr/bin/perl
-endif
-
-export PERL_PATH
-
-$(OUTPUT)util/parse-events-flex.c: util/parse-events.l $(OUTPUT)util/parse-events-bison.c
-	$(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/parse-events-flex.h $(PARSER_DEBUG_FLEX) -t util/parse-events.l > $(OUTPUT)util/parse-events-flex.c
-
-$(OUTPUT)util/parse-events-bison.c: util/parse-events.y
-	$(QUIET_BISON)$(BISON) -v util/parse-events.y -d $(PARSER_DEBUG_BISON) -o $(OUTPUT)util/parse-events-bison.c -p parse_events_
-
-$(OUTPUT)util/pmu-flex.c: util/pmu.l $(OUTPUT)util/pmu-bison.c
-	$(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/pmu-flex.h -t util/pmu.l > $(OUTPUT)util/pmu-flex.c
-
-$(OUTPUT)util/pmu-bison.c: util/pmu.y
-	$(QUIET_BISON)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-bison.c -p perf_pmu_
-
-$(OUTPUT)util/parse-events.o: $(OUTPUT)util/parse-events-flex.c $(OUTPUT)util/parse-events-bison.c
-$(OUTPUT)util/pmu.o: $(OUTPUT)util/pmu-flex.c $(OUTPUT)util/pmu-bison.c
-
-LIB_FILE=$(OUTPUT)libperf.a
-
-LIB_H += ../../include/uapi/linux/perf_event.h
-LIB_H += ../../include/linux/rbtree.h
-LIB_H += ../../include/linux/list.h
-LIB_H += ../../include/uapi/linux/const.h
-LIB_H += ../../include/linux/hash.h
-LIB_H += ../../include/linux/stringify.h
-LIB_H += util/include/linux/bitmap.h
-LIB_H += util/include/linux/bitops.h
-LIB_H += util/include/linux/compiler.h
-LIB_H += util/include/linux/const.h
-LIB_H += util/include/linux/ctype.h
-LIB_H += util/include/linux/kernel.h
-LIB_H += util/include/linux/list.h
-LIB_H += util/include/linux/export.h
-LIB_H += util/include/linux/magic.h
-LIB_H += util/include/linux/poison.h
-LIB_H += util/include/linux/prefetch.h
-LIB_H += util/include/linux/rbtree.h
-LIB_H += util/include/linux/rbtree_augmented.h
-LIB_H += util/include/linux/string.h
-LIB_H += util/include/linux/types.h
-LIB_H += util/include/linux/linkage.h
-LIB_H += util/include/asm/asm-offsets.h
-LIB_H += util/include/asm/bug.h
-LIB_H += util/include/asm/byteorder.h
-LIB_H += util/include/asm/hweight.h
-LIB_H += util/include/asm/swab.h
-LIB_H += util/include/asm/system.h
-LIB_H += util/include/asm/uaccess.h
-LIB_H += util/include/dwarf-regs.h
-LIB_H += util/include/asm/dwarf2.h
-LIB_H += util/include/asm/cpufeature.h
-LIB_H += util/include/asm/unistd_32.h
-LIB_H += util/include/asm/unistd_64.h
-LIB_H += perf.h
-LIB_H += util/annotate.h
-LIB_H += util/cache.h
-LIB_H += util/callchain.h
-LIB_H += util/build-id.h
-LIB_H += util/debug.h
-LIB_H += util/sysfs.h
-LIB_H += util/pmu.h
-LIB_H += util/event.h
-LIB_H += util/evsel.h
-LIB_H += util/evlist.h
-LIB_H += util/exec_cmd.h
-LIB_H += util/types.h
-LIB_H += util/levenshtein.h
-LIB_H += util/machine.h
-LIB_H += util/map.h
-LIB_H += util/parse-options.h
-LIB_H += util/parse-events.h
-LIB_H += util/quote.h
-LIB_H += util/util.h
-LIB_H += util/xyarray.h
-LIB_H += util/header.h
-LIB_H += util/help.h
-LIB_H += util/session.h
-LIB_H += util/strbuf.h
-LIB_H += util/strlist.h
-LIB_H += util/strfilter.h
-LIB_H += util/svghelper.h
-LIB_H += util/tool.h
-LIB_H += util/run-command.h
-LIB_H += util/sigchain.h
-LIB_H += util/dso.h
-LIB_H += util/symbol.h
-LIB_H += util/color.h
-LIB_H += util/values.h
-LIB_H += util/sort.h
-LIB_H += util/hist.h
-LIB_H += util/thread.h
-LIB_H += util/thread_map.h
-LIB_H += util/trace-event.h
-LIB_H += util/probe-finder.h
-LIB_H += util/dwarf-aux.h
-LIB_H += util/probe-event.h
-LIB_H += util/pstack.h
-LIB_H += util/cpumap.h
-LIB_H += util/top.h
-LIB_H += $(ARCH_INCLUDE)
-LIB_H += util/cgroup.h
-LIB_H += $(LIB_INCLUDE)traceevent/event-parse.h
-LIB_H += util/target.h
-LIB_H += util/rblist.h
-LIB_H += util/intlist.h
-LIB_H += util/perf_regs.h
-LIB_H += util/unwind.h
-LIB_H += util/vdso.h
-LIB_H += ui/helpline.h
-LIB_H += ui/progress.h
-LIB_H += ui/util.h
-LIB_H += ui/ui.h
-
-LIB_OBJS += $(OUTPUT)util/abspath.o
-LIB_OBJS += $(OUTPUT)util/alias.o
-LIB_OBJS += $(OUTPUT)util/annotate.o
-LIB_OBJS += $(OUTPUT)util/build-id.o
-LIB_OBJS += $(OUTPUT)util/config.o
-LIB_OBJS += $(OUTPUT)util/ctype.o
-LIB_OBJS += $(OUTPUT)util/sysfs.o
-LIB_OBJS += $(OUTPUT)util/pmu.o
-LIB_OBJS += $(OUTPUT)util/environment.o
-LIB_OBJS += $(OUTPUT)util/event.o
-LIB_OBJS += $(OUTPUT)util/evlist.o
-LIB_OBJS += $(OUTPUT)util/evsel.o
-LIB_OBJS += $(OUTPUT)util/exec_cmd.o
-LIB_OBJS += $(OUTPUT)util/help.o
-LIB_OBJS += $(OUTPUT)util/levenshtein.o
-LIB_OBJS += $(OUTPUT)util/parse-options.o
-LIB_OBJS += $(OUTPUT)util/parse-events.o
-LIB_OBJS += $(OUTPUT)util/path.o
-LIB_OBJS += $(OUTPUT)util/rbtree.o
-LIB_OBJS += $(OUTPUT)util/bitmap.o
-LIB_OBJS += $(OUTPUT)util/hweight.o
-LIB_OBJS += $(OUTPUT)util/run-command.o
-LIB_OBJS += $(OUTPUT)util/quote.o
-LIB_OBJS += $(OUTPUT)util/strbuf.o
-LIB_OBJS += $(OUTPUT)util/string.o
-LIB_OBJS += $(OUTPUT)util/strlist.o
-LIB_OBJS += $(OUTPUT)util/strfilter.o
-LIB_OBJS += $(OUTPUT)util/top.o
-LIB_OBJS += $(OUTPUT)util/usage.o
-LIB_OBJS += $(OUTPUT)util/wrapper.o
-LIB_OBJS += $(OUTPUT)util/sigchain.o
-LIB_OBJS += $(OUTPUT)util/dso.o
-LIB_OBJS += $(OUTPUT)util/symbol.o
-LIB_OBJS += $(OUTPUT)util/symbol-elf.o
-LIB_OBJS += $(OUTPUT)util/color.o
-LIB_OBJS += $(OUTPUT)util/pager.o
-LIB_OBJS += $(OUTPUT)util/header.o
-LIB_OBJS += $(OUTPUT)util/callchain.o
-LIB_OBJS += $(OUTPUT)util/values.o
-LIB_OBJS += $(OUTPUT)util/debug.o
-LIB_OBJS += $(OUTPUT)util/machine.o
-LIB_OBJS += $(OUTPUT)util/map.o
-LIB_OBJS += $(OUTPUT)util/pstack.o
-LIB_OBJS += $(OUTPUT)util/session.o
-LIB_OBJS += $(OUTPUT)util/thread.o
-LIB_OBJS += $(OUTPUT)util/thread_map.o
-LIB_OBJS += $(OUTPUT)util/trace-event-parse.o
-LIB_OBJS += $(OUTPUT)util/parse-events-flex.o
-LIB_OBJS += $(OUTPUT)util/parse-events-bison.o
-LIB_OBJS += $(OUTPUT)util/pmu-flex.o
-LIB_OBJS += $(OUTPUT)util/pmu-bison.o
-LIB_OBJS += $(OUTPUT)util/trace-event-read.o
-LIB_OBJS += $(OUTPUT)util/trace-event-info.o
-LIB_OBJS += $(OUTPUT)util/trace-event-scripting.o
-LIB_OBJS += $(OUTPUT)util/svghelper.o
-LIB_OBJS += $(OUTPUT)util/sort.o
-LIB_OBJS += $(OUTPUT)util/hist.o
-LIB_OBJS += $(OUTPUT)util/probe-event.o
-LIB_OBJS += $(OUTPUT)util/util.o
-LIB_OBJS += $(OUTPUT)util/xyarray.o
-LIB_OBJS += $(OUTPUT)util/cpumap.o
-LIB_OBJS += $(OUTPUT)util/cgroup.o
-LIB_OBJS += $(OUTPUT)util/target.o
-LIB_OBJS += $(OUTPUT)util/rblist.o
-LIB_OBJS += $(OUTPUT)util/intlist.o
-LIB_OBJS += $(OUTPUT)util/vdso.o
-LIB_OBJS += $(OUTPUT)util/stat.o
-LIB_OBJS += $(OUTPUT)util/record.o
-
-LIB_OBJS += $(OUTPUT)ui/setup.o
-LIB_OBJS += $(OUTPUT)ui/helpline.o
-LIB_OBJS += $(OUTPUT)ui/progress.o
-LIB_OBJS += $(OUTPUT)ui/util.o
-LIB_OBJS += $(OUTPUT)ui/hist.o
-LIB_OBJS += $(OUTPUT)ui/stdio/hist.o
-
-LIB_OBJS += $(OUTPUT)arch/common.o
-
-LIB_OBJS += $(OUTPUT)tests/parse-events.o
-LIB_OBJS += $(OUTPUT)tests/dso-data.o
-LIB_OBJS += $(OUTPUT)tests/attr.o
-LIB_OBJS += $(OUTPUT)tests/vmlinux-kallsyms.o
-LIB_OBJS += $(OUTPUT)tests/open-syscall.o
-LIB_OBJS += $(OUTPUT)tests/open-syscall-all-cpus.o
-LIB_OBJS += $(OUTPUT)tests/open-syscall-tp-fields.o
-LIB_OBJS += $(OUTPUT)tests/mmap-basic.o
-LIB_OBJS += $(OUTPUT)tests/perf-record.o
-LIB_OBJS += $(OUTPUT)tests/rdpmc.o
-LIB_OBJS += $(OUTPUT)tests/evsel-roundtrip-name.o
-LIB_OBJS += $(OUTPUT)tests/evsel-tp-sched.o
-LIB_OBJS += $(OUTPUT)tests/pmu.o
-LIB_OBJS += $(OUTPUT)tests/hists_link.o
-LIB_OBJS += $(OUTPUT)tests/python-use.o
-LIB_OBJS += $(OUTPUT)tests/bp_signal.o
-LIB_OBJS += $(OUTPUT)tests/bp_signal_overflow.o
-LIB_OBJS += $(OUTPUT)tests/task-exit.o
-LIB_OBJS += $(OUTPUT)tests/sw-clock.o
-ifeq ($(ARCH),x86)
-LIB_OBJS += $(OUTPUT)tests/perf-time-to-tsc.o
-endif
-LIB_OBJS += $(OUTPUT)tests/code-reading.o
-LIB_OBJS += $(OUTPUT)tests/sample-parsing.o
-LIB_OBJS += $(OUTPUT)tests/parse-no-sample-id-all.o
-
-BUILTIN_OBJS += $(OUTPUT)builtin-annotate.o
-BUILTIN_OBJS += $(OUTPUT)builtin-bench.o
-# Benchmark modules
-BUILTIN_OBJS += $(OUTPUT)bench/sched-messaging.o
-BUILTIN_OBJS += $(OUTPUT)bench/sched-pipe.o
-ifeq ($(RAW_ARCH),x86_64)
-BUILTIN_OBJS += $(OUTPUT)bench/mem-memcpy-x86-64-asm.o
-BUILTIN_OBJS += $(OUTPUT)bench/mem-memset-x86-64-asm.o
-endif
-BUILTIN_OBJS += $(OUTPUT)bench/mem-memcpy.o
-BUILTIN_OBJS += $(OUTPUT)bench/mem-memset.o
-
-BUILTIN_OBJS += $(OUTPUT)builtin-diff.o
-BUILTIN_OBJS += $(OUTPUT)builtin-evlist.o
-BUILTIN_OBJS += $(OUTPUT)builtin-help.o
-BUILTIN_OBJS += $(OUTPUT)builtin-sched.o
-BUILTIN_OBJS += $(OUTPUT)builtin-buildid-list.o
-BUILTIN_OBJS += $(OUTPUT)builtin-buildid-cache.o
-BUILTIN_OBJS += $(OUTPUT)builtin-list.o
-BUILTIN_OBJS += $(OUTPUT)builtin-record.o
-BUILTIN_OBJS += $(OUTPUT)builtin-report.o
-BUILTIN_OBJS += $(OUTPUT)builtin-stat.o
-BUILTIN_OBJS += $(OUTPUT)builtin-timechart.o
-BUILTIN_OBJS += $(OUTPUT)builtin-top.o
-BUILTIN_OBJS += $(OUTPUT)builtin-script.o
-BUILTIN_OBJS += $(OUTPUT)builtin-probe.o
-BUILTIN_OBJS += $(OUTPUT)builtin-kmem.o
-BUILTIN_OBJS += $(OUTPUT)builtin-lock.o
-BUILTIN_OBJS += $(OUTPUT)builtin-kvm.o
-BUILTIN_OBJS += $(OUTPUT)builtin-inject.o
-BUILTIN_OBJS += $(OUTPUT)tests/builtin-test.o
-BUILTIN_OBJS += $(OUTPUT)builtin-mem.o
-
-PERFLIBS = $(LIB_FILE) $(LIBLK) $(LIBTRACEEVENT)
-
-# We choose to avoid "if .. else if .. else .. endif endif"
-# because maintaining the nesting to match is a pain.  If
-# we had "elif" things would have been much nicer...
-
--include arch/$(ARCH)/Makefile
-
-ifneq ($(OUTPUT),)
-  CFLAGS += -I$(OUTPUT)
-endif
-
-ifdef NO_LIBELF
-EXTLIBS := $(filter-out -lelf,$(EXTLIBS))
-
-# Remove ELF/DWARF dependent codes
-LIB_OBJS := $(filter-out $(OUTPUT)util/symbol-elf.o,$(LIB_OBJS))
-LIB_OBJS := $(filter-out $(OUTPUT)util/dwarf-aux.o,$(LIB_OBJS))
-LIB_OBJS := $(filter-out $(OUTPUT)util/probe-event.o,$(LIB_OBJS))
-LIB_OBJS := $(filter-out $(OUTPUT)util/probe-finder.o,$(LIB_OBJS))
-
-BUILTIN_OBJS := $(filter-out $(OUTPUT)builtin-probe.o,$(BUILTIN_OBJS))
-
-# Use minimal symbol handling
-LIB_OBJS += $(OUTPUT)util/symbol-minimal.o
-
-else # NO_LIBELF
-ifndef NO_DWARF
-  LIB_OBJS += $(OUTPUT)util/probe-finder.o
-  LIB_OBJS += $(OUTPUT)util/dwarf-aux.o
-endif # NO_DWARF
-endif # NO_LIBELF
-
-ifndef NO_LIBUNWIND
-  LIB_OBJS += $(OUTPUT)util/unwind.o
-endif
-LIB_OBJS += $(OUTPUT)tests/keep-tracking.o
-
-ifndef NO_LIBAUDIT
-  BUILTIN_OBJS += $(OUTPUT)builtin-trace.o
-endif
-
-ifndef NO_SLANG
-  LIB_OBJS += $(OUTPUT)ui/browser.o
-  LIB_OBJS += $(OUTPUT)ui/browsers/annotate.o
-  LIB_OBJS += $(OUTPUT)ui/browsers/hists.o
-  LIB_OBJS += $(OUTPUT)ui/browsers/map.o
-  LIB_OBJS += $(OUTPUT)ui/browsers/scripts.o
-  LIB_OBJS += $(OUTPUT)ui/tui/setup.o
-  LIB_OBJS += $(OUTPUT)ui/tui/util.o
-  LIB_OBJS += $(OUTPUT)ui/tui/helpline.o
-  LIB_OBJS += $(OUTPUT)ui/tui/progress.o
-  LIB_H += ui/browser.h
-  LIB_H += ui/browsers/map.h
-  LIB_H += ui/keysyms.h
-  LIB_H += ui/libslang.h
-endif
-
-ifndef NO_GTK2
-  LIB_OBJS += $(OUTPUT)ui/gtk/browser.o
-  LIB_OBJS += $(OUTPUT)ui/gtk/hists.o
-  LIB_OBJS += $(OUTPUT)ui/gtk/setup.o
-  LIB_OBJS += $(OUTPUT)ui/gtk/util.o
-  LIB_OBJS += $(OUTPUT)ui/gtk/helpline.o
-  LIB_OBJS += $(OUTPUT)ui/gtk/progress.o
-  LIB_OBJS += $(OUTPUT)ui/gtk/annotate.o
-endif
-
-ifndef NO_LIBPERL
-  LIB_OBJS += $(OUTPUT)util/scripting-engines/trace-event-perl.o
-  LIB_OBJS += $(OUTPUT)scripts/perl/Perf-Trace-Util/Context.o
-endif
-
-ifndef NO_LIBPYTHON
-  LIB_OBJS += $(OUTPUT)util/scripting-engines/trace-event-python.o
-  LIB_OBJS += $(OUTPUT)scripts/python/Perf-Trace-Util/Context.o
-endif
-
-ifeq ($(NO_PERF_REGS),0)
-  ifeq ($(ARCH),x86)
-    LIB_H += arch/x86/include/perf_regs.h
+ifeq ($(JOBS),)
+  JOBS := $(shell grep -c ^processor /proc/cpuinfo 2>/dev/null)
+  ifeq ($(JOBS),)
+    JOBS := 1
   endif
 endif
 
-ifndef NO_LIBNUMA
-  BUILTIN_OBJS += $(OUTPUT)bench/numa.o
-endif
-
-ifdef ASCIIDOC8
-  export ASCIIDOC8
-endif
-
-LIBS = -Wl,--whole-archive $(PERFLIBS) -Wl,--no-whole-archive -Wl,--start-group $(EXTLIBS) -Wl,--end-group
-
-export INSTALL SHELL_PATH
-
-### Build rules
-
-SHELL = $(SHELL_PATH)
-
-all: shell_compatibility_test $(ALL_PROGRAMS) $(LANG_BINDINGS) $(OTHER_PROGRAMS)
-
-please_set_SHELL_PATH_to_a_more_modern_shell:
-	@$$(:)
-
-shell_compatibility_test: please_set_SHELL_PATH_to_a_more_modern_shell
-
-strip: $(PROGRAMS) $(OUTPUT)perf
-	$(STRIP) $(STRIP_OPTS) $(PROGRAMS) $(OUTPUT)perf
-
-$(OUTPUT)perf.o: perf.c $(OUTPUT)common-cmds.h $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -include $(OUTPUT)PERF-VERSION-FILE \
-		'-DPERF_HTML_PATH="$(htmldir_SQ)"' \
-		$(CFLAGS) -c $(filter %.c,$^) -o $@
-
-$(OUTPUT)perf: $(OUTPUT)perf.o $(BUILTIN_OBJS) $(PERFLIBS)
-	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(OUTPUT)perf.o \
-               $(BUILTIN_OBJS) $(LIBS) -o $@
-
-$(OUTPUT)builtin-help.o: builtin-help.c $(OUTPUT)common-cmds.h $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) \
-		'-DPERF_HTML_PATH="$(htmldir_SQ)"' \
-		'-DPERF_MAN_PATH="$(mandir_SQ)"' \
-		'-DPERF_INFO_PATH="$(infodir_SQ)"' $<
-
-$(OUTPUT)builtin-timechart.o: builtin-timechart.c $(OUTPUT)common-cmds.h $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) \
-		'-DPERF_HTML_PATH="$(htmldir_SQ)"' \
-		'-DPERF_MAN_PATH="$(mandir_SQ)"' \
-		'-DPERF_INFO_PATH="$(infodir_SQ)"' $<
-
-$(OUTPUT)common-cmds.h: util/generate-cmdlist.sh command-list.txt
-
-$(OUTPUT)common-cmds.h: $(wildcard Documentation/perf-*.txt)
-	$(QUIET_GEN). util/generate-cmdlist.sh > $@+ && mv $@+ $@
-
-$(SCRIPTS) : % : %.sh
-	$(QUIET_GEN)$(INSTALL) '$@.sh' '$(OUTPUT)$@'
-
-# These can record PERF_VERSION
-$(OUTPUT)perf.o perf.spec \
-	$(SCRIPTS) \
-	: $(OUTPUT)PERF-VERSION-FILE
-
-.SUFFIXES:
-.SUFFIXES: .o .c .S .s
-
-# These two need to be here so that when O= is not used they take precedence
-# over the general rule for .o
-
-$(OUTPUT)util/%-flex.o: $(OUTPUT)util/%-flex.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c -Iutil/ $(CFLAGS) -w $<
-
-$(OUTPUT)util/%-bison.o: $(OUTPUT)util/%-bison.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c -Iutil/ $(CFLAGS) -DYYENABLE_NLS=0 -DYYLTYPE_IS_TRIVIAL=0 -w $<
-
-$(OUTPUT)%.o: %.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $<
-$(OUTPUT)%.i: %.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -E $(CFLAGS) $<
-$(OUTPUT)%.s: %.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -S $(CFLAGS) $<
-$(OUTPUT)%.o: %.S
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $<
-$(OUTPUT)%.s: %.S
-	$(QUIET_CC)$(CC) -o $@ -E $(CFLAGS) $<
-
-$(OUTPUT)util/exec_cmd.o: util/exec_cmd.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) \
-		'-DPERF_EXEC_PATH="$(perfexecdir_SQ)"' \
-		'-DPREFIX="$(prefix_SQ)"' \
-		$<
-
-$(OUTPUT)tests/attr.o: tests/attr.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) \
-		'-DBINDIR="$(bindir_SQ)"' -DPYTHON='"$(PYTHON_WORD)"' \
-		$<
-
-$(OUTPUT)tests/python-use.o: tests/python-use.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) \
-		-DPYTHONPATH='"$(OUTPUT)python"' \
-		-DPYTHON='"$(PYTHON_WORD)"' \
-		$<
-
-$(OUTPUT)util/config.o: util/config.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $<
-
-$(OUTPUT)ui/browser.o: ui/browser.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<
-
-$(OUTPUT)ui/browsers/annotate.o: ui/browsers/annotate.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<
-
-$(OUTPUT)ui/browsers/hists.o: ui/browsers/hists.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<
-
-$(OUTPUT)ui/browsers/map.o: ui/browsers/map.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<
+export JOBS
 
-$(OUTPUT)ui/browsers/scripts.o: ui/browsers/scripts.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<
-
-$(OUTPUT)util/rbtree.o: ../../lib/rbtree.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -Wno-unused-parameter -DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $<
-
-$(OUTPUT)util/parse-events.o: util/parse-events.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -Wno-redundant-decls $<
-
-$(OUTPUT)util/scripting-engines/trace-event-perl.o: util/scripting-engines/trace-event-perl.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow -Wno-undef -Wno-switch-default $<
-
-$(OUTPUT)scripts/perl/Perf-Trace-Util/Context.o: scripts/perl/Perf-Trace-Util/Context.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-nested-externs -Wno-undef -Wno-switch-default $<
-
-$(OUTPUT)util/scripting-engines/trace-event-python.o: util/scripting-engines/trace-event-python.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $(PYTHON_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow $<
-
-$(OUTPUT)scripts/python/Perf-Trace-Util/Context.o: scripts/python/Perf-Trace-Util/Context.c $(OUTPUT)PERF-CFLAGS
-	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $(PYTHON_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-nested-externs $<
-
-$(OUTPUT)perf-%: %.o $(PERFLIBS)
-	$(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $(LDFLAGS) $(filter %.o,$^) $(LIBS)
-
-$(LIB_OBJS) $(BUILTIN_OBJS): $(LIB_H)
-$(patsubst perf-%,%.o,$(PROGRAMS)): $(LIB_H) $(wildcard */*.h)
-
-# we compile into subdirectories. if the target directory is not the source directory, they might not exists. So
-# we depend the various files onto their directories.
-DIRECTORY_DEPS = $(LIB_OBJS) $(BUILTIN_OBJS) $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h
-$(DIRECTORY_DEPS): | $(sort $(dir $(DIRECTORY_DEPS)))
-# In the second step, we make a rule to actually create these directories
-$(sort $(dir $(DIRECTORY_DEPS))):
-	$(QUIET_MKDIR)$(MKDIR) -p $@ 2>/dev/null
-
-$(LIB_FILE): $(LIB_OBJS)
-	$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(LIB_OBJS)
-
-# libtraceevent.a
-TE_SOURCES = $(wildcard $(TRACE_EVENT_DIR)*.[ch])
-
-$(LIBTRACEEVENT): $(TE_SOURCES)
-	$(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) libtraceevent.a
-
-$(LIBTRACEEVENT)-clean:
-	$(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) clean
-
-LIBLK_SOURCES = $(wildcard $(LK_PATH)*.[ch])
-
-# if subdir is set, we've been called from above so target has been built
-# already
-$(LIBLK): $(LIBLK_SOURCES)
-ifeq ($(subdir),)
-	$(QUIET_SUBDIR0)$(LK_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) liblk.a
-endif
-
-$(LIBLK)-clean:
-ifeq ($(subdir),)
-	$(QUIET_SUBDIR0)$(LK_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) clean
-endif
-
-help:
-	@echo 'Perf make targets:'
-	@echo '  doc		- make *all* documentation (see below)'
-	@echo '  man		- make manpage documentation (access with man <foo>)'
-	@echo '  html		- make html documentation'
-	@echo '  info		- make GNU info documentation (access with info <foo>)'
-	@echo '  pdf		- make pdf documentation'
-	@echo '  TAGS		- use etags to make tag information for source browsing'
-	@echo '  tags		- use ctags to make tag information for source browsing'
-	@echo '  cscope	- use cscope to make interactive browsing database'
-	@echo ''
-	@echo 'Perf install targets:'
-	@echo '  NOTE: documentation build requires asciidoc, xmlto packages to be installed'
-	@echo '  HINT: use "make prefix=<path> <install target>" to install to a particular'
-	@echo '        path like make prefix=/usr/local install install-doc'
-	@echo '  install	- install compiled binaries'
-	@echo '  install-doc	- install *all* documentation'
-	@echo '  install-man	- install manpage documentation'
-	@echo '  install-html	- install html documentation'
-	@echo '  install-info	- install GNU info documentation'
-	@echo '  install-pdf	- install pdf documentation'
-	@echo ''
-	@echo '  quick-install-doc	- alias for quick-install-man'
-	@echo '  quick-install-man	- install the documentation quickly'
-	@echo '  quick-install-html	- install the html documentation quickly'
-	@echo ''
-	@echo 'Perf maintainer targets:'
-	@echo '  clean			- clean all binary objects and build output'
-
-
-DOC_TARGETS := doc man html info pdf
-
-INSTALL_DOC_TARGETS := $(patsubst %,install-%,$(DOC_TARGETS)) try-install-man
-INSTALL_DOC_TARGETS += quick-install-doc quick-install-man quick-install-html
-
-# 'make doc' should call 'make -C Documentation all'
-$(DOC_TARGETS):
-	$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) $(@:doc=all)
-
-TAGS:
-	$(RM) TAGS
-	$(FIND) . -name '*.[hcS]' -print | xargs etags -a
-
-tags:
-	$(RM) tags
-	$(FIND) . -name '*.[hcS]' -print | xargs ctags -a
-
-cscope:
-	$(RM) cscope*
-	$(FIND) . -name '*.[hcS]' -print | xargs cscope -b
-
-### Detect prefix changes
-TRACK_CFLAGS = $(subst ','\'',$(CFLAGS)):\
-             $(bindir_SQ):$(perfexecdir_SQ):$(template_dir_SQ):$(prefix_SQ)
-
-$(OUTPUT)PERF-CFLAGS: .FORCE-PERF-CFLAGS
-	@FLAGS='$(TRACK_CFLAGS)'; \
-	    if test x"$$FLAGS" != x"`cat $(OUTPUT)PERF-CFLAGS 2>/dev/null`" ; then \
-		echo 1>&2 "    * new build flags or prefix"; \
-		echo "$$FLAGS" >$(OUTPUT)PERF-CFLAGS; \
-            fi
-
-### Testing rules
-
-# GNU make supports exporting all variables by "export" without parameters.
-# However, the environment gets quite big, and some programs have problems
-# with that.
-
-check: $(OUTPUT)common-cmds.h
-	if sparse; \
-	then \
-		for i in *.c */*.c; \
-		do \
-			sparse $(CFLAGS) $(SPARSE_FLAGS) $$i || exit; \
-		done; \
-	else \
-		exit 1; \
-	fi
-
-### Installation rules
-
-install-bin: all
-	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(bindir_SQ)'
-	$(INSTALL) $(OUTPUT)perf '$(DESTDIR_SQ)$(bindir_SQ)'
-	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
-	$(INSTALL) $(OUTPUT)perf-archive -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
-ifndef NO_LIBPERL
-	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/Perf-Trace-Util/lib/Perf/Trace'
-	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/bin'
-	$(INSTALL) scripts/perl/Perf-Trace-Util/lib/Perf/Trace/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/Perf-Trace-Util/lib/Perf/Trace'
-	$(INSTALL) scripts/perl/*.pl -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl'
-	$(INSTALL) scripts/perl/bin/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/bin'
-endif
-ifndef NO_LIBPYTHON
-	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/Perf-Trace-Util/lib/Perf/Trace'
-	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/bin'
-	$(INSTALL) scripts/python/Perf-Trace-Util/lib/Perf/Trace/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/Perf-Trace-Util/lib/Perf/Trace'
-	$(INSTALL) scripts/python/*.py -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python'
-	$(INSTALL) scripts/python/bin/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/bin'
-endif
-	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(sysconfdir_SQ)/bash_completion.d'
-	$(INSTALL) bash_completion '$(DESTDIR_SQ)$(sysconfdir_SQ)/bash_completion.d/perf'
-	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests'
-	$(INSTALL) tests/attr.py '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests'
-	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/attr'
-	$(INSTALL) tests/attr/* '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/attr'
-
-install: install-bin try-install-man
-
-install-python_ext:
-	$(PYTHON_WORD) util/setup.py --quiet install --root='/$(DESTDIR_SQ)'
-
-# 'make install-doc' should call 'make -C Documentation install'
-$(INSTALL_DOC_TARGETS):
-	$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) $(@:-doc=)
-
-### Cleaning rules
+$(info $(shell printf '# [ perf build: Doing '\''make \033[33m-j'$(JOBS)'\033[m'\'' parallel build. ]\n'))
 
 #
-# This is here, not in config/Makefile, because config/Makefile does
-# not get included for the clean target:
+# Needed if no target specified:
 #
-config-clean:
-	@$(MAKE) -C config/feature-checks clean
-
-clean: $(LIBTRACEEVENT)-clean $(LIBLK)-clean config-clean
-	$(RM) $(LIB_OBJS) $(BUILTIN_OBJS) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf.o $(LANG_BINDINGS)
-	$(RM) $(ALL_PROGRAMS) perf
-	$(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope*
-	$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) clean
-	$(RM) $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)PERF-CFLAGS
-	$(RM) $(OUTPUT)util/*-bison*
-	$(RM) $(OUTPUT)util/*-flex*
-	$(python-clean)
-
-#
-# Trick: if ../../.git does not exist - we are building out of tree for example,
-# then force version regeneration:
-#
-ifeq ($(wildcard ../../.git/HEAD),)
-    GIT-HEAD-PHONY = ../../.git/HEAD
-else
-    GIT-HEAD-PHONY =
-endif
+all:
+	@$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) $@
 
-.PHONY: all install clean config-clean strip
-.PHONY: shell_compatibility_test please_set_SHELL_PATH_to_a_more_modern_shell
-.PHONY: $(GIT-HEAD-PHONY) TAGS tags cscope .FORCE-PERF-CFLAGS
+%:
+	@$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) $@
diff --git a/tools/perf/Makefile.parallel b/tools/perf/Makefile.parallel
deleted file mode 100644
index ec5e08b577ab..000000000000
--- a/tools/perf/Makefile.parallel
+++ /dev/null
@@ -1,26 +0,0 @@
-#
-# Do a parallel build with multiple jobs, based on the number of CPUs online
-# in this system: 'make -j8' on a 8-CPU system, etc.
-#
-# (To override it, run 'make JOBS=1' and similar.)
-#
-ifeq ($(JOBS),)
-  JOBS := $(shell grep -c ^processor /proc/cpuinfo 2>/dev/null)
-  ifeq ($(JOBS),)
-    JOBS := 1
-  endif
-endif
-
-export JOBS
-
-$(info $(shell printf '# [ perf build: Doing '\''make \033[33m-j'$(JOBS)'\033[m'\'' parallel build. ]\n'))
-
-#
-# Needed if no target specified:
-#
-all:
-	@$(MAKE) --no-print-directory -j$(JOBS) $@
-
-%:
-	@$(MAKE) --no-print-directory -j$(JOBS) $@
-
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
new file mode 100644
index 000000000000..178a1c87db13
--- /dev/null
+++ b/tools/perf/Makefile.perf
@@ -0,0 +1,842 @@
+include ../scripts/Makefile.include
+
+# The default target of this Makefile is...
+all:
+
+include config/utilities.mak
+
+# Define V to have a more verbose compile.
+#
+# Define O to save output files in a separate directory.
+#
+# Define ARCH as name of target architecture if you want cross-builds.
+#
+# Define CROSS_COMPILE as prefix name of compiler if you want cross-builds.
+#
+# Define NO_LIBPERL to disable perl script extension.
+#
+# Define NO_LIBPYTHON to disable python script extension.
+#
+# Define PYTHON to point to the python binary if the default
+# `python' is not correct; for example: PYTHON=python2
+#
+# Define PYTHON_CONFIG to point to the python-config binary if
+# the default `$(PYTHON)-config' is not correct.
+#
+# Define ASCIIDOC8 if you want to format documentation with AsciiDoc 8
+#
+# Define DOCBOOK_XSL_172 if you want to format man pages with DocBook XSL v1.72.
+#
+# Define LDFLAGS=-static to build a static binary.
+#
+# Define EXTRA_CFLAGS=-m64 or EXTRA_CFLAGS=-m32 as appropriate for cross-builds.
+#
+# Define NO_DWARF if you do not want debug-info analysis feature at all.
+#
+# Define WERROR=0 to disable treating any warnings as errors.
+#
+# Define NO_NEWT if you do not want TUI support. (deprecated)
+#
+# Define NO_SLANG if you do not want TUI support.
+#
+# Define NO_GTK2 if you do not want GTK+ GUI support.
+#
+# Define NO_DEMANGLE if you do not want C++ symbol demangling.
+#
+# Define NO_LIBELF if you do not want libelf dependency (e.g. cross-builds)
+#
+# Define NO_LIBUNWIND if you do not want libunwind dependency for dwarf
+# backtrace post unwind.
+#
+# Define NO_BACKTRACE if you do not want stack backtrace debug feature
+#
+# Define NO_LIBNUMA if you do not want numa perf benchmark
+#
+# Define NO_LIBAUDIT if you do not want libaudit support
+#
+# Define NO_LIBBIONIC if you do not want bionic support
+
+ifeq ($(srctree),)
+srctree := $(patsubst %/,%,$(dir $(shell pwd)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+#$(info Determined 'srctree' to be $(srctree))
+endif
+
+ifneq ($(objtree),)
+#$(info Determined 'objtree' to be $(objtree))
+endif
+
+ifneq ($(OUTPUT),)
+#$(info Determined 'OUTPUT' to be $(OUTPUT))
+endif
+
+$(OUTPUT)PERF-VERSION-FILE: ../../.git/HEAD
+	@$(SHELL_PATH) util/PERF-VERSION-GEN $(OUTPUT)
+	@touch $(OUTPUT)PERF-VERSION-FILE
+
+CC = $(CROSS_COMPILE)gcc
+AR = $(CROSS_COMPILE)ar
+
+RM      = rm -f
+MKDIR   = mkdir
+FIND    = find
+INSTALL = install
+FLEX    = flex
+BISON   = bison
+STRIP   = strip
+
+LK_DIR          = $(srctree)/tools/lib/lk/
+TRACE_EVENT_DIR = $(srctree)/tools/lib/traceevent/
+
+# include config/Makefile by default and rule out
+# non-config cases
+config := 1
+
+NON_CONFIG_TARGETS := clean TAGS tags cscope help
+
+ifdef MAKECMDGOALS
+ifeq ($(filter-out $(NON_CONFIG_TARGETS),$(MAKECMDGOALS)),)
+  config := 0
+endif
+endif
+
+ifeq ($(config),1)
+include config/Makefile
+endif
+
+export prefix bindir sharedir sysconfdir
+
+# sparse is architecture-neutral, which means that we need to tell it
+# explicitly what architecture to check for. Fix this up for yours..
+SPARSE_FLAGS = -D__BIG_ENDIAN__ -D__powerpc__
+
+# Guard against environment variables
+BUILTIN_OBJS =
+LIB_H =
+LIB_OBJS =
+PYRF_OBJS =
+SCRIPT_SH =
+
+SCRIPT_SH += perf-archive.sh
+
+grep-libs = $(filter -l%,$(1))
+strip-libs = $(filter-out -l%,$(1))
+
+ifneq ($(OUTPUT),)
+  TE_PATH=$(OUTPUT)
+ifneq ($(subdir),)
+  LK_PATH=$(OUTPUT)/../lib/lk/
+else
+  LK_PATH=$(OUTPUT)
+endif
+else
+  TE_PATH=$(TRACE_EVENT_DIR)
+  LK_PATH=$(LK_DIR)
+endif
+
+LIBTRACEEVENT = $(TE_PATH)libtraceevent.a
+export LIBTRACEEVENT
+
+LIBLK = $(LK_PATH)liblk.a
+export LIBLK
+
+# python extension build directories
+PYTHON_EXTBUILD     := $(OUTPUT)python_ext_build/
+PYTHON_EXTBUILD_LIB := $(PYTHON_EXTBUILD)lib/
+PYTHON_EXTBUILD_TMP := $(PYTHON_EXTBUILD)tmp/
+export PYTHON_EXTBUILD_LIB PYTHON_EXTBUILD_TMP
+
+python-clean := rm -rf $(PYTHON_EXTBUILD) $(OUTPUT)python/perf.so
+
+PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)
+PYTHON_EXT_DEPS := util/python-ext-sources util/setup.py $(LIBTRACEEVENT) $(LIBLK)
+
+$(OUTPUT)python/perf.so: $(PYTHON_EXT_SRCS) $(PYTHON_EXT_DEPS)
+	$(QUIET_GEN)CFLAGS='$(CFLAGS)' $(PYTHON_WORD) util/setup.py \
+	  --quiet build_ext; \
+	mkdir -p $(OUTPUT)python && \
+	cp $(PYTHON_EXTBUILD_LIB)perf.so $(OUTPUT)python/
+#
+# No Perl scripts right now:
+#
+
+SCRIPTS = $(patsubst %.sh,%,$(SCRIPT_SH))
+
+#
+# Single 'perf' binary right now:
+#
+PROGRAMS += $(OUTPUT)perf
+
+# what 'all' will build and 'install' will install, in perfexecdir
+ALL_PROGRAMS = $(PROGRAMS) $(SCRIPTS)
+
+# what 'all' will build but not install in perfexecdir
+OTHER_PROGRAMS = $(OUTPUT)perf
+
+# Set paths to tools early so that they can be used for version tests.
+ifndef SHELL_PATH
+  SHELL_PATH = /bin/sh
+endif
+ifndef PERL_PATH
+  PERL_PATH = /usr/bin/perl
+endif
+
+export PERL_PATH
+
+$(OUTPUT)util/parse-events-flex.c: util/parse-events.l $(OUTPUT)util/parse-events-bison.c
+	$(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/parse-events-flex.h $(PARSER_DEBUG_FLEX) -t util/parse-events.l > $(OUTPUT)util/parse-events-flex.c
+
+$(OUTPUT)util/parse-events-bison.c: util/parse-events.y
+	$(QUIET_BISON)$(BISON) -v util/parse-events.y -d $(PARSER_DEBUG_BISON) -o $(OUTPUT)util/parse-events-bison.c -p parse_events_
+
+$(OUTPUT)util/pmu-flex.c: util/pmu.l $(OUTPUT)util/pmu-bison.c
+	$(QUIET_FLEX)$(FLEX) --header-file=$(OUTPUT)util/pmu-flex.h -t util/pmu.l > $(OUTPUT)util/pmu-flex.c
+
+$(OUTPUT)util/pmu-bison.c: util/pmu.y
+	$(QUIET_BISON)$(BISON) -v util/pmu.y -d -o $(OUTPUT)util/pmu-bison.c -p perf_pmu_
+
+$(OUTPUT)util/parse-events.o: $(OUTPUT)util/parse-events-flex.c $(OUTPUT)util/parse-events-bison.c
+$(OUTPUT)util/pmu.o: $(OUTPUT)util/pmu-flex.c $(OUTPUT)util/pmu-bison.c
+
+LIB_FILE=$(OUTPUT)libperf.a
+
+LIB_H += ../../include/uapi/linux/perf_event.h
+LIB_H += ../../include/linux/rbtree.h
+LIB_H += ../../include/linux/list.h
+LIB_H += ../../include/uapi/linux/const.h
+LIB_H += ../../include/linux/hash.h
+LIB_H += ../../include/linux/stringify.h
+LIB_H += util/include/linux/bitmap.h
+LIB_H += util/include/linux/bitops.h
+LIB_H += util/include/linux/compiler.h
+LIB_H += util/include/linux/const.h
+LIB_H += util/include/linux/ctype.h
+LIB_H += util/include/linux/kernel.h
+LIB_H += util/include/linux/list.h
+LIB_H += util/include/linux/export.h
+LIB_H += util/include/linux/magic.h
+LIB_H += util/include/linux/poison.h
+LIB_H += util/include/linux/prefetch.h
+LIB_H += util/include/linux/rbtree.h
+LIB_H += util/include/linux/rbtree_augmented.h
+LIB_H += util/include/linux/string.h
+LIB_H += util/include/linux/types.h
+LIB_H += util/include/linux/linkage.h
+LIB_H += util/include/asm/asm-offsets.h
+LIB_H += util/include/asm/bug.h
+LIB_H += util/include/asm/byteorder.h
+LIB_H += util/include/asm/hweight.h
+LIB_H += util/include/asm/swab.h
+LIB_H += util/include/asm/system.h
+LIB_H += util/include/asm/uaccess.h
+LIB_H += util/include/dwarf-regs.h
+LIB_H += util/include/asm/dwarf2.h
+LIB_H += util/include/asm/cpufeature.h
+LIB_H += util/include/asm/unistd_32.h
+LIB_H += util/include/asm/unistd_64.h
+LIB_H += perf.h
+LIB_H += util/annotate.h
+LIB_H += util/cache.h
+LIB_H += util/callchain.h
+LIB_H += util/build-id.h
+LIB_H += util/debug.h
+LIB_H += util/sysfs.h
+LIB_H += util/pmu.h
+LIB_H += util/event.h
+LIB_H += util/evsel.h
+LIB_H += util/evlist.h
+LIB_H += util/exec_cmd.h
+LIB_H += util/types.h
+LIB_H += util/levenshtein.h
+LIB_H += util/machine.h
+LIB_H += util/map.h
+LIB_H += util/parse-options.h
+LIB_H += util/parse-events.h
+LIB_H += util/quote.h
+LIB_H += util/util.h
+LIB_H += util/xyarray.h
+LIB_H += util/header.h
+LIB_H += util/help.h
+LIB_H += util/session.h
+LIB_H += util/strbuf.h
+LIB_H += util/strlist.h
+LIB_H += util/strfilter.h
+LIB_H += util/svghelper.h
+LIB_H += util/tool.h
+LIB_H += util/run-command.h
+LIB_H += util/sigchain.h
+LIB_H += util/dso.h
+LIB_H += util/symbol.h
+LIB_H += util/color.h
+LIB_H += util/values.h
+LIB_H += util/sort.h
+LIB_H += util/hist.h
+LIB_H += util/thread.h
+LIB_H += util/thread_map.h
+LIB_H += util/trace-event.h
+LIB_H += util/probe-finder.h
+LIB_H += util/dwarf-aux.h
+LIB_H += util/probe-event.h
+LIB_H += util/pstack.h
+LIB_H += util/cpumap.h
+LIB_H += util/top.h
+LIB_H += $(ARCH_INCLUDE)
+LIB_H += util/cgroup.h
+LIB_H += $(LIB_INCLUDE)traceevent/event-parse.h
+LIB_H += util/target.h
+LIB_H += util/rblist.h
+LIB_H += util/intlist.h
+LIB_H += util/perf_regs.h
+LIB_H += util/unwind.h
+LIB_H += util/vdso.h
+LIB_H += ui/helpline.h
+LIB_H += ui/progress.h
+LIB_H += ui/util.h
+LIB_H += ui/ui.h
+
+LIB_OBJS += $(OUTPUT)util/abspath.o
+LIB_OBJS += $(OUTPUT)util/alias.o
+LIB_OBJS += $(OUTPUT)util/annotate.o
+LIB_OBJS += $(OUTPUT)util/build-id.o
+LIB_OBJS += $(OUTPUT)util/config.o
+LIB_OBJS += $(OUTPUT)util/ctype.o
+LIB_OBJS += $(OUTPUT)util/sysfs.o
+LIB_OBJS += $(OUTPUT)util/pmu.o
+LIB_OBJS += $(OUTPUT)util/environment.o
+LIB_OBJS += $(OUTPUT)util/event.o
+LIB_OBJS += $(OUTPUT)util/evlist.o
+LIB_OBJS += $(OUTPUT)util/evsel.o
+LIB_OBJS += $(OUTPUT)util/exec_cmd.o
+LIB_OBJS += $(OUTPUT)util/help.o
+LIB_OBJS += $(OUTPUT)util/levenshtein.o
+LIB_OBJS += $(OUTPUT)util/parse-options.o
+LIB_OBJS += $(OUTPUT)util/parse-events.o
+LIB_OBJS += $(OUTPUT)util/path.o
+LIB_OBJS += $(OUTPUT)util/rbtree.o
+LIB_OBJS += $(OUTPUT)util/bitmap.o
+LIB_OBJS += $(OUTPUT)util/hweight.o
+LIB_OBJS += $(OUTPUT)util/run-command.o
+LIB_OBJS += $(OUTPUT)util/quote.o
+LIB_OBJS += $(OUTPUT)util/strbuf.o
+LIB_OBJS += $(OUTPUT)util/string.o
+LIB_OBJS += $(OUTPUT)util/strlist.o
+LIB_OBJS += $(OUTPUT)util/strfilter.o
+LIB_OBJS += $(OUTPUT)util/top.o
+LIB_OBJS += $(OUTPUT)util/usage.o
+LIB_OBJS += $(OUTPUT)util/wrapper.o
+LIB_OBJS += $(OUTPUT)util/sigchain.o
+LIB_OBJS += $(OUTPUT)util/dso.o
+LIB_OBJS += $(OUTPUT)util/symbol.o
+LIB_OBJS += $(OUTPUT)util/symbol-elf.o
+LIB_OBJS += $(OUTPUT)util/color.o
+LIB_OBJS += $(OUTPUT)util/pager.o
+LIB_OBJS += $(OUTPUT)util/header.o
+LIB_OBJS += $(OUTPUT)util/callchain.o
+LIB_OBJS += $(OUTPUT)util/values.o
+LIB_OBJS += $(OUTPUT)util/debug.o
+LIB_OBJS += $(OUTPUT)util/machine.o
+LIB_OBJS += $(OUTPUT)util/map.o
+LIB_OBJS += $(OUTPUT)util/pstack.o
+LIB_OBJS += $(OUTPUT)util/session.o
+LIB_OBJS += $(OUTPUT)util/thread.o
+LIB_OBJS += $(OUTPUT)util/thread_map.o
+LIB_OBJS += $(OUTPUT)util/trace-event-parse.o
+LIB_OBJS += $(OUTPUT)util/parse-events-flex.o
+LIB_OBJS += $(OUTPUT)util/parse-events-bison.o
+LIB_OBJS += $(OUTPUT)util/pmu-flex.o
+LIB_OBJS += $(OUTPUT)util/pmu-bison.o
+LIB_OBJS += $(OUTPUT)util/trace-event-read.o
+LIB_OBJS += $(OUTPUT)util/trace-event-info.o
+LIB_OBJS += $(OUTPUT)util/trace-event-scripting.o
+LIB_OBJS += $(OUTPUT)util/svghelper.o
+LIB_OBJS += $(OUTPUT)util/sort.o
+LIB_OBJS += $(OUTPUT)util/hist.o
+LIB_OBJS += $(OUTPUT)util/probe-event.o
+LIB_OBJS += $(OUTPUT)util/util.o
+LIB_OBJS += $(OUTPUT)util/xyarray.o
+LIB_OBJS += $(OUTPUT)util/cpumap.o
+LIB_OBJS += $(OUTPUT)util/cgroup.o
+LIB_OBJS += $(OUTPUT)util/target.o
+LIB_OBJS += $(OUTPUT)util/rblist.o
+LIB_OBJS += $(OUTPUT)util/intlist.o
+LIB_OBJS += $(OUTPUT)util/vdso.o
+LIB_OBJS += $(OUTPUT)util/stat.o
+LIB_OBJS += $(OUTPUT)util/record.o
+
+LIB_OBJS += $(OUTPUT)ui/setup.o
+LIB_OBJS += $(OUTPUT)ui/helpline.o
+LIB_OBJS += $(OUTPUT)ui/progress.o
+LIB_OBJS += $(OUTPUT)ui/util.o
+LIB_OBJS += $(OUTPUT)ui/hist.o
+LIB_OBJS += $(OUTPUT)ui/stdio/hist.o
+
+LIB_OBJS += $(OUTPUT)arch/common.o
+
+LIB_OBJS += $(OUTPUT)tests/parse-events.o
+LIB_OBJS += $(OUTPUT)tests/dso-data.o
+LIB_OBJS += $(OUTPUT)tests/attr.o
+LIB_OBJS += $(OUTPUT)tests/vmlinux-kallsyms.o
+LIB_OBJS += $(OUTPUT)tests/open-syscall.o
+LIB_OBJS += $(OUTPUT)tests/open-syscall-all-cpus.o
+LIB_OBJS += $(OUTPUT)tests/open-syscall-tp-fields.o
+LIB_OBJS += $(OUTPUT)tests/mmap-basic.o
+LIB_OBJS += $(OUTPUT)tests/perf-record.o
+LIB_OBJS += $(OUTPUT)tests/rdpmc.o
+LIB_OBJS += $(OUTPUT)tests/evsel-roundtrip-name.o
+LIB_OBJS += $(OUTPUT)tests/evsel-tp-sched.o
+LIB_OBJS += $(OUTPUT)tests/pmu.o
+LIB_OBJS += $(OUTPUT)tests/hists_link.o
+LIB_OBJS += $(OUTPUT)tests/python-use.o
+LIB_OBJS += $(OUTPUT)tests/bp_signal.o
+LIB_OBJS += $(OUTPUT)tests/bp_signal_overflow.o
+LIB_OBJS += $(OUTPUT)tests/task-exit.o
+LIB_OBJS += $(OUTPUT)tests/sw-clock.o
+ifeq ($(ARCH),x86)
+LIB_OBJS += $(OUTPUT)tests/perf-time-to-tsc.o
+endif
+LIB_OBJS += $(OUTPUT)tests/code-reading.o
+LIB_OBJS += $(OUTPUT)tests/sample-parsing.o
+LIB_OBJS += $(OUTPUT)tests/parse-no-sample-id-all.o
+
+BUILTIN_OBJS += $(OUTPUT)builtin-annotate.o
+BUILTIN_OBJS += $(OUTPUT)builtin-bench.o
+# Benchmark modules
+BUILTIN_OBJS += $(OUTPUT)bench/sched-messaging.o
+BUILTIN_OBJS += $(OUTPUT)bench/sched-pipe.o
+ifeq ($(RAW_ARCH),x86_64)
+BUILTIN_OBJS += $(OUTPUT)bench/mem-memcpy-x86-64-asm.o
+BUILTIN_OBJS += $(OUTPUT)bench/mem-memset-x86-64-asm.o
+endif
+BUILTIN_OBJS += $(OUTPUT)bench/mem-memcpy.o
+BUILTIN_OBJS += $(OUTPUT)bench/mem-memset.o
+
+BUILTIN_OBJS += $(OUTPUT)builtin-diff.o
+BUILTIN_OBJS += $(OUTPUT)builtin-evlist.o
+BUILTIN_OBJS += $(OUTPUT)builtin-help.o
+BUILTIN_OBJS += $(OUTPUT)builtin-sched.o
+BUILTIN_OBJS += $(OUTPUT)builtin-buildid-list.o
+BUILTIN_OBJS += $(OUTPUT)builtin-buildid-cache.o
+BUILTIN_OBJS += $(OUTPUT)builtin-list.o
+BUILTIN_OBJS += $(OUTPUT)builtin-record.o
+BUILTIN_OBJS += $(OUTPUT)builtin-report.o
+BUILTIN_OBJS += $(OUTPUT)builtin-stat.o
+BUILTIN_OBJS += $(OUTPUT)builtin-timechart.o
+BUILTIN_OBJS += $(OUTPUT)builtin-top.o
+BUILTIN_OBJS += $(OUTPUT)builtin-script.o
+BUILTIN_OBJS += $(OUTPUT)builtin-probe.o
+BUILTIN_OBJS += $(OUTPUT)builtin-kmem.o
+BUILTIN_OBJS += $(OUTPUT)builtin-lock.o
+BUILTIN_OBJS += $(OUTPUT)builtin-kvm.o
+BUILTIN_OBJS += $(OUTPUT)builtin-inject.o
+BUILTIN_OBJS += $(OUTPUT)tests/builtin-test.o
+BUILTIN_OBJS += $(OUTPUT)builtin-mem.o
+
+PERFLIBS = $(LIB_FILE) $(LIBLK) $(LIBTRACEEVENT)
+
+# We choose to avoid "if .. else if .. else .. endif endif"
+# because maintaining the nesting to match is a pain.  If
+# we had "elif" things would have been much nicer...
+
+-include arch/$(ARCH)/Makefile
+
+ifneq ($(OUTPUT),)
+  CFLAGS += -I$(OUTPUT)
+endif
+
+ifdef NO_LIBELF
+EXTLIBS := $(filter-out -lelf,$(EXTLIBS))
+
+# Remove ELF/DWARF dependent codes
+LIB_OBJS := $(filter-out $(OUTPUT)util/symbol-elf.o,$(LIB_OBJS))
+LIB_OBJS := $(filter-out $(OUTPUT)util/dwarf-aux.o,$(LIB_OBJS))
+LIB_OBJS := $(filter-out $(OUTPUT)util/probe-event.o,$(LIB_OBJS))
+LIB_OBJS := $(filter-out $(OUTPUT)util/probe-finder.o,$(LIB_OBJS))
+
+BUILTIN_OBJS := $(filter-out $(OUTPUT)builtin-probe.o,$(BUILTIN_OBJS))
+
+# Use minimal symbol handling
+LIB_OBJS += $(OUTPUT)util/symbol-minimal.o
+
+else # NO_LIBELF
+ifndef NO_DWARF
+  LIB_OBJS += $(OUTPUT)util/probe-finder.o
+  LIB_OBJS += $(OUTPUT)util/dwarf-aux.o
+endif # NO_DWARF
+endif # NO_LIBELF
+
+ifndef NO_LIBUNWIND
+  LIB_OBJS += $(OUTPUT)util/unwind.o
+endif
+LIB_OBJS += $(OUTPUT)tests/keep-tracking.o
+
+ifndef NO_LIBAUDIT
+  BUILTIN_OBJS += $(OUTPUT)builtin-trace.o
+endif
+
+ifndef NO_SLANG
+  LIB_OBJS += $(OUTPUT)ui/browser.o
+  LIB_OBJS += $(OUTPUT)ui/browsers/annotate.o
+  LIB_OBJS += $(OUTPUT)ui/browsers/hists.o
+  LIB_OBJS += $(OUTPUT)ui/browsers/map.o
+  LIB_OBJS += $(OUTPUT)ui/browsers/scripts.o
+  LIB_OBJS += $(OUTPUT)ui/tui/setup.o
+  LIB_OBJS += $(OUTPUT)ui/tui/util.o
+  LIB_OBJS += $(OUTPUT)ui/tui/helpline.o
+  LIB_OBJS += $(OUTPUT)ui/tui/progress.o
+  LIB_H += ui/browser.h
+  LIB_H += ui/browsers/map.h
+  LIB_H += ui/keysyms.h
+  LIB_H += ui/libslang.h
+endif
+
+ifndef NO_GTK2
+  LIB_OBJS += $(OUTPUT)ui/gtk/browser.o
+  LIB_OBJS += $(OUTPUT)ui/gtk/hists.o
+  LIB_OBJS += $(OUTPUT)ui/gtk/setup.o
+  LIB_OBJS += $(OUTPUT)ui/gtk/util.o
+  LIB_OBJS += $(OUTPUT)ui/gtk/helpline.o
+  LIB_OBJS += $(OUTPUT)ui/gtk/progress.o
+  LIB_OBJS += $(OUTPUT)ui/gtk/annotate.o
+endif
+
+ifndef NO_LIBPERL
+  LIB_OBJS += $(OUTPUT)util/scripting-engines/trace-event-perl.o
+  LIB_OBJS += $(OUTPUT)scripts/perl/Perf-Trace-Util/Context.o
+endif
+
+ifndef NO_LIBPYTHON
+  LIB_OBJS += $(OUTPUT)util/scripting-engines/trace-event-python.o
+  LIB_OBJS += $(OUTPUT)scripts/python/Perf-Trace-Util/Context.o
+endif
+
+ifeq ($(NO_PERF_REGS),0)
+  ifeq ($(ARCH),x86)
+    LIB_H += arch/x86/include/perf_regs.h
+  endif
+endif
+
+ifndef NO_LIBNUMA
+  BUILTIN_OBJS += $(OUTPUT)bench/numa.o
+endif
+
+ifdef ASCIIDOC8
+  export ASCIIDOC8
+endif
+
+LIBS = -Wl,--whole-archive $(PERFLIBS) -Wl,--no-whole-archive -Wl,--start-group $(EXTLIBS) -Wl,--end-group
+
+export INSTALL SHELL_PATH
+
+### Build rules
+
+SHELL = $(SHELL_PATH)
+
+all: shell_compatibility_test $(ALL_PROGRAMS) $(LANG_BINDINGS) $(OTHER_PROGRAMS)
+
+please_set_SHELL_PATH_to_a_more_modern_shell:
+	@$$(:)
+
+shell_compatibility_test: please_set_SHELL_PATH_to_a_more_modern_shell
+
+strip: $(PROGRAMS) $(OUTPUT)perf
+	$(STRIP) $(STRIP_OPTS) $(PROGRAMS) $(OUTPUT)perf
+
+$(OUTPUT)perf.o: perf.c $(OUTPUT)common-cmds.h $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -include $(OUTPUT)PERF-VERSION-FILE \
+		'-DPERF_HTML_PATH="$(htmldir_SQ)"' \
+		$(CFLAGS) -c $(filter %.c,$^) -o $@
+
+$(OUTPUT)perf: $(OUTPUT)perf.o $(BUILTIN_OBJS) $(PERFLIBS)
+	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(OUTPUT)perf.o \
+               $(BUILTIN_OBJS) $(LIBS) -o $@
+
+$(OUTPUT)builtin-help.o: builtin-help.c $(OUTPUT)common-cmds.h $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) \
+		'-DPERF_HTML_PATH="$(htmldir_SQ)"' \
+		'-DPERF_MAN_PATH="$(mandir_SQ)"' \
+		'-DPERF_INFO_PATH="$(infodir_SQ)"' $<
+
+$(OUTPUT)builtin-timechart.o: builtin-timechart.c $(OUTPUT)common-cmds.h $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) \
+		'-DPERF_HTML_PATH="$(htmldir_SQ)"' \
+		'-DPERF_MAN_PATH="$(mandir_SQ)"' \
+		'-DPERF_INFO_PATH="$(infodir_SQ)"' $<
+
+$(OUTPUT)common-cmds.h: util/generate-cmdlist.sh command-list.txt
+
+$(OUTPUT)common-cmds.h: $(wildcard Documentation/perf-*.txt)
+	$(QUIET_GEN). util/generate-cmdlist.sh > $@+ && mv $@+ $@
+
+$(SCRIPTS) : % : %.sh
+	$(QUIET_GEN)$(INSTALL) '$@.sh' '$(OUTPUT)$@'
+
+# These can record PERF_VERSION
+$(OUTPUT)perf.o perf.spec \
+	$(SCRIPTS) \
+	: $(OUTPUT)PERF-VERSION-FILE
+
+.SUFFIXES:
+.SUFFIXES: .o .c .S .s
+
+# These two need to be here so that when O= is not used they take precedence
+# over the general rule for .o
+
+$(OUTPUT)util/%-flex.o: $(OUTPUT)util/%-flex.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c -Iutil/ $(CFLAGS) -w $<
+
+$(OUTPUT)util/%-bison.o: $(OUTPUT)util/%-bison.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c -Iutil/ $(CFLAGS) -DYYENABLE_NLS=0 -DYYLTYPE_IS_TRIVIAL=0 -w $<
+
+$(OUTPUT)%.o: %.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $<
+$(OUTPUT)%.i: %.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -E $(CFLAGS) $<
+$(OUTPUT)%.s: %.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -S $(CFLAGS) $<
+$(OUTPUT)%.o: %.S
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $<
+$(OUTPUT)%.s: %.S
+	$(QUIET_CC)$(CC) -o $@ -E $(CFLAGS) $<
+
+$(OUTPUT)util/exec_cmd.o: util/exec_cmd.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) \
+		'-DPERF_EXEC_PATH="$(perfexecdir_SQ)"' \
+		'-DPREFIX="$(prefix_SQ)"' \
+		$<
+
+$(OUTPUT)tests/attr.o: tests/attr.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) \
+		'-DBINDIR="$(bindir_SQ)"' -DPYTHON='"$(PYTHON_WORD)"' \
+		$<
+
+$(OUTPUT)tests/python-use.o: tests/python-use.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) \
+		-DPYTHONPATH='"$(OUTPUT)python"' \
+		-DPYTHON='"$(PYTHON_WORD)"' \
+		$<
+
+$(OUTPUT)util/config.o: util/config.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $<
+
+$(OUTPUT)ui/browser.o: ui/browser.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<
+
+$(OUTPUT)ui/browsers/annotate.o: ui/browsers/annotate.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<
+
+$(OUTPUT)ui/browsers/hists.o: ui/browsers/hists.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<
+
+$(OUTPUT)ui/browsers/map.o: ui/browsers/map.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<
+
+$(OUTPUT)ui/browsers/scripts.o: ui/browsers/scripts.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<
+
+$(OUTPUT)util/rbtree.o: ../../lib/rbtree.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -Wno-unused-parameter -DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $<
+
+$(OUTPUT)util/parse-events.o: util/parse-events.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -Wno-redundant-decls $<
+
+$(OUTPUT)util/scripting-engines/trace-event-perl.o: util/scripting-engines/trace-event-perl.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow -Wno-undef -Wno-switch-default $<
+
+$(OUTPUT)scripts/perl/Perf-Trace-Util/Context.o: scripts/perl/Perf-Trace-Util/Context.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-nested-externs -Wno-undef -Wno-switch-default $<
+
+$(OUTPUT)util/scripting-engines/trace-event-python.o: util/scripting-engines/trace-event-python.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $(PYTHON_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow $<
+
+$(OUTPUT)scripts/python/Perf-Trace-Util/Context.o: scripts/python/Perf-Trace-Util/Context.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) $(PYTHON_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-nested-externs $<
+
+$(OUTPUT)perf-%: %.o $(PERFLIBS)
+	$(QUIET_LINK)$(CC) $(CFLAGS) -o $@ $(LDFLAGS) $(filter %.o,$^) $(LIBS)
+
+$(LIB_OBJS) $(BUILTIN_OBJS): $(LIB_H)
+$(patsubst perf-%,%.o,$(PROGRAMS)): $(LIB_H) $(wildcard */*.h)
+
+# we compile into subdirectories. if the target directory is not the source directory, they might not exists. So
+# we depend the various files onto their directories.
+DIRECTORY_DEPS = $(LIB_OBJS) $(BUILTIN_OBJS) $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h
+$(DIRECTORY_DEPS): | $(sort $(dir $(DIRECTORY_DEPS)))
+# In the second step, we make a rule to actually create these directories
+$(sort $(dir $(DIRECTORY_DEPS))):
+	$(QUIET_MKDIR)$(MKDIR) -p $@ 2>/dev/null
+
+$(LIB_FILE): $(LIB_OBJS)
+	$(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(LIB_OBJS)
+
+# libtraceevent.a
+TE_SOURCES = $(wildcard $(TRACE_EVENT_DIR)*.[ch])
+
+$(LIBTRACEEVENT): $(TE_SOURCES)
+	$(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) libtraceevent.a
+
+$(LIBTRACEEVENT)-clean:
+	$(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) clean
+
+LIBLK_SOURCES = $(wildcard $(LK_PATH)*.[ch])
+
+# if subdir is set, we've been called from above so target has been built
+# already
+$(LIBLK): $(LIBLK_SOURCES)
+ifeq ($(subdir),)
+	$(QUIET_SUBDIR0)$(LK_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) liblk.a
+endif
+
+$(LIBLK)-clean:
+ifeq ($(subdir),)
+	$(QUIET_SUBDIR0)$(LK_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) clean
+endif
+
+help:
+	@echo 'Perf make targets:'
+	@echo '  doc		- make *all* documentation (see below)'
+	@echo '  man		- make manpage documentation (access with man <foo>)'
+	@echo '  html		- make html documentation'
+	@echo '  info		- make GNU info documentation (access with info <foo>)'
+	@echo '  pdf		- make pdf documentation'
+	@echo '  TAGS		- use etags to make tag information for source browsing'
+	@echo '  tags		- use ctags to make tag information for source browsing'
+	@echo '  cscope	- use cscope to make interactive browsing database'
+	@echo ''
+	@echo 'Perf install targets:'
+	@echo '  NOTE: documentation build requires asciidoc, xmlto packages to be installed'
+	@echo '  HINT: use "make prefix=<path> <install target>" to install to a particular'
+	@echo '        path like make prefix=/usr/local install install-doc'
+	@echo '  install	- install compiled binaries'
+	@echo '  install-doc	- install *all* documentation'
+	@echo '  install-man	- install manpage documentation'
+	@echo '  install-html	- install html documentation'
+	@echo '  install-info	- install GNU info documentation'
+	@echo '  install-pdf	- install pdf documentation'
+	@echo ''
+	@echo '  quick-install-doc	- alias for quick-install-man'
+	@echo '  quick-install-man	- install the documentation quickly'
+	@echo '  quick-install-html	- install the html documentation quickly'
+	@echo ''
+	@echo 'Perf maintainer targets:'
+	@echo '  clean			- clean all binary objects and build output'
+
+
+DOC_TARGETS := doc man html info pdf
+
+INSTALL_DOC_TARGETS := $(patsubst %,install-%,$(DOC_TARGETS)) try-install-man
+INSTALL_DOC_TARGETS += quick-install-doc quick-install-man quick-install-html
+
+# 'make doc' should call 'make -C Documentation all'
+$(DOC_TARGETS):
+	$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) $(@:doc=all)
+
+TAGS:
+	$(RM) TAGS
+	$(FIND) . -name '*.[hcS]' -print | xargs etags -a
+
+tags:
+	$(RM) tags
+	$(FIND) . -name '*.[hcS]' -print | xargs ctags -a
+
+cscope:
+	$(RM) cscope*
+	$(FIND) . -name '*.[hcS]' -print | xargs cscope -b
+
+### Detect prefix changes
+TRACK_CFLAGS = $(subst ','\'',$(CFLAGS)):\
+             $(bindir_SQ):$(perfexecdir_SQ):$(template_dir_SQ):$(prefix_SQ)
+
+$(OUTPUT)PERF-CFLAGS: .FORCE-PERF-CFLAGS
+	@FLAGS='$(TRACK_CFLAGS)'; \
+	    if test x"$$FLAGS" != x"`cat $(OUTPUT)PERF-CFLAGS 2>/dev/null`" ; then \
+		echo 1>&2 "    * new build flags or prefix"; \
+		echo "$$FLAGS" >$(OUTPUT)PERF-CFLAGS; \
+            fi
+
+### Testing rules
+
+# GNU make supports exporting all variables by "export" without parameters.
+# However, the environment gets quite big, and some programs have problems
+# with that.
+
+check: $(OUTPUT)common-cmds.h
+	if sparse; \
+	then \
+		for i in *.c */*.c; \
+		do \
+			sparse $(CFLAGS) $(SPARSE_FLAGS) $$i || exit; \
+		done; \
+	else \
+		exit 1; \
+	fi
+
+### Installation rules
+
+install-bin: all
+	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(bindir_SQ)'
+	$(INSTALL) $(OUTPUT)perf '$(DESTDIR_SQ)$(bindir_SQ)'
+	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
+	$(INSTALL) $(OUTPUT)perf-archive -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
+ifndef NO_LIBPERL
+	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/Perf-Trace-Util/lib/Perf/Trace'
+	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/bin'
+	$(INSTALL) scripts/perl/Perf-Trace-Util/lib/Perf/Trace/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/Perf-Trace-Util/lib/Perf/Trace'
+	$(INSTALL) scripts/perl/*.pl -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl'
+	$(INSTALL) scripts/perl/bin/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/bin'
+endif
+ifndef NO_LIBPYTHON
+	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/Perf-Trace-Util/lib/Perf/Trace'
+	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/bin'
+	$(INSTALL) scripts/python/Perf-Trace-Util/lib/Perf/Trace/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/Perf-Trace-Util/lib/Perf/Trace'
+	$(INSTALL) scripts/python/*.py -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python'
+	$(INSTALL) scripts/python/bin/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/bin'
+endif
+	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(sysconfdir_SQ)/bash_completion.d'
+	$(INSTALL) bash_completion '$(DESTDIR_SQ)$(sysconfdir_SQ)/bash_completion.d/perf'
+	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests'
+	$(INSTALL) tests/attr.py '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests'
+	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/attr'
+	$(INSTALL) tests/attr/* '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/attr'
+
+install: install-bin try-install-man
+
+install-python_ext:
+	$(PYTHON_WORD) util/setup.py --quiet install --root='/$(DESTDIR_SQ)'
+
+# 'make install-doc' should call 'make -C Documentation install'
+$(INSTALL_DOC_TARGETS):
+	$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) $(@:-doc=)
+
+### Cleaning rules
+
+#
+# This is here, not in config/Makefile, because config/Makefile does
+# not get included for the clean target:
+#
+config-clean:
+	@$(MAKE) -C config/feature-checks clean
+
+clean: $(LIBTRACEEVENT)-clean $(LIBLK)-clean config-clean
+	$(RM) $(LIB_OBJS) $(BUILTIN_OBJS) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf.o $(LANG_BINDINGS)
+	$(RM) $(ALL_PROGRAMS) perf
+	$(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope*
+	$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) clean
+	$(RM) $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)PERF-CFLAGS
+	$(RM) $(OUTPUT)util/*-bison*
+	$(RM) $(OUTPUT)util/*-flex*
+	$(python-clean)
+
+#
+# Trick: if ../../.git does not exist - we are building out of tree for example,
+# then force version regeneration:
+#
+ifeq ($(wildcard ../../.git/HEAD),)
+    GIT-HEAD-PHONY = ../../.git/HEAD
+else
+    GIT-HEAD-PHONY =
+endif
+
+.PHONY: all install clean config-clean strip
+.PHONY: shell_compatibility_test please_set_SHELL_PATH_to_a_more_modern_shell
+.PHONY: $(GIT-HEAD-PHONY) TAGS tags cscope .FORCE-PERF-CFLAGS
+
-- 
cgit 


From 73a725f0008702600f7d987e262f963c0fa64bc6 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 2 Oct 2013 11:58:30 +0200
Subject: tools/perf/build: Standardize the various messages output by parallel
 make

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-mky0rtpwxi3ivxsvdjoOEmhr@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/Makefile        | 23 ++++++++++++++++++++---
 tools/perf/config/Makefile |  4 ++--
 2 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index ce7874b73dd9..3b925ad0d5f5 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -13,13 +13,30 @@ endif
 
 export JOBS
 
-$(info $(shell printf '# [ perf build: Doing '\''make \033[33m-j'$(JOBS)'\033[m'\'' parallel build. ]\n'))
+define print_msg
+  @printf '    BUILD: Doing '\''make \033[33m-j'$(JOBS)'\033[m'\'' parallel build\n'
+endef
+
+define make
+  @$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) $@
+endef
 
 #
 # Needed if no target specified:
 #
 all:
-	@$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) $@
+	$(print_msg)
+	$(make)
+
+#
+# The clean target is not really parallel, don't print the jobs info:
+#
+clean:
+	$(make)
 
+#
+# All other targets get passed through:
+#
 %:
-	@$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) $@
+	$(print_msg)
+	$(make)
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index fb6ec069f541..62d02cd03f29 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -179,9 +179,9 @@ endif
 feature_print = $(eval $(feature_print_code))
 define feature_print_code
   ifeq ($(feature-$(1)), 1)
-    MSG := $(shell printf '...%30s: [ \033[32mon\033[m  ]' $(1))
+    MSG = $(shell printf '...%30s: [ \033[32mon\033[m  ]' $(1))
   else
-    MSG := $(shell printf '...%30s: [ \033[31mOFF\033[m ]' $(1))
+    MSG = $(shell printf '...%30s: [ \033[31mOFF\033[m ]' $(1))
   endif
   $(info $(MSG))
 endef
-- 
cgit 


From 1c47661a93fe6f729c80ed18a1f9ab1c7fb0cac2 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 2 Oct 2013 15:15:09 +0200
Subject: tools/perf/build: Split out feature checks: 'liberty', 'liberty-z',
 'cplus-demangle'

Note that these are rarely executed tests, so we call feature_check() explicitly
and don't have them in CORE_FEATURE_CHECKS.

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-pvumlx6mbtfxffgrlwO2mRcx@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                             | 16 ++++++----------
 tools/perf/config/feature-checks/Makefile              | 12 ++++++++++++
 tools/perf/config/feature-checks/test-cplus-demangle.c | 10 ++++++++++
 3 files changed, 28 insertions(+), 10 deletions(-)
 create mode 100644 tools/perf/config/feature-checks/test-cplus-demangle.c

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 62d02cd03f29..89b2d47d2e4b 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -472,23 +472,19 @@ else
     EXTLIBS += -liberty
     CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
   else
-    FLAGS_BFD=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) -DPACKAGE='perf' -lbfd
     ifeq ($(feature-libbfd), 1)
       EXTLIBS += -lbfd
     else
-      FLAGS_BFD_IBERTY=$(FLAGS_BFD) -liberty
-      has_bfd_iberty := $(call try-cc,$(SOURCE_BFD),$(FLAGS_BFD_IBERTY),liberty)
-      ifeq ($(has_bfd_iberty),y)
+      $(feature_check,liberty)
+      ifeq ($(feature-liberty), 1)
         EXTLIBS += -lbfd -liberty
       else
-        FLAGS_BFD_IBERTY_Z=$(FLAGS_BFD_IBERTY) -lz
-        has_bfd_iberty_z := $(call try-cc,$(SOURCE_BFD),$(FLAGS_BFD_IBERTY_Z),libz)
-        ifeq ($(has_bfd_iberty_z),y)
+        $(feature_check,liberty-z)
+        ifeq ($(feature-liberty-z), 1)
           EXTLIBS += -lbfd -liberty -lz
         else
-          FLAGS_CPLUS_DEMANGLE=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) -liberty
-          has_cplus_demangle := $(call try-cc,$(SOURCE_CPLUS_DEMANGLE),$(FLAGS_CPLUS_DEMANGLE),demangle)
-          ifeq ($(has_cplus_demangle),y)
+          $(feature_check,cplus-demangle)
+          ifeq ($(feature-cplus-demangle), 1)
             EXTLIBS += -liberty
             CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
           else
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index d4c55acc82bb..e21bceb80bf2 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -11,6 +11,9 @@ FILES=					\
 	test-hello			\
 	test-libaudit			\
 	test-libbfd			\
+	test-liberty			\
+	test-liberty-z			\
+	test-cplus-demangle		\
 	test-libelf			\
 	test-libelf-getphdrnum		\
 	test-libelf-mmap		\
@@ -122,6 +125,15 @@ test-libpython-version:
 test-libbfd:
 	$(BUILD) -DPACKAGE='perf' -DPACKAGE=perf -lbfd -ldl
 
+test-liberty:
+	$(CC) -o $(OUTPUT)$@ test-libbfd.c -DPACKAGE='perf' -DPACKAGE=perf -lbfd -ldl -liberty
+
+test-liberty-z:
+	$(CC) -o $(OUTPUT)$@ test-libbfd.c -DPACKAGE='perf' -DPACKAGE=perf -lbfd -ldl -liberty -lz
+
+test-cplus-demangle:
+	$(BUILD) -liberty
+
 test-on-exit:
 	$(BUILD)
 
diff --git a/tools/perf/config/feature-checks/test-cplus-demangle.c b/tools/perf/config/feature-checks/test-cplus-demangle.c
new file mode 100644
index 000000000000..5202f5038ad8
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-cplus-demangle.c
@@ -0,0 +1,10 @@
+
+extern char *cplus_demangle(const char *, int);
+
+int main(void)
+{
+	cplus_demangle(0, 0);
+
+	return 0;
+}
+
-- 
cgit 


From 0648f839ff754e2825fee2cb7080df5874316b3f Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 2 Oct 2013 15:30:35 +0200
Subject: tools/perf/build: Remove unused config/feature-tests.mak

Also remove try-cc et al. These got obsoleted by the split-out feature checks in
config/feature-checks/.

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-Y6ailbiranadqlrl8Dfivjbi@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile          |   3 +-
 tools/perf/config/feature-tests.mak | 244 ------------------------------------
 tools/perf/config/utilities.mak     |  14 ---
 3 files changed, 1 insertion(+), 260 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 89b2d47d2e4b..e80ffe8262b0 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -51,7 +51,6 @@ LIB_INCLUDE := $(srctree)/tools/lib/
 # include ARCH specific config
 -include $(src-perf)/arch/$(ARCH)/Makefile
 
-include $(src-perf)/config/feature-tests.mak
 include $(src-perf)/config/utilities.mak
 
 ifeq ($(call get-executable,$(FLEX)),)
@@ -274,7 +273,7 @@ else
       msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
       NO_DWARF := 1
     endif # Dwarf support
-  endif # SOURCE_LIBELF
+  endif # libelf support
 endif # NO_LIBELF
 
 ifndef NO_LIBELF
diff --git a/tools/perf/config/feature-tests.mak b/tools/perf/config/feature-tests.mak
index f79305739ecc..139597f9cb07 100644
--- a/tools/perf/config/feature-tests.mak
+++ b/tools/perf/config/feature-tests.mak
@@ -1,246 +1,2 @@
-define SOURCE_HELLO
-#include <stdio.h>
-int main(void)
-{
-	return puts(\"hi\");
-}
-endef
 
-ifndef NO_DWARF
-define SOURCE_DWARF
-#include <dwarf.h>
-#include <elfutils/libdw.h>
-#include <elfutils/version.h>
-#ifndef _ELFUTILS_PREREQ
-#error
-#endif
 
-int main(void)
-{
-	Dwarf *dbg = dwarf_begin(0, DWARF_C_READ);
-	return (long)dbg;
-}
-endef
-endif
-
-define SOURCE_LIBELF
-#include <libelf.h>
-
-int main(void)
-{
-	Elf *elf = elf_begin(0, ELF_C_READ, 0);
-	return (long)elf;
-}
-endef
-
-define SOURCE_GLIBC
-#include <gnu/libc-version.h>
-
-int main(void)
-{
-	const char *version = gnu_get_libc_version();
-	return (long)version;
-}
-endef
-
-define SOURCE_BIONIC
-#include <android/api-level.h>
-
-int main(void)
-{
-	return __ANDROID_API__;
-}
-endef
-
-define SOURCE_ELF_MMAP
-#include <libelf.h>
-int main(void)
-{
-	Elf *elf = elf_begin(0, ELF_C_READ_MMAP, 0);
-	return (long)elf;
-}
-endef
-
-define SOURCE_ELF_GETPHDRNUM
-#include <libelf.h>
-int main(void)
-{
-	size_t dst;
-	return elf_getphdrnum(0, &dst);
-}
-endef
-
-ifndef NO_SLANG
-define SOURCE_SLANG
-#include <slang.h>
-
-int main(void)
-{
-	return SLsmg_init_smg();
-}
-endef
-endif
-
-ifndef NO_GTK2
-define SOURCE_GTK2
-#pragma GCC diagnostic ignored \"-Wstrict-prototypes\"
-#include <gtk/gtk.h>
-#pragma GCC diagnostic error \"-Wstrict-prototypes\"
-
-int main(int argc, char *argv[])
-{
-        gtk_init(&argc, &argv);
-
-        return 0;
-}
-endef
-
-define SOURCE_GTK2_INFOBAR
-#pragma GCC diagnostic ignored \"-Wstrict-prototypes\"
-#include <gtk/gtk.h>
-#pragma GCC diagnostic error \"-Wstrict-prototypes\"
-
-int main(void)
-{
-	gtk_info_bar_new();
-
-	return 0;
-}
-endef
-endif
-
-ifndef NO_LIBPERL
-define SOURCE_PERL_EMBED
-#include <EXTERN.h>
-#include <perl.h>
-
-int main(void)
-{
-perl_alloc();
-return 0;
-}
-endef
-endif
-
-ifndef NO_LIBPYTHON
-define SOURCE_PYTHON_VERSION
-#include <Python.h>
-#if PY_VERSION_HEX >= 0x03000000
-	#error
-#endif
-int main(void)
-{
-	return 0;
-}
-endef
-define SOURCE_PYTHON_EMBED
-#include <Python.h>
-int main(void)
-{
-	Py_Initialize();
-	return 0;
-}
-endef
-endif
-
-define SOURCE_BFD
-#include <bfd.h>
-
-int main(void)
-{
-	bfd_demangle(0, 0, 0);
-	return 0;
-}
-endef
-
-define SOURCE_CPLUS_DEMANGLE
-extern char *cplus_demangle(const char *, int);
-
-int main(void)
-{
-	cplus_demangle(0, 0);
-	return 0;
-}
-endef
-
-define SOURCE_STRLCPY
-#include <stdlib.h>
-extern size_t strlcpy(char *dest, const char *src, size_t size);
-
-int main(void)
-{
-	strlcpy(NULL, NULL, 0);
-	return 0;
-}
-endef
-
-ifndef NO_LIBUNWIND
-define SOURCE_LIBUNWIND
-#include <libunwind.h>
-#include <stdlib.h>
-
-extern int UNW_OBJ(dwarf_search_unwind_table) (unw_addr_space_t as,
-                                      unw_word_t ip,
-                                      unw_dyn_info_t *di,
-                                      unw_proc_info_t *pi,
-                                      int need_unwind_info, void *arg);
-
-
-#define dwarf_search_unwind_table UNW_OBJ(dwarf_search_unwind_table)
-
-int main(void)
-{
-	unw_addr_space_t addr_space;
-	addr_space = unw_create_addr_space(NULL, 0);
-	unw_init_remote(NULL, addr_space, NULL);
-	dwarf_search_unwind_table(addr_space, 0, NULL, NULL, 0, NULL);
-	return 0;
-}
-endef
-endif
-
-ifndef NO_BACKTRACE
-define SOURCE_BACKTRACE
-#include <execinfo.h>
-#include <stdio.h>
-
-int main(void)
-{
-	backtrace(NULL, 0);
-	backtrace_symbols(NULL, 0);
-	return 0;
-}
-endef
-endif
-
-ifndef NO_LIBAUDIT
-define SOURCE_LIBAUDIT
-#include <libaudit.h>
-
-int main(void)
-{
-	printf(\"error message: %s\", audit_errno_to_name(0));
-	return audit_open();
-}
-endef
-endif
-
-define SOURCE_ON_EXIT
-#include <stdio.h>
-
-int main(void)
-{
-	return on_exit(NULL, NULL);
-}
-endef
-
-define SOURCE_LIBNUMA
-#include <numa.h>
-#include <numaif.h>
-
-int main(void)
-{
-	numa_available();
-	return 0;
-}
-endef
diff --git a/tools/perf/config/utilities.mak b/tools/perf/config/utilities.mak
index 94d2d4f9c35d..4d985e0f03f5 100644
--- a/tools/perf/config/utilities.mak
+++ b/tools/perf/config/utilities.mak
@@ -178,17 +178,3 @@ endef
 _ge_attempt = $(if $(get-executable),$(get-executable),$(_gea_warn)$(call _gea_err,$(2)))
 _gea_warn = $(warning The path '$(1)' is not executable.)
 _gea_err  = $(if $(1),$(error Please set '$(1)' appropriately))
-
-# try-cc
-# Usage: option = $(call try-cc, source-to-build, cc-options, msg)
-ifneq ($(V),1)
-TRY_CC_OUTPUT= > /dev/null 2>&1
-endif
-TRY_CC_MSG=echo "    CHK $(3)" 1>&2;
-
-try-cc = $(shell sh -c						  \
-	'TMP="$(OUTPUT)$(TMPOUT).$$$$";				  \
-	 $(TRY_CC_MSG)						  \
-	 echo "$(1)" |						  \
-	 $(CC) -x c - $(2) -o "$$TMP" $(TRY_CC_OUTPUT) && echo y; \
-	 rm -f "$$TMP"')
-- 
cgit 


From 1e3f30fae797660a014ac159d93fff9952ec1bf0 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 2 Oct 2013 15:48:49 +0200
Subject: tools/perf/build: Clean up various testcases

Prepare to include them into test-all.c directly, by making sure
that they build cleanly and without warnings.

Also make sure they make a certain amount of sense and don't crash
when executed.

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-Mn9gsdutzopoowk3xurqpsxE@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/feature-checks/test-backtrace.c      |  8 ++++++--
 tools/perf/config/feature-checks/test-cplus-demangle.c |  9 +++++++--
 tools/perf/config/feature-checks/test-gtk2-infobar.c   |  3 ++-
 tools/perf/config/feature-checks/test-gtk2.c           |  2 +-
 tools/perf/config/feature-checks/test-libaudit.c       |  2 ++
 tools/perf/config/feature-checks/test-libbfd.c         | 11 ++++++++++-
 tools/perf/config/feature-checks/test-libunwind.c      |  9 ++++++++-
 tools/perf/config/feature-checks/test-on-exit.c        | 11 ++++++++++-
 8 files changed, 46 insertions(+), 9 deletions(-)

diff --git a/tools/perf/config/feature-checks/test-backtrace.c b/tools/perf/config/feature-checks/test-backtrace.c
index 5b79468bea2a..5b33bcf12c27 100644
--- a/tools/perf/config/feature-checks/test-backtrace.c
+++ b/tools/perf/config/feature-checks/test-backtrace.c
@@ -3,8 +3,12 @@
 
 int main(void)
 {
-	backtrace(NULL, 0);
-	backtrace_symbols(NULL, 0);
+	void *backtrace_fns[10];
+	size_t entries;
+
+	entries = backtrace(backtrace_fns, 10);
+	backtrace_symbols_fd(backtrace_fns, entries, 1);
 
 	return 0;
 }
+
diff --git a/tools/perf/config/feature-checks/test-cplus-demangle.c b/tools/perf/config/feature-checks/test-cplus-demangle.c
index 5202f5038ad8..ab29f80570af 100644
--- a/tools/perf/config/feature-checks/test-cplus-demangle.c
+++ b/tools/perf/config/feature-checks/test-cplus-demangle.c
@@ -1,9 +1,14 @@
-
+extern int printf(const char *format, ...);
 extern char *cplus_demangle(const char *, int);
 
 int main(void)
 {
-	cplus_demangle(0, 0);
+	char symbol[4096] = "FieldName__9ClassNameFd";
+	char *tmp;
+
+	tmp = cplus_demangle(symbol, 0);
+
+	printf("demangled symbol: {%s}\n", tmp);
 
 	return 0;
 }
diff --git a/tools/perf/config/feature-checks/test-gtk2-infobar.c b/tools/perf/config/feature-checks/test-gtk2-infobar.c
index eebcfbc45120..397b4646d066 100644
--- a/tools/perf/config/feature-checks/test-gtk2-infobar.c
+++ b/tools/perf/config/feature-checks/test-gtk2-infobar.c
@@ -2,8 +2,9 @@
 #include <gtk/gtk.h>
 #pragma GCC diagnostic error "-Wstrict-prototypes"
 
-int main(void)
+int main(int argc, char *argv[])
 {
+	gtk_init(&argc, &argv);
 	gtk_info_bar_new();
 
 	return 0;
diff --git a/tools/perf/config/feature-checks/test-gtk2.c b/tools/perf/config/feature-checks/test-gtk2.c
index 1ac6d8a1fb14..6bd80e509439 100644
--- a/tools/perf/config/feature-checks/test-gtk2.c
+++ b/tools/perf/config/feature-checks/test-gtk2.c
@@ -4,7 +4,7 @@
 
 int main(int argc, char *argv[])
 {
-        gtk_init(&argc, &argv);
+	gtk_init(&argc, &argv);
 
         return 0;
 }
diff --git a/tools/perf/config/feature-checks/test-libaudit.c b/tools/perf/config/feature-checks/test-libaudit.c
index 854a65d3cc78..f7e791efa6d1 100644
--- a/tools/perf/config/feature-checks/test-libaudit.c
+++ b/tools/perf/config/feature-checks/test-libaudit.c
@@ -1,5 +1,7 @@
 #include <libaudit.h>
 
+extern int printf(const char *format, ...);
+
 int main(void)
 {
 	printf("error message: %s\n", audit_errno_to_name(0));
diff --git a/tools/perf/config/feature-checks/test-libbfd.c b/tools/perf/config/feature-checks/test-libbfd.c
index d03339c995d7..1886c78c30e7 100644
--- a/tools/perf/config/feature-checks/test-libbfd.c
+++ b/tools/perf/config/feature-checks/test-libbfd.c
@@ -1,7 +1,16 @@
 #include <bfd.h>
 
+extern int printf(const char *format, ...);
+
 int main(void)
 {
-	bfd_demangle(0, 0, 0);
+	char symbol[4096] = "FieldName__9ClassNameFd";
+	char *tmp;
+
+	tmp = bfd_demangle(0, symbol, 0);
+
+	printf("demangled symbol: {%s}\n", tmp);
+
 	return 0;
 }
+
diff --git a/tools/perf/config/feature-checks/test-libunwind.c b/tools/perf/config/feature-checks/test-libunwind.c
index 562274695c76..43b9369bcab7 100644
--- a/tools/perf/config/feature-checks/test-libunwind.c
+++ b/tools/perf/config/feature-checks/test-libunwind.c
@@ -10,11 +10,18 @@ extern int UNW_OBJ(dwarf_search_unwind_table) (unw_addr_space_t as,
 
 #define dwarf_search_unwind_table UNW_OBJ(dwarf_search_unwind_table)
 
+static unw_accessors_t accessors;
+
 int main(void)
 {
 	unw_addr_space_t addr_space;
-	addr_space = unw_create_addr_space(NULL, 0);
+
+	addr_space = unw_create_addr_space(&accessors, 0);
+	if (addr_space)
+		return 0;
+
 	unw_init_remote(NULL, addr_space, NULL);
 	dwarf_search_unwind_table(addr_space, 0, NULL, NULL, 0, NULL);
+
 	return 0;
 }
diff --git a/tools/perf/config/feature-checks/test-on-exit.c b/tools/perf/config/feature-checks/test-on-exit.c
index 473f1dea5316..8f64ed3a58d9 100644
--- a/tools/perf/config/feature-checks/test-on-exit.c
+++ b/tools/perf/config/feature-checks/test-on-exit.c
@@ -1,6 +1,15 @@
 #include <stdio.h>
 
+static void exit_fn(int status, void *__data)
+{
+	printf("exit status: %d, data: %d\n", status, *(int *)__data);
+}
+
+static int data = 123;
+
 int main(void)
 {
-	return on_exit(NULL, NULL);
+	on_exit(exit_fn, &data);
+
+	return 321;
 }
-- 
cgit 


From 3ca576a481f8c12fe606fb75232d52637c666ed0 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 2 Oct 2013 16:21:37 +0200
Subject: tools/perf/build: Collapse the test-all.c testcase

Simplify test-all.c by including it all the testcases via #include.

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-pcZlwqq5ou7Ebvkekvhtzfbm@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/feature-checks/test-all.c | 290 ++++++++++------------------
 1 file changed, 100 insertions(+), 190 deletions(-)

diff --git a/tools/perf/config/feature-checks/test-all.c b/tools/perf/config/feature-checks/test-all.c
index 9f7c4b165305..50d431892a0c 100644
--- a/tools/perf/config/feature-checks/test-all.c
+++ b/tools/perf/config/feature-checks/test-all.c
@@ -1,196 +1,106 @@
-
-#pragma GCC diagnostic ignored "-Wstrict-prototypes"
-
-#include <Python.h>
-
-#include <EXTERN.h>
-#include <perl.h>
-
-#include <stdio.h>
-#include <libelf.h>
-#include <gnu/libc-version.h>
-#include <dwarf.h>
-#include <elfutils/libdw.h>
-#include <elfutils/version.h>
-#include <libelf.h>
-#include <libunwind.h>
-#include <stdlib.h>
-#include <libaudit.h>
-#include <slang.h>
-#include <gtk/gtk.h>
-#include <bfd.h>
-#include <stdio.h>
-#include <execinfo.h>
-#include <stdio.h>
-#include <numa.h>
-#include <numaif.h>
-
-#pragma GCC diagnostic error "-Wstrict-prototypes"
-
-int main1(void)
-{
-	return puts("hi");
-}
-
-int main2(void)
-{
-	return puts("hi");
-}
-
-int main3(void)
-{
-	return puts("hi");
-}
-
-int main4(void)
-{
-	Elf *elf = elf_begin(0, ELF_C_READ, 0);
-	return (long)elf;
-}
-#
-int main5(void)
-{
-	Elf *elf = elf_begin(0, ELF_C_READ_MMAP, 0);
-	return (long)elf;
-}
-
-int main6(void)
-{
-	const char *version = gnu_get_libc_version();
-	return (long)version;
-}
-
-int main7(void)
-{
-	Dwarf *dbg = dwarf_begin(0, DWARF_C_READ);
-	return (long)dbg;
-}
-
-int main8(void)
-{
-	size_t dst;
-	return elf_getphdrnum(0, &dst);
-}
-
-extern int UNW_OBJ(dwarf_search_unwind_table) (unw_addr_space_t as,
-                                      unw_word_t ip,
-                                      unw_dyn_info_t *di,
-                                      unw_proc_info_t *pi,
-                                      int need_unwind_info, void *arg);
-
-
-#define dwarf_search_unwind_table UNW_OBJ(dwarf_search_unwind_table)
-
-int main9(void)
-{
-	unw_addr_space_t addr_space;
-	addr_space = unw_create_addr_space(NULL, 0);
-	unw_init_remote(NULL, addr_space, NULL);
-	dwarf_search_unwind_table(addr_space, 0, NULL, NULL, 0, NULL);
-	return 0;
-}
-
-int main10(void)
-{
-	printf("error message: %s\n", audit_errno_to_name(0));
-	return audit_open();
-}
-
-int main11(void)
-{
-	return SLsmg_init_smg();
-}
-
-int main12(int argc, char *argv[])
-{
-        gtk_init(&argc, &argv);
-
-        return 0;
-}
-
-int main13(void)
-{
-	gtk_info_bar_new();
-
-	return 0;
-}
-
-int main14(void)
-{
-	perl_alloc();
-
-	return 0;
-}
-
-int main15(void)
-{
-	Py_Initialize();
-	return 0;
-}
-
-#if PY_VERSION_HEX >= 0x03000000
-	#error
-#endif
-
-int main16(void)
-{
-	return 0;
-}
-
-int main17(void)
-{
-	bfd_demangle(0, 0, 0);
-	return 0;
-}
-
-void exit_function(int x, void *y)
-{
-}
-
-int main18(void)
-{
-	return on_exit(exit_function, NULL);
-}
-
-int main19(void)
-{
-	void *backtrace_fns[1];
-	size_t entries;
-
-	entries = backtrace(backtrace_fns, 1);
-	backtrace_symbols(backtrace_fns, entries);
-
-	return 0;
-}
-
-int main20(void)
-{
-	numa_available();
-	return 0;
-}
+/*
+ * test-all.c: Try to build all the main testcases at once.
+ *
+ * A well-configured system will have all the prereqs installed, so we can speed
+ * up auto-detection on such systems.
+ */
+
+/*
+ * Quirk: Python and Perl headers cannot be in arbitrary places, so keep
+ * these 3 testcases at the top:
+ */
+#define main main_test_libpython
+# include "test-libpython.c"
+#undef main
+
+#define main main_test_libpython_version
+# include "test-libpython-version.c"
+#undef main
+
+#define main main_test_libperl
+# include "test-libperl.c"
+#undef main
+
+#define main main_test_hello
+# include "test-hello.c"
+#undef main
+
+#define main main_test_libelf
+# include "test-libelf.c"
+#undef main
+
+#define main main_test_libelf_mmap
+# include "test-libelf-mmap.c"
+#undef main
+
+#define main main_test_glibc
+# include "test-glibc.c"
+#undef main
+
+#define main main_test_dwarf
+# include "test-dwarf.c"
+#undef main
+
+#define main main_test_libelf_getphdrnum
+# include "test-libelf-getphdrnum.c"
+#undef main
+
+#define main main_test_libunwind
+# include "test-libunwind.c"
+#undef main
+
+#define main main_test_libaudit
+# include "test-libaudit.c"
+#undef main
+
+#define main main_test_libslang
+# include "test-libslang.c"
+#undef main
+
+#define main main_test_gtk2
+# include "test-gtk2.c"
+#undef main
+
+#define main main_test_gtk2_infobar
+# include "test-gtk2-infobar.c"
+#undef main
+
+#define main main_test_libbfd
+# include "test-libbfd.c"
+#undef main
+
+#define main main_test_on_exit
+# include "test-on-exit.c"
+#undef main
+
+#define main main_test_backtrace
+# include "test-backtrace.c"
+#undef main
+
+#define main main_test_libnuma
+# include "test-libnuma.c"
+#undef main
 
 int main(int argc, char *argv[])
 {
-	main1();
-	main2();
-	main3();
-	main4();
-	main5();
-	main6();
-	main7();
-	main8();
-	main9();
-	main10();
-	main11();
-	main12(argc, argv);
-	main13();
-	main14();
-	main15();
-	main16();
-	main17();
-	main18();
-	main19();
-	main20();
+	main_test_libpython();
+	main_test_libpython_version();
+	main_test_libperl();
+	main_test_hello();
+	main_test_libelf();
+	main_test_libelf_mmap();
+	main_test_glibc();
+	main_test_dwarf();
+	main_test_libelf_getphdrnum();
+	main_test_libunwind();
+	main_test_libaudit();
+	main_test_libslang();
+	main_test_gtk2(argc, argv);
+	main_test_gtk2_infobar(argc, argv);
+	main_test_libbfd();
+	main_test_on_exit();
+	main_test_backtrace();
+	main_test_libnuma();
 
 	return 0;
 }
-- 
cgit 


From b016a0dd08999218a05a4b176bc08a9ff68ccc5e Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Thu, 3 Oct 2013 14:32:10 +0200
Subject: tools/perf/build: Pass through all targets to Makefile.perf

Jiri reported that 'make .o' stopped working:

  > [jolsa@krava perf]$ make -f Makefile perf.o
  > cc    -c -o perf.o perf.c
  > In file included from builtin.h:4:0,
  >                  from perf.c:9:
  > util/util.h:74:24: fatal error: lk/debugfs.h: No such file or directory
  > compilation terminated.
  > make: *** [perf.o] Error 1

This is due to GNU make having built-in rules for popular targets such
as *.o. Clear them out so that all targets as passed through to Makefile.perf.

Reported-by: Jiri Olsa <jolsa@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/n/tip-5wkuvmlaaxtfgepKcvRij8sh@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/Makefile | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 3b925ad0d5f5..6f6f13a13bb6 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -1,3 +1,10 @@
+
+#
+# Clear out the built-in rules GNU make defines by default (such as .o targets),
+# so that we pass through all targets to Makefile.perf:
+#
+.SUFFIXES:
+
 #
 # Do a parallel build with multiple jobs, based on the number of CPUs online
 # in this system: 'make -j8' on a 8-CPU system, etc.
-- 
cgit 


From 1c2d1d8cf4dbef33b8c6af6888bed2f4e659220e Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Thu, 3 Oct 2013 15:05:56 +0200
Subject: tools/perf/build: Make sure autodep feature binaries honor the O=
 setting

Arnaldo noticed that the feature-check binaries are generated in the
config/check-features/ directory even if O= is specified.

Implement $(OUTPUT) logic for config/check-features/Makefile.

Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-NLwlnv5prsubuey0vfocebym@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index e80ffe8262b0..3d656e3e6284 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -88,9 +88,14 @@ CFLAGS += -std=gnu99
 
 EXTLIBS = -lelf -lpthread -lrt -lm -ldl
 
+ifneq ($(OUTPUT),)
+  OUTPUT_FEATURES = $(OUTPUT)config/feature-checks/
+  $(shell mkdir -p $(OUTPUT_FEATURES))
+endif
+
 feature_check = $(eval $(feature_check_code))
 define feature_check_code
-  feature-$(1) := $(shell $(MAKE) -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
+  feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
 endef
 
 feature_set = $(eval $(feature_set_code))
@@ -138,7 +143,7 @@ CORE_FEATURE_TESTS =			\
 # to skip the print-out of the long features list if the file
 # existed before and after it was built:
 #
-ifeq ($(wildcard config/feature-checks/test-all),)
+ifeq ($(wildcard $(OUTPUT)config/feature-checks/test-all),)
   test-all-failed := 1
 else
   test-all-failed := 0
@@ -168,7 +173,7 @@ ifeq ($(feature-all), 1)
   #
   $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_set,$(feat)))
 else
-  $(shell $(MAKE) -i -j -C config/feature-checks $(CORE_FEATURE_TESTS) >/dev/null 2>&1)
+  $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) -i -j -C config/feature-checks $(CORE_FEATURE_TESTS) >/dev/null 2>&1)
   $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_check,$(feat)))
 endif
 
-- 
cgit 


From 684f434cc05a122938b75e055d7d799f1dd58d55 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Fri, 4 Oct 2013 11:11:32 +0200
Subject: tools/perf/build: Exclude MAKEFLAGS from nested invocation

In case the user specifies MAKEFLAGS as an environment variable,
or uses 'make -jN' explicitly, the options can conflict and result in:

    BUILD: Doing 'make -j8' parallel build
    make[1]: warning: -jN forced in submake: disabling jobserver mode.
    GEN common-cmds.h
    make[1]: *** write jobserver: Bad file descriptor.  Stop.

Make sure we invoke the main makefile in a pristine state.

Users who want to do something non-standard can use the:

  make -f Makefile.perf

method to invoke the makefile.

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-uen6hzTvkqqngqwjma9yoEgw@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/Makefile | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 6f6f13a13bb6..74f52d8f9631 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -1,3 +1,10 @@
+#
+# This is a simple wrapper Makefile that calls the main Makefile.perf
+# with a -j option to do parallel builds
+#
+# If you want to invoke the perf build in some non-standard way then
+# you can use the 'make -f Makefile.perf' method to invoke it.
+#
 
 #
 # Clear out the built-in rules GNU make defines by default (such as .o targets),
@@ -5,6 +12,11 @@
 #
 .SUFFIXES:
 
+#
+# We don't want to pass along options like -j:
+#
+unexport MAKEFLAGS
+
 #
 # Do a parallel build with multiple jobs, based on the number of CPUs online
 # in this system: 'make -j8' on a 8-CPU system, etc.
@@ -18,14 +30,12 @@ ifeq ($(JOBS),)
   endif
 endif
 
-export JOBS
-
 define print_msg
   @printf '    BUILD: Doing '\''make \033[33m-j'$(JOBS)'\033[m'\'' parallel build\n'
 endef
 
 define make
-  @$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) $@
+  @$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) O=$(O) $@
 endef
 
 #
-- 
cgit 


From b102420b500da97e0fc18d94f0600bddeced1b99 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Fri, 4 Oct 2013 12:08:05 +0200
Subject: tools/perf/build: Fix non-canonical directory names in O=

This was a long-standing bug, relative pathnames like O=dir did not fully
work in the build system:

    $ make O=localdir clean

    SUBDIR Documentation
    ../../scripts/Makefile.include:3: *** O=localdir does not exist.  Stop.
    make[1]: *** [clean] Error 2
    make: *** [clean] Error 2

Fix this by canonizing the directory before passing it to Makefile.perf.

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-hchMp1hozn9tqgswWcooxcru@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/Makefile | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 74f52d8f9631..9580ebe260e0 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -30,12 +30,19 @@ ifeq ($(JOBS),)
   endif
 endif
 
+#
+# Only pass canonical directory names as the output directory:
+#
+ifneq ($(O),)
+  FULL_O := $(shell readlink -f $(O))
+endif
+
 define print_msg
   @printf '    BUILD: Doing '\''make \033[33m-j'$(JOBS)'\033[m'\'' parallel build\n'
 endef
 
 define make
-  @$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) O=$(O) $@
+  @$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) O=$(FULL_O) $@
 endef
 
 #
-- 
cgit 


From 1f7c645ab4b8326fef5afcd842795e071ecce9df Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Fri, 4 Oct 2013 12:14:59 +0200
Subject: tools/perf/build: Fix O=/some/dir perf.o type of targets
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

If someone specifies a single target, mixed with O=, the following way:

    hubble:~/tip/tools/perf> make O=/tmp/perf util/stat.o
    BUILD: Doing 'make -j8' parallel build
    gcc  -Wbad-function-cast -Wdeclaration-after-statement -Wformat-security -Wformat-y2k [...]

The build might even fail, if a target depends on other targets:

    hubble:~/tip/tools/perf> make O=/tmp/perf perf.o
    ...
    perf.c: In function ‘handle_options’:
    perf.c:155:21: error: ‘PERF_HTML_PATH’ undeclared (first use in this function)

The correct way to invoke such targets is:

    hubble:~/tip/tools/perf> make O=/tmp/perf /tmp/perf/perf.o
    BUILD: Doing 'make -j8' parallel build
    GEN /tmp/perf/common-cmds.h
    CC /tmp/perf/perf.o

But that's unnecessary typing and it's also easy to mistakenly build into the
source directory.

To fix this remove the generic suffix rules and add redirection to $(OUTPUT)
for the most popular .o targets.

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-mk0oiukmhgSbrll6chrPkkqr@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/Makefile.perf | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 178a1c87db13..a24f6c280b95 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -576,7 +576,21 @@ $(OUTPUT)perf.o perf.spec \
 	: $(OUTPUT)PERF-VERSION-FILE
 
 .SUFFIXES:
-.SUFFIXES: .o .c .S .s
+
+#
+# If a target does not match any of the later rules then prefix it by $(OUTPUT)
+# This makes targets like 'make O=/tmp/perf perf.o' work in a natural way.
+#
+ifneq ($(OUTPUT),)
+%.o: $(OUTPUT)%.o
+	@echo "    # Redirected target $@ => $(OUTPUT)$@"
+util/%.o: $(OUTPUT)util/%.o
+	@echo "    # Redirected target $@ => $(OUTPUT)util/$@"
+bench/%.o: $(OUTPUT)bench/%.o
+	@echo "    # Redirected target $@ => $(OUTPUT)bench/$@"
+tests/%.o: $(OUTPUT)tests/%.o
+	@echo "    # Redirected target $@ => $(OUTPUT)tests/$@"
+endif
 
 # These two need to be here so that when O= is not used they take precedence
 # over the general rule for .o
-- 
cgit 


From 20c99e82173bed9e4e0013ec45c0b2b3b80b65d5 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 7 Oct 2013 13:27:23 +0200
Subject: tools/perf/build: Harmonize the style of the feature testcases

The various testcases used different styles, which was not really
visible as long as they hid in feature-tests.mak. Now that they
are out in the open make them prettier.

( Also delete the leftover, empty feature-tests.mak file. )

Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-drDWk8xltndjdsespzjbhu6w@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/feature-checks/test-backtrace.c         | 1 -
 tools/perf/config/feature-checks/test-cplus-demangle.c    | 1 -
 tools/perf/config/feature-checks/test-dwarf.c             | 1 +
 tools/perf/config/feature-checks/test-glibc.c             | 2 +-
 tools/perf/config/feature-checks/test-libaudit.c          | 1 +
 tools/perf/config/feature-checks/test-libbfd.c            | 1 -
 tools/perf/config/feature-checks/test-libelf-getphdrnum.c | 3 ++-
 tools/perf/config/feature-checks/test-libelf-mmap.c       | 3 ++-
 tools/perf/config/feature-checks/test-libelf.c            | 1 +
 tools/perf/config/feature-checks/test-libnuma.c           | 1 +
 tools/perf/config/feature-checks/test-libpython.c         | 3 ++-
 tools/perf/config/feature-tests.mak                       | 2 --
 12 files changed, 11 insertions(+), 9 deletions(-)
 delete mode 100644 tools/perf/config/feature-tests.mak

diff --git a/tools/perf/config/feature-checks/test-backtrace.c b/tools/perf/config/feature-checks/test-backtrace.c
index 5b33bcf12c27..7124aa1dc8fb 100644
--- a/tools/perf/config/feature-checks/test-backtrace.c
+++ b/tools/perf/config/feature-checks/test-backtrace.c
@@ -11,4 +11,3 @@ int main(void)
 
 	return 0;
 }
-
diff --git a/tools/perf/config/feature-checks/test-cplus-demangle.c b/tools/perf/config/feature-checks/test-cplus-demangle.c
index ab29f80570af..610c686e0009 100644
--- a/tools/perf/config/feature-checks/test-cplus-demangle.c
+++ b/tools/perf/config/feature-checks/test-cplus-demangle.c
@@ -12,4 +12,3 @@ int main(void)
 
 	return 0;
 }
-
diff --git a/tools/perf/config/feature-checks/test-dwarf.c b/tools/perf/config/feature-checks/test-dwarf.c
index 783dfcd9a5c4..3fc1801ce4a9 100644
--- a/tools/perf/config/feature-checks/test-dwarf.c
+++ b/tools/perf/config/feature-checks/test-dwarf.c
@@ -5,5 +5,6 @@
 int main(void)
 {
 	Dwarf *dbg = dwarf_begin(0, DWARF_C_READ);
+
 	return (long)dbg;
 }
diff --git a/tools/perf/config/feature-checks/test-glibc.c b/tools/perf/config/feature-checks/test-glibc.c
index 13c66a58f2ec..b0820345cd98 100644
--- a/tools/perf/config/feature-checks/test-glibc.c
+++ b/tools/perf/config/feature-checks/test-glibc.c
@@ -3,6 +3,6 @@
 int main(void)
 {
 	const char *version = gnu_get_libc_version();
+
 	return (long)version;
 }
-
diff --git a/tools/perf/config/feature-checks/test-libaudit.c b/tools/perf/config/feature-checks/test-libaudit.c
index f7e791efa6d1..afc019f08641 100644
--- a/tools/perf/config/feature-checks/test-libaudit.c
+++ b/tools/perf/config/feature-checks/test-libaudit.c
@@ -5,5 +5,6 @@ extern int printf(const char *format, ...);
 int main(void)
 {
 	printf("error message: %s\n", audit_errno_to_name(0));
+
 	return audit_open();
 }
diff --git a/tools/perf/config/feature-checks/test-libbfd.c b/tools/perf/config/feature-checks/test-libbfd.c
index 1886c78c30e7..24059907e990 100644
--- a/tools/perf/config/feature-checks/test-libbfd.c
+++ b/tools/perf/config/feature-checks/test-libbfd.c
@@ -13,4 +13,3 @@ int main(void)
 
 	return 0;
 }
-
diff --git a/tools/perf/config/feature-checks/test-libelf-getphdrnum.c b/tools/perf/config/feature-checks/test-libelf-getphdrnum.c
index 58eca5332520..d710459306c3 100644
--- a/tools/perf/config/feature-checks/test-libelf-getphdrnum.c
+++ b/tools/perf/config/feature-checks/test-libelf-getphdrnum.c
@@ -1,7 +1,8 @@
 #include <libelf.h>
-#
+
 int main(void)
 {
 	size_t dst;
+
 	return elf_getphdrnum(0, &dst);
 }
diff --git a/tools/perf/config/feature-checks/test-libelf-mmap.c b/tools/perf/config/feature-checks/test-libelf-mmap.c
index 1c648159c705..564427d7ef18 100644
--- a/tools/perf/config/feature-checks/test-libelf-mmap.c
+++ b/tools/perf/config/feature-checks/test-libelf-mmap.c
@@ -1,7 +1,8 @@
 #include <libelf.h>
-#
+
 int main(void)
 {
 	Elf *elf = elf_begin(0, ELF_C_READ_MMAP, 0);
+
 	return (long)elf;
 }
diff --git a/tools/perf/config/feature-checks/test-libelf.c b/tools/perf/config/feature-checks/test-libelf.c
index 1a08f9717344..08db322d8957 100644
--- a/tools/perf/config/feature-checks/test-libelf.c
+++ b/tools/perf/config/feature-checks/test-libelf.c
@@ -3,5 +3,6 @@
 int main(void)
 {
 	Elf *elf = elf_begin(0, ELF_C_READ, 0);
+
 	return (long)elf;
 }
diff --git a/tools/perf/config/feature-checks/test-libnuma.c b/tools/perf/config/feature-checks/test-libnuma.c
index 70510a923e5a..4763d9cd587d 100644
--- a/tools/perf/config/feature-checks/test-libnuma.c
+++ b/tools/perf/config/feature-checks/test-libnuma.c
@@ -4,5 +4,6 @@
 int main(void)
 {
 	numa_available();
+
 	return 0;
 }
diff --git a/tools/perf/config/feature-checks/test-libpython.c b/tools/perf/config/feature-checks/test-libpython.c
index 72267972fa98..b24b28ad6324 100644
--- a/tools/perf/config/feature-checks/test-libpython.c
+++ b/tools/perf/config/feature-checks/test-libpython.c
@@ -1,7 +1,8 @@
 #include <Python.h>
-#
+
 int main(void)
 {
 	Py_Initialize();
+
 	return 0;
 }
diff --git a/tools/perf/config/feature-tests.mak b/tools/perf/config/feature-tests.mak
deleted file mode 100644
index 139597f9cb07..000000000000
--- a/tools/perf/config/feature-tests.mak
+++ /dev/null
@@ -1,2 +0,0 @@
-
-
-- 
cgit 


From aa4acf6cf102f639a2023b389ca8be8b8d9cad52 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 7 Oct 2013 17:51:29 +0200
Subject: tools/perf/build: Pass through LDFLAGS to feature tests

David Ahern reported that when passing in LDFLAGS=-static then
the feature checks still succeed - causing build failures down
the line because the static libraries are missing.

Solve this by passing through LDFLAGS to the feature-check
Makefile.

Reported-by: David Ahern <dsahern@gmail.com>
Tested-by: David Ahern <dsahern@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/20131007155129.GA1066@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                | 4 ++--
 tools/perf/config/feature-checks/Makefile | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 3d656e3e6284..78f3b3eff12a 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -95,7 +95,7 @@ endif
 
 feature_check = $(eval $(feature_check_code))
 define feature_check_code
-  feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
+  feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) LDFLAGS=$(LDFLAGS) -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
 endef
 
 feature_set = $(eval $(feature_set_code))
@@ -173,7 +173,7 @@ ifeq ($(feature-all), 1)
   #
   $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_set,$(feat)))
 else
-  $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) -i -j -C config/feature-checks $(CORE_FEATURE_TESTS) >/dev/null 2>&1)
+  $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) LDFLAGS=$(LDFLAGS) -i -j -C config/feature-checks $(CORE_FEATURE_TESTS) >/dev/null 2>&1)
   $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_check,$(feat)))
 endif
 
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index e21bceb80bf2..8ecac1908d5e 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -32,7 +32,7 @@ CC := $(CC) -MD
 
 all: $(FILES)
 
-BUILD = $(CC) -o $(OUTPUT)$@ $@.c
+BUILD = $(CC) $(LDFLAGS) -o $(OUTPUT)$@ $@.c
 
 ###############################
 
-- 
cgit 


From 165108a92fc554d51e73b143b69b77e7c278da78 Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Tue, 8 Oct 2013 17:51:10 +0200
Subject: tools/perf/build: Clean up feature_print_code()

Remove DUMMY by making sure 'feature_print' is evaluated and thus
all messages are printed.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/20131008155110.GA15558@krava.redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 78f3b3eff12a..f5d661f5637d 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -180,21 +180,21 @@ endif
 #
 # Print the result of the feature test:
 #
-feature_print = $(eval $(feature_print_code))
+feature_print = $(eval $(feature_print_code)) $(info $(MSG))
+
 define feature_print_code
   ifeq ($(feature-$(1)), 1)
     MSG = $(shell printf '...%30s: [ \033[32mon\033[m  ]' $(1))
   else
     MSG = $(shell printf '...%30s: [ \033[31mOFF\033[m ]' $(1))
   endif
-  $(info $(MSG))
 endef
 
 #
 # Only print out our features if we rebuilt the testcases or if a test failed:
 #
 ifeq ($(test-all-failed), 1)
-  $(foreach feat,$(CORE_FEATURE_TESTS) DUMMY,$(call feature_print,$(feat)))
+  $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_print,$(feat)))
   $(info )
 endif
 
-- 
cgit 


From 325529d1ec7538b792c2adc2e243382f9f85dfff Mon Sep 17 00:00:00 2001
From: Suman Anna <s-anna@ti.com>
Date: Tue, 17 Sep 2013 14:31:03 -0500
Subject: ARM: OMAP5: hwmod data: Add spinlock data

Add the hwmod data for the spinlock IP in OMAP5 SoC.
This is needed to be able to enable the OMAP spinlock
support for OMAP5.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/omap_hwmod_54xx_data.c | 44 ++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

diff --git a/arch/arm/mach-omap2/omap_hwmod_54xx_data.c b/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
index b1725478d767..b3ed4d40045a 100644
--- a/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
@@ -1145,6 +1145,41 @@ static struct omap_hwmod omap54xx_mpu_hwmod = {
 	},
 };
 
+/*
+ * 'spinlock' class
+ * spinlock provides hardware assistance for synchronizing the processes
+ * running on multiple processors
+ */
+
+static struct omap_hwmod_class_sysconfig omap54xx_spinlock_sysc = {
+	.rev_offs	= 0x0000,
+	.sysc_offs	= 0x0010,
+	.syss_offs	= 0x0014,
+	.sysc_flags	= (SYSC_HAS_AUTOIDLE | SYSC_HAS_CLOCKACTIVITY |
+			   SYSC_HAS_ENAWAKEUP | SYSC_HAS_SIDLEMODE |
+			   SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class omap54xx_spinlock_hwmod_class = {
+	.name	= "spinlock",
+	.sysc	= &omap54xx_spinlock_sysc,
+};
+
+/* spinlock */
+static struct omap_hwmod omap54xx_spinlock_hwmod = {
+	.name		= "spinlock",
+	.class		= &omap54xx_spinlock_hwmod_class,
+	.clkdm_name	= "l4cfg_clkdm",
+	.prcm = {
+		.omap4 = {
+			.clkctrl_offs = OMAP54XX_CM_L4CFG_SPINLOCK_CLKCTRL_OFFSET,
+			.context_offs = OMAP54XX_RM_L4CFG_SPINLOCK_CONTEXT_OFFSET,
+		},
+	},
+};
+
 /*
  * 'timer' class
  * general purpose timer module with accurate 1ms tick
@@ -2077,6 +2112,14 @@ static struct omap_hwmod_ocp_if omap54xx_l4_cfg__mpu = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
+/* l4_cfg -> spinlock */
+static struct omap_hwmod_ocp_if omap54xx_l4_cfg__spinlock = {
+	.master		= &omap54xx_l4_cfg_hwmod,
+	.slave		= &omap54xx_spinlock_hwmod,
+	.clk		= "l4_root_clk_div",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
 /* l4_wkup -> timer1 */
 static struct omap_hwmod_ocp_if omap54xx_l4_wkup__timer1 = {
 	.master		= &omap54xx_l4_wkup_hwmod,
@@ -2296,6 +2339,7 @@ static struct omap_hwmod_ocp_if *omap54xx_hwmod_ocp_ifs[] __initdata = {
 	&omap54xx_l4_per__mmc4,
 	&omap54xx_l4_per__mmc5,
 	&omap54xx_l4_cfg__mpu,
+	&omap54xx_l4_cfg__spinlock,
 	&omap54xx_l4_wkup__timer1,
 	&omap54xx_l4_per__timer2,
 	&omap54xx_l4_per__timer3,
-- 
cgit 


From f0d48990e19399dc8bb798784c965346b6519f4a Mon Sep 17 00:00:00 2001
From: Suman Anna <s-anna@ti.com>
Date: Tue, 17 Sep 2013 14:31:26 -0500
Subject: ARM: AM33xx: hwmod_data: add the sysc configuration for spinlock

Add the missing sysc configuration to the AM335 spinlock hwmod
data. This ensures that smart-idle is enabled whenever the module
is enabled by the driver.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/omap_hwmod_33xx_data.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
index 215894f8910d..1084f2cadb78 100644
--- a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
@@ -1278,8 +1278,21 @@ static struct omap_hwmod am33xx_spi1_hwmod = {
  * spinlock provides hardware assistance for synchronizing the
  * processes running on multiple processors
  */
+
+static struct omap_hwmod_class_sysconfig am33xx_spinlock_sysc = {
+	.rev_offs	= 0x0000,
+	.sysc_offs	= 0x0010,
+	.syss_offs	= 0x0014,
+	.sysc_flags	= (SYSC_HAS_AUTOIDLE | SYSC_HAS_CLOCKACTIVITY |
+			   SYSC_HAS_ENAWAKEUP | SYSC_HAS_SIDLEMODE |
+			   SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
 static struct omap_hwmod_class am33xx_spinlock_hwmod_class = {
 	.name		= "spinlock",
+	.sysc		= &am33xx_spinlock_sysc,
 };
 
 static struct omap_hwmod am33xx_spinlock_hwmod = {
-- 
cgit 


From b2eb000265115ecb4802ba2ffb35d197ab251390 Mon Sep 17 00:00:00 2001
From: Rajendra Nayak <rnayak@ti.com>
Date: Tue, 20 Aug 2013 13:02:44 +0530
Subject: ARM: OMAP2+: hwmod: cleanup HWMOD_INIT_NO_RESET usage

For modules/IPs/hwmods which do not have
-1- sys->class->reset()
and
-2- hardreset lines
and
-3- No way to do an ocp reset (no sysc control)
the flag 'HWMOD_INIT_NO_RESET' is not much useful.

Cleanup all such instances across various hwmod data files.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/omap_hwmod_33xx_data.c | 18 +++++++++---------
 arch/arm/mach-omap2/omap_hwmod_44xx_data.c |  6 +++---
 arch/arm/mach-omap2/omap_hwmod_54xx_data.c |  6 +++---
 3 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
index 1084f2cadb78..dd3aa31c313b 100644
--- a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
@@ -52,7 +52,7 @@ static struct omap_hwmod am33xx_emif_hwmod = {
 	.name		= "emif",
 	.class		= &am33xx_emif_hwmod_class,
 	.clkdm_name	= "l3_clkdm",
-	.flags		= (HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET),
+	.flags		= HWMOD_INIT_NO_IDLE,
 	.main_clk	= "dpll_ddr_m2_div2_ck",
 	.prcm		= {
 		.omap4	= {
@@ -74,7 +74,7 @@ static struct omap_hwmod am33xx_l3_main_hwmod = {
 	.name		= "l3_main",
 	.class		= &am33xx_l3_hwmod_class,
 	.clkdm_name	= "l3_clkdm",
-	.flags		= (HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET),
+	.flags		= HWMOD_INIT_NO_IDLE,
 	.main_clk	= "l3_gclk",
 	.prcm		= {
 		.omap4	= {
@@ -96,7 +96,7 @@ static struct omap_hwmod am33xx_l3_instr_hwmod = {
 	.name		= "l3_instr",
 	.class		= &am33xx_l3_hwmod_class,
 	.clkdm_name	= "l3_clkdm",
-	.flags		= (HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET),
+	.flags		= HWMOD_INIT_NO_IDLE,
 	.main_clk	= "l3_gclk",
 	.prcm		= {
 		.omap4	= {
@@ -119,7 +119,7 @@ static struct omap_hwmod am33xx_l4_ls_hwmod = {
 	.name		= "l4_ls",
 	.class		= &am33xx_l4_hwmod_class,
 	.clkdm_name	= "l4ls_clkdm",
-	.flags		= (HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET),
+	.flags		= HWMOD_INIT_NO_IDLE,
 	.main_clk	= "l4ls_gclk",
 	.prcm		= {
 		.omap4	= {
@@ -134,7 +134,7 @@ static struct omap_hwmod am33xx_l4_hs_hwmod = {
 	.name		= "l4_hs",
 	.class		= &am33xx_l4_hwmod_class,
 	.clkdm_name	= "l4hs_clkdm",
-	.flags		= (HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET),
+	.flags		= HWMOD_INIT_NO_IDLE,
 	.main_clk	= "l4hs_gclk",
 	.prcm		= {
 		.omap4	= {
@@ -150,7 +150,7 @@ static struct omap_hwmod am33xx_l4_wkup_hwmod = {
 	.name		= "l4_wkup",
 	.class		= &am33xx_l4_hwmod_class,
 	.clkdm_name	= "l4_wkup_clkdm",
-	.flags		= (HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET),
+	.flags		= HWMOD_INIT_NO_IDLE,
 	.prcm		= {
 		.omap4	= {
 			.clkctrl_offs	= AM33XX_CM_WKUP_L4WKUP_CLKCTRL_OFFSET,
@@ -170,7 +170,7 @@ static struct omap_hwmod am33xx_mpu_hwmod = {
 	.name		= "mpu",
 	.class		= &am33xx_mpu_hwmod_class,
 	.clkdm_name	= "mpu_clkdm",
-	.flags		= (HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET),
+	.flags		= HWMOD_INIT_NO_IDLE,
 	.main_clk	= "dpll_mpu_m2_ck",
 	.prcm		= {
 		.omap4	= {
@@ -450,7 +450,7 @@ static struct omap_hwmod am33xx_ocmcram_hwmod = {
 	.name		= "ocmcram",
 	.class		= &am33xx_ocmcram_hwmod_class,
 	.clkdm_name	= "l3_clkdm",
-	.flags		= (HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET),
+	.flags		= HWMOD_INIT_NO_IDLE,
 	.main_clk	= "l3_gclk",
 	.prcm		= {
 		.omap4	= {
@@ -532,7 +532,7 @@ static struct omap_hwmod am33xx_control_hwmod = {
 	.name		= "control",
 	.class		= &am33xx_control_hwmod_class,
 	.clkdm_name	= "l4_wkup_clkdm",
-	.flags		= (HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET),
+	.flags		= HWMOD_INIT_NO_IDLE,
 	.main_clk	= "dpll_core_m4_div2_ck",
 	.prcm		= {
 		.omap4	= {
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index 9c3b504477d7..1e5b12cb8246 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -914,7 +914,7 @@ static struct omap_hwmod omap44xx_emif1_hwmod = {
 	.name		= "emif1",
 	.class		= &omap44xx_emif_hwmod_class,
 	.clkdm_name	= "l3_emif_clkdm",
-	.flags		= HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET,
+	.flags		= HWMOD_INIT_NO_IDLE,
 	.main_clk	= "ddrphy_ck",
 	.prcm = {
 		.omap4 = {
@@ -930,7 +930,7 @@ static struct omap_hwmod omap44xx_emif2_hwmod = {
 	.name		= "emif2",
 	.class		= &omap44xx_emif_hwmod_class,
 	.clkdm_name	= "l3_emif_clkdm",
-	.flags		= HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET,
+	.flags		= HWMOD_INIT_NO_IDLE,
 	.main_clk	= "ddrphy_ck",
 	.prcm = {
 		.omap4 = {
@@ -2193,7 +2193,7 @@ static struct omap_hwmod omap44xx_mpu_hwmod = {
 	.name		= "mpu",
 	.class		= &omap44xx_mpu_hwmod_class,
 	.clkdm_name	= "mpuss_clkdm",
-	.flags		= HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET,
+	.flags		= HWMOD_INIT_NO_IDLE,
 	.main_clk	= "dpll_mpu_m2_ck",
 	.prcm = {
 		.omap4 = {
diff --git a/arch/arm/mach-omap2/omap_hwmod_54xx_data.c b/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
index b3ed4d40045a..68a78ef1cbf3 100644
--- a/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
@@ -352,7 +352,7 @@ static struct omap_hwmod omap54xx_emif1_hwmod = {
 	.name		= "emif1",
 	.class		= &omap54xx_emif_hwmod_class,
 	.clkdm_name	= "emif_clkdm",
-	.flags		= HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET,
+	.flags		= HWMOD_INIT_NO_IDLE,
 	.main_clk	= "dpll_core_h11x2_ck",
 	.prcm = {
 		.omap4 = {
@@ -368,7 +368,7 @@ static struct omap_hwmod omap54xx_emif2_hwmod = {
 	.name		= "emif2",
 	.class		= &omap54xx_emif_hwmod_class,
 	.clkdm_name	= "emif_clkdm",
-	.flags		= HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET,
+	.flags		= HWMOD_INIT_NO_IDLE,
 	.main_clk	= "dpll_core_h11x2_ck",
 	.prcm = {
 		.omap4 = {
@@ -1135,7 +1135,7 @@ static struct omap_hwmod omap54xx_mpu_hwmod = {
 	.name		= "mpu",
 	.class		= &omap54xx_mpu_hwmod_class,
 	.clkdm_name	= "mpu_clkdm",
-	.flags		= HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET,
+	.flags		= HWMOD_INIT_NO_IDLE,
 	.main_clk	= "dpll_mpu_m2_ck",
 	.prcm = {
 		.omap4 = {
-- 
cgit 


From 789fd03331aa1ec45cb58168e2d82525c97c7351 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
Date: Fri, 4 Oct 2013 18:07:24 -0700
Subject: cfg80211: rename regulatory_hint_11d() to
 regulatory_hint_country_ie()

It is incorrect to refer to this as 11d as 802.11d was just a
proposed amendment, 802.11d was merged to the standard so
use proper terminology.

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 include/uapi/linux/nl80211.h | 2 +-
 net/wireless/reg.c           | 4 ++--
 net/wireless/reg.h           | 4 ++--
 net/wireless/sme.c           | 4 ++--
 4 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index a58ea652cc24..8c0417c222c6 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -988,7 +988,7 @@ enum nl80211_commands {
  * 	to query the CRDA to retrieve one regulatory domain. This attribute can
  * 	also be used by userspace to query the kernel for the currently set
  * 	regulatory domain. We chose an alpha2 as that is also used by the
- * 	IEEE-802.11d country information element to identify a country.
+ * 	IEEE-802.11 country information element to identify a country.
  * 	Users can also simply ask the wireless core to set regulatory domain
  * 	to a specific alpha2.
  * @NL80211_ATTR_REG_RULES: a nested array of regulatory domain regulatory
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index d62cb1e91475..8fbe664fdcf8 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -1699,8 +1699,8 @@ int regulatory_hint(struct wiphy *wiphy, const char *alpha2)
 }
 EXPORT_SYMBOL(regulatory_hint);
 
-void regulatory_hint_11d(struct wiphy *wiphy, enum ieee80211_band band,
-			 const u8 *country_ie, u8 country_ie_len)
+void regulatory_hint_country_ie(struct wiphy *wiphy, enum ieee80211_band band,
+				const u8 *country_ie, u8 country_ie_len)
 {
 	char alpha2[2];
 	enum environment_cap env = ENVIRON_ANY;
diff --git a/net/wireless/reg.h b/net/wireless/reg.h
index af2d5f8a5d82..9677e3c13da9 100644
--- a/net/wireless/reg.h
+++ b/net/wireless/reg.h
@@ -58,7 +58,7 @@ int regulatory_hint_found_beacon(struct wiphy *wiphy,
 				 gfp_t gfp);
 
 /**
- * regulatory_hint_11d - hints a country IE as a regulatory domain
+ * regulatory_hint_country_ie - hints a country IE as a regulatory domain
  * @wiphy: the wireless device giving the hint (used only for reporting
  *	conflicts)
  * @band: the band on which the country IE was received on. This determines
@@ -78,7 +78,7 @@ int regulatory_hint_found_beacon(struct wiphy *wiphy,
  * not observed. For this reason if a triplet is seen with channel
  * information for a band the BSS is not present in it will be ignored.
  */
-void regulatory_hint_11d(struct wiphy *wiphy,
+void regulatory_hint_country_ie(struct wiphy *wiphy,
 			 enum ieee80211_band band,
 			 const u8 *country_ie,
 			 u8 country_ie_len);
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 20e86a95dc4e..65f800890d70 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -682,8 +682,8 @@ void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
 	 * - country_ie + 2, the start of the country ie data, and
 	 * - and country_ie[1] which is the IE length
 	 */
-	regulatory_hint_11d(wdev->wiphy, bss->channel->band,
-			    country_ie + 2, country_ie[1]);
+	regulatory_hint_country_ie(wdev->wiphy, bss->channel->band,
+				   country_ie + 2, country_ie[1]);
 	kfree(country_ie);
 }
 
-- 
cgit 


From f92d9597f781f6a5a39c73dc71604bd8a21c5299 Mon Sep 17 00:00:00 2001
From: Rajendra Nayak <rnayak@ti.com>
Date: Wed, 9 Oct 2013 01:26:55 -0600
Subject: ARM: OMAP2+: hwmod: Extract no-idle and no-reset info from DT

Now that we have DT bindings to specify which devices should not
be reset and idled during init, make hwmod extract the information
(and store them in internal flags) from Device tree.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
[paul@pwsan.com: updated to apply]
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/omap_hwmod.c | 24 +++++++++++++++++-------
 1 file changed, 17 insertions(+), 7 deletions(-)

diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 3d5db8c83b3c..1c217e89deb9 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -2357,6 +2357,8 @@ static struct device_node *of_dev_hwmod_lookup(struct device_node *np,
 /**
  * _init_mpu_rt_base - populate the virtual address for a hwmod
  * @oh: struct omap_hwmod * to locate the virtual address
+ * @data: (unused, caller should pass NULL)
+ * @np: struct device_node * of the IP block's device node in the DT data
  *
  * Cache the virtual address used by the MPU to access this IP block's
  * registers.  This address is needed early so the OCP registers that
@@ -2365,11 +2367,11 @@ static struct device_node *of_dev_hwmod_lookup(struct device_node *np,
  * Returns 0 on success, -EINVAL if an invalid hwmod is passed, and
  * -ENXIO on absent or invalid register target address space.
  */
-static int __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data)
+static int __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data,
+				    struct device_node *np)
 {
 	struct omap_hwmod_addr_space *mem;
 	void __iomem *va_start = NULL;
-	struct device_node *np;
 
 	if (!oh)
 		return -EINVAL;
@@ -2385,12 +2387,10 @@ static int __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data)
 			 oh->name);
 
 		/* Extract the IO space from device tree blob */
-		if (!of_have_populated_dt())
+		if (!np)
 			return -ENXIO;
 
-		np = of_dev_hwmod_lookup(of_find_node_by_name(NULL, "ocp"), oh);
-		if (np)
-			va_start = of_iomap(np, oh->mpu_rt_idx);
+		va_start = of_iomap(np, oh->mpu_rt_idx);
 	} else {
 		va_start = ioremap(mem->pa_start, mem->pa_end - mem->pa_start);
 	}
@@ -2423,12 +2423,16 @@ static int __init _init_mpu_rt_base(struct omap_hwmod *oh, void *data)
 static int __init _init(struct omap_hwmod *oh, void *data)
 {
 	int r;
+	struct device_node *np = NULL;
 
 	if (oh->_state != _HWMOD_STATE_REGISTERED)
 		return 0;
 
+	if (of_have_populated_dt())
+		np = of_dev_hwmod_lookup(of_find_node_by_name(NULL, "ocp"), oh);
+
 	if (oh->class->sysc) {
-		r = _init_mpu_rt_base(oh, NULL);
+		r = _init_mpu_rt_base(oh, NULL, np);
 		if (r < 0) {
 			WARN(1, "omap_hwmod: %s: doesn't have mpu register target base\n",
 			     oh->name);
@@ -2442,6 +2446,12 @@ static int __init _init(struct omap_hwmod *oh, void *data)
 		return -EINVAL;
 	}
 
+	if (np)
+		if (of_find_property(np, "ti,no-reset-on-init", NULL))
+			oh->flags |= HWMOD_INIT_NO_RESET;
+		if (of_find_property(np, "ti,no-idle-on-init", NULL))
+			oh->flags |= HWMOD_INIT_NO_IDLE;
+
 	oh->_state = _HWMOD_STATE_INITIALIZED;
 
 	return 0;
-- 
cgit 


From 4d26ec5ddf93e7e133e36fd0454b54a3938f7d3c Mon Sep 17 00:00:00 2001
From: Sangjung Woo <sangjung.woo@samsung.com>
Date: Thu, 3 Oct 2013 23:04:27 +0900
Subject: fbdev: sh_mobile_hdmi: Use devm_kzalloc()

Use devm_kzalloc() instead of kzalloc() in order to be free
automatically. This makes cleanup paths more simple.

Signed-off-by: Sangjung Woo <sangjung.woo@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/sh_mobile_hdmi.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/video/sh_mobile_hdmi.c b/drivers/video/sh_mobile_hdmi.c
index 45417fa9749b..5e2845b9f3a8 100644
--- a/drivers/video/sh_mobile_hdmi.c
+++ b/drivers/video/sh_mobile_hdmi.c
@@ -1290,7 +1290,7 @@ static int __init sh_hdmi_probe(struct platform_device *pdev)
 		}
 	}
 
-	hdmi = kzalloc(sizeof(*hdmi), GFP_KERNEL);
+	hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
 	if (!hdmi) {
 		dev_err(&pdev->dev, "Cannot allocate device data\n");
 		return -ENOMEM;
@@ -1304,7 +1304,7 @@ static int __init sh_hdmi_probe(struct platform_device *pdev)
 	if (IS_ERR(hdmi->hdmi_clk)) {
 		ret = PTR_ERR(hdmi->hdmi_clk);
 		dev_err(&pdev->dev, "Unable to get clock: %d\n", ret);
-		goto egetclk;
+		return ret;
 	}
 
 	/* select register access functions */
@@ -1407,8 +1407,6 @@ ereqreg:
 	clk_disable(hdmi->hdmi_clk);
 erate:
 	clk_put(hdmi->hdmi_clk);
-egetclk:
-	kfree(hdmi);
 
 	return ret;
 }
@@ -1433,7 +1431,6 @@ static int __exit sh_hdmi_remove(struct platform_device *pdev)
 		iounmap(hdmi->htop1);
 	iounmap(hdmi->base);
 	release_mem_region(res->start, resource_size(res));
-	kfree(hdmi);
 
 	return 0;
 }
-- 
cgit 


From c5136a033fbbb4c452fcc7fcfe6c912cda03c762 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 3 Oct 2013 11:46:31 +0200
Subject: video: amba-clcd: Remove unnecessary amba_set_drvdata()

Driver core clears the driver data to NULL after device_release
or on probe failure, so just remove it from here.

Driver core change:
"device-core: Ensure drvdata = NULL when no driver is bound"
(sha1: 0998d0631001288a5974afc0b2a5f568bcdecb4d)

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/amba-clcd.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/video/amba-clcd.c b/drivers/video/amba-clcd.c
index b7aa68b3eeff..0f6c61491f74 100644
--- a/drivers/video/amba-clcd.c
+++ b/drivers/video/amba-clcd.c
@@ -594,8 +594,6 @@ static int clcdfb_remove(struct amba_device *dev)
 {
 	struct clcd_fb *fb = amba_get_drvdata(dev);
 
-	amba_set_drvdata(dev, NULL);
-
 	clcdfb_disable(fb);
 	unregister_framebuffer(&fb->fb);
 	if (fb->fb.cmap.len)
-- 
cgit 


From d71f8cdfdb745084bba33d73c476fb0008c8053c Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 14:15:31 +0530
Subject: video: ssd1307fb: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/ssd1307fb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/ssd1307fb.c b/drivers/video/ssd1307fb.c
index 44967c8fef2b..f4daa59f0a80 100644
--- a/drivers/video/ssd1307fb.c
+++ b/drivers/video/ssd1307fb.c
@@ -569,7 +569,7 @@ static struct i2c_driver ssd1307fb_driver = {
 	.id_table = ssd1307fb_i2c_id,
 	.driver = {
 		.name = "ssd1307fb",
-		.of_match_table = of_match_ptr(ssd1307fb_of_match),
+		.of_match_table = ssd1307fb_of_match,
 		.owner = THIS_MODULE,
 	},
 };
-- 
cgit 


From a17016f0a69e3752a60588ddc151ebac13e04116 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 14:15:32 +0530
Subject: video: wm8505fb: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Ed Spiridonov <edo.rus@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/wm8505fb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/wm8505fb.c b/drivers/video/wm8505fb.c
index 3072f30cad19..2bf618037b13 100644
--- a/drivers/video/wm8505fb.c
+++ b/drivers/video/wm8505fb.c
@@ -411,7 +411,7 @@ static struct platform_driver wm8505fb_driver = {
 	.driver		= {
 		.owner	= THIS_MODULE,
 		.name	= DRIVER_NAME,
-		.of_match_table = of_match_ptr(wmt_dt_ids),
+		.of_match_table = wmt_dt_ids,
 	},
 };
 
-- 
cgit 


From 421ee4eafc2fbd1394d40c8c36da122cc08687f5 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 14:15:33 +0530
Subject: video: wmt_ge_rops: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Alexey Charkov <alchark@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/wmt_ge_rops.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/wmt_ge_rops.c b/drivers/video/wmt_ge_rops.c
index 4aaeb18223bc..d4ef841f5a14 100644
--- a/drivers/video/wmt_ge_rops.c
+++ b/drivers/video/wmt_ge_rops.c
@@ -169,7 +169,7 @@ static struct platform_driver wmt_ge_rops_driver = {
 	.driver		= {
 		.owner	= THIS_MODULE,
 		.name	= "wmt_ge_rops",
-		.of_match_table = of_match_ptr(wmt_dt_ids),
+		.of_match_table = wmt_dt_ids,
 	},
 };
 
-- 
cgit 


From 6c666b4188b57afb8b8c14d3bb59d02fc0485b29 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 14:20:20 +0530
Subject: video: wmt_ge_rops: Fix a trivial typo

Add a missing closing brace for email address.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Alexey Charkov <alchark@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/wmt_ge_rops.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/wmt_ge_rops.c b/drivers/video/wmt_ge_rops.c
index d4ef841f5a14..b0a9f34b2e01 100644
--- a/drivers/video/wmt_ge_rops.c
+++ b/drivers/video/wmt_ge_rops.c
@@ -175,7 +175,7 @@ static struct platform_driver wmt_ge_rops_driver = {
 
 module_platform_driver(wmt_ge_rops_driver);
 
-MODULE_AUTHOR("Alexey Charkov <alchark@gmail.com");
+MODULE_AUTHOR("Alexey Charkov <alchark@gmail.com>");
 MODULE_DESCRIPTION("Accelerators for raster operations using "
 		   "WonderMedia Graphics Engine");
 MODULE_LICENSE("GPL v2");
-- 
cgit 


From 9f192a92286c41c32b0929e60ac7136baa5bd2a8 Mon Sep 17 00:00:00 2001
From: Tom Gundersen <teg@jklm.no>
Date: Sat, 7 Sep 2013 16:08:35 +0200
Subject: simplefb: print some info about the registered fb

This is similar to the output printed by efifb.

Signed-off-by: Tom Gundersen <teg@jklm.no>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Cc: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/simplefb.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/video/simplefb.c b/drivers/video/simplefb.c
index ad46d2dd55a2..08c764cfeff3 100644
--- a/drivers/video/simplefb.c
+++ b/drivers/video/simplefb.c
@@ -220,6 +220,14 @@ static int simplefb_probe(struct platform_device *pdev)
 	}
 	info->pseudo_palette = (void *)(info + 1);
 
+	dev_info(&pdev->dev, "framebuffer at 0x%lx, 0x%x bytes, mapped to 0x%p\n",
+			     info->fix.smem_start, info->fix.smem_len,
+			     info->screen_base);
+	dev_info(&pdev->dev, "format=%s, mode=%dx%dx%d, linelength=%d\n",
+			     params.format->name,
+			     info->var.xres, info->var.yres,
+			     info->var.bits_per_pixel, info->fix.line_length);
+
 	ret = register_framebuffer(info);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Unable to register simplefb: %d\n", ret);
-- 
cgit 


From f382d9eb82cac42b5d162cb498cd41245dfafb42 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Tue, 6 Aug 2013 14:56:55 +0530
Subject: omapdss: HDMI: create a Wrapper library

HDMI wrapper is a block common to DSS in OMAP4, OMAP5 and DRA7x. Move the
existing functions from ti_hdmi_4xxx_ip.c to a separate file. These funcs are
called directly from the hdmi driver rather than hdmi_ip_ops funtion pointer
calls.

Add new wrapper funcs which can be used by other hdmi libraries like core, pll
and phy. Move some of the enums, structs and funcs related to the wrapper from
ti_hdmi_4xxx_ip.h to ti_hdmi.h. These will be shared amongst the omap4/5 hdmi
platform drivers and other libraries.

The old hdmi_wp_init() is removed since it didn't do anything. Timing parameters
like interlace, hsync_level and vsync_level weren't copied correctly before.
Those are copied correctly now.

The DT/hwmod information for hdmi doesn't split the address space according to
the required sub blocks. Keep the address offset and size information in the
driver for now. This will be removed when the driver gets the information
correctly from DT/hwmod.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/Makefile          |   2 +-
 drivers/video/omap2/dss/dss_features.c    |   5 -
 drivers/video/omap2/dss/hdmi.c            |  26 +--
 drivers/video/omap2/dss/hdmi_wp.c         | 302 +++++++++++++++++++++++++++++
 drivers/video/omap2/dss/ti_hdmi.h         | 131 +++++++++++--
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | 308 +++++-------------------------
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h |  85 ---------
 7 files changed, 479 insertions(+), 380 deletions(-)
 create mode 100644 drivers/video/omap2/dss/hdmi_wp.c

diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile
index 94832eb06a3d..56ce6bd36905 100644
--- a/drivers/video/omap2/dss/Makefile
+++ b/drivers/video/omap2/dss/Makefile
@@ -10,5 +10,5 @@ omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o
 omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o
 omapdss-$(CONFIG_OMAP2_DSS_SDI) += sdi.o
 omapdss-$(CONFIG_OMAP2_DSS_DSI) += dsi.o
-omapdss-$(CONFIG_OMAP4_DSS_HDMI) += hdmi.o ti_hdmi_4xxx_ip.o
+omapdss-$(CONFIG_OMAP4_DSS_HDMI) += hdmi.o hdmi_wp.o ti_hdmi_4xxx_ip.o
 ccflags-$(CONFIG_OMAP2_DSS_DEBUG) += -DDEBUG
diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index b9cfebb378a2..db359e8df503 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -799,15 +799,10 @@ static const struct ti_hdmi_ip_ops omap4_hdmi_functions = {
 	.read_edid		=	ti_hdmi_4xxx_read_edid,
 	.pll_enable		=	ti_hdmi_4xxx_pll_enable,
 	.pll_disable		=	ti_hdmi_4xxx_pll_disable,
-	.video_enable		=	ti_hdmi_4xxx_wp_video_start,
-	.video_disable		=	ti_hdmi_4xxx_wp_video_stop,
-	.dump_wrapper		=	ti_hdmi_4xxx_wp_dump,
 	.dump_core		=	ti_hdmi_4xxx_core_dump,
 	.dump_pll		=	ti_hdmi_4xxx_pll_dump,
 	.dump_phy		=	ti_hdmi_4xxx_phy_dump,
 #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-	.audio_enable		=       ti_hdmi_4xxx_wp_audio_enable,
-	.audio_disable		=       ti_hdmi_4xxx_wp_audio_disable,
 	.audio_start		=       ti_hdmi_4xxx_audio_start,
 	.audio_stop		=       ti_hdmi_4xxx_audio_stop,
 	.audio_config		=	ti_hdmi_4xxx_audio_config,
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 82a964074993..f2475fc1b632 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -40,7 +40,6 @@
 #include "dss.h"
 #include "dss_features.h"
 
-#define HDMI_WP			0x0
 #define HDMI_CORE_SYS		0x400
 #define HDMI_CORE_AV		0x900
 #define HDMI_PLLCTRL		0x200
@@ -529,7 +528,7 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev)
 
 	hdmi_compute_pll(dssdev, phy, &hdmi.ip_data.pll_data);
 
-	hdmi.ip_data.ops->video_disable(&hdmi.ip_data);
+	hdmi_wp_video_stop(&hdmi.ip_data.wp);
 
 	/* config the PLL and PHY hdmi_set_pll_pwrfirst */
 	r = hdmi.ip_data.ops->pll_enable(&hdmi.ip_data);
@@ -552,7 +551,7 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev)
 	/* tv size */
 	dss_mgr_set_timings(mgr, p);
 
-	r = hdmi.ip_data.ops->video_enable(&hdmi.ip_data);
+	r = hdmi_wp_video_start(&hdmi.ip_data.wp);
 	if (r)
 		goto err_vid_enable;
 
@@ -563,7 +562,7 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev)
 	return 0;
 
 err_mgr_enable:
-	hdmi.ip_data.ops->video_disable(&hdmi.ip_data);
+	hdmi_wp_video_stop(&hdmi.ip_data.wp);
 err_vid_enable:
 	hdmi.ip_data.ops->phy_disable(&hdmi.ip_data);
 err_phy_enable:
@@ -579,7 +578,7 @@ static void hdmi_power_off_full(struct omap_dss_device *dssdev)
 
 	dss_mgr_disable(mgr);
 
-	hdmi.ip_data.ops->video_disable(&hdmi.ip_data);
+	hdmi_wp_video_stop(&hdmi.ip_data.wp);
 	hdmi.ip_data.ops->phy_disable(&hdmi.ip_data);
 	hdmi.ip_data.ops->pll_disable(&hdmi.ip_data);
 
@@ -642,7 +641,7 @@ static void hdmi_dump_regs(struct seq_file *s)
 		return;
 	}
 
-	hdmi.ip_data.ops->dump_wrapper(&hdmi.ip_data, s);
+	hdmi_wp_dump(&hdmi.ip_data.wp, s);
 	hdmi.ip_data.ops->dump_pll(&hdmi.ip_data, s);
 	hdmi.ip_data.ops->dump_phy(&hdmi.ip_data, s);
 	hdmi.ip_data.ops->dump_core(&hdmi.ip_data, s);
@@ -946,8 +945,7 @@ static int hdmi_audio_enable(struct omap_dss_device *dssdev)
 		goto err;
 	}
 
-
-	r = hdmi.ip_data.ops->audio_enable(&hdmi.ip_data);
+	r = hdmi_wp_audio_enable(&hdmi.ip_data.wp, true);
 	if (r)
 		goto err;
 
@@ -961,7 +959,7 @@ err:
 
 static void hdmi_audio_disable(struct omap_dss_device *dssdev)
 {
-	hdmi.ip_data.ops->audio_disable(&hdmi.ip_data);
+	hdmi_wp_audio_enable(&hdmi.ip_data.wp, false);
 }
 
 static int hdmi_audio_start(struct omap_dss_device *dssdev)
@@ -1086,7 +1084,6 @@ static void __exit hdmi_uninit_output(struct platform_device *pdev)
 /* HDMI HW IP initialisation */
 static int omapdss_hdmihw_probe(struct platform_device *pdev)
 {
-	struct resource *res;
 	int r;
 
 	hdmi.pdev = pdev;
@@ -1094,12 +1091,9 @@ static int omapdss_hdmihw_probe(struct platform_device *pdev)
 	mutex_init(&hdmi.lock);
 	mutex_init(&hdmi.ip_data.lock);
 
-	res = platform_get_resource(hdmi.pdev, IORESOURCE_MEM, 0);
-
-	/* Base address taken from platform */
-	hdmi.ip_data.base_wp = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(hdmi.ip_data.base_wp))
-		return PTR_ERR(hdmi.ip_data.base_wp);
+	r = hdmi_wp_init(pdev, &hdmi.ip_data.wp);
+	if (r)
+		return r;
 
 	hdmi.ip_data.irq = platform_get_irq(pdev, 0);
 	if (hdmi.ip_data.irq < 0) {
diff --git a/drivers/video/omap2/dss/hdmi_wp.c b/drivers/video/omap2/dss/hdmi_wp.c
new file mode 100644
index 000000000000..1b6dbe1095a7
--- /dev/null
+++ b/drivers/video/omap2/dss/hdmi_wp.c
@@ -0,0 +1,302 @@
+/*
+ * HDMI wrapper
+ *
+ * Copyright (C) 2013 Texas Instruments Incorporated
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <video/omapdss.h>
+
+#include "dss.h"
+#include "ti_hdmi.h"
+#include "ti_hdmi_4xxx_ip.h"
+
+static inline void hdmi_write_reg(void __iomem *base_addr, const u16 idx,
+		u32 val)
+{
+	__raw_writel(val, base_addr + idx);
+}
+
+static inline u32 hdmi_read_reg(void __iomem *base_addr, const u16 idx)
+{
+	return __raw_readl(base_addr + idx);
+}
+
+#define REG_FLD_MOD(base, idx, val, start, end) \
+	hdmi_write_reg(base, idx, FLD_MOD(hdmi_read_reg(base, idx),\
+							val, start, end))
+#define REG_GET(base, idx, start, end) \
+	FLD_GET(hdmi_read_reg(base, idx), start, end)
+
+static inline int hdmi_wait_for_bit_change(void __iomem *base_addr,
+		const u16 idx, int b2, int b1, u32 val)
+{
+	u32 t = 0;
+	while (val != REG_GET(base_addr, idx, b2, b1)) {
+		udelay(1);
+		if (t++ > 10000)
+			return !val;
+	}
+	return val;
+}
+
+void hdmi_wp_dump(struct hdmi_wp_data *wp, struct seq_file *s)
+{
+#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, hdmi_read_reg(wp->base, r))
+
+	DUMPREG(HDMI_WP_REVISION);
+	DUMPREG(HDMI_WP_SYSCONFIG);
+	DUMPREG(HDMI_WP_IRQSTATUS_RAW);
+	DUMPREG(HDMI_WP_IRQSTATUS);
+	DUMPREG(HDMI_WP_IRQENABLE_SET);
+	DUMPREG(HDMI_WP_IRQENABLE_CLR);
+	DUMPREG(HDMI_WP_IRQWAKEEN);
+	DUMPREG(HDMI_WP_PWR_CTRL);
+	DUMPREG(HDMI_WP_DEBOUNCE);
+	DUMPREG(HDMI_WP_VIDEO_CFG);
+	DUMPREG(HDMI_WP_VIDEO_SIZE);
+	DUMPREG(HDMI_WP_VIDEO_TIMING_H);
+	DUMPREG(HDMI_WP_VIDEO_TIMING_V);
+	DUMPREG(HDMI_WP_WP_CLK);
+	DUMPREG(HDMI_WP_AUDIO_CFG);
+	DUMPREG(HDMI_WP_AUDIO_CFG2);
+	DUMPREG(HDMI_WP_AUDIO_CTRL);
+	DUMPREG(HDMI_WP_AUDIO_DATA);
+}
+
+u32 hdmi_wp_get_irqstatus(struct hdmi_wp_data *wp)
+{
+	return hdmi_read_reg(wp->base, HDMI_WP_IRQSTATUS);
+}
+
+void hdmi_wp_set_irqstatus(struct hdmi_wp_data *wp, u32 irqstatus)
+{
+	hdmi_write_reg(wp->base, HDMI_WP_IRQSTATUS, irqstatus);
+	/* flush posted write */
+	hdmi_read_reg(wp->base, HDMI_WP_IRQSTATUS);
+}
+
+void hdmi_wp_set_irqenable(struct hdmi_wp_data *wp, u32 mask)
+{
+	hdmi_write_reg(wp->base, HDMI_WP_IRQENABLE_SET, mask);
+}
+
+void hdmi_wp_clear_irqenable(struct hdmi_wp_data *wp, u32 mask)
+{
+	hdmi_write_reg(wp->base, HDMI_WP_IRQENABLE_CLR, mask);
+}
+
+/* PHY_PWR_CMD */
+int hdmi_wp_set_phy_pwr(struct hdmi_wp_data *wp, enum hdmi_phy_pwr val)
+{
+	/* Return if already the state */
+	if (REG_GET(wp->base, HDMI_WP_PWR_CTRL, 5, 4) == val)
+		return 0;
+
+	/* Command for power control of HDMI PHY */
+	REG_FLD_MOD(wp->base, HDMI_WP_PWR_CTRL, val, 7, 6);
+
+	/* Status of the power control of HDMI PHY */
+	if (hdmi_wait_for_bit_change(wp->base, HDMI_WP_PWR_CTRL, 5, 4, val)
+			!= val) {
+		pr_err("Failed to set PHY power mode to %d\n", val);
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+/* PLL_PWR_CMD */
+int hdmi_wp_set_pll_pwr(struct hdmi_wp_data *wp, enum hdmi_pll_pwr val)
+{
+	/* Command for power control of HDMI PLL */
+	REG_FLD_MOD(wp->base, HDMI_WP_PWR_CTRL, val, 3, 2);
+
+	/* wait till PHY_PWR_STATUS is set */
+	if (hdmi_wait_for_bit_change(wp->base, HDMI_WP_PWR_CTRL, 1, 0, val)
+			!= val) {
+		pr_err("Failed to set PLL_PWR_STATUS\n");
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+int hdmi_wp_video_start(struct hdmi_wp_data *wp)
+{
+	REG_FLD_MOD(wp->base, HDMI_WP_VIDEO_CFG, true, 31, 31);
+
+	return 0;
+}
+
+void hdmi_wp_video_stop(struct hdmi_wp_data *wp)
+{
+	REG_FLD_MOD(wp->base, HDMI_WP_VIDEO_CFG, false, 31, 31);
+}
+
+void hdmi_wp_video_config_format(struct hdmi_wp_data *wp,
+		struct hdmi_video_format *video_fmt)
+{
+	u32 l = 0;
+
+	REG_FLD_MOD(wp->base, HDMI_WP_VIDEO_CFG, video_fmt->packing_mode,
+		10, 8);
+
+	l |= FLD_VAL(video_fmt->y_res, 31, 16);
+	l |= FLD_VAL(video_fmt->x_res, 15, 0);
+	hdmi_write_reg(wp->base, HDMI_WP_VIDEO_SIZE, l);
+}
+
+void hdmi_wp_video_config_interface(struct hdmi_wp_data *wp,
+		struct omap_video_timings *timings)
+{
+	u32 r;
+	bool vsync_pol, hsync_pol;
+	pr_debug("Enter hdmi_wp_video_config_interface\n");
+
+	vsync_pol = timings->vsync_level == OMAPDSS_SIG_ACTIVE_HIGH;
+	hsync_pol = timings->hsync_level == OMAPDSS_SIG_ACTIVE_HIGH;
+
+	r = hdmi_read_reg(wp->base, HDMI_WP_VIDEO_CFG);
+	r = FLD_MOD(r, vsync_pol, 7, 7);
+	r = FLD_MOD(r, hsync_pol, 6, 6);
+	r = FLD_MOD(r, timings->interlace, 3, 3);
+	r = FLD_MOD(r, 1, 1, 0); /* HDMI_TIMING_MASTER_24BIT */
+	hdmi_write_reg(wp->base, HDMI_WP_VIDEO_CFG, r);
+}
+
+void hdmi_wp_video_config_timing(struct hdmi_wp_data *wp,
+		struct omap_video_timings *timings)
+{
+	u32 timing_h = 0;
+	u32 timing_v = 0;
+
+	pr_debug("Enter hdmi_wp_video_config_timing\n");
+
+	timing_h |= FLD_VAL(timings->hbp, 31, 20);
+	timing_h |= FLD_VAL(timings->hfp, 19, 8);
+	timing_h |= FLD_VAL(timings->hsw, 7, 0);
+	hdmi_write_reg(wp->base, HDMI_WP_VIDEO_TIMING_H, timing_h);
+
+	timing_v |= FLD_VAL(timings->vbp, 31, 20);
+	timing_v |= FLD_VAL(timings->vfp, 19, 8);
+	timing_v |= FLD_VAL(timings->vsw, 7, 0);
+	hdmi_write_reg(wp->base, HDMI_WP_VIDEO_TIMING_V, timing_v);
+}
+
+void hdmi_wp_init_vid_fmt_timings(struct hdmi_video_format *video_fmt,
+		struct omap_video_timings *timings, struct hdmi_config *param)
+{
+	pr_debug("Enter hdmi_wp_video_init_format\n");
+
+	video_fmt->packing_mode = HDMI_PACK_10b_RGB_YUV444;
+	video_fmt->y_res = param->timings.y_res;
+	video_fmt->x_res = param->timings.x_res;
+
+	timings->hbp = param->timings.hbp;
+	timings->hfp = param->timings.hfp;
+	timings->hsw = param->timings.hsw;
+	timings->vbp = param->timings.vbp;
+	timings->vfp = param->timings.vfp;
+	timings->vsw = param->timings.vsw;
+	timings->vsync_level = param->timings.vsync_level;
+	timings->hsync_level = param->timings.hsync_level;
+	timings->interlace = param->timings.interlace;
+}
+
+#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
+void hdmi_wp_audio_config_format(struct hdmi_wp_data *wp,
+		struct hdmi_audio_format *aud_fmt)
+{
+	u32 r;
+
+	DSSDBG("Enter hdmi_wp_audio_config_format\n");
+
+	r = hdmi_read_reg(wp->base, HDMI_WP_AUDIO_CFG);
+	r = FLD_MOD(r, aud_fmt->stereo_channels, 26, 24);
+	r = FLD_MOD(r, aud_fmt->active_chnnls_msk, 23, 16);
+	r = FLD_MOD(r, aud_fmt->en_sig_blk_strt_end, 5, 5);
+	r = FLD_MOD(r, aud_fmt->type, 4, 4);
+	r = FLD_MOD(r, aud_fmt->justification, 3, 3);
+	r = FLD_MOD(r, aud_fmt->sample_order, 2, 2);
+	r = FLD_MOD(r, aud_fmt->samples_per_word, 1, 1);
+	r = FLD_MOD(r, aud_fmt->sample_size, 0, 0);
+	hdmi_write_reg(wp->base, HDMI_WP_AUDIO_CFG, r);
+}
+
+void hdmi_wp_audio_config_dma(struct hdmi_wp_data *wp,
+		struct hdmi_audio_dma *aud_dma)
+{
+	u32 r;
+
+	DSSDBG("Enter hdmi_wp_audio_config_dma\n");
+
+	r = hdmi_read_reg(wp->base, HDMI_WP_AUDIO_CFG2);
+	r = FLD_MOD(r, aud_dma->transfer_size, 15, 8);
+	r = FLD_MOD(r, aud_dma->block_size, 7, 0);
+	hdmi_write_reg(wp->base, HDMI_WP_AUDIO_CFG2, r);
+
+	r = hdmi_read_reg(wp->base, HDMI_WP_AUDIO_CTRL);
+	r = FLD_MOD(r, aud_dma->mode, 9, 9);
+	r = FLD_MOD(r, aud_dma->fifo_threshold, 8, 0);
+	hdmi_write_reg(wp->base, HDMI_WP_AUDIO_CTRL, r);
+}
+
+int hdmi_wp_audio_enable(struct hdmi_wp_data *wp, bool enable)
+{
+	REG_FLD_MOD(wp->base, HDMI_WP_AUDIO_CTRL, enable, 31, 31);
+
+	return 0;
+}
+
+int hdmi_wp_audio_core_req_enable(struct hdmi_wp_data *wp, bool enable)
+{
+	REG_FLD_MOD(wp->base, HDMI_WP_AUDIO_CTRL, enable, 30, 30);
+
+	return 0;
+}
+#endif
+
+#define WP_SIZE	0x200
+
+int hdmi_wp_init(struct platform_device *pdev, struct hdmi_wp_data *wp)
+{
+	struct resource *res;
+	struct resource temp_res;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hdmi_wp");
+	if (!res) {
+		DSSDBG("can't get WP mem resource by name\n");
+		/*
+		 * if hwmod/DT doesn't have the memory resource information
+		 * split into HDMI sub blocks by name, we try again by getting
+		 * the platform's first resource. this code will be removed when
+		 * the driver can get the mem resources by name
+		 */
+		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+		if (!res) {
+			DSSERR("can't get WP mem resource\n");
+			return -EINVAL;
+		}
+
+		temp_res.start = res->start;
+		temp_res.end = temp_res.start + WP_SIZE - 1;
+		res = &temp_res;
+	}
+
+	wp->base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
+	if (!wp->base) {
+		DSSERR("can't ioremap HDMI WP\n");
+		return -ENOMEM;
+	}
+
+	return 0;
+}
diff --git a/drivers/video/omap2/dss/ti_hdmi.h b/drivers/video/omap2/dss/ti_hdmi.h
index 45215f44617c..d16f28de1272 100644
--- a/drivers/video/omap2/dss/ti_hdmi.h
+++ b/drivers/video/omap2/dss/ti_hdmi.h
@@ -21,6 +21,8 @@
 #ifndef _TI_HDMI_H
 #define _TI_HDMI_H
 
+#include <linux/platform_device.h>
+
 struct hdmi_ip_data;
 
 enum hdmi_pll_pwr {
@@ -30,6 +32,12 @@ enum hdmi_pll_pwr {
 	HDMI_PLLPWRCMD_BOTHON_NOPHYCLK = 3
 };
 
+enum hdmi_phy_pwr {
+	HDMI_PHYPWRCMD_OFF = 0,
+	HDMI_PHYPWRCMD_LDOON = 1,
+	HDMI_PHYPWRCMD_TXON = 2
+};
+
 enum hdmi_core_hdmi_dvi {
 	HDMI_DVI = 0,
 	HDMI_HDMI = 1
@@ -42,11 +50,67 @@ enum hdmi_clk_refsel {
 	HDMI_REFSEL_SYSCLK = 3
 };
 
+enum hdmi_packing_mode {
+	HDMI_PACK_10b_RGB_YUV444 = 0,
+	HDMI_PACK_24b_RGB_YUV444_YUV422 = 1,
+	HDMI_PACK_20b_YUV422 = 2,
+	HDMI_PACK_ALREADYPACKED = 7
+};
+
+enum hdmi_stereo_channels {
+	HDMI_AUDIO_STEREO_NOCHANNELS = 0,
+	HDMI_AUDIO_STEREO_ONECHANNEL = 1,
+	HDMI_AUDIO_STEREO_TWOCHANNELS = 2,
+	HDMI_AUDIO_STEREO_THREECHANNELS = 3,
+	HDMI_AUDIO_STEREO_FOURCHANNELS = 4
+};
+
+enum hdmi_audio_type {
+	HDMI_AUDIO_TYPE_LPCM = 0,
+	HDMI_AUDIO_TYPE_IEC = 1
+};
+
+enum hdmi_audio_justify {
+	HDMI_AUDIO_JUSTIFY_LEFT = 0,
+	HDMI_AUDIO_JUSTIFY_RIGHT = 1
+};
+
+enum hdmi_audio_sample_order {
+	HDMI_AUDIO_SAMPLE_RIGHT_FIRST = 0,
+	HDMI_AUDIO_SAMPLE_LEFT_FIRST = 1
+};
+
+enum hdmi_audio_samples_perword {
+	HDMI_AUDIO_ONEWORD_ONESAMPLE = 0,
+	HDMI_AUDIO_ONEWORD_TWOSAMPLES = 1
+};
+
+enum hdmi_audio_sample_size {
+	HDMI_AUDIO_SAMPLE_16BITS = 0,
+	HDMI_AUDIO_SAMPLE_24BITS = 1
+};
+
+enum hdmi_audio_transf_mode {
+	HDMI_AUDIO_TRANSF_DMA = 0,
+	HDMI_AUDIO_TRANSF_IRQ = 1
+};
+
+enum hdmi_audio_blk_strt_end_sig {
+	HDMI_AUDIO_BLOCK_SIG_STARTEND_ON = 0,
+	HDMI_AUDIO_BLOCK_SIG_STARTEND_OFF = 1
+};
+
 struct hdmi_cm {
 	int	code;
 	int	mode;
 };
 
+struct hdmi_video_format {
+	enum hdmi_packing_mode	packing_mode;
+	u32			y_res;	/* Line per panel */
+	u32			x_res;	/* pixel per line */
+};
+
 struct hdmi_config {
 	struct omap_video_timings timings;
 	struct hdmi_cm cm;
@@ -63,6 +127,24 @@ struct hdmi_pll_info {
 	enum hdmi_clk_refsel refsel;
 };
 
+struct hdmi_audio_format {
+	enum hdmi_stereo_channels		stereo_channels;
+	u8					active_chnnls_msk;
+	enum hdmi_audio_type			type;
+	enum hdmi_audio_justify			justification;
+	enum hdmi_audio_sample_order		sample_order;
+	enum hdmi_audio_samples_perword		samples_per_word;
+	enum hdmi_audio_sample_size		sample_size;
+	enum hdmi_audio_blk_strt_end_sig	en_sig_blk_strt_end;
+};
+
+struct hdmi_audio_dma {
+	u8				transfer_size;
+	u8				block_size;
+	enum hdmi_audio_transf_mode	mode;
+	u16				fifo_threshold;
+};
+
 struct ti_hdmi_ip_ops {
 
 	void (*video_configure)(struct hdmi_ip_data *ip_data);
@@ -77,12 +159,6 @@ struct ti_hdmi_ip_ops {
 
 	void (*pll_disable)(struct hdmi_ip_data *ip_data);
 
-	int (*video_enable)(struct hdmi_ip_data *ip_data);
-
-	void (*video_disable)(struct hdmi_ip_data *ip_data);
-
-	void (*dump_wrapper)(struct hdmi_ip_data *ip_data, struct seq_file *s);
-
 	void (*dump_core)(struct hdmi_ip_data *ip_data, struct seq_file *s);
 
 	void (*dump_pll)(struct hdmi_ip_data *ip_data, struct seq_file *s);
@@ -90,10 +166,6 @@ struct ti_hdmi_ip_ops {
 	void (*dump_phy)(struct hdmi_ip_data *ip_data, struct seq_file *s);
 
 #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-	int (*audio_enable)(struct hdmi_ip_data *ip_data);
-
-	void (*audio_disable)(struct hdmi_ip_data *ip_data);
-
 	int (*audio_start)(struct hdmi_ip_data *ip_data);
 
 	void (*audio_stop)(struct hdmi_ip_data *ip_data);
@@ -147,8 +219,13 @@ struct hdmi_core_infoframe_avi {
 	u16	db12_13_pixel_sofright;
 };
 
+struct hdmi_wp_data {
+	void __iomem *base;
+};
+
 struct hdmi_ip_data {
-	void __iomem	*base_wp;	/* HDMI wrapper */
+	struct hdmi_wp_data	wp;
+
 	unsigned long	core_sys_offset;
 	unsigned long	core_av_offset;
 	unsigned long	pll_offset;
@@ -162,22 +239,44 @@ struct hdmi_ip_data {
 	/* ti_hdmi_4xxx_ip private data. These should be in a separate struct */
 	struct mutex lock;
 };
+
+/* HDMI wrapper funcs */
+int hdmi_wp_video_start(struct hdmi_wp_data *wp);
+void hdmi_wp_video_stop(struct hdmi_wp_data *wp);
+void hdmi_wp_dump(struct hdmi_wp_data *wp, struct seq_file *s);
+u32 hdmi_wp_get_irqstatus(struct hdmi_wp_data *wp);
+void hdmi_wp_set_irqstatus(struct hdmi_wp_data *wp, u32 irqstatus);
+void hdmi_wp_set_irqenable(struct hdmi_wp_data *wp, u32 mask);
+void hdmi_wp_clear_irqenable(struct hdmi_wp_data *wp, u32 mask);
+int hdmi_wp_set_phy_pwr(struct hdmi_wp_data *wp, enum hdmi_phy_pwr val);
+int hdmi_wp_set_pll_pwr(struct hdmi_wp_data *wp, enum hdmi_pll_pwr val);
+void hdmi_wp_video_config_format(struct hdmi_wp_data *wp,
+		struct hdmi_video_format *video_fmt);
+void hdmi_wp_video_config_interface(struct hdmi_wp_data *wp,
+		struct omap_video_timings *timings);
+void hdmi_wp_video_config_timing(struct hdmi_wp_data *wp,
+		struct omap_video_timings *timings);
+void hdmi_wp_init_vid_fmt_timings(struct hdmi_video_format *video_fmt,
+		struct omap_video_timings *timings, struct hdmi_config *param);
+int hdmi_wp_init(struct platform_device *pdev, struct hdmi_wp_data *wp);
+
 int ti_hdmi_4xxx_phy_enable(struct hdmi_ip_data *ip_data);
 void ti_hdmi_4xxx_phy_disable(struct hdmi_ip_data *ip_data);
 int ti_hdmi_4xxx_read_edid(struct hdmi_ip_data *ip_data, u8 *edid, int len);
-int ti_hdmi_4xxx_wp_video_start(struct hdmi_ip_data *ip_data);
-void ti_hdmi_4xxx_wp_video_stop(struct hdmi_ip_data *ip_data);
 int ti_hdmi_4xxx_pll_enable(struct hdmi_ip_data *ip_data);
 void ti_hdmi_4xxx_pll_disable(struct hdmi_ip_data *ip_data);
 void ti_hdmi_4xxx_basic_configure(struct hdmi_ip_data *ip_data);
-void ti_hdmi_4xxx_wp_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
 void ti_hdmi_4xxx_pll_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
 void ti_hdmi_4xxx_core_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
 void ti_hdmi_4xxx_phy_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
 #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
 int hdmi_compute_acr(u32 sample_freq, u32 *n, u32 *cts);
-int ti_hdmi_4xxx_wp_audio_enable(struct hdmi_ip_data *ip_data);
-void ti_hdmi_4xxx_wp_audio_disable(struct hdmi_ip_data *ip_data);
+int hdmi_wp_audio_enable(struct hdmi_wp_data *wp, bool enable);
+int hdmi_wp_audio_core_req_enable(struct hdmi_wp_data *wp, bool enable);
+void hdmi_wp_audio_config_format(struct hdmi_wp_data *wp,
+		struct hdmi_audio_format *aud_fmt);
+void hdmi_wp_audio_config_dma(struct hdmi_wp_data *wp,
+		struct hdmi_audio_dma *aud_dma);
 int ti_hdmi_4xxx_audio_start(struct hdmi_ip_data *ip_data);
 void ti_hdmi_4xxx_audio_stop(struct hdmi_ip_data *ip_data);
 int ti_hdmi_4xxx_audio_config(struct hdmi_ip_data *ip_data,
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
index fd4172b41c46..d4b8883ecac0 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
@@ -52,43 +52,44 @@ static inline u32 hdmi_read_reg(void __iomem *base_addr,
 	return __raw_readl(base_addr + idx);
 }
 
-static inline void __iomem *hdmi_wp_base(struct hdmi_ip_data *ip_data)
+#define REG_FLD_MOD(base, idx, val, start, end) \
+	hdmi_write_reg(base, idx, FLD_MOD(hdmi_read_reg(base, idx),\
+							val, start, end))
+#define REG_GET(base, idx, start, end) \
+	FLD_GET(hdmi_read_reg(base, idx), start, end)
+
+static inline int hdmi_wait_for_bit_change(void __iomem *base_addr,
+		const u16 idx, int b2, int b1, u32 val)
 {
-	return ip_data->base_wp;
+	u32 t = 0;
+	while (val != REG_GET(base_addr, idx, b2, b1)) {
+		udelay(1);
+		if (t++ > 10000)
+			return !val;
+	}
+	return val;
 }
 
 static inline void __iomem *hdmi_phy_base(struct hdmi_ip_data *ip_data)
 {
-	return ip_data->base_wp + ip_data->phy_offset;
+	return ip_data->wp.base + ip_data->phy_offset;
 }
 
 static inline void __iomem *hdmi_pll_base(struct hdmi_ip_data *ip_data)
 {
-	return ip_data->base_wp + ip_data->pll_offset;
+	return ip_data->wp.base + ip_data->pll_offset;
 }
 
 static inline void __iomem *hdmi_av_base(struct hdmi_ip_data *ip_data)
 {
-	return ip_data->base_wp + ip_data->core_av_offset;
+	return ip_data->wp.base + ip_data->core_av_offset;
 }
 
 static inline void __iomem *hdmi_core_sys_base(struct hdmi_ip_data *ip_data)
 {
-	return ip_data->base_wp + ip_data->core_sys_offset;
+	return ip_data->wp.base + ip_data->core_sys_offset;
 }
 
-static inline int hdmi_wait_for_bit_change(void __iomem *base_addr,
-				const u16 idx,
-				int b2, int b1, u32 val)
-{
-	u32 t = 0;
-	while (val != REG_GET(base_addr, idx, b2, b1)) {
-		udelay(1);
-		if (t++ > 10000)
-			return !val;
-	}
-	return val;
-}
 
 static int hdmi_pll_init(struct hdmi_ip_data *ip_data)
 {
@@ -156,41 +157,6 @@ static int hdmi_pll_init(struct hdmi_ip_data *ip_data)
 	return 0;
 }
 
-/* PHY_PWR_CMD */
-static int hdmi_set_phy_pwr(struct hdmi_ip_data *ip_data, enum hdmi_phy_pwr val)
-{
-	/* Return if already the state */
-	if (REG_GET(hdmi_wp_base(ip_data), HDMI_WP_PWR_CTRL, 5, 4) == val)
-		return 0;
-
-	/* Command for power control of HDMI PHY */
-	REG_FLD_MOD(hdmi_wp_base(ip_data), HDMI_WP_PWR_CTRL, val, 7, 6);
-
-	/* Status of the power control of HDMI PHY */
-	if (hdmi_wait_for_bit_change(hdmi_wp_base(ip_data),
-				HDMI_WP_PWR_CTRL, 5, 4, val) != val) {
-		pr_err("Failed to set PHY power mode to %d\n", val);
-		return -ETIMEDOUT;
-	}
-
-	return 0;
-}
-
-/* PLL_PWR_CMD */
-static int hdmi_set_pll_pwr(struct hdmi_ip_data *ip_data, enum hdmi_pll_pwr val)
-{
-	/* Command for power control of HDMI PLL */
-	REG_FLD_MOD(hdmi_wp_base(ip_data), HDMI_WP_PWR_CTRL, val, 3, 2);
-
-	/* wait till PHY_PWR_STATUS is set */
-	if (hdmi_wait_for_bit_change(hdmi_wp_base(ip_data), HDMI_WP_PWR_CTRL,
-						1, 0, val) != val) {
-		pr_err("Failed to set PLL_PWR_STATUS\n");
-		return -ETIMEDOUT;
-	}
-
-	return 0;
-}
 
 static int hdmi_pll_reset(struct hdmi_ip_data *ip_data)
 {
@@ -211,11 +177,11 @@ int ti_hdmi_4xxx_pll_enable(struct hdmi_ip_data *ip_data)
 {
 	u16 r = 0;
 
-	r = hdmi_set_pll_pwr(ip_data, HDMI_PLLPWRCMD_ALLOFF);
+	r = hdmi_wp_set_pll_pwr(&ip_data->wp, HDMI_PLLPWRCMD_ALLOFF);
 	if (r)
 		return r;
 
-	r = hdmi_set_pll_pwr(ip_data, HDMI_PLLPWRCMD_BOTHON_ALLCLKS);
+	r = hdmi_wp_set_pll_pwr(&ip_data->wp, HDMI_PLLPWRCMD_BOTHON_ALLCLKS);
 	if (r)
 		return r;
 
@@ -232,19 +198,16 @@ int ti_hdmi_4xxx_pll_enable(struct hdmi_ip_data *ip_data)
 
 void ti_hdmi_4xxx_pll_disable(struct hdmi_ip_data *ip_data)
 {
-	hdmi_set_pll_pwr(ip_data, HDMI_PLLPWRCMD_ALLOFF);
+	hdmi_wp_set_pll_pwr(&ip_data->wp, HDMI_PLLPWRCMD_ALLOFF);
 }
 
 static irqreturn_t hdmi_irq_handler(int irq, void *data)
 {
 	struct hdmi_ip_data *ip_data = data;
-	void __iomem *wp_base = hdmi_wp_base(ip_data);
 	u32 irqstatus;
 
-	irqstatus = hdmi_read_reg(wp_base, HDMI_WP_IRQSTATUS);
-	hdmi_write_reg(wp_base, HDMI_WP_IRQSTATUS, irqstatus);
-	/* flush posted write */
-	hdmi_read_reg(wp_base, HDMI_WP_IRQSTATUS);
+	irqstatus = hdmi_wp_get_irqstatus(&ip_data->wp);
+	hdmi_wp_set_irqstatus(&ip_data->wp, irqstatus);
 
 	if ((irqstatus & HDMI_IRQ_LINK_CONNECT) &&
 			irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
@@ -254,18 +217,16 @@ static irqreturn_t hdmi_irq_handler(int irq, void *data)
 		 * raises connect interrupt if a cable is connected, or nothing
 		 * if cable is not connected.
 		 */
-		hdmi_set_phy_pwr(ip_data, HDMI_PHYPWRCMD_OFF);
+		hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_OFF);
 
-		hdmi_write_reg(wp_base, HDMI_WP_IRQSTATUS,
-			HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT);
-		/* flush posted write */
-		hdmi_read_reg(wp_base, HDMI_WP_IRQSTATUS);
+		hdmi_wp_set_irqstatus(&ip_data->wp, HDMI_IRQ_LINK_CONNECT |
+				HDMI_IRQ_LINK_DISCONNECT);
 
-		hdmi_set_phy_pwr(ip_data, HDMI_PHYPWRCMD_LDOON);
+		hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_LDOON);
 	} else if (irqstatus & HDMI_IRQ_LINK_CONNECT) {
-		hdmi_set_phy_pwr(ip_data, HDMI_PHYPWRCMD_TXON);
+		hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_TXON);
 	} else if (irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
-		hdmi_set_phy_pwr(ip_data, HDMI_PHYPWRCMD_LDOON);
+		hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_LDOON);
 	}
 
 	return IRQ_HANDLED;
@@ -274,15 +235,15 @@ static irqreturn_t hdmi_irq_handler(int irq, void *data)
 int ti_hdmi_4xxx_phy_enable(struct hdmi_ip_data *ip_data)
 {
 	u16 r = 0;
+	u32 irqstatus;
 	void __iomem *phy_base = hdmi_phy_base(ip_data);
 
-	hdmi_write_reg(hdmi_wp_base(ip_data), HDMI_WP_IRQENABLE_CLR,
-			0xffffffff);
+	hdmi_wp_clear_irqenable(&ip_data->wp, 0xffffffff);
 
-	hdmi_write_reg(hdmi_wp_base(ip_data), HDMI_WP_IRQSTATUS,
-			HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT);
+	irqstatus = hdmi_wp_get_irqstatus(&ip_data->wp);
+	hdmi_wp_set_irqstatus(&ip_data->wp, irqstatus);
 
-	r = hdmi_set_phy_pwr(ip_data, HDMI_PHYPWRCMD_LDOON);
+	r = hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_LDOON);
 	if (r)
 		return r;
 
@@ -311,12 +272,12 @@ int ti_hdmi_4xxx_phy_enable(struct hdmi_ip_data *ip_data)
 				 IRQF_ONESHOT, "OMAP HDMI", ip_data);
 	if (r) {
 		DSSERR("HDMI IRQ request failed\n");
-		hdmi_set_phy_pwr(ip_data, HDMI_PHYPWRCMD_OFF);
+		hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_OFF);
 		return r;
 	}
 
-	hdmi_write_reg(hdmi_wp_base(ip_data), HDMI_WP_IRQENABLE_SET,
-			HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT);
+	hdmi_wp_set_irqenable(&ip_data->wp,
+		HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT);
 
 	return 0;
 }
@@ -325,7 +286,7 @@ void ti_hdmi_4xxx_phy_disable(struct hdmi_ip_data *ip_data)
 {
 	free_irq(ip_data->irq, ip_data);
 
-	hdmi_set_phy_pwr(ip_data, HDMI_PHYPWRCMD_OFF);
+	hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_OFF);
 }
 
 static int hdmi_core_ddc_init(struct hdmi_ip_data *ip_data)
@@ -679,99 +640,7 @@ static void hdmi_core_av_packet_config(struct hdmi_ip_data *ip_data,
 		(repeat_cfg.generic_pkt_repeat));
 }
 
-static void hdmi_wp_init(struct omap_video_timings *timings,
-			struct hdmi_video_format *video_fmt)
-{
-	pr_debug("Enter hdmi_wp_init\n");
-
-	timings->hbp = 0;
-	timings->hfp = 0;
-	timings->hsw = 0;
-	timings->vbp = 0;
-	timings->vfp = 0;
-	timings->vsw = 0;
-
-	video_fmt->packing_mode = HDMI_PACK_10b_RGB_YUV444;
-	video_fmt->y_res = 0;
-	video_fmt->x_res = 0;
-
-}
-
-int ti_hdmi_4xxx_wp_video_start(struct hdmi_ip_data *ip_data)
-{
-	REG_FLD_MOD(hdmi_wp_base(ip_data), HDMI_WP_VIDEO_CFG, true, 31, 31);
-	return 0;
-}
-
-void ti_hdmi_4xxx_wp_video_stop(struct hdmi_ip_data *ip_data)
-{
-	REG_FLD_MOD(hdmi_wp_base(ip_data), HDMI_WP_VIDEO_CFG, false, 31, 31);
-}
-
-static void hdmi_wp_video_init_format(struct hdmi_video_format *video_fmt,
-	struct omap_video_timings *timings, struct hdmi_config *param)
-{
-	pr_debug("Enter hdmi_wp_video_init_format\n");
-
-	video_fmt->y_res = param->timings.y_res;
-	video_fmt->x_res = param->timings.x_res;
-
-	timings->hbp = param->timings.hbp;
-	timings->hfp = param->timings.hfp;
-	timings->hsw = param->timings.hsw;
-	timings->vbp = param->timings.vbp;
-	timings->vfp = param->timings.vfp;
-	timings->vsw = param->timings.vsw;
-}
-
-static void hdmi_wp_video_config_format(struct hdmi_ip_data *ip_data,
-		struct hdmi_video_format *video_fmt)
-{
-	u32 l = 0;
-
-	REG_FLD_MOD(hdmi_wp_base(ip_data), HDMI_WP_VIDEO_CFG,
-			video_fmt->packing_mode, 10, 8);
-
-	l |= FLD_VAL(video_fmt->y_res, 31, 16);
-	l |= FLD_VAL(video_fmt->x_res, 15, 0);
-	hdmi_write_reg(hdmi_wp_base(ip_data), HDMI_WP_VIDEO_SIZE, l);
-}
-
-static void hdmi_wp_video_config_interface(struct hdmi_ip_data *ip_data)
-{
-	u32 r;
-	bool vsync_pol, hsync_pol;
-	pr_debug("Enter hdmi_wp_video_config_interface\n");
-
-	vsync_pol = ip_data->cfg.timings.vsync_level == OMAPDSS_SIG_ACTIVE_HIGH;
-	hsync_pol = ip_data->cfg.timings.hsync_level == OMAPDSS_SIG_ACTIVE_HIGH;
-
-	r = hdmi_read_reg(hdmi_wp_base(ip_data), HDMI_WP_VIDEO_CFG);
-	r = FLD_MOD(r, vsync_pol, 7, 7);
-	r = FLD_MOD(r, hsync_pol, 6, 6);
-	r = FLD_MOD(r, ip_data->cfg.timings.interlace, 3, 3);
-	r = FLD_MOD(r, 1, 1, 0); /* HDMI_TIMING_MASTER_24BIT */
-	hdmi_write_reg(hdmi_wp_base(ip_data), HDMI_WP_VIDEO_CFG, r);
-}
-
-static void hdmi_wp_video_config_timing(struct hdmi_ip_data *ip_data,
-		struct omap_video_timings *timings)
-{
-	u32 timing_h = 0;
-	u32 timing_v = 0;
-
-	pr_debug("Enter hdmi_wp_video_config_timing\n");
 
-	timing_h |= FLD_VAL(timings->hbp, 31, 20);
-	timing_h |= FLD_VAL(timings->hfp, 19, 8);
-	timing_h |= FLD_VAL(timings->hsw, 7, 0);
-	hdmi_write_reg(hdmi_wp_base(ip_data), HDMI_WP_VIDEO_TIMING_H, timing_h);
-
-	timing_v |= FLD_VAL(timings->vbp, 31, 20);
-	timing_v |= FLD_VAL(timings->vfp, 19, 8);
-	timing_v |= FLD_VAL(timings->vsw, 7, 0);
-	hdmi_write_reg(hdmi_wp_base(ip_data), HDMI_WP_VIDEO_TIMING_V, timing_v);
-}
 
 void ti_hdmi_4xxx_basic_configure(struct hdmi_ip_data *ip_data)
 {
@@ -784,20 +653,18 @@ void ti_hdmi_4xxx_basic_configure(struct hdmi_ip_data *ip_data)
 	struct hdmi_core_packet_enable_repeat repeat_cfg;
 	struct hdmi_config *cfg = &ip_data->cfg;
 
-	hdmi_wp_init(&video_timing, &video_format);
-
 	hdmi_core_init(&v_core_cfg, avi_cfg, &repeat_cfg);
 
-	hdmi_wp_video_init_format(&video_format, &video_timing, cfg);
+	hdmi_wp_init_vid_fmt_timings(&video_format, &video_timing, cfg);
 
-	hdmi_wp_video_config_timing(ip_data, &video_timing);
+	hdmi_wp_video_config_timing(&ip_data->wp, &video_timing);
 
 	/* video config */
 	video_format.packing_mode = HDMI_PACK_24b_RGB_YUV444_YUV422;
 
-	hdmi_wp_video_config_format(ip_data, &video_format);
+	hdmi_wp_video_config_format(&ip_data->wp, &video_format);
 
-	hdmi_wp_video_config_interface(ip_data);
+	hdmi_wp_video_config_interface(&ip_data->wp, &video_timing);
 
 	/*
 	 * configure core video part
@@ -850,31 +717,6 @@ void ti_hdmi_4xxx_basic_configure(struct hdmi_ip_data *ip_data)
 	hdmi_core_av_packet_config(ip_data, repeat_cfg);
 }
 
-void ti_hdmi_4xxx_wp_dump(struct hdmi_ip_data *ip_data, struct seq_file *s)
-{
-#define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r,\
-		hdmi_read_reg(hdmi_wp_base(ip_data), r))
-
-	DUMPREG(HDMI_WP_REVISION);
-	DUMPREG(HDMI_WP_SYSCONFIG);
-	DUMPREG(HDMI_WP_IRQSTATUS_RAW);
-	DUMPREG(HDMI_WP_IRQSTATUS);
-	DUMPREG(HDMI_WP_IRQENABLE_SET);
-	DUMPREG(HDMI_WP_IRQENABLE_CLR);
-	DUMPREG(HDMI_WP_IRQWAKEEN);
-	DUMPREG(HDMI_WP_PWR_CTRL);
-	DUMPREG(HDMI_WP_DEBOUNCE);
-	DUMPREG(HDMI_WP_VIDEO_CFG);
-	DUMPREG(HDMI_WP_VIDEO_SIZE);
-	DUMPREG(HDMI_WP_VIDEO_TIMING_H);
-	DUMPREG(HDMI_WP_VIDEO_TIMING_V);
-	DUMPREG(HDMI_WP_WP_CLK);
-	DUMPREG(HDMI_WP_AUDIO_CFG);
-	DUMPREG(HDMI_WP_AUDIO_CFG2);
-	DUMPREG(HDMI_WP_AUDIO_CTRL);
-	DUMPREG(HDMI_WP_AUDIO_DATA);
-}
-
 void ti_hdmi_4xxx_pll_dump(struct hdmi_ip_data *ip_data, struct seq_file *s)
 {
 #define DUMPPLL(r) seq_printf(s, "%-35s %08x\n", #r,\
@@ -1071,43 +913,6 @@ void ti_hdmi_4xxx_phy_dump(struct hdmi_ip_data *ip_data, struct seq_file *s)
 }
 
 #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-static void ti_hdmi_4xxx_wp_audio_config_format(struct hdmi_ip_data *ip_data,
-					struct hdmi_audio_format *aud_fmt)
-{
-	u32 r;
-
-	DSSDBG("Enter hdmi_wp_audio_config_format\n");
-
-	r = hdmi_read_reg(hdmi_wp_base(ip_data), HDMI_WP_AUDIO_CFG);
-	r = FLD_MOD(r, aud_fmt->stereo_channels, 26, 24);
-	r = FLD_MOD(r, aud_fmt->active_chnnls_msk, 23, 16);
-	r = FLD_MOD(r, aud_fmt->en_sig_blk_strt_end, 5, 5);
-	r = FLD_MOD(r, aud_fmt->type, 4, 4);
-	r = FLD_MOD(r, aud_fmt->justification, 3, 3);
-	r = FLD_MOD(r, aud_fmt->sample_order, 2, 2);
-	r = FLD_MOD(r, aud_fmt->samples_per_word, 1, 1);
-	r = FLD_MOD(r, aud_fmt->sample_size, 0, 0);
-	hdmi_write_reg(hdmi_wp_base(ip_data), HDMI_WP_AUDIO_CFG, r);
-}
-
-static void ti_hdmi_4xxx_wp_audio_config_dma(struct hdmi_ip_data *ip_data,
-					struct hdmi_audio_dma *aud_dma)
-{
-	u32 r;
-
-	DSSDBG("Enter hdmi_wp_audio_config_dma\n");
-
-	r = hdmi_read_reg(hdmi_wp_base(ip_data), HDMI_WP_AUDIO_CFG2);
-	r = FLD_MOD(r, aud_dma->transfer_size, 15, 8);
-	r = FLD_MOD(r, aud_dma->block_size, 7, 0);
-	hdmi_write_reg(hdmi_wp_base(ip_data), HDMI_WP_AUDIO_CFG2, r);
-
-	r = hdmi_read_reg(hdmi_wp_base(ip_data), HDMI_WP_AUDIO_CTRL);
-	r = FLD_MOD(r, aud_dma->mode, 9, 9);
-	r = FLD_MOD(r, aud_dma->fifo_threshold, 8, 0);
-	hdmi_write_reg(hdmi_wp_base(ip_data), HDMI_WP_AUDIO_CTRL, r);
-}
-
 static void ti_hdmi_4xxx_core_audio_config(struct hdmi_ip_data *ip_data,
 					struct hdmi_core_audio_config *cfg)
 {
@@ -1424,8 +1229,8 @@ int ti_hdmi_4xxx_audio_config(struct hdmi_ip_data *ip_data,
 	audio_format.en_sig_blk_strt_end = HDMI_AUDIO_BLOCK_SIG_STARTEND_ON;
 
 	/* configure DMA and audio FIFO format*/
-	ti_hdmi_4xxx_wp_audio_config_dma(ip_data, &audio_dma);
-	ti_hdmi_4xxx_wp_audio_config_format(ip_data, &audio_format);
+	hdmi_wp_audio_config_dma(&ip_data->wp, &audio_dma);
+	hdmi_wp_audio_config_format(&ip_data->wp, &audio_format);
 
 	/* configure the core*/
 	ti_hdmi_4xxx_core_audio_config(ip_data, &core);
@@ -1436,25 +1241,13 @@ int ti_hdmi_4xxx_audio_config(struct hdmi_ip_data *ip_data,
 	return 0;
 }
 
-int ti_hdmi_4xxx_wp_audio_enable(struct hdmi_ip_data *ip_data)
-{
-	REG_FLD_MOD(hdmi_wp_base(ip_data),
-		    HDMI_WP_AUDIO_CTRL, true, 31, 31);
-	return 0;
-}
-
-void ti_hdmi_4xxx_wp_audio_disable(struct hdmi_ip_data *ip_data)
-{
-	REG_FLD_MOD(hdmi_wp_base(ip_data),
-		    HDMI_WP_AUDIO_CTRL, false, 31, 31);
-}
-
 int ti_hdmi_4xxx_audio_start(struct hdmi_ip_data *ip_data)
 {
 	REG_FLD_MOD(hdmi_av_base(ip_data),
 		    HDMI_CORE_AV_AUD_MODE, true, 0, 0);
-	REG_FLD_MOD(hdmi_wp_base(ip_data),
-		    HDMI_WP_AUDIO_CTRL, true, 30, 30);
+
+	hdmi_wp_audio_core_req_enable(&ip_data->wp, true);
+
 	return 0;
 }
 
@@ -1462,8 +1255,8 @@ void ti_hdmi_4xxx_audio_stop(struct hdmi_ip_data *ip_data)
 {
 	REG_FLD_MOD(hdmi_av_base(ip_data),
 		    HDMI_CORE_AV_AUD_MODE, false, 0, 0);
-	REG_FLD_MOD(hdmi_wp_base(ip_data),
-		    HDMI_WP_AUDIO_CTRL, false, 30, 30);
+
+	hdmi_wp_audio_core_req_enable(&ip_data->wp, false);
 }
 
 int ti_hdmi_4xxx_audio_get_dma_port(u32 *offset, u32 *size)
@@ -1474,4 +1267,5 @@ int ti_hdmi_4xxx_audio_get_dma_port(u32 *offset, u32 *size)
 	*size = 4;
 	return 0;
 }
+
 #endif
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
index b25269c64123..dc49713a894b 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
@@ -226,18 +226,6 @@
 #define HDMI_TXPHY_POWER_CTRL			0x8
 #define HDMI_TXPHY_PAD_CFG_CTRL			0xC
 
-#define REG_FLD_MOD(base, idx, val, start, end) \
-	hdmi_write_reg(base, idx, FLD_MOD(hdmi_read_reg(base, idx),\
-							val, start, end))
-#define REG_GET(base, idx, start, end) \
-	FLD_GET(hdmi_read_reg(base, idx), start, end)
-
-enum hdmi_phy_pwr {
-	HDMI_PHYPWRCMD_OFF = 0,
-	HDMI_PHYPWRCMD_LDOON = 1,
-	HDMI_PHYPWRCMD_TXON = 2
-};
-
 enum hdmi_core_inputbus_width {
 	HDMI_INPUT_8BIT = 0,
 	HDMI_INPUT_10BIT = 1,
@@ -328,13 +316,6 @@ enum hdmi_core_infoframe {
 	HDMI_INFOFRAME_AVI_DB5PR_10 = 9,
 };
 
-enum hdmi_packing_mode {
-	HDMI_PACK_10b_RGB_YUV444 = 0,
-	HDMI_PACK_24b_RGB_YUV444_YUV422 = 1,
-	HDMI_PACK_20b_YUV422 = 2,
-	HDMI_PACK_ALREADYPACKED = 7
-};
-
 enum hdmi_core_audio_layout {
 	HDMI_AUDIO_LAYOUT_2CH = 0,
 	HDMI_AUDIO_LAYOUT_8CH = 1
@@ -345,49 +326,6 @@ enum hdmi_core_cts_mode {
 	HDMI_AUDIO_CTS_MODE_SW = 1
 };
 
-enum hdmi_stereo_channels {
-	HDMI_AUDIO_STEREO_NOCHANNELS = 0,
-	HDMI_AUDIO_STEREO_ONECHANNEL = 1,
-	HDMI_AUDIO_STEREO_TWOCHANNELS = 2,
-	HDMI_AUDIO_STEREO_THREECHANNELS = 3,
-	HDMI_AUDIO_STEREO_FOURCHANNELS = 4
-};
-
-enum hdmi_audio_type {
-	HDMI_AUDIO_TYPE_LPCM = 0,
-	HDMI_AUDIO_TYPE_IEC = 1
-};
-
-enum hdmi_audio_justify {
-	HDMI_AUDIO_JUSTIFY_LEFT = 0,
-	HDMI_AUDIO_JUSTIFY_RIGHT = 1
-};
-
-enum hdmi_audio_sample_order {
-	HDMI_AUDIO_SAMPLE_RIGHT_FIRST = 0,
-	HDMI_AUDIO_SAMPLE_LEFT_FIRST = 1
-};
-
-enum hdmi_audio_samples_perword {
-	HDMI_AUDIO_ONEWORD_ONESAMPLE = 0,
-	HDMI_AUDIO_ONEWORD_TWOSAMPLES = 1
-};
-
-enum hdmi_audio_sample_size {
-	HDMI_AUDIO_SAMPLE_16BITS = 0,
-	HDMI_AUDIO_SAMPLE_24BITS = 1
-};
-
-enum hdmi_audio_transf_mode {
-	HDMI_AUDIO_TRANSF_DMA = 0,
-	HDMI_AUDIO_TRANSF_IRQ = 1
-};
-
-enum hdmi_audio_blk_strt_end_sig {
-	HDMI_AUDIO_BLOCK_SIG_STARTEND_ON = 0,
-	HDMI_AUDIO_BLOCK_SIG_STARTEND_OFF = 1
-};
-
 enum hdmi_audio_i2s_config {
 	HDMI_AUDIO_I2S_MSB_SHIFTED_FIRST = 0,
 	HDMI_AUDIO_I2S_LSB_SHIFTED_FIRST = 1,
@@ -434,29 +372,6 @@ struct hdmi_core_packet_enable_repeat {
 	u32	generic_pkt_repeat;
 };
 
-struct hdmi_video_format {
-	enum hdmi_packing_mode	packing_mode;
-	u32			y_res;	/* Line per panel */
-	u32			x_res;	/* pixel per line */
-};
-
-struct hdmi_audio_format {
-	enum hdmi_stereo_channels		stereo_channels;
-	u8					active_chnnls_msk;
-	enum hdmi_audio_type			type;
-	enum hdmi_audio_justify			justification;
-	enum hdmi_audio_sample_order		sample_order;
-	enum hdmi_audio_samples_perword		samples_per_word;
-	enum hdmi_audio_sample_size		sample_size;
-	enum hdmi_audio_blk_strt_end_sig	en_sig_blk_strt_end;
-};
-
-struct hdmi_audio_dma {
-	u8				transfer_size;
-	u8				block_size;
-	enum hdmi_audio_transf_mode	mode;
-	u16				fifo_threshold;
-};
 
 struct hdmi_core_audio_i2s_config {
 	u8 in_length_bits;
-- 
cgit 


From c1577c1ea01732fea5bc18f05a9e005c0dce6261 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Tue, 8 Oct 2013 12:55:26 +0530
Subject: omapdss: HDMI: create a PLL library

HDMI PLL is a block common to DSS in OMAP4, OMAP5 and DRA7x. Move the
existing PLL functions from ti_hdmi_4xxx_ip.c and hdmi.c to a separate file.
These funcs are called directly from the hdmi driver rather than hdmi_ip_ops
function pointer calls.

Add the PLL library function declarations to ti_hdmi.h. These will be shared
amongst the omap4/5 hdmi platform drivers. Remove the PLL function pointer ops
from the ti_hdmi_ip_ops struct. These will be shared amongst the omap4/5 hdmi
platform drivers and other libraries.

The DT/hwmod information for hdmi doesn't split the address space according to
the required sub blocks. Keep the address offset and size information in the
driver for now. This will be removed when the driver gets the information
correctly from DT/hwmod.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/Makefile          |   2 +-
 drivers/video/omap2/dss/dss_features.c    |   3 -
 drivers/video/omap2/dss/hdmi.c            |  65 ++------
 drivers/video/omap2/dss/hdmi_pll.c        | 261 ++++++++++++++++++++++++++++++
 drivers/video/omap2/dss/ti_hdmi.h         |  25 +--
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | 132 ---------------
 6 files changed, 285 insertions(+), 203 deletions(-)
 create mode 100644 drivers/video/omap2/dss/hdmi_pll.c

diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile
index 56ce6bd36905..5ea65d327cfb 100644
--- a/drivers/video/omap2/dss/Makefile
+++ b/drivers/video/omap2/dss/Makefile
@@ -10,5 +10,5 @@ omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o
 omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o
 omapdss-$(CONFIG_OMAP2_DSS_SDI) += sdi.o
 omapdss-$(CONFIG_OMAP2_DSS_DSI) += dsi.o
-omapdss-$(CONFIG_OMAP4_DSS_HDMI) += hdmi.o hdmi_wp.o ti_hdmi_4xxx_ip.o
+omapdss-$(CONFIG_OMAP4_DSS_HDMI) += hdmi.o hdmi_wp.o hdmi_pll.o ti_hdmi_4xxx_ip.o
 ccflags-$(CONFIG_OMAP2_DSS_DEBUG) += -DDEBUG
diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index db359e8df503..9ee92e90caff 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -797,10 +797,7 @@ static const struct ti_hdmi_ip_ops omap4_hdmi_functions = {
 	.phy_enable		=	ti_hdmi_4xxx_phy_enable,
 	.phy_disable		=	ti_hdmi_4xxx_phy_disable,
 	.read_edid		=	ti_hdmi_4xxx_read_edid,
-	.pll_enable		=	ti_hdmi_4xxx_pll_enable,
-	.pll_disable		=	ti_hdmi_4xxx_pll_disable,
 	.dump_core		=	ti_hdmi_4xxx_core_dump,
-	.dump_pll		=	ti_hdmi_4xxx_pll_dump,
 	.dump_phy		=	ti_hdmi_4xxx_phy_dump,
 #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
 	.audio_start		=       ti_hdmi_4xxx_audio_start,
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index f2475fc1b632..f6a2eba244e7 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -42,7 +42,6 @@
 
 #define HDMI_CORE_SYS		0x400
 #define HDMI_CORE_AV		0x900
-#define HDMI_PLLCTRL		0x200
 #define HDMI_PHY		0x300
 
 /* HDMI EDID Length move this */
@@ -53,9 +52,6 @@
 #define EDID_SIZE_BLOCK0_TIMING_DESCRIPTOR	4
 #define EDID_SIZE_BLOCK1_TIMING_DESCRIPTOR	4
 
-#define HDMI_DEFAULT_REGN 16
-#define HDMI_DEFAULT_REGM2 1
-
 static struct {
 	struct mutex lock;
 	struct platform_device *pdev;
@@ -428,52 +424,6 @@ end:	return cm;
 
 }
 
-static void hdmi_compute_pll(struct omap_dss_device *dssdev, int phy,
-		struct hdmi_pll_info *pi)
-{
-	unsigned long clkin, refclk;
-	u32 mf;
-
-	clkin = clk_get_rate(hdmi.sys_clk) / 10000;
-	/*
-	 * Input clock is predivided by N + 1
-	 * out put of which is reference clk
-	 */
-
-	pi->regn = HDMI_DEFAULT_REGN;
-
-	refclk = clkin / pi->regn;
-
-	pi->regm2 = HDMI_DEFAULT_REGM2;
-
-	/*
-	 * multiplier is pixel_clk/ref_clk
-	 * Multiplying by 100 to avoid fractional part removal
-	 */
-	pi->regm = phy * pi->regm2 / refclk;
-
-	/*
-	 * fractional multiplier is remainder of the difference between
-	 * multiplier and actual phy(required pixel clock thus should be
-	 * multiplied by 2^18(262144) divided by the reference clock
-	 */
-	mf = (phy - pi->regm / pi->regm2 * refclk) * 262144;
-	pi->regmf = pi->regm2 * mf / refclk;
-
-	/*
-	 * Dcofreq should be set to 1 if required pixel clock
-	 * is greater than 1000MHz
-	 */
-	pi->dcofreq = phy > 1000 * 100;
-	pi->regsd = ((pi->regm * clkin / 10) / (pi->regn * 250) + 5) / 10;
-
-	/* Set the reference clock to sysclk reference */
-	pi->refsel = HDMI_REFSEL_SYSCLK;
-
-	DSSDBG("M = %d Mf = %d\n", pi->regm, pi->regmf);
-	DSSDBG("range = %d sd = %d\n", pi->dcofreq, pi->regsd);
-}
-
 static int hdmi_power_on_core(struct omap_dss_device *dssdev)
 {
 	int r;
@@ -526,12 +476,12 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev)
 
 	phy = p->pixel_clock;
 
-	hdmi_compute_pll(dssdev, phy, &hdmi.ip_data.pll_data);
+	hdmi_pll_compute(&hdmi.ip_data.pll, clk_get_rate(hdmi.sys_clk), phy);
 
 	hdmi_wp_video_stop(&hdmi.ip_data.wp);
 
 	/* config the PLL and PHY hdmi_set_pll_pwrfirst */
-	r = hdmi.ip_data.ops->pll_enable(&hdmi.ip_data);
+	r = hdmi_pll_enable(&hdmi.ip_data.pll, &hdmi.ip_data.wp);
 	if (r) {
 		DSSDBG("Failed to lock PLL\n");
 		goto err_pll_enable;
@@ -566,7 +516,7 @@ err_mgr_enable:
 err_vid_enable:
 	hdmi.ip_data.ops->phy_disable(&hdmi.ip_data);
 err_phy_enable:
-	hdmi.ip_data.ops->pll_disable(&hdmi.ip_data);
+	hdmi_pll_disable(&hdmi.ip_data.pll, &hdmi.ip_data.wp);
 err_pll_enable:
 	hdmi_power_off_core(dssdev);
 	return -EIO;
@@ -580,7 +530,7 @@ static void hdmi_power_off_full(struct omap_dss_device *dssdev)
 
 	hdmi_wp_video_stop(&hdmi.ip_data.wp);
 	hdmi.ip_data.ops->phy_disable(&hdmi.ip_data);
-	hdmi.ip_data.ops->pll_disable(&hdmi.ip_data);
+	hdmi_pll_disable(&hdmi.ip_data.pll, &hdmi.ip_data.wp);
 
 	hdmi_power_off_core(dssdev);
 }
@@ -642,7 +592,7 @@ static void hdmi_dump_regs(struct seq_file *s)
 	}
 
 	hdmi_wp_dump(&hdmi.ip_data.wp, s);
-	hdmi.ip_data.ops->dump_pll(&hdmi.ip_data, s);
+	hdmi_pll_dump(&hdmi.ip_data.pll, s);
 	hdmi.ip_data.ops->dump_phy(&hdmi.ip_data, s);
 	hdmi.ip_data.ops->dump_core(&hdmi.ip_data, s);
 
@@ -1095,6 +1045,10 @@ static int omapdss_hdmihw_probe(struct platform_device *pdev)
 	if (r)
 		return r;
 
+	r = hdmi_pll_init(pdev, &hdmi.ip_data.pll);
+	if (r)
+		return r;
+
 	hdmi.ip_data.irq = platform_get_irq(pdev, 0);
 	if (hdmi.ip_data.irq < 0) {
 		DSSERR("platform_get_irq failed\n");
@@ -1111,7 +1065,6 @@ static int omapdss_hdmihw_probe(struct platform_device *pdev)
 
 	hdmi.ip_data.core_sys_offset = HDMI_CORE_SYS;
 	hdmi.ip_data.core_av_offset = HDMI_CORE_AV;
-	hdmi.ip_data.pll_offset = HDMI_PLLCTRL;
 	hdmi.ip_data.phy_offset = HDMI_PHY;
 
 	hdmi_init_output(pdev);
diff --git a/drivers/video/omap2/dss/hdmi_pll.c b/drivers/video/omap2/dss/hdmi_pll.c
new file mode 100644
index 000000000000..e12fa6ada58f
--- /dev/null
+++ b/drivers/video/omap2/dss/hdmi_pll.c
@@ -0,0 +1,261 @@
+/*
+ * HDMI PLL
+ *
+ * Copyright (C) 2013 Texas Instruments Incorporated
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <video/omapdss.h>
+
+#include "dss.h"
+#include "ti_hdmi.h"
+#include "ti_hdmi_4xxx_ip.h"
+
+#define HDMI_DEFAULT_REGN 16
+#define HDMI_DEFAULT_REGM2 1
+
+static inline void hdmi_write_reg(void __iomem *base_addr, const u16 idx,
+		u32 val)
+{
+	__raw_writel(val, base_addr + idx);
+}
+
+static inline u32 hdmi_read_reg(void __iomem *base_addr, const u16 idx)
+{
+	return __raw_readl(base_addr + idx);
+}
+
+#define REG_FLD_MOD(base, idx, val, start, end) \
+	hdmi_write_reg(base, idx, FLD_MOD(hdmi_read_reg(base, idx),\
+							val, start, end))
+#define REG_GET(base, idx, start, end) \
+	FLD_GET(hdmi_read_reg(base, idx), start, end)
+
+static inline int hdmi_wait_for_bit_change(void __iomem *base_addr,
+		const u16 idx, int b2, int b1, u32 val)
+{
+	u32 t = 0;
+	while (val != REG_GET(base_addr, idx, b2, b1)) {
+		udelay(1);
+		if (t++ > 10000)
+			return !val;
+	}
+	return val;
+}
+
+void hdmi_pll_dump(struct hdmi_pll_data *pll, struct seq_file *s)
+{
+#define DUMPPLL(r) seq_printf(s, "%-35s %08x\n", #r,\
+		hdmi_read_reg(pll->base, r))
+
+	DUMPPLL(PLLCTRL_PLL_CONTROL);
+	DUMPPLL(PLLCTRL_PLL_STATUS);
+	DUMPPLL(PLLCTRL_PLL_GO);
+	DUMPPLL(PLLCTRL_CFG1);
+	DUMPPLL(PLLCTRL_CFG2);
+	DUMPPLL(PLLCTRL_CFG3);
+	DUMPPLL(PLLCTRL_SSC_CFG1);
+	DUMPPLL(PLLCTRL_SSC_CFG2);
+	DUMPPLL(PLLCTRL_CFG4);
+}
+
+void hdmi_pll_compute(struct hdmi_pll_data *pll, unsigned long clkin, int phy)
+{
+	struct hdmi_pll_info *pi = &pll->info;
+	unsigned long refclk;
+	u32 mf;
+
+	/* use our funky units */
+	clkin /= 10000;
+
+	/*
+	 * Input clock is predivided by N + 1
+	 * out put of which is reference clk
+	 */
+
+	pi->regn = HDMI_DEFAULT_REGN;
+
+	refclk = clkin / pi->regn;
+
+	pi->regm2 = HDMI_DEFAULT_REGM2;
+
+	/*
+	 * multiplier is pixel_clk/ref_clk
+	 * Multiplying by 100 to avoid fractional part removal
+	 */
+	pi->regm = phy * pi->regm2 / refclk;
+
+	/*
+	 * fractional multiplier is remainder of the difference between
+	 * multiplier and actual phy(required pixel clock thus should be
+	 * multiplied by 2^18(262144) divided by the reference clock
+	 */
+	mf = (phy - pi->regm / pi->regm2 * refclk) * 262144;
+	pi->regmf = pi->regm2 * mf / refclk;
+
+	/*
+	 * Dcofreq should be set to 1 if required pixel clock
+	 * is greater than 1000MHz
+	 */
+	pi->dcofreq = phy > 1000 * 100;
+	pi->regsd = ((pi->regm * clkin / 10) / (pi->regn * 250) + 5) / 10;
+
+	/* Set the reference clock to sysclk reference */
+	pi->refsel = HDMI_REFSEL_SYSCLK;
+
+	DSSDBG("M = %d Mf = %d\n", pi->regm, pi->regmf);
+	DSSDBG("range = %d sd = %d\n", pi->dcofreq, pi->regsd);
+}
+
+
+static int hdmi_pll_config(struct hdmi_pll_data *pll)
+{
+	u32 r;
+	struct hdmi_pll_info *fmt = &pll->info;
+
+	/* PLL start always use manual mode */
+	REG_FLD_MOD(pll->base, PLLCTRL_PLL_CONTROL, 0x0, 0, 0);
+
+	r = hdmi_read_reg(pll->base, PLLCTRL_CFG1);
+	r = FLD_MOD(r, fmt->regm, 20, 9);	/* CFG1_PLL_REGM */
+	r = FLD_MOD(r, fmt->regn - 1, 8, 1);	/* CFG1_PLL_REGN */
+	hdmi_write_reg(pll->base, PLLCTRL_CFG1, r);
+
+	r = hdmi_read_reg(pll->base, PLLCTRL_CFG2);
+
+	r = FLD_MOD(r, 0x0, 12, 12);	/* PLL_HIGHFREQ divide by 2 */
+	r = FLD_MOD(r, 0x1, 13, 13);	/* PLL_REFEN */
+	r = FLD_MOD(r, 0x0, 14, 14);	/* PHY_CLKINEN de-assert during locking */
+	r = FLD_MOD(r, fmt->refsel, 22, 21);	/* REFSEL */
+
+	if (fmt->dcofreq) {
+		/* divider programming for frequency beyond 1000Mhz */
+		REG_FLD_MOD(pll->base, PLLCTRL_CFG3, fmt->regsd, 17, 10);
+		r = FLD_MOD(r, 0x4, 3, 1);	/* 1000MHz and 2000MHz */
+	} else {
+		r = FLD_MOD(r, 0x2, 3, 1);	/* 500MHz and 1000MHz */
+	}
+
+	hdmi_write_reg(pll->base, PLLCTRL_CFG2, r);
+
+	r = hdmi_read_reg(pll->base, PLLCTRL_CFG4);
+	r = FLD_MOD(r, fmt->regm2, 24, 18);
+	r = FLD_MOD(r, fmt->regmf, 17, 0);
+	hdmi_write_reg(pll->base, PLLCTRL_CFG4, r);
+
+	/* go now */
+	REG_FLD_MOD(pll->base, PLLCTRL_PLL_GO, 0x1, 0, 0);
+
+	/* wait for bit change */
+	if (hdmi_wait_for_bit_change(pll->base, PLLCTRL_PLL_GO,
+			0, 0, 1) != 1) {
+		pr_err("PLL GO bit not set\n");
+		return -ETIMEDOUT;
+	}
+
+	/* Wait till the lock bit is set in PLL status */
+	if (hdmi_wait_for_bit_change(pll->base,
+			PLLCTRL_PLL_STATUS, 1, 1, 1) != 1) {
+		pr_err("cannot lock PLL\n");
+		pr_err("CFG1 0x%x\n",
+			hdmi_read_reg(pll->base, PLLCTRL_CFG1));
+		pr_err("CFG2 0x%x\n",
+			hdmi_read_reg(pll->base, PLLCTRL_CFG2));
+		pr_err("CFG4 0x%x\n",
+			hdmi_read_reg(pll->base, PLLCTRL_CFG4));
+		return -ETIMEDOUT;
+	}
+
+	pr_debug("PLL locked!\n");
+
+	return 0;
+}
+
+static int hdmi_pll_reset(struct hdmi_pll_data *pll)
+{
+	/* SYSRESET  controlled by power FSM */
+	REG_FLD_MOD(pll->base, PLLCTRL_PLL_CONTROL, 0x0, 3, 3);
+
+	/* READ 0x0 reset is in progress */
+	if (hdmi_wait_for_bit_change(pll->base, PLLCTRL_PLL_STATUS, 0, 0, 1)
+			!= 1) {
+		pr_err("Failed to sysreset PLL\n");
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+int hdmi_pll_enable(struct hdmi_pll_data *pll, struct hdmi_wp_data *wp)
+{
+	u16 r = 0;
+
+	r = hdmi_wp_set_pll_pwr(wp, HDMI_PLLPWRCMD_ALLOFF);
+	if (r)
+		return r;
+
+	r = hdmi_wp_set_pll_pwr(wp, HDMI_PLLPWRCMD_BOTHON_ALLCLKS);
+	if (r)
+		return r;
+
+	r = hdmi_pll_reset(pll);
+	if (r)
+		return r;
+
+	r = hdmi_pll_config(pll);
+	if (r)
+		return r;
+
+	return 0;
+}
+
+void hdmi_pll_disable(struct hdmi_pll_data *pll, struct hdmi_wp_data *wp)
+{
+	hdmi_wp_set_pll_pwr(wp, HDMI_PLLPWRCMD_ALLOFF);
+}
+
+#define PLL_OFFSET	0x200
+#define PLL_SIZE	0x100
+
+int hdmi_pll_init(struct platform_device *pdev, struct hdmi_pll_data *pll)
+{
+	struct resource *res;
+	struct resource temp_res;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hdmi_pllctrl");
+	if (!res) {
+		DSSDBG("can't get PLL mem resource by name\n");
+		/*
+		 * if hwmod/DT doesn't have the memory resource information
+		 * split into HDMI sub blocks by name, we try again by getting
+		 * the platform's first resource. this code will be removed when
+		 * the driver can get the mem resources by name
+		 */
+		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+		if (!res) {
+			DSSERR("can't get PLL mem resource\n");
+			return -EINVAL;
+		}
+
+		temp_res.start = res->start + PLL_OFFSET;
+		temp_res.end = temp_res.start + PLL_SIZE - 1;
+		res = &temp_res;
+	}
+
+	pll->base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
+	if (!pll->base) {
+		DSSERR("can't ioremap PLLCTRL\n");
+		return -ENOMEM;
+	}
+
+	return 0;
+}
diff --git a/drivers/video/omap2/dss/ti_hdmi.h b/drivers/video/omap2/dss/ti_hdmi.h
index d16f28de1272..62a83c79628e 100644
--- a/drivers/video/omap2/dss/ti_hdmi.h
+++ b/drivers/video/omap2/dss/ti_hdmi.h
@@ -155,14 +155,8 @@ struct ti_hdmi_ip_ops {
 
 	int (*read_edid)(struct hdmi_ip_data *ip_data, u8 *edid, int len);
 
-	int (*pll_enable)(struct hdmi_ip_data *ip_data);
-
-	void (*pll_disable)(struct hdmi_ip_data *ip_data);
-
 	void (*dump_core)(struct hdmi_ip_data *ip_data, struct seq_file *s);
 
-	void (*dump_pll)(struct hdmi_ip_data *ip_data, struct seq_file *s);
-
 	void (*dump_phy)(struct hdmi_ip_data *ip_data, struct seq_file *s);
 
 #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
@@ -223,17 +217,22 @@ struct hdmi_wp_data {
 	void __iomem *base;
 };
 
+struct hdmi_pll_data {
+	void __iomem *base;
+
+	struct hdmi_pll_info info;
+};
+
 struct hdmi_ip_data {
 	struct hdmi_wp_data	wp;
+	struct hdmi_pll_data	pll;
 
 	unsigned long	core_sys_offset;
 	unsigned long	core_av_offset;
-	unsigned long	pll_offset;
 	unsigned long	phy_offset;
 	int		irq;
 	const struct ti_hdmi_ip_ops *ops;
 	struct hdmi_config cfg;
-	struct hdmi_pll_info pll_data;
 	struct hdmi_core_infoframe_avi avi_cfg;
 
 	/* ti_hdmi_4xxx_ip private data. These should be in a separate struct */
@@ -260,13 +259,17 @@ void hdmi_wp_init_vid_fmt_timings(struct hdmi_video_format *video_fmt,
 		struct omap_video_timings *timings, struct hdmi_config *param);
 int hdmi_wp_init(struct platform_device *pdev, struct hdmi_wp_data *wp);
 
+/* HDMI PLL funcs */
+int hdmi_pll_enable(struct hdmi_pll_data *pll, struct hdmi_wp_data *wp);
+void hdmi_pll_disable(struct hdmi_pll_data *pll, struct hdmi_wp_data *wp);
+void hdmi_pll_dump(struct hdmi_pll_data *pll, struct seq_file *s);
+void hdmi_pll_compute(struct hdmi_pll_data *pll, unsigned long clkin, int phy);
+int hdmi_pll_init(struct platform_device *pdev, struct hdmi_pll_data *pll);
+
 int ti_hdmi_4xxx_phy_enable(struct hdmi_ip_data *ip_data);
 void ti_hdmi_4xxx_phy_disable(struct hdmi_ip_data *ip_data);
 int ti_hdmi_4xxx_read_edid(struct hdmi_ip_data *ip_data, u8 *edid, int len);
-int ti_hdmi_4xxx_pll_enable(struct hdmi_ip_data *ip_data);
-void ti_hdmi_4xxx_pll_disable(struct hdmi_ip_data *ip_data);
 void ti_hdmi_4xxx_basic_configure(struct hdmi_ip_data *ip_data);
-void ti_hdmi_4xxx_pll_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
 void ti_hdmi_4xxx_core_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
 void ti_hdmi_4xxx_phy_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
 #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
index d4b8883ecac0..8cfb54b39688 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
@@ -75,11 +75,6 @@ static inline void __iomem *hdmi_phy_base(struct hdmi_ip_data *ip_data)
 	return ip_data->wp.base + ip_data->phy_offset;
 }
 
-static inline void __iomem *hdmi_pll_base(struct hdmi_ip_data *ip_data)
-{
-	return ip_data->wp.base + ip_data->pll_offset;
-}
-
 static inline void __iomem *hdmi_av_base(struct hdmi_ip_data *ip_data)
 {
 	return ip_data->wp.base + ip_data->core_av_offset;
@@ -90,117 +85,6 @@ static inline void __iomem *hdmi_core_sys_base(struct hdmi_ip_data *ip_data)
 	return ip_data->wp.base + ip_data->core_sys_offset;
 }
 
-
-static int hdmi_pll_init(struct hdmi_ip_data *ip_data)
-{
-	u32 r;
-	void __iomem *pll_base = hdmi_pll_base(ip_data);
-	struct hdmi_pll_info *fmt = &ip_data->pll_data;
-
-	/* PLL start always use manual mode */
-	REG_FLD_MOD(pll_base, PLLCTRL_PLL_CONTROL, 0x0, 0, 0);
-
-	r = hdmi_read_reg(pll_base, PLLCTRL_CFG1);
-	r = FLD_MOD(r, fmt->regm, 20, 9); /* CFG1_PLL_REGM */
-	r = FLD_MOD(r, fmt->regn - 1, 8, 1);  /* CFG1_PLL_REGN */
-
-	hdmi_write_reg(pll_base, PLLCTRL_CFG1, r);
-
-	r = hdmi_read_reg(pll_base, PLLCTRL_CFG2);
-
-	r = FLD_MOD(r, 0x0, 12, 12); /* PLL_HIGHFREQ divide by 2 */
-	r = FLD_MOD(r, 0x1, 13, 13); /* PLL_REFEN */
-	r = FLD_MOD(r, 0x0, 14, 14); /* PHY_CLKINEN de-assert during locking */
-	r = FLD_MOD(r, fmt->refsel, 22, 21); /* REFSEL */
-
-	if (fmt->dcofreq) {
-		/* divider programming for frequency beyond 1000Mhz */
-		REG_FLD_MOD(pll_base, PLLCTRL_CFG3, fmt->regsd, 17, 10);
-		r = FLD_MOD(r, 0x4, 3, 1); /* 1000MHz and 2000MHz */
-	} else {
-		r = FLD_MOD(r, 0x2, 3, 1); /* 500MHz and 1000MHz */
-	}
-
-	hdmi_write_reg(pll_base, PLLCTRL_CFG2, r);
-
-	r = hdmi_read_reg(pll_base, PLLCTRL_CFG4);
-	r = FLD_MOD(r, fmt->regm2, 24, 18);
-	r = FLD_MOD(r, fmt->regmf, 17, 0);
-
-	hdmi_write_reg(pll_base, PLLCTRL_CFG4, r);
-
-	/* go now */
-	REG_FLD_MOD(pll_base, PLLCTRL_PLL_GO, 0x1, 0, 0);
-
-	/* wait for bit change */
-	if (hdmi_wait_for_bit_change(pll_base, PLLCTRL_PLL_GO,
-							0, 0, 1) != 1) {
-		pr_err("PLL GO bit not set\n");
-		return -ETIMEDOUT;
-	}
-
-	/* Wait till the lock bit is set in PLL status */
-	if (hdmi_wait_for_bit_change(pll_base,
-				PLLCTRL_PLL_STATUS, 1, 1, 1) != 1) {
-		pr_err("cannot lock PLL\n");
-		pr_err("CFG1 0x%x\n",
-			hdmi_read_reg(pll_base, PLLCTRL_CFG1));
-		pr_err("CFG2 0x%x\n",
-			hdmi_read_reg(pll_base, PLLCTRL_CFG2));
-		pr_err("CFG4 0x%x\n",
-			hdmi_read_reg(pll_base, PLLCTRL_CFG4));
-		return -ETIMEDOUT;
-	}
-
-	pr_debug("PLL locked!\n");
-
-	return 0;
-}
-
-
-static int hdmi_pll_reset(struct hdmi_ip_data *ip_data)
-{
-	/* SYSRESET  controlled by power FSM */
-	REG_FLD_MOD(hdmi_pll_base(ip_data), PLLCTRL_PLL_CONTROL, 0x0, 3, 3);
-
-	/* READ 0x0 reset is in progress */
-	if (hdmi_wait_for_bit_change(hdmi_pll_base(ip_data),
-				PLLCTRL_PLL_STATUS, 0, 0, 1) != 1) {
-		pr_err("Failed to sysreset PLL\n");
-		return -ETIMEDOUT;
-	}
-
-	return 0;
-}
-
-int ti_hdmi_4xxx_pll_enable(struct hdmi_ip_data *ip_data)
-{
-	u16 r = 0;
-
-	r = hdmi_wp_set_pll_pwr(&ip_data->wp, HDMI_PLLPWRCMD_ALLOFF);
-	if (r)
-		return r;
-
-	r = hdmi_wp_set_pll_pwr(&ip_data->wp, HDMI_PLLPWRCMD_BOTHON_ALLCLKS);
-	if (r)
-		return r;
-
-	r = hdmi_pll_reset(ip_data);
-	if (r)
-		return r;
-
-	r = hdmi_pll_init(ip_data);
-	if (r)
-		return r;
-
-	return 0;
-}
-
-void ti_hdmi_4xxx_pll_disable(struct hdmi_ip_data *ip_data)
-{
-	hdmi_wp_set_pll_pwr(&ip_data->wp, HDMI_PLLPWRCMD_ALLOFF);
-}
-
 static irqreturn_t hdmi_irq_handler(int irq, void *data)
 {
 	struct hdmi_ip_data *ip_data = data;
@@ -717,22 +601,6 @@ void ti_hdmi_4xxx_basic_configure(struct hdmi_ip_data *ip_data)
 	hdmi_core_av_packet_config(ip_data, repeat_cfg);
 }
 
-void ti_hdmi_4xxx_pll_dump(struct hdmi_ip_data *ip_data, struct seq_file *s)
-{
-#define DUMPPLL(r) seq_printf(s, "%-35s %08x\n", #r,\
-		hdmi_read_reg(hdmi_pll_base(ip_data), r))
-
-	DUMPPLL(PLLCTRL_PLL_CONTROL);
-	DUMPPLL(PLLCTRL_PLL_STATUS);
-	DUMPPLL(PLLCTRL_PLL_GO);
-	DUMPPLL(PLLCTRL_CFG1);
-	DUMPPLL(PLLCTRL_CFG2);
-	DUMPPLL(PLLCTRL_CFG3);
-	DUMPPLL(PLLCTRL_SSC_CFG1);
-	DUMPPLL(PLLCTRL_SSC_CFG2);
-	DUMPPLL(PLLCTRL_CFG4);
-}
-
 void ti_hdmi_4xxx_core_dump(struct hdmi_ip_data *ip_data, struct seq_file *s)
 {
 	int i;
-- 
cgit 


From 5cac5aee18568579931267d3211371a176efa476 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Tue, 8 Oct 2013 13:07:00 +0530
Subject: omapdss: HDMI: create a PHY library

HDMI PHY is a block common to DSS in OMAP4, OMAP5 and DRA7x. Move the
existing functions from ti_hdmi_4xxx_ip.c to a separate file. These funcs are
called directly from the hdmi driver rather than hdmi_ip_ops function pointer
calls.

Add the PHY library function declarations to ti_hdmi.h. These will be shared
amongst the omap4/5 hdmi platform drivers. Remove the PHY function pointer ops
from the ti_hdmi_ip_ops struct.

The DT/hwmod information for hdmi doesn't split the address space according to
the required sub blocks. Keep the address offset and size information in the
driver for now. This will be removed when the driver gets the information
correctly from DT/hwmod.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/Makefile          |   3 +-
 drivers/video/omap2/dss/dss_features.c    |   3 -
 drivers/video/omap2/dss/hdmi.c            |  19 ++-
 drivers/video/omap2/dss/hdmi_phy.c        | 194 ++++++++++++++++++++++++++++++
 drivers/video/omap2/dss/ti_hdmi.h         |  26 ++--
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | 109 -----------------
 6 files changed, 219 insertions(+), 135 deletions(-)
 create mode 100644 drivers/video/omap2/dss/hdmi_phy.c

diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile
index 5ea65d327cfb..d88e93870e15 100644
--- a/drivers/video/omap2/dss/Makefile
+++ b/drivers/video/omap2/dss/Makefile
@@ -10,5 +10,6 @@ omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o
 omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o
 omapdss-$(CONFIG_OMAP2_DSS_SDI) += sdi.o
 omapdss-$(CONFIG_OMAP2_DSS_DSI) += dsi.o
-omapdss-$(CONFIG_OMAP4_DSS_HDMI) += hdmi.o hdmi_wp.o hdmi_pll.o ti_hdmi_4xxx_ip.o
+omapdss-$(CONFIG_OMAP4_DSS_HDMI) += hdmi.o hdmi_wp.o hdmi_pll.o hdmi_phy.o \
+	ti_hdmi_4xxx_ip.o
 ccflags-$(CONFIG_OMAP2_DSS_DEBUG) += -DDEBUG
diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index 9ee92e90caff..2777eb6d603b 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -794,11 +794,8 @@ static const struct omap_dss_features omap5_dss_features = {
 static const struct ti_hdmi_ip_ops omap4_hdmi_functions = {
 
 	.video_configure	=	ti_hdmi_4xxx_basic_configure,
-	.phy_enable		=	ti_hdmi_4xxx_phy_enable,
-	.phy_disable		=	ti_hdmi_4xxx_phy_disable,
 	.read_edid		=	ti_hdmi_4xxx_read_edid,
 	.dump_core		=	ti_hdmi_4xxx_core_dump,
-	.dump_phy		=	ti_hdmi_4xxx_phy_dump,
 #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
 	.audio_start		=       ti_hdmi_4xxx_audio_start,
 	.audio_stop		=       ti_hdmi_4xxx_audio_stop,
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index f6a2eba244e7..f7e2ac6861b6 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -42,7 +42,6 @@
 
 #define HDMI_CORE_SYS		0x400
 #define HDMI_CORE_AV		0x900
-#define HDMI_PHY		0x300
 
 /* HDMI EDID Length move this */
 #define HDMI_EDID_MAX_LENGTH			256
@@ -487,7 +486,8 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev)
 		goto err_pll_enable;
 	}
 
-	r = hdmi.ip_data.ops->phy_enable(&hdmi.ip_data);
+	r = hdmi_phy_enable(&hdmi.ip_data.phy, &hdmi.ip_data.wp,
+		&hdmi.ip_data.cfg);
 	if (r) {
 		DSSDBG("Failed to start PHY\n");
 		goto err_phy_enable;
@@ -514,7 +514,7 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev)
 err_mgr_enable:
 	hdmi_wp_video_stop(&hdmi.ip_data.wp);
 err_vid_enable:
-	hdmi.ip_data.ops->phy_disable(&hdmi.ip_data);
+	hdmi_phy_disable(&hdmi.ip_data.phy, &hdmi.ip_data.wp);
 err_phy_enable:
 	hdmi_pll_disable(&hdmi.ip_data.pll, &hdmi.ip_data.wp);
 err_pll_enable:
@@ -529,7 +529,7 @@ static void hdmi_power_off_full(struct omap_dss_device *dssdev)
 	dss_mgr_disable(mgr);
 
 	hdmi_wp_video_stop(&hdmi.ip_data.wp);
-	hdmi.ip_data.ops->phy_disable(&hdmi.ip_data);
+	hdmi_phy_disable(&hdmi.ip_data.phy, &hdmi.ip_data.wp);
 	hdmi_pll_disable(&hdmi.ip_data.pll, &hdmi.ip_data.wp);
 
 	hdmi_power_off_core(dssdev);
@@ -593,7 +593,7 @@ static void hdmi_dump_regs(struct seq_file *s)
 
 	hdmi_wp_dump(&hdmi.ip_data.wp, s);
 	hdmi_pll_dump(&hdmi.ip_data.pll, s);
-	hdmi.ip_data.ops->dump_phy(&hdmi.ip_data, s);
+	hdmi_phy_dump(&hdmi.ip_data.phy, s);
 	hdmi.ip_data.ops->dump_core(&hdmi.ip_data, s);
 
 	hdmi_runtime_put();
@@ -1049,11 +1049,9 @@ static int omapdss_hdmihw_probe(struct platform_device *pdev)
 	if (r)
 		return r;
 
-	hdmi.ip_data.irq = platform_get_irq(pdev, 0);
-	if (hdmi.ip_data.irq < 0) {
-		DSSERR("platform_get_irq failed\n");
-		return -ENODEV;
-	}
+	r = hdmi_phy_init(pdev, &hdmi.ip_data.phy);
+	if (r)
+		return r;
 
 	r = hdmi_get_clocks(pdev);
 	if (r) {
@@ -1065,7 +1063,6 @@ static int omapdss_hdmihw_probe(struct platform_device *pdev)
 
 	hdmi.ip_data.core_sys_offset = HDMI_CORE_SYS;
 	hdmi.ip_data.core_av_offset = HDMI_CORE_AV;
-	hdmi.ip_data.phy_offset = HDMI_PHY;
 
 	hdmi_init_output(pdev);
 
diff --git a/drivers/video/omap2/dss/hdmi_phy.c b/drivers/video/omap2/dss/hdmi_phy.c
new file mode 100644
index 000000000000..48bdba8d7031
--- /dev/null
+++ b/drivers/video/omap2/dss/hdmi_phy.c
@@ -0,0 +1,194 @@
+/*
+ * HDMI PHY
+ *
+ * Copyright (C) 2013 Texas Instruments Incorporated
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <video/omapdss.h>
+
+#include "dss.h"
+#include "ti_hdmi.h"
+#include "ti_hdmi_4xxx_ip.h"
+
+#define HDMI_IRQ_LINK_CONNECT		(1 << 25)
+#define HDMI_IRQ_LINK_DISCONNECT	(1 << 26)
+
+static inline void hdmi_write_reg(void __iomem *base_addr, const u16 idx,
+		u32 val)
+{
+	__raw_writel(val, base_addr + idx);
+}
+
+static inline u32 hdmi_read_reg(void __iomem *base_addr, const u16 idx)
+{
+	return __raw_readl(base_addr + idx);
+}
+
+#define REG_FLD_MOD(base, idx, val, start, end) \
+	hdmi_write_reg(base, idx, FLD_MOD(hdmi_read_reg(base, idx),\
+							val, start, end))
+#define REG_GET(base, idx, start, end) \
+	FLD_GET(hdmi_read_reg(base, idx), start, end)
+
+static inline int hdmi_wait_for_bit_change(void __iomem *base_addr,
+		const u16 idx, int b2, int b1, u32 val)
+{
+	u32 t = 0;
+	while (val != REG_GET(base_addr, idx, b2, b1)) {
+		udelay(1);
+		if (t++ > 10000)
+			return !val;
+	}
+	return val;
+}
+
+void hdmi_phy_dump(struct hdmi_phy_data *phy, struct seq_file *s)
+{
+#define DUMPPHY(r) seq_printf(s, "%-35s %08x\n", #r,\
+		hdmi_read_reg(phy->base, r))
+
+	DUMPPHY(HDMI_TXPHY_TX_CTRL);
+	DUMPPHY(HDMI_TXPHY_DIGITAL_CTRL);
+	DUMPPHY(HDMI_TXPHY_POWER_CTRL);
+	DUMPPHY(HDMI_TXPHY_PAD_CFG_CTRL);
+}
+
+static irqreturn_t hdmi_irq_handler(int irq, void *data)
+{
+	struct hdmi_wp_data *wp = data;
+	u32 irqstatus;
+
+	irqstatus = hdmi_wp_get_irqstatus(wp);
+	hdmi_wp_set_irqstatus(wp, irqstatus);
+
+	if ((irqstatus & HDMI_IRQ_LINK_CONNECT) &&
+			irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
+		/*
+		 * If we get both connect and disconnect interrupts at the same
+		 * time, turn off the PHY, clear interrupts, and restart, which
+		 * raises connect interrupt if a cable is connected, or nothing
+		 * if cable is not connected.
+		 */
+		hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_OFF);
+
+		hdmi_wp_set_irqstatus(wp, HDMI_IRQ_LINK_CONNECT |
+				HDMI_IRQ_LINK_DISCONNECT);
+
+		hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
+	} else if (irqstatus & HDMI_IRQ_LINK_CONNECT) {
+		hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_TXON);
+	} else if (irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
+		hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
+	}
+
+	return IRQ_HANDLED;
+}
+
+int hdmi_phy_enable(struct hdmi_phy_data *phy, struct hdmi_wp_data *wp,
+			struct hdmi_config *cfg)
+{
+	u16 r = 0;
+	u32 irqstatus;
+
+	hdmi_wp_clear_irqenable(wp, 0xffffffff);
+
+	irqstatus = hdmi_wp_get_irqstatus(wp);
+	hdmi_wp_set_irqstatus(wp, irqstatus);
+
+	r = hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_LDOON);
+	if (r)
+		return r;
+
+	/*
+	 * Read address 0 in order to get the SCP reset done completed
+	 * Dummy access performed to make sure reset is done
+	 */
+	hdmi_read_reg(phy->base, HDMI_TXPHY_TX_CTRL);
+
+	/*
+	 * Write to phy address 0 to configure the clock
+	 * use HFBITCLK write HDMI_TXPHY_TX_CONTROL_FREQOUT field
+	 */
+	REG_FLD_MOD(phy->base, HDMI_TXPHY_TX_CTRL, 0x1, 31, 30);
+
+	/* Write to phy address 1 to start HDMI line (TXVALID and TMDSCLKEN) */
+	hdmi_write_reg(phy->base, HDMI_TXPHY_DIGITAL_CTRL, 0xF0000000);
+
+	/* Setup max LDO voltage */
+	REG_FLD_MOD(phy->base, HDMI_TXPHY_POWER_CTRL, 0xB, 3, 0);
+
+	/* Write to phy address 3 to change the polarity control */
+	REG_FLD_MOD(phy->base, HDMI_TXPHY_PAD_CFG_CTRL, 0x1, 27, 27);
+
+	r = request_threaded_irq(phy->irq, NULL, hdmi_irq_handler,
+				IRQF_ONESHOT, "OMAP HDMI", wp);
+	if (r) {
+		DSSERR("HDMI IRQ request failed\n");
+		hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_OFF);
+		return r;
+	}
+
+	hdmi_wp_set_irqenable(wp,
+		HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT);
+
+	return 0;
+}
+
+void hdmi_phy_disable(struct hdmi_phy_data *phy, struct hdmi_wp_data *wp)
+{
+	free_irq(phy->irq, wp);
+
+	hdmi_wp_set_phy_pwr(wp, HDMI_PHYPWRCMD_OFF);
+}
+
+#define PHY_OFFSET	0x300
+#define PHY_SIZE	0x100
+
+int hdmi_phy_init(struct platform_device *pdev, struct hdmi_phy_data *phy)
+{
+	struct resource *res;
+	struct resource temp_res;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hdmi_txphy");
+	if (!res) {
+		DSSDBG("can't get PHY mem resource by name\n");
+		/*
+		 * if hwmod/DT doesn't have the memory resource information
+		 * split into HDMI sub blocks by name, we try again by getting
+		 * the platform's first resource. this code will be removed when
+		 * the driver can get the mem resources by name
+		 */
+		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+		if (!res) {
+			DSSERR("can't get PHY mem resource\n");
+			return -EINVAL;
+		}
+
+		temp_res.start = res->start + PHY_OFFSET;
+		temp_res.end = temp_res.start + PHY_SIZE - 1;
+		res = &temp_res;
+	}
+
+	phy->base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
+	if (!phy->base) {
+		DSSERR("can't ioremap TX PHY\n");
+		return -ENOMEM;
+	}
+
+	phy->irq = platform_get_irq(pdev, 0);
+	if (phy->irq < 0) {
+		DSSERR("platform_get_irq failed\n");
+		return -ENODEV;
+	}
+
+	return 0;
+}
diff --git a/drivers/video/omap2/dss/ti_hdmi.h b/drivers/video/omap2/dss/ti_hdmi.h
index 62a83c79628e..716bac450ef0 100644
--- a/drivers/video/omap2/dss/ti_hdmi.h
+++ b/drivers/video/omap2/dss/ti_hdmi.h
@@ -149,16 +149,10 @@ struct ti_hdmi_ip_ops {
 
 	void (*video_configure)(struct hdmi_ip_data *ip_data);
 
-	int (*phy_enable)(struct hdmi_ip_data *ip_data);
-
-	void (*phy_disable)(struct hdmi_ip_data *ip_data);
-
 	int (*read_edid)(struct hdmi_ip_data *ip_data, u8 *edid, int len);
 
 	void (*dump_core)(struct hdmi_ip_data *ip_data, struct seq_file *s);
 
-	void (*dump_phy)(struct hdmi_ip_data *ip_data, struct seq_file *s);
-
 #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
 	int (*audio_start)(struct hdmi_ip_data *ip_data);
 
@@ -223,14 +217,20 @@ struct hdmi_pll_data {
 	struct hdmi_pll_info info;
 };
 
+struct hdmi_phy_data {
+	void __iomem *base;
+
+	int irq;
+};
+
 struct hdmi_ip_data {
 	struct hdmi_wp_data	wp;
 	struct hdmi_pll_data	pll;
+	struct hdmi_phy_data	phy;
 
 	unsigned long	core_sys_offset;
 	unsigned long	core_av_offset;
-	unsigned long	phy_offset;
-	int		irq;
+
 	const struct ti_hdmi_ip_ops *ops;
 	struct hdmi_config cfg;
 	struct hdmi_core_infoframe_avi avi_cfg;
@@ -266,12 +266,16 @@ void hdmi_pll_dump(struct hdmi_pll_data *pll, struct seq_file *s);
 void hdmi_pll_compute(struct hdmi_pll_data *pll, unsigned long clkin, int phy);
 int hdmi_pll_init(struct platform_device *pdev, struct hdmi_pll_data *pll);
 
-int ti_hdmi_4xxx_phy_enable(struct hdmi_ip_data *ip_data);
-void ti_hdmi_4xxx_phy_disable(struct hdmi_ip_data *ip_data);
+/* HDMI PHY funcs */
+int hdmi_phy_enable(struct hdmi_phy_data *phy, struct hdmi_wp_data *wp,
+		struct hdmi_config *cfg);
+void hdmi_phy_disable(struct hdmi_phy_data *phy, struct hdmi_wp_data *wp);
+void hdmi_phy_dump(struct hdmi_phy_data *phy, struct seq_file *s);
+int hdmi_phy_init(struct platform_device *pdev, struct hdmi_phy_data *phy);
+
 int ti_hdmi_4xxx_read_edid(struct hdmi_ip_data *ip_data, u8 *edid, int len);
 void ti_hdmi_4xxx_basic_configure(struct hdmi_ip_data *ip_data);
 void ti_hdmi_4xxx_core_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
-void ti_hdmi_4xxx_phy_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
 #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
 int hdmi_compute_acr(u32 sample_freq, u32 *n, u32 *cts);
 int hdmi_wp_audio_enable(struct hdmi_wp_data *wp, bool enable);
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
index 8cfb54b39688..c705aa113aac 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
@@ -37,9 +37,6 @@
 #include "dss.h"
 #include "dss_features.h"
 
-#define HDMI_IRQ_LINK_CONNECT		(1 << 25)
-#define HDMI_IRQ_LINK_DISCONNECT	(1 << 26)
-
 static inline void hdmi_write_reg(void __iomem *base_addr,
 				const u16 idx, u32 val)
 {
@@ -70,11 +67,6 @@ static inline int hdmi_wait_for_bit_change(void __iomem *base_addr,
 	return val;
 }
 
-static inline void __iomem *hdmi_phy_base(struct hdmi_ip_data *ip_data)
-{
-	return ip_data->wp.base + ip_data->phy_offset;
-}
-
 static inline void __iomem *hdmi_av_base(struct hdmi_ip_data *ip_data)
 {
 	return ip_data->wp.base + ip_data->core_av_offset;
@@ -85,94 +77,6 @@ static inline void __iomem *hdmi_core_sys_base(struct hdmi_ip_data *ip_data)
 	return ip_data->wp.base + ip_data->core_sys_offset;
 }
 
-static irqreturn_t hdmi_irq_handler(int irq, void *data)
-{
-	struct hdmi_ip_data *ip_data = data;
-	u32 irqstatus;
-
-	irqstatus = hdmi_wp_get_irqstatus(&ip_data->wp);
-	hdmi_wp_set_irqstatus(&ip_data->wp, irqstatus);
-
-	if ((irqstatus & HDMI_IRQ_LINK_CONNECT) &&
-			irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
-		/*
-		 * If we get both connect and disconnect interrupts at the same
-		 * time, turn off the PHY, clear interrupts, and restart, which
-		 * raises connect interrupt if a cable is connected, or nothing
-		 * if cable is not connected.
-		 */
-		hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_OFF);
-
-		hdmi_wp_set_irqstatus(&ip_data->wp, HDMI_IRQ_LINK_CONNECT |
-				HDMI_IRQ_LINK_DISCONNECT);
-
-		hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_LDOON);
-	} else if (irqstatus & HDMI_IRQ_LINK_CONNECT) {
-		hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_TXON);
-	} else if (irqstatus & HDMI_IRQ_LINK_DISCONNECT) {
-		hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_LDOON);
-	}
-
-	return IRQ_HANDLED;
-}
-
-int ti_hdmi_4xxx_phy_enable(struct hdmi_ip_data *ip_data)
-{
-	u16 r = 0;
-	u32 irqstatus;
-	void __iomem *phy_base = hdmi_phy_base(ip_data);
-
-	hdmi_wp_clear_irqenable(&ip_data->wp, 0xffffffff);
-
-	irqstatus = hdmi_wp_get_irqstatus(&ip_data->wp);
-	hdmi_wp_set_irqstatus(&ip_data->wp, irqstatus);
-
-	r = hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_LDOON);
-	if (r)
-		return r;
-
-	/*
-	 * Read address 0 in order to get the SCP reset done completed
-	 * Dummy access performed to make sure reset is done
-	 */
-	hdmi_read_reg(phy_base, HDMI_TXPHY_TX_CTRL);
-
-	/*
-	 * Write to phy address 0 to configure the clock
-	 * use HFBITCLK write HDMI_TXPHY_TX_CONTROL_FREQOUT field
-	 */
-	REG_FLD_MOD(phy_base, HDMI_TXPHY_TX_CTRL, 0x1, 31, 30);
-
-	/* Write to phy address 1 to start HDMI line (TXVALID and TMDSCLKEN) */
-	hdmi_write_reg(phy_base, HDMI_TXPHY_DIGITAL_CTRL, 0xF0000000);
-
-	/* Setup max LDO voltage */
-	REG_FLD_MOD(phy_base, HDMI_TXPHY_POWER_CTRL, 0xB, 3, 0);
-
-	/* Write to phy address 3 to change the polarity control */
-	REG_FLD_MOD(phy_base, HDMI_TXPHY_PAD_CFG_CTRL, 0x1, 27, 27);
-
-	r = request_threaded_irq(ip_data->irq, NULL, hdmi_irq_handler,
-				 IRQF_ONESHOT, "OMAP HDMI", ip_data);
-	if (r) {
-		DSSERR("HDMI IRQ request failed\n");
-		hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_OFF);
-		return r;
-	}
-
-	hdmi_wp_set_irqenable(&ip_data->wp,
-		HDMI_IRQ_LINK_CONNECT | HDMI_IRQ_LINK_DISCONNECT);
-
-	return 0;
-}
-
-void ti_hdmi_4xxx_phy_disable(struct hdmi_ip_data *ip_data)
-{
-	free_irq(ip_data->irq, ip_data);
-
-	hdmi_wp_set_phy_pwr(&ip_data->wp, HDMI_PHYPWRCMD_OFF);
-}
-
 static int hdmi_core_ddc_init(struct hdmi_ip_data *ip_data)
 {
 	void __iomem *base = hdmi_core_sys_base(ip_data);
@@ -524,8 +428,6 @@ static void hdmi_core_av_packet_config(struct hdmi_ip_data *ip_data,
 		(repeat_cfg.generic_pkt_repeat));
 }
 
-
-
 void ti_hdmi_4xxx_basic_configure(struct hdmi_ip_data *ip_data)
 {
 	/* HDMI */
@@ -769,17 +671,6 @@ void ti_hdmi_4xxx_core_dump(struct hdmi_ip_data *ip_data, struct seq_file *s)
 	DUMPCOREAV(HDMI_CORE_AV_CEC_ADDR_ID);
 }
 
-void ti_hdmi_4xxx_phy_dump(struct hdmi_ip_data *ip_data, struct seq_file *s)
-{
-#define DUMPPHY(r) seq_printf(s, "%-35s %08x\n", #r,\
-		hdmi_read_reg(hdmi_phy_base(ip_data), r))
-
-	DUMPPHY(HDMI_TXPHY_TX_CTRL);
-	DUMPPHY(HDMI_TXPHY_DIGITAL_CTRL);
-	DUMPPHY(HDMI_TXPHY_POWER_CTRL);
-	DUMPPHY(HDMI_TXPHY_PAD_CFG_CTRL);
-}
-
 #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
 static void ti_hdmi_4xxx_core_audio_config(struct hdmi_ip_data *ip_data,
 					struct hdmi_core_audio_config *cfg)
-- 
cgit 


From 425f02fdee32ec0b6ae36067abe9586149120163 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Tue, 8 Oct 2013 14:16:05 +0530
Subject: omapdss: HDMI: Use OMAP4 HDMI core functions directly and remove
 hdmi_ip_ops

After removing wrapper, pll and phy funcs from ti_hdmi_4xxx_ip.c, we are left
with OMAP4 HDMI core functions. Use these directly in hdmi.c rather than using
hdmi_ip_ops. Rename the core functions with a 'hdmi4' suffix.

We used to have hdmi_ip_ops so that one could support HDMI within a TI SoC which
had a non-DSS display subsytem. This however never got put into use, and hence
these ops aren't useful any more.

The DT/hwmod information for hdmi doesn't split the address space according to
the required sub blocks. Keep the address offset and size information in the
driver for now. This will be removed when the driver gets the information
correctly from DT/hwmod.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dss_features.c    |  33 -----
 drivers/video/omap2/dss/dss_features.h    |   8 --
 drivers/video/omap2/dss/hdmi.c            |  27 ++--
 drivers/video/omap2/dss/ti_hdmi.h         |  41 +-----
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | 223 +++++++++++++++++-------------
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h |  14 ++
 6 files changed, 162 insertions(+), 184 deletions(-)

diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index 2777eb6d603b..f8fd6dbacabc 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -789,39 +789,6 @@ static const struct omap_dss_features omap5_dss_features = {
 	.burst_size_unit = 16,
 };
 
-#if defined(CONFIG_OMAP4_DSS_HDMI)
-/* HDMI OMAP4 Functions*/
-static const struct ti_hdmi_ip_ops omap4_hdmi_functions = {
-
-	.video_configure	=	ti_hdmi_4xxx_basic_configure,
-	.read_edid		=	ti_hdmi_4xxx_read_edid,
-	.dump_core		=	ti_hdmi_4xxx_core_dump,
-#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-	.audio_start		=       ti_hdmi_4xxx_audio_start,
-	.audio_stop		=       ti_hdmi_4xxx_audio_stop,
-	.audio_config		=	ti_hdmi_4xxx_audio_config,
-	.audio_get_dma_port	=	ti_hdmi_4xxx_audio_get_dma_port,
-#endif
-
-};
-
-void dss_init_hdmi_ip_ops(struct hdmi_ip_data *ip_data,
-		enum omapdss_version version)
-{
-	switch (version) {
-	case OMAPDSS_VER_OMAP4430_ES1:
-	case OMAPDSS_VER_OMAP4430_ES2:
-	case OMAPDSS_VER_OMAP4:
-		ip_data->ops = &omap4_hdmi_functions;
-		break;
-	default:
-		ip_data->ops = NULL;
-	}
-
-	WARN_ON(ip_data->ops == NULL);
-}
-#endif
-
 /* Functions returning values related to a DSS feature */
 int dss_feat_get_num_mgrs(void)
 {
diff --git a/drivers/video/omap2/dss/dss_features.h b/drivers/video/omap2/dss/dss_features.h
index 489b9bec4a6d..10b0556e1352 100644
--- a/drivers/video/omap2/dss/dss_features.h
+++ b/drivers/video/omap2/dss/dss_features.h
@@ -20,10 +20,6 @@
 #ifndef __OMAP2_DSS_FEATURES_H
 #define __OMAP2_DSS_FEATURES_H
 
-#if defined(CONFIG_OMAP4_DSS_HDMI)
-#include "ti_hdmi.h"
-#endif
-
 #define MAX_DSS_MANAGERS	4
 #define MAX_DSS_OVERLAYS	4
 #define MAX_DSS_LCD_MANAGERS	3
@@ -117,8 +113,4 @@ bool dss_feat_rotation_type_supported(enum omap_dss_rotation_type rot_type);
 bool dss_has_feature(enum dss_feat_id id);
 void dss_feat_get_reg_field(enum dss_feat_reg_field id, u8 *start, u8 *end);
 void dss_features_init(enum omapdss_version version);
-#if defined(CONFIG_OMAP4_DSS_HDMI)
-void dss_init_hdmi_ip_ops(struct hdmi_ip_data *ip_data,
-		enum omapdss_version version);
-#endif
 #endif
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index f7e2ac6861b6..0e9ecd691c5c 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -37,12 +37,10 @@
 #include <video/omapdss.h>
 
 #include "ti_hdmi.h"
+#include "ti_hdmi_4xxx_ip.h"
 #include "dss.h"
 #include "dss_features.h"
 
-#define HDMI_CORE_SYS		0x400
-#define HDMI_CORE_AV		0x900
-
 /* HDMI EDID Length move this */
 #define HDMI_EDID_MAX_LENGTH			256
 #define EDID_TIMING_DESCRIPTOR_SIZE		0x12
@@ -493,7 +491,8 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev)
 		goto err_phy_enable;
 	}
 
-	hdmi.ip_data.ops->video_configure(&hdmi.ip_data);
+	hdmi4_configure(&hdmi.ip_data.core, &hdmi.ip_data.wp,
+		&hdmi.ip_data.cfg);
 
 	/* bypass TV gamma table */
 	dispc_enable_gamma_table(0);
@@ -594,7 +593,7 @@ static void hdmi_dump_regs(struct seq_file *s)
 	hdmi_wp_dump(&hdmi.ip_data.wp, s);
 	hdmi_pll_dump(&hdmi.ip_data.pll, s);
 	hdmi_phy_dump(&hdmi.ip_data.phy, s);
-	hdmi.ip_data.ops->dump_core(&hdmi.ip_data, s);
+	hdmi4_core_dump(&hdmi.ip_data.core, s);
 
 	hdmi_runtime_put();
 	mutex_unlock(&hdmi.lock);
@@ -609,7 +608,7 @@ static int read_edid(u8 *buf, int len)
 	r = hdmi_runtime_get();
 	BUG_ON(r);
 
-	r = hdmi.ip_data.ops->read_edid(&hdmi.ip_data, buf, len);
+	r = hdmi4_read_edid(&hdmi.ip_data.core,  buf, len);
 
 	hdmi_runtime_put();
 	mutex_unlock(&hdmi.lock);
@@ -813,7 +812,6 @@ static bool hdmi_mode_has_audio(void)
 	else
 		return false;
 }
-
 #endif
 
 static int hdmi_connect(struct omap_dss_device *dssdev,
@@ -822,8 +820,6 @@ static int hdmi_connect(struct omap_dss_device *dssdev,
 	struct omap_overlay_manager *mgr;
 	int r;
 
-	dss_init_hdmi_ip_ops(&hdmi.ip_data, omapdss_get_version());
-
 	r = hdmi_init_regulator();
 	if (r)
 		return r;
@@ -914,12 +910,12 @@ static void hdmi_audio_disable(struct omap_dss_device *dssdev)
 
 static int hdmi_audio_start(struct omap_dss_device *dssdev)
 {
-	return hdmi.ip_data.ops->audio_start(&hdmi.ip_data);
+	return hdmi4_audio_start(&hdmi.ip_data.core, &hdmi.ip_data.wp);
 }
 
 static void hdmi_audio_stop(struct omap_dss_device *dssdev)
 {
-	hdmi.ip_data.ops->audio_stop(&hdmi.ip_data);
+	hdmi4_audio_stop(&hdmi.ip_data.core, &hdmi.ip_data.wp);
 }
 
 static bool hdmi_audio_supported(struct omap_dss_device *dssdev)
@@ -946,7 +942,7 @@ static int hdmi_audio_config(struct omap_dss_device *dssdev,
 		goto err;
 	}
 
-	r = hdmi.ip_data.ops->audio_config(&hdmi.ip_data, audio);
+	r = hdmi4_audio_config(&hdmi.ip_data.core, &hdmi.ip_data.wp, audio);
 	if (r)
 		goto err;
 
@@ -1053,6 +1049,10 @@ static int omapdss_hdmihw_probe(struct platform_device *pdev)
 	if (r)
 		return r;
 
+	r = hdmi4_core_init(pdev, &hdmi.ip_data.core);
+	if (r)
+		return r;
+
 	r = hdmi_get_clocks(pdev);
 	if (r) {
 		DSSERR("can't get clocks\n");
@@ -1061,9 +1061,6 @@ static int omapdss_hdmihw_probe(struct platform_device *pdev)
 
 	pm_runtime_enable(&pdev->dev);
 
-	hdmi.ip_data.core_sys_offset = HDMI_CORE_SYS;
-	hdmi.ip_data.core_av_offset = HDMI_CORE_AV;
-
 	hdmi_init_output(pdev);
 
 	dss_debugfs_create_file("hdmi", hdmi_dump_regs);
diff --git a/drivers/video/omap2/dss/ti_hdmi.h b/drivers/video/omap2/dss/ti_hdmi.h
index 716bac450ef0..9eb9b321314d 100644
--- a/drivers/video/omap2/dss/ti_hdmi.h
+++ b/drivers/video/omap2/dss/ti_hdmi.h
@@ -145,27 +145,6 @@ struct hdmi_audio_dma {
 	u16				fifo_threshold;
 };
 
-struct ti_hdmi_ip_ops {
-
-	void (*video_configure)(struct hdmi_ip_data *ip_data);
-
-	int (*read_edid)(struct hdmi_ip_data *ip_data, u8 *edid, int len);
-
-	void (*dump_core)(struct hdmi_ip_data *ip_data, struct seq_file *s);
-
-#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-	int (*audio_start)(struct hdmi_ip_data *ip_data);
-
-	void (*audio_stop)(struct hdmi_ip_data *ip_data);
-
-	int (*audio_config)(struct hdmi_ip_data *ip_data,
-		struct omap_dss_audio *audio);
-
-	int (*audio_get_dma_port)(u32 *offset, u32 *size);
-#endif
-
-};
-
 /*
  * Refer to section 8.2 in HDMI 1.3 specification for
  * details about infoframe databytes
@@ -223,17 +202,19 @@ struct hdmi_phy_data {
 	int irq;
 };
 
+struct hdmi_core_data {
+	void __iomem *base;
+
+	struct hdmi_core_infoframe_avi avi_cfg;
+};
+
 struct hdmi_ip_data {
 	struct hdmi_wp_data	wp;
 	struct hdmi_pll_data	pll;
 	struct hdmi_phy_data	phy;
+	struct hdmi_core_data	core;
 
-	unsigned long	core_sys_offset;
-	unsigned long	core_av_offset;
-
-	const struct ti_hdmi_ip_ops *ops;
 	struct hdmi_config cfg;
-	struct hdmi_core_infoframe_avi avi_cfg;
 
 	/* ti_hdmi_4xxx_ip private data. These should be in a separate struct */
 	struct mutex lock;
@@ -273,9 +254,6 @@ void hdmi_phy_disable(struct hdmi_phy_data *phy, struct hdmi_wp_data *wp);
 void hdmi_phy_dump(struct hdmi_phy_data *phy, struct seq_file *s);
 int hdmi_phy_init(struct platform_device *pdev, struct hdmi_phy_data *phy);
 
-int ti_hdmi_4xxx_read_edid(struct hdmi_ip_data *ip_data, u8 *edid, int len);
-void ti_hdmi_4xxx_basic_configure(struct hdmi_ip_data *ip_data);
-void ti_hdmi_4xxx_core_dump(struct hdmi_ip_data *ip_data, struct seq_file *s);
 #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
 int hdmi_compute_acr(u32 sample_freq, u32 *n, u32 *cts);
 int hdmi_wp_audio_enable(struct hdmi_wp_data *wp, bool enable);
@@ -284,10 +262,5 @@ void hdmi_wp_audio_config_format(struct hdmi_wp_data *wp,
 		struct hdmi_audio_format *aud_fmt);
 void hdmi_wp_audio_config_dma(struct hdmi_wp_data *wp,
 		struct hdmi_audio_dma *aud_dma);
-int ti_hdmi_4xxx_audio_start(struct hdmi_ip_data *ip_data);
-void ti_hdmi_4xxx_audio_stop(struct hdmi_ip_data *ip_data);
-int ti_hdmi_4xxx_audio_config(struct hdmi_ip_data *ip_data,
-		struct omap_dss_audio *audio);
-int ti_hdmi_4xxx_audio_get_dma_port(u32 *offset, u32 *size);
 #endif
 #endif
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
index c705aa113aac..4ac9e0af7ca6 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
@@ -26,6 +26,7 @@
 #include <linux/interrupt.h>
 #include <linux/mutex.h>
 #include <linux/delay.h>
+#include <linux/platform_device.h>
 #include <linux/string.h>
 #include <linux/seq_file.h>
 #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
@@ -37,6 +38,8 @@
 #include "dss.h"
 #include "dss_features.h"
 
+#define HDMI_CORE_AV		0x500
+
 static inline void hdmi_write_reg(void __iomem *base_addr,
 				const u16 idx, u32 val)
 {
@@ -67,19 +70,14 @@ static inline int hdmi_wait_for_bit_change(void __iomem *base_addr,
 	return val;
 }
 
-static inline void __iomem *hdmi_av_base(struct hdmi_ip_data *ip_data)
-{
-	return ip_data->wp.base + ip_data->core_av_offset;
-}
-
-static inline void __iomem *hdmi_core_sys_base(struct hdmi_ip_data *ip_data)
+static inline void __iomem *hdmi_av_base(struct hdmi_core_data *core)
 {
-	return ip_data->wp.base + ip_data->core_sys_offset;
+	return core->base + HDMI_CORE_AV;
 }
 
-static int hdmi_core_ddc_init(struct hdmi_ip_data *ip_data)
+static int hdmi_core_ddc_init(struct hdmi_core_data *core)
 {
-	void __iomem *base = hdmi_core_sys_base(ip_data);
+	void __iomem *base = core->base;
 
 	/* Turn on CLK for DDC */
 	REG_FLD_MOD(base, HDMI_CORE_AV_DPD, 0x7, 2, 0);
@@ -119,10 +117,10 @@ static int hdmi_core_ddc_init(struct hdmi_ip_data *ip_data)
 	return 0;
 }
 
-static int hdmi_core_ddc_edid(struct hdmi_ip_data *ip_data,
+static int hdmi_core_ddc_edid(struct hdmi_core_data *core,
 		u8 *pedid, int ext)
 {
-	void __iomem *base = hdmi_core_sys_base(ip_data);
+	void __iomem *base = core->base;
 	u32 i;
 	char checksum;
 	u32 offset = 0;
@@ -201,26 +199,25 @@ static int hdmi_core_ddc_edid(struct hdmi_ip_data *ip_data,
 	return 0;
 }
 
-int ti_hdmi_4xxx_read_edid(struct hdmi_ip_data *ip_data,
-				u8 *edid, int len)
+int hdmi4_read_edid(struct hdmi_core_data *core, u8 *edid, int len)
 {
 	int r, l;
 
 	if (len < 128)
 		return -EINVAL;
 
-	r = hdmi_core_ddc_init(ip_data);
+	r = hdmi_core_ddc_init(core);
 	if (r)
 		return r;
 
-	r = hdmi_core_ddc_edid(ip_data, edid, 0);
+	r = hdmi_core_ddc_edid(core, edid, 0);
 	if (r)
 		return r;
 
 	l = 128;
 
 	if (len >= 128 * 2 && edid[0x7e] > 0) {
-		r = hdmi_core_ddc_edid(ip_data, edid + 0x80, 1);
+		r = hdmi_core_ddc_edid(core, edid + 0x80, 1);
 		if (r)
 			return r;
 		l += 128;
@@ -273,30 +270,31 @@ static void hdmi_core_init(struct hdmi_core_video_config *video_cfg,
 	repeat_cfg->generic_pkt_repeat = 0;
 }
 
-static void hdmi_core_powerdown_disable(struct hdmi_ip_data *ip_data)
+static void hdmi_core_powerdown_disable(struct hdmi_core_data *core)
 {
 	pr_debug("Enter hdmi_core_powerdown_disable\n");
-	REG_FLD_MOD(hdmi_core_sys_base(ip_data), HDMI_CORE_SYS_SYS_CTRL1, 0x0, 0, 0);
+	REG_FLD_MOD(core->base, HDMI_CORE_SYS_SYS_CTRL1, 0x0, 0, 0);
 }
 
-static void hdmi_core_swreset_release(struct hdmi_ip_data *ip_data)
+static void hdmi_core_swreset_release(struct hdmi_core_data *core)
 {
 	pr_debug("Enter hdmi_core_swreset_release\n");
-	REG_FLD_MOD(hdmi_core_sys_base(ip_data), HDMI_CORE_SYS_SRST, 0x0, 0, 0);
+	REG_FLD_MOD(core->base, HDMI_CORE_SYS_SRST, 0x0, 0, 0);
 }
 
-static void hdmi_core_swreset_assert(struct hdmi_ip_data *ip_data)
+static void hdmi_core_swreset_assert(struct hdmi_core_data *core)
 {
 	pr_debug("Enter hdmi_core_swreset_assert\n");
-	REG_FLD_MOD(hdmi_core_sys_base(ip_data), HDMI_CORE_SYS_SRST, 0x1, 0, 0);
+	REG_FLD_MOD(core->base, HDMI_CORE_SYS_SRST, 0x1, 0, 0);
 }
 
 /* HDMI_CORE_VIDEO_CONFIG */
-static void hdmi_core_video_config(struct hdmi_ip_data *ip_data,
+static void hdmi_core_video_config(struct hdmi_core_data *core,
 				struct hdmi_core_video_config *cfg)
 {
 	u32 r = 0;
-	void __iomem *core_sys_base = hdmi_core_sys_base(ip_data);
+	void __iomem *core_sys_base = core->base;
+	void __iomem *core_av_base = hdmi_av_base(core);
 
 	/* sys_ctrl1 default configuration not tunable */
 	r = hdmi_read_reg(core_sys_base, HDMI_CORE_SYS_SYS_CTRL1);
@@ -323,23 +321,23 @@ static void hdmi_core_video_config(struct hdmi_ip_data *ip_data,
 	hdmi_write_reg(core_sys_base, HDMI_CORE_SYS_VID_MODE, r);
 
 	/* HDMI_Ctrl */
-	r = hdmi_read_reg(hdmi_av_base(ip_data), HDMI_CORE_AV_HDMI_CTRL);
+	r = hdmi_read_reg(core_av_base, HDMI_CORE_AV_HDMI_CTRL);
 	r = FLD_MOD(r, cfg->deep_color_pkt, 6, 6);
 	r = FLD_MOD(r, cfg->pkt_mode, 5, 3);
 	r = FLD_MOD(r, cfg->hdmi_dvi, 0, 0);
-	hdmi_write_reg(hdmi_av_base(ip_data), HDMI_CORE_AV_HDMI_CTRL, r);
+	hdmi_write_reg(core_av_base, HDMI_CORE_AV_HDMI_CTRL, r);
 
 	/* TMDS_CTRL */
 	REG_FLD_MOD(core_sys_base,
 			HDMI_CORE_SYS_TMDS_CTRL, cfg->tclk_sel_clkmult, 6, 5);
 }
 
-static void hdmi_core_aux_infoframe_avi_config(struct hdmi_ip_data *ip_data)
+static void hdmi_core_aux_infoframe_avi_config(struct hdmi_core_data *core)
 {
 	u32 val;
 	char sum = 0, checksum = 0;
-	void __iomem *av_base = hdmi_av_base(ip_data);
-	struct hdmi_core_infoframe_avi info_avi = ip_data->avi_cfg;
+	void __iomem *av_base = hdmi_av_base(core);
+	struct hdmi_core_infoframe_avi info_avi = core->avi_cfg;
 
 	sum += 0x82 + 0x002 + 0x00D;
 	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_TYPE, 0x082);
@@ -410,64 +408,64 @@ static void hdmi_core_aux_infoframe_avi_config(struct hdmi_ip_data *ip_data)
 	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_CHSUM, checksum);
 }
 
-static void hdmi_core_av_packet_config(struct hdmi_ip_data *ip_data,
+static void hdmi_core_av_packet_config(struct hdmi_core_data *core,
 		struct hdmi_core_packet_enable_repeat repeat_cfg)
 {
 	/* enable/repeat the infoframe */
-	hdmi_write_reg(hdmi_av_base(ip_data), HDMI_CORE_AV_PB_CTRL1,
+	hdmi_write_reg(hdmi_av_base(core), HDMI_CORE_AV_PB_CTRL1,
 		(repeat_cfg.audio_pkt << 5) |
 		(repeat_cfg.audio_pkt_repeat << 4) |
 		(repeat_cfg.avi_infoframe << 1) |
 		(repeat_cfg.avi_infoframe_repeat));
 
 	/* enable/repeat the packet */
-	hdmi_write_reg(hdmi_av_base(ip_data), HDMI_CORE_AV_PB_CTRL2,
+	hdmi_write_reg(hdmi_av_base(core), HDMI_CORE_AV_PB_CTRL2,
 		(repeat_cfg.gen_cntrl_pkt << 3) |
 		(repeat_cfg.gen_cntrl_pkt_repeat << 2) |
 		(repeat_cfg.generic_pkt << 1) |
 		(repeat_cfg.generic_pkt_repeat));
 }
 
-void ti_hdmi_4xxx_basic_configure(struct hdmi_ip_data *ip_data)
+void hdmi4_configure(struct hdmi_core_data *core,
+	struct hdmi_wp_data *wp, struct hdmi_config *cfg)
 {
 	/* HDMI */
 	struct omap_video_timings video_timing;
 	struct hdmi_video_format video_format;
 	/* HDMI core */
-	struct hdmi_core_infoframe_avi *avi_cfg = &ip_data->avi_cfg;
+	struct hdmi_core_infoframe_avi *avi_cfg = &core->avi_cfg;
 	struct hdmi_core_video_config v_core_cfg;
 	struct hdmi_core_packet_enable_repeat repeat_cfg;
-	struct hdmi_config *cfg = &ip_data->cfg;
 
 	hdmi_core_init(&v_core_cfg, avi_cfg, &repeat_cfg);
 
 	hdmi_wp_init_vid_fmt_timings(&video_format, &video_timing, cfg);
 
-	hdmi_wp_video_config_timing(&ip_data->wp, &video_timing);
+	hdmi_wp_video_config_timing(wp, &video_timing);
 
 	/* video config */
 	video_format.packing_mode = HDMI_PACK_24b_RGB_YUV444_YUV422;
 
-	hdmi_wp_video_config_format(&ip_data->wp, &video_format);
+	hdmi_wp_video_config_format(wp, &video_format);
 
-	hdmi_wp_video_config_interface(&ip_data->wp, &video_timing);
+	hdmi_wp_video_config_interface(wp, &video_timing);
 
 	/*
 	 * configure core video part
 	 * set software reset in the core
 	 */
-	hdmi_core_swreset_assert(ip_data);
+	hdmi_core_swreset_assert(core);
 
 	/* power down off */
-	hdmi_core_powerdown_disable(ip_data);
+	hdmi_core_powerdown_disable(core);
 
 	v_core_cfg.pkt_mode = HDMI_PACKETMODE24BITPERPIXEL;
 	v_core_cfg.hdmi_dvi = cfg->cm.mode;
 
-	hdmi_core_video_config(ip_data, &v_core_cfg);
+	hdmi_core_video_config(core, &v_core_cfg);
 
 	/* release software reset in the core */
-	hdmi_core_swreset_release(ip_data);
+	hdmi_core_swreset_release(core);
 
 	/*
 	 * configure packet
@@ -492,7 +490,7 @@ void ti_hdmi_4xxx_basic_configure(struct hdmi_ip_data *ip_data)
 	avi_cfg->db10_11_pixel_eofleft = 0;
 	avi_cfg->db12_13_pixel_sofright = 0;
 
-	hdmi_core_aux_infoframe_avi_config(ip_data);
+	hdmi_core_aux_infoframe_avi_config(core);
 
 	/* enable/repeat the infoframe */
 	repeat_cfg.avi_infoframe = HDMI_PACKETENABLE;
@@ -500,21 +498,21 @@ void ti_hdmi_4xxx_basic_configure(struct hdmi_ip_data *ip_data)
 	/* wakeup */
 	repeat_cfg.audio_pkt = HDMI_PACKETENABLE;
 	repeat_cfg.audio_pkt_repeat = HDMI_PACKETREPEATON;
-	hdmi_core_av_packet_config(ip_data, repeat_cfg);
+	hdmi_core_av_packet_config(core, repeat_cfg);
 }
 
-void ti_hdmi_4xxx_core_dump(struct hdmi_ip_data *ip_data, struct seq_file *s)
+void hdmi4_core_dump(struct hdmi_core_data *core, struct seq_file *s)
 {
 	int i;
 
 #define CORE_REG(i, name) name(i)
 #define DUMPCORE(r) seq_printf(s, "%-35s %08x\n", #r,\
-		hdmi_read_reg(hdmi_core_sys_base(ip_data), r))
+		hdmi_read_reg(core->base, r))
 #define DUMPCOREAV(r) seq_printf(s, "%-35s %08x\n", #r,\
-		hdmi_read_reg(hdmi_av_base(ip_data), r))
+		hdmi_read_reg(hdmi_av_base(core), r))
 #define DUMPCOREAV2(i, r) seq_printf(s, "%s[%d]%*s %08x\n", #r, i, \
 		(i < 10) ? 32 - (int)strlen(#r) : 31 - (int)strlen(#r), " ", \
-		hdmi_read_reg(hdmi_av_base(ip_data), CORE_REG(i, r)))
+		hdmi_read_reg(hdmi_av_base(core), CORE_REG(i, r)))
 
 	DUMPCORE(HDMI_CORE_SYS_VND_IDL);
 	DUMPCORE(HDMI_CORE_SYS_DEV_IDL);
@@ -672,11 +670,11 @@ void ti_hdmi_4xxx_core_dump(struct hdmi_ip_data *ip_data, struct seq_file *s)
 }
 
 #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-static void ti_hdmi_4xxx_core_audio_config(struct hdmi_ip_data *ip_data,
+static void hdmi_core_audio_config(struct hdmi_core_data *core,
 					struct hdmi_core_audio_config *cfg)
 {
 	u32 r;
-	void __iomem *av_base = hdmi_av_base(ip_data);
+	void __iomem *av_base = hdmi_av_base(core);
 
 	/*
 	 * Parameters for generation of Audio Clock Recovery packets
@@ -771,11 +769,11 @@ static void ti_hdmi_4xxx_core_audio_config(struct hdmi_ip_data *ip_data,
 	REG_FLD_MOD(av_base, HDMI_CORE_AV_SWAP_I2S, 1, 5, 5);
 }
 
-static void ti_hdmi_4xxx_core_audio_infoframe_cfg(struct hdmi_ip_data *ip_data,
+static void hdmi_core_audio_infoframe_cfg(struct hdmi_core_data *core,
 		struct snd_cea_861_aud_if *info_aud)
 {
 	u8 sum = 0, checksum = 0;
-	void __iomem *av_base = hdmi_av_base(ip_data);
+	void __iomem *av_base = hdmi_av_base(core);
 
 	/*
 	 * Set audio info frame type, version and length as
@@ -821,20 +819,20 @@ static void ti_hdmi_4xxx_core_audio_infoframe_cfg(struct hdmi_ip_data *ip_data,
 	 */
 }
 
-int ti_hdmi_4xxx_audio_config(struct hdmi_ip_data *ip_data,
+int hdmi4_audio_config(struct hdmi_core_data *core, struct hdmi_wp_data *wp,
 		struct omap_dss_audio *audio)
 {
 	struct hdmi_audio_format audio_format;
 	struct hdmi_audio_dma audio_dma;
-	struct hdmi_core_audio_config core;
+	struct hdmi_core_audio_config acore;
 	int err, n, cts, channel_count;
 	unsigned int fs_nr;
 	bool word_length_16b = false;
 
-	if (!audio || !audio->iec || !audio->cea || !ip_data)
+	if (!audio || !audio->iec || !audio->cea || !core)
 		return -EINVAL;
 
-	core.iec60958_cfg = audio->iec;
+	acore.iec60958_cfg = audio->iec;
 	/*
 	 * In the IEC-60958 status word, check if the audio sample word length
 	 * is 16-bit as several optimizations can be performed in such case.
@@ -845,22 +843,22 @@ int ti_hdmi_4xxx_audio_config(struct hdmi_ip_data *ip_data,
 
 	/* I2S configuration. See Phillips' specification */
 	if (word_length_16b)
-		core.i2s_cfg.justification = HDMI_AUDIO_JUSTIFY_LEFT;
+		acore.i2s_cfg.justification = HDMI_AUDIO_JUSTIFY_LEFT;
 	else
-		core.i2s_cfg.justification = HDMI_AUDIO_JUSTIFY_RIGHT;
+		acore.i2s_cfg.justification = HDMI_AUDIO_JUSTIFY_RIGHT;
 	/*
 	 * The I2S input word length is twice the lenght given in the IEC-60958
 	 * status word. If the word size is greater than
 	 * 20 bits, increment by one.
 	 */
-	core.i2s_cfg.in_length_bits = audio->iec->status[4]
+	acore.i2s_cfg.in_length_bits = audio->iec->status[4]
 		& IEC958_AES4_CON_WORDLEN;
 	if (audio->iec->status[4] & IEC958_AES4_CON_MAX_WORDLEN_24)
-		core.i2s_cfg.in_length_bits++;
-	core.i2s_cfg.sck_edge_mode = HDMI_AUDIO_I2S_SCK_EDGE_RISING;
-	core.i2s_cfg.vbit = HDMI_AUDIO_I2S_VBIT_FOR_PCM;
-	core.i2s_cfg.direction = HDMI_AUDIO_I2S_MSB_SHIFTED_FIRST;
-	core.i2s_cfg.shift = HDMI_AUDIO_I2S_FIRST_BIT_SHIFT;
+		acore.i2s_cfg.in_length_bits++;
+	acore.i2s_cfg.sck_edge_mode = HDMI_AUDIO_I2S_SCK_EDGE_RISING;
+	acore.i2s_cfg.vbit = HDMI_AUDIO_I2S_VBIT_FOR_PCM;
+	acore.i2s_cfg.direction = HDMI_AUDIO_I2S_MSB_SHIFTED_FIRST;
+	acore.i2s_cfg.shift = HDMI_AUDIO_I2S_FIRST_BIT_SHIFT;
 
 	/* convert sample frequency to a number */
 	switch (audio->iec->status[3] & IEC958_AES3_CON_FS) {
@@ -892,20 +890,20 @@ int ti_hdmi_4xxx_audio_config(struct hdmi_ip_data *ip_data,
 	err = hdmi_compute_acr(fs_nr, &n, &cts);
 
 	/* Audio clock regeneration settings */
-	core.n = n;
-	core.cts = cts;
+	acore.n = n;
+	acore.cts = cts;
 	if (dss_has_feature(FEAT_HDMI_CTS_SWMODE)) {
-		core.aud_par_busclk = 0;
-		core.cts_mode = HDMI_AUDIO_CTS_MODE_SW;
-		core.use_mclk = dss_has_feature(FEAT_HDMI_AUDIO_USE_MCLK);
+		acore.aud_par_busclk = 0;
+		acore.cts_mode = HDMI_AUDIO_CTS_MODE_SW;
+		acore.use_mclk = dss_has_feature(FEAT_HDMI_AUDIO_USE_MCLK);
 	} else {
-		core.aud_par_busclk = (((128 * 31) - 1) << 8);
-		core.cts_mode = HDMI_AUDIO_CTS_MODE_HW;
-		core.use_mclk = true;
+		acore.aud_par_busclk = (((128 * 31) - 1) << 8);
+		acore.cts_mode = HDMI_AUDIO_CTS_MODE_HW;
+		acore.use_mclk = true;
 	}
 
-	if (core.use_mclk)
-		core.mclk_mode = HDMI_AUDIO_MCLK_128FS;
+	if (acore.use_mclk)
+		acore.mclk_mode = HDMI_AUDIO_MCLK_128FS;
 
 	/* Audio channels settings */
 	channel_count = (audio->cea->db1_ct_cc &
@@ -943,25 +941,25 @@ int ti_hdmi_4xxx_audio_config(struct hdmi_ip_data *ip_data,
 	 */
 	if (channel_count == 2) {
 		audio_format.stereo_channels = HDMI_AUDIO_STEREO_ONECHANNEL;
-		core.i2s_cfg.active_sds = HDMI_AUDIO_I2S_SD0_EN;
-		core.layout = HDMI_AUDIO_LAYOUT_2CH;
+		acore.i2s_cfg.active_sds = HDMI_AUDIO_I2S_SD0_EN;
+		acore.layout = HDMI_AUDIO_LAYOUT_2CH;
 	} else {
 		audio_format.stereo_channels = HDMI_AUDIO_STEREO_FOURCHANNELS;
-		core.i2s_cfg.active_sds = HDMI_AUDIO_I2S_SD0_EN |
+		acore.i2s_cfg.active_sds = HDMI_AUDIO_I2S_SD0_EN |
 				HDMI_AUDIO_I2S_SD1_EN | HDMI_AUDIO_I2S_SD2_EN |
 				HDMI_AUDIO_I2S_SD3_EN;
-		core.layout = HDMI_AUDIO_LAYOUT_8CH;
+		acore.layout = HDMI_AUDIO_LAYOUT_8CH;
 	}
 
-	core.en_spdif = false;
+	acore.en_spdif = false;
 	/* use sample frequency from channel status word */
-	core.fs_override = true;
+	acore.fs_override = true;
 	/* enable ACR packets */
-	core.en_acr_pkt = true;
+	acore.en_acr_pkt = true;
 	/* disable direct streaming digital audio */
-	core.en_dsd_audio = false;
+	acore.en_dsd_audio = false;
 	/* use parallel audio interface */
-	core.en_parallel_aud_input = true;
+	acore.en_parallel_aud_input = true;
 
 	/* DMA settings */
 	if (word_length_16b)
@@ -988,37 +986,37 @@ int ti_hdmi_4xxx_audio_config(struct hdmi_ip_data *ip_data,
 	audio_format.en_sig_blk_strt_end = HDMI_AUDIO_BLOCK_SIG_STARTEND_ON;
 
 	/* configure DMA and audio FIFO format*/
-	hdmi_wp_audio_config_dma(&ip_data->wp, &audio_dma);
-	hdmi_wp_audio_config_format(&ip_data->wp, &audio_format);
+	hdmi_wp_audio_config_dma(wp, &audio_dma);
+	hdmi_wp_audio_config_format(wp, &audio_format);
 
 	/* configure the core*/
-	ti_hdmi_4xxx_core_audio_config(ip_data, &core);
+	hdmi_core_audio_config(core, &acore);
 
 	/* configure CEA 861 audio infoframe*/
-	ti_hdmi_4xxx_core_audio_infoframe_cfg(ip_data, audio->cea);
+	hdmi_core_audio_infoframe_cfg(core, audio->cea);
 
 	return 0;
 }
 
-int ti_hdmi_4xxx_audio_start(struct hdmi_ip_data *ip_data)
+int hdmi4_audio_start(struct hdmi_core_data *core, struct hdmi_wp_data *wp)
 {
-	REG_FLD_MOD(hdmi_av_base(ip_data),
+	REG_FLD_MOD(hdmi_av_base(core),
 		    HDMI_CORE_AV_AUD_MODE, true, 0, 0);
 
-	hdmi_wp_audio_core_req_enable(&ip_data->wp, true);
+	hdmi_wp_audio_core_req_enable(wp, true);
 
 	return 0;
 }
 
-void ti_hdmi_4xxx_audio_stop(struct hdmi_ip_data *ip_data)
+void hdmi4_audio_stop(struct hdmi_core_data *core, struct hdmi_wp_data *wp)
 {
-	REG_FLD_MOD(hdmi_av_base(ip_data),
+	REG_FLD_MOD(hdmi_av_base(core),
 		    HDMI_CORE_AV_AUD_MODE, false, 0, 0);
 
-	hdmi_wp_audio_core_req_enable(&ip_data->wp, false);
+	hdmi_wp_audio_core_req_enable(wp, false);
 }
 
-int ti_hdmi_4xxx_audio_get_dma_port(u32 *offset, u32 *size)
+int hdmi4_audio_get_dma_port(u32 *offset, u32 *size)
 {
 	if (!offset || !size)
 		return -EINVAL;
@@ -1028,3 +1026,40 @@ int ti_hdmi_4xxx_audio_get_dma_port(u32 *offset, u32 *size)
 }
 
 #endif
+
+#define CORE_OFFSET		0x400
+#define CORE_SIZE		0xc00
+
+int hdmi4_core_init(struct platform_device *pdev, struct hdmi_core_data *core)
+{
+	struct resource *res;
+	struct resource temp_res;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hdmi_core");
+	if (!res) {
+		DSSDBG("can't get CORE mem resource by name\n");
+		/*
+		 * if hwmod/DT doesn't have the memory resource information
+		 * split into HDMI sub blocks by name, we try again by getting
+		 * the platform's first resource. this code will be removed when
+		 * the driver can get the mem resources by name
+		 */
+		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+		if (!res) {
+			DSSERR("can't get CORE mem resource\n");
+			return -EINVAL;
+		}
+
+		temp_res.start = res->start + CORE_OFFSET;
+		temp_res.end = temp_res.start + CORE_SIZE - 1;
+		res = &temp_res;
+	}
+
+	core->base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
+	if (!core->base) {
+		DSSERR("can't ioremap CORE\n");
+		return -ENOMEM;
+	}
+
+	return 0;
+}
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
index dc49713a894b..b9bb30004703 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
@@ -400,4 +400,18 @@ struct hdmi_core_audio_config {
 	bool					en_spdif;
 };
 
+int hdmi4_read_edid(struct hdmi_core_data *core, u8 *edid, int len);
+void hdmi4_configure(struct hdmi_core_data *core, struct hdmi_wp_data *wp,
+		struct hdmi_config *cfg);
+void hdmi4_core_dump(struct hdmi_core_data *core, struct seq_file *s);
+int hdmi4_core_init(struct platform_device *pdev, struct hdmi_core_data *core);
+
+#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
+int hdmi4_audio_start(struct hdmi_core_data *core, struct hdmi_wp_data *wp);
+void hdmi4_audio_stop(struct hdmi_core_data *core, struct hdmi_wp_data *wp);
+int hdmi4_audio_config(struct hdmi_core_data *core, struct hdmi_wp_data *wp,
+		struct omap_dss_audio *audio);
+int hdmi4_audio_get_dma_port(u32 *offset, u32 *size);
+#endif
+
 #endif
-- 
cgit 


From 275cfa1a9d43f00d1ae59f36fa0c3ed7f941b369 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Tue, 8 Oct 2013 14:22:03 +0530
Subject: omapdss: HDMI: remove hdmi_ip_data struct

The struct hdmi_ip_data contains information related to HDMI wrapper, PLL, PHY
and core sub-blocks. Now that each of these sub blocks has it's own struct,
hdmi_ip_data serves no purpose. The mutex lock in the struct was also never
used.

Remove this struct to make things cleaner.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/hdmi.c    | 91 ++++++++++++++++++++-------------------
 drivers/video/omap2/dss/ti_hdmi.h | 14 ------
 2 files changed, 47 insertions(+), 58 deletions(-)

diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index 0e9ecd691c5c..f03d6c7530e4 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -53,7 +53,12 @@ static struct {
 	struct mutex lock;
 	struct platform_device *pdev;
 
-	struct hdmi_ip_data ip_data;
+	struct hdmi_wp_data	wp;
+	struct hdmi_pll_data	pll;
+	struct hdmi_phy_data	phy;
+	struct hdmi_core_data	core;
+
+	struct hdmi_config cfg;
 
 	struct clk *sys_clk;
 	struct regulator *vdda_hdmi_dac_reg;
@@ -348,7 +353,7 @@ static const struct hdmi_config *hdmi_find_timing(
 	int i;
 
 	for (i = 0; i < len; i++) {
-		if (timings_arr[i].cm.code == hdmi.ip_data.cfg.cm.code)
+		if (timings_arr[i].cm.code == hdmi.cfg.cm.code)
 			return &timings_arr[i];
 	}
 	return NULL;
@@ -359,15 +364,15 @@ static const struct hdmi_config *hdmi_get_timings(void)
        const struct hdmi_config *arr;
        int len;
 
-       if (hdmi.ip_data.cfg.cm.mode == HDMI_DVI) {
-               arr = vesa_timings;
-               len = ARRAY_SIZE(vesa_timings);
-       } else {
-               arr = cea_timings;
-               len = ARRAY_SIZE(cea_timings);
-       }
+	if (hdmi.cfg.cm.mode == HDMI_DVI) {
+		arr = vesa_timings;
+		len = ARRAY_SIZE(vesa_timings);
+	} else {
+		arr = cea_timings;
+		len = ARRAY_SIZE(cea_timings);
+	}
 
-       return hdmi_find_timing(arr, len);
+	return hdmi_find_timing(arr, len);
 }
 
 static bool hdmi_timings_compare(struct omap_video_timings *timing1,
@@ -467,32 +472,30 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev)
 
 	dss_mgr_disable(mgr);
 
-	p = &hdmi.ip_data.cfg.timings;
+	p = &hdmi.cfg.timings;
 
 	DSSDBG("hdmi_power_on x_res= %d y_res = %d\n", p->x_res, p->y_res);
 
 	phy = p->pixel_clock;
 
-	hdmi_pll_compute(&hdmi.ip_data.pll, clk_get_rate(hdmi.sys_clk), phy);
+	hdmi_pll_compute(&hdmi.pll, clk_get_rate(hdmi.sys_clk), phy);
 
-	hdmi_wp_video_stop(&hdmi.ip_data.wp);
+	hdmi_wp_video_stop(&hdmi.wp);
 
 	/* config the PLL and PHY hdmi_set_pll_pwrfirst */
-	r = hdmi_pll_enable(&hdmi.ip_data.pll, &hdmi.ip_data.wp);
+	r = hdmi_pll_enable(&hdmi.pll, &hdmi.wp);
 	if (r) {
 		DSSDBG("Failed to lock PLL\n");
 		goto err_pll_enable;
 	}
 
-	r = hdmi_phy_enable(&hdmi.ip_data.phy, &hdmi.ip_data.wp,
-		&hdmi.ip_data.cfg);
+	r = hdmi_phy_enable(&hdmi.phy, &hdmi.wp, &hdmi.cfg);
 	if (r) {
 		DSSDBG("Failed to start PHY\n");
 		goto err_phy_enable;
 	}
 
-	hdmi4_configure(&hdmi.ip_data.core, &hdmi.ip_data.wp,
-		&hdmi.ip_data.cfg);
+	hdmi4_configure(&hdmi.core, &hdmi.wp, &hdmi.cfg);
 
 	/* bypass TV gamma table */
 	dispc_enable_gamma_table(0);
@@ -500,7 +503,7 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev)
 	/* tv size */
 	dss_mgr_set_timings(mgr, p);
 
-	r = hdmi_wp_video_start(&hdmi.ip_data.wp);
+	r = hdmi_wp_video_start(&hdmi.wp);
 	if (r)
 		goto err_vid_enable;
 
@@ -511,11 +514,11 @@ static int hdmi_power_on_full(struct omap_dss_device *dssdev)
 	return 0;
 
 err_mgr_enable:
-	hdmi_wp_video_stop(&hdmi.ip_data.wp);
+	hdmi_wp_video_stop(&hdmi.wp);
 err_vid_enable:
-	hdmi_phy_disable(&hdmi.ip_data.phy, &hdmi.ip_data.wp);
+	hdmi_phy_disable(&hdmi.phy, &hdmi.wp);
 err_phy_enable:
-	hdmi_pll_disable(&hdmi.ip_data.pll, &hdmi.ip_data.wp);
+	hdmi_pll_disable(&hdmi.pll, &hdmi.wp);
 err_pll_enable:
 	hdmi_power_off_core(dssdev);
 	return -EIO;
@@ -527,9 +530,9 @@ static void hdmi_power_off_full(struct omap_dss_device *dssdev)
 
 	dss_mgr_disable(mgr);
 
-	hdmi_wp_video_stop(&hdmi.ip_data.wp);
-	hdmi_phy_disable(&hdmi.ip_data.phy, &hdmi.ip_data.wp);
-	hdmi_pll_disable(&hdmi.ip_data.pll, &hdmi.ip_data.wp);
+	hdmi_wp_video_stop(&hdmi.wp);
+	hdmi_phy_disable(&hdmi.phy, &hdmi.wp);
+	hdmi_pll_disable(&hdmi.pll, &hdmi.wp);
 
 	hdmi_power_off_core(dssdev);
 }
@@ -557,11 +560,11 @@ static void hdmi_display_set_timing(struct omap_dss_device *dssdev,
 	mutex_lock(&hdmi.lock);
 
 	cm = hdmi_get_code(timings);
-	hdmi.ip_data.cfg.cm = cm;
+	hdmi.cfg.cm = cm;
 
 	t = hdmi_get_timings();
 	if (t != NULL) {
-		hdmi.ip_data.cfg = *t;
+		hdmi.cfg = *t;
 
 		dispc_set_tv_pclk(t->timings.pixel_clock * 1000);
 	}
@@ -590,10 +593,10 @@ static void hdmi_dump_regs(struct seq_file *s)
 		return;
 	}
 
-	hdmi_wp_dump(&hdmi.ip_data.wp, s);
-	hdmi_pll_dump(&hdmi.ip_data.pll, s);
-	hdmi_phy_dump(&hdmi.ip_data.phy, s);
-	hdmi4_core_dump(&hdmi.ip_data.core, s);
+	hdmi_wp_dump(&hdmi.wp, s);
+	hdmi_pll_dump(&hdmi.pll, s);
+	hdmi_phy_dump(&hdmi.phy, s);
+	hdmi4_core_dump(&hdmi.core, s);
 
 	hdmi_runtime_put();
 	mutex_unlock(&hdmi.lock);
@@ -608,7 +611,7 @@ static int read_edid(u8 *buf, int len)
 	r = hdmi_runtime_get();
 	BUG_ON(r);
 
-	r = hdmi4_read_edid(&hdmi.ip_data.core,  buf, len);
+	r = hdmi4_read_edid(&hdmi.core,  buf, len);
 
 	hdmi_runtime_put();
 	mutex_unlock(&hdmi.lock);
@@ -709,7 +712,7 @@ int hdmi_compute_acr(u32 sample_freq, u32 *n, u32 *cts)
 {
 	u32 deep_color;
 	bool deep_color_correct = false;
-	u32 pclk = hdmi.ip_data.cfg.timings.pixel_clock;
+	u32 pclk = hdmi.cfg.timings.pixel_clock;
 
 	if (n == NULL || cts == NULL)
 		return -EINVAL;
@@ -807,11 +810,12 @@ int hdmi_compute_acr(u32 sample_freq, u32 *n, u32 *cts)
 
 static bool hdmi_mode_has_audio(void)
 {
-	if (hdmi.ip_data.cfg.cm.mode == HDMI_HDMI)
+	if (hdmi.cfg.cm.mode == HDMI_HDMI)
 		return true;
 	else
 		return false;
 }
+
 #endif
 
 static int hdmi_connect(struct omap_dss_device *dssdev,
@@ -891,7 +895,7 @@ static int hdmi_audio_enable(struct omap_dss_device *dssdev)
 		goto err;
 	}
 
-	r = hdmi_wp_audio_enable(&hdmi.ip_data.wp, true);
+	r = hdmi_wp_audio_enable(&hdmi.wp, true);
 	if (r)
 		goto err;
 
@@ -905,17 +909,17 @@ err:
 
 static void hdmi_audio_disable(struct omap_dss_device *dssdev)
 {
-	hdmi_wp_audio_enable(&hdmi.ip_data.wp, false);
+	hdmi_wp_audio_enable(&hdmi.wp, false);
 }
 
 static int hdmi_audio_start(struct omap_dss_device *dssdev)
 {
-	return hdmi4_audio_start(&hdmi.ip_data.core, &hdmi.ip_data.wp);
+	return hdmi4_audio_start(&hdmi.core, &hdmi.wp);
 }
 
 static void hdmi_audio_stop(struct omap_dss_device *dssdev)
 {
-	hdmi4_audio_stop(&hdmi.ip_data.core, &hdmi.ip_data.wp);
+	hdmi4_audio_stop(&hdmi.core, &hdmi.wp);
 }
 
 static bool hdmi_audio_supported(struct omap_dss_device *dssdev)
@@ -942,7 +946,7 @@ static int hdmi_audio_config(struct omap_dss_device *dssdev,
 		goto err;
 	}
 
-	r = hdmi4_audio_config(&hdmi.ip_data.core, &hdmi.ip_data.wp, audio);
+	r = hdmi4_audio_config(&hdmi.core, &hdmi.wp, audio);
 	if (r)
 		goto err;
 
@@ -1035,21 +1039,20 @@ static int omapdss_hdmihw_probe(struct platform_device *pdev)
 	hdmi.pdev = pdev;
 
 	mutex_init(&hdmi.lock);
-	mutex_init(&hdmi.ip_data.lock);
 
-	r = hdmi_wp_init(pdev, &hdmi.ip_data.wp);
+	r = hdmi_wp_init(pdev, &hdmi.wp);
 	if (r)
 		return r;
 
-	r = hdmi_pll_init(pdev, &hdmi.ip_data.pll);
+	r = hdmi_pll_init(pdev, &hdmi.pll);
 	if (r)
 		return r;
 
-	r = hdmi_phy_init(pdev, &hdmi.ip_data.phy);
+	r = hdmi_phy_init(pdev, &hdmi.phy);
 	if (r)
 		return r;
 
-	r = hdmi4_core_init(pdev, &hdmi.ip_data.core);
+	r = hdmi4_core_init(pdev, &hdmi.core);
 	if (r)
 		return r;
 
diff --git a/drivers/video/omap2/dss/ti_hdmi.h b/drivers/video/omap2/dss/ti_hdmi.h
index 9eb9b321314d..107a6061a800 100644
--- a/drivers/video/omap2/dss/ti_hdmi.h
+++ b/drivers/video/omap2/dss/ti_hdmi.h
@@ -23,8 +23,6 @@
 
 #include <linux/platform_device.h>
 
-struct hdmi_ip_data;
-
 enum hdmi_pll_pwr {
 	HDMI_PLLPWRCMD_ALLOFF = 0,
 	HDMI_PLLPWRCMD_PLLONLY = 1,
@@ -208,18 +206,6 @@ struct hdmi_core_data {
 	struct hdmi_core_infoframe_avi avi_cfg;
 };
 
-struct hdmi_ip_data {
-	struct hdmi_wp_data	wp;
-	struct hdmi_pll_data	pll;
-	struct hdmi_phy_data	phy;
-	struct hdmi_core_data	core;
-
-	struct hdmi_config cfg;
-
-	/* ti_hdmi_4xxx_ip private data. These should be in a separate struct */
-	struct mutex lock;
-};
-
 /* HDMI wrapper funcs */
 int hdmi_wp_video_start(struct hdmi_wp_data *wp);
 void hdmi_wp_video_stop(struct hdmi_wp_data *wp);
-- 
cgit 


From bdb8bfc652543dc392caa66343fe32cf66c4095b Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Thu, 12 Sep 2013 18:07:49 +0530
Subject: omapdss: HDMI: Clean up the header files

Keep only OMAP4 HDMI core block related structs and enums in ti_hdmi_4xxx_ip.h,
move the rest to ti_hdmi.h. This holds all library specific data which will be
shared between OMAP4 and OMAP5/DRA7x HDMI encoder drivers.

Move the duplicate register read/write/wait_for_bit_change functions in the hdmi
library files to ti_hdmi.h

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/hdmi_phy.c        |  31 ------
 drivers/video/omap2/dss/hdmi_pll.c        |  31 ------
 drivers/video/omap2/dss/hdmi_wp.c         |  31 ------
 drivers/video/omap2/dss/ti_hdmi.h         | 170 ++++++++++++++++++++++++++++++
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c |  31 ------
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h | 141 +------------------------
 6 files changed, 171 insertions(+), 264 deletions(-)

diff --git a/drivers/video/omap2/dss/hdmi_phy.c b/drivers/video/omap2/dss/hdmi_phy.c
index 48bdba8d7031..29f7552b4b9a 100644
--- a/drivers/video/omap2/dss/hdmi_phy.c
+++ b/drivers/video/omap2/dss/hdmi_phy.c
@@ -9,7 +9,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/io.h>
 #include <linux/platform_device.h>
@@ -17,40 +16,10 @@
 
 #include "dss.h"
 #include "ti_hdmi.h"
-#include "ti_hdmi_4xxx_ip.h"
 
 #define HDMI_IRQ_LINK_CONNECT		(1 << 25)
 #define HDMI_IRQ_LINK_DISCONNECT	(1 << 26)
 
-static inline void hdmi_write_reg(void __iomem *base_addr, const u16 idx,
-		u32 val)
-{
-	__raw_writel(val, base_addr + idx);
-}
-
-static inline u32 hdmi_read_reg(void __iomem *base_addr, const u16 idx)
-{
-	return __raw_readl(base_addr + idx);
-}
-
-#define REG_FLD_MOD(base, idx, val, start, end) \
-	hdmi_write_reg(base, idx, FLD_MOD(hdmi_read_reg(base, idx),\
-							val, start, end))
-#define REG_GET(base, idx, start, end) \
-	FLD_GET(hdmi_read_reg(base, idx), start, end)
-
-static inline int hdmi_wait_for_bit_change(void __iomem *base_addr,
-		const u16 idx, int b2, int b1, u32 val)
-{
-	u32 t = 0;
-	while (val != REG_GET(base_addr, idx, b2, b1)) {
-		udelay(1);
-		if (t++ > 10000)
-			return !val;
-	}
-	return val;
-}
-
 void hdmi_phy_dump(struct hdmi_phy_data *phy, struct seq_file *s)
 {
 #define DUMPPHY(r) seq_printf(s, "%-35s %08x\n", #r,\
diff --git a/drivers/video/omap2/dss/hdmi_pll.c b/drivers/video/omap2/dss/hdmi_pll.c
index e12fa6ada58f..6e187e63daae 100644
--- a/drivers/video/omap2/dss/hdmi_pll.c
+++ b/drivers/video/omap2/dss/hdmi_pll.c
@@ -10,7 +10,6 @@
 
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/io.h>
 #include <linux/platform_device.h>
@@ -18,40 +17,10 @@
 
 #include "dss.h"
 #include "ti_hdmi.h"
-#include "ti_hdmi_4xxx_ip.h"
 
 #define HDMI_DEFAULT_REGN 16
 #define HDMI_DEFAULT_REGM2 1
 
-static inline void hdmi_write_reg(void __iomem *base_addr, const u16 idx,
-		u32 val)
-{
-	__raw_writel(val, base_addr + idx);
-}
-
-static inline u32 hdmi_read_reg(void __iomem *base_addr, const u16 idx)
-{
-	return __raw_readl(base_addr + idx);
-}
-
-#define REG_FLD_MOD(base, idx, val, start, end) \
-	hdmi_write_reg(base, idx, FLD_MOD(hdmi_read_reg(base, idx),\
-							val, start, end))
-#define REG_GET(base, idx, start, end) \
-	FLD_GET(hdmi_read_reg(base, idx), start, end)
-
-static inline int hdmi_wait_for_bit_change(void __iomem *base_addr,
-		const u16 idx, int b2, int b1, u32 val)
-{
-	u32 t = 0;
-	while (val != REG_GET(base_addr, idx, b2, b1)) {
-		udelay(1);
-		if (t++ > 10000)
-			return !val;
-	}
-	return val;
-}
-
 void hdmi_pll_dump(struct hdmi_pll_data *pll, struct seq_file *s)
 {
 #define DUMPPLL(r) seq_printf(s, "%-35s %08x\n", #r,\
diff --git a/drivers/video/omap2/dss/hdmi_wp.c b/drivers/video/omap2/dss/hdmi_wp.c
index 1b6dbe1095a7..93039ea970f0 100644
--- a/drivers/video/omap2/dss/hdmi_wp.c
+++ b/drivers/video/omap2/dss/hdmi_wp.c
@@ -9,7 +9,6 @@
  */
 
 #include <linux/kernel.h>
-#include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/io.h>
 #include <linux/platform_device.h>
@@ -17,36 +16,6 @@
 
 #include "dss.h"
 #include "ti_hdmi.h"
-#include "ti_hdmi_4xxx_ip.h"
-
-static inline void hdmi_write_reg(void __iomem *base_addr, const u16 idx,
-		u32 val)
-{
-	__raw_writel(val, base_addr + idx);
-}
-
-static inline u32 hdmi_read_reg(void __iomem *base_addr, const u16 idx)
-{
-	return __raw_readl(base_addr + idx);
-}
-
-#define REG_FLD_MOD(base, idx, val, start, end) \
-	hdmi_write_reg(base, idx, FLD_MOD(hdmi_read_reg(base, idx),\
-							val, start, end))
-#define REG_GET(base, idx, start, end) \
-	FLD_GET(hdmi_read_reg(base, idx), start, end)
-
-static inline int hdmi_wait_for_bit_change(void __iomem *base_addr,
-		const u16 idx, int b2, int b1, u32 val)
-{
-	u32 t = 0;
-	while (val != REG_GET(base_addr, idx, b2, b1)) {
-		udelay(1);
-		if (t++ > 10000)
-			return !val;
-	}
-	return val;
-}
 
 void hdmi_wp_dump(struct hdmi_wp_data *wp, struct seq_file *s)
 {
diff --git a/drivers/video/omap2/dss/ti_hdmi.h b/drivers/video/omap2/dss/ti_hdmi.h
index 107a6061a800..cf096fdb9183 100644
--- a/drivers/video/omap2/dss/ti_hdmi.h
+++ b/drivers/video/omap2/dss/ti_hdmi.h
@@ -21,7 +21,52 @@
 #ifndef _TI_HDMI_H
 #define _TI_HDMI_H
 
+#include <linux/delay.h>
+#include <linux/io.h>
 #include <linux/platform_device.h>
+#include <video/omapdss.h>
+
+#include "dss.h"
+
+/* HDMI Wrapper */
+
+#define HDMI_WP_REVISION			0x0
+#define HDMI_WP_SYSCONFIG			0x10
+#define HDMI_WP_IRQSTATUS_RAW			0x24
+#define HDMI_WP_IRQSTATUS			0x28
+#define HDMI_WP_IRQENABLE_SET			0x2C
+#define HDMI_WP_IRQENABLE_CLR			0x30
+#define HDMI_WP_IRQWAKEEN			0x34
+#define HDMI_WP_PWR_CTRL			0x40
+#define HDMI_WP_DEBOUNCE			0x44
+#define HDMI_WP_VIDEO_CFG			0x50
+#define HDMI_WP_VIDEO_SIZE			0x60
+#define HDMI_WP_VIDEO_TIMING_H			0x68
+#define HDMI_WP_VIDEO_TIMING_V			0x6C
+#define HDMI_WP_WP_CLK				0x70
+#define HDMI_WP_AUDIO_CFG			0x80
+#define HDMI_WP_AUDIO_CFG2			0x84
+#define HDMI_WP_AUDIO_CTRL			0x88
+#define HDMI_WP_AUDIO_DATA			0x8C
+
+/* HDMI PLL */
+
+#define PLLCTRL_PLL_CONTROL			0x0
+#define PLLCTRL_PLL_STATUS			0x4
+#define PLLCTRL_PLL_GO				0x8
+#define PLLCTRL_CFG1				0xC
+#define PLLCTRL_CFG2				0x10
+#define PLLCTRL_CFG3				0x14
+#define PLLCTRL_SSC_CFG1			0x18
+#define PLLCTRL_SSC_CFG2			0x1C
+#define PLLCTRL_CFG4				0x20
+
+/* HDMI PHY */
+
+#define HDMI_TXPHY_TX_CTRL			0x0
+#define HDMI_TXPHY_DIGITAL_CTRL			0x4
+#define HDMI_TXPHY_POWER_CTRL			0x8
+#define HDMI_TXPHY_PAD_CFG_CTRL			0xC
 
 enum hdmi_pll_pwr {
 	HDMI_PLLPWRCMD_ALLOFF = 0,
@@ -98,6 +143,75 @@ enum hdmi_audio_blk_strt_end_sig {
 	HDMI_AUDIO_BLOCK_SIG_STARTEND_OFF = 1
 };
 
+enum hdmi_core_audio_layout {
+	HDMI_AUDIO_LAYOUT_2CH = 0,
+	HDMI_AUDIO_LAYOUT_8CH = 1
+};
+
+enum hdmi_core_cts_mode {
+	HDMI_AUDIO_CTS_MODE_HW = 0,
+	HDMI_AUDIO_CTS_MODE_SW = 1
+};
+
+enum hdmi_audio_mclk_mode {
+	HDMI_AUDIO_MCLK_128FS = 0,
+	HDMI_AUDIO_MCLK_256FS = 1,
+	HDMI_AUDIO_MCLK_384FS = 2,
+	HDMI_AUDIO_MCLK_512FS = 3,
+	HDMI_AUDIO_MCLK_768FS = 4,
+	HDMI_AUDIO_MCLK_1024FS = 5,
+	HDMI_AUDIO_MCLK_1152FS = 6,
+	HDMI_AUDIO_MCLK_192FS = 7
+};
+
+/* INFOFRAME_AVI_ and INFOFRAME_AUDIO_ definitions */
+enum hdmi_core_infoframe {
+	HDMI_INFOFRAME_AVI_DB1Y_RGB = 0,
+	HDMI_INFOFRAME_AVI_DB1Y_YUV422 = 1,
+	HDMI_INFOFRAME_AVI_DB1Y_YUV444 = 2,
+	HDMI_INFOFRAME_AVI_DB1A_ACTIVE_FORMAT_OFF = 0,
+	HDMI_INFOFRAME_AVI_DB1A_ACTIVE_FORMAT_ON =  1,
+	HDMI_INFOFRAME_AVI_DB1B_NO = 0,
+	HDMI_INFOFRAME_AVI_DB1B_VERT = 1,
+	HDMI_INFOFRAME_AVI_DB1B_HORI = 2,
+	HDMI_INFOFRAME_AVI_DB1B_VERTHORI = 3,
+	HDMI_INFOFRAME_AVI_DB1S_0 = 0,
+	HDMI_INFOFRAME_AVI_DB1S_1 = 1,
+	HDMI_INFOFRAME_AVI_DB1S_2 = 2,
+	HDMI_INFOFRAME_AVI_DB2C_NO = 0,
+	HDMI_INFOFRAME_AVI_DB2C_ITU601 = 1,
+	HDMI_INFOFRAME_AVI_DB2C_ITU709 = 2,
+	HDMI_INFOFRAME_AVI_DB2C_EC_EXTENDED = 3,
+	HDMI_INFOFRAME_AVI_DB2M_NO = 0,
+	HDMI_INFOFRAME_AVI_DB2M_43 = 1,
+	HDMI_INFOFRAME_AVI_DB2M_169 = 2,
+	HDMI_INFOFRAME_AVI_DB2R_SAME = 8,
+	HDMI_INFOFRAME_AVI_DB2R_43 = 9,
+	HDMI_INFOFRAME_AVI_DB2R_169 = 10,
+	HDMI_INFOFRAME_AVI_DB2R_149 = 11,
+	HDMI_INFOFRAME_AVI_DB3ITC_NO = 0,
+	HDMI_INFOFRAME_AVI_DB3ITC_YES = 1,
+	HDMI_INFOFRAME_AVI_DB3EC_XVYUV601 = 0,
+	HDMI_INFOFRAME_AVI_DB3EC_XVYUV709 = 1,
+	HDMI_INFOFRAME_AVI_DB3Q_DEFAULT = 0,
+	HDMI_INFOFRAME_AVI_DB3Q_LR = 1,
+	HDMI_INFOFRAME_AVI_DB3Q_FR = 2,
+	HDMI_INFOFRAME_AVI_DB3SC_NO = 0,
+	HDMI_INFOFRAME_AVI_DB3SC_HORI = 1,
+	HDMI_INFOFRAME_AVI_DB3SC_VERT = 2,
+	HDMI_INFOFRAME_AVI_DB3SC_HORIVERT = 3,
+	HDMI_INFOFRAME_AVI_DB5PR_NO = 0,
+	HDMI_INFOFRAME_AVI_DB5PR_2 = 1,
+	HDMI_INFOFRAME_AVI_DB5PR_3 = 2,
+	HDMI_INFOFRAME_AVI_DB5PR_4 = 3,
+	HDMI_INFOFRAME_AVI_DB5PR_5 = 4,
+	HDMI_INFOFRAME_AVI_DB5PR_6 = 5,
+	HDMI_INFOFRAME_AVI_DB5PR_7 = 6,
+	HDMI_INFOFRAME_AVI_DB5PR_8 = 7,
+	HDMI_INFOFRAME_AVI_DB5PR_9 = 8,
+	HDMI_INFOFRAME_AVI_DB5PR_10 = 9,
+};
+
 struct hdmi_cm {
 	int	code;
 	int	mode;
@@ -143,6 +257,33 @@ struct hdmi_audio_dma {
 	u16				fifo_threshold;
 };
 
+struct hdmi_core_audio_i2s_config {
+	u8 in_length_bits;
+	u8 justification;
+	u8 sck_edge_mode;
+	u8 vbit;
+	u8 direction;
+	u8 shift;
+	u8 active_sds;
+};
+
+struct hdmi_core_audio_config {
+	struct hdmi_core_audio_i2s_config	i2s_cfg;
+	struct snd_aes_iec958			*iec60958_cfg;
+	bool					fs_override;
+	u32					n;
+	u32					cts;
+	u32					aud_par_busclk;
+	enum hdmi_core_audio_layout		layout;
+	enum hdmi_core_cts_mode			cts_mode;
+	bool					use_mclk;
+	enum hdmi_audio_mclk_mode		mclk_mode;
+	bool					en_acr_pkt;
+	bool					en_dsd_audio;
+	bool					en_parallel_aud_input;
+	bool					en_spdif;
+};
+
 /*
  * Refer to section 8.2 in HDMI 1.3 specification for
  * details about infoframe databytes
@@ -206,6 +347,35 @@ struct hdmi_core_data {
 	struct hdmi_core_infoframe_avi avi_cfg;
 };
 
+static inline void hdmi_write_reg(void __iomem *base_addr, const u16 idx,
+		u32 val)
+{
+	__raw_writel(val, base_addr + idx);
+}
+
+static inline u32 hdmi_read_reg(void __iomem *base_addr, const u16 idx)
+{
+	return __raw_readl(base_addr + idx);
+}
+
+#define REG_FLD_MOD(base, idx, val, start, end) \
+	hdmi_write_reg(base, idx, FLD_MOD(hdmi_read_reg(base, idx),\
+							val, start, end))
+#define REG_GET(base, idx, start, end) \
+	FLD_GET(hdmi_read_reg(base, idx), start, end)
+
+static inline int hdmi_wait_for_bit_change(void __iomem *base_addr,
+		const u16 idx, int b2, int b1, u32 val)
+{
+	u32 t = 0;
+	while (val != REG_GET(base_addr, idx, b2, b1)) {
+		udelay(1);
+		if (t++ > 10000)
+			return !val;
+	}
+	return val;
+}
+
 /* HDMI wrapper funcs */
 int hdmi_wp_video_start(struct hdmi_wp_data *wp);
 void hdmi_wp_video_stop(struct hdmi_wp_data *wp);
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
index 4ac9e0af7ca6..93a99fd080af 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
@@ -35,41 +35,10 @@
 #endif
 
 #include "ti_hdmi_4xxx_ip.h"
-#include "dss.h"
 #include "dss_features.h"
 
 #define HDMI_CORE_AV		0x500
 
-static inline void hdmi_write_reg(void __iomem *base_addr,
-				const u16 idx, u32 val)
-{
-	__raw_writel(val, base_addr + idx);
-}
-
-static inline u32 hdmi_read_reg(void __iomem *base_addr,
-				const u16 idx)
-{
-	return __raw_readl(base_addr + idx);
-}
-
-#define REG_FLD_MOD(base, idx, val, start, end) \
-	hdmi_write_reg(base, idx, FLD_MOD(hdmi_read_reg(base, idx),\
-							val, start, end))
-#define REG_GET(base, idx, start, end) \
-	FLD_GET(hdmi_read_reg(base, idx), start, end)
-
-static inline int hdmi_wait_for_bit_change(void __iomem *base_addr,
-		const u16 idx, int b2, int b1, u32 val)
-{
-	u32 t = 0;
-	while (val != REG_GET(base_addr, idx, b2, b1)) {
-		udelay(1);
-		if (t++ > 10000)
-			return !val;
-	}
-	return val;
-}
-
 static inline void __iomem *hdmi_av_base(struct hdmi_core_data *core)
 {
 	return core->base + HDMI_CORE_AV;
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
index b9bb30004703..78319ff0b227 100644
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
+++ b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
@@ -21,32 +21,9 @@
 #ifndef _HDMI_TI_4xxx_H_
 #define _HDMI_TI_4xxx_H_
 
-#include <linux/string.h>
-#include <video/omapdss.h>
 #include "ti_hdmi.h"
 
-/* HDMI Wrapper */
-
-#define HDMI_WP_REVISION			0x0
-#define HDMI_WP_SYSCONFIG			0x10
-#define HDMI_WP_IRQSTATUS_RAW			0x24
-#define HDMI_WP_IRQSTATUS			0x28
-#define HDMI_WP_IRQENABLE_SET			0x2C
-#define HDMI_WP_IRQENABLE_CLR			0x30
-#define HDMI_WP_IRQWAKEEN			0x34
-#define HDMI_WP_PWR_CTRL			0x40
-#define HDMI_WP_DEBOUNCE			0x44
-#define HDMI_WP_VIDEO_CFG			0x50
-#define HDMI_WP_VIDEO_SIZE			0x60
-#define HDMI_WP_VIDEO_TIMING_H			0x68
-#define HDMI_WP_VIDEO_TIMING_V			0x6C
-#define HDMI_WP_WP_CLK				0x70
-#define HDMI_WP_AUDIO_CFG			0x80
-#define HDMI_WP_AUDIO_CFG2			0x84
-#define HDMI_WP_AUDIO_CTRL			0x88
-#define HDMI_WP_AUDIO_DATA			0x8C
-
-/* HDMI IP Core System */
+/* OMAP4 HDMI IP Core System */
 
 #define HDMI_CORE_SYS_VND_IDL			0x0
 #define HDMI_CORE_SYS_DEV_IDL			0x8
@@ -207,25 +184,6 @@
 #define HDMI_CORE_AV_GEN_DBYTE_NELEMS		31
 #define HDMI_CORE_AV_GEN2_DBYTE_NELEMS		31
 
-/* PLL */
-
-#define PLLCTRL_PLL_CONTROL			0x0
-#define PLLCTRL_PLL_STATUS			0x4
-#define PLLCTRL_PLL_GO				0x8
-#define PLLCTRL_CFG1				0xC
-#define PLLCTRL_CFG2				0x10
-#define PLLCTRL_CFG3				0x14
-#define PLLCTRL_SSC_CFG1			0x18
-#define PLLCTRL_SSC_CFG2			0x1C
-#define PLLCTRL_CFG4				0x20
-
-/* HDMI PHY */
-
-#define HDMI_TXPHY_TX_CTRL			0x0
-#define HDMI_TXPHY_DIGITAL_CTRL			0x4
-#define HDMI_TXPHY_POWER_CTRL			0x8
-#define HDMI_TXPHY_PAD_CFG_CTRL			0xC
-
 enum hdmi_core_inputbus_width {
 	HDMI_INPUT_8BIT = 0,
 	HDMI_INPUT_10BIT = 1,
@@ -268,64 +226,6 @@ enum hdmi_core_packet_ctrl {
 	HDMI_PACKETREPEATOFF = 0
 };
 
-/* INFOFRAME_AVI_ and INFOFRAME_AUDIO_ definitions */
-enum hdmi_core_infoframe {
-	HDMI_INFOFRAME_AVI_DB1Y_RGB = 0,
-	HDMI_INFOFRAME_AVI_DB1Y_YUV422 = 1,
-	HDMI_INFOFRAME_AVI_DB1Y_YUV444 = 2,
-	HDMI_INFOFRAME_AVI_DB1A_ACTIVE_FORMAT_OFF = 0,
-	HDMI_INFOFRAME_AVI_DB1A_ACTIVE_FORMAT_ON =  1,
-	HDMI_INFOFRAME_AVI_DB1B_NO = 0,
-	HDMI_INFOFRAME_AVI_DB1B_VERT = 1,
-	HDMI_INFOFRAME_AVI_DB1B_HORI = 2,
-	HDMI_INFOFRAME_AVI_DB1B_VERTHORI = 3,
-	HDMI_INFOFRAME_AVI_DB1S_0 = 0,
-	HDMI_INFOFRAME_AVI_DB1S_1 = 1,
-	HDMI_INFOFRAME_AVI_DB1S_2 = 2,
-	HDMI_INFOFRAME_AVI_DB2C_NO = 0,
-	HDMI_INFOFRAME_AVI_DB2C_ITU601 = 1,
-	HDMI_INFOFRAME_AVI_DB2C_ITU709 = 2,
-	HDMI_INFOFRAME_AVI_DB2C_EC_EXTENDED = 3,
-	HDMI_INFOFRAME_AVI_DB2M_NO = 0,
-	HDMI_INFOFRAME_AVI_DB2M_43 = 1,
-	HDMI_INFOFRAME_AVI_DB2M_169 = 2,
-	HDMI_INFOFRAME_AVI_DB2R_SAME = 8,
-	HDMI_INFOFRAME_AVI_DB2R_43 = 9,
-	HDMI_INFOFRAME_AVI_DB2R_169 = 10,
-	HDMI_INFOFRAME_AVI_DB2R_149 = 11,
-	HDMI_INFOFRAME_AVI_DB3ITC_NO = 0,
-	HDMI_INFOFRAME_AVI_DB3ITC_YES = 1,
-	HDMI_INFOFRAME_AVI_DB3EC_XVYUV601 = 0,
-	HDMI_INFOFRAME_AVI_DB3EC_XVYUV709 = 1,
-	HDMI_INFOFRAME_AVI_DB3Q_DEFAULT = 0,
-	HDMI_INFOFRAME_AVI_DB3Q_LR = 1,
-	HDMI_INFOFRAME_AVI_DB3Q_FR = 2,
-	HDMI_INFOFRAME_AVI_DB3SC_NO = 0,
-	HDMI_INFOFRAME_AVI_DB3SC_HORI = 1,
-	HDMI_INFOFRAME_AVI_DB3SC_VERT = 2,
-	HDMI_INFOFRAME_AVI_DB3SC_HORIVERT = 3,
-	HDMI_INFOFRAME_AVI_DB5PR_NO = 0,
-	HDMI_INFOFRAME_AVI_DB5PR_2 = 1,
-	HDMI_INFOFRAME_AVI_DB5PR_3 = 2,
-	HDMI_INFOFRAME_AVI_DB5PR_4 = 3,
-	HDMI_INFOFRAME_AVI_DB5PR_5 = 4,
-	HDMI_INFOFRAME_AVI_DB5PR_6 = 5,
-	HDMI_INFOFRAME_AVI_DB5PR_7 = 6,
-	HDMI_INFOFRAME_AVI_DB5PR_8 = 7,
-	HDMI_INFOFRAME_AVI_DB5PR_9 = 8,
-	HDMI_INFOFRAME_AVI_DB5PR_10 = 9,
-};
-
-enum hdmi_core_audio_layout {
-	HDMI_AUDIO_LAYOUT_2CH = 0,
-	HDMI_AUDIO_LAYOUT_8CH = 1
-};
-
-enum hdmi_core_cts_mode {
-	HDMI_AUDIO_CTS_MODE_HW = 0,
-	HDMI_AUDIO_CTS_MODE_SW = 1
-};
-
 enum hdmi_audio_i2s_config {
 	HDMI_AUDIO_I2S_MSB_SHIFTED_FIRST = 0,
 	HDMI_AUDIO_I2S_LSB_SHIFTED_FIRST = 1,
@@ -341,17 +241,6 @@ enum hdmi_audio_i2s_config {
 	HDMI_AUDIO_I2S_SD3_EN = 1 << 3,
 };
 
-enum hdmi_audio_mclk_mode {
-	HDMI_AUDIO_MCLK_128FS = 0,
-	HDMI_AUDIO_MCLK_256FS = 1,
-	HDMI_AUDIO_MCLK_384FS = 2,
-	HDMI_AUDIO_MCLK_512FS = 3,
-	HDMI_AUDIO_MCLK_768FS = 4,
-	HDMI_AUDIO_MCLK_1024FS = 5,
-	HDMI_AUDIO_MCLK_1152FS = 6,
-	HDMI_AUDIO_MCLK_192FS = 7
-};
-
 struct hdmi_core_video_config {
 	enum hdmi_core_inputbus_width	ip_bus_width;
 	enum hdmi_core_dither_trunc	op_dither_truc;
@@ -372,34 +261,6 @@ struct hdmi_core_packet_enable_repeat {
 	u32	generic_pkt_repeat;
 };
 
-
-struct hdmi_core_audio_i2s_config {
-	u8 in_length_bits;
-	u8 justification;
-	u8 sck_edge_mode;
-	u8 vbit;
-	u8 direction;
-	u8 shift;
-	u8 active_sds;
-};
-
-struct hdmi_core_audio_config {
-	struct hdmi_core_audio_i2s_config	i2s_cfg;
-	struct snd_aes_iec958			*iec60958_cfg;
-	bool					fs_override;
-	u32					n;
-	u32					cts;
-	u32					aud_par_busclk;
-	enum hdmi_core_audio_layout		layout;
-	enum hdmi_core_cts_mode			cts_mode;
-	bool					use_mclk;
-	enum hdmi_audio_mclk_mode		mclk_mode;
-	bool					en_acr_pkt;
-	bool					en_dsd_audio;
-	bool					en_parallel_aud_input;
-	bool					en_spdif;
-};
-
 int hdmi4_read_edid(struct hdmi_core_data *core, u8 *edid, int len);
 void hdmi4_configure(struct hdmi_core_data *core, struct hdmi_wp_data *wp,
 		struct hdmi_config *cfg);
-- 
cgit 


From 8696131fadda03c4c9bc12496c3e4c1001ebf8a8 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Tue, 10 Sep 2013 16:34:02 +0530
Subject: omapdss: HDMI: add HDMI wrapper IRQ flags

Add flags for the interrupts present in HDMI wrapper block, these will be used
to configure HDMI_IRQENABLE_SET/CLEAR and HDMI_IRQSTATUS registers.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/hdmi_phy.c |  3 ---
 drivers/video/omap2/dss/ti_hdmi.h  | 15 +++++++++++++++
 2 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/drivers/video/omap2/dss/hdmi_phy.c b/drivers/video/omap2/dss/hdmi_phy.c
index 29f7552b4b9a..16feaa80b3b4 100644
--- a/drivers/video/omap2/dss/hdmi_phy.c
+++ b/drivers/video/omap2/dss/hdmi_phy.c
@@ -17,9 +17,6 @@
 #include "dss.h"
 #include "ti_hdmi.h"
 
-#define HDMI_IRQ_LINK_CONNECT		(1 << 25)
-#define HDMI_IRQ_LINK_DISCONNECT	(1 << 26)
-
 void hdmi_phy_dump(struct hdmi_phy_data *phy, struct seq_file *s)
 {
 #define DUMPPHY(r) seq_printf(s, "%-35s %08x\n", #r,\
diff --git a/drivers/video/omap2/dss/ti_hdmi.h b/drivers/video/omap2/dss/ti_hdmi.h
index cf096fdb9183..5034080ccfa9 100644
--- a/drivers/video/omap2/dss/ti_hdmi.h
+++ b/drivers/video/omap2/dss/ti_hdmi.h
@@ -49,6 +49,21 @@
 #define HDMI_WP_AUDIO_CTRL			0x88
 #define HDMI_WP_AUDIO_DATA			0x8C
 
+/* HDMI WP IRQ flags */
+
+#define HDMI_IRQ_OCP_TIMEOUT			(1 << 4)
+#define HDMI_IRQ_AUDIO_FIFO_UNDERFLOW		(1 << 8)
+#define HDMI_IRQ_AUDIO_FIFO_OVERFLOW		(1 << 9)
+#define HDMI_IRQ_AUDIO_FIFO_SAMPLE_REQ		(1 << 10)
+#define HDMI_IRQ_VIDEO_VSYNC			(1 << 16)
+#define HDMI_IRQ_VIDEO_FRAME_DONE		(1 << 17)
+#define HDMI_IRQ_PHY_LINE5V_ASSERT		(1 << 24)
+#define HDMI_IRQ_LINK_CONNECT			(1 << 25)
+#define HDMI_IRQ_LINK_DISCONNECT		(1 << 26)
+#define HDMI_IRQ_PLL_LOCK			(1 << 29)
+#define HDMI_IRQ_PLL_UNLOCK			(1 << 30)
+#define HDMI_IRQ_PLL_RECAL			(1 << 31)
+
 /* HDMI PLL */
 
 #define PLLCTRL_PLL_CONTROL			0x0
-- 
cgit 


From ef26958a0c44b503ee39b2319e240be36bb34415 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Thu, 12 Sep 2013 17:45:57 +0530
Subject: omapdss: HDMI: Rename hdmi driver files to nicer names

Replace the ti_hdmi_4xxx* notation for OMAP4 HDMI driver with hdmi4. Rename
the hdmi.c encoder driver to hdmi4.c. Rename ti_hdmi.h to hdmi.h

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/Makefile          |    4 +-
 drivers/video/omap2/dss/core.c            |    4 +-
 drivers/video/omap2/dss/dss.h             |    4 +-
 drivers/video/omap2/dss/hdmi.c            | 1128 -----------------------------
 drivers/video/omap2/dss/hdmi.h            |  435 +++++++++++
 drivers/video/omap2/dss/hdmi4.c           | 1124 ++++++++++++++++++++++++++++
 drivers/video/omap2/dss/hdmi4_core.c      | 1034 ++++++++++++++++++++++++++
 drivers/video/omap2/dss/hdmi4_core.h      |  276 +++++++
 drivers/video/omap2/dss/hdmi_phy.c        |    2 +-
 drivers/video/omap2/dss/hdmi_pll.c        |    2 +-
 drivers/video/omap2/dss/hdmi_wp.c         |    2 +-
 drivers/video/omap2/dss/ti_hdmi.h         |  437 -----------
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c | 1034 --------------------------
 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h |  278 -------
 14 files changed, 2878 insertions(+), 2886 deletions(-)
 delete mode 100644 drivers/video/omap2/dss/hdmi.c
 create mode 100644 drivers/video/omap2/dss/hdmi.h
 create mode 100644 drivers/video/omap2/dss/hdmi4.c
 create mode 100644 drivers/video/omap2/dss/hdmi4_core.c
 create mode 100644 drivers/video/omap2/dss/hdmi4_core.h
 delete mode 100644 drivers/video/omap2/dss/ti_hdmi.h
 delete mode 100644 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
 delete mode 100644 drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h

diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile
index d88e93870e15..f87ca3216a1f 100644
--- a/drivers/video/omap2/dss/Makefile
+++ b/drivers/video/omap2/dss/Makefile
@@ -10,6 +10,6 @@ omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o
 omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o
 omapdss-$(CONFIG_OMAP2_DSS_SDI) += sdi.o
 omapdss-$(CONFIG_OMAP2_DSS_DSI) += dsi.o
-omapdss-$(CONFIG_OMAP4_DSS_HDMI) += hdmi.o hdmi_wp.o hdmi_pll.o hdmi_phy.o \
-	ti_hdmi_4xxx_ip.o
+omapdss-$(CONFIG_OMAP4_DSS_HDMI) += hdmi4.o hdmi_wp.o hdmi_pll.o hdmi_phy.o \
+	hdmi4_core.o
 ccflags-$(CONFIG_OMAP2_DSS_DEBUG) += -DDEBUG
diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c
index 60d3958d04f7..ffa45c894cd4 100644
--- a/drivers/video/omap2/dss/core.c
+++ b/drivers/video/omap2/dss/core.c
@@ -266,7 +266,7 @@ static int (*dss_output_drv_reg_funcs[])(void) __initdata = {
 	venc_init_platform_driver,
 #endif
 #ifdef CONFIG_OMAP4_DSS_HDMI
-	hdmi_init_platform_driver,
+	hdmi4_init_platform_driver,
 #endif
 };
 
@@ -287,7 +287,7 @@ static void (*dss_output_drv_unreg_funcs[])(void) __exitdata = {
 	venc_uninit_platform_driver,
 #endif
 #ifdef CONFIG_OMAP4_DSS_HDMI
-	hdmi_uninit_platform_driver,
+	hdmi4_uninit_platform_driver,
 #endif
 };
 
diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h
index e172531d196b..f538e867c0f8 100644
--- a/drivers/video/omap2/dss/dss.h
+++ b/drivers/video/omap2/dss/dss.h
@@ -427,8 +427,8 @@ int venc_init_platform_driver(void) __init;
 void venc_uninit_platform_driver(void) __exit;
 
 /* HDMI */
-int hdmi_init_platform_driver(void) __init;
-void hdmi_uninit_platform_driver(void) __exit;
+int hdmi4_init_platform_driver(void) __init;
+void hdmi4_uninit_platform_driver(void) __exit;
 
 /* RFBI */
 int rfbi_init_platform_driver(void) __init;
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
deleted file mode 100644
index f03d6c7530e4..000000000000
--- a/drivers/video/omap2/dss/hdmi.c
+++ /dev/null
@@ -1,1128 +0,0 @@
-/*
- * hdmi.c
- *
- * HDMI interface DSS driver setting for TI's OMAP4 family of processor.
- * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com/
- * Authors: Yong Zhi
- *	Mythri pk <mythripk@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#define DSS_SUBSYS_NAME "HDMI"
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/interrupt.h>
-#include <linux/mutex.h>
-#include <linux/delay.h>
-#include <linux/string.h>
-#include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
-#include <linux/clk.h>
-#include <linux/gpio.h>
-#include <linux/regulator/consumer.h>
-#include <video/omapdss.h>
-
-#include "ti_hdmi.h"
-#include "ti_hdmi_4xxx_ip.h"
-#include "dss.h"
-#include "dss_features.h"
-
-/* HDMI EDID Length move this */
-#define HDMI_EDID_MAX_LENGTH			256
-#define EDID_TIMING_DESCRIPTOR_SIZE		0x12
-#define EDID_DESCRIPTOR_BLOCK0_ADDRESS		0x36
-#define EDID_DESCRIPTOR_BLOCK1_ADDRESS		0x80
-#define EDID_SIZE_BLOCK0_TIMING_DESCRIPTOR	4
-#define EDID_SIZE_BLOCK1_TIMING_DESCRIPTOR	4
-
-static struct {
-	struct mutex lock;
-	struct platform_device *pdev;
-
-	struct hdmi_wp_data	wp;
-	struct hdmi_pll_data	pll;
-	struct hdmi_phy_data	phy;
-	struct hdmi_core_data	core;
-
-	struct hdmi_config cfg;
-
-	struct clk *sys_clk;
-	struct regulator *vdda_hdmi_dac_reg;
-
-	bool core_enabled;
-
-	struct omap_dss_device output;
-} hdmi;
-
-/*
- * Logic for the below structure :
- * user enters the CEA or VESA timings by specifying the HDMI/DVI code.
- * There is a correspondence between CEA/VESA timing and code, please
- * refer to section 6.3 in HDMI 1.3 specification for timing code.
- *
- * In the below structure, cea_vesa_timings corresponds to all OMAP4
- * supported CEA and VESA timing values.code_cea corresponds to the CEA
- * code, It is used to get the timing from cea_vesa_timing array.Similarly
- * with code_vesa. Code_index is used for back mapping, that is once EDID
- * is read from the TV, EDID is parsed to find the timing values and then
- * map it to corresponding CEA or VESA index.
- */
-
-static const struct hdmi_config cea_timings[] = {
-	{
-		{ 640, 480, 25200, 96, 16, 48, 2, 10, 33,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 1, HDMI_HDMI },
-	},
-	{
-		{ 720, 480, 27027, 62, 16, 60, 6, 9, 30,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 2, HDMI_HDMI },
-	},
-	{
-		{ 1280, 720, 74250, 40, 110, 220, 5, 5, 20,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 4, HDMI_HDMI },
-	},
-	{
-		{ 1920, 540, 74250, 44, 88, 148, 5, 2, 15,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			true, },
-		{ 5, HDMI_HDMI },
-	},
-	{
-		{ 1440, 240, 27027, 124, 38, 114, 3, 4, 15,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
-			true, },
-		{ 6, HDMI_HDMI },
-	},
-	{
-		{ 1920, 1080, 148500, 44, 88, 148, 5, 4, 36,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 16, HDMI_HDMI },
-	},
-	{
-		{ 720, 576, 27000, 64, 12, 68, 5, 5, 39,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 17, HDMI_HDMI },
-	},
-	{
-		{ 1280, 720, 74250, 40, 440, 220, 5, 5, 20,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 19, HDMI_HDMI },
-	},
-	{
-		{ 1920, 540, 74250, 44, 528, 148, 5, 2, 15,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			true, },
-		{ 20, HDMI_HDMI },
-	},
-	{
-		{ 1440, 288, 27000, 126, 24, 138, 3, 2, 19,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
-			true, },
-		{ 21, HDMI_HDMI },
-	},
-	{
-		{ 1440, 576, 54000, 128, 24, 136, 5, 5, 39,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 29, HDMI_HDMI },
-	},
-	{
-		{ 1920, 1080, 148500, 44, 528, 148, 5, 4, 36,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 31, HDMI_HDMI },
-	},
-	{
-		{ 1920, 1080, 74250, 44, 638, 148, 5, 4, 36,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 32, HDMI_HDMI },
-	},
-	{
-		{ 2880, 480, 108108, 248, 64, 240, 6, 9, 30,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 35, HDMI_HDMI },
-	},
-	{
-		{ 2880, 576, 108000, 256, 48, 272, 5, 5, 39,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 37, HDMI_HDMI },
-	},
-};
-
-static const struct hdmi_config vesa_timings[] = {
-/* VESA From Here */
-	{
-		{ 640, 480, 25175, 96, 16, 48, 2, 11, 31,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 4, HDMI_DVI },
-	},
-	{
-		{ 800, 600, 40000, 128, 40, 88, 4, 1, 23,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 9, HDMI_DVI },
-	},
-	{
-		{ 848, 480, 33750, 112, 16, 112, 8, 6, 23,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0xE, HDMI_DVI },
-	},
-	{
-		{ 1280, 768, 79500, 128, 64, 192, 7, 3, 20,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 0x17, HDMI_DVI },
-	},
-	{
-		{ 1280, 800, 83500, 128, 72, 200, 6, 3, 22,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 0x1C, HDMI_DVI },
-	},
-	{
-		{ 1360, 768, 85500, 112, 64, 256, 6, 3, 18,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x27, HDMI_DVI },
-	},
-	{
-		{ 1280, 960, 108000, 112, 96, 312, 3, 1, 36,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x20, HDMI_DVI },
-	},
-	{
-		{ 1280, 1024, 108000, 112, 48, 248, 3, 1, 38,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x23, HDMI_DVI },
-	},
-	{
-		{ 1024, 768, 65000, 136, 24, 160, 6, 3, 29,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 0x10, HDMI_DVI },
-	},
-	{
-		{ 1400, 1050, 121750, 144, 88, 232, 4, 3, 32,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 0x2A, HDMI_DVI },
-	},
-	{
-		{ 1440, 900, 106500, 152, 80, 232, 6, 3, 25,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 0x2F, HDMI_DVI },
-	},
-	{
-		{ 1680, 1050, 146250, 176 , 104, 280, 6, 3, 30,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 0x3A, HDMI_DVI },
-	},
-	{
-		{ 1366, 768, 85500, 143, 70, 213, 3, 3, 24,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x51, HDMI_DVI },
-	},
-	{
-		{ 1920, 1080, 148500, 44, 148, 80, 5, 4, 36,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x52, HDMI_DVI },
-	},
-	{
-		{ 1280, 768, 68250, 32, 48, 80, 7, 3, 12,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x16, HDMI_DVI },
-	},
-	{
-		{ 1400, 1050, 101000, 32, 48, 80, 4, 3, 23,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x29, HDMI_DVI },
-	},
-	{
-		{ 1680, 1050, 119000, 32, 48, 80, 6, 3, 21,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x39, HDMI_DVI },
-	},
-	{
-		{ 1280, 800, 79500, 32, 48, 80, 6, 3, 14,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x1B, HDMI_DVI },
-	},
-	{
-		{ 1280, 720, 74250, 40, 110, 220, 5, 5, 20,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x55, HDMI_DVI },
-	},
-	{
-		{ 1920, 1200, 154000, 32, 48, 80, 6, 3, 26,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x44, HDMI_DVI },
-	},
-};
-
-static int hdmi_runtime_get(void)
-{
-	int r;
-
-	DSSDBG("hdmi_runtime_get\n");
-
-	r = pm_runtime_get_sync(&hdmi.pdev->dev);
-	WARN_ON(r < 0);
-	if (r < 0)
-		return r;
-
-	return 0;
-}
-
-static void hdmi_runtime_put(void)
-{
-	int r;
-
-	DSSDBG("hdmi_runtime_put\n");
-
-	r = pm_runtime_put_sync(&hdmi.pdev->dev);
-	WARN_ON(r < 0 && r != -ENOSYS);
-}
-
-static int hdmi_init_regulator(void)
-{
-	struct regulator *reg;
-
-	if (hdmi.vdda_hdmi_dac_reg != NULL)
-		return 0;
-
-	reg = devm_regulator_get(&hdmi.pdev->dev, "vdda_hdmi_dac");
-
-	/* DT HACK: try VDAC to make omapdss work for o4 sdp/panda */
-	if (IS_ERR(reg))
-		reg = devm_regulator_get(&hdmi.pdev->dev, "VDAC");
-
-	if (IS_ERR(reg)) {
-		DSSERR("can't get VDDA_HDMI_DAC regulator\n");
-		return PTR_ERR(reg);
-	}
-
-	hdmi.vdda_hdmi_dac_reg = reg;
-
-	return 0;
-}
-
-static const struct hdmi_config *hdmi_find_timing(
-					const struct hdmi_config *timings_arr,
-					int len)
-{
-	int i;
-
-	for (i = 0; i < len; i++) {
-		if (timings_arr[i].cm.code == hdmi.cfg.cm.code)
-			return &timings_arr[i];
-	}
-	return NULL;
-}
-
-static const struct hdmi_config *hdmi_get_timings(void)
-{
-       const struct hdmi_config *arr;
-       int len;
-
-	if (hdmi.cfg.cm.mode == HDMI_DVI) {
-		arr = vesa_timings;
-		len = ARRAY_SIZE(vesa_timings);
-	} else {
-		arr = cea_timings;
-		len = ARRAY_SIZE(cea_timings);
-	}
-
-	return hdmi_find_timing(arr, len);
-}
-
-static bool hdmi_timings_compare(struct omap_video_timings *timing1,
-				const struct omap_video_timings *timing2)
-{
-	int timing1_vsync, timing1_hsync, timing2_vsync, timing2_hsync;
-
-	if ((DIV_ROUND_CLOSEST(timing2->pixel_clock, 1000) ==
-			DIV_ROUND_CLOSEST(timing1->pixel_clock, 1000)) &&
-		(timing2->x_res == timing1->x_res) &&
-		(timing2->y_res == timing1->y_res)) {
-
-		timing2_hsync = timing2->hfp + timing2->hsw + timing2->hbp;
-		timing1_hsync = timing1->hfp + timing1->hsw + timing1->hbp;
-		timing2_vsync = timing2->vfp + timing2->vsw + timing2->vbp;
-		timing1_vsync = timing2->vfp + timing2->vsw + timing2->vbp;
-
-		DSSDBG("timing1_hsync = %d timing1_vsync = %d"\
-			"timing2_hsync = %d timing2_vsync = %d\n",
-			timing1_hsync, timing1_vsync,
-			timing2_hsync, timing2_vsync);
-
-		if ((timing1_hsync == timing2_hsync) &&
-			(timing1_vsync == timing2_vsync)) {
-			return true;
-		}
-	}
-	return false;
-}
-
-static struct hdmi_cm hdmi_get_code(struct omap_video_timings *timing)
-{
-	int i;
-	struct hdmi_cm cm = {-1};
-	DSSDBG("hdmi_get_code\n");
-
-	for (i = 0; i < ARRAY_SIZE(cea_timings); i++) {
-		if (hdmi_timings_compare(timing, &cea_timings[i].timings)) {
-			cm = cea_timings[i].cm;
-			goto end;
-		}
-	}
-	for (i = 0; i < ARRAY_SIZE(vesa_timings); i++) {
-		if (hdmi_timings_compare(timing, &vesa_timings[i].timings)) {
-			cm = vesa_timings[i].cm;
-			goto end;
-		}
-	}
-
-end:	return cm;
-
-}
-
-static int hdmi_power_on_core(struct omap_dss_device *dssdev)
-{
-	int r;
-
-	r = regulator_enable(hdmi.vdda_hdmi_dac_reg);
-	if (r)
-		return r;
-
-	r = hdmi_runtime_get();
-	if (r)
-		goto err_runtime_get;
-
-	/* Make selection of HDMI in DSS */
-	dss_select_hdmi_venc_clk_source(DSS_HDMI_M_PCLK);
-
-	hdmi.core_enabled = true;
-
-	return 0;
-
-err_runtime_get:
-	regulator_disable(hdmi.vdda_hdmi_dac_reg);
-
-	return r;
-}
-
-static void hdmi_power_off_core(struct omap_dss_device *dssdev)
-{
-	hdmi.core_enabled = false;
-
-	hdmi_runtime_put();
-	regulator_disable(hdmi.vdda_hdmi_dac_reg);
-}
-
-static int hdmi_power_on_full(struct omap_dss_device *dssdev)
-{
-	int r;
-	struct omap_video_timings *p;
-	struct omap_overlay_manager *mgr = hdmi.output.manager;
-	unsigned long phy;
-
-	r = hdmi_power_on_core(dssdev);
-	if (r)
-		return r;
-
-	dss_mgr_disable(mgr);
-
-	p = &hdmi.cfg.timings;
-
-	DSSDBG("hdmi_power_on x_res= %d y_res = %d\n", p->x_res, p->y_res);
-
-	phy = p->pixel_clock;
-
-	hdmi_pll_compute(&hdmi.pll, clk_get_rate(hdmi.sys_clk), phy);
-
-	hdmi_wp_video_stop(&hdmi.wp);
-
-	/* config the PLL and PHY hdmi_set_pll_pwrfirst */
-	r = hdmi_pll_enable(&hdmi.pll, &hdmi.wp);
-	if (r) {
-		DSSDBG("Failed to lock PLL\n");
-		goto err_pll_enable;
-	}
-
-	r = hdmi_phy_enable(&hdmi.phy, &hdmi.wp, &hdmi.cfg);
-	if (r) {
-		DSSDBG("Failed to start PHY\n");
-		goto err_phy_enable;
-	}
-
-	hdmi4_configure(&hdmi.core, &hdmi.wp, &hdmi.cfg);
-
-	/* bypass TV gamma table */
-	dispc_enable_gamma_table(0);
-
-	/* tv size */
-	dss_mgr_set_timings(mgr, p);
-
-	r = hdmi_wp_video_start(&hdmi.wp);
-	if (r)
-		goto err_vid_enable;
-
-	r = dss_mgr_enable(mgr);
-	if (r)
-		goto err_mgr_enable;
-
-	return 0;
-
-err_mgr_enable:
-	hdmi_wp_video_stop(&hdmi.wp);
-err_vid_enable:
-	hdmi_phy_disable(&hdmi.phy, &hdmi.wp);
-err_phy_enable:
-	hdmi_pll_disable(&hdmi.pll, &hdmi.wp);
-err_pll_enable:
-	hdmi_power_off_core(dssdev);
-	return -EIO;
-}
-
-static void hdmi_power_off_full(struct omap_dss_device *dssdev)
-{
-	struct omap_overlay_manager *mgr = hdmi.output.manager;
-
-	dss_mgr_disable(mgr);
-
-	hdmi_wp_video_stop(&hdmi.wp);
-	hdmi_phy_disable(&hdmi.phy, &hdmi.wp);
-	hdmi_pll_disable(&hdmi.pll, &hdmi.wp);
-
-	hdmi_power_off_core(dssdev);
-}
-
-static int hdmi_display_check_timing(struct omap_dss_device *dssdev,
-					struct omap_video_timings *timings)
-{
-	struct hdmi_cm cm;
-
-	cm = hdmi_get_code(timings);
-	if (cm.code == -1) {
-		return -EINVAL;
-	}
-
-	return 0;
-
-}
-
-static void hdmi_display_set_timing(struct omap_dss_device *dssdev,
-		struct omap_video_timings *timings)
-{
-	struct hdmi_cm cm;
-	const struct hdmi_config *t;
-
-	mutex_lock(&hdmi.lock);
-
-	cm = hdmi_get_code(timings);
-	hdmi.cfg.cm = cm;
-
-	t = hdmi_get_timings();
-	if (t != NULL) {
-		hdmi.cfg = *t;
-
-		dispc_set_tv_pclk(t->timings.pixel_clock * 1000);
-	}
-
-	mutex_unlock(&hdmi.lock);
-}
-
-static void hdmi_display_get_timings(struct omap_dss_device *dssdev,
-		struct omap_video_timings *timings)
-{
-	const struct hdmi_config *cfg;
-
-	cfg = hdmi_get_timings();
-	if (cfg == NULL)
-		cfg = &vesa_timings[0];
-
-	memcpy(timings, &cfg->timings, sizeof(cfg->timings));
-}
-
-static void hdmi_dump_regs(struct seq_file *s)
-{
-	mutex_lock(&hdmi.lock);
-
-	if (hdmi_runtime_get()) {
-		mutex_unlock(&hdmi.lock);
-		return;
-	}
-
-	hdmi_wp_dump(&hdmi.wp, s);
-	hdmi_pll_dump(&hdmi.pll, s);
-	hdmi_phy_dump(&hdmi.phy, s);
-	hdmi4_core_dump(&hdmi.core, s);
-
-	hdmi_runtime_put();
-	mutex_unlock(&hdmi.lock);
-}
-
-static int read_edid(u8 *buf, int len)
-{
-	int r;
-
-	mutex_lock(&hdmi.lock);
-
-	r = hdmi_runtime_get();
-	BUG_ON(r);
-
-	r = hdmi4_read_edid(&hdmi.core,  buf, len);
-
-	hdmi_runtime_put();
-	mutex_unlock(&hdmi.lock);
-
-	return r;
-}
-
-static int hdmi_display_enable(struct omap_dss_device *dssdev)
-{
-	struct omap_dss_device *out = &hdmi.output;
-	int r = 0;
-
-	DSSDBG("ENTER hdmi_display_enable\n");
-
-	mutex_lock(&hdmi.lock);
-
-	if (out == NULL || out->manager == NULL) {
-		DSSERR("failed to enable display: no output/manager\n");
-		r = -ENODEV;
-		goto err0;
-	}
-
-	r = hdmi_power_on_full(dssdev);
-	if (r) {
-		DSSERR("failed to power on device\n");
-		goto err0;
-	}
-
-	mutex_unlock(&hdmi.lock);
-	return 0;
-
-err0:
-	mutex_unlock(&hdmi.lock);
-	return r;
-}
-
-static void hdmi_display_disable(struct omap_dss_device *dssdev)
-{
-	DSSDBG("Enter hdmi_display_disable\n");
-
-	mutex_lock(&hdmi.lock);
-
-	hdmi_power_off_full(dssdev);
-
-	mutex_unlock(&hdmi.lock);
-}
-
-static int hdmi_core_enable(struct omap_dss_device *dssdev)
-{
-	int r = 0;
-
-	DSSDBG("ENTER omapdss_hdmi_core_enable\n");
-
-	mutex_lock(&hdmi.lock);
-
-	r = hdmi_power_on_core(dssdev);
-	if (r) {
-		DSSERR("failed to power on device\n");
-		goto err0;
-	}
-
-	mutex_unlock(&hdmi.lock);
-	return 0;
-
-err0:
-	mutex_unlock(&hdmi.lock);
-	return r;
-}
-
-static void hdmi_core_disable(struct omap_dss_device *dssdev)
-{
-	DSSDBG("Enter omapdss_hdmi_core_disable\n");
-
-	mutex_lock(&hdmi.lock);
-
-	hdmi_power_off_core(dssdev);
-
-	mutex_unlock(&hdmi.lock);
-}
-
-static int hdmi_get_clocks(struct platform_device *pdev)
-{
-	struct clk *clk;
-
-	clk = devm_clk_get(&pdev->dev, "sys_clk");
-	if (IS_ERR(clk)) {
-		DSSERR("can't get sys_clk\n");
-		return PTR_ERR(clk);
-	}
-
-	hdmi.sys_clk = clk;
-
-	return 0;
-}
-
-#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-int hdmi_compute_acr(u32 sample_freq, u32 *n, u32 *cts)
-{
-	u32 deep_color;
-	bool deep_color_correct = false;
-	u32 pclk = hdmi.cfg.timings.pixel_clock;
-
-	if (n == NULL || cts == NULL)
-		return -EINVAL;
-
-	/* TODO: When implemented, query deep color mode here. */
-	deep_color = 100;
-
-	/*
-	 * When using deep color, the default N value (as in the HDMI
-	 * specification) yields to an non-integer CTS. Hence, we
-	 * modify it while keeping the restrictions described in
-	 * section 7.2.1 of the HDMI 1.4a specification.
-	 */
-	switch (sample_freq) {
-	case 32000:
-	case 48000:
-	case 96000:
-	case 192000:
-		if (deep_color == 125)
-			if (pclk == 27027 || pclk == 74250)
-				deep_color_correct = true;
-		if (deep_color == 150)
-			if (pclk == 27027)
-				deep_color_correct = true;
-		break;
-	case 44100:
-	case 88200:
-	case 176400:
-		if (deep_color == 125)
-			if (pclk == 27027)
-				deep_color_correct = true;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	if (deep_color_correct) {
-		switch (sample_freq) {
-		case 32000:
-			*n = 8192;
-			break;
-		case 44100:
-			*n = 12544;
-			break;
-		case 48000:
-			*n = 8192;
-			break;
-		case 88200:
-			*n = 25088;
-			break;
-		case 96000:
-			*n = 16384;
-			break;
-		case 176400:
-			*n = 50176;
-			break;
-		case 192000:
-			*n = 32768;
-			break;
-		default:
-			return -EINVAL;
-		}
-	} else {
-		switch (sample_freq) {
-		case 32000:
-			*n = 4096;
-			break;
-		case 44100:
-			*n = 6272;
-			break;
-		case 48000:
-			*n = 6144;
-			break;
-		case 88200:
-			*n = 12544;
-			break;
-		case 96000:
-			*n = 12288;
-			break;
-		case 176400:
-			*n = 25088;
-			break;
-		case 192000:
-			*n = 24576;
-			break;
-		default:
-			return -EINVAL;
-		}
-	}
-	/* Calculate CTS. See HDMI 1.3a or 1.4a specifications */
-	*cts = pclk * (*n / 128) * deep_color / (sample_freq / 10);
-
-	return 0;
-}
-
-static bool hdmi_mode_has_audio(void)
-{
-	if (hdmi.cfg.cm.mode == HDMI_HDMI)
-		return true;
-	else
-		return false;
-}
-
-#endif
-
-static int hdmi_connect(struct omap_dss_device *dssdev,
-		struct omap_dss_device *dst)
-{
-	struct omap_overlay_manager *mgr;
-	int r;
-
-	r = hdmi_init_regulator();
-	if (r)
-		return r;
-
-	mgr = omap_dss_get_overlay_manager(dssdev->dispc_channel);
-	if (!mgr)
-		return -ENODEV;
-
-	r = dss_mgr_connect(mgr, dssdev);
-	if (r)
-		return r;
-
-	r = omapdss_output_set_device(dssdev, dst);
-	if (r) {
-		DSSERR("failed to connect output to new device: %s\n",
-				dst->name);
-		dss_mgr_disconnect(mgr, dssdev);
-		return r;
-	}
-
-	return 0;
-}
-
-static void hdmi_disconnect(struct omap_dss_device *dssdev,
-		struct omap_dss_device *dst)
-{
-	WARN_ON(dst != dssdev->dst);
-
-	if (dst != dssdev->dst)
-		return;
-
-	omapdss_output_unset_device(dssdev);
-
-	if (dssdev->manager)
-		dss_mgr_disconnect(dssdev->manager, dssdev);
-}
-
-static int hdmi_read_edid(struct omap_dss_device *dssdev,
-		u8 *edid, int len)
-{
-	bool need_enable;
-	int r;
-
-	need_enable = hdmi.core_enabled == false;
-
-	if (need_enable) {
-		r = hdmi_core_enable(dssdev);
-		if (r)
-			return r;
-	}
-
-	r = read_edid(edid, len);
-
-	if (need_enable)
-		hdmi_core_disable(dssdev);
-
-	return r;
-}
-
-#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-static int hdmi_audio_enable(struct omap_dss_device *dssdev)
-{
-	int r;
-
-	mutex_lock(&hdmi.lock);
-
-	if (!hdmi_mode_has_audio()) {
-		r = -EPERM;
-		goto err;
-	}
-
-	r = hdmi_wp_audio_enable(&hdmi.wp, true);
-	if (r)
-		goto err;
-
-	mutex_unlock(&hdmi.lock);
-	return 0;
-
-err:
-	mutex_unlock(&hdmi.lock);
-	return r;
-}
-
-static void hdmi_audio_disable(struct omap_dss_device *dssdev)
-{
-	hdmi_wp_audio_enable(&hdmi.wp, false);
-}
-
-static int hdmi_audio_start(struct omap_dss_device *dssdev)
-{
-	return hdmi4_audio_start(&hdmi.core, &hdmi.wp);
-}
-
-static void hdmi_audio_stop(struct omap_dss_device *dssdev)
-{
-	hdmi4_audio_stop(&hdmi.core, &hdmi.wp);
-}
-
-static bool hdmi_audio_supported(struct omap_dss_device *dssdev)
-{
-	bool r;
-
-	mutex_lock(&hdmi.lock);
-
-	r = hdmi_mode_has_audio();
-
-	mutex_unlock(&hdmi.lock);
-	return r;
-}
-
-static int hdmi_audio_config(struct omap_dss_device *dssdev,
-		struct omap_dss_audio *audio)
-{
-	int r;
-
-	mutex_lock(&hdmi.lock);
-
-	if (!hdmi_mode_has_audio()) {
-		r = -EPERM;
-		goto err;
-	}
-
-	r = hdmi4_audio_config(&hdmi.core, &hdmi.wp, audio);
-	if (r)
-		goto err;
-
-	mutex_unlock(&hdmi.lock);
-	return 0;
-
-err:
-	mutex_unlock(&hdmi.lock);
-	return r;
-}
-#else
-static int hdmi_audio_enable(struct omap_dss_device *dssdev)
-{
-	return -EPERM;
-}
-
-static void hdmi_audio_disable(struct omap_dss_device *dssdev)
-{
-}
-
-static int hdmi_audio_start(struct omap_dss_device *dssdev)
-{
-	return -EPERM;
-}
-
-static void hdmi_audio_stop(struct omap_dss_device *dssdev)
-{
-}
-
-static bool hdmi_audio_supported(struct omap_dss_device *dssdev)
-{
-	return false;
-}
-
-static int hdmi_audio_config(struct omap_dss_device *dssdev,
-		struct omap_dss_audio *audio)
-{
-	return -EPERM;
-}
-#endif
-
-static const struct omapdss_hdmi_ops hdmi_ops = {
-	.connect		= hdmi_connect,
-	.disconnect		= hdmi_disconnect,
-
-	.enable			= hdmi_display_enable,
-	.disable		= hdmi_display_disable,
-
-	.check_timings		= hdmi_display_check_timing,
-	.set_timings		= hdmi_display_set_timing,
-	.get_timings		= hdmi_display_get_timings,
-
-	.read_edid		= hdmi_read_edid,
-
-	.audio_enable		= hdmi_audio_enable,
-	.audio_disable		= hdmi_audio_disable,
-	.audio_start		= hdmi_audio_start,
-	.audio_stop		= hdmi_audio_stop,
-	.audio_supported	= hdmi_audio_supported,
-	.audio_config		= hdmi_audio_config,
-};
-
-static void hdmi_init_output(struct platform_device *pdev)
-{
-	struct omap_dss_device *out = &hdmi.output;
-
-	out->dev = &pdev->dev;
-	out->id = OMAP_DSS_OUTPUT_HDMI;
-	out->output_type = OMAP_DISPLAY_TYPE_HDMI;
-	out->name = "hdmi.0";
-	out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT;
-	out->ops.hdmi = &hdmi_ops;
-	out->owner = THIS_MODULE;
-
-	omapdss_register_output(out);
-}
-
-static void __exit hdmi_uninit_output(struct platform_device *pdev)
-{
-	struct omap_dss_device *out = &hdmi.output;
-
-	omapdss_unregister_output(out);
-}
-
-/* HDMI HW IP initialisation */
-static int omapdss_hdmihw_probe(struct platform_device *pdev)
-{
-	int r;
-
-	hdmi.pdev = pdev;
-
-	mutex_init(&hdmi.lock);
-
-	r = hdmi_wp_init(pdev, &hdmi.wp);
-	if (r)
-		return r;
-
-	r = hdmi_pll_init(pdev, &hdmi.pll);
-	if (r)
-		return r;
-
-	r = hdmi_phy_init(pdev, &hdmi.phy);
-	if (r)
-		return r;
-
-	r = hdmi4_core_init(pdev, &hdmi.core);
-	if (r)
-		return r;
-
-	r = hdmi_get_clocks(pdev);
-	if (r) {
-		DSSERR("can't get clocks\n");
-		return r;
-	}
-
-	pm_runtime_enable(&pdev->dev);
-
-	hdmi_init_output(pdev);
-
-	dss_debugfs_create_file("hdmi", hdmi_dump_regs);
-
-	return 0;
-}
-
-static int __exit omapdss_hdmihw_remove(struct platform_device *pdev)
-{
-	hdmi_uninit_output(pdev);
-
-	pm_runtime_disable(&pdev->dev);
-
-	return 0;
-}
-
-static int hdmi_runtime_suspend(struct device *dev)
-{
-	clk_disable_unprepare(hdmi.sys_clk);
-
-	dispc_runtime_put();
-
-	return 0;
-}
-
-static int hdmi_runtime_resume(struct device *dev)
-{
-	int r;
-
-	r = dispc_runtime_get();
-	if (r < 0)
-		return r;
-
-	clk_prepare_enable(hdmi.sys_clk);
-
-	return 0;
-}
-
-static const struct dev_pm_ops hdmi_pm_ops = {
-	.runtime_suspend = hdmi_runtime_suspend,
-	.runtime_resume = hdmi_runtime_resume,
-};
-
-static struct platform_driver omapdss_hdmihw_driver = {
-	.probe		= omapdss_hdmihw_probe,
-	.remove         = __exit_p(omapdss_hdmihw_remove),
-	.driver         = {
-		.name   = "omapdss_hdmi",
-		.owner  = THIS_MODULE,
-		.pm	= &hdmi_pm_ops,
-	},
-};
-
-int __init hdmi_init_platform_driver(void)
-{
-	return platform_driver_register(&omapdss_hdmihw_driver);
-}
-
-void __exit hdmi_uninit_platform_driver(void)
-{
-	platform_driver_unregister(&omapdss_hdmihw_driver);
-}
diff --git a/drivers/video/omap2/dss/hdmi.h b/drivers/video/omap2/dss/hdmi.h
new file mode 100644
index 000000000000..b92d981063dc
--- /dev/null
+++ b/drivers/video/omap2/dss/hdmi.h
@@ -0,0 +1,435 @@
+/*
+ * HDMI driver definition for TI OMAP4 Processor.
+ *
+ * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _HDMI_H
+#define _HDMI_H
+
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <video/omapdss.h>
+
+#include "dss.h"
+
+/* HDMI Wrapper */
+
+#define HDMI_WP_REVISION			0x0
+#define HDMI_WP_SYSCONFIG			0x10
+#define HDMI_WP_IRQSTATUS_RAW			0x24
+#define HDMI_WP_IRQSTATUS			0x28
+#define HDMI_WP_IRQENABLE_SET			0x2C
+#define HDMI_WP_IRQENABLE_CLR			0x30
+#define HDMI_WP_IRQWAKEEN			0x34
+#define HDMI_WP_PWR_CTRL			0x40
+#define HDMI_WP_DEBOUNCE			0x44
+#define HDMI_WP_VIDEO_CFG			0x50
+#define HDMI_WP_VIDEO_SIZE			0x60
+#define HDMI_WP_VIDEO_TIMING_H			0x68
+#define HDMI_WP_VIDEO_TIMING_V			0x6C
+#define HDMI_WP_WP_CLK				0x70
+#define HDMI_WP_AUDIO_CFG			0x80
+#define HDMI_WP_AUDIO_CFG2			0x84
+#define HDMI_WP_AUDIO_CTRL			0x88
+#define HDMI_WP_AUDIO_DATA			0x8C
+
+/* HDMI WP IRQ flags */
+
+#define HDMI_IRQ_OCP_TIMEOUT			(1 << 4)
+#define HDMI_IRQ_AUDIO_FIFO_UNDERFLOW		(1 << 8)
+#define HDMI_IRQ_AUDIO_FIFO_OVERFLOW		(1 << 9)
+#define HDMI_IRQ_AUDIO_FIFO_SAMPLE_REQ		(1 << 10)
+#define HDMI_IRQ_VIDEO_VSYNC			(1 << 16)
+#define HDMI_IRQ_VIDEO_FRAME_DONE		(1 << 17)
+#define HDMI_IRQ_PHY_LINE5V_ASSERT		(1 << 24)
+#define HDMI_IRQ_LINK_CONNECT			(1 << 25)
+#define HDMI_IRQ_LINK_DISCONNECT		(1 << 26)
+#define HDMI_IRQ_PLL_LOCK			(1 << 29)
+#define HDMI_IRQ_PLL_UNLOCK			(1 << 30)
+#define HDMI_IRQ_PLL_RECAL			(1 << 31)
+
+/* HDMI PLL */
+
+#define PLLCTRL_PLL_CONTROL			0x0
+#define PLLCTRL_PLL_STATUS			0x4
+#define PLLCTRL_PLL_GO				0x8
+#define PLLCTRL_CFG1				0xC
+#define PLLCTRL_CFG2				0x10
+#define PLLCTRL_CFG3				0x14
+#define PLLCTRL_SSC_CFG1			0x18
+#define PLLCTRL_SSC_CFG2			0x1C
+#define PLLCTRL_CFG4				0x20
+
+/* HDMI PHY */
+
+#define HDMI_TXPHY_TX_CTRL			0x0
+#define HDMI_TXPHY_DIGITAL_CTRL			0x4
+#define HDMI_TXPHY_POWER_CTRL			0x8
+#define HDMI_TXPHY_PAD_CFG_CTRL			0xC
+
+enum hdmi_pll_pwr {
+	HDMI_PLLPWRCMD_ALLOFF = 0,
+	HDMI_PLLPWRCMD_PLLONLY = 1,
+	HDMI_PLLPWRCMD_BOTHON_ALLCLKS = 2,
+	HDMI_PLLPWRCMD_BOTHON_NOPHYCLK = 3
+};
+
+enum hdmi_phy_pwr {
+	HDMI_PHYPWRCMD_OFF = 0,
+	HDMI_PHYPWRCMD_LDOON = 1,
+	HDMI_PHYPWRCMD_TXON = 2
+};
+
+enum hdmi_core_hdmi_dvi {
+	HDMI_DVI = 0,
+	HDMI_HDMI = 1
+};
+
+enum hdmi_clk_refsel {
+	HDMI_REFSEL_PCLK = 0,
+	HDMI_REFSEL_REF1 = 1,
+	HDMI_REFSEL_REF2 = 2,
+	HDMI_REFSEL_SYSCLK = 3
+};
+
+enum hdmi_packing_mode {
+	HDMI_PACK_10b_RGB_YUV444 = 0,
+	HDMI_PACK_24b_RGB_YUV444_YUV422 = 1,
+	HDMI_PACK_20b_YUV422 = 2,
+	HDMI_PACK_ALREADYPACKED = 7
+};
+
+enum hdmi_stereo_channels {
+	HDMI_AUDIO_STEREO_NOCHANNELS = 0,
+	HDMI_AUDIO_STEREO_ONECHANNEL = 1,
+	HDMI_AUDIO_STEREO_TWOCHANNELS = 2,
+	HDMI_AUDIO_STEREO_THREECHANNELS = 3,
+	HDMI_AUDIO_STEREO_FOURCHANNELS = 4
+};
+
+enum hdmi_audio_type {
+	HDMI_AUDIO_TYPE_LPCM = 0,
+	HDMI_AUDIO_TYPE_IEC = 1
+};
+
+enum hdmi_audio_justify {
+	HDMI_AUDIO_JUSTIFY_LEFT = 0,
+	HDMI_AUDIO_JUSTIFY_RIGHT = 1
+};
+
+enum hdmi_audio_sample_order {
+	HDMI_AUDIO_SAMPLE_RIGHT_FIRST = 0,
+	HDMI_AUDIO_SAMPLE_LEFT_FIRST = 1
+};
+
+enum hdmi_audio_samples_perword {
+	HDMI_AUDIO_ONEWORD_ONESAMPLE = 0,
+	HDMI_AUDIO_ONEWORD_TWOSAMPLES = 1
+};
+
+enum hdmi_audio_sample_size {
+	HDMI_AUDIO_SAMPLE_16BITS = 0,
+	HDMI_AUDIO_SAMPLE_24BITS = 1
+};
+
+enum hdmi_audio_transf_mode {
+	HDMI_AUDIO_TRANSF_DMA = 0,
+	HDMI_AUDIO_TRANSF_IRQ = 1
+};
+
+enum hdmi_audio_blk_strt_end_sig {
+	HDMI_AUDIO_BLOCK_SIG_STARTEND_ON = 0,
+	HDMI_AUDIO_BLOCK_SIG_STARTEND_OFF = 1
+};
+
+enum hdmi_core_audio_layout {
+	HDMI_AUDIO_LAYOUT_2CH = 0,
+	HDMI_AUDIO_LAYOUT_8CH = 1
+};
+
+enum hdmi_core_cts_mode {
+	HDMI_AUDIO_CTS_MODE_HW = 0,
+	HDMI_AUDIO_CTS_MODE_SW = 1
+};
+
+enum hdmi_audio_mclk_mode {
+	HDMI_AUDIO_MCLK_128FS = 0,
+	HDMI_AUDIO_MCLK_256FS = 1,
+	HDMI_AUDIO_MCLK_384FS = 2,
+	HDMI_AUDIO_MCLK_512FS = 3,
+	HDMI_AUDIO_MCLK_768FS = 4,
+	HDMI_AUDIO_MCLK_1024FS = 5,
+	HDMI_AUDIO_MCLK_1152FS = 6,
+	HDMI_AUDIO_MCLK_192FS = 7
+};
+
+/* INFOFRAME_AVI_ and INFOFRAME_AUDIO_ definitions */
+enum hdmi_core_infoframe {
+	HDMI_INFOFRAME_AVI_DB1Y_RGB = 0,
+	HDMI_INFOFRAME_AVI_DB1Y_YUV422 = 1,
+	HDMI_INFOFRAME_AVI_DB1Y_YUV444 = 2,
+	HDMI_INFOFRAME_AVI_DB1A_ACTIVE_FORMAT_OFF = 0,
+	HDMI_INFOFRAME_AVI_DB1A_ACTIVE_FORMAT_ON =  1,
+	HDMI_INFOFRAME_AVI_DB1B_NO = 0,
+	HDMI_INFOFRAME_AVI_DB1B_VERT = 1,
+	HDMI_INFOFRAME_AVI_DB1B_HORI = 2,
+	HDMI_INFOFRAME_AVI_DB1B_VERTHORI = 3,
+	HDMI_INFOFRAME_AVI_DB1S_0 = 0,
+	HDMI_INFOFRAME_AVI_DB1S_1 = 1,
+	HDMI_INFOFRAME_AVI_DB1S_2 = 2,
+	HDMI_INFOFRAME_AVI_DB2C_NO = 0,
+	HDMI_INFOFRAME_AVI_DB2C_ITU601 = 1,
+	HDMI_INFOFRAME_AVI_DB2C_ITU709 = 2,
+	HDMI_INFOFRAME_AVI_DB2C_EC_EXTENDED = 3,
+	HDMI_INFOFRAME_AVI_DB2M_NO = 0,
+	HDMI_INFOFRAME_AVI_DB2M_43 = 1,
+	HDMI_INFOFRAME_AVI_DB2M_169 = 2,
+	HDMI_INFOFRAME_AVI_DB2R_SAME = 8,
+	HDMI_INFOFRAME_AVI_DB2R_43 = 9,
+	HDMI_INFOFRAME_AVI_DB2R_169 = 10,
+	HDMI_INFOFRAME_AVI_DB2R_149 = 11,
+	HDMI_INFOFRAME_AVI_DB3ITC_NO = 0,
+	HDMI_INFOFRAME_AVI_DB3ITC_YES = 1,
+	HDMI_INFOFRAME_AVI_DB3EC_XVYUV601 = 0,
+	HDMI_INFOFRAME_AVI_DB3EC_XVYUV709 = 1,
+	HDMI_INFOFRAME_AVI_DB3Q_DEFAULT = 0,
+	HDMI_INFOFRAME_AVI_DB3Q_LR = 1,
+	HDMI_INFOFRAME_AVI_DB3Q_FR = 2,
+	HDMI_INFOFRAME_AVI_DB3SC_NO = 0,
+	HDMI_INFOFRAME_AVI_DB3SC_HORI = 1,
+	HDMI_INFOFRAME_AVI_DB3SC_VERT = 2,
+	HDMI_INFOFRAME_AVI_DB3SC_HORIVERT = 3,
+	HDMI_INFOFRAME_AVI_DB5PR_NO = 0,
+	HDMI_INFOFRAME_AVI_DB5PR_2 = 1,
+	HDMI_INFOFRAME_AVI_DB5PR_3 = 2,
+	HDMI_INFOFRAME_AVI_DB5PR_4 = 3,
+	HDMI_INFOFRAME_AVI_DB5PR_5 = 4,
+	HDMI_INFOFRAME_AVI_DB5PR_6 = 5,
+	HDMI_INFOFRAME_AVI_DB5PR_7 = 6,
+	HDMI_INFOFRAME_AVI_DB5PR_8 = 7,
+	HDMI_INFOFRAME_AVI_DB5PR_9 = 8,
+	HDMI_INFOFRAME_AVI_DB5PR_10 = 9,
+};
+
+struct hdmi_cm {
+	int	code;
+	int	mode;
+};
+
+struct hdmi_video_format {
+	enum hdmi_packing_mode	packing_mode;
+	u32			y_res;	/* Line per panel */
+	u32			x_res;	/* pixel per line */
+};
+
+struct hdmi_config {
+	struct omap_video_timings timings;
+	struct hdmi_cm cm;
+};
+
+/* HDMI PLL structure */
+struct hdmi_pll_info {
+	u16 regn;
+	u16 regm;
+	u32 regmf;
+	u16 regm2;
+	u16 regsd;
+	u16 dcofreq;
+	enum hdmi_clk_refsel refsel;
+};
+
+struct hdmi_audio_format {
+	enum hdmi_stereo_channels		stereo_channels;
+	u8					active_chnnls_msk;
+	enum hdmi_audio_type			type;
+	enum hdmi_audio_justify			justification;
+	enum hdmi_audio_sample_order		sample_order;
+	enum hdmi_audio_samples_perword		samples_per_word;
+	enum hdmi_audio_sample_size		sample_size;
+	enum hdmi_audio_blk_strt_end_sig	en_sig_blk_strt_end;
+};
+
+struct hdmi_audio_dma {
+	u8				transfer_size;
+	u8				block_size;
+	enum hdmi_audio_transf_mode	mode;
+	u16				fifo_threshold;
+};
+
+struct hdmi_core_audio_i2s_config {
+	u8 in_length_bits;
+	u8 justification;
+	u8 sck_edge_mode;
+	u8 vbit;
+	u8 direction;
+	u8 shift;
+	u8 active_sds;
+};
+
+struct hdmi_core_audio_config {
+	struct hdmi_core_audio_i2s_config	i2s_cfg;
+	struct snd_aes_iec958			*iec60958_cfg;
+	bool					fs_override;
+	u32					n;
+	u32					cts;
+	u32					aud_par_busclk;
+	enum hdmi_core_audio_layout		layout;
+	enum hdmi_core_cts_mode			cts_mode;
+	bool					use_mclk;
+	enum hdmi_audio_mclk_mode		mclk_mode;
+	bool					en_acr_pkt;
+	bool					en_dsd_audio;
+	bool					en_parallel_aud_input;
+	bool					en_spdif;
+};
+
+/*
+ * Refer to section 8.2 in HDMI 1.3 specification for
+ * details about infoframe databytes
+ */
+struct hdmi_core_infoframe_avi {
+	/* Y0, Y1 rgb,yCbCr */
+	u8	db1_format;
+	/* A0  Active information Present */
+	u8	db1_active_info;
+	/* B0, B1 Bar info data valid */
+	u8	db1_bar_info_dv;
+	/* S0, S1 scan information */
+	u8	db1_scan_info;
+	/* C0, C1 colorimetry */
+	u8	db2_colorimetry;
+	/* M0, M1 Aspect ratio (4:3, 16:9) */
+	u8	db2_aspect_ratio;
+	/* R0...R3 Active format aspect ratio */
+	u8	db2_active_fmt_ar;
+	/* ITC IT content. */
+	u8	db3_itc;
+	/* EC0, EC1, EC2 Extended colorimetry */
+	u8	db3_ec;
+	/* Q1, Q0 Quantization range */
+	u8	db3_q_range;
+	/* SC1, SC0 Non-uniform picture scaling */
+	u8	db3_nup_scaling;
+	/* VIC0..6 Video format identification */
+	u8	db4_videocode;
+	/* PR0..PR3 Pixel repetition factor */
+	u8	db5_pixel_repeat;
+	/* Line number end of top bar */
+	u16	db6_7_line_eoftop;
+	/* Line number start of bottom bar */
+	u16	db8_9_line_sofbottom;
+	/* Pixel number end of left bar */
+	u16	db10_11_pixel_eofleft;
+	/* Pixel number start of right bar */
+	u16	db12_13_pixel_sofright;
+};
+
+struct hdmi_wp_data {
+	void __iomem *base;
+};
+
+struct hdmi_pll_data {
+	void __iomem *base;
+
+	struct hdmi_pll_info info;
+};
+
+struct hdmi_phy_data {
+	void __iomem *base;
+
+	int irq;
+};
+
+struct hdmi_core_data {
+	void __iomem *base;
+
+	struct hdmi_core_infoframe_avi avi_cfg;
+};
+
+static inline void hdmi_write_reg(void __iomem *base_addr, const u16 idx,
+		u32 val)
+{
+	__raw_writel(val, base_addr + idx);
+}
+
+static inline u32 hdmi_read_reg(void __iomem *base_addr, const u16 idx)
+{
+	return __raw_readl(base_addr + idx);
+}
+
+#define REG_FLD_MOD(base, idx, val, start, end) \
+	hdmi_write_reg(base, idx, FLD_MOD(hdmi_read_reg(base, idx),\
+							val, start, end))
+#define REG_GET(base, idx, start, end) \
+	FLD_GET(hdmi_read_reg(base, idx), start, end)
+
+static inline int hdmi_wait_for_bit_change(void __iomem *base_addr,
+		const u16 idx, int b2, int b1, u32 val)
+{
+	u32 t = 0;
+	while (val != REG_GET(base_addr, idx, b2, b1)) {
+		udelay(1);
+		if (t++ > 10000)
+			return !val;
+	}
+	return val;
+}
+
+/* HDMI wrapper funcs */
+int hdmi_wp_video_start(struct hdmi_wp_data *wp);
+void hdmi_wp_video_stop(struct hdmi_wp_data *wp);
+void hdmi_wp_dump(struct hdmi_wp_data *wp, struct seq_file *s);
+u32 hdmi_wp_get_irqstatus(struct hdmi_wp_data *wp);
+void hdmi_wp_set_irqstatus(struct hdmi_wp_data *wp, u32 irqstatus);
+void hdmi_wp_set_irqenable(struct hdmi_wp_data *wp, u32 mask);
+void hdmi_wp_clear_irqenable(struct hdmi_wp_data *wp, u32 mask);
+int hdmi_wp_set_phy_pwr(struct hdmi_wp_data *wp, enum hdmi_phy_pwr val);
+int hdmi_wp_set_pll_pwr(struct hdmi_wp_data *wp, enum hdmi_pll_pwr val);
+void hdmi_wp_video_config_format(struct hdmi_wp_data *wp,
+		struct hdmi_video_format *video_fmt);
+void hdmi_wp_video_config_interface(struct hdmi_wp_data *wp,
+		struct omap_video_timings *timings);
+void hdmi_wp_video_config_timing(struct hdmi_wp_data *wp,
+		struct omap_video_timings *timings);
+void hdmi_wp_init_vid_fmt_timings(struct hdmi_video_format *video_fmt,
+		struct omap_video_timings *timings, struct hdmi_config *param);
+int hdmi_wp_init(struct platform_device *pdev, struct hdmi_wp_data *wp);
+
+/* HDMI PLL funcs */
+int hdmi_pll_enable(struct hdmi_pll_data *pll, struct hdmi_wp_data *wp);
+void hdmi_pll_disable(struct hdmi_pll_data *pll, struct hdmi_wp_data *wp);
+void hdmi_pll_dump(struct hdmi_pll_data *pll, struct seq_file *s);
+void hdmi_pll_compute(struct hdmi_pll_data *pll, unsigned long clkin, int phy);
+int hdmi_pll_init(struct platform_device *pdev, struct hdmi_pll_data *pll);
+
+/* HDMI PHY funcs */
+int hdmi_phy_enable(struct hdmi_phy_data *phy, struct hdmi_wp_data *wp,
+		struct hdmi_config *cfg);
+void hdmi_phy_disable(struct hdmi_phy_data *phy, struct hdmi_wp_data *wp);
+void hdmi_phy_dump(struct hdmi_phy_data *phy, struct seq_file *s);
+int hdmi_phy_init(struct platform_device *pdev, struct hdmi_phy_data *phy);
+
+#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
+int hdmi_compute_acr(u32 sample_freq, u32 *n, u32 *cts);
+int hdmi_wp_audio_enable(struct hdmi_wp_data *wp, bool enable);
+int hdmi_wp_audio_core_req_enable(struct hdmi_wp_data *wp, bool enable);
+void hdmi_wp_audio_config_format(struct hdmi_wp_data *wp,
+		struct hdmi_audio_format *aud_fmt);
+void hdmi_wp_audio_config_dma(struct hdmi_wp_data *wp,
+		struct hdmi_audio_dma *aud_dma);
+#endif
+#endif
diff --git a/drivers/video/omap2/dss/hdmi4.c b/drivers/video/omap2/dss/hdmi4.c
new file mode 100644
index 000000000000..324ecd00e4da
--- /dev/null
+++ b/drivers/video/omap2/dss/hdmi4.c
@@ -0,0 +1,1124 @@
+/*
+ * HDMI interface DSS driver for TI's OMAP4 family of SoCs.
+ * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com/
+ * Authors: Yong Zhi
+ *	Mythri pk <mythripk@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#define DSS_SUBSYS_NAME "HDMI"
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+#include <linux/string.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/clk.h>
+#include <linux/gpio.h>
+#include <linux/regulator/consumer.h>
+#include <video/omapdss.h>
+
+#include "hdmi4_core.h"
+#include "dss.h"
+#include "dss_features.h"
+
+/* HDMI EDID Length move this */
+#define HDMI_EDID_MAX_LENGTH			256
+#define EDID_TIMING_DESCRIPTOR_SIZE		0x12
+#define EDID_DESCRIPTOR_BLOCK0_ADDRESS		0x36
+#define EDID_DESCRIPTOR_BLOCK1_ADDRESS		0x80
+#define EDID_SIZE_BLOCK0_TIMING_DESCRIPTOR	4
+#define EDID_SIZE_BLOCK1_TIMING_DESCRIPTOR	4
+
+static struct {
+	struct mutex lock;
+	struct platform_device *pdev;
+
+	struct hdmi_wp_data	wp;
+	struct hdmi_pll_data	pll;
+	struct hdmi_phy_data	phy;
+	struct hdmi_core_data	core;
+
+	struct hdmi_config cfg;
+
+	struct clk *sys_clk;
+	struct regulator *vdda_hdmi_dac_reg;
+
+	bool core_enabled;
+
+	struct omap_dss_device output;
+} hdmi;
+
+/*
+ * Logic for the below structure :
+ * user enters the CEA or VESA timings by specifying the HDMI/DVI code.
+ * There is a correspondence between CEA/VESA timing and code, please
+ * refer to section 6.3 in HDMI 1.3 specification for timing code.
+ *
+ * In the below structure, cea_vesa_timings corresponds to all OMAP4
+ * supported CEA and VESA timing values.code_cea corresponds to the CEA
+ * code, It is used to get the timing from cea_vesa_timing array.Similarly
+ * with code_vesa. Code_index is used for back mapping, that is once EDID
+ * is read from the TV, EDID is parsed to find the timing values and then
+ * map it to corresponding CEA or VESA index.
+ */
+
+static const struct hdmi_config cea_timings[] = {
+	{
+		{ 640, 480, 25200, 96, 16, 48, 2, 10, 33,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 1, HDMI_HDMI },
+	},
+	{
+		{ 720, 480, 27027, 62, 16, 60, 6, 9, 30,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 2, HDMI_HDMI },
+	},
+	{
+		{ 1280, 720, 74250, 40, 110, 220, 5, 5, 20,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 4, HDMI_HDMI },
+	},
+	{
+		{ 1920, 540, 74250, 44, 88, 148, 5, 2, 15,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			true, },
+		{ 5, HDMI_HDMI },
+	},
+	{
+		{ 1440, 240, 27027, 124, 38, 114, 3, 4, 15,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
+			true, },
+		{ 6, HDMI_HDMI },
+	},
+	{
+		{ 1920, 1080, 148500, 44, 88, 148, 5, 4, 36,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 16, HDMI_HDMI },
+	},
+	{
+		{ 720, 576, 27000, 64, 12, 68, 5, 5, 39,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 17, HDMI_HDMI },
+	},
+	{
+		{ 1280, 720, 74250, 40, 440, 220, 5, 5, 20,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 19, HDMI_HDMI },
+	},
+	{
+		{ 1920, 540, 74250, 44, 528, 148, 5, 2, 15,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			true, },
+		{ 20, HDMI_HDMI },
+	},
+	{
+		{ 1440, 288, 27000, 126, 24, 138, 3, 2, 19,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
+			true, },
+		{ 21, HDMI_HDMI },
+	},
+	{
+		{ 1440, 576, 54000, 128, 24, 136, 5, 5, 39,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 29, HDMI_HDMI },
+	},
+	{
+		{ 1920, 1080, 148500, 44, 528, 148, 5, 4, 36,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 31, HDMI_HDMI },
+	},
+	{
+		{ 1920, 1080, 74250, 44, 638, 148, 5, 4, 36,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 32, HDMI_HDMI },
+	},
+	{
+		{ 2880, 480, 108108, 248, 64, 240, 6, 9, 30,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 35, HDMI_HDMI },
+	},
+	{
+		{ 2880, 576, 108000, 256, 48, 272, 5, 5, 39,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 37, HDMI_HDMI },
+	},
+};
+
+static const struct hdmi_config vesa_timings[] = {
+/* VESA From Here */
+	{
+		{ 640, 480, 25175, 96, 16, 48, 2, 11, 31,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 4, HDMI_DVI },
+	},
+	{
+		{ 800, 600, 40000, 128, 40, 88, 4, 1, 23,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 9, HDMI_DVI },
+	},
+	{
+		{ 848, 480, 33750, 112, 16, 112, 8, 6, 23,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0xE, HDMI_DVI },
+	},
+	{
+		{ 1280, 768, 79500, 128, 64, 192, 7, 3, 20,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 0x17, HDMI_DVI },
+	},
+	{
+		{ 1280, 800, 83500, 128, 72, 200, 6, 3, 22,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 0x1C, HDMI_DVI },
+	},
+	{
+		{ 1360, 768, 85500, 112, 64, 256, 6, 3, 18,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x27, HDMI_DVI },
+	},
+	{
+		{ 1280, 960, 108000, 112, 96, 312, 3, 1, 36,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x20, HDMI_DVI },
+	},
+	{
+		{ 1280, 1024, 108000, 112, 48, 248, 3, 1, 38,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x23, HDMI_DVI },
+	},
+	{
+		{ 1024, 768, 65000, 136, 24, 160, 6, 3, 29,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 0x10, HDMI_DVI },
+	},
+	{
+		{ 1400, 1050, 121750, 144, 88, 232, 4, 3, 32,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 0x2A, HDMI_DVI },
+	},
+	{
+		{ 1440, 900, 106500, 152, 80, 232, 6, 3, 25,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 0x2F, HDMI_DVI },
+	},
+	{
+		{ 1680, 1050, 146250, 176 , 104, 280, 6, 3, 30,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 0x3A, HDMI_DVI },
+	},
+	{
+		{ 1366, 768, 85500, 143, 70, 213, 3, 3, 24,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x51, HDMI_DVI },
+	},
+	{
+		{ 1920, 1080, 148500, 44, 148, 80, 5, 4, 36,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x52, HDMI_DVI },
+	},
+	{
+		{ 1280, 768, 68250, 32, 48, 80, 7, 3, 12,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x16, HDMI_DVI },
+	},
+	{
+		{ 1400, 1050, 101000, 32, 48, 80, 4, 3, 23,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x29, HDMI_DVI },
+	},
+	{
+		{ 1680, 1050, 119000, 32, 48, 80, 6, 3, 21,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x39, HDMI_DVI },
+	},
+	{
+		{ 1280, 800, 79500, 32, 48, 80, 6, 3, 14,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x1B, HDMI_DVI },
+	},
+	{
+		{ 1280, 720, 74250, 40, 110, 220, 5, 5, 20,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x55, HDMI_DVI },
+	},
+	{
+		{ 1920, 1200, 154000, 32, 48, 80, 6, 3, 26,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x44, HDMI_DVI },
+	},
+};
+
+static int hdmi_runtime_get(void)
+{
+	int r;
+
+	DSSDBG("hdmi_runtime_get\n");
+
+	r = pm_runtime_get_sync(&hdmi.pdev->dev);
+	WARN_ON(r < 0);
+	if (r < 0)
+		return r;
+
+	return 0;
+}
+
+static void hdmi_runtime_put(void)
+{
+	int r;
+
+	DSSDBG("hdmi_runtime_put\n");
+
+	r = pm_runtime_put_sync(&hdmi.pdev->dev);
+	WARN_ON(r < 0 && r != -ENOSYS);
+}
+
+static int hdmi_init_regulator(void)
+{
+	struct regulator *reg;
+
+	if (hdmi.vdda_hdmi_dac_reg != NULL)
+		return 0;
+
+	reg = devm_regulator_get(&hdmi.pdev->dev, "vdda_hdmi_dac");
+
+	/* DT HACK: try VDAC to make omapdss work for o4 sdp/panda */
+	if (IS_ERR(reg))
+		reg = devm_regulator_get(&hdmi.pdev->dev, "VDAC");
+
+	if (IS_ERR(reg)) {
+		DSSERR("can't get VDDA_HDMI_DAC regulator\n");
+		return PTR_ERR(reg);
+	}
+
+	hdmi.vdda_hdmi_dac_reg = reg;
+
+	return 0;
+}
+
+static const struct hdmi_config *hdmi_find_timing(
+					const struct hdmi_config *timings_arr,
+					int len)
+{
+	int i;
+
+	for (i = 0; i < len; i++) {
+		if (timings_arr[i].cm.code == hdmi.cfg.cm.code)
+			return &timings_arr[i];
+	}
+	return NULL;
+}
+
+static const struct hdmi_config *hdmi_get_timings(void)
+{
+	const struct hdmi_config *arr;
+	int len;
+
+	if (hdmi.cfg.cm.mode == HDMI_DVI) {
+		arr = vesa_timings;
+		len = ARRAY_SIZE(vesa_timings);
+	} else {
+		arr = cea_timings;
+		len = ARRAY_SIZE(cea_timings);
+	}
+
+	return hdmi_find_timing(arr, len);
+}
+
+static bool hdmi_timings_compare(struct omap_video_timings *timing1,
+				const struct omap_video_timings *timing2)
+{
+	int timing1_vsync, timing1_hsync, timing2_vsync, timing2_hsync;
+
+	if ((DIV_ROUND_CLOSEST(timing2->pixel_clock, 1000) ==
+			DIV_ROUND_CLOSEST(timing1->pixel_clock, 1000)) &&
+		(timing2->x_res == timing1->x_res) &&
+		(timing2->y_res == timing1->y_res)) {
+
+		timing2_hsync = timing2->hfp + timing2->hsw + timing2->hbp;
+		timing1_hsync = timing1->hfp + timing1->hsw + timing1->hbp;
+		timing2_vsync = timing2->vfp + timing2->vsw + timing2->vbp;
+		timing1_vsync = timing2->vfp + timing2->vsw + timing2->vbp;
+
+		DSSDBG("timing1_hsync = %d timing1_vsync = %d"\
+			"timing2_hsync = %d timing2_vsync = %d\n",
+			timing1_hsync, timing1_vsync,
+			timing2_hsync, timing2_vsync);
+
+		if ((timing1_hsync == timing2_hsync) &&
+			(timing1_vsync == timing2_vsync)) {
+			return true;
+		}
+	}
+	return false;
+}
+
+static struct hdmi_cm hdmi_get_code(struct omap_video_timings *timing)
+{
+	int i;
+	struct hdmi_cm cm = {-1};
+	DSSDBG("hdmi_get_code\n");
+
+	for (i = 0; i < ARRAY_SIZE(cea_timings); i++) {
+		if (hdmi_timings_compare(timing, &cea_timings[i].timings)) {
+			cm = cea_timings[i].cm;
+			goto end;
+		}
+	}
+	for (i = 0; i < ARRAY_SIZE(vesa_timings); i++) {
+		if (hdmi_timings_compare(timing, &vesa_timings[i].timings)) {
+			cm = vesa_timings[i].cm;
+			goto end;
+		}
+	}
+
+end:	return cm;
+
+}
+
+static int hdmi_power_on_core(struct omap_dss_device *dssdev)
+{
+	int r;
+
+	r = regulator_enable(hdmi.vdda_hdmi_dac_reg);
+	if (r)
+		return r;
+
+	r = hdmi_runtime_get();
+	if (r)
+		goto err_runtime_get;
+
+	/* Make selection of HDMI in DSS */
+	dss_select_hdmi_venc_clk_source(DSS_HDMI_M_PCLK);
+
+	hdmi.core_enabled = true;
+
+	return 0;
+
+err_runtime_get:
+	regulator_disable(hdmi.vdda_hdmi_dac_reg);
+
+	return r;
+}
+
+static void hdmi_power_off_core(struct omap_dss_device *dssdev)
+{
+	hdmi.core_enabled = false;
+
+	hdmi_runtime_put();
+	regulator_disable(hdmi.vdda_hdmi_dac_reg);
+}
+
+static int hdmi_power_on_full(struct omap_dss_device *dssdev)
+{
+	int r;
+	struct omap_video_timings *p;
+	struct omap_overlay_manager *mgr = hdmi.output.manager;
+	unsigned long phy;
+
+	r = hdmi_power_on_core(dssdev);
+	if (r)
+		return r;
+
+	dss_mgr_disable(mgr);
+
+	p = &hdmi.cfg.timings;
+
+	DSSDBG("hdmi_power_on x_res= %d y_res = %d\n", p->x_res, p->y_res);
+
+	phy = p->pixel_clock;
+
+	hdmi_pll_compute(&hdmi.pll, clk_get_rate(hdmi.sys_clk), phy);
+
+	hdmi_wp_video_stop(&hdmi.wp);
+
+	/* config the PLL and PHY hdmi_set_pll_pwrfirst */
+	r = hdmi_pll_enable(&hdmi.pll, &hdmi.wp);
+	if (r) {
+		DSSDBG("Failed to lock PLL\n");
+		goto err_pll_enable;
+	}
+
+	r = hdmi_phy_enable(&hdmi.phy, &hdmi.wp, &hdmi.cfg);
+	if (r) {
+		DSSDBG("Failed to start PHY\n");
+		goto err_phy_enable;
+	}
+
+	hdmi4_configure(&hdmi.core, &hdmi.wp, &hdmi.cfg);
+
+	/* bypass TV gamma table */
+	dispc_enable_gamma_table(0);
+
+	/* tv size */
+	dss_mgr_set_timings(mgr, p);
+
+	r = hdmi_wp_video_start(&hdmi.wp);
+	if (r)
+		goto err_vid_enable;
+
+	r = dss_mgr_enable(mgr);
+	if (r)
+		goto err_mgr_enable;
+
+	return 0;
+
+err_mgr_enable:
+	hdmi_wp_video_stop(&hdmi.wp);
+err_vid_enable:
+	hdmi_phy_disable(&hdmi.phy, &hdmi.wp);
+err_phy_enable:
+	hdmi_pll_disable(&hdmi.pll, &hdmi.wp);
+err_pll_enable:
+	hdmi_power_off_core(dssdev);
+	return -EIO;
+}
+
+static void hdmi_power_off_full(struct omap_dss_device *dssdev)
+{
+	struct omap_overlay_manager *mgr = hdmi.output.manager;
+
+	dss_mgr_disable(mgr);
+
+	hdmi_wp_video_stop(&hdmi.wp);
+	hdmi_phy_disable(&hdmi.phy, &hdmi.wp);
+	hdmi_pll_disable(&hdmi.pll, &hdmi.wp);
+
+	hdmi_power_off_core(dssdev);
+}
+
+static int hdmi_display_check_timing(struct omap_dss_device *dssdev,
+					struct omap_video_timings *timings)
+{
+	struct hdmi_cm cm;
+
+	cm = hdmi_get_code(timings);
+	if (cm.code == -1)
+		return -EINVAL;
+
+	return 0;
+
+}
+
+static void hdmi_display_set_timing(struct omap_dss_device *dssdev,
+		struct omap_video_timings *timings)
+{
+	struct hdmi_cm cm;
+	const struct hdmi_config *t;
+
+	mutex_lock(&hdmi.lock);
+
+	cm = hdmi_get_code(timings);
+	hdmi.cfg.cm = cm;
+
+	t = hdmi_get_timings();
+	if (t != NULL) {
+		hdmi.cfg = *t;
+
+		dispc_set_tv_pclk(t->timings.pixel_clock * 1000);
+	}
+
+	mutex_unlock(&hdmi.lock);
+}
+
+static void hdmi_display_get_timings(struct omap_dss_device *dssdev,
+		struct omap_video_timings *timings)
+{
+	const struct hdmi_config *cfg;
+
+	cfg = hdmi_get_timings();
+	if (cfg == NULL)
+		cfg = &vesa_timings[0];
+
+	memcpy(timings, &cfg->timings, sizeof(cfg->timings));
+}
+
+static void hdmi_dump_regs(struct seq_file *s)
+{
+	mutex_lock(&hdmi.lock);
+
+	if (hdmi_runtime_get()) {
+		mutex_unlock(&hdmi.lock);
+		return;
+	}
+
+	hdmi_wp_dump(&hdmi.wp, s);
+	hdmi_pll_dump(&hdmi.pll, s);
+	hdmi_phy_dump(&hdmi.phy, s);
+	hdmi4_core_dump(&hdmi.core, s);
+
+	hdmi_runtime_put();
+	mutex_unlock(&hdmi.lock);
+}
+
+static int read_edid(u8 *buf, int len)
+{
+	int r;
+
+	mutex_lock(&hdmi.lock);
+
+	r = hdmi_runtime_get();
+	BUG_ON(r);
+
+	r = hdmi4_read_edid(&hdmi.core,  buf, len);
+
+	hdmi_runtime_put();
+	mutex_unlock(&hdmi.lock);
+
+	return r;
+}
+
+static int hdmi_display_enable(struct omap_dss_device *dssdev)
+{
+	struct omap_dss_device *out = &hdmi.output;
+	int r = 0;
+
+	DSSDBG("ENTER hdmi_display_enable\n");
+
+	mutex_lock(&hdmi.lock);
+
+	if (out == NULL || out->manager == NULL) {
+		DSSERR("failed to enable display: no output/manager\n");
+		r = -ENODEV;
+		goto err0;
+	}
+
+	r = hdmi_power_on_full(dssdev);
+	if (r) {
+		DSSERR("failed to power on device\n");
+		goto err0;
+	}
+
+	mutex_unlock(&hdmi.lock);
+	return 0;
+
+err0:
+	mutex_unlock(&hdmi.lock);
+	return r;
+}
+
+static void hdmi_display_disable(struct omap_dss_device *dssdev)
+{
+	DSSDBG("Enter hdmi_display_disable\n");
+
+	mutex_lock(&hdmi.lock);
+
+	hdmi_power_off_full(dssdev);
+
+	mutex_unlock(&hdmi.lock);
+}
+
+static int hdmi_core_enable(struct omap_dss_device *dssdev)
+{
+	int r = 0;
+
+	DSSDBG("ENTER omapdss_hdmi_core_enable\n");
+
+	mutex_lock(&hdmi.lock);
+
+	r = hdmi_power_on_core(dssdev);
+	if (r) {
+		DSSERR("failed to power on device\n");
+		goto err0;
+	}
+
+	mutex_unlock(&hdmi.lock);
+	return 0;
+
+err0:
+	mutex_unlock(&hdmi.lock);
+	return r;
+}
+
+static void hdmi_core_disable(struct omap_dss_device *dssdev)
+{
+	DSSDBG("Enter omapdss_hdmi_core_disable\n");
+
+	mutex_lock(&hdmi.lock);
+
+	hdmi_power_off_core(dssdev);
+
+	mutex_unlock(&hdmi.lock);
+}
+
+static int hdmi_get_clocks(struct platform_device *pdev)
+{
+	struct clk *clk;
+
+	clk = devm_clk_get(&pdev->dev, "sys_clk");
+	if (IS_ERR(clk)) {
+		DSSERR("can't get sys_clk\n");
+		return PTR_ERR(clk);
+	}
+
+	hdmi.sys_clk = clk;
+
+	return 0;
+}
+
+#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
+int hdmi_compute_acr(u32 sample_freq, u32 *n, u32 *cts)
+{
+	u32 deep_color;
+	bool deep_color_correct = false;
+	u32 pclk = hdmi.cfg.timings.pixel_clock;
+
+	if (n == NULL || cts == NULL)
+		return -EINVAL;
+
+	/* TODO: When implemented, query deep color mode here. */
+	deep_color = 100;
+
+	/*
+	 * When using deep color, the default N value (as in the HDMI
+	 * specification) yields to an non-integer CTS. Hence, we
+	 * modify it while keeping the restrictions described in
+	 * section 7.2.1 of the HDMI 1.4a specification.
+	 */
+	switch (sample_freq) {
+	case 32000:
+	case 48000:
+	case 96000:
+	case 192000:
+		if (deep_color == 125)
+			if (pclk == 27027 || pclk == 74250)
+				deep_color_correct = true;
+		if (deep_color == 150)
+			if (pclk == 27027)
+				deep_color_correct = true;
+		break;
+	case 44100:
+	case 88200:
+	case 176400:
+		if (deep_color == 125)
+			if (pclk == 27027)
+				deep_color_correct = true;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (deep_color_correct) {
+		switch (sample_freq) {
+		case 32000:
+			*n = 8192;
+			break;
+		case 44100:
+			*n = 12544;
+			break;
+		case 48000:
+			*n = 8192;
+			break;
+		case 88200:
+			*n = 25088;
+			break;
+		case 96000:
+			*n = 16384;
+			break;
+		case 176400:
+			*n = 50176;
+			break;
+		case 192000:
+			*n = 32768;
+			break;
+		default:
+			return -EINVAL;
+		}
+	} else {
+		switch (sample_freq) {
+		case 32000:
+			*n = 4096;
+			break;
+		case 44100:
+			*n = 6272;
+			break;
+		case 48000:
+			*n = 6144;
+			break;
+		case 88200:
+			*n = 12544;
+			break;
+		case 96000:
+			*n = 12288;
+			break;
+		case 176400:
+			*n = 25088;
+			break;
+		case 192000:
+			*n = 24576;
+			break;
+		default:
+			return -EINVAL;
+		}
+	}
+	/* Calculate CTS. See HDMI 1.3a or 1.4a specifications */
+	*cts = pclk * (*n / 128) * deep_color / (sample_freq / 10);
+
+	return 0;
+}
+
+static bool hdmi_mode_has_audio(void)
+{
+	if (hdmi.cfg.cm.mode == HDMI_HDMI)
+		return true;
+	else
+		return false;
+}
+
+#endif
+
+static int hdmi_connect(struct omap_dss_device *dssdev,
+		struct omap_dss_device *dst)
+{
+	struct omap_overlay_manager *mgr;
+	int r;
+
+	r = hdmi_init_regulator();
+	if (r)
+		return r;
+
+	mgr = omap_dss_get_overlay_manager(dssdev->dispc_channel);
+	if (!mgr)
+		return -ENODEV;
+
+	r = dss_mgr_connect(mgr, dssdev);
+	if (r)
+		return r;
+
+	r = omapdss_output_set_device(dssdev, dst);
+	if (r) {
+		DSSERR("failed to connect output to new device: %s\n",
+				dst->name);
+		dss_mgr_disconnect(mgr, dssdev);
+		return r;
+	}
+
+	return 0;
+}
+
+static void hdmi_disconnect(struct omap_dss_device *dssdev,
+		struct omap_dss_device *dst)
+{
+	WARN_ON(dst != dssdev->dst);
+
+	if (dst != dssdev->dst)
+		return;
+
+	omapdss_output_unset_device(dssdev);
+
+	if (dssdev->manager)
+		dss_mgr_disconnect(dssdev->manager, dssdev);
+}
+
+static int hdmi_read_edid(struct omap_dss_device *dssdev,
+		u8 *edid, int len)
+{
+	bool need_enable;
+	int r;
+
+	need_enable = hdmi.core_enabled == false;
+
+	if (need_enable) {
+		r = hdmi_core_enable(dssdev);
+		if (r)
+			return r;
+	}
+
+	r = read_edid(edid, len);
+
+	if (need_enable)
+		hdmi_core_disable(dssdev);
+
+	return r;
+}
+
+#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
+static int hdmi_audio_enable(struct omap_dss_device *dssdev)
+{
+	int r;
+
+	mutex_lock(&hdmi.lock);
+
+	if (!hdmi_mode_has_audio()) {
+		r = -EPERM;
+		goto err;
+	}
+
+	r = hdmi_wp_audio_enable(&hdmi.wp, true);
+	if (r)
+		goto err;
+
+	mutex_unlock(&hdmi.lock);
+	return 0;
+
+err:
+	mutex_unlock(&hdmi.lock);
+	return r;
+}
+
+static void hdmi_audio_disable(struct omap_dss_device *dssdev)
+{
+	hdmi_wp_audio_enable(&hdmi.wp, false);
+}
+
+static int hdmi_audio_start(struct omap_dss_device *dssdev)
+{
+	return hdmi4_audio_start(&hdmi.core, &hdmi.wp);
+}
+
+static void hdmi_audio_stop(struct omap_dss_device *dssdev)
+{
+	hdmi4_audio_stop(&hdmi.core, &hdmi.wp);
+}
+
+static bool hdmi_audio_supported(struct omap_dss_device *dssdev)
+{
+	bool r;
+
+	mutex_lock(&hdmi.lock);
+
+	r = hdmi_mode_has_audio();
+
+	mutex_unlock(&hdmi.lock);
+	return r;
+}
+
+static int hdmi_audio_config(struct omap_dss_device *dssdev,
+		struct omap_dss_audio *audio)
+{
+	int r;
+
+	mutex_lock(&hdmi.lock);
+
+	if (!hdmi_mode_has_audio()) {
+		r = -EPERM;
+		goto err;
+	}
+
+	r = hdmi4_audio_config(&hdmi.core, &hdmi.wp, audio);
+	if (r)
+		goto err;
+
+	mutex_unlock(&hdmi.lock);
+	return 0;
+
+err:
+	mutex_unlock(&hdmi.lock);
+	return r;
+}
+#else
+static int hdmi_audio_enable(struct omap_dss_device *dssdev)
+{
+	return -EPERM;
+}
+
+static void hdmi_audio_disable(struct omap_dss_device *dssdev)
+{
+}
+
+static int hdmi_audio_start(struct omap_dss_device *dssdev)
+{
+	return -EPERM;
+}
+
+static void hdmi_audio_stop(struct omap_dss_device *dssdev)
+{
+}
+
+static bool hdmi_audio_supported(struct omap_dss_device *dssdev)
+{
+	return false;
+}
+
+static int hdmi_audio_config(struct omap_dss_device *dssdev,
+		struct omap_dss_audio *audio)
+{
+	return -EPERM;
+}
+#endif
+
+static const struct omapdss_hdmi_ops hdmi_ops = {
+	.connect		= hdmi_connect,
+	.disconnect		= hdmi_disconnect,
+
+	.enable			= hdmi_display_enable,
+	.disable		= hdmi_display_disable,
+
+	.check_timings		= hdmi_display_check_timing,
+	.set_timings		= hdmi_display_set_timing,
+	.get_timings		= hdmi_display_get_timings,
+
+	.read_edid		= hdmi_read_edid,
+
+	.audio_enable		= hdmi_audio_enable,
+	.audio_disable		= hdmi_audio_disable,
+	.audio_start		= hdmi_audio_start,
+	.audio_stop		= hdmi_audio_stop,
+	.audio_supported	= hdmi_audio_supported,
+	.audio_config		= hdmi_audio_config,
+};
+
+static void hdmi_init_output(struct platform_device *pdev)
+{
+	struct omap_dss_device *out = &hdmi.output;
+
+	out->dev = &pdev->dev;
+	out->id = OMAP_DSS_OUTPUT_HDMI;
+	out->output_type = OMAP_DISPLAY_TYPE_HDMI;
+	out->name = "hdmi.0";
+	out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT;
+	out->ops.hdmi = &hdmi_ops;
+	out->owner = THIS_MODULE;
+
+	omapdss_register_output(out);
+}
+
+static void __exit hdmi_uninit_output(struct platform_device *pdev)
+{
+	struct omap_dss_device *out = &hdmi.output;
+
+	omapdss_unregister_output(out);
+}
+
+/* HDMI HW IP initialisation */
+static int omapdss_hdmihw_probe(struct platform_device *pdev)
+{
+	int r;
+
+	hdmi.pdev = pdev;
+
+	mutex_init(&hdmi.lock);
+
+	r = hdmi_wp_init(pdev, &hdmi.wp);
+	if (r)
+		return r;
+
+	r = hdmi_pll_init(pdev, &hdmi.pll);
+	if (r)
+		return r;
+
+	r = hdmi_phy_init(pdev, &hdmi.phy);
+	if (r)
+		return r;
+
+	r = hdmi4_core_init(pdev, &hdmi.core);
+	if (r)
+		return r;
+
+	r = hdmi_get_clocks(pdev);
+	if (r) {
+		DSSERR("can't get clocks\n");
+		return r;
+	}
+
+	pm_runtime_enable(&pdev->dev);
+
+	hdmi_init_output(pdev);
+
+	dss_debugfs_create_file("hdmi", hdmi_dump_regs);
+
+	return 0;
+}
+
+static int __exit omapdss_hdmihw_remove(struct platform_device *pdev)
+{
+	hdmi_uninit_output(pdev);
+
+	pm_runtime_disable(&pdev->dev);
+
+	return 0;
+}
+
+static int hdmi_runtime_suspend(struct device *dev)
+{
+	clk_disable_unprepare(hdmi.sys_clk);
+
+	dispc_runtime_put();
+
+	return 0;
+}
+
+static int hdmi_runtime_resume(struct device *dev)
+{
+	int r;
+
+	r = dispc_runtime_get();
+	if (r < 0)
+		return r;
+
+	clk_prepare_enable(hdmi.sys_clk);
+
+	return 0;
+}
+
+static const struct dev_pm_ops hdmi_pm_ops = {
+	.runtime_suspend = hdmi_runtime_suspend,
+	.runtime_resume = hdmi_runtime_resume,
+};
+
+static struct platform_driver omapdss_hdmihw_driver = {
+	.probe		= omapdss_hdmihw_probe,
+	.remove         = __exit_p(omapdss_hdmihw_remove),
+	.driver         = {
+		.name   = "omapdss_hdmi",
+		.owner  = THIS_MODULE,
+		.pm	= &hdmi_pm_ops,
+	},
+};
+
+int __init hdmi4_init_platform_driver(void)
+{
+	return platform_driver_register(&omapdss_hdmihw_driver);
+}
+
+void __exit hdmi4_uninit_platform_driver(void)
+{
+	platform_driver_unregister(&omapdss_hdmihw_driver);
+}
diff --git a/drivers/video/omap2/dss/hdmi4_core.c b/drivers/video/omap2/dss/hdmi4_core.c
new file mode 100644
index 000000000000..3f7fc572be10
--- /dev/null
+++ b/drivers/video/omap2/dss/hdmi4_core.c
@@ -0,0 +1,1034 @@
+/*
+ * ti_hdmi_4xxx_ip.c
+ *
+ * HDMI TI81xx, TI38xx, TI OMAP4 etc IP driver Library
+ * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com/
+ * Authors: Yong Zhi
+ *	Mythri pk <mythripk@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/interrupt.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/string.h>
+#include <linux/seq_file.h>
+#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
+#include <sound/asound.h>
+#include <sound/asoundef.h>
+#endif
+
+#include "hdmi4_core.h"
+#include "dss_features.h"
+
+#define HDMI_CORE_AV		0x500
+
+static inline void __iomem *hdmi_av_base(struct hdmi_core_data *core)
+{
+	return core->base + HDMI_CORE_AV;
+}
+
+static int hdmi_core_ddc_init(struct hdmi_core_data *core)
+{
+	void __iomem *base = core->base;
+
+	/* Turn on CLK for DDC */
+	REG_FLD_MOD(base, HDMI_CORE_AV_DPD, 0x7, 2, 0);
+
+	/* IN_PROG */
+	if (REG_GET(base, HDMI_CORE_DDC_STATUS, 4, 4) == 1) {
+		/* Abort transaction */
+		REG_FLD_MOD(base, HDMI_CORE_DDC_CMD, 0xf, 3, 0);
+		/* IN_PROG */
+		if (hdmi_wait_for_bit_change(base, HDMI_CORE_DDC_STATUS,
+					4, 4, 0) != 0) {
+			DSSERR("Timeout aborting DDC transaction\n");
+			return -ETIMEDOUT;
+		}
+	}
+
+	/* Clk SCL Devices */
+	REG_FLD_MOD(base, HDMI_CORE_DDC_CMD, 0xA, 3, 0);
+
+	/* HDMI_CORE_DDC_STATUS_IN_PROG */
+	if (hdmi_wait_for_bit_change(base, HDMI_CORE_DDC_STATUS,
+				4, 4, 0) != 0) {
+		DSSERR("Timeout starting SCL clock\n");
+		return -ETIMEDOUT;
+	}
+
+	/* Clear FIFO */
+	REG_FLD_MOD(base, HDMI_CORE_DDC_CMD, 0x9, 3, 0);
+
+	/* HDMI_CORE_DDC_STATUS_IN_PROG */
+	if (hdmi_wait_for_bit_change(base, HDMI_CORE_DDC_STATUS,
+				4, 4, 0) != 0) {
+		DSSERR("Timeout clearing DDC fifo\n");
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
+static int hdmi_core_ddc_edid(struct hdmi_core_data *core,
+		u8 *pedid, int ext)
+{
+	void __iomem *base = core->base;
+	u32 i;
+	char checksum;
+	u32 offset = 0;
+
+	/* HDMI_CORE_DDC_STATUS_IN_PROG */
+	if (hdmi_wait_for_bit_change(base, HDMI_CORE_DDC_STATUS,
+				4, 4, 0) != 0) {
+		DSSERR("Timeout waiting DDC to be ready\n");
+		return -ETIMEDOUT;
+	}
+
+	if (ext % 2 != 0)
+		offset = 0x80;
+
+	/* Load Segment Address Register */
+	REG_FLD_MOD(base, HDMI_CORE_DDC_SEGM, ext / 2, 7, 0);
+
+	/* Load Slave Address Register */
+	REG_FLD_MOD(base, HDMI_CORE_DDC_ADDR, 0xA0 >> 1, 7, 1);
+
+	/* Load Offset Address Register */
+	REG_FLD_MOD(base, HDMI_CORE_DDC_OFFSET, offset, 7, 0);
+
+	/* Load Byte Count */
+	REG_FLD_MOD(base, HDMI_CORE_DDC_COUNT1, 0x80, 7, 0);
+	REG_FLD_MOD(base, HDMI_CORE_DDC_COUNT2, 0x0, 1, 0);
+
+	/* Set DDC_CMD */
+	if (ext)
+		REG_FLD_MOD(base, HDMI_CORE_DDC_CMD, 0x4, 3, 0);
+	else
+		REG_FLD_MOD(base, HDMI_CORE_DDC_CMD, 0x2, 3, 0);
+
+	/* HDMI_CORE_DDC_STATUS_BUS_LOW */
+	if (REG_GET(base, HDMI_CORE_DDC_STATUS, 6, 6) == 1) {
+		pr_err("I2C Bus Low?\n");
+		return -EIO;
+	}
+	/* HDMI_CORE_DDC_STATUS_NO_ACK */
+	if (REG_GET(base, HDMI_CORE_DDC_STATUS, 5, 5) == 1) {
+		pr_err("I2C No Ack\n");
+		return -EIO;
+	}
+
+	for (i = 0; i < 0x80; ++i) {
+		int t;
+
+		/* IN_PROG */
+		if (REG_GET(base, HDMI_CORE_DDC_STATUS, 4, 4) == 0) {
+			DSSERR("operation stopped when reading edid\n");
+			return -EIO;
+		}
+
+		t = 0;
+		/* FIFO_EMPTY */
+		while (REG_GET(base, HDMI_CORE_DDC_STATUS, 2, 2) == 1) {
+			if (t++ > 10000) {
+				DSSERR("timeout reading edid\n");
+				return -ETIMEDOUT;
+			}
+			udelay(1);
+		}
+
+		pedid[i] = REG_GET(base, HDMI_CORE_DDC_DATA, 7, 0);
+	}
+
+	checksum = 0;
+	for (i = 0; i < 0x80; ++i)
+		checksum += pedid[i];
+
+	if (checksum != 0) {
+		pr_err("E-EDID checksum failed!!\n");
+		return -EIO;
+	}
+
+	return 0;
+}
+
+int hdmi4_read_edid(struct hdmi_core_data *core, u8 *edid, int len)
+{
+	int r, l;
+
+	if (len < 128)
+		return -EINVAL;
+
+	r = hdmi_core_ddc_init(core);
+	if (r)
+		return r;
+
+	r = hdmi_core_ddc_edid(core, edid, 0);
+	if (r)
+		return r;
+
+	l = 128;
+
+	if (len >= 128 * 2 && edid[0x7e] > 0) {
+		r = hdmi_core_ddc_edid(core, edid + 0x80, 1);
+		if (r)
+			return r;
+		l += 128;
+	}
+
+	return l;
+}
+
+static void hdmi_core_init(struct hdmi_core_video_config *video_cfg,
+			struct hdmi_core_infoframe_avi *avi_cfg,
+			struct hdmi_core_packet_enable_repeat *repeat_cfg)
+{
+	pr_debug("Enter hdmi_core_init\n");
+
+	/* video core */
+	video_cfg->ip_bus_width = HDMI_INPUT_8BIT;
+	video_cfg->op_dither_truc = HDMI_OUTPUTTRUNCATION_8BIT;
+	video_cfg->deep_color_pkt = HDMI_DEEPCOLORPACKECTDISABLE;
+	video_cfg->pkt_mode = HDMI_PACKETMODERESERVEDVALUE;
+	video_cfg->hdmi_dvi = HDMI_DVI;
+	video_cfg->tclk_sel_clkmult = HDMI_FPLL10IDCK;
+
+	/* info frame */
+	avi_cfg->db1_format = 0;
+	avi_cfg->db1_active_info = 0;
+	avi_cfg->db1_bar_info_dv = 0;
+	avi_cfg->db1_scan_info = 0;
+	avi_cfg->db2_colorimetry = 0;
+	avi_cfg->db2_aspect_ratio = 0;
+	avi_cfg->db2_active_fmt_ar = 0;
+	avi_cfg->db3_itc = 0;
+	avi_cfg->db3_ec = 0;
+	avi_cfg->db3_q_range = 0;
+	avi_cfg->db3_nup_scaling = 0;
+	avi_cfg->db4_videocode = 0;
+	avi_cfg->db5_pixel_repeat = 0;
+	avi_cfg->db6_7_line_eoftop = 0;
+	avi_cfg->db8_9_line_sofbottom = 0;
+	avi_cfg->db10_11_pixel_eofleft = 0;
+	avi_cfg->db12_13_pixel_sofright = 0;
+
+	/* packet enable and repeat */
+	repeat_cfg->audio_pkt = 0;
+	repeat_cfg->audio_pkt_repeat = 0;
+	repeat_cfg->avi_infoframe = 0;
+	repeat_cfg->avi_infoframe_repeat = 0;
+	repeat_cfg->gen_cntrl_pkt = 0;
+	repeat_cfg->gen_cntrl_pkt_repeat = 0;
+	repeat_cfg->generic_pkt = 0;
+	repeat_cfg->generic_pkt_repeat = 0;
+}
+
+static void hdmi_core_powerdown_disable(struct hdmi_core_data *core)
+{
+	pr_debug("Enter hdmi_core_powerdown_disable\n");
+	REG_FLD_MOD(core->base, HDMI_CORE_SYS_SYS_CTRL1, 0x0, 0, 0);
+}
+
+static void hdmi_core_swreset_release(struct hdmi_core_data *core)
+{
+	pr_debug("Enter hdmi_core_swreset_release\n");
+	REG_FLD_MOD(core->base, HDMI_CORE_SYS_SRST, 0x0, 0, 0);
+}
+
+static void hdmi_core_swreset_assert(struct hdmi_core_data *core)
+{
+	pr_debug("Enter hdmi_core_swreset_assert\n");
+	REG_FLD_MOD(core->base, HDMI_CORE_SYS_SRST, 0x1, 0, 0);
+}
+
+/* HDMI_CORE_VIDEO_CONFIG */
+static void hdmi_core_video_config(struct hdmi_core_data *core,
+				struct hdmi_core_video_config *cfg)
+{
+	u32 r = 0;
+	void __iomem *core_sys_base = core->base;
+	void __iomem *core_av_base = hdmi_av_base(core);
+
+	/* sys_ctrl1 default configuration not tunable */
+	r = hdmi_read_reg(core_sys_base, HDMI_CORE_SYS_SYS_CTRL1);
+	r = FLD_MOD(r, HDMI_CORE_SYS_SYS_CTRL1_VEN_FOLLOWVSYNC, 5, 5);
+	r = FLD_MOD(r, HDMI_CORE_SYS_SYS_CTRL1_HEN_FOLLOWHSYNC, 4, 4);
+	r = FLD_MOD(r, HDMI_CORE_SYS_SYS_CTRL1_BSEL_24BITBUS, 2, 2);
+	r = FLD_MOD(r, HDMI_CORE_SYS_SYS_CTRL1_EDGE_RISINGEDGE, 1, 1);
+	hdmi_write_reg(core_sys_base, HDMI_CORE_SYS_SYS_CTRL1, r);
+
+	REG_FLD_MOD(core_sys_base,
+			HDMI_CORE_SYS_VID_ACEN, cfg->ip_bus_width, 7, 6);
+
+	/* Vid_Mode */
+	r = hdmi_read_reg(core_sys_base, HDMI_CORE_SYS_VID_MODE);
+
+	/* dither truncation configuration */
+	if (cfg->op_dither_truc > HDMI_OUTPUTTRUNCATION_12BIT) {
+		r = FLD_MOD(r, cfg->op_dither_truc - 3, 7, 6);
+		r = FLD_MOD(r, 1, 5, 5);
+	} else {
+		r = FLD_MOD(r, cfg->op_dither_truc, 7, 6);
+		r = FLD_MOD(r, 0, 5, 5);
+	}
+	hdmi_write_reg(core_sys_base, HDMI_CORE_SYS_VID_MODE, r);
+
+	/* HDMI_Ctrl */
+	r = hdmi_read_reg(core_av_base, HDMI_CORE_AV_HDMI_CTRL);
+	r = FLD_MOD(r, cfg->deep_color_pkt, 6, 6);
+	r = FLD_MOD(r, cfg->pkt_mode, 5, 3);
+	r = FLD_MOD(r, cfg->hdmi_dvi, 0, 0);
+	hdmi_write_reg(core_av_base, HDMI_CORE_AV_HDMI_CTRL, r);
+
+	/* TMDS_CTRL */
+	REG_FLD_MOD(core_sys_base,
+			HDMI_CORE_SYS_TMDS_CTRL, cfg->tclk_sel_clkmult, 6, 5);
+}
+
+static void hdmi_core_aux_infoframe_avi_config(struct hdmi_core_data *core)
+{
+	u32 val;
+	char sum = 0, checksum = 0;
+	void __iomem *av_base = hdmi_av_base(core);
+	struct hdmi_core_infoframe_avi info_avi = core->avi_cfg;
+
+	sum += 0x82 + 0x002 + 0x00D;
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_TYPE, 0x082);
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_VERS, 0x002);
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_LEN, 0x00D);
+
+	val = (info_avi.db1_format << 5) |
+		(info_avi.db1_active_info << 4) |
+		(info_avi.db1_bar_info_dv << 2) |
+		(info_avi.db1_scan_info);
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(0), val);
+	sum += val;
+
+	val = (info_avi.db2_colorimetry << 6) |
+		(info_avi.db2_aspect_ratio << 4) |
+		(info_avi.db2_active_fmt_ar);
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(1), val);
+	sum += val;
+
+	val = (info_avi.db3_itc << 7) |
+		(info_avi.db3_ec << 4) |
+		(info_avi.db3_q_range << 2) |
+		(info_avi.db3_nup_scaling);
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(2), val);
+	sum += val;
+
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(3),
+					info_avi.db4_videocode);
+	sum += info_avi.db4_videocode;
+
+	val = info_avi.db5_pixel_repeat;
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(4), val);
+	sum += val;
+
+	val = info_avi.db6_7_line_eoftop & 0x00FF;
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(5), val);
+	sum += val;
+
+	val = ((info_avi.db6_7_line_eoftop >> 8) & 0x00FF);
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(6), val);
+	sum += val;
+
+	val = info_avi.db8_9_line_sofbottom & 0x00FF;
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(7), val);
+	sum += val;
+
+	val = ((info_avi.db8_9_line_sofbottom >> 8) & 0x00FF);
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(8), val);
+	sum += val;
+
+	val = info_avi.db10_11_pixel_eofleft & 0x00FF;
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(9), val);
+	sum += val;
+
+	val = ((info_avi.db10_11_pixel_eofleft >> 8) & 0x00FF);
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(10), val);
+	sum += val;
+
+	val = info_avi.db12_13_pixel_sofright & 0x00FF;
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(11), val);
+	sum += val;
+
+	val = ((info_avi.db12_13_pixel_sofright >> 8) & 0x00FF);
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(12), val);
+	sum += val;
+
+	checksum = 0x100 - sum;
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_CHSUM, checksum);
+}
+
+static void hdmi_core_av_packet_config(struct hdmi_core_data *core,
+		struct hdmi_core_packet_enable_repeat repeat_cfg)
+{
+	/* enable/repeat the infoframe */
+	hdmi_write_reg(hdmi_av_base(core), HDMI_CORE_AV_PB_CTRL1,
+		(repeat_cfg.audio_pkt << 5) |
+		(repeat_cfg.audio_pkt_repeat << 4) |
+		(repeat_cfg.avi_infoframe << 1) |
+		(repeat_cfg.avi_infoframe_repeat));
+
+	/* enable/repeat the packet */
+	hdmi_write_reg(hdmi_av_base(core), HDMI_CORE_AV_PB_CTRL2,
+		(repeat_cfg.gen_cntrl_pkt << 3) |
+		(repeat_cfg.gen_cntrl_pkt_repeat << 2) |
+		(repeat_cfg.generic_pkt << 1) |
+		(repeat_cfg.generic_pkt_repeat));
+}
+
+void hdmi4_configure(struct hdmi_core_data *core,
+	struct hdmi_wp_data *wp, struct hdmi_config *cfg)
+{
+	/* HDMI */
+	struct omap_video_timings video_timing;
+	struct hdmi_video_format video_format;
+	/* HDMI core */
+	struct hdmi_core_infoframe_avi *avi_cfg = &core->avi_cfg;
+	struct hdmi_core_video_config v_core_cfg;
+	struct hdmi_core_packet_enable_repeat repeat_cfg;
+
+	hdmi_core_init(&v_core_cfg, avi_cfg, &repeat_cfg);
+
+	hdmi_wp_init_vid_fmt_timings(&video_format, &video_timing, cfg);
+
+	hdmi_wp_video_config_timing(wp, &video_timing);
+
+	/* video config */
+	video_format.packing_mode = HDMI_PACK_24b_RGB_YUV444_YUV422;
+
+	hdmi_wp_video_config_format(wp, &video_format);
+
+	hdmi_wp_video_config_interface(wp, &video_timing);
+
+	/*
+	 * configure core video part
+	 * set software reset in the core
+	 */
+	hdmi_core_swreset_assert(core);
+
+	/* power down off */
+	hdmi_core_powerdown_disable(core);
+
+	v_core_cfg.pkt_mode = HDMI_PACKETMODE24BITPERPIXEL;
+	v_core_cfg.hdmi_dvi = cfg->cm.mode;
+
+	hdmi_core_video_config(core, &v_core_cfg);
+
+	/* release software reset in the core */
+	hdmi_core_swreset_release(core);
+
+	/*
+	 * configure packet
+	 * info frame video see doc CEA861-D page 65
+	 */
+	avi_cfg->db1_format = HDMI_INFOFRAME_AVI_DB1Y_RGB;
+	avi_cfg->db1_active_info =
+			HDMI_INFOFRAME_AVI_DB1A_ACTIVE_FORMAT_OFF;
+	avi_cfg->db1_bar_info_dv = HDMI_INFOFRAME_AVI_DB1B_NO;
+	avi_cfg->db1_scan_info = HDMI_INFOFRAME_AVI_DB1S_0;
+	avi_cfg->db2_colorimetry = HDMI_INFOFRAME_AVI_DB2C_NO;
+	avi_cfg->db2_aspect_ratio = HDMI_INFOFRAME_AVI_DB2M_NO;
+	avi_cfg->db2_active_fmt_ar = HDMI_INFOFRAME_AVI_DB2R_SAME;
+	avi_cfg->db3_itc = HDMI_INFOFRAME_AVI_DB3ITC_NO;
+	avi_cfg->db3_ec = HDMI_INFOFRAME_AVI_DB3EC_XVYUV601;
+	avi_cfg->db3_q_range = HDMI_INFOFRAME_AVI_DB3Q_DEFAULT;
+	avi_cfg->db3_nup_scaling = HDMI_INFOFRAME_AVI_DB3SC_NO;
+	avi_cfg->db4_videocode = cfg->cm.code;
+	avi_cfg->db5_pixel_repeat = HDMI_INFOFRAME_AVI_DB5PR_NO;
+	avi_cfg->db6_7_line_eoftop = 0;
+	avi_cfg->db8_9_line_sofbottom = 0;
+	avi_cfg->db10_11_pixel_eofleft = 0;
+	avi_cfg->db12_13_pixel_sofright = 0;
+
+	hdmi_core_aux_infoframe_avi_config(core);
+
+	/* enable/repeat the infoframe */
+	repeat_cfg.avi_infoframe = HDMI_PACKETENABLE;
+	repeat_cfg.avi_infoframe_repeat = HDMI_PACKETREPEATON;
+	/* wakeup */
+	repeat_cfg.audio_pkt = HDMI_PACKETENABLE;
+	repeat_cfg.audio_pkt_repeat = HDMI_PACKETREPEATON;
+	hdmi_core_av_packet_config(core, repeat_cfg);
+}
+
+void hdmi4_core_dump(struct hdmi_core_data *core, struct seq_file *s)
+{
+	int i;
+
+#define CORE_REG(i, name) name(i)
+#define DUMPCORE(r) seq_printf(s, "%-35s %08x\n", #r,\
+		hdmi_read_reg(core->base, r))
+#define DUMPCOREAV(r) seq_printf(s, "%-35s %08x\n", #r,\
+		hdmi_read_reg(hdmi_av_base(core), r))
+#define DUMPCOREAV2(i, r) seq_printf(s, "%s[%d]%*s %08x\n", #r, i, \
+		(i < 10) ? 32 - (int)strlen(#r) : 31 - (int)strlen(#r), " ", \
+		hdmi_read_reg(hdmi_av_base(core), CORE_REG(i, r)))
+
+	DUMPCORE(HDMI_CORE_SYS_VND_IDL);
+	DUMPCORE(HDMI_CORE_SYS_DEV_IDL);
+	DUMPCORE(HDMI_CORE_SYS_DEV_IDH);
+	DUMPCORE(HDMI_CORE_SYS_DEV_REV);
+	DUMPCORE(HDMI_CORE_SYS_SRST);
+	DUMPCORE(HDMI_CORE_SYS_SYS_CTRL1);
+	DUMPCORE(HDMI_CORE_SYS_SYS_STAT);
+	DUMPCORE(HDMI_CORE_SYS_SYS_CTRL3);
+	DUMPCORE(HDMI_CORE_SYS_DE_DLY);
+	DUMPCORE(HDMI_CORE_SYS_DE_CTRL);
+	DUMPCORE(HDMI_CORE_SYS_DE_TOP);
+	DUMPCORE(HDMI_CORE_SYS_DE_CNTL);
+	DUMPCORE(HDMI_CORE_SYS_DE_CNTH);
+	DUMPCORE(HDMI_CORE_SYS_DE_LINL);
+	DUMPCORE(HDMI_CORE_SYS_DE_LINH_1);
+	DUMPCORE(HDMI_CORE_SYS_HRES_L);
+	DUMPCORE(HDMI_CORE_SYS_HRES_H);
+	DUMPCORE(HDMI_CORE_SYS_VRES_L);
+	DUMPCORE(HDMI_CORE_SYS_VRES_H);
+	DUMPCORE(HDMI_CORE_SYS_IADJUST);
+	DUMPCORE(HDMI_CORE_SYS_POLDETECT);
+	DUMPCORE(HDMI_CORE_SYS_HWIDTH1);
+	DUMPCORE(HDMI_CORE_SYS_HWIDTH2);
+	DUMPCORE(HDMI_CORE_SYS_VWIDTH);
+	DUMPCORE(HDMI_CORE_SYS_VID_CTRL);
+	DUMPCORE(HDMI_CORE_SYS_VID_ACEN);
+	DUMPCORE(HDMI_CORE_SYS_VID_MODE);
+	DUMPCORE(HDMI_CORE_SYS_VID_BLANK1);
+	DUMPCORE(HDMI_CORE_SYS_VID_BLANK3);
+	DUMPCORE(HDMI_CORE_SYS_VID_BLANK1);
+	DUMPCORE(HDMI_CORE_SYS_DC_HEADER);
+	DUMPCORE(HDMI_CORE_SYS_VID_DITHER);
+	DUMPCORE(HDMI_CORE_SYS_RGB2XVYCC_CT);
+	DUMPCORE(HDMI_CORE_SYS_R2Y_COEFF_LOW);
+	DUMPCORE(HDMI_CORE_SYS_R2Y_COEFF_UP);
+	DUMPCORE(HDMI_CORE_SYS_G2Y_COEFF_LOW);
+	DUMPCORE(HDMI_CORE_SYS_G2Y_COEFF_UP);
+	DUMPCORE(HDMI_CORE_SYS_B2Y_COEFF_LOW);
+	DUMPCORE(HDMI_CORE_SYS_B2Y_COEFF_UP);
+	DUMPCORE(HDMI_CORE_SYS_R2CB_COEFF_LOW);
+	DUMPCORE(HDMI_CORE_SYS_R2CB_COEFF_UP);
+	DUMPCORE(HDMI_CORE_SYS_G2CB_COEFF_LOW);
+	DUMPCORE(HDMI_CORE_SYS_G2CB_COEFF_UP);
+	DUMPCORE(HDMI_CORE_SYS_B2CB_COEFF_LOW);
+	DUMPCORE(HDMI_CORE_SYS_B2CB_COEFF_UP);
+	DUMPCORE(HDMI_CORE_SYS_R2CR_COEFF_LOW);
+	DUMPCORE(HDMI_CORE_SYS_R2CR_COEFF_UP);
+	DUMPCORE(HDMI_CORE_SYS_G2CR_COEFF_LOW);
+	DUMPCORE(HDMI_CORE_SYS_G2CR_COEFF_UP);
+	DUMPCORE(HDMI_CORE_SYS_B2CR_COEFF_LOW);
+	DUMPCORE(HDMI_CORE_SYS_B2CR_COEFF_UP);
+	DUMPCORE(HDMI_CORE_SYS_RGB_OFFSET_LOW);
+	DUMPCORE(HDMI_CORE_SYS_RGB_OFFSET_UP);
+	DUMPCORE(HDMI_CORE_SYS_Y_OFFSET_LOW);
+	DUMPCORE(HDMI_CORE_SYS_Y_OFFSET_UP);
+	DUMPCORE(HDMI_CORE_SYS_CBCR_OFFSET_LOW);
+	DUMPCORE(HDMI_CORE_SYS_CBCR_OFFSET_UP);
+	DUMPCORE(HDMI_CORE_SYS_INTR_STATE);
+	DUMPCORE(HDMI_CORE_SYS_INTR1);
+	DUMPCORE(HDMI_CORE_SYS_INTR2);
+	DUMPCORE(HDMI_CORE_SYS_INTR3);
+	DUMPCORE(HDMI_CORE_SYS_INTR4);
+	DUMPCORE(HDMI_CORE_SYS_INTR_UNMASK1);
+	DUMPCORE(HDMI_CORE_SYS_INTR_UNMASK2);
+	DUMPCORE(HDMI_CORE_SYS_INTR_UNMASK3);
+	DUMPCORE(HDMI_CORE_SYS_INTR_UNMASK4);
+	DUMPCORE(HDMI_CORE_SYS_INTR_CTRL);
+	DUMPCORE(HDMI_CORE_SYS_TMDS_CTRL);
+
+	DUMPCORE(HDMI_CORE_DDC_ADDR);
+	DUMPCORE(HDMI_CORE_DDC_SEGM);
+	DUMPCORE(HDMI_CORE_DDC_OFFSET);
+	DUMPCORE(HDMI_CORE_DDC_COUNT1);
+	DUMPCORE(HDMI_CORE_DDC_COUNT2);
+	DUMPCORE(HDMI_CORE_DDC_STATUS);
+	DUMPCORE(HDMI_CORE_DDC_CMD);
+	DUMPCORE(HDMI_CORE_DDC_DATA);
+
+	DUMPCOREAV(HDMI_CORE_AV_ACR_CTRL);
+	DUMPCOREAV(HDMI_CORE_AV_FREQ_SVAL);
+	DUMPCOREAV(HDMI_CORE_AV_N_SVAL1);
+	DUMPCOREAV(HDMI_CORE_AV_N_SVAL2);
+	DUMPCOREAV(HDMI_CORE_AV_N_SVAL3);
+	DUMPCOREAV(HDMI_CORE_AV_CTS_SVAL1);
+	DUMPCOREAV(HDMI_CORE_AV_CTS_SVAL2);
+	DUMPCOREAV(HDMI_CORE_AV_CTS_SVAL3);
+	DUMPCOREAV(HDMI_CORE_AV_CTS_HVAL1);
+	DUMPCOREAV(HDMI_CORE_AV_CTS_HVAL2);
+	DUMPCOREAV(HDMI_CORE_AV_CTS_HVAL3);
+	DUMPCOREAV(HDMI_CORE_AV_AUD_MODE);
+	DUMPCOREAV(HDMI_CORE_AV_SPDIF_CTRL);
+	DUMPCOREAV(HDMI_CORE_AV_HW_SPDIF_FS);
+	DUMPCOREAV(HDMI_CORE_AV_SWAP_I2S);
+	DUMPCOREAV(HDMI_CORE_AV_SPDIF_ERTH);
+	DUMPCOREAV(HDMI_CORE_AV_I2S_IN_MAP);
+	DUMPCOREAV(HDMI_CORE_AV_I2S_IN_CTRL);
+	DUMPCOREAV(HDMI_CORE_AV_I2S_CHST0);
+	DUMPCOREAV(HDMI_CORE_AV_I2S_CHST1);
+	DUMPCOREAV(HDMI_CORE_AV_I2S_CHST2);
+	DUMPCOREAV(HDMI_CORE_AV_I2S_CHST4);
+	DUMPCOREAV(HDMI_CORE_AV_I2S_CHST5);
+	DUMPCOREAV(HDMI_CORE_AV_ASRC);
+	DUMPCOREAV(HDMI_CORE_AV_I2S_IN_LEN);
+	DUMPCOREAV(HDMI_CORE_AV_HDMI_CTRL);
+	DUMPCOREAV(HDMI_CORE_AV_AUDO_TXSTAT);
+	DUMPCOREAV(HDMI_CORE_AV_AUD_PAR_BUSCLK_1);
+	DUMPCOREAV(HDMI_CORE_AV_AUD_PAR_BUSCLK_2);
+	DUMPCOREAV(HDMI_CORE_AV_AUD_PAR_BUSCLK_3);
+	DUMPCOREAV(HDMI_CORE_AV_TEST_TXCTRL);
+	DUMPCOREAV(HDMI_CORE_AV_DPD);
+	DUMPCOREAV(HDMI_CORE_AV_PB_CTRL1);
+	DUMPCOREAV(HDMI_CORE_AV_PB_CTRL2);
+	DUMPCOREAV(HDMI_CORE_AV_AVI_TYPE);
+	DUMPCOREAV(HDMI_CORE_AV_AVI_VERS);
+	DUMPCOREAV(HDMI_CORE_AV_AVI_LEN);
+	DUMPCOREAV(HDMI_CORE_AV_AVI_CHSUM);
+
+	for (i = 0; i < HDMI_CORE_AV_AVI_DBYTE_NELEMS; i++)
+		DUMPCOREAV2(i, HDMI_CORE_AV_AVI_DBYTE);
+
+	DUMPCOREAV(HDMI_CORE_AV_SPD_TYPE);
+	DUMPCOREAV(HDMI_CORE_AV_SPD_VERS);
+	DUMPCOREAV(HDMI_CORE_AV_SPD_LEN);
+	DUMPCOREAV(HDMI_CORE_AV_SPD_CHSUM);
+
+	for (i = 0; i < HDMI_CORE_AV_SPD_DBYTE_NELEMS; i++)
+		DUMPCOREAV2(i, HDMI_CORE_AV_SPD_DBYTE);
+
+	DUMPCOREAV(HDMI_CORE_AV_AUDIO_TYPE);
+	DUMPCOREAV(HDMI_CORE_AV_AUDIO_VERS);
+	DUMPCOREAV(HDMI_CORE_AV_AUDIO_LEN);
+	DUMPCOREAV(HDMI_CORE_AV_AUDIO_CHSUM);
+
+	for (i = 0; i < HDMI_CORE_AV_AUD_DBYTE_NELEMS; i++)
+		DUMPCOREAV2(i, HDMI_CORE_AV_AUD_DBYTE);
+
+	DUMPCOREAV(HDMI_CORE_AV_MPEG_TYPE);
+	DUMPCOREAV(HDMI_CORE_AV_MPEG_VERS);
+	DUMPCOREAV(HDMI_CORE_AV_MPEG_LEN);
+	DUMPCOREAV(HDMI_CORE_AV_MPEG_CHSUM);
+
+	for (i = 0; i < HDMI_CORE_AV_MPEG_DBYTE_NELEMS; i++)
+		DUMPCOREAV2(i, HDMI_CORE_AV_MPEG_DBYTE);
+
+	for (i = 0; i < HDMI_CORE_AV_GEN_DBYTE_NELEMS; i++)
+		DUMPCOREAV2(i, HDMI_CORE_AV_GEN_DBYTE);
+
+	DUMPCOREAV(HDMI_CORE_AV_CP_BYTE1);
+
+	for (i = 0; i < HDMI_CORE_AV_GEN2_DBYTE_NELEMS; i++)
+		DUMPCOREAV2(i, HDMI_CORE_AV_GEN2_DBYTE);
+
+	DUMPCOREAV(HDMI_CORE_AV_CEC_ADDR_ID);
+}
+
+#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
+static void hdmi_core_audio_config(struct hdmi_core_data *core,
+					struct hdmi_core_audio_config *cfg)
+{
+	u32 r;
+	void __iomem *av_base = hdmi_av_base(core);
+
+	/*
+	 * Parameters for generation of Audio Clock Recovery packets
+	 */
+	REG_FLD_MOD(av_base, HDMI_CORE_AV_N_SVAL1, cfg->n, 7, 0);
+	REG_FLD_MOD(av_base, HDMI_CORE_AV_N_SVAL2, cfg->n >> 8, 7, 0);
+	REG_FLD_MOD(av_base, HDMI_CORE_AV_N_SVAL3, cfg->n >> 16, 7, 0);
+
+	if (cfg->cts_mode == HDMI_AUDIO_CTS_MODE_SW) {
+		REG_FLD_MOD(av_base, HDMI_CORE_AV_CTS_SVAL1, cfg->cts, 7, 0);
+		REG_FLD_MOD(av_base,
+				HDMI_CORE_AV_CTS_SVAL2, cfg->cts >> 8, 7, 0);
+		REG_FLD_MOD(av_base,
+				HDMI_CORE_AV_CTS_SVAL3, cfg->cts >> 16, 7, 0);
+	} else {
+		REG_FLD_MOD(av_base, HDMI_CORE_AV_AUD_PAR_BUSCLK_1,
+				cfg->aud_par_busclk, 7, 0);
+		REG_FLD_MOD(av_base, HDMI_CORE_AV_AUD_PAR_BUSCLK_2,
+				(cfg->aud_par_busclk >> 8), 7, 0);
+		REG_FLD_MOD(av_base, HDMI_CORE_AV_AUD_PAR_BUSCLK_3,
+				(cfg->aud_par_busclk >> 16), 7, 0);
+	}
+
+	/* Set ACR clock divisor */
+	REG_FLD_MOD(av_base,
+			HDMI_CORE_AV_FREQ_SVAL, cfg->mclk_mode, 2, 0);
+
+	r = hdmi_read_reg(av_base, HDMI_CORE_AV_ACR_CTRL);
+	/*
+	 * Use TMDS clock for ACR packets. For devices that use
+	 * the MCLK, this is the first part of the MCLK initialization.
+	 */
+	r = FLD_MOD(r, 0, 2, 2);
+
+	r = FLD_MOD(r, cfg->en_acr_pkt, 1, 1);
+	r = FLD_MOD(r, cfg->cts_mode, 0, 0);
+	hdmi_write_reg(av_base, HDMI_CORE_AV_ACR_CTRL, r);
+
+	/* For devices using MCLK, this completes its initialization. */
+	if (cfg->use_mclk)
+		REG_FLD_MOD(av_base, HDMI_CORE_AV_ACR_CTRL, 1, 2, 2);
+
+	/* Override of SPDIF sample frequency with value in I2S_CHST4 */
+	REG_FLD_MOD(av_base, HDMI_CORE_AV_SPDIF_CTRL,
+						cfg->fs_override, 1, 1);
+
+	/*
+	 * Set IEC-60958-3 channel status word. It is passed to the IP
+	 * just as it is received. The user of the driver is responsible
+	 * for its contents.
+	 */
+	hdmi_write_reg(av_base, HDMI_CORE_AV_I2S_CHST0,
+		       cfg->iec60958_cfg->status[0]);
+	hdmi_write_reg(av_base, HDMI_CORE_AV_I2S_CHST1,
+		       cfg->iec60958_cfg->status[1]);
+	hdmi_write_reg(av_base, HDMI_CORE_AV_I2S_CHST2,
+		       cfg->iec60958_cfg->status[2]);
+	/* yes, this is correct: status[3] goes to CHST4 register */
+	hdmi_write_reg(av_base, HDMI_CORE_AV_I2S_CHST4,
+		       cfg->iec60958_cfg->status[3]);
+	/* yes, this is correct: status[4] goes to CHST5 register */
+	hdmi_write_reg(av_base, HDMI_CORE_AV_I2S_CHST5,
+		       cfg->iec60958_cfg->status[4]);
+
+	/* set I2S parameters */
+	r = hdmi_read_reg(av_base, HDMI_CORE_AV_I2S_IN_CTRL);
+	r = FLD_MOD(r, cfg->i2s_cfg.sck_edge_mode, 6, 6);
+	r = FLD_MOD(r, cfg->i2s_cfg.vbit, 4, 4);
+	r = FLD_MOD(r, cfg->i2s_cfg.justification, 2, 2);
+	r = FLD_MOD(r, cfg->i2s_cfg.direction, 1, 1);
+	r = FLD_MOD(r, cfg->i2s_cfg.shift, 0, 0);
+	hdmi_write_reg(av_base, HDMI_CORE_AV_I2S_IN_CTRL, r);
+
+	REG_FLD_MOD(av_base, HDMI_CORE_AV_I2S_IN_LEN,
+			cfg->i2s_cfg.in_length_bits, 3, 0);
+
+	/* Audio channels and mode parameters */
+	REG_FLD_MOD(av_base, HDMI_CORE_AV_HDMI_CTRL, cfg->layout, 2, 1);
+	r = hdmi_read_reg(av_base, HDMI_CORE_AV_AUD_MODE);
+	r = FLD_MOD(r, cfg->i2s_cfg.active_sds, 7, 4);
+	r = FLD_MOD(r, cfg->en_dsd_audio, 3, 3);
+	r = FLD_MOD(r, cfg->en_parallel_aud_input, 2, 2);
+	r = FLD_MOD(r, cfg->en_spdif, 1, 1);
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_MODE, r);
+
+	/* Audio channel mappings */
+	/* TODO: Make channel mapping dynamic. For now, map channels
+	 * in the ALSA order: FL/FR/RL/RR/C/LFE/SL/SR. Remapping is needed as
+	 * HDMI speaker order is different. See CEA-861 Section 6.6.2.
+	 */
+	hdmi_write_reg(av_base, HDMI_CORE_AV_I2S_IN_MAP, 0x78);
+	REG_FLD_MOD(av_base, HDMI_CORE_AV_SWAP_I2S, 1, 5, 5);
+}
+
+static void hdmi_core_audio_infoframe_cfg(struct hdmi_core_data *core,
+		struct snd_cea_861_aud_if *info_aud)
+{
+	u8 sum = 0, checksum = 0;
+	void __iomem *av_base = hdmi_av_base(core);
+
+	/*
+	 * Set audio info frame type, version and length as
+	 * described in HDMI 1.4a Section 8.2.2 specification.
+	 * Checksum calculation is defined in Section 5.3.5.
+	 */
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AUDIO_TYPE, 0x84);
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AUDIO_VERS, 0x01);
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AUDIO_LEN, 0x0a);
+	sum += 0x84 + 0x001 + 0x00a;
+
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(0),
+		       info_aud->db1_ct_cc);
+	sum += info_aud->db1_ct_cc;
+
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(1),
+		       info_aud->db2_sf_ss);
+	sum += info_aud->db2_sf_ss;
+
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(2), info_aud->db3);
+	sum += info_aud->db3;
+
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(3), info_aud->db4_ca);
+	sum += info_aud->db4_ca;
+
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(4),
+		       info_aud->db5_dminh_lsv);
+	sum += info_aud->db5_dminh_lsv;
+
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(5), 0x00);
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(6), 0x00);
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(7), 0x00);
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(8), 0x00);
+	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(9), 0x00);
+
+	checksum = 0x100 - sum;
+	hdmi_write_reg(av_base,
+					HDMI_CORE_AV_AUDIO_CHSUM, checksum);
+
+	/*
+	 * TODO: Add MPEG and SPD enable and repeat cfg when EDID parsing
+	 * is available.
+	 */
+}
+
+int hdmi4_audio_config(struct hdmi_core_data *core, struct hdmi_wp_data *wp,
+		struct omap_dss_audio *audio)
+{
+	struct hdmi_audio_format audio_format;
+	struct hdmi_audio_dma audio_dma;
+	struct hdmi_core_audio_config acore;
+	int err, n, cts, channel_count;
+	unsigned int fs_nr;
+	bool word_length_16b = false;
+
+	if (!audio || !audio->iec || !audio->cea || !core)
+		return -EINVAL;
+
+	acore.iec60958_cfg = audio->iec;
+	/*
+	 * In the IEC-60958 status word, check if the audio sample word length
+	 * is 16-bit as several optimizations can be performed in such case.
+	 */
+	if (!(audio->iec->status[4] & IEC958_AES4_CON_MAX_WORDLEN_24))
+		if (audio->iec->status[4] & IEC958_AES4_CON_WORDLEN_20_16)
+			word_length_16b = true;
+
+	/* I2S configuration. See Phillips' specification */
+	if (word_length_16b)
+		acore.i2s_cfg.justification = HDMI_AUDIO_JUSTIFY_LEFT;
+	else
+		acore.i2s_cfg.justification = HDMI_AUDIO_JUSTIFY_RIGHT;
+	/*
+	 * The I2S input word length is twice the lenght given in the IEC-60958
+	 * status word. If the word size is greater than
+	 * 20 bits, increment by one.
+	 */
+	acore.i2s_cfg.in_length_bits = audio->iec->status[4]
+		& IEC958_AES4_CON_WORDLEN;
+	if (audio->iec->status[4] & IEC958_AES4_CON_MAX_WORDLEN_24)
+		acore.i2s_cfg.in_length_bits++;
+	acore.i2s_cfg.sck_edge_mode = HDMI_AUDIO_I2S_SCK_EDGE_RISING;
+	acore.i2s_cfg.vbit = HDMI_AUDIO_I2S_VBIT_FOR_PCM;
+	acore.i2s_cfg.direction = HDMI_AUDIO_I2S_MSB_SHIFTED_FIRST;
+	acore.i2s_cfg.shift = HDMI_AUDIO_I2S_FIRST_BIT_SHIFT;
+
+	/* convert sample frequency to a number */
+	switch (audio->iec->status[3] & IEC958_AES3_CON_FS) {
+	case IEC958_AES3_CON_FS_32000:
+		fs_nr = 32000;
+		break;
+	case IEC958_AES3_CON_FS_44100:
+		fs_nr = 44100;
+		break;
+	case IEC958_AES3_CON_FS_48000:
+		fs_nr = 48000;
+		break;
+	case IEC958_AES3_CON_FS_88200:
+		fs_nr = 88200;
+		break;
+	case IEC958_AES3_CON_FS_96000:
+		fs_nr = 96000;
+		break;
+	case IEC958_AES3_CON_FS_176400:
+		fs_nr = 176400;
+		break;
+	case IEC958_AES3_CON_FS_192000:
+		fs_nr = 192000;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	err = hdmi_compute_acr(fs_nr, &n, &cts);
+
+	/* Audio clock regeneration settings */
+	acore.n = n;
+	acore.cts = cts;
+	if (dss_has_feature(FEAT_HDMI_CTS_SWMODE)) {
+		acore.aud_par_busclk = 0;
+		acore.cts_mode = HDMI_AUDIO_CTS_MODE_SW;
+		acore.use_mclk = dss_has_feature(FEAT_HDMI_AUDIO_USE_MCLK);
+	} else {
+		acore.aud_par_busclk = (((128 * 31) - 1) << 8);
+		acore.cts_mode = HDMI_AUDIO_CTS_MODE_HW;
+		acore.use_mclk = true;
+	}
+
+	if (acore.use_mclk)
+		acore.mclk_mode = HDMI_AUDIO_MCLK_128FS;
+
+	/* Audio channels settings */
+	channel_count = (audio->cea->db1_ct_cc &
+			 CEA861_AUDIO_INFOFRAME_DB1CC) + 1;
+
+	switch (channel_count) {
+	case 2:
+		audio_format.active_chnnls_msk = 0x03;
+		break;
+	case 3:
+		audio_format.active_chnnls_msk = 0x07;
+		break;
+	case 4:
+		audio_format.active_chnnls_msk = 0x0f;
+		break;
+	case 5:
+		audio_format.active_chnnls_msk = 0x1f;
+		break;
+	case 6:
+		audio_format.active_chnnls_msk = 0x3f;
+		break;
+	case 7:
+		audio_format.active_chnnls_msk = 0x7f;
+		break;
+	case 8:
+		audio_format.active_chnnls_msk = 0xff;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/*
+	 * the HDMI IP needs to enable four stereo channels when transmitting
+	 * more than 2 audio channels
+	 */
+	if (channel_count == 2) {
+		audio_format.stereo_channels = HDMI_AUDIO_STEREO_ONECHANNEL;
+		acore.i2s_cfg.active_sds = HDMI_AUDIO_I2S_SD0_EN;
+		acore.layout = HDMI_AUDIO_LAYOUT_2CH;
+	} else {
+		audio_format.stereo_channels = HDMI_AUDIO_STEREO_FOURCHANNELS;
+		acore.i2s_cfg.active_sds = HDMI_AUDIO_I2S_SD0_EN |
+				HDMI_AUDIO_I2S_SD1_EN | HDMI_AUDIO_I2S_SD2_EN |
+				HDMI_AUDIO_I2S_SD3_EN;
+		acore.layout = HDMI_AUDIO_LAYOUT_8CH;
+	}
+
+	acore.en_spdif = false;
+	/* use sample frequency from channel status word */
+	acore.fs_override = true;
+	/* enable ACR packets */
+	acore.en_acr_pkt = true;
+	/* disable direct streaming digital audio */
+	acore.en_dsd_audio = false;
+	/* use parallel audio interface */
+	acore.en_parallel_aud_input = true;
+
+	/* DMA settings */
+	if (word_length_16b)
+		audio_dma.transfer_size = 0x10;
+	else
+		audio_dma.transfer_size = 0x20;
+	audio_dma.block_size = 0xC0;
+	audio_dma.mode = HDMI_AUDIO_TRANSF_DMA;
+	audio_dma.fifo_threshold = 0x20; /* in number of samples */
+
+	/* audio FIFO format settings */
+	if (word_length_16b) {
+		audio_format.samples_per_word = HDMI_AUDIO_ONEWORD_TWOSAMPLES;
+		audio_format.sample_size = HDMI_AUDIO_SAMPLE_16BITS;
+		audio_format.justification = HDMI_AUDIO_JUSTIFY_LEFT;
+	} else {
+		audio_format.samples_per_word = HDMI_AUDIO_ONEWORD_ONESAMPLE;
+		audio_format.sample_size = HDMI_AUDIO_SAMPLE_24BITS;
+		audio_format.justification = HDMI_AUDIO_JUSTIFY_RIGHT;
+	}
+	audio_format.type = HDMI_AUDIO_TYPE_LPCM;
+	audio_format.sample_order = HDMI_AUDIO_SAMPLE_LEFT_FIRST;
+	/* disable start/stop signals of IEC 60958 blocks */
+	audio_format.en_sig_blk_strt_end = HDMI_AUDIO_BLOCK_SIG_STARTEND_ON;
+
+	/* configure DMA and audio FIFO format*/
+	hdmi_wp_audio_config_dma(wp, &audio_dma);
+	hdmi_wp_audio_config_format(wp, &audio_format);
+
+	/* configure the core*/
+	hdmi_core_audio_config(core, &acore);
+
+	/* configure CEA 861 audio infoframe*/
+	hdmi_core_audio_infoframe_cfg(core, audio->cea);
+
+	return 0;
+}
+
+int hdmi4_audio_start(struct hdmi_core_data *core, struct hdmi_wp_data *wp)
+{
+	REG_FLD_MOD(hdmi_av_base(core),
+		    HDMI_CORE_AV_AUD_MODE, true, 0, 0);
+
+	hdmi_wp_audio_core_req_enable(wp, true);
+
+	return 0;
+}
+
+void hdmi4_audio_stop(struct hdmi_core_data *core, struct hdmi_wp_data *wp)
+{
+	REG_FLD_MOD(hdmi_av_base(core),
+		    HDMI_CORE_AV_AUD_MODE, false, 0, 0);
+
+	hdmi_wp_audio_core_req_enable(wp, false);
+}
+
+int hdmi4_audio_get_dma_port(u32 *offset, u32 *size)
+{
+	if (!offset || !size)
+		return -EINVAL;
+	*offset = HDMI_WP_AUDIO_DATA;
+	*size = 4;
+	return 0;
+}
+
+#endif
+
+#define CORE_OFFSET		0x400
+#define CORE_SIZE		0xc00
+
+int hdmi4_core_init(struct platform_device *pdev, struct hdmi_core_data *core)
+{
+	struct resource *res;
+	struct resource temp_res;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hdmi_core");
+	if (!res) {
+		DSSDBG("can't get CORE mem resource by name\n");
+		/*
+		 * if hwmod/DT doesn't have the memory resource information
+		 * split into HDMI sub blocks by name, we try again by getting
+		 * the platform's first resource. this code will be removed when
+		 * the driver can get the mem resources by name
+		 */
+		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+		if (!res) {
+			DSSERR("can't get CORE mem resource\n");
+			return -EINVAL;
+		}
+
+		temp_res.start = res->start + CORE_OFFSET;
+		temp_res.end = temp_res.start + CORE_SIZE - 1;
+		res = &temp_res;
+	}
+
+	core->base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
+	if (!core->base) {
+		DSSERR("can't ioremap CORE\n");
+		return -ENOMEM;
+	}
+
+	return 0;
+}
diff --git a/drivers/video/omap2/dss/hdmi4_core.h b/drivers/video/omap2/dss/hdmi4_core.h
new file mode 100644
index 000000000000..1181b4c1a068
--- /dev/null
+++ b/drivers/video/omap2/dss/hdmi4_core.h
@@ -0,0 +1,276 @@
+/*
+ * HDMI header definition for OMAP4 HDMI core IP
+ *
+ * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _HDMI4_CORE_H_
+#define _HDMI4_CORE_H_
+
+#include "hdmi.h"
+
+/* OMAP4 HDMI IP Core System */
+
+#define HDMI_CORE_SYS_VND_IDL			0x0
+#define HDMI_CORE_SYS_DEV_IDL			0x8
+#define HDMI_CORE_SYS_DEV_IDH			0xC
+#define HDMI_CORE_SYS_DEV_REV			0x10
+#define HDMI_CORE_SYS_SRST			0x14
+#define HDMI_CORE_SYS_SYS_CTRL1			0x20
+#define HDMI_CORE_SYS_SYS_STAT			0x24
+#define HDMI_CORE_SYS_SYS_CTRL3			0x28
+#define HDMI_CORE_SYS_DCTL			0x34
+#define HDMI_CORE_SYS_DE_DLY			0xC8
+#define HDMI_CORE_SYS_DE_CTRL			0xCC
+#define HDMI_CORE_SYS_DE_TOP			0xD0
+#define HDMI_CORE_SYS_DE_CNTL			0xD8
+#define HDMI_CORE_SYS_DE_CNTH			0xDC
+#define HDMI_CORE_SYS_DE_LINL			0xE0
+#define HDMI_CORE_SYS_DE_LINH_1			0xE4
+#define HDMI_CORE_SYS_HRES_L			0xE8
+#define HDMI_CORE_SYS_HRES_H			0xEC
+#define HDMI_CORE_SYS_VRES_L			0xF0
+#define HDMI_CORE_SYS_VRES_H			0xF4
+#define HDMI_CORE_SYS_IADJUST			0xF8
+#define HDMI_CORE_SYS_POLDETECT			0xFC
+#define HDMI_CORE_SYS_HWIDTH1			0x110
+#define HDMI_CORE_SYS_HWIDTH2			0x114
+#define HDMI_CORE_SYS_VWIDTH			0x11C
+#define HDMI_CORE_SYS_VID_CTRL			0x120
+#define HDMI_CORE_SYS_VID_ACEN			0x124
+#define HDMI_CORE_SYS_VID_MODE			0x128
+#define HDMI_CORE_SYS_VID_BLANK1		0x12C
+#define HDMI_CORE_SYS_VID_BLANK2		0x130
+#define HDMI_CORE_SYS_VID_BLANK3		0x134
+#define HDMI_CORE_SYS_DC_HEADER			0x138
+#define HDMI_CORE_SYS_VID_DITHER		0x13C
+#define HDMI_CORE_SYS_RGB2XVYCC_CT		0x140
+#define HDMI_CORE_SYS_R2Y_COEFF_LOW		0x144
+#define HDMI_CORE_SYS_R2Y_COEFF_UP		0x148
+#define HDMI_CORE_SYS_G2Y_COEFF_LOW		0x14C
+#define HDMI_CORE_SYS_G2Y_COEFF_UP		0x150
+#define HDMI_CORE_SYS_B2Y_COEFF_LOW		0x154
+#define HDMI_CORE_SYS_B2Y_COEFF_UP		0x158
+#define HDMI_CORE_SYS_R2CB_COEFF_LOW		0x15C
+#define HDMI_CORE_SYS_R2CB_COEFF_UP		0x160
+#define HDMI_CORE_SYS_G2CB_COEFF_LOW		0x164
+#define HDMI_CORE_SYS_G2CB_COEFF_UP		0x168
+#define HDMI_CORE_SYS_B2CB_COEFF_LOW		0x16C
+#define HDMI_CORE_SYS_B2CB_COEFF_UP		0x170
+#define HDMI_CORE_SYS_R2CR_COEFF_LOW		0x174
+#define HDMI_CORE_SYS_R2CR_COEFF_UP		0x178
+#define HDMI_CORE_SYS_G2CR_COEFF_LOW		0x17C
+#define HDMI_CORE_SYS_G2CR_COEFF_UP		0x180
+#define HDMI_CORE_SYS_B2CR_COEFF_LOW		0x184
+#define HDMI_CORE_SYS_B2CR_COEFF_UP		0x188
+#define HDMI_CORE_SYS_RGB_OFFSET_LOW		0x18C
+#define HDMI_CORE_SYS_RGB_OFFSET_UP		0x190
+#define HDMI_CORE_SYS_Y_OFFSET_LOW		0x194
+#define HDMI_CORE_SYS_Y_OFFSET_UP		0x198
+#define HDMI_CORE_SYS_CBCR_OFFSET_LOW		0x19C
+#define HDMI_CORE_SYS_CBCR_OFFSET_UP		0x1A0
+#define HDMI_CORE_SYS_INTR_STATE		0x1C0
+#define HDMI_CORE_SYS_INTR1			0x1C4
+#define HDMI_CORE_SYS_INTR2			0x1C8
+#define HDMI_CORE_SYS_INTR3			0x1CC
+#define HDMI_CORE_SYS_INTR4			0x1D0
+#define HDMI_CORE_SYS_INTR_UNMASK1		0x1D4
+#define HDMI_CORE_SYS_INTR_UNMASK2		0x1D8
+#define HDMI_CORE_SYS_INTR_UNMASK3		0x1DC
+#define HDMI_CORE_SYS_INTR_UNMASK4		0x1E0
+#define HDMI_CORE_SYS_INTR_CTRL			0x1E4
+#define HDMI_CORE_SYS_TMDS_CTRL			0x208
+
+/* value definitions for HDMI_CORE_SYS_SYS_CTRL1 fields */
+#define HDMI_CORE_SYS_SYS_CTRL1_VEN_FOLLOWVSYNC	0x1
+#define HDMI_CORE_SYS_SYS_CTRL1_HEN_FOLLOWHSYNC	0x1
+#define HDMI_CORE_SYS_SYS_CTRL1_BSEL_24BITBUS	0x1
+#define HDMI_CORE_SYS_SYS_CTRL1_EDGE_RISINGEDGE	0x1
+
+/* HDMI DDC E-DID */
+#define HDMI_CORE_DDC_ADDR			0x3B4
+#define HDMI_CORE_DDC_SEGM			0x3B8
+#define HDMI_CORE_DDC_OFFSET			0x3BC
+#define HDMI_CORE_DDC_COUNT1			0x3C0
+#define HDMI_CORE_DDC_COUNT2			0x3C4
+#define HDMI_CORE_DDC_STATUS			0x3C8
+#define HDMI_CORE_DDC_CMD			0x3CC
+#define HDMI_CORE_DDC_DATA			0x3D0
+
+/* HDMI IP Core Audio Video */
+
+#define HDMI_CORE_AV_ACR_CTRL			0x4
+#define HDMI_CORE_AV_FREQ_SVAL			0x8
+#define HDMI_CORE_AV_N_SVAL1			0xC
+#define HDMI_CORE_AV_N_SVAL2			0x10
+#define HDMI_CORE_AV_N_SVAL3			0x14
+#define HDMI_CORE_AV_CTS_SVAL1			0x18
+#define HDMI_CORE_AV_CTS_SVAL2			0x1C
+#define HDMI_CORE_AV_CTS_SVAL3			0x20
+#define HDMI_CORE_AV_CTS_HVAL1			0x24
+#define HDMI_CORE_AV_CTS_HVAL2			0x28
+#define HDMI_CORE_AV_CTS_HVAL3			0x2C
+#define HDMI_CORE_AV_AUD_MODE			0x50
+#define HDMI_CORE_AV_SPDIF_CTRL			0x54
+#define HDMI_CORE_AV_HW_SPDIF_FS		0x60
+#define HDMI_CORE_AV_SWAP_I2S			0x64
+#define HDMI_CORE_AV_SPDIF_ERTH			0x6C
+#define HDMI_CORE_AV_I2S_IN_MAP			0x70
+#define HDMI_CORE_AV_I2S_IN_CTRL		0x74
+#define HDMI_CORE_AV_I2S_CHST0			0x78
+#define HDMI_CORE_AV_I2S_CHST1			0x7C
+#define HDMI_CORE_AV_I2S_CHST2			0x80
+#define HDMI_CORE_AV_I2S_CHST4			0x84
+#define HDMI_CORE_AV_I2S_CHST5			0x88
+#define HDMI_CORE_AV_ASRC			0x8C
+#define HDMI_CORE_AV_I2S_IN_LEN			0x90
+#define HDMI_CORE_AV_HDMI_CTRL			0xBC
+#define HDMI_CORE_AV_AUDO_TXSTAT		0xC0
+#define HDMI_CORE_AV_AUD_PAR_BUSCLK_1		0xCC
+#define HDMI_CORE_AV_AUD_PAR_BUSCLK_2		0xD0
+#define HDMI_CORE_AV_AUD_PAR_BUSCLK_3		0xD4
+#define HDMI_CORE_AV_TEST_TXCTRL		0xF0
+#define HDMI_CORE_AV_DPD			0xF4
+#define HDMI_CORE_AV_PB_CTRL1			0xF8
+#define HDMI_CORE_AV_PB_CTRL2			0xFC
+#define HDMI_CORE_AV_AVI_TYPE			0x100
+#define HDMI_CORE_AV_AVI_VERS			0x104
+#define HDMI_CORE_AV_AVI_LEN			0x108
+#define HDMI_CORE_AV_AVI_CHSUM			0x10C
+#define HDMI_CORE_AV_AVI_DBYTE(n)		(n * 4 + 0x110)
+#define HDMI_CORE_AV_SPD_TYPE			0x180
+#define HDMI_CORE_AV_SPD_VERS			0x184
+#define HDMI_CORE_AV_SPD_LEN			0x188
+#define HDMI_CORE_AV_SPD_CHSUM			0x18C
+#define HDMI_CORE_AV_SPD_DBYTE(n)		(n * 4 + 0x190)
+#define HDMI_CORE_AV_AUDIO_TYPE			0x200
+#define HDMI_CORE_AV_AUDIO_VERS			0x204
+#define HDMI_CORE_AV_AUDIO_LEN			0x208
+#define HDMI_CORE_AV_AUDIO_CHSUM		0x20C
+#define HDMI_CORE_AV_AUD_DBYTE(n)		(n * 4 + 0x210)
+#define HDMI_CORE_AV_MPEG_TYPE			0x280
+#define HDMI_CORE_AV_MPEG_VERS			0x284
+#define HDMI_CORE_AV_MPEG_LEN			0x288
+#define HDMI_CORE_AV_MPEG_CHSUM			0x28C
+#define HDMI_CORE_AV_MPEG_DBYTE(n)		(n * 4 + 0x290)
+#define HDMI_CORE_AV_GEN_DBYTE(n)		(n * 4 + 0x300)
+#define HDMI_CORE_AV_CP_BYTE1			0x37C
+#define HDMI_CORE_AV_GEN2_DBYTE(n)		(n * 4 + 0x380)
+#define HDMI_CORE_AV_CEC_ADDR_ID		0x3FC
+
+#define HDMI_CORE_AV_SPD_DBYTE_ELSIZE		0x4
+#define HDMI_CORE_AV_GEN2_DBYTE_ELSIZE		0x4
+#define HDMI_CORE_AV_MPEG_DBYTE_ELSIZE		0x4
+#define HDMI_CORE_AV_GEN_DBYTE_ELSIZE		0x4
+
+#define HDMI_CORE_AV_AVI_DBYTE_NELEMS		15
+#define HDMI_CORE_AV_SPD_DBYTE_NELEMS		27
+#define HDMI_CORE_AV_AUD_DBYTE_NELEMS		10
+#define HDMI_CORE_AV_MPEG_DBYTE_NELEMS		27
+#define HDMI_CORE_AV_GEN_DBYTE_NELEMS		31
+#define HDMI_CORE_AV_GEN2_DBYTE_NELEMS		31
+
+enum hdmi_core_inputbus_width {
+	HDMI_INPUT_8BIT = 0,
+	HDMI_INPUT_10BIT = 1,
+	HDMI_INPUT_12BIT = 2
+};
+
+enum hdmi_core_dither_trunc {
+	HDMI_OUTPUTTRUNCATION_8BIT = 0,
+	HDMI_OUTPUTTRUNCATION_10BIT = 1,
+	HDMI_OUTPUTTRUNCATION_12BIT = 2,
+	HDMI_OUTPUTDITHER_8BIT = 3,
+	HDMI_OUTPUTDITHER_10BIT = 4,
+	HDMI_OUTPUTDITHER_12BIT = 5
+};
+
+enum hdmi_core_deepcolor_ed {
+	HDMI_DEEPCOLORPACKECTDISABLE = 0,
+	HDMI_DEEPCOLORPACKECTENABLE = 1
+};
+
+enum hdmi_core_packet_mode {
+	HDMI_PACKETMODERESERVEDVALUE = 0,
+	HDMI_PACKETMODE24BITPERPIXEL = 4,
+	HDMI_PACKETMODE30BITPERPIXEL = 5,
+	HDMI_PACKETMODE36BITPERPIXEL = 6,
+	HDMI_PACKETMODE48BITPERPIXEL = 7
+};
+
+enum hdmi_core_tclkselclkmult {
+	HDMI_FPLL05IDCK = 0,
+	HDMI_FPLL10IDCK = 1,
+	HDMI_FPLL20IDCK = 2,
+	HDMI_FPLL40IDCK = 3
+};
+
+enum hdmi_core_packet_ctrl {
+	HDMI_PACKETENABLE = 1,
+	HDMI_PACKETDISABLE = 0,
+	HDMI_PACKETREPEATON = 1,
+	HDMI_PACKETREPEATOFF = 0
+};
+
+enum hdmi_audio_i2s_config {
+	HDMI_AUDIO_I2S_MSB_SHIFTED_FIRST = 0,
+	HDMI_AUDIO_I2S_LSB_SHIFTED_FIRST = 1,
+	HDMI_AUDIO_I2S_SCK_EDGE_FALLING = 0,
+	HDMI_AUDIO_I2S_SCK_EDGE_RISING = 1,
+	HDMI_AUDIO_I2S_VBIT_FOR_PCM = 0,
+	HDMI_AUDIO_I2S_VBIT_FOR_COMPRESSED = 1,
+	HDMI_AUDIO_I2S_FIRST_BIT_SHIFT = 0,
+	HDMI_AUDIO_I2S_FIRST_BIT_NO_SHIFT = 1,
+	HDMI_AUDIO_I2S_SD0_EN = 1,
+	HDMI_AUDIO_I2S_SD1_EN = 1 << 1,
+	HDMI_AUDIO_I2S_SD2_EN = 1 << 2,
+	HDMI_AUDIO_I2S_SD3_EN = 1 << 3,
+};
+
+struct hdmi_core_video_config {
+	enum hdmi_core_inputbus_width	ip_bus_width;
+	enum hdmi_core_dither_trunc	op_dither_truc;
+	enum hdmi_core_deepcolor_ed	deep_color_pkt;
+	enum hdmi_core_packet_mode	pkt_mode;
+	enum hdmi_core_hdmi_dvi		hdmi_dvi;
+	enum hdmi_core_tclkselclkmult	tclk_sel_clkmult;
+};
+
+struct hdmi_core_packet_enable_repeat {
+	u32	audio_pkt;
+	u32	audio_pkt_repeat;
+	u32	avi_infoframe;
+	u32	avi_infoframe_repeat;
+	u32	gen_cntrl_pkt;
+	u32	gen_cntrl_pkt_repeat;
+	u32	generic_pkt;
+	u32	generic_pkt_repeat;
+};
+
+int hdmi4_read_edid(struct hdmi_core_data *core, u8 *edid, int len);
+void hdmi4_configure(struct hdmi_core_data *core, struct hdmi_wp_data *wp,
+		struct hdmi_config *cfg);
+void hdmi4_core_dump(struct hdmi_core_data *core, struct seq_file *s);
+int hdmi4_core_init(struct platform_device *pdev, struct hdmi_core_data *core);
+
+#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
+int hdmi4_audio_start(struct hdmi_core_data *core, struct hdmi_wp_data *wp);
+void hdmi4_audio_stop(struct hdmi_core_data *core, struct hdmi_wp_data *wp);
+int hdmi4_audio_config(struct hdmi_core_data *core, struct hdmi_wp_data *wp,
+		struct omap_dss_audio *audio);
+int hdmi4_audio_get_dma_port(u32 *offset, u32 *size);
+#endif
+
+#endif
diff --git a/drivers/video/omap2/dss/hdmi_phy.c b/drivers/video/omap2/dss/hdmi_phy.c
index 16feaa80b3b4..45acb997ac00 100644
--- a/drivers/video/omap2/dss/hdmi_phy.c
+++ b/drivers/video/omap2/dss/hdmi_phy.c
@@ -15,7 +15,7 @@
 #include <video/omapdss.h>
 
 #include "dss.h"
-#include "ti_hdmi.h"
+#include "hdmi.h"
 
 void hdmi_phy_dump(struct hdmi_phy_data *phy, struct seq_file *s)
 {
diff --git a/drivers/video/omap2/dss/hdmi_pll.c b/drivers/video/omap2/dss/hdmi_pll.c
index 6e187e63daae..d3e6e78c0082 100644
--- a/drivers/video/omap2/dss/hdmi_pll.c
+++ b/drivers/video/omap2/dss/hdmi_pll.c
@@ -16,7 +16,7 @@
 #include <video/omapdss.h>
 
 #include "dss.h"
-#include "ti_hdmi.h"
+#include "hdmi.h"
 
 #define HDMI_DEFAULT_REGN 16
 #define HDMI_DEFAULT_REGM2 1
diff --git a/drivers/video/omap2/dss/hdmi_wp.c b/drivers/video/omap2/dss/hdmi_wp.c
index 93039ea970f0..8151d8969a6e 100644
--- a/drivers/video/omap2/dss/hdmi_wp.c
+++ b/drivers/video/omap2/dss/hdmi_wp.c
@@ -15,7 +15,7 @@
 #include <video/omapdss.h>
 
 #include "dss.h"
-#include "ti_hdmi.h"
+#include "hdmi.h"
 
 void hdmi_wp_dump(struct hdmi_wp_data *wp, struct seq_file *s)
 {
diff --git a/drivers/video/omap2/dss/ti_hdmi.h b/drivers/video/omap2/dss/ti_hdmi.h
deleted file mode 100644
index 5034080ccfa9..000000000000
--- a/drivers/video/omap2/dss/ti_hdmi.h
+++ /dev/null
@@ -1,437 +0,0 @@
-/*
- * ti_hdmi.h
- *
- * HDMI driver definition for TI OMAP4, DM81xx, DM38xx  Processor.
- *
- * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com/
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef _TI_HDMI_H
-#define _TI_HDMI_H
-
-#include <linux/delay.h>
-#include <linux/io.h>
-#include <linux/platform_device.h>
-#include <video/omapdss.h>
-
-#include "dss.h"
-
-/* HDMI Wrapper */
-
-#define HDMI_WP_REVISION			0x0
-#define HDMI_WP_SYSCONFIG			0x10
-#define HDMI_WP_IRQSTATUS_RAW			0x24
-#define HDMI_WP_IRQSTATUS			0x28
-#define HDMI_WP_IRQENABLE_SET			0x2C
-#define HDMI_WP_IRQENABLE_CLR			0x30
-#define HDMI_WP_IRQWAKEEN			0x34
-#define HDMI_WP_PWR_CTRL			0x40
-#define HDMI_WP_DEBOUNCE			0x44
-#define HDMI_WP_VIDEO_CFG			0x50
-#define HDMI_WP_VIDEO_SIZE			0x60
-#define HDMI_WP_VIDEO_TIMING_H			0x68
-#define HDMI_WP_VIDEO_TIMING_V			0x6C
-#define HDMI_WP_WP_CLK				0x70
-#define HDMI_WP_AUDIO_CFG			0x80
-#define HDMI_WP_AUDIO_CFG2			0x84
-#define HDMI_WP_AUDIO_CTRL			0x88
-#define HDMI_WP_AUDIO_DATA			0x8C
-
-/* HDMI WP IRQ flags */
-
-#define HDMI_IRQ_OCP_TIMEOUT			(1 << 4)
-#define HDMI_IRQ_AUDIO_FIFO_UNDERFLOW		(1 << 8)
-#define HDMI_IRQ_AUDIO_FIFO_OVERFLOW		(1 << 9)
-#define HDMI_IRQ_AUDIO_FIFO_SAMPLE_REQ		(1 << 10)
-#define HDMI_IRQ_VIDEO_VSYNC			(1 << 16)
-#define HDMI_IRQ_VIDEO_FRAME_DONE		(1 << 17)
-#define HDMI_IRQ_PHY_LINE5V_ASSERT		(1 << 24)
-#define HDMI_IRQ_LINK_CONNECT			(1 << 25)
-#define HDMI_IRQ_LINK_DISCONNECT		(1 << 26)
-#define HDMI_IRQ_PLL_LOCK			(1 << 29)
-#define HDMI_IRQ_PLL_UNLOCK			(1 << 30)
-#define HDMI_IRQ_PLL_RECAL			(1 << 31)
-
-/* HDMI PLL */
-
-#define PLLCTRL_PLL_CONTROL			0x0
-#define PLLCTRL_PLL_STATUS			0x4
-#define PLLCTRL_PLL_GO				0x8
-#define PLLCTRL_CFG1				0xC
-#define PLLCTRL_CFG2				0x10
-#define PLLCTRL_CFG3				0x14
-#define PLLCTRL_SSC_CFG1			0x18
-#define PLLCTRL_SSC_CFG2			0x1C
-#define PLLCTRL_CFG4				0x20
-
-/* HDMI PHY */
-
-#define HDMI_TXPHY_TX_CTRL			0x0
-#define HDMI_TXPHY_DIGITAL_CTRL			0x4
-#define HDMI_TXPHY_POWER_CTRL			0x8
-#define HDMI_TXPHY_PAD_CFG_CTRL			0xC
-
-enum hdmi_pll_pwr {
-	HDMI_PLLPWRCMD_ALLOFF = 0,
-	HDMI_PLLPWRCMD_PLLONLY = 1,
-	HDMI_PLLPWRCMD_BOTHON_ALLCLKS = 2,
-	HDMI_PLLPWRCMD_BOTHON_NOPHYCLK = 3
-};
-
-enum hdmi_phy_pwr {
-	HDMI_PHYPWRCMD_OFF = 0,
-	HDMI_PHYPWRCMD_LDOON = 1,
-	HDMI_PHYPWRCMD_TXON = 2
-};
-
-enum hdmi_core_hdmi_dvi {
-	HDMI_DVI = 0,
-	HDMI_HDMI = 1
-};
-
-enum hdmi_clk_refsel {
-	HDMI_REFSEL_PCLK = 0,
-	HDMI_REFSEL_REF1 = 1,
-	HDMI_REFSEL_REF2 = 2,
-	HDMI_REFSEL_SYSCLK = 3
-};
-
-enum hdmi_packing_mode {
-	HDMI_PACK_10b_RGB_YUV444 = 0,
-	HDMI_PACK_24b_RGB_YUV444_YUV422 = 1,
-	HDMI_PACK_20b_YUV422 = 2,
-	HDMI_PACK_ALREADYPACKED = 7
-};
-
-enum hdmi_stereo_channels {
-	HDMI_AUDIO_STEREO_NOCHANNELS = 0,
-	HDMI_AUDIO_STEREO_ONECHANNEL = 1,
-	HDMI_AUDIO_STEREO_TWOCHANNELS = 2,
-	HDMI_AUDIO_STEREO_THREECHANNELS = 3,
-	HDMI_AUDIO_STEREO_FOURCHANNELS = 4
-};
-
-enum hdmi_audio_type {
-	HDMI_AUDIO_TYPE_LPCM = 0,
-	HDMI_AUDIO_TYPE_IEC = 1
-};
-
-enum hdmi_audio_justify {
-	HDMI_AUDIO_JUSTIFY_LEFT = 0,
-	HDMI_AUDIO_JUSTIFY_RIGHT = 1
-};
-
-enum hdmi_audio_sample_order {
-	HDMI_AUDIO_SAMPLE_RIGHT_FIRST = 0,
-	HDMI_AUDIO_SAMPLE_LEFT_FIRST = 1
-};
-
-enum hdmi_audio_samples_perword {
-	HDMI_AUDIO_ONEWORD_ONESAMPLE = 0,
-	HDMI_AUDIO_ONEWORD_TWOSAMPLES = 1
-};
-
-enum hdmi_audio_sample_size {
-	HDMI_AUDIO_SAMPLE_16BITS = 0,
-	HDMI_AUDIO_SAMPLE_24BITS = 1
-};
-
-enum hdmi_audio_transf_mode {
-	HDMI_AUDIO_TRANSF_DMA = 0,
-	HDMI_AUDIO_TRANSF_IRQ = 1
-};
-
-enum hdmi_audio_blk_strt_end_sig {
-	HDMI_AUDIO_BLOCK_SIG_STARTEND_ON = 0,
-	HDMI_AUDIO_BLOCK_SIG_STARTEND_OFF = 1
-};
-
-enum hdmi_core_audio_layout {
-	HDMI_AUDIO_LAYOUT_2CH = 0,
-	HDMI_AUDIO_LAYOUT_8CH = 1
-};
-
-enum hdmi_core_cts_mode {
-	HDMI_AUDIO_CTS_MODE_HW = 0,
-	HDMI_AUDIO_CTS_MODE_SW = 1
-};
-
-enum hdmi_audio_mclk_mode {
-	HDMI_AUDIO_MCLK_128FS = 0,
-	HDMI_AUDIO_MCLK_256FS = 1,
-	HDMI_AUDIO_MCLK_384FS = 2,
-	HDMI_AUDIO_MCLK_512FS = 3,
-	HDMI_AUDIO_MCLK_768FS = 4,
-	HDMI_AUDIO_MCLK_1024FS = 5,
-	HDMI_AUDIO_MCLK_1152FS = 6,
-	HDMI_AUDIO_MCLK_192FS = 7
-};
-
-/* INFOFRAME_AVI_ and INFOFRAME_AUDIO_ definitions */
-enum hdmi_core_infoframe {
-	HDMI_INFOFRAME_AVI_DB1Y_RGB = 0,
-	HDMI_INFOFRAME_AVI_DB1Y_YUV422 = 1,
-	HDMI_INFOFRAME_AVI_DB1Y_YUV444 = 2,
-	HDMI_INFOFRAME_AVI_DB1A_ACTIVE_FORMAT_OFF = 0,
-	HDMI_INFOFRAME_AVI_DB1A_ACTIVE_FORMAT_ON =  1,
-	HDMI_INFOFRAME_AVI_DB1B_NO = 0,
-	HDMI_INFOFRAME_AVI_DB1B_VERT = 1,
-	HDMI_INFOFRAME_AVI_DB1B_HORI = 2,
-	HDMI_INFOFRAME_AVI_DB1B_VERTHORI = 3,
-	HDMI_INFOFRAME_AVI_DB1S_0 = 0,
-	HDMI_INFOFRAME_AVI_DB1S_1 = 1,
-	HDMI_INFOFRAME_AVI_DB1S_2 = 2,
-	HDMI_INFOFRAME_AVI_DB2C_NO = 0,
-	HDMI_INFOFRAME_AVI_DB2C_ITU601 = 1,
-	HDMI_INFOFRAME_AVI_DB2C_ITU709 = 2,
-	HDMI_INFOFRAME_AVI_DB2C_EC_EXTENDED = 3,
-	HDMI_INFOFRAME_AVI_DB2M_NO = 0,
-	HDMI_INFOFRAME_AVI_DB2M_43 = 1,
-	HDMI_INFOFRAME_AVI_DB2M_169 = 2,
-	HDMI_INFOFRAME_AVI_DB2R_SAME = 8,
-	HDMI_INFOFRAME_AVI_DB2R_43 = 9,
-	HDMI_INFOFRAME_AVI_DB2R_169 = 10,
-	HDMI_INFOFRAME_AVI_DB2R_149 = 11,
-	HDMI_INFOFRAME_AVI_DB3ITC_NO = 0,
-	HDMI_INFOFRAME_AVI_DB3ITC_YES = 1,
-	HDMI_INFOFRAME_AVI_DB3EC_XVYUV601 = 0,
-	HDMI_INFOFRAME_AVI_DB3EC_XVYUV709 = 1,
-	HDMI_INFOFRAME_AVI_DB3Q_DEFAULT = 0,
-	HDMI_INFOFRAME_AVI_DB3Q_LR = 1,
-	HDMI_INFOFRAME_AVI_DB3Q_FR = 2,
-	HDMI_INFOFRAME_AVI_DB3SC_NO = 0,
-	HDMI_INFOFRAME_AVI_DB3SC_HORI = 1,
-	HDMI_INFOFRAME_AVI_DB3SC_VERT = 2,
-	HDMI_INFOFRAME_AVI_DB3SC_HORIVERT = 3,
-	HDMI_INFOFRAME_AVI_DB5PR_NO = 0,
-	HDMI_INFOFRAME_AVI_DB5PR_2 = 1,
-	HDMI_INFOFRAME_AVI_DB5PR_3 = 2,
-	HDMI_INFOFRAME_AVI_DB5PR_4 = 3,
-	HDMI_INFOFRAME_AVI_DB5PR_5 = 4,
-	HDMI_INFOFRAME_AVI_DB5PR_6 = 5,
-	HDMI_INFOFRAME_AVI_DB5PR_7 = 6,
-	HDMI_INFOFRAME_AVI_DB5PR_8 = 7,
-	HDMI_INFOFRAME_AVI_DB5PR_9 = 8,
-	HDMI_INFOFRAME_AVI_DB5PR_10 = 9,
-};
-
-struct hdmi_cm {
-	int	code;
-	int	mode;
-};
-
-struct hdmi_video_format {
-	enum hdmi_packing_mode	packing_mode;
-	u32			y_res;	/* Line per panel */
-	u32			x_res;	/* pixel per line */
-};
-
-struct hdmi_config {
-	struct omap_video_timings timings;
-	struct hdmi_cm cm;
-};
-
-/* HDMI PLL structure */
-struct hdmi_pll_info {
-	u16 regn;
-	u16 regm;
-	u32 regmf;
-	u16 regm2;
-	u16 regsd;
-	u16 dcofreq;
-	enum hdmi_clk_refsel refsel;
-};
-
-struct hdmi_audio_format {
-	enum hdmi_stereo_channels		stereo_channels;
-	u8					active_chnnls_msk;
-	enum hdmi_audio_type			type;
-	enum hdmi_audio_justify			justification;
-	enum hdmi_audio_sample_order		sample_order;
-	enum hdmi_audio_samples_perword		samples_per_word;
-	enum hdmi_audio_sample_size		sample_size;
-	enum hdmi_audio_blk_strt_end_sig	en_sig_blk_strt_end;
-};
-
-struct hdmi_audio_dma {
-	u8				transfer_size;
-	u8				block_size;
-	enum hdmi_audio_transf_mode	mode;
-	u16				fifo_threshold;
-};
-
-struct hdmi_core_audio_i2s_config {
-	u8 in_length_bits;
-	u8 justification;
-	u8 sck_edge_mode;
-	u8 vbit;
-	u8 direction;
-	u8 shift;
-	u8 active_sds;
-};
-
-struct hdmi_core_audio_config {
-	struct hdmi_core_audio_i2s_config	i2s_cfg;
-	struct snd_aes_iec958			*iec60958_cfg;
-	bool					fs_override;
-	u32					n;
-	u32					cts;
-	u32					aud_par_busclk;
-	enum hdmi_core_audio_layout		layout;
-	enum hdmi_core_cts_mode			cts_mode;
-	bool					use_mclk;
-	enum hdmi_audio_mclk_mode		mclk_mode;
-	bool					en_acr_pkt;
-	bool					en_dsd_audio;
-	bool					en_parallel_aud_input;
-	bool					en_spdif;
-};
-
-/*
- * Refer to section 8.2 in HDMI 1.3 specification for
- * details about infoframe databytes
- */
-struct hdmi_core_infoframe_avi {
-	/* Y0, Y1 rgb,yCbCr */
-	u8	db1_format;
-	/* A0  Active information Present */
-	u8	db1_active_info;
-	/* B0, B1 Bar info data valid */
-	u8	db1_bar_info_dv;
-	/* S0, S1 scan information */
-	u8	db1_scan_info;
-	/* C0, C1 colorimetry */
-	u8	db2_colorimetry;
-	/* M0, M1 Aspect ratio (4:3, 16:9) */
-	u8	db2_aspect_ratio;
-	/* R0...R3 Active format aspect ratio */
-	u8	db2_active_fmt_ar;
-	/* ITC IT content. */
-	u8	db3_itc;
-	/* EC0, EC1, EC2 Extended colorimetry */
-	u8	db3_ec;
-	/* Q1, Q0 Quantization range */
-	u8	db3_q_range;
-	/* SC1, SC0 Non-uniform picture scaling */
-	u8	db3_nup_scaling;
-	/* VIC0..6 Video format identification */
-	u8	db4_videocode;
-	/* PR0..PR3 Pixel repetition factor */
-	u8	db5_pixel_repeat;
-	/* Line number end of top bar */
-	u16	db6_7_line_eoftop;
-	/* Line number start of bottom bar */
-	u16	db8_9_line_sofbottom;
-	/* Pixel number end of left bar */
-	u16	db10_11_pixel_eofleft;
-	/* Pixel number start of right bar */
-	u16	db12_13_pixel_sofright;
-};
-
-struct hdmi_wp_data {
-	void __iomem *base;
-};
-
-struct hdmi_pll_data {
-	void __iomem *base;
-
-	struct hdmi_pll_info info;
-};
-
-struct hdmi_phy_data {
-	void __iomem *base;
-
-	int irq;
-};
-
-struct hdmi_core_data {
-	void __iomem *base;
-
-	struct hdmi_core_infoframe_avi avi_cfg;
-};
-
-static inline void hdmi_write_reg(void __iomem *base_addr, const u16 idx,
-		u32 val)
-{
-	__raw_writel(val, base_addr + idx);
-}
-
-static inline u32 hdmi_read_reg(void __iomem *base_addr, const u16 idx)
-{
-	return __raw_readl(base_addr + idx);
-}
-
-#define REG_FLD_MOD(base, idx, val, start, end) \
-	hdmi_write_reg(base, idx, FLD_MOD(hdmi_read_reg(base, idx),\
-							val, start, end))
-#define REG_GET(base, idx, start, end) \
-	FLD_GET(hdmi_read_reg(base, idx), start, end)
-
-static inline int hdmi_wait_for_bit_change(void __iomem *base_addr,
-		const u16 idx, int b2, int b1, u32 val)
-{
-	u32 t = 0;
-	while (val != REG_GET(base_addr, idx, b2, b1)) {
-		udelay(1);
-		if (t++ > 10000)
-			return !val;
-	}
-	return val;
-}
-
-/* HDMI wrapper funcs */
-int hdmi_wp_video_start(struct hdmi_wp_data *wp);
-void hdmi_wp_video_stop(struct hdmi_wp_data *wp);
-void hdmi_wp_dump(struct hdmi_wp_data *wp, struct seq_file *s);
-u32 hdmi_wp_get_irqstatus(struct hdmi_wp_data *wp);
-void hdmi_wp_set_irqstatus(struct hdmi_wp_data *wp, u32 irqstatus);
-void hdmi_wp_set_irqenable(struct hdmi_wp_data *wp, u32 mask);
-void hdmi_wp_clear_irqenable(struct hdmi_wp_data *wp, u32 mask);
-int hdmi_wp_set_phy_pwr(struct hdmi_wp_data *wp, enum hdmi_phy_pwr val);
-int hdmi_wp_set_pll_pwr(struct hdmi_wp_data *wp, enum hdmi_pll_pwr val);
-void hdmi_wp_video_config_format(struct hdmi_wp_data *wp,
-		struct hdmi_video_format *video_fmt);
-void hdmi_wp_video_config_interface(struct hdmi_wp_data *wp,
-		struct omap_video_timings *timings);
-void hdmi_wp_video_config_timing(struct hdmi_wp_data *wp,
-		struct omap_video_timings *timings);
-void hdmi_wp_init_vid_fmt_timings(struct hdmi_video_format *video_fmt,
-		struct omap_video_timings *timings, struct hdmi_config *param);
-int hdmi_wp_init(struct platform_device *pdev, struct hdmi_wp_data *wp);
-
-/* HDMI PLL funcs */
-int hdmi_pll_enable(struct hdmi_pll_data *pll, struct hdmi_wp_data *wp);
-void hdmi_pll_disable(struct hdmi_pll_data *pll, struct hdmi_wp_data *wp);
-void hdmi_pll_dump(struct hdmi_pll_data *pll, struct seq_file *s);
-void hdmi_pll_compute(struct hdmi_pll_data *pll, unsigned long clkin, int phy);
-int hdmi_pll_init(struct platform_device *pdev, struct hdmi_pll_data *pll);
-
-/* HDMI PHY funcs */
-int hdmi_phy_enable(struct hdmi_phy_data *phy, struct hdmi_wp_data *wp,
-		struct hdmi_config *cfg);
-void hdmi_phy_disable(struct hdmi_phy_data *phy, struct hdmi_wp_data *wp);
-void hdmi_phy_dump(struct hdmi_phy_data *phy, struct seq_file *s);
-int hdmi_phy_init(struct platform_device *pdev, struct hdmi_phy_data *phy);
-
-#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-int hdmi_compute_acr(u32 sample_freq, u32 *n, u32 *cts);
-int hdmi_wp_audio_enable(struct hdmi_wp_data *wp, bool enable);
-int hdmi_wp_audio_core_req_enable(struct hdmi_wp_data *wp, bool enable);
-void hdmi_wp_audio_config_format(struct hdmi_wp_data *wp,
-		struct hdmi_audio_format *aud_fmt);
-void hdmi_wp_audio_config_dma(struct hdmi_wp_data *wp,
-		struct hdmi_audio_dma *aud_dma);
-#endif
-#endif
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
deleted file mode 100644
index 93a99fd080af..000000000000
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.c
+++ /dev/null
@@ -1,1034 +0,0 @@
-/*
- * ti_hdmi_4xxx_ip.c
- *
- * HDMI TI81xx, TI38xx, TI OMAP4 etc IP driver Library
- * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com/
- * Authors: Yong Zhi
- *	Mythri pk <mythripk@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/interrupt.h>
-#include <linux/mutex.h>
-#include <linux/delay.h>
-#include <linux/platform_device.h>
-#include <linux/string.h>
-#include <linux/seq_file.h>
-#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-#include <sound/asound.h>
-#include <sound/asoundef.h>
-#endif
-
-#include "ti_hdmi_4xxx_ip.h"
-#include "dss_features.h"
-
-#define HDMI_CORE_AV		0x500
-
-static inline void __iomem *hdmi_av_base(struct hdmi_core_data *core)
-{
-	return core->base + HDMI_CORE_AV;
-}
-
-static int hdmi_core_ddc_init(struct hdmi_core_data *core)
-{
-	void __iomem *base = core->base;
-
-	/* Turn on CLK for DDC */
-	REG_FLD_MOD(base, HDMI_CORE_AV_DPD, 0x7, 2, 0);
-
-	/* IN_PROG */
-	if (REG_GET(base, HDMI_CORE_DDC_STATUS, 4, 4) == 1) {
-		/* Abort transaction */
-		REG_FLD_MOD(base, HDMI_CORE_DDC_CMD, 0xf, 3, 0);
-		/* IN_PROG */
-		if (hdmi_wait_for_bit_change(base, HDMI_CORE_DDC_STATUS,
-					4, 4, 0) != 0) {
-			DSSERR("Timeout aborting DDC transaction\n");
-			return -ETIMEDOUT;
-		}
-	}
-
-	/* Clk SCL Devices */
-	REG_FLD_MOD(base, HDMI_CORE_DDC_CMD, 0xA, 3, 0);
-
-	/* HDMI_CORE_DDC_STATUS_IN_PROG */
-	if (hdmi_wait_for_bit_change(base, HDMI_CORE_DDC_STATUS,
-				4, 4, 0) != 0) {
-		DSSERR("Timeout starting SCL clock\n");
-		return -ETIMEDOUT;
-	}
-
-	/* Clear FIFO */
-	REG_FLD_MOD(base, HDMI_CORE_DDC_CMD, 0x9, 3, 0);
-
-	/* HDMI_CORE_DDC_STATUS_IN_PROG */
-	if (hdmi_wait_for_bit_change(base, HDMI_CORE_DDC_STATUS,
-				4, 4, 0) != 0) {
-		DSSERR("Timeout clearing DDC fifo\n");
-		return -ETIMEDOUT;
-	}
-
-	return 0;
-}
-
-static int hdmi_core_ddc_edid(struct hdmi_core_data *core,
-		u8 *pedid, int ext)
-{
-	void __iomem *base = core->base;
-	u32 i;
-	char checksum;
-	u32 offset = 0;
-
-	/* HDMI_CORE_DDC_STATUS_IN_PROG */
-	if (hdmi_wait_for_bit_change(base, HDMI_CORE_DDC_STATUS,
-				4, 4, 0) != 0) {
-		DSSERR("Timeout waiting DDC to be ready\n");
-		return -ETIMEDOUT;
-	}
-
-	if (ext % 2 != 0)
-		offset = 0x80;
-
-	/* Load Segment Address Register */
-	REG_FLD_MOD(base, HDMI_CORE_DDC_SEGM, ext / 2, 7, 0);
-
-	/* Load Slave Address Register */
-	REG_FLD_MOD(base, HDMI_CORE_DDC_ADDR, 0xA0 >> 1, 7, 1);
-
-	/* Load Offset Address Register */
-	REG_FLD_MOD(base, HDMI_CORE_DDC_OFFSET, offset, 7, 0);
-
-	/* Load Byte Count */
-	REG_FLD_MOD(base, HDMI_CORE_DDC_COUNT1, 0x80, 7, 0);
-	REG_FLD_MOD(base, HDMI_CORE_DDC_COUNT2, 0x0, 1, 0);
-
-	/* Set DDC_CMD */
-	if (ext)
-		REG_FLD_MOD(base, HDMI_CORE_DDC_CMD, 0x4, 3, 0);
-	else
-		REG_FLD_MOD(base, HDMI_CORE_DDC_CMD, 0x2, 3, 0);
-
-	/* HDMI_CORE_DDC_STATUS_BUS_LOW */
-	if (REG_GET(base, HDMI_CORE_DDC_STATUS, 6, 6) == 1) {
-		pr_err("I2C Bus Low?\n");
-		return -EIO;
-	}
-	/* HDMI_CORE_DDC_STATUS_NO_ACK */
-	if (REG_GET(base, HDMI_CORE_DDC_STATUS, 5, 5) == 1) {
-		pr_err("I2C No Ack\n");
-		return -EIO;
-	}
-
-	for (i = 0; i < 0x80; ++i) {
-		int t;
-
-		/* IN_PROG */
-		if (REG_GET(base, HDMI_CORE_DDC_STATUS, 4, 4) == 0) {
-			DSSERR("operation stopped when reading edid\n");
-			return -EIO;
-		}
-
-		t = 0;
-		/* FIFO_EMPTY */
-		while (REG_GET(base, HDMI_CORE_DDC_STATUS, 2, 2) == 1) {
-			if (t++ > 10000) {
-				DSSERR("timeout reading edid\n");
-				return -ETIMEDOUT;
-			}
-			udelay(1);
-		}
-
-		pedid[i] = REG_GET(base, HDMI_CORE_DDC_DATA, 7, 0);
-	}
-
-	checksum = 0;
-	for (i = 0; i < 0x80; ++i)
-		checksum += pedid[i];
-
-	if (checksum != 0) {
-		pr_err("E-EDID checksum failed!!\n");
-		return -EIO;
-	}
-
-	return 0;
-}
-
-int hdmi4_read_edid(struct hdmi_core_data *core, u8 *edid, int len)
-{
-	int r, l;
-
-	if (len < 128)
-		return -EINVAL;
-
-	r = hdmi_core_ddc_init(core);
-	if (r)
-		return r;
-
-	r = hdmi_core_ddc_edid(core, edid, 0);
-	if (r)
-		return r;
-
-	l = 128;
-
-	if (len >= 128 * 2 && edid[0x7e] > 0) {
-		r = hdmi_core_ddc_edid(core, edid + 0x80, 1);
-		if (r)
-			return r;
-		l += 128;
-	}
-
-	return l;
-}
-
-static void hdmi_core_init(struct hdmi_core_video_config *video_cfg,
-			struct hdmi_core_infoframe_avi *avi_cfg,
-			struct hdmi_core_packet_enable_repeat *repeat_cfg)
-{
-	pr_debug("Enter hdmi_core_init\n");
-
-	/* video core */
-	video_cfg->ip_bus_width = HDMI_INPUT_8BIT;
-	video_cfg->op_dither_truc = HDMI_OUTPUTTRUNCATION_8BIT;
-	video_cfg->deep_color_pkt = HDMI_DEEPCOLORPACKECTDISABLE;
-	video_cfg->pkt_mode = HDMI_PACKETMODERESERVEDVALUE;
-	video_cfg->hdmi_dvi = HDMI_DVI;
-	video_cfg->tclk_sel_clkmult = HDMI_FPLL10IDCK;
-
-	/* info frame */
-	avi_cfg->db1_format = 0;
-	avi_cfg->db1_active_info = 0;
-	avi_cfg->db1_bar_info_dv = 0;
-	avi_cfg->db1_scan_info = 0;
-	avi_cfg->db2_colorimetry = 0;
-	avi_cfg->db2_aspect_ratio = 0;
-	avi_cfg->db2_active_fmt_ar = 0;
-	avi_cfg->db3_itc = 0;
-	avi_cfg->db3_ec = 0;
-	avi_cfg->db3_q_range = 0;
-	avi_cfg->db3_nup_scaling = 0;
-	avi_cfg->db4_videocode = 0;
-	avi_cfg->db5_pixel_repeat = 0;
-	avi_cfg->db6_7_line_eoftop = 0 ;
-	avi_cfg->db8_9_line_sofbottom = 0;
-	avi_cfg->db10_11_pixel_eofleft = 0;
-	avi_cfg->db12_13_pixel_sofright = 0;
-
-	/* packet enable and repeat */
-	repeat_cfg->audio_pkt = 0;
-	repeat_cfg->audio_pkt_repeat = 0;
-	repeat_cfg->avi_infoframe = 0;
-	repeat_cfg->avi_infoframe_repeat = 0;
-	repeat_cfg->gen_cntrl_pkt = 0;
-	repeat_cfg->gen_cntrl_pkt_repeat = 0;
-	repeat_cfg->generic_pkt = 0;
-	repeat_cfg->generic_pkt_repeat = 0;
-}
-
-static void hdmi_core_powerdown_disable(struct hdmi_core_data *core)
-{
-	pr_debug("Enter hdmi_core_powerdown_disable\n");
-	REG_FLD_MOD(core->base, HDMI_CORE_SYS_SYS_CTRL1, 0x0, 0, 0);
-}
-
-static void hdmi_core_swreset_release(struct hdmi_core_data *core)
-{
-	pr_debug("Enter hdmi_core_swreset_release\n");
-	REG_FLD_MOD(core->base, HDMI_CORE_SYS_SRST, 0x0, 0, 0);
-}
-
-static void hdmi_core_swreset_assert(struct hdmi_core_data *core)
-{
-	pr_debug("Enter hdmi_core_swreset_assert\n");
-	REG_FLD_MOD(core->base, HDMI_CORE_SYS_SRST, 0x1, 0, 0);
-}
-
-/* HDMI_CORE_VIDEO_CONFIG */
-static void hdmi_core_video_config(struct hdmi_core_data *core,
-				struct hdmi_core_video_config *cfg)
-{
-	u32 r = 0;
-	void __iomem *core_sys_base = core->base;
-	void __iomem *core_av_base = hdmi_av_base(core);
-
-	/* sys_ctrl1 default configuration not tunable */
-	r = hdmi_read_reg(core_sys_base, HDMI_CORE_SYS_SYS_CTRL1);
-	r = FLD_MOD(r, HDMI_CORE_SYS_SYS_CTRL1_VEN_FOLLOWVSYNC, 5, 5);
-	r = FLD_MOD(r, HDMI_CORE_SYS_SYS_CTRL1_HEN_FOLLOWHSYNC, 4, 4);
-	r = FLD_MOD(r, HDMI_CORE_SYS_SYS_CTRL1_BSEL_24BITBUS, 2, 2);
-	r = FLD_MOD(r, HDMI_CORE_SYS_SYS_CTRL1_EDGE_RISINGEDGE, 1, 1);
-	hdmi_write_reg(core_sys_base, HDMI_CORE_SYS_SYS_CTRL1, r);
-
-	REG_FLD_MOD(core_sys_base,
-			HDMI_CORE_SYS_VID_ACEN, cfg->ip_bus_width, 7, 6);
-
-	/* Vid_Mode */
-	r = hdmi_read_reg(core_sys_base, HDMI_CORE_SYS_VID_MODE);
-
-	/* dither truncation configuration */
-	if (cfg->op_dither_truc > HDMI_OUTPUTTRUNCATION_12BIT) {
-		r = FLD_MOD(r, cfg->op_dither_truc - 3, 7, 6);
-		r = FLD_MOD(r, 1, 5, 5);
-	} else {
-		r = FLD_MOD(r, cfg->op_dither_truc, 7, 6);
-		r = FLD_MOD(r, 0, 5, 5);
-	}
-	hdmi_write_reg(core_sys_base, HDMI_CORE_SYS_VID_MODE, r);
-
-	/* HDMI_Ctrl */
-	r = hdmi_read_reg(core_av_base, HDMI_CORE_AV_HDMI_CTRL);
-	r = FLD_MOD(r, cfg->deep_color_pkt, 6, 6);
-	r = FLD_MOD(r, cfg->pkt_mode, 5, 3);
-	r = FLD_MOD(r, cfg->hdmi_dvi, 0, 0);
-	hdmi_write_reg(core_av_base, HDMI_CORE_AV_HDMI_CTRL, r);
-
-	/* TMDS_CTRL */
-	REG_FLD_MOD(core_sys_base,
-			HDMI_CORE_SYS_TMDS_CTRL, cfg->tclk_sel_clkmult, 6, 5);
-}
-
-static void hdmi_core_aux_infoframe_avi_config(struct hdmi_core_data *core)
-{
-	u32 val;
-	char sum = 0, checksum = 0;
-	void __iomem *av_base = hdmi_av_base(core);
-	struct hdmi_core_infoframe_avi info_avi = core->avi_cfg;
-
-	sum += 0x82 + 0x002 + 0x00D;
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_TYPE, 0x082);
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_VERS, 0x002);
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_LEN, 0x00D);
-
-	val = (info_avi.db1_format << 5) |
-		(info_avi.db1_active_info << 4) |
-		(info_avi.db1_bar_info_dv << 2) |
-		(info_avi.db1_scan_info);
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(0), val);
-	sum += val;
-
-	val = (info_avi.db2_colorimetry << 6) |
-		(info_avi.db2_aspect_ratio << 4) |
-		(info_avi.db2_active_fmt_ar);
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(1), val);
-	sum += val;
-
-	val = (info_avi.db3_itc << 7) |
-		(info_avi.db3_ec << 4) |
-		(info_avi.db3_q_range << 2) |
-		(info_avi.db3_nup_scaling);
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(2), val);
-	sum += val;
-
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(3),
-					info_avi.db4_videocode);
-	sum += info_avi.db4_videocode;
-
-	val = info_avi.db5_pixel_repeat;
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(4), val);
-	sum += val;
-
-	val = info_avi.db6_7_line_eoftop & 0x00FF;
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(5), val);
-	sum += val;
-
-	val = ((info_avi.db6_7_line_eoftop >> 8) & 0x00FF);
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(6), val);
-	sum += val;
-
-	val = info_avi.db8_9_line_sofbottom & 0x00FF;
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(7), val);
-	sum += val;
-
-	val = ((info_avi.db8_9_line_sofbottom >> 8) & 0x00FF);
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(8), val);
-	sum += val;
-
-	val = info_avi.db10_11_pixel_eofleft & 0x00FF;
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(9), val);
-	sum += val;
-
-	val = ((info_avi.db10_11_pixel_eofleft >> 8) & 0x00FF);
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(10), val);
-	sum += val;
-
-	val = info_avi.db12_13_pixel_sofright & 0x00FF;
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(11), val);
-	sum += val;
-
-	val = ((info_avi.db12_13_pixel_sofright >> 8) & 0x00FF);
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_DBYTE(12), val);
-	sum += val;
-
-	checksum = 0x100 - sum;
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AVI_CHSUM, checksum);
-}
-
-static void hdmi_core_av_packet_config(struct hdmi_core_data *core,
-		struct hdmi_core_packet_enable_repeat repeat_cfg)
-{
-	/* enable/repeat the infoframe */
-	hdmi_write_reg(hdmi_av_base(core), HDMI_CORE_AV_PB_CTRL1,
-		(repeat_cfg.audio_pkt << 5) |
-		(repeat_cfg.audio_pkt_repeat << 4) |
-		(repeat_cfg.avi_infoframe << 1) |
-		(repeat_cfg.avi_infoframe_repeat));
-
-	/* enable/repeat the packet */
-	hdmi_write_reg(hdmi_av_base(core), HDMI_CORE_AV_PB_CTRL2,
-		(repeat_cfg.gen_cntrl_pkt << 3) |
-		(repeat_cfg.gen_cntrl_pkt_repeat << 2) |
-		(repeat_cfg.generic_pkt << 1) |
-		(repeat_cfg.generic_pkt_repeat));
-}
-
-void hdmi4_configure(struct hdmi_core_data *core,
-	struct hdmi_wp_data *wp, struct hdmi_config *cfg)
-{
-	/* HDMI */
-	struct omap_video_timings video_timing;
-	struct hdmi_video_format video_format;
-	/* HDMI core */
-	struct hdmi_core_infoframe_avi *avi_cfg = &core->avi_cfg;
-	struct hdmi_core_video_config v_core_cfg;
-	struct hdmi_core_packet_enable_repeat repeat_cfg;
-
-	hdmi_core_init(&v_core_cfg, avi_cfg, &repeat_cfg);
-
-	hdmi_wp_init_vid_fmt_timings(&video_format, &video_timing, cfg);
-
-	hdmi_wp_video_config_timing(wp, &video_timing);
-
-	/* video config */
-	video_format.packing_mode = HDMI_PACK_24b_RGB_YUV444_YUV422;
-
-	hdmi_wp_video_config_format(wp, &video_format);
-
-	hdmi_wp_video_config_interface(wp, &video_timing);
-
-	/*
-	 * configure core video part
-	 * set software reset in the core
-	 */
-	hdmi_core_swreset_assert(core);
-
-	/* power down off */
-	hdmi_core_powerdown_disable(core);
-
-	v_core_cfg.pkt_mode = HDMI_PACKETMODE24BITPERPIXEL;
-	v_core_cfg.hdmi_dvi = cfg->cm.mode;
-
-	hdmi_core_video_config(core, &v_core_cfg);
-
-	/* release software reset in the core */
-	hdmi_core_swreset_release(core);
-
-	/*
-	 * configure packet
-	 * info frame video see doc CEA861-D page 65
-	 */
-	avi_cfg->db1_format = HDMI_INFOFRAME_AVI_DB1Y_RGB;
-	avi_cfg->db1_active_info =
-			HDMI_INFOFRAME_AVI_DB1A_ACTIVE_FORMAT_OFF;
-	avi_cfg->db1_bar_info_dv = HDMI_INFOFRAME_AVI_DB1B_NO;
-	avi_cfg->db1_scan_info = HDMI_INFOFRAME_AVI_DB1S_0;
-	avi_cfg->db2_colorimetry = HDMI_INFOFRAME_AVI_DB2C_NO;
-	avi_cfg->db2_aspect_ratio = HDMI_INFOFRAME_AVI_DB2M_NO;
-	avi_cfg->db2_active_fmt_ar = HDMI_INFOFRAME_AVI_DB2R_SAME;
-	avi_cfg->db3_itc = HDMI_INFOFRAME_AVI_DB3ITC_NO;
-	avi_cfg->db3_ec = HDMI_INFOFRAME_AVI_DB3EC_XVYUV601;
-	avi_cfg->db3_q_range = HDMI_INFOFRAME_AVI_DB3Q_DEFAULT;
-	avi_cfg->db3_nup_scaling = HDMI_INFOFRAME_AVI_DB3SC_NO;
-	avi_cfg->db4_videocode = cfg->cm.code;
-	avi_cfg->db5_pixel_repeat = HDMI_INFOFRAME_AVI_DB5PR_NO;
-	avi_cfg->db6_7_line_eoftop = 0;
-	avi_cfg->db8_9_line_sofbottom = 0;
-	avi_cfg->db10_11_pixel_eofleft = 0;
-	avi_cfg->db12_13_pixel_sofright = 0;
-
-	hdmi_core_aux_infoframe_avi_config(core);
-
-	/* enable/repeat the infoframe */
-	repeat_cfg.avi_infoframe = HDMI_PACKETENABLE;
-	repeat_cfg.avi_infoframe_repeat = HDMI_PACKETREPEATON;
-	/* wakeup */
-	repeat_cfg.audio_pkt = HDMI_PACKETENABLE;
-	repeat_cfg.audio_pkt_repeat = HDMI_PACKETREPEATON;
-	hdmi_core_av_packet_config(core, repeat_cfg);
-}
-
-void hdmi4_core_dump(struct hdmi_core_data *core, struct seq_file *s)
-{
-	int i;
-
-#define CORE_REG(i, name) name(i)
-#define DUMPCORE(r) seq_printf(s, "%-35s %08x\n", #r,\
-		hdmi_read_reg(core->base, r))
-#define DUMPCOREAV(r) seq_printf(s, "%-35s %08x\n", #r,\
-		hdmi_read_reg(hdmi_av_base(core), r))
-#define DUMPCOREAV2(i, r) seq_printf(s, "%s[%d]%*s %08x\n", #r, i, \
-		(i < 10) ? 32 - (int)strlen(#r) : 31 - (int)strlen(#r), " ", \
-		hdmi_read_reg(hdmi_av_base(core), CORE_REG(i, r)))
-
-	DUMPCORE(HDMI_CORE_SYS_VND_IDL);
-	DUMPCORE(HDMI_CORE_SYS_DEV_IDL);
-	DUMPCORE(HDMI_CORE_SYS_DEV_IDH);
-	DUMPCORE(HDMI_CORE_SYS_DEV_REV);
-	DUMPCORE(HDMI_CORE_SYS_SRST);
-	DUMPCORE(HDMI_CORE_SYS_SYS_CTRL1);
-	DUMPCORE(HDMI_CORE_SYS_SYS_STAT);
-	DUMPCORE(HDMI_CORE_SYS_SYS_CTRL3);
-	DUMPCORE(HDMI_CORE_SYS_DE_DLY);
-	DUMPCORE(HDMI_CORE_SYS_DE_CTRL);
-	DUMPCORE(HDMI_CORE_SYS_DE_TOP);
-	DUMPCORE(HDMI_CORE_SYS_DE_CNTL);
-	DUMPCORE(HDMI_CORE_SYS_DE_CNTH);
-	DUMPCORE(HDMI_CORE_SYS_DE_LINL);
-	DUMPCORE(HDMI_CORE_SYS_DE_LINH_1);
-	DUMPCORE(HDMI_CORE_SYS_HRES_L);
-	DUMPCORE(HDMI_CORE_SYS_HRES_H);
-	DUMPCORE(HDMI_CORE_SYS_VRES_L);
-	DUMPCORE(HDMI_CORE_SYS_VRES_H);
-	DUMPCORE(HDMI_CORE_SYS_IADJUST);
-	DUMPCORE(HDMI_CORE_SYS_POLDETECT);
-	DUMPCORE(HDMI_CORE_SYS_HWIDTH1);
-	DUMPCORE(HDMI_CORE_SYS_HWIDTH2);
-	DUMPCORE(HDMI_CORE_SYS_VWIDTH);
-	DUMPCORE(HDMI_CORE_SYS_VID_CTRL);
-	DUMPCORE(HDMI_CORE_SYS_VID_ACEN);
-	DUMPCORE(HDMI_CORE_SYS_VID_MODE);
-	DUMPCORE(HDMI_CORE_SYS_VID_BLANK1);
-	DUMPCORE(HDMI_CORE_SYS_VID_BLANK3);
-	DUMPCORE(HDMI_CORE_SYS_VID_BLANK1);
-	DUMPCORE(HDMI_CORE_SYS_DC_HEADER);
-	DUMPCORE(HDMI_CORE_SYS_VID_DITHER);
-	DUMPCORE(HDMI_CORE_SYS_RGB2XVYCC_CT);
-	DUMPCORE(HDMI_CORE_SYS_R2Y_COEFF_LOW);
-	DUMPCORE(HDMI_CORE_SYS_R2Y_COEFF_UP);
-	DUMPCORE(HDMI_CORE_SYS_G2Y_COEFF_LOW);
-	DUMPCORE(HDMI_CORE_SYS_G2Y_COEFF_UP);
-	DUMPCORE(HDMI_CORE_SYS_B2Y_COEFF_LOW);
-	DUMPCORE(HDMI_CORE_SYS_B2Y_COEFF_UP);
-	DUMPCORE(HDMI_CORE_SYS_R2CB_COEFF_LOW);
-	DUMPCORE(HDMI_CORE_SYS_R2CB_COEFF_UP);
-	DUMPCORE(HDMI_CORE_SYS_G2CB_COEFF_LOW);
-	DUMPCORE(HDMI_CORE_SYS_G2CB_COEFF_UP);
-	DUMPCORE(HDMI_CORE_SYS_B2CB_COEFF_LOW);
-	DUMPCORE(HDMI_CORE_SYS_B2CB_COEFF_UP);
-	DUMPCORE(HDMI_CORE_SYS_R2CR_COEFF_LOW);
-	DUMPCORE(HDMI_CORE_SYS_R2CR_COEFF_UP);
-	DUMPCORE(HDMI_CORE_SYS_G2CR_COEFF_LOW);
-	DUMPCORE(HDMI_CORE_SYS_G2CR_COEFF_UP);
-	DUMPCORE(HDMI_CORE_SYS_B2CR_COEFF_LOW);
-	DUMPCORE(HDMI_CORE_SYS_B2CR_COEFF_UP);
-	DUMPCORE(HDMI_CORE_SYS_RGB_OFFSET_LOW);
-	DUMPCORE(HDMI_CORE_SYS_RGB_OFFSET_UP);
-	DUMPCORE(HDMI_CORE_SYS_Y_OFFSET_LOW);
-	DUMPCORE(HDMI_CORE_SYS_Y_OFFSET_UP);
-	DUMPCORE(HDMI_CORE_SYS_CBCR_OFFSET_LOW);
-	DUMPCORE(HDMI_CORE_SYS_CBCR_OFFSET_UP);
-	DUMPCORE(HDMI_CORE_SYS_INTR_STATE);
-	DUMPCORE(HDMI_CORE_SYS_INTR1);
-	DUMPCORE(HDMI_CORE_SYS_INTR2);
-	DUMPCORE(HDMI_CORE_SYS_INTR3);
-	DUMPCORE(HDMI_CORE_SYS_INTR4);
-	DUMPCORE(HDMI_CORE_SYS_INTR_UNMASK1);
-	DUMPCORE(HDMI_CORE_SYS_INTR_UNMASK2);
-	DUMPCORE(HDMI_CORE_SYS_INTR_UNMASK3);
-	DUMPCORE(HDMI_CORE_SYS_INTR_UNMASK4);
-	DUMPCORE(HDMI_CORE_SYS_INTR_CTRL);
-	DUMPCORE(HDMI_CORE_SYS_TMDS_CTRL);
-
-	DUMPCORE(HDMI_CORE_DDC_ADDR);
-	DUMPCORE(HDMI_CORE_DDC_SEGM);
-	DUMPCORE(HDMI_CORE_DDC_OFFSET);
-	DUMPCORE(HDMI_CORE_DDC_COUNT1);
-	DUMPCORE(HDMI_CORE_DDC_COUNT2);
-	DUMPCORE(HDMI_CORE_DDC_STATUS);
-	DUMPCORE(HDMI_CORE_DDC_CMD);
-	DUMPCORE(HDMI_CORE_DDC_DATA);
-
-	DUMPCOREAV(HDMI_CORE_AV_ACR_CTRL);
-	DUMPCOREAV(HDMI_CORE_AV_FREQ_SVAL);
-	DUMPCOREAV(HDMI_CORE_AV_N_SVAL1);
-	DUMPCOREAV(HDMI_CORE_AV_N_SVAL2);
-	DUMPCOREAV(HDMI_CORE_AV_N_SVAL3);
-	DUMPCOREAV(HDMI_CORE_AV_CTS_SVAL1);
-	DUMPCOREAV(HDMI_CORE_AV_CTS_SVAL2);
-	DUMPCOREAV(HDMI_CORE_AV_CTS_SVAL3);
-	DUMPCOREAV(HDMI_CORE_AV_CTS_HVAL1);
-	DUMPCOREAV(HDMI_CORE_AV_CTS_HVAL2);
-	DUMPCOREAV(HDMI_CORE_AV_CTS_HVAL3);
-	DUMPCOREAV(HDMI_CORE_AV_AUD_MODE);
-	DUMPCOREAV(HDMI_CORE_AV_SPDIF_CTRL);
-	DUMPCOREAV(HDMI_CORE_AV_HW_SPDIF_FS);
-	DUMPCOREAV(HDMI_CORE_AV_SWAP_I2S);
-	DUMPCOREAV(HDMI_CORE_AV_SPDIF_ERTH);
-	DUMPCOREAV(HDMI_CORE_AV_I2S_IN_MAP);
-	DUMPCOREAV(HDMI_CORE_AV_I2S_IN_CTRL);
-	DUMPCOREAV(HDMI_CORE_AV_I2S_CHST0);
-	DUMPCOREAV(HDMI_CORE_AV_I2S_CHST1);
-	DUMPCOREAV(HDMI_CORE_AV_I2S_CHST2);
-	DUMPCOREAV(HDMI_CORE_AV_I2S_CHST4);
-	DUMPCOREAV(HDMI_CORE_AV_I2S_CHST5);
-	DUMPCOREAV(HDMI_CORE_AV_ASRC);
-	DUMPCOREAV(HDMI_CORE_AV_I2S_IN_LEN);
-	DUMPCOREAV(HDMI_CORE_AV_HDMI_CTRL);
-	DUMPCOREAV(HDMI_CORE_AV_AUDO_TXSTAT);
-	DUMPCOREAV(HDMI_CORE_AV_AUD_PAR_BUSCLK_1);
-	DUMPCOREAV(HDMI_CORE_AV_AUD_PAR_BUSCLK_2);
-	DUMPCOREAV(HDMI_CORE_AV_AUD_PAR_BUSCLK_3);
-	DUMPCOREAV(HDMI_CORE_AV_TEST_TXCTRL);
-	DUMPCOREAV(HDMI_CORE_AV_DPD);
-	DUMPCOREAV(HDMI_CORE_AV_PB_CTRL1);
-	DUMPCOREAV(HDMI_CORE_AV_PB_CTRL2);
-	DUMPCOREAV(HDMI_CORE_AV_AVI_TYPE);
-	DUMPCOREAV(HDMI_CORE_AV_AVI_VERS);
-	DUMPCOREAV(HDMI_CORE_AV_AVI_LEN);
-	DUMPCOREAV(HDMI_CORE_AV_AVI_CHSUM);
-
-	for (i = 0; i < HDMI_CORE_AV_AVI_DBYTE_NELEMS; i++)
-		DUMPCOREAV2(i, HDMI_CORE_AV_AVI_DBYTE);
-
-	DUMPCOREAV(HDMI_CORE_AV_SPD_TYPE);
-	DUMPCOREAV(HDMI_CORE_AV_SPD_VERS);
-	DUMPCOREAV(HDMI_CORE_AV_SPD_LEN);
-	DUMPCOREAV(HDMI_CORE_AV_SPD_CHSUM);
-
-	for (i = 0; i < HDMI_CORE_AV_SPD_DBYTE_NELEMS; i++)
-		DUMPCOREAV2(i, HDMI_CORE_AV_SPD_DBYTE);
-
-	DUMPCOREAV(HDMI_CORE_AV_AUDIO_TYPE);
-	DUMPCOREAV(HDMI_CORE_AV_AUDIO_VERS);
-	DUMPCOREAV(HDMI_CORE_AV_AUDIO_LEN);
-	DUMPCOREAV(HDMI_CORE_AV_AUDIO_CHSUM);
-
-	for (i = 0; i < HDMI_CORE_AV_AUD_DBYTE_NELEMS; i++)
-		DUMPCOREAV2(i, HDMI_CORE_AV_AUD_DBYTE);
-
-	DUMPCOREAV(HDMI_CORE_AV_MPEG_TYPE);
-	DUMPCOREAV(HDMI_CORE_AV_MPEG_VERS);
-	DUMPCOREAV(HDMI_CORE_AV_MPEG_LEN);
-	DUMPCOREAV(HDMI_CORE_AV_MPEG_CHSUM);
-
-	for (i = 0; i < HDMI_CORE_AV_MPEG_DBYTE_NELEMS; i++)
-		DUMPCOREAV2(i, HDMI_CORE_AV_MPEG_DBYTE);
-
-	for (i = 0; i < HDMI_CORE_AV_GEN_DBYTE_NELEMS; i++)
-		DUMPCOREAV2(i, HDMI_CORE_AV_GEN_DBYTE);
-
-	DUMPCOREAV(HDMI_CORE_AV_CP_BYTE1);
-
-	for (i = 0; i < HDMI_CORE_AV_GEN2_DBYTE_NELEMS; i++)
-		DUMPCOREAV2(i, HDMI_CORE_AV_GEN2_DBYTE);
-
-	DUMPCOREAV(HDMI_CORE_AV_CEC_ADDR_ID);
-}
-
-#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-static void hdmi_core_audio_config(struct hdmi_core_data *core,
-					struct hdmi_core_audio_config *cfg)
-{
-	u32 r;
-	void __iomem *av_base = hdmi_av_base(core);
-
-	/*
-	 * Parameters for generation of Audio Clock Recovery packets
-	 */
-	REG_FLD_MOD(av_base, HDMI_CORE_AV_N_SVAL1, cfg->n, 7, 0);
-	REG_FLD_MOD(av_base, HDMI_CORE_AV_N_SVAL2, cfg->n >> 8, 7, 0);
-	REG_FLD_MOD(av_base, HDMI_CORE_AV_N_SVAL3, cfg->n >> 16, 7, 0);
-
-	if (cfg->cts_mode == HDMI_AUDIO_CTS_MODE_SW) {
-		REG_FLD_MOD(av_base, HDMI_CORE_AV_CTS_SVAL1, cfg->cts, 7, 0);
-		REG_FLD_MOD(av_base,
-				HDMI_CORE_AV_CTS_SVAL2, cfg->cts >> 8, 7, 0);
-		REG_FLD_MOD(av_base,
-				HDMI_CORE_AV_CTS_SVAL3, cfg->cts >> 16, 7, 0);
-	} else {
-		REG_FLD_MOD(av_base, HDMI_CORE_AV_AUD_PAR_BUSCLK_1,
-				cfg->aud_par_busclk, 7, 0);
-		REG_FLD_MOD(av_base, HDMI_CORE_AV_AUD_PAR_BUSCLK_2,
-				(cfg->aud_par_busclk >> 8), 7, 0);
-		REG_FLD_MOD(av_base, HDMI_CORE_AV_AUD_PAR_BUSCLK_3,
-				(cfg->aud_par_busclk >> 16), 7, 0);
-	}
-
-	/* Set ACR clock divisor */
-	REG_FLD_MOD(av_base,
-			HDMI_CORE_AV_FREQ_SVAL, cfg->mclk_mode, 2, 0);
-
-	r = hdmi_read_reg(av_base, HDMI_CORE_AV_ACR_CTRL);
-	/*
-	 * Use TMDS clock for ACR packets. For devices that use
-	 * the MCLK, this is the first part of the MCLK initialization.
-	 */
-	r = FLD_MOD(r, 0, 2, 2);
-
-	r = FLD_MOD(r, cfg->en_acr_pkt, 1, 1);
-	r = FLD_MOD(r, cfg->cts_mode, 0, 0);
-	hdmi_write_reg(av_base, HDMI_CORE_AV_ACR_CTRL, r);
-
-	/* For devices using MCLK, this completes its initialization. */
-	if (cfg->use_mclk)
-		REG_FLD_MOD(av_base, HDMI_CORE_AV_ACR_CTRL, 1, 2, 2);
-
-	/* Override of SPDIF sample frequency with value in I2S_CHST4 */
-	REG_FLD_MOD(av_base, HDMI_CORE_AV_SPDIF_CTRL,
-						cfg->fs_override, 1, 1);
-
-	/*
-	 * Set IEC-60958-3 channel status word. It is passed to the IP
-	 * just as it is received. The user of the driver is responsible
-	 * for its contents.
-	 */
-	hdmi_write_reg(av_base, HDMI_CORE_AV_I2S_CHST0,
-		       cfg->iec60958_cfg->status[0]);
-	hdmi_write_reg(av_base, HDMI_CORE_AV_I2S_CHST1,
-		       cfg->iec60958_cfg->status[1]);
-	hdmi_write_reg(av_base, HDMI_CORE_AV_I2S_CHST2,
-		       cfg->iec60958_cfg->status[2]);
-	/* yes, this is correct: status[3] goes to CHST4 register */
-	hdmi_write_reg(av_base, HDMI_CORE_AV_I2S_CHST4,
-		       cfg->iec60958_cfg->status[3]);
-	/* yes, this is correct: status[4] goes to CHST5 register */
-	hdmi_write_reg(av_base, HDMI_CORE_AV_I2S_CHST5,
-		       cfg->iec60958_cfg->status[4]);
-
-	/* set I2S parameters */
-	r = hdmi_read_reg(av_base, HDMI_CORE_AV_I2S_IN_CTRL);
-	r = FLD_MOD(r, cfg->i2s_cfg.sck_edge_mode, 6, 6);
-	r = FLD_MOD(r, cfg->i2s_cfg.vbit, 4, 4);
-	r = FLD_MOD(r, cfg->i2s_cfg.justification, 2, 2);
-	r = FLD_MOD(r, cfg->i2s_cfg.direction, 1, 1);
-	r = FLD_MOD(r, cfg->i2s_cfg.shift, 0, 0);
-	hdmi_write_reg(av_base, HDMI_CORE_AV_I2S_IN_CTRL, r);
-
-	REG_FLD_MOD(av_base, HDMI_CORE_AV_I2S_IN_LEN,
-			cfg->i2s_cfg.in_length_bits, 3, 0);
-
-	/* Audio channels and mode parameters */
-	REG_FLD_MOD(av_base, HDMI_CORE_AV_HDMI_CTRL, cfg->layout, 2, 1);
-	r = hdmi_read_reg(av_base, HDMI_CORE_AV_AUD_MODE);
-	r = FLD_MOD(r, cfg->i2s_cfg.active_sds, 7, 4);
-	r = FLD_MOD(r, cfg->en_dsd_audio, 3, 3);
-	r = FLD_MOD(r, cfg->en_parallel_aud_input, 2, 2);
-	r = FLD_MOD(r, cfg->en_spdif, 1, 1);
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_MODE, r);
-
-	/* Audio channel mappings */
-	/* TODO: Make channel mapping dynamic. For now, map channels
-	 * in the ALSA order: FL/FR/RL/RR/C/LFE/SL/SR. Remapping is needed as
-	 * HDMI speaker order is different. See CEA-861 Section 6.6.2.
-	 */
-	hdmi_write_reg(av_base, HDMI_CORE_AV_I2S_IN_MAP, 0x78);
-	REG_FLD_MOD(av_base, HDMI_CORE_AV_SWAP_I2S, 1, 5, 5);
-}
-
-static void hdmi_core_audio_infoframe_cfg(struct hdmi_core_data *core,
-		struct snd_cea_861_aud_if *info_aud)
-{
-	u8 sum = 0, checksum = 0;
-	void __iomem *av_base = hdmi_av_base(core);
-
-	/*
-	 * Set audio info frame type, version and length as
-	 * described in HDMI 1.4a Section 8.2.2 specification.
-	 * Checksum calculation is defined in Section 5.3.5.
-	 */
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AUDIO_TYPE, 0x84);
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AUDIO_VERS, 0x01);
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AUDIO_LEN, 0x0a);
-	sum += 0x84 + 0x001 + 0x00a;
-
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(0),
-		       info_aud->db1_ct_cc);
-	sum += info_aud->db1_ct_cc;
-
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(1),
-		       info_aud->db2_sf_ss);
-	sum += info_aud->db2_sf_ss;
-
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(2), info_aud->db3);
-	sum += info_aud->db3;
-
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(3), info_aud->db4_ca);
-	sum += info_aud->db4_ca;
-
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(4),
-		       info_aud->db5_dminh_lsv);
-	sum += info_aud->db5_dminh_lsv;
-
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(5), 0x00);
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(6), 0x00);
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(7), 0x00);
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(8), 0x00);
-	hdmi_write_reg(av_base, HDMI_CORE_AV_AUD_DBYTE(9), 0x00);
-
-	checksum = 0x100 - sum;
-	hdmi_write_reg(av_base,
-					HDMI_CORE_AV_AUDIO_CHSUM, checksum);
-
-	/*
-	 * TODO: Add MPEG and SPD enable and repeat cfg when EDID parsing
-	 * is available.
-	 */
-}
-
-int hdmi4_audio_config(struct hdmi_core_data *core, struct hdmi_wp_data *wp,
-		struct omap_dss_audio *audio)
-{
-	struct hdmi_audio_format audio_format;
-	struct hdmi_audio_dma audio_dma;
-	struct hdmi_core_audio_config acore;
-	int err, n, cts, channel_count;
-	unsigned int fs_nr;
-	bool word_length_16b = false;
-
-	if (!audio || !audio->iec || !audio->cea || !core)
-		return -EINVAL;
-
-	acore.iec60958_cfg = audio->iec;
-	/*
-	 * In the IEC-60958 status word, check if the audio sample word length
-	 * is 16-bit as several optimizations can be performed in such case.
-	 */
-	if (!(audio->iec->status[4] & IEC958_AES4_CON_MAX_WORDLEN_24))
-		if (audio->iec->status[4] & IEC958_AES4_CON_WORDLEN_20_16)
-			word_length_16b = true;
-
-	/* I2S configuration. See Phillips' specification */
-	if (word_length_16b)
-		acore.i2s_cfg.justification = HDMI_AUDIO_JUSTIFY_LEFT;
-	else
-		acore.i2s_cfg.justification = HDMI_AUDIO_JUSTIFY_RIGHT;
-	/*
-	 * The I2S input word length is twice the lenght given in the IEC-60958
-	 * status word. If the word size is greater than
-	 * 20 bits, increment by one.
-	 */
-	acore.i2s_cfg.in_length_bits = audio->iec->status[4]
-		& IEC958_AES4_CON_WORDLEN;
-	if (audio->iec->status[4] & IEC958_AES4_CON_MAX_WORDLEN_24)
-		acore.i2s_cfg.in_length_bits++;
-	acore.i2s_cfg.sck_edge_mode = HDMI_AUDIO_I2S_SCK_EDGE_RISING;
-	acore.i2s_cfg.vbit = HDMI_AUDIO_I2S_VBIT_FOR_PCM;
-	acore.i2s_cfg.direction = HDMI_AUDIO_I2S_MSB_SHIFTED_FIRST;
-	acore.i2s_cfg.shift = HDMI_AUDIO_I2S_FIRST_BIT_SHIFT;
-
-	/* convert sample frequency to a number */
-	switch (audio->iec->status[3] & IEC958_AES3_CON_FS) {
-	case IEC958_AES3_CON_FS_32000:
-		fs_nr = 32000;
-		break;
-	case IEC958_AES3_CON_FS_44100:
-		fs_nr = 44100;
-		break;
-	case IEC958_AES3_CON_FS_48000:
-		fs_nr = 48000;
-		break;
-	case IEC958_AES3_CON_FS_88200:
-		fs_nr = 88200;
-		break;
-	case IEC958_AES3_CON_FS_96000:
-		fs_nr = 96000;
-		break;
-	case IEC958_AES3_CON_FS_176400:
-		fs_nr = 176400;
-		break;
-	case IEC958_AES3_CON_FS_192000:
-		fs_nr = 192000;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	err = hdmi_compute_acr(fs_nr, &n, &cts);
-
-	/* Audio clock regeneration settings */
-	acore.n = n;
-	acore.cts = cts;
-	if (dss_has_feature(FEAT_HDMI_CTS_SWMODE)) {
-		acore.aud_par_busclk = 0;
-		acore.cts_mode = HDMI_AUDIO_CTS_MODE_SW;
-		acore.use_mclk = dss_has_feature(FEAT_HDMI_AUDIO_USE_MCLK);
-	} else {
-		acore.aud_par_busclk = (((128 * 31) - 1) << 8);
-		acore.cts_mode = HDMI_AUDIO_CTS_MODE_HW;
-		acore.use_mclk = true;
-	}
-
-	if (acore.use_mclk)
-		acore.mclk_mode = HDMI_AUDIO_MCLK_128FS;
-
-	/* Audio channels settings */
-	channel_count = (audio->cea->db1_ct_cc &
-			 CEA861_AUDIO_INFOFRAME_DB1CC) + 1;
-
-	switch (channel_count) {
-	case 2:
-		audio_format.active_chnnls_msk = 0x03;
-		break;
-	case 3:
-		audio_format.active_chnnls_msk = 0x07;
-		break;
-	case 4:
-		audio_format.active_chnnls_msk = 0x0f;
-		break;
-	case 5:
-		audio_format.active_chnnls_msk = 0x1f;
-		break;
-	case 6:
-		audio_format.active_chnnls_msk = 0x3f;
-		break;
-	case 7:
-		audio_format.active_chnnls_msk = 0x7f;
-		break;
-	case 8:
-		audio_format.active_chnnls_msk = 0xff;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	/*
-	 * the HDMI IP needs to enable four stereo channels when transmitting
-	 * more than 2 audio channels
-	 */
-	if (channel_count == 2) {
-		audio_format.stereo_channels = HDMI_AUDIO_STEREO_ONECHANNEL;
-		acore.i2s_cfg.active_sds = HDMI_AUDIO_I2S_SD0_EN;
-		acore.layout = HDMI_AUDIO_LAYOUT_2CH;
-	} else {
-		audio_format.stereo_channels = HDMI_AUDIO_STEREO_FOURCHANNELS;
-		acore.i2s_cfg.active_sds = HDMI_AUDIO_I2S_SD0_EN |
-				HDMI_AUDIO_I2S_SD1_EN | HDMI_AUDIO_I2S_SD2_EN |
-				HDMI_AUDIO_I2S_SD3_EN;
-		acore.layout = HDMI_AUDIO_LAYOUT_8CH;
-	}
-
-	acore.en_spdif = false;
-	/* use sample frequency from channel status word */
-	acore.fs_override = true;
-	/* enable ACR packets */
-	acore.en_acr_pkt = true;
-	/* disable direct streaming digital audio */
-	acore.en_dsd_audio = false;
-	/* use parallel audio interface */
-	acore.en_parallel_aud_input = true;
-
-	/* DMA settings */
-	if (word_length_16b)
-		audio_dma.transfer_size = 0x10;
-	else
-		audio_dma.transfer_size = 0x20;
-	audio_dma.block_size = 0xC0;
-	audio_dma.mode = HDMI_AUDIO_TRANSF_DMA;
-	audio_dma.fifo_threshold = 0x20; /* in number of samples */
-
-	/* audio FIFO format settings */
-	if (word_length_16b) {
-		audio_format.samples_per_word = HDMI_AUDIO_ONEWORD_TWOSAMPLES;
-		audio_format.sample_size = HDMI_AUDIO_SAMPLE_16BITS;
-		audio_format.justification = HDMI_AUDIO_JUSTIFY_LEFT;
-	} else {
-		audio_format.samples_per_word = HDMI_AUDIO_ONEWORD_ONESAMPLE;
-		audio_format.sample_size = HDMI_AUDIO_SAMPLE_24BITS;
-		audio_format.justification = HDMI_AUDIO_JUSTIFY_RIGHT;
-	}
-	audio_format.type = HDMI_AUDIO_TYPE_LPCM;
-	audio_format.sample_order = HDMI_AUDIO_SAMPLE_LEFT_FIRST;
-	/* disable start/stop signals of IEC 60958 blocks */
-	audio_format.en_sig_blk_strt_end = HDMI_AUDIO_BLOCK_SIG_STARTEND_ON;
-
-	/* configure DMA and audio FIFO format*/
-	hdmi_wp_audio_config_dma(wp, &audio_dma);
-	hdmi_wp_audio_config_format(wp, &audio_format);
-
-	/* configure the core*/
-	hdmi_core_audio_config(core, &acore);
-
-	/* configure CEA 861 audio infoframe*/
-	hdmi_core_audio_infoframe_cfg(core, audio->cea);
-
-	return 0;
-}
-
-int hdmi4_audio_start(struct hdmi_core_data *core, struct hdmi_wp_data *wp)
-{
-	REG_FLD_MOD(hdmi_av_base(core),
-		    HDMI_CORE_AV_AUD_MODE, true, 0, 0);
-
-	hdmi_wp_audio_core_req_enable(wp, true);
-
-	return 0;
-}
-
-void hdmi4_audio_stop(struct hdmi_core_data *core, struct hdmi_wp_data *wp)
-{
-	REG_FLD_MOD(hdmi_av_base(core),
-		    HDMI_CORE_AV_AUD_MODE, false, 0, 0);
-
-	hdmi_wp_audio_core_req_enable(wp, false);
-}
-
-int hdmi4_audio_get_dma_port(u32 *offset, u32 *size)
-{
-	if (!offset || !size)
-		return -EINVAL;
-	*offset = HDMI_WP_AUDIO_DATA;
-	*size = 4;
-	return 0;
-}
-
-#endif
-
-#define CORE_OFFSET		0x400
-#define CORE_SIZE		0xc00
-
-int hdmi4_core_init(struct platform_device *pdev, struct hdmi_core_data *core)
-{
-	struct resource *res;
-	struct resource temp_res;
-
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hdmi_core");
-	if (!res) {
-		DSSDBG("can't get CORE mem resource by name\n");
-		/*
-		 * if hwmod/DT doesn't have the memory resource information
-		 * split into HDMI sub blocks by name, we try again by getting
-		 * the platform's first resource. this code will be removed when
-		 * the driver can get the mem resources by name
-		 */
-		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-		if (!res) {
-			DSSERR("can't get CORE mem resource\n");
-			return -EINVAL;
-		}
-
-		temp_res.start = res->start + CORE_OFFSET;
-		temp_res.end = temp_res.start + CORE_SIZE - 1;
-		res = &temp_res;
-	}
-
-	core->base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
-	if (!core->base) {
-		DSSERR("can't ioremap CORE\n");
-		return -ENOMEM;
-	}
-
-	return 0;
-}
diff --git a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h b/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
deleted file mode 100644
index 78319ff0b227..000000000000
--- a/drivers/video/omap2/dss/ti_hdmi_4xxx_ip.h
+++ /dev/null
@@ -1,278 +0,0 @@
-/*
- * ti_hdmi_4xxx_ip.h
- *
- * HDMI header definition for DM81xx, DM38xx, TI OMAP4 etc processors.
- *
- * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com/
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef _HDMI_TI_4xxx_H_
-#define _HDMI_TI_4xxx_H_
-
-#include "ti_hdmi.h"
-
-/* OMAP4 HDMI IP Core System */
-
-#define HDMI_CORE_SYS_VND_IDL			0x0
-#define HDMI_CORE_SYS_DEV_IDL			0x8
-#define HDMI_CORE_SYS_DEV_IDH			0xC
-#define HDMI_CORE_SYS_DEV_REV			0x10
-#define HDMI_CORE_SYS_SRST			0x14
-#define HDMI_CORE_SYS_SYS_CTRL1			0x20
-#define HDMI_CORE_SYS_SYS_STAT			0x24
-#define HDMI_CORE_SYS_SYS_CTRL3			0x28
-#define HDMI_CORE_SYS_DCTL			0x34
-#define HDMI_CORE_SYS_DE_DLY			0xC8
-#define HDMI_CORE_SYS_DE_CTRL			0xCC
-#define HDMI_CORE_SYS_DE_TOP			0xD0
-#define HDMI_CORE_SYS_DE_CNTL			0xD8
-#define HDMI_CORE_SYS_DE_CNTH			0xDC
-#define HDMI_CORE_SYS_DE_LINL			0xE0
-#define HDMI_CORE_SYS_DE_LINH_1			0xE4
-#define HDMI_CORE_SYS_HRES_L			0xE8
-#define HDMI_CORE_SYS_HRES_H			0xEC
-#define HDMI_CORE_SYS_VRES_L			0xF0
-#define HDMI_CORE_SYS_VRES_H			0xF4
-#define HDMI_CORE_SYS_IADJUST			0xF8
-#define HDMI_CORE_SYS_POLDETECT			0xFC
-#define HDMI_CORE_SYS_HWIDTH1			0x110
-#define HDMI_CORE_SYS_HWIDTH2			0x114
-#define HDMI_CORE_SYS_VWIDTH			0x11C
-#define HDMI_CORE_SYS_VID_CTRL			0x120
-#define HDMI_CORE_SYS_VID_ACEN			0x124
-#define HDMI_CORE_SYS_VID_MODE			0x128
-#define HDMI_CORE_SYS_VID_BLANK1		0x12C
-#define HDMI_CORE_SYS_VID_BLANK2		0x130
-#define HDMI_CORE_SYS_VID_BLANK3		0x134
-#define HDMI_CORE_SYS_DC_HEADER			0x138
-#define HDMI_CORE_SYS_VID_DITHER		0x13C
-#define HDMI_CORE_SYS_RGB2XVYCC_CT		0x140
-#define HDMI_CORE_SYS_R2Y_COEFF_LOW		0x144
-#define HDMI_CORE_SYS_R2Y_COEFF_UP		0x148
-#define HDMI_CORE_SYS_G2Y_COEFF_LOW		0x14C
-#define HDMI_CORE_SYS_G2Y_COEFF_UP		0x150
-#define HDMI_CORE_SYS_B2Y_COEFF_LOW		0x154
-#define HDMI_CORE_SYS_B2Y_COEFF_UP		0x158
-#define HDMI_CORE_SYS_R2CB_COEFF_LOW		0x15C
-#define HDMI_CORE_SYS_R2CB_COEFF_UP		0x160
-#define HDMI_CORE_SYS_G2CB_COEFF_LOW		0x164
-#define HDMI_CORE_SYS_G2CB_COEFF_UP		0x168
-#define HDMI_CORE_SYS_B2CB_COEFF_LOW		0x16C
-#define HDMI_CORE_SYS_B2CB_COEFF_UP		0x170
-#define HDMI_CORE_SYS_R2CR_COEFF_LOW		0x174
-#define HDMI_CORE_SYS_R2CR_COEFF_UP		0x178
-#define HDMI_CORE_SYS_G2CR_COEFF_LOW		0x17C
-#define HDMI_CORE_SYS_G2CR_COEFF_UP		0x180
-#define HDMI_CORE_SYS_B2CR_COEFF_LOW		0x184
-#define HDMI_CORE_SYS_B2CR_COEFF_UP		0x188
-#define HDMI_CORE_SYS_RGB_OFFSET_LOW		0x18C
-#define HDMI_CORE_SYS_RGB_OFFSET_UP		0x190
-#define HDMI_CORE_SYS_Y_OFFSET_LOW		0x194
-#define HDMI_CORE_SYS_Y_OFFSET_UP		0x198
-#define HDMI_CORE_SYS_CBCR_OFFSET_LOW		0x19C
-#define HDMI_CORE_SYS_CBCR_OFFSET_UP		0x1A0
-#define HDMI_CORE_SYS_INTR_STATE		0x1C0
-#define HDMI_CORE_SYS_INTR1			0x1C4
-#define HDMI_CORE_SYS_INTR2			0x1C8
-#define HDMI_CORE_SYS_INTR3			0x1CC
-#define HDMI_CORE_SYS_INTR4			0x1D0
-#define HDMI_CORE_SYS_INTR_UNMASK1		0x1D4
-#define HDMI_CORE_SYS_INTR_UNMASK2		0x1D8
-#define HDMI_CORE_SYS_INTR_UNMASK3		0x1DC
-#define HDMI_CORE_SYS_INTR_UNMASK4		0x1E0
-#define HDMI_CORE_SYS_INTR_CTRL			0x1E4
-#define HDMI_CORE_SYS_TMDS_CTRL			0x208
-
-/* value definitions for HDMI_CORE_SYS_SYS_CTRL1 fields */
-#define HDMI_CORE_SYS_SYS_CTRL1_VEN_FOLLOWVSYNC	0x1
-#define HDMI_CORE_SYS_SYS_CTRL1_HEN_FOLLOWHSYNC	0x1
-#define HDMI_CORE_SYS_SYS_CTRL1_BSEL_24BITBUS	0x1
-#define HDMI_CORE_SYS_SYS_CTRL1_EDGE_RISINGEDGE	0x1
-
-/* HDMI DDC E-DID */
-#define HDMI_CORE_DDC_ADDR			0x3B4
-#define HDMI_CORE_DDC_SEGM			0x3B8
-#define HDMI_CORE_DDC_OFFSET			0x3BC
-#define HDMI_CORE_DDC_COUNT1			0x3C0
-#define HDMI_CORE_DDC_COUNT2			0x3C4
-#define HDMI_CORE_DDC_STATUS			0x3C8
-#define HDMI_CORE_DDC_CMD			0x3CC
-#define HDMI_CORE_DDC_DATA			0x3D0
-
-/* HDMI IP Core Audio Video */
-
-#define HDMI_CORE_AV_ACR_CTRL			0x4
-#define HDMI_CORE_AV_FREQ_SVAL			0x8
-#define HDMI_CORE_AV_N_SVAL1			0xC
-#define HDMI_CORE_AV_N_SVAL2			0x10
-#define HDMI_CORE_AV_N_SVAL3			0x14
-#define HDMI_CORE_AV_CTS_SVAL1			0x18
-#define HDMI_CORE_AV_CTS_SVAL2			0x1C
-#define HDMI_CORE_AV_CTS_SVAL3			0x20
-#define HDMI_CORE_AV_CTS_HVAL1			0x24
-#define HDMI_CORE_AV_CTS_HVAL2			0x28
-#define HDMI_CORE_AV_CTS_HVAL3			0x2C
-#define HDMI_CORE_AV_AUD_MODE			0x50
-#define HDMI_CORE_AV_SPDIF_CTRL			0x54
-#define HDMI_CORE_AV_HW_SPDIF_FS		0x60
-#define HDMI_CORE_AV_SWAP_I2S			0x64
-#define HDMI_CORE_AV_SPDIF_ERTH			0x6C
-#define HDMI_CORE_AV_I2S_IN_MAP			0x70
-#define HDMI_CORE_AV_I2S_IN_CTRL		0x74
-#define HDMI_CORE_AV_I2S_CHST0			0x78
-#define HDMI_CORE_AV_I2S_CHST1			0x7C
-#define HDMI_CORE_AV_I2S_CHST2			0x80
-#define HDMI_CORE_AV_I2S_CHST4			0x84
-#define HDMI_CORE_AV_I2S_CHST5			0x88
-#define HDMI_CORE_AV_ASRC			0x8C
-#define HDMI_CORE_AV_I2S_IN_LEN			0x90
-#define HDMI_CORE_AV_HDMI_CTRL			0xBC
-#define HDMI_CORE_AV_AUDO_TXSTAT		0xC0
-#define HDMI_CORE_AV_AUD_PAR_BUSCLK_1		0xCC
-#define HDMI_CORE_AV_AUD_PAR_BUSCLK_2		0xD0
-#define HDMI_CORE_AV_AUD_PAR_BUSCLK_3		0xD4
-#define HDMI_CORE_AV_TEST_TXCTRL		0xF0
-#define HDMI_CORE_AV_DPD			0xF4
-#define HDMI_CORE_AV_PB_CTRL1			0xF8
-#define HDMI_CORE_AV_PB_CTRL2			0xFC
-#define HDMI_CORE_AV_AVI_TYPE			0x100
-#define HDMI_CORE_AV_AVI_VERS			0x104
-#define HDMI_CORE_AV_AVI_LEN			0x108
-#define HDMI_CORE_AV_AVI_CHSUM			0x10C
-#define HDMI_CORE_AV_AVI_DBYTE(n)		(n * 4 + 0x110)
-#define HDMI_CORE_AV_SPD_TYPE			0x180
-#define HDMI_CORE_AV_SPD_VERS			0x184
-#define HDMI_CORE_AV_SPD_LEN			0x188
-#define HDMI_CORE_AV_SPD_CHSUM			0x18C
-#define HDMI_CORE_AV_SPD_DBYTE(n)		(n * 4 + 0x190)
-#define HDMI_CORE_AV_AUDIO_TYPE			0x200
-#define HDMI_CORE_AV_AUDIO_VERS			0x204
-#define HDMI_CORE_AV_AUDIO_LEN			0x208
-#define HDMI_CORE_AV_AUDIO_CHSUM		0x20C
-#define HDMI_CORE_AV_AUD_DBYTE(n)		(n * 4 + 0x210)
-#define HDMI_CORE_AV_MPEG_TYPE			0x280
-#define HDMI_CORE_AV_MPEG_VERS			0x284
-#define HDMI_CORE_AV_MPEG_LEN			0x288
-#define HDMI_CORE_AV_MPEG_CHSUM			0x28C
-#define HDMI_CORE_AV_MPEG_DBYTE(n)		(n * 4 + 0x290)
-#define HDMI_CORE_AV_GEN_DBYTE(n)		(n * 4 + 0x300)
-#define HDMI_CORE_AV_CP_BYTE1			0x37C
-#define HDMI_CORE_AV_GEN2_DBYTE(n)		(n * 4 + 0x380)
-#define HDMI_CORE_AV_CEC_ADDR_ID		0x3FC
-
-#define HDMI_CORE_AV_SPD_DBYTE_ELSIZE		0x4
-#define HDMI_CORE_AV_GEN2_DBYTE_ELSIZE		0x4
-#define HDMI_CORE_AV_MPEG_DBYTE_ELSIZE		0x4
-#define HDMI_CORE_AV_GEN_DBYTE_ELSIZE		0x4
-
-#define HDMI_CORE_AV_AVI_DBYTE_NELEMS		15
-#define HDMI_CORE_AV_SPD_DBYTE_NELEMS		27
-#define HDMI_CORE_AV_AUD_DBYTE_NELEMS		10
-#define HDMI_CORE_AV_MPEG_DBYTE_NELEMS		27
-#define HDMI_CORE_AV_GEN_DBYTE_NELEMS		31
-#define HDMI_CORE_AV_GEN2_DBYTE_NELEMS		31
-
-enum hdmi_core_inputbus_width {
-	HDMI_INPUT_8BIT = 0,
-	HDMI_INPUT_10BIT = 1,
-	HDMI_INPUT_12BIT = 2
-};
-
-enum hdmi_core_dither_trunc {
-	HDMI_OUTPUTTRUNCATION_8BIT = 0,
-	HDMI_OUTPUTTRUNCATION_10BIT = 1,
-	HDMI_OUTPUTTRUNCATION_12BIT = 2,
-	HDMI_OUTPUTDITHER_8BIT = 3,
-	HDMI_OUTPUTDITHER_10BIT = 4,
-	HDMI_OUTPUTDITHER_12BIT = 5
-};
-
-enum hdmi_core_deepcolor_ed {
-	HDMI_DEEPCOLORPACKECTDISABLE = 0,
-	HDMI_DEEPCOLORPACKECTENABLE = 1
-};
-
-enum hdmi_core_packet_mode {
-	HDMI_PACKETMODERESERVEDVALUE = 0,
-	HDMI_PACKETMODE24BITPERPIXEL = 4,
-	HDMI_PACKETMODE30BITPERPIXEL = 5,
-	HDMI_PACKETMODE36BITPERPIXEL = 6,
-	HDMI_PACKETMODE48BITPERPIXEL = 7
-};
-
-enum hdmi_core_tclkselclkmult {
-	HDMI_FPLL05IDCK = 0,
-	HDMI_FPLL10IDCK = 1,
-	HDMI_FPLL20IDCK = 2,
-	HDMI_FPLL40IDCK = 3
-};
-
-enum hdmi_core_packet_ctrl {
-	HDMI_PACKETENABLE = 1,
-	HDMI_PACKETDISABLE = 0,
-	HDMI_PACKETREPEATON = 1,
-	HDMI_PACKETREPEATOFF = 0
-};
-
-enum hdmi_audio_i2s_config {
-	HDMI_AUDIO_I2S_MSB_SHIFTED_FIRST = 0,
-	HDMI_AUDIO_I2S_LSB_SHIFTED_FIRST = 1,
-	HDMI_AUDIO_I2S_SCK_EDGE_FALLING = 0,
-	HDMI_AUDIO_I2S_SCK_EDGE_RISING = 1,
-	HDMI_AUDIO_I2S_VBIT_FOR_PCM = 0,
-	HDMI_AUDIO_I2S_VBIT_FOR_COMPRESSED = 1,
-	HDMI_AUDIO_I2S_FIRST_BIT_SHIFT = 0,
-	HDMI_AUDIO_I2S_FIRST_BIT_NO_SHIFT = 1,
-	HDMI_AUDIO_I2S_SD0_EN = 1,
-	HDMI_AUDIO_I2S_SD1_EN = 1 << 1,
-	HDMI_AUDIO_I2S_SD2_EN = 1 << 2,
-	HDMI_AUDIO_I2S_SD3_EN = 1 << 3,
-};
-
-struct hdmi_core_video_config {
-	enum hdmi_core_inputbus_width	ip_bus_width;
-	enum hdmi_core_dither_trunc	op_dither_truc;
-	enum hdmi_core_deepcolor_ed	deep_color_pkt;
-	enum hdmi_core_packet_mode	pkt_mode;
-	enum hdmi_core_hdmi_dvi		hdmi_dvi;
-	enum hdmi_core_tclkselclkmult	tclk_sel_clkmult;
-};
-
-struct hdmi_core_packet_enable_repeat {
-	u32	audio_pkt;
-	u32	audio_pkt_repeat;
-	u32	avi_infoframe;
-	u32	avi_infoframe_repeat;
-	u32	gen_cntrl_pkt;
-	u32	gen_cntrl_pkt_repeat;
-	u32	generic_pkt;
-	u32	generic_pkt_repeat;
-};
-
-int hdmi4_read_edid(struct hdmi_core_data *core, u8 *edid, int len);
-void hdmi4_configure(struct hdmi_core_data *core, struct hdmi_wp_data *wp,
-		struct hdmi_config *cfg);
-void hdmi4_core_dump(struct hdmi_core_data *core, struct seq_file *s);
-int hdmi4_core_init(struct platform_device *pdev, struct hdmi_core_data *core);
-
-#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-int hdmi4_audio_start(struct hdmi_core_data *core, struct hdmi_wp_data *wp);
-void hdmi4_audio_stop(struct hdmi_core_data *core, struct hdmi_wp_data *wp);
-int hdmi4_audio_config(struct hdmi_core_data *core, struct hdmi_wp_data *wp,
-		struct omap_dss_audio *audio);
-int hdmi4_audio_get_dma_port(u32 *offset, u32 *size);
-#endif
-
-#endif
-- 
cgit 


From c8a0d959b776f6799b995941ee0c2f8c67110fe8 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Fri, 6 Sep 2013 18:35:44 +0530
Subject: omapdss: OMAP4: HDMI: remove unnecessary edid macros

The hdmi4 driver has edid macros that aren't used at all. Remove them.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/hdmi4.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/video/omap2/dss/hdmi4.c b/drivers/video/omap2/dss/hdmi4.c
index 324ecd00e4da..ab43069c10ed 100644
--- a/drivers/video/omap2/dss/hdmi4.c
+++ b/drivers/video/omap2/dss/hdmi4.c
@@ -38,14 +38,6 @@
 #include "dss.h"
 #include "dss_features.h"
 
-/* HDMI EDID Length move this */
-#define HDMI_EDID_MAX_LENGTH			256
-#define EDID_TIMING_DESCRIPTOR_SIZE		0x12
-#define EDID_DESCRIPTOR_BLOCK0_ADDRESS		0x36
-#define EDID_DESCRIPTOR_BLOCK1_ADDRESS		0x80
-#define EDID_SIZE_BLOCK0_TIMING_DESCRIPTOR	4
-#define EDID_SIZE_BLOCK1_TIMING_DESCRIPTOR	4
-
 static struct {
 	struct mutex lock;
 	struct platform_device *pdev;
-- 
cgit 


From 08d83e4e172176f8a66697ffb26eaa5ac5c2ef03 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Tue, 17 Sep 2013 11:43:15 +0530
Subject: omapdss: HDMI: move common functions to a separate file

The OMAP4 HDMI encoder driver(hdmi4.c) contains timings tables, and helper
functions which can be used as is by the OMAP5/DRA7x encoder driver. Move these
to hdmi_common.c so that it's not replicated in the future.

Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/Makefile      |   4 +-
 drivers/video/omap2/dss/hdmi.h        |  11 +-
 drivers/video/omap2/dss/hdmi4.c       | 438 +---------------------------------
 drivers/video/omap2/dss/hdmi4_core.c  |   4 +-
 drivers/video/omap2/dss/hdmi4_core.h  |   2 +-
 drivers/video/omap2/dss/hdmi_common.c | 423 ++++++++++++++++++++++++++++++++
 6 files changed, 447 insertions(+), 435 deletions(-)
 create mode 100644 drivers/video/omap2/dss/hdmi_common.c

diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile
index f87ca3216a1f..d3aa91bdd6a8 100644
--- a/drivers/video/omap2/dss/Makefile
+++ b/drivers/video/omap2/dss/Makefile
@@ -10,6 +10,6 @@ omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o
 omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o
 omapdss-$(CONFIG_OMAP2_DSS_SDI) += sdi.o
 omapdss-$(CONFIG_OMAP2_DSS_DSI) += dsi.o
-omapdss-$(CONFIG_OMAP4_DSS_HDMI) += hdmi4.o hdmi_wp.o hdmi_pll.o hdmi_phy.o \
-	hdmi4_core.o
+omapdss-$(CONFIG_OMAP4_DSS_HDMI) += hdmi4.o hdmi_common.o hdmi_wp.o hdmi_pll.o \
+	hdmi_phy.o hdmi4_core.o
 ccflags-$(CONFIG_OMAP2_DSS_DEBUG) += -DDEBUG
diff --git a/drivers/video/omap2/dss/hdmi.h b/drivers/video/omap2/dss/hdmi.h
index b92d981063dc..b0493768a5d7 100644
--- a/drivers/video/omap2/dss/hdmi.h
+++ b/drivers/video/omap2/dss/hdmi.h
@@ -423,13 +423,22 @@ void hdmi_phy_disable(struct hdmi_phy_data *phy, struct hdmi_wp_data *wp);
 void hdmi_phy_dump(struct hdmi_phy_data *phy, struct seq_file *s);
 int hdmi_phy_init(struct platform_device *pdev, struct hdmi_phy_data *phy);
 
+/* HDMI common funcs */
+const struct hdmi_config *hdmi_default_timing(void);
+const struct hdmi_config *hdmi_get_timings(int mode, int code);
+struct hdmi_cm hdmi_get_code(struct omap_video_timings *timing);
+
 #if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-int hdmi_compute_acr(u32 sample_freq, u32 *n, u32 *cts);
+int hdmi_compute_acr(u32 pclk, u32 sample_freq, u32 *n, u32 *cts);
 int hdmi_wp_audio_enable(struct hdmi_wp_data *wp, bool enable);
 int hdmi_wp_audio_core_req_enable(struct hdmi_wp_data *wp, bool enable);
 void hdmi_wp_audio_config_format(struct hdmi_wp_data *wp,
 		struct hdmi_audio_format *aud_fmt);
 void hdmi_wp_audio_config_dma(struct hdmi_wp_data *wp,
 		struct hdmi_audio_dma *aud_dma);
+static inline bool hdmi_mode_has_audio(int mode)
+{
+	return mode == HDMI_HDMI ? true : false;
+}
 #endif
 #endif
diff --git a/drivers/video/omap2/dss/hdmi4.c b/drivers/video/omap2/dss/hdmi4.c
index ab43069c10ed..e14009614338 100644
--- a/drivers/video/omap2/dss/hdmi4.c
+++ b/drivers/video/omap2/dss/hdmi4.c
@@ -57,237 +57,6 @@ static struct {
 	struct omap_dss_device output;
 } hdmi;
 
-/*
- * Logic for the below structure :
- * user enters the CEA or VESA timings by specifying the HDMI/DVI code.
- * There is a correspondence between CEA/VESA timing and code, please
- * refer to section 6.3 in HDMI 1.3 specification for timing code.
- *
- * In the below structure, cea_vesa_timings corresponds to all OMAP4
- * supported CEA and VESA timing values.code_cea corresponds to the CEA
- * code, It is used to get the timing from cea_vesa_timing array.Similarly
- * with code_vesa. Code_index is used for back mapping, that is once EDID
- * is read from the TV, EDID is parsed to find the timing values and then
- * map it to corresponding CEA or VESA index.
- */
-
-static const struct hdmi_config cea_timings[] = {
-	{
-		{ 640, 480, 25200, 96, 16, 48, 2, 10, 33,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 1, HDMI_HDMI },
-	},
-	{
-		{ 720, 480, 27027, 62, 16, 60, 6, 9, 30,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 2, HDMI_HDMI },
-	},
-	{
-		{ 1280, 720, 74250, 40, 110, 220, 5, 5, 20,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 4, HDMI_HDMI },
-	},
-	{
-		{ 1920, 540, 74250, 44, 88, 148, 5, 2, 15,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			true, },
-		{ 5, HDMI_HDMI },
-	},
-	{
-		{ 1440, 240, 27027, 124, 38, 114, 3, 4, 15,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
-			true, },
-		{ 6, HDMI_HDMI },
-	},
-	{
-		{ 1920, 1080, 148500, 44, 88, 148, 5, 4, 36,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 16, HDMI_HDMI },
-	},
-	{
-		{ 720, 576, 27000, 64, 12, 68, 5, 5, 39,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 17, HDMI_HDMI },
-	},
-	{
-		{ 1280, 720, 74250, 40, 440, 220, 5, 5, 20,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 19, HDMI_HDMI },
-	},
-	{
-		{ 1920, 540, 74250, 44, 528, 148, 5, 2, 15,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			true, },
-		{ 20, HDMI_HDMI },
-	},
-	{
-		{ 1440, 288, 27000, 126, 24, 138, 3, 2, 19,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
-			true, },
-		{ 21, HDMI_HDMI },
-	},
-	{
-		{ 1440, 576, 54000, 128, 24, 136, 5, 5, 39,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 29, HDMI_HDMI },
-	},
-	{
-		{ 1920, 1080, 148500, 44, 528, 148, 5, 4, 36,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 31, HDMI_HDMI },
-	},
-	{
-		{ 1920, 1080, 74250, 44, 638, 148, 5, 4, 36,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 32, HDMI_HDMI },
-	},
-	{
-		{ 2880, 480, 108108, 248, 64, 240, 6, 9, 30,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 35, HDMI_HDMI },
-	},
-	{
-		{ 2880, 576, 108000, 256, 48, 272, 5, 5, 39,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 37, HDMI_HDMI },
-	},
-};
-
-static const struct hdmi_config vesa_timings[] = {
-/* VESA From Here */
-	{
-		{ 640, 480, 25175, 96, 16, 48, 2, 11, 31,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 4, HDMI_DVI },
-	},
-	{
-		{ 800, 600, 40000, 128, 40, 88, 4, 1, 23,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 9, HDMI_DVI },
-	},
-	{
-		{ 848, 480, 33750, 112, 16, 112, 8, 6, 23,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0xE, HDMI_DVI },
-	},
-	{
-		{ 1280, 768, 79500, 128, 64, 192, 7, 3, 20,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 0x17, HDMI_DVI },
-	},
-	{
-		{ 1280, 800, 83500, 128, 72, 200, 6, 3, 22,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 0x1C, HDMI_DVI },
-	},
-	{
-		{ 1360, 768, 85500, 112, 64, 256, 6, 3, 18,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x27, HDMI_DVI },
-	},
-	{
-		{ 1280, 960, 108000, 112, 96, 312, 3, 1, 36,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x20, HDMI_DVI },
-	},
-	{
-		{ 1280, 1024, 108000, 112, 48, 248, 3, 1, 38,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x23, HDMI_DVI },
-	},
-	{
-		{ 1024, 768, 65000, 136, 24, 160, 6, 3, 29,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 0x10, HDMI_DVI },
-	},
-	{
-		{ 1400, 1050, 121750, 144, 88, 232, 4, 3, 32,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 0x2A, HDMI_DVI },
-	},
-	{
-		{ 1440, 900, 106500, 152, 80, 232, 6, 3, 25,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 0x2F, HDMI_DVI },
-	},
-	{
-		{ 1680, 1050, 146250, 176 , 104, 280, 6, 3, 30,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
-			false, },
-		{ 0x3A, HDMI_DVI },
-	},
-	{
-		{ 1366, 768, 85500, 143, 70, 213, 3, 3, 24,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x51, HDMI_DVI },
-	},
-	{
-		{ 1920, 1080, 148500, 44, 148, 80, 5, 4, 36,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x52, HDMI_DVI },
-	},
-	{
-		{ 1280, 768, 68250, 32, 48, 80, 7, 3, 12,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x16, HDMI_DVI },
-	},
-	{
-		{ 1400, 1050, 101000, 32, 48, 80, 4, 3, 23,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x29, HDMI_DVI },
-	},
-	{
-		{ 1680, 1050, 119000, 32, 48, 80, 6, 3, 21,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x39, HDMI_DVI },
-	},
-	{
-		{ 1280, 800, 79500, 32, 48, 80, 6, 3, 14,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x1B, HDMI_DVI },
-	},
-	{
-		{ 1280, 720, 74250, 40, 110, 220, 5, 5, 20,
-			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x55, HDMI_DVI },
-	},
-	{
-		{ 1920, 1200, 154000, 32, 48, 80, 6, 3, 26,
-			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
-			false, },
-		{ 0x44, HDMI_DVI },
-	},
-};
-
 static int hdmi_runtime_get(void)
 {
 	int r;
@@ -335,86 +104,6 @@ static int hdmi_init_regulator(void)
 	return 0;
 }
 
-static const struct hdmi_config *hdmi_find_timing(
-					const struct hdmi_config *timings_arr,
-					int len)
-{
-	int i;
-
-	for (i = 0; i < len; i++) {
-		if (timings_arr[i].cm.code == hdmi.cfg.cm.code)
-			return &timings_arr[i];
-	}
-	return NULL;
-}
-
-static const struct hdmi_config *hdmi_get_timings(void)
-{
-	const struct hdmi_config *arr;
-	int len;
-
-	if (hdmi.cfg.cm.mode == HDMI_DVI) {
-		arr = vesa_timings;
-		len = ARRAY_SIZE(vesa_timings);
-	} else {
-		arr = cea_timings;
-		len = ARRAY_SIZE(cea_timings);
-	}
-
-	return hdmi_find_timing(arr, len);
-}
-
-static bool hdmi_timings_compare(struct omap_video_timings *timing1,
-				const struct omap_video_timings *timing2)
-{
-	int timing1_vsync, timing1_hsync, timing2_vsync, timing2_hsync;
-
-	if ((DIV_ROUND_CLOSEST(timing2->pixel_clock, 1000) ==
-			DIV_ROUND_CLOSEST(timing1->pixel_clock, 1000)) &&
-		(timing2->x_res == timing1->x_res) &&
-		(timing2->y_res == timing1->y_res)) {
-
-		timing2_hsync = timing2->hfp + timing2->hsw + timing2->hbp;
-		timing1_hsync = timing1->hfp + timing1->hsw + timing1->hbp;
-		timing2_vsync = timing2->vfp + timing2->vsw + timing2->vbp;
-		timing1_vsync = timing2->vfp + timing2->vsw + timing2->vbp;
-
-		DSSDBG("timing1_hsync = %d timing1_vsync = %d"\
-			"timing2_hsync = %d timing2_vsync = %d\n",
-			timing1_hsync, timing1_vsync,
-			timing2_hsync, timing2_vsync);
-
-		if ((timing1_hsync == timing2_hsync) &&
-			(timing1_vsync == timing2_vsync)) {
-			return true;
-		}
-	}
-	return false;
-}
-
-static struct hdmi_cm hdmi_get_code(struct omap_video_timings *timing)
-{
-	int i;
-	struct hdmi_cm cm = {-1};
-	DSSDBG("hdmi_get_code\n");
-
-	for (i = 0; i < ARRAY_SIZE(cea_timings); i++) {
-		if (hdmi_timings_compare(timing, &cea_timings[i].timings)) {
-			cm = cea_timings[i].cm;
-			goto end;
-		}
-	}
-	for (i = 0; i < ARRAY_SIZE(vesa_timings); i++) {
-		if (hdmi_timings_compare(timing, &vesa_timings[i].timings)) {
-			cm = vesa_timings[i].cm;
-			goto end;
-		}
-	}
-
-end:	return cm;
-
-}
-
 static int hdmi_power_on_core(struct omap_dss_device *dssdev)
 {
 	int r;
@@ -550,7 +239,7 @@ static void hdmi_display_set_timing(struct omap_dss_device *dssdev,
 	cm = hdmi_get_code(timings);
 	hdmi.cfg.cm = cm;
 
-	t = hdmi_get_timings();
+	t = hdmi_get_timings(cm.mode, cm.code);
 	if (t != NULL) {
 		hdmi.cfg = *t;
 
@@ -564,10 +253,11 @@ static void hdmi_display_get_timings(struct omap_dss_device *dssdev,
 		struct omap_video_timings *timings)
 {
 	const struct hdmi_config *cfg;
+	struct hdmi_cm cm = hdmi.cfg.cm;
 
-	cfg = hdmi_get_timings();
+	cfg = hdmi_get_timings(cm.mode, cm.code);
 	if (cfg == NULL)
-		cfg = &vesa_timings[0];
+		cfg = hdmi_default_timing();
 
 	memcpy(timings, &cfg->timings, sizeof(cfg->timings));
 }
@@ -695,117 +385,6 @@ static int hdmi_get_clocks(struct platform_device *pdev)
 	return 0;
 }
 
-#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
-int hdmi_compute_acr(u32 sample_freq, u32 *n, u32 *cts)
-{
-	u32 deep_color;
-	bool deep_color_correct = false;
-	u32 pclk = hdmi.cfg.timings.pixel_clock;
-
-	if (n == NULL || cts == NULL)
-		return -EINVAL;
-
-	/* TODO: When implemented, query deep color mode here. */
-	deep_color = 100;
-
-	/*
-	 * When using deep color, the default N value (as in the HDMI
-	 * specification) yields to an non-integer CTS. Hence, we
-	 * modify it while keeping the restrictions described in
-	 * section 7.2.1 of the HDMI 1.4a specification.
-	 */
-	switch (sample_freq) {
-	case 32000:
-	case 48000:
-	case 96000:
-	case 192000:
-		if (deep_color == 125)
-			if (pclk == 27027 || pclk == 74250)
-				deep_color_correct = true;
-		if (deep_color == 150)
-			if (pclk == 27027)
-				deep_color_correct = true;
-		break;
-	case 44100:
-	case 88200:
-	case 176400:
-		if (deep_color == 125)
-			if (pclk == 27027)
-				deep_color_correct = true;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	if (deep_color_correct) {
-		switch (sample_freq) {
-		case 32000:
-			*n = 8192;
-			break;
-		case 44100:
-			*n = 12544;
-			break;
-		case 48000:
-			*n = 8192;
-			break;
-		case 88200:
-			*n = 25088;
-			break;
-		case 96000:
-			*n = 16384;
-			break;
-		case 176400:
-			*n = 50176;
-			break;
-		case 192000:
-			*n = 32768;
-			break;
-		default:
-			return -EINVAL;
-		}
-	} else {
-		switch (sample_freq) {
-		case 32000:
-			*n = 4096;
-			break;
-		case 44100:
-			*n = 6272;
-			break;
-		case 48000:
-			*n = 6144;
-			break;
-		case 88200:
-			*n = 12544;
-			break;
-		case 96000:
-			*n = 12288;
-			break;
-		case 176400:
-			*n = 25088;
-			break;
-		case 192000:
-			*n = 24576;
-			break;
-		default:
-			return -EINVAL;
-		}
-	}
-	/* Calculate CTS. See HDMI 1.3a or 1.4a specifications */
-	*cts = pclk * (*n / 128) * deep_color / (sample_freq / 10);
-
-	return 0;
-}
-
-static bool hdmi_mode_has_audio(void)
-{
-	if (hdmi.cfg.cm.mode == HDMI_HDMI)
-		return true;
-	else
-		return false;
-}
-
-#endif
-
 static int hdmi_connect(struct omap_dss_device *dssdev,
 		struct omap_dss_device *dst)
 {
@@ -878,7 +457,7 @@ static int hdmi_audio_enable(struct omap_dss_device *dssdev)
 
 	mutex_lock(&hdmi.lock);
 
-	if (!hdmi_mode_has_audio()) {
+	if (!hdmi_mode_has_audio(hdmi.cfg.cm.mode)) {
 		r = -EPERM;
 		goto err;
 	}
@@ -916,7 +495,7 @@ static bool hdmi_audio_supported(struct omap_dss_device *dssdev)
 
 	mutex_lock(&hdmi.lock);
 
-	r = hdmi_mode_has_audio();
+	r = hdmi_mode_has_audio(hdmi.cfg.cm.mode);
 
 	mutex_unlock(&hdmi.lock);
 	return r;
@@ -926,15 +505,16 @@ static int hdmi_audio_config(struct omap_dss_device *dssdev,
 		struct omap_dss_audio *audio)
 {
 	int r;
+	u32 pclk = hdmi.cfg.timings.pixel_clock;
 
 	mutex_lock(&hdmi.lock);
 
-	if (!hdmi_mode_has_audio()) {
+	if (!hdmi_mode_has_audio(hdmi.cfg.cm.mode)) {
 		r = -EPERM;
 		goto err;
 	}
 
-	r = hdmi4_audio_config(&hdmi.core, &hdmi.wp, audio);
+	r = hdmi4_audio_config(&hdmi.core, &hdmi.wp, audio, pclk);
 	if (r)
 		goto err;
 
diff --git a/drivers/video/omap2/dss/hdmi4_core.c b/drivers/video/omap2/dss/hdmi4_core.c
index 3f7fc572be10..5dd5e5489b41 100644
--- a/drivers/video/omap2/dss/hdmi4_core.c
+++ b/drivers/video/omap2/dss/hdmi4_core.c
@@ -789,7 +789,7 @@ static void hdmi_core_audio_infoframe_cfg(struct hdmi_core_data *core,
 }
 
 int hdmi4_audio_config(struct hdmi_core_data *core, struct hdmi_wp_data *wp,
-		struct omap_dss_audio *audio)
+		struct omap_dss_audio *audio, u32 pclk)
 {
 	struct hdmi_audio_format audio_format;
 	struct hdmi_audio_dma audio_dma;
@@ -856,7 +856,7 @@ int hdmi4_audio_config(struct hdmi_core_data *core, struct hdmi_wp_data *wp,
 		return -EINVAL;
 	}
 
-	err = hdmi_compute_acr(fs_nr, &n, &cts);
+	err = hdmi_compute_acr(pclk, fs_nr, &n, &cts);
 
 	/* Audio clock regeneration settings */
 	acore.n = n;
diff --git a/drivers/video/omap2/dss/hdmi4_core.h b/drivers/video/omap2/dss/hdmi4_core.h
index 1181b4c1a068..bb646896fa82 100644
--- a/drivers/video/omap2/dss/hdmi4_core.h
+++ b/drivers/video/omap2/dss/hdmi4_core.h
@@ -269,7 +269,7 @@ int hdmi4_core_init(struct platform_device *pdev, struct hdmi_core_data *core);
 int hdmi4_audio_start(struct hdmi_core_data *core, struct hdmi_wp_data *wp);
 void hdmi4_audio_stop(struct hdmi_core_data *core, struct hdmi_wp_data *wp);
 int hdmi4_audio_config(struct hdmi_core_data *core, struct hdmi_wp_data *wp,
-		struct omap_dss_audio *audio);
+		struct omap_dss_audio *audio, u32 pclk);
 int hdmi4_audio_get_dma_port(u32 *offset, u32 *size);
 #endif
 
diff --git a/drivers/video/omap2/dss/hdmi_common.c b/drivers/video/omap2/dss/hdmi_common.c
new file mode 100644
index 000000000000..6f727c858857
--- /dev/null
+++ b/drivers/video/omap2/dss/hdmi_common.c
@@ -0,0 +1,423 @@
+
+/*
+ * Logic for the below structure :
+ * user enters the CEA or VESA timings by specifying the HDMI/DVI code.
+ * There is a correspondence between CEA/VESA timing and code, please
+ * refer to section 6.3 in HDMI 1.3 specification for timing code.
+ *
+ * In the below structure, cea_vesa_timings corresponds to all OMAP4
+ * supported CEA and VESA timing values.code_cea corresponds to the CEA
+ * code, It is used to get the timing from cea_vesa_timing array.Similarly
+ * with code_vesa. Code_index is used for back mapping, that is once EDID
+ * is read from the TV, EDID is parsed to find the timing values and then
+ * map it to corresponding CEA or VESA index.
+ */
+
+#include <linux/kernel.h>
+#include <linux/err.h>
+#include <video/omapdss.h>
+
+#include "hdmi.h"
+
+static const struct hdmi_config cea_timings[] = {
+	{
+		{ 640, 480, 25200, 96, 16, 48, 2, 10, 33,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 1, HDMI_HDMI },
+	},
+	{
+		{ 720, 480, 27027, 62, 16, 60, 6, 9, 30,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 2, HDMI_HDMI },
+	},
+	{
+		{ 1280, 720, 74250, 40, 110, 220, 5, 5, 20,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 4, HDMI_HDMI },
+	},
+	{
+		{ 1920, 540, 74250, 44, 88, 148, 5, 2, 15,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			true, },
+		{ 5, HDMI_HDMI },
+	},
+	{
+		{ 1440, 240, 27027, 124, 38, 114, 3, 4, 15,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
+			true, },
+		{ 6, HDMI_HDMI },
+	},
+	{
+		{ 1920, 1080, 148500, 44, 88, 148, 5, 4, 36,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 16, HDMI_HDMI },
+	},
+	{
+		{ 720, 576, 27000, 64, 12, 68, 5, 5, 39,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 17, HDMI_HDMI },
+	},
+	{
+		{ 1280, 720, 74250, 40, 440, 220, 5, 5, 20,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 19, HDMI_HDMI },
+	},
+	{
+		{ 1920, 540, 74250, 44, 528, 148, 5, 2, 15,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			true, },
+		{ 20, HDMI_HDMI },
+	},
+	{
+		{ 1440, 288, 27000, 126, 24, 138, 3, 2, 19,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
+			true, },
+		{ 21, HDMI_HDMI },
+	},
+	{
+		{ 1440, 576, 54000, 128, 24, 136, 5, 5, 39,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 29, HDMI_HDMI },
+	},
+	{
+		{ 1920, 1080, 148500, 44, 528, 148, 5, 4, 36,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 31, HDMI_HDMI },
+	},
+	{
+		{ 1920, 1080, 74250, 44, 638, 148, 5, 4, 36,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 32, HDMI_HDMI },
+	},
+	{
+		{ 2880, 480, 108108, 248, 64, 240, 6, 9, 30,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 35, HDMI_HDMI },
+	},
+	{
+		{ 2880, 576, 108000, 256, 48, 272, 5, 5, 39,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 37, HDMI_HDMI },
+	},
+};
+
+static const struct hdmi_config vesa_timings[] = {
+/* VESA From Here */
+	{
+		{ 640, 480, 25175, 96, 16, 48, 2, 11, 31,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 4, HDMI_DVI },
+	},
+	{
+		{ 800, 600, 40000, 128, 40, 88, 4, 1, 23,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 9, HDMI_DVI },
+	},
+	{
+		{ 848, 480, 33750, 112, 16, 112, 8, 6, 23,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0xE, HDMI_DVI },
+	},
+	{
+		{ 1280, 768, 79500, 128, 64, 192, 7, 3, 20,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 0x17, HDMI_DVI },
+	},
+	{
+		{ 1280, 800, 83500, 128, 72, 200, 6, 3, 22,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 0x1C, HDMI_DVI },
+	},
+	{
+		{ 1360, 768, 85500, 112, 64, 256, 6, 3, 18,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x27, HDMI_DVI },
+	},
+	{
+		{ 1280, 960, 108000, 112, 96, 312, 3, 1, 36,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x20, HDMI_DVI },
+	},
+	{
+		{ 1280, 1024, 108000, 112, 48, 248, 3, 1, 38,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x23, HDMI_DVI },
+	},
+	{
+		{ 1024, 768, 65000, 136, 24, 160, 6, 3, 29,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 0x10, HDMI_DVI },
+	},
+	{
+		{ 1400, 1050, 121750, 144, 88, 232, 4, 3, 32,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 0x2A, HDMI_DVI },
+	},
+	{
+		{ 1440, 900, 106500, 152, 80, 232, 6, 3, 25,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 0x2F, HDMI_DVI },
+	},
+	{
+		{ 1680, 1050, 146250, 176 , 104, 280, 6, 3, 30,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_LOW,
+			false, },
+		{ 0x3A, HDMI_DVI },
+	},
+	{
+		{ 1366, 768, 85500, 143, 70, 213, 3, 3, 24,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x51, HDMI_DVI },
+	},
+	{
+		{ 1920, 1080, 148500, 44, 148, 80, 5, 4, 36,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x52, HDMI_DVI },
+	},
+	{
+		{ 1280, 768, 68250, 32, 48, 80, 7, 3, 12,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x16, HDMI_DVI },
+	},
+	{
+		{ 1400, 1050, 101000, 32, 48, 80, 4, 3, 23,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x29, HDMI_DVI },
+	},
+	{
+		{ 1680, 1050, 119000, 32, 48, 80, 6, 3, 21,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x39, HDMI_DVI },
+	},
+	{
+		{ 1280, 800, 79500, 32, 48, 80, 6, 3, 14,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x1B, HDMI_DVI },
+	},
+	{
+		{ 1280, 720, 74250, 40, 110, 220, 5, 5, 20,
+			OMAPDSS_SIG_ACTIVE_HIGH, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x55, HDMI_DVI },
+	},
+	{
+		{ 1920, 1200, 154000, 32, 48, 80, 6, 3, 26,
+			OMAPDSS_SIG_ACTIVE_LOW, OMAPDSS_SIG_ACTIVE_HIGH,
+			false, },
+		{ 0x44, HDMI_DVI },
+	},
+};
+
+const struct hdmi_config *hdmi_default_timing(void)
+{
+	return &vesa_timings[0];
+}
+
+static const struct hdmi_config *hdmi_find_timing(int code,
+			const struct hdmi_config *timings_arr, int len)
+{
+	int i;
+
+	for (i = 0; i < len; i++) {
+		if (timings_arr[i].cm.code == code)
+			return &timings_arr[i];
+	}
+
+	return NULL;
+}
+
+const struct hdmi_config *hdmi_get_timings(int mode, int code)
+{
+	const struct hdmi_config *arr;
+	int len;
+
+	if (mode == HDMI_DVI) {
+		arr = vesa_timings;
+		len = ARRAY_SIZE(vesa_timings);
+	} else {
+		arr = cea_timings;
+		len = ARRAY_SIZE(cea_timings);
+	}
+
+	return hdmi_find_timing(code, arr, len);
+}
+
+static bool hdmi_timings_compare(struct omap_video_timings *timing1,
+			const struct omap_video_timings *timing2)
+{
+	int timing1_vsync, timing1_hsync, timing2_vsync, timing2_hsync;
+
+	if ((DIV_ROUND_CLOSEST(timing2->pixel_clock, 1000) ==
+			DIV_ROUND_CLOSEST(timing1->pixel_clock, 1000)) &&
+		(timing2->x_res == timing1->x_res) &&
+		(timing2->y_res == timing1->y_res)) {
+
+		timing2_hsync = timing2->hfp + timing2->hsw + timing2->hbp;
+		timing1_hsync = timing1->hfp + timing1->hsw + timing1->hbp;
+		timing2_vsync = timing2->vfp + timing2->vsw + timing2->vbp;
+		timing1_vsync = timing2->vfp + timing2->vsw + timing2->vbp;
+
+		DSSDBG("timing1_hsync = %d timing1_vsync = %d"\
+			"timing2_hsync = %d timing2_vsync = %d\n",
+			timing1_hsync, timing1_vsync,
+			timing2_hsync, timing2_vsync);
+
+		if ((timing1_hsync == timing2_hsync) &&
+			(timing1_vsync == timing2_vsync)) {
+			return true;
+		}
+	}
+	return false;
+}
+
+struct hdmi_cm hdmi_get_code(struct omap_video_timings *timing)
+{
+	int i;
+	struct hdmi_cm cm = {-1};
+	DSSDBG("hdmi_get_code\n");
+
+	for (i = 0; i < ARRAY_SIZE(cea_timings); i++) {
+		if (hdmi_timings_compare(timing, &cea_timings[i].timings)) {
+			cm = cea_timings[i].cm;
+			goto end;
+		}
+	}
+	for (i = 0; i < ARRAY_SIZE(vesa_timings); i++) {
+		if (hdmi_timings_compare(timing, &vesa_timings[i].timings)) {
+			cm = vesa_timings[i].cm;
+			goto end;
+		}
+	}
+
+end:
+	return cm;
+}
+
+#if defined(CONFIG_OMAP4_DSS_HDMI_AUDIO)
+int hdmi_compute_acr(u32 pclk, u32 sample_freq, u32 *n, u32 *cts)
+{
+	u32 deep_color;
+	bool deep_color_correct = false;
+
+	if (n == NULL || cts == NULL)
+		return -EINVAL;
+
+	/* TODO: When implemented, query deep color mode here. */
+	deep_color = 100;
+
+	/*
+	 * When using deep color, the default N value (as in the HDMI
+	 * specification) yields to an non-integer CTS. Hence, we
+	 * modify it while keeping the restrictions described in
+	 * section 7.2.1 of the HDMI 1.4a specification.
+	 */
+	switch (sample_freq) {
+	case 32000:
+	case 48000:
+	case 96000:
+	case 192000:
+		if (deep_color == 125)
+			if (pclk == 27027 || pclk == 74250)
+				deep_color_correct = true;
+		if (deep_color == 150)
+			if (pclk == 27027)
+				deep_color_correct = true;
+		break;
+	case 44100:
+	case 88200:
+	case 176400:
+		if (deep_color == 125)
+			if (pclk == 27027)
+				deep_color_correct = true;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (deep_color_correct) {
+		switch (sample_freq) {
+		case 32000:
+			*n = 8192;
+			break;
+		case 44100:
+			*n = 12544;
+			break;
+		case 48000:
+			*n = 8192;
+			break;
+		case 88200:
+			*n = 25088;
+			break;
+		case 96000:
+			*n = 16384;
+			break;
+		case 176400:
+			*n = 50176;
+			break;
+		case 192000:
+			*n = 32768;
+			break;
+		default:
+			return -EINVAL;
+		}
+	} else {
+		switch (sample_freq) {
+		case 32000:
+			*n = 4096;
+			break;
+		case 44100:
+			*n = 6272;
+			break;
+		case 48000:
+			*n = 6144;
+			break;
+		case 88200:
+			*n = 12544;
+			break;
+		case 96000:
+			*n = 12288;
+			break;
+		case 176400:
+			*n = 25088;
+			break;
+		case 192000:
+			*n = 24576;
+			break;
+		default:
+			return -EINVAL;
+		}
+	}
+	/* Calculate CTS. See HDMI 1.3a or 1.4a specifications */
+	*cts = pclk * (*n / 128) * deep_color / (sample_freq / 10);
+
+	return 0;
+}
+#endif
-- 
cgit 


From 7831b2ae4a348144be95ccac49d67aa54d6f0dc0 Mon Sep 17 00:00:00 2001
From: Richard Röjfors <richard.rojfors@gmail.com>
Date: Thu, 3 Oct 2013 20:45:19 +0200
Subject: OMAPDSS: HDMI: Correctly compare timings
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

There is currently a copy and paste error where the hdmi vsync timings are not
compared correctly, this patch fixes this.

Signed-off-by: Richard Röjfors <richard.rojfors@gmail.com>
[tomi.valkeinen@ti.com: fixed to apply on top of latest tree]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/hdmi_common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/omap2/dss/hdmi_common.c b/drivers/video/omap2/dss/hdmi_common.c
index 6f727c858857..5586aaad9d63 100644
--- a/drivers/video/omap2/dss/hdmi_common.c
+++ b/drivers/video/omap2/dss/hdmi_common.c
@@ -283,7 +283,7 @@ static bool hdmi_timings_compare(struct omap_video_timings *timing1,
 		timing2_hsync = timing2->hfp + timing2->hsw + timing2->hbp;
 		timing1_hsync = timing1->hfp + timing1->hsw + timing1->hbp;
 		timing2_vsync = timing2->vfp + timing2->vsw + timing2->vbp;
-		timing1_vsync = timing2->vfp + timing2->vsw + timing2->vbp;
+		timing1_vsync = timing1->vfp + timing1->vsw + timing1->vbp;
 
 		DSSDBG("timing1_hsync = %d timing1_vsync = %d"\
 			"timing2_hsync = %d timing2_vsync = %d\n",
-- 
cgit 


From 7ad9684721606efbfb9b347346816e1e6baff8bb Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Wed, 2 Oct 2013 13:55:10 +0200
Subject: hyperv-fb: add pci stub

This patch adds a pci stub driver to hyper-fb.  The hyperv framebuffer
driver will bind to the pci device then, so linux kernel and userspace
know there is a proper kernel driver for the device active.  lspci shows
this for example:

[root@dhcp231 ~]# lspci -vs8
00:08.0 VGA compatible controller: Microsoft Corporation Hyper-V virtual
VGA (prog-if 00 [VGA controller])
        Flags: bus master, fast devsel, latency 0, IRQ 11
        Memory at f8000000 (32-bit, non-prefetchable) [size=64M]
        Expansion ROM at <unassigned> [disabled]
        Kernel driver in use: hyperv_fb

Another effect is that the xorg vesa driver will not attach to the
device and thus the Xorg server will automatically use the fbdev
driver instead.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/hyperv_fb.c | 40 +++++++++++++++++++++++++++++++++++++++-
 1 file changed, 39 insertions(+), 1 deletion(-)

diff --git a/drivers/video/hyperv_fb.c b/drivers/video/hyperv_fb.c
index 8ac99b87c07e..8d456dc449b8 100644
--- a/drivers/video/hyperv_fb.c
+++ b/drivers/video/hyperv_fb.c
@@ -795,12 +795,21 @@ static int hvfb_remove(struct hv_device *hdev)
 }
 
 
+static DEFINE_PCI_DEVICE_TABLE(pci_stub_id_table) = {
+	{
+		.vendor      = PCI_VENDOR_ID_MICROSOFT,
+		.device      = PCI_DEVICE_ID_HYPERV_VIDEO,
+	},
+	{ /* end of list */ }
+};
+
 static const struct hv_vmbus_device_id id_table[] = {
 	/* Synthetic Video Device GUID */
 	{HV_SYNTHVID_GUID},
 	{}
 };
 
+MODULE_DEVICE_TABLE(pci, pci_stub_id_table);
 MODULE_DEVICE_TABLE(vmbus, id_table);
 
 static struct hv_driver hvfb_drv = {
@@ -810,14 +819,43 @@ static struct hv_driver hvfb_drv = {
 	.remove = hvfb_remove,
 };
 
+static int hvfb_pci_stub_probe(struct pci_dev *pdev,
+			       const struct pci_device_id *ent)
+{
+	return 0;
+}
+
+static void hvfb_pci_stub_remove(struct pci_dev *pdev)
+{
+}
+
+static struct pci_driver hvfb_pci_stub_driver = {
+	.name =		KBUILD_MODNAME,
+	.id_table =	pci_stub_id_table,
+	.probe =	hvfb_pci_stub_probe,
+	.remove =	hvfb_pci_stub_remove,
+};
 
 static int __init hvfb_drv_init(void)
 {
-	return vmbus_driver_register(&hvfb_drv);
+	int ret;
+
+	ret = vmbus_driver_register(&hvfb_drv);
+	if (ret != 0)
+		return ret;
+
+	ret = pci_register_driver(&hvfb_pci_stub_driver);
+	if (ret != 0) {
+		vmbus_driver_unregister(&hvfb_drv);
+		return ret;
+	}
+
+	return 0;
 }
 
 static void __exit hvfb_drv_exit(void)
 {
+	pci_unregister_driver(&hvfb_pci_stub_driver);
 	vmbus_driver_unregister(&hvfb_drv);
 }
 
-- 
cgit 


From 9b5254b4604d358e64d1798544e242f67a81c106 Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Wed, 2 Oct 2013 13:55:11 +0200
Subject: hyperv-fb: add blanking support

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/hyperv_fb.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/video/hyperv_fb.c b/drivers/video/hyperv_fb.c
index 8d456dc449b8..130708f96430 100644
--- a/drivers/video/hyperv_fb.c
+++ b/drivers/video/hyperv_fb.c
@@ -575,6 +575,10 @@ static int hvfb_setcolreg(unsigned regno, unsigned red, unsigned green,
 	return 0;
 }
 
+static int hvfb_blank(int blank, struct fb_info *info)
+{
+	return 1;	/* get fb_blank to set the colormap to all black */
+}
 
 static struct fb_ops hvfb_ops = {
 	.owner = THIS_MODULE,
@@ -584,6 +588,7 @@ static struct fb_ops hvfb_ops = {
 	.fb_fillrect = cfb_fillrect,
 	.fb_copyarea = cfb_copyarea,
 	.fb_imageblit = cfb_imageblit,
+	.fb_blank = hvfb_blank,
 };
 
 
-- 
cgit 


From bd04363d3990c0727b7512a79a08c68436878bb0 Mon Sep 17 00:00:00 2001
From: Elias Vanderstuyft <Elias.vds@gmail.com>
Date: Mon, 7 Oct 2013 19:48:12 +0300
Subject: HID: logitech - lg2ff: Add IDs for Formula Vibration Feedback Wheel

Add USB IDs for Logitech Formula Vibration Feedback Wheel (046d:ca04).

The lg2ff force feedback subdriver is used for vibration and
HID_GD_MULTIAXIS is set to avoid deadzone like other Logitech wheels.

Kconfig description etc are also updated accordingly.

Signed-off-by: Elias Vanderstuyft <Elias.vds@gmail.com>
[anssi.hannula@iki.fi: added description and CCs]
Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/Kconfig     | 8 +++++---
 drivers/hid/hid-core.c  | 1 +
 drivers/hid/hid-ids.h   | 1 +
 drivers/hid/hid-lg.c    | 3 +++
 drivers/hid/hid-lg2ff.c | 2 +-
 5 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index c91d547191dd..46fd27f6f026 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -369,12 +369,14 @@ config LOGITECH_FF
 	  force feedback.
 
 config LOGIRUMBLEPAD2_FF
-	bool "Logitech RumblePad/Rumblepad 2 force feedback support"
+	bool "Logitech force feedback support (variant 2)"
 	depends on HID_LOGITECH
 	select INPUT_FF_MEMLESS
 	help
-	  Say Y here if you want to enable force feedback support for Logitech
-	  RumblePad and Rumblepad 2 devices.
+	  Say Y here if you want to enable force feedback support for:
+	  - Logitech RumblePad
+	  - Logitech Rumblepad 2
+	  - Logitech Formula Vibration Feedback Wheel
 
 config LOGIG940_FF
 	bool "Logitech Flight System G940 force feedback support"
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 5a8c01112a23..95d2dff0a7ee 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1753,6 +1753,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 9cbc7ab07dfa..312d7fd20ee1 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -571,6 +571,7 @@
 #define USB_DEVICE_ID_DINOVO_EDGE	0xc714
 #define USB_DEVICE_ID_DINOVO_MINI	0xc71f
 #define USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2	0xca03
+#define USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL	0xca04
 
 #define USB_VENDOR_ID_LUMIO		0x202e
 #define USB_DEVICE_ID_CRYSTALTOUCH	0x0006
diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c
index 6f12ecd36c88..c2c7dab7d2c4 100644
--- a/drivers/hid/hid-lg.c
+++ b/drivers/hid/hid-lg.c
@@ -492,6 +492,7 @@ static int lg_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 		case USB_DEVICE_ID_LOGITECH_G27_WHEEL:
 		case USB_DEVICE_ID_LOGITECH_WII_WHEEL:
 		case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2:
+		case USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL:
 			field->application = HID_GD_MULTIAXIS;
 			break;
 		default:
@@ -639,6 +640,8 @@ static const struct hid_device_id lg_devices[] = {
 		.driver_data = LG_NOGET | LG_FF4 },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2),
 		.driver_data = LG_FF4 },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL),
+		.driver_data = LG_FF2 },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL),
 		.driver_data = LG_FF4 },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL),
diff --git a/drivers/hid/hid-lg2ff.c b/drivers/hid/hid-lg2ff.c
index 1a42eaa6ca02..0e3fb1a7e421 100644
--- a/drivers/hid/hid-lg2ff.c
+++ b/drivers/hid/hid-lg2ff.c
@@ -95,7 +95,7 @@ int lg2ff_init(struct hid_device *hid)
 
 	hid_hw_request(hid, report, HID_REQ_SET_REPORT);
 
-	hid_info(hid, "Force feedback for Logitech RumblePad/Rumblepad 2 by Anssi Hannula <anssi.hannula@gmail.com>\n");
+	hid_info(hid, "Force feedback for Logitech variant 2 rumble devices by Anssi Hannula <anssi.hannula@gmail.com>\n");
 
 	return 0;
 }
-- 
cgit 


From 10fc05d0e551146ad6feb0ab8902d28a2d3c5624 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:28:40 +0100
Subject: mm: numa: Document automatic NUMA balancing sysctls

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-3-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 Documentation/sysctl/kernel.txt | 66 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 66 insertions(+)

diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index 9d4c1d18ad44..1428c6659254 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -355,6 +355,72 @@ utilize.
 
 ==============================================================
 
+numa_balancing
+
+Enables/disables automatic page fault based NUMA memory
+balancing. Memory is moved automatically to nodes
+that access it often.
+
+Enables/disables automatic NUMA memory balancing. On NUMA machines, there
+is a performance penalty if remote memory is accessed by a CPU. When this
+feature is enabled the kernel samples what task thread is accessing memory
+by periodically unmapping pages and later trapping a page fault. At the
+time of the page fault, it is determined if the data being accessed should
+be migrated to a local memory node.
+
+The unmapping of pages and trapping faults incur additional overhead that
+ideally is offset by improved memory locality but there is no universal
+guarantee. If the target workload is already bound to NUMA nodes then this
+feature should be disabled. Otherwise, if the system overhead from the
+feature is too high then the rate the kernel samples for NUMA hinting
+faults may be controlled by the numa_balancing_scan_period_min_ms,
+numa_balancing_scan_delay_ms, numa_balancing_scan_period_reset,
+numa_balancing_scan_period_max_ms and numa_balancing_scan_size_mb sysctls.
+
+==============================================================
+
+numa_balancing_scan_period_min_ms, numa_balancing_scan_delay_ms,
+numa_balancing_scan_period_max_ms, numa_balancing_scan_period_reset,
+numa_balancing_scan_size_mb
+
+Automatic NUMA balancing scans tasks address space and unmaps pages to
+detect if pages are properly placed or if the data should be migrated to a
+memory node local to where the task is running.  Every "scan delay" the task
+scans the next "scan size" number of pages in its address space. When the
+end of the address space is reached the scanner restarts from the beginning.
+
+In combination, the "scan delay" and "scan size" determine the scan rate.
+When "scan delay" decreases, the scan rate increases.  The scan delay and
+hence the scan rate of every task is adaptive and depends on historical
+behaviour. If pages are properly placed then the scan delay increases,
+otherwise the scan delay decreases.  The "scan size" is not adaptive but
+the higher the "scan size", the higher the scan rate.
+
+Higher scan rates incur higher system overhead as page faults must be
+trapped and potentially data must be migrated. However, the higher the scan
+rate, the more quickly a tasks memory is migrated to a local node if the
+workload pattern changes and minimises performance impact due to remote
+memory accesses. These sysctls control the thresholds for scan delays and
+the number of pages scanned.
+
+numa_balancing_scan_period_min_ms is the minimum delay in milliseconds
+between scans. It effectively controls the maximum scanning rate for
+each task.
+
+numa_balancing_scan_delay_ms is the starting "scan delay" used for a task
+when it initially forks.
+
+numa_balancing_scan_period_max_ms is the maximum delay between scans. It
+effectively controls the minimum scanning rate for each task.
+
+numa_balancing_scan_size_mb is how many megabytes worth of pages are
+scanned for a given scan.
+
+numa_balancing_scan_period_reset is a blunt instrument that controls how
+often a tasks scan delay is reset to detect sudden changes in task behaviour.
+
+==============================================================
+
 osrelease, ostype & version:
 
 # cat osrelease
-- 
cgit 


From c69307d533d7aa7cc8894dbbb8a274599f8630d7 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 7 Oct 2013 11:28:41 +0100
Subject: sched/numa: Fix comments

Fix a 80 column violation and a PTE vs PMD reference.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1381141781-10992-4-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 8 ++++----
 mm/huge_memory.c    | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 2b89cd244b0d..817cd7bfd517 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -988,10 +988,10 @@ void task_numa_work(struct callback_head *work)
 
 out:
 	/*
-	 * It is possible to reach the end of the VMA list but the last few VMAs are
-	 * not guaranteed to the vma_migratable. If they are not, we would find the
-	 * !migratable VMA on the next scan but not reset the scanner to the start
-	 * so check it now.
+	 * It is possible to reach the end of the VMA list but the last few
+	 * VMAs are not guaranteed to the vma_migratable. If they are not, we
+	 * would find the !migratable VMA on the next scan but not reset the
+	 * scanner to the start so check it now.
 	 */
 	if (vma)
 		mm->numa_scan_offset = start;
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 7489884682d8..19dbb08c64a5 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1305,7 +1305,7 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	spin_unlock(&mm->page_table_lock);
 	lock_page(page);
 
-	/* Confirm the PTE did not while locked */
+	/* Confirm the PMD did not change while page_table_lock was released */
 	spin_lock(&mm->page_table_lock);
 	if (unlikely(!pmd_same(pmd, *pmdp))) {
 		unlock_page(page);
-- 
cgit 


From 0c3a775e1e0b069bf765f8355b723ce0d18dcc6c Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:28:42 +0100
Subject: mm: numa: Do not account for a hinting fault if we raced

If another task handled a hinting fault in parallel then do not double
account for it.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-5-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 mm/huge_memory.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 19dbb08c64a5..dab2bab9d33e 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1325,8 +1325,11 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 
 check_same:
 	spin_lock(&mm->page_table_lock);
-	if (unlikely(!pmd_same(pmd, *pmdp)))
+	if (unlikely(!pmd_same(pmd, *pmdp))) {
+		/* Someone else took our fault */
+		current_nid = -1;
 		goto out_unlock;
+	}
 clear_pmdnuma:
 	pmd = pmd_mknonnuma(pmd);
 	set_pmd_at(mm, haddr, pmdp, pmd);
-- 
cgit 


From ff9042b11a71c81238c70af168cd36b98a6d5a3c Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:28:43 +0100
Subject: mm: Wait for THP migrations to complete during NUMA hinting faults

The locking for migrating THP is unusual. While normal page migration
prevents parallel accesses using a migration PTE, THP migration relies on
a combination of the page_table_lock, the page lock and the existance of
the NUMA hinting PTE to guarantee safety but there is a bug in the scheme.

If a THP page is currently being migrated and another thread traps a
fault on the same page it checks if the page is misplaced. If it is not,
then pmd_numa is cleared. The problem is that it checks if the page is
misplaced without holding the page lock meaning that the racing thread
can be migrating the THP when the second thread clears the NUMA bit
and faults a stale page.

This patch checks if the page is potentially being migrated and stalls
using the lock_page if it is potentially being migrated before checking
if the page is misplaced or not.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-6-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 mm/huge_memory.c | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index dab2bab9d33e..f362363c0fad 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1295,13 +1295,14 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	if (current_nid == numa_node_id())
 		count_vm_numa_event(NUMA_HINT_FAULTS_LOCAL);
 
-	target_nid = mpol_misplaced(page, vma, haddr);
-	if (target_nid == -1) {
-		put_page(page);
-		goto clear_pmdnuma;
-	}
+	/*
+	 * Acquire the page lock to serialise THP migrations but avoid dropping
+	 * page_table_lock if at all possible
+	 */
+	if (trylock_page(page))
+		goto got_lock;
 
-	/* Acquire the page lock to serialise THP migrations */
+	/* Serialise against migrationa and check placement check placement */
 	spin_unlock(&mm->page_table_lock);
 	lock_page(page);
 
@@ -1312,9 +1313,17 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		put_page(page);
 		goto out_unlock;
 	}
-	spin_unlock(&mm->page_table_lock);
+
+got_lock:
+	target_nid = mpol_misplaced(page, vma, haddr);
+	if (target_nid == -1) {
+		unlock_page(page);
+		put_page(page);
+		goto clear_pmdnuma;
+	}
 
 	/* Migrate the THP to the requested node */
+	spin_unlock(&mm->page_table_lock);
 	migrated = migrate_misplaced_transhuge_page(mm, vma,
 				pmdp, pmd, addr, page, target_nid);
 	if (!migrated)
-- 
cgit 


From b8916634b77bffb233d8f2f45703c80343457cc1 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:28:44 +0100
Subject: mm: Prevent parallel splits during THP migration

THP migrations are serialised by the page lock but on its own that does
not prevent THP splits. If the page is split during THP migration then
the pmd_same checks will prevent page table corruption but the unlock page
and other fix-ups potentially will cause corruption. This patch takes the
anon_vma lock to prevent parallel splits during migration.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-7-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 mm/huge_memory.c | 44 ++++++++++++++++++++++++++++++--------------
 1 file changed, 30 insertions(+), 14 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index f362363c0fad..1d6334fc8b6d 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1278,18 +1278,18 @@ out:
 int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 				unsigned long addr, pmd_t pmd, pmd_t *pmdp)
 {
+	struct anon_vma *anon_vma = NULL;
 	struct page *page;
 	unsigned long haddr = addr & HPAGE_PMD_MASK;
 	int target_nid;
 	int current_nid = -1;
-	bool migrated;
+	bool migrated, page_locked;
 
 	spin_lock(&mm->page_table_lock);
 	if (unlikely(!pmd_same(pmd, *pmdp)))
 		goto out_unlock;
 
 	page = pmd_page(pmd);
-	get_page(page);
 	current_nid = page_to_nid(page);
 	count_vm_numa_event(NUMA_HINT_FAULTS);
 	if (current_nid == numa_node_id())
@@ -1299,12 +1299,29 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	 * Acquire the page lock to serialise THP migrations but avoid dropping
 	 * page_table_lock if at all possible
 	 */
-	if (trylock_page(page))
-		goto got_lock;
+	page_locked = trylock_page(page);
+	target_nid = mpol_misplaced(page, vma, haddr);
+	if (target_nid == -1) {
+		/* If the page was locked, there are no parallel migrations */
+		if (page_locked) {
+			unlock_page(page);
+			goto clear_pmdnuma;
+		}
 
-	/* Serialise against migrationa and check placement check placement */
+		/* Otherwise wait for potential migrations and retry fault */
+		spin_unlock(&mm->page_table_lock);
+		wait_on_page_locked(page);
+		goto out;
+	}
+
+	/* Page is misplaced, serialise migrations and parallel THP splits */
+	get_page(page);
 	spin_unlock(&mm->page_table_lock);
-	lock_page(page);
+	if (!page_locked) {
+		lock_page(page);
+		page_locked = true;
+	}
+	anon_vma = page_lock_anon_vma_read(page);
 
 	/* Confirm the PMD did not change while page_table_lock was released */
 	spin_lock(&mm->page_table_lock);
@@ -1314,14 +1331,6 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		goto out_unlock;
 	}
 
-got_lock:
-	target_nid = mpol_misplaced(page, vma, haddr);
-	if (target_nid == -1) {
-		unlock_page(page);
-		put_page(page);
-		goto clear_pmdnuma;
-	}
-
 	/* Migrate the THP to the requested node */
 	spin_unlock(&mm->page_table_lock);
 	migrated = migrate_misplaced_transhuge_page(mm, vma,
@@ -1330,6 +1339,8 @@ got_lock:
 		goto check_same;
 
 	task_numa_fault(target_nid, HPAGE_PMD_NR, true);
+	if (anon_vma)
+		page_unlock_anon_vma_read(anon_vma);
 	return 0;
 
 check_same:
@@ -1346,6 +1357,11 @@ clear_pmdnuma:
 	update_mmu_cache_pmd(vma, addr, pmdp);
 out_unlock:
 	spin_unlock(&mm->page_table_lock);
+
+out:
+	if (anon_vma)
+		page_unlock_anon_vma_read(anon_vma);
+
 	if (current_nid != -1)
 		task_numa_fault(current_nid, HPAGE_PMD_NR, false);
 	return 0;
-- 
cgit 


From 8191acbd30c73e45c24ad16c372e0b42cc7ac8f8 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:28:45 +0100
Subject: mm: numa: Sanitize task_numa_fault() callsites

There are three callers of task_numa_fault():

 - do_huge_pmd_numa_page():
     Accounts against the current node, not the node where the
     page resides, unless we migrated, in which case it accounts
     against the node we migrated to.

 - do_numa_page():
     Accounts against the current node, not the node where the
     page resides, unless we migrated, in which case it accounts
     against the node we migrated to.

 - do_pmd_numa_page():
     Accounts not at all when the page isn't migrated, otherwise
     accounts against the node we migrated towards.

This seems wrong to me; all three sites should have the same
sementaics, furthermore we should accounts against where the page
really is, we already know where the task is.

So modify all three sites to always account; we did after all receive
the fault; and always account to where the page is after migration,
regardless of success.

They all still differ on when they clear the PTE/PMD; ideally that
would get sorted too.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-8-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 mm/huge_memory.c | 25 +++++++++++++------------
 mm/memory.c      | 53 +++++++++++++++++++++--------------------------------
 2 files changed, 34 insertions(+), 44 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 1d6334fc8b6d..c3bb65f284d5 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1281,18 +1281,19 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	struct anon_vma *anon_vma = NULL;
 	struct page *page;
 	unsigned long haddr = addr & HPAGE_PMD_MASK;
+	int page_nid = -1, this_nid = numa_node_id();
 	int target_nid;
-	int current_nid = -1;
-	bool migrated, page_locked;
+	bool page_locked;
+	bool migrated = false;
 
 	spin_lock(&mm->page_table_lock);
 	if (unlikely(!pmd_same(pmd, *pmdp)))
 		goto out_unlock;
 
 	page = pmd_page(pmd);
-	current_nid = page_to_nid(page);
+	page_nid = page_to_nid(page);
 	count_vm_numa_event(NUMA_HINT_FAULTS);
-	if (current_nid == numa_node_id())
+	if (page_nid == this_nid)
 		count_vm_numa_event(NUMA_HINT_FAULTS_LOCAL);
 
 	/*
@@ -1335,19 +1336,18 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	spin_unlock(&mm->page_table_lock);
 	migrated = migrate_misplaced_transhuge_page(mm, vma,
 				pmdp, pmd, addr, page, target_nid);
-	if (!migrated)
+	if (migrated)
+		page_nid = target_nid;
+	else
 		goto check_same;
 
-	task_numa_fault(target_nid, HPAGE_PMD_NR, true);
-	if (anon_vma)
-		page_unlock_anon_vma_read(anon_vma);
-	return 0;
+	goto out;
 
 check_same:
 	spin_lock(&mm->page_table_lock);
 	if (unlikely(!pmd_same(pmd, *pmdp))) {
 		/* Someone else took our fault */
-		current_nid = -1;
+		page_nid = -1;
 		goto out_unlock;
 	}
 clear_pmdnuma:
@@ -1362,8 +1362,9 @@ out:
 	if (anon_vma)
 		page_unlock_anon_vma_read(anon_vma);
 
-	if (current_nid != -1)
-		task_numa_fault(current_nid, HPAGE_PMD_NR, false);
+	if (page_nid != -1)
+		task_numa_fault(page_nid, HPAGE_PMD_NR, migrated);
+
 	return 0;
 }
 
diff --git a/mm/memory.c b/mm/memory.c
index ca0003947115..42ae82ee04c1 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3519,12 +3519,12 @@ static int do_nonlinear_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 }
 
 int numa_migrate_prep(struct page *page, struct vm_area_struct *vma,
-				unsigned long addr, int current_nid)
+				unsigned long addr, int page_nid)
 {
 	get_page(page);
 
 	count_vm_numa_event(NUMA_HINT_FAULTS);
-	if (current_nid == numa_node_id())
+	if (page_nid == numa_node_id())
 		count_vm_numa_event(NUMA_HINT_FAULTS_LOCAL);
 
 	return mpol_misplaced(page, vma, addr);
@@ -3535,7 +3535,7 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 {
 	struct page *page = NULL;
 	spinlock_t *ptl;
-	int current_nid = -1;
+	int page_nid = -1;
 	int target_nid;
 	bool migrated = false;
 
@@ -3565,15 +3565,10 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		return 0;
 	}
 
-	current_nid = page_to_nid(page);
-	target_nid = numa_migrate_prep(page, vma, addr, current_nid);
+	page_nid = page_to_nid(page);
+	target_nid = numa_migrate_prep(page, vma, addr, page_nid);
 	pte_unmap_unlock(ptep, ptl);
 	if (target_nid == -1) {
-		/*
-		 * Account for the fault against the current node if it not
-		 * being replaced regardless of where the page is located.
-		 */
-		current_nid = numa_node_id();
 		put_page(page);
 		goto out;
 	}
@@ -3581,11 +3576,11 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	/* Migrate to the requested node */
 	migrated = migrate_misplaced_page(page, target_nid);
 	if (migrated)
-		current_nid = target_nid;
+		page_nid = target_nid;
 
 out:
-	if (current_nid != -1)
-		task_numa_fault(current_nid, 1, migrated);
+	if (page_nid != -1)
+		task_numa_fault(page_nid, 1, migrated);
 	return 0;
 }
 
@@ -3600,7 +3595,6 @@ static int do_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	unsigned long offset;
 	spinlock_t *ptl;
 	bool numa = false;
-	int local_nid = numa_node_id();
 
 	spin_lock(&mm->page_table_lock);
 	pmd = *pmdp;
@@ -3623,9 +3617,10 @@ static int do_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	for (addr = _addr + offset; addr < _addr + PMD_SIZE; pte++, addr += PAGE_SIZE) {
 		pte_t pteval = *pte;
 		struct page *page;
-		int curr_nid = local_nid;
+		int page_nid = -1;
 		int target_nid;
-		bool migrated;
+		bool migrated = false;
+
 		if (!pte_present(pteval))
 			continue;
 		if (!pte_numa(pteval))
@@ -3647,25 +3642,19 @@ static int do_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		if (unlikely(page_mapcount(page) != 1))
 			continue;
 
-		/*
-		 * Note that the NUMA fault is later accounted to either
-		 * the node that is currently running or where the page is
-		 * migrated to.
-		 */
-		curr_nid = local_nid;
-		target_nid = numa_migrate_prep(page, vma, addr,
-					       page_to_nid(page));
-		if (target_nid == -1) {
+		page_nid = page_to_nid(page);
+		target_nid = numa_migrate_prep(page, vma, addr, page_nid);
+		pte_unmap_unlock(pte, ptl);
+		if (target_nid != -1) {
+			migrated = migrate_misplaced_page(page, target_nid);
+			if (migrated)
+				page_nid = target_nid;
+		} else {
 			put_page(page);
-			continue;
 		}
 
-		/* Migrate to the requested node */
-		pte_unmap_unlock(pte, ptl);
-		migrated = migrate_misplaced_page(page, target_nid);
-		if (migrated)
-			curr_nid = target_nid;
-		task_numa_fault(curr_nid, 1, migrated);
+		if (page_nid != -1)
+			task_numa_fault(page_nid, 1, migrated);
 
 		pte = pte_offset_map_lock(mm, pmdp, addr, &ptl);
 	}
-- 
cgit 


From a54a407fbf7735fd8f7841375574f5d9b0375f93 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:28:46 +0100
Subject: mm: Close races between THP migration and PMD numa clearing

THP migration uses the page lock to guard against parallel allocations
but there are cases like this still open

  Task A					Task B
  ---------------------				---------------------
  do_huge_pmd_numa_page				do_huge_pmd_numa_page
  lock_page
  mpol_misplaced == -1
  unlock_page
  goto clear_pmdnuma
						lock_page
						mpol_misplaced == 2
						migrate_misplaced_transhuge
  pmd = pmd_mknonnuma
  set_pmd_at

During hours of testing, one crashed with weird errors and while I have
no direct evidence, I suspect something like the race above happened.
This patch extends the page lock to being held until the pmd_numa is
cleared to prevent migration starting in parallel while the pmd_numa is
being cleared. It also flushes the old pmd entry and orders pagetable
insertion before rmap insertion.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-9-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 mm/huge_memory.c | 33 +++++++++++++++------------------
 mm/migrate.c     | 19 +++++++++++--------
 2 files changed, 26 insertions(+), 26 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index c3bb65f284d5..d4928769680f 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1304,24 +1304,25 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	target_nid = mpol_misplaced(page, vma, haddr);
 	if (target_nid == -1) {
 		/* If the page was locked, there are no parallel migrations */
-		if (page_locked) {
-			unlock_page(page);
+		if (page_locked)
 			goto clear_pmdnuma;
-		}
 
-		/* Otherwise wait for potential migrations and retry fault */
+		/*
+		 * Otherwise wait for potential migrations and retry. We do
+		 * relock and check_same as the page may no longer be mapped.
+		 * As the fault is being retried, do not account for it.
+		 */
 		spin_unlock(&mm->page_table_lock);
 		wait_on_page_locked(page);
+		page_nid = -1;
 		goto out;
 	}
 
 	/* Page is misplaced, serialise migrations and parallel THP splits */
 	get_page(page);
 	spin_unlock(&mm->page_table_lock);
-	if (!page_locked) {
+	if (!page_locked)
 		lock_page(page);
-		page_locked = true;
-	}
 	anon_vma = page_lock_anon_vma_read(page);
 
 	/* Confirm the PMD did not change while page_table_lock was released */
@@ -1329,32 +1330,28 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	if (unlikely(!pmd_same(pmd, *pmdp))) {
 		unlock_page(page);
 		put_page(page);
+		page_nid = -1;
 		goto out_unlock;
 	}
 
-	/* Migrate the THP to the requested node */
+	/*
+	 * Migrate the THP to the requested node, returns with page unlocked
+	 * and pmd_numa cleared.
+	 */
 	spin_unlock(&mm->page_table_lock);
 	migrated = migrate_misplaced_transhuge_page(mm, vma,
 				pmdp, pmd, addr, page, target_nid);
 	if (migrated)
 		page_nid = target_nid;
-	else
-		goto check_same;
 
 	goto out;
-
-check_same:
-	spin_lock(&mm->page_table_lock);
-	if (unlikely(!pmd_same(pmd, *pmdp))) {
-		/* Someone else took our fault */
-		page_nid = -1;
-		goto out_unlock;
-	}
 clear_pmdnuma:
+	BUG_ON(!PageLocked(page));
 	pmd = pmd_mknonnuma(pmd);
 	set_pmd_at(mm, haddr, pmdp, pmd);
 	VM_BUG_ON(pmd_numa(*pmdp));
 	update_mmu_cache_pmd(vma, addr, pmdp);
+	unlock_page(page);
 out_unlock:
 	spin_unlock(&mm->page_table_lock);
 
diff --git a/mm/migrate.c b/mm/migrate.c
index a26bccd44ccb..7bd90d3b16bb 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1713,12 +1713,12 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm,
 		unlock_page(new_page);
 		put_page(new_page);		/* Free it */
 
-		unlock_page(page);
+		/* Retake the callers reference and putback on LRU */
+		get_page(page);
 		putback_lru_page(page);
-
-		count_vm_events(PGMIGRATE_FAIL, HPAGE_PMD_NR);
-		isolated = 0;
-		goto out;
+		mod_zone_page_state(page_zone(page),
+			 NR_ISOLATED_ANON + page_lru, -HPAGE_PMD_NR);
+		goto out_fail;
 	}
 
 	/*
@@ -1735,9 +1735,9 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm,
 	entry = maybe_pmd_mkwrite(pmd_mkdirty(entry), vma);
 	entry = pmd_mkhuge(entry);
 
-	page_add_new_anon_rmap(new_page, vma, haddr);
-
+	pmdp_clear_flush(vma, haddr, pmd);
 	set_pmd_at(mm, haddr, pmd, entry);
+	page_add_new_anon_rmap(new_page, vma, haddr);
 	update_mmu_cache_pmd(vma, address, &entry);
 	page_remove_rmap(page);
 	/*
@@ -1756,7 +1756,6 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm,
 	count_vm_events(PGMIGRATE_SUCCESS, HPAGE_PMD_NR);
 	count_vm_numa_events(NUMA_PAGE_MIGRATE, HPAGE_PMD_NR);
 
-out:
 	mod_zone_page_state(page_zone(page),
 			NR_ISOLATED_ANON + page_lru,
 			-HPAGE_PMD_NR);
@@ -1765,6 +1764,10 @@ out:
 out_fail:
 	count_vm_events(PGMIGRATE_FAIL, HPAGE_PMD_NR);
 out_dropref:
+	entry = pmd_mknonnuma(entry);
+	set_pmd_at(mm, haddr, pmd, entry);
+	update_mmu_cache_pmd(vma, address, &entry);
+
 	unlock_page(page);
 	put_page(page);
 	return 0;
-- 
cgit 


From afcae2655b0ab67e65f161b1bb214efcfa1db415 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:28:47 +0100
Subject: mm: Account for a THP NUMA hinting update as one PTE update

A THP PMD update is accounted for as 512 pages updated in vmstat.  This is
large difference when estimating the cost of automatic NUMA balancing and
can be misleading when comparing results that had collapsed versus split
THP. This patch addresses the accounting issue.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-10-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 mm/mprotect.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/mprotect.c b/mm/mprotect.c
index 94722a4d6b43..2bbb648ea73f 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -145,7 +145,7 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
 				split_huge_page_pmd(vma, addr, pmd);
 			else if (change_huge_pmd(vma, pmd, addr, newprot,
 						 prot_numa)) {
-				pages += HPAGE_PMD_NR;
+				pages++;
 				continue;
 			}
 			/* fall through */
-- 
cgit 


From e920e14ca29b0b2a981cfc90e4e20edd6f078d19 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:28:48 +0100
Subject: mm: Do not flush TLB during protection change if !pte_present &&
 !migration_entry

NUMA PTE scanning is expensive both in terms of the scanning itself and
the TLB flush if there are any updates. Currently non-present PTEs are
accounted for as an update and incurring a TLB flush where it is only
necessary for anonymous migration entries. This patch addresses the
problem and should reduce TLB flushes.

Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-11-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 mm/mprotect.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mm/mprotect.c b/mm/mprotect.c
index 2bbb648ea73f..7bdbd4b0f6d9 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -101,8 +101,9 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 				make_migration_entry_read(&entry);
 				set_pte_at(mm, addr, pte,
 					swp_entry_to_pte(entry));
+
+				pages++;
 			}
-			pages++;
 		}
 	} while (pte++, addr += PAGE_SIZE, addr != end);
 	arch_leave_lazy_mmu_mode();
-- 
cgit 


From f123d74abf91574837d14e5ea58f6a779a387bf5 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:28:49 +0100
Subject: mm: Only flush TLBs if a transhuge PMD is modified for NUMA pte
 scanning

NUMA PTE scanning is expensive both in terms of the scanning itself and
the TLB flush if there are any updates. The TLB flush is avoided if no
PTEs are updated but there is a bug where transhuge PMDs are considered
to be updated even if they were already pmd_numa. This patch addresses
the problem and TLB flushes should be reduced.

Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-12-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 mm/huge_memory.c | 19 ++++++++++++++++---
 mm/mprotect.c    | 14 ++++++++++----
 2 files changed, 26 insertions(+), 7 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index d4928769680f..de8d5cfc2bf2 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1458,6 +1458,12 @@ out:
 	return ret;
 }
 
+/*
+ * Returns
+ *  - 0 if PMD could not be locked
+ *  - 1 if PMD was locked but protections unchange and TLB flush unnecessary
+ *  - HPAGE_PMD_NR is protections changed and TLB flush necessary
+ */
 int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
 		unsigned long addr, pgprot_t newprot, int prot_numa)
 {
@@ -1466,9 +1472,11 @@ int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
 
 	if (__pmd_trans_huge_lock(pmd, vma) == 1) {
 		pmd_t entry;
-		entry = pmdp_get_and_clear(mm, addr, pmd);
+		ret = 1;
 		if (!prot_numa) {
+			entry = pmdp_get_and_clear(mm, addr, pmd);
 			entry = pmd_modify(entry, newprot);
+			ret = HPAGE_PMD_NR;
 			BUG_ON(pmd_write(entry));
 		} else {
 			struct page *page = pmd_page(*pmd);
@@ -1476,12 +1484,17 @@ int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
 			/* only check non-shared pages */
 			if (page_mapcount(page) == 1 &&
 			    !pmd_numa(*pmd)) {
+				entry = pmdp_get_and_clear(mm, addr, pmd);
 				entry = pmd_mknuma(entry);
+				ret = HPAGE_PMD_NR;
 			}
 		}
-		set_pmd_at(mm, addr, pmd, entry);
+
+		/* Set PMD if cleared earlier */
+		if (ret == HPAGE_PMD_NR)
+			set_pmd_at(mm, addr, pmd, entry);
+
 		spin_unlock(&vma->vm_mm->page_table_lock);
-		ret = 1;
 	}
 
 	return ret;
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 7bdbd4b0f6d9..2da33dca6134 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -144,10 +144,16 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
 		if (pmd_trans_huge(*pmd)) {
 			if (next - addr != HPAGE_PMD_SIZE)
 				split_huge_page_pmd(vma, addr, pmd);
-			else if (change_huge_pmd(vma, pmd, addr, newprot,
-						 prot_numa)) {
-				pages++;
-				continue;
+			else {
+				int nr_ptes = change_huge_pmd(vma, pmd, addr,
+						newprot, prot_numa);
+
+				if (nr_ptes) {
+					if (nr_ptes == HPAGE_PMD_NR)
+						pages++;
+
+					continue;
+				}
 			}
 			/* fall through */
 		}
-- 
cgit 


From a1a46184e34cfd0764f06a54870defa052b0a094 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:28:50 +0100
Subject: mm: numa: Do not migrate or account for hinting faults on the zero
 page

The zero page is not replicated between nodes and is often shared between
processes. The data is read-only and likely to be cached in local CPUs
if heavily accessed meaning that the remote memory access cost is less
of a concern. This patch prevents trapping faults on the zero pages. For
tasks using the zero page this will reduce the number of PTE updates,
TLB flushes and hinting faults.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
[ Correct use of is_huge_zero_page]
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-13-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 mm/huge_memory.c | 10 +++++++++-
 mm/memory.c      |  1 +
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index de8d5cfc2bf2..8677dbf31c2e 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1291,6 +1291,7 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		goto out_unlock;
 
 	page = pmd_page(pmd);
+	BUG_ON(is_huge_zero_page(page));
 	page_nid = page_to_nid(page);
 	count_vm_numa_event(NUMA_HINT_FAULTS);
 	if (page_nid == this_nid)
@@ -1481,8 +1482,15 @@ int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
 		} else {
 			struct page *page = pmd_page(*pmd);
 
-			/* only check non-shared pages */
+			/*
+			 * Only check non-shared pages. Do not trap faults
+			 * against the zero page. The read-only data is likely
+			 * to be read-cached on the local CPU cache and it is
+			 * less useful to know about local vs remote hits on
+			 * the zero page.
+			 */
 			if (page_mapcount(page) == 1 &&
+			    !is_huge_zero_page(page) &&
 			    !pmd_numa(*pmd)) {
 				entry = pmdp_get_and_clear(mm, addr, pmd);
 				entry = pmd_mknuma(entry);
diff --git a/mm/memory.c b/mm/memory.c
index 42ae82ee04c1..ed51f15136ee 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3564,6 +3564,7 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		pte_unmap_unlock(ptep, ptl);
 		return 0;
 	}
+	BUG_ON(is_zero_pfn(page_to_pfn(page)));
 
 	page_nid = page_to_nid(page);
 	target_nid = numa_migrate_prep(page, vma, addr, page_nid);
-- 
cgit 


From 19a78d110d7a8045aeb90d38ee8fe9743ce88c2d Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 7 Oct 2013 11:28:51 +0100
Subject: sched/numa: Mitigate chance that same task always updates PTEs

With a trace_printk("working\n"); right after the cmpxchg in
task_numa_work() we can see that of a 4 thread process, its always the
same task winning the race and doing the protection change.

This is a problem since the task doing the protection change has a
penalty for taking faults -- it is busy when marking the PTEs. If its
always the same task the ->numa_faults[] get severely skewed.

Avoid this by delaying the task doing the protection change such that
it is unlikely to win the privilege again.

Before:

root@interlagos:~# grep "thread 0/.*working" /debug/tracing/trace | tail -15
      thread 0/0-3232  [022] ....   212.787402: task_numa_work: working
      thread 0/0-3232  [022] ....   212.888473: task_numa_work: working
      thread 0/0-3232  [022] ....   212.989538: task_numa_work: working
      thread 0/0-3232  [022] ....   213.090602: task_numa_work: working
      thread 0/0-3232  [022] ....   213.191667: task_numa_work: working
      thread 0/0-3232  [022] ....   213.292734: task_numa_work: working
      thread 0/0-3232  [022] ....   213.393804: task_numa_work: working
      thread 0/0-3232  [022] ....   213.494869: task_numa_work: working
      thread 0/0-3232  [022] ....   213.596937: task_numa_work: working
      thread 0/0-3232  [022] ....   213.699000: task_numa_work: working
      thread 0/0-3232  [022] ....   213.801067: task_numa_work: working
      thread 0/0-3232  [022] ....   213.903155: task_numa_work: working
      thread 0/0-3232  [022] ....   214.005201: task_numa_work: working
      thread 0/0-3232  [022] ....   214.107266: task_numa_work: working
      thread 0/0-3232  [022] ....   214.209342: task_numa_work: working

After:

root@interlagos:~# grep "thread 0/.*working" /debug/tracing/trace | tail -15
      thread 0/0-3253  [005] ....   136.865051: task_numa_work: working
      thread 0/2-3255  [026] ....   136.965134: task_numa_work: working
      thread 0/3-3256  [024] ....   137.065217: task_numa_work: working
      thread 0/3-3256  [024] ....   137.165302: task_numa_work: working
      thread 0/3-3256  [024] ....   137.265382: task_numa_work: working
      thread 0/0-3253  [004] ....   137.366465: task_numa_work: working
      thread 0/2-3255  [026] ....   137.466549: task_numa_work: working
      thread 0/0-3253  [004] ....   137.566629: task_numa_work: working
      thread 0/0-3253  [004] ....   137.666711: task_numa_work: working
      thread 0/1-3254  [028] ....   137.766799: task_numa_work: working
      thread 0/0-3253  [004] ....   137.866876: task_numa_work: working
      thread 0/2-3255  [026] ....   137.966960: task_numa_work: working
      thread 0/1-3254  [028] ....   138.067041: task_numa_work: working
      thread 0/2-3255  [026] ....   138.167123: task_numa_work: working
      thread 0/3-3256  [024] ....   138.267207: task_numa_work: working

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1381141781-10992-14-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 817cd7bfd517..573d815e80af 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -945,6 +945,12 @@ void task_numa_work(struct callback_head *work)
 	if (cmpxchg(&mm->numa_next_scan, migrate, next_scan) != migrate)
 		return;
 
+	/*
+	 * Delay this task enough that another task of this mm will likely win
+	 * the next time around.
+	 */
+	p->node_stamp += 2 * TICK_NSEC;
+
 	/*
 	 * Do not set pte_numa if the current running node is rate-limited.
 	 * This loses statistics on the fault but if we are unwilling to
@@ -1026,7 +1032,7 @@ void task_tick_numa(struct rq *rq, struct task_struct *curr)
 	if (now - curr->node_stamp > period) {
 		if (!curr->node_stamp)
 			curr->numa_scan_period = sysctl_numa_balancing_scan_period_min;
-		curr->node_stamp = now;
+		curr->node_stamp += period;
 
 		if (!time_before(jiffies, curr->mm->numa_next_scan)) {
 			init_task_work(work, task_numa_work); /* TODO: move this into sched_fork() */
-- 
cgit 


From 9e645ab6d089f5822479a833c6977c785bcfffe3 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 7 Oct 2013 11:28:52 +0100
Subject: sched/numa: Continue PTE scanning even if migrate rate limited

Avoiding marking PTEs pte_numa because a particular NUMA node is migrate rate
limited sees like a bad idea. Even if this node can't migrate anymore other
nodes might and we want up-to-date information to do balance decisions.
We already rate limit the actual migrations, this should leave enough
bandwidth to allow the non-migrating scanning. I think its important we
keep up-to-date information if we're going to do placement based on it.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1381141781-10992-15-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 573d815e80af..464207fc9eef 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -951,14 +951,6 @@ void task_numa_work(struct callback_head *work)
 	 */
 	p->node_stamp += 2 * TICK_NSEC;
 
-	/*
-	 * Do not set pte_numa if the current running node is rate-limited.
-	 * This loses statistics on the fault but if we are unwilling to
-	 * migrate to this node, it is less likely we can do useful work
-	 */
-	if (migrate_ratelimited(numa_node_id()))
-		return;
-
 	start = mm->numa_scan_offset;
 	pages = sysctl_numa_balancing_scan_size;
 	pages <<= 20 - PAGE_SHIFT; /* MB in pages */
-- 
cgit 


From b726b7dfb400c937546fa91cf8523dcb1aa2fc6e Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:28:53 +0100
Subject: Revert "mm: sched: numa: Delay PTE scanning until a task is scheduled
 on a new node"

PTE scanning and NUMA hinting fault handling is expensive so commit
5bca2303 ("mm: sched: numa: Delay PTE scanning until a task is scheduled
on a new node") deferred the PTE scan until a task had been scheduled on
another node. The problem is that in the purely shared memory case that
this may never happen and no NUMA hinting fault information will be
captured. We are not ruling out the possibility that something better
can be done here but for now, this patch needs to be reverted and depend
entirely on the scan_delay to avoid punishing short-lived processes.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-16-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/mm_types.h | 10 ----------
 kernel/fork.c            |  3 ---
 kernel/sched/fair.c      | 18 ------------------
 kernel/sched/features.h  |  4 +---
 4 files changed, 1 insertion(+), 34 deletions(-)

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index d9851eeb6e1d..b7adf1d4310c 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -428,20 +428,10 @@ struct mm_struct {
 
 	/* numa_scan_seq prevents two threads setting pte_numa */
 	int numa_scan_seq;
-
-	/*
-	 * The first node a task was scheduled on. If a task runs on
-	 * a different node than Make PTE Scan Go Now.
-	 */
-	int first_nid;
 #endif
 	struct uprobes_state uprobes_state;
 };
 
-/* first nid will either be a valid NID or one of these values */
-#define NUMA_PTE_SCAN_INIT	-1
-#define NUMA_PTE_SCAN_ACTIVE	-2
-
 static inline void mm_init_cpumask(struct mm_struct *mm)
 {
 #ifdef CONFIG_CPUMASK_OFFSTACK
diff --git a/kernel/fork.c b/kernel/fork.c
index 086fe73ad6bd..7192d91b5415 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -816,9 +816,6 @@ struct mm_struct *dup_mm(struct task_struct *tsk)
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 	mm->pmd_huge_pte = NULL;
-#endif
-#ifdef CONFIG_NUMA_BALANCING
-	mm->first_nid = NUMA_PTE_SCAN_INIT;
 #endif
 	if (!mm_init(mm, tsk))
 		goto fail_nomem;
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 464207fc9eef..49b11faa2961 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -900,24 +900,6 @@ void task_numa_work(struct callback_head *work)
 	if (p->flags & PF_EXITING)
 		return;
 
-	/*
-	 * We do not care about task placement until a task runs on a node
-	 * other than the first one used by the address space. This is
-	 * largely because migrations are driven by what CPU the task
-	 * is running on. If it's never scheduled on another node, it'll
-	 * not migrate so why bother trapping the fault.
-	 */
-	if (mm->first_nid == NUMA_PTE_SCAN_INIT)
-		mm->first_nid = numa_node_id();
-	if (mm->first_nid != NUMA_PTE_SCAN_ACTIVE) {
-		/* Are we running on a new node yet? */
-		if (numa_node_id() == mm->first_nid &&
-		    !sched_feat_numa(NUMA_FORCE))
-			return;
-
-		mm->first_nid = NUMA_PTE_SCAN_ACTIVE;
-	}
-
 	/*
 	 * Reset the scan period if enough time has gone by. Objective is that
 	 * scanning will be reduced if pages are properly placed. As tasks
diff --git a/kernel/sched/features.h b/kernel/sched/features.h
index 99399f8e4799..cba5c616a157 100644
--- a/kernel/sched/features.h
+++ b/kernel/sched/features.h
@@ -63,10 +63,8 @@ SCHED_FEAT(LB_MIN, false)
 /*
  * Apply the automatic NUMA scheduling policy. Enabled automatically
  * at runtime if running on a NUMA machine. Can be controlled via
- * numa_balancing=. Allow PTE scanning to be forced on UMA machines
- * for debugging the core machinery.
+ * numa_balancing=
  */
 #ifdef CONFIG_NUMA_BALANCING
 SCHED_FEAT(NUMA,	false)
-SCHED_FEAT(NUMA_FORCE,	false)
 #endif
-- 
cgit 


From 7e8d16b6cbccb2f5da579f5085479fb82ba851b8 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:28:54 +0100
Subject: sched/numa: Initialise numa_next_scan properly

Scan delay logic and resets are currently initialised to start scanning
immediately instead of delaying properly. Initialise them properly at
fork time and catch when a new mm has been allocated.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-17-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/core.c | 4 ++--
 kernel/sched/fair.c | 7 +++++++
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index f575d5bd7e7a..aee7e4dcbbf3 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1624,8 +1624,8 @@ static void __sched_fork(struct task_struct *p)
 
 #ifdef CONFIG_NUMA_BALANCING
 	if (p->mm && atomic_read(&p->mm->mm_users) == 1) {
-		p->mm->numa_next_scan = jiffies;
-		p->mm->numa_next_reset = jiffies;
+		p->mm->numa_next_scan = jiffies + msecs_to_jiffies(sysctl_numa_balancing_scan_delay);
+		p->mm->numa_next_reset = jiffies + msecs_to_jiffies(sysctl_numa_balancing_scan_period_reset);
 		p->mm->numa_scan_seq = 0;
 	}
 
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 49b11faa2961..0966f0c16f1b 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -900,6 +900,13 @@ void task_numa_work(struct callback_head *work)
 	if (p->flags & PF_EXITING)
 		return;
 
+	if (!mm->numa_next_reset || !mm->numa_next_scan) {
+		mm->numa_next_scan = now +
+			msecs_to_jiffies(sysctl_numa_balancing_scan_delay);
+		mm->numa_next_reset = now +
+			msecs_to_jiffies(sysctl_numa_balancing_scan_period_reset);
+	}
+
 	/*
 	 * Reset the scan period if enough time has gone by. Objective is that
 	 * scanning will be reduced if pages are properly placed. As tasks
-- 
cgit 


From 598f0ec0bc996e90a806ee9564af919ea5aad401 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:28:55 +0100
Subject: sched/numa: Set the scan rate proportional to the memory usage of the
 task being scanned

The NUMA PTE scan rate is controlled with a combination of the
numa_balancing_scan_period_min, numa_balancing_scan_period_max and
numa_balancing_scan_size. This scan rate is independent of the size
of the task and as an aside it is further complicated by the fact that
numa_balancing_scan_size controls how many pages are marked pte_numa and
not how much virtual memory is scanned.

In combination, it is almost impossible to meaningfully tune the min and
max scan periods and reasoning about performance is complex when the time
to complete a full scan is is partially a function of the tasks memory
size. This patch alters the semantic of the min and max tunables to be
about tuning the length time it takes to complete a scan of a tasks occupied
virtual address space. Conceptually this is a lot easier to understand. There
is a "sanity" check to ensure the scan rate is never extremely fast based on
the amount of virtual memory that should be scanned in a second. The default
of 2.5G seems arbitrary but it is to have the maximum scan rate after the
patch roughly match the maximum scan rate before the patch was applied.

On a similar note, numa_scan_period is in milliseconds and not
jiffies. Properly placed pages slow the scanning rate but adding 10 jiffies
to numa_scan_period means that the rate scanning slows depends on HZ which
is confusing. Get rid of the jiffies_to_msec conversion and treat it as ms.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-18-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 Documentation/sysctl/kernel.txt | 11 +++---
 include/linux/sched.h           |  1 +
 kernel/sched/fair.c             | 88 +++++++++++++++++++++++++++++++++++------
 3 files changed, 83 insertions(+), 17 deletions(-)

diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index 1428c6659254..8cd7e5fc79da 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -403,15 +403,16 @@ workload pattern changes and minimises performance impact due to remote
 memory accesses. These sysctls control the thresholds for scan delays and
 the number of pages scanned.
 
-numa_balancing_scan_period_min_ms is the minimum delay in milliseconds
-between scans. It effectively controls the maximum scanning rate for
-each task.
+numa_balancing_scan_period_min_ms is the minimum time in milliseconds to
+scan a tasks virtual memory. It effectively controls the maximum scanning
+rate for each task.
 
 numa_balancing_scan_delay_ms is the starting "scan delay" used for a task
 when it initially forks.
 
-numa_balancing_scan_period_max_ms is the maximum delay between scans. It
-effectively controls the minimum scanning rate for each task.
+numa_balancing_scan_period_max_ms is the maximum time in milliseconds to
+scan a tasks virtual memory. It effectively controls the minimum scanning
+rate for each task.
 
 numa_balancing_scan_size_mb is how many megabytes worth of pages are
 scanned for a given scan.
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 2ac5285db434..fdcb4c855072 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1339,6 +1339,7 @@ struct task_struct {
 	int numa_scan_seq;
 	int numa_migrate_seq;
 	unsigned int numa_scan_period;
+	unsigned int numa_scan_period_max;
 	u64 node_stamp;			/* migration stamp  */
 	struct callback_head numa_work;
 #endif /* CONFIG_NUMA_BALANCING */
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 0966f0c16f1b..e08d757720de 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -818,11 +818,13 @@ update_stats_curr_start(struct cfs_rq *cfs_rq, struct sched_entity *se)
 
 #ifdef CONFIG_NUMA_BALANCING
 /*
- * numa task sample period in ms
+ * Approximate time to scan a full NUMA task in ms. The task scan period is
+ * calculated based on the tasks virtual memory size and
+ * numa_balancing_scan_size.
  */
-unsigned int sysctl_numa_balancing_scan_period_min = 100;
-unsigned int sysctl_numa_balancing_scan_period_max = 100*50;
-unsigned int sysctl_numa_balancing_scan_period_reset = 100*600;
+unsigned int sysctl_numa_balancing_scan_period_min = 1000;
+unsigned int sysctl_numa_balancing_scan_period_max = 60000;
+unsigned int sysctl_numa_balancing_scan_period_reset = 60000;
 
 /* Portion of address space to scan in MB */
 unsigned int sysctl_numa_balancing_scan_size = 256;
@@ -830,6 +832,51 @@ unsigned int sysctl_numa_balancing_scan_size = 256;
 /* Scan @scan_size MB every @scan_period after an initial @scan_delay in ms */
 unsigned int sysctl_numa_balancing_scan_delay = 1000;
 
+static unsigned int task_nr_scan_windows(struct task_struct *p)
+{
+	unsigned long rss = 0;
+	unsigned long nr_scan_pages;
+
+	/*
+	 * Calculations based on RSS as non-present and empty pages are skipped
+	 * by the PTE scanner and NUMA hinting faults should be trapped based
+	 * on resident pages
+	 */
+	nr_scan_pages = sysctl_numa_balancing_scan_size << (20 - PAGE_SHIFT);
+	rss = get_mm_rss(p->mm);
+	if (!rss)
+		rss = nr_scan_pages;
+
+	rss = round_up(rss, nr_scan_pages);
+	return rss / nr_scan_pages;
+}
+
+/* For sanitys sake, never scan more PTEs than MAX_SCAN_WINDOW MB/sec. */
+#define MAX_SCAN_WINDOW 2560
+
+static unsigned int task_scan_min(struct task_struct *p)
+{
+	unsigned int scan, floor;
+	unsigned int windows = 1;
+
+	if (sysctl_numa_balancing_scan_size < MAX_SCAN_WINDOW)
+		windows = MAX_SCAN_WINDOW / sysctl_numa_balancing_scan_size;
+	floor = 1000 / windows;
+
+	scan = sysctl_numa_balancing_scan_period_min / task_nr_scan_windows(p);
+	return max_t(unsigned int, floor, scan);
+}
+
+static unsigned int task_scan_max(struct task_struct *p)
+{
+	unsigned int smin = task_scan_min(p);
+	unsigned int smax;
+
+	/* Watch for min being lower than max due to floor calculations */
+	smax = sysctl_numa_balancing_scan_period_max / task_nr_scan_windows(p);
+	return max(smin, smax);
+}
+
 static void task_numa_placement(struct task_struct *p)
 {
 	int seq;
@@ -840,6 +887,7 @@ static void task_numa_placement(struct task_struct *p)
 	if (p->numa_scan_seq == seq)
 		return;
 	p->numa_scan_seq = seq;
+	p->numa_scan_period_max = task_scan_max(p);
 
 	/* FIXME: Scheduling placement policy hints go here */
 }
@@ -860,9 +908,14 @@ void task_numa_fault(int node, int pages, bool migrated)
 	 * If pages are properly placed (did not migrate) then scan slower.
 	 * This is reset periodically in case of phase changes
 	 */
-        if (!migrated)
-		p->numa_scan_period = min(sysctl_numa_balancing_scan_period_max,
-			p->numa_scan_period + jiffies_to_msecs(10));
+	if (!migrated) {
+		/* Initialise if necessary */
+		if (!p->numa_scan_period_max)
+			p->numa_scan_period_max = task_scan_max(p);
+
+		p->numa_scan_period = min(p->numa_scan_period_max,
+			p->numa_scan_period + 10);
+	}
 
 	task_numa_placement(p);
 }
@@ -884,6 +937,7 @@ void task_numa_work(struct callback_head *work)
 	struct mm_struct *mm = p->mm;
 	struct vm_area_struct *vma;
 	unsigned long start, end;
+	unsigned long nr_pte_updates = 0;
 	long pages;
 
 	WARN_ON_ONCE(p != container_of(work, struct task_struct, numa_work));
@@ -915,7 +969,7 @@ void task_numa_work(struct callback_head *work)
 	 */
 	migrate = mm->numa_next_reset;
 	if (time_after(now, migrate)) {
-		p->numa_scan_period = sysctl_numa_balancing_scan_period_min;
+		p->numa_scan_period = task_scan_min(p);
 		next_scan = now + msecs_to_jiffies(sysctl_numa_balancing_scan_period_reset);
 		xchg(&mm->numa_next_reset, next_scan);
 	}
@@ -927,8 +981,10 @@ void task_numa_work(struct callback_head *work)
 	if (time_before(now, migrate))
 		return;
 
-	if (p->numa_scan_period == 0)
-		p->numa_scan_period = sysctl_numa_balancing_scan_period_min;
+	if (p->numa_scan_period == 0) {
+		p->numa_scan_period_max = task_scan_max(p);
+		p->numa_scan_period = task_scan_min(p);
+	}
 
 	next_scan = now + msecs_to_jiffies(p->numa_scan_period);
 	if (cmpxchg(&mm->numa_next_scan, migrate, next_scan) != migrate)
@@ -965,7 +1021,15 @@ void task_numa_work(struct callback_head *work)
 			start = max(start, vma->vm_start);
 			end = ALIGN(start + (pages << PAGE_SHIFT), HPAGE_SIZE);
 			end = min(end, vma->vm_end);
-			pages -= change_prot_numa(vma, start, end);
+			nr_pte_updates += change_prot_numa(vma, start, end);
+
+			/*
+			 * Scan sysctl_numa_balancing_scan_size but ensure that
+			 * at least one PTE is updated so that unused virtual
+			 * address space is quickly skipped.
+			 */
+			if (nr_pte_updates)
+				pages -= (end - start) >> PAGE_SHIFT;
 
 			start = end;
 			if (pages <= 0)
@@ -1012,7 +1076,7 @@ void task_tick_numa(struct rq *rq, struct task_struct *curr)
 
 	if (now - curr->node_stamp > period) {
 		if (!curr->node_stamp)
-			curr->numa_scan_period = sysctl_numa_balancing_scan_period_min;
+			curr->numa_scan_period = task_scan_min(curr);
 		curr->node_stamp += period;
 
 		if (!time_before(jiffies, curr->mm->numa_next_scan)) {
-- 
cgit 


From f307cd1a32fab53012b01749a1f5ba10b0a7243f Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:28:56 +0100
Subject: sched/numa: Slow scan rate if no NUMA hinting faults are being
 recorded

NUMA PTE scanning slows if a NUMA hinting fault was trapped and no page
was migrated. For long-lived but idle processes there may be no faults
but the scan rate will be high and just waste CPU. This patch will slow
the scan rate for processes that are not trapping faults.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-19-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index e08d757720de..c6c330245f7f 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1038,6 +1038,18 @@ void task_numa_work(struct callback_head *work)
 	}
 
 out:
+	/*
+	 * If the whole process was scanned without updates then no NUMA
+	 * hinting faults are being recorded and scan rate should be lower.
+	 */
+	if (mm->numa_scan_offset == 0 && !nr_pte_updates) {
+		p->numa_scan_period = min(p->numa_scan_period_max,
+			p->numa_scan_period << 1);
+
+		next_scan = now + msecs_to_jiffies(p->numa_scan_period);
+		mm->numa_next_scan = next_scan;
+	}
+
 	/*
 	 * It is possible to reach the end of the VMA list but the last few
 	 * VMAs are not guaranteed to the vma_migratable. If they are not, we
-- 
cgit 


From f809ca9a554dda49fb264c79e31c722e0b063ff8 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:28:57 +0100
Subject: sched/numa: Track NUMA hinting faults on per-node basis

This patch tracks what nodes numa hinting faults were incurred on.
This information is later used to schedule a task on the node storing
the pages most frequently faulted by the task.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-20-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/sched.h |  2 ++
 kernel/sched/core.c   |  3 +++
 kernel/sched/fair.c   | 11 ++++++++++-
 kernel/sched/sched.h  | 12 ++++++++++++
 4 files changed, 27 insertions(+), 1 deletion(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index fdcb4c855072..a810e95bca2b 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1342,6 +1342,8 @@ struct task_struct {
 	unsigned int numa_scan_period_max;
 	u64 node_stamp;			/* migration stamp  */
 	struct callback_head numa_work;
+
+	unsigned long *numa_faults;
 #endif /* CONFIG_NUMA_BALANCING */
 
 	struct rcu_head rcu;
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index aee7e4dcbbf3..6808d35fd7ed 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1634,6 +1634,7 @@ static void __sched_fork(struct task_struct *p)
 	p->numa_migrate_seq = p->mm ? p->mm->numa_scan_seq - 1 : 0;
 	p->numa_scan_period = sysctl_numa_balancing_scan_delay;
 	p->numa_work.next = &p->numa_work;
+	p->numa_faults = NULL;
 #endif /* CONFIG_NUMA_BALANCING */
 }
 
@@ -1892,6 +1893,8 @@ static void finish_task_switch(struct rq *rq, struct task_struct *prev)
 	if (mm)
 		mmdrop(mm);
 	if (unlikely(prev_state == TASK_DEAD)) {
+		task_numa_free(prev);
+
 		/*
 		 * Remove function-return probe instances associated with this
 		 * task and put them back on the free list.
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index c6c330245f7f..0bb3e0aa110b 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -902,7 +902,14 @@ void task_numa_fault(int node, int pages, bool migrated)
 	if (!numabalancing_enabled)
 		return;
 
-	/* FIXME: Allocate task-specific structure for placement policy here */
+	/* Allocate buffer to track faults on a per-node basis */
+	if (unlikely(!p->numa_faults)) {
+		int size = sizeof(*p->numa_faults) * nr_node_ids;
+
+		p->numa_faults = kzalloc(size, GFP_KERNEL|__GFP_NOWARN);
+		if (!p->numa_faults)
+			return;
+	}
 
 	/*
 	 * If pages are properly placed (did not migrate) then scan slower.
@@ -918,6 +925,8 @@ void task_numa_fault(int node, int pages, bool migrated)
 	}
 
 	task_numa_placement(p);
+
+	p->numa_faults[node] += pages;
 }
 
 static void reset_ptenuma_scan(struct task_struct *p)
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index e82484db7699..199099c7aa22 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -6,6 +6,7 @@
 #include <linux/spinlock.h>
 #include <linux/stop_machine.h>
 #include <linux/tick.h>
+#include <linux/slab.h>
 
 #include "cpupri.h"
 #include "cpuacct.h"
@@ -555,6 +556,17 @@ static inline u64 rq_clock_task(struct rq *rq)
 	return rq->clock_task;
 }
 
+#ifdef CONFIG_NUMA_BALANCING
+static inline void task_numa_free(struct task_struct *p)
+{
+	kfree(p->numa_faults);
+}
+#else /* CONFIG_NUMA_BALANCING */
+static inline void task_numa_free(struct task_struct *p)
+{
+}
+#endif /* CONFIG_NUMA_BALANCING */
+
 #ifdef CONFIG_SMP
 
 #define rcu_dereference_check_sched_domain(p) \
-- 
cgit 


From 688b7585d16ab57a17aa4422a3b290b3a55fa679 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:28:58 +0100
Subject: sched/numa: Select a preferred node with the most numa hinting faults

This patch selects a preferred node for a task to run on based on the
NUMA hinting faults. This information is later used to migrate tasks
towards the node during balancing.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-21-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/sched.h |  1 +
 kernel/sched/core.c   |  1 +
 kernel/sched/fair.c   | 17 +++++++++++++++--
 3 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index a810e95bca2b..b1fc75e7187b 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1344,6 +1344,7 @@ struct task_struct {
 	struct callback_head numa_work;
 
 	unsigned long *numa_faults;
+	int numa_preferred_nid;
 #endif /* CONFIG_NUMA_BALANCING */
 
 	struct rcu_head rcu;
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 6808d35fd7ed..d15cd70f85b5 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1633,6 +1633,7 @@ static void __sched_fork(struct task_struct *p)
 	p->numa_scan_seq = p->mm ? p->mm->numa_scan_seq : 0;
 	p->numa_migrate_seq = p->mm ? p->mm->numa_scan_seq - 1 : 0;
 	p->numa_scan_period = sysctl_numa_balancing_scan_delay;
+	p->numa_preferred_nid = -1;
 	p->numa_work.next = &p->numa_work;
 	p->numa_faults = NULL;
 #endif /* CONFIG_NUMA_BALANCING */
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 0bb3e0aa110b..9efd34f63e81 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -879,7 +879,8 @@ static unsigned int task_scan_max(struct task_struct *p)
 
 static void task_numa_placement(struct task_struct *p)
 {
-	int seq;
+	int seq, nid, max_nid = -1;
+	unsigned long max_faults = 0;
 
 	if (!p->mm)	/* for example, ksmd faulting in a user's mm */
 		return;
@@ -889,7 +890,19 @@ static void task_numa_placement(struct task_struct *p)
 	p->numa_scan_seq = seq;
 	p->numa_scan_period_max = task_scan_max(p);
 
-	/* FIXME: Scheduling placement policy hints go here */
+	/* Find the node with the highest number of faults */
+	for_each_online_node(nid) {
+		unsigned long faults = p->numa_faults[nid];
+		p->numa_faults[nid] >>= 1;
+		if (faults > max_faults) {
+			max_faults = faults;
+			max_nid = nid;
+		}
+	}
+
+	/* Update the tasks preferred node if necessary */
+	if (max_faults && max_nid != p->numa_preferred_nid)
+		p->numa_preferred_nid = max_nid;
 }
 
 /*
-- 
cgit 


From 745d61476ddb737aad3495fa6d9a8f8c2ee59f86 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:28:59 +0100
Subject: sched/numa: Update NUMA hinting faults once per scan

NUMA hinting fault counts and placement decisions are both recorded in the
same array which distorts the samples in an unpredictable fashion. The values
linearly accumulate during the scan and then decay creating a sawtooth-like
pattern in the per-node counts. It also means that placement decisions are
time sensitive. At best it means that it is very difficult to state that
the buffer holds a decaying average of past faulting behaviour. At worst,
it can confuse the load balancer if it sees one node with an artifically high
count due to very recent faulting activity and may create a bouncing effect.

This patch adds a second array. numa_faults stores the historical data
which is used for placement decisions. numa_faults_buffer holds the
fault activity during the current scan window. When the scan completes,
numa_faults decays and the values from numa_faults_buffer are copied
across.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-22-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/sched.h | 13 +++++++++++++
 kernel/sched/core.c   |  1 +
 kernel/sched/fair.c   | 16 +++++++++++++---
 3 files changed, 27 insertions(+), 3 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index b1fc75e7187b..a463bc3ad437 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1343,7 +1343,20 @@ struct task_struct {
 	u64 node_stamp;			/* migration stamp  */
 	struct callback_head numa_work;
 
+	/*
+	 * Exponential decaying average of faults on a per-node basis.
+	 * Scheduling placement decisions are made based on the these counts.
+	 * The values remain static for the duration of a PTE scan
+	 */
 	unsigned long *numa_faults;
+
+	/*
+	 * numa_faults_buffer records faults per node during the current
+	 * scan window. When the scan completes, the counts in numa_faults
+	 * decay and these values are copied.
+	 */
+	unsigned long *numa_faults_buffer;
+
 	int numa_preferred_nid;
 #endif /* CONFIG_NUMA_BALANCING */
 
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index d15cd70f85b5..064a0af44540 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1636,6 +1636,7 @@ static void __sched_fork(struct task_struct *p)
 	p->numa_preferred_nid = -1;
 	p->numa_work.next = &p->numa_work;
 	p->numa_faults = NULL;
+	p->numa_faults_buffer = NULL;
 #endif /* CONFIG_NUMA_BALANCING */
 }
 
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 9efd34f63e81..3abc651bc38a 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -892,8 +892,14 @@ static void task_numa_placement(struct task_struct *p)
 
 	/* Find the node with the highest number of faults */
 	for_each_online_node(nid) {
-		unsigned long faults = p->numa_faults[nid];
+		unsigned long faults;
+
+		/* Decay existing window and copy faults since last scan */
 		p->numa_faults[nid] >>= 1;
+		p->numa_faults[nid] += p->numa_faults_buffer[nid];
+		p->numa_faults_buffer[nid] = 0;
+
+		faults = p->numa_faults[nid];
 		if (faults > max_faults) {
 			max_faults = faults;
 			max_nid = nid;
@@ -919,9 +925,13 @@ void task_numa_fault(int node, int pages, bool migrated)
 	if (unlikely(!p->numa_faults)) {
 		int size = sizeof(*p->numa_faults) * nr_node_ids;
 
-		p->numa_faults = kzalloc(size, GFP_KERNEL|__GFP_NOWARN);
+		/* numa_faults and numa_faults_buffer share the allocation */
+		p->numa_faults = kzalloc(size * 2, GFP_KERNEL|__GFP_NOWARN);
 		if (!p->numa_faults)
 			return;
+
+		BUG_ON(p->numa_faults_buffer);
+		p->numa_faults_buffer = p->numa_faults + nr_node_ids;
 	}
 
 	/*
@@ -939,7 +949,7 @@ void task_numa_fault(int node, int pages, bool migrated)
 
 	task_numa_placement(p);
 
-	p->numa_faults[node] += pages;
+	p->numa_faults_buffer[node] += pages;
 }
 
 static void reset_ptenuma_scan(struct task_struct *p)
-- 
cgit 


From 3a7053b3224f4a8b0e8184166190076593621617 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:00 +0100
Subject: sched/numa: Favour moving tasks towards the preferred node

This patch favours moving tasks towards NUMA node that recorded a higher
number of NUMA faults during active load balancing.  Ideally this is
self-reinforcing as the longer the task runs on that node, the more faults
it should incur causing task_numa_placement to keep the task running on that
node. In reality a big weakness is that the nodes CPUs can be overloaded
and it would be more efficient to queue tasks on an idle node and migrate
to the new node. This would require additional smarts in the balancer so
for now the balancer will simply prefer to place the task on the preferred
node for a PTE scans which is controlled by the numa_balancing_settle_count
sysctl. Once the settle_count number of scans has complete the schedule
is free to place the task on an alternative node if the load is imbalanced.

[srikar@linux.vnet.ibm.com: Fixed statistics]
Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
[ Tunable and use higher faults instead of preferred. ]
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-23-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 Documentation/sysctl/kernel.txt |  8 +++++-
 include/linux/sched.h           |  1 +
 kernel/sched/core.c             |  3 +-
 kernel/sched/fair.c             | 63 ++++++++++++++++++++++++++++++++++++++---
 kernel/sched/features.h         |  7 +++++
 kernel/sysctl.c                 |  7 +++++
 6 files changed, 83 insertions(+), 6 deletions(-)

diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index 8cd7e5fc79da..d48bca45b6f2 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -375,7 +375,8 @@ feature should be disabled. Otherwise, if the system overhead from the
 feature is too high then the rate the kernel samples for NUMA hinting
 faults may be controlled by the numa_balancing_scan_period_min_ms,
 numa_balancing_scan_delay_ms, numa_balancing_scan_period_reset,
-numa_balancing_scan_period_max_ms and numa_balancing_scan_size_mb sysctls.
+numa_balancing_scan_period_max_ms, numa_balancing_scan_size_mb and
+numa_balancing_settle_count sysctls.
 
 ==============================================================
 
@@ -420,6 +421,11 @@ scanned for a given scan.
 numa_balancing_scan_period_reset is a blunt instrument that controls how
 often a tasks scan delay is reset to detect sudden changes in task behaviour.
 
+numa_balancing_settle_count is how many scan periods must complete before
+the schedule balancer stops pushing the task towards a preferred node. This
+gives the scheduler a chance to place the task on an alternative node if the
+preferred node is overloaded.
+
 ==============================================================
 
 osrelease, ostype & version:
diff --git a/include/linux/sched.h b/include/linux/sched.h
index a463bc3ad437..aecdc5a18773 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -777,6 +777,7 @@ enum cpu_idle_type {
 #define SD_ASYM_PACKING		0x0800  /* Place busy groups earlier in the domain */
 #define SD_PREFER_SIBLING	0x1000	/* Prefer to place tasks in a sibling domain */
 #define SD_OVERLAP		0x2000	/* sched_domains of this level overlap */
+#define SD_NUMA			0x4000	/* cross-node balancing */
 
 extern int __weak arch_sd_sibiling_asym_packing(void);
 
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 064a0af44540..b7e6b6f9c5f6 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1631,7 +1631,7 @@ static void __sched_fork(struct task_struct *p)
 
 	p->node_stamp = 0ULL;
 	p->numa_scan_seq = p->mm ? p->mm->numa_scan_seq : 0;
-	p->numa_migrate_seq = p->mm ? p->mm->numa_scan_seq - 1 : 0;
+	p->numa_migrate_seq = 0;
 	p->numa_scan_period = sysctl_numa_balancing_scan_delay;
 	p->numa_preferred_nid = -1;
 	p->numa_work.next = &p->numa_work;
@@ -5656,6 +5656,7 @@ sd_numa_init(struct sched_domain_topology_level *tl, int cpu)
 					| 0*SD_SHARE_PKG_RESOURCES
 					| 1*SD_SERIALIZE
 					| 0*SD_PREFER_SIBLING
+					| 1*SD_NUMA
 					| sd_local_flags(level)
 					,
 		.last_balance		= jiffies,
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 3abc651bc38a..6ffddca687fe 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -877,6 +877,15 @@ static unsigned int task_scan_max(struct task_struct *p)
 	return max(smin, smax);
 }
 
+/*
+ * Once a preferred node is selected the scheduler balancer will prefer moving
+ * a task to that node for sysctl_numa_balancing_settle_count number of PTE
+ * scans. This will give the process the chance to accumulate more faults on
+ * the preferred node but still allow the scheduler to move the task again if
+ * the nodes CPUs are overloaded.
+ */
+unsigned int sysctl_numa_balancing_settle_count __read_mostly = 3;
+
 static void task_numa_placement(struct task_struct *p)
 {
 	int seq, nid, max_nid = -1;
@@ -888,6 +897,7 @@ static void task_numa_placement(struct task_struct *p)
 	if (p->numa_scan_seq == seq)
 		return;
 	p->numa_scan_seq = seq;
+	p->numa_migrate_seq++;
 	p->numa_scan_period_max = task_scan_max(p);
 
 	/* Find the node with the highest number of faults */
@@ -907,8 +917,10 @@ static void task_numa_placement(struct task_struct *p)
 	}
 
 	/* Update the tasks preferred node if necessary */
-	if (max_faults && max_nid != p->numa_preferred_nid)
+	if (max_faults && max_nid != p->numa_preferred_nid) {
 		p->numa_preferred_nid = max_nid;
+		p->numa_migrate_seq = 0;
+	}
 }
 
 /*
@@ -4071,6 +4083,38 @@ task_hot(struct task_struct *p, u64 now, struct sched_domain *sd)
 	return delta < (s64)sysctl_sched_migration_cost;
 }
 
+#ifdef CONFIG_NUMA_BALANCING
+/* Returns true if the destination node has incurred more faults */
+static bool migrate_improves_locality(struct task_struct *p, struct lb_env *env)
+{
+	int src_nid, dst_nid;
+
+	if (!sched_feat(NUMA_FAVOUR_HIGHER) || !p->numa_faults ||
+	    !(env->sd->flags & SD_NUMA)) {
+		return false;
+	}
+
+	src_nid = cpu_to_node(env->src_cpu);
+	dst_nid = cpu_to_node(env->dst_cpu);
+
+	if (src_nid == dst_nid ||
+	    p->numa_migrate_seq >= sysctl_numa_balancing_settle_count)
+		return false;
+
+	if (dst_nid == p->numa_preferred_nid ||
+	    p->numa_faults[dst_nid] > p->numa_faults[src_nid])
+		return true;
+
+	return false;
+}
+#else
+static inline bool migrate_improves_locality(struct task_struct *p,
+					     struct lb_env *env)
+{
+	return false;
+}
+#endif
+
 /*
  * can_migrate_task - may task p from runqueue rq be migrated to this_cpu?
  */
@@ -4128,11 +4172,22 @@ int can_migrate_task(struct task_struct *p, struct lb_env *env)
 
 	/*
 	 * Aggressive migration if:
-	 * 1) task is cache cold, or
-	 * 2) too many balance attempts have failed.
+	 * 1) destination numa is preferred
+	 * 2) task is cache cold, or
+	 * 3) too many balance attempts have failed.
 	 */
-
 	tsk_cache_hot = task_hot(p, rq_clock_task(env->src_rq), env->sd);
+
+	if (migrate_improves_locality(p, env)) {
+#ifdef CONFIG_SCHEDSTATS
+		if (tsk_cache_hot) {
+			schedstat_inc(env->sd, lb_hot_gained[env->idle]);
+			schedstat_inc(p, se.statistics.nr_forced_migrations);
+		}
+#endif
+		return 1;
+	}
+
 	if (!tsk_cache_hot ||
 		env->sd->nr_balance_failed > env->sd->cache_nice_tries) {
 
diff --git a/kernel/sched/features.h b/kernel/sched/features.h
index cba5c616a157..d9278ce2c4b4 100644
--- a/kernel/sched/features.h
+++ b/kernel/sched/features.h
@@ -67,4 +67,11 @@ SCHED_FEAT(LB_MIN, false)
  */
 #ifdef CONFIG_NUMA_BALANCING
 SCHED_FEAT(NUMA,	false)
+
+/*
+ * NUMA_FAVOUR_HIGHER will favor moving tasks towards nodes where a
+ * higher number of hinting faults are recorded during active load
+ * balancing.
+ */
+SCHED_FEAT(NUMA_FAVOUR_HIGHER, true)
 #endif
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index b2f06f3c6a3f..42f616a74f40 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -391,6 +391,13 @@ static struct ctl_table kern_table[] = {
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec,
 	},
+	{
+		.procname       = "numa_balancing_settle_count",
+		.data           = &sysctl_numa_balancing_settle_count,
+		.maxlen         = sizeof(unsigned int),
+		.mode           = 0644,
+		.proc_handler   = proc_dointvec,
+	},
 #endif /* CONFIG_NUMA_BALANCING */
 #endif /* CONFIG_SCHED_DEBUG */
 	{
-- 
cgit 


From 7a0f308337d11fd5caa9f845c6d08cc5d6067988 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:01 +0100
Subject: sched/numa: Resist moving tasks towards nodes with fewer hinting
 faults

Just as "sched: Favour moving tasks towards the preferred node" favours
moving tasks towards nodes with a higher number of recorded NUMA hinting
faults, this patch resists moving tasks towards nodes with lower faults.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-24-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c     | 33 +++++++++++++++++++++++++++++++++
 kernel/sched/features.h |  8 ++++++++
 2 files changed, 41 insertions(+)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 6ffddca687fe..89431248d33d 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -4107,12 +4107,43 @@ static bool migrate_improves_locality(struct task_struct *p, struct lb_env *env)
 
 	return false;
 }
+
+
+static bool migrate_degrades_locality(struct task_struct *p, struct lb_env *env)
+{
+	int src_nid, dst_nid;
+
+	if (!sched_feat(NUMA) || !sched_feat(NUMA_RESIST_LOWER))
+		return false;
+
+	if (!p->numa_faults || !(env->sd->flags & SD_NUMA))
+		return false;
+
+	src_nid = cpu_to_node(env->src_cpu);
+	dst_nid = cpu_to_node(env->dst_cpu);
+
+	if (src_nid == dst_nid ||
+	    p->numa_migrate_seq >= sysctl_numa_balancing_settle_count)
+		return false;
+
+	if (p->numa_faults[dst_nid] < p->numa_faults[src_nid])
+		return true;
+
+	return false;
+}
+
 #else
 static inline bool migrate_improves_locality(struct task_struct *p,
 					     struct lb_env *env)
 {
 	return false;
 }
+
+static inline bool migrate_degrades_locality(struct task_struct *p,
+					     struct lb_env *env)
+{
+	return false;
+}
 #endif
 
 /*
@@ -4177,6 +4208,8 @@ int can_migrate_task(struct task_struct *p, struct lb_env *env)
 	 * 3) too many balance attempts have failed.
 	 */
 	tsk_cache_hot = task_hot(p, rq_clock_task(env->src_rq), env->sd);
+	if (!tsk_cache_hot)
+		tsk_cache_hot = migrate_degrades_locality(p, env);
 
 	if (migrate_improves_locality(p, env)) {
 #ifdef CONFIG_SCHEDSTATS
diff --git a/kernel/sched/features.h b/kernel/sched/features.h
index d9278ce2c4b4..5716929a2e3a 100644
--- a/kernel/sched/features.h
+++ b/kernel/sched/features.h
@@ -74,4 +74,12 @@ SCHED_FEAT(NUMA,	false)
  * balancing.
  */
 SCHED_FEAT(NUMA_FAVOUR_HIGHER, true)
+
+/*
+ * NUMA_RESIST_LOWER will resist moving tasks towards nodes where a
+ * lower number of hinting faults have been recorded. As this has
+ * the potential to prevent a task ever migrating to a new node
+ * due to CPU overload it is disabled by default.
+ */
+SCHED_FEAT(NUMA_RESIST_LOWER, false)
 #endif
-- 
cgit 


From e6628d5b0a2979f3e0ee6f7783ede5df50cb9ede Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:02 +0100
Subject: sched/numa: Reschedule task on preferred NUMA node once selected

A preferred node is selected based on the node the most NUMA hinting
faults was incurred on. There is no guarantee that the task is running
on that node at the time so this patch rescheules the task to run on
the most idle CPU of the selected node when selected. This avoids
waiting for the balancer to make a decision.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-25-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/core.c  | 19 +++++++++++++++++++
 kernel/sched/fair.c  | 46 +++++++++++++++++++++++++++++++++++++++++++++-
 kernel/sched/sched.h |  1 +
 3 files changed, 65 insertions(+), 1 deletion(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index b7e6b6f9c5f6..66b878e94554 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4348,6 +4348,25 @@ fail:
 	return ret;
 }
 
+#ifdef CONFIG_NUMA_BALANCING
+/* Migrate current task p to target_cpu */
+int migrate_task_to(struct task_struct *p, int target_cpu)
+{
+	struct migration_arg arg = { p, target_cpu };
+	int curr_cpu = task_cpu(p);
+
+	if (curr_cpu == target_cpu)
+		return 0;
+
+	if (!cpumask_test_cpu(target_cpu, tsk_cpus_allowed(p)))
+		return -EINVAL;
+
+	/* TODO: This is not properly updating schedstats */
+
+	return stop_one_cpu(curr_cpu, migration_cpu_stop, &arg);
+}
+#endif
+
 /*
  * migration_cpu_stop - this will be executed by a highprio stopper thread
  * and performs thread migration by bumping thread off CPU then
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 89431248d33d..8b15e9e1d1b8 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -886,6 +886,31 @@ static unsigned int task_scan_max(struct task_struct *p)
  */
 unsigned int sysctl_numa_balancing_settle_count __read_mostly = 3;
 
+static unsigned long weighted_cpuload(const int cpu);
+
+
+static int
+find_idlest_cpu_node(int this_cpu, int nid)
+{
+	unsigned long load, min_load = ULONG_MAX;
+	int i, idlest_cpu = this_cpu;
+
+	BUG_ON(cpu_to_node(this_cpu) == nid);
+
+	rcu_read_lock();
+	for_each_cpu(i, cpumask_of_node(nid)) {
+		load = weighted_cpuload(i);
+
+		if (load < min_load) {
+			min_load = load;
+			idlest_cpu = i;
+		}
+	}
+	rcu_read_unlock();
+
+	return idlest_cpu;
+}
+
 static void task_numa_placement(struct task_struct *p)
 {
 	int seq, nid, max_nid = -1;
@@ -916,10 +941,29 @@ static void task_numa_placement(struct task_struct *p)
 		}
 	}
 
-	/* Update the tasks preferred node if necessary */
+	/*
+	 * Record the preferred node as the node with the most faults,
+	 * requeue the task to be running on the idlest CPU on the
+	 * preferred node and reset the scanning rate to recheck
+	 * the working set placement.
+	 */
 	if (max_faults && max_nid != p->numa_preferred_nid) {
+		int preferred_cpu;
+
+		/*
+		 * If the task is not on the preferred node then find the most
+		 * idle CPU to migrate to.
+		 */
+		preferred_cpu = task_cpu(p);
+		if (cpu_to_node(preferred_cpu) != max_nid) {
+			preferred_cpu = find_idlest_cpu_node(preferred_cpu,
+							     max_nid);
+		}
+
+		/* Update the preferred nid and migrate task if possible */
 		p->numa_preferred_nid = max_nid;
 		p->numa_migrate_seq = 0;
+		migrate_task_to(p, preferred_cpu);
 	}
 }
 
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 199099c7aa22..66458c902d84 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -557,6 +557,7 @@ static inline u64 rq_clock_task(struct rq *rq)
 }
 
 #ifdef CONFIG_NUMA_BALANCING
+extern int migrate_task_to(struct task_struct *p, int cpu);
 static inline void task_numa_free(struct task_struct *p)
 {
 	kfree(p->numa_faults);
-- 
cgit 


From ac8e895bd260cb8bb19ade6a3abd44e7abe9a01d Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:03 +0100
Subject: sched/numa: Add infrastructure for split shared/private accounting of
 NUMA hinting faults

Ideally it would be possible to distinguish between NUMA hinting faults
that are private to a task and those that are shared.  This patch prepares
infrastructure for separately accounting shared and private faults by
allocating the necessary buffers and passing in relevant information. For
now, all faults are treated as private and detection will be introduced
later.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-26-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/sched.h |  5 +++--
 kernel/sched/fair.c   | 46 +++++++++++++++++++++++++++++++++++-----------
 mm/huge_memory.c      |  5 +++--
 mm/memory.c           |  8 ++++++--
 4 files changed, 47 insertions(+), 17 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index aecdc5a18773..d946195eec10 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1445,10 +1445,11 @@ struct task_struct {
 #define tsk_cpus_allowed(tsk) (&(tsk)->cpus_allowed)
 
 #ifdef CONFIG_NUMA_BALANCING
-extern void task_numa_fault(int node, int pages, bool migrated);
+extern void task_numa_fault(int last_node, int node, int pages, bool migrated);
 extern void set_numabalancing_state(bool enabled);
 #else
-static inline void task_numa_fault(int node, int pages, bool migrated)
+static inline void task_numa_fault(int last_node, int node, int pages,
+				   bool migrated)
 {
 }
 static inline void set_numabalancing_state(bool enabled)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 8b15e9e1d1b8..89eeb89fd99a 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -886,6 +886,20 @@ static unsigned int task_scan_max(struct task_struct *p)
  */
 unsigned int sysctl_numa_balancing_settle_count __read_mostly = 3;
 
+static inline int task_faults_idx(int nid, int priv)
+{
+	return 2 * nid + priv;
+}
+
+static inline unsigned long task_faults(struct task_struct *p, int nid)
+{
+	if (!p->numa_faults)
+		return 0;
+
+	return p->numa_faults[task_faults_idx(nid, 0)] +
+		p->numa_faults[task_faults_idx(nid, 1)];
+}
+
 static unsigned long weighted_cpuload(const int cpu);
 
 
@@ -928,13 +942,19 @@ static void task_numa_placement(struct task_struct *p)
 	/* Find the node with the highest number of faults */
 	for_each_online_node(nid) {
 		unsigned long faults;
+		int priv, i;
 
-		/* Decay existing window and copy faults since last scan */
-		p->numa_faults[nid] >>= 1;
-		p->numa_faults[nid] += p->numa_faults_buffer[nid];
-		p->numa_faults_buffer[nid] = 0;
+		for (priv = 0; priv < 2; priv++) {
+			i = task_faults_idx(nid, priv);
 
-		faults = p->numa_faults[nid];
+			/* Decay existing window, copy faults since last scan */
+			p->numa_faults[i] >>= 1;
+			p->numa_faults[i] += p->numa_faults_buffer[i];
+			p->numa_faults_buffer[i] = 0;
+		}
+
+		/* Find maximum private faults */
+		faults = p->numa_faults[task_faults_idx(nid, 1)];
 		if (faults > max_faults) {
 			max_faults = faults;
 			max_nid = nid;
@@ -970,16 +990,20 @@ static void task_numa_placement(struct task_struct *p)
 /*
  * Got a PROT_NONE fault for a page on @node.
  */
-void task_numa_fault(int node, int pages, bool migrated)
+void task_numa_fault(int last_nid, int node, int pages, bool migrated)
 {
 	struct task_struct *p = current;
+	int priv;
 
 	if (!numabalancing_enabled)
 		return;
 
+	/* For now, do not attempt to detect private/shared accesses */
+	priv = 1;
+
 	/* Allocate buffer to track faults on a per-node basis */
 	if (unlikely(!p->numa_faults)) {
-		int size = sizeof(*p->numa_faults) * nr_node_ids;
+		int size = sizeof(*p->numa_faults) * 2 * nr_node_ids;
 
 		/* numa_faults and numa_faults_buffer share the allocation */
 		p->numa_faults = kzalloc(size * 2, GFP_KERNEL|__GFP_NOWARN);
@@ -987,7 +1011,7 @@ void task_numa_fault(int node, int pages, bool migrated)
 			return;
 
 		BUG_ON(p->numa_faults_buffer);
-		p->numa_faults_buffer = p->numa_faults + nr_node_ids;
+		p->numa_faults_buffer = p->numa_faults + (2 * nr_node_ids);
 	}
 
 	/*
@@ -1005,7 +1029,7 @@ void task_numa_fault(int node, int pages, bool migrated)
 
 	task_numa_placement(p);
 
-	p->numa_faults_buffer[node] += pages;
+	p->numa_faults_buffer[task_faults_idx(node, priv)] += pages;
 }
 
 static void reset_ptenuma_scan(struct task_struct *p)
@@ -4146,7 +4170,7 @@ static bool migrate_improves_locality(struct task_struct *p, struct lb_env *env)
 		return false;
 
 	if (dst_nid == p->numa_preferred_nid ||
-	    p->numa_faults[dst_nid] > p->numa_faults[src_nid])
+	    task_faults(p, dst_nid) > task_faults(p, src_nid))
 		return true;
 
 	return false;
@@ -4170,7 +4194,7 @@ static bool migrate_degrades_locality(struct task_struct *p, struct lb_env *env)
 	    p->numa_migrate_seq >= sysctl_numa_balancing_settle_count)
 		return false;
 
-	if (p->numa_faults[dst_nid] < p->numa_faults[src_nid])
+	if (task_faults(p, dst_nid) < task_faults(p, src_nid))
 		return true;
 
 	return false;
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 8677dbf31c2e..914216733e0a 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1282,7 +1282,7 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	struct page *page;
 	unsigned long haddr = addr & HPAGE_PMD_MASK;
 	int page_nid = -1, this_nid = numa_node_id();
-	int target_nid;
+	int target_nid, last_nid = -1;
 	bool page_locked;
 	bool migrated = false;
 
@@ -1293,6 +1293,7 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	page = pmd_page(pmd);
 	BUG_ON(is_huge_zero_page(page));
 	page_nid = page_to_nid(page);
+	last_nid = page_nid_last(page);
 	count_vm_numa_event(NUMA_HINT_FAULTS);
 	if (page_nid == this_nid)
 		count_vm_numa_event(NUMA_HINT_FAULTS_LOCAL);
@@ -1361,7 +1362,7 @@ out:
 		page_unlock_anon_vma_read(anon_vma);
 
 	if (page_nid != -1)
-		task_numa_fault(page_nid, HPAGE_PMD_NR, migrated);
+		task_numa_fault(last_nid, page_nid, HPAGE_PMD_NR, migrated);
 
 	return 0;
 }
diff --git a/mm/memory.c b/mm/memory.c
index ed51f15136ee..24bc9b848af6 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3536,6 +3536,7 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	struct page *page = NULL;
 	spinlock_t *ptl;
 	int page_nid = -1;
+	int last_nid;
 	int target_nid;
 	bool migrated = false;
 
@@ -3566,6 +3567,7 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	}
 	BUG_ON(is_zero_pfn(page_to_pfn(page)));
 
+	last_nid = page_nid_last(page);
 	page_nid = page_to_nid(page);
 	target_nid = numa_migrate_prep(page, vma, addr, page_nid);
 	pte_unmap_unlock(ptep, ptl);
@@ -3581,7 +3583,7 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 
 out:
 	if (page_nid != -1)
-		task_numa_fault(page_nid, 1, migrated);
+		task_numa_fault(last_nid, page_nid, 1, migrated);
 	return 0;
 }
 
@@ -3596,6 +3598,7 @@ static int do_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	unsigned long offset;
 	spinlock_t *ptl;
 	bool numa = false;
+	int last_nid;
 
 	spin_lock(&mm->page_table_lock);
 	pmd = *pmdp;
@@ -3643,6 +3646,7 @@ static int do_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		if (unlikely(page_mapcount(page) != 1))
 			continue;
 
+		last_nid = page_nid_last(page);
 		page_nid = page_to_nid(page);
 		target_nid = numa_migrate_prep(page, vma, addr, page_nid);
 		pte_unmap_unlock(pte, ptl);
@@ -3655,7 +3659,7 @@ static int do_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		}
 
 		if (page_nid != -1)
-			task_numa_fault(page_nid, 1, migrated);
+			task_numa_fault(last_nid, page_nid, 1, migrated);
 
 		pte = pte_offset_map_lock(mm, pmdp, addr, &ptl);
 	}
-- 
cgit 


From 9ff1d9ff3c2c8ab3feaeb2e8056a07ca293f7bde Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:04 +0100
Subject: sched/numa: Check current->mm before allocating NUMA faults

task_numa_placement checks current->mm but after buffers for faults
have already been uselessly allocated. Move the check earlier.

[peterz@infradead.org: Identified the problem]

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-27-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 89eeb89fd99a..3383079b1508 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -930,8 +930,6 @@ static void task_numa_placement(struct task_struct *p)
 	int seq, nid, max_nid = -1;
 	unsigned long max_faults = 0;
 
-	if (!p->mm)	/* for example, ksmd faulting in a user's mm */
-		return;
 	seq = ACCESS_ONCE(p->mm->numa_scan_seq);
 	if (p->numa_scan_seq == seq)
 		return;
@@ -998,6 +996,10 @@ void task_numa_fault(int last_nid, int node, int pages, bool migrated)
 	if (!numabalancing_enabled)
 		return;
 
+	/* for example, ksmd faulting in a user's mm */
+	if (!p->mm)
+		return;
+
 	/* For now, do not attempt to detect private/shared accesses */
 	priv = 1;
 
-- 
cgit 


From 1bc115d87dffd1c43bdc3c9c9d1e3a51c195d18e Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:05 +0100
Subject: mm: numa: Scan pages with elevated page_mapcount

Currently automatic NUMA balancing is unable to distinguish between false
shared versus private pages except by ignoring pages with an elevated
page_mapcount entirely. This avoids shared pages bouncing between the
nodes whose task is using them but that is ignored quite a lot of data.

This patch kicks away the training wheels in preparation for adding support
for identifying shared/private pages is now in place. The ordering is so
that the impact of the shared/private detection can be easily measured. Note
that the patch does not migrate shared, file-backed within vmas marked
VM_EXEC as these are generally shared library pages. Migrating such pages
is not beneficial as there is an expectation they are read-shared between
caches and iTLB and iCache pressure is generally low.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-28-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/migrate.h |  7 ++++---
 mm/huge_memory.c        | 12 +++++-------
 mm/memory.c             |  7 ++-----
 mm/migrate.c            | 17 ++++++-----------
 mm/mprotect.c           |  4 +---
 5 files changed, 18 insertions(+), 29 deletions(-)

diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index 8d3c57fdf221..f5096b58b20d 100644
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -90,11 +90,12 @@ static inline int migrate_huge_page_move_mapping(struct address_space *mapping,
 #endif /* CONFIG_MIGRATION */
 
 #ifdef CONFIG_NUMA_BALANCING
-extern int migrate_misplaced_page(struct page *page, int node);
-extern int migrate_misplaced_page(struct page *page, int node);
+extern int migrate_misplaced_page(struct page *page,
+				  struct vm_area_struct *vma, int node);
 extern bool migrate_ratelimited(int node);
 #else
-static inline int migrate_misplaced_page(struct page *page, int node)
+static inline int migrate_misplaced_page(struct page *page,
+					 struct vm_area_struct *vma, int node)
 {
 	return -EAGAIN; /* can't migrate now */
 }
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 914216733e0a..2a28c2c6c165 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1484,14 +1484,12 @@ int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
 			struct page *page = pmd_page(*pmd);
 
 			/*
-			 * Only check non-shared pages. Do not trap faults
-			 * against the zero page. The read-only data is likely
-			 * to be read-cached on the local CPU cache and it is
-			 * less useful to know about local vs remote hits on
-			 * the zero page.
+			 * Do not trap faults against the zero page. The
+			 * read-only data is likely to be read-cached on the
+			 * local CPU cache and it is less useful to know about
+			 * local vs remote hits on the zero page.
 			 */
-			if (page_mapcount(page) == 1 &&
-			    !is_huge_zero_page(page) &&
+			if (!is_huge_zero_page(page) &&
 			    !pmd_numa(*pmd)) {
 				entry = pmdp_get_and_clear(mm, addr, pmd);
 				entry = pmd_mknuma(entry);
diff --git a/mm/memory.c b/mm/memory.c
index 24bc9b848af6..3e3b4b8b6c41 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3577,7 +3577,7 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	}
 
 	/* Migrate to the requested node */
-	migrated = migrate_misplaced_page(page, target_nid);
+	migrated = migrate_misplaced_page(page, vma, target_nid);
 	if (migrated)
 		page_nid = target_nid;
 
@@ -3642,16 +3642,13 @@ static int do_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		page = vm_normal_page(vma, addr, pteval);
 		if (unlikely(!page))
 			continue;
-		/* only check non-shared pages */
-		if (unlikely(page_mapcount(page) != 1))
-			continue;
 
 		last_nid = page_nid_last(page);
 		page_nid = page_to_nid(page);
 		target_nid = numa_migrate_prep(page, vma, addr, page_nid);
 		pte_unmap_unlock(pte, ptl);
 		if (target_nid != -1) {
-			migrated = migrate_misplaced_page(page, target_nid);
+			migrated = migrate_misplaced_page(page, vma, target_nid);
 			if (migrated)
 				page_nid = target_nid;
 		} else {
diff --git a/mm/migrate.c b/mm/migrate.c
index 7bd90d3b16bb..fcba2f46bb80 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1599,7 +1599,8 @@ int numamigrate_isolate_page(pg_data_t *pgdat, struct page *page)
  * node. Caller is expected to have an elevated reference count on
  * the page that will be dropped by this function before returning.
  */
-int migrate_misplaced_page(struct page *page, int node)
+int migrate_misplaced_page(struct page *page, struct vm_area_struct *vma,
+			   int node)
 {
 	pg_data_t *pgdat = NODE_DATA(node);
 	int isolated;
@@ -1607,10 +1608,11 @@ int migrate_misplaced_page(struct page *page, int node)
 	LIST_HEAD(migratepages);
 
 	/*
-	 * Don't migrate pages that are mapped in multiple processes.
-	 * TODO: Handle false sharing detection instead of this hammer
+	 * Don't migrate file pages that are mapped in multiple processes
+	 * with execute permissions as they are probably shared libraries.
 	 */
-	if (page_mapcount(page) != 1)
+	if (page_mapcount(page) != 1 && page_is_file_cache(page) &&
+	    (vma->vm_flags & VM_EXEC))
 		goto out;
 
 	/*
@@ -1660,13 +1662,6 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm,
 	struct mem_cgroup *memcg = NULL;
 	int page_lru = page_is_file_cache(page);
 
-	/*
-	 * Don't migrate pages that are mapped in multiple processes.
-	 * TODO: Handle false sharing detection instead of this hammer
-	 */
-	if (page_mapcount(page) != 1)
-		goto out_dropref;
-
 	/*
 	 * Rate-limit the amount of data that is being migrated to a node.
 	 * Optimal placement is no good if the memory bus is saturated and
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 2da33dca6134..41e02923fcd9 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -69,9 +69,7 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 					if (last_nid != this_nid)
 						all_same_node = false;
 
-					/* only check non-shared pages */
-					if (!pte_numa(oldpte) &&
-					    page_mapcount(page) == 1) {
+					if (!pte_numa(oldpte)) {
 						ptent = pte_mknuma(ptent);
 						updated = true;
 					}
-- 
cgit 


From 073b5beea735c7e1970686c94ff1f3aaac790a2a Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:06 +0100
Subject: sched/numa: Remove check that skips small VMAs

task_numa_work skips small VMAs. At the time the logic was to reduce the
scanning overhead which was considerable. It is a dubious hack at best.
It would make much more sense to cache where faults have been observed
and only rescan those regions during subsequent PTE scans. Remove this
hack as motivation to do it properly in the future.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-29-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 3383079b1508..862d20d02e5c 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1127,10 +1127,6 @@ void task_numa_work(struct callback_head *work)
 		if (!vma_migratable(vma))
 			continue;
 
-		/* Skip small VMAs. They are not likely to be of relevance */
-		if (vma->vm_end - vma->vm_start < HPAGE_SIZE)
-			continue;
-
 		do {
 			start = max(start, vma->vm_start);
 			end = ALIGN(start + (pages << PAGE_SHIFT), HPAGE_SIZE);
-- 
cgit 


From b795854b1fa70f6aee923ae5df74ff7afeaddcaa Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:07 +0100
Subject: sched/numa: Set preferred NUMA node based on number of private faults

Ideally it would be possible to distinguish between NUMA hinting faults that
are private to a task and those that are shared. If treated identically
there is a risk that shared pages bounce between nodes depending on
the order they are referenced by tasks. Ultimately what is desirable is
that task private pages remain local to the task while shared pages are
interleaved between sharing tasks running on different nodes to give good
average performance. This is further complicated by THP as even
applications that partition their data may not be partitioning on a huge
page boundary.

To start with, this patch assumes that multi-threaded or multi-process
applications partition their data and that in general the private accesses
are more important for cpu->memory locality in the general case. Also,
no new infrastructure is required to treat private pages properly but
interleaving for shared pages requires additional infrastructure.

To detect private accesses the pid of the last accessing task is required
but the storage requirements are a high. This patch borrows heavily from
Ingo Molnar's patch "numa, mm, sched: Implement last-CPU+PID hash tracking"
to encode some bits from the last accessing task in the page flags as
well as the node information. Collisions will occur but it is better than
just depending on the node information. Node information is then used to
determine if a page needs to migrate. The PID information is used to detect
private/shared accesses. The preferred NUMA node is selected based on where
the maximum number of approximately private faults were measured. Shared
faults are not taken into consideration for a few reasons.

First, if there are many tasks sharing the page then they'll all move
towards the same node. The node will be compute overloaded and then
scheduled away later only to bounce back again. Alternatively the shared
tasks would just bounce around nodes because the fault information is
effectively noise. Either way accounting for shared faults the same as
private faults can result in lower performance overall.

The second reason is based on a hypothetical workload that has a small
number of very important, heavily accessed private pages but a large shared
array. The shared array would dominate the number of faults and be selected
as a preferred node even though it's the wrong decision.

The third reason is that multiple threads in a process will race each
other to fault the shared page making the fault information unreliable.

Signed-off-by: Mel Gorman <mgorman@suse.de>
[ Fix complication error when !NUMA_BALANCING. ]
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-30-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/mm.h                | 89 +++++++++++++++++++++++++++++----------
 include/linux/mm_types.h          |  4 +-
 include/linux/page-flags-layout.h | 28 +++++++-----
 kernel/sched/fair.c               | 12 ++++--
 mm/huge_memory.c                  |  8 ++--
 mm/memory.c                       | 16 +++----
 mm/mempolicy.c                    |  8 ++--
 mm/migrate.c                      |  4 +-
 mm/mm_init.c                      | 18 ++++----
 mm/mmzone.c                       | 14 +++---
 mm/mprotect.c                     | 26 ++++++++----
 mm/page_alloc.c                   |  4 +-
 12 files changed, 149 insertions(+), 82 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 8b6e55ee8855..bb412ce2a8b5 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -581,11 +581,11 @@ static inline pte_t maybe_mkwrite(pte_t pte, struct vm_area_struct *vma)
  * sets it, so none of the operations on it need to be atomic.
  */
 
-/* Page flags: | [SECTION] | [NODE] | ZONE | [LAST_NID] | ... | FLAGS | */
+/* Page flags: | [SECTION] | [NODE] | ZONE | [LAST_NIDPID] | ... | FLAGS | */
 #define SECTIONS_PGOFF		((sizeof(unsigned long)*8) - SECTIONS_WIDTH)
 #define NODES_PGOFF		(SECTIONS_PGOFF - NODES_WIDTH)
 #define ZONES_PGOFF		(NODES_PGOFF - ZONES_WIDTH)
-#define LAST_NID_PGOFF		(ZONES_PGOFF - LAST_NID_WIDTH)
+#define LAST_NIDPID_PGOFF	(ZONES_PGOFF - LAST_NIDPID_WIDTH)
 
 /*
  * Define the bit shifts to access each section.  For non-existent
@@ -595,7 +595,7 @@ static inline pte_t maybe_mkwrite(pte_t pte, struct vm_area_struct *vma)
 #define SECTIONS_PGSHIFT	(SECTIONS_PGOFF * (SECTIONS_WIDTH != 0))
 #define NODES_PGSHIFT		(NODES_PGOFF * (NODES_WIDTH != 0))
 #define ZONES_PGSHIFT		(ZONES_PGOFF * (ZONES_WIDTH != 0))
-#define LAST_NID_PGSHIFT	(LAST_NID_PGOFF * (LAST_NID_WIDTH != 0))
+#define LAST_NIDPID_PGSHIFT	(LAST_NIDPID_PGOFF * (LAST_NIDPID_WIDTH != 0))
 
 /* NODE:ZONE or SECTION:ZONE is used to ID a zone for the buddy allocator */
 #ifdef NODE_NOT_IN_PAGE_FLAGS
@@ -617,7 +617,7 @@ static inline pte_t maybe_mkwrite(pte_t pte, struct vm_area_struct *vma)
 #define ZONES_MASK		((1UL << ZONES_WIDTH) - 1)
 #define NODES_MASK		((1UL << NODES_WIDTH) - 1)
 #define SECTIONS_MASK		((1UL << SECTIONS_WIDTH) - 1)
-#define LAST_NID_MASK		((1UL << LAST_NID_WIDTH) - 1)
+#define LAST_NIDPID_MASK	((1UL << LAST_NIDPID_WIDTH) - 1)
 #define ZONEID_MASK		((1UL << ZONEID_SHIFT) - 1)
 
 static inline enum zone_type page_zonenum(const struct page *page)
@@ -661,48 +661,93 @@ static inline int page_to_nid(const struct page *page)
 #endif
 
 #ifdef CONFIG_NUMA_BALANCING
-#ifdef LAST_NID_NOT_IN_PAGE_FLAGS
-static inline int page_nid_xchg_last(struct page *page, int nid)
+static inline int nid_pid_to_nidpid(int nid, int pid)
 {
-	return xchg(&page->_last_nid, nid);
+	return ((nid & LAST__NID_MASK) << LAST__PID_SHIFT) | (pid & LAST__PID_MASK);
 }
 
-static inline int page_nid_last(struct page *page)
+static inline int nidpid_to_pid(int nidpid)
 {
-	return page->_last_nid;
+	return nidpid & LAST__PID_MASK;
 }
-static inline void page_nid_reset_last(struct page *page)
+
+static inline int nidpid_to_nid(int nidpid)
+{
+	return (nidpid >> LAST__PID_SHIFT) & LAST__NID_MASK;
+}
+
+static inline bool nidpid_pid_unset(int nidpid)
+{
+	return nidpid_to_pid(nidpid) == (-1 & LAST__PID_MASK);
+}
+
+static inline bool nidpid_nid_unset(int nidpid)
 {
-	page->_last_nid = -1;
+	return nidpid_to_nid(nidpid) == (-1 & LAST__NID_MASK);
+}
+
+#ifdef LAST_NIDPID_NOT_IN_PAGE_FLAGS
+static inline int page_nidpid_xchg_last(struct page *page, int nid)
+{
+	return xchg(&page->_last_nidpid, nid);
+}
+
+static inline int page_nidpid_last(struct page *page)
+{
+	return page->_last_nidpid;
+}
+static inline void page_nidpid_reset_last(struct page *page)
+{
+	page->_last_nidpid = -1;
 }
 #else
-static inline int page_nid_last(struct page *page)
+static inline int page_nidpid_last(struct page *page)
 {
-	return (page->flags >> LAST_NID_PGSHIFT) & LAST_NID_MASK;
+	return (page->flags >> LAST_NIDPID_PGSHIFT) & LAST_NIDPID_MASK;
 }
 
-extern int page_nid_xchg_last(struct page *page, int nid);
+extern int page_nidpid_xchg_last(struct page *page, int nidpid);
 
-static inline void page_nid_reset_last(struct page *page)
+static inline void page_nidpid_reset_last(struct page *page)
 {
-	int nid = (1 << LAST_NID_SHIFT) - 1;
+	int nidpid = (1 << LAST_NIDPID_SHIFT) - 1;
 
-	page->flags &= ~(LAST_NID_MASK << LAST_NID_PGSHIFT);
-	page->flags |= (nid & LAST_NID_MASK) << LAST_NID_PGSHIFT;
+	page->flags &= ~(LAST_NIDPID_MASK << LAST_NIDPID_PGSHIFT);
+	page->flags |= (nidpid & LAST_NIDPID_MASK) << LAST_NIDPID_PGSHIFT;
 }
-#endif /* LAST_NID_NOT_IN_PAGE_FLAGS */
+#endif /* LAST_NIDPID_NOT_IN_PAGE_FLAGS */
 #else
-static inline int page_nid_xchg_last(struct page *page, int nid)
+static inline int page_nidpid_xchg_last(struct page *page, int nidpid)
 {
 	return page_to_nid(page);
 }
 
-static inline int page_nid_last(struct page *page)
+static inline int page_nidpid_last(struct page *page)
 {
 	return page_to_nid(page);
 }
 
-static inline void page_nid_reset_last(struct page *page)
+static inline int nidpid_to_nid(int nidpid)
+{
+	return -1;
+}
+
+static inline int nidpid_to_pid(int nidpid)
+{
+	return -1;
+}
+
+static inline int nid_pid_to_nidpid(int nid, int pid)
+{
+	return -1;
+}
+
+static inline bool nidpid_pid_unset(int nidpid)
+{
+	return 1;
+}
+
+static inline void page_nidpid_reset_last(struct page *page)
 {
 }
 #endif
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index b7adf1d4310c..38a902a6d1e3 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -174,8 +174,8 @@ struct page {
 	void *shadow;
 #endif
 
-#ifdef LAST_NID_NOT_IN_PAGE_FLAGS
-	int _last_nid;
+#ifdef LAST_NIDPID_NOT_IN_PAGE_FLAGS
+	int _last_nidpid;
 #endif
 }
 /*
diff --git a/include/linux/page-flags-layout.h b/include/linux/page-flags-layout.h
index 93506a114034..02bc9184f16b 100644
--- a/include/linux/page-flags-layout.h
+++ b/include/linux/page-flags-layout.h
@@ -38,10 +38,10 @@
  * The last is when there is insufficient space in page->flags and a separate
  * lookup is necessary.
  *
- * No sparsemem or sparsemem vmemmap: |       NODE     | ZONE |          ... | FLAGS |
- *         " plus space for last_nid: |       NODE     | ZONE | LAST_NID ... | FLAGS |
- * classic sparse with space for node:| SECTION | NODE | ZONE |          ... | FLAGS |
- *         " plus space for last_nid: | SECTION | NODE | ZONE | LAST_NID ... | FLAGS |
+ * No sparsemem or sparsemem vmemmap: |       NODE     | ZONE |             ... | FLAGS |
+ *      " plus space for last_nidpid: |       NODE     | ZONE | LAST_NIDPID ... | FLAGS |
+ * classic sparse with space for node:| SECTION | NODE | ZONE |             ... | FLAGS |
+ *      " plus space for last_nidpid: | SECTION | NODE | ZONE | LAST_NIDPID ... | FLAGS |
  * classic sparse no space for node:  | SECTION |     ZONE    | ... | FLAGS |
  */
 #if defined(CONFIG_SPARSEMEM) && !defined(CONFIG_SPARSEMEM_VMEMMAP)
@@ -62,15 +62,21 @@
 #endif
 
 #ifdef CONFIG_NUMA_BALANCING
-#define LAST_NID_SHIFT NODES_SHIFT
+#define LAST__PID_SHIFT 8
+#define LAST__PID_MASK  ((1 << LAST__PID_SHIFT)-1)
+
+#define LAST__NID_SHIFT NODES_SHIFT
+#define LAST__NID_MASK  ((1 << LAST__NID_SHIFT)-1)
+
+#define LAST_NIDPID_SHIFT (LAST__PID_SHIFT+LAST__NID_SHIFT)
 #else
-#define LAST_NID_SHIFT 0
+#define LAST_NIDPID_SHIFT 0
 #endif
 
-#if SECTIONS_WIDTH+ZONES_WIDTH+NODES_SHIFT+LAST_NID_SHIFT <= BITS_PER_LONG - NR_PAGEFLAGS
-#define LAST_NID_WIDTH LAST_NID_SHIFT
+#if SECTIONS_WIDTH+ZONES_WIDTH+NODES_SHIFT+LAST_NIDPID_SHIFT <= BITS_PER_LONG - NR_PAGEFLAGS
+#define LAST_NIDPID_WIDTH LAST_NIDPID_SHIFT
 #else
-#define LAST_NID_WIDTH 0
+#define LAST_NIDPID_WIDTH 0
 #endif
 
 /*
@@ -81,8 +87,8 @@
 #define NODE_NOT_IN_PAGE_FLAGS
 #endif
 
-#if defined(CONFIG_NUMA_BALANCING) && LAST_NID_WIDTH == 0
-#define LAST_NID_NOT_IN_PAGE_FLAGS
+#if defined(CONFIG_NUMA_BALANCING) && LAST_NIDPID_WIDTH == 0
+#define LAST_NIDPID_NOT_IN_PAGE_FLAGS
 #endif
 
 #endif /* _LINUX_PAGE_FLAGS_LAYOUT */
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 862d20d02e5c..b1de7c55e9f7 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -988,7 +988,7 @@ static void task_numa_placement(struct task_struct *p)
 /*
  * Got a PROT_NONE fault for a page on @node.
  */
-void task_numa_fault(int last_nid, int node, int pages, bool migrated)
+void task_numa_fault(int last_nidpid, int node, int pages, bool migrated)
 {
 	struct task_struct *p = current;
 	int priv;
@@ -1000,8 +1000,14 @@ void task_numa_fault(int last_nid, int node, int pages, bool migrated)
 	if (!p->mm)
 		return;
 
-	/* For now, do not attempt to detect private/shared accesses */
-	priv = 1;
+	/*
+	 * First accesses are treated as private, otherwise consider accesses
+	 * to be private if the accessing pid has not changed
+	 */
+	if (!nidpid_pid_unset(last_nidpid))
+		priv = ((p->pid & LAST__PID_MASK) == nidpid_to_pid(last_nidpid));
+	else
+		priv = 1;
 
 	/* Allocate buffer to track faults on a per-node basis */
 	if (unlikely(!p->numa_faults)) {
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 2a28c2c6c165..0baf0e4d5203 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1282,7 +1282,7 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	struct page *page;
 	unsigned long haddr = addr & HPAGE_PMD_MASK;
 	int page_nid = -1, this_nid = numa_node_id();
-	int target_nid, last_nid = -1;
+	int target_nid, last_nidpid = -1;
 	bool page_locked;
 	bool migrated = false;
 
@@ -1293,7 +1293,7 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	page = pmd_page(pmd);
 	BUG_ON(is_huge_zero_page(page));
 	page_nid = page_to_nid(page);
-	last_nid = page_nid_last(page);
+	last_nidpid = page_nidpid_last(page);
 	count_vm_numa_event(NUMA_HINT_FAULTS);
 	if (page_nid == this_nid)
 		count_vm_numa_event(NUMA_HINT_FAULTS_LOCAL);
@@ -1362,7 +1362,7 @@ out:
 		page_unlock_anon_vma_read(anon_vma);
 
 	if (page_nid != -1)
-		task_numa_fault(last_nid, page_nid, HPAGE_PMD_NR, migrated);
+		task_numa_fault(last_nidpid, page_nid, HPAGE_PMD_NR, migrated);
 
 	return 0;
 }
@@ -1682,7 +1682,7 @@ static void __split_huge_page_refcount(struct page *page,
 		page_tail->mapping = page->mapping;
 
 		page_tail->index = page->index + i;
-		page_nid_xchg_last(page_tail, page_nid_last(page));
+		page_nidpid_xchg_last(page_tail, page_nidpid_last(page));
 
 		BUG_ON(!PageAnon(page_tail));
 		BUG_ON(!PageUptodate(page_tail));
diff --git a/mm/memory.c b/mm/memory.c
index 3e3b4b8b6c41..cc7f20691c82 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -69,8 +69,8 @@
 
 #include "internal.h"
 
-#ifdef LAST_NID_NOT_IN_PAGE_FLAGS
-#warning Unfortunate NUMA and NUMA Balancing config, growing page-frame for last_nid.
+#ifdef LAST_NIDPID_NOT_IN_PAGE_FLAGS
+#warning Unfortunate NUMA and NUMA Balancing config, growing page-frame for last_nidpid.
 #endif
 
 #ifndef CONFIG_NEED_MULTIPLE_NODES
@@ -3536,7 +3536,7 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	struct page *page = NULL;
 	spinlock_t *ptl;
 	int page_nid = -1;
-	int last_nid;
+	int last_nidpid;
 	int target_nid;
 	bool migrated = false;
 
@@ -3567,7 +3567,7 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	}
 	BUG_ON(is_zero_pfn(page_to_pfn(page)));
 
-	last_nid = page_nid_last(page);
+	last_nidpid = page_nidpid_last(page);
 	page_nid = page_to_nid(page);
 	target_nid = numa_migrate_prep(page, vma, addr, page_nid);
 	pte_unmap_unlock(ptep, ptl);
@@ -3583,7 +3583,7 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 
 out:
 	if (page_nid != -1)
-		task_numa_fault(last_nid, page_nid, 1, migrated);
+		task_numa_fault(last_nidpid, page_nid, 1, migrated);
 	return 0;
 }
 
@@ -3598,7 +3598,7 @@ static int do_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	unsigned long offset;
 	spinlock_t *ptl;
 	bool numa = false;
-	int last_nid;
+	int last_nidpid;
 
 	spin_lock(&mm->page_table_lock);
 	pmd = *pmdp;
@@ -3643,7 +3643,7 @@ static int do_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		if (unlikely(!page))
 			continue;
 
-		last_nid = page_nid_last(page);
+		last_nidpid = page_nidpid_last(page);
 		page_nid = page_to_nid(page);
 		target_nid = numa_migrate_prep(page, vma, addr, page_nid);
 		pte_unmap_unlock(pte, ptl);
@@ -3656,7 +3656,7 @@ static int do_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		}
 
 		if (page_nid != -1)
-			task_numa_fault(last_nid, page_nid, 1, migrated);
+			task_numa_fault(last_nidpid, page_nid, 1, migrated);
 
 		pte = pte_offset_map_lock(mm, pmdp, addr, &ptl);
 	}
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 04729647f359..aff1f1ed3dc5 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2348,9 +2348,11 @@ int mpol_misplaced(struct page *page, struct vm_area_struct *vma, unsigned long
 
 	/* Migrate the page towards the node whose CPU is referencing it */
 	if (pol->flags & MPOL_F_MORON) {
-		int last_nid;
+		int last_nidpid;
+		int this_nidpid;
 
 		polnid = numa_node_id();
+		this_nidpid = nid_pid_to_nidpid(polnid, current->pid);
 
 		/*
 		 * Multi-stage node selection is used in conjunction
@@ -2373,8 +2375,8 @@ int mpol_misplaced(struct page *page, struct vm_area_struct *vma, unsigned long
 		 * it less likely we act on an unlikely task<->page
 		 * relation.
 		 */
-		last_nid = page_nid_xchg_last(page, polnid);
-		if (last_nid != polnid)
+		last_nidpid = page_nidpid_xchg_last(page, this_nidpid);
+		if (!nidpid_pid_unset(last_nidpid) && nidpid_to_nid(last_nidpid) != polnid)
 			goto out;
 	}
 
diff --git a/mm/migrate.c b/mm/migrate.c
index fcba2f46bb80..025d1e3d2ad2 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1498,7 +1498,7 @@ static struct page *alloc_misplaced_dst_page(struct page *page,
 					  __GFP_NOWARN) &
 					 ~GFP_IOFS, 0);
 	if (newpage)
-		page_nid_xchg_last(newpage, page_nid_last(page));
+		page_nidpid_xchg_last(newpage, page_nidpid_last(page));
 
 	return newpage;
 }
@@ -1675,7 +1675,7 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm,
 	if (!new_page)
 		goto out_fail;
 
-	page_nid_xchg_last(new_page, page_nid_last(page));
+	page_nidpid_xchg_last(new_page, page_nidpid_last(page));
 
 	isolated = numamigrate_isolate_page(pgdat, page);
 	if (!isolated) {
diff --git a/mm/mm_init.c b/mm/mm_init.c
index 633c08863fd8..467de579784b 100644
--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -71,26 +71,26 @@ void __init mminit_verify_pageflags_layout(void)
 	unsigned long or_mask, add_mask;
 
 	shift = 8 * sizeof(unsigned long);
-	width = shift - SECTIONS_WIDTH - NODES_WIDTH - ZONES_WIDTH - LAST_NID_SHIFT;
+	width = shift - SECTIONS_WIDTH - NODES_WIDTH - ZONES_WIDTH - LAST_NIDPID_SHIFT;
 	mminit_dprintk(MMINIT_TRACE, "pageflags_layout_widths",
-		"Section %d Node %d Zone %d Lastnid %d Flags %d\n",
+		"Section %d Node %d Zone %d Lastnidpid %d Flags %d\n",
 		SECTIONS_WIDTH,
 		NODES_WIDTH,
 		ZONES_WIDTH,
-		LAST_NID_WIDTH,
+		LAST_NIDPID_WIDTH,
 		NR_PAGEFLAGS);
 	mminit_dprintk(MMINIT_TRACE, "pageflags_layout_shifts",
-		"Section %d Node %d Zone %d Lastnid %d\n",
+		"Section %d Node %d Zone %d Lastnidpid %d\n",
 		SECTIONS_SHIFT,
 		NODES_SHIFT,
 		ZONES_SHIFT,
-		LAST_NID_SHIFT);
+		LAST_NIDPID_SHIFT);
 	mminit_dprintk(MMINIT_TRACE, "pageflags_layout_pgshifts",
-		"Section %lu Node %lu Zone %lu Lastnid %lu\n",
+		"Section %lu Node %lu Zone %lu Lastnidpid %lu\n",
 		(unsigned long)SECTIONS_PGSHIFT,
 		(unsigned long)NODES_PGSHIFT,
 		(unsigned long)ZONES_PGSHIFT,
-		(unsigned long)LAST_NID_PGSHIFT);
+		(unsigned long)LAST_NIDPID_PGSHIFT);
 	mminit_dprintk(MMINIT_TRACE, "pageflags_layout_nodezoneid",
 		"Node/Zone ID: %lu -> %lu\n",
 		(unsigned long)(ZONEID_PGOFF + ZONEID_SHIFT),
@@ -102,9 +102,9 @@ void __init mminit_verify_pageflags_layout(void)
 	mminit_dprintk(MMINIT_TRACE, "pageflags_layout_nodeflags",
 		"Node not in page flags");
 #endif
-#ifdef LAST_NID_NOT_IN_PAGE_FLAGS
+#ifdef LAST_NIDPID_NOT_IN_PAGE_FLAGS
 	mminit_dprintk(MMINIT_TRACE, "pageflags_layout_nodeflags",
-		"Last nid not in page flags");
+		"Last nidpid not in page flags");
 #endif
 
 	if (SECTIONS_WIDTH) {
diff --git a/mm/mmzone.c b/mm/mmzone.c
index 2ac0afbd68f3..25bb477deb26 100644
--- a/mm/mmzone.c
+++ b/mm/mmzone.c
@@ -97,20 +97,20 @@ void lruvec_init(struct lruvec *lruvec)
 		INIT_LIST_HEAD(&lruvec->lists[lru]);
 }
 
-#if defined(CONFIG_NUMA_BALANCING) && !defined(LAST_NID_NOT_IN_PAGE_FLAGS)
-int page_nid_xchg_last(struct page *page, int nid)
+#if defined(CONFIG_NUMA_BALANCING) && !defined(LAST_NIDPID_NOT_IN_PAGE_FLAGS)
+int page_nidpid_xchg_last(struct page *page, int nidpid)
 {
 	unsigned long old_flags, flags;
-	int last_nid;
+	int last_nidpid;
 
 	do {
 		old_flags = flags = page->flags;
-		last_nid = page_nid_last(page);
+		last_nidpid = page_nidpid_last(page);
 
-		flags &= ~(LAST_NID_MASK << LAST_NID_PGSHIFT);
-		flags |= (nid & LAST_NID_MASK) << LAST_NID_PGSHIFT;
+		flags &= ~(LAST_NIDPID_MASK << LAST_NIDPID_PGSHIFT);
+		flags |= (nidpid & LAST_NIDPID_MASK) << LAST_NIDPID_PGSHIFT;
 	} while (unlikely(cmpxchg(&page->flags, old_flags, flags) != old_flags));
 
-	return last_nid;
+	return last_nidpid;
 }
 #endif
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 41e02923fcd9..f0b087d1069c 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -37,14 +37,15 @@ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
 
 static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 		unsigned long addr, unsigned long end, pgprot_t newprot,
-		int dirty_accountable, int prot_numa, bool *ret_all_same_node)
+		int dirty_accountable, int prot_numa, bool *ret_all_same_nidpid)
 {
 	struct mm_struct *mm = vma->vm_mm;
 	pte_t *pte, oldpte;
 	spinlock_t *ptl;
 	unsigned long pages = 0;
-	bool all_same_node = true;
+	bool all_same_nidpid = true;
 	int last_nid = -1;
+	int last_pid = -1;
 
 	pte = pte_offset_map_lock(mm, pmd, addr, &ptl);
 	arch_enter_lazy_mmu_mode();
@@ -63,11 +64,18 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 
 				page = vm_normal_page(vma, addr, oldpte);
 				if (page) {
-					int this_nid = page_to_nid(page);
+					int nidpid = page_nidpid_last(page);
+					int this_nid = nidpid_to_nid(nidpid);
+					int this_pid = nidpid_to_pid(nidpid);
+
 					if (last_nid == -1)
 						last_nid = this_nid;
-					if (last_nid != this_nid)
-						all_same_node = false;
+					if (last_pid == -1)
+						last_pid = this_pid;
+					if (last_nid != this_nid ||
+					    last_pid != this_pid) {
+						all_same_nidpid = false;
+					}
 
 					if (!pte_numa(oldpte)) {
 						ptent = pte_mknuma(ptent);
@@ -107,7 +115,7 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 	arch_leave_lazy_mmu_mode();
 	pte_unmap_unlock(pte - 1, ptl);
 
-	*ret_all_same_node = all_same_node;
+	*ret_all_same_nidpid = all_same_nidpid;
 	return pages;
 }
 
@@ -134,7 +142,7 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
 	pmd_t *pmd;
 	unsigned long next;
 	unsigned long pages = 0;
-	bool all_same_node;
+	bool all_same_nidpid;
 
 	pmd = pmd_offset(pud, addr);
 	do {
@@ -158,7 +166,7 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
 		if (pmd_none_or_clear_bad(pmd))
 			continue;
 		pages += change_pte_range(vma, pmd, addr, next, newprot,
-				 dirty_accountable, prot_numa, &all_same_node);
+				 dirty_accountable, prot_numa, &all_same_nidpid);
 
 		/*
 		 * If we are changing protections for NUMA hinting faults then
@@ -166,7 +174,7 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
 		 * node. This allows a regular PMD to be handled as one fault
 		 * and effectively batches the taking of the PTL
 		 */
-		if (prot_numa && all_same_node)
+		if (prot_numa && all_same_nidpid)
 			change_pmd_protnuma(vma->vm_mm, addr, pmd);
 	} while (pmd++, addr = next, addr != end);
 
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index dd886fac451a..89bedd0e4cad 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -626,7 +626,7 @@ static inline int free_pages_check(struct page *page)
 		bad_page(page);
 		return 1;
 	}
-	page_nid_reset_last(page);
+	page_nidpid_reset_last(page);
 	if (page->flags & PAGE_FLAGS_CHECK_AT_PREP)
 		page->flags &= ~PAGE_FLAGS_CHECK_AT_PREP;
 	return 0;
@@ -4015,7 +4015,7 @@ void __meminit memmap_init_zone(unsigned long size, int nid, unsigned long zone,
 		mminit_verify_page_links(page, zone, nid, pfn);
 		init_page_count(page);
 		page_mapcount_reset(page);
-		page_nid_reset_last(page);
+		page_nidpid_reset_last(page);
 		SetPageReserved(page);
 		/*
 		 * Mark the block movable so that blocks are reserved for
-- 
cgit 


From 6fe6b2d6dabf392aceb3ad3a5e859b46a04465c6 Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Mon, 7 Oct 2013 11:29:08 +0100
Subject: sched/numa: Do not migrate memory immediately after switching node

The load balancer can move tasks between nodes and does not take NUMA
locality into account. With automatic NUMA balancing this may result in the
tasks working set being migrated to the new node. However, as the fault
buffer will still store faults from the old node the schduler may decide to
reset the preferred node and migrate the task back resulting in more
migrations.

The ideal would be that the scheduler did not migrate tasks with a heavy
memory footprint but this may result nodes being overloaded. We could
also discard the fault information on task migration but this would still
cause all the tasks working set to be migrated. This patch simply avoids
migrating the memory for a short time after a task is migrated.

Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-31-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/core.c |  2 +-
 kernel/sched/fair.c | 18 ++++++++++++++++--
 mm/mempolicy.c      | 12 ++++++++++++
 3 files changed, 29 insertions(+), 3 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 66b878e94554..9060a7f4e9ed 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1631,7 +1631,7 @@ static void __sched_fork(struct task_struct *p)
 
 	p->node_stamp = 0ULL;
 	p->numa_scan_seq = p->mm ? p->mm->numa_scan_seq : 0;
-	p->numa_migrate_seq = 0;
+	p->numa_migrate_seq = 1;
 	p->numa_scan_period = sysctl_numa_balancing_scan_delay;
 	p->numa_preferred_nid = -1;
 	p->numa_work.next = &p->numa_work;
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index b1de7c55e9f7..61ec0d4765b9 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -884,7 +884,7 @@ static unsigned int task_scan_max(struct task_struct *p)
  * the preferred node but still allow the scheduler to move the task again if
  * the nodes CPUs are overloaded.
  */
-unsigned int sysctl_numa_balancing_settle_count __read_mostly = 3;
+unsigned int sysctl_numa_balancing_settle_count __read_mostly = 4;
 
 static inline int task_faults_idx(int nid, int priv)
 {
@@ -980,7 +980,7 @@ static void task_numa_placement(struct task_struct *p)
 
 		/* Update the preferred nid and migrate task if possible */
 		p->numa_preferred_nid = max_nid;
-		p->numa_migrate_seq = 0;
+		p->numa_migrate_seq = 1;
 		migrate_task_to(p, preferred_cpu);
 	}
 }
@@ -4121,6 +4121,20 @@ static void move_task(struct task_struct *p, struct lb_env *env)
 	set_task_cpu(p, env->dst_cpu);
 	activate_task(env->dst_rq, p, 0);
 	check_preempt_curr(env->dst_rq, p, 0);
+#ifdef CONFIG_NUMA_BALANCING
+	if (p->numa_preferred_nid != -1) {
+		int src_nid = cpu_to_node(env->src_cpu);
+		int dst_nid = cpu_to_node(env->dst_cpu);
+
+		/*
+		 * If the load balancer has moved the task then limit
+		 * migrations from taking place in the short term in
+		 * case this is a short-lived migration.
+		 */
+		if (src_nid != dst_nid && dst_nid != p->numa_preferred_nid)
+			p->numa_migrate_seq = 0;
+	}
+#endif
 }
 
 /*
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index aff1f1ed3dc5..196d8da2b657 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2378,6 +2378,18 @@ int mpol_misplaced(struct page *page, struct vm_area_struct *vma, unsigned long
 		last_nidpid = page_nidpid_xchg_last(page, this_nidpid);
 		if (!nidpid_pid_unset(last_nidpid) && nidpid_to_nid(last_nidpid) != polnid)
 			goto out;
+
+#ifdef CONFIG_NUMA_BALANCING
+		/*
+		 * If the scheduler has just moved us away from our
+		 * preferred node, do not bother migrating pages yet.
+		 * This way a short and temporary process migration will
+		 * not cause excessive memory migration.
+		 */
+		if (polnid != current->numa_preferred_nid &&
+				!current->numa_migrate_seq)
+			goto out;
+#endif
 	}
 
 	if (curnid != polnid)
-- 
cgit 


From fc3147245d193bd0f57307859c698fa28a20b0fe Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:09 +0100
Subject: mm: numa: Limit NUMA scanning to migrate-on-fault VMAs

There is a 90% regression observed with a large Oracle performance test
on a 4 node system. Profiles indicated that the overhead was due to
contention on sp_lock when looking up shared memory policies. These
policies do not have the appropriate flags to allow them to be
automatically balanced so trapping faults on them is pointless. This
patch skips VMAs that do not have MPOL_F_MOF set.

[riel@redhat.com: Initial patch]

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reported-and-tested-by: Joe Mario <jmario@redhat.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-32-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/mempolicy.h |  1 +
 kernel/sched/fair.c       |  2 +-
 mm/mempolicy.c            | 24 ++++++++++++++++++++++++
 3 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index da6716b9e3fe..ea4d2495c646 100644
--- a/include/linux/mempolicy.h
+++ b/include/linux/mempolicy.h
@@ -136,6 +136,7 @@ struct mempolicy *mpol_shared_policy_lookup(struct shared_policy *sp,
 
 struct mempolicy *get_vma_policy(struct task_struct *tsk,
 		struct vm_area_struct *vma, unsigned long addr);
+bool vma_policy_mof(struct task_struct *task, struct vm_area_struct *vma);
 
 extern void numa_default_policy(void);
 extern void numa_policy_init(void);
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 61ec0d4765b9..d98175d5c2c6 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1130,7 +1130,7 @@ void task_numa_work(struct callback_head *work)
 		vma = mm->mmap;
 	}
 	for (; vma; vma = vma->vm_next) {
-		if (!vma_migratable(vma))
+		if (!vma_migratable(vma) || !vma_policy_mof(p, vma))
 			continue;
 
 		do {
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 196d8da2b657..0e895a2eed5f 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -1679,6 +1679,30 @@ struct mempolicy *get_vma_policy(struct task_struct *task,
 	return pol;
 }
 
+bool vma_policy_mof(struct task_struct *task, struct vm_area_struct *vma)
+{
+	struct mempolicy *pol = get_task_policy(task);
+	if (vma) {
+		if (vma->vm_ops && vma->vm_ops->get_policy) {
+			bool ret = false;
+
+			pol = vma->vm_ops->get_policy(vma, vma->vm_start);
+			if (pol && (pol->flags & MPOL_F_MOF))
+				ret = true;
+			mpol_cond_put(pol);
+
+			return ret;
+		} else if (vma->vm_policy) {
+			pol = vma->vm_policy;
+		}
+	}
+
+	if (!pol)
+		return default_policy.flags & MPOL_F_MOF;
+
+	return pol->flags & MPOL_F_MOF;
+}
+
 static int apply_policy_zone(struct mempolicy *policy, enum zone_type zone)
 {
 	enum zone_type dynamic_policy_zone = policy_zone;
-- 
cgit 


From 58d081b5082dd85e02ac9a1fb151d97395340a09 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:10 +0100
Subject: sched/numa: Avoid overloading CPUs on a preferred NUMA node

This patch replaces find_idlest_cpu_node with task_numa_find_cpu.
find_idlest_cpu_node has two critical limitations. It does not take the
scheduling class into account when calculating the load and it is unsuitable
for using when comparing loads between NUMA nodes.

task_numa_find_cpu uses similar load calculations to wake_affine() when
selecting the least loaded CPU within a scheduling domain common to the
source and destimation nodes. It avoids causing CPU load imbalances in
the machine by refusing to migrate if the relative load on the target
CPU is higher than the source CPU.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-33-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 131 ++++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 102 insertions(+), 29 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index d98175d5c2c6..51a760081193 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -901,28 +901,114 @@ static inline unsigned long task_faults(struct task_struct *p, int nid)
 }
 
 static unsigned long weighted_cpuload(const int cpu);
+static unsigned long source_load(int cpu, int type);
+static unsigned long target_load(int cpu, int type);
+static unsigned long power_of(int cpu);
+static long effective_load(struct task_group *tg, int cpu, long wl, long wg);
 
+struct numa_stats {
+	unsigned long load;
+	s64 eff_load;
+	unsigned long faults;
+};
 
-static int
-find_idlest_cpu_node(int this_cpu, int nid)
-{
-	unsigned long load, min_load = ULONG_MAX;
-	int i, idlest_cpu = this_cpu;
+struct task_numa_env {
+	struct task_struct *p;
 
-	BUG_ON(cpu_to_node(this_cpu) == nid);
+	int src_cpu, src_nid;
+	int dst_cpu, dst_nid;
 
-	rcu_read_lock();
-	for_each_cpu(i, cpumask_of_node(nid)) {
-		load = weighted_cpuload(i);
+	struct numa_stats src_stats, dst_stats;
 
-		if (load < min_load) {
-			min_load = load;
-			idlest_cpu = i;
+	unsigned long best_load;
+	int best_cpu;
+};
+
+static int task_numa_migrate(struct task_struct *p)
+{
+	int node_cpu = cpumask_first(cpumask_of_node(p->numa_preferred_nid));
+	struct task_numa_env env = {
+		.p = p,
+		.src_cpu = task_cpu(p),
+		.src_nid = cpu_to_node(task_cpu(p)),
+		.dst_cpu = node_cpu,
+		.dst_nid = p->numa_preferred_nid,
+		.best_load = ULONG_MAX,
+		.best_cpu = task_cpu(p),
+	};
+	struct sched_domain *sd;
+	int cpu;
+	struct task_group *tg = task_group(p);
+	unsigned long weight;
+	bool balanced;
+	int imbalance_pct, idx = -1;
+
+	/*
+	 * Find the lowest common scheduling domain covering the nodes of both
+	 * the CPU the task is currently running on and the target NUMA node.
+	 */
+	rcu_read_lock();
+	for_each_domain(env.src_cpu, sd) {
+		if (cpumask_test_cpu(node_cpu, sched_domain_span(sd))) {
+			/*
+			 * busy_idx is used for the load decision as it is the
+			 * same index used by the regular load balancer for an
+			 * active cpu.
+			 */
+			idx = sd->busy_idx;
+			imbalance_pct = sd->imbalance_pct;
+			break;
 		}
 	}
 	rcu_read_unlock();
 
-	return idlest_cpu;
+	if (WARN_ON_ONCE(idx == -1))
+		return 0;
+
+	/*
+	 * XXX the below is mostly nicked from wake_affine(); we should
+	 * see about sharing a bit if at all possible; also it might want
+	 * some per entity weight love.
+	 */
+	weight = p->se.load.weight;
+	env.src_stats.load = source_load(env.src_cpu, idx);
+	env.src_stats.eff_load = 100 + (imbalance_pct - 100) / 2;
+	env.src_stats.eff_load *= power_of(env.src_cpu);
+	env.src_stats.eff_load *= env.src_stats.load + effective_load(tg, env.src_cpu, -weight, -weight);
+
+	for_each_cpu(cpu, cpumask_of_node(env.dst_nid)) {
+		env.dst_cpu = cpu;
+		env.dst_stats.load = target_load(cpu, idx);
+
+		/* If the CPU is idle, use it */
+		if (!env.dst_stats.load) {
+			env.best_cpu = cpu;
+			goto migrate;
+		}
+
+		/* Otherwise check the target CPU load */
+		env.dst_stats.eff_load = 100;
+		env.dst_stats.eff_load *= power_of(cpu);
+		env.dst_stats.eff_load *= env.dst_stats.load + effective_load(tg, cpu, weight, weight);
+
+		/*
+		 * Destination is considered balanced if the destination CPU is
+		 * less loaded than the source CPU. Unfortunately there is a
+		 * risk that a task running on a lightly loaded CPU will not
+		 * migrate to its preferred node due to load imbalances.
+		 */
+		balanced = (env.dst_stats.eff_load <= env.src_stats.eff_load);
+		if (!balanced)
+			continue;
+
+		if (env.dst_stats.eff_load < env.best_load) {
+			env.best_load = env.dst_stats.eff_load;
+			env.best_cpu = cpu;
+		}
+	}
+
+migrate:
+	return migrate_task_to(p, env.best_cpu);
 }
 
 static void task_numa_placement(struct task_struct *p)
@@ -966,22 +1052,10 @@ static void task_numa_placement(struct task_struct *p)
 	 * the working set placement.
 	 */
 	if (max_faults && max_nid != p->numa_preferred_nid) {
-		int preferred_cpu;
-
-		/*
-		 * If the task is not on the preferred node then find the most
-		 * idle CPU to migrate to.
-		 */
-		preferred_cpu = task_cpu(p);
-		if (cpu_to_node(preferred_cpu) != max_nid) {
-			preferred_cpu = find_idlest_cpu_node(preferred_cpu,
-							     max_nid);
-		}
-
 		/* Update the preferred nid and migrate task if possible */
 		p->numa_preferred_nid = max_nid;
 		p->numa_migrate_seq = 1;
-		migrate_task_to(p, preferred_cpu);
+		task_numa_migrate(p);
 	}
 }
 
@@ -3292,7 +3366,7 @@ static long effective_load(struct task_group *tg, int cpu, long wl, long wg)
 {
 	struct sched_entity *se = tg->se[cpu];
 
-	if (!tg->parent)	/* the trivial, non-cgroup case */
+	if (!tg->parent || !wl)	/* the trivial, non-cgroup case */
 		return wl;
 
 	for_each_sched_entity(se) {
@@ -3345,8 +3419,7 @@ static long effective_load(struct task_group *tg, int cpu, long wl, long wg)
 }
 #else
 
-static inline unsigned long effective_load(struct task_group *tg, int cpu,
-		unsigned long wl, unsigned long wg)
+static long effective_load(struct task_group *tg, int cpu, long wl, long wg)
 {
 	return wl;
 }
-- 
cgit 


From 6b9a7460b6baf6c77fc3d23d927ddfc3f3f05bf3 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:11 +0100
Subject: sched/numa: Retry migration of tasks to CPU on a preferred node

When a preferred node is selected for a tasks there is an attempt to migrate
the task to a CPU there. This may fail in which case the task will only
migrate if the active load balancer takes action. This may never happen if
the conditions are not right. This patch will check at NUMA hinting fault
time if another attempt should be made to migrate the task. It will only
make an attempt once every five seconds.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-34-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/sched.h |  1 +
 kernel/sched/fair.c   | 30 +++++++++++++++++++++++-------
 2 files changed, 24 insertions(+), 7 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index d946195eec10..14251a8ff2ea 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1341,6 +1341,7 @@ struct task_struct {
 	int numa_migrate_seq;
 	unsigned int numa_scan_period;
 	unsigned int numa_scan_period_max;
+	unsigned long numa_migrate_retry;
 	u64 node_stamp;			/* migration stamp  */
 	struct callback_head numa_work;
 
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 51a760081193..f84ac3fb581b 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1011,6 +1011,23 @@ migrate:
 	return migrate_task_to(p, env.best_cpu);
 }
 
+/* Attempt to migrate a task to a CPU on the preferred node. */
+static void numa_migrate_preferred(struct task_struct *p)
+{
+	/* Success if task is already running on preferred CPU */
+	p->numa_migrate_retry = 0;
+	if (cpu_to_node(task_cpu(p)) == p->numa_preferred_nid)
+		return;
+
+	/* This task has no NUMA fault statistics yet */
+	if (unlikely(p->numa_preferred_nid == -1))
+		return;
+
+	/* Otherwise, try migrate to a CPU on the preferred node */
+	if (task_numa_migrate(p) != 0)
+		p->numa_migrate_retry = jiffies + HZ*5;
+}
+
 static void task_numa_placement(struct task_struct *p)
 {
 	int seq, nid, max_nid = -1;
@@ -1045,17 +1062,12 @@ static void task_numa_placement(struct task_struct *p)
 		}
 	}
 
-	/*
-	 * Record the preferred node as the node with the most faults,
-	 * requeue the task to be running on the idlest CPU on the
-	 * preferred node and reset the scanning rate to recheck
-	 * the working set placement.
-	 */
+	/* Preferred node as the node with the most faults */
 	if (max_faults && max_nid != p->numa_preferred_nid) {
 		/* Update the preferred nid and migrate task if possible */
 		p->numa_preferred_nid = max_nid;
 		p->numa_migrate_seq = 1;
-		task_numa_migrate(p);
+		numa_migrate_preferred(p);
 	}
 }
 
@@ -1111,6 +1123,10 @@ void task_numa_fault(int last_nidpid, int node, int pages, bool migrated)
 
 	task_numa_placement(p);
 
+	/* Retry task to preferred node migration if it previously failed */
+	if (p->numa_migrate_retry && time_after(jiffies, p->numa_migrate_retry))
+		numa_migrate_preferred(p);
+
 	p->numa_faults_buffer[task_faults_idx(node, priv)] += pages;
 }
 
-- 
cgit 


From 06ea5e035b4e66cc77790457a89fc7e368060c4b Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Mon, 7 Oct 2013 11:29:12 +0100
Subject: sched/numa: Increment numa_migrate_seq when task runs in correct
 location

When a task is already running on its preferred node, increment
numa_migrate_seq to indicate that the task is settled if migration is
temporarily disabled, and memory should migrate towards it.

Signed-off-by: Rik van Riel <riel@redhat.com>
[ Only increment migrate_seq if migration temporarily disabled. ]
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-35-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index f84ac3fb581b..de9b4d8eb853 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1016,8 +1016,16 @@ static void numa_migrate_preferred(struct task_struct *p)
 {
 	/* Success if task is already running on preferred CPU */
 	p->numa_migrate_retry = 0;
-	if (cpu_to_node(task_cpu(p)) == p->numa_preferred_nid)
+	if (cpu_to_node(task_cpu(p)) == p->numa_preferred_nid) {
+		/*
+		 * If migration is temporarily disabled due to a task migration
+		 * then re-enable it now as the task is running on its
+		 * preferred node and memory should migrate locally
+		 */
+		if (!p->numa_migrate_seq)
+			p->numa_migrate_seq++;
 		return;
+	}
 
 	/* This task has no NUMA fault statistics yet */
 	if (unlikely(p->numa_preferred_nid == -1))
-- 
cgit 


From 4591ce4f2d22dc9de7a6719161ce409b5fd1caac Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:13 +0100
Subject: sched/numa: Do not trap hinting faults for shared libraries

NUMA hinting faults will not migrate a shared executable page mapped by
multiple processes on the grounds that the data is probably in the CPU
cache already and the page may just bounce between tasks running on multipl
nodes. Even if the migration is avoided, there is still the overhead of
trapping the fault, updating the statistics, making scheduler placement
decisions based on the information etc. If we are never going to migrate
the page, it is overhead for no gain and worse a process may be placed on
a sub-optimal node for shared executable pages. This patch avoids trapping
faults for shared libraries entirely.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-36-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index de9b4d8eb853..fbc0c84a8a04 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1231,6 +1231,16 @@ void task_numa_work(struct callback_head *work)
 		if (!vma_migratable(vma) || !vma_policy_mof(p, vma))
 			continue;
 
+		/*
+		 * Shared library pages mapped by multiple processes are not
+		 * migrated as it is expected they are cache replicated. Avoid
+		 * hinting faults in read-only file-backed mappings or the vdso
+		 * as migrating the pages will be of marginal benefit.
+		 */
+		if (!vma->vm_mm ||
+		    (vma->vm_file && (vma->vm_flags & (VM_READ|VM_WRITE)) == (VM_READ)))
+			continue;
+
 		do {
 			start = max(start, vma->vm_start);
 			end = ALIGN(start + (pages << PAGE_SHIFT), HPAGE_SIZE);
-- 
cgit 


From 25cbbef1924299249756bc4030fcb2436c019813 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:14 +0100
Subject: mm: numa: Trap pmd hinting faults only if we would otherwise trap PTE
 faults

Base page PMD faulting is meant to batch handle NUMA hinting faults from
PTEs. However, even is no PTE faults would ever be handled within a
range the kernel still traps PMD hinting faults. This patch avoids the
overhead.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-37-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 mm/mprotect.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/mm/mprotect.c b/mm/mprotect.c
index f0b087d1069c..5aae39017d6d 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -146,6 +146,8 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
 
 	pmd = pmd_offset(pud, addr);
 	do {
+		unsigned long this_pages;
+
 		next = pmd_addr_end(addr, end);
 		if (pmd_trans_huge(*pmd)) {
 			if (next - addr != HPAGE_PMD_SIZE)
@@ -165,8 +167,9 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
 		}
 		if (pmd_none_or_clear_bad(pmd))
 			continue;
-		pages += change_pte_range(vma, pmd, addr, next, newprot,
+		this_pages = change_pte_range(vma, pmd, addr, next, newprot,
 				 dirty_accountable, prot_numa, &all_same_nidpid);
+		pages += this_pages;
 
 		/*
 		 * If we are changing protections for NUMA hinting faults then
@@ -174,7 +177,7 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
 		 * node. This allows a regular PMD to be handled as one fault
 		 * and effectively batches the taking of the PTL
 		 */
-		if (prot_numa && all_same_nidpid)
+		if (prot_numa && this_pages && all_same_nidpid)
 			change_pmd_protnuma(vma->vm_mm, addr, pmd);
 	} while (pmd++, addr = next, addr != end);
 
-- 
cgit 


From 1be0bd77c5dd7c903f46abf52f9a3650face3c1d Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 7 Oct 2013 11:29:15 +0100
Subject: stop_machine: Introduce stop_two_cpus()

Introduce stop_two_cpus() in order to allow controlled swapping of two
tasks. It repurposes the stop_machine() state machine but only stops
the two cpus which we can do with on-stack structures and avoid
machine wide synchronization issues.

The ordering of CPUs is important to avoid deadlocks. If unordered then
two cpus calling stop_two_cpus on each other simultaneously would attempt
to queue in the opposite order on each CPU causing an AB-BA style deadlock.
By always having the lowest number CPU doing the queueing of works, we can
guarantee that works are always queued in the same order, and deadlocks
are avoided.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
[ Implemented deadlock avoidance. ]
Signed-off-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Link: http://lkml.kernel.org/r/1381141781-10992-38-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/stop_machine.h |   1 +
 kernel/stop_machine.c        | 272 +++++++++++++++++++++++++++----------------
 2 files changed, 175 insertions(+), 98 deletions(-)

diff --git a/include/linux/stop_machine.h b/include/linux/stop_machine.h
index 3b5e910d14ca..d2abbdb8c6aa 100644
--- a/include/linux/stop_machine.h
+++ b/include/linux/stop_machine.h
@@ -28,6 +28,7 @@ struct cpu_stop_work {
 };
 
 int stop_one_cpu(unsigned int cpu, cpu_stop_fn_t fn, void *arg);
+int stop_two_cpus(unsigned int cpu1, unsigned int cpu2, cpu_stop_fn_t fn, void *arg);
 void stop_one_cpu_nowait(unsigned int cpu, cpu_stop_fn_t fn, void *arg,
 			 struct cpu_stop_work *work_buf);
 int stop_cpus(const struct cpumask *cpumask, cpu_stop_fn_t fn, void *arg);
diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
index c09f2955ae30..32a6c44d8f78 100644
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -115,6 +115,166 @@ int stop_one_cpu(unsigned int cpu, cpu_stop_fn_t fn, void *arg)
 	return done.executed ? done.ret : -ENOENT;
 }
 
+/* This controls the threads on each CPU. */
+enum multi_stop_state {
+	/* Dummy starting state for thread. */
+	MULTI_STOP_NONE,
+	/* Awaiting everyone to be scheduled. */
+	MULTI_STOP_PREPARE,
+	/* Disable interrupts. */
+	MULTI_STOP_DISABLE_IRQ,
+	/* Run the function */
+	MULTI_STOP_RUN,
+	/* Exit */
+	MULTI_STOP_EXIT,
+};
+
+struct multi_stop_data {
+	int			(*fn)(void *);
+	void			*data;
+	/* Like num_online_cpus(), but hotplug cpu uses us, so we need this. */
+	unsigned int		num_threads;
+	const struct cpumask	*active_cpus;
+
+	enum multi_stop_state	state;
+	atomic_t		thread_ack;
+};
+
+static void set_state(struct multi_stop_data *msdata,
+		      enum multi_stop_state newstate)
+{
+	/* Reset ack counter. */
+	atomic_set(&msdata->thread_ack, msdata->num_threads);
+	smp_wmb();
+	msdata->state = newstate;
+}
+
+/* Last one to ack a state moves to the next state. */
+static void ack_state(struct multi_stop_data *msdata)
+{
+	if (atomic_dec_and_test(&msdata->thread_ack))
+		set_state(msdata, msdata->state + 1);
+}
+
+/* This is the cpu_stop function which stops the CPU. */
+static int multi_cpu_stop(void *data)
+{
+	struct multi_stop_data *msdata = data;
+	enum multi_stop_state curstate = MULTI_STOP_NONE;
+	int cpu = smp_processor_id(), err = 0;
+	unsigned long flags;
+	bool is_active;
+
+	/*
+	 * When called from stop_machine_from_inactive_cpu(), irq might
+	 * already be disabled.  Save the state and restore it on exit.
+	 */
+	local_save_flags(flags);
+
+	if (!msdata->active_cpus)
+		is_active = cpu == cpumask_first(cpu_online_mask);
+	else
+		is_active = cpumask_test_cpu(cpu, msdata->active_cpus);
+
+	/* Simple state machine */
+	do {
+		/* Chill out and ensure we re-read multi_stop_state. */
+		cpu_relax();
+		if (msdata->state != curstate) {
+			curstate = msdata->state;
+			switch (curstate) {
+			case MULTI_STOP_DISABLE_IRQ:
+				local_irq_disable();
+				hard_irq_disable();
+				break;
+			case MULTI_STOP_RUN:
+				if (is_active)
+					err = msdata->fn(msdata->data);
+				break;
+			default:
+				break;
+			}
+			ack_state(msdata);
+		}
+	} while (curstate != MULTI_STOP_EXIT);
+
+	local_irq_restore(flags);
+	return err;
+}
+
+struct irq_cpu_stop_queue_work_info {
+	int cpu1;
+	int cpu2;
+	struct cpu_stop_work *work1;
+	struct cpu_stop_work *work2;
+};
+
+/*
+ * This function is always run with irqs and preemption disabled.
+ * This guarantees that both work1 and work2 get queued, before
+ * our local migrate thread gets the chance to preempt us.
+ */
+static void irq_cpu_stop_queue_work(void *arg)
+{
+	struct irq_cpu_stop_queue_work_info *info = arg;
+	cpu_stop_queue_work(info->cpu1, info->work1);
+	cpu_stop_queue_work(info->cpu2, info->work2);
+}
+
+/**
+ * stop_two_cpus - stops two cpus
+ * @cpu1: the cpu to stop
+ * @cpu2: the other cpu to stop
+ * @fn: function to execute
+ * @arg: argument to @fn
+ *
+ * Stops both the current and specified CPU and runs @fn on one of them.
+ *
+ * returns when both are completed.
+ */
+int stop_two_cpus(unsigned int cpu1, unsigned int cpu2, cpu_stop_fn_t fn, void *arg)
+{
+	int call_cpu;
+	struct cpu_stop_done done;
+	struct cpu_stop_work work1, work2;
+	struct irq_cpu_stop_queue_work_info call_args;
+	struct multi_stop_data msdata = {
+		.fn = fn,
+		.data = arg,
+		.num_threads = 2,
+		.active_cpus = cpumask_of(cpu1),
+	};
+
+	work1 = work2 = (struct cpu_stop_work){
+		.fn = multi_cpu_stop,
+		.arg = &msdata,
+		.done = &done
+	};
+
+	call_args = (struct irq_cpu_stop_queue_work_info){
+		.cpu1 = cpu1,
+		.cpu2 = cpu2,
+		.work1 = &work1,
+		.work2 = &work2,
+	};
+
+	cpu_stop_init_done(&done, 2);
+	set_state(&msdata, MULTI_STOP_PREPARE);
+
+	/*
+	 * Queuing needs to be done by the lowest numbered CPU, to ensure
+	 * that works are always queued in the same order on every CPU.
+	 * This prevents deadlocks.
+	 */
+	call_cpu = min(cpu1, cpu2);
+
+	smp_call_function_single(call_cpu, &irq_cpu_stop_queue_work,
+				 &call_args, 0);
+
+	wait_for_completion(&done.completion);
+	return done.executed ? done.ret : -ENOENT;
+}
+
 /**
  * stop_one_cpu_nowait - stop a cpu but don't wait for completion
  * @cpu: cpu to stop
@@ -359,98 +519,14 @@ early_initcall(cpu_stop_init);
 
 #ifdef CONFIG_STOP_MACHINE
 
-/* This controls the threads on each CPU. */
-enum stopmachine_state {
-	/* Dummy starting state for thread. */
-	STOPMACHINE_NONE,
-	/* Awaiting everyone to be scheduled. */
-	STOPMACHINE_PREPARE,
-	/* Disable interrupts. */
-	STOPMACHINE_DISABLE_IRQ,
-	/* Run the function */
-	STOPMACHINE_RUN,
-	/* Exit */
-	STOPMACHINE_EXIT,
-};
-
-struct stop_machine_data {
-	int			(*fn)(void *);
-	void			*data;
-	/* Like num_online_cpus(), but hotplug cpu uses us, so we need this. */
-	unsigned int		num_threads;
-	const struct cpumask	*active_cpus;
-
-	enum stopmachine_state	state;
-	atomic_t		thread_ack;
-};
-
-static void set_state(struct stop_machine_data *smdata,
-		      enum stopmachine_state newstate)
-{
-	/* Reset ack counter. */
-	atomic_set(&smdata->thread_ack, smdata->num_threads);
-	smp_wmb();
-	smdata->state = newstate;
-}
-
-/* Last one to ack a state moves to the next state. */
-static void ack_state(struct stop_machine_data *smdata)
-{
-	if (atomic_dec_and_test(&smdata->thread_ack))
-		set_state(smdata, smdata->state + 1);
-}
-
-/* This is the cpu_stop function which stops the CPU. */
-static int stop_machine_cpu_stop(void *data)
-{
-	struct stop_machine_data *smdata = data;
-	enum stopmachine_state curstate = STOPMACHINE_NONE;
-	int cpu = smp_processor_id(), err = 0;
-	unsigned long flags;
-	bool is_active;
-
-	/*
-	 * When called from stop_machine_from_inactive_cpu(), irq might
-	 * already be disabled.  Save the state and restore it on exit.
-	 */
-	local_save_flags(flags);
-
-	if (!smdata->active_cpus)
-		is_active = cpu == cpumask_first(cpu_online_mask);
-	else
-		is_active = cpumask_test_cpu(cpu, smdata->active_cpus);
-
-	/* Simple state machine */
-	do {
-		/* Chill out and ensure we re-read stopmachine_state. */
-		cpu_relax();
-		if (smdata->state != curstate) {
-			curstate = smdata->state;
-			switch (curstate) {
-			case STOPMACHINE_DISABLE_IRQ:
-				local_irq_disable();
-				hard_irq_disable();
-				break;
-			case STOPMACHINE_RUN:
-				if (is_active)
-					err = smdata->fn(smdata->data);
-				break;
-			default:
-				break;
-			}
-			ack_state(smdata);
-		}
-	} while (curstate != STOPMACHINE_EXIT);
-
-	local_irq_restore(flags);
-	return err;
-}
-
 int __stop_machine(int (*fn)(void *), void *data, const struct cpumask *cpus)
 {
-	struct stop_machine_data smdata = { .fn = fn, .data = data,
-					    .num_threads = num_online_cpus(),
-					    .active_cpus = cpus };
+	struct multi_stop_data msdata = {
+		.fn = fn,
+		.data = data,
+		.num_threads = num_online_cpus(),
+		.active_cpus = cpus,
+	};
 
 	if (!stop_machine_initialized) {
 		/*
@@ -461,7 +537,7 @@ int __stop_machine(int (*fn)(void *), void *data, const struct cpumask *cpus)
 		unsigned long flags;
 		int ret;
 
-		WARN_ON_ONCE(smdata.num_threads != 1);
+		WARN_ON_ONCE(msdata.num_threads != 1);
 
 		local_irq_save(flags);
 		hard_irq_disable();
@@ -472,8 +548,8 @@ int __stop_machine(int (*fn)(void *), void *data, const struct cpumask *cpus)
 	}
 
 	/* Set the initial state and stop all online cpus. */
-	set_state(&smdata, STOPMACHINE_PREPARE);
-	return stop_cpus(cpu_online_mask, stop_machine_cpu_stop, &smdata);
+	set_state(&msdata, MULTI_STOP_PREPARE);
+	return stop_cpus(cpu_online_mask, multi_cpu_stop, &msdata);
 }
 
 int stop_machine(int (*fn)(void *), void *data, const struct cpumask *cpus)
@@ -513,25 +589,25 @@ EXPORT_SYMBOL_GPL(stop_machine);
 int stop_machine_from_inactive_cpu(int (*fn)(void *), void *data,
 				  const struct cpumask *cpus)
 {
-	struct stop_machine_data smdata = { .fn = fn, .data = data,
+	struct multi_stop_data msdata = { .fn = fn, .data = data,
 					    .active_cpus = cpus };
 	struct cpu_stop_done done;
 	int ret;
 
 	/* Local CPU must be inactive and CPU hotplug in progress. */
 	BUG_ON(cpu_active(raw_smp_processor_id()));
-	smdata.num_threads = num_active_cpus() + 1;	/* +1 for local */
+	msdata.num_threads = num_active_cpus() + 1;	/* +1 for local */
 
 	/* No proper task established and can't sleep - busy wait for lock. */
 	while (!mutex_trylock(&stop_cpus_mutex))
 		cpu_relax();
 
 	/* Schedule work on other CPUs and execute directly for local CPU */
-	set_state(&smdata, STOPMACHINE_PREPARE);
+	set_state(&msdata, MULTI_STOP_PREPARE);
 	cpu_stop_init_done(&done, num_active_cpus());
-	queue_stop_cpus_work(cpu_active_mask, stop_machine_cpu_stop, &smdata,
+	queue_stop_cpus_work(cpu_active_mask, multi_cpu_stop, &msdata,
 			     &done);
-	ret = stop_machine_cpu_stop(&smdata);
+	ret = multi_cpu_stop(&msdata);
 
 	/* Busy wait for completion. */
 	while (!completion_done(&done.completion))
-- 
cgit 


From ac66f5477239ebd3c4e2cbf2f591ef387aa09884 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 7 Oct 2013 11:29:16 +0100
Subject: sched/numa: Introduce migrate_swap()

Use the new stop_two_cpus() to implement migrate_swap(), a function that
flips two tasks between their respective cpus.

I'm fairly sure there's a less crude way than employing the stop_two_cpus()
method, but everything I tried either got horribly fragile and/or complex. So
keep it simple for now.

The notable detail is how we 'migrate' tasks that aren't runnable
anymore. We'll make it appear like we migrated them before they went to
sleep. The sole difference is the previous cpu in the wakeup path, so we
override this.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Link: http://lkml.kernel.org/r/1381141781-10992-39-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/sched.h    |   2 +
 kernel/sched/core.c      | 106 ++++++++++++++++++++++++++++++++++++++++++++---
 kernel/sched/fair.c      |   3 +-
 kernel/sched/idle_task.c |   2 +-
 kernel/sched/rt.c        |   5 +--
 kernel/sched/sched.h     |   4 +-
 kernel/sched/stop_task.c |   2 +-
 7 files changed, 110 insertions(+), 14 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 14251a8ff2ea..b6619792bb13 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1043,6 +1043,8 @@ struct task_struct {
 	struct task_struct *last_wakee;
 	unsigned long wakee_flips;
 	unsigned long wakee_flip_decay_ts;
+
+	int wake_cpu;
 #endif
 	int on_rq;
 
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 9060a7f4e9ed..32a2b29c2610 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1013,6 +1013,102 @@ void set_task_cpu(struct task_struct *p, unsigned int new_cpu)
 	__set_task_cpu(p, new_cpu);
 }
 
+static void __migrate_swap_task(struct task_struct *p, int cpu)
+{
+	if (p->on_rq) {
+		struct rq *src_rq, *dst_rq;
+
+		src_rq = task_rq(p);
+		dst_rq = cpu_rq(cpu);
+
+		deactivate_task(src_rq, p, 0);
+		set_task_cpu(p, cpu);
+		activate_task(dst_rq, p, 0);
+		check_preempt_curr(dst_rq, p, 0);
+	} else {
+		/*
+		 * Task isn't running anymore; make it appear like we migrated
+		 * it before it went to sleep. This means on wakeup we make the
+		 * previous cpu our targer instead of where it really is.
+		 */
+		p->wake_cpu = cpu;
+	}
+}
+
+struct migration_swap_arg {
+	struct task_struct *src_task, *dst_task;
+	int src_cpu, dst_cpu;
+};
+
+static int migrate_swap_stop(void *data)
+{
+	struct migration_swap_arg *arg = data;
+	struct rq *src_rq, *dst_rq;
+	int ret = -EAGAIN;
+
+	src_rq = cpu_rq(arg->src_cpu);
+	dst_rq = cpu_rq(arg->dst_cpu);
+
+	double_rq_lock(src_rq, dst_rq);
+	if (task_cpu(arg->dst_task) != arg->dst_cpu)
+		goto unlock;
+
+	if (task_cpu(arg->src_task) != arg->src_cpu)
+		goto unlock;
+
+	if (!cpumask_test_cpu(arg->dst_cpu, tsk_cpus_allowed(arg->src_task)))
+		goto unlock;
+
+	if (!cpumask_test_cpu(arg->src_cpu, tsk_cpus_allowed(arg->dst_task)))
+		goto unlock;
+
+	__migrate_swap_task(arg->src_task, arg->dst_cpu);
+	__migrate_swap_task(arg->dst_task, arg->src_cpu);
+
+	ret = 0;
+
+unlock:
+	double_rq_unlock(src_rq, dst_rq);
+
+	return ret;
+}
+
+/*
+ * Cross migrate two tasks
+ */
+int migrate_swap(struct task_struct *cur, struct task_struct *p)
+{
+	struct migration_swap_arg arg;
+	int ret = -EINVAL;
+
+	get_online_cpus();
+
+	arg = (struct migration_swap_arg){
+		.src_task = cur,
+		.src_cpu = task_cpu(cur),
+		.dst_task = p,
+		.dst_cpu = task_cpu(p),
+	};
+
+	if (arg.src_cpu == arg.dst_cpu)
+		goto out;
+
+	if (!cpu_active(arg.src_cpu) || !cpu_active(arg.dst_cpu))
+		goto out;
+
+	if (!cpumask_test_cpu(arg.dst_cpu, tsk_cpus_allowed(arg.src_task)))
+		goto out;
+
+	if (!cpumask_test_cpu(arg.src_cpu, tsk_cpus_allowed(arg.dst_task)))
+		goto out;
+
+	ret = stop_two_cpus(arg.dst_cpu, arg.src_cpu, migrate_swap_stop, &arg);
+
+out:
+	put_online_cpus();
+	return ret;
+}
+
 struct migration_arg {
 	struct task_struct *task;
 	int dest_cpu;
@@ -1232,9 +1328,9 @@ out:
  * The caller (fork, wakeup) owns p->pi_lock, ->cpus_allowed is stable.
  */
 static inline
-int select_task_rq(struct task_struct *p, int sd_flags, int wake_flags)
+int select_task_rq(struct task_struct *p, int cpu, int sd_flags, int wake_flags)
 {
-	int cpu = p->sched_class->select_task_rq(p, sd_flags, wake_flags);
+	cpu = p->sched_class->select_task_rq(p, cpu, sd_flags, wake_flags);
 
 	/*
 	 * In order not to call set_task_cpu() on a blocking task we need
@@ -1518,7 +1614,7 @@ try_to_wake_up(struct task_struct *p, unsigned int state, int wake_flags)
 	if (p->sched_class->task_waking)
 		p->sched_class->task_waking(p);
 
-	cpu = select_task_rq(p, SD_BALANCE_WAKE, wake_flags);
+	cpu = select_task_rq(p, p->wake_cpu, SD_BALANCE_WAKE, wake_flags);
 	if (task_cpu(p) != cpu) {
 		wake_flags |= WF_MIGRATED;
 		set_task_cpu(p, cpu);
@@ -1752,7 +1848,7 @@ void wake_up_new_task(struct task_struct *p)
 	 *  - cpus_allowed can change in the fork path
 	 *  - any previously selected cpu might disappear through hotplug
 	 */
-	set_task_cpu(p, select_task_rq(p, SD_BALANCE_FORK, 0));
+	set_task_cpu(p, select_task_rq(p, task_cpu(p), SD_BALANCE_FORK, 0));
 #endif
 
 	/* Initialize new task's runnable average */
@@ -2080,7 +2176,7 @@ void sched_exec(void)
 	int dest_cpu;
 
 	raw_spin_lock_irqsave(&p->pi_lock, flags);
-	dest_cpu = p->sched_class->select_task_rq(p, SD_BALANCE_EXEC, 0);
+	dest_cpu = p->sched_class->select_task_rq(p, task_cpu(p), SD_BALANCE_EXEC, 0);
 	if (dest_cpu == smp_processor_id())
 		goto unlock;
 
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index fbc0c84a8a04..b1e5061287ab 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3706,11 +3706,10 @@ done:
  * preempt must be disabled.
  */
 static int
-select_task_rq_fair(struct task_struct *p, int sd_flag, int wake_flags)
+select_task_rq_fair(struct task_struct *p, int prev_cpu, int sd_flag, int wake_flags)
 {
 	struct sched_domain *tmp, *affine_sd = NULL, *sd = NULL;
 	int cpu = smp_processor_id();
-	int prev_cpu = task_cpu(p);
 	int new_cpu = cpu;
 	int want_affine = 0;
 	int sync = wake_flags & WF_SYNC;
diff --git a/kernel/sched/idle_task.c b/kernel/sched/idle_task.c
index d8da01008d39..516c3d9ceea1 100644
--- a/kernel/sched/idle_task.c
+++ b/kernel/sched/idle_task.c
@@ -9,7 +9,7 @@
 
 #ifdef CONFIG_SMP
 static int
-select_task_rq_idle(struct task_struct *p, int sd_flag, int flags)
+select_task_rq_idle(struct task_struct *p, int cpu, int sd_flag, int flags)
 {
 	return task_cpu(p); /* IDLE tasks as never migrated */
 }
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index ceebfba0a1dd..e9304cdc26fe 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -1169,13 +1169,10 @@ static void yield_task_rt(struct rq *rq)
 static int find_lowest_rq(struct task_struct *task);
 
 static int
-select_task_rq_rt(struct task_struct *p, int sd_flag, int flags)
+select_task_rq_rt(struct task_struct *p, int cpu, int sd_flag, int flags)
 {
 	struct task_struct *curr;
 	struct rq *rq;
-	int cpu;
-
-	cpu = task_cpu(p);
 
 	if (p->nr_cpus_allowed == 1)
 		goto out;
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 66458c902d84..4dc92d016aef 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -558,6 +558,7 @@ static inline u64 rq_clock_task(struct rq *rq)
 
 #ifdef CONFIG_NUMA_BALANCING
 extern int migrate_task_to(struct task_struct *p, int cpu);
+extern int migrate_swap(struct task_struct *, struct task_struct *);
 static inline void task_numa_free(struct task_struct *p)
 {
 	kfree(p->numa_faults);
@@ -736,6 +737,7 @@ static inline void __set_task_cpu(struct task_struct *p, unsigned int cpu)
 	 */
 	smp_wmb();
 	task_thread_info(p)->cpu = cpu;
+	p->wake_cpu = cpu;
 #endif
 }
 
@@ -991,7 +993,7 @@ struct sched_class {
 	void (*put_prev_task) (struct rq *rq, struct task_struct *p);
 
 #ifdef CONFIG_SMP
-	int  (*select_task_rq)(struct task_struct *p, int sd_flag, int flags);
+	int  (*select_task_rq)(struct task_struct *p, int task_cpu, int sd_flag, int flags);
 	void (*migrate_task_rq)(struct task_struct *p, int next_cpu);
 
 	void (*pre_schedule) (struct rq *this_rq, struct task_struct *task);
diff --git a/kernel/sched/stop_task.c b/kernel/sched/stop_task.c
index e08fbeeb54b9..47197de8abd9 100644
--- a/kernel/sched/stop_task.c
+++ b/kernel/sched/stop_task.c
@@ -11,7 +11,7 @@
 
 #ifdef CONFIG_SMP
 static int
-select_task_rq_stop(struct task_struct *p, int sd_flag, int flags)
+select_task_rq_stop(struct task_struct *p, int cpu, int sd_flag, int flags)
 {
 	return task_cpu(p); /* stop tasks as never migrate */
 }
-- 
cgit 


From 75dab1bfbbaa54c4e8cdca0f46b4ed65492559c6 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Tue, 8 Oct 2013 22:35:37 +0200
Subject: spi: spi-au1550: replace platform_driver_probe to support deferred
 probing

Subsystems like pinctrl and gpio rightfully make use of deferred probing at
core level. Now, deferred drivers won't be retried if they don't have a .probe
function specified in the driver struct. Fix this driver to have that, so the
devices it supports won't get lost in a deferred probe.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-au1550.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-au1550.c b/drivers/spi/spi-au1550.c
index 1d00d9b397dd..313dd49b541d 100644
--- a/drivers/spi/spi-au1550.c
+++ b/drivers/spi/spi-au1550.c
@@ -985,6 +985,7 @@ static int au1550_spi_remove(struct platform_device *pdev)
 MODULE_ALIAS("platform:au1550-spi");
 
 static struct platform_driver au1550_spi_drv = {
+	.probe = au1550_spi_probe,
 	.remove = au1550_spi_remove,
 	.driver = {
 		.name = "au1550-spi",
@@ -1004,7 +1005,7 @@ static int __init au1550_spi_init(void)
 			printk(KERN_ERR "au1550-spi: cannot add memory"
 					"dbdma device\n");
 	}
-	return platform_driver_probe(&au1550_spi_drv, au1550_spi_probe);
+	return platform_driver_register(&au1550_spi_drv);
 }
 module_init(au1550_spi_init);
 
-- 
cgit 


From 6a009e8d886be476d7e6ea978c27c9517c449d3c Mon Sep 17 00:00:00 2001
From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Tue, 8 Oct 2013 20:49:59 +0200
Subject: spi: efm32: drop unused struct and fix size check
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The variable efm32_spi_pdata_default origins from an earlier revision of
the patch introducing the driver, its use was dropped because of review
comments but I forgot to also drop the variable itself.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-efm32.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/spi/spi-efm32.c b/drivers/spi/spi-efm32.c
index 5ce61e5f9770..d4d3cc534792 100644
--- a/drivers/spi/spi-efm32.c
+++ b/drivers/spi/spi-efm32.c
@@ -280,10 +280,6 @@ static irqreturn_t efm32_spi_txirq(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-static const struct efm32_spi_pdata efm32_spi_pdata_default = {
-	.location = 1,
-};
-
 static u32 efm32_spi_get_configured_location(struct efm32_spi_ddata *ddata)
 {
 	u32 reg = efm32_spi_read32(ddata, REG_ROUTE);
@@ -387,7 +383,7 @@ static int efm32_spi_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	if (resource_size(res) < 60) {
+	if (resource_size(res) < 0x60) {
 		ret = -EINVAL;
 		dev_err(&pdev->dev, "memory resource too small\n");
 		goto err;
-- 
cgit 


From 010c51e189c6a37da2908d27c93e73584f6e8fa8 Mon Sep 17 00:00:00 2001
From: Sonic Zhang <sonic.zhang@analog.com>
Date: Tue, 8 Oct 2013 15:30:21 +0800
Subject: pinctrl: pinctrl-adi2: Remove nested lock+irqsave that resue flags.

Also avoid use NULL pointer in error message.

v2-changes:
- use port pinter only after checking

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-adi2.c | 40 ++++++++++++++++++++++------------------
 1 file changed, 22 insertions(+), 18 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-adi2.c b/drivers/pinctrl/pinctrl-adi2.c
index 8089fda00427..a74e6f4ffbd7 100644
--- a/drivers/pinctrl/pinctrl-adi2.c
+++ b/drivers/pinctrl/pinctrl-adi2.c
@@ -247,7 +247,7 @@ static void adi_gpio_ack_irq(struct irq_data *d)
 	unsigned pintbit = hwirq_to_pintbit(port, d->hwirq);
 
 	spin_lock_irqsave(&port->lock, flags);
-	spin_lock_irqsave(&port->pint->lock, flags);
+	spin_lock(&port->pint->lock);
 
 	if (irqd_get_trigger_type(d) == IRQ_TYPE_EDGE_BOTH) {
 		if (readl(&regs->invert_set) & pintbit)
@@ -258,7 +258,7 @@ static void adi_gpio_ack_irq(struct irq_data *d)
 
 	writel(pintbit, &regs->request);
 
-	spin_unlock_irqrestore(&port->pint->lock, flags);
+	spin_unlock(&port->pint->lock);
 	spin_unlock_irqrestore(&port->lock, flags);
 }
 
@@ -270,7 +270,7 @@ static void adi_gpio_mask_ack_irq(struct irq_data *d)
 	unsigned pintbit = hwirq_to_pintbit(port, d->hwirq);
 
 	spin_lock_irqsave(&port->lock, flags);
-	spin_lock_irqsave(&port->pint->lock, flags);
+	spin_lock(&port->pint->lock);
 
 	if (irqd_get_trigger_type(d) == IRQ_TYPE_EDGE_BOTH) {
 		if (readl(&regs->invert_set) & pintbit)
@@ -282,7 +282,7 @@ static void adi_gpio_mask_ack_irq(struct irq_data *d)
 	writel(pintbit, &regs->request);
 	writel(pintbit, &regs->mask_clear);
 
-	spin_unlock_irqrestore(&port->pint->lock, flags);
+	spin_unlock(&port->pint->lock);
 	spin_unlock_irqrestore(&port->lock, flags);
 }
 
@@ -293,11 +293,11 @@ static void adi_gpio_mask_irq(struct irq_data *d)
 	struct gpio_pint_regs *regs = port->pint->regs;
 
 	spin_lock_irqsave(&port->lock, flags);
-	spin_lock_irqsave(&port->pint->lock, flags);
+	spin_lock(&port->pint->lock);
 
 	writel(hwirq_to_pintbit(port, d->hwirq), &regs->mask_clear);
 
-	spin_unlock_irqrestore(&port->pint->lock, flags);
+	spin_unlock(&port->pint->lock);
 	spin_unlock_irqrestore(&port->lock, flags);
 }
 
@@ -308,11 +308,11 @@ static void adi_gpio_unmask_irq(struct irq_data *d)
 	struct gpio_pint_regs *regs = port->pint->regs;
 
 	spin_lock_irqsave(&port->lock, flags);
-	spin_lock_irqsave(&port->pint->lock, flags);
+	spin_lock(&port->pint->lock);
 
 	writel(hwirq_to_pintbit(port, d->hwirq), &regs->mask_set);
 
-	spin_unlock_irqrestore(&port->pint->lock, flags);
+	spin_unlock(&port->pint->lock);
 	spin_unlock_irqrestore(&port->lock, flags);
 }
 
@@ -320,15 +320,17 @@ static unsigned int adi_gpio_irq_startup(struct irq_data *d)
 {
 	unsigned long flags;
 	struct gpio_port *port = irq_data_get_irq_chip_data(d);
-	struct gpio_pint_regs *regs = port->pint->regs;
+	struct gpio_pint_regs *regs;
 
 	if (!port) {
-		dev_err(port->dev, "GPIO IRQ %d :Not exist\n", d->irq);
+		pr_err("GPIO IRQ %d :Not exist\n", d->irq);
 		return -ENODEV;
 	}
 
+	regs = port->pint->regs;
+
 	spin_lock_irqsave(&port->lock, flags);
-	spin_lock_irqsave(&port->pint->lock, flags);
+	spin_lock(&port->pint->lock);
 
 	port_setup(port, d->hwirq, true);
 	writew(BIT(d->hwirq), &port->regs->dir_clear);
@@ -336,7 +338,7 @@ static unsigned int adi_gpio_irq_startup(struct irq_data *d)
 
 	writel(hwirq_to_pintbit(port, d->hwirq), &regs->mask_set);
 
-	spin_unlock_irqrestore(&port->pint->lock, flags);
+	spin_unlock(&port->pint->lock);
 	spin_unlock_irqrestore(&port->lock, flags);
 
 	return 0;
@@ -349,11 +351,11 @@ static void adi_gpio_irq_shutdown(struct irq_data *d)
 	struct gpio_pint_regs *regs = port->pint->regs;
 
 	spin_lock_irqsave(&port->lock, flags);
-	spin_lock_irqsave(&port->pint->lock, flags);
+	spin_lock(&port->pint->lock);
 
 	writel(hwirq_to_pintbit(port, d->hwirq), &regs->mask_clear);
 
-	spin_unlock_irqrestore(&port->pint->lock, flags);
+	spin_unlock(&port->pint->lock);
 	spin_unlock_irqrestore(&port->lock, flags);
 }
 
@@ -361,21 +363,23 @@ static int adi_gpio_irq_type(struct irq_data *d, unsigned int type)
 {
 	unsigned long flags;
 	struct gpio_port *port = irq_data_get_irq_chip_data(d);
-	struct gpio_pint_regs *pint_regs = port->pint->regs;
+	struct gpio_pint_regs *pint_regs;
 	unsigned pintmask;
 	unsigned int irq = d->irq;
 	int ret = 0;
 	char buf[16];
 
 	if (!port) {
-		dev_err(port->dev, "GPIO IRQ %d :Not exist\n", irq);
+		pr_err("GPIO IRQ %d :Not exist\n", d->irq);
 		return -ENODEV;
 	}
 
+	pint_regs = port->pint->regs;
+
 	pintmask = hwirq_to_pintbit(port, d->hwirq);
 
 	spin_lock_irqsave(&port->lock, flags);
-	spin_lock_irqsave(&port->pint->lock, flags);
+	spin_lock(&port->pint->lock);
 
 	/* In case of interrupt autodetect, set irq type to edge sensitive. */
 	if (type == IRQ_TYPE_PROBE)
@@ -416,7 +420,7 @@ static int adi_gpio_irq_type(struct irq_data *d, unsigned int type)
 	}
 
 out:
-	spin_unlock_irqrestore(&port->pint->lock, flags);
+	spin_unlock(&port->pint->lock);
 	spin_unlock_irqrestore(&port->lock, flags);
 
 	return ret;
-- 
cgit 


From db9371b853e7cebce93f0775215ef297b8d0bf93 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Tue, 8 Oct 2013 22:35:38 +0200
Subject: spi: spi-bfin5xx: replace platform_driver_probe to support deferred
 probing

Subsystems like pinctrl and gpio rightfully make use of deferred probing at
core level. Now, deferred drivers won't be retried if they don't have a .probe
function specified in the driver struct. Fix this driver to have that, so the
devices it supports won't get lost in a deferred probe.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-bfin5xx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-bfin5xx.c b/drivers/spi/spi-bfin5xx.c
index 1e2894315bb0..5284f158d4e6 100644
--- a/drivers/spi/spi-bfin5xx.c
+++ b/drivers/spi/spi-bfin5xx.c
@@ -1464,12 +1464,13 @@ static struct platform_driver bfin_spi_driver = {
 		.owner	= THIS_MODULE,
 		.pm	= BFIN_SPI_PM_OPS,
 	},
+	.probe		= bfin_spi_probe,
 	.remove		= bfin_spi_remove,
 };
 
 static int __init bfin_spi_init(void)
 {
-	return platform_driver_probe(&bfin_spi_driver, bfin_spi_probe);
+	return platform_driver_register(&bfin_spi_driver);
 }
 subsys_initcall(bfin_spi_init);
 
-- 
cgit 


From 93e9c900102aa2e9b10ec4758b441c8b6e53daf3 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Tue, 8 Oct 2013 22:35:39 +0200
Subject: spi: spi-omap-uwire: replace platform_driver_probe to support
 deferred probing

Subsystems like pinctrl and gpio rightfully make use of deferred probing at
core level. Now, deferred drivers won't be retried if they don't have a .probe
function specified in the driver struct. Fix this driver to have that, so the
devices it supports won't get lost in a deferred probe.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-omap-uwire.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-omap-uwire.c b/drivers/spi/spi-omap-uwire.c
index a6a8f0961750..9313fd3b413d 100644
--- a/drivers/spi/spi-omap-uwire.c
+++ b/drivers/spi/spi-omap-uwire.c
@@ -557,7 +557,8 @@ static struct platform_driver uwire_driver = {
 		.name		= "omap_uwire",
 		.owner		= THIS_MODULE,
 	},
-	.remove		= uwire_remove,
+	.probe = uwire_probe,
+	.remove = uwire_remove,
 	// suspend ... unuse ck
 	// resume ... use ck
 };
@@ -579,7 +580,7 @@ static int __init omap_uwire_init(void)
 		omap_writel(val | 0x00AAA000, OMAP7XX_IO_CONF_9);
 	}
 
-	return platform_driver_probe(&uwire_driver, uwire_probe);
+	return platform_driver_register(&uwire_driver);
 }
 
 static void __exit omap_uwire_exit(void)
-- 
cgit 


From d3224ed140dc440c43e1da607b7685635e8064a6 Mon Sep 17 00:00:00 2001
From: Sonic Zhang <sonic.zhang@analog.com>
Date: Tue, 8 Oct 2013 15:31:21 +0800
Subject: pinctrl: pinctrl-adi2: disable IRQ when setting value

GPIO output value should be set after the GPIO interrupt is disabled.
Use BIT macro as well.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
[Edited commit message]
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-adi2.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-adi2.c b/drivers/pinctrl/pinctrl-adi2.c
index a74e6f4ffbd7..7a39562c3e42 100644
--- a/drivers/pinctrl/pinctrl-adi2.c
+++ b/drivers/pinctrl/pinctrl-adi2.c
@@ -766,9 +766,9 @@ static void adi_gpio_set_value(struct gpio_chip *chip, unsigned offset,
 	spin_lock_irqsave(&port->lock, flags);
 
 	if (value)
-		writew(1 << offset, &regs->data_set);
+		writew(BIT(offset), &regs->data_set);
 	else
-		writew(1 << offset, &regs->data_clear);
+		writew(BIT(offset), &regs->data_clear);
 
 	spin_unlock_irqrestore(&port->lock, flags);
 }
@@ -780,12 +780,14 @@ static int adi_gpio_direction_output(struct gpio_chip *chip, unsigned offset,
 	struct gpio_port_t *regs = port->regs;
 	unsigned long flags;
 
-	adi_gpio_set_value(chip, offset, value);
-
 	spin_lock_irqsave(&port->lock, flags);
 
-	writew(readw(&regs->inen) & ~(1 << offset), &regs->inen);
-	writew(1 << offset, &regs->dir_set);
+	writew(readw(&regs->inen) & ~BIT(offset), &regs->inen);
+	if (value)
+		writew(BIT(offset), &regs->data_set);
+	else
+		writew(BIT(offset), &regs->data_clear);
+	writew(BIT(offset), &regs->dir_set);
 
 	spin_unlock_irqrestore(&port->lock, flags);
 
-- 
cgit 


From 1d82d0c2682ec88a84aaae40c830bddf6ab09482 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Tue, 8 Oct 2013 22:35:41 +0200
Subject: spi: spi-txx9: replace platform_driver_probe to support deferred
 probing

Subsystems like pinctrl and gpio rightfully make use of deferred probing at
core level. Now, deferred drivers won't be retried if they don't have a .probe
function specified in the driver struct. Fix this driver to have that, so the
devices it supports won't get lost in a deferred probe.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-txx9.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-txx9.c b/drivers/spi/spi-txx9.c
index 7c6d15766c72..c67a1b866f4f 100644
--- a/drivers/spi/spi-txx9.c
+++ b/drivers/spi/spi-txx9.c
@@ -440,6 +440,7 @@ static int txx9spi_remove(struct platform_device *dev)
 MODULE_ALIAS("platform:spi_txx9");
 
 static struct platform_driver txx9spi_driver = {
+	.probe = txx9spi_probe,
 	.remove = txx9spi_remove,
 	.driver = {
 		.name = "spi_txx9",
@@ -449,7 +450,7 @@ static struct platform_driver txx9spi_driver = {
 
 static int __init txx9spi_init(void)
 {
-	return platform_driver_probe(&txx9spi_driver, txx9spi_probe);
+	return platform_driver_register(&txx9spi_driver);
 }
 subsys_initcall(txx9spi_init);
 
-- 
cgit 


From 212e560112598cfa8a3061237dd9db5f2252e48c Mon Sep 17 00:00:00 2001
From: Steffen Klassert <steffen.klassert@secunet.com>
Date: Mon, 19 Aug 2013 08:07:34 +0200
Subject: ipv6: Add a receive path hook for vti6 in xfrm6_mode_tunnel.

Add a receive path hook for the IPsec vritual tunnel interface.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
 include/net/xfrm.h           |  2 ++
 net/ipv6/xfrm6_mode_tunnel.c | 69 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 71 insertions(+)

diff --git a/include/net/xfrm.h b/include/net/xfrm.h
index b8a9ed849801..6b82fdf4ba71 100644
--- a/include/net/xfrm.h
+++ b/include/net/xfrm.h
@@ -1508,6 +1508,8 @@ int xfrm4_tunnel_deregister(struct xfrm_tunnel *handler, unsigned short family);
 void xfrm4_local_error(struct sk_buff *skb, u32 mtu);
 int xfrm4_mode_tunnel_input_register(struct xfrm_tunnel_notifier *handler);
 int xfrm4_mode_tunnel_input_deregister(struct xfrm_tunnel_notifier *handler);
+int xfrm6_mode_tunnel_input_register(struct xfrm_tunnel_notifier *handler);
+int xfrm6_mode_tunnel_input_deregister(struct xfrm_tunnel_notifier *handler);
 int xfrm6_extract_header(struct sk_buff *skb);
 int xfrm6_extract_input(struct xfrm_state *x, struct sk_buff *skb);
 int xfrm6_rcv_spi(struct sk_buff *skb, int nexthdr, __be32 spi);
diff --git a/net/ipv6/xfrm6_mode_tunnel.c b/net/ipv6/xfrm6_mode_tunnel.c
index 4770d515c2c8..cb04f7a16b5e 100644
--- a/net/ipv6/xfrm6_mode_tunnel.c
+++ b/net/ipv6/xfrm6_mode_tunnel.c
@@ -18,6 +18,65 @@
 #include <net/ipv6.h>
 #include <net/xfrm.h>
 
+/* Informational hook. The decap is still done here. */
+static struct xfrm_tunnel_notifier __rcu *rcv_notify_handlers __read_mostly;
+static DEFINE_MUTEX(xfrm6_mode_tunnel_input_mutex);
+
+int xfrm6_mode_tunnel_input_register(struct xfrm_tunnel_notifier *handler)
+{
+	struct xfrm_tunnel_notifier __rcu **pprev;
+	struct xfrm_tunnel_notifier *t;
+	int ret = -EEXIST;
+	int priority = handler->priority;
+
+	mutex_lock(&xfrm6_mode_tunnel_input_mutex);
+
+	for (pprev = &rcv_notify_handlers;
+	     (t = rcu_dereference_protected(*pprev,
+	     lockdep_is_held(&xfrm6_mode_tunnel_input_mutex))) != NULL;
+	     pprev = &t->next) {
+		if (t->priority > priority)
+			break;
+		if (t->priority == priority)
+			goto err;
+
+	}
+
+	handler->next = *pprev;
+	rcu_assign_pointer(*pprev, handler);
+
+	ret = 0;
+
+err:
+	mutex_unlock(&xfrm6_mode_tunnel_input_mutex);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(xfrm6_mode_tunnel_input_register);
+
+int xfrm6_mode_tunnel_input_deregister(struct xfrm_tunnel_notifier *handler)
+{
+	struct xfrm_tunnel_notifier __rcu **pprev;
+	struct xfrm_tunnel_notifier *t;
+	int ret = -ENOENT;
+
+	mutex_lock(&xfrm6_mode_tunnel_input_mutex);
+	for (pprev = &rcv_notify_handlers;
+	     (t = rcu_dereference_protected(*pprev,
+	     lockdep_is_held(&xfrm6_mode_tunnel_input_mutex))) != NULL;
+	     pprev = &t->next) {
+		if (t == handler) {
+			*pprev = handler->next;
+			ret = 0;
+			break;
+		}
+	}
+	mutex_unlock(&xfrm6_mode_tunnel_input_mutex);
+	synchronize_net();
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(xfrm6_mode_tunnel_input_deregister);
+
 static inline void ipip6_ecn_decapsulate(struct sk_buff *skb)
 {
 	const struct ipv6hdr *outer_iph = ipv6_hdr(skb);
@@ -63,8 +122,15 @@ static int xfrm6_mode_tunnel_output(struct xfrm_state *x, struct sk_buff *skb)
 	return 0;
 }
 
+#define for_each_input_rcu(head, handler)	\
+	for (handler = rcu_dereference(head);	\
+	     handler != NULL;			\
+	     handler = rcu_dereference(handler->next))
+
+
 static int xfrm6_mode_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
 {
+	struct xfrm_tunnel_notifier *handler;
 	int err = -EINVAL;
 
 	if (XFRM_MODE_SKB_CB(skb)->protocol != IPPROTO_IPV6)
@@ -72,6 +138,9 @@ static int xfrm6_mode_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
 	if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
 		goto out;
 
+	for_each_input_rcu(rcv_notify_handlers, handler)
+		handler->handler(skb);
+
 	err = skb_unclone(skb, GFP_ATOMIC);
 	if (err)
 		goto out;
-- 
cgit 


From 6b5a7c66ce396242e504dbf3d9d5c06d8b1aa488 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 9 Oct 2013 17:22:32 +0530
Subject: ALSA: usb-audio: Use module_usb_driver

module_usb_driver makes code simpler by removing the boilerplate.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/card.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/sound/usb/card.c b/sound/usb/card.c
index 9d9de8d53469..d979050e6a6a 100644
--- a/sound/usb/card.c
+++ b/sound/usb/card.c
@@ -751,15 +751,4 @@ static struct usb_driver usb_audio_driver = {
 	.supports_autosuspend = 1,
 };
 
-static int __init snd_usb_audio_init(void)
-{
-	return usb_register(&usb_audio_driver);
-}
-
-static void __exit snd_usb_audio_cleanup(void)
-{
-	usb_deregister(&usb_audio_driver);
-}
-
-module_init(snd_usb_audio_init);
-module_exit(snd_usb_audio_cleanup);
+module_usb_driver(usb_audio_driver);
-- 
cgit 


From d1c30115d06e255a7ba69c7b63129a92c2f34de6 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Wed, 9 Oct 2013 14:52:11 +0800
Subject: pinctrl: imx: update fsl,pins description in bindings doc

While commit e164153 (pinctrl: imx: move hard-coding data into device
tree) moves to use DTC macro for imx pinctrl device tree setting, it
changes the semantics of fsl,pins without updating the bindings doc
properly.  Let's update the fsl,pins description to stop confusing
people.

While at it, the example in the document is updated, and the stale TODO
gets removed.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 .../bindings/pinctrl/fsl,imx-pinctrl.txt           | 37 +++++++++++-----------
 1 file changed, 18 insertions(+), 19 deletions(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt
index 3a7caf7a744a..9fde25f1401a 100644
--- a/Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/fsl,imx-pinctrl.txt
@@ -22,11 +22,12 @@ Required properties for iomux controller:
   Please refer to each fsl,<soc>-pinctrl.txt binding doc for supported SoCs.
 
 Required properties for pin configuration node:
-- fsl,pins: two integers array, represents a group of pins mux and config
-  setting. The format is fsl,pins = <PIN_FUNC_ID CONFIG>, PIN_FUNC_ID is a
-  pin working on a specific function, which consists of a tuple of
-  <mux_reg conf_reg input_reg mux_val input_val>.  CONFIG is the pad setting
-  value like pull-up on this pin.
+- fsl,pins: each entry consists of 6 integers and represents the mux and config
+  setting for one pin. The first 5 integers <mux_reg conf_reg input_reg mux_val
+  input_val> are specified using a PIN_FUNC_ID macro, which can be found in
+  imx*-pinfunc.h under device tree source folder. The last integer CONFIG is
+  the pad setting value like pull-up on this pin. And that's why fsl,pins entry
+  looks like <PIN_FUNC_ID CONFIG> in the example below.
 
 Bits used for CONFIG:
 NO_PAD_CTL(1 << 31): indicate this pin does not need config.
@@ -72,17 +73,18 @@ iomuxc@020e0000 {
 	/* shared pinctrl settings */
 	usdhc4 {
 		pinctrl_usdhc4_1: usdhc4grp-1 {
-			fsl,pins = <1386 0x17059	/* MX6Q_PAD_SD4_CMD__USDHC4_CMD */
-				    1392 0x10059	/* MX6Q_PAD_SD4_CLK__USDHC4_CLK	*/
-				    1462 0x17059	/* MX6Q_PAD_SD4_DAT0__USDHC4_DAT0 */
-				    1470 0x17059	/* MX6Q_PAD_SD4_DAT1__USDHC4_DAT1 */
-				    1478 0x17059	/* MX6Q_PAD_SD4_DAT2__USDHC4_DAT2 */
-				    1486 0x17059	/* MX6Q_PAD_SD4_DAT3__USDHC4_DAT3 */
-				    1493 0x17059	/* MX6Q_PAD_SD4_DAT4__USDHC4_DAT4 */
-				    1501 0x17059	/* MX6Q_PAD_SD4_DAT5__USDHC4_DAT5 */
-				    1509 0x17059	/* MX6Q_PAD_SD4_DAT6__USDHC4_DAT6 */
-				    1517 0x17059>;	/* MX6Q_PAD_SD4_DAT7__USDHC4_DAT7 */
-		};
+			fsl,pins = <
+				MX6QDL_PAD_SD4_CMD__SD4_CMD    0x17059
+				MX6QDL_PAD_SD4_CLK__SD4_CLK    0x10059
+				MX6QDL_PAD_SD4_DAT0__SD4_DATA0 0x17059
+				MX6QDL_PAD_SD4_DAT1__SD4_DATA1 0x17059
+				MX6QDL_PAD_SD4_DAT2__SD4_DATA2 0x17059
+				MX6QDL_PAD_SD4_DAT3__SD4_DATA3 0x17059
+				MX6QDL_PAD_SD4_DAT4__SD4_DATA4 0x17059
+				MX6QDL_PAD_SD4_DAT5__SD4_DATA5 0x17059
+				MX6QDL_PAD_SD4_DAT6__SD4_DATA6 0x17059
+				MX6QDL_PAD_SD4_DAT7__SD4_DATA7 0x17059
+			>;
 	};
 	....
 };
@@ -90,6 +92,3 @@ Refer to the IOMUXC controller chapter in imx6q datasheet,
 0x17059 means enable hysteresis, 47KOhm Pull Up, 50Mhz speed,
 80Ohm driver strength and Fast Slew Rate.
 User should refer to each SoC spec to set the correct value.
-
-TODO: when dtc macro support is available, we can change above raw data
-to dt macro which can get better readability in dts file.
-- 
cgit 


From fb13c7ee0ed387bd6bec4b4024a4d49b1bd504f1 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:17 +0100
Subject: sched/numa: Use a system-wide search to find swap/migration
 candidates

This patch implements a system-wide search for swap/migration candidates
based on total NUMA hinting faults. It has a balance limit, however it
doesn't properly consider total node balance.

In the old scheme a task selected a preferred node based on the highest
number of private faults recorded on the node. In this scheme, the preferred
node is based on the total number of faults. If the preferred node for a
task changes then task_numa_migrate will search the whole system looking
for tasks to swap with that would improve both the overall compute
balance and minimise the expected number of remote NUMA hinting faults.

Not there is no guarantee that the node the source task is placed
on by task_numa_migrate() has any relationship to the newly selected
task->numa_preferred_nid due to compute overloading.

Signed-off-by: Mel Gorman <mgorman@suse.de>
[ Do not swap with tasks that cannot run on source cpu]
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
[ Fixed compiler warning on UP. ]
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-40-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/core.c  |   4 +
 kernel/sched/fair.c  | 253 ++++++++++++++++++++++++++++++++++++---------------
 kernel/sched/sched.h |  13 +++
 3 files changed, 199 insertions(+), 71 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 32a2b29c2610..1fe59da280e3 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -5236,6 +5236,7 @@ static void destroy_sched_domains(struct sched_domain *sd, int cpu)
 DEFINE_PER_CPU(struct sched_domain *, sd_llc);
 DEFINE_PER_CPU(int, sd_llc_size);
 DEFINE_PER_CPU(int, sd_llc_id);
+DEFINE_PER_CPU(struct sched_domain *, sd_numa);
 
 static void update_top_cache_domain(int cpu)
 {
@@ -5252,6 +5253,9 @@ static void update_top_cache_domain(int cpu)
 	rcu_assign_pointer(per_cpu(sd_llc, cpu), sd);
 	per_cpu(sd_llc_size, cpu) = size;
 	per_cpu(sd_llc_id, cpu) = id;
+
+	sd = lowest_flag_domain(cpu, SD_NUMA);
+	rcu_assign_pointer(per_cpu(sd_numa, cpu), sd);
 }
 
 /*
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index b1e5061287ab..1422765d4b86 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -681,6 +681,8 @@ static u64 sched_vslice(struct cfs_rq *cfs_rq, struct sched_entity *se)
 }
 
 #ifdef CONFIG_SMP
+static unsigned long task_h_load(struct task_struct *p);
+
 static inline void __update_task_entity_contrib(struct sched_entity *se);
 
 /* Give new task start runnable values to heavy its load in infant time */
@@ -906,12 +908,40 @@ static unsigned long target_load(int cpu, int type);
 static unsigned long power_of(int cpu);
 static long effective_load(struct task_group *tg, int cpu, long wl, long wg);
 
+/* Cached statistics for all CPUs within a node */
 struct numa_stats {
+	unsigned long nr_running;
 	unsigned long load;
-	s64 eff_load;
-	unsigned long faults;
+
+	/* Total compute capacity of CPUs on a node */
+	unsigned long power;
+
+	/* Approximate capacity in terms of runnable tasks on a node */
+	unsigned long capacity;
+	int has_capacity;
 };
 
+/*
+ * XXX borrowed from update_sg_lb_stats
+ */
+static void update_numa_stats(struct numa_stats *ns, int nid)
+{
+	int cpu;
+
+	memset(ns, 0, sizeof(*ns));
+	for_each_cpu(cpu, cpumask_of_node(nid)) {
+		struct rq *rq = cpu_rq(cpu);
+
+		ns->nr_running += rq->nr_running;
+		ns->load += weighted_cpuload(cpu);
+		ns->power += power_of(cpu);
+	}
+
+	ns->load = (ns->load * SCHED_POWER_SCALE) / ns->power;
+	ns->capacity = DIV_ROUND_CLOSEST(ns->power, SCHED_POWER_SCALE);
+	ns->has_capacity = (ns->nr_running < ns->capacity);
+}
+
 struct task_numa_env {
 	struct task_struct *p;
 
@@ -920,95 +950,178 @@ struct task_numa_env {
 
 	struct numa_stats src_stats, dst_stats;
 
-	unsigned long best_load;
+	int imbalance_pct, idx;
+
+	struct task_struct *best_task;
+	long best_imp;
 	int best_cpu;
 };
 
+static void task_numa_assign(struct task_numa_env *env,
+			     struct task_struct *p, long imp)
+{
+	if (env->best_task)
+		put_task_struct(env->best_task);
+	if (p)
+		get_task_struct(p);
+
+	env->best_task = p;
+	env->best_imp = imp;
+	env->best_cpu = env->dst_cpu;
+}
+
+/*
+ * This checks if the overall compute and NUMA accesses of the system would
+ * be improved if the source tasks was migrated to the target dst_cpu taking
+ * into account that it might be best if task running on the dst_cpu should
+ * be exchanged with the source task
+ */
+static void task_numa_compare(struct task_numa_env *env, long imp)
+{
+	struct rq *src_rq = cpu_rq(env->src_cpu);
+	struct rq *dst_rq = cpu_rq(env->dst_cpu);
+	struct task_struct *cur;
+	long dst_load, src_load;
+	long load;
+
+	rcu_read_lock();
+	cur = ACCESS_ONCE(dst_rq->curr);
+	if (cur->pid == 0) /* idle */
+		cur = NULL;
+
+	/*
+	 * "imp" is the fault differential for the source task between the
+	 * source and destination node. Calculate the total differential for
+	 * the source task and potential destination task. The more negative
+	 * the value is, the more rmeote accesses that would be expected to
+	 * be incurred if the tasks were swapped.
+	 */
+	if (cur) {
+		/* Skip this swap candidate if cannot move to the source cpu */
+		if (!cpumask_test_cpu(env->src_cpu, tsk_cpus_allowed(cur)))
+			goto unlock;
+
+		imp += task_faults(cur, env->src_nid) -
+		       task_faults(cur, env->dst_nid);
+	}
+
+	if (imp < env->best_imp)
+		goto unlock;
+
+	if (!cur) {
+		/* Is there capacity at our destination? */
+		if (env->src_stats.has_capacity &&
+		    !env->dst_stats.has_capacity)
+			goto unlock;
+
+		goto balance;
+	}
+
+	/* Balance doesn't matter much if we're running a task per cpu */
+	if (src_rq->nr_running == 1 && dst_rq->nr_running == 1)
+		goto assign;
+
+	/*
+	 * In the overloaded case, try and keep the load balanced.
+	 */
+balance:
+	dst_load = env->dst_stats.load;
+	src_load = env->src_stats.load;
+
+	/* XXX missing power terms */
+	load = task_h_load(env->p);
+	dst_load += load;
+	src_load -= load;
+
+	if (cur) {
+		load = task_h_load(cur);
+		dst_load -= load;
+		src_load += load;
+	}
+
+	/* make src_load the smaller */
+	if (dst_load < src_load)
+		swap(dst_load, src_load);
+
+	if (src_load * env->imbalance_pct < dst_load * 100)
+		goto unlock;
+
+assign:
+	task_numa_assign(env, cur, imp);
+unlock:
+	rcu_read_unlock();
+}
+
 static int task_numa_migrate(struct task_struct *p)
 {
-	int node_cpu = cpumask_first(cpumask_of_node(p->numa_preferred_nid));
 	struct task_numa_env env = {
 		.p = p,
+
 		.src_cpu = task_cpu(p),
 		.src_nid = cpu_to_node(task_cpu(p)),
-		.dst_cpu = node_cpu,
-		.dst_nid = p->numa_preferred_nid,
-		.best_load = ULONG_MAX,
-		.best_cpu = task_cpu(p),
+
+		.imbalance_pct = 112,
+
+		.best_task = NULL,
+		.best_imp = 0,
+		.best_cpu = -1
 	};
 	struct sched_domain *sd;
-	int cpu;
-	struct task_group *tg = task_group(p);
-	unsigned long weight;
-	bool balanced;
-	int imbalance_pct, idx = -1;
+	unsigned long faults;
+	int nid, cpu, ret;
 
 	/*
-	 * Find the lowest common scheduling domain covering the nodes of both
-	 * the CPU the task is currently running on and the target NUMA node.
+	 * Pick the lowest SD_NUMA domain, as that would have the smallest
+	 * imbalance and would be the first to start moving tasks about.
+	 *
+	 * And we want to avoid any moving of tasks about, as that would create
+	 * random movement of tasks -- counter the numa conditions we're trying
+	 * to satisfy here.
 	 */
 	rcu_read_lock();
-	for_each_domain(env.src_cpu, sd) {
-		if (cpumask_test_cpu(node_cpu, sched_domain_span(sd))) {
-			/*
-			 * busy_idx is used for the load decision as it is the
-			 * same index used by the regular load balancer for an
-			 * active cpu.
-			 */
-			idx = sd->busy_idx;
-			imbalance_pct = sd->imbalance_pct;
-			break;
-		}
-	}
+	sd = rcu_dereference(per_cpu(sd_numa, env.src_cpu));
+	env.imbalance_pct = 100 + (sd->imbalance_pct - 100) / 2;
 	rcu_read_unlock();
 
-	if (WARN_ON_ONCE(idx == -1))
-		return 0;
+	faults = task_faults(p, env.src_nid);
+	update_numa_stats(&env.src_stats, env.src_nid);
 
-	/*
-	 * XXX the below is mostly nicked from wake_affine(); we should
-	 * see about sharing a bit if at all possible; also it might want
-	 * some per entity weight love.
-	 */
-	weight = p->se.load.weight;
-	env.src_stats.load = source_load(env.src_cpu, idx);
-	env.src_stats.eff_load = 100 + (imbalance_pct - 100) / 2;
-	env.src_stats.eff_load *= power_of(env.src_cpu);
-	env.src_stats.eff_load *= env.src_stats.load + effective_load(tg, env.src_cpu, -weight, -weight);
-
-	for_each_cpu(cpu, cpumask_of_node(env.dst_nid)) {
-		env.dst_cpu = cpu;
-		env.dst_stats.load = target_load(cpu, idx);
-
-		/* If the CPU is idle, use it */
-		if (!env.dst_stats.load) {
-			env.best_cpu = cpu;
-			goto migrate;
-		}
+	/* Find an alternative node with relatively better statistics */
+	for_each_online_node(nid) {
+		long imp;
 
-		/* Otherwise check the target CPU load */
-		env.dst_stats.eff_load = 100;
-		env.dst_stats.eff_load *= power_of(cpu);
-		env.dst_stats.eff_load *= env.dst_stats.load + effective_load(tg, cpu, weight, weight);
+		if (nid == env.src_nid)
+			continue;
 
-		/*
-		 * Destination is considered balanced if the destination CPU is
-		 * less loaded than the source CPU. Unfortunately there is a
-		 * risk that a task running on a lightly loaded CPU will not
-		 * migrate to its preferred node due to load imbalances.
-		 */
-		balanced = (env.dst_stats.eff_load <= env.src_stats.eff_load);
-		if (!balanced)
+		/* Only consider nodes that recorded more faults */
+		imp = task_faults(p, nid) - faults;
+		if (imp < 0)
 			continue;
 
-		if (env.dst_stats.eff_load < env.best_load) {
-			env.best_load = env.dst_stats.eff_load;
-			env.best_cpu = cpu;
+		env.dst_nid = nid;
+		update_numa_stats(&env.dst_stats, env.dst_nid);
+		for_each_cpu(cpu, cpumask_of_node(nid)) {
+			/* Skip this CPU if the source task cannot migrate */
+			if (!cpumask_test_cpu(cpu, tsk_cpus_allowed(p)))
+				continue;
+
+			env.dst_cpu = cpu;
+			task_numa_compare(&env, imp);
 		}
 	}
 
-migrate:
-	return migrate_task_to(p, env.best_cpu);
+	/* No better CPU than the current one was found. */
+	if (env.best_cpu == -1)
+		return -EAGAIN;
+
+	if (env.best_task == NULL) {
+		int ret = migrate_task_to(p, env.best_cpu);
+		return ret;
+	}
+
+	ret = migrate_swap(p, env.best_task);
+	put_task_struct(env.best_task);
+	return ret;
 }
 
 /* Attempt to migrate a task to a CPU on the preferred node. */
@@ -1050,7 +1163,7 @@ static void task_numa_placement(struct task_struct *p)
 
 	/* Find the node with the highest number of faults */
 	for_each_online_node(nid) {
-		unsigned long faults;
+		unsigned long faults = 0;
 		int priv, i;
 
 		for (priv = 0; priv < 2; priv++) {
@@ -1060,10 +1173,10 @@ static void task_numa_placement(struct task_struct *p)
 			p->numa_faults[i] >>= 1;
 			p->numa_faults[i] += p->numa_faults_buffer[i];
 			p->numa_faults_buffer[i] = 0;
+
+			faults += p->numa_faults[i];
 		}
 
-		/* Find maximum private faults */
-		faults = p->numa_faults[task_faults_idx(nid, 1)];
 		if (faults > max_faults) {
 			max_faults = faults;
 			max_nid = nid;
@@ -4455,8 +4568,6 @@ static int move_one_task(struct lb_env *env)
 	return 0;
 }
 
-static unsigned long task_h_load(struct task_struct *p);
-
 static const unsigned int sched_nr_migrate_break = 32;
 
 /*
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 4dc92d016aef..691e96964dcc 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -610,9 +610,22 @@ static inline struct sched_domain *highest_flag_domain(int cpu, int flag)
 	return hsd;
 }
 
+static inline struct sched_domain *lowest_flag_domain(int cpu, int flag)
+{
+	struct sched_domain *sd;
+
+	for_each_domain(cpu, sd) {
+		if (sd->flags & flag)
+			break;
+	}
+
+	return sd;
+}
+
 DECLARE_PER_CPU(struct sched_domain *, sd_llc);
 DECLARE_PER_CPU(int, sd_llc_size);
 DECLARE_PER_CPU(int, sd_llc_id);
+DECLARE_PER_CPU(struct sched_domain *, sd_numa);
 
 struct sched_group_power {
 	atomic_t ref;
-- 
cgit 


From 2c8a50aa873a7e1d6cc0913362051ff9912dc6ca Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:18 +0100
Subject: sched/numa: Favor placing a task on the preferred node

A tasks preferred node is selected based on the number of faults
recorded for a node but the actual task_numa_migate() conducts a global
search regardless of the preferred nid. This patch checks if the
preferred nid has capacity and if so, searches for a CPU within that
node. This avoids a global search when the preferred node is not
overloaded.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-41-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 54 ++++++++++++++++++++++++++++++++++-------------------
 1 file changed, 35 insertions(+), 19 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 1422765d4b86..09aac90df89e 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1052,6 +1052,20 @@ unlock:
 	rcu_read_unlock();
 }
 
+static void task_numa_find_cpu(struct task_numa_env *env, long imp)
+{
+	int cpu;
+
+	for_each_cpu(cpu, cpumask_of_node(env->dst_nid)) {
+		/* Skip this CPU if the source task cannot migrate */
+		if (!cpumask_test_cpu(cpu, tsk_cpus_allowed(env->p)))
+			continue;
+
+		env->dst_cpu = cpu;
+		task_numa_compare(env, imp);
+	}
+}
+
 static int task_numa_migrate(struct task_struct *p)
 {
 	struct task_numa_env env = {
@@ -1068,7 +1082,8 @@ static int task_numa_migrate(struct task_struct *p)
 	};
 	struct sched_domain *sd;
 	unsigned long faults;
-	int nid, cpu, ret;
+	int nid, ret;
+	long imp;
 
 	/*
 	 * Pick the lowest SD_NUMA domain, as that would have the smallest
@@ -1085,28 +1100,29 @@ static int task_numa_migrate(struct task_struct *p)
 
 	faults = task_faults(p, env.src_nid);
 	update_numa_stats(&env.src_stats, env.src_nid);
+	env.dst_nid = p->numa_preferred_nid;
+	imp = task_faults(env.p, env.dst_nid) - faults;
+	update_numa_stats(&env.dst_stats, env.dst_nid);
 
-	/* Find an alternative node with relatively better statistics */
-	for_each_online_node(nid) {
-		long imp;
-
-		if (nid == env.src_nid)
-			continue;
-
-		/* Only consider nodes that recorded more faults */
-		imp = task_faults(p, nid) - faults;
-		if (imp < 0)
-			continue;
+	/*
+	 * If the preferred nid has capacity then use it. Otherwise find an
+	 * alternative node with relatively better statistics.
+	 */
+	if (env.dst_stats.has_capacity) {
+		task_numa_find_cpu(&env, imp);
+	} else {
+		for_each_online_node(nid) {
+			if (nid == env.src_nid || nid == p->numa_preferred_nid)
+				continue;
 
-		env.dst_nid = nid;
-		update_numa_stats(&env.dst_stats, env.dst_nid);
-		for_each_cpu(cpu, cpumask_of_node(nid)) {
-			/* Skip this CPU if the source task cannot migrate */
-			if (!cpumask_test_cpu(cpu, tsk_cpus_allowed(p)))
+			/* Only consider nodes that recorded more faults */
+			imp = task_faults(env.p, nid) - faults;
+			if (imp < 0)
 				continue;
 
-			env.dst_cpu = cpu;
-			task_numa_compare(&env, imp);
+			env.dst_nid = nid;
+			update_numa_stats(&env.dst_stats, env.dst_nid);
+			task_numa_find_cpu(&env, imp);
 		}
 	}
 
-- 
cgit 


From e1dda8a797b59d7ec4b17e393152ec3273a552d5 Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Mon, 7 Oct 2013 11:29:19 +0100
Subject: sched/numa: Fix placement of workloads spread across multiple nodes

The load balancer will spread workloads across multiple NUMA nodes,
in order to balance the load on the system. This means that sometimes
a task's preferred node has available capacity, but moving the task
there will not succeed, because that would create too large an imbalance.

In that case, other NUMA nodes need to be considered.

Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-42-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 09aac90df89e..aa561c8dc899 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1104,13 +1104,12 @@ static int task_numa_migrate(struct task_struct *p)
 	imp = task_faults(env.p, env.dst_nid) - faults;
 	update_numa_stats(&env.dst_stats, env.dst_nid);
 
-	/*
-	 * If the preferred nid has capacity then use it. Otherwise find an
-	 * alternative node with relatively better statistics.
-	 */
-	if (env.dst_stats.has_capacity) {
+	/* If the preferred nid has capacity, try to use it. */
+	if (env.dst_stats.has_capacity)
 		task_numa_find_cpu(&env, imp);
-	} else {
+
+	/* No space available on the preferred nid. Look elsewhere. */
+	if (env.best_cpu == -1) {
 		for_each_online_node(nid) {
 			if (nid == env.src_nid || nid == p->numa_preferred_nid)
 				continue;
-- 
cgit 


From 90572890d202527c366aa9489b32404e88a7c020 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 7 Oct 2013 11:29:20 +0100
Subject: mm: numa: Change page last {nid,pid} into {cpu,pid}

Change the per page last fault tracking to use cpu,pid instead of
nid,pid. This will allow us to try and lookup the alternate task more
easily. Note that even though it is the cpu that is store in the page
flags that the mpol_misplaced decision is still based on the node.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1381141781-10992-43-git-send-email-mgorman@suse.de
[ Fixed build failure on 32-bit systems. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/mm.h                | 90 ++++++++++++++++++++++-----------------
 include/linux/mm_types.h          |  4 +-
 include/linux/page-flags-layout.h | 22 +++++-----
 kernel/bounds.c                   |  4 ++
 kernel/sched/fair.c               |  6 +--
 mm/huge_memory.c                  |  8 ++--
 mm/memory.c                       | 16 +++----
 mm/mempolicy.c                    | 16 ++++---
 mm/migrate.c                      |  4 +-
 mm/mm_init.c                      | 18 ++++----
 mm/mmzone.c                       | 14 +++---
 mm/mprotect.c                     | 28 ++++++------
 mm/page_alloc.c                   |  4 +-
 13 files changed, 125 insertions(+), 109 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index bb412ce2a8b5..ce464cd4777e 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -581,11 +581,11 @@ static inline pte_t maybe_mkwrite(pte_t pte, struct vm_area_struct *vma)
  * sets it, so none of the operations on it need to be atomic.
  */
 
-/* Page flags: | [SECTION] | [NODE] | ZONE | [LAST_NIDPID] | ... | FLAGS | */
+/* Page flags: | [SECTION] | [NODE] | ZONE | [LAST_CPUPID] | ... | FLAGS | */
 #define SECTIONS_PGOFF		((sizeof(unsigned long)*8) - SECTIONS_WIDTH)
 #define NODES_PGOFF		(SECTIONS_PGOFF - NODES_WIDTH)
 #define ZONES_PGOFF		(NODES_PGOFF - ZONES_WIDTH)
-#define LAST_NIDPID_PGOFF	(ZONES_PGOFF - LAST_NIDPID_WIDTH)
+#define LAST_CPUPID_PGOFF	(ZONES_PGOFF - LAST_CPUPID_WIDTH)
 
 /*
  * Define the bit shifts to access each section.  For non-existent
@@ -595,7 +595,7 @@ static inline pte_t maybe_mkwrite(pte_t pte, struct vm_area_struct *vma)
 #define SECTIONS_PGSHIFT	(SECTIONS_PGOFF * (SECTIONS_WIDTH != 0))
 #define NODES_PGSHIFT		(NODES_PGOFF * (NODES_WIDTH != 0))
 #define ZONES_PGSHIFT		(ZONES_PGOFF * (ZONES_WIDTH != 0))
-#define LAST_NIDPID_PGSHIFT	(LAST_NIDPID_PGOFF * (LAST_NIDPID_WIDTH != 0))
+#define LAST_CPUPID_PGSHIFT	(LAST_CPUPID_PGOFF * (LAST_CPUPID_WIDTH != 0))
 
 /* NODE:ZONE or SECTION:ZONE is used to ID a zone for the buddy allocator */
 #ifdef NODE_NOT_IN_PAGE_FLAGS
@@ -617,7 +617,7 @@ static inline pte_t maybe_mkwrite(pte_t pte, struct vm_area_struct *vma)
 #define ZONES_MASK		((1UL << ZONES_WIDTH) - 1)
 #define NODES_MASK		((1UL << NODES_WIDTH) - 1)
 #define SECTIONS_MASK		((1UL << SECTIONS_WIDTH) - 1)
-#define LAST_NIDPID_MASK	((1UL << LAST_NIDPID_WIDTH) - 1)
+#define LAST_CPUPID_MASK	((1UL << LAST_CPUPID_WIDTH) - 1)
 #define ZONEID_MASK		((1UL << ZONEID_SHIFT) - 1)
 
 static inline enum zone_type page_zonenum(const struct page *page)
@@ -661,96 +661,106 @@ static inline int page_to_nid(const struct page *page)
 #endif
 
 #ifdef CONFIG_NUMA_BALANCING
-static inline int nid_pid_to_nidpid(int nid, int pid)
+static inline int cpu_pid_to_cpupid(int cpu, int pid)
 {
-	return ((nid & LAST__NID_MASK) << LAST__PID_SHIFT) | (pid & LAST__PID_MASK);
+	return ((cpu & LAST__CPU_MASK) << LAST__PID_SHIFT) | (pid & LAST__PID_MASK);
 }
 
-static inline int nidpid_to_pid(int nidpid)
+static inline int cpupid_to_pid(int cpupid)
 {
-	return nidpid & LAST__PID_MASK;
+	return cpupid & LAST__PID_MASK;
 }
 
-static inline int nidpid_to_nid(int nidpid)
+static inline int cpupid_to_cpu(int cpupid)
 {
-	return (nidpid >> LAST__PID_SHIFT) & LAST__NID_MASK;
+	return (cpupid >> LAST__PID_SHIFT) & LAST__CPU_MASK;
 }
 
-static inline bool nidpid_pid_unset(int nidpid)
+static inline int cpupid_to_nid(int cpupid)
 {
-	return nidpid_to_pid(nidpid) == (-1 & LAST__PID_MASK);
+	return cpu_to_node(cpupid_to_cpu(cpupid));
 }
 
-static inline bool nidpid_nid_unset(int nidpid)
+static inline bool cpupid_pid_unset(int cpupid)
 {
-	return nidpid_to_nid(nidpid) == (-1 & LAST__NID_MASK);
+	return cpupid_to_pid(cpupid) == (-1 & LAST__PID_MASK);
 }
 
-#ifdef LAST_NIDPID_NOT_IN_PAGE_FLAGS
-static inline int page_nidpid_xchg_last(struct page *page, int nid)
+static inline bool cpupid_cpu_unset(int cpupid)
 {
-	return xchg(&page->_last_nidpid, nid);
+	return cpupid_to_cpu(cpupid) == (-1 & LAST__CPU_MASK);
 }
 
-static inline int page_nidpid_last(struct page *page)
+#ifdef LAST_CPUPID_NOT_IN_PAGE_FLAGS
+static inline int page_cpupid_xchg_last(struct page *page, int cpupid)
 {
-	return page->_last_nidpid;
+	return xchg(&page->_last_cpupid, cpupid);
 }
-static inline void page_nidpid_reset_last(struct page *page)
+
+static inline int page_cpupid_last(struct page *page)
+{
+	return page->_last_cpupid;
+}
+static inline void page_cpupid_reset_last(struct page *page)
 {
-	page->_last_nidpid = -1;
+	page->_last_cpupid = -1;
 }
 #else
-static inline int page_nidpid_last(struct page *page)
+static inline int page_cpupid_last(struct page *page)
 {
-	return (page->flags >> LAST_NIDPID_PGSHIFT) & LAST_NIDPID_MASK;
+	return (page->flags >> LAST_CPUPID_PGSHIFT) & LAST_CPUPID_MASK;
 }
 
-extern int page_nidpid_xchg_last(struct page *page, int nidpid);
+extern int page_cpupid_xchg_last(struct page *page, int cpupid);
 
-static inline void page_nidpid_reset_last(struct page *page)
+static inline void page_cpupid_reset_last(struct page *page)
 {
-	int nidpid = (1 << LAST_NIDPID_SHIFT) - 1;
+	int cpupid = (1 << LAST_CPUPID_SHIFT) - 1;
 
-	page->flags &= ~(LAST_NIDPID_MASK << LAST_NIDPID_PGSHIFT);
-	page->flags |= (nidpid & LAST_NIDPID_MASK) << LAST_NIDPID_PGSHIFT;
+	page->flags &= ~(LAST_CPUPID_MASK << LAST_CPUPID_PGSHIFT);
+	page->flags |= (cpupid & LAST_CPUPID_MASK) << LAST_CPUPID_PGSHIFT;
 }
-#endif /* LAST_NIDPID_NOT_IN_PAGE_FLAGS */
-#else
-static inline int page_nidpid_xchg_last(struct page *page, int nidpid)
+#endif /* LAST_CPUPID_NOT_IN_PAGE_FLAGS */
+#else /* !CONFIG_NUMA_BALANCING */
+static inline int page_cpupid_xchg_last(struct page *page, int cpupid)
 {
-	return page_to_nid(page);
+	return page_to_nid(page); /* XXX */
 }
 
-static inline int page_nidpid_last(struct page *page)
+static inline int page_cpupid_last(struct page *page)
 {
-	return page_to_nid(page);
+	return page_to_nid(page); /* XXX */
 }
 
-static inline int nidpid_to_nid(int nidpid)
+static inline int cpupid_to_nid(int cpupid)
 {
 	return -1;
 }
 
-static inline int nidpid_to_pid(int nidpid)
+static inline int cpupid_to_pid(int cpupid)
 {
 	return -1;
 }
 
-static inline int nid_pid_to_nidpid(int nid, int pid)
+static inline int cpupid_to_cpu(int cpupid)
 {
 	return -1;
 }
 
-static inline bool nidpid_pid_unset(int nidpid)
+static inline int cpu_pid_to_cpupid(int nid, int pid)
+{
+	return -1;
+}
+
+static inline bool cpupid_pid_unset(int cpupid)
 {
 	return 1;
 }
 
-static inline void page_nidpid_reset_last(struct page *page)
+static inline void page_cpupid_reset_last(struct page *page)
 {
 }
-#endif
+#endif /* CONFIG_NUMA_BALANCING */
 
 static inline struct zone *page_zone(const struct page *page)
 {
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 38a902a6d1e3..a30f9ca66557 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -174,8 +174,8 @@ struct page {
 	void *shadow;
 #endif
 
-#ifdef LAST_NIDPID_NOT_IN_PAGE_FLAGS
-	int _last_nidpid;
+#ifdef LAST_CPUPID_NOT_IN_PAGE_FLAGS
+	int _last_cpupid;
 #endif
 }
 /*
diff --git a/include/linux/page-flags-layout.h b/include/linux/page-flags-layout.h
index 02bc9184f16b..da523661500a 100644
--- a/include/linux/page-flags-layout.h
+++ b/include/linux/page-flags-layout.h
@@ -39,9 +39,9 @@
  * lookup is necessary.
  *
  * No sparsemem or sparsemem vmemmap: |       NODE     | ZONE |             ... | FLAGS |
- *      " plus space for last_nidpid: |       NODE     | ZONE | LAST_NIDPID ... | FLAGS |
+ *      " plus space for last_cpupid: |       NODE     | ZONE | LAST_CPUPID ... | FLAGS |
  * classic sparse with space for node:| SECTION | NODE | ZONE |             ... | FLAGS |
- *      " plus space for last_nidpid: | SECTION | NODE | ZONE | LAST_NIDPID ... | FLAGS |
+ *      " plus space for last_cpupid: | SECTION | NODE | ZONE | LAST_CPUPID ... | FLAGS |
  * classic sparse no space for node:  | SECTION |     ZONE    | ... | FLAGS |
  */
 #if defined(CONFIG_SPARSEMEM) && !defined(CONFIG_SPARSEMEM_VMEMMAP)
@@ -65,18 +65,18 @@
 #define LAST__PID_SHIFT 8
 #define LAST__PID_MASK  ((1 << LAST__PID_SHIFT)-1)
 
-#define LAST__NID_SHIFT NODES_SHIFT
-#define LAST__NID_MASK  ((1 << LAST__NID_SHIFT)-1)
+#define LAST__CPU_SHIFT NR_CPUS_BITS
+#define LAST__CPU_MASK  ((1 << LAST__CPU_SHIFT)-1)
 
-#define LAST_NIDPID_SHIFT (LAST__PID_SHIFT+LAST__NID_SHIFT)
+#define LAST_CPUPID_SHIFT (LAST__PID_SHIFT+LAST__CPU_SHIFT)
 #else
-#define LAST_NIDPID_SHIFT 0
+#define LAST_CPUPID_SHIFT 0
 #endif
 
-#if SECTIONS_WIDTH+ZONES_WIDTH+NODES_SHIFT+LAST_NIDPID_SHIFT <= BITS_PER_LONG - NR_PAGEFLAGS
-#define LAST_NIDPID_WIDTH LAST_NIDPID_SHIFT
+#if SECTIONS_WIDTH+ZONES_WIDTH+NODES_SHIFT+LAST_CPUPID_SHIFT <= BITS_PER_LONG - NR_PAGEFLAGS
+#define LAST_CPUPID_WIDTH LAST_CPUPID_SHIFT
 #else
-#define LAST_NIDPID_WIDTH 0
+#define LAST_CPUPID_WIDTH 0
 #endif
 
 /*
@@ -87,8 +87,8 @@
 #define NODE_NOT_IN_PAGE_FLAGS
 #endif
 
-#if defined(CONFIG_NUMA_BALANCING) && LAST_NIDPID_WIDTH == 0
-#define LAST_NIDPID_NOT_IN_PAGE_FLAGS
+#if defined(CONFIG_NUMA_BALANCING) && LAST_CPUPID_WIDTH == 0
+#define LAST_CPUPID_NOT_IN_PAGE_FLAGS
 #endif
 
 #endif /* _LINUX_PAGE_FLAGS_LAYOUT */
diff --git a/kernel/bounds.c b/kernel/bounds.c
index 0c9b862292b2..e8ca97b5c386 100644
--- a/kernel/bounds.c
+++ b/kernel/bounds.c
@@ -10,6 +10,7 @@
 #include <linux/mmzone.h>
 #include <linux/kbuild.h>
 #include <linux/page_cgroup.h>
+#include <linux/log2.h>
 
 void foo(void)
 {
@@ -17,5 +18,8 @@ void foo(void)
 	DEFINE(NR_PAGEFLAGS, __NR_PAGEFLAGS);
 	DEFINE(MAX_NR_ZONES, __MAX_NR_ZONES);
 	DEFINE(NR_PCG_FLAGS, __NR_PCG_FLAGS);
+#ifdef CONFIG_SMP
+	DEFINE(NR_CPUS_BITS, ilog2(CONFIG_NR_CPUS));
+#endif
 	/* End of constants */
 }
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index aa561c8dc899..dbe0f628efa3 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1210,7 +1210,7 @@ static void task_numa_placement(struct task_struct *p)
 /*
  * Got a PROT_NONE fault for a page on @node.
  */
-void task_numa_fault(int last_nidpid, int node, int pages, bool migrated)
+void task_numa_fault(int last_cpupid, int node, int pages, bool migrated)
 {
 	struct task_struct *p = current;
 	int priv;
@@ -1226,8 +1226,8 @@ void task_numa_fault(int last_nidpid, int node, int pages, bool migrated)
 	 * First accesses are treated as private, otherwise consider accesses
 	 * to be private if the accessing pid has not changed
 	 */
-	if (!nidpid_pid_unset(last_nidpid))
-		priv = ((p->pid & LAST__PID_MASK) == nidpid_to_pid(last_nidpid));
+	if (!cpupid_pid_unset(last_cpupid))
+		priv = ((p->pid & LAST__PID_MASK) == cpupid_to_pid(last_cpupid));
 	else
 		priv = 1;
 
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 0baf0e4d5203..becf92ca54f3 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1282,7 +1282,7 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	struct page *page;
 	unsigned long haddr = addr & HPAGE_PMD_MASK;
 	int page_nid = -1, this_nid = numa_node_id();
-	int target_nid, last_nidpid = -1;
+	int target_nid, last_cpupid = -1;
 	bool page_locked;
 	bool migrated = false;
 
@@ -1293,7 +1293,7 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	page = pmd_page(pmd);
 	BUG_ON(is_huge_zero_page(page));
 	page_nid = page_to_nid(page);
-	last_nidpid = page_nidpid_last(page);
+	last_cpupid = page_cpupid_last(page);
 	count_vm_numa_event(NUMA_HINT_FAULTS);
 	if (page_nid == this_nid)
 		count_vm_numa_event(NUMA_HINT_FAULTS_LOCAL);
@@ -1362,7 +1362,7 @@ out:
 		page_unlock_anon_vma_read(anon_vma);
 
 	if (page_nid != -1)
-		task_numa_fault(last_nidpid, page_nid, HPAGE_PMD_NR, migrated);
+		task_numa_fault(last_cpupid, page_nid, HPAGE_PMD_NR, migrated);
 
 	return 0;
 }
@@ -1682,7 +1682,7 @@ static void __split_huge_page_refcount(struct page *page,
 		page_tail->mapping = page->mapping;
 
 		page_tail->index = page->index + i;
-		page_nidpid_xchg_last(page_tail, page_nidpid_last(page));
+		page_cpupid_xchg_last(page_tail, page_cpupid_last(page));
 
 		BUG_ON(!PageAnon(page_tail));
 		BUG_ON(!PageUptodate(page_tail));
diff --git a/mm/memory.c b/mm/memory.c
index cc7f20691c82..5162e6d0d652 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -69,8 +69,8 @@
 
 #include "internal.h"
 
-#ifdef LAST_NIDPID_NOT_IN_PAGE_FLAGS
-#warning Unfortunate NUMA and NUMA Balancing config, growing page-frame for last_nidpid.
+#ifdef LAST_CPUPID_NOT_IN_PAGE_FLAGS
+#warning Unfortunate NUMA and NUMA Balancing config, growing page-frame for last_cpupid.
 #endif
 
 #ifndef CONFIG_NEED_MULTIPLE_NODES
@@ -3536,7 +3536,7 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	struct page *page = NULL;
 	spinlock_t *ptl;
 	int page_nid = -1;
-	int last_nidpid;
+	int last_cpupid;
 	int target_nid;
 	bool migrated = false;
 
@@ -3567,7 +3567,7 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	}
 	BUG_ON(is_zero_pfn(page_to_pfn(page)));
 
-	last_nidpid = page_nidpid_last(page);
+	last_cpupid = page_cpupid_last(page);
 	page_nid = page_to_nid(page);
 	target_nid = numa_migrate_prep(page, vma, addr, page_nid);
 	pte_unmap_unlock(ptep, ptl);
@@ -3583,7 +3583,7 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 
 out:
 	if (page_nid != -1)
-		task_numa_fault(last_nidpid, page_nid, 1, migrated);
+		task_numa_fault(last_cpupid, page_nid, 1, migrated);
 	return 0;
 }
 
@@ -3598,7 +3598,7 @@ static int do_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	unsigned long offset;
 	spinlock_t *ptl;
 	bool numa = false;
-	int last_nidpid;
+	int last_cpupid;
 
 	spin_lock(&mm->page_table_lock);
 	pmd = *pmdp;
@@ -3643,7 +3643,7 @@ static int do_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		if (unlikely(!page))
 			continue;
 
-		last_nidpid = page_nidpid_last(page);
+		last_cpupid = page_cpupid_last(page);
 		page_nid = page_to_nid(page);
 		target_nid = numa_migrate_prep(page, vma, addr, page_nid);
 		pte_unmap_unlock(pte, ptl);
@@ -3656,7 +3656,7 @@ static int do_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		}
 
 		if (page_nid != -1)
-			task_numa_fault(last_nidpid, page_nid, 1, migrated);
+			task_numa_fault(last_cpupid, page_nid, 1, migrated);
 
 		pte = pte_offset_map_lock(mm, pmdp, addr, &ptl);
 	}
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 0e895a2eed5f..a5867ef24bda 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2324,6 +2324,8 @@ int mpol_misplaced(struct page *page, struct vm_area_struct *vma, unsigned long
 	struct zone *zone;
 	int curnid = page_to_nid(page);
 	unsigned long pgoff;
+	int thiscpu = raw_smp_processor_id();
+	int thisnid = cpu_to_node(thiscpu);
 	int polnid = -1;
 	int ret = -1;
 
@@ -2372,11 +2374,11 @@ int mpol_misplaced(struct page *page, struct vm_area_struct *vma, unsigned long
 
 	/* Migrate the page towards the node whose CPU is referencing it */
 	if (pol->flags & MPOL_F_MORON) {
-		int last_nidpid;
-		int this_nidpid;
+		int last_cpupid;
+		int this_cpupid;
 
-		polnid = numa_node_id();
-		this_nidpid = nid_pid_to_nidpid(polnid, current->pid);
+		polnid = thisnid;
+		this_cpupid = cpu_pid_to_cpupid(thiscpu, current->pid);
 
 		/*
 		 * Multi-stage node selection is used in conjunction
@@ -2399,8 +2401,8 @@ int mpol_misplaced(struct page *page, struct vm_area_struct *vma, unsigned long
 		 * it less likely we act on an unlikely task<->page
 		 * relation.
 		 */
-		last_nidpid = page_nidpid_xchg_last(page, this_nidpid);
-		if (!nidpid_pid_unset(last_nidpid) && nidpid_to_nid(last_nidpid) != polnid)
+		last_cpupid = page_cpupid_xchg_last(page, this_cpupid);
+		if (!cpupid_pid_unset(last_cpupid) && cpupid_to_nid(last_cpupid) != thisnid)
 			goto out;
 
 #ifdef CONFIG_NUMA_BALANCING
@@ -2410,7 +2412,7 @@ int mpol_misplaced(struct page *page, struct vm_area_struct *vma, unsigned long
 		 * This way a short and temporary process migration will
 		 * not cause excessive memory migration.
 		 */
-		if (polnid != current->numa_preferred_nid &&
+		if (thisnid != current->numa_preferred_nid &&
 				!current->numa_migrate_seq)
 			goto out;
 #endif
diff --git a/mm/migrate.c b/mm/migrate.c
index 025d1e3d2ad2..ff537749d3b4 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1498,7 +1498,7 @@ static struct page *alloc_misplaced_dst_page(struct page *page,
 					  __GFP_NOWARN) &
 					 ~GFP_IOFS, 0);
 	if (newpage)
-		page_nidpid_xchg_last(newpage, page_nidpid_last(page));
+		page_cpupid_xchg_last(newpage, page_cpupid_last(page));
 
 	return newpage;
 }
@@ -1675,7 +1675,7 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm,
 	if (!new_page)
 		goto out_fail;
 
-	page_nidpid_xchg_last(new_page, page_nidpid_last(page));
+	page_cpupid_xchg_last(new_page, page_cpupid_last(page));
 
 	isolated = numamigrate_isolate_page(pgdat, page);
 	if (!isolated) {
diff --git a/mm/mm_init.c b/mm/mm_init.c
index 467de579784b..68562e92d50c 100644
--- a/mm/mm_init.c
+++ b/mm/mm_init.c
@@ -71,26 +71,26 @@ void __init mminit_verify_pageflags_layout(void)
 	unsigned long or_mask, add_mask;
 
 	shift = 8 * sizeof(unsigned long);
-	width = shift - SECTIONS_WIDTH - NODES_WIDTH - ZONES_WIDTH - LAST_NIDPID_SHIFT;
+	width = shift - SECTIONS_WIDTH - NODES_WIDTH - ZONES_WIDTH - LAST_CPUPID_SHIFT;
 	mminit_dprintk(MMINIT_TRACE, "pageflags_layout_widths",
-		"Section %d Node %d Zone %d Lastnidpid %d Flags %d\n",
+		"Section %d Node %d Zone %d Lastcpupid %d Flags %d\n",
 		SECTIONS_WIDTH,
 		NODES_WIDTH,
 		ZONES_WIDTH,
-		LAST_NIDPID_WIDTH,
+		LAST_CPUPID_WIDTH,
 		NR_PAGEFLAGS);
 	mminit_dprintk(MMINIT_TRACE, "pageflags_layout_shifts",
-		"Section %d Node %d Zone %d Lastnidpid %d\n",
+		"Section %d Node %d Zone %d Lastcpupid %d\n",
 		SECTIONS_SHIFT,
 		NODES_SHIFT,
 		ZONES_SHIFT,
-		LAST_NIDPID_SHIFT);
+		LAST_CPUPID_SHIFT);
 	mminit_dprintk(MMINIT_TRACE, "pageflags_layout_pgshifts",
-		"Section %lu Node %lu Zone %lu Lastnidpid %lu\n",
+		"Section %lu Node %lu Zone %lu Lastcpupid %lu\n",
 		(unsigned long)SECTIONS_PGSHIFT,
 		(unsigned long)NODES_PGSHIFT,
 		(unsigned long)ZONES_PGSHIFT,
-		(unsigned long)LAST_NIDPID_PGSHIFT);
+		(unsigned long)LAST_CPUPID_PGSHIFT);
 	mminit_dprintk(MMINIT_TRACE, "pageflags_layout_nodezoneid",
 		"Node/Zone ID: %lu -> %lu\n",
 		(unsigned long)(ZONEID_PGOFF + ZONEID_SHIFT),
@@ -102,9 +102,9 @@ void __init mminit_verify_pageflags_layout(void)
 	mminit_dprintk(MMINIT_TRACE, "pageflags_layout_nodeflags",
 		"Node not in page flags");
 #endif
-#ifdef LAST_NIDPID_NOT_IN_PAGE_FLAGS
+#ifdef LAST_CPUPID_NOT_IN_PAGE_FLAGS
 	mminit_dprintk(MMINIT_TRACE, "pageflags_layout_nodeflags",
-		"Last nidpid not in page flags");
+		"Last cpupid not in page flags");
 #endif
 
 	if (SECTIONS_WIDTH) {
diff --git a/mm/mmzone.c b/mm/mmzone.c
index 25bb477deb26..bf34fb8556db 100644
--- a/mm/mmzone.c
+++ b/mm/mmzone.c
@@ -97,20 +97,20 @@ void lruvec_init(struct lruvec *lruvec)
 		INIT_LIST_HEAD(&lruvec->lists[lru]);
 }
 
-#if defined(CONFIG_NUMA_BALANCING) && !defined(LAST_NIDPID_NOT_IN_PAGE_FLAGS)
-int page_nidpid_xchg_last(struct page *page, int nidpid)
+#if defined(CONFIG_NUMA_BALANCING) && !defined(LAST_CPUPID_NOT_IN_PAGE_FLAGS)
+int page_cpupid_xchg_last(struct page *page, int cpupid)
 {
 	unsigned long old_flags, flags;
-	int last_nidpid;
+	int last_cpupid;
 
 	do {
 		old_flags = flags = page->flags;
-		last_nidpid = page_nidpid_last(page);
+		last_cpupid = page_cpupid_last(page);
 
-		flags &= ~(LAST_NIDPID_MASK << LAST_NIDPID_PGSHIFT);
-		flags |= (nidpid & LAST_NIDPID_MASK) << LAST_NIDPID_PGSHIFT;
+		flags &= ~(LAST_CPUPID_MASK << LAST_CPUPID_PGSHIFT);
+		flags |= (cpupid & LAST_CPUPID_MASK) << LAST_CPUPID_PGSHIFT;
 	} while (unlikely(cmpxchg(&page->flags, old_flags, flags) != old_flags));
 
-	return last_nidpid;
+	return last_cpupid;
 }
 #endif
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 5aae39017d6d..9a74855f1241 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -37,14 +37,14 @@ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
 
 static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 		unsigned long addr, unsigned long end, pgprot_t newprot,
-		int dirty_accountable, int prot_numa, bool *ret_all_same_nidpid)
+		int dirty_accountable, int prot_numa, bool *ret_all_same_cpupid)
 {
 	struct mm_struct *mm = vma->vm_mm;
 	pte_t *pte, oldpte;
 	spinlock_t *ptl;
 	unsigned long pages = 0;
-	bool all_same_nidpid = true;
-	int last_nid = -1;
+	bool all_same_cpupid = true;
+	int last_cpu = -1;
 	int last_pid = -1;
 
 	pte = pte_offset_map_lock(mm, pmd, addr, &ptl);
@@ -64,17 +64,17 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 
 				page = vm_normal_page(vma, addr, oldpte);
 				if (page) {
-					int nidpid = page_nidpid_last(page);
-					int this_nid = nidpid_to_nid(nidpid);
-					int this_pid = nidpid_to_pid(nidpid);
+					int cpupid = page_cpupid_last(page);
+					int this_cpu = cpupid_to_cpu(cpupid);
+					int this_pid = cpupid_to_pid(cpupid);
 
-					if (last_nid == -1)
-						last_nid = this_nid;
+					if (last_cpu == -1)
+						last_cpu = this_cpu;
 					if (last_pid == -1)
 						last_pid = this_pid;
-					if (last_nid != this_nid ||
+					if (last_cpu != this_cpu ||
 					    last_pid != this_pid) {
-						all_same_nidpid = false;
+						all_same_cpupid = false;
 					}
 
 					if (!pte_numa(oldpte)) {
@@ -115,7 +115,7 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 	arch_leave_lazy_mmu_mode();
 	pte_unmap_unlock(pte - 1, ptl);
 
-	*ret_all_same_nidpid = all_same_nidpid;
+	*ret_all_same_cpupid = all_same_cpupid;
 	return pages;
 }
 
@@ -142,7 +142,7 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
 	pmd_t *pmd;
 	unsigned long next;
 	unsigned long pages = 0;
-	bool all_same_nidpid;
+	bool all_same_cpupid;
 
 	pmd = pmd_offset(pud, addr);
 	do {
@@ -168,7 +168,7 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
 		if (pmd_none_or_clear_bad(pmd))
 			continue;
 		this_pages = change_pte_range(vma, pmd, addr, next, newprot,
-				 dirty_accountable, prot_numa, &all_same_nidpid);
+				 dirty_accountable, prot_numa, &all_same_cpupid);
 		pages += this_pages;
 
 		/*
@@ -177,7 +177,7 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
 		 * node. This allows a regular PMD to be handled as one fault
 		 * and effectively batches the taking of the PTL
 		 */
-		if (prot_numa && this_pages && all_same_nidpid)
+		if (prot_numa && this_pages && all_same_cpupid)
 			change_pmd_protnuma(vma->vm_mm, addr, pmd);
 	} while (pmd++, addr = next, addr != end);
 
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 89bedd0e4cad..73d812f16dde 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -626,7 +626,7 @@ static inline int free_pages_check(struct page *page)
 		bad_page(page);
 		return 1;
 	}
-	page_nidpid_reset_last(page);
+	page_cpupid_reset_last(page);
 	if (page->flags & PAGE_FLAGS_CHECK_AT_PREP)
 		page->flags &= ~PAGE_FLAGS_CHECK_AT_PREP;
 	return 0;
@@ -4015,7 +4015,7 @@ void __meminit memmap_init_zone(unsigned long size, int nid, unsigned long zone,
 		mminit_verify_page_links(page, zone, nid, pfn);
 		init_page_count(page);
 		page_mapcount_reset(page);
-		page_nidpid_reset_last(page);
+		page_cpupid_reset_last(page);
 		SetPageReserved(page);
 		/*
 		 * Mark the block movable so that blocks are reserved for
-- 
cgit 


From 8c8a743c5087bac9caac8155b8f3b367e75cdd0b Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 7 Oct 2013 11:29:21 +0100
Subject: sched/numa: Use {cpu, pid} to create task groups for shared faults

While parallel applications tend to align their data on the cache
boundary, they tend not to align on the page or THP boundary.
Consequently tasks that partition their data can still "false-share"
pages presenting a problem for optimal NUMA placement.

This patch uses NUMA hinting faults to chain tasks together into
numa_groups. As well as storing the NID a task was running on when
accessing a page a truncated representation of the faulting PID is
stored. If subsequent faults are from different PIDs it is reasonable
to assume that those two tasks share a page and are candidates for
being grouped together. Note that this patch makes no scheduling
decisions based on the grouping information.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1381141781-10992-44-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/mm.h    |  11 ++++
 include/linux/sched.h |   3 +
 kernel/sched/core.c   |   3 +
 kernel/sched/fair.c   | 165 +++++++++++++++++++++++++++++++++++++++++++++++---
 kernel/sched/sched.h  |   5 +-
 mm/memory.c           |   8 +++
 6 files changed, 182 insertions(+), 13 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index ce464cd4777e..81443d557a2e 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -691,6 +691,12 @@ static inline bool cpupid_cpu_unset(int cpupid)
 	return cpupid_to_cpu(cpupid) == (-1 & LAST__CPU_MASK);
 }
 
+static inline bool __cpupid_match_pid(pid_t task_pid, int cpupid)
+{
+	return (task_pid & LAST__PID_MASK) == cpupid_to_pid(cpupid);
+}
+
+#define cpupid_match_pid(task, cpupid) __cpupid_match_pid(task->pid, cpupid)
 #ifdef LAST_CPUPID_NOT_IN_PAGE_FLAGS
 static inline int page_cpupid_xchg_last(struct page *page, int cpupid)
 {
@@ -760,6 +766,11 @@ static inline bool cpupid_pid_unset(int cpupid)
 static inline void page_cpupid_reset_last(struct page *page)
 {
 }
+
+static inline bool cpupid_match_pid(struct task_struct *task, int cpupid)
+{
+	return false;
+}
 #endif /* CONFIG_NUMA_BALANCING */
 
 static inline struct zone *page_zone(const struct page *page)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index b6619792bb13..f587ded5c148 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1347,6 +1347,9 @@ struct task_struct {
 	u64 node_stamp;			/* migration stamp  */
 	struct callback_head numa_work;
 
+	struct list_head numa_entry;
+	struct numa_group *numa_group;
+
 	/*
 	 * Exponential decaying average of faults on a per-node basis.
 	 * Scheduling placement decisions are made based on the these counts.
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 1fe59da280e3..51092d5cc64c 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1733,6 +1733,9 @@ static void __sched_fork(struct task_struct *p)
 	p->numa_work.next = &p->numa_work;
 	p->numa_faults = NULL;
 	p->numa_faults_buffer = NULL;
+
+	INIT_LIST_HEAD(&p->numa_entry);
+	p->numa_group = NULL;
 #endif /* CONFIG_NUMA_BALANCING */
 }
 
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index dbe0f628efa3..85565053a6ed 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -888,6 +888,17 @@ static unsigned int task_scan_max(struct task_struct *p)
  */
 unsigned int sysctl_numa_balancing_settle_count __read_mostly = 4;
 
+struct numa_group {
+	atomic_t refcount;
+
+	spinlock_t lock; /* nr_tasks, tasks */
+	int nr_tasks;
+	struct list_head task_list;
+
+	struct rcu_head rcu;
+	atomic_long_t faults[0];
+};
+
 static inline int task_faults_idx(int nid, int priv)
 {
 	return 2 * nid + priv;
@@ -1182,7 +1193,10 @@ static void task_numa_placement(struct task_struct *p)
 		int priv, i;
 
 		for (priv = 0; priv < 2; priv++) {
+			long diff;
+
 			i = task_faults_idx(nid, priv);
+			diff = -p->numa_faults[i];
 
 			/* Decay existing window, copy faults since last scan */
 			p->numa_faults[i] >>= 1;
@@ -1190,6 +1204,11 @@ static void task_numa_placement(struct task_struct *p)
 			p->numa_faults_buffer[i] = 0;
 
 			faults += p->numa_faults[i];
+			diff += p->numa_faults[i];
+			if (p->numa_group) {
+				/* safe because we can only change our own group */
+				atomic_long_add(diff, &p->numa_group->faults[i]);
+			}
 		}
 
 		if (faults > max_faults) {
@@ -1207,6 +1226,131 @@ static void task_numa_placement(struct task_struct *p)
 	}
 }
 
+static inline int get_numa_group(struct numa_group *grp)
+{
+	return atomic_inc_not_zero(&grp->refcount);
+}
+
+static inline void put_numa_group(struct numa_group *grp)
+{
+	if (atomic_dec_and_test(&grp->refcount))
+		kfree_rcu(grp, rcu);
+}
+
+static void double_lock(spinlock_t *l1, spinlock_t *l2)
+{
+	if (l1 > l2)
+		swap(l1, l2);
+
+	spin_lock(l1);
+	spin_lock_nested(l2, SINGLE_DEPTH_NESTING);
+}
+
+static void task_numa_group(struct task_struct *p, int cpupid)
+{
+	struct numa_group *grp, *my_grp;
+	struct task_struct *tsk;
+	bool join = false;
+	int cpu = cpupid_to_cpu(cpupid);
+	int i;
+
+	if (unlikely(!p->numa_group)) {
+		unsigned int size = sizeof(struct numa_group) +
+				    2*nr_node_ids*sizeof(atomic_long_t);
+
+		grp = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
+		if (!grp)
+			return;
+
+		atomic_set(&grp->refcount, 1);
+		spin_lock_init(&grp->lock);
+		INIT_LIST_HEAD(&grp->task_list);
+
+		for (i = 0; i < 2*nr_node_ids; i++)
+			atomic_long_set(&grp->faults[i], p->numa_faults[i]);
+
+		list_add(&p->numa_entry, &grp->task_list);
+		grp->nr_tasks++;
+		rcu_assign_pointer(p->numa_group, grp);
+	}
+
+	rcu_read_lock();
+	tsk = ACCESS_ONCE(cpu_rq(cpu)->curr);
+
+	if (!cpupid_match_pid(tsk, cpupid))
+		goto unlock;
+
+	grp = rcu_dereference(tsk->numa_group);
+	if (!grp)
+		goto unlock;
+
+	my_grp = p->numa_group;
+	if (grp == my_grp)
+		goto unlock;
+
+	/*
+	 * Only join the other group if its bigger; if we're the bigger group,
+	 * the other task will join us.
+	 */
+	if (my_grp->nr_tasks > grp->nr_tasks)
+		goto unlock;
+
+	/*
+	 * Tie-break on the grp address.
+	 */
+	if (my_grp->nr_tasks == grp->nr_tasks && my_grp > grp)
+		goto unlock;
+
+	if (!get_numa_group(grp))
+		goto unlock;
+
+	join = true;
+
+unlock:
+	rcu_read_unlock();
+
+	if (!join)
+		return;
+
+	for (i = 0; i < 2*nr_node_ids; i++) {
+		atomic_long_sub(p->numa_faults[i], &my_grp->faults[i]);
+		atomic_long_add(p->numa_faults[i], &grp->faults[i]);
+	}
+
+	double_lock(&my_grp->lock, &grp->lock);
+
+	list_move(&p->numa_entry, &grp->task_list);
+	my_grp->nr_tasks--;
+	grp->nr_tasks++;
+
+	spin_unlock(&my_grp->lock);
+	spin_unlock(&grp->lock);
+
+	rcu_assign_pointer(p->numa_group, grp);
+
+	put_numa_group(my_grp);
+}
+
+void task_numa_free(struct task_struct *p)
+{
+	struct numa_group *grp = p->numa_group;
+	int i;
+
+	if (grp) {
+		for (i = 0; i < 2*nr_node_ids; i++)
+			atomic_long_sub(p->numa_faults[i], &grp->faults[i]);
+
+		spin_lock(&grp->lock);
+		list_del(&p->numa_entry);
+		grp->nr_tasks--;
+		spin_unlock(&grp->lock);
+		rcu_assign_pointer(p->numa_group, NULL);
+		put_numa_group(grp);
+	}
+
+	kfree(p->numa_faults);
+}
+
 /*
  * Got a PROT_NONE fault for a page on @node.
  */
@@ -1222,15 +1366,6 @@ void task_numa_fault(int last_cpupid, int node, int pages, bool migrated)
 	if (!p->mm)
 		return;
 
-	/*
-	 * First accesses are treated as private, otherwise consider accesses
-	 * to be private if the accessing pid has not changed
-	 */
-	if (!cpupid_pid_unset(last_cpupid))
-		priv = ((p->pid & LAST__PID_MASK) == cpupid_to_pid(last_cpupid));
-	else
-		priv = 1;
-
 	/* Allocate buffer to track faults on a per-node basis */
 	if (unlikely(!p->numa_faults)) {
 		int size = sizeof(*p->numa_faults) * 2 * nr_node_ids;
@@ -1244,6 +1379,18 @@ void task_numa_fault(int last_cpupid, int node, int pages, bool migrated)
 		p->numa_faults_buffer = p->numa_faults + (2 * nr_node_ids);
 	}
 
+	/*
+	 * First accesses are treated as private, otherwise consider accesses
+	 * to be private if the accessing pid has not changed
+	 */
+	if (unlikely(last_cpupid == (-1 & LAST_CPUPID_MASK))) {
+		priv = 1;
+	} else {
+		priv = cpupid_match_pid(p, last_cpupid);
+		if (!priv)
+			task_numa_group(p, last_cpupid);
+	}
+
 	/*
 	 * If pages are properly placed (did not migrate) then scan slower.
 	 * This is reset periodically in case of phase changes
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 691e96964dcc..8037b10a256f 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -559,10 +559,7 @@ static inline u64 rq_clock_task(struct rq *rq)
 #ifdef CONFIG_NUMA_BALANCING
 extern int migrate_task_to(struct task_struct *p, int cpu);
 extern int migrate_swap(struct task_struct *, struct task_struct *);
-static inline void task_numa_free(struct task_struct *p)
-{
-	kfree(p->numa_faults);
-}
+extern void task_numa_free(struct task_struct *p);
 #else /* CONFIG_NUMA_BALANCING */
 static inline void task_numa_free(struct task_struct *p)
 {
diff --git a/mm/memory.c b/mm/memory.c
index 5162e6d0d652..c57efa25cdbb 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -2719,6 +2719,14 @@ static int do_wp_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		get_page(dirty_page);
 
 reuse:
+		/*
+		 * Clear the pages cpupid information as the existing
+		 * information potentially belongs to a now completely
+		 * unrelated process.
+		 */
+		if (old_page)
+			page_cpupid_xchg_last(old_page, (1 << LAST_CPUPID_SHIFT) - 1);
+
 		flush_cache_page(vma, address, pte_pfn(orig_pte));
 		entry = pte_mkyoung(orig_pte);
 		entry = maybe_mkwrite(pte_mkdirty(entry), vma);
-- 
cgit 


From e29cf08b05dc0b8151d65704d96d525a9e179a6b Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:22 +0100
Subject: sched/numa: Report a NUMA task group ID

It is desirable to model from userspace how the scheduler groups tasks
over time. This patch adds an ID to the numa_group and reports it via
/proc/PID/status.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-45-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 fs/proc/array.c       | 2 ++
 include/linux/sched.h | 5 +++++
 kernel/sched/fair.c   | 7 +++++++
 3 files changed, 14 insertions(+)

diff --git a/fs/proc/array.c b/fs/proc/array.c
index cbd0f1b324b9..1bd2077187fd 100644
--- a/fs/proc/array.c
+++ b/fs/proc/array.c
@@ -183,6 +183,7 @@ static inline void task_state(struct seq_file *m, struct pid_namespace *ns,
 	seq_printf(m,
 		"State:\t%s\n"
 		"Tgid:\t%d\n"
+		"Ngid:\t%d\n"
 		"Pid:\t%d\n"
 		"PPid:\t%d\n"
 		"TracerPid:\t%d\n"
@@ -190,6 +191,7 @@ static inline void task_state(struct seq_file *m, struct pid_namespace *ns,
 		"Gid:\t%d\t%d\t%d\t%d\n",
 		get_task_state(p),
 		task_tgid_nr_ns(p, ns),
+		task_numa_group_id(p),
 		pid_nr_ns(pid, ns),
 		ppid, tpid,
 		from_kuid_munged(user_ns, cred->uid),
diff --git a/include/linux/sched.h b/include/linux/sched.h
index f587ded5c148..b0b343b1ba64 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1452,12 +1452,17 @@ struct task_struct {
 
 #ifdef CONFIG_NUMA_BALANCING
 extern void task_numa_fault(int last_node, int node, int pages, bool migrated);
+extern pid_t task_numa_group_id(struct task_struct *p);
 extern void set_numabalancing_state(bool enabled);
 #else
 static inline void task_numa_fault(int last_node, int node, int pages,
 				   bool migrated)
 {
 }
+static inline pid_t task_numa_group_id(struct task_struct *p)
+{
+	return 0;
+}
 static inline void set_numabalancing_state(bool enabled)
 {
 }
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 85565053a6ed..5bd309c035c7 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -893,12 +893,18 @@ struct numa_group {
 
 	spinlock_t lock; /* nr_tasks, tasks */
 	int nr_tasks;
+	pid_t gid;
 	struct list_head task_list;
 
 	struct rcu_head rcu;
 	atomic_long_t faults[0];
 };
 
+pid_t task_numa_group_id(struct task_struct *p)
+{
+	return p->numa_group ? p->numa_group->gid : 0;
+}
+
 static inline int task_faults_idx(int nid, int priv)
 {
 	return 2 * nid + priv;
@@ -1265,6 +1271,7 @@ static void task_numa_group(struct task_struct *p, int cpupid)
 		atomic_set(&grp->refcount, 1);
 		spin_lock_init(&grp->lock);
 		INIT_LIST_HEAD(&grp->task_list);
+		grp->gid = p->pid;
 
 		for (i = 0; i < 2*nr_node_ids; i++)
 			atomic_long_set(&grp->faults[i], p->numa_faults[i]);
-- 
cgit 


From 7851a45cd3f6198bf542c30e27b330e8eeb3736c Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Mon, 7 Oct 2013 11:29:23 +0100
Subject: mm: numa: Copy cpupid on page migration

After page migration, the new page has the nidpid unset. This makes
every fault on a recently migrated page look like a first numa fault,
leading to another page migration.

Copying over the nidpid at page migration time should prevent erroneous
migrations of recently migrated pages.

Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-46-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 mm/migrate.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/mm/migrate.c b/mm/migrate.c
index ff537749d3b4..44c1fa9d6f54 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -443,6 +443,8 @@ int migrate_huge_page_move_mapping(struct address_space *mapping,
  */
 void migrate_page_copy(struct page *newpage, struct page *page)
 {
+	int cpupid;
+
 	if (PageHuge(page) || PageTransHuge(page))
 		copy_huge_page(newpage, page);
 	else
@@ -479,6 +481,13 @@ void migrate_page_copy(struct page *newpage, struct page *page)
 			__set_page_dirty_nobuffers(newpage);
  	}
 
+	/*
+	 * Copy NUMA information to the new page, to prevent over-eager
+	 * future migrations of this same page.
+	 */
+	cpupid = page_cpupid_xchg_last(page, -1);
+	page_cpupid_xchg_last(newpage, cpupid);
+
 	mlock_migrate_page(newpage, page);
 	ksm_migrate_page(newpage, page);
 	/*
-- 
cgit 


From 6688cc05473b36a0a3d3971e1adf1712919b32eb Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 7 Oct 2013 11:29:24 +0100
Subject: mm: numa: Do not group on RO pages

And here's a little something to make sure not the whole world ends up
in a single group.

As while we don't migrate shared executable pages, we do scan/fault on
them. And since everybody links to libc, everybody ends up in the same
group.

Suggested-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1381141781-10992-47-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/sched.h |  7 +++++--
 kernel/sched/fair.c   |  5 +++--
 mm/huge_memory.c      | 15 +++++++++++++--
 mm/memory.c           | 30 ++++++++++++++++++++++++++----
 4 files changed, 47 insertions(+), 10 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index b0b343b1ba64..ff543851a18a 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1450,13 +1450,16 @@ struct task_struct {
 /* Future-safe accessor for struct task_struct's cpus_allowed. */
 #define tsk_cpus_allowed(tsk) (&(tsk)->cpus_allowed)
 
+#define TNF_MIGRATED	0x01
+#define TNF_NO_GROUP	0x02
+
 #ifdef CONFIG_NUMA_BALANCING
-extern void task_numa_fault(int last_node, int node, int pages, bool migrated);
+extern void task_numa_fault(int last_node, int node, int pages, int flags);
 extern pid_t task_numa_group_id(struct task_struct *p);
 extern void set_numabalancing_state(bool enabled);
 #else
 static inline void task_numa_fault(int last_node, int node, int pages,
-				   bool migrated)
+				   int flags)
 {
 }
 static inline pid_t task_numa_group_id(struct task_struct *p)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 5bd309c035c7..35661b8afb4e 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1361,9 +1361,10 @@ void task_numa_free(struct task_struct *p)
 /*
  * Got a PROT_NONE fault for a page on @node.
  */
-void task_numa_fault(int last_cpupid, int node, int pages, bool migrated)
+void task_numa_fault(int last_cpupid, int node, int pages, int flags)
 {
 	struct task_struct *p = current;
+	bool migrated = flags & TNF_MIGRATED;
 	int priv;
 
 	if (!numabalancing_enabled)
@@ -1394,7 +1395,7 @@ void task_numa_fault(int last_cpupid, int node, int pages, bool migrated)
 		priv = 1;
 	} else {
 		priv = cpupid_match_pid(p, last_cpupid);
-		if (!priv)
+		if (!priv && !(flags & TNF_NO_GROUP))
 			task_numa_group(p, last_cpupid);
 	}
 
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index becf92ca54f3..7ab4e32afe12 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1285,6 +1285,7 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	int target_nid, last_cpupid = -1;
 	bool page_locked;
 	bool migrated = false;
+	int flags = 0;
 
 	spin_lock(&mm->page_table_lock);
 	if (unlikely(!pmd_same(pmd, *pmdp)))
@@ -1298,6 +1299,14 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	if (page_nid == this_nid)
 		count_vm_numa_event(NUMA_HINT_FAULTS_LOCAL);
 
+	/*
+	 * Avoid grouping on DSO/COW pages in specific and RO pages
+	 * in general, RO pages shouldn't hurt as much anyway since
+	 * they can be in shared cache state.
+	 */
+	if (!pmd_write(pmd))
+		flags |= TNF_NO_GROUP;
+
 	/*
 	 * Acquire the page lock to serialise THP migrations but avoid dropping
 	 * page_table_lock if at all possible
@@ -1343,8 +1352,10 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	spin_unlock(&mm->page_table_lock);
 	migrated = migrate_misplaced_transhuge_page(mm, vma,
 				pmdp, pmd, addr, page, target_nid);
-	if (migrated)
+	if (migrated) {
+		flags |= TNF_MIGRATED;
 		page_nid = target_nid;
+	}
 
 	goto out;
 clear_pmdnuma:
@@ -1362,7 +1373,7 @@ out:
 		page_unlock_anon_vma_read(anon_vma);
 
 	if (page_nid != -1)
-		task_numa_fault(last_cpupid, page_nid, HPAGE_PMD_NR, migrated);
+		task_numa_fault(last_cpupid, page_nid, HPAGE_PMD_NR, flags);
 
 	return 0;
 }
diff --git a/mm/memory.c b/mm/memory.c
index c57efa25cdbb..eba846bcf124 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3547,6 +3547,7 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	int last_cpupid;
 	int target_nid;
 	bool migrated = false;
+	int flags = 0;
 
 	/*
 	* The "pte" at this point cannot be used safely without
@@ -3575,6 +3576,14 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	}
 	BUG_ON(is_zero_pfn(page_to_pfn(page)));
 
+	/*
+	 * Avoid grouping on DSO/COW pages in specific and RO pages
+	 * in general, RO pages shouldn't hurt as much anyway since
+	 * they can be in shared cache state.
+	 */
+	if (!pte_write(pte))
+		flags |= TNF_NO_GROUP;
+
 	last_cpupid = page_cpupid_last(page);
 	page_nid = page_to_nid(page);
 	target_nid = numa_migrate_prep(page, vma, addr, page_nid);
@@ -3586,12 +3595,14 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 
 	/* Migrate to the requested node */
 	migrated = migrate_misplaced_page(page, vma, target_nid);
-	if (migrated)
+	if (migrated) {
 		page_nid = target_nid;
+		flags |= TNF_MIGRATED;
+	}
 
 out:
 	if (page_nid != -1)
-		task_numa_fault(last_cpupid, page_nid, 1, migrated);
+		task_numa_fault(last_cpupid, page_nid, 1, flags);
 	return 0;
 }
 
@@ -3632,6 +3643,7 @@ static int do_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		int page_nid = -1;
 		int target_nid;
 		bool migrated = false;
+		int flags = 0;
 
 		if (!pte_present(pteval))
 			continue;
@@ -3651,20 +3663,30 @@ static int do_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		if (unlikely(!page))
 			continue;
 
+		/*
+		 * Avoid grouping on DSO/COW pages in specific and RO pages
+		 * in general, RO pages shouldn't hurt as much anyway since
+		 * they can be in shared cache state.
+		 */
+		if (!pte_write(pteval))
+			flags |= TNF_NO_GROUP;
+
 		last_cpupid = page_cpupid_last(page);
 		page_nid = page_to_nid(page);
 		target_nid = numa_migrate_prep(page, vma, addr, page_nid);
 		pte_unmap_unlock(pte, ptl);
 		if (target_nid != -1) {
 			migrated = migrate_misplaced_page(page, vma, target_nid);
-			if (migrated)
+			if (migrated) {
 				page_nid = target_nid;
+				flags |= TNF_MIGRATED;
+			}
 		} else {
 			put_page(page);
 		}
 
 		if (page_nid != -1)
-			task_numa_fault(last_cpupid, page_nid, 1, migrated);
+			task_numa_fault(last_cpupid, page_nid, 1, flags);
 
 		pte = pte_offset_map_lock(mm, pmdp, addr, &ptl);
 	}
-- 
cgit 


From 0f19c17929c952c6f0966d93ab05558e7bf814cc Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:25 +0100
Subject: mm: numa: Do not batch handle PMD pages

With the THP migration races closed it is still possible to occasionally
see corruption. The problem is related to handling PMD pages in batch.
When a page fault is handled it can be assumed that the page being
faulted will also be flushed from the TLB. The same flushing does not
happen when handling PMD pages in batch. Fixing is straight forward but
there are a number of reasons not to

1. Multiple TLB flushes may have to be sent depending on what pages get
   migrated
2. The handling of PMDs in batch means that faults get accounted to
   the task that is handling the fault. While care is taken to only
   mark PMDs where the last CPU and PID match it can still have problems
   due to PID truncation when matching PIDs.
3. Batching on the PMD level may reduce faults but setting pmd_numa
   requires taking a heavy lock that can contend with THP migration
   and handling the fault requires the release/acquisition of the PTL
   for every page migrated. It's still pretty heavy.

PMD batch handling is not something that people ever have been happy
with. This patch removes it and later patches will deal with the
additional fault overhead using more installigent migrate rate adaption.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-48-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 mm/memory.c   | 101 ++--------------------------------------------------------
 mm/mprotect.c |  47 ++-------------------------
 2 files changed, 4 insertions(+), 144 deletions(-)

diff --git a/mm/memory.c b/mm/memory.c
index eba846bcf124..9898eeb9a21c 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3606,103 +3606,6 @@ out:
 	return 0;
 }
 
-/* NUMA hinting page fault entry point for regular pmds */
-#ifdef CONFIG_NUMA_BALANCING
-static int do_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
-		     unsigned long addr, pmd_t *pmdp)
-{
-	pmd_t pmd;
-	pte_t *pte, *orig_pte;
-	unsigned long _addr = addr & PMD_MASK;
-	unsigned long offset;
-	spinlock_t *ptl;
-	bool numa = false;
-	int last_cpupid;
-
-	spin_lock(&mm->page_table_lock);
-	pmd = *pmdp;
-	if (pmd_numa(pmd)) {
-		set_pmd_at(mm, _addr, pmdp, pmd_mknonnuma(pmd));
-		numa = true;
-	}
-	spin_unlock(&mm->page_table_lock);
-
-	if (!numa)
-		return 0;
-
-	/* we're in a page fault so some vma must be in the range */
-	BUG_ON(!vma);
-	BUG_ON(vma->vm_start >= _addr + PMD_SIZE);
-	offset = max(_addr, vma->vm_start) & ~PMD_MASK;
-	VM_BUG_ON(offset >= PMD_SIZE);
-	orig_pte = pte = pte_offset_map_lock(mm, pmdp, _addr, &ptl);
-	pte += offset >> PAGE_SHIFT;
-	for (addr = _addr + offset; addr < _addr + PMD_SIZE; pte++, addr += PAGE_SIZE) {
-		pte_t pteval = *pte;
-		struct page *page;
-		int page_nid = -1;
-		int target_nid;
-		bool migrated = false;
-		int flags = 0;
-
-		if (!pte_present(pteval))
-			continue;
-		if (!pte_numa(pteval))
-			continue;
-		if (addr >= vma->vm_end) {
-			vma = find_vma(mm, addr);
-			/* there's a pte present so there must be a vma */
-			BUG_ON(!vma);
-			BUG_ON(addr < vma->vm_start);
-		}
-		if (pte_numa(pteval)) {
-			pteval = pte_mknonnuma(pteval);
-			set_pte_at(mm, addr, pte, pteval);
-		}
-		page = vm_normal_page(vma, addr, pteval);
-		if (unlikely(!page))
-			continue;
-
-		/*
-		 * Avoid grouping on DSO/COW pages in specific and RO pages
-		 * in general, RO pages shouldn't hurt as much anyway since
-		 * they can be in shared cache state.
-		 */
-		if (!pte_write(pteval))
-			flags |= TNF_NO_GROUP;
-
-		last_cpupid = page_cpupid_last(page);
-		page_nid = page_to_nid(page);
-		target_nid = numa_migrate_prep(page, vma, addr, page_nid);
-		pte_unmap_unlock(pte, ptl);
-		if (target_nid != -1) {
-			migrated = migrate_misplaced_page(page, vma, target_nid);
-			if (migrated) {
-				page_nid = target_nid;
-				flags |= TNF_MIGRATED;
-			}
-		} else {
-			put_page(page);
-		}
-
-		if (page_nid != -1)
-			task_numa_fault(last_cpupid, page_nid, 1, flags);
-
-		pte = pte_offset_map_lock(mm, pmdp, addr, &ptl);
-	}
-	pte_unmap_unlock(orig_pte, ptl);
-
-	return 0;
-}
-#else
-static int do_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
-		     unsigned long addr, pmd_t *pmdp)
-{
-	BUG();
-	return 0;
-}
-#endif /* CONFIG_NUMA_BALANCING */
-
 /*
  * These routines also need to handle stuff like marking pages dirty
  * and/or accessed for architectures that don't do it in hardware (most
@@ -3841,8 +3744,8 @@ retry:
 		}
 	}
 
-	if (pmd_numa(*pmd))
-		return do_pmd_numa_page(mm, vma, address, pmd);
+	/* THP should already have been handled */
+	BUG_ON(pmd_numa(*pmd));
 
 	/*
 	 * Use __pte_alloc instead of pte_alloc_map, because we can't
diff --git a/mm/mprotect.c b/mm/mprotect.c
index 9a74855f1241..a0302ac0be98 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -37,15 +37,12 @@ static inline pgprot_t pgprot_modify(pgprot_t oldprot, pgprot_t newprot)
 
 static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 		unsigned long addr, unsigned long end, pgprot_t newprot,
-		int dirty_accountable, int prot_numa, bool *ret_all_same_cpupid)
+		int dirty_accountable, int prot_numa)
 {
 	struct mm_struct *mm = vma->vm_mm;
 	pte_t *pte, oldpte;
 	spinlock_t *ptl;
 	unsigned long pages = 0;
-	bool all_same_cpupid = true;
-	int last_cpu = -1;
-	int last_pid = -1;
 
 	pte = pte_offset_map_lock(mm, pmd, addr, &ptl);
 	arch_enter_lazy_mmu_mode();
@@ -64,19 +61,6 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 
 				page = vm_normal_page(vma, addr, oldpte);
 				if (page) {
-					int cpupid = page_cpupid_last(page);
-					int this_cpu = cpupid_to_cpu(cpupid);
-					int this_pid = cpupid_to_pid(cpupid);
-
-					if (last_cpu == -1)
-						last_cpu = this_cpu;
-					if (last_pid == -1)
-						last_pid = this_pid;
-					if (last_cpu != this_cpu ||
-					    last_pid != this_pid) {
-						all_same_cpupid = false;
-					}
-
 					if (!pte_numa(oldpte)) {
 						ptent = pte_mknuma(ptent);
 						updated = true;
@@ -115,26 +99,9 @@ static unsigned long change_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 	arch_leave_lazy_mmu_mode();
 	pte_unmap_unlock(pte - 1, ptl);
 
-	*ret_all_same_cpupid = all_same_cpupid;
 	return pages;
 }
 
-#ifdef CONFIG_NUMA_BALANCING
-static inline void change_pmd_protnuma(struct mm_struct *mm, unsigned long addr,
-				       pmd_t *pmd)
-{
-	spin_lock(&mm->page_table_lock);
-	set_pmd_at(mm, addr & PMD_MASK, pmd, pmd_mknuma(*pmd));
-	spin_unlock(&mm->page_table_lock);
-}
-#else
-static inline void change_pmd_protnuma(struct mm_struct *mm, unsigned long addr,
-				       pmd_t *pmd)
-{
-	BUG();
-}
-#endif /* CONFIG_NUMA_BALANCING */
-
 static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
 		pud_t *pud, unsigned long addr, unsigned long end,
 		pgprot_t newprot, int dirty_accountable, int prot_numa)
@@ -142,7 +109,6 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
 	pmd_t *pmd;
 	unsigned long next;
 	unsigned long pages = 0;
-	bool all_same_cpupid;
 
 	pmd = pmd_offset(pud, addr);
 	do {
@@ -168,17 +134,8 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
 		if (pmd_none_or_clear_bad(pmd))
 			continue;
 		this_pages = change_pte_range(vma, pmd, addr, next, newprot,
-				 dirty_accountable, prot_numa, &all_same_cpupid);
+				 dirty_accountable, prot_numa);
 		pages += this_pages;
-
-		/*
-		 * If we are changing protections for NUMA hinting faults then
-		 * set pmd_numa if the examined pages were all on the same
-		 * node. This allows a regular PMD to be handled as one fault
-		 * and effectively batches the taking of the PTL
-		 */
-		if (prot_numa && this_pages && all_same_cpupid)
-			change_pmd_protnuma(vma->vm_mm, addr, pmd);
 	} while (pmd++, addr = next, addr != end);
 
 	return pages;
-- 
cgit 


From 5e1576ed0e54d419286a8096133029062b6ad456 Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Mon, 7 Oct 2013 11:29:26 +0100
Subject: sched/numa: Stay on the same node if CLONE_VM

A newly spawned thread inside a process should stay on the same
NUMA node as its parent. This prevents processes from being "torn"
across multiple NUMA nodes every time they spawn a new thread.

Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-49-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/sched.h |  2 +-
 kernel/fork.c         |  2 +-
 kernel/sched/core.c   | 14 +++++++++-----
 3 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index ff543851a18a..8563e3dd5c0f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -2021,7 +2021,7 @@ extern void wake_up_new_task(struct task_struct *tsk);
 #else
  static inline void kick_process(struct task_struct *tsk) { }
 #endif
-extern void sched_fork(struct task_struct *p);
+extern void sched_fork(unsigned long clone_flags, struct task_struct *p);
 extern void sched_dead(struct task_struct *p);
 
 extern void proc_caches_init(void);
diff --git a/kernel/fork.c b/kernel/fork.c
index 7192d91b5415..c93be06dee87 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1310,7 +1310,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 #endif
 
 	/* Perform scheduler related setup. Assign this task to a CPU. */
-	sched_fork(p);
+	sched_fork(clone_flags, p);
 
 	retval = perf_event_init_task(p);
 	if (retval)
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 51092d5cc64c..3e2c893df173 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1696,7 +1696,7 @@ int wake_up_state(struct task_struct *p, unsigned int state)
  *
  * __sched_fork() is basic setup used by init_idle() too:
  */
-static void __sched_fork(struct task_struct *p)
+static void __sched_fork(unsigned long clone_flags, struct task_struct *p)
 {
 	p->on_rq			= 0;
 
@@ -1725,11 +1725,15 @@ static void __sched_fork(struct task_struct *p)
 		p->mm->numa_scan_seq = 0;
 	}
 
+	if (clone_flags & CLONE_VM)
+		p->numa_preferred_nid = current->numa_preferred_nid;
+	else
+		p->numa_preferred_nid = -1;
+
 	p->node_stamp = 0ULL;
 	p->numa_scan_seq = p->mm ? p->mm->numa_scan_seq : 0;
 	p->numa_migrate_seq = 1;
 	p->numa_scan_period = sysctl_numa_balancing_scan_delay;
-	p->numa_preferred_nid = -1;
 	p->numa_work.next = &p->numa_work;
 	p->numa_faults = NULL;
 	p->numa_faults_buffer = NULL;
@@ -1761,12 +1765,12 @@ void set_numabalancing_state(bool enabled)
 /*
  * fork()/clone()-time setup:
  */
-void sched_fork(struct task_struct *p)
+void sched_fork(unsigned long clone_flags, struct task_struct *p)
 {
 	unsigned long flags;
 	int cpu = get_cpu();
 
-	__sched_fork(p);
+	__sched_fork(clone_flags, p);
 	/*
 	 * We mark the process as running here. This guarantees that
 	 * nobody will actually run it, and a signal or other external
@@ -4287,7 +4291,7 @@ void init_idle(struct task_struct *idle, int cpu)
 
 	raw_spin_lock_irqsave(&rq->lock, flags);
 
-	__sched_fork(idle);
+	__sched_fork(0, idle);
 	idle->state = TASK_RUNNING;
 	idle->se.exec_start = sched_clock();
 
-- 
cgit 


From 83e1d2cd9eabec5164afea295ff06b941ae8e4a9 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:27 +0100
Subject: sched/numa: Use group fault statistics in numa placement

This patch uses the fraction of faults on a particular node for both task
and group, to figure out the best node to place a task.  If the task and
group statistics disagree on what the preferred node should be then a full
rescan will select the node with the best combined weight.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-50-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/sched.h |   1 +
 kernel/sched/fair.c   | 124 +++++++++++++++++++++++++++++++++++++++++++-------
 2 files changed, 108 insertions(+), 17 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 8563e3dd5c0f..724482200b83 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1356,6 +1356,7 @@ struct task_struct {
 	 * The values remain static for the duration of a PTE scan
 	 */
 	unsigned long *numa_faults;
+	unsigned long total_numa_faults;
 
 	/*
 	 * numa_faults_buffer records faults per node during the current
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 35661b8afb4e..4c40e13310e9 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -897,6 +897,7 @@ struct numa_group {
 	struct list_head task_list;
 
 	struct rcu_head rcu;
+	atomic_long_t total_faults;
 	atomic_long_t faults[0];
 };
 
@@ -919,6 +920,51 @@ static inline unsigned long task_faults(struct task_struct *p, int nid)
 		p->numa_faults[task_faults_idx(nid, 1)];
 }
 
+static inline unsigned long group_faults(struct task_struct *p, int nid)
+{
+	if (!p->numa_group)
+		return 0;
+
+	return atomic_long_read(&p->numa_group->faults[2*nid]) +
+	       atomic_long_read(&p->numa_group->faults[2*nid+1]);
+}
+
+/*
+ * These return the fraction of accesses done by a particular task, or
+ * task group, on a particular numa node.  The group weight is given a
+ * larger multiplier, in order to group tasks together that are almost
+ * evenly spread out between numa nodes.
+ */
+static inline unsigned long task_weight(struct task_struct *p, int nid)
+{
+	unsigned long total_faults;
+
+	if (!p->numa_faults)
+		return 0;
+
+	total_faults = p->total_numa_faults;
+
+	if (!total_faults)
+		return 0;
+
+	return 1000 * task_faults(p, nid) / total_faults;
+}
+
+static inline unsigned long group_weight(struct task_struct *p, int nid)
+{
+	unsigned long total_faults;
+
+	if (!p->numa_group)
+		return 0;
+
+	total_faults = atomic_long_read(&p->numa_group->total_faults);
+
+	if (!total_faults)
+		return 0;
+
+	return 1200 * group_faults(p, nid) / total_faults;
+}
+
 static unsigned long weighted_cpuload(const int cpu);
 static unsigned long source_load(int cpu, int type);
 static unsigned long target_load(int cpu, int type);
@@ -1018,8 +1064,10 @@ static void task_numa_compare(struct task_numa_env *env, long imp)
 		if (!cpumask_test_cpu(env->src_cpu, tsk_cpus_allowed(cur)))
 			goto unlock;
 
-		imp += task_faults(cur, env->src_nid) -
-		       task_faults(cur, env->dst_nid);
+		imp += task_weight(cur, env->src_nid) +
+		       group_weight(cur, env->src_nid) -
+		       task_weight(cur, env->dst_nid) -
+		       group_weight(cur, env->dst_nid);
 	}
 
 	if (imp < env->best_imp)
@@ -1098,7 +1146,7 @@ static int task_numa_migrate(struct task_struct *p)
 		.best_cpu = -1
 	};
 	struct sched_domain *sd;
-	unsigned long faults;
+	unsigned long weight;
 	int nid, ret;
 	long imp;
 
@@ -1115,10 +1163,10 @@ static int task_numa_migrate(struct task_struct *p)
 	env.imbalance_pct = 100 + (sd->imbalance_pct - 100) / 2;
 	rcu_read_unlock();
 
-	faults = task_faults(p, env.src_nid);
+	weight = task_weight(p, env.src_nid) + group_weight(p, env.src_nid);
 	update_numa_stats(&env.src_stats, env.src_nid);
 	env.dst_nid = p->numa_preferred_nid;
-	imp = task_faults(env.p, env.dst_nid) - faults;
+	imp = task_weight(p, env.dst_nid) + group_weight(p, env.dst_nid) - weight;
 	update_numa_stats(&env.dst_stats, env.dst_nid);
 
 	/* If the preferred nid has capacity, try to use it. */
@@ -1131,8 +1179,8 @@ static int task_numa_migrate(struct task_struct *p)
 			if (nid == env.src_nid || nid == p->numa_preferred_nid)
 				continue;
 
-			/* Only consider nodes that recorded more faults */
-			imp = task_faults(env.p, nid) - faults;
+			/* Only consider nodes where both task and groups benefit */
+			imp = task_weight(p, nid) + group_weight(p, nid) - weight;
 			if (imp < 0)
 				continue;
 
@@ -1183,8 +1231,8 @@ static void numa_migrate_preferred(struct task_struct *p)
 
 static void task_numa_placement(struct task_struct *p)
 {
-	int seq, nid, max_nid = -1;
-	unsigned long max_faults = 0;
+	int seq, nid, max_nid = -1, max_group_nid = -1;
+	unsigned long max_faults = 0, max_group_faults = 0;
 
 	seq = ACCESS_ONCE(p->mm->numa_scan_seq);
 	if (p->numa_scan_seq == seq)
@@ -1195,7 +1243,7 @@ static void task_numa_placement(struct task_struct *p)
 
 	/* Find the node with the highest number of faults */
 	for_each_online_node(nid) {
-		unsigned long faults = 0;
+		unsigned long faults = 0, group_faults = 0;
 		int priv, i;
 
 		for (priv = 0; priv < 2; priv++) {
@@ -1211,9 +1259,12 @@ static void task_numa_placement(struct task_struct *p)
 
 			faults += p->numa_faults[i];
 			diff += p->numa_faults[i];
+			p->total_numa_faults += diff;
 			if (p->numa_group) {
 				/* safe because we can only change our own group */
 				atomic_long_add(diff, &p->numa_group->faults[i]);
+				atomic_long_add(diff, &p->numa_group->total_faults);
+				group_faults += atomic_long_read(&p->numa_group->faults[i]);
 			}
 		}
 
@@ -1221,6 +1272,27 @@ static void task_numa_placement(struct task_struct *p)
 			max_faults = faults;
 			max_nid = nid;
 		}
+
+		if (group_faults > max_group_faults) {
+			max_group_faults = group_faults;
+			max_group_nid = nid;
+		}
+	}
+
+	/*
+	 * If the preferred task and group nids are different,
+	 * iterate over the nodes again to find the best place.
+	 */
+	if (p->numa_group && max_nid != max_group_nid) {
+		unsigned long weight, max_weight = 0;
+
+		for_each_online_node(nid) {
+			weight = task_weight(p, nid) + group_weight(p, nid);
+			if (weight > max_weight) {
+				max_weight = weight;
+				max_nid = nid;
+			}
+		}
 	}
 
 	/* Preferred node as the node with the most faults */
@@ -1276,6 +1348,8 @@ static void task_numa_group(struct task_struct *p, int cpupid)
 		for (i = 0; i < 2*nr_node_ids; i++)
 			atomic_long_set(&grp->faults[i], p->numa_faults[i]);
 
+		atomic_long_set(&grp->total_faults, p->total_numa_faults);
+
 		list_add(&p->numa_entry, &grp->task_list);
 		grp->nr_tasks++;
 		rcu_assign_pointer(p->numa_group, grp);
@@ -1323,6 +1397,8 @@ unlock:
 		atomic_long_sub(p->numa_faults[i], &my_grp->faults[i]);
 		atomic_long_add(p->numa_faults[i], &grp->faults[i]);
 	}
+	atomic_long_sub(p->total_numa_faults, &my_grp->total_faults);
+	atomic_long_add(p->total_numa_faults, &grp->total_faults);
 
 	double_lock(&my_grp->lock, &grp->lock);
 
@@ -1347,6 +1423,8 @@ void task_numa_free(struct task_struct *p)
 		for (i = 0; i < 2*nr_node_ids; i++)
 			atomic_long_sub(p->numa_faults[i], &grp->faults[i]);
 
+		atomic_long_sub(p->total_numa_faults, &grp->total_faults);
+
 		spin_lock(&grp->lock);
 		list_del(&p->numa_entry);
 		grp->nr_tasks--;
@@ -1385,6 +1463,7 @@ void task_numa_fault(int last_cpupid, int node, int pages, int flags)
 
 		BUG_ON(p->numa_faults_buffer);
 		p->numa_faults_buffer = p->numa_faults + (2 * nr_node_ids);
+		p->total_numa_faults = 0;
 	}
 
 	/*
@@ -4572,12 +4651,17 @@ static bool migrate_improves_locality(struct task_struct *p, struct lb_env *env)
 	src_nid = cpu_to_node(env->src_cpu);
 	dst_nid = cpu_to_node(env->dst_cpu);
 
-	if (src_nid == dst_nid ||
-	    p->numa_migrate_seq >= sysctl_numa_balancing_settle_count)
+	if (src_nid == dst_nid)
 		return false;
 
-	if (dst_nid == p->numa_preferred_nid ||
-	    task_faults(p, dst_nid) > task_faults(p, src_nid))
+	/* Always encourage migration to the preferred node. */
+	if (dst_nid == p->numa_preferred_nid)
+		return true;
+
+	/* After the task has settled, check if the new node is better. */
+	if (p->numa_migrate_seq >= sysctl_numa_balancing_settle_count &&
+			task_weight(p, dst_nid) + group_weight(p, dst_nid) >
+			task_weight(p, src_nid) + group_weight(p, src_nid))
 		return true;
 
 	return false;
@@ -4597,11 +4681,17 @@ static bool migrate_degrades_locality(struct task_struct *p, struct lb_env *env)
 	src_nid = cpu_to_node(env->src_cpu);
 	dst_nid = cpu_to_node(env->dst_cpu);
 
-	if (src_nid == dst_nid ||
-	    p->numa_migrate_seq >= sysctl_numa_balancing_settle_count)
+	if (src_nid == dst_nid)
 		return false;
 
-	if (task_faults(p, dst_nid) < task_faults(p, src_nid))
+	/* Migrating away from the preferred node is always bad. */
+	if (src_nid == p->numa_preferred_nid)
+		return true;
+
+	/* After the task has settled, check if the new node is worse. */
+	if (p->numa_migrate_seq >= sysctl_numa_balancing_settle_count &&
+			task_weight(p, dst_nid) + group_weight(p, dst_nid) <
+			task_weight(p, src_nid) + group_weight(p, src_nid))
 		return true;
 
 	return false;
-- 
cgit 


From 82727018b0d33d188e9916bcf76f18387484cb04 Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Mon, 7 Oct 2013 11:29:28 +0100
Subject: sched/numa: Call task_numa_free() from do_execve()

It is possible for a task in a numa group to call exec, and
have the new (unrelated) executable inherit the numa group
association from its former self.

This has the potential to break numa grouping, and is trivial
to fix.

Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-51-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 fs/exec.c             | 1 +
 include/linux/sched.h | 4 ++++
 kernel/sched/fair.c   | 9 ++++++++-
 kernel/sched/sched.h  | 5 -----
 4 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/fs/exec.c b/fs/exec.c
index 8875dd10ae7a..2ea437e5acf4 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1547,6 +1547,7 @@ static int do_execve_common(const char *filename,
 	current->fs->in_exec = 0;
 	current->in_execve = 0;
 	acct_update_integrals(current);
+	task_numa_free(current);
 	free_bprm(bprm);
 	if (displaced)
 		put_files_struct(displaced);
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 724482200b83..f6385107c352 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1458,6 +1458,7 @@ struct task_struct {
 extern void task_numa_fault(int last_node, int node, int pages, int flags);
 extern pid_t task_numa_group_id(struct task_struct *p);
 extern void set_numabalancing_state(bool enabled);
+extern void task_numa_free(struct task_struct *p);
 #else
 static inline void task_numa_fault(int last_node, int node, int pages,
 				   int flags)
@@ -1470,6 +1471,9 @@ static inline pid_t task_numa_group_id(struct task_struct *p)
 static inline void set_numabalancing_state(bool enabled)
 {
 }
+static inline void task_numa_free(struct task_struct *p)
+{
+}
 #endif
 
 static inline struct pid *task_pid(struct task_struct *task)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 4c40e13310e9..c4df2de6ca4a 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1418,6 +1418,7 @@ void task_numa_free(struct task_struct *p)
 {
 	struct numa_group *grp = p->numa_group;
 	int i;
+	void *numa_faults = p->numa_faults;
 
 	if (grp) {
 		for (i = 0; i < 2*nr_node_ids; i++)
@@ -1433,7 +1434,9 @@ void task_numa_free(struct task_struct *p)
 		put_numa_group(grp);
 	}
 
-	kfree(p->numa_faults);
+	p->numa_faults = NULL;
+	p->numa_faults_buffer = NULL;
+	kfree(numa_faults);
 }
 
 /*
@@ -1452,6 +1455,10 @@ void task_numa_fault(int last_cpupid, int node, int pages, int flags)
 	if (!p->mm)
 		return;
 
+	/* Do not worry about placement if exiting */
+	if (p->state == TASK_DEAD)
+		return;
+
 	/* Allocate buffer to track faults on a per-node basis */
 	if (unlikely(!p->numa_faults)) {
 		int size = sizeof(*p->numa_faults) * 2 * nr_node_ids;
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 8037b10a256f..eeb1923812a1 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -559,11 +559,6 @@ static inline u64 rq_clock_task(struct rq *rq)
 #ifdef CONFIG_NUMA_BALANCING
 extern int migrate_task_to(struct task_struct *p, int cpu);
 extern int migrate_swap(struct task_struct *, struct task_struct *);
-extern void task_numa_free(struct task_struct *p);
-#else /* CONFIG_NUMA_BALANCING */
-static inline void task_numa_free(struct task_struct *p)
-{
-}
 #endif /* CONFIG_NUMA_BALANCING */
 
 #ifdef CONFIG_SMP
-- 
cgit 


From 7dbd13ed06513b047216a7ffc718bad9df0660f1 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:29 +0100
Subject: sched/numa: Prevent parallel updates to group stats during placement

Having multiple tasks in a group go through task_numa_placement
simultaneously can lead to a task picking a wrong node to run on, because
the group stats may be in the middle of an update. This patch avoids
parallel updates by holding the numa_group lock during placement
decisions.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-52-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 35 +++++++++++++++++++++++------------
 1 file changed, 23 insertions(+), 12 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index c4df2de6ca4a..147349987bfe 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1233,6 +1233,7 @@ static void task_numa_placement(struct task_struct *p)
 {
 	int seq, nid, max_nid = -1, max_group_nid = -1;
 	unsigned long max_faults = 0, max_group_faults = 0;
+	spinlock_t *group_lock = NULL;
 
 	seq = ACCESS_ONCE(p->mm->numa_scan_seq);
 	if (p->numa_scan_seq == seq)
@@ -1241,6 +1242,12 @@ static void task_numa_placement(struct task_struct *p)
 	p->numa_migrate_seq++;
 	p->numa_scan_period_max = task_scan_max(p);
 
+	/* If the task is part of a group prevent parallel updates to group stats */
+	if (p->numa_group) {
+		group_lock = &p->numa_group->lock;
+		spin_lock(group_lock);
+	}
+
 	/* Find the node with the highest number of faults */
 	for_each_online_node(nid) {
 		unsigned long faults = 0, group_faults = 0;
@@ -1279,20 +1286,24 @@ static void task_numa_placement(struct task_struct *p)
 		}
 	}
 
-	/*
-	 * If the preferred task and group nids are different,
-	 * iterate over the nodes again to find the best place.
-	 */
-	if (p->numa_group && max_nid != max_group_nid) {
-		unsigned long weight, max_weight = 0;
-
-		for_each_online_node(nid) {
-			weight = task_weight(p, nid) + group_weight(p, nid);
-			if (weight > max_weight) {
-				max_weight = weight;
-				max_nid = nid;
+	if (p->numa_group) {
+		/*
+		 * If the preferred task and group nids are different,
+		 * iterate over the nodes again to find the best place.
+		 */
+		if (max_nid != max_group_nid) {
+			unsigned long weight, max_weight = 0;
+
+			for_each_online_node(nid) {
+				weight = task_weight(p, nid) + group_weight(p, nid);
+				if (weight > max_weight) {
+					max_weight = weight;
+					max_nid = nid;
+				}
 			}
 		}
+
+		spin_unlock(group_lock);
 	}
 
 	/* Preferred node as the node with the most faults */
-- 
cgit 


From b32e86b4301e345611f0446265f782a229faadf6 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 7 Oct 2013 11:29:30 +0100
Subject: sched/numa: Add debugging

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: http://lkml.kernel.org/r/1381141781-10992-53-git-send-email-mgorman@suse.de
---
 include/linux/sched.h |  6 ++++++
 kernel/sched/debug.c  | 60 +++++++++++++++++++++++++++++++++++++++++++++++++--
 kernel/sched/fair.c   |  5 ++++-
 3 files changed, 68 insertions(+), 3 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index f6385107c352..1127a46ac3d2 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1366,6 +1366,7 @@ struct task_struct {
 	unsigned long *numa_faults_buffer;
 
 	int numa_preferred_nid;
+	unsigned long numa_pages_migrated;
 #endif /* CONFIG_NUMA_BALANCING */
 
 	struct rcu_head rcu;
@@ -2661,6 +2662,11 @@ static inline unsigned int task_cpu(const struct task_struct *p)
 	return task_thread_info(p)->cpu;
 }
 
+static inline int task_node(const struct task_struct *p)
+{
+	return cpu_to_node(task_cpu(p));
+}
+
 extern void set_task_cpu(struct task_struct *p, unsigned int cpu);
 
 #else
diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index 196559994f7c..e6ba5e31c7ca 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -15,6 +15,7 @@
 #include <linux/seq_file.h>
 #include <linux/kallsyms.h>
 #include <linux/utsname.h>
+#include <linux/mempolicy.h>
 
 #include "sched.h"
 
@@ -137,6 +138,9 @@ print_task(struct seq_file *m, struct rq *rq, struct task_struct *p)
 	SEQ_printf(m, "%15Ld %15Ld %15Ld.%06ld %15Ld.%06ld %15Ld.%06ld",
 		0LL, 0LL, 0LL, 0L, 0LL, 0L, 0LL, 0L);
 #endif
+#ifdef CONFIG_NUMA_BALANCING
+	SEQ_printf(m, " %d", cpu_to_node(task_cpu(p)));
+#endif
 #ifdef CONFIG_CGROUP_SCHED
 	SEQ_printf(m, " %s", task_group_path(task_group(p)));
 #endif
@@ -159,7 +163,7 @@ static void print_rq(struct seq_file *m, struct rq *rq, int rq_cpu)
 	read_lock_irqsave(&tasklist_lock, flags);
 
 	do_each_thread(g, p) {
-		if (!p->on_rq || task_cpu(p) != rq_cpu)
+		if (task_cpu(p) != rq_cpu)
 			continue;
 
 		print_task(m, rq, p);
@@ -345,7 +349,7 @@ static void sched_debug_header(struct seq_file *m)
 	cpu_clk = local_clock();
 	local_irq_restore(flags);
 
-	SEQ_printf(m, "Sched Debug Version: v0.10, %s %.*s\n",
+	SEQ_printf(m, "Sched Debug Version: v0.11, %s %.*s\n",
 		init_utsname()->release,
 		(int)strcspn(init_utsname()->version, " "),
 		init_utsname()->version);
@@ -488,6 +492,56 @@ static int __init init_sched_debug_procfs(void)
 
 __initcall(init_sched_debug_procfs);
 
+#define __P(F) \
+	SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)F)
+#define P(F) \
+	SEQ_printf(m, "%-45s:%21Ld\n", #F, (long long)p->F)
+#define __PN(F) \
+	SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)F))
+#define PN(F) \
+	SEQ_printf(m, "%-45s:%14Ld.%06ld\n", #F, SPLIT_NS((long long)p->F))
+
+
+static void sched_show_numa(struct task_struct *p, struct seq_file *m)
+{
+#ifdef CONFIG_NUMA_BALANCING
+	struct mempolicy *pol;
+	int node, i;
+
+	if (p->mm)
+		P(mm->numa_scan_seq);
+
+	task_lock(p);
+	pol = p->mempolicy;
+	if (pol && !(pol->flags & MPOL_F_MORON))
+		pol = NULL;
+	mpol_get(pol);
+	task_unlock(p);
+
+	SEQ_printf(m, "numa_migrations, %ld\n", xchg(&p->numa_pages_migrated, 0));
+
+	for_each_online_node(node) {
+		for (i = 0; i < 2; i++) {
+			unsigned long nr_faults = -1;
+			int cpu_current, home_node;
+
+			if (p->numa_faults)
+				nr_faults = p->numa_faults[2*node + i];
+
+			cpu_current = !i ? (task_node(p) == node) :
+				(pol && node_isset(node, pol->v.nodes));
+
+			home_node = (p->numa_preferred_nid == node);
+
+			SEQ_printf(m, "numa_faults, %d, %d, %d, %d, %ld\n",
+				i, node, cpu_current, home_node, nr_faults);
+		}
+	}
+
+	mpol_put(pol);
+#endif
+}
+
 void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
 {
 	unsigned long nr_switches;
@@ -591,6 +645,8 @@ void proc_sched_show_task(struct task_struct *p, struct seq_file *m)
 		SEQ_printf(m, "%-45s:%21Ld\n",
 			   "clock-delta", (long long)(t1-t0));
 	}
+
+	sched_show_numa(p, m);
 }
 
 void proc_sched_set_task(struct task_struct *p)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 147349987bfe..2876a37cdfc4 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1137,7 +1137,7 @@ static int task_numa_migrate(struct task_struct *p)
 		.p = p,
 
 		.src_cpu = task_cpu(p),
-		.src_nid = cpu_to_node(task_cpu(p)),
+		.src_nid = task_node(p),
 
 		.imbalance_pct = 112,
 
@@ -1515,6 +1515,9 @@ void task_numa_fault(int last_cpupid, int node, int pages, int flags)
 	if (p->numa_migrate_retry && time_after(jiffies, p->numa_migrate_retry))
 		numa_migrate_preferred(p);
 
+	if (migrated)
+		p->numa_pages_migrated += pages;
+
 	p->numa_faults_buffer[task_faults_idx(node, priv)] += pages;
 }
 
-- 
cgit 


From 887c290e82e8950d854730c084904c115fc367ac Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Mon, 7 Oct 2013 11:29:31 +0100
Subject: sched/numa: Decide whether to favour task or group weights based on
 swap candidate relationships

This patch separately considers task and group affinities when searching
for swap candidates during task NUMA placement. If tasks are not part of
a group or the same group then the task weights are considered.
Otherwise the group weights are compared.

Signed-off-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-54-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 59 ++++++++++++++++++++++++++++++++---------------------
 1 file changed, 36 insertions(+), 23 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 2876a37cdfc4..6f454616fa86 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1039,13 +1039,15 @@ static void task_numa_assign(struct task_numa_env *env,
  * into account that it might be best if task running on the dst_cpu should
  * be exchanged with the source task
  */
-static void task_numa_compare(struct task_numa_env *env, long imp)
+static void task_numa_compare(struct task_numa_env *env,
+			      long taskimp, long groupimp)
 {
 	struct rq *src_rq = cpu_rq(env->src_cpu);
 	struct rq *dst_rq = cpu_rq(env->dst_cpu);
 	struct task_struct *cur;
 	long dst_load, src_load;
 	long load;
+	long imp = (groupimp > 0) ? groupimp : taskimp;
 
 	rcu_read_lock();
 	cur = ACCESS_ONCE(dst_rq->curr);
@@ -1064,10 +1066,19 @@ static void task_numa_compare(struct task_numa_env *env, long imp)
 		if (!cpumask_test_cpu(env->src_cpu, tsk_cpus_allowed(cur)))
 			goto unlock;
 
-		imp += task_weight(cur, env->src_nid) +
-		       group_weight(cur, env->src_nid) -
-		       task_weight(cur, env->dst_nid) -
-		       group_weight(cur, env->dst_nid);
+		/*
+		 * If dst and source tasks are in the same NUMA group, or not
+		 * in any group then look only at task weights otherwise give
+		 * priority to the group weights.
+		 */
+		if (!cur->numa_group || !env->p->numa_group ||
+		    cur->numa_group == env->p->numa_group) {
+			imp = taskimp + task_weight(cur, env->src_nid) -
+			      task_weight(cur, env->dst_nid);
+		} else {
+			imp = groupimp + group_weight(cur, env->src_nid) -
+			       group_weight(cur, env->dst_nid);
+		}
 	}
 
 	if (imp < env->best_imp)
@@ -1117,7 +1128,8 @@ unlock:
 	rcu_read_unlock();
 }
 
-static void task_numa_find_cpu(struct task_numa_env *env, long imp)
+static void task_numa_find_cpu(struct task_numa_env *env,
+				long taskimp, long groupimp)
 {
 	int cpu;
 
@@ -1127,7 +1139,7 @@ static void task_numa_find_cpu(struct task_numa_env *env, long imp)
 			continue;
 
 		env->dst_cpu = cpu;
-		task_numa_compare(env, imp);
+		task_numa_compare(env, taskimp, groupimp);
 	}
 }
 
@@ -1146,9 +1158,9 @@ static int task_numa_migrate(struct task_struct *p)
 		.best_cpu = -1
 	};
 	struct sched_domain *sd;
-	unsigned long weight;
+	unsigned long taskweight, groupweight;
 	int nid, ret;
-	long imp;
+	long taskimp, groupimp;
 
 	/*
 	 * Pick the lowest SD_NUMA domain, as that would have the smallest
@@ -1163,15 +1175,17 @@ static int task_numa_migrate(struct task_struct *p)
 	env.imbalance_pct = 100 + (sd->imbalance_pct - 100) / 2;
 	rcu_read_unlock();
 
-	weight = task_weight(p, env.src_nid) + group_weight(p, env.src_nid);
+	taskweight = task_weight(p, env.src_nid);
+	groupweight = group_weight(p, env.src_nid);
 	update_numa_stats(&env.src_stats, env.src_nid);
 	env.dst_nid = p->numa_preferred_nid;
-	imp = task_weight(p, env.dst_nid) + group_weight(p, env.dst_nid) - weight;
+	taskimp = task_weight(p, env.dst_nid) - taskweight;
+	groupimp = group_weight(p, env.dst_nid) - groupweight;
 	update_numa_stats(&env.dst_stats, env.dst_nid);
 
 	/* If the preferred nid has capacity, try to use it. */
 	if (env.dst_stats.has_capacity)
-		task_numa_find_cpu(&env, imp);
+		task_numa_find_cpu(&env, taskimp, groupimp);
 
 	/* No space available on the preferred nid. Look elsewhere. */
 	if (env.best_cpu == -1) {
@@ -1180,13 +1194,14 @@ static int task_numa_migrate(struct task_struct *p)
 				continue;
 
 			/* Only consider nodes where both task and groups benefit */
-			imp = task_weight(p, nid) + group_weight(p, nid) - weight;
-			if (imp < 0)
+			taskimp = task_weight(p, nid) - taskweight;
+			groupimp = group_weight(p, nid) - groupweight;
+			if (taskimp < 0 && groupimp < 0)
 				continue;
 
 			env.dst_nid = nid;
 			update_numa_stats(&env.dst_stats, env.dst_nid);
-			task_numa_find_cpu(&env, imp);
+			task_numa_find_cpu(&env, taskimp, groupimp);
 		}
 	}
 
@@ -4679,10 +4694,9 @@ static bool migrate_improves_locality(struct task_struct *p, struct lb_env *env)
 	if (dst_nid == p->numa_preferred_nid)
 		return true;
 
-	/* After the task has settled, check if the new node is better. */
-	if (p->numa_migrate_seq >= sysctl_numa_balancing_settle_count &&
-			task_weight(p, dst_nid) + group_weight(p, dst_nid) >
-			task_weight(p, src_nid) + group_weight(p, src_nid))
+	/* If both task and group weight improve, this move is a winner. */
+	if (task_weight(p, dst_nid) > task_weight(p, src_nid) &&
+	    group_weight(p, dst_nid) > group_weight(p, src_nid))
 		return true;
 
 	return false;
@@ -4709,10 +4723,9 @@ static bool migrate_degrades_locality(struct task_struct *p, struct lb_env *env)
 	if (src_nid == p->numa_preferred_nid)
 		return true;
 
-	/* After the task has settled, check if the new node is worse. */
-	if (p->numa_migrate_seq >= sysctl_numa_balancing_settle_count &&
-			task_weight(p, dst_nid) + group_weight(p, dst_nid) <
-			task_weight(p, src_nid) + group_weight(p, src_nid))
+	/* If either task or group weight get worse, don't do it. */
+	if (task_weight(p, dst_nid) < task_weight(p, src_nid) ||
+	    group_weight(p, dst_nid) < group_weight(p, src_nid))
 		return true;
 
 	return false;
-- 
cgit 


From ca28aa53dd95868c9e38917b9881c09dacfacf1a Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Mon, 7 Oct 2013 11:29:32 +0100
Subject: sched/numa: Fix task or group comparison

This patch separately considers task and group affinities when
searching for swap candidates during NUMA placement. If tasks
are part of the same group, or no group at all, the task weights
are considered.

Some hysteresis is added to prevent tasks within one group from
getting bounced between NUMA nodes due to tiny differences.

If tasks are part of different groups, the code compares group
weights, in order to favor grouping task groups together.

The patch also changes the group weight multiplier to be the
same as the task weight multiplier, since the two are no longer
added up like before.

Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-55-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 32 +++++++++++++++++++++++++-------
 1 file changed, 25 insertions(+), 7 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 6f454616fa86..423316cdee07 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -962,7 +962,7 @@ static inline unsigned long group_weight(struct task_struct *p, int nid)
 	if (!total_faults)
 		return 0;
 
-	return 1200 * group_faults(p, nid) / total_faults;
+	return 1000 * group_faults(p, nid) / total_faults;
 }
 
 static unsigned long weighted_cpuload(const int cpu);
@@ -1068,16 +1068,34 @@ static void task_numa_compare(struct task_numa_env *env,
 
 		/*
 		 * If dst and source tasks are in the same NUMA group, or not
-		 * in any group then look only at task weights otherwise give
-		 * priority to the group weights.
+		 * in any group then look only at task weights.
 		 */
-		if (!cur->numa_group || !env->p->numa_group ||
-		    cur->numa_group == env->p->numa_group) {
+		if (cur->numa_group == env->p->numa_group) {
 			imp = taskimp + task_weight(cur, env->src_nid) -
 			      task_weight(cur, env->dst_nid);
+			/*
+			 * Add some hysteresis to prevent swapping the
+			 * tasks within a group over tiny differences.
+			 */
+			if (cur->numa_group)
+				imp -= imp/16;
 		} else {
-			imp = groupimp + group_weight(cur, env->src_nid) -
-			       group_weight(cur, env->dst_nid);
+			/*
+			 * Compare the group weights. If a task is all by
+			 * itself (not part of a group), use the task weight
+			 * instead.
+			 */
+			if (env->p->numa_group)
+				imp = groupimp;
+			else
+				imp = taskimp;
+
+			if (cur->numa_group)
+				imp += group_weight(cur, env->src_nid) -
+				       group_weight(cur, env->dst_nid);
+			else
+				imp += task_weight(cur, env->src_nid) -
+				       task_weight(cur, env->dst_nid);
 		}
 	}
 
-- 
cgit 


From 0ec8aa00f2b4dc457836ef4e2662b02483e94fb7 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 7 Oct 2013 11:29:33 +0100
Subject: sched/numa: Avoid migrating tasks that are placed on their preferred
 node

This patch classifies scheduler domains and runqueues into types depending
the number of tasks that are about their NUMA placement and the number
that are currently running on their preferred node. The types are

regular: There are tasks running that do not care about their NUMA
	placement.

remote: There are tasks running that care about their placement but are
	currently running on a node remote to their ideal placement

all: No distinction

To implement this the patch tracks the number of tasks that are optimally
NUMA placed (rq->nr_preferred_running) and the number of tasks running
that care about their placement (nr_numa_running). The load balancer
uses this information to avoid migrating idea placed NUMA tasks as long
as better options for load balancing exists. For example, it will not
consider balancing between a group whose tasks are all perfectly placed
and a group with remote tasks.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1381141781-10992-56-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/core.c  |  29 +++++++++++++
 kernel/sched/fair.c  | 120 +++++++++++++++++++++++++++++++++++++++++++++------
 kernel/sched/sched.h |   5 +++
 3 files changed, 142 insertions(+), 12 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 3e2c893df173..8cfd51f62241 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4468,6 +4468,35 @@ int migrate_task_to(struct task_struct *p, int target_cpu)
 
 	return stop_one_cpu(curr_cpu, migration_cpu_stop, &arg);
 }
+
+/*
+ * Requeue a task on a given node and accurately track the number of NUMA
+ * tasks on the runqueues
+ */
+void sched_setnuma(struct task_struct *p, int nid)
+{
+	struct rq *rq;
+	unsigned long flags;
+	bool on_rq, running;
+
+	rq = task_rq_lock(p, &flags);
+	on_rq = p->on_rq;
+	running = task_current(rq, p);
+
+	if (on_rq)
+		dequeue_task(rq, p, 0);
+	if (running)
+		p->sched_class->put_prev_task(rq, p);
+
+	p->numa_preferred_nid = nid;
+	p->numa_migrate_seq = 1;
+
+	if (running)
+		p->sched_class->set_curr_task(rq);
+	if (on_rq)
+		enqueue_task(rq, p, 0);
+	task_rq_unlock(rq, p, &flags);
+}
 #endif
 
 /*
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 423316cdee07..5166b9b1af70 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -888,6 +888,18 @@ static unsigned int task_scan_max(struct task_struct *p)
  */
 unsigned int sysctl_numa_balancing_settle_count __read_mostly = 4;
 
+static void account_numa_enqueue(struct rq *rq, struct task_struct *p)
+{
+	rq->nr_numa_running += (p->numa_preferred_nid != -1);
+	rq->nr_preferred_running += (p->numa_preferred_nid == task_node(p));
+}
+
+static void account_numa_dequeue(struct rq *rq, struct task_struct *p)
+{
+	rq->nr_numa_running -= (p->numa_preferred_nid != -1);
+	rq->nr_preferred_running -= (p->numa_preferred_nid == task_node(p));
+}
+
 struct numa_group {
 	atomic_t refcount;
 
@@ -1227,6 +1239,8 @@ static int task_numa_migrate(struct task_struct *p)
 	if (env.best_cpu == -1)
 		return -EAGAIN;
 
+	sched_setnuma(p, env.dst_nid);
+
 	if (env.best_task == NULL) {
 		int ret = migrate_task_to(p, env.best_cpu);
 		return ret;
@@ -1342,8 +1356,7 @@ static void task_numa_placement(struct task_struct *p)
 	/* Preferred node as the node with the most faults */
 	if (max_faults && max_nid != p->numa_preferred_nid) {
 		/* Update the preferred nid and migrate task if possible */
-		p->numa_preferred_nid = max_nid;
-		p->numa_migrate_seq = 1;
+		sched_setnuma(p, max_nid);
 		numa_migrate_preferred(p);
 	}
 }
@@ -1741,6 +1754,14 @@ void task_tick_numa(struct rq *rq, struct task_struct *curr)
 static void task_tick_numa(struct rq *rq, struct task_struct *curr)
 {
 }
+
+static inline void account_numa_enqueue(struct rq *rq, struct task_struct *p)
+{
+}
+
+static inline void account_numa_dequeue(struct rq *rq, struct task_struct *p)
+{
+}
 #endif /* CONFIG_NUMA_BALANCING */
 
 static void
@@ -1750,8 +1771,12 @@ account_entity_enqueue(struct cfs_rq *cfs_rq, struct sched_entity *se)
 	if (!parent_entity(se))
 		update_load_add(&rq_of(cfs_rq)->load, se->load.weight);
 #ifdef CONFIG_SMP
-	if (entity_is_task(se))
-		list_add(&se->group_node, &rq_of(cfs_rq)->cfs_tasks);
+	if (entity_is_task(se)) {
+		struct rq *rq = rq_of(cfs_rq);
+
+		account_numa_enqueue(rq, task_of(se));
+		list_add(&se->group_node, &rq->cfs_tasks);
+	}
 #endif
 	cfs_rq->nr_running++;
 }
@@ -1762,8 +1787,10 @@ account_entity_dequeue(struct cfs_rq *cfs_rq, struct sched_entity *se)
 	update_load_sub(&cfs_rq->load, se->load.weight);
 	if (!parent_entity(se))
 		update_load_sub(&rq_of(cfs_rq)->load, se->load.weight);
-	if (entity_is_task(se))
+	if (entity_is_task(se)) {
+		account_numa_dequeue(rq_of(cfs_rq), task_of(se));
 		list_del_init(&se->group_node);
+	}
 	cfs_rq->nr_running--;
 }
 
@@ -4605,6 +4632,8 @@ static bool yield_to_task_fair(struct rq *rq, struct task_struct *p, bool preemp
 
 static unsigned long __read_mostly max_load_balance_interval = HZ/10;
 
+enum fbq_type { regular, remote, all };
+
 #define LBF_ALL_PINNED	0x01
 #define LBF_NEED_BREAK	0x02
 #define LBF_DST_PINNED  0x04
@@ -4631,6 +4660,8 @@ struct lb_env {
 	unsigned int		loop;
 	unsigned int		loop_break;
 	unsigned int		loop_max;
+
+	enum fbq_type		fbq_type;
 };
 
 /*
@@ -5092,6 +5123,10 @@ struct sg_lb_stats {
 	unsigned int group_weight;
 	int group_imb; /* Is there an imbalance in the group ? */
 	int group_has_capacity; /* Is there extra capacity in the group? */
+#ifdef CONFIG_NUMA_BALANCING
+	unsigned int nr_numa_running;
+	unsigned int nr_preferred_running;
+#endif
 };
 
 /*
@@ -5409,6 +5444,10 @@ static inline void update_sg_lb_stats(struct lb_env *env,
 
 		sgs->group_load += load;
 		sgs->sum_nr_running += nr_running;
+#ifdef CONFIG_NUMA_BALANCING
+		sgs->nr_numa_running += rq->nr_numa_running;
+		sgs->nr_preferred_running += rq->nr_preferred_running;
+#endif
 		sgs->sum_weighted_load += weighted_cpuload(i);
 		if (idle_cpu(i))
 			sgs->idle_cpus++;
@@ -5474,14 +5513,43 @@ static bool update_sd_pick_busiest(struct lb_env *env,
 	return false;
 }
 
+#ifdef CONFIG_NUMA_BALANCING
+static inline enum fbq_type fbq_classify_group(struct sg_lb_stats *sgs)
+{
+	if (sgs->sum_nr_running > sgs->nr_numa_running)
+		return regular;
+	if (sgs->sum_nr_running > sgs->nr_preferred_running)
+		return remote;
+	return all;
+}
+
+static inline enum fbq_type fbq_classify_rq(struct rq *rq)
+{
+	if (rq->nr_running > rq->nr_numa_running)
+		return regular;
+	if (rq->nr_running > rq->nr_preferred_running)
+		return remote;
+	return all;
+}
+#else
+static inline enum fbq_type fbq_classify_group(struct sg_lb_stats *sgs)
+{
+	return all;
+}
+
+static inline enum fbq_type fbq_classify_rq(struct rq *rq)
+{
+	return regular;
+}
+#endif /* CONFIG_NUMA_BALANCING */
+
 /**
  * update_sd_lb_stats - Update sched_domain's statistics for load balancing.
  * @env: The load balancing environment.
  * @balance: Should we balance.
  * @sds: variable to hold the statistics for this sched_domain.
  */
-static inline void update_sd_lb_stats(struct lb_env *env,
-					struct sd_lb_stats *sds)
+static inline void update_sd_lb_stats(struct lb_env *env, struct sd_lb_stats *sds)
 {
 	struct sched_domain *child = env->sd->child;
 	struct sched_group *sg = env->sd->groups;
@@ -5538,6 +5606,9 @@ next_group:
 
 		sg = sg->next;
 	} while (sg != env->sd->groups);
+
+	if (env->sd->flags & SD_NUMA)
+		env->fbq_type = fbq_classify_group(&sds->busiest_stat);
 }
 
 /**
@@ -5841,15 +5912,39 @@ static struct rq *find_busiest_queue(struct lb_env *env,
 	int i;
 
 	for_each_cpu_and(i, sched_group_cpus(group), env->cpus) {
-		unsigned long power = power_of(i);
-		unsigned long capacity = DIV_ROUND_CLOSEST(power,
-							   SCHED_POWER_SCALE);
-		unsigned long wl;
+		unsigned long power, capacity, wl;
+		enum fbq_type rt;
+
+		rq = cpu_rq(i);
+		rt = fbq_classify_rq(rq);
 
+		/*
+		 * We classify groups/runqueues into three groups:
+		 *  - regular: there are !numa tasks
+		 *  - remote:  there are numa tasks that run on the 'wrong' node
+		 *  - all:     there is no distinction
+		 *
+		 * In order to avoid migrating ideally placed numa tasks,
+		 * ignore those when there's better options.
+		 *
+		 * If we ignore the actual busiest queue to migrate another
+		 * task, the next balance pass can still reduce the busiest
+		 * queue by moving tasks around inside the node.
+		 *
+		 * If we cannot move enough load due to this classification
+		 * the next pass will adjust the group classification and
+		 * allow migration of more tasks.
+		 *
+		 * Both cases only affect the total convergence complexity.
+		 */
+		if (rt > env->fbq_type)
+			continue;
+
+		power = power_of(i);
+		capacity = DIV_ROUND_CLOSEST(power, SCHED_POWER_SCALE);
 		if (!capacity)
 			capacity = fix_small_capacity(env->sd, group);
 
-		rq = cpu_rq(i);
 		wl = weighted_cpuload(i);
 
 		/*
@@ -5966,6 +6061,7 @@ static int load_balance(int this_cpu, struct rq *this_rq,
 		.idle		= idle,
 		.loop_break	= sched_nr_migrate_break,
 		.cpus		= cpus,
+		.fbq_type	= all,
 	};
 
 	/*
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index eeb1923812a1..d69cb325c27e 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -409,6 +409,10 @@ struct rq {
 	 * remote CPUs use both these fields when doing load calculation.
 	 */
 	unsigned int nr_running;
+#ifdef CONFIG_NUMA_BALANCING
+	unsigned int nr_numa_running;
+	unsigned int nr_preferred_running;
+#endif
 	#define CPU_LOAD_IDX_MAX 5
 	unsigned long cpu_load[CPU_LOAD_IDX_MAX];
 	unsigned long last_load_update_tick;
@@ -557,6 +561,7 @@ static inline u64 rq_clock_task(struct rq *rq)
 }
 
 #ifdef CONFIG_NUMA_BALANCING
+extern void sched_setnuma(struct task_struct *p, int node);
 extern int migrate_task_to(struct task_struct *p, int cpu);
 extern int migrate_swap(struct task_struct *, struct task_struct *);
 #endif /* CONFIG_NUMA_BALANCING */
-- 
cgit 


From dabe1d992414a6456e60e41f1d1ad8affc6d444d Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Mon, 7 Oct 2013 11:29:34 +0100
Subject: sched/numa: Be more careful about joining numa groups

Due to the way the pid is truncated, and tasks are moved between
CPUs by the scheduler, it is possible for the current task_numa_fault
to group together tasks that do not actually share memory together.

This patch adds a few easy sanity checks to task_numa_fault, joining
tasks together if they share the same tsk->mm, or if the fault was on
a page with an elevated mapcount, in a shared VMA.

Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-57-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/sched.h |  1 +
 kernel/sched/fair.c   | 16 +++++++++++-----
 mm/memory.c           |  7 +++++++
 3 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 1127a46ac3d2..59f953b2e413 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1454,6 +1454,7 @@ struct task_struct {
 
 #define TNF_MIGRATED	0x01
 #define TNF_NO_GROUP	0x02
+#define TNF_SHARED	0x04
 
 #ifdef CONFIG_NUMA_BALANCING
 extern void task_numa_fault(int last_node, int node, int pages, int flags);
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 5166b9b1af70..222c2d0b6ae2 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1381,7 +1381,7 @@ static void double_lock(spinlock_t *l1, spinlock_t *l2)
 	spin_lock_nested(l2, SINGLE_DEPTH_NESTING);
 }
 
-static void task_numa_group(struct task_struct *p, int cpupid)
+static void task_numa_group(struct task_struct *p, int cpupid, int flags)
 {
 	struct numa_group *grp, *my_grp;
 	struct task_struct *tsk;
@@ -1439,10 +1439,16 @@ static void task_numa_group(struct task_struct *p, int cpupid)
 	if (my_grp->nr_tasks == grp->nr_tasks && my_grp > grp)
 		goto unlock;
 
-	if (!get_numa_group(grp))
-		goto unlock;
+	/* Always join threads in the same process. */
+	if (tsk->mm == current->mm)
+		join = true;
+
+	/* Simple filter to avoid false positives due to PID collisions */
+	if (flags & TNF_SHARED)
+		join = true;
 
-	join = true;
+	if (join && !get_numa_group(grp))
+		join = false;
 
 unlock:
 	rcu_read_unlock();
@@ -1539,7 +1545,7 @@ void task_numa_fault(int last_cpupid, int node, int pages, int flags)
 	} else {
 		priv = cpupid_match_pid(p, last_cpupid);
 		if (!priv && !(flags & TNF_NO_GROUP))
-			task_numa_group(p, last_cpupid);
+			task_numa_group(p, last_cpupid, flags);
 	}
 
 	/*
diff --git a/mm/memory.c b/mm/memory.c
index 9898eeb9a21c..823720c43ea9 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3584,6 +3584,13 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	if (!pte_write(pte))
 		flags |= TNF_NO_GROUP;
 
+	/*
+	 * Flag if the page is shared between multiple address spaces. This
+	 * is later used when determining whether to group tasks together
+	 */
+	if (page_mapcount(page) > 1 && (vma->vm_flags & VM_SHARED))
+		flags |= TNF_SHARED;
+
 	last_cpupid = page_cpupid_last(page);
 	page_nid = page_to_nid(page);
 	target_nid = numa_migrate_prep(page, vma, addr, page_nid);
-- 
cgit 


From 3e6a9418cf05638b103e34f5d13be0321872e623 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:35 +0100
Subject: sched/numa: Take false sharing into account when adapting scan rate

Scan rate is altered based on whether shared/private faults dominated.
task_numa_group() may detect false sharing but that information is not
taken into account when adapting the scan rate. Take it into account.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-58-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 222c2d0b6ae2..d26a16e45437 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1381,7 +1381,8 @@ static void double_lock(spinlock_t *l1, spinlock_t *l2)
 	spin_lock_nested(l2, SINGLE_DEPTH_NESTING);
 }
 
-static void task_numa_group(struct task_struct *p, int cpupid, int flags)
+static void task_numa_group(struct task_struct *p, int cpupid, int flags,
+			int *priv)
 {
 	struct numa_group *grp, *my_grp;
 	struct task_struct *tsk;
@@ -1447,6 +1448,9 @@ static void task_numa_group(struct task_struct *p, int cpupid, int flags)
 	if (flags & TNF_SHARED)
 		join = true;
 
+	/* Update priv based on whether false sharing was detected */
+	*priv = !join;
+
 	if (join && !get_numa_group(grp))
 		join = false;
 
@@ -1545,7 +1549,7 @@ void task_numa_fault(int last_cpupid, int node, int pages, int flags)
 	} else {
 		priv = cpupid_match_pid(p, last_cpupid);
 		if (!priv && !(flags & TNF_NO_GROUP))
-			task_numa_group(p, last_cpupid, flags);
+			task_numa_group(p, last_cpupid, flags, &priv);
 	}
 
 	/*
-- 
cgit 


From 04bb2f9475054298f0c67a89ca92cade42d3fe5e Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Mon, 7 Oct 2013 11:29:36 +0100
Subject: sched/numa: Adjust scan rate in task_numa_placement

Adjust numa_scan_period in task_numa_placement, depending on how much
useful work the numa code can do. The more local faults there are in a
given scan window the longer the period (and hence the slower the scan rate)
during the next window. If there are excessive shared faults then the scan
period will decrease with the amount of scaling depending on whether the
ratio of shared/private faults. If the preferred node changes then the
scan rate is reset to recheck if the task is properly placed.

Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-59-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/sched.h |   9 ++++
 kernel/sched/fair.c   | 112 +++++++++++++++++++++++++++++++++++++++-----------
 mm/huge_memory.c      |   4 +-
 mm/memory.c           |   9 ++--
 4 files changed, 105 insertions(+), 29 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 59f953b2e413..2292f6c1596f 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1365,6 +1365,14 @@ struct task_struct {
 	 */
 	unsigned long *numa_faults_buffer;
 
+	/*
+	 * numa_faults_locality tracks if faults recorded during the last
+	 * scan window were remote/local. The task scan period is adapted
+	 * based on the locality of the faults with different weights
+	 * depending on whether they were shared or private faults
+	 */
+	unsigned long numa_faults_locality[2];
+
 	int numa_preferred_nid;
 	unsigned long numa_pages_migrated;
 #endif /* CONFIG_NUMA_BALANCING */
@@ -1455,6 +1463,7 @@ struct task_struct {
 #define TNF_MIGRATED	0x01
 #define TNF_NO_GROUP	0x02
 #define TNF_SHARED	0x04
+#define TNF_FAULT_LOCAL	0x08
 
 #ifdef CONFIG_NUMA_BALANCING
 extern void task_numa_fault(int last_node, int node, int pages, int flags);
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index d26a16e45437..66237ff8b01e 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1241,6 +1241,12 @@ static int task_numa_migrate(struct task_struct *p)
 
 	sched_setnuma(p, env.dst_nid);
 
+	/*
+	 * Reset the scan period if the task is being rescheduled on an
+	 * alternative node to recheck if the tasks is now properly placed.
+	 */
+	p->numa_scan_period = task_scan_min(p);
+
 	if (env.best_task == NULL) {
 		int ret = migrate_task_to(p, env.best_cpu);
 		return ret;
@@ -1276,10 +1282,86 @@ static void numa_migrate_preferred(struct task_struct *p)
 		p->numa_migrate_retry = jiffies + HZ*5;
 }
 
+/*
+ * When adapting the scan rate, the period is divided into NUMA_PERIOD_SLOTS
+ * increments. The more local the fault statistics are, the higher the scan
+ * period will be for the next scan window. If local/remote ratio is below
+ * NUMA_PERIOD_THRESHOLD (where range of ratio is 1..NUMA_PERIOD_SLOTS) the
+ * scan period will decrease
+ */
+#define NUMA_PERIOD_SLOTS 10
+#define NUMA_PERIOD_THRESHOLD 3
+
+/*
+ * Increase the scan period (slow down scanning) if the majority of
+ * our memory is already on our local node, or if the majority of
+ * the page accesses are shared with other processes.
+ * Otherwise, decrease the scan period.
+ */
+static void update_task_scan_period(struct task_struct *p,
+			unsigned long shared, unsigned long private)
+{
+	unsigned int period_slot;
+	int ratio;
+	int diff;
+
+	unsigned long remote = p->numa_faults_locality[0];
+	unsigned long local = p->numa_faults_locality[1];
+
+	/*
+	 * If there were no record hinting faults then either the task is
+	 * completely idle or all activity is areas that are not of interest
+	 * to automatic numa balancing. Scan slower
+	 */
+	if (local + shared == 0) {
+		p->numa_scan_period = min(p->numa_scan_period_max,
+			p->numa_scan_period << 1);
+
+		p->mm->numa_next_scan = jiffies +
+			msecs_to_jiffies(p->numa_scan_period);
+
+		return;
+	}
+
+	/*
+	 * Prepare to scale scan period relative to the current period.
+	 *	 == NUMA_PERIOD_THRESHOLD scan period stays the same
+	 *       <  NUMA_PERIOD_THRESHOLD scan period decreases (scan faster)
+	 *	 >= NUMA_PERIOD_THRESHOLD scan period increases (scan slower)
+	 */
+	period_slot = DIV_ROUND_UP(p->numa_scan_period, NUMA_PERIOD_SLOTS);
+	ratio = (local * NUMA_PERIOD_SLOTS) / (local + remote);
+	if (ratio >= NUMA_PERIOD_THRESHOLD) {
+		int slot = ratio - NUMA_PERIOD_THRESHOLD;
+		if (!slot)
+			slot = 1;
+		diff = slot * period_slot;
+	} else {
+		diff = -(NUMA_PERIOD_THRESHOLD - ratio) * period_slot;
+
+		/*
+		 * Scale scan rate increases based on sharing. There is an
+		 * inverse relationship between the degree of sharing and
+		 * the adjustment made to the scanning period. Broadly
+		 * speaking the intent is that there is little point
+		 * scanning faster if shared accesses dominate as it may
+		 * simply bounce migrations uselessly
+		 */
+		period_slot = DIV_ROUND_UP(diff, NUMA_PERIOD_SLOTS);
+		ratio = DIV_ROUND_UP(private * NUMA_PERIOD_SLOTS, (private + shared));
+		diff = (diff * ratio) / NUMA_PERIOD_SLOTS;
+	}
+
+	p->numa_scan_period = clamp(p->numa_scan_period + diff,
+			task_scan_min(p), task_scan_max(p));
+	memset(p->numa_faults_locality, 0, sizeof(p->numa_faults_locality));
+}
+
 static void task_numa_placement(struct task_struct *p)
 {
 	int seq, nid, max_nid = -1, max_group_nid = -1;
 	unsigned long max_faults = 0, max_group_faults = 0;
+	unsigned long fault_types[2] = { 0, 0 };
 	spinlock_t *group_lock = NULL;
 
 	seq = ACCESS_ONCE(p->mm->numa_scan_seq);
@@ -1309,6 +1391,7 @@ static void task_numa_placement(struct task_struct *p)
 			/* Decay existing window, copy faults since last scan */
 			p->numa_faults[i] >>= 1;
 			p->numa_faults[i] += p->numa_faults_buffer[i];
+			fault_types[priv] += p->numa_faults_buffer[i];
 			p->numa_faults_buffer[i] = 0;
 
 			faults += p->numa_faults[i];
@@ -1333,6 +1416,8 @@ static void task_numa_placement(struct task_struct *p)
 		}
 	}
 
+	update_task_scan_period(p, fault_types[0], fault_types[1]);
+
 	if (p->numa_group) {
 		/*
 		 * If the preferred task and group nids are different,
@@ -1538,6 +1623,7 @@ void task_numa_fault(int last_cpupid, int node, int pages, int flags)
 		BUG_ON(p->numa_faults_buffer);
 		p->numa_faults_buffer = p->numa_faults + (2 * nr_node_ids);
 		p->total_numa_faults = 0;
+		memset(p->numa_faults_locality, 0, sizeof(p->numa_faults_locality));
 	}
 
 	/*
@@ -1552,19 +1638,6 @@ void task_numa_fault(int last_cpupid, int node, int pages, int flags)
 			task_numa_group(p, last_cpupid, flags, &priv);
 	}
 
-	/*
-	 * If pages are properly placed (did not migrate) then scan slower.
-	 * This is reset periodically in case of phase changes
-	 */
-	if (!migrated) {
-		/* Initialise if necessary */
-		if (!p->numa_scan_period_max)
-			p->numa_scan_period_max = task_scan_max(p);
-
-		p->numa_scan_period = min(p->numa_scan_period_max,
-			p->numa_scan_period + 10);
-	}
-
 	task_numa_placement(p);
 
 	/* Retry task to preferred node migration if it previously failed */
@@ -1575,6 +1648,7 @@ void task_numa_fault(int last_cpupid, int node, int pages, int flags)
 		p->numa_pages_migrated += pages;
 
 	p->numa_faults_buffer[task_faults_idx(node, priv)] += pages;
+	p->numa_faults_locality[!!(flags & TNF_FAULT_LOCAL)] += pages;
 }
 
 static void reset_ptenuma_scan(struct task_struct *p)
@@ -1701,18 +1775,6 @@ void task_numa_work(struct callback_head *work)
 	}
 
 out:
-	/*
-	 * If the whole process was scanned without updates then no NUMA
-	 * hinting faults are being recorded and scan rate should be lower.
-	 */
-	if (mm->numa_scan_offset == 0 && !nr_pte_updates) {
-		p->numa_scan_period = min(p->numa_scan_period_max,
-			p->numa_scan_period << 1);
-
-		next_scan = now + msecs_to_jiffies(p->numa_scan_period);
-		mm->numa_next_scan = next_scan;
-	}
-
 	/*
 	 * It is possible to reach the end of the VMA list but the last few
 	 * VMAs are not guaranteed to the vma_migratable. If they are not, we
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 7ab4e32afe12..1be2a1f95b61 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1296,8 +1296,10 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	page_nid = page_to_nid(page);
 	last_cpupid = page_cpupid_last(page);
 	count_vm_numa_event(NUMA_HINT_FAULTS);
-	if (page_nid == this_nid)
+	if (page_nid == this_nid) {
 		count_vm_numa_event(NUMA_HINT_FAULTS_LOCAL);
+		flags |= TNF_FAULT_LOCAL;
+	}
 
 	/*
 	 * Avoid grouping on DSO/COW pages in specific and RO pages
diff --git a/mm/memory.c b/mm/memory.c
index 823720c43ea9..1c7501f7fb1a 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -3527,13 +3527,16 @@ static int do_nonlinear_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 }
 
 int numa_migrate_prep(struct page *page, struct vm_area_struct *vma,
-				unsigned long addr, int page_nid)
+				unsigned long addr, int page_nid,
+				int *flags)
 {
 	get_page(page);
 
 	count_vm_numa_event(NUMA_HINT_FAULTS);
-	if (page_nid == numa_node_id())
+	if (page_nid == numa_node_id()) {
 		count_vm_numa_event(NUMA_HINT_FAULTS_LOCAL);
+		*flags |= TNF_FAULT_LOCAL;
+	}
 
 	return mpol_misplaced(page, vma, addr);
 }
@@ -3593,7 +3596,7 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 
 	last_cpupid = page_cpupid_last(page);
 	page_nid = page_to_nid(page);
-	target_nid = numa_migrate_prep(page, vma, addr, page_nid);
+	target_nid = numa_migrate_prep(page, vma, addr, page_nid, &flags);
 	pte_unmap_unlock(ptep, ptl);
 	if (target_nid == -1) {
 		put_page(page);
-- 
cgit 


From 930aa174fcc8b0efaad102fd80f677b92f35eaa2 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:37 +0100
Subject: sched/numa: Remove the numa_balancing_scan_period_reset sysctl

With scan rate adaptions based on whether the workload has properly
converged or not there should be no need for the scan period reset
hammer. Get rid of it.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-60-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 Documentation/sysctl/kernel.txt | 11 +++--------
 include/linux/mm_types.h        |  3 ---
 include/linux/sched/sysctl.h    |  1 -
 kernel/sched/core.c             |  1 -
 kernel/sched/fair.c             | 18 +-----------------
 kernel/sysctl.c                 |  7 -------
 6 files changed, 4 insertions(+), 37 deletions(-)

diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index d48bca45b6f2..84f17800f8b5 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -374,15 +374,13 @@ guarantee. If the target workload is already bound to NUMA nodes then this
 feature should be disabled. Otherwise, if the system overhead from the
 feature is too high then the rate the kernel samples for NUMA hinting
 faults may be controlled by the numa_balancing_scan_period_min_ms,
-numa_balancing_scan_delay_ms, numa_balancing_scan_period_reset,
-numa_balancing_scan_period_max_ms, numa_balancing_scan_size_mb and
-numa_balancing_settle_count sysctls.
+numa_balancing_scan_delay_ms, numa_balancing_scan_period_max_ms,
+numa_balancing_scan_size_mb and numa_balancing_settle_count sysctls.
 
 ==============================================================
 
 numa_balancing_scan_period_min_ms, numa_balancing_scan_delay_ms,
-numa_balancing_scan_period_max_ms, numa_balancing_scan_period_reset,
-numa_balancing_scan_size_mb
+numa_balancing_scan_period_max_ms, numa_balancing_scan_size_mb
 
 Automatic NUMA balancing scans tasks address space and unmaps pages to
 detect if pages are properly placed or if the data should be migrated to a
@@ -418,9 +416,6 @@ rate for each task.
 numa_balancing_scan_size_mb is how many megabytes worth of pages are
 scanned for a given scan.
 
-numa_balancing_scan_period_reset is a blunt instrument that controls how
-often a tasks scan delay is reset to detect sudden changes in task behaviour.
-
 numa_balancing_settle_count is how many scan periods must complete before
 the schedule balancer stops pushing the task towards a preferred node. This
 gives the scheduler a chance to place the task on an alternative node if the
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index a30f9ca66557..a3198e5aaf4e 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -420,9 +420,6 @@ struct mm_struct {
 	 */
 	unsigned long numa_next_scan;
 
-	/* numa_next_reset is when the PTE scanner period will be reset */
-	unsigned long numa_next_reset;
-
 	/* Restart point for scanning and setting pte_numa */
 	unsigned long numa_scan_offset;
 
diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h
index bf8086b2506e..10d16c4fbe89 100644
--- a/include/linux/sched/sysctl.h
+++ b/include/linux/sched/sysctl.h
@@ -47,7 +47,6 @@ extern enum sched_tunable_scaling sysctl_sched_tunable_scaling;
 extern unsigned int sysctl_numa_balancing_scan_delay;
 extern unsigned int sysctl_numa_balancing_scan_period_min;
 extern unsigned int sysctl_numa_balancing_scan_period_max;
-extern unsigned int sysctl_numa_balancing_scan_period_reset;
 extern unsigned int sysctl_numa_balancing_scan_size;
 extern unsigned int sysctl_numa_balancing_settle_count;
 
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 8cfd51f62241..89c5ae836f66 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1721,7 +1721,6 @@ static void __sched_fork(unsigned long clone_flags, struct task_struct *p)
 #ifdef CONFIG_NUMA_BALANCING
 	if (p->mm && atomic_read(&p->mm->mm_users) == 1) {
 		p->mm->numa_next_scan = jiffies + msecs_to_jiffies(sysctl_numa_balancing_scan_delay);
-		p->mm->numa_next_reset = jiffies + msecs_to_jiffies(sysctl_numa_balancing_scan_period_reset);
 		p->mm->numa_scan_seq = 0;
 	}
 
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 66237ff8b01e..da6fa22be000 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -826,7 +826,6 @@ update_stats_curr_start(struct cfs_rq *cfs_rq, struct sched_entity *se)
  */
 unsigned int sysctl_numa_balancing_scan_period_min = 1000;
 unsigned int sysctl_numa_balancing_scan_period_max = 60000;
-unsigned int sysctl_numa_balancing_scan_period_reset = 60000;
 
 /* Portion of address space to scan in MB */
 unsigned int sysctl_numa_balancing_scan_size = 256;
@@ -1685,24 +1684,9 @@ void task_numa_work(struct callback_head *work)
 	if (p->flags & PF_EXITING)
 		return;
 
-	if (!mm->numa_next_reset || !mm->numa_next_scan) {
+	if (!mm->numa_next_scan) {
 		mm->numa_next_scan = now +
 			msecs_to_jiffies(sysctl_numa_balancing_scan_delay);
-		mm->numa_next_reset = now +
-			msecs_to_jiffies(sysctl_numa_balancing_scan_period_reset);
-	}
-
-	/*
-	 * Reset the scan period if enough time has gone by. Objective is that
-	 * scanning will be reduced if pages are properly placed. As tasks
-	 * can enter different phases this needs to be re-examined. Lacking
-	 * proper tracking of reference behaviour, this blunt hammer is used.
-	 */
-	migrate = mm->numa_next_reset;
-	if (time_after(now, migrate)) {
-		p->numa_scan_period = task_scan_min(p);
-		next_scan = now + msecs_to_jiffies(sysctl_numa_balancing_scan_period_reset);
-		xchg(&mm->numa_next_reset, next_scan);
 	}
 
 	/*
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 42f616a74f40..e509b90a8002 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -370,13 +370,6 @@ static struct ctl_table kern_table[] = {
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec,
 	},
-	{
-		.procname	= "numa_balancing_scan_period_reset",
-		.data		= &sysctl_numa_balancing_scan_period_reset,
-		.maxlen		= sizeof(unsigned int),
-		.mode		= 0644,
-		.proc_handler	= proc_dointvec,
-	},
 	{
 		.procname	= "numa_balancing_scan_period_max_ms",
 		.data		= &sysctl_numa_balancing_scan_period_max,
-- 
cgit 


From 1e3646ffc64b232cb14a5ef01d7b98997c1b73f9 Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Mon, 7 Oct 2013 11:29:38 +0100
Subject: mm: numa: Revert temporarily disabling of NUMA migration

With the scan rate code working (at least for multi-instance specjbb),
the large hammer that is "sched: Do not migrate memory immediately after
switching node" can be replaced with something smarter. Revert temporarily
migration disabling and all traces of numa_migrate_seq.

Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-61-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/sched.h |  1 -
 kernel/sched/core.c   |  2 --
 kernel/sched/fair.c   | 25 +------------------------
 mm/mempolicy.c        | 12 ------------
 4 files changed, 1 insertion(+), 39 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 2292f6c1596f..d24f70ffddee 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1340,7 +1340,6 @@ struct task_struct {
 #endif
 #ifdef CONFIG_NUMA_BALANCING
 	int numa_scan_seq;
-	int numa_migrate_seq;
 	unsigned int numa_scan_period;
 	unsigned int numa_scan_period_max;
 	unsigned long numa_migrate_retry;
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 89c5ae836f66..0c3feebcf112 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1731,7 +1731,6 @@ static void __sched_fork(unsigned long clone_flags, struct task_struct *p)
 
 	p->node_stamp = 0ULL;
 	p->numa_scan_seq = p->mm ? p->mm->numa_scan_seq : 0;
-	p->numa_migrate_seq = 1;
 	p->numa_scan_period = sysctl_numa_balancing_scan_delay;
 	p->numa_work.next = &p->numa_work;
 	p->numa_faults = NULL;
@@ -4488,7 +4487,6 @@ void sched_setnuma(struct task_struct *p, int nid)
 		p->sched_class->put_prev_task(rq, p);
 
 	p->numa_preferred_nid = nid;
-	p->numa_migrate_seq = 1;
 
 	if (running)
 		p->sched_class->set_curr_task(rq);
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index da6fa22be000..8454c38b1b12 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1261,16 +1261,8 @@ static void numa_migrate_preferred(struct task_struct *p)
 {
 	/* Success if task is already running on preferred CPU */
 	p->numa_migrate_retry = 0;
-	if (cpu_to_node(task_cpu(p)) == p->numa_preferred_nid) {
-		/*
-		 * If migration is temporarily disabled due to a task migration
-		 * then re-enable it now as the task is running on its
-		 * preferred node and memory should migrate locally
-		 */
-		if (!p->numa_migrate_seq)
-			p->numa_migrate_seq++;
+	if (cpu_to_node(task_cpu(p)) == p->numa_preferred_nid)
 		return;
-	}
 
 	/* This task has no NUMA fault statistics yet */
 	if (unlikely(p->numa_preferred_nid == -1))
@@ -1367,7 +1359,6 @@ static void task_numa_placement(struct task_struct *p)
 	if (p->numa_scan_seq == seq)
 		return;
 	p->numa_scan_seq = seq;
-	p->numa_migrate_seq++;
 	p->numa_scan_period_max = task_scan_max(p);
 
 	/* If the task is part of a group prevent parallel updates to group stats */
@@ -4730,20 +4721,6 @@ static void move_task(struct task_struct *p, struct lb_env *env)
 	set_task_cpu(p, env->dst_cpu);
 	activate_task(env->dst_rq, p, 0);
 	check_preempt_curr(env->dst_rq, p, 0);
-#ifdef CONFIG_NUMA_BALANCING
-	if (p->numa_preferred_nid != -1) {
-		int src_nid = cpu_to_node(env->src_cpu);
-		int dst_nid = cpu_to_node(env->dst_cpu);
-
-		/*
-		 * If the load balancer has moved the task then limit
-		 * migrations from taking place in the short term in
-		 * case this is a short-lived migration.
-		 */
-		if (src_nid != dst_nid && dst_nid != p->numa_preferred_nid)
-			p->numa_migrate_seq = 0;
-	}
-#endif
 }
 
 /*
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index a5867ef24bda..2929c24c22b7 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2404,18 +2404,6 @@ int mpol_misplaced(struct page *page, struct vm_area_struct *vma, unsigned long
 		last_cpupid = page_cpupid_xchg_last(page, this_cpupid);
 		if (!cpupid_pid_unset(last_cpupid) && cpupid_to_nid(last_cpupid) != thisnid)
 			goto out;
-
-#ifdef CONFIG_NUMA_BALANCING
-		/*
-		 * If the scheduler has just moved us away from our
-		 * preferred node, do not bother migrating pages yet.
-		 * This way a short and temporary process migration will
-		 * not cause excessive memory migration.
-		 */
-		if (thisnid != current->numa_preferred_nid &&
-				!current->numa_migrate_seq)
-			goto out;
-#endif
 	}
 
 	if (curnid != polnid)
-- 
cgit 


From de1c9ce6f07fec0381a39a9d0b379ea35aa1167f Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Mon, 7 Oct 2013 11:29:39 +0100
Subject: sched/numa: Skip some page migrations after a shared fault

Shared faults can lead to lots of unnecessary page migrations,
slowing down the system, and causing private faults to hit the
per-pgdat migration ratelimit.

This patch adds sysctl numa_balancing_migrate_deferred, which specifies
how many shared page migrations to skip unconditionally, after each page
migration that is skipped because it is a shared fault.

This reduces the number of page migrations back and forth in
shared fault situations. It also gives a strong preference to
the tasks that are already running where most of the memory is,
and to moving the other tasks to near the memory.

Testing this with a much higher scan rate than the default
still seems to result in fewer page migrations than before.

Memory seems to be somewhat better consolidated than previously,
with multi-instance specjbb runs on a 4 node system.

Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-62-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 Documentation/sysctl/kernel.txt | 10 ++++++++-
 include/linux/sched.h           |  5 ++++-
 kernel/sched/fair.c             |  8 +++++++
 kernel/sysctl.c                 |  7 ++++++
 mm/mempolicy.c                  | 48 ++++++++++++++++++++++++++++++++++++++++-
 5 files changed, 75 insertions(+), 3 deletions(-)

diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index 84f17800f8b5..4273b2d71a27 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -375,7 +375,8 @@ feature should be disabled. Otherwise, if the system overhead from the
 feature is too high then the rate the kernel samples for NUMA hinting
 faults may be controlled by the numa_balancing_scan_period_min_ms,
 numa_balancing_scan_delay_ms, numa_balancing_scan_period_max_ms,
-numa_balancing_scan_size_mb and numa_balancing_settle_count sysctls.
+numa_balancing_scan_size_mb, numa_balancing_settle_count sysctls and
+numa_balancing_migrate_deferred.
 
 ==============================================================
 
@@ -421,6 +422,13 @@ the schedule balancer stops pushing the task towards a preferred node. This
 gives the scheduler a chance to place the task on an alternative node if the
 preferred node is overloaded.
 
+numa_balancing_migrate_deferred is how many page migrations get skipped
+unconditionally, after a page migration is skipped because a page is shared
+with other tasks. This reduces page migration overhead, and determines
+how much stronger the "move task near its memory" policy scheduler becomes,
+versus the "move memory near its task" memory management policy, for workloads
+with shared memory.
+
 ==============================================================
 
 osrelease, ostype & version:
diff --git a/include/linux/sched.h b/include/linux/sched.h
index d24f70ffddee..833eed55cf43 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1342,6 +1342,8 @@ struct task_struct {
 	int numa_scan_seq;
 	unsigned int numa_scan_period;
 	unsigned int numa_scan_period_max;
+	int numa_preferred_nid;
+	int numa_migrate_deferred;
 	unsigned long numa_migrate_retry;
 	u64 node_stamp;			/* migration stamp  */
 	struct callback_head numa_work;
@@ -1372,7 +1374,6 @@ struct task_struct {
 	 */
 	unsigned long numa_faults_locality[2];
 
-	int numa_preferred_nid;
 	unsigned long numa_pages_migrated;
 #endif /* CONFIG_NUMA_BALANCING */
 
@@ -1469,6 +1470,8 @@ extern void task_numa_fault(int last_node, int node, int pages, int flags);
 extern pid_t task_numa_group_id(struct task_struct *p);
 extern void set_numabalancing_state(bool enabled);
 extern void task_numa_free(struct task_struct *p);
+
+extern unsigned int sysctl_numa_balancing_migrate_deferred;
 #else
 static inline void task_numa_fault(int last_node, int node, int pages,
 				   int flags)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 8454c38b1b12..e7884dc3416d 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -833,6 +833,14 @@ unsigned int sysctl_numa_balancing_scan_size = 256;
 /* Scan @scan_size MB every @scan_period after an initial @scan_delay in ms */
 unsigned int sysctl_numa_balancing_scan_delay = 1000;
 
+/*
+ * After skipping a page migration on a shared page, skip N more numa page
+ * migrations unconditionally. This reduces the number of NUMA migrations
+ * in shared memory workloads, and has the effect of pulling tasks towards
+ * where their memory lives, over pulling the memory towards the task.
+ */
+unsigned int sysctl_numa_balancing_migrate_deferred = 16;
+
 static unsigned int task_nr_scan_windows(struct task_struct *p)
 {
 	unsigned long rss = 0;
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index e509b90a8002..a159e1fd2013 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -391,6 +391,13 @@ static struct ctl_table kern_table[] = {
 		.mode           = 0644,
 		.proc_handler   = proc_dointvec,
 	},
+	{
+		.procname       = "numa_balancing_migrate_deferred",
+		.data           = &sysctl_numa_balancing_migrate_deferred,
+		.maxlen         = sizeof(unsigned int),
+		.mode           = 0644,
+		.proc_handler   = proc_dointvec,
+	},
 #endif /* CONFIG_NUMA_BALANCING */
 #endif /* CONFIG_SCHED_DEBUG */
 	{
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 2929c24c22b7..71cb253368cb 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2301,6 +2301,35 @@ static void sp_free(struct sp_node *n)
 	kmem_cache_free(sn_cache, n);
 }
 
+#ifdef CONFIG_NUMA_BALANCING
+static bool numa_migrate_deferred(struct task_struct *p, int last_cpupid)
+{
+	/* Never defer a private fault */
+	if (cpupid_match_pid(p, last_cpupid))
+		return false;
+
+	if (p->numa_migrate_deferred) {
+		p->numa_migrate_deferred--;
+		return true;
+	}
+	return false;
+}
+
+static inline void defer_numa_migrate(struct task_struct *p)
+{
+	p->numa_migrate_deferred = sysctl_numa_balancing_migrate_deferred;
+}
+#else
+static inline bool numa_migrate_deferred(struct task_struct *p, int last_cpupid)
+{
+	return false;
+}
+
+static inline void defer_numa_migrate(struct task_struct *p)
+{
+}
+#endif /* CONFIG_NUMA_BALANCING */
+
 /**
  * mpol_misplaced - check whether current page node is valid in policy
  *
@@ -2402,7 +2431,24 @@ int mpol_misplaced(struct page *page, struct vm_area_struct *vma, unsigned long
 		 * relation.
 		 */
 		last_cpupid = page_cpupid_xchg_last(page, this_cpupid);
-		if (!cpupid_pid_unset(last_cpupid) && cpupid_to_nid(last_cpupid) != thisnid)
+		if (!cpupid_pid_unset(last_cpupid) && cpupid_to_nid(last_cpupid) != thisnid) {
+
+			/* See sysctl_numa_balancing_migrate_deferred comment */
+			if (!cpupid_match_pid(current, last_cpupid))
+				defer_numa_migrate(current);
+
+			goto out;
+		}
+
+		/*
+		 * The quadratic filter above reduces extraneous migration
+		 * of shared pages somewhat. This code reduces it even more,
+		 * reducing the overhead of page migrations of shared pages.
+		 * This makes workloads with shared pages rely more on
+		 * "move task near its memory", and less on "move memory
+		 * towards its task", which is exactly what we want.
+		 */
+		if (numa_migrate_deferred(current, last_cpupid))
 			goto out;
 	}
 
-- 
cgit 


From 989348b5fc2367d6880d23a1c779a90bbb6f9baf Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Mon, 7 Oct 2013 11:29:40 +0100
Subject: sched/numa: Use unsigned longs for numa group fault stats

As Peter says "If you're going to hold locks you can also do away with all
that atomic_long_*() nonsense". Lock aquisition moved slightly to protect
the updates.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-63-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 49 ++++++++++++++++++++-----------------------------
 1 file changed, 20 insertions(+), 29 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index e7884dc3416d..5b2208e504a4 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -916,8 +916,8 @@ struct numa_group {
 	struct list_head task_list;
 
 	struct rcu_head rcu;
-	atomic_long_t total_faults;
-	atomic_long_t faults[0];
+	unsigned long total_faults;
+	unsigned long faults[0];
 };
 
 pid_t task_numa_group_id(struct task_struct *p)
@@ -944,8 +944,7 @@ static inline unsigned long group_faults(struct task_struct *p, int nid)
 	if (!p->numa_group)
 		return 0;
 
-	return atomic_long_read(&p->numa_group->faults[2*nid]) +
-	       atomic_long_read(&p->numa_group->faults[2*nid+1]);
+	return p->numa_group->faults[2*nid] + p->numa_group->faults[2*nid+1];
 }
 
 /*
@@ -971,17 +970,10 @@ static inline unsigned long task_weight(struct task_struct *p, int nid)
 
 static inline unsigned long group_weight(struct task_struct *p, int nid)
 {
-	unsigned long total_faults;
-
-	if (!p->numa_group)
-		return 0;
-
-	total_faults = atomic_long_read(&p->numa_group->total_faults);
-
-	if (!total_faults)
+	if (!p->numa_group || !p->numa_group->total_faults)
 		return 0;
 
-	return 1000 * group_faults(p, nid) / total_faults;
+	return 1000 * group_faults(p, nid) / p->numa_group->total_faults;
 }
 
 static unsigned long weighted_cpuload(const int cpu);
@@ -1397,9 +1389,9 @@ static void task_numa_placement(struct task_struct *p)
 			p->total_numa_faults += diff;
 			if (p->numa_group) {
 				/* safe because we can only change our own group */
-				atomic_long_add(diff, &p->numa_group->faults[i]);
-				atomic_long_add(diff, &p->numa_group->total_faults);
-				group_faults += atomic_long_read(&p->numa_group->faults[i]);
+				p->numa_group->faults[i] += diff;
+				p->numa_group->total_faults += diff;
+				group_faults += p->numa_group->faults[i];
 			}
 		}
 
@@ -1475,7 +1467,7 @@ static void task_numa_group(struct task_struct *p, int cpupid, int flags,
 
 	if (unlikely(!p->numa_group)) {
 		unsigned int size = sizeof(struct numa_group) +
-				    2*nr_node_ids*sizeof(atomic_long_t);
+				    2*nr_node_ids*sizeof(unsigned long);
 
 		grp = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
 		if (!grp)
@@ -1487,9 +1479,9 @@ static void task_numa_group(struct task_struct *p, int cpupid, int flags,
 		grp->gid = p->pid;
 
 		for (i = 0; i < 2*nr_node_ids; i++)
-			atomic_long_set(&grp->faults[i], p->numa_faults[i]);
+			grp->faults[i] = p->numa_faults[i];
 
-		atomic_long_set(&grp->total_faults, p->total_numa_faults);
+		grp->total_faults = p->total_numa_faults;
 
 		list_add(&p->numa_entry, &grp->task_list);
 		grp->nr_tasks++;
@@ -1543,14 +1535,14 @@ unlock:
 	if (!join)
 		return;
 
+	double_lock(&my_grp->lock, &grp->lock);
+
 	for (i = 0; i < 2*nr_node_ids; i++) {
-		atomic_long_sub(p->numa_faults[i], &my_grp->faults[i]);
-		atomic_long_add(p->numa_faults[i], &grp->faults[i]);
+		my_grp->faults[i] -= p->numa_faults[i];
+		grp->faults[i] += p->numa_faults[i];
 	}
-	atomic_long_sub(p->total_numa_faults, &my_grp->total_faults);
-	atomic_long_add(p->total_numa_faults, &grp->total_faults);
-
-	double_lock(&my_grp->lock, &grp->lock);
+	my_grp->total_faults -= p->total_numa_faults;
+	grp->total_faults += p->total_numa_faults;
 
 	list_move(&p->numa_entry, &grp->task_list);
 	my_grp->nr_tasks--;
@@ -1571,12 +1563,11 @@ void task_numa_free(struct task_struct *p)
 	void *numa_faults = p->numa_faults;
 
 	if (grp) {
+		spin_lock(&grp->lock);
 		for (i = 0; i < 2*nr_node_ids; i++)
-			atomic_long_sub(p->numa_faults[i], &grp->faults[i]);
-
-		atomic_long_sub(p->total_numa_faults, &grp->total_faults);
+			grp->faults[i] -= p->numa_faults[i];
+		grp->total_faults -= p->total_numa_faults;
 
-		spin_lock(&grp->lock);
 		list_del(&p->numa_entry);
 		grp->nr_tasks--;
 		spin_unlock(&grp->lock);
-- 
cgit 


From 2739d3eef3a93a92c366a3a0bb85a0afe09e8b8c Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Mon, 7 Oct 2013 11:29:41 +0100
Subject: sched/numa: Retry task_numa_migrate() periodically

Short spikes of CPU load can lead to a task being migrated
away from its preferred node for temporary reasons.

It is important that the task is migrated back to where it
belongs, in order to avoid migrating too much memory to its
new location, and generally disturbing a task's NUMA location.

This patch fixes NUMA placement for 4 specjbb instances on
a 4 node system. Without this patch, things take longer to
converge, and processes are not always completely on their
own node.

Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381141781-10992-64-git-send-email-mgorman@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 5b2208e504a4..e9149305c5fa 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1259,18 +1259,19 @@ static int task_numa_migrate(struct task_struct *p)
 /* Attempt to migrate a task to a CPU on the preferred node. */
 static void numa_migrate_preferred(struct task_struct *p)
 {
-	/* Success if task is already running on preferred CPU */
-	p->numa_migrate_retry = 0;
-	if (cpu_to_node(task_cpu(p)) == p->numa_preferred_nid)
+	/* This task has no NUMA fault statistics yet */
+	if (unlikely(p->numa_preferred_nid == -1 || !p->numa_faults))
 		return;
 
-	/* This task has no NUMA fault statistics yet */
-	if (unlikely(p->numa_preferred_nid == -1))
+	/* Periodically retry migrating the task to the preferred node */
+	p->numa_migrate_retry = jiffies + HZ;
+
+	/* Success if task is already running on preferred CPU */
+	if (cpu_to_node(task_cpu(p)) == p->numa_preferred_nid)
 		return;
 
 	/* Otherwise, try migrate to a CPU on the preferred node */
-	if (task_numa_migrate(p) != 0)
-		p->numa_migrate_retry = jiffies + HZ*5;
+	task_numa_migrate(p);
 }
 
 /*
@@ -1629,8 +1630,11 @@ void task_numa_fault(int last_cpupid, int node, int pages, int flags)
 
 	task_numa_placement(p);
 
-	/* Retry task to preferred node migration if it previously failed */
-	if (p->numa_migrate_retry && time_after(jiffies, p->numa_migrate_retry))
+	/*
+	 * Retry task to preferred node migration periodically, in case it
+	 * case it previously failed, or the scheduler moved us.
+	 */
+	if (time_after(jiffies, p->numa_migrate_retry))
 		numa_migrate_preferred(p);
 
 	if (migrated)
-- 
cgit 


From 3354781a2184380046c8dd19144628d3c33991e6 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 9 Oct 2013 10:24:48 +0200
Subject: sched/numa: Reflow task_numa_group() to avoid a compiler warning
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Reflow the function a bit because GCC gets confused:

  kernel/sched/fair.c: In function ‘task_numa_fault’:
  kernel/sched/fair.c:1448:3: warning: ‘my_grp’ may be used uninitialized in this function [-Wmaybe-uninitialized]
  kernel/sched/fair.c:1463:27: note: ‘my_grp’ was declared here

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-6ebt6x7u64pbbonq1khqu2z9@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index e9149305c5fa..803e343d7c89 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1493,28 +1493,28 @@ static void task_numa_group(struct task_struct *p, int cpupid, int flags,
 	tsk = ACCESS_ONCE(cpu_rq(cpu)->curr);
 
 	if (!cpupid_match_pid(tsk, cpupid))
-		goto unlock;
+		goto no_join;
 
 	grp = rcu_dereference(tsk->numa_group);
 	if (!grp)
-		goto unlock;
+		goto no_join;
 
 	my_grp = p->numa_group;
 	if (grp == my_grp)
-		goto unlock;
+		goto no_join;
 
 	/*
 	 * Only join the other group if its bigger; if we're the bigger group,
 	 * the other task will join us.
 	 */
 	if (my_grp->nr_tasks > grp->nr_tasks)
-		goto unlock;
+		goto no_join;
 
 	/*
 	 * Tie-break on the grp address.
 	 */
 	if (my_grp->nr_tasks == grp->nr_tasks && my_grp > grp)
-		goto unlock;
+		goto no_join;
 
 	/* Always join threads in the same process. */
 	if (tsk->mm == current->mm)
@@ -1528,9 +1528,8 @@ static void task_numa_group(struct task_struct *p, int cpupid, int flags,
 	*priv = !join;
 
 	if (join && !get_numa_group(grp))
-		join = false;
+		goto no_join;
 
-unlock:
 	rcu_read_unlock();
 
 	if (!join)
@@ -1555,6 +1554,11 @@ unlock:
 	rcu_assign_pointer(p->numa_group, grp);
 
 	put_numa_group(my_grp);
+	return;
+
+no_join:
+	rcu_read_unlock();
+	return;
 }
 
 void task_numa_free(struct task_struct *p)
-- 
cgit 


From 651e013e3ce6c0646c39a07e22bebad75a207209 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Tue, 8 Oct 2013 18:37:36 +0100
Subject: regmap: Don't generate gather writes for single register raw writes

Since it is quite common for single register raw or async writes to be
generated by rbtree cache syncs or firmware downloads and essentially all
hardware will be faster with only a single transfer optimise this case by
copying single values into the internal scratch buffer before sending.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/base/regmap/regmap.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 742f300ca48a..d27758c337af 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1116,6 +1116,16 @@ int _regmap_raw_write(struct regmap *map, unsigned int reg,
 
 	u8[0] |= map->write_flag_mask;
 
+	/*
+	 * Essentially all I/O mechanisms will be faster with a single
+	 * buffer to write.  Since register syncs often generate raw
+	 * writes of single registers optimise that case.
+	 */
+	if (val != work_val && val_len == map->format.val_bytes) {
+		memcpy(work_val, val, map->format.val_bytes);
+		val = work_val;
+	}
+
 	if (async && map->bus->async_write) {
 		struct regmap_async *async;
 
-- 
cgit 


From 0a8198094da895c8d5db95812fe9de7027d808e4 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 9 Oct 2013 12:28:52 +0100
Subject: regmap: Simplify the initiation of async I/O

Rather than passing a flag around through the entire call stack store it
in the regmap struct and read it when required. This minimises the
visibility of the feature through the API, minimising the code updates
needed to use it more widely.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/base/regmap/internal.h |  3 ++-
 drivers/base/regmap/regcache.c |  3 +--
 drivers/base/regmap/regmap.c   | 19 +++++++++++--------
 3 files changed, 14 insertions(+), 11 deletions(-)

diff --git a/drivers/base/regmap/internal.h b/drivers/base/regmap/internal.h
index 793ebe207c8a..6873b4ce03f9 100644
--- a/drivers/base/regmap/internal.h
+++ b/drivers/base/regmap/internal.h
@@ -63,6 +63,7 @@ struct regmap {
 	void *bus_context;
 	const char *name;
 
+	bool async;
 	spinlock_t async_lock;
 	wait_queue_head_t async_waitq;
 	struct list_head async_list;
@@ -218,7 +219,7 @@ bool regcache_set_val(struct regmap *map, void *base, unsigned int idx,
 int regcache_lookup_reg(struct regmap *map, unsigned int reg);
 
 int _regmap_raw_write(struct regmap *map, unsigned int reg,
-		      const void *val, size_t val_len, bool async);
+		      const void *val, size_t val_len);
 
 void regmap_async_complete_cb(struct regmap_async *async, int ret);
 
diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index d6c2d691b6e8..a36112af494c 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -631,8 +631,7 @@ static int regcache_sync_block_raw_flush(struct regmap *map, const void **data,
 
 	map->cache_bypass = 1;
 
-	ret = _regmap_raw_write(map, base, *data, count * val_bytes,
-				false);
+	ret = _regmap_raw_write(map, base, *data, count * val_bytes);
 
 	map->cache_bypass = 0;
 
diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index d27758c337af..268fb71891ee 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1041,7 +1041,7 @@ static int _regmap_select_page(struct regmap *map, unsigned int *reg,
 }
 
 int _regmap_raw_write(struct regmap *map, unsigned int reg,
-		      const void *val, size_t val_len, bool async)
+		      const void *val, size_t val_len)
 {
 	struct regmap_range_node *range;
 	unsigned long flags;
@@ -1093,7 +1093,7 @@ int _regmap_raw_write(struct regmap *map, unsigned int reg,
 			dev_dbg(map->dev, "Writing window %d/%zu\n",
 				win_residue, val_len / map->format.val_bytes);
 			ret = _regmap_raw_write(map, reg, val, win_residue *
-						map->format.val_bytes, async);
+						map->format.val_bytes);
 			if (ret != 0)
 				return ret;
 
@@ -1126,7 +1126,7 @@ int _regmap_raw_write(struct regmap *map, unsigned int reg,
 		val = work_val;
 	}
 
-	if (async && map->bus->async_write) {
+	if (map->async && map->bus->async_write) {
 		struct regmap_async *async;
 
 		trace_regmap_async_write_start(map->dev, reg, val_len);
@@ -1273,7 +1273,7 @@ static int _regmap_bus_raw_write(void *context, unsigned int reg,
 				 map->work_buf +
 				 map->format.reg_bytes +
 				 map->format.pad_bytes,
-				 map->format.val_bytes, false);
+				 map->format.val_bytes);
 }
 
 static inline void *_regmap_map_get_context(struct regmap *map)
@@ -1365,7 +1365,7 @@ int regmap_raw_write(struct regmap *map, unsigned int reg,
 
 	map->lock(map->lock_arg);
 
-	ret = _regmap_raw_write(map, reg, val, val_len, false);
+	ret = _regmap_raw_write(map, reg, val, val_len);
 
 	map->unlock(map->lock_arg);
 
@@ -1446,8 +1446,7 @@ int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val,
 				return ret;
 		}
 	} else {
-		ret = _regmap_raw_write(map, reg, wval, val_bytes * val_count,
-					false);
+		ret = _regmap_raw_write(map, reg, wval, val_bytes * val_count);
 	}
 
 	if (val_bytes != 1)
@@ -1493,7 +1492,11 @@ int regmap_raw_write_async(struct regmap *map, unsigned int reg,
 
 	map->lock(map->lock_arg);
 
-	ret = _regmap_raw_write(map, reg, val, val_len, true);
+	map->async = true;
+
+	ret = _regmap_raw_write(map, reg, val, val_len);
+
+	map->async = false;
 
 	map->unlock(map->lock_arg);
 
-- 
cgit 


From 915f441b6f31b1a8ee01e9263a4e2d44c434d832 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 9 Oct 2013 13:30:10 +0100
Subject: regmap: Provide asynchronous write and update bits operations

Make it easier for drivers to include single register writes in
asynchronous sequences by providing async versions of the write
and update bits operations. The update bits operations are only
likely to be effective when used with devices that have caches
but this is common enough to be useful.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/base/regmap/regmap.c | 103 +++++++++++++++++++++++++++++++++++++++++++
 include/linux/regmap.h       |  31 +++++++++++++
 2 files changed, 134 insertions(+)

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 268fb71891ee..0503d868ff8c 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1337,6 +1337,37 @@ int regmap_write(struct regmap *map, unsigned int reg, unsigned int val)
 }
 EXPORT_SYMBOL_GPL(regmap_write);
 
+/**
+ * regmap_write_async(): Write a value to a single register asynchronously
+ *
+ * @map: Register map to write to
+ * @reg: Register to write to
+ * @val: Value to be written
+ *
+ * A value of zero will be returned on success, a negative errno will
+ * be returned in error cases.
+ */
+int regmap_write_async(struct regmap *map, unsigned int reg, unsigned int val)
+{
+	int ret;
+
+	if (reg % map->reg_stride)
+		return -EINVAL;
+
+	map->lock(map->lock_arg);
+
+	map->async = true;
+
+	ret = _regmap_write(map, reg, val);
+
+	map->async = false;
+
+	map->unlock(map->lock_arg);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(regmap_write_async);
+
 /**
  * regmap_raw_write(): Write raw values to one or more registers
  *
@@ -1810,6 +1841,41 @@ int regmap_update_bits(struct regmap *map, unsigned int reg,
 }
 EXPORT_SYMBOL_GPL(regmap_update_bits);
 
+/**
+ * regmap_update_bits_async: Perform a read/modify/write cycle on the register
+ *                           map asynchronously
+ *
+ * @map: Register map to update
+ * @reg: Register to update
+ * @mask: Bitmask to change
+ * @val: New value for bitmask
+ *
+ * With most buses the read must be done synchronously so this is most
+ * useful for devices with a cache which do not need to interact with
+ * the hardware to determine the current register value.
+ *
+ * Returns zero for success, a negative number on error.
+ */
+int regmap_update_bits_async(struct regmap *map, unsigned int reg,
+			     unsigned int mask, unsigned int val)
+{
+	bool change;
+	int ret;
+
+	map->lock(map->lock_arg);
+
+	map->async = true;
+
+	ret = _regmap_update_bits(map, reg, mask, val, &change);
+
+	map->async = false;
+
+	map->unlock(map->lock_arg);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(regmap_update_bits_async);
+
 /**
  * regmap_update_bits_check: Perform a read/modify/write cycle on the
  *                           register map and report if updated
@@ -1835,6 +1901,43 @@ int regmap_update_bits_check(struct regmap *map, unsigned int reg,
 }
 EXPORT_SYMBOL_GPL(regmap_update_bits_check);
 
+/**
+ * regmap_update_bits_check_async: Perform a read/modify/write cycle on the
+ *                                 register map asynchronously and report if
+ *                                 updated
+ *
+ * @map: Register map to update
+ * @reg: Register to update
+ * @mask: Bitmask to change
+ * @val: New value for bitmask
+ * @change: Boolean indicating if a write was done
+ *
+ * With most buses the read must be done synchronously so this is most
+ * useful for devices with a cache which do not need to interact with
+ * the hardware to determine the current register value.
+ *
+ * Returns zero for success, a negative number on error.
+ */
+int regmap_update_bits_check_async(struct regmap *map, unsigned int reg,
+				   unsigned int mask, unsigned int val,
+				   bool *change)
+{
+	int ret;
+
+	map->lock(map->lock_arg);
+
+	map->async = true;
+
+	ret = _regmap_update_bits(map, reg, mask, val, change);
+
+	map->async = false;
+
+	map->unlock(map->lock_arg);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(regmap_update_bits_check_async);
+
 void regmap_async_complete_cb(struct regmap_async *async, int ret)
 {
 	struct regmap *map = async->map;
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index a10380bfbeac..114565befbd2 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -374,6 +374,7 @@ int regmap_reinit_cache(struct regmap *map,
 			const struct regmap_config *config);
 struct regmap *dev_get_regmap(struct device *dev, const char *name);
 int regmap_write(struct regmap *map, unsigned int reg, unsigned int val);
+int regmap_write_async(struct regmap *map, unsigned int reg, unsigned int val);
 int regmap_raw_write(struct regmap *map, unsigned int reg,
 		     const void *val, size_t val_len);
 int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val,
@@ -387,9 +388,14 @@ int regmap_bulk_read(struct regmap *map, unsigned int reg, void *val,
 		     size_t val_count);
 int regmap_update_bits(struct regmap *map, unsigned int reg,
 		       unsigned int mask, unsigned int val);
+int regmap_update_bits_async(struct regmap *map, unsigned int reg,
+			     unsigned int mask, unsigned int val);
 int regmap_update_bits_check(struct regmap *map, unsigned int reg,
 			     unsigned int mask, unsigned int val,
 			     bool *change);
+int regmap_update_bits_check_async(struct regmap *map, unsigned int reg,
+				   unsigned int mask, unsigned int val,
+				   bool *change);
 int regmap_get_val_bytes(struct regmap *map);
 int regmap_async_complete(struct regmap *map);
 bool regmap_can_raw_write(struct regmap *map);
@@ -527,6 +533,13 @@ static inline int regmap_write(struct regmap *map, unsigned int reg,
 	return -EINVAL;
 }
 
+static inline int regmap_write_async(struct regmap *map, unsigned int reg,
+				     unsigned int val)
+{
+	WARN_ONCE(1, "regmap API is disabled");
+	return -EINVAL;
+}
+
 static inline int regmap_raw_write(struct regmap *map, unsigned int reg,
 				   const void *val, size_t val_len)
 {
@@ -576,6 +589,14 @@ static inline int regmap_update_bits(struct regmap *map, unsigned int reg,
 	return -EINVAL;
 }
 
+static inline int regmap_update_bits_async(struct regmap *map,
+					   unsigned int reg,
+					   unsigned int mask, unsigned int val)
+{
+	WARN_ONCE(1, "regmap API is disabled");
+	return -EINVAL;
+}
+
 static inline int regmap_update_bits_check(struct regmap *map,
 					   unsigned int reg,
 					   unsigned int mask, unsigned int val,
@@ -585,6 +606,16 @@ static inline int regmap_update_bits_check(struct regmap *map,
 	return -EINVAL;
 }
 
+static inline int regmap_update_bits_check_async(struct regmap *map,
+						 unsigned int reg,
+						 unsigned int mask,
+						 unsigned int val,
+						 bool *change)
+{
+	WARN_ONCE(1, "regmap API is disabled");
+	return -EINVAL;
+}
+
 static inline int regmap_get_val_bytes(struct regmap *map)
 {
 	WARN_ONCE(1, "regmap API is disabled");
-- 
cgit 


From 8a7f431221602fcde573dfdba26de1990ec195a0 Mon Sep 17 00:00:00 2001
From: Julia Lawall <Julia.Lawall@lip6.fr>
Date: Mon, 19 Aug 2013 12:20:37 +0100
Subject: iommu/arm-smmu: replace devm_request_and_ioremap by
 devm_ioremap_resource

Use devm_ioremap_resource instead of devm_request_and_ioremap.

This was partly done using the semantic patch
scripts/coccinelle/api/devm_ioremap_resource.cocci

The error-handling code on the call to platform_get_resource was removed
manually, and the initialization of smmu->size was manually moved lower, to
take advantage of the NULL test on res performed by devm_ioremap_resource.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 drivers/iommu/arm-smmu.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 181c9ba929cd..abe83c3757ab 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1781,15 +1781,10 @@ static int arm_smmu_device_dt_probe(struct platform_device *pdev)
 	smmu->dev = dev;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(dev, "missing base address/size\n");
-		return -ENODEV;
-	}
-
+	smmu->base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(smmu->base))
+		return PTR_ERR(smmu->base);
 	smmu->size = resource_size(res);
-	smmu->base = devm_request_and_ioremap(dev, res);
-	if (!smmu->base)
-		return -EADDRNOTAVAIL;
 
 	if (of_property_read_u32(dev->of_node, "#global-interrupts",
 				 &smmu->num_global_irqs)) {
-- 
cgit 


From 25724841dfaed05f23a3ddaaaed5c9b61ceea7bd Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Wed, 21 Aug 2013 13:49:53 +0100
Subject: iommu/arm-smmu: use relaxed accessors where possible

Apart from fault handling and page table manipulation, we don't care
about memory ordering between SMMU control registers and normal,
cacheable memory, so use the _relaxed I/O accessors wherever possible.

Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 drivers/iommu/arm-smmu.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index abe83c3757ab..293192150f5a 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -778,7 +778,7 @@ static void arm_smmu_init_context_bank(struct arm_smmu_domain *smmu_domain)
 #ifdef __BIG_ENDIAN
 	reg |= SCTLR_E;
 #endif
-	writel(reg, cb_base + ARM_SMMU_CB_SCTLR);
+	writel_relaxed(reg, cb_base + ARM_SMMU_CB_SCTLR);
 }
 
 static int arm_smmu_init_domain_context(struct iommu_domain *domain,
@@ -1595,7 +1595,7 @@ static void arm_smmu_device_reset(struct arm_smmu_device *smmu)
 
 	/* Push the button */
 	arm_smmu_tlb_sync(smmu);
-	writel(scr0, gr0_base + ARM_SMMU_GR0_sCR0);
+	writel_relaxed(scr0, gr0_base + ARM_SMMU_GR0_sCR0);
 }
 
 static int arm_smmu_id_size_to_bits(int size)
@@ -1928,7 +1928,7 @@ static int arm_smmu_device_remove(struct platform_device *pdev)
 		free_irq(smmu->irqs[i], smmu);
 
 	/* Turn the thing off */
-	writel(sCR0_CLIENTPD, ARM_SMMU_GR0(smmu) + ARM_SMMU_GR0_sCR0);
+	writel_relaxed(sCR0_CLIENTPD, ARM_SMMU_GR0(smmu) + ARM_SMMU_GR0_sCR0);
 	return 0;
 }
 
-- 
cgit 


From b1950b2796da80b66df02db39cc3417266b73767 Mon Sep 17 00:00:00 2001
From: Andreas Herrmann <andreas.herrmann@calxeda.com>
Date: Tue, 1 Oct 2013 13:39:05 +0100
Subject: iommu/arm-smmu: Switch to subsys_initcall for driver registration

This should ensure that arm-smmu is initialized before other drivers
start handling devices that propably need smmu support.

Signed-off-by: Andreas Herrmann <andreas.herrmann@calxeda.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 drivers/iommu/arm-smmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 293192150f5a..878a5b926fe5 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1976,7 +1976,7 @@ static void __exit arm_smmu_exit(void)
 	return platform_driver_unregister(&arm_smmu_driver);
 }
 
-module_init(arm_smmu_init);
+subsys_initcall(arm_smmu_init);
 module_exit(arm_smmu_exit);
 
 MODULE_DESCRIPTION("IOMMU API for ARM architected SMMU implementations");
-- 
cgit 


From c55af7f719cbb0f0b28f42b3f98f662278f063c2 Mon Sep 17 00:00:00 2001
From: Andreas Herrmann <andreas.herrmann@calxeda.com>
Date: Tue, 1 Oct 2013 13:39:06 +0100
Subject: iommu/arm-smmu: Refine check for proper size of mapped region

There is already a check to print a warning if the size of SMMU
address space (calculated from SMMU register values) is greater than
the size of the mapped memory region (e.g. passed via DT to the
driver).

Adapt this check to print also a warning in case the mapped region is
larger than the SMMU address space.

Such a mismatch could be intentional (to fix wrong register values).
If its not intentional (e.g. due to wrong DT information) this will
very likely cause a malfunction of the driver as SMMU_CB_BASE is
derived from the size of the mapped region. The warning helps to
identify the root cause in this case.

Signed-off-by: Andreas Herrmann <andreas.herrmann@calxeda.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 drivers/iommu/arm-smmu.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 878a5b926fe5..1f79daa5f4b1 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1700,13 +1700,12 @@ static int arm_smmu_device_cfg_probe(struct arm_smmu_device *smmu)
 	id = readl_relaxed(gr0_base + ARM_SMMU_GR0_ID1);
 	smmu->pagesize = (id & ID1_PAGESIZE) ? SZ_64K : SZ_4K;
 
-	/* Check that we ioremapped enough */
+	/* Check for size mismatch of SMMU address space from mapped region */
 	size = 1 << (((id >> ID1_NUMPAGENDXB_SHIFT) & ID1_NUMPAGENDXB_MASK) + 1);
 	size *= (smmu->pagesize << 1);
-	if (smmu->size < size)
-		dev_warn(smmu->dev,
-			 "device is 0x%lx bytes but only mapped 0x%lx!\n",
-			 size, smmu->size);
+	if (smmu->size != size)
+		dev_warn(smmu->dev, "SMMU address space size (0x%lx) differs "
+			"from mapped region size (0x%lx)!\n", size, smmu->size);
 
 	smmu->num_s2_context_banks = (id >> ID1_NUMS2CB_SHIFT) &
 				      ID1_NUMS2CB_MASK;
-- 
cgit 


From 44a08de2aaf7f4cf86dfcf04bee32536e4a2b5b8 Mon Sep 17 00:00:00 2001
From: Andreas Herrmann <andreas.herrmann@calxeda.com>
Date: Tue, 1 Oct 2013 13:39:07 +0100
Subject: iommu/arm-smmu: Check for num_context_irqs > 0 to avoid divide by
 zero exception

With the right (or wrong;-) definition of v1 SMMU node in DTB it is
possible to trigger a division by zero in arm_smmu_init_domain_context
(if number of context irqs is 0):

       if (smmu->version == 1) {
               root_cfg->irptndx = atomic_inc_return(&smmu->irptndx);
 =>            root_cfg->irptndx %= smmu->num_context_irqs;
       } else {

Avoid this by checking for num_context_irqs > 0 when probing
for SMMU devices.

Signed-off-by: Andreas Herrmann <andreas.herrmann@calxeda.com>
[will: changed to dev_err on probe failure path]
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 drivers/iommu/arm-smmu.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 1f79daa5f4b1..e4693cee5f2c 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1798,12 +1798,11 @@ static int arm_smmu_device_dt_probe(struct platform_device *pdev)
 			smmu->num_context_irqs++;
 	}
 
-	if (num_irqs < smmu->num_global_irqs) {
-		dev_warn(dev, "found %d interrupts but expected at least %d\n",
-			 num_irqs, smmu->num_global_irqs);
-		smmu->num_global_irqs = num_irqs;
+	if (!smmu->num_context_irqs) {
+		dev_err(dev, "found %d interrupts but expected at least %d\n",
+			num_irqs, smmu->num_global_irqs + 1);
+		return -ENODEV;
 	}
-	smmu->num_context_irqs = num_irqs - smmu->num_global_irqs;
 
 	smmu->irqs = devm_kzalloc(dev, sizeof(*smmu->irqs) * num_irqs,
 				  GFP_KERNEL);
-- 
cgit 


From 2ef0f03120ea2ad64d0e70f032a58e6c13603cdc Mon Sep 17 00:00:00 2001
From: Andreas Herrmann <andreas.herrmann@calxeda.com>
Date: Tue, 1 Oct 2013 13:39:08 +0100
Subject: iommu/arm-smmu: Print context fault information

Print context fault information when the fault was not handled by
report_iommu_fault.

Signed-off-by: Andreas Herrmann <andreas.herrmann@calxeda.com>
[will: fixed string formatting]
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 drivers/iommu/arm-smmu.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index e4693cee5f2c..a984e08eb084 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -590,6 +590,9 @@ static irqreturn_t arm_smmu_context_fault(int irq, void *dev)
 		ret = IRQ_HANDLED;
 		resume = RESUME_RETRY;
 	} else {
+		dev_err_ratelimited(smmu->dev,
+		    "Unhandled context fault: iova=0x%08lx, fsynr=0x%x, cb=%d\n",
+		    iova, fsynr, root_cfg->cbndx);
 		ret = IRQ_NONE;
 		resume = RESUME_TERMINATE;
 	}
-- 
cgit 


From 659db6f6beacae6fe49b5566debc4e82f678ff63 Mon Sep 17 00:00:00 2001
From: Andreas Herrmann <andreas.herrmann@calxeda.com>
Date: Tue, 1 Oct 2013 13:39:09 +0100
Subject: iommu/arm-smmu: Clear global and context bank fault status registers

After reset these registers have unknown values.
This might cause problems when evaluating SMMU_GFSR and/or SMMU_CB_FSR
in handlers for combined interrupts.

Signed-off-by: Andreas Herrmann <andreas.herrmann@calxeda.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 drivers/iommu/arm-smmu.c | 31 ++++++++++++++++++++-----------
 1 file changed, 20 insertions(+), 11 deletions(-)

diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index a984e08eb084..0f45a489ccf9 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1562,9 +1562,13 @@ static struct iommu_ops arm_smmu_ops = {
 static void arm_smmu_device_reset(struct arm_smmu_device *smmu)
 {
 	void __iomem *gr0_base = ARM_SMMU_GR0(smmu);
-	void __iomem *sctlr_base = ARM_SMMU_CB_BASE(smmu) + ARM_SMMU_CB_SCTLR;
+	void __iomem *cb_base;
 	int i = 0;
-	u32 scr0 = readl_relaxed(gr0_base + ARM_SMMU_GR0_sCR0);
+	u32 reg;
+
+	/* Clear Global FSR */
+	reg = readl_relaxed(gr0_base + ARM_SMMU_GR0_sGFSR);
+	writel(reg, gr0_base + ARM_SMMU_GR0_sGFSR);
 
 	/* Mark all SMRn as invalid and all S2CRn as bypass */
 	for (i = 0; i < smmu->num_mapping_groups; ++i) {
@@ -1572,33 +1576,38 @@ static void arm_smmu_device_reset(struct arm_smmu_device *smmu)
 		writel_relaxed(S2CR_TYPE_BYPASS, gr0_base + ARM_SMMU_GR0_S2CR(i));
 	}
 
-	/* Make sure all context banks are disabled */
-	for (i = 0; i < smmu->num_context_banks; ++i)
-		writel_relaxed(0, sctlr_base + ARM_SMMU_CB(smmu, i));
+	/* Make sure all context banks are disabled and clear CB_FSR  */
+	for (i = 0; i < smmu->num_context_banks; ++i) {
+		cb_base = ARM_SMMU_CB_BASE(smmu) + ARM_SMMU_CB(smmu, i);
+		writel_relaxed(0, cb_base + ARM_SMMU_CB_SCTLR);
+		writel_relaxed(FSR_FAULT, cb_base + ARM_SMMU_CB_FSR);
+	}
 
 	/* Invalidate the TLB, just in case */
 	writel_relaxed(0, gr0_base + ARM_SMMU_GR0_STLBIALL);
 	writel_relaxed(0, gr0_base + ARM_SMMU_GR0_TLBIALLH);
 	writel_relaxed(0, gr0_base + ARM_SMMU_GR0_TLBIALLNSNH);
 
+	reg = readl_relaxed(gr0_base + ARM_SMMU_GR0_sCR0);
+
 	/* Enable fault reporting */
-	scr0 |= (sCR0_GFRE | sCR0_GFIE | sCR0_GCFGFRE | sCR0_GCFGFIE);
+	reg |= (sCR0_GFRE | sCR0_GFIE | sCR0_GCFGFRE | sCR0_GCFGFIE);
 
 	/* Disable TLB broadcasting. */
-	scr0 |= (sCR0_VMIDPNE | sCR0_PTM);
+	reg |= (sCR0_VMIDPNE | sCR0_PTM);
 
 	/* Enable client access, but bypass when no mapping is found */
-	scr0 &= ~(sCR0_CLIENTPD | sCR0_USFCFG);
+	reg &= ~(sCR0_CLIENTPD | sCR0_USFCFG);
 
 	/* Disable forced broadcasting */
-	scr0 &= ~sCR0_FB;
+	reg &= ~sCR0_FB;
 
 	/* Don't upgrade barriers */
-	scr0 &= ~(sCR0_BSU_MASK << sCR0_BSU_SHIFT);
+	reg &= ~(sCR0_BSU_MASK << sCR0_BSU_SHIFT);
 
 	/* Push the button */
 	arm_smmu_tlb_sync(smmu);
-	writel_relaxed(scr0, gr0_base + ARM_SMMU_GR0_sCR0);
+	writel_relaxed(reg, gr0_base + ARM_SMMU_GR0_sCR0);
 }
 
 static int arm_smmu_id_size_to_bits(int size)
-- 
cgit 


From 080972aaff6f6634fe1a6195ecc25e4e0904348e Mon Sep 17 00:00:00 2001
From: Jean-Francois Moine <moinejf@free.fr>
Date: Tue, 8 Oct 2013 19:41:19 +0200
Subject: ARM: Dove: Add the audio devices in DT

This patch adds the nodes to instantiate the audio devices of the Dove
boards.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/dove.dtsi | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi
index 499abadf86f0..1e60db1ae353 100644
--- a/arch/arm/boot/dts/dove.dtsi
+++ b/arch/arm/boot/dts/dove.dtsi
@@ -573,6 +573,24 @@
 					phy-handle = <&ethphy>;
 				};
 			};
+
+			audio0: audio-controller@b0000 {
+				compatible = "marvell,dove-audio";
+				reg = <0xb0000 0x2210>;
+				interrupts = <19>, <20>;
+				clocks = <&gate_clk 12>;
+				clock-names = "internal";
+				status = "disabled";
+			};
+
+			audio1: audio-controller@b4000 {
+				compatible = "marvell,dove-audio";
+				reg = <0xb4000 0x2210>;
+				interrupts = <21>, <22>;
+				clocks = <&gate_clk 13>;
+				clock-names = "internal";
+				status = "disabled";
+			};
 		};
 	};
 };
-- 
cgit 


From 34ea5342bd6da63f666215c4ef4b7b3948511c14 Mon Sep 17 00:00:00 2001
From: Jean-Francois Moine <moinejf@free.fr>
Date: Tue, 8 Oct 2013 20:56:17 +0200
Subject: ARM: Dove: Add the audio device to the Cubox DT

This patch activates the audio device of the Cubox.

The audio flow (pin mpp_audio1) is output on both I2S and S/PDIF.

The third si5351 clock (#2, pin mpp13) is used as the external clock.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/dove-cubox.dts |  8 ++++++++
 arch/arm/boot/dts/dove.dtsi      | 10 ++++++++++
 2 files changed, 18 insertions(+)

diff --git a/arch/arm/boot/dts/dove-cubox.dts b/arch/arm/boot/dts/dove-cubox.dts
index 4af59b6dce0f..173d46304cd2 100644
--- a/arch/arm/boot/dts/dove-cubox.dts
+++ b/arch/arm/boot/dts/dove-cubox.dts
@@ -132,3 +132,11 @@
 		reg = <0>;
 	};
 };
+
+&audio1 {
+	status = "okay";
+	clocks = <&gate_clk 13>, <&si5351 2>;
+	clock-names = "internal", "extclk";
+	pinctrl-0 = <&pmx_audio1_i2s1_spdifo &pmx_audio1_extclk>;
+	pinctrl-names = "default";
+};
diff --git a/arch/arm/boot/dts/dove.dtsi b/arch/arm/boot/dts/dove.dtsi
index 1e60db1ae353..113a8bc7bee7 100644
--- a/arch/arm/boot/dts/dove.dtsi
+++ b/arch/arm/boot/dts/dove.dtsi
@@ -297,6 +297,11 @@
 					marvell,function = "gpio";
 				};
 
+				pmx_audio1_extclk: pmx-audio1-extclk {
+					marvell,pins = "mpp13";
+					marvell,function = "audio1";
+				};
+
 				pmx_gpio_14: pmx-gpio-14 {
 					marvell,pins = "mpp14";
 					marvell,function = "gpio";
@@ -372,6 +377,11 @@
 					marvell,function = "gpio";
 				};
 
+				pmx_audio1_i2s1_spdifo: pmx-audio1-i2s1-spdifo {
+					marvell,pins = "mpp_audio1";
+					marvell,function = "i2s1/spdifo";
+				};
+
 				pmx_spi0: pmx-spi0 {
 					marvell,pins = "mpp_spi0";
 					marvell,function = "spi0";
-- 
cgit 


From 1deb122c724edfd799a4d7d0b88ff14c365c9e69 Mon Sep 17 00:00:00 2001
From: Jean-Francois Moine <moinejf@free.fr>
Date: Tue, 8 Oct 2013 20:20:27 +0200
Subject: ARM: Dove: fix bad properties of the si5351 clkout2 used by Cubox
 audio

As defined in the DT, clkout2 is not allowed to change the pll inside
si5351.

This patch extends the properties of clkout2 so that it works as the
external clock of the audio device in the Cubox.

Also, as the second si5351 clock is not used in the Cubox, its
definition is removed.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/dove-cubox.dts | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/arch/arm/boot/dts/dove-cubox.dts b/arch/arm/boot/dts/dove-cubox.dts
index 173d46304cd2..8349a248ecea 100644
--- a/arch/arm/boot/dts/dove-cubox.dts
+++ b/arch/arm/boot/dts/dove-cubox.dts
@@ -99,18 +99,12 @@
 			silabs,pll-master;
 		};
 
-		clkout1 {
-			reg = <1>;
-			silabs,drive-strength = <8>;
-			silabs,multisynth-source = <1>;
-			silabs,clock-source = <0>;
-			silabs,pll-master;
-		};
-
 		clkout2 {
 			reg = <2>;
+			silabs,drive-strength = <8>;
 			silabs,multisynth-source = <1>;
 			silabs,clock-source = <0>;
+			silabs,pll-master;
 		};
 	};
 };
-- 
cgit 


From 2dfcb802d6bd54a2353678c6434846d94b058f2c Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Wed, 9 Oct 2013 13:51:29 +0100
Subject: ARM: perf: fix group validation for mixed software and hardware
 groups

Since software events can always be scheduled, perf allows software and
hardware events to be mixed together in the same event group. There are
two ways in which this can come about:

  (1) A SW event is added to a HW group. This validates using the HW PMU
      of the group leader.

  (2) A HW event is added to a SW group. This inserts the SW events and
      the new HW event into a HW context, but the SW event remains the
      group leader.

When validating the latter case, we would ideally compare the PMU of
each event in the group with the relevant HW PMU. The problem is, in the
face of potentially multiple HW PMUs, we don't have a handle on the
relevant structure. Commit 7b9f72c62ed0 ("ARM: perf: clean up event
group validation") attempting to resolve this issue, but actually made
things *worse* by comparing with the leader PMU. If the leader is a SW
event, then we automatically `pass' all the HW events during validation!

This patch removes the check against the leader PMU. Whilst this will
allow events from multiple HW PMUs to be grouped together, that should
probably be dealt with in perf core as the result of a later patch.

Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 arch/arm/kernel/perf_event.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c
index e186ee1e63f6..bc3f2efa0d86 100644
--- a/arch/arm/kernel/perf_event.c
+++ b/arch/arm/kernel/perf_event.c
@@ -256,12 +256,11 @@ validate_event(struct pmu_hw_events *hw_events,
 	       struct perf_event *event)
 {
 	struct arm_pmu *armpmu = to_arm_pmu(event->pmu);
-	struct pmu *leader_pmu = event->group_leader->pmu;
 
 	if (is_software_event(event))
 		return 1;
 
-	if (event->pmu != leader_pmu || event->state < PERF_EVENT_STATE_OFF)
+	if (event->state < PERF_EVENT_STATE_OFF)
 		return 1;
 
 	if (event->state == PERF_EVENT_STATE_OFF && !event->attr.enable_on_exec)
-- 
cgit 


From 01533e9720c8527faf0bc6e476c4c911a488e268 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue, 3 Sep 2013 12:20:12 -0300
Subject: perf trace: Put syscall formatter parms into struct

So that we can add more state to formatters without having to modify
all of them.

Example is to pass a table to a generic string formatter, like for
setitimer 'which' arg.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-zyi2esmas5wfrxznh0x0fkiz@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 96 +++++++++++++++++++++++-----------------------
 1 file changed, 48 insertions(+), 48 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 71aa3e35406b..939426c7dbde 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -33,22 +33,24 @@
 # define MADV_UNMERGEABLE	13
 #endif
 
+struct syscall_arg {
+	unsigned long val;
+	u8	      idx;
+	u8	      mask;
+};
+
 static size_t syscall_arg__scnprintf_hex(char *bf, size_t size,
-					 unsigned long arg,
-					 u8 arg_idx __maybe_unused,
-					 u8 *arg_mask __maybe_unused)
+					 struct syscall_arg *arg)
 {
-	return scnprintf(bf, size, "%#lx", arg);
+	return scnprintf(bf, size, "%#lx", arg->val);
 }
 
 #define SCA_HEX syscall_arg__scnprintf_hex
 
 static size_t syscall_arg__scnprintf_whence(char *bf, size_t size,
-					    unsigned long arg,
-					    u8 arg_idx __maybe_unused,
-					    u8 *arg_mask __maybe_unused)
+					    struct syscall_arg *arg)
 {
-	int whence = arg;
+	int whence = arg->val;
 
 	switch (whence) {
 #define P_WHENCE(n) case SEEK_##n: return scnprintf(bf, size, #n)
@@ -71,11 +73,9 @@ static size_t syscall_arg__scnprintf_whence(char *bf, size_t size,
 #define SCA_WHENCE syscall_arg__scnprintf_whence
 
 static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size,
-					       unsigned long arg,
-					       u8 arg_idx __maybe_unused,
-					       u8 *arg_mask __maybe_unused)
+					       struct syscall_arg *arg)
 {
-	int printed = 0, prot = arg;
+	int printed = 0, prot = arg->val;
 
 	if (prot == PROT_NONE)
 		return scnprintf(bf, size, "NONE");
@@ -104,10 +104,9 @@ static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size,
 #define SCA_MMAP_PROT syscall_arg__scnprintf_mmap_prot
 
 static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size,
-						unsigned long arg, u8 arg_idx __maybe_unused,
-						u8 *arg_mask __maybe_unused)
+						struct syscall_arg *arg)
 {
-	int printed = 0, flags = arg;
+	int printed = 0, flags = arg->val;
 
 #define	P_MMAP_FLAG(n) \
 	if (flags & MAP_##n) { \
@@ -148,10 +147,9 @@ static size_t syscall_arg__scnprintf_mmap_flags(char *bf, size_t size,
 #define SCA_MMAP_FLAGS syscall_arg__scnprintf_mmap_flags
 
 static size_t syscall_arg__scnprintf_madvise_behavior(char *bf, size_t size,
-						      unsigned long arg, u8 arg_idx __maybe_unused,
-						      u8 *arg_mask __maybe_unused)
+						      struct syscall_arg *arg)
 {
-	int behavior = arg;
+	int behavior = arg->val;
 
 	switch (behavior) {
 #define	P_MADV_BHV(n) case MADV_##n: return scnprintf(bf, size, #n)
@@ -190,8 +188,7 @@ static size_t syscall_arg__scnprintf_madvise_behavior(char *bf, size_t size,
 
 #define SCA_MADV_BHV syscall_arg__scnprintf_madvise_behavior
 
-static size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, unsigned long arg,
-					      u8 arg_idx __maybe_unused, u8 *arg_mask)
+static size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, struct syscall_arg *arg)
 {
 	enum syscall_futex_args {
 		SCF_UADDR   = (1 << 0),
@@ -201,24 +198,24 @@ static size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, unsigned lo
 		SCF_UADDR2  = (1 << 4),
 		SCF_VAL3    = (1 << 5),
 	};
-	int op = arg;
+	int op = arg->val;
 	int cmd = op & FUTEX_CMD_MASK;
 	size_t printed = 0;
 
 	switch (cmd) {
 #define	P_FUTEX_OP(n) case FUTEX_##n: printed = scnprintf(bf, size, #n);
-	P_FUTEX_OP(WAIT);	    *arg_mask |= SCF_VAL3|SCF_UADDR2;		  break;
-	P_FUTEX_OP(WAKE);	    *arg_mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
-	P_FUTEX_OP(FD);		    *arg_mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
-	P_FUTEX_OP(REQUEUE);	    *arg_mask |= SCF_VAL3|SCF_TIMEOUT;	          break;
-	P_FUTEX_OP(CMP_REQUEUE);    *arg_mask |= SCF_TIMEOUT;			  break;
-	P_FUTEX_OP(CMP_REQUEUE_PI); *arg_mask |= SCF_TIMEOUT;			  break;
+	P_FUTEX_OP(WAIT);	    arg->mask |= SCF_VAL3|SCF_UADDR2;		  break;
+	P_FUTEX_OP(WAKE);	    arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
+	P_FUTEX_OP(FD);		    arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
+	P_FUTEX_OP(REQUEUE);	    arg->mask |= SCF_VAL3|SCF_TIMEOUT;	          break;
+	P_FUTEX_OP(CMP_REQUEUE);    arg->mask |= SCF_TIMEOUT;			  break;
+	P_FUTEX_OP(CMP_REQUEUE_PI); arg->mask |= SCF_TIMEOUT;			  break;
 	P_FUTEX_OP(WAKE_OP);							  break;
-	P_FUTEX_OP(LOCK_PI);	    *arg_mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
-	P_FUTEX_OP(UNLOCK_PI);	    *arg_mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
-	P_FUTEX_OP(TRYLOCK_PI);	    *arg_mask |= SCF_VAL3|SCF_UADDR2;		  break;
-	P_FUTEX_OP(WAIT_BITSET);    *arg_mask |= SCF_UADDR2;			  break;
-	P_FUTEX_OP(WAKE_BITSET);    *arg_mask |= SCF_UADDR2;			  break;
+	P_FUTEX_OP(LOCK_PI);	    arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
+	P_FUTEX_OP(UNLOCK_PI);	    arg->mask |= SCF_VAL3|SCF_UADDR2|SCF_TIMEOUT; break;
+	P_FUTEX_OP(TRYLOCK_PI);	    arg->mask |= SCF_VAL3|SCF_UADDR2;		  break;
+	P_FUTEX_OP(WAIT_BITSET);    arg->mask |= SCF_UADDR2;			  break;
+	P_FUTEX_OP(WAKE_BITSET);    arg->mask |= SCF_UADDR2;			  break;
 	P_FUTEX_OP(WAIT_REQUEUE_PI);						  break;
 	default: printed = scnprintf(bf, size, "%#x", cmd);			  break;
 	}
@@ -235,13 +232,12 @@ static size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, unsigned lo
 #define SCA_FUTEX_OP  syscall_arg__scnprintf_futex_op
 
 static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size,
-					       unsigned long arg,
-					       u8 arg_idx, u8 *arg_mask)
+					       struct syscall_arg *arg)
 {
-	int printed = 0, flags = arg;
+	int printed = 0, flags = arg->val;
 
 	if (!(flags & O_CREAT))
-		*arg_mask |= 1 << (arg_idx + 1); /* Mask the mode parm */
+		arg->mask |= 1 << (arg->idx + 1); /* Mask the mode parm */
 
 	if (flags == 0)
 		return scnprintf(bf, size, "RDONLY");
@@ -294,7 +290,7 @@ static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size,
 static struct syscall_fmt {
 	const char *name;
 	const char *alias;
-	size_t	   (*arg_scnprintf[6])(char *bf, size_t size, unsigned long arg, u8 arg_idx, u8 *arg_mask);
+	size_t	   (*arg_scnprintf[6])(char *bf, size_t size, struct syscall_arg *arg);
 	bool	   errmsg;
 	bool	   timeout;
 	bool	   hexret;
@@ -364,8 +360,7 @@ struct syscall {
 	const char	    *name;
 	bool		    filtered;
 	struct syscall_fmt  *fmt;
-	size_t		    (**arg_scnprintf)(char *bf, size_t size,
-					      unsigned long arg, u8 arg_idx, u8 *args_mask);
+	size_t		    (**arg_scnprintf)(char *bf, size_t size, struct syscall_arg *arg);
 };
 
 static size_t fprintf_duration(unsigned long t, FILE *fp)
@@ -605,30 +600,35 @@ static int trace__read_syscall_info(struct trace *trace, int id)
 static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size,
 				      unsigned long *args)
 {
-	int i = 0;
 	size_t printed = 0;
 
 	if (sc->tp_format != NULL) {
 		struct format_field *field;
-		u8 mask = 0, bit = 1;
+		u8 bit = 1;
+		struct syscall_arg arg = {
+			.idx  = 0,
+			.mask = 0,
+		};
 
 		for (field = sc->tp_format->format.fields->next; field;
-		     field = field->next, ++i, bit <<= 1) {
-			if (mask & bit)
+		     field = field->next, ++arg.idx, bit <<= 1) {
+			if (arg.mask & bit)
 				continue;
 
 			printed += scnprintf(bf + printed, size - printed,
 					     "%s%s: ", printed ? ", " : "", field->name);
-
-			if (sc->arg_scnprintf && sc->arg_scnprintf[i]) {
-				printed += sc->arg_scnprintf[i](bf + printed, size - printed,
-								args[i], i, &mask);
+			if (sc->arg_scnprintf && sc->arg_scnprintf[arg.idx]) {
+				arg.val = args[arg.idx];
+				printed += sc->arg_scnprintf[arg.idx](bf + printed,
+								      size - printed, &arg);
 			} else {
 				printed += scnprintf(bf + printed, size - printed,
-						     "%ld", args[i]);
+						     "%ld", args[arg.idx]);
 			}
 		}
 	} else {
+		int i = 0;
+
 		while (i < 6) {
 			printed += scnprintf(bf + printed, size - printed,
 					     "%sarg%d: %ld",
-- 
cgit 


From 1f115cb72e44391fac3ab1c562a77b421469ac2d Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue, 3 Sep 2013 15:50:28 -0300
Subject: perf trace: Allow passing parms to arg formatters

So that we can have generic formatters that act upon specific
parameters.

Start using them with a simple string table that assumes entries
will be indexes to a string table, like with the 'which' parm
for the set and getitimer syscalls

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-r0dqhapr8j6150v1wctgg340@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 939426c7dbde..386ca2058ee7 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -35,10 +35,35 @@
 
 struct syscall_arg {
 	unsigned long val;
+	void	      *parm;
 	u8	      idx;
 	u8	      mask;
 };
 
+struct strarray {
+	int	    nr_entries;
+	const char **entries;
+};
+
+#define DEFINE_STRARRAY(array) struct strarray strarray__##array = { \
+	.nr_entries = ARRAY_SIZE(array), \
+	.entries = array, \
+}
+
+static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size,
+					      struct syscall_arg *arg)
+{
+	int idx = arg->val;
+	struct strarray *sa = arg->parm;
+
+	if (idx < 0 || idx >= sa->nr_entries)
+		return scnprintf(bf, size, "%d", idx);
+
+	return scnprintf(bf, size, "%s", sa->entries[idx]);
+}
+
+#define SCA_STRARRAY syscall_arg__scnprintf_strarray
+
 static size_t syscall_arg__scnprintf_hex(char *bf, size_t size,
 					 struct syscall_arg *arg)
 {
@@ -229,6 +254,9 @@ static size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, struct sysc
 	return printed;
 }
 
+static const char *itimers[] = { "REAL", "VIRTUAL", "PROF", };
+static DEFINE_STRARRAY(itimers);
+
 #define SCA_FUTEX_OP  syscall_arg__scnprintf_futex_op
 
 static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size,
@@ -291,6 +319,7 @@ static struct syscall_fmt {
 	const char *name;
 	const char *alias;
 	size_t	   (*arg_scnprintf[6])(char *bf, size_t size, struct syscall_arg *arg);
+	void	   *arg_parm[6];
 	bool	   errmsg;
 	bool	   timeout;
 	bool	   hexret;
@@ -305,6 +334,9 @@ static struct syscall_fmt {
 	{ .name	    = "fstatat",    .errmsg = true, .alias = "newfstatat", },
 	{ .name	    = "futex",	    .errmsg = true,
 	  .arg_scnprintf = { [1] = SCA_FUTEX_OP, /* op */ }, },
+	{ .name	    = "getitimer",  .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* which */ },
+	  .arg_parm	 = { [0] = &strarray__itimers, /* which */ }, },
 	{ .name	    = "ioctl",	    .errmsg = true,
 	  .arg_scnprintf = { [2] = SCA_HEX, /* arg */ }, },
 	{ .name	    = "lseek",	    .errmsg = true,
@@ -338,6 +370,9 @@ static struct syscall_fmt {
 	{ .name	    = "read",	    .errmsg = true, },
 	{ .name	    = "recvfrom",   .errmsg = true, },
 	{ .name	    = "select",	    .errmsg = true, .timeout = true, },
+	{ .name	    = "setitimer",  .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* which */ },
+	  .arg_parm	 = { [0] = &strarray__itimers, /* which */ }, },
 	{ .name	    = "socket",	    .errmsg = true, },
 	{ .name	    = "stat",	    .errmsg = true, .alias = "newstat", },
 	{ .name	    = "uname",	    .errmsg = true, .alias = "newuname", },
@@ -361,6 +396,7 @@ struct syscall {
 	bool		    filtered;
 	struct syscall_fmt  *fmt;
 	size_t		    (**arg_scnprintf)(char *bf, size_t size, struct syscall_arg *arg);
+	void		    **arg_parm;
 };
 
 static size_t fprintf_duration(unsigned long t, FILE *fp)
@@ -528,6 +564,9 @@ static int syscall__set_arg_fmts(struct syscall *sc)
 	if (sc->arg_scnprintf == NULL)
 		return -1;
 
+	if (sc->fmt)
+		sc->arg_parm = sc->fmt->arg_parm;
+
 	for (field = sc->tp_format->format.fields->next; field; field = field->next) {
 		if (sc->fmt && sc->fmt->arg_scnprintf[idx])
 			sc->arg_scnprintf[idx] = sc->fmt->arg_scnprintf[idx];
@@ -619,6 +658,8 @@ static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size,
 					     "%s%s: ", printed ? ", " : "", field->name);
 			if (sc->arg_scnprintf && sc->arg_scnprintf[arg.idx]) {
 				arg.val = args[arg.idx];
+				if (sc->arg_parm)
+					arg.parm = sc->arg_parm[arg.idx];
 				printed += sc->arg_scnprintf[arg.idx](bf + printed,
 								      size - printed, &arg);
 			} else {
-- 
cgit 


From efe6b882cda2a9967a629fa14b6106b6a9a558a2 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue, 3 Sep 2013 16:15:12 -0300
Subject: perf trace: Use strarray for ltrace's whence arg

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-5f9jhbq8my4ojarhtlygveox@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 40 +++++++++++++---------------------------
 1 file changed, 13 insertions(+), 27 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 386ca2058ee7..7cb60526a6f1 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -72,31 +72,6 @@ static size_t syscall_arg__scnprintf_hex(char *bf, size_t size,
 
 #define SCA_HEX syscall_arg__scnprintf_hex
 
-static size_t syscall_arg__scnprintf_whence(char *bf, size_t size,
-					    struct syscall_arg *arg)
-{
-	int whence = arg->val;
-
-	switch (whence) {
-#define P_WHENCE(n) case SEEK_##n: return scnprintf(bf, size, #n)
-	P_WHENCE(SET);
-	P_WHENCE(CUR);
-	P_WHENCE(END);
-#ifdef SEEK_DATA
-	P_WHENCE(DATA);
-#endif
-#ifdef SEEK_HOLE
-	P_WHENCE(HOLE);
-#endif
-#undef P_WHENCE
-	default: break;
-	}
-
-	return scnprintf(bf, size, "%#x", whence);
-}
-
-#define SCA_WHENCE syscall_arg__scnprintf_whence
-
 static size_t syscall_arg__scnprintf_mmap_prot(char *bf, size_t size,
 					       struct syscall_arg *arg)
 {
@@ -254,10 +229,20 @@ static size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, struct sysc
 	return printed;
 }
 
+#define SCA_FUTEX_OP  syscall_arg__scnprintf_futex_op
+
 static const char *itimers[] = { "REAL", "VIRTUAL", "PROF", };
 static DEFINE_STRARRAY(itimers);
 
-#define SCA_FUTEX_OP  syscall_arg__scnprintf_futex_op
+static const char *whences[] = { "SET", "CUR", "END",
+#ifdef SEEK_DATA
+"DATA",
+#endif
+#ifdef SEEK_HOLE
+"HOLE",
+#endif
+};
+static DEFINE_STRARRAY(whences);
 
 static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size,
 					       struct syscall_arg *arg)
@@ -340,7 +325,8 @@ static struct syscall_fmt {
 	{ .name	    = "ioctl",	    .errmsg = true,
 	  .arg_scnprintf = { [2] = SCA_HEX, /* arg */ }, },
 	{ .name	    = "lseek",	    .errmsg = true,
-	  .arg_scnprintf = { [2] = SCA_WHENCE, /* whence */ }, },
+	  .arg_scnprintf = { [2] = SCA_STRARRAY, /* whence */ },
+	  .arg_parm	 = { [2] = &strarray__whences, /* whence */ }, },
 	{ .name	    = "lstat",	    .errmsg = true, .alias = "newlstat", },
 	{ .name     = "madvise",    .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_HEX,	 /* start */
-- 
cgit 


From 80f587d5f9424ebdf93abbe79ab87e7fb7d4699d Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue, 3 Sep 2013 16:28:58 -0300
Subject: perf trace: Beautify fcntl 'cmd' arg

This is just for the low hanging fruit 'cmd' arg, a proper beautifier
will as well use arg->mask to ignore the third arg for some of the
cmds.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-phhvcyi9vdnxw9l11tbquvru@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 7cb60526a6f1..8455a0af852c 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -244,6 +244,14 @@ static const char *whences[] = { "SET", "CUR", "END",
 };
 static DEFINE_STRARRAY(whences);
 
+static const char *fcntl_cmds[] = {
+	"DUPFD", "GETFD", "SETFD", "GETFL", "SETFL", "GETLK", "SETLK",
+	"SETLKW", "SETOWN", "GETOWN", "SETSIG", "GETSIG", "F_GETLK64",
+	"F_SETLK64", "F_SETLKW64", "F_SETOWN_EX", "F_GETOWN_EX",
+	"F_GETOWNER_UIDS",
+};
+static DEFINE_STRARRAY(fcntl_cmds);
+
 static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size,
 					       struct syscall_arg *arg)
 {
@@ -315,6 +323,9 @@ static struct syscall_fmt {
 	  .arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, },
 	{ .name	    = "mmap",	    .hexret = true, },
 	{ .name	    = "connect",    .errmsg = true, },
+	{ .name	    = "fcntl",	    .errmsg = true,
+	  .arg_scnprintf = { [1] = SCA_STRARRAY, /* cmd */ },
+	  .arg_parm	 = { [1] = &strarray__fcntl_cmds, /* cmd */ }, },
 	{ .name	    = "fstat",	    .errmsg = true, .alias = "newfstat", },
 	{ .name	    = "fstatat",    .errmsg = true, .alias = "newfstatat", },
 	{ .name	    = "futex",	    .errmsg = true,
-- 
cgit 


From eb5b1b1475d5ce6ebe84fd4c641545a41839d5f9 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue, 3 Sep 2013 16:37:46 -0300
Subject: perf trace: Beautify rt_sigprocmask 'how' arg

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-e2epkc38e3x0uqmi1xie4tgc@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 8455a0af852c..ecc83ce99bfe 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -252,6 +252,9 @@ static const char *fcntl_cmds[] = {
 };
 static DEFINE_STRARRAY(fcntl_cmds);
 
+static const char *sighow[] = { "BLOCK", "UNBLOCK", "SETMASK", };
+static DEFINE_STRARRAY(sighow);
+
 static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size,
 					       struct syscall_arg *arg)
 {
@@ -366,6 +369,9 @@ static struct syscall_fmt {
 	{ .name	    = "pwrite",	    .errmsg = true, .alias = "pwrite64", },
 	{ .name	    = "read",	    .errmsg = true, },
 	{ .name	    = "recvfrom",   .errmsg = true, },
+	{ .name	    = "rt_sigprocmask", .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* how */ },
+	  .arg_parm	 = { [0] = &strarray__sighow, /* how */ }, },
 	{ .name	    = "select",	    .errmsg = true, .timeout = true, },
 	{ .name	    = "setitimer",  .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* which */ },
-- 
cgit 


From 8bad5b0abfdbd0866c2b0445fdee8a8c2c38865b Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue, 3 Sep 2013 17:17:15 -0300
Subject: perf trace: Beautify signal number arg in several syscalls

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-ek8w714ramabyl5jqqvjlbyb@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 57 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 57 insertions(+)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index ecc83ce99bfe..eb0bbff52b42 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -311,6 +311,51 @@ static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size,
 
 #define SCA_OPEN_FLAGS syscall_arg__scnprintf_open_flags
 
+static size_t syscall_arg__scnprintf_signum(char *bf, size_t size, struct syscall_arg *arg)
+{
+	int sig = arg->val;
+
+	switch (sig) {
+#define	P_SIGNUM(n) case SIG##n: return scnprintf(bf, size, #n)
+	P_SIGNUM(HUP);
+	P_SIGNUM(INT);
+	P_SIGNUM(QUIT);
+	P_SIGNUM(ILL);
+	P_SIGNUM(TRAP);
+	P_SIGNUM(ABRT);
+	P_SIGNUM(BUS);
+	P_SIGNUM(FPE);
+	P_SIGNUM(KILL);
+	P_SIGNUM(USR1);
+	P_SIGNUM(SEGV);
+	P_SIGNUM(USR2);
+	P_SIGNUM(PIPE);
+	P_SIGNUM(ALRM);
+	P_SIGNUM(TERM);
+	P_SIGNUM(STKFLT);
+	P_SIGNUM(CHLD);
+	P_SIGNUM(CONT);
+	P_SIGNUM(STOP);
+	P_SIGNUM(TSTP);
+	P_SIGNUM(TTIN);
+	P_SIGNUM(TTOU);
+	P_SIGNUM(URG);
+	P_SIGNUM(XCPU);
+	P_SIGNUM(XFSZ);
+	P_SIGNUM(VTALRM);
+	P_SIGNUM(PROF);
+	P_SIGNUM(WINCH);
+	P_SIGNUM(IO);
+	P_SIGNUM(PWR);
+	P_SIGNUM(SYS);
+	default: break;
+	}
+
+	return scnprintf(bf, size, "%#x", sig);
+}
+
+#define SCA_SIGNUM syscall_arg__scnprintf_signum
+
 static struct syscall_fmt {
 	const char *name;
 	const char *alias;
@@ -338,6 +383,8 @@ static struct syscall_fmt {
 	  .arg_parm	 = { [0] = &strarray__itimers, /* which */ }, },
 	{ .name	    = "ioctl",	    .errmsg = true,
 	  .arg_scnprintf = { [2] = SCA_HEX, /* arg */ }, },
+	{ .name	    = "kill",	    .errmsg = true,
+	  .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
 	{ .name	    = "lseek",	    .errmsg = true,
 	  .arg_scnprintf = { [2] = SCA_STRARRAY, /* whence */ },
 	  .arg_parm	 = { [2] = &strarray__whences, /* whence */ }, },
@@ -369,15 +416,25 @@ static struct syscall_fmt {
 	{ .name	    = "pwrite",	    .errmsg = true, .alias = "pwrite64", },
 	{ .name	    = "read",	    .errmsg = true, },
 	{ .name	    = "recvfrom",   .errmsg = true, },
+	{ .name	    = "rt_sigaction", .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_SIGNUM, /* sig */ }, },
 	{ .name	    = "rt_sigprocmask", .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* how */ },
 	  .arg_parm	 = { [0] = &strarray__sighow, /* how */ }, },
+	{ .name	    = "rt_sigqueueinfo", .errmsg = true,
+	  .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
+	{ .name	    = "rt_tgsigqueueinfo", .errmsg = true,
+	  .arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, },
 	{ .name	    = "select",	    .errmsg = true, .timeout = true, },
 	{ .name	    = "setitimer",  .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* which */ },
 	  .arg_parm	 = { [0] = &strarray__itimers, /* which */ }, },
 	{ .name	    = "socket",	    .errmsg = true, },
 	{ .name	    = "stat",	    .errmsg = true, .alias = "newstat", },
+	{ .name	    = "tgkill",	    .errmsg = true,
+	  .arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, },
+	{ .name	    = "tkill",	    .errmsg = true,
+	  .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
 	{ .name	    = "uname",	    .errmsg = true, .alias = "newuname", },
 };
 
-- 
cgit 


From e10bce815d5c0e7eb793231e4334839b2cd0d81f Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Wed, 4 Sep 2013 10:27:41 -0300
Subject: perf trace: Beautify socket 'family' arg

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-8xuaupgmy82v7sha3l09oaux@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index eb0bbff52b42..62801663bd46 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -255,6 +255,16 @@ static DEFINE_STRARRAY(fcntl_cmds);
 static const char *sighow[] = { "BLOCK", "UNBLOCK", "SETMASK", };
 static DEFINE_STRARRAY(sighow);
 
+static const char *socket_families[] = {
+	"UNSPEC", "LOCAL", "INET", "AX25", "IPX", "APPLETALK", "NETROM",
+	"BRIDGE", "ATMPVC", "X25", "INET6", "ROSE", "DECnet", "NETBEUI",
+	"SECURITY", "KEY", "NETLINK", "PACKET", "ASH", "ECONET", "ATMSVC",
+	"RDS", "SNA", "IRDA", "PPPOX", "WANPIPE", "LLC", "IB", "CAN", "TIPC",
+	"BLUETOOTH", "IUCV", "RXRPC", "ISDN", "PHONET", "IEEE802154", "CAIF",
+	"ALG", "NFC", "VSOCK",
+};
+static DEFINE_STRARRAY(socket_families);
+
 static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size,
 					       struct syscall_arg *arg)
 {
@@ -429,7 +439,9 @@ static struct syscall_fmt {
 	{ .name	    = "setitimer",  .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* which */ },
 	  .arg_parm	 = { [0] = &strarray__itimers, /* which */ }, },
-	{ .name	    = "socket",	    .errmsg = true, },
+	{ .name	    = "socket",	    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */ },
+	  .arg_parm	 = { [0] = &strarray__socket_families, /* family */ }, },
 	{ .name	    = "stat",	    .errmsg = true, .alias = "newstat", },
 	{ .name	    = "tgkill",	    .errmsg = true,
 	  .arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, },
-- 
cgit 


From a28b24b27869d7a2fc0e6a0cae714641c83791a2 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Wed, 4 Sep 2013 11:00:44 -0300
Subject: perf trace: Beautify socket 'type' arg

Taking into account the fact that the SOCK_ types can be overriden for
ABI reasons on MIPS and also masking and interpreting the socket flags
(NONBLOCK and CLOEXEC), printing whatever is left in the flags bits
as an hex number, or'ed.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-cbn57082gq9v0sbsd67edwjq@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 50 +++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 49 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 62801663bd46..2b19aef7d3b5 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -265,6 +265,53 @@ static const char *socket_families[] = {
 };
 static DEFINE_STRARRAY(socket_families);
 
+#ifndef SOCK_TYPE_MASK
+#define SOCK_TYPE_MASK 0xf
+#endif
+
+static size_t syscall_arg__scnprintf_socket_type(char *bf, size_t size,
+						      struct syscall_arg *arg)
+{
+	size_t printed;
+	int type = arg->val,
+	    flags = type & ~SOCK_TYPE_MASK;
+
+	type &= SOCK_TYPE_MASK;
+	/*
+ 	 * Can't use a strarray, MIPS may override for ABI reasons.
+ 	 */
+	switch (type) {
+#define	P_SK_TYPE(n) case SOCK_##n: printed = scnprintf(bf, size, #n); break;
+	P_SK_TYPE(STREAM);
+	P_SK_TYPE(DGRAM);
+	P_SK_TYPE(RAW);
+	P_SK_TYPE(RDM);
+	P_SK_TYPE(SEQPACKET);
+	P_SK_TYPE(DCCP);
+	P_SK_TYPE(PACKET);
+#undef P_SK_TYPE
+	default:
+		printed = scnprintf(bf, size, "%#x", type);
+	}
+
+#define	P_SK_FLAG(n) \
+	if (flags & SOCK_##n) { \
+		printed += scnprintf(bf + printed, size - printed, "|%s", #n); \
+		flags &= ~SOCK_##n; \
+	}
+
+	P_SK_FLAG(CLOEXEC);
+	P_SK_FLAG(NONBLOCK);
+#undef P_SK_FLAG
+
+	if (flags)
+		printed += scnprintf(bf + printed, size - printed, "|%#x", flags);
+
+	return printed;
+}
+
+#define SCA_SK_TYPE syscall_arg__scnprintf_socket_type
+
 static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size,
 					       struct syscall_arg *arg)
 {
@@ -440,7 +487,8 @@ static struct syscall_fmt {
 	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* which */ },
 	  .arg_parm	 = { [0] = &strarray__itimers, /* which */ }, },
 	{ .name	    = "socket",	    .errmsg = true,
-	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */ },
+	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */
+			     [1] = SCA_SK_TYPE, /* type */ },
 	  .arg_parm	 = { [0] = &strarray__socket_families, /* family */ }, },
 	{ .name	    = "stat",	    .errmsg = true, .alias = "newstat", },
 	{ .name	    = "tgkill",	    .errmsg = true,
-- 
cgit 


From 511089994e33c9dbfe2c6e1fb2fb00b5e53866e8 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Wed, 4 Sep 2013 11:42:27 -0300
Subject: perf trace: Beautify access 'mode' arg

Removing the _OK suffix and using RWX when all three bits are set, for
instance.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-ypaz9k43lyqy94679feqnv8x@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 2b19aef7d3b5..7aa6bcacd51f 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -312,6 +312,33 @@ static size_t syscall_arg__scnprintf_socket_type(char *bf, size_t size,
 
 #define SCA_SK_TYPE syscall_arg__scnprintf_socket_type
 
+static size_t syscall_arg__scnprintf_access_mode(char *bf, size_t size,
+						 struct syscall_arg *arg)
+{
+	size_t printed = 0;
+	int mode = arg->val;
+
+	if (mode == F_OK) /* 0 */
+		return scnprintf(bf, size, "F");
+#define	P_MODE(n) \
+	if (mode & n##_OK) { \
+		printed += scnprintf(bf + printed, size - printed, "%s", #n); \
+		mode &= ~n##_OK; \
+	}
+
+	P_MODE(R);
+	P_MODE(W);
+	P_MODE(X);
+#undef P_MODE
+
+	if (mode)
+		printed += scnprintf(bf + printed, size - printed, "|%#x", mode);
+
+	return printed;
+}
+
+#define SCA_ACCMODE syscall_arg__scnprintf_access_mode
+
 static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size,
 					       struct syscall_arg *arg)
 {
@@ -422,7 +449,8 @@ static struct syscall_fmt {
 	bool	   timeout;
 	bool	   hexret;
 } syscall_fmts[] = {
-	{ .name	    = "access",	    .errmsg = true, },
+	{ .name	    = "access",	    .errmsg = true,
+	  .arg_scnprintf = { [1] = SCA_ACCMODE, /* mode */ }, },
 	{ .name	    = "arch_prctl", .errmsg = true, .alias = "prctl", },
 	{ .name	    = "brk",	    .hexret = true,
 	  .arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, },
-- 
cgit 


From c045bf02e47664af67f8970a6a67065ff51acf62 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Wed, 4 Sep 2013 11:52:33 -0300
Subject: perf trace: Beautify rlmimit resources

On the getrlimit, setrlimit and prlimit64 syscalls.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-pups75313afhn7p96qwhzs9v@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 7aa6bcacd51f..7ce036ee863b 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -252,6 +252,13 @@ static const char *fcntl_cmds[] = {
 };
 static DEFINE_STRARRAY(fcntl_cmds);
 
+static const char *rlimit_resources[] = {
+	"CPU", "FSIZE", "DATA", "STACK", "CORE", "RSS", "NPROC", "NOFILE",
+	"MEMLOCK", "AS", "LOCKS", "SIGPENDING", "MSGQUEUE", "NICE", "RTPRIO",
+	"RTTIME",
+};
+static DEFINE_STRARRAY(rlimit_resources);
+
 static const char *sighow[] = { "BLOCK", "UNBLOCK", "SETMASK", };
 static DEFINE_STRARRAY(sighow);
 
@@ -466,6 +473,9 @@ static struct syscall_fmt {
 	{ .name	    = "getitimer",  .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* which */ },
 	  .arg_parm	 = { [0] = &strarray__itimers, /* which */ }, },
+	{ .name	    = "getrlimit",  .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* resource */ },
+	  .arg_parm	 = { [0] = &strarray__rlimit_resources, /* resource */ }, },
 	{ .name	    = "ioctl",	    .errmsg = true,
 	  .arg_scnprintf = { [2] = SCA_HEX, /* arg */ }, },
 	{ .name	    = "kill",	    .errmsg = true,
@@ -498,6 +508,9 @@ static struct syscall_fmt {
 	{ .name	    = "poll",	    .errmsg = true, .timeout = true, },
 	{ .name	    = "ppoll",	    .errmsg = true, .timeout = true, },
 	{ .name	    = "pread",	    .errmsg = true, .alias = "pread64", },
+	{ .name	    = "prlimit64",  .errmsg = true,
+	  .arg_scnprintf = { [1] = SCA_STRARRAY, /* resource */ },
+	  .arg_parm	 = { [1] = &strarray__rlimit_resources, /* resource */ }, },
 	{ .name	    = "pwrite",	    .errmsg = true, .alias = "pwrite64", },
 	{ .name	    = "read",	    .errmsg = true, },
 	{ .name	    = "recvfrom",   .errmsg = true, },
@@ -514,6 +527,9 @@ static struct syscall_fmt {
 	{ .name	    = "setitimer",  .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* which */ },
 	  .arg_parm	 = { [0] = &strarray__itimers, /* which */ }, },
+	{ .name	    = "setrlimit",  .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* resource */ },
+	  .arg_parm	 = { [0] = &strarray__rlimit_resources, /* resource */ }, },
 	{ .name	    = "socket",	    .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */
 			     [1] = SCA_SK_TYPE, /* type */ },
-- 
cgit 


From 4bb09192d38ef08f0619667527cabb26354fff89 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Wed, 4 Sep 2013 12:37:43 -0600
Subject: perf trace: Add option to show full timestamp

Current timestamp shown for output is time relative to firt sample. This
patch adds an option to show the absolute perf_clock timestamp which is
useful when comparing output across commands (e.g., perf-trace to
perf-script).

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1378319865-55695-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-trace.txt | 4 ++++
 tools/perf/builtin-trace.c              | 7 +++++--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt
index daccd2c0a48f..a93e91aad583 100644
--- a/tools/perf/Documentation/perf-trace.txt
+++ b/tools/perf/Documentation/perf-trace.txt
@@ -78,6 +78,10 @@ the thread executes on the designated CPUs. Default is to monitor all CPUs.
 --input
 	Process events from a given perf data file.
 
+-T
+--time
+	Print full timestamp rather time relative to first sample.
+
 SEE ALSO
 --------
 linkperf:perf-record[1], linkperf:perf-script[1]
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 7ce036ee863b..bc21140ac782 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -624,6 +624,7 @@ struct trace {
 	struct perf_record_opts opts;
 	struct machine		host;
 	u64			base_time;
+	bool			full_time;
 	FILE			*output;
 	unsigned long		nr_events;
 	struct strlist		*ev_qualifier;
@@ -1066,7 +1067,7 @@ static int trace__process_sample(struct perf_tool *tool,
 	if (skip_sample(trace, sample))
 		return 0;
 
-	if (trace->base_time == 0)
+	if (!trace->full_time && trace->base_time == 0)
 		trace->base_time = sample->time;
 
 	if (handler)
@@ -1195,7 +1196,7 @@ again:
 				continue;
 			}
 
-			if (trace->base_time == 0)
+			if (!trace->full_time && trace->base_time == 0)
 				trace->base_time = sample.time;
 
 			if (type != PERF_RECORD_SAMPLE) {
@@ -1433,6 +1434,8 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
 		     trace__set_duration),
 	OPT_BOOLEAN(0, "sched", &trace.sched, "show blocking scheduler events"),
 	OPT_INCR('v', "verbose", &verbose, "be more verbose"),
+	OPT_BOOLEAN('T', "time", &trace.full_time,
+		    "Show full timestamp, not time relative to first start"),
 	OPT_END()
 	};
 	int err;
-- 
cgit 


From 770480592084d2c114adedfbe6740e345aaf2279 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Wed, 4 Sep 2013 12:37:44 -0600
Subject: perf trace: Remove duplicate mmap entry in syscall_fmts array

Entries in syscall_fmts need to be in alphabetical order, and the
duplicate entry breaks bsearch on new entries around this duplicate
entry.

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1378319865-55695-2-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index bc21140ac782..903416c573af 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -461,7 +461,6 @@ static struct syscall_fmt {
 	{ .name	    = "arch_prctl", .errmsg = true, .alias = "prctl", },
 	{ .name	    = "brk",	    .hexret = true,
 	  .arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, },
-	{ .name	    = "mmap",	    .hexret = true, },
 	{ .name	    = "connect",    .errmsg = true, },
 	{ .name	    = "fcntl",	    .errmsg = true,
 	  .arg_scnprintf = { [1] = SCA_STRARRAY, /* cmd */ },
-- 
cgit 


From 22ae5cf1c9b4e27a3efe96d8fa6d038560a2cf23 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Thu, 12 Sep 2013 11:27:34 -0300
Subject: perf trace: Don't print zeroed args

This way we make the output more compact.

If somebody complain (and provide a sane reason why we would like to see
zeroes) we can make it an optional, ~/.perfconfig configurable knob.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-myqozw43hk8z2r5hsupzdk82@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 903416c573af..516f6b39b4b6 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -818,6 +818,9 @@ static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size,
 			if (arg.mask & bit)
 				continue;
 
+			if (args[arg.idx] == 0)
+				continue;
+
 			printed += scnprintf(bf + printed, size - printed,
 					     "%s%s: ", printed ? ", " : "", field->name);
 			if (sc->arg_scnprintf && sc->arg_scnprintf[arg.idx]) {
-- 
cgit 


From b2cc99fdaad20b6e787f0864a1ac7b14391f9fe6 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Thu, 12 Sep 2013 11:54:48 -0300
Subject: perf trace: Beautify send/recv syscall 'flags' arg

 [root@sandy ~]# perf trace -a -e recvmmsg,recvmsg,recvfrom,sendto,sendmsg,sendmmsg
  6.901 (0.002 ms): 589 recvmsg(fd: 51, msg: 0x7fff35673420, flags: CMSG_CLOEXEC) = -1 EAGAIN Resource temporarily unavailable
  6.966 (0.008 ms): 589 sendmsg(fd: 50, msg: 0x7fff35673230, flags: NOSIGNAL    ) = 961
  6.984 (0.004 ms): 979 sendmsg(fd: 3, msg: 0x7fff5b484940, flags: NOSIGNAL     ) = 945

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-h25k5k50nac0ej5cl5iwgvae@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 67 +++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 66 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 516f6b39b4b6..c400fbee1fc7 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -319,6 +319,60 @@ static size_t syscall_arg__scnprintf_socket_type(char *bf, size_t size,
 
 #define SCA_SK_TYPE syscall_arg__scnprintf_socket_type
 
+#ifndef MSG_PROBE
+#define MSG_PROBE	     0x10
+#endif
+#ifndef MSG_SENDPAGE_NOTLAST
+#define MSG_SENDPAGE_NOTLAST 0x20000
+#endif
+#ifndef MSG_FASTOPEN
+#define MSG_FASTOPEN	     0x20000000
+#endif
+
+static size_t syscall_arg__scnprintf_msg_flags(char *bf, size_t size,
+					       struct syscall_arg *arg)
+{
+	int printed = 0, flags = arg->val;
+
+	if (flags == 0)
+		return scnprintf(bf, size, "NONE");
+#define	P_MSG_FLAG(n) \
+	if (flags & MSG_##n) { \
+		printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
+		flags &= ~MSG_##n; \
+	}
+
+	P_MSG_FLAG(OOB);
+	P_MSG_FLAG(PEEK);
+	P_MSG_FLAG(DONTROUTE);
+	P_MSG_FLAG(TRYHARD);
+	P_MSG_FLAG(CTRUNC);
+	P_MSG_FLAG(PROBE);
+	P_MSG_FLAG(TRUNC);
+	P_MSG_FLAG(DONTWAIT);
+	P_MSG_FLAG(EOR);
+	P_MSG_FLAG(WAITALL);
+	P_MSG_FLAG(FIN);
+	P_MSG_FLAG(SYN);
+	P_MSG_FLAG(CONFIRM);
+	P_MSG_FLAG(RST);
+	P_MSG_FLAG(ERRQUEUE);
+	P_MSG_FLAG(NOSIGNAL);
+	P_MSG_FLAG(MORE);
+	P_MSG_FLAG(WAITFORONE);
+	P_MSG_FLAG(SENDPAGE_NOTLAST);
+	P_MSG_FLAG(FASTOPEN);
+	P_MSG_FLAG(CMSG_CLOEXEC);
+#undef P_MSG_FLAG
+
+	if (flags)
+		printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
+
+	return printed;
+}
+
+#define SCA_MSG_FLAGS syscall_arg__scnprintf_msg_flags
+
 static size_t syscall_arg__scnprintf_access_mode(char *bf, size_t size,
 						 struct syscall_arg *arg)
 {
@@ -512,7 +566,12 @@ static struct syscall_fmt {
 	  .arg_parm	 = { [1] = &strarray__rlimit_resources, /* resource */ }, },
 	{ .name	    = "pwrite",	    .errmsg = true, .alias = "pwrite64", },
 	{ .name	    = "read",	    .errmsg = true, },
-	{ .name	    = "recvfrom",   .errmsg = true, },
+	{ .name	    = "recvfrom",   .errmsg = true,
+	  .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
+	{ .name	    = "recvmmsg",   .errmsg = true,
+	  .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
+	{ .name	    = "recvmsg",    .errmsg = true,
+	  .arg_scnprintf = { [2] = SCA_MSG_FLAGS, /* flags */ }, },
 	{ .name	    = "rt_sigaction", .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_SIGNUM, /* sig */ }, },
 	{ .name	    = "rt_sigprocmask", .errmsg = true,
@@ -523,6 +582,12 @@ static struct syscall_fmt {
 	{ .name	    = "rt_tgsigqueueinfo", .errmsg = true,
 	  .arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, },
 	{ .name	    = "select",	    .errmsg = true, .timeout = true, },
+	{ .name	    = "sendmmsg",    .errmsg = true,
+	  .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
+	{ .name	    = "sendmsg",    .errmsg = true,
+	  .arg_scnprintf = { [2] = SCA_MSG_FLAGS, /* flags */ }, },
+	{ .name	    = "sendto",	    .errmsg = true,
+	  .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
 	{ .name	    = "setitimer",  .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* which */ },
 	  .arg_parm	 = { [0] = &strarray__itimers, /* which */ }, },
-- 
cgit 


From 49af9e93adfa11d50435aa079299a765843532fc Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Thu, 12 Sep 2013 12:18:56 -0300
Subject: perf trace: Beautify eventfd2 'flags' arg

 61.168 ( 0.004 ms): 24267 eventfd2(flags: CLOEXEC|NONBLOCK) = 9

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-3hg8eajdzil077501c8f5jkw@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index c400fbee1fc7..8a09ba3dcd97 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -13,6 +13,7 @@
 
 #include <libaudit.h>
 #include <stdlib.h>
+#include <sys/eventfd.h>
 #include <sys/mman.h>
 #include <linux/futex.h>
 
@@ -456,6 +457,32 @@ static size_t syscall_arg__scnprintf_open_flags(char *bf, size_t size,
 
 #define SCA_OPEN_FLAGS syscall_arg__scnprintf_open_flags
 
+static size_t syscall_arg__scnprintf_eventfd_flags(char *bf, size_t size,
+						   struct syscall_arg *arg)
+{
+	int printed = 0, flags = arg->val;
+
+	if (flags == 0)
+		return scnprintf(bf, size, "NONE");
+#define	P_FLAG(n) \
+	if (flags & EFD_##n) { \
+		printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
+		flags &= ~EFD_##n; \
+	}
+
+	P_FLAG(SEMAPHORE);
+	P_FLAG(CLOEXEC);
+	P_FLAG(NONBLOCK);
+#undef P_FLAG
+
+	if (flags)
+		printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
+
+	return printed;
+}
+
+#define SCA_EFD_FLAGS syscall_arg__scnprintf_eventfd_flags
+
 static size_t syscall_arg__scnprintf_signum(char *bf, size_t size, struct syscall_arg *arg)
 {
 	int sig = arg->val;
@@ -516,6 +543,8 @@ static struct syscall_fmt {
 	{ .name	    = "brk",	    .hexret = true,
 	  .arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, },
 	{ .name	    = "connect",    .errmsg = true, },
+	{ .name	    = "eventfd2",   .errmsg = true,
+	  .arg_scnprintf = { [1] = SCA_EFD_FLAGS, /* flags */ }, },
 	{ .name	    = "fcntl",	    .errmsg = true,
 	  .arg_scnprintf = { [1] = SCA_STRARRAY, /* cmd */ },
 	  .arg_parm	 = { [1] = &strarray__fcntl_cmds, /* cmd */ }, },
-- 
cgit 


From 50c95cbd70808aa2e5ba8d79e503456f1da37aeb Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Thu, 12 Sep 2013 12:35:21 -0300
Subject: perf trace: Add option to show process COMM

Enabled by default, disable with --no-comm, e.g.:

 181.821 (0.001 ms): deja-dup-monit/10784 recvmsg(fd: 8, msg: 0x7fff4342baf0, flags: PEEK|TRUNC|CMSG_CLOEXEC ) = 20
 181.824 (0.001 ms): deja-dup-monit/10784 geteuid(                                                           ) = 1000
 181.825 (0.001 ms): deja-dup-monit/10784 getegid(                                                           ) = 1000
 181.834 (0.002 ms): deja-dup-monit/10784 recvmsg(fd: 8, msg: 0x7fff4342baf0, flags: CMSG_CLOEXEC            ) = 20
 181.836 (0.001 ms): deja-dup-monit/10784 geteuid(                                                           ) = 1000
 181.838 (0.001 ms): deja-dup-monit/10784 getegid(                                                           ) = 1000
 181.705 (0.003 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: PEEK|TRUNC|CMSG_CLOEXEC) = 1256
 181.710 (0.002 ms): evolution-addr/10924 geteuid(                                                           ) = 1000
 181.712 (0.001 ms): evolution-addr/10924 getegid(                                                           ) = 1000
 181.727 (0.003 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: CMSG_CLOEXEC           ) = 1256
 181.731 (0.001 ms): evolution-addr/10924 geteuid(                                                           ) = 1000
 181.734 (0.001 ms): evolution-addr/10924 getegid(                                                           ) = 1000
 181.908 (0.002 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: PEEK|TRUNC|CMSG_CLOEXEC) = 20
 181.913 (0.001 ms): evolution-addr/10924 geteuid(                                                           ) = 1000
 181.915 (0.001 ms): evolution-addr/10924 getegid(                                                           ) = 1000
 181.930 (0.003 ms): evolution-addr/10924 recvmsg(fd: 10, msg: 0x7fff17dc6990, flags: CMSG_CLOEXEC           ) = 20
 181.934 (0.001 ms): evolution-addr/10924 geteuid(                                                           ) = 1000
 181.937 (0.001 ms): evolution-addr/10924 getegid(                                                           ) = 1000
 220.718 (0.010 ms): at-spi2-regist/10715 sendmsg(fd: 3, msg: 0x7fffdb8756c0, flags: NOSIGNAL                ) = 200
 220.741 (0.000 ms): dbus-daemon/10711  ... [continued]: epoll_wait()) = 1
 220.759 (0.004 ms): dbus-daemon/10711 recvmsg(fd: 11, msg: 0x7ffff94594d0, flags: CMSG_CLOEXEC              ) = 200
 220.780 (0.002 ms): dbus-daemon/10711 recvmsg(fd: 11, msg: 0x7ffff94594d0, flags: CMSG_CLOEXEC              ) = 200
 220.788 (0.001 ms): dbus-daemon/10711 recvmsg(fd: 11, msg: 0x7ffff94594d0, flags: CMSG_CLOEXEC              ) = -1 EAGAIN Resource temporarily unavailable
 220.760 (0.004 ms): at-spi2-regist/10715 sendmsg(fd: 3, msg: 0x7fffdb8756c0, flags: NOSIGNAL                ) = 200
 220.771 (0.023 ms): perf/26347 open(filename: 0xf2e780, mode: 15918976                               ) = 19
 220.850 (0.002 ms): perf/26347 close(fd: 19                                                          ) = 0

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-6be5jvnkdzjptdrebfn5263n@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-trace.txt | 3 +++
 tools/perf/builtin-trace.c              | 9 ++++++++-
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt
index a93e91aad583..37773854d5c4 100644
--- a/tools/perf/Documentation/perf-trace.txt
+++ b/tools/perf/Documentation/perf-trace.txt
@@ -82,6 +82,9 @@ the thread executes on the designated CPUs. Default is to monitor all CPUs.
 --time
 	Print full timestamp rather time relative to first sample.
 
+--comm::
+        Show process COMM right beside its ID, on by default, disable with --no-comm.
+
 SEE ALSO
 --------
 linkperf:perf-record[1], linkperf:perf-script[1]
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 8a09ba3dcd97..be658433d3bb 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -726,6 +726,7 @@ struct trace {
 	struct intlist		*pid_list;
 	bool			sched;
 	bool			multiple_threads;
+	bool			show_comm;
 	double			duration_filter;
 	double			runtime_ms;
 };
@@ -755,8 +756,11 @@ static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thre
 	size_t printed = trace__fprintf_tstamp(trace, tstamp, fp);
 	printed += fprintf_duration(duration, fp);
 
-	if (trace->multiple_threads)
+	if (trace->multiple_threads) {
+		if (trace->show_comm)
+			printed += fprintf(fp, "%.14s/", thread->comm);
 		printed += fprintf(fp, "%d ", thread->tid);
+	}
 
 	return printed;
 }
@@ -1503,10 +1507,13 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
 			.mmap_pages    = 1024,
 		},
 		.output = stdout,
+		.show_comm = true,
 	};
 	const char *output_name = NULL;
 	const char *ev_qualifier_str = NULL;
 	const struct option trace_options[] = {
+	OPT_BOOLEAN(0, "comm", &trace.show_comm,
+		    "show the thread COMM next to its id"),
 	OPT_STRING('e', "expr", &ev_qualifier_str, "expr",
 		    "list of events to trace"),
 	OPT_STRING('o', "output", &output_name, "file", "output file name"),
-- 
cgit 


From 1ba6e01782fd2a94481e18b91b363636f8171565 Mon Sep 17 00:00:00 2001
From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Thu, 4 Jul 2013 18:11:25 +0530
Subject: perf completion: Don't dictate perf install location

The statement

  have perf

limits the locations in which to look for the perf program.  Moreover,
it depends on the bash-completion package to be installed.  Replace it
with a call to `type perf`.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/1372941691-14684-2-git-send-email-artagnon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/bash_completion | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/bash_completion b/tools/perf/bash_completion
index 56e6a12aab59..50540cfe3d18 100644
--- a/tools/perf/bash_completion
+++ b/tools/perf/bash_completion
@@ -19,7 +19,7 @@ __ltrim_colon_completions()
 	fi
 }
 
-have perf &&
+type perf &>/dev/null &&
 _perf()
 {
 	local cur prev cmd
-- 
cgit 


From 30079d1d5ebcb8d706c6e05cacebb7facc60cd95 Mon Sep 17 00:00:00 2001
From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Thu, 4 Jul 2013 18:11:26 +0530
Subject: perf completion: Update __ltrim_colon_completions

The function is taken from the bash-completion package; update it to use
the latest version where colon_word doesn't miss quoting.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/1372941691-14684-3-git-send-email-artagnon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/bash_completion | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/bash_completion b/tools/perf/bash_completion
index 50540cfe3d18..b0cdd12bd5e4 100644
--- a/tools/perf/bash_completion
+++ b/tools/perf/bash_completion
@@ -11,7 +11,7 @@ __ltrim_colon_completions()
 {
 	if [[ "$1" == *:* && "$COMP_WORDBREAKS" == *:* ]]; then
 		# Remove colon-word prefix from COMPREPLY items
-		local colon_word=${1%${1##*:}}
+		local colon_word=${1%"${1##*:}"}
 		local i=${#COMPREPLY[*]}
 		while [[ $((--i)) -ge 0 ]]; do
 			COMPREPLY[$i]=${COMPREPLY[$i]#"$colon_word"}
-- 
cgit 


From 7b6c48e16e5d312b0ebae78acfb3ff4f9c8c083c Mon Sep 17 00:00:00 2001
From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Thu, 4 Jul 2013 18:11:27 +0530
Subject: perf completion: Strip dependency on _filedir

_filedir is defined in the bash-completion package, but there is no need
to depend on it.  Instead, call complete with multiple -o arguments
before the -F argument like in git.git's completion script.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/1372941691-14684-4-git-send-email-artagnon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/bash_completion | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/tools/perf/bash_completion b/tools/perf/bash_completion
index b0cdd12bd5e4..d2598be517fb 100644
--- a/tools/perf/bash_completion
+++ b/tools/perf/bash_completion
@@ -54,9 +54,8 @@ _perf()
 		subcmd=${COMP_WORDS[1]}
 		opts=$($cmd $subcmd --list-opts)
 		COMPREPLY=( $( compgen -W '$opts' -- "$cur" ) )
-	# Fall down to list regular files
-	else
-		_filedir
 	fi
 } &&
-complete -F _perf perf
+
+complete -o bashdefault -o default -o nospace -F _perf perf 2>/dev/null \
+	|| complete -o default -o nospace -F _perf perf
-- 
cgit 


From 4685a6cfaeac6d2fe8ed10a9aa0cbff5026529cb Mon Sep 17 00:00:00 2001
From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Thu, 4 Jul 2013 18:11:29 +0530
Subject: perf completion: Strip function_exists ()

Use "type" to check existence consistently.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/1372941691-14684-6-git-send-email-artagnon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/bash_completion | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/tools/perf/bash_completion b/tools/perf/bash_completion
index d2598be517fb..35fdda1540d8 100644
--- a/tools/perf/bash_completion
+++ b/tools/perf/bash_completion
@@ -1,12 +1,6 @@
 # perf completion
 
-function_exists()
-{
-	declare -F $1 > /dev/null
-	return $?
-}
-
-function_exists __ltrim_colon_completions ||
+type __ltrim_colon_completions &>/dev/null ||
 __ltrim_colon_completions()
 {
 	if [[ "$1" == *:* && "$COMP_WORDBREAKS" == *:* ]]; then
-- 
cgit 


From c3fb6717e90049b93d0f5f5714a4d878799d89c2 Mon Sep 17 00:00:00 2001
From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Thu, 4 Jul 2013 18:11:30 +0530
Subject: perf completion: Strip dependency on bash-completion

The bash-completion package defines the _get_comp_words_by_ref function.
There is no need to depend on it, as we can reimplement it like git.git
has.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Link: http://lkml.kernel.org/r/1372941691-14684-7-git-send-email-artagnon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/bash_completion | 83 ++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 77 insertions(+), 6 deletions(-)

diff --git a/tools/perf/bash_completion b/tools/perf/bash_completion
index 35fdda1540d8..ee9c6d85f2c9 100644
--- a/tools/perf/bash_completion
+++ b/tools/perf/bash_completion
@@ -1,5 +1,81 @@
 # perf completion
 
+# Taken from git.git's completion script.
+__my_reassemble_comp_words_by_ref()
+{
+	local exclude i j first
+	# Which word separators to exclude?
+	exclude="${1//[^$COMP_WORDBREAKS]}"
+	cword_=$COMP_CWORD
+	if [ -z "$exclude" ]; then
+		words_=("${COMP_WORDS[@]}")
+		return
+	fi
+	# List of word completion separators has shrunk;
+	# re-assemble words to complete.
+	for ((i=0, j=0; i < ${#COMP_WORDS[@]}; i++, j++)); do
+		# Append each nonempty word consisting of just
+		# word separator characters to the current word.
+		first=t
+		while
+			[ $i -gt 0 ] &&
+			[ -n "${COMP_WORDS[$i]}" ] &&
+			# word consists of excluded word separators
+			[ "${COMP_WORDS[$i]//[^$exclude]}" = "${COMP_WORDS[$i]}" ]
+		do
+			# Attach to the previous token,
+			# unless the previous token is the command name.
+			if [ $j -ge 2 ] && [ -n "$first" ]; then
+				((j--))
+			fi
+			first=
+			words_[$j]=${words_[j]}${COMP_WORDS[i]}
+			if [ $i = $COMP_CWORD ]; then
+				cword_=$j
+			fi
+			if (($i < ${#COMP_WORDS[@]} - 1)); then
+				((i++))
+			else
+				# Done.
+				return
+			fi
+		done
+		words_[$j]=${words_[j]}${COMP_WORDS[i]}
+		if [ $i = $COMP_CWORD ]; then
+			cword_=$j
+		fi
+	done
+}
+
+type _get_comp_words_by_ref &>/dev/null ||
+_get_comp_words_by_ref()
+{
+	local exclude cur_ words_ cword_
+	if [ "$1" = "-n" ]; then
+		exclude=$2
+		shift 2
+	fi
+	__my_reassemble_comp_words_by_ref "$exclude"
+	cur_=${words_[cword_]}
+	while [ $# -gt 0 ]; do
+		case "$1" in
+		cur)
+			cur=$cur_
+			;;
+		prev)
+			prev=${words_[$cword_-1]}
+			;;
+		words)
+			words=("${words_[@]}")
+			;;
+		cword)
+			cword=$cword_
+			;;
+		esac
+		shift
+	done
+}
+
 type __ltrim_colon_completions &>/dev/null ||
 __ltrim_colon_completions()
 {
@@ -19,12 +95,7 @@ _perf()
 	local cur prev cmd
 
 	COMPREPLY=()
-	if function_exists _get_comp_words_by_ref; then
-		_get_comp_words_by_ref -n : cur prev
-	else
-		cur=$(_get_cword :)
-		prev=${COMP_WORDS[COMP_CWORD-1]}
-	fi
+	_get_comp_words_by_ref -n : cur prev
 
 	cmd=${COMP_WORDS[0]}
 
-- 
cgit 


From 6e0dc374a2c912a8a967ea8a4f9696dd4b0a6d3e Mon Sep 17 00:00:00 2001
From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Thu, 4 Jul 2013 18:11:31 +0530
Subject: perf completion: Use more comp words

The completion words $words and $cword are available, so we might as
well use them instead of directly accessing COMP_WORDS.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/1372941691-14684-8-git-send-email-artagnon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/bash_completion | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/tools/perf/bash_completion b/tools/perf/bash_completion
index ee9c6d85f2c9..62e157db2e2b 100644
--- a/tools/perf/bash_completion
+++ b/tools/perf/bash_completion
@@ -92,15 +92,15 @@ __ltrim_colon_completions()
 type perf &>/dev/null &&
 _perf()
 {
-	local cur prev cmd
+	local cur words cword prev cmd
 
 	COMPREPLY=()
-	_get_comp_words_by_ref -n : cur prev
+	_get_comp_words_by_ref -n =: cur words cword prev
 
-	cmd=${COMP_WORDS[0]}
+	cmd=${words[0]}
 
 	# List perf subcommands or long options
-	if [ $COMP_CWORD -eq 1 ]; then
+	if [ $cword -eq 1 ]; then
 		if [[ $cur == --* ]]; then
 			COMPREPLY=( $( compgen -W '--help --version \
 			--exec-path --html-path --paginate --no-pager \
@@ -110,13 +110,13 @@ _perf()
 			COMPREPLY=( $( compgen -W '$cmds' -- "$cur" ) )
 		fi
 	# List possible events for -e option
-	elif [[ $prev == "-e" && "${COMP_WORDS[1]}" == @(record|stat|top) ]]; then
+	elif [[ $prev == "-e" && "${words[1]}" == @(record|stat|top) ]]; then
 		evts=$($cmd list --raw-dump)
 		COMPREPLY=( $( compgen -W '$evts' -- "$cur" ) )
 		__ltrim_colon_completions $cur
 	# List long option names
 	elif [[ $cur == --* ]];  then
-		subcmd=${COMP_WORDS[1]}
+		subcmd=${words[1]}
 		opts=$($cmd $subcmd --list-opts)
 		COMPREPLY=( $( compgen -W '$opts' -- "$cur" ) )
 	fi
-- 
cgit 


From 9cd00941f8c274e6ca03ed238d96ddb0be474b86 Mon Sep 17 00:00:00 2001
From: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Date: Wed, 18 Sep 2013 15:56:14 +0200
Subject: perf symbols: Support for Openembedded/Yocto -dbg packages

On OpenEmbedded the symbol files are located under a .debug folder on
the same folder as the binary file.

This patch adds support for such files.

Without this patch on perf top you can see:

no symbols found in /usr/lib/gstreamer-1.0/libtheoraenc.so.1.1.2, maybe
install a debug package?

84.56%  libtheoraenc.so.1.1.2       [.] 0x000000000000b346

With this patch symbols are shown:

19.06%  libtheoraenc.so.1.1.2       [.] oc_int_frag_satd_thresh_mmxext
9.76%   libtheoraenc.so.1.1.2       [.] oc_analyze_mb_mode_luma
5.58%   libtheoraenc.so.1.1.2       [.] oc_qii_state_advance
4.84%   libtheoraenc.so.1.1.2       [.] oc_enc_tokenize_ac
...

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Waiman Long <Waiman.Long@hp.com>
Link: http://lkml.kernel.org/r/1379512574-25912-1-git-send-email-ricardo.ribalda@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/dso.c    | 49 +++++++++++++++++++++++++++++++++++-------------
 tools/perf/util/dso.h    |  1 +
 tools/perf/util/symbol.c |  1 +
 3 files changed, 38 insertions(+), 13 deletions(-)

diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index e3c1ff8512c8..6bfc8aacaf7c 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -7,19 +7,20 @@
 char dso__symtab_origin(const struct dso *dso)
 {
 	static const char origin[] = {
-		[DSO_BINARY_TYPE__KALLSYMS]		= 'k',
-		[DSO_BINARY_TYPE__VMLINUX]		= 'v',
-		[DSO_BINARY_TYPE__JAVA_JIT]		= 'j',
-		[DSO_BINARY_TYPE__DEBUGLINK]		= 'l',
-		[DSO_BINARY_TYPE__BUILD_ID_CACHE]	= 'B',
-		[DSO_BINARY_TYPE__FEDORA_DEBUGINFO]	= 'f',
-		[DSO_BINARY_TYPE__UBUNTU_DEBUGINFO]	= 'u',
-		[DSO_BINARY_TYPE__BUILDID_DEBUGINFO]	= 'b',
-		[DSO_BINARY_TYPE__SYSTEM_PATH_DSO]	= 'd',
-		[DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE]	= 'K',
-		[DSO_BINARY_TYPE__GUEST_KALLSYMS]	= 'g',
-		[DSO_BINARY_TYPE__GUEST_KMODULE]	= 'G',
-		[DSO_BINARY_TYPE__GUEST_VMLINUX]	= 'V',
+		[DSO_BINARY_TYPE__KALLSYMS]			= 'k',
+		[DSO_BINARY_TYPE__VMLINUX]			= 'v',
+		[DSO_BINARY_TYPE__JAVA_JIT]			= 'j',
+		[DSO_BINARY_TYPE__DEBUGLINK]			= 'l',
+		[DSO_BINARY_TYPE__BUILD_ID_CACHE]		= 'B',
+		[DSO_BINARY_TYPE__FEDORA_DEBUGINFO]		= 'f',
+		[DSO_BINARY_TYPE__UBUNTU_DEBUGINFO]		= 'u',
+		[DSO_BINARY_TYPE__OPENEMBEDDED_DEBUGINFO]	= 'o',
+		[DSO_BINARY_TYPE__BUILDID_DEBUGINFO]		= 'b',
+		[DSO_BINARY_TYPE__SYSTEM_PATH_DSO]		= 'd',
+		[DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE]		= 'K',
+		[DSO_BINARY_TYPE__GUEST_KALLSYMS]		= 'g',
+		[DSO_BINARY_TYPE__GUEST_KMODULE]		= 'G',
+		[DSO_BINARY_TYPE__GUEST_VMLINUX]		= 'V',
 	};
 
 	if (dso == NULL || dso->symtab_type == DSO_BINARY_TYPE__NOT_FOUND)
@@ -64,6 +65,28 @@ int dso__binary_type_file(struct dso *dso, enum dso_binary_type type,
 			 symbol_conf.symfs, dso->long_name);
 		break;
 
+	case DSO_BINARY_TYPE__OPENEMBEDDED_DEBUGINFO:
+	{
+		char *last_slash;
+		size_t len;
+		size_t dir_size;
+
+		last_slash = dso->long_name + dso->long_name_len;
+		while (last_slash != dso->long_name && *last_slash != '/')
+			last_slash--;
+
+		len = scnprintf(file, size, "%s", symbol_conf.symfs);
+		dir_size = last_slash - dso->long_name + 2;
+		if (dir_size > (size - len)) {
+			ret = -1;
+			break;
+		}
+		len += scnprintf(file + len, dir_size, "%s",  dso->long_name);
+		len += scnprintf(file + len , size - len, ".debug%s",
+								last_slash);
+		break;
+	}
+
 	case DSO_BINARY_TYPE__BUILDID_DEBUGINFO:
 		if (!dso->has_build_id) {
 			ret = -1;
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index b793053335d6..dbd9241ea290 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -23,6 +23,7 @@ enum dso_binary_type {
 	DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE,
 	DSO_BINARY_TYPE__KCORE,
 	DSO_BINARY_TYPE__GUEST_KCORE,
+	DSO_BINARY_TYPE__OPENEMBEDDED_DEBUGINFO,
 	DSO_BINARY_TYPE__NOT_FOUND,
 };
 
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 7eb0362f4ffd..cd1dcc45049b 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -51,6 +51,7 @@ static enum dso_binary_type binary_type_symtab[] = {
 	DSO_BINARY_TYPE__SYSTEM_PATH_DSO,
 	DSO_BINARY_TYPE__GUEST_KMODULE,
 	DSO_BINARY_TYPE__SYSTEM_PATH_KMODULE,
+	DSO_BINARY_TYPE__OPENEMBEDDED_DEBUGINFO,
 	DSO_BINARY_TYPE__NOT_FOUND,
 };
 
-- 
cgit 


From 60631c5c10efbf24a77e1ca1ddecdb4e82ed2833 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Tue, 8 Oct 2013 21:45:25 +0300
Subject: ath10k: fix ath10k_debug_start() locking

ath10k_debug_start() was not called with conf_mutex, fix that. Also there was a
deadlock in ath10k_debug_stop(), rename it to ath10k_debug_destroy() and call
it only when the device is destroyed.

Reported-by: Mohammed Shafi Shajakhan <mohammed@qca.qualcomm.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.c  | 12 ++++++++++++
 drivers/net/wireless/ath/ath10k/debug.c | 15 ++++++++++++++-
 drivers/net/wireless/ath/ath10k/debug.h |  5 +++++
 3 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 5acb4048b008..e016f5141c66 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -737,6 +737,8 @@ EXPORT_SYMBOL(ath10k_core_create);
 
 void ath10k_core_destroy(struct ath10k *ar)
 {
+	ath10k_debug_destroy(ar);
+
 	flush_workqueue(ar->workqueue);
 	destroy_workqueue(ar->workqueue);
 
@@ -748,6 +750,8 @@ int ath10k_core_start(struct ath10k *ar)
 {
 	int status;
 
+	lockdep_assert_held(&ar->conf_mutex);
+
 	ath10k_bmi_start(ar);
 
 	if (ath10k_init_configure_target(ar)) {
@@ -836,6 +840,8 @@ EXPORT_SYMBOL(ath10k_core_start);
 
 void ath10k_core_stop(struct ath10k *ar)
 {
+	lockdep_assert_held(&ar->conf_mutex);
+
 	ath10k_debug_stop(ar);
 	ath10k_htc_stop(&ar->htc);
 	ath10k_htt_detach(&ar->htt);
@@ -883,15 +889,21 @@ static int ath10k_core_probe_fw(struct ath10k *ar)
 		return ret;
 	}
 
+	mutex_lock(&ar->conf_mutex);
+
 	ret = ath10k_core_start(ar);
 	if (ret) {
 		ath10k_err("could not init core (%d)\n", ret);
 		ath10k_core_free_firmware_files(ar);
 		ath10k_hif_power_down(ar);
+		mutex_unlock(&ar->conf_mutex);
 		return ret;
 	}
 
 	ath10k_core_stop(ar);
+
+	mutex_unlock(&ar->conf_mutex);
+
 	ath10k_hif_power_down(ar);
 	return 0;
 }
diff --git a/drivers/net/wireless/ath/ath10k/debug.c b/drivers/net/wireless/ath/ath10k/debug.c
index 59615c7f217e..760ff2289e3c 100644
--- a/drivers/net/wireless/ath/ath10k/debug.c
+++ b/drivers/net/wireless/ath/ath10k/debug.c
@@ -618,6 +618,8 @@ int ath10k_debug_start(struct ath10k *ar)
 {
 	int ret;
 
+	lockdep_assert_held(&ar->conf_mutex);
+
 	ret = ath10k_debug_htt_stats_req(ar);
 	if (ret)
 		/* continue normally anyway, this isn't serious */
@@ -628,7 +630,13 @@ int ath10k_debug_start(struct ath10k *ar)
 
 void ath10k_debug_stop(struct ath10k *ar)
 {
-	cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
+	lockdep_assert_held(&ar->conf_mutex);
+
+	/* Must not use _sync to avoid deadlock, we do that in
+	 * ath10k_debug_destroy(). The check for htt_stats_mask is to avoid
+	 * warning from del_timer(). */
+	if (ar->debug.htt_stats_mask != 0)
+		cancel_delayed_work(&ar->debug.htt_stats_dwork);
 }
 
 int ath10k_debug_create(struct ath10k *ar)
@@ -662,6 +670,11 @@ int ath10k_debug_create(struct ath10k *ar)
 	return 0;
 }
 
+void ath10k_debug_destroy(struct ath10k *ar)
+{
+	cancel_delayed_work_sync(&ar->debug.htt_stats_dwork);
+}
+
 #endif /* CONFIG_ATH10K_DEBUGFS */
 
 #ifdef CONFIG_ATH10K_DEBUG
diff --git a/drivers/net/wireless/ath/ath10k/debug.h b/drivers/net/wireless/ath/ath10k/debug.h
index fa581486626f..46e640a6968d 100644
--- a/drivers/net/wireless/ath/ath10k/debug.h
+++ b/drivers/net/wireless/ath/ath10k/debug.h
@@ -46,6 +46,7 @@ extern __printf(1, 2) int ath10k_warn(const char *fmt, ...);
 int ath10k_debug_start(struct ath10k *ar);
 void ath10k_debug_stop(struct ath10k *ar);
 int ath10k_debug_create(struct ath10k *ar);
+void ath10k_debug_destroy(struct ath10k *ar);
 void ath10k_debug_read_service_map(struct ath10k *ar,
 				   void *service_map,
 				   size_t map_size);
@@ -67,6 +68,10 @@ static inline int ath10k_debug_create(struct ath10k *ar)
 	return 0;
 }
 
+static inline void ath10k_debug_destroy(struct ath10k *ar)
+{
+}
+
 static inline void ath10k_debug_read_service_map(struct ath10k *ar,
 						 void *service_map,
 						 size_t map_size)
-- 
cgit 


From 5283ec23a02e8afdc984c7f5f07e2a2662d4934a Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Thu, 12 Sep 2013 18:39:34 +0200
Subject: perf tools: Remove unused trace-event-* code

Removing unused trace-event-* code.

Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1379003976-5839-3-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/trace-event-parse.c | 36 ------------------------------------
 tools/perf/util/trace-event.h       |  9 ---------
 2 files changed, 45 deletions(-)

diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index e9e1c03f927d..6681f71f2f95 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -120,42 +120,6 @@ raw_field_value(struct event_format *event, const char *name, void *data)
 	return val;
 }
 
-void *raw_field_ptr(struct event_format *event, const char *name, void *data)
-{
-	struct format_field *field;
-
-	field = pevent_find_any_field(event, name);
-	if (!field)
-		return NULL;
-
-	if (field->flags & FIELD_IS_DYNAMIC) {
-		int offset;
-
-		offset = *(int *)(data + field->offset);
-		offset &= 0xffff;
-
-		return data + offset;
-	}
-
-	return data + field->offset;
-}
-
-int trace_parse_common_type(struct pevent *pevent, void *data)
-{
-	struct pevent_record record;
-
-	record.data = data;
-	return pevent_data_type(pevent, &record);
-}
-
-int trace_parse_common_pid(struct pevent *pevent, void *data)
-{
-	struct pevent_record record;
-
-	record.data = data;
-	return pevent_data_pid(pevent, &record);
-}
-
 unsigned long long read_size(struct event_format *event, void *ptr, int size)
 {
 	return pevent_read_number(event->pevent, ptr, size);
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index fafe1a40444a..04df63114109 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -11,8 +11,6 @@ union perf_event;
 struct perf_tool;
 struct thread;
 
-extern struct pevent *perf_pevent;
-
 int bigendian(void);
 
 struct pevent *read_trace_init(int file_bigendian, int host_bigendian);
@@ -23,26 +21,19 @@ int parse_ftrace_file(struct pevent *pevent, char *buf, unsigned long size);
 int parse_event_file(struct pevent *pevent,
 		     char *buf, unsigned long size, char *sys);
 
-struct pevent_record *trace_peek_data(struct pevent *pevent, int cpu);
-
 unsigned long long
 raw_field_value(struct event_format *event, const char *name, void *data);
-void *raw_field_ptr(struct event_format *event, const char *name, void *data);
 
 void parse_proc_kallsyms(struct pevent *pevent, char *file, unsigned int size);
 void parse_ftrace_printk(struct pevent *pevent, char *file, unsigned int size);
 
 ssize_t trace_report(int fd, struct pevent **pevent, bool repipe);
 
-int trace_parse_common_type(struct pevent *pevent, void *data);
-int trace_parse_common_pid(struct pevent *pevent, void *data);
-
 struct event_format *trace_find_next_event(struct pevent *pevent,
 					   struct event_format *event);
 unsigned long long read_size(struct event_format *event, void *ptr, int size);
 unsigned long long eval_flag(const char *flag);
 
-struct pevent_record *trace_read_data(struct pevent *pevent, int cpu);
 int read_tracing_data(int fd, struct list_head *pattrs);
 
 struct tracing_data {
-- 
cgit 


From e05634ee6c267a0417f72050c378033baca0687a Mon Sep 17 00:00:00 2001
From: Fengguang Wu <fengguang.wu@intel.com>
Date: Tue, 8 Oct 2013 21:48:15 +0300
Subject: ath10k: remove unneded semicolon from
 ath10k_core_fetch_firmware_api_n()

drivers/net/wireless/ath/ath10k/core.c:507:2-3: Unneeded semicolon

 Removes unneeded semicolon.

Generated by: coccinelle/misc/semicolon.cocci

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index e016f5141c66..c5561a935bbb 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -507,7 +507,7 @@ static int ath10k_core_fetch_firmware_api_n(struct ath10k *ar, const char *name)
 
 		len -= ie_len;
 		data += ie_len;
-	};
+	}
 
 	if (!ar->firmware_data || !ar->firmware_len) {
 		ath10k_warn("No ATH10K_FW_IE_FW_IMAGE found from %s, skipping\n",
-- 
cgit 


From 918512b435e15fefe609d236e0ecd62cb8f389c9 Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Thu, 12 Sep 2013 18:39:35 +0200
Subject: perf tools: Unify page_size usage

Making page_size global from the util object.

Removing the not needed one.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1379003976-5839-4-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-record.c | 5 +----
 tools/perf/perf.c           | 1 +
 tools/perf/util/python.c    | 1 +
 3 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index cf36ba2a1591..0aacd6295fe6 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -70,7 +70,6 @@ struct perf_record {
 	struct perf_session	*session;
 	const char		*progname;
 	int			output;
-	unsigned int		page_size;
 	int			realtime_prio;
 	bool			no_buildid;
 	bool			no_buildid_cache;
@@ -119,7 +118,7 @@ static int perf_record__mmap_read(struct perf_record *rec,
 {
 	unsigned int head = perf_mmap__read_head(md);
 	unsigned int old = md->prev;
-	unsigned char *data = md->base + rec->page_size;
+	unsigned char *data = md->base + page_size;
 	unsigned long size;
 	void *buf;
 	int rc = 0;
@@ -360,8 +359,6 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 
 	rec->progname = argv[0];
 
-	rec->page_size = sysconf(_SC_PAGE_SIZE);
-
 	on_exit(perf_record__sig_exit, rec);
 	signal(SIGCHLD, sig_handler);
 	signal(SIGINT, sig_handler);
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index 245020cc6180..626577830264 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -456,6 +456,7 @@ int main(int argc, const char **argv)
 {
 	const char *cmd;
 
+	/* The page_size is placed in util object. */
 	page_size = sysconf(_SC_PAGE_SIZE);
 
 	cmd = perf_extract_argv0_path(argv[0]);
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 71b5412bbbb9..a24ce0a6a941 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -1036,6 +1036,7 @@ PyMODINIT_FUNC initperf(void)
 	    pyrf_cpu_map__setup_types() < 0)
 		return;
 
+	/* The page_size is placed in util object. */
 	page_size = sysconf(_SC_PAGE_SIZE);
 
 	Py_INCREF(&pyrf_evlist__type);
-- 
cgit 


From 02ad0702e54f9b82b697718e7e8662eb3f2266ee Mon Sep 17 00:00:00 2001
From: Davidlohr Bueso <davidlohr@hp.com>
Date: Sun, 8 Sep 2013 19:19:13 -0700
Subject: perf lock: Remove dead code

No need for break statements after goto jumps.

Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: Aswin Chandramouleeswaran <aswin@hp.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1378693159-8747-2-git-send-email-davidlohr@hp.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-lock.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index ee33ba2f05dd..148f7e28ade7 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -446,7 +446,6 @@ broken:
 		list_del(&seq->list);
 		free(seq);
 		goto end;
-		break;
 	default:
 		BUG_ON("Unknown state of lock sequence found!\n");
 		break;
@@ -508,8 +507,6 @@ static int report_lock_acquired_event(struct perf_evsel *evsel,
 		list_del(&seq->list);
 		free(seq);
 		goto end;
-		break;
-
 	default:
 		BUG_ON("Unknown state of lock sequence found!\n");
 		break;
@@ -564,7 +561,6 @@ static int report_lock_contended_event(struct perf_evsel *evsel,
 		list_del(&seq->list);
 		free(seq);
 		goto end;
-		break;
 	default:
 		BUG_ON("Unknown state of lock sequence found!\n");
 		break;
@@ -606,7 +602,6 @@ static int report_lock_release_event(struct perf_evsel *evsel,
 	switch (seq->state) {
 	case SEQ_STATE_UNINITIALIZED:
 		goto end;
-		break;
 	case SEQ_STATE_ACQUIRED:
 		break;
 	case SEQ_STATE_READ_ACQUIRED:
@@ -624,7 +619,6 @@ static int report_lock_release_event(struct perf_evsel *evsel,
 		ls->discard = 1;
 		bad_hist[BROKEN_RELEASE]++;
 		goto free_seq;
-		break;
 	default:
 		BUG_ON("Unknown state of lock sequence found!\n");
 		break;
-- 
cgit 


From b33492ade49a223a666e582d0c63566609e7014b Mon Sep 17 00:00:00 2001
From: Davidlohr Bueso <davidlohr@hp.com>
Date: Sun, 8 Sep 2013 19:19:14 -0700
Subject: perf lock: Return proper code in report_lock_*_event

The report_lock_*_event() functions return -1 when lock_stat_findnew(),
thread_stat_findnew() or get_seq() return NULL. These functions only
return this value when failing to allocate memory, this return -ENOMEM
instead.

Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: Aswin Chandramouleeswaran <aswin@hp.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1378693159-8747-3-git-send-email-davidlohr@hp.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-lock.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 148f7e28ade7..d3188629cbaf 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -400,17 +400,17 @@ static int report_lock_acquire_event(struct perf_evsel *evsel,
 
 	ls = lock_stat_findnew(addr, name);
 	if (!ls)
-		return -1;
+		return -ENOMEM;
 	if (ls->discard)
 		return 0;
 
 	ts = thread_stat_findnew(sample->tid);
 	if (!ts)
-		return -1;
+		return -ENOMEM;
 
 	seq = get_seq(ts, addr);
 	if (!seq)
-		return -1;
+		return -ENOMEM;
 
 	switch (seq->state) {
 	case SEQ_STATE_UNINITIALIZED:
@@ -472,17 +472,17 @@ static int report_lock_acquired_event(struct perf_evsel *evsel,
 
 	ls = lock_stat_findnew(addr, name);
 	if (!ls)
-		return -1;
+		return -ENOMEM;
 	if (ls->discard)
 		return 0;
 
 	ts = thread_stat_findnew(sample->tid);
 	if (!ts)
-		return -1;
+		return -ENOMEM;
 
 	seq = get_seq(ts, addr);
 	if (!seq)
-		return -1;
+		return -ENOMEM;
 
 	switch (seq->state) {
 	case SEQ_STATE_UNINITIALIZED:
@@ -533,17 +533,17 @@ static int report_lock_contended_event(struct perf_evsel *evsel,
 
 	ls = lock_stat_findnew(addr, name);
 	if (!ls)
-		return -1;
+		return -ENOMEM;
 	if (ls->discard)
 		return 0;
 
 	ts = thread_stat_findnew(sample->tid);
 	if (!ts)
-		return -1;
+		return -ENOMEM;
 
 	seq = get_seq(ts, addr);
 	if (!seq)
-		return -1;
+		return -ENOMEM;
 
 	switch (seq->state) {
 	case SEQ_STATE_UNINITIALIZED:
@@ -587,17 +587,17 @@ static int report_lock_release_event(struct perf_evsel *evsel,
 
 	ls = lock_stat_findnew(addr, name);
 	if (!ls)
-		return -1;
+		return -ENOMEM;
 	if (ls->discard)
 		return 0;
 
 	ts = thread_stat_findnew(sample->tid);
 	if (!ts)
-		return -1;
+		return -ENOMEM;
 
 	seq = get_seq(ts, addr);
 	if (!seq)
-		return -1;
+		return -ENOMEM;
 
 	switch (seq->state) {
 	case SEQ_STATE_UNINITIALIZED:
-- 
cgit 


From 0a98c7febf55325ebac4f28289a9433f4b66ed0e Mon Sep 17 00:00:00 2001
From: Davidlohr Bueso <davidlohr@hp.com>
Date: Sun, 8 Sep 2013 19:19:15 -0700
Subject: perf lock: Plug some memleaks

Address some trivial leaks.

Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: Aswin Chandramouleeswaran <aswin@hp.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1378693159-8747-4-git-send-email-davidlohr@hp.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-lock.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index d3188629cbaf..77843478a27a 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -321,10 +321,12 @@ static struct lock_stat *lock_stat_findnew(void *addr, const char *name)
 
 	new->addr = addr;
 	new->name = zalloc(sizeof(char) * strlen(name) + 1);
-	if (!new->name)
+	if (!new->name) {
+		free(new);
 		goto alloc_failed;
-	strcpy(new->name, name);
+	}
 
+	strcpy(new->name, name);
 	new->wait_time_min = ULLONG_MAX;
 
 	list_add(&new->hash_entry, entry);
@@ -875,7 +877,7 @@ static int __cmd_record(int argc, const char **argv)
 	const char *record_args[] = {
 		"record", "-R", "-m", "1024", "-c", "1",
 	};
-	unsigned int rec_argc, i, j;
+	unsigned int rec_argc, i, j, ret;
 	const char **rec_argv;
 
 	for (i = 0; i < ARRAY_SIZE(lock_tracepoints); i++) {
@@ -892,7 +894,7 @@ static int __cmd_record(int argc, const char **argv)
 	rec_argc += 2 * ARRAY_SIZE(lock_tracepoints);
 
 	rec_argv = calloc(rec_argc + 1, sizeof(char *));
-	if (rec_argv == NULL)
+	if (!rec_argv)
 		return -ENOMEM;
 
 	for (i = 0; i < ARRAY_SIZE(record_args); i++)
@@ -908,7 +910,9 @@ static int __cmd_record(int argc, const char **argv)
 
 	BUG_ON(i != rec_argc);
 
-	return cmd_record(i, rec_argv, NULL);
+	ret = cmd_record(i, rec_argv, NULL);
+	free(rec_argv);
+	return ret;
 }
 
 int cmd_lock(int argc, const char **argv, const char *prefix __maybe_unused)
-- 
cgit 


From 375eb2be5584b8182a917124ca217b74e43d2dc4 Mon Sep 17 00:00:00 2001
From: Davidlohr Bueso <davidlohr@hp.com>
Date: Sun, 8 Sep 2013 19:19:16 -0700
Subject: perf lock: Redo __cmd_report

This function should be straightforward, and we can remove some trivial
logic by moving the functionality of read_events() into __cmd_report() -
thus allowing a new session to be properly deleted.

Since the 'info' subcommand also needs to process the recorded events,
add a 'display_info' flag to differentiate between report and info
commands.

Furthermore, this patch also calls perf_session__has_traces(), making
sure that we don't compare apples and oranges, fixing a segfault when
using an perf.data file generated by a different subcommand. ie:

./perf mem record sleep 1
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.017 MB perf.data (~724 samples) ]

./perf lock report
Segmentation fault (core dumped)

Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: Aswin Chandramouleeswaran <aswin@hp.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1378693159-8747-5-git-send-email-davidlohr@hp.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-lock.c | 68 +++++++++++++++++++++++++----------------------
 1 file changed, 36 insertions(+), 32 deletions(-)

diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 77843478a27a..780484fb59a0 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -818,6 +818,18 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
 	return 0;
 }
 
+static void sort_result(void)
+{
+	unsigned int i;
+	struct lock_stat *st;
+
+	for (i = 0; i < LOCKHASH_SIZE; i++) {
+		list_for_each_entry(st, &lockhash_table[i], hash_entry) {
+			insert_to_result(st, compare);
+		}
+	}
+}
+
 static const struct perf_evsel_str_handler lock_tracepoints[] = {
 	{ "lock:lock_acquire",	 perf_evsel__process_lock_acquire,   }, /* CONFIG_LOCKDEP */
 	{ "lock:lock_acquired",	 perf_evsel__process_lock_acquired,  }, /* CONFIG_LOCKDEP, CONFIG_LOCK_STAT */
@@ -825,51 +837,47 @@ static const struct perf_evsel_str_handler lock_tracepoints[] = {
 	{ "lock:lock_release",	 perf_evsel__process_lock_release,   }, /* CONFIG_LOCKDEP */
 };
 
-static int read_events(void)
+static int __cmd_report(bool display_info)
 {
+	int err = -EINVAL;
 	struct perf_tool eops = {
 		.sample		 = process_sample_event,
 		.comm		 = perf_event__process_comm,
 		.ordered_samples = true,
 	};
+
 	session = perf_session__new(input_name, O_RDONLY, 0, false, &eops);
 	if (!session) {
 		pr_err("Initializing perf session failed\n");
-		return -1;
+		return -ENOMEM;
 	}
 
+	if (!perf_session__has_traces(session, "lock record"))
+		goto out_delete;
+
 	if (perf_session__set_tracepoints_handlers(session, lock_tracepoints)) {
 		pr_err("Initializing perf session tracepoint handlers failed\n");
-		return -1;
+		goto out_delete;
 	}
 
-	return perf_session__process_events(session, &eops);
-}
+	if (select_key())
+		goto out_delete;
 
-static void sort_result(void)
-{
-	unsigned int i;
-	struct lock_stat *st;
-
-	for (i = 0; i < LOCKHASH_SIZE; i++) {
-		list_for_each_entry(st, &lockhash_table[i], hash_entry) {
-			insert_to_result(st, compare);
-		}
-	}
-}
+	err = perf_session__process_events(session, &eops);
+	if (err)
+		goto out_delete;
 
-static int __cmd_report(void)
-{
 	setup_pager();
+	if (display_info) /* used for info subcommand */
+		err = dump_info();
+	else {
+		sort_result();
+		print_result();
+	}
 
-	if ((select_key() != 0) ||
-	    (read_events() != 0))
-		return -1;
-
-	sort_result();
-	print_result();
-
-	return 0;
+out_delete:
+	perf_session__delete(session);
+	return err;
 }
 
 static int __cmd_record(int argc, const char **argv)
@@ -970,7 +978,7 @@ int cmd_lock(int argc, const char **argv, const char *prefix __maybe_unused)
 			if (argc)
 				usage_with_options(report_usage, report_options);
 		}
-		__cmd_report();
+		rc = __cmd_report(false);
 	} else if (!strcmp(argv[0], "script")) {
 		/* Aliased to 'perf script' */
 		return cmd_script(argc, argv, prefix);
@@ -983,11 +991,7 @@ int cmd_lock(int argc, const char **argv, const char *prefix __maybe_unused)
 		}
 		/* recycling report_lock_ops */
 		trace_handler = &report_lock_ops;
-		setup_pager();
-		if (read_events() != 0)
-			rc = -1;
-		else
-			rc = dump_info();
+		rc = __cmd_report(true);
 	} else {
 		usage_with_options(lock_usage, lock_options);
 	}
-- 
cgit 


From 60a25cbc4a167fc0129296c3c640d8506a57acc5 Mon Sep 17 00:00:00 2001
From: Davidlohr Bueso <davidlohr@hp.com>
Date: Sun, 8 Sep 2013 19:19:18 -0700
Subject: perf lock: Limit bad rate precision

Two decimal precision should be enough for this.

Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: Aswin Chandramouleeswaran <aswin@hp.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1378693159-8747-7-git-send-email-davidlohr@hp.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-lock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 780484fb59a0..972310cbeb63 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -686,7 +686,7 @@ static void print_bad_events(int bad, int total)
 
 	pr_info("\n=== output for debug===\n\n");
 	pr_info("bad: %d, total: %d\n", bad, total);
-	pr_info("bad rate: %f %%\n", (double)bad / (double)total * 100);
+	pr_info("bad rate: %.2f %%\n", (double)bad / (double)total * 100);
 	pr_info("histogram of events caused bad sequence\n");
 	for (i = 0; i < BROKEN_MAX; i++)
 		pr_info(" %10s: %d\n", name[i], bad_hist[i]);
-- 
cgit 


From f37376cd721a539ac398cbb7718b72fce83cd49b Mon Sep 17 00:00:00 2001
From: Davidlohr Bueso <davidlohr@hp.com>
Date: Sun, 8 Sep 2013 19:19:19 -0700
Subject: perf lock: Account for lock average wait time

While perf-lock currently reports both the total wait time and the
number of contentions, it doesn't explicitly show the average wait time.
Having this value immediately in the report can be quite useful when
looking into performance issues.

Furthermore, allowing report to sort by averages is another handy
feature to have - and thus do not only print the value, but add it to
the lock_stat structure.

Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: Aswin Chandramouleeswaran <aswin@hp.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1378693159-8747-8-git-send-email-davidlohr@hp.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-lock.txt |  2 +-
 tools/perf/builtin-lock.c              | 10 +++++++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/tools/perf/Documentation/perf-lock.txt b/tools/perf/Documentation/perf-lock.txt
index c7f5f55634ac..ab25be28c9dc 100644
--- a/tools/perf/Documentation/perf-lock.txt
+++ b/tools/perf/Documentation/perf-lock.txt
@@ -48,7 +48,7 @@ REPORT OPTIONS
 -k::
 --key=<value>::
         Sorting key. Possible values: acquired (default), contended,
-        wait_total, wait_max, wait_min.
+	avg_wait, wait_total, wait_max, wait_min.
 
 INFO OPTIONS
 ------------
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 972310cbeb63..6a9076f165f4 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -56,7 +56,9 @@ struct lock_stat {
 
 	unsigned int		nr_readlock;
 	unsigned int		nr_trylock;
+
 	/* these times are in nano sec. */
+	u64                     avg_wait_time;
 	u64			wait_time_total;
 	u64			wait_time_min;
 	u64			wait_time_max;
@@ -208,6 +210,7 @@ static struct thread_stat *thread_stat_findnew_first(u32 tid)
 
 SINGLE_KEY(nr_acquired)
 SINGLE_KEY(nr_contended)
+SINGLE_KEY(avg_wait_time)
 SINGLE_KEY(wait_time_total)
 SINGLE_KEY(wait_time_max)
 
@@ -244,6 +247,7 @@ static struct rb_root		result;	/* place to store sorted data */
 struct lock_key keys[] = {
 	DEF_KEY_LOCK(acquired, nr_acquired),
 	DEF_KEY_LOCK(contended, nr_contended),
+	DEF_KEY_LOCK(avg_wait, avg_wait_time),
 	DEF_KEY_LOCK(wait_total, wait_time_total),
 	DEF_KEY_LOCK(wait_min, wait_time_min),
 	DEF_KEY_LOCK(wait_max, wait_time_max),
@@ -516,6 +520,7 @@ static int report_lock_acquired_event(struct perf_evsel *evsel,
 
 	seq->state = SEQ_STATE_ACQUIRED;
 	ls->nr_acquired++;
+	ls->avg_wait_time = ls->nr_contended ? ls->wait_time_total/ls->nr_contended : 0;
 	seq->prev_event_time = sample->time;
 end:
 	return 0;
@@ -570,6 +575,7 @@ static int report_lock_contended_event(struct perf_evsel *evsel,
 
 	seq->state = SEQ_STATE_CONTENDED;
 	ls->nr_contended++;
+	ls->avg_wait_time = ls->wait_time_total/ls->nr_contended;
 	seq->prev_event_time = sample->time;
 end:
 	return 0;
@@ -703,6 +709,7 @@ static void print_result(void)
 	pr_info("%10s ", "acquired");
 	pr_info("%10s ", "contended");
 
+	pr_info("%15s ", "avg wait (ns)");
 	pr_info("%15s ", "total wait (ns)");
 	pr_info("%15s ", "max wait (ns)");
 	pr_info("%15s ", "min wait (ns)");
@@ -734,6 +741,7 @@ static void print_result(void)
 		pr_info("%10u ", st->nr_acquired);
 		pr_info("%10u ", st->nr_contended);
 
+		pr_info("%15" PRIu64 " ", st->avg_wait_time);
 		pr_info("%15" PRIu64 " ", st->wait_time_total);
 		pr_info("%15" PRIu64 " ", st->wait_time_max);
 		pr_info("%15" PRIu64 " ", st->wait_time_min == ULLONG_MAX ?
@@ -940,7 +948,7 @@ int cmd_lock(int argc, const char **argv, const char *prefix __maybe_unused)
 	};
 	const struct option report_options[] = {
 	OPT_STRING('k', "key", &sort_key, "acquired",
-		    "key for sorting (acquired / contended / wait_total / wait_max / wait_min)"),
+		    "key for sorting (acquired / contended / avg_wait / wait_total / wait_max / wait_min)"),
 	/* TODO: type */
 	OPT_END()
 	};
-- 
cgit 


From 994a1f78b191df0c9d6caca3f3afb03e247aff26 Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Sun, 1 Sep 2013 12:36:12 +0200
Subject: perf tools: Check mmap pages value early

Move the check of the mmap_pages value to the options parsing time, so
we could rely on this value on other parts of code.

Related changes come in the next patches.

Also changes perf_evlist::mmap_len to proper size_t type.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1378031796-17892-2-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-kvm.c    |  5 +++--
 tools/perf/builtin-record.c |  9 +++------
 tools/perf/builtin-top.c    |  5 +++--
 tools/perf/builtin-trace.c  |  5 +++--
 tools/perf/util/evlist.c    | 46 ++++++++++++++++++++++++++++++++++++---------
 tools/perf/util/evlist.h    |  6 +++++-
 6 files changed, 54 insertions(+), 22 deletions(-)

diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index 935d52216c89..cfa0b7979914 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -1426,8 +1426,9 @@ static int kvm_events_live(struct perf_kvm_stat *kvm,
 	const struct option live_options[] = {
 		OPT_STRING('p', "pid", &kvm->opts.target.pid, "pid",
 			"record events on existing process id"),
-		OPT_UINTEGER('m', "mmap-pages", &kvm->opts.mmap_pages,
-			"number of mmap data pages"),
+		OPT_CALLBACK('m', "mmap-pages", &kvm->opts.mmap_pages, "pages",
+			"number of mmap data pages",
+			perf_evlist__parse_mmap_pages),
 		OPT_INCR('v', "verbose", &verbose,
 			"be more verbose (show counter open errors, etc)"),
 		OPT_BOOLEAN('a', "all-cpus", &kvm->opts.target.system_wide,
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 0aacd6295fe6..92ca5419073b 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -233,10 +233,6 @@ try_again:
 			       "or try again with a smaller value of -m/--mmap_pages.\n"
 			       "(current value: %d)\n", opts->mmap_pages);
 			rc = -errno;
-		} else if (!is_power_of_2(opts->mmap_pages) &&
-			   (opts->mmap_pages != UINT_MAX)) {
-			pr_err("--mmap_pages/-m value must be a power of two.");
-			rc = -EINVAL;
 		} else {
 			pr_err("failed to mmap with %d (%s)\n", errno, strerror(errno));
 			rc = -errno;
@@ -854,8 +850,9 @@ const struct option record_options[] = {
 	OPT_BOOLEAN('i', "no-inherit", &record.opts.no_inherit,
 		    "child tasks do not inherit counters"),
 	OPT_UINTEGER('F', "freq", &record.opts.user_freq, "profile at this frequency"),
-	OPT_UINTEGER('m', "mmap-pages", &record.opts.mmap_pages,
-		     "number of mmap data pages"),
+	OPT_CALLBACK('m', "mmap-pages", &record.opts.mmap_pages, "pages",
+		     "number of mmap data pages",
+		     perf_evlist__parse_mmap_pages),
 	OPT_BOOLEAN(0, "group", &record.opts.group,
 		    "put the counters into a counter group"),
 	OPT_CALLBACK_DEFAULT('g', "call-graph", &record.opts,
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index b3e0229ee38f..e8466956adbe 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1075,8 +1075,9 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
 		   "file", "vmlinux pathname"),
 	OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols,
 		    "hide kernel symbols"),
-	OPT_UINTEGER('m', "mmap-pages", &opts->mmap_pages,
-		     "number of mmap data pages"),
+	OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages",
+		     "number of mmap data pages",
+		     perf_evlist__parse_mmap_pages),
 	OPT_INTEGER('r', "realtime", &top.realtime_prio,
 		    "collect data with this RT SCHED_FIFO priority"),
 	OPT_INTEGER('d', "delay", &top.delay_secs,
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index be658433d3bb..f3ddbb008fb4 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1528,8 +1528,9 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
 		    "list of cpus to monitor"),
 	OPT_BOOLEAN(0, "no-inherit", &trace.opts.no_inherit,
 		    "child tasks do not inherit counters"),
-	OPT_UINTEGER('m', "mmap-pages", &trace.opts.mmap_pages,
-		     "number of mmap data pages"),
+	OPT_CALLBACK('m', "mmap-pages", &trace.opts.mmap_pages, "pages",
+		     "number of mmap data pages",
+		     perf_evlist__parse_mmap_pages),
 	OPT_STRING('u', "uid", &trace.opts.target.uid_str, "user",
 		   "user to profile"),
 	OPT_CALLBACK(0, "duration", &trace, "float",
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index f9f77bee0b1b..4283f49ca0ab 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -18,6 +18,7 @@
 #include <unistd.h>
 
 #include "parse-events.h"
+#include "parse-options.h"
 
 #include <sys/mman.h>
 
@@ -672,6 +673,40 @@ out_unmap:
 	return -1;
 }
 
+static size_t perf_evlist__mmap_size(unsigned long pages)
+{
+	/* 512 kiB: default amount of unprivileged mlocked memory */
+	if (pages == UINT_MAX)
+		pages = (512 * 1024) / page_size;
+	else if (!is_power_of_2(pages))
+		return 0;
+
+	return (pages + 1) * page_size;
+}
+
+int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str,
+				  int unset __maybe_unused)
+{
+	unsigned int pages, *mmap_pages = opt->value;
+	size_t size;
+	char *eptr;
+
+	pages = strtoul(str, &eptr, 10);
+	if (*eptr != '\0') {
+		pr_err("failed to parse --mmap_pages/-m value\n");
+		return -1;
+	}
+
+	size = perf_evlist__mmap_size(pages);
+	if (!size) {
+		pr_err("--mmap_pages/-m value must be a power of two.");
+		return -1;
+	}
+
+	*mmap_pages = pages;
+	return 0;
+}
+
 /** perf_evlist__mmap - Create per cpu maps to receive events
  *
  * @evlist - list of events
@@ -695,14 +730,6 @@ int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
 	const struct thread_map *threads = evlist->threads;
 	int prot = PROT_READ | (overwrite ? 0 : PROT_WRITE), mask;
 
-        /* 512 kiB: default amount of unprivileged mlocked memory */
-        if (pages == UINT_MAX)
-                pages = (512 * 1024) / page_size;
-	else if (!is_power_of_2(pages))
-		return -EINVAL;
-
-	mask = pages * page_size - 1;
-
 	if (evlist->mmap == NULL && perf_evlist__alloc_mmap(evlist) < 0)
 		return -ENOMEM;
 
@@ -710,7 +737,8 @@ int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
 		return -ENOMEM;
 
 	evlist->overwrite = overwrite;
-	evlist->mmap_len = (pages + 1) * page_size;
+	evlist->mmap_len = perf_evlist__mmap_size(pages);
+	mask = evlist->mmap_len - page_size - 1;
 
 	list_for_each_entry(evsel, &evlist->entries, node) {
 		if ((evsel->attr.read_format & PERF_FORMAT_ID) &&
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 880d7139d2fb..4edb5008fd36 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -31,7 +31,7 @@ struct perf_evlist {
 	int		 nr_groups;
 	int		 nr_fds;
 	int		 nr_mmaps;
-	int		 mmap_len;
+	size_t		 mmap_len;
 	int		 id_pos;
 	int		 is_pos;
 	u64		 combined_sample_type;
@@ -103,6 +103,10 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist,
 				  bool want_signal);
 int perf_evlist__start_workload(struct perf_evlist *evlist);
 
+int perf_evlist__parse_mmap_pages(const struct option *opt,
+				  const char *str,
+				  int unset);
+
 int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
 		      bool overwrite);
 void perf_evlist__munmap(struct perf_evlist *evlist);
-- 
cgit 


From 27050f530dc4fd88dc93d85c177e000efe970d12 Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Sun, 1 Sep 2013 12:36:13 +0200
Subject: perf tools: Add possibility to specify mmap size

Adding possibility to specify mmap size via -m/--mmap-pages
by appending unit size character (B/K/M/G) to the
number, like:
  $ perf record -m 8K ls
  $ perf record -m 2M ls

The size is rounded up appropriately to follow perf
mmap restrictions.

If no unit is specified the number provides pages as
of now, like:
  $ perf record -m 8 ls

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1378031796-17892-3-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-kvm.txt    |  4 +++-
 tools/perf/Documentation/perf-record.txt |  4 +++-
 tools/perf/Documentation/perf-top.txt    |  4 +++-
 tools/perf/Documentation/perf-trace.txt  |  4 +++-
 tools/perf/util/evlist.c                 | 32 ++++++++++++++++++++++++++------
 tools/perf/util/util.c                   | 25 +++++++++++++++++++++++++
 tools/perf/util/util.h                   | 14 ++++++++++++++
 7 files changed, 77 insertions(+), 10 deletions(-)

diff --git a/tools/perf/Documentation/perf-kvm.txt b/tools/perf/Documentation/perf-kvm.txt
index ac84db2d2334..6a06cefe9642 100644
--- a/tools/perf/Documentation/perf-kvm.txt
+++ b/tools/perf/Documentation/perf-kvm.txt
@@ -109,7 +109,9 @@ STAT LIVE OPTIONS
 
 -m::
 --mmap-pages=::
-    Number of mmap data pages. Must be a power of two.
+    Number of mmap data pages (must be a power of two) or size
+    specification with appended unit character - B/K/M/G. The
+    size is rounded up to have nearest pages power of two value.
 
 -a::
 --all-cpus::
diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index f732eaa6a500..f10ab63576d7 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -87,7 +87,9 @@ OPTIONS
 
 -m::
 --mmap-pages=::
-	Number of mmap data pages. Must be a power of two.
+	Number of mmap data pages (must be a power of two) or size
+	specification with appended unit character - B/K/M/G. The
+	size is rounded up to have nearest pages power of two value.
 
 -g::
 --call-graph::
diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index 6d70fbfe28a2..f65777c1f723 100644
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -68,7 +68,9 @@ Default is to monitor all CPUS.
 
 -m <pages>::
 --mmap-pages=<pages>::
-	Number of mmapped data pages.
+	Number of mmap data pages (must be a power of two) or size
+	specification with appended unit character - B/K/M/G. The
+	size is rounded up to have nearest pages power of two value.
 
 -p <pid>::
 --pid=<pid>::
diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt
index 37773854d5c4..7f70d3640edd 100644
--- a/tools/perf/Documentation/perf-trace.txt
+++ b/tools/perf/Documentation/perf-trace.txt
@@ -59,7 +59,9 @@ OPTIONS
 
 -m::
 --mmap-pages=::
-	Number of mmap data pages. Must be a power of two.
+	Number of mmap data pages (must be a power of two) or size
+	specification with appended unit character - B/K/M/G. The
+	size is rounded up to have nearest pages power of two value.
 
 -C::
 --cpu::
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 4283f49ca0ab..d21ab0812926 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -687,14 +687,33 @@ static size_t perf_evlist__mmap_size(unsigned long pages)
 int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str,
 				  int unset __maybe_unused)
 {
-	unsigned int pages, *mmap_pages = opt->value;
+	unsigned int pages, val, *mmap_pages = opt->value;
 	size_t size;
-	char *eptr;
+	static struct parse_tag tags[] = {
+		{ .tag  = 'B', .mult = 1       },
+		{ .tag  = 'K', .mult = 1 << 10 },
+		{ .tag  = 'M', .mult = 1 << 20 },
+		{ .tag  = 'G', .mult = 1 << 30 },
+		{ .tag  = 0 },
+	};
 
-	pages = strtoul(str, &eptr, 10);
-	if (*eptr != '\0') {
-		pr_err("failed to parse --mmap_pages/-m value\n");
-		return -1;
+	val = parse_tag_value(str, tags);
+	if (val != (unsigned int) -1) {
+		/* we got file size value */
+		pages = PERF_ALIGN(val, page_size) / page_size;
+		if (!is_power_of_2(pages)) {
+			pages = next_pow2(pages);
+			pr_info("rounding mmap pages size to %u (%u pages)\n",
+				pages * page_size, pages);
+		}
+	} else {
+		/* we got pages count value */
+		char *eptr;
+		pages = strtoul(str, &eptr, 10);
+		if (*eptr != '\0') {
+			pr_err("failed to parse --mmap_pages/-m value\n");
+			return -1;
+		}
 	}
 
 	size = perf_evlist__mmap_size(pages);
@@ -738,6 +757,7 @@ int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
 
 	evlist->overwrite = overwrite;
 	evlist->mmap_len = perf_evlist__mmap_size(pages);
+	pr_debug("mmap size %luB\n", evlist->mmap_len);
 	mask = evlist->mmap_len - page_size - 1;
 
 	list_for_each_entry(evsel, &evlist->entries, node) {
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index ccfdeb62f576..ab71d6216803 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -361,3 +361,28 @@ int parse_nsec_time(const char *str, u64 *ptime)
 	*ptime = time_sec * NSEC_PER_SEC + time_nsec;
 	return 0;
 }
+
+unsigned long parse_tag_value(const char *str, struct parse_tag *tags)
+{
+	struct parse_tag *i = tags;
+
+	while (i->tag) {
+		char *s;
+
+		s = strchr(str, i->tag);
+		if (s) {
+			unsigned long int value;
+			char *endptr;
+
+			value = strtoul(str, &endptr, 10);
+			if (s != endptr)
+				break;
+
+			value *= i->mult;
+			return value;
+		}
+		i++;
+	}
+
+	return (unsigned long) -1;
+}
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index a53535949043..c29ecaabf461 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -270,6 +270,13 @@ bool is_power_of_2(unsigned long n)
 	return (n != 0 && ((n & (n - 1)) == 0));
 }
 
+static inline unsigned next_pow2(unsigned x)
+{
+	if (!x)
+		return 1;
+	return 1ULL << (32 - __builtin_clz(x - 1));
+}
+
 size_t hex_width(u64 v);
 int hex2u64(const char *ptr, u64 *val);
 
@@ -281,4 +288,11 @@ void dump_stack(void);
 extern unsigned int page_size;
 
 void get_term_dimensions(struct winsize *ws);
+
+struct parse_tag {
+	char tag;
+	int mult;
+};
+
+unsigned long parse_tag_value(const char *str, struct parse_tag *tags);
 #endif /* GIT_COMPAT_UTIL_H */
-- 
cgit 


From b22d54b09a5448d3706929c6f0eae36429f4ec5d Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Sun, 1 Sep 2013 12:36:14 +0200
Subject: perf evlist: Introduce perf_evlist__new_default function

Adding new common function to create evlist with default event. It
spares some code lines in automated tests.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1378031796-17892-4-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/tests/perf-record.c | 12 +-----------
 tools/perf/tests/task-exit.c   | 14 ++------------
 tools/perf/util/evlist.c       | 12 ++++++++++++
 tools/perf/util/evlist.h       |  1 +
 4 files changed, 16 insertions(+), 23 deletions(-)

diff --git a/tools/perf/tests/perf-record.c b/tools/perf/tests/perf-record.c
index b8a7056519ac..82ac71550091 100644
--- a/tools/perf/tests/perf-record.c
+++ b/tools/perf/tests/perf-record.c
@@ -45,7 +45,7 @@ int test__PERF_RECORD(void)
 	};
 	cpu_set_t cpu_mask;
 	size_t cpu_mask_size = sizeof(cpu_mask);
-	struct perf_evlist *evlist = perf_evlist__new();
+	struct perf_evlist *evlist = perf_evlist__new_default();
 	struct perf_evsel *evsel;
 	struct perf_sample sample;
 	const char *cmd = "sleep";
@@ -65,16 +65,6 @@ int test__PERF_RECORD(void)
 		goto out;
 	}
 
-	/*
-	 * We need at least one evsel in the evlist, use the default
-	 * one: "cycles".
-	 */
-	err = perf_evlist__add_default(evlist);
-	if (err < 0) {
-		pr_debug("Not enough memory to create evsel\n");
-		goto out_delete_evlist;
-	}
-
 	/*
 	 * Create maps of threads and cpus to monitor. In this case
 	 * we start with all threads and cpus (-1, -1) but then in
diff --git a/tools/perf/tests/task-exit.c b/tools/perf/tests/task-exit.c
index 28fe5894b061..b07f8a14e15d 100644
--- a/tools/perf/tests/task-exit.c
+++ b/tools/perf/tests/task-exit.c
@@ -37,20 +37,11 @@ int test__task_exit(void)
 	signal(SIGCHLD, sig_handler);
 	signal(SIGUSR1, sig_handler);
 
-	evlist = perf_evlist__new();
+	evlist = perf_evlist__new_default();
 	if (evlist == NULL) {
-		pr_debug("perf_evlist__new\n");
+		pr_debug("perf_evlist__new_default\n");
 		return -1;
 	}
-	/*
-	 * We need at least one evsel in the evlist, use the default
-	 * one: "cycles".
-	 */
-	err = perf_evlist__add_default(evlist);
-	if (err < 0) {
-		pr_debug("Not enough memory to create evsel\n");
-		goto out_free_evlist;
-	}
 
 	/*
 	 * Create maps of threads and cpus to monitor. In this case
@@ -117,7 +108,6 @@ out_close_evlist:
 	perf_evlist__close(evlist);
 out_delete_maps:
 	perf_evlist__delete_maps(evlist);
-out_free_evlist:
 	perf_evlist__delete(evlist);
 	return err;
 }
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index d21ab0812926..f0d71a9d49f4 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -50,6 +50,18 @@ struct perf_evlist *perf_evlist__new(void)
 	return evlist;
 }
 
+struct perf_evlist *perf_evlist__new_default(void)
+{
+	struct perf_evlist *evlist = perf_evlist__new();
+
+	if (evlist && perf_evlist__add_default(evlist)) {
+		perf_evlist__delete(evlist);
+		evlist = NULL;
+	}
+
+	return evlist;
+}
+
 /**
  * perf_evlist__set_id_pos - set the positions of event ids.
  * @evlist: selected event list
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 4edb5008fd36..871b55ab5dee 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -53,6 +53,7 @@ struct perf_evsel_str_handler {
 };
 
 struct perf_evlist *perf_evlist__new(void);
+struct perf_evlist *perf_evlist__new_default(void);
 void perf_evlist__init(struct perf_evlist *evlist, struct cpu_map *cpus,
 		       struct thread_map *threads);
 void perf_evlist__exit(struct perf_evlist *evlist);
-- 
cgit 


From dd96c46b5c765a779d8c35cc7d1df7515b4c7baf Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Sun, 1 Sep 2013 12:36:15 +0200
Subject: perf tools: Adding throttle event data struct support

Moving 'struct throttle_event' out of python code and making it global
as any other event.

There's no usage of throttling events in any perf commands so far
(besides python support), but we'll need this event data backup for
upcoming test.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1378031796-17892-5-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/event.h   |  7 +++++++
 tools/perf/util/python.c  |  7 -------
 tools/perf/util/session.c | 13 +++++++++++++
 3 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 17d9e167a7b9..9b7d4d333111 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -61,6 +61,12 @@ struct read_event {
 	u64 id;
 };
 
+struct throttle_event {
+	struct perf_event_header header;
+	u64 time;
+	u64 id;
+	u64 stream_id;
+};
 
 #define PERF_SAMPLE_MASK				\
 	(PERF_SAMPLE_IP | PERF_SAMPLE_TID |		\
@@ -178,6 +184,7 @@ union perf_event {
 	struct fork_event		fork;
 	struct lost_event		lost;
 	struct read_event		read;
+	struct throttle_event		throttle;
 	struct sample_event		sample;
 	struct attr_event		attr;
 	struct event_type_event		event_type;
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index a24ce0a6a941..06efd027b1db 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -33,13 +33,6 @@ int eprintf(int level, const char *fmt, ...)
 # define PyVarObject_HEAD_INIT(type, size) PyObject_HEAD_INIT(type) size,
 #endif
 
-struct throttle_event {
-	struct perf_event_header header;
-	u64			 time;
-	u64			 id;
-	u64			 stream_id;
-};
-
 PyMODINIT_FUNC initperf(void);
 
 #define member_def(type, member, ptype, help) \
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index b97f468af955..d1e449534b33 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -397,6 +397,17 @@ static void perf_event__read_swap(union perf_event *event, bool sample_id_all)
 		swap_sample_id_all(event, &event->read + 1);
 }
 
+static void perf_event__throttle_swap(union perf_event *event,
+				      bool sample_id_all)
+{
+	event->throttle.time	  = bswap_64(event->throttle.time);
+	event->throttle.id	  = bswap_64(event->throttle.id);
+	event->throttle.stream_id = bswap_64(event->throttle.stream_id);
+
+	if (sample_id_all)
+		swap_sample_id_all(event, &event->throttle + 1);
+}
+
 static u8 revbyte(u8 b)
 {
 	int rev = (b >> 4) | ((b & 0xf) << 4);
@@ -482,6 +493,8 @@ static perf_event__swap_op perf_event__swap_ops[] = {
 	[PERF_RECORD_EXIT]		  = perf_event__task_swap,
 	[PERF_RECORD_LOST]		  = perf_event__all64_swap,
 	[PERF_RECORD_READ]		  = perf_event__read_swap,
+	[PERF_RECORD_THROTTLE]		  = perf_event__throttle_swap,
+	[PERF_RECORD_UNTHROTTLE]	  = perf_event__throttle_swap,
 	[PERF_RECORD_SAMPLE]		  = perf_event__all64_swap,
 	[PERF_RECORD_HEADER_ATTR]	  = perf_event__hdr_attr_swap,
 	[PERF_RECORD_HEADER_EVENT_TYPE]	  = perf_event__event_type_swap,
-- 
cgit 


From fc2be6968e99b5314f20e938a547d44dcb1c40eb Mon Sep 17 00:00:00 2001
From: Willy Tarreau <w@1wt.eu>
Date: Sat, 14 Sep 2013 10:32:59 +0200
Subject: perf symbols: Add new option --ignore-vmlinux for perf top

Running "perf top" on a machine with possibly invalid or non-matching
vmlinux at the various places results in no symbol resolving despite
/proc/kallsyms being present and valid.

Add a new option --ignore-vmlinux to explicitly indicate that we do not
want to use these kernels and just use what we have (kallsyms).

Signed-off-by: Willy Tarreau <w@1wt.eu>
Cc: Ingo Molnar <mingo@redhat.com>
Link: http://lkml.kernel.org/r/20130914083259.GA3418@1wt.eu
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-top.c | 2 ++
 tools/perf/util/symbol.c | 4 ++--
 tools/perf/util/symbol.h | 1 +
 3 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index e8466956adbe..65c49b2f51c1 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1073,6 +1073,8 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
 		    "list of cpus to monitor"),
 	OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name,
 		   "file", "vmlinux pathname"),
+	OPT_BOOLEAN(0, "ignore-vmlinux", &symbol_conf.ignore_vmlinux,
+		    "don't load vmlinux even if found"),
 	OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols,
 		    "hide kernel symbols"),
 	OPT_CALLBACK('m', "mmap-pages", &opts->mmap_pages, "pages",
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index cd1dcc45049b..48c38791d61b 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1215,7 +1215,7 @@ static int dso__load_kernel_sym(struct dso *dso, struct map *map,
 		goto do_kallsyms;
 	}
 
-	if (symbol_conf.vmlinux_name != NULL) {
+	if (!symbol_conf.ignore_vmlinux && symbol_conf.vmlinux_name != NULL) {
 		err = dso__load_vmlinux(dso, map,
 					symbol_conf.vmlinux_name, filter);
 		if (err > 0) {
@@ -1227,7 +1227,7 @@ static int dso__load_kernel_sym(struct dso *dso, struct map *map,
 		return err;
 	}
 
-	if (vmlinux_path != NULL) {
+	if (!symbol_conf.ignore_vmlinux && vmlinux_path != NULL) {
 		err = dso__load_vmlinux_path(dso, map, filter);
 		if (err > 0)
 			return err;
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 2a97bb1a8097..9b8b213a62c1 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -85,6 +85,7 @@ struct symbol_conf {
 	unsigned short	priv_size;
 	unsigned short	nr_events;
 	bool		try_vmlinux_path,
+			ignore_vmlinux,
 			show_kernel_path,
 			use_modules,
 			sort_by_name,
-- 
cgit 


From 15c9887e15e874f3c15342a897577e914a781738 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Wed, 9 Oct 2013 11:19:18 +0200
Subject: ARM: OMAP2+: pdata-quirks: add legacy display init for IGEPv2 board

IGEPv2 board has both an DVI and TFP410 video interfaces but
DSS support for DeviceTree has not yet landed in mainline so
is necessary to init the displays using legacy platform code.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/dss-common.c   | 44 ++++++++++++++++++++++++++++++++++++++
 arch/arm/mach-omap2/dss-common.h   |  1 +
 arch/arm/mach-omap2/pdata-quirks.c |  6 ++++++
 3 files changed, 51 insertions(+)

diff --git a/arch/arm/mach-omap2/dss-common.c b/arch/arm/mach-omap2/dss-common.c
index bf89effa4c99..365bfd3d9c68 100644
--- a/arch/arm/mach-omap2/dss-common.c
+++ b/arch/arm/mach-omap2/dss-common.c
@@ -213,3 +213,47 @@ void __init omap_4430sdp_display_init_of(void)
 	platform_device_register(&sdp4430_tpd_device);
 	platform_device_register(&sdp4430_hdmi_connector_device);
 }
+
+
+/* OMAP3 IGEPv2 data */
+
+#define IGEP2_DVI_TFP410_POWER_DOWN_GPIO	170
+
+/* DVI Connector */
+static struct connector_dvi_platform_data omap3_igep2_dvi_connector_pdata = {
+	.name                   = "dvi",
+	.source                 = "tfp410.0",
+	.i2c_bus_num            = 3,
+};
+
+static struct platform_device omap3_igep2_dvi_connector_device = {
+	.name                   = "connector-dvi",
+	.id                     = 0,
+	.dev.platform_data      = &omap3_igep2_dvi_connector_pdata,
+};
+
+/* TFP410 DPI-to-DVI chip */
+static struct encoder_tfp410_platform_data omap3_igep2_tfp410_pdata = {
+	.name                   = "tfp410.0",
+	.source                 = "dpi.0",
+	.data_lines             = 24,
+	.power_down_gpio        = IGEP2_DVI_TFP410_POWER_DOWN_GPIO,
+};
+
+static struct platform_device omap3_igep2_tfp410_device = {
+	.name                   = "tfp410",
+	.id                     = 0,
+	.dev.platform_data      = &omap3_igep2_tfp410_pdata,
+};
+
+static struct omap_dss_board_info igep2_dss_data = {
+	.default_display_name = "dvi",
+};
+
+void __init omap3_igep2_display_init_of(void)
+{
+	omap_display_init(&igep2_dss_data);
+
+	platform_device_register(&omap3_igep2_tfp410_device);
+	platform_device_register(&omap3_igep2_dvi_connector_device);
+}
diff --git a/arch/arm/mach-omap2/dss-common.h b/arch/arm/mach-omap2/dss-common.h
index c28fe3c03588..a9becf0d5be8 100644
--- a/arch/arm/mach-omap2/dss-common.h
+++ b/arch/arm/mach-omap2/dss-common.h
@@ -8,5 +8,6 @@
 
 void __init omap4_panda_display_init_of(void);
 void __init omap_4430sdp_display_init_of(void);
+void __init omap3_igep2_display_init_of(void);
 
 #endif
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index 3d472dbb9205..9113e7037ae5 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -74,6 +74,11 @@ static void __init hsmmc2_internal_input_clk(void)
 	reg |= OMAP2_MMCSDIO2ADPCLKISEL;
 	omap_ctrl_writel(reg, OMAP343X_CONTROL_DEVCONF1);
 }
+
+static void __init omap3_igep0020_legacy_init(void)
+{
+	omap3_igep2_display_init_of();
+}
 #endif /* CONFIG_ARCH_OMAP3 */
 
 #ifdef CONFIG_ARCH_OMAP4
@@ -103,6 +108,7 @@ static struct pdata_init pdata_quirks[] __initdata = {
 #ifdef CONFIG_ARCH_OMAP3
 	{ "nokia,omap3-n9", hsmmc2_internal_input_clk, },
 	{ "nokia,omap3-n950", hsmmc2_internal_input_clk, },
+	{ "isee,omap3-igep0020", omap3_igep0020_legacy_init, },
 #endif
 #ifdef CONFIG_ARCH_OMAP4
 	{ "ti,omap4-sdp", omap4_sdp_legacy_init, },
-- 
cgit 


From 68a531a1dec12708817552dad4eefc5968dd333f Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Wed, 9 Oct 2013 11:19:19 +0200
Subject: ARM: OMAP2+: igep0020: use display init from dss-common

Now that display information and setup is made from dss-common
there is no need to have this code in the board file.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-igep0020.c | 41 +++---------------------------------
 1 file changed, 3 insertions(+), 38 deletions(-)

diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c
index 06dbb2d3d38b..d648d50d9d24 100644
--- a/arch/arm/mach-omap2/board-igep0020.c
+++ b/arch/arm/mach-omap2/board-igep0020.c
@@ -43,6 +43,7 @@
 #include "board-flash.h"
 #include "control.h"
 #include "gpmc-onenand.h"
+#include "dss-common.h"
 
 #define IGEP2_SMSC911X_CS       5
 #define IGEP2_SMSC911X_GPIO     176
@@ -50,7 +51,6 @@
 #define IGEP2_GPIO_LED0_GREEN   26
 #define IGEP2_GPIO_LED0_RED     27
 #define IGEP2_GPIO_LED1_RED     28
-#define IGEP2_GPIO_DVI_PUP      170
 
 #define IGEP2_RB_GPIO_WIFI_NPD     94
 #define IGEP2_RB_GPIO_WIFI_NRESET  95
@@ -429,41 +429,6 @@ static struct twl4030_gpio_platform_data igep_twl4030_gpio_pdata = {
 	.setup		= igep_twl_gpio_setup,
 };
 
-static struct connector_dvi_platform_data omap3stalker_dvi_connector_pdata = {
-	.name                   = "dvi",
-	.source                 = "tfp410.0",
-	.i2c_bus_num            = 3,
-};
-
-static struct platform_device omap3stalker_dvi_connector_device = {
-	.name                   = "connector-dvi",
-	.id                     = 0,
-	.dev.platform_data      = &omap3stalker_dvi_connector_pdata,
-};
-
-static struct encoder_tfp410_platform_data omap3stalker_tfp410_pdata = {
-	.name                   = "tfp410.0",
-	.source                 = "dpi.0",
-	.data_lines             = 24,
-	.power_down_gpio        = IGEP2_GPIO_DVI_PUP,
-};
-
-static struct platform_device omap3stalker_tfp410_device = {
-	.name                   = "tfp410",
-	.id                     = 0,
-	.dev.platform_data      = &omap3stalker_tfp410_pdata,
-};
-
-static struct omap_dss_board_info igep2_dss_data = {
-	.default_display_name = "dvi",
-};
-
-static struct platform_device *igep_devices[] __initdata = {
-	&igep_vwlan_device,
-	&omap3stalker_tfp410_device,
-	&omap3stalker_dvi_connector_device,
-};
-
 static int igep2_keymap[] = {
 	KEY(0, 0, KEY_LEFT),
 	KEY(0, 1, KEY_RIGHT),
@@ -663,7 +628,8 @@ static void __init igep_init(void)
 
 	/* Register I2C busses and drivers */
 	igep_i2c_init();
-	platform_add_devices(igep_devices, ARRAY_SIZE(igep_devices));
+	platform_device_register(&igep_vwlan_device);
+	omap3_igep2_display_init_of();
 	omap_serial_init();
 	omap_sdrc_init(m65kxxxxam_sdrc_params,
 				  m65kxxxxam_sdrc_params);
@@ -681,7 +647,6 @@ static void __init igep_init(void)
 	igep_wlan_bt_init();
 
 	if (machine_is_igep0020()) {
-		omap_display_init(&igep2_dss_data);
 		igep2_init_smsc911x();
 		usbhs_init_phys(igep2_phy_data, ARRAY_SIZE(igep2_phy_data));
 		usbhs_init(&igep2_usbhs_bdata);
-- 
cgit 


From ace1e3ec4a2540c783e65884bb7be9cd45a0a295 Mon Sep 17 00:00:00 2001
From: Lokesh Vutla <lokeshvutla@ti.com>
Date: Thu, 29 Aug 2013 18:22:10 +0530
Subject: ARM: AM33xx: hwmod: Add RNG module data

Add RNG hwmod data for AM33xx SoC.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/omap_hwmod_33xx_data.c | 36 ++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
index dd3aa31c313b..a166e5394113 100644
--- a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
@@ -2493,6 +2493,41 @@ static struct omap_hwmod_ocp_if am33xx_l3_main__aes0 = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
+/* rng */
+static struct omap_hwmod_class_sysconfig am33xx_rng_sysc = {
+	.rev_offs	= 0x1fe0,
+	.sysc_offs	= 0x1fe4,
+	.sysc_flags	= SYSC_HAS_AUTOIDLE | SYSC_HAS_SIDLEMODE,
+	.idlemodes	= SIDLE_FORCE | SIDLE_NO,
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class am33xx_rng_hwmod_class = {
+	.name		= "rng",
+	.sysc		= &am33xx_rng_sysc,
+};
+
+static struct omap_hwmod am33xx_rng_hwmod = {
+	.name		= "rng",
+	.class		= &am33xx_rng_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.flags		= HWMOD_SWSUP_SIDLE,
+	.main_clk	= "rng_fck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_RNG_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+static struct omap_hwmod_ocp_if am33xx_l4_per__rng = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_rng_hwmod,
+	.clk		= "rng_fck",
+	.user		= OCP_USER_MPU,
+};
+
 static struct omap_hwmod_ocp_if *am33xx_hwmod_ocp_ifs[] __initdata = {
 	&am33xx_l3_main__emif,
 	&am33xx_mpu__l3_main,
@@ -2572,6 +2607,7 @@ static struct omap_hwmod_ocp_if *am33xx_hwmod_ocp_ifs[] __initdata = {
 	&am33xx_cpgmac0__mdio,
 	&am33xx_l3_main__sha0,
 	&am33xx_l3_main__aes0,
+	&am33xx_l4_per__rng,
 	NULL,
 };
 
-- 
cgit 


From 18edf4512cfa3e3662bdbdfc5f11c2eb20721734 Mon Sep 17 00:00:00 2001
From: Seungwon Jeon <tgih.jun@samsung.com>
Date: Wed, 9 Oct 2013 09:12:21 -0600
Subject: PCI: designware: Add header guards

Add header guards to prevent redundant inclusion.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/host/pcie-designware.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/pci/host/pcie-designware.h b/drivers/pci/host/pcie-designware.h
index faccbbf31907..d87fbaeffe70 100644
--- a/drivers/pci/host/pcie-designware.h
+++ b/drivers/pci/host/pcie-designware.h
@@ -11,6 +11,9 @@
  * published by the Free Software Foundation.
  */
 
+#ifndef _PCIE_DESIGNWARE_H
+#define _PCIE_DESIGNWARE_H
+
 struct pcie_port_info {
 	u32		cfg0_size;
 	u32		cfg1_size;
@@ -77,3 +80,5 @@ int dw_pcie_host_init(struct pcie_port *pp);
 int dw_pcie_setup(int nr, struct pci_sys_data *sys);
 struct pci_bus *dw_pcie_scan_bus(int nr, struct pci_sys_data *sys);
 int dw_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
+
+#endif /* _PCIE_DESIGNWARE_H */
-- 
cgit 


From 73e408508bf6c76d8dc06f044f0e4703a1e27f14 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Wed, 9 Oct 2013 09:12:37 -0600
Subject: PCI: designware: Make dw_pcie_rd_own_conf(), etc., static

The following variables and functions are used only in pcie-designware.c,
so make them static:

  global_io_offset
  dw_pcie_rd_own_conf()
  dw_pcie_wr_own_conf()
  dw_pcie_setup()
  dw_pcie_scan_bus()
  dw_pcie_map_irq()

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
---
 drivers/pci/host/pcie-designware.c | 16 ++++++++--------
 drivers/pci/host/pcie-designware.h |  7 -------
 2 files changed, 8 insertions(+), 15 deletions(-)

diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index 896301788e9d..a2e69afabe6f 100644
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c
@@ -67,7 +67,7 @@
 
 static struct hw_pci dw_pci;
 
-unsigned long global_io_offset;
+static unsigned long global_io_offset;
 
 static inline struct pcie_port *sys_to_pcie(struct pci_sys_data *sys)
 {
@@ -118,8 +118,8 @@ static inline void dw_pcie_writel_rc(struct pcie_port *pp, u32 val, u32 reg)
 		writel(val, pp->dbi_base + reg);
 }
 
-int dw_pcie_rd_own_conf(struct pcie_port *pp, int where, int size,
-				u32 *val)
+static int dw_pcie_rd_own_conf(struct pcie_port *pp, int where, int size,
+			       u32 *val)
 {
 	int ret;
 
@@ -131,8 +131,8 @@ int dw_pcie_rd_own_conf(struct pcie_port *pp, int where, int size,
 	return ret;
 }
 
-int dw_pcie_wr_own_conf(struct pcie_port *pp, int where, int size,
-				u32 val)
+static int dw_pcie_wr_own_conf(struct pcie_port *pp, int where, int size,
+			       u32 val)
 {
 	int ret;
 
@@ -667,7 +667,7 @@ static struct pci_ops dw_pcie_ops = {
 	.write = dw_pcie_wr_conf,
 };
 
-int dw_pcie_setup(int nr, struct pci_sys_data *sys)
+static int dw_pcie_setup(int nr, struct pci_sys_data *sys)
 {
 	struct pcie_port *pp;
 
@@ -690,7 +690,7 @@ int dw_pcie_setup(int nr, struct pci_sys_data *sys)
 	return 1;
 }
 
-struct pci_bus *dw_pcie_scan_bus(int nr, struct pci_sys_data *sys)
+static struct pci_bus *dw_pcie_scan_bus(int nr, struct pci_sys_data *sys)
 {
 	struct pci_bus *bus;
 	struct pcie_port *pp = sys_to_pcie(sys);
@@ -707,7 +707,7 @@ struct pci_bus *dw_pcie_scan_bus(int nr, struct pci_sys_data *sys)
 	return bus;
 }
 
-int dw_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+static int dw_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	struct pcie_port *pp = sys_to_pcie(dev->bus->sysdata);
 
diff --git a/drivers/pci/host/pcie-designware.h b/drivers/pci/host/pcie-designware.h
index d87fbaeffe70..890c2ced1abd 100644
--- a/drivers/pci/host/pcie-designware.h
+++ b/drivers/pci/host/pcie-designware.h
@@ -66,19 +66,12 @@ struct pcie_host_ops {
 	void (*host_init)(struct pcie_port *pp);
 };
 
-extern unsigned long global_io_offset;
-
 int cfg_read(void __iomem *addr, int where, int size, u32 *val);
 int cfg_write(void __iomem *addr, int where, int size, u32 val);
-int dw_pcie_wr_own_conf(struct pcie_port *pp, int where, int size, u32 val);
-int dw_pcie_rd_own_conf(struct pcie_port *pp, int where, int size, u32 *val);
 void dw_handle_msi_irq(struct pcie_port *pp);
 void dw_pcie_msi_init(struct pcie_port *pp);
 int dw_pcie_link_up(struct pcie_port *pp);
 void dw_pcie_setup_rc(struct pcie_port *pp);
 int dw_pcie_host_init(struct pcie_port *pp);
-int dw_pcie_setup(int nr, struct pci_sys_data *sys);
-struct pci_bus *dw_pcie_scan_bus(int nr, struct pci_sys_data *sys);
-int dw_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
 
 #endif /* _PCIE_DESIGNWARE_H */
-- 
cgit 


From 904d0e7889933fb48d921c998fd1cabb3a9d6635 Mon Sep 17 00:00:00 2001
From: Pratyush Anand <pratyush.anand@st.com>
Date: Wed, 9 Oct 2013 21:32:12 +0900
Subject: PCI: designware: Add irq_create_mapping()

Without irq_create_mapping(), the correct IRQ number cannot be
provided.  In this case, it makes problems such as NULL dereference.
Thus, irq_create_mapping() should be added for MSI.

Suggested-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Pratyush Anand <pratyush.anand@st.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/host/pcie-designware.c | 25 +++++++++++++------------
 drivers/pci/host/pcie-designware.h |  2 +-
 2 files changed, 14 insertions(+), 13 deletions(-)

diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index a2e69afabe6f..1e1fea4d959b 100644
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c
@@ -157,7 +157,7 @@ static struct irq_chip dw_msi_irq_chip = {
 void dw_handle_msi_irq(struct pcie_port *pp)
 {
 	unsigned long val;
-	int i, pos;
+	int i, pos, irq;
 
 	for (i = 0; i < MAX_MSI_CTRLS; i++) {
 		dw_pcie_rd_own_conf(pp, PCIE_MSI_INTR0_STATUS + i * 12, 4,
@@ -165,8 +165,9 @@ void dw_handle_msi_irq(struct pcie_port *pp)
 		if (val) {
 			pos = 0;
 			while ((pos = find_next_bit(&val, 32, pos)) != 32) {
-				generic_handle_irq(pp->msi_irq_start
-					+ (i * 32) + pos);
+				irq = irq_find_mapping(pp->irq_domain,
+						i * 32 + pos);
+				generic_handle_irq(irq);
 				pos++;
 			}
 		}
@@ -237,9 +238,8 @@ static int assign_irq(int no_irqs, struct msi_desc *desc, int *pos)
 		}
 	}
 
-	irq = (pp->msi_irq_start + pos0);
-
-	if ((irq + no_irqs) > (pp->msi_irq_start + MAX_MSI_IRQS-1))
+	irq = irq_find_mapping(pp->irq_domain, pos0);
+	if (!irq)
 		goto no_valid_irq;
 
 	i = 0;
@@ -270,6 +270,7 @@ static void clear_irq(unsigned int irq)
 	struct irq_desc *desc;
 	struct msi_desc *msi;
 	struct pcie_port *pp;
+	struct irq_data *data = irq_get_irq_data(irq);
 
 	/* get the port structure */
 	desc = irq_to_desc(irq);
@@ -280,7 +281,7 @@ static void clear_irq(unsigned int irq)
 		return;
 	}
 
-	pos = irq - pp->msi_irq_start;
+	pos = data->hwirq;
 
 	irq_free_desc(irq);
 
@@ -371,8 +372,7 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
 	struct of_pci_range range;
 	struct of_pci_range_parser parser;
 	u32 val;
-
-	struct irq_domain *irq_domain;
+	int i;
 
 	if (of_pci_range_parser_init(&parser, np)) {
 		dev_err(pp->dev, "missing ranges property\n");
@@ -441,15 +441,16 @@ int __init dw_pcie_host_init(struct pcie_port *pp)
 	}
 
 	if (IS_ENABLED(CONFIG_PCI_MSI)) {
-		irq_domain = irq_domain_add_linear(pp->dev->of_node,
+		pp->irq_domain = irq_domain_add_linear(pp->dev->of_node,
 					MAX_MSI_IRQS, &msi_domain_ops,
 					&dw_pcie_msi_chip);
-		if (!irq_domain) {
+		if (!pp->irq_domain) {
 			dev_err(pp->dev, "irq domain init failed\n");
 			return -ENXIO;
 		}
 
-		pp->msi_irq_start = irq_find_mapping(irq_domain, 0);
+		for (i = 0; i < MAX_MSI_IRQS; i++)
+			irq_create_mapping(pp->irq_domain, i);
 	}
 
 	if (pp->ops->host_init)
diff --git a/drivers/pci/host/pcie-designware.h b/drivers/pci/host/pcie-designware.h
index 890c2ced1abd..c15379be2372 100644
--- a/drivers/pci/host/pcie-designware.h
+++ b/drivers/pci/host/pcie-designware.h
@@ -50,7 +50,7 @@ struct pcie_port {
 	u32			lanes;
 	struct pcie_host_ops	*ops;
 	int			msi_irq;
-	int			msi_irq_start;
+	struct irq_domain	*irq_domain;
 	unsigned long		msi_data;
 	DECLARE_BITMAP(msi_irq_in_use, MAX_MSI_IRQS);
 };
-- 
cgit 


From 312717f15ac7095c3ea98d487276781535ca7c0b Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Sun, 25 Aug 2013 18:29:51 -0500
Subject: c6x: use boot_command_line instead of private c6x_command_line

Save some pointless copying of the kernel command line and just use
boot_command_line instead.

Also remove default_command_line as it is not referenced anywhere, and
the DT code already handles the default command line.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Tested-by: Mark Salter <msalter@redhat.com>
Acked-by: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: linux-c6x-dev@linux-c6x.org
Reviewed-by: Grant Likely <grant.likely@linaro.org>
---
 arch/c6x/include/asm/setup.h  |  2 --
 arch/c6x/kernel/devicetree.c  |  2 +-
 arch/c6x/kernel/setup.c       | 11 +----------
 arch/c6x/kernel/vmlinux.lds.S |  6 ------
 4 files changed, 2 insertions(+), 19 deletions(-)

diff --git a/arch/c6x/include/asm/setup.h b/arch/c6x/include/asm/setup.h
index ecead15872a6..696804475f55 100644
--- a/arch/c6x/include/asm/setup.h
+++ b/arch/c6x/include/asm/setup.h
@@ -14,8 +14,6 @@
 #include <uapi/asm/setup.h>
 
 #ifndef __ASSEMBLY__
-extern char c6x_command_line[COMMAND_LINE_SIZE];
-
 extern int c6x_add_memory(phys_addr_t start, unsigned long size);
 
 extern unsigned long ram_start;
diff --git a/arch/c6x/kernel/devicetree.c b/arch/c6x/kernel/devicetree.c
index 9e15ab9199b2..5e8c838c1dde 100644
--- a/arch/c6x/kernel/devicetree.c
+++ b/arch/c6x/kernel/devicetree.c
@@ -24,7 +24,7 @@ void __init early_init_devtree(void *params)
 	 * device-tree, including the platform type, initrd location and
 	 * size and more ...
 	 */
-	of_scan_flat_dt(early_init_dt_scan_chosen, c6x_command_line);
+	of_scan_flat_dt(early_init_dt_scan_chosen, boot_command_line);
 
 	/* Scan memory nodes and rebuild MEMBLOCKs */
 	of_scan_flat_dt(early_init_dt_scan_root, NULL);
diff --git a/arch/c6x/kernel/setup.c b/arch/c6x/kernel/setup.c
index f4e72bd8c103..0e5a812907d9 100644
--- a/arch/c6x/kernel/setup.c
+++ b/arch/c6x/kernel/setup.c
@@ -68,13 +68,6 @@ unsigned long ram_end;
 static unsigned long dma_start __initdata;
 static unsigned long dma_size __initdata;
 
-char c6x_command_line[COMMAND_LINE_SIZE];
-
-#if defined(CONFIG_CMDLINE_BOOL)
-static const char default_command_line[COMMAND_LINE_SIZE] __section(.cmdline) =
-	CONFIG_CMDLINE;
-#endif
-
 struct cpuinfo_c6x {
 	const char *cpu_name;
 	const char *cpu_voltage;
@@ -296,8 +289,6 @@ notrace void __init machine_init(unsigned long dt_ptr)
 	/* Do some early initialization based on the flat device tree */
 	early_init_devtree(fdt);
 
-	/* parse_early_param needs a boot_command_line */
-	strlcpy(boot_command_line, c6x_command_line, COMMAND_LINE_SIZE);
 	parse_early_param();
 }
 
@@ -309,7 +300,7 @@ void __init setup_arch(char **cmdline_p)
 	printk(KERN_INFO "Initializing kernel\n");
 
 	/* Initialize command line */
-	*cmdline_p = c6x_command_line;
+	*cmdline_p = boot_command_line;
 
 	memory_end = ram_end;
 	memory_end &= ~(PAGE_SIZE - 1);
diff --git a/arch/c6x/kernel/vmlinux.lds.S b/arch/c6x/kernel/vmlinux.lds.S
index 279d80725128..5a6e141d1641 100644
--- a/arch/c6x/kernel/vmlinux.lds.S
+++ b/arch/c6x/kernel/vmlinux.lds.S
@@ -37,12 +37,6 @@ SECTIONS
 		_vectors_end = .;
 	}
 
-	. = ALIGN(0x1000);
-	.cmdline :
-	{
-		*(.cmdline)
-	}
-
 	/*
 	 * This section contains data which may be shared with other
 	 * cores. It needs to be a fixed offset from PAGE_OFFSET
-- 
cgit 


From bbf28b505ac2dd923b9051ca5031cf87bf7c40cc Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Mon, 26 Aug 2013 11:28:50 -0500
Subject: openrisc: use boot_command_line instead of private cmd_line

Save some pointless copying of the kernel command line and just use
boot_command_line instead. The DT code already handles CONFIG_CMDLINE,
so a separate copy is not needed.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: linux@lists.openrisc.net
Reviewed-by: Grant Likely <grant.likely@linaro.org>
---
 arch/openrisc/kernel/prom.c  | 7 +------
 arch/openrisc/kernel/setup.c | 4 +---
 2 files changed, 2 insertions(+), 9 deletions(-)

diff --git a/arch/openrisc/kernel/prom.c b/arch/openrisc/kernel/prom.c
index a63e76872f84..bf3fd05703c3 100644
--- a/arch/openrisc/kernel/prom.c
+++ b/arch/openrisc/kernel/prom.c
@@ -47,8 +47,6 @@
 #include <asm/sections.h>
 #include <asm/setup.h>
 
-extern char cmd_line[COMMAND_LINE_SIZE];
-
 void __init early_init_dt_add_memory_arch(u64 base, u64 size)
 {
 	size &= PAGE_MASK;
@@ -67,15 +65,12 @@ void __init early_init_devtree(void *params)
 	 * device-tree, including the platform type, initrd location and
 	 * size, TCE reserve, and more ...
 	 */
-	of_scan_flat_dt(early_init_dt_scan_chosen, cmd_line);
+	of_scan_flat_dt(early_init_dt_scan_chosen, boot_command_line);
 
 	/* Scan memory nodes and rebuild MEMBLOCKs */
 	of_scan_flat_dt(early_init_dt_scan_root, NULL);
 	of_scan_flat_dt(early_init_dt_scan_memory, NULL);
 
-	/* Save command line for /proc/cmdline and then parse parameters */
-	strlcpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE);
-
 	memblock_allow_resize();
 
 	/* We must copy the flattend device tree from init memory to regular
diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c
index d7359ffbcbdd..719c5c8895c4 100644
--- a/arch/openrisc/kernel/setup.c
+++ b/arch/openrisc/kernel/setup.c
@@ -50,8 +50,6 @@
 
 #include "vmlinux.h"
 
-char __initdata cmd_line[COMMAND_LINE_SIZE] = CONFIG_CMDLINE;
-
 static unsigned long __init setup_memory(void)
 {
 	unsigned long bootmap_size;
@@ -316,7 +314,7 @@ void __init setup_arch(char **cmdline_p)
 		conswitchp = &dummy_con;
 #endif
 
-	*cmdline_p = cmd_line;
+	*cmdline_p = boot_command_line;
 
 	printk(KERN_INFO "OpenRISC Linux -- http://openrisc.net\n");
 }
-- 
cgit 


From a8bf7527a2e17ccf1366e67f6ac728327ca34c40 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Mon, 26 Aug 2013 11:22:45 -0500
Subject: of: create unflatten_and_copy_device_tree

Several architectures using DT support built-in dtb's in the init
section. These platforms need to copy the dtb from init since the
strings are referenced after unflattening. Every arch has their own
copying routine which do the same thing. Create a common function,
unflatten_and_copy_device_tree, to copy the dtb when unflattening the
dtb.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
---
 drivers/of/fdt.c       | 24 ++++++++++++++++++++++++
 include/linux/of_fdt.h |  2 ++
 2 files changed, 26 insertions(+)

diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 229dd9d69e18..51776166d2b0 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -802,6 +802,30 @@ void __init unflatten_device_tree(void)
 	of_alias_scan(early_init_dt_alloc_memory_arch);
 }
 
+/**
+ * unflatten_and_copy_device_tree - copy and create tree of device_nodes from flat blob
+ *
+ * Copies and unflattens the device-tree passed by the firmware, creating the
+ * tree of struct device_node. It also fills the "name" and "type"
+ * pointers of the nodes so the normal device-tree walking functions
+ * can be used. This should only be used when the FDT memory has not been
+ * reserved such is the case when the FDT is built-in to the kernel init
+ * section. If the FDT memory is reserved already then unflatten_device_tree
+ * should be used instead.
+ */
+void __init unflatten_and_copy_device_tree(void)
+{
+	int size = __be32_to_cpu(initial_boot_params->totalsize);
+	void *dt = early_init_dt_alloc_memory_arch(size,
+		__alignof__(struct boot_param_header));
+
+	if (dt) {
+		memcpy(dt, initial_boot_params, size);
+		initial_boot_params = dt;
+	}
+	unflatten_device_tree();
+}
+
 #endif /* CONFIG_OF_EARLY_FLATTREE */
 
 /* Feed entire flattened device tree into the random pool */
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index a478c62a2aab..58c28a8cc257 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -118,9 +118,11 @@ extern int early_init_dt_scan_root(unsigned long node, const char *uname,
 
 /* Other Prototypes */
 extern void unflatten_device_tree(void);
+extern void unflatten_and_copy_device_tree(void);
 extern void early_init_devtree(void *);
 #else /* CONFIG_OF_FLATTREE */
 static inline void unflatten_device_tree(void) {}
+static inline void unflatten_and_copy_device_tree(void) {}
 #endif /* CONFIG_OF_FLATTREE */
 
 #endif /* __ASSEMBLY__ */
-- 
cgit 


From 1efc959e0b28942d69d3084ecd4e9bde3beb9866 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Mon, 26 Aug 2013 11:23:27 -0500
Subject: arc: use unflatten_and_copy_device_tree

Use the common unflatten_and_copy_device_tree to copy the built-in FDT
out of init section.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
---
 arch/arc/include/asm/mach_desc.h |  1 -
 arch/arc/kernel/devtree.c        | 15 ---------------
 arch/arc/kernel/setup.c          |  3 +--
 3 files changed, 1 insertion(+), 18 deletions(-)

diff --git a/arch/arc/include/asm/mach_desc.h b/arch/arc/include/asm/mach_desc.h
index 9998dc846ebb..d3e9c0a05be8 100644
--- a/arch/arc/include/asm/mach_desc.h
+++ b/arch/arc/include/asm/mach_desc.h
@@ -82,6 +82,5 @@ __attribute__((__section__(".arch.info.init"))) = {	\
 };
 
 extern struct machine_desc *setup_machine_fdt(void *dt);
-extern void __init copy_devtree(void);
 
 #endif
diff --git a/arch/arc/kernel/devtree.c b/arch/arc/kernel/devtree.c
index 2340af0e1d6f..eeb613aa44ff 100644
--- a/arch/arc/kernel/devtree.c
+++ b/arch/arc/kernel/devtree.c
@@ -100,18 +100,3 @@ struct machine_desc * __init setup_machine_fdt(void *dt)
 
 	return mdesc_best;
 }
-
-/*
- * Copy the flattened DT out of .init since unflattening doesn't copy strings
- * and the normal DT APIs refs them from orig flat DT
- */
-void __init copy_devtree(void)
-{
-	void *alloc = early_init_dt_alloc_memory_arch(
-			be32_to_cpu(initial_boot_params->totalsize), 64);
-	if (alloc) {
-		memcpy(alloc, initial_boot_params,
-				be32_to_cpu(initial_boot_params->totalsize));
-		initial_boot_params = alloc;
-	}
-}
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index 2c68bc7e6a78..710bf895dc2c 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -346,8 +346,7 @@ void __init setup_arch(char **cmdline_p)
 	setup_arch_memory();
 
 	/* copy flat DT out of .init and then unflatten it */
-	copy_devtree();
-	unflatten_device_tree();
+	unflatten_and_copy_device_tree();
 
 	/* Can be issue if someone passes cmd line arg "ro"
 	 * But that is unlikely so keeping it as it is
-- 
cgit 


From 3486892f998fea5b4f1a0a4d093f09b7d0024696 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Mon, 26 Aug 2013 11:23:50 -0500
Subject: openrisc: use unflatten_and_copy_device_tree

Use the common unflatten_and_copy_device_tree to copy the built-in FDT
out of init section. This moves the copy later in the boot, but there
do not appear to be any references to strings in the FDT before the copy.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: linux@lists.openrisc.net
---
 arch/openrisc/kernel/prom.c  | 13 -------------
 arch/openrisc/kernel/setup.c |  2 +-
 2 files changed, 1 insertion(+), 14 deletions(-)

diff --git a/arch/openrisc/kernel/prom.c b/arch/openrisc/kernel/prom.c
index bf3fd05703c3..3b94972e52b2 100644
--- a/arch/openrisc/kernel/prom.c
+++ b/arch/openrisc/kernel/prom.c
@@ -55,8 +55,6 @@ void __init early_init_dt_add_memory_arch(u64 base, u64 size)
 
 void __init early_init_devtree(void *params)
 {
-	void *alloc;
-
 	/* Setup flat device-tree pointer */
 	initial_boot_params = params;
 
@@ -72,17 +70,6 @@ void __init early_init_devtree(void *params)
 	of_scan_flat_dt(early_init_dt_scan_memory, NULL);
 
 	memblock_allow_resize();
-
-	/* We must copy the flattend device tree from init memory to regular
-	 * memory because the device tree references the strings in it
-	 * directly.
-	 */
-
-	alloc = __va(memblock_alloc(initial_boot_params->totalsize, PAGE_SIZE));
-
-	memcpy(alloc, initial_boot_params, initial_boot_params->totalsize);
-
-	initial_boot_params = alloc;
 }
 
 #ifdef CONFIG_BLK_DEV_INITRD
diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c
index 719c5c8895c4..09a769b69572 100644
--- a/arch/openrisc/kernel/setup.c
+++ b/arch/openrisc/kernel/setup.c
@@ -283,7 +283,7 @@ void __init setup_arch(char **cmdline_p)
 {
 	unsigned long max_low_pfn;
 
-	unflatten_device_tree();
+	unflatten_and_copy_device_tree();
 
 	setup_cpuinfo();
 
-- 
cgit 


From 21c561bda17a67afe923866cf88653637abf6e7a Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Wed, 28 Aug 2013 09:57:57 -0500
Subject: x86: use unflatten_and_copy_device_tree

Use the common unflatten_and_copy_device_tree to copy the built-in FDT
out of init section.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
---
 arch/x86/kernel/devicetree.c | 23 ++++++++---------------
 1 file changed, 8 insertions(+), 15 deletions(-)

diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 376dc7873447..0db805c4b9e8 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -230,7 +230,7 @@ static void __init dtb_apic_setup(void)
 static void __init x86_flattree_get_config(void)
 {
 	u32 size, map_len;
-	void *new_dtb;
+	struct boot_param_header *dt;
 
 	if (!initial_dtb)
 		return;
@@ -238,24 +238,17 @@ static void __init x86_flattree_get_config(void)
 	map_len = max(PAGE_SIZE - (initial_dtb & ~PAGE_MASK),
 			(u64)sizeof(struct boot_param_header));
 
-	initial_boot_params = early_memremap(initial_dtb, map_len);
-	size = be32_to_cpu(initial_boot_params->totalsize);
+	dt = early_memremap(initial_dtb, map_len);
+	size = be32_to_cpu(dt->totalsize);
 	if (map_len < size) {
-		early_iounmap(initial_boot_params, map_len);
-		initial_boot_params = early_memremap(initial_dtb, size);
+		early_iounmap(dt, map_len);
+		dt = early_memremap(initial_dtb, size);
 		map_len = size;
 	}
 
-	new_dtb = alloc_bootmem(size);
-	memcpy(new_dtb, initial_boot_params, size);
-	early_iounmap(initial_boot_params, map_len);
-
-	initial_boot_params = new_dtb;
-
-	/* root level address cells */
-	of_scan_flat_dt(early_init_dt_scan_root, NULL);
-
-	unflatten_device_tree();
+	initial_boot_params = dt;
+	unflatten_and_copy_device_tree();
+	early_iounmap(dt, map_len);
 }
 #else
 static inline void x86_flattree_get_config(void) { }
-- 
cgit 


From 3104021c12747df63843fedf3ceb6a54410e2c18 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Mon, 26 Aug 2013 11:24:11 -0500
Subject: xtensa: use unflatten_and_copy_device_tree

Use the common unflatten_and_copy_device_tree to copy the built-in FDT
out of init section.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Chris Zankel <chris@zankel.net>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Cc: linux-xtensa@linux-xtensa.org
Acked-by: Grant Likely <grant.likely@linaro.org>
---
 arch/xtensa/kernel/setup.c | 19 +------------------
 1 file changed, 1 insertion(+), 18 deletions(-)

diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
index 946fb8d06c8b..fc31ec1e977d 100644
--- a/arch/xtensa/kernel/setup.c
+++ b/arch/xtensa/kernel/setup.c
@@ -21,11 +21,8 @@
 #include <linux/screen_info.h>
 #include <linux/bootmem.h>
 #include <linux/kernel.h>
-
-#ifdef CONFIG_OF
 #include <linux/of_fdt.h>
 #include <linux/of_platform.h>
-#endif
 
 #if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_DUMMY_CONSOLE)
 # include <linux/console.h>
@@ -252,17 +249,6 @@ void __init early_init_devtree(void *params)
 		of_scan_flat_dt(early_init_dt_scan_memory, NULL);
 }
 
-static void __init copy_devtree(void)
-{
-	void *alloc = early_init_dt_alloc_memory_arch(
-			be32_to_cpu(initial_boot_params->totalsize), 8);
-	if (alloc) {
-		memcpy(alloc, initial_boot_params,
-				be32_to_cpu(initial_boot_params->totalsize));
-		initial_boot_params = alloc;
-	}
-}
-
 static int __init xtensa_device_probe(void)
 {
 	of_platform_populate(NULL, NULL, NULL, NULL);
@@ -525,10 +511,7 @@ void __init setup_arch(char **cmdline_p)
 
 	bootmem_init();
 
-#ifdef CONFIG_OF
-	copy_devtree();
-	unflatten_device_tree();
-#endif
+	unflatten_and_copy_device_tree();
 
 	platform_setup(cmdline_p);
 
-- 
cgit 


From 08854f41809293b283b96c642562cd4119d6b5db Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Tue, 27 Aug 2013 21:39:46 -0500
Subject: metag: use unflatten_and_copy_device_tree

Use the common unflatten_and_copy_device_tree to copy the built-in FDT
out of init section.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: James Hogan <james.hogan@imgtec.com>
---
 arch/metag/kernel/devtree.c | 16 ----------------
 arch/metag/kernel/setup.c   |  4 +---
 2 files changed, 1 insertion(+), 19 deletions(-)

diff --git a/arch/metag/kernel/devtree.c b/arch/metag/kernel/devtree.c
index 7cd02529636e..049af569cd49 100644
--- a/arch/metag/kernel/devtree.c
+++ b/arch/metag/kernel/devtree.c
@@ -94,21 +94,5 @@ struct machine_desc * __init setup_machine_fdt(void *dt)
 	of_scan_flat_dt(early_init_dt_scan_chosen, boot_command_line);
 
 	return mdesc_best;
-}
 
-/**
- * copy_fdt - Copy device tree into non-init memory.
- *
- * We must copy the flattened device tree blob into non-init memory because the
- * unflattened device tree will reference the strings in it directly.
- */
-void __init copy_fdt(void)
-{
-	void *alloc = early_init_dt_alloc_memory_arch(
-			be32_to_cpu(initial_boot_params->totalsize), 0x40);
-	if (alloc) {
-		memcpy(alloc, initial_boot_params,
-		       be32_to_cpu(initial_boot_params->totalsize));
-		initial_boot_params = alloc;
-	}
 }
diff --git a/arch/metag/kernel/setup.c b/arch/metag/kernel/setup.c
index c396cd0b425f..2c697d343088 100644
--- a/arch/metag/kernel/setup.c
+++ b/arch/metag/kernel/setup.c
@@ -408,9 +408,7 @@ void __init setup_arch(char **cmdline_p)
 	cpu_2_hwthread_id[smp_processor_id()] = hard_processor_id();
 	hwthread_id_2_cpu[hard_processor_id()] = smp_processor_id();
 
-	/* Copy device tree blob into non-init memory before unflattening */
-	copy_fdt();
-	unflatten_device_tree();
+	unflatten_and_copy_device_tree();
 
 #ifdef CONFIG_SMP
 	smp_init_cpus();
-- 
cgit 


From 0288ffcbfdf9b8656e7320c24caa1e4c1d498287 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Mon, 26 Aug 2013 09:47:40 -0500
Subject: of: Introduce common early_init_dt_scan

Most architectures scan the all the same items early in the FDT and none
are really architecture specific. Create a common early_init_dt_scan to
unify the early scan of root, memory, and chosen nodes in the flattened
DT.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
---
 drivers/of/fdt.c       | 26 ++++++++++++++++++++++++++
 include/linux/of_fdt.h |  2 ++
 2 files changed, 28 insertions(+)

diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 51776166d2b0..bfbfda543768 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -785,6 +785,32 @@ void * __init __weak early_init_dt_alloc_memory_arch(u64 size, u64 align)
 }
 #endif
 
+bool __init early_init_dt_scan(void *params)
+{
+	if (!params)
+		return false;
+
+	/* Setup flat device-tree pointer */
+	initial_boot_params = params;
+
+	/* check device tree validity */
+	if (be32_to_cpu(initial_boot_params->magic) != OF_DT_HEADER) {
+		initial_boot_params = NULL;
+		return false;
+	}
+
+	/* Retrieve various information from the /chosen node */
+	of_scan_flat_dt(early_init_dt_scan_chosen, boot_command_line);
+
+	/* Initialize {size,address}-cells info */
+	of_scan_flat_dt(early_init_dt_scan_root, NULL);
+
+	/* Setup memory, calling early_init_dt_add_memory_arch */
+	of_scan_flat_dt(early_init_dt_scan_memory, NULL);
+
+	return true;
+}
+
 /**
  * unflatten_device_tree - create tree of device_nodes from flat blob
  *
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index 58c28a8cc257..73e16511134e 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -116,6 +116,8 @@ extern void early_init_dt_setup_initrd_arch(u64 start, u64 end);
 extern int early_init_dt_scan_root(unsigned long node, const char *uname,
 				   int depth, void *data);
 
+extern bool early_init_dt_scan(void *params);
+
 /* Other Prototypes */
 extern void unflatten_device_tree(void);
 extern void unflatten_and_copy_device_tree(void);
-- 
cgit 


From ad81fcb53033be98ab29c6cfb6ef0249a8e2ffaa Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Mon, 26 Aug 2013 10:12:22 -0500
Subject: arc: use early_init_dt_scan

Convert arc to use new early_init_dt_scan function.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/kernel/devtree.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/arch/arc/kernel/devtree.c b/arch/arc/kernel/devtree.c
index eeb613aa44ff..1ab6f3569f60 100644
--- a/arch/arc/kernel/devtree.c
+++ b/arch/arc/kernel/devtree.c
@@ -27,7 +27,6 @@
  */
 struct machine_desc * __init setup_machine_fdt(void *dt)
 {
-	struct boot_param_header *devtree = dt;
 	struct machine_desc *mdesc = NULL, *mdesc_best = NULL;
 	unsigned int score, mdesc_score = ~1;
 	unsigned long dt_root;
@@ -36,11 +35,9 @@ struct machine_desc * __init setup_machine_fdt(void *dt)
 	char manufacturer[16];
 	unsigned long len;
 
-	/* check device tree validity */
-	if (be32_to_cpu(devtree->magic) != OF_DT_HEADER)
+	if (!early_init_dt_scan(dt))
 		return NULL;
 
-	initial_boot_params = devtree;
 	dt_root = of_get_flat_dt_root();
 
 	/*
@@ -85,15 +82,6 @@ struct machine_desc * __init setup_machine_fdt(void *dt)
 
 	pr_info("Board \"%s\" from %s (Manufacturer)\n", model, manufacturer);
 
-	/* Retrieve various information from the /chosen node */
-	of_scan_flat_dt(early_init_dt_scan_chosen, boot_command_line);
-
-	/* Initialize {size,address}-cells info */
-	of_scan_flat_dt(early_init_dt_scan_root, NULL);
-
-	/* Setup memory, calling early_init_dt_add_memory_arch */
-	of_scan_flat_dt(early_init_dt_scan_memory, NULL);
-
 	clk = of_get_flat_dt_prop(dt_root, "clock-frequency", &len);
 	if (clk)
 		arc_set_core_freq(of_read_ulong(clk, len/4));
-- 
cgit 


From 56dc1f474add364b07254ad9690f4e244ca65ef4 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Mon, 26 Aug 2013 10:13:01 -0500
Subject: arm: use early_init_dt_scan

Convert arm to use new early_init_dt_scan function.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
---
 arch/arm/kernel/devtree.c | 16 +---------------
 1 file changed, 1 insertion(+), 15 deletions(-)

diff --git a/arch/arm/kernel/devtree.c b/arch/arm/kernel/devtree.c
index f35906b3d8c9..e7ce175b99e3 100644
--- a/arch/arm/kernel/devtree.c
+++ b/arch/arm/kernel/devtree.c
@@ -183,7 +183,6 @@ bool arch_match_cpu_phys_id(int cpu, u64 phys_id)
  */
 const struct machine_desc * __init setup_machine_fdt(unsigned int dt_phys)
 {
-	struct boot_param_header *devtree;
 	const struct machine_desc *mdesc, *mdesc_best = NULL;
 	unsigned int score, mdesc_score = ~1;
 	unsigned long dt_root;
@@ -196,17 +195,11 @@ const struct machine_desc * __init setup_machine_fdt(unsigned int dt_phys)
 	mdesc_best = &__mach_desc_GENERIC_DT;
 #endif
 
-	if (!dt_phys)
+	if (!dt_phys || !early_init_dt_scan(phys_to_virt(dt_phys)))
 		return NULL;
 
-	devtree = phys_to_virt(dt_phys);
-
-	/* check device tree validity */
-	if (be32_to_cpu(devtree->magic) != OF_DT_HEADER)
-		return NULL;
 
 	/* Search the mdescs for the 'best' compatible value match */
-	initial_boot_params = devtree;
 	dt_root = of_get_flat_dt_root();
 	for_each_machine_desc(mdesc) {
 		score = of_flat_dt_match(dt_root, mdesc->dt_compat);
@@ -240,13 +233,6 @@ const struct machine_desc * __init setup_machine_fdt(unsigned int dt_phys)
 		model = "<unknown>";
 	pr_info("Machine: %s, model: %s\n", mdesc_best->name, model);
 
-	/* Retrieve various information from the /chosen node */
-	of_scan_flat_dt(early_init_dt_scan_chosen, boot_command_line);
-	/* Initialize {size,address}-cells info */
-	of_scan_flat_dt(early_init_dt_scan_root, NULL);
-	/* Setup memory, calling early_init_dt_add_memory_arch */
-	of_scan_flat_dt(early_init_dt_scan_memory, NULL);
-
 	/* Change machine number to match the mdesc we're using */
 	__machine_arch_type = mdesc_best->nr;
 
-- 
cgit 


From d5189cc57b1d231b6dc745de6b68881901d0c5c4 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Mon, 26 Aug 2013 10:14:32 -0500
Subject: arm64: use early_init_dt_scan

Convert arm64 to use new early_init_dt_scan function.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
---
 arch/arm64/kernel/setup.c | 31 +++----------------------------
 1 file changed, 3 insertions(+), 28 deletions(-)

diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 055cfb80e05c..4a5f6243ade2 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -124,37 +124,19 @@ static void __init setup_processor(void)
 
 static void __init setup_machine_fdt(phys_addr_t dt_phys)
 {
-	struct boot_param_header *devtree;
 	unsigned long dt_root;
 
-	/* Check we have a non-NULL DT pointer */
-	if (!dt_phys) {
-		early_print("\n"
-			"Error: NULL or invalid device tree blob\n"
-			"The dtb must be 8-byte aligned and passed in the first 512MB of memory\n"
-			"\nPlease check your bootloader.\n");
-
-		while (true)
-			cpu_relax();
-
-	}
-
-	devtree = phys_to_virt(dt_phys);
-
-	/* Check device tree validity */
-	if (be32_to_cpu(devtree->magic) != OF_DT_HEADER) {
+	if (!dt_phys || !early_init_dt_scan(phys_to_virt(dt_phys))) {
 		early_print("\n"
 			"Error: invalid device tree blob at physical address 0x%p (virtual address 0x%p)\n"
-			"Expected 0x%x, found 0x%x\n"
+			"The dtb must be 8-byte aligned and passed in the first 512MB of memory\n"
 			"\nPlease check your bootloader.\n",
-			dt_phys, devtree, OF_DT_HEADER,
-			be32_to_cpu(devtree->magic));
+			dt_phys, phys_to_virt(dt_phys));
 
 		while (true)
 			cpu_relax();
 	}
 
-	initial_boot_params = devtree;
 	dt_root = of_get_flat_dt_root();
 
 	machine_name = of_get_flat_dt_prop(dt_root, "model", NULL);
@@ -163,13 +145,6 @@ static void __init setup_machine_fdt(phys_addr_t dt_phys)
 	if (!machine_name)
 		machine_name = "<unknown>";
 	pr_info("Machine: %s\n", machine_name);
-
-	/* Retrieve various information from the /chosen node */
-	of_scan_flat_dt(early_init_dt_scan_chosen, boot_command_line);
-	/* Initialize {size,address}-cells info */
-	of_scan_flat_dt(early_init_dt_scan_root, NULL);
-	/* Setup memory, calling early_init_dt_add_memory_arch */
-	of_scan_flat_dt(early_init_dt_scan_memory, NULL);
 }
 
 void __init early_init_dt_add_memory_arch(u64 base, u64 size)
-- 
cgit 


From a8e44636c66d90d177fcdf8e8cfc36747074a4ed Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Mon, 26 Aug 2013 10:18:20 -0500
Subject: c6x: use early_init_dt_scan

Convert c6x to use new early_init_dt_scan function.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: linux-c6x-dev@linux-c6x.org
---
 arch/c6x/kernel/devicetree.c | 19 -------------------
 arch/c6x/kernel/setup.c      |  2 +-
 2 files changed, 1 insertion(+), 20 deletions(-)

diff --git a/arch/c6x/kernel/devicetree.c b/arch/c6x/kernel/devicetree.c
index 5e8c838c1dde..d28a92fc0c52 100644
--- a/arch/c6x/kernel/devicetree.c
+++ b/arch/c6x/kernel/devicetree.c
@@ -10,28 +10,9 @@
  *
  */
 #include <linux/init.h>
-#include <linux/of.h>
-#include <linux/of_fdt.h>
 #include <linux/initrd.h>
 #include <linux/memblock.h>
 
-void __init early_init_devtree(void *params)
-{
-	/* Setup flat device-tree pointer */
-	initial_boot_params = params;
-
-	/* Retrieve various informations from the /chosen node of the
-	 * device-tree, including the platform type, initrd location and
-	 * size and more ...
-	 */
-	of_scan_flat_dt(early_init_dt_scan_chosen, boot_command_line);
-
-	/* Scan memory nodes and rebuild MEMBLOCKs */
-	of_scan_flat_dt(early_init_dt_scan_root, NULL);
-	of_scan_flat_dt(early_init_dt_scan_memory, NULL);
-}
-
-
 #ifdef CONFIG_BLK_DEV_INITRD
 void __init early_init_dt_setup_initrd_arch(u64 start, u64 end)
 {
diff --git a/arch/c6x/kernel/setup.c b/arch/c6x/kernel/setup.c
index 0e5a812907d9..731db4b9014d 100644
--- a/arch/c6x/kernel/setup.c
+++ b/arch/c6x/kernel/setup.c
@@ -287,7 +287,7 @@ notrace void __init machine_init(unsigned long dt_ptr)
 		fdt = dtb;
 
 	/* Do some early initialization based on the flat device tree */
-	early_init_devtree(fdt);
+	early_init_dt_scan(fdt);
 
 	parse_early_param();
 }
-- 
cgit 


From e5d659935e8aa4ee8d72b1cce9ad6d6f0213909e Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Wed, 25 Sep 2013 15:46:14 -0500
Subject: metag: use early_init_dt_scan

Convert metag to use new early_init_dt_scan function.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: James Hogan <james.hogan@imgtec.com>
---
 arch/metag/kernel/devtree.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/arch/metag/kernel/devtree.c b/arch/metag/kernel/devtree.c
index 049af569cd49..68c2fee788c8 100644
--- a/arch/metag/kernel/devtree.c
+++ b/arch/metag/kernel/devtree.c
@@ -43,18 +43,16 @@ void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
  */
 struct machine_desc * __init setup_machine_fdt(void *dt)
 {
-	struct boot_param_header *devtree = dt;
 	struct machine_desc *mdesc, *mdesc_best = NULL;
 	unsigned int score, mdesc_score = ~1;
 	unsigned long dt_root;
 	const char *model;
 
 	/* check device tree validity */
-	if (be32_to_cpu(devtree->magic) != OF_DT_HEADER)
+	if (!early_init_dt_scan(dt))
 		return NULL;
 
 	/* Search the mdescs for the 'best' compatible value match */
-	initial_boot_params = devtree;
 	dt_root = of_get_flat_dt_root();
 
 	for_each_machine_desc(mdesc) {
@@ -90,9 +88,6 @@ struct machine_desc * __init setup_machine_fdt(void *dt)
 		model = "<unknown>";
 	pr_info("Machine: %s, model: %s\n", mdesc_best->name, model);
 
-	/* Retrieve various information from the /chosen node */
-	of_scan_flat_dt(early_init_dt_scan_chosen, boot_command_line);
-
 	return mdesc_best;
 
 }
-- 
cgit 


From dc0b433526773c70a030478212f57c3f402681ae Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Mon, 26 Aug 2013 10:19:07 -0500
Subject: microblaze: use early_init_dt_scan

Convert microblaze to use new early_init_dt_scan function.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Tested-by: Michal Simek <monstr@monstr.eu>
Cc: microblaze-uclinux@itee.uq.edu.au
---
 arch/microblaze/kernel/prom.c  | 17 +++--------------
 arch/microblaze/kernel/setup.c |  2 +-
 2 files changed, 4 insertions(+), 15 deletions(-)

diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index 0c4453f134cb..e13686ede330 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -106,21 +106,10 @@ void __init early_init_devtree(void *params)
 {
 	pr_debug(" -> early_init_devtree(%p)\n", params);
 
-	/* Setup flat device-tree pointer */
-	initial_boot_params = params;
+	early_init_dt_scan(params);
+	if (!strlen(boot_command_line))
+		strlcpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE);
 
-	/* Retrieve various informations from the /chosen node of the
-	 * device-tree, including the platform type, initrd location and
-	 * size, TCE reserve, and more ...
-	 */
-	of_scan_flat_dt(early_init_dt_scan_chosen, cmd_line);
-
-	/* Scan memory nodes and rebuild MEMBLOCKs */
-	of_scan_flat_dt(early_init_dt_scan_root, NULL);
-	of_scan_flat_dt(early_init_dt_scan_memory, NULL);
-
-	/* Save command line for /proc/cmdline and then parse parameters */
-	strlcpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE);
 	parse_early_param();
 
 	memblock_allow_resize();
diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c
index 0775e036c526..6c4efba8a9c7 100644
--- a/arch/microblaze/kernel/setup.c
+++ b/arch/microblaze/kernel/setup.c
@@ -50,7 +50,7 @@ char cmd_line[COMMAND_LINE_SIZE] __attribute__ ((section(".data")));
 
 void __init setup_arch(char **cmdline_p)
 {
-	*cmdline_p = cmd_line;
+	*cmdline_p = boot_command_line;
 
 	console_verbose();
 
-- 
cgit 


From f75813c0127bbef41ac3152f64a72ba212a5514c Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Mon, 26 Aug 2013 10:20:26 -0500
Subject: mips: use early_init_dt_scan

Convert mips to use new early_init_dt_scan function.

Remove early_init_dt_scan_memory_arch

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Acked-by: John Crispin <blogic@openwrt.org>
---
 arch/mips/include/asm/prom.h |  3 ---
 arch/mips/kernel/prom.c      | 39 +++------------------------------------
 2 files changed, 3 insertions(+), 39 deletions(-)

diff --git a/arch/mips/include/asm/prom.h b/arch/mips/include/asm/prom.h
index 1e7e0961064b..e3dbd0e0608e 100644
--- a/arch/mips/include/asm/prom.h
+++ b/arch/mips/include/asm/prom.h
@@ -17,9 +17,6 @@
 #include <linux/types.h>
 #include <asm/bootinfo.h>
 
-extern int early_init_dt_scan_memory_arch(unsigned long node,
-	const char *uname, int depth, void *data);
-
 extern void device_tree_init(void);
 
 static inline unsigned long pci_address_to_pio(phys_addr_t address)
diff --git a/arch/mips/kernel/prom.c b/arch/mips/kernel/prom.c
index 0fa0b69cdd53..67a4c53b2b54 100644
--- a/arch/mips/kernel/prom.c
+++ b/arch/mips/kernel/prom.c
@@ -17,8 +17,6 @@
 #include <linux/debugfs.h>
 #include <linux/of.h>
 #include <linux/of_fdt.h>
-#include <linux/of_irq.h>
-#include <linux/of_platform.h>
 
 #include <asm/page.h>
 #include <asm/prom.h>
@@ -40,13 +38,6 @@ char *mips_get_machine_name(void)
 }
 
 #ifdef CONFIG_OF
-int __init early_init_dt_scan_memory_arch(unsigned long node,
-					  const char *uname, int depth,
-					  void *data)
-{
-	return early_init_dt_scan_memory(node, uname, depth, data);
-}
-
 void __init early_init_dt_add_memory_arch(u64 base, u64 size)
 {
 	return add_memory_region(base, size, BOOT_MEM_RAM);
@@ -78,36 +69,12 @@ int __init early_init_dt_scan_model(unsigned long node,	const char *uname,
 	return 0;
 }
 
-void __init early_init_devtree(void *params)
-{
-	/* Setup flat device-tree pointer */
-	initial_boot_params = params;
-
-	/* Retrieve various informations from the /chosen node of the
-	 * device-tree, including the platform type, initrd location and
-	 * size, and more ...
-	 */
-	of_scan_flat_dt(early_init_dt_scan_chosen, arcs_cmdline);
-
-
-	/* Scan memory nodes */
-	of_scan_flat_dt(early_init_dt_scan_root, NULL);
-	of_scan_flat_dt(early_init_dt_scan_memory_arch, NULL);
-
-	/* try to load the mips machine name */
-	of_scan_flat_dt(early_init_dt_scan_model, NULL);
-}
-
 void __init __dt_setup_arch(struct boot_param_header *bph)
 {
-	if (be32_to_cpu(bph->magic) != OF_DT_HEADER) {
-		pr_err("DTB has bad magic, ignoring builtin OF DTB\n");
-
+	if (!early_init_dt_scan(bph))
 		return;
-	}
-
-	initial_boot_params = bph;
 
-	early_init_devtree(initial_boot_params);
+	/* try to load the mips machine name */
+	of_scan_flat_dt(early_init_dt_scan_model, NULL);
 }
 #endif
-- 
cgit 


From e94353890aaae1ab81dcacb3cafb449432224d3f Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Mon, 26 Aug 2013 10:25:26 -0500
Subject: openrisc: use early_init_dt_scan

Convert openrisc to use new early_init_dt_scan function.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: linux@lists.openrisc.net
---
 arch/openrisc/kernel/prom.c | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/arch/openrisc/kernel/prom.c b/arch/openrisc/kernel/prom.c
index 3b94972e52b2..fbed459ea365 100644
--- a/arch/openrisc/kernel/prom.c
+++ b/arch/openrisc/kernel/prom.c
@@ -55,20 +55,7 @@ void __init early_init_dt_add_memory_arch(u64 base, u64 size)
 
 void __init early_init_devtree(void *params)
 {
-	/* Setup flat device-tree pointer */
-	initial_boot_params = params;
-
-
-	/* Retrieve various informations from the /chosen node of the
-	 * device-tree, including the platform type, initrd location and
-	 * size, TCE reserve, and more ...
-	 */
-	of_scan_flat_dt(early_init_dt_scan_chosen, boot_command_line);
-
-	/* Scan memory nodes and rebuild MEMBLOCKs */
-	of_scan_flat_dt(early_init_dt_scan_root, NULL);
-	of_scan_flat_dt(early_init_dt_scan_memory, NULL);
-
+	early_init_dt_scan(params);
 	memblock_allow_resize();
 }
 
-- 
cgit 


From 7745fc1fec6ec9556e4cc36c21b0e02589078902 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Wed, 28 Aug 2013 10:05:10 -0500
Subject: xtensa: use early_init_dt_scan

Convert xtensa to use new early_init_dt_scan function.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: linux-xtensa@linux-xtensa.org
---
 arch/xtensa/kernel/setup.c | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
index fc31ec1e977d..65974a8f41a4 100644
--- a/arch/xtensa/kernel/setup.c
+++ b/arch/xtensa/kernel/setup.c
@@ -219,9 +219,13 @@ static int __init parse_bootparam(const bp_tag_t* tag)
 }
 
 #ifdef CONFIG_OF
+bool __initdata dt_memory_scan = false;
 
 void __init early_init_dt_add_memory_arch(u64 base, u64 size)
 {
+	if (!dt_memory_scan)
+		return;
+
 	size &= PAGE_MASK;
 	add_sysmem_bank(MEMORY_TYPE_CONVENTIONAL, base, base + size);
 }
@@ -233,20 +237,13 @@ void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
 
 void __init early_init_devtree(void *params)
 {
-	/* Setup flat device-tree pointer */
-	initial_boot_params = params;
+	if (sysmem.nr_banks == 0)
+		dt_memory_scan = true;
 
-	/* Retrieve various informations from the /chosen node of the
-	 * device-tree, including the platform type, initrd location and
-	 * size, TCE reserve, and more ...
-	 */
-	if (!command_line[0])
-		of_scan_flat_dt(early_init_dt_scan_chosen, command_line);
+	early_init_dt_scan(params);
 
-	/* Scan memory nodes and rebuild MEMBLOCKs */
-	of_scan_flat_dt(early_init_dt_scan_root, NULL);
-	if (sysmem.nr_banks == 0)
-		of_scan_flat_dt(early_init_dt_scan_memory, NULL);
+	if (!command_line[0])
+		strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
 }
 
 static int __init xtensa_device_probe(void)
-- 
cgit 


From 068f6310b965d67d57f89ebf4c539e5933754366 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Tue, 24 Sep 2013 22:20:01 -0500
Subject: of: create default early_init_dt_add_memory_arch

Create a weak version of early_init_dt_add_memory_arch which uses
memblock. This will unify all architectures except ones with custom
memory bank structs.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Jonas Bonn <jonas@southpole.se>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: microblaze-uclinux@itee.uq.edu.au
Cc: linux@lists.openrisc.net
Cc: devicetree@vger.kernel.org
---
 arch/arm64/kernel/setup.c     | 18 ------------------
 arch/microblaze/kernel/prom.c |  5 -----
 arch/openrisc/kernel/prom.c   |  6 ------
 drivers/of/fdt.c              | 19 +++++++++++++++++++
 4 files changed, 19 insertions(+), 29 deletions(-)

diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 4a5f6243ade2..7feb0c97d0dd 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -147,24 +147,6 @@ static void __init setup_machine_fdt(phys_addr_t dt_phys)
 	pr_info("Machine: %s\n", machine_name);
 }
 
-void __init early_init_dt_add_memory_arch(u64 base, u64 size)
-{
-	base &= PAGE_MASK;
-	size &= PAGE_MASK;
-	if (base + size < PHYS_OFFSET) {
-		pr_warning("Ignoring memory block 0x%llx - 0x%llx\n",
-			   base, base + size);
-		return;
-	}
-	if (base < PHYS_OFFSET) {
-		pr_warning("Ignoring memory range 0x%llx - 0x%llx\n",
-			   base, PHYS_OFFSET);
-		size -= PHYS_OFFSET - base;
-		base = PHYS_OFFSET;
-	}
-	memblock_add(base, size);
-}
-
 /*
  * Limit the memory size that was specified via FDT.
  */
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index e13686ede330..951e4d61ca2d 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -41,11 +41,6 @@
 #include <asm/sections.h>
 #include <asm/pci-bridge.h>
 
-void __init early_init_dt_add_memory_arch(u64 base, u64 size)
-{
-	memblock_add(base, size);
-}
-
 #ifdef CONFIG_EARLY_PRINTK
 static char *stdout;
 
diff --git a/arch/openrisc/kernel/prom.c b/arch/openrisc/kernel/prom.c
index fbed459ea365..6dbcaa85421c 100644
--- a/arch/openrisc/kernel/prom.c
+++ b/arch/openrisc/kernel/prom.c
@@ -47,12 +47,6 @@
 #include <asm/sections.h>
 #include <asm/setup.h>
 
-void __init early_init_dt_add_memory_arch(u64 base, u64 size)
-{
-	size &= PAGE_MASK;
-	memblock_add(base, size);
-}
-
 void __init early_init_devtree(void *params)
 {
 	early_init_dt_scan(params);
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index bfbfda543768..5bc55b6e2b41 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -775,6 +775,25 @@ int __init early_init_dt_scan_chosen(unsigned long node, const char *uname,
 }
 
 #ifdef CONFIG_HAVE_MEMBLOCK
+void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size)
+{
+	const u64 phys_offset = __pa(PAGE_OFFSET);
+	base &= PAGE_MASK;
+	size &= PAGE_MASK;
+	if (base + size < phys_offset) {
+		pr_warning("Ignoring memory block 0x%llx - 0x%llx\n",
+			   base, base + size);
+		return;
+	}
+	if (base < phys_offset) {
+		pr_warning("Ignoring memory range 0x%llx - 0x%llx\n",
+			   base, phys_offset);
+		size -= phys_offset - base;
+		base = phys_offset;
+	}
+	memblock_add(base, size);
+}
+
 /*
  * called from unflatten_device_tree() to bootstrap devicetree itself
  * Architectures can override this definition if memblock isn't used
-- 
cgit 


From 65939301acdb1e593fdb424bd356f0b9bc7ba5be Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Fri, 30 Aug 2013 10:54:26 -0500
Subject: arm: set initrd_start/initrd_end for fdt scan

In order to unify the initrd scanning for DT across architectures, make
arm set initrd_start and initrd_end instead of the physical addresses.
This is aligned with all other architectures.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Acked-by: Grant Likely <grant.likely@linaro.org>
---
 arch/arm/mm/init.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index febaee7ca57b..9eeb1cd1c401 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -77,11 +77,11 @@ static int __init parse_tag_initrd2(const struct tag *tag)
 
 __tagtable(ATAG_INITRD2, parse_tag_initrd2);
 
-#ifdef CONFIG_OF_FLATTREE
+#if defined(CONFIG_OF_FLATTREE) && defined(CONFIG_BLK_DEV_INITRD)
 void __init early_init_dt_setup_initrd_arch(u64 start, u64 end)
 {
-	phys_initrd_start = start;
-	phys_initrd_size = end - start;
+	initrd_start = (unsigned long)__va(start);
+	initrd_end = (unsigned long)__va(end);
 }
 #endif /* CONFIG_OF_FLATTREE */
 
@@ -351,6 +351,11 @@ void __init arm_memblock_init(struct meminfo *mi,
 	memblock_reserve(__pa(_stext), _end - _stext);
 #endif
 #ifdef CONFIG_BLK_DEV_INITRD
+	/* FDT scan will populate initrd_start */
+	if (initrd_start) {
+		phys_initrd_start = __virt_to_phys(initrd_start);
+		phys_initrd_size = initrd_end - initrd_start;
+	}
 	if (phys_initrd_size &&
 	    !memblock_is_region_memory(phys_initrd_start, phys_initrd_size)) {
 		pr_err("INITRD: 0x%08llx+0x%08lx is not a memory region - disabling initrd\n",
-- 
cgit 


From ec2eaa73b3d21776f46797a2eef983d7be09a964 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Sun, 25 Aug 2013 16:47:48 -0500
Subject: arm64: set initrd_start/initrd_end for fdt scan

In order to unify the initrd scanning for DT across architectures, make
arm64 use initrd_start and initrd_end instead of the physical addresses.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
---
 arch/arm64/mm/init.c | 24 ++++++------------------
 1 file changed, 6 insertions(+), 18 deletions(-)

diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index de2de5db628d..8261f4e60795 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -39,17 +39,9 @@
 
 #include "mm.h"
 
-static unsigned long phys_initrd_start __initdata = 0;
-static unsigned long phys_initrd_size __initdata = 0;
-
 phys_addr_t memstart_addr __read_mostly = 0;
 
-void __init early_init_dt_setup_initrd_arch(u64 start, u64 end)
-{
-	phys_initrd_start = start;
-	phys_initrd_size = end - start;
-}
-
+#ifdef CONFIG_BLK_DEV_INITRD
 static int __init early_initrd(char *p)
 {
 	unsigned long start, size;
@@ -59,12 +51,13 @@ static int __init early_initrd(char *p)
 	if (*endp == ',') {
 		size = memparse(endp + 1, NULL);
 
-		phys_initrd_start = start;
-		phys_initrd_size = size;
+		initrd_start = (unsigned long)__va(start);
+		initrd_end = (unsigned long)__va(start + size);
 	}
 	return 0;
 }
 early_param("initrd", early_initrd);
+#endif
 
 #define MAX_DMA32_PFN ((4UL * 1024 * 1024 * 1024) >> PAGE_SHIFT)
 
@@ -137,13 +130,8 @@ void __init arm64_memblock_init(void)
 	/* Register the kernel text, kernel data and initrd with memblock */
 	memblock_reserve(__pa(_text), _end - _text);
 #ifdef CONFIG_BLK_DEV_INITRD
-	if (phys_initrd_size) {
-		memblock_reserve(phys_initrd_start, phys_initrd_size);
-
-		/* Now convert initrd to virtual addresses */
-		initrd_start = __phys_to_virt(phys_initrd_start);
-		initrd_end = initrd_start + phys_initrd_size;
-	}
+	if (initrd_start)
+		memblock_reserve(__virt_to_phys(initrd_start), initrd_end - initrd_start);
 #endif
 
 	/*
-- 
cgit 


From 29eb45a9ab4839a1e9cef2bcf369b918c9c4fcad Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Fri, 30 Aug 2013 17:06:53 -0500
Subject: of: remove early_init_dt_setup_initrd_arch

All arches do essentially the same thing now for
early_init_dt_setup_initrd_arch, so it can now be removed.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
---
 arch/arc/mm/init.c            |  7 -------
 arch/arm/mm/init.c            |  8 --------
 arch/c6x/kernel/devicetree.c  | 10 ----------
 arch/metag/mm/init.c          |  9 ---------
 arch/microblaze/kernel/prom.c |  9 ---------
 arch/mips/kernel/prom.c       | 10 ----------
 arch/openrisc/kernel/prom.c   |  9 ---------
 arch/powerpc/kernel/prom.c    |  9 ---------
 arch/x86/kernel/devicetree.c  |  9 ---------
 arch/xtensa/kernel/setup.c    | 15 ++++-----------
 drivers/of/fdt.c              |  9 ++++++---
 include/linux/of_fdt.h        | 10 ----------
 12 files changed, 10 insertions(+), 104 deletions(-)

diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c
index 81279ec73a6a..55e0a85bea78 100644
--- a/arch/arc/mm/init.c
+++ b/arch/arc/mm/init.c
@@ -125,10 +125,3 @@ void __init free_initrd_mem(unsigned long start, unsigned long end)
 	free_reserved_area((void *)start, (void *)end, -1, "initrd");
 }
 #endif
-
-#ifdef CONFIG_OF_FLATTREE
-void __init early_init_dt_setup_initrd_arch(u64 start, u64 end)
-{
-	pr_err("%s(%llx, %llx)\n", __func__, start, end);
-}
-#endif /* CONFIG_OF_FLATTREE */
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 9eeb1cd1c401..9d0b91dccf37 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -77,14 +77,6 @@ static int __init parse_tag_initrd2(const struct tag *tag)
 
 __tagtable(ATAG_INITRD2, parse_tag_initrd2);
 
-#if defined(CONFIG_OF_FLATTREE) && defined(CONFIG_BLK_DEV_INITRD)
-void __init early_init_dt_setup_initrd_arch(u64 start, u64 end)
-{
-	initrd_start = (unsigned long)__va(start);
-	initrd_end = (unsigned long)__va(end);
-}
-#endif /* CONFIG_OF_FLATTREE */
-
 /*
  * This keeps memory configuration data used by a couple memory
  * initialization functions, as well as show_mem() for the skipping
diff --git a/arch/c6x/kernel/devicetree.c b/arch/c6x/kernel/devicetree.c
index d28a92fc0c52..fa3e5741514e 100644
--- a/arch/c6x/kernel/devicetree.c
+++ b/arch/c6x/kernel/devicetree.c
@@ -10,18 +10,8 @@
  *
  */
 #include <linux/init.h>
-#include <linux/initrd.h>
 #include <linux/memblock.h>
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init early_init_dt_setup_initrd_arch(u64 start, u64 end)
-{
-	initrd_start = (unsigned long)__va(start);
-	initrd_end = (unsigned long)__va(end);
-	initrd_below_start_ok = 1;
-}
-#endif
-
 void __init early_init_dt_add_memory_arch(u64 base, u64 size)
 {
 	c6x_add_memory(base, size);
diff --git a/arch/metag/mm/init.c b/arch/metag/mm/init.c
index 123919534b80..249fff66add3 100644
--- a/arch/metag/mm/init.c
+++ b/arch/metag/mm/init.c
@@ -12,7 +12,6 @@
 #include <linux/percpu.h>
 #include <linux/memblock.h>
 #include <linux/initrd.h>
-#include <linux/of_fdt.h>
 
 #include <asm/setup.h>
 #include <asm/page.h>
@@ -405,11 +404,3 @@ void free_initrd_mem(unsigned long start, unsigned long end)
 			   "initrd");
 }
 #endif
-
-#ifdef CONFIG_OF_FLATTREE
-void __init early_init_dt_setup_initrd_arch(u64 start, u64 end)
-{
-	pr_err("%s(%llx, %llx)\n",
-	       __func__, start, end);
-}
-#endif /* CONFIG_OF_FLATTREE */
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index 951e4d61ca2d..cab6dc356119 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -114,15 +114,6 @@ void __init early_init_devtree(void *params)
 	pr_debug(" <- early_init_devtree()\n");
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init early_init_dt_setup_initrd_arch(u64 start, u64 end)
-{
-	initrd_start = (unsigned long)__va(start);
-	initrd_end = (unsigned long)__va(end);
-	initrd_below_start_ok = 1;
-}
-#endif
-
 /*******
  *
  * New implementation of the OF "find" APIs, return a refcounted
diff --git a/arch/mips/kernel/prom.c b/arch/mips/kernel/prom.c
index 67a4c53b2b54..0b2485f9a6c1 100644
--- a/arch/mips/kernel/prom.c
+++ b/arch/mips/kernel/prom.c
@@ -13,7 +13,6 @@
 #include <linux/errno.h>
 #include <linux/types.h>
 #include <linux/bootmem.h>
-#include <linux/initrd.h>
 #include <linux/debugfs.h>
 #include <linux/of.h>
 #include <linux/of_fdt.h>
@@ -48,15 +47,6 @@ void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
 	return __alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS));
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init early_init_dt_setup_initrd_arch(u64 start, u64 end)
-{
-	initrd_start = (unsigned long)__va(start);
-	initrd_end = (unsigned long)__va(end);
-	initrd_below_start_ok = 1;
-}
-#endif
-
 int __init early_init_dt_scan_model(unsigned long node,	const char *uname,
 				    int depth, void *data)
 {
diff --git a/arch/openrisc/kernel/prom.c b/arch/openrisc/kernel/prom.c
index 6dbcaa85421c..2aae474b44c3 100644
--- a/arch/openrisc/kernel/prom.c
+++ b/arch/openrisc/kernel/prom.c
@@ -52,12 +52,3 @@ void __init early_init_devtree(void *params)
 	early_init_dt_scan(params);
 	memblock_allow_resize();
 }
-
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init early_init_dt_setup_initrd_arch(u64 start, u64 end)
-{
-	initrd_start = (unsigned long)__va(start);
-	initrd_end = (unsigned long)__va(end);
-	initrd_below_start_ok = 1;
-}
-#endif
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index b7634ce41dbc..a0894688daef 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -546,15 +546,6 @@ void __init early_init_dt_add_memory_arch(u64 base, u64 size)
 	memblock_add(base, size);
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init early_init_dt_setup_initrd_arch(u64 start, u64 end)
-{
-	initrd_start = (unsigned long)__va(start);
-	initrd_end = (unsigned long)__va(end);
-	initrd_below_start_ok = 1;
-}
-#endif
-
 static void __init early_reserve_mem_dt(void)
 {
 	unsigned long i, len, dt_root;
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 0db805c4b9e8..0e1f95b06336 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -51,15 +51,6 @@ void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
 	return __alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS));
 }
 
-#ifdef CONFIG_BLK_DEV_INITRD
-void __init early_init_dt_setup_initrd_arch(u64 start, u64 end)
-{
-	initrd_start = (unsigned long)__va(start);
-	initrd_end = (unsigned long)__va(end);
-	initrd_below_start_ok = 1;
-}
-#endif
-
 void __init add_dtb(u64 data)
 {
 	initial_dtb = data + offsetof(struct setup_data, data);
diff --git a/arch/xtensa/kernel/setup.c b/arch/xtensa/kernel/setup.c
index 65974a8f41a4..6e2b6638122d 100644
--- a/arch/xtensa/kernel/setup.c
+++ b/arch/xtensa/kernel/setup.c
@@ -61,8 +61,8 @@ extern struct rtc_ops no_rtc_ops;
 struct rtc_ops *rtc_ops;
 
 #ifdef CONFIG_BLK_DEV_INITRD
-extern void *initrd_start;
-extern void *initrd_end;
+extern unsigned long initrd_start;
+extern unsigned long initrd_end;
 int initrd_is_mapped = 0;
 extern int initrd_below_start_ok;
 #endif
@@ -149,8 +149,8 @@ static int __init parse_tag_initrd(const bp_tag_t* tag)
 {
 	meminfo_t* mi;
 	mi = (meminfo_t*)(tag->data);
-	initrd_start = __va(mi->start);
-	initrd_end = __va(mi->end);
+	initrd_start = (unsigned long)__va(mi->start);
+	initrd_end = (unsigned long)__va(mi->end);
 
 	return 0;
 }
@@ -167,13 +167,6 @@ static int __init parse_tag_fdt(const bp_tag_t *tag)
 
 __tagtable(BP_TAG_FDT, parse_tag_fdt);
 
-void __init early_init_dt_setup_initrd_arch(u64 start, u64 end)
-{
-	initrd_start = (void *)__va(start);
-	initrd_end = (void *)__va(end);
-	initrd_below_start_ok = 1;
-}
-
 #endif /* CONFIG_OF */
 
 #endif /* CONFIG_BLK_DEV_INITRD */
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 5bc55b6e2b41..5f4cc88cd89e 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -624,7 +624,7 @@ int __init of_scan_flat_dt_by_path(const char *path,
  * early_init_dt_check_for_initrd - Decode initrd location from flat tree
  * @node: reference to node containing initrd location ('chosen')
  */
-void __init early_init_dt_check_for_initrd(unsigned long node)
+static void __init early_init_dt_check_for_initrd(unsigned long node)
 {
 	u64 start, end;
 	unsigned long len;
@@ -642,12 +642,15 @@ void __init early_init_dt_check_for_initrd(unsigned long node)
 		return;
 	end = of_read_number(prop, len/4);
 
-	early_init_dt_setup_initrd_arch(start, end);
+	initrd_start = (unsigned long)__va(start);
+	initrd_end = (unsigned long)__va(end);
+	initrd_below_start_ok = 1;
+
 	pr_debug("initrd_start=0x%llx  initrd_end=0x%llx\n",
 		 (unsigned long long)start, (unsigned long long)end);
 }
 #else
-inline void early_init_dt_check_for_initrd(unsigned long node)
+static inline void early_init_dt_check_for_initrd(unsigned long node)
 {
 }
 #endif /* CONFIG_BLK_DEV_INITRD */
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index 73e16511134e..b365f5ac7b54 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -96,22 +96,12 @@ extern int of_scan_flat_dt_by_path(const char *path,
 
 extern int early_init_dt_scan_chosen(unsigned long node, const char *uname,
 				     int depth, void *data);
-extern void early_init_dt_check_for_initrd(unsigned long node);
 extern int early_init_dt_scan_memory(unsigned long node, const char *uname,
 				     int depth, void *data);
 extern void early_init_dt_add_memory_arch(u64 base, u64 size);
 extern void * early_init_dt_alloc_memory_arch(u64 size, u64 align);
 extern u64 dt_mem_next_cell(int s, __be32 **cellp);
 
-/*
- * If BLK_DEV_INITRD, the fdt early init code will call this function,
- * to be provided by the arch code. start and end are specified as
- * physical addresses.
- */
-#ifdef CONFIG_BLK_DEV_INITRD
-extern void early_init_dt_setup_initrd_arch(u64 start, u64 end);
-#endif
-
 /* Early flat tree scan hooks */
 extern int early_init_dt_scan_root(unsigned long node, const char *uname,
 				   int depth, void *data);
-- 
cgit 


From 9b7d9f27f6cf418a79b81d99688c2f92bf93fc49 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Mon, 26 Aug 2013 13:38:37 -0500
Subject: openrisc: remove unnecessary prom.c includes

It appears openrisc prom.c was just copied from another arch with a
bunch of unnecessary includes. Remove all the unecessary ones.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: linux@lists.openrisc.net
---
 arch/openrisc/kernel/prom.c | 22 ----------------------
 1 file changed, 22 deletions(-)

diff --git a/arch/openrisc/kernel/prom.c b/arch/openrisc/kernel/prom.c
index 2aae474b44c3..6a44340d1b18 100644
--- a/arch/openrisc/kernel/prom.c
+++ b/arch/openrisc/kernel/prom.c
@@ -18,34 +18,12 @@
  *
  */
 
-#include <stdarg.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
 #include <linux/init.h>
-#include <linux/threads.h>
-#include <linux/spinlock.h>
 #include <linux/types.h>
-#include <linux/pci.h>
-#include <linux/stringify.h>
-#include <linux/delay.h>
-#include <linux/initrd.h>
-#include <linux/bitops.h>
-#include <linux/module.h>
-#include <linux/kexec.h>
-#include <linux/debugfs.h>
-#include <linux/irq.h>
 #include <linux/memblock.h>
 #include <linux/of_fdt.h>
 
-#include <asm/prom.h>
 #include <asm/page.h>
-#include <asm/processor.h>
-#include <asm/irq.h>
-#include <linux/io.h>
-#include <asm/mmu.h>
-#include <asm/pgtable.h>
-#include <asm/sections.h>
-#include <asm/setup.h>
 
 void __init early_init_devtree(void *params)
 {
-- 
cgit 


From 06e6295bcecefea9dc29fc84b5fd6848061365a0 Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Tue, 15 Oct 2013 15:47:14 +0000
Subject: arm: make SWIOTLB available

IOMMU_HELPER is needed because SWIOTLB calls iommu_is_span_boundary,
provided by lib/iommu_helper.c.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
CC: will.deacon@arm.com
CC: linux@arm.linux.org.uk


Changes in v8:
- use __phys_to_pfn and __pfn_to_phys.

Changes in v7:
- dma_mark_clean: empty implementation;
- in dma_capable use coherent_dma_mask if dma_mask hasn't been
  allocated.

Changes in v6:
- check for dev->dma_mask being NULL in dma_capable.

Changes in v5:
- implement dma_mark_clean using dmac_flush_range.

Changes in v3:
- dma_capable: do not treat dma_mask as a limit;
- remove SWIOTLB dependency on NEED_SG_DMA_LENGTH.
---
 arch/arm/Kconfig                   |  6 ++++++
 arch/arm/include/asm/dma-mapping.h | 37 +++++++++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1ad6fb6c094d..b08374f8fe3b 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1872,6 +1872,12 @@ config CC_STACKPROTECTOR
 	  neutralized via a kernel panic.
 	  This feature requires gcc version 4.2 or above.
 
+config SWIOTLB
+	def_bool y
+
+config IOMMU_HELPER
+	def_bool SWIOTLB
+
 config XEN_DOM0
 	def_bool y
 	depends on XEN
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 5b579b951503..01b5a3d92197 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -10,6 +10,7 @@
 
 #include <asm-generic/dma-coherent.h>
 #include <asm/memory.h>
+#include <asm/cacheflush.h>
 
 #define DMA_ERROR_CODE	(~0)
 extern struct dma_map_ops arm_dma_ops;
@@ -86,6 +87,42 @@ static inline dma_addr_t virt_to_dma(struct device *dev, void *addr)
 }
 #endif
 
+static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+{
+	unsigned int offset = paddr & ~PAGE_MASK;
+	return pfn_to_dma(dev, __phys_to_pfn(paddr)) + offset;
+}
+
+static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
+{
+	unsigned int offset = dev_addr & ~PAGE_MASK;
+	return __pfn_to_phys(dma_to_pfn(dev, dev_addr)) + offset;
+}
+
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	u64 limit, mask;
+	
+	if (dev->dma_mask)
+		mask = *dev->dma_mask;
+	else 
+		mask = dev->coherent_dma_mask;
+
+	if (mask == 0)
+		return 0;
+
+	limit = (mask + 1) & ~mask;
+	if (limit && size > limit)
+		return 0;
+
+	if ((addr | (addr + size - 1)) & ~mask)
+		return 0;
+
+	return 1;
+}
+
+static inline void dma_mark_clean(void *addr, size_t size) { }
+
 /*
  * DMA errors are defined by all-bits-set in the DMA address.
  */
-- 
cgit 


From 25b719d7b45947a79d298414cdfb5ec8fadf0ec8 Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Tue, 15 Oct 2013 15:49:03 +0000
Subject: arm64: define DMA_ERROR_CODE

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
CC: will.deacon@arm.com

Changes in v8:
- cast to dma_addr_t before returning.
---
 arch/arm64/include/asm/dma-mapping.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 8d1810001aef..59206b178494 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -25,6 +25,7 @@
 
 #define ARCH_HAS_DMA_GET_REQUIRED_MASK
 
+#define DMA_ERROR_CODE	(~(dma_addr_t)0)
 extern struct dma_map_ops *dma_ops;
 
 static inline struct dma_map_ops *get_dma_ops(struct device *dev)
-- 
cgit 


From 4a19138c6505e224d9f4cc2fe9ada9188d7100ea Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Thu, 17 Oct 2013 16:22:27 +0000
Subject: arm/xen,arm64/xen: introduce p2m

Introduce physical to machine and machine to physical tracking
mechanisms based on rbtrees for arm/xen and arm64/xen.

We need it because any guests on ARM are an autotranslate guests,
therefore a physical address is potentially different from a machine
address. When programming a device to do DMA, we need to be
extra-careful to use machine addresses rather than physical addresses to
program the device. Therefore we need to know the physical to machine
mappings.

For the moment we assume that dom0 starts with a 1:1 physical to machine
mapping, in other words physical addresses correspond to machine
addresses. However when mapping a foreign grant reference, obviously the
1:1 model doesn't work anymore. So at the very least we need to be able
to track grant mappings.

We need locking to protect accesses to the two trees.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

Changes in v8:
- move pfn_to_mfn and mfn_to_pfn to page.h as static inline functions;
- no need to walk the tree if phys_to_mach.rb_node is NULL;
- correctly handle multipage p2m entries;
- substitute the spin_lock with a rwlock.
---
 arch/arm/include/asm/xen/page.h |  49 ++++++++--
 arch/arm/xen/Makefile           |   2 +-
 arch/arm/xen/p2m.c              | 208 ++++++++++++++++++++++++++++++++++++++++
 arch/arm64/xen/Makefile         |   2 +-
 4 files changed, 252 insertions(+), 9 deletions(-)
 create mode 100644 arch/arm/xen/p2m.c

diff --git a/arch/arm/include/asm/xen/page.h b/arch/arm/include/asm/xen/page.h
index 359a7b50b158..d1b5dd566472 100644
--- a/arch/arm/include/asm/xen/page.h
+++ b/arch/arm/include/asm/xen/page.h
@@ -7,11 +7,10 @@
 #include <linux/pfn.h>
 #include <linux/types.h>
 
+#include <xen/xen.h>
 #include <xen/interface/grant_table.h>
 
-#define pfn_to_mfn(pfn)			(pfn)
 #define phys_to_machine_mapping_valid(pfn) (1)
-#define mfn_to_pfn(mfn)			(mfn)
 #define mfn_to_virt(m)			(__va(mfn_to_pfn(m) << PAGE_SHIFT))
 
 #define pte_mfn	    pte_pfn
@@ -32,6 +31,44 @@ typedef struct xpaddr {
 
 #define INVALID_P2M_ENTRY      (~0UL)
 
+unsigned long __pfn_to_mfn(unsigned long pfn);
+unsigned long __mfn_to_pfn(unsigned long mfn);
+extern struct rb_root phys_to_mach;
+
+static inline unsigned long pfn_to_mfn(unsigned long pfn)
+{
+	unsigned long mfn;
+	
+	if (phys_to_mach.rb_node != NULL) {
+		mfn = __pfn_to_mfn(pfn);
+		if (mfn != INVALID_P2M_ENTRY)
+			return mfn;
+	}
+
+	if (xen_initial_domain())
+		return pfn;
+	else
+		return INVALID_P2M_ENTRY;
+}
+
+static inline unsigned long mfn_to_pfn(unsigned long mfn)
+{
+	unsigned long pfn;
+
+	if (phys_to_mach.rb_node != NULL) {
+		pfn = __mfn_to_pfn(mfn);
+		if (pfn != INVALID_P2M_ENTRY)
+			return pfn;
+	}
+
+	if (xen_initial_domain())
+		return mfn;
+	else
+		return INVALID_P2M_ENTRY;
+}
+
+#define mfn_to_local_pfn(mfn) mfn_to_pfn(mfn)
+
 static inline xmaddr_t phys_to_machine(xpaddr_t phys)
 {
 	unsigned offset = phys.paddr & ~PAGE_MASK;
@@ -76,11 +113,9 @@ static inline int m2p_remove_override(struct page *page, bool clear_pte)
 	return 0;
 }
 
-static inline bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn)
-{
-	BUG_ON(pfn != mfn && mfn != INVALID_P2M_ENTRY);
-	return true;
-}
+bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn);
+bool __set_phys_to_machine_multi(unsigned long pfn, unsigned long mfn,
+		unsigned long nr_pages);
 
 static inline bool set_phys_to_machine(unsigned long pfn, unsigned long mfn)
 {
diff --git a/arch/arm/xen/Makefile b/arch/arm/xen/Makefile
index 43841033afd3..21e6ff503178 100644
--- a/arch/arm/xen/Makefile
+++ b/arch/arm/xen/Makefile
@@ -1 +1 @@
-obj-y		:= enlighten.o hypercall.o grant-table.o
+obj-y		:= enlighten.o hypercall.o grant-table.o p2m.o
diff --git a/arch/arm/xen/p2m.c b/arch/arm/xen/p2m.c
new file mode 100644
index 000000000000..5df4a9afb8c6
--- /dev/null
+++ b/arch/arm/xen/p2m.c
@@ -0,0 +1,208 @@
+#include <linux/bootmem.h>
+#include <linux/gfp.h>
+#include <linux/export.h>
+#include <linux/rwlock.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/dma-mapping.h>
+#include <linux/vmalloc.h>
+#include <linux/swiotlb.h>
+
+#include <xen/xen.h>
+#include <xen/interface/memory.h>
+#include <xen/swiotlb-xen.h>
+
+#include <asm/cacheflush.h>
+#include <asm/xen/page.h>
+#include <asm/xen/hypercall.h>
+#include <asm/xen/interface.h>
+
+struct xen_p2m_entry {
+	unsigned long pfn;
+	unsigned long mfn;
+	unsigned long nr_pages;
+	struct rb_node rbnode_mach;
+	struct rb_node rbnode_phys;
+};
+
+rwlock_t p2m_lock;
+struct rb_root phys_to_mach = RB_ROOT;
+static struct rb_root mach_to_phys = RB_ROOT;
+
+static int xen_add_phys_to_mach_entry(struct xen_p2m_entry *new)
+{
+	struct rb_node **link = &phys_to_mach.rb_node;
+	struct rb_node *parent = NULL;
+	struct xen_p2m_entry *entry;
+	int rc = 0;
+
+	while (*link) {
+		parent = *link;
+		entry = rb_entry(parent, struct xen_p2m_entry, rbnode_phys);
+
+		if (new->mfn == entry->mfn)
+			goto err_out;
+		if (new->pfn == entry->pfn)
+			goto err_out;
+
+		if (new->pfn < entry->pfn)
+			link = &(*link)->rb_left;
+		else
+			link = &(*link)->rb_right;
+	}
+	rb_link_node(&new->rbnode_phys, parent, link);
+	rb_insert_color(&new->rbnode_phys, &phys_to_mach);
+	goto out;
+
+err_out:
+	rc = -EINVAL;
+	pr_warn("%s: cannot add pfn=%pa -> mfn=%pa: pfn=%pa -> mfn=%pa already exists\n",
+			__func__, &new->pfn, &new->mfn, &entry->pfn, &entry->mfn);
+out:
+	return rc;
+}
+
+unsigned long __pfn_to_mfn(unsigned long pfn)
+{
+	struct rb_node *n = phys_to_mach.rb_node;
+	struct xen_p2m_entry *entry;
+	unsigned long irqflags;
+
+	read_lock_irqsave(&p2m_lock, irqflags);
+	while (n) {
+		entry = rb_entry(n, struct xen_p2m_entry, rbnode_phys);
+		if (entry->pfn <= pfn &&
+				entry->pfn + entry->nr_pages > pfn) {
+			read_unlock_irqrestore(&p2m_lock, irqflags);
+			return entry->mfn + (pfn - entry->pfn);
+		}
+		if (pfn < entry->pfn)
+			n = n->rb_left;
+		else
+			n = n->rb_right;
+	}
+	read_unlock_irqrestore(&p2m_lock, irqflags);
+
+	return INVALID_P2M_ENTRY;
+}
+EXPORT_SYMBOL_GPL(__pfn_to_mfn);
+
+static int xen_add_mach_to_phys_entry(struct xen_p2m_entry *new)
+{
+	struct rb_node **link = &mach_to_phys.rb_node;
+	struct rb_node *parent = NULL;
+	struct xen_p2m_entry *entry;
+	int rc = 0;
+
+	while (*link) {
+		parent = *link;
+		entry = rb_entry(parent, struct xen_p2m_entry, rbnode_mach);
+
+		if (new->mfn == entry->mfn)
+			goto err_out;
+		if (new->pfn == entry->pfn)
+			goto err_out;
+
+		if (new->mfn < entry->mfn)
+			link = &(*link)->rb_left;
+		else
+			link = &(*link)->rb_right;
+	}
+	rb_link_node(&new->rbnode_mach, parent, link);
+	rb_insert_color(&new->rbnode_mach, &mach_to_phys);
+	goto out;
+
+err_out:
+	rc = -EINVAL;
+	pr_warn("%s: cannot add pfn=%pa -> mfn=%pa: pfn=%pa -> mfn=%pa already exists\n",
+			__func__, &new->pfn, &new->mfn, &entry->pfn, &entry->mfn);
+out:
+	return rc;
+}
+
+unsigned long __mfn_to_pfn(unsigned long mfn)
+{
+	struct rb_node *n = mach_to_phys.rb_node;
+	struct xen_p2m_entry *entry;
+	unsigned long irqflags;
+
+	read_lock_irqsave(&p2m_lock, irqflags);
+	while (n) {
+		entry = rb_entry(n, struct xen_p2m_entry, rbnode_mach);
+		if (entry->mfn <= mfn &&
+				entry->mfn + entry->nr_pages > mfn) {
+			read_unlock_irqrestore(&p2m_lock, irqflags);
+			return entry->pfn + (mfn - entry->mfn);
+		}
+		if (mfn < entry->mfn)
+			n = n->rb_left;
+		else
+			n = n->rb_right;
+	}
+	read_unlock_irqrestore(&p2m_lock, irqflags);
+
+	return INVALID_P2M_ENTRY;
+}
+EXPORT_SYMBOL_GPL(__mfn_to_pfn);
+
+bool __set_phys_to_machine_multi(unsigned long pfn,
+		unsigned long mfn, unsigned long nr_pages)
+{
+	int rc;
+	unsigned long irqflags;
+	struct xen_p2m_entry *p2m_entry;
+	struct rb_node *n = phys_to_mach.rb_node;
+
+	if (mfn == INVALID_P2M_ENTRY) {
+		write_lock_irqsave(&p2m_lock, irqflags);
+		while (n) {
+			p2m_entry = rb_entry(n, struct xen_p2m_entry, rbnode_phys);
+			if (p2m_entry->pfn <= pfn &&
+					p2m_entry->pfn + p2m_entry->nr_pages > pfn) {
+				rb_erase(&p2m_entry->rbnode_mach, &mach_to_phys);
+				rb_erase(&p2m_entry->rbnode_phys, &phys_to_mach);
+				write_unlock_irqrestore(&p2m_lock, irqflags);
+				kfree(p2m_entry);	
+				return true;
+			}
+			if (pfn < p2m_entry->pfn)
+				n = n->rb_left;
+			else
+				n = n->rb_right;
+		}
+		write_unlock_irqrestore(&p2m_lock, irqflags);
+		return true;
+	}
+
+	p2m_entry = kzalloc(sizeof(struct xen_p2m_entry), GFP_NOWAIT);
+	if (!p2m_entry) {
+		pr_warn("cannot allocate xen_p2m_entry\n");
+		return false;
+	}
+	p2m_entry->pfn = pfn;
+	p2m_entry->nr_pages = nr_pages;
+	p2m_entry->mfn = mfn;
+
+	write_lock_irqsave(&p2m_lock, irqflags);
+	if ((rc = xen_add_phys_to_mach_entry(p2m_entry) < 0) ||
+		(rc = xen_add_mach_to_phys_entry(p2m_entry) < 0)) {
+		write_unlock_irqrestore(&p2m_lock, irqflags);
+		return false;
+	}
+	write_unlock_irqrestore(&p2m_lock, irqflags);
+	return true;
+}
+EXPORT_SYMBOL_GPL(__set_phys_to_machine_multi);
+
+bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn)
+{
+	return __set_phys_to_machine_multi(pfn, mfn, 1);
+}
+EXPORT_SYMBOL_GPL(__set_phys_to_machine);
+
+int p2m_init(void)
+{
+	rwlock_init(&p2m_lock);
+	return 0;
+}
+arch_initcall(p2m_init);
diff --git a/arch/arm64/xen/Makefile b/arch/arm64/xen/Makefile
index be240404ba96..cd866b0c619b 100644
--- a/arch/arm64/xen/Makefile
+++ b/arch/arm64/xen/Makefile
@@ -1,2 +1,2 @@
-xen-arm-y	+= $(addprefix ../../arm/xen/, enlighten.o grant-table.o)
+xen-arm-y	+= $(addprefix ../../arm/xen/, enlighten.o grant-table.o p2m.o)
 obj-y		:= xen-arm.o hypercall.o
-- 
cgit 


From 2f558d40911c1b8f929b8a382833ae1da5df3293 Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Wed, 9 Oct 2013 20:39:01 +0000
Subject: xen/x86: allow __set_phys_to_machine for autotranslate guests

Allow __set_phys_to_machine to be called for autotranslate guests.
It can be used to keep track of phys_to_machine changes, however we
don't do anything with the information at the moment.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
---
 arch/x86/xen/p2m.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/xen/p2m.c b/arch/x86/xen/p2m.c
index a61c7d5811be..2ae8699e8767 100644
--- a/arch/x86/xen/p2m.c
+++ b/arch/x86/xen/p2m.c
@@ -799,10 +799,10 @@ bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn)
 {
 	unsigned topidx, mididx, idx;
 
-	if (unlikely(xen_feature(XENFEAT_auto_translated_physmap))) {
-		BUG_ON(pfn != mfn && mfn != INVALID_P2M_ENTRY);
+	/* don't track P2M changes in autotranslate guests */
+	if (unlikely(xen_feature(XENFEAT_auto_translated_physmap)))
 		return true;
-	}
+
 	if (unlikely(pfn >= MAX_P2M_PFN)) {
 		BUG_ON(mfn != INVALID_P2M_ENTRY);
 		return true;
-- 
cgit 


From 69908907b02efee31377af0cefbcd5a3ba66334a Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Wed, 9 Oct 2013 16:56:32 +0000
Subject: xen: make xen_create_contiguous_region return the dma address

Modify xen_create_contiguous_region to return the dma address of the
newly contiguous buffer.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>


Changes in v4:
- use virt_to_machine instead of virt_to_bus.
---
 arch/x86/xen/mmu.c        | 4 +++-
 drivers/xen/swiotlb-xen.c | 6 +++---
 include/xen/xen-ops.h     | 3 ++-
 3 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index fdc3ba28ca38..6c34d7c03d5b 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -2329,7 +2329,8 @@ static int xen_exchange_memory(unsigned long extents_in, unsigned int order_in,
 }
 
 int xen_create_contiguous_region(unsigned long vstart, unsigned int order,
-				 unsigned int address_bits)
+				 unsigned int address_bits,
+				 dma_addr_t *dma_handle)
 {
 	unsigned long *in_frames = discontig_frames, out_frame;
 	unsigned long  flags;
@@ -2368,6 +2369,7 @@ int xen_create_contiguous_region(unsigned long vstart, unsigned int order,
 
 	spin_unlock_irqrestore(&xen_reservation_lock, flags);
 
+	*dma_handle = virt_to_machine(vstart).maddr;
 	return success ? 0 : -ENOMEM;
 }
 EXPORT_SYMBOL_GPL(xen_create_contiguous_region);
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 1b2277c311d2..b72f31c1e018 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -126,6 +126,7 @@ xen_swiotlb_fixup(void *buf, size_t size, unsigned long nslabs)
 {
 	int i, rc;
 	int dma_bits;
+	dma_addr_t dma_handle;
 
 	dma_bits = get_order(IO_TLB_SEGSIZE << IO_TLB_SHIFT) + PAGE_SHIFT;
 
@@ -137,7 +138,7 @@ xen_swiotlb_fixup(void *buf, size_t size, unsigned long nslabs)
 			rc = xen_create_contiguous_region(
 				(unsigned long)buf + (i << IO_TLB_SHIFT),
 				get_order(slabs << IO_TLB_SHIFT),
-				dma_bits);
+				dma_bits, &dma_handle);
 		} while (rc && dma_bits++ < max_dma_bits);
 		if (rc)
 			return rc;
@@ -294,11 +295,10 @@ xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 		*dma_handle = dev_addr;
 	else {
 		if (xen_create_contiguous_region(vstart, order,
-						 fls64(dma_mask)) != 0) {
+						 fls64(dma_mask), dma_handle) != 0) {
 			free_pages(vstart, order);
 			return NULL;
 		}
-		*dma_handle = virt_to_machine(ret).maddr;
 	}
 	memset(ret, 0, size);
 	return ret;
diff --git a/include/xen/xen-ops.h b/include/xen/xen-ops.h
index d6fe062cad6b..9ef704d3a9dd 100644
--- a/include/xen/xen-ops.h
+++ b/include/xen/xen-ops.h
@@ -20,7 +20,8 @@ int xen_setup_shutdown_event(void);
 
 extern unsigned long *xen_contiguous_bitmap;
 int xen_create_contiguous_region(unsigned long vstart, unsigned int order,
-				unsigned int address_bits);
+				unsigned int address_bits,
+				dma_addr_t *dma_handle);
 
 void xen_destroy_contiguous_region(unsigned long vstart, unsigned int order);
 
-- 
cgit 


From 83862ccfc0a03212fde43b4ac29c28381828768b Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Thu, 10 Oct 2013 13:40:44 +0000
Subject: xen/arm,arm64: enable SWIOTLB_XEN

Xen on arm and arm64 needs SWIOTLB_XEN: when running on Xen we need to
program the hardware with mfns rather than pfns for dma addresses.
Remove SWIOTLB_XEN dependency on X86 and PCI and make XEN select
SWIOTLB_XEN on arm and arm64.

At the moment always rely on swiotlb-xen, but when Xen starts supporting
hardware IOMMUs we'll be able to avoid it conditionally on the presence
of an IOMMU on the platform.

Implement xen_create_contiguous_region on arm and arm64: for the moment
we assume that dom0 has been mapped 1:1 (physical addresses == machine
addresses) therefore we don't need to call XENMEM_exchange. Simply
return the physical address as dma address.

Initialize the xen-swiotlb from xen_early_init (before the native
dma_ops are initialized), set xen_dma_ops to &xen_swiotlb_dma_ops.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>


Changes in v8:
- assume dom0 is mapped 1:1, no need to call XENMEM_exchange.

Changes in v7:
- call __set_phys_to_machine_multi from xen_create_contiguous_region and
xen_destroy_contiguous_region to update the P2M;
- don't call XENMEM_unpin, it has been removed;
- call XENMEM_exchange instead of XENMEM_exchange_and_pin;
- set nr_exchanged to 0 before calling the hypercall.

Changes in v6:
- introduce and export xen_dma_ops;
- call xen_mm_init from as arch_initcall.

Changes in v4:
- remove redefinition of DMA_ERROR_CODE;
- update the code to use XENMEM_exchange_and_pin and XENMEM_unpin;
- add a note about hardware IOMMU in the commit message.

Changes in v3:
- code style changes;
- warn on XENMEM_put_dma_buf failures.
---
 arch/arm/Kconfig                      |  1 +
 arch/arm/include/asm/xen/hypervisor.h |  2 ++
 arch/arm/include/asm/xen/page.h       |  1 +
 arch/arm/xen/Makefile                 |  2 +-
 arch/arm/xen/mm.c                     | 64 +++++++++++++++++++++++++++++++++++
 arch/arm64/Kconfig                    |  1 +
 arch/arm64/xen/Makefile               |  2 +-
 drivers/xen/Kconfig                   |  1 -
 drivers/xen/swiotlb-xen.c             | 15 ++++++++
 9 files changed, 86 insertions(+), 3 deletions(-)
 create mode 100644 arch/arm/xen/mm.c

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index b08374f8fe3b..01f7013c85c7 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1888,6 +1888,7 @@ config XEN
 	depends on CPU_V7 && !CPU_V6
 	depends on !GENERIC_ATOMIC64
 	select ARM_PSCI
+	select SWIOTLB_XEN
 	help
 	  Say Y if you want to run Linux in a Virtual Machine on Xen on ARM.
 
diff --git a/arch/arm/include/asm/xen/hypervisor.h b/arch/arm/include/asm/xen/hypervisor.h
index d7ab99a0c9eb..1317ee40f4df 100644
--- a/arch/arm/include/asm/xen/hypervisor.h
+++ b/arch/arm/include/asm/xen/hypervisor.h
@@ -16,4 +16,6 @@ static inline enum paravirt_lazy_mode paravirt_get_lazy_mode(void)
 	return PARAVIRT_LAZY_NONE;
 }
 
+extern struct dma_map_ops *xen_dma_ops;
+
 #endif /* _ASM_ARM_XEN_HYPERVISOR_H */
diff --git a/arch/arm/include/asm/xen/page.h b/arch/arm/include/asm/xen/page.h
index d1b5dd566472..5d0e4c5dc711 100644
--- a/arch/arm/include/asm/xen/page.h
+++ b/arch/arm/include/asm/xen/page.h
@@ -6,6 +6,7 @@
 
 #include <linux/pfn.h>
 #include <linux/types.h>
+#include <linux/dma-mapping.h>
 
 #include <xen/xen.h>
 #include <xen/interface/grant_table.h>
diff --git a/arch/arm/xen/Makefile b/arch/arm/xen/Makefile
index 21e6ff503178..12969523414c 100644
--- a/arch/arm/xen/Makefile
+++ b/arch/arm/xen/Makefile
@@ -1 +1 @@
-obj-y		:= enlighten.o hypercall.o grant-table.o p2m.o
+obj-y		:= enlighten.o hypercall.o grant-table.o p2m.o mm.o
diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c
new file mode 100644
index 000000000000..d56b8c6e4fbb
--- /dev/null
+++ b/arch/arm/xen/mm.c
@@ -0,0 +1,64 @@
+#include <linux/bootmem.h>
+#include <linux/gfp.h>
+#include <linux/export.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/dma-mapping.h>
+#include <linux/vmalloc.h>
+#include <linux/swiotlb.h>
+
+#include <xen/xen.h>
+#include <xen/interface/memory.h>
+#include <xen/swiotlb-xen.h>
+
+#include <asm/cacheflush.h>
+#include <asm/xen/page.h>
+#include <asm/xen/hypercall.h>
+#include <asm/xen/interface.h>
+
+int xen_create_contiguous_region(unsigned long vstart, unsigned int order,
+				 unsigned int address_bits,
+				 dma_addr_t *dma_handle)
+{
+	if (!xen_initial_domain())
+		return -EINVAL;
+
+	/* we assume that dom0 is mapped 1:1 for now */
+	*dma_handle = virt_to_phys(pstart);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(xen_create_contiguous_region);
+
+void xen_destroy_contiguous_region(unsigned long vstart, unsigned int order)
+{
+	return;
+}
+EXPORT_SYMBOL_GPL(xen_destroy_contiguous_region);
+
+struct dma_map_ops *xen_dma_ops;
+EXPORT_SYMBOL_GPL(xen_dma_ops);
+
+static struct dma_map_ops xen_swiotlb_dma_ops = {
+	.mapping_error = xen_swiotlb_dma_mapping_error,
+	.alloc = xen_swiotlb_alloc_coherent,
+	.free = xen_swiotlb_free_coherent,
+	.sync_single_for_cpu = xen_swiotlb_sync_single_for_cpu,
+	.sync_single_for_device = xen_swiotlb_sync_single_for_device,
+	.sync_sg_for_cpu = xen_swiotlb_sync_sg_for_cpu,
+	.sync_sg_for_device = xen_swiotlb_sync_sg_for_device,
+	.map_sg = xen_swiotlb_map_sg_attrs,
+	.unmap_sg = xen_swiotlb_unmap_sg_attrs,
+	.map_page = xen_swiotlb_map_page,
+	.unmap_page = xen_swiotlb_unmap_page,
+	.dma_supported = xen_swiotlb_dma_supported,
+};
+
+int __init xen_mm_init(void)
+{
+	if (!xen_initial_domain())
+		return 0;
+	xen_swiotlb_init(1, false);
+	xen_dma_ops = &xen_swiotlb_dma_ops;
+	return 0;
+}
+arch_initcall(xen_mm_init);
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index c04454876bcb..04ffafb6fbe9 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -211,6 +211,7 @@ config XEN_DOM0
 config XEN
 	bool "Xen guest support on ARM64 (EXPERIMENTAL)"
 	depends on ARM64 && OF
+	select SWIOTLB_XEN
 	help
 	  Say Y if you want to run Linux in a Virtual Machine on Xen on ARM64.
 
diff --git a/arch/arm64/xen/Makefile b/arch/arm64/xen/Makefile
index cd866b0c619b..74a8d87e542b 100644
--- a/arch/arm64/xen/Makefile
+++ b/arch/arm64/xen/Makefile
@@ -1,2 +1,2 @@
-xen-arm-y	+= $(addprefix ../../arm/xen/, enlighten.o grant-table.o p2m.o)
+xen-arm-y	+= $(addprefix ../../arm/xen/, enlighten.o grant-table.o p2m.o mm.o)
 obj-y		:= xen-arm.o hypercall.o
diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index 23eae5cb69c2..c794ea182140 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -140,7 +140,6 @@ config XEN_GRANT_DEV_ALLOC
 
 config SWIOTLB_XEN
 	def_bool y
-	depends on PCI && X86
 	select SWIOTLB
 
 config XEN_TMEM
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index b72f31c1e018..f0fc1a4f565a 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -42,12 +42,27 @@
 #include <xen/page.h>
 #include <xen/xen-ops.h>
 #include <xen/hvc-console.h>
+#include <asm/dma-mapping.h>
 /*
  * Used to do a quick range check in swiotlb_tbl_unmap_single and
  * swiotlb_tbl_sync_single_*, to see if the memory was in fact allocated by this
  * API.
  */
 
+#ifndef CONFIG_X86
+static unsigned long dma_alloc_coherent_mask(struct device *dev,
+					    gfp_t gfp)
+{
+	unsigned long dma_mask = 0;
+
+	dma_mask = dev->coherent_dma_mask;
+	if (!dma_mask)
+		dma_mask = (gfp & GFP_DMA) ? DMA_BIT_MASK(24) : DMA_BIT_MASK(32);
+
+	return dma_mask;
+}
+#endif
+
 static char *xen_io_tlb_start, *xen_io_tlb_end;
 static unsigned long xen_io_tlb_nslabs;
 /*
-- 
cgit 


From eb1ddc00b81cb8cb23891b6c7c5fbfaea29f3c73 Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Wed, 9 Oct 2013 16:56:33 +0000
Subject: swiotlb-xen: introduce xen_swiotlb_set_dma_mask

Implement xen_swiotlb_set_dma_mask, use it for set_dma_mask on arm.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
---
 arch/arm/xen/mm.c         |  1 +
 drivers/xen/swiotlb-xen.c | 12 ++++++++++++
 include/xen/swiotlb-xen.h |  2 ++
 3 files changed, 15 insertions(+)

diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c
index d56b8c6e4fbb..0d69b874d249 100644
--- a/arch/arm/xen/mm.c
+++ b/arch/arm/xen/mm.c
@@ -51,6 +51,7 @@ static struct dma_map_ops xen_swiotlb_dma_ops = {
 	.map_page = xen_swiotlb_map_page,
 	.unmap_page = xen_swiotlb_unmap_page,
 	.dma_supported = xen_swiotlb_dma_supported,
+	.set_dma_mask = xen_swiotlb_set_dma_mask,
 };
 
 int __init xen_mm_init(void)
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index f0fc1a4f565a..d8ef0bf577d2 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -608,3 +608,15 @@ xen_swiotlb_dma_supported(struct device *hwdev, u64 mask)
 	return xen_virt_to_bus(xen_io_tlb_end - 1) <= mask;
 }
 EXPORT_SYMBOL_GPL(xen_swiotlb_dma_supported);
+
+int
+xen_swiotlb_set_dma_mask(struct device *dev, u64 dma_mask)
+{
+	if (!dev->dma_mask || !xen_swiotlb_dma_supported(dev, dma_mask))
+		return -EIO;
+
+	*dev->dma_mask = dma_mask;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(xen_swiotlb_set_dma_mask);
diff --git a/include/xen/swiotlb-xen.h b/include/xen/swiotlb-xen.h
index de8bcc641c49..7b644650d968 100644
--- a/include/xen/swiotlb-xen.h
+++ b/include/xen/swiotlb-xen.h
@@ -55,4 +55,6 @@ xen_swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr);
 extern int
 xen_swiotlb_dma_supported(struct device *hwdev, u64 mask);
 
+extern int
+xen_swiotlb_set_dma_mask(struct device *dev, u64 dma_mask);
 #endif /* __LINUX_SWIOTLB_XEN_H */
-- 
cgit 


From c2bb06db59eaf92eb5ca9c6faed590597c6ceccb Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 9 Oct 2013 03:05:48 -0700
Subject: net: fix build errors if ipv6 is disabled

CONFIG_IPV6=n is still a valid choice ;)

It appears we can remove dead code.

Reported-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/ip6_checksum.h | 2 ++
 net/ipv4/ping.c            | 8 +++++---
 net/ipv4/tcp_metrics.c     | 4 ++++
 net/sunrpc/svcsock.c       | 2 ++
 security/lsm_audit.c       | 2 ++
 5 files changed, 15 insertions(+), 3 deletions(-)

diff --git a/include/net/ip6_checksum.h b/include/net/ip6_checksum.h
index 1944406949ba..9e3c540c1b11 100644
--- a/include/net/ip6_checksum.h
+++ b/include/net/ip6_checksum.h
@@ -66,12 +66,14 @@ static inline void __tcp_v6_send_check(struct sk_buff *skb,
 	}
 }
 
+#if IS_ENABLED(CONFIG_IPV6)
 static inline void tcp_v6_send_check(struct sock *sk, struct sk_buff *skb)
 {
 	struct ipv6_pinfo *np = inet6_sk(sk);
 
 	__tcp_v6_send_check(skb, &np->saddr, &sk->sk_v6_daddr);
 }
+#endif
 
 int udp6_csum_init(struct sk_buff *skb, struct udphdr *uh, int proto);
 #endif
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index ccefc07beacd..9afbdb19f4a2 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -415,10 +415,12 @@ int ping_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 		 (int)sk->sk_bound_dev_if);
 
 	err = 0;
-	if ((sk->sk_family == AF_INET && isk->inet_rcv_saddr) ||
-	    (sk->sk_family == AF_INET6 &&
-	     !ipv6_addr_any(&sk->sk_v6_rcv_saddr)))
+	if (sk->sk_family == AF_INET && isk->inet_rcv_saddr)
 		sk->sk_userlocks |= SOCK_BINDADDR_LOCK;
+#if IS_ENABLED(CONFIG_IPV6)
+	if (sk->sk_family == AF_INET6 && !ipv6_addr_any(&sk->sk_v6_rcv_saddr))
+		sk->sk_userlocks |= SOCK_BINDADDR_LOCK;
+#endif
 
 	if (snum)
 		sk->sk_userlocks |= SOCK_BINDPORT_LOCK;
diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c
index 27535fd5ea10..8fcc2cb9dba4 100644
--- a/net/ipv4/tcp_metrics.c
+++ b/net/ipv4/tcp_metrics.c
@@ -251,10 +251,12 @@ static struct tcp_metrics_block *__tcp_get_metrics_tw(struct inet_timewait_sock
 		addr.addr.a4 = tw->tw_daddr;
 		hash = (__force unsigned int) addr.addr.a4;
 		break;
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 		*(struct in6_addr *)addr.addr.a6 = tw->tw_v6_daddr;
 		hash = ipv6_addr_hash(&tw->tw_v6_daddr);
 		break;
+#endif
 	default:
 		return NULL;
 	}
@@ -286,10 +288,12 @@ static struct tcp_metrics_block *tcp_get_metrics(struct sock *sk,
 		addr.addr.a4 = inet_sk(sk)->inet_daddr;
 		hash = (__force unsigned int) addr.addr.a4;
 		break;
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
 		*(struct in6_addr *)addr.addr.a6 = sk->sk_v6_daddr;
 		hash = ipv6_addr_hash(&sk->sk_v6_daddr);
 		break;
+#endif
 	default:
 		return NULL;
 	}
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 0045c7cf1e9e..b6e59f0a9475 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -291,12 +291,14 @@ static int svc_one_sock_name(struct svc_sock *svsk, char *buf, int remaining)
 				&inet_sk(sk)->inet_rcv_saddr,
 				inet_sk(sk)->inet_num);
 		break;
+#if IS_ENABLED(CONFIG_IPV6)
 	case PF_INET6:
 		len = snprintf(buf, remaining, "ipv6 %s %pI6 %d\n",
 				proto_name,
 				&sk->sk_v6_rcv_saddr,
 				inet_sk(sk)->inet_num);
 		break;
+#endif
 	default:
 		len = snprintf(buf, remaining, "*unknown-%d*\n",
 				sk->sk_family);
diff --git a/security/lsm_audit.c b/security/lsm_audit.c
index 80554fcf9fcc..234bc2ab450c 100644
--- a/security/lsm_audit.c
+++ b/security/lsm_audit.c
@@ -302,6 +302,7 @@ static void dump_common_audit_data(struct audit_buffer *ab,
 						"faddr", "fport");
 				break;
 			}
+#if IS_ENABLED(CONFIG_IPV6)
 			case AF_INET6: {
 				struct inet_sock *inet = inet_sk(sk);
 
@@ -313,6 +314,7 @@ static void dump_common_audit_data(struct audit_buffer *ab,
 						"faddr", "fport");
 				break;
 			}
+#endif
 			case AF_UNIX:
 				u = unix_sk(sk);
 				if (u->path.dentry) {
-- 
cgit 


From c7e9bc548325f19635e7ac7cd5f3ec587228952e Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Fri, 18 Oct 2013 16:01:26 +0000
Subject: arm/xen: get_dma_ops: return xen_dma_ops if we are running as
 xen_initial_domain

We can't simply override arm_dma_ops with xen_dma_ops because devices
are allowed to have their own dma_ops and they take precedence over
arm_dma_ops. When running on Xen as initial domain, we always want
xen_dma_ops to be the one in use.

We introduce __generic_dma_ops to allow xen_dma_ops functions to call
back to the native implementation.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
CC: will.deacon@arm.com
CC: linux@arm.linux.org.uk

Changes in v7:
- return xen_dma_ops only if we are the initial domain;
- rename __get_dma_ops to __generic_dma_ops.
---
 arch/arm/include/asm/dma-mapping.h | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 01b5a3d92197..f5945d4e4e9f 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -12,17 +12,28 @@
 #include <asm/memory.h>
 #include <asm/cacheflush.h>
 
+#include <xen/xen.h>
+#include <asm/xen/hypervisor.h>
+
 #define DMA_ERROR_CODE	(~0)
 extern struct dma_map_ops arm_dma_ops;
 extern struct dma_map_ops arm_coherent_dma_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline struct dma_map_ops *__generic_dma_ops(struct device *dev)
 {
 	if (dev && dev->archdata.dma_ops)
 		return dev->archdata.dma_ops;
 	return &arm_dma_ops;
 }
 
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+{
+	if (xen_initial_domain())
+		return xen_dma_ops;
+	else
+		return __generic_dma_ops(dev);
+}
+
 static inline void set_dma_ops(struct device *dev, struct dma_map_ops *ops)
 {
 	BUG_ON(!dev);
-- 
cgit 


From 58c8b26909f287c72a7a39d26f800ffe61e01bf3 Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Fri, 18 Oct 2013 16:01:32 +0000
Subject: arm64/xen: get_dma_ops: return xen_dma_ops if we are running as
 xen_initial_domain

We can't simply override arm_dma_ops with xen_dma_ops because devices
are allowed to have their own dma_ops and they take precedence over
arm_dma_ops. When running on Xen as initial domain, we always want
xen_dma_ops to be the one in use.

We introduce __generic_dma_ops to allow xen_dma_ops functions to call
back to the native implementation.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
CC: will.deacon@arm.com

Changes in v7:
- return xen_dma_ops only if we are the initial domain;
- rename __get_dma_ops to __generic_dma_ops.
---
 arch/arm64/include/asm/dma-mapping.h | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/dma-mapping.h b/arch/arm64/include/asm/dma-mapping.h
index 59206b178494..fd0c0c0e447a 100644
--- a/arch/arm64/include/asm/dma-mapping.h
+++ b/arch/arm64/include/asm/dma-mapping.h
@@ -23,12 +23,15 @@
 
 #include <asm-generic/dma-coherent.h>
 
+#include <xen/xen.h>
+#include <asm/xen/hypervisor.h>
+
 #define ARCH_HAS_DMA_GET_REQUIRED_MASK
 
 #define DMA_ERROR_CODE	(~(dma_addr_t)0)
 extern struct dma_map_ops *dma_ops;
 
-static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+static inline struct dma_map_ops *__generic_dma_ops(struct device *dev)
 {
 	if (unlikely(!dev) || !dev->archdata.dma_ops)
 		return dma_ops;
@@ -36,6 +39,14 @@ static inline struct dma_map_ops *get_dma_ops(struct device *dev)
 		return dev->archdata.dma_ops;
 }
 
+static inline struct dma_map_ops *get_dma_ops(struct device *dev)
+{
+	if (xen_initial_domain())
+		return xen_dma_ops;
+	else
+		return __generic_dma_ops(dev);
+}
+
 #include <asm-generic/dma-mapping-common.h>
 
 static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
-- 
cgit 


From d6fe76c58c358498b91d21f0ca8054f6aa6e672d Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Wed, 9 Oct 2013 17:18:14 +0000
Subject: xen: introduce xen_alloc/free_coherent_pages

xen_swiotlb_alloc_coherent needs to allocate a coherent buffer for cpu
and devices. On native x86 is sufficient to call __get_free_pages in
order to get a coherent buffer, while on ARM (and potentially ARM64) we
need to call the native dma_ops->alloc implementation.

Introduce xen_alloc_coherent_pages to abstract the arch specific buffer
allocation.

Similarly introduce xen_free_coherent_pages to free a coherent buffer:
on x86 is simply a call to free_pages while on ARM and ARM64 is
arm_dma_ops.free.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>


Changes in v7:
- rename __get_dma_ops to __generic_dma_ops;
- call __generic_dma_ops(hwdev)->alloc/free on arm64 too.

Changes in v6:
- call __get_dma_ops to get the native dma_ops pointer on arm.
---
 arch/arm/include/asm/xen/page-coherent.h   | 22 ++++++++++++++++++++++
 arch/arm64/include/asm/xen/page-coherent.h | 22 ++++++++++++++++++++++
 arch/ia64/include/asm/xen/page-coherent.h  | 24 ++++++++++++++++++++++++
 arch/x86/include/asm/xen/page-coherent.h   | 24 ++++++++++++++++++++++++
 4 files changed, 92 insertions(+)
 create mode 100644 arch/arm/include/asm/xen/page-coherent.h
 create mode 100644 arch/arm64/include/asm/xen/page-coherent.h
 create mode 100644 arch/ia64/include/asm/xen/page-coherent.h
 create mode 100644 arch/x86/include/asm/xen/page-coherent.h

diff --git a/arch/arm/include/asm/xen/page-coherent.h b/arch/arm/include/asm/xen/page-coherent.h
new file mode 100644
index 000000000000..c4d843c300c7
--- /dev/null
+++ b/arch/arm/include/asm/xen/page-coherent.h
@@ -0,0 +1,22 @@
+#ifndef _ASM_ARM_XEN_PAGE_COHERENT_H
+#define _ASM_ARM_XEN_PAGE_COHERENT_H
+
+#include <asm/page.h>
+#include <linux/dma-attrs.h>
+#include <linux/dma-mapping.h>
+
+static inline void *xen_alloc_coherent_pages(struct device *hwdev, size_t size,
+		dma_addr_t *dma_handle, gfp_t flags,
+		struct dma_attrs *attrs)
+{
+	return __generic_dma_ops(hwdev)->alloc(hwdev, size, dma_handle, flags, attrs);
+}
+
+static inline void xen_free_coherent_pages(struct device *hwdev, size_t size,
+		void *cpu_addr, dma_addr_t dma_handle,
+		struct dma_attrs *attrs)
+{
+	__generic_dma_ops(hwdev)->free(hwdev, size, cpu_addr, dma_handle, attrs);
+}
+
+#endif /* _ASM_ARM_XEN_PAGE_COHERENT_H */
diff --git a/arch/arm64/include/asm/xen/page-coherent.h b/arch/arm64/include/asm/xen/page-coherent.h
new file mode 100644
index 000000000000..3b4f029b6660
--- /dev/null
+++ b/arch/arm64/include/asm/xen/page-coherent.h
@@ -0,0 +1,22 @@
+#ifndef _ASM_ARM64_XEN_PAGE_COHERENT_H
+#define _ASM_ARM64_XEN_PAGE_COHERENT_H
+
+#include <asm/page.h>
+#include <linux/dma-attrs.h>
+#include <linux/dma-mapping.h>
+
+static inline void *xen_alloc_coherent_pages(struct device *hwdev, size_t size,
+		dma_addr_t *dma_handle, gfp_t flags,
+		struct dma_attrs *attrs)
+{
+	return __generic_dma_ops(hwdev)->alloc(hwdev, size, dma_handle, flags, attrs);
+}
+
+static inline void xen_free_coherent_pages(struct device *hwdev, size_t size,
+		void *cpu_addr, dma_addr_t dma_handle,
+		struct dma_attrs *attrs)
+{
+	__generic_dma_ops(hwdev)->free(hwdev, size, cpu_addr, dma_handle, attrs);
+}
+
+#endif /* _ASM_ARM64_XEN_PAGE_COHERENT_H */
diff --git a/arch/ia64/include/asm/xen/page-coherent.h b/arch/ia64/include/asm/xen/page-coherent.h
new file mode 100644
index 000000000000..37b929c117bf
--- /dev/null
+++ b/arch/ia64/include/asm/xen/page-coherent.h
@@ -0,0 +1,24 @@
+#ifndef _ASM_IA64_XEN_PAGE_COHERENT_H
+#define _ASM_IA64_XEN_PAGE_COHERENT_H
+
+#include <asm/page.h>
+#include <linux/dma-attrs.h>
+#include <linux/dma-mapping.h>
+
+static inline void *xen_alloc_coherent_pages(struct device *hwdev, size_t size,
+		dma_addr_t *dma_handle, gfp_t flags,
+		struct dma_attrs *attrs)
+{
+	void *vstart = (void*)__get_free_pages(flags, get_order(size));
+	*dma_handle = virt_to_phys(vstart);
+	return vstart;
+}
+
+static inline void xen_free_coherent_pages(struct device *hwdev, size_t size,
+		void *cpu_addr, dma_addr_t dma_handle,
+		struct dma_attrs *attrs)
+{
+	free_pages((unsigned long) cpu_addr, get_order(size));
+}
+
+#endif /* _ASM_IA64_XEN_PAGE_COHERENT_H */
diff --git a/arch/x86/include/asm/xen/page-coherent.h b/arch/x86/include/asm/xen/page-coherent.h
new file mode 100644
index 000000000000..31de2e07918d
--- /dev/null
+++ b/arch/x86/include/asm/xen/page-coherent.h
@@ -0,0 +1,24 @@
+#ifndef _ASM_X86_XEN_PAGE_COHERENT_H
+#define _ASM_X86_XEN_PAGE_COHERENT_H
+
+#include <asm/page.h>
+#include <linux/dma-attrs.h>
+#include <linux/dma-mapping.h>
+
+static inline void *xen_alloc_coherent_pages(struct device *hwdev, size_t size,
+		dma_addr_t *dma_handle, gfp_t flags,
+		struct dma_attrs *attrs)
+{
+	void *vstart = (void*)__get_free_pages(flags, get_order(size));
+	*dma_handle = virt_to_phys(vstart);
+	return vstart;
+}
+
+static inline void xen_free_coherent_pages(struct device *hwdev, size_t size,
+		void *cpu_addr, dma_addr_t dma_handle,
+		struct dma_attrs *attrs)
+{
+	free_pages((unsigned long) cpu_addr, get_order(size));
+}
+
+#endif /* _ASM_X86_XEN_PAGE_COHERENT_H */
-- 
cgit 


From 4174a7a4f763ed51809a4dbca06de054d31c1d38 Mon Sep 17 00:00:00 2001
From: Anthony Olech <anthony.olech.opensource@diasemi.com>
Date: Wed, 9 Oct 2013 17:44:38 +0100
Subject: regmap: Fix regmap_bulk_write single-rw mutex deadlock

When regmap_bulk_write() is called with the map->use_single_rw flag set
an immediate mutex deadlock happens because regmap_raw_write() is called
after obtaining the mutex and regmap_raw_write() itself then tries to
obtain the mutex as well.

It is obvious that no one other than myself tried it with a real device.
I did, but only for the purposes of an experiment and demonstration.

But even if this situation will never ever happen with a real device, it
is a bug and therefore should be fixed.

Signed-off-by: Anthony Olech <anthony.olech.opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/base/regmap/regmap.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 7d689a15c500..c1245cae0f43 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1418,10 +1418,11 @@ int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val,
 	 */
 	if (map->use_single_rw) {
 		for (i = 0; i < val_count; i++) {
-			ret = regmap_raw_write(map,
-					       reg + (i * map->reg_stride),
-					       val + (i * val_bytes),
-					       val_bytes);
+			ret = _regmap_raw_write(map,
+						reg + (i * map->reg_stride),
+						val + (i * val_bytes),
+						val_bytes,
+						false);
 			if (ret != 0)
 				return ret;
 		}
-- 
cgit 


From 4c850ead98ec52a00af5bedb3ef75963d914e844 Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Tue, 8 Oct 2013 19:31:02 +0530
Subject: regulator: tps65090: get regulators node from parent node only

As per the devicetree binding document of TPS65090, the "regulators"
subnode should be under the parent node, not outside of parent node.
Hence to get the regulator node, the correct call is
of_get_child_by_name() rather than of_find_node_by_name() which searches
the "regulators" node from the parent node to end of DTS file.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/tps65090-regulator.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/tps65090-regulator.c b/drivers/regulator/tps65090-regulator.c
index c8e70451df38..f302d3199fae 100644
--- a/drivers/regulator/tps65090-regulator.c
+++ b/drivers/regulator/tps65090-regulator.c
@@ -180,7 +180,7 @@ static struct tps65090_platform_data *tps65090_parse_dt_reg_data(
 		return ERR_PTR(-ENOMEM);
 	}
 
-	regulators = of_find_node_by_name(np, "regulators");
+	regulators = of_get_child_by_name(np, "regulators");
 	if (!regulators) {
 		dev_err(&pdev->dev, "regulator node not found\n");
 		return ERR_PTR(-ENODEV);
-- 
cgit 


From 712c967fec612f572d9eea5d031278512f642cf8 Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Tue, 8 Oct 2013 19:31:03 +0530
Subject: regulator: tps6586x: get regulators node from parent node only

As per the devicetree binding document of TPS6586x, the "regulators"
subnode should be under the parent node, not outside of parent node.
Hence to get the regulator node, the correct call is
of_get_child_by_name() rather than of_find_node_by_name() which searches
the "regulators" node from the parent node to end of DTS file.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/tps6586x-regulator.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/tps6586x-regulator.c b/drivers/regulator/tps6586x-regulator.c
index 2c9155b66f09..c8e9742a4468 100644
--- a/drivers/regulator/tps6586x-regulator.c
+++ b/drivers/regulator/tps6586x-regulator.c
@@ -298,7 +298,7 @@ static struct tps6586x_platform_data *tps6586x_parse_regulator_dt(
 	struct tps6586x_platform_data *pdata;
 	int err;
 
-	regs = of_find_node_by_name(np, "regulators");
+	regs = of_get_child_by_name(np, "regulators");
 	if (!regs) {
 		dev_err(&pdev->dev, "regulator node not found\n");
 		return NULL;
-- 
cgit 


From 4ae1ff7fe8ad70dfe984ea7586ced00294359b47 Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Tue, 8 Oct 2013 19:31:04 +0530
Subject: regulator: tps65910: get regulators node from parent node only

As per the devicetree binding document of TPS65910, the "regulators"
subnode should be under the parent node, not outside of parent node.
Hence to get the regulator node, the correct call is
of_get_child_by_name() rather than of_find_node_by_name() which searches
the "regulators" node from the parent node to end of DTS file.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/tps65910-regulator.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c
index 45c16447744b..95ebc67a3da4 100644
--- a/drivers/regulator/tps65910-regulator.c
+++ b/drivers/regulator/tps65910-regulator.c
@@ -982,7 +982,7 @@ static struct tps65910_board *tps65910_parse_dt_reg_data(
 	}
 
 	np = of_node_get(pdev->dev.parent->of_node);
-	regulators = of_find_node_by_name(np, "regulators");
+	regulators = of_get_child_by_name(np, "regulators");
 	if (!regulators) {
 		dev_err(&pdev->dev, "regulator node not found\n");
 		return NULL;
-- 
cgit 


From 5db542ed85b5e88346675f672dbd2eefa52005f4 Mon Sep 17 00:00:00 2001
From: Illia Smyrnov <illia.smyrnov@globallogic.com>
Date: Wed, 9 Oct 2013 15:05:08 +0300
Subject: spi: omap2-mcspi: Fix FIFO support for transmit-and-receive mode

This patch fixes MCSPI FIFO buffer support when transmit-and-receive
(full duplex) mode is used. In this mode FIFO can be used for RX or
for TX or for both directions. If FIFO used for both directions the buffer
is split into two 32-byte buffers - one for each direction.
Also for full duplex mode both AEL and AFL need to be set in CHCONF0 register.

Signed-off-by: Illia Smyrnov <illia.smyrnov@globallogic.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-omap2-mcspi.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c
index ed4af4708d9a..32dca0c55358 100644
--- a/drivers/spi/spi-omap2-mcspi.c
+++ b/drivers/spi/spi-omap2-mcspi.c
@@ -276,7 +276,7 @@ static void omap2_mcspi_set_fifo(const struct spi_device *spi,
 	struct omap2_mcspi_cs *cs = spi->controller_state;
 	struct omap2_mcspi *mcspi;
 	unsigned int wcnt;
-	int fifo_depth, bytes_per_word;
+	int max_fifo_depth, fifo_depth, bytes_per_word;
 	u32 chconf, xferlevel;
 
 	mcspi = spi_master_get_devdata(master);
@@ -287,7 +287,12 @@ static void omap2_mcspi_set_fifo(const struct spi_device *spi,
 		if (t->len % bytes_per_word != 0)
 			goto disable_fifo;
 
-		fifo_depth = gcd(t->len, OMAP2_MCSPI_MAX_FIFODEPTH);
+		if (t->rx_buf != NULL && t->tx_buf != NULL)
+			max_fifo_depth = OMAP2_MCSPI_MAX_FIFODEPTH / 2;
+		else
+			max_fifo_depth = OMAP2_MCSPI_MAX_FIFODEPTH;
+
+		fifo_depth = gcd(t->len, max_fifo_depth);
 		if (fifo_depth < 2 || fifo_depth % bytes_per_word != 0)
 			goto disable_fifo;
 
@@ -299,7 +304,8 @@ static void omap2_mcspi_set_fifo(const struct spi_device *spi,
 		if (t->rx_buf != NULL) {
 			chconf |= OMAP2_MCSPI_CHCONF_FFER;
 			xferlevel |= (fifo_depth - 1) << 8;
-		} else {
+		}
+		if (t->tx_buf != NULL) {
 			chconf |= OMAP2_MCSPI_CHCONF_FFET;
 			xferlevel |= fifo_depth - 1;
 		}
-- 
cgit 


From 3d7d562ca4a884089344eb13451b5903a18d3817 Mon Sep 17 00:00:00 2001
From: Yuval Mintz <yuvalmin@broadcom.com>
Date: Wed, 9 Oct 2013 16:06:28 +0200
Subject: bnx2x: Add ndo_get_phys_port_id support

Each network interface (either PF or VF) is identified by its port's MAC id.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x.h      |   3 +
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c |  23 ++++
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c | 149 +++++++++++++++++++----
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.h |   7 ++
 4 files changed, 155 insertions(+), 27 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index 8fe4bcb2407d..5fb18cd99da2 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -1546,6 +1546,7 @@ struct bnx2x {
 #define IS_VF_FLAG			(1 << 22)
 #define INTERRUPTS_ENABLED_FLAG		(1 << 23)
 #define BC_SUPPORTS_RMMOD_CMD		(1 << 24)
+#define HAS_PHYS_PORT_ID		(1 << 25)
 
 #define BP_NOMCP(bp)			((bp)->flags & NO_MCP_FLAG)
 
@@ -1876,6 +1877,8 @@ struct bnx2x {
 	u32 dump_preset_idx;
 	bool					stats_started;
 	struct semaphore			stats_sema;
+
+	u8					phys_port_id[ETH_ALEN];
 };
 
 /* Tx queues may be less or equal to Rx queues */
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 13a569460ef2..e53ff1eb3a84 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -11149,6 +11149,14 @@ static void bnx2x_get_mac_hwinfo(struct bnx2x *bp)
 			bnx2x_get_cnic_mac_hwinfo(bp);
 	}
 
+	if (!BP_NOMCP(bp)) {
+		/* Read physical port identifier from shmem */
+		val2 = SHMEM_RD(bp, dev_info.port_hw_config[port].mac_upper);
+		val = SHMEM_RD(bp, dev_info.port_hw_config[port].mac_lower);
+		bnx2x_set_mac_buf(bp->phys_port_id, val, val2);
+		bp->flags |= HAS_PHYS_PORT_ID;
+	}
+
 	memcpy(bp->link_params.mac_addr, bp->dev->dev_addr, ETH_ALEN);
 
 	if (!bnx2x_is_valid_ether_addr(bp, bp->dev->dev_addr))
@@ -12044,6 +12052,20 @@ static int bnx2x_validate_addr(struct net_device *dev)
 	return 0;
 }
 
+static int bnx2x_get_phys_port_id(struct net_device *netdev,
+				  struct netdev_phys_port_id *ppid)
+{
+	struct bnx2x *bp = netdev_priv(netdev);
+
+	if (!(bp->flags & HAS_PHYS_PORT_ID))
+		return -EOPNOTSUPP;
+
+	ppid->id_len = sizeof(bp->phys_port_id);
+	memcpy(ppid->id, bp->phys_port_id, ppid->id_len);
+
+	return 0;
+}
+
 static const struct net_device_ops bnx2x_netdev_ops = {
 	.ndo_open		= bnx2x_open,
 	.ndo_stop		= bnx2x_close,
@@ -12073,6 +12095,7 @@ static const struct net_device_ops bnx2x_netdev_ops = {
 #ifdef CONFIG_NET_RX_BUSY_POLL
 	.ndo_busy_poll		= bnx2x_low_latency_recv,
 #endif
+	.ndo_get_phys_port_id	= bnx2x_get_phys_port_id,
 };
 
 static int bnx2x_set_coherency_mask(struct bnx2x *bp)
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
index da16953eb2ec..58dc89af7c6a 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
@@ -60,6 +60,30 @@ void bnx2x_vfpf_finalize(struct bnx2x *bp, struct vfpf_first_tlv *first_tlv)
 	mutex_unlock(&bp->vf2pf_mutex);
 }
 
+/* Finds a TLV by type in a TLV buffer; If found, returns pointer to the TLV */
+static void *bnx2x_search_tlv_list(struct bnx2x *bp, void *tlvs_list,
+				   enum channel_tlvs req_tlv)
+{
+	struct channel_tlv *tlv = (struct channel_tlv *)tlvs_list;
+
+	do {
+		if (tlv->type == req_tlv)
+			return tlv;
+
+		if (!tlv->length) {
+			BNX2X_ERR("Found TLV with length 0\n");
+			return NULL;
+		}
+
+		tlvs_list += tlv->length;
+		tlv = (struct channel_tlv *)tlvs_list;
+	} while (tlv->type != CHANNEL_TLV_LIST_END);
+
+	DP(BNX2X_MSG_IOV, "TLV list does not contain %d TLV\n", req_tlv);
+
+	return NULL;
+}
+
 /* list the types and lengths of the tlvs on the buffer */
 void bnx2x_dp_tlv_list(struct bnx2x *bp, void *tlvs_list)
 {
@@ -196,6 +220,7 @@ int bnx2x_vfpf_acquire(struct bnx2x *bp, u8 tx_count, u8 rx_count)
 	int rc = 0, attempts = 0;
 	struct vfpf_acquire_tlv *req = &bp->vf2pf_mbox->req.acquire;
 	struct pfvf_acquire_resp_tlv *resp = &bp->vf2pf_mbox->resp.acquire_resp;
+	struct vfpf_port_phys_id_resp_tlv *phys_port_resp;
 	u32 vf_id;
 	bool resources_acquired = false;
 
@@ -219,8 +244,14 @@ int bnx2x_vfpf_acquire(struct bnx2x *bp, u8 tx_count, u8 rx_count)
 	/* pf 2 vf bulletin board address */
 	req->bulletin_addr = bp->pf2vf_bulletin_mapping;
 
+	/* Request physical port identifier */
+	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length,
+		      CHANNEL_TLV_PHYS_PORT_ID, sizeof(struct channel_tlv));
+
 	/* add list termination tlv */
-	bnx2x_add_tlv(bp, req, req->first_tlv.tl.length, CHANNEL_TLV_LIST_END,
+	bnx2x_add_tlv(bp, req,
+		      req->first_tlv.tl.length + sizeof(struct channel_tlv),
+		      CHANNEL_TLV_LIST_END,
 		      sizeof(struct channel_list_end_tlv));
 
 	/* output tlvs list */
@@ -287,6 +318,15 @@ int bnx2x_vfpf_acquire(struct bnx2x *bp, u8 tx_count, u8 rx_count)
 		}
 	}
 
+	/* Retrieve physical port id (if possible) */
+	phys_port_resp = (struct vfpf_port_phys_id_resp_tlv *)
+			 bnx2x_search_tlv_list(bp, resp,
+					       CHANNEL_TLV_PHYS_PORT_ID);
+	if (phys_port_resp) {
+		memcpy(bp->phys_port_id, phys_port_resp->id, ETH_ALEN);
+		bp->flags |= HAS_PHYS_PORT_ID;
+	}
+
 	/* get HW info */
 	bp->common.chip_id |= (bp->acquire_resp.pfdev_info.chip_num & 0xffff);
 	bp->link_params.chip_id = bp->common.chip_id;
@@ -983,53 +1023,59 @@ static int bnx2x_copy32_vf_dmae(struct bnx2x *bp, u8 from_vf,
 	return bnx2x_issue_dmae_with_comp(bp, &dmae);
 }
 
-static void bnx2x_vf_mbx_resp(struct bnx2x *bp, struct bnx2x_virtf *vf)
+static void bnx2x_vf_mbx_resp_single_tlv(struct bnx2x *bp,
+					 struct bnx2x_virtf *vf)
 {
 	struct bnx2x_vf_mbx *mbx = BP_VF_MBX(bp, vf->index);
-	u64 vf_addr;
-	dma_addr_t pf_addr;
 	u16 length, type;
-	int rc;
-	struct pfvf_general_resp_tlv *resp = &mbx->msg->resp.general_resp;
 
 	/* prepare response */
 	type = mbx->first_tlv.tl.type;
 	length = type == CHANNEL_TLV_ACQUIRE ?
 		sizeof(struct pfvf_acquire_resp_tlv) :
 		sizeof(struct pfvf_general_resp_tlv);
-	bnx2x_add_tlv(bp, resp, 0, type, length);
-	resp->hdr.status = bnx2x_pfvf_status_codes(vf->op_rc);
-	bnx2x_add_tlv(bp, resp, length, CHANNEL_TLV_LIST_END,
+	bnx2x_add_tlv(bp, &mbx->msg->resp, 0, type, length);
+	bnx2x_add_tlv(bp, &mbx->msg->resp, length, CHANNEL_TLV_LIST_END,
 		      sizeof(struct channel_list_end_tlv));
+}
+
+static void bnx2x_vf_mbx_resp_send_msg(struct bnx2x *bp,
+				       struct bnx2x_virtf *vf)
+{
+	struct bnx2x_vf_mbx *mbx = BP_VF_MBX(bp, vf->index);
+	struct pfvf_general_resp_tlv *resp = &mbx->msg->resp.general_resp;
+	dma_addr_t pf_addr;
+	u64 vf_addr;
+	int rc;
+
 	bnx2x_dp_tlv_list(bp, resp);
 	DP(BNX2X_MSG_IOV, "mailbox vf address hi 0x%x, lo 0x%x, offset 0x%x\n",
 	   mbx->vf_addr_hi, mbx->vf_addr_lo, mbx->first_tlv.resp_msg_offset);
 
+	resp->hdr.status = bnx2x_pfvf_status_codes(vf->op_rc);
+
 	/* send response */
 	vf_addr = HILO_U64(mbx->vf_addr_hi, mbx->vf_addr_lo) +
 		  mbx->first_tlv.resp_msg_offset;
 	pf_addr = mbx->msg_mapping +
 		  offsetof(struct bnx2x_vf_mbx_msg, resp);
 
-	/* copy the response body, if there is one, before the header, as the vf
-	 * is sensitive to the header being written
+	/* Copy the response buffer. The first u64 is written afterwards, as
+	 * the vf is sensitive to the header being written
 	 */
-	if (resp->hdr.tl.length > sizeof(u64)) {
-		length = resp->hdr.tl.length - sizeof(u64);
-		vf_addr += sizeof(u64);
-		pf_addr += sizeof(u64);
-		rc = bnx2x_copy32_vf_dmae(bp, false, pf_addr, vf->abs_vfid,
-					  U64_HI(vf_addr),
-					  U64_LO(vf_addr),
-					  length/4);
-		if (rc) {
-			BNX2X_ERR("Failed to copy response body to VF %d\n",
-				  vf->abs_vfid);
-			goto mbx_error;
-		}
-		vf_addr -= sizeof(u64);
-		pf_addr -= sizeof(u64);
+	vf_addr += sizeof(u64);
+	pf_addr += sizeof(u64);
+	rc = bnx2x_copy32_vf_dmae(bp, false, pf_addr, vf->abs_vfid,
+				  U64_HI(vf_addr),
+				  U64_LO(vf_addr),
+				  (sizeof(union pfvf_tlvs) - sizeof(u64))/4);
+	if (rc) {
+		BNX2X_ERR("Failed to copy response body to VF %d\n",
+			  vf->abs_vfid);
+		goto mbx_error;
 	}
+	vf_addr -= sizeof(u64);
+	pf_addr -= sizeof(u64);
 
 	/* ack the FW */
 	storm_memset_vf_mbx_ack(bp, vf->abs_vfid);
@@ -1060,6 +1106,36 @@ mbx_error:
 	bnx2x_vf_release(bp, vf, false); /* non blocking */
 }
 
+static void bnx2x_vf_mbx_resp(struct bnx2x *bp,
+				       struct bnx2x_virtf *vf)
+{
+	bnx2x_vf_mbx_resp_single_tlv(bp, vf);
+	bnx2x_vf_mbx_resp_send_msg(bp, vf);
+}
+
+static void bnx2x_vf_mbx_resp_phys_port(struct bnx2x *bp,
+					struct bnx2x_virtf *vf,
+					void *buffer,
+					u16 *offset)
+{
+	struct vfpf_port_phys_id_resp_tlv *port_id;
+
+	if (!(bp->flags & HAS_PHYS_PORT_ID))
+		return;
+
+	bnx2x_add_tlv(bp, buffer, *offset, CHANNEL_TLV_PHYS_PORT_ID,
+		      sizeof(struct vfpf_port_phys_id_resp_tlv));
+
+	port_id = (struct vfpf_port_phys_id_resp_tlv *)
+		  (((u8 *)buffer) + *offset);
+	memcpy(port_id->id, bp->phys_port_id, ETH_ALEN);
+
+	/* Offset should continue representing the offset to the tail
+	 * of TLV data (outside this function scope)
+	 */
+	*offset += sizeof(struct vfpf_port_phys_id_resp_tlv);
+}
+
 static void bnx2x_vf_mbx_acquire_resp(struct bnx2x *bp, struct bnx2x_virtf *vf,
 				      struct bnx2x_vf_mbx *mbx, int vfop_status)
 {
@@ -1067,6 +1143,7 @@ static void bnx2x_vf_mbx_acquire_resp(struct bnx2x *bp, struct bnx2x_virtf *vf,
 	struct pfvf_acquire_resp_tlv *resp = &mbx->msg->resp.acquire_resp;
 	struct pf_vf_resc *resc = &resp->resc;
 	u8 status = bnx2x_pfvf_status_codes(vfop_status);
+	u16 length;
 
 	memset(resp, 0, sizeof(*resp));
 
@@ -1140,9 +1217,24 @@ static void bnx2x_vf_mbx_acquire_resp(struct bnx2x *bp, struct bnx2x_virtf *vf,
 			resc->hw_sbs[i].sb_qid);
 	DP_CONT(BNX2X_MSG_IOV, "]\n");
 
+	/* prepare response */
+	length = sizeof(struct pfvf_acquire_resp_tlv);
+	bnx2x_add_tlv(bp, &mbx->msg->resp, 0, CHANNEL_TLV_ACQUIRE, length);
+
+	/* Handle possible VF requests for physical port identifiers.
+	 * 'length' should continue to indicate the offset of the first empty
+	 * place in the buffer (i.e., where next TLV should be inserted)
+	 */
+	if (bnx2x_search_tlv_list(bp, &mbx->msg->req,
+				  CHANNEL_TLV_PHYS_PORT_ID))
+		bnx2x_vf_mbx_resp_phys_port(bp, vf, &mbx->msg->resp, &length);
+
+	bnx2x_add_tlv(bp, &mbx->msg->resp, length, CHANNEL_TLV_LIST_END,
+		      sizeof(struct channel_list_end_tlv));
+
 	/* send the response */
 	vf->op_rc = vfop_status;
-	bnx2x_vf_mbx_resp(bp, vf);
+	bnx2x_vf_mbx_resp_send_msg(bp, vf);
 }
 
 static void bnx2x_vf_mbx_acquire(struct bnx2x *bp, struct bnx2x_virtf *vf,
@@ -1874,6 +1966,9 @@ void bnx2x_vf_mbx(struct bnx2x *bp, struct vf_pf_event_data *vfpf_event)
 	/* process the VF message header */
 	mbx->first_tlv = mbx->msg->req.first_tlv;
 
+	/* Clean response buffer to refrain from falsely seeing chains */
+	memset(&mbx->msg->resp, 0, sizeof(union pfvf_tlvs));
+
 	/* dispatch the request (will prepare the response) */
 	bnx2x_vf_mbx_request(bp, vf, mbx);
 	goto mbx_done;
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.h
index 1179fe06d0c7..208568bc7a71 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.h
@@ -188,6 +188,12 @@ struct pfvf_acquire_resp_tlv {
 	} resc;
 };
 
+struct vfpf_port_phys_id_resp_tlv {
+	struct channel_tlv tl;
+	u8 id[ETH_ALEN];
+	u8 padding[2];
+};
+
 #define VFPF_INIT_FLG_STATS_COALESCE	(1 << 0) /* when set the VFs queues
 						  * stats will be coalesced on
 						  * the leading RSS queue
@@ -398,6 +404,7 @@ enum channel_tlvs {
 	CHANNEL_TLV_PF_SET_MAC,
 	CHANNEL_TLV_PF_SET_VLAN,
 	CHANNEL_TLV_UPDATE_RSS,
+	CHANNEL_TLV_PHYS_PORT_ID,
 	CHANNEL_TLV_MAX
 };
 
-- 
cgit 


From fc67297b16da335d610af2fac96233d51146300a Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Fri, 13 Sep 2013 15:27:43 +0900
Subject: perf tools: Separate out GTK codes to libperf-gtk.so

Separate out GTK codes to a shared object called libperf-gtk.so.  This
time only GTK codes are built with -fPIC and libperf remains as is.  Now
run GTK hist and annotation browser using libdl.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Pekka Enberg <penberg@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1379053663-13706-1-git-send-email-namhyung@kernel.org
[ Fix it up wrt Ingo's tools/perf build speedups ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Makefile.perf      | 42 +++++++++++++++++++++--------
 tools/perf/builtin-annotate.c | 26 +++++++++++++++---
 tools/perf/builtin-report.c   | 16 ++++++++++--
 tools/perf/config/Makefile    | 12 ++++++---
 tools/perf/ui/gtk/annotate.c  | 13 ++++++---
 tools/perf/ui/gtk/gtk.h       | 16 ++++++++++++
 tools/perf/ui/setup.c         | 61 +++++++++++++++++++++++++++++++++++++++++--
 tools/perf/ui/ui.h            | 12 +--------
 tools/perf/util/annotate.h    | 24 -----------------
 tools/perf/util/hist.h        | 15 -----------
 tools/perf/util/util.h        |  2 ++
 11 files changed, 165 insertions(+), 74 deletions(-)

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index a24f6c280b95..40c39c39ce80 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -114,6 +114,7 @@ SPARSE_FLAGS = -D__BIG_ENDIAN__ -D__powerpc__
 BUILTIN_OBJS =
 LIB_H =
 LIB_OBJS =
+GTK_OBJS =
 PYRF_OBJS =
 SCRIPT_SH =
 
@@ -490,13 +491,19 @@ ifndef NO_SLANG
 endif
 
 ifndef NO_GTK2
-  LIB_OBJS += $(OUTPUT)ui/gtk/browser.o
-  LIB_OBJS += $(OUTPUT)ui/gtk/hists.o
-  LIB_OBJS += $(OUTPUT)ui/gtk/setup.o
-  LIB_OBJS += $(OUTPUT)ui/gtk/util.o
-  LIB_OBJS += $(OUTPUT)ui/gtk/helpline.o
-  LIB_OBJS += $(OUTPUT)ui/gtk/progress.o
-  LIB_OBJS += $(OUTPUT)ui/gtk/annotate.o
+  ALL_PROGRAMS += $(OUTPUT)libperf-gtk.so
+
+  GTK_OBJS += $(OUTPUT)ui/gtk/browser.o
+  GTK_OBJS += $(OUTPUT)ui/gtk/hists.o
+  GTK_OBJS += $(OUTPUT)ui/gtk/setup.o
+  GTK_OBJS += $(OUTPUT)ui/gtk/util.o
+  GTK_OBJS += $(OUTPUT)ui/gtk/helpline.o
+  GTK_OBJS += $(OUTPUT)ui/gtk/progress.o
+  GTK_OBJS += $(OUTPUT)ui/gtk/annotate.o
+
+install-gtk: $(OUTPUT)libperf-gtk.so
+	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(libdir_SQ)'
+	$(INSTALL) $(OUTPUT)libperf-gtk.so '$(DESTDIR_SQ)$(libdir_SQ)'
 endif
 
 ifndef NO_LIBPERL
@@ -550,6 +557,12 @@ $(OUTPUT)perf: $(OUTPUT)perf.o $(BUILTIN_OBJS) $(PERFLIBS)
 	$(QUIET_LINK)$(CC) $(CFLAGS) $(LDFLAGS) $(OUTPUT)perf.o \
                $(BUILTIN_OBJS) $(LIBS) -o $@
 
+$(GTK_OBJS): $(OUTPUT)%.o: %.c $(LIB_H)
+	$(QUIET_CC)$(CC) -o $@ -c -fPIC $(CFLAGS) $(GTK_CFLAGS) $<
+
+$(OUTPUT)libperf-gtk.so: $(GTK_OBJS) $(PERFLIBS)
+	$(QUIET_LINK)$(CC) -o $@ -shared $(ALL_LDFLAGS) $(filter %.o,$^) $(GTK_LIBS)
+
 $(OUTPUT)builtin-help.o: builtin-help.c $(OUTPUT)common-cmds.h $(OUTPUT)PERF-CFLAGS
 	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) \
 		'-DPERF_HTML_PATH="$(htmldir_SQ)"' \
@@ -632,6 +645,9 @@ $(OUTPUT)tests/python-use.o: tests/python-use.c $(OUTPUT)PERF-CFLAGS
 $(OUTPUT)util/config.o: util/config.c $(OUTPUT)PERF-CFLAGS
 	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $<
 
+$(OUTPUT)ui/setup.o: ui/setup.c $(OUTPUT)PERF-CFLAGS
+	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DLIBDIR='"$(libdir_SQ)"' $<
+
 $(OUTPUT)ui/browser.o: ui/browser.c $(OUTPUT)PERF-CFLAGS
 	$(QUIET_CC)$(CC) -o $@ -c $(CFLAGS) -DENABLE_SLFUTURE_CONST $<
 
@@ -673,7 +689,8 @@ $(patsubst perf-%,%.o,$(PROGRAMS)): $(LIB_H) $(wildcard */*.h)
 
 # we compile into subdirectories. if the target directory is not the source directory, they might not exists. So
 # we depend the various files onto their directories.
-DIRECTORY_DEPS = $(LIB_OBJS) $(BUILTIN_OBJS) $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h
+DIRECTORY_DEPS = $(LIB_OBJS) $(BUILTIN_OBJS) $(GTK_OBJS)
+DIRECTORY_DEPS += $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)common-cmds.h
 $(DIRECTORY_DEPS): | $(sort $(dir $(DIRECTORY_DEPS)))
 # In the second step, we make a rule to actually create these directories
 $(sort $(dir $(DIRECTORY_DEPS))):
@@ -786,7 +803,9 @@ check: $(OUTPUT)common-cmds.h
 
 ### Installation rules
 
-install-bin: all
+install-gtk:
+
+install-bin: all install-gtk
 	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(bindir_SQ)'
 	$(INSTALL) $(OUTPUT)perf '$(DESTDIR_SQ)$(bindir_SQ)'
 	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
@@ -831,7 +850,8 @@ config-clean:
 	@$(MAKE) -C config/feature-checks clean
 
 clean: $(LIBTRACEEVENT)-clean $(LIBLK)-clean config-clean
-	$(RM) $(LIB_OBJS) $(BUILTIN_OBJS) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf.o $(LANG_BINDINGS)
+	$(RM) $(LIB_OBJS) $(BUILTIN_OBJS) $(LIB_FILE) $(GTK_OBJS)
+	$(RM) $(OUTPUT)perf-archive $(OUTPUT)perf.o $(LANG_BINDINGS)
 	$(RM) $(ALL_PROGRAMS) perf
 	$(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope*
 	$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) clean
@@ -850,7 +870,7 @@ else
     GIT-HEAD-PHONY =
 endif
 
-.PHONY: all install clean config-clean strip
+.PHONY: all install clean config-clean strip install-gtk
 .PHONY: shell_compatibility_test please_set_SHELL_PATH_to_a_more_modern_shell
 .PHONY: $(GIT-HEAD-PHONY) TAGS tags cscope .FORCE-PERF-CFLAGS
 
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 0393d9800516..94f9a8e78117 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -30,6 +30,7 @@
 #include "util/tool.h"
 #include "arch/common.h"
 
+#include <dlfcn.h>
 #include <linux/bitmap.h>
 
 struct perf_annotate {
@@ -142,8 +143,18 @@ find_next:
 
 		if (use_browser == 2) {
 			int ret;
+			int (*annotate)(struct hist_entry *he,
+					struct perf_evsel *evsel,
+					struct hist_browser_timer *hbt);
+
+			annotate = dlsym(perf_gtk_handle,
+					 "hist_entry__gtk_annotate");
+			if (annotate == NULL) {
+				ui__error("GTK browser not found!\n");
+				return;
+			}
 
-			ret = hist_entry__gtk_annotate(he, evsel, NULL);
+			ret = annotate(he, evsel, NULL);
 			if (!ret || !ann->skip_missing)
 				return;
 
@@ -247,8 +258,17 @@ static int __cmd_annotate(struct perf_annotate *ann)
 		goto out_delete;
 	}
 
-	if (use_browser == 2)
-		perf_gtk__show_annotations();
+	if (use_browser == 2) {
+		void (*show_annotations)(void);
+
+		show_annotations = dlsym(perf_gtk_handle,
+					 "perf_gtk__show_annotations");
+		if (show_annotations == NULL) {
+			ui__error("GTK browser not found!\n");
+			goto out_delete;
+		}
+		show_annotations();
+	}
 
 out_delete:
 	/*
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 06e1abe351dd..21b5c2f54c2a 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -35,6 +35,7 @@
 #include "util/hist.h"
 #include "arch/common.h"
 
+#include <dlfcn.h>
 #include <linux/bitmap.h>
 
 struct perf_report {
@@ -591,8 +592,19 @@ static int __cmd_report(struct perf_report *rep)
 				ret = 0;
 
 		} else if (use_browser == 2) {
-			perf_evlist__gtk_browse_hists(session->evlist, help,
-						      NULL, rep->min_percent);
+			int (*hist_browser)(struct perf_evlist *,
+					    const char *,
+					    struct hist_browser_timer *,
+					    float min_pcnt);
+
+			hist_browser = dlsym(perf_gtk_handle,
+					     "perf_evlist__gtk_browse_hists");
+			if (hist_browser == NULL) {
+				ui__error("GTK browser not found!\n");
+				return ret;
+			}
+			hist_browser(session->evlist, help, NULL,
+				     rep->min_percent);
 		}
 	} else
 		perf_evlist__tty_browse_hists(session->evlist, rep, help);
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index f5d661f5637d..d9bba8d57c40 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -377,11 +377,11 @@ ifndef NO_GTK2
     NO_GTK2 := 1
   else
     ifeq ($(feature-gtk2-infobar), 1)
-      CFLAGS += -DHAVE_GTK_INFO_BAR_SUPPORT
+      GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
     endif
     CFLAGS += -DHAVE_GTK2_SUPPORT
-    CFLAGS += $(shell pkg-config --cflags gtk+-2.0 2>/dev/null)
-    EXTLIBS += $(shell pkg-config --libs gtk+-2.0 2>/dev/null)
+    GTK_CFLAGS += $(shell pkg-config --cflags gtk+-2.0 2>/dev/null)
+    GTK_LIBS := $(shell pkg-config --libs gtk+-2.0 2>/dev/null)
   endif
 endif
 
@@ -554,7 +554,12 @@ else
 sysconfdir = $(prefix)/etc
 ETC_PERFCONFIG = etc/perfconfig
 endif
+ifeq ($(IS_X86_64),1)
+lib = lib64
+else
 lib = lib
+endif
+libdir = $(prefix)/$(lib)
 
 # Shell quote (do not use $(call) to accommodate ancient setups);
 ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
@@ -567,6 +572,7 @@ template_dir_SQ = $(subst ','\'',$(template_dir))
 htmldir_SQ = $(subst ','\'',$(htmldir))
 prefix_SQ = $(subst ','\'',$(prefix))
 sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
+libdir_SQ = $(subst ','\'',$(libdir))
 
 ifneq ($(filter /%,$(firstword $(perfexecdir))),)
 perfexec_instdir = $(perfexecdir)
diff --git a/tools/perf/ui/gtk/annotate.c b/tools/perf/ui/gtk/annotate.c
index f538794615db..9c7ff8d31b27 100644
--- a/tools/perf/ui/gtk/annotate.c
+++ b/tools/perf/ui/gtk/annotate.c
@@ -154,9 +154,9 @@ static int perf_gtk__annotate_symbol(GtkWidget *window, struct symbol *sym,
 	return 0;
 }
 
-int symbol__gtk_annotate(struct symbol *sym, struct map *map,
-			 struct perf_evsel *evsel,
-			 struct hist_browser_timer *hbt)
+static int symbol__gtk_annotate(struct symbol *sym, struct map *map,
+				struct perf_evsel *evsel,
+				struct hist_browser_timer *hbt)
 {
 	GtkWidget *window;
 	GtkWidget *notebook;
@@ -226,6 +226,13 @@ int symbol__gtk_annotate(struct symbol *sym, struct map *map,
 	return 0;
 }
 
+int hist_entry__gtk_annotate(struct hist_entry *he,
+			     struct perf_evsel *evsel,
+			     struct hist_browser_timer *hbt)
+{
+	return symbol__gtk_annotate(he->ms.sym, he->ms.map, evsel, hbt);
+}
+
 void perf_gtk__show_annotations(void)
 {
 	GtkWidget *window;
diff --git a/tools/perf/ui/gtk/gtk.h b/tools/perf/ui/gtk/gtk.h
index a72acbc565e0..8576cf194872 100644
--- a/tools/perf/ui/gtk/gtk.h
+++ b/tools/perf/ui/gtk/gtk.h
@@ -20,6 +20,9 @@ struct perf_gtk_context {
 	guint statbar_ctx_id;
 };
 
+int perf_gtk__init(void);
+void perf_gtk__exit(bool wait_for_ok);
+
 extern struct perf_gtk_context *pgctx;
 
 static inline bool perf_gtk__is_active_context(struct perf_gtk_context *ctx)
@@ -48,4 +51,17 @@ static inline GtkWidget *perf_gtk__setup_info_bar(void)
 }
 #endif
 
+struct perf_evsel;
+struct perf_evlist;
+struct hist_entry;
+struct hist_browser_timer;
+
+int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist, const char *help,
+				  struct hist_browser_timer *hbt,
+				  float min_pcnt);
+int hist_entry__gtk_annotate(struct hist_entry *he,
+			     struct perf_evsel *evsel,
+			     struct hist_browser_timer *hbt);
+void perf_gtk__show_annotations(void);
+
 #endif /* _PERF_GTK_H_ */
diff --git a/tools/perf/ui/setup.c b/tools/perf/ui/setup.c
index 47d9a571f261..5df5140a9f29 100644
--- a/tools/perf/ui/setup.c
+++ b/tools/perf/ui/setup.c
@@ -1,10 +1,64 @@
 #include <pthread.h>
+#include <dlfcn.h>
 
 #include "../util/cache.h"
 #include "../util/debug.h"
 #include "../util/hist.h"
 
 pthread_mutex_t ui__lock = PTHREAD_MUTEX_INITIALIZER;
+void *perf_gtk_handle;
+
+#ifdef HAVE_GTK2_SUPPORT
+static int setup_gtk_browser(void)
+{
+	int (*perf_ui_init)(void);
+
+	if (perf_gtk_handle)
+		return 0;
+
+	perf_gtk_handle = dlopen(PERF_GTK_DSO, RTLD_LAZY);
+	if (perf_gtk_handle == NULL) {
+		char buf[PATH_MAX];
+		scnprintf(buf, sizeof(buf), "%s/%s", LIBDIR, PERF_GTK_DSO);
+		perf_gtk_handle = dlopen(buf, RTLD_LAZY);
+	}
+	if (perf_gtk_handle == NULL)
+		return -1;
+
+	perf_ui_init = dlsym(perf_gtk_handle, "perf_gtk__init");
+	if (perf_ui_init == NULL)
+		goto out_close;
+
+	if (perf_ui_init() == 0)
+		return 0;
+
+out_close:
+	dlclose(perf_gtk_handle);
+	return -1;
+}
+
+static void exit_gtk_browser(bool wait_for_ok)
+{
+	void (*perf_ui_exit)(bool);
+
+	if (perf_gtk_handle == NULL)
+		return;
+
+	perf_ui_exit = dlsym(perf_gtk_handle, "perf_gtk__exit");
+	if (perf_ui_exit == NULL)
+		goto out_close;
+
+	perf_ui_exit(wait_for_ok);
+
+out_close:
+	dlclose(perf_gtk_handle);
+
+	perf_gtk_handle = NULL;
+}
+#else
+static inline int setup_gtk_browser(void) { return -1; }
+static inline void exit_gtk_browser(bool wait_for_ok __maybe_unused) {}
+#endif
 
 void setup_browser(bool fallback_to_pager)
 {
@@ -17,8 +71,11 @@ void setup_browser(bool fallback_to_pager)
 
 	switch (use_browser) {
 	case 2:
-		if (perf_gtk__init() == 0)
+		if (setup_gtk_browser() == 0)
 			break;
+		printf("GTK browser requested but could not find %s\n",
+		       PERF_GTK_DSO);
+		sleep(1);
 		/* fall through */
 	case 1:
 		use_browser = 1;
@@ -39,7 +96,7 @@ void exit_browser(bool wait_for_ok)
 {
 	switch (use_browser) {
 	case 2:
-		perf_gtk__exit(wait_for_ok);
+		exit_gtk_browser(wait_for_ok);
 		break;
 
 	case 1:
diff --git a/tools/perf/ui/ui.h b/tools/perf/ui/ui.h
index 1349d142a005..ab88383f8be8 100644
--- a/tools/perf/ui/ui.h
+++ b/tools/perf/ui/ui.h
@@ -6,6 +6,7 @@
 #include <linux/compiler.h>
 
 extern pthread_mutex_t ui__lock;
+extern void *perf_gtk_handle;
 
 extern int use_browser;
 
@@ -23,17 +24,6 @@ static inline int ui__init(void)
 static inline void ui__exit(bool wait_for_ok __maybe_unused) {}
 #endif
 
-#ifdef HAVE_GTK2_SUPPORT
-int perf_gtk__init(void);
-void perf_gtk__exit(bool wait_for_ok);
-#else
-static inline int perf_gtk__init(void)
-{
-	return -1;
-}
-static inline void perf_gtk__exit(bool wait_for_ok __maybe_unused) {}
-#endif
-
 void ui__refresh_dimensions(bool force);
 
 #endif /* _PERF_UI_H_ */
diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h
index f0699e9bcc6f..834b7b57b788 100644
--- a/tools/perf/util/annotate.h
+++ b/tools/perf/util/annotate.h
@@ -165,30 +165,6 @@ static inline int symbol__tui_annotate(struct symbol *sym __maybe_unused,
 }
 #endif
 
-#ifdef HAVE_GTK2_SUPPORT
-int symbol__gtk_annotate(struct symbol *sym, struct map *map,
-			 struct perf_evsel *evsel,
-			 struct hist_browser_timer *hbt);
-
-static inline int hist_entry__gtk_annotate(struct hist_entry *he,
-					   struct perf_evsel *evsel,
-					   struct hist_browser_timer *hbt)
-{
-	return symbol__gtk_annotate(he->ms.sym, he->ms.map, evsel, hbt);
-}
-
-void perf_gtk__show_annotations(void);
-#else
-static inline int hist_entry__gtk_annotate(struct hist_entry *he __maybe_unused,
-				struct perf_evsel *evsel __maybe_unused,
-				struct hist_browser_timer *hbt __maybe_unused)
-{
-	return 0;
-}
-
-static inline void perf_gtk__show_annotations(void) {}
-#endif
-
 extern const char	*disassembler_style;
 
 #endif	/* __PERF_ANNOTATE_H */
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index ed4f90ebe0d5..20b175808cd3 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -228,20 +228,5 @@ static inline int script_browse(const char *script_opt __maybe_unused)
 #define K_SWITCH_INPUT_DATA -3000
 #endif
 
-#ifdef HAVE_GTK2_SUPPORT
-int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist, const char *help,
-				  struct hist_browser_timer *hbt __maybe_unused,
-				  float min_pcnt);
-#else
-static inline
-int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist __maybe_unused,
-				  const char *help __maybe_unused,
-				  struct hist_browser_timer *hbt __maybe_unused,
-				  float min_pcnt __maybe_unused)
-{
-	return 0;
-}
-#endif
-
 unsigned int hists__sort_list_width(struct hists *self);
 #endif	/* __PERF_HIST_H */
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index c29ecaabf461..7fd840bf6b62 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -128,6 +128,8 @@ void put_tracing_file(char *file);
 #endif
 #endif
 
+#define PERF_GTK_DSO  "libperf-gtk.so"
+
 /* General helper functions */
 extern void usage(const char *err) NORETURN;
 extern void die(const char *err, ...) NORETURN __attribute__((format (printf, 1, 2)));
-- 
cgit 


From 963ba5fd5d04f36d6a5c9a94562484a4f270c1de Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Wed, 11 Sep 2013 14:09:25 +0900
Subject: perf sort: Fix a memory leak on srcline

In the hist_entry__srcline_snprintf(), path and self->srcline are
pointing the same memory region, but they are doubly allocated.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1378876173-13363-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/sort.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index b4ecc0e4c908..97cf3ef4417c 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -269,10 +269,7 @@ static int hist_entry__srcline_snprintf(struct hist_entry *self, char *bf,
 	if (!fp)
 		goto out_ip;
 
-	if (getline(&path, &line_len, fp) < 0 || !line_len)
-		goto out_ip;
-	self->srcline = strdup(path);
-	if (self->srcline == NULL)
+	if (getline(&self->srcline, &line_len, fp) < 0 || !line_len)
 		goto out_ip;
 
 	nl = strchr(self->srcline, '\n');
-- 
cgit 


From 89da393c171926d3372f573d752be5ced98038eb Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Wed, 11 Sep 2013 14:09:26 +0900
Subject: perf annotate: Reuse path from the result of addr2line

In the symbol__get_source_line(), path and src_line->path will have same
value, but they were allocated separately, and leaks one.  Just share
path to src_line->path.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1378876173-13363-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/annotate.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 7eae5488ecea..c6fd1870f278 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1143,11 +1143,7 @@ static int symbol__get_source_line(struct symbol *sym, struct map *map,
 		if (getline(&path, &line_len, fp) < 0 || !line_len)
 			goto next_close;
 
-		src_line->path = malloc(sizeof(char) * line_len + 1);
-		if (!src_line->path)
-			goto next_close;
-
-		strcpy(src_line->path, path);
+		src_line->path = path;
 		insert_source_line(&tmp_root, src_line);
 
 	next_close:
-- 
cgit 


From 909b143162de7af310d2a9351220030260ebe728 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Wed, 11 Sep 2013 14:09:27 +0900
Subject: perf hists: Free srcline when freeing hist_entry

We've been leaked srcline of hist_entry, it should be freed also.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1378876173-13363-4-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/hist.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index f3278a388e9a..e6fc38a86e2c 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -535,6 +535,7 @@ void hist_entry__free(struct hist_entry *he)
 {
 	free(he->branch_info);
 	free(he->mem_info);
+	free(he->srcline);
 	free(he);
 }
 
-- 
cgit 


From f048d548f803b57ee1dbf66702f398ba69657450 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Wed, 11 Sep 2013 14:09:28 +0900
Subject: perf annotate: Factor out get/free_srcline()

Currently external addr2line tool is used for srcline sort key and
annotate with srcline info.  Separate the common code to prepare
upcoming enhancements.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1378876173-13363-5-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Makefile.perf   |  1 +
 tools/perf/util/annotate.c | 20 ++---------
 tools/perf/util/hist.c     |  2 +-
 tools/perf/util/sort.c     | 17 ++--------
 tools/perf/util/srcline.c  | 83 ++++++++++++++++++++++++++++++++++++++++++++++
 tools/perf/util/util.h     |  5 +++
 6 files changed, 96 insertions(+), 32 deletions(-)
 create mode 100644 tools/perf/util/srcline.c

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 40c39c39ce80..1f1361531f92 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -363,6 +363,7 @@ LIB_OBJS += $(OUTPUT)util/intlist.o
 LIB_OBJS += $(OUTPUT)util/vdso.o
 LIB_OBJS += $(OUTPUT)util/stat.o
 LIB_OBJS += $(OUTPUT)util/record.o
+LIB_OBJS += $(OUTPUT)util/srcline.o
 
 LIB_OBJS += $(OUTPUT)ui/setup.o
 LIB_OBJS += $(OUTPUT)ui/helpline.o
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index c6fd1870f278..d48297d77e19 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1070,7 +1070,7 @@ static void symbol__free_source_line(struct symbol *sym, int len)
 			  (sizeof(src_line->p) * (src_line->nr_pcnt - 1));
 
 	for (i = 0; i < len; i++) {
-		free(src_line->path);
+		free_srcline(src_line->path);
 		src_line = (void *)src_line + sizeof_src_line;
 	}
 
@@ -1087,7 +1087,6 @@ static int symbol__get_source_line(struct symbol *sym, struct map *map,
 	u64 start;
 	int i, k;
 	int evidx = evsel->idx;
-	char cmd[PATH_MAX * 2];
 	struct source_line *src_line;
 	struct annotation *notes = symbol__annotation(sym);
 	struct sym_hist *h = annotation__histogram(notes, evidx);
@@ -1115,10 +1114,7 @@ static int symbol__get_source_line(struct symbol *sym, struct map *map,
 	start = map__rip_2objdump(map, sym->start);
 
 	for (i = 0; i < len; i++) {
-		char *path = NULL;
-		size_t line_len;
 		u64 offset;
-		FILE *fp;
 		double percent_max = 0.0;
 
 		src_line->nr_pcnt = nr_pcnt;
@@ -1135,19 +1131,9 @@ static int symbol__get_source_line(struct symbol *sym, struct map *map,
 			goto next;
 
 		offset = start + i;
-		sprintf(cmd, "addr2line -e %s %016" PRIx64, filename, offset);
-		fp = popen(cmd, "r");
-		if (!fp)
-			goto next;
-
-		if (getline(&path, &line_len, fp) < 0 || !line_len)
-			goto next_close;
-
-		src_line->path = path;
+		src_line->path = get_srcline(filename, offset);
 		insert_source_line(&tmp_root, src_line);
 
-	next_close:
-		pclose(fp);
 	next:
 		src_line = (void *)src_line + sizeof_src_line;
 	}
@@ -1188,7 +1174,7 @@ static void print_summary(struct rb_root *root, const char *filename)
 
 		path = src_line->path;
 		color = get_percent_color(percent_max);
-		color_fprintf(stdout, color, " %s", path);
+		color_fprintf(stdout, color, " %s\n", path);
 
 		node = rb_next(node);
 	}
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index e6fc38a86e2c..cca03831f41a 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -535,7 +535,7 @@ void hist_entry__free(struct hist_entry *he)
 {
 	free(he->branch_info);
 	free(he->mem_info);
-	free(he->srcline);
+	free_srcline(he->srcline);
 	free(he);
 }
 
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 97cf3ef4417c..b7e0ef0445de 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -251,8 +251,7 @@ static int hist_entry__srcline_snprintf(struct hist_entry *self, char *bf,
 					unsigned int width __maybe_unused)
 {
 	FILE *fp = NULL;
-	char cmd[PATH_MAX + 2], *path = self->srcline, *nl;
-	size_t line_len;
+	char *path = self->srcline;
 
 	if (path != NULL)
 		goto out_path;
@@ -263,19 +262,9 @@ static int hist_entry__srcline_snprintf(struct hist_entry *self, char *bf,
 	if (!strncmp(self->ms.map->dso->long_name, "/tmp/perf-", 10))
 		goto out_ip;
 
-	snprintf(cmd, sizeof(cmd), "addr2line -e %s %016" PRIx64,
-		 self->ms.map->dso->long_name, self->ip);
-	fp = popen(cmd, "r");
-	if (!fp)
-		goto out_ip;
-
-	if (getline(&self->srcline, &line_len, fp) < 0 || !line_len)
-		goto out_ip;
+	path = get_srcline(self->ms.map->dso->long_name, self->ip);
+	self->srcline = path;
 
-	nl = strchr(self->srcline, '\n');
-	if (nl != NULL)
-		*nl = '\0';
-	path = self->srcline;
 out_path:
 	if (fp)
 		pclose(fp);
diff --git a/tools/perf/util/srcline.c b/tools/perf/util/srcline.c
new file mode 100644
index 000000000000..7e92cca6f502
--- /dev/null
+++ b/tools/perf/util/srcline.c
@@ -0,0 +1,83 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <linux/kernel.h>
+
+#include "util/util.h"
+#include "util/debug.h"
+
+static int addr2line(const char *dso_name, unsigned long addr,
+		     char **file, unsigned int *line_nr)
+{
+	FILE *fp;
+	char cmd[PATH_MAX];
+	char *filename = NULL;
+	size_t len;
+	char *sep;
+	int ret = 0;
+
+	scnprintf(cmd, sizeof(cmd), "addr2line -e %s %016"PRIx64,
+		  dso_name, addr);
+
+	fp = popen(cmd, "r");
+	if (fp == NULL) {
+		pr_warning("popen failed for %s\n", dso_name);
+		return 0;
+	}
+
+	if (getline(&filename, &len, fp) < 0 || !len) {
+		pr_warning("addr2line has no output for %s\n", dso_name);
+		goto out;
+	}
+
+	sep = strchr(filename, '\n');
+	if (sep)
+		*sep = '\0';
+
+	if (!strcmp(filename, "??:0")) {
+		pr_debug("no debugging info in %s\n", dso_name);
+		free(filename);
+		goto out;
+	}
+
+	sep = strchr(filename, ':');
+	if (sep) {
+		*sep++ = '\0';
+		*file = filename;
+		*line_nr = strtoul(sep, NULL, 0);
+		ret = 1;
+	}
+out:
+	pclose(fp);
+	return ret;
+}
+
+char *get_srcline(const char *dso_name, unsigned long addr)
+{
+	char *file;
+	unsigned line;
+	char *srcline;
+	size_t size;
+
+	if (!addr2line(dso_name, addr, &file, &line))
+		return SRCLINE_UNKNOWN;
+
+	/* just calculate actual length */
+	size = snprintf(NULL, 0, "%s:%u", file, line) + 1;
+
+	srcline = malloc(size);
+	if (srcline)
+		snprintf(srcline, size, "%s:%u", file, line);
+	else
+		srcline = SRCLINE_UNKNOWN;
+
+	free(file);
+	return srcline;
+}
+
+void free_srcline(char *srcline)
+{
+	if (srcline && strcmp(srcline, SRCLINE_UNKNOWN) != 0)
+		free(srcline);
+}
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 7fd840bf6b62..7c8b43fa8898 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -297,4 +297,9 @@ struct parse_tag {
 };
 
 unsigned long parse_tag_value(const char *str, struct parse_tag *tags);
+
+#define SRCLINE_UNKNOWN  ((char *) "??:0")
+
+char *get_srcline(const char *dso_name, unsigned long addr);
+void free_srcline(char *srcline);
 #endif /* GIT_COMPAT_UTIL_H */
-- 
cgit 


From 58d91a0068694a5ba3efc99e88ce6b4b0dd0d085 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Wed, 11 Sep 2013 14:09:29 +0900
Subject: perf tools: Do not try to call addr2line on non-binary files

No need to call addr2line since they don't have such information.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1378876173-13363-6-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/sort.c    |  3 ---
 tools/perf/util/srcline.c | 11 +++++++++--
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index b7e0ef0445de..d4435939c774 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -259,9 +259,6 @@ static int hist_entry__srcline_snprintf(struct hist_entry *self, char *bf,
 	if (!self->ms.map)
 		goto out_ip;
 
-	if (!strncmp(self->ms.map->dso->long_name, "/tmp/perf-", 10))
-		goto out_ip;
-
 	path = get_srcline(self->ms.map->dso->long_name, self->ip);
 	self->srcline = path;
 
diff --git a/tools/perf/util/srcline.c b/tools/perf/util/srcline.c
index 7e92cca6f502..777f91880cdb 100644
--- a/tools/perf/util/srcline.c
+++ b/tools/perf/util/srcline.c
@@ -57,11 +57,17 @@ char *get_srcline(const char *dso_name, unsigned long addr)
 {
 	char *file;
 	unsigned line;
-	char *srcline;
+	char *srcline = SRCLINE_UNKNOWN;
 	size_t size;
 
+	if (dso_name[0] == '[')
+		goto out;
+
+	if (!strncmp(dso_name, "/tmp/perf-", 10))
+		goto out;
+
 	if (!addr2line(dso_name, addr, &file, &line))
-		return SRCLINE_UNKNOWN;
+		goto out;
 
 	/* just calculate actual length */
 	size = snprintf(NULL, 0, "%s:%u", file, line) + 1;
@@ -73,6 +79,7 @@ char *get_srcline(const char *dso_name, unsigned long addr)
 		srcline = SRCLINE_UNKNOWN;
 
 	free(file);
+out:
 	return srcline;
 }
 
-- 
cgit 


From 86c98cab5a3137376ea7df5ffa5bd52e545fee95 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Wed, 11 Sep 2013 14:09:30 +0900
Subject: perf annotate: Pass dso instead of dso_name to get_srcline()

This is a preparation of next change.  No functional changes are
intended.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1378876173-13363-7-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/annotate.c | 11 ++++-------
 tools/perf/util/dso.h      |  1 +
 tools/perf/util/sort.c     |  2 +-
 tools/perf/util/srcline.c  |  4 +++-
 tools/perf/util/util.h     |  4 +++-
 5 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index d48297d77e19..d73e8008aada 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -1081,8 +1081,7 @@ static void symbol__free_source_line(struct symbol *sym, int len)
 /* Get the filename:line for the colored entries */
 static int symbol__get_source_line(struct symbol *sym, struct map *map,
 				   struct perf_evsel *evsel,
-				   struct rb_root *root, int len,
-				   const char *filename)
+				   struct rb_root *root, int len)
 {
 	u64 start;
 	int i, k;
@@ -1131,7 +1130,7 @@ static int symbol__get_source_line(struct symbol *sym, struct map *map,
 			goto next;
 
 		offset = start + i;
-		src_line->path = get_srcline(filename, offset);
+		src_line->path = get_srcline(map->dso, offset);
 		insert_source_line(&tmp_root, src_line);
 
 	next:
@@ -1338,7 +1337,6 @@ int symbol__tty_annotate(struct symbol *sym, struct map *map,
 			 bool full_paths, int min_pcnt, int max_lines)
 {
 	struct dso *dso = map->dso;
-	const char *filename = dso->long_name;
 	struct rb_root source_line = RB_ROOT;
 	u64 len;
 
@@ -1348,9 +1346,8 @@ int symbol__tty_annotate(struct symbol *sym, struct map *map,
 	len = symbol__size(sym);
 
 	if (print_lines) {
-		symbol__get_source_line(sym, map, evsel, &source_line,
-					len, filename);
-		print_summary(&source_line, filename);
+		symbol__get_source_line(sym, map, evsel, &source_line, len);
+		print_summary(&source_line, dso->long_name);
 	}
 
 	symbol__annotate_printf(sym, map, evsel, full_paths,
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index dbd9241ea290..72eedd65fc2d 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -6,6 +6,7 @@
 #include <stdbool.h>
 #include "types.h"
 #include "map.h"
+#include "build-id.h"
 
 enum dso_binary_type {
 	DSO_BINARY_TYPE__KALLSYMS = 0,
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index d4435939c774..f732120e8bc6 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -259,7 +259,7 @@ static int hist_entry__srcline_snprintf(struct hist_entry *self, char *bf,
 	if (!self->ms.map)
 		goto out_ip;
 
-	path = get_srcline(self->ms.map->dso->long_name, self->ip);
+	path = get_srcline(self->ms.map->dso, self->ip);
 	self->srcline = path;
 
 out_path:
diff --git a/tools/perf/util/srcline.c b/tools/perf/util/srcline.c
index 777f91880cdb..c736d9428cf2 100644
--- a/tools/perf/util/srcline.c
+++ b/tools/perf/util/srcline.c
@@ -4,6 +4,7 @@
 
 #include <linux/kernel.h>
 
+#include "util/dso.h"
 #include "util/util.h"
 #include "util/debug.h"
 
@@ -53,11 +54,12 @@ out:
 	return ret;
 }
 
-char *get_srcline(const char *dso_name, unsigned long addr)
+char *get_srcline(struct dso *dso, unsigned long addr)
 {
 	char *file;
 	unsigned line;
 	char *srcline = SRCLINE_UNKNOWN;
+	char *dso_name = dso->long_name;
 	size_t size;
 
 	if (dso_name[0] == '[')
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 7c8b43fa8898..1f06ba44cd53 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -300,6 +300,8 @@ unsigned long parse_tag_value(const char *str, struct parse_tag *tags);
 
 #define SRCLINE_UNKNOWN  ((char *) "??:0")
 
-char *get_srcline(const char *dso_name, unsigned long addr);
+struct dso;
+
+char *get_srcline(struct dso *dso, unsigned long addr);
 void free_srcline(char *srcline);
 #endif /* GIT_COMPAT_UTIL_H */
-- 
cgit 


From 2cc9d0ef577975abb3ebce7d5978559ec1c73633 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Wed, 11 Sep 2013 14:09:31 +0900
Subject: perf tools: Save failed result of get_srcline()

Some dso's lack srcline info, so there's no point to keep trying on
them.  Just save failture status and skip them.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1378876173-13363-8-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/dso.c     |  1 +
 tools/perf/util/dso.h     |  1 +
 tools/perf/util/srcline.c | 10 ++++++++--
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index 6bfc8aacaf7c..af4c687cc49b 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -450,6 +450,7 @@ struct dso *dso__new(const char *name)
 		dso->rel = 0;
 		dso->sorted_by_name = 0;
 		dso->has_build_id = 0;
+		dso->has_srcline = 1;
 		dso->kernel = DSO_TYPE_USER;
 		dso->needs_swap = DSO_SWAP__UNSET;
 		INIT_LIST_HEAD(&dso->node);
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index 72eedd65fc2d..9ac666abbe7e 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -83,6 +83,7 @@ struct dso {
 	enum dso_binary_type	data_type;
 	u8		 adjust_symbols:1;
 	u8		 has_build_id:1;
+	u8		 has_srcline:1;
 	u8		 hit:1;
 	u8		 annotate_warned:1;
 	u8		 sname_alloc:1;
diff --git a/tools/perf/util/srcline.c b/tools/perf/util/srcline.c
index c736d9428cf2..dcff10bed7da 100644
--- a/tools/perf/util/srcline.c
+++ b/tools/perf/util/srcline.c
@@ -58,10 +58,13 @@ char *get_srcline(struct dso *dso, unsigned long addr)
 {
 	char *file;
 	unsigned line;
-	char *srcline = SRCLINE_UNKNOWN;
+	char *srcline;
 	char *dso_name = dso->long_name;
 	size_t size;
 
+	if (!dso->has_srcline)
+		return SRCLINE_UNKNOWN;
+
 	if (dso_name[0] == '[')
 		goto out;
 
@@ -81,8 +84,11 @@ char *get_srcline(struct dso *dso, unsigned long addr)
 		srcline = SRCLINE_UNKNOWN;
 
 	free(file);
-out:
 	return srcline;
+
+out:
+	dso->has_srcline = 0;
+	return SRCLINE_UNKNOWN;
 }
 
 void free_srcline(char *srcline)
-- 
cgit 


From 207df49e75a8fe3270bee79f22978b7af53fd797 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@meshcoding.com>
Date: Sat, 21 Sep 2013 13:46:56 +0200
Subject: MAINTAINERS: batman-adv - update emails

Update my and Marek Lindner's email in the MAINTAINERS file

Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 MAINTAINERS | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 43dfc821c584..7a86b44a4c56 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1652,9 +1652,9 @@ F:	drivers/video/backlight/
 F:	include/linux/backlight.h
 
 BATMAN ADVANCED
-M:	Marek Lindner <lindner_marek@yahoo.de>
+M:	Marek Lindner <mareklindner@neomailbox.ch>
 M:	Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
-M:	Antonio Quartulli <ordex@autistici.org>
+M:	Antonio Quartulli <antonio@meshcoding.com>
 L:	b.a.t.m.a.n@lists.open-mesh.org
 W:	http://www.open-mesh.org/
 S:	Maintained
-- 
cgit 


From 60cf7981b770e329a05734d1e6eb055f13219202 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <ordex@autistici.org>
Date: Sat, 20 Apr 2013 15:59:13 +0200
Subject: batman-adv: switch to a new packet compatibility version
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

With this change batman-adv is breaking compatibility with
older versions and it is moving to compat-version 15.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Martin Hundebøll <martin@hundeboll.net>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
---
 net/batman-adv/packet.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index a51ccfc39da4..11a22c8c3cbb 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -48,7 +48,7 @@ enum batadv_subtype {
 };
 
 /* this file is included by batctl which needs these defines */
-#define BATADV_COMPAT_VERSION 14
+#define BATADV_COMPAT_VERSION 15
 
 enum batadv_iv_flags {
 	BATADV_NOT_BEST_NEXT_HOP   = BIT(3),
-- 
cgit 


From ef26157747d42254453f6b3ac2bd8bd3c53339c3 Mon Sep 17 00:00:00 2001
From: Marek Lindner <lindner_marek@yahoo.de>
Date: Tue, 23 Apr 2013 21:39:57 +0800
Subject: batman-adv: tvlv - basic infrastructure

The goal is to provide the infrastructure for sending, receiving and
parsing information 'containers' while preserving backward
compatibility. TVLV (based on the commonly known Type Length Value
technique) was chosen as the format for those containers. Even if a
node does not know the tvlv type of a certain container it can simply
skip the current container and proceed with the next. Past experience
has shown features evolve over time, so a 'version' field was added
right from the start to allow differentiating between feature
variants - hence the name: T(ype) V(ersion) L(ength) V(alue).

This patch introduces the basic TVLV infrastructure:
 * register / unregister tvlv containers to be sent with each OGM
   (on primary interfaces only)
 * register / unregister callback handlers to be called upon
   finding the corresponding tvlv type in a tvlv buffer
 * unicast tvlv send / receive API calls

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Spyros Gasteratos <morfeas3000@gmail.com>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/bat_iv_ogm.c |  38 +--
 net/batman-adv/main.c       | 575 ++++++++++++++++++++++++++++++++++++++++++++
 net/batman-adv/main.h       |  35 +++
 net/batman-adv/packet.h     |  41 ++++
 net/batman-adv/routing.c    |  48 ++++
 net/batman-adv/routing.h    |   2 +
 net/batman-adv/types.h      |  72 ++++++
 7 files changed, 794 insertions(+), 17 deletions(-)

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 0a8a80cd4bf1..f7dd7e51fff4 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -207,12 +207,12 @@ static uint8_t batadv_hop_penalty(uint8_t tq,
 
 /* is there another aggregated packet here? */
 static int batadv_iv_ogm_aggr_packet(int buff_pos, int packet_len,
-				     int tt_num_changes)
+				     __be16 tvlv_len)
 {
 	int next_buff_pos = 0;
 
 	next_buff_pos += buff_pos + BATADV_OGM_HLEN;
-	next_buff_pos += batadv_tt_len(tt_num_changes);
+	next_buff_pos += ntohs(tvlv_len);
 
 	return (next_buff_pos <= packet_len) &&
 	       (next_buff_pos <= BATADV_MAX_AGGREGATION_BYTES);
@@ -240,7 +240,7 @@ static void batadv_iv_ogm_send_to_if(struct batadv_forw_packet *forw_packet,
 
 	/* adjust all flags and log packets */
 	while (batadv_iv_ogm_aggr_packet(buff_pos, forw_packet->packet_len,
-					 batadv_ogm_packet->tt_num_changes)) {
+					 batadv_ogm_packet->tvlv_len)) {
 		/* we might have aggregated direct link packets with an
 		 * ordinary base packet
 		 */
@@ -267,7 +267,7 @@ static void batadv_iv_ogm_send_to_if(struct batadv_forw_packet *forw_packet,
 			   hard_iface->net_dev->dev_addr);
 
 		buff_pos += BATADV_OGM_HLEN;
-		buff_pos += batadv_tt_len(batadv_ogm_packet->tt_num_changes);
+		buff_pos += ntohs(batadv_ogm_packet->tvlv_len);
 		packet_num++;
 		packet_pos = forw_packet->skb->data + buff_pos;
 		batadv_ogm_packet = (struct batadv_ogm_packet *)packet_pos;
@@ -601,7 +601,7 @@ static void batadv_iv_ogm_forward(struct batadv_orig_node *orig_node,
 				  struct batadv_hard_iface *if_incoming)
 {
 	struct batadv_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
-	uint8_t tt_num_changes;
+	uint16_t tvlv_len;
 
 	if (batadv_ogm_packet->header.ttl <= 1) {
 		batadv_dbg(BATADV_DBG_BATMAN, bat_priv, "ttl exceeded\n");
@@ -621,7 +621,7 @@ static void batadv_iv_ogm_forward(struct batadv_orig_node *orig_node,
 			return;
 	}
 
-	tt_num_changes = batadv_ogm_packet->tt_num_changes;
+	tvlv_len = ntohs(batadv_ogm_packet->tvlv_len);
 
 	batadv_ogm_packet->header.ttl--;
 	memcpy(batadv_ogm_packet->prev_sender, ethhdr->h_source, ETH_ALEN);
@@ -642,7 +642,7 @@ static void batadv_iv_ogm_forward(struct batadv_orig_node *orig_node,
 		batadv_ogm_packet->flags &= ~BATADV_DIRECTLINK;
 
 	batadv_iv_ogm_queue_add(bat_priv, (unsigned char *)batadv_ogm_packet,
-				BATADV_OGM_HLEN + batadv_tt_len(tt_num_changes),
+				BATADV_OGM_HLEN + tvlv_len,
 				if_incoming, 0, batadv_iv_ogm_fwd_send_time());
 }
 
@@ -691,16 +691,18 @@ static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
 	int vis_server, tt_num_changes = 0;
 	uint32_t seqno;
 	uint8_t bandwidth;
+	uint16_t tvlv_len = 0;
 
 	vis_server = atomic_read(&bat_priv->vis_mode);
 	primary_if = batadv_primary_if_get_selected(bat_priv);
 
 	if (hard_iface == primary_if)
-		tt_num_changes = batadv_tt_append_diff(bat_priv, ogm_buff,
-						       ogm_buff_len,
-						       BATADV_OGM_HLEN);
+		tvlv_len = batadv_tvlv_container_ogm_append(bat_priv, ogm_buff,
+							    ogm_buff_len,
+							    BATADV_OGM_HLEN);
 
 	batadv_ogm_packet = (struct batadv_ogm_packet *)(*ogm_buff);
+	batadv_ogm_packet->tvlv_len = htons(tvlv_len);
 
 	/* change sequence number to network order */
 	seqno = (uint32_t)atomic_read(&hard_iface->bat_iv.ogm_seqno);
@@ -1254,6 +1256,8 @@ static void batadv_iv_ogm_process(const struct ethhdr *ethhdr,
 		goto out;
 	}
 
+	batadv_tvlv_ogm_receive(bat_priv, batadv_ogm_packet, orig_node);
+
 	/* if sender is a direct neighbor the sender mac equals
 	 * originator mac
 	 */
@@ -1350,9 +1354,9 @@ static int batadv_iv_ogm_receive(struct sk_buff *skb,
 	struct batadv_ogm_packet *batadv_ogm_packet;
 	struct ethhdr *ethhdr;
 	int buff_pos = 0, packet_len;
-	unsigned char *tt_buff, *packet_buff;
-	bool ret;
+	unsigned char *tvlv_buff, *packet_buff;
 	uint8_t *packet_pos;
+	bool ret;
 
 	ret = batadv_check_management_packet(skb, if_incoming, BATADV_OGM_HLEN);
 	if (!ret)
@@ -1375,14 +1379,14 @@ static int batadv_iv_ogm_receive(struct sk_buff *skb,
 
 	/* unpack the aggregated packets and process them one by one */
 	while (batadv_iv_ogm_aggr_packet(buff_pos, packet_len,
-					 batadv_ogm_packet->tt_num_changes)) {
-		tt_buff = packet_buff + buff_pos + BATADV_OGM_HLEN;
+					 batadv_ogm_packet->tvlv_len)) {
+		tvlv_buff = packet_buff + buff_pos + BATADV_OGM_HLEN;
 
-		batadv_iv_ogm_process(ethhdr, batadv_ogm_packet, tt_buff,
-				      if_incoming);
+		batadv_iv_ogm_process(ethhdr, batadv_ogm_packet,
+				      tvlv_buff, if_incoming);
 
 		buff_pos += BATADV_OGM_HLEN;
-		buff_pos += batadv_tt_len(batadv_ogm_packet->tt_num_changes);
+		buff_pos += ntohs(batadv_ogm_packet->tvlv_len);
 
 		packet_pos = packet_buff + buff_pos;
 		batadv_ogm_packet = (struct batadv_ogm_packet *)packet_pos;
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index 1356af660b5b..e2de68a5b0c6 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -36,6 +36,7 @@
 #include "gateway_client.h"
 #include "bridge_loop_avoidance.h"
 #include "distributed-arp-table.h"
+#include "unicast.h"
 #include "vis.h"
 #include "hash.h"
 #include "bat_algo.h"
@@ -112,6 +113,8 @@ int batadv_mesh_init(struct net_device *soft_iface)
 	spin_lock_init(&bat_priv->gw.list_lock);
 	spin_lock_init(&bat_priv->vis.hash_lock);
 	spin_lock_init(&bat_priv->vis.list_lock);
+	spin_lock_init(&bat_priv->tvlv.container_list_lock);
+	spin_lock_init(&bat_priv->tvlv.handler_list_lock);
 
 	INIT_HLIST_HEAD(&bat_priv->forw_bat_list);
 	INIT_HLIST_HEAD(&bat_priv->forw_bcast_list);
@@ -119,6 +122,8 @@ int batadv_mesh_init(struct net_device *soft_iface)
 	INIT_LIST_HEAD(&bat_priv->tt.changes_list);
 	INIT_LIST_HEAD(&bat_priv->tt.req_list);
 	INIT_LIST_HEAD(&bat_priv->tt.roam_list);
+	INIT_HLIST_HEAD(&bat_priv->tvlv.container_list);
+	INIT_HLIST_HEAD(&bat_priv->tvlv.handler_list);
 
 	ret = batadv_originator_init(bat_priv);
 	if (ret < 0)
@@ -408,6 +413,8 @@ static void batadv_recv_handler_init(void)
 	batadv_rx_handler[BATADV_TT_QUERY] = batadv_recv_tt_query;
 	/* Roaming advertisement */
 	batadv_rx_handler[BATADV_ROAM_ADV] = batadv_recv_roam_adv;
+	/* unicast tvlv packet */
+	batadv_rx_handler[BATADV_UNICAST_TVLV] = batadv_recv_unicast_tvlv;
 }
 
 int
@@ -536,6 +543,574 @@ __be32 batadv_skb_crc32(struct sk_buff *skb, u8 *payload_ptr)
 	return htonl(crc);
 }
 
+/**
+ * batadv_tvlv_handler_free_ref - decrement the tvlv handler refcounter and
+ *  possibly free it
+ * @tvlv_handler: the tvlv handler to free
+ */
+static void
+batadv_tvlv_handler_free_ref(struct batadv_tvlv_handler *tvlv_handler)
+{
+	if (atomic_dec_and_test(&tvlv_handler->refcount))
+		kfree_rcu(tvlv_handler, rcu);
+}
+
+/**
+ * batadv_tvlv_handler_get - retrieve tvlv handler from the tvlv handler list
+ *  based on the provided type and version (both need to match)
+ * @bat_priv: the bat priv with all the soft interface information
+ * @type: tvlv handler type to look for
+ * @version: tvlv handler version to look for
+ *
+ * Returns tvlv handler if found or NULL otherwise.
+ */
+static struct batadv_tvlv_handler
+*batadv_tvlv_handler_get(struct batadv_priv *bat_priv,
+			 uint8_t type, uint8_t version)
+{
+	struct batadv_tvlv_handler *tvlv_handler_tmp, *tvlv_handler = NULL;
+
+	rcu_read_lock();
+	hlist_for_each_entry_rcu(tvlv_handler_tmp,
+				 &bat_priv->tvlv.handler_list, list) {
+		if (tvlv_handler_tmp->type != type)
+			continue;
+
+		if (tvlv_handler_tmp->version != version)
+			continue;
+
+		if (!atomic_inc_not_zero(&tvlv_handler_tmp->refcount))
+			continue;
+
+		tvlv_handler = tvlv_handler_tmp;
+		break;
+	}
+	rcu_read_unlock();
+
+	return tvlv_handler;
+}
+
+/**
+ * batadv_tvlv_container_free_ref - decrement the tvlv container refcounter and
+ *  possibly free it
+ * @tvlv_handler: the tvlv container to free
+ */
+static void batadv_tvlv_container_free_ref(struct batadv_tvlv_container *tvlv)
+{
+	if (atomic_dec_and_test(&tvlv->refcount))
+		kfree(tvlv);
+}
+
+/**
+ * batadv_tvlv_container_get - retrieve tvlv container from the tvlv container
+ *  list based on the provided type and version (both need to match)
+ * @bat_priv: the bat priv with all the soft interface information
+ * @type: tvlv container type to look for
+ * @version: tvlv container version to look for
+ *
+ * Has to be called with the appropriate locks being acquired
+ * (tvlv.container_list_lock).
+ *
+ * Returns tvlv container if found or NULL otherwise.
+ */
+static struct batadv_tvlv_container
+*batadv_tvlv_container_get(struct batadv_priv *bat_priv,
+			   uint8_t type, uint8_t version)
+{
+	struct batadv_tvlv_container *tvlv_tmp, *tvlv = NULL;
+
+	hlist_for_each_entry(tvlv_tmp, &bat_priv->tvlv.container_list, list) {
+		if (tvlv_tmp->tvlv_hdr.type != type)
+			continue;
+
+		if (tvlv_tmp->tvlv_hdr.version != version)
+			continue;
+
+		if (!atomic_inc_not_zero(&tvlv_tmp->refcount))
+			continue;
+
+		tvlv = tvlv_tmp;
+		break;
+	}
+
+	return tvlv;
+}
+
+/**
+ * batadv_tvlv_container_list_size - calculate the size of the tvlv container
+ *  list entries
+ * @bat_priv: the bat priv with all the soft interface information
+ *
+ * Has to be called with the appropriate locks being acquired
+ * (tvlv.container_list_lock).
+ *
+ * Returns size of all currently registered tvlv containers in bytes.
+ */
+static uint16_t batadv_tvlv_container_list_size(struct batadv_priv *bat_priv)
+{
+	struct batadv_tvlv_container *tvlv;
+	uint16_t tvlv_len = 0;
+
+	hlist_for_each_entry(tvlv, &bat_priv->tvlv.container_list, list) {
+		tvlv_len += sizeof(struct batadv_tvlv_hdr);
+		tvlv_len += ntohs(tvlv->tvlv_hdr.len);
+	}
+
+	return tvlv_len;
+}
+
+/**
+ * batadv_tvlv_container_remove - remove tvlv container from the tvlv container
+ *  list
+ * @tvlv: the to be removed tvlv container
+ *
+ * Has to be called with the appropriate locks being acquired
+ * (tvlv.container_list_lock).
+ */
+static void batadv_tvlv_container_remove(struct batadv_tvlv_container *tvlv)
+{
+	if (!tvlv)
+		return;
+
+	hlist_del(&tvlv->list);
+
+	/* first call to decrement the counter, second call to free */
+	batadv_tvlv_container_free_ref(tvlv);
+	batadv_tvlv_container_free_ref(tvlv);
+}
+
+/**
+ * batadv_tvlv_container_unregister - unregister tvlv container based on the
+ *  provided type and version (both need to match)
+ * @bat_priv: the bat priv with all the soft interface information
+ * @type: tvlv container type to unregister
+ * @version: tvlv container type to unregister
+ */
+void batadv_tvlv_container_unregister(struct batadv_priv *bat_priv,
+				      uint8_t type, uint8_t version)
+{
+	struct batadv_tvlv_container *tvlv;
+
+	spin_lock_bh(&bat_priv->tvlv.container_list_lock);
+	tvlv = batadv_tvlv_container_get(bat_priv, type, version);
+	batadv_tvlv_container_remove(tvlv);
+	spin_unlock_bh(&bat_priv->tvlv.container_list_lock);
+}
+
+/**
+ * batadv_tvlv_container_register - register tvlv type, version and content
+ *  to be propagated with each (primary interface) OGM
+ * @bat_priv: the bat priv with all the soft interface information
+ * @type: tvlv container type
+ * @version: tvlv container version
+ * @tvlv_value: tvlv container content
+ * @tvlv_value_len: tvlv container content length
+ *
+ * If a container of the same type and version was already registered the new
+ * content is going to replace the old one.
+ */
+void batadv_tvlv_container_register(struct batadv_priv *bat_priv,
+				    uint8_t type, uint8_t version,
+				    void *tvlv_value, uint16_t tvlv_value_len)
+{
+	struct batadv_tvlv_container *tvlv_old, *tvlv_new;
+
+	if (!tvlv_value)
+		tvlv_value_len = 0;
+
+	tvlv_new = kzalloc(sizeof(*tvlv_new) + tvlv_value_len, GFP_ATOMIC);
+	if (!tvlv_new)
+		return;
+
+	tvlv_new->tvlv_hdr.version = version;
+	tvlv_new->tvlv_hdr.type = type;
+	tvlv_new->tvlv_hdr.len = htons(tvlv_value_len);
+
+	memcpy(tvlv_new + 1, tvlv_value, ntohs(tvlv_new->tvlv_hdr.len));
+	INIT_HLIST_NODE(&tvlv_new->list);
+	atomic_set(&tvlv_new->refcount, 1);
+
+	spin_lock_bh(&bat_priv->tvlv.container_list_lock);
+	tvlv_old = batadv_tvlv_container_get(bat_priv, type, version);
+	batadv_tvlv_container_remove(tvlv_old);
+	hlist_add_head(&tvlv_new->list, &bat_priv->tvlv.container_list);
+	spin_unlock_bh(&bat_priv->tvlv.container_list_lock);
+}
+
+/**
+ * batadv_tvlv_realloc_packet_buff - reallocate packet buffer to accomodate
+ *  requested packet size
+ * @packet_buff: packet buffer
+ * @packet_buff_len: packet buffer size
+ * @packet_min_len: requested packet minimum size
+ * @additional_packet_len: requested additional packet size on top of minimum
+ *  size
+ *
+ * Returns true of the packet buffer could be changed to the requested size,
+ * false otherwise.
+ */
+static bool batadv_tvlv_realloc_packet_buff(unsigned char **packet_buff,
+					    int *packet_buff_len,
+					    int min_packet_len,
+					    int additional_packet_len)
+{
+	unsigned char *new_buff;
+
+	new_buff = kmalloc(min_packet_len + additional_packet_len, GFP_ATOMIC);
+
+	/* keep old buffer if kmalloc should fail */
+	if (new_buff) {
+		memcpy(new_buff, *packet_buff, min_packet_len);
+		kfree(*packet_buff);
+		*packet_buff = new_buff;
+		*packet_buff_len = min_packet_len + additional_packet_len;
+		return true;
+	}
+
+	return false;
+}
+
+/**
+ * batadv_tvlv_container_ogm_append - append tvlv container content to given
+ *  OGM packet buffer
+ * @bat_priv: the bat priv with all the soft interface information
+ * @packet_buff: ogm packet buffer
+ * @packet_buff_len: ogm packet buffer size including ogm header and tvlv
+ *  content
+ * @packet_min_len: ogm header size to be preserved for the OGM itself
+ *
+ * The ogm packet might be enlarged or shrunk depending on the current size
+ * and the size of the to-be-appended tvlv containers.
+ *
+ * Returns size of all appended tvlv containers in bytes.
+ */
+uint16_t batadv_tvlv_container_ogm_append(struct batadv_priv *bat_priv,
+					  unsigned char **packet_buff,
+					  int *packet_buff_len,
+					  int packet_min_len)
+{
+	struct batadv_tvlv_container *tvlv;
+	struct batadv_tvlv_hdr *tvlv_hdr;
+	uint16_t tvlv_value_len;
+	void *tvlv_value;
+	bool ret;
+
+	spin_lock_bh(&bat_priv->tvlv.container_list_lock);
+	tvlv_value_len = batadv_tvlv_container_list_size(bat_priv);
+
+	ret = batadv_tvlv_realloc_packet_buff(packet_buff, packet_buff_len,
+					      packet_min_len, tvlv_value_len);
+
+	if (!ret)
+		goto end;
+
+	if (!tvlv_value_len)
+		goto end;
+
+	tvlv_value = (*packet_buff) + packet_min_len;
+
+	hlist_for_each_entry(tvlv, &bat_priv->tvlv.container_list, list) {
+		tvlv_hdr = tvlv_value;
+		tvlv_hdr->type = tvlv->tvlv_hdr.type;
+		tvlv_hdr->version = tvlv->tvlv_hdr.version;
+		tvlv_hdr->len = tvlv->tvlv_hdr.len;
+		tvlv_value = tvlv_hdr + 1;
+		memcpy(tvlv_value, tvlv + 1, ntohs(tvlv->tvlv_hdr.len));
+		tvlv_value = (uint8_t *)tvlv_value + ntohs(tvlv->tvlv_hdr.len);
+	}
+
+end:
+	spin_unlock_bh(&bat_priv->tvlv.container_list_lock);
+	return tvlv_value_len;
+}
+
+/**
+ * batadv_tvlv_call_handler - parse the given tvlv buffer to call the
+ *  appropriate handlers
+ * @bat_priv: the bat priv with all the soft interface information
+ * @tvlv_handler: tvlv callback function handling the tvlv content
+ * @ogm_source: flag indicating wether the tvlv is an ogm or a unicast packet
+ * @orig_node: orig node emitting the ogm packet
+ * @src: source mac address of the unicast packet
+ * @dst: destination mac address of the unicast packet
+ * @tvlv_value: tvlv content
+ * @tvlv_value_len: tvlv content length
+ *
+ * Returns success if handler was not found or the return value of the handler
+ * callback.
+ */
+static int batadv_tvlv_call_handler(struct batadv_priv *bat_priv,
+				    struct batadv_tvlv_handler *tvlv_handler,
+				    bool ogm_source,
+				    struct batadv_orig_node *orig_node,
+				    uint8_t *src, uint8_t *dst,
+				    void *tvlv_value, uint16_t tvlv_value_len)
+{
+	if (!tvlv_handler)
+		return NET_RX_SUCCESS;
+
+	if (ogm_source) {
+		if (!tvlv_handler->ogm_handler)
+			return NET_RX_SUCCESS;
+
+		if (!orig_node)
+			return NET_RX_SUCCESS;
+
+		tvlv_handler->ogm_handler(bat_priv, orig_node,
+					  BATADV_NO_FLAGS,
+					  tvlv_value, tvlv_value_len);
+		tvlv_handler->flags |= BATADV_TVLV_HANDLER_OGM_CALLED;
+	} else {
+		if (!src)
+			return NET_RX_SUCCESS;
+
+		if (!dst)
+			return NET_RX_SUCCESS;
+
+		if (!tvlv_handler->unicast_handler)
+			return NET_RX_SUCCESS;
+
+		return tvlv_handler->unicast_handler(bat_priv, src,
+						     dst, tvlv_value,
+						     tvlv_value_len);
+	}
+
+	return NET_RX_SUCCESS;
+}
+
+/**
+ * batadv_tvlv_containers_process - parse the given tvlv buffer to call the
+ *  appropriate handlers
+ * @bat_priv: the bat priv with all the soft interface information
+ * @ogm_source: flag indicating wether the tvlv is an ogm or a unicast packet
+ * @orig_node: orig node emitting the ogm packet
+ * @src: source mac address of the unicast packet
+ * @dst: destination mac address of the unicast packet
+ * @tvlv_value: tvlv content
+ * @tvlv_value_len: tvlv content length
+ *
+ * Returns success when processing an OGM or the return value of all called
+ * handler callbacks.
+ */
+int batadv_tvlv_containers_process(struct batadv_priv *bat_priv,
+				   bool ogm_source,
+				   struct batadv_orig_node *orig_node,
+				   uint8_t *src, uint8_t *dst,
+				   void *tvlv_value, uint16_t tvlv_value_len)
+{
+	struct batadv_tvlv_handler *tvlv_handler;
+	struct batadv_tvlv_hdr *tvlv_hdr;
+	uint16_t tvlv_value_cont_len;
+	uint8_t cifnotfound = BATADV_TVLV_HANDLER_OGM_CIFNOTFND;
+	int ret = NET_RX_SUCCESS;
+
+	while (tvlv_value_len >= sizeof(*tvlv_hdr)) {
+		tvlv_hdr = tvlv_value;
+		tvlv_value_cont_len = ntohs(tvlv_hdr->len);
+		tvlv_value = tvlv_hdr + 1;
+		tvlv_value_len -= sizeof(*tvlv_hdr);
+
+		if (tvlv_value_cont_len > tvlv_value_len)
+			break;
+
+		tvlv_handler = batadv_tvlv_handler_get(bat_priv,
+						       tvlv_hdr->type,
+						       tvlv_hdr->version);
+
+		ret |= batadv_tvlv_call_handler(bat_priv, tvlv_handler,
+						ogm_source, orig_node,
+						src, dst, tvlv_value,
+						tvlv_value_cont_len);
+		if (tvlv_handler)
+			batadv_tvlv_handler_free_ref(tvlv_handler);
+		tvlv_value = (uint8_t *)tvlv_value + tvlv_value_cont_len;
+		tvlv_value_len -= tvlv_value_cont_len;
+	}
+
+	if (!ogm_source)
+		return ret;
+
+	rcu_read_lock();
+	hlist_for_each_entry_rcu(tvlv_handler,
+				 &bat_priv->tvlv.handler_list, list) {
+		if ((tvlv_handler->flags & BATADV_TVLV_HANDLER_OGM_CIFNOTFND) &&
+		    !(tvlv_handler->flags & BATADV_TVLV_HANDLER_OGM_CALLED))
+			tvlv_handler->ogm_handler(bat_priv, orig_node,
+						  cifnotfound, NULL, 0);
+
+		tvlv_handler->flags &= ~BATADV_TVLV_HANDLER_OGM_CALLED;
+	}
+	rcu_read_unlock();
+
+	return NET_RX_SUCCESS;
+}
+
+/**
+ * batadv_tvlv_ogm_receive - process an incoming ogm and call the appropriate
+ *  handlers
+ * @bat_priv: the bat priv with all the soft interface information
+ * @batadv_ogm_packet: ogm packet containing the tvlv containers
+ * @orig_node: orig node emitting the ogm packet
+ */
+void batadv_tvlv_ogm_receive(struct batadv_priv *bat_priv,
+			     struct batadv_ogm_packet *batadv_ogm_packet,
+			     struct batadv_orig_node *orig_node)
+{
+	void *tvlv_value;
+	uint16_t tvlv_value_len;
+
+	if (!batadv_ogm_packet)
+		return;
+
+	tvlv_value_len = ntohs(batadv_ogm_packet->tvlv_len);
+	if (!tvlv_value_len)
+		return;
+
+	tvlv_value = batadv_ogm_packet + 1;
+
+	batadv_tvlv_containers_process(bat_priv, true, orig_node, NULL, NULL,
+				       tvlv_value, tvlv_value_len);
+}
+
+/**
+ * batadv_tvlv_handler_register - register tvlv handler based on the provided
+ *  type and version (both need to match) for ogm tvlv payload and/or unicast
+ *  payload
+ * @bat_priv: the bat priv with all the soft interface information
+ * @optr: ogm tvlv handler callback function. This function receives the orig
+ *  node, flags and the tvlv content as argument to process.
+ * @uptr: unicast tvlv handler callback function. This function receives the
+ *  source & destination of the unicast packet as well as the tvlv content
+ *  to process.
+ * @type: tvlv handler type to be registered
+ * @version: tvlv handler version to be registered
+ * @flags: flags to enable or disable TVLV API behavior
+ */
+void batadv_tvlv_handler_register(struct batadv_priv *bat_priv,
+				  void (*optr)(struct batadv_priv *bat_priv,
+					       struct batadv_orig_node *orig,
+					       uint8_t flags,
+					       void *tvlv_value,
+					       uint16_t tvlv_value_len),
+				  int (*uptr)(struct batadv_priv *bat_priv,
+					      uint8_t *src, uint8_t *dst,
+					      void *tvlv_value,
+					      uint16_t tvlv_value_len),
+				  uint8_t type, uint8_t version, uint8_t flags)
+{
+	struct batadv_tvlv_handler *tvlv_handler;
+
+	tvlv_handler = batadv_tvlv_handler_get(bat_priv, type, version);
+	if (tvlv_handler) {
+		batadv_tvlv_handler_free_ref(tvlv_handler);
+		return;
+	}
+
+	tvlv_handler = kzalloc(sizeof(*tvlv_handler), GFP_ATOMIC);
+	if (!tvlv_handler)
+		return;
+
+	tvlv_handler->ogm_handler = optr;
+	tvlv_handler->unicast_handler = uptr;
+	tvlv_handler->type = type;
+	tvlv_handler->version = version;
+	tvlv_handler->flags = flags;
+	atomic_set(&tvlv_handler->refcount, 1);
+	INIT_HLIST_NODE(&tvlv_handler->list);
+
+	spin_lock_bh(&bat_priv->tvlv.handler_list_lock);
+	hlist_add_head_rcu(&tvlv_handler->list, &bat_priv->tvlv.handler_list);
+	spin_unlock_bh(&bat_priv->tvlv.handler_list_lock);
+}
+
+/**
+ * batadv_tvlv_handler_unregister - unregister tvlv handler based on the
+ *  provided type and version (both need to match)
+ * @bat_priv: the bat priv with all the soft interface information
+ * @type: tvlv handler type to be unregistered
+ * @version: tvlv handler version to be unregistered
+ */
+void batadv_tvlv_handler_unregister(struct batadv_priv *bat_priv,
+				    uint8_t type, uint8_t version)
+{
+	struct batadv_tvlv_handler *tvlv_handler;
+
+	tvlv_handler = batadv_tvlv_handler_get(bat_priv, type, version);
+	if (!tvlv_handler)
+		return;
+
+	batadv_tvlv_handler_free_ref(tvlv_handler);
+	spin_lock_bh(&bat_priv->tvlv.handler_list_lock);
+	hlist_del_rcu(&tvlv_handler->list);
+	spin_unlock_bh(&bat_priv->tvlv.handler_list_lock);
+	batadv_tvlv_handler_free_ref(tvlv_handler);
+}
+
+/**
+ * batadv_tvlv_unicast_send - send a unicast packet with tvlv payload to the
+ *  specified host
+ * @bat_priv: the bat priv with all the soft interface information
+ * @src: source mac address of the unicast packet
+ * @dst: destination mac address of the unicast packet
+ * @type: tvlv type
+ * @version: tvlv version
+ * @tvlv_value: tvlv content
+ * @tvlv_value_len: tvlv content length
+ */
+void batadv_tvlv_unicast_send(struct batadv_priv *bat_priv, uint8_t *src,
+			      uint8_t *dst, uint8_t type, uint8_t version,
+			      void *tvlv_value, uint16_t tvlv_value_len)
+{
+	struct batadv_unicast_tvlv_packet *unicast_tvlv_packet;
+	struct batadv_tvlv_hdr *tvlv_hdr;
+	struct batadv_orig_node *orig_node;
+	struct sk_buff *skb = NULL;
+	unsigned char *tvlv_buff;
+	unsigned int tvlv_len;
+	ssize_t hdr_len = sizeof(*unicast_tvlv_packet);
+	bool ret = false;
+
+	orig_node = batadv_orig_hash_find(bat_priv, dst);
+	if (!orig_node)
+		goto out;
+
+	tvlv_len = sizeof(*tvlv_hdr) + tvlv_value_len;
+
+	skb = netdev_alloc_skb_ip_align(NULL, ETH_HLEN + hdr_len + tvlv_len);
+	if (!skb)
+		goto out;
+
+	skb->priority = TC_PRIO_CONTROL;
+	skb_reserve(skb, ETH_HLEN);
+	tvlv_buff = skb_put(skb, sizeof(*unicast_tvlv_packet) + tvlv_len);
+	unicast_tvlv_packet = (struct batadv_unicast_tvlv_packet *)tvlv_buff;
+	unicast_tvlv_packet->header.packet_type = BATADV_UNICAST_TVLV;
+	unicast_tvlv_packet->header.version = BATADV_COMPAT_VERSION;
+	unicast_tvlv_packet->header.ttl = BATADV_TTL;
+	unicast_tvlv_packet->reserved = 0;
+	unicast_tvlv_packet->tvlv_len = htons(tvlv_len);
+	unicast_tvlv_packet->align = 0;
+	memcpy(unicast_tvlv_packet->src, src, ETH_ALEN);
+	memcpy(unicast_tvlv_packet->dst, dst, ETH_ALEN);
+
+	tvlv_buff = (unsigned char *)(unicast_tvlv_packet + 1);
+	tvlv_hdr = (struct batadv_tvlv_hdr *)tvlv_buff;
+	tvlv_hdr->version = version;
+	tvlv_hdr->type = type;
+	tvlv_hdr->len = htons(tvlv_value_len);
+	tvlv_buff += sizeof(*tvlv_hdr);
+	memcpy(tvlv_buff, tvlv_value, tvlv_value_len);
+
+	if (batadv_send_skb_to_orig(skb, orig_node, NULL) != NET_XMIT_DROP)
+		ret = true;
+
+out:
+	if (skb && !ret)
+		kfree_skb(skb);
+	if (orig_node)
+		batadv_orig_node_free_ref(orig_node);
+}
+
 static int batadv_param_set_ra(const char *val, const struct kernel_param *kp)
 {
 	struct batadv_algo_ops *bat_algo_ops;
diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index 24675523930f..397722fb509b 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -326,4 +326,39 @@ static inline uint64_t batadv_sum_counter(struct batadv_priv *bat_priv,
  */
 #define BATADV_SKB_CB(__skb)       ((struct batadv_skb_cb *)&((__skb)->cb[0]))
 
+void batadv_tvlv_container_register(struct batadv_priv *bat_priv,
+				    uint8_t type, uint8_t version,
+				    void *tvlv_value, uint16_t tvlv_value_len);
+uint16_t batadv_tvlv_container_ogm_append(struct batadv_priv *bat_priv,
+					  unsigned char **packet_buff,
+					  int *packet_buff_len,
+					  int packet_min_len);
+void batadv_tvlv_ogm_receive(struct batadv_priv *bat_priv,
+			     struct batadv_ogm_packet *batadv_ogm_packet,
+			     struct batadv_orig_node *orig_node);
+void batadv_tvlv_container_unregister(struct batadv_priv *bat_priv,
+				      uint8_t type, uint8_t version);
+
+void batadv_tvlv_handler_register(struct batadv_priv *bat_priv,
+				  void (*optr)(struct batadv_priv *bat_priv,
+					       struct batadv_orig_node *orig,
+					       uint8_t flags,
+					       void *tvlv_value,
+					       uint16_t tvlv_value_len),
+				  int (*uptr)(struct batadv_priv *bat_priv,
+					      uint8_t *src, uint8_t *dst,
+					      void *tvlv_value,
+					      uint16_t tvlv_value_len),
+				  uint8_t type, uint8_t version, uint8_t flags);
+void batadv_tvlv_handler_unregister(struct batadv_priv *bat_priv,
+				    uint8_t type, uint8_t version);
+int batadv_tvlv_containers_process(struct batadv_priv *bat_priv,
+				   bool ogm_source,
+				   struct batadv_orig_node *orig_node,
+				   uint8_t *src, uint8_t *dst,
+				   void *tvlv_buff, uint16_t tvlv_buff_len);
+void batadv_tvlv_unicast_send(struct batadv_priv *bat_priv, uint8_t *src,
+			      uint8_t *dst, uint8_t type, uint8_t version,
+			      void *tvlv_value, uint16_t tvlv_value_len);
+
 #endif /* _NET_BATMAN_ADV_MAIN_H_ */
diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index 11a22c8c3cbb..b5c21c418a5f 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -20,6 +20,10 @@
 #ifndef _NET_BATMAN_ADV_PACKET_H_
 #define _NET_BATMAN_ADV_PACKET_H_
 
+/**
+ * enum batadv_packettype - types for batman-adv encapsulated packets
+ * @BATADV_UNICAST_TVLV: unicast packet carrying TVLV containers
+ */
 enum batadv_packettype {
 	BATADV_IV_OGM		= 0x01,
 	BATADV_ICMP		= 0x02,
@@ -31,6 +35,7 @@ enum batadv_packettype {
 	BATADV_ROAM_ADV		= 0x08,
 	BATADV_UNICAST_4ADDR	= 0x09,
 	BATADV_CODED		= 0x0a,
+	BATADV_UNICAST_TVLV	= 0x0b,
 };
 
 /**
@@ -131,6 +136,11 @@ struct batadv_header {
 	 */
 };
 
+/**
+ * struct batadv_ogm_packet - ogm (routing protocol) packet
+ * @header: common batman packet header
+ * @tvlv_len: length of tvlv data following the ogm header
+ */
 struct batadv_ogm_packet {
 	struct batadv_header header;
 	uint8_t  flags;    /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */
@@ -142,6 +152,7 @@ struct batadv_ogm_packet {
 	uint8_t  tt_num_changes;
 	uint8_t  ttvn; /* translation table version number */
 	__be16   tt_crc;
+	__be16   tvlv_len;
 } __packed;
 
 #define BATADV_OGM_HLEN sizeof(struct batadv_ogm_packet)
@@ -311,4 +322,34 @@ struct batadv_coded_packet {
 	__be16   coded_len;
 };
 
+/**
+ * struct batadv_unicast_tvlv - generic unicast packet with tvlv payload
+ * @header: common batman packet header
+ * @reserved: reserved field (for packet alignment)
+ * @src: address of the source
+ * @dst: address of the destination
+ * @tvlv_len: length of tvlv data following the unicast tvlv header
+ * @align: 2 bytes to align the header to a 4 byte boundry
+ */
+struct batadv_unicast_tvlv_packet {
+	struct batadv_header header;
+	uint8_t  reserved;
+	uint8_t  dst[ETH_ALEN];
+	uint8_t  src[ETH_ALEN];
+	__be16   tvlv_len;
+	uint16_t align;
+};
+
+/**
+ * struct batadv_tvlv_hdr - base tvlv header struct
+ * @type: tvlv container type (see batadv_tvlv_type)
+ * @version: tvlv container version
+ * @len: tvlv container length
+ */
+struct batadv_tvlv_hdr {
+	uint8_t type;
+	uint8_t version;
+	__be16  len;
+};
+
 #endif /* _NET_BATMAN_ADV_PACKET_H_ */
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 0439395d7ba5..9640656d4e51 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -1139,6 +1139,54 @@ rx_success:
 	return batadv_route_unicast_packet(skb, recv_if);
 }
 
+/**
+ * batadv_recv_unicast_tvlv - receive and process unicast tvlv packets
+ * @skb: unicast tvlv packet to process
+ * @recv_if: pointer to interface this packet was received on
+ * @dst_addr: the payload destination
+ *
+ * Returns NET_RX_SUCCESS if the packet has been consumed or NET_RX_DROP
+ * otherwise.
+ */
+int batadv_recv_unicast_tvlv(struct sk_buff *skb,
+			     struct batadv_hard_iface *recv_if)
+{
+	struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
+	struct batadv_unicast_tvlv_packet *unicast_tvlv_packet;
+	unsigned char *tvlv_buff;
+	uint16_t tvlv_buff_len;
+	int hdr_size = sizeof(*unicast_tvlv_packet);
+	int ret = NET_RX_DROP;
+
+	if (batadv_check_unicast_packet(bat_priv, skb, hdr_size) < 0)
+		return NET_RX_DROP;
+
+	/* the header is likely to be modified while forwarding */
+	if (skb_cow(skb, hdr_size) < 0)
+		return NET_RX_DROP;
+
+	/* packet needs to be linearized to access the tvlv content */
+	if (skb_linearize(skb) < 0)
+		return NET_RX_DROP;
+
+	unicast_tvlv_packet = (struct batadv_unicast_tvlv_packet *)skb->data;
+
+	tvlv_buff = (unsigned char *)(skb->data + hdr_size);
+	tvlv_buff_len = ntohs(unicast_tvlv_packet->tvlv_len);
+
+	if (tvlv_buff_len > skb->len - hdr_size)
+		return NET_RX_DROP;
+
+	ret = batadv_tvlv_containers_process(bat_priv, false, NULL,
+					     unicast_tvlv_packet->src,
+					     unicast_tvlv_packet->dst,
+					     tvlv_buff, tvlv_buff_len);
+
+	if (ret != NET_RX_SUCCESS)
+		ret = batadv_route_unicast_packet(skb, recv_if);
+
+	return ret;
+}
 
 int batadv_recv_bcast_packet(struct sk_buff *skb,
 			     struct batadv_hard_iface *recv_if)
diff --git a/net/batman-adv/routing.h b/net/batman-adv/routing.h
index 72a29bde2010..0a7983b25395 100644
--- a/net/batman-adv/routing.h
+++ b/net/batman-adv/routing.h
@@ -40,6 +40,8 @@ int batadv_recv_tt_query(struct sk_buff *skb,
 			 struct batadv_hard_iface *recv_if);
 int batadv_recv_roam_adv(struct sk_buff *skb,
 			 struct batadv_hard_iface *recv_if);
+int batadv_recv_unicast_tvlv(struct sk_buff *skb,
+			     struct batadv_hard_iface *recv_if);
 struct batadv_neigh_node *
 batadv_find_router(struct batadv_priv *bat_priv,
 		   struct batadv_orig_node *orig_node,
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index b2c94e139319..4bdea16bc70c 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -429,6 +429,20 @@ struct batadv_priv_gw {
 	atomic_t reselect;
 };
 
+/**
+ * struct batadv_priv_tvlv - per mesh interface tvlv data
+ * @container_list: list of registered tvlv containers to be sent with each OGM
+ * @handler_list: list of the various tvlv content handlers
+ * @container_list_lock: protects tvlv container list access
+ * @handler_list_lock: protects handler list access
+ */
+struct batadv_priv_tvlv {
+	struct hlist_head container_list;
+	struct hlist_head handler_list;
+	spinlock_t container_list_lock; /* protects container_list */
+	spinlock_t handler_list_lock; /* protects handler_list */
+};
+
 /**
  * struct batadv_priv_vis - per mesh interface vis data
  * @send_list: list of batadv_vis_info packets to sent
@@ -531,6 +545,7 @@ struct batadv_priv_nc {
  * @debug_log: holding debug logging relevant data
  * @gw: gateway data
  * @tt: translation table data
+ * @tvlv: type-version-length-value data
  * @vis: vis data
  * @dat: distributed arp table data
  * @network_coding: bool indicating whether network coding is enabled
@@ -583,6 +598,7 @@ struct batadv_priv {
 #endif
 	struct batadv_priv_gw gw;
 	struct batadv_priv_tt tt;
+	struct batadv_priv_tvlv tvlv;
 	struct batadv_priv_vis vis;
 #ifdef CONFIG_BATMAN_ADV_DAT
 	struct batadv_priv_dat dat;
@@ -992,4 +1008,60 @@ struct batadv_dat_candidate {
 	struct batadv_orig_node *orig_node;
 };
 
+/**
+ * struct batadv_tvlv_container - container for tvlv appended to OGMs
+ * @list: hlist node for batadv_priv_tvlv::container_list
+ * @tvlv_hdr: tvlv header information needed to construct the tvlv
+ * @value_len: length of the buffer following this struct which contains
+ *  the actual tvlv payload
+ * @refcount: number of contexts the object is used
+ */
+struct batadv_tvlv_container {
+	struct hlist_node list;
+	struct batadv_tvlv_hdr tvlv_hdr;
+	atomic_t refcount;
+};
+
+/**
+ * struct batadv_tvlv_handler - handler for specific tvlv type and version
+ * @list: hlist node for batadv_priv_tvlv::handler_list
+ * @ogm_handler: handler callback which is given the tvlv payload to process on
+ *  incoming OGM packets
+ * @unicast_handler: handler callback which is given the tvlv payload to process
+ *  on incoming unicast tvlv packets
+ * @type: tvlv type this handler feels responsible for
+ * @version: tvlv version this handler feels responsible for
+ * @flags: tvlv handler flags
+ * @refcount: number of contexts the object is used
+ * @rcu: struct used for freeing in an RCU-safe manner
+ */
+struct batadv_tvlv_handler {
+	struct hlist_node list;
+	void (*ogm_handler)(struct batadv_priv *bat_priv,
+			    struct batadv_orig_node *orig,
+			    uint8_t flags,
+			    void *tvlv_value, uint16_t tvlv_value_len);
+	int (*unicast_handler)(struct batadv_priv *bat_priv,
+			       uint8_t *src, uint8_t *dst,
+			       void *tvlv_value, uint16_t tvlv_value_len);
+	uint8_t type;
+	uint8_t version;
+	uint8_t flags;
+	atomic_t refcount;
+	struct rcu_head rcu;
+};
+
+/**
+ * enum batadv_tvlv_handler_flags - tvlv handler flags definitions
+ * @BATADV_TVLV_HANDLER_OGM_CIFNOTFND: tvlv ogm processing function will call
+ *  this handler even if its type was not found (with no data)
+ * @BATADV_TVLV_HANDLER_OGM_CALLED: interval tvlv handling flag - the API marks
+ *  a handler as being called, so it won't be called if the
+ *  BATADV_TVLV_HANDLER_OGM_CIFNOTFND flag was set
+ */
+enum batadv_tvlv_handler_flags {
+	BATADV_TVLV_HANDLER_OGM_CIFNOTFND = BIT(1),
+	BATADV_TVLV_HANDLER_OGM_CALLED = BIT(2),
+};
+
 #endif /* _NET_BATMAN_ADV_TYPES_H_ */
-- 
cgit 


From 414254e342a0d58144de40c3da777521ebaeeb07 Mon Sep 17 00:00:00 2001
From: Marek Lindner <lindner_marek@yahoo.de>
Date: Tue, 23 Apr 2013 21:39:58 +0800
Subject: batman-adv: tvlv - gateway download/upload bandwidth container

Prior to this patch batman-adv read the advertised uplink bandwidth
from userspace and compressed this information into a single byte
called "gateway class".
Now the download & upload bandwidth information is sent as-is. No
userspace change is necessary since the sysfs API always allowed
to specify a bandwidth.

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Spyros Gasteratos <morfeas3000@gmail.com>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/bat_iv_ogm.c     |  23 +---
 net/batman-adv/gateway_client.c | 187 ++++++++++++++++++++------------
 net/batman-adv/gateway_client.h |   2 +-
 net/batman-adv/gateway_common.c | 230 +++++++++++++++++++++++++---------------
 net/batman-adv/gateway_common.h |  14 ++-
 net/batman-adv/main.c           |   5 +
 net/batman-adv/originator.c     |   4 +-
 net/batman-adv/packet.h         |  21 +++-
 net/batman-adv/soft-interface.c |   3 +-
 net/batman-adv/sysfs.c          |  17 ++-
 net/batman-adv/types.h          |  12 ++-
 11 files changed, 327 insertions(+), 191 deletions(-)

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index f7dd7e51fff4..f0f02d1a10d7 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -135,6 +135,7 @@ static int batadv_iv_ogm_iface_enable(struct batadv_hard_iface *hard_iface)
 	batadv_ogm_packet->header.version = BATADV_COMPAT_VERSION;
 	batadv_ogm_packet->header.ttl = 2;
 	batadv_ogm_packet->flags = BATADV_NO_FLAGS;
+	batadv_ogm_packet->reserved = 0;
 	batadv_ogm_packet->tq = BATADV_TQ_MAX_VALUE;
 	batadv_ogm_packet->tt_num_changes = 0;
 	batadv_ogm_packet->ttvn = 0;
@@ -690,7 +691,6 @@ static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
 	int *ogm_buff_len = &hard_iface->bat_iv.ogm_buff_len;
 	int vis_server, tt_num_changes = 0;
 	uint32_t seqno;
-	uint8_t bandwidth;
 	uint16_t tvlv_len = 0;
 
 	vis_server = atomic_read(&bat_priv->vis_mode);
@@ -719,14 +719,6 @@ static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
 	else
 		batadv_ogm_packet->flags &= ~BATADV_VIS_SERVER;
 
-	if (hard_iface == primary_if &&
-	    atomic_read(&bat_priv->gw_mode) == BATADV_GW_MODE_SERVER) {
-		bandwidth = (uint8_t)atomic_read(&bat_priv->gw_bandwidth);
-		batadv_ogm_packet->gw_flags = bandwidth;
-	} else {
-		batadv_ogm_packet->gw_flags = BATADV_NO_FLAGS;
-	}
-
 	batadv_iv_ogm_slide_own_bcast_window(hard_iface);
 	batadv_iv_ogm_queue_add(bat_priv, hard_iface->bat_iv.ogm_buff,
 				hard_iface->bat_iv.ogm_buff_len, hard_iface, 1,
@@ -861,19 +853,6 @@ update_tt:
 				      batadv_ogm_packet->tt_num_changes,
 				      batadv_ogm_packet->ttvn,
 				      ntohs(batadv_ogm_packet->tt_crc));
-
-	if (orig_node->gw_flags != batadv_ogm_packet->gw_flags)
-		batadv_gw_node_update(bat_priv, orig_node,
-				      batadv_ogm_packet->gw_flags);
-
-	orig_node->gw_flags = batadv_ogm_packet->gw_flags;
-
-	/* restart gateway selection if fast or late switching was enabled */
-	if ((orig_node->gw_flags) &&
-	    (atomic_read(&bat_priv->gw_mode) == BATADV_GW_MODE_CLIENT) &&
-	    (atomic_read(&bat_priv->gw_sel_class) > 2))
-		batadv_gw_check_election(bat_priv, orig_node);
-
 	goto out;
 
 unlock:
diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index 1ce4b8763ef2..1bce63aa5f5f 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -118,7 +118,6 @@ batadv_gw_get_best_gw_node(struct batadv_priv *bat_priv)
 	uint32_t max_gw_factor = 0, tmp_gw_factor = 0;
 	uint32_t gw_divisor;
 	uint8_t max_tq = 0;
-	int down, up;
 	uint8_t tq_avg;
 	struct batadv_orig_node *orig_node;
 
@@ -142,10 +141,9 @@ batadv_gw_get_best_gw_node(struct batadv_priv *bat_priv)
 
 		switch (atomic_read(&bat_priv->gw_sel_class)) {
 		case 1: /* fast connection */
-			batadv_gw_bandwidth_to_kbit(orig_node->gw_flags,
-						    &down, &up);
-
-			tmp_gw_factor = tq_avg * tq_avg * down * 100 * 100;
+			tmp_gw_factor = tq_avg * tq_avg;
+			tmp_gw_factor *= gw_node->bandwidth_down;
+			tmp_gw_factor *= 100 * 100;
 			tmp_gw_factor /= gw_divisor;
 
 			if ((tmp_gw_factor > max_gw_factor) ||
@@ -258,16 +256,22 @@ void batadv_gw_election(struct batadv_priv *bat_priv)
 				    NULL);
 	} else if ((!curr_gw) && (next_gw)) {
 		batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
-			   "Adding route to gateway %pM (gw_flags: %i, tq: %i)\n",
+			   "Adding route to gateway %pM (bandwidth: %u.%u/%u.%u MBit, tq: %i)\n",
 			   next_gw->orig_node->orig,
-			   next_gw->orig_node->gw_flags, router->tq_avg);
+			   next_gw->bandwidth_down / 10,
+			   next_gw->bandwidth_down % 10,
+			   next_gw->bandwidth_up / 10,
+			   next_gw->bandwidth_up % 10, router->tq_avg);
 		batadv_throw_uevent(bat_priv, BATADV_UEV_GW, BATADV_UEV_ADD,
 				    gw_addr);
 	} else {
 		batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
-			   "Changing route to gateway %pM (gw_flags: %i, tq: %i)\n",
+			   "Changing route to gateway %pM (bandwidth: %u.%u/%u.%u MBit, tq: %i)\n",
 			   next_gw->orig_node->orig,
-			   next_gw->orig_node->gw_flags, router->tq_avg);
+			   next_gw->bandwidth_down / 10,
+			   next_gw->bandwidth_down % 10,
+			   next_gw->bandwidth_up / 10,
+			   next_gw->bandwidth_up % 10, router->tq_avg);
 		batadv_throw_uevent(bat_priv, BATADV_UEV_GW, BATADV_UEV_CHANGE,
 				    gw_addr);
 	}
@@ -337,12 +341,20 @@ out:
 	return;
 }
 
+/**
+ * batadv_gw_node_add - add gateway node to list of available gateways
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig_node: originator announcing gateway capabilities
+ * @gateway: announced bandwidth information
+ */
 static void batadv_gw_node_add(struct batadv_priv *bat_priv,
 			       struct batadv_orig_node *orig_node,
-			       uint8_t new_gwflags)
+			       struct batadv_tvlv_gateway_data *gateway)
 {
 	struct batadv_gw_node *gw_node;
-	int down, up;
+
+	if (gateway->bandwidth_down == 0)
+		return;
 
 	gw_node = kzalloc(sizeof(*gw_node), GFP_ATOMIC);
 	if (!gw_node)
@@ -356,73 +368,116 @@ static void batadv_gw_node_add(struct batadv_priv *bat_priv,
 	hlist_add_head_rcu(&gw_node->list, &bat_priv->gw.list);
 	spin_unlock_bh(&bat_priv->gw.list_lock);
 
-	batadv_gw_bandwidth_to_kbit(new_gwflags, &down, &up);
 	batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
-		   "Found new gateway %pM -> gw_class: %i - %i%s/%i%s\n",
-		   orig_node->orig, new_gwflags,
-		   (down > 2048 ? down / 1024 : down),
-		   (down > 2048 ? "MBit" : "KBit"),
-		   (up > 2048 ? up / 1024 : up),
-		   (up > 2048 ? "MBit" : "KBit"));
+		   "Found new gateway %pM -> gw bandwidth: %u.%u/%u.%u MBit\n",
+		   orig_node->orig,
+		   ntohl(gateway->bandwidth_down) / 10,
+		   ntohl(gateway->bandwidth_down) % 10,
+		   ntohl(gateway->bandwidth_up) / 10,
+		   ntohl(gateway->bandwidth_up) % 10);
 }
 
-void batadv_gw_node_update(struct batadv_priv *bat_priv,
-			   struct batadv_orig_node *orig_node,
-			   uint8_t new_gwflags)
+/**
+ * batadv_gw_node_get - retrieve gateway node from list of available gateways
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig_node: originator announcing gateway capabilities
+ *
+ * Returns gateway node if found or NULL otherwise.
+ */
+static struct batadv_gw_node *
+batadv_gw_node_get(struct batadv_priv *bat_priv,
+		   struct batadv_orig_node *orig_node)
 {
-	struct batadv_gw_node *gw_node, *curr_gw;
-
-	/* Note: We don't need a NULL check here, since curr_gw never gets
-	 * dereferenced. If curr_gw is NULL we also should not exit as we may
-	 * have this gateway in our list (duplication check!) even though we
-	 * have no currently selected gateway.
-	 */
-	curr_gw = batadv_gw_get_selected_gw_node(bat_priv);
+	struct batadv_gw_node *gw_node_tmp, *gw_node = NULL;
 
 	rcu_read_lock();
-	hlist_for_each_entry_rcu(gw_node, &bat_priv->gw.list, list) {
-		if (gw_node->orig_node != orig_node)
+	hlist_for_each_entry_rcu(gw_node_tmp, &bat_priv->gw.list, list) {
+		if (gw_node_tmp->orig_node != orig_node)
 			continue;
 
-		batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
-			   "Gateway class of originator %pM changed from %i to %i\n",
-			   orig_node->orig, gw_node->orig_node->gw_flags,
-			   new_gwflags);
+		if (gw_node_tmp->deleted)
+			continue;
 
-		gw_node->deleted = 0;
+		if (!atomic_inc_not_zero(&gw_node_tmp->refcount))
+			continue;
 
-		if (new_gwflags == BATADV_NO_FLAGS) {
-			gw_node->deleted = jiffies;
-			batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
-				   "Gateway %pM removed from gateway list\n",
-				   orig_node->orig);
+		gw_node = gw_node_tmp;
+		break;
+	}
+	rcu_read_unlock();
 
-			if (gw_node == curr_gw)
-				goto deselect;
-		}
+	return gw_node;
+}
 
-		goto unlock;
+/**
+ * batadv_gw_node_update - update list of available gateways with changed
+ *  bandwidth information
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig_node: originator announcing gateway capabilities
+ * @gateway: announced bandwidth information
+ */
+void batadv_gw_node_update(struct batadv_priv *bat_priv,
+			   struct batadv_orig_node *orig_node,
+			   struct batadv_tvlv_gateway_data *gateway)
+{
+	struct batadv_gw_node *gw_node, *curr_gw = NULL;
+
+	gw_node = batadv_gw_node_get(bat_priv, orig_node);
+	if (!gw_node) {
+		batadv_gw_node_add(bat_priv, orig_node, gateway);
+		goto out;
 	}
 
-	if (new_gwflags == BATADV_NO_FLAGS)
-		goto unlock;
+	if ((gw_node->bandwidth_down == ntohl(gateway->bandwidth_down)) &&
+	    (gw_node->bandwidth_up == ntohl(gateway->bandwidth_up)))
+		goto out;
 
-	batadv_gw_node_add(bat_priv, orig_node, new_gwflags);
-	goto unlock;
+	batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+		   "Gateway bandwidth of originator %pM changed from %u.%u/%u.%u MBit to %u.%u/%u.%u MBit\n",
+		   orig_node->orig,
+		   gw_node->bandwidth_down / 10,
+		   gw_node->bandwidth_down % 10,
+		   gw_node->bandwidth_up / 10,
+		   gw_node->bandwidth_up % 10,
+		   ntohl(gateway->bandwidth_down) / 10,
+		   ntohl(gateway->bandwidth_down) % 10,
+		   ntohl(gateway->bandwidth_up) / 10,
+		   ntohl(gateway->bandwidth_up) % 10);
+
+	gw_node->bandwidth_down = ntohl(gateway->bandwidth_down);
+	gw_node->bandwidth_up = ntohl(gateway->bandwidth_up);
+
+	gw_node->deleted = 0;
+	if (ntohl(gateway->bandwidth_down) == 0) {
+		gw_node->deleted = jiffies;
+		batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+			   "Gateway %pM removed from gateway list\n",
+			   orig_node->orig);
 
-deselect:
-	batadv_gw_deselect(bat_priv);
-unlock:
-	rcu_read_unlock();
+		/* Note: We don't need a NULL check here, since curr_gw never
+		 * gets dereferenced.
+		 */
+		curr_gw = batadv_gw_get_selected_gw_node(bat_priv);
+		if (gw_node == curr_gw)
+			batadv_gw_deselect(bat_priv);
+	}
 
+out:
 	if (curr_gw)
 		batadv_gw_node_free_ref(curr_gw);
+	if (gw_node)
+		batadv_gw_node_free_ref(gw_node);
 }
 
 void batadv_gw_node_delete(struct batadv_priv *bat_priv,
 			   struct batadv_orig_node *orig_node)
 {
-	batadv_gw_node_update(bat_priv, orig_node, 0);
+	struct batadv_tvlv_gateway_data gateway;
+
+	gateway.bandwidth_down = 0;
+	gateway.bandwidth_up = 0;
+
+	batadv_gw_node_update(bat_priv, orig_node, &gateway);
 }
 
 void batadv_gw_node_purge(struct batadv_priv *bat_priv)
@@ -467,9 +522,7 @@ static int batadv_write_buffer_text(struct batadv_priv *bat_priv,
 {
 	struct batadv_gw_node *curr_gw;
 	struct batadv_neigh_node *router;
-	int down, up, ret = -1;
-
-	batadv_gw_bandwidth_to_kbit(gw_node->orig_node->gw_flags, &down, &up);
+	int ret = -1;
 
 	router = batadv_orig_node_get_router(gw_node->orig_node);
 	if (!router)
@@ -477,16 +530,15 @@ static int batadv_write_buffer_text(struct batadv_priv *bat_priv,
 
 	curr_gw = batadv_gw_get_selected_gw_node(bat_priv);
 
-	ret = seq_printf(seq, "%s %pM (%3i) %pM [%10s]: %3i - %i%s/%i%s\n",
+	ret = seq_printf(seq, "%s %pM (%3i) %pM [%10s]: %u.%u/%u.%u MBit\n",
 			 (curr_gw == gw_node ? "=>" : "  "),
 			 gw_node->orig_node->orig,
 			 router->tq_avg, router->addr,
 			 router->if_incoming->net_dev->name,
-			 gw_node->orig_node->gw_flags,
-			 (down > 2048 ? down / 1024 : down),
-			 (down > 2048 ? "MBit" : "KBit"),
-			 (up > 2048 ? up / 1024 : up),
-			 (up > 2048 ? "MBit" : "KBit"));
+			 gw_node->bandwidth_down / 10,
+			 gw_node->bandwidth_down % 10,
+			 gw_node->bandwidth_up / 10,
+			 gw_node->bandwidth_up % 10);
 
 	batadv_neigh_node_free_ref(router);
 	if (curr_gw)
@@ -508,7 +560,7 @@ int batadv_gw_client_seq_print_text(struct seq_file *seq, void *offset)
 		goto out;
 
 	seq_printf(seq,
-		   "      %-12s (%s/%i) %17s [%10s]: gw_class ... [B.A.T.M.A.N. adv %s, MainIF/MAC: %s/%pM (%s)]\n",
+		   "      %-12s (%s/%i) %17s [%10s]: advertised uplink bandwidth ... [B.A.T.M.A.N. adv %s, MainIF/MAC: %s/%pM (%s)]\n",
 		   "Gateway", "#", BATADV_TQ_MAX_VALUE, "Nexthop", "outgoingIF",
 		   BATADV_SOURCE_VERSION, primary_if->net_dev->name,
 		   primary_if->net_dev->dev_addr, net_dev->name);
@@ -675,7 +727,7 @@ bool batadv_gw_out_of_range(struct batadv_priv *bat_priv,
 {
 	struct batadv_neigh_node *neigh_curr = NULL, *neigh_old = NULL;
 	struct batadv_orig_node *orig_dst_node = NULL;
-	struct batadv_gw_node *curr_gw = NULL;
+	struct batadv_gw_node *gw_node = NULL, *curr_gw = NULL;
 	struct ethhdr *ethhdr;
 	bool ret, out_of_range = false;
 	unsigned int header_len = 0;
@@ -691,7 +743,8 @@ bool batadv_gw_out_of_range(struct batadv_priv *bat_priv,
 	if (!orig_dst_node)
 		goto out;
 
-	if (!orig_dst_node->gw_flags)
+	gw_node = batadv_gw_node_get(bat_priv, orig_dst_node);
+	if (!gw_node->bandwidth_down == 0)
 		goto out;
 
 	ret = batadv_is_type_dhcprequest(skb, header_len);
@@ -742,6 +795,8 @@ out:
 		batadv_orig_node_free_ref(orig_dst_node);
 	if (curr_gw)
 		batadv_gw_node_free_ref(curr_gw);
+	if (gw_node)
+		batadv_gw_node_free_ref(gw_node);
 	if (neigh_old)
 		batadv_neigh_node_free_ref(neigh_old);
 	if (neigh_curr)
diff --git a/net/batman-adv/gateway_client.h b/net/batman-adv/gateway_client.h
index ceef4ebe8bcd..d95c2d23195e 100644
--- a/net/batman-adv/gateway_client.h
+++ b/net/batman-adv/gateway_client.h
@@ -29,7 +29,7 @@ void batadv_gw_check_election(struct batadv_priv *bat_priv,
 			      struct batadv_orig_node *orig_node);
 void batadv_gw_node_update(struct batadv_priv *bat_priv,
 			   struct batadv_orig_node *orig_node,
-			   uint8_t new_gwflags);
+			   struct batadv_tvlv_gateway_data *gateway);
 void batadv_gw_node_delete(struct batadv_priv *bat_priv,
 			   struct batadv_orig_node *orig_node);
 void batadv_gw_node_purge(struct batadv_priv *bat_priv);
diff --git a/net/batman-adv/gateway_common.c b/net/batman-adv/gateway_common.c
index 84bb2b18d711..b211b0f9cb78 100644
--- a/net/batman-adv/gateway_common.c
+++ b/net/batman-adv/gateway_common.c
@@ -21,64 +21,23 @@
 #include "gateway_common.h"
 #include "gateway_client.h"
 
-/* calculates the gateway class from kbit */
-static void batadv_kbit_to_gw_bandwidth(int down, int up, long *gw_srv_class)
-{
-	int mdown = 0, tdown, tup, difference;
-	uint8_t sbit, part;
-
-	*gw_srv_class = 0;
-	difference = 0x0FFFFFFF;
-
-	/* test all downspeeds */
-	for (sbit = 0; sbit < 2; sbit++) {
-		for (part = 0; part < 16; part++) {
-			tdown = 32 * (sbit + 2) * (1 << part);
-
-			if (abs(tdown - down) < difference) {
-				*gw_srv_class = (sbit << 7) + (part << 3);
-				difference = abs(tdown - down);
-				mdown = tdown;
-			}
-		}
-	}
-
-	/* test all upspeeds */
-	difference = 0x0FFFFFFF;
-
-	for (part = 0; part < 8; part++) {
-		tup = ((part + 1) * (mdown)) / 8;
-
-		if (abs(tup - up) < difference) {
-			*gw_srv_class = (*gw_srv_class & 0xF8) | part;
-			difference = abs(tup - up);
-		}
-	}
-}
-
-/* returns the up and downspeeds in kbit, calculated from the class */
-void batadv_gw_bandwidth_to_kbit(uint8_t gw_srv_class, int *down, int *up)
-{
-	int sbit = (gw_srv_class & 0x80) >> 7;
-	int dpart = (gw_srv_class & 0x78) >> 3;
-	int upart = (gw_srv_class & 0x07);
-
-	if (!gw_srv_class) {
-		*down = 0;
-		*up = 0;
-		return;
-	}
-
-	*down = 32 * (sbit + 2) * (1 << dpart);
-	*up = ((upart + 1) * (*down)) / 8;
-}
-
+/**
+ * batadv_parse_gw_bandwidth - parse supplied string buffer to extract download
+ *  and upload bandwidth information
+ * @net_dev: the soft interface net device
+ * @buff: string buffer to parse
+ * @down: pointer holding the returned download bandwidth information
+ * @up: pointer holding the returned upload bandwidth information
+ *
+ * Returns false on parse error and true otherwise.
+ */
 static bool batadv_parse_gw_bandwidth(struct net_device *net_dev, char *buff,
-				      int *up, int *down)
+				      uint32_t *down, uint32_t *up)
 {
-	int ret, multi = 1;
+	enum batadv_bandwidth_units bw_unit_type = BATADV_BW_UNIT_KBIT;
 	char *slash_ptr, *tmp_ptr;
 	long ldown, lup;
+	int ret;
 
 	slash_ptr = strchr(buff, '/');
 	if (slash_ptr)
@@ -88,10 +47,10 @@ static bool batadv_parse_gw_bandwidth(struct net_device *net_dev, char *buff,
 		tmp_ptr = buff + strlen(buff) - 4;
 
 		if (strnicmp(tmp_ptr, "mbit", 4) == 0)
-			multi = 1024;
+			bw_unit_type = BATADV_BW_UNIT_MBIT;
 
 		if ((strnicmp(tmp_ptr, "kbit", 4) == 0) ||
-		    (multi > 1))
+		    (bw_unit_type == BATADV_BW_UNIT_MBIT))
 			*tmp_ptr = '\0';
 	}
 
@@ -103,20 +62,28 @@ static bool batadv_parse_gw_bandwidth(struct net_device *net_dev, char *buff,
 		return false;
 	}
 
-	*down = ldown * multi;
+	switch (bw_unit_type) {
+	case BATADV_BW_UNIT_MBIT:
+		*down = ldown * 10;
+		break;
+	case BATADV_BW_UNIT_KBIT:
+	default:
+		*down = ldown / 100;
+		break;
+	}
 
 	/* we also got some upload info */
 	if (slash_ptr) {
-		multi = 1;
+		bw_unit_type = BATADV_BW_UNIT_KBIT;
 
 		if (strlen(slash_ptr + 1) > 4) {
 			tmp_ptr = slash_ptr + 1 - 4 + strlen(slash_ptr + 1);
 
 			if (strnicmp(tmp_ptr, "mbit", 4) == 0)
-				multi = 1024;
+				bw_unit_type = BATADV_BW_UNIT_MBIT;
 
 			if ((strnicmp(tmp_ptr, "kbit", 4) == 0) ||
-			    (multi > 1))
+			    (bw_unit_type == BATADV_BW_UNIT_MBIT))
 				*tmp_ptr = '\0';
 		}
 
@@ -128,52 +95,149 @@ static bool batadv_parse_gw_bandwidth(struct net_device *net_dev, char *buff,
 			return false;
 		}
 
-		*up = lup * multi;
+		switch (bw_unit_type) {
+		case BATADV_BW_UNIT_MBIT:
+			*up = lup * 10;
+			break;
+		case BATADV_BW_UNIT_KBIT:
+		default:
+			*up = lup / 100;
+			break;
+		}
 	}
 
 	return true;
 }
 
+/**
+ * batadv_gw_tvlv_container_update - update the gw tvlv container after gateway
+ *  setting change
+ * @bat_priv: the bat priv with all the soft interface information
+ */
+void batadv_gw_tvlv_container_update(struct batadv_priv *bat_priv)
+{
+	struct batadv_tvlv_gateway_data gw;
+	uint32_t down, up;
+	char gw_mode;
+
+	gw_mode = atomic_read(&bat_priv->gw_mode);
+
+	switch (gw_mode) {
+	case BATADV_GW_MODE_OFF:
+	case BATADV_GW_MODE_CLIENT:
+		batadv_tvlv_container_unregister(bat_priv, BATADV_TVLV_GW, 1);
+		break;
+	case BATADV_GW_MODE_SERVER:
+		down = atomic_read(&bat_priv->gw.bandwidth_down);
+		up = atomic_read(&bat_priv->gw.bandwidth_up);
+		gw.bandwidth_down = htonl(down);
+		gw.bandwidth_up = htonl(up);
+		batadv_tvlv_container_register(bat_priv, BATADV_TVLV_GW, 1,
+					       &gw, sizeof(gw));
+		break;
+	}
+}
+
 ssize_t batadv_gw_bandwidth_set(struct net_device *net_dev, char *buff,
 				size_t count)
 {
 	struct batadv_priv *bat_priv = netdev_priv(net_dev);
-	long gw_bandwidth_tmp = 0;
-	int up = 0, down = 0;
+	uint32_t down_curr, up_curr, down_new = 0, up_new = 0;
 	bool ret;
 
-	ret = batadv_parse_gw_bandwidth(net_dev, buff, &up, &down);
+	down_curr = (unsigned int)atomic_read(&bat_priv->gw.bandwidth_down);
+	up_curr = (unsigned int)atomic_read(&bat_priv->gw.bandwidth_up);
+
+	ret = batadv_parse_gw_bandwidth(net_dev, buff, &down_new, &up_new);
 	if (!ret)
 		goto end;
 
-	if ((!down) || (down < 256))
-		down = 2000;
-
-	if (!up)
-		up = down / 5;
+	if (!down_new)
+		down_new = 1;
 
-	batadv_kbit_to_gw_bandwidth(down, up, &gw_bandwidth_tmp);
+	if (!up_new)
+		up_new = down_new / 5;
 
-	/* the gw bandwidth we guessed above might not match the given
-	 * speeds, hence we need to calculate it back to show the number
-	 * that is going to be propagated
-	 */
-	batadv_gw_bandwidth_to_kbit((uint8_t)gw_bandwidth_tmp, &down, &up);
+	if (!up_new)
+		up_new = 1;
 
-	if (atomic_read(&bat_priv->gw_bandwidth) == gw_bandwidth_tmp)
+	if ((down_curr == down_new) && (up_curr == up_new))
 		return count;
 
 	batadv_gw_deselect(bat_priv);
 	batadv_info(net_dev,
-		    "Changing gateway bandwidth from: '%i' to: '%ld' (propagating: %d%s/%d%s)\n",
-		    atomic_read(&bat_priv->gw_bandwidth), gw_bandwidth_tmp,
-		    (down > 2048 ? down / 1024 : down),
-		    (down > 2048 ? "MBit" : "KBit"),
-		    (up > 2048 ? up / 1024 : up),
-		    (up > 2048 ? "MBit" : "KBit"));
+		    "Changing gateway bandwidth from: '%u.%u/%u.%u MBit' to: '%u.%u/%u.%u MBit'\n",
+		    down_curr / 10, down_curr % 10, up_curr / 10, up_curr % 10,
+		    down_new / 10, down_new % 10, up_new / 10, up_new % 10);
 
-	atomic_set(&bat_priv->gw_bandwidth, gw_bandwidth_tmp);
+	atomic_set(&bat_priv->gw.bandwidth_down, down_new);
+	atomic_set(&bat_priv->gw.bandwidth_up, up_new);
+	batadv_gw_tvlv_container_update(bat_priv);
 
 end:
 	return count;
 }
+
+/**
+ * batadv_gw_tvlv_ogm_handler_v1 - process incoming gateway tvlv container
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig: the orig_node of the ogm
+ * @flags: flags indicating the tvlv state (see batadv_tvlv_handler_flags)
+ * @tvlv_value: tvlv buffer containing the gateway data
+ * @tvlv_value_len: tvlv buffer length
+ */
+static void batadv_gw_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv,
+					  struct batadv_orig_node *orig,
+					  uint8_t flags,
+					  void *tvlv_value,
+					  uint16_t tvlv_value_len)
+{
+	struct batadv_tvlv_gateway_data gateway, *gateway_ptr;
+
+	/* only fetch the tvlv value if the handler wasn't called via the
+	 * CIFNOTFND flag and if there is data to fetch
+	 */
+	if ((flags & BATADV_TVLV_HANDLER_OGM_CIFNOTFND) ||
+	    (tvlv_value_len < sizeof(gateway))) {
+		gateway.bandwidth_down = 0;
+		gateway.bandwidth_up = 0;
+	} else {
+		gateway_ptr = tvlv_value;
+		gateway.bandwidth_down = gateway_ptr->bandwidth_down;
+		gateway.bandwidth_up = gateway_ptr->bandwidth_up;
+		if ((gateway.bandwidth_down == 0) ||
+		    (gateway.bandwidth_up == 0)) {
+			gateway.bandwidth_down = 0;
+			gateway.bandwidth_up = 0;
+		}
+	}
+
+	batadv_gw_node_update(bat_priv, orig, &gateway);
+
+	/* restart gateway selection if fast or late switching was enabled */
+	if ((gateway.bandwidth_down != 0) &&
+	    (atomic_read(&bat_priv->gw_mode) == BATADV_GW_MODE_CLIENT) &&
+	    (atomic_read(&bat_priv->gw_sel_class) > 2))
+		batadv_gw_check_election(bat_priv, orig);
+}
+
+/**
+ * batadv_gw_init - initialise the gateway handling internals
+ * @bat_priv: the bat priv with all the soft interface information
+ */
+void batadv_gw_init(struct batadv_priv *bat_priv)
+{
+	batadv_tvlv_handler_register(bat_priv, batadv_gw_tvlv_ogm_handler_v1,
+				     NULL, BATADV_TVLV_GW, 1,
+				     BATADV_TVLV_HANDLER_OGM_CIFNOTFND);
+}
+
+/**
+ * batadv_gw_free - free the gateway handling internals
+ * @bat_priv: the bat priv with all the soft interface information
+ */
+void batadv_gw_free(struct batadv_priv *bat_priv)
+{
+	batadv_tvlv_container_unregister(bat_priv, BATADV_TVLV_GW, 1);
+	batadv_tvlv_handler_unregister(bat_priv, BATADV_TVLV_GW, 1);
+}
diff --git a/net/batman-adv/gateway_common.h b/net/batman-adv/gateway_common.h
index 509b2bf8c2f4..56384a4cd18c 100644
--- a/net/batman-adv/gateway_common.h
+++ b/net/batman-adv/gateway_common.h
@@ -26,12 +26,24 @@ enum batadv_gw_modes {
 	BATADV_GW_MODE_SERVER,
 };
 
+/**
+ * enum batadv_bandwidth_units - bandwidth unit types
+ * @BATADV_BW_UNIT_KBIT: unit type kbit
+ * @BATADV_BW_UNIT_MBIT: unit type mbit
+ */
+enum batadv_bandwidth_units {
+	BATADV_BW_UNIT_KBIT,
+	BATADV_BW_UNIT_MBIT,
+};
+
 #define BATADV_GW_MODE_OFF_NAME	"off"
 #define BATADV_GW_MODE_CLIENT_NAME	"client"
 #define BATADV_GW_MODE_SERVER_NAME	"server"
 
-void batadv_gw_bandwidth_to_kbit(uint8_t gw_class, int *down, int *up);
 ssize_t batadv_gw_bandwidth_set(struct net_device *net_dev, char *buff,
 				size_t count);
+void batadv_gw_tvlv_container_update(struct batadv_priv *bat_priv);
+void batadv_gw_init(struct batadv_priv *bat_priv);
+void batadv_gw_free(struct batadv_priv *bat_priv);
 
 #endif /* _NET_BATMAN_ADV_GATEWAY_COMMON_H_ */
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index e2de68a5b0c6..cb9a446baba8 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -37,6 +37,7 @@
 #include "bridge_loop_avoidance.h"
 #include "distributed-arp-table.h"
 #include "unicast.h"
+#include "gateway_common.h"
 #include "vis.h"
 #include "hash.h"
 #include "bat_algo.h"
@@ -152,6 +153,8 @@ int batadv_mesh_init(struct net_device *soft_iface)
 	if (ret < 0)
 		goto err;
 
+	batadv_gw_init(bat_priv);
+
 	atomic_set(&bat_priv->gw.reselect, 0);
 	atomic_set(&bat_priv->mesh_state, BATADV_MESH_ACTIVE);
 
@@ -190,6 +193,8 @@ void batadv_mesh_free(struct net_device *soft_iface)
 	 */
 	batadv_originator_free(bat_priv);
 
+	batadv_gw_free(bat_priv);
+
 	free_percpu(bat_priv->bat_counters);
 	bat_priv->bat_counters = NULL;
 
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index f50553a7de62..5d53d2f38377 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -388,9 +388,7 @@ static void _batadv_purge_orig(struct batadv_priv *bat_priv)
 		hlist_for_each_entry_safe(orig_node, node_tmp,
 					  head, hash_entry) {
 			if (batadv_purge_orig_node(bat_priv, orig_node)) {
-				if (orig_node->gw_flags)
-					batadv_gw_node_delete(bat_priv,
-							      orig_node);
+				batadv_gw_node_delete(bat_priv, orig_node);
 				hlist_del_rcu(&orig_node->hash_entry);
 				batadv_orig_node_free_ref(orig_node);
 				continue;
diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index b5c21c418a5f..6d0b3a73cee7 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -118,6 +118,14 @@ enum batadv_bla_claimframe {
 	BATADV_CLAIM_TYPE_REQUEST	= 0x03,
 };
 
+/**
+ * enum batadv_tvlv_type - tvlv type definitions
+ * @BATADV_TVLV_GW: gateway tvlv
+ */
+enum batadv_tvlv_type {
+	BATADV_TVLV_GW		= 0x01,
+};
+
 /* the destination hardware field in the ARP frame is used to
  * transport the claim type and the group id
  */
@@ -147,7 +155,7 @@ struct batadv_ogm_packet {
 	__be32   seqno;
 	uint8_t  orig[ETH_ALEN];
 	uint8_t  prev_sender[ETH_ALEN];
-	uint8_t  gw_flags;  /* flags related to gateway class */
+	uint8_t  reserved;
 	uint8_t  tq;
 	uint8_t  tt_num_changes;
 	uint8_t  ttvn; /* translation table version number */
@@ -352,4 +360,15 @@ struct batadv_tvlv_hdr {
 	__be16  len;
 };
 
+/**
+ * struct batadv_tvlv_gateway_data - gateway data propagated through gw tvlv
+ *  container
+ * @bandwidth_down: advertised uplink download bandwidth
+ * @bandwidth_up: advertised uplink upload bandwidth
+ */
+struct batadv_tvlv_gateway_data {
+	__be32 bandwidth_down;
+	__be32 bandwidth_up;
+};
+
 #endif /* _NET_BATMAN_ADV_PACKET_H_ */
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 813db4e64602..84623a955d52 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -472,7 +472,8 @@ static int batadv_softif_init_late(struct net_device *dev)
 	atomic_set(&bat_priv->vis_mode, BATADV_VIS_TYPE_CLIENT_UPDATE);
 	atomic_set(&bat_priv->gw_mode, BATADV_GW_MODE_OFF);
 	atomic_set(&bat_priv->gw_sel_class, 20);
-	atomic_set(&bat_priv->gw_bandwidth, 41);
+	atomic_set(&bat_priv->gw.bandwidth_down, 100);
+	atomic_set(&bat_priv->gw.bandwidth_up, 20);
 	atomic_set(&bat_priv->orig_interval, 1000);
 	atomic_set(&bat_priv->hop_penalty, 30);
 #ifdef CONFIG_BATMAN_ADV_DEBUG
diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c
index 4114b961bc2c..68793f53f182 100644
--- a/net/batman-adv/sysfs.c
+++ b/net/batman-adv/sysfs.c
@@ -390,6 +390,7 @@ static ssize_t batadv_store_gw_mode(struct kobject *kobj,
 	 */
 	batadv_gw_check_client_stop(bat_priv);
 	atomic_set(&bat_priv->gw_mode, (unsigned int)gw_mode_tmp);
+	batadv_gw_tvlv_container_update(bat_priv);
 	return count;
 }
 
@@ -397,15 +398,13 @@ static ssize_t batadv_show_gw_bwidth(struct kobject *kobj,
 				     struct attribute *attr, char *buff)
 {
 	struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
-	int down, up;
-	int gw_bandwidth = atomic_read(&bat_priv->gw_bandwidth);
-
-	batadv_gw_bandwidth_to_kbit(gw_bandwidth, &down, &up);
-	return sprintf(buff, "%i%s/%i%s\n",
-		       (down > 2048 ? down / 1024 : down),
-		       (down > 2048 ? "MBit" : "KBit"),
-		       (up > 2048 ? up / 1024 : up),
-		       (up > 2048 ? "MBit" : "KBit"));
+	uint32_t down, up;
+
+	down = atomic_read(&bat_priv->gw.bandwidth_down);
+	up = atomic_read(&bat_priv->gw.bandwidth_up);
+
+	return sprintf(buff, "%u.%u/%u.%u MBit\n", down / 10,
+		       down % 10, up / 10, up % 10);
 }
 
 static ssize_t batadv_store_gw_bwidth(struct kobject *kobj,
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 4bdea16bc70c..b22a04391f6c 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -99,7 +99,6 @@ struct batadv_hard_iface {
  * @last_seen: time when last packet from this node was received
  * @bcast_seqno_reset: time when the broadcast seqno window was reset
  * @batman_seqno_reset: time when the batman seqno window was reset
- * @gw_flags: flags related to gateway class
  * @flags: for now only VIS_SERVER flag
  * @last_ttvn: last seen translation table version number
  * @tt_crc: CRC of the translation table
@@ -147,7 +146,6 @@ struct batadv_orig_node {
 	unsigned long last_seen;
 	unsigned long bcast_seqno_reset;
 	unsigned long batman_seqno_reset;
-	uint8_t gw_flags;
 	uint8_t flags;
 	atomic_t last_ttvn;
 	uint16_t tt_crc;
@@ -189,6 +187,8 @@ struct batadv_orig_node {
  * struct batadv_gw_node - structure for orig nodes announcing gw capabilities
  * @list: list node for batadv_priv_gw::list
  * @orig_node: pointer to corresponding orig node
+ * @bandwidth_down: advertised uplink download bandwidth
+ * @bandwidth_up: advertised uplink upload bandwidth
  * @deleted: this struct is scheduled for deletion
  * @refcount: number of contexts the object is used
  * @rcu: struct used for freeing in an RCU-safe manner
@@ -196,6 +196,8 @@ struct batadv_orig_node {
 struct batadv_gw_node {
 	struct hlist_node list;
 	struct batadv_orig_node *orig_node;
+	uint32_t bandwidth_down;
+	uint32_t bandwidth_up;
 	unsigned long deleted;
 	atomic_t refcount;
 	struct rcu_head rcu;
@@ -420,12 +422,16 @@ struct batadv_priv_debug_log {
  * @list: list of available gateway nodes
  * @list_lock: lock protecting gw_list & curr_gw
  * @curr_gw: pointer to currently selected gateway node
+ * @bandwidth_down: advertised uplink download bandwidth (if gw_mode server)
+ * @bandwidth_up: advertised uplink upload bandwidth (if gw_mode server)
  * @reselect: bool indicating a gateway re-selection is in progress
  */
 struct batadv_priv_gw {
 	struct hlist_head list;
 	spinlock_t list_lock; /* protects gw_list & curr_gw */
 	struct batadv_gw_node __rcu *curr_gw;  /* rcu protected pointer */
+	atomic_t bandwidth_down;
+	atomic_t bandwidth_up;
 	atomic_t reselect;
 };
 
@@ -521,7 +527,6 @@ struct batadv_priv_nc {
  * @vis_mode: vis operation: client or server (see batadv_vis_packettype)
  * @gw_mode: gateway operation: off, client or server (see batadv_gw_modes)
  * @gw_sel_class: gateway selection class (applies if gw_mode client)
- * @gw_bandwidth: gateway announced bandwidth (applies if gw_mode server)
  * @orig_interval: OGM broadcast interval in milliseconds
  * @hop_penalty: penalty which will be applied to an OGM's tq-field on every hop
  * @log_level: configured log level (see batadv_dbg_level)
@@ -569,7 +574,6 @@ struct batadv_priv {
 	atomic_t vis_mode;
 	atomic_t gw_mode;
 	atomic_t gw_sel_class;
-	atomic_t gw_bandwidth;
 	atomic_t orig_interval;
 	atomic_t hop_penalty;
 #ifdef CONFIG_BATMAN_ADV_DEBUG
-- 
cgit 


From 17cf0ea455f1a4a7e8436ef96236999e9c452a93 Mon Sep 17 00:00:00 2001
From: Marek Lindner <lindner_marek@yahoo.de>
Date: Tue, 23 Apr 2013 21:39:59 +0800
Subject: batman-adv: tvlv - add distributed arp table container

Create DAT container to announce DAT capabilities (if enabled).

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/distributed-arp-table.c | 64 ++++++++++++++++++++++++++++++++++
 net/batman-adv/distributed-arp-table.h |  5 +++
 net/batman-adv/packet.h                |  2 ++
 net/batman-adv/sysfs.c                 |  3 +-
 net/batman-adv/types.h                 | 10 ++++++
 5 files changed, 83 insertions(+), 1 deletion(-)

diff --git a/net/batman-adv/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c
index 06345d401588..f07ec320dc01 100644
--- a/net/batman-adv/distributed-arp-table.c
+++ b/net/batman-adv/distributed-arp-table.c
@@ -419,6 +419,10 @@ static bool batadv_is_orig_node_eligible(struct batadv_dat_candidate *res,
 	bool ret = false;
 	int j;
 
+	/* check if orig node candidate is running DAT */
+	if (!(candidate->capabilities & BATADV_ORIG_CAPA_HAS_DAT))
+		goto out;
+
 	/* Check if this node has already been selected... */
 	for (j = 0; j < select; j++)
 		if (res[j].orig_node == candidate)
@@ -625,6 +629,59 @@ out:
 	return ret;
 }
 
+/**
+ * batadv_dat_tvlv_container_update - update the dat tvlv container after dat
+ *  setting change
+ * @bat_priv: the bat priv with all the soft interface information
+ */
+static void batadv_dat_tvlv_container_update(struct batadv_priv *bat_priv)
+{
+	char dat_mode;
+
+	dat_mode = atomic_read(&bat_priv->distributed_arp_table);
+
+	switch (dat_mode) {
+	case 0:
+		batadv_tvlv_container_unregister(bat_priv, BATADV_TVLV_DAT, 1);
+		break;
+	case 1:
+		batadv_tvlv_container_register(bat_priv, BATADV_TVLV_DAT, 1,
+					       NULL, 0);
+		break;
+	}
+}
+
+/**
+ * batadv_dat_status_update - update the dat tvlv container after dat
+ *  setting change
+ * @net_dev: the soft interface net device
+ */
+void batadv_dat_status_update(struct net_device *net_dev)
+{
+	struct batadv_priv *bat_priv = netdev_priv(net_dev);
+	batadv_dat_tvlv_container_update(bat_priv);
+}
+
+/**
+ * batadv_gw_tvlv_ogm_handler_v1 - process incoming dat tvlv container
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig: the orig_node of the ogm
+ * @flags: flags indicating the tvlv state (see batadv_tvlv_handler_flags)
+ * @tvlv_value: tvlv buffer containing the gateway data
+ * @tvlv_value_len: tvlv buffer length
+ */
+static void batadv_dat_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv,
+					   struct batadv_orig_node *orig,
+					   uint8_t flags,
+					   void *tvlv_value,
+					   uint16_t tvlv_value_len)
+{
+	if (flags & BATADV_TVLV_HANDLER_OGM_CIFNOTFND)
+		orig->capabilities &= ~BATADV_ORIG_CAPA_HAS_DAT;
+	else
+		orig->capabilities |= BATADV_ORIG_CAPA_HAS_DAT;
+}
+
 /**
  * batadv_dat_hash_free - free the local DAT hash table
  * @bat_priv: the bat priv with all the soft interface information
@@ -657,6 +714,10 @@ int batadv_dat_init(struct batadv_priv *bat_priv)
 
 	batadv_dat_start_timer(bat_priv);
 
+	batadv_tvlv_handler_register(bat_priv, batadv_dat_tvlv_ogm_handler_v1,
+				     NULL, BATADV_TVLV_DAT, 1,
+				     BATADV_TVLV_HANDLER_OGM_CIFNOTFND);
+	batadv_dat_tvlv_container_update(bat_priv);
 	return 0;
 }
 
@@ -666,6 +727,9 @@ int batadv_dat_init(struct batadv_priv *bat_priv)
  */
 void batadv_dat_free(struct batadv_priv *bat_priv)
 {
+	batadv_tvlv_container_unregister(bat_priv, BATADV_TVLV_DAT, 1);
+	batadv_tvlv_handler_unregister(bat_priv, BATADV_TVLV_DAT, 1);
+
 	cancel_delayed_work_sync(&bat_priv->dat.work);
 
 	batadv_dat_hash_free(bat_priv);
diff --git a/net/batman-adv/distributed-arp-table.h b/net/batman-adv/distributed-arp-table.h
index 125c8c6fcfad..60d853beb8d8 100644
--- a/net/batman-adv/distributed-arp-table.h
+++ b/net/batman-adv/distributed-arp-table.h
@@ -29,6 +29,7 @@
 
 #define BATADV_DAT_ADDR_MAX ((batadv_dat_addr_t)~(batadv_dat_addr_t)0)
 
+void batadv_dat_status_update(struct net_device *net_dev);
 bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
 					   struct sk_buff *skb);
 bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv,
@@ -98,6 +99,10 @@ static inline void batadv_dat_inc_counter(struct batadv_priv *bat_priv,
 
 #else
 
+static inline void batadv_dat_status_update(struct net_device *net_dev)
+{
+}
+
 static inline bool
 batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
 				      struct sk_buff *skb)
diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index 6d0b3a73cee7..8d470b2696ac 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -121,9 +121,11 @@ enum batadv_bla_claimframe {
 /**
  * enum batadv_tvlv_type - tvlv type definitions
  * @BATADV_TVLV_GW: gateway tvlv
+ * @BATADV_TVLV_DAT: distributed arp table tvlv
  */
 enum batadv_tvlv_type {
 	BATADV_TVLV_GW		= 0x01,
+	BATADV_TVLV_DAT		= 0x02,
 };
 
 /* the destination hardware field in the ARP frame is used to
diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c
index 68793f53f182..e1a826e43210 100644
--- a/net/batman-adv/sysfs.c
+++ b/net/batman-adv/sysfs.c
@@ -425,7 +425,8 @@ BATADV_ATTR_SIF_BOOL(bonding, S_IRUGO | S_IWUSR, NULL);
 BATADV_ATTR_SIF_BOOL(bridge_loop_avoidance, S_IRUGO | S_IWUSR, NULL);
 #endif
 #ifdef CONFIG_BATMAN_ADV_DAT
-BATADV_ATTR_SIF_BOOL(distributed_arp_table, S_IRUGO | S_IWUSR, NULL);
+BATADV_ATTR_SIF_BOOL(distributed_arp_table, S_IRUGO | S_IWUSR,
+		     batadv_dat_status_update);
 #endif
 BATADV_ATTR_SIF_BOOL(fragmentation, S_IRUGO | S_IWUSR, batadv_update_min_mtu);
 BATADV_ATTR_SIF_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL);
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index b22a04391f6c..35ce83480685 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -100,6 +100,7 @@ struct batadv_hard_iface {
  * @bcast_seqno_reset: time when the broadcast seqno window was reset
  * @batman_seqno_reset: time when the batman seqno window was reset
  * @flags: for now only VIS_SERVER flag
+ * @capabilities: announced capabilities of this originator
  * @last_ttvn: last seen translation table version number
  * @tt_crc: CRC of the translation table
  * @tt_buff: last tt changeset this node received from the orig node
@@ -147,6 +148,7 @@ struct batadv_orig_node {
 	unsigned long bcast_seqno_reset;
 	unsigned long batman_seqno_reset;
 	uint8_t flags;
+	uint8_t capabilities;
 	atomic_t last_ttvn;
 	uint16_t tt_crc;
 	unsigned char *tt_buff;
@@ -183,6 +185,14 @@ struct batadv_orig_node {
 #endif
 };
 
+/**
+ * enum batadv_orig_capabilities - orig node capabilities
+ * @BATADV_ORIG_CAPA_HAS_DAT: orig node has distributed arp table enabled
+ */
+enum batadv_orig_capabilities {
+	BATADV_ORIG_CAPA_HAS_DAT = BIT(0),
+};
+
 /**
  * struct batadv_gw_node - structure for orig nodes announcing gw capabilities
  * @list: list node for batadv_priv_gw::list
-- 
cgit 


From 3f4841ffb336075f74b05fe4a205e877bb22848d Mon Sep 17 00:00:00 2001
From: Marek Lindner <lindner_marek@yahoo.de>
Date: Tue, 23 Apr 2013 21:40:00 +0800
Subject: batman-adv: tvlv - add network coding container

Create network coding container to announce network coding
capabilities (if enabled).

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/network-coding.c | 63 +++++++++++++++++++++++++++++++++++++++++
 net/batman-adv/network-coding.h |  5 ++++
 net/batman-adv/packet.h         |  2 ++
 net/batman-adv/sysfs.c          |  4 ++-
 net/batman-adv/types.h          |  2 ++
 5 files changed, 75 insertions(+), 1 deletion(-)

diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c
index 4ecc0b6bf8ab..23f611bedb0f 100644
--- a/net/batman-adv/network-coding.c
+++ b/net/batman-adv/network-coding.c
@@ -58,6 +58,59 @@ static void batadv_nc_start_timer(struct batadv_priv *bat_priv)
 			   msecs_to_jiffies(10));
 }
 
+/**
+ * batadv_nc_tvlv_container_update - update the network coding tvlv container
+ *  after network coding setting change
+ * @bat_priv: the bat priv with all the soft interface information
+ */
+static void batadv_nc_tvlv_container_update(struct batadv_priv *bat_priv)
+{
+	char nc_mode;
+
+	nc_mode = atomic_read(&bat_priv->network_coding);
+
+	switch (nc_mode) {
+	case 0:
+		batadv_tvlv_container_unregister(bat_priv, BATADV_TVLV_NC, 1);
+		break;
+	case 1:
+		batadv_tvlv_container_register(bat_priv, BATADV_TVLV_NC, 1,
+					       NULL, 0);
+		break;
+	}
+}
+
+/**
+ * batadv_nc_status_update - update the network coding tvlv container after
+ *  network coding setting change
+ * @net_dev: the soft interface net device
+ */
+void batadv_nc_status_update(struct net_device *net_dev)
+{
+	struct batadv_priv *bat_priv = netdev_priv(net_dev);
+	batadv_nc_tvlv_container_update(bat_priv);
+}
+
+/**
+ * batadv_nc_tvlv_ogm_handler_v1 - process incoming nc tvlv container
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig: the orig_node of the ogm
+ * @flags: flags indicating the tvlv state (see batadv_tvlv_handler_flags)
+ * @tvlv_value: tvlv buffer containing the gateway data
+ * @tvlv_value_len: tvlv buffer length
+ */
+static void batadv_nc_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv,
+					  struct batadv_orig_node *orig,
+					  uint8_t flags,
+					  void *tvlv_value,
+					  uint16_t tvlv_value_len)
+{
+	if (flags & BATADV_TVLV_HANDLER_OGM_CIFNOTFND)
+		orig->capabilities &= ~BATADV_ORIG_CAPA_HAS_NC;
+	else
+		orig->capabilities |= BATADV_ORIG_CAPA_HAS_NC;
+}
+
 /**
  * batadv_nc_mesh_init - initialise coding hash table and start house keeping
  * @bat_priv: the bat priv with all the soft interface information
@@ -87,6 +140,10 @@ int batadv_nc_mesh_init(struct batadv_priv *bat_priv)
 	INIT_DELAYED_WORK(&bat_priv->nc.work, batadv_nc_worker);
 	batadv_nc_start_timer(bat_priv);
 
+	batadv_tvlv_handler_register(bat_priv, batadv_nc_tvlv_ogm_handler_v1,
+				     NULL, BATADV_TVLV_NC, 1,
+				     BATADV_TVLV_HANDLER_OGM_CIFNOTFND);
+	batadv_nc_tvlv_container_update(bat_priv);
 	return 0;
 
 err:
@@ -802,6 +859,10 @@ void batadv_nc_update_nc_node(struct batadv_priv *bat_priv,
 	if (!atomic_read(&bat_priv->network_coding))
 		goto out;
 
+	/* check if orig node is network coding enabled */
+	if (!(orig_node->capabilities & BATADV_ORIG_CAPA_HAS_NC))
+		goto out;
+
 	/* accept ogms from 'good' neighbors and single hop neighbors */
 	if (!batadv_can_nc_with_orig(bat_priv, orig_node, ogm_packet) &&
 	    !is_single_hop_neigh)
@@ -1735,6 +1796,8 @@ free_nc_packet:
  */
 void batadv_nc_mesh_free(struct batadv_priv *bat_priv)
 {
+	batadv_tvlv_container_unregister(bat_priv, BATADV_TVLV_NC, 1);
+	batadv_tvlv_handler_unregister(bat_priv, BATADV_TVLV_NC, 1);
 	cancel_delayed_work_sync(&bat_priv->nc.work);
 
 	batadv_nc_purge_paths(bat_priv, bat_priv->nc.coding_hash, NULL);
diff --git a/net/batman-adv/network-coding.h b/net/batman-adv/network-coding.h
index ddfa618e80bf..d4fd315b5261 100644
--- a/net/batman-adv/network-coding.h
+++ b/net/batman-adv/network-coding.h
@@ -22,6 +22,7 @@
 
 #ifdef CONFIG_BATMAN_ADV_NC
 
+void batadv_nc_status_update(struct net_device *net_dev);
 int batadv_nc_init(void);
 int batadv_nc_mesh_init(struct batadv_priv *bat_priv);
 void batadv_nc_mesh_free(struct batadv_priv *bat_priv);
@@ -47,6 +48,10 @@ int batadv_nc_init_debugfs(struct batadv_priv *bat_priv);
 
 #else /* ifdef CONFIG_BATMAN_ADV_NC */
 
+static inline void batadv_nc_status_update(struct net_device *net_dev)
+{
+}
+
 static inline int batadv_nc_init(void)
 {
 	return 0;
diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index 8d470b2696ac..55deb4dea842 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -122,10 +122,12 @@ enum batadv_bla_claimframe {
  * enum batadv_tvlv_type - tvlv type definitions
  * @BATADV_TVLV_GW: gateway tvlv
  * @BATADV_TVLV_DAT: distributed arp table tvlv
+ * @BATADV_TVLV_NC: network coding tvlv
  */
 enum batadv_tvlv_type {
 	BATADV_TVLV_GW		= 0x01,
 	BATADV_TVLV_DAT		= 0x02,
+	BATADV_TVLV_NC		= 0x03,
 };
 
 /* the destination hardware field in the ARP frame is used to
diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c
index e1a826e43210..fbc1c251711d 100644
--- a/net/batman-adv/sysfs.c
+++ b/net/batman-adv/sysfs.c
@@ -21,6 +21,7 @@
 #include "sysfs.h"
 #include "translation-table.h"
 #include "distributed-arp-table.h"
+#include "network-coding.h"
 #include "originator.h"
 #include "hard-interface.h"
 #include "gateway_common.h"
@@ -447,7 +448,8 @@ static BATADV_ATTR(gw_bandwidth, S_IRUGO | S_IWUSR, batadv_show_gw_bwidth,
 BATADV_ATTR_SIF_UINT(log_level, S_IRUGO | S_IWUSR, 0, BATADV_DBG_ALL, NULL);
 #endif
 #ifdef CONFIG_BATMAN_ADV_NC
-BATADV_ATTR_SIF_BOOL(network_coding, S_IRUGO | S_IWUSR, NULL);
+BATADV_ATTR_SIF_BOOL(network_coding, S_IRUGO | S_IWUSR,
+		     batadv_nc_status_update);
 #endif
 
 static struct batadv_attribute *batadv_mesh_attrs[] = {
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 35ce83480685..fa5cb0d99ed5 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -188,9 +188,11 @@ struct batadv_orig_node {
 /**
  * enum batadv_orig_capabilities - orig node capabilities
  * @BATADV_ORIG_CAPA_HAS_DAT: orig node has distributed arp table enabled
+ * @BATADV_ORIG_CAPA_HAS_NC: orig node has network coding enabled
  */
 enum batadv_orig_capabilities {
 	BATADV_ORIG_CAPA_HAS_DAT = BIT(0),
+	BATADV_ORIG_CAPA_HAS_NC = BIT(1),
 };
 
 /**
-- 
cgit 


From e1bf0c14096f9dc09c7695f42051d178b23d0670 Mon Sep 17 00:00:00 2001
From: Marek Lindner <lindner_marek@yahoo.de>
Date: Tue, 23 Apr 2013 21:40:01 +0800
Subject: batman-adv: tvlv - convert tt data sent within OGMs

The translation table meta data (version number, crc checksum, etc)
as well as the translation table diff propgated within OGMs now uses
the newly introduced tvlv infrastructure.

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/bat_iv_ogm.c        |  44 +++----
 net/batman-adv/packet.h            |  51 ++++++--
 net/batman-adv/translation-table.c | 240 ++++++++++++++++++++-----------------
 net/batman-adv/translation-table.h |   8 +-
 net/batman-adv/types.h             |   2 +-
 5 files changed, 187 insertions(+), 158 deletions(-)

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index f0f02d1a10d7..871ba672bdc2 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -137,8 +137,6 @@ static int batadv_iv_ogm_iface_enable(struct batadv_hard_iface *hard_iface)
 	batadv_ogm_packet->flags = BATADV_NO_FLAGS;
 	batadv_ogm_packet->reserved = 0;
 	batadv_ogm_packet->tq = BATADV_TQ_MAX_VALUE;
-	batadv_ogm_packet->tt_num_changes = 0;
-	batadv_ogm_packet->ttvn = 0;
 
 	res = 0;
 
@@ -257,14 +255,14 @@ static void batadv_iv_ogm_send_to_if(struct batadv_forw_packet *forw_packet,
 			fwd_str = "Sending own";
 
 		batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
-			   "%s %spacket (originator %pM, seqno %u, TQ %d, TTL %d, IDF %s, ttvn %d) on interface %s [%pM]\n",
+			   "%s %spacket (originator %pM, seqno %u, TQ %d, TTL %d, IDF %s) on interface %s [%pM]\n",
 			   fwd_str, (packet_num > 0 ? "aggregated " : ""),
 			   batadv_ogm_packet->orig,
 			   ntohl(batadv_ogm_packet->seqno),
 			   batadv_ogm_packet->tq, batadv_ogm_packet->header.ttl,
 			   (batadv_ogm_packet->flags & BATADV_DIRECTLINK ?
 			    "on" : "off"),
-			   batadv_ogm_packet->ttvn, hard_iface->net_dev->name,
+			   hard_iface->net_dev->name,
 			   hard_iface->net_dev->dev_addr);
 
 		buff_pos += BATADV_OGM_HLEN;
@@ -689,17 +687,22 @@ static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
 	struct batadv_ogm_packet *batadv_ogm_packet;
 	struct batadv_hard_iface *primary_if;
 	int *ogm_buff_len = &hard_iface->bat_iv.ogm_buff_len;
-	int vis_server, tt_num_changes = 0;
+	int vis_server;
 	uint32_t seqno;
 	uint16_t tvlv_len = 0;
 
 	vis_server = atomic_read(&bat_priv->vis_mode);
 	primary_if = batadv_primary_if_get_selected(bat_priv);
 
-	if (hard_iface == primary_if)
+	if (hard_iface == primary_if) {
+		/* tt changes have to be committed before the tvlv data is
+		 * appended as it may alter the tt tvlv container
+		 */
+		batadv_tt_local_commit_changes(bat_priv);
 		tvlv_len = batadv_tvlv_container_ogm_append(bat_priv, ogm_buff,
 							    ogm_buff_len,
 							    BATADV_OGM_HLEN);
+	}
 
 	batadv_ogm_packet = (struct batadv_ogm_packet *)(*ogm_buff);
 	batadv_ogm_packet->tvlv_len = htons(tvlv_len);
@@ -709,11 +712,6 @@ static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
 	batadv_ogm_packet->seqno = htonl(seqno);
 	atomic_inc(&hard_iface->bat_iv.ogm_seqno);
 
-	batadv_ogm_packet->ttvn = atomic_read(&bat_priv->tt.vn);
-	batadv_ogm_packet->tt_crc = htons(bat_priv->tt.local_crc);
-	if (tt_num_changes >= 0)
-		batadv_ogm_packet->tt_num_changes = tt_num_changes;
-
 	if (vis_server == BATADV_VIS_TYPE_SERVER_SYNC)
 		batadv_ogm_packet->flags |= BATADV_VIS_SERVER;
 	else
@@ -814,11 +812,11 @@ batadv_iv_ogm_orig_update(struct batadv_priv *bat_priv,
 	 */
 	router = batadv_orig_node_get_router(orig_node);
 	if (router == neigh_node)
-		goto update_tt;
+		goto out;
 
 	/* if this neighbor does not offer a better TQ we won't consider it */
 	if (router && (router->tq_avg > neigh_node->tq_avg))
-		goto update_tt;
+		goto out;
 
 	/* if the TQ is the same and the link not more symmetric we
 	 * won't consider it either
@@ -837,22 +835,10 @@ batadv_iv_ogm_orig_update(struct batadv_priv *bat_priv,
 		spin_unlock_bh(&orig_node_tmp->ogm_cnt_lock);
 
 		if (sum_orig >= sum_neigh)
-			goto update_tt;
+			goto out;
 	}
 
 	batadv_update_route(bat_priv, orig_node, neigh_node);
-
-update_tt:
-	/* I have to check for transtable changes only if the OGM has been
-	 * sent through a primary interface
-	 */
-	if (((batadv_ogm_packet->orig != ethhdr->h_source) &&
-	     (batadv_ogm_packet->header.ttl > 2)) ||
-	    (batadv_ogm_packet->flags & BATADV_PRIMARIES_FIRST_HOP))
-		batadv_tt_update_orig(bat_priv, orig_node, tt_buff,
-				      batadv_ogm_packet->tt_num_changes,
-				      batadv_ogm_packet->ttvn,
-				      ntohs(batadv_ogm_packet->tt_crc));
 	goto out;
 
 unlock:
@@ -1103,13 +1089,11 @@ static void batadv_iv_ogm_process(const struct ethhdr *ethhdr,
 		is_single_hop_neigh = true;
 
 	batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
-		   "Received BATMAN packet via NB: %pM, IF: %s [%pM] (from OG: %pM, via prev OG: %pM, seqno %u, ttvn %u, crc %#.4x, changes %u, tq %d, TTL %d, V %d, IDF %d)\n",
+		   "Received BATMAN packet via NB: %pM, IF: %s [%pM] (from OG: %pM, via prev OG: %pM, seqno %u, tq %d, TTL %d, V %d, IDF %d)\n",
 		   ethhdr->h_source, if_incoming->net_dev->name,
 		   if_incoming->net_dev->dev_addr, batadv_ogm_packet->orig,
 		   batadv_ogm_packet->prev_sender,
-		   ntohl(batadv_ogm_packet->seqno), batadv_ogm_packet->ttvn,
-		   ntohs(batadv_ogm_packet->tt_crc),
-		   batadv_ogm_packet->tt_num_changes, batadv_ogm_packet->tq,
+		   ntohl(batadv_ogm_packet->seqno), batadv_ogm_packet->tq,
 		   batadv_ogm_packet->header.ttl,
 		   batadv_ogm_packet->header.version, has_directlink_flag);
 
diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index 55deb4dea842..cd59fcc9b79a 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -86,14 +86,21 @@ enum batadv_unicast_frag_flags {
 /* TT_QUERY subtypes */
 #define BATADV_TT_QUERY_TYPE_MASK 0x3
 
-enum batadv_tt_query_packettype {
-	BATADV_TT_REQUEST  = 0,
-	BATADV_TT_RESPONSE = 1,
-};
+/* tt data subtypes */
+#define BATADV_TT_DATA_TYPE_MASK 0x0F
 
-/* TT_QUERY flags */
-enum batadv_tt_query_flags {
-	BATADV_TT_FULL_TABLE = BIT(2),
+/**
+ * enum batadv_tt_data_flags - flags for tt data tvlv
+ * @BATADV_TT_OGM_DIFF: TT diff propagated through OGM
+ * @BATADV_TT_REQUEST: TT request message
+ * @BATADV_TT_RESPONSE: TT response message
+ * @BATADV_TT_FULL_TABLE: contains full table to replace existing table
+ */
+enum batadv_tt_data_flags {
+	BATADV_TT_OGM_DIFF   = BIT(0),
+	BATADV_TT_REQUEST    = BIT(1),
+	BATADV_TT_RESPONSE   = BIT(2),
+	BATADV_TT_FULL_TABLE = BIT(4),
 };
 
 /* BATADV_TT_CLIENT flags.
@@ -123,11 +130,13 @@ enum batadv_bla_claimframe {
  * @BATADV_TVLV_GW: gateway tvlv
  * @BATADV_TVLV_DAT: distributed arp table tvlv
  * @BATADV_TVLV_NC: network coding tvlv
+ * @BATADV_TVLV_TT: translation table tvlv
  */
 enum batadv_tvlv_type {
 	BATADV_TVLV_GW		= 0x01,
 	BATADV_TVLV_DAT		= 0x02,
 	BATADV_TVLV_NC		= 0x03,
+	BATADV_TVLV_TT		= 0x04,
 };
 
 /* the destination hardware field in the ARP frame is used to
@@ -161,9 +170,6 @@ struct batadv_ogm_packet {
 	uint8_t  prev_sender[ETH_ALEN];
 	uint8_t  reserved;
 	uint8_t  tq;
-	uint8_t  tt_num_changes;
-	uint8_t  ttvn; /* translation table version number */
-	__be16   tt_crc;
 	__be16   tvlv_len;
 } __packed;
 
@@ -375,4 +381,29 @@ struct batadv_tvlv_gateway_data {
 	__be32 bandwidth_up;
 };
 
+/**
+ * struct batadv_tvlv_tt_data - tt data propagated through the tt tvlv container
+ * @flags: translation table flags (see batadv_tt_data_flags)
+ * @ttvn: translation table version number
+ * @crc: crc16 checksum of the local translation table
+ */
+struct batadv_tvlv_tt_data {
+	uint8_t flags;
+	uint8_t ttvn;
+	__be16  crc;
+};
+
+/**
+ * struct batadv_tvlv_tt_change - translation table diff data
+ * @flags: status indicators concerning the non-mesh client (see
+ *  batadv_tt_client_flags)
+ * @reserved: reserved field
+ * @addr: mac address of non-mesh client that triggered this tt change
+ */
+struct batadv_tvlv_tt_change {
+	uint8_t flags;
+	uint8_t reserved;
+	uint8_t addr[ETH_ALEN];
+};
+
 #endif /* _NET_BATMAN_ADV_PACKET_H_ */
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 34510f38708f..3fac67ffd524 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -180,11 +180,11 @@ static void batadv_tt_local_event(struct batadv_priv *bat_priv,
 	bool del_op_requested, del_op_entry;
 
 	tt_change_node = kmalloc(sizeof(*tt_change_node), GFP_ATOMIC);
-
 	if (!tt_change_node)
 		return;
 
 	tt_change_node->change.flags = flags;
+	tt_change_node->change.reserved = 0;
 	memcpy(tt_change_node->change.addr, common->addr, ETH_ALEN);
 
 	del_op_requested = flags & BATADV_TT_CLIENT_DEL;
@@ -376,71 +376,52 @@ out:
 		batadv_tt_global_entry_free_ref(tt_global);
 }
 
-static void batadv_tt_realloc_packet_buff(unsigned char **packet_buff,
-					  int *packet_buff_len,
-					  int min_packet_len,
-					  int new_packet_len)
-{
-	unsigned char *new_buff;
-
-	new_buff = kmalloc(new_packet_len, GFP_ATOMIC);
-
-	/* keep old buffer if kmalloc should fail */
-	if (new_buff) {
-		memcpy(new_buff, *packet_buff, min_packet_len);
-		kfree(*packet_buff);
-		*packet_buff = new_buff;
-		*packet_buff_len = new_packet_len;
-	}
-}
-
-static void batadv_tt_prepare_packet_buff(struct batadv_priv *bat_priv,
-					  unsigned char **packet_buff,
-					  int *packet_buff_len,
-					  int min_packet_len)
+/**
+ * batadv_tt_tvlv_container_update - update the translation table tvlv container
+ *  after local tt changes have been committed
+ * @bat_priv: the bat priv with all the soft interface information
+ */
+static void batadv_tt_tvlv_container_update(struct batadv_priv *bat_priv)
 {
-	int req_len;
+	struct batadv_tt_change_node *entry, *safe;
+	struct batadv_tvlv_tt_data *tt_data;
+	struct batadv_tvlv_tt_change *tt_change;
+	int tt_diff_len = 0, tt_change_len = 0;
+	int tt_diff_entries_num = 0, tt_diff_entries_count = 0;
 
-	req_len = min_packet_len;
-	req_len += batadv_tt_len(atomic_read(&bat_priv->tt.local_changes));
+	tt_diff_len += batadv_tt_len(atomic_read(&bat_priv->tt.local_changes));
 
 	/* if we have too many changes for one packet don't send any
 	 * and wait for the tt table request which will be fragmented
 	 */
-	if (req_len > bat_priv->soft_iface->mtu)
-		req_len = min_packet_len;
+	if (tt_diff_len > bat_priv->soft_iface->mtu)
+		tt_diff_len = 0;
 
-	batadv_tt_realloc_packet_buff(packet_buff, packet_buff_len,
-				      min_packet_len, req_len);
-}
-
-static int batadv_tt_changes_fill_buff(struct batadv_priv *bat_priv,
-				       unsigned char **packet_buff,
-				       int *packet_buff_len,
-				       int min_packet_len)
-{
-	struct batadv_tt_change_node *entry, *safe;
-	int count = 0, tot_changes = 0, new_len;
-	unsigned char *tt_buff;
+	tt_data = kzalloc(sizeof(*tt_data) + tt_diff_len, GFP_ATOMIC);
+	if (!tt_data)
+		return;
 
-	batadv_tt_prepare_packet_buff(bat_priv, packet_buff,
-				      packet_buff_len, min_packet_len);
+	tt_data->flags = BATADV_TT_OGM_DIFF;
+	tt_data->ttvn = atomic_read(&bat_priv->tt.vn);
+	tt_data->crc = htons(bat_priv->tt.local_crc);
 
-	new_len = *packet_buff_len - min_packet_len;
-	tt_buff = *packet_buff + min_packet_len;
+	if (tt_diff_len == 0)
+		goto container_register;
 
-	if (new_len > 0)
-		tot_changes = new_len / batadv_tt_len(1);
+	tt_diff_entries_num = tt_diff_len / batadv_tt_len(1);
 
 	spin_lock_bh(&bat_priv->tt.changes_list_lock);
 	atomic_set(&bat_priv->tt.local_changes, 0);
 
+	tt_change = (struct batadv_tvlv_tt_change *)(tt_data + 1);
+
 	list_for_each_entry_safe(entry, safe, &bat_priv->tt.changes_list,
 				 list) {
-		if (count < tot_changes) {
-			memcpy(tt_buff + batadv_tt_len(count),
-			       &entry->change, sizeof(struct batadv_tt_change));
-			count++;
+		if (tt_diff_entries_count < tt_diff_entries_num) {
+			memcpy(tt_change + tt_diff_entries_count,
+			       &entry->change,
+			       sizeof(struct batadv_tvlv_tt_change));
+			tt_diff_entries_count++;
 		}
 		list_del(&entry->list);
 		kfree(entry);
@@ -452,20 +433,25 @@ static int batadv_tt_changes_fill_buff(struct batadv_priv *bat_priv,
 	kfree(bat_priv->tt.last_changeset);
 	bat_priv->tt.last_changeset_len = 0;
 	bat_priv->tt.last_changeset = NULL;
+	tt_change_len = batadv_tt_len(tt_diff_entries_count);
 	/* check whether this new OGM has no changes due to size problems */
-	if (new_len > 0) {
+	if (tt_diff_entries_count > 0) {
 		/* if kmalloc() fails we will reply with the full table
 		 * instead of providing the diff
 		 */
-		bat_priv->tt.last_changeset = kmalloc(new_len, GFP_ATOMIC);
+		bat_priv->tt.last_changeset = kzalloc(tt_diff_len, GFP_ATOMIC);
 		if (bat_priv->tt.last_changeset) {
-			memcpy(bat_priv->tt.last_changeset, tt_buff, new_len);
-			bat_priv->tt.last_changeset_len = new_len;
+			memcpy(bat_priv->tt.last_changeset,
+			       tt_change, tt_change_len);
+			bat_priv->tt.last_changeset_len = tt_diff_len;
 		}
 	}
 	spin_unlock_bh(&bat_priv->tt.last_changeset_lock);
 
-	return count;
+container_register:
+	batadv_tvlv_container_register(bat_priv, BATADV_TVLV_TT, 1, tt_data,
+				       sizeof(*tt_data) + tt_change_len);
+	kfree(tt_data);
 }
 
 int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset)
@@ -1504,7 +1490,7 @@ static void batadv_tt_req_list_free(struct batadv_priv *bat_priv)
 static void batadv_tt_save_orig_buffer(struct batadv_priv *bat_priv,
 				       struct batadv_orig_node *orig_node,
 				       const unsigned char *tt_buff,
-				       uint8_t tt_num_changes)
+				       uint16_t tt_num_changes)
 {
 	uint16_t tt_buff_len = batadv_tt_len(tt_num_changes);
 
@@ -2126,25 +2112,6 @@ out:
 		batadv_orig_node_free_ref(orig_node);
 }
 
-int batadv_tt_init(struct batadv_priv *bat_priv)
-{
-	int ret;
-
-	ret = batadv_tt_local_init(bat_priv);
-	if (ret < 0)
-		return ret;
-
-	ret = batadv_tt_global_init(bat_priv);
-	if (ret < 0)
-		return ret;
-
-	INIT_DELAYED_WORK(&bat_priv->tt.work, batadv_tt_purge);
-	queue_delayed_work(batadv_event_workqueue, &bat_priv->tt.work,
-			   msecs_to_jiffies(BATADV_TT_WORK_PERIOD));
-
-	return 1;
-}
-
 static void batadv_tt_roam_list_free(struct batadv_priv *bat_priv)
 {
 	struct batadv_tt_roam_node *node, *safe;
@@ -2297,6 +2264,9 @@ static void batadv_tt_purge(struct work_struct *work)
 
 void batadv_tt_free(struct batadv_priv *bat_priv)
 {
+	batadv_tvlv_container_unregister(bat_priv, BATADV_TVLV_TT, 1);
+	batadv_tvlv_handler_unregister(bat_priv, BATADV_TVLV_TT, 1);
+
 	cancel_delayed_work_sync(&bat_priv->tt.work);
 
 	batadv_tt_local_table_free(bat_priv);
@@ -2384,14 +2354,20 @@ static void batadv_tt_local_purge_pending_clients(struct batadv_priv *bat_priv)
 	}
 }
 
-static int batadv_tt_commit_changes(struct batadv_priv *bat_priv,
-				    unsigned char **packet_buff,
-				    int *packet_buff_len, int packet_min_len)
+/**
+ * batadv_tt_local_commit_changes - commit all pending local tt changes which
+ *  have been queued in the time since the last commit
+ * @bat_priv: the bat priv with all the soft interface information
+ */
+void batadv_tt_local_commit_changes(struct batadv_priv *bat_priv)
 {
 	uint16_t changed_num = 0;
 
-	if (atomic_read(&bat_priv->tt.local_changes) < 1)
-		return -ENOENT;
+	if (atomic_read(&bat_priv->tt.local_changes) < 1) {
+		if (!batadv_atomic_dec_not_zero(&bat_priv->tt.ogm_append_cnt))
+			batadv_tt_tvlv_container_update(bat_priv);
+		return;
+	}
 
 	changed_num = batadv_tt_set_flags(bat_priv->tt.local_hash,
 					  BATADV_TT_CLIENT_NEW, false);
@@ -2409,32 +2385,7 @@ static int batadv_tt_commit_changes(struct batadv_priv *bat_priv,
 
 	/* reset the sending counter */
 	atomic_set(&bat_priv->tt.ogm_append_cnt, BATADV_TT_OGM_APPEND_MAX);
-
-	return batadv_tt_changes_fill_buff(bat_priv, packet_buff,
-					   packet_buff_len, packet_min_len);
-}
-
-/* when calling this function (hard_iface == primary_if) has to be true */
-int batadv_tt_append_diff(struct batadv_priv *bat_priv,
-			  unsigned char **packet_buff, int *packet_buff_len,
-			  int packet_min_len)
-{
-	int tt_num_changes;
-
-	/* if at least one change happened */
-	tt_num_changes = batadv_tt_commit_changes(bat_priv, packet_buff,
-						  packet_buff_len,
-						  packet_min_len);
-
-	/* if the changes have been sent often enough */
-	if ((tt_num_changes < 0) &&
-	    (!batadv_atomic_dec_not_zero(&bat_priv->tt.ogm_append_cnt))) {
-		batadv_tt_realloc_packet_buff(packet_buff, packet_buff_len,
-					      packet_min_len, packet_min_len);
-		tt_num_changes = 0;
-	}
-
-	return tt_num_changes;
+	batadv_tt_tvlv_container_update(bat_priv);
 }
 
 bool batadv_is_ap_isolated(struct batadv_priv *bat_priv, uint8_t *src,
@@ -2468,10 +2419,21 @@ out:
 	return ret;
 }
 
-void batadv_tt_update_orig(struct batadv_priv *bat_priv,
-			   struct batadv_orig_node *orig_node,
-			   const unsigned char *tt_buff, uint8_t tt_num_changes,
-			   uint8_t ttvn, uint16_t tt_crc)
+/**
+ * batadv_tt_update_orig - update global translation table with new tt
+ *  information received via ogms
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig: the orig_node of the ogm
+ * @tt_buff: buffer holding the tt information
+ * @tt_num_changes: number of tt changes inside the tt buffer
+ * @ttvn: translation table version number of this changeset
+ * @tt_crc: crc16 checksum of orig node's translation table
+ */
+static void batadv_tt_update_orig(struct batadv_priv *bat_priv,
+				  struct batadv_orig_node *orig_node,
+				  const unsigned char *tt_buff,
+				  uint16_t tt_num_changes, uint8_t ttvn,
+				  uint16_t tt_crc)
 {
 	uint8_t orig_ttvn = (uint8_t)atomic_read(&orig_node->last_ttvn);
 	bool full_table = true;
@@ -2605,3 +2567,61 @@ bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
 out:
 	return ret;
 }
+
+/**
+ * batadv_tt_tvlv_ogm_handler_v1 - process incoming tt tvlv container
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig: the orig_node of the ogm
+ * @flags: flags indicating the tvlv state (see batadv_tvlv_handler_flags)
+ * @tvlv_value: tvlv buffer containing the gateway data
+ * @tvlv_value_len: tvlv buffer length
+ */
+static void batadv_tt_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv,
+					  struct batadv_orig_node *orig,
+					  uint8_t flags,
+					  void *tvlv_value,
+					  uint16_t tvlv_value_len)
+{
+	struct batadv_tvlv_tt_data *tt_data;
+	uint16_t num_entries;
+
+	if (tvlv_value_len < sizeof(*tt_data))
+		return;
+
+	tt_data = (struct batadv_tvlv_tt_data *)tvlv_value;
+	tvlv_value_len -= sizeof(*tt_data);
+
+	num_entries = tvlv_value_len / batadv_tt_len(1);
+
+	batadv_tt_update_orig(bat_priv, orig,
+			      (unsigned char *)(tt_data + 1),
+			      num_entries, tt_data->ttvn, ntohs(tt_data->crc));
+}
+
+/**
+ * batadv_tt_init - initialise the translation table internals
+ * @bat_priv: the bat priv with all the soft interface information
+ *
+ * Return 0 on success or negative error number in case of failure.
+ */
+int batadv_tt_init(struct batadv_priv *bat_priv)
+{
+	int ret;
+
+	ret = batadv_tt_local_init(bat_priv);
+	if (ret < 0)
+		return ret;
+
+	ret = batadv_tt_global_init(bat_priv);
+	if (ret < 0)
+		return ret;
+
+	batadv_tvlv_handler_register(bat_priv, batadv_tt_tvlv_ogm_handler_v1,
+				     NULL, BATADV_TVLV_TT, 1, BATADV_NO_FLAGS);
+
+	INIT_DELAYED_WORK(&bat_priv->tt.work, batadv_tt_purge);
+	queue_delayed_work(batadv_event_workqueue, &bat_priv->tt.work,
+			   msecs_to_jiffies(BATADV_TT_WORK_PERIOD));
+
+	return 1;
+}
diff --git a/net/batman-adv/translation-table.h b/net/batman-adv/translation-table.h
index 659a3bb759ce..a709249cf9d0 100644
--- a/net/batman-adv/translation-table.h
+++ b/net/batman-adv/translation-table.h
@@ -50,13 +50,7 @@ void batadv_handle_tt_response(struct batadv_priv *bat_priv,
 			       struct batadv_tt_query_packet *tt_response);
 bool batadv_is_ap_isolated(struct batadv_priv *bat_priv, uint8_t *src,
 			   uint8_t *dst);
-void batadv_tt_update_orig(struct batadv_priv *bat_priv,
-			   struct batadv_orig_node *orig_node,
-			   const unsigned char *tt_buff, uint8_t tt_num_changes,
-			   uint8_t ttvn, uint16_t tt_crc);
-int batadv_tt_append_diff(struct batadv_priv *bat_priv,
-			  unsigned char **packet_buff, int *packet_buff_len,
-			  int packet_min_len);
+void batadv_tt_local_commit_changes(struct batadv_priv *bat_priv);
 bool batadv_tt_global_client_is_roaming(struct batadv_priv *bat_priv,
 					uint8_t *addr);
 bool batadv_tt_local_client_is_roaming(struct batadv_priv *bat_priv,
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index fa5cb0d99ed5..bdabbc21eb41 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -772,7 +772,7 @@ struct batadv_tt_orig_list_entry {
  */
 struct batadv_tt_change_node {
 	struct list_head list;
-	struct batadv_tt_change change;
+	struct batadv_tvlv_tt_change change;
 };
 
 /**
-- 
cgit 


From 335fbe0f5d2501b7dd815806aef6fd9bad784eb1 Mon Sep 17 00:00:00 2001
From: Marek Lindner <lindner_marek@yahoo.de>
Date: Tue, 23 Apr 2013 21:40:02 +0800
Subject: batman-adv: tvlv - convert tt query packet to use tvlv unicast
 packets

Instead of generating TT specific packets the TVLV unicast API is used
to send translation table data.

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/main.c              |   2 -
 net/batman-adv/packet.h            |  33 ---
 net/batman-adv/routing.c           |  78 ------
 net/batman-adv/translation-table.c | 502 +++++++++++++++++++++----------------
 net/batman-adv/translation-table.h |   5 -
 5 files changed, 286 insertions(+), 334 deletions(-)

diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index cb9a446baba8..39d9b44fba44 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -414,8 +414,6 @@ static void batadv_recv_handler_init(void)
 	batadv_rx_handler[BATADV_BCAST] = batadv_recv_bcast_packet;
 	/* vis packet */
 	batadv_rx_handler[BATADV_VIS] = batadv_recv_vis_packet;
-	/* Translation table query (request or response) */
-	batadv_rx_handler[BATADV_TT_QUERY] = batadv_recv_tt_query;
 	/* Roaming advertisement */
 	batadv_rx_handler[BATADV_ROAM_ADV] = batadv_recv_roam_adv;
 	/* unicast tvlv packet */
diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index cd59fcc9b79a..a602efc76750 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -31,7 +31,6 @@ enum batadv_packettype {
 	BATADV_BCAST		= 0x04,
 	BATADV_VIS		= 0x05,
 	BATADV_UNICAST_FRAG	= 0x06,
-	BATADV_TT_QUERY		= 0x07,
 	BATADV_ROAM_ADV		= 0x08,
 	BATADV_UNICAST_4ADDR	= 0x09,
 	BATADV_CODED		= 0x0a,
@@ -83,9 +82,6 @@ enum batadv_unicast_frag_flags {
 	BATADV_UNI_FRAG_LARGETAIL = BIT(1),
 };
 
-/* TT_QUERY subtypes */
-#define BATADV_TT_QUERY_TYPE_MASK 0x3
-
 /* tt data subtypes */
 #define BATADV_TT_DATA_TYPE_MASK 0x0F
 
@@ -271,30 +267,6 @@ struct batadv_vis_packet {
 	uint8_t  sender_orig[ETH_ALEN]; /* who sent or forwarded this packet */
 };
 
-struct batadv_tt_query_packet {
-	struct batadv_header header;
-	/* the flag field is a combination of:
-	 * - TT_REQUEST or TT_RESPONSE
-	 * - TT_FULL_TABLE
-	 */
-	uint8_t  flags;
-	uint8_t  dst[ETH_ALEN];
-	uint8_t  src[ETH_ALEN];
-	/* the ttvn field is:
-	 * if TT_REQUEST: ttvn that triggered the
-	 *		  request
-	 * if TT_RESPONSE: new ttvn for the src
-	 *		   orig_node
-	 */
-	uint8_t  ttvn;
-	/* tt_data field is:
-	 * if TT_REQUEST: crc associated with the
-	 *		  ttvn
-	 * if TT_RESPONSE: table_size
-	 */
-	__be16 tt_data;
-} __packed;
-
 struct batadv_roam_adv_packet {
 	struct batadv_header header;
 	uint8_t  reserved;
@@ -303,11 +275,6 @@ struct batadv_roam_adv_packet {
 	uint8_t  client[ETH_ALEN];
 } __packed;
 
-struct batadv_tt_change {
-	uint8_t flags;
-	uint8_t addr[ETH_ALEN];
-} __packed;
-
 /**
  * struct batadv_coded_packet - network coded packet
  * @header: common batman packet header and ttl of first included packet
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 9640656d4e51..d12858110f91 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -557,84 +557,6 @@ static int batadv_check_unicast_packet(struct batadv_priv *bat_priv,
 	return 0;
 }
 
-int batadv_recv_tt_query(struct sk_buff *skb, struct batadv_hard_iface *recv_if)
-{
-	struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
-	struct batadv_tt_query_packet *tt_query;
-	uint16_t tt_size;
-	int hdr_size = sizeof(*tt_query);
-	char tt_flag;
-	size_t packet_size;
-
-	if (batadv_check_unicast_packet(bat_priv, skb, hdr_size) < 0)
-		return NET_RX_DROP;
-
-	/* I could need to modify it */
-	if (skb_cow(skb, sizeof(struct batadv_tt_query_packet)) < 0)
-		goto out;
-
-	tt_query = (struct batadv_tt_query_packet *)skb->data;
-
-	switch (tt_query->flags & BATADV_TT_QUERY_TYPE_MASK) {
-	case BATADV_TT_REQUEST:
-		batadv_inc_counter(bat_priv, BATADV_CNT_TT_REQUEST_RX);
-
-		/* If we cannot provide an answer the tt_request is
-		 * forwarded
-		 */
-		if (!batadv_send_tt_response(bat_priv, tt_query)) {
-			if (tt_query->flags & BATADV_TT_FULL_TABLE)
-				tt_flag = 'F';
-			else
-				tt_flag = '.';
-
-			batadv_dbg(BATADV_DBG_TT, bat_priv,
-				   "Routing TT_REQUEST to %pM [%c]\n",
-				   tt_query->dst,
-				   tt_flag);
-			return batadv_route_unicast_packet(skb, recv_if);
-		}
-		break;
-	case BATADV_TT_RESPONSE:
-		batadv_inc_counter(bat_priv, BATADV_CNT_TT_RESPONSE_RX);
-
-		if (batadv_is_my_mac(bat_priv, tt_query->dst)) {
-			/* packet needs to be linearized to access the TT
-			 * changes
-			 */
-			if (skb_linearize(skb) < 0)
-				goto out;
-			/* skb_linearize() possibly changed skb->data */
-			tt_query = (struct batadv_tt_query_packet *)skb->data;
-
-			tt_size = batadv_tt_len(ntohs(tt_query->tt_data));
-
-			/* Ensure we have all the claimed data */
-			packet_size = sizeof(struct batadv_tt_query_packet);
-			packet_size += tt_size;
-			if (unlikely(skb_headlen(skb) < packet_size))
-				goto out;
-
-			batadv_handle_tt_response(bat_priv, tt_query);
-		} else {
-			if (tt_query->flags & BATADV_TT_FULL_TABLE)
-				tt_flag =  'F';
-			else
-				tt_flag = '.';
-			batadv_dbg(BATADV_DBG_TT, bat_priv,
-				   "Routing TT_RESPONSE to %pM [%c]\n",
-				   tt_query->dst,
-				   tt_flag);
-			return batadv_route_unicast_packet(skb, recv_if);
-		}
-		break;
-	}
-
-out:
-	/* returning NET_RX_DROP will make the caller function kfree the skb */
-	return NET_RX_DROP;
-}
-
 int batadv_recv_roam_adv(struct sk_buff *skb, struct batadv_hard_iface *recv_if)
 {
 	struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 3fac67ffd524..22fce8a4793e 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -229,9 +229,15 @@ unlock:
 		atomic_inc(&bat_priv->tt.local_changes);
 }
 
-int batadv_tt_len(int changes_num)
+/**
+ * batadv_tt_len - compute length in bytes of given number of tt changes
+ * @changes_num: number of tt changes
+ *
+ * Returns computed length in bytes.
+ */
+static int batadv_tt_len(int changes_num)
 {
-	return changes_num * sizeof(struct batadv_tt_change);
+	return changes_num * sizeof(struct batadv_tvlv_tt_change);
 }
 
 static int batadv_tt_local_init(struct batadv_priv *bat_priv)
@@ -1555,9 +1561,14 @@ unlock:
 	return tt_req_node;
 }
 
-/* data_ptr is useless here, but has to be kept to respect the prototype */
-static int batadv_tt_local_valid_entry(const void *entry_ptr,
-				       const void *data_ptr)
+/**
+ * batadv_tt_local_valid - verify that given tt entry is a valid one
+ * @entry_ptr: to be checked local tt entry
+ * @data_ptr: not used but definition required to satisfy the callback prototype
+ *
+ * Returns 1 if the entry is a valid, 0 otherwise.
+ */
+static int batadv_tt_local_valid(const void *entry_ptr, const void *data_ptr)
 {
 	const struct batadv_tt_common_entry *tt_common_entry = entry_ptr;
 
@@ -1584,41 +1595,45 @@ static int batadv_tt_global_valid(const void *entry_ptr,
 	return batadv_tt_global_entry_has_orig(tt_global_entry, orig_node);
 }
 
-static struct sk_buff *
-batadv_tt_response_fill_table(uint16_t tt_len, uint8_t ttvn,
-			      struct batadv_hashtable *hash,
-			      struct batadv_priv *bat_priv,
-			      int (*valid_cb)(const void *, const void *),
-			      void *cb_data)
+/**
+ * batadv_tt_tvlv_generate - creates tvlv tt data buffer to fill it with the
+ *  tt entries from the specified tt hash
+ * @bat_priv: the bat priv with all the soft interface information
+ * @hash: hash table containing the tt entries
+ * @tt_len: expected tvlv tt data buffer length in number of bytes
+ * @valid_cb: function to filter tt change entries
+ * @cb_data: data passed to the filter function as argument
+ *
+ * Returns pointer to allocated tvlv tt data buffer if operation was
+ * successful or NULL otherwise.
+ */
+static struct batadv_tvlv_tt_data *
+batadv_tt_tvlv_generate(struct batadv_priv *bat_priv,
+			struct batadv_hashtable *hash, uint16_t tt_len,
+			int (*valid_cb)(const void *, const void *),
+			void *cb_data)
 {
 	struct batadv_tt_common_entry *tt_common_entry;
-	struct batadv_tt_query_packet *tt_response;
-	struct batadv_tt_change *tt_change;
+	struct batadv_tvlv_tt_data *tvlv_tt_data = NULL;
+	struct batadv_tvlv_tt_change *tt_change;
 	struct hlist_head *head;
-	struct sk_buff *skb = NULL;
-	uint16_t tt_tot, tt_count;
-	ssize_t tt_query_size = sizeof(struct batadv_tt_query_packet);
+	uint16_t tt_tot, tt_num_entries = 0;
+	ssize_t tvlv_tt_size = sizeof(struct batadv_tvlv_tt_data);
 	uint32_t i;
-	size_t len;
 
-	if (tt_query_size + tt_len > bat_priv->soft_iface->mtu) {
-		tt_len = bat_priv->soft_iface->mtu - tt_query_size;
-		tt_len -= tt_len % sizeof(struct batadv_tt_change);
+	if (tvlv_tt_size + tt_len > bat_priv->soft_iface->mtu) {
+		tt_len = bat_priv->soft_iface->mtu - tvlv_tt_size;
+		tt_len -= tt_len % sizeof(struct batadv_tvlv_tt_change);
 	}
-	tt_tot = tt_len / sizeof(struct batadv_tt_change);
 
-	len = tt_query_size + tt_len;
-	skb = netdev_alloc_skb_ip_align(NULL, len + ETH_HLEN);
-	if (!skb)
-		goto out;
+	tt_tot = tt_len / sizeof(struct batadv_tvlv_tt_change);
 
-	skb->priority = TC_PRIO_CONTROL;
-	skb_reserve(skb, ETH_HLEN);
-	tt_response = (struct batadv_tt_query_packet *)skb_put(skb, len);
-	tt_response->ttvn = ttvn;
+	tvlv_tt_data = kzalloc(sizeof(*tvlv_tt_data) + tt_len,
+			       GFP_ATOMIC);
+	if (!tvlv_tt_data)
+		goto out;
 
-	tt_change = (struct batadv_tt_change *)(skb->data + tt_query_size);
-	tt_count = 0;
+	tt_change = (struct batadv_tvlv_tt_change *)(tvlv_tt_data + 1);
 
 	rcu_read_lock();
 	for (i = 0; i < hash->size; i++) {
@@ -1626,7 +1641,7 @@ batadv_tt_response_fill_table(uint16_t tt_len, uint8_t ttvn,
 
 		hlist_for_each_entry_rcu(tt_common_entry,
 					 head, hash_entry) {
-			if (tt_count == tt_tot)
+			if (tt_tot == tt_num_entries)
 				break;
 
 			if ((valid_cb) && (!valid_cb(tt_common_entry, cb_data)))
@@ -1635,20 +1650,16 @@ batadv_tt_response_fill_table(uint16_t tt_len, uint8_t ttvn,
 			memcpy(tt_change->addr, tt_common_entry->addr,
 			       ETH_ALEN);
 			tt_change->flags = tt_common_entry->flags;
+			tt_change->reserved = 0;
 
-			tt_count++;
+			tt_num_entries++;
 			tt_change++;
 		}
 	}
 	rcu_read_unlock();
 
-	/* store in the message the number of entries we have successfully
-	 * copied
-	 */
-	tt_response->tt_data = htons(tt_count);
-
 out:
-	return skb;
+	return tvlv_tt_data;
 }
 
 static int batadv_send_tt_request(struct batadv_priv *bat_priv,
@@ -1656,12 +1667,10 @@ static int batadv_send_tt_request(struct batadv_priv *bat_priv,
 				  uint8_t ttvn, uint16_t tt_crc,
 				  bool full_table)
 {
-	struct sk_buff *skb = NULL;
-	struct batadv_tt_query_packet *tt_request;
+	struct batadv_tvlv_tt_data *tvlv_tt_data = NULL;
 	struct batadv_hard_iface *primary_if;
 	struct batadv_tt_req_node *tt_req_node = NULL;
-	int ret = 1;
-	size_t tt_req_len;
+	bool ret = false;
 
 	primary_if = batadv_primary_if_get_selected(bat_priv);
 	if (!primary_if)
@@ -1674,157 +1683,136 @@ static int batadv_send_tt_request(struct batadv_priv *bat_priv,
 	if (!tt_req_node)
 		goto out;
 
-	skb = netdev_alloc_skb_ip_align(NULL, sizeof(*tt_request) + ETH_HLEN);
-	if (!skb)
+	tvlv_tt_data = kzalloc(sizeof(*tvlv_tt_data), GFP_ATOMIC);
+	if (!tvlv_tt_data)
 		goto out;
 
-	skb->priority = TC_PRIO_CONTROL;
-	skb_reserve(skb, ETH_HLEN);
-
-	tt_req_len = sizeof(*tt_request);
-	tt_request = (struct batadv_tt_query_packet *)skb_put(skb, tt_req_len);
-
-	tt_request->header.packet_type = BATADV_TT_QUERY;
-	tt_request->header.version = BATADV_COMPAT_VERSION;
-	memcpy(tt_request->src, primary_if->net_dev->dev_addr, ETH_ALEN);
-	memcpy(tt_request->dst, dst_orig_node->orig, ETH_ALEN);
-	tt_request->header.ttl = BATADV_TTL;
-	tt_request->ttvn = ttvn;
-	tt_request->tt_data = htons(tt_crc);
-	tt_request->flags = BATADV_TT_REQUEST;
+	tvlv_tt_data->flags = BATADV_TT_REQUEST;
+	tvlv_tt_data->ttvn = ttvn;
+	tvlv_tt_data->crc = htons(tt_crc);
 
 	if (full_table)
-		tt_request->flags |= BATADV_TT_FULL_TABLE;
+		tvlv_tt_data->flags |= BATADV_TT_FULL_TABLE;
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv, "Sending TT_REQUEST to %pM [%c]\n",
-		   dst_orig_node->orig, (full_table ? 'F' : '.'));
+		   dst_orig_node->orig, full_table ? 'F' : '.');
 
 	batadv_inc_counter(bat_priv, BATADV_CNT_TT_REQUEST_TX);
-
-	if (batadv_send_skb_to_orig(skb, dst_orig_node, NULL) != NET_XMIT_DROP)
-		ret = 0;
+	batadv_tvlv_unicast_send(bat_priv, primary_if->net_dev->dev_addr,
+				 dst_orig_node->orig, BATADV_TVLV_TT, 1,
+				 tvlv_tt_data, sizeof(*tvlv_tt_data));
+	ret = true;
 
 out:
 	if (primary_if)
 		batadv_hardif_free_ref(primary_if);
-	if (ret)
-		kfree_skb(skb);
 	if (ret && tt_req_node) {
 		spin_lock_bh(&bat_priv->tt.req_list_lock);
 		list_del(&tt_req_node->list);
 		spin_unlock_bh(&bat_priv->tt.req_list_lock);
 		kfree(tt_req_node);
 	}
+	kfree(tvlv_tt_data);
 	return ret;
 }
 
-static bool
-batadv_send_other_tt_response(struct batadv_priv *bat_priv,
-			      struct batadv_tt_query_packet *tt_request)
+/**
+ * batadv_send_other_tt_response - send reply to tt request concerning another
+ *  node's translation table
+ * @bat_priv: the bat priv with all the soft interface information
+ * @tt_data: tt data containing the tt request information
+ * @req_src: mac address of tt request sender
+ * @req_dst: mac address of tt request recipient
+ *
+ * Returns true if tt request reply was sent, false otherwise.
+ */
+static bool batadv_send_other_tt_response(struct batadv_priv *bat_priv,
+					  struct batadv_tvlv_tt_data *tt_data,
+					  uint8_t *req_src, uint8_t *req_dst)
 {
 	struct batadv_orig_node *req_dst_orig_node;
 	struct batadv_orig_node *res_dst_orig_node = NULL;
-	uint8_t orig_ttvn, req_ttvn, ttvn;
-	int res, ret = false;
-	unsigned char *tt_buff;
-	bool full_table;
-	uint16_t tt_len, tt_tot;
-	struct sk_buff *skb = NULL;
-	struct batadv_tt_query_packet *tt_response;
-	uint8_t *packet_pos;
-	size_t len;
+	struct batadv_tvlv_tt_data *tvlv_tt_data = NULL;
+	uint8_t orig_ttvn, req_ttvn;
+	uint16_t tt_len;
+	bool ret = false, full_table;
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
 		   "Received TT_REQUEST from %pM for ttvn: %u (%pM) [%c]\n",
-		   tt_request->src, tt_request->ttvn, tt_request->dst,
-		   (tt_request->flags & BATADV_TT_FULL_TABLE ? 'F' : '.'));
+		   req_src, tt_data->ttvn, req_dst,
+		   (tt_data->flags & BATADV_TT_FULL_TABLE ? 'F' : '.'));
 
 	/* Let's get the orig node of the REAL destination */
-	req_dst_orig_node = batadv_orig_hash_find(bat_priv, tt_request->dst);
+	req_dst_orig_node = batadv_orig_hash_find(bat_priv, req_dst);
 	if (!req_dst_orig_node)
 		goto out;
 
-	res_dst_orig_node = batadv_orig_hash_find(bat_priv, tt_request->src);
+	res_dst_orig_node = batadv_orig_hash_find(bat_priv, req_src);
 	if (!res_dst_orig_node)
 		goto out;
 
 	orig_ttvn = (uint8_t)atomic_read(&req_dst_orig_node->last_ttvn);
-	req_ttvn = tt_request->ttvn;
+	req_ttvn = tt_data->ttvn;
 
-	/* I don't have the requested data */
+	/* this node doesn't have the requested data */
 	if (orig_ttvn != req_ttvn ||
-	    tt_request->tt_data != htons(req_dst_orig_node->tt_crc))
+	    tt_data->crc != htons(req_dst_orig_node->tt_crc))
 		goto out;
 
 	/* If the full table has been explicitly requested */
-	if (tt_request->flags & BATADV_TT_FULL_TABLE ||
+	if (tt_data->flags & BATADV_TT_FULL_TABLE ||
 	    !req_dst_orig_node->tt_buff)
 		full_table = true;
 	else
 		full_table = false;
 
-	/* In this version, fragmentation is not implemented, then
-	 * I'll send only one packet with as much TT entries as I can
+	/* TT fragmentation hasn't been implemented yet, so send as many
+	 * TT entries fit a single packet as possible only
 	 */
 	if (!full_table) {
 		spin_lock_bh(&req_dst_orig_node->tt_buff_lock);
 		tt_len = req_dst_orig_node->tt_buff_len;
-		tt_tot = tt_len / sizeof(struct batadv_tt_change);
 
-		len = sizeof(*tt_response) + tt_len;
-		skb = netdev_alloc_skb_ip_align(NULL, len + ETH_HLEN);
-		if (!skb)
+		tvlv_tt_data = kzalloc(sizeof(*tvlv_tt_data) + tt_len,
+				       GFP_ATOMIC);
+		if (!tvlv_tt_data)
 			goto unlock;
 
-		skb->priority = TC_PRIO_CONTROL;
-		skb_reserve(skb, ETH_HLEN);
-		packet_pos = skb_put(skb, len);
-		tt_response = (struct batadv_tt_query_packet *)packet_pos;
-		tt_response->ttvn = req_ttvn;
-		tt_response->tt_data = htons(tt_tot);
-
-		tt_buff = skb->data + sizeof(*tt_response);
 		/* Copy the last orig_node's OGM buffer */
-		memcpy(tt_buff, req_dst_orig_node->tt_buff,
+		memcpy(tvlv_tt_data + 1, req_dst_orig_node->tt_buff,
 		       req_dst_orig_node->tt_buff_len);
-
 		spin_unlock_bh(&req_dst_orig_node->tt_buff_lock);
 	} else {
 		tt_len = (uint16_t)atomic_read(&req_dst_orig_node->tt_size);
-		tt_len *= sizeof(struct batadv_tt_change);
-		ttvn = (uint8_t)atomic_read(&req_dst_orig_node->last_ttvn);
-
-		skb = batadv_tt_response_fill_table(tt_len, ttvn,
-						    bat_priv->tt.global_hash,
-						    bat_priv,
-						    batadv_tt_global_valid,
-						    req_dst_orig_node);
-		if (!skb)
+		tt_len = batadv_tt_len(tt_len);
+
+		tvlv_tt_data = batadv_tt_tvlv_generate(bat_priv,
+						       bat_priv->tt.global_hash,
+						       tt_len,
+						       batadv_tt_global_valid,
+						       req_dst_orig_node);
+		if (!tvlv_tt_data)
 			goto out;
-
-		tt_response = (struct batadv_tt_query_packet *)skb->data;
 	}
 
-	tt_response->header.packet_type = BATADV_TT_QUERY;
-	tt_response->header.version = BATADV_COMPAT_VERSION;
-	tt_response->header.ttl = BATADV_TTL;
-	memcpy(tt_response->src, req_dst_orig_node->orig, ETH_ALEN);
-	memcpy(tt_response->dst, tt_request->src, ETH_ALEN);
-	tt_response->flags = BATADV_TT_RESPONSE;
+	tvlv_tt_data->flags = BATADV_TT_RESPONSE;
+	tvlv_tt_data->ttvn = req_ttvn;
 
 	if (full_table)
-		tt_response->flags |= BATADV_TT_FULL_TABLE;
+		tvlv_tt_data->flags |= BATADV_TT_FULL_TABLE;
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
-		   "Sending TT_RESPONSE %pM for %pM (ttvn: %u)\n",
-		   res_dst_orig_node->orig, req_dst_orig_node->orig, req_ttvn);
+		   "Sending TT_RESPONSE %pM for %pM [%c] (ttvn: %u)\n",
+		   res_dst_orig_node->orig, req_dst_orig_node->orig,
+		   full_table ? 'F' : '.', req_ttvn);
 
 	batadv_inc_counter(bat_priv, BATADV_CNT_TT_RESPONSE_TX);
 
-	res = batadv_send_skb_to_orig(skb, res_dst_orig_node, NULL);
-	if (res != NET_XMIT_DROP)
-		ret = true;
+	batadv_tvlv_unicast_send(bat_priv, req_dst_orig_node->orig,
+				 req_src, BATADV_TVLV_TT, 1,
+				 tvlv_tt_data, sizeof(*tvlv_tt_data) + tt_len);
 
+	ret = true;
 	goto out;
 
 unlock:
@@ -1835,37 +1823,40 @@ out:
 		batadv_orig_node_free_ref(res_dst_orig_node);
 	if (req_dst_orig_node)
 		batadv_orig_node_free_ref(req_dst_orig_node);
-	if (!ret)
-		kfree_skb(skb);
+	kfree(tvlv_tt_data);
 	return ret;
 }
 
-static bool
-batadv_send_my_tt_response(struct batadv_priv *bat_priv,
-			   struct batadv_tt_query_packet *tt_request)
+/**
+ * batadv_send_my_tt_response - send reply to tt request concerning this node's
+ *  translation table
+ * @bat_priv: the bat priv with all the soft interface information
+ * @tt_data: tt data containing the tt request information
+ * @req_src: mac address of tt request sender
+ *
+ * Returns true if tt request reply was sent, false otherwise.
+ */
+static bool batadv_send_my_tt_response(struct batadv_priv *bat_priv,
+				       struct batadv_tvlv_tt_data *tt_data,
+				       uint8_t *req_src)
 {
+	struct batadv_tvlv_tt_data *tvlv_tt_data = NULL;
 	struct batadv_orig_node *orig_node;
 	struct batadv_hard_iface *primary_if = NULL;
-	uint8_t my_ttvn, req_ttvn, ttvn;
-	int ret = false;
-	unsigned char *tt_buff;
+	uint8_t my_ttvn, req_ttvn;
 	bool full_table;
-	uint16_t tt_len, tt_tot;
-	struct sk_buff *skb = NULL;
-	struct batadv_tt_query_packet *tt_response;
-	uint8_t *packet_pos;
-	size_t len;
+	uint16_t tt_len;
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
 		   "Received TT_REQUEST from %pM for ttvn: %u (me) [%c]\n",
-		   tt_request->src, tt_request->ttvn,
-		   (tt_request->flags & BATADV_TT_FULL_TABLE ? 'F' : '.'));
+		   req_src, tt_data->ttvn,
+		   (tt_data->flags & BATADV_TT_FULL_TABLE ? 'F' : '.'));
 
 
 	my_ttvn = (uint8_t)atomic_read(&bat_priv->tt.vn);
-	req_ttvn = tt_request->ttvn;
+	req_ttvn = tt_data->ttvn;
 
-	orig_node = batadv_orig_hash_find(bat_priv, tt_request->src);
+	orig_node = batadv_orig_hash_find(bat_priv, req_src);
 	if (!orig_node)
 		goto out;
 
@@ -1876,71 +1867,58 @@ batadv_send_my_tt_response(struct batadv_priv *bat_priv,
 	/* If the full table has been explicitly requested or the gap
 	 * is too big send the whole local translation table
 	 */
-	if (tt_request->flags & BATADV_TT_FULL_TABLE || my_ttvn != req_ttvn ||
+	if (tt_data->flags & BATADV_TT_FULL_TABLE || my_ttvn != req_ttvn ||
 	    !bat_priv->tt.last_changeset)
 		full_table = true;
 	else
 		full_table = false;
 
-	/* In this version, fragmentation is not implemented, then
-	 * I'll send only one packet with as much TT entries as I can
+	/* TT fragmentation hasn't been implemented yet, so send as many
+	 * TT entries fit a single packet as possible only
 	 */
 	if (!full_table) {
 		spin_lock_bh(&bat_priv->tt.last_changeset_lock);
 		tt_len = bat_priv->tt.last_changeset_len;
-		tt_tot = tt_len / sizeof(struct batadv_tt_change);
 
-		len = sizeof(*tt_response) + tt_len;
-		skb = netdev_alloc_skb_ip_align(NULL, len + ETH_HLEN);
-		if (!skb)
+		tvlv_tt_data = kzalloc(sizeof(*tvlv_tt_data) + tt_len,
+				       GFP_ATOMIC);
+		if (!tvlv_tt_data)
 			goto unlock;
 
-		skb->priority = TC_PRIO_CONTROL;
-		skb_reserve(skb, ETH_HLEN);
-		packet_pos = skb_put(skb, len);
-		tt_response = (struct batadv_tt_query_packet *)packet_pos;
-		tt_response->ttvn = req_ttvn;
-		tt_response->tt_data = htons(tt_tot);
-
-		tt_buff = skb->data + sizeof(*tt_response);
-		memcpy(tt_buff, bat_priv->tt.last_changeset,
+		/* Copy the last orig_node's OGM buffer */
+		memcpy(tvlv_tt_data + 1, bat_priv->tt.last_changeset,
 		       bat_priv->tt.last_changeset_len);
 		spin_unlock_bh(&bat_priv->tt.last_changeset_lock);
 	} else {
 		tt_len = (uint16_t)atomic_read(&bat_priv->tt.local_entry_num);
-		tt_len *= sizeof(struct batadv_tt_change);
-		ttvn = (uint8_t)atomic_read(&bat_priv->tt.vn);
-
-		skb = batadv_tt_response_fill_table(tt_len, ttvn,
-						    bat_priv->tt.local_hash,
-						    bat_priv,
-						    batadv_tt_local_valid_entry,
-						    NULL);
-		if (!skb)
+		tt_len = batadv_tt_len(tt_len);
+		req_ttvn = (uint8_t)atomic_read(&bat_priv->tt.vn);
+
+		tvlv_tt_data = batadv_tt_tvlv_generate(bat_priv,
+						       bat_priv->tt.local_hash,
+						       tt_len,
+						       batadv_tt_local_valid,
+						       NULL);
+		if (!tvlv_tt_data)
 			goto out;
-
-		tt_response = (struct batadv_tt_query_packet *)skb->data;
 	}
 
-	tt_response->header.packet_type = BATADV_TT_QUERY;
-	tt_response->header.version = BATADV_COMPAT_VERSION;
-	tt_response->header.ttl = BATADV_TTL;
-	memcpy(tt_response->src, primary_if->net_dev->dev_addr, ETH_ALEN);
-	memcpy(tt_response->dst, tt_request->src, ETH_ALEN);
-	tt_response->flags = BATADV_TT_RESPONSE;
+	tvlv_tt_data->flags = BATADV_TT_RESPONSE;
+	tvlv_tt_data->ttvn = req_ttvn;
 
 	if (full_table)
-		tt_response->flags |= BATADV_TT_FULL_TABLE;
+		tvlv_tt_data->flags |= BATADV_TT_FULL_TABLE;
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
-		   "Sending TT_RESPONSE to %pM [%c]\n",
-		   orig_node->orig,
-		   (tt_response->flags & BATADV_TT_FULL_TABLE ? 'F' : '.'));
+		   "Sending TT_RESPONSE to %pM [%c] (ttvn: %u)\n",
+		   orig_node->orig, full_table ? 'F' : '.', req_ttvn);
 
 	batadv_inc_counter(bat_priv, BATADV_CNT_TT_RESPONSE_TX);
 
-	if (batadv_send_skb_to_orig(skb, orig_node, NULL) != NET_XMIT_DROP)
-		ret = true;
+	batadv_tvlv_unicast_send(bat_priv, primary_if->net_dev->dev_addr,
+				 req_src, BATADV_TVLV_TT, 1,
+				 tvlv_tt_data, sizeof(*tvlv_tt_data) + tt_len);
+
 	goto out;
 
 unlock:
@@ -1950,29 +1928,39 @@ out:
 		batadv_orig_node_free_ref(orig_node);
 	if (primary_if)
 		batadv_hardif_free_ref(primary_if);
-	if (!ret)
-		kfree_skb(skb);
-	/* This packet was for me, so it doesn't need to be re-routed */
+	kfree(tvlv_tt_data);
+	/* The packet was for this host, so it doesn't need to be re-routed */
 	return true;
 }
 
-bool batadv_send_tt_response(struct batadv_priv *bat_priv,
-			     struct batadv_tt_query_packet *tt_request)
+/**
+ * batadv_send_tt_response - send reply to tt request
+ * @bat_priv: the bat priv with all the soft interface information
+ * @tt_data: tt data containing the tt request information
+ * @req_src: mac address of tt request sender
+ * @req_dst: mac address of tt request recipient
+ *
+ * Returns true if tt request reply was sent, false otherwise.
+ */
+static bool batadv_send_tt_response(struct batadv_priv *bat_priv,
+				    struct batadv_tvlv_tt_data *tt_data,
+				    uint8_t *req_src, uint8_t *req_dst)
 {
-	if (batadv_is_my_mac(bat_priv, tt_request->dst)) {
+	if (batadv_is_my_mac(bat_priv, req_dst)) {
 		/* don't answer backbone gws! */
-		if (batadv_bla_is_backbone_gw_orig(bat_priv, tt_request->src))
+		if (batadv_bla_is_backbone_gw_orig(bat_priv, req_src))
 			return true;
 
-		return batadv_send_my_tt_response(bat_priv, tt_request);
+		return batadv_send_my_tt_response(bat_priv, tt_data, req_src);
 	} else {
-		return batadv_send_other_tt_response(bat_priv, tt_request);
+		return batadv_send_other_tt_response(bat_priv, tt_data,
+						     req_src, req_dst);
 	}
 }
 
 static void _batadv_tt_update_changes(struct batadv_priv *bat_priv,
 				      struct batadv_orig_node *orig_node,
-				      struct batadv_tt_change *tt_change,
+				      struct batadv_tvlv_tt_change *tt_change,
 				      uint16_t tt_num_changes, uint8_t ttvn)
 {
 	int i;
@@ -2002,11 +1990,12 @@ static void _batadv_tt_update_changes(struct batadv_priv *bat_priv,
 }
 
 static void batadv_tt_fill_gtable(struct batadv_priv *bat_priv,
-				  struct batadv_tt_query_packet *tt_response)
+				  struct batadv_tvlv_tt_data *tt_data,
+				  uint8_t *resp_src, uint16_t num_entries)
 {
 	struct batadv_orig_node *orig_node;
 
-	orig_node = batadv_orig_hash_find(bat_priv, tt_response->src);
+	orig_node = batadv_orig_hash_find(bat_priv, resp_src);
 	if (!orig_node)
 		goto out;
 
@@ -2014,9 +2003,8 @@ static void batadv_tt_fill_gtable(struct batadv_priv *bat_priv,
 	batadv_tt_global_del_orig(bat_priv, orig_node, "Received full table");
 
 	_batadv_tt_update_changes(bat_priv, orig_node,
-				  (struct batadv_tt_change *)(tt_response + 1),
-				  ntohs(tt_response->tt_data),
-				  tt_response->ttvn);
+				  (struct batadv_tvlv_tt_change *)(tt_data + 1),
+				  num_entries, tt_data->ttvn);
 
 	spin_lock_bh(&orig_node->tt_buff_lock);
 	kfree(orig_node->tt_buff);
@@ -2024,7 +2012,7 @@ static void batadv_tt_fill_gtable(struct batadv_priv *bat_priv,
 	orig_node->tt_buff = NULL;
 	spin_unlock_bh(&orig_node->tt_buff_lock);
 
-	atomic_set(&orig_node->last_ttvn, tt_response->ttvn);
+	atomic_set(&orig_node->last_ttvn, tt_data->ttvn);
 
 out:
 	if (orig_node)
@@ -2034,7 +2022,7 @@ out:
 static void batadv_tt_update_changes(struct batadv_priv *bat_priv,
 				     struct batadv_orig_node *orig_node,
 				     uint16_t tt_num_changes, uint8_t ttvn,
-				     struct batadv_tt_change *tt_change)
+				     struct batadv_tvlv_tt_change *tt_change)
 {
 	_batadv_tt_update_changes(bat_priv, orig_node, tt_change,
 				  tt_num_changes, ttvn);
@@ -2065,40 +2053,46 @@ out:
 	return ret;
 }
 
-void batadv_handle_tt_response(struct batadv_priv *bat_priv,
-			       struct batadv_tt_query_packet *tt_response)
+/**
+ * batadv_handle_tt_response - process incoming tt reply
+ * @bat_priv: the bat priv with all the soft interface information
+ * @tt_data: tt data containing the tt request information
+ * @resp_src: mac address of tt reply sender
+ * @num_entries: number of tt change entries appended to the tt data
+ */
+static void batadv_handle_tt_response(struct batadv_priv *bat_priv,
+				      struct batadv_tvlv_tt_data *tt_data,
+				      uint8_t *resp_src, uint16_t num_entries)
 {
 	struct batadv_tt_req_node *node, *safe;
 	struct batadv_orig_node *orig_node = NULL;
-	struct batadv_tt_change *tt_change;
+	struct batadv_tvlv_tt_change *tt_change;
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
 		   "Received TT_RESPONSE from %pM for ttvn %d t_size: %d [%c]\n",
-		   tt_response->src, tt_response->ttvn,
-		   ntohs(tt_response->tt_data),
-		   (tt_response->flags & BATADV_TT_FULL_TABLE ? 'F' : '.'));
+		   resp_src, tt_data->ttvn, num_entries,
+		   (tt_data->flags & BATADV_TT_FULL_TABLE ? 'F' : '.'));
 
 	/* we should have never asked a backbone gw */
-	if (batadv_bla_is_backbone_gw_orig(bat_priv, tt_response->src))
+	if (batadv_bla_is_backbone_gw_orig(bat_priv, resp_src))
 		goto out;
 
-	orig_node = batadv_orig_hash_find(bat_priv, tt_response->src);
+	orig_node = batadv_orig_hash_find(bat_priv, resp_src);
 	if (!orig_node)
 		goto out;
 
-	if (tt_response->flags & BATADV_TT_FULL_TABLE) {
-		batadv_tt_fill_gtable(bat_priv, tt_response);
+	if (tt_data->flags & BATADV_TT_FULL_TABLE) {
+		batadv_tt_fill_gtable(bat_priv, tt_data, resp_src, num_entries);
 	} else {
-		tt_change = (struct batadv_tt_change *)(tt_response + 1);
-		batadv_tt_update_changes(bat_priv, orig_node,
-					 ntohs(tt_response->tt_data),
-					 tt_response->ttvn, tt_change);
+		tt_change = (struct batadv_tvlv_tt_change *)(tt_data + 1);
+		batadv_tt_update_changes(bat_priv, orig_node, num_entries,
+					 tt_data->ttvn, tt_change);
 	}
 
 	/* Delete the tt_req_node from pending tt_requests list */
 	spin_lock_bh(&bat_priv->tt.req_list_lock);
 	list_for_each_entry_safe(node, safe, &bat_priv->tt.req_list, list) {
-		if (!batadv_compare_eth(node->addr, tt_response->src))
+		if (!batadv_compare_eth(node->addr, resp_src))
 			continue;
 		list_del(&node->list);
 		kfree(node);
@@ -2437,7 +2431,7 @@ static void batadv_tt_update_orig(struct batadv_priv *bat_priv,
 {
 	uint8_t orig_ttvn = (uint8_t)atomic_read(&orig_node->last_ttvn);
 	bool full_table = true;
-	struct batadv_tt_change *tt_change;
+	struct batadv_tvlv_tt_change *tt_change;
 
 	/* don't care about a backbone gateways updates. */
 	if (batadv_bla_is_backbone_gw_orig(bat_priv, orig_node->orig))
@@ -2458,7 +2452,7 @@ static void batadv_tt_update_orig(struct batadv_priv *bat_priv,
 			goto request_table;
 		}
 
-		tt_change = (struct batadv_tt_change *)tt_buff;
+		tt_change = (struct batadv_tvlv_tt_change *)tt_buff;
 		batadv_tt_update_changes(bat_priv, orig_node, tt_num_changes,
 					 ttvn, tt_change);
 
@@ -2598,6 +2592,81 @@ static void batadv_tt_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv,
 			      num_entries, tt_data->ttvn, ntohs(tt_data->crc));
 }
 
+/**
+ * batadv_tt_tvlv_unicast_handler_v1 - process incoming (unicast) tt tvlv
+ *  container
+ * @bat_priv: the bat priv with all the soft interface information
+ * @src: mac address of tt tvlv sender
+ * @dst: mac address of tt tvlv recipient
+ * @tvlv_value: tvlv buffer containing the tt data
+ * @tvlv_value_len: tvlv buffer length
+ *
+ * Returns NET_RX_DROP if the tt tvlv is to be re-routed, NET_RX_SUCCESS
+ * otherwise.
+ */
+static int batadv_tt_tvlv_unicast_handler_v1(struct batadv_priv *bat_priv,
+					     uint8_t *src, uint8_t *dst,
+					     void *tvlv_value,
+					     uint16_t tvlv_value_len)
+{
+	struct batadv_tvlv_tt_data *tt_data;
+	uint16_t num_entries;
+	char tt_flag;
+	bool ret;
+
+	if (tvlv_value_len < sizeof(*tt_data))
+		return NET_RX_SUCCESS;
+
+	tt_data = (struct batadv_tvlv_tt_data *)tvlv_value;
+	tvlv_value_len -= sizeof(*tt_data);
+
+	num_entries = tvlv_value_len / batadv_tt_len(1);
+
+	switch (tt_data->flags & BATADV_TT_DATA_TYPE_MASK) {
+	case BATADV_TT_REQUEST:
+		batadv_inc_counter(bat_priv, BATADV_CNT_TT_REQUEST_RX);
+
+		/* If this node cannot provide a TT response the tt_request is
+		 * forwarded
+		 */
+		ret = batadv_send_tt_response(bat_priv, tt_data, src, dst);
+		if (!ret) {
+			if (tt_data->flags & BATADV_TT_FULL_TABLE)
+				tt_flag = 'F';
+			else
+				tt_flag = '.';
+
+			batadv_dbg(BATADV_DBG_TT, bat_priv,
+				   "Routing TT_REQUEST to %pM [%c]\n",
+				   dst, tt_flag);
+			/* tvlv API will re-route the packet */
+			return NET_RX_DROP;
+		}
+		break;
+	case BATADV_TT_RESPONSE:
+		batadv_inc_counter(bat_priv, BATADV_CNT_TT_RESPONSE_RX);
+
+		if (batadv_is_my_mac(bat_priv, dst)) {
+			batadv_handle_tt_response(bat_priv, tt_data,
+						  src, num_entries);
+			return NET_RX_SUCCESS;
+		}
+
+		if (tt_data->flags & BATADV_TT_FULL_TABLE)
+			tt_flag =  'F';
+		else
+			tt_flag = '.';
+
+		batadv_dbg(BATADV_DBG_TT, bat_priv,
+			   "Routing TT_RESPONSE to %pM [%c]\n", dst, tt_flag);
+
+		/* tvlv API will re-route the packet */
+		return NET_RX_DROP;
+	}
+
+	return NET_RX_SUCCESS;
+}
+
 /**
  * batadv_tt_init - initialise the translation table internals
  * @bat_priv: the bat priv with all the soft interface information
@@ -2617,7 +2686,8 @@ int batadv_tt_init(struct batadv_priv *bat_priv)
 		return ret;
 
 	batadv_tvlv_handler_register(bat_priv, batadv_tt_tvlv_ogm_handler_v1,
-				     NULL, BATADV_TVLV_TT, 1, BATADV_NO_FLAGS);
+				     batadv_tt_tvlv_unicast_handler_v1,
+				     BATADV_TVLV_TT, 1, BATADV_NO_FLAGS);
 
 	INIT_DELAYED_WORK(&bat_priv->tt.work, batadv_tt_purge);
 	queue_delayed_work(batadv_event_workqueue, &bat_priv->tt.work,
diff --git a/net/batman-adv/translation-table.h b/net/batman-adv/translation-table.h
index a709249cf9d0..b4b6dea4e2be 100644
--- a/net/batman-adv/translation-table.h
+++ b/net/batman-adv/translation-table.h
@@ -20,7 +20,6 @@
 #ifndef _NET_BATMAN_ADV_TRANSLATION_TABLE_H_
 #define _NET_BATMAN_ADV_TRANSLATION_TABLE_H_
 
-int batadv_tt_len(int changes_num);
 int batadv_tt_init(struct batadv_priv *bat_priv);
 void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
 			 int ifindex);
@@ -43,11 +42,7 @@ struct batadv_orig_node *batadv_transtable_search(struct batadv_priv *bat_priv,
 						  const uint8_t *src,
 						  const uint8_t *addr);
 void batadv_tt_free(struct batadv_priv *bat_priv);
-bool batadv_send_tt_response(struct batadv_priv *bat_priv,
-			     struct batadv_tt_query_packet *tt_request);
 bool batadv_is_my_client(struct batadv_priv *bat_priv, const uint8_t *addr);
-void batadv_handle_tt_response(struct batadv_priv *bat_priv,
-			       struct batadv_tt_query_packet *tt_response);
 bool batadv_is_ap_isolated(struct batadv_priv *bat_priv, uint8_t *src,
 			   uint8_t *dst);
 void batadv_tt_local_commit_changes(struct batadv_priv *bat_priv);
-- 
cgit 


From 122edaa05940c021a55492d8c12f7663ce5168de Mon Sep 17 00:00:00 2001
From: Marek Lindner <lindner_marek@yahoo.de>
Date: Tue, 23 Apr 2013 21:40:03 +0800
Subject: batman-adv: tvlv - convert roaming adv packet to use tvlv unicast
 packets

Instead of generating roaming specific packets the TVLV unicast API is
used to send roaming information.

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/main.c              |   2 -
 net/batman-adv/packet.h            |  21 ++++----
 net/batman-adv/routing.c           |  42 ---------------
 net/batman-adv/translation-table.c | 104 ++++++++++++++++++++++++++-----------
 4 files changed, 86 insertions(+), 83 deletions(-)

diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index 39d9b44fba44..fc55acbacacf 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -414,8 +414,6 @@ static void batadv_recv_handler_init(void)
 	batadv_rx_handler[BATADV_BCAST] = batadv_recv_bcast_packet;
 	/* vis packet */
 	batadv_rx_handler[BATADV_VIS] = batadv_recv_vis_packet;
-	/* Roaming advertisement */
-	batadv_rx_handler[BATADV_ROAM_ADV] = batadv_recv_roam_adv;
 	/* unicast tvlv packet */
 	batadv_rx_handler[BATADV_UNICAST_TVLV] = batadv_recv_unicast_tvlv;
 }
diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index a602efc76750..5c08d261e69a 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -31,7 +31,6 @@ enum batadv_packettype {
 	BATADV_BCAST		= 0x04,
 	BATADV_VIS		= 0x05,
 	BATADV_UNICAST_FRAG	= 0x06,
-	BATADV_ROAM_ADV		= 0x08,
 	BATADV_UNICAST_4ADDR	= 0x09,
 	BATADV_CODED		= 0x0a,
 	BATADV_UNICAST_TVLV	= 0x0b,
@@ -127,12 +126,14 @@ enum batadv_bla_claimframe {
  * @BATADV_TVLV_DAT: distributed arp table tvlv
  * @BATADV_TVLV_NC: network coding tvlv
  * @BATADV_TVLV_TT: translation table tvlv
+ * @BATADV_TVLV_ROAM: roaming advertisement tvlv
  */
 enum batadv_tvlv_type {
 	BATADV_TVLV_GW		= 0x01,
 	BATADV_TVLV_DAT		= 0x02,
 	BATADV_TVLV_NC		= 0x03,
 	BATADV_TVLV_TT		= 0x04,
+	BATADV_TVLV_ROAM	= 0x05,
 };
 
 /* the destination hardware field in the ARP frame is used to
@@ -267,14 +268,6 @@ struct batadv_vis_packet {
 	uint8_t  sender_orig[ETH_ALEN]; /* who sent or forwarded this packet */
 };
 
-struct batadv_roam_adv_packet {
-	struct batadv_header header;
-	uint8_t  reserved;
-	uint8_t  dst[ETH_ALEN];
-	uint8_t  src[ETH_ALEN];
-	uint8_t  client[ETH_ALEN];
-} __packed;
-
 /**
  * struct batadv_coded_packet - network coded packet
  * @header: common batman packet header and ttl of first included packet
@@ -373,4 +366,14 @@ struct batadv_tvlv_tt_change {
 	uint8_t addr[ETH_ALEN];
 };
 
+/**
+ * struct batadv_tvlv_roam_adv - roaming advertisement
+ * @client: mac address of roaming client
+ * @reserved: field reserved for future use
+ */
+struct batadv_tvlv_roam_adv {
+	uint8_t  client[ETH_ALEN];
+	uint16_t reserved;
+};
+
 #endif /* _NET_BATMAN_ADV_PACKET_H_ */
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index d12858110f91..a5bf8fffdcea 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -557,48 +557,6 @@ static int batadv_check_unicast_packet(struct batadv_priv *bat_priv,
 	return 0;
 }
 
-int batadv_recv_roam_adv(struct sk_buff *skb, struct batadv_hard_iface *recv_if)
-{
-	struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
-	struct batadv_roam_adv_packet *roam_adv_packet;
-	struct batadv_orig_node *orig_node;
-
-	if (batadv_check_unicast_packet(bat_priv, skb,
-					sizeof(*roam_adv_packet)) < 0)
-		goto out;
-
-	batadv_inc_counter(bat_priv, BATADV_CNT_TT_ROAM_ADV_RX);
-
-	roam_adv_packet = (struct batadv_roam_adv_packet *)skb->data;
-
-	if (!batadv_is_my_mac(bat_priv, roam_adv_packet->dst))
-		return batadv_route_unicast_packet(skb, recv_if);
-
-	/* check if it is a backbone gateway. we don't accept
-	 * roaming advertisement from it, as it has the same
-	 * entries as we have.
-	 */
-	if (batadv_bla_is_backbone_gw_orig(bat_priv, roam_adv_packet->src))
-		goto out;
-
-	orig_node = batadv_orig_hash_find(bat_priv, roam_adv_packet->src);
-	if (!orig_node)
-		goto out;
-
-	batadv_dbg(BATADV_DBG_TT, bat_priv,
-		   "Received ROAMING_ADV from %pM (client %pM)\n",
-		   roam_adv_packet->src, roam_adv_packet->client);
-
-	batadv_tt_global_add(bat_priv, orig_node, roam_adv_packet->client,
-			     BATADV_TT_CLIENT_ROAM,
-			     atomic_read(&orig_node->last_ttvn) + 1);
-
-	batadv_orig_node_free_ref(orig_node);
-out:
-	/* returning NET_RX_DROP will make the caller function kfree the skb */
-	return NET_RX_DROP;
-}
-
 /* find a suitable router for this originator, and use
  * bonding if possible. increases the found neighbors
  * refcount.
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 22fce8a4793e..1149f8610762 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -2189,11 +2189,12 @@ unlock:
 static void batadv_send_roam_adv(struct batadv_priv *bat_priv, uint8_t *client,
 				 struct batadv_orig_node *orig_node)
 {
-	struct sk_buff *skb = NULL;
-	struct batadv_roam_adv_packet *roam_adv_packet;
-	int ret = 1;
 	struct batadv_hard_iface *primary_if;
-	size_t len = sizeof(*roam_adv_packet);
+	struct batadv_tvlv_roam_adv tvlv_roam;
+
+	primary_if = batadv_primary_if_get_selected(bat_priv);
+	if (!primary_if)
+		goto out;
 
 	/* before going on we have to check whether the client has
 	 * already roamed to us too many times
@@ -2201,40 +2202,22 @@ static void batadv_send_roam_adv(struct batadv_priv *bat_priv, uint8_t *client,
 	if (!batadv_tt_check_roam_count(bat_priv, client))
 		goto out;
 
-	skb = netdev_alloc_skb_ip_align(NULL, len + ETH_HLEN);
-	if (!skb)
-		goto out;
-
-	skb->priority = TC_PRIO_CONTROL;
-	skb_reserve(skb, ETH_HLEN);
-
-	roam_adv_packet = (struct batadv_roam_adv_packet *)skb_put(skb, len);
-
-	roam_adv_packet->header.packet_type = BATADV_ROAM_ADV;
-	roam_adv_packet->header.version = BATADV_COMPAT_VERSION;
-	roam_adv_packet->header.ttl = BATADV_TTL;
-	roam_adv_packet->reserved = 0;
-	primary_if = batadv_primary_if_get_selected(bat_priv);
-	if (!primary_if)
-		goto out;
-	memcpy(roam_adv_packet->src, primary_if->net_dev->dev_addr, ETH_ALEN);
-	batadv_hardif_free_ref(primary_if);
-	memcpy(roam_adv_packet->dst, orig_node->orig, ETH_ALEN);
-	memcpy(roam_adv_packet->client, client, ETH_ALEN);
-
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
 		   "Sending ROAMING_ADV to %pM (client %pM)\n",
 		   orig_node->orig, client);
 
 	batadv_inc_counter(bat_priv, BATADV_CNT_TT_ROAM_ADV_TX);
 
-	if (batadv_send_skb_to_orig(skb, orig_node, NULL) != NET_XMIT_DROP)
-		ret = 0;
+	memcpy(tvlv_roam.client, client, sizeof(tvlv_roam.client));
+	tvlv_roam.reserved = 0;
+
+	batadv_tvlv_unicast_send(bat_priv, primary_if->net_dev->dev_addr,
+				 orig_node->orig, BATADV_TVLV_ROAM, 1,
+				 &tvlv_roam, sizeof(tvlv_roam));
 
 out:
-	if (ret && skb)
-		kfree_skb(skb);
-	return;
+	if (primary_if)
+		batadv_hardif_free_ref(primary_if);
 }
 
 static void batadv_tt_purge(struct work_struct *work)
@@ -2667,6 +2650,63 @@ static int batadv_tt_tvlv_unicast_handler_v1(struct batadv_priv *bat_priv,
 	return NET_RX_SUCCESS;
 }
 
+/**
+ * batadv_roam_tvlv_unicast_handler_v1 - process incoming tt roam tvlv container
+ * @bat_priv: the bat priv with all the soft interface information
+ * @src: mac address of tt tvlv sender
+ * @dst: mac address of tt tvlv recipient
+ * @tvlv_value: tvlv buffer containing the tt data
+ * @tvlv_value_len: tvlv buffer length
+ *
+ * Returns NET_RX_DROP if the tt roam tvlv is to be re-routed, NET_RX_SUCCESS
+ * otherwise.
+ */
+static int batadv_roam_tvlv_unicast_handler_v1(struct batadv_priv *bat_priv,
+					       uint8_t *src, uint8_t *dst,
+					       void *tvlv_value,
+					       uint16_t tvlv_value_len)
+{
+	struct batadv_tvlv_roam_adv *roaming_adv;
+	struct batadv_orig_node *orig_node = NULL;
+
+	/* If this node is not the intended recipient of the
+	 * roaming advertisement the packet is forwarded
+	 * (the tvlv API will re-route the packet).
+	 */
+	if (!batadv_is_my_mac(bat_priv, dst))
+		return NET_RX_DROP;
+
+	/* check if it is a backbone gateway. we don't accept
+	 * roaming advertisement from it, as it has the same
+	 * entries as we have.
+	 */
+	if (batadv_bla_is_backbone_gw_orig(bat_priv, src))
+		goto out;
+
+	if (tvlv_value_len < sizeof(*roaming_adv))
+		goto out;
+
+	orig_node = batadv_orig_hash_find(bat_priv, src);
+	if (!orig_node)
+		goto out;
+
+	batadv_inc_counter(bat_priv, BATADV_CNT_TT_ROAM_ADV_RX);
+	roaming_adv = (struct batadv_tvlv_roam_adv *)tvlv_value;
+
+	batadv_dbg(BATADV_DBG_TT, bat_priv,
+		   "Received ROAMING_ADV from %pM (client %pM)\n",
+		   src, roaming_adv->client);
+
+	batadv_tt_global_add(bat_priv, orig_node, roaming_adv->client,
+			     BATADV_TT_CLIENT_ROAM,
+			     atomic_read(&orig_node->last_ttvn) + 1);
+
+out:
+	if (orig_node)
+		batadv_orig_node_free_ref(orig_node);
+	return NET_RX_SUCCESS;
+}
+
 /**
  * batadv_tt_init - initialise the translation table internals
  * @bat_priv: the bat priv with all the soft interface information
@@ -2689,6 +2729,10 @@ int batadv_tt_init(struct batadv_priv *bat_priv)
 				     batadv_tt_tvlv_unicast_handler_v1,
 				     BATADV_TVLV_TT, 1, BATADV_NO_FLAGS);
 
+	batadv_tvlv_handler_register(bat_priv, NULL,
+				     batadv_roam_tvlv_unicast_handler_v1,
+				     BATADV_TVLV_ROAM, 1, BATADV_NO_FLAGS);
+
 	INIT_DELAYED_WORK(&bat_priv->tt.work, batadv_tt_purge);
 	queue_delayed_work(batadv_event_workqueue, &bat_priv->tt.work,
 			   msecs_to_jiffies(BATADV_TT_WORK_PERIOD));
-- 
cgit 


From ced72933a5e8ab52bb066a4a4083840b6f7f62ff Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <ordex@autistici.org>
Date: Wed, 24 Apr 2013 16:37:51 +0200
Subject: batman-adv: use CRC32C instead of CRC16 in TT code

CRC32C has to be preferred to CRC16 because of its possible
HW native support and because of the reduced collision
probability. With this change the Translation Table
component now uses CRC32C to compute the local and global
table checksum.

Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/packet.h            |  6 ++--
 net/batman-adv/translation-table.c | 73 ++++++++++++++++++++------------------
 net/batman-adv/types.h             |  4 +--
 3 files changed, 45 insertions(+), 38 deletions(-)

diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index 5c08d261e69a..7a337d732bea 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -345,12 +345,14 @@ struct batadv_tvlv_gateway_data {
  * struct batadv_tvlv_tt_data - tt data propagated through the tt tvlv container
  * @flags: translation table flags (see batadv_tt_data_flags)
  * @ttvn: translation table version number
- * @crc: crc16 checksum of the local translation table
+ * @reserved: field reserved for future use
+ * @crc: crc32 checksum of the local translation table
  */
 struct batadv_tvlv_tt_data {
 	uint8_t flags;
 	uint8_t ttvn;
-	__be16  crc;
+	uint16_t reserved;
+	__be32  crc;
 };
 
 /**
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 1149f8610762..c7416947a4e0 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -27,7 +27,7 @@
 #include "routing.h"
 #include "bridge_loop_avoidance.h"
 
-#include <linux/crc16.h>
+#include <linux/crc32c.h>
 
 /* hash class keys */
 static struct lock_class_key batadv_tt_local_hash_lock_class_key;
@@ -409,7 +409,7 @@ static void batadv_tt_tvlv_container_update(struct batadv_priv *bat_priv)
 
 	tt_data->flags = BATADV_TT_OGM_DIFF;
 	tt_data->ttvn = atomic_read(&bat_priv->tt.vn);
-	tt_data->crc = htons(bat_priv->tt.local_crc);
+	tt_data->crc = htonl(bat_priv->tt.local_crc);
 
 	if (tt_diff_len == 0)
 		goto container_register;
@@ -481,7 +481,7 @@ int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset)
 		goto out;
 
 	seq_printf(seq,
-		   "Locally retrieved addresses (from %s) announced via TT (TTVN: %u CRC: %#.4x):\n",
+		   "Locally retrieved addresses (from %s) announced via TT (TTVN: %u CRC: %#.8x):\n",
 		   net_dev->name, (uint8_t)atomic_read(&bat_priv->tt.vn),
 		   bat_priv->tt.local_crc);
 	seq_printf(seq, "       %-13s %-7s %-10s\n", "Client", "Flags",
@@ -993,7 +993,7 @@ batadv_tt_global_print_entry(struct batadv_tt_global_entry *tt_global_entry,
 	if (best_entry) {
 		last_ttvn = atomic_read(&best_entry->orig_node->last_ttvn);
 		seq_printf(seq,
-			   " %c %pM  (%3u) via %pM     (%3u)   (%#.4x) [%c%c%c]\n",
+			   " %c %pM  (%3u) via %pM     (%3u)   (%#.8x) [%c%c%c]\n",
 			   '*', tt_global_entry->common.addr,
 			   best_entry->ttvn, best_entry->orig_node->orig,
 			   last_ttvn, best_entry->orig_node->tt_crc,
@@ -1037,7 +1037,7 @@ int batadv_tt_global_seq_print_text(struct seq_file *seq, void *offset)
 	seq_printf(seq,
 		   "Globally announced TT entries received via the mesh %s\n",
 		   net_dev->name);
-	seq_printf(seq, "       %-13s %s       %-15s %s (%-6s) %s\n",
+	seq_printf(seq, "       %-13s %s       %-15s %s (%-10s) %s\n",
 		   "Client", "(TTVN)", "Originator", "(Curr TTVN)", "CRC",
 		   "Flags");
 
@@ -1394,17 +1394,19 @@ out:
 	return orig_node;
 }
 
-/* Calculates the checksum of the local table of a given orig_node */
-static uint16_t batadv_tt_global_crc(struct batadv_priv *bat_priv,
+/**
+ * batadv_tt_global_crc - calculates the checksum of the local table belonging
+ *  to the given orig_node
+ * @bat_priv: the bat priv with all the soft interface information
+ */
+static uint32_t batadv_tt_global_crc(struct batadv_priv *bat_priv,
 				     struct batadv_orig_node *orig_node)
 {
-	uint16_t total = 0, total_one;
 	struct batadv_hashtable *hash = bat_priv->tt.global_hash;
 	struct batadv_tt_common_entry *tt_common;
 	struct batadv_tt_global_entry *tt_global;
 	struct hlist_head *head;
-	uint32_t i;
-	int j;
+	uint32_t i, crc = 0;
 
 	for (i = 0; i < hash->size; i++) {
 		head = &hash->table[i];
@@ -1435,27 +1437,24 @@ static uint16_t batadv_tt_global_crc(struct batadv_priv *bat_priv,
 							     orig_node))
 				continue;
 
-			total_one = 0;
-			for (j = 0; j < ETH_ALEN; j++)
-				total_one = crc16_byte(total_one,
-						       tt_common->addr[j]);
-			total ^= total_one;
+			crc ^= crc32c(0, tt_common->addr, ETH_ALEN);
 		}
 		rcu_read_unlock();
 	}
 
-	return total;
+	return crc;
 }
 
-/* Calculates the checksum of the local table */
-static uint16_t batadv_tt_local_crc(struct batadv_priv *bat_priv)
+/**
+ * batadv_tt_local_crc - calculates the checksum of the local table
+ * @bat_priv: the bat priv with all the soft interface information
+ */
+static uint32_t batadv_tt_local_crc(struct batadv_priv *bat_priv)
 {
-	uint16_t total = 0, total_one;
 	struct batadv_hashtable *hash = bat_priv->tt.local_hash;
 	struct batadv_tt_common_entry *tt_common;
 	struct hlist_head *head;
-	uint32_t i;
-	int j;
+	uint32_t i, crc = 0;
 
 	for (i = 0; i < hash->size; i++) {
 		head = &hash->table[i];
@@ -1467,16 +1466,13 @@ static uint16_t batadv_tt_local_crc(struct batadv_priv *bat_priv)
 			 */
 			if (tt_common->flags & BATADV_TT_CLIENT_NEW)
 				continue;
-			total_one = 0;
-			for (j = 0; j < ETH_ALEN; j++)
-				total_one = crc16_byte(total_one,
-						       tt_common->addr[j]);
-			total ^= total_one;
+
+			crc ^= crc32c(0, tt_common->addr, ETH_ALEN);
 		}
 		rcu_read_unlock();
 	}
 
-	return total;
+	return crc;
 }
 
 static void batadv_tt_req_list_free(struct batadv_priv *bat_priv)
@@ -1662,9 +1658,18 @@ out:
 	return tvlv_tt_data;
 }
 
+/**
+ * batadv_send_tt_request - send a TT Request message to a given node
+ * @bat_priv: the bat priv with all the soft interface information
+ * @dst_orig_node: the destination of the message
+ * @ttvn: the version number that the source of the message is looking for
+ * @tt_crc: the CRC associated with the version number
+ * @full_table: ask for the entire translation table if true, while only for the
+ *  last TT diff otherwise
+ */
 static int batadv_send_tt_request(struct batadv_priv *bat_priv,
 				  struct batadv_orig_node *dst_orig_node,
-				  uint8_t ttvn, uint16_t tt_crc,
+				  uint8_t ttvn, uint32_t tt_crc,
 				  bool full_table)
 {
 	struct batadv_tvlv_tt_data *tvlv_tt_data = NULL;
@@ -1689,7 +1694,7 @@ static int batadv_send_tt_request(struct batadv_priv *bat_priv,
 
 	tvlv_tt_data->flags = BATADV_TT_REQUEST;
 	tvlv_tt_data->ttvn = ttvn;
-	tvlv_tt_data->crc = htons(tt_crc);
+	tvlv_tt_data->crc = htonl(tt_crc);
 
 	if (full_table)
 		tvlv_tt_data->flags |= BATADV_TT_FULL_TABLE;
@@ -1756,7 +1761,7 @@ static bool batadv_send_other_tt_response(struct batadv_priv *bat_priv,
 
 	/* this node doesn't have the requested data */
 	if (orig_ttvn != req_ttvn ||
-	    tt_data->crc != htons(req_dst_orig_node->tt_crc))
+	    tt_data->crc != htonl(req_dst_orig_node->tt_crc))
 		goto out;
 
 	/* If the full table has been explicitly requested */
@@ -2404,13 +2409,13 @@ out:
  * @tt_buff: buffer holding the tt information
  * @tt_num_changes: number of tt changes inside the tt buffer
  * @ttvn: translation table version number of this changeset
- * @tt_crc: crc16 checksum of orig node's translation table
+ * @tt_crc: crc32 checksum of orig node's translation table
  */
 static void batadv_tt_update_orig(struct batadv_priv *bat_priv,
 				  struct batadv_orig_node *orig_node,
 				  const unsigned char *tt_buff,
 				  uint16_t tt_num_changes, uint8_t ttvn,
-				  uint16_t tt_crc)
+				  uint32_t tt_crc)
 {
 	uint8_t orig_ttvn = (uint8_t)atomic_read(&orig_node->last_ttvn);
 	bool full_table = true;
@@ -2464,7 +2469,7 @@ static void batadv_tt_update_orig(struct batadv_priv *bat_priv,
 		    orig_node->tt_crc != tt_crc) {
 request_table:
 			batadv_dbg(BATADV_DBG_TT, bat_priv,
-				   "TT inconsistency for %pM. Need to retrieve the correct information (ttvn: %u last_ttvn: %u crc: %#.4x last_crc: %#.4x num_changes: %u)\n",
+				   "TT inconsistency for %pM. Need to retrieve the correct information (ttvn: %u last_ttvn: %u crc: %#.8x last_crc: %#.8x num_changes: %u)\n",
 				   orig_node->orig, ttvn, orig_ttvn, tt_crc,
 				   orig_node->tt_crc, tt_num_changes);
 			batadv_send_tt_request(bat_priv, orig_node, ttvn,
@@ -2572,7 +2577,7 @@ static void batadv_tt_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv,
 
 	batadv_tt_update_orig(bat_priv, orig,
 			      (unsigned char *)(tt_data + 1),
-			      num_entries, tt_data->ttvn, ntohs(tt_data->crc));
+			      num_entries, tt_data->ttvn, ntohl(tt_data->crc));
 }
 
 /**
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index bdabbc21eb41..e98915ac2a66 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -150,7 +150,7 @@ struct batadv_orig_node {
 	uint8_t flags;
 	uint8_t capabilities;
 	atomic_t last_ttvn;
-	uint16_t tt_crc;
+	uint32_t tt_crc;
 	unsigned char *tt_buff;
 	int16_t tt_buff_len;
 	spinlock_t tt_buff_lock; /* protects tt_buff & tt_buff_len */
@@ -377,7 +377,7 @@ struct batadv_priv_tt {
 	spinlock_t req_list_lock; /* protects req_list */
 	spinlock_t roam_list_lock; /* protects roam_list */
 	atomic_t local_entry_num;
-	uint16_t local_crc;
+	uint32_t local_crc;
 	unsigned char *last_changeset;
 	int16_t last_changeset_len;
 	/* protects last_changeset & last_changeset_len */
-- 
cgit 


From 0035f97e65761099cbfa9554ee8cd9bfc395eeea Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <ordex@autistici.org>
Date: Wed, 24 Apr 2013 16:37:52 +0200
Subject: batman-adv: move BATADV_TT_CLIENT_TEMP to higher bit

Client flags from bit 0 to 7 are sent over the wire.
BATADV_TT_CLIENT_TEMP is a local flag and is not supposed
to be sent to the network. Therefore it has occupy a
higher bit.

Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/packet.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index 7a337d732bea..ab3084f4f8ff 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -106,10 +106,10 @@ enum batadv_tt_client_flags {
 	BATADV_TT_CLIENT_DEL     = BIT(0),
 	BATADV_TT_CLIENT_ROAM    = BIT(1),
 	BATADV_TT_CLIENT_WIFI    = BIT(2),
-	BATADV_TT_CLIENT_TEMP	 = BIT(3),
 	BATADV_TT_CLIENT_NOPURGE = BIT(8),
 	BATADV_TT_CLIENT_NEW     = BIT(9),
 	BATADV_TT_CLIENT_PENDING = BIT(10),
+	BATADV_TT_CLIENT_TEMP	 = BIT(11),
 };
 
 /* claim frame types for the bridge loop avoidance */
-- 
cgit 


From 9f4980e68b4b72e6a4d7caadfacc54260d05ebf6 Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Date: Thu, 25 Apr 2013 11:57:42 +0200
Subject: batman-adv: remove vis functionality

This is replaced by a userspace program, we don't need this
functionality to bloat the kernel.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 Documentation/ABI/testing/sysfs-class-net-mesh |  11 -
 Documentation/networking/batman-adv.txt        |  50 +-
 net/batman-adv/Makefile                        |   1 -
 net/batman-adv/bat_iv_ogm.c                    |   8 -
 net/batman-adv/debugfs.c                       |   9 -
 net/batman-adv/hard-interface.c                |   9 -
 net/batman-adv/main.c                          |  11 -
 net/batman-adv/main.h                          |   2 -
 net/batman-adv/packet.h                        |  21 +-
 net/batman-adv/routing.c                       |  51 --
 net/batman-adv/routing.h                       |   2 -
 net/batman-adv/send.c                          |   1 -
 net/batman-adv/soft-interface.c                |   1 -
 net/batman-adv/sysfs.c                         |  72 --
 net/batman-adv/types.h                         |  84 ---
 net/batman-adv/vis.c                           | 938 -------------------------
 net/batman-adv/vis.h                           |  36 -
 17 files changed, 3 insertions(+), 1304 deletions(-)
 delete mode 100644 net/batman-adv/vis.c
 delete mode 100644 net/batman-adv/vis.h

diff --git a/Documentation/ABI/testing/sysfs-class-net-mesh b/Documentation/ABI/testing/sysfs-class-net-mesh
index bdcd8b4e38f2..f00a69b68a25 100644
--- a/Documentation/ABI/testing/sysfs-class-net-mesh
+++ b/Documentation/ABI/testing/sysfs-class-net-mesh
@@ -88,14 +88,3 @@ Contact:        Marek Lindner <lindner_marek@yahoo.de>
 Description:
                 Defines the routing procotol this mesh instance
                 uses to find the optimal paths through the mesh.
-
-What:           /sys/class/net/<mesh_iface>/mesh/vis_mode
-Date:           May 2010
-Contact:        Marek Lindner <lindner_marek@yahoo.de>
-Description:
-                Each batman node only maintains information about its
-                own local neighborhood, therefore generating graphs
-                showing the topology of the entire mesh is not easily
-                feasible without having a central instance to collect
-                the local topologies from all nodes. This file allows
-                to activate the collecting (server) mode.
diff --git a/Documentation/networking/batman-adv.txt b/Documentation/networking/batman-adv.txt
index c1d82047a4b1..897d1f4e1df1 100644
--- a/Documentation/networking/batman-adv.txt
+++ b/Documentation/networking/batman-adv.txt
@@ -69,8 +69,7 @@ folder:
 # aggregated_ogms        gw_bandwidth           log_level
 # ap_isolation           gw_mode                orig_interval
 # bonding                gw_sel_class           routing_algo
-# bridge_loop_avoidance  hop_penalty            vis_mode
-# fragmentation
+# bridge_loop_avoidance  hop_penalty            fragmentation
 
 
 There is a special folder for debugging information:
@@ -78,7 +77,7 @@ There is a special folder for debugging information:
 # ls /sys/kernel/debug/batman_adv/bat0/
 # bla_backbone_table  log                 transtable_global
 # bla_claim_table     originators         transtable_local
-# gateways            socket              vis_data
+# gateways            socket
 
 Some of the files contain all sort of status information  regard-
 ing  the  mesh  network.  For  example, you can view the table of
@@ -127,51 +126,6 @@ ously assigned to interfaces now used by batman advanced, e.g.
 # ifconfig eth0 0.0.0.0
 
 
-VISUALIZATION
--------------
-
-If you want topology visualization, at least one mesh  node  must
-be configured as VIS-server:
-
-# echo "server" > /sys/class/net/bat0/mesh/vis_mode
-
-Each  node  is  either configured as "server" or as "client" (de-
-fault: "client").  Clients send their topology data to the server
-next to them, and server synchronize with other servers. If there
-is no server configured (default) within the  mesh,  no  topology
-information   will  be  transmitted.  With  these  "synchronizing
-servers", there can be 1 or more vis servers sharing the same (or
-at least very similar) data.
-
-When  configured  as  server,  you can get a topology snapshot of
-your mesh:
-
-# cat /sys/kernel/debug/batman_adv/bat0/vis_data
-
-This raw output is intended to be easily parsable and convertable
-with  other tools. Have a look at the batctl README if you want a
-vis output in dot or json format for instance and how those  out-
-puts could then be visualised in an image.
-
-The raw format consists of comma separated values per entry where
-each entry is giving information about a  certain  source  inter-
-face.  Each  entry can/has to have the following values:
--> "mac" - mac address of an originator's source interface
-           (each line begins with it)
--> "TQ mac  value"  -  src mac's link quality towards mac address
-                       of a neighbor originator's interface which
-                       is being used for routing
--> "TT mac" - TT announced by source mac
--> "PRIMARY" - this  is a primary interface
--> "SEC mac" - secondary mac address of source
-               (requires preceding PRIMARY)
-
-The TQ value has a range from 4 to 255 with 255 being  the  best.
-The TT entries are showing which hosts are connected to the mesh
-via bat0 or being bridged into the mesh network.  The PRIMARY/SEC
-values are only applied on primary interfaces
-
-
 LOGGING/DEBUGGING
 -----------------
 
diff --git a/net/batman-adv/Makefile b/net/batman-adv/Makefile
index 489bb36f1b94..8ddbfe66d637 100644
--- a/net/batman-adv/Makefile
+++ b/net/batman-adv/Makefile
@@ -38,4 +38,3 @@ batman-adv-y += soft-interface.o
 batman-adv-y += sysfs.o
 batman-adv-y += translation-table.o
 batman-adv-y += unicast.o
-batman-adv-y += vis.o
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 871ba672bdc2..97b42d3c4bef 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -687,11 +687,9 @@ static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
 	struct batadv_ogm_packet *batadv_ogm_packet;
 	struct batadv_hard_iface *primary_if;
 	int *ogm_buff_len = &hard_iface->bat_iv.ogm_buff_len;
-	int vis_server;
 	uint32_t seqno;
 	uint16_t tvlv_len = 0;
 
-	vis_server = atomic_read(&bat_priv->vis_mode);
 	primary_if = batadv_primary_if_get_selected(bat_priv);
 
 	if (hard_iface == primary_if) {
@@ -712,11 +710,6 @@ static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
 	batadv_ogm_packet->seqno = htonl(seqno);
 	atomic_inc(&hard_iface->bat_iv.ogm_seqno);
 
-	if (vis_server == BATADV_VIS_TYPE_SERVER_SYNC)
-		batadv_ogm_packet->flags |= BATADV_VIS_SERVER;
-	else
-		batadv_ogm_packet->flags &= ~BATADV_VIS_SERVER;
-
 	batadv_iv_ogm_slide_own_bcast_window(hard_iface);
 	batadv_iv_ogm_queue_add(bat_priv, hard_iface->bat_iv.ogm_buff,
 				hard_iface->bat_iv.ogm_buff_len, hard_iface, 1,
@@ -790,7 +783,6 @@ batadv_iv_ogm_orig_update(struct batadv_priv *bat_priv,
 
 	rcu_read_unlock();
 
-	orig_node->flags = batadv_ogm_packet->flags;
 	neigh_node->last_seen = jiffies;
 
 	spin_lock_bh(&neigh_node->lq_update_lock);
diff --git a/net/batman-adv/debugfs.c b/net/batman-adv/debugfs.c
index f186a55b23c3..049a7a2ac5b6 100644
--- a/net/batman-adv/debugfs.c
+++ b/net/batman-adv/debugfs.c
@@ -28,7 +28,6 @@
 #include "gateway_common.h"
 #include "gateway_client.h"
 #include "soft-interface.h"
-#include "vis.h"
 #include "icmp_socket.h"
 #include "bridge_loop_avoidance.h"
 #include "distributed-arp-table.h"
@@ -300,12 +299,6 @@ static int batadv_transtable_local_open(struct inode *inode, struct file *file)
 	return single_open(file, batadv_tt_local_seq_print_text, net_dev);
 }
 
-static int batadv_vis_data_open(struct inode *inode, struct file *file)
-{
-	struct net_device *net_dev = (struct net_device *)inode->i_private;
-	return single_open(file, batadv_vis_seq_print_text, net_dev);
-}
-
 struct batadv_debuginfo {
 	struct attribute attr;
 	const struct file_operations fops;
@@ -356,7 +349,6 @@ static BATADV_DEBUGINFO(dat_cache, S_IRUGO, batadv_dat_cache_open);
 #endif
 static BATADV_DEBUGINFO(transtable_local, S_IRUGO,
 			batadv_transtable_local_open);
-static BATADV_DEBUGINFO(vis_data, S_IRUGO, batadv_vis_data_open);
 #ifdef CONFIG_BATMAN_ADV_NC
 static BATADV_DEBUGINFO(nc_nodes, S_IRUGO, batadv_nc_nodes_open);
 #endif
@@ -373,7 +365,6 @@ static struct batadv_debuginfo *batadv_mesh_debuginfos[] = {
 	&batadv_debuginfo_dat_cache,
 #endif
 	&batadv_debuginfo_transtable_local,
-	&batadv_debuginfo_vis_data,
 #ifdef CONFIG_BATMAN_ADV_NC
 	&batadv_debuginfo_nc_nodes,
 #endif
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index c478e6bcf89b..eeb667112d64 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -194,22 +194,13 @@ out:
 static void batadv_primary_if_update_addr(struct batadv_priv *bat_priv,
 					  struct batadv_hard_iface *oldif)
 {
-	struct batadv_vis_packet *vis_packet;
 	struct batadv_hard_iface *primary_if;
-	struct sk_buff *skb;
 
 	primary_if = batadv_primary_if_get_selected(bat_priv);
 	if (!primary_if)
 		goto out;
 
 	batadv_dat_init_own_addr(bat_priv, primary_if);
-
-	skb = bat_priv->vis.my_info->skb_packet;
-	vis_packet = (struct batadv_vis_packet *)skb->data;
-	memcpy(vis_packet->vis_orig, primary_if->net_dev->dev_addr, ETH_ALEN);
-	memcpy(vis_packet->sender_orig,
-	       primary_if->net_dev->dev_addr, ETH_ALEN);
-
 	batadv_bla_update_orig_address(bat_priv, primary_if, oldif);
 out:
 	if (primary_if)
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index fc55acbacacf..43dc92e79a76 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -38,7 +38,6 @@
 #include "distributed-arp-table.h"
 #include "unicast.h"
 #include "gateway_common.h"
-#include "vis.h"
 #include "hash.h"
 #include "bat_algo.h"
 #include "network-coding.h"
@@ -112,8 +111,6 @@ int batadv_mesh_init(struct net_device *soft_iface)
 	spin_lock_init(&bat_priv->tt.roam_list_lock);
 	spin_lock_init(&bat_priv->tt.last_changeset_lock);
 	spin_lock_init(&bat_priv->gw.list_lock);
-	spin_lock_init(&bat_priv->vis.hash_lock);
-	spin_lock_init(&bat_priv->vis.list_lock);
 	spin_lock_init(&bat_priv->tvlv.container_list_lock);
 	spin_lock_init(&bat_priv->tvlv.handler_list_lock);
 
@@ -137,10 +134,6 @@ int batadv_mesh_init(struct net_device *soft_iface)
 	batadv_tt_local_add(soft_iface, soft_iface->dev_addr,
 			    BATADV_NULL_IFINDEX);
 
-	ret = batadv_vis_init(bat_priv);
-	if (ret < 0)
-		goto err;
-
 	ret = batadv_bla_init(bat_priv);
 	if (ret < 0)
 		goto err;
@@ -173,8 +166,6 @@ void batadv_mesh_free(struct net_device *soft_iface)
 
 	batadv_purge_outstanding_packets(bat_priv, NULL);
 
-	batadv_vis_quit(bat_priv);
-
 	batadv_gw_node_purge(bat_priv);
 	batadv_nc_mesh_free(bat_priv);
 	batadv_dat_free(bat_priv);
@@ -412,8 +403,6 @@ static void batadv_recv_handler_init(void)
 	batadv_rx_handler[BATADV_UNICAST_FRAG] = batadv_recv_ucast_frag_packet;
 	/* broadcast packet */
 	batadv_rx_handler[BATADV_BCAST] = batadv_recv_bcast_packet;
-	/* vis packet */
-	batadv_rx_handler[BATADV_VIS] = batadv_recv_vis_packet;
 	/* unicast tvlv packet */
 	batadv_rx_handler[BATADV_UNICAST_TVLV] = batadv_recv_unicast_tvlv;
 }
diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index 397722fb509b..e11c2ec7a739 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -86,8 +86,6 @@
 /* numbers of originator to contact for any PUT/GET DHT operation */
 #define BATADV_DAT_CANDIDATES_NUM 3
 
-#define BATADV_VIS_INTERVAL 5000	/* 5 seconds */
-
 /* how much worse secondary interfaces may be to be considered as bonding
  * candidates
  */
diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index ab3084f4f8ff..87fcf2e7883c 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -29,7 +29,6 @@ enum batadv_packettype {
 	BATADV_ICMP		= 0x02,
 	BATADV_UNICAST		= 0x03,
 	BATADV_BCAST		= 0x04,
-	BATADV_VIS		= 0x05,
 	BATADV_UNICAST_FRAG	= 0x06,
 	BATADV_UNICAST_4ADDR	= 0x09,
 	BATADV_CODED		= 0x0a,
@@ -56,7 +55,6 @@ enum batadv_subtype {
 enum batadv_iv_flags {
 	BATADV_NOT_BEST_NEXT_HOP   = BIT(3),
 	BATADV_PRIMARIES_FIRST_HOP = BIT(4),
-	BATADV_VIS_SERVER	   = BIT(5),
 	BATADV_DIRECTLINK	   = BIT(6),
 };
 
@@ -69,12 +67,6 @@ enum batadv_icmp_packettype {
 	BATADV_PARAMETER_PROBLEM       = 12,
 };
 
-/* vis defines */
-enum batadv_vis_packettype {
-	BATADV_VIS_TYPE_SERVER_SYNC   = 0,
-	BATADV_VIS_TYPE_CLIENT_UPDATE = 1,
-};
-
 /* fragmentation defines */
 enum batadv_unicast_frag_flags {
 	BATADV_UNI_FRAG_HEAD	  = BIT(0),
@@ -161,7 +153,7 @@ struct batadv_header {
  */
 struct batadv_ogm_packet {
 	struct batadv_header header;
-	uint8_t  flags;    /* 0x40: DIRECTLINK flag, 0x20 VIS_SERVER flag... */
+	uint8_t  flags;    /* 0x40: DIRECTLINK flag ... */
 	__be32   seqno;
 	uint8_t  orig[ETH_ALEN];
 	uint8_t  prev_sender[ETH_ALEN];
@@ -257,17 +249,6 @@ struct batadv_bcast_packet {
 
 #pragma pack()
 
-struct batadv_vis_packet {
-	struct batadv_header header;
-	uint8_t  vis_type;	 /* which type of vis-participant sent this? */
-	__be32   seqno;		 /* sequence number */
-	uint8_t  entries;	 /* number of entries behind this struct */
-	uint8_t  reserved;
-	uint8_t  vis_orig[ETH_ALEN];	/* originator reporting its neighbors */
-	uint8_t  target_orig[ETH_ALEN]; /* who should receive this packet */
-	uint8_t  sender_orig[ETH_ALEN]; /* who sent or forwarded this packet */
-};
-
 /**
  * struct batadv_coded_packet - network coded packet
  * @header: common batman packet header and ttl of first included packet
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index a5bf8fffdcea..2a9318bd9026 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -25,7 +25,6 @@
 #include "icmp_socket.h"
 #include "translation-table.h"
 #include "originator.h"
-#include "vis.h"
 #include "unicast.h"
 #include "bridge_loop_avoidance.h"
 #include "distributed-arp-table.h"
@@ -1168,53 +1167,3 @@ out:
 		batadv_orig_node_free_ref(orig_node);
 	return ret;
 }
-
-int batadv_recv_vis_packet(struct sk_buff *skb,
-			   struct batadv_hard_iface *recv_if)
-{
-	struct batadv_vis_packet *vis_packet;
-	struct ethhdr *ethhdr;
-	struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
-	int hdr_size = sizeof(*vis_packet);
-
-	/* keep skb linear */
-	if (skb_linearize(skb) < 0)
-		return NET_RX_DROP;
-
-	if (unlikely(!pskb_may_pull(skb, hdr_size)))
-		return NET_RX_DROP;
-
-	vis_packet = (struct batadv_vis_packet *)skb->data;
-	ethhdr = eth_hdr(skb);
-
-	/* not for me */
-	if (!batadv_is_my_mac(bat_priv, ethhdr->h_dest))
-		return NET_RX_DROP;
-
-	/* ignore own packets */
-	if (batadv_is_my_mac(bat_priv, vis_packet->vis_orig))
-		return NET_RX_DROP;
-
-	if (batadv_is_my_mac(bat_priv, vis_packet->sender_orig))
-		return NET_RX_DROP;
-
-	switch (vis_packet->vis_type) {
-	case BATADV_VIS_TYPE_SERVER_SYNC:
-		batadv_receive_server_sync_packet(bat_priv, vis_packet,
-						  skb_headlen(skb));
-		break;
-
-	case BATADV_VIS_TYPE_CLIENT_UPDATE:
-		batadv_receive_client_update_packet(bat_priv, vis_packet,
-						    skb_headlen(skb));
-		break;
-
-	default:	/* ignore unknown packet */
-		break;
-	}
-
-	/* We take a copy of the data in the packet, so we should
-	 * always free the skbuf.
-	 */
-	return NET_RX_DROP;
-}
diff --git a/net/batman-adv/routing.h b/net/batman-adv/routing.h
index 0a7983b25395..b3f53d492b3c 100644
--- a/net/batman-adv/routing.h
+++ b/net/batman-adv/routing.h
@@ -34,8 +34,6 @@ int batadv_recv_ucast_frag_packet(struct sk_buff *skb,
 				  struct batadv_hard_iface *recv_if);
 int batadv_recv_bcast_packet(struct sk_buff *skb,
 			     struct batadv_hard_iface *recv_if);
-int batadv_recv_vis_packet(struct sk_buff *skb,
-			   struct batadv_hard_iface *recv_if);
 int batadv_recv_tt_query(struct sk_buff *skb,
 			 struct batadv_hard_iface *recv_if);
 int batadv_recv_roam_adv(struct sk_buff *skb,
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index 0266edd0fa7f..81d69fb97c17 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -24,7 +24,6 @@
 #include "translation-table.h"
 #include "soft-interface.h"
 #include "hard-interface.h"
-#include "vis.h"
 #include "gateway_common.h"
 #include "originator.h"
 #include "network-coding.h"
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 84623a955d52..25e6004e8e01 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -469,7 +469,6 @@ static int batadv_softif_init_late(struct net_device *dev)
 	atomic_set(&bat_priv->distributed_arp_table, 1);
 #endif
 	atomic_set(&bat_priv->ap_isolation, 0);
-	atomic_set(&bat_priv->vis_mode, BATADV_VIS_TYPE_CLIENT_UPDATE);
 	atomic_set(&bat_priv->gw_mode, BATADV_GW_MODE_OFF);
 	atomic_set(&bat_priv->gw_sel_class, 20);
 	atomic_set(&bat_priv->gw.bandwidth_down, 100);
diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c
index fbc1c251711d..869eb46329cb 100644
--- a/net/batman-adv/sysfs.c
+++ b/net/batman-adv/sysfs.c
@@ -26,7 +26,6 @@
 #include "hard-interface.h"
 #include "gateway_common.h"
 #include "gateway_client.h"
-#include "vis.h"
 
 static struct net_device *batadv_kobj_to_netdev(struct kobject *obj)
 {
@@ -231,74 +230,6 @@ __batadv_store_uint_attr(const char *buff, size_t count,
 	return ret;
 }
 
-static ssize_t batadv_show_vis_mode(struct kobject *kobj,
-				    struct attribute *attr, char *buff)
-{
-	struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
-	int vis_mode = atomic_read(&bat_priv->vis_mode);
-	const char *mode;
-
-	if (vis_mode == BATADV_VIS_TYPE_CLIENT_UPDATE)
-		mode = "client";
-	else
-		mode = "server";
-
-	return sprintf(buff, "%s\n", mode);
-}
-
-static ssize_t batadv_store_vis_mode(struct kobject *kobj,
-				     struct attribute *attr, char *buff,
-				     size_t count)
-{
-	struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
-	struct batadv_priv *bat_priv = netdev_priv(net_dev);
-	unsigned long val;
-	int ret, vis_mode_tmp = -1;
-	const char *old_mode, *new_mode;
-
-	ret = kstrtoul(buff, 10, &val);
-
-	if (((count == 2) && (!ret) &&
-	     (val == BATADV_VIS_TYPE_CLIENT_UPDATE)) ||
-	    (strncmp(buff, "client", 6) == 0) ||
-	    (strncmp(buff, "off", 3) == 0))
-		vis_mode_tmp = BATADV_VIS_TYPE_CLIENT_UPDATE;
-
-	if (((count == 2) && (!ret) &&
-	     (val == BATADV_VIS_TYPE_SERVER_SYNC)) ||
-	    (strncmp(buff, "server", 6) == 0))
-		vis_mode_tmp = BATADV_VIS_TYPE_SERVER_SYNC;
-
-	if (vis_mode_tmp < 0) {
-		if (buff[count - 1] == '\n')
-			buff[count - 1] = '\0';
-
-		batadv_info(net_dev,
-			    "Invalid parameter for 'vis mode' setting received: %s\n",
-			    buff);
-		return -EINVAL;
-	}
-
-	if (atomic_read(&bat_priv->vis_mode) == vis_mode_tmp)
-		return count;
-
-	if (atomic_read(&bat_priv->vis_mode) == BATADV_VIS_TYPE_CLIENT_UPDATE)
-		old_mode =  "client";
-	else
-		old_mode = "server";
-
-	if (vis_mode_tmp == BATADV_VIS_TYPE_CLIENT_UPDATE)
-		new_mode =  "client";
-	else
-		new_mode = "server";
-
-	batadv_info(net_dev, "Changing vis mode from: %s to: %s\n", old_mode,
-		    new_mode);
-
-	atomic_set(&bat_priv->vis_mode, (unsigned int)vis_mode_tmp);
-	return count;
-}
-
 static ssize_t batadv_show_bat_algo(struct kobject *kobj,
 				    struct attribute *attr, char *buff)
 {
@@ -431,8 +362,6 @@ BATADV_ATTR_SIF_BOOL(distributed_arp_table, S_IRUGO | S_IWUSR,
 #endif
 BATADV_ATTR_SIF_BOOL(fragmentation, S_IRUGO | S_IWUSR, batadv_update_min_mtu);
 BATADV_ATTR_SIF_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL);
-static BATADV_ATTR(vis_mode, S_IRUGO | S_IWUSR, batadv_show_vis_mode,
-		   batadv_store_vis_mode);
 static BATADV_ATTR(routing_algo, S_IRUGO, batadv_show_bat_algo, NULL);
 static BATADV_ATTR(gw_mode, S_IRUGO | S_IWUSR, batadv_show_gw_mode,
 		   batadv_store_gw_mode);
@@ -463,7 +392,6 @@ static struct batadv_attribute *batadv_mesh_attrs[] = {
 #endif
 	&batadv_attr_fragmentation,
 	&batadv_attr_ap_isolation,
-	&batadv_attr_vis_mode,
 	&batadv_attr_routing_algo,
 	&batadv_attr_gw_mode,
 	&batadv_attr_orig_interval,
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index e98915ac2a66..8fbd89d167cd 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -99,7 +99,6 @@ struct batadv_hard_iface {
  * @last_seen: time when last packet from this node was received
  * @bcast_seqno_reset: time when the broadcast seqno window was reset
  * @batman_seqno_reset: time when the batman seqno window was reset
- * @flags: for now only VIS_SERVER flag
  * @capabilities: announced capabilities of this originator
  * @last_ttvn: last seen translation table version number
  * @tt_crc: CRC of the translation table
@@ -147,7 +146,6 @@ struct batadv_orig_node {
 	unsigned long last_seen;
 	unsigned long bcast_seqno_reset;
 	unsigned long batman_seqno_reset;
-	uint8_t flags;
 	uint8_t capabilities;
 	atomic_t last_ttvn;
 	uint32_t tt_crc;
@@ -461,24 +459,6 @@ struct batadv_priv_tvlv {
 	spinlock_t handler_list_lock; /* protects handler_list */
 };
 
-/**
- * struct batadv_priv_vis - per mesh interface vis data
- * @send_list: list of batadv_vis_info packets to sent
- * @hash: hash table containing vis data from other nodes in the network
- * @hash_lock: lock protecting the hash table
- * @list_lock: lock protecting my_info::recv_list
- * @work: work queue callback item for vis packet sending
- * @my_info: holds this node's vis data sent on a regular basis
- */
-struct batadv_priv_vis {
-	struct list_head send_list;
-	struct batadv_hashtable *hash;
-	spinlock_t hash_lock; /* protects hash */
-	spinlock_t list_lock; /* protects my_info::recv_list */
-	struct delayed_work work;
-	struct batadv_vis_info *my_info;
-};
-
 /**
  * struct batadv_priv_dat - per mesh interface DAT private data
  * @addr: node DAT address
@@ -536,7 +516,6 @@ struct batadv_priv_nc {
  *  enabled
  * @distributed_arp_table: bool indicating whether distributed ARP table is
  *  enabled
- * @vis_mode: vis operation: client or server (see batadv_vis_packettype)
  * @gw_mode: gateway operation: off, client or server (see batadv_gw_modes)
  * @gw_sel_class: gateway selection class (applies if gw_mode client)
  * @orig_interval: OGM broadcast interval in milliseconds
@@ -563,7 +542,6 @@ struct batadv_priv_nc {
  * @gw: gateway data
  * @tt: translation table data
  * @tvlv: type-version-length-value data
- * @vis: vis data
  * @dat: distributed arp table data
  * @network_coding: bool indicating whether network coding is enabled
  * @batadv_priv_nc: network coding data
@@ -583,7 +561,6 @@ struct batadv_priv {
 #ifdef CONFIG_BATMAN_ADV_DAT
 	atomic_t distributed_arp_table;
 #endif
-	atomic_t vis_mode;
 	atomic_t gw_mode;
 	atomic_t gw_sel_class;
 	atomic_t orig_interval;
@@ -615,7 +592,6 @@ struct batadv_priv {
 	struct batadv_priv_gw gw;
 	struct batadv_priv_tt tt;
 	struct batadv_priv_tvlv tvlv;
-	struct batadv_priv_vis vis;
 #ifdef CONFIG_BATMAN_ADV_DAT
 	struct batadv_priv_dat dat;
 #endif
@@ -909,66 +885,6 @@ struct batadv_frag_packet_list_entry {
 	struct sk_buff *skb;
 };
 
-/**
- * struct batadv_vis_info - local data for vis information
- * @first_seen: timestamp used for purging stale vis info entries
- * @recv_list: List of server-neighbors we have received this packet from. This
- *  packet should not be re-forward to them again. List elements are struct
- *  batadv_vis_recvlist_node
- * @send_list: list of packets to be forwarded
- * @refcount: number of contexts the object is used
- * @hash_entry: hlist node for batadv_priv_vis::hash
- * @bat_priv: pointer to soft_iface this orig node belongs to
- * @skb_packet: contains the vis packet
- */
-struct batadv_vis_info {
-	unsigned long first_seen;
-	struct list_head recv_list;
-	struct list_head send_list;
-	struct kref refcount;
-	struct hlist_node hash_entry;
-	struct batadv_priv *bat_priv;
-	struct sk_buff *skb_packet;
-} __packed;
-
-/**
- * struct batadv_vis_info_entry - contains link information for vis
- * @src: source MAC of the link, all zero for local TT entry
- * @dst: destination MAC of the link, client mac address for local TT entry
- * @quality: transmission quality of the link, or 0 for local TT entry
- */
-struct batadv_vis_info_entry {
-	uint8_t  src[ETH_ALEN];
-	uint8_t  dest[ETH_ALEN];
-	uint8_t  quality;
-} __packed;
-
-/**
- * struct batadv_vis_recvlist_node - list entry for batadv_vis_info::recv_list
- * @list: list node for batadv_vis_info::recv_list
- * @mac: MAC address of the originator from where the vis_info was received
- */
-struct batadv_vis_recvlist_node {
-	struct list_head list;
-	uint8_t mac[ETH_ALEN];
-};
-
-/**
- * struct batadv_vis_if_list_entry - auxiliary data for vis data generation
- * @addr: MAC address of the interface
- * @primary: true if this interface is the primary interface
- * @list: list node the interface list
- *
- * While scanning for vis-entries of a particular vis-originator
- * this list collects its interfaces to create a subgraph/cluster
- * out of them later
- */
-struct batadv_vis_if_list_entry {
-	uint8_t addr[ETH_ALEN];
-	bool primary;
-	struct hlist_node list;
-};
-
 /**
  * struct batadv_algo_ops - mesh algorithm callbacks
  * @list: list node for the batadv_algo_list
diff --git a/net/batman-adv/vis.c b/net/batman-adv/vis.c
deleted file mode 100644
index d8ea31a58457..000000000000
--- a/net/batman-adv/vis.c
+++ /dev/null
@@ -1,938 +0,0 @@
-/* Copyright (C) 2008-2013 B.A.T.M.A.N. contributors:
- *
- * Simon Wunderlich
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- */
-
-#include "main.h"
-#include "send.h"
-#include "translation-table.h"
-#include "vis.h"
-#include "soft-interface.h"
-#include "hard-interface.h"
-#include "hash.h"
-#include "originator.h"
-
-#define BATADV_MAX_VIS_PACKET_SIZE 1000
-
-/* hash class keys */
-static struct lock_class_key batadv_vis_hash_lock_class_key;
-
-/* free the info */
-static void batadv_free_info(struct kref *ref)
-{
-	struct batadv_vis_info *info;
-	struct batadv_priv *bat_priv;
-	struct batadv_vis_recvlist_node *entry, *tmp;
-
-	info = container_of(ref, struct batadv_vis_info, refcount);
-	bat_priv = info->bat_priv;
-
-	list_del_init(&info->send_list);
-	spin_lock_bh(&bat_priv->vis.list_lock);
-	list_for_each_entry_safe(entry, tmp, &info->recv_list, list) {
-		list_del(&entry->list);
-		kfree(entry);
-	}
-
-	spin_unlock_bh(&bat_priv->vis.list_lock);
-	kfree_skb(info->skb_packet);
-	kfree(info);
-}
-
-/* Compare two vis packets, used by the hashing algorithm */
-static int batadv_vis_info_cmp(const struct hlist_node *node, const void *data2)
-{
-	const struct batadv_vis_info *d1, *d2;
-	const struct batadv_vis_packet *p1, *p2;
-
-	d1 = container_of(node, struct batadv_vis_info, hash_entry);
-	d2 = data2;
-	p1 = (struct batadv_vis_packet *)d1->skb_packet->data;
-	p2 = (struct batadv_vis_packet *)d2->skb_packet->data;
-	return batadv_compare_eth(p1->vis_orig, p2->vis_orig);
-}
-
-/* hash function to choose an entry in a hash table of given size
- * hash algorithm from http://en.wikipedia.org/wiki/Hash_table
- */
-static uint32_t batadv_vis_info_choose(const void *data, uint32_t size)
-{
-	const struct batadv_vis_info *vis_info = data;
-	const struct batadv_vis_packet *packet;
-	const unsigned char *key;
-	uint32_t hash = 0;
-	size_t i;
-
-	packet = (struct batadv_vis_packet *)vis_info->skb_packet->data;
-	key = packet->vis_orig;
-	for (i = 0; i < ETH_ALEN; i++) {
-		hash += key[i];
-		hash += (hash << 10);
-		hash ^= (hash >> 6);
-	}
-
-	hash += (hash << 3);
-	hash ^= (hash >> 11);
-	hash += (hash << 15);
-
-	return hash % size;
-}
-
-static struct batadv_vis_info *
-batadv_vis_hash_find(struct batadv_priv *bat_priv, const void *data)
-{
-	struct batadv_hashtable *hash = bat_priv->vis.hash;
-	struct hlist_head *head;
-	struct batadv_vis_info *vis_info, *vis_info_tmp = NULL;
-	uint32_t index;
-
-	if (!hash)
-		return NULL;
-
-	index = batadv_vis_info_choose(data, hash->size);
-	head = &hash->table[index];
-
-	rcu_read_lock();
-	hlist_for_each_entry_rcu(vis_info, head, hash_entry) {
-		if (!batadv_vis_info_cmp(&vis_info->hash_entry, data))
-			continue;
-
-		vis_info_tmp = vis_info;
-		break;
-	}
-	rcu_read_unlock();
-
-	return vis_info_tmp;
-}
-
-/* insert interface to the list of interfaces of one originator, if it
- * does not already exist in the list
- */
-static void batadv_vis_data_insert_interface(const uint8_t *interface,
-					     struct hlist_head *if_list,
-					     bool primary)
-{
-	struct batadv_vis_if_list_entry *entry;
-
-	hlist_for_each_entry(entry, if_list, list) {
-		if (batadv_compare_eth(entry->addr, interface))
-			return;
-	}
-
-	/* it's a new address, add it to the list */
-	entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
-	if (!entry)
-		return;
-	memcpy(entry->addr, interface, ETH_ALEN);
-	entry->primary = primary;
-	hlist_add_head(&entry->list, if_list);
-}
-
-static void batadv_vis_data_read_prim_sec(struct seq_file *seq,
-					  const struct hlist_head *if_list)
-{
-	struct batadv_vis_if_list_entry *entry;
-
-	hlist_for_each_entry(entry, if_list, list) {
-		if (entry->primary)
-			seq_puts(seq, "PRIMARY, ");
-		else
-			seq_printf(seq,  "SEC %pM, ", entry->addr);
-	}
-}
-
-/* read an entry  */
-static ssize_t
-batadv_vis_data_read_entry(struct seq_file *seq,
-			   const struct batadv_vis_info_entry *entry,
-			   const uint8_t *src, bool primary)
-{
-	if (primary && entry->quality == 0)
-		return seq_printf(seq, "TT %pM, ", entry->dest);
-	else if (batadv_compare_eth(entry->src, src))
-		return seq_printf(seq, "TQ %pM %d, ", entry->dest,
-				  entry->quality);
-
-	return 0;
-}
-
-static void
-batadv_vis_data_insert_interfaces(struct hlist_head *list,
-				  struct batadv_vis_packet *packet,
-				  struct batadv_vis_info_entry *entries)
-{
-	int i;
-
-	for (i = 0; i < packet->entries; i++) {
-		if (entries[i].quality == 0)
-			continue;
-
-		if (batadv_compare_eth(entries[i].src, packet->vis_orig))
-			continue;
-
-		batadv_vis_data_insert_interface(entries[i].src, list, false);
-	}
-}
-
-static void batadv_vis_data_read_entries(struct seq_file *seq,
-					 struct hlist_head *list,
-					 struct batadv_vis_packet *packet,
-					 struct batadv_vis_info_entry *entries)
-{
-	int i;
-	struct batadv_vis_if_list_entry *entry;
-
-	hlist_for_each_entry(entry, list, list) {
-		seq_printf(seq, "%pM,", entry->addr);
-
-		for (i = 0; i < packet->entries; i++)
-			batadv_vis_data_read_entry(seq, &entries[i],
-						   entry->addr, entry->primary);
-
-		/* add primary/secondary records */
-		if (batadv_compare_eth(entry->addr, packet->vis_orig))
-			batadv_vis_data_read_prim_sec(seq, list);
-
-		seq_puts(seq, "\n");
-	}
-}
-
-static void batadv_vis_seq_print_text_bucket(struct seq_file *seq,
-					     const struct hlist_head *head)
-{
-	struct batadv_vis_info *info;
-	struct batadv_vis_packet *packet;
-	uint8_t *entries_pos;
-	struct batadv_vis_info_entry *entries;
-	struct batadv_vis_if_list_entry *entry;
-	struct hlist_node *n;
-
-	HLIST_HEAD(vis_if_list);
-
-	hlist_for_each_entry_rcu(info, head, hash_entry) {
-		packet = (struct batadv_vis_packet *)info->skb_packet->data;
-		entries_pos = (uint8_t *)packet + sizeof(*packet);
-		entries = (struct batadv_vis_info_entry *)entries_pos;
-
-		batadv_vis_data_insert_interface(packet->vis_orig, &vis_if_list,
-						 true);
-		batadv_vis_data_insert_interfaces(&vis_if_list, packet,
-						  entries);
-		batadv_vis_data_read_entries(seq, &vis_if_list, packet,
-					     entries);
-
-		hlist_for_each_entry_safe(entry, n, &vis_if_list, list) {
-			hlist_del(&entry->list);
-			kfree(entry);
-		}
-	}
-}
-
-int batadv_vis_seq_print_text(struct seq_file *seq, void *offset)
-{
-	struct batadv_hard_iface *primary_if;
-	struct hlist_head *head;
-	struct net_device *net_dev = (struct net_device *)seq->private;
-	struct batadv_priv *bat_priv = netdev_priv(net_dev);
-	struct batadv_hashtable *hash = bat_priv->vis.hash;
-	uint32_t i;
-	int ret = 0;
-	int vis_server = atomic_read(&bat_priv->vis_mode);
-
-	primary_if = batadv_primary_if_get_selected(bat_priv);
-	if (!primary_if)
-		goto out;
-
-	if (vis_server == BATADV_VIS_TYPE_CLIENT_UPDATE)
-		goto out;
-
-	spin_lock_bh(&bat_priv->vis.hash_lock);
-	for (i = 0; i < hash->size; i++) {
-		head = &hash->table[i];
-		batadv_vis_seq_print_text_bucket(seq, head);
-	}
-	spin_unlock_bh(&bat_priv->vis.hash_lock);
-
-out:
-	if (primary_if)
-		batadv_hardif_free_ref(primary_if);
-	return ret;
-}
-
-/* add the info packet to the send list, if it was not
- * already linked in.
- */
-static void batadv_send_list_add(struct batadv_priv *bat_priv,
-				 struct batadv_vis_info *info)
-{
-	if (list_empty(&info->send_list)) {
-		kref_get(&info->refcount);
-		list_add_tail(&info->send_list, &bat_priv->vis.send_list);
-	}
-}
-
-/* delete the info packet from the send list, if it was
- * linked in.
- */
-static void batadv_send_list_del(struct batadv_vis_info *info)
-{
-	if (!list_empty(&info->send_list)) {
-		list_del_init(&info->send_list);
-		kref_put(&info->refcount, batadv_free_info);
-	}
-}
-
-/* tries to add one entry to the receive list. */
-static void batadv_recv_list_add(struct batadv_priv *bat_priv,
-				 struct list_head *recv_list, const char *mac)
-{
-	struct batadv_vis_recvlist_node *entry;
-
-	entry = kmalloc(sizeof(*entry), GFP_ATOMIC);
-	if (!entry)
-		return;
-
-	memcpy(entry->mac, mac, ETH_ALEN);
-	spin_lock_bh(&bat_priv->vis.list_lock);
-	list_add_tail(&entry->list, recv_list);
-	spin_unlock_bh(&bat_priv->vis.list_lock);
-}
-
-/* returns 1 if this mac is in the recv_list */
-static int batadv_recv_list_is_in(struct batadv_priv *bat_priv,
-				  const struct list_head *recv_list,
-				  const char *mac)
-{
-	const struct batadv_vis_recvlist_node *entry;
-
-	spin_lock_bh(&bat_priv->vis.list_lock);
-	list_for_each_entry(entry, recv_list, list) {
-		if (batadv_compare_eth(entry->mac, mac)) {
-			spin_unlock_bh(&bat_priv->vis.list_lock);
-			return 1;
-		}
-	}
-	spin_unlock_bh(&bat_priv->vis.list_lock);
-	return 0;
-}
-
-/* try to add the packet to the vis_hash. return NULL if invalid (e.g. too old,
- * broken.. ).	vis hash must be locked outside.  is_new is set when the packet
- * is newer than old entries in the hash.
- */
-static struct batadv_vis_info *
-batadv_add_packet(struct batadv_priv *bat_priv,
-		  struct batadv_vis_packet *vis_packet, int vis_info_len,
-		  int *is_new, int make_broadcast)
-{
-	struct batadv_vis_info *info, *old_info;
-	struct batadv_vis_packet *search_packet, *old_packet;
-	struct batadv_vis_info search_elem;
-	struct batadv_vis_packet *packet;
-	struct sk_buff *tmp_skb;
-	int hash_added;
-	size_t len;
-	size_t max_entries;
-
-	*is_new = 0;
-	/* sanity check */
-	if (!bat_priv->vis.hash)
-		return NULL;
-
-	/* see if the packet is already in vis_hash */
-	search_elem.skb_packet = dev_alloc_skb(sizeof(*search_packet));
-	if (!search_elem.skb_packet)
-		return NULL;
-	len = sizeof(*search_packet);
-	tmp_skb = search_elem.skb_packet;
-	search_packet = (struct batadv_vis_packet *)skb_put(tmp_skb, len);
-
-	memcpy(search_packet->vis_orig, vis_packet->vis_orig, ETH_ALEN);
-	old_info = batadv_vis_hash_find(bat_priv, &search_elem);
-	kfree_skb(search_elem.skb_packet);
-
-	if (old_info) {
-		tmp_skb = old_info->skb_packet;
-		old_packet = (struct batadv_vis_packet *)tmp_skb->data;
-		if (!batadv_seq_after(ntohl(vis_packet->seqno),
-				      ntohl(old_packet->seqno))) {
-			if (old_packet->seqno == vis_packet->seqno) {
-				batadv_recv_list_add(bat_priv,
-						     &old_info->recv_list,
-						     vis_packet->sender_orig);
-				return old_info;
-			} else {
-				/* newer packet is already in hash. */
-				return NULL;
-			}
-		}
-		/* remove old entry */
-		batadv_hash_remove(bat_priv->vis.hash, batadv_vis_info_cmp,
-				   batadv_vis_info_choose, old_info);
-		batadv_send_list_del(old_info);
-		kref_put(&old_info->refcount, batadv_free_info);
-	}
-
-	info = kmalloc(sizeof(*info), GFP_ATOMIC);
-	if (!info)
-		return NULL;
-
-	len = sizeof(*packet) + vis_info_len;
-	info->skb_packet = netdev_alloc_skb_ip_align(NULL, len + ETH_HLEN);
-	if (!info->skb_packet) {
-		kfree(info);
-		return NULL;
-	}
-	info->skb_packet->priority = TC_PRIO_CONTROL;
-	skb_reserve(info->skb_packet, ETH_HLEN);
-	packet = (struct batadv_vis_packet *)skb_put(info->skb_packet, len);
-
-	kref_init(&info->refcount);
-	INIT_LIST_HEAD(&info->send_list);
-	INIT_LIST_HEAD(&info->recv_list);
-	info->first_seen = jiffies;
-	info->bat_priv = bat_priv;
-	memcpy(packet, vis_packet, len);
-
-	/* initialize and add new packet. */
-	*is_new = 1;
-
-	/* Make it a broadcast packet, if required */
-	if (make_broadcast)
-		memcpy(packet->target_orig, batadv_broadcast_addr, ETH_ALEN);
-
-	/* repair if entries is longer than packet. */
-	max_entries = vis_info_len / sizeof(struct batadv_vis_info_entry);
-	if (packet->entries > max_entries)
-		packet->entries = max_entries;
-
-	batadv_recv_list_add(bat_priv, &info->recv_list, packet->sender_orig);
-
-	/* try to add it */
-	hash_added = batadv_hash_add(bat_priv->vis.hash, batadv_vis_info_cmp,
-				     batadv_vis_info_choose, info,
-				     &info->hash_entry);
-	if (hash_added != 0) {
-		/* did not work (for some reason) */
-		kref_put(&info->refcount, batadv_free_info);
-		info = NULL;
-	}
-
-	return info;
-}
-
-/* handle the server sync packet, forward if needed. */
-void batadv_receive_server_sync_packet(struct batadv_priv *bat_priv,
-				       struct batadv_vis_packet *vis_packet,
-				       int vis_info_len)
-{
-	struct batadv_vis_info *info;
-	int is_new, make_broadcast;
-	int vis_server = atomic_read(&bat_priv->vis_mode);
-
-	make_broadcast = (vis_server == BATADV_VIS_TYPE_SERVER_SYNC);
-
-	spin_lock_bh(&bat_priv->vis.hash_lock);
-	info = batadv_add_packet(bat_priv, vis_packet, vis_info_len,
-				 &is_new, make_broadcast);
-	if (!info)
-		goto end;
-
-	/* only if we are server ourselves and packet is newer than the one in
-	 * hash.
-	 */
-	if (vis_server == BATADV_VIS_TYPE_SERVER_SYNC && is_new)
-		batadv_send_list_add(bat_priv, info);
-end:
-	spin_unlock_bh(&bat_priv->vis.hash_lock);
-}
-
-/* handle an incoming client update packet and schedule forward if needed. */
-void batadv_receive_client_update_packet(struct batadv_priv *bat_priv,
-					 struct batadv_vis_packet *vis_packet,
-					 int vis_info_len)
-{
-	struct batadv_vis_info *info;
-	struct batadv_vis_packet *packet;
-	int is_new;
-	int vis_server = atomic_read(&bat_priv->vis_mode);
-	int are_target = 0;
-
-	/* clients shall not broadcast. */
-	if (is_broadcast_ether_addr(vis_packet->target_orig))
-		return;
-
-	/* Are we the target for this VIS packet? */
-	if (vis_server == BATADV_VIS_TYPE_SERVER_SYNC	&&
-	    batadv_is_my_mac(bat_priv, vis_packet->target_orig))
-		are_target = 1;
-
-	spin_lock_bh(&bat_priv->vis.hash_lock);
-	info = batadv_add_packet(bat_priv, vis_packet, vis_info_len,
-				 &is_new, are_target);
-
-	if (!info)
-		goto end;
-	/* note that outdated packets will be dropped at this point. */
-
-	packet = (struct batadv_vis_packet *)info->skb_packet->data;
-
-	/* send only if we're the target server or ... */
-	if (are_target && is_new) {
-		packet->vis_type = BATADV_VIS_TYPE_SERVER_SYNC;	/* upgrade! */
-		batadv_send_list_add(bat_priv, info);
-
-		/* ... we're not the recipient (and thus need to forward). */
-	} else if (!batadv_is_my_mac(bat_priv, packet->target_orig)) {
-		batadv_send_list_add(bat_priv, info);
-	}
-
-end:
-	spin_unlock_bh(&bat_priv->vis.hash_lock);
-}
-
-/* Walk the originators and find the VIS server with the best tq. Set the packet
- * address to its address and return the best_tq.
- *
- * Must be called with the originator hash locked
- */
-static int batadv_find_best_vis_server(struct batadv_priv *bat_priv,
-				       struct batadv_vis_info *info)
-{
-	struct batadv_hashtable *hash = bat_priv->orig_hash;
-	struct batadv_neigh_node *router;
-	struct hlist_head *head;
-	struct batadv_orig_node *orig_node;
-	struct batadv_vis_packet *packet;
-	int best_tq = -1;
-	uint32_t i;
-
-	packet = (struct batadv_vis_packet *)info->skb_packet->data;
-
-	for (i = 0; i < hash->size; i++) {
-		head = &hash->table[i];
-
-		rcu_read_lock();
-		hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
-			router = batadv_orig_node_get_router(orig_node);
-			if (!router)
-				continue;
-
-			if ((orig_node->flags & BATADV_VIS_SERVER) &&
-			    (router->tq_avg > best_tq)) {
-				best_tq = router->tq_avg;
-				memcpy(packet->target_orig, orig_node->orig,
-				       ETH_ALEN);
-			}
-			batadv_neigh_node_free_ref(router);
-		}
-		rcu_read_unlock();
-	}
-
-	return best_tq;
-}
-
-/* Return true if the vis packet is full. */
-static bool batadv_vis_packet_full(const struct batadv_vis_info *info)
-{
-	const struct batadv_vis_packet *packet;
-	size_t num;
-
-	packet = (struct batadv_vis_packet *)info->skb_packet->data;
-	num = BATADV_MAX_VIS_PACKET_SIZE / sizeof(struct batadv_vis_info_entry);
-
-	if (num < packet->entries + 1)
-		return true;
-	return false;
-}
-
-/* generates a packet of own vis data,
- * returns 0 on success, -1 if no packet could be generated
- */
-static int batadv_generate_vis_packet(struct batadv_priv *bat_priv)
-{
-	struct batadv_hashtable *hash = bat_priv->orig_hash;
-	struct hlist_head *head;
-	struct batadv_orig_node *orig_node;
-	struct batadv_neigh_node *router;
-	struct batadv_vis_info *info = bat_priv->vis.my_info;
-	struct batadv_vis_packet *packet;
-	struct batadv_vis_info_entry *entry;
-	struct batadv_tt_common_entry *tt_common_entry;
-	uint8_t *packet_pos;
-	int best_tq = -1;
-	uint32_t i;
-
-	info->first_seen = jiffies;
-	packet = (struct batadv_vis_packet *)info->skb_packet->data;
-	packet->vis_type = atomic_read(&bat_priv->vis_mode);
-
-	memcpy(packet->target_orig, batadv_broadcast_addr, ETH_ALEN);
-	packet->header.ttl = BATADV_TTL;
-	packet->seqno = htonl(ntohl(packet->seqno) + 1);
-	packet->entries = 0;
-	packet->reserved = 0;
-	skb_trim(info->skb_packet, sizeof(*packet));
-
-	if (packet->vis_type == BATADV_VIS_TYPE_CLIENT_UPDATE) {
-		best_tq = batadv_find_best_vis_server(bat_priv, info);
-
-		if (best_tq < 0)
-			return best_tq;
-	}
-
-	for (i = 0; i < hash->size; i++) {
-		head = &hash->table[i];
-
-		rcu_read_lock();
-		hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
-			router = batadv_orig_node_get_router(orig_node);
-			if (!router)
-				continue;
-
-			if (!batadv_compare_eth(router->addr, orig_node->orig))
-				goto next;
-
-			if (router->if_incoming->if_status != BATADV_IF_ACTIVE)
-				goto next;
-
-			if (router->tq_avg < 1)
-				goto next;
-
-			/* fill one entry into buffer. */
-			packet_pos = skb_put(info->skb_packet, sizeof(*entry));
-			entry = (struct batadv_vis_info_entry *)packet_pos;
-			memcpy(entry->src,
-			       router->if_incoming->net_dev->dev_addr,
-			       ETH_ALEN);
-			memcpy(entry->dest, orig_node->orig, ETH_ALEN);
-			entry->quality = router->tq_avg;
-			packet->entries++;
-
-next:
-			batadv_neigh_node_free_ref(router);
-
-			if (batadv_vis_packet_full(info))
-				goto unlock;
-		}
-		rcu_read_unlock();
-	}
-
-	hash = bat_priv->tt.local_hash;
-
-	for (i = 0; i < hash->size; i++) {
-		head = &hash->table[i];
-
-		rcu_read_lock();
-		hlist_for_each_entry_rcu(tt_common_entry, head,
-					 hash_entry) {
-			packet_pos = skb_put(info->skb_packet, sizeof(*entry));
-			entry = (struct batadv_vis_info_entry *)packet_pos;
-			memset(entry->src, 0, ETH_ALEN);
-			memcpy(entry->dest, tt_common_entry->addr, ETH_ALEN);
-			entry->quality = 0; /* 0 means TT */
-			packet->entries++;
-
-			if (batadv_vis_packet_full(info))
-				goto unlock;
-		}
-		rcu_read_unlock();
-	}
-
-	return 0;
-
-unlock:
-	rcu_read_unlock();
-	return 0;
-}
-
-/* free old vis packets. Must be called with this vis_hash_lock
- * held
- */
-static void batadv_purge_vis_packets(struct batadv_priv *bat_priv)
-{
-	uint32_t i;
-	struct batadv_hashtable *hash = bat_priv->vis.hash;
-	struct hlist_node *node_tmp;
-	struct hlist_head *head;
-	struct batadv_vis_info *info;
-
-	for (i = 0; i < hash->size; i++) {
-		head = &hash->table[i];
-
-		hlist_for_each_entry_safe(info, node_tmp,
-					  head, hash_entry) {
-			/* never purge own data. */
-			if (info == bat_priv->vis.my_info)
-				continue;
-
-			if (batadv_has_timed_out(info->first_seen,
-						 BATADV_VIS_TIMEOUT)) {
-				hlist_del(&info->hash_entry);
-				batadv_send_list_del(info);
-				kref_put(&info->refcount, batadv_free_info);
-			}
-		}
-	}
-}
-
-static void batadv_broadcast_vis_packet(struct batadv_priv *bat_priv,
-					struct batadv_vis_info *info)
-{
-	struct batadv_hashtable *hash = bat_priv->orig_hash;
-	struct hlist_head *head;
-	struct batadv_orig_node *orig_node;
-	struct batadv_vis_packet *packet;
-	struct sk_buff *skb;
-	uint32_t i, res;
-
-
-	packet = (struct batadv_vis_packet *)info->skb_packet->data;
-
-	/* send to all routers in range. */
-	for (i = 0; i < hash->size; i++) {
-		head = &hash->table[i];
-
-		rcu_read_lock();
-		hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
-			/* if it's a vis server and reachable, send it. */
-			if (!(orig_node->flags & BATADV_VIS_SERVER))
-				continue;
-
-			/* don't send it if we already received the packet from
-			 * this node.
-			 */
-			if (batadv_recv_list_is_in(bat_priv, &info->recv_list,
-						   orig_node->orig))
-				continue;
-
-			memcpy(packet->target_orig, orig_node->orig, ETH_ALEN);
-			skb = skb_clone(info->skb_packet, GFP_ATOMIC);
-			if (!skb)
-				continue;
-
-			res = batadv_send_skb_to_orig(skb, orig_node, NULL);
-			if (res == NET_XMIT_DROP)
-				kfree_skb(skb);
-		}
-		rcu_read_unlock();
-	}
-}
-
-static void batadv_unicast_vis_packet(struct batadv_priv *bat_priv,
-				      struct batadv_vis_info *info)
-{
-	struct batadv_orig_node *orig_node;
-	struct sk_buff *skb;
-	struct batadv_vis_packet *packet;
-
-	packet = (struct batadv_vis_packet *)info->skb_packet->data;
-
-	orig_node = batadv_orig_hash_find(bat_priv, packet->target_orig);
-	if (!orig_node)
-		goto out;
-
-	skb = skb_clone(info->skb_packet, GFP_ATOMIC);
-	if (!skb)
-		goto out;
-
-	if (batadv_send_skb_to_orig(skb, orig_node, NULL) == NET_XMIT_DROP)
-		kfree_skb(skb);
-
-out:
-	if (orig_node)
-		batadv_orig_node_free_ref(orig_node);
-}
-
-/* only send one vis packet. called from batadv_send_vis_packets() */
-static void batadv_send_vis_packet(struct batadv_priv *bat_priv,
-				   struct batadv_vis_info *info)
-{
-	struct batadv_hard_iface *primary_if;
-	struct batadv_vis_packet *packet;
-
-	primary_if = batadv_primary_if_get_selected(bat_priv);
-	if (!primary_if)
-		goto out;
-
-	packet = (struct batadv_vis_packet *)info->skb_packet->data;
-	if (packet->header.ttl < 2) {
-		pr_debug("Error - can't send vis packet: ttl exceeded\n");
-		goto out;
-	}
-
-	memcpy(packet->sender_orig, primary_if->net_dev->dev_addr, ETH_ALEN);
-	packet->header.ttl--;
-
-	if (is_broadcast_ether_addr(packet->target_orig))
-		batadv_broadcast_vis_packet(bat_priv, info);
-	else
-		batadv_unicast_vis_packet(bat_priv, info);
-	packet->header.ttl++; /* restore TTL */
-
-out:
-	if (primary_if)
-		batadv_hardif_free_ref(primary_if);
-}
-
-/* called from timer; send (and maybe generate) vis packet. */
-static void batadv_send_vis_packets(struct work_struct *work)
-{
-	struct delayed_work *delayed_work;
-	struct batadv_priv *bat_priv;
-	struct batadv_priv_vis *priv_vis;
-	struct batadv_vis_info *info;
-
-	delayed_work = container_of(work, struct delayed_work, work);
-	priv_vis = container_of(delayed_work, struct batadv_priv_vis, work);
-	bat_priv = container_of(priv_vis, struct batadv_priv, vis);
-	spin_lock_bh(&bat_priv->vis.hash_lock);
-	batadv_purge_vis_packets(bat_priv);
-
-	if (batadv_generate_vis_packet(bat_priv) == 0) {
-		/* schedule if generation was successful */
-		batadv_send_list_add(bat_priv, bat_priv->vis.my_info);
-	}
-
-	while (!list_empty(&bat_priv->vis.send_list)) {
-		info = list_first_entry(&bat_priv->vis.send_list,
-					typeof(*info), send_list);
-
-		kref_get(&info->refcount);
-		spin_unlock_bh(&bat_priv->vis.hash_lock);
-
-		batadv_send_vis_packet(bat_priv, info);
-
-		spin_lock_bh(&bat_priv->vis.hash_lock);
-		batadv_send_list_del(info);
-		kref_put(&info->refcount, batadv_free_info);
-	}
-	spin_unlock_bh(&bat_priv->vis.hash_lock);
-
-	queue_delayed_work(batadv_event_workqueue, &bat_priv->vis.work,
-			   msecs_to_jiffies(BATADV_VIS_INTERVAL));
-}
-
-/* init the vis server. this may only be called when if_list is already
- * initialized (e.g. bat0 is initialized, interfaces have been added)
- */
-int batadv_vis_init(struct batadv_priv *bat_priv)
-{
-	struct batadv_vis_packet *packet;
-	int hash_added;
-	unsigned int len;
-	unsigned long first_seen;
-	struct sk_buff *tmp_skb;
-
-	if (bat_priv->vis.hash)
-		return 0;
-
-	spin_lock_bh(&bat_priv->vis.hash_lock);
-
-	bat_priv->vis.hash = batadv_hash_new(256);
-	if (!bat_priv->vis.hash) {
-		pr_err("Can't initialize vis_hash\n");
-		goto err;
-	}
-
-	batadv_hash_set_lock_class(bat_priv->vis.hash,
-				   &batadv_vis_hash_lock_class_key);
-
-	bat_priv->vis.my_info = kmalloc(BATADV_MAX_VIS_PACKET_SIZE, GFP_ATOMIC);
-	if (!bat_priv->vis.my_info)
-		goto err;
-
-	len = sizeof(*packet) + BATADV_MAX_VIS_PACKET_SIZE + ETH_HLEN;
-	bat_priv->vis.my_info->skb_packet = netdev_alloc_skb_ip_align(NULL,
-								      len);
-	if (!bat_priv->vis.my_info->skb_packet)
-		goto free_info;
-
-	bat_priv->vis.my_info->skb_packet->priority = TC_PRIO_CONTROL;
-	skb_reserve(bat_priv->vis.my_info->skb_packet, ETH_HLEN);
-	tmp_skb = bat_priv->vis.my_info->skb_packet;
-	packet = (struct batadv_vis_packet *)skb_put(tmp_skb, sizeof(*packet));
-
-	/* prefill the vis info */
-	first_seen = jiffies - msecs_to_jiffies(BATADV_VIS_INTERVAL);
-	bat_priv->vis.my_info->first_seen = first_seen;
-	INIT_LIST_HEAD(&bat_priv->vis.my_info->recv_list);
-	INIT_LIST_HEAD(&bat_priv->vis.my_info->send_list);
-	kref_init(&bat_priv->vis.my_info->refcount);
-	bat_priv->vis.my_info->bat_priv = bat_priv;
-	packet->header.version = BATADV_COMPAT_VERSION;
-	packet->header.packet_type = BATADV_VIS;
-	packet->header.ttl = BATADV_TTL;
-	packet->seqno = 0;
-	packet->reserved = 0;
-	packet->entries = 0;
-
-	INIT_LIST_HEAD(&bat_priv->vis.send_list);
-
-	hash_added = batadv_hash_add(bat_priv->vis.hash, batadv_vis_info_cmp,
-				     batadv_vis_info_choose,
-				     bat_priv->vis.my_info,
-				     &bat_priv->vis.my_info->hash_entry);
-	if (hash_added != 0) {
-		pr_err("Can't add own vis packet into hash\n");
-		/* not in hash, need to remove it manually. */
-		kref_put(&bat_priv->vis.my_info->refcount, batadv_free_info);
-		goto err;
-	}
-
-	spin_unlock_bh(&bat_priv->vis.hash_lock);
-
-	INIT_DELAYED_WORK(&bat_priv->vis.work, batadv_send_vis_packets);
-	queue_delayed_work(batadv_event_workqueue, &bat_priv->vis.work,
-			   msecs_to_jiffies(BATADV_VIS_INTERVAL));
-
-	return 0;
-
-free_info:
-	kfree(bat_priv->vis.my_info);
-	bat_priv->vis.my_info = NULL;
-err:
-	spin_unlock_bh(&bat_priv->vis.hash_lock);
-	batadv_vis_quit(bat_priv);
-	return -ENOMEM;
-}
-
-/* Decrease the reference count on a hash item info */
-static void batadv_free_info_ref(struct hlist_node *node, void *arg)
-{
-	struct batadv_vis_info *info;
-
-	info = container_of(node, struct batadv_vis_info, hash_entry);
-	batadv_send_list_del(info);
-	kref_put(&info->refcount, batadv_free_info);
-}
-
-/* shutdown vis-server */
-void batadv_vis_quit(struct batadv_priv *bat_priv)
-{
-	if (!bat_priv->vis.hash)
-		return;
-
-	cancel_delayed_work_sync(&bat_priv->vis.work);
-
-	spin_lock_bh(&bat_priv->vis.hash_lock);
-	/* properly remove, kill timers ... */
-	batadv_hash_delete(bat_priv->vis.hash, batadv_free_info_ref, NULL);
-	bat_priv->vis.hash = NULL;
-	bat_priv->vis.my_info = NULL;
-	spin_unlock_bh(&bat_priv->vis.hash_lock);
-}
diff --git a/net/batman-adv/vis.h b/net/batman-adv/vis.h
deleted file mode 100644
index ad92b0e3c230..000000000000
--- a/net/batman-adv/vis.h
+++ /dev/null
@@ -1,36 +0,0 @@
-/* Copyright (C) 2008-2013 B.A.T.M.A.N. contributors:
- *
- * Simon Wunderlich, Marek Lindner
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- */
-
-#ifndef _NET_BATMAN_ADV_VIS_H_
-#define _NET_BATMAN_ADV_VIS_H_
-
-/* timeout of vis packets in milliseconds */
-#define BATADV_VIS_TIMEOUT		200000
-
-int batadv_vis_seq_print_text(struct seq_file *seq, void *offset);
-void batadv_receive_server_sync_packet(struct batadv_priv *bat_priv,
-				       struct batadv_vis_packet *vis_packet,
-				       int vis_info_len);
-void batadv_receive_client_update_packet(struct batadv_priv *bat_priv,
-					 struct batadv_vis_packet *vis_packet,
-					 int vis_info_len);
-int batadv_vis_init(struct batadv_priv *bat_priv);
-void batadv_vis_quit(struct batadv_priv *bat_priv);
-
-#endif /* _NET_BATMAN_ADV_VIS_H_ */
-- 
cgit 


From 80067c8320aebab6d740e07be6ecf3dd04787f60 Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Thu, 25 Apr 2013 10:37:22 +0200
Subject: batman-adv: add build check macros for packet member offset

Since we removed the __packed from most of the packets, we should
make sure that the offset generated by the compiler are correct for
sent/received data.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/main.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index 43dc92e79a76..b22368e66895 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -393,6 +393,14 @@ static void batadv_recv_handler_init(void)
 	for (i = 0; i < ARRAY_SIZE(batadv_rx_handler); i++)
 		batadv_rx_handler[i] = batadv_recv_unhandled_packet;
 
+	/* compile time checks for struct member offsets */
+	BUILD_BUG_ON(offsetof(struct batadv_unicast_4addr_packet, src) != 10);
+	BUILD_BUG_ON(offsetof(struct batadv_unicast_packet, dest) != 4);
+	BUILD_BUG_ON(offsetof(struct batadv_unicast_frag_packet, dest) != 4);
+	BUILD_BUG_ON(offsetof(struct batadv_unicast_tvlv_packet, dst) != 4);
+	BUILD_BUG_ON(offsetof(struct batadv_icmp_packet, dst) != 4);
+	BUILD_BUG_ON(offsetof(struct batadv_icmp_packet_rr, dst) != 4);
+
 	/* batman icmp packet */
 	batadv_rx_handler[BATADV_ICMP] = batadv_recv_icmp_packet;
 	/* unicast with 4 addresses packet */
-- 
cgit 


From a1f1ac5c4d045a1adc6662346733a6db3aee5a9d Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Thu, 25 Apr 2013 10:37:23 +0200
Subject: batman-adv: reorder packet types

Reordering the packet type numbers allows us to handle unicast
packets in a general way - even if we don't know the specific packet
type, we can still forward it. There was already code handling
this for a couple of unicast packets, and this is the more
generalized version to do that.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/main.c    | 20 +++++++++++++++-----
 net/batman-adv/packet.h  | 31 +++++++++++++++++++++++--------
 net/batman-adv/routing.c | 28 ++++++++++++++++++++++++++++
 net/batman-adv/routing.h |  2 ++
 4 files changed, 68 insertions(+), 13 deletions(-)

diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index b22368e66895..8b195e63e70e 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -393,6 +393,9 @@ static void batadv_recv_handler_init(void)
 	for (i = 0; i < ARRAY_SIZE(batadv_rx_handler); i++)
 		batadv_rx_handler[i] = batadv_recv_unhandled_packet;
 
+	for (i = BATADV_UNICAST_MIN; i <= BATADV_UNICAST_MAX; i++)
+		batadv_rx_handler[i] = batadv_recv_unhandled_unicast_packet;
+
 	/* compile time checks for struct member offsets */
 	BUILD_BUG_ON(offsetof(struct batadv_unicast_4addr_packet, src) != 10);
 	BUILD_BUG_ON(offsetof(struct batadv_unicast_packet, dest) != 4);
@@ -401,18 +404,20 @@ static void batadv_recv_handler_init(void)
 	BUILD_BUG_ON(offsetof(struct batadv_icmp_packet, dst) != 4);
 	BUILD_BUG_ON(offsetof(struct batadv_icmp_packet_rr, dst) != 4);
 
-	/* batman icmp packet */
-	batadv_rx_handler[BATADV_ICMP] = batadv_recv_icmp_packet;
+	/* broadcast packet */
+	batadv_rx_handler[BATADV_BCAST] = batadv_recv_bcast_packet;
+
+	/* unicast packets ... */
 	/* unicast with 4 addresses packet */
 	batadv_rx_handler[BATADV_UNICAST_4ADDR] = batadv_recv_unicast_packet;
 	/* unicast packet */
 	batadv_rx_handler[BATADV_UNICAST] = batadv_recv_unicast_packet;
 	/* fragmented unicast packet */
 	batadv_rx_handler[BATADV_UNICAST_FRAG] = batadv_recv_ucast_frag_packet;
-	/* broadcast packet */
-	batadv_rx_handler[BATADV_BCAST] = batadv_recv_bcast_packet;
 	/* unicast tvlv packet */
 	batadv_rx_handler[BATADV_UNICAST_TVLV] = batadv_recv_unicast_tvlv;
+	/* batman icmp packet */
+	batadv_rx_handler[BATADV_ICMP] = batadv_recv_icmp_packet;
 }
 
 int
@@ -420,7 +425,12 @@ batadv_recv_handler_register(uint8_t packet_type,
 			     int (*recv_handler)(struct sk_buff *,
 						 struct batadv_hard_iface *))
 {
-	if (batadv_rx_handler[packet_type] != &batadv_recv_unhandled_packet)
+	int (*curr)(struct sk_buff *,
+		    struct batadv_hard_iface *);
+	curr = batadv_rx_handler[packet_type];
+
+	if ((curr != batadv_recv_unhandled_packet) &&
+	    (curr != batadv_recv_unhandled_unicast_packet))
 		return -EBUSY;
 
 	batadv_rx_handler[packet_type] = recv_handler;
diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index 87fcf2e7883c..f02dbb1892dd 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -22,17 +22,32 @@
 
 /**
  * enum batadv_packettype - types for batman-adv encapsulated packets
+ * @BATADV_IV_OGM: originator messages for B.A.T.M.A.N. IV
+ * @BATADV_BCAST: broadcast packets carrying broadcast payload
+ * @BATADV_CODED: network coded packets
+ *
+ * @BATADV_UNICAST: unicast packets carrying unicast payload traffic
+ * @BATADV_UNICAST_FRAG: unicast packets carrying a fragment of the original
+ *     payload packet
+ * @BATADV_UNICAST_4ADDR: unicast packet including the originator address of
+ *     the sender
+ * @BATADV_ICMP: unicast packet like IP ICMP used for ping or traceroute
  * @BATADV_UNICAST_TVLV: unicast packet carrying TVLV containers
  */
 enum batadv_packettype {
-	BATADV_IV_OGM		= 0x01,
-	BATADV_ICMP		= 0x02,
-	BATADV_UNICAST		= 0x03,
-	BATADV_BCAST		= 0x04,
-	BATADV_UNICAST_FRAG	= 0x06,
-	BATADV_UNICAST_4ADDR	= 0x09,
-	BATADV_CODED		= 0x0a,
-	BATADV_UNICAST_TVLV	= 0x0b,
+	/* 0x00 - 0x3f: local packets or special rules for handling */
+	BATADV_IV_OGM           = 0x00,
+	BATADV_BCAST            = 0x01,
+	BATADV_CODED            = 0x02,
+	/* 0x40 - 0x7f: unicast */
+#define BATADV_UNICAST_MIN     0x40
+	BATADV_UNICAST          = 0x40,
+	BATADV_UNICAST_FRAG     = 0x41,
+	BATADV_UNICAST_4ADDR    = 0x42,
+	BATADV_ICMP             = 0x43,
+	BATADV_UNICAST_TVLV     = 0x44,
+#define BATADV_UNICAST_MAX     0x7f
+	/* 0x80 - 0xff: reserved */
 };
 
 /**
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 2a9318bd9026..457dfef9c5fc 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -911,6 +911,34 @@ static int batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
 	return 1;
 }
 
+/**
+ * batadv_recv_unhandled_unicast_packet - receive and process packets which
+ *	are in the unicast number space but not yet known to the implementation
+ * @skb: unicast tvlv packet to process
+ * @recv_if: pointer to interface this packet was received on
+ *
+ * Returns NET_RX_SUCCESS if the packet has been consumed or NET_RX_DROP
+ * otherwise.
+ */
+int batadv_recv_unhandled_unicast_packet(struct sk_buff *skb,
+					 struct batadv_hard_iface *recv_if)
+{
+	struct batadv_unicast_packet *unicast_packet;
+	struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
+	int check, hdr_size = sizeof(*unicast_packet);
+
+	check = batadv_check_unicast_packet(bat_priv, skb, hdr_size);
+	if (check < 0)
+		return NET_RX_DROP;
+
+	/* we don't know about this type, drop it. */
+	unicast_packet = (struct batadv_unicast_packet *)skb->data;
+	if (batadv_is_my_mac(bat_priv, unicast_packet->dest))
+		return NET_RX_DROP;
+
+	return batadv_route_unicast_packet(skb, recv_if);
+}
+
 int batadv_recv_unicast_packet(struct sk_buff *skb,
 			       struct batadv_hard_iface *recv_if)
 {
diff --git a/net/batman-adv/routing.h b/net/batman-adv/routing.h
index b3f53d492b3c..ea15fa6302ad 100644
--- a/net/batman-adv/routing.h
+++ b/net/batman-adv/routing.h
@@ -40,6 +40,8 @@ int batadv_recv_roam_adv(struct sk_buff *skb,
 			 struct batadv_hard_iface *recv_if);
 int batadv_recv_unicast_tvlv(struct sk_buff *skb,
 			     struct batadv_hard_iface *recv_if);
+int batadv_recv_unhandled_unicast_packet(struct sk_buff *skb,
+					 struct batadv_hard_iface *recv_if);
 struct batadv_neigh_node *
 batadv_find_router(struct batadv_priv *bat_priv,
 		   struct batadv_orig_node *orig_node,
-- 
cgit 


From 9284a47e8bd7d19fc1230cc8d5982820d357c3ed Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Thu, 25 Apr 2013 10:37:24 +0200
Subject: batman-adv: remove packed from batadv_ogm_packet

As we decreased the struct size from 26 to 24 byte, we can remove
__packed as the compiler will not add any more padding.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/packet.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index f02dbb1892dd..4e5fe7d0dcbe 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -175,7 +175,10 @@ struct batadv_ogm_packet {
 	uint8_t  reserved;
 	uint8_t  tq;
 	__be16   tvlv_len;
-} __packed;
+	/* __packed is not needed as the struct size is divisible by 4,
+	 * and the largest data type in this struct has a size of 4.
+	 */
+};
 
 #define BATADV_OGM_HLEN sizeof(struct batadv_ogm_packet)
 
-- 
cgit 


From 18c68d5960c8dfeb2db113f4b871bab259cfd565 Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Thu, 25 Apr 2013 10:37:25 +0200
Subject: batman-adv: reorder batadv_iv_flags

The vis flag is not needed anymore, and since we do a compat bump we
can start with the first bit again

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/packet.h | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index 4e5fe7d0dcbe..4361bae6186a 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -67,10 +67,19 @@ enum batadv_subtype {
 /* this file is included by batctl which needs these defines */
 #define BATADV_COMPAT_VERSION 15
 
+/**
+ * enum batadv_iv_flags - flags used in B.A.T.M.A.N. IV OGM packets
+ * @BATADV_NOT_BEST_NEXT_HOP: flag is set when ogm packet is forwarded and was
+ *     previously received from someone else than the best neighbor.
+ * @BATADV_PRIMARIES_FIRST_HOP: flag is set when the primary interface address
+ *     is used, and the packet travels its first hop.
+ * @BATADV_DIRECTLINK: flag is for the first hop or if rebroadcasted from a
+ *     one hop neighbor on the interface where it was originally received.
+ */
 enum batadv_iv_flags {
-	BATADV_NOT_BEST_NEXT_HOP   = BIT(3),
-	BATADV_PRIMARIES_FIRST_HOP = BIT(4),
-	BATADV_DIRECTLINK	   = BIT(6),
+	BATADV_NOT_BEST_NEXT_HOP   = BIT(0),
+	BATADV_PRIMARIES_FIRST_HOP = BIT(1),
+	BATADV_DIRECTLINK          = BIT(2),
 };
 
 /* ICMP message types */
@@ -164,11 +173,12 @@ struct batadv_header {
 /**
  * struct batadv_ogm_packet - ogm (routing protocol) packet
  * @header: common batman packet header
+ * @flags: contains routing relevant flags - see enum batadv_iv_flags
  * @tvlv_len: length of tvlv data following the ogm header
  */
 struct batadv_ogm_packet {
 	struct batadv_header header;
-	uint8_t  flags;    /* 0x40: DIRECTLINK flag ... */
+	uint8_t  flags;
 	__be32   seqno;
 	uint8_t  orig[ETH_ALEN];
 	uint8_t  prev_sender[ETH_ALEN];
-- 
cgit 


From 2f48fcd84e9e68392e29c59204a4a434311d49e9 Mon Sep 17 00:00:00 2001
From: Roberto Vitillo <ravitillo@lbl.gov>
Date: Wed, 11 Sep 2013 14:09:32 +0900
Subject: perf tools: Implement addr2line directly using libbfd

When the srcline sort key is used , the external addr2line utility needs
to be run for each hist entry to get the srcline info.  This can consume
quite a time if one has a huge perf.data file.

So rather than executing the external utility, implement it internally
and just call it.  We can do it since we've linked with libbfd already.

Signed-off-by: Roberto Agostino Vitillo <ravitillo@lbl.gov>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1378876173-13363-9-git-send-email-namhyung@kernel.org
[ Use a2l_data struct instead of static globals ]
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/config/Makefile |   4 ++
 tools/perf/util/srcline.c  | 167 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 171 insertions(+)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index d9bba8d57c40..cf6ad5db19dc 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -523,6 +523,10 @@ ifndef NO_LIBNUMA
   endif
 endif
 
+ifndef ($(filter -lbfd,$(EXTLIBS)),)
+  CFLAGS += -DHAVE_LIBBFD_SUPPORT
+endif
+
 # Among the variables below, these:
 #   perfexecdir
 #   template_dir
diff --git a/tools/perf/util/srcline.c b/tools/perf/util/srcline.c
index dcff10bed7da..37353194e0f6 100644
--- a/tools/perf/util/srcline.c
+++ b/tools/perf/util/srcline.c
@@ -8,6 +8,172 @@
 #include "util/util.h"
 #include "util/debug.h"
 
+#ifdef HAVE_LIBBFD_SUPPORT
+
+/*
+ * Implement addr2line using libbfd.
+ */
+#define PACKAGE "perf"
+#include <bfd.h>
+
+struct a2l_data {
+	const char 	*input;
+	unsigned long 	addr;
+
+	bool 		found;
+	const char 	*filename;
+	const char 	*funcname;
+	unsigned 	line;
+
+	bfd 		*abfd;
+	asymbol 	**syms;
+};
+
+static int bfd_error(const char *string)
+{
+	const char *errmsg;
+
+	errmsg = bfd_errmsg(bfd_get_error());
+	fflush(stdout);
+
+	if (string)
+		pr_debug("%s: %s\n", string, errmsg);
+	else
+		pr_debug("%s\n", errmsg);
+
+	return -1;
+}
+
+static int slurp_symtab(bfd *abfd, struct a2l_data *a2l)
+{
+	long storage;
+	long symcount;
+	asymbol **syms;
+	bfd_boolean dynamic = FALSE;
+
+	if ((bfd_get_file_flags(abfd) & HAS_SYMS) == 0)
+		return bfd_error(bfd_get_filename(abfd));
+
+	storage = bfd_get_symtab_upper_bound(abfd);
+	if (storage == 0L) {
+		storage = bfd_get_dynamic_symtab_upper_bound(abfd);
+		dynamic = TRUE;
+	}
+	if (storage < 0L)
+		return bfd_error(bfd_get_filename(abfd));
+
+	syms = malloc(storage);
+	if (dynamic)
+		symcount = bfd_canonicalize_dynamic_symtab(abfd, syms);
+	else
+		symcount = bfd_canonicalize_symtab(abfd, syms);
+
+	if (symcount < 0) {
+		free(syms);
+		return bfd_error(bfd_get_filename(abfd));
+	}
+
+	a2l->syms = syms;
+	return 0;
+}
+
+static void find_address_in_section(bfd *abfd, asection *section, void *data)
+{
+	bfd_vma pc, vma;
+	bfd_size_type size;
+	struct a2l_data *a2l = data;
+
+	if (a2l->found)
+		return;
+
+	if ((bfd_get_section_flags(abfd, section) & SEC_ALLOC) == 0)
+		return;
+
+	pc = a2l->addr;
+	vma = bfd_get_section_vma(abfd, section);
+	size = bfd_get_section_size(section);
+
+	if (pc < vma || pc >= vma + size)
+		return;
+
+	a2l->found = bfd_find_nearest_line(abfd, section, a2l->syms, pc - vma,
+					   &a2l->filename, &a2l->funcname,
+					   &a2l->line);
+}
+
+static struct a2l_data *addr2line_init(const char *path)
+{
+	bfd *abfd;
+	struct a2l_data *a2l = NULL;
+
+	abfd = bfd_openr(path, NULL);
+	if (abfd == NULL)
+		return NULL;
+
+	if (!bfd_check_format(abfd, bfd_object))
+		goto out;
+
+	a2l = zalloc(sizeof(*a2l));
+	if (a2l == NULL)
+		goto out;
+
+	a2l->abfd = abfd;
+	a2l->input = strdup(path);
+	if (a2l->input == NULL)
+		goto out;
+
+	if (slurp_symtab(abfd, a2l))
+		goto out;
+
+	return a2l;
+
+out:
+	if (a2l) {
+		free((void *)a2l->input);
+		free(a2l);
+	}
+	bfd_close(abfd);
+	return NULL;
+}
+
+static void addr2line_cleanup(struct a2l_data *a2l)
+{
+	if (a2l->abfd)
+		bfd_close(a2l->abfd);
+	free((void *)a2l->input);
+	free(a2l->syms);
+	free(a2l);
+}
+
+static int addr2line(const char *dso_name, unsigned long addr,
+		     char **file, unsigned int *line)
+{
+	int ret = 0;
+	struct a2l_data *a2l;
+
+	a2l = addr2line_init(dso_name);
+	if (a2l == NULL) {
+		pr_warning("addr2line_init failed for %s\n", dso_name);
+		return 0;
+	}
+
+	a2l->addr = addr;
+	bfd_map_over_sections(a2l->abfd, find_address_in_section, a2l);
+
+	if (a2l->found && a2l->filename) {
+		*file = strdup(a2l->filename);
+		*line = a2l->line;
+
+		if (*file)
+			ret = 1;
+	}
+
+	addr2line_cleanup(a2l);
+	return ret;
+}
+
+#else /* HAVE_LIBBFD_SUPPORT */
+
 static int addr2line(const char *dso_name, unsigned long addr,
 		     char **file, unsigned int *line_nr)
 {
@@ -53,6 +219,7 @@ out:
 	pclose(fp);
 	return ret;
 }
+#endif /* HAVE_LIBBFD_SUPPORT */
 
 char *get_srcline(struct dso *dso, unsigned long addr)
 {
-- 
cgit 


From 61000861e860baf5f21b8d2bcd784810bfb0ad06 Mon Sep 17 00:00:00 2001
From: Ajit Khaparde <ajit.khaparde@emulex.com>
Date: Thu, 3 Oct 2013 16:16:33 -0500
Subject: be2net: Call version 2 of GET_STATS ioctl for Skyhawk-R

Moving to version 2 of GET_STATS command as SkyHawk-R supports
higher number of rings.

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be_cmds.c |  6 ++-
 drivers/net/ethernet/emulex/benet/be_cmds.h | 84 +++++++++++++++++++++++++++++
 drivers/net/ethernet/emulex/benet/be_main.c | 74 ++++++++++++++++++++++---
 3 files changed, 155 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index 787bce8c5246..2d554366b342 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -1436,8 +1436,12 @@ int be_cmd_get_stats(struct be_adapter *adapter, struct be_dma_mem *nonemb_cmd)
 		OPCODE_ETH_GET_STATISTICS, nonemb_cmd->size, wrb, nonemb_cmd);
 
 	/* version 1 of the cmd is not supported only by BE2 */
-	if (!BE2_chip(adapter))
+	if (BE2_chip(adapter))
+		hdr->version = 0;
+	if (BE3_chip(adapter) || lancer_chip(adapter))
 		hdr->version = 1;
+	else
+		hdr->version = 2;
 
 	be_mcc_notify(adapter);
 	adapter->stats_cmd_sent = true;
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index 337ef1f96f0b..88708372d5e5 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -1662,6 +1662,67 @@ struct be_erx_stats_v1 {
 	u32 rsvd[4];
 };
 
+struct be_port_rxf_stats_v2 {
+	u32 rsvd0[10];
+	u32 roce_bytes_received_lsd;
+	u32 roce_bytes_received_msd;
+	u32 rsvd1[5];
+	u32 roce_frames_received;
+	u32 rx_crc_errors;
+	u32 rx_alignment_symbol_errors;
+	u32 rx_pause_frames;
+	u32 rx_priority_pause_frames;
+	u32 rx_control_frames;
+	u32 rx_in_range_errors;
+	u32 rx_out_range_errors;
+	u32 rx_frame_too_long;
+	u32 rx_address_filtered;
+	u32 rx_dropped_too_small;
+	u32 rx_dropped_too_short;
+	u32 rx_dropped_header_too_small;
+	u32 rx_dropped_tcp_length;
+	u32 rx_dropped_runt;
+	u32 rsvd2[10];
+	u32 rx_ip_checksum_errs;
+	u32 rx_tcp_checksum_errs;
+	u32 rx_udp_checksum_errs;
+	u32 rsvd3[7];
+	u32 rx_switched_unicast_packets;
+	u32 rx_switched_multicast_packets;
+	u32 rx_switched_broadcast_packets;
+	u32 rsvd4[3];
+	u32 tx_pauseframes;
+	u32 tx_priority_pauseframes;
+	u32 tx_controlframes;
+	u32 rsvd5[10];
+	u32 rxpp_fifo_overflow_drop;
+	u32 rx_input_fifo_overflow_drop;
+	u32 pmem_fifo_overflow_drop;
+	u32 jabber_events;
+	u32 rsvd6[3];
+	u32 rx_drops_payload_size;
+	u32 rx_drops_clipped_header;
+	u32 rx_drops_crc;
+	u32 roce_drops_payload_len;
+	u32 roce_drops_crc;
+	u32 rsvd7[19];
+};
+
+struct be_rxf_stats_v2 {
+	struct be_port_rxf_stats_v2 port[4];
+	u32 rsvd0[2];
+	u32 rx_drops_no_pbuf;
+	u32 rx_drops_no_txpb;
+	u32 rx_drops_no_erx_descr;
+	u32 rx_drops_no_tpre_descr;
+	u32 rsvd1[6];
+	u32 rx_drops_too_many_frags;
+	u32 rx_drops_invalid_ring;
+	u32 forwarded_packets;
+	u32 rx_drops_mtu;
+	u32 rsvd2[35];
+};
+
 struct be_hw_stats_v1 {
 	struct be_rxf_stats_v1 rxf;
 	u32 rsvd0[BE_TXP_SW_SZ];
@@ -1680,6 +1741,29 @@ struct be_cmd_resp_get_stats_v1 {
 	struct be_hw_stats_v1 hw_stats;
 };
 
+struct be_erx_stats_v2 {
+	u32 rx_drops_no_fragments[136];     /* dwordS 0 to 135*/
+	u32 rsvd[3];
+};
+
+struct be_hw_stats_v2 {
+	struct be_rxf_stats_v2 rxf;
+	u32 rsvd0[BE_TXP_SW_SZ];
+	struct be_erx_stats_v2 erx;
+	struct be_pmem_stats pmem;
+	u32 rsvd1[18];
+};
+
+struct be_cmd_req_get_stats_v2 {
+	struct be_cmd_req_hdr hdr;
+	u8 rsvd[sizeof(struct be_hw_stats_v2)];
+};
+
+struct be_cmd_resp_get_stats_v2 {
+	struct be_cmd_resp_hdr hdr;
+	struct be_hw_stats_v2 hw_stats;
+};
+
 /************** get fat capabilites *******************/
 #define MAX_MODULES 27
 #define MAX_MODES 4
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 9daee2e8db04..6e3a141c7a67 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -306,9 +306,13 @@ static void *hw_stats_from_cmd(struct be_adapter *adapter)
 		struct be_cmd_resp_get_stats_v0 *cmd = adapter->stats_cmd.va;
 
 		return &cmd->hw_stats;
-	} else  {
+	} else if (BE3_chip(adapter)) {
 		struct be_cmd_resp_get_stats_v1 *cmd = adapter->stats_cmd.va;
 
+		return &cmd->hw_stats;
+	} else {
+		struct be_cmd_resp_get_stats_v2 *cmd = adapter->stats_cmd.va;
+
 		return &cmd->hw_stats;
 	}
 }
@@ -320,9 +324,13 @@ static void *be_erx_stats_from_cmd(struct be_adapter *adapter)
 		struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
 
 		return &hw_stats->erx;
-	} else {
+	} else if (BE3_chip(adapter)) {
 		struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
 
+		return &hw_stats->erx;
+	} else {
+		struct be_hw_stats_v2 *hw_stats = hw_stats_from_cmd(adapter);
+
 		return &hw_stats->erx;
 	}
 }
@@ -422,6 +430,52 @@ static void populate_be_v1_stats(struct be_adapter *adapter)
 	adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
 }
 
+static void populate_be_v2_stats(struct be_adapter *adapter)
+{
+	struct be_hw_stats_v2 *hw_stats = hw_stats_from_cmd(adapter);
+	struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
+	struct be_rxf_stats_v2 *rxf_stats = &hw_stats->rxf;
+	struct be_port_rxf_stats_v2 *port_stats =
+					&rxf_stats->port[adapter->port_num];
+	struct be_drv_stats *drvs = &adapter->drv_stats;
+
+	be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
+	drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
+	drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
+	drvs->rx_pause_frames = port_stats->rx_pause_frames;
+	drvs->rx_crc_errors = port_stats->rx_crc_errors;
+	drvs->rx_control_frames = port_stats->rx_control_frames;
+	drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
+	drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
+	drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
+	drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
+	drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
+	drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
+	drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
+	drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
+	drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
+	drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
+	drvs->rx_dropped_header_too_small =
+		port_stats->rx_dropped_header_too_small;
+	drvs->rx_input_fifo_overflow_drop =
+		port_stats->rx_input_fifo_overflow_drop;
+	drvs->rx_address_filtered = port_stats->rx_address_filtered;
+	drvs->rx_alignment_symbol_errors =
+		port_stats->rx_alignment_symbol_errors;
+	drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
+	drvs->tx_pauseframes = port_stats->tx_pauseframes;
+	drvs->tx_controlframes = port_stats->tx_controlframes;
+	drvs->tx_priority_pauseframes = port_stats->tx_priority_pauseframes;
+	drvs->jabber_events = port_stats->jabber_events;
+	drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
+	drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
+	drvs->forwarded_packets = rxf_stats->forwarded_packets;
+	drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
+	drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
+	drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
+	adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
+}
+
 static void populate_lancer_stats(struct be_adapter *adapter)
 {
 
@@ -489,7 +543,7 @@ static void populate_erx_stats(struct be_adapter *adapter,
 
 void be_parse_stats(struct be_adapter *adapter)
 {
-	struct be_erx_stats_v1 *erx = be_erx_stats_from_cmd(adapter);
+	struct be_erx_stats_v2 *erx = be_erx_stats_from_cmd(adapter);
 	struct be_rx_obj *rxo;
 	int i;
 	u32 erx_stat;
@@ -499,11 +553,13 @@ void be_parse_stats(struct be_adapter *adapter)
 	} else {
 		if (BE2_chip(adapter))
 			populate_be_v0_stats(adapter);
-		else
-			/* for BE3 and Skyhawk */
+		else if (BE3_chip(adapter))
+			/* for BE3 */
 			populate_be_v1_stats(adapter);
+		else
+			populate_be_v2_stats(adapter);
 
-		/* as erx_v1 is longer than v0, ok to use v1 for v0 access */
+		/* erx_v2 is longer than v0, v1. use v2 for v0, v1 access */
 		for_all_rx_queues(adapter, rxo, i) {
 			erx_stat = erx->rx_drops_no_fragments[rxo->q.id];
 			populate_erx_stats(adapter, rxo, erx_stat);
@@ -4102,9 +4158,11 @@ static int be_stats_init(struct be_adapter *adapter)
 		cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
 	else if (BE2_chip(adapter))
 		cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
-	else
-		/* BE3 and Skyhawk */
+	else if (BE3_chip(adapter))
 		cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
+	else
+		/* ALL non-BE ASICs */
+		cmd->size = sizeof(struct be_cmd_req_get_stats_v2);
 
 	cmd->va = dma_zalloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
 				      GFP_KERNEL);
-- 
cgit 


From 461ae37922ccc224b20c7cf20314eb4166d2494a Mon Sep 17 00:00:00 2001
From: Ajit Khaparde <ajit.khaparde@emulex.com>
Date: Thu, 3 Oct 2013 16:16:50 -0500
Subject: be2net: Display RoCE specific counters in ethtool -S

SkyHawk-R can support RoCE. Add code to display RoCE specific
counters maintained in hardware.

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be.h         | 5 +++++
 drivers/net/ethernet/emulex/benet/be_ethtool.c | 7 ++++++-
 drivers/net/ethernet/emulex/benet/be_main.c    | 8 ++++++++
 3 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index add6d7a953c6..944e6be27c64 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -325,6 +325,11 @@ struct be_drv_stats {
 	u32 rx_input_fifo_overflow_drop;
 	u32 pmem_fifo_overflow_drop;
 	u32 jabber_events;
+	u32 rx_roce_bytes_lsd;
+	u32 rx_roce_bytes_msd;
+	u32 rx_roce_frames;
+	u32 roce_drops_payload_len;
+	u32 roce_drops_crc;
 };
 
 struct be_vf_cfg {
diff --git a/drivers/net/ethernet/emulex/benet/be_ethtool.c b/drivers/net/ethernet/emulex/benet/be_ethtool.c
index 3dcf817e756d..08330034d9ef 100644
--- a/drivers/net/ethernet/emulex/benet/be_ethtool.c
+++ b/drivers/net/ethernet/emulex/benet/be_ethtool.c
@@ -116,7 +116,12 @@ static const struct be_ethtool_stat et_stats[] = {
 	{DRVSTAT_INFO(rx_drops_mtu)},
 	/* Number of packets dropped due to random early drop function */
 	{DRVSTAT_INFO(eth_red_drops)},
-	{DRVSTAT_INFO(be_on_die_temperature)}
+	{DRVSTAT_INFO(be_on_die_temperature)},
+	{DRVSTAT_INFO(rx_roce_bytes_lsd)},
+	{DRVSTAT_INFO(rx_roce_bytes_msd)},
+	{DRVSTAT_INFO(rx_roce_frames)},
+	{DRVSTAT_INFO(roce_drops_payload_len)},
+	{DRVSTAT_INFO(roce_drops_crc)}
 };
 #define ETHTOOL_STATS_NUM ARRAY_SIZE(et_stats)
 
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 6e3a141c7a67..2d6115c0e99b 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -474,6 +474,14 @@ static void populate_be_v2_stats(struct be_adapter *adapter)
 	drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
 	drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
 	adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
+	if (be_roce_supported(adapter))  {
+		drvs->rx_roce_bytes_lsd = port_stats->roce_bytes_received_lsd;
+		drvs->rx_roce_bytes_msd = port_stats->roce_bytes_received_msd;
+		drvs->rx_roce_frames = port_stats->roce_frames_received;
+		drvs->roce_drops_crc = port_stats->roce_drops_crc;
+		drvs->roce_drops_payload_len =
+			port_stats->roce_drops_payload_len;
+	}
 }
 
 static void populate_lancer_stats(struct be_adapter *adapter)
-- 
cgit 


From b68656b22fd7a3e03087c11b2b45c15c0b328609 Mon Sep 17 00:00:00 2001
From: Ajit Khaparde <ajit.khaparde@emulex.com>
Date: Thu, 3 Oct 2013 16:17:06 -0500
Subject: be2net: change the driver version number to 4.9.224.0

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index 944e6be27c64..1bce77fdbd99 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -34,7 +34,7 @@
 #include "be_hw.h"
 #include "be_roce.h"
 
-#define DRV_VER			"4.9.134.0u"
+#define DRV_VER			"4.9.224.0u"
 #define DRV_NAME		"be2net"
 #define BE_NAME			"Emulex BladeEngine2"
 #define BE3_NAME		"Emulex BladeEngine3"
-- 
cgit 


From c46016665fff1dcf08d6046cee45c98781996567 Mon Sep 17 00:00:00 2001
From: Josh Wu <josh.wu@atmel.com>
Date: Tue, 8 Oct 2013 04:48:00 +0100
Subject: iio: at91: ADC start-up time calculation changed since at91sam9x5

Since in at91sam9x5, sama5d3x chip. the start up time calucation is changed.
This patch can choose different start up time calculation formula for different
chips.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/at91_adc.c | 53 ++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 46 insertions(+), 7 deletions(-)

diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index 8b93295369b0..abce01b9ff91 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -40,6 +40,9 @@
 	(writel_relaxed(val, st->reg_base + reg))
 
 struct at91_adc_caps {
+	/* startup time calculate function */
+	u32 (*calc_startup_ticks)(u8 startup_time, u32 adc_clk_khz);
+
 	struct at91_adc_reg_desc registers;
 };
 
@@ -428,6 +431,45 @@ ret:
 	return ret;
 }
 
+static u32 calc_startup_ticks_9260(u8 startup_time, u32 adc_clk_khz)
+{
+	/*
+	 * Number of ticks needed to cover the startup time of the ADC
+	 * as defined in the electrical characteristics of the board,
+	 * divided by 8. The formula thus is :
+	 *   Startup Time = (ticks + 1) * 8 / ADC Clock
+	 */
+	return round_up((startup_time * adc_clk_khz / 1000) - 1, 8) / 8;
+}
+
+static u32 calc_startup_ticks_9x5(u8 startup_time, u32 adc_clk_khz)
+{
+	/*
+	 * For sama5d3x and at91sam9x5, the formula changes to:
+	 * Startup Time = <lookup_table_value> / ADC Clock
+	 */
+	const int startup_lookup[] = {
+		0  , 8  , 16 , 24 ,
+		64 , 80 , 96 , 112,
+		512, 576, 640, 704,
+		768, 832, 896, 960
+		};
+	int i, size = ARRAY_SIZE(startup_lookup);
+	unsigned int ticks;
+
+	ticks = startup_time * adc_clk_khz / 1000;
+	for (i = 0; i < size; i++)
+		if (ticks < startup_lookup[i])
+			break;
+
+	ticks = i;
+	if (ticks == size)
+		/* Reach the end of lookup table */
+		ticks = size - 1;
+
+	return ticks;
+}
+
 static const struct of_device_id at91_adc_dt_ids[];
 
 static int at91_adc_probe_dt(struct at91_adc_state *st,
@@ -651,14 +693,8 @@ static int at91_adc_probe(struct platform_device *pdev)
 		ret = -EINVAL;
 		goto error_disable_adc_clk;
 	}
+	ticks = (*st->caps->calc_startup_ticks)(st->startup_time, adc_clk_khz);
 
-	/*
-	 * Number of ticks needed to cover the startup time of the ADC as
-	 * defined in the electrical characteristics of the board, divided by 8.
-	 * The formula thus is : Startup Time = (ticks + 1) * 8 / ADC Clock
-	 */
-	ticks = round_up((st->startup_time * adc_clk_khz /
-			  1000) - 1, 8) / 8;
 	/*
 	 * a minimal Sample and Hold Time is necessary for the ADC to guarantee
 	 * the best converted final value between two channels selection
@@ -736,6 +772,7 @@ static int at91_adc_remove(struct platform_device *pdev)
 
 #ifdef CONFIG_OF
 static struct at91_adc_caps at91sam9260_caps = {
+	.calc_startup_ticks = calc_startup_ticks_9260,
 	.registers = {
 		.channel_base = AT91_ADC_CHR(0),
 		.drdy_mask = AT91_ADC_DRDY,
@@ -747,6 +784,7 @@ static struct at91_adc_caps at91sam9260_caps = {
 };
 
 static struct at91_adc_caps at91sam9g45_caps = {
+	.calc_startup_ticks = calc_startup_ticks_9260,	/* same as 9260 */
 	.registers = {
 		.channel_base = AT91_ADC_CHR(0),
 		.drdy_mask = AT91_ADC_DRDY,
@@ -758,6 +796,7 @@ static struct at91_adc_caps at91sam9g45_caps = {
 };
 
 static struct at91_adc_caps at91sam9x5_caps = {
+	.calc_startup_ticks = calc_startup_ticks_9x5,
 	.registers = {
 		.channel_base = AT91_ADC_CDR0_9X5,
 		.drdy_mask = AT91_ADC_SR_DRDY_9X5,
-- 
cgit 


From 2b6d598bc9043f51d2092d10392a6e3c161cdff7 Mon Sep 17 00:00:00 2001
From: Josh Wu <josh.wu@atmel.com>
Date: Tue, 8 Oct 2013 04:48:00 +0100
Subject: iio: at91: move the num_channels from DT to driver itself

CC: devicetree@vger.kernel.org
Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 Documentation/devicetree/bindings/arm/atmel-adc.txt |  1 -
 drivers/iio/adc/at91_adc.c                          | 12 +++++-------
 2 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/Documentation/devicetree/bindings/arm/atmel-adc.txt b/Documentation/devicetree/bindings/arm/atmel-adc.txt
index 723c205cb10d..0e65e0137487 100644
--- a/Documentation/devicetree/bindings/arm/atmel-adc.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-adc.txt
@@ -7,7 +7,6 @@ Required properties:
   - interrupts: Should contain the IRQ line for the ADC
   - atmel,adc-channels-used: Bitmask of the channels muxed and enable for this
     device
-  - atmel,adc-num-channels: Number of channels available in the ADC
   - atmel,adc-startup-time: Startup Time of the ADC in microseconds as
     defined in the datasheet
   - atmel,adc-vref: Reference voltage in millivolts for the conversions
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index abce01b9ff91..690a560e0dab 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -43,6 +43,7 @@ struct at91_adc_caps {
 	/* startup time calculate function */
 	u32 (*calc_startup_ticks)(u8 startup_time, u32 adc_clk_khz);
 
+	u8	num_channels;
 	struct at91_adc_reg_desc registers;
 };
 
@@ -496,13 +497,6 @@ static int at91_adc_probe_dt(struct at91_adc_state *st,
 	}
 	st->channels_mask = prop;
 
-	if (of_property_read_u32(node, "atmel,adc-num-channels", &prop)) {
-		dev_err(&idev->dev, "Missing adc-num-channels property in the DT.\n");
-		ret = -EINVAL;
-		goto error_ret;
-	}
-	st->num_channels = prop;
-
 	st->sleep_mode = of_property_read_bool(node, "atmel,adc-sleep-mode");
 
 	if (of_property_read_u32(node, "atmel,adc-startup-time", &prop)) {
@@ -528,6 +522,7 @@ static int at91_adc_probe_dt(struct at91_adc_state *st,
 		goto error_ret;
 
 	st->registers = &st->caps->registers;
+	st->num_channels = st->caps->num_channels;
 	st->trigger_number = of_get_child_count(node);
 	st->trigger_list = devm_kzalloc(&idev->dev, st->trigger_number *
 					sizeof(struct at91_adc_trigger),
@@ -773,6 +768,7 @@ static int at91_adc_remove(struct platform_device *pdev)
 #ifdef CONFIG_OF
 static struct at91_adc_caps at91sam9260_caps = {
 	.calc_startup_ticks = calc_startup_ticks_9260,
+	.num_channels = 4,
 	.registers = {
 		.channel_base = AT91_ADC_CHR(0),
 		.drdy_mask = AT91_ADC_DRDY,
@@ -785,6 +781,7 @@ static struct at91_adc_caps at91sam9260_caps = {
 
 static struct at91_adc_caps at91sam9g45_caps = {
 	.calc_startup_ticks = calc_startup_ticks_9260,	/* same as 9260 */
+	.num_channels = 8,
 	.registers = {
 		.channel_base = AT91_ADC_CHR(0),
 		.drdy_mask = AT91_ADC_DRDY,
@@ -797,6 +794,7 @@ static struct at91_adc_caps at91sam9g45_caps = {
 
 static struct at91_adc_caps at91sam9x5_caps = {
 	.calc_startup_ticks = calc_startup_ticks_9x5,
+	.num_channels = 12,
 	.registers = {
 		.channel_base = AT91_ADC_CDR0_9X5,
 		.drdy_mask = AT91_ADC_SR_DRDY_9X5,
-- 
cgit 


From 4adcc43003024354b45edadfad4ea2fa205f135f Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Wed, 11 Sep 2013 14:09:33 +0900
Subject: perf tools: Fix srcline sort key behavior

Currently the srcline sort key compares ip rather than srcline info.  I
guess this was due to a performance reason to run external addr2line
utility.  Now we have implemented the functionality inside, use the
srcline info when comparing hist entries.

Also constantly print "??:0" string for unknown srcline rather than
printing ip.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1378876173-13363-10-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/sort.c | 41 ++++++++++++++++++++---------------------
 1 file changed, 20 insertions(+), 21 deletions(-)

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index f732120e8bc6..32c56377e008 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -243,33 +243,32 @@ struct sort_entry sort_sym = {
 static int64_t
 sort__srcline_cmp(struct hist_entry *left, struct hist_entry *right)
 {
-	return (int64_t)(right->ip - left->ip);
+	if (!left->srcline) {
+		if (!left->ms.map)
+			left->srcline = SRCLINE_UNKNOWN;
+		else {
+			struct map *map = left->ms.map;
+			left->srcline = get_srcline(map->dso,
+					    map__rip_2objdump(map, left->ip));
+		}
+	}
+	if (!right->srcline) {
+		if (!right->ms.map)
+			right->srcline = SRCLINE_UNKNOWN;
+		else {
+			struct map *map = right->ms.map;
+			right->srcline = get_srcline(map->dso,
+					    map__rip_2objdump(map, right->ip));
+		}
+	}
+	return strcmp(left->srcline, right->srcline);
 }
 
 static int hist_entry__srcline_snprintf(struct hist_entry *self, char *bf,
 					size_t size,
 					unsigned int width __maybe_unused)
 {
-	FILE *fp = NULL;
-	char *path = self->srcline;
-
-	if (path != NULL)
-		goto out_path;
-
-	if (!self->ms.map)
-		goto out_ip;
-
-	path = get_srcline(self->ms.map->dso, self->ip);
-	self->srcline = path;
-
-out_path:
-	if (fp)
-		pclose(fp);
-	return repsep_snprintf(bf, size, "%s", path);
-out_ip:
-	if (fp)
-		pclose(fp);
-	return repsep_snprintf(bf, size, "%-#*llx", BITS_PER_LONG / 4, self->ip);
+	return repsep_snprintf(bf, size, "%s", self->srcline);
 }
 
 struct sort_entry sort_srcline = {
-- 
cgit 


From eac032c54be48e899a7be2b8db4b746be1b51748 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Fri, 20 Sep 2013 11:27:32 -0300
Subject: perf trace: Beautify epoll_ctl 'op' arg

[root@sandy ~]# perf trace -e epoll_ctl
 2.490 (0.003 ms): systemd-logind/586 epoll_ctl(epfd: 10, op: ADD, fd: 24, event: 0x7fff22314ef0) = 0
 2.621 (0.003 ms): systemd-logind/586 epoll_ctl(epfd: 10, op: DEL, fd: 24                       ) = 0
 2.833 (0.010 ms): systemd-logind/586 epoll_ctl(epfd: 10, op: ADD, fd: 24, event: 0x7fff22314cd0) = 0
 2.953 (0.002 ms): systemd-logind/586 epoll_ctl(epfd: 10, op: DEL, fd: 24                       ) = 0
 3.118 (0.002 ms): systemd-logind/586 epoll_ctl(epfd: 10, op: ADD, fd: 24, event: 0x7fff22314d20) = 0
 4.762 (0.002 ms): systemd-logind/586 epoll_ctl(epfd: 10, op: DEL, fd: 24                       ) = 0
^C[root@sandy ~]#

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-88xz9phc8cbicnxonud6if8h@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index f3ddbb008fb4..807e542da623 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -232,6 +232,9 @@ static size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, struct sysc
 
 #define SCA_FUTEX_OP  syscall_arg__scnprintf_futex_op
 
+static const char *epoll_ctl_ops[] = { [1] = "ADD", "DEL", "MOD", };
+static DEFINE_STRARRAY(epoll_ctl_ops);
+
 static const char *itimers[] = { "REAL", "VIRTUAL", "PROF", };
 static DEFINE_STRARRAY(itimers);
 
@@ -543,6 +546,9 @@ static struct syscall_fmt {
 	{ .name	    = "brk",	    .hexret = true,
 	  .arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, },
 	{ .name	    = "connect",    .errmsg = true, },
+	{ .name	    = "epoll_ctl",  .errmsg = true,
+	  .arg_scnprintf = { [1] = SCA_STRARRAY, /* op */ },
+	  .arg_parm	 = { [1] = &strarray__epoll_ctl_ops, /* op */ }, },
 	{ .name	    = "eventfd2",   .errmsg = true,
 	  .arg_scnprintf = { [1] = SCA_EFD_FLAGS, /* flags */ }, },
 	{ .name	    = "fcntl",	    .errmsg = true,
-- 
cgit 


From 5cea6ff265e6979226b751f5ebfdda4594322523 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Fri, 20 Sep 2013 11:49:50 -0300
Subject: perf trace: Beautify flock 'cmd' arg

  4735.638 ( 0.003 ms): man/19881 flock(fd: 3, cmd: SH|NB) = 0
  4735.832 ( 0.002 ms): man/19881 flock(fd: 3, cmd: UN   ) = 0

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-amh3y88kh1nmclpwezqlarl8@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 807e542da623..2007c8c2c52b 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -189,6 +189,37 @@ static size_t syscall_arg__scnprintf_madvise_behavior(char *bf, size_t size,
 
 #define SCA_MADV_BHV syscall_arg__scnprintf_madvise_behavior
 
+static size_t syscall_arg__scnprintf_flock(char *bf, size_t size,
+					   struct syscall_arg *arg)
+{
+	int printed = 0, op = arg->val;
+
+	if (op == 0)
+		return scnprintf(bf, size, "NONE");
+#define	P_CMD(cmd) \
+	if ((op & LOCK_##cmd) == LOCK_##cmd) { \
+		printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #cmd); \
+		op &= ~LOCK_##cmd; \
+	}
+
+	P_CMD(SH);
+	P_CMD(EX);
+	P_CMD(NB);
+	P_CMD(UN);
+	P_CMD(MAND);
+	P_CMD(RW);
+	P_CMD(READ);
+	P_CMD(WRITE);
+#undef P_OP
+
+	if (op)
+		printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", op);
+
+	return printed;
+}
+
+#define SCA_FLOCK syscall_arg__scnprintf_flock
+
 static size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, struct syscall_arg *arg)
 {
 	enum syscall_futex_args {
@@ -554,6 +585,8 @@ static struct syscall_fmt {
 	{ .name	    = "fcntl",	    .errmsg = true,
 	  .arg_scnprintf = { [1] = SCA_STRARRAY, /* cmd */ },
 	  .arg_parm	 = { [1] = &strarray__fcntl_cmds, /* cmd */ }, },
+	{ .name	    = "flock",	    .errmsg = true,
+	  .arg_scnprintf = { [1] = SCA_FLOCK, /* cmd */ }, },
 	{ .name	    = "fstat",	    .errmsg = true, .alias = "newfstat", },
 	{ .name	    = "fstatat",    .errmsg = true, .alias = "newfstatat", },
 	{ .name	    = "futex",	    .errmsg = true,
-- 
cgit 


From 6b49ee49af11890f83fa660a99cd95ac6dacd2fa Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Wed, 9 Oct 2013 14:39:08 -0600
Subject: MAINTAINERS: Add arch/x86/pci to PCI file patterns

I handle many arch/x86/pci changes, so help those patches get to the
PCI patchwork.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
---
 MAINTAINERS | 1 +
 1 file changed, 1 insertion(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index e61c2e83fc2b..18d6c2a7bd36 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6338,6 +6338,7 @@ S:	Supported
 F:	Documentation/PCI/
 F:	drivers/pci/
 F:	include/linux/pci*
+F:	arch/x86/pci/
 
 PCI DRIVER FOR NVIDIA TEGRA
 M:	Thierry Reding <thierry.reding@gmail.com>
-- 
cgit 


From 453350dd0f0245b91b1e43310f5966fb1c51e7bd Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Fri, 20 Sep 2013 12:13:37 -0300
Subject: perf trace: Add helper for syscalls with a single strarray arg

In such cases just stating the (arg, name, array) is enough, reducing
the size of the syscall formatters table.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-3k53p6dv2sh4ydsc5k5otoia@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 40 +++++++++++++---------------------------
 1 file changed, 13 insertions(+), 27 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 2007c8c2c52b..8855207deae8 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -562,6 +562,10 @@ static size_t syscall_arg__scnprintf_signum(char *bf, size_t size, struct syscal
 
 #define SCA_SIGNUM syscall_arg__scnprintf_signum
 
+#define STRARRAY(arg, name, array) \
+	  .arg_scnprintf = { [arg] = SCA_STRARRAY, }, \
+	  .arg_parm	 = { [arg] = &strarray__##array, }
+
 static struct syscall_fmt {
 	const char *name;
 	const char *alias;
@@ -577,33 +581,23 @@ static struct syscall_fmt {
 	{ .name	    = "brk",	    .hexret = true,
 	  .arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, },
 	{ .name	    = "connect",    .errmsg = true, },
-	{ .name	    = "epoll_ctl",  .errmsg = true,
-	  .arg_scnprintf = { [1] = SCA_STRARRAY, /* op */ },
-	  .arg_parm	 = { [1] = &strarray__epoll_ctl_ops, /* op */ }, },
+	{ .name	    = "epoll_ctl",  .errmsg = true, STRARRAY(1, op, epoll_ctl_ops), },
 	{ .name	    = "eventfd2",   .errmsg = true,
 	  .arg_scnprintf = { [1] = SCA_EFD_FLAGS, /* flags */ }, },
-	{ .name	    = "fcntl",	    .errmsg = true,
-	  .arg_scnprintf = { [1] = SCA_STRARRAY, /* cmd */ },
-	  .arg_parm	 = { [1] = &strarray__fcntl_cmds, /* cmd */ }, },
+	{ .name	    = "fcntl",	    .errmsg = true, STRARRAY(1, cmd, fcntl_cmds), },
 	{ .name	    = "flock",	    .errmsg = true,
 	  .arg_scnprintf = { [1] = SCA_FLOCK, /* cmd */ }, },
 	{ .name	    = "fstat",	    .errmsg = true, .alias = "newfstat", },
 	{ .name	    = "fstatat",    .errmsg = true, .alias = "newfstatat", },
 	{ .name	    = "futex",	    .errmsg = true,
 	  .arg_scnprintf = { [1] = SCA_FUTEX_OP, /* op */ }, },
-	{ .name	    = "getitimer",  .errmsg = true,
-	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* which */ },
-	  .arg_parm	 = { [0] = &strarray__itimers, /* which */ }, },
-	{ .name	    = "getrlimit",  .errmsg = true,
-	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* resource */ },
-	  .arg_parm	 = { [0] = &strarray__rlimit_resources, /* resource */ }, },
+	{ .name	    = "getitimer",  .errmsg = true, STRARRAY(0, which, itimers), },
+	{ .name	    = "getrlimit",  .errmsg = true, STRARRAY(0, resource, rlimit_resources), },
 	{ .name	    = "ioctl",	    .errmsg = true,
 	  .arg_scnprintf = { [2] = SCA_HEX, /* arg */ }, },
 	{ .name	    = "kill",	    .errmsg = true,
 	  .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
-	{ .name	    = "lseek",	    .errmsg = true,
-	  .arg_scnprintf = { [2] = SCA_STRARRAY, /* whence */ },
-	  .arg_parm	 = { [2] = &strarray__whences, /* whence */ }, },
+	{ .name	    = "lseek",	    .errmsg = true, STRARRAY(2, whence, whences), },
 	{ .name	    = "lstat",	    .errmsg = true, .alias = "newlstat", },
 	{ .name     = "madvise",    .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_HEX,	 /* start */
@@ -629,9 +623,7 @@ static struct syscall_fmt {
 	{ .name	    = "poll",	    .errmsg = true, .timeout = true, },
 	{ .name	    = "ppoll",	    .errmsg = true, .timeout = true, },
 	{ .name	    = "pread",	    .errmsg = true, .alias = "pread64", },
-	{ .name	    = "prlimit64",  .errmsg = true,
-	  .arg_scnprintf = { [1] = SCA_STRARRAY, /* resource */ },
-	  .arg_parm	 = { [1] = &strarray__rlimit_resources, /* resource */ }, },
+	{ .name	    = "prlimit64",  .errmsg = true, STRARRAY(1, resource, rlimit_resources), },
 	{ .name	    = "pwrite",	    .errmsg = true, .alias = "pwrite64", },
 	{ .name	    = "read",	    .errmsg = true, },
 	{ .name	    = "recvfrom",   .errmsg = true,
@@ -642,9 +634,7 @@ static struct syscall_fmt {
 	  .arg_scnprintf = { [2] = SCA_MSG_FLAGS, /* flags */ }, },
 	{ .name	    = "rt_sigaction", .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_SIGNUM, /* sig */ }, },
-	{ .name	    = "rt_sigprocmask", .errmsg = true,
-	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* how */ },
-	  .arg_parm	 = { [0] = &strarray__sighow, /* how */ }, },
+	{ .name	    = "rt_sigprocmask",  .errmsg = true, STRARRAY(0, how, sighow), },
 	{ .name	    = "rt_sigqueueinfo", .errmsg = true,
 	  .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
 	{ .name	    = "rt_tgsigqueueinfo", .errmsg = true,
@@ -656,12 +646,8 @@ static struct syscall_fmt {
 	  .arg_scnprintf = { [2] = SCA_MSG_FLAGS, /* flags */ }, },
 	{ .name	    = "sendto",	    .errmsg = true,
 	  .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
-	{ .name	    = "setitimer",  .errmsg = true,
-	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* which */ },
-	  .arg_parm	 = { [0] = &strarray__itimers, /* which */ }, },
-	{ .name	    = "setrlimit",  .errmsg = true,
-	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* resource */ },
-	  .arg_parm	 = { [0] = &strarray__rlimit_resources, /* resource */ }, },
+	{ .name	    = "setitimer",  .errmsg = true, STRARRAY(0, which, itimers), },
+	{ .name	    = "setrlimit",  .errmsg = true, STRARRAY(0, resource, rlimit_resources), },
 	{ .name	    = "socket",	    .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */
 			     [1] = SCA_SK_TYPE, /* type */ },
-- 
cgit 


From 4aa5823225c70efba758750029504807cd30b925 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Fri, 20 Sep 2013 12:19:41 -0300
Subject: perf trace: Don't supress zeroed args when there is an strarray entry
 for it

Case in hand:

   9.682 ( 0.001 ms): Xorg/13079 setitimer(which: REAL, value: 0x7fffede42470) = 0

ITIMER_REAL is zero.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-6hnoqsjh99t4hxi3xu2nlwep@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 8855207deae8..27b0ec88cb23 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -940,8 +940,15 @@ static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size,
 		     field = field->next, ++arg.idx, bit <<= 1) {
 			if (arg.mask & bit)
 				continue;
-
-			if (args[arg.idx] == 0)
+			/*
+ 			 * Suppress this argument if its value is zero and
+ 			 * and we don't have a string associated in an
+ 			 * strarray for it.
+ 			 */
+			if (args[arg.idx] == 0 &&
+			    !(sc->arg_scnprintf &&
+			      sc->arg_scnprintf[arg.idx] == SCA_STRARRAY &&
+			      sc->arg_parm[arg.idx]))
 				continue;
 
 			printed += scnprintf(bf + printed, size - printed,
-- 
cgit 


From 07120aa5d5a241895bcca8b6e5b5b8d7b1df1f2f Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Fri, 20 Sep 2013 12:24:20 -0300
Subject: perf trace: Use socket's beautifiers in socketpair

For the address family and socket type.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-3a6cwwskobvan823pau76cm4@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 27b0ec88cb23..bf74217be22c 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -652,6 +652,10 @@ static struct syscall_fmt {
 	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */
 			     [1] = SCA_SK_TYPE, /* type */ },
 	  .arg_parm	 = { [0] = &strarray__socket_families, /* family */ }, },
+	{ .name	    = "socketpair", .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */
+			     [1] = SCA_SK_TYPE, /* type */ },
+	  .arg_parm	 = { [0] = &strarray__socket_families, /* family */ }, },
 	{ .name	    = "stat",	    .errmsg = true, .alias = "newstat", },
 	{ .name	    = "tgkill",	    .errmsg = true,
 	  .arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, },
-- 
cgit 


From 46cce19ba8cc8231d3c949c128e4bdaf420228a2 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Mon, 23 Sep 2013 12:52:04 -0300
Subject: perf trace: Beautify pipe2 'flags' arg

 4.234 (0.005 ms): fetchmail/3224 pipe2(fildes: 0x7fffc72bcee0, flags: CLOEXEC) = 0

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-9e1jz78i6q6e0xr9fsitqbpe@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index bf74217be22c..76d9427b4b91 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -517,6 +517,29 @@ static size_t syscall_arg__scnprintf_eventfd_flags(char *bf, size_t size,
 
 #define SCA_EFD_FLAGS syscall_arg__scnprintf_eventfd_flags
 
+static size_t syscall_arg__scnprintf_pipe_flags(char *bf, size_t size,
+						struct syscall_arg *arg)
+{
+	int printed = 0, flags = arg->val;
+
+#define	P_FLAG(n) \
+	if (flags & O_##n) { \
+		printed += scnprintf(bf + printed, size - printed, "%s%s", printed ? "|" : "", #n); \
+		flags &= ~O_##n; \
+	}
+
+	P_FLAG(CLOEXEC);
+	P_FLAG(NONBLOCK);
+#undef P_FLAG
+
+	if (flags)
+		printed += scnprintf(bf + printed, size - printed, "%s%#x", printed ? "|" : "", flags);
+
+	return printed;
+}
+
+#define SCA_PIPE_FLAGS syscall_arg__scnprintf_pipe_flags
+
 static size_t syscall_arg__scnprintf_signum(char *bf, size_t size, struct syscall_arg *arg)
 {
 	int sig = arg->val;
@@ -620,6 +643,8 @@ static struct syscall_fmt {
 	  .arg_scnprintf = { [2] = SCA_OPEN_FLAGS, /* flags */ }, },
 	{ .name	    = "openat",	    .errmsg = true,
 	  .arg_scnprintf = { [2] = SCA_OPEN_FLAGS, /* flags */ }, },
+	{ .name	    = "pipe2",	    .errmsg = true,
+	  .arg_scnprintf = { [1] = SCA_PIPE_FLAGS, /* flags */ }, },
 	{ .name	    = "poll",	    .errmsg = true, .timeout = true, },
 	{ .name	    = "ppoll",	    .errmsg = true, .timeout = true, },
 	{ .name	    = "pread",	    .errmsg = true, .alias = "pread64", },
-- 
cgit 


From 4f8c1b74c5fdac35ee4480685d42030446724848 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Sun, 22 Sep 2013 19:45:00 -0600
Subject: perf trace: Add beautifier for clock_gettime's clk_id argument

Before:
0.030 ( 0.002 ms): 2571 clock_gettime(which_clock: 1, tp: 0x7f3b45729cd0 ) = 0

After:
0.030 ( 0.002 ms): 2571 clock_gettime(which_clock: MONOTONIC, tp: 0x7f3b45729cd0 ) = 0

v2: Update to use the STRARRAY option

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1379900700-5186-6-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 76d9427b4b91..39a947a0d122 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -297,6 +297,12 @@ static DEFINE_STRARRAY(rlimit_resources);
 static const char *sighow[] = { "BLOCK", "UNBLOCK", "SETMASK", };
 static DEFINE_STRARRAY(sighow);
 
+static const char *clockid[] = {
+	"REALTIME", "MONOTONIC", "PROCESS_CPUTIME_ID", "THREAD_CPUTIME_ID",
+	"MONOTONIC_RAW", "REALTIME_COARSE", "MONOTONIC_COARSE",
+};
+static DEFINE_STRARRAY(clockid);
+
 static const char *socket_families[] = {
 	"UNSPEC", "LOCAL", "INET", "AX25", "IPX", "APPLETALK", "NETROM",
 	"BRIDGE", "ATMPVC", "X25", "INET6", "ROSE", "DECnet", "NETBEUI",
@@ -603,6 +609,7 @@ static struct syscall_fmt {
 	{ .name	    = "arch_prctl", .errmsg = true, .alias = "prctl", },
 	{ .name	    = "brk",	    .hexret = true,
 	  .arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, },
+	{ .name     = "clock_gettime",  .errmsg = true, STRARRAY(0, clk_id, clockid), },
 	{ .name	    = "connect",    .errmsg = true, },
 	{ .name	    = "epoll_ctl",  .errmsg = true, STRARRAY(1, op, epoll_ctl_ops), },
 	{ .name	    = "eventfd2",   .errmsg = true,
-- 
cgit 


From b6e8f8f4674be5a32f78027ec6e432f5ea33921e Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Sun, 22 Sep 2013 19:44:56 -0600
Subject: perf trace: Handle MSG_WAITFORONE not defined

Needed for compiles on Fedora 12 for example.

Signed-off-by: David Ahern <dsahern@gmail.com>
Link: http://lkml.kernel.org/r/1379900700-5186-2-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 39a947a0d122..3ca6a856ba62 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -363,6 +363,9 @@ static size_t syscall_arg__scnprintf_socket_type(char *bf, size_t size,
 #ifndef MSG_PROBE
 #define MSG_PROBE	     0x10
 #endif
+#ifndef MSG_WAITFORONE
+#define MSG_WAITFORONE	0x10000
+#endif
 #ifndef MSG_SENDPAGE_NOTLAST
 #define MSG_SENDPAGE_NOTLAST 0x20000
 #endif
-- 
cgit 


From 3d903aa74a98da2836249bce86aaf557781239c9 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue, 24 Sep 2013 00:09:38 -0300
Subject: perf trace: Beautify mlock & friends 'addr' arg

Printing it as an hex number.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-gd68zmnwbbofsv5m6w18intw@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 3ca6a856ba62..12a275d02ada 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -635,6 +635,10 @@ static struct syscall_fmt {
 	{ .name     = "madvise",    .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_HEX,	 /* start */
 			     [2] = SCA_MADV_BHV, /* behavior */ }, },
+	{ .name	    = "mlock",	    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
+	{ .name	    = "mlockall",   .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
 	{ .name	    = "mmap",	    .hexret = true,
 	  .arg_scnprintf = { [0] = SCA_HEX,	  /* addr */
 			     [2] = SCA_MMAP_PROT, /* prot */
@@ -645,6 +649,8 @@ static struct syscall_fmt {
 	{ .name	    = "mremap",	    .hexret = true,
 	  .arg_scnprintf = { [0] = SCA_HEX, /* addr */
 			     [4] = SCA_HEX, /* new_addr */ }, },
+	{ .name	    = "munlock",    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
 	{ .name	    = "munmap",	    .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
 	{ .name	    = "open",	    .errmsg = true,
-- 
cgit 


From 75b757ca90469e990e6901f4a9497fe4161f7f5a Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue, 24 Sep 2013 11:04:32 -0300
Subject: perf trace: Show path associated with fd in live sessions

For live sessions we can just access /proc to map an fd to its path, on
a best effort way, i.e. sometimes the fd will have gone away when we try
to do the mapping, as it is done in a lazy way, only when a reference to
such fd is made then the path will be looked up in /proc.

This is disabled when processing perf.data files, where we will have to
have a way to get getname events, be it via an on-the-fly 'perf probe'
event or after a vfs_getname tracepoint is added to the kernel.

A first step will be to synthesize such event for the use cases where
the threads in the monitored workload exist already.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-1r1ti33ye1666jezu2d8q1c3@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 253 ++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 237 insertions(+), 16 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 12a275d02ada..fcc157fce6c6 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -36,6 +36,8 @@
 
 struct syscall_arg {
 	unsigned long val;
+	struct thread *thread;
+	struct trace  *trace;
 	void	      *parm;
 	u8	      idx;
 	u8	      mask;
@@ -65,6 +67,29 @@ static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size,
 
 #define SCA_STRARRAY syscall_arg__scnprintf_strarray
 
+static size_t syscall_arg__scnprintf_fd(char *bf, size_t size,
+					struct syscall_arg *arg);
+
+#define SCA_FD syscall_arg__scnprintf_fd
+
+static size_t syscall_arg__scnprintf_fd_at(char *bf, size_t size,
+					   struct syscall_arg *arg)
+{
+	int fd = arg->val;
+
+	if (fd == AT_FDCWD)
+		return scnprintf(bf, size, "CWD");
+
+	return syscall_arg__scnprintf_fd(bf, size, arg);
+}
+
+#define SCA_FDAT syscall_arg__scnprintf_fd_at
+
+static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size,
+					      struct syscall_arg *arg);
+
+#define SCA_CLOSE_FD syscall_arg__scnprintf_close_fd
+
 static size_t syscall_arg__scnprintf_hex(char *bf, size_t size,
 					 struct syscall_arg *arg)
 {
@@ -613,28 +638,84 @@ static struct syscall_fmt {
 	{ .name	    = "brk",	    .hexret = true,
 	  .arg_scnprintf = { [0] = SCA_HEX, /* brk */ }, },
 	{ .name     = "clock_gettime",  .errmsg = true, STRARRAY(0, clk_id, clockid), },
+	{ .name	    = "close",	    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_CLOSE_FD, /* fd */ }, }, 
 	{ .name	    = "connect",    .errmsg = true, },
+	{ .name	    = "dup",	    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+	{ .name	    = "dup2",	    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+	{ .name	    = "dup3",	    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
 	{ .name	    = "epoll_ctl",  .errmsg = true, STRARRAY(1, op, epoll_ctl_ops), },
 	{ .name	    = "eventfd2",   .errmsg = true,
 	  .arg_scnprintf = { [1] = SCA_EFD_FLAGS, /* flags */ }, },
-	{ .name	    = "fcntl",	    .errmsg = true, STRARRAY(1, cmd, fcntl_cmds), },
+	{ .name	    = "faccessat",  .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
+	{ .name	    = "fadvise64",  .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+	{ .name	    = "fallocate",  .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+	{ .name	    = "fchdir",	    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+	{ .name	    = "fchmod",	    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+	{ .name	    = "fchmodat",   .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, 
+	{ .name	    = "fchown",	    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+	{ .name	    = "fchownat",   .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, 
+	{ .name	    = "fcntl",	    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */
+			     [1] = SCA_STRARRAY, /* cmd */ },
+	  .arg_parm	 = { [1] = &strarray__fcntl_cmds, /* cmd */ }, },
+	{ .name	    = "fdatasync",  .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
 	{ .name	    = "flock",	    .errmsg = true,
-	  .arg_scnprintf = { [1] = SCA_FLOCK, /* cmd */ }, },
-	{ .name	    = "fstat",	    .errmsg = true, .alias = "newfstat", },
-	{ .name	    = "fstatat",    .errmsg = true, .alias = "newfstatat", },
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */
+			     [1] = SCA_FLOCK, /* cmd */ }, },
+	{ .name	    = "fsetxattr",  .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+	{ .name	    = "fstat",	    .errmsg = true, .alias = "newfstat",
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+	{ .name	    = "fstatat",    .errmsg = true, .alias = "newfstatat",
+	  .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, 
+	{ .name	    = "fstatfs",    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+	{ .name	    = "fsync",    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+	{ .name	    = "ftruncate", .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
 	{ .name	    = "futex",	    .errmsg = true,
 	  .arg_scnprintf = { [1] = SCA_FUTEX_OP, /* op */ }, },
+	{ .name	    = "futimesat", .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, 
+	{ .name	    = "getdents",   .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+	{ .name	    = "getdents64", .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
 	{ .name	    = "getitimer",  .errmsg = true, STRARRAY(0, which, itimers), },
 	{ .name	    = "getrlimit",  .errmsg = true, STRARRAY(0, resource, rlimit_resources), },
 	{ .name	    = "ioctl",	    .errmsg = true,
-	  .arg_scnprintf = { [2] = SCA_HEX, /* arg */ }, },
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ 
+			     [2] = SCA_HEX, /* arg */ }, },
 	{ .name	    = "kill",	    .errmsg = true,
 	  .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
-	{ .name	    = "lseek",	    .errmsg = true, STRARRAY(2, whence, whences), },
+	{ .name	    = "linkat",	    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, 
+	{ .name	    = "lseek",	    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */
+			     [2] = SCA_STRARRAY, /* whence */ },
+	  .arg_parm	 = { [2] = &strarray__whences, /* whence */ }, },
 	{ .name	    = "lstat",	    .errmsg = true, .alias = "newlstat", },
 	{ .name     = "madvise",    .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_HEX,	 /* start */
 			     [2] = SCA_MADV_BHV, /* behavior */ }, },
+	{ .name	    = "mkdirat",    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, 
+	{ .name	    = "mknodat",    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FDAT, /* fd */ }, }, 
 	{ .name	    = "mlock",	    .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
 	{ .name	    = "mlockall",   .errmsg = true,
@@ -653,26 +734,45 @@ static struct syscall_fmt {
 	  .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
 	{ .name	    = "munmap",	    .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
+	{ .name	    = "name_to_handle_at", .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, 
+	{ .name	    = "newfstatat", .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, 
 	{ .name	    = "open",	    .errmsg = true,
 	  .arg_scnprintf = { [1] = SCA_OPEN_FLAGS, /* flags */ }, },
 	{ .name	    = "open_by_handle_at", .errmsg = true,
-	  .arg_scnprintf = { [2] = SCA_OPEN_FLAGS, /* flags */ }, },
+	  .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */
+			     [2] = SCA_OPEN_FLAGS, /* flags */ }, },
 	{ .name	    = "openat",	    .errmsg = true,
-	  .arg_scnprintf = { [2] = SCA_OPEN_FLAGS, /* flags */ }, },
+	  .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */
+			     [2] = SCA_OPEN_FLAGS, /* flags */ }, },
 	{ .name	    = "pipe2",	    .errmsg = true,
 	  .arg_scnprintf = { [1] = SCA_PIPE_FLAGS, /* flags */ }, },
 	{ .name	    = "poll",	    .errmsg = true, .timeout = true, },
 	{ .name	    = "ppoll",	    .errmsg = true, .timeout = true, },
-	{ .name	    = "pread",	    .errmsg = true, .alias = "pread64", },
+	{ .name	    = "pread",	    .errmsg = true, .alias = "pread64",
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+	{ .name	    = "preadv",	    .errmsg = true, .alias = "pread",
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
 	{ .name	    = "prlimit64",  .errmsg = true, STRARRAY(1, resource, rlimit_resources), },
-	{ .name	    = "pwrite",	    .errmsg = true, .alias = "pwrite64", },
-	{ .name	    = "read",	    .errmsg = true, },
+	{ .name	    = "pwrite",	    .errmsg = true, .alias = "pwrite64",
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+	{ .name	    = "pwritev",    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+	{ .name	    = "read",	    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+	{ .name	    = "readlinkat", .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, 
+	{ .name	    = "readv",	    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
 	{ .name	    = "recvfrom",   .errmsg = true,
 	  .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
 	{ .name	    = "recvmmsg",   .errmsg = true,
 	  .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
 	{ .name	    = "recvmsg",    .errmsg = true,
 	  .arg_scnprintf = { [2] = SCA_MSG_FLAGS, /* flags */ }, },
+	{ .name	    = "renameat",   .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, 
 	{ .name	    = "rt_sigaction", .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_SIGNUM, /* sig */ }, },
 	{ .name	    = "rt_sigprocmask",  .errmsg = true, STRARRAY(0, how, sighow), },
@@ -689,6 +789,8 @@ static struct syscall_fmt {
 	  .arg_scnprintf = { [3] = SCA_MSG_FLAGS, /* flags */ }, },
 	{ .name	    = "setitimer",  .errmsg = true, STRARRAY(0, which, itimers), },
 	{ .name	    = "setrlimit",  .errmsg = true, STRARRAY(0, resource, rlimit_resources), },
+	{ .name	    = "shutdown",   .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
 	{ .name	    = "socket",	    .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_STRARRAY, /* family */
 			     [1] = SCA_SK_TYPE, /* type */ },
@@ -698,11 +800,21 @@ static struct syscall_fmt {
 			     [1] = SCA_SK_TYPE, /* type */ },
 	  .arg_parm	 = { [0] = &strarray__socket_families, /* family */ }, },
 	{ .name	    = "stat",	    .errmsg = true, .alias = "newstat", },
+	{ .name	    = "symlinkat",  .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, }, 
 	{ .name	    = "tgkill",	    .errmsg = true,
 	  .arg_scnprintf = { [2] = SCA_SIGNUM, /* sig */ }, },
 	{ .name	    = "tkill",	    .errmsg = true,
 	  .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
 	{ .name	    = "uname",	    .errmsg = true, .alias = "newuname", },
+	{ .name	    = "unlinkat",   .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FDAT, /* dfd */ }, },
+	{ .name	    = "utimensat",  .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FDAT, /* dirfd */ }, },
+	{ .name	    = "write",	    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
+	{ .name	    = "writev",	    .errmsg = true,
+	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ }, }, 
 };
 
 static int syscall_fmt__cmp(const void *name, const void *fmtp)
@@ -747,11 +859,20 @@ struct thread_trace {
 	unsigned long	  nr_events;
 	char		  *entry_str;
 	double		  runtime_ms;
+	struct {
+		int	  max;
+		char	  **table;
+	} paths;
 };
 
 static struct thread_trace *thread_trace__new(void)
 {
-	return zalloc(sizeof(struct thread_trace));
+	struct thread_trace *ttrace =  zalloc(sizeof(struct thread_trace));
+
+	if (ttrace)
+		ttrace->paths.max = -1;
+
+	return ttrace;
 }
 
 static struct thread_trace *thread__trace(struct thread *thread, FILE *fp)
@@ -792,6 +913,7 @@ struct trace {
 	unsigned long		nr_events;
 	struct strlist		*ev_qualifier;
 	bool			not_ev_qualifier;
+	bool			live;
 	struct intlist		*tid_list;
 	struct intlist		*pid_list;
 	bool			sched;
@@ -801,6 +923,98 @@ struct trace {
 	double			runtime_ms;
 };
 
+static int thread__read_fd_path(struct thread *thread, int fd)
+{
+	struct thread_trace *ttrace = thread->priv;
+	char linkname[PATH_MAX], pathname[PATH_MAX];
+	struct stat st;
+	int ret;
+
+	if (thread->pid_ == thread->tid) {
+		scnprintf(linkname, sizeof(linkname),
+			  "/proc/%d/fd/%d", thread->pid_, fd);
+	} else {
+		scnprintf(linkname, sizeof(linkname),
+			  "/proc/%d/task/%d/fd/%d", thread->pid_, thread->tid, fd);
+	}
+
+	if (lstat(linkname, &st) < 0 || st.st_size + 1 > (off_t)sizeof(pathname))
+		return -1;
+
+	ret = readlink(linkname, pathname, sizeof(pathname));
+
+	if (ret < 0 || ret > st.st_size)
+		return -1;
+
+	pathname[ret] = '\0';
+
+	if (fd > ttrace->paths.max) {
+		char **npath = realloc(ttrace->paths.table, (fd + 1) * sizeof(char *));
+
+		if (npath == NULL)
+			return -1;
+
+		if (ttrace->paths.max != -1) {
+			memset(npath + ttrace->paths.max + 1, 0,
+			       (fd - ttrace->paths.max) * sizeof(char *));
+		} else {
+			memset(npath, 0, (fd + 1) * sizeof(char *));
+		}
+
+		ttrace->paths.table = npath;
+		ttrace->paths.max   = fd;
+	}
+
+	ttrace->paths.table[fd] = strdup(pathname);
+
+	return ttrace->paths.table[fd] != NULL ? 0 : -1;
+}
+
+static const char *thread__fd_path(struct thread *thread, int fd, bool live)
+{
+	struct thread_trace *ttrace = thread->priv;
+
+	if (ttrace == NULL)
+		return NULL;
+
+	if (fd < 0)
+		return NULL;
+
+	if ((fd > ttrace->paths.max || ttrace->paths.table[fd] == NULL) &&
+	    (!live || thread__read_fd_path(thread, fd)))
+		return NULL;
+
+	return ttrace->paths.table[fd];
+}
+
+static size_t syscall_arg__scnprintf_fd(char *bf, size_t size,
+					struct syscall_arg *arg)
+{
+	int fd = arg->val;
+	size_t printed = scnprintf(bf, size, "%d", fd);
+	const char *path = thread__fd_path(arg->thread, fd, arg->trace->live);
+
+	if (path)
+		printed += scnprintf(bf + printed, size - printed, "<%s>", path);
+
+	return printed;
+}
+
+static size_t syscall_arg__scnprintf_close_fd(char *bf, size_t size,
+					      struct syscall_arg *arg)
+{
+	int fd = arg->val;
+	size_t printed = syscall_arg__scnprintf_fd(bf, size, arg);
+	struct thread_trace *ttrace = arg->thread->priv;
+
+	if (ttrace && fd >= 0 && fd <= ttrace->paths.max) {
+		free(ttrace->paths.table[fd]);
+		ttrace->paths.table[fd] = NULL;
+	}
+
+	return printed;
+}
+
 static bool trace__filter_duration(struct trace *trace, double t)
 {
 	return t < (trace->duration_filter * NSEC_PER_MSEC);
@@ -969,7 +1183,8 @@ static int trace__read_syscall_info(struct trace *trace, int id)
 }
 
 static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size,
-				      unsigned long *args)
+				      unsigned long *args, struct trace *trace,
+				      struct thread *thread)
 {
 	size_t printed = 0;
 
@@ -977,8 +1192,10 @@ static size_t syscall__scnprintf_args(struct syscall *sc, char *bf, size_t size,
 		struct format_field *field;
 		u8 bit = 1;
 		struct syscall_arg arg = {
-			.idx  = 0,
-			.mask = 0,
+			.idx	= 0,
+			.mask	= 0,
+			.trace  = trace,
+			.thread = thread,
 		};
 
 		for (field = sc->tp_format->format.fields->next; field;
@@ -1111,7 +1328,8 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
 	msg = ttrace->entry_str;
 	printed += scnprintf(msg + printed, 1024 - printed, "%s(", sc->name);
 
-	printed += syscall__scnprintf_args(sc, msg + printed, 1024 - printed,  args);
+	printed += syscall__scnprintf_args(sc, msg + printed, 1024 - printed,
+					   args, trace, thread);
 
 	if (!strcmp(sc->name, "exit_group") || !strcmp(sc->name, "exit")) {
 		if (!trace->duration_filter) {
@@ -1292,6 +1510,8 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
 	unsigned long before;
 	const bool forks = argc > 0;
 
+	trace->live = true;
+
 	if (evlist == NULL) {
 		fprintf(trace->output, "Not enough memory to run!\n");
 		goto out;
@@ -1423,6 +1643,7 @@ out_delete_maps:
 out_delete_evlist:
 	perf_evlist__delete(evlist);
 out:
+	trace->live = false;
 	return err;
 }
 
-- 
cgit 


From 02e483f66deb6bd8df6af450726574614eb53be3 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Wed, 2 Oct 2013 21:39:39 -0700
Subject: pinctrl: single: Prepare for supporting SoC specific features

Let's replace is_pinconf with flags and add struct pcs_soc_data
so we can support SoC specific features like pin wake-up events.

Done in collaboration with Roger Quadros <rogerq@ti.com>.

Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Prakash Manjunathappa <prakash.pm@ti.com>
Cc: linux-kernel@vger.kernel.org
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 drivers/pinctrl/pinctrl-single.c | 38 +++++++++++++++++++++++++++++---------
 1 file changed, 29 insertions(+), 9 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index a82ace4d9a20..f88d3d1b2b99 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -149,6 +149,14 @@ struct pcs_name {
 	char name[PCS_REG_NAME_LEN];
 };
 
+/**
+ * struct pcs_soc_data - SoC specific settings
+ * @flags:	initial SoC specific PCS_FEAT_xxx values
+ */
+struct pcs_soc_data {
+	unsigned flags;
+};
+
 /**
  * struct pcs_device - pinctrl device instance
  * @res:	resources
@@ -156,13 +164,13 @@ struct pcs_name {
  * @size:	size of the ioremapped area
  * @dev:	device entry
  * @pctl:	pin controller device
+ * @flags:	mask of PCS_FEAT_xxx values
  * @mutex:	mutex protecting the lists
  * @width:	bits per mux register
  * @fmask:	function register mask
  * @fshift:	function register shift
  * @foff:	value to turn mux off
  * @fmax:	max number of functions in fmask
- * @is_pinconf:	whether supports pinconf
  * @bits_per_pin:number of bits per pin
  * @names:	array of register names for pins
  * @pins:	physical pins on the SoC
@@ -183,6 +191,8 @@ struct pcs_device {
 	unsigned size;
 	struct device *dev;
 	struct pinctrl_dev *pctl;
+	unsigned flags;
+#define PCS_FEAT_PINCONF	(1 << 0)
 	struct mutex mutex;
 	unsigned width;
 	unsigned fmask;
@@ -190,7 +200,6 @@ struct pcs_device {
 	unsigned foff;
 	unsigned fmax;
 	bool bits_per_mux;
-	bool is_pinconf;
 	unsigned bits_per_pin;
 	struct pcs_name *names;
 	struct pcs_data pins;
@@ -206,6 +215,8 @@ struct pcs_device {
 	void (*write)(unsigned val, void __iomem *reg);
 };
 
+#define PCS_HAS_PINCONF		(pcs->flags & PCS_FEAT_PINCONF)
+
 static int pcs_pinconf_get(struct pinctrl_dev *pctldev, unsigned pin,
 			   unsigned long *config);
 static int pcs_pinconf_set(struct pinctrl_dev *pctldev, unsigned pin,
@@ -1060,7 +1071,7 @@ static int pcs_parse_pinconf(struct pcs_device *pcs, struct device_node *np,
 	};
 
 	/* If pinconf isn't supported, don't parse properties in below. */
-	if (!pcs->is_pinconf)
+	if (!PCS_HAS_PINCONF)
 		return 0;
 
 	/* cacluate how much properties are supported in current node */
@@ -1184,7 +1195,7 @@ static int pcs_parse_one_pinctrl_entry(struct pcs_device *pcs,
 	(*map)->data.mux.group = np->name;
 	(*map)->data.mux.function = np->name;
 
-	if (pcs->is_pinconf) {
+	if (PCS_HAS_PINCONF) {
 		res = pcs_parse_pinconf(pcs, np, function, map);
 		if (res)
 			goto free_pingroups;
@@ -1305,7 +1316,7 @@ static int pcs_parse_bits_in_pinctrl_entry(struct pcs_device *pcs,
 	(*map)->data.mux.group = np->name;
 	(*map)->data.mux.function = np->name;
 
-	if (pcs->is_pinconf) {
+	if (PCS_HAS_PINCONF) {
 		dev_err(pcs->dev, "pinconf not supported\n");
 		goto free_pingroups;
 	}
@@ -1525,6 +1536,7 @@ static int pcs_probe(struct platform_device *pdev)
 	const struct of_device_id *match;
 	struct resource *res;
 	struct pcs_device *pcs;
+	const struct pcs_soc_data *soc;
 	int ret;
 
 	match = of_match_device(pcs_of_match, &pdev->dev);
@@ -1541,7 +1553,8 @@ static int pcs_probe(struct platform_device *pdev)
 	INIT_LIST_HEAD(&pcs->pingroups);
 	INIT_LIST_HEAD(&pcs->functions);
 	INIT_LIST_HEAD(&pcs->gpiofuncs);
-	pcs->is_pinconf = match->data;
+	soc = match->data;
+	pcs->flags = soc->flags;
 
 	PCS_GET_PROP_U32("pinctrl-single,register-width", &pcs->width,
 			 "register width not specified\n");
@@ -1610,7 +1623,7 @@ static int pcs_probe(struct platform_device *pdev)
 	pcs->desc.name = DRIVER_NAME;
 	pcs->desc.pctlops = &pcs_pinctrl_ops;
 	pcs->desc.pmxops = &pcs_pinmux_ops;
-	if (pcs->is_pinconf)
+	if (PCS_HAS_PINCONF)
 		pcs->desc.confops = &pcs_pinconf_ops;
 	pcs->desc.owner = THIS_MODULE;
 
@@ -1652,9 +1665,16 @@ static int pcs_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct pcs_soc_data pinctrl_single = {
+};
+
+static const struct pcs_soc_data pinconf_single = {
+	.flags = PCS_FEAT_PINCONF,
+};
+
 static struct of_device_id pcs_of_match[] = {
-	{ .compatible = "pinctrl-single", .data = (void *)false },
-	{ .compatible = "pinconf-single", .data = (void *)true },
+	{ .compatible = "pinctrl-single", .data = &pinctrl_single },
+	{ .compatible = "pinconf-single", .data = &pinconf_single },
 	{ },
 };
 MODULE_DEVICE_TABLE(of, pcs_of_match);
-- 
cgit 


From 071fb4cbe01cb418264143cf49612a8d23cfaf4e Mon Sep 17 00:00:00 2001
From: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Date: Mon, 7 Oct 2013 10:38:41 -0500
Subject: ARM: socfpga: dts: Move common nodes to cyclone5 dtsi

The current socfpga_cyclone5.dts describes the Altera Cyclone5 SoC Development
Kit. The Cyclone5 includes a SoCFPGA, which itself can be included in other
SoC+FPGA combinations.

Instead of having to describe all Cyclone5 common nodes in every board specific
dts, move socfpga_cyclone5.dts to a dtsi and include this in a new dts for the
Development Kit.

[Dinh Nguyen] - Changed to 115200 for baudrate in dts bootargs

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
---
 arch/arm/boot/dts/Makefile                   |  2 +-
 arch/arm/boot/dts/socfpga_cyclone5.dts       | 85 ----------------------------
 arch/arm/boot/dts/socfpga_cyclone5.dtsi      | 65 +++++++++++++++++++++
 arch/arm/boot/dts/socfpga_cyclone5_socdk.dts | 40 +++++++++++++
 4 files changed, 106 insertions(+), 86 deletions(-)
 delete mode 100644 arch/arm/boot/dts/socfpga_cyclone5.dts
 create mode 100644 arch/arm/boot/dts/socfpga_cyclone5.dtsi
 create mode 100644 arch/arm/boot/dts/socfpga_cyclone5_socdk.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index e95af3f5433b..430ba19b2f87 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -211,7 +211,7 @@ dtb-$(CONFIG_ARCH_SHMOBILE) += emev2-kzm9d.dtb \
 	r8a73a4-ape6evm-reference.dtb \
 	sh7372-mackerel.dtb
 dtb-$(CONFIG_ARCH_SHMOBILE_MULTI) += emev2-kzm9d-reference.dtb
-dtb-$(CONFIG_ARCH_SOCFPGA) += socfpga_cyclone5.dtb \
+dtb-$(CONFIG_ARCH_SOCFPGA) += socfpga_cyclone5_socdk.dtb \
 	socfpga_vt.dtb
 dtb-$(CONFIG_ARCH_SPEAR13XX) += spear1310-evb.dtb \
 	spear1340-evb.dtb
diff --git a/arch/arm/boot/dts/socfpga_cyclone5.dts b/arch/arm/boot/dts/socfpga_cyclone5.dts
deleted file mode 100644
index 973999d2c697..000000000000
--- a/arch/arm/boot/dts/socfpga_cyclone5.dts
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- *  Copyright (C) 2012 Altera Corporation <www.altera.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-/dts-v1/;
-/include/ "socfpga.dtsi"
-
-/ {
-	model = "Altera SOCFPGA Cyclone V";
-	compatible = "altr,socfpga-cyclone5", "altr,socfpga";
-
-	chosen {
-		bootargs = "console=ttyS0,57600";
-	};
-
-	memory {
-		name = "memory";
-		device_type = "memory";
-		reg = <0x0 0x40000000>; /* 1GB */
-	};
-
-	aliases {
-		/* this allow the ethaddr uboot environmnet variable contents
-		 * to be added to the gmac1 device tree blob.
-		 */
-		ethernet0 = &gmac1;
-	};
-
-	soc {
-		clkmgr@ffd04000 {
-			clocks {
-				osc1 {
-					clock-frequency = <25000000>;
-				};
-			};
-		};
-
-		ethernet@ff702000 {
-			phy-mode = "rgmii";
-			phy-addr = <0xffffffff>; /* probe for phy addr */
-			status = "okay";
-		};
-
-		timer0@ffc08000 {
-			clock-frequency = <100000000>;
-		};
-
-		timer1@ffc09000 {
-			clock-frequency = <100000000>;
-		};
-
-		timer2@ffd00000 {
-			clock-frequency = <25000000>;
-		};
-
-		timer3@ffd01000 {
-			clock-frequency = <25000000>;
-		};
-
-		serial0@ffc02000 {
-			clock-frequency = <100000000>;
-		};
-
-		serial1@ffc03000 {
-			clock-frequency = <100000000>;
-		};
-
-		sysmgr@ffd08000 {
-			cpu1-start-addr = <0xffd080c4>;
-		};
-	};
-};
diff --git a/arch/arm/boot/dts/socfpga_cyclone5.dtsi b/arch/arm/boot/dts/socfpga_cyclone5.dtsi
new file mode 100644
index 000000000000..a8716f6dbe2e
--- /dev/null
+++ b/arch/arm/boot/dts/socfpga_cyclone5.dtsi
@@ -0,0 +1,65 @@
+/*
+ *  Copyright (C) 2012 Altera Corporation <www.altera.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/dts-v1/;
+/include/ "socfpga.dtsi"
+
+/ {
+	soc {
+		clkmgr@ffd04000 {
+			clocks {
+				osc1 {
+					clock-frequency = <25000000>;
+				};
+			};
+		};
+
+		ethernet@ff702000 {
+			phy-mode = "rgmii";
+			phy-addr = <0xffffffff>; /* probe for phy addr */
+			status = "okay";
+		};
+
+		timer0@ffc08000 {
+			clock-frequency = <100000000>;
+		};
+
+		timer1@ffc09000 {
+			clock-frequency = <100000000>;
+		};
+
+		timer2@ffd00000 {
+			clock-frequency = <25000000>;
+		};
+
+		timer3@ffd01000 {
+			clock-frequency = <25000000>;
+		};
+
+		serial0@ffc02000 {
+			clock-frequency = <100000000>;
+		};
+
+		serial1@ffc03000 {
+			clock-frequency = <100000000>;
+		};
+
+		sysmgr@ffd08000 {
+			cpu1-start-addr = <0xffd080c4>;
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts b/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
new file mode 100644
index 000000000000..2ee52ab8cabb
--- /dev/null
+++ b/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
@@ -0,0 +1,40 @@
+/*
+ *  Copyright (C) 2012 Altera Corporation <www.altera.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/include/ "socfpga_cyclone5.dtsi"
+
+/ {
+	model = "Altera SOCFPGA Cyclone V SoC Development Kit";
+	compatible = "altr,socfpga-cyclone5", "altr,socfpga";
+
+	chosen {
+		bootargs = "console=ttyS0,115200";
+	};
+
+	memory {
+		name = "memory";
+		device_type = "memory";
+		reg = <0x0 0x40000000>; /* 1GB */
+	};
+
+	aliases {
+		/* this allow the ethaddr uboot environmnet variable contents
+		 * to be added to the gmac1 device tree blob.
+		 */
+		ethernet0 = &gmac1;
+	};
+};
-- 
cgit 


From 47ba5c815a341899035a35f7b58fbe1f1deee880 Mon Sep 17 00:00:00 2001
From: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Date: Mon, 7 Oct 2013 10:41:32 -0500
Subject: ARM: socfpga: dts: Add support for terasic SoCkit

This adds basic support for the terasic SoCkit board.
The board includes an Altera Cyclone 5 SoC.

[Dinh Nguyen] - Changed to 115200 for baudrate in dts bootargs

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
---
 arch/arm/boot/dts/Makefile                    |  1 +
 arch/arm/boot/dts/socfpga_cyclone5_sockit.dts | 37 +++++++++++++++++++++++++++
 2 files changed, 38 insertions(+)
 create mode 100644 arch/arm/boot/dts/socfpga_cyclone5_sockit.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 430ba19b2f87..9414342169b1 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -212,6 +212,7 @@ dtb-$(CONFIG_ARCH_SHMOBILE) += emev2-kzm9d.dtb \
 	sh7372-mackerel.dtb
 dtb-$(CONFIG_ARCH_SHMOBILE_MULTI) += emev2-kzm9d-reference.dtb
 dtb-$(CONFIG_ARCH_SOCFPGA) += socfpga_cyclone5_socdk.dtb \
+	socfpga_cyclone5_sockit.dtb \
 	socfpga_vt.dtb
 dtb-$(CONFIG_ARCH_SPEAR13XX) += spear1310-evb.dtb \
 	spear1340-evb.dtb
diff --git a/arch/arm/boot/dts/socfpga_cyclone5_sockit.dts b/arch/arm/boot/dts/socfpga_cyclone5_sockit.dts
new file mode 100644
index 000000000000..50b99a2c12ae
--- /dev/null
+++ b/arch/arm/boot/dts/socfpga_cyclone5_sockit.dts
@@ -0,0 +1,37 @@
+/*
+ *  Copyright (C) 2013 Steffen Trumtrar <s.trumtrar@pengutronix.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/include/ "socfpga_cyclone5.dtsi"
+
+/ {
+	model = "Terasic SoCkit";
+	compatible = "altr,socfpga-cyclone5", "altr,socfpga";
+
+	chosen {
+		bootargs = "console=ttyS0,115200";
+	};
+
+	memory {
+		name = "memory";
+		device_type = "memory";
+		reg = <0x0 0x40000000>; /* 1GB */
+	};
+};
+
+&gmac1 {
+	status = "okay";
+};
-- 
cgit 


From 7857d560da4a8c9d14f64bb765f64d8150da5d3c Mon Sep 17 00:00:00 2001
From: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Date: Mon, 7 Oct 2013 10:44:07 -0500
Subject: ARM: socfpga: dts: cleanup indentation

Some of the clock nodes and the rst-/sysmgr use wrong indentation.
Fix it.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
---
 arch/arm/boot/dts/socfpga.dtsi | 290 ++++++++++++++++++++---------------------
 1 file changed, 145 insertions(+), 145 deletions(-)

diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index e7260ca9eaf1..0207a6af5fd2 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -243,197 +243,197 @@
 						};
 					};
 
-				mpu_periph_clk: mpu_periph_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&mpuclk>;
-					fixed-divider = <4>;
+					mpu_periph_clk: mpu_periph_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&mpuclk>;
+						fixed-divider = <4>;
 					};
 
-				mpu_l2_ram_clk: mpu_l2_ram_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&mpuclk>;
-					fixed-divider = <2>;
+					mpu_l2_ram_clk: mpu_l2_ram_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&mpuclk>;
+						fixed-divider = <2>;
 					};
 
-				l4_main_clk: l4_main_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&mainclk>;
-					clk-gate = <0x60 0>;
+					l4_main_clk: l4_main_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&mainclk>;
+						clk-gate = <0x60 0>;
 					};
 
-				l3_main_clk: l3_main_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&mainclk>;
+					l3_main_clk: l3_main_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&mainclk>;
 					};
 
-				l3_mp_clk: l3_mp_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&mainclk>;
-					div-reg = <0x64 0 2>;
-					clk-gate = <0x60 1>;
+					l3_mp_clk: l3_mp_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&mainclk>;
+						div-reg = <0x64 0 2>;
+						clk-gate = <0x60 1>;
 					};
 
-				l3_sp_clk: l3_sp_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&mainclk>;
-					div-reg = <0x64 2 2>;
-				};
+					l3_sp_clk: l3_sp_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&mainclk>;
+						div-reg = <0x64 2 2>;
+					};
 
-				l4_mp_clk: l4_mp_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&mainclk>, <&per_base_clk>;
-					div-reg = <0x64 4 3>;
-					clk-gate = <0x60 2>;
+					l4_mp_clk: l4_mp_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&mainclk>, <&per_base_clk>;
+						div-reg = <0x64 4 3>;
+						clk-gate = <0x60 2>;
 					};
 
-				l4_sp_clk: l4_sp_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&mainclk>, <&per_base_clk>;
-					div-reg = <0x64 7 3>;
-					clk-gate = <0x60 3>;
+					l4_sp_clk: l4_sp_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&mainclk>, <&per_base_clk>;
+						div-reg = <0x64 7 3>;
+						clk-gate = <0x60 3>;
 					};
 
-				dbg_at_clk: dbg_at_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&dbg_base_clk>;
-					div-reg = <0x68 0 2>;
-					clk-gate = <0x60 4>;
+					dbg_at_clk: dbg_at_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&dbg_base_clk>;
+						div-reg = <0x68 0 2>;
+						clk-gate = <0x60 4>;
 					};
 
-				dbg_clk: dbg_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&dbg_base_clk>;
-					div-reg = <0x68 2 2>;
-					clk-gate = <0x60 5>;
+					dbg_clk: dbg_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&dbg_base_clk>;
+						div-reg = <0x68 2 2>;
+						clk-gate = <0x60 5>;
 					};
 
-				dbg_trace_clk: dbg_trace_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&dbg_base_clk>;
-					div-reg = <0x6C 0 3>;
-					clk-gate = <0x60 6>;
+					dbg_trace_clk: dbg_trace_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&dbg_base_clk>;
+						div-reg = <0x6C 0 3>;
+						clk-gate = <0x60 6>;
 					};
 
-				dbg_timer_clk: dbg_timer_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&dbg_base_clk>;
-					clk-gate = <0x60 7>;
+					dbg_timer_clk: dbg_timer_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&dbg_base_clk>;
+						clk-gate = <0x60 7>;
 					};
 
-				cfg_clk: cfg_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&cfg_s2f_usr0_clk>;
-					clk-gate = <0x60 8>;
+					cfg_clk: cfg_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&cfg_s2f_usr0_clk>;
+						clk-gate = <0x60 8>;
 					};
 
-				s2f_user0_clk: s2f_user0_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&cfg_s2f_usr0_clk>;
-					clk-gate = <0x60 9>;
+					s2f_user0_clk: s2f_user0_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&cfg_s2f_usr0_clk>;
+						clk-gate = <0x60 9>;
 					};
 
-				emac_0_clk: emac_0_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&emac0_clk>;
-					clk-gate = <0xa0 0>;
+					emac_0_clk: emac_0_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&emac0_clk>;
+						clk-gate = <0xa0 0>;
 					};
 
-				emac_1_clk: emac_1_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&emac1_clk>;
-					clk-gate = <0xa0 1>;
+					emac_1_clk: emac_1_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&emac1_clk>;
+						clk-gate = <0xa0 1>;
 					};
 
-				usb_mp_clk: usb_mp_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&per_base_clk>;
-					clk-gate = <0xa0 2>;
-					div-reg = <0xa4 0 3>;
+					usb_mp_clk: usb_mp_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&per_base_clk>;
+						clk-gate = <0xa0 2>;
+						div-reg = <0xa4 0 3>;
 					};
 
-				spi_m_clk: spi_m_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&per_base_clk>;
-					clk-gate = <0xa0 3>;
-					div-reg = <0xa4 3 3>;
+					spi_m_clk: spi_m_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&per_base_clk>;
+						clk-gate = <0xa0 3>;
+						div-reg = <0xa4 3 3>;
 					};
 
-				can0_clk: can0_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&per_base_clk>;
-					clk-gate = <0xa0 4>;
-					div-reg = <0xa4 6 3>;
+					can0_clk: can0_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&per_base_clk>;
+						clk-gate = <0xa0 4>;
+						div-reg = <0xa4 6 3>;
 					};
 
-				can1_clk: can1_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&per_base_clk>;
-					clk-gate = <0xa0 5>;
-					div-reg = <0xa4 9 3>;
+					can1_clk: can1_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&per_base_clk>;
+						clk-gate = <0xa0 5>;
+						div-reg = <0xa4 9 3>;
 					};
 
-				gpio_db_clk: gpio_db_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&per_base_clk>;
-					clk-gate = <0xa0 6>;
-					div-reg = <0xa8 0 24>;
+					gpio_db_clk: gpio_db_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&per_base_clk>;
+						clk-gate = <0xa0 6>;
+						div-reg = <0xa8 0 24>;
 					};
 
-				s2f_user1_clk: s2f_user1_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&s2f_usr1_clk>;
-					clk-gate = <0xa0 7>;
+					s2f_user1_clk: s2f_user1_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&s2f_usr1_clk>;
+						clk-gate = <0xa0 7>;
 					};
 
-				sdmmc_clk: sdmmc_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&f2s_periph_ref_clk>, <&main_nand_sdmmc_clk>, <&per_nand_mmc_clk>;
-					clk-gate = <0xa0 8>;
+					sdmmc_clk: sdmmc_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&f2s_periph_ref_clk>, <&main_nand_sdmmc_clk>, <&per_nand_mmc_clk>;
+						clk-gate = <0xa0 8>;
 					};
 
-				nand_x_clk: nand_x_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&f2s_periph_ref_clk>, <&main_nand_sdmmc_clk>, <&per_nand_mmc_clk>;
-					clk-gate = <0xa0 9>;
+					nand_x_clk: nand_x_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&f2s_periph_ref_clk>, <&main_nand_sdmmc_clk>, <&per_nand_mmc_clk>;
+						clk-gate = <0xa0 9>;
 					};
 
-				nand_clk: nand_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&f2s_periph_ref_clk>, <&main_nand_sdmmc_clk>, <&per_nand_mmc_clk>;
-					clk-gate = <0xa0 10>;
-					fixed-divider = <4>;
+					nand_clk: nand_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&f2s_periph_ref_clk>, <&main_nand_sdmmc_clk>, <&per_nand_mmc_clk>;
+						clk-gate = <0xa0 10>;
+						fixed-divider = <4>;
 					};
 
-				qspi_clk: qspi_clk {
-					#clock-cells = <0>;
-					compatible = "altr,socfpga-gate-clk";
-					clocks = <&f2s_periph_ref_clk>, <&main_qspi_clk>, <&per_qspi_clk>;
-					clk-gate = <0xa0 11>;
+					qspi_clk: qspi_clk {
+						#clock-cells = <0>;
+						compatible = "altr,socfpga-gate-clk";
+						clocks = <&f2s_periph_ref_clk>, <&main_qspi_clk>, <&per_qspi_clk>;
+						clk-gate = <0xa0 11>;
 					};
 				};
 			};
@@ -517,9 +517,9 @@
 		};
 
 		rstmgr@ffd05000 {
-				compatible = "altr,rst-mgr";
-				reg = <0xffd05000 0x1000>;
-			};
+			compatible = "altr,rst-mgr";
+			reg = <0xffd05000 0x1000>;
+		};
 
 		sysmgr@ffd08000 {
 				compatible = "altr,sys-mgr";
-- 
cgit 


From 01ed80b07dadc8747468bd738c8cbfcaf0169866 Mon Sep 17 00:00:00 2001
From: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Date: Mon, 7 Oct 2013 11:11:38 -0500
Subject: ARM: socfpga: dts: fix s2f_* clock name

The s2f_* clocks are called h2f_* in the datasheets.
Rename them accordingly in the socfpga.dtsi.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
---
 arch/arm/boot/dts/socfpga.dtsi | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index 0207a6af5fd2..6d09b8d42fdd 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -147,7 +147,7 @@
 							reg = <0x58>;
 						};
 
-						cfg_s2f_usr0_clk: cfg_s2f_usr0_clk {
+						cfg_h2f_usr0_clk: cfg_h2f_usr0_clk {
 							#clock-cells = <0>;
 							compatible = "altr,socfpga-perip-clk";
 							clocks = <&main_pll>;
@@ -198,7 +198,7 @@
 							reg = <0x98>;
 						};
 
-						s2f_usr1_clk: s2f_usr1_clk {
+						h2f_usr1_clk: h2f_usr1_clk {
 							#clock-cells = <0>;
 							compatible = "altr,socfpga-perip-clk";
 							clocks = <&periph_pll>;
@@ -235,7 +235,7 @@
 							reg = <0xD0>;
 						};
 
-						s2f_usr2_clk: s2f_usr2_clk {
+						h2f_usr2_clk: h2f_usr2_clk {
 							#clock-cells = <0>;
 							compatible = "altr,socfpga-perip-clk";
 							clocks = <&sdram_pll>;
@@ -335,14 +335,14 @@
 					cfg_clk: cfg_clk {
 						#clock-cells = <0>;
 						compatible = "altr,socfpga-gate-clk";
-						clocks = <&cfg_s2f_usr0_clk>;
+						clocks = <&cfg_h2f_usr0_clk>;
 						clk-gate = <0x60 8>;
 					};
 
-					s2f_user0_clk: s2f_user0_clk {
+					h2f_user0_clk: h2f_user0_clk {
 						#clock-cells = <0>;
 						compatible = "altr,socfpga-gate-clk";
-						clocks = <&cfg_s2f_usr0_clk>;
+						clocks = <&cfg_h2f_usr0_clk>;
 						clk-gate = <0x60 9>;
 					};
 
@@ -400,10 +400,10 @@
 						div-reg = <0xa8 0 24>;
 					};
 
-					s2f_user1_clk: s2f_user1_clk {
+					h2f_user1_clk: h2f_user1_clk {
 						#clock-cells = <0>;
 						compatible = "altr,socfpga-gate-clk";
-						clocks = <&s2f_usr1_clk>;
+						clocks = <&h2f_usr1_clk>;
 						clk-gate = <0xa0 7>;
 					};
 
-- 
cgit 


From 163a036468c2eb8f30658dff6c0de6c959f79b0d Mon Sep 17 00:00:00 2001
From: Dinh Nguyen <dinguyen@altera.com>
Date: Wed, 25 Sep 2013 15:38:20 -0500
Subject: dts: socfpga: Add support for Altera's SOCFPGA Arria V board

Add support for a new SOCFPGA board that has an Arria V FPGA along with
dual ARM Cortex-A9 cores.

Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
Cc: Pavel Machek <pavel@denx.de>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: devicetree@vger.kernel.org
CC: linux-arm-kernel@lists.infradead.org
---
 arch/arm/boot/dts/Makefile                 |  3 +-
 arch/arm/boot/dts/socfpga_arria5.dtsi      | 58 ++++++++++++++++++++++++++++++
 arch/arm/boot/dts/socfpga_arria5_socdk.dts | 40 +++++++++++++++++++++
 3 files changed, 100 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/boot/dts/socfpga_arria5.dtsi
 create mode 100644 arch/arm/boot/dts/socfpga_arria5_socdk.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 9414342169b1..59c1616fe061 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -211,7 +211,8 @@ dtb-$(CONFIG_ARCH_SHMOBILE) += emev2-kzm9d.dtb \
 	r8a73a4-ape6evm-reference.dtb \
 	sh7372-mackerel.dtb
 dtb-$(CONFIG_ARCH_SHMOBILE_MULTI) += emev2-kzm9d-reference.dtb
-dtb-$(CONFIG_ARCH_SOCFPGA) += socfpga_cyclone5_socdk.dtb \
+dtb-$(CONFIG_ARCH_SOCFPGA) += socfpga_arria5_socdk.dtb \
+	socfpga_cyclone5_socdk.dtb \
 	socfpga_cyclone5_sockit.dtb \
 	socfpga_vt.dtb
 dtb-$(CONFIG_ARCH_SPEAR13XX) += spear1310-evb.dtb \
diff --git a/arch/arm/boot/dts/socfpga_arria5.dtsi b/arch/arm/boot/dts/socfpga_arria5.dtsi
new file mode 100644
index 000000000000..a85b4043f888
--- /dev/null
+++ b/arch/arm/boot/dts/socfpga_arria5.dtsi
@@ -0,0 +1,58 @@
+/*
+ *  Copyright (C) 2013 Altera Corporation <www.altera.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/dts-v1/;
+/include/ "socfpga.dtsi"
+
+/ {
+	soc {
+		clkmgr@ffd04000 {
+			clocks {
+				osc1 {
+					clock-frequency = <25000000>;
+				};
+			};
+		};
+
+		serial0@ffc02000 {
+			clock-frequency = <100000000>;
+		};
+
+		serial1@ffc03000 {
+			clock-frequency = <100000000>;
+		};
+
+		sysmgr@ffd08000 {
+			cpu1-start-addr = <0xffd080c4>;
+		};
+
+		timer0@ffc08000 {
+			clock-frequency = <100000000>;
+		};
+
+		timer1@ffc09000 {
+			clock-frequency = <100000000>;
+		};
+
+		timer2@ffd00000 {
+			clock-frequency = <25000000>;
+		};
+
+		timer3@ffd01000 {
+			clock-frequency = <25000000>;
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/socfpga_arria5_socdk.dts b/arch/arm/boot/dts/socfpga_arria5_socdk.dts
new file mode 100644
index 000000000000..5beffb2265f4
--- /dev/null
+++ b/arch/arm/boot/dts/socfpga_arria5_socdk.dts
@@ -0,0 +1,40 @@
+/*
+ *  Copyright (C) 2013 Altera Corporation <www.altera.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/include/ "socfpga_arria5.dtsi"
+
+/ {
+	model = "Altera SOCFPGA Arria V SoC Development Kit";
+	compatible = "altr,socfpga-arria5", "altr,socfpga";
+
+	chosen {
+		bootargs = "console=ttyS0,115200";
+	};
+
+	memory {
+		name = "memory";
+		device_type = "memory";
+		reg = <0x0 0x40000000>; /* 1GB */
+	};
+
+	aliases {
+		/* this allow the ethaddr uboot environmnet variable contents
+		* to be added to the gmac1 device tree blob.
+		*/
+		ethernet0 = &gmac1;
+	};
+};
-- 
cgit 


From 65cd4f6c99c1170bd0114dbd71b978012ea44d28 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 18 Jul 2013 16:21:18 -0700
Subject: arch_timer: Move to generic sched_clock framework

Register with the generic sched_clock framework now that it
supports 64 bits. This fixes two problems with the current
sched_clock support for machines using the architected timers.
First off, we don't subtract the start value from subsequent
sched_clock calls so we can potentially start off with
sched_clock returning gigantic numbers. Second, there is no
support for suspend/resume handling so problems such as discussed
in 6a4dae5 (ARM: 7565/1: sched: stop sched_clock() during
suspend, 2012-10-23) can happen without this patch. Finally, it
allows us to move the sched_clock setup into drivers clocksource
out of the arch ports.

Cc: Christopher Covington <cov@codeaurora.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 arch/arm/kernel/arch_timer.c         | 14 --------------
 arch/arm64/Kconfig                   |  1 +
 arch/arm64/kernel/time.c             | 10 ----------
 drivers/clocksource/arm_arch_timer.c | 10 ++++++++++
 4 files changed, 11 insertions(+), 24 deletions(-)

diff --git a/arch/arm/kernel/arch_timer.c b/arch/arm/kernel/arch_timer.c
index 221f07b11ccb..1791f12c180b 100644
--- a/arch/arm/kernel/arch_timer.c
+++ b/arch/arm/kernel/arch_timer.c
@@ -11,7 +11,6 @@
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/errno.h>
-#include <linux/sched_clock.h>
 
 #include <asm/delay.h>
 
@@ -22,13 +21,6 @@ static unsigned long arch_timer_read_counter_long(void)
 	return arch_timer_read_counter();
 }
 
-static u32 sched_clock_mult __read_mostly;
-
-static unsigned long long notrace arch_timer_sched_clock(void)
-{
-	return arch_timer_read_counter() * sched_clock_mult;
-}
-
 static struct delay_timer arch_delay_timer;
 
 static void __init arch_timer_delay_timer_register(void)
@@ -48,11 +40,5 @@ int __init arch_timer_arch_init(void)
 
 	arch_timer_delay_timer_register();
 
-	/* Cache the sched_clock multiplier to save a divide in the hot path. */
-	sched_clock_mult = NSEC_PER_SEC / arch_timer_rate;
-	sched_clock_func = arch_timer_sched_clock;
-	pr_info("sched_clock: ARM arch timer >56 bits at %ukHz, resolution %uns\n",
-		arch_timer_rate / 1000, sched_clock_mult);
-
 	return 0;
 }
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index c04454876bcb..35fd0eb57270 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -14,6 +14,7 @@ config ARM64
 	select GENERIC_IOMAP
 	select GENERIC_IRQ_PROBE
 	select GENERIC_IRQ_SHOW
+	select GENERIC_SCHED_CLOCK
 	select GENERIC_SMP_IDLE_THREAD
 	select GENERIC_TIME_VSYSCALL
 	select HARDIRQS_SW_RESEND
diff --git a/arch/arm64/kernel/time.c b/arch/arm64/kernel/time.c
index 03dc3718eb13..29c39d5d77e3 100644
--- a/arch/arm64/kernel/time.c
+++ b/arch/arm64/kernel/time.c
@@ -61,13 +61,6 @@ unsigned long profile_pc(struct pt_regs *regs)
 EXPORT_SYMBOL(profile_pc);
 #endif
 
-static u64 sched_clock_mult __read_mostly;
-
-unsigned long long notrace sched_clock(void)
-{
-	return arch_timer_read_counter() * sched_clock_mult;
-}
-
 void __init time_init(void)
 {
 	u32 arch_timer_rate;
@@ -78,9 +71,6 @@ void __init time_init(void)
 	if (!arch_timer_rate)
 		panic("Unable to initialise architected timer.\n");
 
-	/* Cache the sched_clock multiplier to save a divide in the hot path. */
-	sched_clock_mult = NSEC_PER_SEC / arch_timer_rate;
-
 	/* Calibrate the delay loop directly */
 	lpj_fine = arch_timer_rate / HZ;
 }
diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index fbd9ccd5e114..5d527895c74d 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -19,6 +19,7 @@
 #include <linux/of_address.h>
 #include <linux/io.h>
 #include <linux/slab.h>
+#include <linux/sched_clock.h>
 
 #include <asm/arch_timer.h>
 #include <asm/virt.h>
@@ -471,6 +472,15 @@ static int __init arch_timer_register(void)
 		goto out;
 	}
 
+	clocksource_register_hz(&clocksource_counter, arch_timer_rate);
+	cyclecounter.mult = clocksource_counter.mult;
+	cyclecounter.shift = clocksource_counter.shift;
+	timecounter_init(&timecounter, &cyclecounter,
+			 arch_counter_get_cntvct());
+
+	/* 56 bits minimum, so we assume worst case rollover */
+	sched_clock_register(arch_timer_read_counter, 56, arch_timer_rate);
+
 	if (arch_timer_use_virtual) {
 		ppi = arch_timer_ppi[VIRT_PPI];
 		err = request_percpu_irq(ppi, arch_timer_handler_virt,
-- 
cgit 


From b4042ceaabbd913bc5b397ddd1e396eeb312d72f Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 18 Jul 2013 16:21:19 -0700
Subject: sched_clock: Remove sched_clock_func() hook

Nobody is using sched_clock_func() anymore now that sched_clock
supports up to 64 bits. Remove the hook so that new code only
uses sched_clock_register().

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 include/linux/sched_clock.h | 2 --
 kernel/time/sched_clock.c   | 9 +--------
 2 files changed, 1 insertion(+), 10 deletions(-)

diff --git a/include/linux/sched_clock.h b/include/linux/sched_clock.h
index eca7abeb86fc..cddf0c2940b6 100644
--- a/include/linux/sched_clock.h
+++ b/include/linux/sched_clock.h
@@ -18,6 +18,4 @@ extern void setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate);
 extern void sched_clock_register(u64 (*read)(void), int bits,
 				 unsigned long rate);
 
-extern unsigned long long (*sched_clock_func)(void);
-
 #endif
diff --git a/kernel/time/sched_clock.c b/kernel/time/sched_clock.c
index f388baeaf2b6..68b799375981 100644
--- a/kernel/time/sched_clock.c
+++ b/kernel/time/sched_clock.c
@@ -63,7 +63,7 @@ static inline u64 notrace cyc_to_ns(u64 cyc, u32 mult, u32 shift)
 	return (cyc * mult) >> shift;
 }
 
-static unsigned long long notrace sched_clock_32(void)
+unsigned long long notrace sched_clock(void)
 {
 	u64 epoch_ns;
 	u64 epoch_cyc;
@@ -170,13 +170,6 @@ void __init setup_sched_clock(u32 (*read)(void), int bits, unsigned long rate)
 	sched_clock_register(read_sched_clock_32_wrapper, bits, rate);
 }
 
-unsigned long long __read_mostly (*sched_clock_func)(void) = sched_clock_32;
-
-unsigned long long notrace sched_clock(void)
-{
-	return sched_clock_func();
-}
-
 void __init sched_clock_postinit(void)
 {
 	/*
-- 
cgit 


From b4cb9244a544a1623305eb58267a90418268d31e Mon Sep 17 00:00:00 2001
From: Felipe Contreras <felipe.contreras@gmail.com>
Date: Thu, 3 Oct 2013 12:13:03 -0500
Subject: ACPI: update win8 OSI blacklist

More people have reported they need this for their machines to work
correctly.

References: https://bugzilla.kernel.org/show_bug.cgi?id=60682
Reported-by: Stefan Hellermann <bugzilla.kernel.org@the2masters.de>
Reported-by: Benedikt Sauer <filmor@gmail.com>
Reported-by: Erno Kuusela <erno@iki.fi>
Reported-by: Jonathan Doman <jonathan.doman@gmail.com>
Reported-by: Christoph Klaffl <christophklaffl@gmail.com>
Reported-by: Jan Hendrik Nielsen <jan.hendrik.nielsen@informatik.hu-berlin.de>
Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/blacklist.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index 9515f18898b2..f37dec579712 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -297,6 +297,54 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 		     DMI_MATCH(DMI_PRODUCT_VERSION, "3259A2G"),
 		},
 	},
+	{
+	.callback = dmi_disable_osi_win8,
+	.ident = "ThinkPad Edge E530",
+	.matches = {
+		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+		     DMI_MATCH(DMI_PRODUCT_VERSION, "3259CTO"),
+		},
+	},
+	{
+	.callback = dmi_disable_osi_win8,
+	.ident = "ThinkPad Edge E530",
+	.matches = {
+		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+		     DMI_MATCH(DMI_PRODUCT_VERSION, "3259HJG"),
+		},
+	},
+	{
+	.callback = dmi_disable_osi_win8,
+	.ident = "Acer Aspire V5-573G",
+	.matches = {
+		     DMI_MATCH(DMI_SYS_VENDOR, "Acer Aspire"),
+		     DMI_MATCH(DMI_PRODUCT_VERSION, "V5-573G/Dazzle_HW"),
+		},
+	},
+	{
+	.callback = dmi_disable_osi_win8,
+	.ident = "Acer Aspire V5-572G",
+	.matches = {
+		     DMI_MATCH(DMI_SYS_VENDOR, "Acer Aspire"),
+		     DMI_MATCH(DMI_PRODUCT_VERSION, "V5-572G/Dazzle_CX"),
+		},
+	},
+	{
+	.callback = dmi_disable_osi_win8,
+	.ident = "ThinkPad T431s",
+	.matches = {
+		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+		     DMI_MATCH(DMI_PRODUCT_VERSION, "20AACTO1WW"),
+		},
+	},
+	{
+	.callback = dmi_disable_osi_win8,
+	.ident = "ThinkPad T430",
+	.matches = {
+		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+		     DMI_MATCH(DMI_PRODUCT_VERSION, "2349D15"),
+		},
+	},
 
 	/*
 	 * BIOS invocation of _OSI(Linux) is almost always a BIOS bug.
-- 
cgit 


From 068aab7766cf968a8ddb86a6d7c6bbed9d61e353 Mon Sep 17 00:00:00 2001
From: Felipe Contreras <felipe.contreras@gmail.com>
Date: Sun, 6 Oct 2013 20:59:55 -0500
Subject: ACPI: add missing win8 OSI comment to blacklist

In my original patch[1] I wrote a comment describing the reason for
disabling Windows 2012 OSI mode for a group of machines, however, due to
unknown reasons (probably a conflict resolution mismatch), the comment
was dropped in 94fb982 (ACPI: blacklist win8 OSI for buggy laptops).

Since Matthew Garrett is making a big deal out of the lack of comments
in a separate patch[2], it might make sense to re-introduce the missing
comment so that other patch is not blocked and users don't suffer.

[1] http://article.gmane.org/gmane.linux.acpi.devel/63427
[2] http://thread.gmane.org/gmane.linux.kernel/1572459

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/blacklist.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index f37dec579712..aa4d874a96fd 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -273,6 +273,11 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 		     DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"),
 		},
 	},
+
+	/*
+	 * The following machines have broken backlight support when reporting
+	 * the Windows 2012 OSI, so disable it until their support is fixed.
+	 */
 	{
 	.callback = dmi_disable_osi_win8,
 	.ident = "ASUS Zenbook Prime UX31A",
-- 
cgit 


From 16ff816d3b5d2b81fcff5ca44eb9a98ac3b604b4 Mon Sep 17 00:00:00 2001
From: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Date: Wed, 2 Oct 2013 16:27:37 +0800
Subject: ACPI / memhotplug: Use defined marco METHOD_NAME__STA

We already have predefined marco for method name "_STA', so
using the marco instead of directly using the string.

Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_memhotplug.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c
index 999adb5499c7..dc0880db909c 100644
--- a/drivers/acpi/acpi_memhotplug.c
+++ b/drivers/acpi/acpi_memhotplug.c
@@ -152,8 +152,9 @@ static int acpi_memory_check_device(struct acpi_memory_device *mem_device)
 	unsigned long long current_status;
 
 	/* Get device present/absent information from the _STA */
-	if (ACPI_FAILURE(acpi_evaluate_integer(mem_device->device->handle, "_STA",
-					       NULL, &current_status)))
+	if (ACPI_FAILURE(acpi_evaluate_integer(mem_device->device->handle,
+					       METHOD_NAME__STA, NULL,
+					       &current_status)))
 		return -ENODEV;
 	/*
 	 * Check for device status. Device should be
-- 
cgit 


From 1b750e3bdae5b2d0f3d377b0c56e7465f85b67f2 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Wed, 2 Oct 2013 14:13:09 +0530
Subject: cpufreq: make return type of lock_policy_rwsem_{read|write}() as void

lock_policy_rwsem_{read|write}() currently has return type of int,
but it always returns zero and hence its return type should be void
instead. This patch makes that change and modifies all of the users
accordingly.

Reported-by: Jon Medhurst<tixy@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq.c | 38 +++++++++++---------------------------
 1 file changed, 11 insertions(+), 27 deletions(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 04548f7023af..eb993d997bef 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -67,13 +67,11 @@ static DEFINE_PER_CPU(char[CPUFREQ_NAME_LEN], cpufreq_cpu_governor);
 static DEFINE_PER_CPU(struct rw_semaphore, cpu_policy_rwsem);
 
 #define lock_policy_rwsem(mode, cpu)					\
-static int lock_policy_rwsem_##mode(int cpu)				\
+static void lock_policy_rwsem_##mode(int cpu)				\
 {									\
 	struct cpufreq_policy *policy = per_cpu(cpufreq_cpu_data, cpu);	\
 	BUG_ON(!policy);						\
 	down_##mode(&per_cpu(cpu_policy_rwsem, policy->cpu));		\
-									\
-	return 0;							\
 }
 
 lock_policy_rwsem(read, cpu);
@@ -653,13 +651,12 @@ static ssize_t show(struct kobject *kobj, struct attribute *attr, char *buf)
 {
 	struct cpufreq_policy *policy = to_policy(kobj);
 	struct freq_attr *fattr = to_attr(attr);
-	ssize_t ret = -EINVAL;
+	ssize_t ret;
 
 	if (!down_read_trylock(&cpufreq_rwsem))
-		goto exit;
+		return -EINVAL;
 
-	if (lock_policy_rwsem_read(policy->cpu) < 0)
-		goto up_read;
+	lock_policy_rwsem_read(policy->cpu);
 
 	if (fattr->show)
 		ret = fattr->show(policy, buf);
@@ -667,10 +664,8 @@ static ssize_t show(struct kobject *kobj, struct attribute *attr, char *buf)
 		ret = -EIO;
 
 	unlock_policy_rwsem_read(policy->cpu);
-
-up_read:
 	up_read(&cpufreq_rwsem);
-exit:
+
 	return ret;
 }
 
@@ -689,8 +684,7 @@ static ssize_t store(struct kobject *kobj, struct attribute *attr,
 	if (!down_read_trylock(&cpufreq_rwsem))
 		goto unlock;
 
-	if (lock_policy_rwsem_write(policy->cpu) < 0)
-		goto up_read;
+	lock_policy_rwsem_write(policy->cpu);
 
 	if (fattr->store)
 		ret = fattr->store(policy, buf, count);
@@ -699,7 +693,6 @@ static ssize_t store(struct kobject *kobj, struct attribute *attr,
 
 	unlock_policy_rwsem_write(policy->cpu);
 
-up_read:
 	up_read(&cpufreq_rwsem);
 unlock:
 	put_online_cpus();
@@ -1147,7 +1140,7 @@ static int cpufreq_nominate_new_policy_cpu(struct cpufreq_policy *policy,
 	if (ret) {
 		pr_err("%s: Failed to move kobj: %d", __func__, ret);
 
-		WARN_ON(lock_policy_rwsem_write(old_cpu));
+		lock_policy_rwsem_write(old_cpu);
 		cpumask_set_cpu(old_cpu, policy->cpus);
 		unlock_policy_rwsem_write(old_cpu);
 
@@ -1243,7 +1236,7 @@ static int __cpufreq_remove_dev_finish(struct device *dev,
 		return -EINVAL;
 	}
 
-	WARN_ON(lock_policy_rwsem_write(cpu));
+	lock_policy_rwsem_write(cpu);
 	cpus = cpumask_weight(policy->cpus);
 
 	if (cpus > 1)
@@ -1466,14 +1459,11 @@ unsigned int cpufreq_get(unsigned int cpu)
 	if (!down_read_trylock(&cpufreq_rwsem))
 		return 0;
 
-	if (unlikely(lock_policy_rwsem_read(cpu)))
-		goto out_policy;
+	lock_policy_rwsem_read(cpu);
 
 	ret_freq = __cpufreq_get(cpu);
 
 	unlock_policy_rwsem_read(cpu);
-
-out_policy:
 	up_read(&cpufreq_rwsem);
 
 	return ret_freq;
@@ -1697,14 +1687,12 @@ int cpufreq_driver_target(struct cpufreq_policy *policy,
 {
 	int ret = -EINVAL;
 
-	if (unlikely(lock_policy_rwsem_write(policy->cpu)))
-		goto fail;
+	lock_policy_rwsem_write(policy->cpu);
 
 	ret = __cpufreq_driver_target(policy, target_freq, relation);
 
 	unlock_policy_rwsem_write(policy->cpu);
 
-fail:
 	return ret;
 }
 EXPORT_SYMBOL_GPL(cpufreq_driver_target);
@@ -1995,10 +1983,7 @@ int cpufreq_update_policy(unsigned int cpu)
 		goto no_policy;
 	}
 
-	if (unlikely(lock_policy_rwsem_write(cpu))) {
-		ret = -EINVAL;
-		goto fail;
-	}
+	lock_policy_rwsem_write(cpu);
 
 	pr_debug("updating policy for CPU %u\n", cpu);
 	memcpy(&new_policy, policy, sizeof(*policy));
@@ -2027,7 +2012,6 @@ int cpufreq_update_policy(unsigned int cpu)
 
 	unlock_policy_rwsem_write(cpu);
 
-fail:
 	cpufreq_cpu_put(policy);
 no_policy:
 	return ret;
-- 
cgit 


From 6a903a2551ef778d60ce4341722d611144251398 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Tue, 27 Aug 2013 21:41:56 -0500
Subject: of: introduce common FDT machine related functions

Introduce common of_flat_dt_match_machine and
of_flat_dt_get_machine_name functions to unify architectures' handling
of machine level model and compatible properties.

Several architectures match the root compatible string with an arch
specific list of machine descriptors duplicating the same search
algorithm. Create a common implementation with a simple architecture
specific hook to iterate over each machine's match table.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
---
 drivers/of/fdt.c       | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++
 include/linux/of_fdt.h |  5 +++++
 2 files changed, 65 insertions(+)

diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 5f4cc88cd89e..5c479104fc67 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -619,6 +619,66 @@ int __init of_scan_flat_dt_by_path(const char *path,
 		return ret;
 }
 
+const char * __init of_flat_dt_get_machine_name(void)
+{
+	const char *name;
+	unsigned long dt_root = of_get_flat_dt_root();
+
+	name = of_get_flat_dt_prop(dt_root, "model", NULL);
+	if (!name)
+		name = of_get_flat_dt_prop(dt_root, "compatible", NULL);
+	return name;
+}
+
+/**
+ * of_flat_dt_match_machine - Iterate match tables to find matching machine.
+ *
+ * @default_match: A machine specific ptr to return in case of no match.
+ * @get_next_compat: callback function to return next compatible match table.
+ *
+ * Iterate through machine match tables to find the best match for the machine
+ * compatible string in the FDT.
+ */
+const void * __init of_flat_dt_match_machine(const void *default_match,
+		const void * (*get_next_compat)(const char * const**))
+{
+	const void *data = NULL;
+	const void *best_data = default_match;
+	const char *const *compat;
+	unsigned long dt_root;
+	unsigned int best_score = ~1, score = 0;
+
+	dt_root = of_get_flat_dt_root();
+	while ((data = get_next_compat(&compat))) {
+		score = of_flat_dt_match(dt_root, compat);
+		if (score > 0 && score < best_score) {
+			best_data = data;
+			best_score = score;
+		}
+	}
+	if (!best_data) {
+		const char *prop;
+		long size;
+
+		pr_err("\n unrecognized device tree list:\n[ ");
+
+		prop = of_get_flat_dt_prop(dt_root, "compatible", &size);
+		if (prop) {
+			while (size > 0) {
+				printk("'%s' ", prop);
+				size -= strlen(prop) + 1;
+				prop += strlen(prop) + 1;
+			}
+		}
+		printk("]\n\n");
+		return NULL;
+	}
+
+	pr_info("Machine model: %s\n", of_flat_dt_get_machine_name());
+
+	return best_data;
+}
+
 #ifdef CONFIG_BLK_DEV_INITRD
 /**
  * early_init_dt_check_for_initrd - Decode initrd location from flat tree
diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h
index b365f5ac7b54..0beaee9dac1f 100644
--- a/include/linux/of_fdt.h
+++ b/include/linux/of_fdt.h
@@ -108,11 +108,16 @@ extern int early_init_dt_scan_root(unsigned long node, const char *uname,
 
 extern bool early_init_dt_scan(void *params);
 
+extern const char *of_flat_dt_get_machine_name(void);
+extern const void *of_flat_dt_match_machine(const void *default_match,
+		const void * (*get_next_compat)(const char * const**));
+
 /* Other Prototypes */
 extern void unflatten_device_tree(void);
 extern void unflatten_and_copy_device_tree(void);
 extern void early_init_devtree(void *);
 #else /* CONFIG_OF_FLATTREE */
+static inline const char *of_flat_dt_get_machine_name(void) { return NULL; }
 static inline void unflatten_device_tree(void) {}
 static inline void unflatten_and_copy_device_tree(void) {}
 #endif /* CONFIG_OF_FLATTREE */
-- 
cgit 


From 880beb8807814c7785680bcbdc81dcf076f585db Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Tue, 27 Aug 2013 21:43:12 -0500
Subject: arc: use common of_flat_dt_match_machine

Convert arc to use the common of_flat_dt_match_machine function.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/include/asm/mach_desc.h | 16 ++--------
 arch/arc/kernel/devtree.c        | 67 ++++++++++++----------------------------
 arch/arc/kernel/setup.c          |  2 +-
 3 files changed, 23 insertions(+), 62 deletions(-)

diff --git a/arch/arc/include/asm/mach_desc.h b/arch/arc/include/asm/mach_desc.h
index d3e9c0a05be8..e8993a2be6c2 100644
--- a/arch/arc/include/asm/mach_desc.h
+++ b/arch/arc/include/asm/mach_desc.h
@@ -51,22 +51,12 @@ struct machine_desc {
 /*
  * Current machine - only accessible during boot.
  */
-extern struct machine_desc *machine_desc;
+extern const struct machine_desc *machine_desc;
 
 /*
  * Machine type table - also only accessible during boot
  */
-extern struct machine_desc __arch_info_begin[], __arch_info_end[];
-#define for_each_machine_desc(p)			\
-	for (p = __arch_info_begin; p < __arch_info_end; p++)
-
-static inline struct machine_desc *default_machine_desc(void)
-{
-	/* the default machine is the last one linked in */
-	if (__arch_info_end - 1 < __arch_info_begin)
-		return NULL;
-	return __arch_info_end - 1;
-}
+extern const struct machine_desc __arch_info_begin[], __arch_info_end[];
 
 /*
  * Set of macros to define architecture features.
@@ -81,6 +71,6 @@ __attribute__((__section__(".arch.info.init"))) = {	\
 #define MACHINE_END				\
 };
 
-extern struct machine_desc *setup_machine_fdt(void *dt);
+extern const struct machine_desc *setup_machine_fdt(void *dt);
 
 #endif
diff --git a/arch/arc/kernel/devtree.c b/arch/arc/kernel/devtree.c
index 1ab6f3569f60..d7b5322ffed5 100644
--- a/arch/arc/kernel/devtree.c
+++ b/arch/arc/kernel/devtree.c
@@ -18,6 +18,19 @@
 #include <asm/clk.h>
 #include <asm/mach_desc.h>
 
+static const void * __init arch_get_next_mach(const char *const **match)
+{
+	static const struct machine_desc *mdesc = __arch_info_begin;
+	const struct machine_desc *m = mdesc;
+
+	if (m >= __arch_info_end)
+		return NULL;
+
+	mdesc++;
+	*match = m->dt_compat;
+	return m;
+}
+
 /**
  * setup_machine_fdt - Machine setup when an dtb was passed to the kernel
  * @dt:		virtual address pointer to dt blob
@@ -25,66 +38,24 @@
  * If a dtb was passed to the kernel, then use it to choose the correct
  * machine_desc and to setup the system.
  */
-struct machine_desc * __init setup_machine_fdt(void *dt)
+const struct machine_desc * __init setup_machine_fdt(void *dt)
 {
-	struct machine_desc *mdesc = NULL, *mdesc_best = NULL;
-	unsigned int score, mdesc_score = ~1;
+	const struct machine_desc *mdesc;
 	unsigned long dt_root;
-	const char *model, *compat;
 	void *clk;
-	char manufacturer[16];
 	unsigned long len;
 
 	if (!early_init_dt_scan(dt))
 		return NULL;
 
-	dt_root = of_get_flat_dt_root();
-
-	/*
-	 * The kernel could be multi-platform enabled, thus could have many
-	 * "baked-in" machine descriptors. Search thru all for the best
-	 * "compatible" string match.
-	 */
-	for_each_machine_desc(mdesc) {
-		score = of_flat_dt_match(dt_root, mdesc->dt_compat);
-		if (score > 0 && score < mdesc_score) {
-			mdesc_best = mdesc;
-			mdesc_score = score;
-		}
-	}
-	if (!mdesc_best) {
-		const char *prop;
-		long size;
-
-		pr_err("\n unrecognized device tree list:\n[ ");
-
-		prop = of_get_flat_dt_prop(dt_root, "compatible", &size);
-		if (prop) {
-			while (size > 0) {
-				printk("'%s' ", prop);
-				size -= strlen(prop) + 1;
-				prop += strlen(prop) + 1;
-			}
-		}
-		printk("]\n\n");
-
+	mdesc = of_flat_dt_match_machine(NULL, arch_get_next_mach);
+	if (!mdesc)
 		machine_halt();
-	}
-
-	/* compat = "<manufacturer>,<model>" */
-	compat =  mdesc_best->dt_compat[0];
-
-	model = strchr(compat, ',');
-	if (model)
-		model++;
-
-	strlcpy(manufacturer, compat, model ? model - compat : strlen(compat));
-
-	pr_info("Board \"%s\" from %s (Manufacturer)\n", model, manufacturer);
 
+	dt_root = of_get_flat_dt_root();
 	clk = of_get_flat_dt_prop(dt_root, "clock-frequency", &len);
 	if (clk)
 		arc_set_core_freq(of_read_ulong(clk, len/4));
 
-	return mdesc_best;
+	return mdesc;
 }
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index 710bf895dc2c..8a9cf4e7403b 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -31,7 +31,7 @@
 int running_on_hw = 1;	/* vs. on ISS */
 
 char __initdata command_line[COMMAND_LINE_SIZE];
-struct machine_desc *machine_desc;
+const struct machine_desc *machine_desc;
 
 struct task_struct *_current_task[NR_CPUS];	/* For stack switching */
 
-- 
cgit 


From 6d67a9f672f4718a3a9060a96f859d0465663b55 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Tue, 27 Aug 2013 21:43:49 -0500
Subject: arm: use common of_flat_dt_match_machine

Convert arm to use the common of_flat_dt_match_machine function.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
---
 arch/arm/kernel/devtree.c | 41 +++++++++++++++++++----------------------
 1 file changed, 19 insertions(+), 22 deletions(-)

diff --git a/arch/arm/kernel/devtree.c b/arch/arm/kernel/devtree.c
index e7ce175b99e3..739c3dfc1da2 100644
--- a/arch/arm/kernel/devtree.c
+++ b/arch/arm/kernel/devtree.c
@@ -174,6 +174,19 @@ bool arch_match_cpu_phys_id(int cpu, u64 phys_id)
 	return (phys_id & MPIDR_HWID_BITMASK) == cpu_logical_map(cpu);
 }
 
+static const void * __init arch_get_next_mach(const char *const **match)
+{
+	static const struct machine_desc *mdesc = __arch_info_begin;
+	const struct machine_desc *m = mdesc;
+
+	if (m >= __arch_info_end)
+		return NULL;
+
+	mdesc++;
+	*match = m->dt_compat;
+	return m;
+}
+
 /**
  * setup_machine_fdt - Machine setup when an dtb was passed to the kernel
  * @dt_phys: physical address of dt blob
@@ -184,9 +197,6 @@ bool arch_match_cpu_phys_id(int cpu, u64 phys_id)
 const struct machine_desc * __init setup_machine_fdt(unsigned int dt_phys)
 {
 	const struct machine_desc *mdesc, *mdesc_best = NULL;
-	unsigned int score, mdesc_score = ~1;
-	unsigned long dt_root;
-	const char *model;
 
 #ifdef CONFIG_ARCH_MULTIPLATFORM
 	DT_MACHINE_START(GENERIC_DT, "Generic DT based system")
@@ -198,23 +208,17 @@ const struct machine_desc * __init setup_machine_fdt(unsigned int dt_phys)
 	if (!dt_phys || !early_init_dt_scan(phys_to_virt(dt_phys)))
 		return NULL;
 
+	mdesc = of_flat_dt_match_machine(mdesc_best, arch_get_next_mach);
 
-	/* Search the mdescs for the 'best' compatible value match */
-	dt_root = of_get_flat_dt_root();
-	for_each_machine_desc(mdesc) {
-		score = of_flat_dt_match(dt_root, mdesc->dt_compat);
-		if (score > 0 && score < mdesc_score) {
-			mdesc_best = mdesc;
-			mdesc_score = score;
-		}
-	}
-	if (!mdesc_best) {
+	if (!mdesc) {
 		const char *prop;
 		long size;
+		unsigned long dt_root;
 
 		early_print("\nError: unrecognized/unsupported "
 			    "device tree compatible list:\n[ ");
 
+		dt_root = of_get_flat_dt_root();
 		prop = of_get_flat_dt_prop(dt_root, "compatible", &size);
 		while (size > 0) {
 			early_print("'%s' ", prop);
@@ -226,15 +230,8 @@ const struct machine_desc * __init setup_machine_fdt(unsigned int dt_phys)
 		dump_machine_table(); /* does not return */
 	}
 
-	model = of_get_flat_dt_prop(dt_root, "model", NULL);
-	if (!model)
-		model = of_get_flat_dt_prop(dt_root, "compatible", NULL);
-	if (!model)
-		model = "<unknown>";
-	pr_info("Machine: %s, model: %s\n", mdesc_best->name, model);
-
 	/* Change machine number to match the mdesc we're using */
-	__machine_arch_type = mdesc_best->nr;
+	__machine_arch_type = mdesc->nr;
 
-	return mdesc_best;
+	return mdesc;
 }
-- 
cgit 


From f2b99bccae87de82a5d03838abe85d604ee7e525 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Tue, 27 Aug 2013 21:44:37 -0500
Subject: arm64: use common of_flat_dt_get_machine_name

Convert arm64 to use the common of_flat_dt_get_machine_name function.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
---
 arch/arm64/kernel/setup.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 7feb0c97d0dd..a4ed2d3e4de9 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -124,8 +124,6 @@ static void __init setup_processor(void)
 
 static void __init setup_machine_fdt(phys_addr_t dt_phys)
 {
-	unsigned long dt_root;
-
 	if (!dt_phys || !early_init_dt_scan(phys_to_virt(dt_phys))) {
 		early_print("\n"
 			"Error: invalid device tree blob at physical address 0x%p (virtual address 0x%p)\n"
@@ -137,14 +135,7 @@ static void __init setup_machine_fdt(phys_addr_t dt_phys)
 			cpu_relax();
 	}
 
-	dt_root = of_get_flat_dt_root();
-
-	machine_name = of_get_flat_dt_prop(dt_root, "model", NULL);
-	if (!machine_name)
-		machine_name = of_get_flat_dt_prop(dt_root, "compatible", NULL);
-	if (!machine_name)
-		machine_name = "<unknown>";
-	pr_info("Machine: %s\n", machine_name);
+	machine_name = of_flat_dt_get_machine_name();
 }
 
 /*
-- 
cgit 


From 986c494b3c05bac5eace21f8e3a42f2afbfcbd34 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Wed, 25 Sep 2013 15:49:28 -0500
Subject: metag: use common of_flat_dt_match_machine

Convert metag to use the common of_flat_dt_get_machine_name function.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
[james.hogan: fix missing arch_get_next_mach and const mismatch]
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
---
 arch/metag/include/asm/mach/arch.h |  2 +-
 arch/metag/include/asm/prom.h      |  2 +-
 arch/metag/kernel/devtree.c        | 60 ++++++++++++--------------------------
 arch/metag/kernel/setup.c          |  2 +-
 4 files changed, 22 insertions(+), 44 deletions(-)

diff --git a/arch/metag/include/asm/mach/arch.h b/arch/metag/include/asm/mach/arch.h
index 12c5664fea6e..433f94624fa2 100644
--- a/arch/metag/include/asm/mach/arch.h
+++ b/arch/metag/include/asm/mach/arch.h
@@ -53,7 +53,7 @@ struct machine_desc {
 /*
  * Current machine - only accessible during boot.
  */
-extern struct machine_desc *machine_desc;
+extern const struct machine_desc *machine_desc;
 
 /*
  * Machine type table - also only accessible during boot
diff --git a/arch/metag/include/asm/prom.h b/arch/metag/include/asm/prom.h
index d2aa35d2228e..9f67cbf3dcb7 100644
--- a/arch/metag/include/asm/prom.h
+++ b/arch/metag/include/asm/prom.h
@@ -17,7 +17,7 @@
 #include <asm/setup.h>
 #define HAVE_ARCH_DEVTREE_FIXUPS
 
-extern struct machine_desc *setup_machine_fdt(void *dt);
+extern const struct machine_desc *setup_machine_fdt(void *dt);
 extern void copy_fdt(void);
 
 #endif /* __ASM_METAG_PROM_H */
diff --git a/arch/metag/kernel/devtree.c b/arch/metag/kernel/devtree.c
index 68c2fee788c8..18dd7aea9fdc 100644
--- a/arch/metag/kernel/devtree.c
+++ b/arch/metag/kernel/devtree.c
@@ -34,6 +34,19 @@ void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
 	return alloc_bootmem_align(size, align);
 }
 
+static const void * __init arch_get_next_mach(const char *const **match)
+{
+	static const struct machine_desc *mdesc = __arch_info_begin;
+	const struct machine_desc *m = mdesc;
+
+	if (m >= __arch_info_end)
+		return NULL;
+
+	mdesc++;
+	*match = m->dt_compat;
+	return m;
+}
+
 /**
  * setup_machine_fdt - Machine setup when an dtb was passed to the kernel
  * @dt:		virtual address pointer to dt blob
@@ -41,53 +54,18 @@ void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
  * If a dtb was passed to the kernel, then use it to choose the correct
  * machine_desc and to setup the system.
  */
-struct machine_desc * __init setup_machine_fdt(void *dt)
+const struct machine_desc * __init setup_machine_fdt(void *dt)
 {
-	struct machine_desc *mdesc, *mdesc_best = NULL;
-	unsigned int score, mdesc_score = ~1;
-	unsigned long dt_root;
-	const char *model;
+	const struct machine_desc *mdesc;
 
 	/* check device tree validity */
 	if (!early_init_dt_scan(dt))
 		return NULL;
 
-	/* Search the mdescs for the 'best' compatible value match */
-	dt_root = of_get_flat_dt_root();
-
-	for_each_machine_desc(mdesc) {
-		score = of_flat_dt_match(dt_root, mdesc->dt_compat);
-		if (score > 0 && score < mdesc_score) {
-			mdesc_best = mdesc;
-			mdesc_score = score;
-		}
-	}
-	if (!mdesc_best) {
-		const char *prop;
-		long size;
-
-		pr_err("\nError: unrecognized/unsupported device tree compatible list:\n[ ");
-
-		prop = of_get_flat_dt_prop(dt_root, "compatible", &size);
-		if (prop) {
-			while (size > 0) {
-				printk("'%s' ", prop);
-				size -= strlen(prop) + 1;
-				prop += strlen(prop) + 1;
-			}
-		}
-		printk("]\n\n");
-
+	mdesc = of_flat_dt_match_machine(NULL, arch_get_next_mach);
+	if (!mdesc)
 		dump_machine_table(); /* does not return */
-	}
-
-	model = of_get_flat_dt_prop(dt_root, "model", NULL);
-	if (!model)
-		model = of_get_flat_dt_prop(dt_root, "compatible", NULL);
-	if (!model)
-		model = "<unknown>";
-	pr_info("Machine: %s, model: %s\n", mdesc_best->name, model);
-
-	return mdesc_best;
+	pr_info("Machine name: %s\n", mdesc->name);
 
+	return mdesc;
 }
diff --git a/arch/metag/kernel/setup.c b/arch/metag/kernel/setup.c
index 2c697d343088..92cc119594d3 100644
--- a/arch/metag/kernel/setup.c
+++ b/arch/metag/kernel/setup.c
@@ -115,7 +115,7 @@ extern u32 __dtb_start[];
 extern struct console dash_console;
 #endif
 
-struct machine_desc *machine_desc __initdata;
+const struct machine_desc *machine_desc __initdata;
 
 /*
  * Map a Linux CPU number to a hardware thread ID
-- 
cgit 


From 97e7f455434704b4d42f918ac3de76f593e642c1 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Wed, 28 Aug 2013 09:56:40 -0500
Subject: mips: use common of_flat_dt_get_machine_name

Convert mips to use the common of_flat_dt_get_machine_name function.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Acked-by: John Crispin <blogic@openwrt.org>
---
 arch/mips/kernel/prom.c | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/arch/mips/kernel/prom.c b/arch/mips/kernel/prom.c
index 0b2485f9a6c1..3c3b0df8f48d 100644
--- a/arch/mips/kernel/prom.c
+++ b/arch/mips/kernel/prom.c
@@ -47,24 +47,11 @@ void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
 	return __alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS));
 }
 
-int __init early_init_dt_scan_model(unsigned long node,	const char *uname,
-				    int depth, void *data)
-{
-	if (!depth) {
-		char *model = of_get_flat_dt_prop(node, "model", NULL);
-
-		if (model)
-			mips_set_machine_name(model);
-	}
-	return 0;
-}
-
 void __init __dt_setup_arch(struct boot_param_header *bph)
 {
 	if (!early_init_dt_scan(bph))
 		return;
 
-	/* try to load the mips machine name */
-	of_scan_flat_dt(early_init_dt_scan_model, NULL);
+	mips_set_machine_name(of_flat_dt_get_machine_name());
 }
 #endif
-- 
cgit 


From fc84b0c3dc5dd42c6d040dcd11571c10b690d318 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Sat, 7 Sep 2013 16:35:13 -0500
Subject: drivers: remove unnecessary prom.h includes

Remove unnecessary prom.h includes in preparation to remove implicit
includes of prom.h.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: Wolfgang Grandegger <wg@grandegger.com>
Cc: linux-can@vger.kernel.org
Cc: netdev@vger.kernel.org
---
 drivers/net/can/grcan.c                       | 3 ---
 drivers/net/can/sja1000/sja1000_of_platform.c | 1 -
 2 files changed, 4 deletions(-)

diff --git a/drivers/net/can/grcan.c b/drivers/net/can/grcan.c
index 6aa737a24393..ab506d6cab37 100644
--- a/drivers/net/can/grcan.c
+++ b/drivers/net/can/grcan.c
@@ -34,10 +34,7 @@
 #include <linux/io.h>
 #include <linux/can/dev.h>
 #include <linux/spinlock.h>
-
 #include <linux/of_platform.h>
-#include <asm/prom.h>
-
 #include <linux/of_irq.h>
 
 #include <linux/dma-mapping.h>
diff --git a/drivers/net/can/sja1000/sja1000_of_platform.c b/drivers/net/can/sja1000/sja1000_of_platform.c
index 31ad33911167..047accd4ede5 100644
--- a/drivers/net/can/sja1000/sja1000_of_platform.c
+++ b/drivers/net/can/sja1000/sja1000_of_platform.c
@@ -44,7 +44,6 @@
 #include <linux/of_platform.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
-#include <asm/prom.h>
 
 #include "sja1000.h"
 
-- 
cgit 


From 9cae09c5a9940b9e02474be0639f0b49bd592a33 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Mon, 9 Sep 2013 18:13:46 -0500
Subject: of: remove unnecessary prom.h includes

Remove unnecessary prom.h includes in preparation to make prom.h optional.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
---
 drivers/of/of_pci_irq.c | 1 -
 drivers/of/pdt.c        | 1 -
 2 files changed, 2 deletions(-)

diff --git a/drivers/of/of_pci_irq.c b/drivers/of/of_pci_irq.c
index 677053813211..d86076431af6 100644
--- a/drivers/of/of_pci_irq.c
+++ b/drivers/of/of_pci_irq.c
@@ -2,7 +2,6 @@
 #include <linux/of_pci.h>
 #include <linux/of_irq.h>
 #include <linux/export.h>
-#include <asm/prom.h>
 
 /**
  * of_irq_map_pci - Resolve the interrupt for a PCI device
diff --git a/drivers/of/pdt.c b/drivers/of/pdt.c
index 4ec19cbee57f..7b666736c168 100644
--- a/drivers/of/pdt.c
+++ b/drivers/of/pdt.c
@@ -22,7 +22,6 @@
 #include <linux/slab.h>
 #include <linux/of.h>
 #include <linux/of_pdt.h>
-#include <asm/prom.h>
 
 static struct of_pdt_ops *of_pdt_prom_ops __initdata;
 
-- 
cgit 


From c0c376687ba979a6c2f2626d5a1eb94ece44f7b4 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Sun, 8 Sep 2013 14:28:38 -0500
Subject: ARM: keystone: remove unnecessary prom.h include

Remove unnecessary prom.h include in preparation to make prom.h optional.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
 arch/arm/mach-keystone/platsmp.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/mach-keystone/platsmp.c b/arch/arm/mach-keystone/platsmp.c
index c12296157d4a..5cf0683577ea 100644
--- a/arch/arm/mach-keystone/platsmp.c
+++ b/arch/arm/mach-keystone/platsmp.c
@@ -17,7 +17,6 @@
 #include <linux/io.h>
 
 #include <asm/smp_plat.h>
-#include <asm/prom.h>
 
 #include "keystone.h"
 
-- 
cgit 


From e2d1c994f7194e933236bd874b2d7f31b678bb94 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Sat, 7 Sep 2013 14:57:42 -0500
Subject: arm64: remove unnecessary prom.h include

Remove unnecessary prom.h include in preparation to make prom.h optional.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: Will Deacon <will.deacon@arm.com>
---
 arch/arm64/mm/init.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 8261f4e60795..0cb8742de4f2 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -31,7 +31,6 @@
 #include <linux/sort.h>
 #include <linux/of_fdt.h>
 
-#include <asm/prom.h>
 #include <asm/sections.h>
 #include <asm/setup.h>
 #include <asm/sizes.h>
-- 
cgit 


From be5973117bd48624d9e7d7728d754f4c9a322193 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Sun, 8 Sep 2013 14:26:28 -0500
Subject: arc: remove unnecessary prom.h includes

Remove unnecessary prom.h includes in preparation to remove prom.h.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
---
 arch/arc/kernel/devtree.c | 1 -
 arch/arc/kernel/setup.c   | 1 -
 2 files changed, 2 deletions(-)

diff --git a/arch/arc/kernel/devtree.c b/arch/arc/kernel/devtree.c
index d7b5322ffed5..b6dc4e21fd32 100644
--- a/arch/arc/kernel/devtree.c
+++ b/arch/arc/kernel/devtree.c
@@ -14,7 +14,6 @@
 #include <linux/memblock.h>
 #include <linux/of.h>
 #include <linux/of_fdt.h>
-#include <asm/prom.h>
 #include <asm/clk.h>
 #include <asm/mach_desc.h>
 
diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index 8a9cf4e7403b..f7d4a41d0629 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -21,7 +21,6 @@
 #include <asm/setup.h>
 #include <asm/page.h>
 #include <asm/irq.h>
-#include <asm/prom.h>
 #include <asm/unwind.h>
 #include <asm/clk.h>
 #include <asm/mach_desc.h>
-- 
cgit 


From 0b81430590882954ed60a138ac2bad1149303165 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Sun, 8 Sep 2013 14:27:41 -0500
Subject: hexagon: remove unnecessary prom.h includes

Hexagon does not have a prom.h header, so it is probably broken with
CONFIG_OF enabled. In any case, remove unnecessary prom.h include in
preparation to make prom.h optional.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Richard Kuo <rkuo@codeaurora.org>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: linux-hexagon@vger.kernel.org
---
 arch/hexagon/kernel/setup.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/hexagon/kernel/setup.c b/arch/hexagon/kernel/setup.c
index 29d1f1b00016..0e7c1dbb37b2 100644
--- a/arch/hexagon/kernel/setup.c
+++ b/arch/hexagon/kernel/setup.c
@@ -32,9 +32,6 @@
 #include <asm/hexagon_vm.h>
 #include <asm/vm_mmu.h>
 #include <asm/time.h>
-#ifdef CONFIG_OF
-#include <asm/prom.h>
-#endif
 
 char cmd_line[COMMAND_LINE_SIZE];
 static char default_command_line[COMMAND_LINE_SIZE] __initdata = CONFIG_CMDLINE;
-- 
cgit 


From 7b009939af9bc7b698d7ddec03d53604efff881c Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Sun, 8 Sep 2013 14:27:53 -0500
Subject: metag: move setup_machine_fdt declaration from prom.h

Move setup_machine_fdt out of prom.h and into asm/setup.h in preparation
to remove prom.h.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: linux-metag@vger.kernel.org
---
 arch/metag/include/asm/prom.h  | 2 --
 arch/metag/include/asm/setup.h | 1 +
 arch/metag/kernel/setup.c      | 1 -
 3 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/metag/include/asm/prom.h b/arch/metag/include/asm/prom.h
index 9f67cbf3dcb7..e19022c5a0cb 100644
--- a/arch/metag/include/asm/prom.h
+++ b/arch/metag/include/asm/prom.h
@@ -14,10 +14,8 @@
 #ifndef __ASM_METAG_PROM_H
 #define __ASM_METAG_PROM_H
 
-#include <asm/setup.h>
 #define HAVE_ARCH_DEVTREE_FIXUPS
 
-extern const struct machine_desc *setup_machine_fdt(void *dt);
 extern void copy_fdt(void);
 
 #endif /* __ASM_METAG_PROM_H */
diff --git a/arch/metag/include/asm/setup.h b/arch/metag/include/asm/setup.h
index e13083b15dd0..e9fdee9452b1 100644
--- a/arch/metag/include/asm/setup.h
+++ b/arch/metag/include/asm/setup.h
@@ -3,6 +3,7 @@
 
 #include <uapi/asm/setup.h>
 
+extern const struct machine_desc *setup_machine_fdt(void *dt);
 void per_cpu_trap_init(unsigned long);
 extern void __init dump_machine_table(void);
 #endif /* _ASM_METAG_SETUP_H */
diff --git a/arch/metag/kernel/setup.c b/arch/metag/kernel/setup.c
index 92cc119594d3..8c4b3976bebf 100644
--- a/arch/metag/kernel/setup.c
+++ b/arch/metag/kernel/setup.c
@@ -42,7 +42,6 @@
 #include <asm/mmu.h>
 #include <asm/mmzone.h>
 #include <asm/processor.h>
-#include <asm/prom.h>
 #include <asm/sections.h>
 #include <asm/setup.h>
 #include <asm/traps.h>
-- 
cgit 


From 5c9f303e996516dd0dcc2ce8c2b95504d3137b19 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Sat, 7 Sep 2013 14:05:10 -0500
Subject: microblaze: clean-up prom.h implicit includes

While powerpc is a mess of implicit includes by prom.h, microblaze just
copied this and is easily fixed. Add the necessary explicit includes and
remove unnecessary includes and other parts from prom.h

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: microblaze-uclinux@itee.uq.edu.au
Cc: netdev@vger.kernel.org
---
 arch/microblaze/include/asm/prom.h          | 28 +---------------------------
 arch/microblaze/kernel/prom.c               |  1 +
 arch/microblaze/kernel/setup.c              |  1 +
 arch/microblaze/kernel/timer.c              |  1 +
 arch/microblaze/pci/pci-common.c            |  1 +
 drivers/net/ethernet/xilinx/ll_temac_main.c |  1 +
 6 files changed, 6 insertions(+), 27 deletions(-)

diff --git a/arch/microblaze/include/asm/prom.h b/arch/microblaze/include/asm/prom.h
index 9977816c5ad3..f05bedce70d0 100644
--- a/arch/microblaze/include/asm/prom.h
+++ b/arch/microblaze/include/asm/prom.h
@@ -11,17 +11,10 @@
  * as published by the Free Software Foundation; either version
  * 2 of the License, or (at your option) any later version.
  */
-
-#include <linux/of.h>	/* linux/of.h gets to determine #include ordering */
-
 #ifndef _ASM_MICROBLAZE_PROM_H
 #define _ASM_MICROBLAZE_PROM_H
-#ifdef __KERNEL__
-#ifndef __ASSEMBLY__
 
-#include <linux/types.h>
-#include <asm/irq.h>
-#include <linux/atomic.h>
+#include <linux/of.h>
 
 #define HAVE_ARCH_DEVTREE_FIXUPS
 
@@ -42,23 +35,4 @@ extern unsigned long pci_address_to_pio(phys_addr_t address);
 #define pci_address_to_pio pci_address_to_pio
 #endif	/* CONFIG_PCI */
 
-/* Parse the ibm,dma-window property of an OF node into the busno, phys and
- * size parameters.
- */
-void of_parse_dma_window(struct device_node *dn, const void *dma_window_prop,
-		unsigned long *busno, unsigned long *phys, unsigned long *size);
-
-extern void kdump_move_device_tree(void);
-
-#endif /* __ASSEMBLY__ */
-#endif /* __KERNEL__ */
-
-/* These includes are put at the bottom because they may contain things
- * that are overridden by this file.  Ideally they shouldn't be included
- * by this file, but there are a bunch of .c files that currently depend
- * on it.  Eventually they will be cleaned up. */
-#include <linux/of_fdt.h>
-#include <linux/of_irq.h>
-#include <linux/platform_device.h>
-
 #endif /* _ASM_MICROBLAZE_PROM_H */
diff --git a/arch/microblaze/kernel/prom.c b/arch/microblaze/kernel/prom.c
index cab6dc356119..abdfb10e7eca 100644
--- a/arch/microblaze/kernel/prom.c
+++ b/arch/microblaze/kernel/prom.c
@@ -30,6 +30,7 @@
 #include <linux/debugfs.h>
 #include <linux/irq.h>
 #include <linux/memblock.h>
+#include <linux/of_fdt.h>
 
 #include <asm/prom.h>
 #include <asm/page.h>
diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c
index 6c4efba8a9c7..8de8ebc309f1 100644
--- a/arch/microblaze/kernel/setup.c
+++ b/arch/microblaze/kernel/setup.c
@@ -16,6 +16,7 @@
 #include <linux/initrd.h>
 #include <linux/console.h>
 #include <linux/debugfs.h>
+#include <linux/of_fdt.h>
 
 #include <asm/setup.h>
 #include <asm/sections.h>
diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c
index e4b3f33ef34c..827df4d003c8 100644
--- a/arch/microblaze/kernel/timer.c
+++ b/arch/microblaze/kernel/timer.c
@@ -15,6 +15,7 @@
 #include <linux/clk.h>
 #include <linux/clockchips.h>
 #include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <asm/cpuinfo.h>
 #include <linux/cnt32_to_63.h>
 
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index 1b93bf0892a0..7c8a35238f74 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -29,6 +29,7 @@
 #include <linux/slab.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_pci.h>
 #include <linux/export.h>
 
diff --git a/drivers/net/ethernet/xilinx/ll_temac_main.c b/drivers/net/ethernet/xilinx/ll_temac_main.c
index b88121f240ca..22478d54f5bb 100644
--- a/drivers/net/ethernet/xilinx/ll_temac_main.c
+++ b/drivers/net/ethernet/xilinx/ll_temac_main.c
@@ -36,6 +36,7 @@
 #include <linux/netdevice.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
+#include <linux/of_irq.h>
 #include <linux/of_mdio.h>
 #include <linux/of_platform.h>
 #include <linux/of_address.h>
-- 
cgit 


From 5af5073004071cedd0343eee51d77955037ec6f3 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Tue, 17 Sep 2013 14:28:33 -0500
Subject: drivers: clean-up prom.h implicit includes

Powerpc is a mess of implicit includes by prom.h. Add the necessary
explicit includes to drivers in preparation of prom.h cleanup.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
---
 drivers/ata/sata_fsl.c                               | 2 ++
 drivers/char/bsr.c                                   | 1 +
 drivers/char/hw_random/pasemi-rng.c                  | 1 +
 drivers/cpufreq/pasemi-cpufreq.c                     | 1 +
 drivers/crypto/caam/ctrl.c                           | 3 +++
 drivers/crypto/caam/jr.c                             | 2 ++
 drivers/crypto/talitos.c                             | 2 ++
 drivers/dma/bestcomm/sram.c                          | 1 +
 drivers/dma/fsldma.c                                 | 2 ++
 drivers/dma/mpc512x_dma.c                            | 2 ++
 drivers/edac/cell_edac.c                             | 1 +
 drivers/gpio/gpio-mpc8xxx.c                          | 1 +
 drivers/i2c/busses/i2c-ibm_iic.c                     | 2 ++
 drivers/i2c/busses/i2c-mpc.c                         | 2 ++
 drivers/i2c/busses/i2c-powermac.c                    | 1 +
 drivers/input/serio/xilinx_ps2.c                     | 1 +
 drivers/macintosh/macio_asic.c                       | 2 ++
 drivers/macintosh/rack-meter.c                       | 2 ++
 drivers/macintosh/smu.c                              | 1 +
 drivers/macintosh/via-pmu.c                          | 2 ++
 drivers/media/platform/fsl-viu.c                     | 2 ++
 drivers/misc/carma/carma-fpga-program.c              | 2 ++
 drivers/misc/carma/carma-fpga.c                      | 2 ++
 drivers/mtd/nand/fsl_elbc_nand.c                     | 1 +
 drivers/mtd/nand/fsl_ifc_nand.c                      | 1 +
 drivers/mtd/nand/fsl_upm.c                           | 1 +
 drivers/mtd/nand/mpc5121_nfc.c                       | 2 ++
 drivers/mtd/nand/ndfc.c                              | 1 +
 drivers/mtd/nand/pasemi_nand.c                       | 2 ++
 drivers/net/ethernet/freescale/fs_enet/mac-fcc.c     | 2 ++
 drivers/net/ethernet/freescale/fs_enet/mac-fec.c     | 2 ++
 drivers/net/ethernet/freescale/fs_enet/mac-scc.c     | 2 ++
 drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c | 1 +
 drivers/net/ethernet/freescale/fs_enet/mii-fec.c     | 1 +
 drivers/net/ethernet/freescale/gianfar.c             | 2 ++
 drivers/net/ethernet/freescale/ucc_geth.c            | 2 ++
 drivers/net/ethernet/freescale/xgmac_mdio.c          | 1 +
 drivers/net/ethernet/ibm/emac/core.c                 | 2 ++
 drivers/net/ethernet/ibm/emac/mal.c                  | 1 +
 drivers/net/ethernet/ibm/emac/rgmii.c                | 1 +
 drivers/net/ethernet/ibm/emac/tah.c                  | 1 +
 drivers/net/ethernet/ibm/emac/zmii.c                 | 1 +
 drivers/pcmcia/electra_cf.c                          | 2 ++
 drivers/rtc/rtc-mpc5121.c                            | 2 ++
 drivers/spi/spi-fsl-cpm.c                            | 1 +
 drivers/spi/spi-fsl-espi.c                           | 2 ++
 drivers/spi/spi-mpc512x-psc.c                        | 1 +
 drivers/tty/ehv_bytechan.c                           | 1 +
 drivers/tty/serial/cpm_uart/cpm_uart_core.c          | 2 ++
 drivers/tty/serial/cpm_uart/cpm_uart_cpm1.c          | 1 +
 drivers/tty/serial/pmac_zilog.c                      | 2 ++
 drivers/tty/serial/ucc_uart.c                        | 2 ++
 drivers/usb/gadget/fsl_qe_udc.c                      | 1 +
 drivers/usb/host/ehci-ppc-of.c                       | 2 ++
 drivers/usb/host/fhci-hcd.c                          | 2 ++
 drivers/usb/host/ohci-ppc-of.c                       | 2 ++
 drivers/video/fsl-diu-fb.c                           | 2 ++
 drivers/virt/fsl_hypervisor.c                        | 1 +
 drivers/watchdog/gef_wdt.c                           | 1 +
 drivers/watchdog/mpc8xxx_wdt.c                       | 1 +
 sound/aoa/core/gpio-feature.c                        | 3 ++-
 sound/aoa/soundbus/i2sbus/core.c                     | 2 ++
 sound/ppc/pmac.c                                     | 2 ++
 sound/ppc/tumbler.c                                  | 1 +
 sound/soc/fsl/fsl_dma.c                              | 2 ++
 sound/soc/fsl/mpc5200_dma.c                          | 2 ++
 sound/soc/fsl/mpc5200_psc_ac97.c                     | 2 +-
 sound/soc/fsl/mpc8610_hpcd.c                         | 1 +
 sound/soc/fsl/p1022_ds.c                             | 1 +
 sound/soc/fsl/p1022_rdk.c                            | 1 +
 70 files changed, 108 insertions(+), 2 deletions(-)

diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index 851bd3f43ac6..fb0b40a191c2 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -24,6 +24,8 @@
 #include <scsi/scsi_cmnd.h>
 #include <linux/libata.h>
 #include <asm/io.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 
 static unsigned int intr_coalescing_count;
diff --git a/drivers/char/bsr.c b/drivers/char/bsr.c
index 0671e45daa57..8fedbc250414 100644
--- a/drivers/char/bsr.c
+++ b/drivers/char/bsr.c
@@ -21,6 +21,7 @@
 
 #include <linux/kernel.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <linux/of_device.h>
 #include <linux/of_platform.h>
 #include <linux/fs.h>
diff --git a/drivers/char/hw_random/pasemi-rng.c b/drivers/char/hw_random/pasemi-rng.c
index c6df5b29af08..c66279bb6ef3 100644
--- a/drivers/char/hw_random/pasemi-rng.c
+++ b/drivers/char/hw_random/pasemi-rng.c
@@ -24,6 +24,7 @@
 #include <linux/platform_device.h>
 #include <linux/hw_random.h>
 #include <linux/delay.h>
+#include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <asm/io.h>
 
diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c
index 534e43a60d1f..f4ec8145b3d1 100644
--- a/drivers/cpufreq/pasemi-cpufreq.c
+++ b/drivers/cpufreq/pasemi-cpufreq.c
@@ -28,6 +28,7 @@
 #include <linux/cpufreq.h>
 #include <linux/timer.h>
 #include <linux/module.h>
+#include <linux/of_address.h>
 
 #include <asm/hw_irq.h>
 #include <asm/io.h>
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index b010d42a1803..30548701665c 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -5,6 +5,9 @@
  * Copyright 2008-2012 Freescale Semiconductor, Inc.
  */
 
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+
 #include "compat.h"
 #include "regs.h"
 #include "intern.h"
diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c
index 105ba4da6180..94b80a937647 100644
--- a/drivers/crypto/caam/jr.c
+++ b/drivers/crypto/caam/jr.c
@@ -5,6 +5,8 @@
  * Copyright 2008-2012 Freescale Semiconductor, Inc.
  */
 
+#include <linux/of_irq.h>
+
 #include "compat.h"
 #include "regs.h"
 #include "jr.h"
diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 661dc3eb1d66..6cd0e6038583 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -32,6 +32,8 @@
 #include <linux/interrupt.h>
 #include <linux/crypto.h>
 #include <linux/hw_random.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/dma-mapping.h>
 #include <linux/io.h>
diff --git a/drivers/dma/bestcomm/sram.c b/drivers/dma/bestcomm/sram.c
index 5e2ed30ba2c4..2074e0e3fa21 100644
--- a/drivers/dma/bestcomm/sram.c
+++ b/drivers/dma/bestcomm/sram.c
@@ -19,6 +19,7 @@
 #include <linux/string.h>
 #include <linux/ioport.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 
 #include <asm/io.h>
 #include <asm/mmu.h>
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index b3f3e90054f2..61517dd0d0b7 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -33,6 +33,8 @@
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/dmapool.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 
 #include "dmaengine.h"
diff --git a/drivers/dma/mpc512x_dma.c b/drivers/dma/mpc512x_dma.c
index 2fe435377333..448750da4402 100644
--- a/drivers/dma/mpc512x_dma.c
+++ b/drivers/dma/mpc512x_dma.c
@@ -39,7 +39,9 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/slab.h>
+#include <linux/of_address.h>
 #include <linux/of_device.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 
 #include <linux/random.h>
diff --git a/drivers/edac/cell_edac.c b/drivers/edac/cell_edac.c
index c2eaf334b90b..9ee1c76da7b9 100644
--- a/drivers/edac/cell_edac.c
+++ b/drivers/edac/cell_edac.c
@@ -15,6 +15,7 @@
 #include <linux/platform_device.h>
 #include <linux/stop_machine.h>
 #include <linux/io.h>
+#include <linux/of_address.h>
 #include <asm/machdep.h>
 #include <asm/cell-regs.h>
 
diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index a0b33a216d4a..de9630b08b99 100644
--- a/drivers/gpio/gpio-mpc8xxx.c
+++ b/drivers/gpio/gpio-mpc8xxx.c
@@ -14,6 +14,7 @@
 #include <linux/io.h>
 #include <linux/of.h>
 #include <linux/of_gpio.h>
+#include <linux/of_irq.h>
 #include <linux/gpio.h>
 #include <linux/slab.h>
 #include <linux/irq.h>
diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
index ff3caa0c28cd..f7444100f397 100644
--- a/drivers/i2c/busses/i2c-ibm_iic.c
+++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -41,6 +41,8 @@
 #include <asm/irq.h>
 #include <linux/io.h>
 #include <linux/i2c.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 
 #include "i2c-ibm_iic.h"
diff --git a/drivers/i2c/busses/i2c-mpc.c b/drivers/i2c/busses/i2c-mpc.c
index b80c76888cab..b6a741caf4f6 100644
--- a/drivers/i2c/busses/i2c-mpc.c
+++ b/drivers/i2c/busses/i2c-mpc.c
@@ -17,6 +17,8 @@
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/init.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/slab.h>
 
diff --git a/drivers/i2c/busses/i2c-powermac.c b/drivers/i2c/busses/i2c-powermac.c
index 37e8cfad625b..8c87f4a9793b 100644
--- a/drivers/i2c/busses/i2c-powermac.c
+++ b/drivers/i2c/busses/i2c-powermac.c
@@ -27,6 +27,7 @@
 #include <linux/init.h>
 #include <linux/device.h>
 #include <linux/platform_device.h>
+#include <linux/of_irq.h>
 #include <asm/prom.h>
 #include <asm/pmac_low_i2c.h>
 
diff --git a/drivers/input/serio/xilinx_ps2.c b/drivers/input/serio/xilinx_ps2.c
index 4b7662a17ae9..b90eb4fb2b5b 100644
--- a/drivers/input/serio/xilinx_ps2.c
+++ b/drivers/input/serio/xilinx_ps2.c
@@ -25,6 +25,7 @@
 #include <linux/io.h>
 #include <linux/of_address.h>
 #include <linux/of_device.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 
 #define DRIVER_NAME		"xilinx_ps2"
diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c
index ac5c87939860..4f12c6f01fe7 100644
--- a/drivers/macintosh/macio_asic.c
+++ b/drivers/macintosh/macio_asic.c
@@ -24,6 +24,8 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/slab.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 
 #include <asm/machdep.h>
 #include <asm/macio.h>
diff --git a/drivers/macintosh/rack-meter.c b/drivers/macintosh/rack-meter.c
index cad0e19b47a2..4192901cab40 100644
--- a/drivers/macintosh/rack-meter.c
+++ b/drivers/macintosh/rack-meter.c
@@ -25,6 +25,8 @@
 #include <linux/pci.h>
 #include <linux/dma-mapping.h>
 #include <linux/kernel_stat.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 
 #include <asm/io.h>
 #include <asm/prom.h>
diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c
index b3b2d36c009e..23b4a3b28dbc 100644
--- a/drivers/macintosh/smu.c
+++ b/drivers/macintosh/smu.c
@@ -35,6 +35,7 @@
 #include <linux/poll.h>
 #include <linux/mutex.h>
 #include <linux/of_device.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/slab.h>
 
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index 283e1b53c6be..dee88e59f0d3 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -46,6 +46,8 @@
 #include <linux/suspend.h>
 #include <linux/cpu.h>
 #include <linux/compat.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <asm/prom.h>
 #include <asm/machdep.h>
 #include <asm/io.h>
diff --git a/drivers/media/platform/fsl-viu.c b/drivers/media/platform/fsl-viu.c
index fe9898ca3c84..6a232239ee8c 100644
--- a/drivers/media/platform/fsl-viu.c
+++ b/drivers/media/platform/fsl-viu.c
@@ -21,6 +21,8 @@
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/slab.h>
 #include <media/v4l2-common.h>
diff --git a/drivers/misc/carma/carma-fpga-program.c b/drivers/misc/carma/carma-fpga-program.c
index c6bd7e84de24..7be89832db19 100644
--- a/drivers/misc/carma/carma-fpga-program.c
+++ b/drivers/misc/carma/carma-fpga-program.c
@@ -10,6 +10,8 @@
  */
 
 #include <linux/dma-mapping.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/completion.h>
 #include <linux/miscdevice.h>
diff --git a/drivers/misc/carma/carma-fpga.c b/drivers/misc/carma/carma-fpga.c
index 7b56563f8b74..08b18f3f5264 100644
--- a/drivers/misc/carma/carma-fpga.c
+++ b/drivers/misc/carma/carma-fpga.c
@@ -88,6 +88,8 @@
  * interrupt source to the GPIO pin. Tada, we hid the interrupt. :)
  */
 
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/dma-mapping.h>
 #include <linux/miscdevice.h>
diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c
index 20657209a472..e59c8860f472 100644
--- a/drivers/mtd/nand/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/fsl_elbc_nand.c
@@ -28,6 +28,7 @@
 #include <linux/kernel.h>
 #include <linux/string.h>
 #include <linux/ioport.h>
+#include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index 317a771f1587..2730c78d2bf8 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -24,6 +24,7 @@
 #include <linux/types.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
+#include <linux/of_address.h>
 #include <linux/slab.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c
index 04e07252d74b..4d203e84e8ca 100644
--- a/drivers/mtd/nand/fsl_upm.c
+++ b/drivers/mtd/nand/fsl_upm.c
@@ -18,6 +18,7 @@
 #include <linux/mtd/nand_ecc.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/mtd.h>
+#include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/of_gpio.h>
 #include <linux/io.h>
diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c
index 3c60a000b426..439bc3896418 100644
--- a/drivers/mtd/nand/mpc5121_nfc.c
+++ b/drivers/mtd/nand/mpc5121_nfc.c
@@ -36,7 +36,9 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
+#include <linux/of_address.h>
 #include <linux/of_device.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 
 #include <asm/mpc5121.h>
diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c
index 8e148f1478fd..69eaba690a99 100644
--- a/drivers/mtd/nand/ndfc.c
+++ b/drivers/mtd/nand/ndfc.c
@@ -30,6 +30,7 @@
 #include <linux/mtd/ndfc.h>
 #include <linux/slab.h>
 #include <linux/mtd/mtd.h>
+#include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <asm/io.h>
 
diff --git a/drivers/mtd/nand/pasemi_nand.c b/drivers/mtd/nand/pasemi_nand.c
index 5a67082c07ee..4d174366a0f0 100644
--- a/drivers/mtd/nand/pasemi_nand.c
+++ b/drivers/mtd/nand/pasemi_nand.c
@@ -28,6 +28,8 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/nand_ecc.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/pci.h>
diff --git a/drivers/net/ethernet/freescale/fs_enet/mac-fcc.c b/drivers/net/ethernet/freescale/fs_enet/mac-fcc.c
index 7583a9572bcc..005c2e06b8c0 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mac-fcc.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mac-fcc.c
@@ -32,7 +32,9 @@
 #include <linux/fs.h>
 #include <linux/platform_device.h>
 #include <linux/phy.h>
+#include <linux/of_address.h>
 #include <linux/of_device.h>
+#include <linux/of_irq.h>
 #include <linux/gfp.h>
 
 #include <asm/immap_cpm2.h>
diff --git a/drivers/net/ethernet/freescale/fs_enet/mac-fec.c b/drivers/net/ethernet/freescale/fs_enet/mac-fec.c
index 9ae6cdbcac2e..8aac2316d0f3 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mac-fec.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mac-fec.c
@@ -31,7 +31,9 @@
 #include <linux/bitops.h>
 #include <linux/fs.h>
 #include <linux/platform_device.h>
+#include <linux/of_address.h>
 #include <linux/of_device.h>
+#include <linux/of_irq.h>
 #include <linux/gfp.h>
 
 #include <asm/irq.h>
diff --git a/drivers/net/ethernet/freescale/fs_enet/mac-scc.c b/drivers/net/ethernet/freescale/fs_enet/mac-scc.c
index 22a02a767069..e151784c5ebd 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mac-scc.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mac-scc.c
@@ -31,6 +31,8 @@
 #include <linux/bitops.h>
 #include <linux/fs.h>
 #include <linux/platform_device.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 
 #include <asm/irq.h>
diff --git a/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c b/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c
index 844ecfa84d17..67caaacd19ec 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mii-bitbang.c
@@ -22,6 +22,7 @@
 #include <linux/mii.h>
 #include <linux/platform_device.h>
 #include <linux/mdio-bitbang.h>
+#include <linux/of_address.h>
 #include <linux/of_mdio.h>
 #include <linux/of_platform.h>
 
diff --git a/drivers/net/ethernet/freescale/fs_enet/mii-fec.c b/drivers/net/ethernet/freescale/fs_enet/mii-fec.c
index 2f1c46a12f05..ac5d447ff8c4 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mii-fec.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mii-fec.c
@@ -31,6 +31,7 @@
 #include <linux/ethtool.h>
 #include <linux/bitops.h>
 #include <linux/platform_device.h>
+#include <linux/of_address.h>
 #include <linux/of_platform.h>
 
 #include <asm/pgtable.h>
diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index c4eaadeb572f..c49abb478e84 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -78,6 +78,8 @@
 #include <linux/if_vlan.h>
 #include <linux/spinlock.h>
 #include <linux/mm.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_mdio.h>
 #include <linux/of_platform.h>
 #include <linux/ip.h>
diff --git a/drivers/net/ethernet/freescale/ucc_geth.c b/drivers/net/ethernet/freescale/ucc_geth.c
index 5930c39672db..64b329fecf3d 100644
--- a/drivers/net/ethernet/freescale/ucc_geth.c
+++ b/drivers/net/ethernet/freescale/ucc_geth.c
@@ -31,6 +31,8 @@
 #include <linux/mii.h>
 #include <linux/phy.h>
 #include <linux/workqueue.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_mdio.h>
 #include <linux/of_net.h>
 #include <linux/of_platform.h>
diff --git a/drivers/net/ethernet/freescale/xgmac_mdio.c b/drivers/net/ethernet/freescale/xgmac_mdio.c
index c1b6e7e31aac..d449fcb90199 100644
--- a/drivers/net/ethernet/freescale/xgmac_mdio.c
+++ b/drivers/net/ethernet/freescale/xgmac_mdio.c
@@ -17,6 +17,7 @@
 #include <linux/module.h>
 #include <linux/phy.h>
 #include <linux/mdio.h>
+#include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/of_mdio.h>
 
diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c
index 6b5c7222342c..cdf2321f1f0f 100644
--- a/drivers/net/ethernet/ibm/emac/core.c
+++ b/drivers/net/ethernet/ibm/emac/core.c
@@ -39,6 +39,8 @@
 #include <linux/bitops.h>
 #include <linux/workqueue.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_net.h>
 #include <linux/slab.h>
 
diff --git a/drivers/net/ethernet/ibm/emac/mal.c b/drivers/net/ethernet/ibm/emac/mal.c
index dac564c25440..4742ba3909fb 100644
--- a/drivers/net/ethernet/ibm/emac/mal.c
+++ b/drivers/net/ethernet/ibm/emac/mal.c
@@ -27,6 +27,7 @@
 
 #include <linux/delay.h>
 #include <linux/slab.h>
+#include <linux/of_irq.h>
 
 #include "core.h"
 #include <asm/dcr-regs.h>
diff --git a/drivers/net/ethernet/ibm/emac/rgmii.c b/drivers/net/ethernet/ibm/emac/rgmii.c
index c47e23d6eeaa..4fb2f96da23b 100644
--- a/drivers/net/ethernet/ibm/emac/rgmii.c
+++ b/drivers/net/ethernet/ibm/emac/rgmii.c
@@ -24,6 +24,7 @@
 #include <linux/slab.h>
 #include <linux/kernel.h>
 #include <linux/ethtool.h>
+#include <linux/of_address.h>
 #include <asm/io.h>
 
 #include "emac.h"
diff --git a/drivers/net/ethernet/ibm/emac/tah.c b/drivers/net/ethernet/ibm/emac/tah.c
index c231a4a32c4d..9f24769ed826 100644
--- a/drivers/net/ethernet/ibm/emac/tah.c
+++ b/drivers/net/ethernet/ibm/emac/tah.c
@@ -18,6 +18,7 @@
  * Free Software Foundation;  either version 2 of the  License, or (at your
  * option) any later version.
  */
+#include <linux/of_address.h>
 #include <asm/io.h>
 
 #include "emac.h"
diff --git a/drivers/net/ethernet/ibm/emac/zmii.c b/drivers/net/ethernet/ibm/emac/zmii.c
index 4cdf286f7ee3..9ca67a38c062 100644
--- a/drivers/net/ethernet/ibm/emac/zmii.c
+++ b/drivers/net/ethernet/ibm/emac/zmii.c
@@ -24,6 +24,7 @@
 #include <linux/slab.h>
 #include <linux/kernel.h>
 #include <linux/ethtool.h>
+#include <linux/of_address.h>
 #include <asm/io.h>
 
 #include "emac.h"
diff --git a/drivers/pcmcia/electra_cf.c b/drivers/pcmcia/electra_cf.c
index a007321ad314..1b206eac5f93 100644
--- a/drivers/pcmcia/electra_cf.c
+++ b/drivers/pcmcia/electra_cf.c
@@ -30,6 +30,8 @@
 #include <linux/interrupt.h>
 #include <linux/mm.h>
 #include <linux/vmalloc.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/slab.h>
 
diff --git a/drivers/rtc/rtc-mpc5121.c b/drivers/rtc/rtc-mpc5121.c
index 9c8f60903799..dc4f14255cc3 100644
--- a/drivers/rtc/rtc-mpc5121.c
+++ b/drivers/rtc/rtc-mpc5121.c
@@ -14,7 +14,9 @@
 #include <linux/module.h>
 #include <linux/rtc.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <linux/of_device.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/io.h>
 #include <linux/slab.h>
diff --git a/drivers/spi/spi-fsl-cpm.c b/drivers/spi/spi-fsl-cpm.c
index 07971e3fe58b..bd5aaf42719c 100644
--- a/drivers/spi/spi-fsl-cpm.c
+++ b/drivers/spi/spi-fsl-cpm.c
@@ -20,6 +20,7 @@
 #include <linux/spi/spi.h>
 #include <linux/fsl_devices.h>
 #include <linux/dma-mapping.h>
+#include <linux/of_address.h>
 #include <asm/cpm.h>
 #include <asm/qe.h>
 
diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c
index b8f1103fe28e..c1c936cf0ed4 100644
--- a/drivers/spi/spi-fsl-espi.c
+++ b/drivers/spi/spi-fsl-espi.c
@@ -16,6 +16,8 @@
 #include <linux/fsl_devices.h>
 #include <linux/mm.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/interrupt.h>
 #include <linux/err.h>
diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c
index dbc5e999a1f5..6148b1dae94c 100644
--- a/drivers/spi/spi-mpc512x-psc.c
+++ b/drivers/spi/spi-mpc512x-psc.c
@@ -20,6 +20,7 @@
 #include <linux/errno.h>
 #include <linux/interrupt.h>
 #include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/completion.h>
 #include <linux/io.h>
diff --git a/drivers/tty/ehv_bytechan.c b/drivers/tty/ehv_bytechan.c
index 9bffcec5ad82..0419b69e270f 100644
--- a/drivers/tty/ehv_bytechan.c
+++ b/drivers/tty/ehv_bytechan.c
@@ -32,6 +32,7 @@
 #include <linux/poll.h>
 #include <asm/epapr_hcalls.h>
 #include <linux/of.h>
+#include <linux/of_irq.h>
 #include <linux/platform_device.h>
 #include <linux/cdev.h>
 #include <linux/console.h>
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_core.c b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
index 1a535f70dc41..9f7ba6d8750a 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
@@ -41,6 +41,8 @@
 #include <linux/bootmem.h>
 #include <linux/dma-mapping.h>
 #include <linux/fs_uart_pd.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/gpio.h>
 #include <linux/of_gpio.h>
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_cpm1.c b/drivers/tty/serial/cpm_uart/cpm_uart_cpm1.c
index 18f79575894a..527a969b0952 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_cpm1.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_cpm1.c
@@ -45,6 +45,7 @@
 #include <linux/kernel.h>
 
 #include <linux/of.h>
+#include <linux/of_address.h>
 
 #include "cpm_uart.h"
 
diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c
index f87f1a0c8c6e..246b4c327a54 100644
--- a/drivers/tty/serial/pmac_zilog.c
+++ b/drivers/tty/serial/pmac_zilog.c
@@ -57,6 +57,8 @@
 #include <linux/bitops.h>
 #include <linux/sysrq.h>
 #include <linux/mutex.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <asm/sections.h>
 #include <asm/io.h>
 #include <asm/irq.h>
diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c
index 88317482b81f..9de1da0c9d89 100644
--- a/drivers/tty/serial/ucc_uart.c
+++ b/drivers/tty/serial/ucc_uart.c
@@ -25,6 +25,8 @@
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
 #include <linux/io.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/dma-mapping.h>
 
diff --git a/drivers/usb/gadget/fsl_qe_udc.c b/drivers/usb/gadget/fsl_qe_udc.c
index f3bb363f1d4a..807127d56fa3 100644
--- a/drivers/usb/gadget/fsl_qe_udc.c
+++ b/drivers/usb/gadget/fsl_qe_udc.c
@@ -33,6 +33,7 @@
 #include <linux/io.h>
 #include <linux/moduleparam.h>
 #include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/dma-mapping.h>
 #include <linux/usb/ch9.h>
diff --git a/drivers/usb/host/ehci-ppc-of.c b/drivers/usb/host/ehci-ppc-of.c
index 932293fa32de..2b1694e6b480 100644
--- a/drivers/usb/host/ehci-ppc-of.c
+++ b/drivers/usb/host/ehci-ppc-of.c
@@ -16,6 +16,8 @@
 #include <linux/signal.h>
 
 #include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 
 
diff --git a/drivers/usb/host/fhci-hcd.c b/drivers/usb/host/fhci-hcd.c
index 0b46542591ff..0551c0af0fd1 100644
--- a/drivers/usb/host/fhci-hcd.c
+++ b/drivers/usb/host/fhci-hcd.c
@@ -26,6 +26,8 @@
 #include <linux/io.h>
 #include <linux/usb.h>
 #include <linux/usb/hcd.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/of_gpio.h>
 #include <linux/slab.h>
diff --git a/drivers/usb/host/ohci-ppc-of.c b/drivers/usb/host/ohci-ppc-of.c
index 75f5a1e2f01e..81f3eba215c1 100644
--- a/drivers/usb/host/ohci-ppc-of.c
+++ b/drivers/usb/host/ohci-ppc-of.c
@@ -14,6 +14,8 @@
  */
 
 #include <linux/signal.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 
 #include <asm/prom.h>
diff --git a/drivers/video/fsl-diu-fb.c b/drivers/video/fsl-diu-fb.c
index 6dd72250111e..b047ec58ac30 100644
--- a/drivers/video/fsl-diu-fb.c
+++ b/drivers/video/fsl-diu-fb.c
@@ -31,6 +31,8 @@
 #include <linux/uaccess.h>
 #include <linux/vmalloc.h>
 #include <linux/spinlock.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 
 #include <sysdev/fsl_soc.h>
 #include <linux/fsl-diu-fb.h>
diff --git a/drivers/virt/fsl_hypervisor.c b/drivers/virt/fsl_hypervisor.c
index d294f67d6f84..32c8fc5f7a5c 100644
--- a/drivers/virt/fsl_hypervisor.c
+++ b/drivers/virt/fsl_hypervisor.c
@@ -34,6 +34,7 @@
 #include <linux/slab.h>
 #include <linux/poll.h>
 #include <linux/of.h>
+#include <linux/of_irq.h>
 #include <linux/reboot.h>
 #include <linux/uaccess.h>
 #include <linux/notifier.h>
diff --git a/drivers/watchdog/gef_wdt.c b/drivers/watchdog/gef_wdt.c
index 257cfbad21da..3755833430dc 100644
--- a/drivers/watchdog/gef_wdt.c
+++ b/drivers/watchdog/gef_wdt.c
@@ -34,6 +34,7 @@
 #include <linux/watchdog.h>
 #include <linux/fs.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/io.h>
 #include <linux/uaccess.h>
diff --git a/drivers/watchdog/mpc8xxx_wdt.c b/drivers/watchdog/mpc8xxx_wdt.c
index da2752063bb7..d0ebebae607c 100644
--- a/drivers/watchdog/mpc8xxx_wdt.c
+++ b/drivers/watchdog/mpc8xxx_wdt.c
@@ -24,6 +24,7 @@
 #include <linux/kernel.h>
 #include <linux/timer.h>
 #include <linux/miscdevice.h>
+#include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/module.h>
 #include <linux/watchdog.h>
diff --git a/sound/aoa/core/gpio-feature.c b/sound/aoa/core/gpio-feature.c
index faa317490545..f34153962d07 100644
--- a/sound/aoa/core/gpio-feature.c
+++ b/sound/aoa/core/gpio-feature.c
@@ -10,8 +10,9 @@
  * registers.
  */
 
-#include <asm/pmac_feature.h>
+#include <linux/of_irq.h>
 #include <linux/interrupt.h>
+#include <asm/pmac_feature.h>
 #include "../aoa.h"
 
 /* TODO: these are lots of global variables
diff --git a/sound/aoa/soundbus/i2sbus/core.c b/sound/aoa/soundbus/i2sbus/core.c
index 15e76131b501..467836057ee5 100644
--- a/sound/aoa/soundbus/i2sbus/core.c
+++ b/sound/aoa/soundbus/i2sbus/core.c
@@ -11,6 +11,8 @@
 #include <linux/pci.h>
 #include <linux/interrupt.h>
 #include <linux/dma-mapping.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 
 #include <sound/core.h>
 
diff --git a/sound/ppc/pmac.c b/sound/ppc/pmac.c
index c93fbbb201fe..7a43c0c38316 100644
--- a/sound/ppc/pmac.c
+++ b/sound/ppc/pmac.c
@@ -28,6 +28,8 @@
 #include <linux/interrupt.h>
 #include <linux/pci.h>
 #include <linux/dma-mapping.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <sound/core.h>
 #include "pmac.h"
 #include <sound/pcm_params.h>
diff --git a/sound/ppc/tumbler.c b/sound/ppc/tumbler.c
index b23354a4ceca..b9ffc17a4799 100644
--- a/sound/ppc/tumbler.c
+++ b/sound/ppc/tumbler.c
@@ -31,6 +31,7 @@
 #include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <linux/string.h>
+#include <linux/of_irq.h>
 #include <sound/core.h>
 #include <asm/io.h>
 #include <asm/irq.h>
diff --git a/sound/soc/fsl/fsl_dma.c b/sound/soc/fsl/fsl_dma.c
index 9cc5c1f82f09..d1b111e7fc07 100644
--- a/sound/soc/fsl/fsl_dma.c
+++ b/sound/soc/fsl/fsl_dma.c
@@ -21,6 +21,8 @@
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 #include <linux/gfp.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/list.h>
 #include <linux/slab.h>
diff --git a/sound/soc/fsl/mpc5200_dma.c b/sound/soc/fsl/mpc5200_dma.c
index 2a847ca494b5..161e5055ce94 100644
--- a/sound/soc/fsl/mpc5200_dma.c
+++ b/sound/soc/fsl/mpc5200_dma.c
@@ -10,6 +10,8 @@
 #include <linux/of_device.h>
 #include <linux/dma-mapping.h>
 #include <linux/slab.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 
 #include <sound/soc.h>
diff --git a/sound/soc/fsl/mpc5200_psc_ac97.c b/sound/soc/fsl/mpc5200_psc_ac97.c
index 3ef7a0c92efa..24eafa2cfbf4 100644
--- a/sound/soc/fsl/mpc5200_psc_ac97.c
+++ b/sound/soc/fsl/mpc5200_psc_ac97.c
@@ -291,7 +291,7 @@ static int psc_ac97_of_probe(struct platform_device *op)
 
 	rc = snd_soc_set_ac97_ops(&psc_ac97_ops);
 	if (rc != 0) {
-		dev_err(&op->dev, "Failed to set AC'97 ops: %d\n", ret);
+		dev_err(&op->dev, "Failed to set AC'97 ops: %d\n", rc);
 		return rc;
 	}
 
diff --git a/sound/soc/fsl/mpc8610_hpcd.c b/sound/soc/fsl/mpc8610_hpcd.c
index 228c52e71440..fa756d05b2f7 100644
--- a/sound/soc/fsl/mpc8610_hpcd.c
+++ b/sound/soc/fsl/mpc8610_hpcd.c
@@ -12,6 +12,7 @@
 
 #include <linux/module.h>
 #include <linux/interrupt.h>
+#include <linux/of_address.h>
 #include <linux/of_device.h>
 #include <linux/slab.h>
 #include <sound/soc.h>
diff --git a/sound/soc/fsl/p1022_ds.c b/sound/soc/fsl/p1022_ds.c
index ba59c23a137b..f75c3cf0e6de 100644
--- a/sound/soc/fsl/p1022_ds.c
+++ b/sound/soc/fsl/p1022_ds.c
@@ -12,6 +12,7 @@
 
 #include <linux/module.h>
 #include <linux/interrupt.h>
+#include <linux/of_address.h>
 #include <linux/of_device.h>
 #include <linux/slab.h>
 #include <sound/soc.h>
diff --git a/sound/soc/fsl/p1022_rdk.c b/sound/soc/fsl/p1022_rdk.c
index f21551911533..9d89bb028621 100644
--- a/sound/soc/fsl/p1022_rdk.c
+++ b/sound/soc/fsl/p1022_rdk.c
@@ -19,6 +19,7 @@
 
 #include <linux/module.h>
 #include <linux/interrupt.h>
+#include <linux/of_address.h>
 #include <linux/of_device.h>
 #include <linux/slab.h>
 #include <sound/soc.h>
-- 
cgit 


From 089a49b68ce9bfe078d509d96c78a94e5f865ca9 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Sat, 7 Sep 2013 14:58:54 -0500
Subject: mips: add explicit includes of prom.h

In preparation of removing prom.h include by of.h, add explicit includes.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
---
 arch/mips/lantiq/prom.c           | 1 +
 arch/mips/mti-sead3/sead3-setup.c | 2 ++
 arch/mips/ralink/of.c             | 1 +
 3 files changed, 4 insertions(+)

diff --git a/arch/mips/lantiq/prom.c b/arch/mips/lantiq/prom.c
index 49c460370285..19686c5bc5ed 100644
--- a/arch/mips/lantiq/prom.c
+++ b/arch/mips/lantiq/prom.c
@@ -14,6 +14,7 @@
 
 #include <asm/bootinfo.h>
 #include <asm/time.h>
+#include <asm/prom.h>
 
 #include <lantiq.h>
 
diff --git a/arch/mips/mti-sead3/sead3-setup.c b/arch/mips/mti-sead3/sead3-setup.c
index b5059dc899f4..928ba84c8a78 100644
--- a/arch/mips/mti-sead3/sead3-setup.c
+++ b/arch/mips/mti-sead3/sead3-setup.c
@@ -10,6 +10,8 @@
 #include <linux/of_fdt.h>
 #include <linux/bootmem.h>
 
+#include <asm/prom.h>
+
 #include <asm/mips-boards/generic.h>
 
 const char *get_system_type(void)
diff --git a/arch/mips/ralink/of.c b/arch/mips/ralink/of.c
index ce38d11f9da5..58c4fd52202e 100644
--- a/arch/mips/ralink/of.c
+++ b/arch/mips/ralink/of.c
@@ -21,6 +21,7 @@
 #include <asm/reboot.h>
 #include <asm/bootinfo.h>
 #include <asm/addrspace.h>
+#include <asm/prom.h>
 
 #include "common.h"
 
-- 
cgit 


From ba904f0649357a3cbd67e752d30898c42b1fc91a Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Mon, 9 Sep 2013 18:13:22 -0500
Subject: x86: add necessary includes for prom.h

Once prom.h is no longer implicitly included, we need to include setup.h
to get COMMAND_LINE_SIZE.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
---
 arch/x86/kernel/devicetree.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 0e1f95b06336..679d676a30d7 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -20,6 +20,7 @@
 #include <asm/hpet.h>
 #include <asm/apic.h>
 #include <asm/pci_x86.h>
+#include <asm/setup.h>
 
 __initdata u64 initial_dtb;
 char __initdata cmd_line[COMMAND_LINE_SIZE];
-- 
cgit 


From 25ff79443cbfa924b8df1d4a8a0fbff83816938a Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Sat, 7 Sep 2013 14:07:11 -0500
Subject: of: implement pci_address_to_pio as weak function

Implement pci_address_to_pio as weak function to remove the dependency on
asm/prom.h. This is in preparation to make prom.h optional.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Grant Likely <grant.likely@linaro.org>
---
 arch/microblaze/include/asm/prom.h |  9 ---------
 arch/mips/include/asm/prom.h       | 11 -----------
 arch/powerpc/include/asm/prom.h    |  5 -----
 arch/x86/include/asm/prom.h        |  3 ---
 arch/x86/kernel/devicetree.c       | 10 ----------
 drivers/of/address.c               |  8 ++++++++
 drivers/of/of_pci.c                |  1 -
 include/linux/of_address.h         |  5 +----
 8 files changed, 9 insertions(+), 43 deletions(-)

diff --git a/arch/microblaze/include/asm/prom.h b/arch/microblaze/include/asm/prom.h
index f05bedce70d0..0ebd924902df 100644
--- a/arch/microblaze/include/asm/prom.h
+++ b/arch/microblaze/include/asm/prom.h
@@ -26,13 +26,4 @@ enum early_consoles {
 
 extern int of_early_console(void *version);
 
-/*
- * OF address retreival & translation
- */
-
-#ifdef CONFIG_PCI
-extern unsigned long pci_address_to_pio(phys_addr_t address);
-#define pci_address_to_pio pci_address_to_pio
-#endif	/* CONFIG_PCI */
-
 #endif /* _ASM_MICROBLAZE_PROM_H */
diff --git a/arch/mips/include/asm/prom.h b/arch/mips/include/asm/prom.h
index e3dbd0e0608e..ccd2b75f152c 100644
--- a/arch/mips/include/asm/prom.h
+++ b/arch/mips/include/asm/prom.h
@@ -19,17 +19,6 @@
 
 extern void device_tree_init(void);
 
-static inline unsigned long pci_address_to_pio(phys_addr_t address)
-{
-	/*
-	 * The ioport address can be directly used by inX() / outX()
-	 */
-	BUG_ON(address > IO_SPACE_LIMIT);
-
-	return (unsigned long) address;
-}
-#define pci_address_to_pio pci_address_to_pio
-
 struct boot_param_header;
 
 extern void __dt_setup_arch(struct boot_param_header *bph);
diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h
index 7d0c7f3a7171..bd215f74df0f 100644
--- a/arch/powerpc/include/asm/prom.h
+++ b/arch/powerpc/include/asm/prom.h
@@ -30,11 +30,6 @@
 extern u64 of_translate_dma_address(struct device_node *dev,
 				    const __be32 *in_addr);
 
-#ifdef CONFIG_PCI
-extern unsigned long pci_address_to_pio(phys_addr_t address);
-#define pci_address_to_pio pci_address_to_pio
-#endif	/* CONFIG_PCI */
-
 /* Parse the ibm,dma-window property of an OF node into the busno, phys and
  * size parameters.
  */
diff --git a/arch/x86/include/asm/prom.h b/arch/x86/include/asm/prom.h
index bade6ac3b14f..8ef2ec70858f 100644
--- a/arch/x86/include/asm/prom.h
+++ b/arch/x86/include/asm/prom.h
@@ -39,9 +39,6 @@ static inline void x86_dtb_init(void) { }
 
 extern char cmd_line[COMMAND_LINE_SIZE];
 
-#define pci_address_to_pio pci_address_to_pio
-unsigned long pci_address_to_pio(phys_addr_t addr);
-
 #define HAVE_ARCH_DEVTREE_FIXUPS
 
 #endif /* __ASSEMBLY__ */
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 679d676a30d7..cffd07368547 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -27,16 +27,6 @@ char __initdata cmd_line[COMMAND_LINE_SIZE];
 
 int __initdata of_ioapic;
 
-unsigned long pci_address_to_pio(phys_addr_t address)
-{
-	/*
-	 * The ioport address can be directly used by inX / outX
-	 */
-	BUG_ON(address >= (1 << 16));
-	return (unsigned long)address;
-}
-EXPORT_SYMBOL_GPL(pci_address_to_pio);
-
 void __init early_init_dt_scan_chosen_arch(unsigned long node)
 {
 	BUG();
diff --git a/drivers/of/address.c b/drivers/of/address.c
index b55c21890760..556a7fb6ead3 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -626,6 +626,14 @@ const __be32 *of_get_address(struct device_node *dev, int index, u64 *size,
 }
 EXPORT_SYMBOL(of_get_address);
 
+unsigned long __weak pci_address_to_pio(phys_addr_t address)
+{
+	if (address > IO_SPACE_LIMIT)
+		return (unsigned long)-1;
+
+	return (unsigned long) address;
+}
+
 static int __of_address_to_resource(struct device_node *dev,
 		const __be32 *addrp, u64 size, unsigned int flags,
 		const char *name, struct resource *r)
diff --git a/drivers/of/of_pci.c b/drivers/of/of_pci.c
index e5ca00893c0c..848199633798 100644
--- a/drivers/of/of_pci.c
+++ b/drivers/of/of_pci.c
@@ -2,7 +2,6 @@
 #include <linux/export.h>
 #include <linux/of.h>
 #include <linux/of_pci.h>
-#include <asm/prom.h>
 
 static inline int __of_pci_pci_compare(struct device_node *node,
 				       unsigned int data)
diff --git a/include/linux/of_address.h b/include/linux/of_address.h
index 4c2e6f26432c..f6fc6899ceae 100644
--- a/include/linux/of_address.h
+++ b/include/linux/of_address.h
@@ -52,10 +52,7 @@ extern void __iomem *of_iomap(struct device_node *device, int index);
 extern const __be32 *of_get_address(struct device_node *dev, int index,
 			   u64 *size, unsigned int *flags);
 
-#ifndef pci_address_to_pio
-static inline unsigned long pci_address_to_pio(phys_addr_t addr) { return -1; }
-#define pci_address_to_pio pci_address_to_pio
-#endif
+extern unsigned long pci_address_to_pio(phys_addr_t addr);
 
 extern int of_pci_range_parser_init(struct of_pci_range_parser *parser,
 			struct device_node *node);
-- 
cgit 


From 0c3f061c195ceb891067b6de9e4ecc347c4dea31 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Tue, 17 Sep 2013 10:42:50 -0500
Subject: of: implement of_node_to_nid as a weak function

Implement of_node_to_nid as weak function to remove the dependency on
asm/prom.h. This is in preparation to make prom.h optional.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
---
 arch/powerpc/include/asm/prom.h |  7 -------
 arch/sparc/include/asm/prom.h   |  4 ----
 drivers/of/base.c               |  7 +++++++
 include/linux/of.h              | 11 ++++-------
 4 files changed, 11 insertions(+), 18 deletions(-)

diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h
index bd215f74df0f..6707c16d8fc5 100644
--- a/arch/powerpc/include/asm/prom.h
+++ b/arch/powerpc/include/asm/prom.h
@@ -42,13 +42,6 @@ extern void kdump_move_device_tree(void);
 /* cache lookup */
 struct device_node *of_find_next_cache_node(struct device_node *np);
 
-#ifdef CONFIG_NUMA
-extern int of_node_to_nid(struct device_node *device);
-#else
-static inline int of_node_to_nid(struct device_node *device) { return 0; }
-#endif
-#define of_node_to_nid of_node_to_nid
-
 extern void of_instantiate_rtc(void);
 
 extern int of_get_ibm_chip_id(struct device_node *np);
diff --git a/arch/sparc/include/asm/prom.h b/arch/sparc/include/asm/prom.h
index 67c62578d170..60c8d7bd4058 100644
--- a/arch/sparc/include/asm/prom.h
+++ b/arch/sparc/include/asm/prom.h
@@ -43,10 +43,6 @@ extern int of_getintprop_default(struct device_node *np,
 				 const char *name,
 				 int def);
 extern int of_find_in_proplist(const char *list, const char *match, int len);
-#ifdef CONFIG_NUMA
-extern int of_node_to_nid(struct device_node *dp);
-#define of_node_to_nid of_node_to_nid
-#endif
 
 extern void prom_build_devicetree(void);
 extern void of_populate_present_mask(void);
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 865d3f66c86b..ced4c06d79b3 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -74,6 +74,13 @@ int of_n_size_cells(struct device_node *np)
 }
 EXPORT_SYMBOL(of_n_size_cells);
 
+#ifdef CONFIG_NUMA
+int __weak of_node_to_nid(struct device_node *np)
+{
+	return numa_node_id();
+}
+#endif
+
 #if defined(CONFIG_OF_DYNAMIC)
 /**
  *	of_node_get - Increment refcount of a node
diff --git a/include/linux/of.h b/include/linux/of.h
index f95aee391e30..4d294a0b8a57 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -534,13 +534,10 @@ static inline const char *of_prop_next_string(struct property *prop,
 #define of_match_node(_matches, _node)	NULL
 #endif /* CONFIG_OF */
 
-#ifndef of_node_to_nid
-static inline int of_node_to_nid(struct device_node *np)
-{
-	return numa_node_id();
-}
-
-#define of_node_to_nid of_node_to_nid
+#if defined(CONFIG_OF) && defined(CONFIG_NUMA)
+extern int of_node_to_nid(struct device_node *np);
+#else
+static inline int of_node_to_nid(struct device_node *device) { return 0; }
 #endif
 
 /**
-- 
cgit 


From 32df8dca503f82c816f8be85a8d0a394a8b88c2c Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Sat, 7 Sep 2013 14:11:58 -0500
Subject: of: remove HAVE_ARCH_DEVTREE_FIXUPS

HAVE_ARCH_DEVTREE_FIXUPS appears to always be needed except for sparc,
but it is only used for /proc/device-teee and sparc does not enable
/proc/device-tree. So this option is redundant. Remove the option and
always enable it. This has the side effect of fixing /proc/device-tree
on arches such as arm64 which failed to define this option.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: x86@kernel.org
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
---
 arch/arc/include/asm/prom.h        | 2 --
 arch/arm/include/asm/prom.h        | 2 --
 arch/metag/include/asm/prom.h      | 1 -
 arch/microblaze/include/asm/prom.h | 2 --
 arch/openrisc/include/asm/prom.h   | 2 --
 arch/powerpc/include/asm/prom.h    | 2 --
 arch/x86/include/asm/prom.h        | 2 --
 arch/xtensa/include/asm/prom.h     | 2 --
 fs/proc/proc_devtree.c             | 3 ---
 9 files changed, 18 deletions(-)

diff --git a/arch/arc/include/asm/prom.h b/arch/arc/include/asm/prom.h
index 692d0d0789a7..15555499e430 100644
--- a/arch/arc/include/asm/prom.h
+++ b/arch/arc/include/asm/prom.h
@@ -9,6 +9,4 @@
 #ifndef _ASM_ARC_PROM_H_
 #define _ASM_ARC_PROM_H_
 
-#define HAVE_ARCH_DEVTREE_FIXUPS
-
 #endif
diff --git a/arch/arm/include/asm/prom.h b/arch/arm/include/asm/prom.h
index 4a2985e21969..b681575ad3de 100644
--- a/arch/arm/include/asm/prom.h
+++ b/arch/arm/include/asm/prom.h
@@ -11,8 +11,6 @@
 #ifndef __ASMARM_PROM_H
 #define __ASMARM_PROM_H
 
-#define HAVE_ARCH_DEVTREE_FIXUPS
-
 #ifdef CONFIG_OF
 
 extern const struct machine_desc *setup_machine_fdt(unsigned int dt_phys);
diff --git a/arch/metag/include/asm/prom.h b/arch/metag/include/asm/prom.h
index e19022c5a0cb..d4be144a8613 100644
--- a/arch/metag/include/asm/prom.h
+++ b/arch/metag/include/asm/prom.h
@@ -14,7 +14,6 @@
 #ifndef __ASM_METAG_PROM_H
 #define __ASM_METAG_PROM_H
 
-#define HAVE_ARCH_DEVTREE_FIXUPS
 
 extern void copy_fdt(void);
 
diff --git a/arch/microblaze/include/asm/prom.h b/arch/microblaze/include/asm/prom.h
index 0ebd924902df..2f03ac815851 100644
--- a/arch/microblaze/include/asm/prom.h
+++ b/arch/microblaze/include/asm/prom.h
@@ -16,8 +16,6 @@
 
 #include <linux/of.h>
 
-#define HAVE_ARCH_DEVTREE_FIXUPS
-
 /* Other Prototypes */
 enum early_consoles {
 	UARTLITE = 1,
diff --git a/arch/openrisc/include/asm/prom.h b/arch/openrisc/include/asm/prom.h
index 93c9980e1b6b..bec477ba9f7d 100644
--- a/arch/openrisc/include/asm/prom.h
+++ b/arch/openrisc/include/asm/prom.h
@@ -17,6 +17,4 @@
 #ifndef _ASM_OPENRISC_PROM_H
 #define _ASM_OPENRISC_PROM_H
 
-#define HAVE_ARCH_DEVTREE_FIXUPS
-
 #endif /* _ASM_OPENRISC_PROM_H */
diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h
index 6707c16d8fc5..43fe0023d722 100644
--- a/arch/powerpc/include/asm/prom.h
+++ b/arch/powerpc/include/asm/prom.h
@@ -20,8 +20,6 @@
 #include <asm/irq.h>
 #include <linux/atomic.h>
 
-#define HAVE_ARCH_DEVTREE_FIXUPS
-
 /*
  * OF address retreival & translation
  */
diff --git a/arch/x86/include/asm/prom.h b/arch/x86/include/asm/prom.h
index 8ef2ec70858f..fbeb06ed0eaa 100644
--- a/arch/x86/include/asm/prom.h
+++ b/arch/x86/include/asm/prom.h
@@ -39,7 +39,5 @@ static inline void x86_dtb_init(void) { }
 
 extern char cmd_line[COMMAND_LINE_SIZE];
 
-#define HAVE_ARCH_DEVTREE_FIXUPS
-
 #endif /* __ASSEMBLY__ */
 #endif
diff --git a/arch/xtensa/include/asm/prom.h b/arch/xtensa/include/asm/prom.h
index f3d7cd2c0de7..2a87a583b41b 100644
--- a/arch/xtensa/include/asm/prom.h
+++ b/arch/xtensa/include/asm/prom.h
@@ -1,6 +1,4 @@
 #ifndef _XTENSA_ASM_PROM_H
 #define _XTENSA_ASM_PROM_H
 
-#define HAVE_ARCH_DEVTREE_FIXUPS
-
 #endif /* _XTENSA_ASM_PROM_H */
diff --git a/fs/proc/proc_devtree.c b/fs/proc/proc_devtree.c
index 106a83570630..70779b2fc209 100644
--- a/fs/proc/proc_devtree.c
+++ b/fs/proc/proc_devtree.c
@@ -14,16 +14,13 @@
 #include <linux/of.h>
 #include <linux/export.h>
 #include <linux/slab.h>
-#include <asm/prom.h>
 #include <asm/uaccess.h>
 #include "internal.h"
 
 static inline void set_node_proc_entry(struct device_node *np,
 				       struct proc_dir_entry *de)
 {
-#ifdef HAVE_ARCH_DEVTREE_FIXUPS
 	np->pde = de;
-#endif
 }
 
 static struct proc_dir_entry *proc_device_tree;
-- 
cgit 


From 4acf4b9cd4534aaa9102004937e1ba79da01d008 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Mon, 16 Sep 2013 21:03:24 -0500
Subject: of: move of_address_to_resource and of_iomap declarations from sparc

Move of_address_to_resource and of_iomap declarations to common code. These
only differ on sparc, but the declarations are the same and don't need to
be in arch header.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
---
 arch/sparc/include/asm/prom.h |  8 --------
 include/linux/of_address.h    | 30 +++++++++++++++++-------------
 2 files changed, 17 insertions(+), 21 deletions(-)

diff --git a/arch/sparc/include/asm/prom.h b/arch/sparc/include/asm/prom.h
index 60c8d7bd4058..11ebd659e7b6 100644
--- a/arch/sparc/include/asm/prom.h
+++ b/arch/sparc/include/asm/prom.h
@@ -59,13 +59,5 @@ extern char *of_console_options;
 extern void irq_trans_init(struct device_node *dp);
 extern char *build_path_component(struct device_node *dp);
 
-/* SPARC has local implementations */
-extern int of_address_to_resource(struct device_node *dev, int index,
-				  struct resource *r);
-#define of_address_to_resource of_address_to_resource
-
-void __iomem *of_iomap(struct device_node *node, int index);
-#define of_iomap of_iomap
-
 #endif /* __KERNEL__ */
 #endif /* _SPARC_PROM_H */
diff --git a/include/linux/of_address.h b/include/linux/of_address.h
index f6fc6899ceae..e8a179773a1a 100644
--- a/include/linux/of_address.h
+++ b/include/linux/of_address.h
@@ -60,13 +60,6 @@ extern struct of_pci_range *of_pci_range_parser_one(
 					struct of_pci_range_parser *parser,
 					struct of_pci_range *range);
 #else /* CONFIG_OF_ADDRESS */
-#ifndef of_address_to_resource
-static inline int of_address_to_resource(struct device_node *dev, int index,
-					 struct resource *r)
-{
-	return -EINVAL;
-}
-#endif
 static inline struct device_node *of_find_matching_node_by_address(
 					struct device_node *from,
 					const struct of_device_id *matches,
@@ -74,12 +67,7 @@ static inline struct device_node *of_find_matching_node_by_address(
 {
 	return NULL;
 }
-#ifndef of_iomap
-static inline void __iomem *of_iomap(struct device_node *device, int index)
-{
-	return NULL;
-}
-#endif
+
 static inline const __be32 *of_get_address(struct device_node *dev, int index,
 					u64 *size, unsigned int *flags)
 {
@@ -100,6 +88,22 @@ static inline struct of_pci_range *of_pci_range_parser_one(
 }
 #endif /* CONFIG_OF_ADDRESS */
 
+#ifdef CONFIG_OF
+extern int of_address_to_resource(struct device_node *dev, int index,
+				  struct resource *r);
+void __iomem *of_iomap(struct device_node *node, int index);
+#else
+static inline int of_address_to_resource(struct device_node *dev, int index,
+					 struct resource *r)
+{
+	return -EINVAL;
+}
+
+static inline void __iomem *of_iomap(struct device_node *device, int index)
+{
+	return NULL;
+}
+#endif
 
 #if defined(CONFIG_OF_ADDRESS) && defined(CONFIG_PCI)
 extern const __be32 *of_get_pci_address(struct device_node *dev, int bar_no,
-- 
cgit 


From d0dfa16a600190d142f7538e5909d13c35b60d98 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Mon, 16 Sep 2013 21:05:05 -0500
Subject: of: move of_translate_dma_address to of_address.h

of_translate_dma_address is implemented in common code, so move the
declaration there too.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: linuxppc-dev@lists.ozlabs.org
---
 arch/powerpc/include/asm/prom.h | 4 ----
 include/linux/of_address.h      | 4 ++++
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h
index 43fe0023d722..b8774bdc69e0 100644
--- a/arch/powerpc/include/asm/prom.h
+++ b/arch/powerpc/include/asm/prom.h
@@ -24,10 +24,6 @@
  * OF address retreival & translation
  */
 
-/* Translate a DMA address from device space to CPU space */
-extern u64 of_translate_dma_address(struct device_node *dev,
-				    const __be32 *in_addr);
-
 /* Parse the ibm,dma-window property of an OF node into the busno, phys and
  * size parameters.
  */
diff --git a/include/linux/of_address.h b/include/linux/of_address.h
index e8a179773a1a..5f6ed6b182b8 100644
--- a/include/linux/of_address.h
+++ b/include/linux/of_address.h
@@ -34,6 +34,10 @@ static inline void of_pci_range_to_resource(struct of_pci_range *range,
 	res->name = np->full_name;
 }
 
+/* Translate a DMA address from device space to CPU space */
+extern u64 of_translate_dma_address(struct device_node *dev,
+				    const __be32 *in_addr);
+
 #ifdef CONFIG_OF_ADDRESS
 extern u64 of_translate_address(struct device_node *np, const __be32 *addr);
 extern bool of_can_translate_address(struct device_node *dev);
-- 
cgit 


From 5c19c5c6d4f5e1dc0d0e26b683bc820dda01fe06 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Tue, 17 Sep 2013 14:34:00 -0500
Subject: powerpc: clean-up include ordering in prom.h

Now that the core OF headers don't depend on prom.h, rearrange the
includes. There are still lots of implicit includes in the powerpc tree,
so the includes of OF headers are still necessary.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
---
 arch/powerpc/include/asm/prom.h | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h
index b8774bdc69e0..7687f82a3217 100644
--- a/arch/powerpc/include/asm/prom.h
+++ b/arch/powerpc/include/asm/prom.h
@@ -1,4 +1,3 @@
-#include <linux/of.h>	/* linux/of.h gets to determine #include ordering */
 #ifndef _POWERPC_PROM_H
 #define _POWERPC_PROM_H
 #ifdef __KERNEL__
@@ -20,6 +19,13 @@
 #include <asm/irq.h>
 #include <linux/atomic.h>
 
+/* These includes should be removed once implicit includes are cleaned up. */
+#include <linux/of.h>
+#include <linux/of_fdt.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/platform_device.h>
+
 /*
  * OF address retreival & translation
  */
@@ -125,14 +131,5 @@ struct of_drconf_cell {
  */
 extern unsigned char ibm_architecture_vec[];
 
-/* These includes are put at the bottom because they may contain things
- * that are overridden by this file.  Ideally they shouldn't be included
- * by this file, but there are a bunch of .c files that currently depend
- * on it.  Eventually they will be cleaned up. */
-#include <linux/of_fdt.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <linux/platform_device.h>
-
 #endif /* __KERNEL__ */
 #endif /* _POWERPC_PROM_H */
-- 
cgit 


From 26a2056eb21fff26caf99d19ad5448e9403db55d Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Thu, 26 Sep 2013 07:40:04 -0500
Subject: powerpc: add explicit OF includes

When removing prom.h include by of.h, several OF headers will no longer
be implicitly included. Add explicit includes of of_*.h as needed.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Kumar Gala <galak@kernel.crashing.org>
Cc: Olof Johansson <olof@lixom.net>
Cc: linuxppc-dev@lists.ozlabs.org
---
 arch/powerpc/kernel/epapr_paravirt.c             | 1 +
 arch/powerpc/platforms/512x/clock.c              | 1 +
 arch/powerpc/platforms/512x/pdm360ng.c           | 2 ++
 arch/powerpc/platforms/82xx/mpc8272_ads.c        | 2 ++
 arch/powerpc/platforms/82xx/pq2fads.c            | 2 ++
 arch/powerpc/platforms/83xx/suspend.c            | 2 ++
 arch/powerpc/platforms/85xx/c293pcie.c           | 1 +
 arch/powerpc/platforms/85xx/common.c             | 2 ++
 arch/powerpc/platforms/85xx/socrates_fpga_pic.c  | 2 ++
 arch/powerpc/platforms/86xx/pic.c                | 1 +
 arch/powerpc/platforms/8xx/ep88xc.c              | 2 ++
 arch/powerpc/platforms/8xx/mpc86xads_setup.c     | 2 ++
 arch/powerpc/platforms/8xx/mpc885ads_setup.c     | 2 ++
 arch/powerpc/platforms/8xx/tqm8xx_setup.c        | 1 +
 arch/powerpc/platforms/embedded6xx/flipper-pic.c | 1 +
 arch/powerpc/platforms/embedded6xx/hlwd-pic.c    | 2 ++
 arch/powerpc/platforms/pasemi/gpio_mdio.c        | 1 +
 arch/powerpc/platforms/powermac/pfunc_base.c     | 1 +
 arch/powerpc/platforms/powernv/opal-lpc.c        | 1 +
 arch/powerpc/platforms/powernv/opal.c            | 1 +
 arch/powerpc/platforms/powernv/setup.c           | 1 +
 arch/powerpc/platforms/pseries/hotplug-memory.c  | 2 ++
 arch/powerpc/sysdev/cpm_common.c                 | 1 +
 arch/powerpc/sysdev/fsl_gtm.c                    | 2 ++
 arch/powerpc/sysdev/fsl_pmc.c                    | 1 +
 arch/powerpc/sysdev/fsl_rio.c                    | 2 ++
 arch/powerpc/sysdev/fsl_rmu.c                    | 1 +
 arch/powerpc/sysdev/mpic.c                       | 8 ++++----
 arch/powerpc/sysdev/mpic_timer.c                 | 2 ++
 arch/powerpc/sysdev/of_rtc.c                     | 1 +
 arch/powerpc/sysdev/ppc4xx_soc.c                 | 1 +
 arch/powerpc/sysdev/xilinx_intc.c                | 1 +
 32 files changed, 49 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/kernel/epapr_paravirt.c b/arch/powerpc/kernel/epapr_paravirt.c
index 6300c13bbde4..7898be90f2dc 100644
--- a/arch/powerpc/kernel/epapr_paravirt.c
+++ b/arch/powerpc/kernel/epapr_paravirt.c
@@ -18,6 +18,7 @@
  */
 
 #include <linux/of.h>
+#include <linux/of_fdt.h>
 #include <asm/epapr_hcalls.h>
 #include <asm/cacheflush.h>
 #include <asm/code-patching.h>
diff --git a/arch/powerpc/platforms/512x/clock.c b/arch/powerpc/platforms/512x/clock.c
index e504166e089a..fd8a37653417 100644
--- a/arch/powerpc/platforms/512x/clock.c
+++ b/arch/powerpc/platforms/512x/clock.c
@@ -24,6 +24,7 @@
 #include <linux/mutex.h>
 #include <linux/io.h>
 
+#include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <asm/mpc5xxx.h>
 #include <asm/mpc5121.h>
diff --git a/arch/powerpc/platforms/512x/pdm360ng.c b/arch/powerpc/platforms/512x/pdm360ng.c
index 24b314d7bd5f..116f2325b20b 100644
--- a/arch/powerpc/platforms/512x/pdm360ng.c
+++ b/arch/powerpc/platforms/512x/pdm360ng.c
@@ -14,6 +14,8 @@
 
 #include <linux/kernel.h>
 #include <linux/io.h>
+#include <linux/of_address.h>
+#include <linux/of_fdt.h>
 #include <linux/of_platform.h>
 
 #include <asm/machdep.h>
diff --git a/arch/powerpc/platforms/82xx/mpc8272_ads.c b/arch/powerpc/platforms/82xx/mpc8272_ads.c
index 30394b409b3f..6a14cf50f4a2 100644
--- a/arch/powerpc/platforms/82xx/mpc8272_ads.c
+++ b/arch/powerpc/platforms/82xx/mpc8272_ads.c
@@ -16,6 +16,8 @@
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/fsl_devices.h>
+#include <linux/of_address.h>
+#include <linux/of_fdt.h>
 #include <linux/of_platform.h>
 #include <linux/io.h>
 
diff --git a/arch/powerpc/platforms/82xx/pq2fads.c b/arch/powerpc/platforms/82xx/pq2fads.c
index e1dceeec4994..e5f82ec8df17 100644
--- a/arch/powerpc/platforms/82xx/pq2fads.c
+++ b/arch/powerpc/platforms/82xx/pq2fads.c
@@ -15,6 +15,8 @@
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/fsl_devices.h>
+#include <linux/of_address.h>
+#include <linux/of_fdt.h>
 #include <linux/of_platform.h>
 
 #include <asm/io.h>
diff --git a/arch/powerpc/platforms/83xx/suspend.c b/arch/powerpc/platforms/83xx/suspend.c
index 1d769a29249f..3d9716ccd327 100644
--- a/arch/powerpc/platforms/83xx/suspend.c
+++ b/arch/powerpc/platforms/83xx/suspend.c
@@ -20,6 +20,8 @@
 #include <linux/freezer.h>
 #include <linux/suspend.h>
 #include <linux/fsl_devices.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/export.h>
 
diff --git a/arch/powerpc/platforms/85xx/c293pcie.c b/arch/powerpc/platforms/85xx/c293pcie.c
index 6208e49142bf..213d5b815827 100644
--- a/arch/powerpc/platforms/85xx/c293pcie.c
+++ b/arch/powerpc/platforms/85xx/c293pcie.c
@@ -11,6 +11,7 @@
 
 #include <linux/stddef.h>
 #include <linux/kernel.h>
+#include <linux/of_fdt.h>
 #include <linux/of_platform.h>
 
 #include <asm/machdep.h>
diff --git a/arch/powerpc/platforms/85xx/common.c b/arch/powerpc/platforms/85xx/common.c
index d0861a0d8360..eba78c85303f 100644
--- a/arch/powerpc/platforms/85xx/common.c
+++ b/arch/powerpc/platforms/85xx/common.c
@@ -5,6 +5,8 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
+
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 
 #include <sysdev/cpm2_pic.h>
diff --git a/arch/powerpc/platforms/85xx/socrates_fpga_pic.c b/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
index 3bbbf7489487..55a9682b9529 100644
--- a/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
+++ b/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
@@ -9,6 +9,8 @@
  */
 
 #include <linux/irq.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/io.h>
 
diff --git a/arch/powerpc/platforms/86xx/pic.c b/arch/powerpc/platforms/86xx/pic.c
index 9982f57c98b9..d5b98c0f958a 100644
--- a/arch/powerpc/platforms/86xx/pic.c
+++ b/arch/powerpc/platforms/86xx/pic.c
@@ -10,6 +10,7 @@
 #include <linux/stddef.h>
 #include <linux/kernel.h>
 #include <linux/interrupt.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 
 #include <asm/mpic.h>
diff --git a/arch/powerpc/platforms/8xx/ep88xc.c b/arch/powerpc/platforms/8xx/ep88xc.c
index 7d9ac6040d63..e62166681d08 100644
--- a/arch/powerpc/platforms/8xx/ep88xc.c
+++ b/arch/powerpc/platforms/8xx/ep88xc.c
@@ -10,6 +10,8 @@
  */
 
 #include <linux/init.h>
+#include <linux/of_address.h>
+#include <linux/of_fdt.h>
 #include <linux/of_platform.h>
 
 #include <asm/machdep.h>
diff --git a/arch/powerpc/platforms/8xx/mpc86xads_setup.c b/arch/powerpc/platforms/8xx/mpc86xads_setup.c
index 866feff83c91..63084640c5c5 100644
--- a/arch/powerpc/platforms/8xx/mpc86xads_setup.c
+++ b/arch/powerpc/platforms/8xx/mpc86xads_setup.c
@@ -15,6 +15,8 @@
  */
 
 #include <linux/init.h>
+#include <linux/of_address.h>
+#include <linux/of_fdt.h>
 #include <linux/of_platform.h>
 
 #include <asm/io.h>
diff --git a/arch/powerpc/platforms/8xx/mpc885ads_setup.c b/arch/powerpc/platforms/8xx/mpc885ads_setup.c
index 5d98398c2f5e..c1262581b63c 100644
--- a/arch/powerpc/platforms/8xx/mpc885ads_setup.c
+++ b/arch/powerpc/platforms/8xx/mpc885ads_setup.c
@@ -25,6 +25,8 @@
 #include <linux/fs_uart_pd.h>
 #include <linux/fsl_devices.h>
 #include <linux/mii.h>
+#include <linux/of_address.h>
+#include <linux/of_fdt.h>
 #include <linux/of_platform.h>
 
 #include <asm/delay.h>
diff --git a/arch/powerpc/platforms/8xx/tqm8xx_setup.c b/arch/powerpc/platforms/8xx/tqm8xx_setup.c
index 8d21ab70e06c..c9a0d00a98ab 100644
--- a/arch/powerpc/platforms/8xx/tqm8xx_setup.c
+++ b/arch/powerpc/platforms/8xx/tqm8xx_setup.c
@@ -28,6 +28,7 @@
 #include <linux/fs_uart_pd.h>
 #include <linux/fsl_devices.h>
 #include <linux/mii.h>
+#include <linux/of_fdt.h>
 #include <linux/of_platform.h>
 
 #include <asm/delay.h>
diff --git a/arch/powerpc/platforms/embedded6xx/flipper-pic.c b/arch/powerpc/platforms/embedded6xx/flipper-pic.c
index 53d6eee01963..4cde8e7da4b8 100644
--- a/arch/powerpc/platforms/embedded6xx/flipper-pic.c
+++ b/arch/powerpc/platforms/embedded6xx/flipper-pic.c
@@ -18,6 +18,7 @@
 #include <linux/init.h>
 #include <linux/irq.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <asm/io.h>
 
 #include "flipper-pic.h"
diff --git a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
index 3006b5117ec6..7cab21ded9d0 100644
--- a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
+++ b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
@@ -18,6 +18,8 @@
 #include <linux/init.h>
 #include <linux/irq.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <asm/io.h>
 
 #include "hlwd-pic.h"
diff --git a/arch/powerpc/platforms/pasemi/gpio_mdio.c b/arch/powerpc/platforms/pasemi/gpio_mdio.c
index 0237ab782fb8..15adee544638 100644
--- a/arch/powerpc/platforms/pasemi/gpio_mdio.c
+++ b/arch/powerpc/platforms/pasemi/gpio_mdio.c
@@ -30,6 +30,7 @@
 #include <linux/ioport.h>
 #include <linux/interrupt.h>
 #include <linux/phy.h>
+#include <linux/of_address.h>
 #include <linux/of_mdio.h>
 #include <linux/of_platform.h>
 
diff --git a/arch/powerpc/platforms/powermac/pfunc_base.c b/arch/powerpc/platforms/powermac/pfunc_base.c
index f5e3cda6660e..e49d07f3d542 100644
--- a/arch/powerpc/platforms/powermac/pfunc_base.c
+++ b/arch/powerpc/platforms/powermac/pfunc_base.c
@@ -4,6 +4,7 @@
 #include <linux/kernel.h>
 #include <linux/interrupt.h>
 #include <linux/spinlock.h>
+#include <linux/of_irq.h>
 
 #include <asm/pmac_feature.h>
 #include <asm/pmac_pfunc.h>
diff --git a/arch/powerpc/platforms/powernv/opal-lpc.c b/arch/powerpc/platforms/powernv/opal-lpc.c
index a7614bb14e17..e7e59e4f9892 100644
--- a/arch/powerpc/platforms/powernv/opal-lpc.c
+++ b/arch/powerpc/platforms/powernv/opal-lpc.c
@@ -17,6 +17,7 @@
 #include <asm/firmware.h>
 #include <asm/xics.h>
 #include <asm/opal.h>
+#include <asm/prom.h>
 
 static int opal_lpc_chip_id = -1;
 
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 2911abe550f1..f36ff3518c07 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -13,6 +13,7 @@
 
 #include <linux/types.h>
 #include <linux/of.h>
+#include <linux/of_fdt.h>
 #include <linux/of_platform.h>
 #include <linux/interrupt.h>
 #include <linux/notifier.h>
diff --git a/arch/powerpc/platforms/powernv/setup.c b/arch/powerpc/platforms/powernv/setup.c
index e239dcfa224c..19884b2a51b4 100644
--- a/arch/powerpc/platforms/powernv/setup.c
+++ b/arch/powerpc/platforms/powernv/setup.c
@@ -23,6 +23,7 @@
 #include <linux/irq.h>
 #include <linux/seq_file.h>
 #include <linux/of.h>
+#include <linux/of_fdt.h>
 #include <linux/interrupt.h>
 #include <linux/bug.h>
 
diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
index 9a432de363b8..9590dbb756f2 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -10,12 +10,14 @@
  */
 
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <linux/memblock.h>
 #include <linux/vmalloc.h>
 #include <linux/memory.h>
 
 #include <asm/firmware.h>
 #include <asm/machdep.h>
+#include <asm/prom.h>
 #include <asm/sparsemem.h>
 
 static unsigned long get_memblock_size(void)
diff --git a/arch/powerpc/sysdev/cpm_common.c b/arch/powerpc/sysdev/cpm_common.c
index 4dd534194ae8..4f7869571290 100644
--- a/arch/powerpc/sysdev/cpm_common.c
+++ b/arch/powerpc/sysdev/cpm_common.c
@@ -22,6 +22,7 @@
 #include <linux/spinlock.h>
 #include <linux/export.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <linux/slab.h>
 
 #include <asm/udbg.h>
diff --git a/arch/powerpc/sysdev/fsl_gtm.c b/arch/powerpc/sysdev/fsl_gtm.c
index 0eb871cc3437..1b980eed235a 100644
--- a/arch/powerpc/sysdev/fsl_gtm.c
+++ b/arch/powerpc/sysdev/fsl_gtm.c
@@ -19,6 +19,8 @@
 #include <linux/list.h>
 #include <linux/io.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/spinlock.h>
 #include <linux/bitops.h>
 #include <linux/slab.h>
diff --git a/arch/powerpc/sysdev/fsl_pmc.c b/arch/powerpc/sysdev/fsl_pmc.c
index 592a0f8d527a..8cf4aa0e3a25 100644
--- a/arch/powerpc/sysdev/fsl_pmc.c
+++ b/arch/powerpc/sysdev/fsl_pmc.c
@@ -18,6 +18,7 @@
 #include <linux/suspend.h>
 #include <linux/delay.h>
 #include <linux/device.h>
+#include <linux/of_address.h>
 #include <linux/of_platform.h>
 
 struct pmc_regs {
diff --git a/arch/powerpc/sysdev/fsl_rio.c b/arch/powerpc/sysdev/fsl_rio.c
index e2fb3171f41b..95dd892e9904 100644
--- a/arch/powerpc/sysdev/fsl_rio.c
+++ b/arch/powerpc/sysdev/fsl_rio.c
@@ -28,6 +28,8 @@
 #include <linux/dma-mapping.h>
 #include <linux/interrupt.h>
 #include <linux/device.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
diff --git a/arch/powerpc/sysdev/fsl_rmu.c b/arch/powerpc/sysdev/fsl_rmu.c
index 14bd5221f28a..00e224a1048c 100644
--- a/arch/powerpc/sysdev/fsl_rmu.c
+++ b/arch/powerpc/sysdev/fsl_rmu.c
@@ -27,6 +27,7 @@
 #include <linux/types.h>
 #include <linux/dma-mapping.h>
 #include <linux/interrupt.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/slab.h>
 
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 1be54faf60dd..2d30eafc40d8 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -535,7 +535,7 @@ static void __init mpic_scan_ht_pic(struct mpic *mpic, u8 __iomem *devbase,
 		mpic->fixups[irq].data = readl(base + 4) | 0x80000000;
 	}
 }
- 
+
 
 static void __init mpic_scan_ht_pics(struct mpic *mpic)
 {
@@ -1475,7 +1475,7 @@ struct mpic * __init mpic_alloc(struct device_node *node,
 	 * as a default instead of the value read from the HW.
 	 */
 	last_irq = (greg_feature & MPIC_GREG_FEATURE_LAST_SRC_MASK)
-				>> MPIC_GREG_FEATURE_LAST_SRC_SHIFT;	
+				>> MPIC_GREG_FEATURE_LAST_SRC_SHIFT;
 	if (isu_size)
 		last_irq = isu_size  * MPIC_MAX_ISU - 1;
 	of_property_read_u32(mpic->node, "last-interrupt-source", &last_irq);
@@ -1625,7 +1625,7 @@ void __init mpic_init(struct mpic *mpic)
 			/* start with vector = source number, and masked */
 			u32 vecpri = MPIC_VECPRI_MASK | i |
 				(8 << MPIC_VECPRI_PRIORITY_SHIFT);
-		
+
 			/* check if protected */
 			if (mpic->protected && test_bit(i, mpic->protected))
 				continue;
@@ -1634,7 +1634,7 @@ void __init mpic_init(struct mpic *mpic)
 			mpic_irq_write(i, MPIC_INFO(IRQ_DESTINATION), 1 << cpu);
 		}
 	}
-	
+
 	/* Init spurious vector */
 	mpic_write(mpic->gregs, MPIC_INFO(GREG_SPURIOUS), mpic->spurious_vec);
 
diff --git a/arch/powerpc/sysdev/mpic_timer.c b/arch/powerpc/sysdev/mpic_timer.c
index c06db92a4fb1..22d7d57eead9 100644
--- a/arch/powerpc/sysdev/mpic_timer.c
+++ b/arch/powerpc/sysdev/mpic_timer.c
@@ -19,7 +19,9 @@
 #include <linux/interrupt.h>
 #include <linux/slab.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <linux/of_device.h>
+#include <linux/of_irq.h>
 #include <linux/syscore_ops.h>
 #include <sysdev/fsl_soc.h>
 #include <asm/io.h>
diff --git a/arch/powerpc/sysdev/of_rtc.c b/arch/powerpc/sysdev/of_rtc.c
index c9e803f3e267..6f54b54b1328 100644
--- a/arch/powerpc/sysdev/of_rtc.c
+++ b/arch/powerpc/sysdev/of_rtc.c
@@ -11,6 +11,7 @@
 #include <linux/kernel.h>
 #include <linux/of.h>
 #include <linux/init.h>
+#include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/slab.h>
 
diff --git a/arch/powerpc/sysdev/ppc4xx_soc.c b/arch/powerpc/sysdev/ppc4xx_soc.c
index 0debcc31ad70..5c77c9ba33aa 100644
--- a/arch/powerpc/sysdev/ppc4xx_soc.c
+++ b/arch/powerpc/sysdev/ppc4xx_soc.c
@@ -19,6 +19,7 @@
 #include <linux/errno.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 
 #include <asm/dcr.h>
diff --git a/arch/powerpc/sysdev/xilinx_intc.c b/arch/powerpc/sysdev/xilinx_intc.c
index 8d73c3c0bee6..f4fdc94ad2c0 100644
--- a/arch/powerpc/sysdev/xilinx_intc.c
+++ b/arch/powerpc/sysdev/xilinx_intc.c
@@ -23,6 +23,7 @@
 #include <linux/kernel.h>
 #include <linux/irq.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <asm/io.h>
 #include <asm/processor.h>
 #include <asm/i8259.h>
-- 
cgit 


From b5b4bb3f6a11f9c37b6d53138244f2ffe5bacd12 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Sat, 7 Sep 2013 14:08:20 -0500
Subject: of: only include prom.h on sparc

The dependency on prom.h by the core DT code is now removed and only
sparc needs to include prom.h for the core code.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
---
 include/linux/of.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/of.h b/include/linux/of.h
index 4d294a0b8a57..54017b83650b 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -136,7 +136,9 @@ static inline unsigned long of_read_ulong(const __be32 *cell, int size)
 	return of_read_number(cell, size);
 }
 
+#if defined(CONFIG_SPARC)
 #include <asm/prom.h>
+#endif
 
 /* Default #address and #size cells.  Allow arch asm/prom.h to override */
 #if !defined(OF_ROOT_NODE_ADDR_CELLS_DEFAULT)
-- 
cgit 


From 5116b1defad7cec648384c2d1bc0b7460d305c93 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Sat, 7 Sep 2013 14:33:54 -0500
Subject: of: remove empty arch prom.h headers

Now that prom.h is optional, all the empty prom.h headers can be removed.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
---
 arch/arc/include/asm/prom.h      | 12 ------------
 arch/arm64/include/asm/prom.h    |  1 -
 arch/c6x/include/asm/prom.h      |  1 -
 arch/metag/include/asm/prom.h    | 20 --------------------
 arch/openrisc/include/asm/prom.h | 20 --------------------
 arch/xtensa/include/asm/prom.h   |  4 ----
 6 files changed, 58 deletions(-)
 delete mode 100644 arch/arc/include/asm/prom.h
 delete mode 100644 arch/arm64/include/asm/prom.h
 delete mode 100644 arch/c6x/include/asm/prom.h
 delete mode 100644 arch/metag/include/asm/prom.h
 delete mode 100644 arch/openrisc/include/asm/prom.h
 delete mode 100644 arch/xtensa/include/asm/prom.h

diff --git a/arch/arc/include/asm/prom.h b/arch/arc/include/asm/prom.h
deleted file mode 100644
index 15555499e430..000000000000
--- a/arch/arc/include/asm/prom.h
+++ /dev/null
@@ -1,12 +0,0 @@
-/*
- * Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef _ASM_ARC_PROM_H_
-#define _ASM_ARC_PROM_H_
-
-#endif
diff --git a/arch/arm64/include/asm/prom.h b/arch/arm64/include/asm/prom.h
deleted file mode 100644
index 68b90e682957..000000000000
--- a/arch/arm64/include/asm/prom.h
+++ /dev/null
@@ -1 +0,0 @@
-/* Empty for now */
diff --git a/arch/c6x/include/asm/prom.h b/arch/c6x/include/asm/prom.h
deleted file mode 100644
index b4ec95f07518..000000000000
--- a/arch/c6x/include/asm/prom.h
+++ /dev/null
@@ -1 +0,0 @@
-/* dummy prom.h; here to make linux/of.h's #includes happy */
diff --git a/arch/metag/include/asm/prom.h b/arch/metag/include/asm/prom.h
deleted file mode 100644
index d4be144a8613..000000000000
--- a/arch/metag/include/asm/prom.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- *  arch/metag/include/asm/prom.h
- *
- *  Copyright (C) 2012 Imagination Technologies Ltd.
- *
- *  Based on ARM version:
- *  Copyright (C) 2009 Canonical Ltd. <jeremy.kerr@canonical.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-#ifndef __ASM_METAG_PROM_H
-#define __ASM_METAG_PROM_H
-
-
-extern void copy_fdt(void);
-
-#endif /* __ASM_METAG_PROM_H */
diff --git a/arch/openrisc/include/asm/prom.h b/arch/openrisc/include/asm/prom.h
deleted file mode 100644
index bec477ba9f7d..000000000000
--- a/arch/openrisc/include/asm/prom.h
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * OpenRISC Linux
- *
- * Linux architectural port borrowing liberally from similar works of
- * others.  All original copyrights apply as per the original source
- * declaration.
- *
- * OpenRISC implementation:
- * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se>
- * et al.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-#ifndef _ASM_OPENRISC_PROM_H
-#define _ASM_OPENRISC_PROM_H
-
-#endif /* _ASM_OPENRISC_PROM_H */
diff --git a/arch/xtensa/include/asm/prom.h b/arch/xtensa/include/asm/prom.h
deleted file mode 100644
index 2a87a583b41b..000000000000
--- a/arch/xtensa/include/asm/prom.h
+++ /dev/null
@@ -1,4 +0,0 @@
-#ifndef _XTENSA_ASM_PROM_H
-#define _XTENSA_ASM_PROM_H
-
-#endif /* _XTENSA_ASM_PROM_H */
-- 
cgit 


From b9be6d026d327593784b042aab4fa27e2de9c825 Mon Sep 17 00:00:00 2001
From: Wang YanQing <udknight@gmail.com>
Date: Sat, 14 Sep 2013 12:59:16 +0800
Subject: tracing: Show more exact help information about snapshot

The current "help" that comes out of the snapshot file when it is
not allocated looks like this:

 # * Snapshot is freed *
 #
 # Snapshot commands:
 # echo 0 > snapshot : Clears and frees snapshot buffer
 # echo 1 > snapshot : Allocates snapshot buffer, if not already allocated.
 #                      Takes a snapshot of the main buffer.
 # echo 2 > snapshot : Clears snapshot buffer (but does not allocate)
 #                      (Doesn't have to be '2' works with any number that
 #                       is not a '0' or '1')

Echo 2 says that it does not allocate the buffer, which is correct,
but to be more consistent with "echo 0" it should also state
that it does not free.

Link: http://lkml.kernel.org/r/20130914045916.GA4243@udknight

Signed-off-by: Wang YanQing <udknight@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/trace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 7974ba20557d..d5f7c4d84bcd 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -2760,7 +2760,7 @@ static void show_snapshot_main_help(struct seq_file *m)
 	seq_printf(m, "# echo 0 > snapshot : Clears and frees snapshot buffer\n");
 	seq_printf(m, "# echo 1 > snapshot : Allocates snapshot buffer, if not already allocated.\n");
 	seq_printf(m, "#                      Takes a snapshot of the main buffer.\n");
-	seq_printf(m, "# echo 2 > snapshot : Clears snapshot buffer (but does not allocate)\n");
+	seq_printf(m, "# echo 2 > snapshot : Clears snapshot buffer (but does not allocate or free)\n");
 	seq_printf(m, "#                      (Doesn't have to be '2' works with any number that\n");
 	seq_printf(m, "#                       is not a '0' or '1')\n");
 }
-- 
cgit 


From 6d779b41f715ce7cd0f3ddbf809a3b8aaff72115 Mon Sep 17 00:00:00 2001
From: Anjali Singhai <anjali.singhai@intel.com>
Date: Sat, 28 Sep 2013 06:00:02 +0000
Subject: i40e: Link code updates

Link events should not print to the log until the device is
administratively up.

Signed-off-by: Anjali Singhai <anjali.singhai@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 221aa4795017..657babe82c9c 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -3703,8 +3703,11 @@ static int i40e_up_complete(struct i40e_vsi *vsi)
 
 	if ((pf->hw.phy.link_info.link_info & I40E_AQ_LINK_UP) &&
 	    (vsi->netdev)) {
+		netdev_info(vsi->netdev, "NIC Link is Up\n");
 		netif_tx_start_all_queues(vsi->netdev);
 		netif_carrier_on(vsi->netdev);
+	} else if (vsi->netdev) {
+		netdev_info(vsi->netdev, "NIC Link is Down\n");
 	}
 	i40e_service_event_schedule(pf);
 
@@ -4153,8 +4156,9 @@ static void i40e_link_event(struct i40e_pf *pf)
 	if (new_link == old_link)
 		return;
 
-	netdev_info(pf->vsi[pf->lan_vsi]->netdev,
-		    "NIC Link is %s\n", (new_link ? "Up" : "Down"));
+	if (!test_bit(__I40E_DOWN, &pf->vsi[pf->lan_vsi]->state))
+		netdev_info(pf->vsi[pf->lan_vsi]->netdev,
+			    "NIC Link is %s\n", (new_link ? "Up" : "Down"));
 
 	/* Notify the base of the switch tree connected to
 	 * the link.  Floating VEBs are not notified.
-- 
cgit 


From c304fdac6cc0aab1f01e0f2b32c881d908a57a84 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Sat, 28 Sep 2013 06:00:12 +0000
Subject: i40e: Drop unused completed stat

The Tx "completed" stat was part of the original rewrite for detecting
Tx hangs.  However some time ago in ixgbe I determined that we could
just use the packets stat instead.  Since then this stat was
removed from ixgbe and it serves no purpose in i40e so it can be
dropped.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 3 +--
 drivers/net/ethernet/intel/i40e/i40e_txrx.c    | 3 +--
 drivers/net/ethernet/intel/i40e/i40e_txrx.h    | 1 -
 3 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 8dbd91f64b74..0b01c61f70c2 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -560,10 +560,9 @@ static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
 				 vsi->tx_rings[i].tx_stats.bytes,
 				 vsi->tx_rings[i].tx_stats.restart_queue);
 			dev_info(&pf->pdev->dev,
-				 "    tx_rings[%i]: tx_stats: tx_busy = %lld, completed = %lld, tx_done_old = %lld\n",
+				 "    tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
 				 i,
 				 vsi->tx_rings[i].tx_stats.tx_busy,
-				 vsi->tx_rings[i].tx_stats.completed,
 				 vsi->tx_rings[i].tx_stats.tx_done_old);
 			dev_info(&pf->pdev->dev,
 				 "    tx_rings[%i]: size = %i, dma = 0x%08lx\n",
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 49d2cfa9b0cc..32c9aebcb575 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -346,8 +346,7 @@ static bool i40e_clean_tx_irq(struct i40e_ring *tx_ring, int budget)
 		      cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE)))
 			break;
 
-		/* count the packet as being completed */
-		tx_ring->tx_stats.completed++;
+		/* clear next_to_watch to prevent false hangs */
 		tx_buf->next_to_watch = NULL;
 		tx_buf->time_stamp = 0;
 
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
index b1d7722d98a7..2fbacaff0445 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
@@ -134,7 +134,6 @@ struct i40e_tx_queue_stats {
 	u64 bytes;
 	u64 restart_queue;
 	u64 tx_busy;
-	u64 completed;
 	u64 tx_done_old;
 };
 
-- 
cgit 


From 5c70ef85a2f26d8a0e1aaa7b4cbfff44fda36585 Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Fri, 4 Oct 2013 16:52:24 +0800
Subject: veth: allow to setup multicast address for veth device

We can only setup multicast address for network device when
net_device_ops->ndo_set_rx_mode is not null.

Some configurations need to add multicast address for net
device, such as netfilter cluster match module.

Add a fake ndo_set_rx_mode function to allow this operation.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/veth.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index eee1f19ef1e9..b2d034791e15 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -188,6 +188,11 @@ static struct rtnl_link_stats64 *veth_get_stats64(struct net_device *dev,
 	return tot;
 }
 
+/* fake multicast ability */
+static void veth_set_multicast_list(struct net_device *dev)
+{
+}
+
 static int veth_open(struct net_device *dev)
 {
 	struct veth_priv *priv = netdev_priv(dev);
@@ -250,6 +255,7 @@ static const struct net_device_ops veth_netdev_ops = {
 	.ndo_start_xmit      = veth_xmit,
 	.ndo_change_mtu      = veth_change_mtu,
 	.ndo_get_stats64     = veth_get_stats64,
+	.ndo_set_rx_mode     = veth_set_multicast_list,
 	.ndo_set_mac_address = eth_mac_addr,
 };
 
-- 
cgit 


From 4c60f1d67fae632743df9324301e3cb2682f54d4 Mon Sep 17 00:00:00 2001
From: "baker.zhang" <baker.kernel@gmail.com>
Date: Tue, 8 Oct 2013 11:36:51 +0800
Subject: fib_trie: only calc for the un-first node

This is a enhancement.

for the first node in fib_trie, newpos is 0, bit is 1.
Only for the leaf or node with unmatched key need calc pos.

Signed-off-by: baker.zhang <baker.kernel@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/fib_trie.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 45c74ba03970..ec9a9ef4ce50 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -1117,12 +1117,8 @@ static struct list_head *fib_insert_node(struct trie *t, u32 key, int plen)
 		 *  first tnode need some special handling
 		 */
 
-		if (tp)
-			pos = tp->pos+tp->bits;
-		else
-			pos = 0;
-
 		if (n) {
+			pos = tp ? tp->pos+tp->bits : 0;
 			newpos = tkey_mismatch(key, pos, n->key);
 			tn = tnode_new(n->key, newpos, 1);
 		} else {
-- 
cgit 


From 8a29111c7ca68d928dfab58636f3f6acf0ac04f7 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Tue, 8 Oct 2013 09:02:23 -0700
Subject: net: gro: allow to build full sized skb

skb_gro_receive() is currently limited to 16 or 17 MSS per GRO skb,
typically 24616 bytes, because it fills up to MAX_SKB_FRAGS frags.

It's relatively easy to extend the skb using frag_list to allow
more frags to be appended into the last sk_buff.

This still builds very efficient skbs, and allows reaching 45 MSS per
skb.

(45 MSS GRO packet uses one skb plus a frag_list containing 2 additional
sk_buff)

High speed TCP flows benefit from this extension by lowering TCP stack
cpu usage (less packets stored in receive queue, less ACK packets
processed)

Forwarding setups could be hurt, as such skbs will need to be
linearized, although its not a new problem, as GRO could already
provide skbs with a frag_list.

We could make the 65536 bytes threshold a tunable to mitigate this.

(First time we need to linearize skb in skb_needs_linearize(), we could
lower the tunable to ~16*1460 so that following skb_gro_receive() calls
build smaller skbs)

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/skbuff.c | 43 ++++++++++++++++++++++++++-----------------
 1 file changed, 26 insertions(+), 17 deletions(-)

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index d81cff119f73..8ead744fcc94 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2936,32 +2936,30 @@ EXPORT_SYMBOL_GPL(skb_segment);
 
 int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 {
-	struct sk_buff *p = *head;
-	struct sk_buff *nskb;
-	struct skb_shared_info *skbinfo = skb_shinfo(skb);
-	struct skb_shared_info *pinfo = skb_shinfo(p);
-	unsigned int headroom;
-	unsigned int len = skb_gro_len(skb);
+	struct skb_shared_info *pinfo, *skbinfo = skb_shinfo(skb);
 	unsigned int offset = skb_gro_offset(skb);
 	unsigned int headlen = skb_headlen(skb);
+	struct sk_buff *nskb, *lp, *p = *head;
+	unsigned int len = skb_gro_len(skb);
 	unsigned int delta_truesize;
+	unsigned int headroom;
 
-	if (p->len + len >= 65536)
+	if (unlikely(p->len + len >= 65536))
 		return -E2BIG;
 
-	if (pinfo->frag_list)
-		goto merge;
-	else if (headlen <= offset) {
+	lp = NAPI_GRO_CB(p)->last ?: p;
+	pinfo = skb_shinfo(lp);
+
+	if (headlen <= offset) {
 		skb_frag_t *frag;
 		skb_frag_t *frag2;
 		int i = skbinfo->nr_frags;
 		int nr_frags = pinfo->nr_frags + i;
 
-		offset -= headlen;
-
 		if (nr_frags > MAX_SKB_FRAGS)
-			return -E2BIG;
+			goto merge;
 
+		offset -= headlen;
 		pinfo->nr_frags = nr_frags;
 		skbinfo->nr_frags = 0;
 
@@ -2992,7 +2990,7 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 		unsigned int first_offset;
 
 		if (nr_frags + 1 + skbinfo->nr_frags > MAX_SKB_FRAGS)
-			return -E2BIG;
+			goto merge;
 
 		first_offset = skb->data -
 			       (unsigned char *)page_address(page) +
@@ -3010,7 +3008,10 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 		delta_truesize = skb->truesize - SKB_DATA_ALIGN(sizeof(struct sk_buff));
 		NAPI_GRO_CB(skb)->free = NAPI_GRO_FREE_STOLEN_HEAD;
 		goto done;
-	} else if (skb_gro_len(p) != pinfo->gso_size)
+	}
+	if (pinfo->frag_list)
+		goto merge;
+	if (skb_gro_len(p) != pinfo->gso_size)
 		return -E2BIG;
 
 	headroom = skb_headroom(p);
@@ -3062,16 +3063,24 @@ merge:
 
 	__skb_pull(skb, offset);
 
-	NAPI_GRO_CB(p)->last->next = skb;
+	if (!NAPI_GRO_CB(p)->last)
+		skb_shinfo(p)->frag_list = skb;
+	else
+		NAPI_GRO_CB(p)->last->next = skb;
 	NAPI_GRO_CB(p)->last = skb;
 	skb_header_release(skb);
+	lp = p;
 
 done:
 	NAPI_GRO_CB(p)->count++;
 	p->data_len += len;
 	p->truesize += delta_truesize;
 	p->len += len;
-
+	if (lp != p) {
+		lp->data_len += len;
+		lp->truesize += delta_truesize;
+		lp->len += len;
+	}
 	NAPI_GRO_CB(skb)->same_flow = 1;
 	return 0;
 }
-- 
cgit 


From 634fb979e8f3a70f04c1f2f519d0cd1142eb5c1a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 9 Oct 2013 15:21:29 -0700
Subject: inet: includes a sock_common in request_sock

TCP listener refactoring, part 5 :

We want to be able to insert request sockets (SYN_RECV) into main
ehash table instead of the per listener hash table to allow RCU
lookups and remove listener lock contention.

This patch includes the needed struct sock_common in front
of struct request_sock

This means there is no more inet6_request_sock IPv6 specific
structure.

Following inet_request_sock fields were renamed as they became
macros to reference fields from struct sock_common.
Prefix ir_ was chosen to avoid name collisions.

loc_port   -> ir_loc_port
loc_addr   -> ir_loc_addr
rmt_addr   -> ir_rmt_addr
rmt_port   -> ir_rmt_port
iif        -> ir_iif

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/ipv6.h             | 26 ++---------------
 include/net/inet_sock.h          | 16 +++++-----
 include/net/request_sock.h       |  1 +
 include/net/tcp.h                |  4 +--
 net/dccp/ipv4.c                  | 18 ++++++------
 net/dccp/ipv6.c                  | 63 ++++++++++++++++++++--------------------
 net/dccp/ipv6.h                  |  1 -
 net/dccp/minisocks.c             |  4 +--
 net/dccp/output.c                |  4 +--
 net/ipv4/inet_connection_sock.c  | 23 ++++++++-------
 net/ipv4/inet_diag.c             | 22 +++++++-------
 net/ipv4/syncookies.c            | 12 ++++----
 net/ipv4/tcp_ipv4.c              | 38 ++++++++++++------------
 net/ipv4/tcp_metrics.c           |  8 +++--
 net/ipv4/tcp_output.c            |  4 +--
 net/ipv6/inet6_connection_sock.c | 26 ++++++++---------
 net/ipv6/syncookies.c            | 24 +++++++--------
 net/ipv6/tcp_ipv6.c              | 61 +++++++++++++++++++-------------------
 net/netlabel/netlabel_kapi.c     |  2 +-
 19 files changed, 169 insertions(+), 188 deletions(-)

diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index 35f6c1b562c4..a80a63cfb70c 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -115,16 +115,8 @@ static inline int inet6_iif(const struct sk_buff *skb)
 	return IP6CB(skb)->iif;
 }
 
-struct inet6_request_sock {
-	struct in6_addr		loc_addr;
-	struct in6_addr		rmt_addr;
-	struct sk_buff		*pktopts;
-	int			iif;
-};
-
 struct tcp6_request_sock {
 	struct tcp_request_sock	  tcp6rsk_tcp;
-	struct inet6_request_sock tcp6rsk_inet6;
 };
 
 struct ipv6_mc_socklist;
@@ -264,26 +256,12 @@ static inline struct ipv6_pinfo * inet6_sk(const struct sock *__sk)
 	return inet_sk(__sk)->pinet6;
 }
 
-static inline struct inet6_request_sock *
-			inet6_rsk(const struct request_sock *rsk)
-{
-	return (struct inet6_request_sock *)(((u8 *)rsk) +
-					     inet_rsk(rsk)->inet6_rsk_offset);
-}
-
-static inline u32 inet6_rsk_offset(struct request_sock *rsk)
-{
-	return rsk->rsk_ops->obj_size - sizeof(struct inet6_request_sock);
-}
-
 static inline struct request_sock *inet6_reqsk_alloc(struct request_sock_ops *ops)
 {
 	struct request_sock *req = reqsk_alloc(ops);
 
-	if (req != NULL) {
-		inet_rsk(req)->inet6_rsk_offset = inet6_rsk_offset(req);
-		inet6_rsk(req)->pktopts = NULL;
-	}
+	if (req)
+		inet_rsk(req)->pktopts = NULL;
 
 	return req;
 }
diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index 6d9a7e6eb5a4..f91204442efa 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -70,13 +70,14 @@ struct ip_options_data {
 
 struct inet_request_sock {
 	struct request_sock	req;
-#if IS_ENABLED(CONFIG_IPV6)
-	u16			inet6_rsk_offset;
-#endif
-	__be16			loc_port;
-	__be32			loc_addr;
-	__be32			rmt_addr;
-	__be16			rmt_port;
+#define ir_loc_addr		req.__req_common.skc_rcv_saddr
+#define ir_rmt_addr		req.__req_common.skc_daddr
+#define ir_loc_port		req.__req_common.skc_num
+#define ir_rmt_port		req.__req_common.skc_dport
+#define ir_v6_rmt_addr		req.__req_common.skc_v6_daddr
+#define ir_v6_loc_addr		req.__req_common.skc_v6_rcv_saddr
+#define ir_iif			req.__req_common.skc_bound_dev_if
+
 	kmemcheck_bitfield_begin(flags);
 	u16			snd_wscale : 4,
 				rcv_wscale : 4,
@@ -88,6 +89,7 @@ struct inet_request_sock {
 				no_srccheck: 1;
 	kmemcheck_bitfield_end(flags);
 	struct ip_options_rcu	*opt;
+	struct sk_buff		*pktopts;
 };
 
 static inline struct inet_request_sock *inet_rsk(const struct request_sock *sk)
diff --git a/include/net/request_sock.h b/include/net/request_sock.h
index 65c3e5164a5c..7f830ff67f08 100644
--- a/include/net/request_sock.h
+++ b/include/net/request_sock.h
@@ -48,6 +48,7 @@ int inet_rtx_syn_ack(struct sock *parent, struct request_sock *req);
 /* struct request_sock - mini sock to represent a connection request
  */
 struct request_sock {
+	struct sock_common		__req_common;
 	struct request_sock		*dl_next;
 	u16				mss;
 	u8				num_retrans; /* number of retransmits */
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 39bbfa1602b2..24a06161d174 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1109,8 +1109,8 @@ static inline void tcp_openreq_init(struct request_sock *req,
 	ireq->wscale_ok = rx_opt->wscale_ok;
 	ireq->acked = 0;
 	ireq->ecn_ok = 0;
-	ireq->rmt_port = tcp_hdr(skb)->source;
-	ireq->loc_port = tcp_hdr(skb)->dest;
+	ireq->ir_rmt_port = tcp_hdr(skb)->source;
+	ireq->ir_loc_port = tcp_hdr(skb)->dest;
 }
 
 void tcp_enter_memory_pressure(struct sock *sk);
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index ebc54fef85a5..720c36225ed9 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -409,9 +409,9 @@ struct sock *dccp_v4_request_recv_sock(struct sock *sk, struct sk_buff *skb,
 
 	newinet		   = inet_sk(newsk);
 	ireq		   = inet_rsk(req);
-	newinet->inet_daddr	= ireq->rmt_addr;
-	newinet->inet_rcv_saddr = ireq->loc_addr;
-	newinet->inet_saddr	= ireq->loc_addr;
+	newinet->inet_daddr	= ireq->ir_rmt_addr;
+	newinet->inet_rcv_saddr = ireq->ir_loc_addr;
+	newinet->inet_saddr	= ireq->ir_loc_addr;
 	newinet->inet_opt	= ireq->opt;
 	ireq->opt	   = NULL;
 	newinet->mc_index  = inet_iif(skb);
@@ -516,10 +516,10 @@ static int dccp_v4_send_response(struct sock *sk, struct request_sock *req)
 		const struct inet_request_sock *ireq = inet_rsk(req);
 		struct dccp_hdr *dh = dccp_hdr(skb);
 
-		dh->dccph_checksum = dccp_v4_csum_finish(skb, ireq->loc_addr,
-							      ireq->rmt_addr);
-		err = ip_build_and_send_pkt(skb, sk, ireq->loc_addr,
-					    ireq->rmt_addr,
+		dh->dccph_checksum = dccp_v4_csum_finish(skb, ireq->ir_loc_addr,
+							      ireq->ir_rmt_addr);
+		err = ip_build_and_send_pkt(skb, sk, ireq->ir_loc_addr,
+					    ireq->ir_rmt_addr,
 					    ireq->opt);
 		err = net_xmit_eval(err);
 	}
@@ -641,8 +641,8 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 		goto drop_and_free;
 
 	ireq = inet_rsk(req);
-	ireq->loc_addr = ip_hdr(skb)->daddr;
-	ireq->rmt_addr = ip_hdr(skb)->saddr;
+	ireq->ir_loc_addr = ip_hdr(skb)->daddr;
+	ireq->ir_rmt_addr = ip_hdr(skb)->saddr;
 
 	/*
 	 * Step 3: Process LISTEN state
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 7f075b83128a..5cc5b24a956e 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -216,7 +216,7 @@ out:
 
 static int dccp_v6_send_response(struct sock *sk, struct request_sock *req)
 {
-	struct inet6_request_sock *ireq6 = inet6_rsk(req);
+	struct inet_request_sock *ireq = inet_rsk(req);
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct sk_buff *skb;
 	struct in6_addr *final_p, final;
@@ -226,12 +226,12 @@ static int dccp_v6_send_response(struct sock *sk, struct request_sock *req)
 
 	memset(&fl6, 0, sizeof(fl6));
 	fl6.flowi6_proto = IPPROTO_DCCP;
-	fl6.daddr = ireq6->rmt_addr;
-	fl6.saddr = ireq6->loc_addr;
+	fl6.daddr = ireq->ir_v6_rmt_addr;
+	fl6.saddr = ireq->ir_v6_loc_addr;
 	fl6.flowlabel = 0;
-	fl6.flowi6_oif = ireq6->iif;
-	fl6.fl6_dport = inet_rsk(req)->rmt_port;
-	fl6.fl6_sport = inet_rsk(req)->loc_port;
+	fl6.flowi6_oif = ireq->ir_iif;
+	fl6.fl6_dport = ireq->ir_rmt_port;
+	fl6.fl6_sport = ireq->ir_loc_port;
 	security_req_classify_flow(req, flowi6_to_flowi(&fl6));
 
 
@@ -249,9 +249,9 @@ static int dccp_v6_send_response(struct sock *sk, struct request_sock *req)
 		struct dccp_hdr *dh = dccp_hdr(skb);
 
 		dh->dccph_checksum = dccp_v6_csum_finish(skb,
-							 &ireq6->loc_addr,
-							 &ireq6->rmt_addr);
-		fl6.daddr = ireq6->rmt_addr;
+							 &ireq->ir_v6_loc_addr,
+							 &ireq->ir_v6_rmt_addr);
+		fl6.daddr = ireq->ir_v6_rmt_addr;
 		err = ip6_xmit(sk, skb, &fl6, np->opt, np->tclass);
 		err = net_xmit_eval(err);
 	}
@@ -264,8 +264,7 @@ done:
 static void dccp_v6_reqsk_destructor(struct request_sock *req)
 {
 	dccp_feat_list_purge(&dccp_rsk(req)->dreq_featneg);
-	if (inet6_rsk(req)->pktopts != NULL)
-		kfree_skb(inet6_rsk(req)->pktopts);
+	kfree_skb(inet_rsk(req)->pktopts);
 }
 
 static void dccp_v6_ctl_send_reset(struct sock *sk, struct sk_buff *rxskb)
@@ -359,7 +358,7 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 {
 	struct request_sock *req;
 	struct dccp_request_sock *dreq;
-	struct inet6_request_sock *ireq6;
+	struct inet_request_sock *ireq;
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	const __be32 service = dccp_hdr_request(skb)->dccph_req_service;
 	struct dccp_skb_cb *dcb = DCCP_SKB_CB(skb);
@@ -398,22 +397,22 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 	if (security_inet_conn_request(sk, skb, req))
 		goto drop_and_free;
 
-	ireq6 = inet6_rsk(req);
-	ireq6->rmt_addr = ipv6_hdr(skb)->saddr;
-	ireq6->loc_addr = ipv6_hdr(skb)->daddr;
+	ireq = inet_rsk(req);
+	ireq->ir_v6_rmt_addr = ipv6_hdr(skb)->saddr;
+	ireq->ir_v6_loc_addr = ipv6_hdr(skb)->daddr;
 
 	if (ipv6_opt_accepted(sk, skb) ||
 	    np->rxopt.bits.rxinfo || np->rxopt.bits.rxoinfo ||
 	    np->rxopt.bits.rxhlim || np->rxopt.bits.rxohlim) {
 		atomic_inc(&skb->users);
-		ireq6->pktopts = skb;
+		ireq->pktopts = skb;
 	}
-	ireq6->iif = sk->sk_bound_dev_if;
+	ireq->ir_iif = sk->sk_bound_dev_if;
 
 	/* So that link locals have meaning */
 	if (!sk->sk_bound_dev_if &&
-	    ipv6_addr_type(&ireq6->rmt_addr) & IPV6_ADDR_LINKLOCAL)
-		ireq6->iif = inet6_iif(skb);
+	    ipv6_addr_type(&ireq->ir_v6_rmt_addr) & IPV6_ADDR_LINKLOCAL)
+		ireq->ir_iif = inet6_iif(skb);
 
 	/*
 	 * Step 3: Process LISTEN state
@@ -446,7 +445,7 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
 					      struct request_sock *req,
 					      struct dst_entry *dst)
 {
-	struct inet6_request_sock *ireq6 = inet6_rsk(req);
+	struct inet_request_sock *ireq = inet_rsk(req);
 	struct ipv6_pinfo *newnp, *np = inet6_sk(sk);
 	struct inet_sock *newinet;
 	struct dccp6_sock *newdp6;
@@ -505,12 +504,12 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
 
 		memset(&fl6, 0, sizeof(fl6));
 		fl6.flowi6_proto = IPPROTO_DCCP;
-		fl6.daddr = ireq6->rmt_addr;
+		fl6.daddr = ireq->ir_v6_rmt_addr;
 		final_p = fl6_update_dst(&fl6, np->opt, &final);
-		fl6.saddr = ireq6->loc_addr;
+		fl6.saddr = ireq->ir_v6_loc_addr;
 		fl6.flowi6_oif = sk->sk_bound_dev_if;
-		fl6.fl6_dport = inet_rsk(req)->rmt_port;
-		fl6.fl6_sport = inet_rsk(req)->loc_port;
+		fl6.fl6_dport = ireq->ir_rmt_port;
+		fl6.fl6_sport = ireq->ir_loc_port;
 		security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
 
 		dst = ip6_dst_lookup_flow(sk, &fl6, final_p, false);
@@ -538,10 +537,10 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
 
 	memcpy(newnp, np, sizeof(struct ipv6_pinfo));
 
-	newsk->sk_v6_daddr = ireq6->rmt_addr;
-	newnp->saddr = ireq6->loc_addr;
-	newsk->sk_v6_rcv_saddr = ireq6->loc_addr;
-	newsk->sk_bound_dev_if = ireq6->iif;
+	newsk->sk_v6_daddr	= ireq->ir_v6_rmt_addr;
+	newnp->saddr		= ireq->ir_v6_loc_addr;
+	newsk->sk_v6_rcv_saddr	= ireq->ir_v6_loc_addr;
+	newsk->sk_bound_dev_if	= ireq->ir_iif;
 
 	/* Now IPv6 options...
 
@@ -554,10 +553,10 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
 
 	/* Clone pktoptions received with SYN */
 	newnp->pktoptions = NULL;
-	if (ireq6->pktopts != NULL) {
-		newnp->pktoptions = skb_clone(ireq6->pktopts, GFP_ATOMIC);
-		consume_skb(ireq6->pktopts);
-		ireq6->pktopts = NULL;
+	if (ireq->pktopts != NULL) {
+		newnp->pktoptions = skb_clone(ireq->pktopts, GFP_ATOMIC);
+		consume_skb(ireq->pktopts);
+		ireq->pktopts = NULL;
 		if (newnp->pktoptions)
 			skb_set_owner_r(newnp->pktoptions, newsk);
 	}
diff --git a/net/dccp/ipv6.h b/net/dccp/ipv6.h
index 6604fc3fe953..af259e15e7f0 100644
--- a/net/dccp/ipv6.h
+++ b/net/dccp/ipv6.h
@@ -25,7 +25,6 @@ struct dccp6_sock {
 
 struct dccp6_request_sock {
 	struct dccp_request_sock  dccp;
-	struct inet6_request_sock inet6;
 };
 
 struct dccp6_timewait_sock {
diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c
index 32e80d96d4c0..66afbcec2941 100644
--- a/net/dccp/minisocks.c
+++ b/net/dccp/minisocks.c
@@ -266,8 +266,8 @@ int dccp_reqsk_init(struct request_sock *req,
 {
 	struct dccp_request_sock *dreq = dccp_rsk(req);
 
-	inet_rsk(req)->rmt_port	  = dccp_hdr(skb)->dccph_sport;
-	inet_rsk(req)->loc_port	  = dccp_hdr(skb)->dccph_dport;
+	inet_rsk(req)->ir_rmt_port	  = dccp_hdr(skb)->dccph_sport;
+	inet_rsk(req)->ir_loc_port	  = dccp_hdr(skb)->dccph_dport;
 	inet_rsk(req)->acked	  = 0;
 	dreq->dreq_timestamp_echo = 0;
 
diff --git a/net/dccp/output.c b/net/dccp/output.c
index d17fc90a74b6..9bf195d1b87a 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -424,8 +424,8 @@ struct sk_buff *dccp_make_response(struct sock *sk, struct dst_entry *dst,
 	/* Build and checksum header */
 	dh = dccp_zeroed_hdr(skb, dccp_header_size);
 
-	dh->dccph_sport	= inet_rsk(req)->loc_port;
-	dh->dccph_dport	= inet_rsk(req)->rmt_port;
+	dh->dccph_sport	= inet_rsk(req)->ir_loc_port;
+	dh->dccph_dport	= inet_rsk(req)->ir_rmt_port;
 	dh->dccph_doff	= (dccp_header_size +
 			   DCCP_SKB_CB(skb)->dccpd_opt_len) / 4;
 	dh->dccph_type	= DCCP_PKT_RESPONSE;
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 56e82a4027b4..2ffd931d652f 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -412,8 +412,8 @@ struct dst_entry *inet_csk_route_req(struct sock *sk,
 			   RT_CONN_FLAGS(sk), RT_SCOPE_UNIVERSE,
 			   sk->sk_protocol,
 			   flags,
-			   (opt && opt->opt.srr) ? opt->opt.faddr : ireq->rmt_addr,
-			   ireq->loc_addr, ireq->rmt_port, inet_sk(sk)->inet_sport);
+			   (opt && opt->opt.srr) ? opt->opt.faddr : ireq->ir_rmt_addr,
+			   ireq->ir_loc_addr, ireq->ir_rmt_port, inet_sk(sk)->inet_sport);
 	security_req_classify_flow(req, flowi4_to_flowi(fl4));
 	rt = ip_route_output_flow(net, fl4, sk);
 	if (IS_ERR(rt))
@@ -448,8 +448,8 @@ struct dst_entry *inet_csk_route_child_sock(struct sock *sk,
 	flowi4_init_output(fl4, sk->sk_bound_dev_if, sk->sk_mark,
 			   RT_CONN_FLAGS(sk), RT_SCOPE_UNIVERSE,
 			   sk->sk_protocol, inet_sk_flowi_flags(sk),
-			   (opt && opt->opt.srr) ? opt->opt.faddr : ireq->rmt_addr,
-			   ireq->loc_addr, ireq->rmt_port, inet_sk(sk)->inet_sport);
+			   (opt && opt->opt.srr) ? opt->opt.faddr : ireq->ir_rmt_addr,
+			   ireq->ir_loc_addr, ireq->ir_rmt_port, inet_sk(sk)->inet_sport);
 	security_req_classify_flow(req, flowi4_to_flowi(fl4));
 	rt = ip_route_output_flow(net, fl4, sk);
 	if (IS_ERR(rt))
@@ -495,9 +495,9 @@ struct request_sock *inet_csk_search_req(const struct sock *sk,
 	     prev = &req->dl_next) {
 		const struct inet_request_sock *ireq = inet_rsk(req);
 
-		if (ireq->rmt_port == rport &&
-		    ireq->rmt_addr == raddr &&
-		    ireq->loc_addr == laddr &&
+		if (ireq->ir_rmt_port == rport &&
+		    ireq->ir_rmt_addr == raddr &&
+		    ireq->ir_loc_addr == laddr &&
 		    AF_INET_FAMILY(req->rsk_ops->family)) {
 			WARN_ON(req->sk);
 			*prevp = prev;
@@ -514,7 +514,8 @@ void inet_csk_reqsk_queue_hash_add(struct sock *sk, struct request_sock *req,
 {
 	struct inet_connection_sock *icsk = inet_csk(sk);
 	struct listen_sock *lopt = icsk->icsk_accept_queue.listen_opt;
-	const u32 h = inet_synq_hash(inet_rsk(req)->rmt_addr, inet_rsk(req)->rmt_port,
+	const u32 h = inet_synq_hash(inet_rsk(req)->ir_rmt_addr,
+				     inet_rsk(req)->ir_rmt_port,
 				     lopt->hash_rnd, lopt->nr_table_entries);
 
 	reqsk_queue_hash_req(&icsk->icsk_accept_queue, h, req, timeout);
@@ -674,9 +675,9 @@ struct sock *inet_csk_clone_lock(const struct sock *sk,
 		newsk->sk_state = TCP_SYN_RECV;
 		newicsk->icsk_bind_hash = NULL;
 
-		inet_sk(newsk)->inet_dport = inet_rsk(req)->rmt_port;
-		inet_sk(newsk)->inet_num = ntohs(inet_rsk(req)->loc_port);
-		inet_sk(newsk)->inet_sport = inet_rsk(req)->loc_port;
+		inet_sk(newsk)->inet_dport = inet_rsk(req)->ir_rmt_port;
+		inet_sk(newsk)->inet_num = ntohs(inet_rsk(req)->ir_loc_port);
+		inet_sk(newsk)->inet_sport = inet_rsk(req)->ir_loc_port;
 		newsk->sk_write_space = sk_stream_write_space;
 
 		newicsk->icsk_retransmits = 0;
diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index ecc179d676e4..41e1c3ea8b51 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -679,12 +679,12 @@ static inline void inet_diag_req_addrs(const struct sock *sk,
 #if IS_ENABLED(CONFIG_IPV6)
 	if (sk->sk_family == AF_INET6) {
 		if (req->rsk_ops->family == AF_INET6) {
-			entry->saddr = inet6_rsk(req)->loc_addr.s6_addr32;
-			entry->daddr = inet6_rsk(req)->rmt_addr.s6_addr32;
+			entry->saddr = ireq->ir_v6_loc_addr.s6_addr32;
+			entry->daddr = ireq->ir_v6_rmt_addr.s6_addr32;
 		} else if (req->rsk_ops->family == AF_INET) {
-			ipv6_addr_set_v4mapped(ireq->loc_addr,
+			ipv6_addr_set_v4mapped(ireq->ir_loc_addr,
 					       &entry->saddr_storage);
-			ipv6_addr_set_v4mapped(ireq->rmt_addr,
+			ipv6_addr_set_v4mapped(ireq->ir_rmt_addr,
 					       &entry->daddr_storage);
 			entry->saddr = entry->saddr_storage.s6_addr32;
 			entry->daddr = entry->daddr_storage.s6_addr32;
@@ -692,8 +692,8 @@ static inline void inet_diag_req_addrs(const struct sock *sk,
 	} else
 #endif
 	{
-		entry->saddr = &ireq->loc_addr;
-		entry->daddr = &ireq->rmt_addr;
+		entry->saddr = &ireq->ir_loc_addr;
+		entry->daddr = &ireq->ir_rmt_addr;
 	}
 }
 
@@ -728,9 +728,9 @@ static int inet_diag_fill_req(struct sk_buff *skb, struct sock *sk,
 		tmo = 0;
 
 	r->id.idiag_sport = inet->inet_sport;
-	r->id.idiag_dport = ireq->rmt_port;
-	r->id.idiag_src[0] = ireq->loc_addr;
-	r->id.idiag_dst[0] = ireq->rmt_addr;
+	r->id.idiag_dport = ireq->ir_rmt_port;
+	r->id.idiag_src[0] = ireq->ir_loc_addr;
+	r->id.idiag_dst[0] = ireq->ir_rmt_addr;
 	r->idiag_expires = jiffies_to_msecs(tmo);
 	r->idiag_rqueue = 0;
 	r->idiag_wqueue = 0;
@@ -789,13 +789,13 @@ static int inet_diag_dump_reqs(struct sk_buff *skb, struct sock *sk,
 
 			if (reqnum < s_reqnum)
 				continue;
-			if (r->id.idiag_dport != ireq->rmt_port &&
+			if (r->id.idiag_dport != ireq->ir_rmt_port &&
 			    r->id.idiag_dport)
 				continue;
 
 			if (bc) {
 				inet_diag_req_addrs(sk, req, &entry);
-				entry.dport = ntohs(ireq->rmt_port);
+				entry.dport = ntohs(ireq->ir_rmt_port);
 
 				if (!inet_diag_bc_run(bc, &entry))
 					continue;
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index 15e024105f91..984e21cf3c50 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -304,10 +304,10 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 	treq->rcv_isn		= ntohl(th->seq) - 1;
 	treq->snt_isn		= cookie;
 	req->mss		= mss;
-	ireq->loc_port		= th->dest;
-	ireq->rmt_port		= th->source;
-	ireq->loc_addr		= ip_hdr(skb)->daddr;
-	ireq->rmt_addr		= ip_hdr(skb)->saddr;
+	ireq->ir_loc_port		= th->dest;
+	ireq->ir_rmt_port		= th->source;
+	ireq->ir_loc_addr		= ip_hdr(skb)->daddr;
+	ireq->ir_rmt_addr		= ip_hdr(skb)->saddr;
 	ireq->ecn_ok		= ecn_ok;
 	ireq->snd_wscale	= tcp_opt.snd_wscale;
 	ireq->sack_ok		= tcp_opt.sack_ok;
@@ -347,8 +347,8 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 	flowi4_init_output(&fl4, sk->sk_bound_dev_if, sk->sk_mark,
 			   RT_CONN_FLAGS(sk), RT_SCOPE_UNIVERSE, IPPROTO_TCP,
 			   inet_sk_flowi_flags(sk),
-			   (opt && opt->srr) ? opt->faddr : ireq->rmt_addr,
-			   ireq->loc_addr, th->source, th->dest);
+			   (opt && opt->srr) ? opt->faddr : ireq->ir_rmt_addr,
+			   ireq->ir_loc_addr, th->source, th->dest);
 	security_req_classify_flow(req, flowi4_to_flowi(&fl4));
 	rt = ip_route_output_key(sock_net(sk), &fl4);
 	if (IS_ERR(rt)) {
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index e4695dde1af6..114d1b748cbb 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -835,11 +835,11 @@ static int tcp_v4_send_synack(struct sock *sk, struct dst_entry *dst,
 	skb = tcp_make_synack(sk, dst, req, NULL);
 
 	if (skb) {
-		__tcp_v4_send_check(skb, ireq->loc_addr, ireq->rmt_addr);
+		__tcp_v4_send_check(skb, ireq->ir_loc_addr, ireq->ir_rmt_addr);
 
 		skb_set_queue_mapping(skb, queue_mapping);
-		err = ip_build_and_send_pkt(skb, sk, ireq->loc_addr,
-					    ireq->rmt_addr,
+		err = ip_build_and_send_pkt(skb, sk, ireq->ir_loc_addr,
+					    ireq->ir_rmt_addr,
 					    ireq->opt);
 		err = net_xmit_eval(err);
 		if (!tcp_rsk(req)->snt_synack && !err)
@@ -972,7 +972,7 @@ static struct tcp_md5sig_key *tcp_v4_reqsk_md5_lookup(struct sock *sk,
 {
 	union tcp_md5_addr *addr;
 
-	addr = (union tcp_md5_addr *)&inet_rsk(req)->rmt_addr;
+	addr = (union tcp_md5_addr *)&inet_rsk(req)->ir_rmt_addr;
 	return tcp_md5_do_lookup(sk, addr, AF_INET);
 }
 
@@ -1149,8 +1149,8 @@ int tcp_v4_md5_hash_skb(char *md5_hash, struct tcp_md5sig_key *key,
 		saddr = inet_sk(sk)->inet_saddr;
 		daddr = inet_sk(sk)->inet_daddr;
 	} else if (req) {
-		saddr = inet_rsk(req)->loc_addr;
-		daddr = inet_rsk(req)->rmt_addr;
+		saddr = inet_rsk(req)->ir_loc_addr;
+		daddr = inet_rsk(req)->ir_rmt_addr;
 	} else {
 		const struct iphdr *iph = ip_hdr(skb);
 		saddr = iph->saddr;
@@ -1366,8 +1366,8 @@ static int tcp_v4_conn_req_fastopen(struct sock *sk,
 		kfree_skb(skb_synack);
 		return -1;
 	}
-	err = ip_build_and_send_pkt(skb_synack, sk, ireq->loc_addr,
-				    ireq->rmt_addr, ireq->opt);
+	err = ip_build_and_send_pkt(skb_synack, sk, ireq->ir_loc_addr,
+				    ireq->ir_rmt_addr, ireq->opt);
 	err = net_xmit_eval(err);
 	if (!err)
 		tcp_rsk(req)->snt_synack = tcp_time_stamp;
@@ -1502,8 +1502,8 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 	tcp_openreq_init(req, &tmp_opt, skb);
 
 	ireq = inet_rsk(req);
-	ireq->loc_addr = daddr;
-	ireq->rmt_addr = saddr;
+	ireq->ir_loc_addr = daddr;
+	ireq->ir_rmt_addr = saddr;
 	ireq->no_srccheck = inet_sk(sk)->transparent;
 	ireq->opt = tcp_v4_save_options(skb);
 
@@ -1578,15 +1578,15 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 	    fastopen_cookie_present(&valid_foc) ? &valid_foc : NULL);
 
 	if (skb_synack) {
-		__tcp_v4_send_check(skb_synack, ireq->loc_addr, ireq->rmt_addr);
+		__tcp_v4_send_check(skb_synack, ireq->ir_loc_addr, ireq->ir_rmt_addr);
 		skb_set_queue_mapping(skb_synack, skb_get_queue_mapping(skb));
 	} else
 		goto drop_and_free;
 
 	if (likely(!do_fastopen)) {
 		int err;
-		err = ip_build_and_send_pkt(skb_synack, sk, ireq->loc_addr,
-		     ireq->rmt_addr, ireq->opt);
+		err = ip_build_and_send_pkt(skb_synack, sk, ireq->ir_loc_addr,
+		     ireq->ir_rmt_addr, ireq->opt);
 		err = net_xmit_eval(err);
 		if (err || want_cookie)
 			goto drop_and_free;
@@ -1644,9 +1644,9 @@ struct sock *tcp_v4_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 	newtp		      = tcp_sk(newsk);
 	newinet		      = inet_sk(newsk);
 	ireq		      = inet_rsk(req);
-	newinet->inet_daddr   = ireq->rmt_addr;
-	newinet->inet_rcv_saddr = ireq->loc_addr;
-	newinet->inet_saddr	      = ireq->loc_addr;
+	newinet->inet_daddr   = ireq->ir_rmt_addr;
+	newinet->inet_rcv_saddr = ireq->ir_loc_addr;
+	newinet->inet_saddr	      = ireq->ir_loc_addr;
 	inet_opt	      = ireq->opt;
 	rcu_assign_pointer(newinet->inet_opt, inet_opt);
 	ireq->opt	      = NULL;
@@ -2548,10 +2548,10 @@ static void get_openreq4(const struct sock *sk, const struct request_sock *req,
 	seq_printf(f, "%4d: %08X:%04X %08X:%04X"
 		" %02X %08X:%08X %02X:%08lX %08X %5u %8d %u %d %pK%n",
 		i,
-		ireq->loc_addr,
+		ireq->ir_loc_addr,
 		ntohs(inet_sk(sk)->inet_sport),
-		ireq->rmt_addr,
-		ntohs(ireq->rmt_port),
+		ireq->ir_rmt_addr,
+		ntohs(ireq->ir_rmt_port),
 		TCP_SYN_RECV,
 		0, 0, /* could print option size, but that is af dependent. */
 		1,    /* timers active (only the expire timer) */
diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c
index 8fcc2cb9dba4..4a2a84110dfb 100644
--- a/net/ipv4/tcp_metrics.c
+++ b/net/ipv4/tcp_metrics.c
@@ -215,13 +215,15 @@ static struct tcp_metrics_block *__tcp_get_metrics_req(struct request_sock *req,
 	addr.family = req->rsk_ops->family;
 	switch (addr.family) {
 	case AF_INET:
-		addr.addr.a4 = inet_rsk(req)->rmt_addr;
+		addr.addr.a4 = inet_rsk(req)->ir_rmt_addr;
 		hash = (__force unsigned int) addr.addr.a4;
 		break;
+#if IS_ENABLED(CONFIG_IPV6)
 	case AF_INET6:
-		*(struct in6_addr *)addr.addr.a6 = inet6_rsk(req)->rmt_addr;
-		hash = ipv6_addr_hash(&inet6_rsk(req)->rmt_addr);
+		*(struct in6_addr *)addr.addr.a6 = inet_rsk(req)->ir_v6_rmt_addr;
+		hash = ipv6_addr_hash(&inet_rsk(req)->ir_v6_rmt_addr);
 		break;
+#endif
 	default:
 		return NULL;
 	}
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index c6f01f2cdb32..faec81353522 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2734,8 +2734,8 @@ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst,
 	th->syn = 1;
 	th->ack = 1;
 	TCP_ECN_make_synack(req, th);
-	th->source = ireq->loc_port;
-	th->dest = ireq->rmt_port;
+	th->source = ireq->ir_loc_port;
+	th->dest = ireq->ir_rmt_port;
 	/* Setting of flags are superfluous here for callers (and ECE is
 	 * not even correctly set)
 	 */
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index b7400b480e74..1317c569b58f 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -70,20 +70,20 @@ struct dst_entry *inet6_csk_route_req(struct sock *sk,
 				      struct flowi6 *fl6,
 				      const struct request_sock *req)
 {
-	struct inet6_request_sock *treq = inet6_rsk(req);
+	struct inet_request_sock *ireq = inet_rsk(req);
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct in6_addr *final_p, final;
 	struct dst_entry *dst;
 
 	memset(fl6, 0, sizeof(*fl6));
 	fl6->flowi6_proto = IPPROTO_TCP;
-	fl6->daddr = treq->rmt_addr;
+	fl6->daddr = ireq->ir_v6_rmt_addr;
 	final_p = fl6_update_dst(fl6, np->opt, &final);
-	fl6->saddr = treq->loc_addr;
-	fl6->flowi6_oif = treq->iif;
+	fl6->saddr = ireq->ir_v6_loc_addr;
+	fl6->flowi6_oif = ireq->ir_iif;
 	fl6->flowi6_mark = sk->sk_mark;
-	fl6->fl6_dport = inet_rsk(req)->rmt_port;
-	fl6->fl6_sport = inet_rsk(req)->loc_port;
+	fl6->fl6_dport = ireq->ir_rmt_port;
+	fl6->fl6_sport = ireq->ir_loc_port;
 	security_req_classify_flow(req, flowi6_to_flowi(fl6));
 
 	dst = ip6_dst_lookup_flow(sk, fl6, final_p, false);
@@ -129,13 +129,13 @@ struct request_sock *inet6_csk_search_req(const struct sock *sk,
 						     lopt->nr_table_entries)];
 	     (req = *prev) != NULL;
 	     prev = &req->dl_next) {
-		const struct inet6_request_sock *treq = inet6_rsk(req);
+		const struct inet_request_sock *ireq = inet_rsk(req);
 
-		if (inet_rsk(req)->rmt_port == rport &&
+		if (ireq->ir_rmt_port == rport &&
 		    req->rsk_ops->family == AF_INET6 &&
-		    ipv6_addr_equal(&treq->rmt_addr, raddr) &&
-		    ipv6_addr_equal(&treq->loc_addr, laddr) &&
-		    (!treq->iif || treq->iif == iif)) {
+		    ipv6_addr_equal(&ireq->ir_v6_rmt_addr, raddr) &&
+		    ipv6_addr_equal(&ireq->ir_v6_loc_addr, laddr) &&
+		    (!ireq->ir_iif || ireq->ir_iif == iif)) {
 			WARN_ON(req->sk != NULL);
 			*prevp = prev;
 			return req;
@@ -153,8 +153,8 @@ void inet6_csk_reqsk_queue_hash_add(struct sock *sk,
 {
 	struct inet_connection_sock *icsk = inet_csk(sk);
 	struct listen_sock *lopt = icsk->icsk_accept_queue.listen_opt;
-	const u32 h = inet6_synq_hash(&inet6_rsk(req)->rmt_addr,
-				      inet_rsk(req)->rmt_port,
+	const u32 h = inet6_synq_hash(&inet_rsk(req)->ir_v6_rmt_addr,
+				      inet_rsk(req)->ir_rmt_port,
 				      lopt->hash_rnd, lopt->nr_table_entries);
 
 	reqsk_queue_hash_req(&icsk->icsk_accept_queue, h, req, timeout);
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index d703218a653b..bc5698f9e4cd 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -150,7 +150,6 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
 {
 	struct tcp_options_received tcp_opt;
 	struct inet_request_sock *ireq;
-	struct inet6_request_sock *ireq6;
 	struct tcp_request_sock *treq;
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct tcp_sock *tp = tcp_sk(sk);
@@ -187,7 +186,6 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
 		goto out;
 
 	ireq = inet_rsk(req);
-	ireq6 = inet6_rsk(req);
 	treq = tcp_rsk(req);
 	treq->listener = NULL;
 
@@ -195,22 +193,22 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
 		goto out_free;
 
 	req->mss = mss;
-	ireq->rmt_port = th->source;
-	ireq->loc_port = th->dest;
-	ireq6->rmt_addr = ipv6_hdr(skb)->saddr;
-	ireq6->loc_addr = ipv6_hdr(skb)->daddr;
+	ireq->ir_rmt_port = th->source;
+	ireq->ir_loc_port = th->dest;
+	ireq->ir_v6_rmt_addr = ipv6_hdr(skb)->saddr;
+	ireq->ir_v6_loc_addr = ipv6_hdr(skb)->daddr;
 	if (ipv6_opt_accepted(sk, skb) ||
 	    np->rxopt.bits.rxinfo || np->rxopt.bits.rxoinfo ||
 	    np->rxopt.bits.rxhlim || np->rxopt.bits.rxohlim) {
 		atomic_inc(&skb->users);
-		ireq6->pktopts = skb;
+		ireq->pktopts = skb;
 	}
 
-	ireq6->iif = sk->sk_bound_dev_if;
+	ireq->ir_iif = sk->sk_bound_dev_if;
 	/* So that link locals have meaning */
 	if (!sk->sk_bound_dev_if &&
-	    ipv6_addr_type(&ireq6->rmt_addr) & IPV6_ADDR_LINKLOCAL)
-		ireq6->iif = inet6_iif(skb);
+	    ipv6_addr_type(&ireq->ir_v6_rmt_addr) & IPV6_ADDR_LINKLOCAL)
+		ireq->ir_iif = inet6_iif(skb);
 
 	req->expires = 0UL;
 	req->num_retrans = 0;
@@ -234,12 +232,12 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
 		struct flowi6 fl6;
 		memset(&fl6, 0, sizeof(fl6));
 		fl6.flowi6_proto = IPPROTO_TCP;
-		fl6.daddr = ireq6->rmt_addr;
+		fl6.daddr = ireq->ir_v6_rmt_addr;
 		final_p = fl6_update_dst(&fl6, np->opt, &final);
-		fl6.saddr = ireq6->loc_addr;
+		fl6.saddr = ireq->ir_v6_loc_addr;
 		fl6.flowi6_oif = sk->sk_bound_dev_if;
 		fl6.flowi6_mark = sk->sk_mark;
-		fl6.fl6_dport = inet_rsk(req)->rmt_port;
+		fl6.fl6_dport = ireq->ir_rmt_port;
 		fl6.fl6_sport = inet_sk(sk)->inet_sport;
 		security_req_classify_flow(req, flowi6_to_flowi(&fl6));
 
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 541dfc40c7b3..db234d609b33 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -465,7 +465,7 @@ static int tcp_v6_send_synack(struct sock *sk, struct dst_entry *dst,
 			      struct request_sock *req,
 			      u16 queue_mapping)
 {
-	struct inet6_request_sock *treq = inet6_rsk(req);
+	struct inet_request_sock *ireq = inet_rsk(req);
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct sk_buff * skb;
 	int err = -ENOMEM;
@@ -477,9 +477,10 @@ static int tcp_v6_send_synack(struct sock *sk, struct dst_entry *dst,
 	skb = tcp_make_synack(sk, dst, req, NULL);
 
 	if (skb) {
-		__tcp_v6_send_check(skb, &treq->loc_addr, &treq->rmt_addr);
+		__tcp_v6_send_check(skb, &ireq->ir_v6_loc_addr,
+				    &ireq->ir_v6_rmt_addr);
 
-		fl6->daddr = treq->rmt_addr;
+		fl6->daddr = ireq->ir_v6_rmt_addr;
 		skb_set_queue_mapping(skb, queue_mapping);
 		err = ip6_xmit(sk, skb, fl6, np->opt, np->tclass);
 		err = net_xmit_eval(err);
@@ -502,7 +503,7 @@ static int tcp_v6_rtx_synack(struct sock *sk, struct request_sock *req)
 
 static void tcp_v6_reqsk_destructor(struct request_sock *req)
 {
-	kfree_skb(inet6_rsk(req)->pktopts);
+	kfree_skb(inet_rsk(req)->pktopts);
 }
 
 #ifdef CONFIG_TCP_MD5SIG
@@ -521,7 +522,7 @@ static struct tcp_md5sig_key *tcp_v6_md5_lookup(struct sock *sk,
 static struct tcp_md5sig_key *tcp_v6_reqsk_md5_lookup(struct sock *sk,
 						      struct request_sock *req)
 {
-	return tcp_v6_md5_do_lookup(sk, &inet6_rsk(req)->rmt_addr);
+	return tcp_v6_md5_do_lookup(sk, &inet_rsk(req)->ir_v6_rmt_addr);
 }
 
 static int tcp_v6_parse_md5_keys (struct sock *sk, char __user *optval,
@@ -623,8 +624,8 @@ static int tcp_v6_md5_hash_skb(char *md5_hash, struct tcp_md5sig_key *key,
 		saddr = &inet6_sk(sk)->saddr;
 		daddr = &sk->sk_v6_daddr;
 	} else if (req) {
-		saddr = &inet6_rsk(req)->loc_addr;
-		daddr = &inet6_rsk(req)->rmt_addr;
+		saddr = &inet_rsk(req)->ir_v6_loc_addr;
+		daddr = &inet_rsk(req)->ir_v6_rmt_addr;
 	} else {
 		const struct ipv6hdr *ip6h = ipv6_hdr(skb);
 		saddr = &ip6h->saddr;
@@ -949,7 +950,7 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 {
 	struct tcp_options_received tmp_opt;
 	struct request_sock *req;
-	struct inet6_request_sock *treq;
+	struct inet_request_sock *ireq;
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct tcp_sock *tp = tcp_sk(sk);
 	__u32 isn = TCP_SKB_CB(skb)->when;
@@ -994,25 +995,25 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 	tmp_opt.tstamp_ok = tmp_opt.saw_tstamp;
 	tcp_openreq_init(req, &tmp_opt, skb);
 
-	treq = inet6_rsk(req);
-	treq->rmt_addr = ipv6_hdr(skb)->saddr;
-	treq->loc_addr = ipv6_hdr(skb)->daddr;
+	ireq = inet_rsk(req);
+	ireq->ir_v6_rmt_addr = ipv6_hdr(skb)->saddr;
+	ireq->ir_v6_loc_addr = ipv6_hdr(skb)->daddr;
 	if (!want_cookie || tmp_opt.tstamp_ok)
 		TCP_ECN_create_request(req, skb, sock_net(sk));
 
-	treq->iif = sk->sk_bound_dev_if;
+	ireq->ir_iif = sk->sk_bound_dev_if;
 
 	/* So that link locals have meaning */
 	if (!sk->sk_bound_dev_if &&
-	    ipv6_addr_type(&treq->rmt_addr) & IPV6_ADDR_LINKLOCAL)
-		treq->iif = inet6_iif(skb);
+	    ipv6_addr_type(&ireq->ir_v6_rmt_addr) & IPV6_ADDR_LINKLOCAL)
+		ireq->ir_iif = inet6_iif(skb);
 
 	if (!isn) {
 		if (ipv6_opt_accepted(sk, skb) ||
 		    np->rxopt.bits.rxinfo || np->rxopt.bits.rxoinfo ||
 		    np->rxopt.bits.rxhlim || np->rxopt.bits.rxohlim) {
 			atomic_inc(&skb->users);
-			treq->pktopts = skb;
+			ireq->pktopts = skb;
 		}
 
 		if (want_cookie) {
@@ -1051,7 +1052,7 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 			 * to the moment of synflood.
 			 */
 			LIMIT_NETDEBUG(KERN_DEBUG "TCP: drop open request from %pI6/%u\n",
-				       &treq->rmt_addr, ntohs(tcp_hdr(skb)->source));
+				       &ireq->ir_v6_rmt_addr, ntohs(tcp_hdr(skb)->source));
 			goto drop_and_release;
 		}
 
@@ -1086,7 +1087,7 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 					  struct request_sock *req,
 					  struct dst_entry *dst)
 {
-	struct inet6_request_sock *treq;
+	struct inet_request_sock *ireq;
 	struct ipv6_pinfo *newnp, *np = inet6_sk(sk);
 	struct tcp6_sock *newtcp6sk;
 	struct inet_sock *newinet;
@@ -1151,7 +1152,7 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 		return newsk;
 	}
 
-	treq = inet6_rsk(req);
+	ireq = inet_rsk(req);
 
 	if (sk_acceptq_is_full(sk))
 		goto out_overflow;
@@ -1185,10 +1186,10 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 
 	memcpy(newnp, np, sizeof(struct ipv6_pinfo));
 
-	newsk->sk_v6_daddr = treq->rmt_addr;
-	newnp->saddr = treq->loc_addr;
-	newsk->sk_v6_rcv_saddr = treq->loc_addr;
-	newsk->sk_bound_dev_if = treq->iif;
+	newsk->sk_v6_daddr = ireq->ir_v6_rmt_addr;
+	newnp->saddr = ireq->ir_v6_loc_addr;
+	newsk->sk_v6_rcv_saddr = ireq->ir_v6_loc_addr;
+	newsk->sk_bound_dev_if = ireq->ir_iif;
 
 	/* Now IPv6 options...
 
@@ -1203,11 +1204,11 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
 
 	/* Clone pktoptions received with SYN */
 	newnp->pktoptions = NULL;
-	if (treq->pktopts != NULL) {
-		newnp->pktoptions = skb_clone(treq->pktopts,
+	if (ireq->pktopts != NULL) {
+		newnp->pktoptions = skb_clone(ireq->pktopts,
 					      sk_gfp_atomic(sk, GFP_ATOMIC));
-		consume_skb(treq->pktopts);
-		treq->pktopts = NULL;
+		consume_skb(ireq->pktopts);
+		ireq->pktopts = NULL;
 		if (newnp->pktoptions)
 			skb_set_owner_r(newnp->pktoptions, newsk);
 	}
@@ -1722,8 +1723,8 @@ static void get_openreq6(struct seq_file *seq,
 			 const struct sock *sk, struct request_sock *req, int i, kuid_t uid)
 {
 	int ttd = req->expires - jiffies;
-	const struct in6_addr *src = &inet6_rsk(req)->loc_addr;
-	const struct in6_addr *dest = &inet6_rsk(req)->rmt_addr;
+	const struct in6_addr *src = &inet_rsk(req)->ir_v6_loc_addr;
+	const struct in6_addr *dest = &inet_rsk(req)->ir_v6_rmt_addr;
 
 	if (ttd < 0)
 		ttd = 0;
@@ -1734,10 +1735,10 @@ static void get_openreq6(struct seq_file *seq,
 		   i,
 		   src->s6_addr32[0], src->s6_addr32[1],
 		   src->s6_addr32[2], src->s6_addr32[3],
-		   ntohs(inet_rsk(req)->loc_port),
+		   ntohs(inet_rsk(req)->ir_loc_port),
 		   dest->s6_addr32[0], dest->s6_addr32[1],
 		   dest->s6_addr32[2], dest->s6_addr32[3],
-		   ntohs(inet_rsk(req)->rmt_port),
+		   ntohs(inet_rsk(req)->ir_rmt_port),
 		   TCP_SYN_RECV,
 		   0,0, /* could print option size, but that is af dependent. */
 		   1,   /* timers active (only the expire timer) */
diff --git a/net/netlabel/netlabel_kapi.c b/net/netlabel/netlabel_kapi.c
index 96a458e12f60..dce1bebf7aec 100644
--- a/net/netlabel/netlabel_kapi.c
+++ b/net/netlabel/netlabel_kapi.c
@@ -817,7 +817,7 @@ int netlbl_req_setattr(struct request_sock *req,
 	switch (req->rsk_ops->family) {
 	case AF_INET:
 		entry = netlbl_domhsh_getentry_af4(secattr->domain,
-						   inet_rsk(req)->rmt_addr);
+						   inet_rsk(req)->ir_rmt_addr);
 		if (entry == NULL) {
 			ret_val = -ENOENT;
 			goto req_setattr_return;
-- 
cgit 


From ba537427d77cf274592f31ce94f4b4cadfad88b4 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 9 Oct 2013 17:14:52 -0700
Subject: tcp: use ACCESS_ONCE() in tcp_update_pacing_rate()

sk_pacing_rate is read by sch_fq packet scheduler at any time,
with no synchronization, so make sure we update it in a
sensible way. ACCESS_ONCE() is how we instruct compiler
to not do stupid things, like using the memory location
as a temporary variable.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/tcp_input.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 47b8ab7dce9c..eb651a069a6c 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -755,7 +755,12 @@ static void tcp_update_pacing_rate(struct sock *sk)
 	if (tp->srtt > 8 + 2)
 		do_div(rate, tp->srtt);
 
-	sk->sk_pacing_rate = min_t(u64, rate, sk->sk_max_pacing_rate);
+	/* ACCESS_ONCE() is needed because sch_fq fetches sk_pacing_rate
+	 * without any lock. We want to make sure compiler wont store
+	 * intermediate values in this location.
+	 */
+	ACCESS_ONCE(sk->sk_pacing_rate) = min_t(u64, rate,
+						sk->sk_max_pacing_rate);
 }
 
 /* Calculate rto without backoff.  This is the second half of Van Jacobson's
-- 
cgit 


From 35a1e2ad1716fe3d956eea6e356ca2758f6392a7 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Sat, 28 Sep 2013 06:00:17 +0000
Subject: i40e: Cleanup Tx buffer info layout

- drop the mapped_as_page u8 from the Tx buffer info as it was unused
- use the DMA unmap accessors for Tx DMA
- replace checks of DMA with checks of the unmap length to verify if an
  unmap is needed
- update the Tx buffer layout to make it consistent with igb, ixgbe

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_txrx.c | 16 ++++++++--------
 drivers/net/ethernet/intel/i40e/i40e_txrx.h | 13 ++++++-------
 2 files changed, 14 insertions(+), 15 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 32c9aebcb575..3bc3efa6229e 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -195,20 +195,20 @@ static void i40e_fd_handle_status(struct i40e_ring *rx_ring, u32 qw, u8 prog_id)
 static inline void i40e_unmap_tx_resource(struct i40e_ring *ring,
 					  struct i40e_tx_buffer *tx_buffer)
 {
-	if (tx_buffer->dma) {
+	if (dma_unmap_len(tx_buffer, len)) {
 		if (tx_buffer->tx_flags & I40E_TX_FLAGS_MAPPED_AS_PAGE)
 			dma_unmap_page(ring->dev,
-				       tx_buffer->dma,
-				       tx_buffer->length,
+				       dma_unmap_addr(tx_buffer, dma),
+				       dma_unmap_len(tx_buffer, len),
 				       DMA_TO_DEVICE);
 		else
 			dma_unmap_single(ring->dev,
-					 tx_buffer->dma,
-					 tx_buffer->length,
+					 dma_unmap_addr(tx_buffer, dma),
+					 dma_unmap_len(tx_buffer, len),
 					 DMA_TO_DEVICE);
 	}
-	tx_buffer->dma = 0;
 	tx_buffer->time_stamp = 0;
+	dma_unmap_len_set(tx_buffer, len, 0);
 }
 
 /**
@@ -1554,9 +1554,9 @@ static void i40e_tx_map(struct i40e_ring *tx_ring, struct sk_buff *skb,
 		}
 
 		tx_bi = &tx_ring->tx_bi[i];
-		tx_bi->length = buf_offset + size;
+		dma_unmap_len_set(tx_bi, len, buf_offset + size);
+		dma_unmap_addr_set(tx_bi, dma, dma);
 		tx_bi->tx_flags = tx_flags;
-		tx_bi->dma = dma;
 
 		tx_desc->buffer_addr = cpu_to_le64(dma + buf_offset);
 		tx_desc->cmd_type_offset_bsz = build_ctob(td_cmd, td_offset,
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
index 2fbacaff0445..711f54938489 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
@@ -110,15 +110,14 @@
 #define I40E_TX_FLAGS_VLAN_SHIFT	16
 
 struct i40e_tx_buffer {
-	struct sk_buff *skb;
-	dma_addr_t dma;
-	unsigned long time_stamp;
-	u16 length;
-	u32 tx_flags;
 	struct i40e_tx_desc *next_to_watch;
+	unsigned long time_stamp;
+	struct sk_buff *skb;
 	unsigned int bytecount;
-	u16 gso_segs;
-	u8 mapped_as_page;
+	unsigned short gso_segs;
+	DEFINE_DMA_UNMAP_ADDR(dma);
+	DEFINE_DMA_UNMAP_LEN(len);
+	u32 tx_flags;
 };
 
 struct i40e_rx_buffer {
-- 
cgit 


From fc4ac67bc98f1d54ec0ef8bcddf54892ad78e1f9 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Sat, 28 Sep 2013 06:00:22 +0000
Subject: i40e: Do not directly increment Tx next_to_use

Avoid directly incrementing next_to_use for multiple reasons.  The main
reason being that if we directly increment it then it can attain a state
where it is equal to the ring count.  Technically this is a state it
should not be able to reach but the way this is written it now can.

This patch pulls the value off into a register and then increments it
and writes back either the value or 0 depending on if the value is equal
to the ring count.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_txrx.c | 46 ++++++++++++++++-------------
 1 file changed, 25 insertions(+), 21 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 3bc3efa6229e..e8db4dca6e85 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -73,11 +73,12 @@ int i40e_program_fdir_filter(struct i40e_fdir_data *fdir_data,
 		goto dma_fail;
 
 	/* grab the next descriptor */
-	fdir_desc = I40E_TX_FDIRDESC(tx_ring, tx_ring->next_to_use);
-	tx_buf = &tx_ring->tx_bi[tx_ring->next_to_use];
-	tx_ring->next_to_use++;
-	if (tx_ring->next_to_use == tx_ring->count)
-		tx_ring->next_to_use = 0;
+	i = tx_ring->next_to_use;
+	fdir_desc = I40E_TX_FDIRDESC(tx_ring, i);
+	tx_buf = &tx_ring->tx_bi[i];
+
+	i++;
+	tx_ring->next_to_use = (i < tx_ring->count) ? i : 0;
 
 	fdir_desc->qindex_flex_ptype_vsi = cpu_to_le32((fdir_data->q_index
 					     << I40E_TXD_FLTR_QW0_QINDEX_SHIFT)
@@ -134,11 +135,11 @@ int i40e_program_fdir_filter(struct i40e_fdir_data *fdir_data,
 	fdir_desc->fd_id = cpu_to_le32(fdir_data->fd_id);
 
 	/* Now program a dummy descriptor */
-	tx_desc = I40E_TX_DESC(tx_ring, tx_ring->next_to_use);
-	tx_buf = &tx_ring->tx_bi[tx_ring->next_to_use];
-	tx_ring->next_to_use++;
-	if (tx_ring->next_to_use == tx_ring->count)
-		tx_ring->next_to_use = 0;
+	i = tx_ring->next_to_use;
+	tx_desc = I40E_TX_DESC(tx_ring, i);
+
+	i++;
+	tx_ring->next_to_use = (i < tx_ring->count) ? i : 0;
 
 	tx_desc->buffer_addr = cpu_to_le64(dma);
 	td_cmd = I40E_TX_DESC_CMD_EOP |
@@ -148,9 +149,6 @@ int i40e_program_fdir_filter(struct i40e_fdir_data *fdir_data,
 	tx_desc->cmd_type_offset_bsz =
 		build_ctob(td_cmd, 0, I40E_FDIR_MAX_RAW_PACKET_LOOKUP, 0);
 
-	/* Mark the data descriptor to be watched */
-	tx_buf->next_to_watch = tx_desc;
-
 	/* Force memory writes to complete before letting h/w
 	 * know there are new descriptors to fetch.  (Only
 	 * applicable for weak-ordered memory model archs,
@@ -158,6 +156,9 @@ int i40e_program_fdir_filter(struct i40e_fdir_data *fdir_data,
 	 */
 	wmb();
 
+	/* Mark the data descriptor to be watched */
+	tx_buf->next_to_watch = tx_desc;
+
 	writel(tx_ring->next_to_use, tx_ring->tail);
 	return 0;
 
@@ -1143,6 +1144,7 @@ static void i40e_atr(struct i40e_ring *tx_ring, struct sk_buff *skb,
 	struct tcphdr *th;
 	unsigned int hlen;
 	u32 flex_ptype, dtype_cmd;
+	u16 i;
 
 	/* make sure ATR is enabled */
 	if (!(pf->flags & I40E_FLAG_FDIR_ATR_ENABLED))
@@ -1182,10 +1184,11 @@ static void i40e_atr(struct i40e_ring *tx_ring, struct sk_buff *skb,
 	tx_ring->atr_count = 0;
 
 	/* grab the next descriptor */
-	fdir_desc = I40E_TX_FDIRDESC(tx_ring, tx_ring->next_to_use);
-	tx_ring->next_to_use++;
-	if (tx_ring->next_to_use == tx_ring->count)
-		tx_ring->next_to_use = 0;
+	i = tx_ring->next_to_use;
+	fdir_desc = I40E_TX_FDIRDESC(tx_ring, i);
+
+	i++;
+	tx_ring->next_to_use = (i < tx_ring->count) ? i : 0;
 
 	flex_ptype = (tx_ring->queue_index << I40E_TXD_FLTR_QW0_QINDEX_SHIFT) &
 		      I40E_TXD_FLTR_QW0_QINDEX_MASK;
@@ -1481,15 +1484,16 @@ static void i40e_create_tx_ctx(struct i40e_ring *tx_ring,
 			       const u32 cd_tunneling, const u32 cd_l2tag2)
 {
 	struct i40e_tx_context_desc *context_desc;
+	int i = tx_ring->next_to_use;
 
 	if (!cd_type_cmd_tso_mss && !cd_tunneling && !cd_l2tag2)
 		return;
 
 	/* grab the next descriptor */
-	context_desc = I40E_TX_CTXTDESC(tx_ring, tx_ring->next_to_use);
-	tx_ring->next_to_use++;
-	if (tx_ring->next_to_use == tx_ring->count)
-		tx_ring->next_to_use = 0;
+	context_desc = I40E_TX_CTXTDESC(tx_ring, i);
+
+	i++;
+	tx_ring->next_to_use = (i < tx_ring->count) ? i : 0;
 
 	/* cpu_to_le32 and assign to struct fields */
 	context_desc->tunneling_params = cpu_to_le32(cd_tunneling);
-- 
cgit 


From a5e9c5726424b05a3643450d45c134cea103181e Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Sat, 28 Sep 2013 06:00:27 +0000
Subject: i40e: clean up Tx fast path

Sync the fast path for i40e_tx_map and i40e_clean_tx_irq so that they
are similar to igb and ixgbe.

- Only update the Tx descriptor ring in tx_map
- Make skb mapping always on the first buffer in the chain
- Drop the use of MAPPED_AS_PAGE Tx flag
- Only store flags on the first buffer_info structure

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_txrx.c | 220 +++++++++++++++-------------
 drivers/net/ethernet/intel/i40e/i40e_txrx.h |   1 -
 2 files changed, 122 insertions(+), 99 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index e8db4dca6e85..e96de7567856 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -189,27 +189,30 @@ static void i40e_fd_handle_status(struct i40e_ring *rx_ring, u32 qw, u8 prog_id)
 }
 
 /**
- * i40e_unmap_tx_resource - Release a Tx buffer
+ * i40e_unmap_and_free_tx_resource - Release a Tx buffer
  * @ring:      the ring that owns the buffer
  * @tx_buffer: the buffer to free
  **/
-static inline void i40e_unmap_tx_resource(struct i40e_ring *ring,
-					  struct i40e_tx_buffer *tx_buffer)
+static void i40e_unmap_and_free_tx_resource(struct i40e_ring *ring,
+					    struct i40e_tx_buffer *tx_buffer)
 {
-	if (dma_unmap_len(tx_buffer, len)) {
-		if (tx_buffer->tx_flags & I40E_TX_FLAGS_MAPPED_AS_PAGE)
-			dma_unmap_page(ring->dev,
-				       dma_unmap_addr(tx_buffer, dma),
-				       dma_unmap_len(tx_buffer, len),
-				       DMA_TO_DEVICE);
-		else
+	if (tx_buffer->skb) {
+		dev_kfree_skb_any(tx_buffer->skb);
+		if (dma_unmap_len(tx_buffer, len))
 			dma_unmap_single(ring->dev,
 					 dma_unmap_addr(tx_buffer, dma),
 					 dma_unmap_len(tx_buffer, len),
 					 DMA_TO_DEVICE);
+	} else if (dma_unmap_len(tx_buffer, len)) {
+		dma_unmap_page(ring->dev,
+			       dma_unmap_addr(tx_buffer, dma),
+			       dma_unmap_len(tx_buffer, len),
+			       DMA_TO_DEVICE);
 	}
-	tx_buffer->time_stamp = 0;
+	tx_buffer->next_to_watch = NULL;
+	tx_buffer->skb = NULL;
 	dma_unmap_len_set(tx_buffer, len, 0);
+	/* tx_buffer must be completely set up in the transmit path */
 }
 
 /**
@@ -218,7 +221,6 @@ static inline void i40e_unmap_tx_resource(struct i40e_ring *ring,
  **/
 void i40e_clean_tx_ring(struct i40e_ring *tx_ring)
 {
-	struct i40e_tx_buffer *tx_buffer;
 	unsigned long bi_size;
 	u16 i;
 
@@ -227,13 +229,8 @@ void i40e_clean_tx_ring(struct i40e_ring *tx_ring)
 		return;
 
 	/* Free all the Tx ring sk_buffs */
-	for (i = 0; i < tx_ring->count; i++) {
-		tx_buffer = &tx_ring->tx_bi[i];
-		i40e_unmap_tx_resource(tx_ring, tx_buffer);
-		if (tx_buffer->skb)
-			dev_kfree_skb_any(tx_buffer->skb);
-		tx_buffer->skb = NULL;
-	}
+	for (i = 0; i < tx_ring->count; i++)
+		i40e_unmap_and_free_tx_resource(tx_ring, &tx_ring->tx_bi[i]);
 
 	bi_size = sizeof(struct i40e_tx_buffer) * tx_ring->count;
 	memset(tx_ring->tx_bi, 0, bi_size);
@@ -332,16 +329,18 @@ static bool i40e_clean_tx_irq(struct i40e_ring *tx_ring, int budget)
 
 	tx_buf = &tx_ring->tx_bi[i];
 	tx_desc = I40E_TX_DESC(tx_ring, i);
+	i -= tx_ring->count;
 
-	for (; budget; budget--) {
-		struct i40e_tx_desc *eop_desc;
-
-		eop_desc = tx_buf->next_to_watch;
+	do {
+		struct i40e_tx_desc *eop_desc = tx_buf->next_to_watch;
 
 		/* if next_to_watch is not set then there is no work pending */
 		if (!eop_desc)
 			break;
 
+		/* prevent any other reads prior to eop_desc */
+		read_barrier_depends();
+
 		/* if the descriptor isn't done, no work yet to do */
 		if (!(eop_desc->cmd_type_offset_bsz &
 		      cpu_to_le64(I40E_TX_DESC_DTYPE_DESC_DONE)))
@@ -349,44 +348,67 @@ static bool i40e_clean_tx_irq(struct i40e_ring *tx_ring, int budget)
 
 		/* clear next_to_watch to prevent false hangs */
 		tx_buf->next_to_watch = NULL;
-		tx_buf->time_stamp = 0;
 
-		/* set memory barrier before eop_desc is verified */
-		rmb();
+		/* update the statistics for this packet */
+		total_bytes += tx_buf->bytecount;
+		total_packets += tx_buf->gso_segs;
 
-		do {
-			i40e_unmap_tx_resource(tx_ring, tx_buf);
+		/* free the skb */
+		dev_kfree_skb_any(tx_buf->skb);
 
-			/* clear dtype status */
-			tx_desc->cmd_type_offset_bsz &=
-				~cpu_to_le64(I40E_TXD_QW1_DTYPE_MASK);
+		/* unmap skb header data */
+		dma_unmap_single(tx_ring->dev,
+				 dma_unmap_addr(tx_buf, dma),
+				 dma_unmap_len(tx_buf, len),
+				 DMA_TO_DEVICE);
 
-			if (likely(tx_desc == eop_desc)) {
-				eop_desc = NULL;
+		/* clear tx_buffer data */
+		tx_buf->skb = NULL;
+		dma_unmap_len_set(tx_buf, len, 0);
 
-				dev_kfree_skb_any(tx_buf->skb);
-				tx_buf->skb = NULL;
-
-				total_bytes += tx_buf->bytecount;
-				total_packets += tx_buf->gso_segs;
-			}
+		/* unmap remaining buffers */
+		while (tx_desc != eop_desc) {
 
 			tx_buf++;
 			tx_desc++;
 			i++;
-			if (unlikely(i == tx_ring->count)) {
-				i = 0;
+			if (unlikely(!i)) {
+				i -= tx_ring->count;
 				tx_buf = tx_ring->tx_bi;
 				tx_desc = I40E_TX_DESC(tx_ring, 0);
 			}
-		} while (eop_desc);
-	}
 
+			/* unmap any remaining paged data */
+			if (dma_unmap_len(tx_buf, len)) {
+				dma_unmap_page(tx_ring->dev,
+					       dma_unmap_addr(tx_buf, dma),
+					       dma_unmap_len(tx_buf, len),
+					       DMA_TO_DEVICE);
+				dma_unmap_len_set(tx_buf, len, 0);
+			}
+		}
+
+		/* move us one more past the eop_desc for start of next pkt */
+		tx_buf++;
+		tx_desc++;
+		i++;
+		if (unlikely(!i)) {
+			i -= tx_ring->count;
+			tx_buf = tx_ring->tx_bi;
+			tx_desc = I40E_TX_DESC(tx_ring, 0);
+		}
+
+		/* update budget accounting */
+		budget--;
+	} while (likely(budget));
+
+	i += tx_ring->count;
 	tx_ring->next_to_clean = i;
 	tx_ring->tx_stats.bytes += total_bytes;
 	tx_ring->tx_stats.packets += total_packets;
 	tx_ring->q_vector->tx.total_bytes += total_bytes;
 	tx_ring->q_vector->tx.total_packets += total_packets;
+
 	if (check_for_tx_hang(tx_ring) && i40e_check_tx_hang(tx_ring)) {
 		/* schedule immediate reset if we believe we hung */
 		dev_info(tx_ring->dev, "Detected Tx Unit Hang\n"
@@ -1515,68 +1537,71 @@ static void i40e_tx_map(struct i40e_ring *tx_ring, struct sk_buff *skb,
 			struct i40e_tx_buffer *first, u32 tx_flags,
 			const u8 hdr_len, u32 td_cmd, u32 td_offset)
 {
-	struct skb_frag_struct *frag = &skb_shinfo(skb)->frags[0];
 	unsigned int data_len = skb->data_len;
 	unsigned int size = skb_headlen(skb);
-	struct device *dev = tx_ring->dev;
-	u32 paylen = skb->len - hdr_len;
-	u16 i = tx_ring->next_to_use;
+	struct skb_frag_struct *frag;
 	struct i40e_tx_buffer *tx_bi;
 	struct i40e_tx_desc *tx_desc;
-	u32 buf_offset = 0;
+	u16 i = tx_ring->next_to_use;
 	u32 td_tag = 0;
 	dma_addr_t dma;
 	u16 gso_segs;
 
-	dma = dma_map_single(dev, skb->data, size, DMA_TO_DEVICE);
-	if (dma_mapping_error(dev, dma))
-		goto dma_error;
-
 	if (tx_flags & I40E_TX_FLAGS_HW_VLAN) {
 		td_cmd |= I40E_TX_DESC_CMD_IL2TAG1;
 		td_tag = (tx_flags & I40E_TX_FLAGS_VLAN_MASK) >>
 			 I40E_TX_FLAGS_VLAN_SHIFT;
 	}
 
+	if (tx_flags & (I40E_TX_FLAGS_TSO | I40E_TX_FLAGS_FSO))
+		gso_segs = skb_shinfo(skb)->gso_segs;
+	else
+		gso_segs = 1;
+
+	/* multiply data chunks by size of headers */
+	first->bytecount = skb->len - hdr_len + (gso_segs * hdr_len);
+	first->gso_segs = gso_segs;
+	first->skb = skb;
+	first->tx_flags = tx_flags;
+
+	dma = dma_map_single(tx_ring->dev, skb->data, size, DMA_TO_DEVICE);
+
 	tx_desc = I40E_TX_DESC(tx_ring, i);
-	for (;;) {
-		while (size > I40E_MAX_DATA_PER_TXD) {
-			tx_desc->buffer_addr = cpu_to_le64(dma + buf_offset);
+	tx_bi = first;
+
+	for (frag = &skb_shinfo(skb)->frags[0];; frag++) {
+		if (dma_mapping_error(tx_ring->dev, dma))
+			goto dma_error;
+
+		/* record length, and DMA address */
+		dma_unmap_len_set(tx_bi, len, size);
+		dma_unmap_addr_set(tx_bi, dma, dma);
+
+		tx_desc->buffer_addr = cpu_to_le64(dma);
+
+		while (unlikely(size > I40E_MAX_DATA_PER_TXD)) {
 			tx_desc->cmd_type_offset_bsz =
 				build_ctob(td_cmd, td_offset,
 					   I40E_MAX_DATA_PER_TXD, td_tag);
 
-			buf_offset += I40E_MAX_DATA_PER_TXD;
-			size -= I40E_MAX_DATA_PER_TXD;
-
 			tx_desc++;
 			i++;
 			if (i == tx_ring->count) {
 				tx_desc = I40E_TX_DESC(tx_ring, 0);
 				i = 0;
 			}
-		}
 
-		tx_bi = &tx_ring->tx_bi[i];
-		dma_unmap_len_set(tx_bi, len, buf_offset + size);
-		dma_unmap_addr_set(tx_bi, dma, dma);
-		tx_bi->tx_flags = tx_flags;
+			dma += I40E_MAX_DATA_PER_TXD;
+			size -= I40E_MAX_DATA_PER_TXD;
 
-		tx_desc->buffer_addr = cpu_to_le64(dma + buf_offset);
-		tx_desc->cmd_type_offset_bsz = build_ctob(td_cmd, td_offset,
-							  size, td_tag);
+			tx_desc->buffer_addr = cpu_to_le64(dma);
+		}
 
 		if (likely(!data_len))
 			break;
 
-		size = skb_frag_size(frag);
-		data_len -= size;
-		buf_offset = 0;
-		tx_flags |= I40E_TX_FLAGS_MAPPED_AS_PAGE;
-
-		dma = skb_frag_dma_map(dev, frag, 0, size, DMA_TO_DEVICE);
-		if (dma_mapping_error(dev, dma))
-			goto dma_error;
+		tx_desc->cmd_type_offset_bsz = build_ctob(td_cmd, td_offset,
+							  size, td_tag);
 
 		tx_desc++;
 		i++;
@@ -1585,31 +1610,21 @@ static void i40e_tx_map(struct i40e_ring *tx_ring, struct sk_buff *skb,
 			i = 0;
 		}
 
-		frag++;
-	}
-
-	tx_desc->cmd_type_offset_bsz |=
-		       cpu_to_le64((u64)I40E_TXD_CMD << I40E_TXD_QW1_CMD_SHIFT);
-
-	i++;
-	if (i == tx_ring->count)
-		i = 0;
+		size = skb_frag_size(frag);
+		data_len -= size;
 
-	tx_ring->next_to_use = i;
+		dma = skb_frag_dma_map(tx_ring->dev, frag, 0, size,
+				       DMA_TO_DEVICE);
 
-	if (tx_flags & (I40E_TX_FLAGS_TSO | I40E_TX_FLAGS_FSO))
-		gso_segs = skb_shinfo(skb)->gso_segs;
-	else
-		gso_segs = 1;
+		tx_bi = &tx_ring->tx_bi[i];
+	}
 
-	/* multiply data chunks by size of headers */
-	tx_bi->bytecount = paylen + (gso_segs * hdr_len);
-	tx_bi->gso_segs = gso_segs;
-	tx_bi->skb = skb;
+	tx_desc->cmd_type_offset_bsz =
+		build_ctob(td_cmd, td_offset, size, td_tag) |
+		cpu_to_le64((u64)I40E_TXD_CMD << I40E_TXD_QW1_CMD_SHIFT);
 
-	/* set the timestamp and next to watch values */
+	/* set the timestamp */
 	first->time_stamp = jiffies;
-	first->next_to_watch = tx_desc;
 
 	/* Force memory writes to complete before letting h/w
 	 * know there are new descriptors to fetch.  (Only
@@ -1618,16 +1633,27 @@ static void i40e_tx_map(struct i40e_ring *tx_ring, struct sk_buff *skb,
 	 */
 	wmb();
 
+	/* set next_to_watch value indicating a packet is present */
+	first->next_to_watch = tx_desc;
+
+	i++;
+	if (i == tx_ring->count)
+		i = 0;
+
+	tx_ring->next_to_use = i;
+
+	/* notify HW of packet */
 	writel(i, tx_ring->tail);
+
 	return;
 
 dma_error:
-	dev_info(dev, "TX DMA map failed\n");
+	dev_info(tx_ring->dev, "TX DMA map failed\n");
 
 	/* clear dma mappings for failed tx_bi map */
 	for (;;) {
 		tx_bi = &tx_ring->tx_bi[i];
-		i40e_unmap_tx_resource(tx_ring, tx_bi);
+		i40e_unmap_and_free_tx_resource(tx_ring, tx_bi);
 		if (tx_bi == first)
 			break;
 		if (i == 0)
@@ -1635,8 +1661,6 @@ dma_error:
 		i--;
 	}
 
-	dev_kfree_skb_any(skb);
-
 	tx_ring->next_to_use = i;
 }
 
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
index 711f54938489..2cb1338fb794 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
@@ -103,7 +103,6 @@
 #define I40E_TX_FLAGS_FCCRC		(u32)(1 << 6)
 #define I40E_TX_FLAGS_FSO		(u32)(1 << 7)
 #define I40E_TX_FLAGS_TXSW		(u32)(1 << 8)
-#define I40E_TX_FLAGS_MAPPED_AS_PAGE	(u32)(1 << 9)
 #define I40E_TX_FLAGS_VLAN_MASK		0xffff0000
 #define I40E_TX_FLAGS_VLAN_PRIO_MASK	0xe0000000
 #define I40E_TX_FLAGS_VLAN_PRIO_SHIFT	29
-- 
cgit 


From b194130627580519e63665660db055bfe82b6949 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Sat, 28 Sep 2013 06:00:32 +0000
Subject: i40e: Drop dead code and flags from Tx hotpath

Drop Tx flag and TXSW which is tested but never set.

As a result of this change we can drop a complicated check that always
resulted in the final result of i40e_tx_csum being equal to the
CHECKSUM_PARTIAL value.  As such we can replace the entire function call
with just a check for skb->summed == CHECKSUM_PARTIAL.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_txrx.c | 31 +++++------------------------
 drivers/net/ethernet/intel/i40e/i40e_txrx.h |  1 -
 2 files changed, 5 insertions(+), 27 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index e96de7567856..52dfac206f75 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -1299,27 +1299,6 @@ static int i40e_tx_prepare_vlan_flags(struct sk_buff *skb,
 	return 0;
 }
 
-/**
- * i40e_tx_csum - is checksum offload requested
- * @tx_ring:  ptr to the ring to send
- * @skb:      ptr to the skb we're sending
- * @tx_flags: the collected send information
- * @protocol: the send protocol
- *
- * Returns true if checksum offload is requested
- **/
-static bool i40e_tx_csum(struct i40e_ring *tx_ring, struct sk_buff *skb,
-			 u32 tx_flags, __be16 protocol)
-{
-	if ((skb->ip_summed != CHECKSUM_PARTIAL) &&
-	    !(tx_flags & I40E_TX_FLAGS_TXSW)) {
-		if (!(tx_flags & I40E_TX_FLAGS_HW_VLAN))
-			return false;
-	}
-
-	return skb->ip_summed == CHECKSUM_PARTIAL;
-}
-
 /**
  * i40e_tso - set up the tso context descriptor
  * @tx_ring:  ptr to the ring to send
@@ -1785,16 +1764,16 @@ static netdev_tx_t i40e_xmit_frame_ring(struct sk_buff *skb,
 
 	skb_tx_timestamp(skb);
 
+	/* always enable CRC insertion offload */
+	td_cmd |= I40E_TX_DESC_CMD_ICRC;
+
 	/* Always offload the checksum, since it's in the data descriptor */
-	if (i40e_tx_csum(tx_ring, skb, tx_flags, protocol))
+	if (skb->ip_summed == CHECKSUM_PARTIAL) {
 		tx_flags |= I40E_TX_FLAGS_CSUM;
 
-	/* always enable offload insertion */
-	td_cmd |= I40E_TX_DESC_CMD_ICRC;
-
-	if (tx_flags & I40E_TX_FLAGS_CSUM)
 		i40e_tx_enable_csum(skb, tx_flags, &td_cmd, &td_offset,
 				    tx_ring, &cd_tunneling);
+	}
 
 	i40e_create_tx_ctx(tx_ring, cd_type_cmd_tso_mss,
 			   cd_tunneling, cd_l2tag2);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
index 2cb1338fb794..e5142476a7f0 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
@@ -102,7 +102,6 @@
 #define I40E_TX_FLAGS_IPV6		(u32)(1 << 5)
 #define I40E_TX_FLAGS_FCCRC		(u32)(1 << 6)
 #define I40E_TX_FLAGS_FSO		(u32)(1 << 7)
-#define I40E_TX_FLAGS_TXSW		(u32)(1 << 8)
 #define I40E_TX_FLAGS_VLAN_MASK		0xffff0000
 #define I40E_TX_FLAGS_VLAN_PRIO_MASK	0xe0000000
 #define I40E_TX_FLAGS_VLAN_PRIO_SHIFT	29
-- 
cgit 


From 7070ce0a6419a118842298bc967061ad6cea40db Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Sat, 28 Sep 2013 06:00:37 +0000
Subject: i40e: Add support for Tx byte queue limits

Implement BQL (byte queue limit) support in i40e.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_txrx.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 52dfac206f75..ad2818f26821 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -240,6 +240,13 @@ void i40e_clean_tx_ring(struct i40e_ring *tx_ring)
 
 	tx_ring->next_to_use = 0;
 	tx_ring->next_to_clean = 0;
+
+	if (!tx_ring->netdev)
+		return;
+
+	/* cleanup Tx queue statistics */
+	netdev_tx_reset_queue(netdev_get_tx_queue(tx_ring->netdev,
+						  tx_ring->queue_index));
 }
 
 /**
@@ -436,6 +443,10 @@ static bool i40e_clean_tx_irq(struct i40e_ring *tx_ring, int budget)
 		return true;
 	}
 
+	netdev_tx_completed_queue(netdev_get_tx_queue(tx_ring->netdev,
+						      tx_ring->queue_index),
+				  total_packets, total_bytes);
+
 #define TX_WAKE_THRESHOLD (DESC_NEEDED * 2)
 	if (unlikely(total_packets && netif_carrier_ok(tx_ring->netdev) &&
 		     (I40E_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD))) {
@@ -1602,6 +1613,10 @@ static void i40e_tx_map(struct i40e_ring *tx_ring, struct sk_buff *skb,
 		build_ctob(td_cmd, td_offset, size, td_tag) |
 		cpu_to_le64((u64)I40E_TXD_CMD << I40E_TXD_QW1_CMD_SHIFT);
 
+	netdev_tx_sent_queue(netdev_get_tx_queue(tx_ring->netdev,
+						 tx_ring->queue_index),
+			     first->bytecount);
+
 	/* set the timestamp */
 	first->time_stamp = jiffies;
 
-- 
cgit 


From a114d0a6aca7f96f46be93539665dbb28bdf1a73 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Sat, 28 Sep 2013 06:00:43 +0000
Subject: i40e: Split bytes and packets from Rx/Tx stats

This makes it so that the Tx and Rx byte and packet counts are
separated from the rest of the statistics.  This allows for better
isolation of these stats when we move them into the 64 bit statistics.

Simplify things by re-ordering how the stats display in ethtool.
Instead of displaying all of the Tx queues as a block, followed by all
the Rx queues, the new order is Tx[0], Rx[0], Tx[1], Rx[1], ..., Tx[n],
Rx[n].  This reduces the loops and cleans up the display for testing
purposes since it is very easy to verify if flow director is doing the
right thing as the Tx and Rx queue pair are shown in pairs.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c |  8 ++++----
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 14 +++++---------
 drivers/net/ethernet/intel/i40e/i40e_main.c    | 12 ++++++++----
 drivers/net/ethernet/intel/i40e/i40e_txrx.c    | 12 ++++++------
 drivers/net/ethernet/intel/i40e/i40e_txrx.h    |  8 +++++---
 5 files changed, 28 insertions(+), 26 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 0b01c61f70c2..2b6655bf1f3d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -512,8 +512,8 @@ static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
 				 vsi->rx_rings[i].ring_active);
 			dev_info(&pf->pdev->dev,
 				 "    rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
-				 i, vsi->rx_rings[i].rx_stats.packets,
-				 vsi->rx_rings[i].rx_stats.bytes,
+				 i, vsi->rx_rings[i].stats.packets,
+				 vsi->rx_rings[i].stats.bytes,
 				 vsi->rx_rings[i].rx_stats.non_eop_descs);
 			dev_info(&pf->pdev->dev,
 				 "    rx_rings[%i]: rx_stats: alloc_rx_page_failed = %lld, alloc_rx_buff_failed = %lld\n",
@@ -556,8 +556,8 @@ static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
 				 vsi->tx_rings[i].ring_active);
 			dev_info(&pf->pdev->dev,
 				 "    tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
-				 i, vsi->tx_rings[i].tx_stats.packets,
-				 vsi->tx_rings[i].tx_stats.bytes,
+				 i, vsi->tx_rings[i].stats.packets,
+				 vsi->tx_rings[i].stats.bytes,
 				 vsi->tx_rings[i].tx_stats.restart_queue);
 			dev_info(&pf->pdev->dev,
 				 "    tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 9a76b8cec76c..8754c6fa6324 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -587,13 +587,11 @@ static void i40e_get_ethtool_stats(struct net_device *netdev,
 		data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat ==
 			sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 	}
-	for (j = 0; j < vsi->num_queue_pairs; j++) {
-		data[i++] = vsi->tx_rings[j].tx_stats.packets;
-		data[i++] = vsi->tx_rings[j].tx_stats.bytes;
-	}
-	for (j = 0; j < vsi->num_queue_pairs; j++) {
-		data[i++] = vsi->rx_rings[j].rx_stats.packets;
-		data[i++] = vsi->rx_rings[j].rx_stats.bytes;
+	for (j = 0; j < vsi->num_queue_pairs; j++, i += 4) {
+		data[i] = vsi->tx_rings[j].stats.packets;
+		data[i + 1] = vsi->tx_rings[j].stats.bytes;
+		data[i + 2] = vsi->rx_rings[j].stats.packets;
+		data[i + 3] = vsi->rx_rings[j].stats.bytes;
 	}
 	if (vsi == pf->vsi[pf->lan_vsi]) {
 		for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) {
@@ -641,8 +639,6 @@ static void i40e_get_strings(struct net_device *netdev, u32 stringset,
 			p += ETH_GSTRING_LEN;
 			snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_bytes", i);
 			p += ETH_GSTRING_LEN;
-		}
-		for (i = 0; i < vsi->num_queue_pairs; i++) {
 			snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_packets", i);
 			p += ETH_GSTRING_LEN;
 			snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_bytes", i);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 657babe82c9c..d1b5bae15ea8 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -376,8 +376,12 @@ void i40e_vsi_reset_stats(struct i40e_vsi *vsi)
 	memset(&vsi->eth_stats_offsets, 0, sizeof(vsi->eth_stats_offsets));
 	if (vsi->rx_rings)
 		for (i = 0; i < vsi->num_queue_pairs; i++) {
+			memset(&vsi->rx_rings[i].stats, 0 ,
+			       sizeof(vsi->rx_rings[i].stats));
 			memset(&vsi->rx_rings[i].rx_stats, 0 ,
 			       sizeof(vsi->rx_rings[i].rx_stats));
+			memset(&vsi->tx_rings[i].stats, 0 ,
+			       sizeof(vsi->tx_rings[i].stats));
 			memset(&vsi->tx_rings[i].tx_stats, 0,
 			       sizeof(vsi->tx_rings[i].tx_stats));
 		}
@@ -708,14 +712,14 @@ void i40e_update_stats(struct i40e_vsi *vsi)
 		struct i40e_ring *p;
 
 		p = &vsi->rx_rings[q];
-		rx_b += p->rx_stats.bytes;
-		rx_p += p->rx_stats.packets;
+		rx_b += p->stats.bytes;
+		rx_p += p->stats.packets;
 		rx_buf += p->rx_stats.alloc_rx_buff_failed;
 		rx_page += p->rx_stats.alloc_rx_page_failed;
 
 		p = &vsi->tx_rings[q];
-		tx_b += p->tx_stats.bytes;
-		tx_p += p->tx_stats.packets;
+		tx_b += p->stats.bytes;
+		tx_p += p->stats.packets;
 		tx_restart += p->tx_stats.restart_queue;
 		tx_busy += p->tx_stats.tx_busy;
 	}
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index ad2818f26821..3e73bc093737 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -305,14 +305,14 @@ static bool i40e_check_tx_hang(struct i40e_ring *tx_ring)
 	 * run the check_tx_hang logic with a transmit completion
 	 * pending but without time to complete it yet.
 	 */
-	if ((tx_ring->tx_stats.tx_done_old == tx_ring->tx_stats.packets) &&
+	if ((tx_ring->tx_stats.tx_done_old == tx_ring->stats.packets) &&
 	    tx_pending) {
 		/* make sure it is true for two checks in a row */
 		ret = test_and_set_bit(__I40E_HANG_CHECK_ARMED,
 				       &tx_ring->state);
 	} else {
 		/* update completed stats and disarm the hang check */
-		tx_ring->tx_stats.tx_done_old = tx_ring->tx_stats.packets;
+		tx_ring->tx_stats.tx_done_old = tx_ring->stats.packets;
 		clear_bit(__I40E_HANG_CHECK_ARMED, &tx_ring->state);
 	}
 
@@ -411,8 +411,8 @@ static bool i40e_clean_tx_irq(struct i40e_ring *tx_ring, int budget)
 
 	i += tx_ring->count;
 	tx_ring->next_to_clean = i;
-	tx_ring->tx_stats.bytes += total_bytes;
-	tx_ring->tx_stats.packets += total_packets;
+	tx_ring->stats.bytes += total_bytes;
+	tx_ring->stats.packets += total_packets;
 	tx_ring->q_vector->tx.total_bytes += total_bytes;
 	tx_ring->q_vector->tx.total_packets += total_packets;
 
@@ -1075,8 +1075,8 @@ next_desc:
 	}
 
 	rx_ring->next_to_clean = i;
-	rx_ring->rx_stats.packets += total_rx_packets;
-	rx_ring->rx_stats.bytes += total_rx_bytes;
+	rx_ring->stats.packets += total_rx_packets;
+	rx_ring->stats.bytes += total_rx_bytes;
 	rx_ring->q_vector->rx.total_packets += total_rx_packets;
 	rx_ring->q_vector->rx.total_bytes += total_rx_bytes;
 
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
index e5142476a7f0..7f3f7e3e4238 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
@@ -126,17 +126,18 @@ struct i40e_rx_buffer {
 	unsigned int page_offset;
 };
 
-struct i40e_tx_queue_stats {
+struct i40e_queue_stats {
 	u64 packets;
 	u64 bytes;
+};
+
+struct i40e_tx_queue_stats {
 	u64 restart_queue;
 	u64 tx_busy;
 	u64 tx_done_old;
 };
 
 struct i40e_rx_queue_stats {
-	u64 packets;
-	u64 bytes;
 	u64 non_eop_descs;
 	u64 alloc_rx_page_failed;
 	u64 alloc_rx_buff_failed;
@@ -215,6 +216,7 @@ struct i40e_ring {
 	bool ring_active;		/* is ring online or not */
 
 	/* stats structs */
+	struct i40e_queue_stats	stats;
 	union {
 		struct i40e_tx_queue_stats tx_stats;
 		struct i40e_rx_queue_stats rx_stats;
-- 
cgit 


From 493fb30011b3ab5173cef96f1d1ce126da051792 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Sat, 28 Sep 2013 07:01:44 +0000
Subject: i40e: Move q_vectors from pointer to array to array of pointers

Allocate the q_vectors individually. The advantage to this is that it
allows for easier freeing and allocation.  In addition it makes it so
that we could do node specific allocations at some point in the future.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e.h         |   5 +-
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c |  11 +-
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c |   4 +-
 drivers/net/ethernet/intel/i40e/i40e_main.c    | 152 +++++++++++++++++--------
 4 files changed, 112 insertions(+), 60 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index b5252eb8a6c7..789304e43a0e 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -366,7 +366,7 @@ struct i40e_vsi {
 	u8  dtype;
 
 	/* List of q_vectors allocated to this VSI */
-	struct i40e_q_vector *q_vectors;
+	struct i40e_q_vector **q_vectors;
 	int num_q_vectors;
 	int base_vector;
 
@@ -422,8 +422,9 @@ struct i40e_q_vector {
 
 	u8 num_ringpairs;	/* total number of ring pairs in vector */
 
-	char name[IFNAMSIZ + 9];
 	cpumask_t affinity_mask;
+	struct rcu_head rcu;	/* to avoid race with update stats on free */
+	char name[IFNAMSIZ + 9];
 } ____cacheline_internodealigned_in_smp;
 
 /* lan device */
diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 2b6655bf1f3d..44e3fa43af61 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -586,15 +586,6 @@ static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
 	dev_info(&pf->pdev->dev,
 		 "    max_frame = %d, rx_hdr_len = %d, rx_buf_len = %d dtype = %d\n",
 		 vsi->max_frame, vsi->rx_hdr_len, vsi->rx_buf_len, vsi->dtype);
-	if (vsi->q_vectors) {
-		for (i = 0; i < vsi->num_q_vectors; i++) {
-			dev_info(&pf->pdev->dev,
-				 "    q_vectors[%i]: base index = %ld\n",
-				 i, ((long int)*vsi->q_vectors[i].rx.ring-
-					(long int)*vsi->q_vectors[0].rx.ring)/
-					sizeof(struct i40e_ring));
-		}
-	}
 	dev_info(&pf->pdev->dev,
 		 "    num_q_vectors = %i, base_vector = %i\n",
 		 vsi->num_q_vectors, vsi->base_vector);
@@ -1995,7 +1986,7 @@ static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
 			goto netdev_ops_write_done;
 		}
 		for (i = 0; i < vsi->num_q_vectors; i++)
-			napi_schedule(&vsi->q_vectors[i].napi);
+			napi_schedule(&vsi->q_vectors[i]->napi);
 		dev_info(&pf->pdev->dev, "napi called\n");
 	} else {
 		dev_info(&pf->pdev->dev, "unknown command '%s'\n",
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 8754c6fa6324..bf607dabe236 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -906,8 +906,8 @@ static int i40e_set_coalesce(struct net_device *netdev,
 	}
 
 	vector = vsi->base_vector;
-	q_vector = vsi->q_vectors;
-	for (i = 0; i < vsi->num_q_vectors; i++, vector++, q_vector++) {
+	for (i = 0; i < vsi->num_q_vectors; i++, vector++) {
+		q_vector = vsi->q_vectors[i];
 		q_vector->rx.itr = ITR_TO_REG(vsi->rx_itr_setting);
 		wr32(hw, I40E_PFINT_ITRN(0, vector - 1), q_vector->rx.itr);
 		q_vector->tx.itr = ITR_TO_REG(vsi->tx_itr_setting);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index d1b5bae15ea8..a090815a6dd9 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -2358,8 +2358,8 @@ static void i40e_vsi_configure_msix(struct i40e_vsi *vsi)
 	 */
 	qp = vsi->base_queue;
 	vector = vsi->base_vector;
-	q_vector = vsi->q_vectors;
-	for (i = 0; i < vsi->num_q_vectors; i++, q_vector++, vector++) {
+	for (i = 0; i < vsi->num_q_vectors; i++, vector++) {
+		q_vector = vsi->q_vectors[i];
 		q_vector->rx.itr = ITR_TO_REG(vsi->rx_itr_setting);
 		q_vector->rx.latency_range = I40E_LOW_LATENCY;
 		wr32(hw, I40E_PFINT_ITRN(I40E_RX_ITR, vector - 1),
@@ -2439,7 +2439,7 @@ static void i40e_enable_misc_int_causes(struct i40e_hw *hw)
  **/
 static void i40e_configure_msi_and_legacy(struct i40e_vsi *vsi)
 {
-	struct i40e_q_vector *q_vector = vsi->q_vectors;
+	struct i40e_q_vector *q_vector = vsi->q_vectors[0];
 	struct i40e_pf *pf = vsi->back;
 	struct i40e_hw *hw = &pf->hw;
 	u32 val;
@@ -2558,7 +2558,7 @@ static int i40e_vsi_request_irq_msix(struct i40e_vsi *vsi, char *basename)
 	int vector, err;
 
 	for (vector = 0; vector < q_vectors; vector++) {
-		struct i40e_q_vector *q_vector = &(vsi->q_vectors[vector]);
+		struct i40e_q_vector *q_vector = vsi->q_vectors[vector];
 
 		if (q_vector->tx.ring[0] && q_vector->rx.ring[0]) {
 			snprintf(q_vector->name, sizeof(q_vector->name) - 1,
@@ -2709,7 +2709,7 @@ static irqreturn_t i40e_intr(int irq, void *data)
 		i40e_flush(hw);
 
 		if (!test_bit(__I40E_DOWN, &pf->state))
-			napi_schedule(&pf->vsi[pf->lan_vsi]->q_vectors[0].napi);
+			napi_schedule(&pf->vsi[pf->lan_vsi]->q_vectors[0]->napi);
 	}
 
 	if (icr0 & I40E_PFINT_ICR0_ADMINQ_MASK) {
@@ -2785,7 +2785,7 @@ static irqreturn_t i40e_intr(int irq, void *data)
  **/
 static void map_vector_to_rxq(struct i40e_vsi *vsi, int v_idx, int r_idx)
 {
-	struct i40e_q_vector *q_vector = &(vsi->q_vectors[v_idx]);
+	struct i40e_q_vector *q_vector = vsi->q_vectors[v_idx];
 	struct i40e_ring *rx_ring = &(vsi->rx_rings[r_idx]);
 
 	rx_ring->q_vector = q_vector;
@@ -2803,7 +2803,7 @@ static void map_vector_to_rxq(struct i40e_vsi *vsi, int v_idx, int r_idx)
  **/
 static void map_vector_to_txq(struct i40e_vsi *vsi, int v_idx, int t_idx)
 {
-	struct i40e_q_vector *q_vector = &(vsi->q_vectors[v_idx]);
+	struct i40e_q_vector *q_vector = vsi->q_vectors[v_idx];
 	struct i40e_ring *tx_ring = &(vsi->tx_rings[t_idx]);
 
 	tx_ring->q_vector = q_vector;
@@ -2891,7 +2891,7 @@ static void i40e_netpoll(struct net_device *netdev)
 	pf->flags |= I40E_FLAG_IN_NETPOLL;
 	if (pf->flags & I40E_FLAG_MSIX_ENABLED) {
 		for (i = 0; i < vsi->num_q_vectors; i++)
-			i40e_msix_clean_rings(0, &vsi->q_vectors[i]);
+			i40e_msix_clean_rings(0, vsi->q_vectors[i]);
 	} else {
 		i40e_intr(pf->pdev->irq, netdev);
 	}
@@ -3077,14 +3077,14 @@ static void i40e_vsi_free_irq(struct i40e_vsi *vsi)
 			u16 vector = i + base;
 
 			/* free only the irqs that were actually requested */
-			if (vsi->q_vectors[i].num_ringpairs == 0)
+			if (vsi->q_vectors[i]->num_ringpairs == 0)
 				continue;
 
 			/* clear the affinity_mask in the IRQ descriptor */
 			irq_set_affinity_hint(pf->msix_entries[vector].vector,
 					      NULL);
 			free_irq(pf->msix_entries[vector].vector,
-				 &vsi->q_vectors[i]);
+				 vsi->q_vectors[i]);
 
 			/* Tear down the interrupt queue link list
 			 *
@@ -3167,6 +3167,38 @@ static void i40e_vsi_free_irq(struct i40e_vsi *vsi)
 	}
 }
 
+/**
+ * i40e_free_q_vector - Free memory allocated for specific interrupt vector
+ * @vsi: the VSI being configured
+ * @v_idx: Index of vector to be freed
+ *
+ * This function frees the memory allocated to the q_vector.  In addition if
+ * NAPI is enabled it will delete any references to the NAPI struct prior
+ * to freeing the q_vector.
+ **/
+static void i40e_free_q_vector(struct i40e_vsi *vsi, int v_idx)
+{
+	struct i40e_q_vector *q_vector = vsi->q_vectors[v_idx];
+	int r_idx;
+
+	if (!q_vector)
+		return;
+
+	/* disassociate q_vector from rings */
+	for (r_idx = 0; r_idx < q_vector->tx.count; r_idx++)
+		q_vector->tx.ring[r_idx]->q_vector = NULL;
+	for (r_idx = 0; r_idx < q_vector->rx.count; r_idx++)
+		q_vector->rx.ring[r_idx]->q_vector = NULL;
+
+	/* only VSI w/ an associated netdev is set up w/ NAPI */
+	if (vsi->netdev)
+		netif_napi_del(&q_vector->napi);
+
+	vsi->q_vectors[v_idx] = NULL;
+
+	kfree_rcu(q_vector, rcu);
+}
+
 /**
  * i40e_vsi_free_q_vectors - Free memory allocated for interrupt vectors
  * @vsi: the VSI being un-configured
@@ -3178,24 +3210,8 @@ static void i40e_vsi_free_q_vectors(struct i40e_vsi *vsi)
 {
 	int v_idx;
 
-	for (v_idx = 0; v_idx < vsi->num_q_vectors; v_idx++) {
-		struct i40e_q_vector *q_vector = &vsi->q_vectors[v_idx];
-		int r_idx;
-
-		if (!q_vector)
-			continue;
-
-		/* disassociate q_vector from rings */
-		for (r_idx = 0; r_idx < q_vector->tx.count; r_idx++)
-			q_vector->tx.ring[r_idx]->q_vector = NULL;
-		for (r_idx = 0; r_idx < q_vector->rx.count; r_idx++)
-			q_vector->rx.ring[r_idx]->q_vector = NULL;
-
-		/* only VSI w/ an associated netdev is set up w/ NAPI */
-		if (vsi->netdev)
-			netif_napi_del(&q_vector->napi);
-	}
-	kfree(vsi->q_vectors);
+	for (v_idx = 0; v_idx < vsi->num_q_vectors; v_idx++)
+		i40e_free_q_vector(vsi, v_idx);
 }
 
 /**
@@ -3245,7 +3261,7 @@ static void i40e_napi_enable_all(struct i40e_vsi *vsi)
 		return;
 
 	for (q_idx = 0; q_idx < vsi->num_q_vectors; q_idx++)
-		napi_enable(&vsi->q_vectors[q_idx].napi);
+		napi_enable(&vsi->q_vectors[q_idx]->napi);
 }
 
 /**
@@ -3260,7 +3276,7 @@ static void i40e_napi_disable_all(struct i40e_vsi *vsi)
 		return;
 
 	for (q_idx = 0; q_idx < vsi->num_q_vectors; q_idx++)
-		napi_disable(&vsi->q_vectors[q_idx].napi);
+		napi_disable(&vsi->q_vectors[q_idx]->napi);
 }
 
 /**
@@ -4945,6 +4961,7 @@ static int i40e_vsi_mem_alloc(struct i40e_pf *pf, enum i40e_vsi_type type)
 {
 	int ret = -ENODEV;
 	struct i40e_vsi *vsi;
+	int sz_vectors;
 	int vsi_idx;
 	int i;
 
@@ -4970,14 +4987,14 @@ static int i40e_vsi_mem_alloc(struct i40e_pf *pf, enum i40e_vsi_type type)
 		vsi_idx = i;             /* Found one! */
 	} else {
 		ret = -ENODEV;
-		goto err_alloc_vsi;  /* out of VSI slots! */
+		goto unlock_pf;  /* out of VSI slots! */
 	}
 	pf->next_vsi = ++i;
 
 	vsi = kzalloc(sizeof(*vsi), GFP_KERNEL);
 	if (!vsi) {
 		ret = -ENOMEM;
-		goto err_alloc_vsi;
+		goto unlock_pf;
 	}
 	vsi->type = type;
 	vsi->back = pf;
@@ -4992,12 +5009,25 @@ static int i40e_vsi_mem_alloc(struct i40e_pf *pf, enum i40e_vsi_type type)
 
 	i40e_set_num_rings_in_vsi(vsi);
 
+	/* allocate memory for q_vector pointers */
+	sz_vectors = sizeof(struct i40e_q_vectors *) * vsi->num_q_vectors;
+	vsi->q_vectors = kzalloc(sz_vectors, GFP_KERNEL);
+	if (!vsi->q_vectors) {
+		ret = -ENOMEM;
+		goto err_vectors;
+	}
+
 	/* Setup default MSIX irq handler for VSI */
 	i40e_vsi_setup_irqhandler(vsi, i40e_msix_clean_rings);
 
 	pf->vsi[vsi_idx] = vsi;
 	ret = vsi_idx;
-err_alloc_vsi:
+	goto unlock_pf;
+
+err_vectors:
+	pf->next_vsi = i - 1;
+	kfree(vsi);
+unlock_pf:
 	mutex_unlock(&pf->switch_mutex);
 	return ret;
 }
@@ -5038,6 +5068,9 @@ static int i40e_vsi_clear(struct i40e_vsi *vsi)
 	i40e_put_lump(pf->qp_pile, vsi->base_queue, vsi->idx);
 	i40e_put_lump(pf->irq_pile, vsi->base_vector, vsi->idx);
 
+	/* free the ring and vector containers */
+	kfree(vsi->q_vectors);
+
 	pf->vsi[vsi->idx] = NULL;
 	if (vsi->idx < pf->next_vsi)
 		pf->next_vsi = vsi->idx;
@@ -5256,6 +5289,35 @@ static int i40e_init_msix(struct i40e_pf *pf)
 	return err;
 }
 
+/**
+ * i40e_alloc_q_vector - Allocate memory for a single interrupt vector
+ * @vsi: the VSI being configured
+ * @v_idx: index of the vector in the vsi struct
+ *
+ * We allocate one q_vector.  If allocation fails we return -ENOMEM.
+ **/
+static int i40e_alloc_q_vector(struct i40e_vsi *vsi, int v_idx)
+{
+	struct i40e_q_vector *q_vector;
+
+	/* allocate q_vector */
+	q_vector = kzalloc(sizeof(struct i40e_q_vector), GFP_KERNEL);
+	if (!q_vector)
+		return -ENOMEM;
+
+	q_vector->vsi = vsi;
+	q_vector->v_idx = v_idx;
+	cpumask_set_cpu(v_idx, &q_vector->affinity_mask);
+	if (vsi->netdev)
+		netif_napi_add(vsi->netdev, &q_vector->napi,
+			       i40e_napi_poll, vsi->work_limit);
+
+	/* tie q_vector and vsi together */
+	vsi->q_vectors[v_idx] = q_vector;
+
+	return 0;
+}
+
 /**
  * i40e_alloc_q_vectors - Allocate memory for interrupt vectors
  * @vsi: the VSI being configured
@@ -5267,6 +5329,7 @@ static int i40e_alloc_q_vectors(struct i40e_vsi *vsi)
 {
 	struct i40e_pf *pf = vsi->back;
 	int v_idx, num_q_vectors;
+	int err;
 
 	/* if not MSIX, give the one vector only to the LAN VSI */
 	if (pf->flags & I40E_FLAG_MSIX_ENABLED)
@@ -5276,22 +5339,19 @@ static int i40e_alloc_q_vectors(struct i40e_vsi *vsi)
 	else
 		return -EINVAL;
 
-	vsi->q_vectors = kcalloc(num_q_vectors,
-				 sizeof(struct i40e_q_vector),
-				 GFP_KERNEL);
-	if (!vsi->q_vectors)
-		return -ENOMEM;
-
 	for (v_idx = 0; v_idx < num_q_vectors; v_idx++) {
-		vsi->q_vectors[v_idx].vsi = vsi;
-		vsi->q_vectors[v_idx].v_idx = v_idx;
-		cpumask_set_cpu(v_idx, &vsi->q_vectors[v_idx].affinity_mask);
-		if (vsi->netdev)
-			netif_napi_add(vsi->netdev, &vsi->q_vectors[v_idx].napi,
-				       i40e_napi_poll, vsi->work_limit);
+		err = i40e_alloc_q_vector(vsi, v_idx);
+		if (err)
+			goto err_out;
 	}
 
 	return 0;
+
+err_out:
+	while (v_idx--)
+		i40e_free_q_vector(vsi, v_idx);
+
+	return err;
 }
 
 /**
@@ -5958,7 +6018,7 @@ static int i40e_vsi_setup_vectors(struct i40e_vsi *vsi)
 	int ret = -ENOENT;
 	struct i40e_pf *pf = vsi->back;
 
-	if (vsi->q_vectors) {
+	if (vsi->q_vectors[0]) {
 		dev_info(&pf->pdev->dev, "VSI %d has existing q_vectors\n",
 			 vsi->seid);
 		return -EEXIST;
-- 
cgit 


From cd0b6fa65692a2bc150c3228008b812b1f45aed0 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Sat, 28 Sep 2013 06:00:53 +0000
Subject: i40e: Replace ring container array with linked list

This replaces the ring container array with a linked list.  The idea is
to make the logic much easier to deal with since this will allow us to
call a simple helper function from the q_vectors to go through the
entire list.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 84 ++++++++++++++---------------
 drivers/net/ethernet/intel/i40e/i40e_txrx.c | 19 +++----
 drivers/net/ethernet/intel/i40e/i40e_txrx.h |  8 ++-
 3 files changed, 58 insertions(+), 53 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index a090815a6dd9..c74ac585c639 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -2516,7 +2516,7 @@ static irqreturn_t i40e_msix_clean_rings(int irq, void *data)
 {
 	struct i40e_q_vector *q_vector = data;
 
-	if (!q_vector->tx.ring[0] && !q_vector->rx.ring[0])
+	if (!q_vector->tx.ring && !q_vector->rx.ring)
 		return IRQ_HANDLED;
 
 	napi_schedule(&q_vector->napi);
@@ -2533,7 +2533,7 @@ static irqreturn_t i40e_fdir_clean_rings(int irq, void *data)
 {
 	struct i40e_q_vector *q_vector = data;
 
-	if (!q_vector->tx.ring[0] && !q_vector->rx.ring[0])
+	if (!q_vector->tx.ring && !q_vector->rx.ring)
 		return IRQ_HANDLED;
 
 	pr_info("fdir ring cleaning needed\n");
@@ -2560,14 +2560,14 @@ static int i40e_vsi_request_irq_msix(struct i40e_vsi *vsi, char *basename)
 	for (vector = 0; vector < q_vectors; vector++) {
 		struct i40e_q_vector *q_vector = vsi->q_vectors[vector];
 
-		if (q_vector->tx.ring[0] && q_vector->rx.ring[0]) {
+		if (q_vector->tx.ring && q_vector->rx.ring) {
 			snprintf(q_vector->name, sizeof(q_vector->name) - 1,
 				 "%s-%s-%d", basename, "TxRx", rx_int_idx++);
 			tx_int_idx++;
-		} else if (q_vector->rx.ring[0]) {
+		} else if (q_vector->rx.ring) {
 			snprintf(q_vector->name, sizeof(q_vector->name) - 1,
 				 "%s-%s-%d", basename, "rx", rx_int_idx++);
-		} else if (q_vector->tx.ring[0]) {
+		} else if (q_vector->tx.ring) {
 			snprintf(q_vector->name, sizeof(q_vector->name) - 1,
 				 "%s-%s-%d", basename, "tx", tx_int_idx++);
 		} else {
@@ -2778,40 +2778,26 @@ static irqreturn_t i40e_intr(int irq, void *data)
 }
 
 /**
- * i40e_map_vector_to_rxq - Assigns the Rx queue to the vector
+ * i40e_map_vector_to_qp - Assigns the queue pair to the vector
  * @vsi: the VSI being configured
  * @v_idx: vector index
- * @r_idx: rx queue index
+ * @qp_idx: queue pair index
  **/
-static void map_vector_to_rxq(struct i40e_vsi *vsi, int v_idx, int r_idx)
+static void map_vector_to_qp(struct i40e_vsi *vsi, int v_idx, int qp_idx)
 {
 	struct i40e_q_vector *q_vector = vsi->q_vectors[v_idx];
-	struct i40e_ring *rx_ring = &(vsi->rx_rings[r_idx]);
-
-	rx_ring->q_vector = q_vector;
-	q_vector->rx.ring[q_vector->rx.count] = rx_ring;
-	q_vector->rx.count++;
-	q_vector->rx.latency_range = I40E_LOW_LATENCY;
-	q_vector->vsi = vsi;
-}
-
-/**
- * i40e_map_vector_to_txq - Assigns the Tx queue to the vector
- * @vsi: the VSI being configured
- * @v_idx: vector index
- * @t_idx: tx queue index
- **/
-static void map_vector_to_txq(struct i40e_vsi *vsi, int v_idx, int t_idx)
-{
-	struct i40e_q_vector *q_vector = vsi->q_vectors[v_idx];
-	struct i40e_ring *tx_ring = &(vsi->tx_rings[t_idx]);
+	struct i40e_ring *tx_ring = &(vsi->tx_rings[qp_idx]);
+	struct i40e_ring *rx_ring = &(vsi->rx_rings[qp_idx]);
 
 	tx_ring->q_vector = q_vector;
-	q_vector->tx.ring[q_vector->tx.count] = tx_ring;
+	tx_ring->next = q_vector->tx.ring;
+	q_vector->tx.ring = tx_ring;
 	q_vector->tx.count++;
-	q_vector->tx.latency_range = I40E_LOW_LATENCY;
-	q_vector->num_ringpairs++;
-	q_vector->vsi = vsi;
+
+	rx_ring->q_vector = q_vector;
+	rx_ring->next = q_vector->rx.ring;
+	q_vector->rx.ring = rx_ring;
+	q_vector->rx.count++;
 }
 
 /**
@@ -2827,7 +2813,7 @@ static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi *vsi)
 {
 	int qp_remaining = vsi->num_queue_pairs;
 	int q_vectors = vsi->num_q_vectors;
-	int qp_per_vector;
+	int num_ringpairs;
 	int v_start = 0;
 	int qp_idx = 0;
 
@@ -2835,11 +2821,21 @@ static void i40e_vsi_map_rings_to_vectors(struct i40e_vsi *vsi)
 	 * group them so there are multiple queues per vector.
 	 */
 	for (; v_start < q_vectors && qp_remaining; v_start++) {
-		qp_per_vector = DIV_ROUND_UP(qp_remaining, q_vectors - v_start);
-		for (; qp_per_vector;
-		     qp_per_vector--, qp_idx++, qp_remaining--)	{
-			map_vector_to_rxq(vsi, v_start, qp_idx);
-			map_vector_to_txq(vsi, v_start, qp_idx);
+		struct i40e_q_vector *q_vector = vsi->q_vectors[v_start];
+
+		num_ringpairs = DIV_ROUND_UP(qp_remaining, q_vectors - v_start);
+
+		q_vector->num_ringpairs = num_ringpairs;
+
+		q_vector->rx.count = 0;
+		q_vector->tx.count = 0;
+		q_vector->rx.ring = NULL;
+		q_vector->tx.ring = NULL;
+
+		while (num_ringpairs--) {
+			map_vector_to_qp(vsi, v_start, qp_idx);
+			qp_idx++;
+			qp_remaining--;
 		}
 	}
 }
@@ -3179,16 +3175,17 @@ static void i40e_vsi_free_irq(struct i40e_vsi *vsi)
 static void i40e_free_q_vector(struct i40e_vsi *vsi, int v_idx)
 {
 	struct i40e_q_vector *q_vector = vsi->q_vectors[v_idx];
-	int r_idx;
+	struct i40e_ring *ring;
 
 	if (!q_vector)
 		return;
 
 	/* disassociate q_vector from rings */
-	for (r_idx = 0; r_idx < q_vector->tx.count; r_idx++)
-		q_vector->tx.ring[r_idx]->q_vector = NULL;
-	for (r_idx = 0; r_idx < q_vector->rx.count; r_idx++)
-		q_vector->rx.ring[r_idx]->q_vector = NULL;
+	i40e_for_each_ring(ring, q_vector->tx)
+		ring->q_vector = NULL;
+
+	i40e_for_each_ring(ring, q_vector->rx)
+		ring->q_vector = NULL;
 
 	/* only VSI w/ an associated netdev is set up w/ NAPI */
 	if (vsi->netdev)
@@ -5312,6 +5309,9 @@ static int i40e_alloc_q_vector(struct i40e_vsi *vsi, int v_idx)
 		netif_napi_add(vsi->netdev, &q_vector->napi,
 			       i40e_napi_poll, vsi->work_limit);
 
+	q_vector->rx.latency_range = I40E_LOW_LATENCY;
+	q_vector->tx.latency_range = I40E_LOW_LATENCY;
+
 	/* tie q_vector and vsi together */
 	vsi->q_vectors[v_idx] = q_vector;
 
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 3e73bc093737..f153f3770346 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -1100,27 +1100,28 @@ int i40e_napi_poll(struct napi_struct *napi, int budget)
 	struct i40e_q_vector *q_vector =
 			       container_of(napi, struct i40e_q_vector, napi);
 	struct i40e_vsi *vsi = q_vector->vsi;
+	struct i40e_ring *ring;
 	bool clean_complete = true;
 	int budget_per_ring;
-	int i;
 
 	if (test_bit(__I40E_DOWN, &vsi->state)) {
 		napi_complete(napi);
 		return 0;
 	}
 
+	/* Since the actual Tx work is minimal, we can give the Tx a larger
+	 * budget and be more aggressive about cleaning up the Tx descriptors.
+	 */
+	i40e_for_each_ring(ring, q_vector->tx)
+		clean_complete &= i40e_clean_tx_irq(ring, vsi->work_limit);
+
 	/* We attempt to distribute budget to each Rx queue fairly, but don't
 	 * allow the budget to go below 1 because that would exit polling early.
-	 * Since the actual Tx work is minimal, we can give the Tx a larger
-	 * budget and be more aggressive about cleaning up the Tx descriptors.
 	 */
 	budget_per_ring = max(budget/q_vector->num_ringpairs, 1);
-	for (i = 0; i < q_vector->num_ringpairs; i++) {
-		clean_complete &= i40e_clean_tx_irq(q_vector->tx.ring[i],
-						    vsi->work_limit);
-		clean_complete &= i40e_clean_rx_irq(q_vector->rx.ring[i],
-						    budget_per_ring);
-	}
+
+	i40e_for_each_ring(ring, q_vector->rx)
+		clean_complete &= i40e_clean_rx_irq(ring, budget_per_ring);
 
 	/* If work not completed, return budget and polling will return */
 	if (!clean_complete)
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
index 7f3f7e3e4238..c2a6746a5ec9 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
@@ -180,6 +180,7 @@ enum i40e_ring_state_t {
 
 /* struct that defines a descriptor ring, associated with a VSI */
 struct i40e_ring {
+	struct i40e_ring *next;		/* pointer to next ring in q_vector */
 	void *desc;			/* Descriptor ring memory */
 	struct device *dev;		/* Used for DMA mapping */
 	struct net_device *netdev;	/* netdev ring maps to */
@@ -236,9 +237,8 @@ enum i40e_latency_range {
 };
 
 struct i40e_ring_container {
-#define I40E_MAX_RINGPAIR_PER_VECTOR 8
 	/* array of pointers to rings */
-	struct i40e_ring *ring[I40E_MAX_RINGPAIR_PER_VECTOR];
+	struct i40e_ring *ring;
 	unsigned int total_bytes;	/* total bytes processed this int */
 	unsigned int total_packets;	/* total packets processed this int */
 	u16 count;
@@ -246,6 +246,10 @@ struct i40e_ring_container {
 	u16 itr;
 };
 
+/* iterator for handling rings in ring container */
+#define i40e_for_each_ring(pos, head) \
+	for (pos = (head).ring; pos != NULL; pos = pos->next)
+
 void i40e_alloc_rx_buffers(struct i40e_ring *rxr, u16 cleaned_count);
 netdev_tx_t i40e_lan_xmit_frame(struct sk_buff *skb, struct net_device *netdev);
 void i40e_clean_tx_ring(struct i40e_ring *tx_ring);
-- 
cgit 


From 9f65e15b4f982391eef795a74adcc6580f0d7c53 Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Sat, 28 Sep 2013 06:00:58 +0000
Subject: i40e: Move rings from pointer to array to array of pointers

Allocate the queue pairs individually instead of as a group.  This
allows for much easier queue management as it is possible to dynamically
resize the queues without having to free and allocate the entire block.

Ease statistic collection by treating Tx/Rx queue pairs as a single
unit.  Each pair is allocated together and starts with a Tx queue and
ends with an Rx queue.  By ordering them this way it is possible to know
the Rx offset based on a pointer to the Tx queue.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e.h         |   6 +-
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 195 +++++++++++++------------
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c |  40 ++---
 drivers/net/ethernet/intel/i40e/i40e_main.c    | 142 +++++++++---------
 drivers/net/ethernet/intel/i40e/i40e_txrx.c    |   4 +-
 drivers/net/ethernet/intel/i40e/i40e_txrx.h    |   2 +
 6 files changed, 204 insertions(+), 185 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index 789304e43a0e..c06a76ca9aaa 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -347,9 +347,9 @@ struct i40e_vsi {
 	u32 rx_buf_failed;
 	u32 rx_page_failed;
 
-	/* These are arrays of rings, allocated at run-time */
-	struct i40e_ring *rx_rings;
-	struct i40e_ring *tx_rings;
+	/* These are containers of ring pointers, allocated at run-time */
+	struct i40e_ring **rx_rings;
+	struct i40e_ring **tx_rings;
 
 	u16 work_limit;
 	/* high bit set means dynamic, use accessor routines to read/write.
diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 44e3fa43af61..19e248ff6c77 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -258,12 +258,12 @@ static ssize_t i40e_dbg_dump_write(struct file *filp,
 
 			for (i = 0; i < vsi->num_queue_pairs; i++) {
 				len = sizeof(struct i40e_tx_buffer);
-				memcpy(p, vsi->tx_rings[i].tx_bi, len);
+				memcpy(p, vsi->tx_rings[i]->tx_bi, len);
 				p += len;
 			}
 			for (i = 0; i < vsi->num_queue_pairs; i++) {
 				len = sizeof(struct i40e_rx_buffer);
-				memcpy(p, vsi->rx_rings[i].rx_bi, len);
+				memcpy(p, vsi->rx_rings[i]->rx_bi, len);
 				p += len;
 			}
 
@@ -484,99 +484,104 @@ static void i40e_dbg_dump_vsi_seid(struct i40e_pf *pf, int seid)
 		 "    tx_restart = %d, tx_busy = %d, rx_buf_failed = %d, rx_page_failed = %d\n",
 		 vsi->tx_restart, vsi->tx_busy,
 		 vsi->rx_buf_failed, vsi->rx_page_failed);
-	if (vsi->rx_rings) {
-		for (i = 0; i < vsi->num_queue_pairs; i++) {
-			dev_info(&pf->pdev->dev,
-				 "    rx_rings[%i]: desc = %p\n",
-				 i, vsi->rx_rings[i].desc);
-			dev_info(&pf->pdev->dev,
-				 "    rx_rings[%i]: dev = %p, netdev = %p, rx_bi = %p\n",
-				 i, vsi->rx_rings[i].dev,
-				 vsi->rx_rings[i].netdev,
-				 vsi->rx_rings[i].rx_bi);
-			dev_info(&pf->pdev->dev,
-				 "    rx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
-				 i, vsi->rx_rings[i].state,
-				 vsi->rx_rings[i].queue_index,
-				 vsi->rx_rings[i].reg_idx);
-			dev_info(&pf->pdev->dev,
-				 "    rx_rings[%i]: rx_hdr_len = %d, rx_buf_len = %d, dtype = %d\n",
-				 i, vsi->rx_rings[i].rx_hdr_len,
-				 vsi->rx_rings[i].rx_buf_len,
-				 vsi->rx_rings[i].dtype);
-			dev_info(&pf->pdev->dev,
-				 "    rx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
-				 i, vsi->rx_rings[i].hsplit,
-				 vsi->rx_rings[i].next_to_use,
-				 vsi->rx_rings[i].next_to_clean,
-				 vsi->rx_rings[i].ring_active);
-			dev_info(&pf->pdev->dev,
-				 "    rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
-				 i, vsi->rx_rings[i].stats.packets,
-				 vsi->rx_rings[i].stats.bytes,
-				 vsi->rx_rings[i].rx_stats.non_eop_descs);
-			dev_info(&pf->pdev->dev,
-				 "    rx_rings[%i]: rx_stats: alloc_rx_page_failed = %lld, alloc_rx_buff_failed = %lld\n",
-				 i,
-				 vsi->rx_rings[i].rx_stats.alloc_rx_page_failed,
-				vsi->rx_rings[i].rx_stats.alloc_rx_buff_failed);
-			dev_info(&pf->pdev->dev,
-				 "    rx_rings[%i]: size = %i, dma = 0x%08lx\n",
-				 i, vsi->rx_rings[i].size,
-				 (long unsigned int)vsi->rx_rings[i].dma);
-			dev_info(&pf->pdev->dev,
-				 "    rx_rings[%i]: vsi = %p, q_vector = %p\n",
-				 i, vsi->rx_rings[i].vsi,
-				 vsi->rx_rings[i].q_vector);
-		}
+	rcu_read_lock();
+	for (i = 0; i < vsi->num_queue_pairs; i++) {
+		struct i40e_ring *rx_ring = ACCESS_ONCE(vsi->rx_rings[i]);
+		if (!rx_ring)
+			continue;
+
+		dev_info(&pf->pdev->dev,
+			 "    rx_rings[%i]: desc = %p\n",
+			 i, rx_ring->desc);
+		dev_info(&pf->pdev->dev,
+			 "    rx_rings[%i]: dev = %p, netdev = %p, rx_bi = %p\n",
+			 i, rx_ring->dev,
+			 rx_ring->netdev,
+			 rx_ring->rx_bi);
+		dev_info(&pf->pdev->dev,
+			 "    rx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
+			 i, rx_ring->state,
+			 rx_ring->queue_index,
+			 rx_ring->reg_idx);
+		dev_info(&pf->pdev->dev,
+			 "    rx_rings[%i]: rx_hdr_len = %d, rx_buf_len = %d, dtype = %d\n",
+			 i, rx_ring->rx_hdr_len,
+			 rx_ring->rx_buf_len,
+			 rx_ring->dtype);
+		dev_info(&pf->pdev->dev,
+			 "    rx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
+			 i, rx_ring->hsplit,
+			 rx_ring->next_to_use,
+			 rx_ring->next_to_clean,
+			 rx_ring->ring_active);
+		dev_info(&pf->pdev->dev,
+			 "    rx_rings[%i]: rx_stats: packets = %lld, bytes = %lld, non_eop_descs = %lld\n",
+			 i, rx_ring->stats.packets,
+			 rx_ring->stats.bytes,
+			 rx_ring->rx_stats.non_eop_descs);
+		dev_info(&pf->pdev->dev,
+			 "    rx_rings[%i]: rx_stats: alloc_rx_page_failed = %lld, alloc_rx_buff_failed = %lld\n",
+			 i,
+			 rx_ring->rx_stats.alloc_rx_page_failed,
+			rx_ring->rx_stats.alloc_rx_buff_failed);
+		dev_info(&pf->pdev->dev,
+			 "    rx_rings[%i]: size = %i, dma = 0x%08lx\n",
+			 i, rx_ring->size,
+			 (long unsigned int)rx_ring->dma);
+		dev_info(&pf->pdev->dev,
+			 "    rx_rings[%i]: vsi = %p, q_vector = %p\n",
+			 i, rx_ring->vsi,
+			 rx_ring->q_vector);
 	}
-	if (vsi->tx_rings) {
-		for (i = 0; i < vsi->num_queue_pairs; i++) {
-			dev_info(&pf->pdev->dev,
-				 "    tx_rings[%i]: desc = %p\n",
-				 i, vsi->tx_rings[i].desc);
-			dev_info(&pf->pdev->dev,
-				 "    tx_rings[%i]: dev = %p, netdev = %p, tx_bi = %p\n",
-				 i, vsi->tx_rings[i].dev,
-				 vsi->tx_rings[i].netdev,
-				 vsi->tx_rings[i].tx_bi);
-			dev_info(&pf->pdev->dev,
-				 "    tx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
-				 i, vsi->tx_rings[i].state,
-				 vsi->tx_rings[i].queue_index,
-				 vsi->tx_rings[i].reg_idx);
-			dev_info(&pf->pdev->dev,
-				 "    tx_rings[%i]: dtype = %d\n",
-				 i, vsi->tx_rings[i].dtype);
-			dev_info(&pf->pdev->dev,
-				 "    tx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
-				 i, vsi->tx_rings[i].hsplit,
-				 vsi->tx_rings[i].next_to_use,
-				 vsi->tx_rings[i].next_to_clean,
-				 vsi->tx_rings[i].ring_active);
-			dev_info(&pf->pdev->dev,
-				 "    tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
-				 i, vsi->tx_rings[i].stats.packets,
-				 vsi->tx_rings[i].stats.bytes,
-				 vsi->tx_rings[i].tx_stats.restart_queue);
-			dev_info(&pf->pdev->dev,
-				 "    tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
-				 i,
-				 vsi->tx_rings[i].tx_stats.tx_busy,
-				 vsi->tx_rings[i].tx_stats.tx_done_old);
-			dev_info(&pf->pdev->dev,
-				 "    tx_rings[%i]: size = %i, dma = 0x%08lx\n",
-				 i, vsi->tx_rings[i].size,
-				 (long unsigned int)vsi->tx_rings[i].dma);
-			dev_info(&pf->pdev->dev,
-				 "    tx_rings[%i]: vsi = %p, q_vector = %p\n",
-				 i, vsi->tx_rings[i].vsi,
-				 vsi->tx_rings[i].q_vector);
-			dev_info(&pf->pdev->dev,
-				 "    tx_rings[%i]: DCB tc = %d\n",
-				 i, vsi->tx_rings[i].dcb_tc);
-		}
+	for (i = 0; i < vsi->num_queue_pairs; i++) {
+		struct i40e_ring *tx_ring = ACCESS_ONCE(vsi->tx_rings[i]);
+		if (!tx_ring)
+			continue;
+		dev_info(&pf->pdev->dev,
+			 "    tx_rings[%i]: desc = %p\n",
+			 i, tx_ring->desc);
+		dev_info(&pf->pdev->dev,
+			 "    tx_rings[%i]: dev = %p, netdev = %p, tx_bi = %p\n",
+			 i, tx_ring->dev,
+			 tx_ring->netdev,
+			 tx_ring->tx_bi);
+		dev_info(&pf->pdev->dev,
+			 "    tx_rings[%i]: state = %li, queue_index = %d, reg_idx = %d\n",
+			 i, tx_ring->state,
+			 tx_ring->queue_index,
+			 tx_ring->reg_idx);
+		dev_info(&pf->pdev->dev,
+			 "    tx_rings[%i]: dtype = %d\n",
+			 i, tx_ring->dtype);
+		dev_info(&pf->pdev->dev,
+			 "    tx_rings[%i]: hsplit = %d, next_to_use = %d, next_to_clean = %d, ring_active = %i\n",
+			 i, tx_ring->hsplit,
+			 tx_ring->next_to_use,
+			 tx_ring->next_to_clean,
+			 tx_ring->ring_active);
+		dev_info(&pf->pdev->dev,
+			 "    tx_rings[%i]: tx_stats: packets = %lld, bytes = %lld, restart_queue = %lld\n",
+			 i, tx_ring->stats.packets,
+			 tx_ring->stats.bytes,
+			 tx_ring->tx_stats.restart_queue);
+		dev_info(&pf->pdev->dev,
+			 "    tx_rings[%i]: tx_stats: tx_busy = %lld, tx_done_old = %lld\n",
+			 i,
+			 tx_ring->tx_stats.tx_busy,
+			 tx_ring->tx_stats.tx_done_old);
+		dev_info(&pf->pdev->dev,
+			 "    tx_rings[%i]: size = %i, dma = 0x%08lx\n",
+			 i, tx_ring->size,
+			 (long unsigned int)tx_ring->dma);
+		dev_info(&pf->pdev->dev,
+			 "    tx_rings[%i]: vsi = %p, q_vector = %p\n",
+			 i, tx_ring->vsi,
+			 tx_ring->q_vector);
+		dev_info(&pf->pdev->dev,
+			 "    tx_rings[%i]: DCB tc = %d\n",
+			 i, tx_ring->dcb_tc);
 	}
+	rcu_read_unlock();
 	dev_info(&pf->pdev->dev,
 		 "    work_limit = %d, rx_itr_setting = %d (%s), tx_itr_setting = %d (%s)\n",
 		 vsi->work_limit, vsi->rx_itr_setting,
@@ -782,9 +787,9 @@ static void i40e_dbg_dump_desc(int cnt, int vsi_seid, int ring_id, int desc_n,
 		return;
 	}
 	if (is_rx_ring)
-		ring = vsi->rx_rings[ring_id];
+		ring = *vsi->rx_rings[ring_id];
 	else
-		ring = vsi->tx_rings[ring_id];
+		ring = *vsi->tx_rings[ring_id];
 	if (cnt == 2) {
 		dev_info(&pf->pdev->dev, "vsi = %02i %s ring = %02i\n",
 			 vsi_seid, is_rx_ring ? "rx" : "tx", ring_id);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index bf607dabe236..50153ea2d63c 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -399,8 +399,8 @@ static void i40e_get_ringparam(struct net_device *netdev,
 	ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
 	ring->rx_mini_max_pending = 0;
 	ring->rx_jumbo_max_pending = 0;
-	ring->rx_pending = vsi->rx_rings[0].count;
-	ring->tx_pending = vsi->tx_rings[0].count;
+	ring->rx_pending = vsi->rx_rings[0]->count;
+	ring->tx_pending = vsi->tx_rings[0]->count;
 	ring->rx_mini_pending = 0;
 	ring->rx_jumbo_pending = 0;
 }
@@ -429,8 +429,8 @@ static int i40e_set_ringparam(struct net_device *netdev,
 	new_rx_count = ALIGN(new_rx_count, I40E_REQ_DESCRIPTOR_MULTIPLE);
 
 	/* if nothing to do return success */
-	if ((new_tx_count == vsi->tx_rings[0].count) &&
-	    (new_rx_count == vsi->rx_rings[0].count))
+	if ((new_tx_count == vsi->tx_rings[0]->count) &&
+	    (new_rx_count == vsi->rx_rings[0]->count))
 		return 0;
 
 	while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state))
@@ -439,8 +439,8 @@ static int i40e_set_ringparam(struct net_device *netdev,
 	if (!netif_running(vsi->netdev)) {
 		/* simple case - set for the next time the netdev is started */
 		for (i = 0; i < vsi->num_queue_pairs; i++) {
-			vsi->tx_rings[i].count = new_tx_count;
-			vsi->rx_rings[i].count = new_rx_count;
+			vsi->tx_rings[i]->count = new_tx_count;
+			vsi->rx_rings[i]->count = new_rx_count;
 		}
 		goto done;
 	}
@@ -451,10 +451,10 @@ static int i40e_set_ringparam(struct net_device *netdev,
 	 */
 
 	/* alloc updated Tx resources */
-	if (new_tx_count != vsi->tx_rings[0].count) {
+	if (new_tx_count != vsi->tx_rings[0]->count) {
 		netdev_info(netdev,
 			    "Changing Tx descriptor count from %d to %d.\n",
-			    vsi->tx_rings[0].count, new_tx_count);
+			    vsi->tx_rings[0]->count, new_tx_count);
 		tx_rings = kcalloc(vsi->alloc_queue_pairs,
 				   sizeof(struct i40e_ring), GFP_KERNEL);
 		if (!tx_rings) {
@@ -464,7 +464,7 @@ static int i40e_set_ringparam(struct net_device *netdev,
 
 		for (i = 0; i < vsi->num_queue_pairs; i++) {
 			/* clone ring and setup updated count */
-			tx_rings[i] = vsi->tx_rings[i];
+			tx_rings[i] = *vsi->tx_rings[i];
 			tx_rings[i].count = new_tx_count;
 			err = i40e_setup_tx_descriptors(&tx_rings[i]);
 			if (err) {
@@ -481,10 +481,10 @@ static int i40e_set_ringparam(struct net_device *netdev,
 	}
 
 	/* alloc updated Rx resources */
-	if (new_rx_count != vsi->rx_rings[0].count) {
+	if (new_rx_count != vsi->rx_rings[0]->count) {
 		netdev_info(netdev,
 			    "Changing Rx descriptor count from %d to %d\n",
-			    vsi->rx_rings[0].count, new_rx_count);
+			    vsi->rx_rings[0]->count, new_rx_count);
 		rx_rings = kcalloc(vsi->alloc_queue_pairs,
 				   sizeof(struct i40e_ring), GFP_KERNEL);
 		if (!rx_rings) {
@@ -494,7 +494,7 @@ static int i40e_set_ringparam(struct net_device *netdev,
 
 		for (i = 0; i < vsi->num_queue_pairs; i++) {
 			/* clone ring and setup updated count */
-			rx_rings[i] = vsi->rx_rings[i];
+			rx_rings[i] = *vsi->rx_rings[i];
 			rx_rings[i].count = new_rx_count;
 			err = i40e_setup_rx_descriptors(&rx_rings[i]);
 			if (err) {
@@ -517,8 +517,8 @@ static int i40e_set_ringparam(struct net_device *netdev,
 
 	if (tx_rings) {
 		for (i = 0; i < vsi->num_queue_pairs; i++) {
-			i40e_free_tx_resources(&vsi->tx_rings[i]);
-			vsi->tx_rings[i] = tx_rings[i];
+			i40e_free_tx_resources(vsi->tx_rings[i]);
+			*vsi->tx_rings[i] = tx_rings[i];
 		}
 		kfree(tx_rings);
 		tx_rings = NULL;
@@ -526,8 +526,8 @@ static int i40e_set_ringparam(struct net_device *netdev,
 
 	if (rx_rings) {
 		for (i = 0; i < vsi->num_queue_pairs; i++) {
-			i40e_free_rx_resources(&vsi->rx_rings[i]);
-			vsi->rx_rings[i] = rx_rings[i];
+			i40e_free_rx_resources(vsi->rx_rings[i]);
+			*vsi->rx_rings[i] = rx_rings[i];
 		}
 		kfree(rx_rings);
 		rx_rings = NULL;
@@ -588,10 +588,10 @@ static void i40e_get_ethtool_stats(struct net_device *netdev,
 			sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 	}
 	for (j = 0; j < vsi->num_queue_pairs; j++, i += 4) {
-		data[i] = vsi->tx_rings[j].stats.packets;
-		data[i + 1] = vsi->tx_rings[j].stats.bytes;
-		data[i + 2] = vsi->rx_rings[j].stats.packets;
-		data[i + 3] = vsi->rx_rings[j].stats.bytes;
+		data[i] = vsi->tx_rings[j]->stats.packets;
+		data[i + 1] = vsi->tx_rings[j]->stats.bytes;
+		data[i + 2] = vsi->rx_rings[j]->stats.packets;
+		data[i + 3] = vsi->rx_rings[j]->stats.bytes;
 	}
 	if (vsi == pf->vsi[pf->lan_vsi]) {
 		for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) {
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index c74ac585c639..3cf23f5ffe20 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -376,14 +376,14 @@ void i40e_vsi_reset_stats(struct i40e_vsi *vsi)
 	memset(&vsi->eth_stats_offsets, 0, sizeof(vsi->eth_stats_offsets));
 	if (vsi->rx_rings)
 		for (i = 0; i < vsi->num_queue_pairs; i++) {
-			memset(&vsi->rx_rings[i].stats, 0 ,
-			       sizeof(vsi->rx_rings[i].stats));
-			memset(&vsi->rx_rings[i].rx_stats, 0 ,
-			       sizeof(vsi->rx_rings[i].rx_stats));
-			memset(&vsi->tx_rings[i].stats, 0 ,
-			       sizeof(vsi->tx_rings[i].stats));
-			memset(&vsi->tx_rings[i].tx_stats, 0,
-			       sizeof(vsi->tx_rings[i].tx_stats));
+			memset(&vsi->rx_rings[i]->stats, 0 ,
+			       sizeof(vsi->rx_rings[i]->stats));
+			memset(&vsi->rx_rings[i]->rx_stats, 0 ,
+			       sizeof(vsi->rx_rings[i]->rx_stats));
+			memset(&vsi->tx_rings[i]->stats, 0 ,
+			       sizeof(vsi->tx_rings[i]->stats));
+			memset(&vsi->tx_rings[i]->tx_stats, 0,
+			       sizeof(vsi->tx_rings[i]->tx_stats));
 		}
 	vsi->stat_offsets_loaded = false;
 }
@@ -602,7 +602,7 @@ static void i40e_update_link_xoff_rx(struct i40e_pf *pf)
 			continue;
 
 		for (i = 0; i < vsi->num_queue_pairs; i++) {
-			struct i40e_ring *ring = &vsi->tx_rings[i];
+			struct i40e_ring *ring = vsi->tx_rings[i];
 			clear_bit(__I40E_HANG_CHECK_ARMED, &ring->state);
 		}
 	}
@@ -656,7 +656,7 @@ static void i40e_update_prio_xoff_rx(struct i40e_pf *pf)
 			continue;
 
 		for (i = 0; i < vsi->num_queue_pairs; i++) {
-			struct i40e_ring *ring = &vsi->tx_rings[i];
+			struct i40e_ring *ring = vsi->tx_rings[i];
 
 			tc = ring->dcb_tc;
 			if (xoff[tc])
@@ -711,13 +711,13 @@ void i40e_update_stats(struct i40e_vsi *vsi)
 	for (q = 0; q < vsi->num_queue_pairs; q++) {
 		struct i40e_ring *p;
 
-		p = &vsi->rx_rings[q];
+		p = vsi->rx_rings[q];
 		rx_b += p->stats.bytes;
 		rx_p += p->stats.packets;
 		rx_buf += p->rx_stats.alloc_rx_buff_failed;
 		rx_page += p->rx_stats.alloc_rx_page_failed;
 
-		p = &vsi->tx_rings[q];
+		p = vsi->tx_rings[q];
 		tx_b += p->stats.bytes;
 		tx_p += p->stats.packets;
 		tx_restart += p->tx_stats.restart_queue;
@@ -1992,7 +1992,7 @@ static int i40e_vsi_setup_tx_resources(struct i40e_vsi *vsi)
 	int i, err = 0;
 
 	for (i = 0; i < vsi->num_queue_pairs && !err; i++)
-		err = i40e_setup_tx_descriptors(&vsi->tx_rings[i]);
+		err = i40e_setup_tx_descriptors(vsi->tx_rings[i]);
 
 	return err;
 }
@@ -2008,8 +2008,8 @@ static void i40e_vsi_free_tx_resources(struct i40e_vsi *vsi)
 	int i;
 
 	for (i = 0; i < vsi->num_queue_pairs; i++)
-		if (vsi->tx_rings[i].desc)
-			i40e_free_tx_resources(&vsi->tx_rings[i]);
+		if (vsi->tx_rings[i]->desc)
+			i40e_free_tx_resources(vsi->tx_rings[i]);
 }
 
 /**
@@ -2027,7 +2027,7 @@ static int i40e_vsi_setup_rx_resources(struct i40e_vsi *vsi)
 	int i, err = 0;
 
 	for (i = 0; i < vsi->num_queue_pairs && !err; i++)
-		err = i40e_setup_rx_descriptors(&vsi->rx_rings[i]);
+		err = i40e_setup_rx_descriptors(vsi->rx_rings[i]);
 	return err;
 }
 
@@ -2042,8 +2042,8 @@ static void i40e_vsi_free_rx_resources(struct i40e_vsi *vsi)
 	int i;
 
 	for (i = 0; i < vsi->num_queue_pairs; i++)
-		if (vsi->rx_rings[i].desc)
-			i40e_free_rx_resources(&vsi->rx_rings[i]);
+		if (vsi->rx_rings[i]->desc)
+			i40e_free_rx_resources(vsi->rx_rings[i]);
 }
 
 /**
@@ -2227,8 +2227,8 @@ static int i40e_vsi_configure_tx(struct i40e_vsi *vsi)
 	int err = 0;
 	u16 i;
 
-	for (i = 0; (i < vsi->num_queue_pairs) && (!err); i++)
-		err = i40e_configure_tx_ring(&vsi->tx_rings[i]);
+	for (i = 0; (i < vsi->num_queue_pairs) && !err; i++)
+		err = i40e_configure_tx_ring(vsi->tx_rings[i]);
 
 	return err;
 }
@@ -2278,7 +2278,7 @@ static int i40e_vsi_configure_rx(struct i40e_vsi *vsi)
 
 	/* set up individual rings */
 	for (i = 0; i < vsi->num_queue_pairs && !err; i++)
-		err = i40e_configure_rx_ring(&vsi->rx_rings[i]);
+		err = i40e_configure_rx_ring(vsi->rx_rings[i]);
 
 	return err;
 }
@@ -2302,8 +2302,8 @@ static void i40e_vsi_config_dcb_rings(struct i40e_vsi *vsi)
 		qoffset = vsi->tc_config.tc_info[n].qoffset;
 		qcount = vsi->tc_config.tc_info[n].qcount;
 		for (i = qoffset; i < (qoffset + qcount); i++) {
-			struct i40e_ring *rx_ring = &vsi->rx_rings[i];
-			struct i40e_ring *tx_ring = &vsi->tx_rings[i];
+			struct i40e_ring *rx_ring = vsi->rx_rings[i];
+			struct i40e_ring *tx_ring = vsi->tx_rings[i];
 			rx_ring->dcb_tc = n;
 			tx_ring->dcb_tc = n;
 		}
@@ -2615,8 +2615,8 @@ static void i40e_vsi_disable_irq(struct i40e_vsi *vsi)
 	int i;
 
 	for (i = 0; i < vsi->num_queue_pairs; i++) {
-		wr32(hw, I40E_QINT_TQCTL(vsi->tx_rings[i].reg_idx), 0);
-		wr32(hw, I40E_QINT_RQCTL(vsi->rx_rings[i].reg_idx), 0);
+		wr32(hw, I40E_QINT_TQCTL(vsi->tx_rings[i]->reg_idx), 0);
+		wr32(hw, I40E_QINT_RQCTL(vsi->rx_rings[i]->reg_idx), 0);
 	}
 
 	if (pf->flags & I40E_FLAG_MSIX_ENABLED) {
@@ -2786,8 +2786,8 @@ static irqreturn_t i40e_intr(int irq, void *data)
 static void map_vector_to_qp(struct i40e_vsi *vsi, int v_idx, int qp_idx)
 {
 	struct i40e_q_vector *q_vector = vsi->q_vectors[v_idx];
-	struct i40e_ring *tx_ring = &(vsi->tx_rings[qp_idx]);
-	struct i40e_ring *rx_ring = &(vsi->rx_rings[qp_idx]);
+	struct i40e_ring *tx_ring = vsi->tx_rings[qp_idx];
+	struct i40e_ring *rx_ring = vsi->rx_rings[qp_idx];
 
 	tx_ring->q_vector = q_vector;
 	tx_ring->next = q_vector->tx.ring;
@@ -3792,8 +3792,8 @@ void i40e_down(struct i40e_vsi *vsi)
 	i40e_napi_disable_all(vsi);
 
 	for (i = 0; i < vsi->num_queue_pairs; i++) {
-		i40e_clean_tx_ring(&vsi->tx_rings[i]);
-		i40e_clean_rx_ring(&vsi->rx_rings[i]);
+		i40e_clean_tx_ring(vsi->tx_rings[i]);
+		i40e_clean_rx_ring(vsi->rx_rings[i]);
 	}
 }
 
@@ -4220,9 +4220,9 @@ static void i40e_check_hang_subtask(struct i40e_pf *pf)
 			continue;
 
 		for (i = 0; i < vsi->num_queue_pairs; i++) {
-			set_check_for_tx_hang(&vsi->tx_rings[i]);
+			set_check_for_tx_hang(vsi->tx_rings[i]);
 			if (test_bit(__I40E_HANG_CHECK_ARMED,
-				     &vsi->tx_rings[i].state))
+				     &vsi->tx_rings[i]->state))
 				armed++;
 		}
 
@@ -4959,6 +4959,7 @@ static int i40e_vsi_mem_alloc(struct i40e_pf *pf, enum i40e_vsi_type type)
 	int ret = -ENODEV;
 	struct i40e_vsi *vsi;
 	int sz_vectors;
+	int sz_rings;
 	int vsi_idx;
 	int i;
 
@@ -5004,7 +5005,18 @@ static int i40e_vsi_mem_alloc(struct i40e_pf *pf, enum i40e_vsi_type type)
 	vsi->work_limit = I40E_DEFAULT_IRQ_WORK;
 	INIT_LIST_HEAD(&vsi->mac_filter_list);
 
-	i40e_set_num_rings_in_vsi(vsi);
+	ret = i40e_set_num_rings_in_vsi(vsi);
+	if (ret)
+		goto err_rings;
+
+	/* allocate memory for ring pointers */
+	sz_rings = sizeof(struct i40e_ring *) * vsi->alloc_queue_pairs * 2;
+	vsi->tx_rings = kzalloc(sz_rings, GFP_KERNEL);
+	if (!vsi->tx_rings) {
+		ret = -ENOMEM;
+		goto err_rings;
+	}
+	vsi->rx_rings = &vsi->tx_rings[vsi->alloc_queue_pairs];
 
 	/* allocate memory for q_vector pointers */
 	sz_vectors = sizeof(struct i40e_q_vectors *) * vsi->num_q_vectors;
@@ -5022,6 +5034,8 @@ static int i40e_vsi_mem_alloc(struct i40e_pf *pf, enum i40e_vsi_type type)
 	goto unlock_pf;
 
 err_vectors:
+ 	kfree(vsi->tx_rings);
+err_rings:
 	pf->next_vsi = i - 1;
 	kfree(vsi);
 unlock_pf:
@@ -5067,6 +5081,7 @@ static int i40e_vsi_clear(struct i40e_vsi *vsi)
 
 	/* free the ring and vector containers */
 	kfree(vsi->q_vectors);
+	kfree(vsi->tx_rings);
 
 	pf->vsi[vsi->idx] = NULL;
 	if (vsi->idx < pf->next_vsi)
@@ -5080,6 +5095,23 @@ free_vsi:
 	return 0;
 }
 
+/**
+ * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
+ * @vsi: the VSI being cleaned
+ **/
+static s32 i40e_vsi_clear_rings(struct i40e_vsi *vsi)
+{
+	int i;
+
+	for (i = 0; i < vsi->alloc_queue_pairs; i++) {
+		kfree_rcu(vsi->tx_rings[i], rcu);
+		vsi->tx_rings[i] = NULL;
+		vsi->rx_rings[i] = NULL;
+	}
+
+	return 0;
+}
+
 /**
  * i40e_alloc_rings - Allocates the Rx and Tx rings for the provided VSI
  * @vsi: the VSI being configured
@@ -5087,28 +5119,16 @@ free_vsi:
 static int i40e_alloc_rings(struct i40e_vsi *vsi)
 {
 	struct i40e_pf *pf = vsi->back;
-	int ret = 0;
 	int i;
 
-	vsi->rx_rings = kcalloc(vsi->alloc_queue_pairs,
-				sizeof(struct i40e_ring), GFP_KERNEL);
-	if (!vsi->rx_rings) {
-		ret = -ENOMEM;
-		goto err_alloc_rings;
-	}
-
-	vsi->tx_rings = kcalloc(vsi->alloc_queue_pairs,
-				sizeof(struct i40e_ring), GFP_KERNEL);
-	if (!vsi->tx_rings) {
-		ret = -ENOMEM;
-		kfree(vsi->rx_rings);
-		goto err_alloc_rings;
-	}
-
 	/* Set basic values in the rings to be used later during open() */
 	for (i = 0; i < vsi->alloc_queue_pairs; i++) {
-		struct i40e_ring *rx_ring = &vsi->rx_rings[i];
-		struct i40e_ring *tx_ring = &vsi->tx_rings[i];
+		struct i40e_ring *tx_ring;
+		struct i40e_ring *rx_ring;
+
+		tx_ring = kzalloc(sizeof(struct i40e_ring) * 2, GFP_KERNEL);
+		if (!tx_ring)
+			goto err_out;
 
 		tx_ring->queue_index = i;
 		tx_ring->reg_idx = vsi->base_queue + i;
@@ -5119,7 +5139,9 @@ static int i40e_alloc_rings(struct i40e_vsi *vsi)
 		tx_ring->count = vsi->num_desc;
 		tx_ring->size = 0;
 		tx_ring->dcb_tc = 0;
+		vsi->tx_rings[i] = tx_ring;
 
+		rx_ring = &tx_ring[1];
 		rx_ring->queue_index = i;
 		rx_ring->reg_idx = vsi->base_queue + i;
 		rx_ring->ring_active = false;
@@ -5133,24 +5155,14 @@ static int i40e_alloc_rings(struct i40e_vsi *vsi)
 			set_ring_16byte_desc_enabled(rx_ring);
 		else
 			clear_ring_16byte_desc_enabled(rx_ring);
-	}
-
-err_alloc_rings:
-	return ret;
-}
-
-/**
- * i40e_vsi_clear_rings - Deallocates the Rx and Tx rings for the provided VSI
- * @vsi: the VSI being cleaned
- **/
-static int i40e_vsi_clear_rings(struct i40e_vsi *vsi)
-{
-	if (vsi) {
-		kfree(vsi->rx_rings);
-		kfree(vsi->tx_rings);
+		vsi->rx_rings[i] = rx_ring;
 	}
 
 	return 0;
+
+err_out:
+	i40e_vsi_clear_rings(vsi);
+	return -ENOMEM;
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index f153f3770346..9eee551aa49e 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -64,7 +64,7 @@ int i40e_program_fdir_filter(struct i40e_fdir_data *fdir_data,
 	if (!vsi)
 		return -ENOENT;
 
-	tx_ring = &vsi->tx_rings[0];
+	tx_ring = vsi->tx_rings[0];
 	dev = tx_ring->dev;
 
 	dma = dma_map_single(dev, fdir_data->raw_packet,
@@ -1823,7 +1823,7 @@ netdev_tx_t i40e_lan_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 {
 	struct i40e_netdev_priv *np = netdev_priv(netdev);
 	struct i40e_vsi *vsi = np->vsi;
-	struct i40e_ring *tx_ring = &vsi->tx_rings[skb->queue_mapping];
+	struct i40e_ring *tx_ring = vsi->tx_rings[skb->queue_mapping];
 
 	/* hardware can't handle really short frames, hardware padding works
 	 * beyond this point
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
index c2a6746a5ec9..5db36c38573e 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
@@ -228,6 +228,8 @@ struct i40e_ring {
 
 	struct i40e_vsi *vsi;		/* Backreference to associated VSI */
 	struct i40e_q_vector *q_vector;	/* Backreference to associated vector */
+
+	struct rcu_head rcu;		/* to avoid race on free */
 } ____cacheline_internodealigned_in_smp;
 
 enum i40e_latency_range {
-- 
cgit 


From 980e9b1186424fa3eb766d59fc91003d0ed1ed6a Mon Sep 17 00:00:00 2001
From: Alexander Duyck <alexander.h.duyck@intel.com>
Date: Sat, 28 Sep 2013 06:01:03 +0000
Subject: i40e: Add support for 64 bit netstats

This change brings support for 64 bit netstats to the driver. Previously
the stats were 64 bit but highly racy due to the fact that 64 bit
transactions are not atomic on 32 bit systems.  This change makes is so
that the 64 bit byte and packet stats are reliable on all architectures.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 27 +++++++--
 drivers/net/ethernet/intel/i40e/i40e_main.c    | 78 ++++++++++++++++++++++----
 drivers/net/ethernet/intel/i40e/i40e_txrx.c    |  4 ++
 drivers/net/ethernet/intel/i40e/i40e_txrx.h    |  1 +
 4 files changed, 95 insertions(+), 15 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 50153ea2d63c..1b86138fa9e1 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -579,6 +579,7 @@ static void i40e_get_ethtool_stats(struct net_device *netdev,
 	char *p;
 	int j;
 	struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi);
+	unsigned int start;
 
 	i40e_update_stats(vsi);
 
@@ -587,12 +588,30 @@ static void i40e_get_ethtool_stats(struct net_device *netdev,
 		data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat ==
 			sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
 	}
+	rcu_read_lock();
 	for (j = 0; j < vsi->num_queue_pairs; j++, i += 4) {
-		data[i] = vsi->tx_rings[j]->stats.packets;
-		data[i + 1] = vsi->tx_rings[j]->stats.bytes;
-		data[i + 2] = vsi->rx_rings[j]->stats.packets;
-		data[i + 3] = vsi->rx_rings[j]->stats.bytes;
+		struct i40e_ring *tx_ring = ACCESS_ONCE(vsi->tx_rings[j]);
+		struct i40e_ring *rx_ring;
+
+		if (!tx_ring)
+			continue;
+
+		/* process Tx ring statistics */
+		do {
+			start = u64_stats_fetch_begin_bh(&tx_ring->syncp);
+			data[i] = tx_ring->stats.packets;
+			data[i + 1] = tx_ring->stats.bytes;
+		} while (u64_stats_fetch_retry_bh(&tx_ring->syncp, start));
+
+		/* Rx ring is the 2nd half of the queue pair */
+		rx_ring = &tx_ring[1];
+		do {
+			start = u64_stats_fetch_begin_bh(&rx_ring->syncp);
+			data[i + 2] = rx_ring->stats.packets;
+			data[i + 3] = rx_ring->stats.bytes;
+		} while (u64_stats_fetch_retry_bh(&rx_ring->syncp, start));
 	}
+	rcu_read_unlock();
 	if (vsi == pf->vsi[pf->lan_vsi]) {
 		for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) {
 			p = (char *)pf + i40e_gstrings_stats[j].stat_offset;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 3cf23f5ffe20..24ee5d46b758 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -347,14 +347,53 @@ struct rtnl_link_stats64 *i40e_get_vsi_stats_struct(struct i40e_vsi *vsi)
  **/
 static struct rtnl_link_stats64 *i40e_get_netdev_stats_struct(
 					     struct net_device *netdev,
-					     struct rtnl_link_stats64 *storage)
+					     struct rtnl_link_stats64 *stats)
 {
 	struct i40e_netdev_priv *np = netdev_priv(netdev);
 	struct i40e_vsi *vsi = np->vsi;
+	struct rtnl_link_stats64 *vsi_stats = i40e_get_vsi_stats_struct(vsi);
+	int i;
+
+	rcu_read_lock();
+	for (i = 0; i < vsi->num_queue_pairs; i++) {
+		struct i40e_ring *tx_ring, *rx_ring;
+		u64 bytes, packets;
+		unsigned int start;
+
+		tx_ring = ACCESS_ONCE(vsi->tx_rings[i]);
+		if (!tx_ring)
+			continue;
 
-	*storage = *i40e_get_vsi_stats_struct(vsi);
+		do {
+			start = u64_stats_fetch_begin_bh(&tx_ring->syncp);
+			packets = tx_ring->stats.packets;
+			bytes   = tx_ring->stats.bytes;
+		} while (u64_stats_fetch_retry_bh(&tx_ring->syncp, start));
+
+		stats->tx_packets += packets;
+		stats->tx_bytes   += bytes;
+		rx_ring = &tx_ring[1];
+
+		do {
+			start = u64_stats_fetch_begin_bh(&rx_ring->syncp);
+			packets = rx_ring->stats.packets;
+			bytes   = rx_ring->stats.bytes;
+		} while (u64_stats_fetch_retry_bh(&rx_ring->syncp, start));
 
-	return storage;
+		stats->rx_packets += packets;
+		stats->rx_bytes   += bytes;
+	}
+	rcu_read_unlock();
+
+	/* following stats updated by ixgbe_watchdog_task() */
+	stats->multicast	= vsi_stats->multicast;
+	stats->tx_errors	= vsi_stats->tx_errors;
+	stats->tx_dropped	= vsi_stats->tx_dropped;
+	stats->rx_errors	= vsi_stats->rx_errors;
+	stats->rx_crc_errors	= vsi_stats->rx_crc_errors;
+	stats->rx_length_errors	= vsi_stats->rx_length_errors;
+
+	return stats;
 }
 
 /**
@@ -708,21 +747,38 @@ void i40e_update_stats(struct i40e_vsi *vsi)
 	tx_restart = tx_busy = 0;
 	rx_page = 0;
 	rx_buf = 0;
+	rcu_read_lock();
 	for (q = 0; q < vsi->num_queue_pairs; q++) {
 		struct i40e_ring *p;
+		u64 bytes, packets;
+		unsigned int start;
 
-		p = vsi->rx_rings[q];
-		rx_b += p->stats.bytes;
-		rx_p += p->stats.packets;
-		rx_buf += p->rx_stats.alloc_rx_buff_failed;
-		rx_page += p->rx_stats.alloc_rx_page_failed;
+		/* locate Tx ring */
+		p = ACCESS_ONCE(vsi->tx_rings[q]);
 
-		p = vsi->tx_rings[q];
-		tx_b += p->stats.bytes;
-		tx_p += p->stats.packets;
+		do {
+			start = u64_stats_fetch_begin_bh(&p->syncp);
+			packets = p->stats.packets;
+			bytes = p->stats.bytes;
+		} while (u64_stats_fetch_retry_bh(&p->syncp, start));
+		tx_b += bytes;
+		tx_p += packets;
 		tx_restart += p->tx_stats.restart_queue;
 		tx_busy += p->tx_stats.tx_busy;
+
+		/* Rx queue is part of the same block as Tx queue */
+		p = &p[1];
+		do {
+			start = u64_stats_fetch_begin_bh(&p->syncp);
+			packets = p->stats.packets;
+			bytes = p->stats.bytes;
+		} while (u64_stats_fetch_retry_bh(&p->syncp, start));
+		rx_b += bytes;
+		rx_p += packets;
+		rx_buf += p->rx_stats.alloc_rx_buff_failed;
+		rx_page += p->rx_stats.alloc_rx_page_failed;
 	}
+	rcu_read_unlock();
 	vsi->tx_restart = tx_restart;
 	vsi->tx_busy = tx_busy;
 	vsi->rx_page_failed = rx_page;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 9eee551aa49e..dc89e72fd0f4 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -411,8 +411,10 @@ static bool i40e_clean_tx_irq(struct i40e_ring *tx_ring, int budget)
 
 	i += tx_ring->count;
 	tx_ring->next_to_clean = i;
+	u64_stats_update_begin(&tx_ring->syncp);
 	tx_ring->stats.bytes += total_bytes;
 	tx_ring->stats.packets += total_packets;
+	u64_stats_update_end(&tx_ring->syncp);
 	tx_ring->q_vector->tx.total_bytes += total_bytes;
 	tx_ring->q_vector->tx.total_packets += total_packets;
 
@@ -1075,8 +1077,10 @@ next_desc:
 	}
 
 	rx_ring->next_to_clean = i;
+	u64_stats_update_begin(&rx_ring->syncp);
 	rx_ring->stats.packets += total_rx_packets;
 	rx_ring->stats.bytes += total_rx_bytes;
+	u64_stats_update_end(&rx_ring->syncp);
 	rx_ring->q_vector->rx.total_packets += total_rx_packets;
 	rx_ring->q_vector->rx.total_bytes += total_rx_bytes;
 
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.h b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
index 5db36c38573e..db55d9947f15 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.h
@@ -218,6 +218,7 @@ struct i40e_ring {
 
 	/* stats structs */
 	struct i40e_queue_stats	stats;
+	struct u64_stats_sync syncp;
 	union {
 		struct i40e_tx_queue_stats tx_stats;
 		struct i40e_rx_queue_stats rx_stats;
-- 
cgit 


From d04795d6630d85be7359eb06695f8365d53b2c60 Mon Sep 17 00:00:00 2001
From: Catherine Sullivan <catherine.sullivan@intel.com>
Date: Sat, 28 Sep 2013 06:00:07 +0000
Subject: i40e: Bump version

Update the version number of the driver.

Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 24ee5d46b758..fbe7fe2914a9 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -36,7 +36,7 @@ static const char i40e_driver_string[] =
 
 #define DRV_VERSION_MAJOR 0
 #define DRV_VERSION_MINOR 3
-#define DRV_VERSION_BUILD 9
+#define DRV_VERSION_BUILD 10
 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
 	     __stringify(DRV_VERSION_MINOR) "." \
 	     __stringify(DRV_VERSION_BUILD)    DRV_KERN
-- 
cgit 


From cd4035e814b04c009ece9939396d06370c53ed44 Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Thu, 10 Oct 2013 09:01:25 +0200
Subject: ALSA: hda - Enable surround speakers (when line out is also present)

In the case where we have both line out and more than stereo speakers,
the speaker DACs will end up in extra_out_nid.
In fact, AFAIU, speakers are the only ones that can end up in extra_out_nid,
and if we have several of those, they should be surround outputs
rather than copy front.

BugLink: https://bugs.launchpad.net/bugs/1236965
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_codec.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 5b6c4e3c92ca..68801ba001ce 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -5395,11 +5395,6 @@ int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
 			snd_hda_codec_setup_stream(codec,
 						   mout->hp_out_nid[i],
 						   stream_tag, 0, format);
-	for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
-		if (!mout->no_share_stream && mout->extra_out_nid[i])
-			snd_hda_codec_setup_stream(codec,
-						   mout->extra_out_nid[i],
-						   stream_tag, 0, format);
 
 	/* surrounds */
 	for (i = 1; i < mout->num_dacs; i++) {
@@ -5410,6 +5405,20 @@ int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
 			snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
 						   0, format);
 	}
+
+	/* extra surrounds */
+	for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++) {
+		int ch = 0;
+		if (!mout->extra_out_nid[i])
+			break;
+		if (chs >= (i + 1) * 2)
+			ch = i * 2;
+		else if (!mout->no_share_stream)
+			break;
+		snd_hda_codec_setup_stream(codec, mout->extra_out_nid[i],
+					   stream_tag, ch, format);
+	}
+
 	return 0;
 }
 EXPORT_SYMBOL_HDA(snd_hda_multi_out_analog_prepare);
-- 
cgit 


From 2cb763614c1c5baef58045af9304265075f22d0a Mon Sep 17 00:00:00 2001
From: Dong Zhu <bluezhudong@gmail.com>
Date: Thu, 10 Oct 2013 15:56:18 +0800
Subject: timer stats: Add a 'Collection: active/inactive' line to timer usage
 statistics

We can enable/disable timer statistics collection via:

  echo [1|0] > /proc/timers_stats

and it would be nice if apps had the ability to check
what the current collection status is.

This patch adds a 'Collection: active/inactive' line to display the
current timer collection status.

Also bump up the timer stats version to v0.3.

Signed-off-by: Dong Zhu <bluezhudong@gmail.com>
Cc: John Stultz <john.stultz@linaro.org>
Link: http://lkml.kernel.org/r/20131010075618.GH2139@zhudong.nay.redhat.com
[ Improved the changelog and the code. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/time/timer_stats.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c
index 0b537f27b559..1fb08f21302e 100644
--- a/kernel/time/timer_stats.c
+++ b/kernel/time/timer_stats.c
@@ -298,15 +298,15 @@ static int tstats_show(struct seq_file *m, void *v)
 	period = ktime_to_timespec(time);
 	ms = period.tv_nsec / 1000000;
 
-	seq_puts(m, "Timer Stats Version: v0.2\n");
+	seq_puts(m, "Timer Stats Version: v0.3\n");
 	seq_printf(m, "Sample period: %ld.%03ld s\n", period.tv_sec, ms);
 	if (atomic_read(&overflow_count))
-		seq_printf(m, "Overflow: %d entries\n",
-			atomic_read(&overflow_count));
+		seq_printf(m, "Overflow: %d entries\n", atomic_read(&overflow_count));
+	seq_printf(m, "Collection: %s\n", timer_stats_active ? "active" : "inactive");
 
 	for (i = 0; i < nr_entries; i++) {
 		entry = entries + i;
- 		if (entry->timer_flag & TIMER_STATS_FLAG_DEFERRABLE) {
+		if (entry->timer_flag & TIMER_STATS_FLAG_DEFERRABLE) {
 			seq_printf(m, "%4luD, %5d %-16s ",
 				entry->count, entry->pid, entry->comm);
 		} else {
-- 
cgit 


From 1d399ae5c74619c841fa13834c4f79506aaf6957 Mon Sep 17 00:00:00 2001
From: Andre Guedes <andre.guedes@openbossa.org>
Date: Tue, 8 Oct 2013 08:21:17 -0300
Subject: Bluetooth: Use HCI request for LE connection

This patch introduces a new helper, which uses the HCI request
framework, for creating LE connectons. All the handling is now
done by this function so we can remove the hci_cs_le_create_conn()
event handler.

This patch also removes the old hci_le_create_connection() since
it is not used anymore.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/hci_conn.c  | 91 ++++++++++++++++++++++++++++++++++-------------
 net/bluetooth/hci_event.c | 31 ----------------
 2 files changed, 67 insertions(+), 55 deletions(-)

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 2a220a8c9869..1800b50558e4 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -49,29 +49,6 @@ static const struct sco_param sco_param_wideband[] = {
 	{ EDR_ESCO_MASK | ESCO_EV3,   0x0008 }, /* T1 */
 };
 
-static void hci_le_create_connection(struct hci_conn *conn)
-{
-	struct hci_dev *hdev = conn->hdev;
-	struct hci_cp_le_create_conn cp;
-
-	memset(&cp, 0, sizeof(cp));
-	cp.scan_interval = __constant_cpu_to_le16(0x0060);
-	cp.scan_window = __constant_cpu_to_le16(0x0030);
-	bacpy(&cp.peer_addr, &conn->dst);
-	cp.peer_addr_type = conn->dst_type;
-	if (bacmp(&hdev->bdaddr, BDADDR_ANY))
-		cp.own_address_type = ADDR_LE_DEV_PUBLIC;
-	else
-		cp.own_address_type = ADDR_LE_DEV_RANDOM;
-	cp.conn_interval_min = __constant_cpu_to_le16(0x0028);
-	cp.conn_interval_max = __constant_cpu_to_le16(0x0038);
-	cp.supervision_timeout = __constant_cpu_to_le16(0x002a);
-	cp.min_ce_len = __constant_cpu_to_le16(0x0000);
-	cp.max_ce_len = __constant_cpu_to_le16(0x0000);
-
-	hci_send_cmd(hdev, HCI_OP_LE_CREATE_CONN, sizeof(cp), &cp);
-}
-
 static void hci_le_create_connection_cancel(struct hci_conn *conn)
 {
 	hci_send_cmd(conn->hdev, HCI_OP_LE_CREATE_CONN_CANCEL, 0, NULL);
@@ -545,10 +522,74 @@ struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src)
 }
 EXPORT_SYMBOL(hci_get_route);
 
+static void create_le_conn_complete(struct hci_dev *hdev, u8 status)
+{
+	struct hci_conn *conn;
+
+	if (status == 0)
+		return;
+
+	BT_ERR("HCI request failed to create LE connection: status 0x%2.2x",
+	       status);
+
+	hci_dev_lock(hdev);
+
+	conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
+	if (!conn)
+		goto done;
+
+	conn->state = BT_CLOSED;
+
+	mgmt_connect_failed(hdev, &conn->dst, conn->type, conn->dst_type,
+			    status);
+
+	hci_proto_connect_cfm(conn, status);
+
+	hci_conn_del(conn);
+
+done:
+	hci_dev_unlock(hdev);
+}
+
+static int hci_create_le_conn(struct hci_conn *conn)
+{
+	struct hci_dev *hdev = conn->hdev;
+	struct hci_cp_le_create_conn cp;
+	struct hci_request req;
+	int err;
+
+	hci_req_init(&req, hdev);
+
+	memset(&cp, 0, sizeof(cp));
+	cp.scan_interval = __constant_cpu_to_le16(0x0060);
+	cp.scan_window = __constant_cpu_to_le16(0x0030);
+	bacpy(&cp.peer_addr, &conn->dst);
+	cp.peer_addr_type = conn->dst_type;
+	if (bacmp(&hdev->bdaddr, BDADDR_ANY))
+		cp.own_address_type = ADDR_LE_DEV_PUBLIC;
+	else
+		cp.own_address_type = ADDR_LE_DEV_RANDOM;
+	cp.conn_interval_min = __constant_cpu_to_le16(0x0028);
+	cp.conn_interval_max = __constant_cpu_to_le16(0x0038);
+	cp.supervision_timeout = __constant_cpu_to_le16(0x002a);
+	cp.min_ce_len = __constant_cpu_to_le16(0x0000);
+	cp.max_ce_len = __constant_cpu_to_le16(0x0000);
+	hci_req_add(&req, HCI_OP_LE_CREATE_CONN, sizeof(cp), &cp);
+
+	err = hci_req_run(&req, create_le_conn_complete);
+	if (err) {
+		hci_conn_del(conn);
+		return err;
+	}
+
+	return 0;
+}
+
 static struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
 				    u8 dst_type, u8 sec_level, u8 auth_type)
 {
 	struct hci_conn *conn;
+	int err;
 
 	if (test_bit(HCI_ADVERTISING, &hdev->flags))
 		return ERR_PTR(-ENOTSUPP);
@@ -569,7 +610,9 @@ static struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
 		conn->link_mode |= HCI_LM_MASTER;
 		conn->sec_level = BT_SECURITY_LOW;
 
-		hci_le_create_connection(conn);
+		err = hci_create_le_conn(conn);
+		if (err)
+			return ERR_PTR(err);
 	}
 
 	conn->pending_sec_level = sec_level;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 221a185cc951..ada3bf4d7e2a 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1472,33 +1472,6 @@ static void hci_cs_disconnect(struct hci_dev *hdev, u8 status)
 	hci_dev_unlock(hdev);
 }
 
-static void hci_cs_le_create_conn(struct hci_dev *hdev, __u8 status)
-{
-	struct hci_conn *conn;
-
-	BT_DBG("%s status 0x%2.2x", hdev->name, status);
-
-	if (status) {
-		hci_dev_lock(hdev);
-
-		conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
-		if (!conn) {
-			hci_dev_unlock(hdev);
-			return;
-		}
-
-		BT_DBG("%s bdaddr %pMR conn %p", hdev->name, &conn->dst, conn);
-
-		conn->state = BT_CLOSED;
-		mgmt_connect_failed(hdev, &conn->dst, conn->type,
-				    conn->dst_type, status);
-		hci_proto_connect_cfm(conn, status);
-		hci_conn_del(conn);
-
-		hci_dev_unlock(hdev);
-	}
-}
-
 static void hci_cs_create_phylink(struct hci_dev *hdev, u8 status)
 {
 	struct hci_cp_create_phy_link *cp;
@@ -2364,10 +2337,6 @@ static void hci_cmd_status_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_cs_disconnect(hdev, ev->status);
 		break;
 
-	case HCI_OP_LE_CREATE_CONN:
-		hci_cs_le_create_conn(hdev, ev->status);
-		break;
-
 	case HCI_OP_CREATE_PHY_LINK:
 		hci_cs_create_phylink(hdev, ev->status);
 		break;
-- 
cgit 


From 620ad5219c0f0aa43731b2fd8fd9efac78c10deb Mon Sep 17 00:00:00 2001
From: Andre Guedes <andre.guedes@openbossa.org>
Date: Tue, 8 Oct 2013 08:21:18 -0300
Subject: Bluetooth: Refactor hci_connect_le

This patch does some code refactoring in hci_connect_le() by moving
the exception code into if statements and letting the main flow in
first level of function scope. It also adds extra comments to improve
the code readability.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/hci_conn.c | 51 +++++++++++++++++++++++++++++++-----------------
 1 file changed, 33 insertions(+), 18 deletions(-)

diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 1800b50558e4..dedd1ea5dd4c 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -594,32 +594,47 @@ static struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
 	if (test_bit(HCI_ADVERTISING, &hdev->flags))
 		return ERR_PTR(-ENOTSUPP);
 
+	/* Some devices send ATT messages as soon as the physical link is
+	 * established. To be able to handle these ATT messages, the user-
+	 * space first establishes the connection and then starts the pairing
+	 * process.
+	 *
+	 * So if a hci_conn object already exists for the following connection
+	 * attempt, we simply update pending_sec_level and auth_type fields
+	 * and return the object found.
+	 */
 	conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, dst);
-	if (!conn) {
-		conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
-		if (conn)
-			return ERR_PTR(-EBUSY);
-
-		conn = hci_conn_add(hdev, LE_LINK, dst);
-		if (!conn)
-			return ERR_PTR(-ENOMEM);
+	if (conn) {
+		conn->pending_sec_level = sec_level;
+		conn->auth_type = auth_type;
+		goto done;
+	}
 
-		conn->dst_type = bdaddr_to_le(dst_type);
-		conn->state = BT_CONNECT;
-		conn->out = true;
-		conn->link_mode |= HCI_LM_MASTER;
-		conn->sec_level = BT_SECURITY_LOW;
+	/* Since the controller supports only one LE connection attempt at a
+	 * time, we return -EBUSY if there is any connection attempt running.
+	 */
+	conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT);
+	if (conn)
+		return ERR_PTR(-EBUSY);
 
-		err = hci_create_le_conn(conn);
-		if (err)
-			return ERR_PTR(err);
-	}
+	conn = hci_conn_add(hdev, LE_LINK, dst);
+	if (!conn)
+		return ERR_PTR(-ENOMEM);
 
+	conn->dst_type = bdaddr_to_le(dst_type);
+	conn->state = BT_CONNECT;
+	conn->out = true;
+	conn->link_mode |= HCI_LM_MASTER;
+	conn->sec_level = BT_SECURITY_LOW;
 	conn->pending_sec_level = sec_level;
 	conn->auth_type = auth_type;
 
-	hci_conn_hold(conn);
+	err = hci_create_le_conn(conn);
+	if (err)
+		return ERR_PTR(err);
 
+done:
+	hci_conn_hold(conn);
 	return conn;
 }
 
-- 
cgit 


From ed1efb2aefbbc6f5a3da5b42158bfb753ba6fe82 Mon Sep 17 00:00:00 2001
From: Steffen Klassert <steffen.klassert@secunet.com>
Date: Mon, 19 Aug 2013 08:07:34 +0200
Subject: ipv6: Add support for IPsec virtual tunnel interfaces

This patch adds IPv6  support for IPsec virtual tunnel interfaces
(vti). IPsec virtual tunnel interfaces provide a routable interface
for IPsec tunnel endpoints.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
 net/ipv6/Kconfig   |   11 +
 net/ipv6/Makefile  |    1 +
 net/ipv6/ip6_vti.c | 1056 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 1068 insertions(+)
 create mode 100644 net/ipv6/ip6_vti.c

diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index 11b13ea69db4..e1a8d903e366 100644
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -153,6 +153,17 @@ config INET6_XFRM_MODE_ROUTEOPTIMIZATION
 	---help---
 	  Support for MIPv6 route optimization mode.
 
+config IPV6_VTI
+tristate "Virtual (secure) IPv6: tunneling"
+	select IPV6_TUNNEL
+	depends on INET6_XFRM_MODE_TUNNEL
+	---help---
+	Tunneling means encapsulating data of one protocol type within
+	another protocol and sending it over a channel that understands the
+	encapsulating protocol. This can be used with xfrm mode tunnel to give
+	the notion of a secure tunnel for IPSEC and then use routing protocol
+	on top.
+
 config IPV6_SIT
 	tristate "IPv6: IPv6-in-IPv4 tunnel (SIT driver)"
 	select INET_TUNNEL
diff --git a/net/ipv6/Makefile b/net/ipv6/Makefile
index 470a9c008e9b..17bb830872db 100644
--- a/net/ipv6/Makefile
+++ b/net/ipv6/Makefile
@@ -36,6 +36,7 @@ obj-$(CONFIG_INET6_XFRM_MODE_BEET) += xfrm6_mode_beet.o
 obj-$(CONFIG_IPV6_MIP6) += mip6.o
 obj-$(CONFIG_NETFILTER)	+= netfilter/
 
+obj-$(CONFIG_IPV6_VTI) += ip6_vti.o
 obj-$(CONFIG_IPV6_SIT) += sit.o
 obj-$(CONFIG_IPV6_TUNNEL) += ip6_tunnel.o
 obj-$(CONFIG_IPV6_GRE) += ip6_gre.o
diff --git a/net/ipv6/ip6_vti.c b/net/ipv6/ip6_vti.c
new file mode 100644
index 000000000000..ed94ba61dda0
--- /dev/null
+++ b/net/ipv6/ip6_vti.c
@@ -0,0 +1,1056 @@
+/*
+ *	IPv6 virtual tunneling interface
+ *
+ *	Copyright (C) 2013 secunet Security Networks AG
+ *
+ *	Author:
+ *	Steffen Klassert <steffen.klassert@secunet.com>
+ *
+ *	Based on:
+ *	net/ipv6/ip6_tunnel.c
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/capability.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/sockios.h>
+#include <linux/icmp.h>
+#include <linux/if.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/if_tunnel.h>
+#include <linux/net.h>
+#include <linux/in6.h>
+#include <linux/netdevice.h>
+#include <linux/if_arp.h>
+#include <linux/icmpv6.h>
+#include <linux/init.h>
+#include <linux/route.h>
+#include <linux/rtnetlink.h>
+#include <linux/netfilter_ipv6.h>
+#include <linux/slab.h>
+#include <linux/hash.h>
+
+#include <linux/uaccess.h>
+#include <linux/atomic.h>
+
+#include <net/icmp.h>
+#include <net/ip.h>
+#include <net/ip_tunnels.h>
+#include <net/ipv6.h>
+#include <net/ip6_route.h>
+#include <net/addrconf.h>
+#include <net/ip6_tunnel.h>
+#include <net/xfrm.h>
+#include <net/net_namespace.h>
+#include <net/netns/generic.h>
+
+#define HASH_SIZE_SHIFT  5
+#define HASH_SIZE (1 << HASH_SIZE_SHIFT)
+
+static u32 HASH(const struct in6_addr *addr1, const struct in6_addr *addr2)
+{
+	u32 hash = ipv6_addr_hash(addr1) ^ ipv6_addr_hash(addr2);
+
+	return hash_32(hash, HASH_SIZE_SHIFT);
+}
+
+static int vti6_dev_init(struct net_device *dev);
+static void vti6_dev_setup(struct net_device *dev);
+static struct rtnl_link_ops vti6_link_ops __read_mostly;
+
+static int vti6_net_id __read_mostly;
+struct vti6_net {
+	/* the vti6 tunnel fallback device */
+	struct net_device *fb_tnl_dev;
+	/* lists for storing tunnels in use */
+	struct ip6_tnl __rcu *tnls_r_l[HASH_SIZE];
+	struct ip6_tnl __rcu *tnls_wc[1];
+	struct ip6_tnl __rcu **tnls[2];
+};
+
+static struct net_device_stats *vti6_get_stats(struct net_device *dev)
+{
+	struct pcpu_tstats sum = { 0 };
+	int i;
+
+	for_each_possible_cpu(i) {
+		const struct pcpu_tstats *tstats = per_cpu_ptr(dev->tstats, i);
+
+		sum.rx_packets += tstats->rx_packets;
+		sum.rx_bytes   += tstats->rx_bytes;
+		sum.tx_packets += tstats->tx_packets;
+		sum.tx_bytes   += tstats->tx_bytes;
+	}
+	dev->stats.rx_packets = sum.rx_packets;
+	dev->stats.rx_bytes   = sum.rx_bytes;
+	dev->stats.tx_packets = sum.tx_packets;
+	dev->stats.tx_bytes   = sum.tx_bytes;
+	return &dev->stats;
+}
+
+#define for_each_vti6_tunnel_rcu(start) \
+	for (t = rcu_dereference(start); t; t = rcu_dereference(t->next))
+
+/**
+ * vti6_tnl_lookup - fetch tunnel matching the end-point addresses
+ *   @net: network namespace
+ *   @remote: the address of the tunnel exit-point
+ *   @local: the address of the tunnel entry-point
+ *
+ * Return:
+ *   tunnel matching given end-points if found,
+ *   else fallback tunnel if its device is up,
+ *   else %NULL
+ **/
+static struct ip6_tnl *
+vti6_tnl_lookup(struct net *net, const struct in6_addr *remote,
+		const struct in6_addr *local)
+{
+	unsigned int hash = HASH(remote, local);
+	struct ip6_tnl *t;
+	struct vti6_net *ip6n = net_generic(net, vti6_net_id);
+
+	for_each_vti6_tunnel_rcu(ip6n->tnls_r_l[hash]) {
+		if (ipv6_addr_equal(local, &t->parms.laddr) &&
+		    ipv6_addr_equal(remote, &t->parms.raddr) &&
+		    (t->dev->flags & IFF_UP))
+			return t;
+	}
+	t = rcu_dereference(ip6n->tnls_wc[0]);
+	if (t && (t->dev->flags & IFF_UP))
+		return t;
+
+	return NULL;
+}
+
+/**
+ * vti6_tnl_bucket - get head of list matching given tunnel parameters
+ *   @p: parameters containing tunnel end-points
+ *
+ * Description:
+ *   vti6_tnl_bucket() returns the head of the list matching the
+ *   &struct in6_addr entries laddr and raddr in @p.
+ *
+ * Return: head of IPv6 tunnel list
+ **/
+static struct ip6_tnl __rcu **
+vti6_tnl_bucket(struct vti6_net *ip6n, const struct __ip6_tnl_parm *p)
+{
+	const struct in6_addr *remote = &p->raddr;
+	const struct in6_addr *local = &p->laddr;
+	unsigned int h = 0;
+	int prio = 0;
+
+	if (!ipv6_addr_any(remote) || !ipv6_addr_any(local)) {
+		prio = 1;
+		h = HASH(remote, local);
+	}
+	return &ip6n->tnls[prio][h];
+}
+
+static void
+vti6_tnl_link(struct vti6_net *ip6n, struct ip6_tnl *t)
+{
+	struct ip6_tnl __rcu **tp = vti6_tnl_bucket(ip6n, &t->parms);
+
+	rcu_assign_pointer(t->next , rtnl_dereference(*tp));
+	rcu_assign_pointer(*tp, t);
+}
+
+static void
+vti6_tnl_unlink(struct vti6_net *ip6n, struct ip6_tnl *t)
+{
+	struct ip6_tnl __rcu **tp;
+	struct ip6_tnl *iter;
+
+	for (tp = vti6_tnl_bucket(ip6n, &t->parms);
+	     (iter = rtnl_dereference(*tp)) != NULL;
+	     tp = &iter->next) {
+		if (t == iter) {
+			rcu_assign_pointer(*tp, t->next);
+			break;
+		}
+	}
+}
+
+static void vti6_dev_free(struct net_device *dev)
+{
+	free_percpu(dev->tstats);
+	free_netdev(dev);
+}
+
+static int vti6_tnl_create2(struct net_device *dev)
+{
+	struct ip6_tnl *t = netdev_priv(dev);
+	struct net *net = dev_net(dev);
+	struct vti6_net *ip6n = net_generic(net, vti6_net_id);
+	int err;
+
+	err = vti6_dev_init(dev);
+	if (err < 0)
+		goto out;
+
+	err = register_netdevice(dev);
+	if (err < 0)
+		goto out;
+
+	strcpy(t->parms.name, dev->name);
+	dev->rtnl_link_ops = &vti6_link_ops;
+
+	dev_hold(dev);
+	vti6_tnl_link(ip6n, t);
+
+	return 0;
+
+out:
+	return err;
+}
+
+static struct ip6_tnl *vti6_tnl_create(struct net *net, struct __ip6_tnl_parm *p)
+{
+	struct net_device *dev;
+	struct ip6_tnl *t;
+	char name[IFNAMSIZ];
+	int err;
+
+	if (p->name[0])
+		strlcpy(name, p->name, IFNAMSIZ);
+	else
+		sprintf(name, "ip6_vti%%d");
+
+	dev = alloc_netdev(sizeof(*t), name, vti6_dev_setup);
+	if (dev == NULL)
+		goto failed;
+
+	dev_net_set(dev, net);
+
+	t = netdev_priv(dev);
+	t->parms = *p;
+	t->net = dev_net(dev);
+
+	err = vti6_tnl_create2(dev);
+	if (err < 0)
+		goto failed_free;
+
+	return t;
+
+failed_free:
+	vti6_dev_free(dev);
+failed:
+	return NULL;
+}
+
+/**
+ * vti6_locate - find or create tunnel matching given parameters
+ *   @net: network namespace
+ *   @p: tunnel parameters
+ *   @create: != 0 if allowed to create new tunnel if no match found
+ *
+ * Description:
+ *   vti6_locate() first tries to locate an existing tunnel
+ *   based on @parms. If this is unsuccessful, but @create is set a new
+ *   tunnel device is created and registered for use.
+ *
+ * Return:
+ *   matching tunnel or NULL
+ **/
+static struct ip6_tnl *vti6_locate(struct net *net, struct __ip6_tnl_parm *p,
+				   int create)
+{
+	const struct in6_addr *remote = &p->raddr;
+	const struct in6_addr *local = &p->laddr;
+	struct ip6_tnl __rcu **tp;
+	struct ip6_tnl *t;
+	struct vti6_net *ip6n = net_generic(net, vti6_net_id);
+
+	for (tp = vti6_tnl_bucket(ip6n, p);
+	     (t = rtnl_dereference(*tp)) != NULL;
+	     tp = &t->next) {
+		if (ipv6_addr_equal(local, &t->parms.laddr) &&
+		    ipv6_addr_equal(remote, &t->parms.raddr))
+			return t;
+	}
+	if (!create)
+		return NULL;
+	return vti6_tnl_create(net, p);
+}
+
+/**
+ * vti6_dev_uninit - tunnel device uninitializer
+ *   @dev: the device to be destroyed
+ *
+ * Description:
+ *   vti6_dev_uninit() removes tunnel from its list
+ **/
+static void vti6_dev_uninit(struct net_device *dev)
+{
+	struct ip6_tnl *t = netdev_priv(dev);
+	struct net *net = dev_net(dev);
+	struct vti6_net *ip6n = net_generic(net, vti6_net_id);
+
+	if (dev == ip6n->fb_tnl_dev)
+		RCU_INIT_POINTER(ip6n->tnls_wc[0], NULL);
+	else
+		vti6_tnl_unlink(ip6n, t);
+	ip6_tnl_dst_reset(t);
+	dev_put(dev);
+}
+
+static int vti6_rcv(struct sk_buff *skb)
+{
+	struct ip6_tnl *t;
+	const struct ipv6hdr *ipv6h = ipv6_hdr(skb);
+
+	rcu_read_lock();
+
+	if ((t = vti6_tnl_lookup(dev_net(skb->dev), &ipv6h->saddr,
+				 &ipv6h->daddr)) != NULL) {
+		struct pcpu_tstats *tstats;
+
+		if (t->parms.proto != IPPROTO_IPV6 && t->parms.proto != 0) {
+			rcu_read_unlock();
+			goto discard;
+		}
+
+		if (!xfrm6_policy_check(NULL, XFRM_POLICY_IN, skb)) {
+			rcu_read_unlock();
+			return 0;
+		}
+
+		if (!ip6_tnl_rcv_ctl(t, &ipv6h->daddr, &ipv6h->saddr)) {
+			t->dev->stats.rx_dropped++;
+			rcu_read_unlock();
+			goto discard;
+		}
+
+		tstats = this_cpu_ptr(t->dev->tstats);
+		tstats->rx_packets++;
+		tstats->rx_bytes += skb->len;
+
+		skb->mark = 0;
+		secpath_reset(skb);
+		skb->dev = t->dev;
+
+		rcu_read_unlock();
+		return 0;
+	}
+	rcu_read_unlock();
+	return 1;
+
+discard:
+	kfree_skb(skb);
+	return 0;
+}
+
+/**
+ * vti6_addr_conflict - compare packet addresses to tunnel's own
+ *   @t: the outgoing tunnel device
+ *   @hdr: IPv6 header from the incoming packet
+ *
+ * Description:
+ *   Avoid trivial tunneling loop by checking that tunnel exit-point
+ *   doesn't match source of incoming packet.
+ *
+ * Return:
+ *   1 if conflict,
+ *   0 else
+ **/
+static inline bool
+vti6_addr_conflict(const struct ip6_tnl *t, const struct ipv6hdr *hdr)
+{
+	return ipv6_addr_equal(&t->parms.raddr, &hdr->saddr);
+}
+
+/**
+ * vti6_xmit - send a packet
+ *   @skb: the outgoing socket buffer
+ *   @dev: the outgoing tunnel device
+ **/
+static int vti6_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct net *net = dev_net(dev);
+	struct ip6_tnl *t = netdev_priv(dev);
+	struct net_device_stats *stats = &t->dev->stats;
+	struct dst_entry *dst = NULL, *ndst = NULL;
+	struct flowi6 fl6;
+	struct ipv6hdr *ipv6h = ipv6_hdr(skb);
+	struct net_device *tdev;
+	int err = -1;
+
+	if ((t->parms.proto != IPPROTO_IPV6 && t->parms.proto != 0) ||
+	    !ip6_tnl_xmit_ctl(t) || vti6_addr_conflict(t, ipv6h))
+		return err;
+
+	dst = ip6_tnl_dst_check(t);
+	if (!dst) {
+		memcpy(&fl6, &t->fl.u.ip6, sizeof(fl6));
+
+		ndst = ip6_route_output(net, NULL, &fl6);
+
+		if (ndst->error)
+			goto tx_err_link_failure;
+		ndst = xfrm_lookup(net, ndst, flowi6_to_flowi(&fl6), NULL, 0);
+		if (IS_ERR(ndst)) {
+			err = PTR_ERR(ndst);
+			ndst = NULL;
+			goto tx_err_link_failure;
+		}
+		dst = ndst;
+	}
+
+	if (!dst->xfrm || dst->xfrm->props.mode != XFRM_MODE_TUNNEL)
+		goto tx_err_link_failure;
+
+	tdev = dst->dev;
+
+	if (tdev == dev) {
+		stats->collisions++;
+		net_warn_ratelimited("%s: Local routing loop detected!\n",
+				     t->parms.name);
+		goto tx_err_dst_release;
+	}
+
+
+	skb_dst_drop(skb);
+	skb_dst_set_noref(skb, dst);
+
+	ip6tunnel_xmit(skb, dev);
+	if (ndst) {
+		dev->mtu = dst_mtu(ndst);
+		ip6_tnl_dst_store(t, ndst);
+	}
+
+	return 0;
+tx_err_link_failure:
+	stats->tx_carrier_errors++;
+	dst_link_failure(skb);
+tx_err_dst_release:
+	dst_release(ndst);
+	return err;
+}
+
+static netdev_tx_t
+vti6_tnl_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct ip6_tnl *t = netdev_priv(dev);
+	struct net_device_stats *stats = &t->dev->stats;
+	int ret;
+
+	switch (skb->protocol) {
+	case htons(ETH_P_IPV6):
+		ret = vti6_xmit(skb, dev);
+		break;
+	default:
+		goto tx_err;
+	}
+
+	if (ret < 0)
+		goto tx_err;
+
+	return NETDEV_TX_OK;
+
+tx_err:
+	stats->tx_errors++;
+	stats->tx_dropped++;
+	kfree_skb(skb);
+	return NETDEV_TX_OK;
+}
+
+static void vti6_link_config(struct ip6_tnl *t)
+{
+	struct dst_entry *dst;
+	struct net_device *dev = t->dev;
+	struct __ip6_tnl_parm *p = &t->parms;
+	struct flowi6 *fl6 = &t->fl.u.ip6;
+
+	memcpy(dev->dev_addr, &p->laddr, sizeof(struct in6_addr));
+	memcpy(dev->broadcast, &p->raddr, sizeof(struct in6_addr));
+
+	/* Set up flowi template */
+	fl6->saddr = p->laddr;
+	fl6->daddr = p->raddr;
+	fl6->flowi6_oif = p->link;
+	fl6->flowi6_mark = be32_to_cpu(p->i_key);
+	fl6->flowi6_proto = p->proto;
+	fl6->flowlabel = 0;
+
+	p->flags &= ~(IP6_TNL_F_CAP_XMIT | IP6_TNL_F_CAP_RCV |
+		      IP6_TNL_F_CAP_PER_PACKET);
+	p->flags |= ip6_tnl_get_cap(t, &p->laddr, &p->raddr);
+
+	if (p->flags & IP6_TNL_F_CAP_XMIT && p->flags & IP6_TNL_F_CAP_RCV)
+		dev->flags |= IFF_POINTOPOINT;
+	else
+		dev->flags &= ~IFF_POINTOPOINT;
+
+	dev->iflink = p->link;
+
+	if (p->flags & IP6_TNL_F_CAP_XMIT) {
+
+		dst = ip6_route_output(dev_net(dev), NULL, fl6);
+		if (dst->error)
+			return;
+
+		dst = xfrm_lookup(dev_net(dev), dst, flowi6_to_flowi(fl6),
+				  NULL, 0);
+		if (IS_ERR(dst))
+			return;
+
+		if (dst->dev) {
+			dev->hard_header_len = dst->dev->hard_header_len;
+
+			dev->mtu = dst_mtu(dst);
+
+			if (dev->mtu < IPV6_MIN_MTU)
+				dev->mtu = IPV6_MIN_MTU;
+		}
+		dst_release(dst);
+	}
+}
+
+/**
+ * vti6_tnl_change - update the tunnel parameters
+ *   @t: tunnel to be changed
+ *   @p: tunnel configuration parameters
+ *
+ * Description:
+ *   vti6_tnl_change() updates the tunnel parameters
+ **/
+static int
+vti6_tnl_change(struct ip6_tnl *t, const struct __ip6_tnl_parm *p)
+{
+	t->parms.laddr = p->laddr;
+	t->parms.raddr = p->raddr;
+	t->parms.link = p->link;
+	t->parms.i_key = p->i_key;
+	t->parms.o_key = p->o_key;
+	t->parms.proto = p->proto;
+	ip6_tnl_dst_reset(t);
+	vti6_link_config(t);
+	return 0;
+}
+
+static int vti6_update(struct ip6_tnl *t, struct __ip6_tnl_parm *p)
+{
+	struct net *net = dev_net(t->dev);
+	struct vti6_net *ip6n = net_generic(net, vti6_net_id);
+	int err;
+
+	vti6_tnl_unlink(ip6n, t);
+	synchronize_net();
+	err = vti6_tnl_change(t, p);
+	vti6_tnl_link(ip6n, t);
+	netdev_state_change(t->dev);
+	return err;
+}
+
+static void
+vti6_parm_from_user(struct __ip6_tnl_parm *p, const struct ip6_tnl_parm2 *u)
+{
+	p->laddr = u->laddr;
+	p->raddr = u->raddr;
+	p->link = u->link;
+	p->i_key = u->i_key;
+	p->o_key = u->o_key;
+	p->proto = u->proto;
+
+	memcpy(p->name, u->name, sizeof(u->name));
+}
+
+static void
+vti6_parm_to_user(struct ip6_tnl_parm2 *u, const struct __ip6_tnl_parm *p)
+{
+	u->laddr = p->laddr;
+	u->raddr = p->raddr;
+	u->link = p->link;
+	u->i_key = p->i_key;
+	u->o_key = p->o_key;
+	u->proto = p->proto;
+
+	memcpy(u->name, p->name, sizeof(u->name));
+}
+
+/**
+ * vti6_tnl_ioctl - configure vti6 tunnels from userspace
+ *   @dev: virtual device associated with tunnel
+ *   @ifr: parameters passed from userspace
+ *   @cmd: command to be performed
+ *
+ * Description:
+ *   vti6_ioctl() is used for managing vti6 tunnels
+ *   from userspace.
+ *
+ *   The possible commands are the following:
+ *     %SIOCGETTUNNEL: get tunnel parameters for device
+ *     %SIOCADDTUNNEL: add tunnel matching given tunnel parameters
+ *     %SIOCCHGTUNNEL: change tunnel parameters to those given
+ *     %SIOCDELTUNNEL: delete tunnel
+ *
+ *   The fallback device "ip6_vti0", created during module
+ *   initialization, can be used for creating other tunnel devices.
+ *
+ * Return:
+ *   0 on success,
+ *   %-EFAULT if unable to copy data to or from userspace,
+ *   %-EPERM if current process hasn't %CAP_NET_ADMIN set
+ *   %-EINVAL if passed tunnel parameters are invalid,
+ *   %-EEXIST if changing a tunnel's parameters would cause a conflict
+ *   %-ENODEV if attempting to change or delete a nonexisting device
+ **/
+static int
+vti6_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+	int err = 0;
+	struct ip6_tnl_parm2 p;
+	struct __ip6_tnl_parm p1;
+	struct ip6_tnl *t = NULL;
+	struct net *net = dev_net(dev);
+	struct vti6_net *ip6n = net_generic(net, vti6_net_id);
+
+	switch (cmd) {
+	case SIOCGETTUNNEL:
+		if (dev == ip6n->fb_tnl_dev) {
+			if (copy_from_user(&p, ifr->ifr_ifru.ifru_data, sizeof(p))) {
+				err = -EFAULT;
+				break;
+			}
+			vti6_parm_from_user(&p1, &p);
+			t = vti6_locate(net, &p1, 0);
+		} else {
+			memset(&p, 0, sizeof(p));
+		}
+		if (t == NULL)
+			t = netdev_priv(dev);
+		vti6_parm_to_user(&p, &t->parms);
+		if (copy_to_user(ifr->ifr_ifru.ifru_data, &p, sizeof(p)))
+			err = -EFAULT;
+		break;
+	case SIOCADDTUNNEL:
+	case SIOCCHGTUNNEL:
+		err = -EPERM;
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
+			break;
+		err = -EFAULT;
+		if (copy_from_user(&p, ifr->ifr_ifru.ifru_data, sizeof(p)))
+			break;
+		err = -EINVAL;
+		if (p.proto != IPPROTO_IPV6  && p.proto != 0)
+			break;
+		vti6_parm_from_user(&p1, &p);
+		t = vti6_locate(net, &p1, cmd == SIOCADDTUNNEL);
+		if (dev != ip6n->fb_tnl_dev && cmd == SIOCCHGTUNNEL) {
+			if (t != NULL) {
+				if (t->dev != dev) {
+					err = -EEXIST;
+					break;
+				}
+			} else
+				t = netdev_priv(dev);
+
+			err = vti6_update(t, &p1);
+		}
+		if (t) {
+			err = 0;
+			vti6_parm_to_user(&p, &t->parms);
+			if (copy_to_user(ifr->ifr_ifru.ifru_data, &p, sizeof(p)))
+				err = -EFAULT;
+
+		} else
+			err = (cmd == SIOCADDTUNNEL ? -ENOBUFS : -ENOENT);
+		break;
+	case SIOCDELTUNNEL:
+		err = -EPERM;
+		if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
+			break;
+
+		if (dev == ip6n->fb_tnl_dev) {
+			err = -EFAULT;
+			if (copy_from_user(&p, ifr->ifr_ifru.ifru_data, sizeof(p)))
+				break;
+			err = -ENOENT;
+			vti6_parm_from_user(&p1, &p);
+			t = vti6_locate(net, &p1, 0);
+			if (t == NULL)
+				break;
+			err = -EPERM;
+			if (t->dev == ip6n->fb_tnl_dev)
+				break;
+			dev = t->dev;
+		}
+		err = 0;
+		unregister_netdevice(dev);
+		break;
+	default:
+		err = -EINVAL;
+	}
+	return err;
+}
+
+/**
+ * vti6_tnl_change_mtu - change mtu manually for tunnel device
+ *   @dev: virtual device associated with tunnel
+ *   @new_mtu: the new mtu
+ *
+ * Return:
+ *   0 on success,
+ *   %-EINVAL if mtu too small
+ **/
+static int vti6_change_mtu(struct net_device *dev, int new_mtu)
+{
+	if (new_mtu < IPV6_MIN_MTU)
+		return -EINVAL;
+
+	dev->mtu = new_mtu;
+	return 0;
+}
+
+static const struct net_device_ops vti6_netdev_ops = {
+	.ndo_uninit	= vti6_dev_uninit,
+	.ndo_start_xmit = vti6_tnl_xmit,
+	.ndo_do_ioctl	= vti6_ioctl,
+	.ndo_change_mtu = vti6_change_mtu,
+	.ndo_get_stats	= vti6_get_stats,
+};
+
+/**
+ * vti6_dev_setup - setup virtual tunnel device
+ *   @dev: virtual device associated with tunnel
+ *
+ * Description:
+ *   Initialize function pointers and device parameters
+ **/
+static void vti6_dev_setup(struct net_device *dev)
+{
+	struct ip6_tnl *t;
+
+	dev->netdev_ops = &vti6_netdev_ops;
+	dev->destructor = vti6_dev_free;
+
+	dev->type = ARPHRD_TUNNEL6;
+	dev->hard_header_len = LL_MAX_HEADER + sizeof(struct ipv6hdr);
+	dev->mtu = ETH_DATA_LEN;
+	t = netdev_priv(dev);
+	dev->flags |= IFF_NOARP;
+	dev->addr_len = sizeof(struct in6_addr);
+	dev->features |= NETIF_F_NETNS_LOCAL;
+	dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
+}
+
+/**
+ * vti6_dev_init_gen - general initializer for all tunnel devices
+ *   @dev: virtual device associated with tunnel
+ **/
+static inline int vti6_dev_init_gen(struct net_device *dev)
+{
+	struct ip6_tnl *t = netdev_priv(dev);
+
+	t->dev = dev;
+	t->net = dev_net(dev);
+	dev->tstats = alloc_percpu(struct pcpu_tstats);
+	if (!dev->tstats)
+		return -ENOMEM;
+	return 0;
+}
+
+/**
+ * vti6_dev_init - initializer for all non fallback tunnel devices
+ *   @dev: virtual device associated with tunnel
+ **/
+static int vti6_dev_init(struct net_device *dev)
+{
+	struct ip6_tnl *t = netdev_priv(dev);
+	int err = vti6_dev_init_gen(dev);
+
+	if (err)
+		return err;
+	vti6_link_config(t);
+	return 0;
+}
+
+/**
+ * vti6_fb_tnl_dev_init - initializer for fallback tunnel device
+ *   @dev: fallback device
+ *
+ * Return: 0
+ **/
+static int __net_init vti6_fb_tnl_dev_init(struct net_device *dev)
+{
+	struct ip6_tnl *t = netdev_priv(dev);
+	struct net *net = dev_net(dev);
+	struct vti6_net *ip6n = net_generic(net, vti6_net_id);
+	int err = vti6_dev_init_gen(dev);
+
+	if (err)
+		return err;
+
+	t->parms.proto = IPPROTO_IPV6;
+	dev_hold(dev);
+
+	vti6_link_config(t);
+
+	rcu_assign_pointer(ip6n->tnls_wc[0], t);
+	return 0;
+}
+
+static int vti6_validate(struct nlattr *tb[], struct nlattr *data[])
+{
+	return 0;
+}
+
+static void vti6_netlink_parms(struct nlattr *data[],
+			       struct __ip6_tnl_parm *parms)
+{
+	memset(parms, 0, sizeof(*parms));
+
+	if (!data)
+		return;
+
+	if (data[IFLA_VTI_LINK])
+		parms->link = nla_get_u32(data[IFLA_VTI_LINK]);
+
+	if (data[IFLA_VTI_LOCAL])
+		nla_memcpy(&parms->laddr, data[IFLA_VTI_LOCAL],
+			   sizeof(struct in6_addr));
+
+	if (data[IFLA_VTI_REMOTE])
+		nla_memcpy(&parms->raddr, data[IFLA_VTI_REMOTE],
+			   sizeof(struct in6_addr));
+
+	if (data[IFLA_VTI_IKEY])
+		parms->i_key = nla_get_be32(data[IFLA_VTI_IKEY]);
+
+	if (data[IFLA_VTI_OKEY])
+		parms->o_key = nla_get_be32(data[IFLA_VTI_OKEY]);
+}
+
+static int vti6_newlink(struct net *src_net, struct net_device *dev,
+			struct nlattr *tb[], struct nlattr *data[])
+{
+	struct net *net = dev_net(dev);
+	struct ip6_tnl *nt;
+
+	nt = netdev_priv(dev);
+	vti6_netlink_parms(data, &nt->parms);
+
+	nt->parms.proto = IPPROTO_IPV6;
+
+	if (vti6_locate(net, &nt->parms, 0))
+		return -EEXIST;
+
+	return vti6_tnl_create2(dev);
+}
+
+static int vti6_changelink(struct net_device *dev, struct nlattr *tb[],
+			   struct nlattr *data[])
+{
+	struct ip6_tnl *t;
+	struct __ip6_tnl_parm p;
+	struct net *net = dev_net(dev);
+	struct vti6_net *ip6n = net_generic(net, vti6_net_id);
+
+	if (dev == ip6n->fb_tnl_dev)
+		return -EINVAL;
+
+	vti6_netlink_parms(data, &p);
+
+	t = vti6_locate(net, &p, 0);
+
+	if (t) {
+		if (t->dev != dev)
+			return -EEXIST;
+	} else
+		t = netdev_priv(dev);
+
+	return vti6_update(t, &p);
+}
+
+static size_t vti6_get_size(const struct net_device *dev)
+{
+	return
+		/* IFLA_VTI_LINK */
+		nla_total_size(4) +
+		/* IFLA_VTI_LOCAL */
+		nla_total_size(sizeof(struct in6_addr)) +
+		/* IFLA_VTI_REMOTE */
+		nla_total_size(sizeof(struct in6_addr)) +
+		/* IFLA_VTI_IKEY */
+		nla_total_size(4) +
+		/* IFLA_VTI_OKEY */
+		nla_total_size(4) +
+		0;
+}
+
+static int vti6_fill_info(struct sk_buff *skb, const struct net_device *dev)
+{
+	struct ip6_tnl *tunnel = netdev_priv(dev);
+	struct __ip6_tnl_parm *parm = &tunnel->parms;
+
+	if (nla_put_u32(skb, IFLA_VTI_LINK, parm->link) ||
+	    nla_put(skb, IFLA_VTI_LOCAL, sizeof(struct in6_addr),
+		    &parm->laddr) ||
+	    nla_put(skb, IFLA_VTI_REMOTE, sizeof(struct in6_addr),
+		    &parm->raddr) ||
+	    nla_put_be32(skb, IFLA_VTI_IKEY, parm->i_key) ||
+	    nla_put_be32(skb, IFLA_VTI_OKEY, parm->o_key))
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return -EMSGSIZE;
+}
+
+static const struct nla_policy vti6_policy[IFLA_VTI_MAX + 1] = {
+	[IFLA_VTI_LINK]		= { .type = NLA_U32 },
+	[IFLA_VTI_LOCAL]	= { .len = sizeof(struct in6_addr) },
+	[IFLA_VTI_REMOTE]	= { .len = sizeof(struct in6_addr) },
+	[IFLA_VTI_IKEY]		= { .type = NLA_U32 },
+	[IFLA_VTI_OKEY]		= { .type = NLA_U32 },
+};
+
+static struct rtnl_link_ops vti6_link_ops __read_mostly = {
+	.kind		= "vti6",
+	.maxtype	= IFLA_VTI_MAX,
+	.policy		= vti6_policy,
+	.priv_size	= sizeof(struct ip6_tnl),
+	.setup		= vti6_dev_setup,
+	.validate	= vti6_validate,
+	.newlink	= vti6_newlink,
+	.changelink	= vti6_changelink,
+	.get_size	= vti6_get_size,
+	.fill_info	= vti6_fill_info,
+};
+
+static struct xfrm_tunnel_notifier vti6_handler __read_mostly = {
+	.handler	= vti6_rcv,
+	.priority	=	1,
+};
+
+static void __net_exit vti6_destroy_tunnels(struct vti6_net *ip6n)
+{
+	int h;
+	struct ip6_tnl *t;
+	LIST_HEAD(list);
+
+	for (h = 0; h < HASH_SIZE; h++) {
+		t = rtnl_dereference(ip6n->tnls_r_l[h]);
+		while (t != NULL) {
+			unregister_netdevice_queue(t->dev, &list);
+			t = rtnl_dereference(t->next);
+		}
+	}
+
+	t = rtnl_dereference(ip6n->tnls_wc[0]);
+	unregister_netdevice_queue(t->dev, &list);
+	unregister_netdevice_many(&list);
+}
+
+static int __net_init vti6_init_net(struct net *net)
+{
+	struct vti6_net *ip6n = net_generic(net, vti6_net_id);
+	struct ip6_tnl *t = NULL;
+	int err;
+
+	ip6n->tnls[0] = ip6n->tnls_wc;
+	ip6n->tnls[1] = ip6n->tnls_r_l;
+
+	err = -ENOMEM;
+	ip6n->fb_tnl_dev = alloc_netdev(sizeof(struct ip6_tnl), "ip6_vti0",
+					vti6_dev_setup);
+
+	if (!ip6n->fb_tnl_dev)
+		goto err_alloc_dev;
+	dev_net_set(ip6n->fb_tnl_dev, net);
+
+	err = vti6_fb_tnl_dev_init(ip6n->fb_tnl_dev);
+	if (err < 0)
+		goto err_register;
+
+	err = register_netdev(ip6n->fb_tnl_dev);
+	if (err < 0)
+		goto err_register;
+
+	t = netdev_priv(ip6n->fb_tnl_dev);
+
+	strcpy(t->parms.name, ip6n->fb_tnl_dev->name);
+	return 0;
+
+err_register:
+	vti6_dev_free(ip6n->fb_tnl_dev);
+err_alloc_dev:
+	return err;
+}
+
+static void __net_exit vti6_exit_net(struct net *net)
+{
+	struct vti6_net *ip6n = net_generic(net, vti6_net_id);
+
+	rtnl_lock();
+	vti6_destroy_tunnels(ip6n);
+	rtnl_unlock();
+}
+
+static struct pernet_operations vti6_net_ops = {
+	.init = vti6_init_net,
+	.exit = vti6_exit_net,
+	.id   = &vti6_net_id,
+	.size = sizeof(struct vti6_net),
+};
+
+/**
+ * vti6_tunnel_init - register protocol and reserve needed resources
+ *
+ * Return: 0 on success
+ **/
+static int __init vti6_tunnel_init(void)
+{
+	int  err;
+
+	err = register_pernet_device(&vti6_net_ops);
+	if (err < 0)
+		goto out_pernet;
+
+	err = xfrm6_mode_tunnel_input_register(&vti6_handler);
+	if (err < 0) {
+		pr_err("%s: can't register vti6\n", __func__);
+		goto out;
+	}
+	err = rtnl_link_register(&vti6_link_ops);
+	if (err < 0)
+		goto rtnl_link_failed;
+
+	return 0;
+
+rtnl_link_failed:
+	xfrm6_mode_tunnel_input_deregister(&vti6_handler);
+out:
+	unregister_pernet_device(&vti6_net_ops);
+out_pernet:
+	return err;
+}
+
+/**
+ * vti6_tunnel_cleanup - free resources and unregister protocol
+ **/
+static void __exit vti6_tunnel_cleanup(void)
+{
+	rtnl_link_unregister(&vti6_link_ops);
+	if (xfrm6_mode_tunnel_input_deregister(&vti6_handler))
+		pr_info("%s: can't deregister vti6\n", __func__);
+
+	unregister_pernet_device(&vti6_net_ops);
+}
+
+module_init(vti6_tunnel_init);
+module_exit(vti6_tunnel_cleanup);
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_RTNL_LINK("vti6");
+MODULE_ALIAS_NETDEV("ip6_vti0");
+MODULE_AUTHOR("Steffen Klassert");
+MODULE_DESCRIPTION("IPv6 virtual tunnel interface");
-- 
cgit 


From cb52c673f8adc4a1cba7b645ff5375b57dae21fa Mon Sep 17 00:00:00 2001
From: Hiep Cao Minh <cm-hiep@jinso.co.jp>
Date: Thu, 10 Oct 2013 17:14:03 +0900
Subject: spi/rspi: Fix 8bit data access, clear buffer

The R8A7790 has QSPI module which added into RSPI together.
The transmit or receive data should be read from or written to
with the longword-, word-, or byte-access width. Modify word-
access to byte-access. In 16-bit data register, QSPI send or
receive datas access from high 8-bit while RSPI send or receive
datas access from low 8-bit on single mode.
Modify to reset transmit-receive buffer data and reading dummy
after data are transmited. RSPI has a TXMD bit on control
register(SPCR) to set transmit-only mode when transmit data or
Full-duplex synchronous mode when receive data. In QSPI the TXMD
bit is not supported, so after transmit data, dummy should be
read and before transmit or receive data the bufer register
should be reset.
This driver is the implementation of send and receive pio only,
DMA is not supported at this time.
Without this patch, it will occur error when transmit and receive

Signed-off-by: Hiep Cao Minh <cm-hiep@jinso.co.jp>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-rspi.c | 95 ++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 93 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c
index 4c8dbac11b42..58449ad4ad0d 100644
--- a/drivers/spi/spi-rspi.c
+++ b/drivers/spi/spi-rspi.c
@@ -198,6 +198,11 @@ static u16 rspi_read16(struct rspi_data *rspi, u16 offset)
 /* optional functions */
 struct spi_ops {
 	int (*set_config_register)(struct rspi_data *rspi, int access_size);
+	int (*send_pio)(struct rspi_data *rspi, struct spi_message *mesg,
+			struct spi_transfer *t);
+	int (*receive_pio)(struct rspi_data *rspi, struct spi_message *mesg,
+			   struct spi_transfer *t);
+
 };
 
 /*
@@ -349,6 +354,43 @@ static int rspi_send_pio(struct rspi_data *rspi, struct spi_message *mesg,
 	return 0;
 }
 
+static int qspi_send_pio(struct rspi_data *rspi, struct spi_message *mesg,
+			 struct spi_transfer *t)
+{
+	int remain = t->len;
+	u8 *data;
+
+	rspi_write8(rspi, SPBFCR_TXRST, QSPI_SPBFCR);
+	rspi_write8(rspi, 0x00, QSPI_SPBFCR);
+
+	data = (u8 *)t->tx_buf;
+	while (remain > 0) {
+
+		if (rspi_wait_for_interrupt(rspi, SPSR_SPTEF, SPCR_SPTIE) < 0) {
+			dev_err(&rspi->master->dev,
+				"%s: tx empty timeout\n", __func__);
+			return -ETIMEDOUT;
+		}
+		rspi_write8(rspi, *data++, RSPI_SPDR);
+
+		if (rspi_wait_for_interrupt(rspi, SPSR_SPRF, SPCR_SPRIE) < 0) {
+			dev_err(&rspi->master->dev,
+				"%s: receive timeout\n", __func__);
+			return -ETIMEDOUT;
+		}
+		rspi_read8(rspi, RSPI_SPDR);
+
+		remain--;
+	}
+
+	/* Waiting for the last transmition */
+	rspi_wait_for_interrupt(rspi, SPSR_SPTEF, SPCR_SPTIE);
+
+	return 0;
+}
+
+#define send_pio(spi, mesg, t) spi->ops->send_pio(spi, mesg, t)
+
 static void rspi_dma_complete(void *arg)
 {
 	struct rspi_data *rspi = arg;
@@ -514,6 +556,51 @@ static int rspi_receive_pio(struct rspi_data *rspi, struct spi_message *mesg,
 	return 0;
 }
 
+static void qspi_receive_init(struct rspi_data *rspi)
+{
+	unsigned char spsr;
+
+	spsr = rspi_read8(rspi, RSPI_SPSR);
+	if (spsr & SPSR_SPRF)
+		rspi_read8(rspi, RSPI_SPDR);   /* dummy read */
+	rspi_write8(rspi, SPBFCR_TXRST | SPBFCR_RXRST, QSPI_SPBFCR);
+	rspi_write8(rspi, 0x00, QSPI_SPBFCR);
+}
+
+static int qspi_receive_pio(struct rspi_data *rspi, struct spi_message *mesg,
+			    struct spi_transfer *t)
+{
+	int remain = t->len;
+	u8 *data;
+
+	qspi_receive_init(rspi);
+
+	data = (u8 *)t->rx_buf;
+	while (remain > 0) {
+
+		if (rspi_wait_for_interrupt(rspi, SPSR_SPTEF, SPCR_SPTIE) < 0) {
+			dev_err(&rspi->master->dev,
+				"%s: tx empty timeout\n", __func__);
+			return -ETIMEDOUT;
+		}
+		/* dummy write for generate clock */
+		rspi_write8(rspi, 0x00, RSPI_SPDR);
+
+		if (rspi_wait_for_interrupt(rspi, SPSR_SPRF, SPCR_SPRIE) < 0) {
+			dev_err(&rspi->master->dev,
+				"%s: receive timeout\n", __func__);
+			return -ETIMEDOUT;
+		}
+		/* SPDR allows 8, 16 or 32-bit access */
+		*data++ = rspi_read8(rspi, RSPI_SPDR);
+		remain--;
+	}
+
+	return 0;
+}
+
+#define receive_pio(spi, mesg, t) spi->ops->receive_pio(spi, mesg, t)
+
 static int rspi_receive_dma(struct rspi_data *rspi, struct spi_transfer *t)
 {
 	struct scatterlist sg, sg_dummy;
@@ -653,7 +740,7 @@ static void rspi_work(struct work_struct *work)
 				if (rspi_is_dma(rspi, t))
 					ret = rspi_send_dma(rspi, t);
 				else
-					ret = rspi_send_pio(rspi, mesg, t);
+					ret = send_pio(rspi, mesg, t);
 				if (ret < 0)
 					goto error;
 			}
@@ -661,7 +748,7 @@ static void rspi_work(struct work_struct *work)
 				if (rspi_is_dma(rspi, t))
 					ret = rspi_receive_dma(rspi, t);
 				else
-					ret = rspi_receive_pio(rspi, mesg, t);
+					ret = receive_pio(rspi, mesg, t);
 				if (ret < 0)
 					goto error;
 			}
@@ -918,10 +1005,14 @@ error1:
 
 static struct spi_ops rspi_ops = {
 	.set_config_register =		rspi_set_config_register,
+	.send_pio =			rspi_send_pio,
+	.receive_pio =			rspi_receive_pio,
 };
 
 static struct spi_ops qspi_ops = {
 	.set_config_register =		qspi_set_config_register,
+	.send_pio =			qspi_send_pio,
+	.receive_pio =			qspi_receive_pio,
 };
 
 static struct platform_device_id spi_driver_ids[] = {
-- 
cgit 


From 72ef0c1a9e62c3dd3b4841c8c8a1f259bf7b5d94 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 03:08:10 -0700
Subject: Bluetooth: Remove unneeded val variable when setting SSP

The variable val in the set_ssp() function of the management interface
is not needed. Just use cp->val directly since its input values have
already been validated.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index a9d7506be1a3..2fb4d35e04dc 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1290,7 +1290,7 @@ static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 {
 	struct mgmt_mode *cp = data;
 	struct pending_cmd *cmd;
-	u8 val, status;
+	u8 status;
 	int err;
 
 	BT_DBG("request for %s", hdev->name);
@@ -1309,8 +1309,6 @@ static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 
 	hci_dev_lock(hdev);
 
-	val = !!cp->val;
-
 	if (!hdev_is_powered(hdev)) {
 		bool changed = false;
 
@@ -1335,7 +1333,7 @@ static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 		goto failed;
 	}
 
-	if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) == val) {
+	if (!!cp->val == test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) {
 		err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev);
 		goto failed;
 	}
@@ -1346,7 +1344,7 @@ static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 		goto failed;
 	}
 
-	err = hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, sizeof(val), &val);
+	err = hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, 1, &cp->val);
 	if (err < 0) {
 		mgmt_pending_remove(cmd);
 		goto failed;
-- 
cgit 


From 9ecb3e24258f1ff4b9937602962ae12e3b57f98d Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 03:08:11 -0700
Subject: Bluetooth: Restrict high speed support to SSP enabled controllers

The support for Bluetooth High Speed can only be enabled on controllers
where also Secure Simple Pairing has been enabled. Trying to enable
high speed when SSP is disabled will result into an error. Disabling
SSP will at the same time disable high speed as well.

It is required to enforce this dependency on SSP since high speed
support is only defined for authenticated, unauthenticated and
debug link keys. These link key types require SSP.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 42 ++++++++++++++++++++++++++++++++----------
 1 file changed, 32 insertions(+), 10 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 2fb4d35e04dc..e7ffd39100a0 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1310,11 +1310,19 @@ static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 	hci_dev_lock(hdev);
 
 	if (!hdev_is_powered(hdev)) {
-		bool changed = false;
+		bool changed;
 
-		if (val != test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) {
-			change_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
-			changed = true;
+		if (cp->val) {
+			changed = !test_and_set_bit(HCI_SSP_ENABLED,
+						    &hdev->dev_flags);
+		} else {
+			changed = test_and_clear_bit(HCI_SSP_ENABLED,
+						     &hdev->dev_flags);
+			if (!changed)
+				changed = test_and_clear_bit(HCI_HS_ENABLED,
+							     &hdev->dev_flags);
+			else
+				clear_bit(HCI_HS_ENABLED, &hdev->dev_flags);
 		}
 
 		err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev);
@@ -1327,7 +1335,8 @@ static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 		goto failed;
 	}
 
-	if (mgmt_pending_find(MGMT_OP_SET_SSP, hdev)) {
+	if (mgmt_pending_find(MGMT_OP_SET_SSP, hdev) ||
+	    mgmt_pending_find(MGMT_OP_SET_HS, hdev)) {
 		err = cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
 				 MGMT_STATUS_BUSY);
 		goto failed;
@@ -1368,6 +1377,14 @@ static int set_hs(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 	if (status)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_HS, status);
 
+	if (!lmp_ssp_capable(hdev))
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
+				  MGMT_STATUS_NOT_SUPPORTED);
+
+	if (!test_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
+				  MGMT_STATUS_REJECTED);
+
 	if (cp->val != 0x00 && cp->val != 0x01)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
 				  MGMT_STATUS_INVALID_PARAMS);
@@ -4403,8 +4420,10 @@ int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
 		u8 mgmt_err = mgmt_status(status);
 
 		if (enable && test_and_clear_bit(HCI_SSP_ENABLED,
-						 &hdev->dev_flags))
+						 &hdev->dev_flags)) {
+			clear_bit(HCI_HS_ENABLED, &hdev->dev_flags);
 			err = new_settings(hdev, NULL);
+		}
 
 		mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, cmd_status_rsp,
 				     &mgmt_err);
@@ -4413,11 +4432,14 @@ int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
 	}
 
 	if (enable) {
-		if (!test_and_set_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
-			changed = true;
+		changed = !test_and_set_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
 	} else {
-		if (test_and_clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
-			changed = true;
+		changed = test_and_clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
+		if (!changed)
+			changed = test_and_clear_bit(HCI_HS_ENABLED,
+						     &hdev->dev_flags);
+		else
+			clear_bit(HCI_HS_ENABLED, &hdev->dev_flags);
 	}
 
 	mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, settings_rsp, &match);
-- 
cgit 


From eb270e98e15b9f4303b074ba5d88ee98110bc451 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 9 Oct 2013 13:52:52 +0100
Subject: ASoC: dapm: Use async I/O for DAPM sequences

Within a DAPM sequence we normally don't care about when exactly a register
write has completed so long as they happen in the order we requested. This
means that we can issue most of the writes we do asynchronously which
should maximise the ability of the underlying frameworks to keep the
hardware busy, providing a small performance improvement on some systems.

We currently ensure that all writes are completed both when changing to a
different device and when calling into the regulator and clock frameworks.
This should ensure that the previous ordering is maintained.

We also ensure that writes are completed prior to calling into widget
event functions since some event functions implement delays.  This
should be improved in future so that widgets can disable this sync in
order to add extra writes.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/soc-dapm.c | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 9273216f22fc..1dbc5f8cdc98 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -409,6 +409,12 @@ static inline void soc_widget_unlock(struct snd_soc_dapm_widget *w)
 		mutex_unlock(&w->platform->mutex);
 }
 
+static void soc_dapm_async_complete(struct snd_soc_dapm_context *dapm)
+{
+	if (dapm->codec && dapm->codec->using_regmap)
+		regmap_async_complete(dapm->codec->control_data);
+}
+
 static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w,
 	unsigned short reg, unsigned int mask, unsigned int value)
 {
@@ -417,8 +423,9 @@ static int soc_widget_update_bits_locked(struct snd_soc_dapm_widget *w,
 	int ret;
 
 	if (w->codec && w->codec->using_regmap) {
-		ret = regmap_update_bits_check(w->codec->control_data,
-					       reg, mask, value, &change);
+		ret = regmap_update_bits_check_async(w->codec->control_data,
+						     reg, mask, value,
+						     &change);
 		if (ret != 0)
 			return ret;
 	} else {
@@ -1201,6 +1208,8 @@ int dapm_regulator_event(struct snd_soc_dapm_widget *w,
 {
 	int ret;
 
+	soc_dapm_async_complete(w->dapm);
+
 	if (SND_SOC_DAPM_EVENT_ON(event)) {
 		if (w->on_val & SND_SOC_DAPM_REGULATOR_BYPASS) {
 			ret = regulator_allow_bypass(w->regulator, false);
@@ -1234,6 +1243,8 @@ int dapm_clock_event(struct snd_soc_dapm_widget *w,
 	if (!w->clk)
 		return -EIO;
 
+	soc_dapm_async_complete(w->dapm);
+
 #ifdef CONFIG_HAVE_CLK
 	if (SND_SOC_DAPM_EVENT_ON(event)) {
 		return clk_prepare_enable(w->clk);
@@ -1426,6 +1437,7 @@ static void dapm_seq_check_event(struct snd_soc_card *card,
 	if (w->event && (w->event_flags & event)) {
 		pop_dbg(w->dapm->dev, card->pop_time, "pop test : %s %s\n",
 			w->name, ev_name);
+		soc_dapm_async_complete(w->dapm);
 		trace_snd_soc_dapm_widget_event_start(w, event);
 		ret = w->event(w, NULL, event);
 		trace_snd_soc_dapm_widget_event_done(w, event);
@@ -1498,6 +1510,7 @@ static void dapm_seq_run(struct snd_soc_card *card,
 	struct list_head *list, int event, bool power_up)
 {
 	struct snd_soc_dapm_widget *w, *n;
+	struct snd_soc_dapm_context *d;
 	LIST_HEAD(pending);
 	int cur_sort = -1;
 	int cur_subseq = -1;
@@ -1528,6 +1541,9 @@ static void dapm_seq_run(struct snd_soc_card *card,
 								       cur_subseq);
 			}
 
+			if (cur_dapm && w->dapm != cur_dapm)
+				soc_dapm_async_complete(cur_dapm);
+
 			INIT_LIST_HEAD(&pending);
 			cur_sort = -1;
 			cur_subseq = INT_MIN;
@@ -1586,6 +1602,10 @@ static void dapm_seq_run(struct snd_soc_card *card,
 				cur_dapm->seq_notifier(cur_dapm,
 						       i, cur_subseq);
 	}
+
+	list_for_each_entry(d, &card->dapm_list, list) {
+		soc_dapm_async_complete(d);
+	}
 }
 
 static void dapm_widget_update(struct snd_soc_card *card)
-- 
cgit 


From 1dd275b60e5db4d0bb3763490b519176dcfc4308 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 9 Oct 2013 13:56:37 +0100
Subject: ASoC: dapm: Run clock and regulator events separately to other
 supplies

In order to avoid trying to use an external clock or supply for an
on-chip supply prior to it being enabled move the clock and regulator
supply events to a separate step in DAPM sequencing from normal supply
events.

This should have minimal practical impact since these widgets are sorted
using SND_SOC_NOPM which is a negative value and hence sorted
separately to any real register writes, though it may be relevant if
supplies have event callbacks only.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/soc-dapm.c | 50 +++++++++++++++++++++++++-------------------------
 1 file changed, 25 insertions(+), 25 deletions(-)

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 1dbc5f8cdc98..2fb0b72d8a3c 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -59,31 +59,31 @@ snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm,
 /* dapm power sequences - make this per codec in the future */
 static int dapm_up_seq[] = {
 	[snd_soc_dapm_pre] = 0,
-	[snd_soc_dapm_supply] = 1,
 	[snd_soc_dapm_regulator_supply] = 1,
 	[snd_soc_dapm_clock_supply] = 1,
-	[snd_soc_dapm_micbias] = 2,
+	[snd_soc_dapm_supply] = 2,
+	[snd_soc_dapm_micbias] = 3,
 	[snd_soc_dapm_dai_link] = 2,
-	[snd_soc_dapm_dai_in] = 3,
-	[snd_soc_dapm_dai_out] = 3,
-	[snd_soc_dapm_aif_in] = 3,
-	[snd_soc_dapm_aif_out] = 3,
-	[snd_soc_dapm_mic] = 4,
-	[snd_soc_dapm_mux] = 5,
-	[snd_soc_dapm_virt_mux] = 5,
-	[snd_soc_dapm_value_mux] = 5,
-	[snd_soc_dapm_dac] = 6,
-	[snd_soc_dapm_switch] = 7,
-	[snd_soc_dapm_mixer] = 7,
-	[snd_soc_dapm_mixer_named_ctl] = 7,
-	[snd_soc_dapm_pga] = 8,
-	[snd_soc_dapm_adc] = 9,
-	[snd_soc_dapm_out_drv] = 10,
-	[snd_soc_dapm_hp] = 10,
-	[snd_soc_dapm_spk] = 10,
-	[snd_soc_dapm_line] = 10,
-	[snd_soc_dapm_kcontrol] = 11,
-	[snd_soc_dapm_post] = 12,
+	[snd_soc_dapm_dai_in] = 4,
+	[snd_soc_dapm_dai_out] = 4,
+	[snd_soc_dapm_aif_in] = 4,
+	[snd_soc_dapm_aif_out] = 4,
+	[snd_soc_dapm_mic] = 5,
+	[snd_soc_dapm_mux] = 6,
+	[snd_soc_dapm_virt_mux] = 6,
+	[snd_soc_dapm_value_mux] = 6,
+	[snd_soc_dapm_dac] = 7,
+	[snd_soc_dapm_switch] = 8,
+	[snd_soc_dapm_mixer] = 8,
+	[snd_soc_dapm_mixer_named_ctl] = 8,
+	[snd_soc_dapm_pga] = 9,
+	[snd_soc_dapm_adc] = 10,
+	[snd_soc_dapm_out_drv] = 11,
+	[snd_soc_dapm_hp] = 11,
+	[snd_soc_dapm_spk] = 11,
+	[snd_soc_dapm_line] = 11,
+	[snd_soc_dapm_kcontrol] = 12,
+	[snd_soc_dapm_post] = 13,
 };
 
 static int dapm_down_seq[] = {
@@ -109,10 +109,10 @@ static int dapm_down_seq[] = {
 	[snd_soc_dapm_dai_in] = 10,
 	[snd_soc_dapm_dai_out] = 10,
 	[snd_soc_dapm_dai_link] = 11,
-	[snd_soc_dapm_clock_supply] = 12,
-	[snd_soc_dapm_regulator_supply] = 12,
 	[snd_soc_dapm_supply] = 12,
-	[snd_soc_dapm_post] = 13,
+	[snd_soc_dapm_clock_supply] = 13,
+	[snd_soc_dapm_regulator_supply] = 13,
+	[snd_soc_dapm_post] = 14,
 };
 
 static void pop_wait(u32 pop_time)
-- 
cgit 


From c4e5bafa661126b7b42459ad32d4c2cc589ef8fb Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Thu, 10 Oct 2013 13:33:37 +0200
Subject: Bluetooth: Fix potential double-frees of L2CAP skbs

The l2cap_recv_frame function is expected to take ownership and
eventually free the skb passed to it. We need to ensure that the
conn->rx_skb pointer is no longer reachable when calling
l2cap_recv_frame so that no other function, such as l2cap_conn_del, may
think that it can free conn->rx_skb.

An actual situation when this can happen is when smp_sig_channel (called
from l2cap_recv_frame) fails and l2cap_conn_del gets called as a
consequence. The l2cap_conn_del function would then try to free
conn->rx_skb, but as the same skb was just passed to smp_sig_channel and
freed we get a double-free.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/l2cap_core.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index a9a7df6639a7..06e7173c2d13 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -6798,9 +6798,13 @@ int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags)
 		conn->rx_len -= skb->len;
 
 		if (!conn->rx_len) {
-			/* Complete frame received */
-			l2cap_recv_frame(conn, conn->rx_skb);
+			/* Complete frame received. l2cap_recv_frame
+			 * takes ownership of the skb so set the global
+			 * rx_skb pointer to NULL first.
+			 */
+			struct sk_buff *rx_skb = conn->rx_skb;
 			conn->rx_skb = NULL;
+			l2cap_recv_frame(conn, rx_skb);
 		}
 		break;
 	}
-- 
cgit 


From 3ad674d6c6c5724c83f10f422d826420c83536cd Mon Sep 17 00:00:00 2001
From: Alexey Neyman <stilor@att.net>
Date: Wed, 9 Oct 2013 16:16:38 -0600
Subject: x86/PCI: Coalesce multiple overlapping host bridge windows

Previously we coalesced windows by expanding the first overlapping one and
making the second invalid.  But we never look at the expanded first window
again, so we fail to notice other windows that overlap it.  For example, we
coalesced these:

  [io  0x0000-0x03af] // #0
  [io  0x03e0-0x0cf7] // #1
  [io  0x0000-0xdfff] // #2

into these, which still overlap:

  [io  0x0000-0xdfff] // #0
  [io  0x03e0-0x0cf7] // #1

The fix is to expand the *second* overlapping resource and ignore the
first, so we get this instead with no overlaps:

  [io  0x0000-0xdfff] // #2

[bhelgaas: changelog]
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=62511
Signed-off-by: Alexey Neyman <stilor@att.net>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 arch/x86/pci/acpi.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index b30e937689d6..7fb24e53d4c8 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -354,12 +354,12 @@ static void coalesce_windows(struct pci_root_info *info, unsigned long type)
 			 * the kernel resource tree doesn't allow overlaps.
 			 */
 			if (resource_overlaps(res1, res2)) {
-				res1->start = min(res1->start, res2->start);
-				res1->end = max(res1->end, res2->end);
+				res2->start = min(res1->start, res2->start);
+				res2->end = max(res1->end, res2->end);
 				dev_info(&info->bridge->dev,
 					 "host bridge window expanded to %pR; %pR ignored\n",
-					 res1, res2);
-				res2->flags = 0;
+					 res2, res1);
+				res1->flags = 0;
 			}
 		}
 	}
-- 
cgit 


From 1b65c4e5a9af1a1c61e792e2d0ed481e0c1f21a9 Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Thu, 10 Oct 2013 13:41:10 +0000
Subject: swiotlb-xen: use xen_alloc/free_coherent_pages

Use xen_alloc_coherent_pages and xen_free_coherent_pages to allocate or
free coherent pages.

We need to be careful handling the pointer returned by
xen_alloc_coherent_pages, because on ARM the pointer is not equal to
phys_to_virt(*dma_handle). In fact virt_to_phys only works for kernel
direct mapped RAM memory.
In ARM case the pointer could be an ioremap address, therefore passing
it to virt_to_phys would give you another physical address that doesn't
correspond to it.

Make xen_create_contiguous_region take a phys_addr_t as start parameter to
avoid the virt_to_phys calls which would be incorrect.

Changes in v6:
- remove extra spaces.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
 arch/arm/xen/mm.c         |  6 +++---
 arch/x86/xen/mmu.c        |  7 +++++--
 drivers/xen/swiotlb-xen.c | 31 +++++++++++++++++++++----------
 include/xen/xen-ops.h     |  4 ++--
 4 files changed, 31 insertions(+), 17 deletions(-)

diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c
index 0d69b874d249..b0e77de99148 100644
--- a/arch/arm/xen/mm.c
+++ b/arch/arm/xen/mm.c
@@ -16,7 +16,7 @@
 #include <asm/xen/hypercall.h>
 #include <asm/xen/interface.h>
 
-int xen_create_contiguous_region(unsigned long vstart, unsigned int order,
+int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order,
 				 unsigned int address_bits,
 				 dma_addr_t *dma_handle)
 {
@@ -24,12 +24,12 @@ int xen_create_contiguous_region(unsigned long vstart, unsigned int order,
 		return -EINVAL;
 
 	/* we assume that dom0 is mapped 1:1 for now */
-	*dma_handle = virt_to_phys(pstart);
+	*dma_handle = pstart;
 	return 0;
 }
 EXPORT_SYMBOL_GPL(xen_create_contiguous_region);
 
-void xen_destroy_contiguous_region(unsigned long vstart, unsigned int order)
+void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order)
 {
 	return;
 }
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 6c34d7c03d5b..883088368ff0 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -2328,13 +2328,14 @@ static int xen_exchange_memory(unsigned long extents_in, unsigned int order_in,
 	return success;
 }
 
-int xen_create_contiguous_region(unsigned long vstart, unsigned int order,
+int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order,
 				 unsigned int address_bits,
 				 dma_addr_t *dma_handle)
 {
 	unsigned long *in_frames = discontig_frames, out_frame;
 	unsigned long  flags;
 	int            success;
+	unsigned long vstart = (unsigned long)phys_to_virt(pstart);
 
 	/*
 	 * Currently an auto-translated guest will not perform I/O, nor will
@@ -2374,11 +2375,12 @@ int xen_create_contiguous_region(unsigned long vstart, unsigned int order,
 }
 EXPORT_SYMBOL_GPL(xen_create_contiguous_region);
 
-void xen_destroy_contiguous_region(unsigned long vstart, unsigned int order)
+void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order)
 {
 	unsigned long *out_frames = discontig_frames, in_frame;
 	unsigned long  flags;
 	int success;
+	unsigned long vstart;
 
 	if (xen_feature(XENFEAT_auto_translated_physmap))
 		return;
@@ -2386,6 +2388,7 @@ void xen_destroy_contiguous_region(unsigned long vstart, unsigned int order)
 	if (unlikely(order > MAX_CONTIG_ORDER))
 		return;
 
+	vstart = (unsigned long)phys_to_virt(pstart);
 	memset((void *) vstart, 0, PAGE_SIZE << order);
 
 	spin_lock_irqsave(&xen_reservation_lock, flags);
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index d8ef0bf577d2..189b8db5c983 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -43,6 +43,7 @@
 #include <xen/xen-ops.h>
 #include <xen/hvc-console.h>
 #include <asm/dma-mapping.h>
+#include <asm/xen/page-coherent.h>
 /*
  * Used to do a quick range check in swiotlb_tbl_unmap_single and
  * swiotlb_tbl_sync_single_*, to see if the memory was in fact allocated by this
@@ -142,6 +143,7 @@ xen_swiotlb_fixup(void *buf, size_t size, unsigned long nslabs)
 	int i, rc;
 	int dma_bits;
 	dma_addr_t dma_handle;
+	phys_addr_t p = virt_to_phys(buf);
 
 	dma_bits = get_order(IO_TLB_SEGSIZE << IO_TLB_SHIFT) + PAGE_SHIFT;
 
@@ -151,7 +153,7 @@ xen_swiotlb_fixup(void *buf, size_t size, unsigned long nslabs)
 
 		do {
 			rc = xen_create_contiguous_region(
-				(unsigned long)buf + (i << IO_TLB_SHIFT),
+				p + (i << IO_TLB_SHIFT),
 				get_order(slabs << IO_TLB_SHIFT),
 				dma_bits, &dma_handle);
 		} while (rc && dma_bits++ < max_dma_bits);
@@ -279,7 +281,6 @@ xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 	void *ret;
 	int order = get_order(size);
 	u64 dma_mask = DMA_BIT_MASK(32);
-	unsigned long vstart;
 	phys_addr_t phys;
 	dma_addr_t dev_addr;
 
@@ -294,8 +295,12 @@ xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 	if (dma_alloc_from_coherent(hwdev, size, dma_handle, &ret))
 		return ret;
 
-	vstart = __get_free_pages(flags, order);
-	ret = (void *)vstart;
+	/* On ARM this function returns an ioremap'ped virtual address for
+	 * which virt_to_phys doesn't return the corresponding physical
+	 * address. In fact on ARM virt_to_phys only works for kernel direct
+	 * mapped RAM memory. Also see comment below.
+	 */
+	ret = xen_alloc_coherent_pages(hwdev, size, dma_handle, flags, attrs);
 
 	if (!ret)
 		return ret;
@@ -303,15 +308,19 @@ xen_swiotlb_alloc_coherent(struct device *hwdev, size_t size,
 	if (hwdev && hwdev->coherent_dma_mask)
 		dma_mask = dma_alloc_coherent_mask(hwdev, flags);
 
-	phys = virt_to_phys(ret);
+	/* At this point dma_handle is the physical address, next we are
+	 * going to set it to the machine address.
+	 * Do not use virt_to_phys(ret) because on ARM it doesn't correspond
+	 * to *dma_handle. */
+	phys = *dma_handle;
 	dev_addr = xen_phys_to_bus(phys);
 	if (((dev_addr + size - 1 <= dma_mask)) &&
 	    !range_straddles_page_boundary(phys, size))
 		*dma_handle = dev_addr;
 	else {
-		if (xen_create_contiguous_region(vstart, order,
+		if (xen_create_contiguous_region(phys, order,
 						 fls64(dma_mask), dma_handle) != 0) {
-			free_pages(vstart, order);
+			xen_free_coherent_pages(hwdev, size, ret, (dma_addr_t)phys, attrs);
 			return NULL;
 		}
 	}
@@ -334,13 +343,15 @@ xen_swiotlb_free_coherent(struct device *hwdev, size_t size, void *vaddr,
 	if (hwdev && hwdev->coherent_dma_mask)
 		dma_mask = hwdev->coherent_dma_mask;
 
-	phys = virt_to_phys(vaddr);
+	/* do not use virt_to_phys because on ARM it doesn't return you the
+	 * physical address */
+	phys = xen_bus_to_phys(dev_addr);
 
 	if (((dev_addr + size - 1 > dma_mask)) ||
 	    range_straddles_page_boundary(phys, size))
-		xen_destroy_contiguous_region((unsigned long)vaddr, order);
+		xen_destroy_contiguous_region(phys, order);
 
-	free_pages((unsigned long)vaddr, order);
+	xen_free_coherent_pages(hwdev, size, vaddr, (dma_addr_t)phys, attrs);
 }
 EXPORT_SYMBOL_GPL(xen_swiotlb_free_coherent);
 
diff --git a/include/xen/xen-ops.h b/include/xen/xen-ops.h
index 9ef704d3a9dd..fb2ea8f26552 100644
--- a/include/xen/xen-ops.h
+++ b/include/xen/xen-ops.h
@@ -19,11 +19,11 @@ void xen_arch_resume(void);
 int xen_setup_shutdown_event(void);
 
 extern unsigned long *xen_contiguous_bitmap;
-int xen_create_contiguous_region(unsigned long vstart, unsigned int order,
+int xen_create_contiguous_region(phys_addr_t pstart, unsigned int order,
 				unsigned int address_bits,
 				dma_addr_t *dma_handle);
 
-void xen_destroy_contiguous_region(unsigned long vstart, unsigned int order);
+void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order);
 
 struct vm_area_struct;
 int xen_remap_domain_mfn_range(struct vm_area_struct *vma,
-- 
cgit 


From 7fc031e612238a7bbf6e989001abc5ce274bcba6 Mon Sep 17 00:00:00 2001
From: David Cohen <david.a.cohen@linux.intel.com>
Date: Fri, 4 Oct 2013 15:30:21 -0700
Subject: usb: g_ffs: fix compilation warning
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

If USB_FUNCTIONFS is selected without USB_FUNCTIONFS_ETH and
USB_FUNCTIONFS_RNIS, u_ether.h won't be included and then
USB_ETHERNET_MODULE_PARAMAETERS macro won't be available causing the
following warning compilation:

drivers/usb/gadget/g_ffs.c:81:1: warning: data definition has no type or
storage class [enabled by default]
drivers/usb/gadget/g_ffs.c:81:1: warning: type defaults to ‘int’ in
declaration of ‘USB_ETHERNET_MODULE_PARAMETERS’ [-Wimplicit-int]
drivers/usb/gadget/g_ffs.c:81:1: warning: function declaration isn’t a
prototype [-Wstrict-prototypes]

This patch fixes the warning by making USB_ETHERNET_MODULE_PARAMETERS to
be used iff u_ether.h is included, otherwise it is not needed.

Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/g_ffs.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/gadget/g_ffs.c b/drivers/usb/gadget/g_ffs.c
index 5327c82472ed..2344efe4f4ce 100644
--- a/drivers/usb/gadget/g_ffs.c
+++ b/drivers/usb/gadget/g_ffs.c
@@ -76,7 +76,9 @@ struct gfs_ffs_obj {
 
 USB_GADGET_COMPOSITE_OPTIONS();
 
+#if defined CONFIG_USB_FUNCTIONFS_ETH || defined CONFIG_USB_FUNCTIONFS_RNDIS
 USB_ETHERNET_MODULE_PARAMETERS();
+#endif
 
 static struct usb_device_descriptor gfs_dev_desc = {
 	.bLength		= sizeof gfs_dev_desc,
-- 
cgit 


From dc807576d239239433cbb95d891ea23a820528c1 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 6 Oct 2013 08:44:35 +0200
Subject: usb: gadget: mv_u3d_core: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/mv_u3d_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/mv_u3d_core.c b/drivers/usb/gadget/mv_u3d_core.c
index 4d31177d5d99..234711eabea1 100644
--- a/drivers/usb/gadget/mv_u3d_core.c
+++ b/drivers/usb/gadget/mv_u3d_core.c
@@ -1938,7 +1938,7 @@ static int mv_u3d_probe(struct platform_device *dev)
 	}
 	u3d->irq = r->start;
 	if (request_irq(u3d->irq, mv_u3d_irq,
-		IRQF_DISABLED | IRQF_SHARED, driver_name, u3d)) {
+		IRQF_SHARED, driver_name, u3d)) {
 		u3d->irq = 0;
 		dev_err(&dev->dev, "Request irq %d for u3d failed\n",
 			u3d->irq);
-- 
cgit 


From b26ec9b11b309acd9f6bb15fcc9bb396091384e8 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Tue, 8 Oct 2013 16:09:04 -0400
Subject: svcrpc: handle some gssproxy encoding errors

Reported-by: Andi Kleen <andi@firstfloor.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 net/sunrpc/auth_gss/gss_rpc_xdr.c | 29 ++++++++++++++---------------
 1 file changed, 14 insertions(+), 15 deletions(-)

diff --git a/net/sunrpc/auth_gss/gss_rpc_xdr.c b/net/sunrpc/auth_gss/gss_rpc_xdr.c
index f0f78c5f1c7d..1ec19f6f0c2b 100644
--- a/net/sunrpc/auth_gss/gss_rpc_xdr.c
+++ b/net/sunrpc/auth_gss/gss_rpc_xdr.c
@@ -559,6 +559,8 @@ static int gssx_enc_cred(struct xdr_stream *xdr,
 
 	/* cred->elements */
 	err = dummy_enc_credel_array(xdr, &cred->elements);
+	if (err)
+		return err;
 
 	/* cred->cred_handle_reference */
 	err = gssx_enc_buffer(xdr, &cred->cred_handle_reference);
@@ -740,22 +742,20 @@ void gssx_enc_accept_sec_context(struct rpc_rqst *req,
 		goto done;
 
 	/* arg->context_handle */
-	if (arg->context_handle) {
+	if (arg->context_handle)
 		err = gssx_enc_ctx(xdr, arg->context_handle);
-		if (err)
-			goto done;
-	} else {
+	else
 		err = gssx_enc_bool(xdr, 0);
-	}
+	if (err)
+		goto done;
 
 	/* arg->cred_handle */
-	if (arg->cred_handle) {
+	if (arg->cred_handle)
 		err = gssx_enc_cred(xdr, arg->cred_handle);
-		if (err)
-			goto done;
-	} else {
+	else
 		err = gssx_enc_bool(xdr, 0);
-	}
+	if (err)
+		goto done;
 
 	/* arg->input_token */
 	err = gssx_enc_in_token(xdr, &arg->input_token);
@@ -763,13 +763,12 @@ void gssx_enc_accept_sec_context(struct rpc_rqst *req,
 		goto done;
 
 	/* arg->input_cb */
-	if (arg->input_cb) {
+	if (arg->input_cb)
 		err = gssx_enc_cb(xdr, arg->input_cb);
-		if (err)
-			goto done;
-	} else {
+	else
 		err = gssx_enc_bool(xdr, 0);
-	}
+	if (err)
+		goto done;
 
 	err = gssx_enc_bool(xdr, arg->ret_deleg_cred);
 	if (err)
-- 
cgit 


From 5d6baef9ab52d0d02b3106d8ccd1b05ec628e027 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Wed, 9 Oct 2013 15:59:29 -0400
Subject: gss_krb5: document that we ignore sequence number

A couple times recently somebody has noticed that we're ignoring a
sequence number here and wondered whether there's a bug.

In fact, there's not.  Thanks to Andy Adamson for pointing out a useful
explanation in rfc 2203.  Add comments citing that rfc, and remove
"seqnum" to prevent static checkers complaining about unused variables.

Reported-by: Andi Kleen <andi@firstfloor.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 net/sunrpc/auth_gss/gss_krb5_unseal.c | 8 ++++----
 net/sunrpc/auth_gss/gss_krb5_wrap.c   | 6 ++++--
 2 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/net/sunrpc/auth_gss/gss_krb5_unseal.c b/net/sunrpc/auth_gss/gss_krb5_unseal.c
index 6cd930f3678f..6c981ddc19f8 100644
--- a/net/sunrpc/auth_gss/gss_krb5_unseal.c
+++ b/net/sunrpc/auth_gss/gss_krb5_unseal.c
@@ -150,7 +150,6 @@ gss_verify_mic_v2(struct krb5_ctx *ctx,
 	struct xdr_netobj cksumobj = {.len = sizeof(cksumdata),
 				      .data = cksumdata};
 	s32 now;
-	u64 seqnum;
 	u8 *ptr = read_token->data;
 	u8 *cksumkey;
 	u8 flags;
@@ -197,9 +196,10 @@ gss_verify_mic_v2(struct krb5_ctx *ctx,
 	if (now > ctx->endtime)
 		return GSS_S_CONTEXT_EXPIRED;
 
-	/* do sequencing checks */
-
-	seqnum = be64_to_cpup((__be64 *)ptr + 8);
+	/*
+	 * NOTE: the sequence number at ptr + 8 is skipped, rpcsec_gss
+	 * doesn't want it checked; see page 6 of rfc 2203.
+	 */
 
 	return GSS_S_COMPLETE;
 }
diff --git a/net/sunrpc/auth_gss/gss_krb5_wrap.c b/net/sunrpc/auth_gss/gss_krb5_wrap.c
index 1da52d1406fc..5040a460f1d9 100644
--- a/net/sunrpc/auth_gss/gss_krb5_wrap.c
+++ b/net/sunrpc/auth_gss/gss_krb5_wrap.c
@@ -489,7 +489,6 @@ static u32
 gss_unwrap_kerberos_v2(struct krb5_ctx *kctx, int offset, struct xdr_buf *buf)
 {
 	s32		now;
-	u64		seqnum;
 	u8		*ptr;
 	u8		flags = 0x00;
 	u16		ec, rrc;
@@ -525,7 +524,10 @@ gss_unwrap_kerberos_v2(struct krb5_ctx *kctx, int offset, struct xdr_buf *buf)
 	ec = be16_to_cpup((__be16 *)(ptr + 4));
 	rrc = be16_to_cpup((__be16 *)(ptr + 6));
 
-	seqnum = be64_to_cpup((__be64 *)(ptr + 8));
+	/*
+	 * NOTE: the sequence number at ptr + 8 is skipped, rpcsec_gss
+	 * doesn't want it checked; see page 6 of rfc 2203.
+	 */
 
 	if (rrc != 0)
 		rotate_left(offset + 16, buf, rrc);
-- 
cgit 


From e9edd199d69034fa163c97ef310ca72dca9cf030 Mon Sep 17 00:00:00 2001
From: Robert Baldyga <r.baldyga@samsung.com>
Date: Wed, 9 Oct 2013 08:20:02 +0200
Subject: usb: gadget: s3c-hsotg: fix set_ep_maxpacket function

This patch fixes max packet size check in s3c_hsotg_set_ep_maxpacket()
function. According USB specification, bits 10..0 of mps specifies maximum
packet size, so there is bitwise AND between mps and 0x7ff value. Also added
check if maxpacket isn't grater than 1024 which is maximum size od single USB
transaction.

In s3c_hsotg_ep_enable() function added s3c_hsotg_set_ep_maxpacket() call
instead of setting ep.maxpacket value directly.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/s3c-hsotg.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 4691df732c42..424b2ad00ec7 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -1705,15 +1705,14 @@ static void s3c_hsotg_set_ep_maxpacket(struct s3c_hsotg *hsotg,
 		mpsval = s3c_hsotg_ep0_mps(mps);
 		if (mpsval > 3)
 			goto bad_mps;
+		hs_ep->ep.maxpacket = mps;
 	} else {
-		if (mps >= DxEPCTL_MPS_LIMIT+1)
+		mpsval = mps & DxEPCTL_MPS_MASK;
+		if (mpsval > 1024)
 			goto bad_mps;
-
-		mpsval = mps;
+		hs_ep->ep.maxpacket = mpsval;
 	}
 
-	hs_ep->ep.maxpacket = mps;
-
 	/*
 	 * update both the in and out endpoint controldir_ registers, even
 	 * if one of the directions may not be in use.
@@ -2579,7 +2578,7 @@ static int s3c_hsotg_ep_enable(struct usb_ep *ep,
 	epctrl |= DxEPCTL_SNAK;
 
 	/* update the endpoint state */
-	hs_ep->ep.maxpacket = mps;
+	s3c_hsotg_set_ep_maxpacket(hsotg, hs_ep->index, mps);
 
 	/* default, set to non-periodic */
 	hs_ep->periodic = 0;
-- 
cgit 


From 8502d66d33704d66d29c715ba5e91192b554cef0 Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 9 Oct 2013 10:05:52 +0200
Subject: usb: gadget: f_mass_storage: create _fsg_common_free_buffers

When configfs is in place, gadgets will have to be able to free
fsg buffers. Add a helper function.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/f_mass_storage.c | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 32e5ab73f746..59a12c168cc5 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -2642,6 +2642,18 @@ static inline int fsg_num_buffers_validate(unsigned int fsg_num_buffers)
 	return -EINVAL;
 }
 
+static void _fsg_common_free_buffers(struct fsg_buffhd *buffhds, unsigned n)
+{
+	if (buffhds) {
+		struct fsg_buffhd *bh = buffhds;
+		while (n--) {
+			kfree(bh->buf);
+			++bh;
+		}
+		kfree(buffhds);
+	}
+}
+
 struct fsg_common *fsg_common_init(struct fsg_common *common,
 				   struct usb_composite_dev *cdev,
 				   struct fsg_config *cfg)
@@ -2897,15 +2909,7 @@ static void fsg_common_release(struct kref *ref)
 		kfree(common->luns);
 	}
 
-	{
-		struct fsg_buffhd *bh = common->buffhds;
-		unsigned i = common->fsg_num_buffers;
-		do {
-			kfree(bh->buf);
-		} while (++bh, --i);
-	}
-
-	kfree(common->buffhds);
+	_fsg_common_free_buffers(common->buffhds, common->fsg_num_buffers);
 	if (common->free_storage_on_release)
 		kfree(common);
 }
-- 
cgit 


From bd528d4e699b212a763eecda9cacffb4b85a5fe6 Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 9 Oct 2013 10:05:53 +0200
Subject: usb: gadget: f_mass_storage: make sysfs interface optional

When configfs is in place, the luns will not be represented in sysfs,
so there will be no struct device associated with a lun.
In order to maintain compatibility and allow configfs adoption
sysfs is made optional in this patch.

As a consequence some debug macros need to be adjusted. Two new
fields are added to struct fsg_lun: name and name_pfx.
The "name" is for storing a string which is presented to the user
instead of the dev_name. The "name_pfx", if non-NULL, is prepended
to the "name" at printing time.

The name_pfx is for a future lun.0, which will be a default group in
mass_storage.<name>. By design at USB function configfs group's creation
time its name is not known (but instead set a bit later in
drivers/usb/gadget/configfs.c:function_make) and it is this name that
serves the purpose of the said name prefix. So instead of copying
a yet-unknown string a pointer to it is stored in struct fsg_lun.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/f_mass_storage.c | 51 +++++++++++++++++++++++++++++--------
 drivers/usb/gadget/f_mass_storage.h |  2 ++
 drivers/usb/gadget/storage_common.h | 20 ++++++++++++---
 3 files changed, 59 insertions(+), 14 deletions(-)

diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 59a12c168cc5..7034d9c8363f 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -299,6 +299,7 @@ struct fsg_common {
 	unsigned int		short_packet_received:1;
 	unsigned int		bad_lun_okay:1;
 	unsigned int		running:1;
+	unsigned int		sysfs:1;
 
 	int			thread_wakeup_needed;
 	struct completion	thread_notifier;
@@ -2642,6 +2643,11 @@ static inline int fsg_num_buffers_validate(unsigned int fsg_num_buffers)
 	return -EINVAL;
 }
 
+void fsg_common_set_sysfs(struct fsg_common *common, bool sysfs)
+{
+	common->sysfs = sysfs;
+}
+
 static void _fsg_common_free_buffers(struct fsg_buffhd *buffhds, unsigned n)
 {
 	if (buffhds) {
@@ -2654,6 +2660,34 @@ static void _fsg_common_free_buffers(struct fsg_buffhd *buffhds, unsigned n)
 	}
 }
 
+static inline void fsg_common_remove_sysfs(struct fsg_lun *lun)
+{
+	device_remove_file(&lun->dev, &dev_attr_nofua);
+	/*
+	 * device_remove_file() =>
+	 *
+	 * here the attr (e.g. dev_attr_ro) is only used to be passed to:
+	 *
+	 *	sysfs_remove_file() =>
+	 *
+	 *	here e.g. both dev_attr_ro_cdrom and dev_attr_ro are in
+	 *	the same namespace and
+	 *	from here only attr->name is passed to:
+	 *
+	 *		sysfs_hash_and_remove()
+	 *
+	 *		attr->name is the same for dev_attr_ro_cdrom and
+	 *		dev_attr_ro
+	 *		attr->name is the same for dev_attr_file and
+	 *		dev_attr_file_nonremovable
+	 *
+	 * so we don't differentiate between removing e.g. dev_attr_ro_cdrom
+	 * and dev_attr_ro
+	 */
+	device_remove_file(&lun->dev, &dev_attr_ro);
+	device_remove_file(&lun->dev, &dev_attr_file);
+}
+
 struct fsg_common *fsg_common_init(struct fsg_common *common,
 				   struct usb_composite_dev *cdev,
 				   struct fsg_config *cfg)
@@ -2687,6 +2721,8 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 		memset(common, 0, sizeof *common);
 		common->free_storage_on_release = 0;
 	}
+	fsg_common_set_sysfs(common, true);
+	common->state = FSG_STATE_IDLE;
 
 	common->fsg_num_buffers = cfg->fsg_num_buffers;
 	common->buffhds = kcalloc(common->fsg_num_buffers,
@@ -2746,6 +2782,7 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 		/* curlun->dev.driver = &fsg_driver.driver; XXX */
 		dev_set_drvdata(&curlun->dev, &common->filesem);
 		dev_set_name(&curlun->dev, "lun%d", i);
+		curlun->name = dev_name(&curlun->dev);
 
 		rc = device_register(&curlun->dev);
 		if (rc) {
@@ -2892,17 +2929,11 @@ static void fsg_common_release(struct kref *ref)
 			struct fsg_lun *lun = *lun_it;
 			if (!lun)
 				continue;
-			device_remove_file(&lun->dev, &dev_attr_nofua);
-			device_remove_file(&lun->dev,
-					   lun->cdrom
-					 ? &dev_attr_ro_cdrom
-					 : &dev_attr_ro);
-			device_remove_file(&lun->dev,
-					   lun->removable
-					 ? &dev_attr_file
-					 : &dev_attr_file_nonremovable);
+			if (common->sysfs)
+				fsg_common_remove_sysfs(lun);
 			fsg_lun_close(lun);
-			device_unregister(&lun->dev);
+			if (common->sysfs)
+				device_unregister(&lun->dev);
 			kfree(lun);
 		}
 
diff --git a/drivers/usb/gadget/f_mass_storage.h b/drivers/usb/gadget/f_mass_storage.h
index b64761d836f6..1b88eae75283 100644
--- a/drivers/usb/gadget/f_mass_storage.h
+++ b/drivers/usb/gadget/f_mass_storage.h
@@ -102,6 +102,8 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 				   struct usb_composite_dev *cdev,
 				   struct fsg_config *cfg);
 
+void fsg_common_set_sysfs(struct fsg_common *common, bool sysfs);
+
 void fsg_config_from_params(struct fsg_config *cfg,
 			    const struct fsg_module_parameters *params,
 			    unsigned int fsg_num_buffers);
diff --git a/drivers/usb/gadget/storage_common.h b/drivers/usb/gadget/storage_common.h
index 1fcda2bfef6c..d8cc090aca35 100644
--- a/drivers/usb/gadget/storage_common.h
+++ b/drivers/usb/gadget/storage_common.h
@@ -17,10 +17,20 @@
 #define VLDBG(lun, fmt, args...) do { } while (0)
 #endif /* VERBOSE_DEBUG */
 
-#define LDBG(lun, fmt, args...)   dev_dbg(&(lun)->dev, fmt, ## args)
-#define LERROR(lun, fmt, args...) dev_err(&(lun)->dev, fmt, ## args)
-#define LWARN(lun, fmt, args...)  dev_warn(&(lun)->dev, fmt, ## args)
-#define LINFO(lun, fmt, args...)  dev_info(&(lun)->dev, fmt, ## args)
+#define _LMSG(func, lun, fmt, args...)					\
+	do {								\
+		if ((lun)->name_pfx && *(lun)->name_pfx)		\
+			func("%s/%s: " fmt, *(lun)->name_pfx,		\
+				 (lun)->name, ## args);			\
+		else							\
+			func("%s: " fmt, (lun)->name, ## args);		\
+	} while (0)
+
+#define LDBG(lun, fmt, args...)		_LMSG(pr_debug, lun, fmt, ## args)
+#define LERROR(lun, fmt, args...)	_LMSG(pr_err, lun, fmt, ## args)
+#define LWARN(lun, fmt, args...)	_LMSG(pr_warn, lun, fmt, ## args)
+#define LINFO(lun, fmt, args...)	_LMSG(pr_info, lun, fmt, ## args)
+
 
 #ifdef DUMP_MSGS
 
@@ -100,6 +110,8 @@ struct fsg_lun {
 						       of bound block device */
 	unsigned int	blksize; /* logical block size of bound block device */
 	struct device	dev;
+	const char	*name;		/* "lun.name" */
+	const char	**name_pfx;	/* "function.name" */
 };
 
 static inline bool fsg_lun_is_open(struct fsg_lun *curlun)
-- 
cgit 


From b24650df9521f1845571568684621cefb0ba4e3b Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 9 Oct 2013 10:05:54 +0200
Subject: usb: gadget: f_mass_storage: create fsg_common_setup for use in
 fsg_common_init

fsg_common_init is a lengthy function. Factor a portion of it out.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/f_mass_storage.c | 40 ++++++++++++++++++++++---------------
 1 file changed, 24 insertions(+), 16 deletions(-)

diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 7034d9c8363f..da87ffe34514 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -2643,6 +2643,27 @@ static inline int fsg_num_buffers_validate(unsigned int fsg_num_buffers)
 	return -EINVAL;
 }
 
+static struct fsg_common *fsg_common_setup(struct fsg_common *common)
+{
+	if (!common) {
+		common = kzalloc(sizeof(*common), GFP_KERNEL);
+		if (!common)
+			return ERR_PTR(-ENOMEM);
+		common->free_storage_on_release = 1;
+	} else {
+		memset(common, 0, sizeof(*common));
+		common->free_storage_on_release = 0;
+	}
+	init_rwsem(&common->filesem);
+	spin_lock_init(&common->lock);
+	kref_init(&common->ref);
+	init_completion(&common->thread_notifier);
+	init_waitqueue_head(&common->fsg_wait);
+	common->state = FSG_STATE_TERMINATED;
+
+	return common;
+}
+
 void fsg_common_set_sysfs(struct fsg_common *common, bool sysfs)
 {
 	common->sysfs = sysfs;
@@ -2711,16 +2732,9 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 		return ERR_PTR(-EINVAL);
 	}
 
-	/* Allocate? */
-	if (!common) {
-		common = kzalloc(sizeof *common, GFP_KERNEL);
-		if (!common)
-			return ERR_PTR(-ENOMEM);
-		common->free_storage_on_release = 1;
-	} else {
-		memset(common, 0, sizeof *common);
-		common->free_storage_on_release = 0;
-	}
+	common = fsg_common_setup(common);
+	if (IS_ERR(common))
+		return common;
 	fsg_common_set_sysfs(common, true);
 	common->state = FSG_STATE_IDLE;
 
@@ -2760,8 +2774,6 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 	}
 	common->luns = curlun_it;
 
-	init_rwsem(&common->filesem);
-
 	for (i = 0, lcfg = cfg->luns; i < nluns; ++i, ++curlun_it, ++lcfg) {
 		struct fsg_lun *curlun;
 
@@ -2855,8 +2867,6 @@ buffhds_first_it:
 	common->can_stall = cfg->can_stall &&
 		!(gadget_is_at91(common->gadget));
 
-	spin_lock_init(&common->lock);
-	kref_init(&common->ref);
 
 	/* Tell the thread to start working */
 	common->thread_task =
@@ -2865,8 +2875,6 @@ buffhds_first_it:
 		rc = PTR_ERR(common->thread_task);
 		goto error_release;
 	}
-	init_completion(&common->thread_notifier);
-	init_waitqueue_head(&common->fsg_wait);
 
 	/* Information */
 	INFO(common, FSG_DRIVER_DESC ", version: " FSG_DRIVER_VERSION "\n");
-- 
cgit 


From 6313caace5f5b4fd2c23b9bc40ea26f252a28bf9 Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 9 Oct 2013 10:05:55 +0200
Subject: usb: gadget: f_mass_storage: create fsg_common_set_num_buffers for
 use in fsg_common_init

fsg_common_init is a lengthy function. Factor a portion of it out.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/f_mass_storage.c | 72 +++++++++++++++++++++++--------------
 drivers/usb/gadget/f_mass_storage.h |  2 ++
 2 files changed, 48 insertions(+), 26 deletions(-)

diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index da87ffe34514..79d989979360 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -2681,6 +2681,49 @@ static void _fsg_common_free_buffers(struct fsg_buffhd *buffhds, unsigned n)
 	}
 }
 
+int fsg_common_set_num_buffers(struct fsg_common *common, unsigned int n)
+{
+	struct fsg_buffhd *bh, *buffhds;
+	int i, rc;
+
+	rc = fsg_num_buffers_validate(n);
+	if (rc != 0)
+		return rc;
+
+	buffhds = kcalloc(n, sizeof(*buffhds), GFP_KERNEL);
+	if (!buffhds)
+		return -ENOMEM;
+
+	/* Data buffers cyclic list */
+	bh = buffhds;
+	i = n;
+	goto buffhds_first_it;
+	do {
+		bh->next = bh + 1;
+		++bh;
+buffhds_first_it:
+		bh->buf = kmalloc(FSG_BUFLEN, GFP_KERNEL);
+		if (unlikely(!bh->buf))
+			goto error_release;
+	} while (--i);
+	bh->next = buffhds;
+
+	_fsg_common_free_buffers(common->buffhds, common->fsg_num_buffers);
+	common->fsg_num_buffers = n;
+	common->buffhds = buffhds;
+
+	return 0;
+
+error_release:
+	/*
+	 * "buf"s pointed to by heads after n - i are NULL
+	 * so releasing them won't hurt
+	 */
+	_fsg_common_free_buffers(buffhds, n);
+
+	return -ENOMEM;
+}
+
 static inline void fsg_common_remove_sysfs(struct fsg_lun *lun)
 {
 	device_remove_file(&lun->dev, &dev_attr_nofua);
@@ -2714,17 +2757,12 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 				   struct fsg_config *cfg)
 {
 	struct usb_gadget *gadget = cdev->gadget;
-	struct fsg_buffhd *bh;
 	struct fsg_lun **curlun_it;
 	struct fsg_lun_config *lcfg;
 	struct usb_string *us;
 	int nluns, i, rc;
 	char *pathbuf;
 
-	rc = fsg_num_buffers_validate(cfg->fsg_num_buffers);
-	if (rc != 0)
-		return ERR_PTR(rc);
-
 	/* Find out how many LUNs there should be */
 	nluns = cfg->nluns;
 	if (nluns < 1 || nluns > FSG_MAX_LUNS) {
@@ -2738,15 +2776,12 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 	fsg_common_set_sysfs(common, true);
 	common->state = FSG_STATE_IDLE;
 
-	common->fsg_num_buffers = cfg->fsg_num_buffers;
-	common->buffhds = kcalloc(common->fsg_num_buffers,
-				  sizeof *(common->buffhds), GFP_KERNEL);
-	if (!common->buffhds) {
+	rc = fsg_common_set_num_buffers(common, cfg->fsg_num_buffers);
+	if (rc) {
 		if (common->free_storage_on_release)
 			kfree(common);
-		return ERR_PTR(-ENOMEM);
+		return ERR_PTR(rc);
 	}
-
 	common->ops = cfg->ops;
 	common->private_data = cfg->private_data;
 
@@ -2833,21 +2868,6 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 	}
 	common->nluns = nluns;
 
-	/* Data buffers cyclic list */
-	bh = common->buffhds;
-	i = common->fsg_num_buffers;
-	goto buffhds_first_it;
-	do {
-		bh->next = bh + 1;
-		++bh;
-buffhds_first_it:
-		bh->buf = kmalloc(FSG_BUFLEN, GFP_KERNEL);
-		if (unlikely(!bh->buf)) {
-			rc = -ENOMEM;
-			goto error_release;
-		}
-	} while (--i);
-	bh->next = common->buffhds;
 
 	/* Prepare inquiryString */
 	i = get_default_bcdDevice();
diff --git a/drivers/usb/gadget/f_mass_storage.h b/drivers/usb/gadget/f_mass_storage.h
index 1b88eae75283..a00f51a1d94b 100644
--- a/drivers/usb/gadget/f_mass_storage.h
+++ b/drivers/usb/gadget/f_mass_storage.h
@@ -104,6 +104,8 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 
 void fsg_common_set_sysfs(struct fsg_common *common, bool sysfs);
 
+int fsg_common_set_num_buffers(struct fsg_common *common, unsigned int n);
+
 void fsg_config_from_params(struct fsg_config *cfg,
 			    const struct fsg_module_parameters *params,
 			    unsigned int fsg_num_buffers);
-- 
cgit 


From 70634170999a15e338b4091e06bd36ffdd283899 Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 9 Oct 2013 10:05:56 +0200
Subject: usb: gadget: f_mass_storage: create lun handling helpers for use in
 fsg_common_init

fsg_common_init is a lengthy function. Factor portions of it out.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/f_mass_storage.c | 80 +++++++++++++++++++++++++++++--------
 drivers/usb/gadget/f_mass_storage.h |  8 ++++
 2 files changed, 71 insertions(+), 17 deletions(-)

diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 79d989979360..cb789fa885fd 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -2752,6 +2752,64 @@ static inline void fsg_common_remove_sysfs(struct fsg_lun *lun)
 	device_remove_file(&lun->dev, &dev_attr_file);
 }
 
+void fsg_common_remove_lun(struct fsg_lun *lun, bool sysfs)
+{
+	if (sysfs) {
+		fsg_common_remove_sysfs(lun);
+		device_unregister(&lun->dev);
+	}
+	fsg_lun_close(lun);
+	kfree(lun);
+}
+
+static void _fsg_common_remove_luns(struct fsg_common *common, int n)
+{
+	int i;
+
+	for (i = 0; i < n; ++i)
+		if (common->luns[i]) {
+			fsg_common_remove_lun(common->luns[i], common->sysfs);
+			common->luns[i] = NULL;
+		}
+}
+
+void fsg_common_remove_luns(struct fsg_common *common)
+{
+	_fsg_common_remove_luns(common, common->nluns);
+}
+
+void fsg_common_free_luns(struct fsg_common *common)
+{
+	fsg_common_remove_luns(common);
+	kfree(common->luns);
+	common->luns = NULL;
+}
+
+int fsg_common_set_nluns(struct fsg_common *common, int nluns)
+{
+	struct fsg_lun **curlun;
+
+	/* Find out how many LUNs there should be */
+	if (nluns < 1 || nluns > FSG_MAX_LUNS) {
+		pr_err("invalid number of LUNs: %u\n", nluns);
+		return -EINVAL;
+	}
+
+	curlun = kcalloc(nluns, sizeof(*curlun), GFP_KERNEL);
+	if (unlikely(!curlun))
+		return -ENOMEM;
+
+	if (common->luns)
+		fsg_common_free_luns(common);
+
+	common->luns = curlun;
+	common->nluns = nluns;
+
+	pr_info("Number of LUNs=%d\n", common->nluns);
+
+	return 0;
+}
+
 struct fsg_common *fsg_common_init(struct fsg_common *common,
 				   struct usb_composite_dev *cdev,
 				   struct fsg_config *cfg)
@@ -2763,12 +2821,6 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 	int nluns, i, rc;
 	char *pathbuf;
 
-	/* Find out how many LUNs there should be */
-	nluns = cfg->nluns;
-	if (nluns < 1 || nluns > FSG_MAX_LUNS) {
-		dev_err(&gadget->dev, "invalid number of LUNs: %u\n", nluns);
-		return ERR_PTR(-EINVAL);
-	}
 
 	common = fsg_common_setup(common);
 	if (IS_ERR(common))
@@ -2798,17 +2850,12 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 	}
 	fsg_intf_desc.iInterface = us[FSG_STRING_INTERFACE].id;
 
-	/*
-	 * Create the LUNs, open their backing files, and register the
-	 * LUN devices in sysfs.
-	 */
-	curlun_it = kcalloc(nluns, sizeof(*curlun_it), GFP_KERNEL);
-	if (unlikely(!curlun_it)) {
-		rc = -ENOMEM;
-		goto error_release;
-	}
-	common->luns = curlun_it;
 
+	rc = fsg_common_set_nluns(common, cfg->nluns);
+	if (rc)
+		goto error_release;
+	curlun_it = common->luns;
+	nluns = cfg->nluns;
 	for (i = 0, lcfg = cfg->luns; i < nluns; ++i, ++curlun_it, ++lcfg) {
 		struct fsg_lun *curlun;
 
@@ -2866,7 +2913,6 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 			goto error_luns;
 		}
 	}
-	common->nluns = nluns;
 
 
 	/* Prepare inquiryString */
diff --git a/drivers/usb/gadget/f_mass_storage.h b/drivers/usb/gadget/f_mass_storage.h
index a00f51a1d94b..f98c792f36b0 100644
--- a/drivers/usb/gadget/f_mass_storage.h
+++ b/drivers/usb/gadget/f_mass_storage.h
@@ -106,6 +106,14 @@ void fsg_common_set_sysfs(struct fsg_common *common, bool sysfs);
 
 int fsg_common_set_num_buffers(struct fsg_common *common, unsigned int n);
 
+void fsg_common_remove_lun(struct fsg_lun *lun, bool sysfs);
+
+void fsg_common_remove_luns(struct fsg_common *common);
+
+void fsg_common_free_luns(struct fsg_common *common);
+
+int fsg_common_set_nluns(struct fsg_common *common, int nluns);
+
 void fsg_config_from_params(struct fsg_config *cfg,
 			    const struct fsg_module_parameters *params,
 			    unsigned int fsg_num_buffers);
-- 
cgit 


From a891d7a32f47118ce2ccfc8cac994aded8393fcd Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 9 Oct 2013 10:05:57 +0200
Subject: usb: gadget: f_mass_storage: create fsg_common_set_cdev for use in
 fsg_common_init

fsg_common_init is a lengthy function. Factor a portion of it out.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/f_mass_storage.c | 50 +++++++++++++++++++++----------------
 drivers/usb/gadget/f_mass_storage.h |  3 +++
 2 files changed, 32 insertions(+), 21 deletions(-)

diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index cb789fa885fd..e61c0667b53a 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -2810,6 +2810,33 @@ int fsg_common_set_nluns(struct fsg_common *common, int nluns)
 	return 0;
 }
 
+int fsg_common_set_cdev(struct fsg_common *common,
+			 struct usb_composite_dev *cdev, bool can_stall)
+{
+	struct usb_string *us;
+
+	common->gadget = cdev->gadget;
+	common->ep0 = cdev->gadget->ep0;
+	common->ep0req = cdev->req;
+	common->cdev = cdev;
+
+	us = usb_gstrings_attach(cdev, fsg_strings_array,
+				 ARRAY_SIZE(fsg_strings));
+	if (IS_ERR(us))
+		return PTR_ERR(us);
+
+	fsg_intf_desc.iInterface = us[FSG_STRING_INTERFACE].id;
+
+	/*
+	 * Some peripheral controllers are known not to be able to
+	 * halt bulk endpoints correctly.  If one of them is present,
+	 * disable stalls.
+	 */
+	common->can_stall = can_stall && !(gadget_is_at91(common->gadget));
+
+	return 0;
+}
+
 struct fsg_common *fsg_common_init(struct fsg_common *common,
 				   struct usb_composite_dev *cdev,
 				   struct fsg_config *cfg)
@@ -2817,7 +2844,6 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 	struct usb_gadget *gadget = cdev->gadget;
 	struct fsg_lun **curlun_it;
 	struct fsg_lun_config *lcfg;
-	struct usb_string *us;
 	int nluns, i, rc;
 	char *pathbuf;
 
@@ -2837,19 +2863,9 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 	common->ops = cfg->ops;
 	common->private_data = cfg->private_data;
 
-	common->gadget = gadget;
-	common->ep0 = gadget->ep0;
-	common->ep0req = cdev->req;
-	common->cdev = cdev;
-
-	us = usb_gstrings_attach(cdev, fsg_strings_array,
-				 ARRAY_SIZE(fsg_strings));
-	if (IS_ERR(us)) {
-		rc = PTR_ERR(us);
+	rc = fsg_common_set_cdev(common, cdev, cfg->can_stall);
+	if (rc)
 		goto error_release;
-	}
-	fsg_intf_desc.iInterface = us[FSG_STRING_INTERFACE].id;
-
 
 	rc = fsg_common_set_nluns(common, cfg->nluns);
 	if (rc)
@@ -2925,14 +2941,6 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 				     : "File-Stor Gadget"),
 		 i);
 
-	/*
-	 * Some peripheral controllers are known not to be able to
-	 * halt bulk endpoints correctly.  If one of them is present,
-	 * disable stalls.
-	 */
-	common->can_stall = cfg->can_stall &&
-		!(gadget_is_at91(common->gadget));
-
 
 	/* Tell the thread to start working */
 	common->thread_task =
diff --git a/drivers/usb/gadget/f_mass_storage.h b/drivers/usb/gadget/f_mass_storage.h
index f98c792f36b0..de7aa32565b4 100644
--- a/drivers/usb/gadget/f_mass_storage.h
+++ b/drivers/usb/gadget/f_mass_storage.h
@@ -106,6 +106,9 @@ void fsg_common_set_sysfs(struct fsg_common *common, bool sysfs);
 
 int fsg_common_set_num_buffers(struct fsg_common *common, unsigned int n);
 
+int fsg_common_set_cdev(struct fsg_common *common,
+			struct usb_composite_dev *cdev, bool can_stall);
+
 void fsg_common_remove_lun(struct fsg_lun *lun, bool sysfs);
 
 void fsg_common_remove_luns(struct fsg_common *common);
-- 
cgit 


From b27c08c953e994f792a03d9b7cbc5cf3f9844135 Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 9 Oct 2013 10:05:58 +0200
Subject: usb: gadget: f_mass_storage: create lun creation helpers for use in
 fsg_common_init

fsg_common_init is a lengthy function. Factor portions of it out.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/f_mass_storage.c | 238 ++++++++++++++++++++++--------------
 drivers/usb/gadget/f_mass_storage.h |   6 +
 2 files changed, 153 insertions(+), 91 deletions(-)

diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index e61c0667b53a..6a67e2ed75d9 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -2837,16 +2837,154 @@ int fsg_common_set_cdev(struct fsg_common *common,
 	return 0;
 }
 
+static inline int fsg_common_add_sysfs(struct fsg_common *common,
+				       struct fsg_lun *lun)
+{
+	int rc;
+
+	rc = device_register(&lun->dev);
+	if (rc) {
+		put_device(&lun->dev);
+		return rc;
+	}
+
+	rc = device_create_file(&lun->dev,
+				lun->cdrom
+			      ? &dev_attr_ro_cdrom
+			      : &dev_attr_ro);
+	if (rc)
+		goto error;
+	rc = device_create_file(&lun->dev,
+				lun->removable
+			      ? &dev_attr_file
+			      : &dev_attr_file_nonremovable);
+	if (rc)
+		goto error;
+	rc = device_create_file(&lun->dev, &dev_attr_nofua);
+	if (rc)
+		goto error;
+
+	return 0;
+
+error:
+	/* removing nonexistent files is a no-op */
+	fsg_common_remove_sysfs(lun);
+	device_unregister(&lun->dev);
+	return rc;
+}
+
+int fsg_common_create_lun(struct fsg_common *common, struct fsg_lun_config *cfg,
+			  unsigned int id, const char *name,
+			  const char **name_pfx)
+{
+	struct fsg_lun *lun;
+	char *pathbuf, *p;
+	int rc = -ENOMEM;
+
+	if (!common->nluns || !common->luns)
+		return -ENODEV;
+
+	if (common->luns[id])
+		return -EBUSY;
+
+	if (!cfg->filename && !cfg->removable) {
+		pr_err("no file given for LUN%d\n", id);
+		return -EINVAL;
+	}
+
+	lun = kzalloc(sizeof(*lun), GFP_KERNEL);
+	if (!lun)
+		return -ENOMEM;
+
+	lun->name_pfx = name_pfx;
+
+	lun->cdrom = !!cfg->cdrom;
+	lun->ro = cfg->cdrom || cfg->ro;
+	lun->initially_ro = lun->ro;
+	lun->removable = !!cfg->removable;
+
+	if (!common->sysfs) {
+		/* we DON'T own the name!*/
+		lun->name = name;
+	} else {
+		lun->dev.release = fsg_lun_release;
+		lun->dev.parent = &common->gadget->dev;
+		dev_set_drvdata(&lun->dev, &common->filesem);
+		dev_set_name(&lun->dev, name);
+		lun->name = dev_name(&lun->dev);
+
+		rc = fsg_common_add_sysfs(common, lun);
+		if (rc) {
+			pr_info("failed to register LUN%d: %d\n", id, rc);
+			goto error_sysfs;
+		}
+	}
+
+	common->luns[id] = lun;
+
+	if (cfg->filename) {
+		rc = fsg_lun_open(lun, cfg->filename);
+		if (rc)
+			goto error_lun;
+	}
+
+	pathbuf = kmalloc(PATH_MAX, GFP_KERNEL);
+	p = "(no medium)";
+	if (fsg_lun_is_open(lun)) {
+		p = "(error)";
+		if (pathbuf) {
+			p = d_path(&lun->filp->f_path, pathbuf, PATH_MAX);
+			if (IS_ERR(p))
+				p = "(error)";
+		}
+	}
+	pr_info("LUN: %s%s%sfile: %s\n",
+	      lun->removable ? "removable " : "",
+	      lun->ro ? "read only " : "",
+	      lun->cdrom ? "CD-ROM " : "",
+	      p);
+	kfree(pathbuf);
+
+	return 0;
+
+error_lun:
+	if (common->sysfs) {
+		fsg_common_remove_sysfs(lun);
+		device_unregister(&lun->dev);
+	}
+	fsg_lun_close(lun);
+	common->luns[id] = NULL;
+error_sysfs:
+	kfree(lun);
+	return rc;
+}
+
+int fsg_common_create_luns(struct fsg_common *common, struct fsg_config *cfg)
+{
+	char buf[8]; /* enough for 100000000 different numbers, decimal */
+	int i, rc;
+
+	for (i = 0; i < common->nluns; ++i) {
+		snprintf(buf, sizeof(buf), "lun%d", i);
+		rc = fsg_common_create_lun(common, &cfg->luns[i], i, buf, NULL);
+		if (rc)
+			goto fail;
+	}
+
+	pr_info("Number of LUNs=%d\n", common->nluns);
+
+	return 0;
+
+fail:
+	_fsg_common_remove_luns(common, i);
+	return rc;
+}
+
 struct fsg_common *fsg_common_init(struct fsg_common *common,
 				   struct usb_composite_dev *cdev,
 				   struct fsg_config *cfg)
 {
-	struct usb_gadget *gadget = cdev->gadget;
-	struct fsg_lun **curlun_it;
-	struct fsg_lun_config *lcfg;
-	int nluns, i, rc;
-	char *pathbuf;
-
+	int i, rc;
 
 	common = fsg_common_setup(common);
 	if (IS_ERR(common))
@@ -2870,66 +3008,10 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 	rc = fsg_common_set_nluns(common, cfg->nluns);
 	if (rc)
 		goto error_release;
-	curlun_it = common->luns;
-	nluns = cfg->nluns;
-	for (i = 0, lcfg = cfg->luns; i < nluns; ++i, ++curlun_it, ++lcfg) {
-		struct fsg_lun *curlun;
-
-		curlun = kzalloc(sizeof(*curlun), GFP_KERNEL);
-		if (!curlun) {
-			rc = -ENOMEM;
-			common->nluns = i;
-			goto error_release;
-		}
-		*curlun_it = curlun;
-
-		curlun->cdrom = !!lcfg->cdrom;
-		curlun->ro = lcfg->cdrom || lcfg->ro;
-		curlun->initially_ro = curlun->ro;
-		curlun->removable = lcfg->removable;
-		curlun->dev.release = fsg_lun_release;
-		curlun->dev.parent = &gadget->dev;
-		/* curlun->dev.driver = &fsg_driver.driver; XXX */
-		dev_set_drvdata(&curlun->dev, &common->filesem);
-		dev_set_name(&curlun->dev, "lun%d", i);
-		curlun->name = dev_name(&curlun->dev);
-
-		rc = device_register(&curlun->dev);
-		if (rc) {
-			INFO(common, "failed to register LUN%d: %d\n", i, rc);
-			common->nluns = i;
-			put_device(&curlun->dev);
-			kfree(curlun);
-			goto error_release;
-		}
-
-		rc = device_create_file(&curlun->dev,
-					curlun->cdrom
-				      ? &dev_attr_ro_cdrom
-				      : &dev_attr_ro);
-		if (rc)
-			goto error_luns;
-		rc = device_create_file(&curlun->dev,
-					curlun->removable
-				      ? &dev_attr_file
-				      : &dev_attr_file_nonremovable);
-		if (rc)
-			goto error_luns;
-		rc = device_create_file(&curlun->dev, &dev_attr_nofua);
-		if (rc)
-			goto error_luns;
-
-		if (lcfg->filename) {
-			rc = fsg_lun_open(curlun, lcfg->filename);
-			if (rc)
-				goto error_luns;
-		} else if (!curlun->removable) {
-			ERROR(common, "no file given for LUN%d\n", i);
-			rc = -EINVAL;
-			goto error_luns;
-		}
-	}
 
+	rc = fsg_common_create_luns(common, cfg);
+	if (rc)
+		goto error_release;
 
 	/* Prepare inquiryString */
 	i = get_default_bcdDevice();
@@ -2941,7 +3023,6 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 				     : "File-Stor Gadget"),
 		 i);
 
-
 	/* Tell the thread to start working */
 	common->thread_task =
 		kthread_create(fsg_main_thread, common, "file-storage");
@@ -2954,37 +3035,12 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 	INFO(common, FSG_DRIVER_DESC ", version: " FSG_DRIVER_VERSION "\n");
 	INFO(common, "Number of LUNs=%d\n", common->nluns);
 
-	pathbuf = kmalloc(PATH_MAX, GFP_KERNEL);
-	for (i = 0, nluns = common->nluns, curlun_it = common->luns;
-	     i < nluns;
-	     ++curlun_it, ++i) {
-		struct fsg_lun *curlun = *curlun_it;
-		char *p = "(no medium)";
-		if (fsg_lun_is_open(curlun)) {
-			p = "(error)";
-			if (pathbuf) {
-				p = d_path(&curlun->filp->f_path,
-					   pathbuf, PATH_MAX);
-				if (IS_ERR(p))
-					p = "(error)";
-			}
-		}
-		LINFO(curlun, "LUN: %s%s%sfile: %s\n",
-		      curlun->removable ? "removable " : "",
-		      curlun->ro ? "read only " : "",
-		      curlun->cdrom ? "CD-ROM " : "",
-		      p);
-	}
-	kfree(pathbuf);
-
 	DBG(common, "I/O thread pid: %d\n", task_pid_nr(common->thread_task));
 
 	wake_up_process(common->thread_task);
 
 	return common;
 
-error_luns:
-	common->nluns = i + 1;
 error_release:
 	common->state = FSG_STATE_TERMINATED;	/* The thread is dead */
 	/* Call fsg_common_release() directly, ref might be not initialised. */
diff --git a/drivers/usb/gadget/f_mass_storage.h b/drivers/usb/gadget/f_mass_storage.h
index de7aa32565b4..2a51e7b1cc60 100644
--- a/drivers/usb/gadget/f_mass_storage.h
+++ b/drivers/usb/gadget/f_mass_storage.h
@@ -117,6 +117,12 @@ void fsg_common_free_luns(struct fsg_common *common);
 
 int fsg_common_set_nluns(struct fsg_common *common, int nluns);
 
+int fsg_common_create_lun(struct fsg_common *common, struct fsg_lun_config *cfg,
+			  unsigned int id, const char *name,
+			  const char **name_pfx);
+
+int fsg_common_create_luns(struct fsg_common *common, struct fsg_config *cfg);
+
 void fsg_config_from_params(struct fsg_config *cfg,
 			    const struct fsg_module_parameters *params,
 			    unsigned int fsg_num_buffers);
-- 
cgit 


From 23682e3c78c54620ccc6e3462220851e1ae8b02f Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 9 Oct 2013 10:05:59 +0200
Subject: usb: gadget: f_mass_storage: create fsg_common_set_inquiry_string for
 use in fsg_common_init

fsg_common_init is a lengthy function. Factor a portion of it out.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/f_mass_storage.c | 29 +++++++++++++++++++----------
 drivers/usb/gadget/f_mass_storage.h |  3 +++
 2 files changed, 22 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 6a67e2ed75d9..93a26b365e6a 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -2980,11 +2980,27 @@ fail:
 	return rc;
 }
 
+void fsg_common_set_inquiry_string(struct fsg_common *common, const char *vn,
+				   const char *pn)
+{
+	int i;
+
+	/* Prepare inquiryString */
+	i = get_default_bcdDevice();
+	snprintf(common->inquiry_string, sizeof(common->inquiry_string),
+		 "%-8s%-16s%04x", vn ?: "Linux",
+		 /* Assume product name dependent on the first LUN */
+		 pn ?: ((*common->luns)->cdrom
+		     ? "File-CD Gadget"
+		     : "File-Stor Gadget"),
+		 i);
+}
+
 struct fsg_common *fsg_common_init(struct fsg_common *common,
 				   struct usb_composite_dev *cdev,
 				   struct fsg_config *cfg)
 {
-	int i, rc;
+	int rc;
 
 	common = fsg_common_setup(common);
 	if (IS_ERR(common))
@@ -3013,16 +3029,9 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 	if (rc)
 		goto error_release;
 
-	/* Prepare inquiryString */
-	i = get_default_bcdDevice();
-	snprintf(common->inquiry_string, sizeof common->inquiry_string,
-		 "%-8s%-16s%04x", cfg->vendor_name ?: "Linux",
-		 /* Assume product name dependent on the first LUN */
-		 cfg->product_name ?: ((*common->luns)->cdrom
-				     ? "File-CD Gadget"
-				     : "File-Stor Gadget"),
-		 i);
 
+	fsg_common_set_inquiry_string(common, cfg->vendor_name,
+				      cfg->product_name);
 	/* Tell the thread to start working */
 	common->thread_task =
 		kthread_create(fsg_main_thread, common, "file-storage");
diff --git a/drivers/usb/gadget/f_mass_storage.h b/drivers/usb/gadget/f_mass_storage.h
index 2a51e7b1cc60..34a15d6bc3ca 100644
--- a/drivers/usb/gadget/f_mass_storage.h
+++ b/drivers/usb/gadget/f_mass_storage.h
@@ -123,6 +123,9 @@ int fsg_common_create_lun(struct fsg_common *common, struct fsg_lun_config *cfg,
 
 int fsg_common_create_luns(struct fsg_common *common, struct fsg_config *cfg);
 
+void fsg_common_set_inquiry_string(struct fsg_common *common, const char *vn,
+				   const char *pn);
+
 void fsg_config_from_params(struct fsg_config *cfg,
 			    const struct fsg_module_parameters *params,
 			    unsigned int fsg_num_buffers);
-- 
cgit 


From 5de862d73b2c1b3fbb0ac8b45eb496d77347d1b8 Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 9 Oct 2013 10:06:00 +0200
Subject: usb: gadget: f_mass_storage: create fsg_common_run_thread for use in
 fsg_common_init

fsg_common_init is a lengthy function. Factor a portion of it out.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/f_mass_storage.c | 32 +++++++++++++++++++++-----------
 drivers/usb/gadget/f_mass_storage.h |  2 ++
 2 files changed, 23 insertions(+), 11 deletions(-)

diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 93a26b365e6a..5b99aa1846c3 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -2996,6 +2996,24 @@ void fsg_common_set_inquiry_string(struct fsg_common *common, const char *vn,
 		 i);
 }
 
+int fsg_common_run_thread(struct fsg_common *common)
+{
+	common->state = FSG_STATE_IDLE;
+	/* Tell the thread to start working */
+	common->thread_task =
+		kthread_create(fsg_main_thread, common, "file-storage");
+	if (IS_ERR(common->thread_task)) {
+		common->state = FSG_STATE_TERMINATED;
+		return PTR_ERR(common->thread_task);
+	}
+
+	DBG(common, "I/O thread pid: %d\n", task_pid_nr(common->thread_task));
+
+	wake_up_process(common->thread_task);
+
+	return 0;
+}
+
 struct fsg_common *fsg_common_init(struct fsg_common *common,
 				   struct usb_composite_dev *cdev,
 				   struct fsg_config *cfg)
@@ -3032,21 +3050,13 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 
 	fsg_common_set_inquiry_string(common, cfg->vendor_name,
 				      cfg->product_name);
-	/* Tell the thread to start working */
-	common->thread_task =
-		kthread_create(fsg_main_thread, common, "file-storage");
-	if (IS_ERR(common->thread_task)) {
-		rc = PTR_ERR(common->thread_task);
-		goto error_release;
-	}
 
 	/* Information */
 	INFO(common, FSG_DRIVER_DESC ", version: " FSG_DRIVER_VERSION "\n");
-	INFO(common, "Number of LUNs=%d\n", common->nluns);
-
-	DBG(common, "I/O thread pid: %d\n", task_pid_nr(common->thread_task));
 
-	wake_up_process(common->thread_task);
+	rc = fsg_common_run_thread(common);
+	if (rc)
+		goto error_release;
 
 	return common;
 
diff --git a/drivers/usb/gadget/f_mass_storage.h b/drivers/usb/gadget/f_mass_storage.h
index 34a15d6bc3ca..7d9e0bc1cbf1 100644
--- a/drivers/usb/gadget/f_mass_storage.h
+++ b/drivers/usb/gadget/f_mass_storage.h
@@ -126,6 +126,8 @@ int fsg_common_create_luns(struct fsg_common *common, struct fsg_config *cfg);
 void fsg_common_set_inquiry_string(struct fsg_common *common, const char *vn,
 				   const char *pn);
 
+int fsg_common_run_thread(struct fsg_common *common);
+
 void fsg_config_from_params(struct fsg_config *cfg,
 			    const struct fsg_module_parameters *params,
 			    unsigned int fsg_num_buffers);
-- 
cgit 


From e5eaa0dc4866181aff655ef3f94cd990172b751f Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 9 Oct 2013 10:06:01 +0200
Subject: usb: gadget: f_mass_storage: convert to new function interface with
 backward compatibility

Converting mass storage to the new function interface requires converting
the USB mass storage's function code and its users.
This patch converts the f_mass_storage.c to the new function interface.
The file is now compiled into a separate usb_f_mass_storage.ko module.
The old function interface is provided by means of a preprocessor conditional
directives. After all users are converted, the old interface can be removed.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/Kconfig          |   3 +
 drivers/usb/gadget/Makefile         |   2 +
 drivers/usb/gadget/acm_ms.c         |   1 +
 drivers/usb/gadget/f_mass_storage.c | 178 +++++++++++++++++++++++++++++++-----
 drivers/usb/gadget/f_mass_storage.h |  15 +++
 drivers/usb/gadget/mass_storage.c   |   1 +
 drivers/usb/gadget/multi.c          |   1 +
 7 files changed, 179 insertions(+), 22 deletions(-)

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 98220dcca315..40adaf08d3a5 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -528,6 +528,9 @@ config USB_F_RNDIS
 config USB_U_MS
 	tristate
 
+config USB_F_MASS_STORAGE
+	tristate
+
 choice
 	tristate "USB Gadget Drivers"
 	default USB_ETH
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index d90a0b079182..4a86b0c06676 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -62,6 +62,8 @@ usb_f_rndis-y			:= f_rndis.o
 obj-$(CONFIG_USB_F_RNDIS)	+= usb_f_rndis.o
 u_ms-y				:= storage_common.o
 obj-$(CONFIG_USB_U_MS)		+= u_ms.o
+usb_f_mass_storage-y		:= f_mass_storage.o
+obj-$(CONFIG_USB_F_MASS_STORAGE)+= usb_f_mass_storage.o
 
 #
 # USB gadget drivers
diff --git a/drivers/usb/gadget/acm_ms.c b/drivers/usb/gadget/acm_ms.c
index 992ffb00272f..31aae8fce426 100644
--- a/drivers/usb/gadget/acm_ms.c
+++ b/drivers/usb/gadget/acm_ms.c
@@ -40,6 +40,7 @@
  * the runtime footprint, and giving us at least some parts of what
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
+#define USB_FMS_INCLUDED
 #include "f_mass_storage.c"
 
 /*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 5b99aa1846c3..a063cd5e5533 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -213,6 +213,7 @@
 #include <linux/spinlock.h>
 #include <linux/string.h>
 #include <linux/freezer.h>
+#include <linux/module.h>
 
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
@@ -226,6 +227,13 @@
 #define FSG_DRIVER_DESC		"Mass Storage Function"
 #define FSG_DRIVER_VERSION	"2009/09/11"
 
+/* to avoid a lot of #ifndef-#endif in the temporary compatibility layer */
+#ifndef USB_FMS_INCLUDED
+#define EXPORT_SYMBOL_GPL_IF_MODULE(m) EXPORT_SYMBOL_GPL(m);
+#else
+#define EXPORT_SYMBOL_GPL_IF_MODULE(m)
+#endif
+
 static const char fsg_string_interface[] = "Mass Storage";
 
 #include "storage_common.h"
@@ -2627,11 +2635,13 @@ void fsg_common_get(struct fsg_common *common)
 {
 	kref_get(&common->ref);
 }
+EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_get);
 
 void fsg_common_put(struct fsg_common *common)
 {
 	kref_put(&common->ref, fsg_common_release);
 }
+EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_put);
 
 /* check if fsg_num_buffers is within a valid range */
 static inline int fsg_num_buffers_validate(unsigned int fsg_num_buffers)
@@ -2643,7 +2653,7 @@ static inline int fsg_num_buffers_validate(unsigned int fsg_num_buffers)
 	return -EINVAL;
 }
 
-static struct fsg_common *fsg_common_setup(struct fsg_common *common)
+static struct fsg_common *fsg_common_setup(struct fsg_common *common, bool zero)
 {
 	if (!common) {
 		common = kzalloc(sizeof(*common), GFP_KERNEL);
@@ -2651,7 +2661,8 @@ static struct fsg_common *fsg_common_setup(struct fsg_common *common)
 			return ERR_PTR(-ENOMEM);
 		common->free_storage_on_release = 1;
 	} else {
-		memset(common, 0, sizeof(*common));
+		if (zero)
+			memset(common, 0, sizeof(*common));
 		common->free_storage_on_release = 0;
 	}
 	init_rwsem(&common->filesem);
@@ -2668,6 +2679,7 @@ void fsg_common_set_sysfs(struct fsg_common *common, bool sysfs)
 {
 	common->sysfs = sysfs;
 }
+EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_set_sysfs);
 
 static void _fsg_common_free_buffers(struct fsg_buffhd *buffhds, unsigned n)
 {
@@ -2723,6 +2735,7 @@ error_release:
 
 	return -ENOMEM;
 }
+EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_set_num_buffers);
 
 static inline void fsg_common_remove_sysfs(struct fsg_lun *lun)
 {
@@ -2761,6 +2774,7 @@ void fsg_common_remove_lun(struct fsg_lun *lun, bool sysfs)
 	fsg_lun_close(lun);
 	kfree(lun);
 }
+EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_remove_lun);
 
 static void _fsg_common_remove_luns(struct fsg_common *common, int n)
 {
@@ -2772,6 +2786,7 @@ static void _fsg_common_remove_luns(struct fsg_common *common, int n)
 			common->luns[i] = NULL;
 		}
 }
+EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_remove_luns);
 
 void fsg_common_remove_luns(struct fsg_common *common)
 {
@@ -2784,6 +2799,7 @@ void fsg_common_free_luns(struct fsg_common *common)
 	kfree(common->luns);
 	common->luns = NULL;
 }
+EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_free_luns);
 
 int fsg_common_set_nluns(struct fsg_common *common, int nluns)
 {
@@ -2809,6 +2825,14 @@ int fsg_common_set_nluns(struct fsg_common *common, int nluns)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_set_nluns);
+
+void fsg_common_free_buffers(struct fsg_common *common)
+{
+	_fsg_common_free_buffers(common->buffhds, common->fsg_num_buffers);
+	common->buffhds = NULL;
+}
+EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_free_buffers);
 
 int fsg_common_set_cdev(struct fsg_common *common,
 			 struct usb_composite_dev *cdev, bool can_stall)
@@ -2836,6 +2860,7 @@ int fsg_common_set_cdev(struct fsg_common *common,
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_set_cdev);
 
 static inline int fsg_common_add_sysfs(struct fsg_common *common,
 				       struct fsg_lun *lun)
@@ -2958,6 +2983,7 @@ error_sysfs:
 	kfree(lun);
 	return rc;
 }
+EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_create_lun);
 
 int fsg_common_create_luns(struct fsg_common *common, struct fsg_config *cfg)
 {
@@ -2979,6 +3005,7 @@ fail:
 	_fsg_common_remove_luns(common, i);
 	return rc;
 }
+EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_create_luns);
 
 void fsg_common_set_inquiry_string(struct fsg_common *common, const char *vn,
 				   const char *pn)
@@ -2995,6 +3022,7 @@ void fsg_common_set_inquiry_string(struct fsg_common *common, const char *vn,
 		     : "File-Stor Gadget"),
 		 i);
 }
+EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_set_inquiry_string);
 
 int fsg_common_run_thread(struct fsg_common *common)
 {
@@ -3013,6 +3041,7 @@ int fsg_common_run_thread(struct fsg_common *common)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_run_thread);
 
 struct fsg_common *fsg_common_init(struct fsg_common *common,
 				   struct usb_composite_dev *cdev,
@@ -3020,7 +3049,7 @@ struct fsg_common *fsg_common_init(struct fsg_common *common,
 {
 	int rc;
 
-	common = fsg_common_setup(common);
+	common = fsg_common_setup(common, !!common);
 	if (IS_ERR(common))
 		return common;
 	fsg_common_set_sysfs(common, true);
@@ -3066,6 +3095,7 @@ error_release:
 	fsg_common_release(&common->ref);
 	return ERR_PTR(rc);
 }
+EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_init);
 
 static void fsg_common_release(struct kref *ref)
 {
@@ -3105,24 +3135,6 @@ static void fsg_common_release(struct kref *ref)
 
 /*-------------------------------------------------------------------------*/
 
-static void fsg_unbind(struct usb_configuration *c, struct usb_function *f)
-{
-	struct fsg_dev		*fsg = fsg_from_func(f);
-	struct fsg_common	*common = fsg->common;
-
-	DBG(fsg, "unbind\n");
-	if (fsg->common->fsg == fsg) {
-		fsg->common->new_fsg = NULL;
-		raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE);
-		/* FIXME: make interruptible or killable somehow? */
-		wait_event(common->fsg_wait, common->fsg != fsg);
-	}
-
-	fsg_common_put(common);
-	usb_free_all_descriptors(&fsg->function);
-	kfree(fsg);
-}
-
 static int fsg_bind(struct usb_configuration *c, struct usb_function *f)
 {
 	struct fsg_dev		*fsg = fsg_from_func(f);
@@ -3132,6 +3144,21 @@ static int fsg_bind(struct usb_configuration *c, struct usb_function *f)
 	unsigned		max_burst;
 	int			ret;
 
+#ifndef USB_FMS_INCLUDED
+	struct fsg_opts		*opts;
+	opts = fsg_opts_from_func_inst(f->fi);
+	if (!opts->no_configfs) {
+		ret = fsg_common_set_cdev(fsg->common, c->cdev,
+					  fsg->common->can_stall);
+		if (ret)
+			return ret;
+		fsg_common_set_inquiry_string(fsg->common, 0, 0);
+		ret = fsg_common_run_thread(fsg->common);
+		if (ret)
+			return ret;
+	}
+#endif
+
 	fsg->gadget = gadget;
 
 	/* New interface */
@@ -3183,7 +3210,31 @@ autoconf_fail:
 	return -ENOTSUPP;
 }
 
-/****************************** ADD FUNCTION ******************************/
+/****************************** ALLOCATE FUNCTION *************************/
+
+static void fsg_unbind(struct usb_configuration *c, struct usb_function *f)
+{
+	struct fsg_dev		*fsg = fsg_from_func(f);
+	struct fsg_common	*common = fsg->common;
+
+	DBG(fsg, "unbind\n");
+	if (fsg->common->fsg == fsg) {
+		fsg->common->new_fsg = NULL;
+		raise_exception(fsg->common, FSG_STATE_CONFIG_CHANGE);
+		/* FIXME: make interruptible or killable somehow? */
+		wait_event(common->fsg_wait, common->fsg != fsg);
+	}
+
+#ifdef USB_FMS_INCLUDED
+	fsg_common_put(common);
+#endif
+	usb_free_all_descriptors(&fsg->function);
+#ifdef USB_FMS_INCLUDED
+	kfree(fsg);
+#endif
+}
+
+#ifdef USB_FMS_INCLUDED
 
 static int fsg_bind_config(struct usb_composite_dev *cdev,
 			   struct usb_configuration *c,
@@ -3220,6 +3271,88 @@ static int fsg_bind_config(struct usb_composite_dev *cdev,
 	return rc;
 }
 
+#else
+
+static void fsg_free_inst(struct usb_function_instance *fi)
+{
+	struct fsg_opts *opts;
+
+	opts = fsg_opts_from_func_inst(fi);
+	fsg_common_put(opts->common);
+	kfree(opts);
+}
+
+static struct usb_function_instance *fsg_alloc_inst(void)
+{
+	struct fsg_opts *opts;
+	int rc;
+
+	opts = kzalloc(sizeof(*opts), GFP_KERNEL);
+	if (!opts)
+		return ERR_PTR(-ENOMEM);
+	opts->func_inst.free_func_inst = fsg_free_inst;
+	opts->common = fsg_common_setup(opts->common, false);
+	if (IS_ERR(opts->common)) {
+		rc = PTR_ERR(opts->common);
+		goto release_opts;
+	}
+	rc = fsg_common_set_nluns(opts->common, FSG_MAX_LUNS);
+	if (rc)
+		goto release_opts;
+
+	rc = fsg_common_set_num_buffers(opts->common,
+					CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS);
+	if (rc)
+		goto release_luns;
+
+	pr_info(FSG_DRIVER_DESC ", version: " FSG_DRIVER_VERSION "\n");
+
+	return &opts->func_inst;
+
+release_luns:
+	kfree(opts->common->luns);
+release_opts:
+	kfree(opts);
+	return ERR_PTR(rc);
+}
+
+static void fsg_free(struct usb_function *f)
+{
+	struct fsg_dev *fsg;
+
+	fsg = container_of(f, struct fsg_dev, function);
+
+	kfree(fsg);
+}
+
+static struct usb_function *fsg_alloc(struct usb_function_instance *fi)
+{
+	struct fsg_opts *opts = fsg_opts_from_func_inst(fi);
+	struct fsg_common *common = opts->common;
+	struct fsg_dev *fsg;
+
+	fsg = kzalloc(sizeof(*fsg), GFP_KERNEL);
+	if (unlikely(!fsg))
+		return ERR_PTR(-ENOMEM);
+
+	fsg->function.name	= FSG_DRIVER_DESC;
+	fsg->function.bind	= fsg_bind;
+	fsg->function.unbind	= fsg_unbind;
+	fsg->function.setup	= fsg_setup;
+	fsg->function.set_alt	= fsg_set_alt;
+	fsg->function.disable	= fsg_disable;
+	fsg->function.free_func	= fsg_free;
+
+	fsg->common               = common;
+
+	return &fsg->function;
+}
+
+DECLARE_USB_FUNCTION_INIT(mass_storage, fsg_alloc_inst, fsg_alloc);
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Michal Nazarewicz");
+
+#endif
 
 /************************* Module parameters *************************/
 
@@ -3256,4 +3389,5 @@ void fsg_config_from_params(struct fsg_config *cfg,
 	cfg->can_stall = params->stall;
 	cfg->fsg_num_buffers = fsg_num_buffers;
 }
+EXPORT_SYMBOL_GPL_IF_MODULE(fsg_config_from_params);
 
diff --git a/drivers/usb/gadget/f_mass_storage.h b/drivers/usb/gadget/f_mass_storage.h
index 7d9e0bc1cbf1..42f7db408478 100644
--- a/drivers/usb/gadget/f_mass_storage.h
+++ b/drivers/usb/gadget/f_mass_storage.h
@@ -1,6 +1,7 @@
 #ifndef USB_F_MASS_STORAGE_H
 #define USB_F_MASS_STORAGE_H
 
+#include <linux/usb/composite.h>
 #include "storage_common.h"
 
 struct fsg_module_parameters {
@@ -70,6 +71,12 @@ struct fsg_operations {
 	int (*thread_exits)(struct fsg_common *common);
 };
 
+struct fsg_opts {
+	struct fsg_common *common;
+	struct usb_function_instance func_inst;
+	bool no_configfs; /* for legacy gadgets */
+};
+
 struct fsg_lun_config {
 	const char *filename;
 	char ro;
@@ -94,6 +101,12 @@ struct fsg_config {
 	unsigned int		fsg_num_buffers;
 };
 
+static inline struct fsg_opts *
+fsg_opts_from_func_inst(const struct usb_function_instance *fi)
+{
+	return container_of(fi, struct fsg_opts, func_inst);
+}
+
 void fsg_common_get(struct fsg_common *common);
 
 void fsg_common_put(struct fsg_common *common);
@@ -106,6 +119,8 @@ void fsg_common_set_sysfs(struct fsg_common *common, bool sysfs);
 
 int fsg_common_set_num_buffers(struct fsg_common *common, unsigned int n);
 
+void fsg_common_free_buffers(struct fsg_common *common);
+
 int fsg_common_set_cdev(struct fsg_common *common,
 			struct usb_composite_dev *cdev, bool can_stall);
 
diff --git a/drivers/usb/gadget/mass_storage.c b/drivers/usb/gadget/mass_storage.c
index 4723d1b04cff..f6702514f5d7 100644
--- a/drivers/usb/gadget/mass_storage.c
+++ b/drivers/usb/gadget/mass_storage.c
@@ -55,6 +55,7 @@
  * the runtime footprint, and giving us at least some parts of what
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
+#define USB_FMS_INCLUDED
 #include "f_mass_storage.c"
 
 /*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c
index 6867d9dbbca4..42a5bed75388 100644
--- a/drivers/usb/gadget/multi.c
+++ b/drivers/usb/gadget/multi.c
@@ -41,6 +41,7 @@ MODULE_LICENSE("GPL");
  * the runtime footprint, and giving us at least some parts of what
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
+#define USB_FMS_INCLUDED
 #include "f_mass_storage.c"
 
 #define USBF_ECM_INCLUDED
-- 
cgit 


From 2412fbf1ffac21da14308924ccb17fe1a5506b1a Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 9 Oct 2013 10:06:02 +0200
Subject: usb: gadget: mass_storage: convert to new interface of f_mass_storage

Convert old mass_storage gadget to use the new interface of f_mass_storage
so that later the compatibility layer in f_mass_storage can be removed.

struct fsg_common is not known to mass_storage.c, so a setter method
is added to f_mass_storage.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/Kconfig          |   1 +
 drivers/usb/gadget/f_mass_storage.c |   7 +++
 drivers/usb/gadget/f_mass_storage.h |   3 +
 drivers/usb/gadget/mass_storage.c   | 107 +++++++++++++++++++++++++++---------
 4 files changed, 91 insertions(+), 27 deletions(-)

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 40adaf08d3a5..7d64e474c48b 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -885,6 +885,7 @@ config USB_MASS_STORAGE
 	depends on BLOCK
 	select USB_LIBCOMPOSITE
 	select USB_U_MS
+	select USB_F_MASS_STORAGE
 	help
 	  The Mass Storage Gadget acts as a USB Mass Storage disk drive.
 	  As its storage repository it can use a regular file or a block
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index a063cd5e5533..d6c2da0fb759 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -2827,6 +2827,13 @@ int fsg_common_set_nluns(struct fsg_common *common, int nluns)
 }
 EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_set_nluns);
 
+void fsg_common_set_ops(struct fsg_common *common,
+			const struct fsg_operations *ops)
+{
+	common->ops = ops;
+}
+EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_set_ops);
+
 void fsg_common_free_buffers(struct fsg_common *common)
 {
 	_fsg_common_free_buffers(common->buffhds, common->fsg_num_buffers);
diff --git a/drivers/usb/gadget/f_mass_storage.h b/drivers/usb/gadget/f_mass_storage.h
index 42f7db408478..b53cf8c9189e 100644
--- a/drivers/usb/gadget/f_mass_storage.h
+++ b/drivers/usb/gadget/f_mass_storage.h
@@ -132,6 +132,9 @@ void fsg_common_free_luns(struct fsg_common *common);
 
 int fsg_common_set_nluns(struct fsg_common *common, int nluns);
 
+void fsg_common_set_ops(struct fsg_common *common,
+			const struct fsg_operations *ops);
+
 int fsg_common_create_lun(struct fsg_common *common, struct fsg_lun_config *cfg,
 			  unsigned int id, const char *name,
 			  const char **name_pfx);
diff --git a/drivers/usb/gadget/mass_storage.c b/drivers/usb/gadget/mass_storage.c
index f6702514f5d7..8e27a8c96444 100644
--- a/drivers/usb/gadget/mass_storage.c
+++ b/drivers/usb/gadget/mass_storage.c
@@ -46,17 +46,7 @@
 #define FSG_VENDOR_ID	0x0525	/* NetChip */
 #define FSG_PRODUCT_ID	0xa4a5	/* Linux-USB File-backed Storage Gadget */
 
-/*-------------------------------------------------------------------------*/
-
-/*
- * kbuild is not very cooperative with respect to linking separately
- * compiled library objects into one module.  So for now we won't use
- * separate compilation ... ensuring init/exit sections work to shrink
- * the runtime footprint, and giving us at least some parts of what
- * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
- */
-#define USB_FMS_INCLUDED
-#include "f_mass_storage.c"
+#include "f_mass_storage.h"
 
 /*-------------------------------------------------------------------------*/
 USB_GADGET_COMPOSITE_OPTIONS();
@@ -107,6 +97,9 @@ static struct usb_gadget_strings *dev_strings[] = {
 	NULL,
 };
 
+static struct usb_function_instance *fi_msg;
+static struct usb_function *f_msg;
+
 /****************************** Configurations ******************************/
 
 static struct fsg_module_parameters mod_data = {
@@ -139,13 +132,7 @@ static int msg_thread_exits(struct fsg_common *common)
 
 static int __init msg_do_config(struct usb_configuration *c)
 {
-	static const struct fsg_operations ops = {
-		.thread_exits = msg_thread_exits,
-	};
-	static struct fsg_common common;
-
-	struct fsg_common *retp;
-	struct fsg_config config;
+	struct fsg_opts *opts;
 	int ret;
 
 	if (gadget_is_otg(c->cdev->gadget)) {
@@ -153,15 +140,24 @@ static int __init msg_do_config(struct usb_configuration *c)
 		c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
 	}
 
-	fsg_config_from_params(&config, &mod_data, fsg_num_buffers);
-	config.ops = &ops;
+	opts = fsg_opts_from_func_inst(fi_msg);
+
+	f_msg = usb_get_function(fi_msg);
+	if (IS_ERR(f_msg))
+		return PTR_ERR(f_msg);
 
-	retp = fsg_common_init(&common, c->cdev, &config);
-	if (IS_ERR(retp))
-		return PTR_ERR(retp);
+	ret = fsg_common_run_thread(opts->common);
+	if (ret)
+		goto put_func;
 
-	ret = fsg_bind_config(c->cdev, c, &common);
-	fsg_common_put(&common);
+	ret = usb_add_function(c, f_msg);
+	if (ret)
+		goto put_func;
+
+	return 0;
+
+put_func:
+	usb_put_function(f_msg);
 	return ret;
 }
 
@@ -176,23 +172,79 @@ static struct usb_configuration msg_config_driver = {
 
 static int __init msg_bind(struct usb_composite_dev *cdev)
 {
+	static const struct fsg_operations ops = {
+		.thread_exits = msg_thread_exits,
+	};
+	struct fsg_opts *opts;
+	struct fsg_config config;
 	int status;
 
+	fi_msg = usb_get_function_instance("mass_storage");
+	if (IS_ERR(fi_msg))
+		return PTR_ERR(fi_msg);
+
+	fsg_config_from_params(&config, &mod_data, fsg_num_buffers);
+	opts = fsg_opts_from_func_inst(fi_msg);
+
+	opts->no_configfs = true;
+	status = fsg_common_set_num_buffers(opts->common, fsg_num_buffers);
+	if (status)
+		goto fail;
+
+	status = fsg_common_set_nluns(opts->common, config.nluns);
+	if (status)
+		goto fail_set_nluns;
+
+	fsg_common_set_ops(opts->common, &ops);
+
+	status = fsg_common_set_cdev(opts->common, cdev, config.can_stall);
+	if (status)
+		goto fail_set_cdev;
+
+	fsg_common_set_sysfs(opts->common, true);
+	status = fsg_common_create_luns(opts->common, &config);
+	if (status)
+		goto fail_set_cdev;
+
+	fsg_common_set_inquiry_string(opts->common, config.vendor_name,
+				      config.product_name);
+
 	status = usb_string_ids_tab(cdev, strings_dev);
 	if (status < 0)
-		return status;
+		goto fail_string_ids;
 	msg_device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
 
 	status = usb_add_config(cdev, &msg_config_driver, msg_do_config);
 	if (status < 0)
-		return status;
+		goto fail_string_ids;
+
 	usb_composite_overwrite_options(cdev, &coverwrite);
 	dev_info(&cdev->gadget->dev,
 		 DRIVER_DESC ", version: " DRIVER_VERSION "\n");
 	set_bit(0, &msg_registered);
 	return 0;
+
+fail_string_ids:
+	fsg_common_remove_luns(opts->common);
+fail_set_cdev:
+	fsg_common_free_luns(opts->common);
+fail_set_nluns:
+	fsg_common_free_buffers(opts->common);
+fail:
+	usb_put_function_instance(fi_msg);
+	return status;
 }
 
+static int msg_unbind(struct usb_composite_dev *cdev)
+{
+	if (!IS_ERR(f_msg))
+		usb_put_function(f_msg);
+
+	if (!IS_ERR(fi_msg))
+		usb_put_function_instance(fi_msg);
+
+	return 0;
+}
 
 /****************************** Some noise ******************************/
 
@@ -203,6 +255,7 @@ static __refdata struct usb_composite_driver msg_driver = {
 	.needs_serial	= 1,
 	.strings	= dev_strings,
 	.bind		= msg_bind,
+	.unbind		= msg_unbind,
 };
 
 MODULE_DESCRIPTION(DRIVER_DESC);
-- 
cgit 


From 77850ae28607f33c1388928b9a4146ee2e0e57cf Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 9 Oct 2013 10:06:03 +0200
Subject: usb: gadget: storage_common: make attribute operations more generic

Show/store methods for sysfs attributes contain code which can be used
also by configfs. Make them abstract the source the lun and rw_semaphore
are taken from.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/f_mass_storage.c | 27 +++++++++++++++++++++------
 drivers/usb/gadget/storage_common.c | 31 ++++++-------------------------
 drivers/usb/gadget/storage_common.h | 21 +++++++++++----------
 3 files changed, 38 insertions(+), 41 deletions(-)

diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index d6c2da0fb759..d80be5f0e6d2 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -2581,37 +2581,52 @@ static int fsg_main_thread(void *common_)
 
 static ssize_t ro_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
-	return fsg_show_ro(dev, attr, buf);
+	struct fsg_lun		*curlun = fsg_lun_from_dev(dev);
+
+	return fsg_show_ro(curlun, buf);
 }
 
 static ssize_t nofua_show(struct device *dev, struct device_attribute *attr,
 			  char *buf)
 {
-	return fsg_show_nofua(dev, attr, buf);
+	struct fsg_lun		*curlun = fsg_lun_from_dev(dev);
+
+	return fsg_show_nofua(curlun, buf);
 }
 
 static ssize_t file_show(struct device *dev, struct device_attribute *attr,
 			 char *buf)
 {
-	return fsg_show_file(dev, attr, buf);
+	struct fsg_lun		*curlun = fsg_lun_from_dev(dev);
+	struct rw_semaphore	*filesem = dev_get_drvdata(dev);
+
+	return fsg_show_file(curlun, filesem, buf);
 }
 
 static ssize_t ro_store(struct device *dev, struct device_attribute *attr,
 			const char *buf, size_t count)
 {
-	return fsg_store_ro(dev, attr, buf, count);
+	struct fsg_lun		*curlun = fsg_lun_from_dev(dev);
+	struct rw_semaphore	*filesem = dev_get_drvdata(dev);
+
+	return fsg_store_ro(curlun, filesem, buf, count);
 }
 
 static ssize_t nofua_store(struct device *dev, struct device_attribute *attr,
 			   const char *buf, size_t count)
 {
-	return fsg_store_nofua(dev, attr, buf, count);
+	struct fsg_lun		*curlun = fsg_lun_from_dev(dev);
+
+	return fsg_store_nofua(curlun, buf, count);
 }
 
 static ssize_t file_store(struct device *dev, struct device_attribute *attr,
 			  const char *buf, size_t count)
 {
-	return fsg_store_file(dev, attr, buf, count);
+	struct fsg_lun		*curlun = fsg_lun_from_dev(dev);
+	struct rw_semaphore	*filesem = dev_get_drvdata(dev);
+
+	return fsg_store_file(curlun, filesem, buf, count);
 }
 
 static DEVICE_ATTR_RW(ro);
diff --git a/drivers/usb/gadget/storage_common.c b/drivers/usb/gadget/storage_common.c
index 3e2500f19140..969948dc2596 100644
--- a/drivers/usb/gadget/storage_common.c
+++ b/drivers/usb/gadget/storage_common.c
@@ -31,11 +31,6 @@
 
 #include "storage_common.h"
 
-static inline struct fsg_lun *fsg_lun_from_dev(struct device *dev)
-{
-	return container_of(dev, struct fsg_lun, dev);
-}
-
 /* There is only one interface. */
 
 struct usb_interface_descriptor fsg_intf_desc = {
@@ -324,31 +319,23 @@ EXPORT_SYMBOL(store_cdrom_address);
 /*-------------------------------------------------------------------------*/
 
 
-ssize_t fsg_show_ro(struct device *dev, struct device_attribute *attr,
-		    char *buf)
+ssize_t fsg_show_ro(struct fsg_lun *curlun, char *buf)
 {
-	struct fsg_lun	*curlun = fsg_lun_from_dev(dev);
-
 	return sprintf(buf, "%d\n", fsg_lun_is_open(curlun)
 				  ? curlun->ro
 				  : curlun->initially_ro);
 }
 EXPORT_SYMBOL(fsg_show_ro);
 
-ssize_t fsg_show_nofua(struct device *dev, struct device_attribute *attr,
-		       char *buf)
+ssize_t fsg_show_nofua(struct fsg_lun *curlun, char *buf)
 {
-	struct fsg_lun	*curlun = fsg_lun_from_dev(dev);
-
 	return sprintf(buf, "%u\n", curlun->nofua);
 }
 EXPORT_SYMBOL(fsg_show_nofua);
 
-ssize_t fsg_show_file(struct device *dev, struct device_attribute *attr,
+ssize_t fsg_show_file(struct fsg_lun *curlun, struct rw_semaphore *filesem,
 		      char *buf)
 {
-	struct fsg_lun	*curlun = fsg_lun_from_dev(dev);
-	struct rw_semaphore	*filesem = dev_get_drvdata(dev);
 	char		*p;
 	ssize_t		rc;
 
@@ -373,12 +360,10 @@ ssize_t fsg_show_file(struct device *dev, struct device_attribute *attr,
 EXPORT_SYMBOL(fsg_show_file);
 
 
-ssize_t fsg_store_ro(struct device *dev, struct device_attribute *attr,
+ssize_t fsg_store_ro(struct fsg_lun *curlun, struct rw_semaphore *filesem,
 		     const char *buf, size_t count)
 {
 	ssize_t		rc;
-	struct fsg_lun	*curlun = fsg_lun_from_dev(dev);
-	struct rw_semaphore	*filesem = dev_get_drvdata(dev);
 	unsigned	ro;
 
 	rc = kstrtouint(buf, 2, &ro);
@@ -404,10 +389,8 @@ ssize_t fsg_store_ro(struct device *dev, struct device_attribute *attr,
 }
 EXPORT_SYMBOL(fsg_store_ro);
 
-ssize_t fsg_store_nofua(struct device *dev, struct device_attribute *attr,
-			const char *buf, size_t count)
+ssize_t fsg_store_nofua(struct fsg_lun *curlun, const char *buf, size_t count)
 {
-	struct fsg_lun	*curlun = fsg_lun_from_dev(dev);
 	unsigned	nofua;
 	int		ret;
 
@@ -425,11 +408,9 @@ ssize_t fsg_store_nofua(struct device *dev, struct device_attribute *attr,
 }
 EXPORT_SYMBOL(fsg_store_nofua);
 
-ssize_t fsg_store_file(struct device *dev, struct device_attribute *attr,
+ssize_t fsg_store_file(struct fsg_lun *curlun, struct rw_semaphore *filesem,
 		       const char *buf, size_t count)
 {
-	struct fsg_lun	*curlun = fsg_lun_from_dev(dev);
-	struct rw_semaphore	*filesem = dev_get_drvdata(dev);
 	int		rc = 0;
 
 	if (curlun->prevent_medium_removal && fsg_lun_is_open(curlun)) {
diff --git a/drivers/usb/gadget/storage_common.h b/drivers/usb/gadget/storage_common.h
index d8cc090aca35..16cf07bb9e75 100644
--- a/drivers/usb/gadget/storage_common.h
+++ b/drivers/usb/gadget/storage_common.h
@@ -181,6 +181,11 @@ static inline u32 get_unaligned_be24(u8 *buf)
 	return 0xffffff & (u32) get_unaligned_be32(buf - 1);
 }
 
+static inline struct fsg_lun *fsg_lun_from_dev(struct device *dev)
+{
+	return container_of(dev, struct fsg_lun, dev);
+}
+
 enum {
 	FSG_STRING_INTERFACE
 };
@@ -205,18 +210,14 @@ void fsg_lun_close(struct fsg_lun *curlun);
 int fsg_lun_open(struct fsg_lun *curlun, const char *filename);
 int fsg_lun_fsync_sub(struct fsg_lun *curlun);
 void store_cdrom_address(u8 *dest, int msf, u32 addr);
-ssize_t fsg_show_ro(struct device *dev, struct device_attribute *attr,
-		    char *buf);
-ssize_t fsg_show_nofua(struct device *dev, struct device_attribute *attr,
-		       char *buf);
-ssize_t fsg_show_file(struct device *dev, struct device_attribute *attr,
+ssize_t fsg_show_ro(struct fsg_lun *curlun, char *buf);
+ssize_t fsg_show_nofua(struct fsg_lun *curlun, char *buf);
+ssize_t fsg_show_file(struct fsg_lun *curlun, struct rw_semaphore *filesem,
 		      char *buf);
-ssize_t fsg_store_ro(struct device *dev, struct device_attribute *attr,
+ssize_t fsg_store_ro(struct fsg_lun *curlun, struct rw_semaphore *filesem,
 		     const char *buf, size_t count);
-ssize_t fsg_store_nofua(struct device *dev,
-			struct device_attribute *attr,
-			const char *buf, size_t count);
-ssize_t fsg_store_file(struct device *dev, struct device_attribute *attr,
+ssize_t fsg_store_nofua(struct fsg_lun *curlun, const char *buf, size_t count);
+ssize_t fsg_store_file(struct fsg_lun *curlun, struct rw_semaphore *filesem,
 		       const char *buf, size_t count);
 
 #endif /* USB_STORAGE_COMMON_H */
-- 
cgit 


From 864328ef8e735403f85b768284001a4187d6868f Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 9 Oct 2013 10:06:04 +0200
Subject: usb: gadget: storage_common: add methods to show/store 'cdrom' and
 'removable'

This will be required by configfs integration.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/storage_common.c | 42 +++++++++++++++++++++++++++++++++++++
 drivers/usb/gadget/storage_common.h |  5 +++++
 2 files changed, 47 insertions(+)

diff --git a/drivers/usb/gadget/storage_common.c b/drivers/usb/gadget/storage_common.c
index 969948dc2596..c7b78a1f6086 100644
--- a/drivers/usb/gadget/storage_common.c
+++ b/drivers/usb/gadget/storage_common.c
@@ -359,6 +359,17 @@ ssize_t fsg_show_file(struct fsg_lun *curlun, struct rw_semaphore *filesem,
 }
 EXPORT_SYMBOL(fsg_show_file);
 
+ssize_t fsg_show_cdrom(struct fsg_lun *curlun, char *buf)
+{
+	return sprintf(buf, "%u\n", curlun->cdrom);
+}
+EXPORT_SYMBOL(fsg_show_cdrom);
+
+ssize_t fsg_show_removable(struct fsg_lun *curlun, char *buf)
+{
+	return sprintf(buf, "%u\n", curlun->removable);
+}
+EXPORT_SYMBOL(fsg_show_removable);
 
 ssize_t fsg_store_ro(struct fsg_lun *curlun, struct rw_semaphore *filesem,
 		     const char *buf, size_t count)
@@ -439,4 +450,35 @@ ssize_t fsg_store_file(struct fsg_lun *curlun, struct rw_semaphore *filesem,
 }
 EXPORT_SYMBOL(fsg_store_file);
 
+ssize_t fsg_store_cdrom(struct fsg_lun *curlun, const char *buf, size_t count)
+{
+	unsigned	cdrom;
+	int		ret;
+
+	ret = kstrtouint(buf, 2, &cdrom);
+	if (ret)
+		return ret;
+
+	curlun->cdrom = cdrom;
+
+	return count;
+}
+EXPORT_SYMBOL(fsg_store_cdrom);
+
+ssize_t fsg_store_removable(struct fsg_lun *curlun, const char *buf,
+			    size_t count)
+{
+	unsigned	removable;
+	int		ret;
+
+	ret = kstrtouint(buf, 2, &removable);
+	if (ret)
+		return ret;
+
+	curlun->removable = removable;
+
+	return count;
+}
+EXPORT_SYMBOL(fsg_store_removable);
+
 MODULE_LICENSE("GPL");
diff --git a/drivers/usb/gadget/storage_common.h b/drivers/usb/gadget/storage_common.h
index 16cf07bb9e75..e0f7aa69c7ed 100644
--- a/drivers/usb/gadget/storage_common.h
+++ b/drivers/usb/gadget/storage_common.h
@@ -214,10 +214,15 @@ ssize_t fsg_show_ro(struct fsg_lun *curlun, char *buf);
 ssize_t fsg_show_nofua(struct fsg_lun *curlun, char *buf);
 ssize_t fsg_show_file(struct fsg_lun *curlun, struct rw_semaphore *filesem,
 		      char *buf);
+ssize_t fsg_show_cdrom(struct fsg_lun *curlun, char *buf);
+ssize_t fsg_show_removable(struct fsg_lun *curlun, char *buf);
 ssize_t fsg_store_ro(struct fsg_lun *curlun, struct rw_semaphore *filesem,
 		     const char *buf, size_t count);
 ssize_t fsg_store_nofua(struct fsg_lun *curlun, const char *buf, size_t count);
 ssize_t fsg_store_file(struct fsg_lun *curlun, struct rw_semaphore *filesem,
 		       const char *buf, size_t count);
+ssize_t fsg_store_cdrom(struct fsg_lun *curlun, const char *buf, size_t count);
+ssize_t fsg_store_removable(struct fsg_lun *curlun, const char *buf,
+			    size_t count);
 
 #endif /* USB_STORAGE_COMMON_H */
-- 
cgit 


From ef0aa4b92cf10a7684135c61dc406398308b328f Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 9 Oct 2013 10:06:05 +0200
Subject: usb: gadget: f_mass_storage: add configfs support

From this commit on f_mass_storage is available through configfs.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 .../ABI/testing/configfs-usb-gadget-mass-storage   |  31 ++
 drivers/usb/gadget/Kconfig                         |  11 +
 drivers/usb/gadget/f_mass_storage.c                | 360 +++++++++++++++++++++
 drivers/usb/gadget/f_mass_storage.h                |  17 +
 4 files changed, 419 insertions(+)
 create mode 100644 Documentation/ABI/testing/configfs-usb-gadget-mass-storage

diff --git a/Documentation/ABI/testing/configfs-usb-gadget-mass-storage b/Documentation/ABI/testing/configfs-usb-gadget-mass-storage
new file mode 100644
index 000000000000..ad72a37ee9ff
--- /dev/null
+++ b/Documentation/ABI/testing/configfs-usb-gadget-mass-storage
@@ -0,0 +1,31 @@
+What:		/config/usb-gadget/gadget/functions/mass_storage.name
+Date:		Oct 2013
+KenelVersion:	3.13
+Description:
+		The attributes:
+
+		stall		- Set to permit function to halt bulk endpoints.
+				Disabled on some USB devices known not to work
+				correctly. You should set it to true.
+		num_buffers	- Number of pipeline buffers. Valid numbers
+				are 2..4. Available only if
+				CONFIG_USB_GADGET_DEBUG_FILES is set.
+
+What:		/config/usb-gadget/gadget/functions/mass_storage.name/lun.name
+Date:		Oct 2013
+KenelVersion:	3.13
+Description:
+		The attributes:
+
+		file		- The path to the backing file for the LUN.
+				Required if LUN is not marked as removable.
+		ro		- Flag specifying access to the LUN shall be
+				read-only. This is implied if CD-ROM emulation
+				is enabled as well as when it was impossible
+				to open "filename" in R/W mode.
+		removable	- Flag specifying that LUN shall be indicated as
+				being removable.
+		cdrom		- Flag specifying that LUN shall be reported as
+				being a CD-ROM.
+		nofua		- Flag specifying that FUA flag
+				in SCSI WRITE(10,12)
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 7d64e474c48b..bc5dea2f26e2 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -668,6 +668,17 @@ config USB_CONFIGFS_PHONET
 	help
 	  The Phonet protocol implementation for USB device.
 
+config USB_CONFIGFS_MASS_STORAGE
+	boolean "Mass storage"
+	depends on USB_CONFIGFS
+	select USB_U_MS
+	select USB_F_MASS_STORAGE
+	help
+	  The Mass Storage Gadget acts as a USB Mass Storage disk drive.
+	  As its storage repository it can use a regular file or a block
+	  device (in much the same way as the "loop" device driver),
+	  specified as a module parameter or sysfs option.
+
 config USB_ZERO
 	tristate "Gadget Zero (DEVELOPMENT)"
 	select USB_LIBCOMPOSITE
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index d80be5f0e6d2..00d3687594bb 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -220,6 +220,7 @@
 #include <linux/usb/composite.h>
 
 #include "gadget_chips.h"
+#include "configfs.h"
 
 
 /*------------------------------------------------------------------------*/
@@ -3295,6 +3296,342 @@ static int fsg_bind_config(struct usb_composite_dev *cdev,
 
 #else
 
+static inline struct fsg_lun_opts *to_fsg_lun_opts(struct config_item *item)
+{
+	return container_of(to_config_group(item), struct fsg_lun_opts, group);
+}
+
+static inline struct fsg_opts *to_fsg_opts(struct config_item *item)
+{
+	return container_of(to_config_group(item), struct fsg_opts,
+			    func_inst.group);
+}
+
+CONFIGFS_ATTR_STRUCT(fsg_lun_opts);
+CONFIGFS_ATTR_OPS(fsg_lun_opts);
+
+static void fsg_lun_attr_release(struct config_item *item)
+{
+	struct fsg_lun_opts *lun_opts;
+
+	lun_opts = to_fsg_lun_opts(item);
+	kfree(lun_opts);
+}
+
+static struct configfs_item_operations fsg_lun_item_ops = {
+	.release	= fsg_lun_attr_release,
+	.show_attribute = fsg_lun_opts_attr_show,
+	.store_attribute = fsg_lun_opts_attr_store,
+};
+
+static ssize_t fsg_lun_opts_file_show(struct fsg_lun_opts *opts, char *page)
+{
+	struct fsg_opts *fsg_opts;
+
+	fsg_opts = to_fsg_opts(opts->group.cg_item.ci_parent);
+
+	return fsg_show_file(opts->lun, &fsg_opts->common->filesem, page);
+}
+
+static ssize_t fsg_lun_opts_file_store(struct fsg_lun_opts *opts,
+				       const char *page, size_t len)
+{
+	struct fsg_opts *fsg_opts;
+
+	fsg_opts = to_fsg_opts(opts->group.cg_item.ci_parent);
+
+	return fsg_store_file(opts->lun, &fsg_opts->common->filesem, page, len);
+}
+
+static struct fsg_lun_opts_attribute fsg_lun_opts_file =
+	__CONFIGFS_ATTR(file, S_IRUGO | S_IWUSR, fsg_lun_opts_file_show,
+			fsg_lun_opts_file_store);
+
+static ssize_t fsg_lun_opts_ro_show(struct fsg_lun_opts *opts, char *page)
+{
+	return fsg_show_ro(opts->lun, page);
+}
+
+static ssize_t fsg_lun_opts_ro_store(struct fsg_lun_opts *opts,
+				       const char *page, size_t len)
+{
+	struct fsg_opts *fsg_opts;
+
+	fsg_opts = to_fsg_opts(opts->group.cg_item.ci_parent);
+
+	return fsg_store_ro(opts->lun, &fsg_opts->common->filesem, page, len);
+}
+
+static struct fsg_lun_opts_attribute fsg_lun_opts_ro =
+	__CONFIGFS_ATTR(ro, S_IRUGO | S_IWUSR, fsg_lun_opts_ro_show,
+			fsg_lun_opts_ro_store);
+
+static ssize_t fsg_lun_opts_removable_show(struct fsg_lun_opts *opts,
+					   char *page)
+{
+	return fsg_show_removable(opts->lun, page);
+}
+
+static ssize_t fsg_lun_opts_removable_store(struct fsg_lun_opts *opts,
+				       const char *page, size_t len)
+{
+	return fsg_store_removable(opts->lun, page, len);
+}
+
+static struct fsg_lun_opts_attribute fsg_lun_opts_removable =
+	__CONFIGFS_ATTR(removable, S_IRUGO | S_IWUSR,
+			fsg_lun_opts_removable_show,
+			fsg_lun_opts_removable_store);
+
+static ssize_t fsg_lun_opts_cdrom_show(struct fsg_lun_opts *opts, char *page)
+{
+	return fsg_show_cdrom(opts->lun, page);
+}
+
+static ssize_t fsg_lun_opts_cdrom_store(struct fsg_lun_opts *opts,
+				       const char *page, size_t len)
+{
+	return fsg_store_cdrom(opts->lun, page, len);
+}
+
+static struct fsg_lun_opts_attribute fsg_lun_opts_cdrom =
+	__CONFIGFS_ATTR(cdrom, S_IRUGO | S_IWUSR, fsg_lun_opts_cdrom_show,
+			fsg_lun_opts_cdrom_store);
+
+static ssize_t fsg_lun_opts_nofua_show(struct fsg_lun_opts *opts, char *page)
+{
+	return fsg_show_nofua(opts->lun, page);
+}
+
+static ssize_t fsg_lun_opts_nofua_store(struct fsg_lun_opts *opts,
+				       const char *page, size_t len)
+{
+	return fsg_store_nofua(opts->lun, page, len);
+}
+
+static struct fsg_lun_opts_attribute fsg_lun_opts_nofua =
+	__CONFIGFS_ATTR(nofua, S_IRUGO | S_IWUSR, fsg_lun_opts_nofua_show,
+			fsg_lun_opts_nofua_store);
+
+static struct configfs_attribute *fsg_lun_attrs[] = {
+	&fsg_lun_opts_file.attr,
+	&fsg_lun_opts_ro.attr,
+	&fsg_lun_opts_removable.attr,
+	&fsg_lun_opts_cdrom.attr,
+	&fsg_lun_opts_nofua.attr,
+	NULL,
+};
+
+static struct config_item_type fsg_lun_type = {
+	.ct_item_ops	= &fsg_lun_item_ops,
+	.ct_attrs	= fsg_lun_attrs,
+	.ct_owner	= THIS_MODULE,
+};
+
+#define MAX_NAME_LEN	40
+
+static struct config_group *fsg_lun_make(struct config_group *group,
+					 const char *name)
+{
+	struct fsg_lun_opts *opts;
+	struct fsg_opts *fsg_opts;
+	struct fsg_lun_config config;
+	char *num_str;
+	u8 num;
+	int ret;
+
+	num_str = strchr(name, '.');
+	if (!num_str) {
+		pr_err("Unable to locate . in LUN.NUMBER\n");
+		return ERR_PTR(-EINVAL);
+	}
+	num_str++;
+
+	ret = kstrtou8(num_str, 0, &num);
+	if (ret)
+		return ERR_PTR(ret);
+
+	fsg_opts = to_fsg_opts(&group->cg_item);
+	if (num >= FSG_MAX_LUNS)
+		return ERR_PTR(-ENODEV);
+	mutex_lock(&fsg_opts->lock);
+	if (fsg_opts->refcnt || fsg_opts->common->luns[num]) {
+		ret = -EBUSY;
+		goto out;
+	}
+
+	opts = kzalloc(sizeof(*opts), GFP_KERNEL);
+	if (!opts) {
+		ret = -ENOMEM;
+		goto out;
+	}
+
+	memset(&config, 0, sizeof(config));
+	config.removable = true;
+
+
+	ret = fsg_common_create_lun(fsg_opts->common, &config, num, name,
+				    (const char **)&group->cg_item.ci_name);
+	if (ret) {
+		kfree(opts);
+		goto out;
+	}
+	opts->lun = fsg_opts->common->luns[num];
+	opts->lun_id = num;
+	mutex_unlock(&fsg_opts->lock);
+
+	config_group_init_type_name(&opts->group, name, &fsg_lun_type);
+
+	return &opts->group;
+out:
+	mutex_unlock(&fsg_opts->lock);
+	return ERR_PTR(ret);
+}
+
+static void fsg_lun_drop(struct config_group *group, struct config_item *item)
+{
+	struct fsg_lun_opts *lun_opts;
+	struct fsg_opts *fsg_opts;
+
+	lun_opts = to_fsg_lun_opts(item);
+	fsg_opts = to_fsg_opts(&group->cg_item);
+
+	mutex_lock(&fsg_opts->lock);
+	if (fsg_opts->refcnt) {
+		struct config_item *gadget;
+
+		gadget = group->cg_item.ci_parent->ci_parent;
+		unregister_gadget_item(gadget);
+	}
+
+	fsg_common_remove_lun(lun_opts->lun, fsg_opts->common->sysfs);
+	fsg_opts->common->luns[lun_opts->lun_id] = NULL;
+	lun_opts->lun_id = 0;
+	mutex_unlock(&fsg_opts->lock);
+
+	config_item_put(item);
+}
+
+CONFIGFS_ATTR_STRUCT(fsg_opts);
+CONFIGFS_ATTR_OPS(fsg_opts);
+
+static void fsg_attr_release(struct config_item *item)
+{
+	struct fsg_opts *opts = to_fsg_opts(item);
+
+	usb_put_function_instance(&opts->func_inst);
+}
+
+static struct configfs_item_operations fsg_item_ops = {
+	.release	= fsg_attr_release,
+	.show_attribute = fsg_opts_attr_show,
+	.store_attribute = fsg_opts_attr_store,
+};
+
+static ssize_t fsg_opts_stall_show(struct fsg_opts *opts, char *page)
+{
+	int result;
+
+	mutex_lock(&opts->lock);
+	result = sprintf(page, "%d", opts->common->can_stall);
+	mutex_unlock(&opts->lock);
+
+	return result;
+}
+
+static ssize_t fsg_opts_stall_store(struct fsg_opts *opts, const char *page,
+				    size_t len)
+{
+	int ret;
+	u8 num;
+
+	mutex_lock(&opts->lock);
+	if (opts->refcnt) {
+		ret = -EBUSY;
+		goto end;
+	}
+	ret = kstrtou8(page, 0, &num);
+	if (ret)
+		goto end;
+
+	opts->common->can_stall = num != 0;
+	ret = len;
+
+end:
+	mutex_unlock(&opts->lock);
+	return ret;
+}
+
+static struct fsg_opts_attribute fsg_opts_stall =
+	__CONFIGFS_ATTR(stall, S_IRUGO | S_IWUSR, fsg_opts_stall_show,
+			fsg_opts_stall_store);
+
+#ifdef CONFIG_USB_GADGET_DEBUG_FILES
+static ssize_t fsg_opts_num_buffers_show(struct fsg_opts *opts, char *page)
+{
+	int result;
+
+	mutex_lock(&opts->lock);
+	result = sprintf(page, "%d", opts->common->fsg_num_buffers);
+	mutex_unlock(&opts->lock);
+
+	return result;
+}
+
+static ssize_t fsg_opts_num_buffers_store(struct fsg_opts *opts,
+					  const char *page, size_t len)
+{
+	int ret;
+	u8 num;
+
+	mutex_lock(&opts->lock);
+	if (opts->refcnt) {
+		ret = -EBUSY;
+		goto end;
+	}
+	ret = kstrtou8(page, 0, &num);
+	if (ret)
+		goto end;
+
+	ret = fsg_num_buffers_validate(num);
+	if (ret)
+		goto end;
+
+	fsg_common_set_num_buffers(opts->common, num);
+	ret = len;
+
+end:
+	mutex_unlock(&opts->lock);
+	return ret;
+}
+
+static struct fsg_opts_attribute fsg_opts_num_buffers =
+	__CONFIGFS_ATTR(num_buffers, S_IRUGO | S_IWUSR,
+			fsg_opts_num_buffers_show,
+			fsg_opts_num_buffers_store);
+
+#endif
+
+static struct configfs_attribute *fsg_attrs[] = {
+	&fsg_opts_stall.attr,
+#ifdef CONFIG_USB_GADGET_DEBUG_FILES
+	&fsg_opts_num_buffers.attr,
+#endif
+	NULL,
+};
+
+static struct configfs_group_operations fsg_group_ops = {
+	.make_group	= fsg_lun_make,
+	.drop_item	= fsg_lun_drop,
+};
+
+static struct config_item_type fsg_func_type = {
+	.ct_item_ops	= &fsg_item_ops,
+	.ct_group_ops	= &fsg_group_ops,
+	.ct_attrs	= fsg_attrs,
+	.ct_owner	= THIS_MODULE,
+};
+
 static void fsg_free_inst(struct usb_function_instance *fi)
 {
 	struct fsg_opts *opts;
@@ -3307,11 +3644,13 @@ static void fsg_free_inst(struct usb_function_instance *fi)
 static struct usb_function_instance *fsg_alloc_inst(void)
 {
 	struct fsg_opts *opts;
+	struct fsg_lun_config config;
 	int rc;
 
 	opts = kzalloc(sizeof(*opts), GFP_KERNEL);
 	if (!opts)
 		return ERR_PTR(-ENOMEM);
+	mutex_init(&opts->lock);
 	opts->func_inst.free_func_inst = fsg_free_inst;
 	opts->common = fsg_common_setup(opts->common, false);
 	if (IS_ERR(opts->common)) {
@@ -3329,6 +3668,18 @@ static struct usb_function_instance *fsg_alloc_inst(void)
 
 	pr_info(FSG_DRIVER_DESC ", version: " FSG_DRIVER_VERSION "\n");
 
+	memset(&config, 0, sizeof(config));
+	config.removable = true;
+	rc = fsg_common_create_lun(opts->common, &config, 0, "lun.0",
+			(const char **)&opts->func_inst.group.cg_item.ci_name);
+	opts->lun0.lun = opts->common->luns[0];
+	opts->lun0.lun_id = 0;
+	config_group_init_type_name(&opts->lun0.group, "lun.0", &fsg_lun_type);
+	opts->default_groups[0] = &opts->lun0.group;
+	opts->func_inst.group.default_groups = opts->default_groups;
+
+	config_group_init_type_name(&opts->func_inst.group, "", &fsg_func_type);
+
 	return &opts->func_inst;
 
 release_luns:
@@ -3341,8 +3692,14 @@ release_opts:
 static void fsg_free(struct usb_function *f)
 {
 	struct fsg_dev *fsg;
+	struct fsg_opts *opts;
 
 	fsg = container_of(f, struct fsg_dev, function);
+	opts = container_of(f->fi, struct fsg_opts, func_inst);
+
+	mutex_lock(&opts->lock);
+	opts->refcnt--;
+	mutex_unlock(&opts->lock);
 
 	kfree(fsg);
 }
@@ -3357,6 +3714,9 @@ static struct usb_function *fsg_alloc(struct usb_function_instance *fi)
 	if (unlikely(!fsg))
 		return ERR_PTR(-ENOMEM);
 
+	mutex_lock(&opts->lock);
+	opts->refcnt++;
+	mutex_unlock(&opts->lock);
 	fsg->function.name	= FSG_DRIVER_DESC;
 	fsg->function.bind	= fsg_bind;
 	fsg->function.unbind	= fsg_unbind;
diff --git a/drivers/usb/gadget/f_mass_storage.h b/drivers/usb/gadget/f_mass_storage.h
index b53cf8c9189e..7d421d2ac3c9 100644
--- a/drivers/usb/gadget/f_mass_storage.h
+++ b/drivers/usb/gadget/f_mass_storage.h
@@ -71,10 +71,27 @@ struct fsg_operations {
 	int (*thread_exits)(struct fsg_common *common);
 };
 
+struct fsg_lun_opts {
+	struct config_group group;
+	struct fsg_lun *lun;
+	int lun_id;
+};
+
 struct fsg_opts {
 	struct fsg_common *common;
 	struct usb_function_instance func_inst;
+	struct fsg_lun_opts lun0;
+	struct config_group *default_groups[2];
 	bool no_configfs; /* for legacy gadgets */
+
+	/*
+	 * Read/write access to configfs attributes is handled by configfs.
+	 *
+	 * This is to protect the data from concurrent access by read/write
+	 * and create symlink/remove symlink.
+	 */
+	struct mutex			lock;
+	int				refcnt;
 };
 
 struct fsg_lun_config {
-- 
cgit 


From e6c661ef18177f2f1ce32210140f8497851d9388 Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 9 Oct 2013 10:07:29 +0200
Subject: usb: gadget: acm_ms: convert to new interface of f_mass_storage

Convert the legacy acm_ms gadget to use the new function interface
of f_mass_storage, so that later the compatibility layer in
f_mass_storage can be removed.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/Kconfig  |   1 +
 drivers/usb/gadget/acm_ms.c | 113 +++++++++++++++++++++++++++++---------------
 2 files changed, 75 insertions(+), 39 deletions(-)

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index bc5dea2f26e2..886db6a7d4d9 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -1021,6 +1021,7 @@ config USB_G_ACM_MS
 	select USB_U_SERIAL
 	select USB_F_ACM
 	select USB_U_MS
+	select USB_F_MASS_STORAGE
 	help
 	  This driver provides two functions in one configuration:
 	  a mass storage, and a CDC ACM (serial port) link.
diff --git a/drivers/usb/gadget/acm_ms.c b/drivers/usb/gadget/acm_ms.c
index 31aae8fce426..7bfa134fe0e3 100644
--- a/drivers/usb/gadget/acm_ms.c
+++ b/drivers/usb/gadget/acm_ms.c
@@ -31,17 +31,7 @@
 #define ACM_MS_VENDOR_NUM	0x1d6b	/* Linux Foundation */
 #define ACM_MS_PRODUCT_NUM	0x0106	/* Composite Gadget: ACM + MS*/
 
-/*-------------------------------------------------------------------------*/
-
-/*
- * Kbuild is not very cooperative with respect to linking separately
- * compiled library objects into one module.  So for now we won't use
- * separate compilation ... ensuring init/exit sections work to shrink
- * the runtime footprint, and giving us at least some parts of what
- * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
- */
-#define USB_FMS_INCLUDED
-#include "f_mass_storage.c"
+#include "f_mass_storage.h"
 
 /*-------------------------------------------------------------------------*/
 USB_GADGET_COMPOSITE_OPTIONS();
@@ -121,16 +111,19 @@ static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS;
 
 FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data);
 
-static struct fsg_common fsg_common;
-
 /*-------------------------------------------------------------------------*/
 static struct usb_function *f_acm;
 static struct usb_function_instance *f_acm_inst;
+
+static struct usb_function_instance *fi_msg;
+static struct usb_function *f_msg;
+
 /*
  * We _always_ have both ACM and mass storage functions.
  */
 static int __init acm_ms_do_config(struct usb_configuration *c)
 {
+	struct fsg_opts *opts;
 	int	status;
 
 	if (gadget_is_otg(c->cdev->gadget)) {
@@ -138,31 +131,37 @@ static int __init acm_ms_do_config(struct usb_configuration *c)
 		c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
 	}
 
-	f_acm_inst = usb_get_function_instance("acm");
-	if (IS_ERR(f_acm_inst))
-		return PTR_ERR(f_acm_inst);
+	opts = fsg_opts_from_func_inst(fi_msg);
 
 	f_acm = usb_get_function(f_acm_inst);
-	if (IS_ERR(f_acm)) {
-		status = PTR_ERR(f_acm);
-		goto err_func;
+	if (IS_ERR(f_acm))
+		return PTR_ERR(f_acm);
+
+	f_msg = usb_get_function(fi_msg);
+	if (IS_ERR(f_msg)) {
+		status = PTR_ERR(f_msg);
+		goto put_acm;
 	}
 
 	status = usb_add_function(c, f_acm);
 	if (status < 0)
-		goto err_conf;
+		goto put_msg;
 
-	status = fsg_bind_config(c->cdev, c, &fsg_common);
-	if (status < 0)
-		goto err_fsg;
+	status = fsg_common_run_thread(opts->common);
+	if (status)
+		goto remove_acm;
+
+	status = usb_add_function(c, f_msg);
+	if (status)
+		goto remove_acm;
 
 	return 0;
-err_fsg:
+remove_acm:
 	usb_remove_function(c, f_acm);
-err_conf:
+put_msg:
+	usb_put_function(f_msg);
+put_acm:
 	usb_put_function(f_acm);
-err_func:
-	usb_put_function_instance(f_acm_inst);
 	return status;
 }
 
@@ -178,46 +177,82 @@ static struct usb_configuration acm_ms_config_driver = {
 static int __init acm_ms_bind(struct usb_composite_dev *cdev)
 {
 	struct usb_gadget	*gadget = cdev->gadget;
+	struct fsg_opts		*opts;
+	struct fsg_config	config;
 	int			status;
-	void			*retp;
 
-	/* set up mass storage function */
-	retp = fsg_common_from_params(&fsg_common, cdev, &fsg_mod_data,
-				      fsg_num_buffers);
-	if (IS_ERR(retp)) {
-		status = PTR_ERR(retp);
-		return PTR_ERR(retp);
+	f_acm_inst = usb_get_function_instance("acm");
+	if (IS_ERR(f_acm_inst))
+		return PTR_ERR(f_acm_inst);
+
+	fi_msg = usb_get_function_instance("mass_storage");
+	if (IS_ERR(fi_msg)) {
+		status = PTR_ERR(fi_msg);
+		goto fail_get_msg;
 	}
 
+	/* set up mass storage function */
+	fsg_config_from_params(&config, &fsg_mod_data, fsg_num_buffers);
+	opts = fsg_opts_from_func_inst(fi_msg);
+
+	opts->no_configfs = true;
+	status = fsg_common_set_num_buffers(opts->common, fsg_num_buffers);
+	if (status)
+		goto fail;
+
+	status = fsg_common_set_nluns(opts->common, config.nluns);
+	if (status)
+		goto fail_set_nluns;
+
+	status = fsg_common_set_cdev(opts->common, cdev, config.can_stall);
+	if (status)
+		goto fail_set_cdev;
+
+	fsg_common_set_sysfs(opts->common, true);
+	status = fsg_common_create_luns(opts->common, &config);
+	if (status)
+		goto fail_set_cdev;
+
+	fsg_common_set_inquiry_string(opts->common, config.vendor_name,
+				      config.product_name);
 	/*
 	 * Allocate string descriptor numbers ... note that string
 	 * contents can be overridden by the composite_dev glue.
 	 */
 	status = usb_string_ids_tab(cdev, strings_dev);
 	if (status < 0)
-		goto fail1;
+		goto fail_string_ids;
 	device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
 	device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
 
 	/* register our configuration */
 	status = usb_add_config(cdev, &acm_ms_config_driver, acm_ms_do_config);
 	if (status < 0)
-		goto fail1;
+		goto fail_string_ids;
 
 	usb_composite_overwrite_options(cdev, &coverwrite);
 	dev_info(&gadget->dev, "%s, version: " DRIVER_VERSION "\n",
 			DRIVER_DESC);
-	fsg_common_put(&fsg_common);
 	return 0;
 
 	/* error recovery */
-fail1:
-	fsg_common_put(&fsg_common);
+fail_string_ids:
+	fsg_common_remove_luns(opts->common);
+fail_set_cdev:
+	fsg_common_free_luns(opts->common);
+fail_set_nluns:
+	fsg_common_free_buffers(opts->common);
+fail:
+	usb_put_function_instance(fi_msg);
+fail_get_msg:
+	usb_put_function_instance(f_acm_inst);
 	return status;
 }
 
 static int __exit acm_ms_unbind(struct usb_composite_dev *cdev)
 {
+	usb_put_function(f_msg);
+	usb_put_function_instance(fi_msg);
 	usb_put_function(f_acm);
 	usb_put_function_instance(f_acm_inst);
 	return 0;
-- 
cgit 


From 7388901528411cbda3f5e0d121ae3797f4397ded Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 9 Oct 2013 10:08:25 +0200
Subject: usb: gadget: multi: convert to new interface of f_ecm

Convert the legacy multi gadget to the new interface of f_ecm,
so that later the compatibility layer in f_ecm can be removed.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/Kconfig |  1 +
 drivers/usb/gadget/multi.c | 68 ++++++++++++++++++++++++++++++++++++++++------
 2 files changed, 61 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 886db6a7d4d9..92a896653cd6 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -1070,6 +1070,7 @@ config USB_G_MULTI_CDC
 	bool "CDC Ethernet + CDC Serial + Storage configuration"
 	depends on USB_G_MULTI
 	default n
+	select USB_F_ECM
 	help
 	  This option enables a configuration with CDC Ethernet (ECM), CDC
 	  Serial and Mass Storage functions available in the Multifunction
diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c
index 42a5bed75388..7dd554481dd4 100644
--- a/drivers/usb/gadget/multi.c
+++ b/drivers/usb/gadget/multi.c
@@ -15,6 +15,7 @@
 
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/netdevice.h>
 
 #include "u_serial.h"
 #if defined USB_ETH_RNDIS
@@ -44,8 +45,7 @@ MODULE_LICENSE("GPL");
 #define USB_FMS_INCLUDED
 #include "f_mass_storage.c"
 
-#define USBF_ECM_INCLUDED
-#include "f_ecm.c"
+#include "u_ecm.h"
 #ifdef USB_ETH_RNDIS
 #  define USB_FRNDIS_INCLUDED
 #  include "f_rndis.c"
@@ -151,14 +151,14 @@ FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data);
 
 static struct fsg_common fsg_common;
 
-static u8 host_mac[ETH_ALEN];
-
 static struct usb_function_instance *fi_acm;
 static struct eth_dev *the_dev;
 
 /********** RNDIS **********/
 
 #ifdef USB_ETH_RNDIS
+static u8 host_mac[ETH_ALEN];
+
 static struct usb_function *f_acm_rndis;
 
 static __init int rndis_do_config(struct usb_configuration *c)
@@ -220,7 +220,9 @@ static __ref int rndis_config_register(struct usb_composite_dev *cdev)
 /********** CDC ECM **********/
 
 #ifdef CONFIG_USB_G_MULTI_CDC
+static struct usb_function_instance *fi_ecm;
 static struct usb_function *f_acm_multi;
+static struct usb_function *f_ecm;
 
 static __init int cdc_do_config(struct usb_configuration *c)
 {
@@ -231,14 +233,20 @@ static __init int cdc_do_config(struct usb_configuration *c)
 		c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
 	}
 
-	ret = ecm_bind_config(c, host_mac, the_dev);
+	f_ecm = usb_get_function(fi_ecm);
+	if (IS_ERR(f_ecm))
+		return PTR_ERR(f_ecm);
+
+	ret = usb_add_function(c, f_ecm);
 	if (ret < 0)
-		return ret;
+		goto err_func_ecm;
 
 	/* implicit port_num is zero */
 	f_acm_multi = usb_get_function(fi_acm);
-	if (IS_ERR(f_acm_multi))
-		return PTR_ERR(f_acm_multi);
+	if (IS_ERR(f_acm_multi)) {
+		ret = PTR_ERR(f_acm_multi);
+		goto err_func_acm;
+	}
 
 	ret = usb_add_function(c, f_acm_multi);
 	if (ret)
@@ -253,6 +261,10 @@ err_fsg:
 	usb_remove_function(c, f_acm_multi);
 err_conf:
 	usb_put_function(f_acm_multi);
+err_func_acm:
+	usb_remove_function(c, f_ecm);
+err_func_ecm:
+	usb_put_function(f_ecm);
 	return ret;
 }
 
@@ -285,6 +297,9 @@ static __ref int cdc_config_register(struct usb_composite_dev *cdev)
 static int __ref multi_bind(struct usb_composite_dev *cdev)
 {
 	struct usb_gadget *gadget = cdev->gadget;
+#ifdef CONFIG_USB_G_MULTI_CDC
+	struct f_ecm_opts *ecm_opts;
+#endif
 	int status;
 
 	if (!can_support_ecm(cdev->gadget)) {
@@ -293,11 +308,39 @@ static int __ref multi_bind(struct usb_composite_dev *cdev)
 		return -EINVAL;
 	}
 
+#ifdef CONFIG_USB_G_MULTI_CDC
+	fi_ecm = usb_get_function_instance("ecm");
+	if (IS_ERR(fi_ecm))
+		return PTR_ERR(fi_ecm);
+
+	ecm_opts = container_of(fi_ecm, struct f_ecm_opts, func_inst);
+
+	gether_set_qmult(ecm_opts->net, qmult);
+	if (!gether_set_host_addr(ecm_opts->net, host_addr))
+		pr_info("using host ethernet address: %s", host_addr);
+	if (!gether_set_dev_addr(ecm_opts->net, dev_addr))
+		pr_info("using self ethernet address: %s", dev_addr);
+
+	the_dev = netdev_priv(ecm_opts->net);
+
+#elif defined USB_ETH_RNDIS
+
 	/* set up network link layer */
 	the_dev = gether_setup(cdev->gadget, dev_addr, host_addr, host_mac,
 			       qmult);
 	if (IS_ERR(the_dev))
 		return PTR_ERR(the_dev);
+#endif
+
+#if (defined CONFIG_USB_G_MULTI_CDC && defined USB_ETH_RNDIS)
+	gether_set_gadget(ecm_opts->net, cdev->gadget);
+	status = gether_register_netdev(ecm_opts->net);
+	if (status)
+		goto fail0;
+	ecm_opts->bound = true;
+
+	gether_get_host_addr_u8(ecm_opts->net, host_mac);
+#endif
 
 	/* set up serial link layer */
 	fi_acm = usb_get_function_instance("acm");
@@ -345,7 +388,11 @@ fail2:
 fail1:
 	usb_put_function_instance(fi_acm);
 fail0:
+#ifdef CONFIG_USB_G_MULTI_CDC
+	usb_put_function_instance(fi_ecm);
+#else
 	gether_cleanup(the_dev);
+#endif
 	return status;
 }
 
@@ -358,7 +405,12 @@ static int __exit multi_unbind(struct usb_composite_dev *cdev)
 	usb_put_function(f_acm_rndis);
 #endif
 	usb_put_function_instance(fi_acm);
+#ifdef CONFIG_USB_G_MULTI_CDC
+	usb_put_function(f_ecm);
+	usb_put_function_instance(fi_ecm);
+#else
 	gether_cleanup(the_dev);
+#endif
 	return 0;
 }
 
-- 
cgit 


From 4d1a8f68b42d2a726e36bfe2f891496b4c6bdbbb Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 9 Oct 2013 10:08:26 +0200
Subject: usb: gadget: multi: convert to new interface of f_rndis

Convert the legacy multi gadget to the new interface of f_rndis,
so that later the compatibility layer in f_rndis can be removed.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/Kconfig |  3 +-
 drivers/usb/gadget/multi.c | 73 +++++++++++++++++++++++++++++++---------------
 2 files changed, 52 insertions(+), 24 deletions(-)

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 92a896653cd6..bbcc313f0317 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -1036,7 +1036,6 @@ config USB_G_MULTI
 	select USB_LIBCOMPOSITE
 	select USB_U_SERIAL
 	select USB_U_ETHER
-	select USB_U_RNDIS
 	select USB_F_ACM
 	select USB_U_MS
 	help
@@ -1057,6 +1056,8 @@ config USB_G_MULTI
 config USB_G_MULTI_RNDIS
 	bool "RNDIS + CDC Serial + Storage configuration"
 	depends on USB_G_MULTI
+	select USB_U_RNDIS
+	select USB_F_RNDIS
 	default y
 	help
 	  This option enables a configuration with RNDIS, CDC Serial and
diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c
index 7dd554481dd4..fceef0fc0860 100644
--- a/drivers/usb/gadget/multi.c
+++ b/drivers/usb/gadget/multi.c
@@ -47,8 +47,7 @@ MODULE_LICENSE("GPL");
 
 #include "u_ecm.h"
 #ifdef USB_ETH_RNDIS
-#  define USB_FRNDIS_INCLUDED
-#  include "f_rndis.c"
+#  include "u_rndis.h"
 #  include "rndis.h"
 #endif
 #include "u_ether.h"
@@ -152,14 +151,13 @@ FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data);
 static struct fsg_common fsg_common;
 
 static struct usb_function_instance *fi_acm;
-static struct eth_dev *the_dev;
 
 /********** RNDIS **********/
 
 #ifdef USB_ETH_RNDIS
-static u8 host_mac[ETH_ALEN];
-
+static struct usb_function_instance *fi_rndis;
 static struct usb_function *f_acm_rndis;
+static struct usb_function *f_rndis;
 
 static __init int rndis_do_config(struct usb_configuration *c)
 {
@@ -170,13 +168,19 @@ static __init int rndis_do_config(struct usb_configuration *c)
 		c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
 	}
 
-	ret = rndis_bind_config(c, host_mac, the_dev);
+	f_rndis = usb_get_function(fi_rndis);
+	if (IS_ERR(f_rndis))
+		return PTR_ERR(f_rndis);
+
+	ret = usb_add_function(c, f_rndis);
 	if (ret < 0)
-		return ret;
+		goto err_func_rndis;
 
 	f_acm_rndis = usb_get_function(fi_acm);
-	if (IS_ERR(f_acm_rndis))
-		return PTR_ERR(f_acm_rndis);
+	if (IS_ERR(f_acm_rndis)) {
+		ret = PTR_ERR(f_acm_rndis);
+		goto err_func_acm;
+	}
 
 	ret = usb_add_function(c, f_acm_rndis);
 	if (ret)
@@ -191,6 +195,10 @@ err_fsg:
 	usb_remove_function(c, f_acm_rndis);
 err_conf:
 	usb_put_function(f_acm_rndis);
+err_func_acm:
+	usb_remove_function(c, f_rndis);
+err_func_rndis:
+	usb_put_function(f_rndis);
 	return ret;
 }
 
@@ -299,12 +307,15 @@ static int __ref multi_bind(struct usb_composite_dev *cdev)
 	struct usb_gadget *gadget = cdev->gadget;
 #ifdef CONFIG_USB_G_MULTI_CDC
 	struct f_ecm_opts *ecm_opts;
+#endif
+#ifdef USB_ETH_RNDIS
+	struct f_rndis_opts *rndis_opts;
 #endif
 	int status;
 
 	if (!can_support_ecm(cdev->gadget)) {
 		dev_err(&gadget->dev, "controller '%s' not usable\n",
-		        gadget->name);
+			gadget->name);
 		return -EINVAL;
 	}
 
@@ -320,26 +331,38 @@ static int __ref multi_bind(struct usb_composite_dev *cdev)
 		pr_info("using host ethernet address: %s", host_addr);
 	if (!gether_set_dev_addr(ecm_opts->net, dev_addr))
 		pr_info("using self ethernet address: %s", dev_addr);
+#endif
 
-	the_dev = netdev_priv(ecm_opts->net);
+#ifdef USB_ETH_RNDIS
+	fi_rndis = usb_get_function_instance("rndis");
+	if (IS_ERR(fi_rndis)) {
+		status = PTR_ERR(fi_rndis);
+		goto fail;
+	}
 
-#elif defined USB_ETH_RNDIS
+	rndis_opts = container_of(fi_rndis, struct f_rndis_opts, func_inst);
 
-	/* set up network link layer */
-	the_dev = gether_setup(cdev->gadget, dev_addr, host_addr, host_mac,
-			       qmult);
-	if (IS_ERR(the_dev))
-		return PTR_ERR(the_dev);
+	gether_set_qmult(rndis_opts->net, qmult);
+	if (!gether_set_host_addr(rndis_opts->net, host_addr))
+		pr_info("using host ethernet address: %s", host_addr);
+	if (!gether_set_dev_addr(rndis_opts->net, dev_addr))
+		pr_info("using self ethernet address: %s", dev_addr);
 #endif
 
 #if (defined CONFIG_USB_G_MULTI_CDC && defined USB_ETH_RNDIS)
+	/*
+	 * If both ecm and rndis are selected then:
+	 *	1) rndis borrows the net interface from ecm
+	 *	2) since the interface is shared it must not be bound
+	 *	twice - in ecm's _and_ rndis' binds, so do it here.
+	 */
 	gether_set_gadget(ecm_opts->net, cdev->gadget);
 	status = gether_register_netdev(ecm_opts->net);
 	if (status)
 		goto fail0;
-	ecm_opts->bound = true;
 
-	gether_get_host_addr_u8(ecm_opts->net, host_mac);
+	rndis_borrow_net(fi_rndis, ecm_opts->net);
+	ecm_opts->bound = true;
 #endif
 
 	/* set up serial link layer */
@@ -388,10 +411,12 @@ fail2:
 fail1:
 	usb_put_function_instance(fi_acm);
 fail0:
+#ifdef USB_ETH_RNDIS
+	usb_put_function_instance(fi_rndis);
+fail:
+#endif
 #ifdef CONFIG_USB_G_MULTI_CDC
 	usb_put_function_instance(fi_ecm);
-#else
-	gether_cleanup(the_dev);
 #endif
 	return status;
 }
@@ -405,11 +430,13 @@ static int __exit multi_unbind(struct usb_composite_dev *cdev)
 	usb_put_function(f_acm_rndis);
 #endif
 	usb_put_function_instance(fi_acm);
+#ifdef USB_ETH_RNDIS
+	usb_put_function(f_rndis);
+	usb_put_function_instance(fi_rndis);
+#endif
 #ifdef CONFIG_USB_G_MULTI_CDC
 	usb_put_function(f_ecm);
 	usb_put_function_instance(fi_ecm);
-#else
-	gether_cleanup(the_dev);
 #endif
 	return 0;
 }
-- 
cgit 


From 1bcce939478f894b46a592aed28ccc9caaf1a52a Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 9 Oct 2013 10:08:27 +0200
Subject: usb: gadget: multi: convert to new interface of f_mass_storage

Convert the legacy multi gadget to the new interface of f_mass_storage,
so that later the compatibility layer in f_mass_storage can be removed.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/Kconfig |   1 +
 drivers/usb/gadget/multi.c | 112 +++++++++++++++++++++++++++++++++------------
 2 files changed, 83 insertions(+), 30 deletions(-)

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index bbcc313f0317..4b0c456f9d63 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -1038,6 +1038,7 @@ config USB_G_MULTI
 	select USB_U_ETHER
 	select USB_F_ACM
 	select USB_U_MS
+	select USB_F_MASS_STORAGE
 	help
 	  The Multifunction Composite Gadget provides Ethernet (RNDIS
 	  and/or CDC Ethernet), mass storage and ACM serial link
diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c
index fceef0fc0860..4fdaa54a2a2a 100644
--- a/drivers/usb/gadget/multi.c
+++ b/drivers/usb/gadget/multi.c
@@ -33,17 +33,7 @@ MODULE_AUTHOR("Michal Nazarewicz");
 MODULE_LICENSE("GPL");
 
 
-/***************************** All the files... *****************************/
-
-/*
- * kbuild is not very cooperative with respect to linking separately
- * compiled library objects into one module.  So for now we won't use
- * separate compilation ... ensuring init/exit sections work to shrink
- * the runtime footprint, and giving us at least some parts of what
- * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
- */
-#define USB_FMS_INCLUDED
-#include "f_mass_storage.c"
+#include "f_mass_storage.h"
 
 #include "u_ecm.h"
 #ifdef USB_ETH_RNDIS
@@ -148,9 +138,8 @@ static unsigned int fsg_num_buffers = CONFIG_USB_GADGET_STORAGE_NUM_BUFFERS;
 
 FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data);
 
-static struct fsg_common fsg_common;
-
 static struct usb_function_instance *fi_acm;
+static struct usb_function_instance *fi_msg;
 
 /********** RNDIS **********/
 
@@ -158,9 +147,11 @@ static struct usb_function_instance *fi_acm;
 static struct usb_function_instance *fi_rndis;
 static struct usb_function *f_acm_rndis;
 static struct usb_function *f_rndis;
+static struct usb_function *f_msg_rndis;
 
 static __init int rndis_do_config(struct usb_configuration *c)
 {
+	struct fsg_opts *fsg_opts;
 	int ret;
 
 	if (gadget_is_otg(c->cdev->gadget)) {
@@ -186,11 +177,24 @@ static __init int rndis_do_config(struct usb_configuration *c)
 	if (ret)
 		goto err_conf;
 
-	ret = fsg_bind_config(c->cdev, c, &fsg_common);
-	if (ret < 0)
+	f_msg_rndis = usb_get_function(fi_msg);
+	if (IS_ERR(f_msg_rndis)) {
+		ret = PTR_ERR(f_msg_rndis);
 		goto err_fsg;
+	}
+
+	fsg_opts = fsg_opts_from_func_inst(fi_msg);
+	ret = fsg_common_run_thread(fsg_opts->common);
+	if (ret)
+		goto err_run;
+
+	ret = usb_add_function(c, f_msg_rndis);
+	if (ret)
+		goto err_run;
 
 	return 0;
+err_run:
+	usb_put_function(f_msg_rndis);
 err_fsg:
 	usb_remove_function(c, f_acm_rndis);
 err_conf:
@@ -231,9 +235,11 @@ static __ref int rndis_config_register(struct usb_composite_dev *cdev)
 static struct usb_function_instance *fi_ecm;
 static struct usb_function *f_acm_multi;
 static struct usb_function *f_ecm;
+static struct usb_function *f_msg_multi;
 
 static __init int cdc_do_config(struct usb_configuration *c)
 {
+	struct fsg_opts *fsg_opts;
 	int ret;
 
 	if (gadget_is_otg(c->cdev->gadget)) {
@@ -260,11 +266,24 @@ static __init int cdc_do_config(struct usb_configuration *c)
 	if (ret)
 		goto err_conf;
 
-	ret = fsg_bind_config(c->cdev, c, &fsg_common);
-	if (ret < 0)
+	f_msg_multi = usb_get_function(fi_msg);
+	if (IS_ERR(f_msg_multi)) {
+		ret = PTR_ERR(f_msg_multi);
 		goto err_fsg;
+	}
+
+	fsg_opts = fsg_opts_from_func_inst(fi_msg);
+	ret = fsg_common_run_thread(fsg_opts->common);
+	if (ret)
+		goto err_run;
+
+	ret = usb_add_function(c, f_msg_multi);
+	if (ret)
+		goto err_run;
 
 	return 0;
+err_run:
+	usb_put_function(f_msg_multi);
 err_fsg:
 	usb_remove_function(c, f_acm_multi);
 err_conf:
@@ -311,6 +330,8 @@ static int __ref multi_bind(struct usb_composite_dev *cdev)
 #ifdef USB_ETH_RNDIS
 	struct f_rndis_opts *rndis_opts;
 #endif
+	struct fsg_opts *fsg_opts;
+	struct fsg_config config;
 	int status;
 
 	if (!can_support_ecm(cdev->gadget)) {
@@ -373,41 +394,65 @@ static int __ref multi_bind(struct usb_composite_dev *cdev)
 	}
 
 	/* set up mass storage function */
-	{
-		void *retp;
-		retp = fsg_common_from_params(&fsg_common, cdev, &fsg_mod_data,
-					      fsg_num_buffers);
-		if (IS_ERR(retp)) {
-			status = PTR_ERR(retp);
-			goto fail1;
-		}
+	fi_msg = usb_get_function_instance("mass_storage");
+	if (IS_ERR(fi_msg)) {
+		status = PTR_ERR(fi_msg);
+		goto fail1;
 	}
+	fsg_config_from_params(&config, &fsg_mod_data, fsg_num_buffers);
+	fsg_opts = fsg_opts_from_func_inst(fi_msg);
+
+	fsg_opts->no_configfs = true;
+	status = fsg_common_set_num_buffers(fsg_opts->common, fsg_num_buffers);
+	if (status)
+		goto fail2;
+
+	status = fsg_common_set_nluns(fsg_opts->common, config.nluns);
+	if (status)
+		goto fail_set_nluns;
+
+	status = fsg_common_set_cdev(fsg_opts->common, cdev, config.can_stall);
+	if (status)
+		goto fail_set_cdev;
+
+	fsg_common_set_sysfs(fsg_opts->common, true);
+	status = fsg_common_create_luns(fsg_opts->common, &config);
+	if (status)
+		goto fail_set_cdev;
+
+	fsg_common_set_inquiry_string(fsg_opts->common, config.vendor_name,
+				      config.product_name);
 
 	/* allocate string IDs */
 	status = usb_string_ids_tab(cdev, strings_dev);
 	if (unlikely(status < 0))
-		goto fail2;
+		goto fail_string_ids;
 	device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
 
 	/* register configurations */
 	status = rndis_config_register(cdev);
 	if (unlikely(status < 0))
-		goto fail2;
+		goto fail_string_ids;
 
 	status = cdc_config_register(cdev);
 	if (unlikely(status < 0))
-		goto fail2;
+		goto fail_string_ids;
 	usb_composite_overwrite_options(cdev, &coverwrite);
 
 	/* we're done */
 	dev_info(&gadget->dev, DRIVER_DESC "\n");
-	fsg_common_put(&fsg_common);
 	return 0;
 
 
 	/* error recovery */
+fail_string_ids:
+	fsg_common_remove_luns(fsg_opts->common);
+fail_set_cdev:
+	fsg_common_free_luns(fsg_opts->common);
+fail_set_nluns:
+	fsg_common_free_buffers(fsg_opts->common);
 fail2:
-	fsg_common_put(&fsg_common);
+	usb_put_function_instance(fi_msg);
 fail1:
 	usb_put_function_instance(fi_acm);
 fail0:
@@ -423,6 +468,13 @@ fail:
 
 static int __exit multi_unbind(struct usb_composite_dev *cdev)
 {
+#ifdef CONFIG_USB_G_MULTI_CDC
+	usb_put_function(f_msg_multi);
+#endif
+#ifdef USB_ETH_RNDIS
+	usb_put_function(f_msg_rndis);
+#endif
+	usb_put_function_instance(fi_msg);
 #ifdef CONFIG_USB_G_MULTI_CDC
 	usb_put_function(f_acm_multi);
 #endif
-- 
cgit 


From 7a93d040e01ec9053ec6ea4486f21829d48f903a Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 9 Oct 2013 10:08:28 +0200
Subject: usb: gadget: f_mass_storage: remove compatibility layer

There are no more old interface users left. Remove it.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/f_mass_storage.c | 150 +++++-------------------------------
 drivers/usb/gadget/f_mass_storage.h |  21 -----
 2 files changed, 19 insertions(+), 152 deletions(-)

diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 00d3687594bb..6e5a6daf1a12 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -228,13 +228,6 @@
 #define FSG_DRIVER_DESC		"Mass Storage Function"
 #define FSG_DRIVER_VERSION	"2009/09/11"
 
-/* to avoid a lot of #ifndef-#endif in the temporary compatibility layer */
-#ifndef USB_FMS_INCLUDED
-#define EXPORT_SYMBOL_GPL_IF_MODULE(m) EXPORT_SYMBOL_GPL(m);
-#else
-#define EXPORT_SYMBOL_GPL_IF_MODULE(m)
-#endif
-
 static const char fsg_string_interface[] = "Mass Storage";
 
 #include "storage_common.h"
@@ -2651,13 +2644,13 @@ void fsg_common_get(struct fsg_common *common)
 {
 	kref_get(&common->ref);
 }
-EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_get);
+EXPORT_SYMBOL_GPL(fsg_common_get);
 
 void fsg_common_put(struct fsg_common *common)
 {
 	kref_put(&common->ref, fsg_common_release);
 }
-EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_put);
+EXPORT_SYMBOL_GPL(fsg_common_put);
 
 /* check if fsg_num_buffers is within a valid range */
 static inline int fsg_num_buffers_validate(unsigned int fsg_num_buffers)
@@ -2669,7 +2662,7 @@ static inline int fsg_num_buffers_validate(unsigned int fsg_num_buffers)
 	return -EINVAL;
 }
 
-static struct fsg_common *fsg_common_setup(struct fsg_common *common, bool zero)
+static struct fsg_common *fsg_common_setup(struct fsg_common *common)
 {
 	if (!common) {
 		common = kzalloc(sizeof(*common), GFP_KERNEL);
@@ -2677,8 +2670,6 @@ static struct fsg_common *fsg_common_setup(struct fsg_common *common, bool zero)
 			return ERR_PTR(-ENOMEM);
 		common->free_storage_on_release = 1;
 	} else {
-		if (zero)
-			memset(common, 0, sizeof(*common));
 		common->free_storage_on_release = 0;
 	}
 	init_rwsem(&common->filesem);
@@ -2695,7 +2686,7 @@ void fsg_common_set_sysfs(struct fsg_common *common, bool sysfs)
 {
 	common->sysfs = sysfs;
 }
-EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_set_sysfs);
+EXPORT_SYMBOL_GPL(fsg_common_set_sysfs);
 
 static void _fsg_common_free_buffers(struct fsg_buffhd *buffhds, unsigned n)
 {
@@ -2751,7 +2742,7 @@ error_release:
 
 	return -ENOMEM;
 }
-EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_set_num_buffers);
+EXPORT_SYMBOL_GPL(fsg_common_set_num_buffers);
 
 static inline void fsg_common_remove_sysfs(struct fsg_lun *lun)
 {
@@ -2790,7 +2781,7 @@ void fsg_common_remove_lun(struct fsg_lun *lun, bool sysfs)
 	fsg_lun_close(lun);
 	kfree(lun);
 }
-EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_remove_lun);
+EXPORT_SYMBOL_GPL(fsg_common_remove_lun);
 
 static void _fsg_common_remove_luns(struct fsg_common *common, int n)
 {
@@ -2802,7 +2793,7 @@ static void _fsg_common_remove_luns(struct fsg_common *common, int n)
 			common->luns[i] = NULL;
 		}
 }
-EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_remove_luns);
+EXPORT_SYMBOL_GPL(fsg_common_remove_luns);
 
 void fsg_common_remove_luns(struct fsg_common *common)
 {
@@ -2815,7 +2806,7 @@ void fsg_common_free_luns(struct fsg_common *common)
 	kfree(common->luns);
 	common->luns = NULL;
 }
-EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_free_luns);
+EXPORT_SYMBOL_GPL(fsg_common_free_luns);
 
 int fsg_common_set_nluns(struct fsg_common *common, int nluns)
 {
@@ -2841,21 +2832,21 @@ int fsg_common_set_nluns(struct fsg_common *common, int nluns)
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_set_nluns);
+EXPORT_SYMBOL_GPL(fsg_common_set_nluns);
 
 void fsg_common_set_ops(struct fsg_common *common,
 			const struct fsg_operations *ops)
 {
 	common->ops = ops;
 }
-EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_set_ops);
+EXPORT_SYMBOL_GPL(fsg_common_set_ops);
 
 void fsg_common_free_buffers(struct fsg_common *common)
 {
 	_fsg_common_free_buffers(common->buffhds, common->fsg_num_buffers);
 	common->buffhds = NULL;
 }
-EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_free_buffers);
+EXPORT_SYMBOL_GPL(fsg_common_free_buffers);
 
 int fsg_common_set_cdev(struct fsg_common *common,
 			 struct usb_composite_dev *cdev, bool can_stall)
@@ -2883,7 +2874,7 @@ int fsg_common_set_cdev(struct fsg_common *common,
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_set_cdev);
+EXPORT_SYMBOL_GPL(fsg_common_set_cdev);
 
 static inline int fsg_common_add_sysfs(struct fsg_common *common,
 				       struct fsg_lun *lun)
@@ -3006,7 +2997,7 @@ error_sysfs:
 	kfree(lun);
 	return rc;
 }
-EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_create_lun);
+EXPORT_SYMBOL_GPL(fsg_common_create_lun);
 
 int fsg_common_create_luns(struct fsg_common *common, struct fsg_config *cfg)
 {
@@ -3028,7 +3019,7 @@ fail:
 	_fsg_common_remove_luns(common, i);
 	return rc;
 }
-EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_create_luns);
+EXPORT_SYMBOL_GPL(fsg_common_create_luns);
 
 void fsg_common_set_inquiry_string(struct fsg_common *common, const char *vn,
 				   const char *pn)
@@ -3045,7 +3036,7 @@ void fsg_common_set_inquiry_string(struct fsg_common *common, const char *vn,
 		     : "File-Stor Gadget"),
 		 i);
 }
-EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_set_inquiry_string);
+EXPORT_SYMBOL_GPL(fsg_common_set_inquiry_string);
 
 int fsg_common_run_thread(struct fsg_common *common)
 {
@@ -3064,61 +3055,7 @@ int fsg_common_run_thread(struct fsg_common *common)
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_run_thread);
-
-struct fsg_common *fsg_common_init(struct fsg_common *common,
-				   struct usb_composite_dev *cdev,
-				   struct fsg_config *cfg)
-{
-	int rc;
-
-	common = fsg_common_setup(common, !!common);
-	if (IS_ERR(common))
-		return common;
-	fsg_common_set_sysfs(common, true);
-	common->state = FSG_STATE_IDLE;
-
-	rc = fsg_common_set_num_buffers(common, cfg->fsg_num_buffers);
-	if (rc) {
-		if (common->free_storage_on_release)
-			kfree(common);
-		return ERR_PTR(rc);
-	}
-	common->ops = cfg->ops;
-	common->private_data = cfg->private_data;
-
-	rc = fsg_common_set_cdev(common, cdev, cfg->can_stall);
-	if (rc)
-		goto error_release;
-
-	rc = fsg_common_set_nluns(common, cfg->nluns);
-	if (rc)
-		goto error_release;
-
-	rc = fsg_common_create_luns(common, cfg);
-	if (rc)
-		goto error_release;
-
-
-	fsg_common_set_inquiry_string(common, cfg->vendor_name,
-				      cfg->product_name);
-
-	/* Information */
-	INFO(common, FSG_DRIVER_DESC ", version: " FSG_DRIVER_VERSION "\n");
-
-	rc = fsg_common_run_thread(common);
-	if (rc)
-		goto error_release;
-
-	return common;
-
-error_release:
-	common->state = FSG_STATE_TERMINATED;	/* The thread is dead */
-	/* Call fsg_common_release() directly, ref might be not initialised. */
-	fsg_common_release(&common->ref);
-	return ERR_PTR(rc);
-}
-EXPORT_SYMBOL_GPL_IF_MODULE(fsg_common_init);
+EXPORT_SYMBOL_GPL(fsg_common_run_thread);
 
 static void fsg_common_release(struct kref *ref)
 {
@@ -3166,9 +3103,8 @@ static int fsg_bind(struct usb_configuration *c, struct usb_function *f)
 	struct usb_ep		*ep;
 	unsigned		max_burst;
 	int			ret;
-
-#ifndef USB_FMS_INCLUDED
 	struct fsg_opts		*opts;
+
 	opts = fsg_opts_from_func_inst(f->fi);
 	if (!opts->no_configfs) {
 		ret = fsg_common_set_cdev(fsg->common, c->cdev,
@@ -3180,7 +3116,6 @@ static int fsg_bind(struct usb_configuration *c, struct usb_function *f)
 		if (ret)
 			return ret;
 	}
-#endif
 
 	fsg->gadget = gadget;
 
@@ -3248,54 +3183,9 @@ static void fsg_unbind(struct usb_configuration *c, struct usb_function *f)
 		wait_event(common->fsg_wait, common->fsg != fsg);
 	}
 
-#ifdef USB_FMS_INCLUDED
-	fsg_common_put(common);
-#endif
 	usb_free_all_descriptors(&fsg->function);
-#ifdef USB_FMS_INCLUDED
-	kfree(fsg);
-#endif
-}
-
-#ifdef USB_FMS_INCLUDED
-
-static int fsg_bind_config(struct usb_composite_dev *cdev,
-			   struct usb_configuration *c,
-			   struct fsg_common *common)
-{
-	struct fsg_dev *fsg;
-	int rc;
-
-	fsg = kzalloc(sizeof *fsg, GFP_KERNEL);
-	if (unlikely(!fsg))
-		return -ENOMEM;
-
-	fsg->function.name        = FSG_DRIVER_DESC;
-	fsg->function.bind        = fsg_bind;
-	fsg->function.unbind      = fsg_unbind;
-	fsg->function.setup       = fsg_setup;
-	fsg->function.set_alt     = fsg_set_alt;
-	fsg->function.disable     = fsg_disable;
-
-	fsg->common               = common;
-	/*
-	 * Our caller holds a reference to common structure so we
-	 * don't have to be worry about it being freed until we return
-	 * from this function.  So instead of incrementing counter now
-	 * and decrement in error recovery we increment it only when
-	 * call to usb_add_function() was successful.
-	 */
-
-	rc = usb_add_function(c, &fsg->function);
-	if (unlikely(rc))
-		kfree(fsg);
-	else
-		fsg_common_get(fsg->common);
-	return rc;
 }
 
-#else
-
 static inline struct fsg_lun_opts *to_fsg_lun_opts(struct config_item *item)
 {
 	return container_of(to_config_group(item), struct fsg_lun_opts, group);
@@ -3652,7 +3542,7 @@ static struct usb_function_instance *fsg_alloc_inst(void)
 		return ERR_PTR(-ENOMEM);
 	mutex_init(&opts->lock);
 	opts->func_inst.free_func_inst = fsg_free_inst;
-	opts->common = fsg_common_setup(opts->common, false);
+	opts->common = fsg_common_setup(opts->common);
 	if (IS_ERR(opts->common)) {
 		rc = PTR_ERR(opts->common);
 		goto release_opts;
@@ -3734,8 +3624,6 @@ DECLARE_USB_FUNCTION_INIT(mass_storage, fsg_alloc_inst, fsg_alloc);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Michal Nazarewicz");
 
-#endif
-
 /************************* Module parameters *************************/
 
 
@@ -3771,5 +3659,5 @@ void fsg_config_from_params(struct fsg_config *cfg,
 	cfg->can_stall = params->stall;
 	cfg->fsg_num_buffers = fsg_num_buffers;
 }
-EXPORT_SYMBOL_GPL_IF_MODULE(fsg_config_from_params);
+EXPORT_SYMBOL_GPL(fsg_config_from_params);
 
diff --git a/drivers/usb/gadget/f_mass_storage.h b/drivers/usb/gadget/f_mass_storage.h
index 7d421d2ac3c9..b4866fcef30b 100644
--- a/drivers/usb/gadget/f_mass_storage.h
+++ b/drivers/usb/gadget/f_mass_storage.h
@@ -128,10 +128,6 @@ void fsg_common_get(struct fsg_common *common);
 
 void fsg_common_put(struct fsg_common *common);
 
-struct fsg_common *fsg_common_init(struct fsg_common *common,
-				   struct usb_composite_dev *cdev,
-				   struct fsg_config *cfg);
-
 void fsg_common_set_sysfs(struct fsg_common *common, bool sysfs);
 
 int fsg_common_set_num_buffers(struct fsg_common *common, unsigned int n);
@@ -167,21 +163,4 @@ void fsg_config_from_params(struct fsg_config *cfg,
 			    const struct fsg_module_parameters *params,
 			    unsigned int fsg_num_buffers);
 
-static inline struct fsg_common *
-fsg_common_from_params(struct fsg_common *common,
-		       struct usb_composite_dev *cdev,
-		       const struct fsg_module_parameters *params,
-		       unsigned int fsg_num_buffers)
-	__attribute__((unused));
-static inline struct fsg_common *
-fsg_common_from_params(struct fsg_common *common,
-		       struct usb_composite_dev *cdev,
-		       const struct fsg_module_parameters *params,
-		       unsigned int fsg_num_buffers)
-{
-	struct fsg_config cfg;
-	fsg_config_from_params(&cfg, params, fsg_num_buffers);
-	return fsg_common_init(common, cdev, &cfg);
-}
-
 #endif /* USB_F_MASS_STORAGE_H */
-- 
cgit 


From 8254baccdd2635782826936b72608449b6b4bbde Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 9 Oct 2013 10:08:29 +0200
Subject: usb: gadget: mass_storage: merge usb_f_mass_storage module with u_ms
 module

u_ms.ko is needed only together with usb_f_mass_storage.ko. Merge them.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/Kconfig  | 7 -------
 drivers/usb/gadget/Makefile | 4 +---
 2 files changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 4b0c456f9d63..604f885345f1 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -525,9 +525,6 @@ config USB_F_SUBSET
 config USB_F_RNDIS
 	tristate
 
-config USB_U_MS
-	tristate
-
 config USB_F_MASS_STORAGE
 	tristate
 
@@ -671,7 +668,6 @@ config USB_CONFIGFS_PHONET
 config USB_CONFIGFS_MASS_STORAGE
 	boolean "Mass storage"
 	depends on USB_CONFIGFS
-	select USB_U_MS
 	select USB_F_MASS_STORAGE
 	help
 	  The Mass Storage Gadget acts as a USB Mass Storage disk drive.
@@ -895,7 +891,6 @@ config USB_MASS_STORAGE
 	tristate "Mass Storage Gadget"
 	depends on BLOCK
 	select USB_LIBCOMPOSITE
-	select USB_U_MS
 	select USB_F_MASS_STORAGE
 	help
 	  The Mass Storage Gadget acts as a USB Mass Storage disk drive.
@@ -1020,7 +1015,6 @@ config USB_G_ACM_MS
 	select USB_LIBCOMPOSITE
 	select USB_U_SERIAL
 	select USB_F_ACM
-	select USB_U_MS
 	select USB_F_MASS_STORAGE
 	help
 	  This driver provides two functions in one configuration:
@@ -1037,7 +1031,6 @@ config USB_G_MULTI
 	select USB_U_SERIAL
 	select USB_U_ETHER
 	select USB_F_ACM
-	select USB_U_MS
 	select USB_F_MASS_STORAGE
 	help
 	  The Multifunction Composite Gadget provides Ethernet (RNDIS
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index 4a86b0c06676..f1bd42a2cbba 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -60,9 +60,7 @@ usb_f_ecm_subset-y		:= f_subset.o
 obj-$(CONFIG_USB_F_SUBSET)	+= usb_f_ecm_subset.o
 usb_f_rndis-y			:= f_rndis.o
 obj-$(CONFIG_USB_F_RNDIS)	+= usb_f_rndis.o
-u_ms-y				:= storage_common.o
-obj-$(CONFIG_USB_U_MS)		+= u_ms.o
-usb_f_mass_storage-y		:= f_mass_storage.o
+usb_f_mass_storage-y		:= f_mass_storage.o storage_common.o
 obj-$(CONFIG_USB_F_MASS_STORAGE)+= usb_f_mass_storage.o
 
 #
-- 
cgit 


From c8ce878206076b159ee9488133aa51314570da38 Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Wed, 2 Oct 2013 21:20:29 +0530
Subject: pincntrl: add support for ams AS3722 pin control driver

The AS3722 is a compact system PMU suitable for mobile phones, tablets etc.

Add a driver to support accessing the GPIO, pinmux and pin configuration
of 8 GPIO pins found on the ams AS3722 through pin control driver and
gpiolib.

The driver will register itself as the pincontrol driver and gpio driver.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/Kconfig          |  11 +
 drivers/pinctrl/Makefile         |   1 +
 drivers/pinctrl/pinctrl-as3722.c | 630 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 642 insertions(+)
 create mode 100644 drivers/pinctrl/pinctrl-as3722.c

diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 21db2013543b..85f5462460aa 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -59,6 +59,17 @@ config PINCTRL_ADI2
 	  future processors. This option is selected automatically when specific
 	  machine and arch are selected to build.
 
+config PINCTRL_AS3722
+	bool "Pinctrl and GPIO driver for ams AS3722 PMIC"
+	depends on MFD_AS3722 && GPIOLIB
+	select PINMUX
+	select GENERIC_PINCONF
+	help
+	  AS3722 device supports the configuration of GPIO pins for different
+	  functionality. This driver supports the pinmux, push-pull and
+	  open drain configuration for the GPIO pins of AS3722 devices. It also
+	  supports the GPIO functionality through gpiolib.
+
 config PINCTRL_BF54x
 	def_bool y if BF54x
 	select PINCTRL_ADI2
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index bbeb98086495..3d14cb855b2c 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_PINCTRL_AB8540)	+= pinctrl-ab8540.o
 obj-$(CONFIG_PINCTRL_AB9540)	+= pinctrl-ab9540.o
 obj-$(CONFIG_PINCTRL_AB8505)	+= pinctrl-ab8505.o
 obj-$(CONFIG_PINCTRL_ADI2)	+= pinctrl-adi2.o
+obj-$(CONFIG_PINCTRL_AS3722)	+= pinctrl-as3722.o
 obj-$(CONFIG_PINCTRL_BF54x)	+= pinctrl-adi2-bf54x.o
 obj-$(CONFIG_PINCTRL_BF60x)	+= pinctrl-adi2-bf60x.o
 obj-$(CONFIG_PINCTRL_AT91)	+= pinctrl-at91.o
diff --git a/drivers/pinctrl/pinctrl-as3722.c b/drivers/pinctrl/pinctrl-as3722.c
new file mode 100644
index 000000000000..01bffc1d52fd
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-as3722.c
@@ -0,0 +1,630 @@
+/*
+ * ams AS3722 pin control and GPIO driver.
+ *
+ * Copyright (c) 2013, NVIDIA Corporation.
+ *
+ * Author: Laxman Dewangan <ldewangan@nvidia.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind,
+ * whether express or implied; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ * 02111-1307, USA
+ */
+
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mfd/as3722.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/pinctrl/machine.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/pm.h>
+#include <linux/slab.h>
+
+#include "core.h"
+#include "pinconf.h"
+#include "pinctrl-utils.h"
+
+#define AS3722_PIN_GPIO0		0
+#define AS3722_PIN_GPIO1		1
+#define AS3722_PIN_GPIO2		2
+#define AS3722_PIN_GPIO3		3
+#define AS3722_PIN_GPIO4		4
+#define AS3722_PIN_GPIO5		5
+#define AS3722_PIN_GPIO6		6
+#define AS3722_PIN_GPIO7		7
+#define AS3722_PIN_NUM			(AS3722_PIN_GPIO7 + 1)
+
+#define AS3722_GPIO_MODE_PULL_UP           BIT(PIN_CONFIG_BIAS_PULL_UP)
+#define AS3722_GPIO_MODE_PULL_DOWN         BIT(PIN_CONFIG_BIAS_PULL_DOWN)
+#define AS3722_GPIO_MODE_HIGH_IMPED        BIT(PIN_CONFIG_BIAS_HIGH_IMPEDANCE)
+#define AS3722_GPIO_MODE_OPEN_DRAIN        BIT(PIN_CONFIG_DRIVE_OPEN_DRAIN)
+
+struct as3722_pin_function {
+	const char *name;
+	const char * const *groups;
+	unsigned ngroups;
+	int mux_option;
+};
+
+struct as3722_gpio_pin_control {
+	bool enable_gpio_invert;
+	unsigned mode_prop;
+	int io_function;
+};
+
+struct as3722_pingroup {
+	const char *name;
+	const unsigned pins[1];
+	unsigned npins;
+};
+
+struct as3722_pctrl_info {
+	struct device *dev;
+	struct pinctrl_dev *pctl;
+	struct as3722 *as3722;
+	struct gpio_chip gpio_chip;
+	int pins_current_opt[AS3722_PIN_NUM];
+	const struct as3722_pin_function *functions;
+	unsigned num_functions;
+	const struct as3722_pingroup *pin_groups;
+	int num_pin_groups;
+	const struct pinctrl_pin_desc *pins;
+	unsigned num_pins;
+	struct as3722_gpio_pin_control gpio_control[AS3722_PIN_NUM];
+};
+
+static const struct pinctrl_pin_desc as3722_pins_desc[] = {
+	PINCTRL_PIN(AS3722_PIN_GPIO0, "gpio0"),
+	PINCTRL_PIN(AS3722_PIN_GPIO1, "gpio1"),
+	PINCTRL_PIN(AS3722_PIN_GPIO2, "gpio2"),
+	PINCTRL_PIN(AS3722_PIN_GPIO3, "gpio3"),
+	PINCTRL_PIN(AS3722_PIN_GPIO4, "gpio4"),
+	PINCTRL_PIN(AS3722_PIN_GPIO5, "gpio5"),
+	PINCTRL_PIN(AS3722_PIN_GPIO6, "gpio6"),
+	PINCTRL_PIN(AS3722_PIN_GPIO7, "gpio7"),
+};
+
+static const char * const gpio_groups[] = {
+	"gpio0",
+	"gpio1",
+	"gpio2",
+	"gpio3",
+	"gpio4",
+	"gpio5",
+	"gpio6",
+	"gpio7",
+};
+
+enum as3722_pinmux_option {
+	AS3722_PINMUX_GPIO			= 0,
+	AS3722_PINMUX_INTERRUPT_OUT		= 1,
+	AS3722_PINMUX_VSUB_VBAT_UNDEB_LOW_OUT	= 2,
+	AS3722_PINMUX_GPIO_INTERRUPT		= 3,
+	AS3722_PINMUX_PWM_INPUT			= 4,
+	AS3722_PINMUX_VOLTAGE_IN_STBY		= 5,
+	AS3722_PINMUX_OC_PG_SD0			= 6,
+	AS3722_PINMUX_PG_OUT			= 7,
+	AS3722_PINMUX_CLK32K_OUT		= 8,
+	AS3722_PINMUX_WATCHDOG_INPUT		= 9,
+	AS3722_PINMUX_SOFT_RESET_IN		= 11,
+	AS3722_PINMUX_PWM_OUTPUT		= 12,
+	AS3722_PINMUX_VSUB_VBAT_LOW_DEB_OUT	= 13,
+	AS3722_PINMUX_OC_PG_SD6			= 14,
+};
+
+#define FUNCTION_GROUP(fname, mux)			\
+	{						\
+		.name = #fname,				\
+		.groups = gpio_groups,			\
+		.ngroups = ARRAY_SIZE(gpio_groups),	\
+		.mux_option = AS3722_PINMUX_##mux,	\
+	}
+
+static const struct as3722_pin_function as3722_pin_function[] = {
+	FUNCTION_GROUP(gpio, GPIO),
+	FUNCTION_GROUP(interrupt-out, INTERRUPT_OUT),
+	FUNCTION_GROUP(gpio-in-interrupt, GPIO_INTERRUPT),
+	FUNCTION_GROUP(vsup-vbat-low-undebounce-out, VSUB_VBAT_UNDEB_LOW_OUT),
+	FUNCTION_GROUP(vsup-vbat-low-debounce-out, VSUB_VBAT_LOW_DEB_OUT),
+	FUNCTION_GROUP(voltage-in-standby, VOLTAGE_IN_STBY),
+	FUNCTION_GROUP(oc-pg-sd0, OC_PG_SD0),
+	FUNCTION_GROUP(oc-pg-sd6, OC_PG_SD6),
+	FUNCTION_GROUP(powergood-out, PG_OUT),
+	FUNCTION_GROUP(pwm-in, PWM_INPUT),
+	FUNCTION_GROUP(pwm-out, PWM_OUTPUT),
+	FUNCTION_GROUP(clk32k-out, CLK32K_OUT),
+	FUNCTION_GROUP(watchdog-in, WATCHDOG_INPUT),
+	FUNCTION_GROUP(soft-reset-in, SOFT_RESET_IN),
+};
+
+#define AS3722_PINGROUP(pg_name, pin_id) \
+	{								\
+		.name = #pg_name,					\
+		.pins = {AS3722_PIN_##pin_id},				\
+		.npins = 1,						\
+	}
+
+static const struct as3722_pingroup as3722_pingroups[] = {
+	AS3722_PINGROUP(gpio0,	GPIO0),
+	AS3722_PINGROUP(gpio1,	GPIO1),
+	AS3722_PINGROUP(gpio2,	GPIO2),
+	AS3722_PINGROUP(gpio3,	GPIO3),
+	AS3722_PINGROUP(gpio4,	GPIO4),
+	AS3722_PINGROUP(gpio5,	GPIO5),
+	AS3722_PINGROUP(gpio6,	GPIO6),
+	AS3722_PINGROUP(gpio7,	GPIO7),
+};
+
+static int as3722_pinctrl_get_groups_count(struct pinctrl_dev *pctldev)
+{
+	struct as3722_pctrl_info *as_pci = pinctrl_dev_get_drvdata(pctldev);
+
+	return as_pci->num_pin_groups;
+}
+
+static const char *as3722_pinctrl_get_group_name(struct pinctrl_dev *pctldev,
+		unsigned group)
+{
+	struct as3722_pctrl_info *as_pci = pinctrl_dev_get_drvdata(pctldev);
+
+	return as_pci->pin_groups[group].name;
+}
+
+static int as3722_pinctrl_get_group_pins(struct pinctrl_dev *pctldev,
+		unsigned group, const unsigned **pins, unsigned *num_pins)
+{
+	struct as3722_pctrl_info *as_pci = pinctrl_dev_get_drvdata(pctldev);
+
+	*pins = as_pci->pin_groups[group].pins;
+	*num_pins = as_pci->pin_groups[group].npins;
+	return 0;
+}
+
+static const struct pinctrl_ops as3722_pinctrl_ops = {
+	.get_groups_count = as3722_pinctrl_get_groups_count,
+	.get_group_name = as3722_pinctrl_get_group_name,
+	.get_group_pins = as3722_pinctrl_get_group_pins,
+	.dt_node_to_map = pinconf_generic_dt_node_to_map_pin,
+	.dt_free_map = pinctrl_utils_dt_free_map,
+};
+
+static int as3722_pinctrl_get_funcs_count(struct pinctrl_dev *pctldev)
+{
+	struct as3722_pctrl_info *as_pci = pinctrl_dev_get_drvdata(pctldev);
+
+	return as_pci->num_functions;
+}
+
+static const char *as3722_pinctrl_get_func_name(struct pinctrl_dev *pctldev,
+			unsigned function)
+{
+	struct as3722_pctrl_info *as_pci = pinctrl_dev_get_drvdata(pctldev);
+
+	return as_pci->functions[function].name;
+}
+
+static int as3722_pinctrl_get_func_groups(struct pinctrl_dev *pctldev,
+		unsigned function, const char * const **groups,
+		unsigned * const num_groups)
+{
+	struct as3722_pctrl_info *as_pci = pinctrl_dev_get_drvdata(pctldev);
+
+	*groups = as_pci->functions[function].groups;
+	*num_groups = as_pci->functions[function].ngroups;
+	return 0;
+}
+
+static int as3722_pinctrl_enable(struct pinctrl_dev *pctldev, unsigned function,
+		unsigned group)
+{
+	struct as3722_pctrl_info *as_pci = pinctrl_dev_get_drvdata(pctldev);
+	int gpio_cntr_reg = AS3722_GPIOn_CONTROL_REG(group);
+	u8 val = AS3722_GPIO_IOSF_VAL(as_pci->functions[function].mux_option);
+	int ret;
+
+	dev_dbg(as_pci->dev, "%s(): GPIO %u pin to function %u and val %u\n",
+		__func__, group, function, val);
+
+	ret = as3722_update_bits(as_pci->as3722, gpio_cntr_reg,
+			AS3722_GPIO_IOSF_MASK, val);
+	if (ret < 0) {
+		dev_err(as_pci->dev, "GPIO%d_CTRL_REG update failed %d\n",
+			group, ret);
+		return ret;
+	}
+	as_pci->gpio_control[group].io_function = function;
+	return ret;
+}
+
+static int as3722_pinctrl_gpio_get_mode(unsigned gpio_mode_prop, bool input)
+{
+	if (gpio_mode_prop & AS3722_GPIO_MODE_HIGH_IMPED)
+		return -EINVAL;
+
+	if (gpio_mode_prop & AS3722_GPIO_MODE_OPEN_DRAIN) {
+		if (gpio_mode_prop & AS3722_GPIO_MODE_PULL_UP)
+			return AS3722_GPIO_MODE_IO_OPEN_DRAIN_PULL_UP;
+		return AS3722_GPIO_MODE_IO_OPEN_DRAIN;
+	}
+	if (input) {
+		if (gpio_mode_prop & AS3722_GPIO_MODE_PULL_UP)
+			return AS3722_GPIO_MODE_INPUT_PULL_UP;
+		else if (gpio_mode_prop & AS3722_GPIO_MODE_PULL_DOWN)
+			return AS3722_GPIO_MODE_INPUT_PULL_DOWN;
+		return AS3722_GPIO_MODE_INPUT;
+	}
+	if (gpio_mode_prop & AS3722_GPIO_MODE_PULL_DOWN)
+		return AS3722_GPIO_MODE_OUTPUT_VDDL;
+	return AS3722_GPIO_MODE_OUTPUT_VDDH;
+}
+
+static int as3722_pinctrl_gpio_request_enable(struct pinctrl_dev *pctldev,
+		struct pinctrl_gpio_range *range, unsigned offset)
+{
+	struct as3722_pctrl_info *as_pci = pinctrl_dev_get_drvdata(pctldev);
+
+	if (as_pci->gpio_control[offset].io_function)
+		return -EBUSY;
+	return 0;
+}
+
+static int as3722_pinctrl_gpio_set_direction(struct pinctrl_dev *pctldev,
+		struct pinctrl_gpio_range *range, unsigned offset, bool input)
+{
+	struct as3722_pctrl_info *as_pci = pinctrl_dev_get_drvdata(pctldev);
+	struct as3722 *as3722 = as_pci->as3722;
+	int mode;
+
+	mode = as3722_pinctrl_gpio_get_mode(
+			as_pci->gpio_control[offset].mode_prop, input);
+	if (mode < 0) {
+		dev_err(as_pci->dev, "%s direction for GPIO %d not supported\n",
+			(input) ? "Input" : "Output", offset);
+		return mode;
+	}
+
+	if (as_pci->gpio_control[offset].enable_gpio_invert)
+		mode |= AS3722_GPIO_INV;
+
+	return as3722_write(as3722, AS3722_GPIOn_CONTROL_REG(offset), mode);
+}
+
+static const struct pinmux_ops as3722_pinmux_ops = {
+	.get_functions_count	= as3722_pinctrl_get_funcs_count,
+	.get_function_name	= as3722_pinctrl_get_func_name,
+	.get_function_groups	= as3722_pinctrl_get_func_groups,
+	.enable			= as3722_pinctrl_enable,
+	.gpio_request_enable	= as3722_pinctrl_gpio_request_enable,
+	.gpio_set_direction	= as3722_pinctrl_gpio_set_direction,
+};
+
+static int as3722_pinconf_get(struct pinctrl_dev *pctldev,
+			unsigned pin, unsigned long *config)
+{
+	struct as3722_pctrl_info *as_pci = pinctrl_dev_get_drvdata(pctldev);
+	enum pin_config_param param = pinconf_to_config_param(*config);
+	int arg = 0;
+	u16 prop;
+
+	switch (param) {
+	case PIN_CONFIG_BIAS_DISABLE:
+		prop = AS3722_GPIO_MODE_PULL_UP |
+				AS3722_GPIO_MODE_PULL_DOWN;
+		if (!(as_pci->gpio_control[pin].mode_prop & prop))
+			arg = 1;
+		prop = 0;
+		break;
+
+	case PIN_CONFIG_BIAS_PULL_UP:
+		prop = AS3722_GPIO_MODE_PULL_UP;
+		break;
+
+	case PIN_CONFIG_BIAS_PULL_DOWN:
+		prop = AS3722_GPIO_MODE_PULL_DOWN;
+		break;
+
+	case PIN_CONFIG_DRIVE_OPEN_DRAIN:
+		prop = AS3722_GPIO_MODE_OPEN_DRAIN;
+		break;
+
+	case PIN_CONFIG_BIAS_HIGH_IMPEDANCE:
+		prop = AS3722_GPIO_MODE_HIGH_IMPED;
+		break;
+
+	default:
+		dev_err(as_pci->dev, "Properties not supported\n");
+		return -ENOTSUPP;
+	}
+
+	if (as_pci->gpio_control[pin].mode_prop & prop)
+		arg = 1;
+
+	*config = pinconf_to_config_packed(param, (u16)arg);
+	return 0;
+}
+
+static int as3722_pinconf_set(struct pinctrl_dev *pctldev,
+			unsigned pin, unsigned long *configs,
+			unsigned num_configs)
+{
+	struct as3722_pctrl_info *as_pci = pinctrl_dev_get_drvdata(pctldev);
+	enum pin_config_param param;
+	int mode_prop;
+	int i;
+
+	for (i = 0; i < num_configs; i++) {
+		param = pinconf_to_config_param(configs[i]);
+		mode_prop = as_pci->gpio_control[pin].mode_prop;
+
+		switch (param) {
+		case PIN_CONFIG_BIAS_PULL_PIN_DEFAULT:
+			break;
+
+		case PIN_CONFIG_BIAS_DISABLE:
+			mode_prop &= ~(AS3722_GPIO_MODE_PULL_UP |
+					AS3722_GPIO_MODE_PULL_DOWN);
+			break;
+		case PIN_CONFIG_BIAS_PULL_UP:
+			mode_prop |= AS3722_GPIO_MODE_PULL_UP;
+			break;
+
+		case PIN_CONFIG_BIAS_PULL_DOWN:
+			mode_prop |= AS3722_GPIO_MODE_PULL_DOWN;
+			break;
+
+		case PIN_CONFIG_BIAS_HIGH_IMPEDANCE:
+			mode_prop |= AS3722_GPIO_MODE_HIGH_IMPED;
+			break;
+
+		case PIN_CONFIG_DRIVE_OPEN_DRAIN:
+			mode_prop |= AS3722_GPIO_MODE_OPEN_DRAIN;
+			break;
+
+		default:
+			dev_err(as_pci->dev, "Properties not supported\n");
+			return -ENOTSUPP;
+		}
+
+		as_pci->gpio_control[pin].mode_prop = mode_prop;
+	}
+	return 0;
+}
+
+static const struct pinconf_ops as3722_pinconf_ops = {
+	.pin_config_get = as3722_pinconf_get,
+	.pin_config_set = as3722_pinconf_set,
+};
+
+static struct pinctrl_desc as3722_pinctrl_desc = {
+	.pctlops = &as3722_pinctrl_ops,
+	.pmxops = &as3722_pinmux_ops,
+	.confops = &as3722_pinconf_ops,
+	.owner = THIS_MODULE,
+};
+
+static inline struct as3722_pctrl_info *to_as_pci(struct gpio_chip *chip)
+{
+	return container_of(chip, struct as3722_pctrl_info, gpio_chip);
+}
+
+static int as3722_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+	struct as3722_pctrl_info *as_pci = to_as_pci(chip);
+	struct as3722 *as3722 = as_pci->as3722;
+	int ret;
+	u32 reg;
+	u32 control;
+	u32 val;
+	int mode;
+	int invert_enable;
+
+	ret = as3722_read(as3722, AS3722_GPIOn_CONTROL_REG(offset), &control);
+	if (ret < 0) {
+		dev_err(as_pci->dev,
+			"GPIO_CONTROL%d_REG read failed: %d\n", offset, ret);
+		return ret;
+	}
+
+	invert_enable = !!(control & AS3722_GPIO_INV);
+	mode = control & AS3722_GPIO_MODE_MASK;
+	switch (mode) {
+	case AS3722_GPIO_MODE_INPUT:
+	case AS3722_GPIO_MODE_INPUT_PULL_UP:
+	case AS3722_GPIO_MODE_INPUT_PULL_DOWN:
+	case AS3722_GPIO_MODE_IO_OPEN_DRAIN:
+	case AS3722_GPIO_MODE_IO_OPEN_DRAIN_PULL_UP:
+		reg = AS3722_GPIO_SIGNAL_IN_REG;
+		break;
+	case AS3722_GPIO_MODE_OUTPUT_VDDH:
+	case AS3722_GPIO_MODE_OUTPUT_VDDL:
+		reg = AS3722_GPIO_SIGNAL_OUT_REG;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	ret = as3722_read(as3722, reg, &val);
+	if (ret < 0) {
+		dev_err(as_pci->dev,
+			"GPIO_SIGNAL_IN_REG read failed: %d\n", ret);
+		return ret;
+	}
+
+	val = !!(val & AS3722_GPIOn_SIGNAL(offset));
+	return (invert_enable) ? !val : val;
+}
+
+static void as3722_gpio_set(struct gpio_chip *chip, unsigned offset,
+		int value)
+{
+	struct as3722_pctrl_info *as_pci = to_as_pci(chip);
+	struct as3722 *as3722 = as_pci->as3722;
+	int en_invert = as_pci->gpio_control[offset].enable_gpio_invert;
+	u32 val;
+	int ret;
+
+	if (value)
+		val = (en_invert) ? 0 : AS3722_GPIOn_SIGNAL(offset);
+	else
+		val = (en_invert) ? AS3722_GPIOn_SIGNAL(offset) : 0;
+
+	ret = as3722_update_bits(as3722, AS3722_GPIO_SIGNAL_OUT_REG,
+			AS3722_GPIOn_SIGNAL(offset), val);
+	if (ret < 0)
+		dev_err(as_pci->dev,
+			"GPIO_SIGNAL_OUT_REG update failed: %d\n", ret);
+}
+
+static int as3722_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+	return pinctrl_gpio_direction_input(chip->base + offset);
+}
+
+static int as3722_gpio_direction_output(struct gpio_chip *chip,
+		unsigned offset, int value)
+{
+	as3722_gpio_set(chip, offset, value);
+	return pinctrl_gpio_direction_output(chip->base + offset);
+}
+
+static int as3722_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+	struct as3722_pctrl_info *as_pci = to_as_pci(chip);
+
+	return as3722_irq_get_virq(as_pci->as3722, offset);
+}
+
+static int as3722_gpio_request(struct gpio_chip *chip, unsigned offset)
+{
+	return pinctrl_request_gpio(chip->base + offset);
+}
+
+static void as3722_gpio_free(struct gpio_chip *chip, unsigned offset)
+{
+	pinctrl_free_gpio(chip->base + offset);
+}
+
+static const struct gpio_chip as3722_gpio_chip = {
+	.label			= "as3722-gpio",
+	.owner			= THIS_MODULE,
+	.request		= as3722_gpio_request,
+	.free			= as3722_gpio_free,
+	.get			= as3722_gpio_get,
+	.set			= as3722_gpio_set,
+	.direction_input	= as3722_gpio_direction_input,
+	.direction_output	= as3722_gpio_direction_output,
+	.to_irq			= as3722_gpio_to_irq,
+	.can_sleep		= 1,
+	.ngpio			= AS3722_PIN_NUM,
+	.base			= -1,
+};
+
+static int as3722_pinctrl_probe(struct platform_device *pdev)
+{
+	struct as3722_pctrl_info *as_pci;
+	int ret;
+	int tret;
+
+	as_pci = devm_kzalloc(&pdev->dev, sizeof(*as_pci), GFP_KERNEL);
+	if (!as_pci)
+		return -ENOMEM;
+
+	as_pci->dev = &pdev->dev;
+	as_pci->dev->of_node = pdev->dev.parent->of_node;
+	as_pci->as3722 = dev_get_drvdata(pdev->dev.parent);
+	platform_set_drvdata(pdev, as_pci);
+
+	as_pci->pins = as3722_pins_desc;
+	as_pci->num_pins = ARRAY_SIZE(as3722_pins_desc);
+	as_pci->functions = as3722_pin_function;
+	as_pci->num_functions = ARRAY_SIZE(as3722_pin_function);
+	as_pci->pin_groups = as3722_pingroups;
+	as_pci->num_pin_groups = ARRAY_SIZE(as3722_pingroups);
+	as3722_pinctrl_desc.name = dev_name(&pdev->dev);
+	as3722_pinctrl_desc.pins = as3722_pins_desc;
+	as3722_pinctrl_desc.npins = ARRAY_SIZE(as3722_pins_desc);
+	as_pci->pctl = pinctrl_register(&as3722_pinctrl_desc,
+					&pdev->dev, as_pci);
+	if (!as_pci->pctl) {
+		dev_err(&pdev->dev, "Couldn't register pinctrl driver\n");
+		return -EINVAL;
+	}
+
+	as_pci->gpio_chip = as3722_gpio_chip;
+	as_pci->gpio_chip.dev = &pdev->dev;
+	as_pci->gpio_chip.of_node = pdev->dev.parent->of_node;
+	ret = gpiochip_add(&as_pci->gpio_chip);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Couldn't register gpiochip, %d\n", ret);
+		goto fail_chip_add;
+	}
+
+	ret = gpiochip_add_pin_range(&as_pci->gpio_chip, dev_name(&pdev->dev),
+				0, 0, AS3722_PIN_NUM);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Couldn't add pin range, %d\n", ret);
+		goto fail_range_add;
+	}
+
+	return 0;
+
+fail_range_add:
+	tret = gpiochip_remove(&as_pci->gpio_chip);
+	if (tret < 0)
+		dev_warn(&pdev->dev, "Couldn't remove gpio chip, %d\n", tret);
+
+fail_chip_add:
+	pinctrl_unregister(as_pci->pctl);
+	return ret;
+}
+
+static int as3722_pinctrl_remove(struct platform_device *pdev)
+{
+	struct as3722_pctrl_info *as_pci = platform_get_drvdata(pdev);
+	int ret;
+
+	ret = gpiochip_remove(&as_pci->gpio_chip);
+	if (ret < 0)
+		return ret;
+	pinctrl_unregister(as_pci->pctl);
+	return 0;
+}
+
+static struct of_device_id as3722_pinctrl_of_match[] = {
+	{ .compatible = "ams,as3722-pinctrl", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, as3722_pinctrl_of_match);
+
+static struct platform_driver as3722_pinctrl_driver = {
+	.driver = {
+		.name = "as3722-pinctrl",
+		.owner = THIS_MODULE,
+		.of_match_table = as3722_pinctrl_of_match,
+	},
+	.probe = as3722_pinctrl_probe,
+	.remove = as3722_pinctrl_remove,
+};
+module_platform_driver(as3722_pinctrl_driver);
+
+MODULE_ALIAS("platform:as3722-pinctrl");
+MODULE_DESCRIPTION("AS3722 pin control and GPIO driver");
+MODULE_AUTHOR("Laxman Dewangan<ldewangan@nvidia.com>");
+MODULE_LICENSE("GPL v2");
-- 
cgit 


From cebf4cfd8608cbcc941750801217988f0a8fc848 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Thu, 10 Oct 2013 18:06:04 +0200
Subject: Bluetooth: Fix checking for HCI_SETUP flag when receiving mgmt
 commands

When the HCI_SETUP flag is set the controller has not yet been announced
over mgmt and therefore doesn't exist from that perspective. If we
nevertheless get a mgmt command for it we should respond with the
appropriate INVALID_INDEX error.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index e7ffd39100a0..7d25d6dcd79d 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3753,7 +3753,8 @@ int mgmt_control(struct sock *sk, struct msghdr *msg, size_t msglen)
 			goto done;
 		}
 
-		if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
+		if (test_bit(HCI_SETUP, &hdev->dev_flags) ||
+		    test_bit(HCI_USER_CHANNEL, &hdev->dev_flags)) {
 			err = cmd_status(sk, index, opcode,
 					 MGMT_STATUS_INVALID_INDEX);
 			goto done;
-- 
cgit 


From 7854cbca815562a49d50bbc6f31599312853d1f4 Mon Sep 17 00:00:00 2001
From: Arthur Chunqi Li <yzt356@gmail.com>
Date: Mon, 16 Sep 2013 16:11:44 +0800
Subject: KVM: nVMX: Fully support nested VMX preemption timer

This patch contains the following two changes:
1. Fix the bug in nested preemption timer support. If vmexit L2->L0
with some reasons not emulated by L1, preemption timer value should
be save in such exits.
2. Add support of "Save VMX-preemption timer value" VM-Exit controls
to nVMX.

With this patch, nested VMX preemption timer features are fully
supported.

Signed-off-by: Arthur Chunqi Li <yzt356@gmail.com>
Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/include/uapi/asm/msr-index.h |  1 +
 arch/x86/kvm/vmx.c                    | 42 +++++++++++++++++++++++++++++++++--
 2 files changed, 41 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/uapi/asm/msr-index.h b/arch/x86/include/uapi/asm/msr-index.h
index bb0465090ae5..b93e09a0fa21 100644
--- a/arch/x86/include/uapi/asm/msr-index.h
+++ b/arch/x86/include/uapi/asm/msr-index.h
@@ -536,6 +536,7 @@
 
 /* MSR_IA32_VMX_MISC bits */
 #define MSR_IA32_VMX_MISC_VMWRITE_SHADOW_RO_FIELDS (1ULL << 29)
+#define MSR_IA32_VMX_MISC_PREEMPTION_TIMER_SCALE   0x1F
 /* AMD-V MSRs */
 
 #define MSR_VM_CR                       0xc0010114
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 2db91645a6cc..0156560c68a8 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2200,7 +2200,13 @@ static __init void nested_vmx_setup_ctls_msrs(void)
 #ifdef CONFIG_X86_64
 		VM_EXIT_HOST_ADDR_SPACE_SIZE |
 #endif
-		VM_EXIT_LOAD_IA32_PAT | VM_EXIT_SAVE_IA32_PAT;
+		VM_EXIT_LOAD_IA32_PAT | VM_EXIT_SAVE_IA32_PAT |
+		VM_EXIT_SAVE_VMX_PREEMPTION_TIMER;
+	if (!(nested_vmx_pinbased_ctls_high & PIN_BASED_VMX_PREEMPTION_TIMER) ||
+	    !(nested_vmx_exit_ctls_high & VM_EXIT_SAVE_VMX_PREEMPTION_TIMER)) {
+		nested_vmx_exit_ctls_high &= ~VM_EXIT_SAVE_VMX_PREEMPTION_TIMER;
+		nested_vmx_pinbased_ctls_high &= ~PIN_BASED_VMX_PREEMPTION_TIMER;
+	}
 	nested_vmx_exit_ctls_high |= (VM_EXIT_ALWAYSON_WITHOUT_TRUE_MSR |
 		VM_EXIT_LOAD_IA32_EFER | VM_EXIT_SAVE_IA32_EFER);
 
@@ -6724,6 +6730,27 @@ static void vmx_get_exit_info(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2)
 	*info2 = vmcs_read32(VM_EXIT_INTR_INFO);
 }
 
+static void nested_adjust_preemption_timer(struct kvm_vcpu *vcpu)
+{
+	u64 delta_tsc_l1;
+	u32 preempt_val_l1, preempt_val_l2, preempt_scale;
+
+	if (!(get_vmcs12(vcpu)->pin_based_vm_exec_control &
+			PIN_BASED_VMX_PREEMPTION_TIMER))
+		return;
+	preempt_scale = native_read_msr(MSR_IA32_VMX_MISC) &
+			MSR_IA32_VMX_MISC_PREEMPTION_TIMER_SCALE;
+	preempt_val_l2 = vmcs_read32(VMX_PREEMPTION_TIMER_VALUE);
+	delta_tsc_l1 = vmx_read_l1_tsc(vcpu, native_read_tsc())
+		- vcpu->arch.last_guest_tsc;
+	preempt_val_l1 = delta_tsc_l1 >> preempt_scale;
+	if (preempt_val_l2 <= preempt_val_l1)
+		preempt_val_l2 = 0;
+	else
+		preempt_val_l2 -= preempt_val_l1;
+	vmcs_write32(VMX_PREEMPTION_TIMER_VALUE, preempt_val_l2);
+}
+
 /*
  * The guest has exited.  See if we can fix it or if we need userspace
  * assistance.
@@ -7134,6 +7161,8 @@ static void __noclone vmx_vcpu_run(struct kvm_vcpu *vcpu)
 	atomic_switch_perf_msrs(vmx);
 	debugctlmsr = get_debugctlmsr();
 
+	if (is_guest_mode(vcpu) && !vmx->nested.nested_run_pending)
+		nested_adjust_preemption_timer(vcpu);
 	vmx->__launched = vmx->loaded_vmcs->launched;
 	asm(
 		/* Store host registers */
@@ -7543,6 +7572,7 @@ static void prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
 	u32 exec_control;
+	u32 exit_control;
 
 	vmcs_write16(GUEST_ES_SELECTOR, vmcs12->guest_es_selector);
 	vmcs_write16(GUEST_CS_SELECTOR, vmcs12->guest_cs_selector);
@@ -7716,7 +7746,10 @@ static void prepare_vmcs02(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
 	 * we should use its exit controls. Note that VM_EXIT_LOAD_IA32_EFER
 	 * bits are further modified by vmx_set_efer() below.
 	 */
-	vmcs_write32(VM_EXIT_CONTROLS, vmcs_config.vmexit_ctrl);
+	exit_control = vmcs_config.vmexit_ctrl;
+	if (vmcs12->pin_based_vm_exec_control & PIN_BASED_VMX_PREEMPTION_TIMER)
+		exit_control |= VM_EXIT_SAVE_VMX_PREEMPTION_TIMER;
+	vmcs_write32(VM_EXIT_CONTROLS, exit_control);
 
 	/* vmcs12's VM_ENTRY_LOAD_IA32_EFER and VM_ENTRY_IA32E_MODE are
 	 * emulated by vmx_set_efer(), below.
@@ -8124,6 +8157,11 @@ static void prepare_vmcs12(struct kvm_vcpu *vcpu, struct vmcs12 *vmcs12)
 	vmcs12->guest_pending_dbg_exceptions =
 		vmcs_readl(GUEST_PENDING_DBG_EXCEPTIONS);
 
+	if ((vmcs12->pin_based_vm_exec_control & PIN_BASED_VMX_PREEMPTION_TIMER) &&
+	    (vmcs12->vm_exit_controls & VM_EXIT_SAVE_VMX_PREEMPTION_TIMER))
+		vmcs12->vmx_preemption_timer_value =
+			vmcs_read32(VMX_PREEMPTION_TIMER_VALUE);
+
 	/*
 	 * In some cases (usually, nested EPT), L2 is allowed to change its
 	 * own CR3 without exiting. If it has changed it, we must keep it.
-- 
cgit 


From c5340bd14336b902604ab95212a8877de109d9ae Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Thu, 10 Oct 2013 18:26:59 +0200
Subject: usb: musb: cancel work on removal

So I captured this:

|WARNING: CPU: 0 PID: 2078 at /home/bigeasy/work/new/TI/linux/lib/debugobjects.c:260 debug_print_object+0x94/0xc4()
|ODEBUG: free active (active state 0) object type: work_struct hint: musb_irq_work+0x0/0x38 [musb_hdrc]
|CPU: 0 PID: 2078 Comm: rmmod Not tainted 3.12.0-rc4+ #338
|[<c0014d38>] (unwind_backtrace+0x0/0xf4) from [<c001249c>] (show_stack+0x14/0x1c)
|[<c001249c>] (show_stack+0x14/0x1c) from [<c0037720>] (warn_slowpath_common+0x64/0x84)
|[<c0037720>] (warn_slowpath_common+0x64/0x84) from [<c00377d4>] (warn_slowpath_fmt+0x30/0x40)
|[<c00377d4>] (warn_slowpath_fmt+0x30/0x40) from [<c022ae90>] (debug_print_object+0x94/0xc4)
|[<c022ae90>] (debug_print_object+0x94/0xc4) from [<c022b7e0>] (debug_check_no_obj_freed+0x1c0/0x228)
|[<c022b7e0>] (debug_check_no_obj_freed+0x1c0/0x228) from [<c00f1f38>] (kfree+0xf8/0x228)
|[<c00f1f38>] (kfree+0xf8/0x228) from [<c02921c4>] (release_nodes+0x1a8/0x248)
|[<c02921c4>] (release_nodes+0x1a8/0x248) from [<c028f70c>] (__device_release_driver+0x98/0xf0)
|[<c028f70c>] (__device_release_driver+0x98/0xf0) from [<c028f840>] (device_release_driver+0x24/0x34)
|[<c028f840>] (device_release_driver+0x24/0x34) from [<c028ebe8>] (bus_remove_device+0x148/0x15c)
|[<c028ebe8>] (bus_remove_device+0x148/0x15c) from [<c028d120>] (device_del+0x104/0x1c0)
|[<c028d120>] (device_del+0x104/0x1c0) from [<c02911e4>] (platform_device_del+0x18/0xac)
|[<c02911e4>] (platform_device_del+0x18/0xac) from [<c029179c>] (platform_device_unregister+0xc/0x18)
|[<c029179c>] (platform_device_unregister+0xc/0x18) from [<bf1902fc>] (dsps_remove+0x20/0x4c [musb_dsps])
|[<bf1902fc>] (dsps_remove+0x20/0x4c [musb_dsps]) from [<c0290d7c>] (platform_drv_remove+0x1c/0x24)
|[<c0290d7c>] (platform_drv_remove+0x1c/0x24) from [<c028f704>] (__device_release_driver+0x90/0xf0)
|[<c028f704>] (__device_release_driver+0x90/0xf0) from [<c028f818>] (driver_detach+0xb4/0xb8)
|[<c028f818>] (driver_detach+0xb4/0xb8) from [<c028e6e8>] (bus_remove_driver+0x98/0xec)
|[<c028e6e8>] (bus_remove_driver+0x98/0xec) from [<c008fc70>] (SyS_delete_module+0x1e0/0x24c)
|[<c008fc70>] (SyS_delete_module+0x1e0/0x24c) from [<c000e680>] (ret_fast_syscall+0x0/0x48)
|---[ end trace d79045419a3e51ec ]---

The workqueue is only scheduled from the ep0 and never canceled in case
the musb is removed before the work has a chance to run.

Cc: stable@vger.kernel.org
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/musb/musb_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 18e877ffe7b7..5b4fa79a277b 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1763,6 +1763,7 @@ static void musb_free(struct musb *musb)
 			disable_irq_wake(musb->nIrq);
 		free_irq(musb->nIrq, musb);
 	}
+	cancel_work_sync(&musb->irq_work);
 	if (musb->dma_controller)
 		dma_controller_destroy(musb->dma_controller);
 
-- 
cgit 


From 5578b266e9ae05391d53b446acf23818256ff13f Mon Sep 17 00:00:00 2001
From: Valentine Barshak <valentine.barshak@cogentembedded.com>
Date: Thu, 10 Oct 2013 20:35:17 +0400
Subject: usb: phy: Add RCAR Gen2 USB phy

This adds RCAR Gen2 USB phy support. The driver configures
USB channels 0/2 which are shared between PCI USB hosts and
USBHS/USBSS devices. It also controls internal USBHS phy.

Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/phy/Kconfig                         |  13 ++
 drivers/usb/phy/Makefile                        |   1 +
 drivers/usb/phy/phy-rcar-gen2-usb.c             | 248 ++++++++++++++++++++++++
 include/linux/platform_data/usb-rcar-gen2-phy.h |  22 +++
 4 files changed, 284 insertions(+)
 create mode 100644 drivers/usb/phy/phy-rcar-gen2-usb.c
 create mode 100644 include/linux/platform_data/usb-rcar-gen2-phy.h

diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
index d5589f9c60a9..c0c8cd37648e 100644
--- a/drivers/usb/phy/Kconfig
+++ b/drivers/usb/phy/Kconfig
@@ -214,6 +214,19 @@ config USB_RCAR_PHY
 	  To compile this driver as a module, choose M here: the
 	  module will be called phy-rcar-usb.
 
+config USB_RCAR_GEN2_PHY
+	tristate "Renesas R-Car Gen2 USB PHY support"
+	depends on ARCH_R8A7790 || ARCH_R8A7791 || COMPILE_TEST
+	select USB_PHY
+	help
+	  Say Y here to add support for the Renesas R-Car Gen2 USB PHY driver.
+	  It is typically used to control internal USB PHY for USBHS,
+	  and to configure shared USB channels 0 and 2.
+	  This driver supports R8A7790 and R8A7791.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called phy-rcar-gen2-usb.
+
 config USB_ULPI
 	bool "Generic ULPI Transceiver Driver"
 	depends on ARM
diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile
index 2135e85f46ed..8c5b14764b72 100644
--- a/drivers/usb/phy/Makefile
+++ b/drivers/usb/phy/Makefile
@@ -29,5 +29,6 @@ obj-$(CONFIG_USB_MSM_OTG)		+= phy-msm-usb.o
 obj-$(CONFIG_USB_MV_OTG)		+= phy-mv-usb.o
 obj-$(CONFIG_USB_MXS_PHY)		+= phy-mxs-usb.o
 obj-$(CONFIG_USB_RCAR_PHY)		+= phy-rcar-usb.o
+obj-$(CONFIG_USB_RCAR_GEN2_PHY)		+= phy-rcar-gen2-usb.o
 obj-$(CONFIG_USB_ULPI)			+= phy-ulpi.o
 obj-$(CONFIG_USB_ULPI_VIEWPORT)		+= phy-ulpi-viewport.o
diff --git a/drivers/usb/phy/phy-rcar-gen2-usb.c b/drivers/usb/phy/phy-rcar-gen2-usb.c
new file mode 100644
index 000000000000..a99a6953f11c
--- /dev/null
+++ b/drivers/usb/phy/phy-rcar-gen2-usb.c
@@ -0,0 +1,248 @@
+/*
+ * Renesas R-Car Gen2 USB phy driver
+ *
+ * Copyright (C) 2013 Renesas Solutions Corp.
+ * Copyright (C) 2013 Cogent Embedded, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_data/usb-rcar-gen2-phy.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/usb/otg.h>
+
+struct rcar_gen2_usb_phy_priv {
+	struct usb_phy phy;
+	void __iomem *base;
+	struct clk *clk;
+	spinlock_t lock;
+	int usecount;
+	u32 ugctrl2;
+};
+
+#define usb_phy_to_priv(p) container_of(p, struct rcar_gen2_usb_phy_priv, phy)
+
+/* Low Power Status register */
+#define USBHS_LPSTS_REG			0x02
+#define USBHS_LPSTS_SUSPM		(1 << 14)
+
+/* USB General control register */
+#define USBHS_UGCTRL_REG		0x80
+#define USBHS_UGCTRL_CONNECT		(1 << 2)
+#define USBHS_UGCTRL_PLLRESET		(1 << 0)
+
+/* USB General control register 2 */
+#define USBHS_UGCTRL2_REG		0x84
+#define USBHS_UGCTRL2_USB0_PCI		(1 << 4)
+#define USBHS_UGCTRL2_USB0_HS		(3 << 4)
+#define USBHS_UGCTRL2_USB2_PCI		(0 << 31)
+#define USBHS_UGCTRL2_USB2_SS		(1 << 31)
+
+/* USB General status register */
+#define USBHS_UGSTS_REG			0x88
+#define USBHS_UGSTS_LOCK		(3 << 8)
+
+/* Enable USBHS internal phy */
+static int __rcar_gen2_usbhs_phy_enable(void __iomem *base)
+{
+	u32 val;
+	int i;
+
+	/* USBHS PHY power on */
+	val = ioread32(base + USBHS_UGCTRL_REG);
+	val &= ~USBHS_UGCTRL_PLLRESET;
+	iowrite32(val, base + USBHS_UGCTRL_REG);
+
+	val = ioread16(base + USBHS_LPSTS_REG);
+	val |= USBHS_LPSTS_SUSPM;
+	iowrite16(val, base + USBHS_LPSTS_REG);
+
+	for (i = 0; i < 20; i++) {
+		val = ioread32(base + USBHS_UGSTS_REG);
+		if ((val & USBHS_UGSTS_LOCK) == USBHS_UGSTS_LOCK) {
+			val = ioread32(base + USBHS_UGCTRL_REG);
+			val |= USBHS_UGCTRL_CONNECT;
+			iowrite32(val, base + USBHS_UGCTRL_REG);
+			return 0;
+		}
+		udelay(1);
+	}
+
+	/* Timed out waiting for the PLL lock */
+	return -ETIMEDOUT;
+}
+
+/* Disable USBHS internal phy */
+static int __rcar_gen2_usbhs_phy_disable(void __iomem *base)
+{
+	u32 val;
+
+	/* USBHS PHY power off */
+	val = ioread32(base + USBHS_UGCTRL_REG);
+	val &= ~USBHS_UGCTRL_CONNECT;
+	iowrite32(val, base + USBHS_UGCTRL_REG);
+
+	val = ioread16(base + USBHS_LPSTS_REG);
+	val &= ~USBHS_LPSTS_SUSPM;
+	iowrite16(val, base + USBHS_LPSTS_REG);
+
+	val = ioread32(base + USBHS_UGCTRL_REG);
+	val |= USBHS_UGCTRL_PLLRESET;
+	iowrite32(val, base + USBHS_UGCTRL_REG);
+	return 0;
+}
+
+/* Setup USB channels */
+static void __rcar_gen2_usb_phy_init(struct rcar_gen2_usb_phy_priv *priv)
+{
+	u32 val;
+
+	clk_prepare_enable(priv->clk);
+
+	/* Set USB channels in the USBHS UGCTRL2 register */
+	val = ioread32(priv->base);
+	val &= ~(USBHS_UGCTRL2_USB0_HS | USBHS_UGCTRL2_USB2_SS);
+	val |= priv->ugctrl2;
+	iowrite32(val, priv->base);
+}
+
+/* Shutdown USB channels */
+static void __rcar_gen2_usb_phy_shutdown(struct rcar_gen2_usb_phy_priv *priv)
+{
+	__rcar_gen2_usbhs_phy_disable(priv->base);
+	clk_disable_unprepare(priv->clk);
+}
+
+static int rcar_gen2_usb_phy_set_suspend(struct usb_phy *phy, int suspend)
+{
+	struct rcar_gen2_usb_phy_priv *priv = usb_phy_to_priv(phy);
+	unsigned long flags;
+	int retval;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	retval = suspend ? __rcar_gen2_usbhs_phy_disable(priv->base) :
+			   __rcar_gen2_usbhs_phy_enable(priv->base);
+	spin_unlock_irqrestore(&priv->lock, flags);
+	return retval;
+}
+
+static int rcar_gen2_usb_phy_init(struct usb_phy *phy)
+{
+	struct rcar_gen2_usb_phy_priv *priv = usb_phy_to_priv(phy);
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	/*
+	 * Enable the clock and setup USB channels
+	 * if it's the first user
+	 */
+	if (!priv->usecount++)
+		__rcar_gen2_usb_phy_init(priv);
+	spin_unlock_irqrestore(&priv->lock, flags);
+	return 0;
+}
+
+static void rcar_gen2_usb_phy_shutdown(struct usb_phy *phy)
+{
+	struct rcar_gen2_usb_phy_priv *priv = usb_phy_to_priv(phy);
+	unsigned long flags;
+
+	spin_lock_irqsave(&priv->lock, flags);
+	if (!priv->usecount) {
+		dev_warn(phy->dev, "Trying to disable phy with 0 usecount\n");
+		goto out;
+	}
+
+	/* Disable everything if it's the last user */
+	if (!--priv->usecount)
+		__rcar_gen2_usb_phy_shutdown(priv);
+out:
+	spin_unlock_irqrestore(&priv->lock, flags);
+}
+
+static int rcar_gen2_usb_phy_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct rcar_gen2_phy_platform_data *pdata;
+	struct rcar_gen2_usb_phy_priv *priv;
+	struct resource *res;
+	void __iomem *base;
+	struct clk *clk;
+	int retval;
+
+	pdata = dev_get_platdata(&pdev->dev);
+	if (!pdata) {
+		dev_err(dev, "No platform data\n");
+		return -EINVAL;
+	}
+
+	clk = devm_clk_get(&pdev->dev, "usbhs");
+	if (IS_ERR(clk)) {
+		dev_err(&pdev->dev, "Can't get the clock\n");
+		return PTR_ERR(clk);
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv) {
+		dev_err(dev, "Memory allocation failed\n");
+		return -ENOMEM;
+	}
+
+	spin_lock_init(&priv->lock);
+	priv->clk = clk;
+	priv->base = base;
+	priv->ugctrl2 = pdata->chan0_pci ?
+			USBHS_UGCTRL2_USB0_PCI : USBHS_UGCTRL2_USB0_HS;
+	priv->ugctrl2 |= pdata->chan2_pci ?
+			USBHS_UGCTRL2_USB2_PCI : USBHS_UGCTRL2_USB2_SS;
+	priv->phy.dev = dev;
+	priv->phy.label = dev_name(dev);
+	priv->phy.init = rcar_gen2_usb_phy_init;
+	priv->phy.shutdown = rcar_gen2_usb_phy_shutdown;
+	priv->phy.set_suspend = rcar_gen2_usb_phy_set_suspend;
+
+	retval = usb_add_phy(&priv->phy, USB_PHY_TYPE_USB2);
+	if (retval < 0) {
+		dev_err(dev, "Failed to add USB phy\n");
+		return retval;
+	}
+
+	platform_set_drvdata(pdev, priv);
+
+	return retval;
+}
+
+static int rcar_gen2_usb_phy_remove(struct platform_device *pdev)
+{
+	struct rcar_gen2_usb_phy_priv *priv = platform_get_drvdata(pdev);
+
+	usb_remove_phy(&priv->phy);
+
+	return 0;
+}
+
+static struct platform_driver rcar_gen2_usb_phy_driver = {
+	.driver = {
+		.name = "usb_phy_rcar_gen2",
+	},
+	.probe = rcar_gen2_usb_phy_probe,
+	.remove = rcar_gen2_usb_phy_remove,
+};
+
+module_platform_driver(rcar_gen2_usb_phy_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Renesas R-Car Gen2 USB phy");
+MODULE_AUTHOR("Valentine Barshak <valentine.barshak@cogentembedded.com>");
diff --git a/include/linux/platform_data/usb-rcar-gen2-phy.h b/include/linux/platform_data/usb-rcar-gen2-phy.h
new file mode 100644
index 000000000000..dd3ba46c0d90
--- /dev/null
+++ b/include/linux/platform_data/usb-rcar-gen2-phy.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2013 Renesas Solutions Corp.
+ * Copyright (C) 2013 Cogent Embedded, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __USB_RCAR_GEN2_PHY_H
+#define __USB_RCAR_GEN2_PHY_H
+
+#include <linux/types.h>
+
+struct rcar_gen2_phy_platform_data {
+	/* USB channel 0 configuration */
+	bool chan0_pci:1;	/* true: PCI USB host 0, false: USBHS */
+	/* USB channel 2 configuration */
+	bool chan2_pci:1;	/* true: PCI USB host 2, false: USBSS */
+};
+
+#endif
-- 
cgit 


From 5523e4092ee4f2ef58d00c78365c8bddf730c900 Mon Sep 17 00:00:00 2001
From: R Sricharan <r.sricharan@ti.com>
Date: Thu, 10 Oct 2013 13:13:48 +0530
Subject: ARM: OMAP5/DRA7: realtime_counter: Configure CNTFRQ register

The realtime counter called master counter, produces the count
used by the private timer peripherals in the MPU_CLUSTER. The
CNTFRQ per cpu register is used to denote the frequency of the counter.
Currently the frequency value is passed from the
DT file, but this is not scalable when we have other non-DT guest
OS. This register must be set to the right value by the
secure rom code. Setting this register helps in propagating the right
frequency value across OSes.

More discussions and the reason for adding this in a non-DT
way can be seen from below.
http://www.mail-archive.com/linux-omap@vger.kernel.org/msg93832.html

So configuring this secure register for all the cpus here.

Cc: Nishanth Menon <nm@ti.com>
Cc: Rajendra Nayak <rnayak@ti.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Tested-by: Nishanth Menon <nm@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Sricharan R <r.sricharan@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/omap-secure.h |  4 ++++
 arch/arm/mach-omap2/omap-smp.c    |  7 +++++++
 arch/arm/mach-omap2/timer.c       | 10 ++++++++++
 3 files changed, 21 insertions(+)

diff --git a/arch/arm/mach-omap2/omap-secure.h b/arch/arm/mach-omap2/omap-secure.h
index 0e729170c46b..a5ee09d20ac9 100644
--- a/arch/arm/mach-omap2/omap-secure.h
+++ b/arch/arm/mach-omap2/omap-secure.h
@@ -42,6 +42,8 @@
 #define OMAP4_MON_L2X0_AUXCTRL_INDEX	0x109
 #define OMAP4_MON_L2X0_PREFETCH_INDEX	0x113
 
+#define OMAP5_DRA7_MON_SET_CNTFRQ_INDEX	0x109
+
 /* Secure PPA(Primary Protected Application) APIs */
 #define OMAP4_PPA_L2_POR_INDEX		0x23
 #define OMAP4_PPA_CPU_ACTRL_SMP_INDEX	0x25
@@ -60,5 +62,7 @@ extern int omap_barrier_reserve_memblock(void);
 static inline void omap_barrier_reserve_memblock(void)
 { }
 #endif
+
+void set_cntfreq(void);
 #endif /* __ASSEMBLER__ */
 #endif /* OMAP_ARCH_OMAP_SECURE_H */
diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c
index 891211093295..75e95d4fb448 100644
--- a/arch/arm/mach-omap2/omap-smp.c
+++ b/arch/arm/mach-omap2/omap-smp.c
@@ -65,6 +65,13 @@ static void omap4_secondary_init(unsigned int cpu)
 		omap_secure_dispatcher(OMAP4_PPA_CPU_ACTRL_SMP_INDEX,
 							4, 0, 0, 0, 0, 0);
 
+	/*
+	 * Configure the CNTFRQ register for the secondary cpu's which
+	 * indicates the frequency of the cpu local timers.
+	 */
+	if (soc_is_omap54xx() || soc_is_dra7xx())
+		set_cntfreq();
+
 	/*
 	 * Synchronise with the boot thread.
 	 */
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index d0f80c020423..87259dc82aa2 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -55,6 +55,7 @@
 #include "soc.h"
 #include "common.h"
 #include "powerdomain.h"
+#include "omap-secure.h"
 
 #define REALTIME_COUNTER_BASE				0x48243200
 #define INCREMENTER_NUMERATOR_OFFSET			0x10
@@ -65,6 +66,12 @@
 
 static struct omap_dm_timer clkev;
 static struct clock_event_device clockevent_gpt;
+static unsigned long arch_timer_freq;
+
+void set_cntfreq(void)
+{
+	omap_smc1(OMAP5_DRA7_MON_SET_CNTFRQ_INDEX, arch_timer_freq);
+}
 
 static irqreturn_t omap2_gp_timer_interrupt(int irq, void *dev_id)
 {
@@ -546,6 +553,9 @@ static void __init realtime_counter_init(void)
 	reg |= den;
 	__raw_writel(reg, base + INCREMENTER_DENUMERATOR_RELOAD_OFFSET);
 
+	arch_timer_freq = (rate / den) * num;
+	set_cntfreq();
+
 	iounmap(base);
 }
 #else
-- 
cgit 


From c856197d6e93907c0493bfecb4eb621318028e26 Mon Sep 17 00:00:00 2001
From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Sun, 22 Sep 2013 00:27:43 +0200
Subject: mwifiex: Change variable type to bool

The variables cancel_scan_cmd, enable_data, hs_activate and valid are
only assigned the values true and false. Change its type to bool.

The simplified semantic patch that find this problem is as
follows (http://coccinelle.lip6.fr/):

@exists@
type T;
identifier b;
@@
- T
+ bool
  b = ...;
  ... when any
  b = \(true\|false\)

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Acked-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/mwifiex/cmdevt.c  | 2 +-
 drivers/net/wireless/mwifiex/join.c    | 2 +-
 drivers/net/wireless/mwifiex/sta_cmd.c | 2 +-
 drivers/net/wireless/mwifiex/wmm.c     | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/mwifiex/cmdevt.c b/drivers/net/wireless/mwifiex/cmdevt.c
index 2d761477d15e..fb3fa18390b8 100644
--- a/drivers/net/wireless/mwifiex/cmdevt.c
+++ b/drivers/net/wireless/mwifiex/cmdevt.c
@@ -1048,7 +1048,7 @@ mwifiex_cancel_pending_ioctl(struct mwifiex_adapter *adapter)
 	struct cmd_ctrl_node *cmd_node = NULL, *tmp_node = NULL;
 	unsigned long cmd_flags;
 	unsigned long scan_pending_q_flags;
-	uint16_t cancel_scan_cmd = false;
+	bool cancel_scan_cmd = false;
 
 	if ((adapter->curr_cmd) &&
 	    (adapter->curr_cmd->wait_q_enabled)) {
diff --git a/drivers/net/wireless/mwifiex/join.c b/drivers/net/wireless/mwifiex/join.c
index 9d7c0e6c4fc7..717fbe2e0e5a 100644
--- a/drivers/net/wireless/mwifiex/join.c
+++ b/drivers/net/wireless/mwifiex/join.c
@@ -621,7 +621,7 @@ int mwifiex_ret_802_11_associate(struct mwifiex_private *priv,
 	int ret = 0;
 	struct ieee_types_assoc_rsp *assoc_rsp;
 	struct mwifiex_bssdescriptor *bss_desc;
-	u8 enable_data = true;
+	bool enable_data = true;
 	u16 cap_info, status_code;
 
 	assoc_rsp = (struct ieee_types_assoc_rsp *) &resp->params;
diff --git a/drivers/net/wireless/mwifiex/sta_cmd.c b/drivers/net/wireless/mwifiex/sta_cmd.c
index c0268b597748..7d66018a2e33 100644
--- a/drivers/net/wireless/mwifiex/sta_cmd.c
+++ b/drivers/net/wireless/mwifiex/sta_cmd.c
@@ -327,7 +327,7 @@ mwifiex_cmd_802_11_hs_cfg(struct mwifiex_private *priv,
 {
 	struct mwifiex_adapter *adapter = priv->adapter;
 	struct host_cmd_ds_802_11_hs_cfg_enh *hs_cfg = &cmd->params.opt_hs_cfg;
-	u16 hs_activate = false;
+	bool hs_activate = false;
 
 	if (!hscfg_param)
 		/* New Activate command */
diff --git a/drivers/net/wireless/mwifiex/wmm.c b/drivers/net/wireless/mwifiex/wmm.c
index 2e8f9cdea54d..8f8fea015cb4 100644
--- a/drivers/net/wireless/mwifiex/wmm.c
+++ b/drivers/net/wireless/mwifiex/wmm.c
@@ -708,7 +708,7 @@ int mwifiex_ret_wmm_get_status(struct mwifiex_private *priv,
 {
 	u8 *curr = (u8 *) &resp->params.get_wmm_status;
 	uint16_t resp_len = le16_to_cpu(resp->size), tlv_len;
-	int valid = true;
+	bool valid = true;
 
 	struct mwifiex_ie_types_data *tlv_hdr;
 	struct mwifiex_ie_types_wmm_queue_status *tlv_wmm_qstatus;
-- 
cgit 


From 8e84c25821698bdef73c0329fb2022a4673b7adc Mon Sep 17 00:00:00 2001
From: Eugene Krasnikov <k.eugene.e@gmail.com>
Date: Tue, 8 Oct 2013 21:25:58 +0100
Subject: wcn36xx: mac80211 driver for Qualcomm WCN3660/WCN3680 hardware

This is a mac80211 driver for Qualcomm WCN3660/WCN3680 devices. So
far WCN3660/WCN3680 is available only on MSM platform.

Firmware can be found here:
https://www.codeaurora.org/cgit/external/hisense/platform/vendor/qcom-opensource/wlan/prima/tree/firmware_bin?h=8130_CS

Wiki page is available here:
http://wireless.kernel.org/en/users/Drivers/wcn36xx

A lot people made a contribution to this driver. Here is the list in
alphabetical order:

Eugene Krasnikov <k.eugene.e@gmail.com>
Kalle Valo <kvalo@qca.qualcomm.com>
Olof Johansson <dev@skyshaper.net>
Pontus Fuchs <pontus.fuchs@gmail.com>
Yanbo Li <yanbol@qti.qualcomm.com>

Signed-off-by: Eugene Krasnikov <k.eugene.e@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 MAINTAINERS                                |    8 +
 drivers/net/wireless/ath/Kconfig           |    1 +
 drivers/net/wireless/ath/Makefile          |    1 +
 drivers/net/wireless/ath/wcn36xx/Kconfig   |   16 +
 drivers/net/wireless/ath/wcn36xx/Makefile  |    7 +
 drivers/net/wireless/ath/wcn36xx/debug.c   |  188 ++
 drivers/net/wireless/ath/wcn36xx/debug.h   |   49 +
 drivers/net/wireless/ath/wcn36xx/dxe.c     |  805 +++++
 drivers/net/wireless/ath/wcn36xx/dxe.h     |  284 ++
 drivers/net/wireless/ath/wcn36xx/hal.h     | 4657 ++++++++++++++++++++++++++++
 drivers/net/wireless/ath/wcn36xx/main.c    | 1036 +++++++
 drivers/net/wireless/ath/wcn36xx/pmc.c     |   62 +
 drivers/net/wireless/ath/wcn36xx/pmc.h     |   33 +
 drivers/net/wireless/ath/wcn36xx/smd.c     | 2126 +++++++++++++
 drivers/net/wireless/ath/wcn36xx/smd.h     |  127 +
 drivers/net/wireless/ath/wcn36xx/txrx.c    |  284 ++
 drivers/net/wireless/ath/wcn36xx/txrx.h    |  160 +
 drivers/net/wireless/ath/wcn36xx/wcn36xx.h |  238 ++
 18 files changed, 10082 insertions(+)
 create mode 100644 drivers/net/wireless/ath/wcn36xx/Kconfig
 create mode 100644 drivers/net/wireless/ath/wcn36xx/Makefile
 create mode 100644 drivers/net/wireless/ath/wcn36xx/debug.c
 create mode 100644 drivers/net/wireless/ath/wcn36xx/debug.h
 create mode 100644 drivers/net/wireless/ath/wcn36xx/dxe.c
 create mode 100644 drivers/net/wireless/ath/wcn36xx/dxe.h
 create mode 100644 drivers/net/wireless/ath/wcn36xx/hal.h
 create mode 100644 drivers/net/wireless/ath/wcn36xx/main.c
 create mode 100644 drivers/net/wireless/ath/wcn36xx/pmc.c
 create mode 100644 drivers/net/wireless/ath/wcn36xx/pmc.h
 create mode 100644 drivers/net/wireless/ath/wcn36xx/smd.c
 create mode 100644 drivers/net/wireless/ath/wcn36xx/smd.h
 create mode 100644 drivers/net/wireless/ath/wcn36xx/txrx.c
 create mode 100644 drivers/net/wireless/ath/wcn36xx/txrx.h
 create mode 100644 drivers/net/wireless/ath/wcn36xx/wcn36xx.h

diff --git a/MAINTAINERS b/MAINTAINERS
index e61c2e83fc2b..da6cf1676f2c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6816,6 +6816,14 @@ L:	linux-hexagon@vger.kernel.org
 S:	Supported
 F:	arch/hexagon/
 
+QUALCOMM WCN36XX WIRELESS DRIVER
+M:	Eugene Krasnikov <k.eugene.e@gmail.com>
+L:	wcn36xx@lists.infradead.org
+W:	http://wireless.kernel.org/en/users/Drivers/wcn36xx
+T:	git git://github.com/KrasnikovEugene/wcn36xx.git
+S:	Supported
+F:	drivers/net/wireless/ath/wcn36xx/
+
 QUICKCAM PARALLEL PORT WEBCAMS
 M:	Hans Verkuil <hverkuil@xs4all.nl>
 L:	linux-media@vger.kernel.org
diff --git a/drivers/net/wireless/ath/Kconfig b/drivers/net/wireless/ath/Kconfig
index 1abf1d421173..ba81d6292eeb 100644
--- a/drivers/net/wireless/ath/Kconfig
+++ b/drivers/net/wireless/ath/Kconfig
@@ -32,5 +32,6 @@ source "drivers/net/wireless/ath/ath6kl/Kconfig"
 source "drivers/net/wireless/ath/ar5523/Kconfig"
 source "drivers/net/wireless/ath/wil6210/Kconfig"
 source "drivers/net/wireless/ath/ath10k/Kconfig"
+source "drivers/net/wireless/ath/wcn36xx/Kconfig"
 
 endif
diff --git a/drivers/net/wireless/ath/Makefile b/drivers/net/wireless/ath/Makefile
index fb05cfd19361..363b05653c7e 100644
--- a/drivers/net/wireless/ath/Makefile
+++ b/drivers/net/wireless/ath/Makefile
@@ -5,6 +5,7 @@ obj-$(CONFIG_ATH6KL)		+= ath6kl/
 obj-$(CONFIG_AR5523)		+= ar5523/
 obj-$(CONFIG_WIL6210)		+= wil6210/
 obj-$(CONFIG_ATH10K)		+= ath10k/
+obj-$(CONFIG_WCN36XX)		+= wcn36xx/
 
 obj-$(CONFIG_ATH_COMMON)	+= ath.o
 
diff --git a/drivers/net/wireless/ath/wcn36xx/Kconfig b/drivers/net/wireless/ath/wcn36xx/Kconfig
new file mode 100644
index 000000000000..591ebaea8265
--- /dev/null
+++ b/drivers/net/wireless/ath/wcn36xx/Kconfig
@@ -0,0 +1,16 @@
+config WCN36XX
+	tristate "Qualcomm Atheros WCN3660/3680 support"
+	depends on MAC80211 && HAS_DMA
+	---help---
+	  This module adds support for wireless adapters based on
+	  Qualcomm Atheros WCN3660 and WCN3680 mobile chipsets.
+
+	  If you choose to build a module, it'll be called wcn36xx.
+
+config WCN36XX_DEBUGFS
+	bool "WCN36XX debugfs support"
+	depends on WCN36XX
+	---help---
+	  Enabled debugfs support
+
+	  If unsure, say Y to make it easier to debug problems.
diff --git a/drivers/net/wireless/ath/wcn36xx/Makefile b/drivers/net/wireless/ath/wcn36xx/Makefile
new file mode 100644
index 000000000000..50c43b4382ba
--- /dev/null
+++ b/drivers/net/wireless/ath/wcn36xx/Makefile
@@ -0,0 +1,7 @@
+obj-$(CONFIG_WCN36XX) := wcn36xx.o
+wcn36xx-y +=   main.o \
+               dxe.o \
+               txrx.o \
+               smd.o \
+               pmc.o \
+               debug.o
diff --git a/drivers/net/wireless/ath/wcn36xx/debug.c b/drivers/net/wireless/ath/wcn36xx/debug.c
new file mode 100644
index 000000000000..682bcd650f70
--- /dev/null
+++ b/drivers/net/wireless/ath/wcn36xx/debug.c
@@ -0,0 +1,188 @@
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/debugfs.h>
+#include <linux/uaccess.h>
+#include "wcn36xx.h"
+#include "debug.h"
+#include "pmc.h"
+
+#ifdef CONFIG_WCN36XX_DEBUGFS
+
+static int wcn36xx_debugfs_open(struct inode *inode, struct file *file)
+{
+	file->private_data = inode->i_private;
+
+	return 0;
+}
+
+static ssize_t read_file_bool_bmps(struct file *file, char __user *user_buf,
+				   size_t count, loff_t *ppos)
+{
+	struct wcn36xx *wcn = file->private_data;
+	struct wcn36xx_vif *vif_priv = NULL;
+	struct ieee80211_vif *vif = NULL;
+	char buf[3];
+
+	list_for_each_entry(vif_priv, &wcn->vif_list, list) {
+			vif = container_of((void *)vif_priv,
+				   struct ieee80211_vif,
+				   drv_priv);
+			if (NL80211_IFTYPE_STATION == vif->type) {
+				if (vif_priv->pw_state == WCN36XX_BMPS)
+					buf[0] = '1';
+				else
+					buf[0] = '0';
+				break;
+			}
+	}
+	buf[1] = '\n';
+	buf[2] = 0x00;
+
+	return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
+}
+
+static ssize_t write_file_bool_bmps(struct file *file,
+				    const char __user *user_buf,
+				    size_t count, loff_t *ppos)
+{
+	struct wcn36xx *wcn = file->private_data;
+	struct wcn36xx_vif *vif_priv = NULL;
+	struct ieee80211_vif *vif = NULL;
+
+	char buf[32];
+	int buf_size;
+
+	buf_size = min(count, (sizeof(buf)-1));
+	if (copy_from_user(buf, user_buf, buf_size))
+		return -EFAULT;
+
+	switch (buf[0]) {
+	case 'y':
+	case 'Y':
+	case '1':
+		list_for_each_entry(vif_priv, &wcn->vif_list, list) {
+			vif = container_of((void *)vif_priv,
+				   struct ieee80211_vif,
+				   drv_priv);
+			if (NL80211_IFTYPE_STATION == vif->type) {
+				wcn36xx_enable_keep_alive_null_packet(wcn, vif);
+				wcn36xx_pmc_enter_bmps_state(wcn, vif);
+			}
+		}
+		break;
+	case 'n':
+	case 'N':
+	case '0':
+		list_for_each_entry(vif_priv, &wcn->vif_list, list) {
+			vif = container_of((void *)vif_priv,
+				   struct ieee80211_vif,
+				   drv_priv);
+			if (NL80211_IFTYPE_STATION == vif->type)
+				wcn36xx_pmc_exit_bmps_state(wcn, vif);
+		}
+		break;
+	}
+
+	return count;
+}
+
+static const struct file_operations fops_wcn36xx_bmps = {
+	.open  =       wcn36xx_debugfs_open,
+	.read  =       read_file_bool_bmps,
+	.write =       write_file_bool_bmps,
+};
+
+static ssize_t write_file_dump(struct file *file,
+				    const char __user *user_buf,
+				    size_t count, loff_t *ppos)
+{
+	struct wcn36xx *wcn = file->private_data;
+	char buf[255], *tmp;
+	int buf_size;
+	u32 arg[WCN36xx_MAX_DUMP_ARGS];
+	int i;
+
+	memset(buf, 0, sizeof(buf));
+	memset(arg, 0, sizeof(arg));
+
+	buf_size = min(count, (sizeof(buf) - 1));
+	if (copy_from_user(buf, user_buf, buf_size))
+		return -EFAULT;
+
+	tmp = buf;
+
+	for (i = 0; i < WCN36xx_MAX_DUMP_ARGS; i++) {
+		char *begin;
+		begin = strsep(&tmp, " ");
+		if (begin == NULL)
+			break;
+
+		if (kstrtoul(begin, 0, (unsigned long *)(arg + i)) != 0)
+			break;
+	}
+
+	wcn36xx_info("DUMP args is %d %d %d %d %d\n", arg[0], arg[1], arg[2],
+		     arg[3], arg[4]);
+	wcn36xx_smd_dump_cmd_req(wcn, arg[0], arg[1], arg[2], arg[3], arg[4]);
+
+	return count;
+}
+
+static const struct file_operations fops_wcn36xx_dump = {
+	.open  =       wcn36xx_debugfs_open,
+	.write =       write_file_dump,
+};
+
+#define ADD_FILE(name, mode, fop, priv_data)		\
+	do {							\
+		struct dentry *d;				\
+		d = debugfs_create_file(__stringify(name),	\
+					mode, dfs->rootdir,	\
+					priv_data, fop);	\
+		dfs->file_##name.dentry = d;			\
+		if (IS_ERR(d)) {				\
+			wcn36xx_warn("Create the debugfs entry failed");\
+			dfs->file_##name.dentry = NULL;		\
+		}						\
+	} while (0)
+
+
+void wcn36xx_debugfs_init(struct wcn36xx *wcn)
+{
+	struct wcn36xx_dfs_entry *dfs = &wcn->dfs;
+
+	dfs->rootdir = debugfs_create_dir(KBUILD_MODNAME,
+					  wcn->hw->wiphy->debugfsdir);
+	if (IS_ERR(dfs->rootdir)) {
+		wcn36xx_warn("Create the debugfs failed\n");
+		dfs->rootdir = NULL;
+	}
+
+	ADD_FILE(bmps_switcher, S_IRUSR | S_IWUSR,
+		 &fops_wcn36xx_bmps, wcn);
+	ADD_FILE(dump, S_IWUSR, &fops_wcn36xx_dump, wcn);
+}
+
+void wcn36xx_debugfs_exit(struct wcn36xx *wcn)
+{
+	struct wcn36xx_dfs_entry *dfs = &wcn->dfs;
+	debugfs_remove_recursive(dfs->rootdir);
+}
+
+#endif /* CONFIG_WCN36XX_DEBUGFS */
diff --git a/drivers/net/wireless/ath/wcn36xx/debug.h b/drivers/net/wireless/ath/wcn36xx/debug.h
new file mode 100644
index 000000000000..46307aa562d3
--- /dev/null
+++ b/drivers/net/wireless/ath/wcn36xx/debug.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _WCN36XX_DEBUG_H_
+#define _WCN36XX_DEBUG_H_
+
+#include <linux/kernel.h>
+
+#define WCN36xx_MAX_DUMP_ARGS	5
+
+#ifdef CONFIG_WCN36XX_DEBUGFS
+struct wcn36xx_dfs_file {
+	struct dentry *dentry;
+	u32 value;
+};
+
+struct wcn36xx_dfs_entry {
+	struct dentry *rootdir;
+	struct wcn36xx_dfs_file file_bmps_switcher;
+	struct wcn36xx_dfs_file file_dump;
+};
+
+void wcn36xx_debugfs_init(struct wcn36xx *wcn);
+void wcn36xx_debugfs_exit(struct wcn36xx *wcn);
+
+#else
+static inline void wcn36xx_debugfs_init(struct wcn36xx *wcn)
+{
+}
+static inline void wcn36xx_debugfs_exit(struct wcn36xx *wcn)
+{
+}
+
+#endif /* CONFIG_WCN36XX_DEBUGFS */
+
+#endif	/* _WCN36XX_DEBUG_H_ */
diff --git a/drivers/net/wireless/ath/wcn36xx/dxe.c b/drivers/net/wireless/ath/wcn36xx/dxe.c
new file mode 100644
index 000000000000..ee25786b4447
--- /dev/null
+++ b/drivers/net/wireless/ath/wcn36xx/dxe.c
@@ -0,0 +1,805 @@
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+/* DXE - DMA transfer engine
+ * we have 2 channels(High prio and Low prio) for TX and 2 channels for RX.
+ * through low channels data packets are transfered
+ * through high channels managment packets are transfered
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/interrupt.h>
+#include "wcn36xx.h"
+#include "txrx.h"
+
+void *wcn36xx_dxe_get_next_bd(struct wcn36xx *wcn, bool is_low)
+{
+	struct wcn36xx_dxe_ch *ch = is_low ?
+		&wcn->dxe_tx_l_ch :
+		&wcn->dxe_tx_h_ch;
+
+	return ch->head_blk_ctl->bd_cpu_addr;
+}
+
+static void wcn36xx_dxe_write_register(struct wcn36xx *wcn, int addr, int data)
+{
+	wcn36xx_dbg(WCN36XX_DBG_DXE,
+		    "wcn36xx_dxe_write_register: addr=%x, data=%x\n",
+		    addr, data);
+
+	writel(data, wcn->mmio + addr);
+}
+
+static void wcn36xx_dxe_read_register(struct wcn36xx *wcn, int addr, int *data)
+{
+	*data = readl(wcn->mmio + addr);
+
+	wcn36xx_dbg(WCN36XX_DBG_DXE,
+		    "wcn36xx_dxe_read_register: addr=%x, data=%x\n",
+		    addr, *data);
+}
+
+static void wcn36xx_dxe_free_ctl_block(struct wcn36xx_dxe_ch *ch)
+{
+	struct wcn36xx_dxe_ctl *ctl = ch->head_blk_ctl, *next;
+	int i;
+
+	for (i = 0; i < ch->desc_num && ctl; i++) {
+		next = ctl->next;
+		kfree(ctl);
+		ctl = next;
+	}
+}
+
+static int wcn36xx_dxe_allocate_ctl_block(struct wcn36xx_dxe_ch *ch)
+{
+	struct wcn36xx_dxe_ctl *prev_ctl = NULL;
+	struct wcn36xx_dxe_ctl *cur_ctl = NULL;
+	int i;
+
+	for (i = 0; i < ch->desc_num; i++) {
+		cur_ctl = kzalloc(sizeof(*cur_ctl), GFP_KERNEL);
+		if (!cur_ctl)
+			goto out_fail;
+
+		cur_ctl->ctl_blk_order = i;
+		if (i == 0) {
+			ch->head_blk_ctl = cur_ctl;
+			ch->tail_blk_ctl = cur_ctl;
+		} else if (ch->desc_num - 1 == i) {
+			prev_ctl->next = cur_ctl;
+			cur_ctl->next = ch->head_blk_ctl;
+		} else {
+			prev_ctl->next = cur_ctl;
+		}
+		prev_ctl = cur_ctl;
+	}
+
+	return 0;
+
+out_fail:
+	wcn36xx_dxe_free_ctl_block(ch);
+	return -ENOMEM;
+}
+
+int wcn36xx_dxe_alloc_ctl_blks(struct wcn36xx *wcn)
+{
+	int ret;
+
+	wcn->dxe_tx_l_ch.ch_type = WCN36XX_DXE_CH_TX_L;
+	wcn->dxe_tx_h_ch.ch_type = WCN36XX_DXE_CH_TX_H;
+	wcn->dxe_rx_l_ch.ch_type = WCN36XX_DXE_CH_RX_L;
+	wcn->dxe_rx_h_ch.ch_type = WCN36XX_DXE_CH_RX_H;
+
+	wcn->dxe_tx_l_ch.desc_num = WCN36XX_DXE_CH_DESC_NUMB_TX_L;
+	wcn->dxe_tx_h_ch.desc_num = WCN36XX_DXE_CH_DESC_NUMB_TX_H;
+	wcn->dxe_rx_l_ch.desc_num = WCN36XX_DXE_CH_DESC_NUMB_RX_L;
+	wcn->dxe_rx_h_ch.desc_num = WCN36XX_DXE_CH_DESC_NUMB_RX_H;
+
+	wcn->dxe_tx_l_ch.dxe_wq =  WCN36XX_DXE_WQ_TX_L;
+	wcn->dxe_tx_h_ch.dxe_wq =  WCN36XX_DXE_WQ_TX_H;
+
+	wcn->dxe_tx_l_ch.ctrl_bd = WCN36XX_DXE_CTRL_TX_L_BD;
+	wcn->dxe_tx_h_ch.ctrl_bd = WCN36XX_DXE_CTRL_TX_H_BD;
+
+	wcn->dxe_tx_l_ch.ctrl_skb = WCN36XX_DXE_CTRL_TX_L_SKB;
+	wcn->dxe_tx_h_ch.ctrl_skb = WCN36XX_DXE_CTRL_TX_H_SKB;
+
+	wcn->dxe_tx_l_ch.reg_ctrl = WCN36XX_DXE_REG_CTL_TX_L;
+	wcn->dxe_tx_h_ch.reg_ctrl = WCN36XX_DXE_REG_CTL_TX_H;
+
+	wcn->dxe_tx_l_ch.def_ctrl = WCN36XX_DXE_CH_DEFAULT_CTL_TX_L;
+	wcn->dxe_tx_h_ch.def_ctrl = WCN36XX_DXE_CH_DEFAULT_CTL_TX_H;
+
+	/* DXE control block allocation */
+	ret = wcn36xx_dxe_allocate_ctl_block(&wcn->dxe_tx_l_ch);
+	if (ret)
+		goto out_err;
+	ret = wcn36xx_dxe_allocate_ctl_block(&wcn->dxe_tx_h_ch);
+	if (ret)
+		goto out_err;
+	ret = wcn36xx_dxe_allocate_ctl_block(&wcn->dxe_rx_l_ch);
+	if (ret)
+		goto out_err;
+	ret = wcn36xx_dxe_allocate_ctl_block(&wcn->dxe_rx_h_ch);
+	if (ret)
+		goto out_err;
+
+	/* Initialize SMSM state  Clear TX Enable RING EMPTY STATE */
+	ret = wcn->ctrl_ops->smsm_change_state(
+		WCN36XX_SMSM_WLAN_TX_ENABLE,
+		WCN36XX_SMSM_WLAN_TX_RINGS_EMPTY);
+
+	return 0;
+
+out_err:
+	wcn36xx_err("Failed to allocate DXE control blocks\n");
+	wcn36xx_dxe_free_ctl_blks(wcn);
+	return -ENOMEM;
+}
+
+void wcn36xx_dxe_free_ctl_blks(struct wcn36xx *wcn)
+{
+	wcn36xx_dxe_free_ctl_block(&wcn->dxe_tx_l_ch);
+	wcn36xx_dxe_free_ctl_block(&wcn->dxe_tx_h_ch);
+	wcn36xx_dxe_free_ctl_block(&wcn->dxe_rx_l_ch);
+	wcn36xx_dxe_free_ctl_block(&wcn->dxe_rx_h_ch);
+}
+
+static int wcn36xx_dxe_init_descs(struct wcn36xx_dxe_ch *wcn_ch)
+{
+	struct wcn36xx_dxe_desc *cur_dxe = NULL;
+	struct wcn36xx_dxe_desc *prev_dxe = NULL;
+	struct wcn36xx_dxe_ctl *cur_ctl = NULL;
+	size_t size;
+	int i;
+
+	size = wcn_ch->desc_num * sizeof(struct wcn36xx_dxe_desc);
+	wcn_ch->cpu_addr = dma_alloc_coherent(NULL, size, &wcn_ch->dma_addr,
+					      GFP_KERNEL);
+	if (!wcn_ch->cpu_addr)
+		return -ENOMEM;
+
+	memset(wcn_ch->cpu_addr, 0, size);
+
+	cur_dxe = (struct wcn36xx_dxe_desc *)wcn_ch->cpu_addr;
+	cur_ctl = wcn_ch->head_blk_ctl;
+
+	for (i = 0; i < wcn_ch->desc_num; i++) {
+		cur_ctl->desc = cur_dxe;
+		cur_ctl->desc_phy_addr = wcn_ch->dma_addr +
+			i * sizeof(struct wcn36xx_dxe_desc);
+
+		switch (wcn_ch->ch_type) {
+		case WCN36XX_DXE_CH_TX_L:
+			cur_dxe->ctrl = WCN36XX_DXE_CTRL_TX_L;
+			cur_dxe->dst_addr_l = WCN36XX_DXE_WQ_TX_L;
+			break;
+		case WCN36XX_DXE_CH_TX_H:
+			cur_dxe->ctrl = WCN36XX_DXE_CTRL_TX_H;
+			cur_dxe->dst_addr_l = WCN36XX_DXE_WQ_TX_H;
+			break;
+		case WCN36XX_DXE_CH_RX_L:
+			cur_dxe->ctrl = WCN36XX_DXE_CTRL_RX_L;
+			cur_dxe->src_addr_l = WCN36XX_DXE_WQ_RX_L;
+			break;
+		case WCN36XX_DXE_CH_RX_H:
+			cur_dxe->ctrl = WCN36XX_DXE_CTRL_RX_H;
+			cur_dxe->src_addr_l = WCN36XX_DXE_WQ_RX_H;
+			break;
+		}
+		if (0 == i) {
+			cur_dxe->phy_next_l = 0;
+		} else if ((0 < i) && (i < wcn_ch->desc_num - 1)) {
+			prev_dxe->phy_next_l =
+				cur_ctl->desc_phy_addr;
+		} else if (i == (wcn_ch->desc_num - 1)) {
+			prev_dxe->phy_next_l =
+				cur_ctl->desc_phy_addr;
+			cur_dxe->phy_next_l =
+				wcn_ch->head_blk_ctl->desc_phy_addr;
+		}
+		cur_ctl = cur_ctl->next;
+		prev_dxe = cur_dxe;
+		cur_dxe++;
+	}
+
+	return 0;
+}
+
+static void wcn36xx_dxe_init_tx_bd(struct wcn36xx_dxe_ch *ch,
+				   struct wcn36xx_dxe_mem_pool *pool)
+{
+	int i, chunk_size = pool->chunk_size;
+	dma_addr_t bd_phy_addr = pool->phy_addr;
+	void *bd_cpu_addr = pool->virt_addr;
+	struct wcn36xx_dxe_ctl *cur = ch->head_blk_ctl;
+
+	for (i = 0; i < ch->desc_num; i++) {
+		/* Only every second dxe needs a bd pointer,
+		   the other will point to the skb data */
+		if (!(i & 1)) {
+			cur->bd_phy_addr = bd_phy_addr;
+			cur->bd_cpu_addr = bd_cpu_addr;
+			bd_phy_addr += chunk_size;
+			bd_cpu_addr += chunk_size;
+		} else {
+			cur->bd_phy_addr = 0;
+			cur->bd_cpu_addr = NULL;
+		}
+		cur = cur->next;
+	}
+}
+
+static int wcn36xx_dxe_enable_ch_int(struct wcn36xx *wcn, u16 wcn_ch)
+{
+	int reg_data = 0;
+
+	wcn36xx_dxe_read_register(wcn,
+				  WCN36XX_DXE_INT_MASK_REG,
+				  &reg_data);
+
+	reg_data |= wcn_ch;
+
+	wcn36xx_dxe_write_register(wcn,
+				   WCN36XX_DXE_INT_MASK_REG,
+				   (int)reg_data);
+	return 0;
+}
+
+static int wcn36xx_dxe_fill_skb(struct wcn36xx_dxe_ctl *ctl)
+{
+	struct wcn36xx_dxe_desc *dxe = ctl->desc;
+	struct sk_buff *skb;
+
+	skb = alloc_skb(WCN36XX_PKT_SIZE, GFP_ATOMIC);
+	if (skb == NULL)
+		return -ENOMEM;
+
+	dxe->dst_addr_l = dma_map_single(NULL,
+					 skb_tail_pointer(skb),
+					 WCN36XX_PKT_SIZE,
+					 DMA_FROM_DEVICE);
+	ctl->skb = skb;
+
+	return 0;
+}
+
+static int wcn36xx_dxe_ch_alloc_skb(struct wcn36xx *wcn,
+				    struct wcn36xx_dxe_ch *wcn_ch)
+{
+	int i;
+	struct wcn36xx_dxe_ctl *cur_ctl = NULL;
+
+	cur_ctl = wcn_ch->head_blk_ctl;
+
+	for (i = 0; i < wcn_ch->desc_num; i++) {
+		wcn36xx_dxe_fill_skb(cur_ctl);
+		cur_ctl = cur_ctl->next;
+	}
+
+	return 0;
+}
+
+static void wcn36xx_dxe_ch_free_skbs(struct wcn36xx *wcn,
+				     struct wcn36xx_dxe_ch *wcn_ch)
+{
+	struct wcn36xx_dxe_ctl *cur = wcn_ch->head_blk_ctl;
+	int i;
+
+	for (i = 0; i < wcn_ch->desc_num; i++) {
+		kfree_skb(cur->skb);
+		cur = cur->next;
+	}
+}
+
+void wcn36xx_dxe_tx_ack_ind(struct wcn36xx *wcn, u32 status)
+{
+	struct ieee80211_tx_info *info;
+	struct sk_buff *skb;
+	unsigned long flags;
+
+	spin_lock_irqsave(&wcn->dxe_lock, flags);
+	skb = wcn->tx_ack_skb;
+	wcn->tx_ack_skb = NULL;
+	spin_unlock_irqrestore(&wcn->dxe_lock, flags);
+
+	if (!skb) {
+		wcn36xx_warn("Spurious TX complete indication\n");
+		return;
+	}
+
+	info = IEEE80211_SKB_CB(skb);
+
+	if (status == 1)
+		info->flags |= IEEE80211_TX_STAT_ACK;
+
+	wcn36xx_dbg(WCN36XX_DBG_DXE, "dxe tx ack status: %d\n", status);
+
+	ieee80211_tx_status_irqsafe(wcn->hw, skb);
+	ieee80211_wake_queues(wcn->hw);
+}
+
+static void reap_tx_dxes(struct wcn36xx *wcn, struct wcn36xx_dxe_ch *ch)
+{
+	struct wcn36xx_dxe_ctl *ctl = ch->tail_blk_ctl;
+	struct ieee80211_tx_info *info;
+	unsigned long flags;
+
+	/*
+	 * Make at least one loop of do-while because in case ring is
+	 * completely full head and tail are pointing to the same element
+	 * and while-do will not make any cycles.
+	 */
+	do {
+		if (ctl->skb) {
+			dma_unmap_single(NULL, ctl->desc->src_addr_l,
+					 ctl->skb->len, DMA_TO_DEVICE);
+			info = IEEE80211_SKB_CB(ctl->skb);
+			if (!(info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS)) {
+				/* Keep frame until TX status comes */
+				ieee80211_free_txskb(wcn->hw, ctl->skb);
+			}
+			spin_lock_irqsave(&ctl->skb_lock, flags);
+			if (wcn->queues_stopped) {
+				wcn->queues_stopped = false;
+				ieee80211_wake_queues(wcn->hw);
+			}
+			spin_unlock_irqrestore(&ctl->skb_lock, flags);
+
+			ctl->skb = NULL;
+		}
+		ctl = ctl->next;
+	} while (ctl != ch->head_blk_ctl &&
+	       !(ctl->desc->ctrl & WCN36XX_DXE_CTRL_VALID_MASK));
+
+	ch->tail_blk_ctl = ctl;
+}
+
+static irqreturn_t wcn36xx_irq_tx_complete(int irq, void *dev)
+{
+	struct wcn36xx *wcn = (struct wcn36xx *)dev;
+	int int_src, int_reason;
+
+	wcn36xx_dxe_read_register(wcn, WCN36XX_DXE_INT_SRC_RAW_REG, &int_src);
+
+	if (int_src & WCN36XX_INT_MASK_CHAN_TX_H) {
+		wcn36xx_dxe_read_register(wcn,
+					  WCN36XX_DXE_CH_STATUS_REG_ADDR_TX_H,
+					  &int_reason);
+
+		/* TODO: Check int_reason */
+
+		wcn36xx_dxe_write_register(wcn,
+					   WCN36XX_DXE_0_INT_CLR,
+					   WCN36XX_INT_MASK_CHAN_TX_H);
+
+		wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_0_INT_ED_CLR,
+					   WCN36XX_INT_MASK_CHAN_TX_H);
+		wcn36xx_dbg(WCN36XX_DBG_DXE, "dxe tx ready high\n");
+		reap_tx_dxes(wcn, &wcn->dxe_tx_h_ch);
+	}
+
+	if (int_src & WCN36XX_INT_MASK_CHAN_TX_L) {
+		wcn36xx_dxe_read_register(wcn,
+					  WCN36XX_DXE_CH_STATUS_REG_ADDR_TX_L,
+					  &int_reason);
+		/* TODO: Check int_reason */
+
+		wcn36xx_dxe_write_register(wcn,
+					   WCN36XX_DXE_0_INT_CLR,
+					   WCN36XX_INT_MASK_CHAN_TX_L);
+
+		wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_0_INT_ED_CLR,
+					   WCN36XX_INT_MASK_CHAN_TX_L);
+		wcn36xx_dbg(WCN36XX_DBG_DXE, "dxe tx ready low\n");
+		reap_tx_dxes(wcn, &wcn->dxe_tx_l_ch);
+	}
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t wcn36xx_irq_rx_ready(int irq, void *dev)
+{
+	struct wcn36xx *wcn = (struct wcn36xx *)dev;
+
+	disable_irq_nosync(wcn->rx_irq);
+	wcn36xx_dxe_rx_frame(wcn);
+	enable_irq(wcn->rx_irq);
+	return IRQ_HANDLED;
+}
+
+static int wcn36xx_dxe_request_irqs(struct wcn36xx *wcn)
+{
+	int ret;
+
+	ret = request_irq(wcn->tx_irq, wcn36xx_irq_tx_complete,
+			  IRQF_TRIGGER_HIGH, "wcn36xx_tx", wcn);
+	if (ret) {
+		wcn36xx_err("failed to alloc tx irq\n");
+		goto out_err;
+	}
+
+	ret = request_irq(wcn->rx_irq, wcn36xx_irq_rx_ready, IRQF_TRIGGER_HIGH,
+			  "wcn36xx_rx", wcn);
+	if (ret) {
+		wcn36xx_err("failed to alloc rx irq\n");
+		goto out_txirq;
+	}
+
+	enable_irq_wake(wcn->rx_irq);
+
+	return 0;
+
+out_txirq:
+	free_irq(wcn->tx_irq, wcn);
+out_err:
+	return ret;
+
+}
+
+static int wcn36xx_rx_handle_packets(struct wcn36xx *wcn,
+				     struct wcn36xx_dxe_ch *ch)
+{
+	struct wcn36xx_dxe_ctl *ctl = ch->head_blk_ctl;
+	struct wcn36xx_dxe_desc *dxe = ctl->desc;
+	dma_addr_t  dma_addr;
+	struct sk_buff *skb;
+
+	while (!(dxe->ctrl & WCN36XX_DXE_CTRL_VALID_MASK)) {
+		skb = ctl->skb;
+		dma_addr = dxe->dst_addr_l;
+		wcn36xx_dxe_fill_skb(ctl);
+
+		switch (ch->ch_type) {
+		case WCN36XX_DXE_CH_RX_L:
+			dxe->ctrl = WCN36XX_DXE_CTRL_RX_L;
+			wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_ENCH_ADDR,
+						   WCN36XX_DXE_INT_CH1_MASK);
+			break;
+		case WCN36XX_DXE_CH_RX_H:
+			dxe->ctrl = WCN36XX_DXE_CTRL_RX_H;
+			wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_ENCH_ADDR,
+						   WCN36XX_DXE_INT_CH3_MASK);
+			break;
+		default:
+			wcn36xx_warn("Unknown channel\n");
+		}
+
+		dma_unmap_single(NULL, dma_addr, WCN36XX_PKT_SIZE,
+				 DMA_FROM_DEVICE);
+		wcn36xx_rx_skb(wcn, skb);
+		ctl = ctl->next;
+		dxe = ctl->desc;
+	}
+
+	ch->head_blk_ctl = ctl;
+
+	return 0;
+}
+
+void wcn36xx_dxe_rx_frame(struct wcn36xx *wcn)
+{
+	int int_src;
+
+	wcn36xx_dxe_read_register(wcn, WCN36XX_DXE_INT_SRC_RAW_REG, &int_src);
+
+	/* RX_LOW_PRI */
+	if (int_src & WCN36XX_DXE_INT_CH1_MASK) {
+		wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_0_INT_CLR,
+					   WCN36XX_DXE_INT_CH1_MASK);
+		wcn36xx_rx_handle_packets(wcn, &(wcn->dxe_rx_l_ch));
+	}
+
+	/* RX_HIGH_PRI */
+	if (int_src & WCN36XX_DXE_INT_CH3_MASK) {
+		/* Clean up all the INT within this channel */
+		wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_0_INT_CLR,
+					   WCN36XX_DXE_INT_CH3_MASK);
+		wcn36xx_rx_handle_packets(wcn, &(wcn->dxe_rx_h_ch));
+	}
+
+	if (!int_src)
+		wcn36xx_warn("No DXE interrupt pending\n");
+}
+
+int wcn36xx_dxe_allocate_mem_pools(struct wcn36xx *wcn)
+{
+	size_t s;
+	void *cpu_addr;
+
+	/* Allocate BD headers for MGMT frames */
+
+	/* Where this come from ask QC */
+	wcn->mgmt_mem_pool.chunk_size =	WCN36XX_BD_CHUNK_SIZE +
+		16 - (WCN36XX_BD_CHUNK_SIZE % 8);
+
+	s = wcn->mgmt_mem_pool.chunk_size * WCN36XX_DXE_CH_DESC_NUMB_TX_H;
+	cpu_addr = dma_alloc_coherent(NULL, s, &wcn->mgmt_mem_pool.phy_addr,
+				      GFP_KERNEL);
+	if (!cpu_addr)
+		goto out_err;
+
+	wcn->mgmt_mem_pool.virt_addr = cpu_addr;
+	memset(cpu_addr, 0, s);
+
+	/* Allocate BD headers for DATA frames */
+
+	/* Where this come from ask QC */
+	wcn->data_mem_pool.chunk_size = WCN36XX_BD_CHUNK_SIZE +
+		16 - (WCN36XX_BD_CHUNK_SIZE % 8);
+
+	s = wcn->data_mem_pool.chunk_size * WCN36XX_DXE_CH_DESC_NUMB_TX_L;
+	cpu_addr = dma_alloc_coherent(NULL, s, &wcn->data_mem_pool.phy_addr,
+				      GFP_KERNEL);
+	if (!cpu_addr)
+		goto out_err;
+
+	wcn->data_mem_pool.virt_addr = cpu_addr;
+	memset(cpu_addr, 0, s);
+
+	return 0;
+
+out_err:
+	wcn36xx_dxe_free_mem_pools(wcn);
+	wcn36xx_err("Failed to allocate BD mempool\n");
+	return -ENOMEM;
+}
+
+void wcn36xx_dxe_free_mem_pools(struct wcn36xx *wcn)
+{
+	if (wcn->mgmt_mem_pool.virt_addr)
+		dma_free_coherent(NULL, wcn->mgmt_mem_pool.chunk_size *
+				  WCN36XX_DXE_CH_DESC_NUMB_TX_H,
+				  wcn->mgmt_mem_pool.virt_addr,
+				  wcn->mgmt_mem_pool.phy_addr);
+
+	if (wcn->data_mem_pool.virt_addr) {
+		dma_free_coherent(NULL, wcn->data_mem_pool.chunk_size *
+				  WCN36XX_DXE_CH_DESC_NUMB_TX_L,
+				  wcn->data_mem_pool.virt_addr,
+				  wcn->data_mem_pool.phy_addr);
+	}
+}
+
+int wcn36xx_dxe_tx_frame(struct wcn36xx *wcn,
+			 struct wcn36xx_vif *vif_priv,
+			 struct sk_buff *skb,
+			 bool is_low)
+{
+	struct wcn36xx_dxe_ctl *ctl = NULL;
+	struct wcn36xx_dxe_desc *desc = NULL;
+	struct wcn36xx_dxe_ch *ch = NULL;
+	unsigned long flags;
+
+	ch = is_low ? &wcn->dxe_tx_l_ch : &wcn->dxe_tx_h_ch;
+
+	ctl = ch->head_blk_ctl;
+
+	spin_lock_irqsave(&ctl->next->skb_lock, flags);
+
+	/*
+	 * If skb is not null that means that we reached the tail of the ring
+	 * hence ring is full. Stop queues to let mac80211 back off until ring
+	 * has an empty slot again.
+	 */
+	if (NULL != ctl->next->skb) {
+		ieee80211_stop_queues(wcn->hw);
+		wcn->queues_stopped = true;
+		spin_unlock_irqrestore(&ctl->next->skb_lock, flags);
+		return -EBUSY;
+	}
+	spin_unlock_irqrestore(&ctl->next->skb_lock, flags);
+
+	ctl->skb = NULL;
+	desc = ctl->desc;
+
+	/* Set source address of the BD we send */
+	desc->src_addr_l = ctl->bd_phy_addr;
+
+	desc->dst_addr_l = ch->dxe_wq;
+	desc->fr_len = sizeof(struct wcn36xx_tx_bd);
+	desc->ctrl = ch->ctrl_bd;
+
+	wcn36xx_dbg(WCN36XX_DBG_DXE, "DXE TX\n");
+
+	wcn36xx_dbg_dump(WCN36XX_DBG_DXE_DUMP, "DESC1 >>> ",
+			 (char *)desc, sizeof(*desc));
+	wcn36xx_dbg_dump(WCN36XX_DBG_DXE_DUMP,
+			 "BD   >>> ", (char *)ctl->bd_cpu_addr,
+			 sizeof(struct wcn36xx_tx_bd));
+
+	/* Set source address of the SKB we send */
+	ctl = ctl->next;
+	ctl->skb = skb;
+	desc = ctl->desc;
+	if (ctl->bd_cpu_addr) {
+		wcn36xx_err("bd_cpu_addr cannot be NULL for skb DXE\n");
+		return -EINVAL;
+	}
+
+	desc->src_addr_l = dma_map_single(NULL,
+					  ctl->skb->data,
+					  ctl->skb->len,
+					  DMA_TO_DEVICE);
+
+	desc->dst_addr_l = ch->dxe_wq;
+	desc->fr_len = ctl->skb->len;
+
+	/* set dxe descriptor to VALID */
+	desc->ctrl = ch->ctrl_skb;
+
+	wcn36xx_dbg_dump(WCN36XX_DBG_DXE_DUMP, "DESC2 >>> ",
+			 (char *)desc, sizeof(*desc));
+	wcn36xx_dbg_dump(WCN36XX_DBG_DXE_DUMP, "SKB   >>> ",
+			 (char *)ctl->skb->data, ctl->skb->len);
+
+	/* Move the head of the ring to the next empty descriptor */
+	 ch->head_blk_ctl = ctl->next;
+
+	/*
+	 * When connected and trying to send data frame chip can be in sleep
+	 * mode and writing to the register will not wake up the chip. Instead
+	 * notify chip about new frame through SMSM bus.
+	 */
+	if (is_low &&  vif_priv->pw_state == WCN36XX_BMPS) {
+		wcn->ctrl_ops->smsm_change_state(
+				  0,
+				  WCN36XX_SMSM_WLAN_TX_ENABLE);
+	} else {
+		/* indicate End Of Packet and generate interrupt on descriptor
+		 * done.
+		 */
+		wcn36xx_dxe_write_register(wcn,
+			ch->reg_ctrl, ch->def_ctrl);
+	}
+
+	return 0;
+}
+
+int wcn36xx_dxe_init(struct wcn36xx *wcn)
+{
+	int reg_data = 0, ret;
+
+	reg_data = WCN36XX_DXE_REG_RESET;
+	wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_REG_CSR_RESET, reg_data);
+
+	/* Setting interrupt path */
+	reg_data = WCN36XX_DXE_CCU_INT;
+	wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_REG_CCU_INT, reg_data);
+
+	/***************************************/
+	/* Init descriptors for TX LOW channel */
+	/***************************************/
+	wcn36xx_dxe_init_descs(&wcn->dxe_tx_l_ch);
+	wcn36xx_dxe_init_tx_bd(&wcn->dxe_tx_l_ch, &wcn->data_mem_pool);
+
+	/* Write channel head to a NEXT register */
+	wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_CH_NEXT_DESC_ADDR_TX_L,
+		wcn->dxe_tx_l_ch.head_blk_ctl->desc_phy_addr);
+
+	/* Program DMA destination addr for TX LOW */
+	wcn36xx_dxe_write_register(wcn,
+		WCN36XX_DXE_CH_DEST_ADDR_TX_L,
+		WCN36XX_DXE_WQ_TX_L);
+
+	wcn36xx_dxe_read_register(wcn, WCN36XX_DXE_REG_CH_EN, &reg_data);
+	wcn36xx_dxe_enable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_TX_L);
+
+	/***************************************/
+	/* Init descriptors for TX HIGH channel */
+	/***************************************/
+	wcn36xx_dxe_init_descs(&wcn->dxe_tx_h_ch);
+	wcn36xx_dxe_init_tx_bd(&wcn->dxe_tx_h_ch, &wcn->mgmt_mem_pool);
+
+	/* Write channel head to a NEXT register */
+	wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_CH_NEXT_DESC_ADDR_TX_H,
+		wcn->dxe_tx_h_ch.head_blk_ctl->desc_phy_addr);
+
+	/* Program DMA destination addr for TX HIGH */
+	wcn36xx_dxe_write_register(wcn,
+		WCN36XX_DXE_CH_DEST_ADDR_TX_H,
+		WCN36XX_DXE_WQ_TX_H);
+
+	wcn36xx_dxe_read_register(wcn, WCN36XX_DXE_REG_CH_EN, &reg_data);
+
+	/* Enable channel interrupts */
+	wcn36xx_dxe_enable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_TX_H);
+
+	/***************************************/
+	/* Init descriptors for RX LOW channel */
+	/***************************************/
+	wcn36xx_dxe_init_descs(&wcn->dxe_rx_l_ch);
+
+	/* For RX we need to preallocated buffers */
+	wcn36xx_dxe_ch_alloc_skb(wcn, &wcn->dxe_rx_l_ch);
+
+	/* Write channel head to a NEXT register */
+	wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_CH_NEXT_DESC_ADDR_RX_L,
+		wcn->dxe_rx_l_ch.head_blk_ctl->desc_phy_addr);
+
+	/* Write DMA source address */
+	wcn36xx_dxe_write_register(wcn,
+		WCN36XX_DXE_CH_SRC_ADDR_RX_L,
+		WCN36XX_DXE_WQ_RX_L);
+
+	/* Program preallocated destination address */
+	wcn36xx_dxe_write_register(wcn,
+		WCN36XX_DXE_CH_DEST_ADDR_RX_L,
+		wcn->dxe_rx_l_ch.head_blk_ctl->desc->phy_next_l);
+
+	/* Enable default control registers */
+	wcn36xx_dxe_write_register(wcn,
+		WCN36XX_DXE_REG_CTL_RX_L,
+		WCN36XX_DXE_CH_DEFAULT_CTL_RX_L);
+
+	/* Enable channel interrupts */
+	wcn36xx_dxe_enable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_RX_L);
+
+	/***************************************/
+	/* Init descriptors for RX HIGH channel */
+	/***************************************/
+	wcn36xx_dxe_init_descs(&wcn->dxe_rx_h_ch);
+
+	/* For RX we need to prealocat buffers */
+	wcn36xx_dxe_ch_alloc_skb(wcn, &wcn->dxe_rx_h_ch);
+
+	/* Write chanel head to a NEXT register */
+	wcn36xx_dxe_write_register(wcn, WCN36XX_DXE_CH_NEXT_DESC_ADDR_RX_H,
+		wcn->dxe_rx_h_ch.head_blk_ctl->desc_phy_addr);
+
+	/* Write DMA source address */
+	wcn36xx_dxe_write_register(wcn,
+		WCN36XX_DXE_CH_SRC_ADDR_RX_H,
+		WCN36XX_DXE_WQ_RX_H);
+
+	/* Program preallocated destination address */
+	wcn36xx_dxe_write_register(wcn,
+		WCN36XX_DXE_CH_DEST_ADDR_RX_H,
+		 wcn->dxe_rx_h_ch.head_blk_ctl->desc->phy_next_l);
+
+	/* Enable default control registers */
+	wcn36xx_dxe_write_register(wcn,
+		WCN36XX_DXE_REG_CTL_RX_H,
+		WCN36XX_DXE_CH_DEFAULT_CTL_RX_H);
+
+	/* Enable channel interrupts */
+	wcn36xx_dxe_enable_ch_int(wcn, WCN36XX_INT_MASK_CHAN_RX_H);
+
+	ret = wcn36xx_dxe_request_irqs(wcn);
+	if (ret < 0)
+		goto out_err;
+
+	return 0;
+
+out_err:
+	return ret;
+}
+
+void wcn36xx_dxe_deinit(struct wcn36xx *wcn)
+{
+	free_irq(wcn->tx_irq, wcn);
+	free_irq(wcn->rx_irq, wcn);
+
+	if (wcn->tx_ack_skb) {
+		ieee80211_tx_status_irqsafe(wcn->hw, wcn->tx_ack_skb);
+		wcn->tx_ack_skb = NULL;
+	}
+
+	wcn36xx_dxe_ch_free_skbs(wcn, &wcn->dxe_rx_l_ch);
+	wcn36xx_dxe_ch_free_skbs(wcn, &wcn->dxe_rx_h_ch);
+}
diff --git a/drivers/net/wireless/ath/wcn36xx/dxe.h b/drivers/net/wireless/ath/wcn36xx/dxe.h
new file mode 100644
index 000000000000..c88562f85de1
--- /dev/null
+++ b/drivers/net/wireless/ath/wcn36xx/dxe.h
@@ -0,0 +1,284 @@
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _DXE_H_
+#define _DXE_H_
+
+#include "wcn36xx.h"
+
+/*
+TX_LOW	= DMA0
+TX_HIGH	= DMA4
+RX_LOW	= DMA1
+RX_HIGH	= DMA3
+H2H_TEST_RX_TX = DMA2
+*/
+
+/* DXE registers */
+#define WCN36XX_DXE_MEM_BASE			0x03000000
+#define WCN36XX_DXE_MEM_REG			0x202000
+
+#define WCN36XX_DXE_CCU_INT			0xA0011
+#define WCN36XX_DXE_REG_CCU_INT			0x200b10
+
+/* TODO This must calculated properly but not hardcoded */
+#define WCN36XX_DXE_CTRL_TX_L			0x328a44
+#define WCN36XX_DXE_CTRL_TX_H			0x32ce44
+#define WCN36XX_DXE_CTRL_RX_L			0x12ad2f
+#define WCN36XX_DXE_CTRL_RX_H			0x12d12f
+#define WCN36XX_DXE_CTRL_TX_H_BD		0x30ce45
+#define WCN36XX_DXE_CTRL_TX_H_SKB		0x32ce4d
+#define WCN36XX_DXE_CTRL_TX_L_BD		0x308a45
+#define WCN36XX_DXE_CTRL_TX_L_SKB		0x328a4d
+
+/* TODO This must calculated properly but not hardcoded */
+#define WCN36XX_DXE_WQ_TX_L			0x17
+#define WCN36XX_DXE_WQ_TX_H			0x17
+#define WCN36XX_DXE_WQ_RX_L			0xB
+#define WCN36XX_DXE_WQ_RX_H			0x4
+
+/* DXE descriptor control filed */
+#define WCN36XX_DXE_CTRL_VALID_MASK (0x00000001)
+
+/* TODO This must calculated properly but not hardcoded */
+/* DXE default control register values */
+#define WCN36XX_DXE_CH_DEFAULT_CTL_RX_L		0x847EAD2F
+#define WCN36XX_DXE_CH_DEFAULT_CTL_RX_H		0x84FED12F
+#define WCN36XX_DXE_CH_DEFAULT_CTL_TX_H		0x853ECF4D
+#define WCN36XX_DXE_CH_DEFAULT_CTL_TX_L		0x843e8b4d
+
+/* Common DXE registers */
+#define WCN36XX_DXE_MEM_CSR			(WCN36XX_DXE_MEM_REG + 0x00)
+#define WCN36XX_DXE_REG_CSR_RESET		(WCN36XX_DXE_MEM_REG + 0x00)
+#define WCN36XX_DXE_ENCH_ADDR			(WCN36XX_DXE_MEM_REG + 0x04)
+#define WCN36XX_DXE_REG_CH_EN			(WCN36XX_DXE_MEM_REG + 0x08)
+#define WCN36XX_DXE_REG_CH_DONE			(WCN36XX_DXE_MEM_REG + 0x0C)
+#define WCN36XX_DXE_REG_CH_ERR			(WCN36XX_DXE_MEM_REG + 0x10)
+#define WCN36XX_DXE_INT_MASK_REG		(WCN36XX_DXE_MEM_REG + 0x18)
+#define WCN36XX_DXE_INT_SRC_RAW_REG		(WCN36XX_DXE_MEM_REG + 0x20)
+	/* #define WCN36XX_DXE_INT_CH6_MASK	0x00000040 */
+	/* #define WCN36XX_DXE_INT_CH5_MASK	0x00000020 */
+	#define WCN36XX_DXE_INT_CH4_MASK	0x00000010
+	#define WCN36XX_DXE_INT_CH3_MASK	0x00000008
+	/* #define WCN36XX_DXE_INT_CH2_MASK	0x00000004 */
+	#define WCN36XX_DXE_INT_CH1_MASK	0x00000002
+	#define WCN36XX_DXE_INT_CH0_MASK	0x00000001
+#define WCN36XX_DXE_0_INT_CLR			(WCN36XX_DXE_MEM_REG + 0x30)
+#define WCN36XX_DXE_0_INT_ED_CLR		(WCN36XX_DXE_MEM_REG + 0x34)
+#define WCN36XX_DXE_0_INT_DONE_CLR		(WCN36XX_DXE_MEM_REG + 0x38)
+#define WCN36XX_DXE_0_INT_ERR_CLR		(WCN36XX_DXE_MEM_REG + 0x3C)
+
+#define WCN36XX_DXE_0_CH0_STATUS		(WCN36XX_DXE_MEM_REG + 0x404)
+#define WCN36XX_DXE_0_CH1_STATUS		(WCN36XX_DXE_MEM_REG + 0x444)
+#define WCN36XX_DXE_0_CH2_STATUS		(WCN36XX_DXE_MEM_REG + 0x484)
+#define WCN36XX_DXE_0_CH3_STATUS		(WCN36XX_DXE_MEM_REG + 0x4C4)
+#define WCN36XX_DXE_0_CH4_STATUS		(WCN36XX_DXE_MEM_REG + 0x504)
+
+#define WCN36XX_DXE_REG_RESET			0x5c89
+
+/* Temporary BMU Workqueue 4 */
+#define WCN36XX_DXE_BMU_WQ_RX_LOW		0xB
+#define WCN36XX_DXE_BMU_WQ_RX_HIGH		0x4
+/* DMA channel offset */
+#define WCN36XX_DXE_TX_LOW_OFFSET		0x400
+#define WCN36XX_DXE_TX_HIGH_OFFSET		0x500
+#define WCN36XX_DXE_RX_LOW_OFFSET		0x440
+#define WCN36XX_DXE_RX_HIGH_OFFSET		0x4C0
+
+/* Address of the next DXE descriptor */
+#define WCN36XX_DXE_CH_NEXT_DESC_ADDR		0x001C
+#define WCN36XX_DXE_CH_NEXT_DESC_ADDR_TX_L	(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_TX_LOW_OFFSET + \
+						 WCN36XX_DXE_CH_NEXT_DESC_ADDR)
+#define WCN36XX_DXE_CH_NEXT_DESC_ADDR_TX_H	(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_TX_HIGH_OFFSET + \
+						 WCN36XX_DXE_CH_NEXT_DESC_ADDR)
+#define WCN36XX_DXE_CH_NEXT_DESC_ADDR_RX_L	(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_RX_LOW_OFFSET + \
+						 WCN36XX_DXE_CH_NEXT_DESC_ADDR)
+#define WCN36XX_DXE_CH_NEXT_DESC_ADDR_RX_H	(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_RX_HIGH_OFFSET + \
+						 WCN36XX_DXE_CH_NEXT_DESC_ADDR)
+
+/* DXE Descriptor source address */
+#define WCN36XX_DXE_CH_SRC_ADDR			0x000C
+#define WCN36XX_DXE_CH_SRC_ADDR_RX_L		(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_RX_LOW_OFFSET + \
+						 WCN36XX_DXE_CH_SRC_ADDR)
+#define WCN36XX_DXE_CH_SRC_ADDR_RX_H		(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_RX_HIGH_OFFSET + \
+						 WCN36XX_DXE_CH_SRC_ADDR)
+
+/* DXE Descriptor address destination address */
+#define WCN36XX_DXE_CH_DEST_ADDR		0x0014
+#define WCN36XX_DXE_CH_DEST_ADDR_TX_L		(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_TX_LOW_OFFSET + \
+						 WCN36XX_DXE_CH_DEST_ADDR)
+#define WCN36XX_DXE_CH_DEST_ADDR_TX_H		(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_TX_HIGH_OFFSET + \
+						 WCN36XX_DXE_CH_DEST_ADDR)
+#define WCN36XX_DXE_CH_DEST_ADDR_RX_L		(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_RX_LOW_OFFSET + \
+						 WCN36XX_DXE_CH_DEST_ADDR)
+#define WCN36XX_DXE_CH_DEST_ADDR_RX_H		(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_RX_HIGH_OFFSET + \
+						 WCN36XX_DXE_CH_DEST_ADDR)
+
+/* Interrupt status */
+#define WCN36XX_DXE_CH_STATUS_REG_ADDR		0x0004
+#define WCN36XX_DXE_CH_STATUS_REG_ADDR_TX_L	(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_TX_LOW_OFFSET + \
+						 WCN36XX_DXE_CH_STATUS_REG_ADDR)
+#define WCN36XX_DXE_CH_STATUS_REG_ADDR_TX_H	(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_TX_HIGH_OFFSET + \
+						 WCN36XX_DXE_CH_STATUS_REG_ADDR)
+#define WCN36XX_DXE_CH_STATUS_REG_ADDR_RX_L	(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_RX_LOW_OFFSET + \
+						 WCN36XX_DXE_CH_STATUS_REG_ADDR)
+#define WCN36XX_DXE_CH_STATUS_REG_ADDR_RX_H	(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_RX_HIGH_OFFSET + \
+						 WCN36XX_DXE_CH_STATUS_REG_ADDR)
+
+
+/* DXE default control register */
+#define WCN36XX_DXE_REG_CTL_RX_L		(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_RX_LOW_OFFSET)
+#define WCN36XX_DXE_REG_CTL_RX_H		(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_RX_HIGH_OFFSET)
+#define WCN36XX_DXE_REG_CTL_TX_H		(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_TX_HIGH_OFFSET)
+#define WCN36XX_DXE_REG_CTL_TX_L		(WCN36XX_DXE_MEM_REG + \
+						 WCN36XX_DXE_TX_LOW_OFFSET)
+
+#define WCN36XX_SMSM_WLAN_TX_ENABLE		0x00000400
+#define WCN36XX_SMSM_WLAN_TX_RINGS_EMPTY	0x00000200
+
+
+/* Interrupt control channel mask */
+#define WCN36XX_INT_MASK_CHAN_TX_L		0x00000001
+#define WCN36XX_INT_MASK_CHAN_RX_L		0x00000002
+#define WCN36XX_INT_MASK_CHAN_RX_H		0x00000008
+#define WCN36XX_INT_MASK_CHAN_TX_H		0x00000010
+
+#define WCN36XX_BD_CHUNK_SIZE			128
+
+#define WCN36XX_PKT_SIZE			0xF20
+enum wcn36xx_dxe_ch_type {
+	WCN36XX_DXE_CH_TX_L,
+	WCN36XX_DXE_CH_TX_H,
+	WCN36XX_DXE_CH_RX_L,
+	WCN36XX_DXE_CH_RX_H
+};
+
+/* amount of descriptors per channel */
+enum wcn36xx_dxe_ch_desc_num {
+	WCN36XX_DXE_CH_DESC_NUMB_TX_L		= 128,
+	WCN36XX_DXE_CH_DESC_NUMB_TX_H		= 10,
+	WCN36XX_DXE_CH_DESC_NUMB_RX_L		= 512,
+	WCN36XX_DXE_CH_DESC_NUMB_RX_H		= 40
+};
+
+/**
+ * struct wcn36xx_dxe_desc - describes descriptor of one DXE buffer
+ *
+ * @ctrl: is a union that consists of following bits:
+ * union {
+ *	u32	valid		:1; //0 = DMA stop, 1 = DMA continue with this
+ *				    //descriptor
+ *	u32	transfer_type	:2; //0 = Host to Host space
+ *	u32	eop		:1; //End of Packet
+ *	u32	bd_handling	:1; //if transferType = Host to BMU, then 0
+ *				    // means first 128 bytes contain BD, and 1
+ *				    // means create new empty BD
+ *	u32	siq		:1; // SIQ
+ *	u32	diq		:1; // DIQ
+ *	u32	pdu_rel		:1; //0 = don't release BD and PDUs when done,
+ *				    // 1 = release them
+ *	u32	bthld_sel	:4; //BMU Threshold Select
+ *	u32	prio		:3; //Specifies the priority level to use for
+ *				    // the transfer
+ *	u32	stop_channel	:1; //1 = DMA stops processing further, channel
+ *				    //requires re-enabling after this
+ *	u32	intr		:1; //Interrupt on Descriptor Done
+ *	u32	rsvd		:1; //reserved
+ *	u32	size		:14;//14 bits used - ignored for BMU transfers,
+ *				    //only used for host to host transfers?
+ * } ctrl;
+ */
+struct wcn36xx_dxe_desc {
+	u32	ctrl;
+	u32	fr_len;
+
+	u32	src_addr_l;
+	u32	dst_addr_l;
+	u32	phy_next_l;
+	u32	src_addr_h;
+	u32	dst_addr_h;
+	u32	phy_next_h;
+} __packed;
+
+/* DXE Control block */
+struct wcn36xx_dxe_ctl {
+	struct wcn36xx_dxe_ctl	*next;
+	struct wcn36xx_dxe_desc	*desc;
+	unsigned int		desc_phy_addr;
+	int			ctl_blk_order;
+	struct sk_buff		*skb;
+	spinlock_t              skb_lock;
+	void			*bd_cpu_addr;
+	dma_addr_t		bd_phy_addr;
+};
+
+struct wcn36xx_dxe_ch {
+	enum wcn36xx_dxe_ch_type	ch_type;
+	void				*cpu_addr;
+	dma_addr_t			dma_addr;
+	enum wcn36xx_dxe_ch_desc_num	desc_num;
+	/* DXE control block ring */
+	struct wcn36xx_dxe_ctl		*head_blk_ctl;
+	struct wcn36xx_dxe_ctl		*tail_blk_ctl;
+
+	/* DXE channel specific configs */
+	u32				dxe_wq;
+	u32				ctrl_bd;
+	u32				ctrl_skb;
+	u32				reg_ctrl;
+	u32				def_ctrl;
+};
+
+/* Memory Pool for BD headers */
+struct wcn36xx_dxe_mem_pool {
+	int		chunk_size;
+	void		*virt_addr;
+	dma_addr_t	phy_addr;
+};
+
+struct wcn36xx_vif;
+int wcn36xx_dxe_allocate_mem_pools(struct wcn36xx *wcn);
+void wcn36xx_dxe_free_mem_pools(struct wcn36xx *wcn);
+void wcn36xx_dxe_rx_frame(struct wcn36xx *wcn);
+int wcn36xx_dxe_alloc_ctl_blks(struct wcn36xx *wcn);
+void wcn36xx_dxe_free_ctl_blks(struct wcn36xx *wcn);
+int wcn36xx_dxe_init(struct wcn36xx *wcn);
+void wcn36xx_dxe_deinit(struct wcn36xx *wcn);
+int wcn36xx_dxe_init_channels(struct wcn36xx *wcn);
+int wcn36xx_dxe_tx_frame(struct wcn36xx *wcn,
+			 struct wcn36xx_vif *vif_priv,
+			 struct sk_buff *skb,
+			 bool is_low);
+void wcn36xx_dxe_tx_ack_ind(struct wcn36xx *wcn, u32 status);
+void *wcn36xx_dxe_get_next_bd(struct wcn36xx *wcn, bool is_low);
+#endif	/* _DXE_H_ */
diff --git a/drivers/net/wireless/ath/wcn36xx/hal.h b/drivers/net/wireless/ath/wcn36xx/hal.h
new file mode 100644
index 000000000000..c02dbc618724
--- /dev/null
+++ b/drivers/net/wireless/ath/wcn36xx/hal.h
@@ -0,0 +1,4657 @@
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _HAL_H_
+#define _HAL_H_
+
+/*---------------------------------------------------------------------------
+  API VERSIONING INFORMATION
+
+  The RIVA API is versioned as MAJOR.MINOR.VERSION.REVISION
+  The MAJOR is incremented for major product/architecture changes
+      (and then MINOR/VERSION/REVISION are zeroed)
+  The MINOR is incremented for minor product/architecture changes
+      (and then VERSION/REVISION are zeroed)
+  The VERSION is incremented if a significant API change occurs
+      (and then REVISION is zeroed)
+  The REVISION is incremented if an insignificant API change occurs
+      or if a new API is added
+  All values are in the range 0..255 (ie they are 8-bit values)
+ ---------------------------------------------------------------------------*/
+#define WCN36XX_HAL_VER_MAJOR 1
+#define WCN36XX_HAL_VER_MINOR 4
+#define WCN36XX_HAL_VER_VERSION 1
+#define WCN36XX_HAL_VER_REVISION 2
+
+/* This is to force compiler to use the maximum of an int ( 4 bytes ) */
+#define WCN36XX_HAL_MAX_ENUM_SIZE    0x7FFFFFFF
+#define WCN36XX_HAL_MSG_TYPE_MAX_ENUM_SIZE    0x7FFF
+
+/* Max no. of transmit categories */
+#define STACFG_MAX_TC    8
+
+/* The maximum value of access category */
+#define WCN36XX_HAL_MAX_AC  4
+
+#define WCN36XX_HAL_IPV4_ADDR_LEN       4
+
+#define WALN_HAL_STA_INVALID_IDX 0xFF
+#define WCN36XX_HAL_BSS_INVALID_IDX 0xFF
+
+/* Default Beacon template size */
+#define BEACON_TEMPLATE_SIZE 0x180
+
+/* Param Change Bitmap sent to HAL */
+#define PARAM_BCN_INTERVAL_CHANGED                      (1 << 0)
+#define PARAM_SHORT_PREAMBLE_CHANGED                 (1 << 1)
+#define PARAM_SHORT_SLOT_TIME_CHANGED                 (1 << 2)
+#define PARAM_llACOEXIST_CHANGED                            (1 << 3)
+#define PARAM_llBCOEXIST_CHANGED                            (1 << 4)
+#define PARAM_llGCOEXIST_CHANGED                            (1 << 5)
+#define PARAM_HT20MHZCOEXIST_CHANGED                  (1<<6)
+#define PARAM_NON_GF_DEVICES_PRESENT_CHANGED (1<<7)
+#define PARAM_RIFS_MODE_CHANGED                            (1<<8)
+#define PARAM_LSIG_TXOP_FULL_SUPPORT_CHANGED   (1<<9)
+#define PARAM_OBSS_MODE_CHANGED                               (1<<10)
+#define PARAM_BEACON_UPDATE_MASK \
+	(PARAM_BCN_INTERVAL_CHANGED |					\
+	 PARAM_SHORT_PREAMBLE_CHANGED |					\
+	 PARAM_SHORT_SLOT_TIME_CHANGED |				\
+	 PARAM_llACOEXIST_CHANGED |					\
+	 PARAM_llBCOEXIST_CHANGED |					\
+	 PARAM_llGCOEXIST_CHANGED |					\
+	 PARAM_HT20MHZCOEXIST_CHANGED |					\
+	 PARAM_NON_GF_DEVICES_PRESENT_CHANGED |				\
+	 PARAM_RIFS_MODE_CHANGED |					\
+	 PARAM_LSIG_TXOP_FULL_SUPPORT_CHANGED |				\
+	 PARAM_OBSS_MODE_CHANGED)
+
+/* dump command response Buffer size */
+#define DUMPCMD_RSP_BUFFER 100
+
+/* version string max length (including NULL) */
+#define WCN36XX_HAL_VERSION_LENGTH  64
+
+/* message types for messages exchanged between WDI and HAL */
+enum wcn36xx_hal_host_msg_type {
+	/* Init/De-Init */
+	WCN36XX_HAL_START_REQ = 0,
+	WCN36XX_HAL_START_RSP = 1,
+	WCN36XX_HAL_STOP_REQ = 2,
+	WCN36XX_HAL_STOP_RSP = 3,
+
+	/* Scan */
+	WCN36XX_HAL_INIT_SCAN_REQ = 4,
+	WCN36XX_HAL_INIT_SCAN_RSP = 5,
+	WCN36XX_HAL_START_SCAN_REQ = 6,
+	WCN36XX_HAL_START_SCAN_RSP = 7,
+	WCN36XX_HAL_END_SCAN_REQ = 8,
+	WCN36XX_HAL_END_SCAN_RSP = 9,
+	WCN36XX_HAL_FINISH_SCAN_REQ = 10,
+	WCN36XX_HAL_FINISH_SCAN_RSP = 11,
+
+	/* HW STA configuration/deconfiguration */
+	WCN36XX_HAL_CONFIG_STA_REQ = 12,
+	WCN36XX_HAL_CONFIG_STA_RSP = 13,
+	WCN36XX_HAL_DELETE_STA_REQ = 14,
+	WCN36XX_HAL_DELETE_STA_RSP = 15,
+	WCN36XX_HAL_CONFIG_BSS_REQ = 16,
+	WCN36XX_HAL_CONFIG_BSS_RSP = 17,
+	WCN36XX_HAL_DELETE_BSS_REQ = 18,
+	WCN36XX_HAL_DELETE_BSS_RSP = 19,
+
+	/* Infra STA asscoiation */
+	WCN36XX_HAL_JOIN_REQ = 20,
+	WCN36XX_HAL_JOIN_RSP = 21,
+	WCN36XX_HAL_POST_ASSOC_REQ = 22,
+	WCN36XX_HAL_POST_ASSOC_RSP = 23,
+
+	/* Security */
+	WCN36XX_HAL_SET_BSSKEY_REQ = 24,
+	WCN36XX_HAL_SET_BSSKEY_RSP = 25,
+	WCN36XX_HAL_SET_STAKEY_REQ = 26,
+	WCN36XX_HAL_SET_STAKEY_RSP = 27,
+	WCN36XX_HAL_RMV_BSSKEY_REQ = 28,
+	WCN36XX_HAL_RMV_BSSKEY_RSP = 29,
+	WCN36XX_HAL_RMV_STAKEY_REQ = 30,
+	WCN36XX_HAL_RMV_STAKEY_RSP = 31,
+
+	/* Qos Related */
+	WCN36XX_HAL_ADD_TS_REQ = 32,
+	WCN36XX_HAL_ADD_TS_RSP = 33,
+	WCN36XX_HAL_DEL_TS_REQ = 34,
+	WCN36XX_HAL_DEL_TS_RSP = 35,
+	WCN36XX_HAL_UPD_EDCA_PARAMS_REQ = 36,
+	WCN36XX_HAL_UPD_EDCA_PARAMS_RSP = 37,
+	WCN36XX_HAL_ADD_BA_REQ = 38,
+	WCN36XX_HAL_ADD_BA_RSP = 39,
+	WCN36XX_HAL_DEL_BA_REQ = 40,
+	WCN36XX_HAL_DEL_BA_RSP = 41,
+
+	WCN36XX_HAL_CH_SWITCH_REQ = 42,
+	WCN36XX_HAL_CH_SWITCH_RSP = 43,
+	WCN36XX_HAL_SET_LINK_ST_REQ = 44,
+	WCN36XX_HAL_SET_LINK_ST_RSP = 45,
+	WCN36XX_HAL_GET_STATS_REQ = 46,
+	WCN36XX_HAL_GET_STATS_RSP = 47,
+	WCN36XX_HAL_UPDATE_CFG_REQ = 48,
+	WCN36XX_HAL_UPDATE_CFG_RSP = 49,
+
+	WCN36XX_HAL_MISSED_BEACON_IND = 50,
+	WCN36XX_HAL_UNKNOWN_ADDR2_FRAME_RX_IND = 51,
+	WCN36XX_HAL_MIC_FAILURE_IND = 52,
+	WCN36XX_HAL_FATAL_ERROR_IND = 53,
+	WCN36XX_HAL_SET_KEYDONE_MSG = 54,
+
+	/* NV Interface */
+	WCN36XX_HAL_DOWNLOAD_NV_REQ = 55,
+	WCN36XX_HAL_DOWNLOAD_NV_RSP = 56,
+
+	WCN36XX_HAL_ADD_BA_SESSION_REQ = 57,
+	WCN36XX_HAL_ADD_BA_SESSION_RSP = 58,
+	WCN36XX_HAL_TRIGGER_BA_REQ = 59,
+	WCN36XX_HAL_TRIGGER_BA_RSP = 60,
+	WCN36XX_HAL_UPDATE_BEACON_REQ = 61,
+	WCN36XX_HAL_UPDATE_BEACON_RSP = 62,
+	WCN36XX_HAL_SEND_BEACON_REQ = 63,
+	WCN36XX_HAL_SEND_BEACON_RSP = 64,
+
+	WCN36XX_HAL_SET_BCASTKEY_REQ = 65,
+	WCN36XX_HAL_SET_BCASTKEY_RSP = 66,
+	WCN36XX_HAL_DELETE_STA_CONTEXT_IND = 67,
+	WCN36XX_HAL_UPDATE_PROBE_RSP_TEMPLATE_REQ = 68,
+	WCN36XX_HAL_UPDATE_PROBE_RSP_TEMPLATE_RSP = 69,
+
+	/* PTT interface support */
+	WCN36XX_HAL_PROCESS_PTT_REQ = 70,
+	WCN36XX_HAL_PROCESS_PTT_RSP = 71,
+
+	/* BTAMP related events */
+	WCN36XX_HAL_SIGNAL_BTAMP_EVENT_REQ = 72,
+	WCN36XX_HAL_SIGNAL_BTAMP_EVENT_RSP = 73,
+	WCN36XX_HAL_TL_HAL_FLUSH_AC_REQ = 74,
+	WCN36XX_HAL_TL_HAL_FLUSH_AC_RSP = 75,
+
+	WCN36XX_HAL_ENTER_IMPS_REQ = 76,
+	WCN36XX_HAL_EXIT_IMPS_REQ = 77,
+	WCN36XX_HAL_ENTER_BMPS_REQ = 78,
+	WCN36XX_HAL_EXIT_BMPS_REQ = 79,
+	WCN36XX_HAL_ENTER_UAPSD_REQ = 80,
+	WCN36XX_HAL_EXIT_UAPSD_REQ = 81,
+	WCN36XX_HAL_UPDATE_UAPSD_PARAM_REQ = 82,
+	WCN36XX_HAL_CONFIGURE_RXP_FILTER_REQ = 83,
+	WCN36XX_HAL_ADD_BCN_FILTER_REQ = 84,
+	WCN36XX_HAL_REM_BCN_FILTER_REQ = 85,
+	WCN36XX_HAL_ADD_WOWL_BCAST_PTRN = 86,
+	WCN36XX_HAL_DEL_WOWL_BCAST_PTRN = 87,
+	WCN36XX_HAL_ENTER_WOWL_REQ = 88,
+	WCN36XX_HAL_EXIT_WOWL_REQ = 89,
+	WCN36XX_HAL_HOST_OFFLOAD_REQ = 90,
+	WCN36XX_HAL_SET_RSSI_THRESH_REQ = 91,
+	WCN36XX_HAL_GET_RSSI_REQ = 92,
+	WCN36XX_HAL_SET_UAPSD_AC_PARAMS_REQ = 93,
+	WCN36XX_HAL_CONFIGURE_APPS_CPU_WAKEUP_STATE_REQ = 94,
+
+	WCN36XX_HAL_ENTER_IMPS_RSP = 95,
+	WCN36XX_HAL_EXIT_IMPS_RSP = 96,
+	WCN36XX_HAL_ENTER_BMPS_RSP = 97,
+	WCN36XX_HAL_EXIT_BMPS_RSP = 98,
+	WCN36XX_HAL_ENTER_UAPSD_RSP = 99,
+	WCN36XX_HAL_EXIT_UAPSD_RSP = 100,
+	WCN36XX_HAL_SET_UAPSD_AC_PARAMS_RSP = 101,
+	WCN36XX_HAL_UPDATE_UAPSD_PARAM_RSP = 102,
+	WCN36XX_HAL_CONFIGURE_RXP_FILTER_RSP = 103,
+	WCN36XX_HAL_ADD_BCN_FILTER_RSP = 104,
+	WCN36XX_HAL_REM_BCN_FILTER_RSP = 105,
+	WCN36XX_HAL_SET_RSSI_THRESH_RSP = 106,
+	WCN36XX_HAL_HOST_OFFLOAD_RSP = 107,
+	WCN36XX_HAL_ADD_WOWL_BCAST_PTRN_RSP = 108,
+	WCN36XX_HAL_DEL_WOWL_BCAST_PTRN_RSP = 109,
+	WCN36XX_HAL_ENTER_WOWL_RSP = 110,
+	WCN36XX_HAL_EXIT_WOWL_RSP = 111,
+	WCN36XX_HAL_RSSI_NOTIFICATION_IND = 112,
+	WCN36XX_HAL_GET_RSSI_RSP = 113,
+	WCN36XX_HAL_CONFIGURE_APPS_CPU_WAKEUP_STATE_RSP = 114,
+
+	/* 11k related events */
+	WCN36XX_HAL_SET_MAX_TX_POWER_REQ = 115,
+	WCN36XX_HAL_SET_MAX_TX_POWER_RSP = 116,
+
+	/* 11R related msgs */
+	WCN36XX_HAL_AGGR_ADD_TS_REQ = 117,
+	WCN36XX_HAL_AGGR_ADD_TS_RSP = 118,
+
+	/* P2P  WLAN_FEATURE_P2P */
+	WCN36XX_HAL_SET_P2P_GONOA_REQ = 119,
+	WCN36XX_HAL_SET_P2P_GONOA_RSP = 120,
+
+	/* WLAN Dump commands */
+	WCN36XX_HAL_DUMP_COMMAND_REQ = 121,
+	WCN36XX_HAL_DUMP_COMMAND_RSP = 122,
+
+	/* OEM_DATA FEATURE SUPPORT */
+	WCN36XX_HAL_START_OEM_DATA_REQ = 123,
+	WCN36XX_HAL_START_OEM_DATA_RSP = 124,
+
+	/* ADD SELF STA REQ and RSP */
+	WCN36XX_HAL_ADD_STA_SELF_REQ = 125,
+	WCN36XX_HAL_ADD_STA_SELF_RSP = 126,
+
+	/* DEL SELF STA SUPPORT */
+	WCN36XX_HAL_DEL_STA_SELF_REQ = 127,
+	WCN36XX_HAL_DEL_STA_SELF_RSP = 128,
+
+	/* Coex Indication */
+	WCN36XX_HAL_COEX_IND = 129,
+
+	/* Tx Complete Indication */
+	WCN36XX_HAL_OTA_TX_COMPL_IND = 130,
+
+	/* Host Suspend/resume messages */
+	WCN36XX_HAL_HOST_SUSPEND_IND = 131,
+	WCN36XX_HAL_HOST_RESUME_REQ = 132,
+	WCN36XX_HAL_HOST_RESUME_RSP = 133,
+
+	WCN36XX_HAL_SET_TX_POWER_REQ = 134,
+	WCN36XX_HAL_SET_TX_POWER_RSP = 135,
+	WCN36XX_HAL_GET_TX_POWER_REQ = 136,
+	WCN36XX_HAL_GET_TX_POWER_RSP = 137,
+
+	WCN36XX_HAL_P2P_NOA_ATTR_IND = 138,
+
+	WCN36XX_HAL_ENABLE_RADAR_DETECT_REQ = 139,
+	WCN36XX_HAL_ENABLE_RADAR_DETECT_RSP = 140,
+	WCN36XX_HAL_GET_TPC_REPORT_REQ = 141,
+	WCN36XX_HAL_GET_TPC_REPORT_RSP = 142,
+	WCN36XX_HAL_RADAR_DETECT_IND = 143,
+	WCN36XX_HAL_RADAR_DETECT_INTR_IND = 144,
+	WCN36XX_HAL_KEEP_ALIVE_REQ = 145,
+	WCN36XX_HAL_KEEP_ALIVE_RSP = 146,
+
+	/* PNO messages */
+	WCN36XX_HAL_SET_PREF_NETWORK_REQ = 147,
+	WCN36XX_HAL_SET_PREF_NETWORK_RSP = 148,
+	WCN36XX_HAL_SET_RSSI_FILTER_REQ = 149,
+	WCN36XX_HAL_SET_RSSI_FILTER_RSP = 150,
+	WCN36XX_HAL_UPDATE_SCAN_PARAM_REQ = 151,
+	WCN36XX_HAL_UPDATE_SCAN_PARAM_RSP = 152,
+	WCN36XX_HAL_PREF_NETW_FOUND_IND = 153,
+
+	WCN36XX_HAL_SET_TX_PER_TRACKING_REQ = 154,
+	WCN36XX_HAL_SET_TX_PER_TRACKING_RSP = 155,
+	WCN36XX_HAL_TX_PER_HIT_IND = 156,
+
+	WCN36XX_HAL_8023_MULTICAST_LIST_REQ = 157,
+	WCN36XX_HAL_8023_MULTICAST_LIST_RSP = 158,
+
+	WCN36XX_HAL_SET_PACKET_FILTER_REQ = 159,
+	WCN36XX_HAL_SET_PACKET_FILTER_RSP = 160,
+	WCN36XX_HAL_PACKET_FILTER_MATCH_COUNT_REQ = 161,
+	WCN36XX_HAL_PACKET_FILTER_MATCH_COUNT_RSP = 162,
+	WCN36XX_HAL_CLEAR_PACKET_FILTER_REQ = 163,
+	WCN36XX_HAL_CLEAR_PACKET_FILTER_RSP = 164,
+
+	/*
+	 * This is temp fix. Should be removed once Host and Riva code is
+	 * in sync.
+	 */
+	WCN36XX_HAL_INIT_SCAN_CON_REQ = 165,
+
+	WCN36XX_HAL_SET_POWER_PARAMS_REQ = 166,
+	WCN36XX_HAL_SET_POWER_PARAMS_RSP = 167,
+
+	WCN36XX_HAL_TSM_STATS_REQ = 168,
+	WCN36XX_HAL_TSM_STATS_RSP = 169,
+
+	/* wake reason indication (WOW) */
+	WCN36XX_HAL_WAKE_REASON_IND = 170,
+
+	/* GTK offload support */
+	WCN36XX_HAL_GTK_OFFLOAD_REQ = 171,
+	WCN36XX_HAL_GTK_OFFLOAD_RSP = 172,
+	WCN36XX_HAL_GTK_OFFLOAD_GETINFO_REQ = 173,
+	WCN36XX_HAL_GTK_OFFLOAD_GETINFO_RSP = 174,
+
+	WCN36XX_HAL_FEATURE_CAPS_EXCHANGE_REQ = 175,
+	WCN36XX_HAL_FEATURE_CAPS_EXCHANGE_RSP = 176,
+	WCN36XX_HAL_EXCLUDE_UNENCRYPTED_IND = 177,
+
+	WCN36XX_HAL_SET_THERMAL_MITIGATION_REQ = 178,
+	WCN36XX_HAL_SET_THERMAL_MITIGATION_RSP = 179,
+
+	WCN36XX_HAL_UPDATE_VHT_OP_MODE_REQ = 182,
+	WCN36XX_HAL_UPDATE_VHT_OP_MODE_RSP = 183,
+
+	WCN36XX_HAL_P2P_NOA_START_IND = 184,
+
+	WCN36XX_HAL_GET_ROAM_RSSI_REQ = 185,
+	WCN36XX_HAL_GET_ROAM_RSSI_RSP = 186,
+
+	WCN36XX_HAL_CLASS_B_STATS_IND = 187,
+	WCN36XX_HAL_DEL_BA_IND = 188,
+	WCN36XX_HAL_DHCP_START_IND = 189,
+	WCN36XX_HAL_DHCP_STOP_IND = 190,
+
+	WCN36XX_HAL_MSG_MAX = WCN36XX_HAL_MSG_TYPE_MAX_ENUM_SIZE
+};
+
+/* Enumeration for Version */
+enum wcn36xx_hal_host_msg_version {
+	WCN36XX_HAL_MSG_VERSION0 = 0,
+	WCN36XX_HAL_MSG_VERSION1 = 1,
+	/* define as 2 bytes data */
+	WCN36XX_HAL_MSG_WCNSS_CTRL_VERSION = 0x7FFF,
+	WCN36XX_HAL_MSG_VERSION_MAX_FIELD = WCN36XX_HAL_MSG_WCNSS_CTRL_VERSION
+};
+
+enum driver_type {
+	DRIVER_TYPE_PRODUCTION = 0,
+	DRIVER_TYPE_MFG = 1,
+	DRIVER_TYPE_DVT = 2,
+	DRIVER_TYPE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+enum wcn36xx_hal_stop_type {
+	HAL_STOP_TYPE_SYS_RESET,
+	HAL_STOP_TYPE_SYS_DEEP_SLEEP,
+	HAL_STOP_TYPE_RF_KILL,
+	HAL_STOP_TYPE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+enum wcn36xx_hal_sys_mode {
+	HAL_SYS_MODE_NORMAL,
+	HAL_SYS_MODE_LEARN,
+	HAL_SYS_MODE_SCAN,
+	HAL_SYS_MODE_PROMISC,
+	HAL_SYS_MODE_SUSPEND_LINK,
+	HAL_SYS_MODE_ROAM_SCAN,
+	HAL_SYS_MODE_ROAM_SUSPEND_LINK,
+	HAL_SYS_MODE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+enum phy_chan_bond_state {
+	/* 20MHz IF bandwidth centered on IF carrier */
+	PHY_SINGLE_CHANNEL_CENTERED = 0,
+
+	/* 40MHz IF bandwidth with lower 20MHz supporting the primary channel */
+	PHY_DOUBLE_CHANNEL_LOW_PRIMARY = 1,
+
+	/* 40MHz IF bandwidth centered on IF carrier */
+	PHY_DOUBLE_CHANNEL_CENTERED = 2,
+
+	/* 40MHz IF bandwidth with higher 20MHz supporting the primary ch */
+	PHY_DOUBLE_CHANNEL_HIGH_PRIMARY = 3,
+
+	/* 20/40MHZ offset LOW 40/80MHZ offset CENTERED */
+	PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_CENTERED = 4,
+
+	/* 20/40MHZ offset CENTERED 40/80MHZ offset CENTERED */
+	PHY_QUADRUPLE_CHANNEL_20MHZ_CENTERED_40MHZ_CENTERED = 5,
+
+	/* 20/40MHZ offset HIGH 40/80MHZ offset CENTERED */
+	PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_CENTERED = 6,
+
+	/* 20/40MHZ offset LOW 40/80MHZ offset LOW */
+	PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_LOW = 7,
+
+	/* 20/40MHZ offset HIGH 40/80MHZ offset LOW */
+	PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_LOW = 8,
+
+	/* 20/40MHZ offset LOW 40/80MHZ offset HIGH */
+	PHY_QUADRUPLE_CHANNEL_20MHZ_LOW_40MHZ_HIGH = 9,
+
+	/* 20/40MHZ offset-HIGH 40/80MHZ offset HIGH */
+	PHY_QUADRUPLE_CHANNEL_20MHZ_HIGH_40MHZ_HIGH = 10,
+
+	PHY_CHANNEL_BONDING_STATE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+/* Spatial Multiplexing(SM) Power Save mode */
+enum wcn36xx_hal_ht_mimo_state {
+	/* Static SM Power Save mode */
+	WCN36XX_HAL_HT_MIMO_PS_STATIC = 0,
+
+	/* Dynamic SM Power Save mode */
+	WCN36XX_HAL_HT_MIMO_PS_DYNAMIC = 1,
+
+	/* reserved */
+	WCN36XX_HAL_HT_MIMO_PS_NA = 2,
+
+	/* SM Power Save disabled */
+	WCN36XX_HAL_HT_MIMO_PS_NO_LIMIT = 3,
+
+	WCN36XX_HAL_HT_MIMO_PS_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+/* each station added has a rate mode which specifies the sta attributes */
+enum sta_rate_mode {
+	STA_TAURUS = 0,
+	STA_TITAN,
+	STA_POLARIS,
+	STA_11b,
+	STA_11bg,
+	STA_11a,
+	STA_11n,
+	STA_11ac,
+	STA_INVALID_RATE_MODE = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+/* 1,2,5.5,11 */
+#define WCN36XX_HAL_NUM_DSSS_RATES           4
+
+/* 6,9,12,18,24,36,48,54 */
+#define WCN36XX_HAL_NUM_OFDM_RATES           8
+
+/* 72,96,108 */
+#define WCN36XX_HAL_NUM_POLARIS_RATES       3
+
+#define WCN36XX_HAL_MAC_MAX_SUPPORTED_MCS_SET    16
+
+enum wcn36xx_hal_bss_type {
+	WCN36XX_HAL_INFRASTRUCTURE_MODE,
+
+	/* Added for softAP support */
+	WCN36XX_HAL_INFRA_AP_MODE,
+
+	WCN36XX_HAL_IBSS_MODE,
+
+	/* Added for BT-AMP support */
+	WCN36XX_HAL_BTAMP_STA_MODE,
+
+	/* Added for BT-AMP support */
+	WCN36XX_HAL_BTAMP_AP_MODE,
+
+	WCN36XX_HAL_AUTO_MODE,
+
+	WCN36XX_HAL_DONOT_USE_BSS_TYPE = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+enum wcn36xx_hal_nw_type {
+	WCN36XX_HAL_11A_NW_TYPE,
+	WCN36XX_HAL_11B_NW_TYPE,
+	WCN36XX_HAL_11G_NW_TYPE,
+	WCN36XX_HAL_11N_NW_TYPE,
+	WCN36XX_HAL_DONOT_USE_NW_TYPE = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+#define WCN36XX_HAL_MAC_RATESET_EID_MAX            12
+
+enum wcn36xx_hal_ht_operating_mode {
+	/* No Protection */
+	WCN36XX_HAL_HT_OP_MODE_PURE,
+
+	/* Overlap Legacy device present, protection is optional */
+	WCN36XX_HAL_HT_OP_MODE_OVERLAP_LEGACY,
+
+	/* No legacy device, but 20 MHz HT present */
+	WCN36XX_HAL_HT_OP_MODE_NO_LEGACY_20MHZ_HT,
+
+	/* Protection is required */
+	WCN36XX_HAL_HT_OP_MODE_MIXED,
+
+	WCN36XX_HAL_HT_OP_MODE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+/* Encryption type enum used with peer */
+enum ani_ed_type {
+	WCN36XX_HAL_ED_NONE,
+	WCN36XX_HAL_ED_WEP40,
+	WCN36XX_HAL_ED_WEP104,
+	WCN36XX_HAL_ED_TKIP,
+	WCN36XX_HAL_ED_CCMP,
+	WCN36XX_HAL_ED_WPI,
+	WCN36XX_HAL_ED_AES_128_CMAC,
+	WCN36XX_HAL_ED_NOT_IMPLEMENTED = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+#define WLAN_MAX_KEY_RSC_LEN                16
+#define WLAN_WAPI_KEY_RSC_LEN               16
+
+/* MAX key length when ULA is used */
+#define WCN36XX_HAL_MAC_MAX_KEY_LENGTH              32
+#define WCN36XX_HAL_MAC_MAX_NUM_OF_DEFAULT_KEYS     4
+
+/*
+ * Enum to specify whether key is used for TX only, RX only or both.
+ */
+enum ani_key_direction {
+	WCN36XX_HAL_TX_ONLY,
+	WCN36XX_HAL_RX_ONLY,
+	WCN36XX_HAL_TX_RX,
+	WCN36XX_HAL_TX_DEFAULT,
+	WCN36XX_HAL_DONOT_USE_KEY_DIRECTION = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+enum ani_wep_type {
+	WCN36XX_HAL_WEP_STATIC,
+	WCN36XX_HAL_WEP_DYNAMIC,
+	WCN36XX_HAL_WEP_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+enum wcn36xx_hal_link_state {
+
+	WCN36XX_HAL_LINK_IDLE_STATE = 0,
+	WCN36XX_HAL_LINK_PREASSOC_STATE = 1,
+	WCN36XX_HAL_LINK_POSTASSOC_STATE = 2,
+	WCN36XX_HAL_LINK_AP_STATE = 3,
+	WCN36XX_HAL_LINK_IBSS_STATE = 4,
+
+	/* BT-AMP Case */
+	WCN36XX_HAL_LINK_BTAMP_PREASSOC_STATE = 5,
+	WCN36XX_HAL_LINK_BTAMP_POSTASSOC_STATE = 6,
+	WCN36XX_HAL_LINK_BTAMP_AP_STATE = 7,
+	WCN36XX_HAL_LINK_BTAMP_STA_STATE = 8,
+
+	/* Reserved for HAL Internal Use */
+	WCN36XX_HAL_LINK_LEARN_STATE = 9,
+	WCN36XX_HAL_LINK_SCAN_STATE = 10,
+	WCN36XX_HAL_LINK_FINISH_SCAN_STATE = 11,
+	WCN36XX_HAL_LINK_INIT_CAL_STATE = 12,
+	WCN36XX_HAL_LINK_FINISH_CAL_STATE = 13,
+	WCN36XX_HAL_LINK_LISTEN_STATE = 14,
+
+	WCN36XX_HAL_LINK_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+enum wcn36xx_hal_stats_mask {
+	HAL_SUMMARY_STATS_INFO = 0x00000001,
+	HAL_GLOBAL_CLASS_A_STATS_INFO = 0x00000002,
+	HAL_GLOBAL_CLASS_B_STATS_INFO = 0x00000004,
+	HAL_GLOBAL_CLASS_C_STATS_INFO = 0x00000008,
+	HAL_GLOBAL_CLASS_D_STATS_INFO = 0x00000010,
+	HAL_PER_STA_STATS_INFO = 0x00000020
+};
+
+/* BT-AMP events type */
+enum bt_amp_event_type {
+	BTAMP_EVENT_CONNECTION_START,
+	BTAMP_EVENT_CONNECTION_STOP,
+	BTAMP_EVENT_CONNECTION_TERMINATED,
+
+	/* This and beyond are invalid values */
+	BTAMP_EVENT_TYPE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE,
+};
+
+/* PE Statistics */
+enum pe_stats_mask {
+	PE_SUMMARY_STATS_INFO = 0x00000001,
+	PE_GLOBAL_CLASS_A_STATS_INFO = 0x00000002,
+	PE_GLOBAL_CLASS_B_STATS_INFO = 0x00000004,
+	PE_GLOBAL_CLASS_C_STATS_INFO = 0x00000008,
+	PE_GLOBAL_CLASS_D_STATS_INFO = 0x00000010,
+	PE_PER_STA_STATS_INFO = 0x00000020,
+
+	/* This and beyond are invalid values */
+	PE_STATS_TYPE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+/*
+ * Configuration Parameter IDs
+ */
+#define WCN36XX_HAL_CFG_STA_ID				0
+#define WCN36XX_HAL_CFG_CURRENT_TX_ANTENNA		1
+#define WCN36XX_HAL_CFG_CURRENT_RX_ANTENNA		2
+#define WCN36XX_HAL_CFG_LOW_GAIN_OVERRIDE		3
+#define WCN36XX_HAL_CFG_POWER_STATE_PER_CHAIN		4
+#define WCN36XX_HAL_CFG_CAL_PERIOD			5
+#define WCN36XX_HAL_CFG_CAL_CONTROL			6
+#define WCN36XX_HAL_CFG_PROXIMITY			7
+#define WCN36XX_HAL_CFG_NETWORK_DENSITY			8
+#define WCN36XX_HAL_CFG_MAX_MEDIUM_TIME			9
+#define WCN36XX_HAL_CFG_MAX_MPDUS_IN_AMPDU		10
+#define WCN36XX_HAL_CFG_RTS_THRESHOLD			11
+#define WCN36XX_HAL_CFG_SHORT_RETRY_LIMIT		12
+#define WCN36XX_HAL_CFG_LONG_RETRY_LIMIT		13
+#define WCN36XX_HAL_CFG_FRAGMENTATION_THRESHOLD		14
+#define WCN36XX_HAL_CFG_DYNAMIC_THRESHOLD_ZERO		15
+#define WCN36XX_HAL_CFG_DYNAMIC_THRESHOLD_ONE		16
+#define WCN36XX_HAL_CFG_DYNAMIC_THRESHOLD_TWO		17
+#define WCN36XX_HAL_CFG_FIXED_RATE			18
+#define WCN36XX_HAL_CFG_RETRYRATE_POLICY		19
+#define WCN36XX_HAL_CFG_RETRYRATE_SECONDARY		20
+#define WCN36XX_HAL_CFG_RETRYRATE_TERTIARY		21
+#define WCN36XX_HAL_CFG_FORCE_POLICY_PROTECTION		22
+#define WCN36XX_HAL_CFG_FIXED_RATE_MULTICAST_24GHZ	23
+#define WCN36XX_HAL_CFG_FIXED_RATE_MULTICAST_5GHZ	24
+#define WCN36XX_HAL_CFG_DEFAULT_RATE_INDEX_24GHZ	25
+#define WCN36XX_HAL_CFG_DEFAULT_RATE_INDEX_5GHZ		26
+#define WCN36XX_HAL_CFG_MAX_BA_SESSIONS			27
+#define WCN36XX_HAL_CFG_PS_DATA_INACTIVITY_TIMEOUT	28
+#define WCN36XX_HAL_CFG_PS_ENABLE_BCN_FILTER		29
+#define WCN36XX_HAL_CFG_PS_ENABLE_RSSI_MONITOR		30
+#define WCN36XX_HAL_CFG_NUM_BEACON_PER_RSSI_AVERAGE	31
+#define WCN36XX_HAL_CFG_STATS_PERIOD			32
+#define WCN36XX_HAL_CFG_CFP_MAX_DURATION		33
+#define WCN36XX_HAL_CFG_FRAME_TRANS_ENABLED		34
+#define WCN36XX_HAL_CFG_DTIM_PERIOD			35
+#define WCN36XX_HAL_CFG_EDCA_WMM_ACBK			36
+#define WCN36XX_HAL_CFG_EDCA_WMM_ACBE			37
+#define WCN36XX_HAL_CFG_EDCA_WMM_ACVO			38
+#define WCN36XX_HAL_CFG_EDCA_WMM_ACVI			39
+#define WCN36XX_HAL_CFG_BA_THRESHOLD_HIGH		40
+#define WCN36XX_HAL_CFG_MAX_BA_BUFFERS			41
+#define WCN36XX_HAL_CFG_RPE_POLLING_THRESHOLD		42
+#define WCN36XX_HAL_CFG_RPE_AGING_THRESHOLD_FOR_AC0_REG	43
+#define WCN36XX_HAL_CFG_RPE_AGING_THRESHOLD_FOR_AC1_REG	44
+#define WCN36XX_HAL_CFG_RPE_AGING_THRESHOLD_FOR_AC2_REG	45
+#define WCN36XX_HAL_CFG_RPE_AGING_THRESHOLD_FOR_AC3_REG	46
+#define WCN36XX_HAL_CFG_NO_OF_ONCHIP_REORDER_SESSIONS	47
+#define WCN36XX_HAL_CFG_PS_LISTEN_INTERVAL		48
+#define WCN36XX_HAL_CFG_PS_HEART_BEAT_THRESHOLD		49
+#define WCN36XX_HAL_CFG_PS_NTH_BEACON_FILTER		50
+#define WCN36XX_HAL_CFG_PS_MAX_PS_POLL			51
+#define WCN36XX_HAL_CFG_PS_MIN_RSSI_THRESHOLD		52
+#define WCN36XX_HAL_CFG_PS_RSSI_FILTER_PERIOD		53
+#define WCN36XX_HAL_CFG_PS_BROADCAST_FRAME_FILTER_ENABLE 54
+#define WCN36XX_HAL_CFG_PS_IGNORE_DTIM			55
+#define WCN36XX_HAL_CFG_PS_ENABLE_BCN_EARLY_TERM	56
+#define WCN36XX_HAL_CFG_DYNAMIC_PS_POLL_VALUE		57
+#define WCN36XX_HAL_CFG_PS_NULLDATA_AP_RESP_TIMEOUT	58
+#define WCN36XX_HAL_CFG_TELE_BCN_WAKEUP_EN		59
+#define WCN36XX_HAL_CFG_TELE_BCN_TRANS_LI		60
+#define WCN36XX_HAL_CFG_TELE_BCN_TRANS_LI_IDLE_BCNS	61
+#define WCN36XX_HAL_CFG_TELE_BCN_MAX_LI			62
+#define WCN36XX_HAL_CFG_TELE_BCN_MAX_LI_IDLE_BCNS	63
+#define WCN36XX_HAL_CFG_TX_PWR_CTRL_ENABLE		64
+#define WCN36XX_HAL_CFG_VALID_RADAR_CHANNEL_LIST	65
+#define WCN36XX_HAL_CFG_TX_POWER_24_20			66
+#define WCN36XX_HAL_CFG_TX_POWER_24_40			67
+#define WCN36XX_HAL_CFG_TX_POWER_50_20			68
+#define WCN36XX_HAL_CFG_TX_POWER_50_40			69
+#define WCN36XX_HAL_CFG_MCAST_BCAST_FILTER_SETTING	70
+#define WCN36XX_HAL_CFG_BCN_EARLY_TERM_WAKEUP_INTERVAL	71
+#define WCN36XX_HAL_CFG_MAX_TX_POWER_2_4		72
+#define WCN36XX_HAL_CFG_MAX_TX_POWER_5			73
+#define WCN36XX_HAL_CFG_INFRA_STA_KEEP_ALIVE_PERIOD	74
+#define WCN36XX_HAL_CFG_ENABLE_CLOSE_LOOP		75
+#define WCN36XX_HAL_CFG_BTC_EXECUTION_MODE		76
+#define WCN36XX_HAL_CFG_BTC_DHCP_BT_SLOTS_TO_BLOCK	77
+#define WCN36XX_HAL_CFG_BTC_A2DP_DHCP_BT_SUB_INTERVALS	78
+#define WCN36XX_HAL_CFG_PS_TX_INACTIVITY_TIMEOUT	79
+#define WCN36XX_HAL_CFG_WCNSS_API_VERSION		80
+#define WCN36XX_HAL_CFG_AP_KEEPALIVE_TIMEOUT		81
+#define WCN36XX_HAL_CFG_GO_KEEPALIVE_TIMEOUT		82
+#define WCN36XX_HAL_CFG_ENABLE_MC_ADDR_LIST		83
+#define WCN36XX_HAL_CFG_BTC_STATIC_LEN_INQ_BT		84
+#define WCN36XX_HAL_CFG_BTC_STATIC_LEN_PAGE_BT		85
+#define WCN36XX_HAL_CFG_BTC_STATIC_LEN_CONN_BT		86
+#define WCN36XX_HAL_CFG_BTC_STATIC_LEN_LE_BT		87
+#define WCN36XX_HAL_CFG_BTC_STATIC_LEN_INQ_WLAN		88
+#define WCN36XX_HAL_CFG_BTC_STATIC_LEN_PAGE_WLAN	89
+#define WCN36XX_HAL_CFG_BTC_STATIC_LEN_CONN_WLAN	90
+#define WCN36XX_HAL_CFG_BTC_STATIC_LEN_LE_WLAN		91
+#define WCN36XX_HAL_CFG_BTC_DYN_MAX_LEN_BT		92
+#define WCN36XX_HAL_CFG_BTC_DYN_MAX_LEN_WLAN		93
+#define WCN36XX_HAL_CFG_BTC_MAX_SCO_BLOCK_PERC		94
+#define WCN36XX_HAL_CFG_BTC_DHCP_PROT_ON_A2DP		95
+#define WCN36XX_HAL_CFG_BTC_DHCP_PROT_ON_SCO		96
+#define WCN36XX_HAL_CFG_ENABLE_UNICAST_FILTER		97
+#define WCN36XX_HAL_CFG_MAX_ASSOC_LIMIT			98
+#define WCN36XX_HAL_CFG_ENABLE_LPWR_IMG_TRANSITION	99
+#define WCN36XX_HAL_CFG_ENABLE_MCC_ADAPTIVE_SCHEDULER	100
+#define WCN36XX_HAL_CFG_ENABLE_DETECT_PS_SUPPORT	101
+#define WCN36XX_HAL_CFG_AP_LINK_MONITOR_TIMEOUT		102
+#define WCN36XX_HAL_CFG_BTC_DWELL_TIME_MULTIPLIER	103
+#define WCN36XX_HAL_CFG_ENABLE_TDLS_OXYGEN_MODE		104
+#define WCN36XX_HAL_CFG_MAX_PARAMS			105
+
+/* Message definitons - All the messages below need to be packed */
+
+/* Definition for HAL API Version. */
+struct wcnss_wlan_version {
+	u8 revision;
+	u8 version;
+	u8 minor;
+	u8 major;
+} __packed;
+
+/* Definition for Encryption Keys */
+struct wcn36xx_hal_keys {
+	u8 id;
+
+	/* 0 for multicast */
+	u8 unicast;
+
+	enum ani_key_direction direction;
+
+	/* Usage is unknown */
+	u8 rsc[WLAN_MAX_KEY_RSC_LEN];
+
+	/* =1 for authenticator,=0 for supplicant */
+	u8 pae_role;
+
+	u16 length;
+	u8 key[WCN36XX_HAL_MAC_MAX_KEY_LENGTH];
+} __packed;
+
+/*
+ * set_sta_key_params Moving here since it is shared by
+ * configbss/setstakey msgs
+ */
+struct wcn36xx_hal_set_sta_key_params {
+	/* STA Index */
+	u16 sta_index;
+
+	/* Encryption Type used with peer */
+	enum ani_ed_type enc_type;
+
+	/* STATIC/DYNAMIC - valid only for WEP */
+	enum ani_wep_type wep_type;
+
+	/* Default WEP key, valid only for static WEP, must between 0 and 3. */
+	u8 def_wep_idx;
+
+	/* valid only for non-static WEP encyrptions */
+	struct wcn36xx_hal_keys key[WCN36XX_HAL_MAC_MAX_NUM_OF_DEFAULT_KEYS];
+
+	/*
+	 * Control for Replay Count, 1= Single TID based replay count on Tx
+	 * 0 = Per TID based replay count on TX
+	 */
+	u8 single_tid_rc;
+
+} __packed;
+
+/* 4-byte control message header used by HAL*/
+struct wcn36xx_hal_msg_header {
+	enum wcn36xx_hal_host_msg_type msg_type:16;
+	enum wcn36xx_hal_host_msg_version msg_version:16;
+	u32 len;
+} __packed;
+
+/* Config format required by HAL for each CFG item*/
+struct wcn36xx_hal_cfg {
+	/* Cfg Id. The Id required by HAL is exported by HAL
+	 * in shared header file between UMAC and HAL.*/
+	u16 id;
+
+	/* Length of the Cfg. This parameter is used to go to next cfg
+	 * in the TLV format.*/
+	u16 len;
+
+	/* Padding bytes for unaligned address's */
+	u16 pad_bytes;
+
+	/* Reserve bytes for making cfgVal to align address */
+	u16 reserve;
+
+	/* Following the uCfgLen field there should be a 'uCfgLen' bytes
+	 * containing the uCfgValue ; u8 uCfgValue[uCfgLen] */
+} __packed;
+
+struct wcn36xx_hal_mac_start_parameters {
+	/* Drive Type - Production or FTM etc */
+	enum driver_type type;
+
+	/* Length of the config buffer */
+	u32 len;
+
+	/* Following this there is a TLV formatted buffer of length
+	 * "len" bytes containing all config values.
+	 * The TLV is expected to be formatted like this:
+	 * 0           15            31           31+CFG_LEN-1        length-1
+	 * |   CFG_ID   |   CFG_LEN   |   CFG_BODY    |  CFG_ID  |......|
+	 */
+} __packed;
+
+struct wcn36xx_hal_mac_start_req_msg {
+	/* config buffer must start in TLV format just here */
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_mac_start_parameters params;
+} __packed;
+
+struct wcn36xx_hal_mac_start_rsp_params {
+	/* success or failure */
+	u16 status;
+
+	/* Max number of STA supported by the device */
+	u8 stations;
+
+	/* Max number of BSS supported by the device */
+	u8 bssids;
+
+	/* API Version */
+	struct wcnss_wlan_version version;
+
+	/* CRM build information */
+	u8 crm_version[WCN36XX_HAL_VERSION_LENGTH];
+
+	/* hardware/chipset/misc version information */
+	u8 wlan_version[WCN36XX_HAL_VERSION_LENGTH];
+
+} __packed;
+
+struct wcn36xx_hal_mac_start_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_mac_start_rsp_params start_rsp_params;
+} __packed;
+
+struct wcn36xx_hal_mac_stop_req_params {
+	/* The reason for which the device is being stopped */
+	enum wcn36xx_hal_stop_type reason;
+
+} __packed;
+
+struct wcn36xx_hal_mac_stop_req_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_mac_stop_req_params stop_req_params;
+} __packed;
+
+struct wcn36xx_hal_mac_stop_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+} __packed;
+
+struct wcn36xx_hal_update_cfg_req_msg {
+	/*
+	 * Note: The length specified in tHalUpdateCfgReqMsg messages should be
+	 * header.msgLen = sizeof(tHalUpdateCfgReqMsg) + uConfigBufferLen
+	 */
+	struct wcn36xx_hal_msg_header header;
+
+	/* Length of the config buffer. Allows UMAC to update multiple CFGs */
+	u32 len;
+
+	/*
+	 * Following this there is a TLV formatted buffer of length
+	 * "uConfigBufferLen" bytes containing all config values.
+	 * The TLV is expected to be formatted like this:
+	 * 0           15            31           31+CFG_LEN-1        length-1
+	 * |   CFG_ID   |   CFG_LEN   |   CFG_BODY    |  CFG_ID  |......|
+	 */
+
+} __packed;
+
+struct wcn36xx_hal_update_cfg_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+} __packed;
+
+/* Frame control field format (2 bytes) */
+struct wcn36xx_hal_mac_frame_ctl {
+
+#ifndef ANI_LITTLE_BIT_ENDIAN
+
+	u8 subType:4;
+	u8 type:2;
+	u8 protVer:2;
+
+	u8 order:1;
+	u8 wep:1;
+	u8 moreData:1;
+	u8 powerMgmt:1;
+	u8 retry:1;
+	u8 moreFrag:1;
+	u8 fromDS:1;
+	u8 toDS:1;
+
+#else
+
+	u8 protVer:2;
+	u8 type:2;
+	u8 subType:4;
+
+	u8 toDS:1;
+	u8 fromDS:1;
+	u8 moreFrag:1;
+	u8 retry:1;
+	u8 powerMgmt:1;
+	u8 moreData:1;
+	u8 wep:1;
+	u8 order:1;
+
+#endif
+
+};
+
+/* Sequence control field */
+struct wcn36xx_hal_mac_seq_ctl {
+	u8 fragNum:4;
+	u8 seqNumLo:4;
+	u8 seqNumHi:8;
+};
+
+/* Management header format */
+struct wcn36xx_hal_mac_mgmt_hdr {
+	struct wcn36xx_hal_mac_frame_ctl fc;
+	u8 durationLo;
+	u8 durationHi;
+	u8 da[6];
+	u8 sa[6];
+	u8 bssId[6];
+	struct wcn36xx_hal_mac_seq_ctl seqControl;
+};
+
+/* FIXME: pronto v1 apparently has 4 */
+#define WCN36XX_HAL_NUM_BSSID               2
+
+/* Scan Entry to hold active BSS idx's */
+struct wcn36xx_hal_scan_entry {
+	u8 bss_index[WCN36XX_HAL_NUM_BSSID];
+	u8 active_bss_count;
+};
+
+struct wcn36xx_hal_init_scan_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* LEARN - AP Role
+	   SCAN - STA Role */
+	enum wcn36xx_hal_sys_mode mode;
+
+	/* BSSID of the BSS */
+	u8 bssid[ETH_ALEN];
+
+	/* Whether BSS needs to be notified */
+	u8 notify;
+
+	/* Kind of frame to be used for notifying the BSS (Data Null, QoS
+	 * Null, or CTS to Self). Must always be a valid frame type. */
+	u8 frame_type;
+
+	/* UMAC has the option of passing the MAC frame to be used for
+	 * notifying the BSS. If non-zero, HAL will use the MAC frame
+	 * buffer pointed to by macMgmtHdr. If zero, HAL will generate the
+	 * appropriate MAC frame based on frameType. */
+	u8 frame_len;
+
+	/* Following the framelength there is a MAC frame buffer if
+	 * frameLength is non-zero. */
+	struct wcn36xx_hal_mac_mgmt_hdr mac_mgmt_hdr;
+
+	/* Entry to hold number of active BSS idx's */
+	struct wcn36xx_hal_scan_entry scan_entry;
+};
+
+struct wcn36xx_hal_init_scan_con_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* LEARN - AP Role
+	   SCAN - STA Role */
+	enum wcn36xx_hal_sys_mode mode;
+
+	/* BSSID of the BSS */
+	u8 bssid[ETH_ALEN];
+
+	/* Whether BSS needs to be notified */
+	u8 notify;
+
+	/* Kind of frame to be used for notifying the BSS (Data Null, QoS
+	 * Null, or CTS to Self). Must always be a valid frame type. */
+	u8 frame_type;
+
+	/* UMAC has the option of passing the MAC frame to be used for
+	 * notifying the BSS. If non-zero, HAL will use the MAC frame
+	 * buffer pointed to by macMgmtHdr. If zero, HAL will generate the
+	 * appropriate MAC frame based on frameType. */
+	u8 frame_length;
+
+	/* Following the framelength there is a MAC frame buffer if
+	 * frameLength is non-zero. */
+	struct wcn36xx_hal_mac_mgmt_hdr mac_mgmt_hdr;
+
+	/* Entry to hold number of active BSS idx's */
+	struct wcn36xx_hal_scan_entry scan_entry;
+
+	/* Single NoA usage in Scanning */
+	u8 use_noa;
+
+	/* Indicates the scan duration (in ms) */
+	u16 scan_duration;
+
+};
+
+struct wcn36xx_hal_init_scan_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+} __packed;
+
+struct wcn36xx_hal_start_scan_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Indicates the channel to scan */
+	u8 scan_channel;
+} __packed;
+
+struct wcn36xx_hal_start_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	u32 start_tsf[2];
+	u8 tx_mgmt_power;
+
+} __packed;
+
+struct wcn36xx_hal_end_scan_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Indicates the channel to stop scanning. Not used really. But
+	 * retained for symmetry with "start Scan" message. It can also
+	 * help in error check if needed. */
+	u8 scan_channel;
+} __packed;
+
+struct wcn36xx_hal_end_scan_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+} __packed;
+
+struct wcn36xx_hal_finish_scan_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Identifies the operational state of the AP/STA
+	 * LEARN - AP Role SCAN - STA Role */
+	enum wcn36xx_hal_sys_mode mode;
+
+	/* Operating channel to tune to. */
+	u8 oper_channel;
+
+	/* Channel Bonding state If 20/40 MHz is operational, this will
+	 * indicate the 40 MHz extension channel in combination with the
+	 * control channel */
+	enum phy_chan_bond_state cb_state;
+
+	/* BSSID of the BSS */
+	u8 bssid[ETH_ALEN];
+
+	/* Whether BSS needs to be notified */
+	u8 notify;
+
+	/* Kind of frame to be used for notifying the BSS (Data Null, QoS
+	 * Null, or CTS to Self). Must always be a valid frame type. */
+	u8 frame_type;
+
+	/* UMAC has the option of passing the MAC frame to be used for
+	 * notifying the BSS. If non-zero, HAL will use the MAC frame
+	 * buffer pointed to by macMgmtHdr. If zero, HAL will generate the
+	 * appropriate MAC frame based on frameType. */
+	u8 frame_length;
+
+	/* Following the framelength there is a MAC frame buffer if
+	 * frameLength is non-zero. */
+	struct wcn36xx_hal_mac_mgmt_hdr mac_mgmt_hdr;
+
+	/* Entry to hold number of active BSS idx's */
+	struct wcn36xx_hal_scan_entry scan_entry;
+
+} __packed;
+
+struct wcn36xx_hal_finish_scan_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+} __packed;
+
+enum wcn36xx_hal_rate_index {
+	HW_RATE_INDEX_1MBPS	= 0x82,
+	HW_RATE_INDEX_2MBPS	= 0x84,
+	HW_RATE_INDEX_5_5MBPS	= 0x8B,
+	HW_RATE_INDEX_6MBPS	= 0x0C,
+	HW_RATE_INDEX_9MBPS	= 0x12,
+	HW_RATE_INDEX_11MBPS	= 0x96,
+	HW_RATE_INDEX_12MBPS	= 0x18,
+	HW_RATE_INDEX_18MBPS	= 0x24,
+	HW_RATE_INDEX_24MBPS	= 0x30,
+	HW_RATE_INDEX_36MBPS	= 0x48,
+	HW_RATE_INDEX_48MBPS	= 0x60,
+	HW_RATE_INDEX_54MBPS	= 0x6C
+};
+
+struct wcn36xx_hal_supported_rates {
+	/*
+	 * For Self STA Entry: this represents Self Mode.
+	 * For Peer Stations, this represents the mode of the peer.
+	 * On Station:
+	 *
+	 * --this mode is updated when PE adds the Self Entry.
+	 *
+	 * -- OR when PE sends 'ADD_BSS' message and station context in BSS
+	 *    is used to indicate the mode of the AP.
+	 *
+	 * ON AP:
+	 *
+	 * -- this mode is updated when PE sends 'ADD_BSS' and Sta entry
+	 *     for that BSS is used to indicate the self mode of the AP.
+	 *
+	 * -- OR when a station is associated, PE sends 'ADD_STA' message
+	 *    with this mode updated.
+	 */
+
+	enum sta_rate_mode op_rate_mode;
+
+	/* 11b, 11a and aniLegacyRates are IE rates which gives rate in
+	 * unit of 500Kbps */
+	u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES];
+	u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES];
+	u16 legacy_rates[WCN36XX_HAL_NUM_POLARIS_RATES];
+	u16 reserved;
+
+	/* Taurus only supports 26 Titan Rates(no ESF/concat Rates will be
+	 * supported) First 26 bits are reserved for those Titan rates and
+	 * the last 4 bits(bit28-31) for Taurus, 2(bit26-27) bits are
+	 * reserved. */
+	/* Titan and Taurus Rates */
+	u32 enhanced_rate_bitmap;
+
+	/*
+	 * 0-76 bits used, remaining reserved
+	 * bits 0-15 and 32 should be set.
+	 */
+	u8 supported_mcs_set[WCN36XX_HAL_MAC_MAX_SUPPORTED_MCS_SET];
+
+	/*
+	 * RX Highest Supported Data Rate defines the highest data
+	 * rate that the STA is able to receive, in unites of 1Mbps.
+	 * This value is derived from "Supported MCS Set field" inside
+	 * the HT capability element.
+	 */
+	u16 rx_highest_data_rate;
+
+} __packed;
+
+struct wcn36xx_hal_config_sta_params {
+	/* BSSID of STA */
+	u8 bssid[ETH_ALEN];
+
+	/* ASSOC ID, as assigned by UMAC */
+	u16 aid;
+
+	/* STA entry Type: 0 - Self, 1 - Other/Peer, 2 - BSSID, 3 - BCAST */
+	u8 type;
+
+	/* Short Preamble Supported. */
+	u8 short_preamble_supported;
+
+	/* MAC Address of STA */
+	u8 mac[ETH_ALEN];
+
+	/* Listen interval of the STA */
+	u16 listen_interval;
+
+	/* Support for 11e/WMM */
+	u8 wmm_enabled;
+
+	/* 11n HT capable STA */
+	u8 ht_capable;
+
+	/* TX Width Set: 0 - 20 MHz only, 1 - 20/40 MHz */
+	u8 tx_channel_width_set;
+
+	/* RIFS mode 0 - NA, 1 - Allowed */
+	u8 rifs_mode;
+
+	/* L-SIG TXOP Protection mechanism
+	   0 - No Support, 1 - Supported
+	   SG - there is global field */
+	u8 lsig_txop_protection;
+
+	/* Max Ampdu Size supported by STA. TPE programming.
+	   0 : 8k , 1 : 16k, 2 : 32k, 3 : 64k */
+	u8 max_ampdu_size;
+
+	/* Max Ampdu density. Used by RA.  3 : 0~7 : 2^(11nAMPDUdensity -4) */
+	u8 max_ampdu_density;
+
+	/* Max AMSDU size 1 : 3839 bytes, 0 : 7935 bytes */
+	u8 max_amsdu_size;
+
+	/* Short GI support for 40Mhz packets */
+	u8 sgi_40mhz;
+
+	/* Short GI support for 20Mhz packets */
+	u8 sgi_20Mhz;
+
+	/* TODO move this parameter to the end for 3680 */
+	/* These rates are the intersection of peer and self capabilities. */
+	struct wcn36xx_hal_supported_rates supported_rates;
+
+	/* Robust Management Frame (RMF) enabled/disabled */
+	u8 rmf;
+
+	/* The unicast encryption type in the association */
+	u32 encrypt_type;
+
+	/* HAL should update the existing STA entry, if this flag is set. UMAC
+	   will set this flag in case of RE-ASSOC, where we want to reuse the
+	   old STA ID. 0 = Add, 1 = Update */
+	u8 action;
+
+	/* U-APSD Flags: 1b per AC.  Encoded as follows:
+	   b7 b6 b5 b4 b3 b2 b1 b0 =
+	   X  X  X  X  BE BK VI VO */
+	u8 uapsd;
+
+	/* Max SP Length */
+	u8 max_sp_len;
+
+	/* 11n Green Field preamble support
+	   0 - Not supported, 1 - Supported */
+	u8 green_field_capable;
+
+	/* MIMO Power Save mode */
+	enum wcn36xx_hal_ht_mimo_state mimo_ps;
+
+	/* Delayed BA Support */
+	u8 delayed_ba_support;
+
+	/* Max AMPDU duration in 32us */
+	u8 max_ampdu_duration;
+
+	/* HT STA should set it to 1 if it is enabled in BSS. HT STA should
+	 * set it to 0 if AP does not support it. This indication is sent
+	 * to HAL and HAL uses this flag to pickup up appropriate 40Mhz
+	 * rates. */
+	u8 dsss_cck_mode_40mhz;
+
+	/* Valid STA Idx when action=Update. Set to 0xFF when invalid!
+	 * Retained for backward compalibity with existing HAL code */
+	u8 sta_index;
+
+	/* BSSID of BSS to which station is associated. Set to 0xFF when
+	 * invalid. Retained for backward compalibity with existing HAL
+	 * code */
+	u8 bssid_index;
+
+	u8 p2p;
+
+	/* TODO add this parameter for 3680. */
+	/* Reserved to align next field on a dword boundary */
+	/* u8 reserved; */
+} __packed;
+
+struct wcn36xx_hal_config_sta_req_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_config_sta_params sta_params;
+} __packed;
+
+struct wcn36xx_hal_config_sta_params_v1 {
+	/* BSSID of STA */
+	u8 bssid[ETH_ALEN];
+
+	/* ASSOC ID, as assigned by UMAC */
+	u16 aid;
+
+	/* STA entry Type: 0 - Self, 1 - Other/Peer, 2 - BSSID, 3 - BCAST */
+	u8 type;
+
+	/* Short Preamble Supported. */
+	u8 short_preamble_supported;
+
+	/* MAC Address of STA */
+	u8 mac[ETH_ALEN];
+
+	/* Listen interval of the STA */
+	u16 listen_interval;
+
+	/* Support for 11e/WMM */
+	u8 wmm_enabled;
+
+	/* 11n HT capable STA */
+	u8 ht_capable;
+
+	/* TX Width Set: 0 - 20 MHz only, 1 - 20/40 MHz */
+	u8 tx_channel_width_set;
+
+	/* RIFS mode 0 - NA, 1 - Allowed */
+	u8 rifs_mode;
+
+	/* L-SIG TXOP Protection mechanism
+	   0 - No Support, 1 - Supported
+	   SG - there is global field */
+	u8 lsig_txop_protection;
+
+	/* Max Ampdu Size supported by STA. TPE programming.
+	   0 : 8k , 1 : 16k, 2 : 32k, 3 : 64k */
+	u8 max_ampdu_size;
+
+	/* Max Ampdu density. Used by RA.  3 : 0~7 : 2^(11nAMPDUdensity -4) */
+	u8 max_ampdu_density;
+
+	/* Max AMSDU size 1 : 3839 bytes, 0 : 7935 bytes */
+	u8 max_amsdu_size;
+
+	/* Short GI support for 40Mhz packets */
+	u8 sgi_40mhz;
+
+	/* Short GI support for 20Mhz packets */
+	u8 sgi_20Mhz;
+
+	/* Robust Management Frame (RMF) enabled/disabled */
+	u8 rmf;
+
+	/* The unicast encryption type in the association */
+	u32 encrypt_type;
+
+	/* HAL should update the existing STA entry, if this flag is set. UMAC
+	   will set this flag in case of RE-ASSOC, where we want to reuse the
+	   old STA ID. 0 = Add, 1 = Update */
+	u8 action;
+
+	/* U-APSD Flags: 1b per AC.  Encoded as follows:
+	   b7 b6 b5 b4 b3 b2 b1 b0 =
+	   X  X  X  X  BE BK VI VO */
+	u8 uapsd;
+
+	/* Max SP Length */
+	u8 max_sp_len;
+
+	/* 11n Green Field preamble support
+	   0 - Not supported, 1 - Supported */
+	u8 green_field_capable;
+
+	/* MIMO Power Save mode */
+	enum wcn36xx_hal_ht_mimo_state mimo_ps;
+
+	/* Delayed BA Support */
+	u8 delayed_ba_support;
+
+	/* Max AMPDU duration in 32us */
+	u8 max_ampdu_duration;
+
+	/* HT STA should set it to 1 if it is enabled in BSS. HT STA should
+	 * set it to 0 if AP does not support it. This indication is sent
+	 * to HAL and HAL uses this flag to pickup up appropriate 40Mhz
+	 * rates. */
+	u8 dsss_cck_mode_40mhz;
+
+	/* Valid STA Idx when action=Update. Set to 0xFF when invalid!
+	 * Retained for backward compalibity with existing HAL code */
+	u8 sta_index;
+
+	/* BSSID of BSS to which station is associated. Set to 0xFF when
+	 * invalid. Retained for backward compalibity with existing HAL
+	 * code */
+	u8 bssid_index;
+
+	u8 p2p;
+
+	/* Reserved to align next field on a dword boundary */
+	u8 reserved;
+
+	/* These rates are the intersection of peer and self capabilities. */
+	struct wcn36xx_hal_supported_rates supported_rates;
+} __packed;
+
+struct wcn36xx_hal_config_sta_req_msg_v1 {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_config_sta_params_v1 sta_params;
+} __packed;
+
+struct config_sta_rsp_params {
+	/* success or failure */
+	u32 status;
+
+	/* Station index; valid only when 'status' field value SUCCESS */
+	u8 sta_index;
+
+	/* BSSID Index of BSS to which the station is associated */
+	u8 bssid_index;
+
+	/* DPU Index for PTK */
+	u8 dpu_index;
+
+	/* DPU Index for GTK */
+	u8 bcast_dpu_index;
+
+	/* DPU Index for IGTK  */
+	u8 bcast_mgmt_dpu_idx;
+
+	/* PTK DPU signature */
+	u8 uc_ucast_sig;
+
+	/* GTK DPU isignature */
+	u8 uc_bcast_sig;
+
+	/* IGTK DPU signature */
+	u8 uc_mgmt_sig;
+
+	u8 p2p;
+
+} __packed;
+
+struct wcn36xx_hal_config_sta_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	struct config_sta_rsp_params params;
+} __packed;
+
+/* Delete STA Request message */
+struct wcn36xx_hal_delete_sta_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Index of STA to delete */
+	u8 sta_index;
+
+} __packed;
+
+/* Delete STA Response message */
+struct wcn36xx_hal_delete_sta_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	/* Index of STA deleted */
+	u8 sta_id;
+} __packed;
+
+/* 12 Bytes long because this structure can be used to represent rate and
+ * extended rate set IEs. The parser assume this to be at least 12 */
+struct wcn36xx_hal_rate_set {
+	u8 num_rates;
+	u8 rate[WCN36XX_HAL_MAC_RATESET_EID_MAX];
+} __packed;
+
+/* access category record */
+struct wcn36xx_hal_aci_aifsn {
+#ifndef ANI_LITTLE_BIT_ENDIAN
+	u8 rsvd:1;
+	u8 aci:2;
+	u8 acm:1;
+	u8 aifsn:4;
+#else
+	u8 aifsn:4;
+	u8 acm:1;
+	u8 aci:2;
+	u8 rsvd:1;
+#endif
+} __packed;
+
+/* contention window size */
+struct wcn36xx_hal_mac_cw {
+#ifndef ANI_LITTLE_BIT_ENDIAN
+	u8 max:4;
+	u8 min:4;
+#else
+	u8 min:4;
+	u8 max:4;
+#endif
+} __packed;
+
+struct wcn36xx_hal_edca_param_record {
+	struct wcn36xx_hal_aci_aifsn aci;
+	struct wcn36xx_hal_mac_cw cw;
+	u16 txop_limit;
+} __packed;
+
+struct wcn36xx_hal_mac_ssid {
+	u8 length;
+	u8 ssid[32];
+} __packed;
+
+/* Concurrency role. These are generic IDs that identify the various roles
+ *  in the software system. */
+enum wcn36xx_hal_con_mode {
+	WCN36XX_HAL_STA_MODE = 0,
+
+	/* to support softAp mode . This is misleading.
+	   It means AP MODE only. */
+	WCN36XX_HAL_STA_SAP_MODE = 1,
+
+	WCN36XX_HAL_P2P_CLIENT_MODE,
+	WCN36XX_HAL_P2P_GO_MODE,
+	WCN36XX_HAL_MONITOR_MODE,
+};
+
+/* This is a bit pattern to be set for each mode
+ * bit 0 - sta mode
+ * bit 1 - ap mode
+ * bit 2 - p2p client mode
+ * bit 3 - p2p go mode */
+enum wcn36xx_hal_concurrency_mode {
+	HAL_STA = 1,
+	HAL_SAP = 2,
+
+	/* to support sta, softAp  mode . This means STA+AP mode */
+	HAL_STA_SAP = 3,
+
+	HAL_P2P_CLIENT = 4,
+	HAL_P2P_GO = 8,
+	HAL_MAX_CONCURRENCY_PERSONA = 4
+};
+
+struct wcn36xx_hal_config_bss_params {
+	/* BSSID */
+	u8 bssid[ETH_ALEN];
+
+	/* Self Mac Address */
+	u8 self_mac_addr[ETH_ALEN];
+
+	/* BSS type */
+	enum wcn36xx_hal_bss_type bss_type;
+
+	/* Operational Mode: AP =0, STA = 1 */
+	u8 oper_mode;
+
+	/* Network Type */
+	enum wcn36xx_hal_nw_type nw_type;
+
+	/* Used to classify PURE_11G/11G_MIXED to program MTU */
+	u8 short_slot_time_supported;
+
+	/* Co-exist with 11a STA */
+	u8 lla_coexist;
+
+	/* Co-exist with 11b STA */
+	u8 llb_coexist;
+
+	/* Co-exist with 11g STA */
+	u8 llg_coexist;
+
+	/* Coexistence with 11n STA */
+	u8 ht20_coexist;
+
+	/* Non GF coexist flag */
+	u8 lln_non_gf_coexist;
+
+	/* TXOP protection support */
+	u8 lsig_tx_op_protection_full_support;
+
+	/* RIFS mode */
+	u8 rifs_mode;
+
+	/* Beacon Interval in TU */
+	u16 beacon_interval;
+
+	/* DTIM period */
+	u8 dtim_period;
+
+	/* TX Width Set: 0 - 20 MHz only, 1 - 20/40 MHz */
+	u8 tx_channel_width_set;
+
+	/* Operating channel */
+	u8 oper_channel;
+
+	/* Extension channel for channel bonding */
+	u8 ext_channel;
+
+	/* Reserved to align next field on a dword boundary */
+	u8 reserved;
+
+	/* TODO move sta to the end for 3680 */
+	/* Context of the station being added in HW
+	 *  Add a STA entry for "itself" -
+	 *
+	 *  On AP  - Add the AP itself in an "STA context"
+	 *
+	 *  On STA - Add the AP to which this STA is joining in an
+	 *  "STA context"
+	 */
+	struct wcn36xx_hal_config_sta_params sta;
+	/* SSID of the BSS */
+	struct wcn36xx_hal_mac_ssid ssid;
+
+	/* HAL should update the existing BSS entry, if this flag is set.
+	 * UMAC will set this flag in case of reassoc, where we want to
+	 * resue the the old BSSID and still return success 0 = Add, 1 =
+	 * Update */
+	u8 action;
+
+	/* MAC Rate Set */
+	struct wcn36xx_hal_rate_set rateset;
+
+	/* Enable/Disable HT capabilities of the BSS */
+	u8 ht;
+
+	/* Enable/Disable OBSS protection */
+	u8 obss_prot_enabled;
+
+	/* RMF enabled/disabled */
+	u8 rmf;
+
+	/* HT Operating Mode operating mode of the 802.11n STA */
+	enum wcn36xx_hal_ht_operating_mode ht_oper_mode;
+
+	/* Dual CTS Protection: 0 - Unused, 1 - Used */
+	u8 dual_cts_protection;
+
+	/* Probe Response Max retries */
+	u8 max_probe_resp_retry_limit;
+
+	/* To Enable Hidden ssid */
+	u8 hidden_ssid;
+
+	/* To Enable Disable FW Proxy Probe Resp */
+	u8 proxy_probe_resp;
+
+	/* Boolean to indicate if EDCA params are valid. UMAC might not
+	 * have valid EDCA params or might not desire to apply EDCA params
+	 * during config BSS. 0 implies Not Valid ; Non-Zero implies
+	 * valid */
+	u8 edca_params_valid;
+
+	/* EDCA Parameters for Best Effort Access Category */
+	struct wcn36xx_hal_edca_param_record acbe;
+
+	/* EDCA Parameters forBackground Access Category */
+	struct wcn36xx_hal_edca_param_record acbk;
+
+	/* EDCA Parameters for Video Access Category */
+	struct wcn36xx_hal_edca_param_record acvi;
+
+	/* EDCA Parameters for Voice Access Category */
+	struct wcn36xx_hal_edca_param_record acvo;
+
+	/* Ext Bss Config Msg if set */
+	u8 ext_set_sta_key_param_valid;
+
+	/* SetStaKeyParams for ext bss msg */
+	struct wcn36xx_hal_set_sta_key_params ext_set_sta_key_param;
+
+	/* Persona for the BSS can be STA,AP,GO,CLIENT value same as enum
+	 * wcn36xx_hal_con_mode */
+	u8 wcn36xx_hal_persona;
+
+	u8 spectrum_mgt_enable;
+
+	/* HAL fills in the tx power used for mgmt frames in txMgmtPower */
+	s8 tx_mgmt_power;
+
+	/* maxTxPower has max power to be used after applying the power
+	 * constraint if any */
+	s8 max_tx_power;
+} __packed;
+
+struct wcn36xx_hal_config_bss_req_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_config_bss_params bss_params;
+} __packed;
+
+struct wcn36xx_hal_config_bss_params_v1 {
+	/* BSSID */
+	u8 bssid[ETH_ALEN];
+
+	/* Self Mac Address */
+	u8 self_mac_addr[ETH_ALEN];
+
+	/* BSS type */
+	enum wcn36xx_hal_bss_type bss_type;
+
+	/* Operational Mode: AP =0, STA = 1 */
+	u8 oper_mode;
+
+	/* Network Type */
+	enum wcn36xx_hal_nw_type nw_type;
+
+	/* Used to classify PURE_11G/11G_MIXED to program MTU */
+	u8 short_slot_time_supported;
+
+	/* Co-exist with 11a STA */
+	u8 lla_coexist;
+
+	/* Co-exist with 11b STA */
+	u8 llb_coexist;
+
+	/* Co-exist with 11g STA */
+	u8 llg_coexist;
+
+	/* Coexistence with 11n STA */
+	u8 ht20_coexist;
+
+	/* Non GF coexist flag */
+	u8 lln_non_gf_coexist;
+
+	/* TXOP protection support */
+	u8 lsig_tx_op_protection_full_support;
+
+	/* RIFS mode */
+	u8 rifs_mode;
+
+	/* Beacon Interval in TU */
+	u16 beacon_interval;
+
+	/* DTIM period */
+	u8 dtim_period;
+
+	/* TX Width Set: 0 - 20 MHz only, 1 - 20/40 MHz */
+	u8 tx_channel_width_set;
+
+	/* Operating channel */
+	u8 oper_channel;
+
+	/* Extension channel for channel bonding */
+	u8 ext_channel;
+
+	/* Reserved to align next field on a dword boundary */
+	u8 reserved;
+
+	/* SSID of the BSS */
+	struct wcn36xx_hal_mac_ssid ssid;
+
+	/* HAL should update the existing BSS entry, if this flag is set.
+	 * UMAC will set this flag in case of reassoc, where we want to
+	 * resue the the old BSSID and still return success 0 = Add, 1 =
+	 * Update */
+	u8 action;
+
+	/* MAC Rate Set */
+	struct wcn36xx_hal_rate_set rateset;
+
+	/* Enable/Disable HT capabilities of the BSS */
+	u8 ht;
+
+	/* Enable/Disable OBSS protection */
+	u8 obss_prot_enabled;
+
+	/* RMF enabled/disabled */
+	u8 rmf;
+
+	/* HT Operating Mode operating mode of the 802.11n STA */
+	enum wcn36xx_hal_ht_operating_mode ht_oper_mode;
+
+	/* Dual CTS Protection: 0 - Unused, 1 - Used */
+	u8 dual_cts_protection;
+
+	/* Probe Response Max retries */
+	u8 max_probe_resp_retry_limit;
+
+	/* To Enable Hidden ssid */
+	u8 hidden_ssid;
+
+	/* To Enable Disable FW Proxy Probe Resp */
+	u8 proxy_probe_resp;
+
+	/* Boolean to indicate if EDCA params are valid. UMAC might not
+	 * have valid EDCA params or might not desire to apply EDCA params
+	 * during config BSS. 0 implies Not Valid ; Non-Zero implies
+	 * valid */
+	u8 edca_params_valid;
+
+	/* EDCA Parameters for Best Effort Access Category */
+	struct wcn36xx_hal_edca_param_record acbe;
+
+	/* EDCA Parameters forBackground Access Category */
+	struct wcn36xx_hal_edca_param_record acbk;
+
+	/* EDCA Parameters for Video Access Category */
+	struct wcn36xx_hal_edca_param_record acvi;
+
+	/* EDCA Parameters for Voice Access Category */
+	struct wcn36xx_hal_edca_param_record acvo;
+
+	/* Ext Bss Config Msg if set */
+	u8 ext_set_sta_key_param_valid;
+
+	/* SetStaKeyParams for ext bss msg */
+	struct wcn36xx_hal_set_sta_key_params ext_set_sta_key_param;
+
+	/* Persona for the BSS can be STA,AP,GO,CLIENT value same as enum
+	 * wcn36xx_hal_con_mode */
+	u8 wcn36xx_hal_persona;
+
+	u8 spectrum_mgt_enable;
+
+	/* HAL fills in the tx power used for mgmt frames in txMgmtPower */
+	s8 tx_mgmt_power;
+
+	/* maxTxPower has max power to be used after applying the power
+	 * constraint if any */
+	s8 max_tx_power;
+
+	/* Context of the station being added in HW
+	 *  Add a STA entry for "itself" -
+	 *
+	 *  On AP  - Add the AP itself in an "STA context"
+	 *
+	 *  On STA - Add the AP to which this STA is joining in an
+	 *  "STA context"
+	 */
+	struct wcn36xx_hal_config_sta_params_v1 sta;
+} __packed;
+
+struct wcn36xx_hal_config_bss_req_msg_v1 {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_config_bss_params_v1 bss_params;
+} __packed;
+
+struct wcn36xx_hal_config_bss_rsp_params {
+	/* Success or Failure */
+	u32 status;
+
+	/* BSS index allocated by HAL */
+	u8 bss_index;
+
+	/* DPU descriptor index for PTK */
+	u8 dpu_desc_index;
+
+	/* PTK DPU signature */
+	u8 ucast_dpu_signature;
+
+	/* DPU descriptor index for GTK */
+	u8 bcast_dpu_desc_indx;
+
+	/* GTK DPU signature */
+	u8 bcast_dpu_signature;
+
+	/* DPU descriptor for IGTK */
+	u8 mgmt_dpu_desc_index;
+
+	/* IGTK DPU signature */
+	u8 mgmt_dpu_signature;
+
+	/* Station Index for BSS entry */
+	u8 bss_sta_index;
+
+	/* Self station index for this BSS */
+	u8 bss_self_sta_index;
+
+	/* Bcast station for buffering bcast frames in AP role */
+	u8 bss_bcast_sta_idx;
+
+	/* MAC Address of STA(PEER/SELF) in staContext of configBSSReq */
+	u8 mac[ETH_ALEN];
+
+	/* HAL fills in the tx power used for mgmt frames in this field. */
+	s8 tx_mgmt_power;
+
+} __packed;
+
+struct wcn36xx_hal_config_bss_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_config_bss_rsp_params bss_rsp_params;
+} __packed;
+
+struct wcn36xx_hal_delete_bss_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* BSS index to be deleted */
+	u8 bss_index;
+
+} __packed;
+
+struct wcn36xx_hal_delete_bss_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Success or Failure */
+	u32 status;
+
+	/* BSS index that has been deleted */
+	u8 bss_index;
+
+} __packed;
+
+struct wcn36xx_hal_join_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Indicates the BSSID to which STA is going to associate */
+	u8 bssid[ETH_ALEN];
+
+	/* Indicates the channel to switch to. */
+	u8 channel;
+
+	/* Self STA MAC */
+	u8 self_sta_mac_addr[ETH_ALEN];
+
+	/* Local power constraint */
+	u8 local_power_constraint;
+
+	/* Secondary channel offset */
+	enum phy_chan_bond_state secondary_channel_offset;
+
+	/* link State */
+	enum wcn36xx_hal_link_state link_state;
+
+	/* Max TX power */
+	s8 max_tx_power;
+} __packed;
+
+struct wcn36xx_hal_join_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	/* HAL fills in the tx power used for mgmt frames in this field */
+	u8 tx_mgmt_power;
+} __packed;
+
+struct post_assoc_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	struct wcn36xx_hal_config_sta_params sta_params;
+	struct wcn36xx_hal_config_bss_params bss_params;
+};
+
+struct post_assoc_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct config_sta_rsp_params sta_rsp_params;
+	struct wcn36xx_hal_config_bss_rsp_params bss_rsp_params;
+};
+
+/* This is used to create a set of WEP keys for a given BSS. */
+struct wcn36xx_hal_set_bss_key_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* BSS Index of the BSS */
+	u8 bss_idx;
+
+	/* Encryption Type used with peer */
+	enum ani_ed_type enc_type;
+
+	/* Number of keys */
+	u8 num_keys;
+
+	/* Array of keys. */
+	struct wcn36xx_hal_keys keys[WCN36XX_HAL_MAC_MAX_NUM_OF_DEFAULT_KEYS];
+
+	/* Control for Replay Count, 1= Single TID based replay count on Tx
+	 * 0 = Per TID based replay count on TX */
+	u8 single_tid_rc;
+} __packed;
+
+/* tagged version of set bss key */
+struct wcn36xx_hal_set_bss_key_req_msg_tagged {
+	struct wcn36xx_hal_set_bss_key_req_msg Msg;
+	u32 tag;
+} __packed;
+
+struct wcn36xx_hal_set_bss_key_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+} __packed;
+
+/*
+ * This is used  configure the key information on a given station.
+ * When the sec_type is WEP40 or WEP104, the def_wep_idx is used to locate
+ * a preconfigured key from a BSS the station assoicated with; otherwise
+ * a new key descriptor is created based on the key field.
+ */
+struct wcn36xx_hal_set_sta_key_req_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_set_sta_key_params set_sta_key_params;
+} __packed;
+
+struct wcn36xx_hal_set_sta_key_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+} __packed;
+
+struct wcn36xx_hal_remove_bss_key_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* BSS Index of the BSS */
+	u8 bss_idx;
+
+	/* Encryption Type used with peer */
+	enum ani_ed_type enc_type;
+
+	/* Key Id */
+	u8 key_id;
+
+	/* STATIC/DYNAMIC. Used in Nullifying in Key Descriptors for
+	 * Static/Dynamic keys */
+	enum ani_wep_type wep_type;
+} __packed;
+
+struct wcn36xx_hal_remove_bss_key_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+} __packed;
+
+/*
+ * This is used by PE to Remove the key information on a given station.
+ */
+struct wcn36xx_hal_remove_sta_key_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* STA Index */
+	u16 sta_idx;
+
+	/* Encryption Type used with peer */
+	enum ani_ed_type enc_type;
+
+	/* Key Id */
+	u8 key_id;
+
+	/* Whether to invalidate the Broadcast key or Unicast key. In case
+	 * of WEP, the same key is used for both broadcast and unicast. */
+	u8 unicast;
+
+} __packed;
+
+struct wcn36xx_hal_remove_sta_key_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/*success or failure */
+	u32 status;
+
+} __packed;
+
+#ifdef FEATURE_OEM_DATA_SUPPORT
+
+#ifndef OEM_DATA_REQ_SIZE
+#define OEM_DATA_REQ_SIZE 134
+#endif
+
+#ifndef OEM_DATA_RSP_SIZE
+#define OEM_DATA_RSP_SIZE 1968
+#endif
+
+struct start_oem_data_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u32 status;
+	tSirMacAddr self_mac_addr;
+	u8 oem_data_req[OEM_DATA_REQ_SIZE];
+
+};
+
+struct start_oem_data_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 oem_data_rsp[OEM_DATA_RSP_SIZE];
+};
+
+#endif
+
+struct wcn36xx_hal_switch_channel_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Channel number */
+	u8 channel_number;
+
+	/* Local power constraint */
+	u8 local_power_constraint;
+
+	/* Secondary channel offset */
+	enum phy_chan_bond_state secondary_channel_offset;
+
+	/* HAL fills in the tx power used for mgmt frames in this field. */
+	u8 tx_mgmt_power;
+
+	/* Max TX power */
+	u8 max_tx_power;
+
+	/* Self STA MAC */
+	u8 self_sta_mac_addr[ETH_ALEN];
+
+	/* VO WIFI comment: BSSID needed to identify session. As the
+	 * request has power constraints, this should be applied only to
+	 * that session Since MTU timing and EDCA are sessionized, this
+	 * struct needs to be sessionized and bssid needs to be out of the
+	 * VOWifi feature flag V IMP: Keep bssId field at the end of this
+	 * msg. It is used to mantain backward compatbility by way of
+	 * ignoring if using new host/old FW or old host/new FW since it is
+	 * at the end of this struct
+	 */
+	u8 bssid[ETH_ALEN];
+} __packed;
+
+struct wcn36xx_hal_switch_channel_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Status */
+	u32 status;
+
+	/* Channel number - same as in request */
+	u8 channel_number;
+
+	/* HAL fills in the tx power used for mgmt frames in this field */
+	u8 tx_mgmt_power;
+
+	/* BSSID needed to identify session - same as in request */
+	u8 bssid[ETH_ALEN];
+
+} __packed;
+
+struct update_edca_params_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/*BSS Index */
+	u16 bss_index;
+
+	/* Best Effort */
+	struct wcn36xx_hal_edca_param_record acbe;
+
+	/* Background */
+	struct wcn36xx_hal_edca_param_record acbk;
+
+	/* Video */
+	struct wcn36xx_hal_edca_param_record acvi;
+
+	/* Voice */
+	struct wcn36xx_hal_edca_param_record acvo;
+};
+
+struct update_edca_params_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct dpu_stats_params {
+	/* Index of STA to which the statistics */
+	u16 sta_index;
+
+	/* Encryption mode */
+	u8 enc_mode;
+
+	/* status */
+	u32 status;
+
+	/* Statistics */
+	u32 send_blocks;
+	u32 recv_blocks;
+	u32 replays;
+	u8 mic_error_cnt;
+	u32 prot_excl_cnt;
+	u16 format_err_cnt;
+	u16 un_decryptable_cnt;
+	u32 decrypt_err_cnt;
+	u32 decrypt_ok_cnt;
+};
+
+struct wcn36xx_hal_stats_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Valid STA Idx for per STA stats request */
+	u32 sta_id;
+
+	/* Categories of stats requested as specified in eHalStatsMask */
+	u32 stats_mask;
+};
+
+struct ani_summary_stats_info {
+	/* Total number of packets(per AC) that were successfully
+	 * transmitted with retries */
+	u32 retry_cnt[4];
+
+	/* The number of MSDU packets and MMPDU frames per AC that the
+	 * 802.11 station successfully transmitted after more than one
+	 * retransmission attempt */
+	u32 multiple_retry_cnt[4];
+
+	/* Total number of packets(per AC) that were successfully
+	 * transmitted (with and without retries, including multi-cast,
+	 * broadcast) */
+	u32 tx_frm_cnt[4];
+
+	/* Total number of packets that were successfully received (after
+	 * appropriate filter rules including multi-cast, broadcast) */
+	u32 rx_frm_cnt;
+
+	/* Total number of duplicate frames received successfully */
+	u32 frm_dup_cnt;
+
+	/* Total number packets(per AC) failed to transmit */
+	u32 fail_cnt[4];
+
+	/* Total number of RTS/CTS sequence failures for transmission of a
+	 * packet */
+	u32 rts_fail_cnt;
+
+	/* Total number packets failed transmit because of no ACK from the
+	 * remote entity */
+	u32 ack_fail_cnt;
+
+	/* Total number of RTS/CTS sequence success for transmission of a
+	 * packet */
+	u32 rts_succ_cnt;
+
+	/* The sum of the receive error count and dropped-receive-buffer
+	 * error count. HAL will provide this as a sum of (FCS error) +
+	 * (Fail get BD/PDU in HW) */
+	u32 rx_discard_cnt;
+
+	/*
+	 * The receive error count. HAL will provide the RxP FCS error
+	 * global counter. */
+	u32 rx_error_cnt;
+
+	/* The sum of the transmit-directed byte count, transmit-multicast
+	 * byte count and transmit-broadcast byte count. HAL will sum TPE
+	 * UC/MC/BCAST global counters to provide this. */
+	u32 tx_byte_cnt;
+};
+
+/* defines tx_rate_flags */
+enum tx_rate_info {
+	/* Legacy rates */
+	HAL_TX_RATE_LEGACY = 0x1,
+
+	/* HT20 rates */
+	HAL_TX_RATE_HT20 = 0x2,
+
+	/* HT40 rates */
+	HAL_TX_RATE_HT40 = 0x4,
+
+	/* Rate with Short guard interval */
+	HAL_TX_RATE_SGI = 0x8,
+
+	/* Rate with Long guard interval */
+	HAL_TX_RATE_LGI = 0x10
+};
+
+struct ani_global_class_a_stats_info {
+	/* The number of MPDU frames received by the 802.11 station for
+	 * MSDU packets or MMPDU frames */
+	u32 rx_frag_cnt;
+
+	/* The number of MPDU frames received by the 802.11 station for
+	 * MSDU packets or MMPDU frames when a promiscuous packet filter
+	 * was enabled */
+	u32 promiscuous_rx_frag_cnt;
+
+	/* The receiver input sensitivity referenced to a FER of 8% at an
+	 * MPDU length of 1024 bytes at the antenna connector. Each element
+	 * of the array shall correspond to a supported rate and the order
+	 * shall be the same as the supporteRates parameter. */
+	u32 rx_input_sensitivity;
+
+	/* The maximum transmit power in dBm upto one decimal. for eg: if
+	 * it is 10.5dBm, the value would be 105 */
+	u32 max_pwr;
+
+	/* Number of times the receiver failed to synchronize with the
+	 * incoming signal after detecting the sync in the preamble of the
+	 * transmitted PLCP protocol data unit. */
+	u32 sync_fail_cnt;
+
+	/* Legacy transmit rate, in units of 500 kbit/sec, for the most
+	 * recently transmitted frame */
+	u32 tx_rate;
+
+	/* mcs index for HT20 and HT40 rates */
+	u32 mcs_index;
+
+	/* to differentiate between HT20 and HT40 rates; short and long
+	 * guard interval */
+	u32 tx_rate_flags;
+};
+
+struct ani_global_security_stats {
+	/* The number of unencrypted received MPDU frames that the MAC
+	 * layer discarded when the IEEE 802.11 dot11ExcludeUnencrypted
+	 * management information base (MIB) object is enabled */
+	u32 rx_wep_unencrypted_frm_cnt;
+
+	/* The number of received MSDU packets that that the 802.11 station
+	 * discarded because of MIC failures */
+	u32 rx_mic_fail_cnt;
+
+	/* The number of encrypted MPDU frames that the 802.11 station
+	 * failed to decrypt because of a TKIP ICV error */
+	u32 tkip_icv_err;
+
+	/* The number of received MPDU frames that the 802.11 discarded
+	 * because of an invalid AES-CCMP format */
+	u32 aes_ccmp_format_err;
+
+	/* The number of received MPDU frames that the 802.11 station
+	 * discarded because of the AES-CCMP replay protection procedure */
+	u32 aes_ccmp_replay_cnt;
+
+	/* The number of received MPDU frames that the 802.11 station
+	 * discarded because of errors detected by the AES-CCMP decryption
+	 * algorithm */
+	u32 aes_ccmp_decrpt_err;
+
+	/* The number of encrypted MPDU frames received for which a WEP
+	 * decryption key was not available on the 802.11 station */
+	u32 wep_undecryptable_cnt;
+
+	/* The number of encrypted MPDU frames that the 802.11 station
+	 * failed to decrypt because of a WEP ICV error */
+	u32 wep_icv_err;
+
+	/* The number of received encrypted packets that the 802.11 station
+	 * successfully decrypted */
+	u32 rx_decrypt_succ_cnt;
+
+	/* The number of encrypted packets that the 802.11 station failed
+	 * to decrypt */
+	u32 rx_decrypt_fail_cnt;
+};
+
+struct ani_global_class_b_stats_info {
+	struct ani_global_security_stats uc_stats;
+	struct ani_global_security_stats mc_bc_stats;
+};
+
+struct ani_global_class_c_stats_info {
+	/* This counter shall be incremented for a received A-MSDU frame
+	 * with the stations MAC address in the address 1 field or an
+	 * A-MSDU frame with a group address in the address 1 field */
+	u32 rx_amsdu_cnt;
+
+	/* This counter shall be incremented when the MAC receives an AMPDU
+	 * from the PHY */
+	u32 rx_ampdu_cnt;
+
+	/* This counter shall be incremented when a Frame is transmitted
+	 * only on the primary channel */
+	u32 tx_20_frm_cnt;
+
+	/* This counter shall be incremented when a Frame is received only
+	 * on the primary channel */
+	u32 rx_20_frm_cnt;
+
+	/* This counter shall be incremented by the number of MPDUs
+	 * received in the A-MPDU when an A-MPDU is received */
+	u32 rx_mpdu_in_ampdu_cnt;
+
+	/* This counter shall be incremented when an MPDU delimiter has a
+	 * CRC error when this is the first CRC error in the received AMPDU
+	 * or when the previous delimiter has been decoded correctly */
+	u32 ampdu_delimiter_crc_err;
+};
+
+struct ani_per_sta_stats_info {
+	/* The number of MPDU frames that the 802.11 station transmitted
+	 * and acknowledged through a received 802.11 ACK frame */
+	u32 tx_frag_cnt[4];
+
+	/* This counter shall be incremented when an A-MPDU is transmitted */
+	u32 tx_ampdu_cnt;
+
+	/* This counter shall increment by the number of MPDUs in the AMPDU
+	 * when an A-MPDU is transmitted */
+	u32 tx_mpdu_in_ampdu_cnt;
+};
+
+struct wcn36xx_hal_stats_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Success or Failure */
+	u32 status;
+
+	/* STA Idx */
+	u32 sta_index;
+
+	/* Categories of STATS being returned as per eHalStatsMask */
+	u32 stats_mask;
+
+	/* message type is same as the request type */
+	u16 msg_type;
+
+	/* length of the entire request, includes the pStatsBuf length too */
+	u16 msg_len;
+};
+
+struct wcn36xx_hal_set_link_state_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 bssid[ETH_ALEN];
+	enum wcn36xx_hal_link_state state;
+	u8 self_mac_addr[ETH_ALEN];
+
+} __packed;
+
+struct set_link_state_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+/* TSPEC Params */
+struct wcn36xx_hal_ts_info_tfc {
+#ifndef ANI_LITTLE_BIT_ENDIAN
+	u16 ackPolicy:2;
+	u16 userPrio:3;
+	u16 psb:1;
+	u16 aggregation:1;
+	u16 accessPolicy:2;
+	u16 direction:2;
+	u16 tsid:4;
+	u16 trafficType:1;
+#else
+	u16 trafficType:1;
+	u16 tsid:4;
+	u16 direction:2;
+	u16 accessPolicy:2;
+	u16 aggregation:1;
+	u16 psb:1;
+	u16 userPrio:3;
+	u16 ackPolicy:2;
+#endif
+};
+
+/* Flag to schedule the traffic type */
+struct wcn36xx_hal_ts_info_sch {
+#ifndef ANI_LITTLE_BIT_ENDIAN
+	u8 rsvd:7;
+	u8 schedule:1;
+#else
+	u8 schedule:1;
+	u8 rsvd:7;
+#endif
+};
+
+/* Traffic and scheduling info */
+struct wcn36xx_hal_ts_info {
+	struct wcn36xx_hal_ts_info_tfc traffic;
+	struct wcn36xx_hal_ts_info_sch schedule;
+};
+
+/* Information elements */
+struct wcn36xx_hal_tspec_ie {
+	u8 type;
+	u8 length;
+	struct wcn36xx_hal_ts_info ts_info;
+	u16 nom_msdu_size;
+	u16 max_msdu_size;
+	u32 min_svc_interval;
+	u32 max_svc_interval;
+	u32 inact_interval;
+	u32 suspend_interval;
+	u32 svc_start_time;
+	u32 min_data_rate;
+	u32 mean_data_rate;
+	u32 peak_data_rate;
+	u32 max_burst_sz;
+	u32 delay_bound;
+	u32 min_phy_rate;
+	u16 surplus_bw;
+	u16 medium_time;
+};
+
+struct add_ts_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Station Index */
+	u16 sta_index;
+
+	/* TSPEC handler uniquely identifying a TSPEC for a STA in a BSS */
+	u16 tspec_index;
+
+	/* To program TPE with required parameters */
+	struct wcn36xx_hal_tspec_ie tspec;
+
+	/* U-APSD Flags: 1b per AC.  Encoded as follows:
+	   b7 b6 b5 b4 b3 b2 b1 b0 =
+	   X  X  X  X  BE BK VI VO */
+	u8 uapsd;
+
+	/* These parameters are for all the access categories */
+
+	/* Service Interval */
+	u32 service_interval[WCN36XX_HAL_MAX_AC];
+
+	/* Suspend Interval */
+	u32 suspend_interval[WCN36XX_HAL_MAX_AC];
+
+	/* Delay Interval */
+	u32 delay_interval[WCN36XX_HAL_MAX_AC];
+};
+
+struct add_rs_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct del_ts_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Station Index */
+	u16 sta_index;
+
+	/* TSPEC identifier uniquely identifying a TSPEC for a STA in a BSS */
+	u16 tspec_index;
+
+	/* To lookup station id using the mac address */
+	u8 bssid[ETH_ALEN];
+};
+
+struct del_ts_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+/* End of TSpec Parameters */
+
+/* Start of BLOCK ACK related Parameters */
+
+struct wcn36xx_hal_add_ba_session_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Station Index */
+	u16 sta_index;
+
+	/* Peer MAC Address */
+	u8 mac_addr[ETH_ALEN];
+
+	/* ADDBA Action Frame dialog token
+	   HAL will not interpret this object */
+	u8 dialog_token;
+
+	/* TID for which the BA is being setup
+	   This identifies the TC or TS of interest */
+	u8 tid;
+
+	/* 0 - Delayed BA (Not supported)
+	   1 - Immediate BA */
+	u8 policy;
+
+	/* Indicates the number of buffers for this TID (baTID)
+	   NOTE - This is the requested buffer size. When this
+	   is processed by HAL and subsequently by HDD, it is
+	   possible that HDD may change this buffer size. Any
+	   change in the buffer size should be noted by PE and
+	   advertized appropriately in the ADDBA response */
+	u16 buffer_size;
+
+	/* BA timeout in TU's 0 means no timeout will occur */
+	u16 timeout;
+
+	/* b0..b3 - Fragment Number - Always set to 0
+	   b4..b15 - Starting Sequence Number of first MSDU
+	   for which this BA is setup */
+	u16 ssn;
+
+	/* ADDBA direction
+	   1 - Originator
+	   0 - Recipient */
+	u8 direction;
+} __packed;
+
+struct wcn36xx_hal_add_ba_session_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	/* Dialog token */
+	u8 dialog_token;
+
+	/* TID for which the BA session has been setup */
+	u8 ba_tid;
+
+	/* BA Buffer Size allocated for the current BA session */
+	u8 ba_buffer_size;
+
+	u8 ba_session_id;
+
+	/* Reordering Window buffer */
+	u8 win_size;
+
+	/* Station Index to id the sta */
+	u8 sta_index;
+
+	/* Starting Sequence Number */
+	u16 ssn;
+} __packed;
+
+struct wcn36xx_hal_add_ba_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Session Id */
+	u8 session_id;
+
+	/* Reorder Window Size */
+	u8 win_size;
+/* Old FW 1.2.2.4 does not support this*/
+#ifdef FEATURE_ON_CHIP_REORDERING
+	u8 reordering_done_on_chip;
+#endif
+} __packed;
+
+struct wcn36xx_hal_add_ba_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	/* Dialog token */
+	u8 dialog_token;
+} __packed;
+
+struct add_ba_info {
+	u16 ba_enable:1;
+	u16 starting_seq_num:12;
+	u16 reserved:3;
+};
+
+struct wcn36xx_hal_trigger_ba_rsp_candidate {
+	u8 sta_addr[ETH_ALEN];
+	struct add_ba_info ba_info[STACFG_MAX_TC];
+} __packed;
+
+struct wcn36xx_hal_trigget_ba_req_candidate {
+	u8 sta_index;
+	u8 tid_bitmap;
+} __packed;
+
+struct wcn36xx_hal_trigger_ba_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Session Id */
+	u8 session_id;
+
+	/* baCandidateCnt is followed by trigger BA
+	 * Candidate List(tTriggerBaCandidate)
+	 */
+	u16 candidate_cnt;
+
+} __packed;
+
+struct wcn36xx_hal_trigger_ba_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* TO SUPPORT BT-AMP */
+	u8 bssid[ETH_ALEN];
+
+	/* success or failure */
+	u32 status;
+
+	/* baCandidateCnt is followed by trigger BA
+	 * Rsp Candidate List(tTriggerRspBaCandidate)
+	 */
+	u16 candidate_cnt;
+} __packed;
+
+struct wcn36xx_hal_del_ba_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Station Index */
+	u16 sta_index;
+
+	/* TID for which the BA session is being deleted */
+	u8 tid;
+
+	/* DELBA direction
+	   1 - Originator
+	   0 - Recipient */
+	u8 direction;
+} __packed;
+
+struct wcn36xx_hal_del_ba_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+} __packed;
+
+struct tsm_stats_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Traffic Id */
+	u8 tid;
+
+	u8 bssid[ETH_ALEN];
+};
+
+struct tsm_stats_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/*success or failure */
+	u32 status;
+
+	/* Uplink Packet Queue delay */
+	u16 uplink_pkt_queue_delay;
+
+	/* Uplink Packet Queue delay histogram */
+	u16 uplink_pkt_queue_delay_hist[4];
+
+	/* Uplink Packet Transmit delay */
+	u32 uplink_pkt_tx_delay;
+
+	/* Uplink Packet loss */
+	u16 uplink_pkt_loss;
+
+	/* Uplink Packet count */
+	u16 uplink_pkt_count;
+
+	/* Roaming count */
+	u8 roaming_count;
+
+	/* Roaming Delay */
+	u16 roaming_delay;
+};
+
+struct set_key_done_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/*bssid of the keys */
+	u8 bssidx;
+	u8 enc_type;
+};
+
+struct wcn36xx_hal_nv_img_download_req_msg {
+	/* Note: The length specified in wcn36xx_hal_nv_img_download_req_msg
+	 * messages should be
+	 * header.len = sizeof(wcn36xx_hal_nv_img_download_req_msg) +
+	 * nv_img_buffer_size */
+	struct wcn36xx_hal_msg_header header;
+
+	/* Fragment sequence number of the NV Image. Note that NV Image
+	 * might not fit into one message due to size limitation of the SMD
+	 * channel FIFO. UMAC can hence choose to chop the NV blob into
+	 * multiple fragments starting with seqeunce number 0, 1, 2 etc.
+	 * The last fragment MUST be indicated by marking the
+	 * isLastFragment field to 1. Note that all the NV blobs would be
+	 * concatenated together by HAL without any padding bytes in
+	 * between.*/
+	u16 frag_number;
+
+	/* Is this the last fragment? When set to 1 it indicates that no
+	 * more fragments will be sent by UMAC and HAL can concatenate all
+	 * the NV blobs rcvd & proceed with the parsing. HAL would generate
+	 * a WCN36XX_HAL_DOWNLOAD_NV_RSP to the WCN36XX_HAL_DOWNLOAD_NV_REQ
+	 * after it receives each fragment */
+	u16 last_fragment;
+
+	/* NV Image size (number of bytes) */
+	u32 nv_img_buffer_size;
+
+	/* Following the 'nv_img_buffer_size', there should be
+	 * nv_img_buffer_size bytes of NV Image i.e.
+	 * u8[nv_img_buffer_size] */
+} __packed;
+
+struct wcn36xx_hal_nv_img_download_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Success or Failure. HAL would generate a
+	 * WCN36XX_HAL_DOWNLOAD_NV_RSP after each fragment */
+	u32 status;
+} __packed;
+
+struct wcn36xx_hal_nv_store_ind {
+	/* Note: The length specified in tHalNvStoreInd messages should be
+	 * header.msgLen = sizeof(tHalNvStoreInd) + nvBlobSize */
+	struct wcn36xx_hal_msg_header header;
+
+	/* NV Item */
+	u32 table_id;
+
+	/* Size of NV Blob */
+	u32 nv_blob_size;
+
+	/* Following the 'nvBlobSize', there should be nvBlobSize bytes of
+	 * NV blob i.e. u8[nvBlobSize] */
+};
+
+/* End of Block Ack Related Parameters */
+
+#define WCN36XX_HAL_CIPHER_SEQ_CTR_SIZE 6
+
+/* Definition for MIC failure indication MAC reports this each time a MIC
+ * failure occures on Rx TKIP packet
+ */
+struct mic_failure_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 bssid[ETH_ALEN];
+
+	/* address used to compute MIC */
+	u8 src_addr[ETH_ALEN];
+
+	/* transmitter address */
+	u8 ta_addr[ETH_ALEN];
+
+	u8 dst_addr[ETH_ALEN];
+
+	u8 multicast;
+
+	/* first byte of IV */
+	u8 iv1;
+
+	/* second byte of IV */
+	u8 key_id;
+
+	/* sequence number */
+	u8 tsc[WCN36XX_HAL_CIPHER_SEQ_CTR_SIZE];
+
+	/* receive address */
+	u8 rx_addr[ETH_ALEN];
+};
+
+struct update_vht_op_mode_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u16 op_mode;
+	u16 sta_id;
+};
+
+struct update_vht_op_mode_params_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u32 status;
+};
+
+struct update_beacon_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 bss_index;
+
+	/* shortPreamble mode. HAL should update all the STA rates when it
+	 * receives this message */
+	u8 short_preamble;
+
+	/* short Slot time. */
+	u8 short_slot_time;
+
+	/* Beacon Interval */
+	u16 beacon_interval;
+
+	/* Protection related */
+	u8 lla_coexist;
+	u8 llb_coexist;
+	u8 llg_coexist;
+	u8 ht20_coexist;
+	u8 lln_non_gf_coexist;
+	u8 lsig_tx_op_protection_full_support;
+	u8 rifs_mode;
+
+	u16 param_change_bitmap;
+};
+
+struct update_beacon_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+	u32 status;
+};
+
+struct wcn36xx_hal_send_beacon_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* length of the template. */
+	u32 beacon_length;
+
+	/* Beacon data. */
+	u8 beacon[BEACON_TEMPLATE_SIZE];
+
+	u8 bssid[ETH_ALEN];
+
+	/* TIM IE offset from the beginning of the template. */
+	u32 tim_ie_offset;
+
+	/* P2P IE offset from the begining of the template */
+	u16 p2p_ie_offset;
+} __packed;
+
+struct send_beacon_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+	u32 status;
+} __packed;
+
+struct enable_radar_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 bssid[ETH_ALEN];
+	u8 channel;
+};
+
+struct enable_radar_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Link Parameters */
+	u8 bssid[ETH_ALEN];
+
+	/* success or failure */
+	u32 status;
+};
+
+struct radar_detect_intr_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 radar_det_channel;
+};
+
+struct radar_detect_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* channel number in which the RADAR detected */
+	u8 channel_number;
+
+	/* RADAR pulse width in usecond */
+	u16 radar_pulse_width;
+
+	/* Number of RADAR pulses */
+	u16 num_radar_pulse;
+};
+
+struct wcn36xx_hal_get_tpc_report_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 sta[ETH_ALEN];
+	u8 dialog_token;
+	u8 txpower;
+};
+
+struct wcn36xx_hal_get_tpc_report_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_send_probe_resp_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 probe_resp_template[BEACON_TEMPLATE_SIZE];
+	u32 probe_resp_template_len;
+	u32 proxy_probe_req_valid_ie_bmap[8];
+	u8 bssid[ETH_ALEN];
+};
+
+struct send_probe_resp_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct send_unknown_frame_rx_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_delete_sta_context_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u16 aid;
+	u16 sta_id;
+
+	/* TO SUPPORT BT-AMP */
+	u8 bssid[ETH_ALEN];
+
+	/* HAL copies bssid from the sta table. */
+	u8 addr2[ETH_ALEN];
+
+	/* To unify the keepalive / unknown A2 / tim-based disa */
+	u16 reason_code;
+} __packed;
+
+struct indicate_del_sta {
+	struct wcn36xx_hal_msg_header header;
+	u8 aid;
+	u8 sta_index;
+	u8 bss_index;
+	u8 reason_code;
+	u32 status;
+};
+
+struct bt_amp_event_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	enum bt_amp_event_type btAmpEventType;
+};
+
+struct bt_amp_event_rsp {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct tl_hal_flush_ac_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Station Index. originates from HAL */
+	u8 sta_id;
+
+	/* TID for which the transmit queue is being flushed */
+	u8 tid;
+};
+
+struct tl_hal_flush_ac_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Station Index. originates from HAL */
+	u8 sta_id;
+
+	/* TID for which the transmit queue is being flushed */
+	u8 tid;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_enter_imps_req_msg {
+	struct wcn36xx_hal_msg_header header;
+};
+
+struct wcn36xx_hal_exit_imps_req {
+	struct wcn36xx_hal_msg_header header;
+};
+
+struct wcn36xx_hal_enter_bmps_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 bss_index;
+
+	/* TBTT value derived from the last beacon */
+#ifndef BUILD_QWPTTSTATIC
+	u64 tbtt;
+#endif
+	u8 dtim_count;
+
+	/* DTIM period given to HAL during association may not be valid, if
+	 * association is based on ProbeRsp instead of beacon. */
+	u8 dtim_period;
+
+	/* For CCX and 11R Roaming */
+	u32 rssi_filter_period;
+
+	u32 num_beacon_per_rssi_average;
+	u8 rssi_filter_enable;
+} __packed;
+
+struct wcn36xx_hal_exit_bmps_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 send_data_null;
+	u8 bss_index;
+} __packed;
+
+struct wcn36xx_hal_missed_beacon_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 bss_index;
+} __packed;
+
+/* Beacon Filtering data structures */
+
+/* The above structure would be followed by multiple of below mentioned
+ * structure
+ */
+struct beacon_filter_ie {
+	u8 element_id;
+	u8 check_ie_presence;
+	u8 offset;
+	u8 value;
+	u8 bitmask;
+	u8 ref;
+};
+
+struct wcn36xx_hal_add_bcn_filter_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u16 capability_info;
+	u16 capability_mask;
+	u16 beacon_interval;
+	u16 ie_num;
+	u8 bss_index;
+	u8 reserved;
+};
+
+struct wcn36xx_hal_rem_bcn_filter_req {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 ie_Count;
+	u8 rem_ie_id[1];
+};
+
+#define WCN36XX_HAL_IPV4_ARP_REPLY_OFFLOAD                  0
+#define WCN36XX_HAL_IPV6_NEIGHBOR_DISCOVERY_OFFLOAD         1
+#define WCN36XX_HAL_IPV6_NS_OFFLOAD                         2
+#define WCN36XX_HAL_IPV6_ADDR_LEN                           16
+#define WCN36XX_HAL_OFFLOAD_DISABLE                         0
+#define WCN36XX_HAL_OFFLOAD_ENABLE                          1
+#define WCN36XX_HAL_OFFLOAD_BCAST_FILTER_ENABLE             0x2
+#define WCN36XX_HAL_OFFLOAD_ARP_AND_BCAST_FILTER_ENABLE	\
+	(HAL_OFFLOAD_ENABLE|HAL_OFFLOAD_BCAST_FILTER_ENABLE)
+
+struct wcn36xx_hal_ns_offload_params {
+	u8 src_ipv6_addr[WCN36XX_HAL_IPV6_ADDR_LEN];
+	u8 self_ipv6_addr[WCN36XX_HAL_IPV6_ADDR_LEN];
+
+	/* Only support 2 possible Network Advertisement IPv6 address */
+	u8 target_ipv6_addr1[WCN36XX_HAL_IPV6_ADDR_LEN];
+	u8 target_ipv6_addr2[WCN36XX_HAL_IPV6_ADDR_LEN];
+
+	u8 self_addr[ETH_ALEN];
+	u8 src_ipv6_addr_valid:1;
+	u8 target_ipv6_addr1_valid:1;
+	u8 target_ipv6_addr2_valid:1;
+	u8 reserved1:5;
+
+	/* make it DWORD aligned */
+	u8 reserved2;
+
+	/* slot index for this offload */
+	u32 slot_index;
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_host_offload_req {
+	u8 offload_Type;
+
+	/* enable or disable */
+	u8 enable;
+
+	union {
+		u8 host_ipv4_addr[4];
+		u8 host_ipv6_addr[WCN36XX_HAL_IPV6_ADDR_LEN];
+	} u;
+};
+
+struct wcn36xx_hal_host_offload_req_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_host_offload_req host_offload_params;
+	struct wcn36xx_hal_ns_offload_params ns_offload_params;
+};
+
+/* Packet Types. */
+#define WCN36XX_HAL_KEEP_ALIVE_NULL_PKT              1
+#define WCN36XX_HAL_KEEP_ALIVE_UNSOLICIT_ARP_RSP     2
+
+/* Enable or disable keep alive */
+#define WCN36XX_HAL_KEEP_ALIVE_DISABLE   0
+#define WCN36XX_HAL_KEEP_ALIVE_ENABLE    1
+#define WCN36XX_KEEP_ALIVE_TIME_PERIOD	 30 /* unit: s */
+
+/* Keep Alive request. */
+struct wcn36xx_hal_keep_alive_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 packet_type;
+	u32 time_period;
+	u8 host_ipv4_addr[WCN36XX_HAL_IPV4_ADDR_LEN];
+	u8 dest_ipv4_addr[WCN36XX_HAL_IPV4_ADDR_LEN];
+	u8 dest_addr[ETH_ALEN];
+	u8 bss_index;
+} __packed;
+
+struct wcn36xx_hal_rssi_threshold_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	s8 threshold1:8;
+	s8 threshold2:8;
+	s8 threshold3:8;
+	u8 thres1_pos_notify:1;
+	u8 thres1_neg_notify:1;
+	u8 thres2_pos_notify:1;
+	u8 thres2_neg_notify:1;
+	u8 thres3_pos_notify:1;
+	u8 thres3_neg_notify:1;
+	u8 reserved10:2;
+};
+
+struct wcn36xx_hal_enter_uapsd_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 bk_delivery:1;
+	u8 be_delivery:1;
+	u8 vi_delivery:1;
+	u8 vo_delivery:1;
+	u8 bk_trigger:1;
+	u8 be_trigger:1;
+	u8 vi_trigger:1;
+	u8 vo_trigger:1;
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_exit_uapsd_req_msg {
+	struct wcn36xx_hal_msg_header header;
+	u8 bss_index;
+};
+
+#define WCN36XX_HAL_WOWL_BCAST_PATTERN_MAX_SIZE 128
+#define WCN36XX_HAL_WOWL_BCAST_MAX_NUM_PATTERNS 16
+
+struct wcn36xx_hal_wowl_add_bcast_ptrn_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Pattern ID */
+	u8 id;
+
+	/* Pattern byte offset from beginning of the 802.11 packet to start
+	 * of the wake-up pattern */
+	u8 byte_Offset;
+
+	/* Non-Zero Pattern size */
+	u8 size;
+
+	/* Pattern */
+	u8 pattern[WCN36XX_HAL_WOWL_BCAST_PATTERN_MAX_SIZE];
+
+	/* Non-zero pattern mask size */
+	u8 mask_size;
+
+	/* Pattern mask */
+	u8 mask[WCN36XX_HAL_WOWL_BCAST_PATTERN_MAX_SIZE];
+
+	/* Extra pattern */
+	u8 extra[WCN36XX_HAL_WOWL_BCAST_PATTERN_MAX_SIZE];
+
+	/* Extra pattern mask */
+	u8 mask_extra[WCN36XX_HAL_WOWL_BCAST_PATTERN_MAX_SIZE];
+
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_wow_del_bcast_ptrn_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Pattern ID of the wakeup pattern to be deleted */
+	u8 id;
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_wowl_enter_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Enables/disables magic packet filtering */
+	u8 magic_packet_enable;
+
+	/* Magic pattern */
+	u8 magic_pattern[ETH_ALEN];
+
+	/* Enables/disables packet pattern filtering in firmware. Enabling
+	 * this flag enables broadcast pattern matching in Firmware. If
+	 * unicast pattern matching is also desired,
+	 * ucUcastPatternFilteringEnable flag must be set tot true as well
+	 */
+	u8 pattern_filtering_enable;
+
+	/* Enables/disables unicast packet pattern filtering. This flag
+	 * specifies whether we want to do pattern match on unicast packets
+	 * as well and not just broadcast packets. This flag has no effect
+	 * if the ucPatternFilteringEnable (main controlling flag) is set
+	 * to false
+	 */
+	u8 ucast_pattern_filtering_enable;
+
+	/* This configuration is valid only when magicPktEnable=1. It
+	 * requests hardware to wake up when it receives the Channel Switch
+	 * Action Frame.
+	 */
+	u8 wow_channel_switch_receive;
+
+	/* This configuration is valid only when magicPktEnable=1. It
+	 * requests hardware to wake up when it receives the
+	 * Deauthentication Frame.
+	 */
+	u8 wow_deauth_receive;
+
+	/* This configuration is valid only when magicPktEnable=1. It
+	 * requests hardware to wake up when it receives the Disassociation
+	 * Frame.
+	 */
+	u8 wow_disassoc_receive;
+
+	/* This configuration is valid only when magicPktEnable=1. It
+	 * requests hardware to wake up when it has missed consecutive
+	 * beacons. This is a hardware register configuration (NOT a
+	 * firmware configuration).
+	 */
+	u8 wow_max_missed_beacons;
+
+	/* This configuration is valid only when magicPktEnable=1. This is
+	 * a timeout value in units of microsec. It requests hardware to
+	 * unconditionally wake up after it has stayed in WoWLAN mode for
+	 * some time. Set 0 to disable this feature.
+	 */
+	u8 wow_max_sleep;
+
+	/* This configuration directs the WoW packet filtering to look for
+	 * EAP-ID requests embedded in EAPOL frames and use this as a wake
+	 * source.
+	 */
+	u8 wow_eap_id_request_enable;
+
+	/* This configuration directs the WoW packet filtering to look for
+	 * EAPOL-4WAY requests and use this as a wake source.
+	 */
+	u8 wow_eapol_4way_enable;
+
+	/* This configuration allows a host wakeup on an network scan
+	 * offload match.
+	 */
+	u8 wow_net_scan_offload_match;
+
+	/* This configuration allows a host wakeup on any GTK rekeying
+	 * error.
+	 */
+	u8 wow_gtk_rekey_error;
+
+	/* This configuration allows a host wakeup on BSS connection loss.
+	 */
+	u8 wow_bss_connection_loss;
+
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_wowl_exit_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_get_rssi_req_msg {
+	struct wcn36xx_hal_msg_header header;
+};
+
+struct wcn36xx_hal_get_roam_rssi_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Valid STA Idx for per STA stats request */
+	u32 sta_id;
+};
+
+struct wcn36xx_hal_set_uapsd_ac_params_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* STA index */
+	u8 sta_idx;
+
+	/* Access Category */
+	u8 ac;
+
+	/* User Priority */
+	u8 up;
+
+	/* Service Interval */
+	u32 service_interval;
+
+	/* Suspend Interval */
+	u32 suspend_interval;
+
+	/* Delay Interval */
+	u32 delay_interval;
+};
+
+struct wcn36xx_hal_configure_rxp_filter_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 set_mcst_bcst_filter_setting;
+	u8 set_mcst_bcst_filter;
+};
+
+struct wcn36xx_hal_enter_imps_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_exit_imps_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_enter_bmps_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	u8 bss_index;
+} __packed;
+
+struct wcn36xx_hal_exit_bmps_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	u8 bss_index;
+} __packed;
+
+struct wcn36xx_hal_enter_uapsd_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_exit_uapsd_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_rssi_notification_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u32 rssi_thres1_pos_cross:1;
+	u32 rssi_thres1_neg_cross:1;
+	u32 rssi_thres2_pos_cross:1;
+	u32 rssi_thres2_neg_cross:1;
+	u32 rssi_thres3_pos_cross:1;
+	u32 rssi_thres3_neg_cross:1;
+	u32 avg_rssi:8;
+	u32 reserved:18;
+
+};
+
+struct wcn36xx_hal_get_rssio_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+	s8 rssi;
+
+};
+
+struct wcn36xx_hal_get_roam_rssi_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	u8 sta_id;
+	s8 rssi;
+};
+
+struct wcn36xx_hal_wowl_enter_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_wowl_exit_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_add_bcn_filter_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_rem_bcn_filter_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_add_wowl_bcast_ptrn_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_del_wowl_bcast_ptrn_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_host_offload_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_keep_alive_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_set_rssi_thresh_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_set_uapsd_ac_params_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_configure_rxp_filter_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct set_max_tx_pwr_req {
+	struct wcn36xx_hal_msg_header header;
+
+	/* BSSID is needed to identify which session issued this request.
+	 * As the request has power constraints, this should be applied
+	 * only to that session */
+	u8 bssid[ETH_ALEN];
+
+	u8 self_addr[ETH_ALEN];
+
+	/* In request, power == MaxTx power to be used. */
+	u8 power;
+};
+
+struct set_max_tx_pwr_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* power == tx power used for management frames */
+	u8 power;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct set_tx_pwr_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* TX Power in milli watts */
+	u32 tx_power;
+
+	u8 bss_index;
+};
+
+struct set_tx_pwr_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct get_tx_pwr_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 sta_id;
+};
+
+struct get_tx_pwr_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	/* TX Power in milli watts */
+	u32 tx_power;
+};
+
+struct set_p2p_gonoa_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 opp_ps;
+	u32 ct_window;
+	u8 count;
+	u32 duration;
+	u32 interval;
+	u32 single_noa_duration;
+	u8 ps_selection;
+};
+
+struct set_p2p_gonoa_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_add_sta_self_req {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 self_addr[ETH_ALEN];
+	u32 status;
+} __packed;
+
+struct wcn36xx_hal_add_sta_self_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	/* Self STA Index */
+	u8 self_sta_index;
+
+	/* DPU Index (IGTK, PTK, GTK all same) */
+	u8 dpu_index;
+
+	/* DPU Signature */
+	u8 dpu_signature;
+} __packed;
+
+struct wcn36xx_hal_del_sta_self_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 self_addr[ETH_ALEN];
+} __packed;
+
+struct wcn36xx_hal_del_sta_self_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/*success or failure */
+	u32 status;
+
+	u8 self_addr[ETH_ALEN];
+} __packed;
+
+struct aggr_add_ts_req {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Station Index */
+	u16 sta_idx;
+
+	/* TSPEC handler uniquely identifying a TSPEC for a STA in a BSS.
+	 * This will carry the bitmap with the bit positions representing
+	 * different AC.s */
+	u16 tspec_index;
+
+	/* Tspec info per AC To program TPE with required parameters */
+	struct wcn36xx_hal_tspec_ie tspec[WCN36XX_HAL_MAX_AC];
+
+	/* U-APSD Flags: 1b per AC.  Encoded as follows:
+	   b7 b6 b5 b4 b3 b2 b1 b0 =
+	   X  X  X  X  BE BK VI VO */
+	u8 uapsd;
+
+	/* These parameters are for all the access categories */
+
+	/* Service Interval */
+	u32 service_interval[WCN36XX_HAL_MAX_AC];
+
+	/* Suspend Interval */
+	u32 suspend_interval[WCN36XX_HAL_MAX_AC];
+
+	/* Delay Interval */
+	u32 delay_interval[WCN36XX_HAL_MAX_AC];
+};
+
+struct aggr_add_ts_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status0;
+
+	/* FIXME PRIMA for future use for 11R */
+	u32 status1;
+};
+
+struct wcn36xx_hal_configure_apps_cpu_wakeup_state_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 is_apps_cpu_awake;
+};
+
+struct wcn36xx_hal_configure_apps_cpu_wakeup_state_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_dump_cmd_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u32 arg1;
+	u32 arg2;
+	u32 arg3;
+	u32 arg4;
+	u32 arg5;
+} __packed;
+
+struct wcn36xx_hal_dump_cmd_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	/* Length of the responce message */
+	u32 rsp_length;
+
+	/* FIXME: Currently considering the the responce will be less than
+	 * 100bytes */
+	u8 rsp_buffer[DUMPCMD_RSP_BUFFER];
+} __packed;
+
+#define WLAN_COEX_IND_DATA_SIZE (4)
+#define WLAN_COEX_IND_TYPE_DISABLE_HB_MONITOR (0)
+#define WLAN_COEX_IND_TYPE_ENABLE_HB_MONITOR (1)
+
+struct coex_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Coex Indication Type */
+	u32 type;
+
+	/* Coex Indication Data */
+	u32 data[WLAN_COEX_IND_DATA_SIZE];
+};
+
+struct wcn36xx_hal_tx_compl_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Tx Complete Indication Success or Failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_wlan_host_suspend_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u32 configured_mcst_bcst_filter_setting;
+	u32 active_session_count;
+};
+
+struct wcn36xx_hal_wlan_exclude_unencrpted_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 dot11_exclude_unencrypted;
+	u8 bssid[ETH_ALEN];
+};
+
+struct noa_attr_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 index;
+	u8 opp_ps_flag;
+	u16 ctwin;
+
+	u16 noa1_interval_count;
+	u16 bss_index;
+	u32 noa1_duration;
+	u32 noa1_interval;
+	u32 noa1_starttime;
+
+	u16 noa2_interval_count;
+	u16 reserved2;
+	u32 noa2_duration;
+	u32 noa2_interval;
+	u32 noa2_start_time;
+
+	u32 status;
+};
+
+struct noa_start_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u32 status;
+	u32 bss_index;
+};
+
+struct wcn36xx_hal_wlan_host_resume_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 configured_mcst_bcst_filter_setting;
+};
+
+struct wcn36xx_hal_host_resume_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+struct wcn36xx_hal_del_ba_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u16 sta_idx;
+
+	/* Peer MAC Address, whose BA session has timed out */
+	u8 peer_addr[ETH_ALEN];
+
+	/* TID for which a BA session timeout is being triggered */
+	u8 ba_tid;
+
+	/* DELBA direction
+	 * 1 - Originator
+	 * 0 - Recipient
+	 */
+	u8 direction;
+
+	u32 reason_code;
+
+	/* TO SUPPORT BT-AMP */
+	u8 bssid[ETH_ALEN];
+};
+
+/* PNO Messages */
+
+/* Max number of channels that a network can be found on */
+#define WCN36XX_HAL_PNO_MAX_NETW_CHANNELS  26
+
+/* Max number of channels that a network can be found on */
+#define WCN36XX_HAL_PNO_MAX_NETW_CHANNELS_EX  60
+
+/* Maximum numbers of networks supported by PNO */
+#define WCN36XX_HAL_PNO_MAX_SUPP_NETWORKS  16
+
+/* The number of scan time intervals that can be programmed into PNO */
+#define WCN36XX_HAL_PNO_MAX_SCAN_TIMERS    10
+
+/* Maximum size of the probe template */
+#define WCN36XX_HAL_PNO_MAX_PROBE_SIZE     450
+
+/* Type of PNO enabling:
+ *
+ * Immediate - scanning will start immediately and PNO procedure will be
+ * repeated based on timer
+ *
+ * Suspend - scanning will start at suspend
+ *
+ * Resume - scanning will start on system resume
+ */
+enum pno_mode {
+	PNO_MODE_IMMEDIATE,
+	PNO_MODE_ON_SUSPEND,
+	PNO_MODE_ON_RESUME,
+	PNO_MODE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+/* Authentication type */
+enum auth_type {
+	AUTH_TYPE_ANY = 0,
+	AUTH_TYPE_OPEN_SYSTEM = 1,
+
+	/* Upper layer authentication types */
+	AUTH_TYPE_WPA = 2,
+	AUTH_TYPE_WPA_PSK = 3,
+
+	AUTH_TYPE_RSN = 4,
+	AUTH_TYPE_RSN_PSK = 5,
+	AUTH_TYPE_FT_RSN = 6,
+	AUTH_TYPE_FT_RSN_PSK = 7,
+	AUTH_TYPE_WAPI_WAI_CERTIFICATE = 8,
+	AUTH_TYPE_WAPI_WAI_PSK = 9,
+
+	AUTH_TYPE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+/* Encryption type */
+enum ed_type {
+	ED_ANY = 0,
+	ED_NONE = 1,
+	ED_WEP = 2,
+	ED_TKIP = 3,
+	ED_CCMP = 4,
+	ED_WPI = 5,
+
+	ED_TYPE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+/* SSID broadcast  type */
+enum ssid_bcast_type {
+	BCAST_UNKNOWN = 0,
+	BCAST_NORMAL = 1,
+	BCAST_HIDDEN = 2,
+
+	BCAST_TYPE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE
+};
+
+/* The network description for which PNO will have to look for */
+struct network_type {
+	/* SSID of the BSS */
+	struct wcn36xx_hal_mac_ssid ssid;
+
+	/* Authentication type for the network */
+	enum auth_type authentication;
+
+	/* Encryption type for the network */
+	enum ed_type encryption;
+
+	/* Indicate the channel on which the Network can be found 0 - if
+	 * all channels */
+	u8 channel_count;
+	u8 channels[WCN36XX_HAL_PNO_MAX_NETW_CHANNELS];
+
+	/* Indicates the RSSI threshold for the network to be considered */
+	u8 rssi_threshold;
+};
+
+struct scan_timer {
+	/* How much it should wait */
+	u32 value;
+
+	/* How many times it should repeat that wait value 0 - keep using
+	 * this timer until PNO is disabled */
+	u32 repeat;
+
+	/* e.g: 2 3 4 0 - it will wait 2s between consecutive scans for 3
+	 * times - after that it will wait 4s between consecutive scans
+	 * until disabled */
+};
+
+/* The network parameters to be sent to the PNO algorithm */
+struct scan_timers_type {
+	/* set to 0 if you wish for PNO to use its default telescopic timer */
+	u8 count;
+
+	/* A set value represents the amount of time that PNO will wait
+	 * between two consecutive scan procedures If the desired is for a
+	 * uniform timer that fires always at the exact same interval - one
+	 * single value is to be set If there is a desire for a more
+	 * complex - telescopic like timer multiple values can be set -
+	 * once PNO reaches the end of the array it will continue scanning
+	 * at intervals presented by the last value */
+	struct scan_timer values[WCN36XX_HAL_PNO_MAX_SCAN_TIMERS];
+};
+
+/* Preferred network list request */
+struct set_pref_netw_list_req {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Enable PNO */
+	u32 enable;
+
+	/* Immediate,  On Suspend,   On Resume */
+	enum pno_mode mode;
+
+	/* Number of networks sent for PNO */
+	u32 networks_count;
+
+	/* The networks that PNO needs to look for */
+	struct network_type networks[WCN36XX_HAL_PNO_MAX_SUPP_NETWORKS];
+
+	/* The scan timers required for PNO */
+	struct scan_timers_type scan_timers;
+
+	/* Probe template for 2.4GHz band */
+	u16 band_24g_probe_size;
+	u8 band_24g_probe_template[WCN36XX_HAL_PNO_MAX_PROBE_SIZE];
+
+	/* Probe template for 5GHz band */
+	u16 band_5g_probe_size;
+	u8 band_5g_probe_template[WCN36XX_HAL_PNO_MAX_PROBE_SIZE];
+};
+
+/* The network description for which PNO will have to look for */
+struct network_type_new {
+	/* SSID of the BSS */
+	struct wcn36xx_hal_mac_ssid ssid;
+
+	/* Authentication type for the network */
+	enum auth_type authentication;
+
+	/* Encryption type for the network */
+	enum ed_type encryption;
+
+	/* SSID broadcast type, normal, hidden or unknown */
+	enum ssid_bcast_type bcast_network_type;
+
+	/* Indicate the channel on which the Network can be found 0 - if
+	 * all channels */
+	u8 channel_count;
+	u8 channels[WCN36XX_HAL_PNO_MAX_NETW_CHANNELS];
+
+	/* Indicates the RSSI threshold for the network to be considered */
+	u8 rssi_threshold;
+};
+
+/* Preferred network list request new */
+struct set_pref_netw_list_req_new {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Enable PNO */
+	u32 enable;
+
+	/* Immediate,  On Suspend,   On Resume */
+	enum pno_mode mode;
+
+	/* Number of networks sent for PNO */
+	u32 networks_count;
+
+	/* The networks that PNO needs to look for */
+	struct network_type_new networks[WCN36XX_HAL_PNO_MAX_SUPP_NETWORKS];
+
+	/* The scan timers required for PNO */
+	struct scan_timers_type scan_timers;
+
+	/* Probe template for 2.4GHz band */
+	u16 band_24g_probe_size;
+	u8 band_24g_probe_template[WCN36XX_HAL_PNO_MAX_PROBE_SIZE];
+
+	/* Probe template for 5GHz band */
+	u16 band_5g_probe_size;
+	u8 band_5g_probe_template[WCN36XX_HAL_PNO_MAX_PROBE_SIZE];
+};
+
+/* Preferred network list response */
+struct set_pref_netw_list_resp {
+	struct wcn36xx_hal_msg_header header;
+
+	/* status of the request - just to indicate that PNO has
+	 * acknowledged the request and will start scanning */
+	u32 status;
+};
+
+/* Preferred network found indication */
+struct pref_netw_found_ind {
+
+	struct wcn36xx_hal_msg_header header;
+
+	/* Network that was found with the highest RSSI */
+	struct wcn36xx_hal_mac_ssid ssid;
+
+	/* Indicates the RSSI */
+	u8 rssi;
+};
+
+/* RSSI Filter request */
+struct set_rssi_filter_req {
+	struct wcn36xx_hal_msg_header header;
+
+	/* RSSI Threshold */
+	u8 rssi_threshold;
+};
+
+/* Set RSSI filter resp */
+struct set_rssi_filter_resp {
+	struct wcn36xx_hal_msg_header header;
+
+	/* status of the request */
+	u32 status;
+};
+
+/* Update scan params - sent from host to PNO to be used during PNO
+ * scanningx */
+struct wcn36xx_hal_update_scan_params_req {
+
+	struct wcn36xx_hal_msg_header header;
+
+	/* Host setting for 11d */
+	u8 dot11d_enabled;
+
+	/* Lets PNO know that host has determined the regulatory domain */
+	u8 dot11d_resolved;
+
+	/* Channels on which PNO is allowed to scan */
+	u8 channel_count;
+	u8 channels[WCN36XX_HAL_PNO_MAX_NETW_CHANNELS];
+
+	/* Minimum channel time */
+	u16 active_min_ch_time;
+
+	/* Maximum channel time */
+	u16 active_max_ch_time;
+
+	/* Minimum channel time */
+	u16 passive_min_ch_time;
+
+	/* Maximum channel time */
+	u16 passive_max_ch_time;
+
+	/* Cb State */
+	enum phy_chan_bond_state state;
+} __packed;
+
+/* Update scan params - sent from host to PNO to be used during PNO
+ * scanningx */
+struct update_scan_params_req_ex {
+
+	struct wcn36xx_hal_msg_header header;
+
+	/* Host setting for 11d */
+	u8 dot11d_enabled;
+
+	/* Lets PNO know that host has determined the regulatory domain */
+	u8 dot11d_resolved;
+
+	/* Channels on which PNO is allowed to scan */
+	u8 channel_count;
+	u8 channels[WCN36XX_HAL_PNO_MAX_NETW_CHANNELS_EX];
+
+	/* Minimum channel time */
+	u16 active_min_ch_time;
+
+	/* Maximum channel time */
+	u16 active_max_ch_time;
+
+	/* Minimum channel time */
+	u16 passive_min_ch_time;
+
+	/* Maximum channel time */
+	u16 passive_max_ch_time;
+
+	/* Cb State */
+	enum phy_chan_bond_state state;
+};
+
+/* Update scan params - sent from host to PNO to be used during PNO
+ * scanningx */
+struct wcn36xx_hal_update_scan_params_resp {
+
+	struct wcn36xx_hal_msg_header header;
+
+	/* status of the request */
+	u32 status;
+} __packed;
+
+struct wcn36xx_hal_set_tx_per_tracking_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* 0: disable, 1:enable */
+	u8 tx_per_tracking_enable;
+
+	/* Check period, unit is sec. */
+	u8 tx_per_tracking_period;
+
+	/* (Fail TX packet)/(Total TX packet) ratio, the unit is 10%. */
+	u8 tx_per_tracking_ratio;
+
+	/* A watermark of check number, once the tx packet exceed this
+	 * number, we do the check, default is 5 */
+	u32 tx_per_tracking_watermark;
+};
+
+struct wcn36xx_hal_set_tx_per_tracking_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+};
+
+struct tx_per_hit_ind_msg {
+	struct wcn36xx_hal_msg_header header;
+};
+
+/* Packet Filtering Definitions Begin */
+#define    WCN36XX_HAL_PROTOCOL_DATA_LEN                  8
+#define    WCN36XX_HAL_MAX_NUM_MULTICAST_ADDRESS        240
+#define    WCN36XX_HAL_MAX_NUM_FILTERS                   20
+#define    WCN36XX_HAL_MAX_CMP_PER_FILTER                10
+
+enum wcn36xx_hal_receive_packet_filter_type {
+	HAL_RCV_FILTER_TYPE_INVALID,
+	HAL_RCV_FILTER_TYPE_FILTER_PKT,
+	HAL_RCV_FILTER_TYPE_BUFFER_PKT,
+	HAL_RCV_FILTER_TYPE_MAX_ENUM_SIZE
+};
+
+enum wcn36xx_hal_rcv_pkt_flt_protocol_type {
+	HAL_FILTER_PROTO_TYPE_INVALID,
+	HAL_FILTER_PROTO_TYPE_MAC,
+	HAL_FILTER_PROTO_TYPE_ARP,
+	HAL_FILTER_PROTO_TYPE_IPV4,
+	HAL_FILTER_PROTO_TYPE_IPV6,
+	HAL_FILTER_PROTO_TYPE_UDP,
+	HAL_FILTER_PROTO_TYPE_MAX
+};
+
+enum wcn36xx_hal_rcv_pkt_flt_cmp_flag_type {
+	HAL_FILTER_CMP_TYPE_INVALID,
+	HAL_FILTER_CMP_TYPE_EQUAL,
+	HAL_FILTER_CMP_TYPE_MASK_EQUAL,
+	HAL_FILTER_CMP_TYPE_NOT_EQUAL,
+	HAL_FILTER_CMP_TYPE_MAX
+};
+
+struct wcn36xx_hal_rcv_pkt_filter_params {
+	u8 protocol_layer;
+	u8 cmp_flag;
+
+	/* Length of the data to compare */
+	u16 data_length;
+
+	/* from start of the respective frame header */
+	u8 data_offset;
+
+	/* Reserved field */
+	u8 reserved;
+
+	/* Data to compare */
+	u8 compare_data[WCN36XX_HAL_PROTOCOL_DATA_LEN];
+
+	/* Mask to be applied on the received packet data before compare */
+	u8 data_mask[WCN36XX_HAL_PROTOCOL_DATA_LEN];
+};
+
+struct wcn36xx_hal_sessionized_rcv_pkt_filter_cfg_type {
+	u8 id;
+	u8 type;
+	u8 params_count;
+	u32 coleasce_time;
+	u8 bss_index;
+	struct wcn36xx_hal_rcv_pkt_filter_params params[1];
+};
+
+struct wcn36xx_hal_set_rcv_pkt_filter_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 id;
+	u8 type;
+	u8 params_count;
+	u32 coalesce_time;
+	struct wcn36xx_hal_rcv_pkt_filter_params params[1];
+};
+
+struct wcn36xx_hal_rcv_flt_mc_addr_list_type {
+	/* from start of the respective frame header */
+	u8 data_offset;
+
+	u32 mc_addr_count;
+	u8 mc_addr[ETH_ALEN][WCN36XX_HAL_MAX_NUM_MULTICAST_ADDRESS];
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_set_pkt_filter_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_rcv_flt_pkt_match_cnt_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_rcv_flt_pkt_match_cnt {
+	u8 id;
+	u32 match_cnt;
+};
+
+struct wcn36xx_hal_rcv_flt_pkt_match_cnt_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Success or Failure */
+	u32 status;
+
+	u32 match_count;
+	struct wcn36xx_hal_rcv_flt_pkt_match_cnt
+		matches[WCN36XX_HAL_MAX_NUM_FILTERS];
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_rcv_flt_pkt_clear_param {
+	/* only valid for response message */
+	u32 status;
+	u8 id;
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_rcv_flt_pkt_clear_req_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_rcv_flt_pkt_clear_param param;
+};
+
+struct wcn36xx_hal_rcv_flt_pkt_clear_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_rcv_flt_pkt_clear_param param;
+};
+
+struct wcn36xx_hal_rcv_flt_pkt_set_mc_list_req_msg {
+	struct wcn36xx_hal_msg_header header;
+	struct wcn36xx_hal_rcv_flt_mc_addr_list_type mc_addr_list;
+};
+
+struct wcn36xx_hal_rcv_flt_pkt_set_mc_list_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+	u32 status;
+	u8 bss_index;
+};
+
+/* Packet Filtering Definitions End */
+
+struct wcn36xx_hal_set_power_params_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/*  Ignore DTIM */
+	u32 ignore_dtim;
+
+	/* DTIM Period */
+	u32 dtim_period;
+
+	/* Listen Interval */
+	u32 listen_interval;
+
+	/* Broadcast Multicast Filter  */
+	u32 bcast_mcast_filter;
+
+	/* Beacon Early Termination */
+	u32 enable_bet;
+
+	/* Beacon Early Termination Interval */
+	u32 bet_interval;
+} __packed;
+
+struct wcn36xx_hal_set_power_params_resp {
+
+	struct wcn36xx_hal_msg_header header;
+
+	/* status of the request */
+	u32 status;
+} __packed;
+
+/* Capability bitmap exchange definitions and macros starts */
+
+enum place_holder_in_cap_bitmap {
+	MCC = 0,
+	P2P = 1,
+	DOT11AC = 2,
+	SLM_SESSIONIZATION = 3,
+	DOT11AC_OPMODE = 4,
+	SAP32STA = 5,
+	TDLS = 6,
+	P2P_GO_NOA_DECOUPLE_INIT_SCAN = 7,
+	WLANACTIVE_OFFLOAD = 8,
+	BEACON_OFFLOAD = 9,
+	SCAN_OFFLOAD = 10,
+	ROAM_OFFLOAD = 11,
+	BCN_MISS_OFFLOAD = 12,
+	STA_POWERSAVE = 13,
+	STA_ADVANCED_PWRSAVE = 14,
+	AP_UAPSD = 15,
+	AP_DFS = 16,
+	BLOCKACK = 17,
+	PHY_ERR = 18,
+	BCN_FILTER = 19,
+	RTT = 20,
+	RATECTRL = 21,
+	WOW = 22,
+	MAX_FEATURE_SUPPORTED = 128,
+};
+
+struct wcn36xx_hal_feat_caps_msg {
+
+	struct wcn36xx_hal_msg_header header;
+
+	u32 feat_caps[4];
+} __packed;
+
+/* status codes to help debug rekey failures */
+enum gtk_rekey_status {
+	WCN36XX_HAL_GTK_REKEY_STATUS_SUCCESS = 0,
+
+	/* rekey detected, but not handled */
+	WCN36XX_HAL_GTK_REKEY_STATUS_NOT_HANDLED = 1,
+
+	/* MIC check error on M1 */
+	WCN36XX_HAL_GTK_REKEY_STATUS_MIC_ERROR = 2,
+
+	/* decryption error on M1  */
+	WCN36XX_HAL_GTK_REKEY_STATUS_DECRYPT_ERROR = 3,
+
+	/* M1 replay detected */
+	WCN36XX_HAL_GTK_REKEY_STATUS_REPLAY_ERROR = 4,
+
+	/* missing GTK key descriptor in M1 */
+	WCN36XX_HAL_GTK_REKEY_STATUS_MISSING_KDE = 5,
+
+	/* missing iGTK key descriptor in M1 */
+	WCN36XX_HAL_GTK_REKEY_STATUS_MISSING_IGTK_KDE = 6,
+
+	/* key installation error */
+	WCN36XX_HAL_GTK_REKEY_STATUS_INSTALL_ERROR = 7,
+
+	/* iGTK key installation error */
+	WCN36XX_HAL_GTK_REKEY_STATUS_IGTK_INSTALL_ERROR = 8,
+
+	/* GTK rekey M2 response TX error */
+	WCN36XX_HAL_GTK_REKEY_STATUS_RESP_TX_ERROR = 9,
+
+	/* non-specific general error */
+	WCN36XX_HAL_GTK_REKEY_STATUS_GEN_ERROR = 255
+};
+
+/* wake reason types */
+enum wake_reason_type {
+	WCN36XX_HAL_WAKE_REASON_NONE = 0,
+
+	/* magic packet match */
+	WCN36XX_HAL_WAKE_REASON_MAGIC_PACKET = 1,
+
+	/* host defined pattern match */
+	WCN36XX_HAL_WAKE_REASON_PATTERN_MATCH = 2,
+
+	/* EAP-ID frame detected */
+	WCN36XX_HAL_WAKE_REASON_EAPID_PACKET = 3,
+
+	/* start of EAPOL 4-way handshake detected */
+	WCN36XX_HAL_WAKE_REASON_EAPOL4WAY_PACKET = 4,
+
+	/* network scan offload match */
+	WCN36XX_HAL_WAKE_REASON_NETSCAN_OFFL_MATCH = 5,
+
+	/* GTK rekey status wakeup (see status) */
+	WCN36XX_HAL_WAKE_REASON_GTK_REKEY_STATUS = 6,
+
+	/* BSS connection lost */
+	WCN36XX_HAL_WAKE_REASON_BSS_CONN_LOST = 7,
+};
+
+/*
+  Wake Packet which is saved at tWakeReasonParams.DataStart
+  This data is sent for any wake reasons that involve a packet-based wakeup :
+
+  WCN36XX_HAL_WAKE_REASON_TYPE_MAGIC_PACKET
+  WCN36XX_HAL_WAKE_REASON_TYPE_PATTERN_MATCH
+  WCN36XX_HAL_WAKE_REASON_TYPE_EAPID_PACKET
+  WCN36XX_HAL_WAKE_REASON_TYPE_EAPOL4WAY_PACKET
+  WCN36XX_HAL_WAKE_REASON_TYPE_GTK_REKEY_STATUS
+
+  The information is provided to the host for auditing and debug purposes
+
+*/
+
+/* Wake reason indication */
+struct wcn36xx_hal_wake_reason_ind {
+	struct wcn36xx_hal_msg_header header;
+
+	/* see tWakeReasonType */
+	u32 reason;
+
+	/* argument specific to the reason type */
+	u32 reason_arg;
+
+	/* length of optional data stored in this message, in case HAL
+	 * truncates the data (i.e. data packets) this length will be less
+	 * than the actual length */
+	u32 stored_data_len;
+
+	/* actual length of data */
+	u32 actual_data_len;
+
+	/* variable length start of data (length == storedDataLen) see
+	 * specific wake type */
+	u8 data_start[1];
+
+	u32 bss_index:8;
+	u32 reserved:24;
+};
+
+#define WCN36XX_HAL_GTK_KEK_BYTES 16
+#define WCN36XX_HAL_GTK_KCK_BYTES 16
+
+#define WCN36XX_HAL_GTK_OFFLOAD_FLAGS_DISABLE (1 << 0)
+
+#define GTK_SET_BSS_KEY_TAG  0x1234AA55
+
+struct wcn36xx_hal_gtk_offload_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* optional flags */
+	u32 flags;
+
+	/* Key confirmation key */
+	u8 kck[WCN36XX_HAL_GTK_KCK_BYTES];
+
+	/* key encryption key */
+	u8 kek[WCN36XX_HAL_GTK_KEK_BYTES];
+
+	/* replay counter */
+	u64 key_replay_counter;
+
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_gtk_offload_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_gtk_offload_get_info_req_msg {
+	struct wcn36xx_hal_msg_header header;
+	u8 bss_index;
+};
+
+struct wcn36xx_hal_gtk_offload_get_info_rsp_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+
+	/* last rekey status when the rekey was offloaded */
+	u32 last_rekey_status;
+
+	/* current replay counter value */
+	u64 key_replay_counter;
+
+	/* total rekey attempts */
+	u32 total_rekey_count;
+
+	/* successful GTK rekeys */
+	u32 gtk_rekey_count;
+
+	/* successful iGTK rekeys */
+	u32 igtk_rekey_count;
+
+	u8 bss_index;
+};
+
+struct dhcp_info {
+	/* Indicates the device mode which indicates about the DHCP activity */
+	u8 device_mode;
+
+	u8 addr[ETH_ALEN];
+};
+
+struct dhcp_ind_status {
+	struct wcn36xx_hal_msg_header header;
+
+	/* success or failure */
+	u32 status;
+};
+
+/*
+ *   Thermal Mitigation mode of operation.
+ *
+ *  WCN36XX_HAL_THERMAL_MITIGATION_MODE_0 - Based on AMPDU disabling aggregation
+ *
+ *  WCN36XX_HAL_THERMAL_MITIGATION_MODE_1 - Based on AMPDU disabling aggregation
+ *  and reducing transmit power
+ *
+ *  WCN36XX_HAL_THERMAL_MITIGATION_MODE_2 - Not supported */
+enum wcn36xx_hal_thermal_mitigation_mode_type {
+	HAL_THERMAL_MITIGATION_MODE_INVALID = -1,
+	HAL_THERMAL_MITIGATION_MODE_0,
+	HAL_THERMAL_MITIGATION_MODE_1,
+	HAL_THERMAL_MITIGATION_MODE_2,
+	HAL_THERMAL_MITIGATION_MODE_MAX = WCN36XX_HAL_MAX_ENUM_SIZE,
+};
+
+
+/*
+ *   Thermal Mitigation level.
+ * Note the levels are incremental i.e WCN36XX_HAL_THERMAL_MITIGATION_LEVEL_2 =
+ * WCN36XX_HAL_THERMAL_MITIGATION_LEVEL_0 +
+ * WCN36XX_HAL_THERMAL_MITIGATION_LEVEL_1
+ *
+ * WCN36XX_HAL_THERMAL_MITIGATION_LEVEL_0 - lowest level of thermal mitigation.
+ * This level indicates normal mode of operation
+ *
+ * WCN36XX_HAL_THERMAL_MITIGATION_LEVEL_1 - 1st level of thermal mitigation
+ *
+ * WCN36XX_HAL_THERMAL_MITIGATION_LEVEL_2 - 2nd level of thermal mitigation
+ *
+ * WCN36XX_HAL_THERMAL_MITIGATION_LEVEL_3 - 3rd level of thermal mitigation
+ *
+ * WCN36XX_HAL_THERMAL_MITIGATION_LEVEL_4 - 4th level of thermal mitigation
+ */
+enum wcn36xx_hal_thermal_mitigation_level_type {
+	HAL_THERMAL_MITIGATION_LEVEL_INVALID = -1,
+	HAL_THERMAL_MITIGATION_LEVEL_0,
+	HAL_THERMAL_MITIGATION_LEVEL_1,
+	HAL_THERMAL_MITIGATION_LEVEL_2,
+	HAL_THERMAL_MITIGATION_LEVEL_3,
+	HAL_THERMAL_MITIGATION_LEVEL_4,
+	HAL_THERMAL_MITIGATION_LEVEL_MAX = WCN36XX_HAL_MAX_ENUM_SIZE,
+};
+
+
+/* WCN36XX_HAL_SET_THERMAL_MITIGATION_REQ */
+struct set_thermal_mitigation_req_msg {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Thermal Mitigation Operation Mode */
+	enum wcn36xx_hal_thermal_mitigation_mode_type mode;
+
+	/* Thermal Mitigation Level */
+	enum wcn36xx_hal_thermal_mitigation_level_type level;
+};
+
+struct set_thermal_mitigation_resp {
+
+	struct wcn36xx_hal_msg_header header;
+
+	/* status of the request */
+	u32 status;
+};
+
+/* Per STA Class B Statistics. Class B statistics are STA TX/RX stats
+ * provided to FW from Host via periodic messages */
+struct stats_class_b_ind {
+	struct wcn36xx_hal_msg_header header;
+
+	/* Duration over which this stats was collected */
+	u32 duration;
+
+	/* Per STA Stats */
+
+	/* TX stats */
+	u32 tx_bytes_pushed;
+	u32 tx_packets_pushed;
+
+	/* RX stats */
+	u32 rx_bytes_rcvd;
+	u32 rx_packets_rcvd;
+	u32 rx_time_total;
+};
+
+#endif /* _HAL_H_ */
diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c
new file mode 100644
index 000000000000..7839b31e4826
--- /dev/null
+++ b/drivers/net/wireless/ath/wcn36xx/main.c
@@ -0,0 +1,1036 @@
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include "wcn36xx.h"
+
+unsigned int wcn36xx_dbg_mask;
+module_param_named(debug_mask, wcn36xx_dbg_mask, uint, 0644);
+MODULE_PARM_DESC(debug_mask, "Debugging mask");
+
+#define CHAN2G(_freq, _idx) { \
+	.band = IEEE80211_BAND_2GHZ, \
+	.center_freq = (_freq), \
+	.hw_value = (_idx), \
+	.max_power = 25, \
+}
+
+#define CHAN5G(_freq, _idx) { \
+	.band = IEEE80211_BAND_5GHZ, \
+	.center_freq = (_freq), \
+	.hw_value = (_idx), \
+	.max_power = 25, \
+}
+
+/* The wcn firmware expects channel values to matching
+ * their mnemonic values. So use these for .hw_value. */
+static struct ieee80211_channel wcn_2ghz_channels[] = {
+	CHAN2G(2412, 1), /* Channel 1 */
+	CHAN2G(2417, 2), /* Channel 2 */
+	CHAN2G(2422, 3), /* Channel 3 */
+	CHAN2G(2427, 4), /* Channel 4 */
+	CHAN2G(2432, 5), /* Channel 5 */
+	CHAN2G(2437, 6), /* Channel 6 */
+	CHAN2G(2442, 7), /* Channel 7 */
+	CHAN2G(2447, 8), /* Channel 8 */
+	CHAN2G(2452, 9), /* Channel 9 */
+	CHAN2G(2457, 10), /* Channel 10 */
+	CHAN2G(2462, 11), /* Channel 11 */
+	CHAN2G(2467, 12), /* Channel 12 */
+	CHAN2G(2472, 13), /* Channel 13 */
+	CHAN2G(2484, 14)  /* Channel 14 */
+
+};
+
+static struct ieee80211_channel wcn_5ghz_channels[] = {
+	CHAN5G(5180, 36),
+	CHAN5G(5200, 40),
+	CHAN5G(5220, 44),
+	CHAN5G(5240, 48),
+	CHAN5G(5260, 52),
+	CHAN5G(5280, 56),
+	CHAN5G(5300, 60),
+	CHAN5G(5320, 64),
+	CHAN5G(5500, 100),
+	CHAN5G(5520, 104),
+	CHAN5G(5540, 108),
+	CHAN5G(5560, 112),
+	CHAN5G(5580, 116),
+	CHAN5G(5600, 120),
+	CHAN5G(5620, 124),
+	CHAN5G(5640, 128),
+	CHAN5G(5660, 132),
+	CHAN5G(5700, 140),
+	CHAN5G(5745, 149),
+	CHAN5G(5765, 153),
+	CHAN5G(5785, 157),
+	CHAN5G(5805, 161),
+	CHAN5G(5825, 165)
+};
+
+#define RATE(_bitrate, _hw_rate, _flags) { \
+	.bitrate        = (_bitrate),                   \
+	.flags          = (_flags),                     \
+	.hw_value       = (_hw_rate),                   \
+	.hw_value_short = (_hw_rate)  \
+}
+
+static struct ieee80211_rate wcn_2ghz_rates[] = {
+	RATE(10, HW_RATE_INDEX_1MBPS, 0),
+	RATE(20, HW_RATE_INDEX_2MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
+	RATE(55, HW_RATE_INDEX_5_5MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
+	RATE(110, HW_RATE_INDEX_11MBPS, IEEE80211_RATE_SHORT_PREAMBLE),
+	RATE(60, HW_RATE_INDEX_6MBPS, 0),
+	RATE(90, HW_RATE_INDEX_9MBPS, 0),
+	RATE(120, HW_RATE_INDEX_12MBPS, 0),
+	RATE(180, HW_RATE_INDEX_18MBPS, 0),
+	RATE(240, HW_RATE_INDEX_24MBPS, 0),
+	RATE(360, HW_RATE_INDEX_36MBPS, 0),
+	RATE(480, HW_RATE_INDEX_48MBPS, 0),
+	RATE(540, HW_RATE_INDEX_54MBPS, 0)
+};
+
+static struct ieee80211_rate wcn_5ghz_rates[] = {
+	RATE(60, HW_RATE_INDEX_6MBPS, 0),
+	RATE(90, HW_RATE_INDEX_9MBPS, 0),
+	RATE(120, HW_RATE_INDEX_12MBPS, 0),
+	RATE(180, HW_RATE_INDEX_18MBPS, 0),
+	RATE(240, HW_RATE_INDEX_24MBPS, 0),
+	RATE(360, HW_RATE_INDEX_36MBPS, 0),
+	RATE(480, HW_RATE_INDEX_48MBPS, 0),
+	RATE(540, HW_RATE_INDEX_54MBPS, 0)
+};
+
+static struct ieee80211_supported_band wcn_band_2ghz = {
+	.channels	= wcn_2ghz_channels,
+	.n_channels	= ARRAY_SIZE(wcn_2ghz_channels),
+	.bitrates	= wcn_2ghz_rates,
+	.n_bitrates	= ARRAY_SIZE(wcn_2ghz_rates),
+	.ht_cap		= {
+		.cap =	IEEE80211_HT_CAP_GRN_FLD |
+			IEEE80211_HT_CAP_SGI_20 |
+			IEEE80211_HT_CAP_DSSSCCK40 |
+			IEEE80211_HT_CAP_LSIG_TXOP_PROT,
+		.ht_supported = true,
+		.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
+		.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
+		.mcs = {
+			.rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
+			.rx_highest = cpu_to_le16(72),
+			.tx_params = IEEE80211_HT_MCS_TX_DEFINED,
+		}
+	}
+};
+
+static struct ieee80211_supported_band wcn_band_5ghz = {
+	.channels	= wcn_5ghz_channels,
+	.n_channels	= ARRAY_SIZE(wcn_5ghz_channels),
+	.bitrates	= wcn_5ghz_rates,
+	.n_bitrates	= ARRAY_SIZE(wcn_5ghz_rates),
+	.ht_cap		= {
+		.cap =	IEEE80211_HT_CAP_GRN_FLD |
+			IEEE80211_HT_CAP_SGI_20 |
+			IEEE80211_HT_CAP_DSSSCCK40 |
+			IEEE80211_HT_CAP_LSIG_TXOP_PROT |
+			IEEE80211_HT_CAP_SGI_40 |
+			IEEE80211_HT_CAP_SUP_WIDTH_20_40,
+		.ht_supported = true,
+		.ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K,
+		.ampdu_density = IEEE80211_HT_MPDU_DENSITY_16,
+		.mcs = {
+			.rx_mask = { 0xff, 0, 0, 0, 0, 0, 0, 0, 0, 0, },
+			.rx_highest = cpu_to_le16(72),
+			.tx_params = IEEE80211_HT_MCS_TX_DEFINED,
+		}
+	}
+};
+
+#ifdef CONFIG_PM
+
+static const struct wiphy_wowlan_support wowlan_support = {
+	.flags = WIPHY_WOWLAN_ANY
+};
+
+#endif
+
+static inline u8 get_sta_index(struct ieee80211_vif *vif,
+			       struct wcn36xx_sta *sta_priv)
+{
+	return NL80211_IFTYPE_STATION == vif->type ?
+	       sta_priv->bss_sta_index :
+	       sta_priv->sta_index;
+}
+
+static int wcn36xx_start(struct ieee80211_hw *hw)
+{
+	struct wcn36xx *wcn = hw->priv;
+	int ret;
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac start\n");
+
+	/* SMD initialization */
+	ret = wcn36xx_smd_open(wcn);
+	if (ret) {
+		wcn36xx_err("Failed to open smd channel: %d\n", ret);
+		goto out_err;
+	}
+
+	/* Allocate memory pools for Mgmt BD headers and Data BD headers */
+	ret = wcn36xx_dxe_allocate_mem_pools(wcn);
+	if (ret) {
+		wcn36xx_err("Failed to alloc DXE mempool: %d\n", ret);
+		goto out_smd_close;
+	}
+
+	ret = wcn36xx_dxe_alloc_ctl_blks(wcn);
+	if (ret) {
+		wcn36xx_err("Failed to alloc DXE ctl blocks: %d\n", ret);
+		goto out_free_dxe_pool;
+	}
+
+	wcn->hal_buf = kmalloc(WCN36XX_HAL_BUF_SIZE, GFP_KERNEL);
+	if (!wcn->hal_buf) {
+		wcn36xx_err("Failed to allocate smd buf\n");
+		ret = -ENOMEM;
+		goto out_free_dxe_ctl;
+	}
+
+	ret = wcn36xx_smd_load_nv(wcn);
+	if (ret) {
+		wcn36xx_err("Failed to push NV to chip\n");
+		goto out_free_smd_buf;
+	}
+
+	ret = wcn36xx_smd_start(wcn);
+	if (ret) {
+		wcn36xx_err("Failed to start chip\n");
+		goto out_free_smd_buf;
+	}
+
+	/* DMA channel initialization */
+	ret = wcn36xx_dxe_init(wcn);
+	if (ret) {
+		wcn36xx_err("DXE init failed\n");
+		goto out_smd_stop;
+	}
+
+	wcn36xx_debugfs_init(wcn);
+
+	if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
+		ret = wcn36xx_smd_feature_caps_exchange(wcn);
+		if (ret)
+			wcn36xx_warn("Exchange feature caps failed\n");
+	}
+	INIT_LIST_HEAD(&wcn->vif_list);
+	return 0;
+
+out_smd_stop:
+	wcn36xx_smd_stop(wcn);
+out_free_smd_buf:
+	kfree(wcn->hal_buf);
+out_free_dxe_pool:
+	wcn36xx_dxe_free_mem_pools(wcn);
+out_free_dxe_ctl:
+	wcn36xx_dxe_free_ctl_blks(wcn);
+out_smd_close:
+	wcn36xx_smd_close(wcn);
+out_err:
+	return ret;
+}
+
+static void wcn36xx_stop(struct ieee80211_hw *hw)
+{
+	struct wcn36xx *wcn = hw->priv;
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac stop\n");
+
+	wcn36xx_debugfs_exit(wcn);
+	wcn36xx_smd_stop(wcn);
+	wcn36xx_dxe_deinit(wcn);
+	wcn36xx_smd_close(wcn);
+
+	wcn36xx_dxe_free_mem_pools(wcn);
+	wcn36xx_dxe_free_ctl_blks(wcn);
+
+	kfree(wcn->hal_buf);
+}
+
+static int wcn36xx_config(struct ieee80211_hw *hw, u32 changed)
+{
+	struct wcn36xx *wcn = hw->priv;
+	struct ieee80211_vif *vif = NULL;
+	struct wcn36xx_vif *tmp;
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac config changed 0x%08x\n", changed);
+
+	if (changed & IEEE80211_CONF_CHANGE_CHANNEL) {
+		int ch = WCN36XX_HW_CHANNEL(wcn);
+		wcn36xx_dbg(WCN36XX_DBG_MAC, "wcn36xx_config channel switch=%d\n",
+			    ch);
+		list_for_each_entry(tmp, &wcn->vif_list, list) {
+			vif = container_of((void *)tmp,
+					   struct ieee80211_vif,
+					   drv_priv);
+			wcn36xx_smd_switch_channel(wcn, vif, ch);
+		}
+	}
+
+	return 0;
+}
+
+#define WCN36XX_SUPPORTED_FILTERS (0)
+
+static void wcn36xx_configure_filter(struct ieee80211_hw *hw,
+				     unsigned int changed,
+				     unsigned int *total, u64 multicast)
+{
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac configure filter\n");
+
+	*total &= WCN36XX_SUPPORTED_FILTERS;
+}
+
+static void wcn36xx_tx(struct ieee80211_hw *hw,
+		       struct ieee80211_tx_control *control,
+		       struct sk_buff *skb)
+{
+	struct wcn36xx *wcn = hw->priv;
+	struct wcn36xx_sta *sta_priv = NULL;
+
+	if (control->sta)
+		sta_priv = (struct wcn36xx_sta *)control->sta->drv_priv;
+
+	if (wcn36xx_start_tx(wcn, sta_priv, skb))
+		ieee80211_free_txskb(wcn->hw, skb);
+}
+
+static int wcn36xx_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
+			   struct ieee80211_vif *vif,
+			   struct ieee80211_sta *sta,
+			   struct ieee80211_key_conf *key_conf)
+{
+	struct wcn36xx *wcn = hw->priv;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+	struct wcn36xx_sta *sta_priv = vif_priv->sta;
+	int ret = 0;
+	u8 key[WLAN_MAX_KEY_LEN];
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac80211 set key\n");
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "Key: cmd=0x%x algo:0x%x, id:%d, len:%d flags 0x%x\n",
+		    cmd, key_conf->cipher, key_conf->keyidx,
+		    key_conf->keylen, key_conf->flags);
+	wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "KEY: ",
+			 key_conf->key,
+			 key_conf->keylen);
+
+	switch (key_conf->cipher) {
+	case WLAN_CIPHER_SUITE_WEP40:
+		vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
+		break;
+	case WLAN_CIPHER_SUITE_WEP104:
+		vif_priv->encrypt_type = WCN36XX_HAL_ED_WEP40;
+		break;
+	case WLAN_CIPHER_SUITE_CCMP:
+		vif_priv->encrypt_type = WCN36XX_HAL_ED_CCMP;
+		break;
+	case WLAN_CIPHER_SUITE_TKIP:
+		vif_priv->encrypt_type = WCN36XX_HAL_ED_TKIP;
+		break;
+	default:
+		wcn36xx_err("Unsupported key type 0x%x\n",
+			      key_conf->cipher);
+		ret = -EOPNOTSUPP;
+		goto out;
+	}
+
+	switch (cmd) {
+	case SET_KEY:
+		if (WCN36XX_HAL_ED_TKIP == vif_priv->encrypt_type) {
+			/*
+			 * Supplicant is sending key in the wrong order:
+			 * Temporal Key (16 b) - TX MIC (8 b) - RX MIC (8 b)
+			 * but HW expects it to be in the order as described in
+			 * IEEE 802.11 spec (see chapter 11.7) like this:
+			 * Temporal Key (16 b) - RX MIC (8 b) - TX MIC (8 b)
+			 */
+			memcpy(key, key_conf->key, 16);
+			memcpy(key + 16, key_conf->key + 24, 8);
+			memcpy(key + 24, key_conf->key + 16, 8);
+		} else {
+			memcpy(key, key_conf->key, key_conf->keylen);
+		}
+
+		if (IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags) {
+			sta_priv->is_data_encrypted = true;
+			/* Reconfigure bss with encrypt_type */
+			if (NL80211_IFTYPE_STATION == vif->type)
+				wcn36xx_smd_config_bss(wcn,
+						       vif,
+						       sta,
+						       sta->addr,
+						       true);
+
+			wcn36xx_smd_set_stakey(wcn,
+				vif_priv->encrypt_type,
+				key_conf->keyidx,
+				key_conf->keylen,
+				key,
+				get_sta_index(vif, sta_priv));
+		} else {
+			wcn36xx_smd_set_bsskey(wcn,
+				vif_priv->encrypt_type,
+				key_conf->keyidx,
+				key_conf->keylen,
+				key);
+			if ((WLAN_CIPHER_SUITE_WEP40 == key_conf->cipher) ||
+			    (WLAN_CIPHER_SUITE_WEP104 == key_conf->cipher)) {
+				sta_priv->is_data_encrypted = true;
+				wcn36xx_smd_set_stakey(wcn,
+					vif_priv->encrypt_type,
+					key_conf->keyidx,
+					key_conf->keylen,
+					key,
+					get_sta_index(vif, sta_priv));
+			}
+		}
+		break;
+	case DISABLE_KEY:
+		if (!(IEEE80211_KEY_FLAG_PAIRWISE & key_conf->flags)) {
+			wcn36xx_smd_remove_bsskey(wcn,
+				vif_priv->encrypt_type,
+				key_conf->keyidx);
+		} else {
+			sta_priv->is_data_encrypted = false;
+			/* do not remove key if disassociated */
+			if (sta_priv->aid)
+				wcn36xx_smd_remove_stakey(wcn,
+					vif_priv->encrypt_type,
+					key_conf->keyidx,
+					get_sta_index(vif, sta_priv));
+		}
+		break;
+	default:
+		wcn36xx_err("Unsupported key cmd 0x%x\n", cmd);
+		ret = -EOPNOTSUPP;
+		goto out;
+		break;
+	}
+
+out:
+	return ret;
+}
+
+static void wcn36xx_sw_scan_start(struct ieee80211_hw *hw)
+{
+	struct wcn36xx *wcn = hw->priv;
+
+	wcn36xx_smd_init_scan(wcn, HAL_SYS_MODE_SCAN);
+	wcn36xx_smd_start_scan(wcn);
+}
+
+static void wcn36xx_sw_scan_complete(struct ieee80211_hw *hw)
+{
+	struct wcn36xx *wcn = hw->priv;
+
+	wcn36xx_smd_end_scan(wcn);
+	wcn36xx_smd_finish_scan(wcn, HAL_SYS_MODE_SCAN);
+}
+
+static void wcn36xx_update_allowed_rates(struct ieee80211_sta *sta,
+					 enum ieee80211_band band)
+{
+	int i, size;
+	u16 *rates_table;
+	struct wcn36xx_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
+	u32 rates = sta->supp_rates[band];
+
+	memset(&sta_priv->supported_rates, 0,
+		sizeof(sta_priv->supported_rates));
+	sta_priv->supported_rates.op_rate_mode = STA_11n;
+
+	size = ARRAY_SIZE(sta_priv->supported_rates.dsss_rates);
+	rates_table = sta_priv->supported_rates.dsss_rates;
+	if (band == IEEE80211_BAND_2GHZ) {
+		for (i = 0; i < size; i++) {
+			if (rates & 0x01) {
+				rates_table[i] = wcn_2ghz_rates[i].hw_value;
+				rates = rates >> 1;
+			}
+		}
+	}
+
+	size = ARRAY_SIZE(sta_priv->supported_rates.ofdm_rates);
+	rates_table = sta_priv->supported_rates.ofdm_rates;
+	for (i = 0; i < size; i++) {
+		if (rates & 0x01) {
+			rates_table[i] = wcn_5ghz_rates[i].hw_value;
+			rates = rates >> 1;
+		}
+	}
+
+	if (sta->ht_cap.ht_supported) {
+		BUILD_BUG_ON(sizeof(sta->ht_cap.mcs.rx_mask) >
+			sizeof(sta_priv->supported_rates.supported_mcs_set));
+		memcpy(sta_priv->supported_rates.supported_mcs_set,
+		       sta->ht_cap.mcs.rx_mask,
+		       sizeof(sta->ht_cap.mcs.rx_mask));
+	}
+}
+void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates)
+{
+	u16 ofdm_rates[WCN36XX_HAL_NUM_OFDM_RATES] = {
+		HW_RATE_INDEX_6MBPS,
+		HW_RATE_INDEX_9MBPS,
+		HW_RATE_INDEX_12MBPS,
+		HW_RATE_INDEX_18MBPS,
+		HW_RATE_INDEX_24MBPS,
+		HW_RATE_INDEX_36MBPS,
+		HW_RATE_INDEX_48MBPS,
+		HW_RATE_INDEX_54MBPS
+	};
+	u16 dsss_rates[WCN36XX_HAL_NUM_DSSS_RATES] = {
+		HW_RATE_INDEX_1MBPS,
+		HW_RATE_INDEX_2MBPS,
+		HW_RATE_INDEX_5_5MBPS,
+		HW_RATE_INDEX_11MBPS
+	};
+
+	rates->op_rate_mode = STA_11n;
+	memcpy(rates->dsss_rates, dsss_rates,
+		sizeof(*dsss_rates) * WCN36XX_HAL_NUM_DSSS_RATES);
+	memcpy(rates->ofdm_rates, ofdm_rates,
+		sizeof(*ofdm_rates) * WCN36XX_HAL_NUM_OFDM_RATES);
+	rates->supported_mcs_set[0] = 0xFF;
+}
+static void wcn36xx_bss_info_changed(struct ieee80211_hw *hw,
+				     struct ieee80211_vif *vif,
+				     struct ieee80211_bss_conf *bss_conf,
+				     u32 changed)
+{
+	struct wcn36xx *wcn = hw->priv;
+	struct sk_buff *skb = NULL;
+	u16 tim_off, tim_len;
+	enum wcn36xx_hal_link_state link_state;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss info changed vif %p changed 0x%08x\n",
+		    vif, changed);
+
+	if (changed & BSS_CHANGED_BEACON_INFO) {
+		wcn36xx_dbg(WCN36XX_DBG_MAC,
+			    "mac bss changed dtim period %d\n",
+			    bss_conf->dtim_period);
+
+		vif_priv->dtim_period = bss_conf->dtim_period;
+	}
+
+	if (changed & BSS_CHANGED_PS) {
+		wcn36xx_dbg(WCN36XX_DBG_MAC,
+			    "mac bss PS set %d\n",
+			    bss_conf->ps);
+		if (bss_conf->ps) {
+			wcn36xx_pmc_enter_bmps_state(wcn, vif);
+		} else {
+			wcn36xx_pmc_exit_bmps_state(wcn, vif);
+		}
+	}
+
+	if (changed & BSS_CHANGED_BSSID) {
+		wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed_bssid %pM\n",
+			    bss_conf->bssid);
+
+		if (!is_zero_ether_addr(bss_conf->bssid)) {
+			vif_priv->is_joining = true;
+			vif_priv->bss_index = 0xff;
+			wcn36xx_smd_join(wcn, bss_conf->bssid,
+					 vif->addr, WCN36XX_HW_CHANNEL(wcn));
+			wcn36xx_smd_config_bss(wcn, vif, NULL,
+					       bss_conf->bssid, false);
+		} else {
+			vif_priv->is_joining = false;
+			wcn36xx_smd_delete_bss(wcn, vif);
+		}
+	}
+
+	if (changed & BSS_CHANGED_SSID) {
+		wcn36xx_dbg(WCN36XX_DBG_MAC,
+			    "mac bss changed ssid\n");
+		wcn36xx_dbg_dump(WCN36XX_DBG_MAC, "ssid ",
+				 bss_conf->ssid, bss_conf->ssid_len);
+
+		vif_priv->ssid.length = bss_conf->ssid_len;
+		memcpy(&vif_priv->ssid.ssid,
+		       bss_conf->ssid,
+		       bss_conf->ssid_len);
+	}
+
+	if (changed & BSS_CHANGED_ASSOC) {
+		vif_priv->is_joining = false;
+		if (bss_conf->assoc) {
+			struct ieee80211_sta *sta;
+			struct wcn36xx_sta *sta_priv;
+
+			wcn36xx_dbg(WCN36XX_DBG_MAC,
+				    "mac assoc bss %pM vif %pM AID=%d\n",
+				     bss_conf->bssid,
+				     vif->addr,
+				     bss_conf->aid);
+
+			rcu_read_lock();
+			sta = ieee80211_find_sta(vif, bss_conf->bssid);
+			if (!sta) {
+				wcn36xx_err("sta %pM is not found\n",
+					      bss_conf->bssid);
+				rcu_read_unlock();
+				goto out;
+			}
+			sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
+
+			wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
+
+			wcn36xx_smd_set_link_st(wcn, bss_conf->bssid,
+				vif->addr,
+				WCN36XX_HAL_LINK_POSTASSOC_STATE);
+			wcn36xx_smd_config_bss(wcn, vif, sta,
+					       bss_conf->bssid,
+					       true);
+			sta_priv->aid = bss_conf->aid;
+			/*
+			 * config_sta must be called from  because this is the
+			 * place where AID is available.
+			 */
+			wcn36xx_smd_config_sta(wcn, vif, sta);
+			rcu_read_unlock();
+		} else {
+			wcn36xx_dbg(WCN36XX_DBG_MAC,
+				    "disassociated bss %pM vif %pM AID=%d\n",
+				    bss_conf->bssid,
+				    vif->addr,
+				    bss_conf->aid);
+			wcn36xx_smd_set_link_st(wcn,
+						bss_conf->bssid,
+						vif->addr,
+						WCN36XX_HAL_LINK_IDLE_STATE);
+		}
+	}
+
+	if (changed & BSS_CHANGED_AP_PROBE_RESP) {
+		wcn36xx_dbg(WCN36XX_DBG_MAC, "mac bss changed ap probe resp\n");
+		skb = ieee80211_proberesp_get(hw, vif);
+		if (!skb) {
+			wcn36xx_err("failed to alloc probereq skb\n");
+			goto out;
+		}
+
+		wcn36xx_smd_update_proberesp_tmpl(wcn, vif, skb);
+		dev_kfree_skb(skb);
+	}
+
+	if (changed & BSS_CHANGED_BEACON_ENABLED) {
+		wcn36xx_dbg(WCN36XX_DBG_MAC,
+			    "mac bss changed beacon enabled %d\n",
+			    bss_conf->enable_beacon);
+
+		if (bss_conf->enable_beacon) {
+			vif_priv->bss_index = 0xff;
+			wcn36xx_smd_config_bss(wcn, vif, NULL,
+					       vif->addr, false);
+			skb = ieee80211_beacon_get_tim(hw, vif, &tim_off,
+						       &tim_len);
+			if (!skb) {
+				wcn36xx_err("failed to alloc beacon skb\n");
+				goto out;
+			}
+			wcn36xx_smd_send_beacon(wcn, vif, skb, tim_off, 0);
+			dev_kfree_skb(skb);
+
+			if (vif->type == NL80211_IFTYPE_ADHOC ||
+			    vif->type == NL80211_IFTYPE_MESH_POINT)
+				link_state = WCN36XX_HAL_LINK_IBSS_STATE;
+			else
+				link_state = WCN36XX_HAL_LINK_AP_STATE;
+
+			wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
+						link_state);
+		} else {
+			wcn36xx_smd_set_link_st(wcn, vif->addr, vif->addr,
+						WCN36XX_HAL_LINK_IDLE_STATE);
+			wcn36xx_smd_delete_bss(wcn, vif);
+		}
+	}
+out:
+	return;
+}
+
+/* this is required when using IEEE80211_HW_HAS_RATE_CONTROL */
+static int wcn36xx_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
+{
+	struct wcn36xx *wcn = hw->priv;
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac set RTS threshold %d\n", value);
+
+	wcn36xx_smd_update_cfg(wcn, WCN36XX_HAL_CFG_RTS_THRESHOLD, value);
+	return 0;
+}
+
+static void wcn36xx_remove_interface(struct ieee80211_hw *hw,
+				     struct ieee80211_vif *vif)
+{
+	struct wcn36xx *wcn = hw->priv;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac remove interface vif %p\n", vif);
+
+	list_del(&vif_priv->list);
+	wcn36xx_smd_delete_sta_self(wcn, vif->addr);
+}
+
+static int wcn36xx_add_interface(struct ieee80211_hw *hw,
+				 struct ieee80211_vif *vif)
+{
+	struct wcn36xx *wcn = hw->priv;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac add interface vif %p type %d\n",
+		    vif, vif->type);
+
+	if (!(NL80211_IFTYPE_STATION == vif->type ||
+	      NL80211_IFTYPE_AP == vif->type ||
+	      NL80211_IFTYPE_ADHOC == vif->type ||
+	      NL80211_IFTYPE_MESH_POINT == vif->type)) {
+		wcn36xx_warn("Unsupported interface type requested: %d\n",
+			     vif->type);
+		return -EOPNOTSUPP;
+	}
+
+	list_add(&vif_priv->list, &wcn->vif_list);
+	wcn36xx_smd_add_sta_self(wcn, vif);
+
+	return 0;
+}
+
+static int wcn36xx_sta_add(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
+			   struct ieee80211_sta *sta)
+{
+	struct wcn36xx *wcn = hw->priv;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+	struct wcn36xx_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta add vif %p sta %pM\n",
+		    vif, sta->addr);
+
+	vif_priv->sta = sta_priv;
+	sta_priv->vif = vif_priv;
+	/*
+	 * For STA mode HW will be configured on BSS_CHANGED_ASSOC because
+	 * at this stage AID is not available yet.
+	 */
+	if (NL80211_IFTYPE_STATION != vif->type) {
+		wcn36xx_update_allowed_rates(sta, WCN36XX_BAND(wcn));
+		sta_priv->aid = sta->aid;
+		wcn36xx_smd_config_sta(wcn, vif, sta);
+	}
+	return 0;
+}
+
+static int wcn36xx_sta_remove(struct ieee80211_hw *hw,
+			      struct ieee80211_vif *vif,
+			      struct ieee80211_sta *sta)
+{
+	struct wcn36xx *wcn = hw->priv;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+	struct wcn36xx_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac sta remove vif %p sta %pM index %d\n",
+		    vif, sta->addr, sta_priv->sta_index);
+
+	wcn36xx_smd_delete_sta(wcn, sta_priv->sta_index);
+	vif_priv->sta = NULL;
+	sta_priv->vif = NULL;
+	return 0;
+}
+
+#ifdef CONFIG_PM
+
+static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow)
+{
+	struct wcn36xx *wcn = hw->priv;
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac suspend\n");
+
+	flush_workqueue(wcn->hal_ind_wq);
+	wcn36xx_smd_set_power_params(wcn, true);
+	return 0;
+}
+
+static int wcn36xx_resume(struct ieee80211_hw *hw)
+{
+	struct wcn36xx *wcn = hw->priv;
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac resume\n");
+
+	flush_workqueue(wcn->hal_ind_wq);
+	wcn36xx_smd_set_power_params(wcn, false);
+	return 0;
+}
+
+#endif
+
+static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
+		    struct ieee80211_vif *vif,
+		    enum ieee80211_ampdu_mlme_action action,
+		    struct ieee80211_sta *sta, u16 tid, u16 *ssn,
+		    u8 buf_size)
+{
+	struct wcn36xx *wcn = hw->priv;
+	struct wcn36xx_sta *sta_priv = NULL;
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "mac ampdu action action %d tid %d\n",
+		    action, tid);
+
+	sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
+
+	switch (action) {
+	case IEEE80211_AMPDU_RX_START:
+		sta_priv->tid = tid;
+		wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 0,
+			get_sta_index(vif, sta_priv));
+		wcn36xx_smd_add_ba(wcn);
+		wcn36xx_smd_trigger_ba(wcn, get_sta_index(vif, sta_priv));
+		ieee80211_start_tx_ba_session(sta, tid, 0);
+		break;
+	case IEEE80211_AMPDU_RX_STOP:
+		wcn36xx_smd_del_ba(wcn, tid, get_sta_index(vif, sta_priv));
+		break;
+	case IEEE80211_AMPDU_TX_START:
+		ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+		break;
+	case IEEE80211_AMPDU_TX_OPERATIONAL:
+		wcn36xx_smd_add_ba_session(wcn, sta, tid, ssn, 1,
+			get_sta_index(vif, sta_priv));
+		break;
+	case IEEE80211_AMPDU_TX_STOP_FLUSH:
+	case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
+	case IEEE80211_AMPDU_TX_STOP_CONT:
+		ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
+		break;
+	default:
+		wcn36xx_err("Unknown AMPDU action\n");
+	}
+
+	return 0;
+}
+
+static const struct ieee80211_ops wcn36xx_ops = {
+	.start			= wcn36xx_start,
+	.stop			= wcn36xx_stop,
+	.add_interface		= wcn36xx_add_interface,
+	.remove_interface	= wcn36xx_remove_interface,
+#ifdef CONFIG_PM
+	.suspend		= wcn36xx_suspend,
+	.resume			= wcn36xx_resume,
+#endif
+	.config			= wcn36xx_config,
+	.configure_filter       = wcn36xx_configure_filter,
+	.tx			= wcn36xx_tx,
+	.set_key		= wcn36xx_set_key,
+	.sw_scan_start		= wcn36xx_sw_scan_start,
+	.sw_scan_complete	= wcn36xx_sw_scan_complete,
+	.bss_info_changed	= wcn36xx_bss_info_changed,
+	.set_rts_threshold	= wcn36xx_set_rts_threshold,
+	.sta_add		= wcn36xx_sta_add,
+	.sta_remove		= wcn36xx_sta_remove,
+	.ampdu_action		= wcn36xx_ampdu_action,
+};
+
+static int wcn36xx_init_ieee80211(struct wcn36xx *wcn)
+{
+	int ret = 0;
+
+	static const u32 cipher_suites[] = {
+		WLAN_CIPHER_SUITE_WEP40,
+		WLAN_CIPHER_SUITE_WEP104,
+		WLAN_CIPHER_SUITE_TKIP,
+		WLAN_CIPHER_SUITE_CCMP,
+	};
+
+	wcn->hw->flags = IEEE80211_HW_SIGNAL_DBM |
+		IEEE80211_HW_HAS_RATE_CONTROL |
+		IEEE80211_HW_SUPPORTS_PS |
+		IEEE80211_HW_CONNECTION_MONITOR |
+		IEEE80211_HW_AMPDU_AGGREGATION |
+		IEEE80211_HW_TIMING_BEACON_ONLY;
+
+	wcn->hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
+		BIT(NL80211_IFTYPE_AP) |
+		BIT(NL80211_IFTYPE_ADHOC) |
+		BIT(NL80211_IFTYPE_MESH_POINT);
+
+	wcn->hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &wcn_band_2ghz;
+	wcn->hw->wiphy->bands[IEEE80211_BAND_5GHZ] = &wcn_band_5ghz;
+
+	wcn->hw->wiphy->cipher_suites = cipher_suites;
+	wcn->hw->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
+
+	wcn->hw->wiphy->flags |= WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD;
+
+#ifdef CONFIG_PM
+	wcn->hw->wiphy->wowlan = &wowlan_support;
+#endif
+
+	wcn->hw->max_listen_interval = 200;
+
+	wcn->hw->queues = 4;
+
+	SET_IEEE80211_DEV(wcn->hw, wcn->dev);
+
+	wcn->hw->sta_data_size = sizeof(struct wcn36xx_sta);
+	wcn->hw->vif_data_size = sizeof(struct wcn36xx_vif);
+
+	return ret;
+}
+
+static int wcn36xx_platform_get_resources(struct wcn36xx *wcn,
+					  struct platform_device *pdev)
+{
+	struct resource *res;
+	/* Set TX IRQ */
+	res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
+					   "wcnss_wlantx_irq");
+	if (!res) {
+		wcn36xx_err("failed to get tx_irq\n");
+		return -ENOENT;
+	}
+	wcn->tx_irq = res->start;
+
+	/* Set RX IRQ */
+	res = platform_get_resource_byname(pdev, IORESOURCE_IRQ,
+					   "wcnss_wlanrx_irq");
+	if (!res) {
+		wcn36xx_err("failed to get rx_irq\n");
+		return -ENOENT;
+	}
+	wcn->rx_irq = res->start;
+
+	/* Map the memory */
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM,
+						 "wcnss_mmio");
+	if (!res) {
+		wcn36xx_err("failed to get mmio\n");
+		return -ENOENT;
+	}
+	wcn->mmio = ioremap(res->start, resource_size(res));
+	if (!wcn->mmio) {
+		wcn36xx_err("failed to map io memory\n");
+		return -ENOMEM;
+	}
+	return 0;
+}
+
+static int wcn36xx_probe(struct platform_device *pdev)
+{
+	struct ieee80211_hw *hw;
+	struct wcn36xx *wcn;
+	int ret;
+	u8 addr[ETH_ALEN];
+
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "platform probe\n");
+
+	hw = ieee80211_alloc_hw(sizeof(struct wcn36xx), &wcn36xx_ops);
+	if (!hw) {
+		wcn36xx_err("failed to alloc hw\n");
+		ret = -ENOMEM;
+		goto out_err;
+	}
+	platform_set_drvdata(pdev, hw);
+	wcn = hw->priv;
+	wcn->hw = hw;
+	wcn->dev = &pdev->dev;
+	wcn->ctrl_ops = pdev->dev.platform_data;
+
+	mutex_init(&wcn->hal_mutex);
+
+	if (!wcn->ctrl_ops->get_hw_mac(addr)) {
+		wcn36xx_info("mac address: %pM\n", addr);
+		SET_IEEE80211_PERM_ADDR(wcn->hw, addr);
+	}
+
+	ret = wcn36xx_platform_get_resources(wcn, pdev);
+	if (ret)
+		goto out_wq;
+
+	wcn36xx_init_ieee80211(wcn);
+	ret = ieee80211_register_hw(wcn->hw);
+	if (ret)
+		goto out_unmap;
+
+	return 0;
+
+out_unmap:
+	iounmap(wcn->mmio);
+out_wq:
+	ieee80211_free_hw(hw);
+out_err:
+	return ret;
+}
+static int wcn36xx_remove(struct platform_device *pdev)
+{
+	struct ieee80211_hw *hw = platform_get_drvdata(pdev);
+	struct wcn36xx *wcn = hw->priv;
+	wcn36xx_dbg(WCN36XX_DBG_MAC, "platform remove\n");
+
+	mutex_destroy(&wcn->hal_mutex);
+
+	ieee80211_unregister_hw(hw);
+	iounmap(wcn->mmio);
+	ieee80211_free_hw(hw);
+
+	return 0;
+}
+static const struct platform_device_id wcn36xx_platform_id_table[] = {
+	{
+		.name = "wcn36xx",
+		.driver_data = 0
+	},
+	{}
+};
+MODULE_DEVICE_TABLE(platform, wcn36xx_platform_id_table);
+
+static struct platform_driver wcn36xx_driver = {
+	.probe      = wcn36xx_probe,
+	.remove     = wcn36xx_remove,
+	.driver         = {
+		.name   = "wcn36xx",
+		.owner  = THIS_MODULE,
+	},
+	.id_table    = wcn36xx_platform_id_table,
+};
+
+static int __init wcn36xx_init(void)
+{
+	platform_driver_register(&wcn36xx_driver);
+	return 0;
+}
+module_init(wcn36xx_init);
+
+static void __exit wcn36xx_exit(void)
+{
+	platform_driver_unregister(&wcn36xx_driver);
+}
+module_exit(wcn36xx_exit);
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("Eugene Krasnikov k.eugene.e@gmail.com");
+MODULE_FIRMWARE(WLAN_NV_FILE);
diff --git a/drivers/net/wireless/ath/wcn36xx/pmc.c b/drivers/net/wireless/ath/wcn36xx/pmc.c
new file mode 100644
index 000000000000..28b515c81b0e
--- /dev/null
+++ b/drivers/net/wireless/ath/wcn36xx/pmc.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include "wcn36xx.h"
+
+int wcn36xx_pmc_enter_bmps_state(struct wcn36xx *wcn,
+				 struct ieee80211_vif *vif)
+{
+	int ret = 0;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+	/* TODO: Make sure the TX chain clean */
+	ret = wcn36xx_smd_enter_bmps(wcn, vif);
+	if (!ret) {
+		wcn36xx_dbg(WCN36XX_DBG_PMC, "Entered BMPS\n");
+		vif_priv->pw_state = WCN36XX_BMPS;
+	} else {
+		/*
+		 * One of the reasons why HW will not enter BMPS is because
+		 * driver is trying to enter bmps before first beacon was
+		 * received just after auth complete
+		 */
+		wcn36xx_err("Can not enter BMPS!\n");
+	}
+	return ret;
+}
+
+int wcn36xx_pmc_exit_bmps_state(struct wcn36xx *wcn,
+				struct ieee80211_vif *vif)
+{
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+
+	if (WCN36XX_BMPS != vif_priv->pw_state) {
+		wcn36xx_err("Not in BMPS mode, no need to exit from BMPS mode!\n");
+		return -EINVAL;
+	}
+	wcn36xx_smd_exit_bmps(wcn, vif);
+	vif_priv->pw_state = WCN36XX_FULL_POWER;
+	return 0;
+}
+
+int wcn36xx_enable_keep_alive_null_packet(struct wcn36xx *wcn,
+					  struct ieee80211_vif *vif)
+{
+	wcn36xx_dbg(WCN36XX_DBG_PMC, "%s\n", __func__);
+	return wcn36xx_smd_keep_alive_req(wcn, vif,
+					  WCN36XX_HAL_KEEP_ALIVE_NULL_PKT);
+}
diff --git a/drivers/net/wireless/ath/wcn36xx/pmc.h b/drivers/net/wireless/ath/wcn36xx/pmc.h
new file mode 100644
index 000000000000..f72ed68b5a07
--- /dev/null
+++ b/drivers/net/wireless/ath/wcn36xx/pmc.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _WCN36XX_PMC_H_
+#define _WCN36XX_PMC_H_
+
+struct wcn36xx;
+
+enum wcn36xx_power_state {
+	WCN36XX_FULL_POWER,
+	WCN36XX_BMPS
+};
+
+int wcn36xx_pmc_enter_bmps_state(struct wcn36xx *wcn,
+				 struct ieee80211_vif *vif);
+int wcn36xx_pmc_exit_bmps_state(struct wcn36xx *wcn,
+				struct ieee80211_vif *vif);
+int wcn36xx_enable_keep_alive_null_packet(struct wcn36xx *wcn,
+					  struct ieee80211_vif *vif);
+#endif	/* _WCN36XX_PMC_H_ */
diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c
new file mode 100644
index 000000000000..f8c3a10510c2
--- /dev/null
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c
@@ -0,0 +1,2126 @@
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/etherdevice.h>
+#include <linux/firmware.h>
+#include <linux/bitops.h>
+#include "smd.h"
+
+static int put_cfg_tlv_u32(struct wcn36xx *wcn, size_t *len, u32 id, u32 value)
+{
+	struct wcn36xx_hal_cfg *entry;
+	u32 *val;
+
+	if (*len + sizeof(*entry) + sizeof(u32) >= WCN36XX_HAL_BUF_SIZE) {
+		wcn36xx_err("Not enough room for TLV entry\n");
+		return -ENOMEM;
+	}
+
+	entry = (struct wcn36xx_hal_cfg *) (wcn->hal_buf + *len);
+	entry->id = id;
+	entry->len = sizeof(u32);
+	entry->pad_bytes = 0;
+	entry->reserve = 0;
+
+	val = (u32 *) (entry + 1);
+	*val = value;
+
+	*len += sizeof(*entry) + sizeof(u32);
+
+	return 0;
+}
+
+static void wcn36xx_smd_set_bss_nw_type(struct wcn36xx *wcn,
+		struct ieee80211_sta *sta,
+		struct wcn36xx_hal_config_bss_params *bss_params)
+{
+	if (IEEE80211_BAND_5GHZ == WCN36XX_BAND(wcn))
+		bss_params->nw_type = WCN36XX_HAL_11A_NW_TYPE;
+	else if (sta && sta->ht_cap.ht_supported)
+		bss_params->nw_type = WCN36XX_HAL_11N_NW_TYPE;
+	else if (sta && (sta->supp_rates[IEEE80211_BAND_2GHZ] & 0x7f))
+		bss_params->nw_type = WCN36XX_HAL_11G_NW_TYPE;
+	else
+		bss_params->nw_type = WCN36XX_HAL_11B_NW_TYPE;
+}
+
+static inline u8 is_cap_supported(unsigned long caps, unsigned long flag)
+{
+	return caps & flag ? 1 : 0;
+}
+static void wcn36xx_smd_set_bss_ht_params(struct ieee80211_vif *vif,
+		struct ieee80211_sta *sta,
+		struct wcn36xx_hal_config_bss_params *bss_params)
+{
+	if (sta && sta->ht_cap.ht_supported) {
+		unsigned long caps = sta->ht_cap.cap;
+		bss_params->ht = sta->ht_cap.ht_supported;
+		bss_params->tx_channel_width_set = is_cap_supported(caps,
+			IEEE80211_HT_CAP_SUP_WIDTH_20_40);
+		bss_params->lsig_tx_op_protection_full_support =
+			is_cap_supported(caps,
+					 IEEE80211_HT_CAP_LSIG_TXOP_PROT);
+
+		bss_params->ht_oper_mode = vif->bss_conf.ht_operation_mode;
+		bss_params->lln_non_gf_coexist =
+			!!(vif->bss_conf.ht_operation_mode &
+			   IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
+		/* IEEE80211_HT_STBC_PARAM_DUAL_CTS_PROT */
+		bss_params->dual_cts_protection = 0;
+		/* IEEE80211_HT_OP_MODE_PROTECTION_20MHZ */
+		bss_params->ht20_coexist = 0;
+	}
+}
+
+static void wcn36xx_smd_set_sta_ht_params(struct ieee80211_sta *sta,
+		struct wcn36xx_hal_config_sta_params *sta_params)
+{
+	if (sta->ht_cap.ht_supported) {
+		unsigned long caps = sta->ht_cap.cap;
+		sta_params->ht_capable = sta->ht_cap.ht_supported;
+		sta_params->tx_channel_width_set = is_cap_supported(caps,
+			IEEE80211_HT_CAP_SUP_WIDTH_20_40);
+		sta_params->lsig_txop_protection = is_cap_supported(caps,
+			IEEE80211_HT_CAP_LSIG_TXOP_PROT);
+
+		sta_params->max_ampdu_size = sta->ht_cap.ampdu_factor;
+		sta_params->max_ampdu_density = sta->ht_cap.ampdu_density;
+		sta_params->max_amsdu_size = is_cap_supported(caps,
+			IEEE80211_HT_CAP_MAX_AMSDU);
+		sta_params->sgi_20Mhz = is_cap_supported(caps,
+			IEEE80211_HT_CAP_SGI_20);
+		sta_params->sgi_40mhz =	is_cap_supported(caps,
+			IEEE80211_HT_CAP_SGI_40);
+		sta_params->green_field_capable = is_cap_supported(caps,
+			IEEE80211_HT_CAP_GRN_FLD);
+		sta_params->delayed_ba_support = is_cap_supported(caps,
+			IEEE80211_HT_CAP_DELAY_BA);
+		sta_params->dsss_cck_mode_40mhz = is_cap_supported(caps,
+			IEEE80211_HT_CAP_DSSSCCK40);
+	}
+}
+
+static void wcn36xx_smd_set_sta_params(struct wcn36xx *wcn,
+		struct ieee80211_vif *vif,
+		struct ieee80211_sta *sta,
+		struct wcn36xx_hal_config_sta_params *sta_params)
+{
+	struct wcn36xx_vif *priv_vif = (struct wcn36xx_vif *)vif->drv_priv;
+	struct wcn36xx_sta *priv_sta = NULL;
+	if (vif->type == NL80211_IFTYPE_ADHOC ||
+	    vif->type == NL80211_IFTYPE_AP ||
+	    vif->type == NL80211_IFTYPE_MESH_POINT) {
+		sta_params->type = 1;
+		sta_params->sta_index = 0xFF;
+	} else {
+		sta_params->type = 0;
+		sta_params->sta_index = 1;
+	}
+
+	sta_params->listen_interval = WCN36XX_LISTEN_INTERVAL(wcn);
+
+	/*
+	 * In STA mode ieee80211_sta contains bssid and ieee80211_vif
+	 * contains our mac address. In  AP mode we are bssid so vif
+	 * contains bssid and ieee80211_sta contains mac.
+	 */
+	if (NL80211_IFTYPE_STATION == vif->type)
+		memcpy(&sta_params->mac, vif->addr, ETH_ALEN);
+	else
+		memcpy(&sta_params->bssid, vif->addr, ETH_ALEN);
+
+	sta_params->encrypt_type = priv_vif->encrypt_type;
+	sta_params->short_preamble_supported =
+		!(WCN36XX_FLAGS(wcn) &
+		  IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE);
+
+	sta_params->rifs_mode = 0;
+	sta_params->rmf = 0;
+	sta_params->action = 0;
+	sta_params->uapsd = 0;
+	sta_params->mimo_ps = WCN36XX_HAL_HT_MIMO_PS_STATIC;
+	sta_params->max_ampdu_duration = 0;
+	sta_params->bssid_index = priv_vif->bss_index;
+	sta_params->p2p = 0;
+
+	if (sta) {
+		priv_sta = (struct wcn36xx_sta *)sta->drv_priv;
+		if (NL80211_IFTYPE_STATION == vif->type)
+			memcpy(&sta_params->bssid, sta->addr, ETH_ALEN);
+		else
+			memcpy(&sta_params->mac, sta->addr, ETH_ALEN);
+		sta_params->wmm_enabled = sta->wme;
+		sta_params->max_sp_len = sta->max_sp;
+		sta_params->aid = priv_sta->aid;
+		wcn36xx_smd_set_sta_ht_params(sta, sta_params);
+		memcpy(&sta_params->supported_rates, &priv_sta->supported_rates,
+			sizeof(priv_sta->supported_rates));
+	} else {
+		wcn36xx_set_default_rates(&sta_params->supported_rates);
+	}
+}
+
+static int wcn36xx_smd_send_and_wait(struct wcn36xx *wcn, size_t len)
+{
+	int ret = 0;
+	wcn36xx_dbg_dump(WCN36XX_DBG_SMD_DUMP, "HAL >>> ", wcn->hal_buf, len);
+
+	init_completion(&wcn->hal_rsp_compl);
+	ret = wcn->ctrl_ops->tx(wcn->hal_buf, len);
+	if (ret) {
+		wcn36xx_err("HAL TX failed\n");
+		goto out;
+	}
+	if (wait_for_completion_timeout(&wcn->hal_rsp_compl,
+		msecs_to_jiffies(HAL_MSG_TIMEOUT)) <= 0) {
+		wcn36xx_err("Timeout while waiting SMD response\n");
+		ret = -ETIME;
+		goto out;
+	}
+out:
+	return ret;
+}
+
+#define INIT_HAL_MSG(msg_body, type) \
+	do {								\
+		memset(&msg_body, 0, sizeof(msg_body));			\
+		msg_body.header.msg_type = type;			\
+		msg_body.header.msg_version = WCN36XX_HAL_MSG_VERSION0; \
+		msg_body.header.len = sizeof(msg_body);			\
+	} while (0)							\
+
+#define PREPARE_HAL_BUF(send_buf, msg_body) \
+	do {							\
+		memset(send_buf, 0, msg_body.header.len);	\
+		memcpy(send_buf, &msg_body, sizeof(msg_body));	\
+	} while (0)						\
+
+static int wcn36xx_smd_rsp_status_check(void *buf, size_t len)
+{
+	struct wcn36xx_fw_msg_status_rsp *rsp;
+
+	if (len < sizeof(struct wcn36xx_hal_msg_header) +
+	    sizeof(struct wcn36xx_fw_msg_status_rsp))
+		return -EIO;
+
+	rsp = (struct wcn36xx_fw_msg_status_rsp *)
+		(buf + sizeof(struct wcn36xx_hal_msg_header));
+
+	if (WCN36XX_FW_MSG_RESULT_SUCCESS != rsp->status)
+		return rsp->status;
+
+	return 0;
+}
+
+int wcn36xx_smd_load_nv(struct wcn36xx *wcn)
+{
+	const struct firmware *nv;
+	struct nv_data *nv_d;
+	struct wcn36xx_hal_nv_img_download_req_msg msg_body;
+	int fw_bytes_left;
+	int ret;
+	u16 fm_offset = 0;
+
+	ret = request_firmware(&nv, WLAN_NV_FILE, wcn->dev);
+	if (ret) {
+		wcn36xx_err("Failed to load nv file %s: %d\n",
+			      WLAN_NV_FILE, ret);
+		goto out_free_nv;
+	}
+
+	nv_d = (struct nv_data *)nv->data;
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_DOWNLOAD_NV_REQ);
+
+	msg_body.header.len += WCN36XX_NV_FRAGMENT_SIZE;
+
+	msg_body.frag_number = 0;
+	/* hal_buf must be protected with  mutex */
+	mutex_lock(&wcn->hal_mutex);
+
+	do {
+		fw_bytes_left = nv->size - fm_offset - 4;
+		if (fw_bytes_left > WCN36XX_NV_FRAGMENT_SIZE) {
+			msg_body.last_fragment = 0;
+			msg_body.nv_img_buffer_size = WCN36XX_NV_FRAGMENT_SIZE;
+		} else {
+			msg_body.last_fragment = 1;
+			msg_body.nv_img_buffer_size = fw_bytes_left;
+
+			/* Do not forget update general message len */
+			msg_body.header.len = sizeof(msg_body) + fw_bytes_left;
+
+		}
+
+		/* Add load NV request message header */
+		memcpy(wcn->hal_buf, &msg_body,	sizeof(msg_body));
+
+		/* Add NV body itself */
+		memcpy(wcn->hal_buf + sizeof(msg_body),
+		       &nv_d->table + fm_offset,
+		       msg_body.nv_img_buffer_size);
+
+		ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+		if (ret)
+			goto out_unlock;
+		ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf,
+						   wcn->hal_rsp_len);
+		if (ret) {
+			wcn36xx_err("hal_load_nv response failed err=%d\n",
+				    ret);
+			goto out_unlock;
+		}
+		msg_body.frag_number++;
+		fm_offset += WCN36XX_NV_FRAGMENT_SIZE;
+
+	} while (msg_body.last_fragment != 1);
+
+out_unlock:
+	mutex_unlock(&wcn->hal_mutex);
+out_free_nv:
+	release_firmware(nv);
+
+	return ret;
+}
+
+static int wcn36xx_smd_start_rsp(struct wcn36xx *wcn, void *buf, size_t len)
+{
+	struct wcn36xx_hal_mac_start_rsp_msg *rsp;
+
+	if (len < sizeof(*rsp))
+		return -EIO;
+
+	rsp = (struct wcn36xx_hal_mac_start_rsp_msg *)buf;
+
+	if (WCN36XX_FW_MSG_RESULT_SUCCESS != rsp->start_rsp_params.status)
+		return -EIO;
+
+	memcpy(wcn->crm_version, rsp->start_rsp_params.crm_version,
+	       WCN36XX_HAL_VERSION_LENGTH);
+	memcpy(wcn->wlan_version, rsp->start_rsp_params.wlan_version,
+	       WCN36XX_HAL_VERSION_LENGTH);
+
+	/* null terminate the strings, just in case */
+	wcn->crm_version[WCN36XX_HAL_VERSION_LENGTH] = '\0';
+	wcn->wlan_version[WCN36XX_HAL_VERSION_LENGTH] = '\0';
+
+	wcn->fw_revision = rsp->start_rsp_params.version.revision;
+	wcn->fw_version = rsp->start_rsp_params.version.version;
+	wcn->fw_minor = rsp->start_rsp_params.version.minor;
+	wcn->fw_major = rsp->start_rsp_params.version.major;
+
+	wcn36xx_info("firmware WLAN version '%s' and CRM version '%s'\n",
+		     wcn->wlan_version, wcn->crm_version);
+
+	wcn36xx_info("firmware API %u.%u.%u.%u, %u stations, %u bssids\n",
+		     wcn->fw_major, wcn->fw_minor,
+		     wcn->fw_version, wcn->fw_revision,
+		     rsp->start_rsp_params.stations,
+		     rsp->start_rsp_params.bssids);
+
+	return 0;
+}
+
+int wcn36xx_smd_start(struct wcn36xx *wcn)
+{
+	struct wcn36xx_hal_mac_start_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_START_REQ);
+
+	msg_body.params.type = DRIVER_TYPE_PRODUCTION;
+	msg_body.params.len = 0;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL, "hal start type %d\n",
+		    msg_body.params.type);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_start failed\n");
+		goto out;
+	}
+
+	ret = wcn36xx_smd_start_rsp(wcn, wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_start response failed err=%d\n", ret);
+		goto out;
+	}
+
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_stop(struct wcn36xx *wcn)
+{
+	struct wcn36xx_hal_mac_stop_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_STOP_REQ);
+
+	msg_body.stop_req_params.reason = HAL_STOP_TYPE_RF_KILL;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_stop failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_stop response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_init_scan(struct wcn36xx *wcn, enum wcn36xx_hal_sys_mode mode)
+{
+	struct wcn36xx_hal_init_scan_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_INIT_SCAN_REQ);
+
+	msg_body.mode = mode;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL, "hal init scan mode %d\n", msg_body.mode);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_init_scan failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_init_scan response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_start_scan(struct wcn36xx *wcn)
+{
+	struct wcn36xx_hal_start_scan_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_START_SCAN_REQ);
+
+	msg_body.scan_channel = WCN36XX_HW_CHANNEL(wcn);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL, "hal start scan channel %d\n",
+		    msg_body.scan_channel);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_start_scan failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_start_scan response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_end_scan(struct wcn36xx *wcn)
+{
+	struct wcn36xx_hal_end_scan_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_END_SCAN_REQ);
+
+	msg_body.scan_channel = WCN36XX_HW_CHANNEL(wcn);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL, "hal end scan channel %d\n",
+		    msg_body.scan_channel);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_end_scan failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_end_scan response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_finish_scan(struct wcn36xx *wcn,
+			    enum wcn36xx_hal_sys_mode mode)
+{
+	struct wcn36xx_hal_finish_scan_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_FINISH_SCAN_REQ);
+
+	msg_body.mode = mode;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL, "hal finish scan mode %d\n",
+		    msg_body.mode);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_finish_scan failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_finish_scan response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+static int wcn36xx_smd_switch_channel_rsp(void *buf, size_t len)
+{
+	struct wcn36xx_hal_switch_channel_rsp_msg *rsp;
+	int ret = 0;
+
+	ret = wcn36xx_smd_rsp_status_check(buf, len);
+	if (ret)
+		return ret;
+	rsp = (struct wcn36xx_hal_switch_channel_rsp_msg *)buf;
+	wcn36xx_dbg(WCN36XX_DBG_HAL, "channel switched to: %d, status: %d\n",
+		    rsp->channel_number, rsp->status);
+	return ret;
+}
+
+int wcn36xx_smd_switch_channel(struct wcn36xx *wcn,
+			       struct ieee80211_vif *vif, int ch)
+{
+	struct wcn36xx_hal_switch_channel_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_CH_SWITCH_REQ);
+
+	msg_body.channel_number = (u8)ch;
+	msg_body.tx_mgmt_power = 0xbf;
+	msg_body.max_tx_power = 0xbf;
+	memcpy(msg_body.self_sta_mac_addr, vif->addr, ETH_ALEN);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_switch_channel failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_switch_channel_rsp(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_switch_channel response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+static int wcn36xx_smd_update_scan_params_rsp(void *buf, size_t len)
+{
+	struct wcn36xx_hal_update_scan_params_resp *rsp;
+
+	rsp = (struct wcn36xx_hal_update_scan_params_resp *)buf;
+
+	/* Remove the PNO version bit */
+	rsp->status &= (~(WCN36XX_FW_MSG_PNO_VERSION_MASK));
+
+	if (WCN36XX_FW_MSG_RESULT_SUCCESS != rsp->status) {
+		wcn36xx_warn("error response from update scan\n");
+		return rsp->status;
+	}
+
+	return 0;
+}
+
+int wcn36xx_smd_update_scan_params(struct wcn36xx *wcn)
+{
+	struct wcn36xx_hal_update_scan_params_req msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_UPDATE_SCAN_PARAM_REQ);
+
+	msg_body.dot11d_enabled	= 0;
+	msg_body.dot11d_resolved = 0;
+	msg_body.channel_count = 26;
+	msg_body.active_min_ch_time = 60;
+	msg_body.active_max_ch_time = 120;
+	msg_body.passive_min_ch_time = 60;
+	msg_body.passive_max_ch_time = 110;
+	msg_body.state = 0;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal update scan params channel_count %d\n",
+		    msg_body.channel_count);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_update_scan_params failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_update_scan_params_rsp(wcn->hal_buf,
+						 wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_update_scan_params response failed err=%d\n",
+			    ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+static int wcn36xx_smd_add_sta_self_rsp(struct wcn36xx *wcn,
+					struct ieee80211_vif *vif,
+					void *buf,
+					size_t len)
+{
+	struct wcn36xx_hal_add_sta_self_rsp_msg *rsp;
+	struct wcn36xx_vif *priv_vif = (struct wcn36xx_vif *)vif->drv_priv;
+
+	if (len < sizeof(*rsp))
+		return -EINVAL;
+
+	rsp = (struct wcn36xx_hal_add_sta_self_rsp_msg *)buf;
+
+	if (rsp->status != WCN36XX_FW_MSG_RESULT_SUCCESS) {
+		wcn36xx_warn("hal add sta self failure: %d\n",
+			     rsp->status);
+		return rsp->status;
+	}
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal add sta self status %d self_sta_index %d dpu_index %d\n",
+		    rsp->status, rsp->self_sta_index, rsp->dpu_index);
+
+	priv_vif->self_sta_index = rsp->self_sta_index;
+	priv_vif->self_dpu_desc_index = rsp->dpu_index;
+
+	return 0;
+}
+
+int wcn36xx_smd_add_sta_self(struct wcn36xx *wcn, struct ieee80211_vif *vif)
+{
+	struct wcn36xx_hal_add_sta_self_req msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_ADD_STA_SELF_REQ);
+
+	memcpy(&msg_body.self_addr, vif->addr, ETH_ALEN);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal add sta self self_addr %pM status %d\n",
+		    msg_body.self_addr, msg_body.status);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_add_sta_self failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_add_sta_self_rsp(wcn,
+					   vif,
+					   wcn->hal_buf,
+					   wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_add_sta_self response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_delete_sta_self(struct wcn36xx *wcn, u8 *addr)
+{
+	struct wcn36xx_hal_del_sta_self_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_DEL_STA_SELF_REQ);
+
+	memcpy(&msg_body.self_addr, addr, ETH_ALEN);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_delete_sta_self failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_delete_sta_self response failed err=%d\n",
+			    ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_delete_sta(struct wcn36xx *wcn, u8 sta_index)
+{
+	struct wcn36xx_hal_delete_sta_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_DELETE_STA_REQ);
+
+	msg_body.sta_index = sta_index;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal delete sta sta_index %d\n",
+		    msg_body.sta_index);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_delete_sta failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_delete_sta response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+static int wcn36xx_smd_join_rsp(void *buf, size_t len)
+{
+	struct wcn36xx_hal_join_rsp_msg *rsp;
+
+	if (wcn36xx_smd_rsp_status_check(buf, len))
+		return -EIO;
+
+	rsp = (struct wcn36xx_hal_join_rsp_msg *)buf;
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal rsp join status %d tx_mgmt_power %d\n",
+		    rsp->status, rsp->tx_mgmt_power);
+
+	return 0;
+}
+
+int wcn36xx_smd_join(struct wcn36xx *wcn, const u8 *bssid, u8 *vif, u8 ch)
+{
+	struct wcn36xx_hal_join_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_JOIN_REQ);
+
+	memcpy(&msg_body.bssid, bssid, ETH_ALEN);
+	memcpy(&msg_body.self_sta_mac_addr, vif, ETH_ALEN);
+	msg_body.channel = ch;
+
+	if (conf_is_ht40_minus(&wcn->hw->conf))
+		msg_body.secondary_channel_offset =
+			PHY_DOUBLE_CHANNEL_HIGH_PRIMARY;
+	else if (conf_is_ht40_plus(&wcn->hw->conf))
+		msg_body.secondary_channel_offset =
+			PHY_DOUBLE_CHANNEL_LOW_PRIMARY;
+	else
+		msg_body.secondary_channel_offset =
+			PHY_SINGLE_CHANNEL_CENTERED;
+
+	msg_body.link_state = WCN36XX_HAL_LINK_PREASSOC_STATE;
+
+	msg_body.max_tx_power = 0xbf;
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal join req bssid %pM self_sta_mac_addr %pM channel %d link_state %d\n",
+		    msg_body.bssid, msg_body.self_sta_mac_addr,
+		    msg_body.channel, msg_body.link_state);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_join failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_join_rsp(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_join response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_set_link_st(struct wcn36xx *wcn, const u8 *bssid,
+			    const u8 *sta_mac,
+			    enum wcn36xx_hal_link_state state)
+{
+	struct wcn36xx_hal_set_link_state_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_SET_LINK_ST_REQ);
+
+	memcpy(&msg_body.bssid, bssid, ETH_ALEN);
+	memcpy(&msg_body.self_mac_addr, sta_mac, ETH_ALEN);
+	msg_body.state = state;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal set link state bssid %pM self_mac_addr %pM state %d\n",
+		    msg_body.bssid, msg_body.self_mac_addr, msg_body.state);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_set_link_st failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_set_link_st response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+static void wcn36xx_smd_convert_sta_to_v1(struct wcn36xx *wcn,
+			const struct wcn36xx_hal_config_sta_params *orig,
+			struct wcn36xx_hal_config_sta_params_v1 *v1)
+{
+	/* convert orig to v1 format */
+	memcpy(&v1->bssid, orig->bssid, ETH_ALEN);
+	memcpy(&v1->mac, orig->mac, ETH_ALEN);
+	v1->aid = orig->aid;
+	v1->type = orig->type;
+	v1->listen_interval = orig->listen_interval;
+	v1->ht_capable = orig->ht_capable;
+
+	v1->max_ampdu_size = orig->max_ampdu_size;
+	v1->max_ampdu_density = orig->max_ampdu_density;
+	v1->sgi_40mhz = orig->sgi_40mhz;
+	v1->sgi_20Mhz = orig->sgi_20Mhz;
+
+	memcpy(&v1->supported_rates, &orig->supported_rates,
+	       sizeof(orig->supported_rates));
+	v1->sta_index = orig->sta_index;
+}
+
+static int wcn36xx_smd_config_sta_rsp(struct wcn36xx *wcn,
+				      struct ieee80211_sta *sta,
+				      void *buf,
+				      size_t len)
+{
+	struct wcn36xx_hal_config_sta_rsp_msg *rsp;
+	struct config_sta_rsp_params *params;
+	struct wcn36xx_sta *sta_priv = (struct wcn36xx_sta *)sta->drv_priv;
+
+	if (len < sizeof(*rsp))
+		return -EINVAL;
+
+	rsp = (struct wcn36xx_hal_config_sta_rsp_msg *)buf;
+	params = &rsp->params;
+
+	if (params->status != WCN36XX_FW_MSG_RESULT_SUCCESS) {
+		wcn36xx_warn("hal config sta response failure: %d\n",
+			     params->status);
+		return -EIO;
+	}
+
+	sta_priv->sta_index = params->sta_index;
+	sta_priv->dpu_desc_index = params->dpu_index;
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal config sta rsp status %d sta_index %d bssid_index %d p2p %d\n",
+		    params->status, params->sta_index, params->bssid_index,
+		    params->p2p);
+
+	return 0;
+}
+
+static int wcn36xx_smd_config_sta_v1(struct wcn36xx *wcn,
+		     const struct wcn36xx_hal_config_sta_req_msg *orig)
+{
+	struct wcn36xx_hal_config_sta_req_msg_v1 msg_body;
+	struct wcn36xx_hal_config_sta_params_v1 *sta = &msg_body.sta_params;
+
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_CONFIG_STA_REQ);
+
+	wcn36xx_smd_convert_sta_to_v1(wcn, &orig->sta_params,
+				      &msg_body.sta_params);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal config sta v1 action %d sta_index %d bssid_index %d bssid %pM type %d mac %pM aid %d\n",
+		    sta->action, sta->sta_index, sta->bssid_index,
+		    sta->bssid, sta->type, sta->mac, sta->aid);
+
+	return wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+}
+
+int wcn36xx_smd_config_sta(struct wcn36xx *wcn, struct ieee80211_vif *vif,
+			   struct ieee80211_sta *sta)
+{
+	struct wcn36xx_hal_config_sta_req_msg msg;
+	struct wcn36xx_hal_config_sta_params *sta_params;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg, WCN36XX_HAL_CONFIG_STA_REQ);
+
+	sta_params = &msg.sta_params;
+
+	wcn36xx_smd_set_sta_params(wcn, vif, sta, sta_params);
+
+	if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
+		ret = wcn36xx_smd_config_sta_v1(wcn, &msg);
+	} else {
+		PREPARE_HAL_BUF(wcn->hal_buf, msg);
+
+		wcn36xx_dbg(WCN36XX_DBG_HAL,
+			    "hal config sta action %d sta_index %d bssid_index %d bssid %pM type %d mac %pM aid %d\n",
+			    sta_params->action, sta_params->sta_index,
+			    sta_params->bssid_index, sta_params->bssid,
+			    sta_params->type, sta_params->mac, sta_params->aid);
+
+		ret = wcn36xx_smd_send_and_wait(wcn, msg.header.len);
+	}
+	if (ret) {
+		wcn36xx_err("Sending hal_config_sta failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_config_sta_rsp(wcn,
+					 sta,
+					 wcn->hal_buf,
+					 wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_config_sta response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+static int wcn36xx_smd_config_bss_v1(struct wcn36xx *wcn,
+			const struct wcn36xx_hal_config_bss_req_msg *orig)
+{
+	struct wcn36xx_hal_config_bss_req_msg_v1 msg_body;
+	struct wcn36xx_hal_config_bss_params_v1 *bss = &msg_body.bss_params;
+	struct wcn36xx_hal_config_sta_params_v1 *sta = &bss->sta;
+
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_CONFIG_BSS_REQ);
+
+	/* convert orig to v1 */
+	memcpy(&msg_body.bss_params.bssid,
+	       &orig->bss_params.bssid, ETH_ALEN);
+	memcpy(&msg_body.bss_params.self_mac_addr,
+	       &orig->bss_params.self_mac_addr, ETH_ALEN);
+
+	msg_body.bss_params.bss_type = orig->bss_params.bss_type;
+	msg_body.bss_params.oper_mode = orig->bss_params.oper_mode;
+	msg_body.bss_params.nw_type = orig->bss_params.nw_type;
+
+	msg_body.bss_params.short_slot_time_supported =
+		orig->bss_params.short_slot_time_supported;
+	msg_body.bss_params.lla_coexist = orig->bss_params.lla_coexist;
+	msg_body.bss_params.llb_coexist = orig->bss_params.llb_coexist;
+	msg_body.bss_params.llg_coexist = orig->bss_params.llg_coexist;
+	msg_body.bss_params.ht20_coexist = orig->bss_params.ht20_coexist;
+	msg_body.bss_params.lln_non_gf_coexist =
+		orig->bss_params.lln_non_gf_coexist;
+
+	msg_body.bss_params.lsig_tx_op_protection_full_support =
+		orig->bss_params.lsig_tx_op_protection_full_support;
+	msg_body.bss_params.rifs_mode = orig->bss_params.rifs_mode;
+	msg_body.bss_params.beacon_interval = orig->bss_params.beacon_interval;
+	msg_body.bss_params.dtim_period = orig->bss_params.dtim_period;
+	msg_body.bss_params.tx_channel_width_set =
+		orig->bss_params.tx_channel_width_set;
+	msg_body.bss_params.oper_channel = orig->bss_params.oper_channel;
+	msg_body.bss_params.ext_channel = orig->bss_params.ext_channel;
+
+	msg_body.bss_params.reserved = orig->bss_params.reserved;
+
+	memcpy(&msg_body.bss_params.ssid,
+	       &orig->bss_params.ssid,
+	       sizeof(orig->bss_params.ssid));
+
+	msg_body.bss_params.action = orig->bss_params.action;
+	msg_body.bss_params.rateset = orig->bss_params.rateset;
+	msg_body.bss_params.ht = orig->bss_params.ht;
+	msg_body.bss_params.obss_prot_enabled =
+		orig->bss_params.obss_prot_enabled;
+	msg_body.bss_params.rmf = orig->bss_params.rmf;
+	msg_body.bss_params.ht_oper_mode = orig->bss_params.ht_oper_mode;
+	msg_body.bss_params.dual_cts_protection =
+		orig->bss_params.dual_cts_protection;
+
+	msg_body.bss_params.max_probe_resp_retry_limit =
+		orig->bss_params.max_probe_resp_retry_limit;
+	msg_body.bss_params.hidden_ssid = orig->bss_params.hidden_ssid;
+	msg_body.bss_params.proxy_probe_resp =
+		orig->bss_params.proxy_probe_resp;
+	msg_body.bss_params.edca_params_valid =
+		orig->bss_params.edca_params_valid;
+
+	memcpy(&msg_body.bss_params.acbe,
+	       &orig->bss_params.acbe,
+	       sizeof(orig->bss_params.acbe));
+	memcpy(&msg_body.bss_params.acbk,
+	       &orig->bss_params.acbk,
+	       sizeof(orig->bss_params.acbk));
+	memcpy(&msg_body.bss_params.acvi,
+	       &orig->bss_params.acvi,
+	       sizeof(orig->bss_params.acvi));
+	memcpy(&msg_body.bss_params.acvo,
+	       &orig->bss_params.acvo,
+	       sizeof(orig->bss_params.acvo));
+
+	msg_body.bss_params.ext_set_sta_key_param_valid =
+		orig->bss_params.ext_set_sta_key_param_valid;
+
+	memcpy(&msg_body.bss_params.ext_set_sta_key_param,
+	       &orig->bss_params.ext_set_sta_key_param,
+	       sizeof(orig->bss_params.acvo));
+
+	msg_body.bss_params.wcn36xx_hal_persona =
+		orig->bss_params.wcn36xx_hal_persona;
+	msg_body.bss_params.spectrum_mgt_enable =
+		orig->bss_params.spectrum_mgt_enable;
+	msg_body.bss_params.tx_mgmt_power = orig->bss_params.tx_mgmt_power;
+	msg_body.bss_params.max_tx_power = orig->bss_params.max_tx_power;
+
+	wcn36xx_smd_convert_sta_to_v1(wcn, &orig->bss_params.sta,
+				      &msg_body.bss_params.sta);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal config bss v1 bssid %pM self_mac_addr %pM bss_type %d oper_mode %d nw_type %d\n",
+		    bss->bssid, bss->self_mac_addr, bss->bss_type,
+		    bss->oper_mode, bss->nw_type);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "- sta bssid %pM action %d sta_index %d bssid_index %d aid %d type %d mac %pM\n",
+		    sta->bssid, sta->action, sta->sta_index,
+		    sta->bssid_index, sta->aid, sta->type, sta->mac);
+
+	return wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+}
+
+
+static int wcn36xx_smd_config_bss_rsp(struct wcn36xx *wcn,
+				      struct ieee80211_vif *vif,
+				      void *buf,
+				      size_t len)
+{
+	struct wcn36xx_hal_config_bss_rsp_msg *rsp;
+	struct wcn36xx_hal_config_bss_rsp_params *params;
+	struct wcn36xx_vif *priv_vif = (struct wcn36xx_vif *)vif->drv_priv;
+
+	if (len < sizeof(*rsp))
+		return -EINVAL;
+
+	rsp = (struct wcn36xx_hal_config_bss_rsp_msg *)buf;
+	params = &rsp->bss_rsp_params;
+
+	if (params->status != WCN36XX_FW_MSG_RESULT_SUCCESS) {
+		wcn36xx_warn("hal config bss response failure: %d\n",
+			     params->status);
+		return -EIO;
+	}
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal config bss rsp status %d bss_idx %d dpu_desc_index %d"
+		    " sta_idx %d self_idx %d bcast_idx %d mac %pM"
+		    " power %d ucast_dpu_signature %d\n",
+		    params->status, params->bss_index, params->dpu_desc_index,
+		    params->bss_sta_index, params->bss_self_sta_index,
+		    params->bss_bcast_sta_idx, params->mac,
+		    params->tx_mgmt_power, params->ucast_dpu_signature);
+
+	priv_vif->bss_index = params->bss_index;
+
+	if (priv_vif->sta) {
+		priv_vif->sta->bss_sta_index =  params->bss_sta_index;
+		priv_vif->sta->bss_dpu_desc_index = params->dpu_desc_index;
+	}
+
+	priv_vif->ucast_dpu_signature = params->ucast_dpu_signature;
+
+	return 0;
+}
+
+int wcn36xx_smd_config_bss(struct wcn36xx *wcn, struct ieee80211_vif *vif,
+			   struct ieee80211_sta *sta, const u8 *bssid,
+			   bool update)
+{
+	struct wcn36xx_hal_config_bss_req_msg msg;
+	struct wcn36xx_hal_config_bss_params *bss;
+	struct wcn36xx_hal_config_sta_params *sta_params;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg, WCN36XX_HAL_CONFIG_BSS_REQ);
+
+	bss = &msg.bss_params;
+	sta_params = &bss->sta;
+
+	WARN_ON(is_zero_ether_addr(bssid));
+
+	memcpy(&bss->bssid, bssid, ETH_ALEN);
+
+	memcpy(bss->self_mac_addr, vif->addr, ETH_ALEN);
+
+	if (vif->type == NL80211_IFTYPE_STATION) {
+		bss->bss_type = WCN36XX_HAL_INFRASTRUCTURE_MODE;
+
+		/* STA */
+		bss->oper_mode = 1;
+		bss->wcn36xx_hal_persona = WCN36XX_HAL_STA_MODE;
+	} else if (vif->type == NL80211_IFTYPE_AP) {
+		bss->bss_type = WCN36XX_HAL_INFRA_AP_MODE;
+
+		/* AP */
+		bss->oper_mode = 0;
+		bss->wcn36xx_hal_persona = WCN36XX_HAL_STA_SAP_MODE;
+	} else if (vif->type == NL80211_IFTYPE_ADHOC ||
+		   vif->type == NL80211_IFTYPE_MESH_POINT) {
+		bss->bss_type = WCN36XX_HAL_IBSS_MODE;
+
+		/* STA */
+		bss->oper_mode = 1;
+	} else {
+		wcn36xx_warn("Unknown type for bss config: %d\n", vif->type);
+	}
+
+	if (vif->type == NL80211_IFTYPE_STATION)
+		wcn36xx_smd_set_bss_nw_type(wcn, sta, bss);
+	else
+		bss->nw_type = WCN36XX_HAL_11N_NW_TYPE;
+
+	bss->short_slot_time_supported = vif->bss_conf.use_short_slot;
+	bss->lla_coexist = 0;
+	bss->llb_coexist = 0;
+	bss->llg_coexist = 0;
+	bss->rifs_mode = 0;
+	bss->beacon_interval = vif->bss_conf.beacon_int;
+	bss->dtim_period = vif_priv->dtim_period;
+
+	wcn36xx_smd_set_bss_ht_params(vif, sta, bss);
+
+	bss->oper_channel = WCN36XX_HW_CHANNEL(wcn);
+
+	if (conf_is_ht40_minus(&wcn->hw->conf))
+		bss->ext_channel = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
+	else if (conf_is_ht40_plus(&wcn->hw->conf))
+		bss->ext_channel = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
+	else
+		bss->ext_channel = IEEE80211_HT_PARAM_CHA_SEC_NONE;
+
+	bss->reserved = 0;
+	wcn36xx_smd_set_sta_params(wcn, vif, sta, sta_params);
+
+	/* wcn->ssid is only valid in AP and IBSS mode */
+	bss->ssid.length = vif_priv->ssid.length;
+	memcpy(bss->ssid.ssid, vif_priv->ssid.ssid, vif_priv->ssid.length);
+
+	bss->obss_prot_enabled = 0;
+	bss->rmf = 0;
+	bss->max_probe_resp_retry_limit = 0;
+	bss->hidden_ssid = vif->bss_conf.hidden_ssid;
+	bss->proxy_probe_resp = 0;
+	bss->edca_params_valid = 0;
+
+	/* FIXME: set acbe, acbk, acvi and acvo */
+
+	bss->ext_set_sta_key_param_valid = 0;
+
+	/* FIXME: set ext_set_sta_key_param */
+
+	bss->spectrum_mgt_enable = 0;
+	bss->tx_mgmt_power = 0;
+	bss->max_tx_power = WCN36XX_MAX_POWER(wcn);
+
+	bss->action = update;
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal config bss bssid %pM self_mac_addr %pM bss_type %d oper_mode %d nw_type %d\n",
+		    bss->bssid, bss->self_mac_addr, bss->bss_type,
+		    bss->oper_mode, bss->nw_type);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "- sta bssid %pM action %d sta_index %d bssid_index %d aid %d type %d mac %pM\n",
+		    sta_params->bssid, sta_params->action,
+		    sta_params->sta_index, sta_params->bssid_index,
+		    sta_params->aid, sta_params->type,
+		    sta_params->mac);
+
+	if (!wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
+		ret = wcn36xx_smd_config_bss_v1(wcn, &msg);
+	} else {
+		PREPARE_HAL_BUF(wcn->hal_buf, msg);
+
+		ret = wcn36xx_smd_send_and_wait(wcn, msg.header.len);
+	}
+	if (ret) {
+		wcn36xx_err("Sending hal_config_bss failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_config_bss_rsp(wcn,
+					 vif,
+					 wcn->hal_buf,
+					 wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_config_bss response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_delete_bss(struct wcn36xx *wcn, struct ieee80211_vif *vif)
+{
+	struct wcn36xx_hal_delete_bss_req_msg msg_body;
+	struct wcn36xx_vif *priv_vif = (struct wcn36xx_vif *)vif->drv_priv;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_DELETE_BSS_REQ);
+
+	msg_body.bss_index = priv_vif->bss_index;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL, "hal delete bss %d\n", msg_body.bss_index);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_delete_bss failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_delete_bss response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_send_beacon(struct wcn36xx *wcn, struct ieee80211_vif *vif,
+			    struct sk_buff *skb_beacon, u16 tim_off,
+			    u16 p2p_off)
+{
+	struct wcn36xx_hal_send_beacon_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_SEND_BEACON_REQ);
+
+	/* TODO need to find out why this is needed? */
+	msg_body.beacon_length = skb_beacon->len + 6;
+
+	if (BEACON_TEMPLATE_SIZE > msg_body.beacon_length) {
+		memcpy(&msg_body.beacon, &skb_beacon->len, sizeof(u32));
+		memcpy(&(msg_body.beacon[4]), skb_beacon->data,
+		       skb_beacon->len);
+	} else {
+		wcn36xx_err("Beacon is to big: beacon size=%d\n",
+			      msg_body.beacon_length);
+		return -ENOMEM;
+	}
+	memcpy(msg_body.bssid, vif->addr, ETH_ALEN);
+
+	/* TODO need to find out why this is needed? */
+	msg_body.tim_ie_offset = tim_off+4;
+	msg_body.p2p_ie_offset = p2p_off;
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal send beacon beacon_length %d\n",
+		    msg_body.beacon_length);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_send_beacon failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_send_beacon response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_update_proberesp_tmpl(struct wcn36xx *wcn,
+				      struct ieee80211_vif *vif,
+				      struct sk_buff *skb)
+{
+	struct wcn36xx_hal_send_probe_resp_req_msg msg;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg, WCN36XX_HAL_UPDATE_PROBE_RSP_TEMPLATE_REQ);
+
+	if (skb->len > BEACON_TEMPLATE_SIZE) {
+		wcn36xx_warn("probe response template is too big: %d\n",
+			     skb->len);
+		return -E2BIG;
+	}
+
+	msg.probe_resp_template_len = skb->len;
+	memcpy(&msg.probe_resp_template, skb->data, skb->len);
+
+	memcpy(msg.bssid, vif->addr, ETH_ALEN);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg);
+
+	wcn36xx_dbg(WCN36XX_DBG_HAL,
+		    "hal update probe rsp len %d bssid %pM\n",
+		    msg.probe_resp_template_len, msg.bssid);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_update_proberesp_tmpl failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_update_proberesp_tmpl response failed err=%d\n",
+			    ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_set_stakey(struct wcn36xx *wcn,
+			   enum ani_ed_type enc_type,
+			   u8 keyidx,
+			   u8 keylen,
+			   u8 *key,
+			   u8 sta_index)
+{
+	struct wcn36xx_hal_set_sta_key_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_SET_STAKEY_REQ);
+
+	msg_body.set_sta_key_params.sta_index = sta_index;
+	msg_body.set_sta_key_params.enc_type = enc_type;
+
+	msg_body.set_sta_key_params.key[0].id = keyidx;
+	msg_body.set_sta_key_params.key[0].unicast = 1;
+	msg_body.set_sta_key_params.key[0].direction = WCN36XX_HAL_TX_RX;
+	msg_body.set_sta_key_params.key[0].pae_role = 0;
+	msg_body.set_sta_key_params.key[0].length = keylen;
+	memcpy(msg_body.set_sta_key_params.key[0].key, key, keylen);
+	msg_body.set_sta_key_params.single_tid_rc = 1;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_set_stakey failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_set_stakey response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_set_bsskey(struct wcn36xx *wcn,
+			   enum ani_ed_type enc_type,
+			   u8 keyidx,
+			   u8 keylen,
+			   u8 *key)
+{
+	struct wcn36xx_hal_set_bss_key_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_SET_BSSKEY_REQ);
+	msg_body.bss_idx = 0;
+	msg_body.enc_type = enc_type;
+	msg_body.num_keys = 1;
+	msg_body.keys[0].id = keyidx;
+	msg_body.keys[0].unicast = 0;
+	msg_body.keys[0].direction = WCN36XX_HAL_RX_ONLY;
+	msg_body.keys[0].pae_role = 0;
+	msg_body.keys[0].length = keylen;
+	memcpy(msg_body.keys[0].key, key, keylen);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_set_bsskey failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_set_bsskey response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_remove_stakey(struct wcn36xx *wcn,
+			      enum ani_ed_type enc_type,
+			      u8 keyidx,
+			      u8 sta_index)
+{
+	struct wcn36xx_hal_remove_sta_key_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_RMV_STAKEY_REQ);
+
+	msg_body.sta_idx = sta_index;
+	msg_body.enc_type = enc_type;
+	msg_body.key_id = keyidx;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_remove_stakey failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_remove_stakey response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_remove_bsskey(struct wcn36xx *wcn,
+			      enum ani_ed_type enc_type,
+			      u8 keyidx)
+{
+	struct wcn36xx_hal_remove_bss_key_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_RMV_BSSKEY_REQ);
+	msg_body.bss_idx = 0;
+	msg_body.enc_type = enc_type;
+	msg_body.key_id = keyidx;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_remove_bsskey failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_remove_bsskey response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_enter_bmps(struct wcn36xx *wcn, struct ieee80211_vif *vif)
+{
+	struct wcn36xx_hal_enter_bmps_req_msg msg_body;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_ENTER_BMPS_REQ);
+
+	msg_body.bss_index = vif_priv->bss_index;
+	msg_body.tbtt = vif->bss_conf.sync_tsf;
+	msg_body.dtim_period = vif_priv->dtim_period;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_enter_bmps failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_enter_bmps response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_exit_bmps(struct wcn36xx *wcn, struct ieee80211_vif *vif)
+{
+	struct wcn36xx_hal_enter_bmps_req_msg msg_body;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_EXIT_BMPS_REQ);
+
+	msg_body.bss_index = vif_priv->bss_index;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_exit_bmps failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_exit_bmps response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+int wcn36xx_smd_set_power_params(struct wcn36xx *wcn, bool ignore_dtim)
+{
+	struct wcn36xx_hal_set_power_params_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_SET_POWER_PARAMS_REQ);
+
+	/*
+	 * When host is down ignore every second dtim
+	 */
+	if (ignore_dtim) {
+		msg_body.ignore_dtim = 1;
+		msg_body.dtim_period = 2;
+	}
+	msg_body.listen_interval = WCN36XX_LISTEN_INTERVAL(wcn);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_set_power_params failed\n");
+		goto out;
+	}
+
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+/* Notice: This function should be called after associated, or else it
+ * will be invalid
+ */
+int wcn36xx_smd_keep_alive_req(struct wcn36xx *wcn,
+			       struct ieee80211_vif *vif,
+			       int packet_type)
+{
+	struct wcn36xx_hal_keep_alive_req_msg msg_body;
+	struct wcn36xx_vif *vif_priv = (struct wcn36xx_vif *)vif->drv_priv;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_KEEP_ALIVE_REQ);
+
+	if (packet_type == WCN36XX_HAL_KEEP_ALIVE_NULL_PKT) {
+		msg_body.bss_index = vif_priv->bss_index;
+		msg_body.packet_type = WCN36XX_HAL_KEEP_ALIVE_NULL_PKT;
+		msg_body.time_period = WCN36XX_KEEP_ALIVE_TIME_PERIOD;
+	} else if (packet_type == WCN36XX_HAL_KEEP_ALIVE_UNSOLICIT_ARP_RSP) {
+		/* TODO: it also support ARP response type */
+	} else {
+		wcn36xx_warn("unknow keep alive packet type %d\n", packet_type);
+		return -EINVAL;
+	}
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_exit_bmps failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_exit_bmps response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_dump_cmd_req(struct wcn36xx *wcn, u32 arg1, u32 arg2,
+			     u32 arg3, u32 arg4, u32 arg5)
+{
+	struct wcn36xx_hal_dump_cmd_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_DUMP_COMMAND_REQ);
+
+	msg_body.arg1 = arg1;
+	msg_body.arg2 = arg2;
+	msg_body.arg3 = arg3;
+	msg_body.arg4 = arg4;
+	msg_body.arg5 = arg5;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_dump_cmd failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_dump_cmd response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+static inline void set_feat_caps(u32 *bitmap,
+				 enum place_holder_in_cap_bitmap cap)
+{
+	int arr_idx, bit_idx;
+
+	if (cap < 0 || cap > 127) {
+		wcn36xx_warn("error cap idx %d\n", cap);
+		return;
+	}
+
+	arr_idx = cap / 32;
+	bit_idx = cap % 32;
+	bitmap[arr_idx] |= (1 << bit_idx);
+}
+
+static inline int get_feat_caps(u32 *bitmap,
+				enum place_holder_in_cap_bitmap cap)
+{
+	int arr_idx, bit_idx;
+	int ret = 0;
+
+	if (cap < 0 || cap > 127) {
+		wcn36xx_warn("error cap idx %d\n", cap);
+		return -EINVAL;
+	}
+
+	arr_idx = cap / 32;
+	bit_idx = cap % 32;
+	ret = (bitmap[arr_idx] & (1 << bit_idx)) ? 1 : 0;
+	return ret;
+}
+
+static inline void clear_feat_caps(u32 *bitmap,
+				enum place_holder_in_cap_bitmap cap)
+{
+	int arr_idx, bit_idx;
+
+	if (cap < 0 || cap > 127) {
+		wcn36xx_warn("error cap idx %d\n", cap);
+		return;
+	}
+
+	arr_idx = cap / 32;
+	bit_idx = cap % 32;
+	bitmap[arr_idx] &= ~(1 << bit_idx);
+}
+
+int wcn36xx_smd_feature_caps_exchange(struct wcn36xx *wcn)
+{
+	struct wcn36xx_hal_feat_caps_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_FEATURE_CAPS_EXCHANGE_REQ);
+
+	set_feat_caps(msg_body.feat_caps, STA_POWERSAVE);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_feature_caps_exchange failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_feature_caps_exchange response failed err=%d\n",
+			    ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_add_ba_session(struct wcn36xx *wcn,
+		struct ieee80211_sta *sta,
+		u16 tid,
+		u16 *ssn,
+		u8 direction,
+		u8 sta_index)
+{
+	struct wcn36xx_hal_add_ba_session_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_ADD_BA_SESSION_REQ);
+
+	msg_body.sta_index = sta_index;
+	memcpy(&msg_body.mac_addr, sta->addr, ETH_ALEN);
+	msg_body.dialog_token = 0x10;
+	msg_body.tid = tid;
+
+	/* Immediate BA because Delayed BA is not supported */
+	msg_body.policy = 1;
+	msg_body.buffer_size = WCN36XX_AGGR_BUFFER_SIZE;
+	msg_body.timeout = 0;
+	if (ssn)
+		msg_body.ssn = *ssn;
+	msg_body.direction = direction;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_add_ba_session failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_add_ba_session response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_add_ba(struct wcn36xx *wcn)
+{
+	struct wcn36xx_hal_add_ba_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_ADD_BA_REQ);
+
+	msg_body.session_id = 0;
+	msg_body.win_size = WCN36XX_AGGR_BUFFER_SIZE;
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_add_ba failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_add_ba response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_del_ba(struct wcn36xx *wcn, u16 tid, u8 sta_index)
+{
+	struct wcn36xx_hal_del_ba_req_msg msg_body;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_DEL_BA_REQ);
+
+	msg_body.sta_index = sta_index;
+	msg_body.tid = tid;
+	msg_body.direction = 0;
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_del_ba failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_del_ba response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+int wcn36xx_smd_trigger_ba(struct wcn36xx *wcn, u8 sta_index)
+{
+	struct wcn36xx_hal_trigger_ba_req_msg msg_body;
+	struct wcn36xx_hal_trigget_ba_req_candidate *candidate;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_TRIGGER_BA_REQ);
+
+	msg_body.session_id = 0;
+	msg_body.candidate_cnt = 1;
+	msg_body.header.len += sizeof(*candidate);
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	candidate = (struct wcn36xx_hal_trigget_ba_req_candidate *)
+		(wcn->hal_buf + sizeof(msg_body));
+	candidate->sta_index = sta_index;
+	candidate->tid_bitmap = 1;
+
+	ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_trigger_ba failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_trigger_ba response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+
+static int wcn36xx_smd_tx_compl_ind(struct wcn36xx *wcn, void *buf, size_t len)
+{
+	struct wcn36xx_hal_tx_compl_ind_msg *rsp = buf;
+
+	if (len != sizeof(*rsp)) {
+		wcn36xx_warn("Bad TX complete indication\n");
+		return -EIO;
+	}
+
+	wcn36xx_dxe_tx_ack_ind(wcn, rsp->status);
+
+	return 0;
+}
+
+static int wcn36xx_smd_missed_beacon_ind(struct wcn36xx *wcn,
+					 void *buf,
+					 size_t len)
+{
+	struct wcn36xx_hal_missed_beacon_ind_msg *rsp = buf;
+	struct ieee80211_vif *vif = NULL;
+	struct wcn36xx_vif *tmp;
+
+	/* Old FW does not have bss index */
+	if (wcn36xx_is_fw_version(wcn, 1, 2, 2, 24)) {
+		list_for_each_entry(tmp, &wcn->vif_list, list) {
+			wcn36xx_dbg(WCN36XX_DBG_HAL, "beacon missed bss_index %d\n",
+				    tmp->bss_index);
+			vif = container_of((void *)tmp,
+						 struct ieee80211_vif,
+						 drv_priv);
+			ieee80211_connection_loss(vif);
+		}
+		return 0;
+	}
+
+	if (len != sizeof(*rsp)) {
+		wcn36xx_warn("Corrupted missed beacon indication\n");
+		return -EIO;
+	}
+
+	list_for_each_entry(tmp, &wcn->vif_list, list) {
+		if (tmp->bss_index == rsp->bss_index) {
+			wcn36xx_dbg(WCN36XX_DBG_HAL, "beacon missed bss_index %d\n",
+				    rsp->bss_index);
+			vif = container_of((void *)tmp,
+						 struct ieee80211_vif,
+						 drv_priv);
+			ieee80211_connection_loss(vif);
+			return 0;
+		}
+	}
+
+	wcn36xx_warn("BSS index %d not found\n", rsp->bss_index);
+	return -ENOENT;
+}
+
+static int wcn36xx_smd_delete_sta_context_ind(struct wcn36xx *wcn,
+					      void *buf,
+					      size_t len)
+{
+	struct wcn36xx_hal_delete_sta_context_ind_msg *rsp = buf;
+	struct wcn36xx_vif *tmp;
+	struct ieee80211_sta *sta = NULL;
+
+	if (len != sizeof(*rsp)) {
+		wcn36xx_warn("Corrupted delete sta indication\n");
+		return -EIO;
+	}
+
+	list_for_each_entry(tmp, &wcn->vif_list, list) {
+		if (sta && (tmp->sta->sta_index == rsp->sta_id)) {
+			sta = container_of((void *)tmp->sta,
+						 struct ieee80211_sta,
+						 drv_priv);
+			wcn36xx_dbg(WCN36XX_DBG_HAL,
+				    "delete station indication %pM index %d\n",
+				    rsp->addr2,
+				    rsp->sta_id);
+			ieee80211_report_low_ack(sta, 0);
+			return 0;
+		}
+	}
+
+	wcn36xx_warn("STA with addr %pM and index %d not found\n",
+		     rsp->addr2,
+		     rsp->sta_id);
+	return -ENOENT;
+}
+
+int wcn36xx_smd_update_cfg(struct wcn36xx *wcn, u32 cfg_id, u32 value)
+{
+	struct wcn36xx_hal_update_cfg_req_msg msg_body, *body;
+	size_t len;
+	int ret = 0;
+
+	mutex_lock(&wcn->hal_mutex);
+	INIT_HAL_MSG(msg_body, WCN36XX_HAL_UPDATE_CFG_REQ);
+
+	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
+
+	body = (struct wcn36xx_hal_update_cfg_req_msg *) wcn->hal_buf;
+	len = msg_body.header.len;
+
+	put_cfg_tlv_u32(wcn, &len, cfg_id, value);
+	body->header.len = len;
+	body->len = len - sizeof(*body);
+
+	ret = wcn36xx_smd_send_and_wait(wcn, body->header.len);
+	if (ret) {
+		wcn36xx_err("Sending hal_update_cfg failed\n");
+		goto out;
+	}
+	ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len);
+	if (ret) {
+		wcn36xx_err("hal_update_cfg response failed err=%d\n", ret);
+		goto out;
+	}
+out:
+	mutex_unlock(&wcn->hal_mutex);
+	return ret;
+}
+static void wcn36xx_smd_rsp_process(struct wcn36xx *wcn, void *buf, size_t len)
+{
+	struct wcn36xx_hal_msg_header *msg_header = buf;
+	struct wcn36xx_hal_ind_msg *msg_ind;
+	wcn36xx_dbg_dump(WCN36XX_DBG_SMD_DUMP, "SMD <<< ", buf, len);
+
+	switch (msg_header->msg_type) {
+	case WCN36XX_HAL_START_RSP:
+	case WCN36XX_HAL_CONFIG_STA_RSP:
+	case WCN36XX_HAL_CONFIG_BSS_RSP:
+	case WCN36XX_HAL_ADD_STA_SELF_RSP:
+	case WCN36XX_HAL_STOP_RSP:
+	case WCN36XX_HAL_DEL_STA_SELF_RSP:
+	case WCN36XX_HAL_DELETE_STA_RSP:
+	case WCN36XX_HAL_INIT_SCAN_RSP:
+	case WCN36XX_HAL_START_SCAN_RSP:
+	case WCN36XX_HAL_END_SCAN_RSP:
+	case WCN36XX_HAL_FINISH_SCAN_RSP:
+	case WCN36XX_HAL_DOWNLOAD_NV_RSP:
+	case WCN36XX_HAL_DELETE_BSS_RSP:
+	case WCN36XX_HAL_SEND_BEACON_RSP:
+	case WCN36XX_HAL_SET_LINK_ST_RSP:
+	case WCN36XX_HAL_UPDATE_PROBE_RSP_TEMPLATE_RSP:
+	case WCN36XX_HAL_SET_BSSKEY_RSP:
+	case WCN36XX_HAL_SET_STAKEY_RSP:
+	case WCN36XX_HAL_RMV_STAKEY_RSP:
+	case WCN36XX_HAL_RMV_BSSKEY_RSP:
+	case WCN36XX_HAL_ENTER_BMPS_RSP:
+	case WCN36XX_HAL_SET_POWER_PARAMS_RSP:
+	case WCN36XX_HAL_EXIT_BMPS_RSP:
+	case WCN36XX_HAL_KEEP_ALIVE_RSP:
+	case WCN36XX_HAL_DUMP_COMMAND_RSP:
+	case WCN36XX_HAL_ADD_BA_SESSION_RSP:
+	case WCN36XX_HAL_ADD_BA_RSP:
+	case WCN36XX_HAL_DEL_BA_RSP:
+	case WCN36XX_HAL_TRIGGER_BA_RSP:
+	case WCN36XX_HAL_UPDATE_CFG_RSP:
+	case WCN36XX_HAL_JOIN_RSP:
+	case WCN36XX_HAL_UPDATE_SCAN_PARAM_RSP:
+	case WCN36XX_HAL_CH_SWITCH_RSP:
+	case WCN36XX_HAL_FEATURE_CAPS_EXCHANGE_RSP:
+		memcpy(wcn->hal_buf, buf, len);
+		wcn->hal_rsp_len = len;
+		complete(&wcn->hal_rsp_compl);
+		break;
+
+	case WCN36XX_HAL_OTA_TX_COMPL_IND:
+	case WCN36XX_HAL_MISSED_BEACON_IND:
+	case WCN36XX_HAL_DELETE_STA_CONTEXT_IND:
+		mutex_lock(&wcn->hal_ind_mutex);
+		msg_ind = kmalloc(sizeof(*msg_ind), GFP_KERNEL);
+		msg_ind->msg_len = len;
+		msg_ind->msg = kmalloc(len, GFP_KERNEL);
+		memcpy(msg_ind->msg, buf, len);
+		list_add_tail(&msg_ind->list, &wcn->hal_ind_queue);
+		queue_work(wcn->hal_ind_wq, &wcn->hal_ind_work);
+		wcn36xx_dbg(WCN36XX_DBG_HAL, "indication arrived\n");
+		mutex_unlock(&wcn->hal_ind_mutex);
+		break;
+	default:
+		wcn36xx_err("SMD_EVENT (%d) not supported\n",
+			      msg_header->msg_type);
+	}
+}
+static void wcn36xx_ind_smd_work(struct work_struct *work)
+{
+	struct wcn36xx *wcn =
+		container_of(work, struct wcn36xx, hal_ind_work);
+	struct wcn36xx_hal_msg_header *msg_header;
+	struct wcn36xx_hal_ind_msg *hal_ind_msg;
+
+	mutex_lock(&wcn->hal_ind_mutex);
+
+	hal_ind_msg = list_first_entry(&wcn->hal_ind_queue,
+				       struct wcn36xx_hal_ind_msg,
+				       list);
+
+	msg_header = (struct wcn36xx_hal_msg_header *)hal_ind_msg->msg;
+
+	switch (msg_header->msg_type) {
+	case WCN36XX_HAL_OTA_TX_COMPL_IND:
+		wcn36xx_smd_tx_compl_ind(wcn,
+					 hal_ind_msg->msg,
+					 hal_ind_msg->msg_len);
+		break;
+	case WCN36XX_HAL_MISSED_BEACON_IND:
+		wcn36xx_smd_missed_beacon_ind(wcn,
+					      hal_ind_msg->msg,
+					      hal_ind_msg->msg_len);
+		break;
+	case WCN36XX_HAL_DELETE_STA_CONTEXT_IND:
+		wcn36xx_smd_delete_sta_context_ind(wcn,
+						   hal_ind_msg->msg,
+						   hal_ind_msg->msg_len);
+		break;
+	default:
+		wcn36xx_err("SMD_EVENT (%d) not supported\n",
+			      msg_header->msg_type);
+	}
+	list_del(wcn->hal_ind_queue.next);
+	kfree(hal_ind_msg->msg);
+	kfree(hal_ind_msg);
+	mutex_unlock(&wcn->hal_ind_mutex);
+}
+int wcn36xx_smd_open(struct wcn36xx *wcn)
+{
+	int ret = 0;
+	wcn->hal_ind_wq = create_freezable_workqueue("wcn36xx_smd_ind");
+	if (!wcn->hal_ind_wq) {
+		wcn36xx_err("failed to allocate wq\n");
+		ret = -ENOMEM;
+		goto out;
+	}
+	INIT_WORK(&wcn->hal_ind_work, wcn36xx_ind_smd_work);
+	INIT_LIST_HEAD(&wcn->hal_ind_queue);
+	mutex_init(&wcn->hal_ind_mutex);
+
+	ret = wcn->ctrl_ops->open(wcn, wcn36xx_smd_rsp_process);
+	if (ret) {
+		wcn36xx_err("failed to open control channel\n");
+		goto free_wq;
+	}
+
+	return ret;
+
+free_wq:
+	destroy_workqueue(wcn->hal_ind_wq);
+out:
+	return ret;
+}
+
+void wcn36xx_smd_close(struct wcn36xx *wcn)
+{
+	wcn->ctrl_ops->close();
+	destroy_workqueue(wcn->hal_ind_wq);
+	mutex_destroy(&wcn->hal_ind_mutex);
+}
diff --git a/drivers/net/wireless/ath/wcn36xx/smd.h b/drivers/net/wireless/ath/wcn36xx/smd.h
new file mode 100644
index 000000000000..e7c39019c6f1
--- /dev/null
+++ b/drivers/net/wireless/ath/wcn36xx/smd.h
@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _SMD_H_
+#define _SMD_H_
+
+#include "wcn36xx.h"
+
+/* Max shared size is 4k but we take less.*/
+#define WCN36XX_NV_FRAGMENT_SIZE			3072
+
+#define WCN36XX_HAL_BUF_SIZE				4096
+
+#define HAL_MSG_TIMEOUT 200
+#define WCN36XX_SMSM_WLAN_TX_ENABLE			0x00000400
+#define WCN36XX_SMSM_WLAN_TX_RINGS_EMPTY		0x00000200
+/* The PNO version info be contained in the rsp msg */
+#define WCN36XX_FW_MSG_PNO_VERSION_MASK			0x8000
+
+enum wcn36xx_fw_msg_result {
+	WCN36XX_FW_MSG_RESULT_SUCCESS			= 0,
+	WCN36XX_FW_MSG_RESULT_SUCCESS_SYNC		= 1,
+
+	WCN36XX_FW_MSG_RESULT_MEM_FAIL			= 5,
+};
+
+/******************************/
+/* SMD requests and responses */
+/******************************/
+struct wcn36xx_fw_msg_status_rsp {
+	u32	status;
+} __packed;
+
+struct wcn36xx_hal_ind_msg {
+	struct list_head list;
+	u8 *msg;
+	size_t msg_len;
+};
+
+struct wcn36xx;
+
+int wcn36xx_smd_open(struct wcn36xx *wcn);
+void wcn36xx_smd_close(struct wcn36xx *wcn);
+
+int wcn36xx_smd_load_nv(struct wcn36xx *wcn);
+int wcn36xx_smd_start(struct wcn36xx *wcn);
+int wcn36xx_smd_stop(struct wcn36xx *wcn);
+int wcn36xx_smd_init_scan(struct wcn36xx *wcn, enum wcn36xx_hal_sys_mode mode);
+int wcn36xx_smd_start_scan(struct wcn36xx *wcn);
+int wcn36xx_smd_end_scan(struct wcn36xx *wcn);
+int wcn36xx_smd_finish_scan(struct wcn36xx *wcn,
+			    enum wcn36xx_hal_sys_mode mode);
+int wcn36xx_smd_update_scan_params(struct wcn36xx *wcn);
+int wcn36xx_smd_add_sta_self(struct wcn36xx *wcn, struct ieee80211_vif *vif);
+int wcn36xx_smd_delete_sta_self(struct wcn36xx *wcn, u8 *addr);
+int wcn36xx_smd_delete_sta(struct wcn36xx *wcn, u8 sta_index);
+int wcn36xx_smd_join(struct wcn36xx *wcn, const u8 *bssid, u8 *vif, u8 ch);
+int wcn36xx_smd_set_link_st(struct wcn36xx *wcn, const u8 *bssid,
+			    const u8 *sta_mac,
+			    enum wcn36xx_hal_link_state state);
+int wcn36xx_smd_config_bss(struct wcn36xx *wcn, struct ieee80211_vif *vif,
+			   struct ieee80211_sta *sta, const u8 *bssid,
+			   bool update);
+int wcn36xx_smd_delete_bss(struct wcn36xx *wcn, struct ieee80211_vif *vif);
+int wcn36xx_smd_config_sta(struct wcn36xx *wcn, struct ieee80211_vif *vif,
+			   struct ieee80211_sta *sta);
+int wcn36xx_smd_send_beacon(struct wcn36xx *wcn, struct ieee80211_vif *vif,
+			    struct sk_buff *skb_beacon, u16 tim_off,
+			    u16 p2p_off);
+int wcn36xx_smd_switch_channel(struct wcn36xx *wcn,
+			       struct ieee80211_vif *vif, int ch);
+int wcn36xx_smd_update_proberesp_tmpl(struct wcn36xx *wcn,
+				      struct ieee80211_vif *vif,
+				      struct sk_buff *skb);
+int wcn36xx_smd_set_stakey(struct wcn36xx *wcn,
+			   enum ani_ed_type enc_type,
+			   u8 keyidx,
+			   u8 keylen,
+			   u8 *key,
+			   u8 sta_index);
+int wcn36xx_smd_set_bsskey(struct wcn36xx *wcn,
+			   enum ani_ed_type enc_type,
+			   u8 keyidx,
+			   u8 keylen,
+			   u8 *key);
+int wcn36xx_smd_remove_stakey(struct wcn36xx *wcn,
+			      enum ani_ed_type enc_type,
+			      u8 keyidx,
+			      u8 sta_index);
+int wcn36xx_smd_remove_bsskey(struct wcn36xx *wcn,
+			      enum ani_ed_type enc_type,
+			      u8 keyidx);
+int wcn36xx_smd_enter_bmps(struct wcn36xx *wcn, struct ieee80211_vif *vif);
+int wcn36xx_smd_exit_bmps(struct wcn36xx *wcn, struct ieee80211_vif *vif);
+int wcn36xx_smd_set_power_params(struct wcn36xx *wcn, bool ignore_dtim);
+int wcn36xx_smd_keep_alive_req(struct wcn36xx *wcn,
+			       struct ieee80211_vif *vif,
+			       int packet_type);
+int wcn36xx_smd_dump_cmd_req(struct wcn36xx *wcn, u32 arg1, u32 arg2,
+			     u32 arg3, u32 arg4, u32 arg5);
+int wcn36xx_smd_feature_caps_exchange(struct wcn36xx *wcn);
+
+int wcn36xx_smd_add_ba_session(struct wcn36xx *wcn,
+		struct ieee80211_sta *sta,
+		u16 tid,
+		u16 *ssn,
+		u8 direction,
+		u8 sta_index);
+int wcn36xx_smd_add_ba(struct wcn36xx *wcn);
+int wcn36xx_smd_del_ba(struct wcn36xx *wcn, u16 tid, u8 sta_index);
+int wcn36xx_smd_trigger_ba(struct wcn36xx *wcn, u8 sta_index);
+
+int wcn36xx_smd_update_cfg(struct wcn36xx *wcn, u32 cfg_id, u32 value);
+#endif	/* _SMD_H_ */
diff --git a/drivers/net/wireless/ath/wcn36xx/txrx.c b/drivers/net/wireless/ath/wcn36xx/txrx.c
new file mode 100644
index 000000000000..b2b60e30caaf
--- /dev/null
+++ b/drivers/net/wireless/ath/wcn36xx/txrx.c
@@ -0,0 +1,284 @@
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include "txrx.h"
+
+static inline int get_rssi0(struct wcn36xx_rx_bd *bd)
+{
+	return 100 - ((bd->phy_stat0 >> 24) & 0xff);
+}
+
+int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb)
+{
+	struct ieee80211_rx_status status;
+	struct ieee80211_hdr *hdr;
+	struct wcn36xx_rx_bd *bd;
+	u16 fc, sn;
+
+	/*
+	 * All fields must be 0, otherwise it can lead to
+	 * unexpected consequences.
+	 */
+	memset(&status, 0, sizeof(status));
+
+	bd = (struct wcn36xx_rx_bd *)skb->data;
+	buff_to_be((u32 *)bd, sizeof(*bd)/sizeof(u32));
+	wcn36xx_dbg_dump(WCN36XX_DBG_RX_DUMP,
+			 "BD   <<< ", (char *)bd,
+			 sizeof(struct wcn36xx_rx_bd));
+
+	skb_put(skb, bd->pdu.mpdu_header_off + bd->pdu.mpdu_len);
+	skb_pull(skb, bd->pdu.mpdu_header_off);
+
+	status.mactime = 10;
+	status.freq = WCN36XX_CENTER_FREQ(wcn);
+	status.band = WCN36XX_BAND(wcn);
+	status.signal = -get_rssi0(bd);
+	status.antenna = 1;
+	status.rate_idx = 1;
+	status.flag = 0;
+	status.rx_flags = 0;
+	status.flag |= RX_FLAG_IV_STRIPPED |
+		       RX_FLAG_MMIC_STRIPPED |
+		       RX_FLAG_DECRYPTED;
+
+	wcn36xx_dbg(WCN36XX_DBG_RX, "status.flags=%x status->vendor_radiotap_len=%x\n",
+		    status.flag,  status.vendor_radiotap_len);
+
+	memcpy(IEEE80211_SKB_RXCB(skb), &status, sizeof(status));
+
+	hdr = (struct ieee80211_hdr *) skb->data;
+	fc = __le16_to_cpu(hdr->frame_control);
+	sn = IEEE80211_SEQ_TO_SN(__le16_to_cpu(hdr->seq_ctrl));
+
+	if (ieee80211_is_beacon(hdr->frame_control)) {
+		wcn36xx_dbg(WCN36XX_DBG_BEACON, "beacon skb %p len %d fc %04x sn %d\n",
+			    skb, skb->len, fc, sn);
+		wcn36xx_dbg_dump(WCN36XX_DBG_BEACON_DUMP, "SKB <<< ",
+				 (char *)skb->data, skb->len);
+	} else {
+		wcn36xx_dbg(WCN36XX_DBG_RX, "rx skb %p len %d fc %04x sn %d\n",
+			    skb, skb->len, fc, sn);
+		wcn36xx_dbg_dump(WCN36XX_DBG_RX_DUMP, "SKB <<< ",
+				 (char *)skb->data, skb->len);
+	}
+
+	ieee80211_rx_irqsafe(wcn->hw, skb);
+
+	return 0;
+}
+
+static void wcn36xx_set_tx_pdu(struct wcn36xx_tx_bd *bd,
+			       u32 mpdu_header_len,
+			       u32 len,
+			       u16 tid)
+{
+	bd->pdu.mpdu_header_len = mpdu_header_len;
+	bd->pdu.mpdu_header_off = sizeof(*bd);
+	bd->pdu.mpdu_data_off = bd->pdu.mpdu_header_len +
+		bd->pdu.mpdu_header_off;
+	bd->pdu.mpdu_len = len;
+	bd->pdu.tid = tid;
+}
+
+static inline struct wcn36xx_vif *get_vif_by_addr(struct wcn36xx *wcn,
+						  u8 *addr)
+{
+	struct wcn36xx_vif *vif_priv = NULL;
+	struct ieee80211_vif *vif = NULL;
+	list_for_each_entry(vif_priv, &wcn->vif_list, list) {
+			vif = container_of((void *)vif_priv,
+				   struct ieee80211_vif,
+				   drv_priv);
+			if (memcmp(vif->addr, addr, ETH_ALEN) == 0)
+				return vif_priv;
+	}
+	wcn36xx_warn("vif %pM not found\n", addr);
+	return NULL;
+}
+static void wcn36xx_set_tx_data(struct wcn36xx_tx_bd *bd,
+				struct wcn36xx *wcn,
+				struct wcn36xx_vif **vif_priv,
+				struct wcn36xx_sta *sta_priv,
+				struct ieee80211_hdr *hdr,
+				bool bcast)
+{
+	struct ieee80211_vif *vif = NULL;
+	struct wcn36xx_vif *__vif_priv = NULL;
+	bd->bd_rate = WCN36XX_BD_RATE_DATA;
+
+	/*
+	 * For not unicast frames mac80211 will not set sta pointer so use
+	 * self_sta_index instead.
+	 */
+	if (sta_priv) {
+		__vif_priv = sta_priv->vif;
+		vif = container_of((void *)__vif_priv,
+				   struct ieee80211_vif,
+				   drv_priv);
+
+		if (vif->type == NL80211_IFTYPE_STATION) {
+			bd->sta_index = sta_priv->bss_sta_index;
+			bd->dpu_desc_idx = sta_priv->bss_dpu_desc_index;
+		} else if (vif->type == NL80211_IFTYPE_AP ||
+			   vif->type == NL80211_IFTYPE_ADHOC ||
+			   vif->type == NL80211_IFTYPE_MESH_POINT) {
+			bd->sta_index = sta_priv->sta_index;
+			bd->dpu_desc_idx = sta_priv->dpu_desc_index;
+		}
+	} else {
+		__vif_priv = get_vif_by_addr(wcn, hdr->addr2);
+		bd->sta_index = __vif_priv->self_sta_index;
+		bd->dpu_desc_idx = __vif_priv->self_dpu_desc_index;
+	}
+
+	bd->dpu_sign = __vif_priv->ucast_dpu_signature;
+
+	if (ieee80211_is_nullfunc(hdr->frame_control) ||
+	   (sta_priv && !sta_priv->is_data_encrypted))
+		bd->dpu_ne = 1;
+
+	if (bcast) {
+		bd->ub = 1;
+		bd->ack_policy = 1;
+	}
+	*vif_priv = __vif_priv;
+}
+
+static void wcn36xx_set_tx_mgmt(struct wcn36xx_tx_bd *bd,
+				struct wcn36xx *wcn,
+				struct wcn36xx_vif **vif_priv,
+				struct ieee80211_hdr *hdr,
+				bool bcast)
+{
+	struct wcn36xx_vif *__vif_priv =
+		get_vif_by_addr(wcn, hdr->addr2);
+	bd->sta_index = __vif_priv->self_sta_index;
+	bd->dpu_desc_idx = __vif_priv->self_dpu_desc_index;
+	bd->dpu_ne = 1;
+
+	/* default rate for unicast */
+	if (ieee80211_is_mgmt(hdr->frame_control))
+		bd->bd_rate = (WCN36XX_BAND(wcn) == IEEE80211_BAND_5GHZ) ?
+			WCN36XX_BD_RATE_CTRL :
+			WCN36XX_BD_RATE_MGMT;
+	else if (ieee80211_is_ctl(hdr->frame_control))
+		bd->bd_rate = WCN36XX_BD_RATE_CTRL;
+	else
+		wcn36xx_warn("frame control type unknown\n");
+
+	/*
+	 * In joining state trick hardware that probe is sent as
+	 * unicast even if address is broadcast.
+	 */
+	if (__vif_priv->is_joining &&
+	    ieee80211_is_probe_req(hdr->frame_control))
+		bcast = false;
+
+	if (bcast) {
+		/* broadcast */
+		bd->ub = 1;
+		/* No ack needed not unicast */
+		bd->ack_policy = 1;
+		bd->queue_id = WCN36XX_TX_B_WQ_ID;
+	} else
+		bd->queue_id = WCN36XX_TX_U_WQ_ID;
+	*vif_priv = __vif_priv;
+}
+
+int wcn36xx_start_tx(struct wcn36xx *wcn,
+		     struct wcn36xx_sta *sta_priv,
+		     struct sk_buff *skb)
+{
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	struct wcn36xx_vif *vif_priv = NULL;
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	unsigned long flags;
+	bool is_low = ieee80211_is_data(hdr->frame_control);
+	bool bcast = is_broadcast_ether_addr(hdr->addr1) ||
+		is_multicast_ether_addr(hdr->addr1);
+	struct wcn36xx_tx_bd *bd = wcn36xx_dxe_get_next_bd(wcn, is_low);
+
+	if (!bd) {
+		/*
+		 * TX DXE are used in pairs. One for the BD and one for the
+		 * actual frame. The BD DXE's has a preallocated buffer while
+		 * the skb ones does not. If this isn't true something is really
+		 * wierd. TODO: Recover from this situation
+		 */
+
+		wcn36xx_err("bd address may not be NULL for BD DXE\n");
+		return -EINVAL;
+	}
+
+	memset(bd, 0, sizeof(*bd));
+
+	wcn36xx_dbg(WCN36XX_DBG_TX,
+		    "tx skb %p len %d fc %04x sn %d %s %s\n",
+		    skb, skb->len, __le16_to_cpu(hdr->frame_control),
+		    IEEE80211_SEQ_TO_SN(__le16_to_cpu(hdr->seq_ctrl)),
+		    is_low ? "low" : "high", bcast ? "bcast" : "ucast");
+
+	wcn36xx_dbg_dump(WCN36XX_DBG_TX_DUMP, "", skb->data, skb->len);
+
+	bd->dpu_rf = WCN36XX_BMU_WQ_TX;
+
+	bd->tx_comp = info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS;
+	if (bd->tx_comp) {
+		wcn36xx_dbg(WCN36XX_DBG_DXE, "TX_ACK status requested\n");
+		spin_lock_irqsave(&wcn->dxe_lock, flags);
+		if (wcn->tx_ack_skb) {
+			spin_unlock_irqrestore(&wcn->dxe_lock, flags);
+			wcn36xx_warn("tx_ack_skb already set\n");
+			return -EINVAL;
+		}
+
+		wcn->tx_ack_skb = skb;
+		spin_unlock_irqrestore(&wcn->dxe_lock, flags);
+
+		/* Only one at a time is supported by fw. Stop the TX queues
+		 * until the ack status gets back.
+		 *
+		 * TODO: Add watchdog in case FW does not answer
+		 */
+		ieee80211_stop_queues(wcn->hw);
+	}
+
+	/* Data frames served first*/
+	if (is_low) {
+		wcn36xx_set_tx_data(bd, wcn, &vif_priv, sta_priv, hdr, bcast);
+		wcn36xx_set_tx_pdu(bd,
+			   ieee80211_is_data_qos(hdr->frame_control) ?
+			   sizeof(struct ieee80211_qos_hdr) :
+			   sizeof(struct ieee80211_hdr_3addr),
+			   skb->len, sta_priv ? sta_priv->tid : 0);
+	} else {
+		/* MGMT and CTRL frames are handeld here*/
+		wcn36xx_set_tx_mgmt(bd, wcn, &vif_priv, hdr, bcast);
+		wcn36xx_set_tx_pdu(bd,
+			   ieee80211_is_data_qos(hdr->frame_control) ?
+			   sizeof(struct ieee80211_qos_hdr) :
+			   sizeof(struct ieee80211_hdr_3addr),
+			   skb->len, WCN36XX_TID);
+	}
+
+	buff_to_be((u32 *)bd, sizeof(*bd)/sizeof(u32));
+	bd->tx_bd_sign = 0xbdbdbdbd;
+
+	return wcn36xx_dxe_tx_frame(wcn, vif_priv, skb, is_low);
+}
diff --git a/drivers/net/wireless/ath/wcn36xx/txrx.h b/drivers/net/wireless/ath/wcn36xx/txrx.h
new file mode 100644
index 000000000000..bbfbcf808c77
--- /dev/null
+++ b/drivers/net/wireless/ath/wcn36xx/txrx.h
@@ -0,0 +1,160 @@
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _TXRX_H_
+#define _TXRX_H_
+
+#include <linux/etherdevice.h>
+#include "wcn36xx.h"
+
+/* TODO describe all properties */
+#define WCN36XX_802_11_HEADER_LEN	24
+#define WCN36XX_BMU_WQ_TX		25
+#define WCN36XX_TID			7
+/* broadcast wq ID */
+#define WCN36XX_TX_B_WQ_ID		0xA
+#define WCN36XX_TX_U_WQ_ID		0x9
+/* bd_rate */
+#define WCN36XX_BD_RATE_DATA 0
+#define WCN36XX_BD_RATE_MGMT 2
+#define WCN36XX_BD_RATE_CTRL 3
+
+struct wcn36xx_pdu {
+	u32	dpu_fb:8;
+	u32	adu_fb:8;
+	u32	pdu_id:16;
+
+	/* 0x04*/
+	u32	tail_pdu_idx:16;
+	u32	head_pdu_idx:16;
+
+	/* 0x08*/
+	u32	pdu_count:7;
+	u32	mpdu_data_off:9;
+	u32	mpdu_header_off:8;
+	u32	mpdu_header_len:8;
+
+	/* 0x0c*/
+	u32	reserved4:8;
+	u32	tid:4;
+	u32	reserved3:4;
+	u32	mpdu_len:16;
+};
+
+struct wcn36xx_rx_bd {
+	u32	bdt:2;
+	u32	ft:1;
+	u32	dpu_ne:1;
+	u32	rx_key_id:3;
+	u32	ub:1;
+	u32	rmf:1;
+	u32	uma_bypass:1;
+	u32	csr11:1;
+	u32	reserved0:1;
+	u32	scan_learn:1;
+	u32	rx_ch:4;
+	u32	rtsf:1;
+	u32	bsf:1;
+	u32	a2hf:1;
+	u32	st_auf:1;
+	u32	dpu_sign:3;
+	u32	dpu_rf:8;
+
+	struct wcn36xx_pdu pdu;
+
+	/* 0x14*/
+	u32	addr3:8;
+	u32	addr2:8;
+	u32	addr1:8;
+	u32	dpu_desc_idx:8;
+
+	/* 0x18*/
+	u32	rxp_flags:23;
+	u32	rate_id:9;
+
+	u32	phy_stat0;
+	u32	phy_stat1;
+
+	/* 0x24 */
+	u32	rx_times;
+
+	u32	pmi_cmd[6];
+
+	/* 0x40 */
+	u32	reserved7:4;
+	u32	reorder_slot_id:6;
+	u32	reorder_fwd_id:6;
+	u32	reserved6:12;
+	u32	reorder_code:4;
+
+	/* 0x44 */
+	u32	exp_seq_num:12;
+	u32	cur_seq_num:12;
+	u32	fr_type_subtype:8;
+
+	/* 0x48 */
+	u32	msdu_size:16;
+	u32	sub_fr_id:4;
+	u32	proc_order:4;
+	u32	reserved9:4;
+	u32	aef:1;
+	u32	lsf:1;
+	u32	esf:1;
+	u32	asf:1;
+};
+
+struct wcn36xx_tx_bd {
+	u32	bdt:2;
+	u32	ft:1;
+	u32	dpu_ne:1;
+	u32	fw_tx_comp:1;
+	u32	tx_comp:1;
+	u32	reserved1:1;
+	u32	ub:1;
+	u32	rmf:1;
+	u32	reserved0:12;
+	u32	dpu_sign:3;
+	u32	dpu_rf:8;
+
+	struct wcn36xx_pdu pdu;
+
+	/* 0x14*/
+	u32	reserved5:7;
+	u32	queue_id:5;
+	u32	bd_rate:2;
+	u32	ack_policy:2;
+	u32	sta_index:8;
+	u32	dpu_desc_idx:8;
+
+	u32	tx_bd_sign;
+	u32	reserved6;
+	u32	dxe_start_time;
+	u32	dxe_end_time;
+
+	/*u32	tcp_udp_start_off:10;
+	u32	header_cks:16;
+	u32	reserved7:6;*/
+};
+
+struct wcn36xx_sta;
+struct wcn36xx;
+
+int  wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb);
+int wcn36xx_start_tx(struct wcn36xx *wcn,
+		     struct wcn36xx_sta *sta_priv,
+		     struct sk_buff *skb);
+
+#endif	/* _TXRX_H_ */
diff --git a/drivers/net/wireless/ath/wcn36xx/wcn36xx.h b/drivers/net/wireless/ath/wcn36xx/wcn36xx.h
new file mode 100644
index 000000000000..58b63833e8e7
--- /dev/null
+++ b/drivers/net/wireless/ath/wcn36xx/wcn36xx.h
@@ -0,0 +1,238 @@
+/*
+ * Copyright (c) 2013 Eugene Krasnikov <k.eugene.e@gmail.com>
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
+ * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+ * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef _WCN36XX_H_
+#define _WCN36XX_H_
+
+#include <linux/completion.h>
+#include <linux/printk.h>
+#include <linux/spinlock.h>
+#include <net/mac80211.h>
+
+#include "hal.h"
+#include "smd.h"
+#include "txrx.h"
+#include "dxe.h"
+#include "pmc.h"
+#include "debug.h"
+
+#define WLAN_NV_FILE               "wlan/prima/WCNSS_qcom_wlan_nv.bin"
+#define WCN36XX_AGGR_BUFFER_SIZE 64
+
+extern unsigned int wcn36xx_dbg_mask;
+
+enum wcn36xx_debug_mask {
+	WCN36XX_DBG_DXE		= 0x00000001,
+	WCN36XX_DBG_DXE_DUMP	= 0x00000002,
+	WCN36XX_DBG_SMD		= 0x00000004,
+	WCN36XX_DBG_SMD_DUMP	= 0x00000008,
+	WCN36XX_DBG_RX		= 0x00000010,
+	WCN36XX_DBG_RX_DUMP	= 0x00000020,
+	WCN36XX_DBG_TX		= 0x00000040,
+	WCN36XX_DBG_TX_DUMP	= 0x00000080,
+	WCN36XX_DBG_HAL		= 0x00000100,
+	WCN36XX_DBG_HAL_DUMP	= 0x00000200,
+	WCN36XX_DBG_MAC		= 0x00000400,
+	WCN36XX_DBG_BEACON	= 0x00000800,
+	WCN36XX_DBG_BEACON_DUMP	= 0x00001000,
+	WCN36XX_DBG_PMC		= 0x00002000,
+	WCN36XX_DBG_PMC_DUMP	= 0x00004000,
+	WCN36XX_DBG_ANY		= 0xffffffff,
+};
+
+#define wcn36xx_err(fmt, arg...)				\
+	printk(KERN_ERR pr_fmt("ERROR " fmt), ##arg);
+
+#define wcn36xx_warn(fmt, arg...)				\
+	printk(KERN_WARNING pr_fmt("WARNING " fmt), ##arg)
+
+#define wcn36xx_info(fmt, arg...)		\
+	printk(KERN_INFO pr_fmt(fmt), ##arg)
+
+#define wcn36xx_dbg(mask, fmt, arg...) do {			\
+	if (wcn36xx_dbg_mask & mask)					\
+		printk(KERN_DEBUG pr_fmt(fmt), ##arg);	\
+} while (0)
+
+#define wcn36xx_dbg_dump(mask, prefix_str, buf, len) do {	\
+	if (wcn36xx_dbg_mask & mask)					\
+		print_hex_dump(KERN_DEBUG, pr_fmt(prefix_str),	\
+			       DUMP_PREFIX_OFFSET, 32, 1,	\
+			       buf, len, false);		\
+} while (0)
+
+#define WCN36XX_HW_CHANNEL(__wcn) (__wcn->hw->conf.chandef.chan->hw_value)
+#define WCN36XX_BAND(__wcn) (__wcn->hw->conf.chandef.chan->band)
+#define WCN36XX_CENTER_FREQ(__wcn) (__wcn->hw->conf.chandef.chan->center_freq)
+#define WCN36XX_LISTEN_INTERVAL(__wcn) (__wcn->hw->conf.listen_interval)
+#define WCN36XX_FLAGS(__wcn) (__wcn->hw->flags)
+#define WCN36XX_MAX_POWER(__wcn) (__wcn->hw->conf.chandef.chan->max_power)
+
+static inline void buff_to_be(u32 *buf, size_t len)
+{
+	int i;
+	for (i = 0; i < len; i++)
+		buf[i] = cpu_to_be32(buf[i]);
+}
+
+struct nv_data {
+	int	is_valid;
+	u8	table;
+};
+
+/* Interface for platform control path
+ *
+ * @open: hook must be called when wcn36xx wants to open control channel.
+ * @tx: sends a buffer.
+ */
+struct wcn36xx_platform_ctrl_ops {
+	int (*open)(void *drv_priv, void *rsp_cb);
+	void (*close)(void);
+	int (*tx)(char *buf, size_t len);
+	int (*get_hw_mac)(u8 *addr);
+	int (*smsm_change_state)(u32 clear_mask, u32 set_mask);
+};
+
+/**
+ * struct wcn36xx_vif - holds VIF related fields
+ *
+ * @bss_index: bss_index is initially set to 0xFF. bss_index is received from
+ * HW after first config_bss call and must be used in delete_bss and
+ * enter/exit_bmps.
+ */
+struct wcn36xx_vif {
+	struct list_head list;
+	struct wcn36xx_sta *sta;
+	u8 dtim_period;
+	enum ani_ed_type encrypt_type;
+	bool is_joining;
+	struct wcn36xx_hal_mac_ssid ssid;
+
+	/* Power management */
+	enum wcn36xx_power_state pw_state;
+
+	u8 bss_index;
+	u8 ucast_dpu_signature;
+	/* Returned from WCN36XX_HAL_ADD_STA_SELF_RSP */
+	u8 self_sta_index;
+	u8 self_dpu_desc_index;
+};
+
+/**
+ * struct wcn36xx_sta - holds STA related fields
+ *
+ * @tid: traffic ID that is used during AMPDU and in TX BD.
+ * @sta_index: STA index is returned from HW after config_sta call and is
+ * used in both SMD channel and TX BD.
+ * @dpu_desc_index: DPU descriptor index is returned from HW after config_sta
+ * call and is used in TX BD.
+ * @bss_sta_index: STA index is returned from HW after config_bss call and is
+ * used in both SMD channel and TX BD. See table bellow when it is used.
+ * @bss_dpu_desc_index: DPU descriptor index is returned from HW after
+ * config_bss call and is used in TX BD.
+ * ______________________________________________
+ * |		  |	STA	|	AP	|
+ * |______________|_____________|_______________|
+ * |    TX BD     |bss_sta_index|   sta_index   |
+ * |______________|_____________|_______________|
+ * |all SMD calls |bss_sta_index|   sta_index	|
+ * |______________|_____________|_______________|
+ * |smd_delete_sta|  sta_index  |   sta_index	|
+ * |______________|_____________|_______________|
+ */
+struct wcn36xx_sta {
+	struct wcn36xx_vif *vif;
+	u16 aid;
+	u16 tid;
+	u8 sta_index;
+	u8 dpu_desc_index;
+	u8 bss_sta_index;
+	u8 bss_dpu_desc_index;
+	bool is_data_encrypted;
+	/* Rates */
+	struct wcn36xx_hal_supported_rates supported_rates;
+};
+struct wcn36xx_dxe_ch;
+struct wcn36xx {
+	struct ieee80211_hw	*hw;
+	struct device		*dev;
+	struct list_head	vif_list;
+
+	u8			fw_revision;
+	u8			fw_version;
+	u8			fw_minor;
+	u8			fw_major;
+
+	/* extra byte for the NULL termination */
+	u8			crm_version[WCN36XX_HAL_VERSION_LENGTH + 1];
+	u8			wlan_version[WCN36XX_HAL_VERSION_LENGTH + 1];
+
+	/* IRQs */
+	int			tx_irq;
+	int			rx_irq;
+	void __iomem		*mmio;
+
+	struct wcn36xx_platform_ctrl_ops *ctrl_ops;
+	/*
+	 * smd_buf must be protected with smd_mutex to garantee
+	 * that all messages are sent one after another
+	 */
+	u8			*hal_buf;
+	size_t			hal_rsp_len;
+	struct mutex		hal_mutex;
+	struct completion	hal_rsp_compl;
+	struct workqueue_struct	*hal_ind_wq;
+	struct work_struct	hal_ind_work;
+	struct mutex		hal_ind_mutex;
+	struct list_head	hal_ind_queue;
+
+	/* DXE channels */
+	struct wcn36xx_dxe_ch	dxe_tx_l_ch;	/* TX low */
+	struct wcn36xx_dxe_ch	dxe_tx_h_ch;	/* TX high */
+	struct wcn36xx_dxe_ch	dxe_rx_l_ch;	/* RX low */
+	struct wcn36xx_dxe_ch	dxe_rx_h_ch;	/* RX high */
+
+	/* For synchronization of DXE resources from BH, IRQ and WQ contexts */
+	spinlock_t	dxe_lock;
+	bool                    queues_stopped;
+
+	/* Memory pools */
+	struct wcn36xx_dxe_mem_pool mgmt_mem_pool;
+	struct wcn36xx_dxe_mem_pool data_mem_pool;
+
+	struct sk_buff		*tx_ack_skb;
+
+#ifdef CONFIG_WCN36XX_DEBUGFS
+	/* Debug file system entry */
+	struct wcn36xx_dfs_entry    dfs;
+#endif /* CONFIG_WCN36XX_DEBUGFS */
+
+};
+
+static inline bool wcn36xx_is_fw_version(struct wcn36xx *wcn,
+					 u8 major,
+					 u8 minor,
+					 u8 version,
+					 u8 revision)
+{
+	return (wcn->fw_major == major &&
+		wcn->fw_minor == minor &&
+		wcn->fw_version == version &&
+		wcn->fw_revision == revision);
+}
+void wcn36xx_set_default_rates(struct wcn36xx_hal_supported_rates *rates);
+
+#endif	/* _WCN36XX_H_ */
-- 
cgit 


From 21cf502a283937ec48bbce5a00af59e0c326ba90 Mon Sep 17 00:00:00 2001
From: Kirill Tkhai <tkhai@yandex.ru>
Date: Wed, 2 Oct 2013 00:40:46 +0400
Subject: rt2x00_pci: Fix interrupt handler name (visible at /proc/interrupts)

Currently driver name is wrong. PCI device address is visible at
/proc/interrupts instead of the name:

 43:    124      0      0      0   PCI-MSI-edge    rtsx_pci
 44:    384      0      0      0   PCI-MSI-edge    snd_hda_intel
 45:  25096      0      0      0   PCI-MSI-edge    0000:01:00.0
                                                   ^^^^^^^^^^^^

So, pass the right name. rt2x00_ops->name contains KBUILD_MODNAME
and good for that, so pass it.

Handler names will be "rt2500pci", "rt2500pci" etc.

Signed-off-by: Kirill Tkhai <tkhai@yandex.ru>
CC: Ivo van Doorn <IvDoorn@gmail.com>
CC: Gertjan van Wingerde <gwingerde@gmail.com>
CC: Helmut Schaa <helmut.schaa@googlemail.com>
CC: linux-wireless@vger.kernel.org
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2x00pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rt2x00/rt2x00pci.c b/drivers/net/wireless/rt2x00/rt2x00pci.c
index 76d95deb274b..6c5d667103c4 100644
--- a/drivers/net/wireless/rt2x00/rt2x00pci.c
+++ b/drivers/net/wireless/rt2x00/rt2x00pci.c
@@ -121,7 +121,7 @@ int rt2x00pci_probe(struct pci_dev *pci_dev, const struct rt2x00_ops *ops)
 	rt2x00dev->ops = ops;
 	rt2x00dev->hw = hw;
 	rt2x00dev->irq = pci_dev->irq;
-	rt2x00dev->name = pci_name(pci_dev);
+	rt2x00dev->name = ops->name;
 
 	if (pci_is_pcie(pci_dev))
 		rt2x00_set_chip_intf(rt2x00dev, RT2X00_CHIP_INTF_PCIE);
-- 
cgit 


From 9f55c6201354183345fa06c6986668d159b6507f Mon Sep 17 00:00:00 2001
From: Felipe Balbi <balbi@ti.com>
Date: Wed, 2 Oct 2013 08:00:48 -0500
Subject: net: wireless: wl1251: update firmware path

TI firmwares are located under ti-connectivity
directory. Update path to make sure driver can
find and load firmware blob.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ti/wl1251/wl1251.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ti/wl1251/wl1251.h b/drivers/net/wireless/ti/wl1251/wl1251.h
index fd02060038de..2c3bd1bff3f6 100644
--- a/drivers/net/wireless/ti/wl1251/wl1251.h
+++ b/drivers/net/wireless/ti/wl1251/wl1251.h
@@ -424,8 +424,8 @@ void wl1251_disable_interrupts(struct wl1251 *wl);
 #define CHIP_ID_1271_PG10	           (0x4030101)
 #define CHIP_ID_1271_PG20	           (0x4030111)
 
-#define WL1251_FW_NAME "wl1251-fw.bin"
-#define WL1251_NVS_NAME "wl1251-nvs.bin"
+#define WL1251_FW_NAME "ti-connectivity/wl1251-fw.bin"
+#define WL1251_NVS_NAME "ti-connectivity/wl1251-nvs.bin"
 
 #define WL1251_POWER_ON_SLEEP 10 /* in milliseconds */
 
-- 
cgit 


From dfa0415bcbc606bd20c63d3119ed00839280690a Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Thu, 3 Oct 2013 13:49:09 +0200
Subject: bcma: reject PCI cards in bcma.

bcma currently only supports PCIe cards and no PCI cards, reject them
if we find them. I have never heard of any PCI card using the AI bus
(bcma), all of them are using ssb instead.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/bcma/host_pci.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/bcma/host_pci.c b/drivers/bcma/host_pci.c
index a355e63a3838..a1caf9c5b132 100644
--- a/drivers/bcma/host_pci.c
+++ b/drivers/bcma/host_pci.c
@@ -188,8 +188,11 @@ static int bcma_host_pci_probe(struct pci_dev *dev,
 		pci_write_config_dword(dev, 0x40, val & 0xffff00ff);
 
 	/* SSB needed additional powering up, do we have any AMBA PCI cards? */
-	if (!pci_is_pcie(dev))
-		bcma_err(bus, "PCI card detected, report problems.\n");
+	if (!pci_is_pcie(dev)) {
+		bcma_err(bus, "PCI card detected, they are not supported.\n");
+		err = -ENXIO;
+		goto err_pci_release_regions;
+	}
 
 	/* Map MMIO */
 	err = -ENOMEM;
-- 
cgit 


From b9f54bd03fecab53ab57e0850350359b27a6e117 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Thu, 3 Oct 2013 13:49:10 +0200
Subject: bcma: add PCI id 0x4313

This PCI id is used by some BCM4313 cards without a sprom. I have seen
such a card on a router connected to some BCM63XX SoC via PCIe. There
are cards out there with the same PCI id and a BCM4311, which is a pre
ieee80211n chip only supporting ieee80211a, these are still not
supported by b43 and not detected by ssb.

This devices was found by someone in this ticket:
https://dev.openwrt.org/ticket/13551

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/bcma/host_pci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/bcma/host_pci.c b/drivers/bcma/host_pci.c
index a1caf9c5b132..6fb98b53533f 100644
--- a/drivers/bcma/host_pci.c
+++ b/drivers/bcma/host_pci.c
@@ -272,6 +272,7 @@ static SIMPLE_DEV_PM_OPS(bcma_pm_ops, bcma_host_pci_suspend,
 
 static DEFINE_PCI_DEVICE_TABLE(bcma_pci_bridge_tbl) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x0576) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4313) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 43224) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4331) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_BROADCOM, 0x4353) },
-- 
cgit 


From 7d9b3589dfea43fb49ebc13205b5feadc4e364d7 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Thu, 3 Oct 2013 13:49:11 +0200
Subject: brcmsmac: add support for a BCM4313 with PCI id 0x4313

There are some BCM4313 out there with a PCI id of 0x4313. These devices
are missing a sprom and are only used on routers or other embedded
devices. We found one connected to a BCM63XX SoC.

This devices was found by someone in this ticket:
https://dev.openwrt.org/ticket/13551

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmsmac/main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/brcm80211/brcmsmac/main.c b/drivers/net/wireless/brcm80211/brcmsmac/main.c
index 4608e0eb1493..df6229ed52c8 100644
--- a/drivers/net/wireless/brcm80211/brcmsmac/main.c
+++ b/drivers/net/wireless/brcm80211/brcmsmac/main.c
@@ -5695,7 +5695,7 @@ static bool brcms_c_chipmatch_pci(struct bcma_device *core)
 		return true;
 	if ((device == BCM43224_D11N_ID) || (device == BCM43225_D11N2G_ID))
 		return true;
-	if (device == BCM4313_D11N2G_ID)
+	if (device == BCM4313_D11N2G_ID || device == BCM4313_CHIP_ID)
 		return true;
 	if ((device == BCM43236_D11N_ID) || (device == BCM43236_D11N2G_ID))
 		return true;
-- 
cgit 


From a750db9e5cd4b7ec798d29fb09742890e6d78c27 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 3 Oct 2013 14:07:01 +0200
Subject: rt2x00: rt2800lib: remove TXMIXER_GAIN entries from the extended
 EEPROM map

The comments are indicating that the TXMIXER_GAIN_BG
and TXMIXED_GAIN_A entries are overlapping with the
RSSI_BG2 and RSSI_A2 entries in the extended EEPROM
map. This is not correct, because the upper byte of
the RSSI_BG2 and RSSI_A2 entries are reserved. There
are no TX mixer gain values are stored at all in the
extended EEPROM.

Remove the initialization of these entries from the
extended EEPROM map to reflect this.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Paul Menzel <paulepanter@users.sourceforge.net>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800lib.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 25aaa5e12d4e..27cdf5bbc12a 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -280,10 +280,8 @@ static const unsigned int rt2800_eeprom_map_ext[EEPROM_WORD_COUNT] = {
 	[EEPROM_RSSI_BG]		= 0x0028,
 	[EEPROM_TXPOWER_DELTA]		= 0x0028, /* Overlaps with RSSI_BG */
 	[EEPROM_RSSI_BG2]		= 0x0029,
-	[EEPROM_TXMIXER_GAIN_BG]	= 0x0029, /* Overlaps with RSSI_BG2 */
 	[EEPROM_RSSI_A]			= 0x002a,
 	[EEPROM_RSSI_A2]		= 0x002b,
-	[EEPROM_TXMIXER_GAIN_A]		= 0x002b, /* Overlaps with RSSI_A2 */
 	[EEPROM_TXPOWER_BG1]		= 0x0030,
 	[EEPROM_TXPOWER_BG2]		= 0x0037,
 	[EEPROM_EXT_TXPOWER_BG3]	= 0x003e,
-- 
cgit 


From cdabcb2bd91f6964e6cbb97513890318dc7110e1 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 3 Oct 2013 14:07:02 +0200
Subject: rt2x00: rt2800lib: remove TXPOWER_DELTA entry from extended EEPROM
 map

The TXPOWER_DELTA field of the regular EEPROM
stores the TX power compensation value for HT40.
The extended EEPROM has no such field, it stores
separate TX power values for HT20 and for HT40.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Paul Menzel <paulepanter@users.sourceforge.net>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800lib.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 27cdf5bbc12a..6163f87374fd 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -278,7 +278,6 @@ static const unsigned int rt2800_eeprom_map_ext[EEPROM_WORD_COUNT] = {
 	[EEPROM_LNA]			= 0x0026,
 	[EEPROM_EXT_LNA2]		= 0x0027,
 	[EEPROM_RSSI_BG]		= 0x0028,
-	[EEPROM_TXPOWER_DELTA]		= 0x0028, /* Overlaps with RSSI_BG */
 	[EEPROM_RSSI_BG2]		= 0x0029,
 	[EEPROM_RSSI_A]			= 0x002a,
 	[EEPROM_RSSI_A2]		= 0x002b,
-- 
cgit 


From 0ffd2a9a44ceb80e4e58fc3570bb5c941211d77f Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 3 Oct 2013 20:00:42 +0200
Subject: rt2x00: rt2800lib: fix default VGC values for RT3593

Update the rt2800_get_default_vgc function to use the same VGC
values that the DPO_RT5572_LinuxSTA_2.6.1.3_20121022 reference
driver uses.

References:
  RT35xx_ChipAGCAdjust in chips/rt35xx.c
  RT3593_R66_MID_LOW_SENS_GET macro in include/chip/rt3593.h
  RT3593_R66_NON_MID_LOW_SEMS_GET macro in include/chips/rt3593.h

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800lib.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 6163f87374fd..eff0f56cf618 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -4413,6 +4413,7 @@ static u8 rt2800_get_default_vgc(struct rt2x00_dev *rt2x00dev)
 		    rt2x00_rt(rt2x00dev, RT3290) ||
 		    rt2x00_rt(rt2x00dev, RT3390) ||
 		    rt2x00_rt(rt2x00dev, RT3572) ||
+		    rt2x00_rt(rt2x00dev, RT3593) ||
 		    rt2x00_rt(rt2x00dev, RT5390) ||
 		    rt2x00_rt(rt2x00dev, RT5392) ||
 		    rt2x00_rt(rt2x00dev, RT5592))
@@ -4422,6 +4423,8 @@ static u8 rt2800_get_default_vgc(struct rt2x00_dev *rt2x00dev)
 	} else { /* 5GHZ band */
 		if (rt2x00_rt(rt2x00dev, RT3572))
 			vgc = 0x22 + (rt2x00dev->lna_gain * 5) / 3;
+		else if (rt2x00_rt(rt2x00dev, RT3593))
+			vgc = 0x20 + (rt2x00dev->lna_gain * 5) / 3;
 		else if (rt2x00_rt(rt2x00dev, RT5592))
 			vgc = 0x24 + (2 * rt2x00dev->lna_gain);
 		else {
-- 
cgit 


From 271f1a4d70c34ff1ff7a9e3b1fd56068757f24b1 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 3 Oct 2013 20:00:43 +0200
Subject: rt2x00: rt2800lib: fix VGC programming for RT3572 and RT3593

According to the DPO_RT5572_LinuxSTA_2.6.1.3_20121022
reference driver, programming of the 'BBP 66' register
on the RT3572 and RT3593 chipsets must be done via the
'rt2800_bbp_write_with_rx_chain' function. This ensures
that value is correclty set for all RX chains.

References:
  RT35xx_ChipAGCAdjust and RT35xx_SetAGCInitValue functions
  in chips/rt35xx.c

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800lib.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index eff0f56cf618..47ef81ba605d 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -4442,11 +4442,17 @@ static inline void rt2800_set_vgc(struct rt2x00_dev *rt2x00dev,
 				  struct link_qual *qual, u8 vgc_level)
 {
 	if (qual->vgc_level != vgc_level) {
-		if (rt2x00_rt(rt2x00dev, RT5592)) {
+		if (rt2x00_rt(rt2x00dev, RT3572) ||
+		    rt2x00_rt(rt2x00dev, RT3593)) {
+			rt2800_bbp_write_with_rx_chain(rt2x00dev, 66,
+						       vgc_level);
+		} else if (rt2x00_rt(rt2x00dev, RT5592)) {
 			rt2800_bbp_write(rt2x00dev, 83, qual->rssi > -65 ? 0x4a : 0x7a);
 			rt2800_bbp_write_with_rx_chain(rt2x00dev, 66, vgc_level);
-		} else
+		} else {
 			rt2800_bbp_write(rt2x00dev, 66, vgc_level);
+		}
+
 		qual->vgc_level = vgc_level;
 		qual->vgc_level_reg = vgc_level;
 	}
-- 
cgit 


From 733aec6a5bd39ba34ddd0568b7f7394aec2541fb Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Fri, 4 Oct 2013 22:07:09 +0200
Subject: rt2x00: rt2800lib: fix default VGC values for RT3572 for the 5GHz
 band

The rt2x00 driver uses 0x22 as a default VGC value
in VGC adjustment for the RT3572 chipset. In the
Ralink DPO_RT5572_LinuxSTA_2.6.1.3_20121022 driver,
this value is only used for initialization. During
VGC adjustment, the reference driver uses different
values.

Update the 'rt2800_get_default_vgc' function to
synchronize the values with the reference driver.
Also add the missing AGC initialization code into
the 'rt2800_config_channel' function.

References:
  RT35xx_SetAGCInitValue in chip/rt35xx.c
  RT35xx_ChipAGCAdjust in chip/rt35xx.c

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800lib.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 47ef81ba605d..3ea1b96204fa 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -3310,9 +3310,18 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
 
 	rt2800_register_write(rt2x00dev, TX_PIN_CFG, tx_pin);
 
-	if (rt2x00_rt(rt2x00dev, RT3572))
+	if (rt2x00_rt(rt2x00dev, RT3572)) {
 		rt2800_rfcsr_write(rt2x00dev, 8, 0x80);
 
+		/* AGC init */
+		if (rf->channel <= 14)
+			reg = 0x1c + (2 * rt2x00dev->lna_gain);
+		else
+			reg = 0x22 + ((rt2x00dev->lna_gain * 5) / 3);
+
+		rt2800_bbp_write_with_rx_chain(rt2x00dev, 66, reg);
+	}
+
 	if (rt2x00_rt(rt2x00dev, RT3593)) {
 		rt2800_register_read(rt2x00dev, GPIO_CTRL, &reg);
 
@@ -4421,9 +4430,7 @@ static u8 rt2800_get_default_vgc(struct rt2x00_dev *rt2x00dev)
 		else
 			vgc = 0x2e + rt2x00dev->lna_gain;
 	} else { /* 5GHZ band */
-		if (rt2x00_rt(rt2x00dev, RT3572))
-			vgc = 0x22 + (rt2x00dev->lna_gain * 5) / 3;
-		else if (rt2x00_rt(rt2x00dev, RT3593))
+		if (rt2x00_rt(rt2x00dev, RT3593))
 			vgc = 0x20 + (rt2x00dev->lna_gain * 5) / 3;
 		else if (rt2x00_rt(rt2x00dev, RT5592))
 			vgc = 0x24 + (2 * rt2x00dev->lna_gain);
-- 
cgit 


From fdbdd25c47ac1db04a161308dfb1060869eba982 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Sat, 5 Oct 2013 18:15:33 +0200
Subject: rt2x00: do not pause queue on flush

Pausing queue on flush make no sense since txdone procedure un-pause
queue. Before flush procedure we have to assure queue is stopped,
i.e. on receive path h/w RX is disabled, on transmit path queue is
disabled in mac80211. That conditions are true except one function:
rt2x00usb_watchdog_tx_dma(), so add stop/start queue there.

Note stop/start queue can be racy if we do this from multiple paths,
but currently we stop TX queues only on rt2x00lib_disable_radio(),
which also stop/sync watchdog, hance we have no race condition.

Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2x00queue.c | 37 +++++--------------------------
 drivers/net/wireless/rt2x00/rt2x00usb.c   |  2 ++
 2 files changed, 8 insertions(+), 31 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 6c8a33b6ee22..218e3206ce1b 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -1033,38 +1033,21 @@ EXPORT_SYMBOL_GPL(rt2x00queue_stop_queue);
 
 void rt2x00queue_flush_queue(struct data_queue *queue, bool drop)
 {
-	bool started;
 	bool tx_queue =
 		(queue->qid == QID_AC_VO) ||
 		(queue->qid == QID_AC_VI) ||
 		(queue->qid == QID_AC_BE) ||
 		(queue->qid == QID_AC_BK);
 
-	mutex_lock(&queue->status_lock);
 
 	/*
-	 * If the queue has been started, we must stop it temporarily
-	 * to prevent any new frames to be queued on the device. If
-	 * we are not dropping the pending frames, the queue must
-	 * only be stopped in the software and not the hardware,
-	 * otherwise the queue will never become empty on its own.
+	 * If we are not supposed to drop any pending
+	 * frames, this means we must force a start (=kick)
+	 * to the queue to make sure the hardware will
+	 * start transmitting.
 	 */
-	started = test_bit(QUEUE_STARTED, &queue->flags);
-	if (started) {
-		/*
-		 * Pause the queue
-		 */
-		rt2x00queue_pause_queue(queue);
-
-		/*
-		 * If we are not supposed to drop any pending
-		 * frames, this means we must force a start (=kick)
-		 * to the queue to make sure the hardware will
-		 * start transmitting.
-		 */
-		if (!drop && tx_queue)
-			queue->rt2x00dev->ops->lib->kick_queue(queue);
-	}
+	if (!drop && tx_queue)
+		queue->rt2x00dev->ops->lib->kick_queue(queue);
 
 	/*
 	 * Check if driver supports flushing, if that is the case we can
@@ -1080,14 +1063,6 @@ void rt2x00queue_flush_queue(struct data_queue *queue, bool drop)
 	if (unlikely(!rt2x00queue_empty(queue)))
 		rt2x00_warn(queue->rt2x00dev, "Queue %d failed to flush\n",
 			    queue->qid);
-
-	/*
-	 * Restore the queue to the previous status
-	 */
-	if (started)
-		rt2x00queue_unpause_queue(queue);
-
-	mutex_unlock(&queue->status_lock);
 }
 EXPORT_SYMBOL_GPL(rt2x00queue_flush_queue);
 
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c
index 88289873c0cf..4e121627925d 100644
--- a/drivers/net/wireless/rt2x00/rt2x00usb.c
+++ b/drivers/net/wireless/rt2x00/rt2x00usb.c
@@ -523,7 +523,9 @@ static void rt2x00usb_watchdog_tx_dma(struct data_queue *queue)
 	rt2x00_warn(queue->rt2x00dev, "TX queue %d DMA timed out, invoke forced forced reset\n",
 		    queue->qid);
 
+	rt2x00queue_stop_queue(queue);
 	rt2x00queue_flush_queue(queue, true);
+	rt2x00queue_start_queue(queue);
 }
 
 static int rt2x00usb_dma_timeout(struct data_queue *queue)
-- 
cgit 


From a9b1d9ac8c093e9ca011c105b7456e92c12e7320 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 6 Oct 2013 07:04:06 +0200
Subject: net: p54spi: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/p54/p54spi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/p54/p54spi.c b/drivers/net/wireless/p54/p54spi.c
index 7fc46f26cf2b..de15171e2cd8 100644
--- a/drivers/net/wireless/p54/p54spi.c
+++ b/drivers/net/wireless/p54/p54spi.c
@@ -636,7 +636,7 @@ static int p54spi_probe(struct spi_device *spi)
 	gpio_direction_input(p54spi_gpio_irq);
 
 	ret = request_irq(gpio_to_irq(p54spi_gpio_irq),
-			  p54spi_interrupt, IRQF_DISABLED, "p54spi",
+			  p54spi_interrupt, 0, "p54spi",
 			  priv->spi);
 	if (ret < 0) {
 		dev_err(&priv->spi->dev, "request_irq() failed");
-- 
cgit 


From 8f78b0bb8791d8164aed86970905cdc12f3b8496 Mon Sep 17 00:00:00 2001
From: Kevin Lo <kevlo@kevlo.org>
Date: Mon, 7 Oct 2013 16:02:01 +0800
Subject: rt2x00: rt2800lib: no need to toggle RF R30 bit 7 twice

In rt2800_config_channel_rf3xxx(), there's no need to toggle
RF R30 bit 7 twice.

Signed-off-by: Kevin Lo <kevlo@kevlo.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800lib.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 3ea1b96204fa..5a230c42fb0d 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -2026,13 +2026,6 @@ static void rt2800_config_channel_rf3xxx(struct rt2x00_dev *rt2x00dev,
 			  rt2x00dev->default_ant.tx_chain_num <= 2);
 	rt2800_rfcsr_write(rt2x00dev, 1, rfcsr);
 
-	rt2800_rfcsr_read(rt2x00dev, 30, &rfcsr);
-	rt2x00_set_field8(&rfcsr, RFCSR30_RF_CALIBRATION, 1);
-	rt2800_rfcsr_write(rt2x00dev, 30, rfcsr);
-	msleep(1);
-	rt2x00_set_field8(&rfcsr, RFCSR30_RF_CALIBRATION, 0);
-	rt2800_rfcsr_write(rt2x00dev, 30, rfcsr);
-
 	rt2800_rfcsr_read(rt2x00dev, 23, &rfcsr);
 	rt2x00_set_field8(&rfcsr, RFCSR23_FREQ_OFFSET, rt2x00dev->freq_offset);
 	rt2800_rfcsr_write(rt2x00dev, 23, rfcsr);
-- 
cgit 


From 1dc254ac9f04f23d332ed8eea79055f067c90627 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Wed, 9 Oct 2013 11:00:38 +0200
Subject: rt2x00: use generic EWMA functions for average RSSI calculations

Remove the local MOVING_AVERAGE implementation, and use
the generic EWMA functions instead.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/Kconfig      |  1 +
 drivers/net/wireless/rt2x00/rt2x00.h     | 16 ++------
 drivers/net/wireless/rt2x00/rt2x00link.c | 70 ++++++++++++--------------------
 3 files changed, 29 insertions(+), 58 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/Kconfig b/drivers/net/wireless/rt2x00/Kconfig
index 68dbbb9c6d12..a18b0051a745 100644
--- a/drivers/net/wireless/rt2x00/Kconfig
+++ b/drivers/net/wireless/rt2x00/Kconfig
@@ -219,6 +219,7 @@ config RT2X00_LIB_USB
 
 config RT2X00_LIB
 	tristate
+	select AVERAGE
 
 config RT2X00_LIB_FIRMWARE
 	boolean
diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index fe4c572db52c..30ed92a6121e 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -39,6 +39,7 @@
 #include <linux/input-polldev.h>
 #include <linux/kfifo.h>
 #include <linux/hrtimer.h>
+#include <linux/average.h>
 
 #include <net/mac80211.h>
 
@@ -138,17 +139,6 @@
 #define SHORT_EIFS		( SIFS + SHORT_DIFS + \
 				  GET_DURATION(IEEE80211_HEADER + ACK_SIZE, 10) )
 
-/*
- * Structure for average calculation
- * The avg field contains the actual average value,
- * but avg_weight is internally used during calculations
- * to prevent rounding errors.
- */
-struct avg_val {
-	int avg;
-	int avg_weight;
-};
-
 enum rt2x00_chip_intf {
 	RT2X00_CHIP_INTF_PCI,
 	RT2X00_CHIP_INTF_PCIE,
@@ -297,7 +287,7 @@ struct link_ant {
 	 * Similar to the avg_rssi in the link_qual structure
 	 * this value is updated by using the walking average.
 	 */
-	struct avg_val rssi_ant;
+	struct ewma rssi_ant;
 };
 
 /*
@@ -326,7 +316,7 @@ struct link {
 	/*
 	 * Currently active average RSSI value
 	 */
-	struct avg_val avg_rssi;
+	struct ewma avg_rssi;
 
 	/*
 	 * Work structure for scheduling periodic link tuning.
diff --git a/drivers/net/wireless/rt2x00/rt2x00link.c b/drivers/net/wireless/rt2x00/rt2x00link.c
index 8368aab86f28..a0e3c021c128 100644
--- a/drivers/net/wireless/rt2x00/rt2x00link.c
+++ b/drivers/net/wireless/rt2x00/rt2x00link.c
@@ -35,50 +35,28 @@
  */
 #define DEFAULT_RSSI		-128
 
-/*
- * Helper struct and macro to work with moving/walking averages.
- * When adding a value to the average value the following calculation
- * is needed:
- *
- *        avg_rssi = ((avg_rssi * 7) + rssi) / 8;
- *
- * The advantage of this approach is that we only need 1 variable
- * to store the average in (No need for a count and a total).
- * But more importantly, normal average values will over time
- * move less and less towards newly added values this results
- * that with link tuning, the device can have a very good RSSI
- * for a few minutes but when the device is moved away from the AP
- * the average will not decrease fast enough to compensate.
- * The walking average compensates this and will move towards
- * the new values correctly allowing a effective link tuning,
- * the speed of the average moving towards other values depends
- * on the value for the number of samples. The higher the number
- * of samples, the slower the average will move.
- * We use two variables to keep track of the average value to
- * compensate for the rounding errors. This can be a significant
- * error (>5dBm) if the factor is too low.
- */
-#define AVG_SAMPLES	8
-#define AVG_FACTOR	1000
-#define MOVING_AVERAGE(__avg, __val) \
-({ \
-	struct avg_val __new; \
-	__new.avg_weight = \
-	    (__avg).avg_weight  ? \
-		((((__avg).avg_weight * ((AVG_SAMPLES) - 1)) + \
-		  ((__val) * (AVG_FACTOR))) / \
-		 (AVG_SAMPLES)) : \
-		((__val) * (AVG_FACTOR)); \
-	__new.avg = __new.avg_weight / (AVG_FACTOR); \
-	__new; \
-})
+/* Constants for EWMA calculations. */
+#define RT2X00_EWMA_FACTOR	1024
+#define RT2X00_EWMA_WEIGHT	8
+
+static inline int rt2x00link_get_avg_rssi(struct ewma *ewma)
+{
+	unsigned long avg;
+
+	avg = ewma_read(ewma);
+	if (avg)
+		return -avg;
+
+	return DEFAULT_RSSI;
+}
 
 static int rt2x00link_antenna_get_link_rssi(struct rt2x00_dev *rt2x00dev)
 {
 	struct link_ant *ant = &rt2x00dev->link.ant;
 
-	if (ant->rssi_ant.avg && rt2x00dev->link.qual.rx_success)
-		return ant->rssi_ant.avg;
+	if (rt2x00dev->link.qual.rx_success)
+		return rt2x00link_get_avg_rssi(&ant->rssi_ant);
+
 	return DEFAULT_RSSI;
 }
 
@@ -100,8 +78,8 @@ static void rt2x00link_antenna_update_rssi_history(struct rt2x00_dev *rt2x00dev,
 
 static void rt2x00link_antenna_reset(struct rt2x00_dev *rt2x00dev)
 {
-	rt2x00dev->link.ant.rssi_ant.avg = 0;
-	rt2x00dev->link.ant.rssi_ant.avg_weight = 0;
+	ewma_init(&rt2x00dev->link.ant.rssi_ant, RT2X00_EWMA_FACTOR,
+		  RT2X00_EWMA_WEIGHT);
 }
 
 static void rt2x00lib_antenna_diversity_sample(struct rt2x00_dev *rt2x00dev)
@@ -249,12 +227,12 @@ void rt2x00link_update_stats(struct rt2x00_dev *rt2x00dev,
 	/*
 	 * Update global RSSI
 	 */
-	link->avg_rssi = MOVING_AVERAGE(link->avg_rssi, rxdesc->rssi);
+	ewma_add(&link->avg_rssi, -rxdesc->rssi);
 
 	/*
 	 * Update antenna RSSI
 	 */
-	ant->rssi_ant = MOVING_AVERAGE(ant->rssi_ant, rxdesc->rssi);
+	ewma_add(&ant->rssi_ant, -rxdesc->rssi);
 }
 
 void rt2x00link_start_tuner(struct rt2x00_dev *rt2x00dev)
@@ -309,6 +287,8 @@ void rt2x00link_reset_tuner(struct rt2x00_dev *rt2x00dev, bool antenna)
 	 */
 	rt2x00dev->link.count = 0;
 	memset(qual, 0, sizeof(*qual));
+	ewma_init(&rt2x00dev->link.avg_rssi, RT2X00_EWMA_FACTOR,
+		  RT2X00_EWMA_WEIGHT);
 
 	/*
 	 * Restore the VGC level as stored in the registers,
@@ -363,10 +343,10 @@ static void rt2x00link_tuner(struct work_struct *work)
 	 * collect the RSSI data we could use this. Otherwise we
 	 * must fallback to the default RSSI value.
 	 */
-	if (!link->avg_rssi.avg || !qual->rx_success)
+	if (!qual->rx_success)
 		qual->rssi = DEFAULT_RSSI;
 	else
-		qual->rssi = link->avg_rssi.avg;
+		qual->rssi = rt2x00link_get_avg_rssi(&link->avg_rssi);
 
 	/*
 	 * Check if link tuning is supported by the hardware, some hardware
-- 
cgit 


From 0beb1bbf19c72f17809e42b8f33522a55c2cc18c Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 3 Oct 2013 20:00:40 +0200
Subject: rt2x00: rt2800lib: fix VGC adjustment for RT5592

In commit 3d81535ea5940446510a8a5cee1c6ad23c90c753
(rt2800: 5592: add chip specific vgc calculations)
the rt2800_link_tuner function has been modified to
adjust VGC level for the RT5592 chipset.

On the RT5592 chipset, the VGC level must be adjusted
only if rssi is greater than -65. However the current
code adjusts the VGC value by 0x10 regardless of the
actual chipset if the rssi value is between -80 and
-65.

Fix the broken behaviour by reordering the if-else
statements.

Cc: stable@vger.kernel.org
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800lib.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 5a230c42fb0d..be68b0485833 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -4478,10 +4478,13 @@ void rt2800_link_tuner(struct rt2x00_dev *rt2x00dev, struct link_qual *qual,
 
 	vgc = rt2800_get_default_vgc(rt2x00dev);
 
-	if (rt2x00_rt(rt2x00dev, RT5592) && qual->rssi > -65)
-		vgc += 0x20;
-	else if (qual->rssi > -80)
-		vgc += 0x10;
+	if (rt2x00_rt(rt2x00dev, RT5592)) {
+		if (qual->rssi > -65)
+			vgc += 0x20;
+	} else {
+		if (qual->rssi > -80)
+			vgc += 0x10;
+	}
 
 	rt2800_set_vgc(rt2x00dev, qual, vgc);
 }
-- 
cgit 


From e25aa82a89db9e3b09d02b5481aa375c7712a10d Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 3 Oct 2013 20:00:41 +0200
Subject: rt2x00: rt2800lib: fix VGC adjustment for RT3572 and RT3593

The Ralink DPO_RT5572_LinuxSTA_2.6.1.3_20121022
reference driver uses different RSSI threshold
and VGC adjustment values for the RT3572 and
RT3593 chipsets.

Update the rt2800_link_tuner function to use the
same values. Also change the comment in the function
to make it more generic.

References:

  RT35xx_ChipAGCAdjust function in chips/rt35xx.c
  RSSI_FOR_MID_LOW_SENSIBILITY constant in include/chip/rtmp_phy.h
  RT3593_R66_MID_LOW_SENS_GET macro in include/chip/rt3593.h
  RT3593_R66_NON_MID_LOW_SEMS_GET macro in include/chips/rt3593.h

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800lib.c | 25 ++++++++++++++++++++-----
 1 file changed, 20 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index be68b0485833..a114cab413e9 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -4471,19 +4471,34 @@ void rt2800_link_tuner(struct rt2x00_dev *rt2x00dev, struct link_qual *qual,
 
 	if (rt2x00_rt_rev(rt2x00dev, RT2860, REV_RT2860C))
 		return;
-	/*
-	 * When RSSI is better then -80 increase VGC level with 0x10, except
-	 * for rt5592 chip.
+
+	/* When RSSI is better than a certain threshold, increase VGC
+	 * with a chip specific value in order to improve the balance
+	 * between sensibility and noise isolation.
 	 */
 
 	vgc = rt2800_get_default_vgc(rt2x00dev);
 
-	if (rt2x00_rt(rt2x00dev, RT5592)) {
+	switch (rt2x00dev->chip.rt) {
+	case RT3572:
+	case RT3593:
+		if (qual->rssi > -65) {
+			if (rt2x00dev->curr_band == IEEE80211_BAND_2GHZ)
+				vgc += 0x20;
+			else
+				vgc += 0x10;
+		}
+		break;
+
+	case RT5592:
 		if (qual->rssi > -65)
 			vgc += 0x20;
-	} else {
+		break;
+
+	default:
 		if (qual->rssi > -80)
 			vgc += 0x10;
+		break;
 	}
 
 	rt2800_set_vgc(rt2x00dev, qual, vgc);
-- 
cgit 


From cf9eb39c6f7b42fdf9aa6f1af28780b2522a847a Mon Sep 17 00:00:00 2001
From: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Date: Thu, 10 Oct 2013 17:19:17 +0300
Subject: spi: Fix modalias for ACPI enumerated SPI devices

There is a minor fault about ACPI enumerated SPI devices with their modalias
attribute. Now modalias is set by device instance not by hardware ID.
For example "spi:INTABCD:00", "spi:INTABCD:01" etc.

This means each device instance gets different modalias which does match
with generated modules.alias. Currently this is not problem as matching can
happen also with "acpi:INTABCD" modalias.

Fix this by using ACPI hardware ID.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 9e039c60c068..e57e9acd75cb 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1025,7 +1025,7 @@ static acpi_status acpi_spi_add_device(acpi_handle handle, u32 level,
 		return AE_OK;
 	}
 
-	strlcpy(spi->modalias, dev_name(&adev->dev), sizeof(spi->modalias));
+	strlcpy(spi->modalias, acpi_device_hid(adev), sizeof(spi->modalias));
 	if (spi_add_device(spi)) {
 		dev_err(&master->dev, "failed to add SPI device %s from ACPI\n",
 			dev_name(&adev->dev));
-- 
cgit 


From 85a1f77716cf546d9b9c42e2848b5712f51ba1ee Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Sat, 21 Sep 2013 18:06:02 -0400
Subject: random: mix in architectural randomness earlier in extract_buf()

Previously if CPU chip had a built-in random number generator (i.e.,
RDRAND on newer x86 chips), we mixed it in at the very end of
extract_buf() using an XOR operation.

We now mix it in right after the calculate a hash across the entire
pool.  This has the advantage that any contribution of entropy from
the CPU's HWRNG will get mixed back into the pool.  In addition, it
means that if the HWRNG has any defects (either accidentally or
maliciously introduced), this will be mitigated via the non-linear
transform of the SHA-1 hash function before we hand out generated
output.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 drivers/char/random.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 2d5daf9b58e9..54d020815b4e 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -904,7 +904,7 @@ static void extract_buf(struct entropy_store *r, __u8 *out)
 	int i;
 	union {
 		__u32 w[5];
-		unsigned long l[LONGS(EXTRACT_SIZE)];
+		unsigned long l[LONGS(20)];
 	} hash;
 	__u32 workspace[SHA_WORKSPACE_WORDS];
 	__u8 extract[64];
@@ -916,6 +916,17 @@ static void extract_buf(struct entropy_store *r, __u8 *out)
 	for (i = 0; i < r->poolinfo->poolwords; i += 16)
 		sha_transform(hash.w, (__u8 *)(r->pool + i), workspace);
 
+	/*
+	 * If we have a architectural hardware random number
+	 * generator, mix that in, too.
+	 */
+	for (i = 0; i < LONGS(20); i++) {
+		unsigned long v;
+		if (!arch_get_random_long(&v))
+			break;
+		hash.l[i] ^= v;
+	}
+
 	/*
 	 * We mix the hash back into the pool to prevent backtracking
 	 * attacks (where the attacker knows the state of the pool
@@ -945,17 +956,6 @@ static void extract_buf(struct entropy_store *r, __u8 *out)
 	hash.w[1] ^= hash.w[4];
 	hash.w[2] ^= rol32(hash.w[2], 16);
 
-	/*
-	 * If we have a architectural hardware random number
-	 * generator, mix that in, too.
-	 */
-	for (i = 0; i < LONGS(EXTRACT_SIZE); i++) {
-		unsigned long v;
-		if (!arch_get_random_long(&v))
-			break;
-		hash.l[i] ^= v;
-	}
-
 	memcpy(out, &hash, EXTRACT_SIZE);
 	memset(&hash, 0, sizeof(hash));
 }
-- 
cgit 


From 9ed17b70b409dc48c134a80b5a6df582ba759de2 Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@linux.intel.com>
Date: Tue, 10 Sep 2013 23:16:17 -0400
Subject: random: statically compute poolbitshift, poolbytes, poolbits

Use a macro to statically compute poolbitshift (will be used in a
subsequent patch), poolbytes, and poolbits.  On virtually all
architectures the cost of a memory load with an offset is the same as
the one of a memory load.

It is still possible for this to generate worse code since the C
compiler doesn't know the fixed relationship between these fields, but
that is somewhat unlikely.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---
 drivers/char/random.c | 39 +++++++++++++++++++--------------------
 1 file changed, 19 insertions(+), 20 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 54d020815b4e..20651a2fd8a7 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -309,46 +309,45 @@ static DEFINE_PER_CPU(int, trickle_count);
  * scaled squared error sum) except for the last tap, which is 1 to
  * get the twisting happening as fast as possible.
  */
+
 static struct poolinfo {
-	int poolwords;
+	int poolbitshift, poolwords, poolbytes, poolbits;
+#define S(x) ilog2(x)+5, (x), (x)*4, (x)*32
 	int tap1, tap2, tap3, tap4, tap5;
 } poolinfo_table[] = {
 	/* x^128 + x^103 + x^76 + x^51 +x^25 + x + 1 -- 105 */
-	{ 128,	103,	76,	51,	25,	1 },
+	{ S(128),	103,	76,	51,	25,	1 },
 	/* x^32 + x^26 + x^20 + x^14 + x^7 + x + 1 -- 15 */
-	{ 32,	26,	20,	14,	7,	1 },
+	{ S(32),	26,	20,	14,	7,	1 },
 #if 0
 	/* x^2048 + x^1638 + x^1231 + x^819 + x^411 + x + 1  -- 115 */
-	{ 2048,	1638,	1231,	819,	411,	1 },
+	{ S(2048),	1638,	1231,	819,	411,	1 },
 
 	/* x^1024 + x^817 + x^615 + x^412 + x^204 + x + 1 -- 290 */
-	{ 1024,	817,	615,	412,	204,	1 },
+	{ S(1024),	817,	615,	412,	204,	1 },
 
 	/* x^1024 + x^819 + x^616 + x^410 + x^207 + x^2 + 1 -- 115 */
-	{ 1024,	819,	616,	410,	207,	2 },
+	{ S(1024),	819,	616,	410,	207,	2 },
 
 	/* x^512 + x^411 + x^308 + x^208 + x^104 + x + 1 -- 225 */
-	{ 512,	411,	308,	208,	104,	1 },
+	{ S(512),	411,	308,	208,	104,	1 },
 
 	/* x^512 + x^409 + x^307 + x^206 + x^102 + x^2 + 1 -- 95 */
-	{ 512,	409,	307,	206,	102,	2 },
+	{ S(512),	409,	307,	206,	102,	2 },
 	/* x^512 + x^409 + x^309 + x^205 + x^103 + x^2 + 1 -- 95 */
-	{ 512,	409,	309,	205,	103,	2 },
+	{ S(512),	409,	309,	205,	103,	2 },
 
 	/* x^256 + x^205 + x^155 + x^101 + x^52 + x + 1 -- 125 */
-	{ 256,	205,	155,	101,	52,	1 },
+	{ S(256),	205,	155,	101,	52,	1 },
 
 	/* x^128 + x^103 + x^78 + x^51 + x^27 + x^2 + 1 -- 70 */
-	{ 128,	103,	78,	51,	27,	2 },
+	{ S(128),	103,	78,	51,	27,	2 },
 
 	/* x^64 + x^52 + x^39 + x^26 + x^14 + x + 1 -- 15 */
-	{ 64,	52,	39,	26,	14,	1 },
+	{ S(64),	52,	39,	26,	14,	1 },
 #endif
 };
 
-#define POOLBITS	poolwords*32
-#define POOLBYTES	poolwords*4
-
 /*
  * For the purposes of better mixing, we use the CRC-32 polynomial as
  * well to make a twisted Generalized Feedback Shift Reigster
@@ -599,8 +598,8 @@ retry:
 	if (entropy_count < 0) {
 		DEBUG_ENT("negative entropy/overflow\n");
 		entropy_count = 0;
-	} else if (entropy_count > r->poolinfo->POOLBITS)
-		entropy_count = r->poolinfo->POOLBITS;
+	} else if (entropy_count > r->poolinfo->poolbits)
+		entropy_count = r->poolinfo->poolbits;
 	if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig)
 		goto retry;
 
@@ -815,7 +814,7 @@ static void xfer_secondary_pool(struct entropy_store *r, size_t nbytes)
 	__u32	tmp[OUTPUT_POOL_WORDS];
 
 	if (r->pull && r->entropy_count < nbytes * 8 &&
-	    r->entropy_count < r->poolinfo->POOLBITS) {
+	    r->entropy_count < r->poolinfo->poolbits) {
 		/* If we're limited, always leave two wakeup worth's BITS */
 		int rsvd = r->limit ? 0 : random_read_wakeup_thresh/4;
 		int bytes = nbytes;
@@ -857,7 +856,7 @@ static size_t account(struct entropy_store *r, size_t nbytes, int min,
 	/* Hold lock while accounting */
 	spin_lock_irqsave(&r->lock, flags);
 
-	BUG_ON(r->entropy_count > r->poolinfo->POOLBITS);
+	BUG_ON(r->entropy_count > r->poolinfo->poolbits);
 	DEBUG_ENT("trying to extract %zu bits from %s\n",
 		  nbytes * 8, r->name);
 
@@ -1112,7 +1111,7 @@ static void init_std_data(struct entropy_store *r)
 	r->entropy_total = 0;
 	r->last_data_init = false;
 	mix_pool_bytes(r, &now, sizeof(now), NULL);
-	for (i = r->poolinfo->POOLBYTES; i > 0; i -= sizeof(rv)) {
+	for (i = r->poolinfo->poolbytes; i > 0; i -= sizeof(rv)) {
 		if (!arch_get_random_long(&rv))
 			break;
 		mix_pool_bytes(r, &rv, sizeof(rv), NULL);
-- 
cgit 


From a283b5c459784f9762a74c312b134e9a524f5a5f Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Tue, 10 Sep 2013 23:16:17 -0400
Subject: random: allow fractional bits to be tracked

Allow fractional bits of entropy to be tracked by scaling the entropy
counter (fixed point).  This will be used in a subsequent patch that
accounts for entropy lost due to overwrites.

[ Modified by tytso to fix up a few missing places where the
  entropy_count wasn't properly converted from fractional bits to
  bits. ]

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
---
 drivers/char/random.c | 138 +++++++++++++++++++++++++++++++++-----------------
 1 file changed, 92 insertions(+), 46 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 20651a2fd8a7..c2957656c5bc 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -279,6 +279,15 @@
 
 #define LONGS(x) (((x) + sizeof(unsigned long) - 1)/sizeof(unsigned long))
 
+/*
+ * To allow fractional bits to be tracked, the following fields contain
+ * this many fractional bits:
+ *
+ * entropy_count, trickle_thresh
+ */
+#define ENTROPY_SHIFT 3
+#define ENTROPY_BITS(r) ((r)->entropy_count >> ENTROPY_SHIFT)
+
 /*
  * The minimum number of bits of entropy before we wake up a read on
  * /dev/random.  Should be enough to do a significant reseed.
@@ -296,8 +305,7 @@ static int random_write_wakeup_thresh = 128;
  * When the input pool goes over trickle_thresh, start dropping most
  * samples to avoid wasting CPU time and reduce lock contention.
  */
-
-static int trickle_thresh __read_mostly = INPUT_POOL_WORDS * 28;
+static const int trickle_thresh = (INPUT_POOL_WORDS * 28) << ENTROPY_SHIFT;
 
 static DEFINE_PER_CPU(int, trickle_count);
 
@@ -311,8 +319,8 @@ static DEFINE_PER_CPU(int, trickle_count);
  */
 
 static struct poolinfo {
-	int poolbitshift, poolwords, poolbytes, poolbits;
-#define S(x) ilog2(x)+5, (x), (x)*4, (x)*32
+	int poolbitshift, poolwords, poolbytes, poolbits, poolfracbits;
+#define S(x) ilog2(x)+5, (x), (x)*4, (x)*32, (x) << (ENTROPY_SHIFT+5)
 	int tap1, tap2, tap3, tap4, tap5;
 } poolinfo_table[] = {
 	/* x^128 + x^103 + x^76 + x^51 +x^25 + x + 1 -- 105 */
@@ -581,7 +589,9 @@ static void fast_mix(struct fast_pool *f, const void *in, int nbytes)
 }
 
 /*
- * Credit (or debit) the entropy store with n bits of entropy
+ * Credit (or debit) the entropy store with n bits of entropy.
+ * Use credit_entropy_bits_safe() if the value comes from userspace
+ * or otherwise should be checked for extreme values.
  */
 static void credit_entropy_bits(struct entropy_store *r, int nbits)
 {
@@ -593,13 +603,13 @@ static void credit_entropy_bits(struct entropy_store *r, int nbits)
 	DEBUG_ENT("added %d entropy credits to %s\n", nbits, r->name);
 retry:
 	entropy_count = orig = ACCESS_ONCE(r->entropy_count);
-	entropy_count += nbits;
+	entropy_count += nbits << ENTROPY_SHIFT;
 
 	if (entropy_count < 0) {
 		DEBUG_ENT("negative entropy/overflow\n");
 		entropy_count = 0;
-	} else if (entropy_count > r->poolinfo->poolbits)
-		entropy_count = r->poolinfo->poolbits;
+	} else if (entropy_count > r->poolinfo->poolfracbits)
+		entropy_count = r->poolinfo->poolfracbits;
 	if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig)
 		goto retry;
 
@@ -609,16 +619,29 @@ retry:
 			r->initialized = 1;
 	}
 
-	trace_credit_entropy_bits(r->name, nbits, entropy_count,
+	trace_credit_entropy_bits(r->name, nbits,
+				  entropy_count >> ENTROPY_SHIFT,
 				  r->entropy_total, _RET_IP_);
 
 	/* should we wake readers? */
-	if (r == &input_pool && entropy_count >= random_read_wakeup_thresh) {
+	if (r == &input_pool &&
+	    (entropy_count >> ENTROPY_SHIFT) >= random_read_wakeup_thresh) {
 		wake_up_interruptible(&random_read_wait);
 		kill_fasync(&fasync, SIGIO, POLL_IN);
 	}
 }
 
+static void credit_entropy_bits_safe(struct entropy_store *r, int nbits)
+{
+	const int nbits_max = (int)(~0U >> (ENTROPY_SHIFT + 1));
+
+	/* Cap the value to avoid overflows */
+	nbits = min(nbits,  nbits_max);
+	nbits = max(nbits, -nbits_max);
+
+	credit_entropy_bits(r, nbits);
+}
+
 /*********************************************************************
  *
  * Entropy input management
@@ -674,7 +697,7 @@ static void add_timer_randomness(struct timer_rand_state *state, unsigned num)
 
 	preempt_disable();
 	/* if over the trickle threshold, use only 1 in 4096 samples */
-	if (input_pool.entropy_count > trickle_thresh &&
+	if (ENTROPY_BITS(&input_pool) > trickle_thresh &&
 	    ((__this_cpu_inc_return(trickle_count) - 1) & 0xfff))
 		goto out;
 
@@ -813,8 +836,9 @@ static void xfer_secondary_pool(struct entropy_store *r, size_t nbytes)
 {
 	__u32	tmp[OUTPUT_POOL_WORDS];
 
-	if (r->pull && r->entropy_count < nbytes * 8 &&
-	    r->entropy_count < r->poolinfo->poolbits) {
+	if (r->pull &&
+	    r->entropy_count < (nbytes << (ENTROPY_SHIFT + 3)) &&
+	    r->entropy_count < r->poolinfo->poolfracbits) {
 		/* If we're limited, always leave two wakeup worth's BITS */
 		int rsvd = r->limit ? 0 : random_read_wakeup_thresh/4;
 		int bytes = nbytes;
@@ -826,7 +850,8 @@ static void xfer_secondary_pool(struct entropy_store *r, size_t nbytes)
 
 		DEBUG_ENT("going to reseed %s with %d bits "
 			  "(%zu of %d requested)\n",
-			  r->name, bytes * 8, nbytes * 8, r->entropy_count);
+			  r->name, bytes * 8, nbytes * 8,
+			  r->entropy_count >> ENTROPY_SHIFT);
 
 		bytes = extract_entropy(r->pull, tmp, bytes,
 					random_read_wakeup_thresh / 8, rsvd);
@@ -852,41 +877,44 @@ static size_t account(struct entropy_store *r, size_t nbytes, int min,
 {
 	unsigned long flags;
 	int wakeup_write = 0;
+	int have_bytes;
+	int entropy_count, orig;
+	size_t ibytes;
 
 	/* Hold lock while accounting */
 	spin_lock_irqsave(&r->lock, flags);
 
-	BUG_ON(r->entropy_count > r->poolinfo->poolbits);
+	BUG_ON(r->entropy_count > r->poolinfo->poolfracbits);
 	DEBUG_ENT("trying to extract %zu bits from %s\n",
 		  nbytes * 8, r->name);
 
 	/* Can we pull enough? */
-	if (r->entropy_count / 8 < min + reserved) {
-		nbytes = 0;
-	} else {
-		int entropy_count, orig;
 retry:
-		entropy_count = orig = ACCESS_ONCE(r->entropy_count);
+	entropy_count = orig = ACCESS_ONCE(r->entropy_count);
+	have_bytes = entropy_count >> (ENTROPY_SHIFT + 3);
+	ibytes = nbytes;
+	if (have_bytes < min + reserved) {
+		ibytes = 0;
+	} else {
 		/* If limited, never pull more than available */
-		if (r->limit && nbytes + reserved >= entropy_count / 8)
-			nbytes = entropy_count/8 - reserved;
-
-		if (entropy_count / 8 >= nbytes + reserved) {
-			entropy_count -= nbytes*8;
-			if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig)
-				goto retry;
-		} else {
-			entropy_count = reserved;
-			if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig)
-				goto retry;
-		}
+		if (r->limit && ibytes + reserved >= have_bytes)
+			ibytes = have_bytes - reserved;
+
+		if (have_bytes >= ibytes + reserved)
+			entropy_count -= ibytes << (ENTROPY_SHIFT + 3);
+		else
+			entropy_count = reserved << (ENTROPY_SHIFT + 3);
 
-		if (entropy_count < random_write_wakeup_thresh)
+		if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig)
+			goto retry;
+
+		if ((r->entropy_count >> ENTROPY_SHIFT)
+		    < random_write_wakeup_thresh)
 			wakeup_write = 1;
 	}
 
 	DEBUG_ENT("debiting %zu entropy credits from %s%s\n",
-		  nbytes * 8, r->name, r->limit ? "" : " (unlimited)");
+		  ibytes * 8, r->name, r->limit ? "" : " (unlimited)");
 
 	spin_unlock_irqrestore(&r->lock, flags);
 
@@ -895,7 +923,7 @@ retry:
 		kill_fasync(&fasync, SIGIO, POLL_OUT);
 	}
 
-	return nbytes;
+	return ibytes;
 }
 
 static void extract_buf(struct entropy_store *r, __u8 *out)
@@ -973,7 +1001,7 @@ static ssize_t extract_entropy(struct entropy_store *r, void *buf,
 			r->last_data_init = true;
 			spin_unlock_irqrestore(&r->lock, flags);
 			trace_extract_entropy(r->name, EXTRACT_SIZE,
-					      r->entropy_count, _RET_IP_);
+					      ENTROPY_BITS(r), _RET_IP_);
 			xfer_secondary_pool(r, EXTRACT_SIZE);
 			extract_buf(r, tmp);
 			spin_lock_irqsave(&r->lock, flags);
@@ -982,7 +1010,7 @@ static ssize_t extract_entropy(struct entropy_store *r, void *buf,
 		spin_unlock_irqrestore(&r->lock, flags);
 	}
 
-	trace_extract_entropy(r->name, nbytes, r->entropy_count, _RET_IP_);
+	trace_extract_entropy(r->name, nbytes, ENTROPY_BITS(r), _RET_IP_);
 	xfer_secondary_pool(r, nbytes);
 	nbytes = account(r, nbytes, min, reserved);
 
@@ -1015,7 +1043,7 @@ static ssize_t extract_entropy_user(struct entropy_store *r, void __user *buf,
 	ssize_t ret = 0, i;
 	__u8 tmp[EXTRACT_SIZE];
 
-	trace_extract_entropy_user(r->name, nbytes, r->entropy_count, _RET_IP_);
+	trace_extract_entropy_user(r->name, nbytes, ENTROPY_BITS(r), _RET_IP_);
 	xfer_secondary_pool(r, nbytes);
 	nbytes = account(r, nbytes, 0, 0);
 
@@ -1187,8 +1215,8 @@ random_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
 			DEBUG_ENT("sleeping?\n");
 
 			wait_event_interruptible(random_read_wait,
-				input_pool.entropy_count >=
-						 random_read_wakeup_thresh);
+				ENTROPY_BITS(&input_pool) >=
+				random_read_wakeup_thresh);
 
 			DEBUG_ENT("awake\n");
 
@@ -1224,9 +1252,9 @@ random_poll(struct file *file, poll_table * wait)
 	poll_wait(file, &random_read_wait, wait);
 	poll_wait(file, &random_write_wait, wait);
 	mask = 0;
-	if (input_pool.entropy_count >= random_read_wakeup_thresh)
+	if (ENTROPY_BITS(&input_pool) >= random_read_wakeup_thresh)
 		mask |= POLLIN | POLLRDNORM;
-	if (input_pool.entropy_count < random_write_wakeup_thresh)
+	if (ENTROPY_BITS(&input_pool) < random_write_wakeup_thresh)
 		mask |= POLLOUT | POLLWRNORM;
 	return mask;
 }
@@ -1277,7 +1305,8 @@ static long random_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
 	switch (cmd) {
 	case RNDGETENTCNT:
 		/* inherently racy, no point locking */
-		if (put_user(input_pool.entropy_count, p))
+		ent_count = ENTROPY_BITS(&input_pool);
+		if (put_user(ent_count, p))
 			return -EFAULT;
 		return 0;
 	case RNDADDTOENTCNT:
@@ -1285,7 +1314,7 @@ static long random_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
 			return -EPERM;
 		if (get_user(ent_count, p))
 			return -EFAULT;
-		credit_entropy_bits(&input_pool, ent_count);
+		credit_entropy_bits_safe(&input_pool, ent_count);
 		return 0;
 	case RNDADDENTROPY:
 		if (!capable(CAP_SYS_ADMIN))
@@ -1300,7 +1329,7 @@ static long random_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
 				    size);
 		if (retval < 0)
 			return retval;
-		credit_entropy_bits(&input_pool, ent_count);
+		credit_entropy_bits_safe(&input_pool, ent_count);
 		return 0;
 	case RNDZAPENTCNT:
 	case RNDCLEARPOOL:
@@ -1407,6 +1436,23 @@ static int proc_do_uuid(struct ctl_table *table, int write,
 	return proc_dostring(&fake_table, write, buffer, lenp, ppos);
 }
 
+/*
+ * Return entropy available scaled to integral bits
+ */
+static int proc_do_entropy(ctl_table *table, int write,
+			   void __user *buffer, size_t *lenp, loff_t *ppos)
+{
+	ctl_table fake_table;
+	int entropy_count;
+
+	entropy_count = *(int *)table->data >> ENTROPY_SHIFT;
+
+	fake_table.data = &entropy_count;
+	fake_table.maxlen = sizeof(entropy_count);
+
+	return proc_dointvec(&fake_table, write, buffer, lenp, ppos);
+}
+
 static int sysctl_poolsize = INPUT_POOL_WORDS * 32;
 extern struct ctl_table random_table[];
 struct ctl_table random_table[] = {
@@ -1421,7 +1467,7 @@ struct ctl_table random_table[] = {
 		.procname	= "entropy_avail",
 		.maxlen		= sizeof(int),
 		.mode		= 0444,
-		.proc_handler	= proc_dointvec,
+		.proc_handler	= proc_do_entropy,
 		.data		= &input_pool.entropy_count,
 	},
 	{
-- 
cgit 


From 30e37ec516ae5a6957596de7661673c615c82ea4 Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@linux.intel.com>
Date: Tue, 10 Sep 2013 23:16:17 -0400
Subject: random: account for entropy loss due to overwrites
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

When we write entropy into a non-empty pool, we currently don't
account at all for the fact that we will probabilistically overwrite
some of the entropy in that pool.  This means that unless the pool is
fully empty, we are currently *guaranteed* to overestimate the amount
of entropy in the pool!

Assuming Shannon entropy with zero correlations we end up with an
exponentally decaying value of new entropy added:

	entropy <- entropy + (pool_size - entropy) *
		(1 - exp(-add_entropy/pool_size))

However, calculations involving fractional exponentials are not
practical in the kernel, so apply a piecewise linearization:

	  For add_entropy <= pool_size/2 then

	  (1 - exp(-add_entropy/pool_size)) >= (add_entropy/pool_size)*0.7869...

	  ... so we can approximate the exponential with
	  3/4*add_entropy/pool_size and still be on the
	  safe side by adding at most pool_size/2 at a time.

In order for the loop not to take arbitrary amounts of time if a bad
ioctl is received, terminate if we are within one bit of full.  This
way the loop is guaranteed to terminate after no more than
log2(poolsize) iterations, no matter what the input value is.  The
vast majority of the time the loop will be executed exactly once.

The piecewise linearization is very conservative, approaching 3/4 of
the usable input value for small inputs, however, our entropy
estimation is pretty weak at best, especially for small values; we
have no handle on correlation; and the Shannon entropy measure (Rényi
entropy of order 1) is not the correct one to use in the first place,
but rather the correct entropy measure is the min-entropy, the Rényi
entropy of infinite order.

As such, this conservatism seems more than justified.

This does introduce fractional bit values.  I have left it to have 3
bits of fraction, so that with a pool of 2^12 bits the multiply in
credit_entropy_bits() can still fit into an int, as 2*(3+12) < 31.  It
is definitely possible to allow for more fractional accounting, but
that multiply then would have to be turned into a 32*32 -> 64 multiply.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Cc: DJ Johnston <dj.johnston@intel.com>
---
 drivers/char/random.c | 60 ++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 52 insertions(+), 8 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index c2957656c5bc..867b823e7fea 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -272,10 +272,12 @@
 /*
  * Configuration information
  */
-#define INPUT_POOL_WORDS 128
-#define OUTPUT_POOL_WORDS 32
-#define SEC_XFER_SIZE 512
-#define EXTRACT_SIZE 10
+#define INPUT_POOL_SHIFT	12
+#define INPUT_POOL_WORDS	(1 << (INPUT_POOL_SHIFT-5))
+#define OUTPUT_POOL_SHIFT	10
+#define OUTPUT_POOL_WORDS	(1 << (OUTPUT_POOL_SHIFT-5))
+#define SEC_XFER_SIZE		512
+#define EXTRACT_SIZE		10
 
 #define LONGS(x) (((x) + sizeof(unsigned long) - 1)/sizeof(unsigned long))
 
@@ -284,6 +286,9 @@
  * this many fractional bits:
  *
  * entropy_count, trickle_thresh
+ *
+ * 2*(ENTROPY_SHIFT + log2(poolbits)) must <= 31, or the multiply in
+ * credit_entropy_bits() needs to be 64 bits wide.
  */
 #define ENTROPY_SHIFT 3
 #define ENTROPY_BITS(r) ((r)->entropy_count >> ENTROPY_SHIFT)
@@ -427,7 +432,7 @@ module_param(debug, bool, 0644);
 struct entropy_store;
 struct entropy_store {
 	/* read-only data: */
-	struct poolinfo *poolinfo;
+	const struct poolinfo *poolinfo;
 	__u32 *pool;
 	const char *name;
 	struct entropy_store *pull;
@@ -596,6 +601,8 @@ static void fast_mix(struct fast_pool *f, const void *in, int nbytes)
 static void credit_entropy_bits(struct entropy_store *r, int nbits)
 {
 	int entropy_count, orig;
+	const int pool_size = r->poolinfo->poolfracbits;
+	int nfrac = nbits << ENTROPY_SHIFT;
 
 	if (!nbits)
 		return;
@@ -603,13 +610,50 @@ static void credit_entropy_bits(struct entropy_store *r, int nbits)
 	DEBUG_ENT("added %d entropy credits to %s\n", nbits, r->name);
 retry:
 	entropy_count = orig = ACCESS_ONCE(r->entropy_count);
-	entropy_count += nbits << ENTROPY_SHIFT;
+	if (nfrac < 0) {
+		/* Debit */
+		entropy_count += nfrac;
+	} else {
+		/*
+		 * Credit: we have to account for the possibility of
+		 * overwriting already present entropy.	 Even in the
+		 * ideal case of pure Shannon entropy, new contributions
+		 * approach the full value asymptotically:
+		 *
+		 * entropy <- entropy + (pool_size - entropy) *
+		 *	(1 - exp(-add_entropy/pool_size))
+		 *
+		 * For add_entropy <= pool_size/2 then
+		 * (1 - exp(-add_entropy/pool_size)) >=
+		 *    (add_entropy/pool_size)*0.7869...
+		 * so we can approximate the exponential with
+		 * 3/4*add_entropy/pool_size and still be on the
+		 * safe side by adding at most pool_size/2 at a time.
+		 *
+		 * The use of pool_size-2 in the while statement is to
+		 * prevent rounding artifacts from making the loop
+		 * arbitrarily long; this limits the loop to log2(pool_size)*2
+		 * turns no matter how large nbits is.
+		 */
+		int pnfrac = nfrac;
+		const int s = r->poolinfo->poolbitshift + ENTROPY_SHIFT + 2;
+		/* The +2 corresponds to the /4 in the denominator */
+
+		do {
+			unsigned int anfrac = min(pnfrac, pool_size/2);
+			unsigned int add =
+				((pool_size - entropy_count)*anfrac*3) >> s;
+
+			entropy_count += add;
+			pnfrac -= anfrac;
+		} while (unlikely(entropy_count < pool_size-2 && pnfrac));
+	}
 
 	if (entropy_count < 0) {
 		DEBUG_ENT("negative entropy/overflow\n");
 		entropy_count = 0;
-	} else if (entropy_count > r->poolinfo->poolfracbits)
-		entropy_count = r->poolinfo->poolfracbits;
+	} else if (entropy_count > pool_size)
+		entropy_count = pool_size;
 	if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig)
 		goto retry;
 
-- 
cgit 


From 5910895f0e868d4f70303922ed00ccdc328b3c30 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Thu, 12 Sep 2013 14:10:25 -0400
Subject: random: fix the tracepoint for get_random_bytes(_arch)

Fix a problem where get_random_bytes_arch() was calling the tracepoint
get_random_bytes().  So add a new tracepoint for
get_random_bytes_arch(), and make get_random_bytes() and
get_random_bytes_arch() call their correct tracepoint.

Also, add a new tracepoint for add_device_randomness()

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 drivers/char/random.c         |  4 +++-
 include/trace/events/random.h | 33 ++++++++++++++++++++++++++++++++-
 2 files changed, 35 insertions(+), 2 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 867b823e7fea..80b58774e891 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -711,6 +711,7 @@ void add_device_randomness(const void *buf, unsigned int size)
 {
 	unsigned long time = random_get_entropy() ^ jiffies;
 
+	trace_add_device_randomness(size, _RET_IP_);
 	mix_pool_bytes(&input_pool, buf, size, NULL);
 	mix_pool_bytes(&input_pool, &time, sizeof(time), NULL);
 	mix_pool_bytes(&nonblocking_pool, buf, size, NULL);
@@ -1127,6 +1128,7 @@ static ssize_t extract_entropy_user(struct entropy_store *r, void __user *buf,
  */
 void get_random_bytes(void *buf, int nbytes)
 {
+	trace_get_random_bytes(nbytes, _RET_IP_);
 	extract_entropy(&nonblocking_pool, buf, nbytes, 0, 0);
 }
 EXPORT_SYMBOL(get_random_bytes);
@@ -1145,7 +1147,7 @@ void get_random_bytes_arch(void *buf, int nbytes)
 {
 	char *p = buf;
 
-	trace_get_random_bytes(nbytes, _RET_IP_);
+	trace_get_random_bytes_arch(nbytes, _RET_IP_);
 	while (nbytes) {
 		unsigned long v;
 		int chunk = min(nbytes, (int)sizeof(unsigned long));
diff --git a/include/trace/events/random.h b/include/trace/events/random.h
index 422df19de732..2ffcaec5860a 100644
--- a/include/trace/events/random.h
+++ b/include/trace/events/random.h
@@ -7,6 +7,25 @@
 #include <linux/writeback.h>
 #include <linux/tracepoint.h>
 
+TRACE_EVENT(add_device_randomness,
+	TP_PROTO(int bytes, unsigned long IP),
+
+	TP_ARGS(bytes, IP),
+
+	TP_STRUCT__entry(
+		__field(	  int,	bytes			)
+		__field(unsigned long,	IP			)
+	),
+
+	TP_fast_assign(
+		__entry->bytes		= bytes;
+		__entry->IP		= IP;
+	),
+
+	TP_printk("bytes %d caller %pF",
+		__entry->bytes, (void *)__entry->IP)
+);
+
 DECLARE_EVENT_CLASS(random__mix_pool_bytes,
 	TP_PROTO(const char *pool_name, int bytes, unsigned long IP),
 
@@ -68,7 +87,7 @@ TRACE_EVENT(credit_entropy_bits,
 		  (void *)__entry->IP)
 );
 
-TRACE_EVENT(get_random_bytes,
+DECLARE_EVENT_CLASS(random__get_random_bytes,
 	TP_PROTO(int nbytes, unsigned long IP),
 
 	TP_ARGS(nbytes, IP),
@@ -86,6 +105,18 @@ TRACE_EVENT(get_random_bytes,
 	TP_printk("nbytes %d caller %pF", __entry->nbytes, (void *)__entry->IP)
 );
 
+DEFINE_EVENT(random__get_random_bytes, get_random_bytes,
+	TP_PROTO(int nbytes, unsigned long IP),
+
+	TP_ARGS(nbytes, IP)
+);
+
+DEFINE_EVENT(random__get_random_bytes, get_random_bytes_arch,
+	TP_PROTO(int nbytes, unsigned long IP),
+
+	TP_ARGS(nbytes, IP)
+);
+
 DECLARE_EVENT_CLASS(random__extract_entropy,
 	TP_PROTO(const char *pool_name, int nbytes, int entropy_count,
 		 unsigned long IP),
-- 
cgit 


From 3ef4cb2d65ee13d84140cbede8e1980c6ae49ffd Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Thu, 12 Sep 2013 14:27:22 -0400
Subject: random: optimize spinlock use in add_device_randomness()

The add_device_randomness() function calls mix_pool_bytes() twice for
the input pool and the non-blocking pool, for a total of four times.
By using _mix_pool_byte() and taking the spinlock in
add_device_randomness(), we can halve the number of times we need
take each pool's spinlock.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 drivers/char/random.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 80b58774e891..89eb5a8dec82 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -710,12 +710,18 @@ struct timer_rand_state {
 void add_device_randomness(const void *buf, unsigned int size)
 {
 	unsigned long time = random_get_entropy() ^ jiffies;
+	unsigned long flags;
 
 	trace_add_device_randomness(size, _RET_IP_);
-	mix_pool_bytes(&input_pool, buf, size, NULL);
-	mix_pool_bytes(&input_pool, &time, sizeof(time), NULL);
-	mix_pool_bytes(&nonblocking_pool, buf, size, NULL);
-	mix_pool_bytes(&nonblocking_pool, &time, sizeof(time), NULL);
+	spin_lock_irqsave(&input_pool.lock, flags);
+	_mix_pool_bytes(&input_pool, buf, size, NULL);
+	_mix_pool_bytes(&input_pool, &time, sizeof(time), NULL);
+	spin_unlock_irqrestore(&input_pool.lock, flags);
+
+	spin_lock_irqsave(&nonblocking_pool.lock, flags);
+	_mix_pool_bytes(&nonblocking_pool, buf, size, NULL);
+	_mix_pool_bytes(&nonblocking_pool, &time, sizeof(time), NULL);
+	spin_unlock_irqrestore(&nonblocking_pool.lock, flags);
 }
 EXPORT_SYMBOL(add_device_randomness);
 
-- 
cgit 


From c59974aea43fd292a0784dbf7b3d7347e2caf4e9 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Sat, 21 Sep 2013 19:42:41 -0400
Subject: random: optimize the entropy_store structure

Use smaller types to slightly shrink the size of the entropy store
structure.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 drivers/char/random.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 89eb5a8dec82..b8809d4ae186 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -436,16 +436,16 @@ struct entropy_store {
 	__u32 *pool;
 	const char *name;
 	struct entropy_store *pull;
-	int limit;
 
 	/* read-write data: */
 	spinlock_t lock;
-	unsigned add_ptr;
-	unsigned input_rotate;
+	unsigned short add_ptr;
+	unsigned short input_rotate;
 	int entropy_count;
 	int entropy_total;
 	unsigned int initialized:1;
-	bool last_data_init;
+	unsigned int limit:1;
+	unsigned int last_data_init:1;
 	__u8 last_data[EXTRACT_SIZE];
 };
 
@@ -513,7 +513,7 @@ static void _mix_pool_bytes(struct entropy_store *r, const void *in,
 
 	/* mix one byte at a time to simplify size handling and churn faster */
 	while (nbytes--) {
-		w = rol32(*bytes++, input_rotate & 31);
+		w = rol32(*bytes++, input_rotate);
 		i = (i - 1) & wordmask;
 
 		/* XOR in the various taps */
@@ -533,7 +533,7 @@ static void _mix_pool_bytes(struct entropy_store *r, const void *in,
 		 * rotation, so that successive passes spread the
 		 * input bits across the pool evenly.
 		 */
-		input_rotate += i ? 7 : 14;
+		input_rotate = (input_rotate + (i ? 7 : 14)) & 31;
 	}
 
 	ACCESS_ONCE(r->input_rotate) = input_rotate;
@@ -1049,7 +1049,7 @@ static ssize_t extract_entropy(struct entropy_store *r, void *buf,
 	if (fips_enabled) {
 		spin_lock_irqsave(&r->lock, flags);
 		if (!r->last_data_init) {
-			r->last_data_init = true;
+			r->last_data_init = 1;
 			spin_unlock_irqrestore(&r->lock, flags);
 			trace_extract_entropy(r->name, EXTRACT_SIZE,
 					      ENTROPY_BITS(r), _RET_IP_);
@@ -1189,7 +1189,7 @@ static void init_std_data(struct entropy_store *r)
 
 	r->entropy_count = 0;
 	r->entropy_total = 0;
-	r->last_data_init = false;
+	r->last_data_init = 0;
 	mix_pool_bytes(r, &now, sizeof(now), NULL);
 	for (i = r->poolinfo->poolbytes; i > 0; i -= sizeof(rv)) {
 		if (!arch_get_random_long(&rv))
-- 
cgit 


From f5c2742c23886e707f062881c5f206c1fc704782 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Sun, 22 Sep 2013 15:14:32 -0400
Subject: random: cap the rate which the /dev/urandom pool gets reseeded

In order to avoid draining the input pool of its entropy at too high
of a rate, enforce a minimum time interval between reseedings of the
urandom pool.  This is set to 60 seconds by default.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 drivers/char/random.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index b8809d4ae186..a68b4a093272 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -306,6 +306,13 @@ static int random_read_wakeup_thresh = 64;
  */
 static int random_write_wakeup_thresh = 128;
 
+/*
+ * The minimum number of seconds between urandom pool resending.  We
+ * do this to limit the amount of entropy that can be drained from the
+ * input pool even if there are heavy demands on /dev/urandom.
+ */
+static int random_min_urandom_seed = 60;
+
 /*
  * When the input pool goes over trickle_thresh, start dropping most
  * samples to avoid wasting CPU time and reduce lock contention.
@@ -438,6 +445,7 @@ struct entropy_store {
 	struct entropy_store *pull;
 
 	/* read-write data: */
+	unsigned long last_pulled;
 	spinlock_t lock;
 	unsigned short add_ptr;
 	unsigned short input_rotate;
@@ -887,6 +895,14 @@ static void xfer_secondary_pool(struct entropy_store *r, size_t nbytes)
 {
 	__u32	tmp[OUTPUT_POOL_WORDS];
 
+	if (r->limit == 0 && random_min_urandom_seed) {
+		unsigned long now = jiffies;
+
+		if (time_before(now,
+				r->last_pulled + random_min_urandom_seed * HZ))
+			return;
+		r->last_pulled = now;
+	}
 	if (r->pull &&
 	    r->entropy_count < (nbytes << (ENTROPY_SHIFT + 3)) &&
 	    r->entropy_count < r->poolinfo->poolfracbits) {
@@ -1190,6 +1206,7 @@ static void init_std_data(struct entropy_store *r)
 	r->entropy_count = 0;
 	r->entropy_total = 0;
 	r->last_data_init = 0;
+	r->last_pulled = jiffies;
 	mix_pool_bytes(r, &now, sizeof(now), NULL);
 	for (i = r->poolinfo->poolbytes; i > 0; i -= sizeof(rv)) {
 		if (!arch_get_random_long(&rv))
@@ -1540,6 +1557,13 @@ struct ctl_table random_table[] = {
 		.extra1		= &min_write_thresh,
 		.extra2		= &max_write_thresh,
 	},
+	{
+		.procname	= "urandom_min_reseed_secs",
+		.data		= &random_min_urandom_seed,
+		.maxlen		= sizeof(int),
+		.mode		= 0644,
+		.proc_handler	= proc_dointvec,
+	},
 	{
 		.procname	= "boot_id",
 		.data		= &sysctl_bootid,
-- 
cgit 


From 655b226470b229552ad95b21323864df9bd9fc74 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Sun, 22 Sep 2013 15:24:02 -0400
Subject: random: speed up the fast_mix function by a factor of four
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

By mixing the entropy in chunks of 32-bit words instead of byte by
byte, we can speed up the fast_mix function significantly.  Since it
is called on every single interrupt, on systems with a very heavy
interrupt load, this can make a noticeable difference.

Also fix a compilation warning in add_interrupt_randomness() and avoid
xor'ing cycles and jiffies together just in case we have an
architecture which tries to define random_get_entropy() by returning
jiffies.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reported-by: Jörn Engel <joern@logfs.org>
---
 drivers/char/random.c | 50 ++++++++++++++++++++++++++++----------------------
 1 file changed, 28 insertions(+), 22 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index a68b4a093272..74eeec58e779 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -584,21 +584,26 @@ struct fast_pool {
  * collector.  It's hardcoded for an 128 bit pool and assumes that any
  * locks that might be needed are taken by the caller.
  */
-static void fast_mix(struct fast_pool *f, const void *in, int nbytes)
+static void fast_mix(struct fast_pool *f, __u32 input[4])
 {
-	const char	*bytes = in;
 	__u32		w;
-	unsigned	i = f->count;
 	unsigned	input_rotate = f->rotate;
 
-	while (nbytes--) {
-		w = rol32(*bytes++, input_rotate & 31) ^ f->pool[i & 3] ^
-			f->pool[(i + 1) & 3];
-		f->pool[i & 3] = (w >> 3) ^ twist_table[w & 7];
-		input_rotate += (i++ & 3) ? 7 : 14;
-	}
-	f->count = i;
+	w = rol32(input[0], input_rotate) ^ f->pool[0] ^ f->pool[3];
+	f->pool[0] = (w >> 3) ^ twist_table[w & 7];
+	input_rotate = (input_rotate + 14) & 31;
+	w = rol32(input[1], input_rotate) ^ f->pool[1] ^ f->pool[0];
+	f->pool[1] = (w >> 3) ^ twist_table[w & 7];
+	input_rotate = (input_rotate + 7) & 31;
+	w = rol32(input[2], input_rotate) ^ f->pool[2] ^ f->pool[1];
+	f->pool[2] = (w >> 3) ^ twist_table[w & 7];
+	input_rotate = (input_rotate + 7) & 31;
+	w = rol32(input[3], input_rotate) ^ f->pool[3] ^ f->pool[2];
+	f->pool[3] = (w >> 3) ^ twist_table[w & 7];
+	input_rotate = (input_rotate + 7) & 31;
+
 	f->rotate = input_rotate;
+	f->count++;
 }
 
 /*
@@ -828,20 +833,21 @@ void add_interrupt_randomness(int irq, int irq_flags)
 	struct fast_pool	*fast_pool = &__get_cpu_var(irq_randomness);
 	struct pt_regs		*regs = get_irq_regs();
 	unsigned long		now = jiffies;
-	__u32			input[4], cycles = random_get_entropy();
-
-	input[0] = cycles ^ jiffies;
-	input[1] = irq;
-	if (regs) {
-		__u64 ip = instruction_pointer(regs);
-		input[2] = ip;
-		input[3] = ip >> 32;
-	}
+	cycles_t		cycles = random_get_entropy();
+	__u32			input[4], c_high, j_high;
+	__u64			ip;
+
+	c_high = (sizeof(cycles) > 4) ? cycles >> 32 : 0;
+	j_high = (sizeof(now) > 4) ? now >> 32 : 0;
+	input[0] = cycles ^ j_high ^ irq;
+	input[1] = now ^ c_high;
+	ip = regs ? instruction_pointer(regs) : _RET_IP_;
+	input[2] = ip;
+	input[3] = ip >> 32;
 
-	fast_mix(fast_pool, input, sizeof(input));
+	fast_mix(fast_pool, input);
 
-	if ((fast_pool->count & 1023) &&
-	    !time_after(now, fast_pool->last + HZ))
+	if ((fast_pool->count & 63) && !time_after(now, fast_pool->last + HZ))
 		return;
 
 	fast_pool->last = now;
-- 
cgit 


From 6e9fa2c8a630e6d0882828012431038abce285b9 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Sun, 22 Sep 2013 16:04:19 -0400
Subject: random: adjust the generator polynomials in the mixing function
 slightly

Our mixing functions were analyzed by Lacharme, Roeck, Strubel, and
Videau in their paper, "The Linux Pseudorandom Number Generator
Revisited" (see: http://eprint.iacr.org/2012/251.pdf).

They suggested a slight change to improve our mixing functions
slightly.  I also adjusted the comments to better explain what is
going on, and to document why the polynomials were changed.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 drivers/char/random.c | 103 ++++++++++++++++++++++++--------------------------
 1 file changed, 49 insertions(+), 54 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 74eeec58e779..7ae7ea65da68 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -322,23 +322,61 @@ static const int trickle_thresh = (INPUT_POOL_WORDS * 28) << ENTROPY_SHIFT;
 static DEFINE_PER_CPU(int, trickle_count);
 
 /*
- * A pool of size .poolwords is stirred with a primitive polynomial
- * of degree .poolwords over GF(2).  The taps for various sizes are
- * defined below.  They are chosen to be evenly spaced (minimum RMS
- * distance from evenly spaced; the numbers in the comments are a
- * scaled squared error sum) except for the last tap, which is 1 to
- * get the twisting happening as fast as possible.
+ * Originally, we used a primitive polynomial of degree .poolwords
+ * over GF(2).  The taps for various sizes are defined below.  They
+ * were chosen to be evenly spaced except for the last tap, which is 1
+ * to get the twisting happening as fast as possible.
+ *
+ * For the purposes of better mixing, we use the CRC-32 polynomial as
+ * well to make a (modified) twisted Generalized Feedback Shift
+ * Register.  (See M. Matsumoto & Y. Kurita, 1992.  Twisted GFSR
+ * generators.  ACM Transactions on Modeling and Computer Simulation
+ * 2(3):179-194.  Also see M. Matsumoto & Y. Kurita, 1994.  Twisted
+ * GFSR generators II.  ACM Transactions on Mdeling and Computer
+ * Simulation 4:254-266)
+ *
+ * Thanks to Colin Plumb for suggesting this.
+ *
+ * The mixing operation is much less sensitive than the output hash,
+ * where we use SHA-1.  All that we want of mixing operation is that
+ * it be a good non-cryptographic hash; i.e. it not produce collisions
+ * when fed "random" data of the sort we expect to see.  As long as
+ * the pool state differs for different inputs, we have preserved the
+ * input entropy and done a good job.  The fact that an intelligent
+ * attacker can construct inputs that will produce controlled
+ * alterations to the pool's state is not important because we don't
+ * consider such inputs to contribute any randomness.  The only
+ * property we need with respect to them is that the attacker can't
+ * increase his/her knowledge of the pool's state.  Since all
+ * additions are reversible (knowing the final state and the input,
+ * you can reconstruct the initial state), if an attacker has any
+ * uncertainty about the initial state, he/she can only shuffle that
+ * uncertainty about, but never cause any collisions (which would
+ * decrease the uncertainty).
+ *
+ * Our mixing functions were analyzed by Lacharme, Roeck, Strubel, and
+ * Videau in their paper, "The Linux Pseudorandom Number Generator
+ * Revisited" (see: http://eprint.iacr.org/2012/251.pdf).  In their
+ * paper, they point out that we are not using a true Twisted GFSR,
+ * since Matsumoto & Kurita used a trinomial feedback polynomial (that
+ * is, with only three taps, instead of the six that we are using).
+ * As a result, the resulting polynomial is neither primitive nor
+ * irreducible, and hence does not have a maximal period over
+ * GF(2**32).  They suggest a slight change to the generator
+ * polynomial which improves the resulting TGFSR polynomial to be
+ * irreducible, which we have made here.
  */
-
 static struct poolinfo {
 	int poolbitshift, poolwords, poolbytes, poolbits, poolfracbits;
 #define S(x) ilog2(x)+5, (x), (x)*4, (x)*32, (x) << (ENTROPY_SHIFT+5)
 	int tap1, tap2, tap3, tap4, tap5;
 } poolinfo_table[] = {
-	/* x^128 + x^103 + x^76 + x^51 +x^25 + x + 1 -- 105 */
-	{ S(128),	103,	76,	51,	25,	1 },
-	/* x^32 + x^26 + x^20 + x^14 + x^7 + x + 1 -- 15 */
-	{ S(32),	26,	20,	14,	7,	1 },
+	/* was: x^128 + x^103 + x^76 + x^51 +x^25 + x + 1 */
+	/* x^128 + x^104 + x^76 + x^51 +x^25 + x + 1 */
+	{ S(128),	104,	76,	51,	25,	1 },
+	/* was: x^32 + x^26 + x^20 + x^14 + x^7 + x + 1 */
+	/* x^32 + x^26 + x^19 + x^14 + x^7 + x + 1 */
+	{ S(32),	26,	19,	14,	7,	1 },
 #if 0
 	/* x^2048 + x^1638 + x^1231 + x^819 + x^411 + x + 1  -- 115 */
 	{ S(2048),	1638,	1231,	819,	411,	1 },
@@ -368,49 +406,6 @@ static struct poolinfo {
 #endif
 };
 
-/*
- * For the purposes of better mixing, we use the CRC-32 polynomial as
- * well to make a twisted Generalized Feedback Shift Reigster
- *
- * (See M. Matsumoto & Y. Kurita, 1992.  Twisted GFSR generators.  ACM
- * Transactions on Modeling and Computer Simulation 2(3):179-194.
- * Also see M. Matsumoto & Y. Kurita, 1994.  Twisted GFSR generators
- * II.  ACM Transactions on Mdeling and Computer Simulation 4:254-266)
- *
- * Thanks to Colin Plumb for suggesting this.
- *
- * We have not analyzed the resultant polynomial to prove it primitive;
- * in fact it almost certainly isn't.  Nonetheless, the irreducible factors
- * of a random large-degree polynomial over GF(2) are more than large enough
- * that periodicity is not a concern.
- *
- * The input hash is much less sensitive than the output hash.  All
- * that we want of it is that it be a good non-cryptographic hash;
- * i.e. it not produce collisions when fed "random" data of the sort
- * we expect to see.  As long as the pool state differs for different
- * inputs, we have preserved the input entropy and done a good job.
- * The fact that an intelligent attacker can construct inputs that
- * will produce controlled alterations to the pool's state is not
- * important because we don't consider such inputs to contribute any
- * randomness.  The only property we need with respect to them is that
- * the attacker can't increase his/her knowledge of the pool's state.
- * Since all additions are reversible (knowing the final state and the
- * input, you can reconstruct the initial state), if an attacker has
- * any uncertainty about the initial state, he/she can only shuffle
- * that uncertainty about, but never cause any collisions (which would
- * decrease the uncertainty).
- *
- * The chosen system lets the state of the pool be (essentially) the input
- * modulo the generator polymnomial.  Now, for random primitive polynomials,
- * this is a universal class of hash functions, meaning that the chance
- * of a collision is limited by the attacker's knowledge of the generator
- * polynomail, so if it is chosen at random, an attacker can never force
- * a collision.  Here, we use a fixed polynomial, but we *can* assume that
- * ###--> it is unknown to the processes generating the input entropy. <-###
- * Because of this important property, this is a good, collision-resistant
- * hash; hash collisions will occur no more often than chance.
- */
-
 /*
  * Static global variables
  */
-- 
cgit 


From 95b709b6be49e4ff3933ef6a5b5e623de2713a71 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Wed, 2 Oct 2013 21:10:35 -0400
Subject: random: drop trickle mode

The add_timer_randomness() used to drop into trickle mode when entropy
pool was estimated to be 87.5% full.  This was important when
add_timer_randomness() was used to sample interrupts.  It's not used
for this any more --- add_interrupt_randomness() now uses fast_mix()
instead.  By elimitating trickle mode, it allows us to fully utilize
entropy provided by add_input_randomness() and add_disk_randomness()
even when the input pool is above the old trickle threshold of 87.5%.

This helps to answer the criticism in [1] in their hypothetical
scenario where our entropy estimator was inaccurate, even though the
measurements in [2] seem to indicate that our entropy estimator given
real-life entropy collection is actually pretty good, albeit on the
conservative side (which was as it was designed).

[1] http://eprint.iacr.org/2013/338.pdf
[2] http://eprint.iacr.org/2012/251.pdf

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 drivers/char/random.c | 19 ++-----------------
 1 file changed, 2 insertions(+), 17 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 7ae7ea65da68..6da3f250804c 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -282,10 +282,8 @@
 #define LONGS(x) (((x) + sizeof(unsigned long) - 1)/sizeof(unsigned long))
 
 /*
- * To allow fractional bits to be tracked, the following fields contain
- * this many fractional bits:
- *
- * entropy_count, trickle_thresh
+ * To allow fractional bits to be tracked, the entropy_count field is
+ * denominated in units of 1/8th bits.
  *
  * 2*(ENTROPY_SHIFT + log2(poolbits)) must <= 31, or the multiply in
  * credit_entropy_bits() needs to be 64 bits wide.
@@ -313,14 +311,6 @@ static int random_write_wakeup_thresh = 128;
  */
 static int random_min_urandom_seed = 60;
 
-/*
- * When the input pool goes over trickle_thresh, start dropping most
- * samples to avoid wasting CPU time and reduce lock contention.
- */
-static const int trickle_thresh = (INPUT_POOL_WORDS * 28) << ENTROPY_SHIFT;
-
-static DEFINE_PER_CPU(int, trickle_count);
-
 /*
  * Originally, we used a primitive polynomial of degree .poolwords
  * over GF(2).  The taps for various sizes are defined below.  They
@@ -755,10 +745,6 @@ static void add_timer_randomness(struct timer_rand_state *state, unsigned num)
 	long delta, delta2, delta3;
 
 	preempt_disable();
-	/* if over the trickle threshold, use only 1 in 4096 samples */
-	if (ENTROPY_BITS(&input_pool) > trickle_thresh &&
-	    ((__this_cpu_inc_return(trickle_count) - 1) & 0xfff))
-		goto out;
 
 	sample.jiffies = jiffies;
 	sample.cycles = random_get_entropy();
@@ -800,7 +786,6 @@ static void add_timer_randomness(struct timer_rand_state *state, unsigned num)
 		credit_entropy_bits(&input_pool,
 				    min_t(int, fls(delta>>1), 11));
 	}
-out:
 	preempt_enable();
 }
 
-- 
cgit 


From 6265e169cd313d6f3aad3c33d0a5b0d9624f69f5 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Thu, 3 Oct 2013 01:08:15 -0400
Subject: random: push extra entropy to the output pools

As the input pool gets filled, start transfering entropy to the output
pools until they get filled.  This allows us to use the output pools
to store more system entropy.  Waste not, want not....

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 drivers/char/random.c         | 118 ++++++++++++++++++++++++++++++------------
 include/trace/events/random.h |  22 ++++++++
 2 files changed, 108 insertions(+), 32 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 6da3f250804c..84c576ec20e9 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -255,6 +255,7 @@
 #include <linux/fips.h>
 #include <linux/ptrace.h>
 #include <linux/kmemcheck.h>
+#include <linux/workqueue.h>
 
 #ifdef CONFIG_GENERIC_HARDIRQS
 # include <linux/irq.h>
@@ -302,7 +303,7 @@ static int random_read_wakeup_thresh = 64;
  * should wake up processes which are selecting or polling on write
  * access to /dev/random.
  */
-static int random_write_wakeup_thresh = 128;
+static int random_write_wakeup_thresh = 28 * OUTPUT_POOL_WORDS;
 
 /*
  * The minimum number of seconds between urandom pool resending.  We
@@ -428,6 +429,7 @@ struct entropy_store {
 	__u32 *pool;
 	const char *name;
 	struct entropy_store *pull;
+	struct work_struct push_work;
 
 	/* read-write data: */
 	unsigned long last_pulled;
@@ -442,6 +444,7 @@ struct entropy_store {
 	__u8 last_data[EXTRACT_SIZE];
 };
 
+static void push_to_pool(struct work_struct *work);
 static __u32 input_pool_data[INPUT_POOL_WORDS];
 static __u32 blocking_pool_data[OUTPUT_POOL_WORDS];
 static __u32 nonblocking_pool_data[OUTPUT_POOL_WORDS];
@@ -460,7 +463,9 @@ static struct entropy_store blocking_pool = {
 	.limit = 1,
 	.pull = &input_pool,
 	.lock = __SPIN_LOCK_UNLOCKED(blocking_pool.lock),
-	.pool = blocking_pool_data
+	.pool = blocking_pool_data,
+	.push_work = __WORK_INITIALIZER(blocking_pool.push_work,
+					push_to_pool),
 };
 
 static struct entropy_store nonblocking_pool = {
@@ -468,7 +473,9 @@ static struct entropy_store nonblocking_pool = {
 	.name = "nonblocking",
 	.pull = &input_pool,
 	.lock = __SPIN_LOCK_UNLOCKED(nonblocking_pool.lock),
-	.pool = nonblocking_pool_data
+	.pool = nonblocking_pool_data,
+	.push_work = __WORK_INITIALIZER(nonblocking_pool.push_work,
+					push_to_pool),
 };
 
 static __u32 const twist_table[8] = {
@@ -655,21 +662,48 @@ retry:
 	if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig)
 		goto retry;
 
+	r->entropy_total += nbits;
 	if (!r->initialized && nbits > 0) {
-		r->entropy_total += nbits;
-		if (r->entropy_total > 128)
+		if (r->entropy_total > 128) {
 			r->initialized = 1;
+			r->entropy_total = 0;
+		}
 	}
 
 	trace_credit_entropy_bits(r->name, nbits,
 				  entropy_count >> ENTROPY_SHIFT,
 				  r->entropy_total, _RET_IP_);
 
-	/* should we wake readers? */
-	if (r == &input_pool &&
-	    (entropy_count >> ENTROPY_SHIFT) >= random_read_wakeup_thresh) {
-		wake_up_interruptible(&random_read_wait);
-		kill_fasync(&fasync, SIGIO, POLL_IN);
+	if (r == &input_pool) {
+		int entropy_bytes = entropy_count >> ENTROPY_SHIFT;
+
+		/* should we wake readers? */
+		if (entropy_bytes >= random_read_wakeup_thresh) {
+			wake_up_interruptible(&random_read_wait);
+			kill_fasync(&fasync, SIGIO, POLL_IN);
+		}
+		/* If the input pool is getting full, send some
+		 * entropy to the two output pools, flipping back and
+		 * forth between them, until the output pools are 75%
+		 * full.
+		 */
+		if (entropy_bytes > random_write_wakeup_thresh &&
+		    r->initialized &&
+		    r->entropy_total >= 2*random_read_wakeup_thresh) {
+			static struct entropy_store *last = &blocking_pool;
+			struct entropy_store *other = &blocking_pool;
+
+			if (last == &blocking_pool)
+				other = &nonblocking_pool;
+			if (other->entropy_count <=
+			    3 * other->poolinfo->poolfracbits / 4)
+				last = other;
+			if (last->entropy_count <=
+			    3 * last->poolinfo->poolfracbits / 4) {
+				schedule_work(&last->push_work);
+				r->entropy_total = 0;
+			}
+		}
 	}
 }
 
@@ -877,10 +911,9 @@ static ssize_t extract_entropy(struct entropy_store *r, void *buf,
  * from the primary pool to the secondary extraction pool. We make
  * sure we pull enough for a 'catastrophic reseed'.
  */
+static void _xfer_secondary_pool(struct entropy_store *r, size_t nbytes);
 static void xfer_secondary_pool(struct entropy_store *r, size_t nbytes)
 {
-	__u32	tmp[OUTPUT_POOL_WORDS];
-
 	if (r->limit == 0 && random_min_urandom_seed) {
 		unsigned long now = jiffies;
 
@@ -891,26 +924,47 @@ static void xfer_secondary_pool(struct entropy_store *r, size_t nbytes)
 	}
 	if (r->pull &&
 	    r->entropy_count < (nbytes << (ENTROPY_SHIFT + 3)) &&
-	    r->entropy_count < r->poolinfo->poolfracbits) {
-		/* If we're limited, always leave two wakeup worth's BITS */
-		int rsvd = r->limit ? 0 : random_read_wakeup_thresh/4;
-		int bytes = nbytes;
-
-		/* pull at least as many as BYTES as wakeup BITS */
-		bytes = max_t(int, bytes, random_read_wakeup_thresh / 8);
-		/* but never more than the buffer size */
-		bytes = min_t(int, bytes, sizeof(tmp));
-
-		DEBUG_ENT("going to reseed %s with %d bits "
-			  "(%zu of %d requested)\n",
-			  r->name, bytes * 8, nbytes * 8,
-			  r->entropy_count >> ENTROPY_SHIFT);
-
-		bytes = extract_entropy(r->pull, tmp, bytes,
-					random_read_wakeup_thresh / 8, rsvd);
-		mix_pool_bytes(r, tmp, bytes, NULL);
-		credit_entropy_bits(r, bytes*8);
-	}
+	    r->entropy_count < r->poolinfo->poolfracbits)
+		_xfer_secondary_pool(r, nbytes);
+}
+
+static void _xfer_secondary_pool(struct entropy_store *r, size_t nbytes)
+{
+	__u32	tmp[OUTPUT_POOL_WORDS];
+
+	/* For /dev/random's pool, always leave two wakeup worth's BITS */
+	int rsvd = r->limit ? 0 : random_read_wakeup_thresh/4;
+	int bytes = nbytes;
+
+	/* pull at least as many as BYTES as wakeup BITS */
+	bytes = max_t(int, bytes, random_read_wakeup_thresh / 8);
+	/* but never more than the buffer size */
+	bytes = min_t(int, bytes, sizeof(tmp));
+
+	DEBUG_ENT("going to reseed %s with %d bits (%zu of %d requested)\n",
+		  r->name, bytes * 8, nbytes * 8,
+		  r->entropy_count >> ENTROPY_SHIFT);
+
+	bytes = extract_entropy(r->pull, tmp, bytes,
+				random_read_wakeup_thresh / 8, rsvd);
+	mix_pool_bytes(r, tmp, bytes, NULL);
+	credit_entropy_bits(r, bytes*8);
+}
+
+/*
+ * Used as a workqueue function so that when the input pool is getting
+ * full, we can "spill over" some entropy to the output pools.  That
+ * way the output pools can store some of the excess entropy instead
+ * of letting it go to waste.
+ */
+static void push_to_pool(struct work_struct *work)
+{
+	struct entropy_store *r = container_of(work, struct entropy_store,
+					      push_work);
+	BUG_ON(!r);
+	_xfer_secondary_pool(r, random_read_wakeup_thresh/8);
+	trace_push_to_pool(r->name, r->entropy_count >> ENTROPY_SHIFT,
+			   r->pull->entropy_count >> ENTROPY_SHIFT);
 }
 
 /*
diff --git a/include/trace/events/random.h b/include/trace/events/random.h
index 2ffcaec5860a..527b5dc1b416 100644
--- a/include/trace/events/random.h
+++ b/include/trace/events/random.h
@@ -87,6 +87,28 @@ TRACE_EVENT(credit_entropy_bits,
 		  (void *)__entry->IP)
 );
 
+TRACE_EVENT(push_to_pool,
+	TP_PROTO(const char *pool_name, int pool_bits, int input_bits),
+
+	TP_ARGS(pool_name, pool_bits, input_bits),
+
+	TP_STRUCT__entry(
+		__field( const char *,	pool_name		)
+		__field(	  int,	pool_bits		)
+		__field(	  int,	input_bits		)
+	),
+
+	TP_fast_assign(
+		__entry->pool_name	= pool_name;
+		__entry->pool_bits	= pool_bits;
+		__entry->input_bits	= input_bits;
+	),
+
+	TP_printk("%s: pool_bits %d input_pool_bits %d",
+		  __entry->pool_name, __entry->pool_bits,
+		  __entry->input_bits)
+);
+
 DECLARE_EVENT_CLASS(random__get_random_bytes,
 	TP_PROTO(int nbytes, unsigned long IP),
 
-- 
cgit 


From f80bbd8b92987f55f26691cd53785c4a54622eb0 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Thu, 3 Oct 2013 12:02:37 -0400
Subject: random: convert DEBUG_ENT to tracepoints

Instead of using the random driver's ad-hoc DEBUG_ENT() mechanism, use
tracepoints instead.  This allows for a much more fine-grained control
of which debugging mechanism which a developer might need, and unifies
the debugging messages with all of the existing tracepoints.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 drivers/char/random.c         |  52 ++++++-----------
 include/trace/events/random.h | 128 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 144 insertions(+), 36 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 84c576ec20e9..f126bd2f69fe 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -404,17 +404,6 @@ static DECLARE_WAIT_QUEUE_HEAD(random_read_wait);
 static DECLARE_WAIT_QUEUE_HEAD(random_write_wait);
 static struct fasync_struct *fasync;
 
-static bool debug;
-module_param(debug, bool, 0644);
-#define DEBUG_ENT(fmt, arg...) do { \
-	if (debug) \
-		printk(KERN_DEBUG "random %04d %04d %04d: " \
-		fmt,\
-		input_pool.entropy_count,\
-		blocking_pool.entropy_count,\
-		nonblocking_pool.entropy_count,\
-		## arg); } while (0)
-
 /**********************************************************************
  *
  * OS independent entropy store.   Here are the functions which handle
@@ -612,7 +601,6 @@ static void credit_entropy_bits(struct entropy_store *r, int nbits)
 	if (!nbits)
 		return;
 
-	DEBUG_ENT("added %d entropy credits to %s\n", nbits, r->name);
 retry:
 	entropy_count = orig = ACCESS_ONCE(r->entropy_count);
 	if (nfrac < 0) {
@@ -655,7 +643,9 @@ retry:
 	}
 
 	if (entropy_count < 0) {
-		DEBUG_ENT("negative entropy/overflow\n");
+		pr_warn("random: negative entropy/overflow: pool %s count %d\n",
+			r->name, entropy_count);
+		WARN_ON(1);
 		entropy_count = 0;
 	} else if (entropy_count > pool_size)
 		entropy_count = pool_size;
@@ -832,10 +822,10 @@ void add_input_randomness(unsigned int type, unsigned int code,
 	if (value == last_value)
 		return;
 
-	DEBUG_ENT("input event\n");
 	last_value = value;
 	add_timer_randomness(&input_timer_state,
 			     (type << 4) ^ code ^ (code >> 4) ^ value);
+	trace_add_input_randomness(ENTROPY_BITS(&input_pool));
 }
 EXPORT_SYMBOL_GPL(add_input_randomness);
 
@@ -890,10 +880,8 @@ void add_disk_randomness(struct gendisk *disk)
 	if (!disk || !disk->random)
 		return;
 	/* first major is 1, so we get >= 0x200 here */
-	DEBUG_ENT("disk event %d:%d\n",
-		  MAJOR(disk_devt(disk)), MINOR(disk_devt(disk)));
-
 	add_timer_randomness(disk->random, 0x100 + disk_devt(disk));
+	trace_add_disk_randomness(disk_devt(disk), ENTROPY_BITS(&input_pool));
 }
 #endif
 
@@ -941,10 +929,8 @@ static void _xfer_secondary_pool(struct entropy_store *r, size_t nbytes)
 	/* but never more than the buffer size */
 	bytes = min_t(int, bytes, sizeof(tmp));
 
-	DEBUG_ENT("going to reseed %s with %d bits (%zu of %d requested)\n",
-		  r->name, bytes * 8, nbytes * 8,
-		  r->entropy_count >> ENTROPY_SHIFT);
-
+	trace_xfer_secondary_pool(r->name, bytes * 8, nbytes * 8,
+				  ENTROPY_BITS(r), ENTROPY_BITS(r->pull));
 	bytes = extract_entropy(r->pull, tmp, bytes,
 				random_read_wakeup_thresh / 8, rsvd);
 	mix_pool_bytes(r, tmp, bytes, NULL);
@@ -992,8 +978,6 @@ static size_t account(struct entropy_store *r, size_t nbytes, int min,
 	spin_lock_irqsave(&r->lock, flags);
 
 	BUG_ON(r->entropy_count > r->poolinfo->poolfracbits);
-	DEBUG_ENT("trying to extract %zu bits from %s\n",
-		  nbytes * 8, r->name);
 
 	/* Can we pull enough? */
 retry:
@@ -1019,12 +1003,9 @@ retry:
 		    < random_write_wakeup_thresh)
 			wakeup_write = 1;
 	}
-
-	DEBUG_ENT("debiting %zu entropy credits from %s%s\n",
-		  ibytes * 8, r->name, r->limit ? "" : " (unlimited)");
-
 	spin_unlock_irqrestore(&r->lock, flags);
 
+	trace_debit_entropy(r->name, 8 * ibytes);
 	if (wakeup_write) {
 		wake_up_interruptible(&random_write_wait);
 		kill_fasync(&fasync, SIGIO, POLL_OUT);
@@ -1303,8 +1284,6 @@ random_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
 		if (n > SEC_XFER_SIZE)
 			n = SEC_XFER_SIZE;
 
-		DEBUG_ENT("reading %zu bits\n", n*8);
-
 		n = extract_entropy_user(&blocking_pool, buf, n);
 
 		if (n < 0) {
@@ -1312,8 +1291,9 @@ random_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
 			break;
 		}
 
-		DEBUG_ENT("read got %zd bits (%zd still needed)\n",
-			  n*8, (nbytes-n)*8);
+		trace_random_read(n*8, (nbytes-n)*8,
+				  ENTROPY_BITS(&blocking_pool),
+				  ENTROPY_BITS(&input_pool));
 
 		if (n == 0) {
 			if (file->f_flags & O_NONBLOCK) {
@@ -1321,14 +1301,10 @@ random_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
 				break;
 			}
 
-			DEBUG_ENT("sleeping?\n");
-
 			wait_event_interruptible(random_read_wait,
 				ENTROPY_BITS(&input_pool) >=
 				random_read_wakeup_thresh);
 
-			DEBUG_ENT("awake\n");
-
 			if (signal_pending(current)) {
 				retval = -ERESTARTSYS;
 				break;
@@ -1350,7 +1326,11 @@ random_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
 static ssize_t
 urandom_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
 {
-	return extract_entropy_user(&nonblocking_pool, buf, nbytes);
+	int ret = extract_entropy_user(&nonblocking_pool, buf, nbytes);
+
+	trace_urandom_read(8 * nbytes, ENTROPY_BITS(&nonblocking_pool),
+			   ENTROPY_BITS(&input_pool));
+	return ret;
 }
 
 static unsigned int
diff --git a/include/trace/events/random.h b/include/trace/events/random.h
index 527b5dc1b416..805af6db41cc 100644
--- a/include/trace/events/random.h
+++ b/include/trace/events/random.h
@@ -109,6 +109,89 @@ TRACE_EVENT(push_to_pool,
 		  __entry->input_bits)
 );
 
+TRACE_EVENT(debit_entropy,
+	TP_PROTO(const char *pool_name, int debit_bits),
+
+	TP_ARGS(pool_name, debit_bits),
+
+	TP_STRUCT__entry(
+		__field( const char *,	pool_name		)
+		__field(	  int,	debit_bits		)
+	),
+
+	TP_fast_assign(
+		__entry->pool_name	= pool_name;
+		__entry->debit_bits	= debit_bits;
+	),
+
+	TP_printk("%s: debit_bits %d", __entry->pool_name,
+		  __entry->debit_bits)
+);
+
+TRACE_EVENT(add_input_randomness,
+	TP_PROTO(int input_bits),
+
+	TP_ARGS(input_bits),
+
+	TP_STRUCT__entry(
+		__field(	  int,	input_bits		)
+	),
+
+	TP_fast_assign(
+		__entry->input_bits	= input_bits;
+	),
+
+	TP_printk("input_pool_bits %d", __entry->input_bits)
+);
+
+TRACE_EVENT(add_disk_randomness,
+	TP_PROTO(dev_t dev, int input_bits),
+
+	TP_ARGS(dev, input_bits),
+
+	TP_STRUCT__entry(
+		__field(	dev_t,	dev			)
+		__field(	  int,	input_bits		)
+	),
+
+	TP_fast_assign(
+		__entry->dev		= dev;
+		__entry->input_bits	= input_bits;
+	),
+
+	TP_printk("dev %d,%d input_pool_bits %d", MAJOR(__entry->dev),
+		  MINOR(__entry->dev), __entry->input_bits)
+);
+
+TRACE_EVENT(xfer_secondary_pool,
+	TP_PROTO(const char *pool_name, int xfer_bits, int request_bits,
+		 int pool_entropy, int input_entropy),
+
+	TP_ARGS(pool_name, xfer_bits, request_bits, pool_entropy,
+		input_entropy),
+
+	TP_STRUCT__entry(
+		__field( const char *,	pool_name		)
+		__field(	  int,	xfer_bits		)
+		__field(	  int,	request_bits		)
+		__field(	  int,	pool_entropy		)
+		__field(	  int,	input_entropy		)
+	),
+
+	TP_fast_assign(
+		__entry->pool_name	= pool_name;
+		__entry->xfer_bits	= xfer_bits;
+		__entry->request_bits	= request_bits;
+		__entry->pool_entropy	= pool_entropy;
+		__entry->input_entropy	= input_entropy;
+	),
+
+	TP_printk("pool %s xfer_bits %d request_bits %d pool_entropy %d "
+		  "input_entropy %d", __entry->pool_name, __entry->xfer_bits,
+		  __entry->request_bits, __entry->pool_entropy,
+		  __entry->input_entropy)
+);
+
 DECLARE_EVENT_CLASS(random__get_random_bytes,
 	TP_PROTO(int nbytes, unsigned long IP),
 
@@ -179,7 +262,52 @@ DEFINE_EVENT(random__extract_entropy, extract_entropy_user,
 	TP_ARGS(pool_name, nbytes, entropy_count, IP)
 );
 
+TRACE_EVENT(random_read,
+	TP_PROTO(int got_bits, int need_bits, int pool_left, int input_left),
 
+	TP_ARGS(got_bits, need_bits, pool_left, input_left),
+
+	TP_STRUCT__entry(
+		__field(	  int,	got_bits		)
+		__field(	  int,	need_bits		)
+		__field(	  int,	pool_left		)
+		__field(	  int,	input_left		)
+	),
+
+	TP_fast_assign(
+		__entry->got_bits	= got_bits;
+		__entry->need_bits	= need_bits;
+		__entry->pool_left	= pool_left;
+		__entry->input_left	= input_left;
+	),
+
+	TP_printk("got_bits %d still_needed_bits %d "
+		  "blocking_pool_entropy_left %d input_entropy_left %d",
+		  __entry->got_bits, __entry->got_bits, __entry->pool_left,
+		  __entry->input_left)
+);
+
+TRACE_EVENT(urandom_read,
+	TP_PROTO(int got_bits, int pool_left, int input_left),
+
+	TP_ARGS(got_bits, pool_left, input_left),
+
+	TP_STRUCT__entry(
+		__field(	  int,	got_bits		)
+		__field(	  int,	pool_left		)
+		__field(	  int,	input_left		)
+	),
+
+	TP_fast_assign(
+		__entry->got_bits	= got_bits;
+		__entry->pool_left	= pool_left;
+		__entry->input_left	= input_left;
+	),
+
+	TP_printk("got_bits %d nonblocking_pool_entropy_left %d "
+		  "input_entropy_left %d", __entry->got_bits,
+		  __entry->pool_left, __entry->input_left)
+);
 
 #endif /* _TRACE_RANDOM_H */
 
-- 
cgit 


From b44084c2c822f99dd3f2334b288b7e463d222662 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 10 Oct 2013 00:04:37 -0700
Subject: inet: rename ir_loc_port to ir_num

In commit 634fb979e8f ("inet: includes a sock_common in request_sock")
I forgot that the two ports in sock_common do not have same byte order :

skc_dport is __be16 (network order), but skc_num is __u16 (host order)

So sparse complains because ir_loc_port (mapped into skc_num) is
considered as __u16 while it should be __be16

Let rename ir_loc_port to ireq->ir_num (analogy with inet->inet_num),
and perform appropriate htons/ntohs conversions.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/inet_sock.h          | 2 +-
 include/net/tcp.h                | 2 +-
 net/dccp/ipv6.c                  | 4 ++--
 net/dccp/minisocks.c             | 8 ++++----
 net/dccp/output.c                | 2 +-
 net/ipv4/inet_connection_sock.c  | 4 ++--
 net/ipv4/syncookies.c            | 8 ++++----
 net/ipv4/tcp_output.c            | 2 +-
 net/ipv6/inet6_connection_sock.c | 2 +-
 net/ipv6/syncookies.c            | 2 +-
 net/ipv6/tcp_ipv6.c              | 2 +-
 11 files changed, 19 insertions(+), 19 deletions(-)

diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index f91204442efa..06da91efbc83 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -72,7 +72,7 @@ struct inet_request_sock {
 	struct request_sock	req;
 #define ir_loc_addr		req.__req_common.skc_rcv_saddr
 #define ir_rmt_addr		req.__req_common.skc_daddr
-#define ir_loc_port		req.__req_common.skc_num
+#define ir_num			req.__req_common.skc_num
 #define ir_rmt_port		req.__req_common.skc_dport
 #define ir_v6_rmt_addr		req.__req_common.skc_v6_daddr
 #define ir_v6_loc_addr		req.__req_common.skc_v6_rcv_saddr
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 24a06161d174..1db3a016bff6 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1110,7 +1110,7 @@ static inline void tcp_openreq_init(struct request_sock *req,
 	ireq->acked = 0;
 	ireq->ecn_ok = 0;
 	ireq->ir_rmt_port = tcp_hdr(skb)->source;
-	ireq->ir_loc_port = tcp_hdr(skb)->dest;
+	ireq->ir_num = ntohs(tcp_hdr(skb)->dest);
 }
 
 void tcp_enter_memory_pressure(struct sock *sk);
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 5cc5b24a956e..4ac71ff7c2e4 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -231,7 +231,7 @@ static int dccp_v6_send_response(struct sock *sk, struct request_sock *req)
 	fl6.flowlabel = 0;
 	fl6.flowi6_oif = ireq->ir_iif;
 	fl6.fl6_dport = ireq->ir_rmt_port;
-	fl6.fl6_sport = ireq->ir_loc_port;
+	fl6.fl6_sport = htons(ireq->ir_num);
 	security_req_classify_flow(req, flowi6_to_flowi(&fl6));
 
 
@@ -509,7 +509,7 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
 		fl6.saddr = ireq->ir_v6_loc_addr;
 		fl6.flowi6_oif = sk->sk_bound_dev_if;
 		fl6.fl6_dport = ireq->ir_rmt_port;
-		fl6.fl6_sport = ireq->ir_loc_port;
+		fl6.fl6_sport = htons(ireq->ir_num);
 		security_sk_classify_flow(sk, flowi6_to_flowi(&fl6));
 
 		dst = ip6_dst_lookup_flow(sk, &fl6, final_p, false);
diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c
index 66afbcec2941..9e2f78bc1553 100644
--- a/net/dccp/minisocks.c
+++ b/net/dccp/minisocks.c
@@ -266,10 +266,10 @@ int dccp_reqsk_init(struct request_sock *req,
 {
 	struct dccp_request_sock *dreq = dccp_rsk(req);
 
-	inet_rsk(req)->ir_rmt_port	  = dccp_hdr(skb)->dccph_sport;
-	inet_rsk(req)->ir_loc_port	  = dccp_hdr(skb)->dccph_dport;
-	inet_rsk(req)->acked	  = 0;
-	dreq->dreq_timestamp_echo = 0;
+	inet_rsk(req)->ir_rmt_port = dccp_hdr(skb)->dccph_sport;
+	inet_rsk(req)->ir_num	   = ntohs(dccp_hdr(skb)->dccph_dport);
+	inet_rsk(req)->acked	   = 0;
+	dreq->dreq_timestamp_echo  = 0;
 
 	/* inherit feature negotiation options from listening socket */
 	return dccp_feat_clone_list(&dp->dccps_featneg, &dreq->dreq_featneg);
diff --git a/net/dccp/output.c b/net/dccp/output.c
index 9bf195d1b87a..8876078859da 100644
--- a/net/dccp/output.c
+++ b/net/dccp/output.c
@@ -424,7 +424,7 @@ struct sk_buff *dccp_make_response(struct sock *sk, struct dst_entry *dst,
 	/* Build and checksum header */
 	dh = dccp_zeroed_hdr(skb, dccp_header_size);
 
-	dh->dccph_sport	= inet_rsk(req)->ir_loc_port;
+	dh->dccph_sport	= htons(inet_rsk(req)->ir_num);
 	dh->dccph_dport	= inet_rsk(req)->ir_rmt_port;
 	dh->dccph_doff	= (dccp_header_size +
 			   DCCP_SKB_CB(skb)->dccpd_opt_len) / 4;
diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c
index 2ffd931d652f..fc0e649cc002 100644
--- a/net/ipv4/inet_connection_sock.c
+++ b/net/ipv4/inet_connection_sock.c
@@ -676,8 +676,8 @@ struct sock *inet_csk_clone_lock(const struct sock *sk,
 		newicsk->icsk_bind_hash = NULL;
 
 		inet_sk(newsk)->inet_dport = inet_rsk(req)->ir_rmt_port;
-		inet_sk(newsk)->inet_num = ntohs(inet_rsk(req)->ir_loc_port);
-		inet_sk(newsk)->inet_sport = inet_rsk(req)->ir_loc_port;
+		inet_sk(newsk)->inet_num = inet_rsk(req)->ir_num;
+		inet_sk(newsk)->inet_sport = htons(inet_rsk(req)->ir_num);
 		newsk->sk_write_space = sk_stream_write_space;
 
 		newicsk->icsk_retransmits = 0;
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index 984e21cf3c50..3b64c59b4109 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -304,10 +304,10 @@ struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
 	treq->rcv_isn		= ntohl(th->seq) - 1;
 	treq->snt_isn		= cookie;
 	req->mss		= mss;
-	ireq->ir_loc_port		= th->dest;
-	ireq->ir_rmt_port		= th->source;
-	ireq->ir_loc_addr		= ip_hdr(skb)->daddr;
-	ireq->ir_rmt_addr		= ip_hdr(skb)->saddr;
+	ireq->ir_num		= ntohs(th->dest);
+	ireq->ir_rmt_port	= th->source;
+	ireq->ir_loc_addr	= ip_hdr(skb)->daddr;
+	ireq->ir_rmt_addr	= ip_hdr(skb)->saddr;
 	ireq->ecn_ok		= ecn_ok;
 	ireq->snd_wscale	= tcp_opt.snd_wscale;
 	ireq->sack_ok		= tcp_opt.sack_ok;
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index faec81353522..2822ad021a48 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2734,7 +2734,7 @@ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst,
 	th->syn = 1;
 	th->ack = 1;
 	TCP_ECN_make_synack(req, th);
-	th->source = ireq->ir_loc_port;
+	th->source = htons(ireq->ir_num);
 	th->dest = ireq->ir_rmt_port;
 	/* Setting of flags are superfluous here for callers (and ECE is
 	 * not even correctly set)
diff --git a/net/ipv6/inet6_connection_sock.c b/net/ipv6/inet6_connection_sock.c
index 1317c569b58f..77bb8afb141d 100644
--- a/net/ipv6/inet6_connection_sock.c
+++ b/net/ipv6/inet6_connection_sock.c
@@ -83,7 +83,7 @@ struct dst_entry *inet6_csk_route_req(struct sock *sk,
 	fl6->flowi6_oif = ireq->ir_iif;
 	fl6->flowi6_mark = sk->sk_mark;
 	fl6->fl6_dport = ireq->ir_rmt_port;
-	fl6->fl6_sport = ireq->ir_loc_port;
+	fl6->fl6_sport = htons(ireq->ir_num);
 	security_req_classify_flow(req, flowi6_to_flowi(fl6));
 
 	dst = ip6_dst_lookup_flow(sk, fl6, final_p, false);
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index bc5698f9e4cd..d04d3f1dd9b7 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -194,7 +194,7 @@ struct sock *cookie_v6_check(struct sock *sk, struct sk_buff *skb)
 
 	req->mss = mss;
 	ireq->ir_rmt_port = th->source;
-	ireq->ir_loc_port = th->dest;
+	ireq->ir_num = ntohs(th->dest);
 	ireq->ir_v6_rmt_addr = ipv6_hdr(skb)->saddr;
 	ireq->ir_v6_loc_addr = ipv6_hdr(skb)->daddr;
 	if (ipv6_opt_accepted(sk, skb) ||
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index db234d609b33..b996ee2005a9 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1735,7 +1735,7 @@ static void get_openreq6(struct seq_file *seq,
 		   i,
 		   src->s6_addr32[0], src->s6_addr32[1],
 		   src->s6_addr32[2], src->s6_addr32[3],
-		   ntohs(inet_rsk(req)->ir_loc_port),
+		   inet_rsk(req)->ir_num,
 		   dest->s6_addr32[0], dest->s6_addr32[1],
 		   dest->s6_addr32[2], dest->s6_addr32[3],
 		   ntohs(inet_rsk(req)->ir_rmt_port),
-- 
cgit 


From 9e7827b5ea4ca93b4d864bc07c0fafb838d496b1 Mon Sep 17 00:00:00 2001
From: "K. Y. Srinivasan" <kys@microsoft.com>
Date: Mon, 30 Sep 2013 17:28:52 +0200
Subject: x86, hyperv: Get the local APIC timer frequency from the hypervisor

Hyper-V supports a mechanism for retrieving the local APIC frequency.
Use this and bypass the calibration code in the kernel . This would
allow us to boot the Linux kernel as a "modern VM" on Hyper-V where
many of the legacy devices (such as PIT) are not emulated.

I would like to thank Olaf Hering <olaf@aepfle.de>, Jan Beulich <JBeulich@suse.com> and
H. Peter Anvin <h.peter.anvin@intel.com> for their help in this effort.

In this version of the patch, I have addressed Jan's comments.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Link: http://lkml.kernel.org/r/1380554932-9888-1-git-send-email-olaf@aepfle.de
Tested-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/include/uapi/asm/hyperv.h | 19 +++++++++++++++++++
 arch/x86/kernel/cpu/mshyperv.c     | 24 ++++++++++++++++++++++++
 2 files changed, 43 insertions(+)

diff --git a/arch/x86/include/uapi/asm/hyperv.h b/arch/x86/include/uapi/asm/hyperv.h
index b80420bcd09d..b8f1c0176cbc 100644
--- a/arch/x86/include/uapi/asm/hyperv.h
+++ b/arch/x86/include/uapi/asm/hyperv.h
@@ -27,6 +27,19 @@
 #define HV_X64_MSR_VP_RUNTIME_AVAILABLE		(1 << 0)
 /* Partition Reference Counter (HV_X64_MSR_TIME_REF_COUNT) available*/
 #define HV_X64_MSR_TIME_REF_COUNT_AVAILABLE	(1 << 1)
+
+/*
+ * There is a single feature flag that signifies the presence of the MSR
+ * that can be used to retrieve both the local APIC Timer frequency as
+ * well as the TSC frequency.
+ */
+
+/* Local APIC timer frequency MSR (HV_X64_MSR_APIC_FREQUENCY) is available */
+#define HV_X64_MSR_APIC_FREQUENCY_AVAILABLE (1 << 11)
+
+/* TSC frequency MSR (HV_X64_MSR_TSC_FREQUENCY) is available */
+#define HV_X64_MSR_TSC_FREQUENCY_AVAILABLE (1 << 11)
+
 /*
  * Basic SynIC MSRs (HV_X64_MSR_SCONTROL through HV_X64_MSR_EOM
  * and HV_X64_MSR_SINT0 through HV_X64_MSR_SINT15) available
@@ -136,6 +149,12 @@
 /* MSR used to read the per-partition time reference counter */
 #define HV_X64_MSR_TIME_REF_COUNT		0x40000020
 
+/* MSR used to retrieve the TSC frequency */
+#define HV_X64_MSR_TSC_FREQUENCY		0x40000022
+
+/* MSR used to retrieve the local APIC timer frequency */
+#define HV_X64_MSR_APIC_FREQUENCY		0x40000023
+
 /* Define the virtual APIC registers */
 #define HV_X64_MSR_EOI				0x40000070
 #define HV_X64_MSR_ICR				0x40000071
diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index 71a39f3621ba..0a490ca278e7 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -15,6 +15,7 @@
 #include <linux/clocksource.h>
 #include <linux/module.h>
 #include <linux/hardirq.h>
+#include <linux/efi.h>
 #include <linux/interrupt.h>
 #include <asm/processor.h>
 #include <asm/hypervisor.h>
@@ -23,6 +24,7 @@
 #include <asm/desc.h>
 #include <asm/idle.h>
 #include <asm/irq_regs.h>
+#include <asm/i8259.h>
 
 struct ms_hyperv_info ms_hyperv;
 EXPORT_SYMBOL_GPL(ms_hyperv);
@@ -67,6 +69,8 @@ static struct clocksource hyperv_cs = {
 
 static void __init ms_hyperv_init_platform(void)
 {
+	u64	hv_lapic_frequency;
+
 	/*
 	 * Extract the features and hints
 	 */
@@ -76,6 +80,26 @@ static void __init ms_hyperv_init_platform(void)
 	printk(KERN_INFO "HyperV: features 0x%x, hints 0x%x\n",
 	       ms_hyperv.features, ms_hyperv.hints);
 
+	if (ms_hyperv.features & HV_X64_MSR_APIC_FREQUENCY_AVAILABLE) {
+		/*
+		 * Get the APIC frequency.
+		 */
+		rdmsrl(HV_X64_MSR_APIC_FREQUENCY, hv_lapic_frequency);
+		hv_lapic_frequency = div_u64(hv_lapic_frequency, HZ);
+		lapic_timer_frequency = hv_lapic_frequency;
+		printk(KERN_INFO "HyperV: LAPIC Timer Frequency: %#x\n",
+				lapic_timer_frequency);
+
+		/*
+		 * On Hyper-V, when we are booting off an EFI firmware stack,
+		 * we do not have many legacy devices including PIC, PIT etc.
+		 */
+		if (efi_enabled(EFI_BOOT)) {
+			printk(KERN_INFO "HyperV: Using null_legacy_pic\n");
+			legacy_pic = &null_legacy_pic;
+		}
+	}
+
 	if (ms_hyperv.features & HV_X64_MSR_TIME_REF_COUNT_AVAILABLE)
 		clocksource_register_hz(&hyperv_cs, NSEC_PER_SEC/100);
 }
-- 
cgit 


From 21b5187f23206c0343214194711c8f63e7003d0c Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 09:47:53 -0700
Subject: Bluetooth: Fix too long line with set_advertising() function

The function declaration goes over 80 characters, so break it down.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 7d25d6dcd79d..2793bfe48707 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3255,7 +3255,8 @@ static void set_advertising_complete(struct hci_dev *hdev, u8 status)
 		sock_put(match.sk);
 }
 
-static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
+static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data,
+			   u16 len)
 {
 	struct mgmt_mode *cp = data;
 	struct pending_cmd *cmd;
-- 
cgit 


From b145edcd1642d55a8eb7d08c954b815cb1478981 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 09:47:54 -0700
Subject: Bluetooth: Use hci_conn_num() for checking number of LE connections

When checking for the current number of LE connections, use
hci_conn_num() function instead of a full blown lookup within
the connection hash or direct access of the counters.

In the case of re-enabling advertising, it is more useful to
check for any connection attempt or existing connection.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 2793bfe48707..9a069b532bde 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3286,7 +3286,7 @@ static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data,
 	 * necessary).
 	 */
 	if (!hdev_is_powered(hdev) || val == enabled ||
-	    hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECTED)) {
+	    hci_conn_num(hdev, LE_LINK) > 0) {
 		bool changed = false;
 
 		if (val != test_bit(HCI_ADVERTISING, &hdev->dev_flags)) {
@@ -4683,7 +4683,7 @@ void mgmt_reenable_advertising(struct hci_dev *hdev)
 {
 	struct hci_request req;
 
-	if (hdev->conn_hash.le_num)
+	if (hci_conn_num(hdev, LE_LINK) > 0)
 		return;
 
 	if (!test_bit(HCI_ADVERTISING, &hdev->dev_flags))
-- 
cgit 


From 014f7bc78738d86e156635d5ac239e199573df66 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 09:47:55 -0700
Subject: Bluetooth: Use hci_conn_num() instead of direct connection hash
 access

When changing the alternate setting for the ISOC endpoints, use the
hci_conn_num() helper function to count currently established SCO
and eSCO connections and store the the value. This avoids direct
access to the connection hash.

In addition use the stored value instead accessing the connection
hash over and over again.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/btusb.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index f3dfc0a88fdc..faa429f7d8a1 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -774,7 +774,7 @@ static int btusb_send_frame(struct sk_buff *skb)
 		break;
 
 	case HCI_SCODATA_PKT:
-		if (!data->isoc_tx_ep || hdev->conn_hash.sco_num < 1)
+		if (!data->isoc_tx_ep || hci_conn_num(hdev, SCO_LINK) < 1)
 			return -ENODEV;
 
 		urb = usb_alloc_urb(BTUSB_MAX_ISOC_FRAMES, GFP_ATOMIC);
@@ -833,8 +833,8 @@ static void btusb_notify(struct hci_dev *hdev, unsigned int evt)
 
 	BT_DBG("%s evt %d", hdev->name, evt);
 
-	if (hdev->conn_hash.sco_num != data->sco_num) {
-		data->sco_num = hdev->conn_hash.sco_num;
+	if (hci_conn_num(hdev, SCO_LINK) != data->sco_num) {
+		data->sco_num = hci_conn_num(hdev, SCO_LINK);
 		schedule_work(&data->work);
 	}
 }
@@ -889,7 +889,7 @@ static void btusb_work(struct work_struct *work)
 	int new_alts;
 	int err;
 
-	if (hdev->conn_hash.sco_num > 0) {
+	if (data->sco_num > 0) {
 		if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
 			err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
 			if (err < 0) {
@@ -903,9 +903,9 @@ static void btusb_work(struct work_struct *work)
 
 		if (hdev->voice_setting & 0x0020) {
 			static const int alts[3] = { 2, 4, 5 };
-			new_alts = alts[hdev->conn_hash.sco_num - 1];
+			new_alts = alts[data->sco_num - 1];
 		} else {
-			new_alts = hdev->conn_hash.sco_num;
+			new_alts = data->sco_num;
 		}
 
 		if (data->isoc_altsetting != new_alts) {
-- 
cgit 


From 5b69bef541318857881c84958e01c7d96bfaf8d3 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 10:02:08 -0700
Subject: Bluetooth: AMP contollers do not support the legacy ioctls

The legacy ioctls for device specific commands including inquiry are
not support by AMP controllers. So just reject them right away instead
of trying to send the HCI command and wait for failure from the
actual hardware.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 10 ++++++++++
 net/bluetooth/hci_sock.c |  3 +++
 2 files changed, 13 insertions(+)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 0c636ba1ba16..593b4efb1d7f 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1048,6 +1048,11 @@ int hci_inquiry(void __user *arg)
 		goto done;
 	}
 
+	if (hdev->dev_type != HCI_BREDR) {
+		err = -EOPNOTSUPP;
+		goto done;
+	}
+
 	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) {
 		err = -EOPNOTSUPP;
 		goto done;
@@ -1533,6 +1538,11 @@ int hci_dev_cmd(unsigned int cmd, void __user *arg)
 		goto done;
 	}
 
+	if (hdev->dev_type != HCI_BREDR) {
+		err = -EOPNOTSUPP;
+		goto done;
+	}
+
 	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) {
 		err = -EOPNOTSUPP;
 		goto done;
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 579886186c3a..5b2d3f3c9b67 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -518,6 +518,9 @@ static int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd,
 	if (test_bit(HCI_USER_CHANNEL, &hdev->dev_flags))
 		return -EBUSY;
 
+	if (hdev->dev_type != HCI_BREDR)
+		return -EOPNOTSUPP;
+
 	switch (cmd) {
 	case HCISETRAW:
 		if (!capable(CAP_NET_ADMIN))
-- 
cgit 


From 19cf55a234d06d09f0c19d9d436b01ea53ec0377 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 10:50:00 -0700
Subject: Bluetooth: Remove unused bfusb_ioctl() callback

The bfusb_ioctl() function is not used and thus remove it.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/bfusb.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/bluetooth/bfusb.c b/drivers/bluetooth/bfusb.c
index 995aee9cba22..66faad0c6237 100644
--- a/drivers/bluetooth/bfusb.c
+++ b/drivers/bluetooth/bfusb.c
@@ -544,11 +544,6 @@ static int bfusb_send_frame(struct sk_buff *skb)
 	return 0;
 }
 
-static int bfusb_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
-{
-	return -ENOIOCTLCMD;
-}
-
 static int bfusb_load_firmware(struct bfusb_data *data,
 			       const unsigned char *firmware, int count)
 {
@@ -699,11 +694,10 @@ static int bfusb_probe(struct usb_interface *intf, const struct usb_device_id *i
 	hci_set_drvdata(hdev, data);
 	SET_HCIDEV_DEV(hdev, &intf->dev);
 
-	hdev->open     = bfusb_open;
-	hdev->close    = bfusb_close;
-	hdev->flush    = bfusb_flush;
-	hdev->send     = bfusb_send_frame;
-	hdev->ioctl    = bfusb_ioctl;
+	hdev->open  = bfusb_open;
+	hdev->close = bfusb_close;
+	hdev->flush = bfusb_flush;
+	hdev->send  = bfusb_send_frame;
 
 	if (hci_register_dev(hdev) < 0) {
 		BT_ERR("Can't register HCI device");
-- 
cgit 


From 87d82ee25785cd31927ea62ad539b63cc811d433 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 10:50:01 -0700
Subject: Bluetooth: Remove unused bluecard_hci_ioctl() callback

The bluecard_hci_ioctl() function is not used and thus remove it.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/bluecard_cs.c | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/bluetooth/bluecard_cs.c b/drivers/bluetooth/bluecard_cs.c
index 6c3e3d43c718..aa872c9b3fc2 100644
--- a/drivers/bluetooth/bluecard_cs.c
+++ b/drivers/bluetooth/bluecard_cs.c
@@ -693,12 +693,6 @@ static int bluecard_hci_send_frame(struct sk_buff *skb)
 }
 
 
-static int bluecard_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
-{
-	return -ENOIOCTLCMD;
-}
-
-
 
 /* ======================== Card services HCI interaction ======================== */
 
@@ -734,11 +728,10 @@ static int bluecard_open(bluecard_info_t *info)
 	hci_set_drvdata(hdev, info);
 	SET_HCIDEV_DEV(hdev, &info->p_dev->dev);
 
-	hdev->open     = bluecard_hci_open;
-	hdev->close    = bluecard_hci_close;
-	hdev->flush    = bluecard_hci_flush;
-	hdev->send     = bluecard_hci_send_frame;
-	hdev->ioctl    = bluecard_hci_ioctl;
+	hdev->open  = bluecard_hci_open;
+	hdev->close = bluecard_hci_close;
+	hdev->flush = bluecard_hci_flush;
+	hdev->send  = bluecard_hci_send_frame;
 
 	id = inb(iobase + 0x30);
 
-- 
cgit 


From 69b7e17057e2ee8c2ce0b8c32baf77cf160dc5ff Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 10:50:02 -0700
Subject: Bluetooth: Remove unused bt3c_hci_ioctl() callback

The bt3c_hci_ioctl() function is not used and thus remove it.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/bt3c_cs.c | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/bluetooth/bt3c_cs.c b/drivers/bluetooth/bt3c_cs.c
index a1aaa3ba2a4b..673455cbde4c 100644
--- a/drivers/bluetooth/bt3c_cs.c
+++ b/drivers/bluetooth/bt3c_cs.c
@@ -455,12 +455,6 @@ static int bt3c_hci_send_frame(struct sk_buff *skb)
 }
 
 
-static int bt3c_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
-{
-	return -ENOIOCTLCMD;
-}
-
-
 
 /* ======================== Card services HCI interaction ======================== */
 
@@ -577,11 +571,10 @@ static int bt3c_open(bt3c_info_t *info)
 	hci_set_drvdata(hdev, info);
 	SET_HCIDEV_DEV(hdev, &info->p_dev->dev);
 
-	hdev->open     = bt3c_hci_open;
-	hdev->close    = bt3c_hci_close;
-	hdev->flush    = bt3c_hci_flush;
-	hdev->send     = bt3c_hci_send_frame;
-	hdev->ioctl    = bt3c_hci_ioctl;
+	hdev->open  = bt3c_hci_open;
+	hdev->close = bt3c_hci_close;
+	hdev->flush = bt3c_hci_flush;
+	hdev->send  = bt3c_hci_send_frame;
 
 	/* Load firmware */
 	err = request_firmware(&firmware, "BT3CPCC.bin", &info->p_dev->dev);
-- 
cgit 


From 71f3903047a92bba5b62a7bebe7772d873e20b8c Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 10:50:03 -0700
Subject: Bluetooth: Remove unused btuart_hci_ioctl() callback

The btuart_hci_ioctl() function is not used and thus remove it.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/btuart_cs.c | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/bluetooth/btuart_cs.c b/drivers/bluetooth/btuart_cs.c
index beb262f2dc4d..970e2d3dd3c2 100644
--- a/drivers/bluetooth/btuart_cs.c
+++ b/drivers/bluetooth/btuart_cs.c
@@ -458,12 +458,6 @@ static int btuart_hci_send_frame(struct sk_buff *skb)
 }
 
 
-static int btuart_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
-{
-	return -ENOIOCTLCMD;
-}
-
-
 
 /* ======================== Card services HCI interaction ======================== */
 
@@ -495,11 +489,10 @@ static int btuart_open(btuart_info_t *info)
 	hci_set_drvdata(hdev, info);
 	SET_HCIDEV_DEV(hdev, &info->p_dev->dev);
 
-	hdev->open     = btuart_hci_open;
-	hdev->close    = btuart_hci_close;
-	hdev->flush    = btuart_hci_flush;
-	hdev->send     = btuart_hci_send_frame;
-	hdev->ioctl    = btuart_hci_ioctl;
+	hdev->open  = btuart_hci_open;
+	hdev->close = btuart_hci_close;
+	hdev->flush = btuart_hci_flush;
+	hdev->send  = btuart_hci_send_frame;
 
 	spin_lock_irqsave(&(info->lock), flags);
 
-- 
cgit 


From 3c7288422f1f12b5cd4e9b08338105273e6f63d5 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 10:50:04 -0700
Subject: Bluetooth: Remove unused dtl1_hci_ioctl() callback

The dtl1_hci_ioctl() function is not used and thus remove it.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/dtl1_cs.c | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/bluetooth/dtl1_cs.c b/drivers/bluetooth/dtl1_cs.c
index 33f3a6950c0e..c43aff8ec995 100644
--- a/drivers/bluetooth/dtl1_cs.c
+++ b/drivers/bluetooth/dtl1_cs.c
@@ -438,12 +438,6 @@ static int dtl1_hci_send_frame(struct sk_buff *skb)
 }
 
 
-static int dtl1_hci_ioctl(struct hci_dev *hdev, unsigned int cmd,  unsigned long arg)
-{
-	return -ENOIOCTLCMD;
-}
-
-
 
 /* ======================== Card services HCI interaction ======================== */
 
@@ -477,11 +471,10 @@ static int dtl1_open(dtl1_info_t *info)
 	hci_set_drvdata(hdev, info);
 	SET_HCIDEV_DEV(hdev, &info->p_dev->dev);
 
-	hdev->open     = dtl1_hci_open;
-	hdev->close    = dtl1_hci_close;
-	hdev->flush    = dtl1_hci_flush;
-	hdev->send     = dtl1_hci_send_frame;
-	hdev->ioctl    = dtl1_hci_ioctl;
+	hdev->open  = dtl1_hci_open;
+	hdev->close = dtl1_hci_close;
+	hdev->flush = dtl1_hci_flush;
+	hdev->send  = dtl1_hci_send_frame;
 
 	spin_lock_irqsave(&(info->lock), flags);
 
-- 
cgit 


From e93ac9c063bd757fb7c5e8d3d80902f13afa8979 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 10:50:05 -0700
Subject: Bluetooth: Remove unused btmrvl_ioctl() callback

The btmrvl_ioctl() function is not used and thus remove it.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/btmrvl_main.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/bluetooth/btmrvl_main.c b/drivers/bluetooth/btmrvl_main.c
index 6e7bd4e4adbb..8ac4d938d89c 100644
--- a/drivers/bluetooth/btmrvl_main.c
+++ b/drivers/bluetooth/btmrvl_main.c
@@ -356,12 +356,6 @@ static void btmrvl_free_adapter(struct btmrvl_private *priv)
 	priv->adapter = NULL;
 }
 
-static int btmrvl_ioctl(struct hci_dev *hdev,
-				unsigned int cmd, unsigned long arg)
-{
-	return -ENOIOCTLCMD;
-}
-
 static int btmrvl_send_frame(struct sk_buff *skb)
 {
 	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
@@ -650,12 +644,11 @@ int btmrvl_register_hdev(struct btmrvl_private *priv)
 	priv->btmrvl_dev.hcidev = hdev;
 	hci_set_drvdata(hdev, priv);
 
-	hdev->bus = HCI_SDIO;
-	hdev->open = btmrvl_open;
+	hdev->bus   = HCI_SDIO;
+	hdev->open  = btmrvl_open;
 	hdev->close = btmrvl_close;
 	hdev->flush = btmrvl_flush;
-	hdev->send = btmrvl_send_frame;
-	hdev->ioctl = btmrvl_ioctl;
+	hdev->send  = btmrvl_send_frame;
 	hdev->setup = btmrvl_setup;
 
 	hdev->dev_type = priv->btmrvl_dev.dev_type;
-- 
cgit 


From 324d36ed26a22bc14b2dd4505f3dba3fb2676bcc Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 10:50:06 -0700
Subject: Bluetooth: Remove hdev->ioctl driver callback

Since there is no use of hdev->ioctl by any Bluetooth driver since
ever, so just lets remove it.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h | 1 -
 net/bluetooth/hci_sock.c         | 5 +----
 2 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index c06552769644..237bf8c03fb4 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -287,7 +287,6 @@ struct hci_dev {
 	int (*setup)(struct hci_dev *hdev);
 	int (*send)(struct sk_buff *skb);
 	void (*notify)(struct hci_dev *hdev, unsigned int evt);
-	int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
 };
 
 #define HCI_PHY_HANDLE(handle)	(handle & 0xff)
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 5b2d3f3c9b67..3beaa0594009 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -553,10 +553,7 @@ static int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd,
 		return hci_sock_blacklist_del(hdev, (void __user *) arg);
 	}
 
-	if (hdev->ioctl)
-		return hdev->ioctl(hdev, cmd, arg);
-
-	return -EINVAL;
+	return -ENOIOCTLCMD;
 }
 
 static int hci_sock_ioctl(struct socket *sock, unsigned int cmd,
-- 
cgit 


From 1a25f26138cde2b83fd74ead6da0bbd4b6c42b60 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Thu, 10 Oct 2013 20:55:03 +0100
Subject: regmap: Use async I/O for patch application

Try to speed up patch application a little using async I/O.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/base/regmap/regmap.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 0503d868ff8c..71282e12fd29 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -2029,6 +2029,7 @@ int regmap_register_patch(struct regmap *map, const struct reg_default *regs,
 	bypass = map->cache_bypass;
 
 	map->cache_bypass = true;
+	map->async = true;
 
 	/* Write out first; it's useful to apply even if we fail later. */
 	for (i = 0; i < num_regs; i++) {
@@ -2052,10 +2053,13 @@ int regmap_register_patch(struct regmap *map, const struct reg_default *regs,
 	}
 
 out:
+	map->async = false;
 	map->cache_bypass = bypass;
 
 	map->unlock(map->lock_arg);
 
+	regmap_async_complete(map);
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(regmap_register_patch);
-- 
cgit 


From affbe886e712437c25b575eac5fde5886bb42aec Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Thu, 10 Oct 2013 21:06:32 +0100
Subject: regmap: Use async I/O during cache sync

Try to speed up I/O a little by not synchronising until we are finished
scheduling writes. A brief survey of existing users suggests we have none
that would currently benefit from an async cache sync.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/base/regmap/regcache.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/base/regmap/regcache.c b/drivers/base/regmap/regcache.c
index a36112af494c..d4dd77134814 100644
--- a/drivers/base/regmap/regcache.c
+++ b/drivers/base/regmap/regcache.c
@@ -307,6 +307,8 @@ int regcache_sync(struct regmap *map)
 	if (!map->cache_dirty)
 		goto out;
 
+	map->async = true;
+
 	/* Apply any patch first */
 	map->cache_bypass = 1;
 	for (i = 0; i < map->patch_regs; i++) {
@@ -332,11 +334,15 @@ int regcache_sync(struct regmap *map)
 		map->cache_dirty = false;
 
 out:
-	trace_regcache_sync(map->dev, name, "stop");
 	/* Restore the bypass state */
+	map->async = false;
 	map->cache_bypass = bypass;
 	map->unlock(map->lock_arg);
 
+	regmap_async_complete(map);
+
+	trace_regcache_sync(map->dev, name, "stop");
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(regcache_sync);
@@ -375,17 +381,23 @@ int regcache_sync_region(struct regmap *map, unsigned int min,
 	if (!map->cache_dirty)
 		goto out;
 
+	map->async = true;
+
 	if (map->cache_ops->sync)
 		ret = map->cache_ops->sync(map, min, max);
 	else
 		ret = regcache_default_sync(map, min, max);
 
 out:
-	trace_regcache_sync(map->dev, name, "stop region");
 	/* Restore the bypass state */
 	map->cache_bypass = bypass;
+	map->async = false;
 	map->unlock(map->lock_arg);
 
+	regmap_async_complete(map);
+
+	trace_regcache_sync(map->dev, name, "stop region");
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(regcache_sync_region);
-- 
cgit 


From e54968ca1eaa78749d7a7fc20227639a31dff629 Mon Sep 17 00:00:00 2001
From: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Date: Mon, 7 Oct 2013 17:12:21 +0300
Subject: ACPI / platform: Add ACPI IDs for Intel SST audio device

This adds ACPI IDs for Intel Smart Sound Technology (SST) device found in
Intel Haswell and BayTrail platforms.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_platform.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 1bde12708f9e..ed0f06390245 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -30,6 +30,9 @@ static const struct acpi_device_id acpi_platform_device_ids[] = {
 
 	{ "PNP0D40" },
 
+	/* Intel Smart Sound Technology */
+	{ "INT33C8" },
+	{ "80860F28" },
 	{ }
 };
 
-- 
cgit 


From 088f1fd267c7f43b5d87850a0fa0c7e851ecae97 Mon Sep 17 00:00:00 2001
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Wed, 9 Oct 2013 09:49:20 +0300
Subject: ACPI / LPSS: fix UART Auto Flow Control

There is an additional bit in the GENERAL register on newer
silicon that needs to be set or UART's RTS pin fails to
reflect the flow control settings in the Modem Control
Register.

This will fix an issue where the RTS pin of the UART stays
always at 1.8V, regardless of the register settings.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_lpss.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index fb78bb9ad8f6..d3961014aad7 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -30,6 +30,7 @@ ACPI_MODULE_NAME("acpi_lpss");
 /* Offsets relative to LPSS_PRIVATE_OFFSET */
 #define LPSS_GENERAL			0x08
 #define LPSS_GENERAL_LTR_MODE_SW	BIT(2)
+#define LPSS_GENERAL_UART_RTS_OVRD	BIT(3)
 #define LPSS_SW_LTR			0x10
 #define LPSS_AUTO_LTR			0x14
 #define LPSS_TX_INT			0x20
@@ -68,11 +69,16 @@ struct lpss_private_data {
 
 static void lpss_uart_setup(struct lpss_private_data *pdata)
 {
-	unsigned int tx_int_offset = pdata->dev_desc->prv_offset + LPSS_TX_INT;
+	unsigned int offset;
 	u32 reg;
 
-	reg = readl(pdata->mmio_base + tx_int_offset);
-	writel(reg | LPSS_TX_INT_MASK, pdata->mmio_base + tx_int_offset);
+	offset = pdata->dev_desc->prv_offset + LPSS_TX_INT;
+	reg = readl(pdata->mmio_base + offset);
+	writel(reg | LPSS_TX_INT_MASK, pdata->mmio_base + offset);
+
+	offset = pdata->dev_desc->prv_offset + LPSS_GENERAL;
+	reg = readl(pdata->mmio_base + offset);
+	writel(reg | LPSS_GENERAL_UART_RTS_OVRD, pdata->mmio_base + offset);
 }
 
 static struct lpss_device_desc lpt_dev_desc = {
-- 
cgit 


From e83dda06242073b1c7f9a88f1001e32a4b9fcd1d Mon Sep 17 00:00:00 2001
From: Al Stone <ahs3@redhat.com>
Date: Wed, 9 Oct 2013 14:21:10 -0600
Subject: ACPI: improve acpi_extract_package() utility

The current version requires one to know the size of the package
a priori; this is almost impossible if the package is composed of
strings of variable length.  This change allows the utility to
allocate a buffer of the proper size if asked.

Signed-off-by: Al Stone <al.stone@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/utils.c | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index 552248b0005b..fc2cd3284080 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -169,11 +169,20 @@ acpi_extract_package(union acpi_object *package,
 	/*
 	 * Validate output buffer.
 	 */
-	if (buffer->length < size_required) {
+	if (buffer->length == ACPI_ALLOCATE_BUFFER) {
+		buffer->pointer = ACPI_ALLOCATE(size_required);
+		if (!buffer->pointer)
+			return AE_NO_MEMORY;
 		buffer->length = size_required;
-		return AE_BUFFER_OVERFLOW;
-	} else if (buffer->length != size_required || !buffer->pointer) {
-		return AE_BAD_PARAMETER;
+		memset(buffer->pointer, 0, size_required);
+	} else {
+		if (buffer->length < size_required) {
+			buffer->length = size_required;
+			return AE_BUFFER_OVERFLOW;
+		} else if (buffer->length != size_required ||
+			   !buffer->pointer) {
+			return AE_BAD_PARAMETER;
+		}
 	}
 
 	head = buffer->pointer;
-- 
cgit 


From 7ef9fbf08818fa1cb8ae89fca29f193dd78d5dd8 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 14:54:14 -0700
Subject: Bluetooth: Move amp.h header file into net/bluetooth/

The amp.h header file is only used internally by the bluetooth.ko
module and is not a public API. So make it local to the core
Bluetooth module.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/amp.h | 54 ---------------------------------------------
 net/bluetooth/a2mp.c        |  3 ++-
 net/bluetooth/amp.c         |  3 ++-
 net/bluetooth/amp.h         | 54 +++++++++++++++++++++++++++++++++++++++++++++
 net/bluetooth/hci_event.c   |  3 ++-
 net/bluetooth/l2cap_core.c  |  3 ++-
 6 files changed, 62 insertions(+), 58 deletions(-)
 delete mode 100644 include/net/bluetooth/amp.h
 create mode 100644 net/bluetooth/amp.h

diff --git a/include/net/bluetooth/amp.h b/include/net/bluetooth/amp.h
deleted file mode 100644
index 7ea3db77ba89..000000000000
--- a/include/net/bluetooth/amp.h
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
-   Copyright (c) 2011,2012 Intel Corp.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License version 2 and
-   only version 2 as published by the Free Software Foundation.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-*/
-
-#ifndef __AMP_H
-#define __AMP_H
-
-struct amp_ctrl {
-	struct list_head	list;
-	struct kref		kref;
-	__u8			id;
-	__u16			assoc_len_so_far;
-	__u16			assoc_rem_len;
-	__u16			assoc_len;
-	__u8			*assoc;
-};
-
-int amp_ctrl_put(struct amp_ctrl *ctrl);
-void amp_ctrl_get(struct amp_ctrl *ctrl);
-struct amp_ctrl *amp_ctrl_add(struct amp_mgr *mgr, u8 id);
-struct amp_ctrl *amp_ctrl_lookup(struct amp_mgr *mgr, u8 id);
-void amp_ctrl_list_flush(struct amp_mgr *mgr);
-
-struct hci_conn *phylink_add(struct hci_dev *hdev, struct amp_mgr *mgr,
-			     u8 remote_id, bool out);
-
-int phylink_gen_key(struct hci_conn *hcon, u8 *data, u8 *len, u8 *type);
-
-void amp_read_loc_info(struct hci_dev *hdev, struct amp_mgr *mgr);
-void amp_read_loc_assoc_frag(struct hci_dev *hdev, u8 phy_handle);
-void amp_read_loc_assoc(struct hci_dev *hdev, struct amp_mgr *mgr);
-void amp_read_loc_assoc_final_data(struct hci_dev *hdev,
-				   struct hci_conn *hcon);
-void amp_create_phylink(struct hci_dev *hdev, struct amp_mgr *mgr,
-			struct hci_conn *hcon);
-void amp_accept_phylink(struct hci_dev *hdev, struct amp_mgr *mgr,
-			struct hci_conn *hcon);
-void amp_write_remote_assoc(struct hci_dev *hdev, u8 handle);
-void amp_write_rem_assoc_continue(struct hci_dev *hdev, u8 handle);
-void amp_physical_cfm(struct hci_conn *bredr_hcon, struct hci_conn *hs_hcon);
-void amp_create_logical_link(struct l2cap_chan *chan);
-void amp_disconnect_logical_link(struct hci_chan *hchan);
-void amp_destroy_logical_link(struct hci_chan *hchan, u8 reason);
-
-#endif /* __AMP_H */
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index b38d07477c20..9ae32cef1762 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -16,7 +16,8 @@
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/l2cap.h>
 #include <net/bluetooth/a2mp.h>
-#include <net/bluetooth/amp.h>
+
+#include "amp.h"
 
 /* Global AMP Manager list */
 LIST_HEAD(amp_mgr_list);
diff --git a/net/bluetooth/amp.c b/net/bluetooth/amp.c
index d459ed43c779..b7b8f4eed661 100644
--- a/net/bluetooth/amp.c
+++ b/net/bluetooth/amp.c
@@ -15,9 +15,10 @@
 #include <net/bluetooth/hci.h>
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/a2mp.h>
-#include <net/bluetooth/amp.h>
 #include <crypto/hash.h>
 
+#include "amp.h"
+
 /* Remote AMP Controllers interface */
 void amp_ctrl_get(struct amp_ctrl *ctrl)
 {
diff --git a/net/bluetooth/amp.h b/net/bluetooth/amp.h
new file mode 100644
index 000000000000..7ea3db77ba89
--- /dev/null
+++ b/net/bluetooth/amp.h
@@ -0,0 +1,54 @@
+/*
+   Copyright (c) 2011,2012 Intel Corp.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 and
+   only version 2 as published by the Free Software Foundation.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+*/
+
+#ifndef __AMP_H
+#define __AMP_H
+
+struct amp_ctrl {
+	struct list_head	list;
+	struct kref		kref;
+	__u8			id;
+	__u16			assoc_len_so_far;
+	__u16			assoc_rem_len;
+	__u16			assoc_len;
+	__u8			*assoc;
+};
+
+int amp_ctrl_put(struct amp_ctrl *ctrl);
+void amp_ctrl_get(struct amp_ctrl *ctrl);
+struct amp_ctrl *amp_ctrl_add(struct amp_mgr *mgr, u8 id);
+struct amp_ctrl *amp_ctrl_lookup(struct amp_mgr *mgr, u8 id);
+void amp_ctrl_list_flush(struct amp_mgr *mgr);
+
+struct hci_conn *phylink_add(struct hci_dev *hdev, struct amp_mgr *mgr,
+			     u8 remote_id, bool out);
+
+int phylink_gen_key(struct hci_conn *hcon, u8 *data, u8 *len, u8 *type);
+
+void amp_read_loc_info(struct hci_dev *hdev, struct amp_mgr *mgr);
+void amp_read_loc_assoc_frag(struct hci_dev *hdev, u8 phy_handle);
+void amp_read_loc_assoc(struct hci_dev *hdev, struct amp_mgr *mgr);
+void amp_read_loc_assoc_final_data(struct hci_dev *hdev,
+				   struct hci_conn *hcon);
+void amp_create_phylink(struct hci_dev *hdev, struct amp_mgr *mgr,
+			struct hci_conn *hcon);
+void amp_accept_phylink(struct hci_dev *hdev, struct amp_mgr *mgr,
+			struct hci_conn *hcon);
+void amp_write_remote_assoc(struct hci_dev *hdev, u8 handle);
+void amp_write_rem_assoc_continue(struct hci_dev *hdev, u8 handle);
+void amp_physical_cfm(struct hci_conn *bredr_hcon, struct hci_conn *hs_hcon);
+void amp_create_logical_link(struct l2cap_chan *chan);
+void amp_disconnect_logical_link(struct hci_chan *hchan);
+void amp_destroy_logical_link(struct hci_chan *hchan, u8 reason);
+
+#endif /* __AMP_H */
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index ada3bf4d7e2a..67316b3e9304 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -30,7 +30,8 @@
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/mgmt.h>
 #include <net/bluetooth/a2mp.h>
-#include <net/bluetooth/amp.h>
+
+#include "amp.h"
 
 /* Handle HCI Event packets */
 
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 06e7173c2d13..09f6f61423ff 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -38,7 +38,8 @@
 #include <net/bluetooth/l2cap.h>
 #include <net/bluetooth/smp.h>
 #include <net/bluetooth/a2mp.h>
-#include <net/bluetooth/amp.h>
+
+#include "amp.h"
 
 bool disable_ertm;
 
-- 
cgit 


From 7024728ee534d739380dc4fd31f020cfc6e86c28 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 14:54:15 -0700
Subject: Bluetooth: Move a2mp.h header file into net/bluetooth/

The a2mp.h header file is only used internally by the bluetooth.ko
module and is not a public API. So make it local to the core
Bluetooth module.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/a2mp.h | 150 -------------------------------------------
 net/bluetooth/a2mp.c         |   2 +-
 net/bluetooth/a2mp.h         | 150 +++++++++++++++++++++++++++++++++++++++++++
 net/bluetooth/amp.c          |   2 +-
 net/bluetooth/hci_conn.c     |   3 +-
 net/bluetooth/hci_event.c    |   2 +-
 net/bluetooth/l2cap_core.c   |   2 +-
 7 files changed, 156 insertions(+), 155 deletions(-)
 delete mode 100644 include/net/bluetooth/a2mp.h
 create mode 100644 net/bluetooth/a2mp.h

diff --git a/include/net/bluetooth/a2mp.h b/include/net/bluetooth/a2mp.h
deleted file mode 100644
index 487b54c1308f..000000000000
--- a/include/net/bluetooth/a2mp.h
+++ /dev/null
@@ -1,150 +0,0 @@
-/*
-   Copyright (c) 2010,2011 Code Aurora Forum.  All rights reserved.
-   Copyright (c) 2011,2012 Intel Corp.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License version 2 and
-   only version 2 as published by the Free Software Foundation.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-*/
-
-#ifndef __A2MP_H
-#define __A2MP_H
-
-#include <net/bluetooth/l2cap.h>
-
-#define A2MP_FEAT_EXT	0x8000
-
-enum amp_mgr_state {
-	READ_LOC_AMP_INFO,
-	READ_LOC_AMP_ASSOC,
-	READ_LOC_AMP_ASSOC_FINAL,
-	WRITE_REMOTE_AMP_ASSOC,
-};
-
-struct amp_mgr {
-	struct list_head	list;
-	struct l2cap_conn	*l2cap_conn;
-	struct l2cap_chan	*a2mp_chan;
-	struct l2cap_chan	*bredr_chan;
-	struct kref		kref;
-	__u8			ident;
-	__u8			handle;
-	unsigned long		state;
-	unsigned long		flags;
-
-	struct list_head	amp_ctrls;
-	struct mutex		amp_ctrls_lock;
-};
-
-struct a2mp_cmd {
-	__u8	code;
-	__u8	ident;
-	__le16	len;
-	__u8	data[0];
-} __packed;
-
-/* A2MP command codes */
-#define A2MP_COMMAND_REJ         0x01
-struct a2mp_cmd_rej {
-	__le16	reason;
-	__u8	data[0];
-} __packed;
-
-#define A2MP_DISCOVER_REQ        0x02
-struct a2mp_discov_req {
-	__le16	mtu;
-	__le16	ext_feat;
-} __packed;
-
-struct a2mp_cl {
-	__u8	id;
-	__u8	type;
-	__u8	status;
-} __packed;
-
-#define A2MP_DISCOVER_RSP        0x03
-struct a2mp_discov_rsp {
-	__le16     mtu;
-	__le16     ext_feat;
-	struct a2mp_cl cl[0];
-} __packed;
-
-#define A2MP_CHANGE_NOTIFY       0x04
-#define A2MP_CHANGE_RSP          0x05
-
-#define A2MP_GETINFO_REQ         0x06
-struct a2mp_info_req {
-	__u8       id;
-} __packed;
-
-#define A2MP_GETINFO_RSP         0x07
-struct a2mp_info_rsp {
-	__u8	id;
-	__u8	status;
-	__le32	total_bw;
-	__le32	max_bw;
-	__le32	min_latency;
-	__le16	pal_cap;
-	__le16	assoc_size;
-} __packed;
-
-#define A2MP_GETAMPASSOC_REQ     0x08
-struct a2mp_amp_assoc_req {
-	__u8	id;
-} __packed;
-
-#define A2MP_GETAMPASSOC_RSP     0x09
-struct a2mp_amp_assoc_rsp {
-	__u8	id;
-	__u8	status;
-	__u8	amp_assoc[0];
-} __packed;
-
-#define A2MP_CREATEPHYSLINK_REQ  0x0A
-#define A2MP_DISCONNPHYSLINK_REQ 0x0C
-struct a2mp_physlink_req {
-	__u8	local_id;
-	__u8	remote_id;
-	__u8	amp_assoc[0];
-} __packed;
-
-#define A2MP_CREATEPHYSLINK_RSP  0x0B
-#define A2MP_DISCONNPHYSLINK_RSP 0x0D
-struct a2mp_physlink_rsp {
-	__u8	local_id;
-	__u8	remote_id;
-	__u8	status;
-} __packed;
-
-/* A2MP response status */
-#define A2MP_STATUS_SUCCESS			0x00
-#define A2MP_STATUS_INVALID_CTRL_ID		0x01
-#define A2MP_STATUS_UNABLE_START_LINK_CREATION	0x02
-#define A2MP_STATUS_NO_PHYSICAL_LINK_EXISTS	0x02
-#define A2MP_STATUS_COLLISION_OCCURED		0x03
-#define A2MP_STATUS_DISCONN_REQ_RECVD		0x04
-#define A2MP_STATUS_PHYS_LINK_EXISTS		0x05
-#define A2MP_STATUS_SECURITY_VIOLATION		0x06
-
-extern struct list_head amp_mgr_list;
-extern struct mutex amp_mgr_list_lock;
-
-struct amp_mgr *amp_mgr_get(struct amp_mgr *mgr);
-int amp_mgr_put(struct amp_mgr *mgr);
-u8 __next_ident(struct amp_mgr *mgr);
-struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,
-				       struct sk_buff *skb);
-struct amp_mgr *amp_mgr_lookup_by_state(u8 state);
-void a2mp_send(struct amp_mgr *mgr, u8 code, u8 ident, u16 len, void *data);
-void a2mp_discover_amp(struct l2cap_chan *chan);
-void a2mp_send_getinfo_rsp(struct hci_dev *hdev);
-void a2mp_send_getampassoc_rsp(struct hci_dev *hdev, u8 status);
-void a2mp_send_create_phy_link_req(struct hci_dev *hdev, u8 status);
-void a2mp_send_create_phy_link_rsp(struct hci_dev *hdev, u8 status);
-
-#endif /* __A2MP_H */
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 9ae32cef1762..7e25be3e8a79 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -15,8 +15,8 @@
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/l2cap.h>
-#include <net/bluetooth/a2mp.h>
 
+#include "a2mp.h"
 #include "amp.h"
 
 /* Global AMP Manager list */
diff --git a/net/bluetooth/a2mp.h b/net/bluetooth/a2mp.h
new file mode 100644
index 000000000000..487b54c1308f
--- /dev/null
+++ b/net/bluetooth/a2mp.h
@@ -0,0 +1,150 @@
+/*
+   Copyright (c) 2010,2011 Code Aurora Forum.  All rights reserved.
+   Copyright (c) 2011,2012 Intel Corp.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 and
+   only version 2 as published by the Free Software Foundation.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+*/
+
+#ifndef __A2MP_H
+#define __A2MP_H
+
+#include <net/bluetooth/l2cap.h>
+
+#define A2MP_FEAT_EXT	0x8000
+
+enum amp_mgr_state {
+	READ_LOC_AMP_INFO,
+	READ_LOC_AMP_ASSOC,
+	READ_LOC_AMP_ASSOC_FINAL,
+	WRITE_REMOTE_AMP_ASSOC,
+};
+
+struct amp_mgr {
+	struct list_head	list;
+	struct l2cap_conn	*l2cap_conn;
+	struct l2cap_chan	*a2mp_chan;
+	struct l2cap_chan	*bredr_chan;
+	struct kref		kref;
+	__u8			ident;
+	__u8			handle;
+	unsigned long		state;
+	unsigned long		flags;
+
+	struct list_head	amp_ctrls;
+	struct mutex		amp_ctrls_lock;
+};
+
+struct a2mp_cmd {
+	__u8	code;
+	__u8	ident;
+	__le16	len;
+	__u8	data[0];
+} __packed;
+
+/* A2MP command codes */
+#define A2MP_COMMAND_REJ         0x01
+struct a2mp_cmd_rej {
+	__le16	reason;
+	__u8	data[0];
+} __packed;
+
+#define A2MP_DISCOVER_REQ        0x02
+struct a2mp_discov_req {
+	__le16	mtu;
+	__le16	ext_feat;
+} __packed;
+
+struct a2mp_cl {
+	__u8	id;
+	__u8	type;
+	__u8	status;
+} __packed;
+
+#define A2MP_DISCOVER_RSP        0x03
+struct a2mp_discov_rsp {
+	__le16     mtu;
+	__le16     ext_feat;
+	struct a2mp_cl cl[0];
+} __packed;
+
+#define A2MP_CHANGE_NOTIFY       0x04
+#define A2MP_CHANGE_RSP          0x05
+
+#define A2MP_GETINFO_REQ         0x06
+struct a2mp_info_req {
+	__u8       id;
+} __packed;
+
+#define A2MP_GETINFO_RSP         0x07
+struct a2mp_info_rsp {
+	__u8	id;
+	__u8	status;
+	__le32	total_bw;
+	__le32	max_bw;
+	__le32	min_latency;
+	__le16	pal_cap;
+	__le16	assoc_size;
+} __packed;
+
+#define A2MP_GETAMPASSOC_REQ     0x08
+struct a2mp_amp_assoc_req {
+	__u8	id;
+} __packed;
+
+#define A2MP_GETAMPASSOC_RSP     0x09
+struct a2mp_amp_assoc_rsp {
+	__u8	id;
+	__u8	status;
+	__u8	amp_assoc[0];
+} __packed;
+
+#define A2MP_CREATEPHYSLINK_REQ  0x0A
+#define A2MP_DISCONNPHYSLINK_REQ 0x0C
+struct a2mp_physlink_req {
+	__u8	local_id;
+	__u8	remote_id;
+	__u8	amp_assoc[0];
+} __packed;
+
+#define A2MP_CREATEPHYSLINK_RSP  0x0B
+#define A2MP_DISCONNPHYSLINK_RSP 0x0D
+struct a2mp_physlink_rsp {
+	__u8	local_id;
+	__u8	remote_id;
+	__u8	status;
+} __packed;
+
+/* A2MP response status */
+#define A2MP_STATUS_SUCCESS			0x00
+#define A2MP_STATUS_INVALID_CTRL_ID		0x01
+#define A2MP_STATUS_UNABLE_START_LINK_CREATION	0x02
+#define A2MP_STATUS_NO_PHYSICAL_LINK_EXISTS	0x02
+#define A2MP_STATUS_COLLISION_OCCURED		0x03
+#define A2MP_STATUS_DISCONN_REQ_RECVD		0x04
+#define A2MP_STATUS_PHYS_LINK_EXISTS		0x05
+#define A2MP_STATUS_SECURITY_VIOLATION		0x06
+
+extern struct list_head amp_mgr_list;
+extern struct mutex amp_mgr_list_lock;
+
+struct amp_mgr *amp_mgr_get(struct amp_mgr *mgr);
+int amp_mgr_put(struct amp_mgr *mgr);
+u8 __next_ident(struct amp_mgr *mgr);
+struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,
+				       struct sk_buff *skb);
+struct amp_mgr *amp_mgr_lookup_by_state(u8 state);
+void a2mp_send(struct amp_mgr *mgr, u8 code, u8 ident, u16 len, void *data);
+void a2mp_discover_amp(struct l2cap_chan *chan);
+void a2mp_send_getinfo_rsp(struct hci_dev *hdev);
+void a2mp_send_getampassoc_rsp(struct hci_dev *hdev, u8 status);
+void a2mp_send_create_phy_link_req(struct hci_dev *hdev, u8 status);
+void a2mp_send_create_phy_link_rsp(struct hci_dev *hdev, u8 status);
+
+#endif /* __A2MP_H */
diff --git a/net/bluetooth/amp.c b/net/bluetooth/amp.c
index b7b8f4eed661..5497ed3f2e3d 100644
--- a/net/bluetooth/amp.c
+++ b/net/bluetooth/amp.c
@@ -14,9 +14,9 @@
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci.h>
 #include <net/bluetooth/hci_core.h>
-#include <net/bluetooth/a2mp.h>
 #include <crypto/hash.h>
 
+#include "a2mp.h"
 #include "amp.h"
 
 /* Remote AMP Controllers interface */
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index dedd1ea5dd4c..8141c8d83139 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -28,9 +28,10 @@
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
-#include <net/bluetooth/a2mp.h>
 #include <net/bluetooth/smp.h>
 
+#include "a2mp.h"
+
 struct sco_param {
 	u16 pkt_type;
 	u16 max_latency;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 67316b3e9304..bbe2d292c4a9 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -29,8 +29,8 @@
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/mgmt.h>
-#include <net/bluetooth/a2mp.h>
 
+#include "a2mp.h"
 #include "amp.h"
 
 /* Handle HCI Event packets */
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 09f6f61423ff..947e18691e92 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -37,8 +37,8 @@
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/l2cap.h>
 #include <net/bluetooth/smp.h>
-#include <net/bluetooth/a2mp.h>
 
+#include "a2mp.h"
 #include "amp.h"
 
 bool disable_ertm;
-- 
cgit 


From ac4b7236610cef99821f40f44a74030b85d85270 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 14:54:16 -0700
Subject: Bluetooth: Move smp.h header file into net/bluetooth/

The smp.h header file is only used internally by the bluetooth.ko
module and is not a public API. So make it local to the core
Bluetooth module.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/smp.h | 146 --------------------------------------------
 net/bluetooth/hci_conn.c    |   2 +-
 net/bluetooth/l2cap_core.c  |   2 +-
 net/bluetooth/l2cap_sock.c  |   3 +-
 net/bluetooth/mgmt.c        |   3 +-
 net/bluetooth/smp.c         |   3 +-
 net/bluetooth/smp.h         | 146 ++++++++++++++++++++++++++++++++++++++++++++
 7 files changed, 154 insertions(+), 151 deletions(-)
 delete mode 100644 include/net/bluetooth/smp.h
 create mode 100644 net/bluetooth/smp.h

diff --git a/include/net/bluetooth/smp.h b/include/net/bluetooth/smp.h
deleted file mode 100644
index f8ba07f3e5fa..000000000000
--- a/include/net/bluetooth/smp.h
+++ /dev/null
@@ -1,146 +0,0 @@
-/*
-   BlueZ - Bluetooth protocol stack for Linux
-   Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU General Public License version 2 as
-   published by the Free Software Foundation;
-
-   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
-   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
-   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
-   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
-   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
-   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
-   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
-   SOFTWARE IS DISCLAIMED.
-*/
-
-#ifndef __SMP_H
-#define __SMP_H
-
-struct smp_command_hdr {
-	__u8	code;
-} __packed;
-
-#define SMP_CMD_PAIRING_REQ	0x01
-#define SMP_CMD_PAIRING_RSP	0x02
-struct smp_cmd_pairing {
-	__u8	io_capability;
-	__u8	oob_flag;
-	__u8	auth_req;
-	__u8	max_key_size;
-	__u8	init_key_dist;
-	__u8	resp_key_dist;
-} __packed;
-
-#define SMP_IO_DISPLAY_ONLY	0x00
-#define SMP_IO_DISPLAY_YESNO	0x01
-#define SMP_IO_KEYBOARD_ONLY	0x02
-#define SMP_IO_NO_INPUT_OUTPUT	0x03
-#define SMP_IO_KEYBOARD_DISPLAY	0x04
-
-#define SMP_OOB_NOT_PRESENT	0x00
-#define SMP_OOB_PRESENT		0x01
-
-#define SMP_DIST_ENC_KEY	0x01
-#define SMP_DIST_ID_KEY		0x02
-#define SMP_DIST_SIGN		0x04
-
-#define SMP_AUTH_NONE		0x00
-#define SMP_AUTH_BONDING	0x01
-#define SMP_AUTH_MITM		0x04
-
-#define SMP_CMD_PAIRING_CONFIRM	0x03
-struct smp_cmd_pairing_confirm {
-	__u8	confirm_val[16];
-} __packed;
-
-#define SMP_CMD_PAIRING_RANDOM	0x04
-struct smp_cmd_pairing_random {
-	__u8	rand_val[16];
-} __packed;
-
-#define SMP_CMD_PAIRING_FAIL	0x05
-struct smp_cmd_pairing_fail {
-	__u8	reason;
-} __packed;
-
-#define SMP_CMD_ENCRYPT_INFO	0x06
-struct smp_cmd_encrypt_info {
-	__u8	ltk[16];
-} __packed;
-
-#define SMP_CMD_MASTER_IDENT	0x07
-struct smp_cmd_master_ident {
-	__le16	ediv;
-	__u8	rand[8];
-} __packed;
-
-#define SMP_CMD_IDENT_INFO	0x08
-struct smp_cmd_ident_info {
-	__u8	irk[16];
-} __packed;
-
-#define SMP_CMD_IDENT_ADDR_INFO	0x09
-struct smp_cmd_ident_addr_info {
-	__u8	addr_type;
-	bdaddr_t bdaddr;
-} __packed;
-
-#define SMP_CMD_SIGN_INFO	0x0a
-struct smp_cmd_sign_info {
-	__u8	csrk[16];
-} __packed;
-
-#define SMP_CMD_SECURITY_REQ	0x0b
-struct smp_cmd_security_req {
-	__u8	auth_req;
-} __packed;
-
-#define SMP_PASSKEY_ENTRY_FAILED	0x01
-#define SMP_OOB_NOT_AVAIL		0x02
-#define SMP_AUTH_REQUIREMENTS		0x03
-#define SMP_CONFIRM_FAILED		0x04
-#define SMP_PAIRING_NOTSUPP		0x05
-#define SMP_ENC_KEY_SIZE		0x06
-#define SMP_CMD_NOTSUPP			0x07
-#define SMP_UNSPECIFIED			0x08
-#define SMP_REPEATED_ATTEMPTS		0x09
-
-#define SMP_MIN_ENC_KEY_SIZE		7
-#define SMP_MAX_ENC_KEY_SIZE		16
-
-#define SMP_FLAG_TK_VALID	1
-#define SMP_FLAG_CFM_PENDING	2
-#define SMP_FLAG_MITM_AUTH	3
-
-struct smp_chan {
-	struct l2cap_conn *conn;
-	u8		preq[7]; /* SMP Pairing Request */
-	u8		prsp[7]; /* SMP Pairing Response */
-	u8		prnd[16]; /* SMP Pairing Random (local) */
-	u8		rrnd[16]; /* SMP Pairing Random (remote) */
-	u8		pcnf[16]; /* SMP Pairing Confirm */
-	u8		tk[16]; /* SMP Temporary Key */
-	u8		enc_key_size;
-	unsigned long	smp_flags;
-	struct crypto_blkcipher	*tfm;
-	struct work_struct confirm;
-	struct work_struct random;
-
-};
-
-/* SMP Commands */
-int smp_conn_security(struct hci_conn *hcon, __u8 sec_level);
-int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb);
-int smp_distribute_keys(struct l2cap_conn *conn, __u8 force);
-int smp_user_confirm_reply(struct hci_conn *conn, u16 mgmt_op, __le32 passkey);
-
-void smp_chan_destroy(struct l2cap_conn *conn);
-
-#endif /* __SMP_H */
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 8141c8d83139..139587159200 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -28,8 +28,8 @@
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
-#include <net/bluetooth/smp.h>
 
+#include "smp.h"
 #include "a2mp.h"
 
 struct sco_param {
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 947e18691e92..a7d10c3596e3 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -36,8 +36,8 @@
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/l2cap.h>
-#include <net/bluetooth/smp.h>
 
+#include "smp.h"
 #include "a2mp.h"
 #include "amp.h"
 
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 1daa4c579eb2..69e42db8a707 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -32,7 +32,8 @@
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/l2cap.h>
-#include <net/bluetooth/smp.h>
+
+#include "smp.h"
 
 static struct bt_sock_list l2cap_sk_list = {
 	.lock = __RW_LOCK_UNLOCKED(l2cap_sk_list.lock)
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 9a069b532bde..143dd7319981 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -30,7 +30,8 @@
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/mgmt.h>
-#include <net/bluetooth/smp.h>
+
+#include "smp.h"
 
 #define MGMT_VERSION	1
 #define MGMT_REVISION	4
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 884b2081a262..9272094bd429 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -28,7 +28,8 @@
 #include <net/bluetooth/hci_core.h>
 #include <net/bluetooth/l2cap.h>
 #include <net/bluetooth/mgmt.h>
-#include <net/bluetooth/smp.h>
+
+#include "smp.h"
 
 #define SMP_TIMEOUT	msecs_to_jiffies(30000)
 
diff --git a/net/bluetooth/smp.h b/net/bluetooth/smp.h
new file mode 100644
index 000000000000..f8ba07f3e5fa
--- /dev/null
+++ b/net/bluetooth/smp.h
@@ -0,0 +1,146 @@
+/*
+   BlueZ - Bluetooth protocol stack for Linux
+   Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License version 2 as
+   published by the Free Software Foundation;
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+   IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+   CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+   COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+   SOFTWARE IS DISCLAIMED.
+*/
+
+#ifndef __SMP_H
+#define __SMP_H
+
+struct smp_command_hdr {
+	__u8	code;
+} __packed;
+
+#define SMP_CMD_PAIRING_REQ	0x01
+#define SMP_CMD_PAIRING_RSP	0x02
+struct smp_cmd_pairing {
+	__u8	io_capability;
+	__u8	oob_flag;
+	__u8	auth_req;
+	__u8	max_key_size;
+	__u8	init_key_dist;
+	__u8	resp_key_dist;
+} __packed;
+
+#define SMP_IO_DISPLAY_ONLY	0x00
+#define SMP_IO_DISPLAY_YESNO	0x01
+#define SMP_IO_KEYBOARD_ONLY	0x02
+#define SMP_IO_NO_INPUT_OUTPUT	0x03
+#define SMP_IO_KEYBOARD_DISPLAY	0x04
+
+#define SMP_OOB_NOT_PRESENT	0x00
+#define SMP_OOB_PRESENT		0x01
+
+#define SMP_DIST_ENC_KEY	0x01
+#define SMP_DIST_ID_KEY		0x02
+#define SMP_DIST_SIGN		0x04
+
+#define SMP_AUTH_NONE		0x00
+#define SMP_AUTH_BONDING	0x01
+#define SMP_AUTH_MITM		0x04
+
+#define SMP_CMD_PAIRING_CONFIRM	0x03
+struct smp_cmd_pairing_confirm {
+	__u8	confirm_val[16];
+} __packed;
+
+#define SMP_CMD_PAIRING_RANDOM	0x04
+struct smp_cmd_pairing_random {
+	__u8	rand_val[16];
+} __packed;
+
+#define SMP_CMD_PAIRING_FAIL	0x05
+struct smp_cmd_pairing_fail {
+	__u8	reason;
+} __packed;
+
+#define SMP_CMD_ENCRYPT_INFO	0x06
+struct smp_cmd_encrypt_info {
+	__u8	ltk[16];
+} __packed;
+
+#define SMP_CMD_MASTER_IDENT	0x07
+struct smp_cmd_master_ident {
+	__le16	ediv;
+	__u8	rand[8];
+} __packed;
+
+#define SMP_CMD_IDENT_INFO	0x08
+struct smp_cmd_ident_info {
+	__u8	irk[16];
+} __packed;
+
+#define SMP_CMD_IDENT_ADDR_INFO	0x09
+struct smp_cmd_ident_addr_info {
+	__u8	addr_type;
+	bdaddr_t bdaddr;
+} __packed;
+
+#define SMP_CMD_SIGN_INFO	0x0a
+struct smp_cmd_sign_info {
+	__u8	csrk[16];
+} __packed;
+
+#define SMP_CMD_SECURITY_REQ	0x0b
+struct smp_cmd_security_req {
+	__u8	auth_req;
+} __packed;
+
+#define SMP_PASSKEY_ENTRY_FAILED	0x01
+#define SMP_OOB_NOT_AVAIL		0x02
+#define SMP_AUTH_REQUIREMENTS		0x03
+#define SMP_CONFIRM_FAILED		0x04
+#define SMP_PAIRING_NOTSUPP		0x05
+#define SMP_ENC_KEY_SIZE		0x06
+#define SMP_CMD_NOTSUPP			0x07
+#define SMP_UNSPECIFIED			0x08
+#define SMP_REPEATED_ATTEMPTS		0x09
+
+#define SMP_MIN_ENC_KEY_SIZE		7
+#define SMP_MAX_ENC_KEY_SIZE		16
+
+#define SMP_FLAG_TK_VALID	1
+#define SMP_FLAG_CFM_PENDING	2
+#define SMP_FLAG_MITM_AUTH	3
+
+struct smp_chan {
+	struct l2cap_conn *conn;
+	u8		preq[7]; /* SMP Pairing Request */
+	u8		prsp[7]; /* SMP Pairing Response */
+	u8		prnd[16]; /* SMP Pairing Random (local) */
+	u8		rrnd[16]; /* SMP Pairing Random (remote) */
+	u8		pcnf[16]; /* SMP Pairing Confirm */
+	u8		tk[16]; /* SMP Temporary Key */
+	u8		enc_key_size;
+	unsigned long	smp_flags;
+	struct crypto_blkcipher	*tfm;
+	struct work_struct confirm;
+	struct work_struct random;
+
+};
+
+/* SMP Commands */
+int smp_conn_security(struct hci_conn *hcon, __u8 sec_level);
+int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb);
+int smp_distribute_keys(struct l2cap_conn *conn, __u8 force);
+int smp_user_confirm_reply(struct hci_conn *conn, u16 mgmt_op, __le32 passkey);
+
+void smp_chan_destroy(struct l2cap_conn *conn);
+
+#endif /* __SMP_H */
-- 
cgit 


From 57d17d70dfa4345fbe3e0d049504aa20626ed0e1 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 14:54:17 -0700
Subject: Bluetooth: Move skb->dev assignment for hdev->send into central place

The assignement of skb->dev is done all over the place. So it makes it
hard to eventually get rid of it. Move it all in one central place so
it gets assigned right before calling hdev->send driver callback.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 25 ++++++++++---------------
 net/bluetooth/hci_sock.c |  2 --
 2 files changed, 10 insertions(+), 17 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 593b4efb1d7f..925bd47c4a3c 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2697,10 +2697,8 @@ int hci_unregister_cb(struct hci_cb *cb)
 }
 EXPORT_SYMBOL(hci_unregister_cb);
 
-static int hci_send_frame(struct sk_buff *skb)
+static int hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
-
 	if (!hdev) {
 		kfree_skb(skb);
 		return -ENODEV;
@@ -2722,6 +2720,8 @@ static int hci_send_frame(struct sk_buff *skb)
 	/* Get rid of skb owner, prior to sending to the driver. */
 	skb_orphan(skb);
 
+	skb->dev = (void *) hdev;
+
 	return hdev->send(skb);
 }
 
@@ -2785,7 +2785,6 @@ static struct sk_buff *hci_prepare_cmd(struct hci_dev *hdev, u16 opcode,
 	BT_DBG("skb len %d", skb->len);
 
 	bt_cb(skb)->pkt_type = HCI_COMMAND_PKT;
-	skb->dev = (void *) hdev;
 
 	return skb;
 }
@@ -2929,7 +2928,6 @@ static void hci_queue_acl(struct hci_chan *chan, struct sk_buff_head *queue,
 		do {
 			skb = list; list = list->next;
 
-			skb->dev = (void *) hdev;
 			bt_cb(skb)->pkt_type = HCI_ACLDATA_PKT;
 			hci_add_acl_hdr(skb, conn->handle, flags);
 
@@ -2948,8 +2946,6 @@ void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags)
 
 	BT_DBG("%s chan %p flags 0x%4.4x", hdev->name, chan, flags);
 
-	skb->dev = (void *) hdev;
-
 	hci_queue_acl(chan, &chan->data_q, skb, flags);
 
 	queue_work(hdev->workqueue, &hdev->tx_work);
@@ -2970,7 +2966,6 @@ void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb)
 	skb_reset_transport_header(skb);
 	memcpy(skb_transport_header(skb), &hdr, HCI_SCO_HDR_SIZE);
 
-	skb->dev = (void *) hdev;
 	bt_cb(skb)->pkt_type = HCI_SCODATA_PKT;
 
 	skb_queue_tail(&conn->data_q, skb);
@@ -3235,7 +3230,7 @@ static void hci_sched_acl_pkt(struct hci_dev *hdev)
 			hci_conn_enter_active_mode(chan->conn,
 						   bt_cb(skb)->force_active);
 
-			hci_send_frame(skb);
+			hci_send_frame(hdev, skb);
 			hdev->acl_last_tx = jiffies;
 
 			hdev->acl_cnt--;
@@ -3287,7 +3282,7 @@ static void hci_sched_acl_blk(struct hci_dev *hdev)
 			hci_conn_enter_active_mode(chan->conn,
 						   bt_cb(skb)->force_active);
 
-			hci_send_frame(skb);
+			hci_send_frame(hdev, skb);
 			hdev->acl_last_tx = jiffies;
 
 			hdev->block_cnt -= blocks;
@@ -3340,7 +3335,7 @@ static void hci_sched_sco(struct hci_dev *hdev)
 	while (hdev->sco_cnt && (conn = hci_low_sent(hdev, SCO_LINK, &quote))) {
 		while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
 			BT_DBG("skb %p len %d", skb, skb->len);
-			hci_send_frame(skb);
+			hci_send_frame(hdev, skb);
 
 			conn->sent++;
 			if (conn->sent == ~0)
@@ -3364,7 +3359,7 @@ static void hci_sched_esco(struct hci_dev *hdev)
 						     &quote))) {
 		while (quote-- && (skb = skb_dequeue(&conn->data_q))) {
 			BT_DBG("skb %p len %d", skb, skb->len);
-			hci_send_frame(skb);
+			hci_send_frame(hdev, skb);
 
 			conn->sent++;
 			if (conn->sent == ~0)
@@ -3406,7 +3401,7 @@ static void hci_sched_le(struct hci_dev *hdev)
 
 			skb = skb_dequeue(&chan->data_q);
 
-			hci_send_frame(skb);
+			hci_send_frame(hdev, skb);
 			hdev->le_last_tx = jiffies;
 
 			cnt--;
@@ -3442,7 +3437,7 @@ static void hci_tx_work(struct work_struct *work)
 
 	/* Send next queued raw (unknown type) packet */
 	while ((skb = skb_dequeue(&hdev->raw_q)))
-		hci_send_frame(skb);
+		hci_send_frame(hdev, skb);
 }
 
 /* ----- HCI RX task (incoming data processing) ----- */
@@ -3688,7 +3683,7 @@ static void hci_cmd_work(struct work_struct *work)
 		hdev->sent_cmd = skb_clone(skb, GFP_KERNEL);
 		if (hdev->sent_cmd) {
 			atomic_dec(&hdev->cmd_cnt);
-			hci_send_frame(skb);
+			hci_send_frame(hdev, skb);
 			if (test_bit(HCI_RESET, &hdev->flags))
 				del_timer(&hdev->cmd_timer);
 			else
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 3beaa0594009..97f96ebdd56d 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -387,7 +387,6 @@ static void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data)
 	__net_timestamp(skb);
 
 	bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
-	skb->dev = (void *) hdev;
 	hci_send_to_sock(hdev, skb);
 	kfree_skb(skb);
 }
@@ -942,7 +941,6 @@ static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock,
 
 	bt_cb(skb)->pkt_type = *((unsigned char *) skb->data);
 	skb_pull(skb, 1);
-	skb->dev = (void *) hdev;
 
 	if (hci_pi(sk)->channel == HCI_CHANNEL_RAW &&
 	    bt_cb(skb)->pkt_type == HCI_COMMAND_PKT) {
-- 
cgit 


From 3d386acea090e7af3346de59d9e322f92128a4b1 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 14:54:18 -0700
Subject: Bluetooth: Remove pointless check of hci_send_frame parameter

The hdev parameter of hci_send_frame must be always valid. If the hdev
is not valid, it would not even make it to this stage. The callers
will have already accessed hdev at that point many times.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 925bd47c4a3c..47cf3a95dac0 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2699,11 +2699,6 @@ EXPORT_SYMBOL(hci_unregister_cb);
 
 static int hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	if (!hdev) {
-		kfree_skb(skb);
-		return -ENODEV;
-	}
-
 	BT_DBG("%s type %d len %d", hdev->name, bt_cb(skb)->pkt_type, skb->len);
 
 	/* Time stamp */
-- 
cgit 


From 5108699194dfccd8cc324ec6691b2bc810a317ab Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 14:54:19 -0700
Subject: Bluetooth: Remove return value from hci_send_frame() function

The return value of hci_send_frame() is never checked. So just make
this function void and print an error when the hdev->send driver
callback returns a negative value.

Having the error printed is actually an improvement over the
current situation where any driver error just gets ignored.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 47cf3a95dac0..6cc2f86499f8 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2697,7 +2697,7 @@ int hci_unregister_cb(struct hci_cb *cb)
 }
 EXPORT_SYMBOL(hci_unregister_cb);
 
-static int hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
+static void hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	BT_DBG("%s type %d len %d", hdev->name, bt_cb(skb)->pkt_type, skb->len);
 
@@ -2717,7 +2717,8 @@ static int hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 
 	skb->dev = (void *) hdev;
 
-	return hdev->send(skb);
+	if (hdev->send(skb) < 0)
+		BT_ERR("%s sending frame failed", hdev->name);
 }
 
 void hci_req_init(struct hci_request *req, struct hci_dev *hdev)
-- 
cgit 


From 90ab9d5510932e146a9443bf5a591f95d5b5ada8 Mon Sep 17 00:00:00 2001
From: "K. Y. Srinivasan" <kys@microsoft.com>
Date: Thu, 10 Oct 2013 15:30:24 -0700
Subject: x86, hyperv: Correctly guard the local APIC calibration code

The code that gets the local APIC timer frequency from the hypervisor
rather depends on there being a local APIC.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Link: http://lkml.kernel.org/r/1381444224-3303-1-git-send-email-kys@microsoft.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/kernel/cpu/mshyperv.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index 0a490ca278e7..628ff50ab75f 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -80,6 +80,7 @@ static void __init ms_hyperv_init_platform(void)
 	printk(KERN_INFO "HyperV: features 0x%x, hints 0x%x\n",
 	       ms_hyperv.features, ms_hyperv.hints);
 
+#ifdef CONFIG_X86_LOCAL_APIC
 	if (ms_hyperv.features & HV_X64_MSR_APIC_FREQUENCY_AVAILABLE) {
 		/*
 		 * Get the APIC frequency.
@@ -99,6 +100,7 @@ static void __init ms_hyperv_init_platform(void)
 			legacy_pic = &null_legacy_pic;
 		}
 	}
+#endif
 
 	if (ms_hyperv.features & HV_X64_MSR_TIME_REF_COUNT_AVAILABLE)
 		clocksource_register_hz(&hyperv_cs, NSEC_PER_SEC/100);
-- 
cgit 


From 3e6cee1786a13cb2308609b5f8c020e1754e37cf Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Wed, 2 Oct 2013 21:39:40 -0700
Subject: pinctrl: single: Add support for wake-up interrupts
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The pin control registers can have interrupts for example
for device wake-up. These interrupts can be treated as a
chained interrupt controller as suggested earlier by
Linus Walleij <linus.walleij@linaro.org>.

This patch adds support for interrupts in a way that
should be pretty generic, and works for the omaps that
support wake-up interrupts. On omaps, there's an
interrupt enable and interrupt status bit for each pin.
The two pinctrl domains on omaps share a single interrupt
from the PRM chained interrupt handler. Support for
other similar hardware should be easy to add.

Note that this patch does not attempt to handle the
wake-up interrupts automatically unlike the earlier
patches. This patch allows the device drivers to do
a request_irq() on the wake-up pins as needed. I'll
try to do also a separate generic patch for handling
the wake-up events automatically.

Also note that as this patch makes the pinctrl-single
an irq controller, the current bindings need some
extra trickery to use interrupts from two different
interrupt controllers for the same driver. So it
might be worth waiting a little on the patches
enabling the wake-up interrupts from drivers as there
should be a generic way to handle it coming. And also
there's been discussion of interrupts-extended binding
for using interrupts from multiple interrupt controllers.

In any case, this patch should be ready to go allowing
handling the wake-up interrupts in a generic way, or
separately from the device drivers.

Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Prakash Manjunathappa <prakash.pm@ti.com>
Cc: Roger Quadros <rogerq@ti.com>
Cc: linux-kernel@vger.kernel.org
Cc: Benoît Cousson <bcousson@baylibre.com>
Cc: devicetree@vger.kernel.org
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 .../devicetree/bindings/pinctrl/pinctrl-single.txt |  11 +
 drivers/pinctrl/pinctrl-single.c                   | 322 +++++++++++++++++++++
 2 files changed, 333 insertions(+)

diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-single.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-single.txt
index 5a02e30dd262..7069a0b84e3a 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-single.txt
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-single.txt
@@ -72,6 +72,13 @@ Optional properties:
 		/* pin base, nr pins & gpio function */
 		pinctrl-single,gpio-range = <&range 0 3 0 &range 3 9 1>;
 
+- interrupt-controller : standard interrupt controller binding if using
+  interrupts for wake-up events for example. In this case pinctrl-single
+  is set up as a chained interrupt controller and the wake-up interrupts
+  can be requested by the drivers using request_irq().
+
+- #interrupt-cells : standard interrupt binding if using interrupts
+
 This driver assumes that there is only one register for each pin (unless the
 pinctrl-single,bit-per-mux is set), and uses the common pinctrl bindings as
 specified in the pinctrl-bindings.txt document in this directory.
@@ -121,6 +128,8 @@ pmx_core: pinmux@4a100040 {
 	reg = <0x4a100040 0x0196>;
 	#address-cells = <1>;
 	#size-cells = <0>;
+	#interrupt-cells = <1>;
+	interrupt-controller;
 	pinctrl-single,register-width = <16>;
 	pinctrl-single,function-mask = <0xffff>;
 };
@@ -131,6 +140,8 @@ pmx_wkup: pinmux@4a31e040 {
 	reg = <0x4a31e040 0x0038>;
 	#address-cells = <1>;
 	#size-cells = <0>;
+	#interrupt-cells = <1>;
+	interrupt-controller;
 	pinctrl-single,register-width = <16>;
 	pinctrl-single,function-mask = <0xffff>;
 };
diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index f88d3d1b2b99..dad65df36f4b 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -15,10 +15,14 @@
 #include <linux/slab.h>
 #include <linux/err.h>
 #include <linux/list.h>
+#include <linux/interrupt.h>
+
+#include <linux/irqchip/chained_irq.h>
 
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/of_address.h>
+#include <linux/of_irq.h>
 
 #include <linux/pinctrl/pinctrl.h>
 #include <linux/pinctrl/pinmux.h>
@@ -152,9 +156,15 @@ struct pcs_name {
 /**
  * struct pcs_soc_data - SoC specific settings
  * @flags:	initial SoC specific PCS_FEAT_xxx values
+ * @irq:	optional interrupt for the controller
+ * @irq_enable_mask:	optional SoC specific interrupt enable mask
+ * @irq_status_mask:	optional SoC specific interrupt status mask
  */
 struct pcs_soc_data {
 	unsigned flags;
+	int irq;
+	unsigned irq_enable_mask;
+	unsigned irq_status_mask;
 };
 
 /**
@@ -165,6 +175,7 @@ struct pcs_soc_data {
  * @dev:	device entry
  * @pctl:	pin controller device
  * @flags:	mask of PCS_FEAT_xxx values
+ * @lock:	spinlock for register access
  * @mutex:	mutex protecting the lists
  * @width:	bits per mux register
  * @fmask:	function register mask
@@ -179,6 +190,9 @@ struct pcs_soc_data {
  * @pingroups:	list of pingroups
  * @functions:	list of functions
  * @gpiofuncs:	list of gpio functions
+ * @irqs:	list of interrupt registers
+ * @chip:	chip container for this instance
+ * @domain:	IRQ domain for this instance
  * @ngroups:	number of pingroups
  * @nfuncs:	number of functions
  * @desc:	pin controller descriptor
@@ -192,7 +206,11 @@ struct pcs_device {
 	struct device *dev;
 	struct pinctrl_dev *pctl;
 	unsigned flags;
+#define PCS_QUIRK_SHARED_IRQ	(1 << 2)
+#define PCS_FEAT_IRQ		(1 << 1)
 #define PCS_FEAT_PINCONF	(1 << 0)
+	struct pcs_soc_data socdata;
+	raw_spinlock_t lock;
 	struct mutex mutex;
 	unsigned width;
 	unsigned fmask;
@@ -208,6 +226,9 @@ struct pcs_device {
 	struct list_head pingroups;
 	struct list_head functions;
 	struct list_head gpiofuncs;
+	struct list_head irqs;
+	struct irq_chip chip;
+	struct irq_domain *domain;
 	unsigned ngroups;
 	unsigned nfuncs;
 	struct pinctrl_desc desc;
@@ -215,6 +236,8 @@ struct pcs_device {
 	void (*write)(unsigned val, void __iomem *reg);
 };
 
+#define PCS_QUIRK_HAS_SHARED_IRQ	(pcs->flags & PCS_QUIRK_SHARED_IRQ)
+#define PCS_HAS_IRQ		(pcs->flags & PCS_FEAT_IRQ)
 #define PCS_HAS_PINCONF		(pcs->flags & PCS_FEAT_PINCONF)
 
 static int pcs_pinconf_get(struct pinctrl_dev *pctldev, unsigned pin,
@@ -440,9 +463,11 @@ static int pcs_enable(struct pinctrl_dev *pctldev, unsigned fselector,
 
 	for (i = 0; i < func->nvals; i++) {
 		struct pcs_func_vals *vals;
+		unsigned long flags;
 		unsigned val, mask;
 
 		vals = &func->vals[i];
+		raw_spin_lock_irqsave(&pcs->lock, flags);
 		val = pcs->read(vals->reg);
 
 		if (pcs->bits_per_mux)
@@ -453,6 +478,7 @@ static int pcs_enable(struct pinctrl_dev *pctldev, unsigned fselector,
 		val &= ~mask;
 		val |= (vals->val & mask);
 		pcs->write(val, vals->reg);
+		raw_spin_unlock_irqrestore(&pcs->lock, flags);
 	}
 
 	return 0;
@@ -494,13 +520,16 @@ static void pcs_disable(struct pinctrl_dev *pctldev, unsigned fselector,
 
 	for (i = 0; i < func->nvals; i++) {
 		struct pcs_func_vals *vals;
+		unsigned long flags;
 		unsigned val;
 
 		vals = &func->vals[i];
+		raw_spin_lock_irqsave(&pcs->lock, flags);
 		val = pcs->read(vals->reg);
 		val &= ~pcs->fmask;
 		val |= pcs->foff << pcs->fshift;
 		pcs->write(val, vals->reg);
+		raw_spin_unlock_irqrestore(&pcs->lock, flags);
 	}
 }
 
@@ -1450,12 +1479,34 @@ static void pcs_free_pingroups(struct pcs_device *pcs)
 	mutex_unlock(&pcs->mutex);
 }
 
+/**
+ * pcs_irq_free() - free interrupt
+ * @pcs: pcs driver instance
+ */
+static void pcs_irq_free(struct pcs_device *pcs)
+{
+	struct pcs_soc_data *pcs_soc = &pcs->socdata;
+
+	if (pcs_soc->irq < 0)
+		return;
+
+	if (pcs->domain)
+		irq_domain_remove(pcs->domain);
+
+	if (PCS_QUIRK_HAS_SHARED_IRQ)
+		free_irq(pcs_soc->irq, pcs_soc);
+	else
+		irq_set_chained_handler(pcs_soc->irq, NULL);
+}
+
 /**
  * pcs_free_resources() - free memory used by this driver
  * @pcs: pcs driver instance
  */
 static void pcs_free_resources(struct pcs_device *pcs)
 {
+	pcs_irq_free(pcs);
+
 	if (pcs->pctl)
 		pinctrl_unregister(pcs->pctl);
 
@@ -1504,6 +1555,256 @@ static int pcs_add_gpio_func(struct device_node *node, struct pcs_device *pcs)
 	}
 	return ret;
 }
+/**
+ * @reg:	virtual address of interrupt register
+ * @hwirq:	hardware irq number
+ * @irq:	virtual irq number
+ * @node:	list node
+ */
+struct pcs_interrupt {
+	void __iomem *reg;
+	irq_hw_number_t hwirq;
+	unsigned int irq;
+	struct list_head node;
+};
+
+/**
+ * pcs_irq_set() - enables or disables an interrupt
+ *
+ * Note that this currently assumes one interrupt per pinctrl
+ * register that is typically used for wake-up events.
+ */
+static inline void pcs_irq_set(struct pcs_soc_data *pcs_soc,
+			       int irq, const bool enable)
+{
+	struct pcs_device *pcs;
+	struct list_head *pos;
+	unsigned mask;
+
+	pcs = container_of(pcs_soc, struct pcs_device, socdata);
+	list_for_each(pos, &pcs->irqs) {
+		struct pcs_interrupt *pcswi;
+		unsigned soc_mask;
+
+		pcswi = list_entry(pos, struct pcs_interrupt, node);
+		if (irq != pcswi->irq)
+			continue;
+
+		soc_mask = pcs_soc->irq_enable_mask;
+		raw_spin_lock(&pcs->lock);
+		mask = pcs->read(pcswi->reg);
+		if (enable)
+			mask |= soc_mask;
+		else
+			mask &= ~soc_mask;
+		pcs->write(mask, pcswi->reg);
+		raw_spin_unlock(&pcs->lock);
+	}
+}
+
+/**
+ * pcs_irq_mask() - mask pinctrl interrupt
+ * @d: interrupt data
+ */
+static void pcs_irq_mask(struct irq_data *d)
+{
+	struct pcs_soc_data *pcs_soc = irq_data_get_irq_chip_data(d);
+
+	pcs_irq_set(pcs_soc, d->irq, false);
+}
+
+/**
+ * pcs_irq_unmask() - unmask pinctrl interrupt
+ * @d: interrupt data
+ */
+static void pcs_irq_unmask(struct irq_data *d)
+{
+	struct pcs_soc_data *pcs_soc = irq_data_get_irq_chip_data(d);
+
+	pcs_irq_set(pcs_soc, d->irq, true);
+}
+
+/**
+ * pcs_irq_set_wake() - toggle the suspend and resume wake up
+ * @d: interrupt data
+ * @state: wake-up state
+ *
+ * Note that this should be called only for suspend and resume.
+ * For runtime PM, the wake-up events should be enabled by default.
+ */
+static int pcs_irq_set_wake(struct irq_data *d, unsigned int state)
+{
+	if (state)
+		pcs_irq_unmask(d);
+	else
+		pcs_irq_mask(d);
+
+	return 0;
+}
+
+/**
+ * pcs_irq_handle() - common interrupt handler
+ * @pcs_irq: interrupt data
+ *
+ * Note that this currently assumes we have one interrupt bit per
+ * mux register. This interrupt is typically used for wake-up events.
+ * For more complex interrupts different handlers can be specified.
+ */
+static int pcs_irq_handle(struct pcs_soc_data *pcs_soc)
+{
+	struct pcs_device *pcs;
+	struct list_head *pos;
+	int count = 0;
+
+	pcs = container_of(pcs_soc, struct pcs_device, socdata);
+	list_for_each(pos, &pcs->irqs) {
+		struct pcs_interrupt *pcswi;
+		unsigned mask;
+
+		pcswi = list_entry(pos, struct pcs_interrupt, node);
+		raw_spin_lock(&pcs->lock);
+		mask = pcs->read(pcswi->reg);
+		raw_spin_unlock(&pcs->lock);
+		if (mask & pcs_soc->irq_status_mask) {
+			generic_handle_irq(irq_find_mapping(pcs->domain,
+							    pcswi->hwirq));
+			count++;
+		}
+	}
+
+	return count;
+}
+
+/**
+ * pcs_irq_handler() - handler for the shared interrupt case
+ * @irq: interrupt
+ * @d: data
+ *
+ * Use this for cases where multiple instances of
+ * pinctrl-single share a single interrupt like on omaps.
+ */
+static irqreturn_t pcs_irq_handler(int irq, void *d)
+{
+	struct pcs_soc_data *pcs_soc = d;
+
+	return pcs_irq_handle(pcs_soc) ? IRQ_HANDLED : IRQ_NONE;
+}
+
+/**
+ * pcs_irq_handle() - handler for the dedicated chained interrupt case
+ * @irq: interrupt
+ * @desc: interrupt descriptor
+ *
+ * Use this if you have a separate interrupt for each
+ * pinctrl-single instance.
+ */
+static void pcs_irq_chain_handler(unsigned int irq, struct irq_desc *desc)
+{
+	struct pcs_soc_data *pcs_soc = irq_desc_get_handler_data(desc);
+	struct irq_chip *chip;
+	int res;
+
+	chip = irq_get_chip(irq);
+	chained_irq_enter(chip, desc);
+	res = pcs_irq_handle(pcs_soc);
+	/* REVISIT: export and add handle_bad_irq(irq, desc)? */
+	chained_irq_exit(chip, desc);
+
+	return;
+}
+
+static int pcs_irqdomain_map(struct irq_domain *d, unsigned int irq,
+			     irq_hw_number_t hwirq)
+{
+	struct pcs_soc_data *pcs_soc = d->host_data;
+	struct pcs_device *pcs;
+	struct pcs_interrupt *pcswi;
+
+	pcs = container_of(pcs_soc, struct pcs_device, socdata);
+	pcswi = devm_kzalloc(pcs->dev, sizeof(*pcswi), GFP_KERNEL);
+	if (!pcswi)
+		return -ENOMEM;
+
+	pcswi->reg = pcs->base + hwirq;
+	pcswi->hwirq = hwirq;
+	pcswi->irq = irq;
+
+	mutex_lock(&pcs->mutex);
+	list_add_tail(&pcswi->node, &pcs->irqs);
+	mutex_unlock(&pcs->mutex);
+
+	irq_set_chip_data(irq, pcs_soc);
+	irq_set_chip_and_handler(irq, &pcs->chip,
+				 handle_level_irq);
+	set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+
+	return 0;
+}
+
+static struct irq_domain_ops pcs_irqdomain_ops = {
+	.map = pcs_irqdomain_map,
+	.xlate = irq_domain_xlate_onecell,
+};
+
+/**
+ * pcs_irq_init_chained_handler() - set up a chained interrupt handler
+ * @pcs: pcs driver instance
+ * @np: device node pointer
+ */
+static int pcs_irq_init_chained_handler(struct pcs_device *pcs,
+					struct device_node *np)
+{
+	struct pcs_soc_data *pcs_soc = &pcs->socdata;
+	const char *name = "pinctrl";
+	int num_irqs;
+
+	if (!pcs_soc->irq_enable_mask ||
+	    !pcs_soc->irq_status_mask) {
+		pcs_soc->irq = -1;
+		return -EINVAL;
+	}
+
+	INIT_LIST_HEAD(&pcs->irqs);
+	pcs->chip.name = name;
+	pcs->chip.irq_ack = pcs_irq_mask;
+	pcs->chip.irq_mask = pcs_irq_mask;
+	pcs->chip.irq_unmask = pcs_irq_unmask;
+	pcs->chip.irq_set_wake = pcs_irq_set_wake;
+
+	if (PCS_QUIRK_HAS_SHARED_IRQ) {
+		int res;
+
+		res = request_irq(pcs_soc->irq, pcs_irq_handler,
+				  IRQF_SHARED | IRQF_NO_SUSPEND,
+				  name, pcs_soc);
+		if (res) {
+			pcs_soc->irq = -1;
+			return res;
+		}
+	} else {
+		irq_set_handler_data(pcs_soc->irq, pcs_soc);
+		irq_set_chained_handler(pcs_soc->irq,
+					pcs_irq_chain_handler);
+	}
+
+	/*
+	 * We can use the register offset as the hardirq
+	 * number as irq_domain_add_simple maps them lazily.
+	 * This way we can easily support more than one
+	 * interrupt per function if needed.
+	 */
+	num_irqs = pcs->size;
+
+	pcs->domain = irq_domain_add_simple(np, num_irqs, 0,
+					    &pcs_irqdomain_ops,
+					    pcs_soc);
+	if (!pcs->domain) {
+		irq_set_chained_handler(pcs_soc->irq, NULL);
+		return -EINVAL;
+	}
+
+	return 0;
+}
 
 #ifdef CONFIG_PM
 static int pinctrl_single_suspend(struct platform_device *pdev,
@@ -1549,12 +1850,14 @@ static int pcs_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 	pcs->dev = &pdev->dev;
+	raw_spin_lock_init(&pcs->lock);
 	mutex_init(&pcs->mutex);
 	INIT_LIST_HEAD(&pcs->pingroups);
 	INIT_LIST_HEAD(&pcs->functions);
 	INIT_LIST_HEAD(&pcs->gpiofuncs);
 	soc = match->data;
 	pcs->flags = soc->flags;
+	memcpy(&pcs->socdata, soc, sizeof(*soc));
 
 	PCS_GET_PROP_U32("pinctrl-single,register-width", &pcs->width,
 			 "register width not specified\n");
@@ -1642,6 +1945,16 @@ static int pcs_probe(struct platform_device *pdev)
 	if (ret < 0)
 		goto free;
 
+	pcs->socdata.irq = irq_of_parse_and_map(np, 0);
+	if (pcs->socdata.irq)
+		pcs->flags |= PCS_FEAT_IRQ;
+
+	if (PCS_HAS_IRQ) {
+		ret = pcs_irq_init_chained_handler(pcs, np);
+		if (ret < 0)
+			dev_warn(pcs->dev, "initialized with no interrupts\n");
+	}
+
 	dev_info(pcs->dev, "%i pins at pa %p size %u\n",
 		 pcs->desc.npins, pcs->base, pcs->size);
 
@@ -1665,6 +1978,12 @@ static int pcs_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct pcs_soc_data pinctrl_single_omap_wkup = {
+	.flags = PCS_QUIRK_SHARED_IRQ,
+	.irq_enable_mask = (1 << 14),	/* OMAP_WAKEUP_EN */
+	.irq_status_mask = (1 << 15),	/* OMAP_WAKEUP_EVENT */
+};
+
 static const struct pcs_soc_data pinctrl_single = {
 };
 
@@ -1673,6 +1992,9 @@ static const struct pcs_soc_data pinconf_single = {
 };
 
 static struct of_device_id pcs_of_match[] = {
+	{ .compatible = "ti,omap3-padconf", .data = &pinctrl_single_omap_wkup },
+	{ .compatible = "ti,omap4-padconf", .data = &pinctrl_single_omap_wkup },
+	{ .compatible = "ti,omap5-padconf", .data = &pinctrl_single_omap_wkup },
 	{ .compatible = "pinctrl-single", .data = &pinctrl_single },
 	{ .compatible = "pinconf-single", .data = &pinconf_single },
 	{ },
-- 
cgit 


From dc7743aa3c49fabbc6dc9edbcf7df74d776ac32e Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Wed, 2 Oct 2013 21:39:40 -0700
Subject: pinctrl: single: Add support for auxdata

For omaps, we still have dependencies to the legacy code
for handling the PRM (Power Reset Management) interrupts,
and also for reconfiguring the io wake-up chain after
changes.

Let's pass the PRM interrupt and the rearm functions via
auxdata. Then when at some point we have a proper PRM
driver, we can get the interrupt via device tree and
set up the rearm function as exported function in the
PRM driver.

By using auxdata we can remove a dependency to the
wake-up events for converting omap3 to be device
tree only.

Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Prakash Manjunathappa <prakash.pm@ti.com>
Cc: Roger Quadros <rogerq@ti.com>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: linux-kernel@vger.kernel.org
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 drivers/pinctrl/pinctrl-single.c             | 23 +++++++++++++++++++++++
 include/linux/platform_data/pinctrl-single.h | 12 ++++++++++++
 2 files changed, 35 insertions(+)
 create mode 100644 include/linux/platform_data/pinctrl-single.h

diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index dad65df36f4b..c2aada71c915 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -28,6 +28,8 @@
 #include <linux/pinctrl/pinmux.h>
 #include <linux/pinctrl/pinconf-generic.h>
 
+#include <linux/platform_data/pinctrl-single.h>
+
 #include "core.h"
 #include "pinconf.h"
 
@@ -159,12 +161,14 @@ struct pcs_name {
  * @irq:	optional interrupt for the controller
  * @irq_enable_mask:	optional SoC specific interrupt enable mask
  * @irq_status_mask:	optional SoC specific interrupt status mask
+ * @rearm:	optional SoC specific wake-up rearm function
  */
 struct pcs_soc_data {
 	unsigned flags;
 	int irq;
 	unsigned irq_enable_mask;
 	unsigned irq_status_mask;
+	void (*rearm)(void);
 };
 
 /**
@@ -1622,6 +1626,8 @@ static void pcs_irq_unmask(struct irq_data *d)
 	struct pcs_soc_data *pcs_soc = irq_data_get_irq_chip_data(d);
 
 	pcs_irq_set(pcs_soc, d->irq, true);
+	if (pcs_soc->rearm)
+		pcs_soc->rearm();
 }
 
 /**
@@ -1672,6 +1678,11 @@ static int pcs_irq_handle(struct pcs_soc_data *pcs_soc)
 		}
 	}
 
+	/*
+	 * For debugging on omaps, you may want to call pcs_soc->rearm()
+	 * here to see wake-up interrupts during runtime also.
+	 */
+
 	return count;
 }
 
@@ -1835,6 +1846,7 @@ static int pcs_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
 	const struct of_device_id *match;
+	struct pcs_pdata *pdata;
 	struct resource *res;
 	struct pcs_device *pcs;
 	const struct pcs_soc_data *soc;
@@ -1949,6 +1961,17 @@ static int pcs_probe(struct platform_device *pdev)
 	if (pcs->socdata.irq)
 		pcs->flags |= PCS_FEAT_IRQ;
 
+	/* We still need auxdata for some omaps for PRM interrupts */
+	pdata = dev_get_platdata(&pdev->dev);
+	if (pdata) {
+		if (pdata->rearm)
+			pcs->socdata.rearm = pdata->rearm;
+		if (pdata->irq) {
+			pcs->socdata.irq = pdata->irq;
+			pcs->flags |= PCS_FEAT_IRQ;
+		}
+	}
+
 	if (PCS_HAS_IRQ) {
 		ret = pcs_irq_init_chained_handler(pcs, np);
 		if (ret < 0)
diff --git a/include/linux/platform_data/pinctrl-single.h b/include/linux/platform_data/pinctrl-single.h
new file mode 100644
index 000000000000..72eacda9b360
--- /dev/null
+++ b/include/linux/platform_data/pinctrl-single.h
@@ -0,0 +1,12 @@
+/**
+ * irq:		optional wake-up interrupt
+ * rearm:	optional soc specific rearm function
+ *
+ * Note that the irq and rearm setup should come from device
+ * tree except for omap where there are still some dependencies
+ * to the legacy PRM code.
+ */
+struct pcs_pdata {
+	int irq;
+	void (*rearm)(void);
+};
-- 
cgit 


From 8651bd8ce36fb324c218167c970d6734dc825f2c Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Thu, 10 Oct 2013 15:45:12 -0700
Subject: ARM: OMAP2+: Add support for auxdata

For few things we're still going to be needing platform
data for device tree based drivers. Let's set up auxdata
handling and do it in pdata-quirks.c so we have all the
legacy calls in one place.

Reviewed-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-generic.c |  5 +----
 arch/arm/mach-omap2/common.h        |  3 ++-
 arch/arm/mach-omap2/pdata-quirks.c  | 11 ++++++++++-
 3 files changed, 13 insertions(+), 6 deletions(-)

diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index a66575f33973..3017a9d67ac8 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -35,10 +35,7 @@ static struct of_device_id omap_dt_match_table[] __initdata = {
 
 static void __init omap_generic_init(void)
 {
-	omap_sdrc_init(NULL, NULL);
-
-	of_platform_populate(NULL, omap_dt_match_table, NULL, NULL);
-	pdata_quirks_init();
+	pdata_quirks_init(omap_dt_match_table);
 }
 
 #ifdef CONFIG_SOC_OMAP2420
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index fd059e02574d..c6aebf0b42d8 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -288,7 +288,8 @@ static inline void omap4_cpu_resume(void)
 
 #endif
 
-void pdata_quirks_init(void);
+void pdata_quirks_init(struct of_device_id *);
+void omap_pcs_legacy_init(int irq, void (*rearm)(void));
 
 struct omap_sdrc_params;
 extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index 9113e7037ae5..76abc5b63d6d 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -11,6 +11,7 @@
 #include <linux/gpio.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
+#include <linux/of_platform.h>
 #include <linux/wl12xx.h>
 
 #include "common.h"
@@ -104,6 +105,10 @@ static void __init omap5_uevm_legacy_init(void)
 }
 #endif
 
+struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
+	{ /* sentinel */ },
+};
+
 static struct pdata_init pdata_quirks[] __initdata = {
 #ifdef CONFIG_ARCH_OMAP3
 	{ "nokia,omap3-n9", hsmmc2_internal_input_clk, },
@@ -120,10 +125,14 @@ static struct pdata_init pdata_quirks[] __initdata = {
 	{ /* sentinel */ },
 };
 
-void __init pdata_quirks_init(void)
+void __init pdata_quirks_init(struct of_device_id *omap_dt_match_table)
 {
 	struct pdata_init *quirks = pdata_quirks;
 
+	omap_sdrc_init(NULL, NULL);
+	of_platform_populate(NULL, omap_dt_match_table,
+			     omap_auxdata_lookup, NULL);
+
 	while (quirks->compatible) {
 		if (of_machine_is_compatible(quirks->compatible)) {
 			if (quirks->fn)
-- 
cgit 


From 30a69ef785e87c791aab0b4dae76709a7baa3e85 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Thu, 10 Oct 2013 15:45:13 -0700
Subject: ARM: OMAP: Move DT wake-up event handling over to use
 pinctrl-single-omap

Now pinctrl-single-omap can handle the wake-up events for us now
as long as the events are configured in the .dts files.

Done in collaboration with Roger Quadros <rogerq@ti.com>.

Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: Grygorii Strashko <grygorii.strashko@ti.com>
Cc: Prakash Manjunathappa <prakash.pm@ti.com>
Cc: Roger Quadros <rogerq@ti.com>
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap3.dtsi       |  4 ++++
 arch/arm/boot/dts/omap4.dtsi       |  4 ++++
 arch/arm/mach-omap2/mux.c          |  8 ++++++--
 arch/arm/mach-omap2/pdata-quirks.c | 18 ++++++++++++++++++
 arch/arm/mach-omap2/prm3xxx.h      |  8 +++++++-
 arch/arm/mach-omap2/prm44xx_54xx.h |  8 +++++++-
 arch/arm/mach-omap2/prm_common.c   | 11 +++++++++++
 7 files changed, 57 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index 7d95cda1fae4..695e2d34c9c6 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -107,6 +107,8 @@
 			reg = <0x48002030 0x05cc>;
 			#address-cells = <1>;
 			#size-cells = <0>;
+			#interrupt-cells = <1>;
+			interrupt-controller;
 			pinctrl-single,register-width = <16>;
 			pinctrl-single,function-mask = <0x7f1f>;
 		};
@@ -116,6 +118,8 @@
 			reg = <0x48002a00 0x5c>;
 			#address-cells = <1>;
 			#size-cells = <0>;
+			#interrupt-cells = <1>;
+			interrupt-controller;
 			pinctrl-single,register-width = <16>;
 			pinctrl-single,function-mask = <0x7f1f>;
 		};
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 22d9f2b593d4..0415d5ed6014 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -114,6 +114,8 @@
 			reg = <0x4a100040 0x0196>;
 			#address-cells = <1>;
 			#size-cells = <0>;
+			#interrupt-cells = <1>;
+			interrupt-controller;
 			pinctrl-single,register-width = <16>;
 			pinctrl-single,function-mask = <0x7fff>;
 		};
@@ -122,6 +124,8 @@
 			reg = <0x4a31e040 0x0038>;
 			#address-cells = <1>;
 			#size-cells = <0>;
+			#interrupt-cells = <1>;
+			interrupt-controller;
 			pinctrl-single,register-width = <16>;
 			pinctrl-single,function-mask = <0x7fff>;
 		};
diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c
index f82cf878d6af..48094b58c88f 100644
--- a/arch/arm/mach-omap2/mux.c
+++ b/arch/arm/mach-omap2/mux.c
@@ -811,6 +811,12 @@ int __init omap_mux_late_init(void)
 		}
 	}
 
+	omap_mux_dbg_init();
+
+	/* see pinctrl-single-omap for the wake-up interrupt handling */
+	if (of_have_populated_dt())
+		return 0;
+
 	ret = request_irq(omap_prcm_event_to_irq("io"),
 		omap_hwmod_mux_handle_irq, IRQF_SHARED | IRQF_NO_SUSPEND,
 			"hwmod_io", omap_mux_late_init);
@@ -818,8 +824,6 @@ int __init omap_mux_late_init(void)
 	if (ret)
 		pr_warning("mux: Failed to setup hwmod io irq %d\n", ret);
 
-	omap_mux_dbg_init();
-
 	return 0;
 }
 
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index 76abc5b63d6d..18afbde020f7 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -14,6 +14,8 @@
 #include <linux/of_platform.h>
 #include <linux/wl12xx.h>
 
+#include <linux/platform_data/pinctrl-single.h>
+
 #include "common.h"
 #include "common-board-devices.h"
 #include "dss-common.h"
@@ -105,7 +107,23 @@ static void __init omap5_uevm_legacy_init(void)
 }
 #endif
 
+static struct pcs_pdata pcs_pdata;
+
+void omap_pcs_legacy_init(int irq, void (*rearm)(void))
+{
+	pcs_pdata.irq = irq;
+	pcs_pdata.rearm = rearm;
+}
+
 struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
+#ifdef CONFIG_ARCH_OMAP3
+	OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002030, "48002030.pinmux", &pcs_pdata),
+	OF_DEV_AUXDATA("ti,omap3-padconf", 0x48002a00, "48002a00.pinmux", &pcs_pdata),
+#endif
+#ifdef CONFIG_ARCH_OMAP4
+	OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a100040, "4a100040.pinmux", &pcs_pdata),
+	OF_DEV_AUXDATA("ti,omap4-padconf", 0x4a31e040, "4a31e040.pinmux", &pcs_pdata),
+#endif
 	{ /* sentinel */ },
 };
 
diff --git a/arch/arm/mach-omap2/prm3xxx.h b/arch/arm/mach-omap2/prm3xxx.h
index 277f71794e61..f8eb83323b1a 100644
--- a/arch/arm/mach-omap2/prm3xxx.h
+++ b/arch/arm/mach-omap2/prm3xxx.h
@@ -144,7 +144,13 @@ extern u32 omap3_prm_vcvp_read(u8 offset);
 extern void omap3_prm_vcvp_write(u32 val, u8 offset);
 extern u32 omap3_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
 
-extern void omap3xxx_prm_reconfigure_io_chain(void);
+#ifdef CONFIG_ARCH_OMAP3
+void omap3xxx_prm_reconfigure_io_chain(void);
+#else
+static inline void omap3xxx_prm_reconfigure_io_chain(void)
+{
+}
+#endif
 
 /* PRM interrupt-related functions */
 extern void omap3xxx_prm_read_pending_irqs(unsigned long *events);
diff --git a/arch/arm/mach-omap2/prm44xx_54xx.h b/arch/arm/mach-omap2/prm44xx_54xx.h
index 7cd22abb8f15..a085d9cc1f5d 100644
--- a/arch/arm/mach-omap2/prm44xx_54xx.h
+++ b/arch/arm/mach-omap2/prm44xx_54xx.h
@@ -42,7 +42,13 @@ extern u32 omap4_prm_vcvp_read(u8 offset);
 extern void omap4_prm_vcvp_write(u32 val, u8 offset);
 extern u32 omap4_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
 
-extern void omap44xx_prm_reconfigure_io_chain(void);
+#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
+void omap44xx_prm_reconfigure_io_chain(void);
+#else
+static inline void omap44xx_prm_reconfigure_io_chain(void)
+{
+}
+#endif
 
 /* PRM interrupt-related functions */
 extern void omap44xx_prm_read_pending_irqs(unsigned long *events);
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index 228b850e632f..a2e1174ad1b6 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -24,6 +24,7 @@
 #include <linux/interrupt.h>
 #include <linux/slab.h>
 
+#include "soc.h"
 #include "prm2xxx_3xxx.h"
 #include "prm2xxx.h"
 #include "prm3xxx.h"
@@ -322,6 +323,16 @@ int omap_prcm_register_chain_handler(struct omap_prcm_irq_setup *irq_setup)
 		prcm_irq_chips[i] = gc;
 	}
 
+	if (of_have_populated_dt()) {
+		int irq = omap_prcm_event_to_irq("io");
+		if (cpu_is_omap34xx())
+			omap_pcs_legacy_init(irq,
+				omap3xxx_prm_reconfigure_io_chain);
+		else
+			omap_pcs_legacy_init(irq,
+				omap44xx_prm_reconfigure_io_chain);
+	}
+
 	return 0;
 
 err:
-- 
cgit 


From fc20ffe1213beb09bb7fb6687b404fe48183a55e Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Sun, 14 Jul 2013 17:17:39 -0400
Subject: ARM: keystone: add PM domain support for clock management

Add runtime PM core support to Keystone SOCs by using the pm_clk
infrastructure of the PM core. Patch is based on Kevin's pm_domain
work on DaVinci SOCs.

Keystone SOC doesn't have depedency to enable clocks in early
in the boot and hence the clock and PM domain initialisation is done
at subsys_init() level.

Cc: Kevin Hilman <khilman@linaro.org>

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
 arch/arm/mach-keystone/Makefile    |  3 ++
 arch/arm/mach-keystone/pm_domain.c | 70 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 73 insertions(+)
 create mode 100644 arch/arm/mach-keystone/pm_domain.c

diff --git a/arch/arm/mach-keystone/Makefile b/arch/arm/mach-keystone/Makefile
index ddc52b05dc84..25d92396fbfa 100644
--- a/arch/arm/mach-keystone/Makefile
+++ b/arch/arm/mach-keystone/Makefile
@@ -4,3 +4,6 @@ plus_sec := $(call as-instr,.arch_extension sec,+sec)
 AFLAGS_smc.o				:=-Wa,-march=armv7-a$(plus_sec)
 
 obj-$(CONFIG_SMP)			+= platsmp.o
+
+# PM domain driver for Keystone SOCs
+obj-$(CONFIG_ARCH_KEYSTONE)		+= pm_domain.o
diff --git a/arch/arm/mach-keystone/pm_domain.c b/arch/arm/mach-keystone/pm_domain.c
new file mode 100644
index 000000000000..beac3fb1d205
--- /dev/null
+++ b/arch/arm/mach-keystone/pm_domain.c
@@ -0,0 +1,70 @@
+/*
+ * PM domain driver for Keystone2 devices
+ *
+ * Copyright 2013 Texas Instruments, Inc.
+ *	Santosh Shilimkar <santosh.shillimkar@ti.com>
+ *
+ * Based on Kevins work on DAVINCI SOCs
+ *	Kevin Hilman <khilman@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/init.h>
+#include <linux/pm_runtime.h>
+#include <linux/pm_clock.h>
+#include <linux/platform_device.h>
+#include <linux/clk-provider.h>
+
+#ifdef CONFIG_PM_RUNTIME
+static int keystone_pm_runtime_suspend(struct device *dev)
+{
+	int ret;
+
+	dev_dbg(dev, "%s\n", __func__);
+
+	ret = pm_generic_runtime_suspend(dev);
+	if (ret)
+		return ret;
+
+	ret = pm_clk_suspend(dev);
+	if (ret) {
+		pm_generic_runtime_resume(dev);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int keystone_pm_runtime_resume(struct device *dev)
+{
+	dev_dbg(dev, "%s\n", __func__);
+
+	pm_clk_resume(dev);
+
+	return pm_generic_runtime_resume(dev);
+}
+#endif
+
+static struct dev_pm_domain keystone_pm_domain = {
+	.ops = {
+		SET_RUNTIME_PM_OPS(keystone_pm_runtime_suspend,
+				   keystone_pm_runtime_resume, NULL)
+		USE_PLATFORM_PM_SLEEP_OPS
+	},
+};
+
+static struct pm_clk_notifier_block platform_domain_notifier = {
+	.pm_domain = &keystone_pm_domain,
+};
+
+int __init keystone_pm_runtime_init(void)
+{
+	of_clk_init(NULL);
+	pm_clk_add_notifier(&platform_bus_type, &platform_domain_notifier);
+
+	return 0;
+}
+subsys_initcall(keystone_pm_runtime_init);
-- 
cgit 


From 6120ac2328a1c62f2a0a56ba78befdad2661a3e3 Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Tue, 23 Jul 2013 20:07:07 -0400
Subject: ARM: dts: keystone: Add i2c device nodes

Keystone2 based SOCs supports 3 instances of i2c controllers. Add
the device nodes for them. The i2c0 child device AT24C1024 EEPROM node
is also added. When different board variants are added in future, it
can be moved to the supported boards from common SOC file.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
 arch/arm/boot/dts/keystone.dts | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm/boot/dts/keystone.dts b/arch/arm/boot/dts/keystone.dts
index 6c5f92a470e3..ee9195404f6e 100644
--- a/arch/arm/boot/dts/keystone.dts
+++ b/arch/arm/boot/dts/keystone.dts
@@ -122,5 +122,35 @@
 			interrupts = <GIC_SPI 280 IRQ_TYPE_EDGE_RISING>;
 		};
 
+		i2c0: i2c@2530000 {
+			compatible = "ti,davinci-i2c";
+			reg = <0x02530000 0x400>;
+			clock-frequency = <100000>;
+			clocks = <&clki2c>;
+			interrupts = <GIC_SPI 283 IRQ_TYPE_EDGE_RISING>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			dtt@50 {
+				compatible = "at,24c1024";
+				reg = <0x50>;
+			};
+		};
+
+		i2c1: i2c@2530400 {
+			compatible = "ti,davinci-i2c";
+			reg = <0x02530400 0x400>;
+			clock-frequency = <100000>;
+			clocks = <&clki2c>;
+			interrupts = <GIC_SPI 286 IRQ_TYPE_EDGE_RISING>;
+		};
+
+		i2c2: i2c@2530800 {
+			compatible = "ti,davinci-i2c";
+			reg = <0x02530800 0x400>;
+			clock-frequency = <100000>;
+			clocks = <&clki2c>;
+			interrupts = <GIC_SPI 289 IRQ_TYPE_EDGE_RISING>;
+		};
 	};
 };
-- 
cgit 


From b3bd6c598082d6ac14c907b14e1543d74371e991 Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Tue, 23 Jul 2013 20:25:23 -0400
Subject: ARM: dts: keystone: Add the SPI nodes

Keystone2 based SOCs supports 3 instances of SPI controllers. Add
the device nodes for them.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
 arch/arm/boot/dts/keystone.dts | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm/boot/dts/keystone.dts b/arch/arm/boot/dts/keystone.dts
index ee9195404f6e..100bdf52b847 100644
--- a/arch/arm/boot/dts/keystone.dts
+++ b/arch/arm/boot/dts/keystone.dts
@@ -152,5 +152,32 @@
 			clocks = <&clki2c>;
 			interrupts = <GIC_SPI 289 IRQ_TYPE_EDGE_RISING>;
 		};
+
+		spi0: spi@21000400 {
+			compatible = "ti,dm6441-spi";
+			reg = <0x21000400 0x200>;
+			num-cs = <4>;
+			ti,davinci-spi-intr-line = <0>;
+			interrupts = <GIC_SPI 292 IRQ_TYPE_EDGE_RISING>;
+			clocks = <&clkspi>;
+		};
+
+		spi1: spi@21000600 {
+			compatible = "ti,dm6441-spi";
+			reg = <0x21000600 0x200>;
+			num-cs = <4>;
+			ti,davinci-spi-intr-line = <0>;
+			interrupts = <GIC_SPI 296 IRQ_TYPE_EDGE_RISING>;
+			clocks = <&clkspi>;
+		};
+
+		spi2: spi@21000800 {
+			compatible = "ti,dm6441-spi";
+			reg = <0x21000800 0x200>;
+			num-cs = <4>;
+			ti,davinci-spi-intr-line = <0>;
+			interrupts = <GIC_SPI 300 IRQ_TYPE_EDGE_RISING>;
+			clocks = <&clkspi>;
+		};
 	};
 };
-- 
cgit 


From e7ed8b40e417bf0c9c323427ec3ca702c7e249eb Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Mon, 30 Sep 2013 11:04:42 -0400
Subject: dma: Allow TI_EDMA selectable for ARCH_KEYSTONE

Allow the TI_EDMA to be built for ARCH_KEYSTONE which also supports
the EDMA IP.

Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
 drivers/dma/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index f238cfd33847..56fe803adcb1 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -195,7 +195,7 @@ config SIRF_DMA
 
 config TI_EDMA
 	bool "TI EDMA support"
-	depends on ARCH_DAVINCI || ARCH_OMAP
+	depends on ARCH_DAVINCI || ARCH_OMAP || ARCH_KEYSTONE
 	select DMA_ENGINE
 	select DMA_VIRTUAL_CHANNELS
 	select TI_PRIV_EDMA
-- 
cgit 


From 700e26292016d723d03a21139de9d5d955d99716 Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Mon, 30 Sep 2013 11:08:20 -0400
Subject: ARM: keystone: Select TI_EDMA to be able to enable SPI driver

Select the TI EDMA to be able to enable SPI driver on Keystone
SOCs. Keystone SOCs share the EDMA IP with other TI SOCs.

Note that EDMA support hasn't been added and tested yet for
Keystone SOC data(device tree), but building it, is harmless since
driver like SPI already takes care of supporting non-dma mode
in the absence of such data.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
 arch/arm/mach-keystone/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-keystone/Kconfig b/arch/arm/mach-keystone/Kconfig
index d7c425d701df..f20c53e75ed9 100644
--- a/arch/arm/mach-keystone/Kconfig
+++ b/arch/arm/mach-keystone/Kconfig
@@ -10,6 +10,7 @@ config ARCH_KEYSTONE
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARM_ERRATA_798181 if SMP
 	select COMMON_CLK_KEYSTONE
+	select TI_EDMA
 	help
 	  Support for boards based on the Texas Instruments Keystone family of
 	  SoCs.
-- 
cgit 


From 4385a83d19be799c21af43fbb1ac90364d7a2384 Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Thu, 26 Sep 2013 18:59:57 -0400
Subject: ARM: keystone: Enable I2C and SPI bus support

Keystone I2C dnd SPI driver updates are already merged so lets
enable them in config.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
 arch/arm/configs/keystone_defconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/configs/keystone_defconfig b/arch/arm/configs/keystone_defconfig
index 1f36b823905f..9943e5da74f1 100644
--- a/arch/arm/configs/keystone_defconfig
+++ b/arch/arm/configs/keystone_defconfig
@@ -123,7 +123,9 @@ CONFIG_SERIAL_OF_PLATFORM=y
 CONFIG_I2C=y
 # CONFIG_I2C_COMPAT is not set
 CONFIG_I2C_CHARDEV=y
+CONFIG_I2C_DAVINCI=y
 CONFIG_SPI=y
+CONFIG_SPI_DAVINCI=y
 CONFIG_SPI_SPIDEV=y
 # CONFIG_HWMON is not set
 CONFIG_WATCHDOG=y
-- 
cgit 


From ca5a45c06cd4764fb8510740f7fc550d9a0208d4 Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Wed, 31 Jul 2013 12:44:41 -0400
Subject: ARM: mm: use phys_addr_t appropriately in p2v and v2p conversions

Fix remainder types used when converting back and forth between
physical and virtual addresses.

Cc: Russell King <linux@arm.linux.org.uk>

Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
 arch/arm/include/asm/memory.h | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index e750a938fd3c..c133bd915f48 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -185,22 +185,32 @@ extern unsigned long __pv_phys_offset;
 	: "=r" (to)					\
 	: "r" (from), "I" (type))
 
-static inline unsigned long __virt_to_phys(unsigned long x)
+static inline phys_addr_t __virt_to_phys(unsigned long x)
 {
 	unsigned long t;
 	__pv_stub(x, t, "add", __PV_BITS_31_24);
 	return t;
 }
 
-static inline unsigned long __phys_to_virt(unsigned long x)
+static inline unsigned long __phys_to_virt(phys_addr_t x)
 {
 	unsigned long t;
 	__pv_stub(x, t, "sub", __PV_BITS_31_24);
 	return t;
 }
+
 #else
-#define __virt_to_phys(x)	((x) - PAGE_OFFSET + PHYS_OFFSET)
-#define __phys_to_virt(x)	((x) - PHYS_OFFSET + PAGE_OFFSET)
+
+static inline phys_addr_t __virt_to_phys(unsigned long x)
+{
+	return (phys_addr_t)x - PAGE_OFFSET + PHYS_OFFSET;
+}
+
+static inline unsigned long __phys_to_virt(phys_addr_t x)
+{
+	return x - PHYS_OFFSET + PAGE_OFFSET;
+}
+
 #endif
 #endif
 #endif /* __ASSEMBLY__ */
@@ -238,14 +248,14 @@ static inline phys_addr_t virt_to_phys(const volatile void *x)
 
 static inline void *phys_to_virt(phys_addr_t x)
 {
-	return (void *)(__phys_to_virt((unsigned long)(x)));
+	return (void *)__phys_to_virt(x);
 }
 
 /*
  * Drivers should NOT use these either.
  */
 #define __pa(x)			__virt_to_phys((unsigned long)(x))
-#define __va(x)			((void *)__phys_to_virt((unsigned long)(x)))
+#define __va(x)			((void *)__phys_to_virt((phys_addr_t)(x)))
 #define pfn_to_kaddr(pfn)	__va((pfn) << PAGE_SHIFT)
 
 /*
-- 
cgit 


From 644f17ad7fc12768cd619532383343e514eab2ac Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Thu, 10 Oct 2013 13:28:46 +0300
Subject: ACPI / PM: allow child devices to ignore parent power state

Some serial buses like I2C and SPI don't require that the parent device is
in D0 before any of its children transitions to D0, but instead the parent
device can control its own power independently from the children.

This does not follow the ACPI specification as it requires the parent to be
powered on before its children. However, Windows seems to ignore this
requirement so I think we can do the same in Linux.

Implement this by adding a new power flag 'ignore_parent' to struct
acpi_device.  If this flag is set the ACPI core ignores checking of the
parent device power state when the device is powered on/off.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/device_pm.c | 8 +++++---
 include/acpi/acpi_bus.h  | 3 ++-
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 59d3202f6b36..ca723a4c120a 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -118,9 +118,10 @@ int acpi_device_get_power(struct acpi_device *device, int *state)
 	/*
 	 * If we were unsure about the device parent's power state up to this
 	 * point, the fact that the device is in D0 implies that the parent has
-	 * to be in D0 too.
+	 * to be in D0 too, except if ignore_parent is set.
 	 */
-	if (device->parent && device->parent->power.state == ACPI_STATE_UNKNOWN
+	if (!device->power.flags.ignore_parent && device->parent
+	    && device->parent->power.state == ACPI_STATE_UNKNOWN
 	    && result == ACPI_STATE_D0)
 		device->parent->power.state = ACPI_STATE_D0;
 
@@ -177,7 +178,8 @@ int acpi_device_set_power(struct acpi_device *device, int state)
 			 acpi_power_state_string(state));
 		return -ENODEV;
 	}
-	if (device->parent && (state < device->parent->power.state)) {
+	if (!device->power.flags.ignore_parent &&
+	    device->parent && (state < device->parent->power.state)) {
 		dev_warn(&device->dev,
 			 "Cannot transition to power state %s for parent in %s\n",
 			 acpi_power_state_string(state),
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 02e113bb8b7d..e830ab029340 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -222,7 +222,8 @@ struct acpi_device_power_flags {
 	u32 power_resources:1;	/* Power resources */
 	u32 inrush_current:1;	/* Serialize Dx->D0 */
 	u32 power_removed:1;	/* Optimize Dx->D0 */
-	u32 reserved:28;
+	u32 ignore_parent:1;	/* Power is independent of parent power state */
+	u32 reserved:27;
 };
 
 struct acpi_device_power_state {
-- 
cgit 


From a76e9bd89ae70fdfff5fd1ca47756a35d10c5f3f Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 10 Oct 2013 13:28:47 +0300
Subject: i2c: attach/detach I2C client device to the ACPI power domain

If the I2C client device is enumerated from ACPI namespace it might have
ACPI methods that needs to be called in order to transition the device to
different power states (such as _PSx).

Implement this for I2C client devices by checking if the device has an ACPI
handle and if that's the case, attach it to the ACPI power domain. In
addition we make sure that the device is fully powered when its ->probe()
function gets called.

For non-ACPI devices this patch is a no-op.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/i2c/i2c-core.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 29d3f045a2bf..03a8ae64d762 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -254,10 +254,12 @@ static int i2c_device_probe(struct device *dev)
 					client->flags & I2C_CLIENT_WAKE);
 	dev_dbg(dev, "probe\n");
 
+	acpi_dev_pm_attach(&client->dev, true);
 	status = driver->probe(client, i2c_match_id(driver->id_table, client));
 	if (status) {
 		client->driver = NULL;
 		i2c_set_clientdata(client, NULL);
+		acpi_dev_pm_detach(&client->dev, true);
 	}
 	return status;
 }
@@ -283,6 +285,7 @@ static int i2c_device_remove(struct device *dev)
 		client->driver = NULL;
 		i2c_set_clientdata(client, NULL);
 	}
+	acpi_dev_pm_detach(&client->dev, true);
 	return status;
 }
 
@@ -1111,8 +1114,10 @@ static acpi_status acpi_i2c_add_device(acpi_handle handle, u32 level,
 	if (ret < 0 || !info.addr)
 		return AE_OK;
 
+	adev->power.flags.ignore_parent = true;
 	strlcpy(info.type, dev_name(&adev->dev), sizeof(info.type));
 	if (!i2c_new_device(adapter, &info)) {
+		adev->power.flags.ignore_parent = false;
 		dev_err(&adapter->dev,
 			"failed to add I2C device %s from ACPI\n",
 			dev_name(&adev->dev));
-- 
cgit 


From 33cf00e5708290f7e57d949219ef443a2aef34e0 Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Thu, 10 Oct 2013 13:28:48 +0300
Subject: spi: attach/detach SPI device to the ACPI power domain

If the SPI device is enumerated from ACPI namespace (it has an ACPI handle)
it might have ACPI methods that needs to be called in order to transition
the device to different power states (such as _PSx).

We follow what has been done for platform and I2C buses here and attach the
SPI device to the ACPI power domain if the device has an ACPI handle. This
makes sure that the device is powered on when its ->probe() is called.

For non-ACPI devices this patch is a no-op.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/spi/spi.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 9e039c60c068..740f9ddda227 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -240,15 +240,27 @@ EXPORT_SYMBOL_GPL(spi_bus_type);
 static int spi_drv_probe(struct device *dev)
 {
 	const struct spi_driver		*sdrv = to_spi_driver(dev->driver);
+	struct spi_device		*spi = to_spi_device(dev);
+	int ret;
+
+	acpi_dev_pm_attach(&spi->dev, true);
+	ret = sdrv->probe(spi);
+	if (ret)
+		acpi_dev_pm_detach(&spi->dev, true);
 
-	return sdrv->probe(to_spi_device(dev));
+	return ret;
 }
 
 static int spi_drv_remove(struct device *dev)
 {
 	const struct spi_driver		*sdrv = to_spi_driver(dev->driver);
+	struct spi_device		*spi = to_spi_device(dev);
+	int ret;
+
+	ret = sdrv->remove(spi);
+	acpi_dev_pm_detach(&spi->dev, true);
 
-	return sdrv->remove(to_spi_device(dev));
+	return ret;
 }
 
 static void spi_drv_shutdown(struct device *dev)
@@ -1025,8 +1037,10 @@ static acpi_status acpi_spi_add_device(acpi_handle handle, u32 level,
 		return AE_OK;
 	}
 
+	adev->power.flags.ignore_parent = true;
 	strlcpy(spi->modalias, dev_name(&adev->dev), sizeof(spi->modalias));
 	if (spi_add_device(spi)) {
+		adev->power.flags.ignore_parent = false;
 		dev_err(&master->dev, "failed to add SPI device %s from ACPI\n",
 			dev_name(&adev->dev));
 		spi_dev_put(spi);
-- 
cgit 


From 4dc9a81715973cb137a14399420bb35b0ed7d6ef Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Wed, 31 Jul 2013 12:44:42 -0400
Subject: ARM: mm: Introduce virt_to_idmap() with an arch hook

On some PAE systems (e.g. TI Keystone), memory is above the
32-bit addressable limit, and the interconnect provides an
aliased view of parts of physical memory in the 32-bit addressable
space.  This alias is strictly for boot time usage, and is not
otherwise usable because of coherency limitations. On such systems,
the idmap mechanism needs to take this aliased mapping into account.

This patch introduces virt_to_idmap() and a arch function pointer which
can be populated by platform which needs it. Also populate necessary
idmap spots with now available virt_to_idmap(). Avoided #ifdef approach
to be compatible with multi-platform builds.

Most architecture won't touch it and in that case virt_to_idmap()
fall-back to existing virt_to_phys() macro.

Cc: Russell King <linux@arm.linux.org.uk>

Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
 arch/arm/include/asm/memory.h | 16 ++++++++++++++++
 arch/arm/kernel/smp.c         |  2 +-
 arch/arm/mm/idmap.c           |  5 +++--
 3 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index c133bd915f48..d9b96c65e594 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -173,6 +173,7 @@
  */
 #define __PV_BITS_31_24	0x81000000
 
+extern phys_addr_t (*arch_virt_to_idmap) (unsigned long x);
 extern unsigned long __pv_phys_offset;
 #define PHYS_OFFSET __pv_phys_offset
 
@@ -258,6 +259,21 @@ static inline void *phys_to_virt(phys_addr_t x)
 #define __va(x)			((void *)__phys_to_virt((phys_addr_t)(x)))
 #define pfn_to_kaddr(pfn)	__va((pfn) << PAGE_SHIFT)
 
+/*
+ * These are for systems that have a hardware interconnect supported alias of
+ * physical memory for idmap purposes.  Most cases should leave these
+ * untouched.
+ */
+static inline phys_addr_t __virt_to_idmap(unsigned long x)
+{
+	if (arch_virt_to_idmap)
+		return arch_virt_to_idmap(x);
+	else
+		return __virt_to_phys(x);
+}
+
+#define virt_to_idmap(x)	__virt_to_idmap((unsigned long)(x))
+
 /*
  * Virtual <-> DMA view memory address translations
  * Again, these are *only* valid on the kernel direct mapped RAM
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 72024ea8a3a6..a0eb830c3daf 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -80,7 +80,7 @@ void __init smp_set_ops(struct smp_operations *ops)
 
 static unsigned long get_arch_pgd(pgd_t *pgd)
 {
-	phys_addr_t pgdir = virt_to_phys(pgd);
+	phys_addr_t pgdir = virt_to_idmap(pgd);
 	BUG_ON(pgdir & ARCH_PGD_MASK);
 	return pgdir >> ARCH_PGD_SHIFT;
 }
diff --git a/arch/arm/mm/idmap.c b/arch/arm/mm/idmap.c
index 83cb3ac27095..c0a1e48f6733 100644
--- a/arch/arm/mm/idmap.c
+++ b/arch/arm/mm/idmap.c
@@ -10,6 +10,7 @@
 #include <asm/system_info.h>
 
 pgd_t *idmap_pgd;
+phys_addr_t (*arch_virt_to_idmap) (unsigned long x);
 
 #ifdef CONFIG_ARM_LPAE
 static void idmap_add_pmd(pud_t *pud, unsigned long addr, unsigned long end,
@@ -67,8 +68,8 @@ static void identity_mapping_add(pgd_t *pgd, const char *text_start,
 	unsigned long addr, end;
 	unsigned long next;
 
-	addr = virt_to_phys(text_start);
-	end = virt_to_phys(text_end);
+	addr = virt_to_idmap(text_start);
+	end = virt_to_idmap(text_end);
 
 	prot |= PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_SECT_AF;
 
-- 
cgit 


From c1a5f4f6733e39c3b780ff14ad6a68252475e7a9 Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Wed, 31 Jul 2013 12:44:43 -0400
Subject: ARM: mm: Move the idmap print to appropriate place in the code

Commit 9e9a367c29cebd2 {ARM: Section based HYP idmap} moved
the address conversion inside identity_mapping_add() without
respective print which carries useful idmap information.

Move the print as well inside identity_mapping_add() to
fix the same.

Cc: Will Deacon <will.deacon@arm.com>
Cc: Nicolas Pitre <nico@linaro.org>
Cc: Russell King <linux@arm.linux.org.uk>

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
 arch/arm/mm/idmap.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm/mm/idmap.c b/arch/arm/mm/idmap.c
index c0a1e48f6733..8e0e52eb76b5 100644
--- a/arch/arm/mm/idmap.c
+++ b/arch/arm/mm/idmap.c
@@ -70,6 +70,7 @@ static void identity_mapping_add(pgd_t *pgd, const char *text_start,
 
 	addr = virt_to_idmap(text_start);
 	end = virt_to_idmap(text_end);
+	pr_info("Setting up static identity map for 0x%lx - 0x%lx\n", addr, end);
 
 	prot |= PMD_TYPE_SECT | PMD_SECT_AP_WRITE | PMD_SECT_AF;
 
@@ -91,8 +92,6 @@ static int __init init_static_idmap(void)
 	if (!idmap_pgd)
 		return -ENOMEM;
 
-	pr_info("Setting up static identity map for 0x%p - 0x%p\n",
-		__idmap_text_start, __idmap_text_end);
 	identity_mapping_add(idmap_pgd, __idmap_text_start,
 			     __idmap_text_end, 0);
 
-- 
cgit 


From f52bb722547f43caeaecbcc62db9f3c3b80ead9b Mon Sep 17 00:00:00 2001
From: Sricharan R <r.sricharan@ti.com>
Date: Mon, 29 Jul 2013 20:26:22 +0530
Subject: ARM: mm: Correct virt_to_phys patching for 64 bit physical addresses

The current phys_to_virt patching mechanism works only for 32 bit
physical addresses and this patch extends the idea for 64bit physical
addresses.

The 64bit v2p patching mechanism patches the higher 8 bits of physical
address with a constant using 'mov' instruction and lower 32bits are patched
using 'add'. While this is correct, in those platforms where the lowmem addressable
physical memory spawns across 4GB boundary, a carry bit can be produced as a
result of addition of lower 32bits. This has to be taken in to account and added
in to the upper. The patched __pv_offset and va are added in lower 32bits, where
__pv_offset can be in two's complement form when PA_START < VA_START and that can
result in a false carry bit.

e.g
    1) PA = 0x80000000; VA = 0xC0000000
       __pv_offset = PA - VA = 0xC0000000 (2's complement)

    2) PA = 0x2 80000000; VA = 0xC000000
       __pv_offset = PA - VA = 0x1 C0000000

So adding __pv_offset + VA should never result in a true overflow for (1).
So in order to differentiate between a true carry, a __pv_offset is extended
to 64bit and the upper 32bits will have 0xffffffff if __pv_offset is
2's complement. So 'mvn #0' is inserted instead of 'mov' while patching
for the same reason. Since mov, add, sub instruction are to patched
with different constants inside the same stub, the rotation field
of the opcode is using to differentiate between them.

So the above examples for v2p translation becomes for VA=0xC0000000,
    1) PA[63:32] = 0xffffffff
       PA[31:0] = VA + 0xC0000000 --> results in a carry
       PA[63:32] = PA[63:32] + carry

       PA[63:0] = 0x0 80000000

    2) PA[63:32] = 0x1
       PA[31:0] = VA + 0xC0000000 --> results in a carry
       PA[63:32] = PA[63:32] + carry

       PA[63:0] = 0x2 80000000

The above ideas were suggested by Nicolas Pitre <nico@linaro.org> as
part of the review of first and second versions of the subject patch.

There is no corresponding change on the phys_to_virt() side, because
computations on the upper 32-bits would be discarded anyway.

Cc: Russell King <linux@arm.linux.org.uk>

Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Sricharan R <r.sricharan@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
 arch/arm/include/asm/memory.h | 37 ++++++++++++++++++++++---
 arch/arm/kernel/armksyms.c    |  1 +
 arch/arm/kernel/head.S        | 63 ++++++++++++++++++++++++++++++++-----------
 3 files changed, 82 insertions(+), 19 deletions(-)

diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index d9b96c65e594..6748d6295a1a 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -172,9 +172,14 @@
  * so that all we need to do is modify the 8-bit constant field.
  */
 #define __PV_BITS_31_24	0x81000000
+#define __PV_BITS_7_0	0x81
 
 extern phys_addr_t (*arch_virt_to_idmap) (unsigned long x);
-extern unsigned long __pv_phys_offset;
+extern u64 __pv_phys_offset;
+extern u64 __pv_offset;
+extern void fixup_pv_table(const void *, unsigned long);
+extern const void *__pv_table_begin, *__pv_table_end;
+
 #define PHYS_OFFSET __pv_phys_offset
 
 #define __pv_stub(from,to,instr,type)			\
@@ -186,10 +191,36 @@ extern unsigned long __pv_phys_offset;
 	: "=r" (to)					\
 	: "r" (from), "I" (type))
 
+#define __pv_stub_mov_hi(t)				\
+	__asm__ volatile("@ __pv_stub_mov\n"		\
+	"1:	mov	%R0, %1\n"			\
+	"	.pushsection .pv_table,\"a\"\n"		\
+	"	.long	1b\n"				\
+	"	.popsection\n"				\
+	: "=r" (t)					\
+	: "I" (__PV_BITS_7_0))
+
+#define __pv_add_carry_stub(x, y)			\
+	__asm__ volatile("@ __pv_add_carry_stub\n"	\
+	"1:	adds	%Q0, %1, %2\n"			\
+	"	adc	%R0, %R0, #0\n"			\
+	"	.pushsection .pv_table,\"a\"\n"		\
+	"	.long	1b\n"				\
+	"	.popsection\n"				\
+	: "+r" (y)					\
+	: "r" (x), "I" (__PV_BITS_31_24)		\
+	: "cc")
+
 static inline phys_addr_t __virt_to_phys(unsigned long x)
 {
-	unsigned long t;
-	__pv_stub(x, t, "add", __PV_BITS_31_24);
+	phys_addr_t t;
+
+	if (sizeof(phys_addr_t) == 4) {
+		__pv_stub(x, t, "add", __PV_BITS_31_24);
+	} else {
+		__pv_stub_mov_hi(t);
+		__pv_add_carry_stub(x, t);
+	}
 	return t;
 }
 
diff --git a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c
index 60d3b738d420..1f031ddd0667 100644
--- a/arch/arm/kernel/armksyms.c
+++ b/arch/arm/kernel/armksyms.c
@@ -155,4 +155,5 @@ EXPORT_SYMBOL(__gnu_mcount_nc);
 
 #ifdef CONFIG_ARM_PATCH_PHYS_VIRT
 EXPORT_SYMBOL(__pv_phys_offset);
+EXPORT_SYMBOL(__pv_offset);
 #endif
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 2c7cc1e03473..54547947a4e9 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -536,6 +536,14 @@ ENTRY(fixup_smp)
 	ldmfd	sp!, {r4 - r6, pc}
 ENDPROC(fixup_smp)
 
+#ifdef __ARMEB_
+#define LOW_OFFSET	0x4
+#define HIGH_OFFSET	0x0
+#else
+#define LOW_OFFSET	0x0
+#define HIGH_OFFSET	0x4
+#endif
+
 #ifdef CONFIG_ARM_PATCH_PHYS_VIRT
 
 /* __fixup_pv_table - patch the stub instructions with the delta between
@@ -546,17 +554,20 @@ ENDPROC(fixup_smp)
 	__HEAD
 __fixup_pv_table:
 	adr	r0, 1f
-	ldmia	r0, {r3-r5, r7}
-	sub	r3, r0, r3	@ PHYS_OFFSET - PAGE_OFFSET
+	ldmia	r0, {r3-r7}
+	mvn	ip, #0
+	subs	r3, r0, r3	@ PHYS_OFFSET - PAGE_OFFSET
 	add	r4, r4, r3	@ adjust table start address
 	add	r5, r5, r3	@ adjust table end address
-	add	r7, r7, r3	@ adjust __pv_phys_offset address
-	str	r8, [r7]	@ save computed PHYS_OFFSET to __pv_phys_offset
+	add	r6, r6, r3	@ adjust __pv_phys_offset address
+	add	r7, r7, r3	@ adjust __pv_offset address
+	str	r8, [r6, #LOW_OFFSET]	@ save computed PHYS_OFFSET to __pv_phys_offset
+	strcc	ip, [r7, #HIGH_OFFSET]	@ save to __pv_offset high bits
 	mov	r6, r3, lsr #24	@ constant for add/sub instructions
 	teq	r3, r6, lsl #24 @ must be 16MiB aligned
 THUMB(	it	ne		@ cross section branch )
 	bne	__error
-	str	r6, [r7, #4]	@ save to __pv_offset
+	str	r3, [r7, #LOW_OFFSET]	@ save to __pv_offset low bits
 	b	__fixup_a_pv_table
 ENDPROC(__fixup_pv_table)
 
@@ -565,10 +576,19 @@ ENDPROC(__fixup_pv_table)
 	.long	__pv_table_begin
 	.long	__pv_table_end
 2:	.long	__pv_phys_offset
+	.long	__pv_offset
 
 	.text
 __fixup_a_pv_table:
+	adr	r0, 3f
+	ldr	r6, [r0]
+	add	r6, r6, r3
+	ldr	r0, [r6, #HIGH_OFFSET]	@ pv_offset high word
+	ldr	r6, [r6, #LOW_OFFSET]	@ pv_offset low word
+	mov	r6, r6, lsr #24
+	cmn	r0, #1
 #ifdef CONFIG_THUMB2_KERNEL
+	moveq	r0, #0x200000	@ set bit 21, mov to mvn instruction
 	lsls	r6, #24
 	beq	2f
 	clz	r7, r6
@@ -582,18 +602,28 @@ __fixup_a_pv_table:
 	b	2f
 1:	add     r7, r3
 	ldrh	ip, [r7, #2]
-	and	ip, 0x8f00
-	orr	ip, r6	@ mask in offset bits 31-24
+	tst	ip, #0x4000
+	and	ip, #0x8f00
+	orrne	ip, r6	@ mask in offset bits 31-24
+	orreq	ip, r0	@ mask in offset bits 7-0
 	strh	ip, [r7, #2]
+	ldrheq	ip, [r7]
+	biceq	ip, #0x20
+	orreq	ip, ip, r0, lsr #16
+	strheq	ip, [r7]
 2:	cmp	r4, r5
 	ldrcc	r7, [r4], #4	@ use branch for delay slot
 	bcc	1b
 	bx	lr
 #else
+	moveq	r0, #0x400000	@ set bit 22, mov to mvn instruction
 	b	2f
 1:	ldr	ip, [r7, r3]
 	bic	ip, ip, #0x000000ff
-	orr	ip, ip, r6	@ mask in offset bits 31-24
+	tst	ip, #0xf00	@ check the rotation field
+	orrne	ip, ip, r6	@ mask in offset bits 31-24
+	biceq	ip, ip, #0x400000	@ clear bit 22
+	orreq	ip, ip, r0	@ mask in offset bits 7-0
 	str	ip, [r7, r3]
 2:	cmp	r4, r5
 	ldrcc	r7, [r4], #4	@ use branch for delay slot
@@ -602,28 +632,29 @@ __fixup_a_pv_table:
 #endif
 ENDPROC(__fixup_a_pv_table)
 
+3:	.long __pv_offset
+
 ENTRY(fixup_pv_table)
 	stmfd	sp!, {r4 - r7, lr}
-	ldr	r2, 2f			@ get address of __pv_phys_offset
 	mov	r3, #0			@ no offset
 	mov	r4, r0			@ r0 = table start
 	add	r5, r0, r1		@ r1 = table size
-	ldr	r6, [r2, #4]		@ get __pv_offset
 	bl	__fixup_a_pv_table
 	ldmfd	sp!, {r4 - r7, pc}
 ENDPROC(fixup_pv_table)
 
-	.align
-2:	.long	__pv_phys_offset
-
 	.data
 	.globl	__pv_phys_offset
 	.type	__pv_phys_offset, %object
 __pv_phys_offset:
-	.long	0
-	.size	__pv_phys_offset, . - __pv_phys_offset
+	.quad	0
+	.size	__pv_phys_offset, . -__pv_phys_offset
+
+	.globl	__pv_offset
+	.type	__pv_offset, %object
 __pv_offset:
-	.long	0
+	.quad	0
+	.size	__pv_offset, . -__pv_offset
 #endif
 
 #include "head-common.S"
-- 
cgit 


From a77e0c7b2774fd52ce6bf25c2c3ffdccb7b110ff Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Wed, 31 Jul 2013 12:44:46 -0400
Subject: ARM: mm: Recreate kernel mappings in early_paging_init()

This patch adds a step in the init sequence, in order to recreate
the kernel code/data page table mappings prior to full paging
initialization.  This is necessary on LPAE systems that run out of
a physical address space outside the 4G limit.  On these systems,
this implementation provides a machine descriptor hook that allows
the PHYS_OFFSET to be overridden in a machine specific fashion.

Cc: Russell King <linux@arm.linux.org.uk>

Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: R Sricharan <r.sricharan@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
---
 arch/arm/include/asm/mach/arch.h |  1 +
 arch/arm/kernel/setup.c          |  4 ++
 arch/arm/mm/mmu.c                | 82 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 87 insertions(+)

diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h
index 402a2bc6aa68..17a3fa2979e8 100644
--- a/arch/arm/include/asm/mach/arch.h
+++ b/arch/arm/include/asm/mach/arch.h
@@ -49,6 +49,7 @@ struct machine_desc {
 	bool			(*smp_init)(void);
 	void			(*fixup)(struct tag *, char **,
 					 struct meminfo *);
+	void			(*init_meminfo)(void);
 	void			(*reserve)(void);/* reserve mem blocks	*/
 	void			(*map_io)(void);/* IO mapping function	*/
 	void			(*init_early)(void);
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 0e1e2b3afa45..af7b7db4699e 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -73,6 +73,8 @@ __setup("fpe=", fpe_setup);
 #endif
 
 extern void paging_init(const struct machine_desc *desc);
+extern void early_paging_init(const struct machine_desc *,
+			      struct proc_info_list *);
 extern void sanity_check_meminfo(void);
 extern enum reboot_mode reboot_mode;
 extern void setup_dma_zone(const struct machine_desc *desc);
@@ -878,6 +880,8 @@ void __init setup_arch(char **cmdline_p)
 	parse_early_param();
 
 	sort(&meminfo.bank, meminfo.nr_banks, sizeof(meminfo.bank[0]), meminfo_cmp, NULL);
+
+	early_paging_init(mdesc, lookup_processor_type(read_cpuid_id()));
 	sanity_check_meminfo();
 	arm_memblock_init(&meminfo, mdesc);
 
diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index b1d17eeb59b8..78eeeca78f5a 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -28,6 +28,8 @@
 #include <asm/highmem.h>
 #include <asm/system_info.h>
 #include <asm/traps.h>
+#include <asm/procinfo.h>
+#include <asm/memory.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
@@ -1315,6 +1317,86 @@ static void __init map_lowmem(void)
 	}
 }
 
+#ifdef CONFIG_ARM_LPAE
+/*
+ * early_paging_init() recreates boot time page table setup, allowing machines
+ * to switch over to a high (>4G) address space on LPAE systems
+ */
+void __init early_paging_init(const struct machine_desc *mdesc,
+			      struct proc_info_list *procinfo)
+{
+	pmdval_t pmdprot = procinfo->__cpu_mm_mmu_flags;
+	unsigned long map_start, map_end;
+	pgd_t *pgd0, *pgdk;
+	pud_t *pud0, *pudk, *pud_start;
+	pmd_t *pmd0, *pmdk;
+	phys_addr_t phys;
+	int i;
+
+	if (!(mdesc->init_meminfo))
+		return;
+
+	/* remap kernel code and data */
+	map_start = init_mm.start_code;
+	map_end   = init_mm.brk;
+
+	/* get a handle on things... */
+	pgd0 = pgd_offset_k(0);
+	pud_start = pud0 = pud_offset(pgd0, 0);
+	pmd0 = pmd_offset(pud0, 0);
+
+	pgdk = pgd_offset_k(map_start);
+	pudk = pud_offset(pgdk, map_start);
+	pmdk = pmd_offset(pudk, map_start);
+
+	mdesc->init_meminfo();
+
+	/* Run the patch stub to update the constants */
+	fixup_pv_table(&__pv_table_begin,
+		(&__pv_table_end - &__pv_table_begin) << 2);
+
+	/*
+	 * Cache cleaning operations for self-modifying code
+	 * We should clean the entries by MVA but running a
+	 * for loop over every pv_table entry pointer would
+	 * just complicate the code.
+	 */
+	flush_cache_louis();
+	dsb();
+	isb();
+
+	/* remap level 1 table */
+	for (i = 0; i < PTRS_PER_PGD; pud0++, i++) {
+		set_pud(pud0,
+			__pud(__pa(pmd0) | PMD_TYPE_TABLE | L_PGD_SWAPPER));
+		pmd0 += PTRS_PER_PMD;
+	}
+
+	/* remap pmds for kernel mapping */
+	phys = __pa(map_start) & PMD_MASK;
+	do {
+		*pmdk++ = __pmd(phys | pmdprot);
+		phys += PMD_SIZE;
+	} while (phys < map_end);
+
+	flush_cache_all();
+	cpu_switch_mm(pgd0, &init_mm);
+	cpu_set_ttbr(1, __pa(pgd0) + TTBR1_OFFSET);
+	local_flush_bp_all();
+	local_flush_tlb_all();
+}
+
+#else
+
+void __init early_paging_init(const struct machine_desc *mdesc,
+			      struct proc_info_list *procinfo)
+{
+	if (mdesc->init_meminfo)
+		mdesc->init_meminfo();
+}
+
+#endif
+
 /*
  * paging_init() sets up the page tables, initialises the zone memory
  * maps, and sets up the zero page, bad page and bad page tables.
-- 
cgit 


From e34ecee2ae791df674dfb466ce40692ca6218e43 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Thu, 10 Oct 2013 19:31:47 -0700
Subject: aio: Fix a trinity splat

aio kiocb refcounting was broken - it was relying on keeping track of
the number of available ring buffer entries, which it needs to do
anyways; then at shutdown time it'd wait for completions to be delivered
until the # of available ring buffer entries equalled what it was
initialized to.

Problem with  that is that the ring buffer is mapped writable into
userspace, so userspace could futz with the head and tail pointers to
cause the kernel to see extra completions, and cause free_ioctx() to
return while there were still outstanding kiocbs. Which would be bad.

Fix is just to directly refcount the kiocbs - which is more
straightforward, and with the new percpu refcounting code doesn't cost
us any cacheline bouncing which was the whole point of the original
scheme.

Also clean up ioctx_alloc()'s error path and fix a bug where it wasn't
subtracting from aio_nr if ioctx_add_table() failed.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 fs/aio.c | 129 ++++++++++++++++++++++++---------------------------------------
 1 file changed, 48 insertions(+), 81 deletions(-)

diff --git a/fs/aio.c b/fs/aio.c
index 067e3d340c35..ee77dc13d5b2 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -80,6 +80,8 @@ struct kioctx {
 	struct percpu_ref	users;
 	atomic_t		dead;
 
+	struct percpu_ref	reqs;
+
 	unsigned long		user_id;
 
 	struct __percpu kioctx_cpu *cpu;
@@ -107,7 +109,6 @@ struct kioctx {
 	struct page		**ring_pages;
 	long			nr_pages;
 
-	struct rcu_head		rcu_head;
 	struct work_struct	free_work;
 
 	struct {
@@ -412,26 +413,34 @@ static int kiocb_cancel(struct kioctx *ctx, struct kiocb *kiocb)
 	return cancel(kiocb);
 }
 
-static void free_ioctx_rcu(struct rcu_head *head)
+static void free_ioctx(struct work_struct *work)
 {
-	struct kioctx *ctx = container_of(head, struct kioctx, rcu_head);
+	struct kioctx *ctx = container_of(work, struct kioctx, free_work);
+
+	pr_debug("freeing %p\n", ctx);
 
+	aio_free_ring(ctx);
 	free_percpu(ctx->cpu);
 	kmem_cache_free(kioctx_cachep, ctx);
 }
 
+static void free_ioctx_reqs(struct percpu_ref *ref)
+{
+	struct kioctx *ctx = container_of(ref, struct kioctx, reqs);
+
+	INIT_WORK(&ctx->free_work, free_ioctx);
+	schedule_work(&ctx->free_work);
+}
+
 /*
  * When this function runs, the kioctx has been removed from the "hash table"
  * and ctx->users has dropped to 0, so we know no more kiocbs can be submitted -
  * now it's safe to cancel any that need to be.
  */
-static void free_ioctx(struct work_struct *work)
+static void free_ioctx_users(struct percpu_ref *ref)
 {
-	struct kioctx *ctx = container_of(work, struct kioctx, free_work);
-	struct aio_ring *ring;
+	struct kioctx *ctx = container_of(ref, struct kioctx, users);
 	struct kiocb *req;
-	unsigned cpu, avail;
-	DEFINE_WAIT(wait);
 
 	spin_lock_irq(&ctx->ctx_lock);
 
@@ -445,54 +454,8 @@ static void free_ioctx(struct work_struct *work)
 
 	spin_unlock_irq(&ctx->ctx_lock);
 
-	for_each_possible_cpu(cpu) {
-		struct kioctx_cpu *kcpu = per_cpu_ptr(ctx->cpu, cpu);
-
-		atomic_add(kcpu->reqs_available, &ctx->reqs_available);
-		kcpu->reqs_available = 0;
-	}
-
-	while (1) {
-		prepare_to_wait(&ctx->wait, &wait, TASK_UNINTERRUPTIBLE);
-
-		ring = kmap_atomic(ctx->ring_pages[0]);
-		avail = (ring->head <= ring->tail)
-			 ? ring->tail - ring->head
-			 : ctx->nr_events - ring->head + ring->tail;
-
-		atomic_add(avail, &ctx->reqs_available);
-		ring->head = ring->tail;
-		kunmap_atomic(ring);
-
-		if (atomic_read(&ctx->reqs_available) >= ctx->nr_events - 1)
-			break;
-
-		schedule();
-	}
-	finish_wait(&ctx->wait, &wait);
-
-	WARN_ON(atomic_read(&ctx->reqs_available) > ctx->nr_events - 1);
-
-	aio_free_ring(ctx);
-
-	pr_debug("freeing %p\n", ctx);
-
-	/*
-	 * Here the call_rcu() is between the wait_event() for reqs_active to
-	 * hit 0, and freeing the ioctx.
-	 *
-	 * aio_complete() decrements reqs_active, but it has to touch the ioctx
-	 * after to issue a wakeup so we use rcu.
-	 */
-	call_rcu(&ctx->rcu_head, free_ioctx_rcu);
-}
-
-static void free_ioctx_ref(struct percpu_ref *ref)
-{
-	struct kioctx *ctx = container_of(ref, struct kioctx, users);
-
-	INIT_WORK(&ctx->free_work, free_ioctx);
-	schedule_work(&ctx->free_work);
+	percpu_ref_kill(&ctx->reqs);
+	percpu_ref_put(&ctx->reqs);
 }
 
 static int ioctx_add_table(struct kioctx *ctx, struct mm_struct *mm)
@@ -551,6 +514,16 @@ static int ioctx_add_table(struct kioctx *ctx, struct mm_struct *mm)
 	}
 }
 
+static void aio_nr_sub(unsigned nr)
+{
+	spin_lock(&aio_nr_lock);
+	if (WARN_ON(aio_nr - nr > aio_nr))
+		aio_nr = 0;
+	else
+		aio_nr -= nr;
+	spin_unlock(&aio_nr_lock);
+}
+
 /* ioctx_alloc
  *	Allocates and initializes an ioctx.  Returns an ERR_PTR if it failed.
  */
@@ -588,8 +561,11 @@ static struct kioctx *ioctx_alloc(unsigned nr_events)
 
 	ctx->max_reqs = nr_events;
 
-	if (percpu_ref_init(&ctx->users, free_ioctx_ref))
-		goto out_freectx;
+	if (percpu_ref_init(&ctx->users, free_ioctx_users))
+		goto err;
+
+	if (percpu_ref_init(&ctx->reqs, free_ioctx_reqs))
+		goto err;
 
 	spin_lock_init(&ctx->ctx_lock);
 	spin_lock_init(&ctx->completion_lock);
@@ -600,10 +576,10 @@ static struct kioctx *ioctx_alloc(unsigned nr_events)
 
 	ctx->cpu = alloc_percpu(struct kioctx_cpu);
 	if (!ctx->cpu)
-		goto out_freeref;
+		goto err;
 
 	if (aio_setup_ring(ctx) < 0)
-		goto out_freepcpu;
+		goto err;
 
 	atomic_set(&ctx->reqs_available, ctx->nr_events - 1);
 	ctx->req_batch = (ctx->nr_events - 1) / (num_possible_cpus() * 4);
@@ -615,7 +591,8 @@ static struct kioctx *ioctx_alloc(unsigned nr_events)
 	if (aio_nr + nr_events > (aio_max_nr * 2UL) ||
 	    aio_nr + nr_events < aio_nr) {
 		spin_unlock(&aio_nr_lock);
-		goto out_cleanup;
+		err = -EAGAIN;
+		goto err;
 	}
 	aio_nr += ctx->max_reqs;
 	spin_unlock(&aio_nr_lock);
@@ -624,23 +601,19 @@ static struct kioctx *ioctx_alloc(unsigned nr_events)
 
 	err = ioctx_add_table(ctx, mm);
 	if (err)
-		goto out_cleanup_put;
+		goto err_cleanup;
 
 	pr_debug("allocated ioctx %p[%ld]: mm=%p mask=0x%x\n",
 		 ctx, ctx->user_id, mm, ctx->nr_events);
 	return ctx;
 
-out_cleanup_put:
-	percpu_ref_put(&ctx->users);
-out_cleanup:
-	err = -EAGAIN;
+err_cleanup:
+	aio_nr_sub(ctx->max_reqs);
+err:
 	aio_free_ring(ctx);
-out_freepcpu:
 	free_percpu(ctx->cpu);
-out_freeref:
+	free_percpu(ctx->reqs.pcpu_count);
 	free_percpu(ctx->users.pcpu_count);
-out_freectx:
-	put_aio_ring_file(ctx);
 	kmem_cache_free(kioctx_cachep, ctx);
 	pr_debug("error allocating ioctx %d\n", err);
 	return ERR_PTR(err);
@@ -675,10 +648,7 @@ static void kill_ioctx(struct mm_struct *mm, struct kioctx *ctx)
 		 * -EAGAIN with no ioctxs actually in use (as far as userspace
 		 *  could tell).
 		 */
-		spin_lock(&aio_nr_lock);
-		BUG_ON(aio_nr - ctx->max_reqs > aio_nr);
-		aio_nr -= ctx->max_reqs;
-		spin_unlock(&aio_nr_lock);
+		aio_nr_sub(ctx->max_reqs);
 
 		if (ctx->mmap_size)
 			vm_munmap(ctx->mmap_base, ctx->mmap_size);
@@ -810,6 +780,8 @@ static inline struct kiocb *aio_get_req(struct kioctx *ctx)
 	if (unlikely(!req))
 		goto out_put;
 
+	percpu_ref_get(&ctx->reqs);
+
 	req->ki_ctx = ctx;
 	return req;
 out_put:
@@ -879,12 +851,6 @@ void aio_complete(struct kiocb *iocb, long res, long res2)
 		return;
 	}
 
-	/*
-	 * Take rcu_read_lock() in case the kioctx is being destroyed, as we
-	 * need to issue a wakeup after incrementing reqs_available.
-	 */
-	rcu_read_lock();
-
 	if (iocb->ki_list.next) {
 		unsigned long flags;
 
@@ -959,7 +925,7 @@ void aio_complete(struct kiocb *iocb, long res, long res2)
 	if (waitqueue_active(&ctx->wait))
 		wake_up(&ctx->wait);
 
-	rcu_read_unlock();
+	percpu_ref_put(&ctx->reqs);
 }
 EXPORT_SYMBOL(aio_complete);
 
@@ -1370,6 +1336,7 @@ static int io_submit_one(struct kioctx *ctx, struct iocb __user *user_iocb,
 	return 0;
 out_put_req:
 	put_reqs_available(ctx, 1);
+	percpu_ref_put(&ctx->reqs);
 	kiocb_free(req);
 	return ret;
 }
-- 
cgit 


From 88f182dd779b9d350b4774c12d16633a5b60f50c Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Thu, 10 Oct 2013 10:16:30 +0200
Subject: x86: Apply the asm_volatile_goto() compiler quirk

Apply the asm_volatile_goto() compiler quirk to the new rmwcc.h
file as well, introduced in:

   c2daa3bed53a sched, x86: Provide a per-cpu preempt_count implementation

Reported-and-tested-by: Fengguang Wu <fengguang.wu@intel.com>
Reported-by: Oleg Nesterov <oleg@redhat.com>
Reported-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Suggested-by: Jakub Jelinek <jakub@redhat.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/include/asm/rmwcc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/rmwcc.h b/arch/x86/include/asm/rmwcc.h
index 735f1849795f..1ff990f1de8e 100644
--- a/arch/x86/include/asm/rmwcc.h
+++ b/arch/x86/include/asm/rmwcc.h
@@ -5,7 +5,7 @@
 
 #define __GEN_RMWcc(fullop, var, cc, ...)				\
 do {									\
-	asm volatile goto (fullop "; j" cc " %l[cc_label]"		\
+	asm_volatile_goto (fullop "; j" cc " %l[cc_label]"		\
 			: : "m" (var), ## __VA_ARGS__ 			\
 			: "memory" : cc_label);				\
 	return 0;							\
-- 
cgit 


From 32ee1e188eadd7c997837649a107fd1c50feef7a Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:04:35 +1000
Subject: powerpc: Fix endian issues in VMX copy loops

Fix the permute loops for little endian.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/lib/copyuser_power7.S | 54 +++++++++++++++++++++----------------
 arch/powerpc/lib/memcpy_power7.S   | 55 ++++++++++++++++++++++----------------
 2 files changed, 63 insertions(+), 46 deletions(-)

diff --git a/arch/powerpc/lib/copyuser_power7.S b/arch/powerpc/lib/copyuser_power7.S
index d1f11795a7ad..e8e9c36dc784 100644
--- a/arch/powerpc/lib/copyuser_power7.S
+++ b/arch/powerpc/lib/copyuser_power7.S
@@ -19,6 +19,14 @@
  */
 #include <asm/ppc_asm.h>
 
+#ifdef __BIG_ENDIAN__
+#define LVS(VRT,RA,RB)		lvsl	VRT,RA,RB
+#define VPERM(VRT,VRA,VRB,VRC)	vperm	VRT,VRA,VRB,VRC
+#else
+#define LVS(VRT,RA,RB)		lvsr	VRT,RA,RB
+#define VPERM(VRT,VRA,VRB,VRC)	vperm	VRT,VRB,VRA,VRC
+#endif
+
 	.macro err1
 100:
 	.section __ex_table,"a"
@@ -552,13 +560,13 @@ err3;	stw	r7,4(r3)
 	li	r10,32
 	li	r11,48
 
-	lvsl	vr16,0,r4	/* Setup permute control vector */
+	LVS(vr16,0,r4)		/* Setup permute control vector */
 err3;	lvx	vr0,0,r4
 	addi	r4,r4,16
 
 	bf	cr7*4+3,5f
 err3;	lvx	vr1,r0,r4
-	vperm	vr8,vr0,vr1,vr16
+	VPERM(vr8,vr0,vr1,vr16)
 	addi	r4,r4,16
 err3;	stvx	vr8,r0,r3
 	addi	r3,r3,16
@@ -566,9 +574,9 @@ err3;	stvx	vr8,r0,r3
 
 5:	bf	cr7*4+2,6f
 err3;	lvx	vr1,r0,r4
-	vperm	vr8,vr0,vr1,vr16
+	VPERM(vr8,vr0,vr1,vr16)
 err3;	lvx	vr0,r4,r9
-	vperm	vr9,vr1,vr0,vr16
+	VPERM(vr9,vr1,vr0,vr16)
 	addi	r4,r4,32
 err3;	stvx	vr8,r0,r3
 err3;	stvx	vr9,r3,r9
@@ -576,13 +584,13 @@ err3;	stvx	vr9,r3,r9
 
 6:	bf	cr7*4+1,7f
 err3;	lvx	vr3,r0,r4
-	vperm	vr8,vr0,vr3,vr16
+	VPERM(vr8,vr0,vr3,vr16)
 err3;	lvx	vr2,r4,r9
-	vperm	vr9,vr3,vr2,vr16
+	VPERM(vr9,vr3,vr2,vr16)
 err3;	lvx	vr1,r4,r10
-	vperm	vr10,vr2,vr1,vr16
+	VPERM(vr10,vr2,vr1,vr16)
 err3;	lvx	vr0,r4,r11
-	vperm	vr11,vr1,vr0,vr16
+	VPERM(vr11,vr1,vr0,vr16)
 	addi	r4,r4,64
 err3;	stvx	vr8,r0,r3
 err3;	stvx	vr9,r3,r9
@@ -611,21 +619,21 @@ err3;	stvx	vr11,r3,r11
 	.align	5
 8:
 err4;	lvx	vr7,r0,r4
-	vperm	vr8,vr0,vr7,vr16
+	VPERM(vr8,vr0,vr7,vr16)
 err4;	lvx	vr6,r4,r9
-	vperm	vr9,vr7,vr6,vr16
+	VPERM(vr9,vr7,vr6,vr16)
 err4;	lvx	vr5,r4,r10
-	vperm	vr10,vr6,vr5,vr16
+	VPERM(vr10,vr6,vr5,vr16)
 err4;	lvx	vr4,r4,r11
-	vperm	vr11,vr5,vr4,vr16
+	VPERM(vr11,vr5,vr4,vr16)
 err4;	lvx	vr3,r4,r12
-	vperm	vr12,vr4,vr3,vr16
+	VPERM(vr12,vr4,vr3,vr16)
 err4;	lvx	vr2,r4,r14
-	vperm	vr13,vr3,vr2,vr16
+	VPERM(vr13,vr3,vr2,vr16)
 err4;	lvx	vr1,r4,r15
-	vperm	vr14,vr2,vr1,vr16
+	VPERM(vr14,vr2,vr1,vr16)
 err4;	lvx	vr0,r4,r16
-	vperm	vr15,vr1,vr0,vr16
+	VPERM(vr15,vr1,vr0,vr16)
 	addi	r4,r4,128
 err4;	stvx	vr8,r0,r3
 err4;	stvx	vr9,r3,r9
@@ -649,13 +657,13 @@ err4;	stvx	vr15,r3,r16
 
 	bf	cr7*4+1,9f
 err3;	lvx	vr3,r0,r4
-	vperm	vr8,vr0,vr3,vr16
+	VPERM(vr8,vr0,vr3,vr16)
 err3;	lvx	vr2,r4,r9
-	vperm	vr9,vr3,vr2,vr16
+	VPERM(vr9,vr3,vr2,vr16)
 err3;	lvx	vr1,r4,r10
-	vperm	vr10,vr2,vr1,vr16
+	VPERM(vr10,vr2,vr1,vr16)
 err3;	lvx	vr0,r4,r11
-	vperm	vr11,vr1,vr0,vr16
+	VPERM(vr11,vr1,vr0,vr16)
 	addi	r4,r4,64
 err3;	stvx	vr8,r0,r3
 err3;	stvx	vr9,r3,r9
@@ -665,9 +673,9 @@ err3;	stvx	vr11,r3,r11
 
 9:	bf	cr7*4+2,10f
 err3;	lvx	vr1,r0,r4
-	vperm	vr8,vr0,vr1,vr16
+	VPERM(vr8,vr0,vr1,vr16)
 err3;	lvx	vr0,r4,r9
-	vperm	vr9,vr1,vr0,vr16
+	VPERM(vr9,vr1,vr0,vr16)
 	addi	r4,r4,32
 err3;	stvx	vr8,r0,r3
 err3;	stvx	vr9,r3,r9
@@ -675,7 +683,7 @@ err3;	stvx	vr9,r3,r9
 
 10:	bf	cr7*4+3,11f
 err3;	lvx	vr1,r0,r4
-	vperm	vr8,vr0,vr1,vr16
+	VPERM(vr8,vr0,vr1,vr16)
 	addi	r4,r4,16
 err3;	stvx	vr8,r0,r3
 	addi	r3,r3,16
diff --git a/arch/powerpc/lib/memcpy_power7.S b/arch/powerpc/lib/memcpy_power7.S
index 0663630baf3b..e4177dbea6bd 100644
--- a/arch/powerpc/lib/memcpy_power7.S
+++ b/arch/powerpc/lib/memcpy_power7.S
@@ -20,6 +20,15 @@
 #include <asm/ppc_asm.h>
 
 _GLOBAL(memcpy_power7)
+
+#ifdef __BIG_ENDIAN__
+#define LVS(VRT,RA,RB)		lvsl	VRT,RA,RB
+#define VPERM(VRT,VRA,VRB,VRC)	vperm	VRT,VRA,VRB,VRC
+#else
+#define LVS(VRT,RA,RB)		lvsr	VRT,RA,RB
+#define VPERM(VRT,VRA,VRB,VRC)	vperm	VRT,VRB,VRA,VRC
+#endif
+
 #ifdef CONFIG_ALTIVEC
 	cmpldi	r5,16
 	cmpldi	cr1,r5,4096
@@ -485,13 +494,13 @@ _GLOBAL(memcpy_power7)
 	li	r10,32
 	li	r11,48
 
-	lvsl	vr16,0,r4	/* Setup permute control vector */
+	LVS(vr16,0,r4)		/* Setup permute control vector */
 	lvx	vr0,0,r4
 	addi	r4,r4,16
 
 	bf	cr7*4+3,5f
 	lvx	vr1,r0,r4
-	vperm	vr8,vr0,vr1,vr16
+	VPERM(vr8,vr0,vr1,vr16)
 	addi	r4,r4,16
 	stvx	vr8,r0,r3
 	addi	r3,r3,16
@@ -499,9 +508,9 @@ _GLOBAL(memcpy_power7)
 
 5:	bf	cr7*4+2,6f
 	lvx	vr1,r0,r4
-	vperm	vr8,vr0,vr1,vr16
+	VPERM(vr8,vr0,vr1,vr16)
 	lvx	vr0,r4,r9
-	vperm	vr9,vr1,vr0,vr16
+	VPERM(vr9,vr1,vr0,vr16)
 	addi	r4,r4,32
 	stvx	vr8,r0,r3
 	stvx	vr9,r3,r9
@@ -509,13 +518,13 @@ _GLOBAL(memcpy_power7)
 
 6:	bf	cr7*4+1,7f
 	lvx	vr3,r0,r4
-	vperm	vr8,vr0,vr3,vr16
+	VPERM(vr8,vr0,vr3,vr16)
 	lvx	vr2,r4,r9
-	vperm	vr9,vr3,vr2,vr16
+	VPERM(vr9,vr3,vr2,vr16)
 	lvx	vr1,r4,r10
-	vperm	vr10,vr2,vr1,vr16
+	VPERM(vr10,vr2,vr1,vr16)
 	lvx	vr0,r4,r11
-	vperm	vr11,vr1,vr0,vr16
+	VPERM(vr11,vr1,vr0,vr16)
 	addi	r4,r4,64
 	stvx	vr8,r0,r3
 	stvx	vr9,r3,r9
@@ -544,21 +553,21 @@ _GLOBAL(memcpy_power7)
 	.align	5
 8:
 	lvx	vr7,r0,r4
-	vperm	vr8,vr0,vr7,vr16
+	VPERM(vr8,vr0,vr7,vr16)
 	lvx	vr6,r4,r9
-	vperm	vr9,vr7,vr6,vr16
+	VPERM(vr9,vr7,vr6,vr16)
 	lvx	vr5,r4,r10
-	vperm	vr10,vr6,vr5,vr16
+	VPERM(vr10,vr6,vr5,vr16)
 	lvx	vr4,r4,r11
-	vperm	vr11,vr5,vr4,vr16
+	VPERM(vr11,vr5,vr4,vr16)
 	lvx	vr3,r4,r12
-	vperm	vr12,vr4,vr3,vr16
+	VPERM(vr12,vr4,vr3,vr16)
 	lvx	vr2,r4,r14
-	vperm	vr13,vr3,vr2,vr16
+	VPERM(vr13,vr3,vr2,vr16)
 	lvx	vr1,r4,r15
-	vperm	vr14,vr2,vr1,vr16
+	VPERM(vr14,vr2,vr1,vr16)
 	lvx	vr0,r4,r16
-	vperm	vr15,vr1,vr0,vr16
+	VPERM(vr15,vr1,vr0,vr16)
 	addi	r4,r4,128
 	stvx	vr8,r0,r3
 	stvx	vr9,r3,r9
@@ -582,13 +591,13 @@ _GLOBAL(memcpy_power7)
 
 	bf	cr7*4+1,9f
 	lvx	vr3,r0,r4
-	vperm	vr8,vr0,vr3,vr16
+	VPERM(vr8,vr0,vr3,vr16)
 	lvx	vr2,r4,r9
-	vperm	vr9,vr3,vr2,vr16
+	VPERM(vr9,vr3,vr2,vr16)
 	lvx	vr1,r4,r10
-	vperm	vr10,vr2,vr1,vr16
+	VPERM(vr10,vr2,vr1,vr16)
 	lvx	vr0,r4,r11
-	vperm	vr11,vr1,vr0,vr16
+	VPERM(vr11,vr1,vr0,vr16)
 	addi	r4,r4,64
 	stvx	vr8,r0,r3
 	stvx	vr9,r3,r9
@@ -598,9 +607,9 @@ _GLOBAL(memcpy_power7)
 
 9:	bf	cr7*4+2,10f
 	lvx	vr1,r0,r4
-	vperm	vr8,vr0,vr1,vr16
+	VPERM(vr8,vr0,vr1,vr16)
 	lvx	vr0,r4,r9
-	vperm	vr9,vr1,vr0,vr16
+	VPERM(vr9,vr1,vr0,vr16)
 	addi	r4,r4,32
 	stvx	vr8,r0,r3
 	stvx	vr9,r3,r9
@@ -608,7 +617,7 @@ _GLOBAL(memcpy_power7)
 
 10:	bf	cr7*4+3,11f
 	lvx	vr1,r0,r4
-	vperm	vr8,vr0,vr1,vr16
+	VPERM(vr8,vr0,vr1,vr16)
 	addi	r4,r4,16
 	stvx	vr8,r0,r3
 	addi	r3,r3,16
-- 
cgit 


From 12f04f2be80dd8d9da24534828f3ab3189ca5af2 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:04:36 +1000
Subject: powerpc: Book 3S MMU little endian support

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/mmu-hash64.h |  4 +--
 arch/powerpc/mm/hash_native_64.c      | 46 ++++++++++++++++++++---------------
 arch/powerpc/mm/hash_utils_64.c       | 38 ++++++++++++++---------------
 3 files changed, 46 insertions(+), 42 deletions(-)

diff --git a/arch/powerpc/include/asm/mmu-hash64.h b/arch/powerpc/include/asm/mmu-hash64.h
index c4cf01197273..807014dde821 100644
--- a/arch/powerpc/include/asm/mmu-hash64.h
+++ b/arch/powerpc/include/asm/mmu-hash64.h
@@ -135,8 +135,8 @@ extern char initial_stab[];
 #ifndef __ASSEMBLY__
 
 struct hash_pte {
-	unsigned long v;
-	unsigned long r;
+	__be64 v;
+	__be64 r;
 };
 
 extern struct hash_pte *htab_address;
diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c
index c33d939120c9..3ea26c25590b 100644
--- a/arch/powerpc/mm/hash_native_64.c
+++ b/arch/powerpc/mm/hash_native_64.c
@@ -35,7 +35,11 @@
 #define DBG_LOW(fmt...)
 #endif
 
+#ifdef __BIG_ENDIAN__
 #define HPTE_LOCK_BIT 3
+#else
+#define HPTE_LOCK_BIT (56+3)
+#endif
 
 DEFINE_RAW_SPINLOCK(native_tlbie_lock);
 
@@ -172,7 +176,7 @@ static inline void tlbie(unsigned long vpn, int psize, int apsize,
 
 static inline void native_lock_hpte(struct hash_pte *hptep)
 {
-	unsigned long *word = &hptep->v;
+	unsigned long *word = (unsigned long *)&hptep->v;
 
 	while (1) {
 		if (!test_and_set_bit_lock(HPTE_LOCK_BIT, word))
@@ -184,7 +188,7 @@ static inline void native_lock_hpte(struct hash_pte *hptep)
 
 static inline void native_unlock_hpte(struct hash_pte *hptep)
 {
-	unsigned long *word = &hptep->v;
+	unsigned long *word = (unsigned long *)&hptep->v;
 
 	clear_bit_unlock(HPTE_LOCK_BIT, word);
 }
@@ -204,10 +208,10 @@ static long native_hpte_insert(unsigned long hpte_group, unsigned long vpn,
 	}
 
 	for (i = 0; i < HPTES_PER_GROUP; i++) {
-		if (! (hptep->v & HPTE_V_VALID)) {
+		if (! (be64_to_cpu(hptep->v) & HPTE_V_VALID)) {
 			/* retry with lock held */
 			native_lock_hpte(hptep);
-			if (! (hptep->v & HPTE_V_VALID))
+			if (! (be64_to_cpu(hptep->v) & HPTE_V_VALID))
 				break;
 			native_unlock_hpte(hptep);
 		}
@@ -226,14 +230,14 @@ static long native_hpte_insert(unsigned long hpte_group, unsigned long vpn,
 			i, hpte_v, hpte_r);
 	}
 
-	hptep->r = hpte_r;
+	hptep->r = cpu_to_be64(hpte_r);
 	/* Guarantee the second dword is visible before the valid bit */
 	eieio();
 	/*
 	 * Now set the first dword including the valid bit
 	 * NOTE: this also unlocks the hpte
 	 */
-	hptep->v = hpte_v;
+	hptep->v = cpu_to_be64(hpte_v);
 
 	__asm__ __volatile__ ("ptesync" : : : "memory");
 
@@ -254,12 +258,12 @@ static long native_hpte_remove(unsigned long hpte_group)
 
 	for (i = 0; i < HPTES_PER_GROUP; i++) {
 		hptep = htab_address + hpte_group + slot_offset;
-		hpte_v = hptep->v;
+		hpte_v = be64_to_cpu(hptep->v);
 
 		if ((hpte_v & HPTE_V_VALID) && !(hpte_v & HPTE_V_BOLTED)) {
 			/* retry with lock held */
 			native_lock_hpte(hptep);
-			hpte_v = hptep->v;
+			hpte_v = be64_to_cpu(hptep->v);
 			if ((hpte_v & HPTE_V_VALID)
 			    && !(hpte_v & HPTE_V_BOLTED))
 				break;
@@ -294,7 +298,7 @@ static long native_hpte_updatepp(unsigned long slot, unsigned long newpp,
 
 	native_lock_hpte(hptep);
 
-	hpte_v = hptep->v;
+	hpte_v = be64_to_cpu(hptep->v);
 	/*
 	 * We need to invalidate the TLB always because hpte_remove doesn't do
 	 * a tlb invalidate. If a hash bucket gets full, we "evict" a more/less
@@ -308,8 +312,8 @@ static long native_hpte_updatepp(unsigned long slot, unsigned long newpp,
 	} else {
 		DBG_LOW(" -> hit\n");
 		/* Update the HPTE */
-		hptep->r = (hptep->r & ~(HPTE_R_PP | HPTE_R_N)) |
-			(newpp & (HPTE_R_PP | HPTE_R_N | HPTE_R_C));
+		hptep->r = cpu_to_be64((be64_to_cpu(hptep->r) & ~(HPTE_R_PP | HPTE_R_N)) |
+			(newpp & (HPTE_R_PP | HPTE_R_N | HPTE_R_C)));
 	}
 	native_unlock_hpte(hptep);
 
@@ -334,7 +338,7 @@ static long native_hpte_find(unsigned long vpn, int psize, int ssize)
 	slot = (hash & htab_hash_mask) * HPTES_PER_GROUP;
 	for (i = 0; i < HPTES_PER_GROUP; i++) {
 		hptep = htab_address + slot;
-		hpte_v = hptep->v;
+		hpte_v = be64_to_cpu(hptep->v);
 
 		if (HPTE_V_COMPARE(hpte_v, want_v) && (hpte_v & HPTE_V_VALID))
 			/* HPTE matches */
@@ -369,8 +373,9 @@ static void native_hpte_updateboltedpp(unsigned long newpp, unsigned long ea,
 	hptep = htab_address + slot;
 
 	/* Update the HPTE */
-	hptep->r = (hptep->r & ~(HPTE_R_PP | HPTE_R_N)) |
-		(newpp & (HPTE_R_PP | HPTE_R_N));
+	hptep->r = cpu_to_be64((be64_to_cpu(hptep->r) &
+			~(HPTE_R_PP | HPTE_R_N)) |
+		(newpp & (HPTE_R_PP | HPTE_R_N)));
 	/*
 	 * Ensure it is out of the tlb too. Bolted entries base and
 	 * actual page size will be same.
@@ -392,7 +397,7 @@ static void native_hpte_invalidate(unsigned long slot, unsigned long vpn,
 
 	want_v = hpte_encode_avpn(vpn, bpsize, ssize);
 	native_lock_hpte(hptep);
-	hpte_v = hptep->v;
+	hpte_v = be64_to_cpu(hptep->v);
 
 	/*
 	 * We need to invalidate the TLB always because hpte_remove doesn't do
@@ -458,7 +463,7 @@ static void native_hugepage_invalidate(struct mm_struct *mm,
 		hptep = htab_address + slot;
 		want_v = hpte_encode_avpn(vpn, psize, ssize);
 		native_lock_hpte(hptep);
-		hpte_v = hptep->v;
+		hpte_v = be64_to_cpu(hptep->v);
 
 		/* Even if we miss, we need to invalidate the TLB */
 		if (!HPTE_V_COMPARE(hpte_v, want_v) || !(hpte_v & HPTE_V_VALID))
@@ -519,11 +524,12 @@ static void hpte_decode(struct hash_pte *hpte, unsigned long slot,
 			int *psize, int *apsize, int *ssize, unsigned long *vpn)
 {
 	unsigned long avpn, pteg, vpi;
-	unsigned long hpte_v = hpte->v;
+	unsigned long hpte_v = be64_to_cpu(hpte->v);
+	unsigned long hpte_r = be64_to_cpu(hpte->r);
 	unsigned long vsid, seg_off;
 	int size, a_size, shift;
 	/* Look at the 8 bit LP value */
-	unsigned int lp = (hpte->r >> LP_SHIFT) & ((1 << LP_BITS) - 1);
+	unsigned int lp = (hpte_r >> LP_SHIFT) & ((1 << LP_BITS) - 1);
 
 	if (!(hpte_v & HPTE_V_LARGE)) {
 		size   = MMU_PAGE_4K;
@@ -612,7 +618,7 @@ static void native_hpte_clear(void)
 		 * running,  right?  and for crash dump, we probably
 		 * don't want to wait for a maybe bad cpu.
 		 */
-		hpte_v = hptep->v;
+		hpte_v = be64_to_cpu(hptep->v);
 
 		/*
 		 * Call __tlbie() here rather than tlbie() since we
@@ -664,7 +670,7 @@ static void native_flush_hash_range(unsigned long number, int local)
 			hptep = htab_address + slot;
 			want_v = hpte_encode_avpn(vpn, psize, ssize);
 			native_lock_hpte(hptep);
-			hpte_v = hptep->v;
+			hpte_v = be64_to_cpu(hptep->v);
 			if (!HPTE_V_COMPARE(hpte_v, want_v) ||
 			    !(hpte_v & HPTE_V_VALID))
 				native_unlock_hpte(hptep);
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index bde8b5589755..6176b3cdf579 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -251,19 +251,18 @@ static int __init htab_dt_scan_seg_sizes(unsigned long node,
 					 void *data)
 {
 	char *type = of_get_flat_dt_prop(node, "device_type", NULL);
-	u32 *prop;
+	__be32 *prop;
 	unsigned long size = 0;
 
 	/* We are scanning "cpu" nodes only */
 	if (type == NULL || strcmp(type, "cpu") != 0)
 		return 0;
 
-	prop = (u32 *)of_get_flat_dt_prop(node, "ibm,processor-segment-sizes",
-					  &size);
+	prop = of_get_flat_dt_prop(node, "ibm,processor-segment-sizes", &size);
 	if (prop == NULL)
 		return 0;
 	for (; size >= 4; size -= 4, ++prop) {
-		if (prop[0] == 40) {
+		if (be32_to_cpu(prop[0]) == 40) {
 			DBG("1T segment support detected\n");
 			cur_cpu_spec->mmu_features |= MMU_FTR_1T_SEGMENT;
 			return 1;
@@ -307,23 +306,22 @@ static int __init htab_dt_scan_page_sizes(unsigned long node,
 					  void *data)
 {
 	char *type = of_get_flat_dt_prop(node, "device_type", NULL);
-	u32 *prop;
+	__be32 *prop;
 	unsigned long size = 0;
 
 	/* We are scanning "cpu" nodes only */
 	if (type == NULL || strcmp(type, "cpu") != 0)
 		return 0;
 
-	prop = (u32 *)of_get_flat_dt_prop(node,
-					  "ibm,segment-page-sizes", &size);
+	prop = of_get_flat_dt_prop(node, "ibm,segment-page-sizes", &size);
 	if (prop != NULL) {
 		pr_info("Page sizes from device-tree:\n");
 		size /= 4;
 		cur_cpu_spec->mmu_features &= ~(MMU_FTR_16M_PAGE);
 		while(size > 0) {
-			unsigned int base_shift = prop[0];
-			unsigned int slbenc = prop[1];
-			unsigned int lpnum = prop[2];
+			unsigned int base_shift = be32_to_cpu(prop[0]);
+			unsigned int slbenc = be32_to_cpu(prop[1]);
+			unsigned int lpnum = be32_to_cpu(prop[2]);
 			struct mmu_psize_def *def;
 			int idx, base_idx;
 
@@ -356,8 +354,8 @@ static int __init htab_dt_scan_page_sizes(unsigned long node,
 				def->tlbiel = 0;
 
 			while (size > 0 && lpnum) {
-				unsigned int shift = prop[0];
-				int penc  = prop[1];
+				unsigned int shift = be32_to_cpu(prop[0]);
+				int penc  = be32_to_cpu(prop[1]);
 
 				prop += 2; size -= 2;
 				lpnum--;
@@ -390,8 +388,8 @@ static int __init htab_dt_scan_hugepage_blocks(unsigned long node,
 					const char *uname, int depth,
 					void *data) {
 	char *type = of_get_flat_dt_prop(node, "device_type", NULL);
-	unsigned long *addr_prop;
-	u32 *page_count_prop;
+	__be64 *addr_prop;
+	__be32 *page_count_prop;
 	unsigned int expected_pages;
 	long unsigned int phys_addr;
 	long unsigned int block_size;
@@ -405,12 +403,12 @@ static int __init htab_dt_scan_hugepage_blocks(unsigned long node,
 	page_count_prop = of_get_flat_dt_prop(node, "ibm,expected#pages", NULL);
 	if (page_count_prop == NULL)
 		return 0;
-	expected_pages = (1 << page_count_prop[0]);
+	expected_pages = (1 << be32_to_cpu(page_count_prop[0]));
 	addr_prop = of_get_flat_dt_prop(node, "reg", NULL);
 	if (addr_prop == NULL)
 		return 0;
-	phys_addr = addr_prop[0];
-	block_size = addr_prop[1];
+	phys_addr = be64_to_cpu(addr_prop[0]);
+	block_size = be64_to_cpu(addr_prop[1]);
 	if (block_size != (16 * GB))
 		return 0;
 	printk(KERN_INFO "Huge page(16GB) memory: "
@@ -534,16 +532,16 @@ static int __init htab_dt_scan_pftsize(unsigned long node,
 				       void *data)
 {
 	char *type = of_get_flat_dt_prop(node, "device_type", NULL);
-	u32 *prop;
+	__be32 *prop;
 
 	/* We are scanning "cpu" nodes only */
 	if (type == NULL || strcmp(type, "cpu") != 0)
 		return 0;
 
-	prop = (u32 *)of_get_flat_dt_prop(node, "ibm,pft-size", NULL);
+	prop = of_get_flat_dt_prop(node, "ibm,pft-size", NULL);
 	if (prop != NULL) {
 		/* pft_size[0] is the NUMA CEC cookie */
-		ppc64_pft_size = prop[1];
+		ppc64_pft_size = be32_to_cpu(prop[1]);
 		return 1;
 	}
 	return 0;
-- 
cgit 


From e156bd8ad76939a9bcd66d85cf06f8cde1fb8030 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:04:37 +1000
Subject: powerpc: Fix offset of FPRs in VSX registers in little endian builds

The FPRs overlap the high doublewords of the first 32 VSX registers.
Fix TS_FPROFFSET and TS_VSRLOWOFFSET so we access the correct fields
in little endian mode.

If VSX is disabled the FPRs are only one doubleword in length so
TS_FPROFFSET needs adjusting in little endian.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/processor.h | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h
index ce4de5aed7b5..82c6ee9df9a1 100644
--- a/arch/powerpc/include/asm/processor.h
+++ b/arch/powerpc/include/asm/processor.h
@@ -14,8 +14,18 @@
 
 #ifdef CONFIG_VSX
 #define TS_FPRWIDTH 2
+
+#ifdef __BIG_ENDIAN__
+#define TS_FPROFFSET 0
+#define TS_VSRLOWOFFSET 1
+#else
+#define TS_FPROFFSET 1
+#define TS_VSRLOWOFFSET 0
+#endif
+
 #else
 #define TS_FPRWIDTH 1
+#define TS_FPROFFSET 0
 #endif
 
 #ifdef CONFIG_PPC64
@@ -142,8 +152,6 @@ typedef struct {
 	unsigned long seg;
 } mm_segment_t;
 
-#define TS_FPROFFSET 0
-#define TS_VSRLOWOFFSET 1
 #define TS_FPR(i) fpr[i][TS_FPROFFSET]
 #define TS_TRANS_FPR(i) transact_fpr[i][TS_FPROFFSET]
 
-- 
cgit 


From 87fec0514f613f8ac43c01b0bc0bc7072c5d10ae Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:04:38 +1000
Subject: powerpc: PTRACE_PEEKUSR/PTRACE_POKEUSER of FPR registers in little
 endian builds

FPRs overlap the high 64bits of the first 32 VSX registers. The
ptrace FP read/write code assumes big endian ordering and grabs
the lowest 64 bits.

Fix this by using the TS_FPR macro which does the right thing.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/ptrace.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 9a0d24c390a3..8d5d4e921a5e 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -1554,8 +1554,8 @@ long arch_ptrace(struct task_struct *child, long request,
 
 			flush_fp_to_thread(child);
 			if (fpidx < (PT_FPSCR - PT_FPR0))
-				tmp = ((unsigned long *)child->thread.fpr)
-					[fpidx * TS_FPRWIDTH];
+				memcpy(&tmp, &child->thread.TS_FPR(fpidx),
+				       sizeof(long));
 			else
 				tmp = child->thread.fpscr.val;
 		}
@@ -1587,8 +1587,8 @@ long arch_ptrace(struct task_struct *child, long request,
 
 			flush_fp_to_thread(child);
 			if (fpidx < (PT_FPSCR - PT_FPR0))
-				((unsigned long *)child->thread.fpr)
-					[fpidx * TS_FPRWIDTH] = data;
+				memcpy(&child->thread.TS_FPR(fpidx), &data,
+				       sizeof(long));
 			else
 				child->thread.fpscr.val = data;
 			ret = 0;
-- 
cgit 


From 926f160f460170b0361f600f365369685ad74009 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:04:39 +1000
Subject: powerpc: Little endian builds double word swap VSX state during
 context save/restore

The elements within VSX loads and stores are big endian ordered
regardless of endianness. Our VSX context save/restore code uses
lxvd2x and stxvd2x which is a 2x doubleword operation. This means
the two doublewords will be swapped and we have to perform another
swap to undo it.

We need to do this on save and restore.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/ppc-opcode.h |  3 +++
 arch/powerpc/include/asm/ppc_asm.h    | 21 +++++++++++++++++----
 2 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h
index d7fe9f5b46d4..ad5fcf51b252 100644
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -181,6 +181,7 @@
 #define PPC_INST_TLBIVAX		0x7c000624
 #define PPC_INST_TLBSRX_DOT		0x7c0006a5
 #define PPC_INST_XXLOR			0xf0000510
+#define PPC_INST_XXSWAPD		0xf0000250
 #define PPC_INST_XVCPSGNDP		0xf0000780
 #define PPC_INST_TRECHKPT		0x7c0007dd
 #define PPC_INST_TRECLAIM		0x7c00075d
@@ -344,6 +345,8 @@
 					       VSX_XX1((s), a, b))
 #define XXLOR(t, a, b)		stringify_in_c(.long PPC_INST_XXLOR | \
 					       VSX_XX3((t), a, b))
+#define XXSWAPD(t, a)		stringify_in_c(.long PPC_INST_XXSWAPD | \
+					       VSX_XX3((t), a, a))
 #define XVCPSGNDP(t, a, b)	stringify_in_c(.long (PPC_INST_XVCPSGNDP | \
 					       VSX_XX3((t), (a), (b))))
 
diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h
index 599545738af3..0c51fb4fd2aa 100644
--- a/arch/powerpc/include/asm/ppc_asm.h
+++ b/arch/powerpc/include/asm/ppc_asm.h
@@ -180,9 +180,20 @@ END_FW_FTR_SECTION_IFSET(FW_FEATURE_SPLPAR)
 #define REST_32VRS_TRANSACT(n,b,base)	REST_16VRS_TRANSACT(n,b,base);	\
 					REST_16VRS_TRANSACT(n+16,b,base)
 
+#ifdef __BIG_ENDIAN__
+#define STXVD2X_ROT(n,b,base)		STXVD2X(n,b,base)
+#define LXVD2X_ROT(n,b,base)		LXVD2X(n,b,base)
+#else
+#define STXVD2X_ROT(n,b,base)		XXSWAPD(n,n);		\
+					STXVD2X(n,b,base);	\
+					XXSWAPD(n,n)
+
+#define LXVD2X_ROT(n,b,base)		LXVD2X(n,b,base);	\
+					XXSWAPD(n,n)
+#endif
 
 #define SAVE_VSR_TRANSACT(n,b,base)	li b,THREAD_TRANSACT_VSR0+(16*(n)); \
-					STXVD2X(n,R##base,R##b)
+					STXVD2X_ROT(n,R##base,R##b)
 #define SAVE_2VSRS_TRANSACT(n,b,base)	SAVE_VSR_TRANSACT(n,b,base);	\
 	                                SAVE_VSR_TRANSACT(n+1,b,base)
 #define SAVE_4VSRS_TRANSACT(n,b,base)	SAVE_2VSRS_TRANSACT(n,b,base);	\
@@ -195,7 +206,7 @@ END_FW_FTR_SECTION_IFSET(FW_FEATURE_SPLPAR)
 	                                SAVE_16VSRS_TRANSACT(n+16,b,base)
 
 #define REST_VSR_TRANSACT(n,b,base)	li b,THREAD_TRANSACT_VSR0+(16*(n)); \
-					LXVD2X(n,R##base,R##b)
+					LXVD2X_ROT(n,R##base,R##b)
 #define REST_2VSRS_TRANSACT(n,b,base)	REST_VSR_TRANSACT(n,b,base);    \
 	                                REST_VSR_TRANSACT(n+1,b,base)
 #define REST_4VSRS_TRANSACT(n,b,base)	REST_2VSRS_TRANSACT(n,b,base);	\
@@ -208,13 +219,15 @@ END_FW_FTR_SECTION_IFSET(FW_FEATURE_SPLPAR)
 	                                REST_16VSRS_TRANSACT(n+16,b,base)
 
 /* Save the lower 32 VSRs in the thread VSR region */
-#define SAVE_VSR(n,b,base)	li b,THREAD_VSR0+(16*(n));  STXVD2X(n,R##base,R##b)
+#define SAVE_VSR(n,b,base)	li b,THREAD_VSR0+(16*(n)); \
+				STXVD2X_ROT(n,R##base,R##b)
 #define SAVE_2VSRS(n,b,base)	SAVE_VSR(n,b,base); SAVE_VSR(n+1,b,base)
 #define SAVE_4VSRS(n,b,base)	SAVE_2VSRS(n,b,base); SAVE_2VSRS(n+2,b,base)
 #define SAVE_8VSRS(n,b,base)	SAVE_4VSRS(n,b,base); SAVE_4VSRS(n+4,b,base)
 #define SAVE_16VSRS(n,b,base)	SAVE_8VSRS(n,b,base); SAVE_8VSRS(n+8,b,base)
 #define SAVE_32VSRS(n,b,base)	SAVE_16VSRS(n,b,base); SAVE_16VSRS(n+16,b,base)
-#define REST_VSR(n,b,base)	li b,THREAD_VSR0+(16*(n)); LXVD2X(n,R##base,R##b)
+#define REST_VSR(n,b,base)	li b,THREAD_VSR0+(16*(n)); \
+				LXVD2X_ROT(n,R##base,R##b)
 #define REST_2VSRS(n,b,base)	REST_VSR(n,b,base); REST_VSR(n+1,b,base)
 #define REST_4VSRS(n,b,base)	REST_2VSRS(n,b,base); REST_2VSRS(n+2,b,base)
 #define REST_8VSRS(n,b,base)	REST_4VSRS(n,b,base); REST_4VSRS(n+4,b,base)
-- 
cgit 


From 15cba23e69435c86197d6e5035445469ca2b8484 Mon Sep 17 00:00:00 2001
From: Ian Munsie <imunsie@au1.ibm.com>
Date: Mon, 23 Sep 2013 12:04:40 +1000
Subject: powerpc: Support endian agnostic MMIO

This patch maps the MMIO functions for 32bit PowerPC to their
appropriate instructions depending on CPU endianness.

The macros used to create the corresponding inline functions are also
renamed by this patch. Previously they had BE or LE in their names which
was misleading - they had nothing to do with endianness, but actually
created different instruction forms so their new names reflect the
instruction form they are creating (D-Form and X-Form).

Little endian 64bit PowerPC is not supported, so the lack of mappings
(and corresponding breakage) for that case is intentional to bring the
attention of anyone doing a 64bit little endian port. 64bit big endian
is unaffected.

[ Added 64 bit versions - Anton ]

Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/io.h | 67 +++++++++++++++++++++++++++++++------------
 1 file changed, 49 insertions(+), 18 deletions(-)

diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h
index 5a64757dc0d1..db1f29673c06 100644
--- a/arch/powerpc/include/asm/io.h
+++ b/arch/powerpc/include/asm/io.h
@@ -113,7 +113,7 @@ extern bool isa_io_special;
 
 /* gcc 4.0 and older doesn't have 'Z' constraint */
 #if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ == 0)
-#define DEF_MMIO_IN_LE(name, size, insn)				\
+#define DEF_MMIO_IN_X(name, size, insn)				\
 static inline u##size name(const volatile u##size __iomem *addr)	\
 {									\
 	u##size ret;							\
@@ -122,7 +122,7 @@ static inline u##size name(const volatile u##size __iomem *addr)	\
 	return ret;							\
 }
 
-#define DEF_MMIO_OUT_LE(name, size, insn) 				\
+#define DEF_MMIO_OUT_X(name, size, insn)				\
 static inline void name(volatile u##size __iomem *addr, u##size val)	\
 {									\
 	__asm__ __volatile__("sync;"#insn" %1,0,%2"			\
@@ -130,7 +130,7 @@ static inline void name(volatile u##size __iomem *addr, u##size val)	\
 	IO_SET_SYNC_FLAG();						\
 }
 #else /* newer gcc */
-#define DEF_MMIO_IN_LE(name, size, insn)				\
+#define DEF_MMIO_IN_X(name, size, insn)				\
 static inline u##size name(const volatile u##size __iomem *addr)	\
 {									\
 	u##size ret;							\
@@ -139,7 +139,7 @@ static inline u##size name(const volatile u##size __iomem *addr)	\
 	return ret;							\
 }
 
-#define DEF_MMIO_OUT_LE(name, size, insn) 				\
+#define DEF_MMIO_OUT_X(name, size, insn)				\
 static inline void name(volatile u##size __iomem *addr, u##size val)	\
 {									\
 	__asm__ __volatile__("sync;"#insn" %1,%y0"			\
@@ -148,7 +148,7 @@ static inline void name(volatile u##size __iomem *addr, u##size val)	\
 }
 #endif
 
-#define DEF_MMIO_IN_BE(name, size, insn)				\
+#define DEF_MMIO_IN_D(name, size, insn)				\
 static inline u##size name(const volatile u##size __iomem *addr)	\
 {									\
 	u##size ret;							\
@@ -157,7 +157,7 @@ static inline u##size name(const volatile u##size __iomem *addr)	\
 	return ret;							\
 }
 
-#define DEF_MMIO_OUT_BE(name, size, insn)				\
+#define DEF_MMIO_OUT_D(name, size, insn)				\
 static inline void name(volatile u##size __iomem *addr, u##size val)	\
 {									\
 	__asm__ __volatile__("sync;"#insn"%U0%X0 %1,%0"			\
@@ -165,22 +165,37 @@ static inline void name(volatile u##size __iomem *addr, u##size val)	\
 	IO_SET_SYNC_FLAG();						\
 }
 
+DEF_MMIO_IN_D(in_8,     8, lbz);
+DEF_MMIO_OUT_D(out_8,   8, stb);
 
-DEF_MMIO_IN_BE(in_8,     8, lbz);
-DEF_MMIO_IN_BE(in_be16, 16, lhz);
-DEF_MMIO_IN_BE(in_be32, 32, lwz);
-DEF_MMIO_IN_LE(in_le16, 16, lhbrx);
-DEF_MMIO_IN_LE(in_le32, 32, lwbrx);
+#ifdef __BIG_ENDIAN__
+DEF_MMIO_IN_D(in_be16, 16, lhz);
+DEF_MMIO_IN_D(in_be32, 32, lwz);
+DEF_MMIO_IN_X(in_le16, 16, lhbrx);
+DEF_MMIO_IN_X(in_le32, 32, lwbrx);
 
-DEF_MMIO_OUT_BE(out_8,     8, stb);
-DEF_MMIO_OUT_BE(out_be16, 16, sth);
-DEF_MMIO_OUT_BE(out_be32, 32, stw);
-DEF_MMIO_OUT_LE(out_le16, 16, sthbrx);
-DEF_MMIO_OUT_LE(out_le32, 32, stwbrx);
+DEF_MMIO_OUT_D(out_be16, 16, sth);
+DEF_MMIO_OUT_D(out_be32, 32, stw);
+DEF_MMIO_OUT_X(out_le16, 16, sthbrx);
+DEF_MMIO_OUT_X(out_le32, 32, stwbrx);
+#else
+DEF_MMIO_IN_X(in_be16, 16, lhbrx);
+DEF_MMIO_IN_X(in_be32, 32, lwbrx);
+DEF_MMIO_IN_D(in_le16, 16, lhz);
+DEF_MMIO_IN_D(in_le32, 32, lwz);
+
+DEF_MMIO_OUT_X(out_be16, 16, sthbrx);
+DEF_MMIO_OUT_X(out_be32, 32, stwbrx);
+DEF_MMIO_OUT_D(out_le16, 16, sth);
+DEF_MMIO_OUT_D(out_le32, 32, stw);
+
+#endif /* __BIG_ENDIAN */
 
 #ifdef __powerpc64__
-DEF_MMIO_OUT_BE(out_be64, 64, std);
-DEF_MMIO_IN_BE(in_be64, 64, ld);
+
+#ifdef __BIG_ENDIAN__
+DEF_MMIO_OUT_D(out_be64, 64, std);
+DEF_MMIO_IN_D(in_be64, 64, ld);
 
 /* There is no asm instructions for 64 bits reverse loads and stores */
 static inline u64 in_le64(const volatile u64 __iomem *addr)
@@ -192,6 +207,22 @@ static inline void out_le64(volatile u64 __iomem *addr, u64 val)
 {
 	out_be64(addr, swab64(val));
 }
+#else
+DEF_MMIO_OUT_D(out_le64, 64, std);
+DEF_MMIO_IN_D(in_le64, 64, ld);
+
+/* There is no asm instructions for 64 bits reverse loads and stores */
+static inline u64 in_be64(const volatile u64 __iomem *addr)
+{
+	return swab64(in_le64(addr));
+}
+
+static inline void out_be64(volatile u64 __iomem *addr, u64 val)
+{
+	out_le64(addr, swab64(val));
+}
+
+#endif
 #endif /* __powerpc64__ */
 
 /*
-- 
cgit 


From 4c74c330c2d84aec9f2b4e87827b08814c266b6b Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:04:41 +1000
Subject: powerpc: Add little endian support for word-at-a-time functions

The powerpc word-at-a-time functions are big endian specific.
Bring in the x86 version in order to support little endian builds.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/word-at-a-time.h | 71 +++++++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)

diff --git a/arch/powerpc/include/asm/word-at-a-time.h b/arch/powerpc/include/asm/word-at-a-time.h
index d0b6d4ac6dda..213a5f2b0717 100644
--- a/arch/powerpc/include/asm/word-at-a-time.h
+++ b/arch/powerpc/include/asm/word-at-a-time.h
@@ -8,6 +8,8 @@
 #include <linux/kernel.h>
 #include <asm/asm-compat.h>
 
+#ifdef __BIG_ENDIAN__
+
 struct word_at_a_time {
 	const unsigned long high_bits, low_bits;
 };
@@ -38,4 +40,73 @@ static inline bool has_zero(unsigned long val, unsigned long *data, const struct
 	return (val + c->high_bits) & ~rhs;
 }
 
+#else
+
+/*
+ * This is largely generic for little-endian machines, but the
+ * optimal byte mask counting is probably going to be something
+ * that is architecture-specific. If you have a reliably fast
+ * bit count instruction, that might be better than the multiply
+ * and shift, for example.
+ */
+struct word_at_a_time {
+	const unsigned long one_bits, high_bits;
+};
+
+#define WORD_AT_A_TIME_CONSTANTS { REPEAT_BYTE(0x01), REPEAT_BYTE(0x80) }
+
+#ifdef CONFIG_64BIT
+
+/*
+ * Jan Achrenius on G+: microoptimized version of
+ * the simpler "(mask & ONEBYTES) * ONEBYTES >> 56"
+ * that works for the bytemasks without having to
+ * mask them first.
+ */
+static inline long count_masked_bytes(unsigned long mask)
+{
+	return mask*0x0001020304050608ul >> 56;
+}
+
+#else	/* 32-bit case */
+
+/* Carl Chatfield / Jan Achrenius G+ version for 32-bit */
+static inline long count_masked_bytes(long mask)
+{
+	/* (000000 0000ff 00ffff ffffff) -> ( 1 1 2 3 ) */
+	long a = (0x0ff0001+mask) >> 23;
+	/* Fix the 1 for 00 case */
+	return a & mask;
+}
+
+#endif
+
+/* Return nonzero if it has a zero */
+static inline unsigned long has_zero(unsigned long a, unsigned long *bits, const struct word_at_a_time *c)
+{
+	unsigned long mask = ((a - c->one_bits) & ~a) & c->high_bits;
+	*bits = mask;
+	return mask;
+}
+
+static inline unsigned long prep_zero_mask(unsigned long a, unsigned long bits, const struct word_at_a_time *c)
+{
+	return bits;
+}
+
+static inline unsigned long create_zero_mask(unsigned long bits)
+{
+	bits = (bits - 1) & ~bits;
+	return bits >> 7;
+}
+
+/* The mask we created is directly usable as a bytemask */
+#define zero_bytemask(mask) (mask)
+
+static inline unsigned long find_zero(unsigned long mask)
+{
+	return count_masked_bytes(mask);
+}
+#endif
+
 #endif /* _ASM_WORD_AT_A_TIME_H */
-- 
cgit 


From ef1967ff875d58c290108f9c6872a53a79855c4b Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:04:42 +1000
Subject: powerpc: Set MSR_LE bit on little endian builds

We need to set MSR_LE in kernel and userspace for little endian builds

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/reg.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 10d1ef016bf1..126f6e98f84d 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -115,7 +115,12 @@
 #define MSR_64BIT	MSR_SF
 
 /* Server variant */
-#define MSR_		(MSR_ME | MSR_RI | MSR_IR | MSR_DR | MSR_ISF |MSR_HV)
+#define __MSR		(MSR_ME | MSR_RI | MSR_IR | MSR_DR | MSR_ISF |MSR_HV)
+#ifdef __BIG_ENDIAN__
+#define MSR_		__MSR
+#else
+#define MSR_		(__MSR | MSR_LE)
+#endif
 #define MSR_KERNEL	(MSR_ | MSR_64BIT)
 #define MSR_USER32	(MSR_ | MSR_PR | MSR_EE)
 #define MSR_USER64	(MSR_USER32 | MSR_64BIT)
-- 
cgit 


From e871c6bbf66c1b44af0fb925427e957301e2e1ff Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:04:43 +1000
Subject: powerpc: Reset MSR_LE on signal entry

We always take signals in big endian which is wrong. Signals
should be taken in native endian.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/signal_32.c | 3 ++-
 arch/powerpc/kernel/signal_64.c | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index bebdf1a1a540..b386b0be8d02 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -1045,8 +1045,9 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
 	regs->gpr[5] = (unsigned long) &rt_sf->uc;
 	regs->gpr[6] = (unsigned long) rt_sf;
 	regs->nip = (unsigned long) ka->sa.sa_handler;
-	/* enter the signal handler in big-endian mode */
+	/* enter the signal handler in native-endian mode */
 	regs->msr &= ~MSR_LE;
+	regs->msr |= (MSR_KERNEL & MSR_LE);
 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 	/* Remove TM bits from thread's MSR.  The MSR in the sigcontext
 	 * just indicates to userland that we were doing a transaction, but we
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index f93ec2835a13..8b51b0278106 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -773,8 +773,9 @@ int handle_rt_signal64(int signr, struct k_sigaction *ka, siginfo_t *info,
 
 	/* Set up "regs" so we "return" to the signal handler. */
 	err |= get_user(regs->nip, &funct_desc_ptr->entry);
-	/* enter the signal handler in big-endian mode */
+	/* enter the signal handler in native-endian mode */
 	regs->msr &= ~MSR_LE;
+	regs->msr |= (MSR_KERNEL & MSR_LE);
 	regs->gpr[1] = newsp;
 	err |= get_user(regs->gpr[2], &funct_desc_ptr->toc);
 	regs->gpr[3] = signr;
-- 
cgit 


From c57a5ce0df04be61bafedc0f3043d568103c7ab5 Mon Sep 17 00:00:00 2001
From: Ian Munsie <imunsie@au1.ibm.com>
Date: Mon, 23 Sep 2013 12:04:44 +1000
Subject: powerpc: Include the appropriate endianness header

This patch will have powerpc include the appropriate generic endianness
header depending on what the compiler reports.

Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/uapi/asm/byteorder.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/powerpc/include/uapi/asm/byteorder.h b/arch/powerpc/include/uapi/asm/byteorder.h
index aa6cc4fac965..ca931d074000 100644
--- a/arch/powerpc/include/uapi/asm/byteorder.h
+++ b/arch/powerpc/include/uapi/asm/byteorder.h
@@ -7,6 +7,10 @@
  * as published by the Free Software Foundation; either version
  * 2 of the License, or (at your option) any later version.
  */
+#ifdef __LITTLE_ENDIAN__
+#include <linux/byteorder/little_endian.h>
+#else
 #include <linux/byteorder/big_endian.h>
+#endif
 
 #endif /* _ASM_POWERPC_BYTEORDER_H */
-- 
cgit 


From 5c0484e25ec03243d4c2f2d4416d4a13efc77f6a Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Mon, 23 Sep 2013 12:04:45 +1000
Subject: powerpc: Endian safe trampoline

Create a trampoline that works in either endian and flips to
the expected endian. Use it for primary and secondary thread
entry as well as RTAS and OF call return.

Credit for finding the magic instruction goes to Paul Mackerras

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/ppc_asm.h | 31 ++++++++++++++++++++++++++++++-
 arch/powerpc/kernel/entry_64.S     | 36 ++++++++++++++++++++----------------
 arch/powerpc/kernel/head_64.S      |  3 +++
 3 files changed, 53 insertions(+), 17 deletions(-)

diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h
index 0c51fb4fd2aa..ce05bba0bfc6 100644
--- a/arch/powerpc/include/asm/ppc_asm.h
+++ b/arch/powerpc/include/asm/ppc_asm.h
@@ -845,6 +845,35 @@ END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,946)
 #define N_SLINE	68
 #define N_SO	100
 
-#endif /*  __ASSEMBLY__ */
+/*
+ * Create an endian fixup trampoline
+ *
+ * This starts with a "tdi 0,0,0x48" instruction which is
+ * essentially a "trap never", and thus akin to a nop.
+ *
+ * The opcode for this instruction read with the wrong endian
+ * however results in a b . + 8
+ *
+ * So essentially we use that trick to execute the following
+ * trampoline in "reverse endian" if we are running with the
+ * MSR_LE bit set the "wrong" way for whatever endianness the
+ * kernel is built for.
+ */
 
+#ifdef CONFIG_PPC_BOOK3E
+#define FIXUP_ENDIAN
+#else
+#define FIXUP_ENDIAN						   \
+	tdi   0,0,0x48;	  /* Reverse endian of b . + 8		*/ \
+	b     $+36;	  /* Skip trampoline if endian is good	*/ \
+	.long 0x05009f42; /* bcl 20,31,$+4			*/ \
+	.long 0xa602487d; /* mflr r10				*/ \
+	.long 0x1c004a39; /* addi r10,r10,28			*/ \
+	.long 0xa600607d; /* mfmsr r11				*/ \
+	.long 0x01006b69; /* xori r11,r11,1			*/ \
+	.long 0xa6035a7d; /* mtsrr0 r10				*/ \
+	.long 0xa6037b7d; /* mtsrr1 r11				*/ \
+	.long 0x2400004c  /* rfid				*/
+#endif /* !CONFIG_PPC_BOOK3E */
+#endif /*  __ASSEMBLY__ */
 #endif /* _ASM_POWERPC_PPC_ASM_H */
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index c04cdf70d487..889ea2b19383 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -1017,7 +1017,7 @@ _GLOBAL(enter_rtas)
 	
         li      r9,1
         rldicr  r9,r9,MSR_SF_LG,(63-MSR_SF_LG)
-	ori	r9,r9,MSR_IR|MSR_DR|MSR_FE0|MSR_FE1|MSR_FP|MSR_RI
+	ori	r9,r9,MSR_IR|MSR_DR|MSR_FE0|MSR_FE1|MSR_FP|MSR_RI|MSR_LE
 	andc	r6,r0,r9
 	sync				/* disable interrupts so SRR0/1 */
 	mtmsrd	r0			/* don't get trashed */
@@ -1032,6 +1032,8 @@ _GLOBAL(enter_rtas)
 	b	.	/* prevent speculative execution */
 
 _STATIC(rtas_return_loc)
+	FIXUP_ENDIAN
+
 	/* relocation is off at this point */
 	GET_PACA(r4)
 	clrldi	r4,r4,2			/* convert to realmode address */
@@ -1103,28 +1105,30 @@ _GLOBAL(enter_prom)
 	std	r10,_CCR(r1)
 	std	r11,_MSR(r1)
 
-	/* Get the PROM entrypoint */
-	mtlr	r4
+	/* Put PROM address in SRR0 */
+	mtsrr0	r4
+
+	/* Setup our trampoline return addr in LR */
+	bcl	20,31,$+4
+0:	mflr	r4
+	addi	r4,r4,(1f - 0b)
+       	mtlr	r4
 
-	/* Switch MSR to 32 bits mode
+	/* Prepare a 32-bit mode big endian MSR
 	 */
 #ifdef CONFIG_PPC_BOOK3E
 	rlwinm	r11,r11,0,1,31
-	mtmsr	r11
+	mtsrr1	r11
+	rfi
 #else /* CONFIG_PPC_BOOK3E */
-        mfmsr   r11
-        li      r12,1
-        rldicr  r12,r12,MSR_SF_LG,(63-MSR_SF_LG)
-        andc    r11,r11,r12
-        li      r12,1
-        rldicr  r12,r12,MSR_ISF_LG,(63-MSR_ISF_LG)
-        andc    r11,r11,r12
-        mtmsrd  r11
+	LOAD_REG_IMMEDIATE(r12, MSR_SF | MSR_ISF | MSR_LE)
+	andc	r11,r11,r12
+	mtsrr1	r11
+	rfid
 #endif /* CONFIG_PPC_BOOK3E */
-        isync
 
-	/* Enter PROM here... */
-	blrl
+1:	/* Return from OF */
+	FIXUP_ENDIAN
 
 	/* Just make sure that r1 top 32 bits didn't get
 	 * corrupt by OF
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 3d11d8038dee..2ae41aba4053 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -68,6 +68,7 @@ _stext:
 _GLOBAL(__start)
 	/* NOP this out unconditionally */
 BEGIN_FTR_SECTION
+	FIXUP_ENDIAN
 	b	.__start_initialization_multiplatform
 END_FTR_SECTION(0, 1)
 
@@ -115,6 +116,7 @@ __run_at_load:
  */
 	.globl	__secondary_hold
 __secondary_hold:
+	FIXUP_ENDIAN
 #ifndef CONFIG_PPC_BOOK3E
 	mfmsr	r24
 	ori	r24,r24,MSR_RI
@@ -205,6 +207,7 @@ _GLOBAL(generic_secondary_thread_init)
  * as SCOM before entry).
  */
 _GLOBAL(generic_secondary_smp_init)
+	FIXUP_ENDIAN
 	mr	r24,r3
 	mr	r25,r4
 
-- 
cgit 


From f626190d27a8525fbb6e3a72831e177c092f8a44 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:04:46 +1000
Subject: powerpc: Remove open coded byte swap macro in alignment handler

Use swab64/32/16 instead of open coding it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/align.c | 36 ++++++++++++------------------------
 1 file changed, 12 insertions(+), 24 deletions(-)

diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index a27ccd5dc6b9..af830dfe98b5 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -54,8 +54,6 @@ struct aligninfo {
 /* DSISR bits reported for a DCBZ instruction: */
 #define DCBZ	0x5f	/* 8xx/82xx dcbz faults when cache not enabled */
 
-#define SWAP(a, b)	(t = (a), (a) = (b), (b) = t)
-
 /*
  * The PowerPC stores certain bits of the instruction that caused the
  * alignment exception in the DSISR register.  This array maps those
@@ -458,7 +456,7 @@ static struct aligninfo spe_aligninfo[32] = {
 static int emulate_spe(struct pt_regs *regs, unsigned int reg,
 		       unsigned int instr)
 {
-	int t, ret;
+	int ret;
 	union {
 		u64 ll;
 		u32 w[2];
@@ -581,24 +579,18 @@ static int emulate_spe(struct pt_regs *regs, unsigned int reg,
 	if (flags & SW) {
 		switch (flags & 0xf0) {
 		case E8:
-			SWAP(data.v[0], data.v[7]);
-			SWAP(data.v[1], data.v[6]);
-			SWAP(data.v[2], data.v[5]);
-			SWAP(data.v[3], data.v[4]);
+			data.ll = swab64(data.ll);
 			break;
 		case E4:
-
-			SWAP(data.v[0], data.v[3]);
-			SWAP(data.v[1], data.v[2]);
-			SWAP(data.v[4], data.v[7]);
-			SWAP(data.v[5], data.v[6]);
+			data.w[0] = swab32(data.w[0]);
+			data.w[1] = swab32(data.w[1]);
 			break;
 		/* Its half word endian */
 		default:
-			SWAP(data.v[0], data.v[1]);
-			SWAP(data.v[2], data.v[3]);
-			SWAP(data.v[4], data.v[5]);
-			SWAP(data.v[6], data.v[7]);
+			data.h[0] = swab16(data.h[0]);
+			data.h[1] = swab16(data.h[1]);
+			data.h[2] = swab16(data.h[2]);
+			data.h[3] = swab16(data.h[3]);
 			break;
 		}
 	}
@@ -710,7 +702,7 @@ int fix_alignment(struct pt_regs *regs)
 	unsigned int dsisr;
 	unsigned char __user *addr;
 	unsigned long p, swiz;
-	int ret, t;
+	int ret;
 	union {
 		u64 ll;
 		double dd;
@@ -915,17 +907,13 @@ int fix_alignment(struct pt_regs *regs)
 	if (flags & SW) {
 		switch (nb) {
 		case 8:
-			SWAP(data.v[0], data.v[7]);
-			SWAP(data.v[1], data.v[6]);
-			SWAP(data.v[2], data.v[5]);
-			SWAP(data.v[3], data.v[4]);
+			data.ll = swab64(data.ll);
 			break;
 		case 4:
-			SWAP(data.v[4], data.v[7]);
-			SWAP(data.v[5], data.v[6]);
+			data.x32.low32 = swab32(data.x32.low32);
 			break;
 		case 2:
-			SWAP(data.v[6], data.v[7]);
+			data.x16.low16 = swab16(data.x16.low16);
 			break;
 		}
 	}
-- 
cgit 


From c324496456208e4a6a377d8a36b8fad76d004c7f Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:04:47 +1000
Subject: powerpc: Remove hard coded FP offsets in alignment handler

The alignment handler assumes big endian ordering when selecting
the low word of a 64bit floating point value. Use the existing
union which works in both little and big endian.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/align.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index af830dfe98b5..25d8d8b4eaf9 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -895,7 +895,7 @@ int fix_alignment(struct pt_regs *regs)
 #ifdef CONFIG_PPC_FPU
 			preempt_disable();
 			enable_kernel_fp();
-			cvt_df(&data.dd, (float *)&data.v[4]);
+			cvt_df(&data.dd, (float *)&data.x32.low32);
 			preempt_enable();
 #else
 			return 0;
@@ -935,7 +935,7 @@ int fix_alignment(struct pt_regs *regs)
 #ifdef CONFIG_PPC_FPU
 		preempt_disable();
 		enable_kernel_fp();
-		cvt_fd((float *)&data.v[4], &data.dd);
+		cvt_fd((float *)&data.x32.low32, &data.dd);
 		preempt_enable();
 #else
 		return 0;
-- 
cgit 


From a5841a46022e1ebe97d4c926c32ef4e9acec96a7 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:04:48 +1000
Subject: powerpc: Alignment handler shouldn't access VSX registers with TS_FPR

The TS_FPR macro selects the FPR component of a VSX register (the
high doubleword). emulate_vsx is using this macro to get the
address of the associated VSX register. This happens to work on big
endian, but fails on little endian.

Replace it with an explicit array access.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/align.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index 25d8d8b4eaf9..3049bd00e757 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -650,7 +650,7 @@ static int emulate_vsx(unsigned char __user *addr, unsigned int reg,
 	flush_vsx_to_thread(current);
 
 	if (reg < 32)
-		ptr = (char *) &current->thread.TS_FPR(reg);
+		ptr = (char *) &current->thread.fpr[reg][0];
 	else
 		ptr = (char *) &current->thread.vr[reg - 32];
 
-- 
cgit 


From 835e206a67703f8cfb9f13ffc90d5fe5a374f40c Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:04:49 +1000
Subject: powerpc: Add little endian support to alignment handler

Handle most unaligned load and store faults in little
endian mode. Strings, multiples and VSX are not supported.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/align.c | 93 ++++++++++++++++++++++++++++++---------------
 1 file changed, 63 insertions(+), 30 deletions(-)

diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index 3049bd00e757..cce82b1e0374 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -262,6 +262,7 @@ static int emulate_dcbz(struct pt_regs *regs, unsigned char __user *addr)
 
 #define SWIZ_PTR(p)		((unsigned char __user *)((p) ^ swiz))
 
+#ifdef __BIG_ENDIAN__
 static int emulate_multiple(struct pt_regs *regs, unsigned char __user *addr,
 			    unsigned int reg, unsigned int nb,
 			    unsigned int flags, unsigned int instr,
@@ -390,6 +391,7 @@ static int emulate_fp_pair(unsigned char __user *addr, unsigned int reg,
 		return -EFAULT;
 	return 1;	/* exception handled and fixed up */
 }
+#endif
 
 #ifdef CONFIG_SPE
 
@@ -628,7 +630,7 @@ static int emulate_spe(struct pt_regs *regs, unsigned int reg,
 }
 #endif /* CONFIG_SPE */
 
-#ifdef CONFIG_VSX
+#if defined(CONFIG_VSX) && defined(__BIG_ENDIAN__)
 /*
  * Emulate VSX instructions...
  */
@@ -702,18 +704,28 @@ int fix_alignment(struct pt_regs *regs)
 	unsigned int dsisr;
 	unsigned char __user *addr;
 	unsigned long p, swiz;
-	int ret;
-	union {
+	int ret, i;
+	union data {
 		u64 ll;
 		double dd;
 		unsigned char v[8];
 		struct {
+#ifdef __LITTLE_ENDIAN__
+			int	 low32;
+			unsigned hi32;
+#else
 			unsigned hi32;
 			int	 low32;
+#endif
 		} x32;
 		struct {
+#ifdef __LITTLE_ENDIAN__
+			short	      low16;
+			unsigned char hi48[6];
+#else
 			unsigned char hi48[6];
 			short	      low16;
+#endif
 		} x16;
 	} data;
 
@@ -772,8 +784,9 @@ int fix_alignment(struct pt_regs *regs)
 
 	/* Byteswap little endian loads and stores */
 	swiz = 0;
-	if (regs->msr & MSR_LE) {
+	if ((regs->msr & MSR_LE) != (MSR_KERNEL & MSR_LE)) {
 		flags ^= SW;
+#ifdef __BIG_ENDIAN__
 		/*
 		 * So-called "PowerPC little endian" mode works by
 		 * swizzling addresses rather than by actually doing
@@ -786,11 +799,13 @@ int fix_alignment(struct pt_regs *regs)
 		 */
 		if (cpu_has_feature(CPU_FTR_PPC_LE))
 			swiz = 7;
+#endif
 	}
 
 	/* DAR has the operand effective address */
 	addr = (unsigned char __user *)regs->dar;
 
+#ifdef __BIG_ENDIAN__
 #ifdef CONFIG_VSX
 	if ((instruction & 0xfc00003e) == 0x7c000018) {
 		unsigned int elsize;
@@ -810,7 +825,7 @@ int fix_alignment(struct pt_regs *regs)
 			elsize = 8;
 
 		flags = 0;
-		if (regs->msr & MSR_LE)
+		if ((regs->msr & MSR_LE) != (MSR_KERNEL & MSR_LE))
 			flags |= SW;
 		if (instruction & 0x100)
 			flags |= ST;
@@ -824,6 +839,9 @@ int fix_alignment(struct pt_regs *regs)
 		PPC_WARN_ALIGNMENT(vsx, regs);
 		return emulate_vsx(addr, reg, areg, regs, flags, nb, elsize);
 	}
+#endif
+#else
+	return -EFAULT;
 #endif
 	/* A size of 0 indicates an instruction we don't support, with
 	 * the exception of DCBZ which is handled as a special case here
@@ -839,9 +857,13 @@ int fix_alignment(struct pt_regs *regs)
 	 * function
 	 */
 	if (flags & M) {
+#ifdef __BIG_ENDIAN__
 		PPC_WARN_ALIGNMENT(multiple, regs);
 		return emulate_multiple(regs, addr, reg, nb,
 					flags, instr, swiz);
+#else
+		return -EFAULT;
+#endif
 	}
 
 	/* Verify the address of the operand */
@@ -860,8 +882,12 @@ int fix_alignment(struct pt_regs *regs)
 
 	/* Special case for 16-byte FP loads and stores */
 	if (nb == 16) {
+#ifdef __BIG_ENDIAN__
 		PPC_WARN_ALIGNMENT(fp_pair, regs);
 		return emulate_fp_pair(addr, reg, flags);
+#else
+		return -EFAULT;
+#endif
 	}
 
 	PPC_WARN_ALIGNMENT(unaligned, regs);
@@ -870,24 +896,28 @@ int fix_alignment(struct pt_regs *regs)
 	 * get it from register values
 	 */
 	if (!(flags & ST)) {
-		data.ll = 0;
-		ret = 0;
-		p = (unsigned long) addr;
+		unsigned int start = 0;
+
 		switch (nb) {
-		case 8:
-			ret |= __get_user_inatomic(data.v[0], SWIZ_PTR(p++));
-			ret |= __get_user_inatomic(data.v[1], SWIZ_PTR(p++));
-			ret |= __get_user_inatomic(data.v[2], SWIZ_PTR(p++));
-			ret |= __get_user_inatomic(data.v[3], SWIZ_PTR(p++));
 		case 4:
-			ret |= __get_user_inatomic(data.v[4], SWIZ_PTR(p++));
-			ret |= __get_user_inatomic(data.v[5], SWIZ_PTR(p++));
+			start = offsetof(union data, x32.low32);
+			break;
 		case 2:
-			ret |= __get_user_inatomic(data.v[6], SWIZ_PTR(p++));
-			ret |= __get_user_inatomic(data.v[7], SWIZ_PTR(p++));
-			if (unlikely(ret))
-				return -EFAULT;
+			start = offsetof(union data, x16.low16);
+			break;
 		}
+
+		data.ll = 0;
+		ret = 0;
+		p = (unsigned long)addr;
+
+		for (i = 0; i < nb; i++)
+			ret |= __get_user_inatomic(data.v[start + i],
+						   SWIZ_PTR(p++));
+
+		if (unlikely(ret))
+			return -EFAULT;
+
 	} else if (flags & F) {
 		data.dd = current->thread.TS_FPR(reg);
 		if (flags & S) {
@@ -945,21 +975,24 @@ int fix_alignment(struct pt_regs *regs)
 
 	/* Store result to memory or update registers */
 	if (flags & ST) {
-		ret = 0;
-		p = (unsigned long) addr;
+		unsigned int start = 0;
+
 		switch (nb) {
-		case 8:
-			ret |= __put_user_inatomic(data.v[0], SWIZ_PTR(p++));
-			ret |= __put_user_inatomic(data.v[1], SWIZ_PTR(p++));
-			ret |= __put_user_inatomic(data.v[2], SWIZ_PTR(p++));
-			ret |= __put_user_inatomic(data.v[3], SWIZ_PTR(p++));
 		case 4:
-			ret |= __put_user_inatomic(data.v[4], SWIZ_PTR(p++));
-			ret |= __put_user_inatomic(data.v[5], SWIZ_PTR(p++));
+			start = offsetof(union data, x32.low32);
+			break;
 		case 2:
-			ret |= __put_user_inatomic(data.v[6], SWIZ_PTR(p++));
-			ret |= __put_user_inatomic(data.v[7], SWIZ_PTR(p++));
+			start = offsetof(union data, x16.low16);
+			break;
 		}
+
+		ret = 0;
+		p = (unsigned long)addr;
+
+		for (i = 0; i < nb; i++)
+			ret |= __put_user_inatomic(data.v[start + i],
+						   SWIZ_PTR(p++));
+
 		if (unlikely(ret))
 			return -EFAULT;
 	} else if (flags & F)
-- 
cgit 


From 52055d07ce0a465949552c9c5d65d2b8b37672c5 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:04:50 +1000
Subject: powerpc: Handle VSX alignment faults in little endian mode

Things are complicated by the fact that VSX elements are big
endian ordered even in little endian mode. 8 byte loads and
stores also write to the top 8 bytes of the register.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/align.c | 41 +++++++++++++++++++++++++++++++++--------
 1 file changed, 33 insertions(+), 8 deletions(-)

diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index cce82b1e0374..59f70adcbcd9 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -630,7 +630,7 @@ static int emulate_spe(struct pt_regs *regs, unsigned int reg,
 }
 #endif /* CONFIG_SPE */
 
-#if defined(CONFIG_VSX) && defined(__BIG_ENDIAN__)
+#ifdef CONFIG_VSX
 /*
  * Emulate VSX instructions...
  */
@@ -658,8 +658,25 @@ static int emulate_vsx(unsigned char __user *addr, unsigned int reg,
 
 	lptr = (unsigned long *) ptr;
 
+#ifdef __LITTLE_ENDIAN__
+	if (flags & SW) {
+		elsize = length;
+		sw = length-1;
+	} else {
+		/*
+		 * The elements are BE ordered, even in LE mode, so process
+		 * them in reverse order.
+		 */
+		addr += length - elsize;
+
+		/* 8 byte memory accesses go in the top 8 bytes of the VR */
+		if (length == 8)
+			ptr += 8;
+	}
+#else
 	if (flags & SW)
 		sw = elsize-1;
+#endif
 
 	for (j = 0; j < length; j += elsize) {
 		for (i = 0; i < elsize; ++i) {
@@ -669,19 +686,31 @@ static int emulate_vsx(unsigned char __user *addr, unsigned int reg,
 				ret |= __get_user(ptr[i^sw], addr + i);
 		}
 		ptr  += elsize;
+#ifdef __LITTLE_ENDIAN__
+		addr -= elsize;
+#else
 		addr += elsize;
+#endif
 	}
 
+#ifdef __BIG_ENDIAN__
+#define VSX_HI 0
+#define VSX_LO 1
+#else
+#define VSX_HI 1
+#define VSX_LO 0
+#endif
+
 	if (!ret) {
 		if (flags & U)
 			regs->gpr[areg] = regs->dar;
 
 		/* Splat load copies the same data to top and bottom 8 bytes */
 		if (flags & SPLT)
-			lptr[1] = lptr[0];
-		/* For 8 byte loads, zero the top 8 bytes */
+			lptr[VSX_LO] = lptr[VSX_HI];
+		/* For 8 byte loads, zero the low 8 bytes */
 		else if (!(flags & ST) && (8 == length))
-			lptr[1] = 0;
+			lptr[VSX_LO] = 0;
 	} else
 		return -EFAULT;
 
@@ -805,7 +834,6 @@ int fix_alignment(struct pt_regs *regs)
 	/* DAR has the operand effective address */
 	addr = (unsigned char __user *)regs->dar;
 
-#ifdef __BIG_ENDIAN__
 #ifdef CONFIG_VSX
 	if ((instruction & 0xfc00003e) == 0x7c000018) {
 		unsigned int elsize;
@@ -839,9 +867,6 @@ int fix_alignment(struct pt_regs *regs)
 		PPC_WARN_ALIGNMENT(vsx, regs);
 		return emulate_vsx(addr, reg, areg, regs, flags, nb, elsize);
 	}
-#endif
-#else
-	return -EFAULT;
 #endif
 	/* A size of 0 indicates an instruction we don't support, with
 	 * the exception of DCBZ which is handled as a special case here
-- 
cgit 


From 7a332b0c9a59e0b0777dec55eefdda0f9a24ac52 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:04:51 +1000
Subject: powerpc: Use generic checksum code in little endian

We need to fix some endian issues in our checksum code. For now
just enable the generic checksum routines for little endian builds.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/Kconfig                | 3 +++
 arch/powerpc/include/asm/checksum.h | 5 +++++
 arch/powerpc/kernel/ppc_ksyms.c     | 2 ++
 arch/powerpc/lib/Makefile           | 9 +++++++--
 4 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 38f3b7e47ec5..2c69c43ba68e 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -139,6 +139,9 @@ config PPC
 	select OLD_SIGACTION if PPC32
 	select HAVE_DEBUG_STACKOVERFLOW
 
+config GENERIC_CSUM
+	def_bool CPU_LITTLE_ENDIAN
+
 config EARLY_PRINTK
 	bool
 	default y
diff --git a/arch/powerpc/include/asm/checksum.h b/arch/powerpc/include/asm/checksum.h
index ce0c28495f9a..8251a3ba870f 100644
--- a/arch/powerpc/include/asm/checksum.h
+++ b/arch/powerpc/include/asm/checksum.h
@@ -14,6 +14,9 @@
  * which always checksum on 4 octet boundaries.  ihl is the number
  * of 32-bit words and is always >= 5.
  */
+#ifdef CONFIG_GENERIC_CSUM
+#include <asm-generic/checksum.h>
+#else
 extern __sum16 ip_fast_csum(const void *iph, unsigned int ihl);
 
 /*
@@ -123,5 +126,7 @@ static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
 	return sum;
 #endif
 }
+
+#endif
 #endif /* __KERNEL__ */
 #endif
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index 21646dbe1bb3..3b485c5cff10 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -79,10 +79,12 @@ EXPORT_SYMBOL(strlen);
 EXPORT_SYMBOL(strcmp);
 EXPORT_SYMBOL(strncmp);
 
+#ifndef CONFIG_GENERIC_CSUM
 EXPORT_SYMBOL(csum_partial);
 EXPORT_SYMBOL(csum_partial_copy_generic);
 EXPORT_SYMBOL(ip_fast_csum);
 EXPORT_SYMBOL(csum_tcpudp_magic);
+#endif
 
 EXPORT_SYMBOL(__copy_tofrom_user);
 EXPORT_SYMBOL(__clear_user);
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 450433276699..33ab26112123 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -10,15 +10,20 @@ CFLAGS_REMOVE_code-patching.o = -pg
 CFLAGS_REMOVE_feature-fixups.o = -pg
 
 obj-y			:= string.o alloc.o \
-			   checksum_$(CONFIG_WORD_SIZE).o crtsavres.o
+			   crtsavres.o
 obj-$(CONFIG_PPC32)	+= div64.o copy_32.o
 obj-$(CONFIG_HAS_IOMEM)	+= devres.o
 
 obj-$(CONFIG_PPC64)	+= copypage_64.o copyuser_64.o \
 			   memcpy_64.o usercopy_64.o mem_64.o string.o \
-			   checksum_wrappers_64.o hweight_64.o \
+			   hweight_64.o \
 			   copyuser_power7.o string_64.o copypage_power7.o \
 			   memcpy_power7.o
+ifeq ($(CONFIG_GENERIC_CSUM),)
+obj-y			+= checksum_$(CONFIG_WORD_SIZE).o
+obj-$(CONFIG_PPC64)	+= checksum_wrappers_64.o
+endif
+
 obj-$(CONFIG_PPC_EMULATE_SSTEP)	+= sstep.o ldstfp.o
 
 ifeq ($(CONFIG_PPC64),y)
-- 
cgit 


From de577a356848a629b2c7f252ca3d1bc87375b52b Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:04:52 +1000
Subject: powerpc: Use generic memcpy code in little endian

We need to fix some endian issues in our memcpy code. For now
just enable the generic memcpy routine for little endian builds.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/string.h | 4 ++++
 arch/powerpc/kernel/ppc_ksyms.c   | 2 ++
 arch/powerpc/lib/Makefile         | 9 ++++++---
 3 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/include/asm/string.h b/arch/powerpc/include/asm/string.h
index e40010abcaf1..0dffad6bcc84 100644
--- a/arch/powerpc/include/asm/string.h
+++ b/arch/powerpc/include/asm/string.h
@@ -10,7 +10,9 @@
 #define __HAVE_ARCH_STRNCMP
 #define __HAVE_ARCH_STRCAT
 #define __HAVE_ARCH_MEMSET
+#ifdef __BIG_ENDIAN__
 #define __HAVE_ARCH_MEMCPY
+#endif
 #define __HAVE_ARCH_MEMMOVE
 #define __HAVE_ARCH_MEMCMP
 #define __HAVE_ARCH_MEMCHR
@@ -22,7 +24,9 @@ extern int strcmp(const char *,const char *);
 extern int strncmp(const char *, const char *, __kernel_size_t);
 extern char * strcat(char *, const char *);
 extern void * memset(void *,int,__kernel_size_t);
+#ifdef __BIG_ENDIAN__
 extern void * memcpy(void *,const void *,__kernel_size_t);
+#endif
 extern void * memmove(void *,const void *,__kernel_size_t);
 extern int memcmp(const void *,const void *,__kernel_size_t);
 extern void * memchr(const void *,int,__kernel_size_t);
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index 3b485c5cff10..60bbeb29f9b8 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -148,7 +148,9 @@ EXPORT_SYMBOL(__ucmpdi2);
 #endif
 long long __bswapdi2(long long);
 EXPORT_SYMBOL(__bswapdi2);
+#ifdef __BIG_ENDIAN__
 EXPORT_SYMBOL(memcpy);
+#endif
 EXPORT_SYMBOL(memset);
 EXPORT_SYMBOL(memmove);
 EXPORT_SYMBOL(memcmp);
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 33ab26112123..5310132856c1 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -15,15 +15,18 @@ obj-$(CONFIG_PPC32)	+= div64.o copy_32.o
 obj-$(CONFIG_HAS_IOMEM)	+= devres.o
 
 obj-$(CONFIG_PPC64)	+= copypage_64.o copyuser_64.o \
-			   memcpy_64.o usercopy_64.o mem_64.o string.o \
+			   usercopy_64.o mem_64.o string.o \
 			   hweight_64.o \
-			   copyuser_power7.o string_64.o copypage_power7.o \
-			   memcpy_power7.o
+			   copyuser_power7.o string_64.o copypage_power7.o
 ifeq ($(CONFIG_GENERIC_CSUM),)
 obj-y			+= checksum_$(CONFIG_WORD_SIZE).o
 obj-$(CONFIG_PPC64)	+= checksum_wrappers_64.o
 endif
 
+ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),)
+obj-$(CONFIG_PPC64)		+= memcpy_power7.o memcpy_64.o 
+endif
+
 obj-$(CONFIG_PPC_EMULATE_SSTEP)	+= sstep.o ldstfp.o
 
 ifeq ($(CONFIG_PPC64),y)
-- 
cgit 


From a0588015deab1844261b27a67ae6f5b910fe2830 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:04:53 +1000
Subject: powerpc: uname should return ppc64le/ppcle on little endian builds

We need to distinguish between big endian and little endian
environments, so fix uname to return the right thing.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/Makefile | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 51cfb78d4061..debfa2b1c1de 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -36,17 +36,26 @@ KBUILD_DEFCONFIG := ppc64_defconfig
 endif
 
 ifeq ($(CONFIG_PPC64),y)
-OLDARCH	:= ppc64
-
 new_nm := $(shell if $(NM) --help 2>&1 | grep -- '--synthetic' > /dev/null; then echo y; else echo n; fi)
 
 ifeq ($(new_nm),y)
 NM		:= $(NM) --synthetic
 endif
+endif
 
+ifeq ($(CONFIG_PPC64),y)
+ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
+OLDARCH	:= ppc64le
+else
+OLDARCH	:= ppc64
+endif
+else
+ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
+OLDARCH	:= ppcle
 else
 OLDARCH	:= ppc
 endif
+endif
 
 # It seems there are times we use this Makefile without
 # including the config file, but this replicates the old behaviour
-- 
cgit 


From 1cc79bc80606229b0e7e56c76ee3cb3594409aa9 Mon Sep 17 00:00:00 2001
From: Alistair Popple <alistair@popple.id.au>
Date: Mon, 23 Sep 2013 12:04:54 +1000
Subject: powerpc: Little endian fixes for platforms/powernv/opal.c

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/powernv/opal.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 2911abe550f1..4ffa75ef284b 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -372,7 +372,7 @@ static irqreturn_t opal_interrupt(int irq, void *data)
 static int __init opal_init(void)
 {
 	struct device_node *np, *consoles;
-	const u32 *irqs;
+	const __be32 *irqs;
 	int rc, i, irqlen;
 
 	opal_node = of_find_node_by_path("/ibm,opal");
-- 
cgit 


From 044cb69c53f286673b6809641f9c0ce929f9f221 Mon Sep 17 00:00:00 2001
From: Alistair Popple <alistair@popple.id.au>
Date: Mon, 23 Sep 2013 12:04:55 +1000
Subject: powerpc: Little endian fix for arch/powerpc/platforms/powernv/pci.c

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/powernv/pci.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index a28d3b5e6393..912221565c5c 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -462,8 +462,8 @@ void pnv_pci_setup_iommu_table(struct iommu_table *tbl,
 static struct iommu_table *pnv_pci_setup_bml_iommu(struct pci_controller *hose)
 {
 	struct iommu_table *tbl;
-	const __be64 *basep, *swinvp;
-	const __be32 *sizep;
+	const __be64 *basep;
+	const __be32 *sizep, *swinvp;
 
 	basep = of_get_property(hose->dn, "linux,tce-base", NULL);
 	sizep = of_get_property(hose->dn, "linux,tce-size", NULL);
@@ -484,8 +484,9 @@ static struct iommu_table *pnv_pci_setup_bml_iommu(struct pci_controller *hose)
 	swinvp = of_get_property(hose->dn, "linux,tce-sw-invalidate-info",
 				 NULL);
 	if (swinvp) {
-		tbl->it_busno = swinvp[1];
-		tbl->it_index = (unsigned long)ioremap(swinvp[0], 8);
+		tbl->it_busno = of_read_ulong(&swinvp[1], 2);
+		tbl->it_index =
+			(unsigned long)ioremap(of_read_number(swinvp, 2), 8);
 		tbl->it_type = TCE_PCI_SWINV_CREATE | TCE_PCI_SWINV_FREE;
 	}
 	return tbl;
-- 
cgit 


From 8c5fcc83afd0738a089641bc0862b9058e9cfd06 Mon Sep 17 00:00:00 2001
From: Alistair Popple <alistair@popple.id.au>
Date: Mon, 23 Sep 2013 12:04:56 +1000
Subject: powerpc: Little endian fix for
 arch/powerpc/platforms/powernv/pci-p5ioc2.c

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/powernv/pci-p5ioc2.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/pci-p5ioc2.c b/arch/powerpc/platforms/powernv/pci-p5ioc2.c
index b68db6325c1b..f8b4bd8afb2e 100644
--- a/arch/powerpc/platforms/powernv/pci-p5ioc2.c
+++ b/arch/powerpc/platforms/powernv/pci-p5ioc2.c
@@ -99,7 +99,7 @@ static void __init pnv_pci_init_p5ioc2_phb(struct device_node *np, u64 hub_id,
 					   void *tce_mem, u64 tce_size)
 {
 	struct pnv_phb *phb;
-	const u64 *prop64;
+	const __be64 *prop64;
 	u64 phb_id;
 	int64_t rc;
 	static int primary = 1;
@@ -178,7 +178,7 @@ static void __init pnv_pci_init_p5ioc2_phb(struct device_node *np, u64 hub_id,
 void __init pnv_pci_init_p5ioc2_hub(struct device_node *np)
 {
 	struct device_node *phbn;
-	const u64 *prop64;
+	const __be64 *prop64;
 	u64 hub_id;
 	void *tce_mem;
 	uint64_t tce_per_phb;
-- 
cgit 


From c681b93c1fd016e94c8f3dd948dcc28a78790df7 Mon Sep 17 00:00:00 2001
From: Alistair Popple <alistair@popple.id.au>
Date: Mon, 23 Sep 2013 12:04:57 +1000
Subject: powerpc: Little endian sparse clean up for
 arch/powerpc/platforms/powernv/pci-ioda.c

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/powernv/pci-ioda.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 74a5a5773b1f..9a903ed1e115 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -1106,7 +1106,7 @@ void __init pnv_pci_init_ioda_phb(struct device_node *np,
 	struct pci_controller *hose;
 	struct pnv_phb *phb;
 	unsigned long size, m32map_off, iomap_off, pemap_off;
-	const u64 *prop64;
+	const __be64 *prop64;
 	const u32 *prop32;
 	int len;
 	u64 phb_id;
@@ -1285,7 +1285,7 @@ void __init pnv_pci_init_ioda2_phb(struct device_node *np)
 void __init pnv_pci_init_ioda_hub(struct device_node *np)
 {
 	struct device_node *phbn;
-	const u64 *prop64;
+	const __be64 *prop64;
 	u64 hub_id;
 
 	pr_info("Probing IODA IO-Hub %s\n", np->full_name);
-- 
cgit 


From 46d319e5d8c8add09378a67e27237504d0132283 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Mon, 23 Sep 2013 12:04:58 +1000
Subject: powerpc/powernv: Fix endian issues in OPAL RTC driver

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/powernv/opal-rtc.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/powerpc/platforms/powernv/opal-rtc.c b/arch/powerpc/platforms/powernv/opal-rtc.c
index 2aa7641aac9b..dbfdba35fcf3 100644
--- a/arch/powerpc/platforms/powernv/opal-rtc.c
+++ b/arch/powerpc/platforms/powernv/opal-rtc.c
@@ -48,6 +48,8 @@ unsigned long __init opal_get_boot_time(void)
 	}
 	if (rc != OPAL_SUCCESS)
 		return 0;
+	y_m_d = be32_to_cpu(y_m_d);
+	h_m_s_ms = be64_to_cpu(h_m_s_ms);
 	opal_to_tm(y_m_d, h_m_s_ms, &tm);
 	return mktime(tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
 		      tm.tm_hour, tm.tm_min, tm.tm_sec);
@@ -68,6 +70,8 @@ void opal_get_rtc_time(struct rtc_time *tm)
 	}
 	if (rc != OPAL_SUCCESS)
 		return;
+	y_m_d = be32_to_cpu(y_m_d);
+	h_m_s_ms = be64_to_cpu(h_m_s_ms);
 	opal_to_tm(y_m_d, h_m_s_ms, tm);
 }
 
@@ -86,6 +90,9 @@ int opal_set_rtc_time(struct rtc_time *tm)
 	h_m_s_ms |= ((u64)bin2bcd(tm->tm_min)) << 48;
 	h_m_s_ms |= ((u64)bin2bcd(tm->tm_sec)) << 40;
 
+	y_m_d = cpu_to_be32(y_m_d);
+	h_m_s_ms = cpu_to_be64(h_m_s_ms);
+
 	while (rc == OPAL_BUSY || rc == OPAL_BUSY_EVENT) {
 		rc = opal_rtc_write(y_m_d, h_m_s_ms);
 		if (rc == OPAL_BUSY_EVENT)
-- 
cgit 


From bf8e0f891a32ba24fa8811e496fabb449589d942 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Mon, 23 Sep 2013 12:04:59 +1000
Subject: powerpc/powernv: Fix endian issues in OPAL ICS backend

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/sysdev/xics/ics-opal.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/arch/powerpc/sysdev/xics/ics-opal.c b/arch/powerpc/sysdev/xics/ics-opal.c
index 39d72212655e..3c6ee1b64e5d 100644
--- a/arch/powerpc/sysdev/xics/ics-opal.c
+++ b/arch/powerpc/sysdev/xics/ics-opal.c
@@ -112,6 +112,7 @@ static int ics_opal_set_affinity(struct irq_data *d,
 				 bool force)
 {
 	unsigned int hw_irq = (unsigned int)irqd_to_hwirq(d);
+	__be16 oserver;
 	int16_t server;
 	int8_t priority;
 	int64_t rc;
@@ -120,13 +121,13 @@ static int ics_opal_set_affinity(struct irq_data *d,
 	if (hw_irq == XICS_IPI || hw_irq == XICS_IRQ_SPURIOUS)
 		return -1;
 
-	rc = opal_get_xive(hw_irq, &server, &priority);
+	rc = opal_get_xive(hw_irq, &oserver, &priority);
 	if (rc != OPAL_SUCCESS) {
-		pr_err("%s: opal_set_xive(irq=%d [hw 0x%x] server=%x)"
-		       " error %lld\n",
-		       __func__, d->irq, hw_irq, server, rc);
+		pr_err("%s: opal_get_xive(irq=%d [hw 0x%x]) error %lld\n",
+		       __func__, d->irq, hw_irq, rc);
 		return -1;
 	}
+	server = be16_to_cpu(oserver);
 
 	wanted_server = xics_get_irq_server(d->irq, cpumask, 1);
 	if (wanted_server < 0) {
@@ -181,7 +182,7 @@ static int ics_opal_map(struct ics *ics, unsigned int virq)
 {
 	unsigned int hw_irq = (unsigned int)virq_to_hw(virq);
 	int64_t rc;
-	int16_t server;
+	__be16 server;
 	int8_t priority;
 
 	if (WARN_ON(hw_irq == XICS_IPI || hw_irq == XICS_IRQ_SPURIOUS))
@@ -201,7 +202,7 @@ static int ics_opal_map(struct ics *ics, unsigned int virq)
 static void ics_opal_mask_unknown(struct ics *ics, unsigned long vec)
 {
 	int64_t rc;
-	int16_t server;
+	__be16 server;
 	int8_t priority;
 
 	/* Check if HAL knows about this interrupt */
@@ -215,14 +216,14 @@ static void ics_opal_mask_unknown(struct ics *ics, unsigned long vec)
 static long ics_opal_get_server(struct ics *ics, unsigned long vec)
 {
 	int64_t rc;
-	int16_t server;
+	__be16 server;
 	int8_t priority;
 
 	/* Check if HAL knows about this interrupt */
 	rc = opal_get_xive(vec, &server, &priority);
 	if (rc != OPAL_SUCCESS)
 		return -1;
-	return ics_opal_unmangle_server(server);
+	return ics_opal_unmangle_server(be16_to_cpu(server));
 }
 
 int __init ics_opal_init(void)
-- 
cgit 


From 81063cdd61795f0db85725bae4945d0762269e04 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Mon, 23 Sep 2013 12:05:00 +1000
Subject: powerpc/powernv: Make OPAL NVRAM device tree accesses endian safe

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/powernv/opal-nvram.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/opal-nvram.c b/arch/powerpc/platforms/powernv/opal-nvram.c
index 3f83e1ae26ac..acd9f7e96678 100644
--- a/arch/powerpc/platforms/powernv/opal-nvram.c
+++ b/arch/powerpc/platforms/powernv/opal-nvram.c
@@ -65,7 +65,7 @@ static ssize_t opal_nvram_write(char *buf, size_t count, loff_t *index)
 void __init opal_nvram_init(void)
 {
 	struct device_node *np;
-	const u32 *nbytes_p;
+	const __be32 *nbytes_p;
 
 	np = of_find_compatible_node(NULL, NULL, "ibm,opal-nvram");
 	if (np == NULL)
@@ -76,7 +76,7 @@ void __init opal_nvram_init(void)
 		of_node_put(np);
 		return;
 	}
-	nvram_size = *nbytes_p;
+	nvram_size = be32_to_cpup(nbytes_p);
 
 	printk(KERN_INFO "OPAL nvram setup, %u bytes\n", nvram_size);
 	of_node_put(np);
-- 
cgit 


From 3a1a46612d4882462e8d06866df717e1707abbba Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Mon, 23 Sep 2013 12:05:01 +1000
Subject: powerpc/powernv: Fix endian issues in powernv PCI code

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/powernv/pci-ioda.c | 31 +++++++++++++++++--------------
 arch/powerpc/platforms/powernv/pci.c      | 27 +++++++++++++--------------
 2 files changed, 30 insertions(+), 28 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 9a903ed1e115..f9cb6c53a0ca 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -457,7 +457,7 @@ static void pnv_ioda_setup_bus_dma(struct pnv_ioda_pe *pe, struct pci_bus *bus)
 static void pnv_pci_ioda1_tce_invalidate(struct iommu_table *tbl,
 					 u64 *startp, u64 *endp)
 {
-	u64 __iomem *invalidate = (u64 __iomem *)tbl->it_index;
+	__be64 __iomem *invalidate = (__be64 __iomem *)tbl->it_index;
 	unsigned long start, end, inc;
 
 	start = __pa(startp);
@@ -484,7 +484,7 @@ static void pnv_pci_ioda1_tce_invalidate(struct iommu_table *tbl,
 
         mb(); /* Ensure above stores are visible */
         while (start <= end) {
-                __raw_writeq(start, invalidate);
+                __raw_writeq(cpu_to_be64(start), invalidate);
                 start += inc;
         }
 
@@ -499,7 +499,7 @@ static void pnv_pci_ioda2_tce_invalidate(struct pnv_ioda_pe *pe,
 					 u64 *startp, u64 *endp)
 {
 	unsigned long start, end, inc;
-	u64 __iomem *invalidate = (u64 __iomem *)tbl->it_index;
+	__be64 __iomem *invalidate = (__be64 __iomem *)tbl->it_index;
 
 	/* We'll invalidate DMA address in PE scope */
 	start = 0x2ul << 60;
@@ -515,7 +515,7 @@ static void pnv_pci_ioda2_tce_invalidate(struct pnv_ioda_pe *pe,
 	mb();
 
 	while (start <= end) {
-		__raw_writeq(start, invalidate);
+		__raw_writeq(cpu_to_be64(start), invalidate);
 		start += inc;
 	}
 }
@@ -786,8 +786,7 @@ static int pnv_pci_ioda_msi_setup(struct pnv_phb *phb, struct pci_dev *dev,
 	struct irq_data *idata;
 	struct irq_chip *ichip;
 	unsigned int xive_num = hwirq - phb->msi_base;
-	uint64_t addr64;
-	uint32_t addr32, data;
+	__be32 data;
 	int rc;
 
 	/* No PE assigned ? bail out ... no MSI for you ! */
@@ -811,6 +810,8 @@ static int pnv_pci_ioda_msi_setup(struct pnv_phb *phb, struct pci_dev *dev,
 	}
 
 	if (is_64) {
+		__be64 addr64;
+
 		rc = opal_get_msi_64(phb->opal_id, pe->mve_number, xive_num, 1,
 				     &addr64, &data);
 		if (rc) {
@@ -818,9 +819,11 @@ static int pnv_pci_ioda_msi_setup(struct pnv_phb *phb, struct pci_dev *dev,
 				pci_name(dev), rc);
 			return -EIO;
 		}
-		msg->address_hi = addr64 >> 32;
-		msg->address_lo = addr64 & 0xfffffffful;
+		msg->address_hi = be64_to_cpu(addr64) >> 32;
+		msg->address_lo = be64_to_cpu(addr64) & 0xfffffffful;
 	} else {
+		__be32 addr32;
+
 		rc = opal_get_msi_32(phb->opal_id, pe->mve_number, xive_num, 1,
 				     &addr32, &data);
 		if (rc) {
@@ -829,9 +832,9 @@ static int pnv_pci_ioda_msi_setup(struct pnv_phb *phb, struct pci_dev *dev,
 			return -EIO;
 		}
 		msg->address_hi = 0;
-		msg->address_lo = addr32;
+		msg->address_lo = be32_to_cpu(addr32);
 	}
-	msg->data = data;
+	msg->data = be32_to_cpu(data);
 
 	/*
 	 * Change the IRQ chip for the MSI interrupts on PHB3.
@@ -1107,7 +1110,7 @@ void __init pnv_pci_init_ioda_phb(struct device_node *np,
 	struct pnv_phb *phb;
 	unsigned long size, m32map_off, iomap_off, pemap_off;
 	const __be64 *prop64;
-	const u32 *prop32;
+	const __be32 *prop32;
 	int len;
 	u64 phb_id;
 	void *aux;
@@ -1142,8 +1145,8 @@ void __init pnv_pci_init_ioda_phb(struct device_node *np,
 	spin_lock_init(&phb->lock);
 	prop32 = of_get_property(np, "bus-range", &len);
 	if (prop32 && len == 8) {
-		hose->first_busno = prop32[0];
-		hose->last_busno = prop32[1];
+		hose->first_busno = be32_to_cpu(prop32[0]);
+		hose->last_busno = be32_to_cpu(prop32[1]);
 	} else {
 		pr_warn("  Broken <bus-range> on %s\n", np->full_name);
 		hose->first_busno = 0;
@@ -1175,7 +1178,7 @@ void __init pnv_pci_init_ioda_phb(struct device_node *np,
 	if (!prop32)
 		phb->ioda.total_pe = 1;
 	else
-		phb->ioda.total_pe = *prop32;
+		phb->ioda.total_pe = be32_to_cpup(prop32);
 
 	phb->ioda.m32_size = resource_size(&hose->mem_resources[0]);
 	/* FW Has already off top 64k of M32 space (MSI space) */
diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index 912221565c5c..2f73e0da2603 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -236,7 +236,7 @@ static void pnv_pci_config_check_eeh(struct pnv_phb *phb,
 {
 	s64	rc;
 	u8	fstate;
-	u16	pcierr;
+	__be16	pcierr;
 	u32	pe_no;
 
 	/*
@@ -283,16 +283,16 @@ int pnv_pci_cfg_read(struct device_node *dn,
 		break;
 	}
 	case 2: {
-		u16 v16;
+		__be16 v16;
 		rc = opal_pci_config_read_half_word(phb->opal_id, bdfn, where,
 						   &v16);
-		*val = (rc == OPAL_SUCCESS) ? v16 : 0xffff;
+		*val = (rc == OPAL_SUCCESS) ? be16_to_cpu(v16) : 0xffff;
 		break;
 	}
 	case 4: {
-		u32 v32;
+		__be32 v32;
 		rc = opal_pci_config_read_word(phb->opal_id, bdfn, where, &v32);
-		*val = (rc == OPAL_SUCCESS) ? v32 : 0xffffffff;
+		*val = (rc == OPAL_SUCCESS) ? be32_to_cpu(v32) : 0xffffffff;
 		break;
 	}
 	default:
@@ -404,7 +404,7 @@ static int pnv_tce_build(struct iommu_table *tbl, long index, long npages,
 			 struct dma_attrs *attrs)
 {
 	u64 proto_tce;
-	u64 *tcep, *tces;
+	__be64 *tcep, *tces;
 	u64 rpn;
 
 	proto_tce = TCE_PCI_READ; // Read allowed
@@ -416,7 +416,7 @@ static int pnv_tce_build(struct iommu_table *tbl, long index, long npages,
 	rpn = __pa(uaddr) >> TCE_SHIFT;
 
 	while (npages--)
-		*(tcep++) = proto_tce | (rpn++ << TCE_RPN_SHIFT);
+		*(tcep++) = cpu_to_be64(proto_tce | (rpn++ << TCE_RPN_SHIFT));
 
 	/* Some implementations won't cache invalid TCEs and thus may not
 	 * need that flush. We'll probably turn it_type into a bit mask
@@ -430,12 +430,12 @@ static int pnv_tce_build(struct iommu_table *tbl, long index, long npages,
 
 static void pnv_tce_free(struct iommu_table *tbl, long index, long npages)
 {
-	u64 *tcep, *tces;
+	__be64 *tcep, *tces;
 
 	tces = tcep = ((u64 *)tbl->it_base) + index - tbl->it_offset;
 
 	while (npages--)
-		*(tcep++) = 0;
+		*(tcep++) = cpu_to_be64(0);
 
 	if (tbl->it_type & TCE_PCI_SWINV_FREE)
 		pnv_pci_ioda_tce_invalidate(tbl, tces, tcep - 1);
@@ -462,8 +462,8 @@ void pnv_pci_setup_iommu_table(struct iommu_table *tbl,
 static struct iommu_table *pnv_pci_setup_bml_iommu(struct pci_controller *hose)
 {
 	struct iommu_table *tbl;
-	const __be64 *basep;
-	const __be32 *sizep, *swinvp;
+	const __be64 *basep, *swinvp;
+	const __be32 *sizep;
 
 	basep = of_get_property(hose->dn, "linux,tce-base", NULL);
 	sizep = of_get_property(hose->dn, "linux,tce-size", NULL);
@@ -484,9 +484,8 @@ static struct iommu_table *pnv_pci_setup_bml_iommu(struct pci_controller *hose)
 	swinvp = of_get_property(hose->dn, "linux,tce-sw-invalidate-info",
 				 NULL);
 	if (swinvp) {
-		tbl->it_busno = of_read_ulong(&swinvp[1], 2);
-		tbl->it_index =
-			(unsigned long)ioremap(of_read_number(swinvp, 2), 8);
+		tbl->it_busno = swinvp[1];
+		tbl->it_index = (unsigned long)ioremap(be64_to_cpup(swinvp), 8);
 		tbl->it_type = TCE_PCI_SWINV_CREATE | TCE_PCI_SWINV_FREE;
 	}
 	return tbl;
-- 
cgit 


From 4f89363b1187ca0cc36ee6aebe0bee550f74288d Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Mon, 23 Sep 2013 12:05:02 +1000
Subject: powerpc/powernv: Fix endian issues in OPAL console and udbg backend

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/opal.h       |  8 ++++----
 arch/powerpc/platforms/powernv/opal.c | 28 ++++++++++++++++------------
 2 files changed, 20 insertions(+), 16 deletions(-)

diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index c5cd72833d6e..6622ea438f0e 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -537,12 +537,12 @@ typedef struct oppanel_line {
 } oppanel_line_t;
 
 /* API functions */
-int64_t opal_console_write(int64_t term_number, int64_t *length,
+int64_t opal_console_write(int64_t term_number, __be64 *length,
 			   const uint8_t *buffer);
-int64_t opal_console_read(int64_t term_number, int64_t *length,
+int64_t opal_console_read(int64_t term_number, __be64 *length,
 			  uint8_t *buffer);
 int64_t opal_console_write_buffer_space(int64_t term_number,
-					int64_t *length);
+					__be64 *length);
 int64_t opal_rtc_read(uint32_t *year_month_day,
 		      uint64_t *hour_minute_second_millisecond);
 int64_t opal_rtc_write(uint32_t year_month_day,
@@ -552,7 +552,7 @@ int64_t opal_cec_reboot(void);
 int64_t opal_read_nvram(uint64_t buffer, uint64_t size, uint64_t offset);
 int64_t opal_write_nvram(uint64_t buffer, uint64_t size, uint64_t offset);
 int64_t opal_handle_interrupt(uint64_t isn, uint64_t *outstanding_event_mask);
-int64_t opal_poll_events(uint64_t *outstanding_event_mask);
+int64_t opal_poll_events(__be64 *outstanding_event_mask);
 int64_t opal_pci_set_hub_tce_memory(uint64_t hub_id, uint64_t tce_mem_addr,
 				    uint64_t tce_mem_size);
 int64_t opal_pci_set_phb_tce_memory(uint64_t phb_id, uint64_t tce_mem_addr,
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 4ffa75ef284b..eb7bf3bf604b 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -164,27 +164,28 @@ void opal_notifier_disable(void)
 
 int opal_get_chars(uint32_t vtermno, char *buf, int count)
 {
-	s64 len, rc;
-	u64 evt;
+	s64 rc;
+	__be64 evt, len;
 
 	if (!opal.entry)
 		return -ENODEV;
 	opal_poll_events(&evt);
-	if ((evt & OPAL_EVENT_CONSOLE_INPUT) == 0)
+	if ((be64_to_cpu(evt) & OPAL_EVENT_CONSOLE_INPUT) == 0)
 		return 0;
-	len = count;
-	rc = opal_console_read(vtermno, &len, buf);
+	len = cpu_to_be64(count);
+	rc = opal_console_read(vtermno, &len, buf);	
 	if (rc == OPAL_SUCCESS)
-		return len;
+		return be64_to_cpu(len);
 	return 0;
 }
 
 int opal_put_chars(uint32_t vtermno, const char *data, int total_len)
 {
 	int written = 0;
+	__be64 olen;
 	s64 len, rc;
 	unsigned long flags;
-	u64 evt;
+	__be64 evt;
 
 	if (!opal.entry)
 		return -ENODEV;
@@ -199,13 +200,14 @@ int opal_put_chars(uint32_t vtermno, const char *data, int total_len)
 	 */
 	spin_lock_irqsave(&opal_write_lock, flags);
 	if (firmware_has_feature(FW_FEATURE_OPALv2)) {
-		rc = opal_console_write_buffer_space(vtermno, &len);
+		rc = opal_console_write_buffer_space(vtermno, &olen);
+		len = be64_to_cpu(olen);
 		if (rc || len < total_len) {
 			spin_unlock_irqrestore(&opal_write_lock, flags);
 			/* Closed -> drop characters */
 			if (rc)
 				return total_len;
-			opal_poll_events(&evt);
+			opal_poll_events(NULL);
 			return -EAGAIN;
 		}
 	}
@@ -216,8 +218,9 @@ int opal_put_chars(uint32_t vtermno, const char *data, int total_len)
 	rc = OPAL_BUSY;
 	while(total_len > 0 && (rc == OPAL_BUSY ||
 				rc == OPAL_BUSY_EVENT || rc == OPAL_SUCCESS)) {
-		len = total_len;
-		rc = opal_console_write(vtermno, &len, data);
+		olen = cpu_to_be64(total_len);
+		rc = opal_console_write(vtermno, &olen, data);
+		len = be64_to_cpu(olen);
 
 		/* Closed or other error drop */
 		if (rc != OPAL_SUCCESS && rc != OPAL_BUSY &&
@@ -237,7 +240,8 @@ int opal_put_chars(uint32_t vtermno, const char *data, int total_len)
 		 */
 		do
 			opal_poll_events(&evt);
-		while(rc == OPAL_SUCCESS && (evt & OPAL_EVENT_CONSOLE_OUTPUT));
+		while(rc == OPAL_SUCCESS &&
+			(be64_to_cpu(evt) & OPAL_EVENT_CONSOLE_OUTPUT));
 	}
 	spin_unlock_irqrestore(&opal_write_lock, flags);
 	return written;
-- 
cgit 


From be401b372fae219cf04c0c38890834c813d8dc90 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Mon, 23 Sep 2013 12:05:03 +1000
Subject: powerpc/powernv: Fix OPAL entry and exit in little endian mode

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/powernv/opal-wrappers.S | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S
index 8f3844535fbb..2a03e1e63c7a 100644
--- a/arch/powerpc/platforms/powernv/opal-wrappers.S
+++ b/arch/powerpc/platforms/powernv/opal-wrappers.S
@@ -34,7 +34,7 @@
 	mtmsrd	r12,1;			\
 	LOAD_REG_ADDR(r0,.opal_return);	\
 	mtlr	r0;			\
-	li	r0,MSR_DR|MSR_IR;	\
+	li	r0,MSR_DR|MSR_IR|MSR_LE;\
 	andc	r12,r12,r0;		\
 	li	r0,token;		\
 	mtspr	SPRN_HSRR1,r12;		\
@@ -45,6 +45,13 @@
 	hrfid
 
 _STATIC(opal_return)
+	/*
+	 * Fixup endian on OPAL return... we should be able to simplify
+	 * this by instead converting the below trampoline to a set of
+	 * bytes (always BE) since MSR:LE will end up fixed up as a side
+	 * effect of the rfid.
+	 */
+	FIXUP_ENDIAN
 	ld	r2,PACATOC(r13);
 	ld	r4,8(r1);
 	ld	r5,16(r1);
-- 
cgit 


From 29186097f9267938af399897482c5a53686b3cce Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Mon, 23 Sep 2013 12:05:04 +1000
Subject: powerpc/powernv: Don't register exception handlers in little endian
 mode

The powernv exception handlers are not ready to take exceptions
in little endian mode, so disable them.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/powernv/opal.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index eb7bf3bf604b..c2391bbdab12 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -77,6 +77,7 @@ int __init early_init_dt_scan_opal(unsigned long node,
 
 static int __init opal_register_exception_handlers(void)
 {
+#ifdef __BIG_ENDIAN__
 	u64 glue;
 
 	if (!(powerpc_firmware_features & FW_FEATURE_OPAL))
@@ -94,6 +95,7 @@ static int __init opal_register_exception_handlers(void)
 					0, glue);
 	glue += 128;
 	opal_register_exception_handler(OPAL_SOFTPATCH_HANDLER, 0, glue);
+#endif
 
 	return 0;
 }
-- 
cgit 


From 6feff6d4a5e1ac8c48d88860bf705be7709b42af Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:05:05 +1000
Subject: powerpc/powernv: More little endian issues in OPAL RTC driver

Sparse caught an issue where opal_set_rtc_time was incorrectly
byteswapping. Also fix a number of sparse warnings.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/opal.h           |  4 ++--
 arch/powerpc/platforms/powernv/opal-rtc.c | 19 ++++++++++---------
 2 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index 6622ea438f0e..3db5e82ee942 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -543,8 +543,8 @@ int64_t opal_console_read(int64_t term_number, __be64 *length,
 			  uint8_t *buffer);
 int64_t opal_console_write_buffer_space(int64_t term_number,
 					__be64 *length);
-int64_t opal_rtc_read(uint32_t *year_month_day,
-		      uint64_t *hour_minute_second_millisecond);
+int64_t opal_rtc_read(__be32 *year_month_day,
+		      __be64 *hour_minute_second_millisecond);
 int64_t opal_rtc_write(uint32_t year_month_day,
 		       uint64_t hour_minute_second_millisecond);
 int64_t opal_cec_power_down(uint64_t request);
diff --git a/arch/powerpc/platforms/powernv/opal-rtc.c b/arch/powerpc/platforms/powernv/opal-rtc.c
index dbfdba35fcf3..7d07c7e80ec0 100644
--- a/arch/powerpc/platforms/powernv/opal-rtc.c
+++ b/arch/powerpc/platforms/powernv/opal-rtc.c
@@ -37,10 +37,12 @@ unsigned long __init opal_get_boot_time(void)
 	struct rtc_time tm;
 	u32 y_m_d;
 	u64 h_m_s_ms;
+	__be32 __y_m_d;
+	__be64 __h_m_s_ms;
 	long rc = OPAL_BUSY;
 
 	while (rc == OPAL_BUSY || rc == OPAL_BUSY_EVENT) {
-		rc = opal_rtc_read(&y_m_d, &h_m_s_ms);
+		rc = opal_rtc_read(&__y_m_d, &__h_m_s_ms);
 		if (rc == OPAL_BUSY_EVENT)
 			opal_poll_events(NULL);
 		else
@@ -48,8 +50,8 @@ unsigned long __init opal_get_boot_time(void)
 	}
 	if (rc != OPAL_SUCCESS)
 		return 0;
-	y_m_d = be32_to_cpu(y_m_d);
-	h_m_s_ms = be64_to_cpu(h_m_s_ms);
+	y_m_d = be32_to_cpu(__y_m_d);
+	h_m_s_ms = be64_to_cpu(__h_m_s_ms);
 	opal_to_tm(y_m_d, h_m_s_ms, &tm);
 	return mktime(tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
 		      tm.tm_hour, tm.tm_min, tm.tm_sec);
@@ -60,9 +62,11 @@ void opal_get_rtc_time(struct rtc_time *tm)
 	long rc = OPAL_BUSY;
 	u32 y_m_d;
 	u64 h_m_s_ms;
+	__be32 __y_m_d;
+	__be64 __h_m_s_ms;
 
 	while (rc == OPAL_BUSY || rc == OPAL_BUSY_EVENT) {
-		rc = opal_rtc_read(&y_m_d, &h_m_s_ms);
+		rc = opal_rtc_read(&__y_m_d, &__h_m_s_ms);
 		if (rc == OPAL_BUSY_EVENT)
 			opal_poll_events(NULL);
 		else
@@ -70,8 +74,8 @@ void opal_get_rtc_time(struct rtc_time *tm)
 	}
 	if (rc != OPAL_SUCCESS)
 		return;
-	y_m_d = be32_to_cpu(y_m_d);
-	h_m_s_ms = be64_to_cpu(h_m_s_ms);
+	y_m_d = be32_to_cpu(__y_m_d);
+	h_m_s_ms = be64_to_cpu(__h_m_s_ms);
 	opal_to_tm(y_m_d, h_m_s_ms, tm);
 }
 
@@ -90,9 +94,6 @@ int opal_set_rtc_time(struct rtc_time *tm)
 	h_m_s_ms |= ((u64)bin2bcd(tm->tm_min)) << 48;
 	h_m_s_ms |= ((u64)bin2bcd(tm->tm_sec)) << 40;
 
-	y_m_d = cpu_to_be32(y_m_d);
-	h_m_s_ms = cpu_to_be64(h_m_s_ms);
-
 	while (rc == OPAL_BUSY || rc == OPAL_BUSY_EVENT) {
 		rc = opal_rtc_write(y_m_d, h_m_s_ms);
 		if (rc == OPAL_BUSY_EVENT)
-- 
cgit 


From 5e4da530a5348e53bbb9f6f7f73c9afc67ed6c35 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:05:06 +1000
Subject: powerpc/powernv: Fix some PCI sparse errors and one LE bug

pnv_pci_setup_bml_iommu was missing a byteswap of a device
tree property.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/opal.h           | 22 +++++++++++-----------
 arch/powerpc/platforms/powernv/opal.c     |  2 +-
 arch/powerpc/platforms/powernv/pci-ioda.c |  6 +++---
 arch/powerpc/platforms/powernv/pci.c      |  6 +++---
 arch/powerpc/platforms/powernv/pci.h      |  2 +-
 5 files changed, 19 insertions(+), 19 deletions(-)

diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index 3db5e82ee942..51e3b265ec12 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -551,7 +551,7 @@ int64_t opal_cec_power_down(uint64_t request);
 int64_t opal_cec_reboot(void);
 int64_t opal_read_nvram(uint64_t buffer, uint64_t size, uint64_t offset);
 int64_t opal_write_nvram(uint64_t buffer, uint64_t size, uint64_t offset);
-int64_t opal_handle_interrupt(uint64_t isn, uint64_t *outstanding_event_mask);
+int64_t opal_handle_interrupt(uint64_t isn, __be64 *outstanding_event_mask);
 int64_t opal_poll_events(__be64 *outstanding_event_mask);
 int64_t opal_pci_set_hub_tce_memory(uint64_t hub_id, uint64_t tce_mem_addr,
 				    uint64_t tce_mem_size);
@@ -560,9 +560,9 @@ int64_t opal_pci_set_phb_tce_memory(uint64_t phb_id, uint64_t tce_mem_addr,
 int64_t opal_pci_config_read_byte(uint64_t phb_id, uint64_t bus_dev_func,
 				  uint64_t offset, uint8_t *data);
 int64_t opal_pci_config_read_half_word(uint64_t phb_id, uint64_t bus_dev_func,
-				       uint64_t offset, uint16_t *data);
+				       uint64_t offset, __be16 *data);
 int64_t opal_pci_config_read_word(uint64_t phb_id, uint64_t bus_dev_func,
-				  uint64_t offset, uint32_t *data);
+				  uint64_t offset, __be32 *data);
 int64_t opal_pci_config_write_byte(uint64_t phb_id, uint64_t bus_dev_func,
 				   uint64_t offset, uint8_t data);
 int64_t opal_pci_config_write_half_word(uint64_t phb_id, uint64_t bus_dev_func,
@@ -570,14 +570,14 @@ int64_t opal_pci_config_write_half_word(uint64_t phb_id, uint64_t bus_dev_func,
 int64_t opal_pci_config_write_word(uint64_t phb_id, uint64_t bus_dev_func,
 				   uint64_t offset, uint32_t data);
 int64_t opal_set_xive(uint32_t isn, uint16_t server, uint8_t priority);
-int64_t opal_get_xive(uint32_t isn, uint16_t *server, uint8_t *priority);
+int64_t opal_get_xive(uint32_t isn, __be16 *server, uint8_t *priority);
 int64_t opal_register_exception_handler(uint64_t opal_exception,
 					uint64_t handler_address,
 					uint64_t glue_cache_line);
 int64_t opal_pci_eeh_freeze_status(uint64_t phb_id, uint64_t pe_number,
 				   uint8_t *freeze_state,
-				   uint16_t *pci_error_type,
-				   uint64_t *phb_status);
+				   __be16 *pci_error_type,
+				   __be64 *phb_status);
 int64_t opal_pci_eeh_freeze_clear(uint64_t phb_id, uint64_t pe_number,
 				  uint64_t eeh_action_token);
 int64_t opal_pci_shpc(uint64_t phb_id, uint64_t shpc_action, uint8_t *state);
@@ -614,13 +614,13 @@ int64_t opal_pci_msi_eoi(uint64_t phb_id, uint32_t hw_irq);
 int64_t opal_pci_set_xive_pe(uint64_t phb_id, uint32_t pe_number,
 			     uint32_t xive_num);
 int64_t opal_get_xive_source(uint64_t phb_id, uint32_t xive_num,
-			     int32_t *interrupt_source_number);
+			     __be32 *interrupt_source_number);
 int64_t opal_get_msi_32(uint64_t phb_id, uint32_t mve_number, uint32_t xive_num,
-			uint8_t msi_range, uint32_t *msi_address,
-			uint32_t *message_data);
+			uint8_t msi_range, __be32 *msi_address,
+			__be32 *message_data);
 int64_t opal_get_msi_64(uint64_t phb_id, uint32_t mve_number,
 			uint32_t xive_num, uint8_t msi_range,
-			uint64_t *msi_address, uint32_t *message_data);
+			__be64 *msi_address, __be32 *message_data);
 int64_t opal_start_cpu(uint64_t thread_number, uint64_t start_address);
 int64_t opal_query_cpu_status(uint64_t thread_number, uint8_t *thread_status);
 int64_t opal_write_oppanel(oppanel_line_t *lines, uint64_t num_lines);
@@ -642,7 +642,7 @@ int64_t opal_pci_fence_phb(uint64_t phb_id);
 int64_t opal_pci_reinit(uint64_t phb_id, uint8_t reinit_scope);
 int64_t opal_pci_mask_pe_error(uint64_t phb_id, uint16_t pe_number, uint8_t error_type, uint8_t mask_action);
 int64_t opal_set_slot_led_status(uint64_t phb_id, uint64_t slot_id, uint8_t led_type, uint8_t led_action);
-int64_t opal_get_epow_status(uint64_t *status);
+int64_t opal_get_epow_status(__be64 *status);
 int64_t opal_set_system_attention_led(uint8_t led_action);
 int64_t opal_pci_next_error(uint64_t phb_id, uint64_t *first_frozen_pe,
 			    uint16_t *pci_error_type, uint16_t *severity);
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index c2391bbdab12..09336f0c54c5 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -366,7 +366,7 @@ int opal_machine_check(struct pt_regs *regs)
 
 static irqreturn_t opal_interrupt(int irq, void *data)
 {
-	uint64_t events;
+	__be64 events;
 
 	opal_handle_interrupt(virq_to_hw(irq), &events);
 
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index f9cb6c53a0ca..a6531d2ff6c2 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -455,7 +455,7 @@ static void pnv_ioda_setup_bus_dma(struct pnv_ioda_pe *pe, struct pci_bus *bus)
 }
 
 static void pnv_pci_ioda1_tce_invalidate(struct iommu_table *tbl,
-					 u64 *startp, u64 *endp)
+					 __be64 *startp, __be64 *endp)
 {
 	__be64 __iomem *invalidate = (__be64 __iomem *)tbl->it_index;
 	unsigned long start, end, inc;
@@ -496,7 +496,7 @@ static void pnv_pci_ioda1_tce_invalidate(struct iommu_table *tbl,
 
 static void pnv_pci_ioda2_tce_invalidate(struct pnv_ioda_pe *pe,
 					 struct iommu_table *tbl,
-					 u64 *startp, u64 *endp)
+					 __be64 *startp, __be64 *endp)
 {
 	unsigned long start, end, inc;
 	__be64 __iomem *invalidate = (__be64 __iomem *)tbl->it_index;
@@ -521,7 +521,7 @@ static void pnv_pci_ioda2_tce_invalidate(struct pnv_ioda_pe *pe,
 }
 
 void pnv_pci_ioda_tce_invalidate(struct iommu_table *tbl,
-				 u64 *startp, u64 *endp)
+				 __be64 *startp, __be64 *endp)
 {
 	struct pnv_ioda_pe *pe = container_of(tbl, struct pnv_ioda_pe,
 					      tce32_table);
diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index 2f73e0da2603..a26956c5f38c 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -412,7 +412,7 @@ static int pnv_tce_build(struct iommu_table *tbl, long index, long npages,
 	if (direction != DMA_TO_DEVICE)
 		proto_tce |= TCE_PCI_WRITE;
 
-	tces = tcep = ((u64 *)tbl->it_base) + index - tbl->it_offset;
+	tces = tcep = ((__be64 *)tbl->it_base) + index - tbl->it_offset;
 	rpn = __pa(uaddr) >> TCE_SHIFT;
 
 	while (npages--)
@@ -432,7 +432,7 @@ static void pnv_tce_free(struct iommu_table *tbl, long index, long npages)
 {
 	__be64 *tcep, *tces;
 
-	tces = tcep = ((u64 *)tbl->it_base) + index - tbl->it_offset;
+	tces = tcep = ((__be64 *)tbl->it_base) + index - tbl->it_offset;
 
 	while (npages--)
 		*(tcep++) = cpu_to_be64(0);
@@ -484,7 +484,7 @@ static struct iommu_table *pnv_pci_setup_bml_iommu(struct pci_controller *hose)
 	swinvp = of_get_property(hose->dn, "linux,tce-sw-invalidate-info",
 				 NULL);
 	if (swinvp) {
-		tbl->it_busno = swinvp[1];
+		tbl->it_busno = be64_to_cpu(swinvp[1]);
 		tbl->it_index = (unsigned long)ioremap(be64_to_cpup(swinvp), 8);
 		tbl->it_type = TCE_PCI_SWINV_CREATE | TCE_PCI_SWINV_FREE;
 	}
diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h
index d633c64e05a1..dfe20104238e 100644
--- a/arch/powerpc/platforms/powernv/pci.h
+++ b/arch/powerpc/platforms/powernv/pci.h
@@ -193,6 +193,6 @@ extern void pnv_pci_init_p5ioc2_hub(struct device_node *np);
 extern void pnv_pci_init_ioda_hub(struct device_node *np);
 extern void pnv_pci_init_ioda2_phb(struct device_node *np);
 extern void pnv_pci_ioda_tce_invalidate(struct iommu_table *tbl,
-					u64 *startp, u64 *endp);
+					__be64 *startp, __be64 *endp);
 
 #endif /* __POWERNV_PCI_H */
-- 
cgit 


From 99fc1d91b8fc30c969b0a2d152c803413ecb8cef Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Mon, 23 Sep 2013 12:05:07 +1000
Subject: powerpc/hvsi: Fix endian issues in HVSI driver

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/hvsi.h | 16 ++++++++--------
 drivers/tty/hvc/hvsi_lib.c      | 25 ++++++++++++-------------
 2 files changed, 20 insertions(+), 21 deletions(-)

diff --git a/arch/powerpc/include/asm/hvsi.h b/arch/powerpc/include/asm/hvsi.h
index d3f64f361814..d4a5315718ca 100644
--- a/arch/powerpc/include/asm/hvsi.h
+++ b/arch/powerpc/include/asm/hvsi.h
@@ -25,7 +25,7 @@
 struct hvsi_header {
 	uint8_t  type;
 	uint8_t  len;
-	uint16_t seqno;
+	__be16 seqno;
 } __attribute__((packed));
 
 struct hvsi_data {
@@ -35,24 +35,24 @@ struct hvsi_data {
 
 struct hvsi_control {
 	struct hvsi_header hdr;
-	uint16_t verb;
+	__be16 verb;
 	/* optional depending on verb: */
-	uint32_t word;
-	uint32_t mask;
+	__be32 word;
+	__be32 mask;
 } __attribute__((packed));
 
 struct hvsi_query {
 	struct hvsi_header hdr;
-	uint16_t verb;
+	__be16 verb;
 } __attribute__((packed));
 
 struct hvsi_query_response {
 	struct hvsi_header hdr;
-	uint16_t verb;
-	uint16_t query_seqno;
+	__be16 verb;
+	__be16 query_seqno;
 	union {
 		uint8_t  version;
-		uint32_t mctrl_word;
+		__be32 mctrl_word;
 	} u;
 } __attribute__((packed));
 
diff --git a/drivers/tty/hvc/hvsi_lib.c b/drivers/tty/hvc/hvsi_lib.c
index ac2767100df5..347050ea414a 100644
--- a/drivers/tty/hvc/hvsi_lib.c
+++ b/drivers/tty/hvc/hvsi_lib.c
@@ -9,7 +9,7 @@
 
 static int hvsi_send_packet(struct hvsi_priv *pv, struct hvsi_header *packet)
 {
-	packet->seqno = atomic_inc_return(&pv->seqno);
+	packet->seqno = cpu_to_be16(atomic_inc_return(&pv->seqno));
 
 	/* Assumes that always succeeds, works in practice */
 	return pv->put_chars(pv->termno, (char *)packet, packet->len);
@@ -28,7 +28,7 @@ static void hvsi_start_handshake(struct hvsi_priv *pv)
 	/* Send version query */
 	q.hdr.type = VS_QUERY_PACKET_HEADER;
 	q.hdr.len = sizeof(struct hvsi_query);
-	q.verb = VSV_SEND_VERSION_NUMBER;
+	q.verb = cpu_to_be16(VSV_SEND_VERSION_NUMBER);
 	hvsi_send_packet(pv, &q.hdr);
 }
 
@@ -40,7 +40,7 @@ static int hvsi_send_close(struct hvsi_priv *pv)
 
 	ctrl.hdr.type = VS_CONTROL_PACKET_HEADER;
 	ctrl.hdr.len = sizeof(struct hvsi_control);
-	ctrl.verb = VSV_CLOSE_PROTOCOL;
+	ctrl.verb = cpu_to_be16(VSV_CLOSE_PROTOCOL);
 	return hvsi_send_packet(pv, &ctrl.hdr);
 }
 
@@ -69,14 +69,14 @@ static void hvsi_got_control(struct hvsi_priv *pv)
 {
 	struct hvsi_control *pkt = (struct hvsi_control *)pv->inbuf;
 
-	switch (pkt->verb) {
+	switch (be16_to_cpu(pkt->verb)) {
 	case VSV_CLOSE_PROTOCOL:
 		/* We restart the handshaking */
 		hvsi_start_handshake(pv);
 		break;
 	case VSV_MODEM_CTL_UPDATE:
 		/* Transition of carrier detect */
-		hvsi_cd_change(pv, pkt->word & HVSI_TSCD);
+		hvsi_cd_change(pv, be32_to_cpu(pkt->word) & HVSI_TSCD);
 		break;
 	}
 }
@@ -87,7 +87,7 @@ static void hvsi_got_query(struct hvsi_priv *pv)
 	struct hvsi_query_response r;
 
 	/* We only handle version queries */
-	if (pkt->verb != VSV_SEND_VERSION_NUMBER)
+	if (be16_to_cpu(pkt->verb) != VSV_SEND_VERSION_NUMBER)
 		return;
 
 	pr_devel("HVSI@%x: Got version query, sending response...\n",
@@ -96,7 +96,7 @@ static void hvsi_got_query(struct hvsi_priv *pv)
 	/* Send version response */
 	r.hdr.type = VS_QUERY_RESPONSE_PACKET_HEADER;
 	r.hdr.len = sizeof(struct hvsi_query_response);
-	r.verb = VSV_SEND_VERSION_NUMBER;
+	r.verb = cpu_to_be16(VSV_SEND_VERSION_NUMBER);
 	r.u.version = HVSI_VERSION;
 	r.query_seqno = pkt->hdr.seqno;
 	hvsi_send_packet(pv, &r.hdr);
@@ -112,7 +112,7 @@ static void hvsi_got_response(struct hvsi_priv *pv)
 
 	switch(r->verb) {
 	case VSV_SEND_MODEM_CTL_STATUS:
-		hvsi_cd_change(pv, r->u.mctrl_word & HVSI_TSCD);
+		hvsi_cd_change(pv, be32_to_cpu(r->u.mctrl_word) & HVSI_TSCD);
 		pv->mctrl_update = 1;
 		break;
 	}
@@ -265,8 +265,7 @@ int hvsilib_read_mctrl(struct hvsi_priv *pv)
 	pv->mctrl_update = 0;
 	q.hdr.type = VS_QUERY_PACKET_HEADER;
 	q.hdr.len = sizeof(struct hvsi_query);
-	q.hdr.seqno = atomic_inc_return(&pv->seqno);
-	q.verb = VSV_SEND_MODEM_CTL_STATUS;
+	q.verb = cpu_to_be16(VSV_SEND_MODEM_CTL_STATUS);
 	rc = hvsi_send_packet(pv, &q.hdr);
 	if (rc <= 0) {
 		pr_devel("HVSI@%x: Error %d...\n", pv->termno, rc);
@@ -304,9 +303,9 @@ int hvsilib_write_mctrl(struct hvsi_priv *pv, int dtr)
 
 	ctrl.hdr.type = VS_CONTROL_PACKET_HEADER,
 	ctrl.hdr.len = sizeof(struct hvsi_control);
-	ctrl.verb = VSV_SET_MODEM_CTL;
-	ctrl.mask = HVSI_TSDTR;
-	ctrl.word = dtr ? HVSI_TSDTR : 0;
+	ctrl.verb = cpu_to_be16(VSV_SET_MODEM_CTL);
+	ctrl.mask = cpu_to_be32(HVSI_TSDTR);
+	ctrl.word = cpu_to_be32(dtr ? HVSI_TSDTR : 0);
 	return hvsi_send_packet(pv, &ctrl.hdr);
 }
 
-- 
cgit 


From 5c94913c5f9834b0d35e20359db457783962bed5 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Mon, 23 Sep 2013 12:05:08 +1000
Subject: tty/hvc_opal: powerpc: Make OPAL HVC device tree accesses endian safe

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 drivers/tty/hvc/hvc_opal.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/hvc/hvc_opal.c b/drivers/tty/hvc/hvc_opal.c
index cd69b48f6dfd..6496872e2e47 100644
--- a/drivers/tty/hvc/hvc_opal.c
+++ b/drivers/tty/hvc/hvc_opal.c
@@ -329,7 +329,7 @@ static void udbg_init_opal_common(void)
 void __init hvc_opal_init_early(void)
 {
 	struct device_node *stdout_node = NULL;
-	const u32 *termno;
+	const __be32 *termno;
 	const char *name = NULL;
 	const struct hv_ops *ops;
 	u32 index;
@@ -371,7 +371,7 @@ void __init hvc_opal_init_early(void)
 	if (!stdout_node)
 		return;
 	termno = of_get_property(stdout_node, "reg", NULL);
-	index = termno ? *termno : 0;
+	index = termno ? be32_to_cpup(termno) : 0;
 	if (index >= MAX_NR_HVC_CONSOLES)
 		return;
 	hvc_opal_privs[index] = &hvc_opal_boot_priv;
-- 
cgit 


From 7df697c81587114ad4847598dd2d6061b73f1a12 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:05:09 +1000
Subject: KVM: PPC: Disable KVM on little endian builds

There are a number of KVM issues with little endian builds.
We are working on fixing them, but in the meantime disable
it.

Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: Alexander Graf <agraf@suse.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kvm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig
index ffaef2cb101a..e593ff257bd3 100644
--- a/arch/powerpc/kvm/Kconfig
+++ b/arch/powerpc/kvm/Kconfig
@@ -6,6 +6,7 @@ source "virt/kvm/Kconfig"
 
 menuconfig VIRTUALIZATION
 	bool "Virtualization"
+	depends on !CPU_LITTLE_ENDIAN
 	---help---
 	  Say Y here to get to see options for using your Linux host to run
 	  other operating systems inside virtual machines (guests).
-- 
cgit 


From d72b08017161ab385d4ae080ea415c9eb7ceef83 Mon Sep 17 00:00:00 2001
From: Ian Munsie <imunsie@au1.ibm.com>
Date: Mon, 23 Sep 2013 12:05:11 +1000
Subject: powerpc: Add ability to build little endian kernels

This patch allows the kbuild system to successfully compile a kernel
for the little endian PowerPC64 architecture. A subsequent patch
will add the CONFIG_CPU_LITTLE_ENDIAN kernel config option which
must be set to build such a kernel.

If cross compiling, CROSS_COMPILE must point to a suitable toolchain
(compiled for the powerpc64le-linux and powerpcle-linux targets).

Signed-off-by: Ian Munsie <imunsie@au1.ibm.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/Makefile                   | 24 +++++++++++++++++++++---
 arch/powerpc/boot/Makefile              |  3 ++-
 arch/powerpc/kernel/vdso32/vdso32.lds.S |  4 ++++
 arch/powerpc/kernel/vdso64/vdso64.lds.S |  4 ++++
 4 files changed, 31 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index debfa2b1c1de..d3c91bf923b7 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -65,11 +65,29 @@ endif
 
 UTS_MACHINE := $(OLDARCH)
 
+ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
+override CC	+= -mlittle-endian
+override AS	+= -mlittle-endian
+override LD	+= -EL
+override CROSS32CC += -mlittle-endian
+override CROSS32AS += -mlittle-endian
+LDEMULATION	:= lppc
+GNUTARGET	:= powerpcle
+MULTIPLEWORD	:= -mno-multiple
+else
+override CC	+= -mbig-endian
+override AS	+= -mbig-endian
+override LD	+= -EB
+LDEMULATION	:= ppc
+GNUTARGET	:= powerpc
+MULTIPLEWORD	:= -mmultiple
+endif
+
 ifeq ($(HAS_BIARCH),y)
 override AS	+= -a$(CONFIG_WORD_SIZE)
-override LD	+= -m elf$(CONFIG_WORD_SIZE)ppc
+override LD	+= -m elf$(CONFIG_WORD_SIZE)$(LDEMULATION)
 override CC	+= -m$(CONFIG_WORD_SIZE)
-override AR	:= GNUTARGET=elf$(CONFIG_WORD_SIZE)-powerpc $(AR)
+override AR	:= GNUTARGET=elf$(CONFIG_WORD_SIZE)-$(GNUTARGET) $(AR)
 endif
 
 LDFLAGS_vmlinux-y := -Bstatic
@@ -95,7 +113,7 @@ endif
 CFLAGS-$(CONFIG_PPC64)	:= -mtraceback=no -mcall-aixdesc
 CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mcmodel=medium,-mminimal-toc)
 CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mno-pointers-to-nested-functions)
-CFLAGS-$(CONFIG_PPC32)	:= -ffixed-r2 -mmultiple
+CFLAGS-$(CONFIG_PPC32)	:= -ffixed-r2 $(MULTIPLEWORD)
 
 ifeq ($(CONFIG_PPC_BOOK3S_64),y)
 CFLAGS-$(CONFIG_GENERIC_CPU) += $(call cc-option,-mtune=power7,-mtune=power4)
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 15ca2255f438..ca7f08cc4afd 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -22,7 +22,8 @@ all: $(obj)/zImage
 BOOTCFLAGS    := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
 		 -fno-strict-aliasing -Os -msoft-float -pipe \
 		 -fomit-frame-pointer -fno-builtin -fPIC -nostdinc \
-		 -isystem $(shell $(CROSS32CC) -print-file-name=include)
+		 -isystem $(shell $(CROSS32CC) -print-file-name=include) \
+		 -mbig-endian
 BOOTAFLAGS	:= -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc
 
 ifdef CONFIG_DEBUG_INFO
diff --git a/arch/powerpc/kernel/vdso32/vdso32.lds.S b/arch/powerpc/kernel/vdso32/vdso32.lds.S
index f223409629b9..e58ee10fa5c0 100644
--- a/arch/powerpc/kernel/vdso32/vdso32.lds.S
+++ b/arch/powerpc/kernel/vdso32/vdso32.lds.S
@@ -4,7 +4,11 @@
  */
 #include <asm/vdso.h>
 
+#ifdef __LITTLE_ENDIAN__
+OUTPUT_FORMAT("elf32-powerpcle", "elf32-powerpcle", "elf32-powerpcle")
+#else
 OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", "elf32-powerpc")
+#endif
 OUTPUT_ARCH(powerpc:common)
 ENTRY(_start)
 
diff --git a/arch/powerpc/kernel/vdso64/vdso64.lds.S b/arch/powerpc/kernel/vdso64/vdso64.lds.S
index e4863819663b..64fb183a47c2 100644
--- a/arch/powerpc/kernel/vdso64/vdso64.lds.S
+++ b/arch/powerpc/kernel/vdso64/vdso64.lds.S
@@ -4,7 +4,11 @@
  */
 #include <asm/vdso.h>
 
+#ifdef __LITTLE_ENDIAN__
+OUTPUT_FORMAT("elf64-powerpcle", "elf64-powerpcle", "elf64-powerpcle")
+#else
 OUTPUT_FORMAT("elf64-powerpc", "elf64-powerpc", "elf64-powerpc")
+#endif
 OUTPUT_ARCH(powerpc:common64)
 ENTRY(_start)
 
-- 
cgit 


From 0b5e6661ac69983a54d9832ac33fd27d733306f8 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:05:12 +1000
Subject: powerpc: Don't set HAVE_EFFICIENT_UNALIGNED_ACCESS on little endian
 builds

POWER7 takes alignment exceptions on some unaligned addresses, so
disable HAVE_EFFICIENT_UNALIGNED_ACCESS. This fixes an early boot
issue in the printk code.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 2c69c43ba68e..c5a868bc7aa4 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -97,7 +97,7 @@ config PPC
 	select VIRT_TO_BUS if !PPC64
 	select HAVE_IDE
 	select HAVE_IOREMAP_PROT
-	select HAVE_EFFICIENT_UNALIGNED_ACCESS
+	select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_LITTLE_ENDIAN
 	select HAVE_KPROBES
 	select HAVE_ARCH_KGDB
 	select HAVE_KRETPROBES
-- 
cgit 


From f036b368196263f648bede42bbbe1c1e6e834d10 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 23 Sep 2013 12:05:13 +1000
Subject: powerpc: Work around little endian gcc bug

Temporarily work around an ICE we are seeing while building
in little endian mode:

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57134

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index d3c91bf923b7..607acf54a425 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -66,7 +66,7 @@ endif
 UTS_MACHINE := $(OLDARCH)
 
 ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
-override CC	+= -mlittle-endian
+override CC	+= -mlittle-endian -mno-strict-align
 override AS	+= -mlittle-endian
 override LD	+= -EL
 override CROSS32CC += -mlittle-endian
-- 
cgit 


From 32dda05f4ec2b854b594bd91590c46c5197d77e1 Mon Sep 17 00:00:00 2001
From: Scott Wood <scottwood@freescale.com>
Date: Thu, 26 Sep 2013 19:18:18 -0500
Subject: powerpc/mpic: Disable preemption when calling mpic_processor_id()

Otherwise, we get a debug traceback due to the use of
smp_processor_id() (or get_paca()) inside hard_smp_processor_id().
mpic_host_map() is just looking for a default CPU, so it doesn't matter
if we migrate after getting the CPU ID.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/sysdev/mpic.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 1be54faf60dd..bdcb8588e492 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -1088,8 +1088,14 @@ static int mpic_host_map(struct irq_domain *h, unsigned int virq,
 	 * is done here.
 	 */
 	if (!mpic_is_ipi(mpic, hw) && (mpic->flags & MPIC_NO_RESET)) {
+		int cpu;
+
+		preempt_disable();
+		cpu = mpic_processor_id(mpic);
+		preempt_enable();
+
 		mpic_set_vector(virq, hw);
-		mpic_set_destination(virq, mpic_processor_id(mpic));
+		mpic_set_destination(virq, cpu);
 		mpic_irq_set_priority(virq, 8);
 	}
 
-- 
cgit 


From dc1473dcfaf4fb38ba2dcb2fb7ac7d0242185fa3 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Mon, 30 Sep 2013 15:11:42 +0200
Subject: powerpc/legacy_serial: Fix incorrect placement of __initdata tag

__initdata tag should be placed between the variable name and equal
sign for the variable to be placed in the intended .init.data section.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/legacy_serial.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index 22e88dd2f34a..40bd7bd4e19a 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -35,7 +35,7 @@ static struct legacy_serial_info {
 	phys_addr_t			taddr;
 } legacy_serial_infos[MAX_LEGACY_SERIAL_PORTS];
 
-static struct __initdata of_device_id legacy_serial_parents[] = {
+static struct of_device_id legacy_serial_parents[] __initdata = {
 	{.type = "soc",},
 	{.type = "tsi-bridge",},
 	{.type = "opb", },
-- 
cgit 


From 1443d6a2a740b0b0dd644dba0fb96863eea238eb Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Mon, 30 Sep 2013 15:13:55 +0200
Subject: powerpc/8xx/tqm8xx: Fix incorrect placement of __initdata tag

__initdata tag should be placed between the variable name and equal
sign for the variable to be placed in the intended .init.data section.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/8xx/tqm8xx_setup.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/8xx/tqm8xx_setup.c b/arch/powerpc/platforms/8xx/tqm8xx_setup.c
index 8d21ab70e06c..ef0778a0ca8f 100644
--- a/arch/powerpc/platforms/8xx/tqm8xx_setup.c
+++ b/arch/powerpc/platforms/8xx/tqm8xx_setup.c
@@ -48,7 +48,7 @@ struct cpm_pin {
 	int port, pin, flags;
 };
 
-static struct __initdata cpm_pin tqm8xx_pins[] = {
+static struct cpm_pin tqm8xx_pins[] __initdata = {
 	/* SMC1 */
 	{CPM_PORTB, 24, CPM_PIN_INPUT}, /* RX */
 	{CPM_PORTB, 25, CPM_PIN_INPUT | CPM_PIN_SECONDARY}, /* TX */
@@ -63,7 +63,7 @@ static struct __initdata cpm_pin tqm8xx_pins[] = {
 	{CPM_PORTC, 11, CPM_PIN_INPUT | CPM_PIN_SECONDARY | CPM_PIN_GPIO},
 };
 
-static struct __initdata cpm_pin tqm8xx_fec_pins[] = {
+static struct cpm_pin tqm8xx_fec_pins[] __initdata = {
 	/* MII */
 	{CPM_PORTD, 3, CPM_PIN_OUTPUT},
 	{CPM_PORTD, 4, CPM_PIN_OUTPUT},
-- 
cgit 


From 0edfdd10f57bd989f7c2bc31ce6f601bbee1b664 Mon Sep 17 00:00:00 2001
From: Kevin Hao <haokexin@gmail.com>
Date: Thu, 26 Sep 2013 16:41:34 +0800
Subject: powerpc/ppc64: Remove the unneeded load of ti_flags in resume_kernel

We already got the value of current_thread_info and ti_flags and store
them into r9 and r4 respectively before jumping to resume_kernel. So
there is no reason to reload them again.

Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/entry_64.S | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 889ea2b19383..12679cd43e0c 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -673,9 +673,7 @@ _GLOBAL(ret_from_except_lite)
 
 resume_kernel:
 	/* check current_thread_info, _TIF_EMULATE_STACK_STORE */
-	CURRENT_THREAD_INFO(r9, r1)
-	ld	r8,TI_FLAGS(r9)
-	andis.	r8,r8,_TIF_EMULATE_STACK_STORE@h
+	andis.	r8,r4,_TIF_EMULATE_STACK_STORE@h
 	beq+	1f
 
 	addi	r8,r1,INT_FRAME_SIZE	/* Get the kprobed function entry */
-- 
cgit 


From 8616dff5b0e969444cc8484875ebd936956b5c0d Mon Sep 17 00:00:00 2001
From: Vladimir Murzin <murzin.v@gmail.com>
Date: Sun, 29 Sep 2013 14:41:18 +0200
Subject: powerpc: Fix section mismatch warning in free_lppacas

While cross-building for PPC64 I've got bunch of

WARNING: arch/powerpc/kernel/built-in.o(.text.unlikely+0x2d2): Section
mismatch in reference from the function .free_lppacas() to the variable
.init.data:lppaca_size The function .free_lppacas() references the variable
__initdata lppaca_size. This is often because .free_lppacas lacks a __initdata
annotation or the annotation of lppaca_size is wrong.

Fix it by using proper annotation for free_lppacas. Additionally, annotate
{allocate,new}_llpcas properly.

Signed-off-by: Vladimir Murzin <murzin.v@gmail.com>
Acked-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/paca.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index 3fc16e3beb9f..0620eaaaad45 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -46,7 +46,7 @@ struct lppaca lppaca[] = {
 static struct lppaca *extra_lppacas;
 static long __initdata lppaca_size;
 
-static void allocate_lppacas(int nr_cpus, unsigned long limit)
+static void __init allocate_lppacas(int nr_cpus, unsigned long limit)
 {
 	if (nr_cpus <= NR_LPPACAS)
 		return;
@@ -57,7 +57,7 @@ static void allocate_lppacas(int nr_cpus, unsigned long limit)
 						 PAGE_SIZE, limit));
 }
 
-static struct lppaca *new_lppaca(int cpu)
+static struct lppaca * __init new_lppaca(int cpu)
 {
 	struct lppaca *lp;
 
@@ -70,7 +70,7 @@ static struct lppaca *new_lppaca(int cpu)
 	return lp;
 }
 
-static void free_lppacas(void)
+static void __init free_lppacas(void)
 {
 	long new_size = 0, nr;
 
-- 
cgit 


From 41b93b238ab394c8cf0935ec3ba31c700a2b3b25 Mon Sep 17 00:00:00 2001
From: Bharat Bhushan <r65777@freescale.com>
Date: Wed, 9 Oct 2013 10:41:17 +0530
Subject: powerpc: Added __cmpdi2 for signed 64bit comparision

This was missing on powerpc and I am getting compilation error
drivers/vfio/pci/vfio_pci_rdwr.c:193: undefined reference to `__cmpdi2'
drivers/vfio/pci/vfio_pci_rdwr.c:193: undefined reference to `__cmpdi2'

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/misc_32.S   | 14 ++++++++++++++
 arch/powerpc/kernel/ppc_ksyms.c |  2 ++
 2 files changed, 16 insertions(+)

diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 2b0ad9845363..e47d268727a4 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -658,6 +658,20 @@ _GLOBAL(__lshrdi3)
 	or	r4,r4,r7	# LSW |= t2
 	blr
 
+/*
+ * 64-bit comparison: __cmpdi2(s64 a, s64 b)
+ * Returns 0 if a < b, 1 if a == b, 2 if a > b.
+ */
+_GLOBAL(__cmpdi2)
+	cmpw	r3,r5
+	li	r3,1
+	bne	1f
+	cmplw	r4,r6
+	beqlr
+1:	li	r3,0
+	bltlr
+	li	r3,2
+	blr
 /*
  * 64-bit comparison: __ucmpdi2(u64 a, u64 b)
  * Returns 0 if a < b, 1 if a == b, 2 if a > b.
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index 60bbeb29f9b8..d8c34073b42a 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -145,6 +145,8 @@ EXPORT_SYMBOL(__ashldi3);
 EXPORT_SYMBOL(__lshrdi3);
 int __ucmpdi2(unsigned long long, unsigned long long);
 EXPORT_SYMBOL(__ucmpdi2);
+int __cmpdi2(long long, long long);
+EXPORT_SYMBOL(__cmpdi2);
 #endif
 long long __bswapdi2(long long);
 EXPORT_SYMBOL(__bswapdi2);
-- 
cgit 


From f95dabef4c70e27e5114f4802fe6234ff82ce406 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <michael@ellerman.id.au>
Date: Wed, 25 Sep 2013 19:24:17 +1000
Subject: hwrng: Return errors to upper levels in pseries-rng.c

We don't expect to get errors from the hypervisor when reading the rng,
but if we do we should pass the error up to the hwrng driver. Otherwise
the hwrng driver will continue calling us forever.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 drivers/char/hw_random/pseries-rng.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/char/hw_random/pseries-rng.c b/drivers/char/hw_random/pseries-rng.c
index 5f1197929f0c..b761459a3436 100644
--- a/drivers/char/hw_random/pseries-rng.c
+++ b/drivers/char/hw_random/pseries-rng.c
@@ -17,6 +17,9 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/hw_random.h>
 #include <asm/vio.h>
@@ -25,10 +28,15 @@
 
 static int pseries_rng_data_read(struct hwrng *rng, u32 *data)
 {
-	if (plpar_hcall(H_RANDOM, (unsigned long *)data) != H_SUCCESS) {
-		printk(KERN_ERR "pseries rng hcall error\n");
-		return 0;
+	int rc;
+
+	rc = plpar_hcall(H_RANDOM, (unsigned long *)data);
+	if (rc != H_SUCCESS) {
+		pr_err_ratelimited("H_RANDOM call failed %d\n", rc);
+		return -EIO;
 	}
+
+	/* The hypervisor interface returns 64 bits */
 	return 8;
 }
 
-- 
cgit 


From a4da0d50b2a00b79390092e6248ca88b7d93c81d Mon Sep 17 00:00:00 2001
From: Michael Ellerman <michael@ellerman.id.au>
Date: Fri, 11 Oct 2013 14:07:57 +1100
Subject: powerpc: Implement arch_get_random_long/int() for powernv

Add the plumbing to implement arch_get_random_long/int(). It didn't seem
worth adding an extra ppc_md hook for int, so we reuse the one for long.

Add an implementation for powernv based on the hwrng found in power7+
systems. We whiten the output of the hwrng, and the result passes all
the dieharder tests.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/Kconfig                    |   3 +
 arch/powerpc/include/asm/archrandom.h   |  32 +++++++++
 arch/powerpc/include/asm/machdep.h      |   4 ++
 arch/powerpc/platforms/powernv/Kconfig  |   1 +
 arch/powerpc/platforms/powernv/Makefile |   2 +-
 arch/powerpc/platforms/powernv/rng.c    | 122 ++++++++++++++++++++++++++++++++
 6 files changed, 163 insertions(+), 1 deletion(-)
 create mode 100644 arch/powerpc/include/asm/archrandom.h
 create mode 100644 arch/powerpc/platforms/powernv/rng.c

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index c5a868bc7aa4..875d815a8e7f 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -1012,6 +1012,9 @@ config PHYSICAL_START
 	default "0x00000000"
 endif
 
+config	ARCH_RANDOM
+	def_bool n
+
 source "net/Kconfig"
 
 source "drivers/Kconfig"
diff --git a/arch/powerpc/include/asm/archrandom.h b/arch/powerpc/include/asm/archrandom.h
new file mode 100644
index 000000000000..d853d163ba47
--- /dev/null
+++ b/arch/powerpc/include/asm/archrandom.h
@@ -0,0 +1,32 @@
+#ifndef _ASM_POWERPC_ARCHRANDOM_H
+#define _ASM_POWERPC_ARCHRANDOM_H
+
+#ifdef CONFIG_ARCH_RANDOM
+
+#include <asm/machdep.h>
+
+static inline int arch_get_random_long(unsigned long *v)
+{
+	if (ppc_md.get_random_long)
+		return ppc_md.get_random_long(v);
+
+	return 0;
+}
+
+static inline int arch_get_random_int(unsigned int *v)
+{
+	unsigned long val;
+	int rc;
+
+	rc = arch_get_random_long(&val);
+	if (rc)
+		*v = val;
+
+	return rc;
+}
+
+int powernv_get_random_long(unsigned long *v);
+
+#endif /* CONFIG_ARCH_RANDOM */
+
+#endif /* _ASM_POWERPC_ARCHRANDOM_H */
diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h
index 8b480901165a..ce6cc2a7b8b9 100644
--- a/arch/powerpc/include/asm/machdep.h
+++ b/arch/powerpc/include/asm/machdep.h
@@ -263,6 +263,10 @@ struct machdep_calls {
 	ssize_t (*cpu_probe)(const char *, size_t);
 	ssize_t (*cpu_release)(const char *, size_t);
 #endif
+
+#ifdef CONFIG_ARCH_RANDOM
+	int (*get_random_long)(unsigned long *v);
+#endif
 };
 
 extern void e500_idle(void);
diff --git a/arch/powerpc/platforms/powernv/Kconfig b/arch/powerpc/platforms/powernv/Kconfig
index 6fae5eb99ea6..21084645c70a 100644
--- a/arch/powerpc/platforms/powernv/Kconfig
+++ b/arch/powerpc/platforms/powernv/Kconfig
@@ -9,6 +9,7 @@ config PPC_POWERNV
 	select EPAPR_BOOT
 	select PPC_INDIRECT_PIO
 	select PPC_UDBG_16550
+	select ARCH_RANDOM
 	default y
 
 config POWERNV_MSI
diff --git a/arch/powerpc/platforms/powernv/Makefile b/arch/powerpc/platforms/powernv/Makefile
index 300c437d713c..6760a86d5bd0 100644
--- a/arch/powerpc/platforms/powernv/Makefile
+++ b/arch/powerpc/platforms/powernv/Makefile
@@ -1,5 +1,5 @@
 obj-y			+= setup.o opal-takeover.o opal-wrappers.o opal.o
-obj-y			+= opal-rtc.o opal-nvram.o opal-lpc.o
+obj-y			+= opal-rtc.o opal-nvram.o opal-lpc.o rng.o
 
 obj-$(CONFIG_SMP)	+= smp.o
 obj-$(CONFIG_PCI)	+= pci.o pci-p5ioc2.o pci-ioda.o
diff --git a/arch/powerpc/platforms/powernv/rng.c b/arch/powerpc/platforms/powernv/rng.c
new file mode 100644
index 000000000000..02db7d73cf8b
--- /dev/null
+++ b/arch/powerpc/platforms/powernv/rng.c
@@ -0,0 +1,122 @@
+/*
+ * Copyright 2013, Michael Ellerman, IBM Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#define pr_fmt(fmt)	"powernv-rng: " fmt
+
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/slab.h>
+#include <asm/archrandom.h>
+#include <asm/io.h>
+#include <asm/machdep.h>
+
+
+struct powernv_rng {
+	void __iomem *regs;
+	unsigned long mask;
+};
+
+static DEFINE_PER_CPU(struct powernv_rng *, powernv_rng);
+
+
+static unsigned long rng_whiten(struct powernv_rng *rng, unsigned long val)
+{
+	unsigned long parity;
+
+	/* Calculate the parity of the value */
+	asm ("popcntd %0,%1" : "=r" (parity) : "r" (val));
+
+	/* xor our value with the previous mask */
+	val ^= rng->mask;
+
+	/* update the mask based on the parity of this value */
+	rng->mask = (rng->mask << 1) | (parity & 1);
+
+	return val;
+}
+
+int powernv_get_random_long(unsigned long *v)
+{
+	struct powernv_rng *rng;
+
+	rng = get_cpu_var(powernv_rng);
+
+	*v = rng_whiten(rng, in_be64(rng->regs));
+
+	put_cpu_var(rng);
+
+	return 1;
+}
+EXPORT_SYMBOL_GPL(powernv_get_random_long);
+
+static __init void rng_init_per_cpu(struct powernv_rng *rng,
+				    struct device_node *dn)
+{
+	int chip_id, cpu;
+
+	chip_id = of_get_ibm_chip_id(dn);
+	if (chip_id == -1)
+		pr_warn("No ibm,chip-id found for %s.\n", dn->full_name);
+
+	for_each_possible_cpu(cpu) {
+		if (per_cpu(powernv_rng, cpu) == NULL ||
+		    cpu_to_chip_id(cpu) == chip_id) {
+			per_cpu(powernv_rng, cpu) = rng;
+		}
+	}
+}
+
+static __init int rng_create(struct device_node *dn)
+{
+	struct powernv_rng *rng;
+	unsigned long val;
+
+	rng = kzalloc(sizeof(*rng), GFP_KERNEL);
+	if (!rng)
+		return -ENOMEM;
+
+	rng->regs = of_iomap(dn, 0);
+	if (!rng->regs) {
+		kfree(rng);
+		return -ENXIO;
+	}
+
+	val = in_be64(rng->regs);
+	rng->mask = val;
+
+	rng_init_per_cpu(rng, dn);
+
+	pr_info_once("Registering arch random hook.\n");
+
+	ppc_md.get_random_long = powernv_get_random_long;
+
+	return 0;
+}
+
+static __init int rng_init(void)
+{
+	struct device_node *dn;
+	int rc;
+
+	for_each_compatible_node(dn, NULL, "ibm,power-rng") {
+		rc = rng_create(dn);
+		if (rc) {
+			pr_err("Failed creating rng for %s (%d).\n",
+				dn->full_name, rc);
+			continue;
+		}
+
+		/* Create devices for hwrng driver */
+		of_platform_device_create(dn, NULL, NULL);
+	}
+
+	return 0;
+}
+subsys_initcall(rng_init);
-- 
cgit 


From 66548e40583b1470300341c6784fdc5176f7609f Mon Sep 17 00:00:00 2001
From: Michael Ellerman <michael@ellerman.id.au>
Date: Fri, 11 Oct 2013 14:07:58 +1100
Subject: hwrng: Add a driver for the hwrng found in power7+ systems

Add a driver for the hwrng found in power7+ systems, based on the
existing code for the arch_get_random_long() hook.

We only register a single instance of the driver, not one per device,
because we use the existing per_cpu array of devices in the arch code.
This means we always read from the "closest" device, avoiding inter-chip
memory traffic.

Signed-off-by: Guo Chao <yan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 drivers/char/hw_random/Kconfig       | 13 ++++++
 drivers/char/hw_random/Makefile      |  1 +
 drivers/char/hw_random/powernv-rng.c | 81 ++++++++++++++++++++++++++++++++++++
 3 files changed, 95 insertions(+)
 create mode 100644 drivers/char/hw_random/powernv-rng.c

diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 0aa9d91daef5..c206de2951f2 100644
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -290,6 +290,19 @@ config HW_RANDOM_PSERIES
 
 	  If unsure, say Y.
 
+config HW_RANDOM_POWERNV
+	tristate "PowerNV Random Number Generator support"
+	depends on HW_RANDOM && PPC_POWERNV
+	default HW_RANDOM
+	---help---
+	  This is the driver for Random Number Generator hardware found
+	  in POWER7+ and above machines for PowerNV platform.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called powernv-rng.
+
+	  If unsure, say Y.
+
 config HW_RANDOM_EXYNOS
 	tristate "EXYNOS HW random number generator support"
 	depends on HW_RANDOM && HAS_IOMEM && HAVE_CLK
diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile
index bed467c9300e..d7d2435ff7fa 100644
--- a/drivers/char/hw_random/Makefile
+++ b/drivers/char/hw_random/Makefile
@@ -24,6 +24,7 @@ obj-$(CONFIG_HW_RANDOM_NOMADIK) += nomadik-rng.o
 obj-$(CONFIG_HW_RANDOM_PICOXCELL) += picoxcell-rng.o
 obj-$(CONFIG_HW_RANDOM_PPC4XX) += ppc4xx-rng.o
 obj-$(CONFIG_HW_RANDOM_PSERIES) += pseries-rng.o
+obj-$(CONFIG_HW_RANDOM_POWERNV) += powernv-rng.o
 obj-$(CONFIG_HW_RANDOM_EXYNOS)	+= exynos-rng.o
 obj-$(CONFIG_HW_RANDOM_TPM) += tpm-rng.o
 obj-$(CONFIG_HW_RANDOM_BCM2835) += bcm2835-rng.o
diff --git a/drivers/char/hw_random/powernv-rng.c b/drivers/char/hw_random/powernv-rng.c
new file mode 100644
index 000000000000..3f4f63204560
--- /dev/null
+++ b/drivers/char/hw_random/powernv-rng.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2013 Michael Ellerman, Guo Chao, IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#define pr_fmt(fmt)	KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/random.h>
+#include <linux/hw_random.h>
+
+static int powernv_rng_read(struct hwrng *rng, void *data, size_t max, bool wait)
+{
+	unsigned long *buf;
+	int i, len;
+
+	/* We rely on rng_buffer_size() being >= sizeof(unsigned long) */
+	len = max / sizeof(unsigned long);
+
+	buf = (unsigned long *)data;
+
+	for (i = 0; i < len; i++)
+		powernv_get_random_long(buf++);
+
+	return len * sizeof(unsigned long);
+}
+
+static struct hwrng powernv_hwrng = {
+	.name = "powernv-rng",
+	.read = powernv_rng_read,
+};
+
+static int powernv_rng_remove(struct platform_device *pdev)
+{
+	hwrng_unregister(&powernv_hwrng);
+
+	return 0;
+}
+
+static int powernv_rng_probe(struct platform_device *pdev)
+{
+	int rc;
+
+	rc = hwrng_register(&powernv_hwrng);
+	if (rc) {
+		/* We only register one device, ignore any others */
+		if (rc == -EEXIST)
+			rc = -ENODEV;
+
+		return rc;
+	}
+
+	pr_info("Registered powernv hwrng.\n");
+
+	return 0;
+}
+
+static struct of_device_id powernv_rng_match[] = {
+	{ .compatible	= "ibm,power-rng",},
+	{},
+};
+MODULE_DEVICE_TABLE(of, powernv_rng_match);
+
+static struct platform_driver powernv_rng_driver = {
+	.driver = {
+		.name = "powernv_rng",
+		.of_match_table = powernv_rng_match,
+	},
+	.probe	= powernv_rng_probe,
+	.remove = powernv_rng_remove,
+};
+module_platform_driver(powernv_rng_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Bare metal HWRNG driver for POWER7+ and above");
-- 
cgit 


From a489043f462639988f86c1cf49475580e9dba965 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <michael@ellerman.id.au>
Date: Fri, 11 Oct 2013 14:07:59 +1100
Subject: powerpc/pseries: Implement arch_get_random_long() based on H_RANDOM

Add support for the arch_get_random_long() hook based on the H_RANDOM
hypervisor call. We trust the hypervisor to provide us with random data,
ie. we don't whiten it in anyway.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/pseries/Makefile |  2 +-
 arch/powerpc/platforms/pseries/rng.c    | 44 +++++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+), 1 deletion(-)
 create mode 100644 arch/powerpc/platforms/pseries/rng.c

diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile
index 6c61ec5ee914..fbccac9cd2dc 100644
--- a/arch/powerpc/platforms/pseries/Makefile
+++ b/arch/powerpc/platforms/pseries/Makefile
@@ -3,7 +3,7 @@ ccflags-$(CONFIG_PPC_PSERIES_DEBUG)	+= -DDEBUG
 
 obj-y			:= lpar.o hvCall.o nvram.o reconfig.o \
 			   setup.o iommu.o event_sources.o ras.o \
-			   firmware.o power.o dlpar.o mobility.o
+			   firmware.o power.o dlpar.o mobility.o rng.o
 obj-$(CONFIG_SMP)	+= smp.o
 obj-$(CONFIG_SCANLOG)	+= scanlog.o
 obj-$(CONFIG_EEH)	+= eeh_pseries.o
diff --git a/arch/powerpc/platforms/pseries/rng.c b/arch/powerpc/platforms/pseries/rng.c
new file mode 100644
index 000000000000..a702f1c08242
--- /dev/null
+++ b/arch/powerpc/platforms/pseries/rng.c
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2013, Michael Ellerman, IBM Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#define pr_fmt(fmt)	"pseries-rng: " fmt
+
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <asm/archrandom.h>
+#include <asm/machdep.h>
+
+
+static int pseries_get_random_long(unsigned long *v)
+{
+	unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+	if (plpar_hcall(H_RANDOM, retbuf) == H_SUCCESS) {
+		*v = retbuf[0];
+		return 1;
+	}
+
+	return 0;
+}
+
+static __init int rng_init(void)
+{
+	struct device_node *dn;
+
+	dn = of_find_compatible_node(NULL, NULL, "ibm,random");
+	if (!dn)
+		return -ENODEV;
+
+	pr_info("Registering arch random hook.\n");
+
+	ppc_md.get_random_long = pseries_get_random_long;
+
+	return 0;
+}
+subsys_initcall(rng_init);
-- 
cgit 


From cf059965713b71b7301fd88f1e98b31c6484dd46 Mon Sep 17 00:00:00 2001
From: Cedric Le Goater <clg@fr.ibm.com>
Date: Mon, 23 Sep 2013 14:17:54 +0200
Subject: powerpc/kernel: Fix endian issue in rtas_pci
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Cédric Le Goater <clg@fr.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/rtas_pci.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kernel/rtas_pci.c b/arch/powerpc/kernel/rtas_pci.c
index 6e7b7cdeec65..7d4c7172f38e 100644
--- a/arch/powerpc/kernel/rtas_pci.c
+++ b/arch/powerpc/kernel/rtas_pci.c
@@ -223,7 +223,7 @@ unsigned long get_phb_buid(struct device_node *phb)
 static int phb_set_bus_ranges(struct device_node *dev,
 			      struct pci_controller *phb)
 {
-	const int *bus_range;
+	const __be32 *bus_range;
 	unsigned int len;
 
 	bus_range = of_get_property(dev, "bus-range", &len);
@@ -231,8 +231,8 @@ static int phb_set_bus_ranges(struct device_node *dev,
 		return 1;
  	}
 
-	phb->first_busno =  bus_range[0];
-	phb->last_busno  =  bus_range[1];
+	phb->first_busno = be32_to_cpu(bus_range[0]);
+	phb->last_busno  = be32_to_cpu(bus_range[1]);
 
 	return 0;
 }
-- 
cgit 


From 8909f6d2c450d0a878bcb1d1184ed0114c5724c9 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 16:52:42 -0700
Subject: Bluetooth: Remove unused h4_check_data_len() function

The function h4_check_data_len() is actually not used. So just
remove it.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/hci_h4.c | 24 ------------------------
 1 file changed, 24 deletions(-)

diff --git a/drivers/bluetooth/hci_h4.c b/drivers/bluetooth/hci_h4.c
index 8ae9f1ea2bb5..7048a583fe51 100644
--- a/drivers/bluetooth/hci_h4.c
+++ b/drivers/bluetooth/hci_h4.c
@@ -124,30 +124,6 @@ static int h4_enqueue(struct hci_uart *hu, struct sk_buff *skb)
 	return 0;
 }
 
-static inline int h4_check_data_len(struct h4_struct *h4, int len)
-{
-	int room = skb_tailroom(h4->rx_skb);
-
-	BT_DBG("len %d room %d", len, room);
-
-	if (!len) {
-		hci_recv_frame(h4->rx_skb);
-	} else if (len > room) {
-		BT_ERR("Data length is too large");
-		kfree_skb(h4->rx_skb);
-	} else {
-		h4->rx_state = H4_W4_DATA;
-		h4->rx_count = len;
-		return len;
-	}
-
-	h4->rx_state = H4_W4_PACKET_TYPE;
-	h4->rx_skb   = NULL;
-	h4->rx_count = 0;
-
-	return 0;
-}
-
 /* Recv data */
 static int h4_recv(struct hci_uart *hu, void *data, int count)
 {
-- 
cgit 


From e48673360b8b113ca83dc3a45e02ad37fdf9f2d0 Mon Sep 17 00:00:00 2001
From: Kevin Hao <haokexin@gmail.com>
Date: Thu, 26 Sep 2013 16:23:56 +0800
Subject: powerpc/booke64: Check napping in performance monitor interrupt

The performance monitor interrupt is asynchronous, so we should check
if the current processor is in napping status in the handler of this
interrupt.

Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/exceptions-64e.S | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S
index 2d067049db27..68d74b45232d 100644
--- a/arch/powerpc/kernel/exceptions-64e.S
+++ b/arch/powerpc/kernel/exceptions-64e.S
@@ -607,6 +607,7 @@ kernel_dbg_exc:
 	NORMAL_EXCEPTION_PROLOG(0x260, BOOKE_INTERRUPT_PERFORMANCE_MONITOR,
 				PROLOG_ADDITION_NONE)
 	EXCEPTION_COMMON(0x260, PACA_EXGEN, INTS_DISABLE)
+	CHECK_NAPPING()
 	addi	r3,r1,STACK_FRAME_OVERHEAD
 	bl	.performance_monitor_exception
 	b	.ret_from_except_lite
-- 
cgit 


From dbd0c5d5296f291a5c3affee4fbdde254632ffca Mon Sep 17 00:00:00 2001
From: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Date: Tue, 17 Sep 2013 11:52:48 +0200
Subject: powerpc: prom_init exception when updating core value

Since the CPU is generating an exception when accessing unaligned word, and
as this exception is not yet handled when running prom_init, data should be
copied from the architecture vector byte per byte.

Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/prom_init.c | 28 ++++++++++++++++++++++------
 1 file changed, 22 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 5fe2842e8bab..cb64a6e1dc51 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -858,7 +858,8 @@ static void __init prom_send_capabilities(void)
 {
 	ihandle root;
 	prom_arg_t ret;
-	__be32 *cores;
+	u32 cores;
+	unsigned char *ptcores;
 
 	root = call_prom("open", 1, 1, ADDR("/"));
 	if (root != 0) {
@@ -868,15 +869,30 @@ static void __init prom_send_capabilities(void)
 		 * (we assume this is the same for all cores) and use it to
 		 * divide NR_CPUS.
 		 */
-		cores = (__be32 *)&ibm_architecture_vec[IBM_ARCH_VEC_NRCORES_OFFSET];
-		if (be32_to_cpup(cores) != NR_CPUS) {
+
+		/* The core value may start at an odd address. If such a word
+		 * access is made at a cache line boundary, this leads to an
+		 * exception which may not be handled at this time.
+		 * Forcing a per byte access to avoid exception.
+		 */
+		ptcores = &ibm_architecture_vec[IBM_ARCH_VEC_NRCORES_OFFSET];
+		cores = 0;
+		cores |= ptcores[0] << 24;
+		cores |= ptcores[1] << 16;
+		cores |= ptcores[2] << 8;
+		cores |= ptcores[3];
+		if (cores != NR_CPUS) {
 			prom_printf("WARNING ! "
 				    "ibm_architecture_vec structure inconsistent: %lu!\n",
-				    be32_to_cpup(cores));
+				    cores);
 		} else {
-			*cores = cpu_to_be32(DIV_ROUND_UP(NR_CPUS, prom_count_smt_threads()));
+			cores = DIV_ROUND_UP(NR_CPUS, prom_count_smt_threads());
 			prom_printf("Max number of cores passed to firmware: %lu (NR_CPUS = %lu)\n",
-				    be32_to_cpup(cores), NR_CPUS);
+				    cores, NR_CPUS);
+			ptcores[0] = (cores >> 24) & 0xff;
+			ptcores[1] = (cores >> 16) & 0xff;
+			ptcores[2] = (cores >> 8) & 0xff;
+			ptcores[3] = cores & 0xff;
 		}
 
 		/* try calling the ibm,client-architecture-support method */
-- 
cgit 


From fed8393ef9f779e51c3e0c844e549e0bbc8d6dd4 Mon Sep 17 00:00:00 2001
From: Eugene Surovegin <ebs@ebshome.net>
Date: Fri, 20 Sep 2013 11:42:20 -0700
Subject: powerpc: Make kernel module helper endian-safe.

Signed-off-by: Eugene Surovegin <surovegin@google.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/module_64.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index 6ee59a0eb268..a102f4412392 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c
@@ -62,6 +62,16 @@ struct ppc64_stub_entry
    r2) into the stub. */
 static struct ppc64_stub_entry ppc64_stub =
 { .jump = {
+#ifdef __LITTLE_ENDIAN__
+	0x00, 0x00, 0x82, 0x3d, /* addis   r12,r2, <high> */
+	0x00, 0x00, 0x8c, 0x39, /* addi    r12,r12, <low> */
+	/* Save current r2 value in magic place on the stack. */
+	0x28, 0x00, 0x41, 0xf8, /* std     r2,40(r1) */
+	0x20, 0x00, 0x6c, 0xe9, /* ld      r11,32(r12) */
+	0x28, 0x00, 0x4c, 0xe8, /* ld      r2,40(r12) */
+	0xa6, 0x03, 0x69, 0x7d, /* mtctr   r11 */
+	0x20, 0x04, 0x80, 0x4e  /* bctr */
+#else
 	0x3d, 0x82, 0x00, 0x00, /* addis   r12,r2, <high> */
 	0x39, 0x8c, 0x00, 0x00, /* addi    r12,r12, <low> */
 	/* Save current r2 value in magic place on the stack. */
@@ -70,6 +80,7 @@ static struct ppc64_stub_entry ppc64_stub =
 	0xe8, 0x4c, 0x00, 0x28, /* ld      r2,40(r12) */
 	0x7d, 0x69, 0x03, 0xa6, /* mtctr   r11 */
 	0x4e, 0x80, 0x04, 0x20  /* bctr */
+#endif
 } };
 
 /* Count how many different 24-bit relocations (different symbol,
@@ -269,8 +280,13 @@ static inline int create_stub(Elf64_Shdr *sechdrs,
 
 	*entry = ppc64_stub;
 
+#ifdef __LITTLE_ENDIAN__
+	loc1 = (Elf64_Half *)&entry->jump[0];
+	loc2 = (Elf64_Half *)&entry->jump[4];
+#else
 	loc1 = (Elf64_Half *)&entry->jump[2];
 	loc2 = (Elf64_Half *)&entry->jump[6];
+#endif
 
 	/* Stub uses address relative to r2. */
 	reladdr = (unsigned long)entry - my_r2(sechdrs, me);
-- 
cgit 


From 306474304fdfe3723562a02226c0a44e8078d3a0 Mon Sep 17 00:00:00 2001
From: Eugene Surovegin <ebs@ebshome.net>
Date: Fri, 20 Sep 2013 11:42:21 -0700
Subject: powerpc: Make ftrace endian-safe.

Signed-off-by: Eugene Surovegin <surovegin@google.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/ftrace.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/powerpc/kernel/ftrace.c b/arch/powerpc/kernel/ftrace.c
index 1fb78561096a..9b27b293a922 100644
--- a/arch/powerpc/kernel/ftrace.c
+++ b/arch/powerpc/kernel/ftrace.c
@@ -174,7 +174,11 @@ __ftrace_make_nop(struct module *mod,
 
 	pr_devel(" %08x %08x\n", jmp[0], jmp[1]);
 
+#ifdef __LITTLE_ENDIAN__
+	ptr = ((unsigned long)jmp[1] << 32) + jmp[0];
+#else
 	ptr = ((unsigned long)jmp[0] << 32) + jmp[1];
+#endif
 
 	/* This should match what was called */
 	if (ptr != ppc_function_entry((void *)addr)) {
-- 
cgit 


From ac237b65f56c9b80d7774c35ccce15a74d445621 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Thu, 29 Aug 2013 16:55:07 +1000
Subject: powerpc: Enable /dev/port when isa_io_special is set

isa_io_special is set when the platform provides a "special"
implementation of inX/outX via some FW interface for example.

Such a platform doesn't need an ISA bridge on PCI, and so /dev/port
should be made available even if one isn't present.

This makes the LPC bus IOs accessible via /dev/port on PowerNV Power8

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/io.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h
index db1f29673c06..575fbf81fad0 100644
--- a/arch/powerpc/include/asm/io.h
+++ b/arch/powerpc/include/asm/io.h
@@ -21,7 +21,7 @@ extern struct pci_dev *isa_bridge_pcidev;
 /*
  * has legacy ISA devices ?
  */
-#define arch_has_dev_port()	(isa_bridge_pcidev != NULL)
+#define arch_has_dev_port()	(isa_bridge_pcidev != NULL || isa_io_special)
 #endif
 
 #include <linux/device.h>
-- 
cgit 


From aaa63093dd4c393391a3368e1c7305b0cc620571 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Thu, 29 Aug 2013 16:55:45 +1000
Subject: powerpc/scom: Change scom_read() and scom_write() to return errors

scom_read() now returns the read value via a pointer argument and
both functions return an int error code

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/scom.h       | 23 +++++++++++++++++------
 arch/powerpc/platforms/wsp/scom_smp.c | 18 +++++++++++++-----
 arch/powerpc/platforms/wsp/scom_wsp.c | 12 ++++++++----
 arch/powerpc/platforms/wsp/wsp.c      | 13 +++++++------
 arch/powerpc/sysdev/scom.c            |  3 +--
 5 files changed, 46 insertions(+), 23 deletions(-)

diff --git a/arch/powerpc/include/asm/scom.h b/arch/powerpc/include/asm/scom.h
index 0cabfd7bc2d1..07dcdcfdaefc 100644
--- a/arch/powerpc/include/asm/scom.h
+++ b/arch/powerpc/include/asm/scom.h
@@ -54,8 +54,8 @@ struct scom_controller {
 	scom_map_t (*map)(struct device_node *ctrl_dev, u64 reg, u64 count);
 	void (*unmap)(scom_map_t map);
 
-	u64 (*read)(scom_map_t map, u32 reg);
-	void (*write)(scom_map_t map, u32 reg, u64 value);
+	int (*read)(scom_map_t map, u32 reg, u64 *value);
+	int (*write)(scom_map_t map, u32 reg, u64 value);
 };
 
 extern const struct scom_controller *scom_controller;
@@ -133,10 +133,18 @@ static inline void scom_unmap(scom_map_t map)
  * scom_read - Read a SCOM register
  * @map: Result of scom_map
  * @reg: Register index within that map
+ * @value: Updated with the value read
+ *
+ * Returns 0 (success) or a negative error code
  */
-static inline u64 scom_read(scom_map_t map, u32 reg)
+static inline int scom_read(scom_map_t map, u32 reg, u64 *value)
 {
-	return scom_controller->read(map, reg);
+	int rc;
+
+	rc = scom_controller->read(map, reg, value);
+	if (rc)
+		*value = 0xfffffffffffffffful;
+	return rc;
 }
 
 /**
@@ -144,12 +152,15 @@ static inline u64 scom_read(scom_map_t map, u32 reg)
  * @map: Result of scom_map
  * @reg: Register index within that map
  * @value: Value to write
+ *
+ * Returns 0 (success) or a negative error code
  */
-static inline void scom_write(scom_map_t map, u32 reg, u64 value)
+static inline int scom_write(scom_map_t map, u32 reg, u64 value)
 {
-	scom_controller->write(map, reg, value);
+	return scom_controller->write(map, reg, value);
 }
 
+
 #endif /* CONFIG_PPC_SCOM */
 #endif /* __ASSEMBLY__ */
 #endif /* __KERNEL__ */
diff --git a/arch/powerpc/platforms/wsp/scom_smp.c b/arch/powerpc/platforms/wsp/scom_smp.c
index b56b70aeb497..268bc899c1f7 100644
--- a/arch/powerpc/platforms/wsp/scom_smp.c
+++ b/arch/powerpc/platforms/wsp/scom_smp.c
@@ -116,7 +116,14 @@ static int a2_scom_ram(scom_map_t scom, int thread, u32 insn, int extmask)
 
 	scom_write(scom, SCOM_RAMIC, cmd);
 
-	while (!((val = scom_read(scom, SCOM_RAMC)) & mask)) {
+	for (;;) {
+		if (scom_read(scom, SCOM_RAMC, &val) != 0) {
+			pr_err("SCOM error on instruction 0x%08x, thread %d\n",
+			       insn, thread);
+			return -1;
+		}
+		if (val & mask)
+			break;
 		pr_devel("Waiting on RAMC = 0x%llx\n", val);
 		if (++n == 3) {
 			pr_err("RAMC timeout on instruction 0x%08x, thread %d\n",
@@ -151,9 +158,7 @@ static int a2_scom_getgpr(scom_map_t scom, int thread, int gpr, int alt,
 	if (rc)
 		return rc;
 
-	*out_gpr = scom_read(scom, SCOM_RAMD);
-
-	return 0;
+	return scom_read(scom, SCOM_RAMD, out_gpr);
 }
 
 static int a2_scom_getspr(scom_map_t scom, int thread, int spr, u64 *out_spr)
@@ -353,7 +358,10 @@ int a2_scom_startup_cpu(unsigned int lcpu, int thr_idx, struct device_node *np)
 
 	pr_devel("Bringing up CPU%d using SCOM...\n", lcpu);
 
-	pccr0 = scom_read(scom, SCOM_PCCR0);
+	if (scom_read(scom, SCOM_PCCR0, &pccr0) != 0) {
+		printk(KERN_ERR "XSCOM failure readng PCCR0 on CPU%d\n", lcpu);
+		return -1;
+	}
 	scom_write(scom, SCOM_PCCR0, pccr0 | SCOM_PCCR0_ENABLE_DEBUG |
 				     SCOM_PCCR0_ENABLE_RAM);
 
diff --git a/arch/powerpc/platforms/wsp/scom_wsp.c b/arch/powerpc/platforms/wsp/scom_wsp.c
index 4052e2259f30..54172c4a8a64 100644
--- a/arch/powerpc/platforms/wsp/scom_wsp.c
+++ b/arch/powerpc/platforms/wsp/scom_wsp.c
@@ -50,18 +50,22 @@ static void wsp_scom_unmap(scom_map_t map)
 	iounmap((void *)map);
 }
 
-static u64 wsp_scom_read(scom_map_t map, u32 reg)
+static int wsp_scom_read(scom_map_t map, u32 reg, u64 *value)
 {
 	u64 __iomem *addr = (u64 __iomem *)map;
 
-	return in_be64(addr + reg);
+	*value = in_be64(addr + reg);
+
+	return 0;
 }
 
-static void wsp_scom_write(scom_map_t map, u32 reg, u64 value)
+static int wsp_scom_write(scom_map_t map, u32 reg, u64 value)
 {
 	u64 __iomem *addr = (u64 __iomem *)map;
 
-	return out_be64(addr + reg, value);
+	out_be64(addr + reg, value);
+
+	return 0;
 }
 
 static const struct scom_controller wsp_scom_controller = {
diff --git a/arch/powerpc/platforms/wsp/wsp.c b/arch/powerpc/platforms/wsp/wsp.c
index d25cc96c21b8..ddb6efe88914 100644
--- a/arch/powerpc/platforms/wsp/wsp.c
+++ b/arch/powerpc/platforms/wsp/wsp.c
@@ -89,6 +89,7 @@ void wsp_halt(void)
 	struct device_node *dn;
 	struct device_node *mine;
 	struct device_node *me;
+	int rc;
 
 	me = of_get_cpu_node(smp_processor_id(), NULL);
 	mine = scom_find_parent(me);
@@ -101,15 +102,15 @@ void wsp_halt(void)
 
 		/* read-modify-write it so the HW probe does not get
 		 * confused */
-		val = scom_read(m, 0);
-		val |= 1;
-		scom_write(m, 0, val);
+		rc = scom_read(m, 0, &val);
+		if (rc == 0)
+			scom_write(m, 0, val | 1);
 		scom_unmap(m);
 	}
 	m = scom_map(mine, 0, 1);
-	val = scom_read(m, 0);
-	val |= 1;
-	scom_write(m, 0, val);
+	rc = scom_read(m, 0, &val);
+	if (rc == 0)
+		scom_write(m, 0, val | 1);
 	/* should never return */
 	scom_unmap(m);
 }
diff --git a/arch/powerpc/sysdev/scom.c b/arch/powerpc/sysdev/scom.c
index 9193e12df695..10f1d9e56612 100644
--- a/arch/powerpc/sysdev/scom.c
+++ b/arch/powerpc/sysdev/scom.c
@@ -137,8 +137,7 @@ static int scom_val_get(void *data, u64 *val)
 	if (!scom_map_ok(ent->map))
 		return -EFAULT;
 
-	*val = scom_read(ent->map, 0);
-	return 0;
+	return scom_read(ent->map, 0, val);
 }
 DEFINE_SIMPLE_ATTRIBUTE(scom_val_fops, scom_val_get, scom_val_set,
 			"0x%llx\n");
-- 
cgit 


From 5f33af4c0059255bcbf82a98a3789a01171b72e5 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Thu, 29 Aug 2013 16:56:16 +1000
Subject: powerpc/scom: Add support for "reg" property

When devices are direct children of a scom controller node, they
should be able to use the normal "reg" property instead of "scom-reg".

In that case, they also use #address-cells rather than #scom-cells
to indicate the size of an entry.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/sysdev/scom.c | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/arch/powerpc/sysdev/scom.c b/arch/powerpc/sysdev/scom.c
index 10f1d9e56612..413622d54395 100644
--- a/arch/powerpc/sysdev/scom.c
+++ b/arch/powerpc/sysdev/scom.c
@@ -53,7 +53,7 @@ scom_map_t scom_map_device(struct device_node *dev, int index)
 {
 	struct device_node *parent;
 	unsigned int cells, size;
-	const u32 *prop;
+	const __be32 *prop, *sprop;
 	u64 reg, cnt;
 	scom_map_t ret;
 
@@ -62,12 +62,24 @@ scom_map_t scom_map_device(struct device_node *dev, int index)
 	if (parent == NULL)
 		return 0;
 
-	prop = of_get_property(parent, "#scom-cells", NULL);
-	cells = prop ? *prop : 1;
-
+	/*
+	 * We support "scom-reg" properties for adding scom registers
+	 * to a random device-tree node with an explicit scom-parent
+	 *
+	 * We also support the simple "reg" property if the device is
+	 * a direct child of a scom controller.
+	 *
+	 * In case both exist, "scom-reg" takes precedence.
+	 */
 	prop = of_get_property(dev, "scom-reg", &size);
+	sprop = of_get_property(parent, "#scom-cells", NULL);
+	if (!prop && parent == dev->parent) {
+		prop = of_get_property(dev, "reg", &size);
+		sprop = of_get_property(parent, "#address-cells", NULL);
+	}
 	if (!prop)
-		return 0;
+		return NULL;
+	cells = sprop ? be32_to_cpup(sprop) : 1;
 	size >>= 2;
 
 	if (index >= (size / (2*cells)))
-- 
cgit 


From 762fd3ab6d2c4b438ce49f54860dc509e591209c Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Thu, 29 Aug 2013 16:56:59 +1000
Subject: powerpc/scom: Create debugfs files using ibm,chip-id if available

When creating the debugfs scom files, use "ibm,chip-id" as the scom%d
index rather than a simple made up number when possible.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/sysdev/scom.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/sysdev/scom.c b/arch/powerpc/sysdev/scom.c
index 413622d54395..cb20d542a5aa 100644
--- a/arch/powerpc/sysdev/scom.c
+++ b/arch/powerpc/sysdev/scom.c
@@ -196,8 +196,13 @@ static int scom_debug_init(void)
 		return -1;
 
 	i = rc = 0;
-	for_each_node_with_property(dn, "scom-controller")
-		rc |= scom_debug_init_one(root, dn, i++);
+	for_each_node_with_property(dn, "scom-controller") {
+		int id = of_get_ibm_chip_id(dn);
+		if (id == -1)
+			id = i;
+		rc |= scom_debug_init_one(root, dn, id);
+		i++;
+	}
 
 	return rc;
 }
-- 
cgit 


From 8adae0c8d822e54242694cdfed33cc9c346d607a Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Thu, 29 Aug 2013 16:57:33 +1000
Subject: powerpc/powernv: Add scom support under OPALv3

OPAL v3 provides interfaces to access the chips XSCOM, expose
this via the existing scom infrastructure.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/powernv/Kconfig      |   1 +
 arch/powerpc/platforms/powernv/Makefile     |   1 +
 arch/powerpc/platforms/powernv/opal-xscom.c | 105 ++++++++++++++++++++++++++++
 3 files changed, 107 insertions(+)
 create mode 100644 arch/powerpc/platforms/powernv/opal-xscom.c

diff --git a/arch/powerpc/platforms/powernv/Kconfig b/arch/powerpc/platforms/powernv/Kconfig
index 21084645c70a..9fced3f6d2dc 100644
--- a/arch/powerpc/platforms/powernv/Kconfig
+++ b/arch/powerpc/platforms/powernv/Kconfig
@@ -9,6 +9,7 @@ config PPC_POWERNV
 	select EPAPR_BOOT
 	select PPC_INDIRECT_PIO
 	select PPC_UDBG_16550
+	select PPC_SCOM
 	select ARCH_RANDOM
 	default y
 
diff --git a/arch/powerpc/platforms/powernv/Makefile b/arch/powerpc/platforms/powernv/Makefile
index 6760a86d5bd0..050d57e0c788 100644
--- a/arch/powerpc/platforms/powernv/Makefile
+++ b/arch/powerpc/platforms/powernv/Makefile
@@ -4,3 +4,4 @@ obj-y			+= opal-rtc.o opal-nvram.o opal-lpc.o rng.o
 obj-$(CONFIG_SMP)	+= smp.o
 obj-$(CONFIG_PCI)	+= pci.o pci-p5ioc2.o pci-ioda.o
 obj-$(CONFIG_EEH)	+= eeh-ioda.o eeh-powernv.o
+obj-$(CONFIG_PPC_SCOM)	+= opal-xscom.o
diff --git a/arch/powerpc/platforms/powernv/opal-xscom.c b/arch/powerpc/platforms/powernv/opal-xscom.c
new file mode 100644
index 000000000000..3ed5c6498324
--- /dev/null
+++ b/arch/powerpc/platforms/powernv/opal-xscom.c
@@ -0,0 +1,105 @@
+/*
+ * PowerNV LPC bus handling.
+ *
+ * Copyright 2013 IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <linux/bug.h>
+#include <linux/gfp.h>
+#include <linux/slab.h>
+
+#include <asm/machdep.h>
+#include <asm/firmware.h>
+#include <asm/opal.h>
+#include <asm/scom.h>
+
+/*
+ * We could probably fit that inside the scom_map_t
+ * which is a void* after all but it's really too ugly
+ * so let's kmalloc it for now
+ */
+struct opal_scom_map {
+	uint32_t chip;
+	uint32_t addr;
+};
+
+static scom_map_t opal_scom_map(struct device_node *dev, u64 reg, u64 count)
+{
+	struct opal_scom_map *m;
+	const __be32 *gcid;
+
+	if (!of_get_property(dev, "scom-controller", NULL)) {
+		pr_err("%s: device %s is not a SCOM controller\n",
+			__func__, dev->full_name);
+		return SCOM_MAP_INVALID;
+	}
+	gcid = of_get_property(dev, "ibm,chip-id", NULL);
+	if (!gcid) {
+		pr_err("%s: device %s has no ibm,chip-id\n",
+			__func__, dev->full_name);
+		return SCOM_MAP_INVALID;
+	}
+	m = kmalloc(sizeof(struct opal_scom_map), GFP_KERNEL);
+	if (!m)
+		return NULL;
+	m->chip = be32_to_cpup(gcid);
+	m->addr = reg;
+
+	return (scom_map_t)m;
+}
+
+static void opal_scom_unmap(scom_map_t map)
+{
+	kfree(map);
+}
+
+static int opal_xscom_err_xlate(int64_t rc)
+{
+	switch(rc) {
+	case 0:
+		return 0;
+	/* Add more translations if necessary */
+	default:
+		return -EIO;
+	}
+}
+
+static int opal_scom_read(scom_map_t map, u32 reg, u64 *value)
+{
+	struct opal_scom_map *m = map;
+	int64_t rc;
+
+	rc = opal_xscom_read(m->chip, m->addr + reg, (uint64_t *)__pa(value));
+	return opal_xscom_err_xlate(rc);
+}
+
+static int opal_scom_write(scom_map_t map, u32 reg, u64 value)
+{
+	struct opal_scom_map *m = map;
+	int64_t rc;
+
+	rc = opal_xscom_write(m->chip, m->addr + reg, value);
+	return opal_xscom_err_xlate(rc);
+}
+
+static const struct scom_controller opal_scom_controller = {
+	.map	= opal_scom_map,
+	.unmap	= opal_scom_unmap,
+	.read	= opal_scom_read,
+	.write	= opal_scom_write
+};
+
+static int opal_xscom_init(void)
+{
+	if (firmware_has_feature(FW_FEATURE_OPALv3))
+		scom_init(&opal_scom_controller);
+	return 0;
+}
+arch_initcall(opal_xscom_init);
-- 
cgit 


From 4777f79689bc722d12b3cfa1e2e92809cbe7bb38 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Thu, 29 Aug 2013 16:58:12 +1000
Subject: powerpc/scom: CONFIG_SCOM_DEBUGFS should depend on CONFIG_DEBUG_FS

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/sysdev/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/sysdev/Kconfig b/arch/powerpc/sysdev/Kconfig
index ab4cb5476472..13ec968be4c7 100644
--- a/arch/powerpc/sysdev/Kconfig
+++ b/arch/powerpc/sysdev/Kconfig
@@ -28,7 +28,7 @@ config PPC_SCOM
 
 config SCOM_DEBUGFS
 	bool "Expose SCOM controllers via debugfs"
-	depends on PPC_SCOM
+	depends on PPC_SCOM && DEBUG_FS
 	default n
 
 config GE_FPGA
-- 
cgit 


From 81fafea67a2ea418673df2df2b22a81f0c5a455a Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Thu, 29 Aug 2013 17:25:35 +1000
Subject: powerpc/scom: Use "devspec" rather than "path" in debugfs entries

This is the traditional name for device-tree path, used in sysfs,
do the same for the XSCOM debugfs files.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/sysdev/scom.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/sysdev/scom.c b/arch/powerpc/sysdev/scom.c
index cb20d542a5aa..3963d995648a 100644
--- a/arch/powerpc/sysdev/scom.c
+++ b/arch/powerpc/sysdev/scom.c
@@ -180,7 +180,7 @@ static int scom_debug_init_one(struct dentry *root, struct device_node *dn,
 
 	debugfs_create_file("addr", 0600, dir, ent, &scom_addr_fops);
 	debugfs_create_file("value", 0600, dir, ent, &scom_val_fops);
-	debugfs_create_blob("path", 0400, dir, &ent->blob);
+	debugfs_create_blob("devspec", 0400, dir, &ent->blob);
 
 	return 0;
 }
-- 
cgit 


From 20bb842b9b0e26a5768b62ee639e64a2ecaada8c Mon Sep 17 00:00:00 2001
From: Gavin Shan <shangw@linux.vnet.ibm.com>
Date: Fri, 6 Sep 2013 09:00:00 +0800
Subject: powerpc/powernv: Enable EEH for PHB3

The EEH isn't enabled for PHB3 and the patch intends to enable it.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/powernv/eeh-ioda.c    | 26 +++++++++++---------------
 arch/powerpc/platforms/powernv/eeh-powernv.c |  5 +----
 2 files changed, 12 insertions(+), 19 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/eeh-ioda.c b/arch/powerpc/platforms/powernv/eeh-ioda.c
index cf42e74514fa..799ccaa07b80 100644
--- a/arch/powerpc/platforms/powernv/eeh-ioda.c
+++ b/arch/powerpc/platforms/powernv/eeh-ioda.c
@@ -106,27 +106,23 @@ static int ioda_eeh_post_init(struct pci_controller *hose)
 		ioda_eeh_nb_init = 1;
 	}
 
-	/* FIXME: Enable it for PHB3 later */
-	if (phb->type == PNV_PHB_IODA1) {
+	/* We needn't HUB diag-data on PHB3 */
+	if (phb->type == PNV_PHB_IODA1 && !hub_diag) {
+		hub_diag = (char *)__get_free_page(GFP_KERNEL | __GFP_ZERO);
 		if (!hub_diag) {
-			hub_diag = (char *)__get_free_page(GFP_KERNEL |
-							   __GFP_ZERO);
-			if (!hub_diag) {
-				pr_err("%s: Out of memory !\n",
-				       __func__);
-				return -ENOMEM;
-			}
+			pr_err("%s: Out of memory !\n", __func__);
+			return -ENOMEM;
 		}
+	}
 
 #ifdef CONFIG_DEBUG_FS
-		if (phb->dbgfs)
-			debugfs_create_file("err_injct", 0600,
-					    phb->dbgfs, hose,
-					    &ioda_eeh_dbgfs_ops);
+	if (phb->dbgfs)
+		debugfs_create_file("err_injct", 0600,
+				    phb->dbgfs, hose,
+				    &ioda_eeh_dbgfs_ops);
 #endif
 
-		phb->eeh_state |= PNV_EEH_STATE_ENABLED;
-	}
+	phb->eeh_state |= PNV_EEH_STATE_ENABLED;
 
 	return 0;
 }
diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c
index 79663d26e6ea..73b981438cc5 100644
--- a/arch/powerpc/platforms/powernv/eeh-powernv.c
+++ b/arch/powerpc/platforms/powernv/eeh-powernv.c
@@ -144,11 +144,8 @@ static int powernv_eeh_dev_probe(struct pci_dev *dev, void *flag)
 	/*
 	 * Enable EEH explicitly so that we will do EEH check
 	 * while accessing I/O stuff
-	 *
-	 * FIXME: Enable that for PHB3 later
 	 */
-	if (phb->type == PNV_PHB_IODA1)
-		eeh_subsystem_enabled = 1;
+	eeh_subsystem_enabled = 1;
 
 	/* Save memory bars */
 	eeh_save_bars(edev);
-- 
cgit 


From ff6bdcd967f6f5ca870a42a744acc8788faaa1d2 Mon Sep 17 00:00:00 2001
From: Gavin Shan <shangw@linux.vnet.ibm.com>
Date: Fri, 6 Sep 2013 09:00:01 +0800
Subject: powerpc/powernv: Support inbound error injection

For now, we only support outbound error injection. Actually, the
hardware supports injecting inbound errors as well. The patch enables
to inject inbound errors.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/powernv/eeh-ioda.c | 59 ++++++++++++++++++++++++++-----
 1 file changed, 50 insertions(+), 9 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/eeh-ioda.c b/arch/powerpc/platforms/powernv/eeh-ioda.c
index 799ccaa07b80..34e0583106cf 100644
--- a/arch/powerpc/platforms/powernv/eeh-ioda.c
+++ b/arch/powerpc/platforms/powernv/eeh-ioda.c
@@ -59,26 +59,60 @@ static struct notifier_block ioda_eeh_nb = {
 };
 
 #ifdef CONFIG_DEBUG_FS
-static int ioda_eeh_dbgfs_set(void *data, u64 val)
+static int ioda_eeh_dbgfs_set(void *data, int offset, u64 val)
 {
 	struct pci_controller *hose = data;
 	struct pnv_phb *phb = hose->private_data;
 
-	out_be64(phb->regs + 0xD10, val);
+	out_be64(phb->regs + offset, val);
 	return 0;
 }
 
-static int ioda_eeh_dbgfs_get(void *data, u64 *val)
+static int ioda_eeh_dbgfs_get(void *data, int offset, u64 *val)
 {
 	struct pci_controller *hose = data;
 	struct pnv_phb *phb = hose->private_data;
 
-	*val = in_be64(phb->regs + 0xD10);
+	*val = in_be64(phb->regs + offset);
 	return 0;
 }
 
-DEFINE_SIMPLE_ATTRIBUTE(ioda_eeh_dbgfs_ops, ioda_eeh_dbgfs_get,
-			ioda_eeh_dbgfs_set, "0x%llx\n");
+static int ioda_eeh_outb_dbgfs_set(void *data, u64 val)
+{
+	return ioda_eeh_dbgfs_set(data, 0xD10, val);
+}
+
+static int ioda_eeh_outb_dbgfs_get(void *data, u64 *val)
+{
+	return ioda_eeh_dbgfs_get(data, 0xD10, val);
+}
+
+static int ioda_eeh_inbA_dbgfs_set(void *data, u64 val)
+{
+	return ioda_eeh_dbgfs_set(data, 0xD90, val);
+}
+
+static int ioda_eeh_inbA_dbgfs_get(void *data, u64 *val)
+{
+	return ioda_eeh_dbgfs_get(data, 0xD90, val);
+}
+
+static int ioda_eeh_inbB_dbgfs_set(void *data, u64 val)
+{
+	return ioda_eeh_dbgfs_set(data, 0xE10, val);
+}
+
+static int ioda_eeh_inbB_dbgfs_get(void *data, u64 *val)
+{
+	return ioda_eeh_dbgfs_get(data, 0xE10, val);
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(ioda_eeh_outb_dbgfs_ops, ioda_eeh_outb_dbgfs_get,
+			ioda_eeh_outb_dbgfs_set, "0x%llx\n");
+DEFINE_SIMPLE_ATTRIBUTE(ioda_eeh_inbA_dbgfs_ops, ioda_eeh_inbA_dbgfs_get,
+			ioda_eeh_inbA_dbgfs_set, "0x%llx\n");
+DEFINE_SIMPLE_ATTRIBUTE(ioda_eeh_inbB_dbgfs_ops, ioda_eeh_inbB_dbgfs_get,
+			ioda_eeh_inbB_dbgfs_set, "0x%llx\n");
 #endif /* CONFIG_DEBUG_FS */
 
 /**
@@ -116,10 +150,17 @@ static int ioda_eeh_post_init(struct pci_controller *hose)
 	}
 
 #ifdef CONFIG_DEBUG_FS
-	if (phb->dbgfs)
-		debugfs_create_file("err_injct", 0600,
+	if (phb->dbgfs) {
+		debugfs_create_file("err_injct_outbound", 0600,
+				    phb->dbgfs, hose,
+				    &ioda_eeh_outb_dbgfs_ops);
+		debugfs_create_file("err_injct_inboundA", 0600,
 				    phb->dbgfs, hose,
-				    &ioda_eeh_dbgfs_ops);
+				    &ioda_eeh_inbA_dbgfs_ops);
+		debugfs_create_file("err_injct_inboundB", 0600,
+				    phb->dbgfs, hose,
+				    &ioda_eeh_inbB_dbgfs_ops);
+	}
 #endif
 
 	phb->eeh_state |= PNV_EEH_STATE_ENABLED;
-- 
cgit 


From 98cea5fec48a4af8498a0c5c5fccf64f82fc1ce2 Mon Sep 17 00:00:00 2001
From: Gavin Shan <shangw@linux.vnet.ibm.com>
Date: Fri, 6 Sep 2013 09:00:02 +0800
Subject: powerpc/eeh: Output error number

The patch prints the error number while failing to retrieve error
log from firmware. It's helpful for debugging.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/powernv/eeh-ioda.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/eeh-ioda.c b/arch/powerpc/platforms/powernv/eeh-ioda.c
index 34e0583106cf..f426f4c24fb6 100644
--- a/arch/powerpc/platforms/powernv/eeh-ioda.c
+++ b/arch/powerpc/platforms/powernv/eeh-ioda.c
@@ -583,8 +583,8 @@ static int ioda_eeh_get_log(struct eeh_pe *pe, int severity,
 			phb->diag.blob, PNV_PCI_DIAG_BUF_SIZE);
 	if (ret) {
 		spin_unlock_irqrestore(&phb->lock, flags);
-		pr_warning("%s: Failed to get log for PHB#%x-PE#%x\n",
-			   __func__, hose->global_number, pe->addr);
+		pr_warning("%s: Can't get log for PHB#%x-PE#%x (%lld)\n",
+			   __func__, hose->global_number, pe->addr, ret);
 		return -EIO;
 	}
 
-- 
cgit 


From 5c9d6d759b3be9f9bdd6f7e5f440d870a4ec675a Mon Sep 17 00:00:00 2001
From: Gavin Shan <shangw@linux.vnet.ibm.com>
Date: Fri, 6 Sep 2013 09:00:03 +0800
Subject: powerpc/powernv: Double size of log blob

Each PHB instance (struct pnv_phb) has its corresponding log blob,
which is used to hold the retrieved error log from firmware. The
current size of that (4096) isn't enough for PHB3 case and the patch
makes that double to 8192.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/powernv/pci.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h
index dfe20104238e..d0bb5204ece3 100644
--- a/arch/powerpc/platforms/powernv/pci.h
+++ b/arch/powerpc/platforms/powernv/pci.h
@@ -17,7 +17,7 @@ enum pnv_phb_model {
 	PNV_PHB_MODEL_PHB3,
 };
 
-#define PNV_PCI_DIAG_BUF_SIZE	4096
+#define PNV_PCI_DIAG_BUF_SIZE	8192
 #define PNV_IODA_PE_DEV		(1 << 0)	/* PE has single PCI device	*/
 #define PNV_IODA_PE_BUS		(1 << 1)	/* PE has primary PCI bus	*/
 #define PNV_IODA_PE_BUS_ALL	(1 << 2)	/* PE has subordinate buses	*/
-- 
cgit 


From 8c6852e036daa512376de381a3b61547d90465d4 Mon Sep 17 00:00:00 2001
From: Gavin Shan <shangw@linux.vnet.ibm.com>
Date: Fri, 6 Sep 2013 09:00:04 +0800
Subject: powerpc/eeh: Output PHB3 diag-data

The patch adds function ioda_eeh_phb3_phb_diag() to dump PHB3
PHB diag-data. That's called while detecting informative errors
or frozen PE on the specific PHB.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/opal.h           | 65 ++++++++++++++++++++++++++++
 arch/powerpc/platforms/powernv/eeh-ioda.c | 70 +++++++++++++++++++++++++++++++
 2 files changed, 135 insertions(+)

diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index 51e3b265ec12..4cc33ba1edd3 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -460,10 +460,12 @@ enum {
 
 enum {
 	OPAL_PHB_ERROR_DATA_TYPE_P7IOC = 1,
+	OPAL_PHB_ERROR_DATA_TYPE_PHB3 = 2
 };
 
 enum {
 	OPAL_P7IOC_NUM_PEST_REGS = 128,
+	OPAL_PHB3_NUM_PEST_REGS = 256
 };
 
 struct OpalIoPhbErrorCommon {
@@ -531,6 +533,69 @@ struct OpalIoP7IOCPhbErrorData {
 	uint64_t pestB[OPAL_P7IOC_NUM_PEST_REGS];
 };
 
+struct OpalIoPhb3ErrorData {
+	struct OpalIoPhbErrorCommon common;
+
+	uint32_t brdgCtl;
+
+	/* PHB3 UTL regs */
+	uint32_t portStatusReg;
+	uint32_t rootCmplxStatus;
+	uint32_t busAgentStatus;
+
+	/* PHB3 cfg regs */
+	uint32_t deviceStatus;
+	uint32_t slotStatus;
+	uint32_t linkStatus;
+	uint32_t devCmdStatus;
+	uint32_t devSecStatus;
+
+	/* cfg AER regs */
+	uint32_t rootErrorStatus;
+	uint32_t uncorrErrorStatus;
+	uint32_t corrErrorStatus;
+	uint32_t tlpHdr1;
+	uint32_t tlpHdr2;
+	uint32_t tlpHdr3;
+	uint32_t tlpHdr4;
+	uint32_t sourceId;
+
+	uint32_t rsv3;
+
+	/* Record data about the call to allocate a buffer */
+	uint64_t errorClass;
+	uint64_t correlator;
+
+	uint64_t nFir;			/* 000 */
+	uint64_t nFirMask;		/* 003 */
+	uint64_t nFirWOF;		/* 008 */
+
+	/* PHB3 MMIO Error Regs */
+	uint64_t phbPlssr;		/* 120 */
+	uint64_t phbCsr;		/* 110 */
+	uint64_t lemFir;		/* C00 */
+	uint64_t lemErrorMask;		/* C18 */
+	uint64_t lemWOF;		/* C40 */
+	uint64_t phbErrorStatus;	/* C80 */
+	uint64_t phbFirstErrorStatus;	/* C88 */
+	uint64_t phbErrorLog0;		/* CC0 */
+	uint64_t phbErrorLog1;		/* CC8 */
+	uint64_t mmioErrorStatus;	/* D00 */
+	uint64_t mmioFirstErrorStatus;	/* D08 */
+	uint64_t mmioErrorLog0;		/* D40 */
+	uint64_t mmioErrorLog1;		/* D48 */
+	uint64_t dma0ErrorStatus;	/* D80 */
+	uint64_t dma0FirstErrorStatus;	/* D88 */
+	uint64_t dma0ErrorLog0;		/* DC0 */
+	uint64_t dma0ErrorLog1;		/* DC8 */
+	uint64_t dma1ErrorStatus;	/* E00 */
+	uint64_t dma1FirstErrorStatus;	/* E08 */
+	uint64_t dma1ErrorLog0;		/* E40 */
+	uint64_t dma1ErrorLog1;		/* E48 */
+	uint64_t pestA[OPAL_PHB3_NUM_PEST_REGS];
+	uint64_t pestB[OPAL_PHB3_NUM_PEST_REGS];
+};
+
 typedef struct oppanel_line {
 	const char * 	line;
 	uint64_t 	line_len;
diff --git a/arch/powerpc/platforms/powernv/eeh-ioda.c b/arch/powerpc/platforms/powernv/eeh-ioda.c
index f426f4c24fb6..02245cee7818 100644
--- a/arch/powerpc/platforms/powernv/eeh-ioda.c
+++ b/arch/powerpc/platforms/powernv/eeh-ioda.c
@@ -747,6 +747,73 @@ static void ioda_eeh_p7ioc_phb_diag(struct pci_controller *hose,
 	}
 }
 
+static void ioda_eeh_phb3_phb_diag(struct pci_controller *hose,
+				    struct OpalIoPhbErrorCommon *common)
+{
+	struct OpalIoPhb3ErrorData *data;
+	int i;
+
+	data = (struct OpalIoPhb3ErrorData*)common;
+	pr_info("PHB3 PHB#%x Diag-data (Version: %d)\n\n",
+		hose->global_number, common->version);
+
+	pr_info("  brdgCtl:              %08x\n", data->brdgCtl);
+
+	pr_info("  portStatusReg:        %08x\n", data->portStatusReg);
+	pr_info("  rootCmplxStatus:      %08x\n", data->rootCmplxStatus);
+	pr_info("  busAgentStatus:       %08x\n", data->busAgentStatus);
+
+	pr_info("  deviceStatus:         %08x\n", data->deviceStatus);
+	pr_info("  slotStatus:           %08x\n", data->slotStatus);
+	pr_info("  linkStatus:           %08x\n", data->linkStatus);
+	pr_info("  devCmdStatus:         %08x\n", data->devCmdStatus);
+	pr_info("  devSecStatus:         %08x\n", data->devSecStatus);
+
+	pr_info("  rootErrorStatus:      %08x\n", data->rootErrorStatus);
+	pr_info("  uncorrErrorStatus:    %08x\n", data->uncorrErrorStatus);
+	pr_info("  corrErrorStatus:      %08x\n", data->corrErrorStatus);
+	pr_info("  tlpHdr1:              %08x\n", data->tlpHdr1);
+	pr_info("  tlpHdr2:              %08x\n", data->tlpHdr2);
+	pr_info("  tlpHdr3:              %08x\n", data->tlpHdr3);
+	pr_info("  tlpHdr4:              %08x\n", data->tlpHdr4);
+	pr_info("  sourceId:             %08x\n", data->sourceId);
+	pr_info("  errorClass:           %016llx\n", data->errorClass);
+	pr_info("  correlator:           %016llx\n", data->correlator);
+	pr_info("  nFir:                 %016llx\n", data->nFir);
+	pr_info("  nFirMask:             %016llx\n", data->nFirMask);
+	pr_info("  nFirWOF:              %016llx\n", data->nFirWOF);
+	pr_info("  PhbPlssr:             %016llx\n", data->phbPlssr);
+	pr_info("  PhbCsr:               %016llx\n", data->phbCsr);
+	pr_info("  lemFir:               %016llx\n", data->lemFir);
+	pr_info("  lemErrorMask:         %016llx\n", data->lemErrorMask);
+	pr_info("  lemWOF:               %016llx\n", data->lemWOF);
+	pr_info("  phbErrorStatus:       %016llx\n", data->phbErrorStatus);
+	pr_info("  phbFirstErrorStatus:  %016llx\n", data->phbFirstErrorStatus);
+	pr_info("  phbErrorLog0:         %016llx\n", data->phbErrorLog0);
+	pr_info("  phbErrorLog1:         %016llx\n", data->phbErrorLog1);
+	pr_info("  mmioErrorStatus:      %016llx\n", data->mmioErrorStatus);
+	pr_info("  mmioFirstErrorStatus: %016llx\n", data->mmioFirstErrorStatus);
+	pr_info("  mmioErrorLog0:        %016llx\n", data->mmioErrorLog0);
+	pr_info("  mmioErrorLog1:        %016llx\n", data->mmioErrorLog1);
+	pr_info("  dma0ErrorStatus:      %016llx\n", data->dma0ErrorStatus);
+	pr_info("  dma0FirstErrorStatus: %016llx\n", data->dma0FirstErrorStatus);
+	pr_info("  dma0ErrorLog0:        %016llx\n", data->dma0ErrorLog0);
+	pr_info("  dma0ErrorLog1:        %016llx\n", data->dma0ErrorLog1);
+	pr_info("  dma1ErrorStatus:      %016llx\n", data->dma1ErrorStatus);
+	pr_info("  dma1FirstErrorStatus: %016llx\n", data->dma1FirstErrorStatus);
+	pr_info("  dma1ErrorLog0:        %016llx\n", data->dma1ErrorLog0);
+	pr_info("  dma1ErrorLog1:        %016llx\n", data->dma1ErrorLog1);
+
+	for (i = 0; i < OPAL_PHB3_NUM_PEST_REGS; i++) {
+		if ((data->pestA[i] >> 63) == 0 &&
+		    (data->pestB[i] >> 63) == 0)
+			continue;
+
+		pr_info("  PE[%3d] PESTA:        %016llx\n", i, data->pestA[i]);
+		pr_info("          PESTB:        %016llx\n", data->pestB[i]);
+	}
+}
+
 static void ioda_eeh_phb_diag(struct pci_controller *hose)
 {
 	struct pnv_phb *phb = hose->private_data;
@@ -765,6 +832,9 @@ static void ioda_eeh_phb_diag(struct pci_controller *hose)
 	case OPAL_PHB_ERROR_DATA_TYPE_P7IOC:
 		ioda_eeh_p7ioc_phb_diag(hose, common);
 		break;
+	case OPAL_PHB_ERROR_DATA_TYPE_PHB3:
+		ioda_eeh_phb3_phb_diag(hose, common);
+		break;
 	default:
 		pr_warning("%s: Unrecognized I/O chip %d\n",
 			   __func__, common->ioType);
-- 
cgit 


From 5293bf97a27e1be8ac6096aa198ff6a9e3e6837c Mon Sep 17 00:00:00 2001
From: Gavin Shan <shangw@linux.vnet.ibm.com>
Date: Fri, 6 Sep 2013 09:00:05 +0800
Subject: powerpc/eeh: Reorder output messages

We already had some output messages from EEH core. Occasionally,
we can see the output messages from EEH core before the stack
dump. That's not what we expected. The patch fixes that and shows
the stack dump prior to output messages from EEH core.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/eeh.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
index 55593ee2d5aa..1fb331db34c8 100644
--- a/arch/powerpc/kernel/eeh.c
+++ b/arch/powerpc/kernel/eeh.c
@@ -327,11 +327,11 @@ static int eeh_phb_check_failure(struct eeh_pe *pe)
 	/* Isolate the PHB and send event */
 	eeh_pe_state_mark(phb_pe, EEH_PE_ISOLATED);
 	eeh_serialize_unlock(flags);
-	eeh_send_failure_event(phb_pe);
 
 	pr_err("EEH: PHB#%x failure detected\n",
 		phb_pe->phb->global_number);
 	dump_stack();
+	eeh_send_failure_event(phb_pe);
 
 	return 1;
 out:
@@ -454,8 +454,6 @@ int eeh_dev_check_failure(struct eeh_dev *edev)
 	eeh_pe_state_mark(pe, EEH_PE_ISOLATED);
 	eeh_serialize_unlock(flags);
 
-	eeh_send_failure_event(pe);
-
 	/* Most EEH events are due to device driver bugs.  Having
 	 * a stack trace will help the device-driver authors figure
 	 * out what happened.  So print that out.
@@ -464,6 +462,8 @@ int eeh_dev_check_failure(struct eeh_dev *edev)
 		pe->addr, pe->phb->global_number);
 	dump_stack();
 
+	eeh_send_failure_event(pe);
+
 	return 1;
 
 dn_unlock:
-- 
cgit 


From 353846fb8bb7d84986116a5be110eefed451af3c Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 10 Oct 2013 08:30:20 +0200
Subject: video: xilinxfb: Use standard variable name convention

s/op/pdev/ in xilinxfb_of_probe().
No functional chagnes.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/xilinxfb.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/video/xilinxfb.c b/drivers/video/xilinxfb.c
index 0e1dd3380a1e..d12345f7fca4 100644
--- a/drivers/video/xilinxfb.c
+++ b/drivers/video/xilinxfb.c
@@ -411,7 +411,7 @@ static int xilinxfb_release(struct device *dev)
  * OF bus binding
  */
 
-static int xilinxfb_of_probe(struct platform_device *op)
+static int xilinxfb_of_probe(struct platform_device *pdev)
 {
 	const u32 *prop;
 	u32 tft_access = 0;
@@ -425,7 +425,7 @@ static int xilinxfb_of_probe(struct platform_device *op)
 	/* Allocate the driver data region */
 	drvdata = kzalloc(sizeof(*drvdata), GFP_KERNEL);
 	if (!drvdata) {
-		dev_err(&op->dev, "Couldn't allocate device private record\n");
+		dev_err(&pdev->dev, "Couldn't allocate device private record\n");
 		return -ENOMEM;
 	}
 
@@ -433,7 +433,7 @@ static int xilinxfb_of_probe(struct platform_device *op)
 	 * To check whether the core is connected directly to DCR or BUS
 	 * interface and initialize the tft_access accordingly.
 	 */
-	of_property_read_u32(op->dev.of_node, "xlnx,dcr-splb-slave-if",
+	of_property_read_u32(pdev->dev.of_node, "xlnx,dcr-splb-slave-if",
 			     &tft_access);
 
 	/*
@@ -457,29 +457,29 @@ static int xilinxfb_of_probe(struct platform_device *op)
 	}
 #endif
 
-	prop = of_get_property(op->dev.of_node, "phys-size", &size);
+	prop = of_get_property(pdev->dev.of_node, "phys-size", &size);
 	if ((prop) && (size >= sizeof(u32)*2)) {
 		pdata.screen_width_mm = prop[0];
 		pdata.screen_height_mm = prop[1];
 	}
 
-	prop = of_get_property(op->dev.of_node, "resolution", &size);
+	prop = of_get_property(pdev->dev.of_node, "resolution", &size);
 	if ((prop) && (size >= sizeof(u32)*2)) {
 		pdata.xres = prop[0];
 		pdata.yres = prop[1];
 	}
 
-	prop = of_get_property(op->dev.of_node, "virtual-resolution", &size);
+	prop = of_get_property(pdev->dev.of_node, "virtual-resolution", &size);
 	if ((prop) && (size >= sizeof(u32)*2)) {
 		pdata.xvirt = prop[0];
 		pdata.yvirt = prop[1];
 	}
 
-	if (of_find_property(op->dev.of_node, "rotate-display", NULL))
+	if (of_find_property(pdev->dev.of_node, "rotate-display", NULL))
 		pdata.rotate_screen = 1;
 
-	dev_set_drvdata(&op->dev, drvdata);
-	return xilinxfb_assign(op, drvdata, &pdata);
+	dev_set_drvdata(&pdev->dev, drvdata);
+	return xilinxfb_assign(pdev, drvdata, &pdata);
 }
 
 static int xilinxfb_of_remove(struct platform_device *op)
-- 
cgit 


From 5c128df7471a6917f84cde3cea786541aaa404a2 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 10 Oct 2013 08:30:21 +0200
Subject: video: xilinxfb: Use devm_kzalloc instead of kzalloc

Simplify driver probe and release function.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/xilinxfb.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/video/xilinxfb.c b/drivers/video/xilinxfb.c
index d12345f7fca4..c420328afb40 100644
--- a/drivers/video/xilinxfb.c
+++ b/drivers/video/xilinxfb.c
@@ -368,8 +368,6 @@ err_fbmem:
 		devm_iounmap(dev, drvdata->regs);
 
 err_region:
-	kfree(drvdata);
-
 	return rc;
 }
 
@@ -402,8 +400,6 @@ static int xilinxfb_release(struct device *dev)
 		dcr_unmap(drvdata->dcr_host, drvdata->dcr_len);
 #endif
 
-	kfree(drvdata);
-
 	return 0;
 }
 
@@ -423,11 +419,9 @@ static int xilinxfb_of_probe(struct platform_device *pdev)
 	pdata = xilinx_fb_default_pdata;
 
 	/* Allocate the driver data region */
-	drvdata = kzalloc(sizeof(*drvdata), GFP_KERNEL);
-	if (!drvdata) {
-		dev_err(&pdev->dev, "Couldn't allocate device private record\n");
+	drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL);
+	if (!drvdata)
 		return -ENOMEM;
-	}
 
 	/*
 	 * To check whether the core is connected directly to DCR or BUS
@@ -451,7 +445,6 @@ static int xilinxfb_of_probe(struct platform_device *pdev)
 		drvdata->dcr_host = dcr_map(op->dev.of_node, start, drvdata->dcr_len);
 		if (!DCR_MAP_OK(drvdata->dcr_host)) {
 			dev_err(&op->dev, "invalid DCR address\n");
-			kfree(drvdata);
 			return -ENODEV;
 		}
 	}
-- 
cgit 


From 718b90ac4c21c81f42b6db062ca0867f3cac7648 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 10 Oct 2013 08:30:22 +0200
Subject: video: xilinxfb: Simplify error path

devm_iounmap is called automatically that's why remove it from the code
dev_set_drvdata(dev, NULL) is called by generic code
after device_release or on probe failure.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/xilinxfb.c | 24 ++++++------------------
 1 file changed, 6 insertions(+), 18 deletions(-)

diff --git a/drivers/video/xilinxfb.c b/drivers/video/xilinxfb.c
index c420328afb40..9eedf9673b7f 100644
--- a/drivers/video/xilinxfb.c
+++ b/drivers/video/xilinxfb.c
@@ -260,10 +260,9 @@ static int xilinxfb_assign(struct platform_device *pdev,
 
 		res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 		drvdata->regs = devm_ioremap_resource(&pdev->dev, res);
-		if (IS_ERR(drvdata->regs)) {
-			rc = PTR_ERR(drvdata->regs);
-			goto err_region;
-		}
+		if (IS_ERR(drvdata->regs))
+			return PTR_ERR(drvdata->regs);
+
 		drvdata->regs_phys = res->start;
 	}
 
@@ -279,11 +278,7 @@ static int xilinxfb_assign(struct platform_device *pdev,
 
 	if (!drvdata->fb_virt) {
 		dev_err(dev, "Could not allocate frame buffer memory\n");
-		rc = -ENOMEM;
-		if (drvdata->flags & BUS_ACCESS_FLAG)
-			goto err_fbmem;
-		else
-			goto err_region;
+		return -ENOMEM;
 	}
 
 	/* Clear (turn to black) the framebuffer */
@@ -363,11 +358,6 @@ err_cmap:
 	/* Turn off the display */
 	xilinx_fb_out32(drvdata, REG_CTRL, 0);
 
-err_fbmem:
-	if (drvdata->flags & BUS_ACCESS_FLAG)
-		devm_iounmap(dev, drvdata->regs);
-
-err_region:
 	return rc;
 }
 
@@ -392,11 +382,9 @@ static int xilinxfb_release(struct device *dev)
 	/* Turn off the display */
 	xilinx_fb_out32(drvdata, REG_CTRL, 0);
 
-	/* Release the resources, as allocated based on interface */
-	if (drvdata->flags & BUS_ACCESS_FLAG)
-		devm_iounmap(dev, drvdata->regs);
 #ifdef CONFIG_PPC_DCR
-	else
+	/* Release the resources, as allocated based on interface */
+	if (!(drvdata->flags & BUS_ACCESS_FLAG))
 		dcr_unmap(drvdata->dcr_host, drvdata->dcr_len);
 #endif
 
-- 
cgit 


From 81fcfb813fe99c30f77dd3ed9a4e541d14a9ed01 Mon Sep 17 00:00:00 2001
From: Alexey Kardashevskiy <aik@ozlabs.ru>
Date: Wed, 28 Aug 2013 18:37:39 +1000
Subject: hashtable: add hash_for_each_possible_rcu_notrace()

This adds hash_for_each_possible_rcu_notrace() which is basically
a notrace clone of hash_for_each_possible_rcu() which cannot be
used in real mode due to its tracing/debugging capability.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 include/linux/hashtable.h | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/include/linux/hashtable.h b/include/linux/hashtable.h
index a9df51f5d54c..519b6e2d769e 100644
--- a/include/linux/hashtable.h
+++ b/include/linux/hashtable.h
@@ -173,6 +173,21 @@ static inline void hash_del_rcu(struct hlist_node *node)
 	hlist_for_each_entry_rcu(obj, &name[hash_min(key, HASH_BITS(name))],\
 		member)
 
+/**
+ * hash_for_each_possible_rcu_notrace - iterate over all possible objects hashing
+ * to the same bucket in an rcu enabled hashtable in a rcu enabled hashtable
+ * @name: hashtable to iterate
+ * @obj: the type * to use as a loop cursor for each entry
+ * @member: the name of the hlist_node within the struct
+ * @key: the key of the objects to iterate over
+ *
+ * This is the same as hash_for_each_possible_rcu() except that it does
+ * not do any RCU debugging or tracing.
+ */
+#define hash_for_each_possible_rcu_notrace(name, obj, member, key) \
+	hlist_for_each_entry_rcu_notrace(obj, \
+		&name[hash_min(key, HASH_BITS(name))], member)
+
 /**
  * hash_for_each_possible_safe - iterate over all possible objects hashing to the
  * same bucket safe against removals
-- 
cgit 


From 8e0861fa3c4edfc2f30dd4cf4d58d3929f7c1b23 Mon Sep 17 00:00:00 2001
From: Alexey Kardashevskiy <aik@ozlabs.ru>
Date: Wed, 28 Aug 2013 18:37:42 +1000
Subject: powerpc: Prepare to support kernel handling of IOMMU map/unmap

The current VFIO-on-POWER implementation supports only user mode
driven mapping, i.e. QEMU is sending requests to map/unmap pages.
However this approach is really slow, so we want to move that to KVM.
Since H_PUT_TCE can be extremely performance sensitive (especially with
network adapters where each packet needs to be mapped/unmapped) we chose
to implement that as a "fast" hypercall directly in "real
mode" (processor still in the guest context but MMU off).

To be able to do that, we need to provide some facilities to
access the struct page count within that real mode environment as things
like the sparsemem vmemmap mappings aren't accessible.

This adds an API function realmode_pfn_to_page() to get page struct when
MMU is off.

This adds to MM a new function put_page_unless_one() which drops a page
if counter is bigger than 1. It is going to be used when MMU is off
(for example, real mode on PPC64) and we want to make sure that page
release will not happen in real mode as it may crash the kernel in
a horrible way.

CONFIG_SPARSEMEM_VMEMMAP and CONFIG_FLATMEM are supported.

Cc: linux-mm@kvack.org
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/pgtable-ppc64.h |  2 ++
 arch/powerpc/mm/init_64.c                | 51 +++++++++++++++++++++++++++++++-
 include/linux/mm.h                       | 14 +++++++++
 include/linux/page-flags.h               |  4 ++-
 4 files changed, 69 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/include/asm/pgtable-ppc64.h b/arch/powerpc/include/asm/pgtable-ppc64.h
index 46db09414a10..4a191c472867 100644
--- a/arch/powerpc/include/asm/pgtable-ppc64.h
+++ b/arch/powerpc/include/asm/pgtable-ppc64.h
@@ -394,6 +394,8 @@ static inline void mark_hpte_slot_valid(unsigned char *hpte_slot_array,
 	hpte_slot_array[index] = hidx << 4 | 0x1 << 3;
 }
 
+struct page *realmode_pfn_to_page(unsigned long pfn);
+
 static inline char *get_hpte_slot_array(pmd_t *pmdp)
 {
 	/*
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index 8ed035d2edb5..e3734edffa69 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -304,5 +304,54 @@ void register_page_bootmem_memmap(unsigned long section_nr,
 				  struct page *start_page, unsigned long size)
 {
 }
-#endif /* CONFIG_SPARSEMEM_VMEMMAP */
 
+/*
+ * We do not have access to the sparsemem vmemmap, so we fallback to
+ * walking the list of sparsemem blocks which we already maintain for
+ * the sake of crashdump. In the long run, we might want to maintain
+ * a tree if performance of that linear walk becomes a problem.
+ *
+ * realmode_pfn_to_page functions can fail due to:
+ * 1) As real sparsemem blocks do not lay in RAM continously (they
+ * are in virtual address space which is not available in the real mode),
+ * the requested page struct can be split between blocks so get_page/put_page
+ * may fail.
+ * 2) When huge pages are used, the get_page/put_page API will fail
+ * in real mode as the linked addresses in the page struct are virtual
+ * too.
+ */
+struct page *realmode_pfn_to_page(unsigned long pfn)
+{
+	struct vmemmap_backing *vmem_back;
+	struct page *page;
+	unsigned long page_size = 1 << mmu_psize_defs[mmu_vmemmap_psize].shift;
+	unsigned long pg_va = (unsigned long) pfn_to_page(pfn);
+
+	for (vmem_back = vmemmap_list; vmem_back; vmem_back = vmem_back->list) {
+		if (pg_va < vmem_back->virt_addr)
+			continue;
+
+		/* Check that page struct is not split between real pages */
+		if ((pg_va + sizeof(struct page)) >
+				(vmem_back->virt_addr + page_size))
+			return NULL;
+
+		page = (struct page *) (vmem_back->phys + pg_va -
+				vmem_back->virt_addr);
+		return page;
+	}
+
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(realmode_pfn_to_page);
+
+#elif defined(CONFIG_FLATMEM)
+
+struct page *realmode_pfn_to_page(unsigned long pfn)
+{
+	struct page *page = pfn_to_page(pfn);
+	return page;
+}
+EXPORT_SYMBOL_GPL(realmode_pfn_to_page);
+
+#endif /* CONFIG_SPARSEMEM_VMEMMAP/CONFIG_FLATMEM */
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 8b6e55ee8855..1a0668e5a4ee 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -297,12 +297,26 @@ static inline int put_page_testzero(struct page *page)
 /*
  * Try to grab a ref unless the page has a refcount of zero, return false if
  * that is the case.
+ * This can be called when MMU is off so it must not access
+ * any of the virtual mappings.
  */
 static inline int get_page_unless_zero(struct page *page)
 {
 	return atomic_inc_not_zero(&page->_count);
 }
 
+/*
+ * Try to drop a ref unless the page has a refcount of one, return false if
+ * that is the case.
+ * This is to make sure that the refcount won't become zero after this drop.
+ * This can be called when MMU is off so it must not access
+ * any of the virtual mappings.
+ */
+static inline int put_page_unless_one(struct page *page)
+{
+	return atomic_add_unless(&page->_count, -1, 1);
+}
+
 extern int page_is_ram(unsigned long pfn);
 
 /* Support for virtually mapped pages */
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 6d53675c2b54..98ada58f9942 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -329,7 +329,9 @@ static inline void set_page_writeback(struct page *page)
  * System with lots of page flags available. This allows separate
  * flags for PageHead() and PageTail() checks of compound pages so that bit
  * tests can be used in performance sensitive paths. PageCompound is
- * generally not used in hot code paths.
+ * generally not used in hot code paths except arch/powerpc/mm/init_64.c
+ * and arch/powerpc/kvm/book3s_64_vio_hv.c which use it to detect huge pages
+ * and avoid handling those in real mode.
  */
 __PAGEFLAG(Head, head) CLEARPAGEFLAG(Head, head)
 __PAGEFLAG(Tail, tail)
-- 
cgit 


From 8e0a1611cb891e72a9affc4a8ee4795c634896a6 Mon Sep 17 00:00:00 2001
From: Alexey Kardashevskiy <aik@ozlabs.ru>
Date: Wed, 28 Aug 2013 18:37:43 +1000
Subject: powerpc: add real mode support for dma operations on powernv

The existing TCE machine calls (tce_build and tce_free) only support
virtual mode as they call __raw_writeq for TCE invalidation what
fails in real mode.

This introduces tce_build_rm and tce_free_rm real mode versions
which do mostly the same but use "Store Doubleword Caching Inhibited
Indexed" instruction for TCE invalidation.

This new feature is going to be utilized by real mode support of VFIO.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/machdep.h        | 12 ++++++++
 arch/powerpc/platforms/powernv/pci-ioda.c | 49 +++++++++++++++++++++++--------
 arch/powerpc/platforms/powernv/pci.c      | 42 ++++++++++++++++++++++----
 arch/powerpc/platforms/powernv/pci.h      |  3 +-
 4 files changed, 87 insertions(+), 19 deletions(-)

diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h
index 8b480901165a..07dd3b1312e5 100644
--- a/arch/powerpc/include/asm/machdep.h
+++ b/arch/powerpc/include/asm/machdep.h
@@ -78,6 +78,18 @@ struct machdep_calls {
 				    long index);
 	void		(*tce_flush)(struct iommu_table *tbl);
 
+	/* _rm versions are for real mode use only */
+	int		(*tce_build_rm)(struct iommu_table *tbl,
+				     long index,
+				     long npages,
+				     unsigned long uaddr,
+				     enum dma_data_direction direction,
+				     struct dma_attrs *attrs);
+	void		(*tce_free_rm)(struct iommu_table *tbl,
+				    long index,
+				    long npages);
+	void		(*tce_flush_rm)(struct iommu_table *tbl);
+
 	void __iomem *	(*ioremap)(phys_addr_t addr, unsigned long size,
 				   unsigned long flags, void *caller);
 	void		(*iounmap)(volatile void __iomem *token);
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 74a5a5773b1f..307015d9cd99 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -70,6 +70,16 @@ define_pe_printk_level(pe_err, KERN_ERR);
 define_pe_printk_level(pe_warn, KERN_WARNING);
 define_pe_printk_level(pe_info, KERN_INFO);
 
+/*
+ * stdcix is only supposed to be used in hypervisor real mode as per
+ * the architecture spec
+ */
+static inline void __raw_rm_writeq(u64 val, volatile void __iomem *paddr)
+{
+	__asm__ __volatile__("stdcix %0,0,%1"
+		: : "r" (val), "r" (paddr) : "memory");
+}
+
 static int pnv_ioda_alloc_pe(struct pnv_phb *phb)
 {
 	unsigned long pe;
@@ -454,10 +464,13 @@ static void pnv_ioda_setup_bus_dma(struct pnv_ioda_pe *pe, struct pci_bus *bus)
 	}
 }
 
-static void pnv_pci_ioda1_tce_invalidate(struct iommu_table *tbl,
-					 u64 *startp, u64 *endp)
+static void pnv_pci_ioda1_tce_invalidate(struct pnv_ioda_pe *pe,
+					 struct iommu_table *tbl,
+					 u64 *startp, u64 *endp, bool rm)
 {
-	u64 __iomem *invalidate = (u64 __iomem *)tbl->it_index;
+	u64 __iomem *invalidate = rm ?
+		(u64 __iomem *)pe->tce_inval_reg_phys :
+		(u64 __iomem *)tbl->it_index;
 	unsigned long start, end, inc;
 
 	start = __pa(startp);
@@ -484,7 +497,10 @@ static void pnv_pci_ioda1_tce_invalidate(struct iommu_table *tbl,
 
         mb(); /* Ensure above stores are visible */
         while (start <= end) {
-                __raw_writeq(start, invalidate);
+		if (rm)
+			__raw_rm_writeq(start, invalidate);
+		else
+			__raw_writeq(start, invalidate);
                 start += inc;
         }
 
@@ -496,10 +512,12 @@ static void pnv_pci_ioda1_tce_invalidate(struct iommu_table *tbl,
 
 static void pnv_pci_ioda2_tce_invalidate(struct pnv_ioda_pe *pe,
 					 struct iommu_table *tbl,
-					 u64 *startp, u64 *endp)
+					 u64 *startp, u64 *endp, bool rm)
 {
 	unsigned long start, end, inc;
-	u64 __iomem *invalidate = (u64 __iomem *)tbl->it_index;
+	u64 __iomem *invalidate = rm ?
+		(u64 __iomem *)pe->tce_inval_reg_phys :
+		(u64 __iomem *)tbl->it_index;
 
 	/* We'll invalidate DMA address in PE scope */
 	start = 0x2ul << 60;
@@ -515,22 +533,25 @@ static void pnv_pci_ioda2_tce_invalidate(struct pnv_ioda_pe *pe,
 	mb();
 
 	while (start <= end) {
-		__raw_writeq(start, invalidate);
+		if (rm)
+			__raw_rm_writeq(start, invalidate);
+		else
+			__raw_writeq(start, invalidate);
 		start += inc;
 	}
 }
 
 void pnv_pci_ioda_tce_invalidate(struct iommu_table *tbl,
-				 u64 *startp, u64 *endp)
+				 u64 *startp, u64 *endp, bool rm)
 {
 	struct pnv_ioda_pe *pe = container_of(tbl, struct pnv_ioda_pe,
 					      tce32_table);
 	struct pnv_phb *phb = pe->phb;
 
 	if (phb->type == PNV_PHB_IODA1)
-		pnv_pci_ioda1_tce_invalidate(tbl, startp, endp);
+		pnv_pci_ioda1_tce_invalidate(pe, tbl, startp, endp, rm);
 	else
-		pnv_pci_ioda2_tce_invalidate(pe, tbl, startp, endp);
+		pnv_pci_ioda2_tce_invalidate(pe, tbl, startp, endp, rm);
 }
 
 static void pnv_pci_ioda_setup_dma_pe(struct pnv_phb *phb,
@@ -603,7 +624,9 @@ static void pnv_pci_ioda_setup_dma_pe(struct pnv_phb *phb,
 		 * bus number, print that out instead.
 		 */
 		tbl->it_busno = 0;
-		tbl->it_index = (unsigned long)ioremap(be64_to_cpup(swinvp), 8);
+		pe->tce_inval_reg_phys = be64_to_cpup(swinvp);
+		tbl->it_index = (unsigned long)ioremap(pe->tce_inval_reg_phys,
+				8);
 		tbl->it_type = TCE_PCI_SWINV_CREATE | TCE_PCI_SWINV_FREE |
 			       TCE_PCI_SWINV_PAIR;
 	}
@@ -681,7 +704,9 @@ static void pnv_pci_ioda2_setup_dma_pe(struct pnv_phb *phb,
 		 * bus number, print that out instead.
 		 */
 		tbl->it_busno = 0;
-		tbl->it_index = (unsigned long)ioremap(be64_to_cpup(swinvp), 8);
+		pe->tce_inval_reg_phys = be64_to_cpup(swinvp);
+		tbl->it_index = (unsigned long)ioremap(pe->tce_inval_reg_phys,
+				8);
 		tbl->it_type = TCE_PCI_SWINV_CREATE | TCE_PCI_SWINV_FREE;
 	}
 	iommu_init_table(tbl, phb->hose->node);
diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index a28d3b5e6393..420abe3baab9 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -401,7 +401,7 @@ struct pci_ops pnv_pci_ops = {
 
 static int pnv_tce_build(struct iommu_table *tbl, long index, long npages,
 			 unsigned long uaddr, enum dma_data_direction direction,
-			 struct dma_attrs *attrs)
+			 struct dma_attrs *attrs, bool rm)
 {
 	u64 proto_tce;
 	u64 *tcep, *tces;
@@ -423,12 +423,22 @@ static int pnv_tce_build(struct iommu_table *tbl, long index, long npages,
 	 * of flags if that becomes the case
 	 */
 	if (tbl->it_type & TCE_PCI_SWINV_CREATE)
-		pnv_pci_ioda_tce_invalidate(tbl, tces, tcep - 1);
+		pnv_pci_ioda_tce_invalidate(tbl, tces, tcep - 1, rm);
 
 	return 0;
 }
 
-static void pnv_tce_free(struct iommu_table *tbl, long index, long npages)
+static int pnv_tce_build_vm(struct iommu_table *tbl, long index, long npages,
+			    unsigned long uaddr,
+			    enum dma_data_direction direction,
+			    struct dma_attrs *attrs)
+{
+	return pnv_tce_build(tbl, index, npages, uaddr, direction, attrs,
+			false);
+}
+
+static void pnv_tce_free(struct iommu_table *tbl, long index, long npages,
+		bool rm)
 {
 	u64 *tcep, *tces;
 
@@ -438,7 +448,12 @@ static void pnv_tce_free(struct iommu_table *tbl, long index, long npages)
 		*(tcep++) = 0;
 
 	if (tbl->it_type & TCE_PCI_SWINV_FREE)
-		pnv_pci_ioda_tce_invalidate(tbl, tces, tcep - 1);
+		pnv_pci_ioda_tce_invalidate(tbl, tces, tcep - 1, rm);
+}
+
+static void pnv_tce_free_vm(struct iommu_table *tbl, long index, long npages)
+{
+	pnv_tce_free(tbl, index, npages, false);
 }
 
 static unsigned long pnv_tce_get(struct iommu_table *tbl, long index)
@@ -446,6 +461,19 @@ static unsigned long pnv_tce_get(struct iommu_table *tbl, long index)
 	return ((u64 *)tbl->it_base)[index - tbl->it_offset];
 }
 
+static int pnv_tce_build_rm(struct iommu_table *tbl, long index, long npages,
+			    unsigned long uaddr,
+			    enum dma_data_direction direction,
+			    struct dma_attrs *attrs)
+{
+	return pnv_tce_build(tbl, index, npages, uaddr, direction, attrs, true);
+}
+
+static void pnv_tce_free_rm(struct iommu_table *tbl, long index, long npages)
+{
+	pnv_tce_free(tbl, index, npages, true);
+}
+
 void pnv_pci_setup_iommu_table(struct iommu_table *tbl,
 			       void *tce_mem, u64 tce_size,
 			       u64 dma_offset)
@@ -610,8 +638,10 @@ void __init pnv_pci_init(void)
 
 	/* Configure IOMMU DMA hooks */
 	ppc_md.pci_dma_dev_setup = pnv_pci_dma_dev_setup;
-	ppc_md.tce_build = pnv_tce_build;
-	ppc_md.tce_free = pnv_tce_free;
+	ppc_md.tce_build = pnv_tce_build_vm;
+	ppc_md.tce_free = pnv_tce_free_vm;
+	ppc_md.tce_build_rm = pnv_tce_build_rm;
+	ppc_md.tce_free_rm = pnv_tce_free_rm;
 	ppc_md.tce_get = pnv_tce_get;
 	ppc_md.pci_probe_mode = pnv_pci_probe_mode;
 	set_pci_dma_ops(&dma_iommu_ops);
diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h
index d633c64e05a1..170dd98629d7 100644
--- a/arch/powerpc/platforms/powernv/pci.h
+++ b/arch/powerpc/platforms/powernv/pci.h
@@ -52,6 +52,7 @@ struct pnv_ioda_pe {
 	int			tce32_seg;
 	int			tce32_segcount;
 	struct iommu_table	tce32_table;
+	phys_addr_t		tce_inval_reg_phys;
 
 	/* XXX TODO: Add support for additional 64-bit iommus */
 
@@ -193,6 +194,6 @@ extern void pnv_pci_init_p5ioc2_hub(struct device_node *np);
 extern void pnv_pci_init_ioda_hub(struct device_node *np);
 extern void pnv_pci_init_ioda2_phb(struct device_node *np);
 extern void pnv_pci_ioda_tce_invalidate(struct iommu_table *tbl,
-					u64 *startp, u64 *endp);
+					u64 *startp, u64 *endp, bool rm);
 
 #endif /* __POWERNV_PCI_H */
-- 
cgit 


From de79f7b9f6f92ec1bd6f61fa1f20de60728a5b5e Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Tue, 10 Sep 2013 20:20:42 +1000
Subject: powerpc: Put FP/VSX and VR state into structures

This creates new 'thread_fp_state' and 'thread_vr_state' structures
to store FP/VSX state (including FPSCR) and Altivec/VSX state
(including VSCR), and uses them in the thread_struct.  In the
thread_fp_state, the FPRs and VSRs are represented as u64 rather
than double, since we rarely perform floating-point computations
on the values, and this will enable the structures to be used
in KVM code as well.  Similarly FPSCR is now a u64 rather than
a structure of two 32-bit values.

This takes the offsets out of the macros such as SAVE_32FPRS,
REST_32FPRS, etc.  This enables the same macros to be used for normal
and transactional state, enabling us to delete the transactional
versions of the macros.   This also removes the unused do_load_up_fpu
and do_load_up_altivec, which were in fact buggy since they didn't
create large enough stack frames to account for the fact that
load_up_fpu and load_up_altivec are not designed to be called from C
and assume that their caller's stack frame is an interrupt frame.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/ppc_asm.h     | 95 +++-------------------------------
 arch/powerpc/include/asm/processor.h   | 40 +++++++-------
 arch/powerpc/include/asm/sfp-machine.h |  2 +-
 arch/powerpc/kernel/align.c            |  6 +--
 arch/powerpc/kernel/asm-offsets.c      | 25 +++------
 arch/powerpc/kernel/fpu.S              | 59 +++++----------------
 arch/powerpc/kernel/process.c          |  8 ++-
 arch/powerpc/kernel/ptrace.c           | 49 +++++++++---------
 arch/powerpc/kernel/ptrace32.c         | 11 ++--
 arch/powerpc/kernel/signal_32.c        | 72 +++++++++++++-------------
 arch/powerpc/kernel/signal_64.c        | 29 ++++++-----
 arch/powerpc/kernel/tm.S               | 41 ++++++++-------
 arch/powerpc/kernel/traps.c            | 10 ++--
 arch/powerpc/kernel/vecemu.c           |  6 +--
 arch/powerpc/kernel/vector.S           | 50 ++++++------------
 arch/powerpc/kvm/book3s_pr.c           | 36 ++++++-------
 arch/powerpc/kvm/booke.c               | 19 ++++---
 17 files changed, 200 insertions(+), 358 deletions(-)

diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h
index 599545738af3..140f67090f0b 100644
--- a/arch/powerpc/include/asm/ppc_asm.h
+++ b/arch/powerpc/include/asm/ppc_asm.h
@@ -98,123 +98,40 @@ END_FW_FTR_SECTION_IFSET(FW_FEATURE_SPLPAR)
 #define REST_8GPRS(n, base)	REST_4GPRS(n, base); REST_4GPRS(n+4, base)
 #define REST_10GPRS(n, base)	REST_8GPRS(n, base); REST_2GPRS(n+8, base)
 
-#define SAVE_FPR(n, base)	stfd	n,THREAD_FPR0+8*TS_FPRWIDTH*(n)(base)
+#define SAVE_FPR(n, base)	stfd	n,8*TS_FPRWIDTH*(n)(base)
 #define SAVE_2FPRS(n, base)	SAVE_FPR(n, base); SAVE_FPR(n+1, base)
 #define SAVE_4FPRS(n, base)	SAVE_2FPRS(n, base); SAVE_2FPRS(n+2, base)
 #define SAVE_8FPRS(n, base)	SAVE_4FPRS(n, base); SAVE_4FPRS(n+4, base)
 #define SAVE_16FPRS(n, base)	SAVE_8FPRS(n, base); SAVE_8FPRS(n+8, base)
 #define SAVE_32FPRS(n, base)	SAVE_16FPRS(n, base); SAVE_16FPRS(n+16, base)
-#define REST_FPR(n, base)	lfd	n,THREAD_FPR0+8*TS_FPRWIDTH*(n)(base)
+#define REST_FPR(n, base)	lfd	n,8*TS_FPRWIDTH*(n)(base)
 #define REST_2FPRS(n, base)	REST_FPR(n, base); REST_FPR(n+1, base)
 #define REST_4FPRS(n, base)	REST_2FPRS(n, base); REST_2FPRS(n+2, base)
 #define REST_8FPRS(n, base)	REST_4FPRS(n, base); REST_4FPRS(n+4, base)
 #define REST_16FPRS(n, base)	REST_8FPRS(n, base); REST_8FPRS(n+8, base)
 #define REST_32FPRS(n, base)	REST_16FPRS(n, base); REST_16FPRS(n+16, base)
 
-#define SAVE_VR(n,b,base)	li b,THREAD_VR0+(16*(n));  stvx n,base,b
+#define SAVE_VR(n,b,base)	li b,16*(n);  stvx n,base,b
 #define SAVE_2VRS(n,b,base)	SAVE_VR(n,b,base); SAVE_VR(n+1,b,base)
 #define SAVE_4VRS(n,b,base)	SAVE_2VRS(n,b,base); SAVE_2VRS(n+2,b,base)
 #define SAVE_8VRS(n,b,base)	SAVE_4VRS(n,b,base); SAVE_4VRS(n+4,b,base)
 #define SAVE_16VRS(n,b,base)	SAVE_8VRS(n,b,base); SAVE_8VRS(n+8,b,base)
 #define SAVE_32VRS(n,b,base)	SAVE_16VRS(n,b,base); SAVE_16VRS(n+16,b,base)
-#define REST_VR(n,b,base)	li b,THREAD_VR0+(16*(n)); lvx n,base,b
+#define REST_VR(n,b,base)	li b,16*(n); lvx n,base,b
 #define REST_2VRS(n,b,base)	REST_VR(n,b,base); REST_VR(n+1,b,base)
 #define REST_4VRS(n,b,base)	REST_2VRS(n,b,base); REST_2VRS(n+2,b,base)
 #define REST_8VRS(n,b,base)	REST_4VRS(n,b,base); REST_4VRS(n+4,b,base)
 #define REST_16VRS(n,b,base)	REST_8VRS(n,b,base); REST_8VRS(n+8,b,base)
 #define REST_32VRS(n,b,base)	REST_16VRS(n,b,base); REST_16VRS(n+16,b,base)
 
-/* Save/restore FPRs, VRs and VSRs from their checkpointed backups in
- * thread_struct:
- */
-#define SAVE_FPR_TRANSACT(n, base)	stfd n,THREAD_TRANSACT_FPR0+	\
-					8*TS_FPRWIDTH*(n)(base)
-#define SAVE_2FPRS_TRANSACT(n, base)	SAVE_FPR_TRANSACT(n, base);	\
-					SAVE_FPR_TRANSACT(n+1, base)
-#define SAVE_4FPRS_TRANSACT(n, base)	SAVE_2FPRS_TRANSACT(n, base);	\
-					SAVE_2FPRS_TRANSACT(n+2, base)
-#define SAVE_8FPRS_TRANSACT(n, base)	SAVE_4FPRS_TRANSACT(n, base);	\
-					SAVE_4FPRS_TRANSACT(n+4, base)
-#define SAVE_16FPRS_TRANSACT(n, base)	SAVE_8FPRS_TRANSACT(n, base);	\
-					SAVE_8FPRS_TRANSACT(n+8, base)
-#define SAVE_32FPRS_TRANSACT(n, base)	SAVE_16FPRS_TRANSACT(n, base);	\
-					SAVE_16FPRS_TRANSACT(n+16, base)
-
-#define REST_FPR_TRANSACT(n, base)	lfd	n,THREAD_TRANSACT_FPR0+	\
-					8*TS_FPRWIDTH*(n)(base)
-#define REST_2FPRS_TRANSACT(n, base)	REST_FPR_TRANSACT(n, base);	\
-					REST_FPR_TRANSACT(n+1, base)
-#define REST_4FPRS_TRANSACT(n, base)	REST_2FPRS_TRANSACT(n, base);	\
-					REST_2FPRS_TRANSACT(n+2, base)
-#define REST_8FPRS_TRANSACT(n, base)	REST_4FPRS_TRANSACT(n, base);	\
-					REST_4FPRS_TRANSACT(n+4, base)
-#define REST_16FPRS_TRANSACT(n, base)	REST_8FPRS_TRANSACT(n, base);	\
-					REST_8FPRS_TRANSACT(n+8, base)
-#define REST_32FPRS_TRANSACT(n, base)	REST_16FPRS_TRANSACT(n, base);	\
-					REST_16FPRS_TRANSACT(n+16, base)
-
-
-#define SAVE_VR_TRANSACT(n,b,base)	li b,THREAD_TRANSACT_VR0+(16*(n)); \
-					stvx n,b,base
-#define SAVE_2VRS_TRANSACT(n,b,base)	SAVE_VR_TRANSACT(n,b,base);	\
-					SAVE_VR_TRANSACT(n+1,b,base)
-#define SAVE_4VRS_TRANSACT(n,b,base)	SAVE_2VRS_TRANSACT(n,b,base);	\
-					SAVE_2VRS_TRANSACT(n+2,b,base)
-#define SAVE_8VRS_TRANSACT(n,b,base)	SAVE_4VRS_TRANSACT(n,b,base);	\
-					SAVE_4VRS_TRANSACT(n+4,b,base)
-#define SAVE_16VRS_TRANSACT(n,b,base)	SAVE_8VRS_TRANSACT(n,b,base);	\
-					SAVE_8VRS_TRANSACT(n+8,b,base)
-#define SAVE_32VRS_TRANSACT(n,b,base)	SAVE_16VRS_TRANSACT(n,b,base);	\
-					SAVE_16VRS_TRANSACT(n+16,b,base)
-
-#define REST_VR_TRANSACT(n,b,base)	li b,THREAD_TRANSACT_VR0+(16*(n)); \
-					lvx n,b,base
-#define REST_2VRS_TRANSACT(n,b,base)	REST_VR_TRANSACT(n,b,base);	\
-					REST_VR_TRANSACT(n+1,b,base)
-#define REST_4VRS_TRANSACT(n,b,base)	REST_2VRS_TRANSACT(n,b,base);	\
-					REST_2VRS_TRANSACT(n+2,b,base)
-#define REST_8VRS_TRANSACT(n,b,base)	REST_4VRS_TRANSACT(n,b,base);	\
-					REST_4VRS_TRANSACT(n+4,b,base)
-#define REST_16VRS_TRANSACT(n,b,base)	REST_8VRS_TRANSACT(n,b,base);	\
-					REST_8VRS_TRANSACT(n+8,b,base)
-#define REST_32VRS_TRANSACT(n,b,base)	REST_16VRS_TRANSACT(n,b,base);	\
-					REST_16VRS_TRANSACT(n+16,b,base)
-
-
-#define SAVE_VSR_TRANSACT(n,b,base)	li b,THREAD_TRANSACT_VSR0+(16*(n)); \
-					STXVD2X(n,R##base,R##b)
-#define SAVE_2VSRS_TRANSACT(n,b,base)	SAVE_VSR_TRANSACT(n,b,base);	\
-	                                SAVE_VSR_TRANSACT(n+1,b,base)
-#define SAVE_4VSRS_TRANSACT(n,b,base)	SAVE_2VSRS_TRANSACT(n,b,base);	\
-	                                SAVE_2VSRS_TRANSACT(n+2,b,base)
-#define SAVE_8VSRS_TRANSACT(n,b,base)	SAVE_4VSRS_TRANSACT(n,b,base);	\
-	                                SAVE_4VSRS_TRANSACT(n+4,b,base)
-#define SAVE_16VSRS_TRANSACT(n,b,base)	SAVE_8VSRS_TRANSACT(n,b,base);	\
-	                                SAVE_8VSRS_TRANSACT(n+8,b,base)
-#define SAVE_32VSRS_TRANSACT(n,b,base)	SAVE_16VSRS_TRANSACT(n,b,base);	\
-	                                SAVE_16VSRS_TRANSACT(n+16,b,base)
-
-#define REST_VSR_TRANSACT(n,b,base)	li b,THREAD_TRANSACT_VSR0+(16*(n)); \
-					LXVD2X(n,R##base,R##b)
-#define REST_2VSRS_TRANSACT(n,b,base)	REST_VSR_TRANSACT(n,b,base);    \
-	                                REST_VSR_TRANSACT(n+1,b,base)
-#define REST_4VSRS_TRANSACT(n,b,base)	REST_2VSRS_TRANSACT(n,b,base);	\
-	                                REST_2VSRS_TRANSACT(n+2,b,base)
-#define REST_8VSRS_TRANSACT(n,b,base)	REST_4VSRS_TRANSACT(n,b,base);	\
-	                                REST_4VSRS_TRANSACT(n+4,b,base)
-#define REST_16VSRS_TRANSACT(n,b,base)	REST_8VSRS_TRANSACT(n,b,base);	\
-	                                REST_8VSRS_TRANSACT(n+8,b,base)
-#define REST_32VSRS_TRANSACT(n,b,base)	REST_16VSRS_TRANSACT(n,b,base);	\
-	                                REST_16VSRS_TRANSACT(n+16,b,base)
-
 /* Save the lower 32 VSRs in the thread VSR region */
-#define SAVE_VSR(n,b,base)	li b,THREAD_VSR0+(16*(n));  STXVD2X(n,R##base,R##b)
+#define SAVE_VSR(n,b,base)	li b,16*(n);  STXVD2X(n,R##base,R##b)
 #define SAVE_2VSRS(n,b,base)	SAVE_VSR(n,b,base); SAVE_VSR(n+1,b,base)
 #define SAVE_4VSRS(n,b,base)	SAVE_2VSRS(n,b,base); SAVE_2VSRS(n+2,b,base)
 #define SAVE_8VSRS(n,b,base)	SAVE_4VSRS(n,b,base); SAVE_4VSRS(n+4,b,base)
 #define SAVE_16VSRS(n,b,base)	SAVE_8VSRS(n,b,base); SAVE_8VSRS(n+8,b,base)
 #define SAVE_32VSRS(n,b,base)	SAVE_16VSRS(n,b,base); SAVE_16VSRS(n+16,b,base)
-#define REST_VSR(n,b,base)	li b,THREAD_VSR0+(16*(n)); LXVD2X(n,R##base,R##b)
+#define REST_VSR(n,b,base)	li b,16*(n); LXVD2X(n,R##base,R##b)
 #define REST_2VSRS(n,b,base)	REST_VSR(n,b,base); REST_VSR(n+1,b,base)
 #define REST_4VSRS(n,b,base)	REST_2VSRS(n,b,base); REST_2VSRS(n+2,b,base)
 #define REST_8VSRS(n,b,base)	REST_4VSRS(n,b,base); REST_4VSRS(n+4,b,base)
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h
index ce4de5aed7b5..afe695e9feb8 100644
--- a/arch/powerpc/include/asm/processor.h
+++ b/arch/powerpc/include/asm/processor.h
@@ -144,8 +144,20 @@ typedef struct {
 
 #define TS_FPROFFSET 0
 #define TS_VSRLOWOFFSET 1
-#define TS_FPR(i) fpr[i][TS_FPROFFSET]
-#define TS_TRANS_FPR(i) transact_fpr[i][TS_FPROFFSET]
+#define TS_FPR(i) fp_state.fpr[i][TS_FPROFFSET]
+#define TS_TRANS_FPR(i) transact_fp.fpr[i][TS_FPROFFSET]
+
+/* FP and VSX 0-31 register set */
+struct thread_fp_state {
+	u64	fpr[32][TS_FPRWIDTH] __attribute__((aligned(16)));
+	u64	fpscr;		/* Floating point status */
+};
+
+/* Complete AltiVec register set including VSCR */
+struct thread_vr_state {
+	vector128	vr[32] __attribute__((aligned(16)));
+	vector128	vscr __attribute__((aligned(16)));
+};
 
 struct thread_struct {
 	unsigned long	ksp;		/* Kernel stack pointer */
@@ -198,13 +210,7 @@ struct thread_struct {
 	unsigned long	dvc2;
 #endif
 #endif
-	/* FP and VSX 0-31 register set */
-	double		fpr[32][TS_FPRWIDTH] __attribute__((aligned(16)));
-	struct {
-
-		unsigned int pad;
-		unsigned int val;	/* Floating point status */
-	} fpscr;
+	struct thread_fp_state	fp_state;
 	int		fpexc_mode;	/* floating-point exception mode */
 	unsigned int	align_ctl;	/* alignment handling control */
 #ifdef CONFIG_PPC64
@@ -222,10 +228,7 @@ struct thread_struct {
 	struct arch_hw_breakpoint hw_brk; /* info on the hardware breakpoint */
 	unsigned long	trap_nr;	/* last trap # on this thread */
 #ifdef CONFIG_ALTIVEC
-	/* Complete AltiVec register set */
-	vector128	vr[32] __attribute__((aligned(16)));
-	/* AltiVec status */
-	vector128	vscr __attribute__((aligned(16)));
+	struct thread_vr_state vr_state;
 	unsigned long	vrsave;
 	int		used_vr;	/* set if process has used altivec */
 #endif /* CONFIG_ALTIVEC */
@@ -262,13 +265,8 @@ struct thread_struct {
 	 * transact_fpr[] is the new set of transactional values.
 	 * VRs work the same way.
 	 */
-	double		transact_fpr[32][TS_FPRWIDTH];
-	struct {
-		unsigned int pad;
-		unsigned int val;	/* Floating point status */
-	} transact_fpscr;
-	vector128	transact_vr[32] __attribute__((aligned(16)));
-	vector128	transact_vscr __attribute__((aligned(16)));
+	struct thread_fp_state transact_fp;
+	struct thread_vr_state transact_vr;
 	unsigned long	transact_vrsave;
 #endif /* CONFIG_PPC_TRANSACTIONAL_MEM */
 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
@@ -322,8 +320,6 @@ struct thread_struct {
 	.ksp = INIT_SP, \
 	.regs = (struct pt_regs *)INIT_SP - 1, /* XXX bogus, I think */ \
 	.fs = KERNEL_DS, \
-	.fpr = {{0}}, \
-	.fpscr = { .val = 0, }, \
 	.fpexc_mode = 0, \
 	.ppr = INIT_PPR, \
 }
diff --git a/arch/powerpc/include/asm/sfp-machine.h b/arch/powerpc/include/asm/sfp-machine.h
index 3a7a67a0d006..d89beaba26ff 100644
--- a/arch/powerpc/include/asm/sfp-machine.h
+++ b/arch/powerpc/include/asm/sfp-machine.h
@@ -125,7 +125,7 @@
 #define FP_EX_DIVZERO         (1 << (31 - 5))
 #define FP_EX_INEXACT         (1 << (31 - 6))
 
-#define __FPU_FPSCR	(current->thread.fpscr.val)
+#define __FPU_FPSCR	(current->thread.fp_state.fpscr)
 
 /* We only actually write to the destination register
  * if exceptions signalled (if any) will not trap.
diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index a27ccd5dc6b9..eaa16bc17e9d 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -660,7 +660,7 @@ static int emulate_vsx(unsigned char __user *addr, unsigned int reg,
 	if (reg < 32)
 		ptr = (char *) &current->thread.TS_FPR(reg);
 	else
-		ptr = (char *) &current->thread.vr[reg - 32];
+		ptr = (char *) &current->thread.vr_state.vr[reg - 32];
 
 	lptr = (unsigned long *) ptr;
 
@@ -897,7 +897,7 @@ int fix_alignment(struct pt_regs *regs)
 				return -EFAULT;
 		}
 	} else if (flags & F) {
-		data.dd = current->thread.TS_FPR(reg);
+		data.ll = current->thread.TS_FPR(reg);
 		if (flags & S) {
 			/* Single-precision FP store requires conversion... */
 #ifdef CONFIG_PPC_FPU
@@ -975,7 +975,7 @@ int fix_alignment(struct pt_regs *regs)
 		if (unlikely(ret))
 			return -EFAULT;
 	} else if (flags & F)
-		current->thread.TS_FPR(reg) = data.dd;
+		current->thread.TS_FPR(reg) = data.ll;
 	else
 		regs->gpr[reg] = data.ll;
 
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 502c7a4e73f7..8d27b61c95b9 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -90,16 +90,15 @@ int main(void)
 	DEFINE(THREAD_NORMSAVES, offsetof(struct thread_struct, normsave[0]));
 #endif
 	DEFINE(THREAD_FPEXC_MODE, offsetof(struct thread_struct, fpexc_mode));
-	DEFINE(THREAD_FPR0, offsetof(struct thread_struct, fpr[0]));
-	DEFINE(THREAD_FPSCR, offsetof(struct thread_struct, fpscr));
+	DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fp_state));
+	DEFINE(FPSTATE_FPSCR, offsetof(struct thread_fp_state, fpscr));
 #ifdef CONFIG_ALTIVEC
-	DEFINE(THREAD_VR0, offsetof(struct thread_struct, vr[0]));
+	DEFINE(THREAD_VRSTATE, offsetof(struct thread_struct, vr_state));
 	DEFINE(THREAD_VRSAVE, offsetof(struct thread_struct, vrsave));
-	DEFINE(THREAD_VSCR, offsetof(struct thread_struct, vscr));
 	DEFINE(THREAD_USED_VR, offsetof(struct thread_struct, used_vr));
+	DEFINE(VRSTATE_VSCR, offsetof(struct thread_vr_state, vscr));
 #endif /* CONFIG_ALTIVEC */
 #ifdef CONFIG_VSX
-	DEFINE(THREAD_VSR0, offsetof(struct thread_struct, fpr));
 	DEFINE(THREAD_USED_VSR, offsetof(struct thread_struct, used_vsr));
 #endif /* CONFIG_VSX */
 #ifdef CONFIG_PPC64
@@ -143,20 +142,12 @@ int main(void)
 	DEFINE(THREAD_TM_PPR, offsetof(struct thread_struct, tm_ppr));
 	DEFINE(THREAD_TM_DSCR, offsetof(struct thread_struct, tm_dscr));
 	DEFINE(PT_CKPT_REGS, offsetof(struct thread_struct, ckpt_regs));
-	DEFINE(THREAD_TRANSACT_VR0, offsetof(struct thread_struct,
-					 transact_vr[0]));
-	DEFINE(THREAD_TRANSACT_VSCR, offsetof(struct thread_struct,
-					  transact_vscr));
+	DEFINE(THREAD_TRANSACT_VRSTATE, offsetof(struct thread_struct,
+						 transact_vr));
 	DEFINE(THREAD_TRANSACT_VRSAVE, offsetof(struct thread_struct,
 					    transact_vrsave));
-	DEFINE(THREAD_TRANSACT_FPR0, offsetof(struct thread_struct,
-					  transact_fpr[0]));
-	DEFINE(THREAD_TRANSACT_FPSCR, offsetof(struct thread_struct,
-					   transact_fpscr));
-#ifdef CONFIG_VSX
-	DEFINE(THREAD_TRANSACT_VSR0, offsetof(struct thread_struct,
-					  transact_fpr[0]));
-#endif
+	DEFINE(THREAD_TRANSACT_FPSTATE, offsetof(struct thread_struct,
+						 transact_fp));
 	/* Local pt_regs on stack for Transactional Memory funcs. */
 	DEFINE(TM_FRAME_SIZE, STACK_FRAME_OVERHEAD +
 	       sizeof(struct pt_regs) + 16);
diff --git a/arch/powerpc/kernel/fpu.S b/arch/powerpc/kernel/fpu.S
index caeaabf11a2f..34b96e6d2f0d 100644
--- a/arch/powerpc/kernel/fpu.S
+++ b/arch/powerpc/kernel/fpu.S
@@ -35,15 +35,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX);					\
 2:	REST_32VSRS(n,c,base);						\
 3:
 
-#define __REST_32FPVSRS_TRANSACT(n,c,base)				\
-BEGIN_FTR_SECTION							\
-	b	2f;							\
-END_FTR_SECTION_IFSET(CPU_FTR_VSX);					\
-	REST_32FPRS_TRANSACT(n,base);					\
-	b	3f;							\
-2:	REST_32VSRS_TRANSACT(n,c,base);					\
-3:
-
 #define __SAVE_32FPVSRS(n,c,base)					\
 BEGIN_FTR_SECTION							\
 	b	2f;							\
@@ -54,40 +45,12 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX);					\
 3:
 #else
 #define __REST_32FPVSRS(n,b,base)	REST_32FPRS(n, base)
-#define __REST_32FPVSRS_TRANSACT(n,b,base)	REST_32FPRS(n, base)
 #define __SAVE_32FPVSRS(n,b,base)	SAVE_32FPRS(n, base)
 #endif
 #define REST_32FPVSRS(n,c,base) __REST_32FPVSRS(n,__REG_##c,__REG_##base)
-#define REST_32FPVSRS_TRANSACT(n,c,base) \
-	__REST_32FPVSRS_TRANSACT(n,__REG_##c,__REG_##base)
 #define SAVE_32FPVSRS(n,c,base) __SAVE_32FPVSRS(n,__REG_##c,__REG_##base)
 
 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
-/*
- * Wrapper to call load_up_fpu from C.
- * void do_load_up_fpu(struct pt_regs *regs);
- */
-_GLOBAL(do_load_up_fpu)
-	mflr	r0
-	std	r0, 16(r1)
-	stdu	r1, -112(r1)
-
-	subi	r6, r3, STACK_FRAME_OVERHEAD
-	/* load_up_fpu expects r12=MSR, r13=PACA, and returns
-	 * with r12 = new MSR.
-	 */
-	ld	r12,_MSR(r6)
-	GET_PACA(r13)
-
-	bl	load_up_fpu
-	std	r12,_MSR(r6)
-
-	ld	r0, 112+16(r1)
-	addi	r1, r1, 112
-	mtlr	r0
-	blr
-
-
 /* void do_load_up_transact_fpu(struct thread_struct *thread)
  *
  * This is similar to load_up_fpu but for the transactional version of the FP
@@ -105,9 +68,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX)
 	SYNC
 	MTMSRD(r5)
 
-	lfd	fr0,THREAD_TRANSACT_FPSCR(r3)
+	addi	r7,r3,THREAD_TRANSACT_FPSTATE
+	lfd	fr0,FPSTATE_FPSCR(r7)
 	MTFSF_L(fr0)
-	REST_32FPVSRS_TRANSACT(0, R4, R3)
+	REST_32FPVSRS(0, R4, R7)
 
 	/* FP/VSX off again */
 	MTMSRD(r6)
@@ -147,9 +111,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX)
 	beq	1f
 	toreal(r4)
 	addi	r4,r4,THREAD		/* want last_task_used_math->thread */
-	SAVE_32FPVSRS(0, R5, R4)
+	addi	r8,r4,THREAD_FPSTATE
+	SAVE_32FPVSRS(0, R5, R8)
 	mffs	fr0
-	stfd	fr0,THREAD_FPSCR(r4)
+	stfd	fr0,FPSTATE_FPSCR(r8)
 	PPC_LL	r5,PT_REGS(r4)
 	toreal(r5)
 	PPC_LL	r4,_MSR-STACK_FRAME_OVERHEAD(r5)
@@ -160,7 +125,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX)
 #endif /* CONFIG_SMP */
 	/* enable use of FP after return */
 #ifdef CONFIG_PPC32
-	mfspr	r5,SPRN_SPRG_THREAD		/* current task's THREAD (phys) */
+	mfspr	r5,SPRN_SPRG_THREAD	/* current task's THREAD (phys) */
 	lwz	r4,THREAD_FPEXC_MODE(r5)
 	ori	r9,r9,MSR_FP		/* enable FP for current */
 	or	r9,r9,r4
@@ -172,9 +137,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX)
 	or	r12,r12,r4
 	std	r12,_MSR(r1)
 #endif
-	lfd	fr0,THREAD_FPSCR(r5)
+	addi	r7,r5,THREAD_FPSTATE
+	lfd	fr0,FPSTATE_FPSCR(r7)
 	MTFSF_L(fr0)
-	REST_32FPVSRS(0, R4, R5)
+	REST_32FPVSRS(0, R4, R7)
 #ifndef CONFIG_SMP
 	subi	r4,r5,THREAD
 	fromreal(r4)
@@ -208,9 +174,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX)
 	addi	r3,r3,THREAD	        /* want THREAD of task */
 	PPC_LL	r5,PT_REGS(r3)
 	PPC_LCMPI	0,r5,0
-	SAVE_32FPVSRS(0, R4 ,R3)
+	addi	r6,r3,THREAD_FPSTATE
+	SAVE_32FPVSRS(0, R4, R6)
 	mffs	fr0
-	stfd	fr0,THREAD_FPSCR(r3)
+	stfd	fr0,FPSTATE_FPSCR(r6)
 	beq	1f
 	PPC_LL	r4,_MSR-STACK_FRAME_OVERHEAD(r5)
 	li	r3,MSR_FP|MSR_FE0|MSR_FE1
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 96d2fdf3aa9e..7a281416affb 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1113,12 +1113,10 @@ void start_thread(struct pt_regs *regs, unsigned long start, unsigned long sp)
 #ifdef CONFIG_VSX
 	current->thread.used_vsr = 0;
 #endif
-	memset(current->thread.fpr, 0, sizeof(current->thread.fpr));
-	current->thread.fpscr.val = 0;
+	memset(&current->thread.fp_state, 0, sizeof(current->thread.fp_state));
 #ifdef CONFIG_ALTIVEC
-	memset(current->thread.vr, 0, sizeof(current->thread.vr));
-	memset(&current->thread.vscr, 0, sizeof(current->thread.vscr));
-	current->thread.vscr.u[3] = 0x00010000; /* Java mode disabled */
+	memset(&current->thread.vr_state, 0, sizeof(current->thread.vr_state));
+	current->thread.vr_state.vscr.u[3] = 0x00010000; /* Java mode disabled */
 	current->thread.vrsave = 0;
 	current->thread.used_vr = 0;
 #endif /* CONFIG_ALTIVEC */
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 9a0d24c390a3..238580043d85 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -362,7 +362,7 @@ static int fpr_get(struct task_struct *target, const struct user_regset *regset,
 		   void *kbuf, void __user *ubuf)
 {
 #ifdef CONFIG_VSX
-	double buf[33];
+	u64 buf[33];
 	int i;
 #endif
 	flush_fp_to_thread(target);
@@ -371,15 +371,15 @@ static int fpr_get(struct task_struct *target, const struct user_regset *regset,
 	/* copy to local buffer then write that out */
 	for (i = 0; i < 32 ; i++)
 		buf[i] = target->thread.TS_FPR(i);
-	memcpy(&buf[32], &target->thread.fpscr, sizeof(double));
+	buf[32] = target->thread.fp_state.fpscr;
 	return user_regset_copyout(&pos, &count, &kbuf, &ubuf, buf, 0, -1);
 
 #else
-	BUILD_BUG_ON(offsetof(struct thread_struct, fpscr) !=
-		     offsetof(struct thread_struct, TS_FPR(32)));
+	BUILD_BUG_ON(offsetof(struct thread_fp_state, fpscr) !=
+		     offsetof(struct thread_fp_state, fpr[32][0]));
 
 	return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
-				   &target->thread.fpr, 0, -1);
+				   &target->thread.fp_state, 0, -1);
 #endif
 }
 
@@ -388,7 +388,7 @@ static int fpr_set(struct task_struct *target, const struct user_regset *regset,
 		   const void *kbuf, const void __user *ubuf)
 {
 #ifdef CONFIG_VSX
-	double buf[33];
+	u64 buf[33];
 	int i;
 #endif
 	flush_fp_to_thread(target);
@@ -400,14 +400,14 @@ static int fpr_set(struct task_struct *target, const struct user_regset *regset,
 		return i;
 	for (i = 0; i < 32 ; i++)
 		target->thread.TS_FPR(i) = buf[i];
-	memcpy(&target->thread.fpscr, &buf[32], sizeof(double));
+	target->thread.fp_state.fpscr = buf[32];
 	return 0;
 #else
-	BUILD_BUG_ON(offsetof(struct thread_struct, fpscr) !=
-		     offsetof(struct thread_struct, TS_FPR(32)));
+	BUILD_BUG_ON(offsetof(struct thread_fp_state, fpscr) !=
+		     offsetof(struct thread_fp_state, fpr[32][0]));
 
 	return user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-				  &target->thread.fpr, 0, -1);
+				  &target->thread.fp_state, 0, -1);
 #endif
 }
 
@@ -440,11 +440,11 @@ static int vr_get(struct task_struct *target, const struct user_regset *regset,
 
 	flush_altivec_to_thread(target);
 
-	BUILD_BUG_ON(offsetof(struct thread_struct, vscr) !=
-		     offsetof(struct thread_struct, vr[32]));
+	BUILD_BUG_ON(offsetof(struct thread_vr_state, vscr) !=
+		     offsetof(struct thread_vr_state, vr[32]));
 
 	ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
-				  &target->thread.vr, 0,
+				  &target->thread.vr_state, 0,
 				  33 * sizeof(vector128));
 	if (!ret) {
 		/*
@@ -471,11 +471,12 @@ static int vr_set(struct task_struct *target, const struct user_regset *regset,
 
 	flush_altivec_to_thread(target);
 
-	BUILD_BUG_ON(offsetof(struct thread_struct, vscr) !=
-		     offsetof(struct thread_struct, vr[32]));
+	BUILD_BUG_ON(offsetof(struct thread_vr_state, vscr) !=
+		     offsetof(struct thread_vr_state, vr[32]));
 
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
-				 &target->thread.vr, 0, 33 * sizeof(vector128));
+				 &target->thread.vr_state, 0,
+				 33 * sizeof(vector128));
 	if (!ret && count > 0) {
 		/*
 		 * We use only the first word of vrsave.
@@ -514,13 +515,13 @@ static int vsr_get(struct task_struct *target, const struct user_regset *regset,
 		   unsigned int pos, unsigned int count,
 		   void *kbuf, void __user *ubuf)
 {
-	double buf[32];
+	u64 buf[32];
 	int ret, i;
 
 	flush_vsx_to_thread(target);
 
 	for (i = 0; i < 32 ; i++)
-		buf[i] = target->thread.fpr[i][TS_VSRLOWOFFSET];
+		buf[i] = target->thread.fp_state.fpr[i][TS_VSRLOWOFFSET];
 	ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
 				  buf, 0, 32 * sizeof(double));
 
@@ -531,7 +532,7 @@ static int vsr_set(struct task_struct *target, const struct user_regset *regset,
 		   unsigned int pos, unsigned int count,
 		   const void *kbuf, const void __user *ubuf)
 {
-	double buf[32];
+	u64 buf[32];
 	int ret,i;
 
 	flush_vsx_to_thread(target);
@@ -539,7 +540,7 @@ static int vsr_set(struct task_struct *target, const struct user_regset *regset,
 	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
 				 buf, 0, 32 * sizeof(double));
 	for (i = 0; i < 32 ; i++)
-		target->thread.fpr[i][TS_VSRLOWOFFSET] = buf[i];
+		target->thread.fp_state.fpr[i][TS_VSRLOWOFFSET] = buf[i];
 
 
 	return ret;
@@ -1554,10 +1555,10 @@ long arch_ptrace(struct task_struct *child, long request,
 
 			flush_fp_to_thread(child);
 			if (fpidx < (PT_FPSCR - PT_FPR0))
-				tmp = ((unsigned long *)child->thread.fpr)
+				tmp = ((unsigned long *)child->thread.fp_state.fpr)
 					[fpidx * TS_FPRWIDTH];
 			else
-				tmp = child->thread.fpscr.val;
+				tmp = child->thread.fp_state.fpscr;
 		}
 		ret = put_user(tmp, datalp);
 		break;
@@ -1587,10 +1588,10 @@ long arch_ptrace(struct task_struct *child, long request,
 
 			flush_fp_to_thread(child);
 			if (fpidx < (PT_FPSCR - PT_FPR0))
-				((unsigned long *)child->thread.fpr)
+				((unsigned long *)child->thread.fp_state.fpr)
 					[fpidx * TS_FPRWIDTH] = data;
 			else
-				child->thread.fpscr.val = data;
+				child->thread.fp_state.fpscr = data;
 			ret = 0;
 		}
 		break;
diff --git a/arch/powerpc/kernel/ptrace32.c b/arch/powerpc/kernel/ptrace32.c
index f51599e941c7..097f8dc426a0 100644
--- a/arch/powerpc/kernel/ptrace32.c
+++ b/arch/powerpc/kernel/ptrace32.c
@@ -43,7 +43,6 @@
 #define FPRNUMBER(i) (((i) - PT_FPR0) >> 1)
 #define FPRHALF(i) (((i) - PT_FPR0) & 1)
 #define FPRINDEX(i) TS_FPRWIDTH * FPRNUMBER(i) * 2 + FPRHALF(i)
-#define FPRINDEX_3264(i) (TS_FPRWIDTH * ((i) - PT_FPR0))
 
 long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 			compat_ulong_t caddr, compat_ulong_t cdata)
@@ -105,7 +104,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 			 * to be an array of unsigned int (32 bits) - the
 			 * index passed in is based on this assumption.
 			 */
-			tmp = ((unsigned int *)child->thread.fpr)
+			tmp = ((unsigned int *)child->thread.fp_state.fpr)
 				[FPRINDEX(index)];
 		}
 		ret = put_user((unsigned int)tmp, (u32 __user *)data);
@@ -147,8 +146,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 		if (numReg >= PT_FPR0) {
 			flush_fp_to_thread(child);
 			/* get 64 bit FPR */
-			tmp = ((u64 *)child->thread.fpr)
-				[FPRINDEX_3264(numReg)];
+			tmp = child->thread.fp_state.fpr[numReg - PT_FPR0][0];
 		} else { /* register within PT_REGS struct */
 			unsigned long tmp2;
 			ret = ptrace_get_reg(child, numReg, &tmp2);
@@ -207,7 +205,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 			 * to be an array of unsigned int (32 bits) - the
 			 * index passed in is based on this assumption.
 			 */
-			((unsigned int *)child->thread.fpr)
+			((unsigned int *)child->thread.fp_state.fpr)
 				[FPRINDEX(index)] = data;
 			ret = 0;
 		}
@@ -251,8 +249,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 			u64 *tmp;
 			flush_fp_to_thread(child);
 			/* get 64 bit FPR ... */
-			tmp = &(((u64 *)child->thread.fpr)
-				[FPRINDEX_3264(numReg)]);
+			tmp = &child->thread.fp_state.fpr[numReg - PT_FPR0][0];
 			/* ... write the 32 bit part we want */
 			((u32 *)tmp)[index % 2] = data;
 			ret = 0;
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index bebdf1a1a540..ea25e45ea959 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -265,27 +265,27 @@ struct rt_sigframe {
 unsigned long copy_fpr_to_user(void __user *to,
 			       struct task_struct *task)
 {
-	double buf[ELF_NFPREG];
+	u64 buf[ELF_NFPREG];
 	int i;
 
 	/* save FPR copy to local buffer then write to the thread_struct */
 	for (i = 0; i < (ELF_NFPREG - 1) ; i++)
 		buf[i] = task->thread.TS_FPR(i);
-	memcpy(&buf[i], &task->thread.fpscr, sizeof(double));
+	buf[i] = task->thread.fp_state.fpscr;
 	return __copy_to_user(to, buf, ELF_NFPREG * sizeof(double));
 }
 
 unsigned long copy_fpr_from_user(struct task_struct *task,
 				 void __user *from)
 {
-	double buf[ELF_NFPREG];
+	u64 buf[ELF_NFPREG];
 	int i;
 
 	if (__copy_from_user(buf, from, ELF_NFPREG * sizeof(double)))
 		return 1;
 	for (i = 0; i < (ELF_NFPREG - 1) ; i++)
 		task->thread.TS_FPR(i) = buf[i];
-	memcpy(&task->thread.fpscr, &buf[i], sizeof(double));
+	task->thread.fp_state.fpscr = buf[i];
 
 	return 0;
 }
@@ -293,25 +293,25 @@ unsigned long copy_fpr_from_user(struct task_struct *task,
 unsigned long copy_vsx_to_user(void __user *to,
 			       struct task_struct *task)
 {
-	double buf[ELF_NVSRHALFREG];
+	u64 buf[ELF_NVSRHALFREG];
 	int i;
 
 	/* save FPR copy to local buffer then write to the thread_struct */
 	for (i = 0; i < ELF_NVSRHALFREG; i++)
-		buf[i] = task->thread.fpr[i][TS_VSRLOWOFFSET];
+		buf[i] = task->thread.fp_state.fpr[i][TS_VSRLOWOFFSET];
 	return __copy_to_user(to, buf, ELF_NVSRHALFREG * sizeof(double));
 }
 
 unsigned long copy_vsx_from_user(struct task_struct *task,
 				 void __user *from)
 {
-	double buf[ELF_NVSRHALFREG];
+	u64 buf[ELF_NVSRHALFREG];
 	int i;
 
 	if (__copy_from_user(buf, from, ELF_NVSRHALFREG * sizeof(double)))
 		return 1;
 	for (i = 0; i < ELF_NVSRHALFREG ; i++)
-		task->thread.fpr[i][TS_VSRLOWOFFSET] = buf[i];
+		task->thread.fp_state.fpr[i][TS_VSRLOWOFFSET] = buf[i];
 	return 0;
 }
 
@@ -319,27 +319,27 @@ unsigned long copy_vsx_from_user(struct task_struct *task,
 unsigned long copy_transact_fpr_to_user(void __user *to,
 				  struct task_struct *task)
 {
-	double buf[ELF_NFPREG];
+	u64 buf[ELF_NFPREG];
 	int i;
 
 	/* save FPR copy to local buffer then write to the thread_struct */
 	for (i = 0; i < (ELF_NFPREG - 1) ; i++)
 		buf[i] = task->thread.TS_TRANS_FPR(i);
-	memcpy(&buf[i], &task->thread.transact_fpscr, sizeof(double));
+	buf[i] = task->thread.transact_fp.fpscr;
 	return __copy_to_user(to, buf, ELF_NFPREG * sizeof(double));
 }
 
 unsigned long copy_transact_fpr_from_user(struct task_struct *task,
 					  void __user *from)
 {
-	double buf[ELF_NFPREG];
+	u64 buf[ELF_NFPREG];
 	int i;
 
 	if (__copy_from_user(buf, from, ELF_NFPREG * sizeof(double)))
 		return 1;
 	for (i = 0; i < (ELF_NFPREG - 1) ; i++)
 		task->thread.TS_TRANS_FPR(i) = buf[i];
-	memcpy(&task->thread.transact_fpscr, &buf[i], sizeof(double));
+	task->thread.transact_fp.fpscr = buf[i];
 
 	return 0;
 }
@@ -347,25 +347,25 @@ unsigned long copy_transact_fpr_from_user(struct task_struct *task,
 unsigned long copy_transact_vsx_to_user(void __user *to,
 				  struct task_struct *task)
 {
-	double buf[ELF_NVSRHALFREG];
+	u64 buf[ELF_NVSRHALFREG];
 	int i;
 
 	/* save FPR copy to local buffer then write to the thread_struct */
 	for (i = 0; i < ELF_NVSRHALFREG; i++)
-		buf[i] = task->thread.transact_fpr[i][TS_VSRLOWOFFSET];
+		buf[i] = task->thread.transact_fp.fpr[i][TS_VSRLOWOFFSET];
 	return __copy_to_user(to, buf, ELF_NVSRHALFREG * sizeof(double));
 }
 
 unsigned long copy_transact_vsx_from_user(struct task_struct *task,
 					  void __user *from)
 {
-	double buf[ELF_NVSRHALFREG];
+	u64 buf[ELF_NVSRHALFREG];
 	int i;
 
 	if (__copy_from_user(buf, from, ELF_NVSRHALFREG * sizeof(double)))
 		return 1;
 	for (i = 0; i < ELF_NVSRHALFREG ; i++)
-		task->thread.transact_fpr[i][TS_VSRLOWOFFSET] = buf[i];
+		task->thread.transact_fp.fpr[i][TS_VSRLOWOFFSET] = buf[i];
 	return 0;
 }
 #endif /* CONFIG_PPC_TRANSACTIONAL_MEM */
@@ -373,14 +373,14 @@ unsigned long copy_transact_vsx_from_user(struct task_struct *task,
 inline unsigned long copy_fpr_to_user(void __user *to,
 				      struct task_struct *task)
 {
-	return __copy_to_user(to, task->thread.fpr,
+	return __copy_to_user(to, task->thread.fp_state.fpr,
 			      ELF_NFPREG * sizeof(double));
 }
 
 inline unsigned long copy_fpr_from_user(struct task_struct *task,
 					void __user *from)
 {
-	return __copy_from_user(task->thread.fpr, from,
+	return __copy_from_user(task->thread.fp_state.fpr, from,
 			      ELF_NFPREG * sizeof(double));
 }
 
@@ -388,14 +388,14 @@ inline unsigned long copy_fpr_from_user(struct task_struct *task,
 inline unsigned long copy_transact_fpr_to_user(void __user *to,
 					 struct task_struct *task)
 {
-	return __copy_to_user(to, task->thread.transact_fpr,
+	return __copy_to_user(to, task->thread.transact_fp.fpr,
 			      ELF_NFPREG * sizeof(double));
 }
 
 inline unsigned long copy_transact_fpr_from_user(struct task_struct *task,
 						 void __user *from)
 {
-	return __copy_from_user(task->thread.transact_fpr, from,
+	return __copy_from_user(task->thread.transact_fp.fpr, from,
 				ELF_NFPREG * sizeof(double));
 }
 #endif /* CONFIG_PPC_TRANSACTIONAL_MEM */
@@ -423,7 +423,7 @@ static int save_user_regs(struct pt_regs *regs, struct mcontext __user *frame,
 	/* save altivec registers */
 	if (current->thread.used_vr) {
 		flush_altivec_to_thread(current);
-		if (__copy_to_user(&frame->mc_vregs, current->thread.vr,
+		if (__copy_to_user(&frame->mc_vregs, &current->thread.vr_state,
 				   ELF_NVRREG * sizeof(vector128)))
 			return 1;
 		/* set MSR_VEC in the saved MSR value to indicate that
@@ -534,17 +534,17 @@ static int save_tm_user_regs(struct pt_regs *regs,
 	/* save altivec registers */
 	if (current->thread.used_vr) {
 		flush_altivec_to_thread(current);
-		if (__copy_to_user(&frame->mc_vregs, current->thread.vr,
+		if (__copy_to_user(&frame->mc_vregs, &current->thread.vr_state,
 				   ELF_NVRREG * sizeof(vector128)))
 			return 1;
 		if (msr & MSR_VEC) {
 			if (__copy_to_user(&tm_frame->mc_vregs,
-					   current->thread.transact_vr,
+					   &current->thread.transact_vr,
 					   ELF_NVRREG * sizeof(vector128)))
 				return 1;
 		} else {
 			if (__copy_to_user(&tm_frame->mc_vregs,
-					   current->thread.vr,
+					   &current->thread.vr_state,
 					   ELF_NVRREG * sizeof(vector128)))
 				return 1;
 		}
@@ -692,11 +692,12 @@ static long restore_user_regs(struct pt_regs *regs,
 	regs->msr &= ~MSR_VEC;
 	if (msr & MSR_VEC) {
 		/* restore altivec registers from the stack */
-		if (__copy_from_user(current->thread.vr, &sr->mc_vregs,
+		if (__copy_from_user(&current->thread.vr_state, &sr->mc_vregs,
 				     sizeof(sr->mc_vregs)))
 			return 1;
 	} else if (current->thread.used_vr)
-		memset(current->thread.vr, 0, ELF_NVRREG * sizeof(vector128));
+		memset(&current->thread.vr_state, 0,
+		       ELF_NVRREG * sizeof(vector128));
 
 	/* Always get VRSAVE back */
 	if (__get_user(current->thread.vrsave, (u32 __user *)&sr->mc_vregs[32]))
@@ -722,7 +723,7 @@ static long restore_user_regs(struct pt_regs *regs,
 			return 1;
 	} else if (current->thread.used_vsr)
 		for (i = 0; i < 32 ; i++)
-			current->thread.fpr[i][TS_VSRLOWOFFSET] = 0;
+			current->thread.fp_state.fpr[i][TS_VSRLOWOFFSET] = 0;
 #endif /* CONFIG_VSX */
 	/*
 	 * force the process to reload the FP registers from
@@ -798,15 +799,16 @@ static long restore_tm_user_regs(struct pt_regs *regs,
 	regs->msr &= ~MSR_VEC;
 	if (msr & MSR_VEC) {
 		/* restore altivec registers from the stack */
-		if (__copy_from_user(current->thread.vr, &sr->mc_vregs,
+		if (__copy_from_user(&current->thread.vr_state, &sr->mc_vregs,
 				     sizeof(sr->mc_vregs)) ||
-		    __copy_from_user(current->thread.transact_vr,
+		    __copy_from_user(&current->thread.transact_vr,
 				     &tm_sr->mc_vregs,
 				     sizeof(sr->mc_vregs)))
 			return 1;
 	} else if (current->thread.used_vr) {
-		memset(current->thread.vr, 0, ELF_NVRREG * sizeof(vector128));
-		memset(current->thread.transact_vr, 0,
+		memset(&current->thread.vr_state, 0,
+		       ELF_NVRREG * sizeof(vector128));
+		memset(&current->thread.transact_vr, 0,
 		       ELF_NVRREG * sizeof(vector128));
 	}
 
@@ -838,8 +840,8 @@ static long restore_tm_user_regs(struct pt_regs *regs,
 			return 1;
 	} else if (current->thread.used_vsr)
 		for (i = 0; i < 32 ; i++) {
-			current->thread.fpr[i][TS_VSRLOWOFFSET] = 0;
-			current->thread.transact_fpr[i][TS_VSRLOWOFFSET] = 0;
+			current->thread.fp_state.fpr[i][TS_VSRLOWOFFSET] = 0;
+			current->thread.transact_fp.fpr[i][TS_VSRLOWOFFSET] = 0;
 		}
 #endif /* CONFIG_VSX */
 
@@ -1030,7 +1032,7 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
 		if (__put_user(0, &rt_sf->uc.uc_link))
 			goto badframe;
 
-	current->thread.fpscr.val = 0;	/* turn off all fp exceptions */
+	current->thread.fp_state.fpscr = 0;	/* turn off all fp exceptions */
 
 	/* create a stack frame for the caller of the handler */
 	newsp = ((unsigned long)rt_sf) - (__SIGNAL_FRAMESIZE + 16);
@@ -1462,7 +1464,7 @@ int handle_signal32(unsigned long sig, struct k_sigaction *ka,
 
 	regs->link = tramp;
 
-	current->thread.fpscr.val = 0;	/* turn off all fp exceptions */
+	current->thread.fp_state.fpscr = 0;	/* turn off all fp exceptions */
 
 	/* create a stack frame for the caller of the handler */
 	newsp = ((unsigned long)frame) - __SIGNAL_FRAMESIZE;
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index f93ec2835a13..a3c1ed4b979c 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -103,7 +103,8 @@ static long setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
 	if (current->thread.used_vr) {
 		flush_altivec_to_thread(current);
 		/* Copy 33 vec registers (vr0..31 and vscr) to the stack */
-		err |= __copy_to_user(v_regs, current->thread.vr, 33 * sizeof(vector128));
+		err |= __copy_to_user(v_regs, &current->thread.vr_state,
+				      33 * sizeof(vector128));
 		/* set MSR_VEC in the MSR value in the frame to indicate that sc->v_reg)
 		 * contains valid data.
 		 */
@@ -195,18 +196,18 @@ static long setup_tm_sigcontexts(struct sigcontext __user *sc,
 	if (current->thread.used_vr) {
 		flush_altivec_to_thread(current);
 		/* Copy 33 vec registers (vr0..31 and vscr) to the stack */
-		err |= __copy_to_user(v_regs, current->thread.vr,
+		err |= __copy_to_user(v_regs, &current->thread.vr_state,
 				      33 * sizeof(vector128));
 		/* If VEC was enabled there are transactional VRs valid too,
 		 * else they're a copy of the checkpointed VRs.
 		 */
 		if (msr & MSR_VEC)
 			err |= __copy_to_user(tm_v_regs,
-					      current->thread.transact_vr,
+					      &current->thread.transact_vr,
 					      33 * sizeof(vector128));
 		else
 			err |= __copy_to_user(tm_v_regs,
-					      current->thread.vr,
+					      &current->thread.vr_state,
 					      33 * sizeof(vector128));
 
 		/* set MSR_VEC in the MSR value in the frame to indicate
@@ -349,10 +350,10 @@ static long restore_sigcontext(struct pt_regs *regs, sigset_t *set, int sig,
 		return -EFAULT;
 	/* Copy 33 vec registers (vr0..31 and vscr) from the stack */
 	if (v_regs != NULL && (msr & MSR_VEC) != 0)
-		err |= __copy_from_user(current->thread.vr, v_regs,
+		err |= __copy_from_user(&current->thread.vr_state, v_regs,
 					33 * sizeof(vector128));
 	else if (current->thread.used_vr)
-		memset(current->thread.vr, 0, 33 * sizeof(vector128));
+		memset(&current->thread.vr_state, 0, 33 * sizeof(vector128));
 	/* Always get VRSAVE back */
 	if (v_regs != NULL)
 		err |= __get_user(current->thread.vrsave, (u32 __user *)&v_regs[33]);
@@ -374,7 +375,7 @@ static long restore_sigcontext(struct pt_regs *regs, sigset_t *set, int sig,
 		err |= copy_vsx_from_user(current, v_regs);
 	else
 		for (i = 0; i < 32 ; i++)
-			current->thread.fpr[i][TS_VSRLOWOFFSET] = 0;
+			current->thread.fp_state.fpr[i][TS_VSRLOWOFFSET] = 0;
 #endif
 	return err;
 }
@@ -468,14 +469,14 @@ static long restore_tm_sigcontexts(struct pt_regs *regs,
 		return -EFAULT;
 	/* Copy 33 vec registers (vr0..31 and vscr) from the stack */
 	if (v_regs != NULL && tm_v_regs != NULL && (msr & MSR_VEC) != 0) {
-		err |= __copy_from_user(current->thread.vr, v_regs,
+		err |= __copy_from_user(&current->thread.vr_state, v_regs,
 					33 * sizeof(vector128));
-		err |= __copy_from_user(current->thread.transact_vr, tm_v_regs,
+		err |= __copy_from_user(&current->thread.transact_vr, tm_v_regs,
 					33 * sizeof(vector128));
 	}
 	else if (current->thread.used_vr) {
-		memset(current->thread.vr, 0, 33 * sizeof(vector128));
-		memset(current->thread.transact_vr, 0, 33 * sizeof(vector128));
+		memset(&current->thread.vr_state, 0, 33 * sizeof(vector128));
+		memset(&current->thread.transact_vr, 0, 33 * sizeof(vector128));
 	}
 	/* Always get VRSAVE back */
 	if (v_regs != NULL && tm_v_regs != NULL) {
@@ -507,8 +508,8 @@ static long restore_tm_sigcontexts(struct pt_regs *regs,
 		err |= copy_transact_vsx_from_user(current, tm_v_regs);
 	} else {
 		for (i = 0; i < 32 ; i++) {
-			current->thread.fpr[i][TS_VSRLOWOFFSET] = 0;
-			current->thread.transact_fpr[i][TS_VSRLOWOFFSET] = 0;
+			current->thread.fp_state.fpr[i][TS_VSRLOWOFFSET] = 0;
+			current->thread.transact_fp.fpr[i][TS_VSRLOWOFFSET] = 0;
 		}
 	}
 #endif
@@ -747,7 +748,7 @@ int handle_rt_signal64(int signr, struct k_sigaction *ka, siginfo_t *info,
 		goto badframe;
 
 	/* Make sure signal handler doesn't get spurious FP exceptions */
-	current->thread.fpscr.val = 0;
+	current->thread.fp_state.fpscr = 0;
 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 	/* Remove TM bits from thread's MSR.  The MSR in the sigcontext
 	 * just indicates to userland that we were doing a transaction, but we
diff --git a/arch/powerpc/kernel/tm.S b/arch/powerpc/kernel/tm.S
index cd809eaa8b5c..761af4f0a632 100644
--- a/arch/powerpc/kernel/tm.S
+++ b/arch/powerpc/kernel/tm.S
@@ -12,16 +12,15 @@
 #include <asm/reg.h>
 
 #ifdef CONFIG_VSX
-/* See fpu.S, this is very similar but to save/restore checkpointed FPRs/VSRs */
-#define __SAVE_32FPRS_VSRS_TRANSACT(n,c,base)	\
+/* See fpu.S, this is borrowed from there */
+#define __SAVE_32FPRS_VSRS(n,c,base)		\
 BEGIN_FTR_SECTION				\
 	b	2f;				\
 END_FTR_SECTION_IFSET(CPU_FTR_VSX);		\
-	SAVE_32FPRS_TRANSACT(n,base);		\
+	SAVE_32FPRS(n,base);			\
 	b	3f;				\
-2:	SAVE_32VSRS_TRANSACT(n,c,base);		\
+2:	SAVE_32VSRS(n,c,base);			\
 3:
-/* ...and this is just plain borrowed from there. */
 #define __REST_32FPRS_VSRS(n,c,base)		\
 BEGIN_FTR_SECTION				\
 	b	2f;				\
@@ -31,11 +30,11 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX);		\
 2:	REST_32VSRS(n,c,base);			\
 3:
 #else
-#define __SAVE_32FPRS_VSRS_TRANSACT(n,c,base) SAVE_32FPRS_TRANSACT(n, base)
-#define __REST_32FPRS_VSRS(n,c,base)	      REST_32FPRS(n, base)
+#define __SAVE_32FPRS_VSRS(n,c,base)	SAVE_32FPRS(n, base)
+#define __REST_32FPRS_VSRS(n,c,base)	REST_32FPRS(n, base)
 #endif
-#define SAVE_32FPRS_VSRS_TRANSACT(n,c,base) \
-	__SAVE_32FPRS_VSRS_TRANSACT(n,__REG_##c,__REG_##base)
+#define SAVE_32FPRS_VSRS(n,c,base) \
+	__SAVE_32FPRS_VSRS(n,__REG_##c,__REG_##base)
 #define REST_32FPRS_VSRS(n,c,base) \
 	__REST_32FPRS_VSRS(n,__REG_##c,__REG_##base)
 
@@ -157,10 +156,11 @@ _GLOBAL(tm_reclaim)
 	andis.		r0, r4, MSR_VEC@h
 	beq	dont_backup_vec
 
-	SAVE_32VRS_TRANSACT(0, r6, r3)	/* r6 scratch, r3 thread */
+	addi	r7, r3, THREAD_TRANSACT_VRSTATE
+	SAVE_32VRS(0, r6, r7)	/* r6 scratch, r7 transact vr state */
 	mfvscr	vr0
-	li	r6, THREAD_TRANSACT_VSCR
-	stvx	vr0, r3, r6
+	li	r6, VRSTATE_VSCR
+	stvx	vr0, r7, r6
 dont_backup_vec:
 	mfspr	r0, SPRN_VRSAVE
 	std	r0, THREAD_TRANSACT_VRSAVE(r3)
@@ -168,10 +168,11 @@ dont_backup_vec:
 	andi.	r0, r4, MSR_FP
 	beq	dont_backup_fp
 
-	SAVE_32FPRS_VSRS_TRANSACT(0, R6, R3)	/* r6 scratch, r3 thread */
+	addi	r7, r3, THREAD_TRANSACT_FPSTATE
+	SAVE_32FPRS_VSRS(0, R6, R7)	/* r6 scratch, r7 transact fp state */
 
 	mffs    fr0
-	stfd    fr0,THREAD_TRANSACT_FPSCR(r3)
+	stfd    fr0,FPSTATE_FPSCR(r7)
 
 dont_backup_fp:
 	/* The moment we treclaim, ALL of our GPRs will switch
@@ -358,10 +359,11 @@ _GLOBAL(tm_recheckpoint)
 	andis.	r0, r4, MSR_VEC@h
 	beq	dont_restore_vec
 
-	li	r5, THREAD_VSCR
-	lvx	vr0, r3, r5
+	addi	r8, r3, THREAD_VRSTATE
+	li	r5, VRSTATE_VSCR
+	lvx	vr0, r8, r5
 	mtvscr	vr0
-	REST_32VRS(0, r5, r3)			/* r5 scratch, r3 THREAD ptr */
+	REST_32VRS(0, r5, r8)			/* r5 scratch, r8 ptr */
 dont_restore_vec:
 	ld	r5, THREAD_VRSAVE(r3)
 	mtspr	SPRN_VRSAVE, r5
@@ -370,9 +372,10 @@ dont_restore_vec:
 	andi.	r0, r4, MSR_FP
 	beq	dont_restore_fp
 
-	lfd	fr0, THREAD_FPSCR(r3)
+	addi	r8, r3, THREAD_FPSTATE
+	lfd	fr0, FPSTATE_FPSCR(r8)
 	MTFSF_L(fr0)
-	REST_32FPRS_VSRS(0, R4, R3)
+	REST_32FPRS_VSRS(0, R4, R8)
 
 dont_restore_fp:
 	mtmsr	r6				/* FP/Vec off again! */
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index f783c932faeb..f0a6814007a5 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -816,7 +816,7 @@ static void parse_fpe(struct pt_regs *regs)
 
 	flush_fp_to_thread(current);
 
-	code = __parse_fpscr(current->thread.fpscr.val);
+	code = __parse_fpscr(current->thread.fp_state.fpscr);
 
 	_exception(SIGFPE, regs, code, regs->nip);
 }
@@ -1069,7 +1069,7 @@ static int emulate_math(struct pt_regs *regs)
 		return 0;
 	case 1: {
 			int code = 0;
-			code = __parse_fpscr(current->thread.fpscr.val);
+			code = __parse_fpscr(current->thread.fp_state.fpscr);
 			_exception(SIGFPE, regs, code, regs->nip);
 			return 0;
 		}
@@ -1371,8 +1371,6 @@ void facility_unavailable_exception(struct pt_regs *regs)
 
 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 
-extern void do_load_up_fpu(struct pt_regs *regs);
-
 void fp_unavailable_tm(struct pt_regs *regs)
 {
 	/* Note:  This does not handle any kind of FP laziness. */
@@ -1403,8 +1401,6 @@ void fp_unavailable_tm(struct pt_regs *regs)
 }
 
 #ifdef CONFIG_ALTIVEC
-extern void do_load_up_altivec(struct pt_regs *regs);
-
 void altivec_unavailable_tm(struct pt_regs *regs)
 {
 	/* See the comments in fp_unavailable_tm().  This function operates
@@ -1634,7 +1630,7 @@ void altivec_assist_exception(struct pt_regs *regs)
 		/* XXX quick hack for now: set the non-Java bit in the VSCR */
 		printk_ratelimited(KERN_ERR "Unrecognized altivec instruction "
 				   "in %s at %lx\n", current->comm, regs->nip);
-		current->thread.vscr.u[3] |= 0x10000;
+		current->thread.vr_state.vscr.u[3] |= 0x10000;
 	}
 }
 #endif /* CONFIG_ALTIVEC */
diff --git a/arch/powerpc/kernel/vecemu.c b/arch/powerpc/kernel/vecemu.c
index 604d0947cb20..c4bfadb2606b 100644
--- a/arch/powerpc/kernel/vecemu.c
+++ b/arch/powerpc/kernel/vecemu.c
@@ -271,7 +271,7 @@ int emulate_altivec(struct pt_regs *regs)
 	vb = (instr >> 11) & 0x1f;
 	vc = (instr >> 6) & 0x1f;
 
-	vrs = current->thread.vr;
+	vrs = current->thread.vr_state.vr;
 	switch (instr & 0x3f) {
 	case 10:
 		switch (vc) {
@@ -320,12 +320,12 @@ int emulate_altivec(struct pt_regs *regs)
 		case 14:	/* vctuxs */
 			for (i = 0; i < 4; ++i)
 				vrs[vd].u[i] = ctuxs(vrs[vb].u[i], va,
-						&current->thread.vscr.u[3]);
+					&current->thread.vr_state.vscr.u[3]);
 			break;
 		case 15:	/* vctsxs */
 			for (i = 0; i < 4; ++i)
 				vrs[vd].u[i] = ctsxs(vrs[vb].u[i], va,
-						&current->thread.vscr.u[3]);
+					&current->thread.vr_state.vscr.u[3]);
 			break;
 		default:
 			return -EINVAL;
diff --git a/arch/powerpc/kernel/vector.S b/arch/powerpc/kernel/vector.S
index 9e20999aaef2..a48df870b696 100644
--- a/arch/powerpc/kernel/vector.S
+++ b/arch/powerpc/kernel/vector.S
@@ -8,29 +8,6 @@
 #include <asm/ptrace.h>
 
 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
-/*
- * Wrapper to call load_up_altivec from C.
- * void do_load_up_altivec(struct pt_regs *regs);
- */
-_GLOBAL(do_load_up_altivec)
-	mflr	r0
-	std	r0, 16(r1)
-	stdu	r1, -112(r1)
-
-	subi	r6, r3, STACK_FRAME_OVERHEAD
-	/* load_up_altivec expects r12=MSR, r13=PACA, and returns
-	 * with r12 = new MSR.
-	 */
-	ld	r12,_MSR(r6)
-	GET_PACA(r13)
-	bl	load_up_altivec
-	std	r12,_MSR(r6)
-
-	ld	r0, 112+16(r1)
-	addi	r1, r1, 112
-	mtlr	r0
-	blr
-
 /* void do_load_up_transact_altivec(struct thread_struct *thread)
  *
  * This is similar to load_up_altivec but for the transactional version of the
@@ -46,10 +23,11 @@ _GLOBAL(do_load_up_transact_altivec)
 	li	r4,1
 	stw	r4,THREAD_USED_VR(r3)
 
-	li	r10,THREAD_TRANSACT_VSCR
+	li	r10,THREAD_TRANSACT_VRSTATE+VRSTATE_VSCR
 	lvx	vr0,r10,r3
 	mtvscr	vr0
-	REST_32VRS_TRANSACT(0,r4,r3)
+	addi	r10,r3,THREAD_TRANSACT_VRSTATE
+	REST_32VRS(0,r4,r10)
 
 	/* Disable VEC again. */
 	MTMSRD(r6)
@@ -59,7 +37,6 @@ _GLOBAL(do_load_up_transact_altivec)
 #endif
 
 /*
- * load_up_altivec(unused, unused, tsk)
  * Disable VMX for the task which had it previously,
  * and save its vector registers in its thread_struct.
  * Enables the VMX for use in the kernel on return.
@@ -90,10 +67,11 @@ _GLOBAL(load_up_altivec)
 	/* Save VMX state to last_task_used_altivec's THREAD struct */
 	toreal(r4)
 	addi	r4,r4,THREAD
-	SAVE_32VRS(0,r5,r4)
+	addi	r7,r4,THREAD_VRSTATE
+	SAVE_32VRS(0,r5,r7)
 	mfvscr	vr0
-	li	r10,THREAD_VSCR
-	stvx	vr0,r10,r4
+	li	r10,VRSTATE_VSCR
+	stvx	vr0,r10,r7
 	/* Disable VMX for last_task_used_altivec */
 	PPC_LL	r5,PT_REGS(r4)
 	toreal(r5)
@@ -125,12 +103,13 @@ _GLOBAL(load_up_altivec)
 	oris	r12,r12,MSR_VEC@h
 	std	r12,_MSR(r1)
 #endif
+	addi	r7,r5,THREAD_VRSTATE
 	li	r4,1
-	li	r10,THREAD_VSCR
+	li	r10,VRSTATE_VSCR
 	stw	r4,THREAD_USED_VR(r5)
-	lvx	vr0,r10,r5
+	lvx	vr0,r10,r7
 	mtvscr	vr0
-	REST_32VRS(0,r4,r5)
+	REST_32VRS(0,r4,r7)
 #ifndef CONFIG_SMP
 	/* Update last_task_used_altivec to 'current' */
 	subi	r4,r5,THREAD		/* Back to 'current' */
@@ -165,12 +144,13 @@ _GLOBAL(giveup_altivec)
 	PPC_LCMPI	0,r3,0
 	beqlr				/* if no previous owner, done */
 	addi	r3,r3,THREAD		/* want THREAD of task */
+	addi	r7,r3,THREAD_VRSTATE
 	PPC_LL	r5,PT_REGS(r3)
 	PPC_LCMPI	0,r5,0
-	SAVE_32VRS(0,r4,r3)
+	SAVE_32VRS(0,r4,r7)
 	mfvscr	vr0
-	li	r4,THREAD_VSCR
-	stvx	vr0,r4,r3
+	li	r4,VRSTATE_VSCR
+	stvx	vr0,r4,r7
 	beq	1f
 	PPC_LL	r4,_MSR-STACK_FRAME_OVERHEAD(r5)
 #ifdef CONFIG_VSX
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 27db1e665959..c0b48f96a91c 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -444,7 +444,7 @@ void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr)
 #ifdef CONFIG_VSX
 	u64 *vcpu_vsx = vcpu->arch.vsr;
 #endif
-	u64 *thread_fpr = (u64*)t->fpr;
+	u64 *thread_fpr = &t->fp_state.fpr[0][0];
 	int i;
 
 	/*
@@ -466,14 +466,14 @@ void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr)
 		/*
 		 * Note that on CPUs with VSX, giveup_fpu stores
 		 * both the traditional FP registers and the added VSX
-		 * registers into thread.fpr[].
+		 * registers into thread.fp_state.fpr[].
 		 */
 		if (current->thread.regs->msr & MSR_FP)
 			giveup_fpu(current);
 		for (i = 0; i < ARRAY_SIZE(vcpu->arch.fpr); i++)
 			vcpu_fpr[i] = thread_fpr[get_fpr_index(i)];
 
-		vcpu->arch.fpscr = t->fpscr.val;
+		vcpu->arch.fpscr = t->fp_state.fpscr;
 
 #ifdef CONFIG_VSX
 		if (cpu_has_feature(CPU_FTR_VSX))
@@ -486,8 +486,8 @@ void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr)
 	if (msr & MSR_VEC) {
 		if (current->thread.regs->msr & MSR_VEC)
 			giveup_altivec(current);
-		memcpy(vcpu->arch.vr, t->vr, sizeof(vcpu->arch.vr));
-		vcpu->arch.vscr = t->vscr;
+		memcpy(vcpu->arch.vr, t->vr_state.vr, sizeof(vcpu->arch.vr));
+		vcpu->arch.vscr = t->vr_state.vscr;
 	}
 #endif
 
@@ -539,7 +539,7 @@ static int kvmppc_handle_ext(struct kvm_vcpu *vcpu, unsigned int exit_nr,
 #ifdef CONFIG_VSX
 	u64 *vcpu_vsx = vcpu->arch.vsr;
 #endif
-	u64 *thread_fpr = (u64*)t->fpr;
+	u64 *thread_fpr = &t->fp_state.fpr[0][0];
 	int i;
 
 	/* When we have paired singles, we emulate in software */
@@ -584,15 +584,15 @@ static int kvmppc_handle_ext(struct kvm_vcpu *vcpu, unsigned int exit_nr,
 		for (i = 0; i < ARRAY_SIZE(vcpu->arch.vsr) / 2; i++)
 			thread_fpr[get_fpr_index(i) + 1] = vcpu_vsx[i];
 #endif
-		t->fpscr.val = vcpu->arch.fpscr;
+		t->fp_state.fpscr = vcpu->arch.fpscr;
 		t->fpexc_mode = 0;
 		kvmppc_load_up_fpu();
 	}
 
 	if (msr & MSR_VEC) {
 #ifdef CONFIG_ALTIVEC
-		memcpy(t->vr, vcpu->arch.vr, sizeof(vcpu->arch.vr));
-		t->vscr = vcpu->arch.vscr;
+		memcpy(t->vr_state.vr, vcpu->arch.vr, sizeof(vcpu->arch.vr));
+		t->vr_state.vscr = vcpu->arch.vscr;
 		t->vrsave = -1;
 		kvmppc_load_up_altivec();
 #endif
@@ -1116,12 +1116,10 @@ void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
 int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 {
 	int ret;
-	double fpr[32][TS_FPRWIDTH];
-	unsigned int fpscr;
+	struct thread_fp_state fp;
 	int fpexc_mode;
 #ifdef CONFIG_ALTIVEC
-	vector128 vr[32];
-	vector128 vscr;
+	struct thread_vr_state vr;
 	unsigned long uninitialized_var(vrsave);
 	int used_vr;
 #endif
@@ -1153,8 +1151,7 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 	/* Save FPU state in stack */
 	if (current->thread.regs->msr & MSR_FP)
 		giveup_fpu(current);
-	memcpy(fpr, current->thread.fpr, sizeof(current->thread.fpr));
-	fpscr = current->thread.fpscr.val;
+	fp = current->thread.fp_state;
 	fpexc_mode = current->thread.fpexc_mode;
 
 #ifdef CONFIG_ALTIVEC
@@ -1163,8 +1160,7 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 	if (used_vr) {
 		if (current->thread.regs->msr & MSR_VEC)
 			giveup_altivec(current);
-		memcpy(vr, current->thread.vr, sizeof(current->thread.vr));
-		vscr = current->thread.vscr;
+		vr = current->thread.vr_state;
 		vrsave = current->thread.vrsave;
 	}
 #endif
@@ -1196,15 +1192,13 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 	current->thread.regs->msr = ext_msr;
 
 	/* Restore FPU/VSX state from stack */
-	memcpy(current->thread.fpr, fpr, sizeof(current->thread.fpr));
-	current->thread.fpscr.val = fpscr;
+	current->thread.fp_state = fp;
 	current->thread.fpexc_mode = fpexc_mode;
 
 #ifdef CONFIG_ALTIVEC
 	/* Restore Altivec state from stack */
 	if (used_vr && current->thread.used_vr) {
-		memcpy(current->thread.vr, vr, sizeof(current->thread.vr));
-		current->thread.vscr = vscr;
+		current->thread.vr_state = vr;
 		current->thread.vrsave = vrsave;
 	}
 	current->thread.used_vr = used_vr;
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 17722d82f1d1..5133199f6cb7 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -656,9 +656,8 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 {
 	int ret, s;
 #ifdef CONFIG_PPC_FPU
-	unsigned int fpscr;
+	struct thread_fp_state fp;
 	int fpexc_mode;
-	u64 fpr[32];
 #endif
 
 	if (!vcpu->arch.sane) {
@@ -677,13 +676,13 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 #ifdef CONFIG_PPC_FPU
 	/* Save userspace FPU state in stack */
 	enable_kernel_fp();
-	memcpy(fpr, current->thread.fpr, sizeof(current->thread.fpr));
-	fpscr = current->thread.fpscr.val;
+	fp = current->thread.fp_state;
 	fpexc_mode = current->thread.fpexc_mode;
 
 	/* Restore guest FPU state to thread */
-	memcpy(current->thread.fpr, vcpu->arch.fpr, sizeof(vcpu->arch.fpr));
-	current->thread.fpscr.val = vcpu->arch.fpscr;
+	memcpy(current->thread.fp_state.fpr, vcpu->arch.fpr,
+	       sizeof(vcpu->arch.fpr));
+	current->thread.fp_state.fpscr = vcpu->arch.fpscr;
 
 	/*
 	 * Since we can't trap on MSR_FP in GS-mode, we consider the guest
@@ -709,12 +708,12 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 	vcpu->fpu_active = 0;
 
 	/* Save guest FPU state from thread */
-	memcpy(vcpu->arch.fpr, current->thread.fpr, sizeof(vcpu->arch.fpr));
-	vcpu->arch.fpscr = current->thread.fpscr.val;
+	memcpy(vcpu->arch.fpr, current->thread.fp_state.fpr,
+	       sizeof(vcpu->arch.fpr));
+	vcpu->arch.fpscr = current->thread.fp_state.fpscr;
 
 	/* Restore userspace FPU state from stack */
-	memcpy(current->thread.fpr, fpr, sizeof(current->thread.fpr));
-	current->thread.fpscr.val = fpscr;
+	current->thread.fp_state = fp;
 	current->thread.fpexc_mode = fpexc_mode;
 #endif
 
-- 
cgit 


From 18461960cbf50bf345ef0667d45d5f64de8fb893 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Tue, 10 Sep 2013 20:21:10 +1000
Subject: powerpc: Provide for giveup_fpu/altivec to save state in alternate
 location

This provides a facility which is intended for use by KVM, where the
contents of the FP/VSX and VMX (Altivec) registers can be saved away
to somewhere other than the thread_struct when kernel code wants to
use floating point or VMX instructions.  This is done by providing a
pointer in the thread_struct to indicate where the state should be
saved to.  The giveup_fpu() and giveup_altivec() functions test these
pointers and save state to the indicated location if they are non-NULL.
Note that the MSR_FP/VEC bits in task->thread.regs->msr are still used
to indicate whether the CPU register state is live, even when an
alternate save location is being used.

This also provides load_fp_state() and load_vr_state() functions, which
load up FP/VSX and VMX state from memory into the CPU registers, and
corresponding store_fp_state() and store_vr_state() functions, which
store FP/VSX and VMX state into memory from the CPU registers.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/processor.h |  7 +++++++
 arch/powerpc/kernel/asm-offsets.c    |  2 ++
 arch/powerpc/kernel/fpu.S            | 25 ++++++++++++++++++++++++-
 arch/powerpc/kernel/ppc_ksyms.c      |  4 ++++
 arch/powerpc/kernel/process.c        |  7 +++++++
 arch/powerpc/kernel/vector.S         | 29 +++++++++++++++++++++++++++--
 6 files changed, 71 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h
index afe695e9feb8..ea88e7bd4a34 100644
--- a/arch/powerpc/include/asm/processor.h
+++ b/arch/powerpc/include/asm/processor.h
@@ -211,6 +211,7 @@ struct thread_struct {
 #endif
 #endif
 	struct thread_fp_state	fp_state;
+	struct thread_fp_state	*fp_save_area;
 	int		fpexc_mode;	/* floating-point exception mode */
 	unsigned int	align_ctl;	/* alignment handling control */
 #ifdef CONFIG_PPC64
@@ -229,6 +230,7 @@ struct thread_struct {
 	unsigned long	trap_nr;	/* last trap # on this thread */
 #ifdef CONFIG_ALTIVEC
 	struct thread_vr_state vr_state;
+	struct thread_vr_state *vr_save_area;
 	unsigned long	vrsave;
 	int		used_vr;	/* set if process has used altivec */
 #endif /* CONFIG_ALTIVEC */
@@ -357,6 +359,11 @@ extern int set_endian(struct task_struct *tsk, unsigned int val);
 extern int get_unalign_ctl(struct task_struct *tsk, unsigned long adr);
 extern int set_unalign_ctl(struct task_struct *tsk, unsigned int val);
 
+extern void load_fp_state(struct thread_fp_state *fp);
+extern void store_fp_state(struct thread_fp_state *fp);
+extern void load_vr_state(struct thread_vr_state *vr);
+extern void store_vr_state(struct thread_vr_state *vr);
+
 static inline unsigned int __unpack_fe01(unsigned long msr_bits)
 {
 	return ((msr_bits & MSR_FE0) >> 10) | ((msr_bits & MSR_FE1) >> 8);
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 8d27b61c95b9..6278edddc3f8 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -91,9 +91,11 @@ int main(void)
 #endif
 	DEFINE(THREAD_FPEXC_MODE, offsetof(struct thread_struct, fpexc_mode));
 	DEFINE(THREAD_FPSTATE, offsetof(struct thread_struct, fp_state));
+	DEFINE(THREAD_FPSAVEAREA, offsetof(struct thread_struct, fp_save_area));
 	DEFINE(FPSTATE_FPSCR, offsetof(struct thread_fp_state, fpscr));
 #ifdef CONFIG_ALTIVEC
 	DEFINE(THREAD_VRSTATE, offsetof(struct thread_struct, vr_state));
+	DEFINE(THREAD_VRSAVEAREA, offsetof(struct thread_struct, vr_save_area));
 	DEFINE(THREAD_VRSAVE, offsetof(struct thread_struct, vrsave));
 	DEFINE(THREAD_USED_VR, offsetof(struct thread_struct, used_vr));
 	DEFINE(VRSTATE_VSCR, offsetof(struct thread_vr_state, vscr));
diff --git a/arch/powerpc/kernel/fpu.S b/arch/powerpc/kernel/fpu.S
index 34b96e6d2f0d..4dca05e91e95 100644
--- a/arch/powerpc/kernel/fpu.S
+++ b/arch/powerpc/kernel/fpu.S
@@ -80,6 +80,26 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX)
 	blr
 #endif /* CONFIG_PPC_TRANSACTIONAL_MEM */
 
+/*
+ * Load state from memory into FP registers including FPSCR.
+ * Assumes the caller has enabled FP in the MSR.
+ */
+_GLOBAL(load_fp_state)
+	lfd	fr0,FPSTATE_FPSCR(r3)
+	MTFSF_L(fr0)
+	REST_32FPVSRS(0, R4, R3)
+	blr
+
+/*
+ * Store FP state into memory, including FPSCR
+ * Assumes the caller has enabled FP in the MSR.
+ */
+_GLOBAL(store_fp_state)
+	SAVE_32FPVSRS(0, R4, R3)
+	mffs	fr0
+	stfd	fr0,FPSTATE_FPSCR(r3)
+	blr
+
 /*
  * This task wants to use the FPU now.
  * On UP, disable FP for the task which had the FPU previously,
@@ -172,9 +192,12 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX)
 	PPC_LCMPI	0,r3,0
 	beqlr-				/* if no previous owner, done */
 	addi	r3,r3,THREAD	        /* want THREAD of task */
+	PPC_LL	r6,THREAD_FPSAVEAREA(r3)
 	PPC_LL	r5,PT_REGS(r3)
-	PPC_LCMPI	0,r5,0
+	PPC_LCMPI	0,r6,0
+	bne	2f
 	addi	r6,r3,THREAD_FPSTATE
+2:	PPC_LCMPI	0,r5,0
 	SAVE_32FPVSRS(0, R4, R6)
 	mffs	fr0
 	stfd	fr0,FPSTATE_FPSCR(r6)
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index 21646dbe1bb3..56a4bec1b11a 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -98,9 +98,13 @@ EXPORT_SYMBOL(start_thread);
 
 #ifdef CONFIG_PPC_FPU
 EXPORT_SYMBOL(giveup_fpu);
+EXPORT_SYMBOL(load_fp_state);
+EXPORT_SYMBOL(store_fp_state);
 #endif
 #ifdef CONFIG_ALTIVEC
 EXPORT_SYMBOL(giveup_altivec);
+EXPORT_SYMBOL(load_vr_state);
+EXPORT_SYMBOL(store_vr_state);
 #endif /* CONFIG_ALTIVEC */
 #ifdef CONFIG_VSX
 EXPORT_SYMBOL(giveup_vsx);
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 7a281416affb..8649a3d629e1 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1008,6 +1008,11 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
 	p->thread.ptrace_bps[0] = NULL;
 #endif
 
+	p->thread.fp_save_area = NULL;
+#ifdef CONFIG_ALTIVEC
+	p->thread.vr_save_area = NULL;
+#endif
+
 #ifdef CONFIG_PPC_STD_MMU_64
 	if (mmu_has_feature(MMU_FTR_SLB)) {
 		unsigned long sp_vsid;
@@ -1114,9 +1119,11 @@ void start_thread(struct pt_regs *regs, unsigned long start, unsigned long sp)
 	current->thread.used_vsr = 0;
 #endif
 	memset(&current->thread.fp_state, 0, sizeof(current->thread.fp_state));
+	current->thread.fp_save_area = NULL;
 #ifdef CONFIG_ALTIVEC
 	memset(&current->thread.vr_state, 0, sizeof(current->thread.vr_state));
 	current->thread.vr_state.vscr.u[3] = 0x00010000; /* Java mode disabled */
+	current->thread.vr_save_area = NULL;
 	current->thread.vrsave = 0;
 	current->thread.used_vr = 0;
 #endif /* CONFIG_ALTIVEC */
diff --git a/arch/powerpc/kernel/vector.S b/arch/powerpc/kernel/vector.S
index a48df870b696..eacda4eea2d7 100644
--- a/arch/powerpc/kernel/vector.S
+++ b/arch/powerpc/kernel/vector.S
@@ -36,6 +36,28 @@ _GLOBAL(do_load_up_transact_altivec)
 	blr
 #endif
 
+/*
+ * Load state from memory into VMX registers including VSCR.
+ * Assumes the caller has enabled VMX in the MSR.
+ */
+_GLOBAL(load_vr_state)
+	li	r4,VRSTATE_VSCR
+	lvx	vr0,r4,r3
+	mtvscr	vr0
+	REST_32VRS(0,r4,r3)
+	blr
+
+/*
+ * Store VMX state into memory, including VSCR.
+ * Assumes the caller has enabled VMX in the MSR.
+ */
+_GLOBAL(store_vr_state)
+	SAVE_32VRS(0, r4, r3)
+	mfvscr	vr0
+	li	r4, VRSTATE_VSCR
+	stvx	vr0, r4, r3
+	blr
+
 /*
  * Disable VMX for the task which had it previously,
  * and save its vector registers in its thread_struct.
@@ -144,9 +166,12 @@ _GLOBAL(giveup_altivec)
 	PPC_LCMPI	0,r3,0
 	beqlr				/* if no previous owner, done */
 	addi	r3,r3,THREAD		/* want THREAD of task */
-	addi	r7,r3,THREAD_VRSTATE
+	PPC_LL	r7,THREAD_VRSAVEAREA(r3)
 	PPC_LL	r5,PT_REGS(r3)
-	PPC_LCMPI	0,r5,0
+	PPC_LCMPI	0,r7,0
+	bne	2f
+	addi	r7,r3,THREAD_VRSTATE
+2:	PPC_LCMPI	0,r5,0
 	SAVE_32VRS(0,r4,r7)
 	mfvscr	vr0
 	li	r4,VRSTATE_VSCR
-- 
cgit 


From e1a26170692dc1e5fbe0ccd98ef86cc9fcd31a64 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 10 Oct 2013 16:52:43 -0700
Subject: Bluetooth: Provide hdev parameter to hci_recv_frame() driver callback

To avoid casting skb->dev into hdev, just let the drivers provide
the hdev directly when calling hci_recv_frame() function.

This patch also fixes up all drivers to provide the hdev.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/bfusb.c        |  3 +--
 drivers/bluetooth/bluecard_cs.c  |  3 +--
 drivers/bluetooth/bpa10x.c       |  4 +---
 drivers/bluetooth/bt3c_cs.c      |  3 +--
 drivers/bluetooth/btmrvl_sdio.c  |  8 +++-----
 drivers/bluetooth/btsdio.c       |  3 +--
 drivers/bluetooth/btuart_cs.c    |  3 +--
 drivers/bluetooth/btwilink.c     |  4 +---
 drivers/bluetooth/dtl1_cs.c      |  3 +--
 drivers/bluetooth/hci_bcsp.c     |  5 ++---
 drivers/bluetooth/hci_h5.c       |  2 +-
 drivers/bluetooth/hci_ll.c       | 13 ++++++-------
 drivers/bluetooth/hci_vhci.c     |  3 +--
 include/net/bluetooth/hci_core.h |  2 +-
 net/bluetooth/hci_core.c         |  6 ++----
 15 files changed, 24 insertions(+), 41 deletions(-)

diff --git a/drivers/bluetooth/bfusb.c b/drivers/bluetooth/bfusb.c
index 66faad0c6237..b7b5bb879f08 100644
--- a/drivers/bluetooth/bfusb.c
+++ b/drivers/bluetooth/bfusb.c
@@ -318,7 +318,6 @@ static inline int bfusb_recv_block(struct bfusb_data *data, int hdr, unsigned ch
 			return -ENOMEM;
 		}
 
-		skb->dev = (void *) data->hdev;
 		bt_cb(skb)->pkt_type = pkt_type;
 
 		data->reassembly = skb;
@@ -333,7 +332,7 @@ static inline int bfusb_recv_block(struct bfusb_data *data, int hdr, unsigned ch
 		memcpy(skb_put(data->reassembly, len), buf, len);
 
 	if (hdr & 0x08) {
-		hci_recv_frame(data->reassembly);
+		hci_recv_frame(data->hdev, data->reassembly);
 		data->reassembly = NULL;
 	}
 
diff --git a/drivers/bluetooth/bluecard_cs.c b/drivers/bluetooth/bluecard_cs.c
index aa872c9b3fc2..395acde99d78 100644
--- a/drivers/bluetooth/bluecard_cs.c
+++ b/drivers/bluetooth/bluecard_cs.c
@@ -399,7 +399,6 @@ static void bluecard_receive(bluecard_info_t *info, unsigned int offset)
 
 		if (info->rx_state == RECV_WAIT_PACKET_TYPE) {
 
-			info->rx_skb->dev = (void *) info->hdev;
 			bt_cb(info->rx_skb)->pkt_type = buf[i];
 
 			switch (bt_cb(info->rx_skb)->pkt_type) {
@@ -477,7 +476,7 @@ static void bluecard_receive(bluecard_info_t *info, unsigned int offset)
 					break;
 
 				case RECV_WAIT_DATA:
-					hci_recv_frame(info->rx_skb);
+					hci_recv_frame(info->hdev, info->rx_skb);
 					info->rx_skb = NULL;
 					break;
 
diff --git a/drivers/bluetooth/bpa10x.c b/drivers/bluetooth/bpa10x.c
index 2fe4a8031348..3188fb48bf4b 100644
--- a/drivers/bluetooth/bpa10x.c
+++ b/drivers/bluetooth/bpa10x.c
@@ -129,8 +129,6 @@ static int bpa10x_recv(struct hci_dev *hdev, int queue, void *buf, int count)
 				return -ENOMEM;
 			}
 
-			skb->dev = (void *) hdev;
-
 			data->rx_skb[queue] = skb;
 
 			scb = (void *) skb->cb;
@@ -155,7 +153,7 @@ static int bpa10x_recv(struct hci_dev *hdev, int queue, void *buf, int count)
 			data->rx_skb[queue] = NULL;
 
 			bt_cb(skb)->pkt_type = scb->type;
-			hci_recv_frame(skb);
+			hci_recv_frame(hdev, skb);
 		}
 
 		count -= len; buf += len;
diff --git a/drivers/bluetooth/bt3c_cs.c b/drivers/bluetooth/bt3c_cs.c
index 673455cbde4c..d8e4b0d7926e 100644
--- a/drivers/bluetooth/bt3c_cs.c
+++ b/drivers/bluetooth/bt3c_cs.c
@@ -247,7 +247,6 @@ static void bt3c_receive(bt3c_info_t *info)
 
 		if (info->rx_state == RECV_WAIT_PACKET_TYPE) {
 
-			info->rx_skb->dev = (void *) info->hdev;
 			bt_cb(info->rx_skb)->pkt_type = inb(iobase + DATA_L);
 			inb(iobase + DATA_H);
 			//printk("bt3c: PACKET_TYPE=%02x\n", bt_cb(info->rx_skb)->pkt_type);
@@ -318,7 +317,7 @@ static void bt3c_receive(bt3c_info_t *info)
 					break;
 
 				case RECV_WAIT_DATA:
-					hci_recv_frame(info->rx_skb);
+					hci_recv_frame(info->hdev, info->rx_skb);
 					info->rx_skb = NULL;
 					break;
 
diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c
index 332475e400cf..fabcf5bb48af 100644
--- a/drivers/bluetooth/btmrvl_sdio.c
+++ b/drivers/bluetooth/btmrvl_sdio.c
@@ -600,15 +600,14 @@ static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv)
 	case HCI_SCODATA_PKT:
 	case HCI_EVENT_PKT:
 		bt_cb(skb)->pkt_type = type;
-		skb->dev = (void *)hdev;
 		skb_put(skb, buf_len);
 		skb_pull(skb, SDIO_HEADER_LEN);
 
 		if (type == HCI_EVENT_PKT) {
 			if (btmrvl_check_evtpkt(priv, skb))
-				hci_recv_frame(skb);
+				hci_recv_frame(hdev, skb);
 		} else {
-			hci_recv_frame(skb);
+			hci_recv_frame(hdev, skb);
 		}
 
 		hdev->stat.byte_rx += buf_len;
@@ -616,12 +615,11 @@ static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv)
 
 	case MRVL_VENDOR_PKT:
 		bt_cb(skb)->pkt_type = HCI_VENDOR_PKT;
-		skb->dev = (void *)hdev;
 		skb_put(skb, buf_len);
 		skb_pull(skb, SDIO_HEADER_LEN);
 
 		if (btmrvl_process_event(priv, skb))
-			hci_recv_frame(skb);
+			hci_recv_frame(hdev, skb);
 
 		hdev->stat.byte_rx += buf_len;
 		break;
diff --git a/drivers/bluetooth/btsdio.c b/drivers/bluetooth/btsdio.c
index 4a9909713874..72fe49e60359 100644
--- a/drivers/bluetooth/btsdio.c
+++ b/drivers/bluetooth/btsdio.c
@@ -157,10 +157,9 @@ static int btsdio_rx_packet(struct btsdio_data *data)
 
 	data->hdev->stat.byte_rx += len;
 
-	skb->dev = (void *) data->hdev;
 	bt_cb(skb)->pkt_type = hdr[3];
 
-	err = hci_recv_frame(skb);
+	err = hci_recv_frame(data->hdev, skb);
 	if (err < 0)
 		return err;
 
diff --git a/drivers/bluetooth/btuart_cs.c b/drivers/bluetooth/btuart_cs.c
index 970e2d3dd3c2..d0b89ecf1c59 100644
--- a/drivers/bluetooth/btuart_cs.c
+++ b/drivers/bluetooth/btuart_cs.c
@@ -198,7 +198,6 @@ static void btuart_receive(btuart_info_t *info)
 
 		if (info->rx_state == RECV_WAIT_PACKET_TYPE) {
 
-			info->rx_skb->dev = (void *) info->hdev;
 			bt_cb(info->rx_skb)->pkt_type = inb(iobase + UART_RX);
 
 			switch (bt_cb(info->rx_skb)->pkt_type) {
@@ -265,7 +264,7 @@ static void btuart_receive(btuart_info_t *info)
 					break;
 
 				case RECV_WAIT_DATA:
-					hci_recv_frame(info->rx_skb);
+					hci_recv_frame(info->hdev, info->rx_skb);
 					info->rx_skb = NULL;
 					break;
 
diff --git a/drivers/bluetooth/btwilink.c b/drivers/bluetooth/btwilink.c
index 60abf596f60e..5e10fb0a7e05 100644
--- a/drivers/bluetooth/btwilink.c
+++ b/drivers/bluetooth/btwilink.c
@@ -108,10 +108,8 @@ static long st_receive(void *priv_data, struct sk_buff *skb)
 		return -EFAULT;
 	}
 
-	skb->dev = (void *) lhst->hdev;
-
 	/* Forward skb to HCI core layer */
-	err = hci_recv_frame(skb);
+	err = hci_recv_frame(lhst->hdev, skb);
 	if (err < 0) {
 		BT_ERR("Unable to push skb to HCI core(%d)", err);
 		return err;
diff --git a/drivers/bluetooth/dtl1_cs.c b/drivers/bluetooth/dtl1_cs.c
index c43aff8ec995..29451413bc04 100644
--- a/drivers/bluetooth/dtl1_cs.c
+++ b/drivers/bluetooth/dtl1_cs.c
@@ -256,9 +256,8 @@ static void dtl1_receive(dtl1_info_t *info)
 				case 0x83:
 				case 0x84:
 					/* send frame to the HCI layer */
-					info->rx_skb->dev = (void *) info->hdev;
 					bt_cb(info->rx_skb)->pkt_type &= 0x0f;
-					hci_recv_frame(info->rx_skb);
+					hci_recv_frame(info->hdev, info->rx_skb);
 					break;
 				default:
 					/* unknown packet */
diff --git a/drivers/bluetooth/hci_bcsp.c b/drivers/bluetooth/hci_bcsp.c
index 57e502e06080..0bc87f7abd95 100644
--- a/drivers/bluetooth/hci_bcsp.c
+++ b/drivers/bluetooth/hci_bcsp.c
@@ -522,7 +522,7 @@ static void bcsp_complete_rx_pkt(struct hci_uart *hu)
 				memcpy(skb_push(bcsp->rx_skb, HCI_EVENT_HDR_SIZE), &hdr, HCI_EVENT_HDR_SIZE);
 				bt_cb(bcsp->rx_skb)->pkt_type = HCI_EVENT_PKT;
 
-				hci_recv_frame(bcsp->rx_skb);
+				hci_recv_frame(hu->hdev, bcsp->rx_skb);
 			} else {
 				BT_ERR ("Packet for unknown channel (%u %s)",
 					bcsp->rx_skb->data[1] & 0x0f,
@@ -536,7 +536,7 @@ static void bcsp_complete_rx_pkt(struct hci_uart *hu)
 		/* Pull out BCSP hdr */
 		skb_pull(bcsp->rx_skb, 4);
 
-		hci_recv_frame(bcsp->rx_skb);
+		hci_recv_frame(hu->hdev, bcsp->rx_skb);
 	}
 
 	bcsp->rx_state = BCSP_W4_PKT_DELIMITER;
@@ -655,7 +655,6 @@ static int bcsp_recv(struct hci_uart *hu, void *data, int count)
 					bcsp->rx_count = 0;
 					return 0;
 				}
-				bcsp->rx_skb->dev = (void *) hu->hdev;
 				break;
 			}
 			break;
diff --git a/drivers/bluetooth/hci_h5.c b/drivers/bluetooth/hci_h5.c
index b6154d5a07a5..f6f497450560 100644
--- a/drivers/bluetooth/hci_h5.c
+++ b/drivers/bluetooth/hci_h5.c
@@ -340,7 +340,7 @@ static void h5_complete_rx_pkt(struct hci_uart *hu)
 		/* Remove Three-wire header */
 		skb_pull(h5->rx_skb, 4);
 
-		hci_recv_frame(h5->rx_skb);
+		hci_recv_frame(hu->hdev, h5->rx_skb);
 		h5->rx_skb = NULL;
 
 		break;
diff --git a/drivers/bluetooth/hci_ll.c b/drivers/bluetooth/hci_ll.c
index cfc767938589..58a9541feba6 100644
--- a/drivers/bluetooth/hci_ll.c
+++ b/drivers/bluetooth/hci_ll.c
@@ -346,14 +346,14 @@ static int ll_enqueue(struct hci_uart *hu, struct sk_buff *skb)
 	return 0;
 }
 
-static inline int ll_check_data_len(struct ll_struct *ll, int len)
+static inline int ll_check_data_len(struct hci_dev *hdev, struct ll_struct *ll, int len)
 {
 	int room = skb_tailroom(ll->rx_skb);
 
 	BT_DBG("len %d room %d", len, room);
 
 	if (!len) {
-		hci_recv_frame(ll->rx_skb);
+		hci_recv_frame(hdev, ll->rx_skb);
 	} else if (len > room) {
 		BT_ERR("Data length is too large");
 		kfree_skb(ll->rx_skb);
@@ -395,7 +395,7 @@ static int ll_recv(struct hci_uart *hu, void *data, int count)
 			switch (ll->rx_state) {
 			case HCILL_W4_DATA:
 				BT_DBG("Complete data");
-				hci_recv_frame(ll->rx_skb);
+				hci_recv_frame(hu->hdev, ll->rx_skb);
 
 				ll->rx_state = HCILL_W4_PACKET_TYPE;
 				ll->rx_skb = NULL;
@@ -406,7 +406,7 @@ static int ll_recv(struct hci_uart *hu, void *data, int count)
 
 				BT_DBG("Event header: evt 0x%2.2x plen %d", eh->evt, eh->plen);
 
-				ll_check_data_len(ll, eh->plen);
+				ll_check_data_len(hu->hdev, ll, eh->plen);
 				continue;
 
 			case HCILL_W4_ACL_HDR:
@@ -415,7 +415,7 @@ static int ll_recv(struct hci_uart *hu, void *data, int count)
 
 				BT_DBG("ACL header: dlen %d", dlen);
 
-				ll_check_data_len(ll, dlen);
+				ll_check_data_len(hu->hdev, ll, dlen);
 				continue;
 
 			case HCILL_W4_SCO_HDR:
@@ -423,7 +423,7 @@ static int ll_recv(struct hci_uart *hu, void *data, int count)
 
 				BT_DBG("SCO header: dlen %d", sh->dlen);
 
-				ll_check_data_len(ll, sh->dlen);
+				ll_check_data_len(hu->hdev, ll, sh->dlen);
 				continue;
 			}
 		}
@@ -494,7 +494,6 @@ static int ll_recv(struct hci_uart *hu, void *data, int count)
 			return -ENOMEM;
 		}
 
-		ll->rx_skb->dev = (void *) hu->hdev;
 		bt_cb(ll->rx_skb)->pkt_type = type;
 	}
 
diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index c04a3e6fb37c..0fd522e85a71 100644
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -179,10 +179,9 @@ static inline ssize_t vhci_get_user(struct vhci_data *data,
 			return -ENODEV;
 		}
 
-		skb->dev = (void *) data->hdev;
 		bt_cb(skb)->pkt_type = pkt_type;
 
-		ret = hci_recv_frame(skb);
+		ret = hci_recv_frame(data->hdev, skb);
 		break;
 
 	case HCI_VENDOR_PKT:
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 237bf8c03fb4..29b81476424c 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -755,7 +755,7 @@ int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
 
 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
 
-int hci_recv_frame(struct sk_buff *skb);
+int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb);
 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
 
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 6cc2f86499f8..4f0d4b443171 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2485,9 +2485,8 @@ int hci_resume_dev(struct hci_dev *hdev)
 EXPORT_SYMBOL(hci_resume_dev);
 
 /* Receive frame from HCI drivers */
-int hci_recv_frame(struct sk_buff *skb)
+int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 	if (!hdev || (!test_bit(HCI_UP, &hdev->flags)
 		      && !test_bit(HCI_INIT, &hdev->flags))) {
 		kfree_skb(skb);
@@ -2546,7 +2545,6 @@ static int hci_reassembly(struct hci_dev *hdev, int type, void *data,
 		scb->expect = hlen;
 		scb->pkt_type = type;
 
-		skb->dev = (void *) hdev;
 		hdev->reassembly[index] = skb;
 	}
 
@@ -2606,7 +2604,7 @@ static int hci_reassembly(struct hci_dev *hdev, int type, void *data,
 			/* Complete frame */
 
 			bt_cb(skb)->pkt_type = type;
-			hci_recv_frame(skb);
+			hci_recv_frame(hdev, skb);
 
 			hdev->reassembly[index] = NULL;
 			return remain;
-- 
cgit 


From 9145d15128bd3ca68cd7fdf04535a710ac88bdba Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Thu, 18 Jul 2013 08:45:41 +0300
Subject: iwlwifi: mvm: BT Coex - don't limit agg size in loose scheme

In loose BT Coex scheme, the aggregation size doesn't need to
be limited.

To avoid triggering it, remove a lockdep assertion - we need
to compute the AMPDU size limit from rate control code which
can't take mvm->mutex. This means that there is a race but in
the worst case, we will have a wrong AMPDU size limit which
is not a big issue.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/bt-coex.c | 30 +++++++++++++++++++++++++++++-
 drivers/net/wireless/iwlwifi/mvm/mvm.h     |  2 ++
 drivers/net/wireless/iwlwifi/mvm/rs.c      | 19 +++++++++++++------
 3 files changed, 44 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index 7d41a0efd37b..57a7503030fc 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -267,7 +267,13 @@ iwl_get_coex_type(struct iwl_mvm *mvm, const struct ieee80211_vif *vif)
 	enum iwl_bt_coex_lut_type ret;
 	u16 phy_ctx_id;
 
-	lockdep_assert_held(&mvm->mutex);
+	/*
+	 * Checking that we hold mvm->mutex is a good idea, but the rate
+	 * control can't acquire the mutex since it runs in Tx path.
+	 * So this is racy in that case, but in the worst case, the AMPDU
+	 * size limit will be wrong for a short time which is not a big
+	 * issue.
+	 */
 
 	rcu_read_lock();
 
@@ -843,6 +849,28 @@ void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 		IWL_ERR(mvm, "Failed to update the ctrl_kill_msk\n");
 }
 
+#define LINK_QUAL_AGG_TIME_LIMIT_DEF	(4000)
+#define LINK_QUAL_AGG_TIME_LIMIT_BT_ACT	(1200)
+
+u16 iwl_mvm_bt_coex_agg_time_limit(struct iwl_mvm *mvm,
+				   struct ieee80211_sta *sta)
+{
+	struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv;
+	enum iwl_bt_coex_lut_type lut_type;
+
+	if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
+	    BT_LOW_TRAFFIC)
+		return LINK_QUAL_AGG_TIME_LIMIT_DEF;
+
+	lut_type = iwl_get_coex_type(mvm, mvmsta->vif);
+
+	if (lut_type == BT_COEX_LOOSE_LUT)
+		return LINK_QUAL_AGG_TIME_LIMIT_DEF;
+
+	/* tight coex, high bt traffic, reduce AGG time limit */
+	return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
+}
+
 void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 {
 	if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX))
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 18c0ae965658..6387d2d7722b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -791,6 +791,8 @@ int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 			   enum ieee80211_rssi_event rssi_event);
 void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
+u16 iwl_mvm_bt_coex_agg_time_limit(struct iwl_mvm *mvm,
+				   struct ieee80211_sta *sta);
 enum iwl_bt_kill_msk {
 	BT_KILL_MSK_DEFAULT,
 	BT_KILL_MSK_SCO_HID_A2DP,
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 742aeab7745d..a8bd0ede8f51 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -171,6 +171,7 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm,
 				   struct ieee80211_sta *sta,
 				   struct iwl_lq_sta *lq_sta);
 static void rs_fill_link_cmd(struct iwl_mvm *mvm,
+			     struct ieee80211_sta *sta,
 			     struct iwl_lq_sta *lq_sta, u32 rate_n_flags);
 static void rs_stay_in_table(struct iwl_lq_sta *lq_sta, bool force_search);
 
@@ -296,7 +297,7 @@ static void rs_program_fix_rate(struct iwl_mvm *mvm,
 		       lq_sta->lq.sta_id, lq_sta->dbg_fixed_rate);
 
 	if (lq_sta->dbg_fixed_rate) {
-		rs_fill_link_cmd(NULL, lq_sta, lq_sta->dbg_fixed_rate);
+		rs_fill_link_cmd(NULL, NULL, lq_sta, lq_sta->dbg_fixed_rate);
 		iwl_mvm_send_lq_cmd(lq_sta->drv, &lq_sta->lq, CMD_ASYNC, false);
 	}
 }
@@ -1708,6 +1709,7 @@ static void rs_stay_in_table(struct iwl_lq_sta *lq_sta, bool force_search)
  * setup rate table in uCode
  */
 static void rs_update_rate_tbl(struct iwl_mvm *mvm,
+			       struct ieee80211_sta *sta,
 			       struct iwl_lq_sta *lq_sta,
 			       struct iwl_scale_tbl_info *tbl,
 			       int index)
@@ -1716,7 +1718,7 @@ static void rs_update_rate_tbl(struct iwl_mvm *mvm,
 
 	/* Update uCode's rate table. */
 	rate = rate_n_flags_from_tbl(mvm, tbl, index);
-	rs_fill_link_cmd(mvm, lq_sta, rate);
+	rs_fill_link_cmd(mvm, sta, lq_sta, rate);
 	iwl_mvm_send_lq_cmd(mvm, &lq_sta->lq, CMD_ASYNC, false);
 }
 
@@ -1839,7 +1841,7 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm,
 			tbl = &(lq_sta->lq_info[lq_sta->active_tbl]);
 			/* get "active" rate info */
 			index = iwl_hwrate_to_plcp_idx(tbl->current_rate);
-			rs_update_rate_tbl(mvm, lq_sta, tbl, index);
+			rs_update_rate_tbl(mvm, sta, lq_sta, tbl, index);
 		}
 		return;
 	}
@@ -2074,7 +2076,7 @@ static void rs_rate_scale_perform(struct iwl_mvm *mvm,
 lq_update:
 	/* Replace uCode's rate table for the destination station. */
 	if (update_lq)
-		rs_update_rate_tbl(mvm, lq_sta, tbl, index);
+		rs_update_rate_tbl(mvm, sta, lq_sta, tbl, index);
 
 	rs_stay_in_table(lq_sta, false);
 
@@ -2113,7 +2115,7 @@ lq_update:
 			IWL_DEBUG_RATE(mvm,
 				       "Switch current  mcs: %X index: %d\n",
 				       tbl->current_rate, index);
-			rs_fill_link_cmd(mvm, lq_sta, tbl->current_rate);
+			rs_fill_link_cmd(mvm, sta, lq_sta, tbl->current_rate);
 			iwl_mvm_send_lq_cmd(mvm, &lq_sta->lq, CMD_ASYNC, false);
 		} else {
 			done_search = 1;
@@ -2216,7 +2218,7 @@ static void rs_initialize_lq(struct iwl_mvm *mvm,
 	rate = rate_n_flags_from_tbl(mvm, tbl, rate_idx);
 	tbl->current_rate = rate;
 	rs_set_expected_tpt_table(lq_sta, tbl);
-	rs_fill_link_cmd(NULL, lq_sta, rate);
+	rs_fill_link_cmd(NULL, NULL, lq_sta, rate);
 	/* TODO restore station should remember the lq cmd */
 	iwl_mvm_send_lq_cmd(mvm, &lq_sta->lq, CMD_SYNC, true);
 }
@@ -2418,6 +2420,7 @@ void iwl_mvm_rs_rate_init(struct iwl_mvm *mvm, struct ieee80211_sta *sta,
 }
 
 static void rs_fill_link_cmd(struct iwl_mvm *mvm,
+			     struct ieee80211_sta *sta,
 			     struct iwl_lq_sta *lq_sta, u32 new_rate)
 {
 	struct iwl_scale_tbl_info tbl_type;
@@ -2535,6 +2538,10 @@ static void rs_fill_link_cmd(struct iwl_mvm *mvm,
 	lq_cmd->agg_time_limit =
 		cpu_to_le16(LINK_QUAL_AGG_TIME_LIMIT_DEF);
 
+	if (sta)
+		lq_cmd->agg_time_limit =
+			cpu_to_le16(iwl_mvm_bt_coex_agg_time_limit(mvm, sta));
+
 	/*
 	 * overwrite if needed, pass aggregation time limit
 	 * to uCode in uSec - This is racy - but heh, at least it helps...
-- 
cgit 


From d1d5e3cda07fc8ddc6c9dc768eca50c17d675abc Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Wed, 11 Sep 2013 13:33:28 +0300
Subject: iwlwifi: mvm: BT Coex - set the proper LUT for single ant devices

Single shared antenna devices need a special LUT.
Address this need.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/bt-coex.c | 54 ++++++++++++++++++++++++++++--
 1 file changed, 52 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index 57a7503030fc..a007790223d9 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -131,6 +131,51 @@ static const __le32 iwl_bt_prio_boost[BT_COEX_BOOST_SIZE] = {
 	cpu_to_le32(0xff00ff00),
 };
 
+static const __le32 iwl_single_shared_ant[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
+	{
+		cpu_to_le32(0x40000000),
+		cpu_to_le32(0x00000000),
+		cpu_to_le32(0x44000000),
+		cpu_to_le32(0x00000000),
+		cpu_to_le32(0x40000000),
+		cpu_to_le32(0x00000000),
+		cpu_to_le32(0x44000000),
+		cpu_to_le32(0x00000000),
+		cpu_to_le32(0xc0004000),
+		cpu_to_le32(0xf0005000),
+		cpu_to_le32(0xc0004000),
+		cpu_to_le32(0xf0005000),
+	},
+	{
+		cpu_to_le32(0x40000000),
+		cpu_to_le32(0x00000000),
+		cpu_to_le32(0x44000000),
+		cpu_to_le32(0x00000000),
+		cpu_to_le32(0x40000000),
+		cpu_to_le32(0x00000000),
+		cpu_to_le32(0x44000000),
+		cpu_to_le32(0x00000000),
+		cpu_to_le32(0xc0004000),
+		cpu_to_le32(0xf0005000),
+		cpu_to_le32(0xc0004000),
+		cpu_to_le32(0xf0005000),
+	},
+	{
+		cpu_to_le32(0x40000000),
+		cpu_to_le32(0x00000000),
+		cpu_to_le32(0x44000000),
+		cpu_to_le32(0x00000000),
+		cpu_to_le32(0x40000000),
+		cpu_to_le32(0x00000000),
+		cpu_to_le32(0x44000000),
+		cpu_to_le32(0x00000000),
+		cpu_to_le32(0xc0004000),
+		cpu_to_le32(0xf0005000),
+		cpu_to_le32(0xc0004000),
+		cpu_to_le32(0xf0005000),
+	},
+};
+
 static const __le32 iwl_combined_lookup[BT_COEX_MAX_LUT][BT_COEX_LUT_SIZE] = {
 	{
 		/* Tight */
@@ -354,8 +399,13 @@ int iwl_send_bt_init_conf(struct iwl_mvm *mvm)
 					    BT_VALID_TXTX_DELTA_FREQ_THRS |
 					    BT_VALID_TXRX_MAX_FREQ_0);
 
-	memcpy(&bt_cmd->decision_lut, iwl_combined_lookup,
-	       sizeof(iwl_combined_lookup));
+	if (mvm->cfg->bt_shared_single_ant)
+		memcpy(&bt_cmd->decision_lut, iwl_single_shared_ant,
+		       sizeof(iwl_single_shared_ant));
+	else
+		memcpy(&bt_cmd->decision_lut, iwl_combined_lookup,
+		       sizeof(iwl_combined_lookup));
+
 	memcpy(&bt_cmd->bt_prio_boost, iwl_bt_prio_boost,
 	       sizeof(iwl_bt_prio_boost));
 	memcpy(&bt_cmd->bt4_multiprio_lut, iwl_bt_mprio_lut,
-- 
cgit 


From 42550a53db232383ffe8d0c7d0ae9e72e2ca986b Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Wed, 11 Sep 2013 14:16:20 +0300
Subject: iwlwifi: pcie: restart the driver when a command times out

This should really not happen. If it does, restarting is the
only way to recover since the driver and the firmware might
very well be out of sync. Moreover, iwl_op_mode_nic_error
will print data that might help debugging.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/pcie/tx.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index a70a30e2aeb0..b4168415538c 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -1529,7 +1529,6 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans,
 				"Error sending %s: time out after %dms.\n",
 				get_cmd_string(trans_pcie, cmd->id),
 				jiffies_to_msecs(HOST_COMPLETE_TIMEOUT));
-			dump_stack();
 
 			IWL_ERR(trans,
 				"Current CMD queue read_ptr %d write_ptr %d\n",
@@ -1540,6 +1539,9 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans,
 				       "Clearing HCMD_ACTIVE for command %s\n",
 				       get_cmd_string(trans_pcie, cmd->id));
 			ret = -ETIMEDOUT;
+
+			iwl_op_mode_nic_error(trans->op_mode);
+
 			goto cancel;
 		}
 	}
-- 
cgit 


From 64b928c4e2898dea07d5850a0708dceeb118fa3b Mon Sep 17 00:00:00 2001
From: Alexander Bondar <alexander.bondar@intel.com>
Date: Tue, 3 Sep 2013 14:18:03 +0300
Subject: iwlwifi: mvm: Add device wide power command

FW starts using legacy power table command (0x77) for device wide power
settings. Currently this command contains only option flags field.
It can configure the following: CAM (Continuous Active Mode) and
POWER_SAVE_ENABLE debug option. Send this command when firmware is
loaded - D0 and D3.
Note: Setting this command is important to avoid unwanted FW behavior.
It particularly fixes a bug when a device does not drop to low power
after disassociation from AP.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-fw.h           |  3 +
 drivers/net/wireless/iwlwifi/mvm/d3.c           |  4 ++
 drivers/net/wireless/iwlwifi/mvm/debugfs.c      | 82 ++++++++++++-------------
 drivers/net/wireless/iwlwifi/mvm/fw-api-power.h | 27 ++++++++
 drivers/net/wireless/iwlwifi/mvm/fw.c           |  4 ++
 drivers/net/wireless/iwlwifi/mvm/mvm.h          | 11 +++-
 drivers/net/wireless/iwlwifi/mvm/power.c        | 36 +++++++++--
 7 files changed, 120 insertions(+), 47 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-fw.h b/drivers/net/wireless/iwlwifi/iwl-fw.h
index 761794a5e916..7fd886f5a5e0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw.h
@@ -88,6 +88,8 @@
  * @IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_LARGE: new NS offload (large version)
  * @IWL_UCODE_TLV_FLAGS_SCHED_SCAN: this uCode image supports scheduled scan.
  * @IWL_UCODE_TLV_FLAGS_STA_KEY_CMD: new ADD_STA and ADD_STA_KEY command API
+ * @IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD: support device wide power command
+ *	containing CAM (Continuous Active Mode) indication.
  */
 enum iwl_ucode_tlv_flag {
 	IWL_UCODE_TLV_FLAGS_PAN			= BIT(0),
@@ -107,6 +109,7 @@ enum iwl_ucode_tlv_flag {
 	IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_LARGE	= BIT(16),
 	IWL_UCODE_TLV_FLAGS_SCHED_SCAN		= BIT(17),
 	IWL_UCODE_TLV_FLAGS_STA_KEY_CMD		= BIT(19),
+	IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD	= BIT(20),
 };
 
 /* The default calibrate table size if not specified by firmware file */
diff --git a/drivers/net/wireless/iwlwifi/mvm/d3.c b/drivers/net/wireless/iwlwifi/mvm/d3.c
index d08c12b930e5..ab5c1f0e0622 100644
--- a/drivers/net/wireless/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/iwlwifi/mvm/d3.c
@@ -1149,6 +1149,10 @@ static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
 	if (ret)
 		goto out;
 
+	ret = iwl_mvm_power_update_device_mode(mvm);
+	if (ret)
+		goto out;
+
 	ret = iwl_mvm_power_update_mode(mvm, vif);
 	if (ret)
 		goto out;
diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index e943ee125d23..a5813437d262 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -246,60 +246,56 @@ static ssize_t iwl_dbgfs_stations_read(struct file *file, char __user *user_buf,
 	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 }
 
-static ssize_t iwl_dbgfs_power_down_allow_write(struct file *file,
-						const char __user *user_buf,
+static ssize_t iwl_dbgfs_disable_power_off_read(struct file *file,
+						char __user *user_buf,
 						size_t count, loff_t *ppos)
 {
 	struct iwl_mvm *mvm = file->private_data;
-	char buf[8] = {};
-	int allow;
-
-	if (!mvm->ucode_loaded)
-		return -EIO;
-
-	count = min_t(size_t, count, sizeof(buf) - 1);
-	if (copy_from_user(buf, user_buf, count))
-		return -EFAULT;
-
-	if (sscanf(buf, "%d", &allow) != 1)
-		return -EINVAL;
+	char buf[64];
+	int bufsz = sizeof(buf);
+	int pos = 0;
 
-	IWL_DEBUG_POWER(mvm, "%s device power down\n",
-			allow ? "allow" : "prevent");
+	pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d0=%d\n",
+			 mvm->disable_power_off);
+	pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off_d3=%d\n",
+			 mvm->disable_power_off_d3);
 
-	/*
-	 * TODO: Send REPLY_DEBUG_CMD (0xf0) when FW support it
-	 */
-
-	return count;
+	return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
 }
 
-static ssize_t iwl_dbgfs_power_down_d3_allow_write(struct file *file,
-						   const char __user *user_buf,
-						   size_t count, loff_t *ppos)
+static ssize_t iwl_dbgfs_disable_power_off_write(struct file *file,
+						 const char __user *user_buf,
+						 size_t count, loff_t *ppos)
 {
 	struct iwl_mvm *mvm = file->private_data;
-	char buf[8] = {};
-	int allow;
+	char buf[64] = {};
+	int ret;
+	int val;
+
+	if (!mvm->ucode_loaded)
+		return -EIO;
 
 	count = min_t(size_t, count, sizeof(buf) - 1);
 	if (copy_from_user(buf, user_buf, count))
 		return -EFAULT;
 
-	if (sscanf(buf, "%d", &allow) != 1)
+	if (!strncmp("disable_power_off_d0=", buf, 21)) {
+		if (sscanf(buf + 21, "%d", &val) != 1)
+			return -EINVAL;
+		mvm->disable_power_off = val;
+	} else if (!strncmp("disable_power_off_d3=", buf, 21)) {
+		if (sscanf(buf + 21, "%d", &val) != 1)
+			return -EINVAL;
+		mvm->disable_power_off_d3 = val;
+	} else {
 		return -EINVAL;
+	}
 
-	IWL_DEBUG_POWER(mvm, "%s device power down in d3\n",
-			allow ? "allow" : "prevent");
-
-	/*
-	 * TODO: When WoWLAN FW alive notification happens, driver will send
-	 * REPLY_DEBUG_CMD setting power_down_allow flag according to
-	 * mvm->prevent_power_down_d3
-	 */
-	mvm->prevent_power_down_d3 = !allow;
+	mutex_lock(&mvm->mutex);
+	ret = iwl_mvm_power_update_device_mode(mvm);
+	mutex_unlock(&mvm->mutex);
 
-	return count;
+	return ret ?: count;
 }
 
 static void iwl_dbgfs_update_pm(struct iwl_mvm *mvm,
@@ -397,7 +393,9 @@ static ssize_t iwl_dbgfs_pm_params_write(struct file *file,
 		if (sscanf(buf + 16, "%d", &val) != 1)
 			return -EINVAL;
 		param = MVM_DEBUGFS_PM_TX_DATA_TIMEOUT;
-	} else if (!strncmp("disable_power_off=", buf, 18)) {
+	} else if (!strncmp("disable_power_off=", buf, 18) &&
+		   !(mvm->fw->ucode_capa.flags &
+		     IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD)) {
 		if (sscanf(buf + 18, "%d", &val) != 1)
 			return -EINVAL;
 		param = MVM_DEBUGFS_PM_DISABLE_POWER_OFF;
@@ -1159,8 +1157,7 @@ MVM_DEBUGFS_READ_WRITE_FILE_OPS(sram);
 MVM_DEBUGFS_READ_FILE_OPS(stations);
 MVM_DEBUGFS_READ_FILE_OPS(bt_notif);
 MVM_DEBUGFS_READ_FILE_OPS(bt_cmd);
-MVM_DEBUGFS_WRITE_FILE_OPS(power_down_allow);
-MVM_DEBUGFS_WRITE_FILE_OPS(power_down_d3_allow);
+MVM_DEBUGFS_READ_WRITE_FILE_OPS(disable_power_off);
 MVM_DEBUGFS_READ_FILE_OPS(fw_rx_stats);
 MVM_DEBUGFS_WRITE_FILE_OPS(fw_restart);
 MVM_DEBUGFS_READ_WRITE_FILE_OPS(scan_ant_rxchain);
@@ -1186,8 +1183,9 @@ int iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
 	MVM_DEBUGFS_ADD_FILE(stations, dbgfs_dir, S_IRUSR);
 	MVM_DEBUGFS_ADD_FILE(bt_notif, dbgfs_dir, S_IRUSR);
 	MVM_DEBUGFS_ADD_FILE(bt_cmd, dbgfs_dir, S_IRUSR);
-	MVM_DEBUGFS_ADD_FILE(power_down_allow, mvm->debugfs_dir, S_IWUSR);
-	MVM_DEBUGFS_ADD_FILE(power_down_d3_allow, mvm->debugfs_dir, S_IWUSR);
+	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD)
+		MVM_DEBUGFS_ADD_FILE(disable_power_off, mvm->debugfs_dir,
+				     S_IRUSR | S_IWUSR);
 	MVM_DEBUGFS_ADD_FILE(fw_rx_stats, mvm->debugfs_dir, S_IRUSR);
 	MVM_DEBUGFS_ADD_FILE(fw_restart, mvm->debugfs_dir, S_IWUSR);
 	MVM_DEBUGFS_ADD_FILE(scan_ant_rxchain, mvm->debugfs_dir,
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
index eac7a68c802e..5cb93ae5cd2f 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-power.h
@@ -131,6 +131,33 @@ struct iwl_powertable_cmd {
 	__le32 lprx_rssi_threshold;
 } __packed;
 
+/**
+ * enum iwl_device_power_flags - masks for device power command flags
+ * @DEVIC_POWER_FLAGS_POWER_SAVE_ENA_MSK: '1' Allow to save power by turning off
+ *	receiver and transmitter. '0' - does not allow. This flag should be
+ *	always set to '1' unless one need to disable actual power down for debug
+ *	purposes.
+ * @DEVICE_POWER_FLAGS_CAM_MSK: '1' CAM (Continuous Active Mode) is set, meaning
+ *	that power management is disabled. '0' Power management is enabled, one
+ *	of power schemes is applied.
+*/
+enum iwl_device_power_flags {
+	DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK	= BIT(0),
+	DEVICE_POWER_FLAGS_CAM_MSK		= BIT(13),
+};
+
+/**
+ * struct iwl_device_power_cmd - device wide power command.
+ * DEVICE_POWER_CMD = 0x77 (command, has simple generic response)
+ *
+ * @flags:	Power table command flags from DEVICE_POWER_FLAGS_*
+ */
+struct iwl_device_power_cmd {
+	/* PM_POWER_TABLE_CMD_API_S_VER_6 */
+	__le16 flags;
+	__le16 reserved;
+} __packed;
+
 /**
  * struct iwl_mac_power_cmd - New power command containing uAPSD support
  * MAC_PM_POWER_TABLE = 0xA9 (command, has simple generic response)
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c
index f96186f28035..8c784e622802 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/iwlwifi/mvm/fw.c
@@ -428,6 +428,10 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
 			goto error;
 	}
 
+	ret = iwl_mvm_power_update_device_mode(mvm);
+	if (ret)
+		goto error;
+
 	IWL_DEBUG_INFO(mvm, "RT uCode started.\n");
 	return 0;
  error:
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 6387d2d7722b..a5d609749755 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -162,6 +162,7 @@ enum iwl_power_scheme {
 struct iwl_mvm_power_ops {
 	int (*power_update_mode)(struct iwl_mvm *mvm,
 				 struct ieee80211_vif *vif);
+	int (*power_update_device_mode)(struct iwl_mvm *mvm);
 	int (*power_disable)(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 	int (*power_dbgfs_read)(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
@@ -489,7 +490,8 @@ struct iwl_mvm {
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 	struct dentry *debugfs_dir;
 	u32 dbgfs_sram_offset, dbgfs_sram_len;
-	bool prevent_power_down_d3;
+	bool disable_power_off;
+	bool disable_power_off_d3;
 #endif
 
 	struct iwl_mvm_phy_ctxt phy_ctxts[NUM_PHY_CTX];
@@ -756,6 +758,13 @@ static inline int iwl_mvm_power_disable(struct iwl_mvm *mvm,
 	return mvm->pm_ops->power_disable(mvm, vif);
 }
 
+static inline int iwl_mvm_power_update_device_mode(struct iwl_mvm *mvm)
+{
+	if (mvm->pm_ops->power_update_device_mode)
+		return mvm->pm_ops->power_update_device_mode(mvm);
+	return 0;
+}
+
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 static inline int iwl_mvm_power_dbgfs_read(struct iwl_mvm *mvm,
 					    struct ieee80211_vif *vif,
diff --git a/drivers/net/wireless/iwlwifi/mvm/power.c b/drivers/net/wireless/iwlwifi/mvm/power.c
index 3752ddd0b2e0..80d5f88a9d32 100644
--- a/drivers/net/wireless/iwlwifi/mvm/power.c
+++ b/drivers/net/wireless/iwlwifi/mvm/power.c
@@ -443,6 +443,32 @@ static int iwl_mvm_power_mac_disable(struct iwl_mvm *mvm,
 				    sizeof(cmd), &cmd);
 }
 
+static int iwl_mvm_power_update_device(struct iwl_mvm *mvm)
+{
+	struct iwl_device_power_cmd cmd = {
+		.flags = cpu_to_le16(DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK),
+	};
+
+	if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD))
+		return 0;
+
+	if (iwlmvm_mod_params.power_scheme == IWL_POWER_SCHEME_CAM)
+		cmd.flags |= cpu_to_le16(DEVICE_POWER_FLAGS_CAM_MSK);
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+	if ((mvm->cur_ucode == IWL_UCODE_WOWLAN) ? mvm->disable_power_off_d3 :
+	    mvm->disable_power_off)
+		cmd.flags &=
+			cpu_to_le16(~DEVICE_POWER_FLAGS_POWER_SAVE_ENA_MSK);
+#endif
+	IWL_DEBUG_POWER(mvm,
+			"Sending device power command with flags = 0x%X\n",
+			cmd.flags);
+
+	return iwl_mvm_send_cmd_pdu(mvm, POWER_TABLE_CMD, CMD_SYNC, sizeof(cmd),
+				    &cmd);
+}
+
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 static int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm,
 					struct ieee80211_vif *vif, char *buf,
@@ -453,10 +479,11 @@ static int iwl_mvm_power_mac_dbgfs_read(struct iwl_mvm *mvm,
 
 	iwl_mvm_power_build_cmd(mvm, vif, &cmd);
 
-	pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off = %d\n",
-			 (cmd.flags &
-			 cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK)) ?
-			 0 : 1);
+	if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD))
+		pos += scnprintf(buf+pos, bufsz-pos, "disable_power_off = %d\n",
+				 (cmd.flags &
+				 cpu_to_le16(POWER_FLAGS_POWER_SAVE_ENA_MSK)) ?
+				 0 : 1);
 	pos += scnprintf(buf+pos, bufsz-pos, "power_scheme = %d\n",
 			 iwlmvm_mod_params.power_scheme);
 	pos += scnprintf(buf+pos, bufsz-pos, "flags = 0x%x\n",
@@ -622,6 +649,7 @@ int iwl_mvm_update_beacon_filter(struct iwl_mvm *mvm,
 
 const struct iwl_mvm_power_ops pm_mac_ops = {
 	.power_update_mode = iwl_mvm_power_mac_update_mode,
+	.power_update_device_mode = iwl_mvm_power_update_device,
 	.power_disable = iwl_mvm_power_mac_disable,
 #ifdef CONFIG_IWLWIFI_DEBUGFS
 	.power_dbgfs_read = iwl_mvm_power_mac_dbgfs_read,
-- 
cgit 


From 81a67e32c444f05b9f7ba5d33c9221db9d0133e1 Mon Sep 17 00:00:00 2001
From: Eytan Lifshitz <eytan.lifshitz@intel.com>
Date: Wed, 11 Sep 2013 12:39:18 +0200
Subject: iwlwifi: mvm: prevent the NIC to be powered at driver load time.

Some NICs aren't allowed to be powered up at driver load time.
Fix it, and move the external NVM loading from driver load time to
driver up time (parsing the external nvm file remains at driver load time).

Signed-off-by: Eytan Lifshitz <eytan.lifshitz@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/fw.c  |  5 ++
 drivers/net/wireless/iwlwifi/mvm/mvm.h |  1 +
 drivers/net/wireless/iwlwifi/mvm/nvm.c | 99 ++++++++++++++++++++++------------
 drivers/net/wireless/iwlwifi/mvm/ops.c | 41 ++++++++------
 4 files changed, 97 insertions(+), 49 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c
index 8c784e622802..f171dca83cd2 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/iwlwifi/mvm/fw.c
@@ -264,6 +264,7 @@ int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm)
 	if (ret)
 		goto error;
 
+	/* Read the NVM only at driver load time, no need to do this twice */
 	if (read_nvm) {
 		/* Read nvm */
 		ret = iwl_nvm_init(mvm);
@@ -273,6 +274,10 @@ int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm)
 		}
 	}
 
+	/* In case we read the NVM from external file, load it to the NIC */
+	if (iwlwifi_mod_params.nvm_file)
+		iwl_mvm_load_nvm_to_nic(mvm);
+
 	ret = iwl_nvm_check_version(mvm->nvm_data, mvm->trans);
 	WARN_ON(ret);
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index a5d609749755..6bce6e168ae4 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -629,6 +629,7 @@ int iwl_mvm_rx_statistics(struct iwl_mvm *mvm,
 
 /* NVM */
 int iwl_nvm_init(struct iwl_mvm *mvm);
+int iwl_mvm_load_nvm_to_nic(struct iwl_mvm *mvm);
 
 int iwl_mvm_up(struct iwl_mvm *mvm);
 int iwl_mvm_load_d3_fw(struct iwl_mvm *mvm);
diff --git a/drivers/net/wireless/iwlwifi/mvm/nvm.c b/drivers/net/wireless/iwlwifi/mvm/nvm.c
index edb94ea31654..e4edda6e5306 100644
--- a/drivers/net/wireless/iwlwifi/mvm/nvm.c
+++ b/drivers/net/wireless/iwlwifi/mvm/nvm.c
@@ -259,6 +259,8 @@ iwl_parse_nvm_sections(struct iwl_mvm *mvm)
 #define MAX_NVM_FILE_LEN	16384
 
 /*
+ * Reads external NVM from a file into mvm->nvm_sections
+ *
  * HOW TO CREATE THE NVM FILE FORMAT:
  * ------------------------------
  * 1. create hex file, format:
@@ -277,20 +279,23 @@ iwl_parse_nvm_sections(struct iwl_mvm *mvm)
  *
  * 4. save as "iNVM_xxx.bin" under /lib/firmware
  */
-static int iwl_mvm_load_external_nvm(struct iwl_mvm *mvm)
+static int iwl_mvm_read_external_nvm(struct iwl_mvm *mvm)
 {
-	int ret, section_id, section_size;
+	int ret, section_size;
+	u16 section_id;
 	const struct firmware *fw_entry;
 	const struct {
 		__le16 word1;
 		__le16 word2;
 		u8 data[];
 	} *file_sec;
-	const u8 *eof;
+	const u8 *eof, *temp;
 
 #define NVM_WORD1_LEN(x) (8 * (x & 0x03FF))
 #define NVM_WORD2_ID(x) (x >> 12)
 
+	IWL_DEBUG_EEPROM(mvm->trans->dev, "Read from external NVM\n");
+
 	/*
 	 * Obtain NVM image via request_firmware. Since we already used
 	 * request_firmware_nowait() for the firmware binary load and only
@@ -362,12 +367,18 @@ static int iwl_mvm_load_external_nvm(struct iwl_mvm *mvm)
 			break;
 		}
 
-		ret = iwl_nvm_write_section(mvm, section_id, file_sec->data,
-					    section_size);
-		if (ret < 0) {
-			IWL_ERR(mvm, "iwl_mvm_send_cmd failed: %d\n", ret);
+		temp = kmemdup(file_sec->data, section_size, GFP_KERNEL);
+		if (!temp) {
+			ret = -ENOMEM;
+			break;
+		}
+		if (WARN_ON(section_id >= NVM_NUM_OF_SECTIONS)) {
+			IWL_ERR(mvm, "Invalid NVM section ID\n");
+			ret = -EINVAL;
 			break;
 		}
+		mvm->nvm_sections[section_id].data = temp;
+		mvm->nvm_sections[section_id].length = section_size;
 
 		/* advance to the next section */
 		file_sec = (void *)(file_sec->data + section_size);
@@ -377,6 +388,28 @@ out:
 	return ret;
 }
 
+/* Loads the NVM data stored in mvm->nvm_sections into the NIC */
+int iwl_mvm_load_nvm_to_nic(struct iwl_mvm *mvm)
+{
+	int i, ret;
+	u16 section_id;
+	struct iwl_nvm_section *sections = mvm->nvm_sections;
+
+	IWL_DEBUG_EEPROM(mvm->trans->dev, "'Write to NVM\n");
+
+	for (i = 0; i < ARRAY_SIZE(nvm_to_read); i++) {
+		section_id = nvm_to_read[i];
+		ret = iwl_nvm_write_section(mvm, section_id,
+					    sections[section_id].data,
+					    sections[section_id].length);
+		if (ret < 0) {
+			IWL_ERR(mvm, "iwl_mvm_send_cmd failed: %d\n", ret);
+			break;
+		}
+	}
+	return ret;
+}
+
 int iwl_nvm_init(struct iwl_mvm *mvm)
 {
 	int ret, i, section;
@@ -385,36 +418,36 @@ int iwl_nvm_init(struct iwl_mvm *mvm)
 	/* load external NVM if configured */
 	if (iwlwifi_mod_params.nvm_file) {
 		/* move to External NVM flow */
-		ret = iwl_mvm_load_external_nvm(mvm);
+		ret = iwl_mvm_read_external_nvm(mvm);
 		if (ret)
 			return ret;
-	}
-
-	/* Read From FW NVM */
-	IWL_DEBUG_EEPROM(mvm->trans->dev, "Read from NVM\n");
-
-	/* TODO: find correct NVM max size for a section */
-	nvm_buffer = kmalloc(mvm->cfg->base_params->eeprom_size,
-			     GFP_KERNEL);
-	if (!nvm_buffer)
-		return -ENOMEM;
-	for (i = 0; i < ARRAY_SIZE(nvm_to_read); i++) {
-		section = nvm_to_read[i];
-		/* we override the constness for initial read */
-		ret = iwl_nvm_read_section(mvm, section, nvm_buffer);
-		if (ret < 0)
-			break;
-		temp = kmemdup(nvm_buffer, ret, GFP_KERNEL);
-		if (!temp) {
-			ret = -ENOMEM;
-			break;
+	} else {
+		/* Read From FW NVM */
+		IWL_DEBUG_EEPROM(mvm->trans->dev, "Read from NVM\n");
+
+		/* TODO: find correct NVM max size for a section */
+		nvm_buffer = kmalloc(mvm->cfg->base_params->eeprom_size,
+				     GFP_KERNEL);
+		if (!nvm_buffer)
+			return -ENOMEM;
+		for (i = 0; i < ARRAY_SIZE(nvm_to_read); i++) {
+			section = nvm_to_read[i];
+			/* we override the constness for initial read */
+			ret = iwl_nvm_read_section(mvm, section, nvm_buffer);
+			if (ret < 0)
+				break;
+			temp = kmemdup(nvm_buffer, ret, GFP_KERNEL);
+			if (!temp) {
+				ret = -ENOMEM;
+				break;
+			}
+			mvm->nvm_sections[section].data = temp;
+			mvm->nvm_sections[section].length = ret;
 		}
-		mvm->nvm_sections[section].data = temp;
-		mvm->nvm_sections[section].length = ret;
+		kfree(nvm_buffer);
+		if (ret < 0)
+			return ret;
 	}
-	kfree(nvm_buffer);
-	if (ret < 0)
-		return ret;
 
 	mvm->nvm_data = iwl_parse_nvm_sections(mvm);
 	if (!mvm->nvm_data)
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index a8af7aceeaca..d232e83994df 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -409,24 +409,32 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 	IWL_INFO(mvm, "Detected %s, REV=0x%X\n",
 		 mvm->cfg->name, mvm->trans->hw_rev);
 
-	err = iwl_trans_start_hw(mvm->trans);
-	if (err)
-		goto out_free;
-
 	iwl_mvm_tt_initialize(mvm);
 
-	mutex_lock(&mvm->mutex);
-	err = iwl_run_init_mvm_ucode(mvm, true);
-	mutex_unlock(&mvm->mutex);
-	/* returns 0 if successful, 1 if success but in rfkill */
-	if (err < 0 && !iwlmvm_mod_params.init_dbg) {
-		IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err);
-		goto out_free;
-	}
+	/*
+	 * If the NVM exists in an external file,
+	 * there is no need to unnecessarily power up the NIC at driver load
+	 */
+	if (iwlwifi_mod_params.nvm_file) {
+			iwl_nvm_init(mvm);
+	} else {
+		err = iwl_trans_start_hw(mvm->trans);
+		if (err)
+			goto out_free;
+
+		mutex_lock(&mvm->mutex);
+		err = iwl_run_init_mvm_ucode(mvm, true);
+		mutex_unlock(&mvm->mutex);
+		/* returns 0 if successful, 1 if success but in rfkill */
+		if (err < 0 && !iwlmvm_mod_params.init_dbg) {
+			IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", err);
+			goto out_free;
+		}
 
-	/* Stop the hw after the ALIVE and NVM has been read */
-	if (!iwlmvm_mod_params.init_dbg)
-		iwl_trans_stop_hw(mvm->trans, false);
+		/* Stop the hw after the ALIVE and NVM has been read */
+		if (!iwlmvm_mod_params.init_dbg)
+			iwl_trans_stop_hw(mvm->trans, false);
+	}
 
 	scan_size = sizeof(struct iwl_scan_cmd) +
 		mvm->fw->ucode_capa.max_probe_length +
@@ -457,7 +465,8 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
  out_free:
 	iwl_phy_db_free(mvm->phy_db);
 	kfree(mvm->scan_cmd);
-	iwl_trans_stop_hw(trans, true);
+	if (!iwlwifi_mod_params.nvm_file)
+		iwl_trans_stop_hw(trans, true);
 	ieee80211_free_hw(mvm->hw);
 	return NULL;
 }
-- 
cgit 


From 19e737c98479f040e23987e50596a861e5e88b92 Mon Sep 17 00:00:00 2001
From: Eytan Lifshitz <eytan.lifshitz@intel.com>
Date: Mon, 9 Sep 2013 13:30:15 +0200
Subject: iwlwifi: mvm: add support for NICs which have only 16 Tx queues.

Some NICs embedded in platforms that have only 16 Tx queues,
this affect the mapping of the Tx queues.

Signed-off-by: Eytan Lifshitz <eytan.lifshitz@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Gregory Greenman <gregory.greenman@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/fw-api.h   | 12 ++++++------
 drivers/net/wireless/iwlwifi/mvm/fw.c       |  2 +-
 drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c | 12 ++++++------
 drivers/net/wireless/iwlwifi/mvm/mac80211.c |  2 +-
 drivers/net/wireless/iwlwifi/mvm/mvm.h      |  5 +++++
 drivers/net/wireless/iwlwifi/mvm/ops.c      |  8 ++++++++
 drivers/net/wireless/iwlwifi/mvm/sta.c      |  6 +++---
 drivers/net/wireless/iwlwifi/mvm/tx.c       | 10 +++++-----
 8 files changed, 35 insertions(+), 22 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api.h b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
index c42424c69183..bad5a552dd8d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api.h
@@ -72,17 +72,17 @@
 #include "fw-api-d3.h"
 #include "fw-api-bt-coex.h"
 
-/* queue and FIFO numbers by usage */
+/* maximal number of Tx queues in any platform */
+#define IWL_MVM_MAX_QUEUES	20
+
+/* Tx queue numbers */
 enum {
 	IWL_MVM_OFFCHANNEL_QUEUE = 8,
 	IWL_MVM_CMD_QUEUE = 9,
-	IWL_MVM_AUX_QUEUE = 15,
-	IWL_MVM_FIRST_AGG_QUEUE = 16,
-	IWL_MVM_NUM_QUEUES = 20,
-	IWL_MVM_LAST_AGG_QUEUE = IWL_MVM_NUM_QUEUES - 1,
-	IWL_MVM_CMD_FIFO = 7
 };
 
+#define IWL_MVM_CMD_FIFO	7
+
 #define IWL_MVM_STATION_COUNT	16
 
 /* commands */
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c
index f171dca83cd2..83fc5ca04433 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/iwlwifi/mvm/fw.c
@@ -199,7 +199,7 @@ static int iwl_mvm_load_ucode_wait_alive(struct iwl_mvm *mvm,
 	 */
 
 	for (i = 0; i < IWL_MAX_HW_QUEUES; i++) {
-		if (i < IWL_MVM_FIRST_AGG_QUEUE && i != IWL_MVM_CMD_QUEUE)
+		if (i < mvm->first_agg_queue && i != IWL_MVM_CMD_QUEUE)
 			mvm->queue_to_mac80211[i] = i;
 		else
 			mvm->queue_to_mac80211[i] = IWL_INVALID_MAC80211_QUEUE;
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index c01cf17eedb2..196c4ebb186f 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -80,7 +80,7 @@ struct iwl_mvm_mac_iface_iterator_data {
 	struct ieee80211_vif *vif;
 	unsigned long available_mac_ids[BITS_TO_LONGS(NUM_MAC_INDEX_DRIVER)];
 	unsigned long available_tsf_ids[BITS_TO_LONGS(NUM_TSF_IDS)];
-	unsigned long used_hw_queues[BITS_TO_LONGS(IWL_MVM_FIRST_AGG_QUEUE)];
+	unsigned long used_hw_queues[BITS_TO_LONGS(IWL_MVM_MAX_QUEUES)];
 	enum iwl_tsf_id preferred_tsf;
 	bool found_vif;
 };
@@ -218,7 +218,7 @@ static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm,
 		.preferred_tsf = NUM_TSF_IDS,
 		.used_hw_queues = {
 			BIT(IWL_MVM_OFFCHANNEL_QUEUE) |
-			BIT(IWL_MVM_AUX_QUEUE) |
+			BIT(mvm->aux_queue) |
 			BIT(IWL_MVM_CMD_QUEUE)
 		},
 		.found_vif = false,
@@ -302,9 +302,9 @@ static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm,
 	/* Find available queues, and allocate them to the ACs */
 	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
 		u8 queue = find_first_zero_bit(data.used_hw_queues,
-					       IWL_MVM_FIRST_AGG_QUEUE);
+					       mvm->first_agg_queue);
 
-		if (queue >= IWL_MVM_FIRST_AGG_QUEUE) {
+		if (queue >= mvm->first_agg_queue) {
 			IWL_ERR(mvm, "Failed to allocate queue\n");
 			ret = -EIO;
 			goto exit_fail;
@@ -317,9 +317,9 @@ static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm,
 	/* Allocate the CAB queue for softAP and GO interfaces */
 	if (vif->type == NL80211_IFTYPE_AP) {
 		u8 queue = find_first_zero_bit(data.used_hw_queues,
-					       IWL_MVM_FIRST_AGG_QUEUE);
+					       mvm->first_agg_queue);
 
-		if (queue >= IWL_MVM_FIRST_AGG_QUEUE) {
+		if (queue >= mvm->first_agg_queue) {
 			IWL_ERR(mvm, "Failed to allocate cab queue\n");
 			ret = -EIO;
 			goto exit_fail;
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index a42c6bb1b0e8..f9eb708d2c33 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -167,7 +167,7 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 		    IEEE80211_HW_SUPPORTS_STATIC_SMPS |
 		    IEEE80211_HW_SUPPORTS_UAPSD;
 
-	hw->queues = IWL_MVM_FIRST_AGG_QUEUE;
+	hw->queues = mvm->first_agg_queue;
 	hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
 	hw->rate_control_algorithm = "iwl-mvm-rs";
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 6bce6e168ae4..3e29d3c91617 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -547,6 +547,11 @@ struct iwl_mvm {
 	u32 noa_duration;
 	struct ieee80211_vif *noa_vif;
 #endif
+
+	/* Tx queues */
+	u8 aux_queue;
+	u8 first_agg_queue;
+	u8 last_agg_queue;
 };
 
 /* Extract MVM priv from op_mode and _hw */
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index d232e83994df..59b7cb3c6134 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -352,6 +352,14 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 
 	mvm->restart_fw = iwlwifi_mod_params.restart_fw ? -1 : 0;
 
+	mvm->aux_queue = 15;
+	mvm->first_agg_queue = 16;
+	mvm->last_agg_queue = mvm->cfg->base_params->num_of_queues - 1;
+	if (mvm->cfg->base_params->num_of_queues == 16) {
+		mvm->aux_queue = 11;
+		mvm->first_agg_queue = 12;
+	}
+
 	mutex_init(&mvm->mutex);
 	spin_lock_init(&mvm->async_handlers_lock);
 	INIT_LIST_HEAD(&mvm->time_event_list);
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c
index fa900c75c509..b320350e0226 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.c
@@ -847,13 +847,13 @@ int iwl_mvm_sta_tx_agg_start(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 
 	lockdep_assert_held(&mvm->mutex);
 
-	for (txq_id = IWL_MVM_FIRST_AGG_QUEUE;
-	     txq_id <= IWL_MVM_LAST_AGG_QUEUE; txq_id++)
+	for (txq_id = mvm->first_agg_queue;
+	     txq_id <= mvm->last_agg_queue; txq_id++)
 		if (mvm->queue_to_mac80211[txq_id] ==
 		    IWL_INVALID_MAC80211_QUEUE)
 			break;
 
-	if (txq_id > IWL_MVM_LAST_AGG_QUEUE) {
+	if (txq_id > mvm->last_agg_queue) {
 		IWL_ERR(mvm, "Failed to allocate agg queue\n");
 		return -EIO;
 	}
diff --git a/drivers/net/wireless/iwlwifi/mvm/tx.c b/drivers/net/wireless/iwlwifi/mvm/tx.c
index 1606e1da5b0c..43d97c33a75a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/tx.c
@@ -417,7 +417,7 @@ int iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
 
 	spin_unlock(&mvmsta->lock);
 
-	if (txq_id < IWL_MVM_FIRST_AGG_QUEUE)
+	if (txq_id < mvm->first_agg_queue)
 		atomic_inc(&mvm->pending_frames[mvmsta->sta_id]);
 
 	return 0;
@@ -613,7 +613,7 @@ static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm,
 					    info);
 
 		/* Single frame failure in an AMPDU queue => send BAR */
-		if (txq_id >= IWL_MVM_FIRST_AGG_QUEUE &&
+		if (txq_id >= mvm->first_agg_queue &&
 		    !(info->flags & IEEE80211_TX_STAT_ACK))
 			info->flags |= IEEE80211_TX_STAT_AMPDU_NO_BACK;
 
@@ -626,7 +626,7 @@ static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm,
 		ieee80211_tx_status_ni(mvm->hw, skb);
 	}
 
-	if (txq_id >= IWL_MVM_FIRST_AGG_QUEUE) {
+	if (txq_id >= mvm->first_agg_queue) {
 		/* If this is an aggregation queue, we use the ssn since:
 		 * ssn = wifi seq_num % 256.
 		 * The seq_ctl is the sequence control of the packet to which
@@ -684,7 +684,7 @@ static void iwl_mvm_rx_tx_cmd_single(struct iwl_mvm *mvm,
 	 * If the txq is not an AMPDU queue, there is no chance we freed
 	 * several skbs. Check that out...
 	 */
-	if (txq_id < IWL_MVM_FIRST_AGG_QUEUE && !WARN_ON(skb_freed > 1) &&
+	if (txq_id < mvm->first_agg_queue && !WARN_ON(skb_freed > 1) &&
 	    atomic_sub_and_test(skb_freed, &mvm->pending_frames[sta_id])) {
 		if (mvmsta) {
 			/*
@@ -780,7 +780,7 @@ static void iwl_mvm_rx_tx_cmd_agg(struct iwl_mvm *mvm,
 	u16 sequence = le16_to_cpu(pkt->hdr.sequence);
 	struct ieee80211_sta *sta;
 
-	if (WARN_ON_ONCE(SEQ_TO_QUEUE(sequence) < IWL_MVM_FIRST_AGG_QUEUE))
+	if (WARN_ON_ONCE(SEQ_TO_QUEUE(sequence) < mvm->first_agg_queue))
 		return;
 
 	if (WARN_ON_ONCE(tid == IWL_TID_NON_QOS))
-- 
cgit 


From 6d9d32b89ab0f9cbd182f807cc484e66e15c6972 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 6 Aug 2013 18:58:56 +0200
Subject: iwlwifi: mvm: keep connection to AP after WoWLAN

Until now, after WoWLAN, we weren't able to keep the
connection to the AP because the firmware didn't give
us the right information. Since the firmware API has
been changed to include all the information we need,
change the driver to work with the new API (if it is
available) and program all the relevant information
in mac80211 to keep the connection.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-fw.h         |   3 +
 drivers/net/wireless/iwlwifi/mvm/d3.c         | 383 ++++++++++++++++++++++++--
 drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h  |  25 +-
 drivers/net/wireless/iwlwifi/mvm/fw-api-mac.h |   9 +
 drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c   |   3 +
 drivers/net/wireless/iwlwifi/mvm/mvm.h        |  12 +
 drivers/net/wireless/iwlwifi/mvm/sta.c        |   8 +-
 7 files changed, 420 insertions(+), 23 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-fw.h b/drivers/net/wireless/iwlwifi/iwl-fw.h
index 7fd886f5a5e0..6bdae0e9dd78 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw.h
@@ -84,6 +84,8 @@
  * @IWL_UCODE_TLV_FLAGS_BF_UPDATED: new beacon filtering API
  * @IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID: not sending a probe with the SSID element
  *	from the probe request template.
+ * @IWL_UCODE_TLV_FLAGS_D3_CONTINUITY_API: modified D3 API to allow keeping
+ *	connection when going back to D0
  * @IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL: new NS offload (small version)
  * @IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_LARGE: new NS offload (large version)
  * @IWL_UCODE_TLV_FLAGS_SCHED_SCAN: this uCode image supports scheduled scan.
@@ -105,6 +107,7 @@ enum iwl_ucode_tlv_flag {
 	IWL_UCODE_TLV_FLAGS_D3_6_IPV6_ADDRS	= BIT(10),
 	IWL_UCODE_TLV_FLAGS_BF_UPDATED		= BIT(11),
 	IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID	= BIT(12),
+	IWL_UCODE_TLV_FLAGS_D3_CONTINUITY_API	= BIT(14),
 	IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_SMALL	= BIT(15),
 	IWL_UCODE_TLV_FLAGS_NEW_NSOFFL_LARGE	= BIT(16),
 	IWL_UCODE_TLV_FLAGS_SCHED_SCAN		= BIT(17),
diff --git a/drivers/net/wireless/iwlwifi/mvm/d3.c b/drivers/net/wireless/iwlwifi/mvm/d3.c
index ab5c1f0e0622..6f45966817bb 100644
--- a/drivers/net/wireless/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/iwlwifi/mvm/d3.c
@@ -863,6 +863,13 @@ static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm,
 				       struct ieee80211_vif *vif)
 {
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	struct iwl_nonqos_seq_query_cmd query_cmd = {
+		.get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET),
+		.mac_id_n_color =
+			cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
+							mvmvif->color)),
+	};
 	struct iwl_host_cmd cmd = {
 		.id = NON_QOS_TX_COUNTER_CMD,
 		.flags = CMD_SYNC | CMD_WANT_SKB,
@@ -870,21 +877,57 @@ static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm,
 	int err;
 	u32 size;
 
+	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_D3_CONTINUITY_API) {
+		cmd.data[0] = &query_cmd;
+		cmd.len[0] = sizeof(query_cmd);
+	}
+
 	err = iwl_mvm_send_cmd(mvm, &cmd);
 	if (err)
 		return err;
 
 	size = le32_to_cpu(cmd.resp_pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
 	size -= sizeof(cmd.resp_pkt->hdr);
-	if (size != sizeof(__le32))
+	if (size < sizeof(__le16)) {
 		err = -EINVAL;
-	else
-		err = le32_to_cpup((__le32 *)cmd.resp_pkt->data);
+	} else {
+		err = le16_to_cpup((__le16 *)cmd.resp_pkt->data);
+		/* new API returns next, not last-used seqno */
+		if (mvm->fw->ucode_capa.flags &
+				IWL_UCODE_TLV_FLAGS_D3_CONTINUITY_API)
+			err -= 0x10;
+	}
 
 	iwl_free_resp(&cmd);
 	return err;
 }
 
+void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
+{
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	struct iwl_nonqos_seq_query_cmd query_cmd = {
+		.get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET),
+		.mac_id_n_color =
+			cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
+							mvmvif->color)),
+		.value = cpu_to_le16(mvmvif->seqno),
+	};
+
+	/* return if called during restart, not resume from D3 */
+	if (!mvmvif->seqno_valid)
+		return;
+
+	mvmvif->seqno_valid = false;
+
+	if (!(mvm->fw->ucode_capa.flags &
+			IWL_UCODE_TLV_FLAGS_D3_CONTINUITY_API))
+		return;
+
+	if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, CMD_SYNC,
+				 sizeof(query_cmd), &query_cmd))
+		IWL_ERR(mvm, "failed to set non-QoS seqno\n");
+}
+
 static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
 			     struct cfg80211_wowlan *wowlan,
 			     bool test)
@@ -1203,16 +1246,26 @@ int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
 	return __iwl_mvm_suspend(hw, wowlan, false);
 }
 
+/* converted data from the different status responses */
+struct iwl_wowlan_status_data {
+	u16 pattern_number;
+	u16 qos_seq_ctr[8];
+	u32 wakeup_reasons;
+	u32 wake_packet_length;
+	u32 wake_packet_bufsize;
+	const u8 *wake_packet;
+};
+
 static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
 					  struct ieee80211_vif *vif,
-					  struct iwl_wowlan_status *status)
+					  struct iwl_wowlan_status_data *status)
 {
 	struct sk_buff *pkt = NULL;
 	struct cfg80211_wowlan_wakeup wakeup = {
 		.pattern_idx = -1,
 	};
 	struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
-	u32 reasons = le32_to_cpu(status->wakeup_reasons);
+	u32 reasons = status->wakeup_reasons;
 
 	if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
 		wakeup_report = NULL;
@@ -1224,7 +1277,7 @@ static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
 
 	if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN)
 		wakeup.pattern_idx =
-			le16_to_cpu(status->pattern_number);
+			status->pattern_number;
 
 	if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
 		       IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH))
@@ -1252,8 +1305,8 @@ static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
 		wakeup.tcp_match = true;
 
 	if (status->wake_packet_bufsize) {
-		int pktsize = le32_to_cpu(status->wake_packet_bufsize);
-		int pktlen = le32_to_cpu(status->wake_packet_length);
+		int pktsize = status->wake_packet_bufsize;
+		int pktlen = status->wake_packet_length;
 		const u8 *pktdata = status->wake_packet;
 		struct ieee80211_hdr *hdr = (void *)pktdata;
 		int truncated = pktlen - pktsize;
@@ -1333,8 +1386,229 @@ static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
 	kfree_skb(pkt);
 }
 
+static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc,
+				  struct ieee80211_key_seq *seq)
+{
+	u64 pn;
+
+	pn = le64_to_cpu(sc->pn);
+	seq->ccmp.pn[0] = pn >> 40;
+	seq->ccmp.pn[1] = pn >> 32;
+	seq->ccmp.pn[2] = pn >> 24;
+	seq->ccmp.pn[3] = pn >> 16;
+	seq->ccmp.pn[4] = pn >> 8;
+	seq->ccmp.pn[5] = pn;
+}
+
+static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc,
+				   struct ieee80211_key_seq *seq)
+{
+	seq->tkip.iv32 = le32_to_cpu(sc->iv32);
+	seq->tkip.iv16 = le16_to_cpu(sc->iv16);
+}
+
+static void iwl_mvm_set_aes_rx_seq(struct aes_sc *scs,
+				   struct ieee80211_key_conf *key)
+{
+	int tid;
+
+	BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS);
+
+	for (tid = 0; tid < IWL_NUM_RSC; tid++) {
+		struct ieee80211_key_seq seq = {};
+
+		iwl_mvm_aes_sc_to_seq(&scs[tid], &seq);
+		ieee80211_set_key_rx_seq(key, tid, &seq);
+	}
+}
+
+static void iwl_mvm_set_tkip_rx_seq(struct tkip_sc *scs,
+				    struct ieee80211_key_conf *key)
+{
+	int tid;
+
+	BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS);
+
+	for (tid = 0; tid < IWL_NUM_RSC; tid++) {
+		struct ieee80211_key_seq seq = {};
+
+		iwl_mvm_tkip_sc_to_seq(&scs[tid], &seq);
+		ieee80211_set_key_rx_seq(key, tid, &seq);
+	}
+}
+
+static void iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf *key,
+				   struct iwl_wowlan_status_v6 *status)
+{
+	union iwl_all_tsc_rsc *rsc = &status->gtk.rsc.all_tsc_rsc;
+
+	switch (key->cipher) {
+	case WLAN_CIPHER_SUITE_CCMP:
+		iwl_mvm_set_aes_rx_seq(rsc->aes.multicast_rsc, key);
+		break;
+	case WLAN_CIPHER_SUITE_TKIP:
+		iwl_mvm_set_tkip_rx_seq(rsc->tkip.multicast_rsc, key);
+		break;
+	default:
+		WARN_ON(1);
+	}
+}
+
+struct iwl_mvm_d3_gtk_iter_data {
+	struct iwl_wowlan_status_v6 *status;
+	void *last_gtk;
+	u32 cipher;
+	bool find_phase, unhandled_cipher;
+	int num_keys;
+};
+
+static void iwl_mvm_d3_update_gtks(struct ieee80211_hw *hw,
+				   struct ieee80211_vif *vif,
+				   struct ieee80211_sta *sta,
+				   struct ieee80211_key_conf *key,
+				   void *_data)
+{
+	struct iwl_mvm_d3_gtk_iter_data *data = _data;
+
+	if (data->unhandled_cipher)
+		return;
+
+	switch (key->cipher) {
+	case WLAN_CIPHER_SUITE_WEP40:
+	case WLAN_CIPHER_SUITE_WEP104:
+		/* ignore WEP completely, nothing to do */
+		return;
+	case WLAN_CIPHER_SUITE_CCMP:
+	case WLAN_CIPHER_SUITE_TKIP:
+		/* we support these */
+		break;
+	default:
+		/* everything else (even CMAC for MFP) - disconnect from AP */
+		data->unhandled_cipher = true;
+		return;
+	}
+
+	data->num_keys++;
+
+	/*
+	 * pairwise key - update sequence counters only;
+	 * note that this assumes no TDLS sessions are active
+	 */
+	if (sta) {
+		struct ieee80211_key_seq seq = {};
+		union iwl_all_tsc_rsc *sc = &data->status->gtk.rsc.all_tsc_rsc;
+
+		if (data->find_phase)
+			return;
+
+		switch (key->cipher) {
+		case WLAN_CIPHER_SUITE_CCMP:
+			iwl_mvm_aes_sc_to_seq(&sc->aes.tsc, &seq);
+			iwl_mvm_set_aes_rx_seq(sc->aes.unicast_rsc, key);
+			break;
+		case WLAN_CIPHER_SUITE_TKIP:
+			iwl_mvm_tkip_sc_to_seq(&sc->tkip.tsc, &seq);
+			iwl_mvm_set_tkip_rx_seq(sc->tkip.unicast_rsc, key);
+			break;
+		}
+		ieee80211_set_key_tx_seq(key, &seq);
+
+		/* that's it for this key */
+		return;
+	}
+
+	if (data->find_phase) {
+		data->last_gtk = key;
+		data->cipher = key->cipher;
+		return;
+	}
+
+	if (data->status->num_of_gtk_rekeys)
+		ieee80211_remove_key(key);
+	else if (data->last_gtk == key)
+		iwl_mvm_set_key_rx_seq(key, data->status);
+}
+
+static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm,
+					  struct ieee80211_vif *vif,
+					  struct iwl_wowlan_status_v6 *status)
+{
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	struct iwl_mvm_d3_gtk_iter_data gtkdata = {
+		.status = status,
+	};
+
+	if (!status || !vif->bss_conf.bssid)
+		return false;
+
+	/* find last GTK that we used initially, if any */
+	gtkdata.find_phase = true;
+	ieee80211_iter_keys(mvm->hw, vif,
+			    iwl_mvm_d3_update_gtks, &gtkdata);
+	/* not trying to keep connections with MFP/unhandled ciphers */
+	if (gtkdata.unhandled_cipher)
+		return false;
+	if (!gtkdata.num_keys)
+		return true;
+	if (!gtkdata.last_gtk)
+		return false;
+
+	/*
+	 * invalidate all other GTKs that might still exist and update
+	 * the one that we used
+	 */
+	gtkdata.find_phase = false;
+	ieee80211_iter_keys(mvm->hw, vif,
+			    iwl_mvm_d3_update_gtks, &gtkdata);
+
+	if (status->num_of_gtk_rekeys) {
+		struct ieee80211_key_conf *key;
+		struct {
+			struct ieee80211_key_conf conf;
+			u8 key[32];
+		} conf = {
+			.conf.cipher = gtkdata.cipher,
+			.conf.keyidx = status->gtk.key_index,
+		};
+
+		switch (gtkdata.cipher) {
+		case WLAN_CIPHER_SUITE_CCMP:
+			conf.conf.keylen = WLAN_KEY_LEN_CCMP;
+			memcpy(conf.conf.key, status->gtk.decrypt_key,
+			       WLAN_KEY_LEN_CCMP);
+			break;
+		case WLAN_CIPHER_SUITE_TKIP:
+			conf.conf.keylen = WLAN_KEY_LEN_TKIP;
+			memcpy(conf.conf.key, status->gtk.decrypt_key, 16);
+			/* leave TX MIC key zeroed, we don't use it anyway */
+			memcpy(conf.conf.key +
+			       NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
+			       status->gtk.tkip_mic_key, 8);
+			break;
+		}
+
+		key = ieee80211_gtk_rekey_add(vif, &conf.conf);
+		if (IS_ERR(key))
+			return false;
+		iwl_mvm_set_key_rx_seq(key, status);
+	}
+
+	if (status->num_of_gtk_rekeys) {
+		__be64 replay_ctr =
+			cpu_to_be64(le64_to_cpu(status->replay_ctr));
+		ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid,
+					   (void *)&replay_ctr, GFP_KERNEL);
+	}
+
+	mvmvif->seqno_valid = true;
+	/* +0x10 because the set API expects next-to-use, not last-used */
+	mvmvif->seqno = le16_to_cpu(status->non_qos_seq_ctr) + 0x10;
+
+	return true;
+}
+
 /* releases the MVM mutex */
-static void iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
+static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
 					 struct ieee80211_vif *vif)
 {
 	u32 base = mvm->error_event_table;
@@ -1347,8 +1621,12 @@ static void iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
 		.id = WOWLAN_GET_STATUSES,
 		.flags = CMD_SYNC | CMD_WANT_SKB,
 	};
-	struct iwl_wowlan_status *status;
-	int ret, len;
+	struct iwl_wowlan_status_data status;
+	struct iwl_wowlan_status_v6 *status_v6;
+	int ret, len, status_size, i;
+	bool keep;
+	struct ieee80211_sta *ap_sta;
+	struct iwl_mvm_sta *mvm_ap_sta;
 
 	iwl_trans_read_mem_bytes(mvm->trans, base,
 				 &err_info, sizeof(err_info));
@@ -1381,32 +1659,83 @@ static void iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
 	if (!cmd.resp_pkt)
 		goto out_unlock;
 
+	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_D3_CONTINUITY_API)
+		status_size = sizeof(struct iwl_wowlan_status_v6);
+	else
+		status_size = sizeof(struct iwl_wowlan_status_v4);
+
 	len = le32_to_cpu(cmd.resp_pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
-	if (len - sizeof(struct iwl_cmd_header) < sizeof(*status)) {
+	if (len - sizeof(struct iwl_cmd_header) < status_size) {
 		IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
 		goto out_free_resp;
 	}
 
-	status = (void *)cmd.resp_pkt->data;
+	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_D3_CONTINUITY_API) {
+		status_v6 = (void *)cmd.resp_pkt->data;
+
+		status.pattern_number = le16_to_cpu(status_v6->pattern_number);
+		for (i = 0; i < 8; i++)
+			status.qos_seq_ctr[i] =
+				le16_to_cpu(status_v6->qos_seq_ctr[i]);
+		status.wakeup_reasons = le32_to_cpu(status_v6->wakeup_reasons);
+		status.wake_packet_length =
+			le32_to_cpu(status_v6->wake_packet_length);
+		status.wake_packet_bufsize =
+			le32_to_cpu(status_v6->wake_packet_bufsize);
+		status.wake_packet = status_v6->wake_packet;
+	} else {
+		struct iwl_wowlan_status_v4 *status_v4;
+		status_v6 = NULL;
+		status_v4 = (void *)cmd.resp_pkt->data;
+
+		status.pattern_number = le16_to_cpu(status_v4->pattern_number);
+		for (i = 0; i < 8; i++)
+			status.qos_seq_ctr[i] =
+				le16_to_cpu(status_v4->qos_seq_ctr[i]);
+		status.wakeup_reasons = le32_to_cpu(status_v4->wakeup_reasons);
+		status.wake_packet_length =
+			le32_to_cpu(status_v4->wake_packet_length);
+		status.wake_packet_bufsize =
+			le32_to_cpu(status_v4->wake_packet_bufsize);
+		status.wake_packet = status_v4->wake_packet;
+	}
 
 	if (len - sizeof(struct iwl_cmd_header) !=
-	    sizeof(*status) +
-	    ALIGN(le32_to_cpu(status->wake_packet_bufsize), 4)) {
+	    status_size + ALIGN(status.wake_packet_bufsize, 4)) {
 		IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
 		goto out_free_resp;
 	}
 
+	/* still at hard-coded place 0 for D3 image */
+	ap_sta = rcu_dereference_protected(
+			mvm->fw_id_to_mac_id[0],
+			lockdep_is_held(&mvm->mutex));
+	if (IS_ERR_OR_NULL(ap_sta))
+		goto out_free_resp;
+
+	mvm_ap_sta = (struct iwl_mvm_sta *)ap_sta->drv_priv;
+	for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
+		u16 seq = status.qos_seq_ctr[i];
+		/* firmware stores last-used value, we store next value */
+		seq += 0x10;
+		mvm_ap_sta->tid_data[i].seq_number = seq;
+	}
+
 	/* now we have all the data we need, unlock to avoid mac80211 issues */
 	mutex_unlock(&mvm->mutex);
 
-	iwl_mvm_report_wakeup_reasons(mvm, vif, status);
+	iwl_mvm_report_wakeup_reasons(mvm, vif, &status);
+
+	keep = iwl_mvm_setup_connection_keep(mvm, vif, status_v6);
+
 	iwl_free_resp(&cmd);
-	return;
+	return keep;
 
  out_free_resp:
 	iwl_free_resp(&cmd);
  out_unlock:
 	mutex_unlock(&mvm->mutex);
+	return false;
 }
 
 static void iwl_mvm_read_d3_sram(struct iwl_mvm *mvm)
@@ -1429,6 +1758,17 @@ static void iwl_mvm_read_d3_sram(struct iwl_mvm *mvm)
 #endif
 }
 
+static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac,
+				       struct ieee80211_vif *vif)
+{
+	/* skip the one we keep connection on */
+	if (data == vif)
+		return;
+
+	if (vif->type == NL80211_IFTYPE_STATION)
+		ieee80211_resume_disconnect(vif);
+}
+
 static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
 {
 	struct iwl_d3_iter_data resume_iter_data = {
@@ -1437,6 +1777,7 @@ static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
 	struct ieee80211_vif *vif = NULL;
 	int ret;
 	enum iwl_d3_status d3_status;
+	bool keep = false;
 
 	mutex_lock(&mvm->mutex);
 
@@ -1462,7 +1803,7 @@ static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
 	/* query SRAM first in case we want event logging */
 	iwl_mvm_read_d3_sram(mvm);
 
-	iwl_mvm_query_wakeup_reasons(mvm, vif);
+	keep = iwl_mvm_query_wakeup_reasons(mvm, vif);
 	/* has unlocked the mutex, so skip that */
 	goto out;
 
@@ -1470,8 +1811,10 @@ static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
 	mutex_unlock(&mvm->mutex);
 
  out:
-	if (!test && vif)
-		ieee80211_resume_disconnect(vif);
+	if (!test)
+		ieee80211_iterate_active_interfaces_rtnl(mvm->hw,
+			IEEE80211_IFACE_ITER_NORMAL,
+			iwl_mvm_d3_disconnect_iter, keep ? vif : NULL);
 
 	/* return 1 to reconfigure the device */
 	set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h
index 1f7d65aaa87a..4e7dd8cf87dc 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-d3.h
@@ -335,7 +335,7 @@ enum iwl_wowlan_wakeup_reason {
 	IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET		= BIT(12),
 }; /* WOWLAN_WAKE_UP_REASON_API_E_VER_2 */
 
-struct iwl_wowlan_status {
+struct iwl_wowlan_status_v4 {
 	__le64 replay_ctr;
 	__le16 pattern_number;
 	__le16 non_qos_seq_ctr;
@@ -350,6 +350,29 @@ struct iwl_wowlan_status {
 	u8 wake_packet[]; /* can be truncated from _length to _bufsize */
 } __packed; /* WOWLAN_STATUSES_API_S_VER_4 */
 
+struct iwl_wowlan_gtk_status {
+	u8 key_index;
+	u8 reserved[3];
+	u8 decrypt_key[16];
+	u8 tkip_mic_key[8];
+	struct iwl_wowlan_rsc_tsc_params_cmd rsc;
+} __packed;
+
+struct iwl_wowlan_status_v6 {
+	struct iwl_wowlan_gtk_status gtk;
+	__le64 replay_ctr;
+	__le16 pattern_number;
+	__le16 non_qos_seq_ctr;
+	__le16 qos_seq_ctr[8];
+	__le32 wakeup_reasons;
+	__le32 num_of_gtk_rekeys;
+	__le32 transmitted_ndps;
+	__le32 received_beacons;
+	__le32 wake_packet_length;
+	__le32 wake_packet_bufsize;
+	u8 wake_packet[]; /* can be truncated from _length to _bufsize */
+} __packed; /* WOWLAN_STATUSES_API_S_VER_6 */
+
 #define IWL_WOWLAN_TCP_MAX_PACKET_LEN		64
 #define IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN	128
 #define IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS	2048
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-mac.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-mac.h
index 98b1feb43d38..44a4959f69c0 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-mac.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-mac.h
@@ -372,4 +372,13 @@ static inline u32 iwl_mvm_reciprocal(u32 v)
 	return 0xFFFFFFFF / v;
 }
 
+#define IWL_NONQOS_SEQ_GET	0x1
+#define IWL_NONQOS_SEQ_SET	0x2
+struct iwl_nonqos_seq_query_cmd {
+	__le32 get_set_flag;
+	__le32 mac_id_n_color;
+	__le16 value;
+	__le16 reserved;
+} __packed; /* NON_QOS_TX_COUNTER_GET_SET_API_S_VER_1 */
+
 #endif /* __fw_api_mac_h__ */
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index 196c4ebb186f..4d1c82271d55 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -1042,6 +1042,9 @@ int iwl_mvm_mac_ctxt_add(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 	if (ret)
 		return ret;
 
+	/* will only do anything at resume from D3 time */
+	iwl_mvm_set_last_nonqos_seq(mvm, vif);
+
 	mvmvif->uploaded = true;
 	return 0;
 }
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 3e29d3c91617..16fb92e3877a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -313,6 +313,9 @@ struct iwl_mvm_vif {
 
 	int tx_key_idx;
 
+	bool seqno_valid;
+	u16 seqno;
+
 #if IS_ENABLED(CONFIG_IPV6)
 	/* IPv6 addresses for WoWLAN */
 	struct in6_addr target_ipv6_addrs[IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX];
@@ -796,6 +799,15 @@ void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
 void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
 				     struct ieee80211_vif *vif, int idx);
 extern const struct file_operations iwl_dbgfs_d3_test_ops;
+#ifdef CONFIG_PM_SLEEP
+void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm,
+				 struct ieee80211_vif *vif);
+#else
+static inline void
+iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
+{
+}
+#endif
 
 /* BT Coex */
 int iwl_send_bt_prio_tbl(struct iwl_mvm *mvm);
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c
index b320350e0226..fd826c9076f8 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.c
@@ -337,8 +337,12 @@ int iwl_mvm_add_sta(struct iwl_mvm *mvm,
 		if (vif->hw_queue[i] != IEEE80211_INVAL_HW_QUEUE)
 			mvm_sta->tfd_queue_msk |= BIT(vif->hw_queue[i]);
 
-	/* for HW restart - need to reset the seq_number etc... */
-	memset(mvm_sta->tid_data, 0, sizeof(mvm_sta->tid_data));
+	/* for HW restart - reset everything but the sequence number */
+	for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
+		u16 seq = mvm_sta->tid_data[i].seq_number;
+		memset(&mvm_sta->tid_data[i], 0, sizeof(mvm_sta->tid_data[i]));
+		mvm_sta->tid_data[i].seq_number = seq;
+	}
 
 	ret = iwl_mvm_sta_send_to_fw(mvm, sta, false);
 	if (ret)
-- 
cgit 


From 8e484f0baf4d6997c5663951a34877dff378620a Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Wed, 2 Oct 2013 15:02:25 +0300
Subject: iwlwifi: mvm: BT Coex - track bandwidth changes in HT

BT Coex needs to be updated when the bandwidth is modified
by the AP.
While at it, remove the vif parameter from
bt_coex_vif_change since it was unused.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/bt-coex.c  | 2 +-
 drivers/net/wireless/iwlwifi/mvm/mac80211.c | 7 ++++---
 drivers/net/wireless/iwlwifi/mvm/mvm.h      | 2 +-
 3 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index a007790223d9..f612c27fb4d8 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -921,7 +921,7 @@ u16 iwl_mvm_bt_coex_agg_time_limit(struct iwl_mvm *mvm,
 	return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
 }
 
-void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
+void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm)
 {
 	if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX))
 		return;
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index f9eb708d2c33..65de7960cba0 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -863,7 +863,7 @@ static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
 			if (ret)
 				IWL_ERR(mvm, "failed to update power mode\n");
 		}
-		iwl_mvm_bt_coex_vif_change(mvm, vif);
+		iwl_mvm_bt_coex_vif_change(mvm);
 	} else if (changes & BSS_CHANGED_BEACON_INFO) {
 		/*
 		 * We received a beacon _after_ association so
@@ -931,7 +931,7 @@ static int iwl_mvm_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 	if (vif->p2p && mvm->p2p_device_vif)
 		iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
 
-	iwl_mvm_bt_coex_vif_change(mvm, vif);
+	iwl_mvm_bt_coex_vif_change(mvm);
 
 	mutex_unlock(&mvm->mutex);
 	return 0;
@@ -958,7 +958,7 @@ static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 
 	mvmvif->ap_active = false;
 
-	iwl_mvm_bt_coex_vif_change(mvm, vif);
+	iwl_mvm_bt_coex_vif_change(mvm);
 
 	/* Need to update the P2P Device MAC */
 	if (vif->p2p && mvm->p2p_device_vif)
@@ -1540,6 +1540,7 @@ static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
 	iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &ctx->def,
 				 ctx->rx_chains_static,
 				 ctx->rx_chains_dynamic);
+	iwl_mvm_bt_coex_vif_change(mvm);
 	mutex_unlock(&mvm->mutex);
 }
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 16fb92e3877a..5b1c91c009b0 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -817,7 +817,7 @@ int iwl_mvm_rx_bt_coex_notif(struct iwl_mvm *mvm,
 			     struct iwl_device_cmd *cmd);
 void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 			   enum ieee80211_rssi_event rssi_event);
-void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm, struct ieee80211_vif *vif);
+void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm);
 u16 iwl_mvm_bt_coex_agg_time_limit(struct iwl_mvm *mvm,
 				   struct ieee80211_sta *sta);
 enum iwl_bt_kill_msk {
-- 
cgit 


From da8f8363913f49064969b2642082023955655256 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Sun, 6 Oct 2013 11:03:17 +0300
Subject: iwlwifi: mvm: BT Coex - tune SMPS parameters

Tests have shown that we should go SMSP_STATIC when BT
traffic is high, and stay in dynamic if BT traffic is low.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/bt-coex.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index f612c27fb4d8..9fda0c7aa9c7 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -622,11 +622,11 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 		/* if secondary is not NULL, it might be a GO */
 		data->secondary = chanctx_conf;
 
-	if (data->notif->bt_status)
-		smps_mode = IEEE80211_SMPS_DYNAMIC;
-
-	if (le32_to_cpu(data->notif->bt_activity_grading) >= BT_LOW_TRAFFIC)
+	if (le32_to_cpu(data->notif->bt_activity_grading) >= BT_HIGH_TRAFFIC)
 		smps_mode = IEEE80211_SMPS_STATIC;
+	else if (le32_to_cpu(data->notif->bt_activity_grading) >=
+		 BT_LOW_TRAFFIC)
+		smps_mode = IEEE80211_SMPS_DYNAMIC;
 
 	IWL_DEBUG_COEX(data->mvm,
 		       "mac %d: bt_status %d bt_activity_grading %d smps_req %d\n",
-- 
cgit 


From 5961257a9bc6371d0eb63cb639e38a1bcbe8a41a Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Sun, 6 Oct 2013 11:04:43 +0300
Subject: iwlwifi: mvm: BT Coex - start AMPDU even when BT is active

Tests have shown that we should start AMPDU even when BT
is active. So remove that constraint.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/rs.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index a8bd0ede8f51..dfd8025a7de7 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -309,17 +309,6 @@ static int rs_tl_turn_on_agg_for_tid(struct iwl_mvm *mvm,
 {
 	int ret = -EAGAIN;
 
-	/*
-	 * Don't create TX aggregation sessions when in high
-	 * BT traffic, as they would just be disrupted by BT.
-	 */
-	if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) >= 2) {
-		IWL_DEBUG_COEX(mvm, "BT traffic (%d), no aggregation allowed\n",
-			       BT_MBOX_MSG(&mvm->last_bt_notif,
-					   3, TRAFFIC_LOAD));
-		return ret;
-	}
-
 	IWL_DEBUG_HT(mvm, "Starting Tx agg: STA: %pM tid: %d\n",
 		     sta->addr, tid);
 	ret = ieee80211_start_tx_ba_session(sta, tid, 5000);
-- 
cgit 


From e9fff7767e36d1ad993f9b4c0a2b5fc173268585 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Sun, 6 Oct 2013 11:08:48 +0300
Subject: iwlwifi: mvm: BT Coex - remove duplicate code in rate control

The code limiting the AMPDU length due to BT traffic was
duplicated. Remove the redundant code.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/rs.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index dfd8025a7de7..0faeecc0ab1c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -2530,13 +2530,6 @@ static void rs_fill_link_cmd(struct iwl_mvm *mvm,
 	if (sta)
 		lq_cmd->agg_time_limit =
 			cpu_to_le16(iwl_mvm_bt_coex_agg_time_limit(mvm, sta));
-
-	/*
-	 * overwrite if needed, pass aggregation time limit
-	 * to uCode in uSec - This is racy - but heh, at least it helps...
-	 */
-	if (mvm && le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) >= 2)
-		lq_cmd->agg_time_limit = cpu_to_le16(1200);
 }
 
 static void *rs_alloc(struct ieee80211_hw *hw, struct dentry *debugfsdir)
-- 
cgit 


From ffa6c7077c3f7a433312b733688b9b14f38de17e Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Sun, 6 Oct 2013 11:41:20 +0300
Subject: iwlwifi: mvm: BT Coex - update integration with rate control

Remove code that is not needed and always allow MIMO when
in tight mode. In loose mode, we should avoid MIMO since BT
can use the other antenna to Rx while we Tx.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/bt-coex.c | 18 ++++++++++++
 drivers/net/wireless/iwlwifi/mvm/mvm.h     |  3 ++
 drivers/net/wireless/iwlwifi/mvm/rs.c      | 45 ++----------------------------
 3 files changed, 23 insertions(+), 43 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index 9fda0c7aa9c7..f3180cf63843 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -921,6 +921,24 @@ u16 iwl_mvm_bt_coex_agg_time_limit(struct iwl_mvm *mvm,
 	return LINK_QUAL_AGG_TIME_LIMIT_BT_ACT;
 }
 
+bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
+				     struct ieee80211_sta *sta)
+{
+	struct iwl_mvm_sta *mvmsta = (void *)sta->drv_priv;
+
+	if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) <
+	    BT_HIGH_TRAFFIC)
+		return true;
+
+	/*
+	 * In Tight, BT can't Rx while we Tx, so use both antennas since BT is
+	 * already killed.
+	 * In Loose, BT can Rx while we Tx, so forbid MIMO to let BT Rx while we
+	 * Tx.
+	 */
+	return iwl_get_coex_type(mvm, mvmsta->vif) == BT_COEX_TIGHT_LUT;
+}
+
 void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm)
 {
 	if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_NEWBT_COEX))
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 5b1c91c009b0..28d93051af2c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -820,6 +820,9 @@ void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 void iwl_mvm_bt_coex_vif_change(struct iwl_mvm *mvm);
 u16 iwl_mvm_bt_coex_agg_time_limit(struct iwl_mvm *mvm,
 				   struct ieee80211_sta *sta);
+bool iwl_mvm_bt_coex_is_mimo_allowed(struct iwl_mvm *mvm,
+				     struct ieee80211_sta *sta);
+
 enum iwl_bt_kill_msk {
 	BT_KILL_MSK_DEFAULT,
 	BT_KILL_MSK_SCO_HID_A2DP,
diff --git a/drivers/net/wireless/iwlwifi/mvm/rs.c b/drivers/net/wireless/iwlwifi/mvm/rs.c
index 0faeecc0ab1c..a0b4cc8d9c3b 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rs.c
@@ -1402,29 +1402,9 @@ static int rs_move_siso_to_other(struct iwl_mvm *mvm,
 	u8 update_search_tbl_counter = 0;
 	int ret;
 
-	switch (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading)) {
-	case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
-		/* nothing */
-		break;
-	case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
-		/* avoid switching to antenna B but allow MIMO */
-		if (tbl->action == IWL_SISO_SWITCH_ANTENNA &&
-		    tbl->ant_type == ANT_A)
-			tbl->action = IWL_SISO_SWITCH_MIMO2;
-		break;
-	case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
-	case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
-		/* A - avoid antenna B and MIMO. B - switch to A */
-		if (tbl->ant_type == ANT_A)
-			valid_tx_ant =
-				first_antenna(iwl_fw_valid_tx_ant(mvm->fw));
+	if (tbl->action == IWL_SISO_SWITCH_MIMO2 &&
+	    !iwl_mvm_bt_coex_is_mimo_allowed(mvm, sta))
 		tbl->action = IWL_SISO_SWITCH_ANTENNA;
-		break;
-	default:
-		IWL_ERR(mvm, "Invalid BT load %d",
-			le32_to_cpu(mvm->last_bt_notif.bt_activity_grading));
-		break;
-	}
 
 	start_action = tbl->action;
 	while (1) {
@@ -1519,27 +1499,6 @@ static int rs_move_mimo2_to_other(struct iwl_mvm *mvm,
 	u8 update_search_tbl_counter = 0;
 	int ret;
 
-	switch (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading)) {
-	case IWL_BT_COEX_TRAFFIC_LOAD_NONE:
-		/* nothing */
-		break;
-	case IWL_BT_COEX_TRAFFIC_LOAD_HIGH:
-	case IWL_BT_COEX_TRAFFIC_LOAD_CONTINUOUS:
-		/* avoid antenna B and MIMO */
-		if (tbl->action != IWL_MIMO2_SWITCH_SISO_A)
-			tbl->action = IWL_MIMO2_SWITCH_SISO_A;
-		break;
-	case IWL_BT_COEX_TRAFFIC_LOAD_LOW:
-		/* avoid antenna B unless MIMO */
-		if (tbl->action == IWL_MIMO2_SWITCH_SISO_B)
-			tbl->action = IWL_MIMO2_SWITCH_SISO_A;
-		break;
-	default:
-		IWL_ERR(mvm, "Invalid BT load %d",
-			le32_to_cpu(mvm->last_bt_notif.bt_activity_grading));
-		break;
-	}
-
 	start_action = tbl->action;
 	while (1) {
 		lq_sta->action_counter++;
-- 
cgit 


From 9439eac79f1edae172f7c54dce61c4fe2c8308ad Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 9 Oct 2013 09:59:25 +0200
Subject: iwlwifi: pcie: poke device when commands don't complete quickly

In certain corner cases in the firmware implementation, powersave
transitions can cause the firmware to miss the fact that commands
were added to the queue/FIFO and thus never processes them. Since
the commands really are in the queue, try to poke the firmware in
such cases (by grabbing NIC access, which wakes up the NIC) so it
notices the new command and processes it.

Reviewed-by: Alexander Bondar <alexander.bondar@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/pcie/tx.c | 31 ++++++++++++++++++++++++++-----
 1 file changed, 26 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index 1424335163b9..80f1956b3be3 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -1465,7 +1465,8 @@ void iwl_pcie_hcmd_complete(struct iwl_trans *trans,
 	spin_unlock_bh(&txq->lock);
 }
 
-#define HOST_COMPLETE_TIMEOUT (2 * HZ)
+#define HOST_COMPLETE_TIMEOUT	(2 * HZ)
+#define COMMAND_POKE_TIMEOUT	(HZ / 10)
 
 static int iwl_pcie_send_hcmd_async(struct iwl_trans *trans,
 				    struct iwl_host_cmd *cmd)
@@ -1493,6 +1494,7 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans,
 	struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
 	int cmd_idx;
 	int ret;
+	int timeout = HOST_COMPLETE_TIMEOUT;
 
 	IWL_DEBUG_INFO(trans, "Attempting to send sync command %s\n",
 		       get_cmd_string(trans_pcie, cmd->id));
@@ -1517,10 +1519,29 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans,
 		return ret;
 	}
 
-	ret = wait_event_timeout(trans_pcie->wait_command_queue,
-				 !test_bit(STATUS_HCMD_ACTIVE,
-					   &trans_pcie->status),
-				 HOST_COMPLETE_TIMEOUT);
+	while (timeout > 0) {
+		unsigned long flags;
+
+		timeout -= COMMAND_POKE_TIMEOUT;
+		ret = wait_event_timeout(trans_pcie->wait_command_queue,
+					 !test_bit(STATUS_HCMD_ACTIVE,
+						   &trans_pcie->status),
+					 COMMAND_POKE_TIMEOUT);
+		if (ret)
+			break;
+		/* poke the device - it may have lost the command */
+		if (iwl_trans_grab_nic_access(trans, true, &flags)) {
+			iwl_trans_release_nic_access(trans, &flags);
+			IWL_DEBUG_INFO(trans,
+				       "Tried to wake NIC for command %s\n",
+				       get_cmd_string(trans_pcie, cmd->id));
+		} else {
+			IWL_ERR(trans, "Failed to poke NIC for command %s\n",
+				get_cmd_string(trans_pcie, cmd->id));
+			break;
+		}
+	}
+
 	if (!ret) {
 		if (test_bit(STATUS_HCMD_ACTIVE, &trans_pcie->status)) {
 			struct iwl_txq *txq =
-- 
cgit 


From f39a52bfaf65de87a363d471ed02a3fef0752a1d Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <sgruszka@redhat.com>
Date: Wed, 9 Oct 2013 15:24:30 +0200
Subject: iwlwifi: don't WARN on bad firmware state

When we restart firmware and it is marked as not alive, we can still get
calls from mac80211. Don't WARN on in this situation as this triggers
automatic bug reports with no valuable information.

This continuation of:

commit 8ca95995e64f5d270889badb3e449dca91106a2b
Author: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date:   Sun Sep 15 11:37:17 2013 +0300

    iwlwifi: don't WARN on host commands sent when firmware is dead

which remove WARN_ONCE from one place, but those warnings are also
triggered from other functions.

Patch also adds unlikely() statement.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-trans.h | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index 80b47508647c..c6bac7c90b00 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -601,7 +601,7 @@ static inline int iwl_trans_send_cmd(struct iwl_trans *trans,
 {
 	int ret;
 
-	if (trans->state != IWL_TRANS_FW_ALIVE) {
+	if (unlikely(trans->state != IWL_TRANS_FW_ALIVE)) {
 		IWL_ERR(trans, "%s bad state = %d", __func__, trans->state);
 		return -EIO;
 	}
@@ -640,8 +640,8 @@ static inline void iwl_trans_free_tx_cmd(struct iwl_trans *trans,
 static inline int iwl_trans_tx(struct iwl_trans *trans, struct sk_buff *skb,
 			       struct iwl_device_cmd *dev_cmd, int queue)
 {
-	WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE,
-		  "%s bad state = %d", __func__, trans->state);
+	if (unlikely(trans->state != IWL_TRANS_FW_ALIVE))
+		IWL_ERR(trans, "%s bad state = %d", __func__, trans->state);
 
 	return trans->ops->tx(trans, skb, dev_cmd, queue);
 }
@@ -649,16 +649,16 @@ static inline int iwl_trans_tx(struct iwl_trans *trans, struct sk_buff *skb,
 static inline void iwl_trans_reclaim(struct iwl_trans *trans, int queue,
 				     int ssn, struct sk_buff_head *skbs)
 {
-	WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE,
-		  "%s bad state = %d", __func__, trans->state);
+	if (unlikely(trans->state != IWL_TRANS_FW_ALIVE))
+		IWL_ERR(trans, "%s bad state = %d", __func__, trans->state);
 
 	trans->ops->reclaim(trans, queue, ssn, skbs);
 }
 
 static inline void iwl_trans_txq_disable(struct iwl_trans *trans, int queue)
 {
-	WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE,
-		  "%s bad state = %d", __func__, trans->state);
+	if (unlikely(trans->state != IWL_TRANS_FW_ALIVE))
+		IWL_ERR(trans, "%s bad state = %d", __func__, trans->state);
 
 	trans->ops->txq_disable(trans, queue);
 }
@@ -669,8 +669,8 @@ static inline void iwl_trans_txq_enable(struct iwl_trans *trans, int queue,
 {
 	might_sleep();
 
-	WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE,
-		  "%s bad state = %d", __func__, trans->state);
+	if (unlikely((trans->state != IWL_TRANS_FW_ALIVE)))
+		IWL_ERR(trans, "%s bad state = %d", __func__, trans->state);
 
 	trans->ops->txq_enable(trans, queue, fifo, sta_id, tid,
 				 frame_limit, ssn);
@@ -685,8 +685,8 @@ static inline void iwl_trans_ac_txq_enable(struct iwl_trans *trans, int queue,
 
 static inline int iwl_trans_wait_tx_queue_empty(struct iwl_trans *trans)
 {
-	WARN_ONCE(trans->state != IWL_TRANS_FW_ALIVE,
-		  "%s bad state = %d", __func__, trans->state);
+	if (unlikely(trans->state != IWL_TRANS_FW_ALIVE))
+		IWL_ERR(trans, "%s bad state = %d", __func__, trans->state);
 
 	return trans->ops->wait_tx_queue_empty(trans);
 }
-- 
cgit 


From c4aee085c0c0079cdb45f68bf63cb930a1932783 Mon Sep 17 00:00:00 2001
From: Eran Harary <eran.harary@intel.com>
Date: Tue, 8 Oct 2013 08:03:07 +0200
Subject: iwlwifi: Support 7265 devices

7265 is a very similar device to 7260, so just add
the definitions based on 7260 for it.

Signed-off-by: Eran Harary <eran.harary@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-7000.c   | 14 ++++++++++++++
 drivers/net/wireless/iwlwifi/iwl-config.h |  1 +
 drivers/net/wireless/iwlwifi/pcie/drv.c   |  5 ++++-
 3 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-7000.c b/drivers/net/wireless/iwlwifi/iwl-7000.c
index 76e14c046d94..85879dbaa402 100644
--- a/drivers/net/wireless/iwlwifi/iwl-7000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-7000.c
@@ -83,6 +83,8 @@
 #define IWL7260_TX_POWER_VERSION	0xffff /* meaningless */
 #define IWL3160_NVM_VERSION		0x709
 #define IWL3160_TX_POWER_VERSION	0xffff /* meaningless */
+#define IWL7265_NVM_VERSION		0x0a1d
+#define IWL7265_TX_POWER_VERSION	0xffff /* meaningless */
 
 #define IWL7260_FW_PRE "iwlwifi-7260-"
 #define IWL7260_MODULE_FIRMWARE(api) IWL7260_FW_PRE __stringify(api) ".ucode"
@@ -90,6 +92,9 @@
 #define IWL3160_FW_PRE "iwlwifi-3160-"
 #define IWL3160_MODULE_FIRMWARE(api) IWL3160_FW_PRE __stringify(api) ".ucode"
 
+#define IWL7265_FW_PRE "iwlwifi-7265-"
+#define IWL7265_MODULE_FIRMWARE(api) IWL7265_FW_PRE __stringify(api) ".ucode"
+
 static const struct iwl_base_params iwl7000_base_params = {
 	.eeprom_size = OTP_LOW_IMAGE_SIZE,
 	.num_of_queues = IWLAGN_NUM_QUEUES,
@@ -182,5 +187,14 @@ const struct iwl_cfg iwl3160_n_cfg = {
 	.nvm_calib_ver = IWL3160_TX_POWER_VERSION,
 };
 
+const struct iwl_cfg iwl7265_2ac_cfg = {
+	.name = "Intel(R) Dual Band Wireless AC 7265",
+	.fw_name_pre = IWL7265_FW_PRE,
+	IWL_DEVICE_7000,
+	.ht_params = &iwl7000_ht_params,
+	.nvm_ver = IWL7265_NVM_VERSION,
+	.nvm_calib_ver = IWL7265_TX_POWER_VERSION,
+};
+
 MODULE_FIRMWARE(IWL7260_MODULE_FIRMWARE(IWL7260_UCODE_API_OK));
 MODULE_FIRMWARE(IWL3160_MODULE_FIRMWARE(IWL3160_UCODE_API_OK));
diff --git a/drivers/net/wireless/iwlwifi/iwl-config.h b/drivers/net/wireless/iwlwifi/iwl-config.h
index e4d370bff306..261e4a12fd8e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-config.h
+++ b/drivers/net/wireless/iwlwifi/iwl-config.h
@@ -292,6 +292,7 @@ extern const struct iwl_cfg iwl7260_n_cfg;
 extern const struct iwl_cfg iwl3160_2ac_cfg;
 extern const struct iwl_cfg iwl3160_2n_cfg;
 extern const struct iwl_cfg iwl3160_n_cfg;
+extern const struct iwl_cfg iwl7265_2ac_cfg;
 #endif /* CONFIG_IWLMVM */
 
 #endif /* __IWL_CONFIG_H__ */
diff --git a/drivers/net/wireless/iwlwifi/pcie/drv.c b/drivers/net/wireless/iwlwifi/pcie/drv.c
index 5c5c423aa286..ddf15e1cffa2 100644
--- a/drivers/net/wireless/iwlwifi/pcie/drv.c
+++ b/drivers/net/wireless/iwlwifi/pcie/drv.c
@@ -258,7 +258,7 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
 #endif /* CONFIG_IWLDVM */
 
 #if IS_ENABLED(CONFIG_IWLMVM)
-/* 7000 Series */
+/* 7260 Series */
 	{IWL_PCI_DEVICE(0x08B1, 0x4070, iwl7260_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x08B1, 0x4170, iwl7260_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x08B1, 0x4060, iwl7260_2n_cfg)},
@@ -308,6 +308,9 @@ static DEFINE_PCI_DEVICE_TABLE(iwl_hw_card_ids) = {
 	{IWL_PCI_DEVICE(0x08B3, 0x8062, iwl3160_n_cfg)},
 	{IWL_PCI_DEVICE(0x08B4, 0x8270, iwl3160_2ac_cfg)},
 	{IWL_PCI_DEVICE(0x08B3, 0x8470, iwl3160_2ac_cfg)},
+
+/* 7265 Series */
+	{IWL_PCI_DEVICE(0x095A, 0x5010, iwl7265_2ac_cfg)},
 #endif /* CONFIG_IWLMVM */
 
 	{0}
-- 
cgit 


From 5023d96616a1faf46656f8bb5545387d7cca9026 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 31 Jul 2013 14:07:43 +0200
Subject: iwlwifi: mvm: add IBSS support

At the firmware level, IBSS support has similar programming
requirements as AP/GO support, so use the same functions with
just small differences.

With IBSS only a single virtual interface can be used, so no
changes in the advertised interface combinations are needed.

For now, don't use hardware crypto for the GTKs in IBSS mode,
the firmware should support it though.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/bt-coex.c    |  2 +-
 drivers/net/wireless/iwlwifi/mvm/fw-api-mac.h |  2 +
 drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c   | 54 ++++++++++++++++++----
 drivers/net/wireless/iwlwifi/mvm/mac80211.c   | 64 ++++++++++++++++++---------
 drivers/net/wireless/iwlwifi/mvm/mvm.h        |  6 +--
 drivers/net/wireless/iwlwifi/mvm/quota.c      |  9 ++--
 drivers/net/wireless/iwlwifi/mvm/sta.c        |  6 ++-
 7 files changed, 102 insertions(+), 41 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index f3180cf63843..cfff8edefcff 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -594,7 +594,7 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 
 	/* SoftAP / GO will always be primary */
 	if (vif->type == NL80211_IFTYPE_AP) {
-		if (!mvmvif->ap_active)
+		if (!mvmvif->ap_ibss_active)
 			return;
 
 		/* the Ack / Cts kill mask must be default if AP / GO */
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-mac.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-mac.h
index 44a4959f69c0..39c3148bdfa8 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-mac.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-mac.h
@@ -170,12 +170,14 @@ struct iwl_mac_data_ap {
  * @beacon_tsf: beacon transmit time in TSF
  * @bi: beacon interval in TU
  * @bi_reciprocal: 2^32 / bi
+ * @beacon_template: beacon template ID
  */
 struct iwl_mac_data_ibss {
 	__le32 beacon_time;
 	__le64 beacon_tsf;
 	__le32 bi;
 	__le32 bi_reciprocal;
+	__le32 beacon_template;
 } __packed; /* IBSS_MAC_DATA_API_S_VER_1 */
 
 /**
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index 4d1c82271d55..ab5a7ac90dcd 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -242,9 +242,17 @@ static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm *mvm,
 	 * that we should share it with another interface.
 	 */
 
-	/* Currently, MAC ID 0 should be used only for the managed vif */
-	if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
+	/* Currently, MAC ID 0 should be used only for the managed/IBSS vif */
+	switch (vif->type) {
+	case NL80211_IFTYPE_ADHOC:
+		break;
+	case NL80211_IFTYPE_STATION:
+		if (!vif->p2p)
+			break;
+		/* fall through */
+	default:
 		__clear_bit(0, data.available_mac_ids);
+	}
 
 	ieee80211_iterate_active_interfaces_atomic(
 		mvm->hw, IEEE80211_IFACE_ITER_RESUME_ALL,
@@ -716,6 +724,31 @@ static int iwl_mvm_mac_ctxt_cmd_listener(struct iwl_mvm *mvm,
 	return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd);
 }
 
+static int iwl_mvm_mac_ctxt_cmd_ibss(struct iwl_mvm *mvm,
+				     struct ieee80211_vif *vif,
+				     u32 action)
+{
+	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+	struct iwl_mac_ctx_cmd cmd = {};
+
+	WARN_ON(vif->type != NL80211_IFTYPE_ADHOC);
+
+	iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, action);
+
+	cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_BEACON |
+				       MAC_FILTER_IN_PROBE_REQUEST);
+
+	/* cmd.ibss.beacon_time/cmd.ibss.beacon_tsf are curently ignored */
+	cmd.ibss.bi = cpu_to_le32(vif->bss_conf.beacon_int);
+	cmd.ibss.bi_reciprocal =
+		cpu_to_le32(iwl_mvm_reciprocal(vif->bss_conf.beacon_int));
+
+	/* TODO: Assumes that the beacon id == mac context id */
+	cmd.ibss.beacon_template = cpu_to_le32(mvmvif->id);
+
+	return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd);
+}
+
 struct iwl_mvm_go_iterator_data {
 	bool go_active;
 };
@@ -725,7 +758,8 @@ static void iwl_mvm_go_iterator(void *_data, u8 *mac, struct ieee80211_vif *vif)
 	struct iwl_mvm_go_iterator_data *data = _data;
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
 
-	if (vif->type == NL80211_IFTYPE_AP && vif->p2p && mvmvif->ap_active)
+	if (vif->type == NL80211_IFTYPE_AP && vif->p2p &&
+	    mvmvif->ap_ibss_active)
 		data->go_active = true;
 }
 
@@ -837,9 +871,10 @@ static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm,
 		cpu_to_le32(iwl_mvm_mac80211_idx_to_hwrate(rate));
 
 	/* Set up TX beacon command fields */
-	iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd,
-				 beacon->data,
-				 beacon_skb_len);
+	if (vif->type == NL80211_IFTYPE_AP)
+		iwl_mvm_mac_ctxt_set_tim(mvm, &beacon_cmd,
+					 beacon->data,
+					 beacon_skb_len);
 
 	/* Submit command */
 	cmd.len[0] = sizeof(beacon_cmd);
@@ -852,14 +887,15 @@ static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm,
 	return iwl_mvm_send_cmd(mvm, &cmd);
 }
 
-/* The beacon template for the AP/GO context has changed and needs update */
+/* The beacon template for the AP/GO/IBSS has changed and needs update */
 int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm,
 				    struct ieee80211_vif *vif)
 {
 	struct sk_buff *beacon;
 	int ret;
 
-	WARN_ON(vif->type != NL80211_IFTYPE_AP);
+	WARN_ON(vif->type != NL80211_IFTYPE_AP &&
+		vif->type != NL80211_IFTYPE_ADHOC);
 
 	beacon = ieee80211_beacon_get(mvm->hw, vif);
 	if (!beacon)
@@ -1022,6 +1058,8 @@ static int iwl_mvm_mac_ctx_send(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 		return iwl_mvm_mac_ctxt_cmd_listener(mvm, vif, action);
 	case NL80211_IFTYPE_P2P_DEVICE:
 		return iwl_mvm_mac_ctxt_cmd_p2p_device(mvm, vif, action);
+	case NL80211_IFTYPE_ADHOC:
+		return iwl_mvm_mac_ctxt_cmd_ibss(mvm, vif, action);
 	default:
 		break;
 	}
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index 65de7960cba0..f40685c3764e 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -190,6 +190,10 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 		BIT(NL80211_IFTYPE_P2P_GO) |
 		BIT(NL80211_IFTYPE_P2P_DEVICE);
 
+	/* IBSS has bugs in older versions */
+	if (IWL_UCODE_API(mvm->fw->ucode_ver) >= 8)
+		hw->wiphy->interface_modes |= BIT(NL80211_IFTYPE_ADHOC);
+
 	hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY |
 			    WIPHY_FLAG_DISABLE_BEACON_HINTS |
 			    WIPHY_FLAG_IBSS_RSN;
@@ -565,7 +569,8 @@ static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
 	 * In short: there's not much we can do at this point, other than
 	 * allocating resources :)
 	 */
-	if (vif->type == NL80211_IFTYPE_AP) {
+	if (vif->type == NL80211_IFTYPE_AP ||
+	    vif->type == NL80211_IFTYPE_ADHOC) {
 		u32 qmask = iwl_mvm_mac_get_queues_mask(mvm, vif);
 		ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->bcast_sta,
 					       qmask);
@@ -715,7 +720,8 @@ static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
 	 * For AP/GO interface, the tear down of the resources allocated to the
 	 * interface is be handled as part of the stop_ap flow.
 	 */
-	if (vif->type == NL80211_IFTYPE_AP) {
+	if (vif->type == NL80211_IFTYPE_AP ||
+	    vif->type == NL80211_IFTYPE_ADHOC) {
 #ifdef CONFIG_NL80211_TESTMODE
 		if (vif == mvm->noa_vif) {
 			mvm->noa_vif = NULL;
@@ -892,7 +898,8 @@ static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
 	}
 }
 
-static int iwl_mvm_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
+				 struct ieee80211_vif *vif)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
@@ -915,7 +922,7 @@ static int iwl_mvm_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 	if (ret)
 		goto out_remove;
 
-	mvmvif->ap_active = true;
+	mvmvif->ap_ibss_active = true;
 
 	/* Send the bcast station. At this stage the TBTT and DTIM time events
 	 * are added and applied to the scheduler */
@@ -927,7 +934,7 @@ static int iwl_mvm_start_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 	if (ret)
 		goto out_rm_bcast;
 
-	/* Need to update the P2P Device MAC */
+	/* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
 	if (vif->p2p && mvm->p2p_device_vif)
 		iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
 
@@ -947,7 +954,8 @@ out_unlock:
 	return ret;
 }
 
-static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
+static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
+				 struct ieee80211_vif *vif)
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
@@ -956,11 +964,11 @@ static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 
 	mutex_lock(&mvm->mutex);
 
-	mvmvif->ap_active = false;
+	mvmvif->ap_ibss_active = false;
 
 	iwl_mvm_bt_coex_vif_change(mvm);
 
-	/* Need to update the P2P Device MAC */
+	/* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
 	if (vif->p2p && mvm->p2p_device_vif)
 		iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif);
 
@@ -972,10 +980,11 @@ static void iwl_mvm_stop_ap(struct ieee80211_hw *hw, struct ieee80211_vif *vif)
 	mutex_unlock(&mvm->mutex);
 }
 
-static void iwl_mvm_bss_info_changed_ap(struct iwl_mvm *mvm,
-					struct ieee80211_vif *vif,
-					struct ieee80211_bss_conf *bss_conf,
-					u32 changes)
+static void
+iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
+				 struct ieee80211_vif *vif,
+				 struct ieee80211_bss_conf *bss_conf,
+				 u32 changes)
 {
 	/* Need to send a new beacon template to the FW */
 	if (changes & BSS_CHANGED_BEACON) {
@@ -998,7 +1007,8 @@ static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
 		iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
 		break;
 	case NL80211_IFTYPE_AP:
-		iwl_mvm_bss_info_changed_ap(mvm, vif, bss_conf, changes);
+	case NL80211_IFTYPE_ADHOC:
+		iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
 		break;
 	default:
 		/* shouldn't happen */
@@ -1302,8 +1312,13 @@ static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
 
 	switch (cmd) {
 	case SET_KEY:
-		if (vif->type == NL80211_IFTYPE_AP && !sta) {
-			/* GTK on AP interface is a TX-only key, return 0 */
+		if ((vif->type == NL80211_IFTYPE_ADHOC ||
+		     vif->type == NL80211_IFTYPE_AP) && !sta) {
+			/*
+			 * GTK on AP interface is a TX-only key, return 0;
+			 * on IBSS they're per-station and because we're lazy
+			 * we don't support them for RX, so do the same.
+			 */
 			ret = 0;
 			key->hw_key_idx = STA_KEY_IDX_INVALID;
 			break;
@@ -1347,6 +1362,9 @@ static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
 {
 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
 
+	if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
+		return;
+
 	iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
 }
 
@@ -1560,14 +1578,14 @@ static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
 
 	switch (vif->type) {
 	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_ADHOC:
 		/*
 		 * The AP binding flow is handled as part of the start_ap flow
-		 * (in bss_info_changed).
+		 * (in bss_info_changed), similarly for IBSS.
 		 */
 		ret = 0;
 		goto out_unlock;
 	case NL80211_IFTYPE_STATION:
-	case NL80211_IFTYPE_ADHOC:
 	case NL80211_IFTYPE_MONITOR:
 		break;
 	default:
@@ -1613,10 +1631,10 @@ static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
 
 	iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
 
-	if (vif->type == NL80211_IFTYPE_AP)
-		goto out_unlock;
-
 	switch (vif->type) {
+	case NL80211_IFTYPE_AP:
+	case NL80211_IFTYPE_ADHOC:
+		goto out_unlock;
 	case NL80211_IFTYPE_MONITOR:
 		mvmvif->monitor_active = false;
 		iwl_mvm_update_quotas(mvm, NULL);
@@ -1744,8 +1762,10 @@ struct ieee80211_ops iwl_mvm_hw_ops = {
 	.assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
 	.unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
 
-	.start_ap = iwl_mvm_start_ap,
-	.stop_ap = iwl_mvm_stop_ap,
+	.start_ap = iwl_mvm_start_ap_ibss,
+	.stop_ap = iwl_mvm_stop_ap_ibss,
+	.join_ibss = iwl_mvm_start_ap_ibss,
+	.leave_ibss = iwl_mvm_stop_ap_ibss,
 
 	.set_tim = iwl_mvm_set_tim,
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 28d93051af2c..6235cb729f5c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -262,8 +262,8 @@ struct iwl_mvm_vif_bf_data {
  * @color: to solve races upon MAC addition and removal
  * @ap_sta_id: the sta_id of the AP - valid only if VIF type is STA
  * @uploaded: indicates the MAC context has been added to the device
- * @ap_active: indicates that ap context is configured, and that the interface
- *  should get quota etc.
+ * @ap_ibss_active: indicates that AP/IBSS is configured and that the interface
+ *	should get quota etc.
  * @monitor_active: indicates that monitor context is configured, and that the
  * interface should get quota etc.
  * @queue_params: QoS params for this MAC
@@ -279,7 +279,7 @@ struct iwl_mvm_vif {
 	u8 ap_sta_id;
 
 	bool uploaded;
-	bool ap_active;
+	bool ap_ibss_active;
 	bool monitor_active;
 	struct iwl_mvm_vif_bf_data bf_data;
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/quota.c b/drivers/net/wireless/iwlwifi/mvm/quota.c
index 6c724a076427..3fc986eb0d6c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/quota.c
+++ b/drivers/net/wireless/iwlwifi/mvm/quota.c
@@ -110,7 +110,8 @@ static void iwl_mvm_quota_iterator(void *_data, u8 *mac,
 			data->n_interfaces[id]++;
 		break;
 	case NL80211_IFTYPE_AP:
-		if (mvmvif->ap_active)
+	case NL80211_IFTYPE_ADHOC:
+		if (mvmvif->ap_ibss_active)
 			data->n_interfaces[id]++;
 		break;
 	case NL80211_IFTYPE_MONITOR:
@@ -119,10 +120,6 @@ static void iwl_mvm_quota_iterator(void *_data, u8 *mac,
 		break;
 	case NL80211_IFTYPE_P2P_DEVICE:
 		break;
-	case NL80211_IFTYPE_ADHOC:
-		if (vif->bss_conf.ibss_joined)
-			data->n_interfaces[id]++;
-		break;
 	default:
 		WARN_ON_ONCE(1);
 		break;
@@ -140,7 +137,7 @@ static void iwl_mvm_adjust_quota_for_noa(struct iwl_mvm *mvm,
 		return;
 
 	mvmvif = iwl_mvm_vif_from_mac80211(mvm->noa_vif);
-	if (!mvmvif->ap_active)
+	if (!mvmvif->ap_ibss_active)
 		return;
 
 	phy_id = mvmvif->phy_ctxt->id;
diff --git a/drivers/net/wireless/iwlwifi/mvm/sta.c b/drivers/net/wireless/iwlwifi/mvm/sta.c
index fd826c9076f8..329952363a54 100644
--- a/drivers/net/wireless/iwlwifi/mvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/mvm/sta.c
@@ -644,10 +644,14 @@ int iwl_mvm_send_bcast_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 			   struct iwl_mvm_int_sta *bsta)
 {
 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
-	static const u8 baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
+	static const u8 _baddr[] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
+	static const u8 *baddr = _baddr;
 
 	lockdep_assert_held(&mvm->mutex);
 
+	if (vif->type == NL80211_IFTYPE_ADHOC)
+		baddr = vif->bss_conf.bssid;
+
 	if (WARN_ON_ONCE(bsta->sta_id == IWL_MVM_STATION_COUNT))
 		return -ENOSPC;
 
-- 
cgit 


From 70b5341138dcb931df318afb51e8fb5310f9f095 Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Thu, 10 Oct 2013 11:01:07 +0300
Subject: gpiolib / ACPI: move acpi_gpiochip_free_interrupts next to the
 request function

It makes more sense to have these functions close to each other. No
functional changes.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpiolib-acpi.c | 76 ++++++++++++++++++++++-----------------------
 1 file changed, 38 insertions(+), 38 deletions(-)

diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index f2beb728ed8f..1745ce5983d6 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -194,6 +194,44 @@ void acpi_gpiochip_request_interrupts(struct gpio_chip *chip)
 }
 EXPORT_SYMBOL(acpi_gpiochip_request_interrupts);
 
+/**
+ * acpi_gpiochip_free_interrupts() - Free GPIO _EVT ACPI event interrupts.
+ * @chip:      gpio chip
+ *
+ * Free interrupts associated with the _EVT method for the given GPIO chip.
+ *
+ * The remaining ACPI event interrupts associated with the chip are freed
+ * automatically.
+ */
+void acpi_gpiochip_free_interrupts(struct gpio_chip *chip)
+{
+	acpi_handle handle;
+	acpi_status status;
+	struct list_head *evt_pins;
+	struct acpi_gpio_evt_pin *evt_pin, *ep;
+
+	if (!chip->dev || !chip->to_irq)
+		return;
+
+	handle = ACPI_HANDLE(chip->dev);
+	if (!handle)
+		return;
+
+	status = acpi_get_data(handle, acpi_gpio_evt_dh, (void **)&evt_pins);
+	if (ACPI_FAILURE(status))
+		return;
+
+	list_for_each_entry_safe_reverse(evt_pin, ep, evt_pins, node) {
+		devm_free_irq(chip->dev, evt_pin->irq, evt_pin);
+		list_del(&evt_pin->node);
+		kfree(evt_pin);
+	}
+
+	acpi_detach_data(handle, acpi_gpio_evt_dh);
+	kfree(evt_pins);
+}
+EXPORT_SYMBOL(acpi_gpiochip_free_interrupts);
+
 struct acpi_gpio_lookup {
 	struct acpi_gpio_info info;
 	int index;
@@ -271,41 +309,3 @@ int acpi_get_gpio_by_index(struct device *dev, int index,
 	return lookup.gpio;
 }
 EXPORT_SYMBOL_GPL(acpi_get_gpio_by_index);
-
-/**
- * acpi_gpiochip_free_interrupts() - Free GPIO _EVT ACPI event interrupts.
- * @chip:      gpio chip
- *
- * Free interrupts associated with the _EVT method for the given GPIO chip.
- *
- * The remaining ACPI event interrupts associated with the chip are freed
- * automatically.
- */
-void acpi_gpiochip_free_interrupts(struct gpio_chip *chip)
-{
-	acpi_handle handle;
-	acpi_status status;
-	struct list_head *evt_pins;
-	struct acpi_gpio_evt_pin *evt_pin, *ep;
-
-	if (!chip->dev || !chip->to_irq)
-		return;
-
-	handle = ACPI_HANDLE(chip->dev);
-	if (!handle)
-		return;
-
-	status = acpi_get_data(handle, acpi_gpio_evt_dh, (void **)&evt_pins);
-	if (ACPI_FAILURE(status))
-		return;
-
-	list_for_each_entry_safe_reverse(evt_pin, ep, evt_pins, node) {
-		devm_free_irq(chip->dev, evt_pin->irq, evt_pin);
-		list_del(&evt_pin->node);
-		kfree(evt_pin);
-	}
-
-	acpi_detach_data(handle, acpi_gpio_evt_dh);
-	kfree(evt_pins);
-}
-EXPORT_SYMBOL(acpi_gpiochip_free_interrupts);
-- 
cgit 


From 9a633a2bced158c57b73cf4d8e87be60473de1d2 Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Fri, 11 Oct 2013 05:04:12 -0500
Subject: regulator: ti-abb: Fix operator precedence typo

commit 40b1936e (regulator: Introduce TI Adaptive Body Bias(ABB) on-chip
LDO driver) missed a pair of brackets which cause the wrong vset data to be
picked up from efuse, resulting in bad VBB voltage values.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
---
 drivers/regulator/ti-abb-regulator.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/ti-abb-regulator.c b/drivers/regulator/ti-abb-regulator.c
index 20c271d49dcb..b993ec570f66 100644
--- a/drivers/regulator/ti-abb-regulator.c
+++ b/drivers/regulator/ti-abb-regulator.c
@@ -615,7 +615,7 @@ static int ti_abb_init_table(struct device *dev, struct ti_abb *abb,
 					pname, *volt_table, vset_mask);
 			continue;
 		}
-		info->vset = efuse_val & vset_mask >> __ffs(vset_mask);
+		info->vset = (efuse_val & vset_mask) >> __ffs(vset_mask);
 		dev_dbg(dev, "[%d]v=%d vset=%x\n", i, *volt_table, info->vset);
 check_abb:
 		switch (info->opp_sel) {
-- 
cgit 


From c6452e39e8286b88872aee20a4d083cfa65516bc Mon Sep 17 00:00:00 2001
From: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Date: Fri, 11 Oct 2013 12:28:13 +0200
Subject: ASoC: mc13783: add mixer controls

Add more controls to the alsa mixer infrastructure.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/mc13783.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/sound/soc/codecs/mc13783.c b/sound/soc/codecs/mc13783.c
index eedbf05b8e96..2b62737bf3d4 100644
--- a/sound/soc/codecs/mc13783.c
+++ b/sound/soc/codecs/mc13783.c
@@ -541,8 +541,26 @@ static const struct soc_enum mc13783_enum_3d_mixer =
 static struct snd_kcontrol_new mc13783_control_list[] = {
 	SOC_SINGLE("Loudspeaker enable", MC13783_AUDIO_RX0, 5, 1, 0),
 	SOC_SINGLE("PCM Playback Volume", MC13783_AUDIO_RX1, 6, 15, 0),
+	SOC_SINGLE("PCM Playback Switch", MC13783_AUDIO_RX1, 5, 1, 0),
 	SOC_DOUBLE("PCM Capture Volume", MC13783_AUDIO_TX, 19, 14, 31, 0),
 	SOC_ENUM("3D Control", mc13783_enum_3d_mixer),
+
+	SOC_SINGLE("CDCOUT Switch", MC13783_AUDIO_RX0, 18, 1, 0),
+	SOC_SINGLE("Earpiece Amp Switch", MC13783_AUDIO_RX0, 3, 1, 0),
+	SOC_DOUBLE("Headset Amp Switch", MC13783_AUDIO_RX0, 10, 9, 1, 0),
+	SOC_DOUBLE("Line out Amp Switch", MC13783_AUDIO_RX0, 16, 15, 1, 0),
+
+	SOC_SINGLE("PCM Capture Mixin Switch", MC13783_AUDIO_RX0, 22, 1, 0),
+	SOC_SINGLE("Line in Capture Mixin Switch", MC13783_AUDIO_RX0, 23, 1, 0),
+
+	SOC_SINGLE("CODEC Capture Volume", MC13783_AUDIO_RX1, 1, 15, 0),
+	SOC_SINGLE("CODEC Capture Mixin Switch", MC13783_AUDIO_RX0, 21, 1, 0),
+
+	SOC_SINGLE("Line in Capture Volume", MC13783_AUDIO_RX1, 12, 15, 0),
+	SOC_SINGLE("Line in Capture Switch", MC13783_AUDIO_RX1, 10, 1, 0),
+
+	SOC_SINGLE("MC1 Capture Bias Switch", MC13783_AUDIO_TX, 0, 1, 0),
+	SOC_SINGLE("MC2 Capture Bias Switch", MC13783_AUDIO_TX, 1, 1, 0),
 };
 
 static int mc13783_probe(struct snd_soc_codec *codec)
-- 
cgit 


From bb7838d4f13c50df8ef7324f5fd4aeb729269e22 Mon Sep 17 00:00:00 2001
From: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Date: Fri, 11 Oct 2013 12:28:14 +0200
Subject: ASoC: mc13783: add more DAPM routes

Add more infrastructure (i.e. routes, muxes, switches) to the mc13783 DAPM.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/mc13783.c | 58 +++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 52 insertions(+), 6 deletions(-)

diff --git a/sound/soc/codecs/mc13783.c b/sound/soc/codecs/mc13783.c
index 2b62737bf3d4..f5472adee674 100644
--- a/sound/soc/codecs/mc13783.c
+++ b/sound/soc/codecs/mc13783.c
@@ -427,6 +427,29 @@ static const struct snd_kcontrol_new right_input_mux =
 static const struct snd_kcontrol_new samp_ctl =
 	SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_RX0, 3, 1, 0);
 
+static const char * const speaker_amp_source_text[] = {
+	"CODEC", "Right"
+};
+static const SOC_ENUM_SINGLE_DECL(speaker_amp_source, MC13783_AUDIO_RX0, 4,
+				  speaker_amp_source_text);
+static const struct snd_kcontrol_new speaker_amp_source_mux =
+	SOC_DAPM_ENUM("Speaker Amp Source MUX", speaker_amp_source);
+
+static const char * const headset_amp_source_text[] = {
+	"CODEC", "Mixer"
+};
+
+static const SOC_ENUM_SINGLE_DECL(headset_amp_source, MC13783_AUDIO_RX0, 11,
+				  headset_amp_source_text);
+static const struct snd_kcontrol_new headset_amp_source_mux =
+	SOC_DAPM_ENUM("Headset Amp Source MUX", headset_amp_source);
+
+static const struct snd_kcontrol_new cdcout_ctl =
+	SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_RX0, 18, 1, 0);
+
+static const struct snd_kcontrol_new adc_bypass_ctl =
+	SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_CODEC, 16, 1, 0);
+
 static const struct snd_kcontrol_new lamp_ctl =
 	SOC_DAPM_SINGLE("Switch", MC13783_AUDIO_RX0, 5, 1, 0);
 
@@ -464,12 +487,22 @@ static const struct snd_soc_dapm_widget mc13783_dapm_widgets[] = {
 	SND_SOC_DAPM_VIRT_MUX("PGA Right Input Mux", SND_SOC_NOPM, 0, 0,
 			      &right_input_mux),
 
+	SND_SOC_DAPM_MUX("Speaker Amp Source MUX", SND_SOC_NOPM, 0, 0,
+			 &speaker_amp_source_mux),
+
+	SND_SOC_DAPM_MUX("Headset Amp Source MUX", SND_SOC_NOPM, 0, 0,
+			 &headset_amp_source_mux),
+
 	SND_SOC_DAPM_PGA("PGA Left Input", SND_SOC_NOPM, 0, 0, NULL, 0),
 	SND_SOC_DAPM_PGA("PGA Right Input", SND_SOC_NOPM, 0, 0, NULL, 0),
 
 	SND_SOC_DAPM_ADC("ADC", "Capture", MC13783_AUDIO_CODEC, 11, 0),
 	SND_SOC_DAPM_SUPPLY("ADC_Reset", MC13783_AUDIO_CODEC, 15, 0, NULL, 0),
 
+	SND_SOC_DAPM_PGA("Voice CODEC PGA", MC13783_AUDIO_RX1, 0, 0, NULL, 0),
+	SND_SOC_DAPM_SWITCH("Voice CODEC Bypass", MC13783_AUDIO_CODEC, 16, 0,
+			&adc_bypass_ctl),
+
 /* Output */
 	SND_SOC_DAPM_SUPPLY("DAC_E", MC13783_AUDIO_DAC, 11, 0, NULL, 0),
 	SND_SOC_DAPM_SUPPLY("DAC_Reset", MC13783_AUDIO_DAC, 15, 0, NULL, 0),
@@ -477,10 +510,15 @@ static const struct snd_soc_dapm_widget mc13783_dapm_widgets[] = {
 	SND_SOC_DAPM_OUTPUT("RXOUTR"),
 	SND_SOC_DAPM_OUTPUT("HSL"),
 	SND_SOC_DAPM_OUTPUT("HSR"),
+	SND_SOC_DAPM_OUTPUT("LSPL"),
 	SND_SOC_DAPM_OUTPUT("LSP"),
 	SND_SOC_DAPM_OUTPUT("SP"),
+	SND_SOC_DAPM_OUTPUT("CDCOUT"),
 
-	SND_SOC_DAPM_SWITCH("Speaker Amp", MC13783_AUDIO_RX0, 3, 0, &samp_ctl),
+	SND_SOC_DAPM_SWITCH("CDCOUT Switch", MC13783_AUDIO_RX0, 18, 0,
+			&cdcout_ctl),
+	SND_SOC_DAPM_SWITCH("Speaker Amp Switch", MC13783_AUDIO_RX0, 3, 0,
+			&samp_ctl),
 	SND_SOC_DAPM_SWITCH("Loudspeaker Amp", SND_SOC_NOPM, 0, 0, &lamp_ctl),
 	SND_SOC_DAPM_SWITCH("Headset Amp Left", MC13783_AUDIO_RX0, 10, 0,
 			&hlamp_ctl),
@@ -515,20 +553,28 @@ static struct snd_soc_dapm_route mc13783_routes[] = {
 	{ "ADC", NULL, "PGA Right Input"},
 	{ "ADC", NULL, "ADC_Reset"},
 
+	{ "Voice CODEC PGA", "Voice CODEC Bypass", "ADC" },
+
+	{ "Speaker Amp Source MUX", "CODEC", "Voice CODEC PGA"},
+	{ "Speaker Amp Source MUX", "Right", "DAC PGA"},
+
+	{ "Headset Amp Source MUX", "CODEC", "Voice CODEC PGA"},
+	{ "Headset Amp Source MUX", "Mixer", "DAC PGA"},
+
 /* Output */
 	{ "HSL", NULL, "Headset Amp Left" },
 	{ "HSR", NULL, "Headset Amp Right"},
 	{ "RXOUTL", NULL, "Line out Amp Left"},
 	{ "RXOUTR", NULL, "Line out Amp Right"},
-	{ "SP", NULL, "Speaker Amp"},
-	{ "Speaker Amp", NULL, "DAC PGA"},
-	{ "LSP", NULL, "DAC PGA"},
-	{ "Headset Amp Left", NULL, "DAC PGA"},
-	{ "Headset Amp Right", NULL, "DAC PGA"},
+	{ "SP", "Speaker Amp Switch", "Speaker Amp Source MUX"},
+	{ "LSP", "Loudspeaker Amp", "Speaker Amp Source MUX"},
+	{ "HSL", "Headset Amp Left", "Headset Amp Source MUX"},
+	{ "HSR", "Headset Amp Right", "Headset Amp Source MUX"},
 	{ "Line out Amp Left", NULL, "DAC PGA"},
 	{ "Line out Amp Right", NULL, "DAC PGA"},
 	{ "DAC PGA", NULL, "DAC"},
 	{ "DAC", NULL, "DAC_E"},
+	{ "CDCOUT", "CDCOUT Switch", "Voice CODEC PGA"},
 };
 
 static const char * const mc13783_3d_mixer[] = {"Stereo", "Phase Mix",
-- 
cgit 


From e277e656804c85a0729d4fd8cdd3c8ab3e6b3b86 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Fri, 11 Oct 2013 09:30:24 +0800
Subject: regulator: Remove max_uV from struct regulator_linear_range

linear ranges means each range has linear voltage settings.
So we can calculate max_uV for each linear range in regulator core rather than
set the max_uV field in drivers.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/88pm800.c            | 14 ++++++--------
 drivers/regulator/as3711-regulator.c   | 25 +++++++++++--------------
 drivers/regulator/as3722-regulator.c   |  1 -
 drivers/regulator/da903x.c             |  6 ++----
 drivers/regulator/helpers.c            |  6 +++++-
 drivers/regulator/tps65217-regulator.c | 24 ++++++++----------------
 drivers/regulator/tps65912-regulator.c |  9 +++------
 drivers/regulator/wm831x-ldo.c         | 12 ++++--------
 drivers/regulator/wm8350-regulator.c   |  6 ++----
 drivers/regulator/wm8400-regulator.c   |  6 ++----
 include/linux/regulator/driver.h       |  2 --
 11 files changed, 43 insertions(+), 68 deletions(-)

diff --git a/drivers/regulator/88pm800.c b/drivers/regulator/88pm800.c
index 3459f60dcfd1..22ba4c4280ee 100644
--- a/drivers/regulator/88pm800.c
+++ b/drivers/regulator/88pm800.c
@@ -141,18 +141,16 @@ struct pm800_regulators {
 
 /* Ranges are sorted in ascending order. */
 static const struct regulator_linear_range buck1_volt_range[] = {
-	{ .min_uV = 600000, .max_uV = 1587500, .min_sel = 0, .max_sel = 0x4f,
-	  .uV_step = 12500 },
-	{ .min_uV = 1600000, .max_uV = 1800000, .min_sel = 0x50,
-	  .max_sel = 0x54, .uV_step = 50000 },
+	{ .min_uV = 600000, .min_sel = 0, .max_sel = 0x4f, .uV_step = 12500 },
+	{ .min_uV = 1600000, .min_sel = 0x50, .max_sel = 0x54,
+	  .uV_step = 50000 },
 };
 
 /* BUCK 2~5 have same ranges. */
 static const struct regulator_linear_range buck2_5_volt_range[] = {
-	{ .min_uV = 600000, .max_uV = 1587500,	.min_sel = 0, .max_sel = 0x4f,
-	  .uV_step = 12500 },
-	{ .min_uV = 1600000, .max_uV = 3300000, .min_sel = 0x50,
-	  .max_sel = 0x72, .uV_step = 50000 },
+	{ .min_uV = 600000, .min_sel = 0, .max_sel = 0x4f, .uV_step = 12500 },
+	{ .min_uV = 1600000, .min_sel = 0x50, .max_sel = 0x72,
+	  .uV_step = 50000 },
 };
 
 static const unsigned int ldo1_volt_table[] = {
diff --git a/drivers/regulator/as3711-regulator.c b/drivers/regulator/as3711-regulator.c
index 8406cd745da2..d0a97e5ea431 100644
--- a/drivers/regulator/as3711-regulator.c
+++ b/drivers/regulator/as3711-regulator.c
@@ -117,26 +117,23 @@ static struct regulator_ops as3711_dldo_ops = {
 };
 
 static const struct regulator_linear_range as3711_sd_ranges[] = {
-	{ .min_uV = 612500, .max_uV = 1400000,
-	  .min_sel = 0x1, .max_sel = 0x40, .uV_step = 12500 },
-	{ .min_uV = 1425000, .max_uV = 2600000,
-	  .min_sel = 0x41, .max_sel = 0x70, .uV_step = 25000 },
-	{ .min_uV = 2650000, .max_uV = 3350000,
-	  .min_sel = 0x71, .max_sel = 0x7f, .uV_step = 50000 },
+	{ .min_uV = 612500, .min_sel = 0x1, .max_sel = 0x40, .uV_step = 12500 },
+	{ .min_uV = 1425000, .min_sel = 0x41, .max_sel = 0x70,
+	  .uV_step = 25000 },
+	{ .min_uV = 2650000, .min_sel = 0x71, .max_sel = 0x7f,
+	  .uV_step = 50000 },
 };
 
 static const struct regulator_linear_range as3711_aldo_ranges[] = {
-	{ .min_uV = 1200000, .max_uV = 1950000,
-	  .min_sel = 0, .max_sel = 0xf, .uV_step = 50000 },
-	{ .min_uV = 1800000, .max_uV = 3300000,
-	  .min_sel = 0x10, .max_sel = 0x1f, .uV_step = 100000 },
+	{ .min_uV = 1200000, .min_sel = 0, .max_sel = 0xf, .uV_step = 50000 },
+	{ .min_uV = 1800000, .min_sel = 0x10, .max_sel = 0x1f,
+	  .uV_step = 100000 },
 };
 
 static const struct regulator_linear_range as3711_dldo_ranges[] = {
-	{ .min_uV = 900000, .max_uV = 1700000,
-	  .min_sel = 0, .max_sel = 0x10, .uV_step = 50000 },
-	{ .min_uV = 1750000, .max_uV = 3300000,
-	  .min_sel = 0x20, .max_sel = 0x3f, .uV_step = 50000 },
+	{ .min_uV = 900000, .min_sel = 0, .max_sel = 0x10, .uV_step = 50000 },
+	{ .min_uV = 1750000, .min_sel = 0x20, .max_sel = 0x3f,
+	  .uV_step = 50000 },
 };
 
 #define AS3711_REG(_id, _en_reg, _en_bit, _vmask, _vshift, _min_uV, _max_uV, _sfx)	\
diff --git a/drivers/regulator/as3722-regulator.c b/drivers/regulator/as3722-regulator.c
index d7b71a9c41f1..240ae6d2ee2a 100644
--- a/drivers/regulator/as3722-regulator.c
+++ b/drivers/regulator/as3722-regulator.c
@@ -441,7 +441,6 @@ static struct regulator_ops as3722_ldo3_extcntrl_ops = {
 		.max_sel = _max_sel,					\
 		.uV_step = _step_uV,					\
 		.min_uV = _min_uV,					\
-		.max_uV = _min_uV + (_max_sel - _min_sel) * _step_uV,	\
 	}
 
 static const struct regulator_linear_range as3722_ldo_ranges[] = {
diff --git a/drivers/regulator/da903x.c b/drivers/regulator/da903x.c
index f06854cf8cf5..90d55e066447 100644
--- a/drivers/regulator/da903x.c
+++ b/drivers/regulator/da903x.c
@@ -253,10 +253,8 @@ static int da9034_set_dvc_voltage_sel(struct regulator_dev *rdev,
 }
 
 static const struct regulator_linear_range da9034_ldo12_ranges[] = {
-	{ .min_uV = 1700000, .max_uV = 2050000, .min_sel =  0, .max_sel = 7,
-	  .uV_step =  50000 },
-	{ .min_uV = 2700000, .max_uV = 3050000, .min_sel =  8, .max_sel = 15,
-	  .uV_step =  50000 },
+	{ .min_uV = 1700000, .min_sel =  0, .max_sel = 7, .uV_step =  50000 },
+	{ .min_uV = 2700000, .min_sel =  8, .max_sel = 15, .uV_step =  50000 },
 };
 
 static struct regulator_ops da903x_regulator_ldo_ops = {
diff --git a/drivers/regulator/helpers.c b/drivers/regulator/helpers.c
index 6e30df14714b..e221a271ba56 100644
--- a/drivers/regulator/helpers.c
+++ b/drivers/regulator/helpers.c
@@ -284,9 +284,13 @@ int regulator_map_voltage_linear_range(struct regulator_dev *rdev,
 	}
 
 	for (i = 0; i < rdev->desc->n_linear_ranges; i++) {
+		int linear_max_uV;
+
 		range = &rdev->desc->linear_ranges[i];
+		linear_max_uV = range->min_uV +
+			(range->max_sel - range->min_sel) * range->uV_step;
 
-		if (!(min_uV <= range->max_uV && max_uV >= range->min_uV))
+		if (!(min_uV <= linear_max_uV && max_uV >= range->min_uV))
 			continue;
 
 		if (min_uV <= range->min_uV)
diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c
index 90861d68a0b0..484866f43681 100644
--- a/drivers/regulator/tps65217-regulator.c
+++ b/drivers/regulator/tps65217-regulator.c
@@ -52,25 +52,17 @@ static const unsigned int LDO1_VSEL_table[] = {
 };
 
 static const struct regulator_linear_range tps65217_uv1_ranges[] = {
-	{ .min_uV = 900000, .max_uV = 1500000, .min_sel =  0, .max_sel = 24,
-	  .uV_step = 25000 },
-	{ .min_uV = 1550000, .max_uV = 1800000, .min_sel = 25, .max_sel = 30,
-	  .uV_step = 50000 },
-	{ .min_uV = 1850000, .max_uV = 2900000, .min_sel = 31, .max_sel = 52,
-	  .uV_step = 50000 },
-	{ .min_uV = 3000000, .max_uV = 3200000, .min_sel = 53, .max_sel = 55,
-	  .uV_step = 100000 },
-	{ .min_uV = 3300000, .max_uV = 3300000, .min_sel = 56, .max_sel = 62,
-	  .uV_step = 0 },
+	{ .min_uV = 900000, .min_sel =  0, .max_sel = 24, .uV_step = 25000 },
+	{ .min_uV = 1550000, .min_sel = 25, .max_sel = 30, .uV_step = 50000 },
+	{ .min_uV = 1850000, .min_sel = 31, .max_sel = 52, .uV_step = 50000 },
+	{ .min_uV = 3000000, .min_sel = 53, .max_sel = 55, .uV_step = 100000 },
+	{ .min_uV = 3300000, .min_sel = 56, .max_sel = 62, .uV_step = 0 },
 };
 
 static const struct regulator_linear_range tps65217_uv2_ranges[] = {
-	{ .min_uV = 1500000, .max_uV = 1900000, .min_sel =  0, .max_sel = 8,
-	  .uV_step = 50000 },
-	{ .min_uV = 2000000, .max_uV = 2400000, .min_sel = 9, .max_sel = 13,
-	  .uV_step = 100000 },
-	{ .min_uV = 2450000, .max_uV = 3300000, .min_sel = 14, .max_sel = 31,
-	  .uV_step = 50000 },
+	{ .min_uV = 1500000, .min_sel =  0, .max_sel = 8, .uV_step = 50000 },
+	{ .min_uV = 2000000, .min_sel = 9, .max_sel = 13, .uV_step = 100000 },
+	{ .min_uV = 2450000, .min_sel = 14, .max_sel = 31, .uV_step = 50000 },
 };
 
 static int tps65217_pmic_enable(struct regulator_dev *dev)
diff --git a/drivers/regulator/tps65912-regulator.c b/drivers/regulator/tps65912-regulator.c
index 281e52ac64ba..9fc87d8c9ce5 100644
--- a/drivers/regulator/tps65912-regulator.c
+++ b/drivers/regulator/tps65912-regulator.c
@@ -119,12 +119,9 @@ struct tps65912_reg {
 };
 
 static const struct regulator_linear_range tps65912_ldo_ranges[] = {
-	{ .min_uV = 800000, .max_uV = 1600000, .min_sel =  0, .max_sel = 32,
-	  .uV_step = 25000 },
-	{ .min_uV = 1650000, .max_uV = 3000000, .min_sel = 33, .max_sel = 60,
-	  .uV_step = 50000 },
-	{ .min_uV = 3100000, .max_uV = 3300000, .min_sel = 61, .max_sel = 63,
-	  .uV_step = 100000 },
+	{ .min_uV = 800000, .min_sel =  0, .max_sel = 32, .uV_step = 25000 },
+	{ .min_uV = 1650000, .min_sel = 33, .max_sel = 60, .uV_step = 50000 },
+	{ .min_uV = 3100000, .min_sel = 61, .max_sel = 63, .uV_step = 100000 },
 };
 
 static int tps65912_get_range(struct tps65912_reg *pmic, int id)
diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c
index 2205fbc2c37b..a95814027b24 100644
--- a/drivers/regulator/wm831x-ldo.c
+++ b/drivers/regulator/wm831x-ldo.c
@@ -63,10 +63,8 @@ static irqreturn_t wm831x_ldo_uv_irq(int irq, void *data)
  */
 
 static const struct regulator_linear_range wm831x_gp_ldo_ranges[] = {
-	{ .min_uV =  900000, .max_uV = 1600000, .min_sel =  0, .max_sel = 14,
-	  .uV_step =  50000 },
-	{ .min_uV = 1700000, .max_uV = 3300000, .min_sel = 15, .max_sel = 31,
-	  .uV_step = 100000 },
+	{ .min_uV =  900000, .min_sel =  0, .max_sel = 14, .uV_step =  50000 },
+	{ .min_uV = 1700000, .min_sel = 15, .max_sel = 31, .uV_step = 100000 },
 };
 
 static int wm831x_gp_ldo_set_suspend_voltage(struct regulator_dev *rdev,
@@ -332,10 +330,8 @@ static struct platform_driver wm831x_gp_ldo_driver = {
  */
 
 static const struct regulator_linear_range wm831x_aldo_ranges[] = {
-	{ .min_uV = 1000000, .max_uV = 1600000, .min_sel =  0, .max_sel = 12,
-	  .uV_step =  50000 },
-	{ .min_uV = 1700000, .max_uV = 3500000, .min_sel = 13, .max_sel = 31,
-	  .uV_step = 100000 },
+	{ .min_uV = 1000000, .min_sel =  0, .max_sel = 12, .uV_step =  50000 },
+	{ .min_uV = 1700000, .min_sel = 13, .max_sel = 31, .uV_step = 100000 },
 };
 
 static int wm831x_aldo_set_suspend_voltage(struct regulator_dev *rdev,
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c
index 61ca9292a429..de9de26d0bfc 100644
--- a/drivers/regulator/wm8350-regulator.c
+++ b/drivers/regulator/wm8350-regulator.c
@@ -543,10 +543,8 @@ static int wm8350_dcdc_set_suspend_mode(struct regulator_dev *rdev,
 }
 
 static const struct regulator_linear_range wm8350_ldo_ranges[] = {
-	{ .min_uV =  900000, .max_uV = 1650000, .min_sel =  0, .max_sel = 15,
-	  .uV_step =  50000 },
-	{ .min_uV = 1800000, .max_uV = 3300000, .min_sel = 16, .max_sel = 31,
-	  .uV_step = 100000 },
+	{ .min_uV =  900000, .min_sel =  0, .max_sel = 15, .uV_step =  50000 },
+	{ .min_uV = 1800000, .min_sel = 16, .max_sel = 31, .uV_step = 100000 },
 };
 
 static int wm8350_ldo_set_suspend_voltage(struct regulator_dev *rdev, int uV)
diff --git a/drivers/regulator/wm8400-regulator.c b/drivers/regulator/wm8400-regulator.c
index 58f51bec13f2..3352b2090ed5 100644
--- a/drivers/regulator/wm8400-regulator.c
+++ b/drivers/regulator/wm8400-regulator.c
@@ -20,10 +20,8 @@
 #include <linux/mfd/wm8400-private.h>
 
 static const struct regulator_linear_range wm8400_ldo_ranges[] = {
-	{ .min_uV =  900000, .max_uV = 1600000, .min_sel = 0, .max_sel = 14,
-	  .uV_step =  50000 },
-	{ .min_uV = 1700000, .max_uV = 3300000, .min_sel = 15, .max_sel = 31,
-	  .uV_step = 100000 },
+	{ .min_uV =  900000, .min_sel = 0, .max_sel = 14, .uV_step =  50000 },
+	{ .min_uV = 1700000, .min_sel = 15, .max_sel = 31, .uV_step = 100000 },
 };
 
 static struct regulator_ops wm8400_ldo_ops = {
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 9bdad43ad228..997ff5c4d880 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -46,14 +46,12 @@ enum regulator_status {
  * regulator_list_linear_range().
  *
  * @min_uV:  Lowest voltage in range
- * @max_uV:  Highest voltage in range
  * @min_sel: Lowest selector for range
  * @max_sel: Highest selector for range
  * @uV_step: Step size
  */
 struct regulator_linear_range {
 	unsigned int min_uV;
-	unsigned int max_uV;
 	unsigned int min_sel;
 	unsigned int max_sel;
 	unsigned int uV_step;
-- 
cgit 


From 8828bae464b129abed95b748263f1ab53bdc5755 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Fri, 11 Oct 2013 09:32:18 +0800
Subject: regulator: Add REGULATOR_LINEAR_RANGE macro

Add REGULATOR_LINEAR_RANGE macro and convert regulator drivers to use it.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/88pm800.c            | 10 ++++------
 drivers/regulator/as3711-regulator.c   | 18 +++++++-----------
 drivers/regulator/as3722-regulator.c   | 18 +++++-------------
 drivers/regulator/da903x.c             |  4 ++--
 drivers/regulator/tps65217-regulator.c | 16 ++++++++--------
 drivers/regulator/tps65912-regulator.c |  6 +++---
 drivers/regulator/wm831x-ldo.c         |  8 ++++----
 drivers/regulator/wm8350-regulator.c   |  4 ++--
 drivers/regulator/wm8400-regulator.c   |  4 ++--
 include/linux/regulator/driver.h       |  9 +++++++++
 10 files changed, 46 insertions(+), 51 deletions(-)

diff --git a/drivers/regulator/88pm800.c b/drivers/regulator/88pm800.c
index 22ba4c4280ee..d333f7eac106 100644
--- a/drivers/regulator/88pm800.c
+++ b/drivers/regulator/88pm800.c
@@ -141,16 +141,14 @@ struct pm800_regulators {
 
 /* Ranges are sorted in ascending order. */
 static const struct regulator_linear_range buck1_volt_range[] = {
-	{ .min_uV = 600000, .min_sel = 0, .max_sel = 0x4f, .uV_step = 12500 },
-	{ .min_uV = 1600000, .min_sel = 0x50, .max_sel = 0x54,
-	  .uV_step = 50000 },
+	REGULATOR_LINEAR_RANGE(600000, 0, 0x4f, 12500),
+	REGULATOR_LINEAR_RANGE(1600000, 0x50, 0x54, 50000),
 };
 
 /* BUCK 2~5 have same ranges. */
 static const struct regulator_linear_range buck2_5_volt_range[] = {
-	{ .min_uV = 600000, .min_sel = 0, .max_sel = 0x4f, .uV_step = 12500 },
-	{ .min_uV = 1600000, .min_sel = 0x50, .max_sel = 0x72,
-	  .uV_step = 50000 },
+	REGULATOR_LINEAR_RANGE(600000, 0, 0x4f, 12500),
+	REGULATOR_LINEAR_RANGE(1600000, 0x50, 0x72, 50000),
 };
 
 static const unsigned int ldo1_volt_table[] = {
diff --git a/drivers/regulator/as3711-regulator.c b/drivers/regulator/as3711-regulator.c
index d0a97e5ea431..f8524f988bdc 100644
--- a/drivers/regulator/as3711-regulator.c
+++ b/drivers/regulator/as3711-regulator.c
@@ -117,23 +117,19 @@ static struct regulator_ops as3711_dldo_ops = {
 };
 
 static const struct regulator_linear_range as3711_sd_ranges[] = {
-	{ .min_uV = 612500, .min_sel = 0x1, .max_sel = 0x40, .uV_step = 12500 },
-	{ .min_uV = 1425000, .min_sel = 0x41, .max_sel = 0x70,
-	  .uV_step = 25000 },
-	{ .min_uV = 2650000, .min_sel = 0x71, .max_sel = 0x7f,
-	  .uV_step = 50000 },
+	REGULATOR_LINEAR_RANGE(612500, 0x1, 0x40, 12500),
+	REGULATOR_LINEAR_RANGE(1425000, 0x41, 0x70, 25000),
+	REGULATOR_LINEAR_RANGE(2650000, 0x71, 0x7f, 50000),
 };
 
 static const struct regulator_linear_range as3711_aldo_ranges[] = {
-	{ .min_uV = 1200000, .min_sel = 0, .max_sel = 0xf, .uV_step = 50000 },
-	{ .min_uV = 1800000, .min_sel = 0x10, .max_sel = 0x1f,
-	  .uV_step = 100000 },
+	REGULATOR_LINEAR_RANGE(1200000, 0, 0xf, 50000),
+	REGULATOR_LINEAR_RANGE(1800000, 0x10, 0x1f, 100000),
 };
 
 static const struct regulator_linear_range as3711_dldo_ranges[] = {
-	{ .min_uV = 900000, .min_sel = 0, .max_sel = 0x10, .uV_step = 50000 },
-	{ .min_uV = 1750000, .min_sel = 0x20, .max_sel = 0x3f,
-	  .uV_step = 50000 },
+	REGULATOR_LINEAR_RANGE(900000, 0, 0x10, 50000),
+	REGULATOR_LINEAR_RANGE(1750000, 0x20, 0x3f, 50000),
 };
 
 #define AS3711_REG(_id, _en_reg, _en_bit, _vmask, _vshift, _min_uV, _max_uV, _sfx)	\
diff --git a/drivers/regulator/as3722-regulator.c b/drivers/regulator/as3722-regulator.c
index 240ae6d2ee2a..5917fe3dc983 100644
--- a/drivers/regulator/as3722-regulator.c
+++ b/drivers/regulator/as3722-regulator.c
@@ -435,17 +435,9 @@ static struct regulator_ops as3722_ldo3_extcntrl_ops = {
 	.get_current_limit = as3722_ldo3_get_current_limit,
 };
 
-#define regulator_lin_range(_min_sel, _max_sel, _min_uV, _step_uV)	\
-	{								\
-		.min_sel = _min_sel,					\
-		.max_sel = _max_sel,					\
-		.uV_step = _step_uV,					\
-		.min_uV = _min_uV,					\
-	}
-
 static const struct regulator_linear_range as3722_ldo_ranges[] = {
-	regulator_lin_range(0x01, 0x24,  825000, 25000),
-	regulator_lin_range(0x40, 0x7F, 1725000, 25000),
+	REGULATOR_LINEAR_RANGE(825000, 0x01, 0x24, 25000),
+	REGULATOR_LINEAR_RANGE(1725000, 0x40, 0x7F, 25000),
 };
 
 static struct regulator_ops as3722_ldo_ops = {
@@ -604,9 +596,9 @@ static int as3722_sd016_set_current_limit(struct regulator_dev *rdev,
 }
 
 static const struct regulator_linear_range as3722_sd2345_ranges[] = {
-	regulator_lin_range(0x01, 0x40,  612500, 12500),
-	regulator_lin_range(0x41, 0x70, 1425000, 25000),
-	regulator_lin_range(0x71, 0x7F, 2650000, 50000),
+	REGULATOR_LINEAR_RANGE(612500, 0x01, 0x40, 12500),
+	REGULATOR_LINEAR_RANGE(1425000, 0x41, 0x70, 25000),
+	REGULATOR_LINEAR_RANGE(2650000, 0x71, 0x7F, 50000),
 };
 
 static struct regulator_ops as3722_sd016_ops = {
diff --git a/drivers/regulator/da903x.c b/drivers/regulator/da903x.c
index 90d55e066447..6d1b799ad86b 100644
--- a/drivers/regulator/da903x.c
+++ b/drivers/regulator/da903x.c
@@ -253,8 +253,8 @@ static int da9034_set_dvc_voltage_sel(struct regulator_dev *rdev,
 }
 
 static const struct regulator_linear_range da9034_ldo12_ranges[] = {
-	{ .min_uV = 1700000, .min_sel =  0, .max_sel = 7, .uV_step =  50000 },
-	{ .min_uV = 2700000, .min_sel =  8, .max_sel = 15, .uV_step =  50000 },
+	REGULATOR_LINEAR_RANGE(1700000, 0, 7, 50000),
+	REGULATOR_LINEAR_RANGE(2700000, 8, 15, 50000),
 };
 
 static struct regulator_ops da903x_regulator_ldo_ops = {
diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c
index 484866f43681..bbc7277fa097 100644
--- a/drivers/regulator/tps65217-regulator.c
+++ b/drivers/regulator/tps65217-regulator.c
@@ -52,17 +52,17 @@ static const unsigned int LDO1_VSEL_table[] = {
 };
 
 static const struct regulator_linear_range tps65217_uv1_ranges[] = {
-	{ .min_uV = 900000, .min_sel =  0, .max_sel = 24, .uV_step = 25000 },
-	{ .min_uV = 1550000, .min_sel = 25, .max_sel = 30, .uV_step = 50000 },
-	{ .min_uV = 1850000, .min_sel = 31, .max_sel = 52, .uV_step = 50000 },
-	{ .min_uV = 3000000, .min_sel = 53, .max_sel = 55, .uV_step = 100000 },
-	{ .min_uV = 3300000, .min_sel = 56, .max_sel = 62, .uV_step = 0 },
+	REGULATOR_LINEAR_RANGE(900000, 0, 24, 25000),
+	REGULATOR_LINEAR_RANGE(1550000, 25, 30, 50000),
+	REGULATOR_LINEAR_RANGE(1850000, 31, 52, 50000),
+	REGULATOR_LINEAR_RANGE(3000000, 53, 55, 100000),
+	REGULATOR_LINEAR_RANGE(3300000, 56, 62, 0),
 };
 
 static const struct regulator_linear_range tps65217_uv2_ranges[] = {
-	{ .min_uV = 1500000, .min_sel =  0, .max_sel = 8, .uV_step = 50000 },
-	{ .min_uV = 2000000, .min_sel = 9, .max_sel = 13, .uV_step = 100000 },
-	{ .min_uV = 2450000, .min_sel = 14, .max_sel = 31, .uV_step = 50000 },
+	REGULATOR_LINEAR_RANGE(1500000, 0, 8, 50000),
+	REGULATOR_LINEAR_RANGE(2000000, 9, 13, 100000),
+	REGULATOR_LINEAR_RANGE(2450000, 14, 31, 50000),
 };
 
 static int tps65217_pmic_enable(struct regulator_dev *dev)
diff --git a/drivers/regulator/tps65912-regulator.c b/drivers/regulator/tps65912-regulator.c
index 9fc87d8c9ce5..697eab8e74d8 100644
--- a/drivers/regulator/tps65912-regulator.c
+++ b/drivers/regulator/tps65912-regulator.c
@@ -119,9 +119,9 @@ struct tps65912_reg {
 };
 
 static const struct regulator_linear_range tps65912_ldo_ranges[] = {
-	{ .min_uV = 800000, .min_sel =  0, .max_sel = 32, .uV_step = 25000 },
-	{ .min_uV = 1650000, .min_sel = 33, .max_sel = 60, .uV_step = 50000 },
-	{ .min_uV = 3100000, .min_sel = 61, .max_sel = 63, .uV_step = 100000 },
+	REGULATOR_LINEAR_RANGE(800000, 0, 32, 25000),
+	REGULATOR_LINEAR_RANGE(1650000, 33, 60, 50000),
+	REGULATOR_LINEAR_RANGE(3100000, 61, 63, 100000),
 };
 
 static int tps65912_get_range(struct tps65912_reg *pmic, int id)
diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c
index a95814027b24..9111b651c353 100644
--- a/drivers/regulator/wm831x-ldo.c
+++ b/drivers/regulator/wm831x-ldo.c
@@ -63,8 +63,8 @@ static irqreturn_t wm831x_ldo_uv_irq(int irq, void *data)
  */
 
 static const struct regulator_linear_range wm831x_gp_ldo_ranges[] = {
-	{ .min_uV =  900000, .min_sel =  0, .max_sel = 14, .uV_step =  50000 },
-	{ .min_uV = 1700000, .min_sel = 15, .max_sel = 31, .uV_step = 100000 },
+	REGULATOR_LINEAR_RANGE(900000, 0, 14, 50000),
+	REGULATOR_LINEAR_RANGE(1700000, 15, 31, 100000),
 };
 
 static int wm831x_gp_ldo_set_suspend_voltage(struct regulator_dev *rdev,
@@ -330,8 +330,8 @@ static struct platform_driver wm831x_gp_ldo_driver = {
  */
 
 static const struct regulator_linear_range wm831x_aldo_ranges[] = {
-	{ .min_uV = 1000000, .min_sel =  0, .max_sel = 12, .uV_step =  50000 },
-	{ .min_uV = 1700000, .min_sel = 13, .max_sel = 31, .uV_step = 100000 },
+	REGULATOR_LINEAR_RANGE(1000000, 0, 12, 50000),
+	REGULATOR_LINEAR_RANGE(1700000, 13, 31, 100000),
 };
 
 static int wm831x_aldo_set_suspend_voltage(struct regulator_dev *rdev,
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c
index de9de26d0bfc..3827539f3ad7 100644
--- a/drivers/regulator/wm8350-regulator.c
+++ b/drivers/regulator/wm8350-regulator.c
@@ -543,8 +543,8 @@ static int wm8350_dcdc_set_suspend_mode(struct regulator_dev *rdev,
 }
 
 static const struct regulator_linear_range wm8350_ldo_ranges[] = {
-	{ .min_uV =  900000, .min_sel =  0, .max_sel = 15, .uV_step =  50000 },
-	{ .min_uV = 1800000, .min_sel = 16, .max_sel = 31, .uV_step = 100000 },
+	REGULATOR_LINEAR_RANGE(900000, 0, 15, 50000),
+	REGULATOR_LINEAR_RANGE(1800000, 16, 31, 100000),
 };
 
 static int wm8350_ldo_set_suspend_voltage(struct regulator_dev *rdev, int uV)
diff --git a/drivers/regulator/wm8400-regulator.c b/drivers/regulator/wm8400-regulator.c
index 3352b2090ed5..8eedba2953f9 100644
--- a/drivers/regulator/wm8400-regulator.c
+++ b/drivers/regulator/wm8400-regulator.c
@@ -20,8 +20,8 @@
 #include <linux/mfd/wm8400-private.h>
 
 static const struct regulator_linear_range wm8400_ldo_ranges[] = {
-	{ .min_uV =  900000, .min_sel = 0, .max_sel = 14, .uV_step =  50000 },
-	{ .min_uV = 1700000, .min_sel = 15, .max_sel = 31, .uV_step = 100000 },
+	REGULATOR_LINEAR_RANGE(900000, 0, 14, 50000),
+	REGULATOR_LINEAR_RANGE(1700000, 15, 31, 100000),
 };
 
 static struct regulator_ops wm8400_ldo_ops = {
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 997ff5c4d880..edb11b716dd3 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -57,6 +57,15 @@ struct regulator_linear_range {
 	unsigned int uV_step;
 };
 
+/* Initialize struct regulator_linear_range */
+#define REGULATOR_LINEAR_RANGE(_min_uV, _min_sel, _max_sel, _step_uV)	\
+{									\
+	.min_uV		= _min_uV,					\
+	.min_sel	= _min_sel,					\
+	.max_sel	= _max_sel,					\
+	.uV_step	= _step_uV,					\
+}
+
 /**
  * struct regulator_ops - regulator operations.
  *
-- 
cgit 


From 2a3115434a773fdc34ea125890f75fbc0b34dcaf Mon Sep 17 00:00:00 2001
From: Alexander Bondar <alexander.bondar@intel.com>
Date: Sun, 15 Sep 2013 16:17:48 +0200
Subject: iwlwifi: mvm: fix scan request's suspend time parameter

This fix is related to a scan request when associated (bgscan).
FW expects suspend time parameter in micro seconds while the driver
provides a value in time units. This bug leads to a high traffic
latency when scan is requested while traffic is in progress.

Signed-off-by: Alexander Bondar <alexander.bondar@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/scan.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/scan.c b/drivers/net/wireless/iwlwifi/mvm/scan.c
index 621fb71f282a..3a06832e8e90 100644
--- a/drivers/net/wireless/iwlwifi/mvm/scan.c
+++ b/drivers/net/wireless/iwlwifi/mvm/scan.c
@@ -93,10 +93,10 @@ static inline __le32 iwl_mvm_scan_max_out_time(struct ieee80211_vif *vif)
 
 static inline __le32 iwl_mvm_scan_suspend_time(struct ieee80211_vif *vif)
 {
-	if (vif->bss_conf.assoc)
-		return cpu_to_le32(vif->bss_conf.beacon_int);
-	else
+	if (!vif->bss_conf.assoc)
 		return 0;
+
+	return cpu_to_le32(ieee80211_tu_to_usec(vif->bss_conf.beacon_int));
 }
 
 static inline __le32
-- 
cgit 


From e2d6f4e71dc76c815434234cb58c410871888e53 Mon Sep 17 00:00:00 2001
From: Eran Harary <eran.harary@intel.com>
Date: Wed, 2 Oct 2013 13:53:40 +0300
Subject: iwlwifi: support Signed firmware image and Dual CPUs

Support Signed firmware based on code signing system (CSS)
protocol and dual CPUs download,
the code recognize if there are more than one CPU and
if we need to operate the signed protocol according to
the ucode binary image

Signed-off-by: Eran Harary <eran.harary@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-csr.h     |  32 ++++++++
 drivers/net/wireless/iwlwifi/iwl-drv.c     |  37 +++++++++
 drivers/net/wireless/iwlwifi/iwl-fw-file.h |   4 +
 drivers/net/wireless/iwlwifi/iwl-fw.h      |   5 +-
 drivers/net/wireless/iwlwifi/pcie/trans.c  | 124 ++++++++++++++++++++++++++++-
 5 files changed, 197 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-csr.h b/drivers/net/wireless/iwlwifi/iwl-csr.h
index a276af476e2d..54a4fdc631b7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-csr.h
+++ b/drivers/net/wireless/iwlwifi/iwl-csr.h
@@ -394,6 +394,38 @@
 #define CSR_DRAM_INT_TBL_ENABLE		(1 << 31)
 #define CSR_DRAM_INIT_TBL_WRAP_CHECK	(1 << 27)
 
+/* SECURE boot registers */
+#define CSR_SECURE_BOOT_CONFIG_ADDR	(0x100)
+enum secure_boot_config_reg {
+	CSR_SECURE_BOOT_CONFIG_INSPECTOR_BURNED_IN_OTP	= 0x00000001,
+	CSR_SECURE_BOOT_CONFIG_INSPECTOR_NOT_REQ	= 0x00000002,
+};
+
+#define CSR_SECURE_BOOT_CPU1_STATUS_ADDR	(0x100)
+#define CSR_SECURE_BOOT_CPU2_STATUS_ADDR	(0x100)
+enum secure_boot_status_reg {
+	CSR_SECURE_BOOT_CPU_STATUS_VERF_STATUS		= 0x00000003,
+	CSR_SECURE_BOOT_CPU_STATUS_VERF_COMPLETED	= 0x00000002,
+	CSR_SECURE_BOOT_CPU_STATUS_VERF_SUCCESS		= 0x00000004,
+	CSR_SECURE_BOOT_CPU_STATUS_VERF_FAIL		= 0x00000008,
+	CSR_SECURE_BOOT_CPU_STATUS_SIGN_VERF_FAIL	= 0x00000010,
+};
+
+#define CSR_UCODE_LOAD_STATUS_ADDR	(0x100)
+enum secure_load_status_reg {
+	CSR_CPU_STATUS_LOADING_STARTED			= 0x00000001,
+	CSR_CPU_STATUS_LOADING_COMPLETED		= 0x00000002,
+	CSR_CPU_STATUS_NUM_OF_LAST_COMPLETED		= 0x000000F8,
+	CSR_CPU_STATUS_NUM_OF_LAST_LOADED_BLOCK		= 0x0000FF00,
+};
+
+#define CSR_SECURE_INSPECTOR_CODE_ADDR	(0x100)
+#define CSR_SECURE_INSPECTOR_DATA_ADDR	(0x100)
+
+#define CSR_SECURE_TIME_OUT	(100)
+
+#define FH_TCSR_0_REG0 (0x1D00)
+
 /*
  * HBUS (Host-side Bus)
  *
diff --git a/drivers/net/wireless/iwlwifi/iwl-drv.c b/drivers/net/wireless/iwlwifi/iwl-drv.c
index 99e1da3123c9..ff570027e9dd 100644
--- a/drivers/net/wireless/iwlwifi/iwl-drv.c
+++ b/drivers/net/wireless/iwlwifi/iwl-drv.c
@@ -483,6 +483,7 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 	const u8 *tlv_data;
 	char buildstr[25];
 	u32 build;
+	int num_of_cpus;
 
 	if (len < sizeof(*ucode)) {
 		IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
@@ -692,6 +693,42 @@ static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 				goto invalid_tlv_len;
 			drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
 			break;
+		 case IWL_UCODE_TLV_SECURE_SEC_RT:
+			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
+					    tlv_len);
+			drv->fw.mvm_fw = true;
+			drv->fw.img[IWL_UCODE_REGULAR].is_secure = true;
+			break;
+		case IWL_UCODE_TLV_SECURE_SEC_INIT:
+			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
+					    tlv_len);
+			drv->fw.mvm_fw = true;
+			drv->fw.img[IWL_UCODE_INIT].is_secure = true;
+			break;
+		case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
+			iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
+					    tlv_len);
+			drv->fw.mvm_fw = true;
+			drv->fw.img[IWL_UCODE_WOWLAN].is_secure = true;
+			break;
+		case IWL_UCODE_TLV_NUM_OF_CPU:
+			if (tlv_len != sizeof(u32))
+				goto invalid_tlv_len;
+			num_of_cpus =
+				le32_to_cpup((__le32 *)tlv_data);
+
+			if (num_of_cpus == 2) {
+				drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
+					true;
+				drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
+					true;
+				drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
+					true;
+			} else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
+				IWL_ERR(drv, "Driver support upto 2 CPUs\n");
+				return -EINVAL;
+			}
+			break;
 		default:
 			IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
 			break;
diff --git a/drivers/net/wireless/iwlwifi/iwl-fw-file.h b/drivers/net/wireless/iwlwifi/iwl-fw-file.h
index 8b6c6fd95ed0..6c6c35c5228c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw-file.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw-file.h
@@ -121,6 +121,10 @@ enum iwl_ucode_tlv_type {
 	IWL_UCODE_TLV_SEC_WOWLAN	= 21,
 	IWL_UCODE_TLV_DEF_CALIB		= 22,
 	IWL_UCODE_TLV_PHY_SKU		= 23,
+	IWL_UCODE_TLV_SECURE_SEC_RT	= 24,
+	IWL_UCODE_TLV_SECURE_SEC_INIT	= 25,
+	IWL_UCODE_TLV_SECURE_SEC_WOWLAN	= 26,
+	IWL_UCODE_TLV_NUM_OF_CPU	= 27,
 };
 
 struct iwl_ucode_tlv {
diff --git a/drivers/net/wireless/iwlwifi/iwl-fw.h b/drivers/net/wireless/iwlwifi/iwl-fw.h
index 6bdae0e9dd78..87b66a821ec8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw.h
@@ -154,7 +154,8 @@ enum iwl_ucode_sec {
  * For 16.0 uCode and above, there is no differentiation between sections,
  * just an offset to the HW address.
  */
-#define IWL_UCODE_SECTION_MAX 4
+#define IWL_UCODE_SECTION_MAX 6
+#define IWL_UCODE_FIRST_SECTION_OF_SECOND_CPU	(IWL_UCODE_SECTION_MAX/2)
 
 struct iwl_ucode_capabilities {
 	u32 max_probe_length;
@@ -171,6 +172,8 @@ struct fw_desc {
 
 struct fw_img {
 	struct fw_desc sec[IWL_UCODE_SECTION_MAX];
+	bool is_secure;
+	bool is_dual_cpus;
 };
 
 /* uCode version contains 4 values: Major/Minor/API/Serial */
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index 6392f67dc1af..5d9337bec67a 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -446,22 +446,138 @@ static int iwl_pcie_load_section(struct iwl_trans *trans, u8 section_num,
 	return ret;
 }
 
+static int iwl_pcie_secure_set(struct iwl_trans *trans, int cpu)
+{
+	int shift_param;
+	u32 address;
+	int ret = 0;
+
+	if (cpu == 1) {
+		shift_param = 0;
+		address = CSR_SECURE_BOOT_CPU1_STATUS_ADDR;
+	} else {
+		shift_param = 16;
+		address = CSR_SECURE_BOOT_CPU2_STATUS_ADDR;
+	}
+
+	/* set CPU to started */
+	iwl_trans_set_bits_mask(trans,
+				CSR_UCODE_LOAD_STATUS_ADDR,
+				CSR_CPU_STATUS_LOADING_STARTED << shift_param,
+				1);
+
+	/* set last complete descriptor number */
+	iwl_trans_set_bits_mask(trans,
+				CSR_UCODE_LOAD_STATUS_ADDR,
+				CSR_CPU_STATUS_NUM_OF_LAST_COMPLETED
+				<< shift_param,
+				1);
+
+	/* set last loaded block */
+	iwl_trans_set_bits_mask(trans,
+				CSR_UCODE_LOAD_STATUS_ADDR,
+				CSR_CPU_STATUS_NUM_OF_LAST_LOADED_BLOCK
+				<< shift_param,
+				1);
+
+	/* image loading complete */
+	iwl_trans_set_bits_mask(trans,
+				CSR_UCODE_LOAD_STATUS_ADDR,
+				CSR_CPU_STATUS_LOADING_COMPLETED
+				<< shift_param,
+				1);
+
+	/* set FH_TCSR_0_REG  */
+	iwl_trans_set_bits_mask(trans, FH_TCSR_0_REG0, 0x00400000, 1);
+
+	/* verify image verification started  */
+	ret = iwl_poll_bit(trans, address,
+			   CSR_SECURE_BOOT_CPU_STATUS_VERF_STATUS,
+			   CSR_SECURE_BOOT_CPU_STATUS_VERF_STATUS,
+			   CSR_SECURE_TIME_OUT);
+	if (ret < 0) {
+		IWL_ERR(trans, "secure boot process didn't start\n");
+		return ret;
+	}
+
+	/* wait for image verification to complete  */
+	ret = iwl_poll_bit(trans, address,
+			   CSR_SECURE_BOOT_CPU_STATUS_VERF_COMPLETED,
+			   CSR_SECURE_BOOT_CPU_STATUS_VERF_COMPLETED,
+			   CSR_SECURE_TIME_OUT);
+
+	if (ret < 0) {
+		IWL_ERR(trans, "Time out on secure boot process\n");
+		return ret;
+	}
+
+	return 0;
+}
+
 static int iwl_pcie_load_given_ucode(struct iwl_trans *trans,
 				const struct fw_img *image)
 {
 	int i, ret = 0;
 
-	for (i = 0; i < IWL_UCODE_SECTION_MAX; i++) {
+	IWL_DEBUG_FW(trans,
+		     "working with %s image\n",
+		     image->is_secure ? "Secured" : "Non Secured");
+	IWL_DEBUG_FW(trans,
+		     "working with %s CPU\n",
+		     image->is_dual_cpus ? "Dual" : "Single");
+
+	/* configure the ucode to be ready to get the secured image */
+	if (image->is_secure) {
+		/* set secure boot inspector addresses */
+		iwl_write32(trans, CSR_SECURE_INSPECTOR_CODE_ADDR, 0);
+		iwl_write32(trans, CSR_SECURE_INSPECTOR_DATA_ADDR, 0);
+
+		/* release CPU1 reset if secure inspector image burned in OTP */
+		iwl_write32(trans, CSR_RESET, 0);
+	}
+
+	/* load to FW the binary sections of CPU1 */
+	IWL_DEBUG_INFO(trans, "Loading CPU1\n");
+	for (i = 0;
+	     i < IWL_UCODE_FIRST_SECTION_OF_SECOND_CPU;
+	     i++) {
 		if (!image->sec[i].data)
 			break;
-
 		ret = iwl_pcie_load_section(trans, i, &image->sec[i]);
 		if (ret)
 			return ret;
 	}
 
-	/* Remove all resets to allow NIC to operate */
-	iwl_write32(trans, CSR_RESET, 0);
+	/* configure the ucode to start secure process on CPU1 */
+	if (image->is_secure) {
+		/* config CPU1 to start secure protocol */
+		ret = iwl_pcie_secure_set(trans, 1);
+		if (ret)
+			return ret;
+	} else {
+		/* Remove all resets to allow NIC to operate */
+		iwl_write32(trans, CSR_RESET, 0);
+	}
+
+	if (image->is_dual_cpus) {
+		/* load to FW the binary sections of CPU2 */
+		IWL_DEBUG_INFO(trans, "working w/ DUAL CPUs - Loading CPU2\n");
+		for (i = IWL_UCODE_FIRST_SECTION_OF_SECOND_CPU;
+			i < IWL_UCODE_SECTION_MAX; i++) {
+			if (!image->sec[i].data)
+				break;
+			ret = iwl_pcie_load_section(trans, i, &image->sec[i]);
+			if (ret)
+				return ret;
+		}
+
+		if (image->is_secure) {
+			/* set CPU2 for secure protocol */
+			ret = iwl_pcie_secure_set(trans, 2);
+			if (ret)
+				return ret;
+		}
+	}
 
 	return 0;
 }
-- 
cgit 


From c01fc9ada926aaad907989ca2eba40c2a2a73afe Mon Sep 17 00:00:00 2001
From: Sunil Dutt <c_duttus@qti.qualcomm.com>
Date: Wed, 9 Oct 2013 20:45:21 +0530
Subject: cfg80211: pass station supported channel and oper class info

The information of the peer's supported channels and supported operating
classes are required for the driver to perform TDLS off channel
operations. This commit enhances the function nl80211_(new)set_station
to pass this information of the peer to the driver.

Signed-off-by: Sunil Dutt <c_duttus@qti.qualcomm.com>
[return errors for malformed tuples]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 include/net/cfg80211.h       |  8 ++++++++
 include/uapi/linux/nl80211.h |  9 +++++++++
 net/wireless/nl80211.c       | 46 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 63 insertions(+)

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 45f6bf591104..5db5fe24eff6 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -744,6 +744,10 @@ enum station_parameters_apply_mask {
  * @capability: station capability
  * @ext_capab: extended capabilities of the station
  * @ext_capab_len: number of extended capabilities
+ * @supported_channels: supported channels in IEEE 802.11 format
+ * @supported_channels_len: number of supported channels
+ * @supported_oper_classes: supported oper classes in IEEE 802.11 format
+ * @supported_oper_classes_len: number of supported operating classes
  */
 struct station_parameters {
 	const u8 *supported_rates;
@@ -763,6 +767,10 @@ struct station_parameters {
 	u16 capability;
 	const u8 *ext_capab;
 	u8 ext_capab_len;
+	const u8 *supported_channels;
+	u8 supported_channels_len;
+	const u8 *supported_oper_classes;
+	u8 supported_oper_classes_len;
 };
 
 /**
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 8c0417c222c6..f2aef2a7a570 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -1496,6 +1496,11 @@ enum nl80211_commands {
  * @NL80211_ATTR_RXMGMT_FLAGS: flags for nl80211_send_mgmt(), u32.
  *	As specified in the &enum nl80211_rxmgmt_flags.
  *
+ * @NL80211_ATTR_STA_SUPPORTED_CHANNELS: array of supported channels.
+ *
+ * @NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES: array of supported
+ *      supported operating classes.
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
@@ -1806,6 +1811,10 @@ enum nl80211_attrs {
 
 	NL80211_ATTR_RXMGMT_FLAGS,
 
+	NL80211_ATTR_STA_SUPPORTED_CHANNELS,
+
+	NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES,
+
 	/* add attributes here, update the policy in nl80211.c */
 
 	__NL80211_ATTR_AFTER_LAST,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 2838206ddad3..460638ac2d73 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -354,6 +354,8 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
 	[NL80211_ATTR_CSA_IES] = { .type = NLA_NESTED },
 	[NL80211_ATTR_CSA_C_OFF_BEACON] = { .type = NLA_U16 },
 	[NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_U16 },
+	[NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
+	[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
 };
 
 /* policy for the key attributes */
@@ -3896,9 +3898,45 @@ static int nl80211_parse_sta_wme(struct genl_info *info,
 	return 0;
 }
 
+static int nl80211_parse_sta_channel_info(struct genl_info *info,
+				      struct station_parameters *params)
+{
+	if (info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]) {
+		params->supported_channels =
+		     nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
+		params->supported_channels_len =
+		     nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_CHANNELS]);
+		/*
+		 * Need to include at least one (first channel, number of
+		 * channels) tuple for each subband, and must have proper
+		 * tuples for the rest of the data as well.
+		 */
+		if (params->supported_channels_len < 2)
+			return -EINVAL;
+		if (params->supported_channels_len % 2)
+			return -EINVAL;
+	}
+
+	if (info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]) {
+		params->supported_oper_classes =
+		 nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
+		params->supported_oper_classes_len =
+		  nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES]);
+		/*
+		 * The value of the Length field of the Supported Operating
+		 * Classes element is between 2 and 253.
+		 */
+		if (params->supported_oper_classes_len < 2 ||
+		    params->supported_oper_classes_len > 253)
+			return -EINVAL;
+	}
+	return 0;
+}
+
 static int nl80211_set_station_tdls(struct genl_info *info,
 				    struct station_parameters *params)
 {
+	int err;
 	/* Dummy STA entry gets updated once the peer capabilities are known */
 	if (info->attrs[NL80211_ATTR_PEER_AID])
 		params->aid = nla_get_u16(info->attrs[NL80211_ATTR_PEER_AID]);
@@ -3909,6 +3947,10 @@ static int nl80211_set_station_tdls(struct genl_info *info,
 		params->vht_capa =
 			nla_data(info->attrs[NL80211_ATTR_VHT_CAPABILITY]);
 
+	err = nl80211_parse_sta_channel_info(info, params);
+	if (err)
+		return err;
+
 	return nl80211_parse_sta_wme(info, params);
 }
 
@@ -4089,6 +4131,10 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
 			return -EINVAL;
 	}
 
+	err = nl80211_parse_sta_channel_info(info, &params);
+	if (err)
+		return err;
+
 	err = nl80211_parse_sta_wme(info, &params);
 	if (err)
 		return err;
-- 
cgit 


From 7bd8f09f69f8a190f9b8334a07bb0a9237612314 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 11 Oct 2013 06:19:18 -0700
Subject: Bluetooth: Add hdev parameter to hdev->send driver callback

Instead of masking hdev inside the skb->dev parameter, hand it
directly to the driver as a parameter to hdev->send. This makes
the driver interface more clear and simpler.

This patch fixes all drivers to accept and handle the new parameter
of hdev->send callback. Special care has been taken for bpa10x
and btusb drivers that require having skb->dev set to hdev for
the URB transmit complete handlers.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/bfusb.c        | 3 +--
 drivers/bluetooth/bluecard_cs.c  | 3 +--
 drivers/bluetooth/bpa10x.c       | 5 +++--
 drivers/bluetooth/bt3c_cs.c      | 3 +--
 drivers/bluetooth/btmrvl_main.c  | 4 +---
 drivers/bluetooth/btsdio.c       | 3 +--
 drivers/bluetooth/btuart_cs.c    | 3 +--
 drivers/bluetooth/btusb.c        | 5 +++--
 drivers/bluetooth/btwilink.c     | 5 +----
 drivers/bluetooth/dtl1_cs.c      | 3 +--
 drivers/bluetooth/hci_ldisc.c    | 3 +--
 drivers/bluetooth/hci_ll.c       | 1 -
 drivers/bluetooth/hci_vhci.c     | 3 +--
 include/net/bluetooth/hci_core.h | 2 +-
 net/bluetooth/hci_core.c         | 4 +---
 15 files changed, 18 insertions(+), 32 deletions(-)

diff --git a/drivers/bluetooth/bfusb.c b/drivers/bluetooth/bfusb.c
index b7b5bb879f08..a6758490fa61 100644
--- a/drivers/bluetooth/bfusb.c
+++ b/drivers/bluetooth/bfusb.c
@@ -464,9 +464,8 @@ static int bfusb_close(struct hci_dev *hdev)
 	return 0;
 }
 
-static int bfusb_send_frame(struct sk_buff *skb)
+static int bfusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 	struct bfusb_data *data;
 	struct sk_buff *nskb;
 	unsigned char buf[3];
diff --git a/drivers/bluetooth/bluecard_cs.c b/drivers/bluetooth/bluecard_cs.c
index 395acde99d78..9194a1ba897f 100644
--- a/drivers/bluetooth/bluecard_cs.c
+++ b/drivers/bluetooth/bluecard_cs.c
@@ -658,10 +658,9 @@ static int bluecard_hci_close(struct hci_dev *hdev)
 }
 
 
-static int bluecard_hci_send_frame(struct sk_buff *skb)
+static int bluecard_hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	bluecard_info_t *info;
-	struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
 
 	if (!hdev) {
 		BT_ERR("Frame for unknown HCI device (hdev=NULL)");
diff --git a/drivers/bluetooth/bpa10x.c b/drivers/bluetooth/bpa10x.c
index 3188fb48bf4b..b9e4e621fb10 100644
--- a/drivers/bluetooth/bpa10x.c
+++ b/drivers/bluetooth/bpa10x.c
@@ -350,9 +350,8 @@ static int bpa10x_flush(struct hci_dev *hdev)
 	return 0;
 }
 
-static int bpa10x_send_frame(struct sk_buff *skb)
+static int bpa10x_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 	struct bpa10x_data *data = hci_get_drvdata(hdev);
 	struct usb_ctrlrequest *dr;
 	struct urb *urb;
@@ -364,6 +363,8 @@ static int bpa10x_send_frame(struct sk_buff *skb)
 	if (!test_bit(HCI_RUNNING, &hdev->flags))
 		return -EBUSY;
 
+	skb->dev = (void *) hdev;
+
 	urb = usb_alloc_urb(0, GFP_ATOMIC);
 	if (!urb)
 		return -ENOMEM;
diff --git a/drivers/bluetooth/bt3c_cs.c b/drivers/bluetooth/bt3c_cs.c
index d8e4b0d7926e..fcd5fe993ad0 100644
--- a/drivers/bluetooth/bt3c_cs.c
+++ b/drivers/bluetooth/bt3c_cs.c
@@ -415,10 +415,9 @@ static int bt3c_hci_close(struct hci_dev *hdev)
 }
 
 
-static int bt3c_hci_send_frame(struct sk_buff *skb)
+static int bt3c_hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	bt3c_info_t *info;
-	struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
 	unsigned long flags;
 
 	if (!hdev) {
diff --git a/drivers/bluetooth/btmrvl_main.c b/drivers/bluetooth/btmrvl_main.c
index 8ac4d938d89c..547a447149d3 100644
--- a/drivers/bluetooth/btmrvl_main.c
+++ b/drivers/bluetooth/btmrvl_main.c
@@ -187,7 +187,6 @@ static int btmrvl_send_sync_cmd(struct btmrvl_private *priv, u16 cmd_no,
 
 	bt_cb(skb)->pkt_type = MRVL_VENDOR_PKT;
 
-	skb->dev = (void *) priv->btmrvl_dev.hcidev;
 	skb_queue_head(&priv->adapter->tx_queue, skb);
 
 	priv->btmrvl_dev.sendcmdflag = true;
@@ -356,9 +355,8 @@ static void btmrvl_free_adapter(struct btmrvl_private *priv)
 	priv->adapter = NULL;
 }
 
-static int btmrvl_send_frame(struct sk_buff *skb)
+static int btmrvl_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 	struct btmrvl_private *priv = NULL;
 
 	BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len);
diff --git a/drivers/bluetooth/btsdio.c b/drivers/bluetooth/btsdio.c
index 72fe49e60359..b61440aaee65 100644
--- a/drivers/bluetooth/btsdio.c
+++ b/drivers/bluetooth/btsdio.c
@@ -254,9 +254,8 @@ static int btsdio_flush(struct hci_dev *hdev)
 	return 0;
 }
 
-static int btsdio_send_frame(struct sk_buff *skb)
+static int btsdio_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 	struct btsdio_data *data = hci_get_drvdata(hdev);
 
 	BT_DBG("%s", hdev->name);
diff --git a/drivers/bluetooth/btuart_cs.c b/drivers/bluetooth/btuart_cs.c
index d0b89ecf1c59..f567cd8424c3 100644
--- a/drivers/bluetooth/btuart_cs.c
+++ b/drivers/bluetooth/btuart_cs.c
@@ -423,10 +423,9 @@ static int btuart_hci_close(struct hci_dev *hdev)
 }
 
 
-static int btuart_hci_send_frame(struct sk_buff *skb)
+static int btuart_hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	btuart_info_t *info;
-	struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
 
 	if (!hdev) {
 		BT_ERR("Frame for unknown HCI device (hdev=NULL)");
diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index faa429f7d8a1..621069cb3053 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -716,9 +716,8 @@ static int btusb_flush(struct hci_dev *hdev)
 	return 0;
 }
 
-static int btusb_send_frame(struct sk_buff *skb)
+static int btusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	struct hci_dev *hdev = (struct hci_dev *) skb->dev;
 	struct btusb_data *data = hci_get_drvdata(hdev);
 	struct usb_ctrlrequest *dr;
 	struct urb *urb;
@@ -730,6 +729,8 @@ static int btusb_send_frame(struct sk_buff *skb)
 	if (!test_bit(HCI_RUNNING, &hdev->flags))
 		return -EBUSY;
 
+	skb->dev = (void *) hdev;
+
 	switch (bt_cb(skb)->pkt_type) {
 	case HCI_COMMAND_PKT:
 		urb = usb_alloc_urb(0, GFP_ATOMIC);
diff --git a/drivers/bluetooth/btwilink.c b/drivers/bluetooth/btwilink.c
index 5e10fb0a7e05..f038dba19e36 100644
--- a/drivers/bluetooth/btwilink.c
+++ b/drivers/bluetooth/btwilink.c
@@ -251,14 +251,11 @@ static int ti_st_close(struct hci_dev *hdev)
 	return err;
 }
 
-static int ti_st_send_frame(struct sk_buff *skb)
+static int ti_st_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	struct hci_dev *hdev;
 	struct ti_st *hst;
 	long len;
 
-	hdev = (struct hci_dev *)skb->dev;
-
 	if (!test_bit(HCI_RUNNING, &hdev->flags))
 		return -EBUSY;
 
diff --git a/drivers/bluetooth/dtl1_cs.c b/drivers/bluetooth/dtl1_cs.c
index 29451413bc04..ad1a2f9dc772 100644
--- a/drivers/bluetooth/dtl1_cs.c
+++ b/drivers/bluetooth/dtl1_cs.c
@@ -382,10 +382,9 @@ static int dtl1_hci_close(struct hci_dev *hdev)
 }
 
 
-static int dtl1_hci_send_frame(struct sk_buff *skb)
+static int dtl1_hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	dtl1_info_t *info;
-	struct hci_dev *hdev = (struct hci_dev *)(skb->dev);
 	struct sk_buff *s;
 	nsh_t nsh;
 
diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index bc68a440d432..b04054675c48 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -234,9 +234,8 @@ static int hci_uart_close(struct hci_dev *hdev)
 }
 
 /* Send frames from HCI layer */
-static int hci_uart_send_frame(struct sk_buff *skb)
+static int hci_uart_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	struct hci_dev* hdev = (struct hci_dev *) skb->dev;
 	struct hci_uart *hu;
 
 	if (!hdev) {
diff --git a/drivers/bluetooth/hci_ll.c b/drivers/bluetooth/hci_ll.c
index 58a9541feba6..69a90b1b5ff5 100644
--- a/drivers/bluetooth/hci_ll.c
+++ b/drivers/bluetooth/hci_ll.c
@@ -110,7 +110,6 @@ static int send_hcill_cmd(u8 cmd, struct hci_uart *hu)
 	/* prepare packet */
 	hcill_packet = (struct hcill_cmd *) skb_put(skb, 1);
 	hcill_packet->cmd = cmd;
-	skb->dev = (void *) hu->hdev;
 
 	/* send packet */
 	skb_queue_tail(&ll->txq, skb);
diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index 0fd522e85a71..e6f591969d95 100644
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -81,9 +81,8 @@ static int vhci_flush(struct hci_dev *hdev)
 	return 0;
 }
 
-static int vhci_send_frame(struct sk_buff *skb)
+static int vhci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	struct hci_dev* hdev = (struct hci_dev *) skb->dev;
 	struct vhci_data *data;
 
 	if (!hdev) {
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 29b81476424c..0e01dc257880 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -285,7 +285,7 @@ struct hci_dev {
 	int (*close)(struct hci_dev *hdev);
 	int (*flush)(struct hci_dev *hdev);
 	int (*setup)(struct hci_dev *hdev);
-	int (*send)(struct sk_buff *skb);
+	int (*send)(struct hci_dev *hdev, struct sk_buff *skb);
 	void (*notify)(struct hci_dev *hdev, unsigned int evt);
 };
 
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 4f0d4b443171..a097a623912a 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2713,9 +2713,7 @@ static void hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 	/* Get rid of skb owner, prior to sending to the driver. */
 	skb_orphan(skb);
 
-	skb->dev = (void *) hdev;
-
-	if (hdev->send(skb) < 0)
+	if (hdev->send(hdev, skb) < 0)
 		BT_ERR("%s sending frame failed", hdev->name);
 }
 
-- 
cgit 


From cea85247f8725fcad1ac7533ce5b32dace506cfc Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
Date: Wed, 2 Oct 2013 18:33:09 -0700
Subject: cfg80211: enable regulatory hints for strict custom settings

If we have a wiphy with an ISO3166-alpha2 regulatory domain
programmed with the strict flag set we wait until the wiphy
gets its wiphy->regd programmed before allowing regulatory
domains hints other than country IE hints from processing
on the wiphy. The existing check however discards the
possibility of custom regulatory domains having also used
the strict flag and these will not have the wiphy->regd
set. Custom strict regulatory domains never set the wiphy->regd
though as such currently all regulatory hints other than
country IE hints are being ignored on these wiphys.

All custom strict regulatory domains set the wiphy with the
WIPHY_FLAG_CUSTOM_REGULATORY and use wiphy_apply_custom_regulatory().
Enhance the check for the strict ISO3166-alpha2 regulatory domain
case by exempting the WIPHY_FLAG_CUSTOM_REGULATORY case. This
will enable other regulatory hints to be processed now for
these strict custom regulatory domains.

Cc: smihir@qti.qualcomm.com
Cc: tushnimb@qca.qualcomm.com
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/wireless/reg.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 8fbe664fdcf8..37c2a63d0697 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -997,6 +997,7 @@ static bool ignore_reg_update(struct wiphy *wiphy,
 	 */
 	if (wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY && !wiphy->regd &&
 	    initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE &&
+	    !(wiphy->flags & WIPHY_FLAG_CUSTOM_REGULATORY) &&
 	    !is_world_regdom(lr->alpha2)) {
 		REG_DBG_PRINT("Ignoring regulatory request %s since the driver requires its own regulatory domain to be set first\n",
 			      reg_initiator_name(initiator));
-- 
cgit 


From fa1fb9cb1c734204018d2b4e6f38c4a9b4146612 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
Date: Wed, 2 Oct 2013 18:33:10 -0700
Subject: cfg80211: simplify strict custom alpha2 regdomain check

This makes it easier to read.

Cc: smihir@qti.qualcomm.com
Cc: tushnimb@qca.qualcomm.com
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/wireless/reg.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 37c2a63d0697..edb2ba4e2a18 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -972,6 +972,13 @@ static bool reg_dev_ignore_cell_hint(struct wiphy *wiphy)
 }
 #endif
 
+static bool wiphy_strict_alpha2_regd(struct wiphy *wiphy)
+{
+	if (wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY &&
+	    !(wiphy->flags & WIPHY_FLAG_CUSTOM_REGULATORY))
+		return true;
+	return false;
+}
 
 static bool ignore_reg_update(struct wiphy *wiphy,
 			      enum nl80211_reg_initiator initiator)
@@ -995,9 +1002,8 @@ static bool ignore_reg_update(struct wiphy *wiphy,
 	 * wiphy->regd will be set once the device has its own
 	 * desired regulatory domain set
 	 */
-	if (wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY && !wiphy->regd &&
+	if (wiphy_strict_alpha2_regd(wiphy) && !wiphy->regd &&
 	    initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE &&
-	    !(wiphy->flags & WIPHY_FLAG_CUSTOM_REGULATORY) &&
 	    !is_world_regdom(lr->alpha2)) {
 		REG_DBG_PRINT("Ignoring regulatory request %s since the driver requires its own regulatory domain to be set first\n",
 			      reg_initiator_name(initiator));
-- 
cgit 


From 16b972a592ea2c9a3c2a3c12238de650fd4043a9 Mon Sep 17 00:00:00 2001
From: Felipe Balbi <balbi@ti.com>
Date: Fri, 11 Oct 2013 08:34:28 -0500
Subject: usb: dwc3: core: use pm_runtime_put_sync() on remove

We are going to disable runtime_pm and we're
removing the driver, we must disable the device
now.

Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/dwc3/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index e88ffae80cac..74f9cf02da07 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -584,7 +584,7 @@ static int dwc3_remove(struct platform_device *pdev)
 	usb_phy_set_suspend(dwc->usb2_phy, 1);
 	usb_phy_set_suspend(dwc->usb3_phy, 1);
 
-	pm_runtime_put(&pdev->dev);
+	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
 
 	dwc3_debugfs_exit(dwc);
-- 
cgit 


From 7ec7c4a9a686c608315739ab6a2b0527a240883c Mon Sep 17 00:00:00 2001
From: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Date: Thu, 10 Oct 2013 09:55:20 +0200
Subject: mac80211: port CCMP to cryptoapi's CCM driver

Use the generic CCM aead chaining mode driver rather than a local
implementation that sits right on top of the core AES cipher.

This allows the use of accelerated implementations of either
CCM as a whole or the CTR mode which it encapsulates.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/Kconfig   |   1 +
 net/mac80211/aes_ccm.c | 169 ++++++++++++++++---------------------------------
 net/mac80211/aes_ccm.h |  14 ++--
 net/mac80211/key.h     |   2 +-
 net/mac80211/wpa.c     |  44 ++++++-------
 5 files changed, 84 insertions(+), 146 deletions(-)

diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig
index 62535fe9f570..dc31ec3db404 100644
--- a/net/mac80211/Kconfig
+++ b/net/mac80211/Kconfig
@@ -4,6 +4,7 @@ config MAC80211
 	select CRYPTO
 	select CRYPTO_ARC4
 	select CRYPTO_AES
+	select CRYPTO_CCM
 	select CRC32
 	select AVERAGE
 	---help---
diff --git a/net/mac80211/aes_ccm.c b/net/mac80211/aes_ccm.c
index be7614b9ed27..7c7df475a401 100644
--- a/net/mac80211/aes_ccm.c
+++ b/net/mac80211/aes_ccm.c
@@ -2,6 +2,8 @@
  * Copyright 2003-2004, Instant802 Networks, Inc.
  * Copyright 2005-2006, Devicescape Software, Inc.
  *
+ * Rewrite: Copyright (C) 2013 Linaro Ltd <ard.biesheuvel@linaro.org>
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
@@ -17,134 +19,75 @@
 #include "key.h"
 #include "aes_ccm.h"
 
-static void aes_ccm_prepare(struct crypto_cipher *tfm, u8 *scratch, u8 *a)
+void ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
+			       u8 *data, size_t data_len, u8 *mic)
 {
-	int i;
-	u8 *b_0, *aad, *b, *s_0;
-
-	b_0 = scratch + 3 * AES_BLOCK_SIZE;
-	aad = scratch + 4 * AES_BLOCK_SIZE;
-	b = scratch;
-	s_0 = scratch + AES_BLOCK_SIZE;
-
-	crypto_cipher_encrypt_one(tfm, b, b_0);
+	struct scatterlist assoc, pt, ct[2];
+	struct {
+		struct aead_request	req;
+		u8			priv[crypto_aead_reqsize(tfm)];
+	} aead_req;
 
-	/* Extra Authenticate-only data (always two AES blocks) */
-	for (i = 0; i < AES_BLOCK_SIZE; i++)
-		aad[i] ^= b[i];
-	crypto_cipher_encrypt_one(tfm, b, aad);
+	memset(&aead_req, 0, sizeof(aead_req));
 
-	aad += AES_BLOCK_SIZE;
+	sg_init_one(&pt, data, data_len);
+	sg_init_one(&assoc, &aad[2], be16_to_cpup((__be16 *)aad));
+	sg_init_table(ct, 2);
+	sg_set_buf(&ct[0], data, data_len);
+	sg_set_buf(&ct[1], mic, IEEE80211_CCMP_MIC_LEN);
 
-	for (i = 0; i < AES_BLOCK_SIZE; i++)
-		aad[i] ^= b[i];
-	crypto_cipher_encrypt_one(tfm, a, aad);
+	aead_request_set_tfm(&aead_req.req, tfm);
+	aead_request_set_assoc(&aead_req.req, &assoc, assoc.length);
+	aead_request_set_crypt(&aead_req.req, &pt, ct, data_len, b_0);
 
-	/* Mask out bits from auth-only-b_0 */
-	b_0[0] &= 0x07;
-
-	/* S_0 is used to encrypt T (= MIC) */
-	b_0[14] = 0;
-	b_0[15] = 0;
-	crypto_cipher_encrypt_one(tfm, s_0, b_0);
+	crypto_aead_encrypt(&aead_req.req);
 }
 
-
-void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch,
-			       u8 *data, size_t data_len,
-			       u8 *cdata, u8 *mic)
+int ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
+			      u8 *data, size_t data_len, u8 *mic)
 {
-	int i, j, last_len, num_blocks;
-	u8 *pos, *cpos, *b, *s_0, *e, *b_0;
-
-	b = scratch;
-	s_0 = scratch + AES_BLOCK_SIZE;
-	e = scratch + 2 * AES_BLOCK_SIZE;
-	b_0 = scratch + 3 * AES_BLOCK_SIZE;
-
-	num_blocks = DIV_ROUND_UP(data_len, AES_BLOCK_SIZE);
-	last_len = data_len % AES_BLOCK_SIZE;
-	aes_ccm_prepare(tfm, scratch, b);
-
-	/* Process payload blocks */
-	pos = data;
-	cpos = cdata;
-	for (j = 1; j <= num_blocks; j++) {
-		int blen = (j == num_blocks && last_len) ?
-			last_len : AES_BLOCK_SIZE;
-
-		/* Authentication followed by encryption */
-		for (i = 0; i < blen; i++)
-			b[i] ^= pos[i];
-		crypto_cipher_encrypt_one(tfm, b, b);
-
-		b_0[14] = (j >> 8) & 0xff;
-		b_0[15] = j & 0xff;
-		crypto_cipher_encrypt_one(tfm, e, b_0);
-		for (i = 0; i < blen; i++)
-			*cpos++ = *pos++ ^ e[i];
-	}
-
-	for (i = 0; i < IEEE80211_CCMP_MIC_LEN; i++)
-		mic[i] = b[i] ^ s_0[i];
+	struct scatterlist assoc, pt, ct[2];
+	struct {
+		struct aead_request	req;
+		u8			priv[crypto_aead_reqsize(tfm)];
+	} aead_req;
+
+	memset(&aead_req, 0, sizeof(aead_req));
+
+	sg_init_one(&pt, data, data_len);
+	sg_init_one(&assoc, &aad[2], be16_to_cpup((__be16 *)aad));
+	sg_init_table(ct, 2);
+	sg_set_buf(&ct[0], data, data_len);
+	sg_set_buf(&ct[1], mic, IEEE80211_CCMP_MIC_LEN);
+
+	aead_request_set_tfm(&aead_req.req, tfm);
+	aead_request_set_assoc(&aead_req.req, &assoc, assoc.length);
+	aead_request_set_crypt(&aead_req.req, ct, &pt,
+			       data_len + IEEE80211_CCMP_MIC_LEN, b_0);
+
+	return crypto_aead_decrypt(&aead_req.req);
 }
 
-
-int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch,
-			      u8 *cdata, size_t data_len, u8 *mic, u8 *data)
+struct crypto_aead *ieee80211_aes_key_setup_encrypt(const u8 key[])
 {
-	int i, j, last_len, num_blocks;
-	u8 *pos, *cpos, *b, *s_0, *a, *b_0;
-
-	b = scratch;
-	s_0 = scratch + AES_BLOCK_SIZE;
-	a = scratch + 2 * AES_BLOCK_SIZE;
-	b_0 = scratch + 3 * AES_BLOCK_SIZE;
-
-	num_blocks = DIV_ROUND_UP(data_len, AES_BLOCK_SIZE);
-	last_len = data_len % AES_BLOCK_SIZE;
-	aes_ccm_prepare(tfm, scratch, a);
-
-	/* Process payload blocks */
-	cpos = cdata;
-	pos = data;
-	for (j = 1; j <= num_blocks; j++) {
-		int blen = (j == num_blocks && last_len) ?
-			last_len : AES_BLOCK_SIZE;
-
-		/* Decryption followed by authentication */
-		b_0[14] = (j >> 8) & 0xff;
-		b_0[15] = j & 0xff;
-		crypto_cipher_encrypt_one(tfm, b, b_0);
-		for (i = 0; i < blen; i++) {
-			*pos = *cpos++ ^ b[i];
-			a[i] ^= *pos++;
-		}
-		crypto_cipher_encrypt_one(tfm, a, a);
-	}
-
-	for (i = 0; i < IEEE80211_CCMP_MIC_LEN; i++) {
-		if ((mic[i] ^ s_0[i]) != a[i])
-			return -1;
-	}
-
-	return 0;
-}
+	struct crypto_aead *tfm;
+	int err;
 
+	tfm = crypto_alloc_aead("ccm(aes)", 0, CRYPTO_ALG_ASYNC);
+	if (IS_ERR(tfm))
+		return tfm;
 
-struct crypto_cipher *ieee80211_aes_key_setup_encrypt(const u8 key[])
-{
-	struct crypto_cipher *tfm;
+	err = crypto_aead_setkey(tfm, key, WLAN_KEY_LEN_CCMP);
+	if (!err)
+		err = crypto_aead_setauthsize(tfm, IEEE80211_CCMP_MIC_LEN);
+	if (!err)
+		return tfm;
 
-	tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
-	if (!IS_ERR(tfm))
-		crypto_cipher_setkey(tfm, key, WLAN_KEY_LEN_CCMP);
-
-	return tfm;
+	crypto_free_aead(tfm);
+	return ERR_PTR(err);
 }
 
-
-void ieee80211_aes_key_free(struct crypto_cipher *tfm)
+void ieee80211_aes_key_free(struct crypto_aead *tfm)
 {
-	crypto_free_cipher(tfm);
+	crypto_free_aead(tfm);
 }
diff --git a/net/mac80211/aes_ccm.h b/net/mac80211/aes_ccm.h
index 5b7d744e2370..2c7ab1948a2e 100644
--- a/net/mac80211/aes_ccm.h
+++ b/net/mac80211/aes_ccm.h
@@ -12,13 +12,11 @@
 
 #include <linux/crypto.h>
 
-struct crypto_cipher *ieee80211_aes_key_setup_encrypt(const u8 key[]);
-void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch,
-			       u8 *data, size_t data_len,
-			       u8 *cdata, u8 *mic);
-int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch,
-			      u8 *cdata, size_t data_len,
-			      u8 *mic, u8 *data);
-void ieee80211_aes_key_free(struct crypto_cipher *tfm);
+struct crypto_aead *ieee80211_aes_key_setup_encrypt(const u8 key[]);
+void ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
+			       u8 *data, size_t data_len, u8 *mic);
+int ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
+			      u8 *data, size_t data_len, u8 *mic);
+void ieee80211_aes_key_free(struct crypto_aead *tfm);
 
 #endif /* AES_CCM_H */
diff --git a/net/mac80211/key.h b/net/mac80211/key.h
index 036d57e76a5e..aaae0ed37004 100644
--- a/net/mac80211/key.h
+++ b/net/mac80211/key.h
@@ -83,7 +83,7 @@ struct ieee80211_key {
 			 * Management frames.
 			 */
 			u8 rx_pn[IEEE80211_NUM_TIDS + 1][IEEE80211_CCMP_PN_LEN];
-			struct crypto_cipher *tfm;
+			struct crypto_aead *tfm;
 			u32 replays; /* dot11RSNAStatsCCMPReplays */
 		} ccmp;
 		struct {
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index c9edfcb7a13b..d65728220763 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -301,22 +301,16 @@ ieee80211_crypto_tkip_decrypt(struct ieee80211_rx_data *rx)
 }
 
 
-static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *scratch,
+static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *b_0, u8 *aad,
 				int encrypted)
 {
 	__le16 mask_fc;
 	int a4_included, mgmt;
 	u8 qos_tid;
-	u8 *b_0, *aad;
-	u16 data_len, len_a;
+	u16 len_a;
 	unsigned int hdrlen;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 
-	memset(scratch, 0, 6 * AES_BLOCK_SIZE);
-
-	b_0 = scratch + 3 * AES_BLOCK_SIZE;
-	aad = scratch + 4 * AES_BLOCK_SIZE;
-
 	/*
 	 * Mask FC: zero subtype b4 b5 b6 (if not mgmt)
 	 * Retry, PwrMgt, MoreData; set Protected
@@ -338,20 +332,21 @@ static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *scratch,
 	else
 		qos_tid = 0;
 
-	data_len = skb->len - hdrlen - IEEE80211_CCMP_HDR_LEN;
-	if (encrypted)
-		data_len -= IEEE80211_CCMP_MIC_LEN;
+	/* In CCM, the initial vectors (IV) used for CTR mode encryption and CBC
+	 * mode authentication are not allowed to collide, yet both are derived
+	 * from this vector b_0. We only set L := 1 here to indicate that the
+	 * data size can be represented in (L+1) bytes. The CCM layer will take
+	 * care of storing the data length in the top (L+1) bytes and setting
+	 * and clearing the other bits as is required to derive the two IVs.
+	 */
+	b_0[0] = 0x1;
 
-	/* First block, b_0 */
-	b_0[0] = 0x59; /* flags: Adata: 1, M: 011, L: 001 */
 	/* Nonce: Nonce Flags | A2 | PN
 	 * Nonce Flags: Priority (b0..b3) | Management (b4) | Reserved (b5..b7)
 	 */
 	b_0[1] = qos_tid | (mgmt << 4);
 	memcpy(&b_0[2], hdr->addr2, ETH_ALEN);
 	memcpy(&b_0[8], pn, IEEE80211_CCMP_PN_LEN);
-	/* l(m) */
-	put_unaligned_be16(data_len, &b_0[14]);
 
 	/* AAD (extra authenticate-only data) / masked 802.11 header
 	 * FC | A1 | A2 | A3 | SC | [A4] | [QC] */
@@ -407,7 +402,8 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 	u8 *pos;
 	u8 pn[6];
 	u64 pn64;
-	u8 scratch[6 * AES_BLOCK_SIZE];
+	u8 aad[2 * AES_BLOCK_SIZE];
+	u8 b_0[AES_BLOCK_SIZE];
 
 	if (info->control.hw_key &&
 	    !(info->control.hw_key->flags & IEEE80211_KEY_FLAG_GENERATE_IV) &&
@@ -460,9 +456,9 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 		return 0;
 
 	pos += IEEE80211_CCMP_HDR_LEN;
-	ccmp_special_blocks(skb, pn, scratch, 0);
-	ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, scratch, pos, len,
-				  pos, skb_put(skb, IEEE80211_CCMP_MIC_LEN));
+	ccmp_special_blocks(skb, pn, b_0, aad, 0);
+	ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, b_0, aad, pos, len,
+				  skb_put(skb, IEEE80211_CCMP_MIC_LEN));
 
 	return 0;
 }
@@ -525,16 +521,16 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
 	}
 
 	if (!(status->flag & RX_FLAG_DECRYPTED)) {
-		u8 scratch[6 * AES_BLOCK_SIZE];
+		u8 aad[2 * AES_BLOCK_SIZE];
+		u8 b_0[AES_BLOCK_SIZE];
 		/* hardware didn't decrypt/verify MIC */
-		ccmp_special_blocks(skb, pn, scratch, 1);
+		ccmp_special_blocks(skb, pn, b_0, aad, 1);
 
 		if (ieee80211_aes_ccm_decrypt(
-			    key->u.ccmp.tfm, scratch,
+			    key->u.ccmp.tfm, b_0, aad,
 			    skb->data + hdrlen + IEEE80211_CCMP_HDR_LEN,
 			    data_len,
-			    skb->data + skb->len - IEEE80211_CCMP_MIC_LEN,
-			    skb->data + hdrlen + IEEE80211_CCMP_HDR_LEN))
+			    skb->data + skb->len - IEEE80211_CCMP_MIC_LEN))
 			return RX_DROP_UNUSABLE;
 	}
 
-- 
cgit 


From 1479e8411831c2112fa83b44664075e3ceea2533 Mon Sep 17 00:00:00 2001
From: Robert Baldyga <r.baldyga@samsung.com>
Date: Wed, 9 Oct 2013 08:41:57 +0200
Subject: usb: gadget: s3c-hsotg: add isochronous transfers support

This patch adds isochronous transfer support. It adds few modifications:
- Modify s3c_hsotg_epint() function. Some interrupts are ignored for
  isochronous endpoints, (e.g. INTknTXFEmpMsk) becouse isochronous request is
  always transfered in single transaction, which ends with XferCompl interrupt.
- Add Odd/Even microframe toggle to allow data transfering in each microframe
  in s3c_hsotg_epint() function.
- Fix s3c_hsotg_ep_enable() function by supporting isochronous endpoint type.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/s3c-hsotg.c | 27 +++++++++++++++++++++++----
 1 file changed, 23 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 424b2ad00ec7..961abcd71314 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -83,9 +83,11 @@ struct s3c_hsotg_req;
  * @dir_in: Set to true if this endpoint is of the IN direction, which
  *	    means that it is sending data to the Host.
  * @index: The index for the endpoint registers.
+ * @interval - Interval for periodic endpoints
  * @name: The name array passed to the USB core.
  * @halted: Set if the endpoint has been halted.
  * @periodic: Set if this is a periodic ep, such as Interrupt
+ * @isochronous: Set if this is a isochronous ep
  * @sent_zlp: Set if we've sent a zero-length packet.
  * @total_data: The total number of data bytes done.
  * @fifo_size: The size of the FIFO (for periodic IN endpoints)
@@ -121,9 +123,11 @@ struct s3c_hsotg_ep {
 
 	unsigned char		dir_in;
 	unsigned char		index;
+	unsigned char		interval;
 
 	unsigned int		halted:1;
 	unsigned int		periodic:1;
+	unsigned int		isochronous:1;
 	unsigned int		sent_zlp:1;
 
 	char			name[10];
@@ -1886,8 +1890,10 @@ static void s3c_hsotg_epint(struct s3c_hsotg *hsotg, unsigned int idx,
 	u32 epctl_reg = dir_in ? DIEPCTL(idx) : DOEPCTL(idx);
 	u32 epsiz_reg = dir_in ? DIEPTSIZ(idx) : DOEPTSIZ(idx);
 	u32 ints;
+	u32 ctrl;
 
 	ints = readl(hsotg->regs + epint_reg);
+	ctrl = readl(hsotg->regs + epctl_reg);
 
 	/* Clear endpoint interrupts */
 	writel(ints, hsotg->regs + epint_reg);
@@ -1896,6 +1902,14 @@ static void s3c_hsotg_epint(struct s3c_hsotg *hsotg, unsigned int idx,
 		__func__, idx, dir_in ? "in" : "out", ints);
 
 	if (ints & DxEPINT_XferCompl) {
+		if (hs_ep->isochronous && hs_ep->interval == 1) {
+			if (ctrl & DxEPCTL_EOFrNum)
+				ctrl |= DxEPCTL_SetEvenFr;
+			else
+				ctrl |= DxEPCTL_SetOddFr;
+			writel(ctrl, hsotg->regs + epctl_reg);
+		}
+
 		dev_dbg(hsotg->dev,
 			"%s: XferCompl: DxEPCTL=0x%08x, DxEPTSIZ=%08x\n",
 			__func__, readl(hsotg->regs + epctl_reg),
@@ -1962,7 +1976,7 @@ static void s3c_hsotg_epint(struct s3c_hsotg *hsotg, unsigned int idx,
 	if (ints & DxEPINT_Back2BackSetup)
 		dev_dbg(hsotg->dev, "%s: B2BSetup/INEPNakEff\n", __func__);
 
-	if (dir_in) {
+	if (dir_in && !hs_ep->isochronous) {
 		/* not sure if this is important, but we'll clear it anyway */
 		if (ints & DIEPMSK_INTknTXFEmpMsk) {
 			dev_dbg(hsotg->dev, "%s: ep%d: INTknTXFEmpMsk\n",
@@ -2581,13 +2595,18 @@ static int s3c_hsotg_ep_enable(struct usb_ep *ep,
 	s3c_hsotg_set_ep_maxpacket(hsotg, hs_ep->index, mps);
 
 	/* default, set to non-periodic */
+	hs_ep->isochronous = 0;
 	hs_ep->periodic = 0;
+	hs_ep->interval = desc->bInterval;
 
 	switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
 	case USB_ENDPOINT_XFER_ISOC:
-		dev_err(hsotg->dev, "no current ISOC support\n");
-		ret = -EINVAL;
-		goto out;
+		epctrl |= DxEPCTL_EPType_Iso;
+		epctrl |= DxEPCTL_SetEvenFr;
+		hs_ep->isochronous = 1;
+		if (dir_in)
+			hs_ep->periodic = 1;
+		break;
 
 	case USB_ENDPOINT_XFER_BULK:
 		epctrl |= DxEPCTL_EPType_Bulk;
-- 
cgit 


From 4fca54aa5829328a356aea31895b817dacba2861 Mon Sep 17 00:00:00 2001
From: Robert Baldyga <r.baldyga@samsung.com>
Date: Wed, 9 Oct 2013 09:00:02 +0200
Subject: usb: gadget: s3c-hsotg: add multi count support

This patch adds Multi Count support. It adds few modifications:
- Fix s3c_hsotg_set_ep_maxpacket() function. Field wMaxPacketSize of endpoint
  descriptor is now splitted into maximum packet size value and number of
  additional transaction per microframe.
- Modify s3c_hsotg_write_fifo() function. It actually calculates transfer
  size, taking into account Multi Count value, which indicates number of
  transactions per microframe.
- Fix s3c_hsotg_start_req() function by setting number of packets to Multi
  Count field in DIEPTSIZ register for isochronous endpoints.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/s3c-hsotg.c | 34 ++++++++++++++++++++++++++++------
 1 file changed, 28 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 961abcd71314..920e3c9af7d5 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -83,6 +83,7 @@ struct s3c_hsotg_req;
  * @dir_in: Set to true if this endpoint is of the IN direction, which
  *	    means that it is sending data to the Host.
  * @index: The index for the endpoint registers.
+ * @mc: Multi Count - number of transactions per microframe
  * @interval - Interval for periodic endpoints
  * @name: The name array passed to the USB core.
  * @halted: Set if the endpoint has been halted.
@@ -123,6 +124,7 @@ struct s3c_hsotg_ep {
 
 	unsigned char		dir_in;
 	unsigned char		index;
+	unsigned char		mc;
 	unsigned char		interval;
 
 	unsigned int		halted:1;
@@ -472,6 +474,7 @@ static int s3c_hsotg_write_fifo(struct s3c_hsotg *hsotg,
 	void *data;
 	int can_write;
 	int pkt_round;
+	int max_transfer;
 
 	to_write -= (buf_pos - hs_ep->last_load);
 
@@ -539,8 +542,10 @@ static int s3c_hsotg_write_fifo(struct s3c_hsotg *hsotg,
 		can_write *= 4;	/* fifo size is in 32bit quantities. */
 	}
 
-	dev_dbg(hsotg->dev, "%s: GNPTXSTS=%08x, can=%d, to=%d, mps %d\n",
-		 __func__, gnptxsts, can_write, to_write, hs_ep->ep.maxpacket);
+	max_transfer = hs_ep->ep.maxpacket * hs_ep->mc;
+
+	dev_dbg(hsotg->dev, "%s: GNPTXSTS=%08x, can=%d, to=%d, max_transfer %d\n",
+		 __func__, gnptxsts, can_write, to_write, max_transfer);
 
 	/*
 	 * limit to 512 bytes of data, it seems at least on the non-periodic
@@ -555,8 +560,8 @@ static int s3c_hsotg_write_fifo(struct s3c_hsotg *hsotg,
 	 * the transfer to return that it did not run out of fifo space
 	 * doing it.
 	 */
-	if (to_write > hs_ep->ep.maxpacket) {
-		to_write = hs_ep->ep.maxpacket;
+	if (to_write > max_transfer) {
+		to_write = max_transfer;
 
 		s3c_hsotg_en_gsint(hsotg,
 				   periodic ? GINTSTS_PTxFEmp :
@@ -567,7 +572,7 @@ static int s3c_hsotg_write_fifo(struct s3c_hsotg *hsotg,
 
 	if (to_write > can_write) {
 		to_write = can_write;
-		pkt_round = to_write % hs_ep->ep.maxpacket;
+		pkt_round = to_write % max_transfer;
 
 		/*
 		 * Round the write down to an
@@ -731,8 +736,16 @@ static void s3c_hsotg_start_req(struct s3c_hsotg *hsotg,
 	else
 		packets = 1;	/* send one packet if length is zero. */
 
+	if (hs_ep->isochronous && length > (hs_ep->mc * hs_ep->ep.maxpacket)) {
+		dev_err(hsotg->dev, "req length > maxpacket*mc\n");
+		return;
+	}
+
 	if (dir_in && index != 0)
-		epsize = DxEPTSIZ_MC(1);
+		if (hs_ep->isochronous)
+			epsize = DxEPTSIZ_MC(packets);
+		else
+			epsize = DxEPTSIZ_MC(1);
 	else
 		epsize = 0;
 
@@ -1702,6 +1715,7 @@ static void s3c_hsotg_set_ep_maxpacket(struct s3c_hsotg *hsotg,
 	struct s3c_hsotg_ep *hs_ep = &hsotg->eps[ep];
 	void __iomem *regs = hsotg->regs;
 	u32 mpsval;
+	u32 mcval;
 	u32 reg;
 
 	if (ep == 0) {
@@ -1710,10 +1724,15 @@ static void s3c_hsotg_set_ep_maxpacket(struct s3c_hsotg *hsotg,
 		if (mpsval > 3)
 			goto bad_mps;
 		hs_ep->ep.maxpacket = mps;
+		hs_ep->mc = 1;
 	} else {
 		mpsval = mps & DxEPCTL_MPS_MASK;
 		if (mpsval > 1024)
 			goto bad_mps;
+		mcval = ((mps >> 11) & 0x3) + 1;
+		hs_ep->mc = mcval;
+		if (mcval > 3)
+			goto bad_mps;
 		hs_ep->ep.maxpacket = mpsval;
 	}
 
@@ -2599,6 +2618,9 @@ static int s3c_hsotg_ep_enable(struct usb_ep *ep,
 	hs_ep->periodic = 0;
 	hs_ep->interval = desc->bInterval;
 
+	if (hs_ep->interval > 1 && hs_ep->mc > 1)
+		dev_err(hsotg->dev, "MC > 1 when interval is not 1\n");
+
 	switch (desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
 	case USB_ENDPOINT_XFER_ISOC:
 		epctrl |= DxEPCTL_EPType_Iso;
-- 
cgit 


From d56d6b3d7d693581d346b05d089f842b48b7ec0a Mon Sep 17 00:00:00 2001
From: David Cohen <david.a.cohen@linux.intel.com>
Date: Fri, 4 Oct 2013 13:01:40 -0700
Subject: gpio: langwell: add Intel Merrifield support

This patch implements a better way to handle multiple SoC's and adds
Intel Merrifield support to gpio-langwell.

It was based on previous work from Ning Li <ning.li@intel.com>

Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Fei Yang <fei.yang@intel.com>
Signed-off-by: Ning Li <ning.li@intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-langwell.c | 93 ++++++++++++++++++++++++++++++++++++++------
 1 file changed, 82 insertions(+), 11 deletions(-)

diff --git a/drivers/gpio/gpio-langwell.c b/drivers/gpio/gpio-langwell.c
index bfa1af1b519f..bf3b9597abd8 100644
--- a/drivers/gpio/gpio-langwell.c
+++ b/drivers/gpio/gpio-langwell.c
@@ -37,6 +37,9 @@
 #include <linux/pm_runtime.h>
 #include <linux/irqdomain.h>
 
+#define LNW_IRQ_TYPE_EDGE	(1 << 0)
+#define LNW_IRQ_TYPE_LEVEL	(1 << 1)
+
 /*
  * Langwell chip has 64 pins and thus there are 2 32bit registers to control
  * each feature, while Penwell chip has 96 pins for each block, and need 3 32bit
@@ -62,6 +65,16 @@ enum GPIO_REG {
 	GAFR,		/* alt function */
 };
 
+/* langwell gpio driver data */
+struct lnw_gpio_ddata {
+	u16 ngpio;		/* number of gpio pins */
+	u32 gplr_offset;	/* offset of first GPLR register from base */
+	u32 flis_base;		/* base address of FLIS registers */
+	u32 flis_len;		/* length of FLIS registers */
+	u32 (*get_flis_offset)(int gpio);
+	u32 chip_irq_type;	/* chip interrupt type */
+};
+
 struct lnw_gpio {
 	struct gpio_chip		chip;
 	void __iomem			*reg_base;
@@ -227,13 +240,71 @@ static struct irq_chip lnw_irqchip = {
 	.irq_set_type	= lnw_irq_type,
 };
 
-static DEFINE_PCI_DEVICE_TABLE(lnw_gpio_ids) = {   /* pin number */
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x080f), .driver_data = 64 },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x081f), .driver_data = 96 },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x081a), .driver_data = 96 },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x08eb), .driver_data = 96 },
-	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x08f7), .driver_data = 96 },
-	{ 0, }
+static const struct lnw_gpio_ddata gpio_lincroft = {
+	.ngpio = 64,
+};
+
+static const struct lnw_gpio_ddata gpio_penwell_aon = {
+	.ngpio = 96,
+	.chip_irq_type = LNW_IRQ_TYPE_EDGE,
+};
+
+static const struct lnw_gpio_ddata gpio_penwell_core = {
+	.ngpio = 96,
+	.chip_irq_type = LNW_IRQ_TYPE_EDGE,
+};
+
+static const struct lnw_gpio_ddata gpio_cloverview_aon = {
+	.ngpio = 96,
+	.chip_irq_type = LNW_IRQ_TYPE_EDGE | LNW_IRQ_TYPE_LEVEL,
+};
+
+static const struct lnw_gpio_ddata gpio_cloverview_core = {
+	.ngpio = 96,
+	.chip_irq_type = LNW_IRQ_TYPE_EDGE,
+};
+
+static const struct lnw_gpio_ddata gpio_tangier = {
+	.ngpio = 192,
+	.gplr_offset = 4,
+	.flis_base = 0xff0c0000,
+	.flis_len = 0x8000,
+	.get_flis_offset = NULL,
+	.chip_irq_type = LNW_IRQ_TYPE_EDGE,
+};
+
+static DEFINE_PCI_DEVICE_TABLE(lnw_gpio_ids) = {
+	{
+		/* Lincroft */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x080f),
+		.driver_data = (kernel_ulong_t)&gpio_lincroft,
+	},
+	{
+		/* Penwell AON */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x081f),
+		.driver_data = (kernel_ulong_t)&gpio_penwell_aon,
+	},
+	{
+		/* Penwell Core */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x081a),
+		.driver_data = (kernel_ulong_t)&gpio_penwell_core,
+	},
+	{
+		/* Cloverview Aon */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x08eb),
+		.driver_data = (kernel_ulong_t)&gpio_cloverview_aon,
+	},
+	{
+		/* Cloverview Core */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x08f7),
+		.driver_data = (kernel_ulong_t)&gpio_cloverview_core,
+	},
+	{
+		/* Tangier */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x1199),
+		.driver_data = (kernel_ulong_t)&gpio_tangier,
+	},
+	{ 0 }
 };
 MODULE_DEVICE_TABLE(pci, lnw_gpio_ids);
 
@@ -316,7 +387,7 @@ static int lnw_gpio_probe(struct pci_dev *pdev,
 	u32 gpio_base;
 	u32 irq_base;
 	int retval;
-	int ngpio = id->driver_data;
+	struct lnw_gpio_ddata *ddata = (struct lnw_gpio_ddata *)id->driver_data;
 
 	retval = pcim_enable_device(pdev);
 	if (retval)
@@ -351,14 +422,14 @@ static int lnw_gpio_probe(struct pci_dev *pdev,
 	lnw->chip.set = lnw_gpio_set;
 	lnw->chip.to_irq = lnw_gpio_to_irq;
 	lnw->chip.base = gpio_base;
-	lnw->chip.ngpio = ngpio;
+	lnw->chip.ngpio = ddata->ngpio;
 	lnw->chip.can_sleep = 0;
 	lnw->pdev = pdev;
 
 	spin_lock_init(&lnw->lock);
 
-	lnw->domain = irq_domain_add_simple(pdev->dev.of_node, ngpio, irq_base,
-					    &lnw_gpio_irq_ops, lnw);
+	lnw->domain = irq_domain_add_simple(pdev->dev.of_node, ddata->ngpio,
+					    irq_base, &lnw_gpio_irq_ops, lnw);
 	if (!lnw->domain)
 		return -ENOMEM;
 
-- 
cgit 


From 84743ea3690703efdd033f5435cf4211057e0324 Mon Sep 17 00:00:00 2001
From: David Cohen <david.a.cohen@linux.intel.com>
Date: Fri, 4 Oct 2013 13:01:41 -0700
Subject: gpio: rename gpio-langwell to gpio-intel-mid

gpio-langwell is a deprecated name. Despite the driver was made
initially for Langwell, it supports now other Intel Mid SoC's.

This patch does no change beside the file renaming with Kconfig/Makefile
update.

Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/Kconfig          |   6 +-
 drivers/gpio/Makefile         |   2 +-
 drivers/gpio/gpio-intel-mid.c | 468 ++++++++++++++++++++++++++++++++++++++++++
 drivers/gpio/gpio-langwell.c  | 468 ------------------------------------------
 4 files changed, 472 insertions(+), 472 deletions(-)
 create mode 100644 drivers/gpio/gpio-intel-mid.c
 delete mode 100644 drivers/gpio/gpio-langwell.c

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index c8b02a585baf..92e258c58638 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -621,12 +621,12 @@ config GPIO_AMD8111
 
 	  If unsure, say N
 
-config GPIO_LANGWELL
-	bool "Intel Langwell/Penwell GPIO support"
+config GPIO_INTEL_MID
+	bool "Intel Mid GPIO support"
 	depends on PCI && X86
 	select IRQ_DOMAIN
 	help
-	  Say Y here to support Intel Langwell/Penwell GPIO.
+	  Say Y here to support Intel Mid GPIO.
 
 config GPIO_PCH
 	tristate "Intel EG20T PCH/LAPIS Semiconductor IOH(ML7223/ML7831) GPIO"
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 5c353df1de25..7655a369e2b7 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -34,7 +34,7 @@ obj-$(CONFIG_GPIO_IT8761E)	+= gpio-it8761e.o
 obj-$(CONFIG_GPIO_JANZ_TTL)	+= gpio-janz-ttl.o
 obj-$(CONFIG_GPIO_KEMPLD)	+= gpio-kempld.o
 obj-$(CONFIG_ARCH_KS8695)	+= gpio-ks8695.o
-obj-$(CONFIG_GPIO_LANGWELL)	+= gpio-langwell.o
+obj-$(CONFIG_GPIO_INTEL_MID)	+= gpio-intel-mid.o
 obj-$(CONFIG_ARCH_LPC32XX)	+= gpio-lpc32xx.o
 obj-$(CONFIG_GPIO_LYNXPOINT)	+= gpio-lynxpoint.o
 obj-$(CONFIG_GPIO_MAX730X)	+= gpio-max730x.o
diff --git a/drivers/gpio/gpio-intel-mid.c b/drivers/gpio/gpio-intel-mid.c
new file mode 100644
index 000000000000..bf3b9597abd8
--- /dev/null
+++ b/drivers/gpio/gpio-intel-mid.c
@@ -0,0 +1,468 @@
+/*
+ * Moorestown platform Langwell chip GPIO driver
+ *
+ * Copyright (c) 2008, 2009, 2013, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+/* Supports:
+ * Moorestown platform Langwell chip.
+ * Medfield platform Penwell chip.
+ */
+
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/stddef.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+#include <linux/slab.h>
+#include <linux/pm_runtime.h>
+#include <linux/irqdomain.h>
+
+#define LNW_IRQ_TYPE_EDGE	(1 << 0)
+#define LNW_IRQ_TYPE_LEVEL	(1 << 1)
+
+/*
+ * Langwell chip has 64 pins and thus there are 2 32bit registers to control
+ * each feature, while Penwell chip has 96 pins for each block, and need 3 32bit
+ * registers to control them, so we only define the order here instead of a
+ * structure, to get a bit offset for a pin (use GPDR as an example):
+ *
+ * nreg = ngpio / 32;
+ * reg = offset / 32;
+ * bit = offset % 32;
+ * reg_addr = reg_base + GPDR * nreg * 4 + reg * 4;
+ *
+ * so the bit of reg_addr is to control pin offset's GPDR feature
+*/
+
+enum GPIO_REG {
+	GPLR = 0,	/* pin level read-only */
+	GPDR,		/* pin direction */
+	GPSR,		/* pin set */
+	GPCR,		/* pin clear */
+	GRER,		/* rising edge detect */
+	GFER,		/* falling edge detect */
+	GEDR,		/* edge detect result */
+	GAFR,		/* alt function */
+};
+
+/* langwell gpio driver data */
+struct lnw_gpio_ddata {
+	u16 ngpio;		/* number of gpio pins */
+	u32 gplr_offset;	/* offset of first GPLR register from base */
+	u32 flis_base;		/* base address of FLIS registers */
+	u32 flis_len;		/* length of FLIS registers */
+	u32 (*get_flis_offset)(int gpio);
+	u32 chip_irq_type;	/* chip interrupt type */
+};
+
+struct lnw_gpio {
+	struct gpio_chip		chip;
+	void __iomem			*reg_base;
+	spinlock_t			lock;
+	struct pci_dev			*pdev;
+	struct irq_domain		*domain;
+};
+
+#define to_lnw_priv(chip)	container_of(chip, struct lnw_gpio, chip)
+
+static void __iomem *gpio_reg(struct gpio_chip *chip, unsigned offset,
+			      enum GPIO_REG reg_type)
+{
+	struct lnw_gpio *lnw = to_lnw_priv(chip);
+	unsigned nreg = chip->ngpio / 32;
+	u8 reg = offset / 32;
+
+	return lnw->reg_base + reg_type * nreg * 4 + reg * 4;
+}
+
+static void __iomem *gpio_reg_2bit(struct gpio_chip *chip, unsigned offset,
+				   enum GPIO_REG reg_type)
+{
+	struct lnw_gpio *lnw = to_lnw_priv(chip);
+	unsigned nreg = chip->ngpio / 32;
+	u8 reg = offset / 16;
+
+	return lnw->reg_base + reg_type * nreg * 4 + reg * 4;
+}
+
+static int lnw_gpio_request(struct gpio_chip *chip, unsigned offset)
+{
+	void __iomem *gafr = gpio_reg_2bit(chip, offset, GAFR);
+	u32 value = readl(gafr);
+	int shift = (offset % 16) << 1, af = (value >> shift) & 3;
+
+	if (af) {
+		value &= ~(3 << shift);
+		writel(value, gafr);
+	}
+	return 0;
+}
+
+static int lnw_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+	void __iomem *gplr = gpio_reg(chip, offset, GPLR);
+
+	return readl(gplr) & BIT(offset % 32);
+}
+
+static void lnw_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+	void __iomem *gpsr, *gpcr;
+
+	if (value) {
+		gpsr = gpio_reg(chip, offset, GPSR);
+		writel(BIT(offset % 32), gpsr);
+	} else {
+		gpcr = gpio_reg(chip, offset, GPCR);
+		writel(BIT(offset % 32), gpcr);
+	}
+}
+
+static int lnw_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
+{
+	struct lnw_gpio *lnw = to_lnw_priv(chip);
+	void __iomem *gpdr = gpio_reg(chip, offset, GPDR);
+	u32 value;
+	unsigned long flags;
+
+	if (lnw->pdev)
+		pm_runtime_get(&lnw->pdev->dev);
+
+	spin_lock_irqsave(&lnw->lock, flags);
+	value = readl(gpdr);
+	value &= ~BIT(offset % 32);
+	writel(value, gpdr);
+	spin_unlock_irqrestore(&lnw->lock, flags);
+
+	if (lnw->pdev)
+		pm_runtime_put(&lnw->pdev->dev);
+
+	return 0;
+}
+
+static int lnw_gpio_direction_output(struct gpio_chip *chip,
+			unsigned offset, int value)
+{
+	struct lnw_gpio *lnw = to_lnw_priv(chip);
+	void __iomem *gpdr = gpio_reg(chip, offset, GPDR);
+	unsigned long flags;
+
+	lnw_gpio_set(chip, offset, value);
+
+	if (lnw->pdev)
+		pm_runtime_get(&lnw->pdev->dev);
+
+	spin_lock_irqsave(&lnw->lock, flags);
+	value = readl(gpdr);
+	value |= BIT(offset % 32);
+	writel(value, gpdr);
+	spin_unlock_irqrestore(&lnw->lock, flags);
+
+	if (lnw->pdev)
+		pm_runtime_put(&lnw->pdev->dev);
+
+	return 0;
+}
+
+static int lnw_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+	struct lnw_gpio *lnw = to_lnw_priv(chip);
+	return irq_create_mapping(lnw->domain, offset);
+}
+
+static int lnw_irq_type(struct irq_data *d, unsigned type)
+{
+	struct lnw_gpio *lnw = irq_data_get_irq_chip_data(d);
+	u32 gpio = irqd_to_hwirq(d);
+	unsigned long flags;
+	u32 value;
+	void __iomem *grer = gpio_reg(&lnw->chip, gpio, GRER);
+	void __iomem *gfer = gpio_reg(&lnw->chip, gpio, GFER);
+
+	if (gpio >= lnw->chip.ngpio)
+		return -EINVAL;
+
+	if (lnw->pdev)
+		pm_runtime_get(&lnw->pdev->dev);
+
+	spin_lock_irqsave(&lnw->lock, flags);
+	if (type & IRQ_TYPE_EDGE_RISING)
+		value = readl(grer) | BIT(gpio % 32);
+	else
+		value = readl(grer) & (~BIT(gpio % 32));
+	writel(value, grer);
+
+	if (type & IRQ_TYPE_EDGE_FALLING)
+		value = readl(gfer) | BIT(gpio % 32);
+	else
+		value = readl(gfer) & (~BIT(gpio % 32));
+	writel(value, gfer);
+	spin_unlock_irqrestore(&lnw->lock, flags);
+
+	if (lnw->pdev)
+		pm_runtime_put(&lnw->pdev->dev);
+
+	return 0;
+}
+
+static void lnw_irq_unmask(struct irq_data *d)
+{
+}
+
+static void lnw_irq_mask(struct irq_data *d)
+{
+}
+
+static struct irq_chip lnw_irqchip = {
+	.name		= "LNW-GPIO",
+	.irq_mask	= lnw_irq_mask,
+	.irq_unmask	= lnw_irq_unmask,
+	.irq_set_type	= lnw_irq_type,
+};
+
+static const struct lnw_gpio_ddata gpio_lincroft = {
+	.ngpio = 64,
+};
+
+static const struct lnw_gpio_ddata gpio_penwell_aon = {
+	.ngpio = 96,
+	.chip_irq_type = LNW_IRQ_TYPE_EDGE,
+};
+
+static const struct lnw_gpio_ddata gpio_penwell_core = {
+	.ngpio = 96,
+	.chip_irq_type = LNW_IRQ_TYPE_EDGE,
+};
+
+static const struct lnw_gpio_ddata gpio_cloverview_aon = {
+	.ngpio = 96,
+	.chip_irq_type = LNW_IRQ_TYPE_EDGE | LNW_IRQ_TYPE_LEVEL,
+};
+
+static const struct lnw_gpio_ddata gpio_cloverview_core = {
+	.ngpio = 96,
+	.chip_irq_type = LNW_IRQ_TYPE_EDGE,
+};
+
+static const struct lnw_gpio_ddata gpio_tangier = {
+	.ngpio = 192,
+	.gplr_offset = 4,
+	.flis_base = 0xff0c0000,
+	.flis_len = 0x8000,
+	.get_flis_offset = NULL,
+	.chip_irq_type = LNW_IRQ_TYPE_EDGE,
+};
+
+static DEFINE_PCI_DEVICE_TABLE(lnw_gpio_ids) = {
+	{
+		/* Lincroft */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x080f),
+		.driver_data = (kernel_ulong_t)&gpio_lincroft,
+	},
+	{
+		/* Penwell AON */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x081f),
+		.driver_data = (kernel_ulong_t)&gpio_penwell_aon,
+	},
+	{
+		/* Penwell Core */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x081a),
+		.driver_data = (kernel_ulong_t)&gpio_penwell_core,
+	},
+	{
+		/* Cloverview Aon */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x08eb),
+		.driver_data = (kernel_ulong_t)&gpio_cloverview_aon,
+	},
+	{
+		/* Cloverview Core */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x08f7),
+		.driver_data = (kernel_ulong_t)&gpio_cloverview_core,
+	},
+	{
+		/* Tangier */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x1199),
+		.driver_data = (kernel_ulong_t)&gpio_tangier,
+	},
+	{ 0 }
+};
+MODULE_DEVICE_TABLE(pci, lnw_gpio_ids);
+
+static void lnw_irq_handler(unsigned irq, struct irq_desc *desc)
+{
+	struct irq_data *data = irq_desc_get_irq_data(desc);
+	struct lnw_gpio *lnw = irq_data_get_irq_handler_data(data);
+	struct irq_chip *chip = irq_data_get_irq_chip(data);
+	u32 base, gpio, mask;
+	unsigned long pending;
+	void __iomem *gedr;
+
+	/* check GPIO controller to check which pin triggered the interrupt */
+	for (base = 0; base < lnw->chip.ngpio; base += 32) {
+		gedr = gpio_reg(&lnw->chip, base, GEDR);
+		while ((pending = readl(gedr))) {
+			gpio = __ffs(pending);
+			mask = BIT(gpio);
+			/* Clear before handling so we can't lose an edge */
+			writel(mask, gedr);
+			generic_handle_irq(irq_find_mapping(lnw->domain,
+							    base + gpio));
+		}
+	}
+
+	chip->irq_eoi(data);
+}
+
+static void lnw_irq_init_hw(struct lnw_gpio *lnw)
+{
+	void __iomem *reg;
+	unsigned base;
+
+	for (base = 0; base < lnw->chip.ngpio; base += 32) {
+		/* Clear the rising-edge detect register */
+		reg = gpio_reg(&lnw->chip, base, GRER);
+		writel(0, reg);
+		/* Clear the falling-edge detect register */
+		reg = gpio_reg(&lnw->chip, base, GFER);
+		writel(0, reg);
+		/* Clear the edge detect status register */
+		reg = gpio_reg(&lnw->chip, base, GEDR);
+		writel(~0, reg);
+	}
+}
+
+static int lnw_gpio_irq_map(struct irq_domain *d, unsigned int virq,
+			    irq_hw_number_t hw)
+{
+	struct lnw_gpio *lnw = d->host_data;
+
+	irq_set_chip_and_handler_name(virq, &lnw_irqchip, handle_simple_irq,
+				      "demux");
+	irq_set_chip_data(virq, lnw);
+	irq_set_irq_type(virq, IRQ_TYPE_NONE);
+
+	return 0;
+}
+
+static const struct irq_domain_ops lnw_gpio_irq_ops = {
+	.map = lnw_gpio_irq_map,
+	.xlate = irq_domain_xlate_twocell,
+};
+
+static int lnw_gpio_runtime_idle(struct device *dev)
+{
+	pm_schedule_suspend(dev, 500);
+	return -EBUSY;
+}
+
+static const struct dev_pm_ops lnw_gpio_pm_ops = {
+	SET_RUNTIME_PM_OPS(NULL, NULL, lnw_gpio_runtime_idle)
+};
+
+static int lnw_gpio_probe(struct pci_dev *pdev,
+			  const struct pci_device_id *id)
+{
+	void __iomem *base;
+	struct lnw_gpio *lnw;
+	u32 gpio_base;
+	u32 irq_base;
+	int retval;
+	struct lnw_gpio_ddata *ddata = (struct lnw_gpio_ddata *)id->driver_data;
+
+	retval = pcim_enable_device(pdev);
+	if (retval)
+		return retval;
+
+	retval = pcim_iomap_regions(pdev, 1 << 0 | 1 << 1, pci_name(pdev));
+	if (retval) {
+		dev_err(&pdev->dev, "I/O memory mapping error\n");
+		return retval;
+	}
+
+	base = pcim_iomap_table(pdev)[1];
+
+	irq_base = readl(base);
+	gpio_base = readl(sizeof(u32) + base);
+
+	/* release the IO mapping, since we already get the info from bar1 */
+	pcim_iounmap_regions(pdev, 1 << 1);
+
+	lnw = devm_kzalloc(&pdev->dev, sizeof(*lnw), GFP_KERNEL);
+	if (!lnw) {
+		dev_err(&pdev->dev, "can't allocate chip data\n");
+		return -ENOMEM;
+	}
+
+	lnw->reg_base = pcim_iomap_table(pdev)[0];
+	lnw->chip.label = dev_name(&pdev->dev);
+	lnw->chip.request = lnw_gpio_request;
+	lnw->chip.direction_input = lnw_gpio_direction_input;
+	lnw->chip.direction_output = lnw_gpio_direction_output;
+	lnw->chip.get = lnw_gpio_get;
+	lnw->chip.set = lnw_gpio_set;
+	lnw->chip.to_irq = lnw_gpio_to_irq;
+	lnw->chip.base = gpio_base;
+	lnw->chip.ngpio = ddata->ngpio;
+	lnw->chip.can_sleep = 0;
+	lnw->pdev = pdev;
+
+	spin_lock_init(&lnw->lock);
+
+	lnw->domain = irq_domain_add_simple(pdev->dev.of_node, ddata->ngpio,
+					    irq_base, &lnw_gpio_irq_ops, lnw);
+	if (!lnw->domain)
+		return -ENOMEM;
+
+	pci_set_drvdata(pdev, lnw);
+	retval = gpiochip_add(&lnw->chip);
+	if (retval) {
+		dev_err(&pdev->dev, "gpiochip_add error %d\n", retval);
+		return retval;
+	}
+
+	lnw_irq_init_hw(lnw);
+
+	irq_set_handler_data(pdev->irq, lnw);
+	irq_set_chained_handler(pdev->irq, lnw_irq_handler);
+
+	pm_runtime_put_noidle(&pdev->dev);
+	pm_runtime_allow(&pdev->dev);
+
+	return 0;
+}
+
+static struct pci_driver lnw_gpio_driver = {
+	.name		= "langwell_gpio",
+	.id_table	= lnw_gpio_ids,
+	.probe		= lnw_gpio_probe,
+	.driver		= {
+		.pm	= &lnw_gpio_pm_ops,
+	},
+};
+
+static int __init lnw_gpio_init(void)
+{
+	return pci_register_driver(&lnw_gpio_driver);
+}
+
+device_initcall(lnw_gpio_init);
diff --git a/drivers/gpio/gpio-langwell.c b/drivers/gpio/gpio-langwell.c
deleted file mode 100644
index bf3b9597abd8..000000000000
--- a/drivers/gpio/gpio-langwell.c
+++ /dev/null
@@ -1,468 +0,0 @@
-/*
- * Moorestown platform Langwell chip GPIO driver
- *
- * Copyright (c) 2008, 2009, 2013, Intel Corporation.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-/* Supports:
- * Moorestown platform Langwell chip.
- * Medfield platform Penwell chip.
- */
-
-#include <linux/module.h>
-#include <linux/pci.h>
-#include <linux/platform_device.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/stddef.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/io.h>
-#include <linux/gpio.h>
-#include <linux/slab.h>
-#include <linux/pm_runtime.h>
-#include <linux/irqdomain.h>
-
-#define LNW_IRQ_TYPE_EDGE	(1 << 0)
-#define LNW_IRQ_TYPE_LEVEL	(1 << 1)
-
-/*
- * Langwell chip has 64 pins and thus there are 2 32bit registers to control
- * each feature, while Penwell chip has 96 pins for each block, and need 3 32bit
- * registers to control them, so we only define the order here instead of a
- * structure, to get a bit offset for a pin (use GPDR as an example):
- *
- * nreg = ngpio / 32;
- * reg = offset / 32;
- * bit = offset % 32;
- * reg_addr = reg_base + GPDR * nreg * 4 + reg * 4;
- *
- * so the bit of reg_addr is to control pin offset's GPDR feature
-*/
-
-enum GPIO_REG {
-	GPLR = 0,	/* pin level read-only */
-	GPDR,		/* pin direction */
-	GPSR,		/* pin set */
-	GPCR,		/* pin clear */
-	GRER,		/* rising edge detect */
-	GFER,		/* falling edge detect */
-	GEDR,		/* edge detect result */
-	GAFR,		/* alt function */
-};
-
-/* langwell gpio driver data */
-struct lnw_gpio_ddata {
-	u16 ngpio;		/* number of gpio pins */
-	u32 gplr_offset;	/* offset of first GPLR register from base */
-	u32 flis_base;		/* base address of FLIS registers */
-	u32 flis_len;		/* length of FLIS registers */
-	u32 (*get_flis_offset)(int gpio);
-	u32 chip_irq_type;	/* chip interrupt type */
-};
-
-struct lnw_gpio {
-	struct gpio_chip		chip;
-	void __iomem			*reg_base;
-	spinlock_t			lock;
-	struct pci_dev			*pdev;
-	struct irq_domain		*domain;
-};
-
-#define to_lnw_priv(chip)	container_of(chip, struct lnw_gpio, chip)
-
-static void __iomem *gpio_reg(struct gpio_chip *chip, unsigned offset,
-			      enum GPIO_REG reg_type)
-{
-	struct lnw_gpio *lnw = to_lnw_priv(chip);
-	unsigned nreg = chip->ngpio / 32;
-	u8 reg = offset / 32;
-
-	return lnw->reg_base + reg_type * nreg * 4 + reg * 4;
-}
-
-static void __iomem *gpio_reg_2bit(struct gpio_chip *chip, unsigned offset,
-				   enum GPIO_REG reg_type)
-{
-	struct lnw_gpio *lnw = to_lnw_priv(chip);
-	unsigned nreg = chip->ngpio / 32;
-	u8 reg = offset / 16;
-
-	return lnw->reg_base + reg_type * nreg * 4 + reg * 4;
-}
-
-static int lnw_gpio_request(struct gpio_chip *chip, unsigned offset)
-{
-	void __iomem *gafr = gpio_reg_2bit(chip, offset, GAFR);
-	u32 value = readl(gafr);
-	int shift = (offset % 16) << 1, af = (value >> shift) & 3;
-
-	if (af) {
-		value &= ~(3 << shift);
-		writel(value, gafr);
-	}
-	return 0;
-}
-
-static int lnw_gpio_get(struct gpio_chip *chip, unsigned offset)
-{
-	void __iomem *gplr = gpio_reg(chip, offset, GPLR);
-
-	return readl(gplr) & BIT(offset % 32);
-}
-
-static void lnw_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
-{
-	void __iomem *gpsr, *gpcr;
-
-	if (value) {
-		gpsr = gpio_reg(chip, offset, GPSR);
-		writel(BIT(offset % 32), gpsr);
-	} else {
-		gpcr = gpio_reg(chip, offset, GPCR);
-		writel(BIT(offset % 32), gpcr);
-	}
-}
-
-static int lnw_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
-{
-	struct lnw_gpio *lnw = to_lnw_priv(chip);
-	void __iomem *gpdr = gpio_reg(chip, offset, GPDR);
-	u32 value;
-	unsigned long flags;
-
-	if (lnw->pdev)
-		pm_runtime_get(&lnw->pdev->dev);
-
-	spin_lock_irqsave(&lnw->lock, flags);
-	value = readl(gpdr);
-	value &= ~BIT(offset % 32);
-	writel(value, gpdr);
-	spin_unlock_irqrestore(&lnw->lock, flags);
-
-	if (lnw->pdev)
-		pm_runtime_put(&lnw->pdev->dev);
-
-	return 0;
-}
-
-static int lnw_gpio_direction_output(struct gpio_chip *chip,
-			unsigned offset, int value)
-{
-	struct lnw_gpio *lnw = to_lnw_priv(chip);
-	void __iomem *gpdr = gpio_reg(chip, offset, GPDR);
-	unsigned long flags;
-
-	lnw_gpio_set(chip, offset, value);
-
-	if (lnw->pdev)
-		pm_runtime_get(&lnw->pdev->dev);
-
-	spin_lock_irqsave(&lnw->lock, flags);
-	value = readl(gpdr);
-	value |= BIT(offset % 32);
-	writel(value, gpdr);
-	spin_unlock_irqrestore(&lnw->lock, flags);
-
-	if (lnw->pdev)
-		pm_runtime_put(&lnw->pdev->dev);
-
-	return 0;
-}
-
-static int lnw_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
-{
-	struct lnw_gpio *lnw = to_lnw_priv(chip);
-	return irq_create_mapping(lnw->domain, offset);
-}
-
-static int lnw_irq_type(struct irq_data *d, unsigned type)
-{
-	struct lnw_gpio *lnw = irq_data_get_irq_chip_data(d);
-	u32 gpio = irqd_to_hwirq(d);
-	unsigned long flags;
-	u32 value;
-	void __iomem *grer = gpio_reg(&lnw->chip, gpio, GRER);
-	void __iomem *gfer = gpio_reg(&lnw->chip, gpio, GFER);
-
-	if (gpio >= lnw->chip.ngpio)
-		return -EINVAL;
-
-	if (lnw->pdev)
-		pm_runtime_get(&lnw->pdev->dev);
-
-	spin_lock_irqsave(&lnw->lock, flags);
-	if (type & IRQ_TYPE_EDGE_RISING)
-		value = readl(grer) | BIT(gpio % 32);
-	else
-		value = readl(grer) & (~BIT(gpio % 32));
-	writel(value, grer);
-
-	if (type & IRQ_TYPE_EDGE_FALLING)
-		value = readl(gfer) | BIT(gpio % 32);
-	else
-		value = readl(gfer) & (~BIT(gpio % 32));
-	writel(value, gfer);
-	spin_unlock_irqrestore(&lnw->lock, flags);
-
-	if (lnw->pdev)
-		pm_runtime_put(&lnw->pdev->dev);
-
-	return 0;
-}
-
-static void lnw_irq_unmask(struct irq_data *d)
-{
-}
-
-static void lnw_irq_mask(struct irq_data *d)
-{
-}
-
-static struct irq_chip lnw_irqchip = {
-	.name		= "LNW-GPIO",
-	.irq_mask	= lnw_irq_mask,
-	.irq_unmask	= lnw_irq_unmask,
-	.irq_set_type	= lnw_irq_type,
-};
-
-static const struct lnw_gpio_ddata gpio_lincroft = {
-	.ngpio = 64,
-};
-
-static const struct lnw_gpio_ddata gpio_penwell_aon = {
-	.ngpio = 96,
-	.chip_irq_type = LNW_IRQ_TYPE_EDGE,
-};
-
-static const struct lnw_gpio_ddata gpio_penwell_core = {
-	.ngpio = 96,
-	.chip_irq_type = LNW_IRQ_TYPE_EDGE,
-};
-
-static const struct lnw_gpio_ddata gpio_cloverview_aon = {
-	.ngpio = 96,
-	.chip_irq_type = LNW_IRQ_TYPE_EDGE | LNW_IRQ_TYPE_LEVEL,
-};
-
-static const struct lnw_gpio_ddata gpio_cloverview_core = {
-	.ngpio = 96,
-	.chip_irq_type = LNW_IRQ_TYPE_EDGE,
-};
-
-static const struct lnw_gpio_ddata gpio_tangier = {
-	.ngpio = 192,
-	.gplr_offset = 4,
-	.flis_base = 0xff0c0000,
-	.flis_len = 0x8000,
-	.get_flis_offset = NULL,
-	.chip_irq_type = LNW_IRQ_TYPE_EDGE,
-};
-
-static DEFINE_PCI_DEVICE_TABLE(lnw_gpio_ids) = {
-	{
-		/* Lincroft */
-		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x080f),
-		.driver_data = (kernel_ulong_t)&gpio_lincroft,
-	},
-	{
-		/* Penwell AON */
-		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x081f),
-		.driver_data = (kernel_ulong_t)&gpio_penwell_aon,
-	},
-	{
-		/* Penwell Core */
-		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x081a),
-		.driver_data = (kernel_ulong_t)&gpio_penwell_core,
-	},
-	{
-		/* Cloverview Aon */
-		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x08eb),
-		.driver_data = (kernel_ulong_t)&gpio_cloverview_aon,
-	},
-	{
-		/* Cloverview Core */
-		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x08f7),
-		.driver_data = (kernel_ulong_t)&gpio_cloverview_core,
-	},
-	{
-		/* Tangier */
-		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x1199),
-		.driver_data = (kernel_ulong_t)&gpio_tangier,
-	},
-	{ 0 }
-};
-MODULE_DEVICE_TABLE(pci, lnw_gpio_ids);
-
-static void lnw_irq_handler(unsigned irq, struct irq_desc *desc)
-{
-	struct irq_data *data = irq_desc_get_irq_data(desc);
-	struct lnw_gpio *lnw = irq_data_get_irq_handler_data(data);
-	struct irq_chip *chip = irq_data_get_irq_chip(data);
-	u32 base, gpio, mask;
-	unsigned long pending;
-	void __iomem *gedr;
-
-	/* check GPIO controller to check which pin triggered the interrupt */
-	for (base = 0; base < lnw->chip.ngpio; base += 32) {
-		gedr = gpio_reg(&lnw->chip, base, GEDR);
-		while ((pending = readl(gedr))) {
-			gpio = __ffs(pending);
-			mask = BIT(gpio);
-			/* Clear before handling so we can't lose an edge */
-			writel(mask, gedr);
-			generic_handle_irq(irq_find_mapping(lnw->domain,
-							    base + gpio));
-		}
-	}
-
-	chip->irq_eoi(data);
-}
-
-static void lnw_irq_init_hw(struct lnw_gpio *lnw)
-{
-	void __iomem *reg;
-	unsigned base;
-
-	for (base = 0; base < lnw->chip.ngpio; base += 32) {
-		/* Clear the rising-edge detect register */
-		reg = gpio_reg(&lnw->chip, base, GRER);
-		writel(0, reg);
-		/* Clear the falling-edge detect register */
-		reg = gpio_reg(&lnw->chip, base, GFER);
-		writel(0, reg);
-		/* Clear the edge detect status register */
-		reg = gpio_reg(&lnw->chip, base, GEDR);
-		writel(~0, reg);
-	}
-}
-
-static int lnw_gpio_irq_map(struct irq_domain *d, unsigned int virq,
-			    irq_hw_number_t hw)
-{
-	struct lnw_gpio *lnw = d->host_data;
-
-	irq_set_chip_and_handler_name(virq, &lnw_irqchip, handle_simple_irq,
-				      "demux");
-	irq_set_chip_data(virq, lnw);
-	irq_set_irq_type(virq, IRQ_TYPE_NONE);
-
-	return 0;
-}
-
-static const struct irq_domain_ops lnw_gpio_irq_ops = {
-	.map = lnw_gpio_irq_map,
-	.xlate = irq_domain_xlate_twocell,
-};
-
-static int lnw_gpio_runtime_idle(struct device *dev)
-{
-	pm_schedule_suspend(dev, 500);
-	return -EBUSY;
-}
-
-static const struct dev_pm_ops lnw_gpio_pm_ops = {
-	SET_RUNTIME_PM_OPS(NULL, NULL, lnw_gpio_runtime_idle)
-};
-
-static int lnw_gpio_probe(struct pci_dev *pdev,
-			  const struct pci_device_id *id)
-{
-	void __iomem *base;
-	struct lnw_gpio *lnw;
-	u32 gpio_base;
-	u32 irq_base;
-	int retval;
-	struct lnw_gpio_ddata *ddata = (struct lnw_gpio_ddata *)id->driver_data;
-
-	retval = pcim_enable_device(pdev);
-	if (retval)
-		return retval;
-
-	retval = pcim_iomap_regions(pdev, 1 << 0 | 1 << 1, pci_name(pdev));
-	if (retval) {
-		dev_err(&pdev->dev, "I/O memory mapping error\n");
-		return retval;
-	}
-
-	base = pcim_iomap_table(pdev)[1];
-
-	irq_base = readl(base);
-	gpio_base = readl(sizeof(u32) + base);
-
-	/* release the IO mapping, since we already get the info from bar1 */
-	pcim_iounmap_regions(pdev, 1 << 1);
-
-	lnw = devm_kzalloc(&pdev->dev, sizeof(*lnw), GFP_KERNEL);
-	if (!lnw) {
-		dev_err(&pdev->dev, "can't allocate chip data\n");
-		return -ENOMEM;
-	}
-
-	lnw->reg_base = pcim_iomap_table(pdev)[0];
-	lnw->chip.label = dev_name(&pdev->dev);
-	lnw->chip.request = lnw_gpio_request;
-	lnw->chip.direction_input = lnw_gpio_direction_input;
-	lnw->chip.direction_output = lnw_gpio_direction_output;
-	lnw->chip.get = lnw_gpio_get;
-	lnw->chip.set = lnw_gpio_set;
-	lnw->chip.to_irq = lnw_gpio_to_irq;
-	lnw->chip.base = gpio_base;
-	lnw->chip.ngpio = ddata->ngpio;
-	lnw->chip.can_sleep = 0;
-	lnw->pdev = pdev;
-
-	spin_lock_init(&lnw->lock);
-
-	lnw->domain = irq_domain_add_simple(pdev->dev.of_node, ddata->ngpio,
-					    irq_base, &lnw_gpio_irq_ops, lnw);
-	if (!lnw->domain)
-		return -ENOMEM;
-
-	pci_set_drvdata(pdev, lnw);
-	retval = gpiochip_add(&lnw->chip);
-	if (retval) {
-		dev_err(&pdev->dev, "gpiochip_add error %d\n", retval);
-		return retval;
-	}
-
-	lnw_irq_init_hw(lnw);
-
-	irq_set_handler_data(pdev->irq, lnw);
-	irq_set_chained_handler(pdev->irq, lnw_irq_handler);
-
-	pm_runtime_put_noidle(&pdev->dev);
-	pm_runtime_allow(&pdev->dev);
-
-	return 0;
-}
-
-static struct pci_driver lnw_gpio_driver = {
-	.name		= "langwell_gpio",
-	.id_table	= lnw_gpio_ids,
-	.probe		= lnw_gpio_probe,
-	.driver		= {
-		.pm	= &lnw_gpio_pm_ops,
-	},
-};
-
-static int __init lnw_gpio_init(void)
-{
-	return pci_register_driver(&lnw_gpio_driver);
-}
-
-device_initcall(lnw_gpio_init);
-- 
cgit 


From f89a768f1c1dd1e4e8ea69c7b01344ff9fdb8fb5 Mon Sep 17 00:00:00 2001
From: David Cohen <david.a.cohen@linux.intel.com>
Date: Fri, 4 Oct 2013 13:01:42 -0700
Subject: gpio-intel-mid: update prefixes and names from langwell to intel-mid

After file was renamed from gpio-langwell to gpio-intel-mid, this patch
updates the variables, functions and structs to be based on intel-mid
instead of langwell.

There is no function change.

Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-intel-mid.c | 243 +++++++++++++++++++++---------------------
 1 file changed, 123 insertions(+), 120 deletions(-)

diff --git a/drivers/gpio/gpio-intel-mid.c b/drivers/gpio/gpio-intel-mid.c
index bf3b9597abd8..612b54d3a3bf 100644
--- a/drivers/gpio/gpio-intel-mid.c
+++ b/drivers/gpio/gpio-intel-mid.c
@@ -20,6 +20,8 @@
 /* Supports:
  * Moorestown platform Langwell chip.
  * Medfield platform Penwell chip.
+ * Clovertrail platform Cloverview chip.
+ * Merrifield platform Tangier chip.
  */
 
 #include <linux/module.h>
@@ -37,8 +39,8 @@
 #include <linux/pm_runtime.h>
 #include <linux/irqdomain.h>
 
-#define LNW_IRQ_TYPE_EDGE	(1 << 0)
-#define LNW_IRQ_TYPE_LEVEL	(1 << 1)
+#define INTEL_MID_IRQ_TYPE_EDGE		(1 << 0)
+#define INTEL_MID_IRQ_TYPE_LEVEL	(1 << 1)
 
 /*
  * Langwell chip has 64 pins and thus there are 2 32bit registers to control
@@ -65,8 +67,8 @@ enum GPIO_REG {
 	GAFR,		/* alt function */
 };
 
-/* langwell gpio driver data */
-struct lnw_gpio_ddata {
+/* intel_mid gpio driver data */
+struct intel_mid_gpio_ddata {
 	u16 ngpio;		/* number of gpio pins */
 	u32 gplr_offset;	/* offset of first GPLR register from base */
 	u32 flis_base;		/* base address of FLIS registers */
@@ -75,7 +77,7 @@ struct lnw_gpio_ddata {
 	u32 chip_irq_type;	/* chip interrupt type */
 };
 
-struct lnw_gpio {
+struct intel_mid_gpio {
 	struct gpio_chip		chip;
 	void __iomem			*reg_base;
 	spinlock_t			lock;
@@ -83,29 +85,29 @@ struct lnw_gpio {
 	struct irq_domain		*domain;
 };
 
-#define to_lnw_priv(chip)	container_of(chip, struct lnw_gpio, chip)
+#define to_intel_gpio_priv(chip) container_of(chip, struct intel_mid_gpio, chip)
 
 static void __iomem *gpio_reg(struct gpio_chip *chip, unsigned offset,
 			      enum GPIO_REG reg_type)
 {
-	struct lnw_gpio *lnw = to_lnw_priv(chip);
+	struct intel_mid_gpio *priv = to_intel_gpio_priv(chip);
 	unsigned nreg = chip->ngpio / 32;
 	u8 reg = offset / 32;
 
-	return lnw->reg_base + reg_type * nreg * 4 + reg * 4;
+	return priv->reg_base + reg_type * nreg * 4 + reg * 4;
 }
 
 static void __iomem *gpio_reg_2bit(struct gpio_chip *chip, unsigned offset,
 				   enum GPIO_REG reg_type)
 {
-	struct lnw_gpio *lnw = to_lnw_priv(chip);
+	struct intel_mid_gpio *priv = to_intel_gpio_priv(chip);
 	unsigned nreg = chip->ngpio / 32;
 	u8 reg = offset / 16;
 
-	return lnw->reg_base + reg_type * nreg * 4 + reg * 4;
+	return priv->reg_base + reg_type * nreg * 4 + reg * 4;
 }
 
-static int lnw_gpio_request(struct gpio_chip *chip, unsigned offset)
+static int intel_gpio_request(struct gpio_chip *chip, unsigned offset)
 {
 	void __iomem *gafr = gpio_reg_2bit(chip, offset, GAFR);
 	u32 value = readl(gafr);
@@ -118,14 +120,14 @@ static int lnw_gpio_request(struct gpio_chip *chip, unsigned offset)
 	return 0;
 }
 
-static int lnw_gpio_get(struct gpio_chip *chip, unsigned offset)
+static int intel_gpio_get(struct gpio_chip *chip, unsigned offset)
 {
 	void __iomem *gplr = gpio_reg(chip, offset, GPLR);
 
 	return readl(gplr) & BIT(offset % 32);
 }
 
-static void lnw_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+static void intel_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 {
 	void __iomem *gpsr, *gpcr;
 
@@ -138,74 +140,74 @@ static void lnw_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 	}
 }
 
-static int lnw_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
+static int intel_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
 {
-	struct lnw_gpio *lnw = to_lnw_priv(chip);
+	struct intel_mid_gpio *priv = to_intel_gpio_priv(chip);
 	void __iomem *gpdr = gpio_reg(chip, offset, GPDR);
 	u32 value;
 	unsigned long flags;
 
-	if (lnw->pdev)
-		pm_runtime_get(&lnw->pdev->dev);
+	if (priv->pdev)
+		pm_runtime_get(&priv->pdev->dev);
 
-	spin_lock_irqsave(&lnw->lock, flags);
+	spin_lock_irqsave(&priv->lock, flags);
 	value = readl(gpdr);
 	value &= ~BIT(offset % 32);
 	writel(value, gpdr);
-	spin_unlock_irqrestore(&lnw->lock, flags);
+	spin_unlock_irqrestore(&priv->lock, flags);
 
-	if (lnw->pdev)
-		pm_runtime_put(&lnw->pdev->dev);
+	if (priv->pdev)
+		pm_runtime_put(&priv->pdev->dev);
 
 	return 0;
 }
 
-static int lnw_gpio_direction_output(struct gpio_chip *chip,
+static int intel_gpio_direction_output(struct gpio_chip *chip,
 			unsigned offset, int value)
 {
-	struct lnw_gpio *lnw = to_lnw_priv(chip);
+	struct intel_mid_gpio *priv = to_intel_gpio_priv(chip);
 	void __iomem *gpdr = gpio_reg(chip, offset, GPDR);
 	unsigned long flags;
 
-	lnw_gpio_set(chip, offset, value);
+	intel_gpio_set(chip, offset, value);
 
-	if (lnw->pdev)
-		pm_runtime_get(&lnw->pdev->dev);
+	if (priv->pdev)
+		pm_runtime_get(&priv->pdev->dev);
 
-	spin_lock_irqsave(&lnw->lock, flags);
+	spin_lock_irqsave(&priv->lock, flags);
 	value = readl(gpdr);
 	value |= BIT(offset % 32);
 	writel(value, gpdr);
-	spin_unlock_irqrestore(&lnw->lock, flags);
+	spin_unlock_irqrestore(&priv->lock, flags);
 
-	if (lnw->pdev)
-		pm_runtime_put(&lnw->pdev->dev);
+	if (priv->pdev)
+		pm_runtime_put(&priv->pdev->dev);
 
 	return 0;
 }
 
-static int lnw_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+static int intel_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
 {
-	struct lnw_gpio *lnw = to_lnw_priv(chip);
-	return irq_create_mapping(lnw->domain, offset);
+	struct intel_mid_gpio *priv = to_intel_gpio_priv(chip);
+	return irq_create_mapping(priv->domain, offset);
 }
 
-static int lnw_irq_type(struct irq_data *d, unsigned type)
+static int intel_mid_irq_type(struct irq_data *d, unsigned type)
 {
-	struct lnw_gpio *lnw = irq_data_get_irq_chip_data(d);
+	struct intel_mid_gpio *priv = irq_data_get_irq_chip_data(d);
 	u32 gpio = irqd_to_hwirq(d);
 	unsigned long flags;
 	u32 value;
-	void __iomem *grer = gpio_reg(&lnw->chip, gpio, GRER);
-	void __iomem *gfer = gpio_reg(&lnw->chip, gpio, GFER);
+	void __iomem *grer = gpio_reg(&priv->chip, gpio, GRER);
+	void __iomem *gfer = gpio_reg(&priv->chip, gpio, GFER);
 
-	if (gpio >= lnw->chip.ngpio)
+	if (gpio >= priv->chip.ngpio)
 		return -EINVAL;
 
-	if (lnw->pdev)
-		pm_runtime_get(&lnw->pdev->dev);
+	if (priv->pdev)
+		pm_runtime_get(&priv->pdev->dev);
 
-	spin_lock_irqsave(&lnw->lock, flags);
+	spin_lock_irqsave(&priv->lock, flags);
 	if (type & IRQ_TYPE_EDGE_RISING)
 		value = readl(grer) | BIT(gpio % 32);
 	else
@@ -217,63 +219,63 @@ static int lnw_irq_type(struct irq_data *d, unsigned type)
 	else
 		value = readl(gfer) & (~BIT(gpio % 32));
 	writel(value, gfer);
-	spin_unlock_irqrestore(&lnw->lock, flags);
+	spin_unlock_irqrestore(&priv->lock, flags);
 
-	if (lnw->pdev)
-		pm_runtime_put(&lnw->pdev->dev);
+	if (priv->pdev)
+		pm_runtime_put(&priv->pdev->dev);
 
 	return 0;
 }
 
-static void lnw_irq_unmask(struct irq_data *d)
+static void intel_mid_irq_unmask(struct irq_data *d)
 {
 }
 
-static void lnw_irq_mask(struct irq_data *d)
+static void intel_mid_irq_mask(struct irq_data *d)
 {
 }
 
-static struct irq_chip lnw_irqchip = {
-	.name		= "LNW-GPIO",
-	.irq_mask	= lnw_irq_mask,
-	.irq_unmask	= lnw_irq_unmask,
-	.irq_set_type	= lnw_irq_type,
+static struct irq_chip intel_mid_irqchip = {
+	.name		= "INTEL_MID-GPIO",
+	.irq_mask	= intel_mid_irq_mask,
+	.irq_unmask	= intel_mid_irq_unmask,
+	.irq_set_type	= intel_mid_irq_type,
 };
 
-static const struct lnw_gpio_ddata gpio_lincroft = {
+static const struct intel_mid_gpio_ddata gpio_lincroft = {
 	.ngpio = 64,
 };
 
-static const struct lnw_gpio_ddata gpio_penwell_aon = {
+static const struct intel_mid_gpio_ddata gpio_penwell_aon = {
 	.ngpio = 96,
-	.chip_irq_type = LNW_IRQ_TYPE_EDGE,
+	.chip_irq_type = INTEL_MID_IRQ_TYPE_EDGE,
 };
 
-static const struct lnw_gpio_ddata gpio_penwell_core = {
+static const struct intel_mid_gpio_ddata gpio_penwell_core = {
 	.ngpio = 96,
-	.chip_irq_type = LNW_IRQ_TYPE_EDGE,
+	.chip_irq_type = INTEL_MID_IRQ_TYPE_EDGE,
 };
 
-static const struct lnw_gpio_ddata gpio_cloverview_aon = {
+static const struct intel_mid_gpio_ddata gpio_cloverview_aon = {
 	.ngpio = 96,
-	.chip_irq_type = LNW_IRQ_TYPE_EDGE | LNW_IRQ_TYPE_LEVEL,
+	.chip_irq_type = INTEL_MID_IRQ_TYPE_EDGE | INTEL_MID_IRQ_TYPE_LEVEL,
 };
 
-static const struct lnw_gpio_ddata gpio_cloverview_core = {
+static const struct intel_mid_gpio_ddata gpio_cloverview_core = {
 	.ngpio = 96,
-	.chip_irq_type = LNW_IRQ_TYPE_EDGE,
+	.chip_irq_type = INTEL_MID_IRQ_TYPE_EDGE,
 };
 
-static const struct lnw_gpio_ddata gpio_tangier = {
+static const struct intel_mid_gpio_ddata gpio_tangier = {
 	.ngpio = 192,
 	.gplr_offset = 4,
 	.flis_base = 0xff0c0000,
 	.flis_len = 0x8000,
 	.get_flis_offset = NULL,
-	.chip_irq_type = LNW_IRQ_TYPE_EDGE,
+	.chip_irq_type = INTEL_MID_IRQ_TYPE_EDGE,
 };
 
-static DEFINE_PCI_DEVICE_TABLE(lnw_gpio_ids) = {
+static DEFINE_PCI_DEVICE_TABLE(intel_gpio_ids) = {
 	{
 		/* Lincroft */
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x080f),
@@ -306,26 +308,26 @@ static DEFINE_PCI_DEVICE_TABLE(lnw_gpio_ids) = {
 	},
 	{ 0 }
 };
-MODULE_DEVICE_TABLE(pci, lnw_gpio_ids);
+MODULE_DEVICE_TABLE(pci, intel_gpio_ids);
 
-static void lnw_irq_handler(unsigned irq, struct irq_desc *desc)
+static void intel_mid_irq_handler(unsigned irq, struct irq_desc *desc)
 {
 	struct irq_data *data = irq_desc_get_irq_data(desc);
-	struct lnw_gpio *lnw = irq_data_get_irq_handler_data(data);
+	struct intel_mid_gpio *priv = irq_data_get_irq_handler_data(data);
 	struct irq_chip *chip = irq_data_get_irq_chip(data);
 	u32 base, gpio, mask;
 	unsigned long pending;
 	void __iomem *gedr;
 
 	/* check GPIO controller to check which pin triggered the interrupt */
-	for (base = 0; base < lnw->chip.ngpio; base += 32) {
-		gedr = gpio_reg(&lnw->chip, base, GEDR);
+	for (base = 0; base < priv->chip.ngpio; base += 32) {
+		gedr = gpio_reg(&priv->chip, base, GEDR);
 		while ((pending = readl(gedr))) {
 			gpio = __ffs(pending);
 			mask = BIT(gpio);
 			/* Clear before handling so we can't lose an edge */
 			writel(mask, gedr);
-			generic_handle_irq(irq_find_mapping(lnw->domain,
+			generic_handle_irq(irq_find_mapping(priv->domain,
 							    base + gpio));
 		}
 	}
@@ -333,61 +335,62 @@ static void lnw_irq_handler(unsigned irq, struct irq_desc *desc)
 	chip->irq_eoi(data);
 }
 
-static void lnw_irq_init_hw(struct lnw_gpio *lnw)
+static void intel_mid_irq_init_hw(struct intel_mid_gpio *priv)
 {
 	void __iomem *reg;
 	unsigned base;
 
-	for (base = 0; base < lnw->chip.ngpio; base += 32) {
+	for (base = 0; base < priv->chip.ngpio; base += 32) {
 		/* Clear the rising-edge detect register */
-		reg = gpio_reg(&lnw->chip, base, GRER);
+		reg = gpio_reg(&priv->chip, base, GRER);
 		writel(0, reg);
 		/* Clear the falling-edge detect register */
-		reg = gpio_reg(&lnw->chip, base, GFER);
+		reg = gpio_reg(&priv->chip, base, GFER);
 		writel(0, reg);
 		/* Clear the edge detect status register */
-		reg = gpio_reg(&lnw->chip, base, GEDR);
+		reg = gpio_reg(&priv->chip, base, GEDR);
 		writel(~0, reg);
 	}
 }
 
-static int lnw_gpio_irq_map(struct irq_domain *d, unsigned int virq,
+static int intel_gpio_irq_map(struct irq_domain *d, unsigned int virq,
 			    irq_hw_number_t hw)
 {
-	struct lnw_gpio *lnw = d->host_data;
+	struct intel_mid_gpio *priv = d->host_data;
 
-	irq_set_chip_and_handler_name(virq, &lnw_irqchip, handle_simple_irq,
-				      "demux");
-	irq_set_chip_data(virq, lnw);
+	irq_set_chip_and_handler_name(virq, &intel_mid_irqchip,
+				      handle_simple_irq, "demux");
+	irq_set_chip_data(virq, priv);
 	irq_set_irq_type(virq, IRQ_TYPE_NONE);
 
 	return 0;
 }
 
-static const struct irq_domain_ops lnw_gpio_irq_ops = {
-	.map = lnw_gpio_irq_map,
+static const struct irq_domain_ops intel_gpio_irq_ops = {
+	.map = intel_gpio_irq_map,
 	.xlate = irq_domain_xlate_twocell,
 };
 
-static int lnw_gpio_runtime_idle(struct device *dev)
+static int intel_gpio_runtime_idle(struct device *dev)
 {
 	pm_schedule_suspend(dev, 500);
 	return -EBUSY;
 }
 
-static const struct dev_pm_ops lnw_gpio_pm_ops = {
-	SET_RUNTIME_PM_OPS(NULL, NULL, lnw_gpio_runtime_idle)
+static const struct dev_pm_ops intel_gpio_pm_ops = {
+	SET_RUNTIME_PM_OPS(NULL, NULL, intel_gpio_runtime_idle)
 };
 
-static int lnw_gpio_probe(struct pci_dev *pdev,
+static int intel_gpio_probe(struct pci_dev *pdev,
 			  const struct pci_device_id *id)
 {
 	void __iomem *base;
-	struct lnw_gpio *lnw;
+	struct intel_mid_gpio *priv;
 	u32 gpio_base;
 	u32 irq_base;
 	int retval;
-	struct lnw_gpio_ddata *ddata = (struct lnw_gpio_ddata *)id->driver_data;
+	struct intel_mid_gpio_ddata *ddata =
+				(struct intel_mid_gpio_ddata *)id->driver_data;
 
 	retval = pcim_enable_device(pdev);
 	if (retval)
@@ -407,43 +410,43 @@ static int lnw_gpio_probe(struct pci_dev *pdev,
 	/* release the IO mapping, since we already get the info from bar1 */
 	pcim_iounmap_regions(pdev, 1 << 1);
 
-	lnw = devm_kzalloc(&pdev->dev, sizeof(*lnw), GFP_KERNEL);
-	if (!lnw) {
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv) {
 		dev_err(&pdev->dev, "can't allocate chip data\n");
 		return -ENOMEM;
 	}
 
-	lnw->reg_base = pcim_iomap_table(pdev)[0];
-	lnw->chip.label = dev_name(&pdev->dev);
-	lnw->chip.request = lnw_gpio_request;
-	lnw->chip.direction_input = lnw_gpio_direction_input;
-	lnw->chip.direction_output = lnw_gpio_direction_output;
-	lnw->chip.get = lnw_gpio_get;
-	lnw->chip.set = lnw_gpio_set;
-	lnw->chip.to_irq = lnw_gpio_to_irq;
-	lnw->chip.base = gpio_base;
-	lnw->chip.ngpio = ddata->ngpio;
-	lnw->chip.can_sleep = 0;
-	lnw->pdev = pdev;
-
-	spin_lock_init(&lnw->lock);
-
-	lnw->domain = irq_domain_add_simple(pdev->dev.of_node, ddata->ngpio,
-					    irq_base, &lnw_gpio_irq_ops, lnw);
-	if (!lnw->domain)
+	priv->reg_base = pcim_iomap_table(pdev)[0];
+	priv->chip.label = dev_name(&pdev->dev);
+	priv->chip.request = intel_gpio_request;
+	priv->chip.direction_input = intel_gpio_direction_input;
+	priv->chip.direction_output = intel_gpio_direction_output;
+	priv->chip.get = intel_gpio_get;
+	priv->chip.set = intel_gpio_set;
+	priv->chip.to_irq = intel_gpio_to_irq;
+	priv->chip.base = gpio_base;
+	priv->chip.ngpio = ddata->ngpio;
+	priv->chip.can_sleep = 0;
+	priv->pdev = pdev;
+
+	spin_lock_init(&priv->lock);
+
+	priv->domain = irq_domain_add_simple(pdev->dev.of_node, ddata->ngpio,
+					irq_base, &intel_gpio_irq_ops, priv);
+	if (!priv->domain)
 		return -ENOMEM;
 
-	pci_set_drvdata(pdev, lnw);
-	retval = gpiochip_add(&lnw->chip);
+	pci_set_drvdata(pdev, priv);
+	retval = gpiochip_add(&priv->chip);
 	if (retval) {
 		dev_err(&pdev->dev, "gpiochip_add error %d\n", retval);
 		return retval;
 	}
 
-	lnw_irq_init_hw(lnw);
+	intel_mid_irq_init_hw(priv);
 
-	irq_set_handler_data(pdev->irq, lnw);
-	irq_set_chained_handler(pdev->irq, lnw_irq_handler);
+	irq_set_handler_data(pdev->irq, priv);
+	irq_set_chained_handler(pdev->irq, intel_mid_irq_handler);
 
 	pm_runtime_put_noidle(&pdev->dev);
 	pm_runtime_allow(&pdev->dev);
@@ -451,18 +454,18 @@ static int lnw_gpio_probe(struct pci_dev *pdev,
 	return 0;
 }
 
-static struct pci_driver lnw_gpio_driver = {
-	.name		= "langwell_gpio",
-	.id_table	= lnw_gpio_ids,
-	.probe		= lnw_gpio_probe,
+static struct pci_driver intel_gpio_driver = {
+	.name		= "intel_mid_gpio",
+	.id_table	= intel_gpio_ids,
+	.probe		= intel_gpio_probe,
 	.driver		= {
-		.pm	= &lnw_gpio_pm_ops,
+		.pm	= &intel_gpio_pm_ops,
 	},
 };
 
-static int __init lnw_gpio_init(void)
+static int __init intel_gpio_init(void)
 {
-	return pci_register_driver(&lnw_gpio_driver);
+	return pci_register_driver(&intel_gpio_driver);
 }
 
-device_initcall(lnw_gpio_init);
+device_initcall(intel_gpio_init);
-- 
cgit 


From ee0f5b390a0d7375a8b6af4cb0e167692e5e8a10 Mon Sep 17 00:00:00 2001
From: David Cohen <david.a.cohen@linux.intel.com>
Date: Mon, 7 Oct 2013 12:17:27 -0700
Subject: MAINTAINERS: GPIO-INTEL-MID: add maintainer

Assign david.a.cohen@linux.intel.com as maintainer of Intel MID gpio
driver at drivers/gpio/gpio-intel-mid.c.

Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 MAINTAINERS | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index e61c2e83fc2b..fe17482b60f4 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1903,6 +1903,12 @@ W:	http://bu3sch.de/btgpio.php
 S:	Maintained
 F:	drivers/gpio/gpio-bt8xx.c
 
+INTEL-MID GPIO DRIVER
+M:	David Cohen <david.a.cohen@linux.intel.com>
+L:	linux-gpio@vger.kernel.org
+S:	Maintained
+F:	drivers/gpio/gpio-intel-mid.c
+
 BTRFS FILE SYSTEM
 M:	Chris Mason <chris.mason@fusionio.com>
 L:	linux-btrfs@vger.kernel.org
-- 
cgit 


From fac7ce92d0864e2ab64b9a0e6238e00c019b11ec Mon Sep 17 00:00:00 2001
From: Markus Mayer <markus.mayer@linaro.org>
Date: Mon, 7 Oct 2013 14:51:00 -0700
Subject: gpio: bcm281xx: Fix nested interrupt handler issue

The GPIO interrupt handler does not need to be marked as nested.

Signed-off-by: Markus Mayer <markus.mayer@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-bcm-kona.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpio/gpio-bcm-kona.c b/drivers/gpio/gpio-bcm-kona.c
index c0751a8c2dee..ff5c98e8a075 100644
--- a/drivers/gpio/gpio-bcm-kona.c
+++ b/drivers/gpio/gpio-bcm-kona.c
@@ -478,7 +478,6 @@ static int bcm_kona_gpio_irq_map(struct irq_domain *d, unsigned int irq,
 		return ret;
 	irq_set_lockdep_class(irq, &gpio_lock_class);
 	irq_set_chip_and_handler(irq, &bcm_gpio_irq_chip, handle_simple_irq);
-	irq_set_nested_thread(irq, 1);
 #ifdef CONFIG_ARM
 	set_irq_flags(irq, IRQF_VALID);
 #else
-- 
cgit 


From aae26277121a99509300c8024cf88d313f18f367 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 11 Oct 2013 07:00:57 -0700
Subject: Bluetooth: Remove pointless parameter check in bfusb_send_frame()

The hdev parameter of bfusb_send_frame() is always valid. If it were
not valid, then it would have crashed earlier in the call chain.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/bfusb.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/bluetooth/bfusb.c b/drivers/bluetooth/bfusb.c
index a6758490fa61..cce23041118f 100644
--- a/drivers/bluetooth/bfusb.c
+++ b/drivers/bluetooth/bfusb.c
@@ -466,23 +466,16 @@ static int bfusb_close(struct hci_dev *hdev)
 
 static int bfusb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	struct bfusb_data *data;
+	struct bfusb_data *data = hci_get_drvdata(hdev);
 	struct sk_buff *nskb;
 	unsigned char buf[3];
 	int sent = 0, size, count;
 
 	BT_DBG("hdev %p skb %p type %d len %d", hdev, skb, bt_cb(skb)->pkt_type, skb->len);
 
-	if (!hdev) {
-		BT_ERR("Frame for unknown HCI device (hdev=NULL)");
-		return -ENODEV;
-	}
-
 	if (!test_bit(HCI_RUNNING, &hdev->flags))
 		return -EBUSY;
 
-	data = hci_get_drvdata(hdev);
-
 	switch (bt_cb(skb)->pkt_type) {
 	case HCI_COMMAND_PKT:
 		hdev->stat.cmd_tx++;
-- 
cgit 


From 3c69454afa29c8214f86534ac95565b902a0888c Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 11 Oct 2013 07:00:58 -0700
Subject: Bluetooth: Remove pointless parameter check in
 bluecard_hci_send_frame()

The hdev parameter of bluecard_hci_send_frame() is always valid. If it
were not valid, then it would have crashed earlier in the call chain.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/bluecard_cs.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/bluetooth/bluecard_cs.c b/drivers/bluetooth/bluecard_cs.c
index 9194a1ba897f..57427de864a6 100644
--- a/drivers/bluetooth/bluecard_cs.c
+++ b/drivers/bluetooth/bluecard_cs.c
@@ -660,14 +660,7 @@ static int bluecard_hci_close(struct hci_dev *hdev)
 
 static int bluecard_hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	bluecard_info_t *info;
-
-	if (!hdev) {
-		BT_ERR("Frame for unknown HCI device (hdev=NULL)");
-		return -ENODEV;
-	}
-
-	info = hci_get_drvdata(hdev);
+	bluecard_info_t *info = hci_get_drvdata(hdev);
 
 	switch (bt_cb(skb)->pkt_type) {
 	case HCI_COMMAND_PKT:
-- 
cgit 


From 2e1745583581500097a1a61dfb4e42b83f1a2c45 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 11 Oct 2013 07:00:59 -0700
Subject: Bluetooth: Remove pointless parameter check in bt3c_hci_send_frame()

The hdev parameter of bt3c_hci_send_frame() is always valid. If it
were not valid, then it would have crashed earlier in the call chain.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/bt3c_cs.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/bluetooth/bt3c_cs.c b/drivers/bluetooth/bt3c_cs.c
index fcd5fe993ad0..73d87994d028 100644
--- a/drivers/bluetooth/bt3c_cs.c
+++ b/drivers/bluetooth/bt3c_cs.c
@@ -417,16 +417,9 @@ static int bt3c_hci_close(struct hci_dev *hdev)
 
 static int bt3c_hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	bt3c_info_t *info;
+	bt3c_info_t *info = hci_get_drvdata(hdev);
 	unsigned long flags;
 
-	if (!hdev) {
-		BT_ERR("Frame for unknown HCI device (hdev=NULL)");
-		return -ENODEV;
-	}
-
-	info = hci_get_drvdata(hdev);
-
 	switch (bt_cb(skb)->pkt_type) {
 	case HCI_COMMAND_PKT:
 		hdev->stat.cmd_tx++;
-- 
cgit 


From 7648d28f28f6a661b660948b34c6ea15e163b772 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 11 Oct 2013 07:01:00 -0700
Subject: Bluetooth: Remove pointless parameter check in btmrvl_send_frame()

The hdev parameter of btmrvl_send_frame() is always valid. If it were
not valid, then it would have crashed earlier in the call chain.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/btmrvl_main.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/bluetooth/btmrvl_main.c b/drivers/bluetooth/btmrvl_main.c
index 547a447149d3..5cf31c4fe6d1 100644
--- a/drivers/bluetooth/btmrvl_main.c
+++ b/drivers/bluetooth/btmrvl_main.c
@@ -357,17 +357,10 @@ static void btmrvl_free_adapter(struct btmrvl_private *priv)
 
 static int btmrvl_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	struct btmrvl_private *priv = NULL;
+	struct btmrvl_private *priv = hci_get_drvdata(hdev);
 
 	BT_DBG("type=%d, len=%d", skb->pkt_type, skb->len);
 
-	if (!hdev) {
-		BT_ERR("Frame for unknown HCI device");
-		return -ENODEV;
-	}
-
-	priv = hci_get_drvdata(hdev);
-
 	if (!test_bit(HCI_RUNNING, &hdev->flags)) {
 		BT_ERR("Failed testing HCI_RUNING, flags=%lx", hdev->flags);
 		print_hex_dump_bytes("data: ", DUMP_PREFIX_OFFSET,
-- 
cgit 


From 6b5924bfeac1321118fbc54313fc3c25ba1a2cb5 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 11 Oct 2013 07:01:01 -0700
Subject: Bluetooth: Remove pointless parameter check in
 btuart_hci_send_frame()

The hdev parameter of btuart_hci_send_frame() is always valid. If it
were not valid, then it would have crashed earlier in the call chain.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/btuart_cs.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/bluetooth/btuart_cs.c b/drivers/bluetooth/btuart_cs.c
index f567cd8424c3..a03ecc22a561 100644
--- a/drivers/bluetooth/btuart_cs.c
+++ b/drivers/bluetooth/btuart_cs.c
@@ -425,14 +425,7 @@ static int btuart_hci_close(struct hci_dev *hdev)
 
 static int btuart_hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	btuart_info_t *info;
-
-	if (!hdev) {
-		BT_ERR("Frame for unknown HCI device (hdev=NULL)");
-		return -ENODEV;
-	}
-
-	info = hci_get_drvdata(hdev);
+	btuart_info_t *info = hci_get_drvdata(hdev);
 
 	switch (bt_cb(skb)->pkt_type) {
 	case HCI_COMMAND_PKT:
-- 
cgit 


From 03b31868a463c48d6ebd8825326ee8310fce62c3 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 11 Oct 2013 07:01:02 -0700
Subject: Bluetooth: Remove pointless parameter check in dtl1_hci_send_frame()

The hdev parameter of dtl1_hci_send_frame() is always valid. If it
were not valid, then it would have crashed earlier in the call chain.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/dtl1_cs.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/bluetooth/dtl1_cs.c b/drivers/bluetooth/dtl1_cs.c
index ad1a2f9dc772..52eed1f3565d 100644
--- a/drivers/bluetooth/dtl1_cs.c
+++ b/drivers/bluetooth/dtl1_cs.c
@@ -384,17 +384,10 @@ static int dtl1_hci_close(struct hci_dev *hdev)
 
 static int dtl1_hci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	dtl1_info_t *info;
+	dtl1_info_t *info = hci_get_drvdata(hdev);
 	struct sk_buff *s;
 	nsh_t nsh;
 
-	if (!hdev) {
-		BT_ERR("Frame for unknown HCI device (hdev=NULL)");
-		return -ENODEV;
-	}
-
-	info = hci_get_drvdata(hdev);
-
 	switch (bt_cb(skb)->pkt_type) {
 	case HCI_COMMAND_PKT:
 		hdev->stat.cmd_tx++;
-- 
cgit 


From 52bc423a7e74f5d1dac3ab61e742831e004b8e39 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 11 Oct 2013 07:01:03 -0700
Subject: Bluetooth: Remove pointless parameter check in hci_uart_send_frame()

The hdev parameter of hci_uart_send_frame() is always valid. If it
were not valid, then it would have crashed earlier in the call chain.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/hci_ldisc.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/bluetooth/hci_ldisc.c b/drivers/bluetooth/hci_ldisc.c
index b04054675c48..6e06f6f69152 100644
--- a/drivers/bluetooth/hci_ldisc.c
+++ b/drivers/bluetooth/hci_ldisc.c
@@ -236,18 +236,11 @@ static int hci_uart_close(struct hci_dev *hdev)
 /* Send frames from HCI layer */
 static int hci_uart_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	struct hci_uart *hu;
-
-	if (!hdev) {
-		BT_ERR("Frame for unknown device (hdev=NULL)");
-		return -ENODEV;
-	}
+	struct hci_uart *hu = hci_get_drvdata(hdev);
 
 	if (!test_bit(HCI_RUNNING, &hdev->flags))
 		return -EBUSY;
 
-	hu = hci_get_drvdata(hdev);
-
 	BT_DBG("%s: type %d len %d", hdev->name, bt_cb(skb)->pkt_type, skb->len);
 
 	hu->proto->enqueue(hu, skb);
-- 
cgit 


From 602987758b0a3bfb0af5b0931c302b8f552c8d2e Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 11 Oct 2013 07:01:04 -0700
Subject: Bluetooth: Remove pointless parameter check in vhci_send_frame()

The hdev parameter of vhci_send_frame() is always valid. If it were
not valid, then it would have crashed earlier in the call chain.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/hci_vhci.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index e6f591969d95..7b167385a1c4 100644
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -83,18 +83,11 @@ static int vhci_flush(struct hci_dev *hdev)
 
 static int vhci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	struct vhci_data *data;
-
-	if (!hdev) {
-		BT_ERR("Frame for unknown HCI device (hdev=NULL)");
-		return -ENODEV;
-	}
+	struct vhci_data *data = hci_get_drvdata(hdev);
 
 	if (!test_bit(HCI_RUNNING, &hdev->flags))
 		return -EBUSY;
 
-	data = hci_get_drvdata(hdev);
-
 	memcpy(skb_push(skb, 1), &bt_cb(skb)->pkt_type, 1);
 	skb_queue_tail(&data->readq, skb);
 
-- 
cgit 


From 54265202f164d7797d9eb6ec478598c76c0d8d6e Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 11 Oct 2013 07:46:18 -0700
Subject: Bluetooth: Declare btusb_table[] and blacklist_table[] as const

The btusb_table[] and blacklist_table[] USB device tables can be
declared as const.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/btusb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c
index 621069cb3053..30868fa870f6 100644
--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -50,7 +50,7 @@ static struct usb_driver btusb_driver;
 #define BTUSB_ATH3012		0x80
 #define BTUSB_INTEL		0x100
 
-static struct usb_device_id btusb_table[] = {
+static const struct usb_device_id btusb_table[] = {
 	/* Generic Bluetooth USB device */
 	{ USB_DEVICE_INFO(0xe0, 0x01, 0x01) },
 
@@ -121,7 +121,7 @@ static struct usb_device_id btusb_table[] = {
 
 MODULE_DEVICE_TABLE(usb, btusb_table);
 
-static struct usb_device_id blacklist_table[] = {
+static const struct usb_device_id blacklist_table[] = {
 	/* CSR BlueCore devices */
 	{ USB_DEVICE(0x0a12, 0x0001), .driver_info = BTUSB_CSR },
 
-- 
cgit 


From 9712d59ab60141fa05b276fe85dce736f329ad00 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 11 Oct 2013 07:46:19 -0700
Subject: Bluetooth: Declare bfusb_table[] as const

The bfusb_table[] device table can be declared as const

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/bfusb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/bluetooth/bfusb.c b/drivers/bluetooth/bfusb.c
index cce23041118f..31386998c9a7 100644
--- a/drivers/bluetooth/bfusb.c
+++ b/drivers/bluetooth/bfusb.c
@@ -42,7 +42,7 @@
 
 static struct usb_driver bfusb_driver;
 
-static struct usb_device_id bfusb_table[] = {
+static const struct usb_device_id bfusb_table[] = {
 	/* AVM BlueFRITZ! USB */
 	{ USB_DEVICE(0x057c, 0x2200) },
 
-- 
cgit 


From e8549384d0bc67fc4b5b37347080b457ebd8902c Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 11 Oct 2013 07:46:20 -0700
Subject: Bluetooth: Declare bpa10x_table[] as const

The bpa10x_table[] device table can be declared as const

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/bpa10x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/bluetooth/bpa10x.c b/drivers/bluetooth/bpa10x.c
index b9e4e621fb10..8a319913c9a9 100644
--- a/drivers/bluetooth/bpa10x.c
+++ b/drivers/bluetooth/bpa10x.c
@@ -37,7 +37,7 @@
 
 #define VERSION "0.10"
 
-static struct usb_device_id bpa10x_table[] = {
+static const struct usb_device_id bpa10x_table[] = {
 	/* Tektronix BPA 100/105 (Digianswer) */
 	{ USB_DEVICE(0x08fd, 0x0002) },
 
-- 
cgit 


From 3932eb335a7da8d43090378ea11ba84c3ec0b94a Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 11 Oct 2013 07:46:21 -0700
Subject: Bluetooth: Declare ath3k_table[] and ath3k_blist_tbl[] as const

The ath3k_table[] and ath3k_blist_tbl[] USB device tables can be
declared as const.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 drivers/bluetooth/ath3k.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c
index 0a327f4154a2..6bfc1bb318f6 100644
--- a/drivers/bluetooth/ath3k.c
+++ b/drivers/bluetooth/ath3k.c
@@ -57,7 +57,7 @@ struct ath3k_version {
 	unsigned char	reserved[0x07];
 };
 
-static struct usb_device_id ath3k_table[] = {
+static const struct usb_device_id ath3k_table[] = {
 	/* Atheros AR3011 */
 	{ USB_DEVICE(0x0CF3, 0x3000) },
 
@@ -112,7 +112,7 @@ MODULE_DEVICE_TABLE(usb, ath3k_table);
 #define BTUSB_ATH3012		0x80
 /* This table is to load patch and sysconfig files
  * for AR3012 */
-static struct usb_device_id ath3k_blist_tbl[] = {
+static const struct usb_device_id ath3k_blist_tbl[] = {
 
 	/* Atheros AR3012 with sflash firmware*/
 	{ USB_DEVICE(0x0CF3, 0x0036), .driver_info = BTUSB_ATH3012 },
-- 
cgit 


From 7eb581d5a91519c1e851b07945492049c12c99df Mon Sep 17 00:00:00 2001
From: Robert Baldyga <r.baldyga@samsung.com>
Date: Fri, 11 Oct 2013 12:48:51 +0200
Subject: usb: gadget: s3c-hsotg: remove unused label

This patch removes unused label.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/s3c-hsotg.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 920e3c9af7d5..93f786669dd5 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -2676,7 +2676,6 @@ static int s3c_hsotg_ep_enable(struct usb_ep *ep,
 	/* enable the endpoint interrupt */
 	s3c_hsotg_ctrl_epint(hsotg, index, dir_in, 1);
 
-out:
 	spin_unlock_irqrestore(&hsotg->lock, flags);
 	return ret;
 }
-- 
cgit 


From b52bc23414124b0d37fd9933b5a894d9b4a9720d Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue, 24 Sep 2013 11:56:36 -0300
Subject: perf trace: Add 'trace' alias to 'perf trace'

Make 'perf trace' more accessible by aliasing it to just 'trace':

  [root@zoo linux]# trace --duration 15 -a -e futex sleep 1
   110.092 (16.188 ms): libvirtd/1166 futex(uaddr: 0x185b344, op: WAIT|PRIV, val: 174293                    ) = 0
   110.101 (15.903 ms): libvirtd/1171 futex(uaddr: 0x185b3dc, op: WAIT|PRIV, val: 139265                    ) = 0
   111.594 (15.776 ms): libvirtd/1165 futex(uaddr: 0x185b344, op: WAIT|PRIV, val: 174295                    ) = 0
   111.610 (15.969 ms): libvirtd/1169 futex(uaddr: 0x185b3dc, op: WAIT|PRIV, val: 139267                    ) = 0
   113.556 (16.216 ms): libvirtd/1168 futex(uaddr: 0x185b3dc, op: WAIT|PRIV, val: 139269                    ) = 0
   291.265 (199.508 ms): chromium-brows/15830 futex(uaddr: 0x7fff2986bcb4, op: WAIT_BITSET|PRIV|CLKRT, val: 1, utime: 0x7fff2986bab0, val3: 4294967295) = -1 ETIMEDOUT Connection timed out
     360.354 (69.053 ms): chromium-brows/15830 futex(uaddr: 0x7fff2986bcb4, op: WAIT_BITSET|PRIV|CLKRT, val: 1, utime: 0x7fff2986bab0, val3: 4294967295) = -1 ETIMEDOUT Connection timed out
  [root@zoo linux]#

I.e. looking for futex calls that take at least 15ms, system wide, during a one
second window. Now to get callchains into 'trace' to figure out what are those
locks :-)

Requested-by: Ingo Molnar <mingo@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-ch4smqz8b5fmgrte7c5e4fuw@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Makefile.perf | 2 ++
 tools/perf/perf.c        | 9 ++++++++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 1f1361531f92..2badb08a0037 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -78,6 +78,7 @@ CC = $(CROSS_COMPILE)gcc
 AR = $(CROSS_COMPILE)ar
 
 RM      = rm -f
+LN      = ln -f
 MKDIR   = mkdir
 FIND    = find
 INSTALL = install
@@ -809,6 +810,7 @@ install-gtk:
 install-bin: all install-gtk
 	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(bindir_SQ)'
 	$(INSTALL) $(OUTPUT)perf '$(DESTDIR_SQ)$(bindir_SQ)'
+	$(LN) '$(DESTDIR_SQ)$(bindir_SQ)/perf' '$(DESTDIR_SQ)$(bindir_SQ)/trace'
 	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
 	$(INSTALL) $(OUTPUT)perf-archive -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
 ifndef NO_LIBPERL
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index 626577830264..8b38b4e80ec2 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -481,7 +481,14 @@ int main(int argc, const char **argv)
 		fprintf(stderr, "cannot handle %s internally", cmd);
 		goto out;
 	}
-
+#ifdef HAVE_LIBAUDIT_SUPPORT
+	if (!prefixcmp(cmd, "trace")) {
+		set_buildid_dir();
+		setup_path();
+		argv[0] = "trace";
+		return cmd_trace(argc, argv, NULL);
+	}
+#endif
 	/* Look for flags.. */
 	argv++;
 	argc--;
-- 
cgit 


From a9faa0cab619fad380c2669825aa84212943d528 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 23 Sep 2013 10:17:35 +0200
Subject: perf bench sched: Add --threaded option

Allow the measurement of thread versus process context switch
performance.

The default stays at 'process' based measurement, like lmbench's lat_ctx
benchmark.

Sample output:

 comet:~/tip/tools/perf> taskset 1 ./perf bench sched pipe
 # Running sched/pipe benchmark...
 # Executed 1000000 pipe operations between two processes

     Total time: 4.138 [sec]

       4.138729 usecs/op
         241620 ops/sec
 comet:~/tip/tools/perf> taskset 1 ./perf bench sched pipe --threaded
 # Running sched/pipe benchmark...
 # Executed 1000000 pipe operations between two threads

     Total time: 3.667 [sec]

       3.667667 usecs/op
         272652 ops/sec

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Link: http://lkml.kernel.org/r/20130917114256.GA31159@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/bench/sched-pipe.c | 115 +++++++++++++++++++++++++++++++-----------
 1 file changed, 86 insertions(+), 29 deletions(-)

diff --git a/tools/perf/bench/sched-pipe.c b/tools/perf/bench/sched-pipe.c
index 69cfba8d4c6c..07a8d7646a15 100644
--- a/tools/perf/bench/sched-pipe.c
+++ b/tools/perf/bench/sched-pipe.c
@@ -7,9 +7,7 @@
  * Based on pipe-test-1m.c by Ingo Molnar <mingo@redhat.com>
  *  http://people.redhat.com/mingo/cfs-scheduler/tools/pipe-test-1m.c
  * Ported to perf by Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
- *
  */
-
 #include "../perf.h"
 #include "../util/util.h"
 #include "../util/parse-options.h"
@@ -28,12 +26,24 @@
 #include <sys/time.h>
 #include <sys/types.h>
 
+#include <pthread.h>
+
+struct thread_data {
+	int			nr;
+	int			pipe_read;
+	int			pipe_write;
+	pthread_t		pthread;
+};
+
 #define LOOPS_DEFAULT 1000000
-static int loops = LOOPS_DEFAULT;
+static	int			loops = LOOPS_DEFAULT;
+
+/* Use processes by default: */
+static bool			threaded;
 
 static const struct option options[] = {
-	OPT_INTEGER('l', "loop", &loops,
-		    "Specify number of loops"),
+	OPT_INTEGER('l', "loop",	&loops,		"Specify number of loops"),
+	OPT_BOOLEAN('T', "threaded",	&threaded,	"Specify threads/process based task setup"),
 	OPT_END()
 };
 
@@ -42,13 +52,37 @@ static const char * const bench_sched_pipe_usage[] = {
 	NULL
 };
 
-int bench_sched_pipe(int argc, const char **argv,
-		     const char *prefix __maybe_unused)
+static void *worker_thread(void *__tdata)
 {
-	int pipe_1[2], pipe_2[2];
+	struct thread_data *td = __tdata;
 	int m = 0, i;
+	int ret;
+
+	for (i = 0; i < loops; i++) {
+		if (!td->nr) {
+			ret = read(td->pipe_read, &m, sizeof(int));
+			BUG_ON(ret != sizeof(int));
+			ret = write(td->pipe_write, &m, sizeof(int));
+			BUG_ON(ret != sizeof(int));
+		} else {
+			ret = write(td->pipe_write, &m, sizeof(int));
+			BUG_ON(ret != sizeof(int));
+			ret = read(td->pipe_read, &m, sizeof(int));
+			BUG_ON(ret != sizeof(int));
+		}
+	}
+
+	return NULL;
+}
+
+int bench_sched_pipe(int argc, const char **argv, const char *prefix __maybe_unused)
+{
+	struct thread_data threads[2], *td;
+	int pipe_1[2], pipe_2[2];
 	struct timeval start, stop, diff;
 	unsigned long long result_usec = 0;
+	int nr_threads = 2;
+	int t;
 
 	/*
 	 * why does "ret" exist?
@@ -58,43 +92,66 @@ int bench_sched_pipe(int argc, const char **argv,
 	int __maybe_unused ret, wait_stat;
 	pid_t pid, retpid __maybe_unused;
 
-	argc = parse_options(argc, argv, options,
-			     bench_sched_pipe_usage, 0);
+	argc = parse_options(argc, argv, options, bench_sched_pipe_usage, 0);
 
 	BUG_ON(pipe(pipe_1));
 	BUG_ON(pipe(pipe_2));
 
-	pid = fork();
-	assert(pid >= 0);
-
 	gettimeofday(&start, NULL);
 
-	if (!pid) {
-		for (i = 0; i < loops; i++) {
-			ret = read(pipe_1[0], &m, sizeof(int));
-			ret = write(pipe_2[1], &m, sizeof(int));
-		}
-	} else {
-		for (i = 0; i < loops; i++) {
-			ret = write(pipe_1[1], &m, sizeof(int));
-			ret = read(pipe_2[0], &m, sizeof(int));
+	for (t = 0; t < nr_threads; t++) {
+		td = threads + t;
+
+		td->nr = t;
+
+		if (t == 0) {
+			td->pipe_read = pipe_1[0];
+			td->pipe_write = pipe_2[1];
+		} else {
+			td->pipe_write = pipe_1[1];
+			td->pipe_read = pipe_2[0];
 		}
 	}
 
-	gettimeofday(&stop, NULL);
-	timersub(&stop, &start, &diff);
 
-	if (pid) {
+	if (threaded) {
+
+		for (t = 0; t < nr_threads; t++) {
+			td = threads + t;
+
+			ret = pthread_create(&td->pthread, NULL, worker_thread, td);
+			BUG_ON(ret);
+		}
+
+		for (t = 0; t < nr_threads; t++) {
+			td = threads + t;
+
+			ret = pthread_join(td->pthread, NULL);
+			BUG_ON(ret);
+		}
+
+	} else {
+		pid = fork();
+		assert(pid >= 0);
+
+		if (!pid) {
+			worker_thread(threads + 0);
+			exit(0);
+		} else {
+			worker_thread(threads + 1);
+		}
+
 		retpid = waitpid(pid, &wait_stat, 0);
 		assert((retpid == pid) && WIFEXITED(wait_stat));
-	} else {
-		exit(0);
 	}
 
+	gettimeofday(&stop, NULL);
+	timersub(&stop, &start, &diff);
+
 	switch (bench_format) {
 	case BENCH_FORMAT_DEFAULT:
-		printf("# Executed %d pipe operations between two tasks\n\n",
-			loops);
+		printf("# Executed %d pipe operations between two %s\n\n",
+			loops, threaded ? "threads" : "processes");
 
 		result_usec = diff.tv_sec * 1000000;
 		result_usec += diff.tv_usec;
-- 
cgit 


From f4be904d2fa7c65e230ed4b1008ebdf5f4053ac3 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Sun, 22 Sep 2013 13:22:09 +0300
Subject: perf machine: Use snprintf instead of sprintf

To avoid buffer overruns.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1379845338-29637-2-git-send-email-adrian.hunter@intel.com
[ Split from aa7fe3b ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/machine.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 6188d2876a71..ddf917b787fa 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -785,10 +785,10 @@ static int machine__create_modules(struct machine *machine)
 	const char *modules;
 	char path[PATH_MAX];
 
-	if (machine__is_default_guest(machine))
+	if (machine__is_default_guest(machine)) {
 		modules = symbol_conf.default_guest_modules;
-	else {
-		sprintf(path, "%s/proc/modules", machine->root_dir);
+	} else {
+		snprintf(path, PATH_MAX, "%s/proc/modules", machine->root_dir);
 		modules = path;
 	}
 
-- 
cgit 


From e2137086be7bc52893a790292635cfafc475b693 Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Thu, 26 Sep 2013 20:55:54 +0200
Subject: perf tools: Add missing -ldl for gtk build

If we build perf with NO_LIBPYTHON=1 NO_LIBPERL=1 the '-ldl' is not
added to libs build fails if we have gtk2 code in, because it depends on
it.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1380221754-29865-1-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/config/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index cf6ad5db19dc..29ad7d6c5311 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -382,6 +382,7 @@ ifndef NO_GTK2
     CFLAGS += -DHAVE_GTK2_SUPPORT
     GTK_CFLAGS += $(shell pkg-config --cflags gtk+-2.0 2>/dev/null)
     GTK_LIBS := $(shell pkg-config --libs gtk+-2.0 2>/dev/null)
+    EXTLIBS += -ldl
   endif
 endif
 
-- 
cgit 


From 820042233bd3c1b24b5ca4c75a88a4e0de39814a Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Fri, 27 Sep 2013 18:29:58 +0200
Subject: perf tools: Move start conditions to start of the flex file

Moving start conditions to start of the flex file so it's clear what the
INITIAL condition rules are.

Plus adding default rule for INITIAL condition. This prevents default
space to be printed for events like:

$ ./perf stat -e "cycles        " kill 2>/dev/null
        $
^^^^^^^^

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1380299398-10839-1-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/parse-events.l | 63 +++++++++++++++++++++---------------------
 1 file changed, 32 insertions(+), 31 deletions(-)

diff --git a/tools/perf/util/parse-events.l b/tools/perf/util/parse-events.l
index 91346b753960..343299575b30 100644
--- a/tools/perf/util/parse-events.l
+++ b/tools/perf/util/parse-events.l
@@ -126,6 +126,37 @@ modifier_bp	[rwx]{1,3}
 
 }
 
+<config>{
+config			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG); }
+config1			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG1); }
+config2			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG2); }
+name			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NAME); }
+period			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); }
+branch_type		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); }
+,			{ return ','; }
+"/"			{ BEGIN(INITIAL); return '/'; }
+{name_minus}		{ return str(yyscanner, PE_NAME); }
+}
+
+<mem>{
+{modifier_bp}		{ return str(yyscanner, PE_MODIFIER_BP); }
+:			{ return ':'; }
+{num_dec}		{ return value(yyscanner, 10); }
+{num_hex}		{ return value(yyscanner, 16); }
+	/*
+	 * We need to separate 'mem:' scanner part, in order to get specific
+	 * modifier bits parsed out. Otherwise we would need to handle PE_NAME
+	 * and we'd need to parse it manually. During the escape from <mem>
+	 * state we need to put the escaping char back, so we dont miss it.
+	 */
+.			{ unput(*yytext); BEGIN(INITIAL); }
+	/*
+	 * We destroy the scanner after reaching EOF,
+	 * but anyway just to be sure get back to INIT state.
+	 */
+<<EOF>>			{ BEGIN(INITIAL); }
+}
+
 cpu-cycles|cycles				{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_CPU_CYCLES); }
 stalled-cycles-frontend|idle-cycles-frontend	{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_FRONTEND); }
 stalled-cycles-backend|idle-cycles-backend	{ return sym(yyscanner, PERF_TYPE_HARDWARE, PERF_COUNT_HW_STALLED_CYCLES_BACKEND); }
@@ -162,18 +193,6 @@ speculative-read|speculative-load	|
 refs|Reference|ops|access		|
 misses|miss				{ return str(yyscanner, PE_NAME_CACHE_OP_RESULT); }
 
-<config>{
-config			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG); }
-config1			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG1); }
-config2			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_CONFIG2); }
-name			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_NAME); }
-period			{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_SAMPLE_PERIOD); }
-branch_type		{ return term(yyscanner, PARSE_EVENTS__TERM_TYPE_BRANCH_SAMPLE_TYPE); }
-,			{ return ','; }
-"/"			{ BEGIN(INITIAL); return '/'; }
-{name_minus}		{ return str(yyscanner, PE_NAME); }
-}
-
 mem:			{ BEGIN(mem); return PE_PREFIX_MEM; }
 r{num_raw_hex}		{ return raw(yyscanner); }
 {num_dec}		{ return value(yyscanner, 10); }
@@ -189,25 +208,7 @@ r{num_raw_hex}		{ return raw(yyscanner); }
 "}"			{ return '}'; }
 =			{ return '='; }
 \n			{ }
-
-<mem>{
-{modifier_bp}		{ return str(yyscanner, PE_MODIFIER_BP); }
-:			{ return ':'; }
-{num_dec}		{ return value(yyscanner, 10); }
-{num_hex}		{ return value(yyscanner, 16); }
-	/*
-	 * We need to separate 'mem:' scanner part, in order to get specific
-	 * modifier bits parsed out. Otherwise we would need to handle PE_NAME
-	 * and we'd need to parse it manually. During the escape from <mem>
-	 * state we need to put the escaping char back, so we dont miss it.
-	 */
-.			{ unput(*yytext); BEGIN(INITIAL); }
-	/*
-	 * We destroy the scanner after reaching EOF,
-	 * but anyway just to be sure get back to INIT state.
-	 */
-<<EOF>>			{ BEGIN(INITIAL); }
-}
+.			{ }
 
 %%
 
-- 
cgit 


From c458fe62ca31496664c1211a7906d261220b18f9 Mon Sep 17 00:00:00 2001
From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Mon, 30 Sep 2013 16:43:05 +0530
Subject: perf stat: Don't print bogus data on -e cycles

When only the cycles event is requested:

$ perf stat -e cycles dd if=/dev/zero of=/dev/null count=1000000
1000000+0 records in
1000000+0 records out
512000000 bytes (512 MB) copied, 0.26123 s, 2.0 GB/s

 Performance counter stats for 'dd if=/dev/zero of=/dev/null count=1000000':

       911,626,453 cycles                    #    0.000 GHz

       0.262113350 seconds time elapsed

The 0.000 GHz comment in the output is totally bogus and misleading. It
happens because update_shadow_stats() doesn't touch runtime_nsecs_stats;
it is only written when a requested counter matches a SW_TASK_CLOCK. In
our case, since we have only requested HW_CPU_CYCLES,
runtime_nsecs_stats is unavailable. So, omit printing the comment
altogether.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1380539585-23859-3-git-send-email-artagnon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-stat.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 700b47849101..ce2266c5cd52 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -997,10 +997,10 @@ static void abs_printout(int cpu, int nr, struct perf_evsel *evsel, double avg)
 	} else if (perf_evsel__match(evsel, HARDWARE, HW_CPU_CYCLES)) {
 		total = avg_stats(&runtime_nsecs_stats[cpu]);
 
-		if (total)
-			ratio = 1.0 * avg / total;
-
-		fprintf(output, " # %8.3f GHz                    ", ratio);
+		if (total) {
+			ratio = avg / total;
+			fprintf(output, " # %8.3f GHz                    ", ratio);
+		}
 	} else if (transaction_run &&
 		   perf_evsel__cmp(evsel, nth_evsel(T_CYCLES_IN_TX))) {
 		total = avg_stats(&runtime_cycles_stats[cpu]);
-- 
cgit 


From 3e7a081796146f97f166d77a655c0eb585065077 Mon Sep 17 00:00:00 2001
From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Tue, 1 Oct 2013 14:06:44 +0530
Subject: perf stat: Don't print bogus data on -e instructions

When only the instructions event is requested:

$ perf stat -e instructions git s
M  builtin-stat.c

 Performance counter stats for 'git s':

       917,453,420 instructions              #    0.00  insns per cycle

       0.213002926 seconds time elapsed

The 0.00 insns per cycle comment in the output is totally bogus and
misleading. It happens because update_shadow_stats() doesn't touch
runtime_cycles_stats when only the instructions event is requested. So,
omit printing the bogus data altogether.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1380616604-4077-1-git-send-email-artagnon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-stat.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index ce2266c5cd52..fb02b53b0e3d 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -930,11 +930,10 @@ static void abs_printout(int cpu, int nr, struct perf_evsel *evsel, double avg)
 
 	if (perf_evsel__match(evsel, HARDWARE, HW_INSTRUCTIONS)) {
 		total = avg_stats(&runtime_cycles_stats[cpu]);
-		if (total)
+		if (total) {
 			ratio = avg / total;
-
-		fprintf(output, " #   %5.2f  insns per cycle        ", ratio);
-
+			fprintf(output, " #   %5.2f  insns per cycle        ", ratio);
+		}
 		total = avg_stats(&runtime_stalled_cycles_front_stats[cpu]);
 		total = max(total, avg_stats(&runtime_stalled_cycles_back_stats[cpu]));
 
-- 
cgit 


From f3c236b0c7a84e5d59cc639a1673a20b0a59ecc0 Mon Sep 17 00:00:00 2001
From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Thu, 3 Oct 2013 14:10:36 +0530
Subject: perf tools: Ignore 'perf timechart' output file

The default output file produced by the 'perf timechart' tool is called
output.svg, add it to .gitignore.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Link: http://lkml.kernel.org/r/1380789636-4512-1-git-send-email-artagnon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/.gitignore | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/.gitignore b/tools/perf/.gitignore
index 8f8fbc227a46..782d86e961b9 100644
--- a/tools/perf/.gitignore
+++ b/tools/perf/.gitignore
@@ -13,6 +13,7 @@ perf*.html
 common-cmds.h
 perf.data
 perf.data.old
+output.svg
 perf-archive
 tags
 TAGS
-- 
cgit 


From b81a48ea877e1a104dace1392d92f708ff208f97 Mon Sep 17 00:00:00 2001
From: Petr Holasek <pholasek@redhat.com>
Date: Thu, 3 Oct 2013 19:28:45 +0200
Subject: perf bench: Fix failing assertions in numa bench

Patch adds more subtle handling of -C and -N parameters in
parse_{cpu,node}_setup_list() functions when there isn't enough NUMA
nodes or CPUs present.  Instead of assertion and terminating benchmark,
partial test is skipped with error message and perf will continue to the
next one.

Fixed problem can be easily reproduced on machine with only one NUMA
node:

 # Running numa/mem benchmark...

  # Running main, "perf bench numa mem -a"

...

 # Running RAM-bw-remote, "perf bench numa mem -p 1 -t 1 -P 1024 -C 0 -M 1 -s
perf: bench/numa.c:622: parse_setup_node_list: Assertion `!(bind_node_0 < 0 ||
		bind_node_0 >= g->p.nr_nodes)' failed.
Aborted

Signed-off-by: Petr Holasek <pholasek@redhat.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Petr Benas <pbenas@redhat.com>
Link: http://lkml.kernel.org/r/1380821325-4017-1-git-send-email-pholasek@redhat.com
Signed-off-by: Petr Benas <pbenas@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/bench/numa.c | 34 +++++++++++++++++++++-------------
 1 file changed, 21 insertions(+), 13 deletions(-)

diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
index 30d1c3225b46..64fa01cfc34d 100644
--- a/tools/perf/bench/numa.c
+++ b/tools/perf/bench/numa.c
@@ -429,14 +429,14 @@ static int parse_cpu_list(const char *arg)
 	return 0;
 }
 
-static void parse_setup_cpu_list(void)
+static int parse_setup_cpu_list(void)
 {
 	struct thread_data *td;
 	char *str0, *str;
 	int t;
 
 	if (!g->p.cpu_list_str)
-		return;
+		return 0;
 
 	dprintf("g->p.nr_tasks: %d\n", g->p.nr_tasks);
 
@@ -500,8 +500,12 @@ static void parse_setup_cpu_list(void)
 
 		dprintf("CPUs: %d_%d-%d#%dx%d\n", bind_cpu_0, bind_len, bind_cpu_1, step, mul);
 
-		BUG_ON(bind_cpu_0 < 0 || bind_cpu_0 >= g->p.nr_cpus);
-		BUG_ON(bind_cpu_1 < 0 || bind_cpu_1 >= g->p.nr_cpus);
+		if (bind_cpu_0 >= g->p.nr_cpus || bind_cpu_1 >= g->p.nr_cpus) {
+			printf("\nTest not applicable, system has only %d CPUs.\n", g->p.nr_cpus);
+			return -1;
+		}
+
+		BUG_ON(bind_cpu_0 < 0 || bind_cpu_1 < 0);
 		BUG_ON(bind_cpu_0 > bind_cpu_1);
 
 		for (bind_cpu = bind_cpu_0; bind_cpu <= bind_cpu_1; bind_cpu += step) {
@@ -541,6 +545,7 @@ out:
 		printf("# NOTE: %d tasks bound, %d tasks unbound\n", t, g->p.nr_tasks - t);
 
 	free(str0);
+	return 0;
 }
 
 static int parse_cpus_opt(const struct option *opt __maybe_unused,
@@ -561,14 +566,14 @@ static int parse_node_list(const char *arg)
 	return 0;
 }
 
-static void parse_setup_node_list(void)
+static int parse_setup_node_list(void)
 {
 	struct thread_data *td;
 	char *str0, *str;
 	int t;
 
 	if (!g->p.node_list_str)
-		return;
+		return 0;
 
 	dprintf("g->p.nr_tasks: %d\n", g->p.nr_tasks);
 
@@ -619,8 +624,12 @@ static void parse_setup_node_list(void)
 
 		dprintf("NODEs: %d-%d #%d\n", bind_node_0, bind_node_1, step);
 
-		BUG_ON(bind_node_0 < 0 || bind_node_0 >= g->p.nr_nodes);
-		BUG_ON(bind_node_1 < 0 || bind_node_1 >= g->p.nr_nodes);
+		if (bind_node_0 >= g->p.nr_nodes || bind_node_1 >= g->p.nr_nodes) {
+			printf("\nTest not applicable, system has only %d nodes.\n", g->p.nr_nodes);
+			return -1;
+		}
+
+		BUG_ON(bind_node_0 < 0 || bind_node_1 < 0);
 		BUG_ON(bind_node_0 > bind_node_1);
 
 		for (bind_node = bind_node_0; bind_node <= bind_node_1; bind_node += step) {
@@ -651,6 +660,7 @@ out:
 		printf("# NOTE: %d tasks mem-bound, %d tasks unbound\n", t, g->p.nr_tasks - t);
 
 	free(str0);
+	return 0;
 }
 
 static int parse_nodes_opt(const struct option *opt __maybe_unused,
@@ -1356,8 +1366,8 @@ static int init(void)
 	init_thread_data();
 
 	tprintf("#\n");
-	parse_setup_cpu_list();
-	parse_setup_node_list();
+	if (parse_setup_cpu_list() || parse_setup_node_list())
+		return -1;
 	tprintf("#\n");
 
 	print_summary();
@@ -1600,7 +1610,6 @@ static int run_bench_numa(const char *name, const char **argv)
 	return 0;
 
 err:
-	usage_with_options(numa_usage, options);
 	return -1;
 }
 
@@ -1701,8 +1710,7 @@ static int bench_all(void)
 	BUG_ON(ret < 0);
 
 	for (i = 0; i < nr; i++) {
-		if (run_bench_numa(tests[i][0], tests[i] + 1))
-			return -1;
+		run_bench_numa(tests[i][0], tests[i] + 1);
 	}
 
 	printf("\n");
-- 
cgit 


From a65cb4b9f8a777a715371c63c0525408048cea3e Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Wed, 2 Oct 2013 15:46:39 +0200
Subject: perf evlist: Fix perf_evlist__mmap_read event overflow

The perf_evlist__mmap_read used 'union perf_event' as a placeholder for
event crossing the mmap boundary.

This is ok for sample shorter than ~PATH_MAX. However we could grow up
to the maximum sample size which is 16 bits max.

I hit this overflow issue when using 'perf top -G dwarf' which produces
sample with the size around 8192 bytes.  We could configure any valid
sample size here using: '-G dwarf,size'.

Using array with sample max size instead for the event placeholder. Also
adding another safe check for the dynamic size of the user stack.

TODO: The 'struct perf_mmap' is quite big now, maybe we could use some
lazy allocation for event_copy size.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1380721599-24285-1-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/event.h  | 3 +++
 tools/perf/util/evlist.c | 4 ++--
 tools/perf/util/evlist.h | 2 +-
 tools/perf/util/evsel.c  | 3 +++
 4 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 9b7d4d333111..752709ccfb00 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -75,6 +75,9 @@ struct throttle_event {
 	 PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD |		\
 	 PERF_SAMPLE_IDENTIFIER)
 
+/* perf sample has 16 bits size limit */
+#define PERF_SAMPLE_MAX_SIZE (1 << 16)
+
 struct sample_event {
 	struct perf_event_header        header;
 	u64 array[];
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index f0d71a9d49f4..cb9523f50a37 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -540,7 +540,7 @@ union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx)
 		if ((old & md->mask) + size != ((old + size) & md->mask)) {
 			unsigned int offset = old;
 			unsigned int len = min(sizeof(*event), size), cpy;
-			void *dst = &md->event_copy;
+			void *dst = md->event_copy;
 
 			do {
 				cpy = min(md->mask + 1 - (offset & md->mask), len);
@@ -550,7 +550,7 @@ union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx)
 				len -= cpy;
 			} while (len);
 
-			event = &md->event_copy;
+			event = (union perf_event *) md->event_copy;
 		}
 
 		old += size;
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 871b55ab5dee..722618f84c53 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -21,7 +21,7 @@ struct perf_mmap {
 	void		 *base;
 	int		 mask;
 	unsigned int	 prev;
-	union perf_event event_copy;
+	char		 event_copy[PERF_SAMPLE_MAX_SIZE];
 };
 
 struct perf_evlist {
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index abe69af58b62..bfebc1ea3c51 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1456,6 +1456,9 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
 			array = (void *)array + sz;
 			OVERFLOW_CHECK_u64(array);
 			data->user_stack.size = *array++;
+			if (WARN_ONCE(data->user_stack.size > sz,
+				      "user stack dump failure\n"))
+				return -EFAULT;
 		}
 	}
 
-- 
cgit 


From 62d3b617c02785a4f1fbde8d93ca77a0b33d8454 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Sat, 28 Sep 2013 14:27:58 -0600
Subject: perf stat: Fix misleading message when specifying cpu list or system
 wide

The "perf stat" tool displays the command run in its summary output
which is misleading when using a cpu list or system wide collection.

Before:

perf stat -a -- sleep 1

 Performance counter stats for 'sleep 1':

16152.670249 task-clock                #   16.132 CPUs utilized
         417 context-switches          #    0.002 M/sec
           7 cpu-migrations            #    0.030 K/sec
...

After:

perf stat -a -- sleep 1

 Performance counter stats for 'system wide':

16206.931120 task-clock                #   16.144 CPUs utilized
         395 context-switches          #    0.002 M/sec
           5 cpu-migrations            #    0.030 K/sec
...

or

perf stat -C1 -- sleep 1

 Performance counter stats for 'CPU(s) 1':

   1001.669257 task-clock                #    1.000 CPUs utilized
         4,264 context-switches          #    0.004 M/sec
             3 cpu-migrations            #    0.003 K/sec
...

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1380400080-9211-2-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-stat.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index fb02b53b0e3d..c8a2662eb57a 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1229,7 +1229,11 @@ static void print_stat(int argc, const char **argv)
 	if (!csv_output) {
 		fprintf(output, "\n");
 		fprintf(output, " Performance counter stats for ");
-		if (!perf_target__has_task(&target)) {
+		if (target.system_wide)
+			fprintf(output, "\'system wide");
+		else if (target.cpu_list)
+			fprintf(output, "\'CPU(s) %s", target.cpu_list);
+		else if (!perf_target__has_task(&target)) {
 			fprintf(output, "\'%s", argv[0]);
 			for (i = 1; i < argc; i++)
 				fprintf(output, " %s", argv[i]);
-- 
cgit 


From ac3063bd4725689f39d7a23fdfca2e034c73dcac Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Mon, 30 Sep 2013 07:37:37 -0600
Subject: perf stat: Don't require a workload when using system wide or CPU
 options

The "perf stat" command can do system wide counters or one or more cpus.
For these options do not require a workload to be specified.

v2: use perf_target__none per Namhyung's comment.

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/52497F3C.9070908@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-stat.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index c8a2662eb57a..2178e6636f71 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1659,8 +1659,9 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
 	} else if (big_num_opt == 0) /* User passed --no-big-num */
 		big_num = false;
 
-	if (!argc && !perf_target__has_task(&target))
+	if (!argc && perf_target__none(&target))
 		usage_with_options(stat_usage, options);
+
 	if (run_count < 0) {
 		usage_with_options(stat_usage, options);
 	} else if (run_count == 0) {
-- 
cgit 


From 4bbe5a61f29b13437a6a16467328d3bae8fce9e7 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Sat, 28 Sep 2013 14:28:00 -0600
Subject: perf stat: Add units to nanosec-based counters

Ingo pointed out that the task-clock counter should have the units
explicitly stated since it is not a counter.

Before:

perf stat -a -- sleep 1

 Performance counter stats for 'sleep 1':

      16186.874834 task-clock          #   16.154 CPUs utilized
...

After:

perf stat -a -- sleep 1

 Performance counter stats for 'system wide':

      16146.402138 task-clock (msec)   #   16.125 CPUs utilized
...

Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1380400080-9211-4-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-stat.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 2178e6636f71..1a9c95d270aa 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -706,10 +706,13 @@ static void nsec_printout(int cpu, int nr, struct perf_evsel *evsel, double avg)
 {
 	double msecs = avg / 1e6;
 	const char *fmt = csv_output ? "%.6f%s%s" : "%18.6f%s%-25s";
+	char name[25];
 
 	aggr_printout(evsel, cpu, nr);
 
-	fprintf(output, fmt, msecs, csv_sep, perf_evsel__name(evsel));
+	scnprintf(name, sizeof(name), "%s%s",
+		  perf_evsel__name(evsel), csv_output ? "" : " (msec)");
+	fprintf(output, fmt, msecs, csv_sep, name);
 
 	if (evsel->cgrp)
 		fprintf(output, "%s%s", csv_sep, evsel->cgrp->name);
-- 
cgit 


From 8fb598e5a3b0ac213012e8461a309843ba0f2e74 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Sat, 28 Sep 2013 13:13:00 -0600
Subject: perf trace: Fix comm resolution when reading events from file

Task comm's are getting lost when processing events from a file. The
problem is that the trace struct used by the live processing has its
host machine and the perf-session used for file based processing has its
host machine.  Fix by having both references point to the same machine.

Before:

     0.030 ( 0.001 ms): :27743/27743 brk( ...
     0.057 ( 0.004 ms): :27743/27743 mmap(len: 4096, prot: READ|WRITE, flags: ...
     0.075 ( 0.006 ms): :27743/27743 access(filename: 0x7f3809fbce00, mode: R ...
     0.091 ( 0.005 ms): :27743/27743 open(filename: 0x7f3809fba14c, flags: CLOEXEC ...
...

After:
     0.030 ( 0.001 ms): make/27743 brk( ...
     0.057 ( 0.004 ms): make/27743 mmap(len: 4096, prot: READ|WRITE, flags: ...
     0.075 ( 0.006 ms): make/27743 access(filename: 0x7f3809fbce00, mode: R ...
     0.091 ( 0.005 ms): make/27743 open(filename: 0x7f3809fba14c, flags: CLOEXEC ...
...

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1380395584-9025-4-git-send-email-dsahern@gmail.com
[ Moved creation of new host machine to a separate constructor: machine__new_host() ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 25 +++++++++++++------------
 tools/perf/util/machine.c  | 17 +++++++++++++++++
 tools/perf/util/machine.h  |  1 +
 3 files changed, 31 insertions(+), 12 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index fcc157fce6c6..5776b5f829e1 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -906,7 +906,7 @@ struct trace {
 		struct syscall  *table;
 	} syscalls;
 	struct perf_record_opts opts;
-	struct machine		host;
+	struct machine		*host;
 	u64			base_time;
 	bool			full_time;
 	FILE			*output;
@@ -1083,16 +1083,17 @@ static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist)
 	if (err)
 		return err;
 
-	machine__init(&trace->host, "", HOST_KERNEL_ID);
-	machine__create_kernel_maps(&trace->host);
+	trace->host = machine__new_host();
+	if (trace->host == NULL)
+		return -ENOMEM;
 
 	if (perf_target__has_task(&trace->opts.target)) {
 		err = perf_event__synthesize_thread_map(&trace->tool, evlist->threads,
 							trace__tool_process,
-							&trace->host);
+							trace->host);
 	} else {
 		err = perf_event__synthesize_threads(&trace->tool, trace__tool_process,
-						     &trace->host);
+						     trace->host);
 	}
 
 	if (err)
@@ -1304,8 +1305,7 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
 	if (sc->filtered)
 		return 0;
 
-	thread = machine__findnew_thread(&trace->host, sample->pid,
-					 sample->tid);
+	thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
 	ttrace = thread__trace(thread, trace->output);
 	if (ttrace == NULL)
 		return -1;
@@ -1357,8 +1357,7 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
 	if (sc->filtered)
 		return 0;
 
-	thread = machine__findnew_thread(&trace->host, sample->pid,
-					 sample->tid);
+	thread = machine__findnew_thread(trace->host, sample->pid, sample->tid);
 	ttrace = thread__trace(thread, trace->output);
 	if (ttrace == NULL)
 		return -1;
@@ -1414,7 +1413,7 @@ static int trace__sched_stat_runtime(struct trace *trace, struct perf_evsel *evs
 {
         u64 runtime = perf_evsel__intval(evsel, sample, "runtime");
 	double runtime_ms = (double)runtime / NSEC_PER_MSEC;
-	struct thread *thread = machine__findnew_thread(&trace->host,
+	struct thread *thread = machine__findnew_thread(trace->host,
 							sample->pid,
 							sample->tid);
 	struct thread_trace *ttrace = thread__trace(thread, trace->output);
@@ -1597,7 +1596,7 @@ again:
 				trace->base_time = sample.time;
 
 			if (type != PERF_RECORD_SAMPLE) {
-				trace__process_event(trace, &trace->host, event);
+				trace__process_event(trace, trace->host, event);
 				continue;
 			}
 
@@ -1681,6 +1680,8 @@ static int trace__replay(struct trace *trace)
 	if (session == NULL)
 		return -ENOMEM;
 
+	trace->host = &session->machines.host;
+
 	err = perf_session__set_tracepoints_handlers(session, handlers);
 	if (err)
 		goto out;
@@ -1728,7 +1729,7 @@ static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp)
 	size_t printed = trace__fprintf_threads_header(fp);
 	struct rb_node *nd;
 
-	for (nd = rb_first(&trace->host.threads); nd; nd = rb_next(nd)) {
+	for (nd = rb_first(&trace->host->threads); nd; nd = rb_next(nd)) {
 		struct thread *thread = rb_entry(nd, struct thread, rb_node);
 		struct thread_trace *ttrace = thread->priv;
 		const char *color;
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index ddf917b787fa..fc14f9bf82c8 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -46,6 +46,23 @@ int machine__init(struct machine *machine, const char *root_dir, pid_t pid)
 	return 0;
 }
 
+struct machine *machine__new_host(void)
+{
+	struct machine *machine = malloc(sizeof(*machine));
+
+	if (machine != NULL) {
+		machine__init(machine, "", HOST_KERNEL_ID);
+
+		if (machine__create_kernel_maps(machine) < 0)
+			goto out_delete;
+	}
+
+	return machine;
+out_delete:
+	free(machine);
+	return NULL;
+}
+
 static void dsos__delete(struct list_head *dsos)
 {
 	struct dso *pos, *n;
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h
index 58a6be1fc739..5150d5e1db67 100644
--- a/tools/perf/util/machine.h
+++ b/tools/perf/util/machine.h
@@ -74,6 +74,7 @@ char *machine__mmap_name(struct machine *machine, char *bf, size_t size);
 void machines__set_symbol_filter(struct machines *machines,
 				 symbol_filter_t symbol_filter);
 
+struct machine *machine__new_host(void);
 int machine__init(struct machine *machine, const char *root_dir, pid_t pid);
 void machine__exit(struct machine *machine);
 void machine__delete_dead_threads(struct machine *machine);
-- 
cgit 


From 5e2485b1a2813faa6b80007c653f8bbbed9457ee Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Sat, 28 Sep 2013 13:13:01 -0600
Subject: perf trace: Add record option

The record option is a convience alias to include the -e raw_syscalls:*
argument to perf-record. All other options are passed to perf-record's
handler. Resulting data file can be analyzed by perf-trace -i.

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1380395584-9025-5-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-trace.txt | 12 +++++++++---
 tools/perf/builtin-trace.c              | 32 ++++++++++++++++++++++++++++++++
 2 files changed, 41 insertions(+), 3 deletions(-)

diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt
index 7f70d3640edd..1a224862118f 100644
--- a/tools/perf/Documentation/perf-trace.txt
+++ b/tools/perf/Documentation/perf-trace.txt
@@ -9,6 +9,7 @@ SYNOPSIS
 --------
 [verse]
 'perf trace'
+'perf trace record'
 
 DESCRIPTION
 -----------
@@ -16,9 +17,14 @@ This command will show the events associated with the target, initially
 syscalls, but other system events like pagefaults, task lifetime events,
 scheduling events, etc.
 
-Initially this is a live mode only tool, but eventually will work with
-perf.data files like the other tools, allowing a detached 'record' from
-analysis phases.
+This is a live mode tool in addition to working with perf.data files like
+the other perf tools. Files can be generated using the 'perf record' command
+but the session needs to include the raw_syscalls events (-e 'raw_syscalls:*').
+Alernatively, the 'perf trace record' can be used as a shortcut to
+automatically include the raw_syscalls events when writing events to a file.
+
+The following options apply to perf trace; options to perf trace record are
+found in the perf record man page.
 
 OPTIONS
 -------
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 5776b5f829e1..1e2368f56a74 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1501,6 +1501,33 @@ static int parse_target_str(struct trace *trace)
 	return 0;
 }
 
+static int trace__record(int argc, const char **argv)
+{
+	unsigned int rec_argc, i, j;
+	const char **rec_argv;
+	const char * const record_args[] = {
+		"record",
+		"-R",
+		"-m", "1024",
+		"-c", "1",
+		"-e", "raw_syscalls:sys_enter,raw_syscalls:sys_exit",
+	};
+
+	rec_argc = ARRAY_SIZE(record_args) + argc;
+	rec_argv = calloc(rec_argc + 1, sizeof(char *));
+
+	if (rec_argv == NULL)
+		return -ENOMEM;
+
+	for (i = 0; i < ARRAY_SIZE(record_args); i++)
+		rec_argv[i] = record_args[i];
+
+	for (j = 0; j < (unsigned int)argc; j++, i++)
+		rec_argv[i] = argv[j];
+
+	return cmd_record(i, rec_argv, NULL);
+}
+
 static int trace__run(struct trace *trace, int argc, const char **argv)
 {
 	struct perf_evlist *evlist = perf_evlist__new();
@@ -1788,6 +1815,8 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
 	const char * const trace_usage[] = {
 		"perf trace [<options>] [<command>]",
 		"perf trace [<options>] -- <command> [<options>]",
+		"perf trace record [<options>] [<command>]",
+		"perf trace record [<options>] -- <command> [<options>]",
 		NULL
 	};
 	struct trace trace = {
@@ -1844,6 +1873,9 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
 	int err;
 	char bf[BUFSIZ];
 
+	if ((argc > 1) && (strcmp(argv[1], "record") == 0))
+		return trace__record(argc-2, &argv[2]);
+
 	argc = parse_options(argc, argv, trace_options, trace_usage, 0);
 
 	if (output_name != NULL) {
-- 
cgit 


From 35feee19f9fda7447f51073b5be3f6d082b508f5 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Sat, 28 Sep 2013 13:12:58 -0600
Subject: perf machine: Add method to loop over threads and invoke handler

Loop over all threads within a machine - including threads moved to the
dead threads list -- and invoked a function.

This allows commands to run some specific function on each thread (eg.,
dump statistics) yet hides how the threads are maintained within the
machine.

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1380395584-9025-2-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/machine.c | 23 +++++++++++++++++++++++
 tools/perf/util/machine.h |  4 ++++
 2 files changed, 27 insertions(+)

diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index fc14f9bf82c8..901397ae82be 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1393,3 +1393,26 @@ int machine__resolve_callchain(struct machine *machine,
 				   sample);
 
 }
+
+int machine__for_each_thread(struct machine *machine,
+			     int (*fn)(struct thread *thread, void *p),
+			     void *priv)
+{
+	struct rb_node *nd;
+	struct thread *thread;
+	int rc = 0;
+
+	for (nd = rb_first(&machine->threads); nd; nd = rb_next(nd)) {
+		thread = rb_entry(nd, struct thread, rb_node);
+		rc = fn(thread, priv);
+		if (rc != 0)
+			return rc;
+	}
+
+	list_for_each_entry(thread, &machine->dead_threads, node) {
+		rc = fn(thread, priv);
+		if (rc != 0)
+			return rc;
+	}
+	return rc;
+}
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h
index 5150d5e1db67..d44c09bdc45e 100644
--- a/tools/perf/util/machine.h
+++ b/tools/perf/util/machine.h
@@ -166,4 +166,8 @@ void machines__destroy_kernel_maps(struct machines *machines);
 
 size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);
 
+int machine__for_each_thread(struct machine *machine,
+			     int (*fn)(struct thread *thread, void *p),
+			     void *priv);
+
 #endif /* __PERF_MACHINE_H */
-- 
cgit 


From 896cbb56bfee6ad99e0ee1b8209dc678f1a49f5a Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Sat, 28 Sep 2013 13:12:59 -0600
Subject: perf trace: Use new machine method to loop over threads

Use the new machine method that loops over threads to dump summary data.

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1380395584-9025-3-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 76 +++++++++++++++++++++++++++++-----------------
 1 file changed, 48 insertions(+), 28 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 1e2368f56a74..addc3e11f999 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1751,37 +1751,57 @@ static size_t trace__fprintf_threads_header(FILE *fp)
 	return printed;
 }
 
+/* struct used to pass data to per-thread function */
+struct summary_data {
+	FILE *fp;
+	struct trace *trace;
+	size_t printed;
+};
+
+static int trace__fprintf_one_thread(struct thread *thread, void *priv)
+{
+	struct summary_data *data = priv;
+	FILE *fp = data->fp;
+	size_t printed = data->printed;
+	struct trace *trace = data->trace;
+	struct thread_trace *ttrace = thread->priv;
+	const char *color;
+	double ratio;
+
+	if (ttrace == NULL)
+		return 0;
+
+	ratio = (double)ttrace->nr_events / trace->nr_events * 100.0;
+
+	color = PERF_COLOR_NORMAL;
+	if (ratio > 50.0)
+		color = PERF_COLOR_RED;
+	else if (ratio > 25.0)
+		color = PERF_COLOR_GREEN;
+	else if (ratio > 5.0)
+		color = PERF_COLOR_YELLOW;
+
+	printed += color_fprintf(fp, color, "%20s", thread->comm);
+	printed += fprintf(fp, " - %-5d :%11lu   [", thread->tid, ttrace->nr_events);
+	printed += color_fprintf(fp, color, "%5.1f%%", ratio);
+	printed += fprintf(fp, " ] %10.3f ms\n", ttrace->runtime_ms);
+
+	data->printed += printed;
+
+	return 0;
+}
+
 static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp)
 {
-	size_t printed = trace__fprintf_threads_header(fp);
-	struct rb_node *nd;
-
-	for (nd = rb_first(&trace->host->threads); nd; nd = rb_next(nd)) {
-		struct thread *thread = rb_entry(nd, struct thread, rb_node);
-		struct thread_trace *ttrace = thread->priv;
-		const char *color;
-		double ratio;
-
-		if (ttrace == NULL)
-			continue;
-
-		ratio = (double)ttrace->nr_events / trace->nr_events * 100.0;
-
-		color = PERF_COLOR_NORMAL;
-		if (ratio > 50.0)
-			color = PERF_COLOR_RED;
-		else if (ratio > 25.0)
-			color = PERF_COLOR_GREEN;
-		else if (ratio > 5.0)
-			color = PERF_COLOR_YELLOW;
-
-		printed += color_fprintf(fp, color, "%20s", thread->comm);
-		printed += fprintf(fp, " - %-5d :%11lu   [", thread->tid, ttrace->nr_events);
-		printed += color_fprintf(fp, color, "%5.1f%%", ratio);
-		printed += fprintf(fp, " ] %10.3f ms\n", ttrace->runtime_ms);
-	}
+	struct summary_data data = {
+		.fp = fp,
+		.trace = trace
+	};
+	data.printed = trace__fprintf_threads_header(fp);
 
-	return printed;
+	machine__for_each_thread(trace->host, trace__fprintf_one_thread, &data);
+
+	return data.printed;
 }
 
 static int trace__set_duration(const struct option *opt, const char *str,
-- 
cgit 


From 2969b12993ca7a8b9692048431e075a67815002d Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Sat, 28 Sep 2013 13:13:02 -0600
Subject: perf intlist: Add priv member

Allows commands to leverage intlist infrastructure for opaque
structures.

For example an upcoming perf-trace change will use this as a means of
tracking syscalls statistics by task.

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1380395584-9025-6-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/intlist.c | 1 +
 tools/perf/util/intlist.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/tools/perf/util/intlist.c b/tools/perf/util/intlist.c
index 11a8d86f7fea..826d7b38c9a0 100644
--- a/tools/perf/util/intlist.c
+++ b/tools/perf/util/intlist.c
@@ -20,6 +20,7 @@ static struct rb_node *intlist__node_new(struct rblist *rblist __maybe_unused,
 
 	if (node != NULL) {
 		node->i = i;
+		node->priv = NULL;
 		rc = &node->rb_node;
 	}
 
diff --git a/tools/perf/util/intlist.h b/tools/perf/util/intlist.h
index 62351dad848f..0eb00ac39e01 100644
--- a/tools/perf/util/intlist.h
+++ b/tools/perf/util/intlist.h
@@ -9,6 +9,7 @@
 struct int_node {
 	struct rb_node rb_node;
 	int i;
+	void *priv;
 };
 
 struct intlist {
-- 
cgit 


From 316d70d6dbde540b275289563cbddd9f0c903fc6 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 8 Oct 2013 11:45:48 +0300
Subject: perf symbols: Make a separate function to parse /proc/modules

Make a separate function to parse /proc/modules so that it can be
reused.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1381221956-16699-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/machine.c | 67 +++++++++++++----------------------------------
 tools/perf/util/symbol.c  | 58 ++++++++++++++++++++++++++++++++++++++++
 tools/perf/util/symbol.h  |  3 +++
 3 files changed, 79 insertions(+), 49 deletions(-)

diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 901397ae82be..6b861aefd99a 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -793,12 +793,22 @@ static int machine__set_modules_path(struct machine *machine)
 	return map_groups__set_modules_path_dir(&machine->kmaps, modules_path);
 }
 
-static int machine__create_modules(struct machine *machine)
+static int machine__create_module(void *arg, const char *name, u64 start)
 {
-	char *line = NULL;
-	size_t n;
-	FILE *file;
+	struct machine *machine = arg;
 	struct map *map;
+
+	map = machine__new_module(machine, start, name);
+	if (map == NULL)
+		return -1;
+
+	dso__kernel_module_get_build_id(map->dso, machine->root_dir);
+
+	return 0;
+}
+
+static int machine__create_modules(struct machine *machine)
+{
 	const char *modules;
 	char path[PATH_MAX];
 
@@ -812,56 +822,15 @@ static int machine__create_modules(struct machine *machine)
 	if (symbol__restricted_filename(modules, "/proc/modules"))
 		return -1;
 
-	file = fopen(modules, "r");
-	if (file == NULL)
+	if (modules__parse(modules, machine, machine__create_module))
 		return -1;
 
-	while (!feof(file)) {
-		char name[PATH_MAX];
-		u64 start;
-		char *sep;
-		int line_len;
-
-		line_len = getline(&line, &n, file);
-		if (line_len < 0)
-			break;
-
-		if (!line)
-			goto out_failure;
-
-		line[--line_len] = '\0'; /* \n */
-
-		sep = strrchr(line, 'x');
-		if (sep == NULL)
-			continue;
-
-		hex2u64(sep + 1, &start);
-
-		sep = strchr(line, ' ');
-		if (sep == NULL)
-			continue;
-
-		*sep = '\0';
-
-		snprintf(name, sizeof(name), "[%s]", line);
-		map = machine__new_module(machine, start, name);
-		if (map == NULL)
-			goto out_delete_line;
-		dso__kernel_module_get_build_id(map->dso, machine->root_dir);
-	}
+	if (!machine__set_modules_path(machine))
+		return 0;
 
-	free(line);
-	fclose(file);
+	pr_debug("Problems setting modules path maps, continuing anyway...\n");
 
-	if (machine__set_modules_path(machine) < 0) {
-		pr_debug("Problems setting modules path maps, continuing anyway...\n");
-	}
 	return 0;
-
-out_delete_line:
-	free(line);
-out_failure:
-	return -1;
 }
 
 int machine__create_kernel_maps(struct machine *machine)
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 48c38791d61b..5fd95135e838 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -500,6 +500,64 @@ out_failure:
 	return -1;
 }
 
+int modules__parse(const char *filename, void *arg,
+		   int (*process_module)(void *arg, const char *name,
+					 u64 start))
+{
+	char *line = NULL;
+	size_t n;
+	FILE *file;
+	int err = 0;
+
+	file = fopen(filename, "r");
+	if (file == NULL)
+		return -1;
+
+	while (1) {
+		char name[PATH_MAX];
+		u64 start;
+		char *sep;
+		ssize_t line_len;
+
+		line_len = getline(&line, &n, file);
+		if (line_len < 0) {
+			if (feof(file))
+				break;
+			err = -1;
+			goto out;
+		}
+
+		if (!line) {
+			err = -1;
+			goto out;
+		}
+
+		line[--line_len] = '\0'; /* \n */
+
+		sep = strrchr(line, 'x');
+		if (sep == NULL)
+			continue;
+
+		hex2u64(sep + 1, &start);
+
+		sep = strchr(line, ' ');
+		if (sep == NULL)
+			continue;
+
+		*sep = '\0';
+
+		scnprintf(name, sizeof(name), "[%s]", line);
+
+		err = process_module(arg, name, start);
+		if (err)
+			break;
+	}
+out:
+	free(line);
+	fclose(file);
+	return err;
+}
+
 struct process_kallsyms_args {
 	struct map *map;
 	struct dso *dso;
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 9b8b213a62c1..2d3eb43ab9f9 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -223,6 +223,9 @@ int sysfs__read_build_id(const char *filename, void *bf, size_t size);
 int kallsyms__parse(const char *filename, void *arg,
 		    int (*process_symbol)(void *arg, const char *name,
 					  char type, u64 start));
+int modules__parse(const char *filename, void *arg,
+		   int (*process_module)(void *arg, const char *name,
+					 u64 start));
 int filename__read_debuglink(const char *filename, char *debuglink,
 			     size_t size);
 
-- 
cgit 


From 03e3adc9f4d8b57dc83475c8c4c6e462a78ff709 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue, 8 Oct 2013 16:00:21 -0300
Subject: perf trace: Allow specifying index offset in strarrays

So that the index passed doesn't have to start at zero, being
decremented from an offset specified when declaring the strarray before
being used as the real array index.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-k1ce6uqyt4qar9edrj3mevod@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index addc3e11f999..7424298b87e3 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -44,6 +44,7 @@ struct syscall_arg {
 };
 
 struct strarray {
+	int	    offset;
 	int	    nr_entries;
 	const char **entries;
 };
@@ -53,14 +54,20 @@ struct strarray {
 	.entries = array, \
 }
 
+#define DEFINE_STRARRAY_OFFSET(array, off) struct strarray strarray__##array = { \
+	.offset	    = off, \
+	.nr_entries = ARRAY_SIZE(array), \
+	.entries = array, \
+}
+
 static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size,
 					      struct syscall_arg *arg)
 {
-	int idx = arg->val;
 	struct strarray *sa = arg->parm;
+	int idx = arg->val - sa->offset;
 
 	if (idx < 0 || idx >= sa->nr_entries)
-		return scnprintf(bf, size, "%d", idx);
+		return scnprintf(bf, size, "%d", arg->val);
 
 	return scnprintf(bf, size, "%s", sa->entries[idx]);
 }
@@ -288,8 +295,8 @@ static size_t syscall_arg__scnprintf_futex_op(char *bf, size_t size, struct sysc
 
 #define SCA_FUTEX_OP  syscall_arg__scnprintf_futex_op
 
-static const char *epoll_ctl_ops[] = { [1] = "ADD", "DEL", "MOD", };
-static DEFINE_STRARRAY(epoll_ctl_ops);
+static const char *epoll_ctl_ops[] = { "ADD", "DEL", "MOD", };
+static DEFINE_STRARRAY_OFFSET(epoll_ctl_ops, 1);
 
 static const char *itimers[] = { "REAL", "VIRTUAL", "PROF", };
 static DEFINE_STRARRAY(itimers);
-- 
cgit 


From 975b7c2f40d431da4fdb46dd8b9d90c129eecc12 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue, 8 Oct 2013 17:17:43 -0300
Subject: perf trace: Prepare the strarray scnprintf method for reuse

Right now when an index passed to that method has no string associated
it'll print the index as a decimal number, prepare it so that we can use
it to print it in hex as well, for ioctls, for instance.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-nsvy06sqj64qvnkmzvwxsx2v@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 7424298b87e3..0d4af1d7e55c 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -60,18 +60,25 @@ struct strarray {
 	.entries = array, \
 }
 
-static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size,
-					      struct syscall_arg *arg)
+static size_t __syscall_arg__scnprintf_strarray(char *bf, size_t size,
+						const char *intfmt,
+					        struct syscall_arg *arg)
 {
 	struct strarray *sa = arg->parm;
 	int idx = arg->val - sa->offset;
 
 	if (idx < 0 || idx >= sa->nr_entries)
-		return scnprintf(bf, size, "%d", arg->val);
+		return scnprintf(bf, size, intfmt, arg->val);
 
 	return scnprintf(bf, size, "%s", sa->entries[idx]);
 }
 
+static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size,
+					      struct syscall_arg *arg)
+{
+	return __syscall_arg__scnprintf_strarray(bf, size, "%d", arg);
+}
+
 #define SCA_STRARRAY syscall_arg__scnprintf_strarray
 
 static size_t syscall_arg__scnprintf_fd(char *bf, size_t size,
-- 
cgit 


From 78645cf3ed32860a3e83b8e35aa469f5b844a4ba Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue, 8 Oct 2013 17:43:20 -0300
Subject: perf trace: Initial beautifier for ioctl's 'cmd' arg

 [root@zoo linux]# trace -e ioctl | grep -v "cmd: 0x" | head -10
      0.386 ( 0.001 ms): trace/1602 ioctl(fd: 1<pipe:[127057]>, cmd: TCGETS, arg: 0x7fff59fcb4d0          ) = -1 ENOTTY Inappropriate ioctl for device
   1459.368 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc  ) = 0
   1463.586 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc  ) = 0
   1463.611 ( 0.002 ms): inotify_reader/10352 ioctl(fd: 18<anon_inode:inotify>, cmd: FIONREAD, arg: 0x7fb835228bcc  ) = 0
   3740.526 ( 0.002 ms): awk/1612 ioctl(fd: 1<pipe:[128265]>, cmd: TCGETS, arg: 0x7fff4d166b90          ) = -1 ENOTTY Inappropriate ioctl for device
   3740.704 ( 0.001 ms): awk/1612 ioctl(fd: 3</proc/meminfo>, cmd: TCGETS, arg: 0x7fff4d1669a0          ) = -1 ENOTTY Inappropriate ioctl for device
   3742.550 ( 0.002 ms): ps/1614 ioctl(fd: 1<pipe:[128266]>, cmd: TIOCGWINSZ, arg: 0x7fff591762b0      ) = -1 ENOTTY Inappropriate ioctl for device
   3742.555 ( 0.003 ms): ps/1614 ioctl(fd: 2<socket:[19550]>, cmd: TIOCGWINSZ, arg: 0x7fff591762b0     ) = -1 ENOTTY Inappropriate ioctl for device
   3742.558 ( 0.002 ms): ps/1614 ioctl(cmd: TIOCGWINSZ, arg: 0x7fff591762b0                            ) = -1 ENOTTY Inappropriate ioctl for device
   3742.572 ( 0.002 ms): ps/1614 ioctl(fd: 1<pipe:[128266]>, cmd: TCGETS, arg: 0x7fff59176220          ) = -1 ENOTTY Inappropriate ioctl for device
 [root@zoo linux]#

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-afajwap3mr60dfl4qpdl1pxn@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 34 +++++++++++++++++++++++++++++++++-
 1 file changed, 33 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 0d4af1d7e55c..19ddcabc73d2 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -81,6 +81,14 @@ static size_t syscall_arg__scnprintf_strarray(char *bf, size_t size,
 
 #define SCA_STRARRAY syscall_arg__scnprintf_strarray
 
+static size_t syscall_arg__scnprintf_strhexarray(char *bf, size_t size,
+						 struct syscall_arg *arg)
+{
+	return __syscall_arg__scnprintf_strarray(bf, size, "%#x", arg);
+}
+
+#define SCA_STRHEXARRAY syscall_arg__scnprintf_strhexarray
+
 static size_t syscall_arg__scnprintf_fd(char *bf, size_t size,
 					struct syscall_arg *arg);
 
@@ -633,6 +641,28 @@ static size_t syscall_arg__scnprintf_signum(char *bf, size_t size, struct syscal
 
 #define SCA_SIGNUM syscall_arg__scnprintf_signum
 
+#define TCGETS		0x5401
+
+static const char *tioctls[] = {
+	"TCGETS", "TCSETS", "TCSETSW", "TCSETSF", "TCGETA", "TCSETA", "TCSETAW",
+	"TCSETAF", "TCSBRK", "TCXONC", "TCFLSH", "TIOCEXCL", "TIOCNXCL",
+	"TIOCSCTTY", "TIOCGPGRP", "TIOCSPGRP", "TIOCOUTQ", "TIOCSTI",
+	"TIOCGWINSZ", "TIOCSWINSZ", "TIOCMGET", "TIOCMBIS", "TIOCMBIC",
+	"TIOCMSET", "TIOCGSOFTCAR", "TIOCSSOFTCAR", "FIONREAD", "TIOCLINUX",
+	"TIOCCONS", "TIOCGSERIAL", "TIOCSSERIAL", "TIOCPKT", "FIONBIO",
+	"TIOCNOTTY", "TIOCSETD", "TIOCGETD", "TCSBRKP", [0x27] = "TIOCSBRK",
+	"TIOCCBRK", "TIOCGSID", "TCGETS2", "TCSETS2", "TCSETSW2", "TCSETSF2",
+	"TIOCGRS485", "TIOCSRS485", "TIOCGPTN", "TIOCSPTLCK",
+	"TIOCGDEV||TCGETX", "TCSETX", "TCSETXF", "TCSETXW", "TIOCSIG",
+	"TIOCVHANGUP", "TIOCGPKT", "TIOCGPTLCK", "TIOCGEXCL",
+	[0x50] = "FIONCLEX", "FIOCLEX", "FIOASYNC", "TIOCSERCONFIG",
+	"TIOCSERGWILD", "TIOCSERSWILD", "TIOCGLCKTRMIOS", "TIOCSLCKTRMIOS",
+	"TIOCSERGSTRUCT", "TIOCSERGETLSR", "TIOCSERGETMULTI", "TIOCSERSETMULTI",
+	"TIOCMIWAIT", "TIOCGICOUNT", [0x60] = "FIOQSIZE",
+};
+
+static DEFINE_STRARRAY_OFFSET(tioctls, 0x5401);
+
 #define STRARRAY(arg, name, array) \
 	  .arg_scnprintf = { [arg] = SCA_STRARRAY, }, \
 	  .arg_parm	 = { [arg] = &strarray__##array, }
@@ -713,7 +743,9 @@ static struct syscall_fmt {
 	{ .name	    = "getrlimit",  .errmsg = true, STRARRAY(0, resource, rlimit_resources), },
 	{ .name	    = "ioctl",	    .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_FD, /* fd */ 
-			     [2] = SCA_HEX, /* arg */ }, },
+			     [1] = SCA_STRHEXARRAY, /* cmd */
+			     [2] = SCA_HEX, /* arg */ },
+	  .arg_parm	 = { [1] = &strarray__tioctls, /* cmd */ }, },
 	{ .name	    = "kill",	    .errmsg = true,
 	  .arg_scnprintf = { [1] = SCA_SIGNUM, /* sig */ }, },
 	{ .name	    = "linkat",	    .errmsg = true,
-- 
cgit 


From cee972c0e6940ec75bab2d02f37e96d06ce143eb Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Thu, 10 Oct 2013 07:42:56 +0200
Subject: perf tools: Fix redirection printouts

Fix the duplicate util/util printout Arnaldo reported:

       $ make V=1 O=/tmp/build/perf -C tools/perf/ util/srcline.o
   ...
       # Redirected target util/srcline.o =>     /tmp/build/perf/util/util/srcline.o

Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20131010054256.GA23716@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Makefile.perf | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 2badb08a0037..8bc6d0c4e776 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -600,11 +600,11 @@ ifneq ($(OUTPUT),)
 %.o: $(OUTPUT)%.o
 	@echo "    # Redirected target $@ => $(OUTPUT)$@"
 util/%.o: $(OUTPUT)util/%.o
-	@echo "    # Redirected target $@ => $(OUTPUT)util/$@"
+	@echo "    # Redirected target $@ => $(OUTPUT)$@"
 bench/%.o: $(OUTPUT)bench/%.o
-	@echo "    # Redirected target $@ => $(OUTPUT)bench/$@"
+	@echo "    # Redirected target $@ => $(OUTPUT)$@"
 tests/%.o: $(OUTPUT)tests/%.o
-	@echo "    # Redirected target $@ => $(OUTPUT)tests/$@"
+	@echo "    # Redirected target $@ => $(OUTPUT)$@"
 endif
 
 # These two need to be here so that when O= is not used they take precedence
-- 
cgit 


From 8ec19c0eba73d7221e93e993c1c8bd62484354e9 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 9 Oct 2013 11:49:26 +0200
Subject: perf tools: Implement summary output for 'make clean'

'make clean' used to show all the rm lines, which isn't really
informative in any way and spams the console.

Implement summary output:

  comet:~/tip/tools/perf> make clean
   CLEAN libtraceevent
   CLEAN liblk
   CLEAN config
   CLEAN core-objs
   CLEAN core-progs
   CLEAN core-gen
   CLEAN Documentation
   CLEAN python

'make clean V=1' will still show the old, detailed output.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1381312169-17354-2-git-send-email-mingo@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/Makefile | 18 ++++++++++--------
 tools/perf/Makefile.perf          | 24 ++++++++++++------------
 tools/perf/config/utilities.mak   |  6 ++++++
 tools/scripts/Makefile.include    |  2 +-
 4 files changed, 29 insertions(+), 21 deletions(-)

diff --git a/tools/perf/Documentation/Makefile b/tools/perf/Documentation/Makefile
index eaa477f00673..be5adb1e0290 100644
--- a/tools/perf/Documentation/Makefile
+++ b/tools/perf/Documentation/Makefile
@@ -246,15 +246,17 @@ $(OUTPUT)cmd-list.made: cmd-list.perl ../command-list.txt $(MAN1_TXT)
 	$(PERL_PATH) ./cmd-list.perl ../command-list.txt $(QUIET_STDERR) && \
 	date >$@
 
+CLEAN_FILES =									\
+	$(MAN_XML) $(addsuffix +,$(MAN_XML))					\
+	$(MAN_HTML) $(addsuffix +,$(MAN_HTML))					\
+	$(DOC_HTML) $(DOC_MAN1) $(DOC_MAN5) $(DOC_MAN7)				\
+	$(OUTPUT)*.texi $(OUTPUT)*.texi+ $(OUTPUT)*.texi++			\
+	$(OUTPUT)perf.info $(OUTPUT)perfman.info				\
+	$(OUTPUT)howto-index.txt $(OUTPUT)howto/*.html $(OUTPUT)doc.dep		\
+	$(OUTPUT)technical/api-*.html $(OUTPUT)technical/api-index.txt		\
+	$(cmds_txt) $(OUTPUT)*.made
 clean:
-	$(RM) $(MAN_XML) $(addsuffix +,$(MAN_XML))
-	$(RM) $(MAN_HTML) $(addsuffix +,$(MAN_HTML))
-	$(RM) $(DOC_HTML) $(DOC_MAN1) $(DOC_MAN5) $(DOC_MAN7)
-	$(RM) $(OUTPUT)*.texi $(OUTPUT)*.texi+ $(OUTPUT)*.texi++
-	$(RM) $(OUTPUT)perf.info $(OUTPUT)perfman.info
-	$(RM) $(OUTPUT)howto-index.txt $(OUTPUT)howto/*.html $(OUTPUT)doc.dep
-	$(RM) $(OUTPUT)technical/api-*.html $(OUTPUT)technical/api-index.txt
-	$(RM) $(cmds_txt) $(OUTPUT)*.made
+	$(call QUIET_CLEAN, Documentation) $(RM) $(CLEAN_FILES)
 
 $(MAN_HTML): $(OUTPUT)%.html : %.txt
 	$(QUIET_ASCIIDOC)$(RM) $@+ $@ && \
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 8bc6d0c4e776..250b276c136f 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -148,7 +148,7 @@ PYTHON_EXTBUILD_LIB := $(PYTHON_EXTBUILD)lib/
 PYTHON_EXTBUILD_TMP := $(PYTHON_EXTBUILD)tmp/
 export PYTHON_EXTBUILD_LIB PYTHON_EXTBUILD_TMP
 
-python-clean := rm -rf $(PYTHON_EXTBUILD) $(OUTPUT)python/perf.so
+python-clean := $(call QUIET_CLEAN, python) $(RM) -r $(PYTHON_EXTBUILD) $(OUTPUT)python/perf.so
 
 PYTHON_EXT_SRCS := $(shell grep -v ^\# util/python-ext-sources)
 PYTHON_EXT_DEPS := util/python-ext-sources util/setup.py $(LIBTRACEEVENT) $(LIBLK)
@@ -708,7 +708,8 @@ $(LIBTRACEEVENT): $(TE_SOURCES)
 	$(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) libtraceevent.a
 
 $(LIBTRACEEVENT)-clean:
-	$(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) clean
+	$(call QUIET_CLEAN, libtraceevent)
+	@$(MAKE) -C $(TRACE_EVENT_DIR) O=$(OUTPUT) clean >/dev/null
 
 LIBLK_SOURCES = $(wildcard $(LK_PATH)*.[ch])
 
@@ -721,7 +722,8 @@ endif
 
 $(LIBLK)-clean:
 ifeq ($(subdir),)
-	$(QUIET_SUBDIR0)$(LK_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) clean
+	$(call QUIET_CLEAN, liblk)
+	@$(MAKE) -C $(LK_DIR) O=$(OUTPUT) clean >/dev/null
 endif
 
 help:
@@ -850,17 +852,15 @@ $(INSTALL_DOC_TARGETS):
 # not get included for the clean target:
 #
 config-clean:
-	@$(MAKE) -C config/feature-checks clean
+	$(call QUIET_CLEAN, config)
+	@$(MAKE) -C config/feature-checks clean >/dev/null
 
 clean: $(LIBTRACEEVENT)-clean $(LIBLK)-clean config-clean
-	$(RM) $(LIB_OBJS) $(BUILTIN_OBJS) $(LIB_FILE) $(GTK_OBJS)
-	$(RM) $(OUTPUT)perf-archive $(OUTPUT)perf.o $(LANG_BINDINGS)
-	$(RM) $(ALL_PROGRAMS) perf
-	$(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope*
-	$(QUIET_SUBDIR0)Documentation $(QUIET_SUBDIR1) clean
-	$(RM) $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)PERF-CFLAGS
-	$(RM) $(OUTPUT)util/*-bison*
-	$(RM) $(OUTPUT)util/*-flex*
+	$(call QUIET_CLEAN, core-objs)  $(RM) $(LIB_OBJS) $(BUILTIN_OBJS) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf.o $(LANG_BINDINGS) $(GTK_OBJS)
+	$(call QUIET_CLEAN, core-progs) $(RM) $(ALL_PROGRAMS) perf
+	$(call QUIET_CLEAN, core-gen)   $(RM)  *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)PERF-CFLAGS $(OUTPUT)util/*-bison* $(OUTPUT)util/*-flex*
+	$(call QUIET_CLEAN, Documentation)
+	@$(MAKE) -C Documentation O=$(OUTPUT) clean >/dev/null
 	$(python-clean)
 
 #
diff --git a/tools/perf/config/utilities.mak b/tools/perf/config/utilities.mak
index 4d985e0f03f5..94908a5fbea7 100644
--- a/tools/perf/config/utilities.mak
+++ b/tools/perf/config/utilities.mak
@@ -178,3 +178,9 @@ endef
 _ge_attempt = $(if $(get-executable),$(get-executable),$(_gea_warn)$(call _gea_err,$(2)))
 _gea_warn = $(warning The path '$(1)' is not executable.)
 _gea_err  = $(if $(1),$(error Please set '$(1)' appropriately))
+
+ifneq ($(findstring $(MAKEFLAGS),s),s)
+  ifneq ($(V),1)
+    QUIET_CLEAN      = @printf '  CLEAN %s\n' $(1);
+  endif
+endif
diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include
index 0d0506d55c71..1853736c8106 100644
--- a/tools/scripts/Makefile.include
+++ b/tools/scripts/Makefile.include
@@ -66,7 +66,7 @@ ifneq ($(V),1)
 	QUIET_MKDIR    = @echo '   ' MKDIR $@;
 	QUIET_GEN      = @echo '   ' GEN $@;
 	QUIET_SUBDIR0  = +@subdir=
-	QUIET_SUBDIR1  = ;$(NO_SUBDIR) echo '   ' SUBDIR $$subdir; \
+	QUIET_SUBDIR1  = ;$(NO_SUBDIR) echo '  ' SUBDIR $$subdir; \
 			 $(MAKE) $(PRINT_DIR) -C $$subdir
 	QUIET_FLEX     = @echo '   ' FLEX $@;
 	QUIET_BISON    = @echo '   ' BISON $@;
-- 
cgit 


From 65fb09922d4ca5da54fe18d7b44e5961caf169ad Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 9 Oct 2013 11:49:27 +0200
Subject: tools: Harmonize the various build messages in perf, lib-traceevent,
 lib-lk

The various build lines from libtraceevent and perf mix up during a
parallel build and produce unaligned output like:

    CC builtin-buildid-list.o
    CC builtin-buildid-cache.o
    CC builtin-list.o
  CC FPIC            trace-seq.o
    CC builtin-record.o
  CC FPIC            parse-filter.o
    CC builtin-report.o
    CC builtin-stat.o
  CC FPIC            parse-utils.o
  CC FPIC            kbuffer-parse.o
    CC builtin-timechart.o
    CC builtin-top.o
    CC builtin-script.o
  BUILD STATIC LIB   libtraceevent.a
    CC builtin-probe.o
    CC builtin-kmem.o
    CC builtin-lock.o

To solve this, harmonize all the build message alignments to be similar
to the kernel's kbuild output: prefixed by two spaces and 11-char wide.

After the patch the output looks pretty tidy, even if output lines get
mixed up:

  CC      builtin-annotate.o
  FLAGS:  * new build flags or cross compiler
  CC      builtin-bench.o
  AR      liblk.a
  CC      bench/sched-messaging.o
  CC FPIC event-parse.o
  CC      bench/sched-pipe.o
  CC FPIC trace-seq.o
  CC      bench/mem-memcpy.o
  CC      bench/mem-memset.o
  CC FPIC parse-filter.o
  CC      builtin-diff.o
  CC      builtin-evlist.o
  CC      builtin-help.o

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1381312169-17354-3-git-send-email-mingo@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/Makefile     | 18 +++++++++---------
 tools/perf/Documentation/Makefile | 17 +++++++++--------
 tools/perf/Makefile               |  2 +-
 tools/perf/Makefile.perf          |  2 +-
 tools/scripts/Makefile.include    | 23 ++++++++++++-----------
 5 files changed, 32 insertions(+), 30 deletions(-)

diff --git a/tools/lib/traceevent/Makefile b/tools/lib/traceevent/Makefile
index ca6cb779876a..fc1502098595 100644
--- a/tools/lib/traceevent/Makefile
+++ b/tools/lib/traceevent/Makefile
@@ -134,14 +134,14 @@ ifeq ($(VERBOSE),1)
   print_install =
 else
   Q = @
-  print_compile =		echo '  CC                 '$(OBJ);
-  print_app_build =		echo '  BUILD              '$(OBJ);
-  print_fpic_compile =		echo '  CC FPIC            '$(OBJ);
-  print_shared_lib_compile =	echo '  BUILD SHARED LIB   '$(OBJ);
-  print_plugin_obj_compile =	echo '  CC PLUGIN OBJ      '$(OBJ);
-  print_plugin_build =		echo '  CC PLUGI           '$(OBJ);
-  print_static_lib_build =	echo '  BUILD STATIC LIB   '$(OBJ);
-  print_install =		echo '  INSTALL     '$1'	to	$(DESTDIR_SQ)$2';
+  print_compile =		echo '  CC       '$(OBJ);
+  print_app_build =		echo '  BUILD    '$(OBJ);
+  print_fpic_compile =		echo '  CC FPIC  '$(OBJ);
+  print_shared_lib_compile =	echo '  BUILD    SHARED LIB '$(OBJ);
+  print_plugin_obj_compile =	echo '  BUILD    PLUGIN OBJ '$(OBJ);
+  print_plugin_build =		echo '  BUILD    PLUGIN     '$(OBJ);
+  print_static_lib_build =	echo '  BUILD    STATIC LIB '$(OBJ);
+  print_install =		echo '  INSTALL  '$1'	to	$(DESTDIR_SQ)$2';
 endif
 
 do_fpic_compile =					\
@@ -268,7 +268,7 @@ TRACK_CFLAGS = $(subst ','\'',$(CFLAGS)):$(ARCH):$(CROSS_COMPILE)
 TRACEEVENT-CFLAGS: force
 	@FLAGS='$(TRACK_CFLAGS)'; \
 	    if test x"$$FLAGS" != x"`cat TRACEEVENT-CFLAGS 2>/dev/null`" ; then \
-		echo 1>&2 "    * new build flags or cross compiler"; \
+		echo 1>&2 "  FLAGS:   * new build flags or cross compiler"; \
 		echo "$$FLAGS" >TRACEEVENT-CFLAGS; \
             fi
 
diff --git a/tools/perf/Documentation/Makefile b/tools/perf/Documentation/Makefile
index be5adb1e0290..c4c300cf155f 100644
--- a/tools/perf/Documentation/Makefile
+++ b/tools/perf/Documentation/Makefile
@@ -145,16 +145,17 @@ endif
 
 ifneq ($(findstring $(MAKEFLAGS),s),s)
 ifneq ($(V),1)
-	QUIET_ASCIIDOC	= @echo '   ' ASCIIDOC $@;
-	QUIET_XMLTO	= @echo '   ' XMLTO $@;
-	QUIET_DB2TEXI	= @echo '   ' DB2TEXI $@;
-	QUIET_MAKEINFO	= @echo '   ' MAKEINFO $@;
-	QUIET_DBLATEX	= @echo '   ' DBLATEX $@;
-	QUIET_XSLTPROC	= @echo '   ' XSLTPROC $@;
-	QUIET_GEN	= @echo '   ' GEN $@;
+	QUIET_ASCIIDOC	= @echo '  ASCIIDOC '$@;
+	QUIET_XMLTO	= @echo '  XMLTO    '$@;
+	QUIET_DB2TEXI	= @echo '  DB2TEXI  '$@;
+	QUIET_MAKEINFO	= @echo '  MAKEINFO '$@;
+	QUIET_DBLATEX	= @echo '  DBLATEX  '$@;
+	QUIET_XSLTPROC	= @echo '  XSLTPROC '$@;
+	QUIET_GEN	= @echo '  GEN      '$@;
 	QUIET_STDERR	= 2> /dev/null
 	QUIET_SUBDIR0	= +@subdir=
-	QUIET_SUBDIR1	= ;$(NO_SUBDIR) echo '   ' SUBDIR $$subdir; \
+	QUIET_SUBDIR1	= ;$(NO_SUBDIR) \
+			   echo '  SUBDIR   ' $$subdir; \
 			  $(MAKE) $(PRINT_DIR) -C $$subdir
 	export V
 endif
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 9580ebe260e0..5aa3d040bbf3 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -38,7 +38,7 @@ ifneq ($(O),)
 endif
 
 define print_msg
-  @printf '    BUILD: Doing '\''make \033[33m-j'$(JOBS)'\033[m'\'' parallel build\n'
+  @printf '  BUILD:   Doing '\''make \033[33m-j'$(JOBS)'\033[m'\'' parallel build\n'
 endef
 
 define make
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 250b276c136f..f91bd5a9b50a 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -784,7 +784,7 @@ TRACK_CFLAGS = $(subst ','\'',$(CFLAGS)):\
 $(OUTPUT)PERF-CFLAGS: .FORCE-PERF-CFLAGS
 	@FLAGS='$(TRACK_CFLAGS)'; \
 	    if test x"$$FLAGS" != x"`cat $(OUTPUT)PERF-CFLAGS 2>/dev/null`" ; then \
-		echo 1>&2 "    * new build flags or prefix"; \
+		echo 1>&2 "  FLAGS:   * new build flags or prefix"; \
 		echo "$$FLAGS" >$(OUTPUT)PERF-CFLAGS; \
             fi
 
diff --git a/tools/scripts/Makefile.include b/tools/scripts/Makefile.include
index 1853736c8106..ee76544deecb 100644
--- a/tools/scripts/Makefile.include
+++ b/tools/scripts/Makefile.include
@@ -59,21 +59,22 @@ QUIET_SUBDIR0  = +$(MAKE) $(COMMAND_O) -C # space to separate -C and subdir
 QUIET_SUBDIR1  =
 
 ifneq ($(findstring $(MAKEFLAGS),s),s)
-ifneq ($(V),1)
-	QUIET_CC       = @echo '   ' CC $@;
-	QUIET_AR       = @echo '   ' AR $@;
-	QUIET_LINK     = @echo '   ' LINK $@;
-	QUIET_MKDIR    = @echo '   ' MKDIR $@;
-	QUIET_GEN      = @echo '   ' GEN $@;
+  ifneq ($(V),1)
+	QUIET_CC       = @echo '  CC       '$@;
+	QUIET_AR       = @echo '  AR       '$@;
+	QUIET_LINK     = @echo '  LINK     '$@;
+	QUIET_MKDIR    = @echo '  MKDIR    '$@;
+	QUIET_GEN      = @echo '  GEN      '$@;
 	QUIET_SUBDIR0  = +@subdir=
-	QUIET_SUBDIR1  = ;$(NO_SUBDIR) echo '  ' SUBDIR $$subdir; \
+	QUIET_SUBDIR1  = ;$(NO_SUBDIR) \
+			  echo '  SUBDIR   '$$subdir; \
 			 $(MAKE) $(PRINT_DIR) -C $$subdir
-	QUIET_FLEX     = @echo '   ' FLEX $@;
-	QUIET_BISON    = @echo '   ' BISON $@;
+	QUIET_FLEX     = @echo '  FLEX     '$@;
+	QUIET_BISON    = @echo '  BISON    '$@;
 
 	descend = \
-		+@echo '   ' DESCEND $(1); \
+		+@echo	       '  DESCEND  '$(1); \
 		mkdir -p $(OUTPUT)$(1) && \
 		$(MAKE) $(COMMAND_O) subdir=$(if $(subdir),$(subdir)/$(1),$(1)) $(PRINT_DIR) -C $(1) $(2)
-endif
+  endif
 endif
-- 
cgit 


From 3fae82db558468c01f36eb6398e9459ac240e697 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 9 Oct 2013 11:49:28 +0200
Subject: perf tools: Align perf version output to other build messages

Before:

  CC util/pmu.o
  CC util/parse-events.o
PERF_VERSION = 3.12.rc4.g1b30c
  CC util/parse-events-flex.o
  GEN perf-archive

After:

  CC util/pmu.o
  CC util/parse-events.o
  PERF_VERSION = 3.12.rc4.g1b30c
  CC util/parse-events-flex.o
  GEN perf-archive

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1381312169-17354-4-git-send-email-mingo@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/PERF-VERSION-GEN | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/PERF-VERSION-GEN b/tools/perf/util/PERF-VERSION-GEN
index 15a77b7c0e36..ce7a804b2951 100755
--- a/tools/perf/util/PERF-VERSION-GEN
+++ b/tools/perf/util/PERF-VERSION-GEN
@@ -40,7 +40,7 @@ else
 	VC=unset
 fi
 test "$VN" = "$VC" || {
-	echo >&2 "PERF_VERSION = $VN"
+	echo >&2 "  PERF_VERSION = $VN"
 	echo "#define PERF_VERSION \"$VN\"" >$GVF
 }
 
-- 
cgit 


From 8a5411e9a3e65ab70b094022e5aa6deaec82ae7c Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 9 Oct 2013 11:49:29 +0200
Subject: perf tools: Implement summary output for 'make install'

'make install' used to show all the install lines, which is way too
verbose to be really informative to the user.

Implement summary output instead:

  comet:~/tip/tools/perf> make install
    BUILD:   Doing 'make -j12' parallel build
    SUBDIR   Documentation
    INSTALL  Documentation-man
    INSTALL  binaries
    INSTALL  libexec
    INSTALL  perf-archive
    INSTALL  perl-scripts
    INSTALL  python-scripts
    INSTALL  bash_completion-script
    INSTALL  tests

'make install V=1' will still show the old, detailed output.

Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: http://lkml.kernel.org/r/1381312169-17354-5-git-send-email-mingo@kernel.org
[ Fixed conflict with libperf-gtk patches in acme/perf/core, cope with 'trace' alias ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/Makefile | 27 +++++++++++---------
 tools/perf/Makefile.perf          | 54 ++++++++++++++++++++++-----------------
 tools/perf/config/utilities.mak   |  3 ++-
 3 files changed, 48 insertions(+), 36 deletions(-)

diff --git a/tools/perf/Documentation/Makefile b/tools/perf/Documentation/Makefile
index c4c300cf155f..3ba1c0b09908 100644
--- a/tools/perf/Documentation/Makefile
+++ b/tools/perf/Documentation/Makefile
@@ -184,12 +184,13 @@ ifdef missing_tools
 endif
 
 do-install-man: man
-	$(INSTALL) -d -m 755 $(DESTDIR)$(man1dir)
-#	$(INSTALL) -d -m 755 $(DESTDIR)$(man5dir)
-#	$(INSTALL) -d -m 755 $(DESTDIR)$(man7dir)
-	$(INSTALL) -m 644 $(DOC_MAN1) $(DESTDIR)$(man1dir)
-#	$(INSTALL) -m 644 $(DOC_MAN5) $(DESTDIR)$(man5dir)
-#	$(INSTALL) -m 644 $(DOC_MAN7) $(DESTDIR)$(man7dir)
+	$(call QUIET_INSTALL, Documentation-man) \
+		$(INSTALL) -d -m 755 $(DESTDIR)$(man1dir); \
+#		$(INSTALL) -d -m 755 $(DESTDIR)$(man5dir); \
+#		$(INSTALL) -d -m 755 $(DESTDIR)$(man7dir); \
+		$(INSTALL) -m 644 $(DOC_MAN1) $(DESTDIR)$(man1dir); \
+#		$(INSTALL) -m 644 $(DOC_MAN5) $(DESTDIR)$(man5dir); \
+#		$(INSTALL) -m 644 $(DOC_MAN7) $(DESTDIR)$(man7dir)
 
 install-man: check-man-tools man
 
@@ -202,18 +203,20 @@ endif
 try-install-man: $(DO_INSTALL_MAN)
 
 install-info: info
-	$(INSTALL) -d -m 755 $(DESTDIR)$(infodir)
-	$(INSTALL) -m 644 $(OUTPUT)perf.info $(OUTPUT)perfman.info $(DESTDIR)$(infodir)
+	$(call QUIET_INSTALL, Documentation-info) \
+		$(INSTALL) -d -m 755 $(DESTDIR)$(infodir); \
+		$(INSTALL) -m 644 $(OUTPUT)perf.info $(OUTPUT)perfman.info $(DESTDIR)$(infodir); \
 	if test -r $(DESTDIR)$(infodir)/dir; then \
-	  $(INSTALL_INFO) --info-dir=$(DESTDIR)$(infodir) perf.info ;\
-	  $(INSTALL_INFO) --info-dir=$(DESTDIR)$(infodir) perfman.info ;\
+		$(INSTALL_INFO) --info-dir=$(DESTDIR)$(infodir) perf.info ;\
+		$(INSTALL_INFO) --info-dir=$(DESTDIR)$(infodir) perfman.info ;\
 	else \
 	  echo "No directory found in $(DESTDIR)$(infodir)" >&2 ; \
 	fi
 
 install-pdf: pdf
-	$(INSTALL) -d -m 755 $(DESTDIR)$(pdfdir)
-	$(INSTALL) -m 644 $(OUTPUT)user-manual.pdf $(DESTDIR)$(pdfdir)
+	$(call QUIET_INSTALL, Documentation-pdf) \
+		$(INSTALL) -d -m 755 $(DESTDIR)$(pdfdir); \
+		$(INSTALL) -m 644 $(OUTPUT)user-manual.pdf $(DESTDIR)$(pdfdir)
 
 #install-html: html
 #	'$(SHELL_PATH_SQ)' ./install-webdoc.sh $(DESTDIR)$(htmldir)
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index f91bd5a9b50a..c873e039aafb 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -504,8 +504,9 @@ ifndef NO_GTK2
   GTK_OBJS += $(OUTPUT)ui/gtk/annotate.o
 
 install-gtk: $(OUTPUT)libperf-gtk.so
-	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(libdir_SQ)'
-	$(INSTALL) $(OUTPUT)libperf-gtk.so '$(DESTDIR_SQ)$(libdir_SQ)'
+	$(call QUIET_INSTALL, 'GTK UI') \
+		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(libdir_SQ)'; \
+		$(INSTALL) $(OUTPUT)libperf-gtk.so '$(DESTDIR_SQ)$(libdir_SQ)'
 endif
 
 ifndef NO_LIBPERL
@@ -810,31 +811,38 @@ check: $(OUTPUT)common-cmds.h
 install-gtk:
 
 install-bin: all install-gtk
-	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(bindir_SQ)'
-	$(INSTALL) $(OUTPUT)perf '$(DESTDIR_SQ)$(bindir_SQ)'
-	$(LN) '$(DESTDIR_SQ)$(bindir_SQ)/perf' '$(DESTDIR_SQ)$(bindir_SQ)/trace'
-	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
-	$(INSTALL) $(OUTPUT)perf-archive -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
+	$(call QUIET_INSTALL, binaries) \
+		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(bindir_SQ)'; \
+		$(INSTALL) $(OUTPUT)perf '$(DESTDIR_SQ)$(bindir_SQ)'; \
+		$(LN) '$(DESTDIR_SQ)$(bindir_SQ)/perf' '$(DESTDIR_SQ)$(bindir_SQ)/trace'
+	$(call QUIET_INSTALL, libexec) \
+		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
+	$(call QUIET_INSTALL, perf-archive) \
+		$(INSTALL) $(OUTPUT)perf-archive -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)'
 ifndef NO_LIBPERL
-	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/Perf-Trace-Util/lib/Perf/Trace'
-	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/bin'
-	$(INSTALL) scripts/perl/Perf-Trace-Util/lib/Perf/Trace/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/Perf-Trace-Util/lib/Perf/Trace'
-	$(INSTALL) scripts/perl/*.pl -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl'
-	$(INSTALL) scripts/perl/bin/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/bin'
+	$(call QUIET_INSTALL, perl-scripts) \
+		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/Perf-Trace-Util/lib/Perf/Trace'; \
+		$(INSTALL) scripts/perl/Perf-Trace-Util/lib/Perf/Trace/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/Perf-Trace-Util/lib/Perf/Trace'; \
+		$(INSTALL) scripts/perl/*.pl -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl'; \
+		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/bin'; \
+		$(INSTALL) scripts/perl/bin/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/perl/bin'
 endif
 ifndef NO_LIBPYTHON
-	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/Perf-Trace-Util/lib/Perf/Trace'
-	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/bin'
-	$(INSTALL) scripts/python/Perf-Trace-Util/lib/Perf/Trace/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/Perf-Trace-Util/lib/Perf/Trace'
-	$(INSTALL) scripts/python/*.py -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python'
-	$(INSTALL) scripts/python/bin/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/bin'
+	$(call QUIET_INSTALL, python-scripts) \
+		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/Perf-Trace-Util/lib/Perf/Trace'; \
+		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/bin'; \
+		$(INSTALL) scripts/python/Perf-Trace-Util/lib/Perf/Trace/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/Perf-Trace-Util/lib/Perf/Trace'; \
+		$(INSTALL) scripts/python/*.py -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python'; \
+		$(INSTALL) scripts/python/bin/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/bin'
 endif
-	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(sysconfdir_SQ)/bash_completion.d'
-	$(INSTALL) bash_completion '$(DESTDIR_SQ)$(sysconfdir_SQ)/bash_completion.d/perf'
-	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests'
-	$(INSTALL) tests/attr.py '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests'
-	$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/attr'
-	$(INSTALL) tests/attr/* '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/attr'
+	$(call QUIET_INSTALL, bash_completion-script) \
+		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(sysconfdir_SQ)/bash_completion.d'; \
+		$(INSTALL) bash_completion '$(DESTDIR_SQ)$(sysconfdir_SQ)/bash_completion.d/perf'
+	$(call QUIET_INSTALL, tests) \
+		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests'; \
+		$(INSTALL) tests/attr.py '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests'; \
+		$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/attr'; \
+		$(INSTALL) tests/attr/* '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/tests/attr'
 
 install: install-bin try-install-man
 
diff --git a/tools/perf/config/utilities.mak b/tools/perf/config/utilities.mak
index 94908a5fbea7..f168debc5be2 100644
--- a/tools/perf/config/utilities.mak
+++ b/tools/perf/config/utilities.mak
@@ -181,6 +181,7 @@ _gea_err  = $(if $(1),$(error Please set '$(1)' appropriately))
 
 ifneq ($(findstring $(MAKEFLAGS),s),s)
   ifneq ($(V),1)
-    QUIET_CLEAN      = @printf '  CLEAN %s\n' $(1);
+    QUIET_CLEAN		= @printf '  CLEAN    %s\n' $1;
+    QUIET_INSTALL	= @printf '  INSTALL  %s\n' $1;
   endif
 endif
-- 
cgit 


From d366c53e1d4fc9d7a5826fd82010b3cffaabe5f1 Mon Sep 17 00:00:00 2001
From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Thu, 3 Oct 2013 14:45:16 +0530
Subject: perf timechart: Add example in the documentation

While at it, update the synopsis to show both forms.

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@gmail.com>
Link: http://lkml.kernel.org/r/1380791716-10325-1-git-send-email-artagnon@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-timechart.txt | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/tools/perf/Documentation/perf-timechart.txt b/tools/perf/Documentation/perf-timechart.txt
index 1632b0efc757..3ff8bd4f0b4d 100644
--- a/tools/perf/Documentation/perf-timechart.txt
+++ b/tools/perf/Documentation/perf-timechart.txt
@@ -8,7 +8,8 @@ perf-timechart - Tool to visualize total system behavior during a workload
 SYNOPSIS
 --------
 [verse]
-'perf timechart' {record}
+'perf timechart' record <command>
+'perf timechart' [<options>]
 
 DESCRIPTION
 -----------
@@ -41,6 +42,18 @@ OPTIONS
 --symfs=<directory>::
         Look for files with symbols relative to this directory.
 
+EXAMPLES
+--------
+
+$ perf timechart record git pull
+
+  [ perf record: Woken up 13 times to write data ]
+  [ perf record: Captured and wrote 4.253 MB perf.data (~185801 samples) ]
+
+$ perf timechart
+
+  Written 10.2 seconds of trace to output.svg.
+
 SEE ALSO
 --------
 linkperf:perf-record[1]
-- 
cgit 


From bd4e301bda41d525b2d40267f0bf89dadc2b2c4a Mon Sep 17 00:00:00 2001
From: Joseph Lo <josephl@nvidia.com>
Date: Fri, 11 Oct 2013 17:57:05 +0800
Subject: ARM: tegra: enable Tegra RTC as default for Tegra124

This patch makes the Tegra RTC enabled as default for Tegra124 platform.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/boot/dts/tegra124.dtsi | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
index 905f14839947..f8242488de53 100644
--- a/arch/arm/boot/dts/tegra124.dtsi
+++ b/arch/arm/boot/dts/tegra124.dtsi
@@ -81,7 +81,6 @@
 		compatible = "nvidia,tegra124-rtc", "nvidia,tegra20-rtc";
 		reg = <0x7000e000 0x100>;
 		interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
-		status = "disabled";
 	};
 
 	pmc@7000e400 {
-- 
cgit 


From bef64738e3fb87eabc6fbeededad0c44ea173384 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 11 Oct 2013 08:23:19 -0700
Subject: Bluetooth: Make LE scan interval and window a controller option

The scan interval and window for LE passive scanning and connection
establishment should be configurable on a per controller basis. So
introduce a setting that later on will allow modifying it.

This setting does not affect LE active scanning during device
discovery phase. As long as that phase uses interleaved discovery,
it will continuously scan.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h | 2 ++
 net/bluetooth/hci_conn.c         | 4 ++--
 net/bluetooth/hci_core.c         | 3 +++
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 0e01dc257880..690045498420 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -164,6 +164,8 @@ struct hci_dev {
 	__u16		page_scan_interval;
 	__u16		page_scan_window;
 	__u8		page_scan_type;
+	__u16		le_scan_interval;
+	__u16		le_scan_window;
 
 	__u16		devid_source;
 	__u16		devid_vendor;
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 139587159200..c52bfb7e44fd 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -562,8 +562,8 @@ static int hci_create_le_conn(struct hci_conn *conn)
 	hci_req_init(&req, hdev);
 
 	memset(&cp, 0, sizeof(cp));
-	cp.scan_interval = __constant_cpu_to_le16(0x0060);
-	cp.scan_window = __constant_cpu_to_le16(0x0030);
+	cp.scan_interval = cpu_to_le16(hdev->le_scan_interval);
+	cp.scan_window = cpu_to_le16(hdev->le_scan_window);
 	bacpy(&cp.peer_addr, &conn->dst);
 	cp.peer_addr_type = conn->dst_type;
 	if (bacmp(&hdev->bdaddr, BDADDR_ANY))
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index a097a623912a..1910dc2d33cf 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2273,6 +2273,9 @@ struct hci_dev *hci_alloc_dev(void)
 	hdev->sniff_max_interval = 800;
 	hdev->sniff_min_interval = 80;
 
+	hdev->le_scan_interval = 0x0060;
+	hdev->le_scan_window = 0x0030;
+
 	mutex_init(&hdev->lock);
 	mutex_init(&hdev->req_lock);
 
-- 
cgit 


From 14b49b9a49f0d80ef9a3ce7991b373f93016f5e4 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 11 Oct 2013 08:23:20 -0700
Subject: Bluetooth: Add management command for setting LE scan parameters

The scan interval and window parameters are used for LE passive
background scanning and connection establishment. This allows
userspace to change the values.

These two values should be kept in sync with whatever is used for
the scan parameters service on remote devices. And it puts the
controlling daemon (for example bluetoothd) in charge of setting
the values.

Main use case would be to switch between two sets of values. One
for foreground applications and one for background applications.

At this moment, the values are only used for manual connection
establishment, but soon that should be extended to background
scanning and automatic connection establishment.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/mgmt.h |  7 +++++++
 net/bluetooth/mgmt.c         | 38 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+)

diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index 2ad433bb9a2e..518c5c84e39a 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -362,6 +362,13 @@ struct mgmt_cp_set_static_address {
 } __packed;
 #define MGMT_SET_STATIC_ADDRESS_SIZE	6
 
+#define MGMT_OP_SET_SCAN_PARAMS		0x002C
+struct mgmt_cp_set_scan_params {
+	__le16	interval;
+	__le16	window;
+} __packed;
+#define MGMT_SET_SCAN_PARAMS_SIZE	4
+
 #define MGMT_EV_CMD_COMPLETE		0x0001
 struct mgmt_ev_cmd_complete {
 	__le16	opcode;
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 143dd7319981..f57ec19547af 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3374,6 +3374,43 @@ static int set_static_address(struct sock *sk, struct hci_dev *hdev,
 	return err;
 }
 
+static int set_scan_params(struct sock *sk, struct hci_dev *hdev,
+			   void *data, u16 len)
+{
+	struct mgmt_cp_set_scan_params *cp = data;
+	__u16 interval, window;
+	int err;
+
+	BT_DBG("%s", hdev->name);
+
+	if (!lmp_le_capable(hdev))
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
+				  MGMT_STATUS_NOT_SUPPORTED);
+
+	interval = __le16_to_cpu(cp->interval);
+
+	if (interval < 0x0004 || interval > 0x4000)
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
+				  MGMT_STATUS_INVALID_PARAMS);
+
+	window = __le16_to_cpu(cp->window);
+
+	if (window < 0x0004 || window > 0x4000)
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
+				  MGMT_STATUS_INVALID_PARAMS);
+
+	hci_dev_lock(hdev);
+
+	hdev->le_scan_interval = interval;
+	hdev->le_scan_window = window;
+
+	err = cmd_complete(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS, 0, NULL, 0);
+
+	hci_dev_unlock(hdev);
+
+	return err;
+}
+
 static void fast_connectable_complete(struct hci_dev *hdev, u8 status)
 {
 	struct pending_cmd *cmd;
@@ -3710,6 +3747,7 @@ static const struct mgmt_handler {
 	{ set_advertising,        false, MGMT_SETTING_SIZE },
 	{ set_bredr,              false, MGMT_SETTING_SIZE },
 	{ set_static_address,     false, MGMT_SET_STATIC_ADDRESS_SIZE },
+	{ set_scan_params,        false, MGMT_SET_SCAN_PARAMS_SIZE },
 };
 
 
-- 
cgit 


From 79b39f7918559da88be9463fc8b6674dd1ca2896 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Fri, 11 Oct 2013 09:20:54 -0700
Subject: ARM: OMAP2+: Use pdata quirks for wl12xx for omap3 evm and zoom3

As the wl12xx bindings are still pending, this way we can
get things working for omap3 evm and zoom platforms.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/pdata-quirks.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index 18afbde020f7..10c71450cf63 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -82,6 +82,16 @@ static void __init omap3_igep0020_legacy_init(void)
 {
 	omap3_igep2_display_init_of();
 }
+
+static void __init omap3_evm_legacy_init(void)
+{
+	legacy_init_wl12xx(WL12XX_REFCLOCK_38, 0, 149);
+}
+
+static void __init omap3_zoom_legacy_init(void)
+{
+	legacy_init_wl12xx(WL12XX_REFCLOCK_26, 0, 162);
+}
 #endif /* CONFIG_ARCH_OMAP3 */
 
 #ifdef CONFIG_ARCH_OMAP4
@@ -132,6 +142,8 @@ static struct pdata_init pdata_quirks[] __initdata = {
 	{ "nokia,omap3-n9", hsmmc2_internal_input_clk, },
 	{ "nokia,omap3-n950", hsmmc2_internal_input_clk, },
 	{ "isee,omap3-igep0020", omap3_igep0020_legacy_init, },
+	{ "ti,omap3-evm-37xx", omap3_evm_legacy_init, },
+	{ "ti,omap3-zoom3", omap3_zoom_legacy_init, },
 #endif
 #ifdef CONFIG_ARCH_OMAP4
 	{ "ti,omap4-sdp", omap4_sdp_legacy_init, },
-- 
cgit 


From f2bf0e72d000e76c4a9904cc8230cb2e659a2db4 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Fri, 11 Oct 2013 09:21:26 -0700
Subject: ARM: OMAP2+: Add minimal 8250 support for GPMC

Just initialize things using the bootloader timings like
we've been doing for the legacy booting too. It should be
possible to patch in the GPMC timings for the based on the
TL16CP743C/TL16C754C manual at:

http://www.ti.com/lit/ds/slls644g/slls644g.pdf

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/gpmc.c | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index 579697adaae7..51525faa0aec 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -1521,6 +1521,42 @@ err:
 	return ret;
 }
 
+/*
+ * REVISIT: Add timing support from slls644g.pdf
+ */
+static int gpmc_probe_8250(struct platform_device *pdev,
+				struct device_node *child)
+{
+	struct resource res;
+	unsigned long base;
+	int ret, cs;
+
+	if (of_property_read_u32(child, "reg", &cs) < 0) {
+		dev_err(&pdev->dev, "%s has no 'reg' property\n",
+			child->full_name);
+		return -ENODEV;
+	}
+
+	if (of_address_to_resource(child, 0, &res) < 0) {
+		dev_err(&pdev->dev, "%s has malformed 'reg' property\n",
+			child->full_name);
+		return -ENODEV;
+	}
+
+	ret = gpmc_cs_request(cs, resource_size(&res), &base);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "cannot request GPMC CS %d\n", cs);
+		return ret;
+	}
+
+	if (of_platform_device_create(child, NULL, &pdev->dev))
+		return 0;
+
+	dev_err(&pdev->dev, "failed to create gpmc child %s\n", child->name);
+
+	return -ENODEV;
+}
+
 static int gpmc_probe_dt(struct platform_device *pdev)
 {
 	int ret;
@@ -1564,6 +1600,8 @@ static int gpmc_probe_dt(struct platform_device *pdev)
 		else if (of_node_cmp(child->name, "ethernet") == 0 ||
 			 of_node_cmp(child->name, "nor") == 0)
 			ret = gpmc_probe_generic_child(pdev, child);
+		else if (of_node_cmp(child->name, "8250") == 0)
+			ret = gpmc_probe_8250(pdev, child);
 
 		if (WARN(ret < 0, "%s: probing gpmc child %s failed\n",
 			 __func__, child->full_name))
-- 
cgit 


From fb23ba55eaa603279744565caf26a7f64e370517 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Fri, 11 Oct 2013 09:18:20 -0700
Subject: ARM: OMAP2+: Run make savedefconfig on omap2plus_defconfig to shrink
 it

We can save few tens of lines this way, and it is easier
to generate minimal patches against omap2plus_defconfig.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/configs/omap2plus_defconfig | 92 ++++++++++++------------------------
 1 file changed, 30 insertions(+), 62 deletions(-)

diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig
index 254cf0539439..9549d6f29b50 100644
--- a/arch/arm/configs/omap2plus_defconfig
+++ b/arch/arm/configs/omap2plus_defconfig
@@ -1,14 +1,13 @@
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
 CONFIG_BSD_PROCESS_ACCT=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=16
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_EXPERT=y
-# CONFIG_SYSCTL_SYSCALL is not set
-CONFIG_KALLSYMS_EXTRA_PASS=y
 CONFIG_SLAB=y
 CONFIG_PROFILING=y
 CONFIG_OPROFILE=y
@@ -20,22 +19,21 @@ CONFIG_MODULE_FORCE_UNLOAD=y
 CONFIG_MODVERSIONS=y
 CONFIG_MODULE_SRCVERSION_ALL=y
 # CONFIG_BLK_DEV_BSG is not set
+CONFIG_PARTITION_ADVANCED=y
 CONFIG_ARCH_MULTI_V6=y
-CONFIG_ARCH_OMAP2PLUS=y
+CONFIG_OMAP_RESET_CLOCKS=y
+CONFIG_OMAP_MUX_DEBUG=y
 CONFIG_ARCH_OMAP2=y
 CONFIG_ARCH_OMAP3=y
 CONFIG_ARCH_OMAP4=y
+CONFIG_SOC_OMAP5=y
 CONFIG_SOC_AM33XX=y
-CONFIG_OMAP_RESET_CLOCKS=y
-CONFIG_OMAP_MUX_DEBUG=y
-CONFIG_ARCH_VEXPRESS_CA9X4=y
+CONFIG_SOC_DRA7XX=y
 CONFIG_ARM_THUMBEE=y
 CONFIG_ARM_ERRATA_411920=y
-CONFIG_NO_HZ=y
-CONFIG_HIGH_RES_TIMERS=y
 CONFIG_SMP=y
 CONFIG_NR_CPUS=2
-CONFIG_LEDS=y
+CONFIG_CMA=y
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
 CONFIG_ARM_APPENDED_DTB=y
@@ -61,8 +59,6 @@ CONFIG_IP_PNP_RARP=y
 # CONFIG_IPV6 is not set
 CONFIG_NETFILTER=y
 CONFIG_CAN=m
-CONFIG_CAN_RAW=m
-CONFIG_CAN_BCM=m
 CONFIG_CAN_C_CAN=m
 CONFIG_CAN_C_CAN_PLATFORM=m
 CONFIG_BT=m
@@ -77,14 +73,12 @@ CONFIG_MAC80211=m
 CONFIG_MAC80211_RC_PID=y
 CONFIG_MAC80211_RC_DEFAULT_PID=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
-CONFIG_CMA=y
-CONFIG_DMA_CMA=y
-CONFIG_CONNECTOR=y
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_DMA_CMA=y
+CONFIG_CONNECTOR=y
 CONFIG_MTD=y
 CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_OOPS=y
 CONFIG_MTD_CFI=y
@@ -98,32 +92,32 @@ CONFIG_MTD_UBI=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=16384
-CONFIG_SENSORS_LIS3LV02D=m
 CONFIG_SENSORS_TSL2550=m
-CONFIG_SENSORS_LIS3_I2C=m
 CONFIG_BMP085_I2C=m
+CONFIG_SENSORS_LIS3_I2C=m
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_SCSI_MULTI_LUN=y
 CONFIG_SCSI_SCAN_ASYNC=y
 CONFIG_MD=y
 CONFIG_NETDEVICES=y
-CONFIG_SMSC_PHY=y
-CONFIG_NET_ETHERNET=y
-CONFIG_SMC91X=y
-CONFIG_SMSC911X=y
 CONFIG_KS8851=y
 CONFIG_KS8851_MLL=y
-CONFIG_LIBERTAS=m
-CONFIG_LIBERTAS_USB=m
-CONFIG_LIBERTAS_SDIO=m
-CONFIG_LIBERTAS_DEBUG=y
+CONFIG_SMC91X=y
+CONFIG_SMSC911X=y
+CONFIG_TI_CPSW=y
+CONFIG_AT803X_PHY=y
+CONFIG_SMSC_PHY=y
 CONFIG_USB_USBNET=y
 CONFIG_USB_NET_SMSC95XX=y
 CONFIG_USB_ALI_M5632=y
 CONFIG_USB_AN2720=y
 CONFIG_USB_EPSON2888=y
 CONFIG_USB_KC2190=y
+CONFIG_LIBERTAS=m
+CONFIG_LIBERTAS_USB=m
+CONFIG_LIBERTAS_SDIO=m
+CONFIG_LIBERTAS_DEBUG=y
 CONFIG_INPUT_JOYDEV=y
 CONFIG_INPUT_EVDEV=y
 CONFIG_KEYBOARD_GPIO=y
@@ -133,7 +127,6 @@ CONFIG_INPUT_TOUCHSCREEN=y
 CONFIG_TOUCHSCREEN_ADS7846=y
 CONFIG_INPUT_MISC=y
 CONFIG_INPUT_TWL4030_PWRBUTTON=y
-CONFIG_VT_HW_CONSOLE_BINDING=y
 # CONFIG_LEGACY_PTYS is not set
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
@@ -143,8 +136,6 @@ CONFIG_SERIAL_8250_MANY_PORTS=y
 CONFIG_SERIAL_8250_SHARE_IRQ=y
 CONFIG_SERIAL_8250_DETECT_IRQ=y
 CONFIG_SERIAL_8250_RSA=y
-CONFIG_SERIAL_AMBA_PL011=y
-CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
 CONFIG_SERIAL_OMAP=y
 CONFIG_SERIAL_OMAP_CONSOLE=y
 CONFIG_HW_RANDOM=y
@@ -158,31 +149,29 @@ CONFIG_GPIO_TWL4030=y
 CONFIG_W1=y
 CONFIG_POWER_SUPPLY=y
 CONFIG_SENSORS_LM75=m
-CONFIG_WATCHDOG=y
 CONFIG_THERMAL=y
-CONFIG_THERMAL_HWMON=y
-CONFIG_THERMAL_DEFAULT_GOV_STEP_WISE=y
 CONFIG_THERMAL_GOV_FAIR_SHARE=y
-CONFIG_THERMAL_GOV_STEP_WISE=y
 CONFIG_THERMAL_GOV_USER_SPACE=y
-CONFIG_CPU_THERMAL=y
+CONFIG_TI_SOC_THERMAL=y
+CONFIG_OMAP4_THERMAL=y
+CONFIG_OMAP5_THERMAL=y
+CONFIG_DRA752_THERMAL=y
+CONFIG_WATCHDOG=y
 CONFIG_OMAP_WATCHDOG=y
 CONFIG_TWL4030_WATCHDOG=y
 CONFIG_MFD_TPS65217=y
 CONFIG_MFD_TPS65910=y
 CONFIG_TWL6040_CORE=y
-CONFIG_REGULATOR_TWL4030=y
 CONFIG_REGULATOR_TPS65023=y
 CONFIG_REGULATOR_TPS6507X=y
 CONFIG_REGULATOR_TPS65217=y
 CONFIG_REGULATOR_TPS65910=y
+CONFIG_REGULATOR_TWL4030=y
 CONFIG_FB=y
 CONFIG_FIRMWARE_EDID=y
 CONFIG_FB_MODE_HELPERS=y
 CONFIG_FB_TILEBLITTING=y
-CONFIG_FB_OMAP_LCD_VGA=y
 CONFIG_OMAP2_DSS=m
-CONFIG_OMAP2_DSS_RFBI=y
 CONFIG_OMAP2_DSS_SDI=y
 CONFIG_OMAP2_DSS_DSI=y
 CONFIG_FB_OMAP2=m
@@ -194,12 +183,8 @@ CONFIG_DISPLAY_PANEL_DPI=m
 CONFIG_BACKLIGHT_LCD_SUPPORT=y
 CONFIG_LCD_CLASS_DEVICE=y
 CONFIG_LCD_PLATFORM=y
-CONFIG_DISPLAY_SUPPORT=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
-CONFIG_FONTS=y
-CONFIG_FONT_8x8=y
-CONFIG_FONT_8x16=y
 CONFIG_LOGO=y
 CONFIG_SOUND=m
 CONFIG_SND=m
@@ -216,13 +201,10 @@ CONFIG_SND_OMAP_SOC_OMAP3_PANDORA=m
 CONFIG_USB=y
 CONFIG_USB_DEBUG=y
 CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
-CONFIG_USB_DEVICEFS=y
 CONFIG_USB_MON=y
 CONFIG_USB_WDM=y
 CONFIG_USB_STORAGE=y
-CONFIG_USB_LIBUSUAL=y
 CONFIG_USB_TEST=y
-CONFIG_USB_PHY=y
 CONFIG_NOP_USB_XCEIV=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DEBUG=y
@@ -232,7 +214,6 @@ CONFIG_USB_ZERO=m
 CONFIG_MMC=y
 CONFIG_MMC_UNSAFE_RESUME=y
 CONFIG_SDIO_UART=y
-CONFIG_MMC_ARMMMCI=y
 CONFIG_MMC_OMAP=y
 CONFIG_MMC_OMAP_HS=y
 CONFIG_NEW_LEDS=y
@@ -252,11 +233,6 @@ CONFIG_RTC_DRV_OMAP=y
 CONFIG_DMADEVICES=y
 CONFIG_TI_EDMA=y
 CONFIG_DMA_OMAP=y
-CONFIG_TI_SOC_THERMAL=y
-CONFIG_TI_THERMAL=y
-CONFIG_OMAP4_THERMAL=y
-CONFIG_OMAP5_THERMAL=y
-CONFIG_DRA752_THERMAL=y
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
 # CONFIG_EXT3_FS_XATTR is not set
@@ -275,23 +251,18 @@ CONFIG_JFFS2_RUBIN=y
 CONFIG_UBIFS_FS=y
 CONFIG_CRAMFS=y
 CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
 CONFIG_NFS_V3_ACL=y
 CONFIG_NFS_V4=y
 CONFIG_ROOT_NFS=y
-CONFIG_PARTITION_ADVANCED=y
 CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_ISO8859_1=y
 CONFIG_PRINTK_TIME=y
+CONFIG_DEBUG_INFO=y
 CONFIG_MAGIC_SYSRQ=y
-CONFIG_DEBUG_KERNEL=y
 CONFIG_SCHEDSTATS=y
 CONFIG_TIMER_STATS=y
 CONFIG_PROVE_LOCKING=y
-CONFIG_DEBUG_SPINLOCK_SLEEP=y
 # CONFIG_DEBUG_BUGVERBOSE is not set
-CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_SECURITY=y
 CONFIG_CRYPTO_MICHAEL_MIC=y
 # CONFIG_CRYPTO_ANSI_CPRNG is not set
@@ -300,9 +271,6 @@ CONFIG_CRC_T10DIF=y
 CONFIG_CRC_ITU_T=y
 CONFIG_CRC7=y
 CONFIG_LIBCRC32C=y
-CONFIG_SOC_OMAP5=y
-CONFIG_TI_DAVINCI_MDIO=y
-CONFIG_TI_DAVINCI_CPDMA=y
-CONFIG_TI_CPSW=y
-CONFIG_AT803X_PHY=y
-CONFIG_SOC_DRA7XX=y
+CONFIG_FONTS=y
+CONFIG_FONT_8x8=y
+CONFIG_FONT_8x16=y
-- 
cgit 


From 487e5f2868f16101eb0681ef4781e0c3dc0027b8 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Fri, 11 Oct 2013 09:18:21 -0700
Subject: ARM: OMAP2+: Add WLAN modules and of_serial to omap2plus_defconfig

Many boards have either WL12XX or MWIFIEX, so let's
build modules for those by default. This also makes it
easier to test WLAN on pandaboard to avoid regressions
like we had with the move to device tree based booting.

And at least the zoom boards need the of_serial for the
UARTs connected to the GPMC bus.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/configs/omap2plus_defconfig | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig
index 9549d6f29b50..dad68166520f 100644
--- a/arch/arm/configs/omap2plus_defconfig
+++ b/arch/arm/configs/omap2plus_defconfig
@@ -118,6 +118,14 @@ CONFIG_LIBERTAS=m
 CONFIG_LIBERTAS_USB=m
 CONFIG_LIBERTAS_SDIO=m
 CONFIG_LIBERTAS_DEBUG=y
+CONFIG_WL_TI=y
+CONFIG_WL12XX=m
+CONFIG_WL18XX=m
+CONFIG_WLCORE_SPI=m
+CONFIG_WLCORE_SDIO=m
+CONFIG_MWIFIEX=m
+CONFIG_MWIFIEX_SDIO=m
+CONFIG_MWIFIEX_USB=m
 CONFIG_INPUT_JOYDEV=y
 CONFIG_INPUT_EVDEV=y
 CONFIG_KEYBOARD_GPIO=y
@@ -136,6 +144,7 @@ CONFIG_SERIAL_8250_MANY_PORTS=y
 CONFIG_SERIAL_8250_SHARE_IRQ=y
 CONFIG_SERIAL_8250_DETECT_IRQ=y
 CONFIG_SERIAL_8250_RSA=y
+CONFIG_SERIAL_OF_PLATFORM=y
 CONFIG_SERIAL_OMAP=y
 CONFIG_SERIAL_OMAP_CONSOLE=y
 CONFIG_HW_RANDOM=y
-- 
cgit 


From e300376d3c3a1ed473bd7312ec74aace8f7cd2f0 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 11 Oct 2013 19:06:12 +0200
Subject: gpio: tc3589x: drop references to "virtual" IRQ

Rename the argument "virq" to just "irq", this IRQ isn't any
more "virtual" than any other Linux IRQ number, we use "hwirq"
for the actual hw-numbers, "virq" is just bogus.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-tc3589x.c | 36 ++++++++++++++++++------------------
 1 file changed, 18 insertions(+), 18 deletions(-)

diff --git a/drivers/gpio/gpio-tc3589x.c b/drivers/gpio/gpio-tc3589x.c
index 4a5de273c230..ddb5fefaa715 100644
--- a/drivers/gpio/gpio-tc3589x.c
+++ b/drivers/gpio/gpio-tc3589x.c
@@ -96,27 +96,27 @@ static int tc3589x_gpio_direction_input(struct gpio_chip *chip,
 }
 
 /**
- * tc3589x_gpio_irq_get_virq(): Map an interrupt on a chip to a virtual IRQ
+ * tc3589x_gpio_irq_get_irq(): Map a hardware IRQ on a chip to a Linux IRQ
  *
  * @tc3589x_gpio: tc3589x_gpio_irq controller to operate on.
- * @irq: index of the interrupt requested in the chip IRQs
+ * @irq: index of the hardware interrupt requested in the chip IRQs
  *
  * Useful for drivers to request their own IRQs.
  */
-static int tc3589x_gpio_irq_get_virq(struct tc3589x_gpio *tc3589x_gpio,
-				     int irq)
+static int tc3589x_gpio_irq_get_irq(struct tc3589x_gpio *tc3589x_gpio,
+				     int hwirq)
 {
 	if (!tc3589x_gpio)
 		return -EINVAL;
 
-	return irq_create_mapping(tc3589x_gpio->domain, irq);
+	return irq_create_mapping(tc3589x_gpio->domain, hwirq);
 }
 
 static int tc3589x_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
 {
 	struct tc3589x_gpio *tc3589x_gpio = to_tc3589x_gpio(chip);
 
-	return tc3589x_gpio_irq_get_virq(tc3589x_gpio, offset);
+	return tc3589x_gpio_irq_get_irq(tc3589x_gpio, offset);
 }
 
 static struct gpio_chip template_chip = {
@@ -242,9 +242,9 @@ static irqreturn_t tc3589x_gpio_irq(int irq, void *dev)
 		while (stat) {
 			int bit = __ffs(stat);
 			int line = i * 8 + bit;
-			int virq = tc3589x_gpio_irq_get_virq(tc3589x_gpio, line);
+			int irq = tc3589x_gpio_irq_get_irq(tc3589x_gpio, line);
 
-			handle_nested_irq(virq);
+			handle_nested_irq(irq);
 			stat &= ~(1 << bit);
 		}
 
@@ -254,31 +254,31 @@ static irqreturn_t tc3589x_gpio_irq(int irq, void *dev)
 	return IRQ_HANDLED;
 }
 
-static int tc3589x_gpio_irq_map(struct irq_domain *d, unsigned int virq,
+static int tc3589x_gpio_irq_map(struct irq_domain *d, unsigned int irq,
 				irq_hw_number_t hwirq)
 {
 	struct tc3589x *tc3589x_gpio = d->host_data;
 
-	irq_set_chip_data(virq, tc3589x_gpio);
-	irq_set_chip_and_handler(virq, &tc3589x_gpio_irq_chip,
+	irq_set_chip_data(irq, tc3589x_gpio);
+	irq_set_chip_and_handler(irq, &tc3589x_gpio_irq_chip,
 				handle_simple_irq);
-	irq_set_nested_thread(virq, 1);
+	irq_set_nested_thread(irq, 1);
 #ifdef CONFIG_ARM
-	set_irq_flags(virq, IRQF_VALID);
+	set_irq_flags(irq, IRQF_VALID);
 #else
-	irq_set_noprobe(virq);
+	irq_set_noprobe(irq);
 #endif
 
 	return 0;
 }
 
-static void tc3589x_gpio_irq_unmap(struct irq_domain *d, unsigned int virq)
+static void tc3589x_gpio_irq_unmap(struct irq_domain *d, unsigned int irq)
 {
 #ifdef CONFIG_ARM
-	set_irq_flags(virq, 0);
+	set_irq_flags(irq, 0);
 #endif
-	irq_set_chip_and_handler(virq, NULL, NULL);
-	irq_set_chip_data(virq, NULL);
+	irq_set_chip_and_handler(irq, NULL, NULL);
+	irq_set_chip_data(irq, NULL);
 }
 
 static struct irq_domain_ops tc3589x_irq_ops = {
-- 
cgit 


From 3a6afbd2171a1e92c22d1a9eb54adf1474d938f1 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 11 Oct 2013 09:44:12 -0700
Subject: Bluetooth: Fix endless loop with HCI_QUIRK_RESET_ON_CLOSE

Really early versions of the Bluetooth specification were unclear
with the behavior of HCI Reset for USB devices. They assumed that
also an USB reset needs to be issued. Later Bluetooth specifications
cleared this out and it is safe to call HCI Reset without affecting
the transport.

For old devices that misbehave, the HCI_QUIRK_RESET_ON_CLOSE quirk
was introduced to postpone the HCI Reset until the device was no
longer in use.

One of these devices is the Digianswer BPA-105 Bluetooth Protocol
Analyzer. The only problem now is that with the quirk set, the
HCI Reset is also executed at the end of the setup phase. So the
controller gets configured and then it disconnects from the USB
bus, connects again, gets configured and of course disconnects
again. This game goes on forever.

For devices that need HCI_QUIRK_RESET_ON_CLOSE it is important
that the HCI Reset is not executed after the setup phase. In
specific when HCI_AUTO_OFF is set, do not call HCI Reset when
closing the device.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 1910dc2d33cf..8f70a35b4d0e 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1378,6 +1378,7 @@ static int hci_dev_do_close(struct hci_dev *hdev)
 	skb_queue_purge(&hdev->cmd_q);
 	atomic_set(&hdev->cmd_cnt, 1);
 	if (!test_bit(HCI_RAW, &hdev->flags) &&
+	    !test_bit(HCI_AUTO_OFF, &hdev->dev_flags) &&
 	    test_bit(HCI_QUIRK_RESET_ON_CLOSE, &hdev->quirks)) {
 		set_bit(HCI_INIT, &hdev->flags);
 		__hci_req_sync(hdev, hci_reset_req, 0, HCI_CMD_TIMEOUT);
-- 
cgit 


From a82974c9f4ed07b89715d0695ff41379116fd622 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 11 Oct 2013 09:48:47 -0700
Subject: Bluetooth: Don't advertise high speed support without SSP

It is not allowed to enable high speed support when Secure Simple
Pairing is not available or disabled.

However the support for high speed gets advertised on a controller
that does not even support Secure Simple Pairing. Since there is
no way to enable high speed support on such a controller, do not
even advertise its support.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index f57ec19547af..aa59490044aa 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -363,9 +363,6 @@ static u32 get_supported_settings(struct hci_dev *hdev)
 	settings |= MGMT_SETTING_POWERED;
 	settings |= MGMT_SETTING_PAIRABLE;
 
-	if (lmp_ssp_capable(hdev))
-		settings |= MGMT_SETTING_SSP;
-
 	if (lmp_bredr_capable(hdev)) {
 		settings |= MGMT_SETTING_CONNECTABLE;
 		if (hdev->hci_ver >= BLUETOOTH_VER_1_2)
@@ -373,7 +370,11 @@ static u32 get_supported_settings(struct hci_dev *hdev)
 		settings |= MGMT_SETTING_DISCOVERABLE;
 		settings |= MGMT_SETTING_BREDR;
 		settings |= MGMT_SETTING_LINK_SECURITY;
-		settings |= MGMT_SETTING_HS;
+
+		if (lmp_ssp_capable(hdev)) {
+			settings |= MGMT_SETTING_SSP;
+			settings |= MGMT_SETTING_HS;
+		}
 	}
 
 	if (lmp_le_capable(hdev)) {
-- 
cgit 


From c63a164271f81220ff4966d41218a9101f3d0ec4 Mon Sep 17 00:00:00 2001
From: Jovi Zhangwei <jovi.zhangwei@gmail.com>
Date: Wed, 9 Oct 2013 07:47:51 -0700
Subject: staging: ktap: add to the kernel tree

This patch introduces ktap to staging tree.

ktap is a new script-based dynamic tracing tool for Linux,
it uses a scripting language and lets users trace the
Linux kernel dynamically. ktap is designed to give
operational insights with interoperability that allow
users to tune, troubleshoot and extend kernel and application.
It's similar with Linux Systemtap and Solaris Dtrace.

ktap have different design principles from Linux mainstream
dynamic tracing language in that it's based on bytecode,
so it doesn't depend upon GCC, doesn't require compiling
kernel module for each script, safe to use in production
environment, fulfilling the embedded ecosystem's tracing needs.

See ktap tutorial for more information:
    http://www.ktap.org/doc/tutorial.html

The merit of putting this software in staging tree is
to make it more possible to get feedback from users
and thus polish the code.

Signed-off-by: Jovi Zhangwei <jovi.zhangwei@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 MAINTAINERS                                        |    7 +
 drivers/staging/Kconfig                            |    2 +
 drivers/staging/Makefile                           |    1 +
 drivers/staging/ktap/Kconfig                       |   21 +
 drivers/staging/ktap/Makefile                      |  101 ++
 drivers/staging/ktap/README.md                     |  144 ++
 drivers/staging/ktap/doc/tutorial.md               |  552 ++++++
 drivers/staging/ktap/include/ktap.h                |  169 ++
 drivers/staging/ktap/include/ktap_opcodes.h        |  240 +++
 drivers/staging/ktap/include/ktap_types.h          |  674 +++++++
 drivers/staging/ktap/interpreter/ktap.c            |  235 +++
 drivers/staging/ktap/interpreter/library/ansilib.c |  153 ++
 drivers/staging/ktap/interpreter/library/baselib.c |  455 +++++
 drivers/staging/ktap/interpreter/library/kdebug.c  |  450 +++++
 drivers/staging/ktap/interpreter/library/timer.c   |  192 ++
 drivers/staging/ktap/interpreter/loader.c          |  310 ++++
 drivers/staging/ktap/interpreter/object.c          |  483 +++++
 drivers/staging/ktap/interpreter/opcode.c          |  127 ++
 drivers/staging/ktap/interpreter/strfmt.c          |  196 ++
 drivers/staging/ktap/interpreter/table.c           | 1292 +++++++++++++
 drivers/staging/ktap/interpreter/transport.c       |  636 +++++++
 drivers/staging/ktap/interpreter/tstring.c         |  287 +++
 drivers/staging/ktap/interpreter/vm.c              | 1369 ++++++++++++++
 drivers/staging/ktap/scripts/basic/backtrace.kp    |    6 +
 .../staging/ktap/scripts/basic/event_trigger.kp    |   24 +
 .../ktap/scripts/basic/event_trigger_ftrace.kp     |   28 +
 drivers/staging/ktap/scripts/basic/ftrace.kp       |    6 +
 .../staging/ktap/scripts/basic/function_time.kp    |   57 +
 drivers/staging/ktap/scripts/basic/kretprobe.kp    |    6 +
 drivers/staging/ktap/scripts/game/tetris.kp        |  328 ++++
 drivers/staging/ktap/scripts/helloworld.kp         |    3 +
 .../staging/ktap/scripts/interrupt/hardirq_time.kp |   25 +
 .../staging/ktap/scripts/interrupt/softirq_time.kp |   25 +
 .../staging/ktap/scripts/io/kprobes-do-sys-open.kp |   20 +
 drivers/staging/ktap/scripts/io/traceio.kp         |   56 +
 drivers/staging/ktap/scripts/mem/kmalloc-top.kp    |   17 +
 drivers/staging/ktap/scripts/mem/kmem.kp           |   30 +
 .../ktap/scripts/profiling/function_profiler.kp    |   41 +
 .../ktap/scripts/profiling/stack_profile.kp        |   26 +
 .../ktap/scripts/schedule/sched_transition.kp      |    5 +
 .../staging/ktap/scripts/schedule/schedtimes.kp    |  125 ++
 drivers/staging/ktap/scripts/syscalls/errinfo.kp   |  145 ++
 drivers/staging/ktap/scripts/syscalls/sctop.kp     |   14 +
 drivers/staging/ktap/scripts/syscalls/syscalls.kp  |    6 +
 .../ktap/scripts/syscalls/syscalls_count.kp        |   56 +
 .../scripts/syscalls/syscalls_count_by_proc.kp     |   24 +
 .../staging/ktap/scripts/tracepoints/eventcount.kp |  212 +++
 .../ktap/scripts/tracepoints/eventcount_by_proc.kp |   59 +
 .../ktap/scripts/tracepoints/tracepoints.kp        |    6 +
 .../ktap/scripts/userspace/uprobes-malloc.kp       |    9 +
 drivers/staging/ktap/test/aggr_table.kp            |   50 +
 drivers/staging/ktap/test/ansi.kp                  |   20 +
 drivers/staging/ktap/test/arg.kp                   |   24 +
 drivers/staging/ktap/test/arith.kp                 |   27 +
 drivers/staging/ktap/test/bench/sembench.c         |  556 ++++++
 drivers/staging/ktap/test/bench/test.sh            |   25 +
 drivers/staging/ktap/test/concat.kp                |   15 +
 drivers/staging/ktap/test/count.kp                 |   20 +
 drivers/staging/ktap/test/fibonacci.kp             |   36 +
 drivers/staging/ktap/test/function.kp              |   88 +
 drivers/staging/ktap/test/if.kp                    |   24 +
 drivers/staging/ktap/test/kprobe.kp                |   14 +
 drivers/staging/ktap/test/kretprobe.kp             |   14 +
 drivers/staging/ktap/test/len.kp                   |   25 +
 drivers/staging/ktap/test/looping.kp               |   40 +
 drivers/staging/ktap/test/pairs.kp                 |   45 +
 drivers/staging/ktap/test/run_test.sh              |   58 +
 drivers/staging/ktap/test/table.kp                 |   71 +
 drivers/staging/ktap/test/timer.kp                 |   28 +
 drivers/staging/ktap/test/tracepoint.kp            |   22 +
 drivers/staging/ktap/test/zerodivide.kp            |    5 +
 drivers/staging/ktap/userspace/code.c              |  968 ++++++++++
 drivers/staging/ktap/userspace/dump.c              |  187 ++
 drivers/staging/ktap/userspace/eventdef.c          |  588 ++++++
 drivers/staging/ktap/userspace/ktapc.h             |  376 ++++
 drivers/staging/ktap/userspace/ktapio.c            |  108 ++
 drivers/staging/ktap/userspace/lex.c               |  622 +++++++
 drivers/staging/ktap/userspace/main.c              |  609 +++++++
 drivers/staging/ktap/userspace/parser.c            | 1910 ++++++++++++++++++++
 drivers/staging/ktap/userspace/util.c              |  346 ++++
 80 files changed, 16376 insertions(+)
 create mode 100644 drivers/staging/ktap/Kconfig
 create mode 100644 drivers/staging/ktap/Makefile
 create mode 100644 drivers/staging/ktap/README.md
 create mode 100644 drivers/staging/ktap/doc/tutorial.md
 create mode 100644 drivers/staging/ktap/include/ktap.h
 create mode 100644 drivers/staging/ktap/include/ktap_opcodes.h
 create mode 100644 drivers/staging/ktap/include/ktap_types.h
 create mode 100644 drivers/staging/ktap/interpreter/ktap.c
 create mode 100644 drivers/staging/ktap/interpreter/library/ansilib.c
 create mode 100644 drivers/staging/ktap/interpreter/library/baselib.c
 create mode 100644 drivers/staging/ktap/interpreter/library/kdebug.c
 create mode 100644 drivers/staging/ktap/interpreter/library/timer.c
 create mode 100644 drivers/staging/ktap/interpreter/loader.c
 create mode 100644 drivers/staging/ktap/interpreter/object.c
 create mode 100644 drivers/staging/ktap/interpreter/opcode.c
 create mode 100644 drivers/staging/ktap/interpreter/strfmt.c
 create mode 100644 drivers/staging/ktap/interpreter/table.c
 create mode 100644 drivers/staging/ktap/interpreter/transport.c
 create mode 100644 drivers/staging/ktap/interpreter/tstring.c
 create mode 100644 drivers/staging/ktap/interpreter/vm.c
 create mode 100644 drivers/staging/ktap/scripts/basic/backtrace.kp
 create mode 100644 drivers/staging/ktap/scripts/basic/event_trigger.kp
 create mode 100644 drivers/staging/ktap/scripts/basic/event_trigger_ftrace.kp
 create mode 100644 drivers/staging/ktap/scripts/basic/ftrace.kp
 create mode 100644 drivers/staging/ktap/scripts/basic/function_time.kp
 create mode 100644 drivers/staging/ktap/scripts/basic/kretprobe.kp
 create mode 100644 drivers/staging/ktap/scripts/game/tetris.kp
 create mode 100644 drivers/staging/ktap/scripts/helloworld.kp
 create mode 100644 drivers/staging/ktap/scripts/interrupt/hardirq_time.kp
 create mode 100644 drivers/staging/ktap/scripts/interrupt/softirq_time.kp
 create mode 100644 drivers/staging/ktap/scripts/io/kprobes-do-sys-open.kp
 create mode 100644 drivers/staging/ktap/scripts/io/traceio.kp
 create mode 100644 drivers/staging/ktap/scripts/mem/kmalloc-top.kp
 create mode 100644 drivers/staging/ktap/scripts/mem/kmem.kp
 create mode 100644 drivers/staging/ktap/scripts/profiling/function_profiler.kp
 create mode 100644 drivers/staging/ktap/scripts/profiling/stack_profile.kp
 create mode 100644 drivers/staging/ktap/scripts/schedule/sched_transition.kp
 create mode 100644 drivers/staging/ktap/scripts/schedule/schedtimes.kp
 create mode 100644 drivers/staging/ktap/scripts/syscalls/errinfo.kp
 create mode 100644 drivers/staging/ktap/scripts/syscalls/sctop.kp
 create mode 100644 drivers/staging/ktap/scripts/syscalls/syscalls.kp
 create mode 100644 drivers/staging/ktap/scripts/syscalls/syscalls_count.kp
 create mode 100644 drivers/staging/ktap/scripts/syscalls/syscalls_count_by_proc.kp
 create mode 100644 drivers/staging/ktap/scripts/tracepoints/eventcount.kp
 create mode 100644 drivers/staging/ktap/scripts/tracepoints/eventcount_by_proc.kp
 create mode 100644 drivers/staging/ktap/scripts/tracepoints/tracepoints.kp
 create mode 100644 drivers/staging/ktap/scripts/userspace/uprobes-malloc.kp
 create mode 100644 drivers/staging/ktap/test/aggr_table.kp
 create mode 100644 drivers/staging/ktap/test/ansi.kp
 create mode 100644 drivers/staging/ktap/test/arg.kp
 create mode 100644 drivers/staging/ktap/test/arith.kp
 create mode 100644 drivers/staging/ktap/test/bench/sembench.c
 create mode 100644 drivers/staging/ktap/test/bench/test.sh
 create mode 100644 drivers/staging/ktap/test/concat.kp
 create mode 100644 drivers/staging/ktap/test/count.kp
 create mode 100644 drivers/staging/ktap/test/fibonacci.kp
 create mode 100644 drivers/staging/ktap/test/function.kp
 create mode 100644 drivers/staging/ktap/test/if.kp
 create mode 100644 drivers/staging/ktap/test/kprobe.kp
 create mode 100644 drivers/staging/ktap/test/kretprobe.kp
 create mode 100644 drivers/staging/ktap/test/len.kp
 create mode 100644 drivers/staging/ktap/test/looping.kp
 create mode 100644 drivers/staging/ktap/test/pairs.kp
 create mode 100644 drivers/staging/ktap/test/run_test.sh
 create mode 100644 drivers/staging/ktap/test/table.kp
 create mode 100644 drivers/staging/ktap/test/timer.kp
 create mode 100644 drivers/staging/ktap/test/tracepoint.kp
 create mode 100644 drivers/staging/ktap/test/zerodivide.kp
 create mode 100644 drivers/staging/ktap/userspace/code.c
 create mode 100644 drivers/staging/ktap/userspace/dump.c
 create mode 100644 drivers/staging/ktap/userspace/eventdef.c
 create mode 100644 drivers/staging/ktap/userspace/ktapc.h
 create mode 100644 drivers/staging/ktap/userspace/ktapio.c
 create mode 100644 drivers/staging/ktap/userspace/lex.c
 create mode 100644 drivers/staging/ktap/userspace/main.c
 create mode 100644 drivers/staging/ktap/userspace/parser.c
 create mode 100644 drivers/staging/ktap/userspace/util.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 0ad4692c2820..500c8fa86133 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4748,6 +4748,13 @@ S:	Maintained
 F:	Documentation/hwmon/k8temp
 F:	drivers/hwmon/k8temp.c
 
+KTAP
+M:	zhangwei(Jovi) <jovi.zhangwei@gmail.com>
+W:	http://www.ktap.org
+L:	ktap@freelists.org
+S:	Maintained
+F:	drivers/staging/ktap/
+
 KCONFIG
 M:	Michal Marek <mmarek@suse.cz>
 L:	linux-kbuild@vger.kernel.org
diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 3bfdaa8d80a9..3b1501b7d894 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -150,4 +150,6 @@ source "drivers/staging/dgnc/Kconfig"
 
 source "drivers/staging/dgap/Kconfig"
 
+source "drivers/staging/ktap/Kconfig"
+
 endif # STAGING
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index b0d3303b4680..2270ed077bde 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -67,3 +67,4 @@ obj-$(CONFIG_XILLYBUS)		+= xillybus/
 obj-$(CONFIG_DGNC)			+= dgnc/
 obj-$(CONFIG_DGAP)			+= dgap/
 obj-$(CONFIG_MTD_SPINAND_MT29F)	+= mt29f_spinand/
+obj-$(CONFIG_KTAP)		+= ktap/
diff --git a/drivers/staging/ktap/Kconfig b/drivers/staging/ktap/Kconfig
new file mode 100644
index 000000000000..21f8d2ed03b9
--- /dev/null
+++ b/drivers/staging/ktap/Kconfig
@@ -0,0 +1,21 @@
+config KTAP
+	tristate "a programable dynamic tracing tool for Linux"
+	depends on PERF_EVENTS && EVENT_TRACING
+	default n
+	help
+	  ktap is a new script-based dynamic tracing tool for Linux,
+	  it uses a scripting language and lets users trace the
+	  Linux kernel dynamically. ktap is designed to give
+	  operational insights with interoperability that allow
+	  users to tune, troubleshoot and extend kernel and application.
+	  It's similar with Linux Systemtap and Solaris Dtrace.
+
+	  ktap have different design principles from Linux mainstream
+	  dynamic tracing language in that it's based on bytecode,
+	  so it doesn't depend upon GCC, doesn't require compiling
+	  kernel module for each script, safe to use in production
+	  environment, fulfilling the embedded ecosystem's tracing needs.
+
+	  See ktap tutorial for more information:
+	      http://www.ktap.org/doc/tutorial.html
+
diff --git a/drivers/staging/ktap/Makefile b/drivers/staging/ktap/Makefile
new file mode 100644
index 000000000000..e2e54baf36d9
--- /dev/null
+++ b/drivers/staging/ktap/Makefile
@@ -0,0 +1,101 @@
+
+# Do not instrument the tracer itself:
+ifdef CONFIG_FUNCTION_TRACER
+ORIG_CFLAGS := $(KBUILD_CFLAGS)
+KBUILD_CFLAGS = $(subst -pg,,$(ORIG_CFLAGS))
+endif
+
+all: mod ktap
+
+INTP = interpreter
+
+LIBDIR = $(INTP)/library
+
+LIB_OBJS += $(LIBDIR)/baselib.o $(LIBDIR)/kdebug.o $(LIBDIR)/timer.o \
+		$(LIBDIR)/ansilib.o
+
+INTP_OBJS += $(INTP)/ktap.o $(INTP)/loader.o $(INTP)/object.o \
+		$(INTP)/tstring.o $(INTP)/table.o $(INTP)/vm.o \
+		$(INTP)/opcode.o $(INTP)/strfmt.o $(INTP)/transport.o \
+		$(LIB_OBJS)
+
+obj-m		+= ktapvm.o
+ktapvm-y	:= $(INTP_OBJS)
+
+KVERSION ?= $(shell uname -r)
+KERNEL_SRC ?= /lib/modules/$(KVERSION)/build
+mod:
+	$(MAKE) -C $(KERNEL_SRC) M=$(PWD) modules
+
+modules_install:
+	$(MAKE) -C $(KERNEL_SRC) M=$(PWD) modules_install
+
+KTAPC_CFLAGS = -Wall -O2
+
+UDIR = userspace
+
+$(UDIR)/lex.o: $(UDIR)/lex.c
+	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
+$(UDIR)/parser.o: $(UDIR)/parser.c
+	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
+$(UDIR)/code.o: $(UDIR)/code.c
+	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
+$(UDIR)/dump.o: $(UDIR)/dump.c
+	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
+$(UDIR)/main.o: $(UDIR)/main.c
+	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
+$(UDIR)/util.o: $(UDIR)/util.c
+	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
+$(UDIR)/ktapio.o: $(UDIR)/ktapio.c
+	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
+$(UDIR)/eventdef.o: $(UDIR)/eventdef.c
+	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
+$(UDIR)/opcode.o: $(INTP)/opcode.c
+	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
+$(UDIR)/table.o: $(INTP)/table.c
+	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
+$(UDIR)/tstring.o: $(INTP)/tstring.c
+	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
+$(UDIR)/object.o: $(INTP)/object.c
+	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
+
+KTAPOBJS =
+KTAPOBJS += $(UDIR)/lex.o
+KTAPOBJS += $(UDIR)/parser.o
+KTAPOBJS += $(UDIR)/code.o
+KTAPOBJS += $(UDIR)/dump.o
+KTAPOBJS += $(UDIR)/main.o
+KTAPOBJS += $(UDIR)/util.o
+KTAPOBJS += $(UDIR)/ktapio.o
+KTAPOBJS += $(UDIR)/eventdef.o
+KTAPOBJS += $(UDIR)/opcode.o
+KTAPOBJS += $(UDIR)/table.o
+KTAPOBJS += $(UDIR)/tstring.o
+KTAPOBJS += $(UDIR)/object.o
+
+ktap: $(KTAPOBJS)
+	$(QUIET_LINK)$(CC) $(KTAPC_CFLAGS) -o $@ $(KTAPOBJS) -lpthread
+
+KMISC := /lib/modules/$(KVERSION)/ktapvm/
+
+install: mod ktap
+	install -d $(KMISC)
+	install -m 644 -c *.ko /lib/modules/$(KVERSION)/ktapvm/
+	/sbin/depmod -a
+
+load:
+	insmod ktapvm.ko
+
+unload:
+	rmmod ktapvm
+
+test: FORCE
+	cd test; sh ./run_test.sh; cd -
+
+clean:
+	$(MAKE) -C $(KERNEL_SRC) M=$(PWD) clean
+	$(RM) ktap
+
+PHONY += FORCE
+FORCE:
+
diff --git a/drivers/staging/ktap/README.md b/drivers/staging/ktap/README.md
new file mode 100644
index 000000000000..c8ddd5fa66c6
--- /dev/null
+++ b/drivers/staging/ktap/README.md
@@ -0,0 +1,144 @@
+# ktap
+
+A New Scripting Dynamic Tracing Tool For Linux  
+[www.ktap.org][homepage]
+
+ktap is a new scripting dynamic tracing tool for Linux,
+it uses a scripting language and lets users trace the Linux kernel dynamically.
+ktap is designed to give operational insights with interoperability
+that allows users to tune, troubleshoot and extend kernel and application.
+It's similar with Linux Systemtap and Solaris Dtrace.
+
+ktap have different design principles from Linux mainstream dynamic tracing
+language in that it's based on bytecode, so it doesn't depend upon GCC,
+doesn't require compiling kernel module for each script, safe to use in
+production environment, fulfilling the embedded ecosystem's tracing needs.
+
+More information can be found at [ktap homepage][homepage].
+
+[homepage]: http://www.ktap.org
+
+## Highlights
+
+  * simple but powerful scripting language
+  * register based interpreter (heavily optimized) in Linux kernel
+  * small and lightweight (6KLOC of interpreter)
+  * not depend on gcc for each script running
+  * easy to use in embedded environment without debugging info
+  * support for tracepoint, kprobe, uprobe, function trace, timer, and more
+  * supported in x86, arm, ppc, mips
+  * safety in sandbox
+
+## Building & Running
+
+1. Clone ktap from github
+
+        $ git clone http://github.com/ktap/ktap.git
+
+2. Compiling ktap
+
+        $ cd ktap
+        $ make       #generate ktapvm kernel module and ktap binary
+
+3. Load ktapvm kernel module(make sure debugfs mounted)
+
+        $ make load  #need to be root or have sudo access
+
+4. Running ktap
+
+        $ ./ktap scripts/helloworld.kp
+
+
+## Examples
+
+1. simplest one-liner command to enable all tracepoints
+
+        ktap -e "trace *:* { print(argevent) }"
+
+2. syscall tracing on target process
+
+        ktap -e "trace syscalls:* { print(argevent) }" -- ls
+
+3. function tracing
+
+        ktap -e "trace ftrace:function { print(argevent) }"
+
+        ktap -e "trace ftrace:function /ip==mutex*/ { print(argevent) }"
+
+4. simple syscall tracing
+
+        trace syscalls:* {
+                print(cpu(), pid(), execname(), argevent)
+        }
+
+5. syscall tracing in histogram style
+
+        s = {}
+
+        trace syscalls:sys_enter_* {
+                s[argname] += 1
+        }
+
+        trace_end {
+                histogram(s)
+        }
+
+6. kprobe tracing
+
+        trace probe:do_sys_open dfd=%di fname=%dx flags=%cx mode=+4($stack) {
+                print("entry:", execname(), argevent)
+        }
+
+        trace probe:do_sys_open%return fd=$retval {
+                print("exit:", execname(), argevent)
+        }
+
+7. uprobe tracing
+
+        trace probe:/lib/libc.so.6:0x000773c0 {
+                print("entry:", execname(), argevent)
+        }
+
+        trace probe:/lib/libc.so.6:0x000773c0%return {
+                print("exit:", execname(), argevent)
+        }
+
+8. timer
+
+        tick-1ms {
+                printf("time fired on one cpu\n");
+        }
+
+        profile-2s {
+                printf("time fired on every cpu\n");
+        }
+
+More sample scripts can be found at scripts/ directory.
+
+## Mailing list
+
+ktap@freelists.org  
+You can subscribe to ktap mailing list at link (subscribe before posting):
+http://www.freelists.org/list/ktap
+
+
+## Copyright and License
+
+ktap is licensed under GPL v2
+
+Copyright (C) 2012-2013, Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+All rights reserved.  
+
+
+## Contribution
+
+ktap is still under active development, so contributions are welcome.
+You are encouraged to report bugs, provide feedback, send feature request,
+or hack on it.
+
+
+## See More
+
+More info can be found at [documentation][tutorial]
+[tutorial]: http://www.ktap.org/doc/tutorial.html
+
diff --git a/drivers/staging/ktap/doc/tutorial.md b/drivers/staging/ktap/doc/tutorial.md
new file mode 100644
index 000000000000..3c32ce77a731
--- /dev/null
+++ b/drivers/staging/ktap/doc/tutorial.md
@@ -0,0 +1,552 @@
+% The ktap Tutorial
+
+# Introduction
+
+ktap is a new scripting dynamic tracing tool for linux
+
+ktap is a new scripting dynamic tracing tool for Linux,
+it uses a scripting language and lets users trace the Linux kernel dynamically.
+ktap is designed to give operational insights with interoperability
+that allows users to tune, troubleshoot and extend kernel and application.
+It's similar with Linux Systemtap and Solaris Dtrace.
+
+ktap have different design principles from Linux mainstream dynamic tracing
+language in that it's based on bytecode, so it doesn't depend upon GCC,
+doesn't require compiling kernel module for each script, safe to use in
+production environment, fulfilling the embedded ecosystem's tracing needs.
+
+Highlights features:
+
+* simple but powerful scripting language
+* register based interpreter (heavily optimized) in Linux kernel
+* small and lightweight (6KLOC of interpreter)
+* not depend on gcc for each script running
+* easy to use in embedded environment without debugging info
+* support for tracepoint, kprobe, uprobe, function trace, timer, and more
+* supported in x86, arm, ppc, mips
+* safety in sandbox
+
+
+# Getting started
+
+Requirements
+
+* Linux 3.1 or later(Need some kernel patches for kernel earlier than 3.1)
+* CONFIG_EVENT_TRACING enabled
+* CONFIG_PERF_EVENTS enabled
+* CONFIG_DEBUG_FS enabled  
+  (make sure debugfs mounted before insmod ktapvm  
+   mount debugfs: mount -t debugfs none /sys/kernel/debug/)
+
+Note that those configuration is always enabled in Linux distribution,
+like REHL, Fedora, Ubuntu, etc.
+
+1. Clone ktap from github
+
+        $ git clone http://github.com/ktap/ktap.git
+
+2. Compiling ktap
+
+        $ cd ktap
+        $ make       #generate ktapvm kernel module and ktap binary
+
+3. Load ktapvm kernel module(make sure debugfs mounted)
+
+        $ make load  #need to be root or have sudo access
+
+4. Running ktap
+
+        $ ./ktap scripts/helloworld.kp
+
+
+# Language basics
+
+## Syntax basics
+
+ktap's syntax is design on the mind of C language syntax friendly,
+to make it easy scripting by kernel developer.
+
+1. Variable declaration
+The biggest syntax differences with C is that ktap is a dynamic typed
+language, so you won't need add any variable type declaration, just
+use the variable.
+
+2. function
+All functions in ktap should use keyword "function" declaration
+
+3. comments
+The comments of ktap is starting from '#', long comments doesn't support now.
+
+4. others
+Don't need place any ';' at the ending of statement in ktap.
+ktap use free syntax style, so you can choose to use the ';' or not.
+
+ktap use nil as NULL, the result of any number operate on nil is nil.
+
+ktap don't have array structure, also don't have any pointer operation.
+
+## Control structures
+
+ktap if/else is same as C language.
+
+There have two method of for-loop in ktap:
+
+    for (i = init, limit, step) { body }
+
+this is same as below in C:
+
+    for (i = init; i < limit; i += step) { body }
+
+The next for-loop method is:
+
+    for (k, v in pairs(t)) { body }   # looping all elements of table
+
+Note that ktap don't have "continue" keyword, but C does.
+
+## Date structures
+
+Associative array is heavily used in ktap, it's also called by table.
+
+table declaration:
+
+    t = {}
+
+how to use table:  
+
+    t[1] = 1
+    t[1] = "xxx"
+    t["key"] = 10
+    t["key"] = "value"
+
+    for (k, v in pairs(t)) { body }   # looping all elements of table
+
+
+# Built in functions and librarys
+
+## Built in functions
+
+**print (...)**  
+Receives any number of arguments, and prints their values,
+print is not intended for formatted output, but only as a
+quick way to show a value, typically for debugging.
+For formatted output, use printf.
+
+**printf (fmt, ...)**  
+Similar with C printf, use for format string output.
+
+**pairs (t)**  
+Returns three values: the next function, the table t, and nil,
+so that the construction
+for (k,v in pairs(t)) { body }
+will iterate over all key-value pairs of table t.
+
+**len (t) /len (s)**  
+If the argument is string, return length of string,
+if the argument is table, return counts of table pairs.
+
+**in_interrupt ()**  
+checking is context is interrupt context
+  
+**exit ()**  
+quit ktap executing, similar with exit syscall
+
+**pid ()**  
+return current process pid
+
+**execname ()**  
+return current process exec name string
+
+**cpu ()**  
+return current cpu id
+
+**arch ()**  
+return machine architecture, like x86, arm, etc.
+
+**kernel_v ()**  
+return Linux kernel version string, like 3.9, etc.
+
+**user_string (addr)**  
+Receive userspace address, read string from userspace, return string.
+
+**histogram (t)**  
+Receive table, output table histogram to user.
+
+**curr_task_info (offset, fetch_bytes)**  
+fetch value in field offset of task_struct structure, argument fetch_bytes
+could be 4 or 8, if fetch_bytes is not given, default is 4.
+
+user may need to get field offset by gdb, for example:
+gdb vmlinux
+(gdb)p &(((struct task_struct *)0).prio)
+
+**print_backtrace ()**  
+print current task stack info
+
+
+## Librarys
+
+### Kdebug Library
+
+**kdebug.probe_by_id (event_ids, eventfun)**
+
+This function is underly representation of high level tracing primitive.
+event_ids is the id of all events, it's read from  
+/sys/kernel/debug/tracing/events/$SYS/$EVENT/id
+
+for multi-events tracing, the event_ids is concatenation of all id, for example:
+ "2 3 4", seperated by blank space.
+
+The second argument in above examples is a function:  
+function eventfun () { action }
+
+
+**kdebug.probe_end (endfunc)**  
+
+This function is used for invoking a function when tracing end, it will wait
+until user press CTRL+C to stop tracing, then ktap will call endfunc function, 
+user could show tracing results in that function, or do other things.
+
+
+### Timer Library
+
+
+
+# Linux tracing basics
+
+tracepoints, probe, timer  
+filters  
+above explaintion  
+Ring buffer
+
+# Tracing semantics in ktap
+
+## Tracing block
+
+**trace EVENTDEF /FILTER/ { ACTION }**
+
+This is the basic tracing block for ktap, you need to use a specific EVENTDEF
+string, and own event function.
+
+EVENTDEF is compatible with perf(see perf-list), with glob match, for example:
+
+	syscalls:*			trace all syscalls events
+	syscalls:sys_enter_*		trace all syscalls entry events
+	kmem:*				trace all kmem related events
+	sched:*				trace all sched related events
+	*:*				trace all tracepoints in system.
+
+All events are based on: /sys/kernel/debug/tracing/events/$SYS/$EVENT
+
+**trace_end { ACTION }**
+
+This is based on kdebug.probe_end function.
+
+## Tracing built-in variable  
+
+**argevent**  
+event object, you can print it by: print(argevent), it will print events
+into human readable string, the result is mostly same as each entry of
+/sys/kernel/debug/tracing/trace
+
+**argname**  
+event name, each event have a name associated with it.
+
+**arg1..9**  
+get argument 1..9 of event object.
+
+
+## Timer syntax
+
+**tick-Ns        { ACTION }**  
+**tick-Nsec      { ACTION }**  
+**tick-Nms       { ACTION }**  
+**tick-Nmsec     { ACTION }**  
+**tick-Nus       { ACTION }**  
+**tick-Nusec     { ACTION }**
+
+**profile-Ns     { ACTION }**  
+**profile-Nsec   { ACTION }**  
+**profile-Nms    { ACTION }**  
+**profile-Nmsec  { ACTION }**  
+**profile-Nus    { ACTION }**  
+**profile-Nusec  { ACTION }**  
+
+architecture overview picture reference(pnp format)  
+one-liners  
+simple event tracing
+
+# Advanced tracing pattern
+
+Aggregation/Histogram  
+thread local  
+flame graph
+
+# Overhead/Performance
+
+ktap have more fast boot time thant Systemtap(try the helloword script)  
+ktap have little memory usage than Systemtap  
+and some scripts show that ktap have a little overhead then Systemtap
+(we choosed two scripts to compare, function profile, stack profile.
+this is not means all scripts in Systemtap have big overhead than ktap)
+
+
+# FAQ
+
+**Q: Why use bytecode design?**  
+A: Using bytecode would be a clean and lightweight solution,
+   you don't need gcc toolchain to compile every scripts, all you
+   need is a ktapvm kernel modules and userspace tool called ktap.
+   Since its language virtual machine design, it have great portability,
+   suppose you are working at a multi-arch cluster, if you want to run
+   a tracing script on each board, you won't need cross-compile tracing
+   script onto all board, what you really need to do is use ktap tool
+   to run script just in time.
+
+   Bytecode based design also will make executing more safer, than native code
+   generation.
+
+   Reality already showing that SystemTap is not widely used in embedded Linux,
+   caused by problem of SystemTap's architecture design choice, it's a natural
+   design for Redhat and IBM, because Redhat/IBM is focusing on server area,
+   not embedded area.
+
+**Q: What's the differences with SystemTap and Dtrace?**  
+A: For SystemTap, the answer is already mentioned at above question,
+   SystemTap use translator design, for trade-off on performance with usability,
+   based on GCC, that's what ktap want to solve.
+
+   For Dtrace, one common design with Dtrace is also use bytecode, so basically
+   Dtrace and ktap is on the same road. There have some projects aim to porting
+   Dtrace from Solaris to Linux, but the process is still on the road, Dtrace
+   is rooted in Solaris, and there have many huge differences between Solaris
+   tracing infrastructure with Linux's.
+
+   Dtrace is based on D language, a language subset of C, it's a restricted
+   language, like without for-looping, for safty use in production system.
+   It seems that Dtrace for Linux only support x86 architecture, not work on
+   powerpc and arm/mips, obviously it's not suit for embedded Linux currently.
+
+   Dtrace use ctf as input for debuginfo handing, compare with vmlinux for
+   SystemTap.
+
+   On the license part, Dtrace is released as CDDL, which is incompatible with
+   GPL(this is why it's impossible to upstream Dtrace into mainline).
+
+**Q: Why use dynamically typed language? but not statically typed language?**  
+A: It's hard to say which one is more better than other, dynamically typed
+   language bring efficiency and fast prototype production, but loosing type
+   check at compiling phase, and easy to make mistake in runtime, also it's
+   need many runtime checking, In contrast, statically typed language win on
+   programing safety, and performance. Statically language would suit for
+   interoperate with kernel, as kernel is wrote mainly in C, Need to note that
+   SystemTap and Dtrace both is statically language.
+
+   ktap choose dynamically typed language as initial implementation.
+
+**Q: Why we need ktap for event tracing? There already have a built-in ftrace**  
+A: This also is a common question for all dynamic tracing tool, not only ktap.
+   ktap provide more flexibility than built-in tracing infrastructure. Suppose
+   you need print a global variable when tracepoint hit, or you want print
+   backtrace, even more, you want to store some info into associative array, and
+   display it in histogram style when tracing end, in these case, some of them
+   ftrace can take it, some of them ftrace can not.
+   Overall, ktap provide you with great flexibility to scripting your own trace
+   need.
+
+**Q: How about the performance? Is ktap slow?**  
+A: ktap is not slow, the bytecode is very high-level, based on lua, the language
+   virtual machine is register-based(compare with stack-based), with little
+   instruction, the table data structure is heavily optimized in ktapvm.
+   ktap use per-cpu allocation in many place, without global locking scheme,
+   it's very fast when executing tracepoint callback.
+   Performance benchmark showing that the overhead of ktap running is nearly
+   10%(store event name into associative array), compare with full speed
+   running without any tracepoint enabled.
+
+   ktap will optimize overhead all the time, hopefully the overhead will
+   decrease to little than 5%, even more.
+
+**Q: Why not porting a high level language implementation into kernel directly?
+   Like python/JVM?**  
+A: I take serious on the size of vm and memory footprint. Python vm is large,
+   it's not suit to embed into kernel, and python have some functionality
+   which we don't need.
+
+   The bytecode of other high level language is also big, ktap only have 32
+   bytecodes, python/java/erlang have nearly two hundred bytecodes.
+   There also have some problems when porting those language into kernel,
+   userspace programming have many differences with kernel programming,
+   like float numbers, handle sleeping code carefully in kernel, deadloop is
+   not allowed in kernel, multi-thread management, etc.., so it's impossible
+   to porting language implementation into kernel with little adaption work.
+
+**Q: What's the status of ktap now?**  
+A: Basically it works on x86-32, x86-64, powerpc, arm, it also could work for
+   other hardware architecture, but not proven yet(I don't have enough hardware
+   to test)
+   If you found some bug, fix it on you own programming skill, or report to me.
+
+**Q: How to hack ktap? I want to write some extensions onto ktap.**  
+A: welcome hacking.  
+   You can write your own library to fulfill your specific need,
+   you can write any script as you want.
+
+**Q: What's the plan of ktap? any roadmap?**  
+A: the current plan is deliver stable ktapvm kernel modules, more ktap script,
+   and bugfix.
+
+
+# References
+
+* [Linux Performance Analysis and Tools][LPAT]
+* [Dtrace Blog][dtraceblog]
+* [Dtrace User Guide][dug]
+* [LWN: ktap -- yet another kernel tracer][lwn]
+* [ktap introduction in LinuxCon Japan 2013][lcj]
+
+[LPAT]: http://www.brendangregg.com/Slides/SCaLE_Linux_Performance2013.pdf
+[dtraceblog]: http://dtrace.org/blogs/
+[dug]: http://docs.huihoo.com/opensolaris/dtrace-user-guide/html/index.html
+[lwn]: http://lwn.net/Articles/551314/
+[lcj]: http://events.linuxfoundation.org/sites/events/files/lcjpcojp13_zhangwei.pdf
+
+
+# History
+
+* ktap was invented at 2002
+* First RFC sent to LKML at 2012.12.31
+* The code was released in github at 2013.01.18
+* ktap released v0.1 at 2013.05.21
+* ktap released v0.2 at 2013.07.31
+
+For more release info, please look at RELEASES.txt in project root directory.
+
+# Sample scripts
+
+1. simplest one-liner command to enable all tracepoints
+
+        ktap -e "trace *:* { print(argevent) }"
+
+2. syscall tracing on target process
+
+        ktap -e "trace syscalls:* { print(argevent) }" -- ls
+
+3. function tracing
+
+        ktap -e "trace ftrace:function { print(argevent) }"
+
+        ktap -e "trace ftrace:function /ip==mutex*/ { print(argevent) }"
+
+4. simple syscall tracing
+
+        trace syscalls:* {
+                print(cpu(), pid(), execname(), argevent)
+        }
+
+5. syscall tracing in histogram style
+
+        s = {}
+
+        trace syscalls:sys_enter_* {
+                s[argname] += 1
+        }
+
+        trace_end {
+                histogram(s)
+        }
+
+6. kprobe tracing
+
+        trace probe:do_sys_open dfd=%di fname=%dx flags=%cx mode=+4($stack) {
+                print("entry:", execname(), argevent)
+        }
+
+        trace probe:do_sys_open%return fd=$retval {
+                print("exit:", execname(), argevent)
+        }
+
+7. uprobe tracing
+
+        trace probe:/lib/libc.so.6:0x000773c0 {
+                print("entry:", execname(), argevent)
+        }
+
+        trace probe:/lib/libc.so.6:0x000773c0%return {
+                print("exit:", execname(), argevent)
+        }
+
+8. timer
+
+        tick-1ms {
+                printf("time fired on one cpu\n");
+        }
+
+        profile-2s {
+                printf("time fired on every cpu\n");
+        }
+
+More sample scripts can be found at scripts/ directory.
+
+
+# Appendix
+
+Here is the complete syntax of ktap in extended BNF.
+(based on lua syntax: http://www.lua.org/manual/5.1/manual.html#5.1)
+
+        chunk ::= {stat [';']} [laststat [';']
+
+        block ::= chunk
+
+        stat ::=  varlist '=' explist | 
+                 functioncall | 
+                 { block } | 
+                 while exp { block } | 
+                 repeat block until exp | 
+                 if exp { block {elseif exp { block }} [else block] } | 
+                 for Name '=' exp ',' exp [',' exp] { block } | 
+                 for namelist in explist { block } | 
+                 function funcname funcbody | 
+                 local function Name funcbody | 
+                 local namelist ['=' explist] 
+
+        laststat ::= return [explist] | break
+
+        funcname ::= Name {'.' Name} [':' Name]
+
+        varlist ::= var {',' var}
+
+        var ::=  Name | prefixexp '[' exp ']'| prefixexp '.' Name 
+
+        namelist ::= Name {',' Name}
+
+        explist ::= {exp ',' exp
+
+        exp ::=  nil | false | true | Number | String | '...' | function | 
+                 prefixexp | tableconstructor | exp binop exp | unop exp 
+
+        prefixexp ::= var | functioncall | '(' exp ')'
+
+        functioncall ::=  prefixexp args | prefixexp ':' Name args 
+
+        args ::=  '(' [explist] ')' | tableconstructor | String 
+
+        function ::= function funcbody
+
+        funcbody ::= '(' [parlist] ')' { block }
+
+        parlist ::= namelist [',' '...'] | '...'
+
+        tableconstructor ::= '{' [fieldlist] '}'
+
+        fieldlist ::= field {fieldsep field} [fieldsep]
+
+        field ::= '[' exp ']' '=' exp | Name '=' exp | exp
+
+        fieldsep ::= ',' | ';'
+
+        binop ::= '+' | '-' | '*' | '/' | '^' | '%' | '..' | 
+                  '<' | '<=' | '>' | '>=' | '==' | '!=' | 
+                  and | or
+
+        unop ::= '-'
+
diff --git a/drivers/staging/ktap/include/ktap.h b/drivers/staging/ktap/include/ktap.h
new file mode 100644
index 000000000000..076dd4aa6477
--- /dev/null
+++ b/drivers/staging/ktap/include/ktap.h
@@ -0,0 +1,169 @@
+#ifndef __KTAP_H__
+#define __KTAP_H__
+
+#include "ktap_types.h"
+#include "ktap_opcodes.h"
+
+#include <linux/version.h>
+#include <linux/hardirq.h>
+#include <linux/perf_event.h>
+#include <linux/trace_seq.h>
+
+typedef struct ktap_Reg {
+        const char *name;
+        ktap_cfunction func;
+} ktap_Reg;
+
+struct ktap_probe_event {
+	struct list_head list;
+	struct perf_event *perf;
+	ktap_state *ks;
+	ktap_closure *cl;
+};
+
+/* this structure allocate on stack */
+struct ktap_event {
+	struct ktap_probe_event *pevent;
+	struct ftrace_event_call *call;
+	struct trace_entry *entry;
+	int entry_size;
+	struct pt_regs *regs;
+};
+
+enum {
+	KTAP_PERCPU_DATA_STATE,
+	KTAP_PERCPU_DATA_STACK,
+	KTAP_PERCPU_DATA_BUFFER,
+	KTAP_PERCPU_DATA_BUFFER2,
+	KTAP_PERCPU_DATA_BTRACE,
+
+	KTAP_PERCPU_DATA_MAX
+};
+
+#define KTAP_PERCPU_BUFFER_SIZE	(3 * PAGE_SIZE)
+
+int gettimeofday_us(void);
+ktap_state *kp_newstate(struct ktap_parm *parm, struct dentry *dir);
+void kp_exit(ktap_state *ks);
+void kp_final_exit(ktap_state *ks);
+ktap_state *kp_newthread(ktap_state *mainthread);
+void kp_exitthread(ktap_state *ks);
+ktap_closure *kp_load(ktap_state *ks, unsigned char *buff);
+void kp_call(ktap_state *ks, StkId func, int nresults);
+void kp_optimize_code(ktap_state *ks, int level, ktap_proto *f);
+void kp_register_lib(ktap_state *ks, const char *libname, const ktap_Reg *funcs);
+void *kp_percpu_data(int type);
+
+void kp_init_baselib(ktap_state *ks);
+void kp_init_oslib(ktap_state *ks);
+void kp_init_kdebuglib(ktap_state *ks);
+void kp_init_timerlib(ktap_state *ks);
+void kp_init_ansilib(ktap_state *ks);
+
+int kp_probe_init(ktap_state *ks);
+void kp_probe_exit(ktap_state *ks);
+
+void kp_perf_event_register(ktap_state *ks, struct perf_event_attr *attr,
+			    struct task_struct *task, char *filter,
+			    ktap_closure *cl);
+
+void kp_event_getarg(ktap_state *ks, ktap_value *ra, int n);
+void kp_event_tostring(ktap_state *ks, struct trace_seq *seq);
+
+int kp_strfmt(ktap_state *ks, struct trace_seq *seq);
+
+void kp_transport_write(ktap_state *ks, const void *data, size_t length);
+void kp_transport_event_write(ktap_state *ks, struct ktap_event *e);
+void kp_transport_print_backtrace(ktap_state *ks);
+void *kp_transport_reserve(ktap_state *ks, size_t length);
+void kp_transport_exit(ktap_state *ks);
+int kp_transport_init(ktap_state *ks, struct dentry *dir);
+
+void kp_exit_timers(ktap_state *ks);
+
+extern int kp_max_exec_count;
+
+/* get from kernel/trace/trace.h */
+static __always_inline int trace_get_context_bit(void)
+{
+	int bit;
+
+	if (in_interrupt()) {
+		if (in_nmi())
+			bit = 0;
+		else if (in_irq())
+			bit = 1;
+		else
+			bit = 2;
+	} else
+		bit = 3;
+
+	return bit;
+}
+
+/* use a special timer context kp_state instead use this recursion approach? */
+DECLARE_PER_CPU(int, kp_recursion_context[PERF_NR_CONTEXTS]);
+
+static __always_inline int get_recursion_context(void)
+{
+	int rctx = trace_get_context_bit();
+
+	if (__this_cpu_read(kp_recursion_context[rctx]))
+		return -1;
+
+	__this_cpu_write(kp_recursion_context[rctx], true);
+	barrier();
+
+	return rctx;
+}
+
+static inline void put_recursion_context(int rctx)
+{
+	barrier();
+	__this_cpu_write(kp_recursion_context[rctx], false);
+}
+
+
+extern unsigned int kp_stub_exit_instr;
+
+static inline void set_next_as_exit(ktap_state *ks)
+{
+	ktap_callinfo *ci;
+
+	ci = ks->ci;
+	if (!ci)
+		return;
+
+	ci->u.l.savedpc = &kp_stub_exit_instr;
+
+	/* See precall, ci changed to ci->prev after invoke C function */
+	if (ci->prev) {
+		ci = ci->prev;
+		ci->u.l.savedpc = &kp_stub_exit_instr;
+	}
+}
+
+#define kp_verbose_printf(ks, ...) \
+	if (G(ks)->parm->verbose)	\
+		kp_printf(ks, "[verbose] "__VA_ARGS__);
+
+/* get argument operation macro */
+#define kp_arg(ks, n)	((ks)->ci->func + (n))
+#define kp_arg_nr(ks)	((int)(ks->top - (ks->ci->func + 1)))
+
+#define kp_arg_check(ks, narg, type)				\
+	do {							\
+		if (unlikely(ttypenv(kp_arg(ks, narg)) != type)) {	\
+			kp_error(ks, "wrong type of argument %d\n", narg);\
+			return -1;				\
+		}						\
+	} while (0)
+
+
+#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 5, 0)
+#define SPRINT_SYMBOL	sprint_symbol_no_offset
+#else
+#define SPRINT_SYMBOL	sprint_symbol
+#endif
+
+#endif /* __KTAP_H__ */
diff --git a/drivers/staging/ktap/include/ktap_opcodes.h b/drivers/staging/ktap/include/ktap_opcodes.h
new file mode 100644
index 000000000000..31c558b680f4
--- /dev/null
+++ b/drivers/staging/ktap/include/ktap_opcodes.h
@@ -0,0 +1,240 @@
+#ifndef __KTAP_BYTECODE_H__
+#define __KTAP_BYTECODE_H__
+
+
+/* opcode is copied from lua initially */
+ 
+typedef enum {
+/*----------------------------------------------------------------------
+ * name            args    description
+ * ------------------------------------------------------------------------*/
+OP_MOVE,/*      A B     R(A) := R(B)                                    */
+OP_LOADK,/*     A Bx    R(A) := Kst(Bx)                                 */
+OP_LOADKX,/*    A       R(A) := Kst(extra arg)                          */
+OP_LOADBOOL,/*  A B C   R(A) := (Bool)B; if (C) pc++                    */
+OP_LOADNIL,/*   A B     R(A), R(A+1), ..., R(A+B) := nil                */
+OP_GETUPVAL,/*  A B     R(A) := UpValue[B]                              */
+
+OP_GETTABUP,/*  A B C   R(A) := UpValue[B][RK(C)]                       */
+OP_GETTABLE,/*  A B C   R(A) := R(B)[RK(C)]                             */
+
+OP_SETTABUP,/*  A B C   UpValue[A][RK(B)] := RK(C)                      */
+OP_SETTABUP_INCR,/*  A B C   UpValue[A][RK(B)] += RK(C)                 */
+OP_SETUPVAL,/*  A B     UpValue[B] := R(A)                              */
+OP_SETTABLE,/*  A B C   R(A)[RK(B)] := RK(C)                            */
+OP_SETTABLE_INCR,/*  A B C   R(A)[RK(B)] += RK(C)                       */
+
+OP_NEWTABLE,/*  A B C   R(A) := {} (size = B,C)                         */
+
+OP_SELF,/*      A B C   R(A+1) := R(B); R(A) := R(B)[RK(C)]             */
+
+OP_ADD,/*       A B C   R(A) := RK(B) + RK(C)                           */
+OP_SUB,/*       A B C   R(A) := RK(B) - RK(C)                           */
+OP_MUL,/*       A B C   R(A) := RK(B) * RK(C)                           */
+OP_DIV,/*       A B C   R(A) := RK(B) / RK(C)                           */
+OP_MOD,/*       A B C   R(A) := RK(B) % RK(C)                           */
+OP_POW,/*       A B C   R(A) := RK(B) ^ RK(C)                           */
+OP_UNM,/*       A B     R(A) := -R(B)                                   */
+OP_NOT,/*       A B     R(A) := not R(B)                                */
+OP_LEN,/*       A B     R(A) := length of R(B)                          */
+
+OP_CONCAT,/*    A B C   R(A) := R(B).. ... ..R(C)                       */
+
+OP_JMP,/*       A sBx   pc+=sBx; if (A) close all upvalues >= R(A) + 1  */
+OP_EQ,/*        A B C   if ((RK(B) == RK(C)) != A) then pc++            */
+OP_LT,/*        A B C   if ((RK(B) <  RK(C)) != A) then pc++            */
+OP_LE,/*        A B C   if ((RK(B) <= RK(C)) != A) then pc++            */
+
+OP_TEST,/*      A C     if not (R(A) <=> C) then pc++                   */
+OP_TESTSET,/*   A B C   if (R(B) <=> C) then R(A) := R(B) else pc++     */
+
+OP_CALL,/*      A B C   R(A), ... ,R(A+C-2) := R(A)(R(A+1), ... ,R(A+B-1)) */
+OP_TAILCALL,/*  A B C   return R(A)(R(A+1), ... ,R(A+B-1))              */
+OP_RETURN,/*    A B     return R(A), ... ,R(A+B-2)      (see note)      */
+
+OP_FORLOOP,/*   A sBx   R(A)+=R(A+2);
+                        if R(A) <?= R(A+1) then { pc+=sBx; R(A+3)=R(A) }*/
+OP_FORPREP,/*   A sBx   R(A)-=R(A+2); pc+=sBx                           */
+
+OP_TFORCALL,/*  A C     R(A+3), ... ,R(A+2+C) := R(A)(R(A+1), R(A+2));  */
+OP_TFORLOOP,/*  A sBx   if R(A+1) != nil then { R(A)=R(A+1); pc += sBx }*/
+
+OP_SETLIST,/*   A B C   R(A)[(C-1)*FPF+i] := R(A+i), 1 <= i <= B        */
+
+OP_CLOSURE,/*   A Bx    R(A) := closure(KPROTO[Bx])                     */
+
+OP_VARARG,/*    A B     R(A), R(A+1), ..., R(A+B-2) = vararg            */
+
+OP_EXTRAARG,/*   Ax      extra (larger) argument for previous opcode     */
+
+OP_EVENT,/*  A B C   R(A) := R(B)[C]                             */
+
+OP_EVENTNAME, /* A	R(A) = event_name() */
+
+OP_EVENTARG,/* A B	R(A) := event_arg(B)*/
+
+OP_LOAD_GLOBAL,/*  A B C   R(A) := R(B)[C]                             */
+
+OP_EXIT,
+
+} OpCode;
+
+
+#define NUM_OPCODES     ((int)OP_LOAD_GLOBAL + 1)
+
+
+enum OpMode {iABC, iABx, iAsBx, iAx};  /* basic instruction format */
+
+
+/*
+ * ** size and position of opcode arguments.
+ * */
+#define SIZE_C          9
+#define SIZE_B          9
+#define SIZE_Bx         (SIZE_C + SIZE_B)
+#define SIZE_A          8
+#define SIZE_Ax         (SIZE_C + SIZE_B + SIZE_A)
+
+#define SIZE_OP         6
+
+#define POS_OP          0
+#define POS_A           (POS_OP + SIZE_OP)
+#define POS_C           (POS_A + SIZE_A)
+#define POS_B           (POS_C + SIZE_C)
+#define POS_Bx          POS_C
+#define POS_Ax          POS_A
+
+
+
+/*
+ * ** limits for opcode arguments.
+ * ** we use (signed) int to manipulate most arguments,
+ * ** so they must fit in LUAI_BITSINT-1 bits (-1 for sign)
+ * */
+#define MAXARG_Bx        ((1<<SIZE_Bx)-1)
+#define MAXARG_sBx        (MAXARG_Bx>>1)         /* `sBx' is signed */
+
+#define MAXARG_Ax       ((1<<SIZE_Ax)-1)
+
+#define MAXARG_A        ((1<<SIZE_A)-1)
+#define MAXARG_B        ((1<<SIZE_B)-1)
+#define MAXARG_C        ((1<<SIZE_C)-1)
+
+
+/* creates a mask with `n' 1 bits at position `p' */
+#define MASK1(n,p)      ((~((~(ktap_instruction)0)<<(n)))<<(p))
+
+/* creates a mask with `n' 0 bits at position `p' */
+#define MASK0(n,p)      (~MASK1(n,p))
+
+/*
+ * ** the following macros help to manipulate instructions
+ * */
+
+#define GET_OPCODE(i)   ((OpCode)((i)>>POS_OP) & MASK1(SIZE_OP,0))
+#define SET_OPCODE(i,o) ((i) = (((i)&MASK0(SIZE_OP,POS_OP)) | \
+                ((((ktap_instruction)o)<<POS_OP)&MASK1(SIZE_OP,POS_OP))))
+
+#define getarg(i,pos,size)      ((int)((i)>>pos) & MASK1(size,0))
+#define setarg(i,v,pos,size)    ((i) = (((i)&MASK0(size,pos)) | \
+                ((((ktap_instruction)v)<<pos)&MASK1(size,pos))))
+
+#define GETARG_A(i)     getarg(i, POS_A, SIZE_A)
+#define SETARG_A(i,v)   setarg(i, v, POS_A, SIZE_A)
+
+#define GETARG_A(i)     getarg(i, POS_A, SIZE_A)
+#define SETARG_A(i,v)   setarg(i, v, POS_A, SIZE_A)
+
+#define GETARG_B(i)     getarg(i, POS_B, SIZE_B)
+#define SETARG_B(i,v)   setarg(i, v, POS_B, SIZE_B)
+
+#define GETARG_C(i)     getarg(i, POS_C, SIZE_C)
+#define SETARG_C(i,v)   setarg(i, v, POS_C, SIZE_C)
+
+#define GETARG_Bx(i)    getarg(i, POS_Bx, SIZE_Bx)
+#define SETARG_Bx(i,v)  setarg(i, v, POS_Bx, SIZE_Bx)
+
+#define GETARG_Ax(i)    getarg(i, POS_Ax, SIZE_Ax)
+#define SETARG_Ax(i,v)  setarg(i, v, POS_Ax, SIZE_Ax)
+
+#define GETARG_sBx(i)   (GETARG_Bx(i)-MAXARG_sBx)
+#define SETARG_sBx(i,b) SETARG_Bx((i), (unsigned int)(b)+MAXARG_sBx)
+
+#define CREATE_ABC(o,a,b,c)     (((ktap_instruction)(o))<<POS_OP) \
+                        | (((ktap_instruction)(a))<<POS_A) \
+                        | (((ktap_instruction)(b))<<POS_B) \
+                        | (((ktap_instruction)(c))<<POS_C)
+
+#define CREATE_ABx(o,a,bc)      (((ktap_instruction)(o))<<POS_OP) \
+                        | (((ktap_instruction)(a))<<POS_A) \
+                        | (((ktap_instruction)(bc))<<POS_Bx)
+
+#define CREATE_Ax(o,a)          (((ktap_instruction)(o))<<POS_OP) \
+                        | (((ktap_instruction)(a))<<POS_Ax)
+
+
+
+/*
+ * ** Macros to operate RK indices
+ * */
+
+/* this bit 1 means constant (0 means register) */
+#define BITRK           (1 << (SIZE_B - 1))
+
+/* test whether value is a constant */
+#define ISK(x)          ((x) & BITRK)
+
+/* gets the index of the constant */
+#define INDEXK(r)       ((int)(r) & ~BITRK)
+
+#define MAXINDEXRK      (BITRK - 1)
+
+/* code a constant index as a RK value */
+#define RKASK(x)        ((x) | BITRK)
+
+
+/*
+ * ** invalid register that fits in 8 bits
+ * */
+#define NO_REG          MAXARG_A
+
+
+/*
+ * ** R(x) - register
+ * ** Kst(x) - constant (in constant table)
+ * ** RK(x) == if ISK(x) then Kst(INDEXK(x)) else R(x)
+ * */
+
+
+
+/*
+ * ** masks for instruction properties. The format is:
+ * ** bits 0-1: op mode
+ * ** bits 2-3: C arg mode
+ * ** bits 4-5: B arg mode
+ * ** bit 6: instruction set register A
+ * ** bit 7: operator is a test (next instruction must be a jump)
+ * */
+
+enum OpArgMask {
+  OpArgN,  /* argument is not used */
+  OpArgU,  /* argument is used */
+  OpArgR,  /* argument is a register or a jump offset */
+  OpArgK   /* argument is a constant or register/constant */
+};
+
+extern const u8 ktap_opmodes[NUM_OPCODES];
+
+#define getOpMode(m)    ((enum OpMode)ktap_opmodes[m] & 3)
+#define getBMode(m)     ((enum OpArgMask)(ktap_opmodes[m] >> 4) & 3)
+#define getCMode(m)     ((enum OpArgMask)(ktap_opmodes[m] >> 2) & 3)
+#define testAMode(m)    (ktap_opmodes[m] & (1 << 6))
+#define testTMode(m)    (ktap_opmodes[m] & (1 << 7))
+
+
+/* number of list items to accumulate before a SETLIST instruction */
+#define LFIELDS_PER_FLUSH       50
+
+extern const char *const ktap_opnames[NUM_OPCODES + 1];
+
+#endif /* __KTAP_BYTECODE_H__ */
diff --git a/drivers/staging/ktap/include/ktap_types.h b/drivers/staging/ktap/include/ktap_types.h
new file mode 100644
index 000000000000..cf1cef41b584
--- /dev/null
+++ b/drivers/staging/ktap/include/ktap_types.h
@@ -0,0 +1,674 @@
+#ifndef __KTAP_TYPES_H__
+#define __KTAP_TYPES_H__
+
+/* opcode is copied from lua initially */
+
+#ifdef __KERNEL__
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/semaphore.h>
+#include <linux/wait.h>
+#else
+typedef char u8;
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#endif
+
+typedef struct ktap_parm {
+	char *trunk; /* __user */
+	int trunk_len;
+	int argc;
+	char **argv; /* __user */
+	int verbose;
+	int trace_pid;
+	int workload;
+	int trace_cpu;
+	int print_timestamp;
+} ktap_parm;
+
+/*
+ * Ioctls that can be done on a ktap fd:
+ * todo: use _IO macro in include/uapi/asm-generic/ioctl.h
+ */
+#define KTAP_CMD_IOC_VERSION		('$' + 0)
+#define KTAP_CMD_IOC_RUN		('$' + 1)
+#define KTAP_CMD_IOC_EXIT		('$' + 3)
+
+#define KTAP_ENV	"_ENV"
+
+#define KTAP_VERSION_MAJOR       "0"
+#define KTAP_VERSION_MINOR       "2"
+
+#define KTAP_VERSION    "ktap " KTAP_VERSION_MAJOR "." KTAP_VERSION_MINOR
+#define KTAP_AUTHOR    "Jovi Zhangwei <jovi.zhangwei@gmail.com>"
+#define KTAP_COPYRIGHT  KTAP_VERSION "  Copyright (C) 2012-2013, " KTAP_AUTHOR
+
+#define MYINT(s)        (s[0] - '0')
+#define VERSION         (MYINT(KTAP_VERSION_MAJOR) * 16 + MYINT(KTAP_VERSION_MINOR))
+#define FORMAT          0 /* this is the official format */
+
+#define KTAP_SIGNATURE  "\033ktap"
+
+/* data to catch conversion errors */
+#define KTAPC_TAIL      "\x19\x93\r\n\x1a\n"
+
+/* size in bytes of header of binary files */
+#define KTAPC_HEADERSIZE	(sizeof(KTAP_SIGNATURE) - sizeof(char) + 2 + \
+				 6 + sizeof(KTAPC_TAIL) - sizeof(char))
+
+typedef int ktap_instruction;
+
+typedef union ktap_gcobject ktap_gcobject;
+
+#define CommonHeader ktap_gcobject *next; u8 tt;
+
+struct ktap_state;
+typedef int (*ktap_cfunction) (struct ktap_state *ks);
+
+typedef union ktap_string {
+	int dummy;  /* ensures maximum alignment for strings */
+	struct {
+		CommonHeader;
+		u8 extra;  /* reserved words for short strings; "has hash" for longs */
+		unsigned int hash;
+		size_t len;  /* number of characters in string */
+	} tsv;
+} ktap_string;
+
+#define getstr(ts)	(const char *)((ts) + 1)
+#define eqshrstr(a,b)	((a) == (b))
+
+#define svalue(o)       getstr(rawtsvalue(o))
+
+
+union _ktap_value {
+	ktap_gcobject *gc;    /* collectable objects */
+	void *p;         /* light userdata */
+	int b;           /* booleans */
+	ktap_cfunction f; /* light C functions */
+	long n;         /* numbers */
+};
+
+
+typedef struct ktap_value {
+	union _ktap_value val;
+	int type;
+} ktap_value;
+
+typedef ktap_value * StkId;
+
+
+
+typedef union ktap_udata {
+	struct {
+		CommonHeader;
+		size_t len;  /* number of bytes */
+	} uv;
+} ktap_udata;
+
+/*
+ * Description of an upvalue for function prototypes
+ */
+typedef struct ktap_upvaldesc {
+	ktap_string *name;  /* upvalue name (for debug information) */
+	u8 instack;  /* whether it is in stack */
+	u8 idx;  /* index of upvalue (in stack or in outer function's list) */
+} ktap_upvaldesc;
+
+/*
+ * Description of a local variable for function prototypes
+ * (used for debug information)
+ */
+typedef struct ktap_locvar {
+	ktap_string *varname;
+	int startpc;  /* first point where variable is active */
+	int endpc;    /* first point where variable is dead */
+} ktap_locvar;
+
+
+typedef struct ktap_upval {
+	CommonHeader;
+	ktap_value *v;  /* points to stack or to its own value */
+	union {
+		ktap_value value;  /* the value (when closed) */
+		struct {  /* double linked list (when open) */
+			struct ktap_upval *prev;
+			struct ktap_upval *next;
+		} l;
+	} u;
+} ktap_upval;
+
+
+#define KTAP_STACK_MAX_ENTRIES 10
+
+typedef struct ktap_btrace {
+	CommonHeader;
+	unsigned int nr_entries;
+	unsigned long entries[KTAP_STACK_MAX_ENTRIES];
+} ktap_btrace;
+
+#define ktap_closure_header \
+	CommonHeader; u8 nupvalues; ktap_gcobject *gclist
+
+typedef struct ktap_cclosure {
+	ktap_closure_header;
+	ktap_cfunction f;
+	ktap_value upvalue[1];  /* list of upvalues */
+} ktap_cclosure;
+
+
+typedef struct ktap_lclosure {
+	ktap_closure_header;
+	struct ktap_proto *p;
+	struct ktap_upval *upvals[1];  /* list of upvalues */
+} ktap_lclosure;
+
+
+typedef struct ktap_closure {
+	struct ktap_cclosure c;
+	struct ktap_lclosure l;
+} ktap_closure;
+
+
+typedef struct ktap_proto {
+	CommonHeader;
+	ktap_value *k;  /* constants used by the function */
+	ktap_instruction *code;
+	struct ktap_proto **p;  /* functions defined inside the function */
+	int *lineinfo;  /* map from opcodes to source lines (debug information) */
+	struct ktap_locvar *locvars;  /* information about local variables (debug information) */
+	struct ktap_upvaldesc *upvalues;  /* upvalue information */
+	ktap_closure *cache;  /* last created closure with this prototype */
+	ktap_string  *source;  /* used for debug information */
+	int sizeupvalues;  /* size of 'upvalues' */
+	int sizek;  /* size of `k' */
+	int sizecode;
+	int sizelineinfo;
+	int sizep;  /* size of `p' */
+	int sizelocvars;
+	int linedefined;
+	int lastlinedefined;
+	u8 numparams;  /* number of fixed parameters */
+	u8 is_vararg;
+	u8 maxstacksize;  /* maximum stack used by this function */
+} ktap_proto;
+
+
+/*
+ * information about a call
+ */
+typedef struct ktap_callinfo {
+	StkId func;  /* function index in the stack */
+	StkId top;  /* top for this function */
+	struct ktap_callinfo *prev, *next;  /* dynamic call link */
+	short nresults;  /* expected number of results from this function */
+	u8 callstatus;
+	int extra;
+	union {
+		struct {  /* only for Lua functions */
+			StkId base;  /* base for this function */
+			const unsigned int *savedpc;
+		} l;
+		struct {  /* only for C functions */
+			int ctx;  /* context info. in case of yields */
+			u8 status;
+		} c;
+	} u;
+} ktap_callinfo;
+
+
+/*
+ * ktap_tables
+ */
+typedef union ktap_tkey {
+	struct {
+		union _ktap_value value_;
+		int tt_;
+		struct ktap_tnode *next;  /* for chaining */
+	} nk;
+	ktap_value tvk;
+} ktap_tkey;
+
+
+typedef struct ktap_tnode {
+	ktap_value i_val;
+	ktap_tkey i_key;
+} ktap_tnode;
+
+
+typedef struct ktap_table {
+	CommonHeader;
+#ifdef __KERNEL__
+	arch_spinlock_t lock;
+#endif
+	u8 flags;  /* 1<<p means tagmethod(p) is not present */
+	u8 lsizenode;  /* log2 of size of `node' array */
+	int sizearray;  /* size of `array' array */
+	ktap_value *array;  /* array part */
+	ktap_tnode *node;
+	ktap_tnode *lastfree;  /* any free position is before this position */
+	ktap_gcobject *gclist;
+} ktap_table;
+
+#define lmod(s,size)	((int)((s) & ((size)-1)))
+
+enum AGGREGATION_TYPE {
+	AGGREGATION_TYPE_COUNT,
+	AGGREGATION_TYPE_MAX,
+	AGGREGATION_TYPE_MIN,
+	AGGREGATION_TYPE_SUM,
+	AGGREGATION_TYPE_AVG
+};
+
+typedef struct ktap_aggrtable {
+	CommonHeader;
+	ktap_table **pcpu_tbl;
+	ktap_gcobject *gclist;
+} ktap_aggrtable;
+
+typedef struct ktap_aggraccval {
+	CommonHeader;
+	int type;
+	int val;
+	int more;
+} ktap_aggraccval;
+
+typedef struct ktap_stringtable {
+	ktap_gcobject **hash;
+	int nuse;
+	int size;
+} ktap_stringtable;
+
+typedef struct ktap_global_state {
+	ktap_stringtable strt;  /* hash table for strings */
+	ktap_value registry;
+	unsigned int seed; /* randonized seed for hashes */
+	u8 gcstate; /* state of garbage collector */
+	u8 gckind; /* kind of GC running */
+	u8 gcrunning; /* true if GC is running */
+
+	ktap_gcobject *allgc; /* list of all collectable objects */
+
+	ktap_upval uvhead; /* head of double-linked list of all open upvalues */
+
+	struct ktap_state *mainthread;
+#ifdef __KERNEL__
+	ktap_parm *parm;
+	pid_t trace_pid;
+	struct task_struct *trace_task;
+	cpumask_var_t cpumask;
+	struct ring_buffer *buffer;
+	struct dentry *trace_pipe_dentry;
+	int nr_builtin_cfunction;
+	ktap_value *cfunction_tbl;
+	struct task_struct *task;
+	int trace_enabled;
+	struct list_head timers;
+	struct list_head probe_events_head;
+	int exit;
+	int wait_user;
+	ktap_closure *trace_end_closure;
+#endif
+	int error;
+} ktap_global_state;
+
+typedef struct ktap_state {
+	CommonHeader;
+	u8 status;
+	ktap_global_state *g;
+	int stop;
+	StkId top;
+	ktap_callinfo *ci;
+	const unsigned long *oldpc;
+	StkId stack_last;
+	StkId stack;
+	int stacksize;
+	ktap_gcobject *openupval;
+	ktap_callinfo baseci;
+
+	int debug;
+	int version;
+	int gcrunning;
+
+	/* list of temp collectable objects, free when thread exit */
+	ktap_gcobject *gclist;
+
+#ifdef __KERNEL__
+	struct ktap_event *current_event;
+	int aggr_accval; /* for temp value storage */
+#endif
+} ktap_state;
+
+
+typedef struct gcheader {
+	CommonHeader;
+} gcheader;
+
+/*
+ * Union of all collectable objects
+ */
+union ktap_gcobject {
+	gcheader gch;  /* common header */
+	union ktap_string ts;
+	union ktap_udata u;
+	struct ktap_closure cl;
+	struct ktap_table h;
+	struct ktap_aggrtable ah;
+	struct ktap_aggraccval acc;
+	struct ktap_proto p;
+	struct ktap_upval uv;
+	struct ktap_state th;  /* thread */
+ 	struct ktap_btrace bt;  /* thread */
+};
+
+#define gch(o)	(&(o)->gch)
+/* macros to convert a GCObject into a specific value */
+#define rawgco2ts(o)	(&((o)->ts))
+#define gco2ts(o)       (&rawgco2ts(o)->tsv)
+
+#define gco2uv(o)	(&((o)->uv))
+
+#define obj2gco(v)	((ktap_gcobject *)(v))
+
+
+#ifdef __KERNEL__
+#define ktap_assert(s)
+#else
+#define ktap_assert(s)
+#if 0
+#define ktap_assert(s)	\
+	do {	\
+		if (!s) {	\
+			printf("assert failed %s, %d\n", __func__, __LINE__);\
+			exit(0);	\
+		}	\
+	} while(0)
+#endif
+#endif
+
+#define check_exp(c,e)                (e)
+
+
+typedef int ktap_number;
+
+
+#define ktap_number2int(i,n)   ((i)=(int)(n))
+
+
+/* predefined values in the registry */
+#define KTAP_RIDX_MAINTHREAD     1
+#define KTAP_RIDX_GLOBALS        2
+#define KTAP_RIDX_LAST           KTAP_RIDX_GLOBALS
+
+
+#define KTAP_TNONE		(-1)
+
+#define KTAP_TNIL		0
+#define KTAP_TBOOLEAN		1
+#define KTAP_TLIGHTUSERDATA	2
+#define KTAP_TNUMBER		3
+#define KTAP_TSTRING		4
+#define KTAP_TSHRSTR		(KTAP_TSTRING | (0 << 4))  /* short strings */
+#define KTAP_TLNGSTR		(KTAP_TSTRING | (1 << 4))  /* long strings */
+#define KTAP_TTABLE		5
+#define KTAP_TFUNCTION		6
+#define KTAP_TLCL		(KTAP_TFUNCTION | (0 << 4))  /* closure */
+#define KTAP_TLCF		(KTAP_TFUNCTION | (1 << 4))  /* light C function */
+#define KTAP_TCCL		(KTAP_TFUNCTION | (2 << 4))  /* C closure */
+#define KTAP_TUSERDATA		7
+#define KTAP_TTHREAD		8
+
+#define KTAP_NUMTAGS		9
+
+#define KTAP_TPROTO		11
+#define KTAP_TUPVAL		12
+
+#define KTAP_TEVENT		13
+
+#define KTAP_TBTRACE		14
+
+#define KTAP_TAGGRTABLE		15
+#define KTAP_TAGGRACCVAL	16
+#define KTAP_TAGGRVAL		17
+
+#define ttype(o)	((o->type) & 0x3F)
+#define settype(obj, t)	((obj)->type = (t))
+
+
+
+/* raw type tag of a TValue */
+#define rttype(o)       ((o)->type)
+
+/* tag with no variants (bits 0-3) */
+#define novariant(x)    ((x) & 0x0F)
+
+/* type tag of a TValue with no variants (bits 0-3) */
+#define ttypenv(o)      (novariant(rttype(o)))
+
+#define val_(o)		((o)->val)
+
+#define bvalue(o)	(val_(o).b)
+#define nvalue(o)	(val_(o).n)
+#define hvalue(o)	(&val_(o).gc->h)
+#define ahvalue(o)	(&val_(o).gc->ah)
+#define aggraccvalue(o)	(&val_(o).gc->acc)
+#define CLVALUE(o)	(&val_(o).gc->cl.l)
+#define clcvalue(o)	(&val_(o).gc->cl.c)
+#define clvalue(o)	(&val_(o).gc->cl)
+#define rawtsvalue(o)	(&val_(o).gc->ts)
+#define pvalue(o)	(&val_(o).p)
+#define fvalue(o)	(val_(o).f)
+#define rawuvalue(o)	(&val_(o).gc->u)
+#define uvalue(o)	(&rawuvalue(o)->uv)
+#define evalue(o)	(val_(o).p)
+#define btvalue(o)	(&val_(o).gc->bt)
+
+#define gcvalue(o)	(val_(o).gc)
+
+#define isnil(o)	(o->type == KTAP_TNIL)
+#define isboolean(o)	(o->type == KTAP_TBOOLEAN)
+#define isfalse(o)	(isnil(o) || (isboolean(o) && bvalue(o) == 0))
+
+#define ttisshrstring(o)	((o)->type == KTAP_TSHRSTR)
+#define ttisstring(o)		(((o)->type & 0x0F) == KTAP_TSTRING)
+#define ttisnumber(o)		((o)->type == KTAP_TNUMBER)
+#define ttisfunc(o)		((o)->type == KTAP_TFUNCTION)
+#define ttistable(o)		((o)->type == KTAP_TTABLE)
+#define ttisaggrtable(o)	((o)->type == KTAP_TAGGRTABLE)
+#define ttisaggrval(o)		((o)->type == KTAP_TAGGRVAL)
+#define ttisaggracc(o)		((o)->type == KTAP_TAGGRACCVAL)
+#define ttisnil(o)		((o)->type == KTAP_TNIL)
+#define ttisboolean(o)		((o)->type == KTAP_TBOOLEAN)
+#define ttisequal(o1,o2)        ((o1)->type == (o2)->type)
+#define ttisevent(o)		((o)->type == KTAP_TEVENT)
+#define ttisbtrace(o)		((o)->type == KTAP_TBTRACE)
+
+#define ttisclone(o)		ttisbtrace(o)
+
+
+#define setnilvalue(obj) \
+	{ ktap_value *io = (obj); io->val.n = 0; settype(io, KTAP_TNIL); }
+
+#define setbvalue(obj, x) \
+	{ ktap_value *io = (obj); io->val.b = (x); settype(io, KTAP_TBOOLEAN); }
+
+#define setnvalue(obj, x) \
+	{ ktap_value *io = (obj); io->val.n = (x); settype(io, KTAP_TNUMBER); }
+
+#define setaggrvalue(obj, x) \
+	{ ktap_value *io = (obj); io->val.n = (x); settype(io, KTAP_TAGGRVAL); }
+
+#define setaggraccvalue(obj,x) \
+	{ ktap_value *io=(obj); \
+	  val_(io).gc = (ktap_gcobject *)(x); settype(io, KTAP_TAGGRACCVAL); }
+
+#define setsvalue(obj, x) \
+	{ ktap_value *io = (obj); \
+	  ktap_string *x_ = (x); \
+	  io->val.gc = (ktap_gcobject *)x_; settype(io, x_->tsv.tt); }
+
+#define setcllvalue(obj, x) \
+	{ ktap_value *io = (obj); \
+	  io->val.gc = (ktap_gcobject *)x; settype(io, KTAP_TLCL); }
+
+#define sethvalue(obj,x) \
+	{ ktap_value *io=(obj); \
+	  val_(io).gc = (ktap_gcobject *)(x); settype(io, KTAP_TTABLE); }
+
+#define setahvalue(obj,x) \
+	{ ktap_value *io=(obj); \
+	  val_(io).gc = (ktap_gcobject *)(x); settype(io, KTAP_TAGGRTABLE); }
+
+#define setfvalue(obj,x) \
+	{ ktap_value *io=(obj); val_(io).f=(x); settype(io, KTAP_TLCF); }
+
+#define setthvalue(L,obj,x) \
+	{ ktap_value *io=(obj); \
+	  val_(io).gc = (ktap_gcobject *)(x); settype(io, KTAP_TTHREAD); }
+
+#define setevalue(obj, x) \
+	{ ktap_value *io=(obj); val_(io).p = (x); settype(io, KTAP_TEVENT); }
+
+#define setbtvalue(obj,x) \
+	{ ktap_value *io=(obj); \
+	  val_(io).gc = (ktap_gcobject *)(x); settype(io, KTAP_TBTRACE); }
+
+#define setobj(obj1,obj2) \
+        { const ktap_value *io2=(obj2); ktap_value *io1=(obj1); \
+          io1->val = io2->val; io1->type = io2->type; }
+
+#define rawequalobj(t1, t2) \
+	(ttisequal(t1, t2) && kp_equalobjv(NULL, t1, t2))
+
+#define equalobj(ks, t1, t2) rawequalobj(t1, t2)
+
+#define incr_top(ks) {ks->top++;}
+
+#define NUMADD(a, b)    ((a) + (b))
+#define NUMSUB(a, b)    ((a) - (b))
+#define NUMMUL(a, b)    ((a) * (b))
+#define NUMDIV(a, b)    ((a) / (b))
+#define NUMUNM(a)       (-(a))
+#define NUMEQ(a, b)     ((a) == (b))
+#define NUMLT(a, b)     ((a) < (b))
+#define NUMLE(a, b)     ((a) <= (b))
+#define NUMISNAN(a)     (!NUMEQ((a), (a)))
+
+/* todo: floor and pow in kernel */
+#define NUMMOD(a, b)    ((a) % (b))
+#define NUMPOW(a, b)    (pow(a, b))
+
+
+ktap_string *kp_tstring_newlstr(ktap_state *ks, const char *str, size_t l);
+ktap_string *kp_tstring_newlstr_local(ktap_state *ks, const char *str, size_t l);
+ktap_string *kp_tstring_new(ktap_state *ks, const char *str);
+ktap_string *kp_tstring_new_local(ktap_state *ks, const char *str);
+int kp_tstring_eqstr(ktap_string *a, ktap_string *b);
+unsigned int kp_string_hash(const char *str, size_t l, unsigned int seed);
+int kp_tstring_eqlngstr(ktap_string *a, ktap_string *b);
+int kp_tstring_cmp(const ktap_string *ls, const ktap_string *rs);
+void kp_tstring_resize(ktap_state *ks, int newsize);
+void kp_tstring_freeall(ktap_state *ks);
+
+ktap_value *kp_table_set(ktap_state *ks, ktap_table *t, const ktap_value *key);
+ktap_table *kp_table_new(ktap_state *ks);
+const ktap_value *kp_table_getint(ktap_table *t, int key);
+void kp_table_setint(ktap_state *ks, ktap_table *t, int key, ktap_value *v);
+const ktap_value *kp_table_get(ktap_table *t, const ktap_value *key);
+void kp_table_setvalue(ktap_state *ks, ktap_table *t, const ktap_value *key, ktap_value *val);
+void kp_table_resize(ktap_state *ks, ktap_table *t, int nasize, int nhsize);
+void kp_table_resizearray(ktap_state *ks, ktap_table *t, int nasize);
+void kp_table_free(ktap_state *ks, ktap_table *t);
+int kp_table_length(ktap_state *ks, ktap_table *t);
+void kp_table_dump(ktap_state *ks, ktap_table *t);
+void kp_table_clear(ktap_state *ks, ktap_table *t);
+void kp_table_histogram(ktap_state *ks, ktap_table *t);
+int kp_table_next(ktap_state *ks, ktap_table *t, StkId key);
+void kp_table_atomic_inc(ktap_state *ks, ktap_table *t, ktap_value *key, int n);
+void kp_aggraccval_dump(ktap_state *ks, ktap_aggraccval *acc);
+ktap_aggrtable *kp_aggrtable_new(ktap_state *ks);
+ktap_table *kp_aggrtable_synthesis(ktap_state *ks, ktap_aggrtable *ah);
+void kp_aggrtable_dump(ktap_state *ks, ktap_aggrtable *ah);
+void kp_aggrtable_free(ktap_state *ks, ktap_aggrtable *ah);
+void kp_aggrtable_set(ktap_state *ks, ktap_aggrtable *ah,
+			ktap_value *key, ktap_value *val);
+void kp_aggrtable_get(ktap_state *ks, ktap_aggrtable *ah,
+			ktap_value *key, ktap_value *val);
+void kp_aggrtable_histogram(ktap_state *ks, ktap_aggrtable *ah);
+void kp_obj_dump(ktap_state *ks, const ktap_value *v);
+void kp_showobj(ktap_state *ks, const ktap_value *v);
+int kp_objlen(ktap_state *ks, const ktap_value *rb);
+void kp_objclone(ktap_state *ks, const ktap_value *o, ktap_value *newo,
+		 ktap_gcobject **list);
+ktap_gcobject *kp_newobject(ktap_state *ks, int type, size_t size, ktap_gcobject **list);
+int kp_equalobjv(ktap_state *ks, const ktap_value *t1, const ktap_value *t2);
+ktap_closure *kp_newlclosure(ktap_state *ks, int n);
+ktap_proto *kp_newproto(ktap_state *ks);
+ktap_upval *kp_newupval(ktap_state *ks);
+void kp_free_gclist(ktap_state *ks, ktap_gcobject *o);
+void kp_free_all_gcobject(ktap_state *ks);
+void kp_header(u8 *h);
+
+int kp_str2d(const char *s, size_t len, ktap_number *result);
+
+#define kp_realloc(ks, v, osize, nsize, t) \
+	((v) = (t *)kp_reallocv(ks, v, osize * sizeof(t), nsize * sizeof(t)))
+
+#define kp_error(ks, args...) \
+	do { \
+		kp_printf(ks, "error: "args);	\
+		G(ks)->error = 1; \
+		kp_exit(ks);	\
+	} while(0)
+
+#ifdef __KERNEL__
+#define G(ks)   (ks->g)
+
+void *kp_malloc(ktap_state *ks, int size);
+void kp_free(ktap_state *ks, void *addr);
+void *kp_reallocv(ktap_state *ks, void *addr, int oldsize, int newsize);
+void *kp_zalloc(ktap_state *ks, int size);
+
+void kp_printf(ktap_state *ks, const char *fmt, ...);
+extern void __kp_puts(ktap_state *ks, const char *str);
+extern void __kp_bputs(ktap_state *ks, const char *str);
+
+#define kp_puts(ks, str) ({						\
+	static const char *trace_printk_fmt				\
+		__attribute__((section("__trace_printk_fmt"))) =	\
+		__builtin_constant_p(str) ? str : NULL;			\
+									\
+	if (__builtin_constant_p(str))					\
+		__kp_bputs(ks, trace_printk_fmt);		\
+	else								\
+		__kp_puts(ks, str);		\
+})
+
+#else
+/*
+ * this is used for ktapc tstring operation, tstring need G(ks)->strt
+ * and G(ks)->seed, so ktapc need to init those field
+ */
+#define G(ks)   (&dummy_global_state)
+extern ktap_global_state dummy_global_state;
+
+#define kp_malloc(ks, size)			malloc(size)
+#define kp_free(ks, block)			free(block)
+#define kp_reallocv(ks, block, osize, nsize)	realloc(block, nsize)
+#define kp_printf(ks, args...)			printf(args)
+#define kp_puts(ks, str)			printf("%s", str)
+#define kp_exit(ks)				exit(EXIT_FAILURE)
+#endif
+
+#define __maybe_unused	__attribute__((unused))
+
+/*
+ * KTAP_QL describes how error messages quote program elements.
+ * CHANGE it if you want a different appearance.
+ */
+#define KTAP_QL(x)      "'" x "'"
+#define KTAP_QS         KTAP_QL("%s")
+
+#endif /* __KTAP_TYPES_H__ */
+
diff --git a/drivers/staging/ktap/interpreter/ktap.c b/drivers/staging/ktap/interpreter/ktap.c
new file mode 100644
index 000000000000..18d8fc8ec63d
--- /dev/null
+++ b/drivers/staging/ktap/interpreter/ktap.c
@@ -0,0 +1,235 @@
+/*
+ * ktap.c - ktapvm kernel module main entry
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+/*
+ * this file is the first file to be compile, add CONFIG_ checking in here.
+ * See Requirements in doc/introduction.txt
+ */
+
+#include <linux/version.h>
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 1, 0)
+#error "Currently ktap don't support kernel older than 3.1"
+#endif
+
+#if !CONFIG_EVENT_TRACING
+#error "Please enable CONFIG_EVENT_TRACING before compile ktap"
+#endif
+
+#if !CONFIG_PERF_EVENTS
+#error "Please enable CONFIG_PERF_EVENTS before compile ktap"
+#endif
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/file.h>
+#include <linux/fcntl.h>
+#include <linux/sched.h>
+#include <linux/poll.h>
+#include <linux/anon_inodes.h>
+#include <linux/debugfs.h>
+#include <linux/vmalloc.h>
+#include "../include/ktap.h"
+
+static int load_trunk(struct ktap_parm *parm, unsigned long **buff)
+{
+	int ret;
+	unsigned long *vmstart;
+
+	vmstart = vmalloc(parm->trunk_len);
+	if (!vmstart)
+		return -ENOMEM;
+
+	ret = copy_from_user(vmstart, (void __user *)parm->trunk,
+			     parm->trunk_len);
+	if (ret < 0) {
+		vfree(vmstart);
+		return -EFAULT;
+	}
+
+	*buff = vmstart;
+	return 0;
+}
+
+int gettimeofday_us(void)
+{
+	struct timeval tv;
+
+	do_gettimeofday(&tv);
+	return tv.tv_sec * USEC_PER_SEC + tv.tv_usec;
+}
+
+struct dentry *kp_dir_dentry;
+static atomic_t kp_is_running = ATOMIC_INIT(0);
+
+/* Ktap Main Entry */
+static int ktap_main(struct file *file, ktap_parm *parm)
+{
+	unsigned long *buff = NULL;
+	ktap_state *ks;
+	ktap_closure *cl;
+	int start_time, delta_time;
+	int ret;
+
+	if (atomic_inc_return(&kp_is_running) != 1) {
+		atomic_dec(&kp_is_running);
+		pr_info("only one ktap thread allow to run\n");
+		return -EBUSY;
+	}
+
+	start_time = gettimeofday_us();
+
+	ks = kp_newstate(parm, kp_dir_dentry);
+	if (unlikely(!ks)) {
+		ret = -ENOEXEC;
+		goto out;
+	}
+
+	file->private_data = ks;
+
+	ret = load_trunk(parm, &buff);
+	if (ret) {
+		pr_err("cannot load file\n");
+		goto out;
+	}
+
+	cl = kp_load(ks, (unsigned char *)buff);
+
+	vfree(buff);
+
+	if (cl) {
+		/* optimize bytecode before excuting */
+		kp_optimize_code(ks, 0, cl->l.p);
+
+		delta_time = gettimeofday_us() - start_time;
+		kp_verbose_printf(ks, "booting time: %d (us)\n", delta_time);
+		kp_call(ks, ks->top - 1, 0);
+	}
+
+	kp_final_exit(ks);
+
+ out:
+	atomic_dec(&kp_is_running);	
+	return ret;
+}
+
+
+static void print_version(void)
+{
+}
+
+static long ktap_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	ktap_parm parm;
+	int ret;
+
+	switch (cmd) {
+	case KTAP_CMD_IOC_VERSION:
+		print_version();
+		return 0;
+	case KTAP_CMD_IOC_RUN:
+		ret = copy_from_user(&parm, (void __user *)arg,
+				     sizeof(ktap_parm));
+		if (ret < 0)
+			return -EFAULT;
+
+		return ktap_main(file, &parm);
+	default:
+		return -EINVAL;
+	};
+
+        return 0;
+}
+
+static const struct file_operations ktap_fops = {
+	.llseek                 = no_llseek,
+	.unlocked_ioctl         = ktap_ioctl,
+};
+
+static long ktapvm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	int new_fd, err;
+	struct file *new_file;
+
+	new_fd = get_unused_fd();
+	if (new_fd < 0)
+		return new_fd;
+
+	new_file = anon_inode_getfile("[ktap]", &ktap_fops, NULL, O_RDWR);
+	if (IS_ERR(new_file)) {
+		err = PTR_ERR(new_file);
+		put_unused_fd(new_fd);
+		return err;
+	}
+
+	file->private_data = NULL;
+	fd_install(new_fd, new_file);
+	return new_fd;
+}
+
+static const struct file_operations ktapvm_fops = {
+	.owner  = THIS_MODULE,
+	.unlocked_ioctl         = ktapvm_ioctl,
+};
+
+unsigned int kp_stub_exit_instr;
+
+static int __init init_ktap(void)
+{
+	struct dentry *ktapvm_dentry;
+
+	kp_dir_dentry = debugfs_create_dir("ktap", NULL);
+	if (!kp_dir_dentry) {
+		pr_err("ktap: debugfs_create_dir failed\n");
+		return -1;
+	}
+
+	ktapvm_dentry = debugfs_create_file("ktapvm", 0444, kp_dir_dentry, NULL,
+					    &ktapvm_fops);
+
+	if (!ktapvm_dentry) {
+		pr_err("ktapvm: cannot create ktapvm file\n");
+		debugfs_remove_recursive(kp_dir_dentry);
+		return -1;
+	}
+
+	SET_OPCODE(kp_stub_exit_instr, OP_EXIT);
+
+	return 0;
+}
+
+static void __exit exit_ktap(void)
+{
+	debugfs_remove_recursive(kp_dir_dentry);
+}
+
+module_init(init_ktap);
+module_exit(exit_ktap);
+
+MODULE_AUTHOR("Jovi Zhangwei <jovi.zhangwei@gmail.com>");
+MODULE_DESCRIPTION("ktap");
+MODULE_LICENSE("GPL");
+
+int kp_max_exec_count = 10000;
+module_param_named(max_exec_count, kp_max_exec_count, int, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(max_exec_count, "non-mainthread max instruction execution count");
+
diff --git a/drivers/staging/ktap/interpreter/library/ansilib.c b/drivers/staging/ktap/interpreter/library/ansilib.c
new file mode 100644
index 000000000000..d058373e5f30
--- /dev/null
+++ b/drivers/staging/ktap/interpreter/library/ansilib.c
@@ -0,0 +1,153 @@
+/*
+ * ansilib.c - ANSI escape sequences library
+ *
+ * http://en.wikipedia.org/wiki/ANSI_escape_code
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "../../include/ktap.h"
+
+/**
+ * function ansi.clear_screen - Move cursor to top left and clear screen.
+ *
+ * Description: Sends ansi code for moving cursor to top left and then the
+ * ansi code for clearing the screen from the cursor position to the end.
+ */
+
+static int ktap_lib_clear_screen(ktap_state *ks)
+{
+	kp_printf(ks, "\033[1;1H\033[J");
+	return 0;
+}
+
+/**
+ * function ansi.set_color - Set the ansi Select Graphic Rendition mode.
+ * @fg: Foreground color to set.
+ *
+ * Description: Sends ansi code for Select Graphic Rendition mode for the
+ * given forground color. Black (30), Blue (34), Green (32), Cyan (36),
+ * Red (31), Purple (35), Brown (33), Light Gray (37).
+ */
+
+static int ktap_lib_set_color(ktap_state *ks)
+{
+	int fg;
+
+	kp_arg_check(ks, 1, KTAP_TNUMBER);
+
+	fg = nvalue(kp_arg(ks, 1));
+	kp_printf(ks, "\033[%dm", fg);
+	return 0;
+}
+
+/**
+ * function ansi.set_color2 - Set the ansi Select Graphic Rendition mode.
+ * @fg: Foreground color to set.
+ * @bg: Background color to set.
+ *
+ * Description: Sends ansi code for Select Graphic Rendition mode for the
+ * given forground color, Black (30), Blue (34), Green (32), Cyan (36),
+ * Red (31), Purple (35), Brown (33), Light Gray (37) and the given
+ * background color, Black (40), Red (41), Green (42), Yellow (43),
+ * Blue (44), Magenta (45), Cyan (46), White (47).
+ */
+static int ktap_lib_set_color2(ktap_state *ks)
+{
+	int fg, bg;
+	
+	kp_arg_check(ks, 1, KTAP_TNUMBER);
+	kp_arg_check(ks, 2, KTAP_TNUMBER);
+
+	fg = nvalue(kp_arg(ks, 1));
+	bg = nvalue(kp_arg(ks, 2));
+	kp_printf(ks, "\033[%d;%dm", fg, bg);
+	return 0;
+}
+
+/**
+ * function ansi.set_color3 - Set the ansi Select Graphic Rendition mode.
+ * @fg: Foreground color to set.
+ * @bg: Background color to set.
+ * @attr: Color attribute to set.
+ *
+ * Description: Sends ansi code for Select Graphic Rendition mode for the
+ * given forground color, Black (30), Blue (34), Green (32), Cyan (36),
+ * Red (31), Purple (35), Brown (33), Light Gray (37), the given
+ * background color, Black (40), Red (41), Green (42), Yellow (43),
+ * Blue (44), Magenta (45), Cyan (46), White (47) and the color attribute
+ * All attributes off (0), Intensity Bold (1), Underline Single (4),
+ * Blink Slow (5), Blink Rapid (6), Image Negative (7).
+ */
+static int ktap_lib_set_color3(ktap_state *ks)
+{
+	int fg, bg, attr;
+
+	kp_arg_check(ks, 1, KTAP_TNUMBER);
+	kp_arg_check(ks, 2, KTAP_TNUMBER);
+	kp_arg_check(ks, 3, KTAP_TNUMBER);
+
+	fg = nvalue(kp_arg(ks, 1));
+	bg = nvalue(kp_arg(ks, 2));
+	attr = nvalue(kp_arg(ks, 3));
+
+	if (attr)
+		kp_printf(ks, "\033[%d;%d;%dm", fg, bg, attr);
+	else
+		kp_printf(ks, "\033[%d;%dm", fg, bg);
+	
+	return 0;
+}
+
+/**
+ * function ansi.reset_color - Resets Select Graphic Rendition mode.
+ *
+ * Description: Sends ansi code to reset foreground, background and color
+ * attribute to default values.
+ */
+static int ktap_lib_reset_color(ktap_state *ks)
+{
+	kp_printf(ks, "\033[0;0m");
+	return 0;
+}
+
+/**
+ * function ansi.new_line - Move cursor to new line.
+ *
+ * Description: Sends ansi code new line.
+ */
+static int ktap_lib_new_line (ktap_state *ks)
+{
+	kp_printf(ks, "\12");
+	return 0;
+}
+
+static const ktap_Reg ansi_funcs[] = {
+	{"clear_screen", ktap_lib_clear_screen},
+	{"set_color", ktap_lib_set_color},
+	{"set_color2", ktap_lib_set_color2},
+	{"set_color3", ktap_lib_set_color3},
+	{"reset_color", ktap_lib_reset_color},
+	{"new_line", ktap_lib_new_line},
+	{NULL}
+};
+
+void kp_init_ansilib(ktap_state *ks)
+{
+	kp_register_lib(ks, "ansi", ansi_funcs); 
+}
diff --git a/drivers/staging/ktap/interpreter/library/baselib.c b/drivers/staging/ktap/interpreter/library/baselib.c
new file mode 100644
index 000000000000..4bcdc620f9d9
--- /dev/null
+++ b/drivers/staging/ktap/interpreter/library/baselib.c
@@ -0,0 +1,455 @@
+/*
+ * baselib.c - ktapvm kernel module base library
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/hardirq.h>
+#include <linux/kallsyms.h>
+#include <linux/sched.h>
+#include <linux/uaccess.h>
+#include <linux/utsname.h>
+#include <linux/time.h>
+#include <linux/clocksource.h>
+#include <linux/ring_buffer.h>
+#include <linux/stacktrace.h>
+#include "../../include/ktap.h"
+
+static int ktap_lib_next(ktap_state *ks)
+{
+	ktap_table *t = hvalue(ks->top - 2);
+
+	if (kp_table_next(ks, t, ks->top-1)) {
+		ks->top += 1;
+		return 2;
+	} else {
+		ks->top -= 1;
+		setnilvalue(ks->top++);
+		return 1;
+	}
+}
+
+static int ktap_lib_pairs(ktap_state *ks)
+{
+	ktap_value *v = kp_arg(ks, 1);
+	ktap_table *t;
+
+	if (G(ks)->mainthread != ks) {
+		kp_error(ks, "only mainthread can call table pairs\n");
+		return -1;
+	}
+
+	if (ttistable(v)) {
+		t = hvalue(v);
+	} else if (ttisaggrtable(v)) {
+		t = kp_aggrtable_synthesis(ks, ahvalue(v));
+	} else if (isnil(v)) {
+		kp_error(ks, "table is nil in pairs\n");
+		return 0;
+	} else {
+		kp_error(ks, "wrong argument for pairs\n");
+		return 0;
+	}
+
+	setfvalue(ks->top++, ktap_lib_next);
+	sethvalue(ks->top++, t);
+	setnilvalue(ks->top++);
+	return 3;
+}
+
+static int ktap_lib_len(ktap_state *ks)
+{
+	int len = kp_objlen(ks, kp_arg(ks, 1));
+
+	if (len < 0)
+		return -1;
+
+	setnvalue(ks->top, len);
+	incr_top(ks);
+	return 1;
+}
+
+static int ktap_lib_print(ktap_state *ks)
+{
+	int i;
+	int n = kp_arg_nr(ks);
+
+	for (i = 1; i <= n; i++) {
+		ktap_value *arg = kp_arg(ks, i);
+		if (i > 1)
+			kp_puts(ks, "\t");
+		kp_showobj(ks, arg);
+	}
+
+	kp_puts(ks, "\n");
+
+	return 0;
+}
+
+/* don't engage with tstring when printf, use buffer directly */
+static int ktap_lib_printf(ktap_state *ks)
+{
+	struct trace_seq *seq;
+
+	preempt_disable_notrace();
+
+	seq = kp_percpu_data(KTAP_PERCPU_DATA_BUFFER);
+	trace_seq_init(seq);
+
+	if (kp_strfmt(ks, seq))
+		return 0;
+
+	seq->buffer[seq->len] = '\0';
+	kp_transport_write(ks, seq->buffer, seq->len + 1);
+
+	preempt_enable_notrace();
+	return 0;
+}
+
+#ifdef CONFIG_STACKTRACE
+static int ktap_lib_print_backtrace(ktap_state *ks)
+{
+	kp_transport_print_backtrace(ks);
+	return 0;
+}
+#else
+static int ktap_lib_print_backtrace(ktap_state *ks)
+{
+	kp_error(ks, "Please enable CONFIG_STACKTRACE before use "
+		     "ktap print_backtrace\n");
+	return 0;
+}
+#endif
+
+static int ktap_lib_backtrace(ktap_state *ks)
+{
+	struct stack_trace trace;
+	ktap_btrace *bt;
+
+	bt = kp_percpu_data(KTAP_PERCPU_DATA_BTRACE);
+
+	trace.nr_entries = 0;
+	trace.skip = 10;
+	trace.max_entries = KTAP_STACK_MAX_ENTRIES;
+	trace.entries = &bt->entries[0];
+	save_stack_trace(&trace);
+
+	bt->nr_entries = trace.nr_entries;
+	setbtvalue(ks->top, bt);
+	incr_top(ks);
+	return 1;
+}
+
+extern unsigned long long ns2usecs(cycle_t nsec);
+static int ktap_lib_print_trace_clock(ktap_state *ks)
+{
+	unsigned long long t;
+	unsigned long secs, usec_rem;
+	u64 timestamp;
+
+	/* use ring buffer's timestamp */
+	timestamp = ring_buffer_time_stamp(G(ks)->buffer, smp_processor_id());
+
+	t = ns2usecs(timestamp);
+	usec_rem = do_div(t, USEC_PER_SEC);
+	secs = (unsigned long)t;
+
+	kp_printf(ks, "%5lu.%06lu\n", secs, usec_rem);
+
+	return 0;
+}
+
+static int ktap_lib_exit(ktap_state *ks)
+{
+	kp_exit(ks);
+
+	/* do not execute bytecode any more in this thread */
+	return -1;
+}
+
+static int ktap_lib_pid(ktap_state *ks)
+{
+	pid_t pid = task_tgid_vnr(current);
+
+	setnvalue(ks->top, (int)pid);
+	incr_top(ks);
+	return 1;
+}
+
+static int ktap_lib_tid(ktap_state *ks)
+{
+	pid_t pid = task_pid_vnr(current);
+
+	setnvalue(ks->top, (int)pid);
+	incr_top(ks);
+	return 1;
+}
+
+static int ktap_lib_execname(ktap_state *ks)
+{
+	ktap_string *ts = kp_tstring_new(ks, current->comm);
+	setsvalue(ks->top, ts);
+	incr_top(ks);
+	return 1;
+}
+
+static int ktap_lib_cpu(ktap_state *ks)
+{
+	setnvalue(ks->top, smp_processor_id());
+	incr_top(ks);
+	return 1;
+}
+
+static int ktap_lib_num_cpus(ktap_state *ks)
+{
+	setnvalue(ks->top, num_online_cpus());
+	incr_top(ks);
+	return 1;
+}
+
+static int ktap_lib_in_interrupt(ktap_state *ks)
+{
+	int ret = in_interrupt();
+
+	setnvalue(ks->top, ret);
+	incr_top(ks);
+	return 1;
+}
+
+static int ktap_lib_arch(ktap_state *ks)
+{
+	setsvalue(ks->top, kp_tstring_new(ks, utsname()->machine));
+	incr_top(ks);
+	return 1;
+}
+
+static int ktap_lib_kernel_v(ktap_state *ks)
+{
+	setsvalue(ks->top, kp_tstring_new(ks, utsname()->release));
+	incr_top(ks);
+	return 1;
+}
+
+static int ktap_lib_user_string(ktap_state *ks)
+{
+	unsigned long addr;
+	char str[256] = {0};
+	int ret;
+
+	kp_arg_check(ks, 1, KTAP_TNUMBER);
+
+	addr = nvalue(kp_arg(ks, 1));
+
+	pagefault_disable();
+	ret = __copy_from_user_inatomic((void *)str, (const void *)addr, 256);
+	(void) &ret;  /* Silence compiler warning. */
+	pagefault_enable();
+	str[255] = '\0';
+	setsvalue(ks->top, kp_tstring_new(ks, str));
+
+	incr_top(ks);
+	return 1;
+}
+
+static int ktap_lib_histogram(ktap_state *ks)
+{
+	ktap_value *v = kp_arg(ks, 1);
+
+	if (G(ks)->mainthread != ks) {
+		kp_error(ks, "only mainthread can call table historgram\n");
+		return -1;
+	}
+
+	if (ttistable(v))
+		kp_table_histogram(ks, hvalue(v));
+	else if (ttisaggrtable(v))
+		kp_aggrtable_histogram(ks, ahvalue(v));
+
+	return 0;
+}
+
+static int ktap_lib_aggr_table(ktap_state *ks)
+{
+	ktap_aggrtable *ah;
+
+	ah = kp_aggrtable_new(ks);
+	setahvalue(ks->top, ah);
+	incr_top(ks);
+	return 1;
+}
+
+static int ktap_lib_aggr_count(ktap_state *ks)
+{
+	setaggrvalue(ks->top, AGGREGATION_TYPE_COUNT);
+	incr_top(ks);
+	return 1;
+}
+
+static int ktap_lib_aggr_max(ktap_state *ks)
+{
+	kp_arg_check(ks, 1, KTAP_TNUMBER);
+
+	ks->aggr_accval = nvalue(kp_arg(ks, 1));
+	setaggrvalue(ks->top, AGGREGATION_TYPE_MAX);
+	incr_top(ks);
+	return 1;
+}
+
+static int ktap_lib_aggr_min(ktap_state *ks)
+{
+	kp_arg_check(ks, 1, KTAP_TNUMBER);
+
+	ks->aggr_accval = nvalue(kp_arg(ks, 1));
+	setaggrvalue(ks->top, AGGREGATION_TYPE_MIN);
+	incr_top(ks);
+	return 1;
+}
+
+static int ktap_lib_aggr_sum(ktap_state *ks)
+{
+	kp_arg_check(ks, 1, KTAP_TNUMBER);
+
+	ks->aggr_accval = nvalue(kp_arg(ks, 1));
+	setaggrvalue(ks->top, AGGREGATION_TYPE_SUM);
+	incr_top(ks);
+	return 1;
+}
+
+static int ktap_lib_aggr_avg(ktap_state *ks)
+{
+	kp_arg_check(ks, 1, KTAP_TNUMBER);
+
+	ks->aggr_accval = nvalue(kp_arg(ks, 1));
+	setaggrvalue(ks->top, AGGREGATION_TYPE_AVG);
+	incr_top(ks);
+	return 1;
+}
+
+static int ktap_lib_delete(ktap_state *ks)
+{
+	kp_arg_check(ks, 1, KTAP_TTABLE);
+
+	kp_table_clear(ks, hvalue(kp_arg(ks, 1)));
+	return 0;
+}
+
+static int ktap_lib_gettimeofday_us(ktap_state *ks)
+{
+	setnvalue(ks->top, gettimeofday_us());
+	incr_top(ks);
+
+	return 1;
+}
+
+/*
+ * use gdb to get field offset of struct task_struct, for example:
+ *
+ * gdb vmlinux
+ * (gdb)p &(((struct task_struct *)0).prio)
+ */
+static int ktap_lib_curr_task_info(ktap_state *ks)
+{
+	int offset;
+	int fetch_bytes;
+
+	kp_arg_check(ks, 1, KTAP_TNUMBER);
+
+	offset = nvalue(kp_arg(ks, 1));
+	
+	if (kp_arg_nr(ks) == 1)
+		fetch_bytes = 4; /* default fetch 4 bytes*/
+	else {
+		kp_arg_check(ks, 2, KTAP_TNUMBER);
+		fetch_bytes = nvalue(kp_arg(ks, 2));
+	}
+
+	if (offset >= sizeof(struct task_struct)) {
+		setnilvalue(ks->top++);
+		kp_error(ks, "access out of bound value of task_struct\n");
+		return 1;
+	}
+
+#define RET_VALUE ((unsigned long)current + offset)
+
+	switch (fetch_bytes) {
+	case 4:
+		setnvalue(ks->top, *(unsigned int *)RET_VALUE);
+		break;
+	case 8:
+		setnvalue(ks->top, *(unsigned long *)RET_VALUE);
+		break;
+	default:
+		kp_error(ks, "unsupported fetch bytes in curr_task_info\n");
+		setnilvalue(ks->top);
+		break;
+	}
+
+#undef RET_VALUE
+
+	incr_top(ks);
+	return 1;
+}
+
+/*
+ * This built-in function mainly purpose scripts/schedule/schedtimes.kp
+ */
+static int ktap_lib_in_iowait(ktap_state *ks)
+{
+	setnvalue(ks->top, current->in_iowait);
+	incr_top(ks);
+
+	return 1;
+}
+
+static const ktap_Reg base_funcs[] = {
+	{"pairs", ktap_lib_pairs},
+	{"len", ktap_lib_len},
+	{"print", ktap_lib_print},
+	{"printf", ktap_lib_printf},
+	{"print_backtrace", ktap_lib_print_backtrace},
+	{"backtrace", ktap_lib_backtrace},
+	{"print_trace_clock", ktap_lib_print_trace_clock},
+	{"in_interrupt", ktap_lib_in_interrupt},
+	{"exit", ktap_lib_exit},
+	{"pid", ktap_lib_pid},
+	{"tid", ktap_lib_tid},
+	{"execname", ktap_lib_execname},
+	{"cpu", ktap_lib_cpu},
+	{"num_cpus", ktap_lib_num_cpus},
+	{"arch", ktap_lib_arch},
+	{"kernel_v", ktap_lib_kernel_v},
+	{"user_string", ktap_lib_user_string},
+	{"histogram", ktap_lib_histogram},
+	{"aggr_table", ktap_lib_aggr_table},
+	{"count", ktap_lib_aggr_count},
+	{"max", ktap_lib_aggr_max},
+	{"min", ktap_lib_aggr_min},
+	{"sum", ktap_lib_aggr_sum},
+	{"avg", ktap_lib_aggr_avg},
+
+	{"delete", ktap_lib_delete},
+	{"gettimeofday_us", ktap_lib_gettimeofday_us},
+	{"curr_taskinfo", ktap_lib_curr_task_info},
+	{"in_iowait", ktap_lib_in_iowait},
+	{NULL}
+};
+
+void kp_init_baselib(ktap_state *ks)
+{
+	kp_register_lib(ks, NULL, base_funcs); 
+}
diff --git a/drivers/staging/ktap/interpreter/library/kdebug.c b/drivers/staging/ktap/interpreter/library/kdebug.c
new file mode 100644
index 000000000000..8bbbc491b6c7
--- /dev/null
+++ b/drivers/staging/ktap/interpreter/library/kdebug.c
@@ -0,0 +1,450 @@
+/*
+ * kdebug.c - ktap probing core implementation
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/module.h>
+#include <linux/ctype.h>
+#include <linux/version.h>
+#include <linux/ftrace_event.h>
+#include <asm/syscall.h> //syscall_set_return_value defined here
+#include "../../include/ktap.h"
+
+static void ktap_call_probe_closure(ktap_state *mainthread, ktap_closure *cl,
+				    struct ktap_event *e)
+{
+	ktap_state *ks;
+	ktap_value *func;
+
+	ks = kp_newthread(mainthread);
+	setcllvalue(ks->top, cl);
+	func = ks->top;
+	incr_top(ks);
+
+	ks->current_event = e;
+
+	kp_call(ks, func, 0);
+
+	ks->current_event = NULL;
+	kp_exitthread(ks);
+}
+
+void kp_event_tostring(ktap_state *ks, struct trace_seq *seq)
+{
+	struct ktap_event *e = ks->current_event;
+	struct trace_iterator *iter;
+	struct trace_event *ev;
+	enum print_line_t ret = TRACE_TYPE_NO_CONSUME;
+
+	/* Simulate the iterator */
+
+	/*
+	 * use temp percpu buffer as trace_iterator
+	 * we cannot use same temp buffer as printf.
+	 */
+	iter = kp_percpu_data(KTAP_PERCPU_DATA_BUFFER2);
+
+	trace_seq_init(&iter->seq);
+	iter->ent = e->entry;
+
+	ev = &(e->call->event);
+	if (ev)
+		ret = ev->funcs->trace(iter, 0, ev);
+
+	if (ret != TRACE_TYPE_NO_CONSUME) {
+		struct trace_seq *s = &iter->seq;
+		int len = s->len >= PAGE_SIZE ? PAGE_SIZE - 1 : s->len;
+
+		s->buffer[len] = '\0';
+		trace_seq_puts(seq, s->buffer);
+	}
+}
+
+#if 0
+/* check pt_regs defintion in linux/arch/x86/include/asm/ptrace.h */
+/* support other architecture pt_regs showing */
+static void event_regstr(ktap_state *ks, struct ktap_event *e, StkId ra)
+{
+	struct pt_regs *regs = e->regs;
+	char str[256] = {0};
+
+#if defined(CONFIG_X86_32)
+	snprintf(str, sizeof(str),
+		"{ax: 0x%lx, orig_ax: 0x%lx, bx: 0x%lx, cx: 0x%lx, dx: 0x%lx, "
+		"si: 0x%lx, di: 0x%lx, bp: 0x%lx, ds: 0x%lx, es: 0x%lx, fs: 0x%lx, "
+		"gs: 0x%lx, ip: 0x%lx, cs: 0x%lx, flags: 0x%lx, sp: 0x%lx, ss: 0x%lx}\n",
+		regs->ax, regs->orig_ax, regs->bx, regs->cx, regs->dx,
+		regs->si, regs->di, regs->bp, regs->ds, regs->es, regs->fs,
+		regs->gs, regs->ip, regs->cs, regs->flags, regs->sp, regs->ss);
+#elif defined(CONFIG_X86_64)
+	/* x86_64 pt_regs doesn't have ds, es, fs or gs. */
+	snprintf(str, sizeof(str),
+		"{ax: 0x%lx, orig_ax: 0x%lx, bx: 0x%lx, cx: 0x%lx, dx: 0x%lx, "
+		"si: 0x%lx, di: 0x%lx, r8: 0x%lx, r9: 0x%lx, r10: 0x%lx, r11: 0x%lx, "
+		"r12: 0x%lx, r13: 0x%lx, r14: 0x%lx, r15: 0x%lx, bp: 0x%lx, ip: 0x%lx, "
+		"cs: 0x%lx, flags: 0x%lx, sp: 0x%lx, ss: 0x%lx}\n",
+		regs->ax, regs->orig_ax, regs->bx, regs->cx, regs->dx,
+		regs->si, regs->di, regs->r8, regs->r9, regs->r10, regs->r11,
+		regs->r12, regs->r13, regs->r14, regs->r15, regs->bp, regs->ip,
+		regs->cs, regs->flags, regs->sp, regs->ss);
+#endif
+	setsvalue(ra, kp_tstring_new_local(ks, str));
+}
+#endif
+
+/***************************/
+/* This definition should keep update with kernel/trace/trace.h */
+struct ftrace_event_field {
+	struct list_head        link;
+	const char              *name;
+	const char              *type;
+	int                     filter_type;
+	int                     offset;
+	int                     size;
+	int                     is_signed;
+};
+
+static struct list_head *ktap_get_fields(struct ftrace_event_call *event_call)
+{
+	if (!event_call->class->get_fields)
+		return &event_call->class->fields;
+	return event_call->class->get_fields(event_call);
+}
+
+static void get_field_value(ktap_state *ks, struct ktap_event *e,
+			    struct ftrace_event_field *field, ktap_value *ra)
+{
+	void *value = (unsigned char *)e->entry + field->offset;
+
+	if (field->size == 4) {
+		int n = *(int *)value;
+		setnvalue(ra, n);
+		return;
+	} else if (field->size == 8) {
+		long n = *(long *)value;
+		setnvalue(ra, n);
+		return;
+	}
+
+	if (!strncmp(field->type, "char", 4)) {
+		setsvalue(ra, kp_tstring_new(ks, (char *)value));
+		return;
+	}
+}
+
+void kp_event_getarg(ktap_state *ks, ktap_value *ra, int n)
+{
+	struct ktap_event *e = ks->current_event;
+	int index = n;
+	struct ftrace_event_field *field;
+	struct list_head *head;
+
+	/* this is very slow and not safe, fix it in future */
+	head = ktap_get_fields(e->call);
+	list_for_each_entry_reverse(field, head, link) {
+		if (--index == 0) {
+			get_field_value(ks, e, field, ra);
+			return;
+		}
+	}
+
+	setnilvalue(ra);
+	return;
+}
+
+/* Callback function for perf event subsystem
+ * make ktap reentrant, don't disable irq in callback function,
+ * same as perf and ftrace. to make reentrant, we need some
+ * percpu data to be context isolation(irq/sirq/nmi/process)
+ *
+ * perf callback already consider on the recursion issue,
+ * so ktap don't need to check again in here.
+ *
+ * Note tracepoint handler is calling with rcu_read_lock.
+ */
+static void ktap_overflow_callback(struct perf_event *event,
+				   struct perf_sample_data *data,
+				   struct pt_regs *regs)
+{
+	struct ktap_probe_event *ktap_pevent;
+	struct ktap_event e;
+	ktap_state  *ks;
+	int rctx;
+
+	ktap_pevent = event->overflow_handler_context;
+	ks = ktap_pevent->ks;
+
+	if (unlikely(ks->stop))
+		return;
+
+	rctx = get_recursion_context();
+	if (rctx < 0)
+		return;
+
+	/* profile perf event don't have valid associated tp_event */
+	if (event->tp_event) {
+		e.call = event->tp_event;
+		e.entry = data->raw->data;
+		e.entry_size = data->raw->size;
+	}
+	e.pevent = ktap_pevent;
+	e.regs = regs;
+
+	ktap_call_probe_closure(ks, ktap_pevent->cl, &e);
+
+	put_recursion_context(rctx);
+}
+
+static void perf_destructor(struct ktap_probe_event *ktap_pevent)
+{
+	perf_event_release_kernel(ktap_pevent->perf);
+}
+
+static int (*kp_ftrace_profile_set_filter)(struct perf_event *event,
+					   int event_id, char *filter_str);
+
+/*
+ * Generic perf event register function
+ * used by tracepoints/kprobe/uprobe/profile-timer/hw_breakpoint.
+ */
+void kp_perf_event_register(ktap_state *ks, struct perf_event_attr *attr,
+			    struct task_struct *task, char *filter,
+			    ktap_closure *cl)
+{
+	struct ktap_probe_event *ktap_pevent;
+	struct perf_event *event;
+	int cpu, ret;
+
+	kp_verbose_printf(ks, "enable perf event id: %d, filter: %s "
+			      "pid: %d\n", attr->config, filter,
+			      task ? task_tgid_vnr(task) : -1);
+
+	/*
+	 * don't tracing until ktap_wait, the reason is:
+	 * 1). some event may hit before apply filter
+	 * 2). more simple to manage tracing thread
+	 * 3). avoid race with mainthread.
+	 *
+	 * Another way to do this is make attr.disabled as 1, then use
+	 * perf_event_enable after filter apply, however, perf_event_enable
+	 * was not exported in kernel older than 3.3, so we drop this method.
+	 */
+	ks->stop = 1;
+
+	for_each_cpu(cpu, G(ks)->cpumask) {
+		ktap_pevent = kp_zalloc(ks, sizeof(*ktap_pevent));
+		ktap_pevent->ks = ks;
+		ktap_pevent->cl = cl;
+		event = perf_event_create_kernel_counter(attr, cpu, task,
+							 ktap_overflow_callback,
+							 ktap_pevent);
+		if (IS_ERR(event)) {
+			int err = PTR_ERR(event);
+			kp_error(ks, "unable register perf event %d on cpu %d, "
+				     "err: %d\n", attr->config, cpu, err);
+			kp_free(ks, ktap_pevent);
+			return;
+		}
+
+		ktap_pevent->perf = event;
+		INIT_LIST_HEAD(&ktap_pevent->list);
+		list_add_tail(&ktap_pevent->list, &G(ks)->probe_events_head);
+
+		if (!filter)
+			continue;
+
+		ret = kp_ftrace_profile_set_filter(event, attr->config, filter);
+		if (ret) {
+			kp_error(ks, "unable set filter %s for event id %d, "
+				     "ret: %d\n", filter, attr->config, ret);
+			perf_destructor(ktap_pevent);
+			list_del(&ktap_pevent->list);
+			kp_free(ks, ktap_pevent);
+			return;
+		}
+	}
+}
+
+static void end_probes(struct ktap_state *ks)
+{
+	struct ktap_probe_event *ktap_pevent;
+	struct list_head *tmp, *pos;
+	struct list_head *head = &G(ks)->probe_events_head;
+
+	list_for_each(pos, head) {
+		ktap_pevent = container_of(pos, struct ktap_probe_event,
+					   list);
+		perf_destructor(ktap_pevent);
+        }
+       	/*
+	 * Ensure our callback won't be called anymore. The buffers
+	 * will be freed after that.
+	 */
+	tracepoint_synchronize_unregister();
+
+	list_for_each_safe(pos, tmp, head) {
+		ktap_pevent = container_of(pos, struct ktap_probe_event,
+					   list);
+		list_del(&ktap_pevent->list);
+		kp_free(ks, ktap_pevent);
+	}
+}
+
+static int ktap_lib_probe_by_id(ktap_state *ks)
+{
+	const char *ids_str;
+	char *start;
+	ktap_closure *cl;
+	struct task_struct *task = G(ks)->trace_task;
+	char filter_str[128] = {0};
+	char *filter, *ptr1, *sep, *ptr;
+
+	kp_arg_check(ks, 1, KTAP_TSTRING);
+	kp_arg_check(ks, 2, KTAP_TFUNCTION);
+
+	ids_str = svalue(kp_arg(ks, 1));
+	cl = clvalue(kp_arg(ks, 2));
+
+	start = (char *)ids_str;
+
+ again:
+	filter = NULL;
+
+	sep = strchr(start, ',');
+	if (!sep)
+		ptr1 = strchr(start, '/');
+	else
+		ptr1 = strnchr(start, sep - start, '/');
+
+	if (ptr1) {
+		char *ptr2 = strrchr(ptr1 + 1, '/');
+
+		if (ptr2) {
+			memset(filter_str, 0, sizeof(filter_str));
+			strncpy(filter_str, ptr1 + 1, ptr2 - ptr1 - 1);
+			filter = &filter_str[0];
+		} else {
+			kp_printf(ks, "cannot parse ids_str: %s\n", ids_str);
+			return -1;
+		}
+	}
+
+	for (ptr = start; *ptr != ',' && *ptr != '\0' && *ptr != '/'; ptr++) {
+		char token[32] = {0};
+		int id;
+		int i = 0;
+
+		if (*ptr == ' ')
+			continue;
+
+		while (isdigit(*ptr)) {
+			token[i++] = *ptr++;
+		}
+
+		if (!kstrtoint(token, 10, &id)) {
+			struct perf_event_attr attr;
+
+			memset(&attr, 0, sizeof(attr));
+			attr.type = PERF_TYPE_TRACEPOINT;	
+			attr.config = id;
+			attr.sample_type = PERF_SAMPLE_RAW | PERF_SAMPLE_TIME |
+					   PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD;
+			attr.sample_period = 1;
+			attr.size = sizeof(attr);
+			attr.disabled = 0;
+
+			kp_perf_event_register(ks, &attr, task, filter, cl);
+		}
+	}
+
+	if (sep && (*(sep + 1) != '\0')) {
+		start = sep + 1;
+		goto again;
+	}
+
+	return 0;
+}
+
+static int ktap_lib_probe_end(ktap_state *ks)
+{
+	kp_arg_check(ks, 1, KTAP_TFUNCTION);
+
+	G(ks)->trace_end_closure = clvalue(kp_arg(ks, 1));
+	return 0;
+}
+
+static int ktap_lib_traceoff(ktap_state *ks)
+{
+	end_probes(ks);
+
+	/* call trace_end_closure after probed end */
+	if (G(ks)->trace_end_closure) {
+		setcllvalue(ks->top, G(ks)->trace_end_closure);
+		incr_top(ks);
+		kp_call(ks, ks->top - 1, 0);
+		G(ks)->trace_end_closure = NULL;
+	}
+
+	return 0;
+}
+
+void kp_probe_exit(ktap_state *ks)
+{
+	if (!G(ks)->trace_enabled)
+		return;
+
+	end_probes(ks);
+
+	/* call trace_end_closure after probed end */
+	if (!G(ks)->error && G(ks)->trace_end_closure) {
+		setcllvalue(ks->top, G(ks)->trace_end_closure);
+		incr_top(ks);
+		kp_call(ks, ks->top - 1, 0);
+		G(ks)->trace_end_closure = NULL;
+	}
+
+	G(ks)->trace_enabled = 0;
+}
+
+int kp_probe_init(ktap_state *ks)
+{
+	G(ks)->trace_enabled = 1;
+	return 0;
+}
+
+static const ktap_Reg kdebuglib_funcs[] = {
+	{"probe_by_id", ktap_lib_probe_by_id},
+	{"probe_end", ktap_lib_probe_end},
+	{"traceoff", ktap_lib_traceoff},
+	{NULL}
+};
+
+void kp_init_kdebuglib(ktap_state *ks)
+{
+	kp_ftrace_profile_set_filter =
+		(void *)kallsyms_lookup_name("ftrace_profile_set_filter");
+	if (!kp_ftrace_profile_set_filter) {
+		printk("ktap: cannot lookup ftrace_profile_set_filter "
+		       "in kallsyms\n");
+		return;
+	}
+
+	kp_register_lib(ks, "kdebug", kdebuglib_funcs);
+}
+
diff --git a/drivers/staging/ktap/interpreter/library/timer.c b/drivers/staging/ktap/interpreter/library/timer.c
new file mode 100644
index 000000000000..759f917b3658
--- /dev/null
+++ b/drivers/staging/ktap/interpreter/library/timer.c
@@ -0,0 +1,192 @@
+/*
+ * timer.c - timer library support for ktap
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/ctype.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include "../../include/ktap.h"
+
+struct hrtimer_ktap {
+	struct hrtimer timer;
+	ktap_state *ks;
+	ktap_closure *cl;
+	u64 ns;
+	struct list_head list;
+};
+
+/*
+ * Currently ktap disallow tracing event in timer callback closure,
+ * that will corrupt ktap_state and ktap stack, because timer closure
+ * and event closure use same irq percpu ktap_state and stack.
+ * We can use a different percpu ktap_state and stack for timer purpuse,
+ * but that's don't bring any big value with cost on memory consuming.
+ *
+ * So just simply disable tracing in timer closure,
+ * get_recursion_context()/put_recursion_context() is used for this purpose.
+ *
+ * option: export perf_swevent_put_recursion_context to slove this issue.
+ */
+static enum hrtimer_restart hrtimer_ktap_fn(struct hrtimer *timer)
+{
+	struct hrtimer_ktap *t;
+	ktap_state *ks;
+	int rctx;
+
+	rcu_read_lock_sched_notrace();
+	rctx = get_recursion_context();
+
+	t = container_of(timer, struct hrtimer_ktap, timer);
+
+	ks = kp_newthread(t->ks);
+	setcllvalue(ks->top, t->cl);
+	incr_top(ks);
+	kp_call(ks, ks->top - 1, 0);
+	kp_exitthread(ks);
+
+	hrtimer_add_expires_ns(timer, t->ns);
+
+	put_recursion_context(rctx);
+	rcu_read_unlock_sched_notrace();
+
+	return HRTIMER_RESTART;
+}
+
+static void set_tick_timer(ktap_state *ks, u64 period, ktap_closure *cl)
+{
+	struct hrtimer_ktap *t;
+
+	t = kp_malloc(ks, sizeof(*t));
+	t->ks = ks;
+	t->cl = cl;
+	t->ns = period;
+
+	INIT_LIST_HEAD(&t->list);
+	list_add(&t->list, &(G(ks)->timers));
+
+	hrtimer_init(&t->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+	t->timer.function = hrtimer_ktap_fn;
+	hrtimer_start(&t->timer, ns_to_ktime(period), HRTIMER_MODE_REL);
+}
+
+static void set_profile_timer(ktap_state *ks, u64 period, ktap_closure *cl)
+{
+	struct perf_event_attr attr;
+
+	memset(&attr, 0, sizeof(attr));
+	attr.type = PERF_TYPE_SOFTWARE;
+	attr.config = PERF_COUNT_SW_CPU_CLOCK;
+	attr.sample_type = PERF_SAMPLE_RAW | PERF_SAMPLE_TIME |
+			   PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD;
+	attr.sample_period = period;
+	attr.size = sizeof(attr);
+	attr.disabled = 0;
+
+	kp_perf_event_register(ks, &attr, NULL, NULL, cl);
+}
+
+static int do_tick_profile(ktap_state *ks, int is_tick)
+{
+	const char *str, *tmp;
+	char interval_str[32] = {0};
+	char suffix[10] = {0};
+	int n, i = 0;
+	int factor;
+
+	kp_arg_check(ks, 1, KTAP_TSTRING);
+	kp_arg_check(ks, 2, KTAP_TFUNCTION);
+
+	str = svalue(kp_arg(ks, 1));
+	tmp = str;
+	while (isdigit(*tmp))
+		tmp++;
+
+	strncpy(interval_str, str, tmp - str);
+	if (kstrtoint(interval_str, 10, &n))
+		goto error;
+
+	strncpy(suffix, tmp, 9);
+	while (suffix[i] != ' ' && suffix[i] != '\0')
+		i++;
+
+	suffix[i] = '\0';
+
+	if (!strcmp(suffix, "s") || !strcmp(suffix, "sec"))
+		factor = NSEC_PER_SEC;
+	else if (!strcmp(suffix, "ms") || !strcmp(suffix, "msec"))
+		factor = NSEC_PER_MSEC;
+	else if (!strcmp(suffix, "us") || !strcmp(suffix, "usec"))
+		factor = NSEC_PER_USEC;
+	else
+		goto error;
+
+	if (is_tick)
+		set_tick_timer(ks, (u64)factor * n, clvalue(kp_arg(ks, 2)));
+	else
+		set_profile_timer(ks, (u64)factor * n, clvalue(kp_arg(ks, 2)));
+
+	return 0;
+
+ error:
+	kp_error(ks, "cannot parse timer interval: %s\n", str);
+	return -1;
+}
+
+/*
+ * tick-n probes fire on only one CPU per interval.
+ * valid time suffixes: sec/s, msec/ms, usec/us
+ */
+static int ktap_lib_tick(ktap_state *ks)
+{
+	return do_tick_profile(ks, 1);
+}
+
+/*
+ * A profile-n probe fires every fixed interval on every CPU
+ * valid time suffixes: sec/s, msec/ms, usec/us
+ */
+static int ktap_lib_profile(ktap_state *ks)
+{
+	return do_tick_profile(ks, 0);
+}
+
+void kp_exit_timers(ktap_state *ks)
+{
+	struct hrtimer_ktap *t, *tmp;
+	struct list_head *timers_list = &(G(ks)->timers);
+
+	list_for_each_entry_safe(t, tmp, timers_list, list) {
+		hrtimer_cancel(&t->timer);
+		kp_free(ks, t);
+	}
+}
+
+static const ktap_Reg timerlib_funcs[] = {
+	{"profile",	ktap_lib_profile},
+	{"tick",	ktap_lib_tick},
+	{NULL}
+};
+
+void kp_init_timerlib(ktap_state *ks)
+{
+	kp_register_lib(ks, "timer", timerlib_funcs);
+}
+
diff --git a/drivers/staging/ktap/interpreter/loader.c b/drivers/staging/ktap/interpreter/loader.c
new file mode 100644
index 000000000000..0da54d7ef146
--- /dev/null
+++ b/drivers/staging/ktap/interpreter/loader.c
@@ -0,0 +1,310 @@
+/*
+ * loader.c - loader for ktap bytecode chunk file
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
+ *  - The part of code in this file is copied from lua initially.
+ *  - lua's MIT license is compatible with GPL.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/slab.h>
+#include "../include/ktap.h"
+
+#define KTAPC_TAIL	"\x19\x93\r\n\x1a\n"
+
+struct load_state {
+	unsigned char *buff;
+	int pos;
+	ktap_state *ks;
+};
+
+#define READ_CHAR(S)  (S->buff[S->pos++])
+#define READ_BYTE(S)  READ_CHAR(S)
+#define READ_INT(S)  load_int(S)
+#define READ_NUMBER(S) load_number(S)
+#define READ_STRING(S)	load_string(S)
+#define READ_VECTOR(S, dst, size)  \
+	do {	\
+		memcpy(dst, &S->buff[S->pos], size);	\
+		S->pos += size;	\
+	} while(0)
+
+#define NEW_VECTOR(S, size)	kp_malloc(S->ks, size)
+#define GET_CURRENT(S)		&S->buff[S->pos]
+#define ADD_POS(S, size)	S->pos += size
+
+
+static int load_function(struct load_state *S, ktap_proto *f);
+
+
+static int load_int(struct load_state *S)
+{
+	int x;
+
+	READ_VECTOR(S, &x, sizeof(int));
+	return x;
+}
+
+static int load_number(struct load_state *S)
+{
+	int x;
+
+	READ_VECTOR(S, &x, sizeof(ktap_number));
+	return x;
+}
+
+static ktap_string *load_string(struct load_state *S)
+{
+	ktap_string *ts;
+	size_t size;
+
+	size = READ_INT(S);
+
+	if (!size)
+		return NULL;
+	else {
+		char *s = GET_CURRENT(S);
+		ADD_POS(S, size);
+		/* remove trailing '\0' */
+		ts = kp_tstring_newlstr(S->ks, s, size - 1);
+		return ts;
+	}
+}
+
+
+static int load_code(struct load_state *S, ktap_proto *f)
+{
+	int n = READ_INT(S);
+
+	f->sizecode = n;
+	f->code = NEW_VECTOR(S, n * sizeof(ktap_instruction));
+	READ_VECTOR(S, f->code, n * sizeof(ktap_instruction));
+
+	return 0;
+}
+
+static int load_constants(struct load_state *S, ktap_proto *f)
+{
+	int i,n;
+
+	n = READ_INT(S);
+
+	f->sizek = n;
+	f->k = NEW_VECTOR(S, n * sizeof(ktap_value));
+	for (i = 0; i < n; i++)
+		setnilvalue(&f->k[i]);
+
+	for (i=0; i < n; i++) {
+		ktap_value *o = &f->k[i];
+
+		int t = READ_CHAR(S);
+		switch (t) {
+		case KTAP_TNIL:
+			setnilvalue(o);
+			break;
+		case KTAP_TBOOLEAN:
+			setbvalue(o, READ_CHAR(S));
+			break;
+		case KTAP_TNUMBER:
+			/*
+			 * todo: kernel not support fp, check double when
+			 * loading
+			 */
+			setnvalue(o, READ_NUMBER(S));
+			break;
+		case KTAP_TSTRING:
+			setsvalue(o, READ_STRING(S));
+			break;
+		default:
+			kp_error(S->ks, "ktap: load_constants: "
+					"unknow ktap_value\n");
+			return -1;
+			
+		}
+	}
+
+	n = READ_INT(S);
+	f->p = NEW_VECTOR(S, n * sizeof(ktap_proto));
+	f->sizep = n;
+	for (i = 0; i < n; i++)
+		f->p[i] = NULL;
+	for (i = 0; i < n; i++) {
+		f->p[i] = kp_newproto(S->ks);
+		if (load_function(S, f->p[i]))
+			return -1;
+	}
+
+	return 0;
+}
+
+
+static int load_upvalues(struct load_state *S, ktap_proto *f)
+{
+	int i,n;
+
+	n = READ_INT(S);
+	f->upvalues = NEW_VECTOR(S, n * sizeof(ktap_upvaldesc));
+	f->sizeupvalues = n;
+
+	for (i = 0; i < n; i++)
+		f->upvalues[i].name = NULL;
+
+	for (i = 0; i < n; i++) {
+		f->upvalues[i].instack = READ_BYTE(S);
+		f->upvalues[i].idx = READ_BYTE(S);
+	}
+
+	return 0;
+}
+
+static int load_debuginfo(struct load_state *S, ktap_proto *f)
+{
+	int i,n;
+
+	f->source = READ_STRING(S);
+	n = READ_INT(S);
+	f->sizelineinfo = n;
+	f->lineinfo = NEW_VECTOR(S, n * sizeof(int));
+	READ_VECTOR(S, f->lineinfo, n * sizeof(int));
+	n = READ_INT(S);
+	f->locvars = NEW_VECTOR(S, n * sizeof(struct ktap_locvar));
+	f->sizelocvars = n;
+	for (i = 0; i < n; i++)
+		f->locvars[i].varname = NULL;
+	for (i = 0; i < n; i++) {
+		f->locvars[i].varname = READ_STRING(S);
+		f->locvars[i].startpc = READ_INT(S);
+		f->locvars[i].endpc = READ_INT(S);
+	}
+	n = READ_INT(S);
+	for (i = 0; i < n; i++)
+		f->upvalues[i].name = READ_STRING(S);
+
+	return 0;
+}
+
+static int load_function(struct load_state *S, ktap_proto *f)
+{
+	f->linedefined = READ_INT(S);
+ 	f->lastlinedefined = READ_INT(S);
+	f->numparams = READ_BYTE(S);
+	f->is_vararg = READ_BYTE(S);
+	f->maxstacksize = READ_BYTE(S);
+	if (load_code(S, f))
+		return -1;
+	if (load_constants(S, f))
+		return -1;
+	if (load_upvalues(S, f))
+		return -1;
+	if (load_debuginfo(S, f))
+		return -1;
+
+	return 0;
+}
+
+
+#define error(S, why) \
+	kp_error(S->ks, "load failed: %s precompiled chunk\n", why)
+
+#define N0	KTAPC_HEADERSIZE
+#define N1	(sizeof(KTAP_SIGNATURE) - sizeof(char))
+#define N2	N1 + 2
+#define N3	N2 + 6
+
+static int load_header(struct load_state *S)
+{
+	u8 h[KTAPC_HEADERSIZE];
+	u8 s[KTAPC_HEADERSIZE];
+
+	kp_header(h);
+	READ_VECTOR(S, s, KTAPC_HEADERSIZE);
+
+	if (memcmp(h, s, N0) == 0)
+		return 0;
+	if (memcmp(h, s, N1) != 0)
+		error(S, "not a");
+	else if (memcmp(h, s, N2) != 0)
+		error(S, "version mismatch in");
+	else if (memcmp(h, s, N3) != 0)
+		error(S, "incompatible");
+	else
+		error(S,"corrupted");
+
+	return -1;
+}
+
+
+static int verify_code(struct load_state *S, ktap_proto *f)
+{
+	/* not support now */
+	return 0;
+}
+
+
+ktap_closure *kp_load(ktap_state *ks, unsigned char *buff)
+{
+	struct load_state S;
+	ktap_closure *cl;
+	ktap_lclosure *f;
+	int ret, i;
+
+	S.ks = ks;
+	S.buff = buff;
+	S.pos = 0;
+
+	ret = load_header(&S);
+	if (ret)
+		return NULL;
+
+	cl = kp_newlclosure(ks, 1);
+	if (!cl)
+		return cl;
+
+	/* put closure on the top, prepare to run with this closure */
+	setcllvalue(ks->top, cl);
+	incr_top(ks);
+
+	cl->l.p = kp_newproto(ks);
+	if (load_function(&S, cl->l.p))
+		return NULL;
+
+	if (cl->l.p->sizeupvalues != 1) {
+		ktap_proto *p = cl->l.p;
+		cl = kp_newlclosure(ks, cl->l.p->sizeupvalues);
+		cl->l.p = p;
+		setcllvalue(ks->top - 1, cl);
+	}
+
+	f = &cl->l;
+	for (i = 0; i < f->nupvalues; i++) {  /* initialize upvalues */
+		ktap_upval *up = kp_newupval(ks);
+		f->upvals[i] = up;
+	}
+
+	/* set global table as 1st upvalue of 'f' */
+	if (f->nupvalues == 1) {
+		ktap_table *reg = hvalue(&G(ks)->registry);
+		const ktap_value *gt = kp_table_getint(reg, KTAP_RIDX_GLOBALS);
+		setobj(f->upvals[0]->v, gt);
+	}
+
+	verify_code(&S, cl->l.p);
+	return cl;
+}
+
diff --git a/drivers/staging/ktap/interpreter/object.c b/drivers/staging/ktap/interpreter/object.c
new file mode 100644
index 000000000000..6538167a2b87
--- /dev/null
+++ b/drivers/staging/ktap/interpreter/object.c
@@ -0,0 +1,483 @@
+/*
+ * object.c - ktap object generic operation
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
+ *  - The part of code in this file is copied from lua initially.
+ *  - lua's MIT license is compatible with GPL.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifdef __KERNEL__
+#include "../include/ktap.h"
+#else
+#include "../include/ktap_types.h"
+#endif
+
+#ifdef __KERNEL__
+
+#define KTAP_ALLOC_FLAGS ((GFP_KERNEL | __GFP_NORETRY | __GFP_NOWARN) \
+			 & ~__GFP_WAIT)
+
+void *kp_malloc(ktap_state *ks, int size)
+{
+	void *addr;
+
+	/*
+	 * Normally we don't want to trace under memory pressure,
+	 * so we use a simple rule to handle memory allocation failure:
+	 *
+	 * retry until allocation success, this will make caller don't need
+	 * to handle the unlikely failure case, then ktap exit.
+	 *
+	 * In this approach, if user find there have memory allocation failure,
+	 * user should re-run the ktap script, or fix the memory pressure
+	 * issue, or figure out why the script need so many memory.
+	 *
+	 * Perhaps return pre-allocated stub memory trunk when allocate failed
+	 * is a better approch?
+	 */
+	addr = kmalloc(size, KTAP_ALLOC_FLAGS);
+	if (unlikely(!addr)) {
+		kp_error(ks, "kmalloc size %d failed, retry again\n", size);
+		printk("ktap kmalloc size %d failed, retry again\n", size);
+		dump_stack();
+		while (1) {
+			addr = kmalloc(size, KTAP_ALLOC_FLAGS);
+			if (addr)
+				break;
+		}
+		kp_printf(ks, "kmalloc retry success after failed, exit\n");
+	}
+
+	return addr;
+}
+
+void kp_free(ktap_state *ks, void *addr)
+{
+	kfree(addr);
+}
+
+void *kp_reallocv(ktap_state *ks, void *addr, int oldsize, int newsize)
+{
+	void *new_addr;
+
+	new_addr = krealloc(addr, newsize, KTAP_ALLOC_FLAGS);
+	if (unlikely(!new_addr)) {
+		kp_error(ks, "krealloc size %d failed, retry again\n", newsize);
+		printk("ktap krealloc size %d failed, retry again\n", newsize);
+		dump_stack();
+		while (1) {
+			new_addr = krealloc(addr, newsize, KTAP_ALLOC_FLAGS);
+			if (new_addr)
+				break;
+		}
+		kp_printf(ks, "krealloc retry success after failed, exit\n");
+	}
+
+	return new_addr;
+}
+
+void *kp_zalloc(ktap_state *ks, int size)
+{
+	void *addr;
+
+	addr = kzalloc(size, KTAP_ALLOC_FLAGS);
+	if (unlikely(!addr)) {
+		kp_error(ks, "kzalloc size %d failed, retry again\n", size);
+		printk("ktap kzalloc size %d failed, retry again\n", size);
+		dump_stack();
+		while (1) {
+			addr = kzalloc(size, KTAP_ALLOC_FLAGS);
+			if (addr)
+				break;
+		}
+		kp_printf(ks, "kzalloc retry success after failed, exit\n");
+	}
+
+	return addr;
+}
+#endif
+
+void kp_obj_dump(ktap_state *ks, const ktap_value *v)
+{
+	switch (ttype(v)) {
+	case KTAP_TNIL:
+		kp_puts(ks, "NIL");
+		break;
+	case KTAP_TNUMBER:
+		kp_printf(ks, "NUMBER %ld", nvalue(v));
+		break;
+	case KTAP_TBOOLEAN:
+		kp_printf(ks, "BOOLEAN %d", bvalue(v));
+		break;
+	case KTAP_TLIGHTUSERDATA:
+		kp_printf(ks, "LIGHTUSERDATA 0x%lx", (unsigned long)pvalue(v));
+		break;
+	case KTAP_TLCF:
+		kp_printf(ks, "LIGHTCFCUNTION 0x%lx", (unsigned long)fvalue(v));
+		break;
+	case KTAP_TSHRSTR:
+	case KTAP_TLNGSTR:
+		kp_printf(ks, "SHRSTR #%s", svalue(v));
+		break;
+	case KTAP_TUSERDATA:
+		kp_printf(ks, "USERDATA 0x%lx", (unsigned long)uvalue(v));
+		break;
+	case KTAP_TTABLE:
+		kp_printf(ks, "TABLE 0x%lx", (unsigned long)hvalue(v));
+		break;
+        default:
+		kp_printf(ks, "GCVALUE 0x%lx", (unsigned long)gcvalue(v));
+		break;
+	}
+}
+
+#ifdef __KERNEL__
+#include <linux/stacktrace.h>
+#include <linux/kallsyms.h>
+
+static void kp_btrace_dump(ktap_state *ks, ktap_btrace *bt)
+{
+	char str[KSYM_SYMBOL_LEN];
+	int i;
+
+	for (i = 0; i < bt->nr_entries; i++) {
+		unsigned long p = bt->entries[i];
+
+		if (p == ULONG_MAX)
+			break;
+
+		SPRINT_SYMBOL(str, p);
+		kp_printf(ks, "%s\n", str);
+	}
+}
+
+static int kp_btrace_equal(ktap_btrace *bt1, ktap_btrace *bt2)
+{
+	int i;
+
+	if (bt1->nr_entries != bt2->nr_entries)
+		return 0;
+
+	for (i = 0; i < bt1->nr_entries; i++) {
+		if (bt1->entries[i] != bt2->entries[i])
+			return 0;
+	}
+
+	return 1;
+}
+#endif
+
+void kp_showobj(ktap_state *ks, const ktap_value *v)
+{
+	switch (ttype(v)) {
+	case KTAP_TNIL:
+		kp_puts(ks, "nil");
+		break;
+	case KTAP_TNUMBER:
+		kp_printf(ks, "%ld", nvalue(v));
+		break;
+	case KTAP_TBOOLEAN:
+		kp_puts(ks, (bvalue(v) == 1) ? "true" : "false");
+		break;
+	case KTAP_TLIGHTUSERDATA:
+		kp_printf(ks, "0x%lx", (unsigned long)pvalue(v));
+		break;
+	case KTAP_TLCF:
+		kp_printf(ks, "0x%lx", (unsigned long)fvalue(v));
+		break;
+	case KTAP_TSHRSTR:
+	case KTAP_TLNGSTR:
+		kp_puts(ks, svalue(v));
+		break;
+	case KTAP_TUSERDATA:
+		kp_printf(ks, "0x%lx", (unsigned long)uvalue(v));
+		break;
+	case KTAP_TTABLE:
+		kp_table_dump(ks, hvalue(v));
+		break;
+#ifdef __KERNEL__
+	case KTAP_TEVENT:
+		kp_transport_event_write(ks, evalue(v));
+		break;
+	case KTAP_TBTRACE:
+		kp_btrace_dump(ks, btvalue(v));
+		break;
+	case KTAP_TAGGRTABLE:
+		kp_aggrtable_dump(ks, ahvalue(v));
+		break;
+	case KTAP_TAGGRACCVAL:
+		kp_aggraccval_dump(ks, aggraccvalue(v));
+		break;
+#endif
+        default:
+		kp_error(ks, "print unknown value type: %d\n", ttype(v));
+		break;
+	}
+}
+
+
+/*
+ * equality of ktap values. ks == NULL means raw equality
+ */
+int kp_equalobjv(ktap_state *ks, const ktap_value *t1, const ktap_value *t2)
+{
+	switch (ttype(t1)) {
+	case KTAP_TNIL:
+		return 1;
+	case KTAP_TNUMBER:
+		return nvalue(t1) == nvalue(t2);
+	case KTAP_TBOOLEAN:
+		return bvalue(t1) == bvalue(t2);  /* true must be 1 !! */
+	case KTAP_TLIGHTUSERDATA:
+		return pvalue(t1) == pvalue(t2);
+	case KTAP_TLCF:
+		return fvalue(t1) == fvalue(t2);
+	case KTAP_TSHRSTR:
+		return eqshrstr(rawtsvalue(t1), rawtsvalue(t2));
+	case KTAP_TLNGSTR:
+		return kp_tstring_eqlngstr(rawtsvalue(t1), rawtsvalue(t2));
+	case KTAP_TUSERDATA:
+		if (uvalue(t1) == uvalue(t2))
+			return 1;
+		else if (ks == NULL)
+			return 0;
+	case KTAP_TTABLE:
+		if (hvalue(t1) == hvalue(t2))
+			return 1;
+		else if (ks == NULL)
+			return 0;
+#ifdef __KERNEL__
+	case KTAP_TBTRACE:
+		return kp_btrace_equal(btvalue(t1), btvalue(t2));
+#endif
+	default:
+		return gcvalue(t1) == gcvalue(t2);
+	}
+
+	return 0;
+}
+
+/*
+ * ktap will not use lua's length operator on table meaning,
+ * also # is not for length operator any more in ktap.
+ *
+ * Quote from lua mannal:
+ * 2.5.5 - The Length Operator
+ *
+ * The length operator is denoted by the unary operator #.
+ * The length of a string is its number of bytes(that is,
+ * the usual meaning of string length when each character is one byte).
+ *
+ * The length of a table t is defined to be any integer index n
+ * such that t[n] is not nil and t[n+1] is nil; moreover, if t[1] is nil,
+ * n can be zero. For a regular array, with non-nil values from 1 to a given n,
+ * its length is exactly that n, the index of its last value. If the array has
+ * "holes" (that is, nil values between other non-nil values), then #t can be
+ * any of the indices that directly precedes a nil value
+ * (that is, it may consider any such nil value as the end of the array).
+ */
+int kp_objlen(ktap_state *ks, const ktap_value *v)
+{
+	switch(v->type) {
+	case KTAP_TTABLE:
+		return kp_table_length(ks, hvalue(v));
+	case KTAP_TSTRING:
+		return rawtsvalue(v)->tsv.len;
+	default:
+		kp_printf(ks, "cannot get length of type %d\n", v->type);
+		return -1;
+	}
+	return 0;
+}
+
+/* need to protect allgc field? */
+ktap_gcobject *kp_newobject(ktap_state *ks, int type, size_t size,
+			    ktap_gcobject **list)
+{
+	ktap_gcobject *o;
+
+	o = kp_malloc(ks, size);
+	if (list == NULL)
+		list = &G(ks)->allgc;
+
+	gch(o)->tt = type;
+	gch(o)->next = *list;
+	*list = o;
+
+	return o;
+}
+
+ktap_upval *kp_newupval(ktap_state *ks)
+{
+	ktap_upval *uv;
+
+	uv = &kp_newobject(ks, KTAP_TUPVAL, sizeof(ktap_upval), NULL)->uv;
+	uv->v = &uv->u.value;
+	setnilvalue(uv->v);
+	return uv;
+}
+
+static ktap_btrace *kp_newbacktrace(ktap_state *ks, ktap_gcobject **list)
+{
+	ktap_btrace *bt;
+
+	bt = &kp_newobject(ks, KTAP_TBTRACE, sizeof(ktap_btrace), list)->bt;
+	return bt;
+}
+
+void kp_objclone(ktap_state *ks, const ktap_value *o, ktap_value *newo,
+		 ktap_gcobject **list)
+{
+	if (ttisbtrace(o)) {
+		ktap_btrace *bt;
+		bt = kp_newbacktrace(ks, list);
+		bt->nr_entries = btvalue(o)->nr_entries;
+		memcpy(&bt->entries[0], &btvalue(o)->entries[0],
+					sizeof(bt->entries));
+		setbtvalue(newo, bt);
+	} else {
+		kp_error(ks, "cannot clone ktap value type %d\n", ttype(o));
+		setnilvalue(newo);
+	}
+}
+
+ktap_closure *kp_newlclosure(ktap_state *ks, int n)
+{
+	ktap_closure *cl;
+
+	cl = (ktap_closure *)kp_newobject(ks, KTAP_TLCL, sizeof(*cl), NULL);
+	cl->l.p = NULL;
+	cl->l.nupvalues = n;
+	while (n--)
+		cl->l.upvals[n] = NULL;
+
+	return cl;
+}
+
+static void free_proto(ktap_state *ks, ktap_proto *f)
+{
+	kp_free(ks, f->code);
+	kp_free(ks, f->p);
+	kp_free(ks, f->k);
+	kp_free(ks, f->lineinfo);
+	kp_free(ks, f->locvars);
+	kp_free(ks, f->upvalues);
+	kp_free(ks, f);
+}
+
+ktap_proto *kp_newproto(ktap_state *ks)
+{
+	ktap_proto *f;
+	f = (ktap_proto *)kp_newobject(ks, KTAP_TPROTO, sizeof(*f), NULL);
+	f->k = NULL;
+ 	f->sizek = 0;
+	f->p = NULL;
+	f->sizep = 0;
+	f->code = NULL;
+	f->cache = NULL;
+	f->sizecode = 0;
+	f->lineinfo = NULL;
+	f->sizelineinfo = 0;
+	f->upvalues = NULL;
+	f->sizeupvalues = 0;
+	f->numparams = 0;
+	f->is_vararg = 0;
+	f->maxstacksize = 0;
+	f->locvars = NULL;
+	f->sizelocvars = 0;
+	f->linedefined = 0;
+	f->lastlinedefined = 0;
+	f->source = NULL;
+	return f;
+}
+
+static ktap_udata *newudata(ktap_state *ks, size_t s)
+{
+	ktap_udata *u;
+
+	u = &kp_newobject(ks, KTAP_TUSERDATA, sizeof(ktap_udata) + s, NULL)->u;
+	u->uv.len = s;
+	return u;
+}
+
+void *kp_newuserdata(ktap_state *ks, size_t size)
+{
+	ktap_udata *u;
+
+	u = newudata(ks, size);
+	return u + 1;
+}
+
+void kp_free_gclist(ktap_state *ks, ktap_gcobject *o)
+{
+	while (o) {
+		ktap_gcobject *next;
+
+		next = gch(o)->next;
+		switch (gch(o)->tt) {
+		case KTAP_TTABLE:
+			kp_table_free(ks, (ktap_table *)o);
+			break;
+		case KTAP_TPROTO:
+			free_proto(ks, (ktap_proto *)o);
+			break;
+#ifdef __KERNEL__
+		case KTAP_TAGGRTABLE:
+			kp_aggrtable_free(ks, (ktap_aggrtable *)o);
+			break;
+#endif
+		default:
+			kp_free(ks, o);
+		}
+		o = next;
+	}
+}
+
+void kp_free_all_gcobject(ktap_state *ks)
+{
+	kp_free_gclist(ks, G(ks)->allgc);
+	G(ks)->allgc = NULL;
+}
+
+/******************************************************************************/
+
+/*
+ * make header for precompiled chunks
+ * if you change the code below be sure to update load_header and FORMAT above
+ * and KTAPC_HEADERSIZE in ktap_types.h
+ */
+void kp_header(u8 *h)
+{
+	int x = 1;
+
+	memcpy(h, KTAP_SIGNATURE, sizeof(KTAP_SIGNATURE) - sizeof(char));
+	h += sizeof(KTAP_SIGNATURE) - sizeof(char);
+	*h++ = (u8)VERSION;
+	*h++ = (u8)FORMAT;
+	*h++ = (u8)(*(char*)&x);                    /* endianness */
+	*h++ = (u8)(sizeof(int));
+	*h++ = (u8)(sizeof(size_t));
+	*h++ = (u8)(sizeof(ktap_instruction));
+	*h++ = (u8)(sizeof(ktap_number));
+	*h++ = (u8)(((ktap_number)0.5) == 0); /* is ktap_number integral? */
+	memcpy(h, KTAPC_TAIL, sizeof(KTAPC_TAIL) - sizeof(char));
+}
+
+
diff --git a/drivers/staging/ktap/interpreter/opcode.c b/drivers/staging/ktap/interpreter/opcode.c
new file mode 100644
index 000000000000..2f44855fcad2
--- /dev/null
+++ b/drivers/staging/ktap/interpreter/opcode.c
@@ -0,0 +1,127 @@
+/*
+ * opcode.c
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
+ *  - The part of code in this file is copied from lua initially.
+ *  - lua's MIT license is compatible with GPL.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include "../include/ktap_types.h"
+#include "../include/ktap_opcodes.h"
+
+const char *const ktap_opnames[NUM_OPCODES + 1] = {
+  "MOVE",
+  "LOADK",
+  "LOADKX",
+  "LOADBOOL",
+  "LOADNIL",
+  "GETUPVAL",
+  "GETTABUP",
+  "GETTABLE",
+  "SETTABUP",
+  "SETTABUP_INCR",
+  "SETUPVAL",
+  "SETTABLE",
+  "SETTABLE_INCR",
+  "NEWTABLE",
+  "SELF",
+  "ADD",
+  "SUB",
+  "MUL",
+  "DIV",
+  "MOD",
+  "POW",
+  "UNM",
+  "NOT",
+  "LEN",
+  "CONCAT",
+  "JMP",
+  "EQ",
+  "LT",
+  "LE",
+  "TEST",
+  "TESTSET",
+  "CALL",
+  "TAILCALL",
+  "RETURN",
+  "FORLOOP",
+  "FORPREP",
+  "TFORCALL",
+  "TFORLOOP",
+  "SETLIST",
+  "CLOSURE",
+  "VARARG",
+  "EXTRAARG",
+
+  "EVENT",
+  "EVENT_NAME",
+  "EVENT_ARG", /* arg1, arg2 .. arg9 */
+  NULL
+};
+
+
+#define opmode(t,a,b,c,m) (((t)<<7) | ((a)<<6) | ((b)<<4) | ((c)<<2) | (m))
+
+const u8 ktap_opmodes[NUM_OPCODES] = {
+/*       T  A    B       C     mode                opcode       */
+  opmode(0, 1, OpArgR, OpArgN, iABC)            /* OP_MOVE */
+ ,opmode(0, 1, OpArgK, OpArgN, iABx)            /* OP_LOADK */
+ ,opmode(0, 1, OpArgN, OpArgN, iABx)            /* OP_LOADKX */
+ ,opmode(0, 1, OpArgU, OpArgU, iABC)            /* OP_LOADBOOL */
+ ,opmode(0, 1, OpArgU, OpArgN, iABC)            /* OP_LOADNIL */
+ ,opmode(0, 1, OpArgU, OpArgN, iABC)            /* OP_GETUPVAL */
+ ,opmode(0, 1, OpArgU, OpArgK, iABC)            /* OP_GETTABUP */
+ ,opmode(0, 1, OpArgR, OpArgK, iABC)            /* OP_GETTABLE */
+ ,opmode(0, 0, OpArgK, OpArgK, iABC)            /* OP_SETTABUP */
+ ,opmode(0, 0, OpArgU, OpArgN, iABC)            /* OP_SETUPVAL */
+ ,opmode(0, 0, OpArgK, OpArgK, iABC)            /* OP_SETTABLE */
+ ,opmode(0, 1, OpArgU, OpArgU, iABC)            /* OP_NEWTABLE */
+ ,opmode(0, 1, OpArgR, OpArgK, iABC)            /* OP_SELF */
+ ,opmode(0, 1, OpArgK, OpArgK, iABC)            /* OP_ADD */
+ ,opmode(0, 1, OpArgK, OpArgK, iABC)            /* OP_SUB */
+ ,opmode(0, 1, OpArgK, OpArgK, iABC)            /* OP_MUL */
+ ,opmode(0, 1, OpArgK, OpArgK, iABC)            /* OP_DIV */
+ ,opmode(0, 1, OpArgK, OpArgK, iABC)            /* OP_MOD */
+ ,opmode(0, 1, OpArgK, OpArgK, iABC)            /* OP_POW */
+ ,opmode(0, 1, OpArgR, OpArgN, iABC)            /* OP_UNM */
+ ,opmode(0, 1, OpArgR, OpArgN, iABC)            /* OP_NOT */
+ ,opmode(0, 1, OpArgR, OpArgN, iABC)            /* OP_LEN */
+ ,opmode(0, 1, OpArgR, OpArgR, iABC)            /* OP_CONCAT */
+ ,opmode(0, 0, OpArgR, OpArgN, iAsBx)           /* OP_JMP */
+ ,opmode(1, 0, OpArgK, OpArgK, iABC)            /* OP_EQ */
+ ,opmode(1, 0, OpArgK, OpArgK, iABC)            /* OP_LT */
+ ,opmode(1, 0, OpArgK, OpArgK, iABC)            /* OP_LE */
+ ,opmode(1, 0, OpArgN, OpArgU, iABC)            /* OP_TEST */
+ ,opmode(1, 1, OpArgR, OpArgU, iABC)            /* OP_TESTSET */
+ ,opmode(0, 1, OpArgU, OpArgU, iABC)            /* OP_CALL */
+ ,opmode(0, 1, OpArgU, OpArgU, iABC)            /* OP_TAILCALL */
+ ,opmode(0, 0, OpArgU, OpArgN, iABC)            /* OP_RETURN */
+ ,opmode(0, 1, OpArgR, OpArgN, iAsBx)           /* OP_FORLOOP */
+ ,opmode(0, 1, OpArgR, OpArgN, iAsBx)           /* OP_FORPREP */
+ ,opmode(0, 0, OpArgN, OpArgU, iABC)            /* OP_TFORCALL */
+ ,opmode(0, 1, OpArgR, OpArgN, iAsBx)           /* OP_TFORLOOP */
+ ,opmode(0, 0, OpArgU, OpArgU, iABC)            /* OP_SETLIST */
+ ,opmode(0, 1, OpArgU, OpArgN, iABx)            /* OP_CLOSURE */
+ ,opmode(0, 1, OpArgU, OpArgN, iABC)            /* OP_VARARG */
+ ,opmode(0, 0, OpArgU, OpArgU, iAx)             /* OP_EXTRAARG */
+ ,opmode(0, 1, OpArgR, OpArgK, iABC)            /* OP_EVENT */
+};
+
+
diff --git a/drivers/staging/ktap/interpreter/strfmt.c b/drivers/staging/ktap/interpreter/strfmt.c
new file mode 100644
index 000000000000..2c1e7618fef4
--- /dev/null
+++ b/drivers/staging/ktap/interpreter/strfmt.c
@@ -0,0 +1,196 @@
+/*
+ * strfmt.c - printf implementation
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
+ *  - The part of code in this file is copied from lua initially.
+ *  - lua's MIT license is compatible with GPL.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/ctype.h>
+#include <linux/kallsyms.h>
+#include "../include/ktap.h"
+
+/* macro to `unsign' a character */
+#define uchar(c)	((unsigned char)(c))
+
+#define L_ESC		'%'
+
+/* valid flags in a format specification */
+#define FLAGS	"-+ #0"
+
+#define INTFRMLEN	"ll"
+#define INTFRM_T	long long
+
+/*
+ * maximum size of each format specification (such as '%-099.99d')
+ * (+10 accounts for %99.99x plus margin of error)
+ */
+#define MAX_FORMAT	(sizeof(FLAGS) + sizeof(INTFRMLEN) + 10)
+
+static const char *scanformat(ktap_state *ks, const char *strfrmt, char *form)
+{
+	const char *p = strfrmt;
+	while (*p != '\0' && strchr(FLAGS, *p) != NULL)
+		p++;  /* skip flags */
+
+	if ((size_t)(p - strfrmt) >= sizeof(FLAGS)/sizeof(char)) {
+		kp_error(ks, "invalid format (repeated flags)\n");
+		return NULL;
+	}
+
+	if (isdigit(uchar(*p)))
+		p++;  /* skip width */
+
+	if (isdigit(uchar(*p)))
+		p++;  /* (2 digits at most) */
+
+	if (*p == '.') {
+		p++;
+		if (isdigit(uchar(*p)))
+			p++;  /* skip precision */
+		if (isdigit(uchar(*p)))
+			p++;  /* (2 digits at most) */
+	}
+
+	if (isdigit(uchar(*p))) {
+		kp_error(ks, "invalid format (width or precision too long)\n");
+		return NULL;
+	}
+
+	*(form++) = '%';
+	memcpy(form, strfrmt, (p - strfrmt + 1) * sizeof(char));
+	form += p - strfrmt + 1;
+	*form = '\0';
+	return p;
+}
+
+
+/*
+ * add length modifier into formats
+ */
+static void addlenmod(char *form, const char *lenmod)
+{
+	size_t l = strlen(form);
+	size_t lm = strlen(lenmod);
+	char spec = form[l - 1];
+
+	strcpy(form + l - 1, lenmod);
+	form[l + lm - 1] = spec;
+	form[l + lm] = '\0';
+}
+
+
+static void ktap_argerror(ktap_state *ks, int narg, const char *extramsg)
+{
+	kp_error(ks, "bad argument #%d: (%s)\n", narg, extramsg);
+}
+
+int kp_strfmt(ktap_state *ks, struct trace_seq *seq)
+{
+	int arg = 1;
+	size_t sfl;
+	ktap_value *arg_fmt = kp_arg(ks, 1);
+	int argnum = kp_arg_nr(ks);
+	const char *strfrmt, *strfrmt_end;
+
+	strfrmt = svalue(arg_fmt);
+	sfl = rawtsvalue(arg_fmt)->tsv.len;
+	strfrmt_end = strfrmt + sfl;
+
+	while (strfrmt < strfrmt_end) {
+		if (*strfrmt != L_ESC)
+			trace_seq_putc(seq, *strfrmt++);
+		else if (*++strfrmt == L_ESC)
+			trace_seq_putc(seq, *strfrmt++);
+		else { /* format item */
+			char form[MAX_FORMAT];
+
+			if (++arg > argnum) {
+				ktap_argerror(ks, arg, "no value");
+				return -1;
+			}
+
+			strfrmt = scanformat(ks, strfrmt, form);
+			switch (*strfrmt++) {
+			case 'c':
+				trace_seq_printf(seq, form,
+						 nvalue(kp_arg(ks, arg)));
+				break;
+			case 'd':  case 'i': {
+				ktap_number n = nvalue(kp_arg(ks, arg));
+				INTFRM_T ni = (INTFRM_T)n;
+				addlenmod(form, INTFRMLEN);
+				trace_seq_printf(seq, form, ni);
+				break;
+			}
+			case 'p': {
+				char str[KSYM_SYMBOL_LEN];
+				SPRINT_SYMBOL(str, nvalue(kp_arg(ks, arg)));
+				trace_seq_puts(seq, str);
+				break;
+			}
+			case 'o':  case 'u':  case 'x':  case 'X': {
+				ktap_number n = nvalue(kp_arg(ks, arg));
+				unsigned INTFRM_T ni = (unsigned INTFRM_T)n;
+				addlenmod(form, INTFRMLEN);
+				trace_seq_printf(seq, form, ni);
+				break;
+			}
+			case 's': {
+				ktap_value *v = kp_arg(ks, arg);
+				const char *s;
+				size_t l;
+
+				if (isnil(v)) {
+					trace_seq_puts(seq, "nil");
+					return 0;
+				}
+
+				if (ttisevent(v)) {
+					kp_event_tostring(ks, seq);
+					return 0;
+				}
+
+				s = svalue(v);
+				l = rawtsvalue(v)->tsv.len;
+				if (!strchr(form, '.') && l >= 100) {
+					/*
+					 * no precision and string is too long
+					 * to be formatted;
+					 * keep original string
+					 */
+					trace_seq_puts(seq, s);
+					break;
+				} else {
+					trace_seq_printf(seq, form, s);
+					break;
+				}
+			}
+			default: /* also treat cases `pnLlh' */
+				kp_error(ks, "invalid option " KTAP_QL("%%%c")
+					     " to " KTAP_QL("format"),
+					     *(strfrmt - 1));
+			}
+		}
+	}
+
+	return 0;
+}
+
diff --git a/drivers/staging/ktap/interpreter/table.c b/drivers/staging/ktap/interpreter/table.c
new file mode 100644
index 000000000000..4e83947ba02d
--- /dev/null
+++ b/drivers/staging/ktap/interpreter/table.c
@@ -0,0 +1,1292 @@
+/*
+ * table.c - ktap table data structure manipulation function
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
+ *  - The part of code in this file is copied from lua initially.
+ *  - lua's MIT license is compatible with GPL.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifdef __KERNEL__
+#include "../include/ktap.h"
+#include <linux/spinlock.h>
+#include <linux/kallsyms.h>
+#include <linux/sort.h>
+#else
+#include "../include/ktap_types.h"
+
+static inline void sort(void *base, size_t num, size_t size,
+			int (*cmp_func)(const void *, const void *),
+			void (*swap_func)(void *, void *, int size))
+{}
+#endif
+
+
+#ifdef __KERNEL__
+#define kp_table_lock_init(t)	\
+	do {	\
+		t->lock = (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED;	\
+	} while (0)
+#define kp_table_lock(t)	\
+	do {	\
+		local_irq_save(flags);	\
+		arch_spin_lock(&t->lock);	\
+	} while (0)
+#define kp_table_unlock(t)	\
+	do {	\
+		arch_spin_unlock(&t->lock);	\
+		local_irq_restore(flags);	\
+	} while (0)
+
+#else
+#define kp_table_lock_init(t)
+#define kp_table_lock(t)
+#define kp_table_unlock(t)
+#endif
+
+#define MAXBITS         30
+#define MAXASIZE        (1 << MAXBITS)
+
+
+#define NILCONSTANT     {NULL}, KTAP_TNIL
+const struct ktap_value ktap_nilobjectv = {NILCONSTANT};
+#define ktap_nilobject	(&ktap_nilobjectv)
+
+static const ktap_tnode dummynode_ = {
+	{NILCONSTANT}, /* value */
+	{{NILCONSTANT, NULL}}, /* key */
+};
+
+#define gnode(t,i)      (&(t)->node[i])
+#define gkey(n)         (&(n)->i_key.tvk)
+#define gval(n)         (&(n)->i_val)
+#define gnext(n)        ((n)->i_key.nk.next)
+
+#define twoto(x)        (1<<(x))
+#define sizenode(t)	(twoto((t)->lsizenode))
+
+#define hashpow2(t,n)           (gnode(t, lmod((n), sizenode(t))))
+
+#define hashmod(t,n)		(gnode(t, ((n) % ((sizenode(t)-1)|1))))
+
+#define hashstr(t,str)          hashpow2(t, (str)->tsv.hash)
+#define hashboolean(t,p)        hashpow2(t, p)
+#define hashnum(t, n)		hashmod(t, (unsigned int)n)
+#define hashpointer(t,p)	hashmod(t, (unsigned long)(p))
+
+#define dummynode	(&dummynode_)
+#define isdummy(n)	((n) == dummynode)
+
+static void table_setint(ktap_state *ks, ktap_table *t, int key, ktap_value *v);
+static ktap_value *table_set(ktap_state *ks, ktap_table *t,
+			     const ktap_value *key);
+static void setnodevector(ktap_state *ks, ktap_table *t, int size);
+
+static int ceillog2(unsigned int x)
+{
+	static const u8 log_2[256] = {
+	0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+	6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
+	7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+	7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+	8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+	8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+	8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+	8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
+	};
+
+	int l = 0;
+
+	x--;
+	while (x >= 256) { l += 8; x >>= 8; }
+	return l + log_2[x];
+}
+
+
+ktap_table *kp_table_new(ktap_state *ks)
+{
+	ktap_table *t = &kp_newobject(ks, KTAP_TTABLE, sizeof(ktap_table),
+				      NULL)->h;
+	t->flags = (u8)(~0);
+	t->array = NULL;
+	t->sizearray = 0;
+	t->node = (ktap_tnode *)dummynode;
+	t->gclist = NULL;
+	setnodevector(ks, t, 0);
+
+	kp_table_lock_init(t);
+	return t;
+}
+
+static const ktap_value *table_getint(ktap_table *t, int key)
+{
+	ktap_tnode *n;
+
+	if ((unsigned int)(key - 1) < (unsigned int)t->sizearray)
+		return &t->array[key - 1];
+
+	n = hashnum(t, key);
+	do {
+		if (ttisnumber(gkey(n)) && nvalue(gkey(n)) == key)
+			return gval(n);
+		else
+			n = gnext(n);
+	} while (n);
+
+	return ktap_nilobject;
+}
+
+const ktap_value *kp_table_getint(ktap_table *t, int key)
+{
+	const ktap_value *val;
+	unsigned long __maybe_unused flags;
+
+	kp_table_lock(t);
+	val = table_getint(t, key);
+	kp_table_unlock(t);
+
+	return val;
+}
+
+static ktap_tnode *mainposition (const ktap_table *t, const ktap_value *key)
+{
+	switch (ttype(key)) {
+	case KTAP_TNUMBER:
+		return hashnum(t, nvalue(key));
+	case KTAP_TLNGSTR: {
+		ktap_string *s = rawtsvalue(key);
+		if (s->tsv.extra == 0) {  /* no hash? */
+			s->tsv.hash = kp_string_hash(getstr(s), s->tsv.len,
+						     s->tsv.hash);
+			s->tsv.extra = 1;  /* now it has its hash */
+		}
+		return hashstr(t, rawtsvalue(key));
+		}
+	case KTAP_TSHRSTR:
+		return hashstr(t, rawtsvalue(key));
+	case KTAP_TBOOLEAN:
+		return hashboolean(t, bvalue(key));
+	case KTAP_TLIGHTUSERDATA:
+		return hashpointer(t, pvalue(key));
+	case KTAP_TLCF:
+		return hashpointer(t, fvalue(key));
+	case KTAP_TBTRACE:
+		/* use first entry as hash key, cannot use gcvalue as key */
+		return hashpointer(t, btvalue(key)->entries[0]);
+	default:
+		return hashpointer(t, gcvalue(key));
+	}
+}
+
+static int arrayindex(const ktap_value *key)
+{
+	if (ttisnumber(key)) {
+		ktap_number n = nvalue(key);
+		int k = (int)n;
+		if ((ktap_number)k == n)
+			return k;
+	}
+
+	/* `key' did not match some condition */
+	return -1;
+}
+
+/*
+ * returns the index of a `key' for table traversals. First goes all
+ * elements in the array part, then elements in the hash part. The
+ * beginning of a traversal is signaled by -1.
+ */
+static int findindex(ktap_state *ks, ktap_table *t, StkId key)
+{
+	int i;
+
+	if (ttisnil(key))
+		return -1;  /* first iteration */
+
+	i = arrayindex(key);
+	if (i > 0 && i <= t->sizearray)  /* is `key' inside array part? */
+		return i - 1;  /* yes; that's the index (corrected to C) */
+	else {
+		ktap_tnode *n = mainposition(t, key);
+		for (;;) {  /* check whether `key' is somewhere in the chain */
+			/* key may be dead already, but it is ok to use it in `next' */
+			if (kp_equalobjv(ks, gkey(n), key)) {
+				i = n - gnode(t, 0);  /* key index in hash table */
+				/* hash elements are numbered after array ones */
+				return i + t->sizearray;
+			} else
+				n = gnext(n);
+
+			if (n == NULL)
+				/* key not found */
+				kp_error(ks, "invalid table key to next");
+		}
+	}
+}
+
+int kp_table_next(ktap_state *ks, ktap_table *t, StkId key)
+{
+	unsigned long __maybe_unused flags;
+	int i;
+
+	kp_table_lock(t);
+
+	i = findindex(ks, t, key);  /* find original element */
+
+	for (i++; i < t->sizearray; i++) {  /* try first array part */
+	        if (!ttisnil(&t->array[i])) {  /* a non-nil value? */
+			setnvalue(key, i+1);
+			setobj(key+1, &t->array[i]);
+			kp_table_unlock(t);
+			return 1;
+		}
+	}
+
+	for (i -= t->sizearray; i < sizenode(t); i++) {  /* then hash part */
+		if (!ttisnil(gval(gnode(t, i)))) {  /* a non-nil value? */
+			setobj(key, gkey(gnode(t, i)));
+			setobj(key+1, gval(gnode(t, i)));
+			kp_table_unlock(t);
+			return 1;
+		}
+	}
+
+	kp_table_unlock(t);
+	return 0;  /* no more elements */
+}
+
+
+
+static int computesizes (int nums[], int *narray)
+{
+	int i;
+	int twotoi;  /* 2^i */
+	int a = 0;  /* number of elements smaller than 2^i */
+	int na = 0;  /* number of elements to go to array part */
+	int n = 0;  /* optimal size for array part */
+
+	for (i = 0, twotoi = 1; twotoi/2 < *narray; i++, twotoi *= 2) {
+		if (nums[i] > 0) {
+			a += nums[i];
+			/* more than half elements present? */
+			if (a > twotoi/2) {
+				/* optimal size (till now) */
+				n = twotoi;
+				/* 
+				 * all elements smaller than n will go to
+				 * array part
+				 */
+				na = a;
+			}
+		}
+		if (a == *narray)
+			break;  /* all elements already counted */
+	}
+	*narray = n;
+	return na;
+}
+
+
+static int countint(const ktap_value *key, int *nums)
+{
+	int k = arrayindex(key);
+
+	/* is `key' an appropriate array index? */
+	if (0 < k && k <= MAXASIZE) {
+		nums[ceillog2(k)]++;  /* count as such */
+		return 1;
+	} else
+		return 0;
+}
+
+
+static int numusearray(const ktap_table *t, int *nums)
+{
+	int lg;
+	int ttlg;  /* 2^lg */
+	int ause = 0;  /* summation of `nums' */
+	int i = 1;  /* count to traverse all array keys */
+
+	/* for each slice */
+	for (lg=0, ttlg=1; lg <= MAXBITS; lg++, ttlg *= 2) {
+		int lc = 0;  /* counter */
+		int lim = ttlg;
+
+		if (lim > t->sizearray) {
+			lim = t->sizearray;  /* adjust upper limit */
+			if (i > lim)
+				break;  /* no more elements to count */
+		}
+
+		/* count elements in range (2^(lg-1), 2^lg] */
+		for (; i <= lim; i++) {
+			if (!ttisnil(&t->array[i-1]))
+				lc++;
+		}
+		nums[lg] += lc;
+		ause += lc;
+	}
+	return ause;
+}
+
+static int numusehash(const ktap_table *t, int *nums, int *pnasize)
+{
+	int totaluse = 0;  /* total number of elements */
+	int ause = 0;  /* summation of `nums' */
+	int i = sizenode(t);
+
+	while (i--) {
+		ktap_tnode *n = &t->node[i];
+		if (!isnil(gval(n))) {
+			ause += countint(gkey(n), nums);
+			totaluse++;
+		}
+	}
+
+	*pnasize += ause;
+	return totaluse;
+}
+
+
+static void setarrayvector(ktap_state *ks, ktap_table *t, int size)
+{
+	int i;
+
+	kp_realloc(ks, t->array, t->sizearray, size, ktap_value);
+	for (i = t->sizearray; i < size; i++)
+		setnilvalue(&t->array[i]);
+
+	t->sizearray = size;
+}
+
+static void setnodevector(ktap_state *ks, ktap_table *t, int size)
+{
+	int lsize;
+
+	if (size == 0) {  /* no elements to hash part? */
+		t->node = (ktap_tnode *)dummynode;  /* use common `dummynode' */
+		lsize = 0;
+	} else {
+		int i;
+		lsize = ceillog2(size);
+		if (lsize > MAXBITS) {
+			kp_error(ks, "table overflow\n");
+			return;
+		}
+
+		size = twoto(lsize);
+		t->node = kp_malloc(ks, size * sizeof(ktap_tnode));
+		for (i = 0; i < size; i++) {
+			ktap_tnode *n = gnode(t, i);
+			gnext(n) = NULL;
+			setnilvalue(gkey(n));
+			setnilvalue(gval(n));
+		}
+	}
+
+	t->lsizenode = (u8)lsize;
+	t->lastfree = gnode(t, size);  /* all positions are free */
+}
+
+static void table_resize(ktap_state *ks, ktap_table *t, int nasize, int nhsize)
+{
+	int i;
+	int oldasize = t->sizearray;
+	int oldhsize = t->lsizenode;
+	ktap_tnode *nold = t->node;  /* save old hash ... */
+
+#ifdef __KERNEL__
+	kp_verbose_printf(ks, "table resize, nasize: %d, nhsize: %d\n",
+				nasize, nhsize);
+#endif
+
+	if (nasize > oldasize)  /* array part must grow? */
+		setarrayvector(ks, t, nasize);
+
+	/* create new hash part with appropriate size */
+	setnodevector(ks, t, nhsize);
+
+	if (nasize < oldasize) {  /* array part must shrink? */
+		t->sizearray = nasize;
+		/* re-insert elements from vanishing slice */
+		for (i=nasize; i<oldasize; i++) {
+			if (!ttisnil(&t->array[i]))
+				table_setint(ks, t, i + 1, &t->array[i]);
+		}
+
+		/* shrink array */
+		kp_realloc(ks, t->array, oldasize, nasize, ktap_value);
+	}
+
+	/* re-insert elements from hash part */
+	for (i = twoto(oldhsize) - 1; i >= 0; i--) {
+		ktap_tnode *old = nold+i;
+		if (!ttisnil(gval(old))) {
+			/*
+			 * doesn't need barrier/invalidate cache, as entry was
+			 * already present in the table
+			 */
+			setobj(table_set(ks, t, gkey(old)), gval(old));
+		}
+	}
+
+	if (!isdummy(nold))
+		kp_free(ks, nold); /* free old array */
+}
+
+void kp_table_resize(ktap_state *ks, ktap_table *t, int nasize, int nhsize)
+{
+	unsigned long __maybe_unused flags;
+
+	kp_table_lock(t);
+	table_resize(ks, t, nasize, nhsize);
+	kp_table_unlock(t);
+}
+
+void kp_table_resizearray(ktap_state *ks, ktap_table *t, int nasize)
+{
+	unsigned long __maybe_unused flags;
+	int nsize;
+
+	kp_table_lock(t);
+
+	nsize = isdummy(t->node) ? 0 : sizenode(t);
+	table_resize(ks, t, nasize, nsize);
+
+	kp_table_unlock(t);
+}
+
+static void rehash(ktap_state *ks, ktap_table *t, const ktap_value *ek)
+{
+	int nasize, na;
+	/* nums[i] = number of keys with 2^(i-1) < k <= 2^i */
+	int nums[MAXBITS+1];
+	int i;
+	int totaluse;
+
+	for (i = 0; i <= MAXBITS; i++)
+		nums[i] = 0;  /* reset counts */
+
+	nasize = numusearray(t, nums);  /* count keys in array part */
+	totaluse = nasize;  /* all those keys are integer keys */
+	totaluse += numusehash(t, nums, &nasize);  /* count keys in hash part */
+	/* count extra key */
+	nasize += countint(ek, nums);
+	totaluse++;
+	/* compute new size for array part */
+	na = computesizes(nums, &nasize);
+	/* resize the table to new computed sizes */
+	table_resize(ks, t, nasize, totaluse - na);
+}
+
+
+static ktap_tnode *getfreepos(ktap_table *t)
+{
+	while (t->lastfree > t->node) {
+		t->lastfree--;
+		if (isnil(gkey(t->lastfree)))
+			return t->lastfree;
+	}
+	return NULL;  /* could not find a free place */
+}
+
+
+static ktap_value *table_newkey(ktap_state *ks, ktap_table *t,
+				const ktap_value *key)
+{
+	ktap_tnode *mp;
+	ktap_value newkey;
+
+	mp = mainposition(t, key);
+	if (!isnil(gval(mp)) || isdummy(mp)) {  /* main position is taken? */
+		ktap_tnode *othern;
+		ktap_tnode *n = getfreepos(t);  /* get a free place */
+		if (n == NULL) {  /* cannot find a free place? */
+			rehash(ks, t, key);  /* grow table */
+			/* whatever called 'newkey' take care of TM cache and GC barrier */
+			return table_set(ks, t, key);  /* insert key into grown table */
+		}
+
+		othern = mainposition(t, gkey(mp));
+		if (othern != mp) {  /* is colliding node out of its main position? */
+			/* yes; move colliding node into free position */
+			while (gnext(othern) != mp)
+				othern = gnext(othern);  /* find previous */
+			gnext(othern) = n;  /* redo the chain with `n' in place of `mp' */
+			*n = *mp;  /* copy colliding node into free pos. (mp->next also goes) */
+			gnext(mp) = NULL;  /* now `mp' is free */
+			setnilvalue(gval(mp));
+		} else {  /* colliding node is in its own main position */
+			/* new node will go into free position */
+			gnext(n) = gnext(mp);  /* chain new position */
+			gnext(mp) = n;
+			mp = n;
+		}
+	}
+
+	/* special handling for cloneable object, maily for btrace object */
+	if (ttisclone(key))
+		kp_objclone(ks, key, &newkey, &t->gclist);
+	else
+		newkey = *key;
+
+	setobj(gkey(mp), &newkey);
+	return gval(mp);
+}
+
+
+/*
+ * search function for short strings
+ */
+static const ktap_value *table_getstr(ktap_table *t, ktap_string *key)
+{
+	ktap_tnode *n = hashstr(t, key);
+
+	do {  /* check whether `key' is somewhere in the chain */
+		if (ttisshrstring(gkey(n)) && eqshrstr(rawtsvalue(gkey(n)),
+								key))
+			return gval(n);  /* that's it */
+		else
+			n = gnext(n);
+	} while (n);
+
+	return ktap_nilobject;
+}
+
+
+/*
+ * main search function
+ */
+static const ktap_value *table_get(ktap_table *t, const ktap_value *key)
+{
+	switch (ttype(key)) {
+	case KTAP_TNIL:
+		return ktap_nilobject;
+	case KTAP_TSHRSTR:
+		return table_getstr(t, rawtsvalue(key));
+	case KTAP_TNUMBER: {
+		ktap_number n = nvalue(key);
+		int k = (int)n;
+		if ((ktap_number)k == nvalue(key)) /* index is int? */
+			return table_getint(t, k);  /* use specialized version */
+		/* else go through */
+	}
+	default: {
+		ktap_tnode *n = mainposition(t, key);
+		do {  /* check whether `key' is somewhere in the chain */
+			if (rawequalobj(gkey(n), key))
+				return gval(n);  /* that's it */
+			else
+				n = gnext(n);
+		} while (n);
+
+		return ktap_nilobject;
+	}
+	}
+}
+
+const ktap_value *kp_table_get(ktap_table *t, const ktap_value *key)
+{
+	const ktap_value *val;
+	unsigned long __maybe_unused flags;
+
+	kp_table_lock(t);
+	val = table_get(t, key);
+	kp_table_unlock(t);
+
+	return val;
+}
+
+static ktap_value *table_set(ktap_state *ks, ktap_table *t,
+			     const ktap_value *key)
+{
+	const ktap_value *p = table_get(t, key);
+
+	if (p != ktap_nilobject)
+		return (ktap_value *)p;
+	else
+		return table_newkey(ks, t, key);
+}
+
+void kp_table_setvalue(ktap_state *ks, ktap_table *t,
+		       const ktap_value *key, ktap_value *val)
+{
+	unsigned long __maybe_unused flags;
+
+	if (isnil(key)) {
+		kp_printf(ks, "table index is nil\n");
+		kp_exit(ks);
+		return;
+	}
+
+	kp_table_lock(t);
+	setobj(table_set(ks, t, key), val);
+	kp_table_unlock(t);
+}
+
+static void table_setint(ktap_state *ks, ktap_table *t, int key, ktap_value *v)
+{
+	const ktap_value *p;
+	ktap_value *cell;
+
+	p = table_getint(t, key);
+
+	if (p != ktap_nilobject)
+		cell = (ktap_value *)p;
+	else {
+		ktap_value k;
+		setnvalue(&k, key);
+		cell = table_newkey(ks, t, &k);
+	}
+
+	setobj(cell, v);
+}
+
+void kp_table_setint(ktap_state *ks, ktap_table *t, int key, ktap_value *val)
+{
+	unsigned long __maybe_unused flags;
+
+	kp_table_lock(t);
+	table_setint(ks, t, key, val);
+	kp_table_unlock(t);
+}
+
+void kp_table_atomic_inc(ktap_state *ks, ktap_table *t, ktap_value *key, int n)
+{
+	unsigned long __maybe_unused flags;
+	ktap_value *v;
+
+	if (isnil(key)) {
+		kp_printf(ks, "table index is nil\n");
+		kp_exit(ks);
+		return;
+	}
+
+	kp_table_lock(t);
+
+	v = table_set(ks, t, key);
+	if (isnil(v)) {
+		setnvalue(v, n);
+	} else
+		setnvalue(v, nvalue(v) + n);
+
+	kp_table_unlock(t);
+}
+
+int kp_table_length(ktap_state *ks, ktap_table *t)
+{
+	unsigned long __maybe_unused flags;
+	int i, len = 0;
+
+	kp_table_lock(t);
+
+	for (i = 0; i < t->sizearray; i++) {
+		ktap_value *v = &t->array[i];
+
+		if (isnil(v))
+			continue;
+		len++;
+	}
+
+	for (i = 0; i < sizenode(t); i++) {
+		ktap_tnode *n = &t->node[i];
+
+		if (isnil(gkey(n)))
+			continue;
+
+		len++;
+	}
+	
+	kp_table_unlock(t);
+	return len;
+}
+
+void kp_table_free(ktap_state *ks, ktap_table *t)
+{
+	if (t->sizearray > 0)
+		kp_free(ks, t->array);
+	if (!isdummy(t->node))
+		kp_free(ks, t->node);
+
+	kp_free_gclist(ks, t->gclist);
+	kp_free(ks, t);
+}
+
+void kp_table_dump(ktap_state *ks, ktap_table *t)
+{
+	int i, count = 0;
+
+	kp_puts(ks, "{");
+	for (i = 0; i < t->sizearray; i++) {
+		ktap_value *v = &t->array[i];
+
+		if (isnil(v))
+			continue;
+
+		if (count)
+			kp_puts(ks, ", ");
+
+		kp_printf(ks, "(%d: ", i + 1);
+		kp_showobj(ks, v);
+		kp_puts(ks, ")");
+		count++;
+	}
+
+	for (i = 0; i < sizenode(t); i++) {
+		ktap_tnode *n = &t->node[i];
+
+		if (isnil(gkey(n)))
+			continue;
+
+		if (count)
+			kp_puts(ks, ", ");
+
+		kp_puts(ks, "(");
+		kp_showobj(ks, gkey(n));
+		kp_puts(ks, ": ");
+		kp_showobj(ks, gval(n));
+		kp_puts(ks, ")");
+		count++;
+	}
+	kp_puts(ks, "}");
+}
+
+/*
+ * table-clear only set nil of all elements, not free t->array and nodes.
+ * we assume user will reuse table soon after clear table, so reserve array
+ * and nodes will avoid memory allocation when insert key-value again.
+ */
+void kp_table_clear(ktap_state *ks, ktap_table *t)
+{
+	unsigned long __maybe_unused flags;
+	int i;
+
+	kp_table_lock(t);
+
+	for (i = 0; i < t->sizearray; i++) {
+		ktap_value *v = &t->array[i];
+
+		if (isnil(v))
+			continue;
+
+		setnilvalue(v);
+	}
+
+	for (i = 0; i < sizenode(t); i++) {
+		ktap_tnode *n = &t->node[i];
+
+		if (isnil(gkey(n)))
+			continue;
+
+		setnilvalue(gkey(n));
+		setnilvalue(gval(n));
+	}
+
+	kp_table_unlock(t);
+}
+
+#ifdef __KERNEL__
+static void string_convert(char *output, const char *input)
+{
+	if (strlen(input) > 32) {
+		strncpy(output, input, 32-4);
+		memset(output + 32-4, '.', 3);
+	} else
+		memcpy(output, input, strlen(input));
+}
+
+struct table_hist_record {
+	ktap_value key;
+	ktap_value val;
+};
+
+static int hist_record_cmp(const void *r1, const void *r2)
+{
+	const struct table_hist_record *i = r1;
+	const struct table_hist_record *j = r2;
+
+	if ((nvalue(&i->val) == nvalue(&j->val))) {
+		return 0;
+	} else if ((nvalue(&i->val) < nvalue(&j->val))) {
+		return 1;
+	} else
+		return -1;
+}
+
+static int kp_aggracc_read(ktap_aggraccval *acc);
+
+/* histogram: key should be number or string, value must be number */
+static void table_histdump(ktap_state *ks, ktap_table *t, int shownums)
+{
+	struct table_hist_record *thr;
+	unsigned long __maybe_unused flags;
+	char dist_str[40];
+	int i, ratio, total = 0, count = 0, top_num, is_kernel_address = 0;
+	int size, num;
+
+	size = sizeof(*thr) * (t->sizearray + sizenode(t));
+	thr = kp_malloc(ks, size);
+	if (!thr) {
+		kp_error(ks, "Cannot allocate %d of histogram memory", size);
+		return;
+	}
+
+	kp_table_lock(t);
+
+	for (i = 0; i < t->sizearray; i++) {
+		ktap_value *v = &t->array[i];
+
+		if (isnil(v))
+			continue;
+
+		if (ttisnumber(v))
+			num = nvalue(v);
+		else if (ttisaggracc(v))
+			num = kp_aggracc_read(aggraccvalue(v));
+		else {
+			kp_table_unlock(t);
+			goto error;
+		}
+
+		setnvalue(&thr[count].key, i + 1);
+		setnvalue(&thr[count].val, num);
+		count++;
+		total += num;
+	}
+
+	for (i = 0; i < sizenode(t); i++) {
+		ktap_tnode *n = &t->node[i];
+		ktap_value *v = gval(n);
+
+		if (isnil(gkey(n)))
+			continue;
+
+		if (ttisnumber(v))
+			num = nvalue(v);
+		else if (ttisaggracc(v))
+			num = kp_aggracc_read(aggraccvalue(v));
+		else {
+			kp_table_unlock(t);
+			goto error;
+		}
+
+		setobj(&thr[count].key, gkey(n));
+		setnvalue(&thr[count].val, num);
+		count++;
+		total += num;
+	}
+
+	kp_table_unlock(t);
+
+	sort(thr, count, sizeof(struct table_hist_record),
+	     hist_record_cmp, NULL);
+
+	dist_str[sizeof(dist_str) - 1] = '\0';
+
+	/* check the first key is a kernel text symbol or not */
+	if (ttisnumber(&thr[0].key)) {
+		char str[KSYM_SYMBOL_LEN];
+
+		SPRINT_SYMBOL(str, nvalue(&thr[0].key));
+		if (str[0] != '0' || str[1] != 'x')
+			is_kernel_address = 1;
+	}
+
+	top_num = min(shownums, count);
+	for (i = 0; i < top_num; i++) {
+		ktap_value *key = &thr[i].key;
+		ktap_value *val = &thr[i].val;
+
+		memset(dist_str, ' ', sizeof(dist_str) - 1);
+		ratio = (nvalue(val) * (sizeof(dist_str) - 1)) / total;
+		memset(dist_str, '@', ratio);
+
+		if (ttisstring(key)) {
+			char buf[32 + 1] = {0};
+
+			string_convert(buf, svalue(key));
+			kp_printf(ks, "%32s |%s%-7d\n", buf, dist_str,
+				      nvalue(val));
+		} else if (ttisnumber(key)) {
+			char str[KSYM_SYMBOL_LEN];
+			char buf[32 + 1] = {0};
+
+			if (is_kernel_address) {
+				/* suppose it's a symbol, fix it in future */
+				SPRINT_SYMBOL(str, nvalue(key));
+				string_convert(buf, str);
+				kp_printf(ks, "%32s |%s%-7d\n", buf, dist_str,
+						nvalue(val));
+			} else {
+				kp_printf(ks, "%32d |%s%-7d\n", nvalue(key),
+						dist_str, nvalue(val));
+			}
+		}
+	}
+
+	if (count > shownums)
+		kp_printf(ks, "%32s |\n", "...");
+
+	goto out;
+
+ error:
+	kp_puts(ks, "error: table histogram only handle "
+			" (key: string/number val: number)\n");
+ out:
+	kp_free(ks, thr);
+}
+
+#define HISTOGRAM_DEFAULT_TOP_NUM	20
+
+#define DISTRIBUTION_STR "------------- Distribution -------------"
+void kp_table_histogram(ktap_state *ks, ktap_table *t)
+{
+	kp_printf(ks, "%32s%s%s\n", "value ", DISTRIBUTION_STR, " count");
+	table_histdump(ks, t, HISTOGRAM_DEFAULT_TOP_NUM);
+}
+
+/*
+ * Aggregation Table
+ */
+
+static ktap_table *table_new2(ktap_state *ks, ktap_gcobject **list)
+{
+	ktap_table *t = &kp_newobject(ks, KTAP_TTABLE, sizeof(ktap_table),
+				      list)->h;
+	t->flags = (u8)(~0);
+	t->array = NULL;
+	t->sizearray = 0;
+	t->node = (ktap_tnode *)dummynode;
+	t->gclist = NULL;
+	setnodevector(ks, t, 0);
+
+	kp_table_lock_init(t);
+	return t;
+}
+
+static int kp_aggracc_read(ktap_aggraccval *acc)
+{
+	switch (acc->type) {
+	case AGGREGATION_TYPE_COUNT:
+	case AGGREGATION_TYPE_MAX:
+	case AGGREGATION_TYPE_MIN:
+	case AGGREGATION_TYPE_SUM:
+		return acc->val;
+	case AGGREGATION_TYPE_AVG:
+		return acc->val / acc->more;
+	default:
+		return 0;
+	}
+
+}
+
+void kp_aggraccval_dump(ktap_state *ks, ktap_aggraccval *acc)
+{
+	switch (acc->type) {
+	case AGGREGATION_TYPE_COUNT:
+	case AGGREGATION_TYPE_MAX:
+	case AGGREGATION_TYPE_MIN:
+	case AGGREGATION_TYPE_SUM:
+		kp_printf(ks, "%d", acc->val);
+		break;
+	case AGGREGATION_TYPE_AVG:
+		kp_printf(ks, "%d", acc->val / acc->more);
+		break;
+	default:
+		break;
+	}
+}
+
+static void synth_acc(ktap_aggraccval *acc1, ktap_aggraccval *acc2)
+{
+	switch (acc1->type) {
+	case AGGREGATION_TYPE_COUNT:
+		acc2->val += acc1->val;
+		break;
+	case AGGREGATION_TYPE_MAX:
+		acc2->val = max(acc1->val, acc2->val);
+		break;
+	case AGGREGATION_TYPE_MIN:
+		acc2->val = min(acc1->val, acc2->val);
+		break;
+	case AGGREGATION_TYPE_SUM:
+		acc2->val += acc1->val;
+		break;
+	case AGGREGATION_TYPE_AVG:
+		acc2->val += acc1->val;
+		acc2->more += acc1->more;
+		break;
+	default:
+		break;
+	}
+}
+
+static ktap_aggraccval *get_accval(ktap_state *ks, int type,
+				   ktap_gcobject **list)
+{
+	ktap_aggraccval *acc;
+
+	acc = &kp_newobject(ks, KTAP_TAGGRACCVAL, sizeof(ktap_aggraccval),
+				list)->acc;
+	acc->type = type;
+	acc->val = 0;
+	acc->more = 0;
+	return acc;
+}
+
+static void synth_accval(ktap_state *ks, ktap_value *o1, ktap_value *o2,
+			 ktap_gcobject **list)
+{
+	ktap_aggraccval *acc;
+
+	if (isnil(o2)) {
+		acc = get_accval(ks, aggraccvalue(o1)->type, list);
+		acc->val = aggraccvalue(o1)->val;
+		acc->more = aggraccvalue(o1)->more;
+		setaggraccvalue(o2, acc);
+		return;
+	}
+
+	synth_acc(aggraccvalue(o1), aggraccvalue(o2));
+}
+
+static void move_table(ktap_state *ks, ktap_table *t1, ktap_table *t2)
+{
+	ktap_value *newv;
+	ktap_value n;
+	int i;
+
+	for (i = 0; i < t1->sizearray; i++) {
+		ktap_value *v = &t1->array[i];
+
+		if (isnil(v))
+			continue;
+
+		setnvalue(&n, i);
+
+		newv = table_set(ks, t2, &n);
+		synth_accval(ks, v, newv, &t2->gclist);
+	}
+
+	for (i = 0; i < sizenode(t1); i++) {
+		ktap_tnode *node = &t1->node[i];
+
+		if (isnil(gkey(node)))
+			continue;
+
+		newv = table_set(ks, t2, gkey(node));
+		synth_accval(ks, gval(node), newv, &t2->gclist);
+	}
+}
+
+ktap_table *kp_aggrtable_synthesis(ktap_state *ks, ktap_aggrtable *ah)
+{
+	ktap_table *synth_tbl;
+	int cpu;
+
+	synth_tbl = table_new2(ks, &ah->gclist);
+
+	for_each_possible_cpu(cpu) {
+		ktap_table **t = per_cpu_ptr(ah->pcpu_tbl, cpu);
+		move_table(ks, *t, synth_tbl);
+	}
+
+	return synth_tbl;
+}
+
+void kp_aggrtable_dump(ktap_state *ks, ktap_aggrtable *ah)
+{
+	kp_table_dump(ks, kp_aggrtable_synthesis(ks, ah));
+}
+
+ktap_aggrtable *kp_aggrtable_new(ktap_state *ks)
+{
+	ktap_aggrtable *ah;
+	int cpu;
+
+	ah = &kp_newobject(ks, KTAP_TAGGRTABLE, sizeof(ktap_aggrtable),
+			NULL)->ah;
+	ah->pcpu_tbl = alloc_percpu(ktap_table *);
+	ah->gclist = NULL;
+
+	for_each_possible_cpu(cpu) {
+		ktap_table **t = per_cpu_ptr(ah->pcpu_tbl, cpu);
+		*t = table_new2(ks, &ah->gclist);
+	}	
+
+	return ah;
+}
+
+void kp_aggrtable_free(ktap_state *ks, ktap_aggrtable *ah)
+{
+	free_percpu(ah->pcpu_tbl);
+	kp_free_gclist(ks, ah->gclist);
+	kp_free(ks, ah);
+}
+
+static
+void handle_aggr_count(ktap_state *ks, ktap_aggrtable *ah, ktap_value *key)
+{
+	ktap_table *t = *__this_cpu_ptr(ah->pcpu_tbl);
+	ktap_value *v = table_set(ks, t, key);
+	ktap_aggraccval *acc;
+
+	if (isnil(v)) {
+		acc = get_accval(ks, AGGREGATION_TYPE_COUNT, &t->gclist);
+		acc->val = 1;
+		setaggraccvalue(v, acc);
+		return;
+	}
+
+	acc = aggraccvalue(v);
+	acc->val += 1;
+}
+
+static 
+void handle_aggr_max(ktap_state *ks, ktap_aggrtable *ah, ktap_value *key)
+{
+	ktap_table *t = *__this_cpu_ptr(ah->pcpu_tbl);
+	ktap_value *v = table_set(ks, t, key);
+	ktap_aggraccval *acc;
+
+	if (isnil(v)) {
+		acc = get_accval(ks, AGGREGATION_TYPE_MAX, &t->gclist);
+		acc->val = ks->aggr_accval;
+		setaggraccvalue(v, acc);
+		return;
+	}
+
+	acc = aggraccvalue(v);
+	acc->val = max(acc->val, ks->aggr_accval);
+}
+
+static 
+void handle_aggr_min(ktap_state *ks, ktap_aggrtable *ah, ktap_value *key)
+{
+	ktap_table *t = *__this_cpu_ptr(ah->pcpu_tbl);
+	ktap_value *v = table_set(ks, t, key);
+	ktap_aggraccval *acc;
+
+	if (isnil(v)) {
+		acc = get_accval(ks, AGGREGATION_TYPE_MIN, &t->gclist);
+		acc->val = ks->aggr_accval;
+		setaggraccvalue(v, acc);
+		return;
+	}
+
+	acc = aggraccvalue(v);
+	acc->val = min(acc->val, ks->aggr_accval);
+}
+
+static 
+void handle_aggr_sum(ktap_state *ks, ktap_aggrtable *ah, ktap_value *key)
+{
+	ktap_table *t = *__this_cpu_ptr(ah->pcpu_tbl);
+	ktap_value *v = table_set(ks, t, key);
+	ktap_aggraccval *acc;
+
+	if (isnil(v)) {
+		acc = get_accval(ks, AGGREGATION_TYPE_SUM, &t->gclist);
+		acc->val = ks->aggr_accval;
+		setaggraccvalue(v, acc);
+		return;
+	}
+
+	acc = aggraccvalue(v);
+	acc->val += ks->aggr_accval;
+}
+
+static 
+void handle_aggr_avg(ktap_state *ks, ktap_aggrtable *ah, ktap_value *key)
+{
+	ktap_table *t = *__this_cpu_ptr(ah->pcpu_tbl);
+	ktap_value *v = table_set(ks, t, key);
+	ktap_aggraccval *acc;
+
+	if (isnil(v)) {
+		acc = get_accval(ks, AGGREGATION_TYPE_AVG, &t->gclist);
+		acc->val = ks->aggr_accval;
+		acc->more = 1;
+		setaggraccvalue(v, acc);
+		return;
+	}
+
+	acc = aggraccvalue(v);
+	acc->val += ks->aggr_accval;
+	acc->more++;
+}
+
+typedef void (*aggr_func_t)(ktap_state *ks, ktap_aggrtable *ah, ktap_value *k);
+static aggr_func_t kp_aggregation_handler[] = {
+	handle_aggr_count,
+	handle_aggr_max,
+	handle_aggr_min,
+	handle_aggr_sum,
+	handle_aggr_avg
+};
+
+void kp_aggrtable_set(ktap_state *ks, ktap_aggrtable *ah,
+			ktap_value *key, ktap_value *val)
+{
+	if (unlikely(!ttisaggrval(val))) {
+		kp_error(ks, "set invalid value to aggregation table\n");
+		return;
+	}
+
+	kp_aggregation_handler[nvalue(val)](ks, ah, key);
+}
+
+
+void kp_aggrtable_get(ktap_state *ks, ktap_aggrtable *ah, ktap_value *key,
+		      ktap_value *val)
+{
+	ktap_aggraccval acc; /* in stack */
+	const ktap_value *v;
+	int cpu;
+
+	acc.val = -1;
+	acc.more = -1;
+
+	for_each_possible_cpu(cpu) {
+		ktap_table **t = per_cpu_ptr(ah->pcpu_tbl, cpu);
+
+		v = table_get(*t, key);
+		if (isnil(v))
+			continue;
+
+		if (acc.more == -1) {
+			acc = *aggraccvalue(v);
+			continue;
+		}
+
+		synth_acc(aggraccvalue(v), &acc);
+	}
+
+	if (acc.more == -1) {
+		setnilvalue(val);
+	} else {
+		setnvalue(val, kp_aggracc_read(&acc));
+	}
+}
+
+void kp_aggrtable_histogram(ktap_state *ks, ktap_aggrtable *ah)
+{
+	kp_table_histogram(ks, kp_aggrtable_synthesis(ks, ah));
+}
+#endif
diff --git a/drivers/staging/ktap/interpreter/transport.c b/drivers/staging/ktap/interpreter/transport.c
new file mode 100644
index 000000000000..4cd3662b792a
--- /dev/null
+++ b/drivers/staging/ktap/interpreter/transport.c
@@ -0,0 +1,636 @@
+/*
+ * transport.c - ktap transport functionality
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/ftrace_event.h>
+#include <linux/stacktrace.h>
+#include <linux/clocksource.h>
+#include <asm/uaccess.h>
+#include "../include/ktap.h"
+
+struct ktap_trace_iterator {
+	struct ring_buffer	*buffer;
+	int			print_timestamp;
+	void			*private;
+
+	struct trace_iterator	iter;
+};
+
+enum ktap_trace_type {
+	__TRACE_FIRST_TYPE = 0,
+
+	TRACE_FN = 1, /* must be same as ftrace definition in kernel */
+	TRACE_PRINT,
+	TRACE_BPUTS,
+	TRACE_STACK,
+	TRACE_USER_STACK,
+
+	__TRACE_LAST_TYPE,
+};
+
+#define KTAP_TRACE_ITER(iter)	\
+	container_of(iter, struct ktap_trace_iterator, iter)
+
+ssize_t trace_seq_to_user(struct trace_seq *s, char __user *ubuf, size_t cnt)
+{
+	int len;
+	int ret;
+
+	if (!cnt)
+		return 0;
+
+	if (s->len <= s->readpos)
+		return -EBUSY;
+
+	len = s->len - s->readpos;
+	if (cnt > len)
+		cnt = len;
+	ret = copy_to_user(ubuf, s->buffer + s->readpos, cnt);
+	if (ret == cnt)
+		return -EFAULT;
+
+	cnt -= ret;
+
+	s->readpos += cnt;
+	return cnt;
+}
+
+int trace_seq_puts(struct trace_seq *s, const char *str)
+{
+	int len = strlen(str);
+
+	if (s->full)
+		return 0;
+
+	if (len > ((PAGE_SIZE - 1) - s->len)) {
+		s->full = 1;
+		return 0;
+	}
+
+	memcpy(s->buffer + s->len, str, len);
+	s->len += len;
+
+	return len;
+}
+
+static int trace_empty(struct trace_iterator *iter)
+{
+	struct ktap_trace_iterator *ktap_iter = KTAP_TRACE_ITER(iter);
+	int cpu;
+
+	for_each_online_cpu(cpu) {
+		if (!ring_buffer_empty_cpu(ktap_iter->buffer, cpu))
+			return 0;
+	}
+
+	return 1;
+}
+
+static void trace_consume(struct trace_iterator *iter)
+{
+	struct ktap_trace_iterator *ktap_iter = KTAP_TRACE_ITER(iter);
+
+	ring_buffer_consume(ktap_iter->buffer, iter->cpu, &iter->ts,
+			    &iter->lost_events);
+}
+
+unsigned long long ns2usecs(cycle_t nsec)
+{
+	nsec += 500;
+	do_div(nsec, 1000);
+	return nsec;
+}
+
+static int trace_print_timestamp(struct trace_iterator *iter)
+{
+	struct trace_seq *s = &iter->seq;
+	unsigned long long t;
+	unsigned long secs, usec_rem;
+
+	t = ns2usecs(iter->ts);
+	usec_rem = do_div(t, USEC_PER_SEC);
+	secs = (unsigned long)t;
+
+	return trace_seq_printf(s, "%5lu.%06lu: ", secs, usec_rem);
+}
+
+/* todo: export kernel function ftrace_find_event in future, and make faster */
+static struct trace_event *(*ftrace_find_event)(int type);
+
+static enum print_line_t print_trace_fmt(struct trace_iterator *iter)
+{
+	struct ktap_trace_iterator *ktap_iter = KTAP_TRACE_ITER(iter);
+	struct trace_entry *entry = iter->ent;
+	struct trace_event *ev;
+
+	ev = ftrace_find_event(entry->type);
+
+	if (ktap_iter->print_timestamp && !trace_print_timestamp(iter))
+		return TRACE_TYPE_PARTIAL_LINE;
+
+	if (ev) {
+		int ret = ev->funcs->trace(iter, 0, ev);
+
+		/* overwrite '\n' at the ending */
+		iter->seq.buffer[iter->seq.len - 1] = '\0';
+		iter->seq.len--;
+		return ret;
+	}
+
+	return TRACE_TYPE_PARTIAL_LINE;
+}
+
+static enum print_line_t print_trace_stack(struct trace_iterator *iter)
+{
+	struct trace_entry *entry = iter->ent;
+	struct stack_trace trace;
+	char str[KSYM_SYMBOL_LEN];
+	int i;
+
+	trace.entries = (unsigned long *)(entry + 1);
+	trace.nr_entries = (iter->ent_size - sizeof(*entry)) /
+			   sizeof(unsigned long);
+
+	if (!trace_seq_puts(&iter->seq, "<stack trace>\n"))
+		return TRACE_TYPE_PARTIAL_LINE;
+
+	for (i = 0; i < trace.nr_entries; i++) {
+		unsigned long p = trace.entries[i];
+
+		if (p == ULONG_MAX)
+			break;
+
+		sprint_symbol(str, p);
+		if (!trace_seq_printf(&iter->seq, " => %s\n", str))
+			return TRACE_TYPE_PARTIAL_LINE;
+	}
+
+	return TRACE_TYPE_HANDLED;
+}
+
+struct ktap_ftrace_entry {
+	struct trace_entry entry;
+	unsigned long ip;
+	unsigned long parent_ip;
+};
+
+static enum print_line_t print_trace_fn(struct trace_iterator *iter)
+{
+	struct ktap_trace_iterator *ktap_iter = KTAP_TRACE_ITER(iter);
+	struct ktap_ftrace_entry *field = (struct ktap_ftrace_entry *)iter->ent;
+	char str[KSYM_SYMBOL_LEN];
+
+	if (ktap_iter->print_timestamp && !trace_print_timestamp(iter))
+		return TRACE_TYPE_PARTIAL_LINE;
+
+	sprint_symbol(str, field->ip);
+	if (!trace_seq_puts(&iter->seq, str))
+		return TRACE_TYPE_PARTIAL_LINE;
+
+	if (!trace_seq_puts(&iter->seq, " <- "))
+		return TRACE_TYPE_PARTIAL_LINE;
+
+	sprint_symbol(str, field->parent_ip);
+	if (!trace_seq_puts(&iter->seq, str))
+		return TRACE_TYPE_PARTIAL_LINE;
+
+	return TRACE_TYPE_HANDLED;
+}
+
+static enum print_line_t print_trace_bputs(struct trace_iterator *iter)
+{
+	if (!trace_seq_puts(&iter->seq,
+			    (const char *)(*(unsigned long *)(iter->ent + 1))))
+		return TRACE_TYPE_PARTIAL_LINE;
+
+	return TRACE_TYPE_HANDLED;
+}
+
+static enum print_line_t print_trace_line(struct trace_iterator *iter)
+{
+	struct trace_entry *entry = iter->ent;
+	char *str = (char *)(entry + 1);
+
+	if (entry->type == TRACE_PRINT) {
+		if (!trace_seq_printf(&iter->seq, "%s", str))
+			return TRACE_TYPE_PARTIAL_LINE;
+
+		return TRACE_TYPE_HANDLED;
+	}
+
+	if (entry->type == TRACE_BPUTS)
+		return print_trace_bputs(iter);
+
+	if (entry->type == TRACE_STACK)
+		return print_trace_stack(iter);
+
+	if (entry->type == TRACE_FN)
+		return print_trace_fn(iter);
+
+	return print_trace_fmt(iter);
+}
+
+static struct trace_entry *
+peek_next_entry(struct trace_iterator *iter, int cpu, u64 *ts,
+		unsigned long *lost_events)
+{
+	struct ktap_trace_iterator *ktap_iter = KTAP_TRACE_ITER(iter);
+	struct ring_buffer_event *event;
+
+	event = ring_buffer_peek(ktap_iter->buffer, cpu, ts, lost_events);
+	if (event) {
+		iter->ent_size = ring_buffer_event_length(event);
+		return ring_buffer_event_data(event);
+	}
+
+	return NULL;
+}
+
+static struct trace_entry *
+__find_next_entry(struct trace_iterator *iter, int *ent_cpu,
+		  unsigned long *missing_events, u64 *ent_ts)
+{
+	struct ktap_trace_iterator *ktap_iter = KTAP_TRACE_ITER(iter);
+	struct ring_buffer *buffer = ktap_iter->buffer;
+	struct trace_entry *ent, *next = NULL;
+	unsigned long lost_events = 0, next_lost = 0;
+	u64 next_ts = 0, ts;
+	int next_cpu = -1;
+	int next_size = 0;
+	int cpu;
+
+	for_each_online_cpu(cpu) {
+		if (ring_buffer_empty_cpu(buffer, cpu))
+			continue;
+
+		ent = peek_next_entry(iter, cpu, &ts, &lost_events);
+		/*
+		 * Pick the entry with the smallest timestamp:
+		 */
+		if (ent && (!next || ts < next_ts)) {
+			next = ent;
+			next_cpu = cpu;
+			next_ts = ts;
+			next_lost = lost_events;
+			next_size = iter->ent_size;
+		}
+	}
+
+	iter->ent_size = next_size;
+
+	if (ent_cpu)
+		*ent_cpu = next_cpu;
+
+	if (ent_ts)
+		*ent_ts = next_ts;
+
+	if (missing_events)
+		*missing_events = next_lost;
+
+	return next;
+}
+
+/* Find the next real entry, and increment the iterator to the next entry */
+static void *trace_find_next_entry_inc(struct trace_iterator *iter)
+{
+	iter->ent = __find_next_entry(iter, &iter->cpu,
+				      &iter->lost_events, &iter->ts);
+	if (iter->ent)
+		iter->idx++;
+
+	return iter->ent ? iter : NULL;
+}
+
+static void poll_wait_pipe(void)
+{
+	set_current_state(TASK_INTERRUPTIBLE);
+	/* sleep for 100 msecs, and try again. */
+	schedule_timeout(HZ / 10);
+}
+
+static int tracing_wait_pipe(struct file *filp)
+{
+	struct trace_iterator *iter = filp->private_data;
+	struct ktap_trace_iterator *ktap_iter = KTAP_TRACE_ITER(iter);
+	ktap_state *ks = ktap_iter->private;
+
+	while (trace_empty(iter)) {
+
+		if ((filp->f_flags & O_NONBLOCK)) {
+			return -EAGAIN;
+		}
+
+		mutex_unlock(&iter->mutex);
+
+		poll_wait_pipe();
+
+		mutex_lock(&iter->mutex);
+
+		if (G(ks)->wait_user && trace_empty(iter))
+			return -EINTR;
+	}
+
+	return 1;
+}
+
+static ssize_t
+tracing_read_pipe(struct file *filp, char __user *ubuf, size_t cnt,
+		  loff_t *ppos)
+{
+	struct trace_iterator *iter = filp->private_data;
+	ssize_t sret;
+
+	/* return any leftover data */
+	sret = trace_seq_to_user(&iter->seq, ubuf, cnt);
+	if (sret != -EBUSY)
+		return sret;
+	/*
+	 * Avoid more than one consumer on a single file descriptor
+	 * This is just a matter of traces coherency, the ring buffer itself
+	 * is protected.
+	 */
+	mutex_lock(&iter->mutex);
+
+waitagain:
+	sret = tracing_wait_pipe(filp);
+	if (sret <= 0)
+		goto out;
+
+	/* stop when tracing is finished */
+	if (trace_empty(iter)) {
+		sret = 0;
+		goto out;
+	}
+
+	if (cnt >= PAGE_SIZE)
+		cnt = PAGE_SIZE - 1;
+
+	/* reset all but tr, trace, and overruns */
+	memset(&iter->seq, 0,
+	       sizeof(struct trace_iterator) -
+	       offsetof(struct trace_iterator, seq));
+	iter->pos = -1;
+
+	while (trace_find_next_entry_inc(iter) != NULL) {
+		enum print_line_t ret;
+		int len = iter->seq.len;
+
+		ret = print_trace_line(iter);
+		if (ret == TRACE_TYPE_PARTIAL_LINE) {
+			/* don't print partial lines */
+			iter->seq.len = len;
+			break;
+		}
+		if (ret != TRACE_TYPE_NO_CONSUME)
+			trace_consume(iter);
+
+		if (iter->seq.len >= cnt)
+			break;
+
+		/*
+		 * Setting the full flag means we reached the trace_seq buffer
+		 * size and we should leave by partial output condition above.
+		 * One of the trace_seq_* functions is not used properly.
+		 */
+		WARN_ONCE(iter->seq.full, "full flag set for trace type %d",
+			  iter->ent->type);
+	}
+
+	/* Now copy what we have to the user */
+	sret = trace_seq_to_user(&iter->seq, ubuf, cnt);
+	if (iter->seq.readpos >= iter->seq.len)
+		trace_seq_init(&iter->seq);
+
+	/*
+	 * If there was nothing to send to user, in spite of consuming trace
+	 * entries, go back to wait for more entries.
+	 */
+	if (sret == -EBUSY)
+		goto waitagain;
+
+out:
+	mutex_unlock(&iter->mutex);
+
+	return sret;
+}
+
+static int tracing_open_pipe(struct inode *inode, struct file *filp)
+{
+	struct ktap_trace_iterator *ktap_iter;
+	ktap_state *ks = inode->i_private;
+
+	/* create a buffer to store the information to pass to userspace */
+	ktap_iter = kzalloc(sizeof(*ktap_iter), GFP_KERNEL);
+	if (!ktap_iter)
+		return -ENOMEM;
+
+	ktap_iter->private = ks;
+	ktap_iter->buffer = G(ks)->buffer;
+	ktap_iter->print_timestamp = G(ks)->parm->print_timestamp;
+	mutex_init(&ktap_iter->iter.mutex);
+	filp->private_data = &ktap_iter->iter;
+
+	nonseekable_open(inode, filp);
+
+	return 0;
+}
+
+static int tracing_release_pipe(struct inode *inode, struct file *file)
+{
+	struct trace_iterator *iter = file->private_data;
+	struct ktap_trace_iterator *ktap_iter = KTAP_TRACE_ITER(iter);
+
+	mutex_destroy(&iter->mutex);
+	kfree(ktap_iter);
+	return 0;
+}
+
+static const struct file_operations tracing_pipe_fops = {
+	.open		= tracing_open_pipe,
+	.read		= tracing_read_pipe,
+	.splice_read	= NULL,
+	.release	= tracing_release_pipe,
+	.llseek		= no_llseek,
+};
+
+/*
+ * print_backtrace maybe called from ktap mainthread, so be
+ * care on race with event closure thread.
+ *
+ * preempt disabled in ring_buffer_lock_reserve
+ *
+ * The implementation is similar with funtion __ftrace_trace_stack.
+ */
+void kp_transport_print_backtrace(ktap_state *ks)
+{
+	struct ring_buffer *buffer = G(ks)->buffer;
+	struct ring_buffer_event *event;
+	struct trace_entry *entry;
+	int size;
+
+	size = KTAP_STACK_MAX_ENTRIES * sizeof(unsigned long);
+	event = ring_buffer_lock_reserve(buffer, sizeof(*entry) + size);
+	if (!event) {
+		return;
+	} else {
+		struct stack_trace trace;
+
+		entry = ring_buffer_event_data(event);
+		tracing_generic_entry_update(entry, 0, 0);
+		entry->type = TRACE_STACK;
+
+		trace.nr_entries = 0;
+		trace.skip = 10;
+		trace.max_entries = KTAP_STACK_MAX_ENTRIES;
+		trace.entries = (unsigned long *)(entry + 1);
+		save_stack_trace(&trace);
+
+		ring_buffer_unlock_commit(buffer, event);
+	}
+
+	return;
+}
+
+void kp_transport_event_write(ktap_state *ks, struct ktap_event *e)
+{
+	struct ring_buffer *buffer = G(ks)->buffer;
+	struct ring_buffer_event *event;
+	struct trace_entry *entry;
+
+	event = ring_buffer_lock_reserve(buffer, e->entry_size +
+					 sizeof(struct ftrace_event_call *));
+	if (!event) {
+		return;
+	} else {
+		entry = ring_buffer_event_data(event);
+
+		memcpy(entry, e->entry, e->entry_size);
+
+		ring_buffer_unlock_commit(buffer, event);
+	}
+}
+
+void kp_transport_write(ktap_state *ks, const void *data, size_t length)
+{
+	struct ring_buffer *buffer = G(ks)->buffer;
+	struct ring_buffer_event *event;
+	struct trace_entry *entry;
+	int size;
+
+	size = sizeof(struct trace_entry) + length;
+
+	event = ring_buffer_lock_reserve(buffer, size);
+	if (!event) {
+		return;
+	} else {
+		entry = ring_buffer_event_data(event);
+
+		tracing_generic_entry_update(entry, 0, 0);
+		entry->type = TRACE_PRINT;
+		memcpy(entry + 1, data, length);
+
+		ring_buffer_unlock_commit(buffer, event);
+	}
+}
+
+/* general print function */
+void kp_printf(ktap_state *ks, const char *fmt, ...)
+{
+	char buff[1024];
+	va_list args;
+	int len;
+
+	va_start(args, fmt);
+	len = vscnprintf(buff, 1024, fmt, args);
+	va_end(args);
+
+	buff[len] = '\0';
+	kp_transport_write(ks, buff, len + 1);
+}
+
+void __kp_puts(ktap_state *ks, const char *str)
+{
+	kp_transport_write(ks, str, strlen(str) + 1);
+}
+
+void __kp_bputs(ktap_state *ks, const char *str)
+{
+	struct ring_buffer *buffer = G(ks)->buffer;
+	struct ring_buffer_event *event;
+	struct trace_entry *entry;
+	int size;
+
+	size = sizeof(struct trace_entry) + sizeof(unsigned long *);
+
+	event = ring_buffer_lock_reserve(buffer, size);
+	if (!event) {
+		return;
+	} else {
+		entry = ring_buffer_event_data(event);
+
+		tracing_generic_entry_update(entry, 0, 0);
+		entry->type = TRACE_BPUTS;
+		*(unsigned long *)(entry + 1) = (unsigned long)str;
+
+		ring_buffer_unlock_commit(buffer, event);
+	}
+}
+
+void kp_transport_exit(ktap_state *ks)
+{
+	ring_buffer_free(G(ks)->buffer);
+	debugfs_remove(G(ks)->trace_pipe_dentry);
+}
+
+#define TRACE_BUF_SIZE_DEFAULT	1441792UL /* 16384 * 88 (sizeof(entry)) */
+
+int kp_transport_init(ktap_state *ks, struct dentry *dir)
+{
+	struct ring_buffer *buffer;
+	struct dentry *dentry;
+	char filename[32] = {0};
+
+	ftrace_find_event = (void *)kallsyms_lookup_name("ftrace_find_event");
+	if (!ftrace_find_event) {
+		printk("ktap: cannot lookup ftrace_find_event in kallsyms\n");
+		return -EINVAL;
+	}
+
+	buffer = ring_buffer_alloc(TRACE_BUF_SIZE_DEFAULT, RB_FL_OVERWRITE);
+	if (!buffer)
+		return -ENOMEM;
+
+	sprintf(filename, "trace_pipe_%d", (int)task_tgid_vnr(current));
+
+	dentry = debugfs_create_file(filename, 0444, dir,
+				     ks, &tracing_pipe_fops);
+	if (!dentry) {
+		pr_err("ktapvm: cannot create trace_pipe file in debugfs\n");
+		ring_buffer_free(buffer);
+		return -1;
+	}
+
+	G(ks)->buffer = buffer;
+	G(ks)->trace_pipe_dentry = dentry;
+
+	return 0;
+}
+
diff --git a/drivers/staging/ktap/interpreter/tstring.c b/drivers/staging/ktap/interpreter/tstring.c
new file mode 100644
index 000000000000..ce4c88df2cc8
--- /dev/null
+++ b/drivers/staging/ktap/interpreter/tstring.c
@@ -0,0 +1,287 @@
+/*
+ * tstring.c - ktap tstring data struction manipulation function
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
+ *  - The part of code in this file is copied from lua initially.
+ *  - lua's MIT license is compatible with GPL.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifdef __KERNEL__
+#include "../include/ktap.h"
+#else
+#include "../include/ktap_types.h"
+#endif
+
+#define STRING_MAXSHORTLEN	40
+
+int kp_tstring_cmp(const ktap_string *ls, const ktap_string *rs)
+{
+	const char *l = getstr(ls);
+	size_t ll = ls->tsv.len;
+	const char *r = getstr(rs);
+	size_t lr = rs->tsv.len;
+
+	for (;;) {
+		int temp = strcmp(l, r);
+		if (temp != 0)
+			return temp;
+		else {
+			/* strings are equal up to a `\0' */
+
+			/* index of first `\0' in both strings */
+			size_t len = strlen(l);
+
+			/* r is finished? */
+			if (len == lr)
+				return (len == ll) ? 0 : 1;
+			else if (len == ll)  /* l is finished? */
+				return -1;
+
+			/*
+			 * both strings longer than `len';
+			 * go on comparing (after the `\0')
+			 */
+			len++;
+			l += len; ll -= len; r += len; lr -= len;
+		}
+	}
+}
+
+/*
+ * equality for long strings
+ */
+int kp_tstring_eqlngstr(ktap_string *a, ktap_string *b)
+{
+	size_t len = a->tsv.len;
+
+	return (a == b) || ((len == b->tsv.len) &&
+		(memcmp(getstr(a), getstr(b), len) == 0));
+}
+
+/*
+ * equality for strings
+ */
+int kp_tstring_eqstr(ktap_string *a, ktap_string *b)
+{
+	return (a->tsv.tt == b->tsv.tt) &&
+	       (a->tsv.tt == KTAP_TSHRSTR ? eqshrstr(a, b) :
+				kp_tstring_eqlngstr(a, b));
+}
+
+#define STRING_HASHLIMIT	5
+unsigned int kp_string_hash(const char *str, size_t l, unsigned int seed)
+{
+	unsigned int h = seed ^ l;
+	size_t l1;
+	size_t step = (l >> STRING_HASHLIMIT) + 1;
+
+	for (l1 = l; l1 >= step; l1 -= step)
+		h = h ^ ((h<<5) + (h>>2) + (u8)(str[l1 - 1]));
+
+	return h;
+}
+
+
+/*
+ * resizes the string table
+ */
+void kp_tstring_resize(ktap_state *ks, int newsize)
+{
+	int i;
+	ktap_stringtable *tb = &G(ks)->strt;
+
+	if (newsize > tb->size) {
+		kp_realloc(ks, tb->hash, tb->size, newsize, ktap_gcobject *);
+
+	for (i = tb->size; i < newsize; i++)
+		tb->hash[i] = NULL;
+	}
+
+	/* rehash */
+	for (i = 0; i < tb->size; i++) {
+		ktap_gcobject *p = tb->hash[i];
+		tb->hash[i] = NULL;
+
+		while (p) {
+			ktap_gcobject *next = gch(p)->next;
+			unsigned int h = lmod(gco2ts(p)->hash, newsize);
+
+			gch(p)->next = tb->hash[h];
+			tb->hash[h] = p;
+			p = next;
+		}
+	}
+
+	if (newsize < tb->size) {
+		/* shrinking slice must be empty */
+		kp_realloc(ks, tb->hash, tb->size, newsize, ktap_gcobject *);
+	}
+
+	tb->size = newsize;
+}
+
+/*
+ * creates a new string object
+ */
+static ktap_string *createstrobj(ktap_state *ks, const char *str, size_t l,
+				 int tag, unsigned int h, ktap_gcobject **list)
+{
+	ktap_string *ts;
+	size_t totalsize;  /* total size of TString object */
+
+	totalsize = sizeof(ktap_string) + ((l + 1) * sizeof(char));
+	ts = &kp_newobject(ks, tag, totalsize, list)->ts;
+	ts->tsv.len = l;
+	ts->tsv.hash = h;
+	ts->tsv.extra = 0;
+	memcpy(ts + 1, str, l * sizeof(char));
+	((char *)(ts + 1))[l] = '\0';  /* ending 0 */
+	return ts;
+}
+
+/*
+ * creates a new short string, inserting it into string table
+ */
+static ktap_string *newshrstr(ktap_state *ks, const char *str, size_t l,
+			  unsigned int h)
+{
+	ktap_gcobject **list;
+	ktap_stringtable *tb = &G(ks)->strt;
+	ktap_string *s;
+
+	if (tb->nuse >= (int)tb->size)
+		kp_tstring_resize(ks, tb->size * 2);  /* too crowded */
+
+	list = &tb->hash[lmod(h, tb->size)];
+	s = createstrobj(ks, str, l, KTAP_TSHRSTR, h, list);
+	tb->nuse++;
+	return s;
+}
+
+#ifdef __KERNEL__
+static arch_spinlock_t tstring_lock =
+		(arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED;
+#endif
+
+/*
+ * checks whether short string exists and reuses it or creates a new one
+ */
+static ktap_string *internshrstr(ktap_state *ks, const char *str, size_t l)
+{
+	ktap_gcobject *o;
+	ktap_global_state *g = G(ks);
+	ktap_string *ts;
+	unsigned int h = kp_string_hash(str, l, g->seed);
+	unsigned long __maybe_unused flags;
+
+#ifdef __KERNEL__
+	local_irq_save(flags);
+	arch_spin_lock(&tstring_lock);
+#endif
+
+	for (o = g->strt.hash[lmod(h, g->strt.size)]; o != NULL;
+	     o = gch(o)->next) {
+		ts = rawgco2ts(o);
+
+		if (h == ts->tsv.hash && ts->tsv.len == l &&
+		   (memcmp(str, getstr(ts), l * sizeof(char)) == 0))
+			goto out;
+	}
+
+	ts = newshrstr(ks, str, l, h);  /* not found; create a new string */
+
+ out:
+#ifdef __KERNEL__
+	arch_spin_unlock(&tstring_lock);
+	local_irq_restore(flags);
+#endif
+	return ts;
+}
+
+
+/*
+ * new string (with explicit length)
+ */
+ktap_string *kp_tstring_newlstr(ktap_state *ks, const char *str, size_t l)
+{
+	/* short string? */
+	if (l <= STRING_MAXSHORTLEN)
+		return internshrstr(ks, str, l);
+	else
+		return createstrobj(ks, str, l, KTAP_TLNGSTR, G(ks)->seed,
+				    NULL);
+}
+
+ktap_string *kp_tstring_newlstr_local(ktap_state *ks, const char *str, size_t l)
+{
+	return createstrobj(ks, str, l, KTAP_TLNGSTR, G(ks)->seed,
+			    &ks->gclist);
+}
+
+/*
+ * new zero-terminated string
+ */
+ktap_string *kp_tstring_new(ktap_state *ks, const char *str)
+{
+	return kp_tstring_newlstr(ks, str, strlen(str));
+}
+
+ktap_string *kp_tstring_new_local(ktap_state *ks, const char *str)
+{
+	return createstrobj(ks, str, strlen(str), KTAP_TLNGSTR, G(ks)->seed,
+			    &ks->gclist);
+}
+
+void kp_tstring_freeall(ktap_state *ks)
+{
+	ktap_global_state *g = G(ks);
+	int h;
+
+	for (h = 0; h < g->strt.size; h++) {
+		ktap_gcobject *o, *next;
+		o = g->strt.hash[h];
+		while (o) {
+			next = gch(o)->next;
+			kp_free(ks, o);
+			o = next;
+		}
+		g->strt.hash[h] = NULL;
+	}
+
+	kp_free(ks, g->strt.hash);
+}
+
+/* todo: dump long string, strt table only contain short string */
+void kp_tstring_dump(ktap_state *ks)
+{
+	ktap_gcobject *o;
+	ktap_global_state *g = G(ks);
+	int h;
+
+	kp_printf(ks, "tstring dump: strt size: %d, nuse: %d\n", g->strt.size,
+								 g->strt.nuse);
+	for (h = 0; h < g->strt.size; h++) {
+		for (o = g->strt.hash[h]; o != NULL; o = gch(o)->next) {
+			ktap_string *ts = rawgco2ts(o);
+			kp_printf(ks, "%s [%d]\n", getstr(ts), (int)ts->tsv.len);
+		}
+	}
+}
+
diff --git a/drivers/staging/ktap/interpreter/vm.c b/drivers/staging/ktap/interpreter/vm.c
new file mode 100644
index 000000000000..bc7b9518a88f
--- /dev/null
+++ b/drivers/staging/ktap/interpreter/vm.c
@@ -0,0 +1,1369 @@
+/*
+ * vm.c - ktap script virtual machine in Linux kernel
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
+ *  - The part of code in this file is copied from lua initially.
+ *  - lua's MIT license is compatible with GPL.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/slab.h>
+#include <linux/ftrace_event.h>
+#include <linux/signal.h>
+#include <linux/sched.h>
+#include "../include/ktap.h"
+
+#define KTAP_MINSTACK 20
+
+/* todo: enlarge maxstack for big system like 64-bit */
+#define KTAP_MAXSTACK           15000
+
+#define KTAP_STACK_SIZE (BASIC_STACK_SIZE * sizeof(ktap_value))
+
+#define CIST_KTAP	(1 << 0) /* call is running a ktap function */
+#define CIST_REENTRY	(1 << 2)
+
+#define isktapfunc(ci)	((ci)->callstatus & CIST_KTAP)
+
+static void ktap_concat(ktap_state *ks, int start, int end)
+{
+	int i, len = 0;
+	StkId top = ks->ci->u.l.base;
+	ktap_string *ts;
+	char *ptr, *buffer;
+
+	for (i = start; i <= end; i++) {
+		if (!ttisstring(top + i)) {
+			kp_error(ks, "cannot concat non-string\n");
+			setnilvalue(top + start);
+			return;
+		}
+
+		len += rawtsvalue(top + i)->tsv.len;
+	}
+
+	if (len >= KTAP_PERCPU_BUFFER_SIZE) {
+		kp_error(ks, "Error: too long string concatenation\n");
+		return;
+	}
+
+	preempt_disable_notrace();
+
+	buffer = kp_percpu_data(KTAP_PERCPU_DATA_BUFFER);
+	ptr = buffer;
+
+	for (i = start; i <= end; i++) {
+		int len = rawtsvalue(top + i)->tsv.len;
+		strncpy(ptr, svalue(top + i), len);
+		ptr += len;
+	}
+	ts = kp_tstring_newlstr(ks, buffer, len);
+	setsvalue(top + start, ts);
+
+	preempt_enable_notrace();
+}
+
+/* todo: compare l == r if both is tstring type? */
+static int lessthan(ktap_state *ks, const ktap_value *l, const ktap_value *r)
+{
+	if (ttisnumber(l) && ttisnumber(r))
+		return NUMLT(nvalue(l), nvalue(r));
+	else if (ttisstring(l) && ttisstring(r))
+		return kp_tstring_cmp(rawtsvalue(l), rawtsvalue(r)) < 0;
+
+	return 0;
+}
+
+static int lessequal(ktap_state *ks, const ktap_value *l, const ktap_value *r)
+{
+	if (ttisnumber(l) && ttisnumber(r))
+		return NUMLE(nvalue(l), nvalue(r));
+	else if (ttisstring(l) && ttisstring(r))
+		return kp_tstring_cmp(rawtsvalue(l), rawtsvalue(r)) <= 0;
+
+	return 0;
+}
+
+static int fb2int (int x)
+{
+	int e = (x >> 3) & 0x1f;
+	if (e == 0)
+		return x;
+	else
+		return ((x & 7) + 8) << (e - 1);
+}
+
+static const ktap_value *ktap_tonumber(const ktap_value *obj, ktap_value *n)
+{
+	if (ttisnumber(obj))
+		return obj;
+
+	return NULL;
+}
+
+static ktap_upval *findupval(ktap_state *ks, StkId level)
+{
+	ktap_global_state *g = G(ks);
+	ktap_gcobject **pp = &ks->openupval;
+	ktap_upval *p;
+	ktap_upval *uv;
+
+	while (*pp != NULL && (p = gco2uv(*pp))->v >= level) {
+		if (p->v == level) {  /* found a corresponding upvalue? */
+			return p;
+		}
+		pp = &p->next;
+	}
+
+	/* not found: create a new one */
+	uv = &kp_newobject(ks, KTAP_TUPVAL, sizeof(ktap_upval), pp)->uv;
+	uv->v = level;  /* current value lives in the stack */
+	uv->u.l.prev = &g->uvhead;  /* double link it in `uvhead' list */
+	uv->u.l.next = g->uvhead.u.l.next;
+	uv->u.l.next->u.l.prev = uv;
+	g->uvhead.u.l.next = uv;
+	return uv;
+}
+
+/* todo: implement this*/
+static void function_close (ktap_state *ks, StkId level)
+{
+}
+
+/* create a new closure */
+static void pushclosure(ktap_state *ks, ktap_proto *p, ktap_upval **encup,
+			StkId base, StkId ra)
+{
+	int nup = p->sizeupvalues;
+	ktap_upvaldesc *uv = p->upvalues;
+	int i;
+	ktap_closure *ncl = kp_newlclosure(ks, nup);
+
+	ncl->l.p = p;
+	setcllvalue(ra, ncl);  /* anchor new closure in stack */
+
+	/* fill in its upvalues */
+	for (i = 0; i < nup; i++) {
+		if (uv[i].instack) {
+			/* upvalue refers to local variable? */
+			ncl->l.upvals[i] = findupval(ks, base + uv[i].idx);
+		} else {
+			/* get upvalue from enclosing function */
+			ncl->l.upvals[i] = encup[uv[i].idx];
+		}
+	}
+	//p->cache = ncl;  /* save it on cache for reuse */
+}
+
+static void gettable(ktap_state *ks, const ktap_value *t, ktap_value *key,
+		     StkId val)
+{
+	if (ttistable(t)) {
+		setobj(val, kp_table_get(hvalue(t), key));
+	} else if (ttisaggrtable(t)) {
+		kp_aggrtable_get(ks, ahvalue(t), key, val);
+	} else {
+		kp_error(ks, "get key from non-table\n");
+	}
+}
+
+static void settable(ktap_state *ks, const ktap_value *t, ktap_value *key,
+		     StkId val)
+{
+	if (ttistable(t)) {
+		kp_table_setvalue(ks, hvalue(t), key, val);
+	} else if (ttisaggrtable(t)) {
+		kp_aggrtable_set(ks, ahvalue(t), key, val);
+	} else {
+		kp_error(ks, "set key to non-table\n");
+	}
+}
+
+static void settable_incr(ktap_state *ks, const ktap_value *t, ktap_value *key,
+			  StkId val)
+{
+	if (unlikely(!ttistable(t))) {
+		kp_error(ks, "use += operator for non-table\n");
+		return;
+	}
+
+	if (unlikely(!ttisnumber(val))) {
+		kp_error(ks, "use non-number to += operator\n");
+		return;
+	}
+
+	kp_table_atomic_inc(ks, hvalue(t), key, nvalue(val));
+}
+
+
+static void growstack(ktap_state *ks, int n)
+{
+	ktap_value *oldstack;
+	int lim;
+	ktap_callinfo *ci;
+	ktap_gcobject *up;
+	int size = ks->stacksize;
+	int needed = (int)(ks->top - ks->stack) + n;
+	int newsize = 2 * size;
+
+	if (newsize > KTAP_MAXSTACK)
+		newsize = KTAP_MAXSTACK;
+
+	if (newsize < needed)
+		newsize = needed;
+
+	if (newsize > KTAP_MAXSTACK) {  /* stack overflow? */
+		kp_error(ks, "stack overflow\n");
+		return;
+	}
+
+	/* realloc stack */
+	oldstack = ks->stack;
+	lim = ks->stacksize;
+	kp_realloc(ks, ks->stack, ks->stacksize, newsize, ktap_value);
+
+	for (; lim < newsize; lim++)
+		setnilvalue(ks->stack + lim);
+	ks->stacksize = newsize;
+	ks->stack_last = ks->stack + newsize;
+
+	/* correct stack */
+	ks->top = (ks->top - oldstack) + ks->stack;
+	for (up = ks->openupval; up != NULL; up = up->gch.next)
+		gco2uv(up)->v = (gco2uv(up)->v - oldstack) + ks->stack;
+
+	for (ci = ks->ci; ci != NULL; ci = ci->prev) {
+		ci->top = (ci->top - oldstack) + ks->stack;
+		ci->func = (ci->func - oldstack) + ks->stack;
+		if (isktapfunc(ci))
+			ci->u.l.base = (ci->u.l.base - oldstack) + ks->stack;
+	}
+	
+}
+
+static inline void checkstack(ktap_state *ks, int n)
+{
+	if (ks->stack_last - ks->top <= n)
+		growstack(ks, n);
+}
+
+static StkId adjust_varargs(ktap_state *ks, ktap_proto *p, int actual)
+{
+	int i;
+	int nfixargs = p->numparams;
+	StkId base, fixed;
+
+	/* move fixed parameters to final position */
+	fixed = ks->top - actual;  /* first fixed argument */
+	base = ks->top;  /* final position of first argument */
+
+	for (i=0; i < nfixargs; i++) {
+		setobj(ks->top++, fixed + i);
+		setnilvalue(fixed + i);
+	}
+
+	return base;
+}
+
+static int poscall(ktap_state *ks, StkId first_result)
+{
+	ktap_callinfo *ci;
+	StkId res;
+	int wanted, i;
+
+	ci = ks->ci;
+
+	res = ci->func;
+	wanted = ci->nresults;
+
+	ks->ci = ci = ci->prev;
+
+	for (i = wanted; i != 0 && first_result < ks->top; i--)
+		setobj(res++, first_result++);
+
+	while(i-- > 0)
+		setnilvalue(res++);
+
+	ks->top = res;
+
+	return (wanted - (-1));
+}
+
+static ktap_callinfo *extend_ci(ktap_state *ks)
+{
+	ktap_callinfo *ci;
+
+	ci = kp_malloc(ks, sizeof(ktap_callinfo));
+	ks->ci->next = ci;
+	ci->prev = ks->ci;
+	ci->next = NULL;
+
+	return ci;
+}
+
+static void free_ci(ktap_state *ks)
+{
+	ktap_callinfo *ci = ks->ci;
+	ktap_callinfo *next;
+
+	if (!ci)
+		return;
+
+	next = ci->next;
+	ci->next = NULL;
+	while ((ci = next) != NULL) {
+		next = ci->next;
+		kp_free(ks, ci);
+	}
+}
+
+#define next_ci(ks) (ks->ci = ks->ci->next ? ks->ci->next : extend_ci(ks))
+#define savestack(ks, p)	((char *)(p) - (char *)ks->stack)
+#define restorestack(ks, n)	((ktap_value *)((char *)ks->stack + (n)))
+
+static int precall(ktap_state *ks, StkId func, int nresults)
+{
+	ktap_cfunction f;
+	ktap_callinfo *ci;
+	ktap_proto *p;
+	StkId base;
+	ptrdiff_t funcr = savestack(ks, func);
+	int n;
+
+	switch (ttype(func)) {
+	case KTAP_TLCF: /* light C function */
+		f = fvalue(func);
+		goto CFUNC;
+	case KTAP_TCCL: /* C closure */
+		f = clcvalue(func)->f;
+ CFUNC:
+		checkstack(ks, KTAP_MINSTACK);
+		ci = next_ci(ks);
+		ci->nresults = nresults;
+		ci->func = restorestack(ks, funcr);
+		ci->top = ks->top + KTAP_MINSTACK;
+		ci->callstatus = 0;
+		n = (*f)(ks);
+		poscall(ks, ks->top - n);
+		return 1;
+	case KTAP_TLCL:	
+		p = CLVALUE(func)->p;
+		checkstack(ks, p->maxstacksize);
+		func = restorestack(ks, funcr);
+		n = (int)(ks->top - func) - 1; /* number of real arguments */
+
+		/* complete missing arguments */
+		for (; n < p->numparams; n++)
+			setnilvalue(ks->top++);
+
+		base = (!p->is_vararg) ? func + 1 : adjust_varargs(ks, p, n);
+		ci = next_ci(ks);
+		ci->nresults = nresults;
+		ci->func = func;
+		ci->u.l.base = base;
+		ci->top = base + p->maxstacksize;
+		ci->u.l.savedpc = p->code; /* starting point */
+		ci->callstatus = CIST_KTAP;
+		ks->top = ci->top;
+		return 0;
+	default:
+		kp_error(ks, "attempt to call nil function\n");
+	}
+
+	return 0;
+}
+
+#define RA(i)   (base+GETARG_A(i))
+#define RB(i)   (base+GETARG_B(i))
+#define ISK(x)  ((x) & BITRK)
+#define RC(i)   base+GETARG_C(i)
+#define RKB(i) \
+        ISK(GETARG_B(i)) ? k+INDEXK(GETARG_B(i)) : base+GETARG_B(i)
+#define RKC(i)  \
+        ISK(GETARG_C(i)) ? k+INDEXK(GETARG_C(i)) : base+GETARG_C(i)
+
+#define dojump(ci,i,e) { \
+	ci->u.l.savedpc += GETARG_sBx(i) + e; }
+#define donextjump(ci)  { instr = *ci->u.l.savedpc; dojump(ci, instr, 1); }
+
+#define arith_op(ks, op) { \
+	ktap_value *rb = RKB(instr); \
+	ktap_value *rc = RKC(instr); \
+	if (ttisnumber(rb) && ttisnumber(rc)) { \
+		ktap_number nb = nvalue(rb), nc = nvalue(rc); \
+		setnvalue(ra, op(nb, nc)); \
+	} else {	\
+		kp_puts(ks, "Error: Cannot make arith operation\n");	\
+		return;	\
+	} }
+
+static ktap_value *cfunction_cache_get(ktap_state *ks, int index);
+
+static void ktap_execute(ktap_state *ks)
+{
+	int exec_count = 0;
+	ktap_callinfo *ci;
+	ktap_lclosure *cl;
+	ktap_value *k;
+	unsigned int instr, opcode;
+	StkId base; /* stack pointer */
+	StkId ra; /* register pointer */
+	int res, nresults; /* temp varible */
+
+	ci = ks->ci;
+
+ newframe:
+	cl = CLVALUE(ci->func);
+	k = cl->p->k;
+	base = ci->u.l.base;
+
+ mainloop:
+	/* main loop of interpreter */
+
+	/* dead loop detaction */
+	if (exec_count++ == kp_max_exec_count) {
+		if (G(ks)->mainthread != ks) {
+			kp_error(ks, "non-mainthread executed instructions "
+				     "exceed max limit(%d)\n",
+					kp_max_exec_count);
+			return;
+		}
+
+		cond_resched();
+		if (signal_pending(current)) {
+			flush_signals(current);
+			return;
+		}
+		exec_count = 0;
+	}
+
+	instr = *(ci->u.l.savedpc++);
+	opcode = GET_OPCODE(instr);
+
+	/* ra is target register */
+	ra = RA(instr);
+
+	switch (opcode) {
+	case OP_MOVE:
+		setobj(ra, base + GETARG_B(instr));
+		break;
+	case OP_LOADK:
+		setobj(ra, k + GETARG_Bx(instr));
+		break;
+	case OP_LOADKX:
+		setobj(ra, k + GETARG_Ax(*ci->u.l.savedpc++));
+		break;
+	case OP_LOADBOOL:
+		setbvalue(ra, GETARG_B(instr));
+		if (GETARG_C(instr))
+			ci->u.l.savedpc++;
+		break;
+	case OP_LOADNIL: {
+		int b = GETARG_B(instr);
+		do {
+			setnilvalue(ra++);
+		} while (b--);
+		break;
+		}
+	case OP_GETUPVAL: {
+		int b = GETARG_B(instr);
+		setobj(ra, cl->upvals[b]->v);
+		break;
+		}
+	case OP_GETTABUP: {
+		int b = GETARG_B(instr);
+		gettable(ks, cl->upvals[b]->v, RKC(instr), ra);
+		base = ci->u.l.base;
+		break;
+		}
+	case OP_GETTABLE:
+		gettable(ks, RB(instr), RKC(instr), ra);
+		base = ci->u.l.base;
+		break;
+	case OP_SETTABUP: {
+		int a = GETARG_A(instr);
+		settable(ks, cl->upvals[a]->v, RKB(instr), RKC(instr));
+		base = ci->u.l.base;
+		break;
+		}
+	case OP_SETTABUP_INCR: {
+		int a = GETARG_A(instr);
+		settable_incr(ks, cl->upvals[a]->v, RKB(instr), RKC(instr));
+		base = ci->u.l.base;
+		break;
+		}
+	case OP_SETUPVAL: {
+		ktap_upval *uv = cl->upvals[GETARG_B(instr)];
+		setobj(uv->v, ra);
+		break;
+		}
+	case OP_SETTABLE:
+		settable(ks, ra, RKB(instr), RKC(instr));
+		base = ci->u.l.base;
+		break;
+	case OP_SETTABLE_INCR:
+		settable_incr(ks, ra, RKB(instr), RKC(instr));
+		base = ci->u.l.base;
+		break;
+	case OP_NEWTABLE: {
+		int b = GETARG_B(instr);
+		int c = GETARG_C(instr);
+		ktap_table *t = kp_table_new(ks);
+		sethvalue(ra, t);
+		if (b != 0 || c != 0)
+			kp_table_resize(ks, t, fb2int(b), fb2int(c));
+		break;
+		}
+	case OP_SELF: {
+		StkId rb = RB(instr);
+		setobj(ra+1, rb);
+		gettable(ks, rb, RKC(instr), ra);
+		base = ci->u.l.base;
+		break;
+		}
+	case OP_ADD:
+		arith_op(ks, NUMADD);
+		break;
+	case OP_SUB:
+		arith_op(ks, NUMSUB);
+		break;
+	case OP_MUL:
+		arith_op(ks, NUMMUL);
+		break;
+	case OP_DIV:
+		/* divide 0 checking */
+		if (!nvalue(RKC(instr))) {
+			kp_error(ks, "divide 0 arith operation\n");
+			return;
+		}
+		arith_op(ks, NUMDIV);
+		break;
+	case OP_MOD:
+		/* divide 0 checking */
+		if (!nvalue(RKC(instr))) {
+			kp_error(ks, "mod 0 arith operation\n");
+			return;
+		}
+		arith_op(ks, NUMMOD);
+		break;
+	case OP_POW:
+		kp_error(ks, "ktap don't support pow arith in kernel\n");
+		return;
+	case OP_UNM: {
+		ktap_value *rb = RB(instr);
+		if (ttisnumber(rb)) {
+			ktap_number nb = nvalue(rb);
+			setnvalue(ra, NUMUNM(nb));
+		}
+		break;
+		}
+	case OP_NOT:
+		res = isfalse(RB(instr));
+		setbvalue(ra, res);
+		break;
+	case OP_LEN: {
+		int len = kp_objlen(ks, RB(instr));
+		if (len < 0)
+			return;
+		setnvalue(ra, len);
+		break;
+		}
+	case OP_CONCAT: {
+		int b = GETARG_B(instr);
+		int c = GETARG_C(instr);
+		ktap_concat(ks, b, c);
+		break;
+		}
+	case OP_JMP:
+		dojump(ci, instr, 0);
+		break;
+	case OP_EQ: {
+		ktap_value *rb = RKB(instr);
+		ktap_value *rc = RKC(instr);
+		if ((int)equalobj(ks, rb, rc) != GETARG_A(instr))
+			ci->u.l.savedpc++;
+		else
+			donextjump(ci);
+
+		base = ci->u.l.base;
+		break;
+		}
+	case OP_LT:
+		if (lessthan(ks, RKB(instr), RKC(instr)) != GETARG_A(instr))
+			ci->u.l.savedpc++;
+		else
+			donextjump(ci);
+		base = ci->u.l.base;
+		break;
+	case OP_LE:
+		if (lessequal(ks, RKB(instr), RKC(instr)) != GETARG_A(instr))
+			ci->u.l.savedpc++;
+		else
+			donextjump(ci);
+		base = ci->u.l.base;
+		break;
+	case OP_TEST:
+		if (GETARG_C(instr) ? isfalse(ra) : !isfalse(ra))
+			ci->u.l.savedpc++;
+		else
+			donextjump(ci);
+		break;
+	case OP_TESTSET: {
+		ktap_value *rb = RB(instr);
+		if (GETARG_C(instr) ? isfalse(rb) : !isfalse(rb))
+			ci->u.l.savedpc++;
+		else {
+			setobj(ra, rb);
+			donextjump(ci);
+		}
+		break;
+		}
+	case OP_CALL: {
+		int b = GETARG_B(instr);
+		int ret;
+
+		nresults = GETARG_C(instr) - 1;
+
+		if (b != 0)
+			ks->top = ra + b;
+
+		ret = precall(ks, ra, nresults);
+		if (ret) { /* C function */
+			if (nresults >= 0)
+				ks->top = ci->top;
+			base = ci->u.l.base;
+			break;
+		} else { /* ktap function */
+			ci = ks->ci;
+			/* this flag is used for return time, see OP_RETURN */
+			ci->callstatus |= CIST_REENTRY;
+			goto newframe;
+		}
+		break;
+		}
+	case OP_TAILCALL: {
+		int b = GETARG_B(instr);
+
+		if (b != 0)
+			ks->top = ra+b;
+		if (precall(ks, ra, -1))  /* C function? */
+			base = ci->u.l.base;
+		else {
+			int aux;
+
+			/* 
+			 * tail call: put called frame (n) in place of
+			 * caller one (o)
+			 */
+			ktap_callinfo *nci = ks->ci;  /* called frame */
+			ktap_callinfo *oci = nci->prev;  /* caller frame */
+			StkId nfunc = nci->func;  /* called function */
+			StkId ofunc = oci->func;  /* caller function */
+			/* last stack slot filled by 'precall' */
+			StkId lim = nci->u.l.base +
+				    CLVALUE(nfunc)->p->numparams;
+
+			/* close all upvalues from previous call */
+			if (cl->p->sizep > 0)
+				function_close(ks, oci->u.l.base);
+
+			/* move new frame into old one */
+			for (aux = 0; nfunc + aux < lim; aux++)
+				setobj(ofunc + aux, nfunc + aux);
+			/* correct base */
+			oci->u.l.base = ofunc + (nci->u.l.base - nfunc);
+			/* correct top */
+			oci->top = ks->top = ofunc + (ks->top - nfunc);
+			oci->u.l.savedpc = nci->u.l.savedpc;
+			/* remove new frame */
+			ci = ks->ci = oci;
+			/* restart ktap_execute over new ktap function */
+			goto newframe;
+		}
+		break;
+		}
+	case OP_RETURN: {
+		int b = GETARG_B(instr);
+		if (b != 0)
+			ks->top = ra+b-1;
+		if (cl->p->sizep > 0)
+			function_close(ks, base);
+		b = poscall(ks, ra);
+
+		/* if it's called from external invocation, just return */
+		if (!(ci->callstatus & CIST_REENTRY))
+			return;
+
+		ci = ks->ci;
+		if (b)
+			ks->top = ci->top;
+		goto newframe;
+		}
+	case OP_FORLOOP: {
+		ktap_number step = nvalue(ra+2);
+		/* increment index */
+		ktap_number idx = NUMADD(nvalue(ra), step);
+		ktap_number limit = nvalue(ra+1);
+		if (NUMLT(0, step) ? NUMLE(idx, limit) : NUMLE(limit, idx)) {
+			ci->u.l.savedpc += GETARG_sBx(instr);  /* jump back */
+			setnvalue(ra, idx);  /* update internal index... */
+			setnvalue(ra+3, idx);  /* ...and external index */
+		}
+		break;
+		}
+	case OP_FORPREP: {
+		const ktap_value *init = ra;
+		const ktap_value *plimit = ra + 1;
+		const ktap_value *pstep = ra + 2;
+
+		if (!ktap_tonumber(init, ra)) {
+			kp_error(ks, KTAP_QL("for")
+				 " initial value must be a number\n");
+			return;
+		} else if (!ktap_tonumber(plimit, ra + 1)) {
+			kp_error(ks, KTAP_QL("for")
+				 " limit must be a number\n");
+			return;
+		} else if (!ktap_tonumber(pstep, ra + 2)) {
+			kp_error(ks, KTAP_QL("for") " step must be a number\n");
+			return;
+		}
+
+		setnvalue(ra, NUMSUB(nvalue(ra), nvalue(pstep)));
+		ci->u.l.savedpc += GETARG_sBx(instr);
+		break;
+		}
+	case OP_TFORCALL: {
+		StkId cb = ra + 3;  /* call base */
+		setobj(cb + 2, ra + 2);
+		setobj(cb + 1, ra + 1);
+		setobj(cb, ra);
+		ks->top = cb + 3;  /* func. + 2 args (state and index) */
+		kp_call(ks, cb, GETARG_C(instr));
+		base = ci->u.l.base;
+		ks->top = ci->top;
+		instr = *(ci->u.l.savedpc++);  /* go to next instruction */
+		ra = RA(instr);
+		}
+		/*go through */
+	case OP_TFORLOOP:
+		if (!ttisnil(ra + 1)) {  /* continue loop? */
+			setobj(ra, ra + 1);  /* save control variable */
+			ci->u.l.savedpc += GETARG_sBx(instr);  /* jump back */
+		}
+		break;
+	case OP_SETLIST: {
+		int n = GETARG_B(instr);
+		int c = GETARG_C(instr);
+		int last;
+		ktap_table *h;
+
+		if (n == 0)
+			n = (int)(ks->top - ra) - 1;
+		if (c == 0)
+			c = GETARG_Ax(*ci->u.l.savedpc++);
+
+		h = hvalue(ra);
+		last = ((c - 1) * LFIELDS_PER_FLUSH) + n;
+		if (last > h->sizearray)  /* needs more space? */
+			kp_table_resizearray(ks, h, last);
+
+		for (; n > 0; n--) {
+			ktap_value *val = ra+n;
+			kp_table_setint(ks, h, last--, val);
+		}
+		/* correct top (in case of previous open call) */
+		ks->top = ci->top;
+		break;
+		}
+	case OP_CLOSURE: {
+		/* need to use closure cache? (multithread contention issue)*/
+		ktap_proto *p = cl->p->p[GETARG_Bx(instr)];
+		pushclosure(ks, p, cl->upvals, base, ra);
+		break;
+		}
+	case OP_VARARG: {
+		int b = GETARG_B(instr) - 1;
+		int j;
+		int n = (int)(base - ci->func) - cl->p->numparams - 1;
+		if (b < 0) {  /* B == 0? */
+			b = n;  /* get all var. arguments */
+			checkstack(ks, n);
+			/* previous call may change the stack */
+			ra = RA(instr);
+			ks->top = ra + n;
+		}
+		for (j = 0; j < b; j++) {
+			if (j < n) {
+				setobj(ra + j, base - n + j);
+			} else
+				setnilvalue(ra + j);
+		}
+		break;
+		}
+	case OP_EXTRAARG:
+		return;
+
+	case OP_EVENT: {
+		struct ktap_event *e = ks->current_event;
+
+		if (unlikely(!e)) {
+			kp_error(ks, "invalid event context\n");
+			return;
+		}
+		setevalue(ra, e);
+		break;
+		}
+
+	case OP_EVENTNAME: {
+		struct ktap_event *e = ks->current_event;
+
+		if (unlikely(!e)) {
+			kp_error(ks, "invalid event context\n");
+			return;
+		}
+		setsvalue(ra, kp_tstring_new(ks, e->call->name));
+		break;
+		}
+	case OP_EVENTARG:
+		if (unlikely(!ks->current_event)) {
+			kp_error(ks, "invalid event context\n");
+			return;
+		}
+
+		kp_event_getarg(ks, ra, GETARG_B(instr));		
+		break;
+	case OP_LOAD_GLOBAL: {
+		ktap_value *cfunc = cfunction_cache_get(ks, GETARG_C(instr));
+		setobj(ra, cfunc);
+		}
+		break;
+
+	case OP_EXIT:
+		return;
+	}
+
+	goto mainloop;
+}
+
+void kp_call(ktap_state *ks, StkId func, int nresults)
+{
+	if (!precall(ks, func, nresults))
+		ktap_execute(ks);
+}
+
+static int cfunction_cache_getindex(ktap_state *ks, ktap_value *fname);
+
+/*
+ * This function must be called before all code loaded.
+ */
+void kp_optimize_code(ktap_state *ks, int level, ktap_proto *f)
+{
+	int i;
+
+	for (i = 0; i < f->sizecode; i++) {
+		int instr = f->code[i];
+		ktap_value *k = f->k;
+
+		if (GET_OPCODE(instr) == OP_GETTABUP) {
+			if ((GETARG_B(instr) == 0) && ISK(GETARG_C(instr))) {
+				ktap_value *field = k + INDEXK(GETARG_C(instr));
+				if (ttype(field) == KTAP_TSTRING) {
+					int index = cfunction_cache_getindex(ks,
+									field);
+					if (index == -1)
+						break;
+
+					SET_OPCODE(instr, OP_LOAD_GLOBAL);
+					SETARG_C(instr, index);
+					f->code[i] = instr;
+					break;
+				}
+			}
+		}
+	}
+
+	/* continue optimize sub functions */
+	for (i = 0; i < f->sizep; i++)
+		kp_optimize_code(ks, level + 1, f->p[i]);
+}
+
+static ktap_value *cfunction_cache_get(ktap_state *ks, int index)
+{
+	return &G(ks)->cfunction_tbl[index];
+}
+
+static int cfunction_cache_getindex(ktap_state *ks, ktap_value *fname)
+{
+	const ktap_value *gt = kp_table_getint(hvalue(&G(ks)->registry),
+				KTAP_RIDX_GLOBALS);
+	const ktap_value *cfunc;
+	int nr, i;
+
+	nr = G(ks)->nr_builtin_cfunction;
+	cfunc = kp_table_get(hvalue(gt), fname);
+
+	for (i = 0; i < nr; i++) {
+		if (rawequalobj(&G(ks)->cfunction_tbl[i], cfunc))
+			return i;
+	}
+
+	return -1;
+}
+
+static void cfunction_cache_add(ktap_state *ks, ktap_value *func)
+{
+	int nr = G(ks)->nr_builtin_cfunction;
+	setobj(&G(ks)->cfunction_tbl[nr], func);
+	G(ks)->nr_builtin_cfunction++;
+}
+
+static void cfunction_cache_exit(ktap_state *ks)
+{
+	kp_free(ks, G(ks)->cfunction_tbl);
+}
+
+static int cfunction_cache_init(ktap_state *ks)
+{
+	G(ks)->cfunction_tbl = kp_zalloc(ks, sizeof(ktap_value) * 128);
+	if (!G(ks)->cfunction_tbl)
+		return -ENOMEM;
+
+	return 0;
+}
+
+/* function for register library */
+void kp_register_lib(ktap_state *ks, const char *libname, const ktap_Reg *funcs)
+{
+	int i;
+	ktap_table *target_tbl;
+	const ktap_value *gt = kp_table_getint(hvalue(&G(ks)->registry),
+					       KTAP_RIDX_GLOBALS);
+
+	/* lib is null when register baselib function */
+	if (libname == NULL)
+		target_tbl = hvalue(gt);
+	else {
+		ktap_value key, val;
+
+		target_tbl = kp_table_new(ks);
+		kp_table_resize(ks, target_tbl, 0,
+				sizeof(*funcs) / sizeof(ktap_Reg));
+
+		setsvalue(&key, kp_tstring_new(ks, libname));
+		sethvalue(&val, target_tbl);
+		kp_table_setvalue(ks, hvalue(gt), &key, &val);
+	}
+
+	for (i = 0; funcs[i].name != NULL; i++) {
+		ktap_value func_name, cl;
+
+		setsvalue(&func_name, kp_tstring_new(ks, funcs[i].name));
+		setfvalue(&cl, funcs[i].func);
+		kp_table_setvalue(ks, target_tbl, &func_name, &cl);
+
+		cfunction_cache_add(ks, &cl);
+	}
+}
+
+#define BASIC_STACK_SIZE        (2 * KTAP_MINSTACK)
+
+static void kp_init_registry(ktap_state *ks)
+{
+	ktap_value mt;
+	ktap_table *registry = kp_table_new(ks);
+
+	sethvalue(&G(ks)->registry, registry);
+	kp_table_resize(ks, registry, KTAP_RIDX_LAST, 0);
+	setthvalue(ks, &mt, ks);
+	kp_table_setint(ks, registry, KTAP_RIDX_MAINTHREAD, &mt);
+	sethvalue(&mt, kp_table_new(ks));
+	kp_table_setint(ks, registry, KTAP_RIDX_GLOBALS, &mt);
+}
+
+static int kp_init_arguments(ktap_state *ks, int argc, char __user **user_argv)
+{
+	const ktap_value *gt = kp_table_getint(hvalue(&G(ks)->registry),
+			   KTAP_RIDX_GLOBALS);
+	ktap_table *global_tbl = hvalue(gt);
+	ktap_table *arg_tbl = kp_table_new(ks);
+	ktap_value arg_tblval;
+	ktap_value arg_tsval;
+	char **argv;
+	int i, ret;
+	
+	setsvalue(&arg_tsval, kp_tstring_new(ks, "arg"));
+	sethvalue(&arg_tblval, arg_tbl);
+	kp_table_setvalue(ks, global_tbl, &arg_tsval, &arg_tblval);
+
+	if (!argc)
+		return 0;
+
+	if (argc > 1024)
+		return -EINVAL;
+
+	argv = kzalloc(argc * sizeof(char *), GFP_KERNEL);
+	if (!argv)
+		return -ENOMEM;
+
+	ret = copy_from_user(argv, user_argv, argc * sizeof(char *));
+	if (ret < 0) {
+		kfree(argv);
+		return -EFAULT;
+	}
+
+	kp_table_resize(ks, arg_tbl, argc, 1);
+
+	ret = 0;
+	for (i = 0; i < argc; i++) {
+		ktap_value val;
+		char __user *ustr = argv[i];
+		char * kstr;
+		int len;
+		int res;
+
+		len = strlen_user(ustr);
+		if (len > 0x1000) {
+			ret = -EINVAL;
+			break;
+		}
+
+		kstr = kmalloc(len + 1, GFP_KERNEL);
+		if (!kstr) {
+			ret = -ENOMEM;
+			break;
+		}
+
+		if (strncpy_from_user(kstr, ustr, len) < 0) {
+			ret = -EFAULT;
+			break;
+		}
+
+		kstr[len] = '\0';
+
+		if (!kstrtoint(kstr, 10, &res)) {
+			setnvalue(&val, res);
+		} else
+			setsvalue(&val, kp_tstring_new(ks, kstr));
+
+		kp_table_setint(ks, arg_tbl, i, &val);
+
+		kfree(kstr);
+	}
+
+	kfree(argv);
+	return ret;
+}
+
+DEFINE_PER_CPU(int, kp_recursion_context[PERF_NR_CONTEXTS]);
+
+/* todo: make this per-session aware */
+static void __percpu *kp_pcpu_data[KTAP_PERCPU_DATA_MAX][PERF_NR_CONTEXTS];
+
+void *kp_percpu_data(int type)
+{
+	return this_cpu_ptr(kp_pcpu_data[type][trace_get_context_bit()]);
+}
+
+static void free_kp_percpu_data(void)
+{
+	int i, j;
+
+	for (i = 0; i < KTAP_PERCPU_DATA_MAX; i++) {
+		for (j = 0; j < PERF_NR_CONTEXTS; j++) {
+			free_percpu(kp_pcpu_data[i][j]);
+			kp_pcpu_data[i][j] = NULL;
+		}
+	}
+}
+
+static int alloc_kp_percpu_data(void)
+{
+	int data_size[KTAP_PERCPU_DATA_MAX] = {
+		sizeof(ktap_state), KTAP_STACK_SIZE, KTAP_PERCPU_BUFFER_SIZE,
+		KTAP_PERCPU_BUFFER_SIZE, sizeof(ktap_btrace)};
+	int i, j;
+
+	for (i = 0; i < KTAP_PERCPU_DATA_MAX; i++) {
+		for (j = 0; j < PERF_NR_CONTEXTS; j++) {
+			void __percpu *data = __alloc_percpu(data_size[i],
+							     __alignof__(char));
+			if (!data)
+				goto fail;
+			kp_pcpu_data[i][j] = data;
+		}
+	}
+
+	return 0;
+
+ fail:
+	free_kp_percpu_data();
+	return -ENOMEM;
+}
+
+static void kp_init_state(ktap_state *ks)
+{
+	ktap_callinfo *ci;
+	int i;
+
+	ks->stacksize = BASIC_STACK_SIZE;
+
+	for (i = 0; i < BASIC_STACK_SIZE; i++)
+		setnilvalue(ks->stack + i);
+
+	ks->top = ks->stack;
+	ks->stack_last = ks->stack + ks->stacksize;
+
+	ci = &ks->baseci;
+	ci->callstatus = 0;
+	ci->func = ks->top;
+	setnilvalue(ks->top++);
+	ci->top = ks->top + KTAP_MINSTACK;
+	ks->ci = ci;
+}
+
+static void free_all_ci(ktap_state *ks)
+{
+	int cpu;
+
+	for_each_possible_cpu(cpu) {
+		ktap_state *ks;
+		int j;
+
+		for (j = 0; j < PERF_NR_CONTEXTS; j++) {
+			if (!kp_pcpu_data[KTAP_PERCPU_DATA_STATE][j])
+				break;
+
+			ks = per_cpu_ptr(kp_pcpu_data[KTAP_PERCPU_DATA_STATE][j], cpu);
+			if (!ks)
+				break;
+
+			free_ci(ks);
+		}
+	}
+
+	free_ci(ks);
+}
+
+void kp_exitthread(ktap_state *ks)
+{
+	/* free local allocation objects, like annotate strings */
+	kp_free_gclist(ks, ks->gclist);
+}
+
+ktap_state *kp_newthread(ktap_state *mainthread)
+{
+	ktap_state *ks;
+
+	ks = kp_percpu_data(KTAP_PERCPU_DATA_STATE);
+	ks->stack = kp_percpu_data(KTAP_PERCPU_DATA_STACK);
+	G(ks) = G(mainthread);
+	ks->gclist = NULL;
+	kp_init_state(ks);
+	return ks;
+}
+
+/*
+ * wait ktapio thread read all content in ring buffer.
+ *
+ * Here we use stupid approach to sync with ktapio thread,
+ * note that we cannot use semaphore/completion/other sync method,
+ * because ktapio thread could be killed by SIG_KILL in anytime, there
+ * have no safe way to up semaphore or wake waitqueue before thread exit.
+ *
+ * we also cannot use waitqueue of current->signal->wait_chldexit to sync
+ * exit, becasue mainthread and ktapio thread are in same thread group.
+ *
+ * Also ktap mainthread must wait ktapio thread exit, otherwise ktapio
+ * thread will oops when access ktap structure.
+ */
+static void wait_user_completion(ktap_state *ks)
+{
+	struct task_struct *tsk = G(ks)->task;
+	G(ks)->wait_user = 1;
+
+	while (1) {
+		set_current_state(TASK_INTERRUPTIBLE);
+		/* sleep for 100 msecs, and try again. */
+		schedule_timeout(HZ / 10);
+
+		if (get_nr_threads(tsk) == 1)
+			break;
+	}
+}
+
+/* kp_wait: used for mainthread waiting for exit */
+static void kp_wait(ktap_state *ks)
+{
+	struct task_struct *task = G(ks)->trace_task;
+
+	if (G(ks)->exit)
+		return;
+
+	ks->stop = 0;
+
+	/* tell workload process to start executing */
+	if (G(ks)->parm->workload)
+		send_sig(SIGINT, G(ks)->trace_task, 0);
+
+	while (!ks->stop) {
+		set_current_state(TASK_INTERRUPTIBLE);
+		/* sleep for 100 msecs, and try again. */
+		schedule_timeout(HZ / 10);
+
+		if (signal_pending(current)) {
+			flush_signals(current);
+
+			/* newline for handle CTRL+C display as ^C */
+			kp_puts(ks, "\n");
+			break;
+		}
+
+		/* stop waiting if target pid is exited */
+		if (task && task->state == TASK_DEAD)
+				break;
+	}
+
+}
+
+void kp_exit(ktap_state *ks)
+{
+	set_next_as_exit(ks);
+
+	G(ks)->mainthread->stop = 1;
+	G(ks)->exit = 1;
+}
+
+void kp_final_exit(ktap_state *ks)
+{
+	if (!list_empty(&G(ks)->probe_events_head) ||
+	    !list_empty(&G(ks)->timers))
+		kp_wait(ks);
+
+	if (G(ks)->trace_task)
+		put_task_struct(G(ks)->trace_task);
+
+	kp_exit_timers(ks);
+	kp_probe_exit(ks);
+
+	/* free all resources got by ktap */
+	kp_tstring_freeall(ks);
+	kp_free_all_gcobject(ks);
+	cfunction_cache_exit(ks);
+
+	wait_user_completion(ks);
+
+	kp_transport_exit(ks);
+
+	kp_exitthread(ks);
+	kp_free(ks, ks->stack);
+	free_all_ci(ks);
+
+	free_kp_percpu_data();
+
+	free_cpumask_var(G(ks)->cpumask);
+	kp_free(ks, ks);
+}
+
+/* ktap mainthread initization, main entry for ktap */
+ktap_state *kp_newstate(ktap_parm *parm, struct dentry *dir)
+{
+	ktap_state *ks;
+	pid_t pid;
+	int cpu;
+
+	ks = kzalloc(sizeof(ktap_state) + sizeof(ktap_global_state),
+		     GFP_KERNEL);
+	if (!ks)
+		return NULL;
+
+	ks->stack = kp_malloc(ks, KTAP_STACK_SIZE);
+	G(ks) = (ktap_global_state *)(ks + 1);
+	G(ks)->mainthread = ks;
+	G(ks)->seed = 201236; /* todo: make more random in future */
+	G(ks)->task = current;
+	G(ks)->parm = parm;
+	INIT_LIST_HEAD(&(G(ks)->timers));
+	INIT_LIST_HEAD(&(G(ks)->probe_events_head));
+	G(ks)->exit = 0;
+
+	if (kp_transport_init(ks, dir))
+		goto out;
+
+	pid = (pid_t)parm->trace_pid;
+	if (pid != -1) {
+		struct task_struct *task;
+
+		rcu_read_lock();
+		task = pid_task(find_vpid(pid), PIDTYPE_PID);
+		if (!task) {
+			kp_error(ks, "cannot find pid %d\n", pid);
+			rcu_read_unlock();
+			goto out;
+		}
+		G(ks)->trace_task = task;
+		get_task_struct(task);
+		rcu_read_unlock();
+	}
+
+	if( !alloc_cpumask_var(&G(ks)->cpumask, GFP_KERNEL))
+		goto out;
+
+	cpumask_copy(G(ks)->cpumask, cpu_online_mask);
+
+	cpu = parm->trace_cpu;
+	if (cpu != -1) {
+		if (!cpu_online(cpu)) {
+			printk(KERN_INFO "ktap: cpu %d is not online\n", cpu);
+			goto out;
+		}
+
+		cpumask_clear(G(ks)->cpumask);
+		cpumask_set_cpu(cpu, G(ks)->cpumask);
+	}
+
+	if (cfunction_cache_init(ks))
+		goto out;
+
+	kp_tstring_resize(ks, 512); /* set inital string hashtable size */
+
+	kp_init_state(ks);
+	kp_init_registry(ks);
+	kp_init_arguments(ks, parm->argc, parm->argv);
+
+	/* init library */
+	kp_init_baselib(ks);
+	kp_init_kdebuglib(ks);
+	kp_init_timerlib(ks);
+	kp_init_ansilib(ks);
+
+	if (alloc_kp_percpu_data())
+		goto out;
+
+	if (kp_probe_init(ks))
+		goto out;
+
+	return ks;
+
+ out:
+	G(ks)->exit = 1;
+	kp_final_exit(ks);
+	return NULL;
+}
+
diff --git a/drivers/staging/ktap/scripts/basic/backtrace.kp b/drivers/staging/ktap/scripts/basic/backtrace.kp
new file mode 100644
index 000000000000..39b8c3989e7f
--- /dev/null
+++ b/drivers/staging/ktap/scripts/basic/backtrace.kp
@@ -0,0 +1,6 @@
+#!/usr/bin/env ktap
+
+trace sched:sched_switch {
+	print_backtrace()
+}
+
diff --git a/drivers/staging/ktap/scripts/basic/event_trigger.kp b/drivers/staging/ktap/scripts/basic/event_trigger.kp
new file mode 100644
index 000000000000..3cc8b04f361e
--- /dev/null
+++ b/drivers/staging/ktap/scripts/basic/event_trigger.kp
@@ -0,0 +1,24 @@
+#!/usr/bin/env ktap
+
+soft_disabled = 1
+this_cpu = 0
+
+trace syscalls:sys_enter_open {
+	print(argevent)
+	soft_disabled = 0
+	this_cpu = cpu()
+}
+
+trace *:* {
+	if (soft_disabled == 0 && cpu() == this_cpu) {
+		print(argevent)
+	}
+}
+
+trace syscalls:sys_exit_open {
+	print(argevent)
+	if (cpu() == this_cpu) {
+		exit()
+	}
+}
+
diff --git a/drivers/staging/ktap/scripts/basic/event_trigger_ftrace.kp b/drivers/staging/ktap/scripts/basic/event_trigger_ftrace.kp
new file mode 100644
index 000000000000..7e0d7d315619
--- /dev/null
+++ b/drivers/staging/ktap/scripts/basic/event_trigger_ftrace.kp
@@ -0,0 +1,28 @@
+#!/usr/bin/env ktap
+
+
+#This ktap script will output all function calling between
+#sys_enter_open and sys_exit_open, in one cpu.
+
+soft_disabled = 1
+this_cpu = 0
+
+trace syscalls:sys_enter_open {
+	print(argevent)
+	soft_disabled = 0
+	this_cpu = cpu()
+}
+
+trace ftrace:function {
+	if (soft_disabled == 0 && cpu() == this_cpu) {
+		print(argevent)
+	}
+}
+
+trace syscalls:sys_exit_open {
+	print(argevent)
+	if (cpu() == this_cpu) {
+		exit()
+	}
+}
+
diff --git a/drivers/staging/ktap/scripts/basic/ftrace.kp b/drivers/staging/ktap/scripts/basic/ftrace.kp
new file mode 100644
index 000000000000..9feca2ba2318
--- /dev/null
+++ b/drivers/staging/ktap/scripts/basic/ftrace.kp
@@ -0,0 +1,6 @@
+#!/usr/bin/env ktap
+
+trace ftrace:function /ip==mutex*/ {
+	print(cpu(), pid(), execname(), argevent)
+}
+
diff --git a/drivers/staging/ktap/scripts/basic/function_time.kp b/drivers/staging/ktap/scripts/basic/function_time.kp
new file mode 100644
index 000000000000..e7859a396d95
--- /dev/null
+++ b/drivers/staging/ktap/scripts/basic/function_time.kp
@@ -0,0 +1,57 @@
+#!/usr/bin/env ktap
+
+#Demo for thread-local variable
+#
+#Note this kind of function time tracing already handled concurrent issue,
+#but not aware on the recursion problem, user need to aware this limitation,
+#so don't use this script to trace function which could be called recursive.
+
+self = {}
+count_max = 0
+count_min = 0
+count_num = 0
+total_time = 0
+
+printf("measure time(us) of function vfs_read\n");
+
+trace probe:vfs_read {
+	if (execname() == "ktap") {
+		return
+	}
+
+	self[tid()] = gettimeofday_us()
+}
+
+trace probe:vfs_read%return {
+	if (execname() == "ktap") {
+		return
+	}
+
+	if (self[tid()] == nil) {
+		return
+	}
+
+	local durtion = gettimeofday_us() - self[tid()]
+	if (durtion > count_max) {
+		count_max = durtion
+	}
+	local min = count_min
+	if (min == 0 || durtion < min) {
+		count_min = durtion
+	}
+
+	count_num = count_num + 1
+	total_time = total_time + durtion
+
+	self[tid()] = nil
+}
+
+trace_end {
+	printf("avg\tmax\tmin\n");
+	printf("-------------------\n")
+
+	printf("%d\t%d\t%d\n", total_time/count_num,
+		count_max, count_min)
+}
+
+
diff --git a/drivers/staging/ktap/scripts/basic/kretprobe.kp b/drivers/staging/ktap/scripts/basic/kretprobe.kp
new file mode 100644
index 000000000000..82de3cffa276
--- /dev/null
+++ b/drivers/staging/ktap/scripts/basic/kretprobe.kp
@@ -0,0 +1,6 @@
+#!/usr/bin/env ktap
+
+trace probe:vfs_read%return fd=$retval {
+	print(execname(), argevent);
+}
+
diff --git a/drivers/staging/ktap/scripts/game/tetris.kp b/drivers/staging/ktap/scripts/game/tetris.kp
new file mode 100644
index 000000000000..7125cd4e46ce
--- /dev/null
+++ b/drivers/staging/ktap/scripts/game/tetris.kp
@@ -0,0 +1,328 @@
+#!/usr/bin/env ktap
+ 
+#
+# Tetris KTAP Script
+#
+# Copyright (C) 2013/OCT/05 Tadaki SAKAI
+#
+# based on stapgames (Systemtap Game Collection)
+#   https://github.com/mhiramat/stapgames/blob/master/games/tetris.stp
+#
+#   - Requirements
+#     Kernel Configuration: CONFIG_KPROBE_EVENT=y
+#                           CONFIG_EVENT_TRACING=y
+#                           CONFIG_PERF_EVENTS=y
+#                           CONFIG_DEBUG_FS=y
+#     CPU Architecture : x86_64
+#
+#   - Setup
+#     $ sudo mount -t debugfs none /sys/kernel/debug/
+#
+#     $ git clone https://github.com/ktap/ktap
+#     $ cd ktap
+#     $ make 2>&1 | tee ../make.log
+#     $ sudo make load
+#     $ sudo sh -c 'echo 50000 > /sys/module/ktapvm/parameters/max_exec_count'
+#
+#   - Run Tetris
+#     $ sudo ./ktap scripts/game/tetris.kp
+#
+ 
+ 
+#
+# utils
+#
+ 
+function rand(max) {
+	r = gettimeofday_us()
+	if (r < 0) {
+		r = r * -1
+	}
+	return r % max
+}
+ 
+color_table = {}
+color_table["Black"]	= 40
+color_table["Red"]	= 41
+color_table["Green"]	= 42
+color_table["Yellow"]	= 43
+color_table["Blue"]	= 44
+color_table["Purple"]	= 45
+color_table["Cyan"]	= 46
+color_table["White"]	= 47
+ 
+function get_color_number(txt) {
+	return color_table[txt]
+}
+ 
+color_table_text = {}
+color_table_text[40] = "Black"
+color_table_text[41] = "Red"
+color_table_text[42] = "Green"
+color_table_text[43] = "Yellow"
+color_table_text[44] = "Blue"
+color_table_text[45] = "Purple"
+color_table_text[46] = "Cyan"
+color_table_text[47] = "White"
+ 
+function get_color_text(num) {
+	return color_table_text[num]
+}
+
+function update_display() {
+	for (i = 0, 239, 1) {
+		if ((i % 12 - 11) != 0) {
+			tmp = ""
+		} else {
+			tmp = "\n"
+		}
+
+		if (display_buffer[240 + i] == back_text) {
+			printf("%s%s", back_text, tmp)
+		} else {
+			ctext = display_buffer[240 + i]
+			ansi.set_color2(get_color_number(ctext), 
+					get_color_number(ctext))
+			printf("  %s", tmp)
+			ansi.reset_color()
+		}
+
+		# clear the display buffer
+		display_buffer[240 + i] = display_buffer[i]
+	}
+
+	printf("%d\n",point)
+}
+
+ 
+#
+# global value
+#
+ 
+key_code = 0
+point = 0
+block_number = 0
+height = 0
+height_update = 0
+ 
+destination_position = {}
+back_text = {}
+block_color = {}
+display_buffer = {}
+ 
+block_data0 = {}
+block_data1 = {}
+block_data2 = {}
+block_data3 = {}
+block_data4 = {}
+block_data5 = {}
+block_data6 = {}
+block_table = {}
+ 
+#
+# Initialize
+#
+ 
+# Create blocks
+# block is represented by the position from the center.
+# Every block has "L" part in the center except for a bar.
+block_data0[0] = -11 # non-"L" part for each block
+block_data1[0] = -24
+block_data2[0] = 2
+block_data3[0] = 13
+block_data4[0] = -13
+block_data5[0] = -1
+block_data6[0] = 2
+	
+block_table[0] = block_data0
+block_table[1] = block_data1
+block_table[2] = block_data2
+block_table[3] = block_data3
+block_table[4] = block_data4
+block_table[5] = block_data5
+block_table[6] = block_data6
+ 
+for (i = 0, len(block_table) - 1, 1) {
+	# common "L" part
+	block_table[i][1] = 0
+	block_table[i][2] = 1
+	block_table[i][3] = -12
+}
+ 
+block_table[6][3] = -1 # bar is not common
+# Position: 1 row has 12 columns, 
+# and (x, y) is represented by h = x + y * 12.p
+height = 17 # First block position (center)
+
+for (i = 0, 240, 1) {
+	# Wall and Floor (sentinel)
+	if (((i % 12) < 2) || (i > 228)) {
+		block_color = "White"
+		tmp = block_color
+	} else {
+		back_text = "  "
+		tmp = back_text
+	}
+	display_buffer[i - 1] = tmp
+	display_buffer[240 + i - 1] = tmp
+}
+
+block_number = rand(len(color_table) - 1)
+block_color = get_color_text(block_number + 40)
+
+ansi.clear_screen()
+ 
+ 
+#
+# Key Input
+#
+ 
+trace probe:kbd_event handle=%di event_type=%si event_code=%dx value=%cx {
+	# Only can run it in x86_64
+	#
+	# Register follow x86_64 call conversion:
+	#
+	# x86_64:
+	#	%rcx	4 argument
+	#	%rdx	3 argument
+	#	%rsi	2 argument
+	#	%rdi	1 argument
+ 
+	local event_code = arg4
+	local value = arg5
+ 
+	if (value != 0) {
+		if ((event_code - 4) != 0) {
+			key_code = event_code
+		}
+	}
+}
+ 
+ 
+#
+# timer
+#
+ 
+tick-200ms {
+	ansi.clear_screen()
+ 
+	f = 0 # move/rotate flag
+ 
+	if (key_code != 0) { # if key is pressed
+		if(key_code != 103) { #move left or right
+			# d: movement direction
+			if ((key_code - 105) != 0) {
+				if ((key_code - 106) != 0) {
+					d = 0
+				} else {
+					d = 1
+				}
+			} else {
+				d = -1
+			}
+ 
+			for (i = 0, 3, 1) { # check if the block can be moved
+				# destination is free
+				if (display_buffer[height +
+					block_table[block_number][i] + d] 
+				    != back_text) {
+					f = 1
+				}
+			}
+			# move if destinations of every block are free
+			if (f == 0) {
+				height = height + d
+			} 
+		} else { # rotate
+			for (i = 0, 3, 1) { # check if block can be rotated
+				# each block position
+				p = block_table[block_number][i]
+ 
+				# destination x pos(p/12 rounded)
+				v = (p * 2 + 252) / 24 - 10
+				w = p - v * 12 # destination y pos
+ 
+				# destination position
+				destination_position[i] = w * 12 - v
+ 
+				# check if desetination is free
+				if (display_buffer[height +
+				    destination_position[i]] != back_text) {
+					f = 1
+				}
+			}
+ 
+			if (f == 0) {
+				# rotate if destinations of every block
+				# are free
+				for (i = 0, 3, 1) {
+					block_table[block_number][i] = 
+						destination_position[i] 
+				}
+			}
+		}
+	}
+	key_code = 0 # clear the input key
+ 
+	f = 0
+	for (i = 0, 3, 1) { # drop 1 row
+		# check if destination is free
+		p = height + block_table[block_number][i]
+		if (display_buffer[12 + p] != back_text) {
+			f = 1
+		}
+ 
+		# copy the moving block to display buffer
+		display_buffer[240 + p] = block_color
+	}
+
+	if ((f == 1) && (height == 17)) {
+		update_display()
+		exit() # exit if there are block at initial position
+	}
+ 
+	height_update = !height_update
+	if (height_update != 0) {
+		if(f != 0) { # the block can't drop anymore
+			for (i = 0, 3, 1) {
+				# fix the block
+				display_buffer[height + 
+				  block_table[block_number][i]] = block_color 
+			}
+			# determin the next block
+			block_number = rand(len(color_table) - 1)
+ 
+			block_color = get_color_text(block_number + 40)
+ 
+			height = 17 # make the block to initial position
+		} else {
+			height = height + 12 # drop the block 1 row
+		}
+	}
+ 
+	k = 1
+	for (i = 18, 0, -1) { #check if line is filled
+		# search for filled line
+		j = 10
+		while ((j > 0) && 
+		       (display_buffer[i * 12 + j] != back_text)) {
+			j = j - 1
+		}
+ 
+		if (j == 0) { # filled!
+			# add a point: 1 line - 1 point, ..., tetris - 10points
+			point = point + k
+			k = k + 1
+ 
+			# drop every upper block
+			j = (i + 1) * 12
+			i = i + 1
+			while (j > 2 * 12) {
+				j = j - 1
+				display_buffer[j] = display_buffer[j - 12] 
+			}
+		}
+	}
+ 
+	update_display()
+}
diff --git a/drivers/staging/ktap/scripts/helloworld.kp b/drivers/staging/ktap/scripts/helloworld.kp
new file mode 100644
index 000000000000..5673c15b0226
--- /dev/null
+++ b/drivers/staging/ktap/scripts/helloworld.kp
@@ -0,0 +1,3 @@
+#!/usr/bin/env ktap
+
+print("Hello World! I am ktap")
diff --git a/drivers/staging/ktap/scripts/interrupt/hardirq_time.kp b/drivers/staging/ktap/scripts/interrupt/hardirq_time.kp
new file mode 100644
index 000000000000..1d3c33e859d1
--- /dev/null
+++ b/drivers/staging/ktap/scripts/interrupt/hardirq_time.kp
@@ -0,0 +1,25 @@
+#!/usr/bin/env ktap
+
+#this script output each average consumimg time of each hardirq
+s = aggr_table()
+map = {}
+
+trace irq:irq_handler_entry {
+	map[cpu()] = gettimeofday_us()
+}
+
+trace irq:irq_handler_exit {
+	local entry_time = map[cpu()]
+	if (entry_time == nil) {
+		return;
+	}
+
+	s[arg1] = avg(gettimeofday_us() - entry_time)
+	map[cpu()] = nil
+}
+
+trace_end {
+	print("hardirq average executing time (us)")
+	histogram(s)
+}
+
diff --git a/drivers/staging/ktap/scripts/interrupt/softirq_time.kp b/drivers/staging/ktap/scripts/interrupt/softirq_time.kp
new file mode 100644
index 000000000000..7e1a9d8a9172
--- /dev/null
+++ b/drivers/staging/ktap/scripts/interrupt/softirq_time.kp
@@ -0,0 +1,25 @@
+#!/usr/bin/env ktap
+
+#this script output each average consumimg time of each softirq line
+s = aggr_table()
+map = {}
+
+trace irq:softirq_entry {
+	map[cpu()] = gettimeofday_us()
+}
+
+trace irq:softirq_exit {
+	local entry_time = map[cpu()]
+	if (entry_time == nil) {
+		return;
+	}
+
+	s[arg1] = avg(gettimeofday_us() - entry_time)
+	map[cpu()] = nil
+}
+
+trace_end {
+	print("softirq average executing time (us)")
+	histogram(s)
+}
+
diff --git a/drivers/staging/ktap/scripts/io/kprobes-do-sys-open.kp b/drivers/staging/ktap/scripts/io/kprobes-do-sys-open.kp
new file mode 100644
index 000000000000..a15f911a1804
--- /dev/null
+++ b/drivers/staging/ktap/scripts/io/kprobes-do-sys-open.kp
@@ -0,0 +1,20 @@
+#!/usr/bin/env ktap
+
+#Only can run it in x86_64
+#
+#Register follow x86_64 call conversion:
+#
+#x86_64:
+#	%rcx	4 argument
+#	%rdx	3 argument
+#	%rsi	2 argument
+#	%rdi	1 argument
+
+trace probe:do_sys_open dfd=%di filename=%si flags=%dx mode=%cx {
+	printf("[do_sys_open entry]: (%s) open file (%s)\n",
+		execname(),  user_string(arg3))
+}
+
+trace probe:do_sys_open%return fd=$retval {
+	printf("[do_sys_open exit]:  return fd (%d)\n", arg3)
+}
diff --git a/drivers/staging/ktap/scripts/io/traceio.kp b/drivers/staging/ktap/scripts/io/traceio.kp
new file mode 100644
index 000000000000..8a95a2534384
--- /dev/null
+++ b/drivers/staging/ktap/scripts/io/traceio.kp
@@ -0,0 +1,56 @@
+#! /usr/bin/env ktap
+
+# Based on systemtap traceio.stp
+
+#this script is broken, fix it soon.
+
+reads = aggr_table()
+writes = aggr_table()
+total_io = aggr_table()
+
+trace syscalls:sys_exit_read {
+	reads[execname()] = sum(arg2)
+	total_io[execname()] = sum(arg2)
+}
+
+trace syscalls:sys_exit_write {
+	writes[execname()] = sum(arg2)
+	total_io[execname()] = sum(arg2)
+}
+
+function humanread_digit(bytes) {
+	if (bytes > 1024*1024*1024) {
+		return bytes/1024/1024/1024
+	} elseif (bytes > 1024*1024) {
+		return bytes/1024/1024
+	} elseif (bytes > 1024) {
+		return bytes/1024
+	} else {
+		return bytes
+	}
+}
+
+function humanread_x(bytes) {
+	if (bytes > 1024*1024*1024) {
+		return " GiB"
+	} elseif (bytes > 1024*1024) {
+		return " MiB"
+	} elseif (bytes > 1024) {
+		return " KiB"
+	} else {
+		return "   B"
+	}
+}
+
+tick-1s {
+	ansi.clear_screen()
+	for (exec, count in pairs(total_io)) {
+		local readnum = reads[exec]
+		local writenum = writes[exec]
+		printf("%15s r: %12d%s w: %12d%s\n", exec,
+			humanread_digit(readnum), humanread_x(readnum),
+			humanread_digit(writenum), humanread_x(writenum))
+	}
+	printf("\n")
+}
+
diff --git a/drivers/staging/ktap/scripts/mem/kmalloc-top.kp b/drivers/staging/ktap/scripts/mem/kmalloc-top.kp
new file mode 100644
index 000000000000..f18ed9fc64cf
--- /dev/null
+++ b/drivers/staging/ktap/scripts/mem/kmalloc-top.kp
@@ -0,0 +1,17 @@
+#!/usr/bin/env ktap
+
+kmalloc_stack = {}
+
+trace kmem:kmalloc {
+	kmalloc_stack[backtrace()] += 1
+}
+
+tick-60s {
+	for (k, v in pairs(kmalloc_stack)) {
+		print(k)
+		printf("%d\n\n", v)
+	}
+
+	exit()
+}
+
diff --git a/drivers/staging/ktap/scripts/mem/kmem.kp b/drivers/staging/ktap/scripts/mem/kmem.kp
new file mode 100644
index 000000000000..c6f2c99c54cd
--- /dev/null
+++ b/drivers/staging/ktap/scripts/mem/kmem.kp
@@ -0,0 +1,30 @@
+#!/usr/bin/env ktap
+
+count1 = 0
+trace kmem:kmalloc {
+	count1 = count1 + 1
+}
+
+count2 = 0
+trace kmem:kfree {
+	count2 = count2 + 1
+}
+
+count3 = 0
+trace kmem:mm_page_alloc {
+	count3 = count3 + 1
+}
+
+count4 = 0
+trace kmem:mm_page_free {
+	count4 = count4 + 1
+}
+
+trace_end {
+	print("\n")
+	print("kmem:kmalloc:\t", count1)
+	print("kmem:kfree:\t", count2)
+	print("kmem:mm_page_alloc:", count3)
+	print("kmem:mm_page_free:", count4)
+	print("trace ending\n")
+}
diff --git a/drivers/staging/ktap/scripts/profiling/function_profiler.kp b/drivers/staging/ktap/scripts/profiling/function_profiler.kp
new file mode 100644
index 000000000000..589017fe83b4
--- /dev/null
+++ b/drivers/staging/ktap/scripts/profiling/function_profiler.kp
@@ -0,0 +1,41 @@
+#!/usr/bin/env ktap
+
+#kernel function profile
+#You can use this script to know what function is called frequently,
+#without enable CONFIG_FUNCTION_PROFILER in kernel.
+
+s = aggr_table()
+
+trace ftrace:function {
+	s[arg1] = count()
+}
+
+trace_end {
+	histogram(s)
+}
+
+#sample output
+#^C
+#                          value ------------- Distribution ------------- count
+#               sub_preempt_count | @@@@@                                  34904
+#               add_preempt_count | @@@@@                                  33435
+#              nsecs_to_jiffies64 | @@@                                    19919
+# irqtime_account_process_tick... | @                                      9970
+#               account_idle_time | @                                      9880
+#                  _raw_spin_lock |                                        5100
+#                _raw_spin_unlock |                                        5021
+#     _raw_spin_unlock_irqrestore |                                        4235
+#          _raw_spin_lock_irqsave |                                        4232
+#                 __rcu_read_lock |                                        3373
+#               __rcu_read_unlock |                                        3373
+#                  lookup_address |                                        2392
+#             pfn_range_is_mapped |                                        2384
+#      update_cfs_rq_blocked_load |                                        1983
+#                        idle_cpu |                                        1808
+#                       ktime_get |                                        1394
+#            _raw_spin_unlock_irq |                                        1270
+#              _raw_spin_lock_irq |                                        1091
+#                     update_curr |                                        950
+#             irqtime_account_irq |                                        950
+#                             ... |
+#
diff --git a/drivers/staging/ktap/scripts/profiling/stack_profile.kp b/drivers/staging/ktap/scripts/profiling/stack_profile.kp
new file mode 100644
index 000000000000..97945602fcea
--- /dev/null
+++ b/drivers/staging/ktap/scripts/profiling/stack_profile.kp
@@ -0,0 +1,26 @@
+#!/usr/bin/env ktap
+
+# This ktap script samples stacktrace of system per 10us,
+# you can use generated output to make a flame graph.
+#
+# Flame Graphs:
+# http://dtrace.org/blogs/brendan/2012/03/17/linux-kernel-performance-flame-graphs/
+
+s = aggr_table()
+
+profile-10us {
+	s[backtrace()] = count()
+}
+
+tick-60s {
+	exit()
+}
+
+trace_end {
+	for (k, v in pairs(s)) {
+		print(k)
+		print(v)
+		print()
+	}
+}
+
diff --git a/drivers/staging/ktap/scripts/schedule/sched_transition.kp b/drivers/staging/ktap/scripts/schedule/sched_transition.kp
new file mode 100644
index 000000000000..eb54b09c3248
--- /dev/null
+++ b/drivers/staging/ktap/scripts/schedule/sched_transition.kp
@@ -0,0 +1,5 @@
+#!/usr/bin/env ktap
+
+trace sched:sched_switch {
+	printf("%s ... ", arg1)
+}
diff --git a/drivers/staging/ktap/scripts/schedule/schedtimes.kp b/drivers/staging/ktap/scripts/schedule/schedtimes.kp
new file mode 100644
index 000000000000..acef904a2cae
--- /dev/null
+++ b/drivers/staging/ktap/scripts/schedule/schedtimes.kp
@@ -0,0 +1,125 @@
+#!/usr/vin/env ktap
+
+#schedtimer.kp
+#Initially inspired by Systemtap schedtimes.stp
+#and more bugfree compare with Systemtap's version
+#
+#Note that the time value is associate with pid, not with execname strictly,
+#sometime you will found there have sleep time for command "ls", the reason
+#is that sleep time is belong to parent process bash, so clear on this.
+
+RUNNING = 0
+QUEUED = 1
+SLEEPING = 2
+DEAD = 64
+
+run_time = {}
+queued_time = {}
+sleep_time = {}
+io_wait_time = {}
+
+pid_state = {}
+pid_names = {}
+prev_timestamp = {}
+io_wait = {}
+
+trace sched:sched_switch {
+	local prev_comm = arg1
+	local prev_pid = arg2
+	local prev_state = arg4
+	local next_comm = arg5
+	local next_pid = arg6
+	local t = gettimeofday_us()
+
+	if (pid_state[prev_pid] == nil) {
+		#do nothing
+	} elseif (pid_state[prev_pid] == RUNNING) {
+		run_time[prev_pid] += t - prev_timestamp[prev_pid]
+	} elseif (pid_state[prev_pid] == QUEUED) {
+		#found this:
+		#sched_wakeup comm=foo
+		#sched_switch prev_comm=foo
+		run_time[prev_pid] += t - prev_timestamp[prev_pid]
+	}
+
+	pid_names[prev_pid] = prev_comm
+	prev_timestamp[prev_pid] = t
+
+	if (prev_state == DEAD) {
+		pid_state[prev_pid] = DEAD
+	} elseif (prev_state > 0) {
+		if (in_iowait() == 1) {
+			io_wait[prev_pid] = 1
+		}
+		pid_state[prev_pid] = SLEEPING
+	} elseif (prev_state == 0) {
+		pid_state[prev_pid] = QUEUED
+	}
+
+	if (pid_state[next_pid] == nil) {
+		pid_state[next_pid] = RUNNING
+	} elseif (pid_state[next_pid] == QUEUED) {
+		queued_time[next_pid] += t - prev_timestamp[next_pid]
+		pid_state[next_pid] = RUNNING
+	}
+
+	pid_names[next_pid] = next_comm
+	prev_timestamp[next_pid] = t
+}
+
+trace sched:sched_wakeup, sched:sched_wakeup_new {
+	local comm = arg1
+	local wakeup_pid = arg2
+	local success = arg4
+	local t = gettimeofday_us()
+
+	if (pid_state[wakeup_pid] == nil) {
+		#do nothing
+	} elseif (pid_state[wakeup_pid] == SLEEPING) {
+		local durtion = t - prev_timestamp[wakeup_pid]
+
+		sleep_time[wakeup_pid] += durtion
+		if (io_wait[wakeup_pid] == 1) {
+			io_wait_time[wakeup_pid] += durtion
+			io_wait[wakeup_pid] = 0
+		}
+	} elseif (pid_state[wakeup_pid] == RUNNING) {
+		return
+	}
+
+	pid_names[wakeup_pid] = comm
+	prev_timestamp[wakeup_pid] = t
+	pid_state[wakeup_pid] = QUEUED
+}
+
+trace_end {
+	local t = gettimeofday_us()
+	
+	for (pid, state in pairs(pid_state)) {
+		local durtion = t - prev_timestamp[pid]
+		if (state == SLEEPING) {
+			sleep_time[pid] += durtion
+		} elseif (state == QUEUED) {
+			queued_time[pid] += durtion
+		} elseif (state == RUNNING) {
+			run_time[pid] += durtion
+		}
+	}
+
+	printf ("%16s: %6s %10s %10s %10s %10s %10s\n\n",
+		"execname", "pid", "run(us)", "sleep(us)", "io_wait(us)",
+		"queued(us)", "total(us)")
+
+	for (pid, time in pairs(run_time)) {
+		if (sleep_time[pid] == nil) {
+			sleep_time[pid] = 0
+		}
+		if (queued_time[pid] == nil) {
+			queue_time[pid] = 0
+		}
+		printf("%16s: %6d %10d %10d %10d %10d %10d\n",
+			pid_names[pid], pid, run_time[pid], sleep_time[pid],
+			io_wait_time[pid], queued_time[pid],
+			run_time[pid] + sleep_time[pid] + queued_time[pid]);
+	}
+}
diff --git a/drivers/staging/ktap/scripts/syscalls/errinfo.kp b/drivers/staging/ktap/scripts/syscalls/errinfo.kp
new file mode 100644
index 000000000000..049031b3e374
--- /dev/null
+++ b/drivers/staging/ktap/scripts/syscalls/errinfo.kp
@@ -0,0 +1,145 @@
+#!/usr/bin/env ktap
+
+#errdesc get from include/uapi/asm-generic/errno*.h
+errdesc = {
+	[1] = "Operation not permitted",		#EPERM
+	[2] = "No such file or directory",		#ENOENT
+	[3] = "No such process",			#ESRCH
+	[4] = "Interrupted system call",		#EINRT
+	[5] = "I/O error",				#EIO
+	[6] = "No such device or address",		#ENXIO
+	[7] = "Argument list too long",			#E2BIG
+	[8] = "Exec format error",			#ENOEXEC
+	[9] = "Bad file number",			#EBADF
+	[10] = "No child processes",			#ECHILD
+	[11] = "Try again",				#EAGAIN
+	[12] = "Out of memory",				#ENOMEM
+	[13] = "Permission denied",			#EACCES
+	[14] = "Bad address",				#EFAULT
+	[15] = "Block device required",			#ENOTBLK
+	[16] = "Device or resource busy",		#EBUSY
+	[17] = "File exists",				#EEXIST
+	[18] = "Cross-device link",			#EXDEV
+	[19] = "No such device",			#ENODEV
+	[20] = "Not a directory",			#ENOTDIR
+	[21] = "Is a directory",			#EISDIR
+	[22] = "Invalid argument",			#EINVAL
+	[23] = "File table overflow",			#ENFILE
+	[24] = "Too many open files",			#EMFILE
+	[25] = "Not a typewriter",			#ENOTTY
+	[26] = "Text file busy",			#ETXTBSY
+	[27] = "File too large",			#EFBIG
+	[28] = "No space left on device",		#ENOSPC
+	[29] = "Illegal seek",				#ESPIPE
+	[30] = "Read-only file system",			#EROFS
+	[31] = "Too many links",			#EMLINK
+	[32] = "Broken pipe",				#EPIPE
+	[33] = "Math argument out of domain of func",	#EDOM
+	[34] = "Math result not representable",		#ERANGE
+
+	[35] = "Resource deadlock would occur",		#EDEADLK
+	[36] = "File name too long", 			#ENAMETOOLONG
+	[37] = "No record locks available",		#ENOLCK
+	[38] = "Function not implemented",		#ENOSYS
+	[39] = "Directory not empty",			#ENOTEMPTY		
+	[40] = "Too many symbolic links encountered",	#ELOOP
+	[42] = "No message of desired type",		#ENOMSG
+	[43] = "Identifier removed",			#EIDRM
+	[44] = "Channel number out of range",		#ECHRNG
+	[45] = "Level 2 not synchronized",		#EL2NSYNC
+	[46] = "Level 3 halted",			#EL3HLT
+	[47] = "Level 3 reset",				#EL3RST			
+	[48] = "Link number out of range",		#ELNRNG
+	[49] = "Protocol driver not attached",		#EUNATCH
+	[50] = "No CSI structure available",		#ENOCSI
+	[51] = "Level 2 halted",			#EL2HLT
+	[52] = "Invalid exchange",			#EBADE
+	[53] = "Invalid request descriptor",		#EBADR
+	[54] = "Exchange full",				#EXFULL
+	[55] = "No anode",				#ENOANO
+	[56] = "Invalid request code",			#EBADRQC
+	[57] = "Invalid slot",				#EBADSLT
+
+	[59] = "Bad font file format",			#EBFONT
+	[60] = "Device not a stream",			#ENOSTR
+	[61] = "No data available",			#ENODATA
+	[62] = "Timer expired",				#ETIME
+	[63] = "Out of streams resources",		#ENOSR
+	[64] = "Machine is not on the network",		#ENONET
+	[65] = "Package not installed",			#ENOPKG
+	[66] = "Object is remote",			#EREMOTE
+	[67] = "Link has been severed",			#ENOLINK
+	[68] = "Advertise error",			#EADV
+	[69] = "Srmount error",				#ESRMNT
+	[70] = "Communication error on send",		#ECOMM
+	[71] = "Protocol error",			#EPROTO
+	[72] = "Multihop attempted",			#EMULTIHOP
+	[73] = "RFS specific error",			#EDOTDOT
+	[74] = "Not a data message",			#EBADMSG
+	[75] = "Value too large for defined data type",	#EOVERFLOW
+	[76] = "Name not unique on network",		#ENOTUNIQ
+	[77] = "File descriptor in bad state",		#EBADFD
+	[78] = "Remote address changed",		#EREMCHG
+	[79] = "Can not access a needed shared library", #ELIBACC
+	[80] = "Accessing a corrupted shared library",	#ELIBBAD
+	[81] = ".lib section in a.out corrupted",	#ELIBSCN
+	[82] = "Attempting to link in too many shared libraries", #ELIBMAX
+	[83] = "Cannot exec a shared library directly",	#ELIBEXEC
+	[84] = "Illegal byte sequence",			#EILSEQ
+	[85] = "Interrupted system call should be restarted", #ERESTART
+	[86] = "Streams pipe error",			#ESTRPIPE
+	[87] = "Too many users",			#EUSERS
+	[88] = "Socket operation on non-socket",	#ENOTSOCK
+	[89] = "Destination address required",		#EDESTADDRREQ
+	[90] = "Message too long",			#EMSGSIZE
+	[91] = "Protocol wrong type for socket",	#EPROTOTYPE
+	[92] = "Protocol not available",		#ENOPROTOOPT
+	[93] = "Protocol not supported",		#EPROTONOSUPPORT
+	[94] = "Socket type not supported",		#ESOCKTNOSUPPORT
+	[95] = "Operation not supported on transport endpoint", #EOPNOTSUPP
+	[96] = "Protocol family not supported",		#EPFNOSUPPORT
+	[97] = "Address family not supported by protocol", #EAFNOSUPPORT
+	[98] = "Address already in use",		#EADDRINUSE
+	[99] = "Cannot assign requested address",	#EADDRNOTAVAIL
+	[100] = "Network is down",			#ENETDOWN
+	[101] = "Network is unreachable",		#ENETUNREACH
+	[102] = "Network dropped connection because of reset",	#ENETRESET
+	[103] = "Software caused connection abort",	#ECONNABORTED
+	[104] = "Connection reset by peer",		#ECONNRESET
+	[105] = "No buffer space available",		#ENOBUFS
+	[106] = "Transport endpoint is already connected", #EISCONN
+	[107] = "Transport endpoint is not connected",	#ENOTCONN
+	[108] = " Cannot send after transport endpoint shutdown", #ESHUTDOWN
+	[109] = "Too many references: cannot splice",	#ETOOMANYREFS
+	[110] = "Connection timed out",			#ETIMEDOUT
+	[111] = "Connection refused",			#ECONNREFUSED
+	[112] = "Host is down",				#EHOSTDOWN
+	[113] = "No route to host",			#EHOSTUNREACH
+	[114] = "Operation already in progress",	#EALREADY
+	[115] = "Operation now in progress",		#EINPROGRESS
+	[116] = "Stale NFS file handle",		#ESTALE
+	[117] = "Structure needs cleaning",		#EUCLEAN
+	[118] = "Not a XENIX named type file",		#ENOTNAM
+	[119] = "No XENIX semaphores available",	#ENAVAIL
+	[120] = "Is a named type file",			#EISNAM
+	[121] = "Remote I/O error",			#EREMOTEIO
+	[122] = "Quota exceeded",			#EDQUOT
+	[123] = "No medium found",			#ENOMEDIUM
+	[124] = "Wrong medium type",			#EMEDIUMTYPE
+	[125] = "Operation Canceled",			#ECANCELED
+	[126] = "Required key not available",		#ENOKEY
+	[127] = "Key has expired",			#EKEYEXPIRED
+	[128] = "Key has been revoked",			#EKEYREVOKED
+	[129] = "Key was rejected by service",		#EKEYREJECTED
+	[130] = "Owner died",				#EOWNERDEAD
+	[131] = "State not recoverable",		#ENOTRECOVERABLE
+
+}
+
+trace syscalls:sys_exit_* {
+	if (arg2 < 0) {
+		local errno = -arg2
+		printf("%-15s%-20s\t%d\t%-30s\n",
+			execname(), argname, errno, errdesc[errno])
+	}
+}
diff --git a/drivers/staging/ktap/scripts/syscalls/sctop.kp b/drivers/staging/ktap/scripts/syscalls/sctop.kp
new file mode 100644
index 000000000000..6df45cb98178
--- /dev/null
+++ b/drivers/staging/ktap/scripts/syscalls/sctop.kp
@@ -0,0 +1,14 @@
+#! /usr/bin/env ktap
+
+#this script is broken, fix it soon.
+s = {}
+
+trace syscalls:sys_enter_* {
+	s[argname] += 1
+}
+
+tick-5s {
+	ansi.clear_screen()
+	histogram(s)
+	delete(s)
+}
diff --git a/drivers/staging/ktap/scripts/syscalls/syscalls.kp b/drivers/staging/ktap/scripts/syscalls/syscalls.kp
new file mode 100644
index 000000000000..8bbaacad68ac
--- /dev/null
+++ b/drivers/staging/ktap/scripts/syscalls/syscalls.kp
@@ -0,0 +1,6 @@
+#!/usr/bin/env ktap
+
+trace syscalls:* {
+	print(cpu(), pid(), execname(), argevent)
+}
+
diff --git a/drivers/staging/ktap/scripts/syscalls/syscalls_count.kp b/drivers/staging/ktap/scripts/syscalls/syscalls_count.kp
new file mode 100644
index 000000000000..363c6226e8a9
--- /dev/null
+++ b/drivers/staging/ktap/scripts/syscalls/syscalls_count.kp
@@ -0,0 +1,56 @@
+#!/usr/bin/env ktap
+
+s = aggr_table()
+
+trace syscalls:sys_enter_* {
+	s[argname] = count()
+}
+
+trace_end {
+	histogram(s)
+}
+
+print("Press Control-C to stop.")
+
+#Result:
+#
+#[root@jovi ktap]# ./ktap scripts/syscalls_histogram.kp
+#^C
+#                          value ------------- Distribution ------------- count
+#        sys_enter_rt_sigprocmask |@@@@@@                                 326
+#                  sys_enter_read |@@@@@                                  287
+#                 sys_enter_close |@@@@                                   236
+#                  sys_enter_open |@@@@                                   222
+#                sys_enter_stat64 |@@                                     132
+#                sys_enter_select |@@                                     123
+#          sys_enter_rt_sigaction |@@                                     107
+#                  sys_enter_poll |@                                      72
+#                 sys_enter_write |@                                      70
+#            sys_enter_mmap_pgoff |@                                      58
+#               sys_enter_fstat64 |                                       41
+#             sys_enter_nanosleep |                                       23
+#                sys_enter_access |                                       20
+#              sys_enter_mprotect |                                       18
+#               sys_enter_geteuid |                                       17
+#               sys_enter_getegid |                                       16
+#                sys_enter_getuid |                                       16
+#                sys_enter_getgid |                                       16
+#                   sys_enter_brk |                                       15
+#               sys_enter_waitpid |                                       11
+#                  sys_enter_time |                                       10
+#                 sys_enter_ioctl |                                       9
+#                sys_enter_munmap |                                       9
+#               sys_enter_fcntl64 |                                       7
+#                  sys_enter_dup2 |                                       7
+#                 sys_enter_clone |                                       6
+#            sys_enter_exit_group |                                       6
+#                sys_enter_execve |                                       4
+#                  sys_enter_pipe |                                       3
+#          sys_enter_gettimeofday |                                       3
+#              sys_enter_getdents |                                       2
+#             sys_enter_getgroups |                                       2
+#              sys_enter_statfs64 |                                       2
+#                 sys_enter_lseek |                                       2
+#                sys_enter_openat |                                       1
+#              sys_enter_newuname |                                       1
+
diff --git a/drivers/staging/ktap/scripts/syscalls/syscalls_count_by_proc.kp b/drivers/staging/ktap/scripts/syscalls/syscalls_count_by_proc.kp
new file mode 100644
index 000000000000..7b7d722b893d
--- /dev/null
+++ b/drivers/staging/ktap/scripts/syscalls/syscalls_count_by_proc.kp
@@ -0,0 +1,24 @@
+#!/usr/bin/env ktap
+
+s = aggr_table()
+
+trace syscalls:sys_enter_* {
+	s[execname()] = count()
+}
+
+trace_end {
+	histogram(s)
+}
+
+print("Press Control-C to stop.")
+
+#Result:
+#
+#[root@jovi ktap]# ./ktap scripts/syscalls_histogram2.kp
+#^C
+#                          value ------------- Distribution ------------- count
+#                            sshd |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@      196
+#                          iscsid |@@@@                                   24
+#                        sendmail |@                                      9
+
+
diff --git a/drivers/staging/ktap/scripts/tracepoints/eventcount.kp b/drivers/staging/ktap/scripts/tracepoints/eventcount.kp
new file mode 100644
index 000000000000..9bc357fca56b
--- /dev/null
+++ b/drivers/staging/ktap/scripts/tracepoints/eventcount.kp
@@ -0,0 +1,212 @@
+#!/usr/bin/env ktap
+
+# showing all tracepoints in histogram style
+
+s = {}
+
+trace *:* {
+	s[argname] += 1
+}
+
+trace_end {
+	histogram(s)
+}
+
+print("Press Control-C to stop.")
+
+#Results:
+#^C
+#
+#                          value ------------- Distribution ------------- count
+#                 rcu_utilization |@@@@@                                  225289
+#                        cpu_idle |@@@                                    120168
+#                    sched_wakeup |@@                                     91950
+#                    timer_cancel |@@                                     91232
+#                     timer_start |@@                                     91201
+#                sched_stat_sleep |@@                                     90981
+#               timer_expire_exit |@@                                     90634
+#              timer_expire_entry |@@                                     90625
+#                  hrtimer_cancel |@                                      75411
+#                   hrtimer_start |@                                      74946
+#                   softirq_raise |@                                      63117
+#                    softirq_exit |@                                      63109
+#                   softirq_entry |@                                      63094
+#                    sched_switch |@                                      62331
+#                 sched_stat_wait |@                                      60491
+#             hrtimer_expire_exit |@                                      47538
+#            hrtimer_expire_entry |@                                      47530
+#              sched_stat_runtime |                                       2780
+#                 kmem_cache_free |                                       2684
+#                kmem_cache_alloc |                                       2415
+#                           kfree |                                       2288
+#                        sys_exit |                                       2145
+#                       sys_enter |                                       2145
+#         sys_exit_rt_sigprocmask |                                       1000
+#        sys_enter_rt_sigprocmask |                                       1000
+#                      timer_init |                                       912
+#              sched_stat_blocked |                                       685
+#                         kmalloc |                                       667
+#           workqueue_execute_end |                                       621
+#         workqueue_execute_start |                                       621
+#                sys_enter_select |                                       566
+#                 sys_exit_select |                                       566
+#                  sys_enter_read |                                       526
+#                   sys_exit_read |                                       526
+#                    mm_page_free |                                       478
+#                   mm_page_alloc |                                       427
+#            mm_page_free_batched |                                       382
+#                   net_dev_queue |                                       296
+#                    net_dev_xmit |                                       296
+#                     consume_skb |                                       296
+#                  sys_exit_write |                                       290
+#                 sys_enter_write |                                       290
+#                       kfree_skb |                                       289
+#           kmem_cache_alloc_node |                                       269
+#                    kmalloc_node |                                       263
+#                 sys_enter_close |                                       249
+#                  sys_exit_close |                                       249
+#                    hrtimer_init |                                       248
+#               netif_receive_skb |                                       242
+#                  sys_enter_open |                                       237
+#                   sys_exit_open |                                       237
+#                       napi_poll |                                       226
+#              sched_migrate_task |                                       207
+#                   sys_exit_poll |                                       173
+#                  sys_enter_poll |                                       173
+#            workqueue_queue_work |                                       152
+#         workqueue_activate_work |                                       152
+#                sys_enter_stat64 |                                       133
+#                 sys_exit_stat64 |                                       133
+#           sys_exit_rt_sigaction |                                       133
+#          sys_enter_rt_sigaction |                                       133
+#               irq_handler_entry |                                       125
+#                irq_handler_exit |                                       125
+#       mm_page_alloc_zone_locked |                                       99
+#             sys_exit_mmap_pgoff |                                       66
+#            sys_enter_mmap_pgoff |                                       66
+#                sys_exit_fstat64 |                                       54
+#               sys_enter_fstat64 |                                       54
+#             sys_enter_nanosleep |                                       51
+#              sys_exit_nanosleep |                                       51
+#                 block_bio_queue |                                       46
+#                 block_bio_remap |                                       46
+#              block_bio_complete |                                       46
+#                  mix_pool_bytes |                                       44
+#              mm_page_pcpu_drain |                                       31
+#                   sys_exit_time |                                       23
+#                  sys_enter_time |                                       23
+#                 sys_exit_access |                                       20
+#                sys_enter_access |                                       20
+#           mix_pool_bytes_nolock |                                       18
+#              sys_enter_mprotect |                                       18
+#               sys_exit_mprotect |                                       18
+#               sys_enter_geteuid |                                       17
+#                sys_exit_geteuid |                                       17
+#                sys_enter_munmap |                                       17
+#                 sys_exit_munmap |                                       17
+#                     block_getrq |                                       16
+#                sys_enter_getuid |                                       16
+#                sys_enter_getgid |                                       16
+#                 sys_exit_getgid |                                       16
+#                 sys_exit_getuid |                                       16
+#                  block_rq_issue |                                       16
+#         scsi_dispatch_cmd_start |                                       16
+#               block_rq_complete |                                       16
+#          scsi_dispatch_cmd_done |                                       16
+#               sys_enter_getegid |                                       16
+#                sys_exit_getegid |                                       16
+#                 block_rq_insert |                                       16
+#         skb_copy_datagram_iovec |                                       15
+#                   sys_enter_brk |                                       15
+#                    sys_exit_brk |                                       15
+#             credit_entropy_bits |                                       14
+#                   wbc_writepage |                                       14
+#                  sys_exit_clone |                                       12
+#              block_touch_buffer |                                       12
+#              sched_process_wait |                                       11
+#               sys_enter_waitpid |                                       11
+#                sys_exit_waitpid |                                       11
+#               writeback_written |                                       10
+#                 writeback_start |                                       10
+#              writeback_queue_io |                                       10
+#     ext4_es_lookup_extent_enter |                                       9
+#                 sys_enter_ioctl |                                       9
+#                  sys_exit_ioctl |                                       9
+#       ext4_ext_map_blocks_enter |                                       9
+#        ext4_ext_map_blocks_exit |                                       9
+#      ext4_es_lookup_extent_exit |                                       9
+#           ext4_es_insert_extent |                                       9
+#            ext4_ext_show_extent |                                       8
+#                 extract_entropy |                                       8
+#ext4_es_find_delayed_extent_exit |                                       8
+# ext4_es_find_delayed_extent_... |                                       8
+#         writeback_pages_written |                                       7
+#                   sys_exit_dup2 |                                       7
+#                  sys_enter_dup2 |                                       7
+#                 signal_generate |                                       7
+#               sys_enter_fcntl64 |                                       7
+#                sys_exit_fcntl64 |                                       7
+#              global_dirty_state |                                       7
+#     writeback_dirty_inode_start |                                       7
+#             block_bio_backmerge |                                       7
+#           writeback_dirty_inode |                                       7
+#                sched_wakeup_new |                                       6
+#              sched_process_free |                                       6
+#            sys_enter_exit_group |                                       6
+#                    task_newtask |                                       6
+#                 sys_enter_clone |                                       6
+#              sched_process_fork |                                       6
+#              sched_process_exit |                                       6
+#           sys_exit_gettimeofday |                                       5
+#                  signal_deliver |                                       5
+#          sys_enter_gettimeofday |                                       5
+#          writeback_single_inode |                                       4
+#                sys_enter_execve |                                       4
+#                     task_rename |                                       4
+#              sched_process_exec |                                       4
+#              block_dirty_buffer |                                       4
+#                 sys_exit_execve |                                       4
+#                    block_unplug |                                       4
+#               sched_stat_iowait |                                       4
+#    writeback_single_inode_start |                                       4
+#                      block_plug |                                       4
+#           writeback_write_inode |                                       3
+#                  sys_enter_pipe |                                       3
+#            writeback_dirty_page |                                       3
+#     writeback_write_inode_start |                                       3
+#           ext4_mark_inode_dirty |                                       3
+#              ext4_journal_start |                                       3
+#                   sys_exit_pipe |                                       3
+#           jbd2_drop_transaction |                                       2
+#             jbd2_commit_locking |                                       2
+#            jbd2_commit_flushing |                                       2
+#               jbd2_handle_start |                                       2
+#                  jbd2_run_stats |                                       2
+#               sys_exit_getdents |                                       2
+#           jbd2_checkpoint_stats |                                       2
+#             sys_enter_getgroups |                                       2
+#               jbd2_start_commit |                                       2
+#                 jbd2_end_commit |                                       2
+#              ext4_da_writepages |                                       2
+#               jbd2_handle_stats |                                       2
+#              sys_enter_statfs64 |                                       2
+#               sys_exit_statfs64 |                                       2
+#              sys_exit_getgroups |                                       2
+#                  sys_exit_lseek |                                       2
+#                 sys_enter_lseek |                                       2
+#              sys_enter_getdents |                                       2
+#             ext4_da_write_pages |                                       2
+#             jbd2_commit_logging |                                       2
+#             ext4_request_blocks |                                       1
+#                 sys_exit_openat |                                       1
+#     ext4_discard_preallocations |                                       1
+#              ext4_mballoc_alloc |                                       1
+#                sys_enter_openat |                                       1
+#       ext4_da_writepages_result |                                       1
+#            ext4_allocate_blocks |                                       1
+#              sys_enter_newuname |                                       1
+#    ext4_da_update_reserve_space |                                       1
+# ext4_get_reserved_cluster_alloc |                                       1
+#               sys_exit_newuname |                                       1
+#           writeback_wake_thread |                                       1
+
diff --git a/drivers/staging/ktap/scripts/tracepoints/eventcount_by_proc.kp b/drivers/staging/ktap/scripts/tracepoints/eventcount_by_proc.kp
new file mode 100644
index 000000000000..8706f73d5b40
--- /dev/null
+++ b/drivers/staging/ktap/scripts/tracepoints/eventcount_by_proc.kp
@@ -0,0 +1,59 @@
+#!/usr/bin/env ktap
+
+# showing all tracepoints in histogram style
+
+s = aggr_table()
+
+trace *:* {
+	s[execname()] = count()
+}
+
+trace_end {
+	histogram(s)
+}
+
+print("Press Control-C to stop.")
+
+#Results:
+#^C
+#                          value ------------- Distribution ------------- count
+#                       swapper/0 |@@@@@@@@@@@@                           354378
+#                       swapper/1 |@@@@@@@@@@                             284984
+#                              ps |@@@@                                   115697
+#                        ksmtuned |@@@                                    95857
+#                          iscsid |@@                                     80008
+#                             awk |@                                      30354
+#                      irqbalance |                                       16530
+#                       rcu_sched |                                       15892
+#                        sendmail |                                       14463
+#                     kworker/0:1 |                                       10540
+#                    kworker/u4:2 |                                       9250
+#                     kworker/1:2 |                                       7943
+#                           sleep |                                       7555
+#                           crond |                                       3911
+#                     ksoftirqd/0 |                                       3817
+#                            sshd |                                       2849
+#                 systemd-journal |                                       2209
+#                     migration/1 |                                       1601
+#                     migration/0 |                                       1350
+#                        dhclient |                                       1343
+#                 nm-dhcp-client. |                                       1208
+#                     ksoftirqd/1 |                                       1064
+#                      watchdog/1 |                                       966
+#                      watchdog/0 |                                       964
+#                      khugepaged |                                       776
+#                     dbus-daemon |                                       611
+#                         rpcbind |                                       607
+#                           gdbus |                                       529
+#                  NetworkManager |                                       399
+#                     jbd2/dm-1-8 |                                       378
+#                   modem-manager |                                       184
+#                  abrt-watch-log |                                       157
+#                         polkitd |                                       156
+#                   rs:main Q:Reg |                                       153
+#                    avahi-daemon |                                       151
+#                        rsyslogd |                                       102
+#                         systemd |                                       96
+#                    kworker/0:1H |                                       45
+#                          smartd |                                       30
+
diff --git a/drivers/staging/ktap/scripts/tracepoints/tracepoints.kp b/drivers/staging/ktap/scripts/tracepoints/tracepoints.kp
new file mode 100644
index 000000000000..5d088695bbf2
--- /dev/null
+++ b/drivers/staging/ktap/scripts/tracepoints/tracepoints.kp
@@ -0,0 +1,6 @@
+#!/usr/bin/env ktap
+
+trace *:* {
+	print(cpu(), pid(), execname(), argevent)
+}
+
diff --git a/drivers/staging/ktap/scripts/userspace/uprobes-malloc.kp b/drivers/staging/ktap/scripts/userspace/uprobes-malloc.kp
new file mode 100644
index 000000000000..14c172f8f327
--- /dev/null
+++ b/drivers/staging/ktap/scripts/userspace/uprobes-malloc.kp
@@ -0,0 +1,9 @@
+#!/usr/bin/env ktap
+
+trace probe:/lib/libc.so.6:0x000773c0 {
+	print("entry:", execname(), argevent)
+}
+
+trace probe:/lib/libc.so.6:0x000773c0%return {
+	print("exit:", execname(), argevent)
+}
diff --git a/drivers/staging/ktap/test/aggr_table.kp b/drivers/staging/ktap/test/aggr_table.kp
new file mode 100644
index 000000000000..985b634952c1
--- /dev/null
+++ b/drivers/staging/ktap/test/aggr_table.kp
@@ -0,0 +1,50 @@
+#!/usr/bin/env ktap
+
+function failed() {
+	printf("failed\n");
+	exit(-1);
+}
+
+#---------------------------------#
+
+s = aggr_table()
+
+s["count"] = count()
+s["count"] = count()
+s["count"] = count()
+
+s["max"] = max(1)
+s["max"] = max(0)
+s["max"] = max(100)
+
+s["min"] = min(50)
+s["min"] = min(2)
+s["min"] = min(100)
+
+s["sum"] = sum(10)
+s["sum"] = sum(20)
+s["sum"] = sum(30)
+
+s["avg"] = avg(10)
+s["avg"] = avg(20)
+s["avg"] = avg(30)
+
+if (s["count"] != 3) {
+	failed()
+}
+
+if (s["max"] != 100) {
+	failed()
+}
+
+if (s["min"] != 2) {
+	failed()
+}
+
+if (s["sum"] != 60) {
+	failed()
+}
+
+if (s["avg"] != 20) {
+	failed()
+}
diff --git a/drivers/staging/ktap/test/ansi.kp b/drivers/staging/ktap/test/ansi.kp
new file mode 100644
index 000000000000..e8a27835ce75
--- /dev/null
+++ b/drivers/staging/ktap/test/ansi.kp
@@ -0,0 +1,20 @@
+#!/usr/bin/env ktap
+
+ansi.clear_screen()
+
+ansi.set_color(32)
+printf("this line should be Green color\n")
+
+ansi.set_color(31)
+printf("this line should be Red color\n")
+
+ansi.set_color2(34, 43)
+printf("this line should be Blue color, with Yellow background\n")
+
+ansi.reset_color()
+ansi.set_color3(34, 46, 4)
+printf("this line should be Blue color, with Cyan background, underline single attribute\n")
+
+ansi.reset_color()
+ansi.new_line()
+
diff --git a/drivers/staging/ktap/test/arg.kp b/drivers/staging/ktap/test/arg.kp
new file mode 100644
index 000000000000..0cf16ebf3227
--- /dev/null
+++ b/drivers/staging/ktap/test/arg.kp
@@ -0,0 +1,24 @@
+#!/usr/bin/env ktap
+
+function failed() {
+	printf("failed\n");
+	exit(-1);
+}
+
+#-----------------------------------------#
+
+if (!arg[0]) {
+	failed()
+}
+
+if (arg[1] != 1) {
+	failed()
+}
+
+if (arg[2] != "testing") {
+	failed()
+}
+
+if (arg[3] != "2 3 4") {
+	failed()
+}
diff --git a/drivers/staging/ktap/test/arith.kp b/drivers/staging/ktap/test/arith.kp
new file mode 100644
index 000000000000..32880a140c69
--- /dev/null
+++ b/drivers/staging/ktap/test/arith.kp
@@ -0,0 +1,27 @@
+#!/usr/bin/env ktap
+
+function failed() {
+	printf("failed\n");
+	exit(-1);
+}
+
+#-----------------------------------------#
+
+a = 4
+b = 5
+
+if ((a + b) != 9) {
+	failed()
+}
+
+if ((a - b) != -1) {
+	failed()
+}
+
+if ((a % b) != 4) {
+	failed()
+}
+
+if ((a / b) != 0) {
+	failed()
+}
diff --git a/drivers/staging/ktap/test/bench/sembench.c b/drivers/staging/ktap/test/bench/sembench.c
new file mode 100644
index 000000000000..08119341c91d
--- /dev/null
+++ b/drivers/staging/ktap/test/bench/sembench.c
@@ -0,0 +1,556 @@
+/*
+ * copyright Oracle 2007.  Licensed under GPLv2
+ * To compile: gcc -Wall -o sembench sembench.c -lpthread
+ *
+ * usage: sembench -t thread count -w wakenum -r runtime -o op
+ * op can be: 0 (ipc sem) 1 (nanosleep) 2 (futexes)
+ *
+ * example:
+ *	sembench -t 1024 -w 512 -r 60 -o 2
+ * runs 1024 threads, waking up 512 at a time, running for 60 seconds using
+ * futex locking.
+ *
+ */
+#define  _GNU_SOURCE
+#define _POSIX_C_SOURCE 199309
+#include <fcntl.h>
+#include <sched.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/sem.h>
+#include <sys/ipc.h>
+#include <sys/types.h>
+#include <sys/mman.h>
+#include <pthread.h>
+#include <unistd.h>
+#include <string.h>
+#include <time.h>
+#include <sys/time.h>
+#include <sys/syscall.h>
+#include <errno.h>
+
+#define VERSION "0.2"
+
+/* futexes have been around since 2.5.something, but it still seems I
+ * need to make my own syscall.  Sigh.
+ */
+#define FUTEX_WAIT              0
+#define FUTEX_WAKE              1
+#define FUTEX_FD                2
+#define FUTEX_REQUEUE           3
+#define FUTEX_CMP_REQUEUE       4
+#define FUTEX_WAKE_OP           5
+static inline int futex (int *uaddr, int op, int val,
+			 const struct timespec *timeout,
+			 int *uaddr2, int val3)
+{
+	return syscall(__NR_futex, uaddr, op, val, timeout, uaddr2, val3);
+}
+
+static void smp_mb(void)
+{
+	__sync_synchronize();
+}
+
+static int all_done = 0;
+static int timeout_test = 0;
+
+#define SEMS_PERID 250
+
+struct sem_operations;
+
+struct lockinfo {
+	unsigned long id;
+	unsigned long index;
+	int data;
+	pthread_t tid;
+	struct lockinfo *next;
+	struct sem_operations *ops;
+	unsigned long ready;
+};
+
+struct sem_wakeup_info {
+	int wakeup_count;
+	struct sembuf sb[SEMS_PERID];
+};
+
+struct sem_operations {
+	void (*wait)(struct lockinfo *l);
+	int (*wake)(struct sem_wakeup_info *wi, int num_semids, int num);
+	void (*setup)(struct sem_wakeup_info **wi, int num_semids);
+	void (*cleanup)(int num_semids);
+	char *name;
+};
+
+int *semid_lookup = NULL;
+
+pthread_mutex_t worklist_mutex = PTHREAD_MUTEX_INITIALIZER;
+static unsigned long total_burns = 0;
+static unsigned long min_burns = ~0UL;
+static unsigned long max_burns = 0;
+
+/* currently running threads */
+static int thread_count = 0;
+
+struct lockinfo *worklist = NULL;
+static int workers_started = 0;
+
+/* total threads started */
+static int num_threads = 2048;
+
+static void worklist_add(struct lockinfo *l)
+{
+	smp_mb();
+	l->ready = 1;
+}
+
+static struct lockinfo *worklist_rm(void)
+{
+	static int last_index = 0;
+	int i;
+	struct lockinfo *l;
+
+	for (i = 0; i < num_threads; i++) {
+		int test = (last_index + i) % num_threads;
+
+		l = worklist + test;
+		smp_mb();
+		if (l->ready) {
+			l->ready = 0;
+			last_index = test;
+			return l;
+		}
+	}
+	return NULL;
+}
+
+/* ipc semaphore post& wait */
+void wait_ipc_sem(struct lockinfo *l)
+{
+	struct sembuf sb;
+	int ret;
+	struct timespec *tvp = NULL;
+	struct timespec tv = { 0, 1 };
+
+	sb.sem_num = l->index;
+	sb.sem_flg = 0;
+
+	sb.sem_op = -1;
+	l->data = 1;
+
+	if (timeout_test && (l->id % 5) == 0)
+		tvp = &tv;
+
+	worklist_add(l);
+	ret = semtimedop(semid_lookup[l->id], &sb, 1, tvp);
+
+	while(l->data != 0 && tvp) {
+		struct timespec tv2 = { 0, 500 };
+		nanosleep(&tv2, NULL);
+	}
+
+	if (l->data != 0) {
+		if (tvp)
+			return;
+		fprintf(stderr, "wakeup without data update\n");
+		exit(1);
+	}
+	if (ret) {
+		if (errno == EAGAIN && tvp)
+			return;
+		perror("semtimed op");
+		exit(1);
+	}
+}
+
+int ipc_wake_some(struct sem_wakeup_info *wi, int num_semids, int num)
+{
+	int i;
+	int ret;
+	struct lockinfo *l;
+	int found = 0;
+
+	for (i = 0; i < num_semids; i++) {
+		wi[i].wakeup_count = 0;
+	}
+	while(num > 0) {
+		struct sembuf *sb;
+		l = worklist_rm();
+		if (!l)
+			break;
+		if (l->data != 1)
+			fprintf(stderr, "warning, lockinfo data was %d\n",
+				l->data);
+		l->data = 0;
+		sb = wi[l->id].sb + wi[l->id].wakeup_count;
+		sb->sem_num = l->index;
+		sb->sem_op = 1;
+		sb->sem_flg = IPC_NOWAIT;
+		wi[l->id].wakeup_count++;
+		found++;
+		num--;
+	}
+	if (!found)
+		return 0;
+	for (i = 0; i < num_semids; i++) {
+		int wakeup_total;
+		int cur;
+		int offset = 0;
+		if (!wi[i].wakeup_count)
+			continue;
+		wakeup_total = wi[i].wakeup_count;
+		while(wakeup_total > 0) {
+			cur = wakeup_total > 64 ? 64 : wakeup_total;
+			ret = semtimedop(semid_lookup[i], wi[i].sb + offset,
+					 cur, NULL);
+			if (ret) {
+				perror("semtimedop");
+				exit(1);
+			}
+			offset += cur;
+			wakeup_total -= cur;
+		}
+	}
+	return found;
+}
+
+void setup_ipc_sems(struct sem_wakeup_info **wi, int num_semids)
+{
+	int i;
+	*wi = malloc(sizeof(**wi) * num_semids);
+	semid_lookup = malloc(num_semids * sizeof(int));
+	for(i = 0; i < num_semids; i++) {
+		semid_lookup[i] = semget(IPC_PRIVATE, SEMS_PERID,
+					 IPC_CREAT | 0777);
+		if (semid_lookup[i] < 0) {
+			perror("semget");
+			exit(1);
+		}
+	}
+	sleep(10);
+}
+
+void cleanup_ipc_sems(int num)
+{
+	int i;
+	for (i = 0; i < num; i++) {
+		semctl(semid_lookup[i], 0, IPC_RMID);
+	}
+}
+
+struct sem_operations ipc_sem_ops = {
+	.wait = wait_ipc_sem,
+	.wake = ipc_wake_some,
+	.setup = setup_ipc_sems,
+	.cleanup = cleanup_ipc_sems,
+	.name = "ipc sem operations",
+};
+
+/* futex post & wait */
+void wait_futex_sem(struct lockinfo *l)
+{
+	int ret;
+	l->data = 1;
+	worklist_add(l);
+	while(l->data == 1) {
+		ret = futex(&l->data, FUTEX_WAIT, 1, NULL, NULL, 0);
+		/*
+		if (ret && ret != EWOULDBLOCK) {
+			perror("futex wait");
+			exit(1);
+		}*/
+	}
+}
+
+int futex_wake_some(struct sem_wakeup_info *wi, int num_semids, int num)
+{
+	int i;
+	int ret;
+	struct lockinfo *l;
+	int found = 0;
+
+	for (i = 0; i < num; i++) {
+		l = worklist_rm();
+		if (!l)
+			break;
+		if (l->data != 1)
+			fprintf(stderr, "warning, lockinfo data was %d\n",
+				l->data);
+		l->data = 0;
+		ret = futex(&l->data, FUTEX_WAKE, 1, NULL, NULL, 0);
+		if (ret < 0) {
+			perror("futex wake");
+			exit(1);
+		}
+		found++;
+	}
+	return found;
+}
+
+void setup_futex_sems(struct sem_wakeup_info **wi, int num_semids)
+{
+	return;
+}
+
+void cleanup_futex_sems(int num)
+{
+	return;
+}
+
+struct sem_operations futex_sem_ops = {
+	.wait = wait_futex_sem,
+	.wake = futex_wake_some,
+	.setup = setup_futex_sems,
+	.cleanup = cleanup_futex_sems,
+	.name = "futex sem operations",
+};
+
+/* nanosleep sems here */
+void wait_nanosleep_sem(struct lockinfo *l)
+{
+	int ret;
+	struct timespec tv = { 0, 1000000 };
+	int count = 0;
+
+	l->data = 1;
+	worklist_add(l);
+	while(l->data) {
+		ret = nanosleep(&tv, NULL);
+		if (ret) {
+			perror("nanosleep");
+			exit(1);
+		}
+		count++;
+	}
+}
+
+int nanosleep_wake_some(struct sem_wakeup_info *wi, int num_semids, int num)
+{
+	int i;
+	struct lockinfo *l;
+
+	for (i = 0; i < num; i++) {
+		l = worklist_rm();
+		if (!l)
+			break;
+		if (l->data != 1)
+			fprintf(stderr, "warning, lockinfo data was %d\n",
+				l->data);
+		l->data = 0;
+	}
+	return i;
+}
+
+void setup_nanosleep_sems(struct sem_wakeup_info **wi, int num_semids)
+{
+	return;
+}
+
+void cleanup_nanosleep_sems(int num)
+{
+	return;
+}
+
+struct sem_operations nanosleep_sem_ops = {
+	.wait = wait_nanosleep_sem,
+	.wake = nanosleep_wake_some,
+	.setup = setup_nanosleep_sems,
+	.cleanup = cleanup_nanosleep_sems,
+	.name = "nano sleep sem operations",
+};
+
+void *worker(void *arg)
+{
+	struct lockinfo *l = (struct lockinfo *)arg;
+	int burn_count = 0;
+	pthread_t tid = pthread_self();
+	size_t pagesize = getpagesize();
+	char *buf = malloc(pagesize);
+
+	if (!buf) {
+		perror("malloc");
+		exit(1);
+	}
+
+	l->tid = tid;
+	workers_started = 1;
+	smp_mb();
+
+	while(!all_done) {
+		l->ops->wait(l);
+		if (all_done)
+			break;
+		burn_count++;
+	}
+	pthread_mutex_lock(&worklist_mutex);
+	total_burns += burn_count;
+	if (burn_count < min_burns)
+		min_burns = burn_count;
+	if (burn_count > max_burns)
+		max_burns = burn_count;
+	thread_count--;
+	pthread_mutex_unlock(&worklist_mutex);
+	return (void *)0;
+}
+
+void print_usage(void)
+{
+	printf("usage: sembench [-t threads] [-w wake incr] [-r runtime]");
+	printf("                [-o num] (0=ipc, 1=nanosleep, 2=futex)\n");
+	exit(1);
+}
+
+#define NUM_OPERATIONS 3
+struct sem_operations *allops[NUM_OPERATIONS] = { &ipc_sem_ops,
+						&nanosleep_sem_ops,
+						&futex_sem_ops};
+
+int main(int ac, char **av) {
+	int ret;
+	int i;
+	int semid = 0;
+	int sem_num = 0;
+	int burn_count = 0;
+	struct sem_wakeup_info *wi = NULL;
+	struct timeval start;
+	struct timeval now;
+	int num_semids = 0;
+	int wake_num = 256;
+	int run_secs = 30;
+	int pagesize = getpagesize();
+	char *buf = malloc(pagesize);
+	struct sem_operations *ops = allops[0];
+	cpu_set_t cpu_mask;
+	cpu_set_t target_mask;
+	int target_cpu = 0;
+	int max_cpu = -1;
+
+	if (!buf) {
+		perror("malloc");
+		exit(1);
+	}
+	for (i = 1; i < ac; i++) {
+		if (strcmp(av[i], "-t") == 0) {
+			if (i == ac -1)
+				print_usage();
+			num_threads = atoi(av[i+1]);
+			i++;
+		} else if (strcmp(av[i], "-w") == 0) {
+			if (i == ac -1)
+				print_usage();
+			wake_num = atoi(av[i+1]);
+			i++;
+		} else if (strcmp(av[i], "-r") == 0) {
+			if (i == ac -1)
+				print_usage();
+			run_secs = atoi(av[i+1]);
+			i++;
+		} else if (strcmp(av[i], "-o") == 0) {
+			int index;
+			if (i == ac -1)
+				print_usage();
+			index = atoi(av[i+1]);
+			if (index >= NUM_OPERATIONS) {
+				fprintf(stderr, "invalid operations %d\n",
+					index);
+				exit(1);
+			}
+			ops = allops[index];
+			i++;
+		} else if (strcmp(av[i], "-T") == 0) {
+			timeout_test = 1;
+		} else if (strcmp(av[i], "-h") == 0) {
+			print_usage();
+		}
+	}
+	num_semids = (num_threads + SEMS_PERID - 1) / SEMS_PERID;
+	ops->setup(&wi, num_semids);
+
+	ret = sched_getaffinity(0, sizeof(cpu_set_t), &cpu_mask);
+	if (ret) {
+		perror("sched_getaffinity");
+		exit(1);
+	}
+	for (i = 0; i < CPU_SETSIZE; i++)
+		if (CPU_ISSET(i, &cpu_mask))
+			max_cpu = i;
+	if (max_cpu == -1) {
+		fprintf(stderr, "sched_getaffinity returned empty mask\n");
+		exit(1);
+	}
+
+	CPU_ZERO(&target_mask);
+
+	worklist = malloc(sizeof(*worklist) * num_threads);
+	memset(worklist, 0, sizeof(*worklist) * num_threads);
+
+	for (i = 0; i < num_threads; i++) {
+		struct lockinfo *l;
+		pthread_t tid;
+		thread_count++;
+		l = worklist + i;
+		if (!l) {
+			perror("malloc");
+			exit(1);
+		}
+		l->id = semid;
+		l->index = sem_num++;
+		l->ops = ops;
+		if (sem_num >= SEMS_PERID) {
+			semid++;
+			sem_num = 0;
+		}
+		ret = pthread_create(&tid, NULL, worker, (void *)l);
+		if (ret) {
+			perror("pthread_create");
+			exit(1);
+		}
+
+		while (!CPU_ISSET(target_cpu, &cpu_mask)) {
+			target_cpu++;
+			if (target_cpu > max_cpu)
+				target_cpu = 0;
+		}
+		CPU_SET(target_cpu, &target_mask);
+		ret = pthread_setaffinity_np(tid, sizeof(cpu_set_t),
+					     &target_mask);
+		CPU_CLR(target_cpu, &target_mask);
+		target_cpu++;
+
+		ret = pthread_detach(tid);
+		if (ret) {
+			perror("pthread_detach");
+			exit(1);
+		}
+	}
+	while(!workers_started) {
+		smp_mb();
+		usleep(200);
+	}
+	gettimeofday(&start, NULL);
+	fprintf(stderr, "main loop going\n");
+	while(1) {
+		ops->wake(wi, num_semids, wake_num);
+		burn_count++;
+		gettimeofday(&now, NULL);
+		if (now.tv_sec - start.tv_sec >= run_secs)
+			break;
+	}
+	fprintf(stderr, "all done\n");
+	all_done = 1;
+	while(thread_count > 0) {
+		ops->wake(wi, num_semids, wake_num);
+		usleep(200);
+	}
+	printf("%d threads, waking %d at a time\n", num_threads, wake_num);
+	printf("using %s\n", ops->name);
+	printf("main thread burns: %d\n", burn_count);
+	printf("worker burn count total %lu min %lu max %lu avg %lu\n",
+	       total_burns, min_burns, max_burns, total_burns / num_threads);
+	printf("run time %d seconds %lu worker burns per second\n",
+		(int)(now.tv_sec - start.tv_sec),
+		total_burns / (now.tv_sec - start.tv_sec));
+	ops->cleanup(num_semids);
+	return 0;
+}
+
diff --git a/drivers/staging/ktap/test/bench/test.sh b/drivers/staging/ktap/test/bench/test.sh
new file mode 100644
index 000000000000..9f77969b6f2b
--- /dev/null
+++ b/drivers/staging/ktap/test/bench/test.sh
@@ -0,0 +1,25 @@
+#!/bin/sh
+
+gcc -o sembench sembench.c -O2 -lpthread
+
+COMMAND="./sembench -t 200 -w 20 -r 30 -o 2"
+
+echo -e "\n\t\tPass 1 without tracing"
+$COMMAND
+echo -e "\n\t\tPass 2 without tracing"
+$COMMAND
+echo -e "\n\t\tPass 3 without tracing"
+$COMMAND
+
+echo ""
+
+KTAP_ONE_LINER="trace syscalls:sys_*_futex {}"
+
+echo -e "\n\t\tPass 1 with tracing"
+../../ktap -e "$KTAP_ONE_LINER" -- $COMMAND
+echo -e "\n\t\tPass 2 with tracing"
+../../ktap -e "$KTAP_ONE_LINER" -- $COMMAND
+echo -e "\n\t\tPass 3 with tracing"
+../../ktap -e "$KTAP_ONE_LINER" -- $COMMAND
+
+rm -rf ./sembench
diff --git a/drivers/staging/ktap/test/concat.kp b/drivers/staging/ktap/test/concat.kp
new file mode 100644
index 000000000000..be77bb70ea8e
--- /dev/null
+++ b/drivers/staging/ktap/test/concat.kp
@@ -0,0 +1,15 @@
+#!/usr/bin/env ktap
+
+function failed() {
+	printf("failed\n");
+	exit(-1);
+}
+
+#----------------------------------------#
+
+a = "123"
+b = "456"
+
+if (a..b != "123456") {
+	failed()
+}
diff --git a/drivers/staging/ktap/test/count.kp b/drivers/staging/ktap/test/count.kp
new file mode 100644
index 000000000000..26f962c227a4
--- /dev/null
+++ b/drivers/staging/ktap/test/count.kp
@@ -0,0 +1,20 @@
+#!/usr/bin/env ktap
+
+function failed() {
+	printf("failed\n");
+	exit(-1);
+}
+
+#---------------------------------------#
+
+t = {}
+
+t["key"] += 1
+if (t["key"] != 1) {
+	failed()
+}
+
+t["key"] += 1
+if (t["key"] != 2) {
+	failed()
+}
diff --git a/drivers/staging/ktap/test/fibonacci.kp b/drivers/staging/ktap/test/fibonacci.kp
new file mode 100644
index 000000000000..7e141da0de42
--- /dev/null
+++ b/drivers/staging/ktap/test/fibonacci.kp
@@ -0,0 +1,36 @@
+#!/usr/bin/env ktap
+
+function failed() {
+	printf("failed\n");
+	exit(-1);
+}
+
+#---------------fibonacci----------------
+
+
+#regular recursive fibonacci
+function fib(n) {
+	if (n < 2) {
+		return n
+	}
+	return fib(n-1) + fib(n-2)
+}
+
+if (fib(20) != 6765) {
+	failed()
+}
+
+#tail recursive fibonacci
+function fib(n) {
+	f = function (iter, res, next) {
+		if (iter == 0) {
+			return res;
+		}
+		return f(iter-1, next, res+next)
+	}
+	return f(n, 0, 1)
+}
+
+if (fib(20) != 6765) {
+	failed()
+}
diff --git a/drivers/staging/ktap/test/function.kp b/drivers/staging/ktap/test/function.kp
new file mode 100644
index 000000000000..bfbff2614104
--- /dev/null
+++ b/drivers/staging/ktap/test/function.kp
@@ -0,0 +1,88 @@
+#!/usr/bin/env ktap
+
+function failed() {
+	printf("failed\n");
+	exit(-1);
+}
+
+### basic function call ###
+function f1(a, b) {
+	return a + b
+}
+
+if (f1(2, 3) != 5) {
+	failed();
+}
+
+### return string ###
+function f2() {
+	return "function return"
+}
+
+if (f2() != "function return") {
+	failed();
+}
+
+### mutli-value return ###
+function f3(a, b) {
+	return a+b, a-b;
+}
+
+c, d = f3(2, 3);
+if(c != 5 || d != -1) {
+	failed();
+}
+
+
+### closure testing ### 
+function f4() {
+	f5 = function(a, b) {
+		return a * b
+	}
+	return f5
+}
+
+local f = f4()
+if (f(9, 9) != 81) {
+	failed();
+}
+
+### closure with lexcial variable ### 
+# issue: variable cannot be local
+i = 1
+function f6() {
+	i = 5
+	f7 = function(a, b) {
+		return a * b + i
+	}
+	return f7
+}
+
+f = f6()
+if (f(9, 9) != 81 + i) {
+	failed();
+}
+
+i = 6
+if (f(9, 9) != 81 + i) {
+	failed();
+}
+
+### tail call
+### stack should not overflow in tail call mechanism
+a = 0
+function f8(i) {
+	if (i == 1000000) {
+		a = 1000000
+		return
+	}
+	# must add return here, otherwise stack overflow
+	return f8(i+1)
+}
+
+f8(0)
+if (a != 1000000) {
+	failed();
+}
+
+
diff --git a/drivers/staging/ktap/test/if.kp b/drivers/staging/ktap/test/if.kp
new file mode 100644
index 000000000000..3122084af5ee
--- /dev/null
+++ b/drivers/staging/ktap/test/if.kp
@@ -0,0 +1,24 @@
+#!/usr/bin/env ktap
+
+function failed() {
+	printf("failed\n");
+	exit(-1);
+}
+
+#-----------------------------------------#
+
+if (false) {
+	failed()
+}
+
+if (nil) {
+	failed()
+}
+
+# ktap only think false and nil is "real false", number 0 is true
+# it's same as lua
+# Might change it in future, to make similar with C
+if (0) {
+	#failed()
+}
+
diff --git a/drivers/staging/ktap/test/kprobe.kp b/drivers/staging/ktap/test/kprobe.kp
new file mode 100644
index 000000000000..022d4a70b31f
--- /dev/null
+++ b/drivers/staging/ktap/test/kprobe.kp
@@ -0,0 +1,14 @@
+#!/usr/bin/env ktap
+
+n = 0
+trace probe:schedule {
+	n = n + 1
+}
+
+tick-1s {
+	if (n == 0) {
+		printf("failed\n");
+	}
+	exit()
+}
+
diff --git a/drivers/staging/ktap/test/kretprobe.kp b/drivers/staging/ktap/test/kretprobe.kp
new file mode 100644
index 000000000000..e311e84c292f
--- /dev/null
+++ b/drivers/staging/ktap/test/kretprobe.kp
@@ -0,0 +1,14 @@
+#!/usr/bin/env ktap
+
+n = 0
+trace probe:__schedule%return {
+	n = n + 1
+}
+
+tick-1s {
+	if (n == 0) {
+		printf("failed\n");
+	}
+	exit()
+}
+
diff --git a/drivers/staging/ktap/test/len.kp b/drivers/staging/ktap/test/len.kp
new file mode 100644
index 000000000000..697d91553ba9
--- /dev/null
+++ b/drivers/staging/ktap/test/len.kp
@@ -0,0 +1,25 @@
+#!/usr/bin/env ktap
+
+function failed() {
+	printf("failed\n");
+	exit(-1);
+}
+
+#-----------------------------------------#
+
+a = "123456789"
+
+if (len(a) != 9) {
+	failed()
+}
+
+b = {}
+b[0] = 0
+b[1] = 1
+b["keys"] = "values"
+
+if (len(b) != 3) {
+	failed()
+}
+
+
diff --git a/drivers/staging/ktap/test/looping.kp b/drivers/staging/ktap/test/looping.kp
new file mode 100644
index 000000000000..fe48051a29c2
--- /dev/null
+++ b/drivers/staging/ktap/test/looping.kp
@@ -0,0 +1,40 @@
+#!/usr/bin/env ktap
+
+function failed() {
+	printf("failed\n");
+	exit(-1);
+}
+
+### basic while-loop testing
+a = 1
+while (a < 1000) {
+	a = a + 1
+}
+
+if (a != 1000) {
+	failed()
+}
+
+### break testing
+### Note that ktap don't have continue keyword
+a = 1
+while (a < 1000) {
+	if (a == 10) {
+		break
+	}
+	a = a + 1
+}
+
+if (a != 10) {
+	failed()
+}
+
+### for-loop testing
+b=0
+for (c = 0, 1000, 1) {
+	b = b + 1
+}
+
+if (b != 1001) {
+	failed()
+}
diff --git a/drivers/staging/ktap/test/pairs.kp b/drivers/staging/ktap/test/pairs.kp
new file mode 100644
index 000000000000..cdf3825951dd
--- /dev/null
+++ b/drivers/staging/ktap/test/pairs.kp
@@ -0,0 +1,45 @@
+#!/usr/bin/env ktap
+
+function failed() {
+	printf("failed\n");
+	exit(-1);
+}
+
+#-----------------------------------------#
+
+t = {}
+t[1] = 101
+t[2] = 102
+t[3] = 103
+t["key_1"] = "value_1"
+t["key_2"] = "value_2"
+t["key_3"] = "value_3"
+
+local n = 0
+
+for (k, v in pairs(t)) {
+	n = n + 1
+
+	if (k == 1 && v != 101) {
+		failed()
+	}
+	if (k == 2 && v != 102) {
+		failed()
+	}
+	if (k == 3 && v != 103) {
+		failed()
+	}
+	if (k == "key_1" && v != "value_1") {
+		failed()
+	}
+	if (k == "key_2" && v != "value_2") {
+		failed()
+	}
+	if (k == "key_3" && v != "value_3") {
+		failed()
+	}
+}
+
+if (n != len(t)) {
+	failed()
+}
diff --git a/drivers/staging/ktap/test/run_test.sh b/drivers/staging/ktap/test/run_test.sh
new file mode 100644
index 000000000000..b98af2659123
--- /dev/null
+++ b/drivers/staging/ktap/test/run_test.sh
@@ -0,0 +1,58 @@
+#!/bin/sh
+
+rmmod ktapvm > /dev/null 2>&1
+insmod ../ktapvm.ko
+if test $? -ne 0; then
+	echo "Cannot insmod ../ktapvm.ko"
+	exit -1
+fi
+
+KTAP=../ktap
+function ktaprun {
+	echo "$KTAP $@"
+	$KTAP $@
+}
+
+
+
+#######################################################
+# Use $ktap directly if the arguments contains strings
+$KTAP arg.kp 1 testing "2 3 4"
+$KTAP -e 'print("one-liner testing")'
+$KTAP -e 'exit()'
+$KTAP -o /dev/null -e 'trace syscalls:* { print(argevent) }' \
+		-- ls > /devnull
+
+$KTAP -o /dev/null -e 'trace syscalls:* { print(argevent) }' \
+		-- $KTAP -e 'while (1) {}'
+
+ktaprun arith.kp
+ktaprun concat.kp
+ktaprun count.kp
+ktaprun fibonacci.kp
+ktaprun function.kp
+ktaprun if.kp
+ktaprun kprobe.kp
+ktaprun kretprobe.kp
+ktaprun len.kp
+ktaprun looping.kp
+ktaprun pairs.kp
+ktaprun table.kp
+ktaprun aggr_table.kp
+ktaprun timer.kp
+ktaprun tracepoint.kp
+ktaprun -o /dev/null zerodivide.kp
+ktaprun ansi.kp
+
+echo "testing kill deadloop ktap script"
+$KTAP -e 'while (1) {}' &
+pkill ktap
+sleep 1
+
+#####################################################
+rmmod ktapvm
+if test $? -ne 0; then
+	echo "Error in rmmod ../ktapvm.ko, leak module refcount?"
+	exit -1
+fi
+
diff --git a/drivers/staging/ktap/test/table.kp b/drivers/staging/ktap/test/table.kp
new file mode 100644
index 000000000000..1f6d6e43302f
--- /dev/null
+++ b/drivers/staging/ktap/test/table.kp
@@ -0,0 +1,71 @@
+#!/usr/bin/env ktap
+
+function failed() {
+	printf("failed\n");
+	exit(-1);
+}
+
+### table testing ###
+x = {}
+x[1] = "1"
+if (x[1] != "1") {
+	failed()
+}
+
+x[1] = 22222222222222222222222222222222222222222
+if (x[1] != 22222222222222222222222222222222222222222) {
+	failed()
+}
+
+x[1] = "jovi"
+if (x[1] != "jovi") {
+	failed()
+}
+
+x[11111111111111111111111111111111] = "jovi"
+if (x[11111111111111111111111111111111] != "jovi") {
+	failed()
+}
+
+x["jovi"] = 1
+if (x["jovi"] != 1) {
+	failed()
+}
+
+x["long string....................................."] = 1
+if (x["long string....................................."] != 1) {
+	failed()
+}
+
+# issue: subx must declare firstly, otherwise kernel will oops
+subx = {}
+subx["test"] = "this is test"
+x["test"] = subx
+if (x["test"]["test"] != "this is test") {
+	failed()
+}
+
+tbl = {}
+i = 1
+while (i < 100000) {
+	tbl[i] = i	
+	i = i + 1
+}
+
+i = 1
+while (i < 100000) {
+	if (tbl[i] != i) {
+		failed()
+	}
+	i = i + 1
+}
+
+#### table initization
+days = {"Sunday", "Monday", "Tuesday", "Wednesday",
+	"Thursday", "Friday", "Saturday"}
+
+if (days[2] != "Monday") {
+	failed()
+}
+
+
diff --git a/drivers/staging/ktap/test/timer.kp b/drivers/staging/ktap/test/timer.kp
new file mode 100644
index 000000000000..02e8a61da664
--- /dev/null
+++ b/drivers/staging/ktap/test/timer.kp
@@ -0,0 +1,28 @@
+#!/usr/bin/env ktap
+
+function failed() {
+	printf("failed\n");
+	exit(-1);
+}
+
+#---------------------------------------#
+
+n1 = 0
+n2 = 0
+
+tick-1s {
+	n1 = n1 + 1
+}
+
+tick-1s {
+	n2 = n2 + 1
+}
+
+tick-4s {
+	if (n1 == 0 || n2 == 0) {
+		failed()
+	}
+	exit()
+}
+
+
diff --git a/drivers/staging/ktap/test/tracepoint.kp b/drivers/staging/ktap/test/tracepoint.kp
new file mode 100644
index 000000000000..fb036e675a75
--- /dev/null
+++ b/drivers/staging/ktap/test/tracepoint.kp
@@ -0,0 +1,22 @@
+#!/usr/bin/env ktap
+
+function failed() {
+	printf("failed\n");
+	exit(-1);
+}
+
+#----------------------------------------#
+
+n = 0
+
+trace sched:* {
+	n = n + 1
+}
+
+tick-1s {
+	if (n == 0) {
+		failed()
+	}
+	exit()
+}
+
diff --git a/drivers/staging/ktap/test/zerodivide.kp b/drivers/staging/ktap/test/zerodivide.kp
new file mode 100644
index 000000000000..abb1eae4fdab
--- /dev/null
+++ b/drivers/staging/ktap/test/zerodivide.kp
@@ -0,0 +1,5 @@
+#!/usr/bin/env ktap
+
+a = 1/0
+#should not go here
+printf("Failed\n")
diff --git a/drivers/staging/ktap/userspace/code.c b/drivers/staging/ktap/userspace/code.c
new file mode 100644
index 000000000000..1427fd518dec
--- /dev/null
+++ b/drivers/staging/ktap/userspace/code.c
@@ -0,0 +1,968 @@
+/*
+ * code.c - Code generator for ktap
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
+ *  - The part of code in this file is copied from lua initially.
+ *  - lua's MIT license is compatible with GPL.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../include/ktap_types.h"
+#include "../include/ktap_opcodes.h"
+#include "ktapc.h"
+
+
+#define hasjumps(e)	((e)->t != (e)->f)
+
+void codegen_patchtohere (ktap_funcstate *fs, int list);
+
+static int isnumeral(ktap_expdesc *e)
+{
+	return (e->k == VKNUM && e->t == NO_JUMP && e->f == NO_JUMP);
+}
+
+void codegen_nil(ktap_funcstate *fs, int from, int n)
+{
+	ktap_instruction *previous;
+	int l = from + n - 1;  /* last register to set nil */
+
+	if (fs->pc > fs->lasttarget) {  /* no jumps to current position? */
+		previous = &fs->f->code[fs->pc-1];
+		if (GET_OPCODE(*previous) == OP_LOADNIL) {
+			int pfrom = GETARG_A(*previous);
+			int pl = pfrom + GETARG_B(*previous);
+
+			if ((pfrom <= from && from <= pl + 1) ||
+				(from <= pfrom && pfrom <= l + 1)) {  /* can connect both? */
+				if (pfrom < from)
+					from = pfrom;  /* from = min(from, pfrom) */
+				if (pl > l)
+					l = pl;  /* l = max(l, pl) */
+				SETARG_A(*previous, from);
+				SETARG_B(*previous, l - from);
+				return;
+			}
+		}  /* else go through */
+	}
+	codegen_codeABC(fs, OP_LOADNIL, from, n - 1, 0);  /* else no optimization */
+}
+
+int codegen_jump(ktap_funcstate *fs)
+{
+	int jpc = fs->jpc;  /* save list of jumps to here */
+	int j;
+
+	fs->jpc = NO_JUMP;
+	j = codegen_codeAsBx(fs, OP_JMP, 0, NO_JUMP);
+	codegen_concat(fs, &j, jpc);  /* keep them on hold */
+	return j;
+}
+
+void codegen_ret(ktap_funcstate *fs, int first, int nret)
+{
+	codegen_codeABC(fs, OP_RETURN, first, nret+1, 0);
+}
+
+static int condjump(ktap_funcstate *fs, OpCode op, int A, int B, int C)
+{
+	codegen_codeABC(fs, op, A, B, C);
+	return codegen_jump(fs);
+}
+
+static void fixjump(ktap_funcstate *fs, int pc, int dest)
+{
+	ktap_instruction *jmp = &fs->f->code[pc];
+	int offset = dest-(pc+1);
+
+	ktap_assert(dest != NO_JUMP);
+	if (abs(offset) > MAXARG_sBx)
+		lex_syntaxerror(fs->ls, "control structure too long");
+	SETARG_sBx(*jmp, offset);
+}
+
+/*
+ * returns current `pc' and marks it as a jump target (to avoid wrong
+ * optimizations with consecutive instructions not in the same basic block).
+ */
+int codegen_getlabel(ktap_funcstate *fs)
+{
+	fs->lasttarget = fs->pc;
+	return fs->pc;
+}
+
+static int getjump(ktap_funcstate *fs, int pc)
+{
+	int offset = GETARG_sBx(fs->f->code[pc]);
+
+	if (offset == NO_JUMP)  /* point to itself represents end of list */
+		return NO_JUMP;  /* end of list */
+	else
+		return (pc+1)+offset;  /* turn offset into absolute position */
+}
+
+static ktap_instruction *getjumpcontrol(ktap_funcstate *fs, int pc)
+{
+	ktap_instruction *pi = &fs->f->code[pc];
+	if (pc >= 1 && testTMode(GET_OPCODE(*(pi-1))))
+		return pi-1;
+	else
+		return pi;
+}
+
+/*
+ * check whether list has any jump that do not produce a value
+ * (or produce an inverted value)
+ */
+static int need_value(ktap_funcstate *fs, int list)
+{
+	for (; list != NO_JUMP; list = getjump(fs, list)) {
+		ktap_instruction i = *getjumpcontrol(fs, list);
+		if (GET_OPCODE(i) != OP_TESTSET)
+			return 1;
+	}
+	return 0;  /* not found */
+}
+
+static int patchtestreg(ktap_funcstate *fs, int node, int reg)
+{
+	ktap_instruction *i = getjumpcontrol(fs, node);
+	if (GET_OPCODE(*i) != OP_TESTSET)
+		return 0;  /* cannot patch other instructions */
+	if (reg != NO_REG && reg != GETARG_B(*i))
+		SETARG_A(*i, reg);
+	else  /* no register to put value or register already has the value */
+		*i = CREATE_ABC(OP_TEST, GETARG_B(*i), 0, GETARG_C(*i));
+
+	return 1;
+}
+
+static void removevalues(ktap_funcstate *fs, int list)
+{
+	for (; list != NO_JUMP; list = getjump(fs, list))
+		patchtestreg(fs, list, NO_REG);
+}
+
+static void patchlistaux(ktap_funcstate *fs, int list, int vtarget, int reg,
+			 int dtarget)
+{
+	while (list != NO_JUMP) {
+		int next = getjump(fs, list);
+		if (patchtestreg(fs, list, reg))
+			fixjump(fs, list, vtarget);
+		else
+			fixjump(fs, list, dtarget);  /* jump to default target */
+		list = next;
+	}
+}
+
+static void dischargejpc(ktap_funcstate *fs)
+{
+	patchlistaux(fs, fs->jpc, fs->pc, NO_REG, fs->pc);
+	fs->jpc = NO_JUMP;
+}
+
+void codegen_patchlist(ktap_funcstate *fs, int list, int target)
+{
+	if (target == fs->pc)
+		codegen_patchtohere(fs, list);
+	else {
+		ktap_assert(target < fs->pc);
+		patchlistaux(fs, list, target, NO_REG, target);
+	}
+}
+
+void codegen_patchclose(ktap_funcstate *fs, int list, int level)
+{
+	level++;  /* argument is +1 to reserve 0 as non-op */
+	while (list != NO_JUMP) {
+		int next = getjump(fs, list);
+		ktap_assert(GET_OPCODE(fs->f->code[list]) == OP_JMP &&
+			   (GETARG_A(fs->f->code[list]) == 0 ||
+			    GETARG_A(fs->f->code[list]) >= level));
+		SETARG_A(fs->f->code[list], level);
+		list = next;
+	}
+}
+
+void codegen_patchtohere(ktap_funcstate *fs, int list)
+{
+	codegen_getlabel(fs);
+	codegen_concat(fs, &fs->jpc, list);
+}
+
+void codegen_concat(ktap_funcstate *fs, int *l1, int l2)
+{
+	if (l2 == NO_JUMP)
+		return;
+	else if (*l1 == NO_JUMP)
+		*l1 = l2;
+	else {
+		int list = *l1;
+		int next;
+		while ((next = getjump(fs, list)) != NO_JUMP)  /* find last element */
+			list = next;
+		fixjump(fs, list, l2);
+	}
+}
+
+static int codegen_code(ktap_funcstate *fs, ktap_instruction i)
+{
+	ktap_proto *f = fs->f;
+
+	dischargejpc(fs);  /* `pc' will change */
+
+	/* put new instruction in code array */
+	ktapc_growvector(f->code, fs->pc, f->sizecode, ktap_instruction,
+			 MAX_INT, "opcodes");
+	f->code[fs->pc] = i;
+
+	/* save corresponding line information */
+	ktapc_growvector(f->lineinfo, fs->pc, f->sizelineinfo, int,
+			 MAX_INT, "opcodes");
+	f->lineinfo[fs->pc] = fs->ls->lastline;
+	return fs->pc++;
+}
+
+int codegen_codeABC(ktap_funcstate *fs, OpCode o, int a, int b, int c)
+{
+	ktap_assert(getOpMode(o) == iABC);
+	//ktap_assert(getBMode(o) != OpArgN || b == 0);
+	//ktap_assert(getCMode(o) != OpArgN || c == 0);
+	//ktap_assert(a <= MAXARG_A && b <= MAXARG_B && c <= MAXARG_C);
+	return codegen_code(fs, CREATE_ABC(o, a, b, c));
+}
+
+int codegen_codeABx(ktap_funcstate *fs, OpCode o, int a, unsigned int bc)
+{
+	ktap_assert(getOpMode(o) == iABx || getOpMode(o) == iAsBx);
+	ktap_assert(getCMode(o) == OpArgN);
+	ktap_assert(a <= MAXARG_A && bc <= MAXARG_Bx);
+	return codegen_code(fs, CREATE_ABx(o, a, bc));
+}
+
+static int codeextraarg(ktap_funcstate *fs, int a)
+{
+	ktap_assert(a <= MAXARG_Ax);
+	return codegen_code(fs, CREATE_Ax(OP_EXTRAARG, a));
+}
+
+int codegen_codek(ktap_funcstate *fs, int reg, int k)
+{
+	if (k <= MAXARG_Bx)
+		return codegen_codeABx(fs, OP_LOADK, reg, k);
+	else {
+		int p = codegen_codeABx(fs, OP_LOADKX, reg, 0);
+		codeextraarg(fs, k);
+		return p;
+	}
+}
+
+void codegen_checkstack(ktap_funcstate *fs, int n)
+{
+	int newstack = fs->freereg + n;
+
+	if (newstack > fs->f->maxstacksize) {
+		if (newstack >= MAXSTACK)
+			lex_syntaxerror(fs->ls, "function or expression too complex");
+		fs->f->maxstacksize = (u8)(newstack);
+	}
+}
+
+void codegen_reserveregs(ktap_funcstate *fs, int n)
+{
+	codegen_checkstack(fs, n);
+	fs->freereg += n;
+}
+
+static void freereg(ktap_funcstate *fs, int reg)
+{
+	if (!ISK(reg) && reg >= fs->nactvar) {
+		fs->freereg--;
+		ktap_assert(reg == fs->freereg);
+	}
+}
+
+static void freeexp(ktap_funcstate *fs, ktap_expdesc *e)
+{
+	if (e->k == VNONRELOC)
+		freereg(fs, e->u.info);
+}
+
+static int addk(ktap_funcstate *fs, ktap_value *key, ktap_value *v)
+{
+	const ktap_value *idx = ktapc_table_get(fs->h, key);
+	ktap_proto *f = fs->f;
+	ktap_value kn;
+	int k, oldsize;
+
+	if (ttisnumber(idx)) {
+		ktap_number n = nvalue(idx);
+		ktap_number2int(k, n);
+		if (ktapc_equalobj(&f->k[k], v))
+			return k;
+		/* else may be a collision (e.g., between 0.0 and "\0\0\0\0\0\0\0\0");
+			go through and create a new entry for this value */
+	}
+	/* constant not found; create a new entry */
+	oldsize = f->sizek;
+	k = fs->nk;
+
+	/* numerical value does not need GC barrier;
+	   table has no metatable, so it does not need to invalidate cache */
+	setnvalue(&kn, (ktap_number)k);
+	ktapc_table_setvalue(fs->h, key, &kn);
+	ktapc_growvector(f->k, k, f->sizek, ktap_value, MAXARG_Ax, "constants");
+	while (oldsize < f->sizek)
+		setnilvalue(&f->k[oldsize++]);
+	setobj(&f->k[k], v);
+	fs->nk++;
+	return k;
+}
+
+int codegen_stringK(ktap_funcstate *fs, ktap_string *s)
+{
+	ktap_value o;
+
+	setsvalue(&o, s);
+	return addk(fs, &o, &o);
+}
+
+int codegen_numberK(ktap_funcstate *fs, ktap_number r)
+{
+	int n;
+	ktap_value o, s;
+
+	setnvalue(&o, r);
+	if (r == 0 || ktap_numisnan(NULL, r)) {  /* handle -0 and NaN */
+		/* use raw representation as key to avoid numeric problems */
+		setsvalue(&s, ktapc_ts_newlstr((char *)&r, sizeof(r)));
+		//   incr_top(L);
+		n = addk(fs, &s, &o);
+		//   L->top--;
+	} else
+		n = addk(fs, &o, &o);  /* regular case */
+	return n;
+}
+
+static int boolK(ktap_funcstate *fs, int b)
+{
+	ktap_value o;
+	setbvalue(&o, b);
+	return addk(fs, &o, &o);
+}
+
+static int nilK(ktap_funcstate *fs)
+{
+	ktap_value k, v;
+	setnilvalue(&v);
+	/* cannot use nil as key; instead use table itself to represent nil */
+	sethvalue(&k, fs->h);
+	return addk(fs, &k, &v);
+}
+
+void codegen_setreturns(ktap_funcstate *fs, ktap_expdesc *e, int nresults)
+{
+	if (e->k == VCALL) {  /* expression is an open function call? */
+		SETARG_C(getcode(fs, e), nresults+1);
+	}
+	else if (e->k == VVARARG) {
+		SETARG_B(getcode(fs, e), nresults+1);
+		SETARG_A(getcode(fs, e), fs->freereg);
+		codegen_reserveregs(fs, 1);
+	}
+}
+
+void codegen_setoneret(ktap_funcstate *fs, ktap_expdesc *e)
+{
+	if (e->k == VCALL) {  /* expression is an open function call? */
+		e->k = VNONRELOC;
+		e->u.info = GETARG_A(getcode(fs, e));
+	} else if (e->k == VVARARG) {
+		SETARG_B(getcode(fs, e), 2);
+		e->k = VRELOCABLE;  /* can relocate its simple result */
+	}
+}
+
+void codegen_dischargevars(ktap_funcstate *fs, ktap_expdesc *e)
+{
+	switch (e->k) {
+	case VLOCAL: {
+		e->k = VNONRELOC;
+		break;
+	}
+	case VUPVAL: {
+		e->u.info = codegen_codeABC(fs, OP_GETUPVAL, 0, e->u.info, 0);
+		e->k = VRELOCABLE;
+		break;
+	}
+	case VINDEXED: {
+		OpCode op = OP_GETTABUP;  /* assume 't' is in an upvalue */
+		freereg(fs, e->u.ind.idx);
+		if (e->u.ind.vt == VLOCAL) {  /* 't' is in a register? */
+			freereg(fs, e->u.ind.t);
+			op = OP_GETTABLE;
+		}
+		e->u.info = codegen_codeABC(fs, op, 0, e->u.ind.t, e->u.ind.idx);
+		e->k = VRELOCABLE;
+		break;
+	}
+	case VVARARG:
+	case VCALL: {
+		codegen_setoneret(fs, e);
+		break;
+	}
+	default:
+		break;  /* there is one value available (somewhere) */
+	}
+}
+
+static int code_label(ktap_funcstate *fs, int A, int b, int jump)
+{
+	codegen_getlabel(fs);  /* those instructions may be jump targets */
+	return codegen_codeABC(fs, OP_LOADBOOL, A, b, jump);
+}
+
+static void discharge2reg(ktap_funcstate *fs, ktap_expdesc *e, int reg)
+{
+	codegen_dischargevars(fs, e);
+	switch (e->k) {
+	case VNIL: {
+		codegen_nil(fs, reg, 1);
+		break;
+	}
+	case VFALSE:  case VTRUE: {
+		codegen_codeABC(fs, OP_LOADBOOL, reg, e->k == VTRUE, 0);
+ 		break;
+	}
+	case VEVENT:
+		codegen_codeABC(fs, OP_EVENT, reg, 0, 0);
+		break;
+	case VEVENTNAME:
+		codegen_codeABC(fs, OP_EVENTNAME, reg, 0, 0);
+		break;
+	case VEVENTARG:
+		codegen_codeABC(fs, OP_EVENTARG, reg, e->u.info, 0);
+		break;
+	case VK: {
+		codegen_codek(fs, reg, e->u.info);
+		break;
+	}
+	case VKNUM: {
+		codegen_codek(fs, reg, codegen_numberK(fs, e->u.nval));
+		break;
+	}
+	case VRELOCABLE: {
+		ktap_instruction *pc = &getcode(fs, e);
+		SETARG_A(*pc, reg);
+		break;
+	}
+	case VNONRELOC: {
+		if (reg != e->u.info)
+			codegen_codeABC(fs, OP_MOVE, reg, e->u.info, 0);
+		break;
+	}
+	default:
+		ktap_assert(e->k == VVOID || e->k == VJMP);
+		return;  /* nothing to do... */
+	}
+
+	e->u.info = reg;
+	e->k = VNONRELOC;
+}
+
+static void discharge2anyreg(ktap_funcstate *fs, ktap_expdesc *e)
+{
+	if (e->k != VNONRELOC) {
+		codegen_reserveregs(fs, 1);
+		discharge2reg(fs, e, fs->freereg-1);
+	}
+}
+
+static void exp2reg(ktap_funcstate *fs, ktap_expdesc *e, int reg)
+{
+	discharge2reg(fs, e, reg);
+	if (e->k == VJMP)
+		codegen_concat(fs, &e->t, e->u.info);  /* put this jump in `t' list */
+	if (hasjumps(e)) {
+		int final;  /* position after whole expression */
+		int p_f = NO_JUMP;  /* position of an eventual LOAD false */
+		int p_t = NO_JUMP;  /* position of an eventual LOAD true */
+
+		if (need_value(fs, e->t) || need_value(fs, e->f)) {
+			int fj = (e->k == VJMP) ? NO_JUMP : codegen_jump(fs);
+
+			p_f = code_label(fs, reg, 0, 1);
+			p_t = code_label(fs, reg, 1, 0);
+			codegen_patchtohere(fs, fj);
+		}
+		final = codegen_getlabel(fs);
+		patchlistaux(fs, e->f, final, reg, p_f);
+		patchlistaux(fs, e->t, final, reg, p_t);
+	}
+	e->f = e->t = NO_JUMP;
+	e->u.info = reg;
+	e->k = VNONRELOC;
+}
+
+void codegen_exp2nextreg(ktap_funcstate *fs, ktap_expdesc *e)
+{
+	codegen_dischargevars(fs, e);
+	freeexp(fs, e);
+	codegen_reserveregs(fs, 1);
+	exp2reg(fs, e, fs->freereg - 1);
+}
+
+int codegen_exp2anyreg(ktap_funcstate *fs, ktap_expdesc *e)
+{
+	codegen_dischargevars(fs, e);
+	if (e->k == VNONRELOC) {
+		if (!hasjumps(e))
+			return e->u.info;  /* exp is already in a register */
+		if (e->u.info >= fs->nactvar) {  /* reg. is not a local? */
+			exp2reg(fs, e, e->u.info);  /* put value on it */
+			return e->u.info;
+		}
+	}
+	codegen_exp2nextreg(fs, e);  /* default */
+	return e->u.info;
+}
+
+void codegen_exp2anyregup(ktap_funcstate *fs, ktap_expdesc *e)
+{
+	if (e->k != VUPVAL || hasjumps(e))
+		codegen_exp2anyreg(fs, e);
+}
+
+void codegen_exp2val(ktap_funcstate *fs, ktap_expdesc *e)
+{
+	if (hasjumps(e))
+		codegen_exp2anyreg(fs, e);
+	else
+		codegen_dischargevars(fs, e);
+}
+
+int codegen_exp2RK(ktap_funcstate *fs, ktap_expdesc *e)
+{
+	codegen_exp2val(fs, e);
+	switch (e->k) {
+	case VTRUE:
+	case VFALSE:
+	case VNIL: {
+		if (fs->nk <= MAXINDEXRK) {  /* constant fits in RK operand? */
+			e->u.info = (e->k == VNIL) ? nilK(fs) :
+						     boolK(fs, (e->k == VTRUE));
+			e->k = VK;
+			return RKASK(e->u.info);
+		}
+		else
+			break;
+	}
+	case VKNUM: {
+		e->u.info = codegen_numberK(fs, e->u.nval);
+		e->k = VK;
+		/* go through */
+	}
+	case VK: {
+		if (e->u.info <= MAXINDEXRK)  /* constant fits in argC? */
+			return RKASK(e->u.info);
+		else
+			break;
+	}
+	default:
+		break;
+	}
+	/* not a constant in the right range: put it in a register */
+	return codegen_exp2anyreg(fs, e);
+}
+
+void codegen_storevar(ktap_funcstate *fs, ktap_expdesc *var, ktap_expdesc *ex)
+{
+	switch (var->k) {
+	case VLOCAL: {
+		freeexp(fs, ex);
+		exp2reg(fs, ex, var->u.info);
+		return;
+	}
+	case VUPVAL: {
+		int e = codegen_exp2anyreg(fs, ex);
+		codegen_codeABC(fs, OP_SETUPVAL, e, var->u.info, 0);
+		break;
+	}
+	case VINDEXED: {
+		OpCode op = (var->u.ind.vt == VLOCAL) ? OP_SETTABLE : OP_SETTABUP;
+		int e = codegen_exp2RK(fs, ex);
+		codegen_codeABC(fs, op, var->u.ind.t, var->u.ind.idx, e);
+		break;
+	}
+	default:
+		ktap_assert(0);  /* invalid var kind to store */
+		break;
+	}
+
+	freeexp(fs, ex);
+}
+
+void codegen_storeincr(ktap_funcstate *fs, ktap_expdesc *var, ktap_expdesc *ex)
+{
+	switch (var->k) {
+#if 0 /*current not supported */
+	case VLOCAL: {
+		freeexp(fs, ex);
+		exp2reg(fs, ex, var->u.info);
+		return;
+	}
+	case VUPVAL: {
+		int e = codegen_exp2anyreg(fs, ex);
+		codegen_codeABC(fs, OP_SETUPVAL, e, var->u.info, 0);
+		break;
+	}
+#endif
+	case VINDEXED: {
+		OpCode op = (var->u.ind.vt == VLOCAL) ? OP_SETTABLE_INCR :
+				OP_SETTABUP_INCR;
+		int e = codegen_exp2RK(fs, ex);
+		codegen_codeABC(fs, op, var->u.ind.t, var->u.ind.idx, e);
+		break;
+	}
+	default:
+		ktap_assert(0);  /* invalid var kind to store */
+		break;
+	}
+
+	freeexp(fs, ex);
+}
+
+
+void codegen_self(ktap_funcstate *fs, ktap_expdesc *e, ktap_expdesc *key)
+{
+	int ereg;
+
+	codegen_exp2anyreg(fs, e);
+	ereg = e->u.info;  /* register where 'e' was placed */
+	freeexp(fs, e);
+	e->u.info = fs->freereg;  /* base register for op_self */
+	e->k = VNONRELOC;
+	codegen_reserveregs(fs, 2);  /* function and 'self' produced by op_self */
+	codegen_codeABC(fs, OP_SELF, e->u.info, ereg, codegen_exp2RK(fs, key));
+	freeexp(fs, key);
+}
+
+static void invertjump(ktap_funcstate *fs, ktap_expdesc *e)
+{
+	ktap_instruction *pc = getjumpcontrol(fs, e->u.info);
+	ktap_assert(testTMode(GET_OPCODE(*pc)) && GET_OPCODE(*pc) != OP_TESTSET &&
+			GET_OPCODE(*pc) != OP_TEST);
+	SETARG_A(*pc, !(GETARG_A(*pc)));
+}
+
+static int jumponcond(ktap_funcstate *fs, ktap_expdesc *e, int cond)
+{
+	if (e->k == VRELOCABLE) {
+		ktap_instruction ie = getcode(fs, e);
+		if (GET_OPCODE(ie) == OP_NOT) {
+			fs->pc--;  /* remove previous OP_NOT */
+			return condjump(fs, OP_TEST, GETARG_B(ie), 0, !cond);
+		}
+		/* else go through */
+	}
+	discharge2anyreg(fs, e);
+	freeexp(fs, e);
+	return condjump(fs, OP_TESTSET, NO_REG, e->u.info, cond);
+}
+
+void codegen_goiftrue(ktap_funcstate *fs, ktap_expdesc *e)
+{
+	int pc;  /* pc of last jump */
+
+	codegen_dischargevars(fs, e);
+	switch (e->k) {
+	case VJMP: {
+		invertjump(fs, e);
+		pc = e->u.info;
+		break;
+	}
+	case VK: case VKNUM: case VTRUE: {
+		pc = NO_JUMP;  /* always true; do nothing */
+		break;
+	}
+	default:
+		pc = jumponcond(fs, e, 0);
+		break;
+	}
+
+	codegen_concat(fs, &e->f, pc);  /* insert last jump in `f' list */
+	codegen_patchtohere(fs, e->t);
+	e->t = NO_JUMP;
+}
+
+void codegen_goiffalse(ktap_funcstate *fs, ktap_expdesc *e)
+{
+	int pc;  /* pc of last jump */
+	codegen_dischargevars(fs, e);
+
+	switch (e->k) {
+	case VJMP: {
+		pc = e->u.info;
+		break;
+	}
+	case VNIL: case VFALSE: {
+		pc = NO_JUMP;  /* always false; do nothing */
+ 		break;
+	}
+	default:
+		pc = jumponcond(fs, e, 1);
+		break;
+	}
+	codegen_concat(fs, &e->t, pc);  /* insert last jump in `t' list */
+	codegen_patchtohere(fs, e->f);
+	e->f = NO_JUMP;
+}
+
+static void codenot(ktap_funcstate *fs, ktap_expdesc *e)
+{
+	codegen_dischargevars(fs, e);
+	switch (e->k) {
+	case VNIL: case VFALSE: {
+		e->k = VTRUE;
+		break;
+	}
+	case VK: case VKNUM: case VTRUE: {
+		e->k = VFALSE;
+		break;
+	}
+	case VJMP: {
+		invertjump(fs, e);
+		break;
+	}
+	case VRELOCABLE:
+	case VNONRELOC: {
+		discharge2anyreg(fs, e);
+		freeexp(fs, e);
+		e->u.info = codegen_codeABC(fs, OP_NOT, 0, e->u.info, 0);
+		e->k = VRELOCABLE;
+		break;
+	}
+	default:
+		ktap_assert(0);  /* cannot happen */
+		break;
+	}
+
+	/* interchange true and false lists */
+	{ int temp = e->f; e->f = e->t; e->t = temp; }
+	removevalues(fs, e->f);
+	removevalues(fs, e->t);
+}
+
+void codegen_indexed(ktap_funcstate *fs, ktap_expdesc *t, ktap_expdesc *k)
+{
+	ktap_assert(!hasjumps(t));
+	t->u.ind.t = t->u.info;
+	t->u.ind.idx = codegen_exp2RK(fs, k);
+	t->u.ind.vt = (t->k == VUPVAL) ? VUPVAL
+			: check_exp(vkisinreg(t->k), VLOCAL);
+	t->k = VINDEXED;
+}
+
+static int constfolding(OpCode op, ktap_expdesc *e1, ktap_expdesc *e2)
+{
+	ktap_number r;
+
+	if (!isnumeral(e1) || !isnumeral(e2))
+		return 0;
+
+	if ((op == OP_DIV || op == OP_MOD) && e2->u.nval == 0)
+		return 0;  /* do not attempt to divide by 0 */
+
+	if (op == OP_POW)
+		return 0; /* ktap current do not suppor pow arith */
+
+	r = ktapc_arith(op - OP_ADD + KTAP_OPADD, e1->u.nval, e2->u.nval);
+	e1->u.nval = r;
+	return 1;
+}
+
+static void codearith(ktap_funcstate *fs, OpCode op,
+		      ktap_expdesc *e1, ktap_expdesc *e2, int line)
+{
+	if (constfolding(op, e1, e2))
+		return;
+	else {
+		int o2 = (op != OP_UNM && op != OP_LEN) ? codegen_exp2RK(fs, e2) : 0;
+		int o1 = codegen_exp2RK(fs, e1);
+
+		if (o1 > o2) {
+			freeexp(fs, e1);
+			freeexp(fs, e2);
+		} else {
+			freeexp(fs, e2);
+			freeexp(fs, e1);
+		}
+		e1->u.info = codegen_codeABC(fs, op, 0, o1, o2);
+		e1->k = VRELOCABLE;
+		codegen_fixline(fs, line);
+	}
+}
+
+static void codecomp(ktap_funcstate *fs, OpCode op, int cond, ktap_expdesc *e1,
+		     ktap_expdesc *e2)
+{
+	int o1 = codegen_exp2RK(fs, e1);
+	int o2 = codegen_exp2RK(fs, e2);
+
+	freeexp(fs, e2);
+	freeexp(fs, e1);
+	if (cond == 0 && op != OP_EQ) {
+		int temp;  /* exchange args to replace by `<' or `<=' */
+		temp = o1; o1 = o2; o2 = temp;  /* o1 <==> o2 */
+		cond = 1;
+	}
+	e1->u.info = condjump(fs, op, cond, o1, o2);
+	e1->k = VJMP;
+}
+
+void codegen_prefix(ktap_funcstate *fs, UnOpr op, ktap_expdesc *e, int line)
+{
+	ktap_expdesc e2;
+
+	e2.t = e2.f = NO_JUMP;
+	e2.k = VKNUM;
+	e2.u.nval = 0;
+
+	switch (op) {
+	case OPR_MINUS: {
+		if (isnumeral(e))  /* minus constant? */
+			e->u.nval = ktap_numunm(e->u.nval);  /* fold it */
+		else {
+			codegen_exp2anyreg(fs, e);
+			codearith(fs, OP_UNM, e, &e2, line);
+		}
+		break;
+	}
+	case OPR_NOT:
+		codenot(fs, e);
+		break;
+	case OPR_LEN: {
+		codegen_exp2anyreg(fs, e);  /* cannot operate on constants */
+		codearith(fs, OP_LEN, e, &e2, line);
+		break;
+	}
+	default:
+		ktap_assert(0);
+	}
+}
+
+void codegen_infix(ktap_funcstate *fs, BinOpr op, ktap_expdesc *v)
+{
+	switch (op) {
+	case OPR_AND: {
+		codegen_goiftrue(fs, v);
+		break;
+	}
+	case OPR_OR: {
+		codegen_goiffalse(fs, v);
+		break;
+	}
+	case OPR_CONCAT: {
+		codegen_exp2nextreg(fs, v);  /* operand must be on the `stack' */
+		break;
+	}
+	case OPR_ADD: case OPR_SUB: case OPR_MUL: case OPR_DIV:
+	case OPR_MOD: case OPR_POW: {
+		if (!isnumeral(v)) codegen_exp2RK(fs, v);
+			break;
+	}
+	default:
+		codegen_exp2RK(fs, v);
+		break;
+	}
+}
+
+void codegen_posfix(ktap_funcstate *fs, BinOpr op, ktap_expdesc *e1, ktap_expdesc *e2, int line)
+{
+	switch (op) {
+	case OPR_AND: {
+		ktap_assert(e1->t == NO_JUMP);  /* list must be closed */
+		codegen_dischargevars(fs, e2);
+		codegen_concat(fs, &e2->f, e1->f);
+		*e1 = *e2;
+		break;
+	}
+	case OPR_OR: {
+		ktap_assert(e1->f == NO_JUMP);  /* list must be closed */
+		codegen_dischargevars(fs, e2);
+		codegen_concat(fs, &e2->t, e1->t);
+		*e1 = *e2;
+		break;
+	}
+	case OPR_CONCAT: {
+		codegen_exp2val(fs, e2);
+		if (e2->k == VRELOCABLE && GET_OPCODE(getcode(fs, e2)) == OP_CONCAT) {
+			ktap_assert(e1->u.info == GETARG_B(getcode(fs, e2))-1);
+			freeexp(fs, e1);
+			SETARG_B(getcode(fs, e2), e1->u.info);
+			e1->k = VRELOCABLE; e1->u.info = e2->u.info;
+		} else {
+			codegen_exp2nextreg(fs, e2);  /* operand must be on the 'stack' */
+			codearith(fs, OP_CONCAT, e1, e2, line);
+		}
+		break;
+	}
+	case OPR_ADD: case OPR_SUB: case OPR_MUL: case OPR_DIV:
+	case OPR_MOD: case OPR_POW: {
+		codearith(fs, (OpCode)(op - OPR_ADD + OP_ADD), e1, e2, line);
+		break;
+	}
+	case OPR_EQ: case OPR_LT: case OPR_LE: {
+		codecomp(fs, (OpCode)(op - OPR_EQ + OP_EQ), 1, e1, e2);
+		break;
+	}
+	case OPR_NE: case OPR_GT: case OPR_GE: {
+		codecomp(fs, (OpCode)(op - OPR_NE + OP_EQ), 0, e1, e2);
+		break;
+	}
+	default:
+		ktap_assert(0);
+	}
+}
+
+void codegen_fixline(ktap_funcstate *fs, int line)
+{
+	fs->f->lineinfo[fs->pc - 1] = line;
+}
+
+void codegen_setlist(ktap_funcstate *fs, int base, int nelems, int tostore)
+{
+	int c =  (nelems - 1)/LFIELDS_PER_FLUSH + 1;
+	int b = (tostore == KTAP_MULTRET) ? 0 : tostore;
+
+	ktap_assert(tostore != 0);
+	if (c <= MAXARG_C)
+		codegen_codeABC(fs, OP_SETLIST, base, b, c);
+	else if (c <= MAXARG_Ax) {
+		codegen_codeABC(fs, OP_SETLIST, base, b, 0);
+		codeextraarg(fs, c);
+	} else
+		lex_syntaxerror(fs->ls, "constructor too long");
+	fs->freereg = base + 1;  /* free registers with list values */
+}
+
diff --git a/drivers/staging/ktap/userspace/dump.c b/drivers/staging/ktap/userspace/dump.c
new file mode 100644
index 000000000000..088b08d0fa8e
--- /dev/null
+++ b/drivers/staging/ktap/userspace/dump.c
@@ -0,0 +1,187 @@
+/*
+ * dump.c - save precompiled ktap chunks
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
+ *  - The part of code in this file is copied from lua initially.
+ *  - lua's MIT license is compatible with GPL.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../include/ktap_types.h"
+#include "../include/ktap_opcodes.h"
+#include "ktapc.h"
+
+
+typedef struct {
+	ktap_writer writer;
+	void *data;
+	int strip;
+	int status;
+} DumpState;
+
+#define DumpMem(b, n, size, D)	DumpBlock(b, (n)*(size), D)
+#define DumpVar(x, D)		DumpMem(&x, 1, sizeof(x), D)
+
+static void DumpBlock(const void *b, size_t size, DumpState *D)
+{
+	if (D->status == 0)
+		D->status = ((D->writer))(b, size, D->data);
+}
+
+static void DumpChar(int y, DumpState *D)
+{
+	char x = (char)y;
+	DumpVar(x, D);
+}
+
+static void DumpInt(int x, DumpState *D)
+{
+	DumpVar(x, D);
+}
+
+static void DumpNumber(ktap_number x, DumpState *D)
+{
+	DumpVar(x,D);
+}
+
+static void DumpVector(const void *b, int n, size_t size, DumpState *D)
+{
+	DumpInt(n, D);
+	DumpMem(b, n, size, D);
+}
+
+static void DumpString(const ktap_string *s, DumpState *D)
+{
+	if (s == NULL) {
+		int size = 0;
+		DumpVar(size, D);
+	} else {
+		int size = s->tsv.len + 1;		/* include trailing '\0' */
+		DumpVar(size, D);
+		DumpBlock(getstr(s), size * sizeof(char), D);
+	}
+}
+
+#define DumpCode(f, D)	 DumpVector(f->code, f->sizecode, sizeof(ktap_instruction), D)
+
+static void DumpFunction(const ktap_proto *f, DumpState *D);
+
+static void DumpConstants(const ktap_proto *f, DumpState *D)
+{
+	int i, n = f->sizek;
+
+	DumpInt(n, D);
+	for (i = 0; i < n; i++) {
+		const ktap_value* o=&f->k[i];
+		DumpChar(ttypenv(o), D);
+		switch (ttypenv(o)) {
+		case KTAP_TNIL:
+			break;
+		case KTAP_TBOOLEAN:
+			DumpChar(bvalue(o), D);
+			break;
+		case KTAP_TNUMBER:
+			DumpNumber(nvalue(o), D);
+			break;
+		case KTAP_TSTRING:
+			DumpString(rawtsvalue(o), D);
+			break;
+		default:
+			printf("ktap: DumpConstants with unknown vaule type %d\n", ttypenv(o));
+			ktap_assert(0);
+		}
+	}
+	n = f->sizep;
+	DumpInt(n, D);
+	for (i = 0; i < n; i++)
+		DumpFunction(f->p[i], D);
+}
+
+static void DumpUpvalues(const ktap_proto *f, DumpState *D)
+{
+	int i, n = f->sizeupvalues;
+
+	DumpInt(n, D);
+	for (i = 0; i < n; i++) {
+		DumpChar(f->upvalues[i].instack, D);
+		DumpChar(f->upvalues[i].idx, D);
+	}
+}
+
+static void DumpDebug(const ktap_proto *f, DumpState *D)
+{
+	int i,n;
+
+	DumpString((D->strip) ? NULL : f->source, D);
+	n= (D->strip) ? 0 : f->sizelineinfo;
+	DumpVector(f->lineinfo, n, sizeof(int), D);
+	n = (D->strip) ? 0 : f->sizelocvars;
+	DumpInt(n, D);
+
+	for (i = 0; i < n; i++) {
+		DumpString(f->locvars[i].varname, D);
+		DumpInt(f->locvars[i].startpc, D);
+		DumpInt(f->locvars[i].endpc, D);
+	}
+	n = (D->strip) ? 0 : f->sizeupvalues;
+	DumpInt(n, D);
+	for (i = 0; i < n; i++)
+		DumpString(f->upvalues[i].name, D);
+}
+
+static void DumpFunction(const ktap_proto *f, DumpState *D)
+{
+	DumpInt(f->linedefined, D);
+	DumpInt(f->lastlinedefined, D);
+	DumpChar(f->numparams, D);
+	DumpChar(f->is_vararg, D);
+	DumpChar(f->maxstacksize, D);
+	DumpCode(f, D);
+	DumpConstants(f, D);
+	DumpUpvalues(f, D);
+	DumpDebug(f, D);
+}
+
+static void DumpHeader(DumpState *D)
+{
+	u8 h[KTAPC_HEADERSIZE];
+
+	kp_header(h);
+	DumpBlock(h, KTAPC_HEADERSIZE, D);
+}
+
+/*
+ * dump ktap function as precompiled chunk
+ */
+int ktapc_dump(const ktap_proto *f, ktap_writer w, void *data, int strip)
+{
+	DumpState D;
+
+	D.writer = w;
+	D.data = data;
+	D.strip = strip;
+	D.status = 0;
+	DumpHeader(&D);
+	DumpFunction(f, &D);
+	return D.status;
+}
diff --git a/drivers/staging/ktap/userspace/eventdef.c b/drivers/staging/ktap/userspace/eventdef.c
new file mode 100644
index 000000000000..76a68ac8aabc
--- /dev/null
+++ b/drivers/staging/ktap/userspace/eventdef.c
@@ -0,0 +1,588 @@
+/*
+ * eventdef.c - ktap eventdef parser
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dirent.h>
+#include <fcntl.h>
+
+#include "../include/ktap_types.h"
+#include "../include/ktap_opcodes.h"
+#include "ktapc.h"
+
+static char tracing_events_path[] = "/sys/kernel/debug/tracing/events";
+
+#define IDS_ARRAY_SIZE 4096
+static u8 *ids_array;
+
+#define set_id(id)	\
+	do { \
+		ids_array[id/8] = ids_array[id/8] | (1 << (id%8));	\
+	} while(0)
+
+#define clear_id(id)	\
+	do { \
+		ids_array[id/8] = ids_array[id/8] & ~ (1 << (id%8));	\
+	} while(0)
+
+
+static int get_digit_len(int id)
+{
+	int len = -1;
+
+	if (id < 10)
+		len = 1;
+	else if (id < 100)
+		len = 2;
+	else if (id < 1000)
+		len = 3;
+	else if (id < 10000)
+		len = 4;
+	else if (id < 100000)
+		len = 5;
+
+	return len;
+}
+
+static char *get_idstr(char *filter)
+{
+	char *idstr, *ptr;
+	int total_len = 0;
+	int filter_len;
+	int i;
+
+	filter_len = filter ? strlen(filter) : 0;
+
+	for (i = 0; i < IDS_ARRAY_SIZE*8; i++) {
+		if (ids_array[i/8] & (1 << (i%8)))
+			total_len += get_digit_len(i) + 1;
+	}
+
+	if (!total_len)
+		return NULL;
+
+	idstr = malloc(total_len + filter_len + 1);
+	if (!idstr)
+		return NULL;
+
+	memset(idstr, 0, total_len + filter_len + 1);
+	ptr = idstr;
+	for (i = 0; i < IDS_ARRAY_SIZE*8; i++) {
+		if (ids_array[i/8] & (1 << (i%8))) {
+			char digits[32] = {0};
+			int len;
+
+			sprintf(digits, "%d ", i);
+			len = strlen(digits);
+			strncpy(ptr, digits, len);
+			ptr += len;
+		}
+	}
+
+	if (filter)
+		memcpy(ptr, filter, strlen(filter));
+
+	return idstr;
+}
+
+static int add_event(char *evtid_path)
+{
+	char id_buf[24];
+	int id, fd;
+
+	fd = open(evtid_path, O_RDONLY);
+	if (fd < 0) {
+		/*
+		 * some tracepoint doesn't have id file, like ftrace,
+		 * return success in here, and don't print error.
+		 */
+		verbose_printf("warning: cannot open file %s\n", evtid_path);
+		return 0;
+	}
+
+	if (read(fd, id_buf, sizeof(id_buf)) < 0) {
+		fprintf(stderr, "read file error %s\n", evtid_path);
+		close(fd);
+		return -1;
+	}
+
+	id = atoll(id_buf);
+
+	if (id >= IDS_ARRAY_SIZE * 8) {
+		fprintf(stderr, "tracepoint id(%d) is bigger than %d\n", id,
+				IDS_ARRAY_SIZE * 8);
+		close(fd);
+		return -1;
+	}
+
+	set_id(id);
+
+	close(fd);
+	return 0;
+}
+
+static int add_tracepoint(char *sys_name, char *evt_name)
+{
+	char evtid_path[PATH_MAX] = {0};
+
+
+	snprintf(evtid_path, PATH_MAX, "%s/%s/%s/id", tracing_events_path,
+					sys_name, evt_name);
+	return add_event(evtid_path);
+}
+
+static int add_tracepoint_multi_event(char *sys_name, char *evt_name)
+{
+	char evt_path[PATH_MAX];
+	struct dirent *evt_ent;
+	DIR *evt_dir;
+	int ret = 0;
+
+	snprintf(evt_path, PATH_MAX, "%s/%s", tracing_events_path, sys_name);
+	evt_dir = opendir(evt_path);
+	if (!evt_dir) {
+		perror("Can't open event dir");
+		return -1;
+	}
+
+	while (!ret && (evt_ent = readdir(evt_dir))) {
+		if (!strcmp(evt_ent->d_name, ".")
+		    || !strcmp(evt_ent->d_name, "..")
+		    || !strcmp(evt_ent->d_name, "enable")
+		    || !strcmp(evt_ent->d_name, "filter"))
+			continue;
+
+		if (!strglobmatch(evt_ent->d_name, evt_name))
+			continue;
+
+		ret = add_tracepoint(sys_name, evt_ent->d_name);
+	}
+
+	closedir(evt_dir);
+	return ret;
+}
+
+static int add_tracepoint_event(char *sys_name, char *evt_name)
+{
+	return strpbrk(evt_name, "*?") ?
+	       add_tracepoint_multi_event(sys_name, evt_name) :
+	       add_tracepoint(sys_name, evt_name);
+}
+
+static int add_tracepoint_multi_sys(char *sys_name, char *evt_name)
+{
+	struct dirent *events_ent;
+	DIR *events_dir;
+	int ret = 0;
+
+	events_dir = opendir(tracing_events_path);
+	if (!events_dir) {
+		perror("Can't open event dir");
+		return -1;
+	}
+
+	while (!ret && (events_ent = readdir(events_dir))) {
+		if (!strcmp(events_ent->d_name, ".")
+		    || !strcmp(events_ent->d_name, "..")
+		    || !strcmp(events_ent->d_name, "enable")
+		    || !strcmp(events_ent->d_name, "header_event")
+		    || !strcmp(events_ent->d_name, "header_page"))
+			continue;
+
+		if (!strglobmatch(events_ent->d_name, sys_name))
+			continue;
+
+		ret = add_tracepoint_event(events_ent->d_name,
+					   evt_name);
+	}
+
+	closedir(events_dir);
+	return ret;
+}
+
+static int parse_events_add_tracepoint(char *sys, char *event)
+{
+	if (strpbrk(sys, "*?"))
+		return add_tracepoint_multi_sys(sys, event);
+	else
+		return add_tracepoint_event(sys, event);
+}
+
+enum {
+	KPROBE_EVENT,
+	UPROBE_EVENT,
+};
+
+struct probe_list {
+	struct probe_list *next;
+	int type;
+	int kp_seq;
+	char *probe_event;
+};
+
+static struct probe_list *probe_list_head;
+
+#define KPROBE_EVENTS_PATH "/sys/kernel/debug/tracing/kprobe_events"
+
+static int parse_events_add_kprobe(char *old_event)
+{
+	static int event_seq = 0;
+	struct probe_list *pl;
+	char probe_event[128] = {0};
+	char event_id_path[128] = {0};
+	char *event;
+	char *r;
+	int fd;
+	int ret;
+
+	fd = open(KPROBE_EVENTS_PATH, O_WRONLY);
+	if (fd < 0) {
+		fprintf(stderr, "Cannot open %s\n", KPROBE_EVENTS_PATH);
+		return -1;
+	}
+
+	event = strdup(old_event);
+	r = strstr(event, "%return");
+	if (r) {
+		memset(r, ' ', 7);
+		snprintf(probe_event, 128, "r:kprobes/kp%d %s",
+				event_seq, event);
+	} else
+		snprintf(probe_event, 128, "p:kprobes/kp%d %s",
+				event_seq, event);
+
+	free(event);
+
+	verbose_printf("kprobe event %s\n", probe_event);
+	ret = write(fd, probe_event, strlen(probe_event));
+	if (ret <= 0) {
+		fprintf(stderr, "Cannot write %s to %s\n", probe_event,
+				KPROBE_EVENTS_PATH);
+		close(fd);
+		return -1;
+	}
+
+	close(fd);
+
+	pl = malloc(sizeof(struct probe_list));
+	if (!pl)
+		return -1;
+
+	pl->type = KPROBE_EVENT;
+	pl->kp_seq = event_seq;
+	pl->next = probe_list_head;
+	probe_list_head = pl;
+
+	sprintf(event_id_path, "/sys/kernel/debug/tracing/events/kprobes/kp%d/id",
+			event_seq);
+	ret = add_event(event_id_path);
+	if (ret < 0)
+		return -1;
+
+	event_seq++;
+	return 0;
+}
+
+#define UPROBE_EVENTS_PATH "/sys/kernel/debug/tracing/uprobe_events"
+
+static int parse_events_add_uprobe(char *old_event)
+{
+	static int event_seq = 0;
+	struct probe_list *pl;
+	char probe_event[128] = {0};
+	char event_id_path[128] = {0};
+	char *event;
+	char *r;
+	int fd;
+	int ret;
+
+	fd = open(UPROBE_EVENTS_PATH, O_WRONLY);
+	if (fd < 0) {
+		fprintf(stderr, "Cannot open %s\n", UPROBE_EVENTS_PATH);
+		return -1;
+	}
+
+	event = strdup(old_event);
+	r = strstr(event, "%return");
+	if (r) {
+		memset(r, ' ', 7);
+		snprintf(probe_event, 128, "r:uprobes/kp%d %s",
+				event_seq, event);
+	} else
+		snprintf(probe_event, 128, "p:uprobes/kp%d %s",
+				event_seq, event);
+
+	free(event);
+
+	verbose_printf("uprobe event %s\n", probe_event);
+	ret = write(fd, probe_event, strlen(probe_event));
+	if (ret <= 0) {
+		fprintf(stderr, "Cannot write %s to %s\n", probe_event,
+				UPROBE_EVENTS_PATH);
+		close(fd);
+		return -1;
+	}
+
+	close(fd);
+
+	pl = malloc(sizeof(struct probe_list));
+	if (!pl)
+		return -1;
+
+	pl->type = UPROBE_EVENT;
+	pl->kp_seq = event_seq;
+	pl->next = probe_list_head;
+	probe_list_head = pl;
+
+	sprintf(event_id_path, "/sys/kernel/debug/tracing/events/uprobes/kp%d/id",
+			event_seq);
+	ret = add_event(event_id_path);
+	if (ret < 0)
+		return -1;
+
+	event_seq++;
+	return 0;
+}
+
+static int parse_events_add_probe(char *old_event)
+{
+	char *separator;
+
+	separator = strchr(old_event, ':');
+	if (!separator || (separator == old_event))
+		return parse_events_add_kprobe(old_event);
+	else
+		return parse_events_add_uprobe(old_event);
+}
+
+static int parse_events_add_stapsdt(char *old_event)
+{
+	printf("Currently ktap don't support stapsdt, please waiting\n");
+
+	return -1;
+}
+
+static void strim(char *s)
+{
+	size_t size;
+	char *end;
+
+	size = strlen(s);
+	if (!size)
+		return;
+
+	end = s + size -1;
+	while (end >= s && isspace(*end))
+		end--;
+
+	*(end + 1) = '\0';
+}
+
+static int get_sys_event_filter_str(char *start,
+				    char **sys, char **event, char **filter)
+{
+	char *separator, *separator2, *ptr, *end;
+
+	while (*start == ' ')
+		start++;
+
+	/* find sys */
+	separator = strchr(start, ':');
+	if (!separator || (separator == start)) {
+		return -1;
+	}
+
+	ptr = malloc(separator - start + 1);
+	if (!ptr)
+		return -1;
+
+	strncpy(ptr, start, separator - start);
+	ptr[separator - start] = '\0';
+
+	strim(ptr);
+	*sys = ptr;
+
+	if (!strcmp(*sys, "probe") && (*(separator + 1) == '/')) {
+		/* it's uprobe event */
+		separator2 = strchr(separator + 1, ':');
+		if (!separator2)
+			return -1;
+	} else
+		separator2 = separator;
+
+	/* find filter */
+	end = start + strlen(start);
+	while (*--end == ' ') {
+	}
+
+	if (*end == '/') {
+		char *filter_start;
+
+		filter_start = strchr(separator2, '/');
+		if (filter_start == end)
+			return -1;
+
+		ptr = malloc(end - filter_start + 2);
+		if (!ptr)
+			return -1;
+
+		memcpy(ptr, filter_start, end - filter_start + 1);
+		ptr[end - filter_start + 1] = '\0';
+
+		*filter = ptr;
+
+		end = filter_start;
+	} else {
+		*filter = NULL;
+		end++;
+	}
+
+	/* find event */
+	ptr = malloc(end - separator);
+	if (!ptr)
+		return -1;
+
+	memcpy(ptr, separator + 1, end - separator - 1);
+	ptr[end - separator - 1] = '\0';
+
+	strim(ptr);
+	*event = ptr;
+
+	return 0;
+}
+
+static char *get_next_eventdef(char *str)
+{
+	char *separator;
+
+	separator = strchr(str, ',');
+	if (!separator)
+		return str + strlen(str);
+
+	*separator = '\0';
+	return separator + 1;
+}
+
+ktap_string *ktapc_parse_eventdef(ktap_string *eventdef)
+{
+	const char *def_str = getstr(eventdef);
+	char *str = strdup(def_str);
+	char *sys, *event, *filter, *idstr, *g_idstr, *next;
+	ktap_string *ts;
+	int ret;
+
+	if (!ids_array) {
+		ids_array = malloc(IDS_ARRAY_SIZE);
+		if (!ids_array)
+			return NULL;
+	}
+
+	g_idstr = malloc(4096);
+	if (!g_idstr)
+		return NULL;
+
+	memset(g_idstr, 0, 4096);
+
+ parse_next_eventdef:
+	memset(ids_array, 0, IDS_ARRAY_SIZE);
+
+	next = get_next_eventdef(str);
+
+	if (get_sys_event_filter_str(str, &sys, &event, &filter))
+		goto error;
+
+	verbose_printf("parse_eventdef: sys[%s], event[%s], filter[%s]\n",
+		       sys, event, filter);
+
+	if (!strcmp(sys, "probe"))
+		ret = parse_events_add_probe(event);
+	else if (!strcmp(sys, "stapsdt"))
+		ret = parse_events_add_stapsdt(event);
+	else
+		ret = parse_events_add_tracepoint(sys, event);
+
+	if (ret)
+		goto error;
+
+	/* don't trace ftrace:function when all tracepoints enabled */
+	if (!strcmp(sys, "*"))
+		clear_id(1);
+
+	idstr = get_idstr(filter);
+	if (!idstr)
+		goto error;
+
+	str = next;
+
+	g_idstr = strcat(g_idstr, idstr);
+	g_idstr = strcat(g_idstr, ",");
+
+	if (*next != '\0')
+		goto parse_next_eventdef;
+
+	ts = ktapc_ts_new(g_idstr);
+	free(g_idstr);	
+
+	return ts;
+ error:
+	cleanup_event_resources();
+	return NULL;
+}
+
+void cleanup_event_resources(void)
+{
+	struct probe_list *pl;
+	const char *path;
+	char probe_event[32] = {0};
+	int fd, ret;
+
+	for (pl = probe_list_head; pl; pl = pl->next) {
+		if (pl->type == KPROBE_EVENT) {
+			path = KPROBE_EVENTS_PATH;
+			snprintf(probe_event, 32, "-:kprobes/kp%d", pl->kp_seq);
+		} else if (pl->type == UPROBE_EVENT) {
+			path = UPROBE_EVENTS_PATH;
+			snprintf(probe_event, 32, "-:uprobes/kp%d", pl->kp_seq);
+		} else {
+			fprintf(stderr, "Cannot cleanup event type %d\n", pl->type);
+			continue;
+		}
+
+		fd = open(path, O_WRONLY);
+		if (fd < 0) {
+			fprintf(stderr, "Cannot open %s\n", UPROBE_EVENTS_PATH);
+			continue;
+		}
+
+		ret = write(fd, probe_event, strlen(probe_event));
+		if (ret <= 0) {
+			fprintf(stderr, "Cannot write %s to %s\n", probe_event,
+					path);
+			close(fd);
+			continue;
+		}
+
+		close(fd);
+	}
+}
+
diff --git a/drivers/staging/ktap/userspace/ktapc.h b/drivers/staging/ktap/userspace/ktapc.h
new file mode 100644
index 000000000000..879cd29d8c94
--- /dev/null
+++ b/drivers/staging/ktap/userspace/ktapc.h
@@ -0,0 +1,376 @@
+/*
+ * ktapc.h
+ * only can be included by userspace compiler
+ */
+
+#include <ctype.h>
+
+typedef int bool;
+#define false 0
+#define true 1
+
+#define MAX_INT         ((int)(~0U>>1))
+#define UCHAR_MAX	255
+
+#define MAX_SIZET  ((size_t)(~(size_t)0)-2)
+
+#define KTAP_ERRSYNTAX 3
+
+/*
+ * KTAP_IDSIZE gives the maximum size for the description of the source
+ * of a function in debug information.
+ * CHANGE it if you want a different size.
+ */
+#define KTAP_IDSIZE      60
+
+
+#define FIRST_RESERVED  257
+
+/*
+ * maximum depth for nested C calls and syntactical nested non-terminals
+ * in a program. (Value must fit in an unsigned short int.)
+ */
+#define KTAP_MAXCCALLS          200
+
+#define KTAP_MULTRET     (-1)
+
+
+#define SHRT_MAX	UCHAR_MAX
+
+#define MAXUPVAL   UCHAR_MAX
+
+
+/* maximum stack for a ktap function */
+#define MAXSTACK        250
+
+#define islalpha(c)   (isalpha(c) || (c) == '_')
+#define islalnum(c)   (isalnum(c) || (c) == '_')
+
+#define isreserved(s) ((s)->tsv.tt == KTAP_TSHRSTR && (s)->tsv.extra > 0)
+
+#define ktap_numeq(a,b)		((a)==(b))
+#define ktap_numisnan(L,a)	(!ktap_numeq((a), (a)))
+
+#define ktap_numunm(a)		(-(a))
+
+/*
+ * ** Comparison and arithmetic functions
+ * */
+
+#define KTAP_OPADD       0       /* ORDER TM */
+#define KTAP_OPSUB       1
+#define KTAP_OPMUL       2
+#define KTAP_OPDIV       3
+#define KTAP_OPMOD       4
+#define KTAP_OPPOW       5
+#define KTAP_OPUNM       6
+
+#define KTAP_OPEQ        0
+#define KTAP_OPLT        1
+#define KTAP_OPLE        2
+
+
+/*
+ * WARNING: if you change the order of this enumeration,
+ * grep "ORDER RESERVED"
+ */
+enum RESERVED {
+	/* terminal symbols denoted by reserved words */
+	TK_TRACE = FIRST_RESERVED, TK_TRACE_END,
+	TK_ARGEVENT, TK_ARGNAME,
+	TK_ARG1, TK_ARG2, TK_ARG3, TK_ARG4, TK_ARG5, TK_ARG6, TK_ARG7, TK_ARG8,
+	TK_ARG9, TK_PROFILE, TK_TICK,
+	TK_AND, TK_BREAK,
+	TK_DO, TK_ELSE, TK_ELSEIF, TK_END, TK_FALSE, TK_FOR, TK_FUNCTION,
+	TK_GOTO, TK_IF, TK_IN, TK_LOCAL, TK_NIL, TK_NOT, TK_OR, TK_REPEAT,
+	TK_RETURN, TK_THEN, TK_TRUE, TK_UNTIL, TK_WHILE,
+	/* other terminal symbols */
+	TK_CONCAT, TK_DOTS, TK_EQ, TK_GE, TK_LE, TK_NE, TK_INCR, TK_DBCOLON,
+	TK_EOS, TK_NUMBER, TK_NAME, TK_STRING
+};
+
+/* number of reserved words */
+#define NUM_RESERVED    ((int)(TK_WHILE-FIRST_RESERVED + 1))
+
+#define EOZ     (0)                    /* end of stream */
+
+typedef union {
+	ktap_number r;
+	ktap_string *ts;
+} ktap_seminfo;  /* semantics information */
+
+
+typedef struct ktap_token {
+	int token;
+	ktap_seminfo seminfo;
+} ktap_token;
+
+typedef struct ktap_mbuffer {
+	char *buffer;
+	size_t n;
+	size_t buffsize;
+} ktap_mbuffer;
+
+#define mbuff_init(buff)	((buff)->buffer = NULL, (buff)->buffsize = 0)
+#define mbuff(buff)		((buff)->buffer)
+#define mbuff_reset(buff)	((buff)->n = 0, memset((buff)->buffer, 0, (buff)->buffsize))
+#define mbuff_len(buff)		((buff)->n)
+#define mbuff_size(buff)	((buff)->buffsize)
+
+#define mbuff_resize(buff, size) \
+	(ktapc_realloc((buff)->buffer, (buff)->buffsize, size, char), \
+	(buff)->buffsize = size)
+
+#define mbuff_free(buff)        mbuff_resize(buff, 0)
+
+
+/*
+ * state of the lexer plus state of the parser when shared by all
+ * functions
+ */
+typedef struct ktap_lexstate {
+	char *ptr; /* source file reading position */
+	int current;  /* current character (charint) */
+	int linenumber;  /* input line counter */
+	int lastline;  /* line of last token `consumed' */
+	ktap_token t;  /* current token */
+	ktap_token lookahead;  /* look ahead token */
+	struct ktap_funcstate *fs;  /* current function (parser) */
+	ktap_mbuffer *buff;  /* buffer for tokens */
+	struct ktap_dyndata *dyd;  /* dynamic structures used by the parser */
+	ktap_string *source;  /* current source name */
+	ktap_string *envn;  /* environment variable name */
+	char decpoint;  /* locale decimal point */
+	int nCcalls;
+} ktap_lexstate;
+
+
+/*
+ * Expression descriptor
+ */
+typedef enum {
+	VVOID,        /* no value */
+	VNIL,
+	VTRUE,
+	VFALSE,
+	VK,           /* info = index of constant in `k' */
+	VKNUM,        /* nval = numerical value */
+	VNONRELOC,    /* info = result register */
+	VLOCAL,       /* info = local register */
+	VUPVAL,       /* info = index of upvalue in 'upvalues' */
+	VINDEXED,     /* t = table register/upvalue; idx = index R/K */
+	VJMP,         /* info = instruction pc */
+	VRELOCABLE,   /* info = instruction pc */
+	VCALL,        /* info = instruction pc */
+	VVARARG,      /* info = instruction pc */
+	VEVENT,
+	VEVENTNAME,
+	VEVENTARG,
+} expkind;
+
+
+#define vkisvar(k)      (VLOCAL <= (k) && (k) <= VINDEXED)
+#define vkisinreg(k)    ((k) == VNONRELOC || (k) == VLOCAL)
+
+typedef struct ktap_expdesc {
+	expkind k;
+	union {
+		struct {  /* for indexed variables (VINDEXED) */
+			short idx;  /* index (R/K) */
+			u8 t;  /* table (register or upvalue) */
+			u8 vt;  /* whether 't' is register (VLOCAL) or upvalue (VUPVAL) */
+		} ind;
+		int info;  /* for generic use */
+		ktap_number nval;  /* for VKNUM */
+	} u;
+	int t;  /* patch list of `exit when true' */
+	int f;  /* patch list of `exit when false' */
+} ktap_expdesc;
+
+
+typedef struct ktap_vardesc {
+	short idx;  /* variable index in stack */
+} ktap_vardesc;
+
+
+/* description of pending goto statements and label statements */
+typedef struct ktap_labeldesc {
+	ktap_string *name;  /* label identifier */
+	int pc;  /* position in code */
+	int line;  /* line where it appeared */
+	u8 nactvar;  /* local level where it appears in current block */
+} ktap_labeldesc;
+
+
+/* list of labels or gotos */
+typedef struct ktap_labellist {
+	ktap_labeldesc *arr;  /* array */
+	int n;  /* number of entries in use */
+	int size;  /* array size */
+} ktap_labellist;
+
+
+/* dynamic structures used by the parser */
+typedef struct ktap_dyndata {
+	struct {  /* list of active local variables */
+		ktap_vardesc *arr;
+		int n;
+		int size;
+	} actvar;
+	ktap_labellist gt;  /* list of pending gotos */
+	ktap_labellist label;   /* list of active labels */
+} ktap_dyndata;
+
+
+/* control of blocks */
+struct ktap_blockcnt;  /* defined in lparser.c */
+
+
+/* state needed to generate code for a given function */
+typedef struct ktap_funcstate {
+	ktap_proto *f;  /* current function header */
+	ktap_table *h;  /* table to find (and reuse) elements in `k' */
+	struct ktap_funcstate *prev;  /* enclosing function */
+	struct ktap_lexstate *ls;  /* lexical state */
+	struct ktap_blockcnt *bl;  /* chain of current blocks */
+	int pc;  /* next position to code (equivalent to `ncode') */
+	int lasttarget;   /* 'label' of last 'jump label' */
+	int jpc;  /* list of pending jumps to `pc' */
+	int nk;  /* number of elements in `k' */
+	int np;  /* number of elements in `p' */
+	int firstlocal;  /* index of first local var (in ktap_dyndata array) */
+	short nlocvars;  /* number of elements in 'f->locvars' */
+	u8 nactvar;  /* number of active local variables */
+	u8 nups;  /* number of upvalues */
+	u8 freereg;  /* first free register */
+} ktap_funcstate;
+
+
+/*
+ * Marks the end of a patch list. It is an invalid value both as an absolute
+ * address, and as a list link (would link an element to itself).
+ */
+#define NO_JUMP (-1)
+
+
+/*
+ * grep "ORDER OPR" if you change these enums  (ORDER OP)
+ */
+typedef enum BinOpr {
+	OPR_ADD, OPR_SUB, OPR_MUL, OPR_DIV, OPR_MOD, OPR_POW,
+	OPR_CONCAT,
+	OPR_EQ, OPR_LT, OPR_LE,
+	OPR_NE, OPR_GT, OPR_GE,
+	OPR_AND, OPR_OR,
+	OPR_NOBINOPR
+} BinOpr;
+
+
+typedef enum UnOpr { OPR_MINUS, OPR_NOT, OPR_LEN, OPR_NOUNOPR } UnOpr;
+
+
+#define getcode(fs,e)   ((fs)->f->code[(e)->u.info])
+
+#define codegen_codeAsBx(fs,o,A,sBx)       codegen_codeABx(fs,o,A,(sBx)+MAXARG_sBx)
+
+#define codegen_setmultret(fs,e)   codegen_setreturns(fs, e, KTAP_MULTRET)
+
+#define codegen_jumpto(fs,t)       codegen_patchlist(fs, codegen_jump(fs), t)
+
+
+#define ktapc_realloc(v, osize, nsize, t) \
+        ((v) = (t *)ktapc_reallocv(v, osize * sizeof(t), nsize * sizeof(t)))
+
+#define ktapc_reallocvector(v,oldn,n,t)	ktapc_realloc(v,oldn,n,t)
+
+
+#define ktapc_growvector(v,nelems,size,t,limit,e) \
+          if ((nelems)+1 > (size)) \
+            ((v)=(t *)ktapc_growaux(v,&(size),sizeof(t),limit,e))
+
+
+void lex_init();
+ktap_string *lex_newstring(ktap_lexstate *ls, const char *str, size_t l);
+const char *lex_token2str(ktap_lexstate *ls, int token);
+void lex_syntaxerror(ktap_lexstate *ls, const char *msg);
+void lex_setinput(ktap_lexstate *ls, char *ptr, ktap_string *source, int firstchar);
+void lex_next(ktap_lexstate *ls);
+int lex_lookahead(ktap_lexstate *ls);
+void lex_read_string_until(ktap_lexstate *ls, int c);
+ktap_closure *ktapc_parser(char *pos, const char *name);
+ktap_string *ktapc_ts_new(const char *str);
+int ktapc_ts_eqstr(ktap_string *a, ktap_string *b);
+ktap_string *ktapc_ts_newlstr(const char *str, size_t l);
+ktap_proto *ktapc_newproto();
+ktap_table *ktapc_table_new();
+const ktap_value *ktapc_table_get(ktap_table *t, const ktap_value *key);
+void ktapc_table_setvalue(ktap_table *t, const ktap_value *key, ktap_value *val);
+ktap_closure *ktapc_newlclosure(int n);
+char *ktapc_sprintf(const char *fmt, ...);
+
+void *ktapc_reallocv(void *block, size_t osize, size_t nsize);
+void *ktapc_growaux(void *block, int *size, size_t size_elems, int limit,
+		    const char *what);
+
+void ktapio_exit(void);
+int ktapio_create(const char *output_filename);
+
+ktap_string *ktapc_parse_eventdef(ktap_string *eventdef);
+void cleanup_event_resources(void);
+
+extern int verbose;
+#define verbose_printf(...) \
+	if (verbose)	\
+		printf("[verbose] " __VA_ARGS__);
+
+#define ktapc_equalobj(t1, t2)	kp_equalobjv(NULL, t1, t2)
+
+
+#include "../include/ktap_opcodes.h"
+
+int codegen_stringK(ktap_funcstate *fs, ktap_string *s);
+void codegen_indexed(ktap_funcstate *fs, ktap_expdesc *t, ktap_expdesc *k);
+void codegen_setreturns(ktap_funcstate *fs, ktap_expdesc *e, int nresults);
+void codegen_reserveregs(ktap_funcstate *fs, int n);
+void codegen_exp2nextreg(ktap_funcstate *fs, ktap_expdesc *e);
+void codegen_nil(ktap_funcstate *fs, int from, int n);
+void codegen_patchlist(ktap_funcstate *fs, int list, int target);
+void codegen_patchclose(ktap_funcstate *fs, int list, int level);
+int codegen_jump(ktap_funcstate *fs);
+void codegen_patchtohere(ktap_funcstate *fs, int list);
+int codegen_codeABx(ktap_funcstate *fs, OpCode o, int a, unsigned int bc);
+void codegen_ret(ktap_funcstate *fs, int first, int nret);
+void codegen_exp2anyregup(ktap_funcstate *fs, ktap_expdesc *e);
+void codegen_exp2val(ktap_funcstate *fs, ktap_expdesc *e);
+int codegen_exp2RK(ktap_funcstate *fs, ktap_expdesc *e);
+int codegen_codeABC(ktap_funcstate *fs, OpCode o, int a, int b, int c);
+void codegen_setlist(ktap_funcstate *fs, int base, int nelems, int tostore);
+void codegen_fixline (ktap_funcstate *fs, int line);
+void codegen_dischargevars(ktap_funcstate *fs, ktap_expdesc *e);
+void codegen_self(ktap_funcstate *fs, ktap_expdesc *e, ktap_expdesc *key);
+void codegen_prefix(ktap_funcstate *fs, UnOpr op, ktap_expdesc *e, int line);
+void codegen_infix(ktap_funcstate *fs, BinOpr op, ktap_expdesc *v);
+void codegen_posfix(ktap_funcstate *fs, BinOpr op, ktap_expdesc *e1, ktap_expdesc *e2, int line);
+void codegen_setoneret(ktap_funcstate *fs, ktap_expdesc *e);
+void codegen_storevar(ktap_funcstate *fs, ktap_expdesc *var, ktap_expdesc *ex);
+void codegen_storeincr(ktap_funcstate *fs, ktap_expdesc *var, ktap_expdesc *ex);
+void codegen_goiftrue(ktap_funcstate *fs, ktap_expdesc *e);
+int codegen_getlabel(ktap_funcstate *fs);
+int codegen_codek(ktap_funcstate *fs, int reg, int k);
+int codegen_numberK(ktap_funcstate *fs, ktap_number r);
+void codegen_checkstack(ktap_funcstate *fs, int n);
+void codegen_goiffalse(ktap_funcstate *fs, ktap_expdesc *e);
+void codegen_concat(ktap_funcstate *fs, int *l1, int l2);
+int codegen_exp2anyreg(ktap_funcstate *fs, ktap_expdesc *e);
+
+typedef int (*ktap_writer)(const void* p, size_t sz, void* ud);
+int ktapc_dump(const ktap_proto *f, ktap_writer w, void *data, int strip);
+
+void ktapc_chunkid(char *out, const char *source, size_t bufflen);
+int ktapc_str2d(const char *s, size_t len, ktap_number *result);
+int ktapc_hexavalue(int c);
+ktap_number ktapc_arith(int op, ktap_number v1, ktap_number v2);
+int ktapc_int2fb(unsigned int x);
+
+bool strglobmatch(const char *str, const char *pat);
+
diff --git a/drivers/staging/ktap/userspace/ktapio.c b/drivers/staging/ktap/userspace/ktapio.c
new file mode 100644
index 000000000000..f9bcab461f2a
--- /dev/null
+++ b/drivers/staging/ktap/userspace/ktapio.c
@@ -0,0 +1,108 @@
+/*
+ * ktapio.c - ring buffer transport in userspace
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/poll.h>
+#include <sys/signal.h>
+#include <fcntl.h>
+#include <pthread.h>
+
+#define MAX_BUFLEN  131072
+#define PATH_MAX 128
+
+#define handle_error(str) do { perror(str); exit(-1); } while(0)
+
+extern pid_t ktap_pid;
+
+void sigfunc(int signo)
+{
+	/* should not not reach here */
+}
+
+static void block_sigint()
+{
+	sigset_t mask;
+
+	sigemptyset(&mask);
+	sigaddset(&mask, SIGINT);
+
+	pthread_sigmask(SIG_BLOCK, &mask, NULL);
+}
+
+static void *reader_thread(void *data)
+{
+	char buf[MAX_BUFLEN];
+	char filename[PATH_MAX];
+	const char *output = data; 
+	int failed = 0, fd, out_fd, len;
+
+	block_sigint();
+
+	if (output) {
+		out_fd = open(output, O_CREAT | O_WRONLY | O_TRUNC,
+					S_IRUSR|S_IWUSR);
+		if (out_fd < 0) {
+			fprintf(stderr, "Cannot open output file %s\n", output);
+			return NULL;
+		}
+	} else
+		out_fd = 2;
+
+	sprintf(filename, "/sys/kernel/debug/ktap/trace_pipe_%d", ktap_pid);
+
+ open_again:
+	fd = open(filename, O_RDONLY);
+	if (fd < 0) {
+		usleep(10000);
+
+		if (failed++ == 10) {
+			fprintf(stderr, "Cannot open file %s\n", filename);
+			return NULL;
+		}
+		goto open_again;
+	}
+
+	while ((len = read(fd, buf, sizeof(buf))) > 0)
+		write(out_fd, buf, len);
+
+	close(fd);
+	close(out_fd);
+
+	return NULL;
+}
+
+int ktapio_create(const char *output)
+{
+	pthread_t reader;
+
+	signal(SIGINT, sigfunc);
+
+	if (pthread_create(&reader, NULL, reader_thread, (void *)output) < 0)
+		handle_error("pthread_create reader_thread failed\n");
+
+	return 0;
+}
+
diff --git a/drivers/staging/ktap/userspace/lex.c b/drivers/staging/ktap/userspace/lex.c
new file mode 100644
index 000000000000..484dd7fdafc3
--- /dev/null
+++ b/drivers/staging/ktap/userspace/lex.c
@@ -0,0 +1,622 @@
+/*
+ * lex.c - ktap lexical analyzer
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
+ *  - The part of code in this file is copied from lua initially.
+ *  - lua's MIT license is compatible with GPL.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <locale.h>
+#include "../include/ktap_types.h"
+#include "ktapc.h"
+
+#define next(ls) (ls->current = *ls->ptr++)
+
+#define currIsNewline(ls)	(ls->current == '\n' || ls->current == '\r')
+
+#define KTAP_MINBUFFER   32
+
+/* ORDER RESERVED */
+static const char *const ktap_tokens [] = {
+	"trace", "trace_end", "argevent", "argname",
+	"arg1", "arg2", "arg3", "arg4", "arg5", "arg6", "arg7", "arg9", "arg9",
+	"profile", "tick",
+	"and", "break", "do", "else", "elseif",
+	"end", "false", "for", "function", "goto", "if",
+	"in", "local", "nil", "not", "or", "repeat",
+	"return", "then", "true", "until", "while",
+	"..", "...", "==", ">=", "<=", "!=", "+=", "::", "<eof>",
+	"<number>", "<name>", "<string>"
+};
+
+#define save_and_next(ls) (save(ls, ls->current), next(ls))
+
+static void lexerror(ktap_lexstate *ls, const char *msg, int token);
+
+static void save(ktap_lexstate *ls, int c)
+{
+	ktap_mbuffer *b = ls->buff;
+	if (mbuff_len(b) + 1 > mbuff_size(b)) {
+		size_t newsize;
+		if (mbuff_size(b) >= MAX_SIZET / 2)
+			lexerror(ls, "lexical element too long", 0);
+		newsize = mbuff_size(b) * 2;
+		mbuff_resize(b, newsize);
+	}
+	b->buffer[mbuff_len(b)++] = (char)c;
+}
+
+void lex_init()
+{
+	int i;
+	for (i = 0; i < NUM_RESERVED; i++) {
+		ktap_string *ts = ktapc_ts_new(ktap_tokens[i]);
+		ts->tsv.extra = (u8)(i+1);  /* reserved word */
+	}
+}
+
+const char *lex_token2str(ktap_lexstate *ls, int token)
+{
+	if (token < FIRST_RESERVED) {
+		ktap_assert(token == (unsigned char)token);
+		return (isprint(token)) ? ktapc_sprintf(KTAP_QL("%c"), token) :
+			ktapc_sprintf("char(%d)", token);
+	} else {
+		const char *s = ktap_tokens[token - FIRST_RESERVED];
+		if (token < TK_EOS)
+			return ktapc_sprintf(KTAP_QS, s);
+		else
+			return s;
+	}
+}
+
+static const char *txtToken(ktap_lexstate *ls, int token)
+{
+	switch (token) {
+	case TK_NAME:
+	case TK_STRING:
+	case TK_NUMBER:
+		save(ls, '\0');
+		return ktapc_sprintf(KTAP_QS, mbuff(ls->buff));
+	default:
+		return lex_token2str(ls, token);
+	}
+}
+
+static void lexerror(ktap_lexstate *ls, const char *msg, int token)
+{
+	char buff[KTAP_IDSIZE];
+	char *newmsg;
+
+	ktapc_chunkid(buff, getstr(ls->source), KTAP_IDSIZE);
+	newmsg = ktapc_sprintf("%s:%d: %s", buff, ls->linenumber, msg);
+	if (token)
+		newmsg = ktapc_sprintf("%s near %s", newmsg, txtToken(ls, token));
+	printf("lexerror: %s\n", newmsg);
+	exit(EXIT_FAILURE);
+}
+
+void lex_syntaxerror(ktap_lexstate *ls, const char *msg)
+{
+	lexerror(ls, msg, ls->t.token);
+}
+
+/*
+ * creates a new string and anchors it in function's table so that
+ * it will not be collected until the end of the function's compilation
+ * (by that time it should be anchored in function's prototype)
+ */
+ktap_string *lex_newstring(ktap_lexstate *ls, const char *str, size_t l)
+{
+	const ktap_value *o;  /* entry for `str' */
+	ktap_value val;  /* entry for `str' */
+	ktap_value tsv;
+	ktap_string *ts = ktapc_ts_newlstr(str, l);  /* create new string */
+	setsvalue(&tsv, ts); 
+	o = ktapc_table_get(ls->fs->h, &tsv);
+	if (ttisnil(o)) {  /* not in use yet? (see 'addK') */
+		/* boolean value does not need GC barrier;
+		table has no metatable, so it does not need to invalidate cache */
+		setbvalue(&val, 1);  /* t[string] = true */
+		ktapc_table_setvalue(ls->fs->h, &tsv, &val);
+	}
+	return ts;
+}
+
+/*
+ * increment line number and skips newline sequence (any of
+ * \n, \r, \n\r, or \r\n)
+ */
+static void inclinenumber(ktap_lexstate *ls)
+{
+	int old = ls->current;
+	ktap_assert(currIsNewline(ls));
+	next(ls);  /* skip `\n' or `\r' */
+	if (currIsNewline(ls) && ls->current != old)
+		next(ls);  /* skip `\n\r' or `\r\n' */
+	if (++ls->linenumber >= MAX_INT)
+		lex_syntaxerror(ls, "chunk has too many lines");
+}
+
+void lex_setinput(ktap_lexstate *ls, char *ptr, ktap_string *source, int firstchar)
+{
+	ls->decpoint = '.';
+	ls->current = firstchar;
+	ls->lookahead.token = TK_EOS;  /* no look-ahead token */
+	ls->ptr = ptr;
+	ls->fs = NULL;
+	ls->linenumber = 1;
+	ls->lastline = 1;
+	ls->source = source;
+	ls->envn = ktapc_ts_new(KTAP_ENV);  /* create env name */
+	mbuff_resize(ls->buff, KTAP_MINBUFFER);  /* initialize buffer */
+}
+
+/*
+ * =======================================================
+ * LEXICAL ANALYZER
+ * =======================================================
+ */
+static int check_next(ktap_lexstate *ls, const char *set)
+{
+	if (ls->current == '\0' || !strchr(set, ls->current))
+		return 0;
+	save_and_next(ls);
+	return 1;
+}
+
+/*
+ * change all characters 'from' in buffer to 'to'
+ */
+static void buffreplace(ktap_lexstate *ls, char from, char to)
+{
+	size_t n = mbuff_len(ls->buff);
+	char *p = mbuff(ls->buff);
+	while (n--)
+		if (p[n] == from) p[n] = to;
+}
+
+#if !defined(getlocaledecpoint)
+#define getlocaledecpoint()	(localeconv()->decimal_point[0])
+#endif
+
+#define mbuff2d(b,e)	ktapc_str2d(mbuff(b), mbuff_len(b) - 1, e)
+
+/*
+ * in case of format error, try to change decimal point separator to
+ * the one defined in the current locale and check again
+ */
+static void trydecpoint(ktap_lexstate *ls, ktap_seminfo *seminfo)
+{
+	char old = ls->decpoint;
+	ls->decpoint = getlocaledecpoint();
+	buffreplace(ls, old, ls->decpoint);  /* try new decimal separator */
+	if (!mbuff2d(ls->buff, &seminfo->r)) {
+		/* format error with correct decimal point: no more options */
+		buffreplace(ls, ls->decpoint, '.');  /* undo change (for error message) */
+		lexerror(ls, "malformed number", TK_NUMBER);
+	}
+}
+
+/*
+ * this function is quite liberal in what it accepts, as 'ktapc_str2d'
+ * will reject ill-formed numerals.
+ */
+static void read_numeral(ktap_lexstate *ls, ktap_seminfo *seminfo)
+{
+	const char *expo = "Ee";
+	int first = ls->current;
+
+	ktap_assert(isdigit(ls->current));
+	save_and_next(ls);
+	if (first == '0' && check_next(ls, "Xx"))  /* hexadecimal? */
+		expo = "Pp";
+	for (;;) {
+		if (check_next(ls, expo))  /* exponent part? */
+			check_next(ls, "+-");  /* optional exponent sign */
+		if (isxdigit(ls->current) || ls->current == '.')
+			save_and_next(ls);
+		else
+			break;
+	}
+	save(ls, '\0');
+	buffreplace(ls, '.', ls->decpoint);  /* follow locale for decimal point */
+	if (!mbuff2d(ls->buff, &seminfo->r))  /* format error? */
+		trydecpoint(ls, seminfo); /* try to update decimal point separator */
+}
+
+/*
+ * skip a sequence '[=*[' or ']=*]' and return its number of '='s or
+ * -1 if sequence is malformed
+ */
+static int skip_sep(ktap_lexstate *ls)
+{
+	int count = 0;
+	int s = ls->current;
+
+	ktap_assert(s == '[' || s == ']');
+	save_and_next(ls);
+	while (ls->current == '=') {
+		save_and_next(ls);
+		count++;
+	}
+	return (ls->current == s) ? count : (-count) - 1;
+}
+
+static void read_long_string(ktap_lexstate *ls, ktap_seminfo *seminfo, int sep)
+{
+	save_and_next(ls);  /* skip 2nd `[' */
+	if (currIsNewline(ls))  /* string starts with a newline? */
+		inclinenumber(ls);  /* skip it */
+	for (;;) {
+		switch (ls->current) {
+		case EOZ:
+			lexerror(ls, (seminfo) ? "unfinished long string" :
+				"unfinished long comment", TK_EOS);
+			break;  /* to avoid warnings */
+		case ']': {
+			if (skip_sep(ls) == sep) {
+				save_and_next(ls);  /* skip 2nd `]' */
+				goto endloop;
+			}
+			break;
+		}
+		case '\n':
+		case '\r': {
+			save(ls, '\n');
+			inclinenumber(ls);
+			/* avoid wasting space */
+			if (!seminfo)
+				mbuff_reset(ls->buff);
+			break;
+		}
+		default: {
+			if (seminfo)
+				save_and_next(ls);
+			else
+				next(ls);
+		}
+		}
+	}
+
+ endloop:
+	if (seminfo)
+		seminfo->ts = lex_newstring(ls, mbuff(ls->buff) + (2 + sep),
+			mbuff_len(ls->buff) - 2*(2 + sep));
+}
+
+static void escerror(ktap_lexstate *ls, int *c, int n, const char *msg)
+{
+	int i;
+	mbuff_reset(ls->buff);  /* prepare error message */
+	save(ls, '\\');
+	for (i = 0; i < n && c[i] != EOZ; i++)
+		save(ls, c[i]);
+	lexerror(ls, msg, TK_STRING);
+}
+
+static int readhexaesc(ktap_lexstate *ls)
+{
+	int c[3], i;  /* keep input for error message */
+	int r = 0;  /* result accumulator */
+	c[0] = 'x';  /* for error message */
+	for (i = 1; i < 3; i++) {  /* read two hexa digits */
+		c[i] = next(ls);
+		if (!isxdigit(c[i]))
+			escerror(ls, c, i + 1, "hexadecimal digit expected");
+		r = (r << 4) + ktapc_hexavalue(c[i]);
+	}
+	return r;
+}
+
+static int readdecesc(ktap_lexstate *ls)
+{
+	int c[3], i;
+	int r = 0;  /* result accumulator */
+	for (i = 0; i < 3 && isdigit(ls->current); i++) {  /* read up to 3 digits */
+		c[i] = ls->current;
+		r = 10*r + c[i] - '0';
+		next(ls);
+	}
+	if (r > UCHAR_MAX)
+		escerror(ls, c, i, "decimal escape too large");
+	return r;
+}
+
+static void read_string(ktap_lexstate *ls, int del, ktap_seminfo *seminfo)
+{
+	save_and_next(ls);  /* keep delimiter (for error messages) */
+	while (ls->current != del) {
+		switch (ls->current) {
+		case EOZ:
+			lexerror(ls, "unfinished string", TK_EOS);
+			break;  /* to avoid warnings */
+		case '\n':
+		case '\r':
+			lexerror(ls, "unfinished string", TK_STRING);
+			break;  /* to avoid warnings */
+		case '\\': {  /* escape sequences */
+			int c;  /* final character to be saved */
+			next(ls);  /* do not save the `\' */
+			switch (ls->current) {
+			case 'a': c = '\a'; goto read_save;
+			case 'b': c = '\b'; goto read_save;
+			case 'f': c = '\f'; goto read_save;
+			case 'n': c = '\n'; goto read_save;
+			case 'r': c = '\r'; goto read_save;
+			case 't': c = '\t'; goto read_save;
+			case 'v': c = '\v'; goto read_save;
+			case 'x': c = readhexaesc(ls); goto read_save;
+			case '\n': case '\r':
+				inclinenumber(ls); c = '\n'; goto only_save;
+			case '\\': case '\"': case '\'':
+				c = ls->current; goto read_save;
+			case EOZ: goto no_save;  /* will raise an error next loop */
+			case 'z': {  /* zap following span of spaces */
+				next(ls);  /* skip the 'z' */
+				while (isspace(ls->current)) {
+					if (currIsNewline(ls))
+						inclinenumber(ls);
+					else
+						next(ls);
+				}
+				goto no_save;
+			}
+			default: {
+				if (!isdigit(ls->current))
+					escerror(ls, &ls->current, 1, "invalid escape sequence");
+				/* digital escape \ddd */
+				c = readdecesc(ls);
+				goto only_save;
+			}
+			}
+ read_save:
+			next(ls);  /* read next character */
+ only_save:
+			save(ls, c);  /* save 'c' */
+ no_save:
+			break;
+		}
+		default:
+			save_and_next(ls);
+		}
+	}
+	save_and_next(ls);  /* skip delimiter */
+	seminfo->ts = lex_newstring(ls, mbuff(ls->buff) + 1, mbuff_len(ls->buff) - 2);
+}
+
+static int llex(ktap_lexstate *ls, ktap_seminfo *seminfo)
+{
+	mbuff_reset(ls->buff);
+
+	for (;;) {
+		switch (ls->current) {
+		case '\n': case '\r': {  /* line breaks */
+			inclinenumber(ls);
+			break;
+		}
+		case ' ': case '\f': case '\t': case '\v': {  /* spaces */
+			next(ls);
+			break;
+		}
+		case '#': {
+			while (!currIsNewline(ls) && ls->current != EOZ)
+				next(ls);  /* skip until end of line (or end of file) */
+			break;
+		}
+		#if 0
+		case '-': {  /* '-' or '--' (comment) */
+			next(ls);
+			if (ls->current != '-')
+				return '-';
+			/* else is a comment */
+			next(ls);
+			if (ls->current == '[') {  /* long comment? */
+				int sep = skip_sep(ls);
+				mbuff_reset(ls->buff);  /* `skip_sep' may dirty the buffer */
+				if (sep >= 0) {
+					read_long_string(ls, NULL, sep);  /* skip long comment */
+					mbuff_reset(ls->buff);  /* previous call may dirty the buff. */
+					break;
+				}
+			}
+			/* else short comment */
+			while (!currIsNewline(ls) && ls->current != EOZ)
+				next(ls);  /* skip until end of line (or end of file) */
+			break;
+		}
+		#endif
+		case '[': {  /* long string or simply '[' */
+			int sep = skip_sep(ls);
+			if (sep >= 0) {
+				read_long_string(ls, seminfo, sep);
+				return TK_STRING;
+			}
+			else if (sep == -1)
+				return '[';
+			else
+				lexerror(ls, "invalid long string delimiter", TK_STRING);
+		}
+		case '+': {
+			next(ls);
+			if (ls->current != '=')
+				return '+';
+			else {
+				next(ls);
+				return TK_INCR;
+			}
+		}
+		case '=': {
+			next(ls);
+			if (ls->current != '=')
+				return '=';
+			else {
+				next(ls);
+				return TK_EQ;
+			}
+		}
+		case '<': {
+			next(ls);
+			if (ls->current != '=')
+				return '<';
+			else {
+				next(ls);
+				return TK_LE;
+			}
+		}
+		case '>': {
+			next(ls);
+			if (ls->current != '=')
+				return '>';
+			else {
+				next(ls);
+				return TK_GE;
+			}
+		}
+		case '!': {
+			next(ls);
+			if (ls->current != '=')
+				return TK_NOT;
+			else {
+				next(ls);
+				return TK_NE;
+			}
+		}
+		case ':': {
+			next(ls);
+			if (ls->current != ':')
+				return ':';
+			else {
+				next(ls);
+				return TK_DBCOLON;
+			}
+		}
+		case '"': case '\'': {  /* short literal strings */
+			read_string(ls, ls->current, seminfo);
+			return TK_STRING;
+		}
+		case '.': {  /* '.', '..', '...', or number */
+			save_and_next(ls);
+			if (check_next(ls, ".")) {
+				if (check_next(ls, "."))
+					return TK_DOTS;   /* '...' */
+				else
+					return TK_CONCAT;   /* '..' */
+			}
+			else if (!isdigit(ls->current))
+				return '.';
+			/* else go through */
+		}
+		case '0': case '1': case '2': case '3': case '4':
+		case '5': case '6': case '7': case '8': case '9': {
+			read_numeral(ls, seminfo);
+			return TK_NUMBER;
+		}
+		case EOZ: {
+			return TK_EOS;
+		}
+		case '&': {
+			next(ls);
+			if (ls->current != '&')
+				return '&';
+			else {
+				next(ls);
+				return TK_AND;
+			}
+		} 
+		case '|': {
+			next(ls);
+			if (ls->current != '|')
+				return '|';
+			else {
+				next(ls);
+				return TK_OR;
+			}
+		} 
+		default: {
+			if (islalpha(ls->current)) {
+				/* identifier or reserved word? */
+				ktap_string *ts;
+				do {
+					save_and_next(ls);
+				} while (islalnum(ls->current));
+				ts = lex_newstring(ls, mbuff(ls->buff),
+							mbuff_len(ls->buff));
+				seminfo->ts = ts;
+				if (isreserved(ts))  /* reserved word? */
+					return ts->tsv.extra - 1 +
+						FIRST_RESERVED;
+				else {
+					return TK_NAME;
+				}
+			} else {  /* single-char tokens (+ - / ...) */
+				int c = ls->current;
+				next(ls);
+				return c;
+			}
+		}
+		}
+	}
+}
+
+void lex_read_string_until(ktap_lexstate *ls, int c)
+{
+	ktap_string *ts;
+	char errmsg[32];
+
+	mbuff_reset(ls->buff);
+
+	while (ls->current == ' ')
+		next(ls);
+
+	do {
+		save_and_next(ls);
+	} while (ls->current != c && ls->current != EOZ);
+
+	if (ls->current != c) {
+		sprintf(errmsg, "expect %c", c);
+		lexerror(ls, errmsg, 0);
+	}
+
+	ts = lex_newstring(ls, mbuff(ls->buff), mbuff_len(ls->buff));
+	ls->t.seminfo.ts = ts;
+	ls->t.token = TK_STRING;
+}
+
+void lex_next(ktap_lexstate *ls)
+{
+	ls->lastline = ls->linenumber;
+	if (ls->lookahead.token != TK_EOS) {  /* is there a look-ahead token? */
+		ls->t = ls->lookahead;  /* use this one */
+		ls->lookahead.token = TK_EOS;  /* and discharge it */
+	} else
+		ls->t.token = llex(ls, &ls->t.seminfo);  /* read next token */
+}
+
+int lex_lookahead(ktap_lexstate *ls)
+{
+	ktap_assert(ls->lookahead.token == TK_EOS);
+	ls->lookahead.token = llex(ls, &ls->lookahead.seminfo);
+	return ls->lookahead.token;
+}
+
diff --git a/drivers/staging/ktap/userspace/main.c b/drivers/staging/ktap/userspace/main.c
new file mode 100644
index 000000000000..2aa686a99914
--- /dev/null
+++ b/drivers/staging/ktap/userspace/main.c
@@ -0,0 +1,609 @@
+/*
+ * main.c - ktap compiler and loader entry
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <sched.h>
+#include <string.h>
+#include <signal.h>
+#include <stdarg.h>
+#include <sys/mman.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <math.h>
+
+#include "../include/ktap_types.h"
+#include "../include/ktap_opcodes.h"
+#include "ktapc.h"
+
+
+/*******************************************************************/
+
+void *ktapc_reallocv(void *block, size_t osize, size_t nsize)
+{
+	return kp_reallocv(NULL, block, osize, nsize);
+}
+
+ktap_closure *ktapc_newlclosure(int n)
+{
+	return kp_newlclosure(NULL, n);
+}
+
+ktap_proto *ktapc_newproto()
+{
+	return kp_newproto(NULL);
+}
+
+const ktap_value *ktapc_table_get(ktap_table *t, const ktap_value *key)
+{
+	return kp_table_get(t, key);
+}
+
+void ktapc_table_setvalue(ktap_table *t, const ktap_value *key, ktap_value *val)
+{
+	kp_table_setvalue(NULL, t, key, val);
+}
+
+ktap_table *ktapc_table_new()
+{
+	return kp_table_new(NULL);
+}
+
+ktap_string *ktapc_ts_newlstr(const char *str, size_t l)
+{
+	return kp_tstring_newlstr(NULL, str, l);
+}
+
+ktap_string *ktapc_ts_new(const char *str)
+{
+	return kp_tstring_new(NULL, str);
+}
+
+int ktapc_ts_eqstr(ktap_string *a, ktap_string *b)
+{
+	return kp_tstring_eqstr(a, b);
+}
+
+static void ktapc_runerror(const char *err_msg_fmt, ...)
+{
+	va_list ap;
+
+	fprintf(stderr, "ktapc_runerror\n");
+
+	va_start(ap, err_msg_fmt);
+	vfprintf(stderr, err_msg_fmt, ap);
+	va_end(ap);
+
+	exit(EXIT_FAILURE);
+}
+
+/*
+ * todo: memory leak here
+ */
+char *ktapc_sprintf(const char *fmt, ...)
+{
+	char *msg = malloc(128);
+
+	va_list argp;
+	va_start(argp, fmt);
+	vsprintf(msg, fmt, argp);
+	va_end(argp);
+	return msg;
+}
+
+
+#define MINSIZEARRAY	4
+
+void *ktapc_growaux(void *block, int *size, size_t size_elems, int limit,
+		    const char *what)
+{
+	void *newblock;
+	int newsize;
+
+	if (*size >= limit/2) {  /* cannot double it? */
+		if (*size >= limit)  /* cannot grow even a little? */
+			ktapc_runerror("too many %s (limit is %d)\n",
+					what, limit);
+		newsize = limit;  /* still have at least one free place */
+	} else {
+		newsize = (*size) * 2;
+		if (newsize < MINSIZEARRAY)
+			newsize = MINSIZEARRAY;  /* minimum size */
+	}
+
+	newblock = ktapc_reallocv(block, (*size) * size_elems, newsize * size_elems);
+	*size = newsize;  /* update only when everything else is OK */
+	return newblock;
+}
+
+/*************************************************************************/
+
+#define print_base(i) \
+	do {	\
+		if (i < f->sizelocvars) /* it's a localvars */ \
+			printf("%s", getstr(f->locvars[i].varname));  \
+		else \
+			printf("base + %d", i);	\
+	} while (0)
+
+#define print_RKC(instr)	\
+	do {	\
+		if (ISK(GETARG_C(instr))) \
+			kp_showobj(NULL, k + INDEXK(GETARG_C(instr))); \
+		else \
+			print_base(GETARG_C(instr)); \
+	} while (0)
+
+static void decode_instruction(ktap_proto *f, int instr)
+{
+	int opcode = GET_OPCODE(instr);
+	ktap_value *k;
+
+	k = f->k;
+
+	printf("%.8x\t", instr);
+	printf("%s\t", ktap_opnames[opcode]);
+
+	switch (opcode) {
+	case OP_GETTABUP:
+		print_base(GETARG_A(instr));
+		printf(" <- ");
+
+		if (GETARG_B(instr) == 0)
+			printf("global");
+		else
+			printf("upvalues[%d]", GETARG_B(instr));
+
+		printf("{"); print_RKC(instr); printf("}");
+
+		break;
+	case OP_GETTABLE:
+		print_base(GETARG_A(instr));
+		printf(" <- ");
+
+		print_base(GETARG_B(instr));
+
+		printf("{");
+		print_RKC(instr);
+		printf("}");
+		break;
+	case OP_LOADK:
+		printf("\t");
+		print_base(GETARG_A(instr));
+		printf(" <- ");
+
+		kp_showobj(NULL, k + GETARG_Bx(instr));
+		break;
+	case OP_CALL:
+		printf("\t");
+		print_base(GETARG_A(instr));
+		break;
+	case OP_JMP:
+		printf("\t%d", GETARG_sBx(instr));
+		break;
+	default:
+		break;
+	}
+
+	printf("\n");
+}
+
+static int function_nr = 0;
+
+/* this is a debug function used for check bytecode chunk file */
+static void dump_function(int level, ktap_proto *f)
+{
+	int i;
+
+	printf("\n----------------------------------------------------\n");
+	printf("function %d [level %d]:\n", function_nr++, level);
+	printf("linedefined: %d\n", f->linedefined);
+	printf("lastlinedefined: %d\n", f->lastlinedefined);
+	printf("numparams: %d\n", f->numparams);
+	printf("is_vararg: %d\n", f->is_vararg);
+	printf("maxstacksize: %d\n", f->maxstacksize);
+	printf("source: %s\n", getstr(f->source));
+	printf("sizelineinfo: %d \t", f->sizelineinfo);
+	for (i = 0; i < f->sizelineinfo; i++)
+		printf("%d ", f->lineinfo[i]);
+	printf("\n");
+
+	printf("sizek: %d\n", f->sizek);
+	for (i = 0; i < f->sizek; i++) {
+		switch(f->k[i].type) {
+		case KTAP_TNIL:
+			printf("\tNIL\n");
+			break;
+		case KTAP_TBOOLEAN:
+			printf("\tBOOLEAN: ");
+			printf("%d\n", f->k[i].val.b);
+			break;
+		case KTAP_TNUMBER:
+			printf("\tTNUMBER: ");
+			printf("%ld\n", f->k[i].val.n);
+			break;
+		case KTAP_TSTRING:
+			printf("\tTSTRING: ");
+			printf("%s\n", svalue(&(f->k[i])));
+
+			break;
+		default:
+			printf("\terror: unknow constant type\n");
+		}
+	}
+
+	printf("sizelocvars: %d\n", f->sizelocvars);
+	for (i = 0; i < f->sizelocvars; i++) {
+		printf("\tlocvars: %s startpc: %d endpc: %d\n",
+			getstr(f->locvars[i].varname), f->locvars[i].startpc,
+			f->locvars[i].endpc);
+	}
+
+	printf("sizeupvalues: %d\n", f->sizeupvalues);
+	for (i = 0; i < f->sizeupvalues; i++) {
+		printf("\tname: %s instack: %d idx: %d\n",
+			getstr(f->upvalues[i].name), f->upvalues[i].instack,
+			f->upvalues[i].idx);
+	}
+
+	printf("\n");
+	printf("sizecode: %d\n", f->sizecode);
+	for (i = 0; i < f->sizecode; i++)
+		decode_instruction(f, f->code[i]);
+
+	printf("sizep: %d\n", f->sizep);
+	for (i = 0; i < f->sizep; i++)
+		dump_function(level + 1, f->p[i]);
+
+}
+
+static void usage(const char *msg_fmt, ...)
+{
+	va_list ap;
+
+	va_start(ap, msg_fmt);
+	fprintf(stderr, msg_fmt, ap);
+	va_end(ap);
+
+	fprintf(stderr,
+"Usage: ktap [options] file [script args] -- cmd [args]\n"
+"   or: ktap [options] -e one-liner  -- cmd [args]\n"
+"\n"
+"Options and arguments:\n"
+"  -o file        : send script output to file, instead of stderr\n"
+"  -p pid         : specific tracing pid\n"
+"  -C cpu         : cpu to monitor in system-wide\n"
+"  -T             : show timestamp for event\n"
+"  -V             : show version\n"
+"  -v             : enable verbose mode\n"
+"  -s             : simple event tracing\n"
+"  -b             : list byte codes\n"
+"  file           : program read from script file\n"
+"  -- cmd [args]  : workload to tracing\n");
+
+	exit(EXIT_FAILURE);
+}
+
+ktap_global_state dummy_global_state;
+
+static void init_dummy_global_state()
+{
+	memset(&dummy_global_state, 0, sizeof(ktap_global_state));
+	dummy_global_state.seed = 201236;
+
+        kp_tstring_resize(NULL, 32); /* set inital string hashtable size */
+}
+
+#define handle_error(str) do { perror(str); exit(-1); } while(0)
+
+static struct ktap_parm uparm;
+static int ktap_trunk_mem_size = 1024;
+
+static int ktapc_writer(const void* p, size_t sz, void* ud)
+{
+	if (uparm.trunk_len + sz > ktap_trunk_mem_size) {
+		int new_size = (uparm.trunk_len + sz) * 2;
+		uparm.trunk = realloc(uparm.trunk, new_size);
+		ktap_trunk_mem_size = new_size;
+	}
+
+	memcpy(uparm.trunk + uparm.trunk_len, p, sz);
+	uparm.trunk_len += sz;
+
+	return 0;
+}
+
+
+static int forks;
+static char **workload_argv;
+
+static int fork_workload(int ktap_fd)
+{
+	int pid;
+
+	pid = fork();
+	if (pid < 0)
+		handle_error("failed to fork");
+
+	if (pid > 0)
+		return pid;
+
+	signal(SIGTERM, SIG_DFL);
+
+	execvp("", workload_argv);
+
+	/*
+	 * waiting ktapvm prepare all tracing event
+	 * make it more robust in future.
+	 */
+	pause();
+
+	execvp(workload_argv[0], workload_argv);
+
+	perror(workload_argv[0]);
+	exit(-1);
+
+	return -1;
+}
+
+#define KTAPVM_PATH "/sys/kernel/debug/ktap/ktapvm"
+
+static char *output_filename;
+pid_t ktap_pid;
+
+static int run_ktapvm()
+{
+        int ktapvm_fd, ktap_fd;
+	int ret;
+
+	ktap_pid = getpid();
+
+	ktapvm_fd = open(KTAPVM_PATH, O_RDONLY);
+	if (ktapvm_fd < 0)
+		handle_error("open " KTAPVM_PATH " failed");
+
+	ktap_fd = ioctl(ktapvm_fd, 0, NULL);
+	if (ktap_fd < 0)
+		handle_error("ioctl ktapvm failed");
+
+	ktapio_create(output_filename);
+
+	if (forks) {
+		uparm.trace_pid = fork_workload(ktap_fd);
+		uparm.workload = 1;
+	}
+
+	ret = ioctl(ktap_fd, KTAP_CMD_IOC_RUN, &uparm);
+
+	close(ktap_fd);
+	close(ktapvm_fd);
+
+	return ret;
+}
+
+int verbose;
+static int dump_bytecode;
+static char oneline_src[1024];
+static int trace_pid = -1;
+static int trace_cpu = -1;
+static int print_timestamp;
+
+#define SIMPLE_ONE_LINER_FMT	\
+	"trace %s { print(cpu(), tid(), execname(), argevent) }"
+
+static const char *script_file;
+static int script_args_start;
+static int script_args_end;
+
+static void parse_option(int argc, char **argv)
+{
+	char pid[32] = {0};
+	char cpu_str[32] = {0};
+	char *next_arg;
+	int i, j;
+
+	for (i = 1; i < argc; i++) {
+		if (argv[i][0] != '-') {
+			script_file = argv[i];
+			if (!script_file)
+				usage("");
+
+			script_args_start = i + 1;
+			script_args_end = argc;
+
+			for (j = i + 1; j < argc; j++) {
+				if (argv[j][0] == '-' && argv[j][1] == '-')
+					goto found_cmd;
+			}
+
+			return;
+		}
+
+		if (argv[i][0] == '-' && argv[i][1] == '-') {
+			j = i;
+			goto found_cmd;
+		}
+
+		next_arg = argv[i + 1];
+
+		switch (argv[i][1]) {
+		case 'o':
+			output_filename = malloc(strlen(next_arg) + 1);
+			if (!output_filename)
+				return;
+
+			strncpy(output_filename, next_arg, strlen(next_arg));
+			i++;
+			break;
+		case 'e':
+			strncpy(oneline_src, next_arg, strlen(next_arg));
+			i++;
+			break;
+		case 'p':
+			strncpy(pid, next_arg, strlen(next_arg));
+			trace_pid = atoi(pid);
+			i++;
+			break;
+		case 'C':
+			strncpy(cpu_str, next_arg, strlen(next_arg));
+			trace_cpu = atoi(cpu_str);
+			i++;
+			break;
+		case 'T':
+			print_timestamp = 1;
+			break;
+		case 'v':
+			verbose = 1;
+			break;
+		case 's':
+			sprintf(oneline_src, SIMPLE_ONE_LINER_FMT, next_arg);
+			i++;
+			break;
+		case 'b':
+			dump_bytecode = 1;
+			break;
+		case 'V':
+		case '?':
+		case 'h':
+			usage("");
+			break;
+		default:
+			usage("wrong argument\n");
+			break;
+		}
+	}
+
+	return;
+
+ found_cmd:
+	script_args_end = j;
+	forks = 1;
+	workload_argv = &argv[j + 1];
+}
+
+static void compile(const char *input)
+{
+	ktap_closure *cl;
+	char *buff;
+	struct stat sb;
+	int fdin;
+
+	if (oneline_src[0] != '\0') {
+		init_dummy_global_state();
+		cl = ktapc_parser(oneline_src, input);
+		goto dump;
+	}
+
+	fdin = open(input, O_RDONLY);
+	if (fdin < 0) {
+		fprintf(stderr, "open file %s failed\n", input);
+		exit(-1);
+	}
+
+	if (fstat(fdin, &sb) == -1)
+		handle_error("fstat failed");
+
+	buff = mmap(NULL, sb.st_size, PROT_READ, MAP_PRIVATE, fdin, 0);
+	if (buff == MAP_FAILED)
+		handle_error("mmap failed");
+
+	init_dummy_global_state();
+	cl = ktapc_parser(buff, input);
+
+	munmap(buff, sb.st_size);
+	close(fdin);
+
+ dump:
+	if (dump_bytecode) {
+		dump_function(1, cl->l.p);
+		exit(0);
+	}
+
+	/* ktapc output */
+	uparm.trunk = malloc(ktap_trunk_mem_size);
+	if (!uparm.trunk)
+		handle_error("malloc failed");
+
+	ktapc_dump(cl->l.p, ktapc_writer, NULL, 0);
+}
+
+int main(int argc, char **argv)
+{
+	char **ktapvm_argv;
+	int new_index, i;
+	int ret;
+
+	if (argc == 1)
+		usage("");
+
+	parse_option(argc, argv);
+
+	if (oneline_src[0] != '\0')
+		script_file = "one-liner";
+
+	compile(script_file);
+
+	ktapvm_argv = (char **)malloc(sizeof(char *)*(script_args_end -
+					script_args_start + 1));
+	if (!ktapvm_argv) {
+		fprintf(stderr, "canno allocate ktapvm_argv\n");
+		return -1;
+	}
+
+	ktapvm_argv[0] = malloc(strlen(script_file) + 1);
+	if (!ktapvm_argv[0]) {
+		fprintf(stderr, "canno allocate memory\n");
+		return -1;
+	}
+	strcpy(ktapvm_argv[0], script_file);
+	ktapvm_argv[0][strlen(script_file)] = '\0';
+
+	/* pass rest argv into ktapvm */
+	new_index = 1;
+	for (i = script_args_start; i < script_args_end; i++) {
+		ktapvm_argv[new_index] = malloc(strlen(argv[i]) + 1);
+		if (!ktapvm_argv[new_index]) {
+			fprintf(stderr, "canno allocate memory\n");
+			return -1;
+		}
+		strcpy(ktapvm_argv[new_index], argv[i]);
+		ktapvm_argv[new_index][strlen(argv[i])] = '\0';
+		new_index++;
+	}
+
+	uparm.argv = ktapvm_argv;
+	uparm.argc = new_index;
+	uparm.verbose = verbose;
+	uparm.trace_pid = trace_pid;
+	uparm.trace_cpu = trace_cpu;
+	uparm.print_timestamp = print_timestamp;
+
+	/* start running into kernel ktapvm */
+	ret = run_ktapvm();
+
+	cleanup_event_resources();
+	return ret;
+}
+
+
diff --git a/drivers/staging/ktap/userspace/parser.c b/drivers/staging/ktap/userspace/parser.c
new file mode 100644
index 000000000000..dd9e2de692ad
--- /dev/null
+++ b/drivers/staging/ktap/userspace/parser.c
@@ -0,0 +1,1910 @@
+/*
+ * parser.c - ktap parser
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
+ *  - The part of code in this file is copied from lua initially.
+ *  - lua's MIT license is compatible with GPL.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "../include/ktap_types.h"
+#include "../include/ktap_opcodes.h"
+#include "ktapc.h"
+
+/* maximum number of local variables per function (must be smaller
+   than 250, due to the bytecode format) */
+#define MAXVARS		200
+
+#define hasmultret(k)		((k) == VCALL || (k) == VVARARG)
+
+
+/*
+ * nodes for block list (list of active blocks)
+ */
+typedef struct ktap_blockcnt {
+	struct ktap_blockcnt *previous;  /* chain */
+	short firstlabel;  /* index of first label in this block */
+	short firstgoto;  /* index of first pending goto in this block */
+	u8 nactvar;  /* # active locals outside the block */
+	u8 upval;  /* true if some variable in the block is an upvalue */
+	 u8 isloop;  /* true if `block' is a loop */
+} ktap_blockcnt;
+
+/*
+ * prototypes for recursive non-terminal functions
+ */
+static void statement (ktap_lexstate *ls);
+static void expr (ktap_lexstate *ls, ktap_expdesc *v);
+
+static void anchor_token(ktap_lexstate *ls)
+{
+	/* last token from outer function must be EOS */
+	ktap_assert((int)(ls->fs != NULL) || ls->t.token == TK_EOS);
+	if (ls->t.token == TK_NAME || ls->t.token == TK_STRING) {
+		ktap_string *ts = ls->t.seminfo.ts;
+		lex_newstring(ls, getstr(ts), ts->tsv.len);
+	}
+}
+
+/* semantic error */
+static void semerror(ktap_lexstate *ls, const char *msg)
+{
+	ls->t.token = 0;  /* remove 'near to' from final message */
+	lex_syntaxerror(ls, msg);
+}
+
+static void error_expected(ktap_lexstate *ls, int token)
+{
+	lex_syntaxerror(ls,
+		ktapc_sprintf("%s expected", lex_token2str(ls, token)));
+}
+
+static void errorlimit(ktap_funcstate *fs, int limit, const char *what)
+{
+	const char *msg;
+	int line = fs->f->linedefined;
+	const char *where = (line == 0) ? "main function"
+				: ktapc_sprintf("function at line %d", line);
+
+	msg = ktapc_sprintf("too many %s (limit is %d) in %s",
+				what, limit, where);
+	lex_syntaxerror(fs->ls, msg);
+}
+
+static void checklimit(ktap_funcstate *fs, int v, int l, const char *what)
+{
+	if (v > l)
+		errorlimit(fs, l, what);
+}
+
+static int testnext(ktap_lexstate *ls, int c)
+{
+	if (ls->t.token == c) {
+		lex_next(ls);
+		return 1;
+	}
+	else
+		return 0;
+}
+
+static void check(ktap_lexstate *ls, int c)
+{
+	if (ls->t.token != c)
+		error_expected(ls, c);
+}
+
+static void checknext(ktap_lexstate *ls, int c)
+{
+	check(ls, c);
+	lex_next(ls);
+}
+
+#define check_condition(ls,c,msg)	{ if (!(c)) lex_syntaxerror(ls, msg); }
+
+static void check_match(ktap_lexstate *ls, int what, int who, int where)
+{
+	if (!testnext(ls, what)) {
+		if (where == ls->linenumber)
+			error_expected(ls, what);
+		else {
+			lex_syntaxerror(ls, ktapc_sprintf(
+					"%s expected (to close %s at line %d)",
+					lex_token2str(ls, what),
+					lex_token2str(ls, who), where));
+		}
+	}
+}
+
+static ktap_string *str_checkname(ktap_lexstate *ls)
+{
+	ktap_string *ts;
+
+	check(ls, TK_NAME);
+	ts = ls->t.seminfo.ts;
+	lex_next(ls);
+	return ts;
+}
+
+static void init_exp(ktap_expdesc *e, expkind k, int i)
+{
+	e->f = e->t = NO_JUMP;
+	e->k = k;
+	e->u.info = i;
+}
+
+static void codestring(ktap_lexstate *ls, ktap_expdesc *e, ktap_string *s)
+{
+	init_exp(e, VK, codegen_stringK(ls->fs, s));
+}
+
+static void checkname(ktap_lexstate *ls, ktap_expdesc *e)
+{
+	codestring(ls, e, str_checkname(ls));
+}
+
+static int registerlocalvar(ktap_lexstate *ls, ktap_string *varname)
+{
+	ktap_funcstate *fs = ls->fs;
+	ktap_proto *f = fs->f;
+	int oldsize = f->sizelocvars;
+
+	ktapc_growvector(f->locvars, fs->nlocvars, f->sizelocvars,
+			 ktap_locvar, SHRT_MAX, "local variables");
+
+	while (oldsize < f->sizelocvars)
+		f->locvars[oldsize++].varname = NULL;
+
+	f->locvars[fs->nlocvars].varname = varname;
+	return fs->nlocvars++;
+}
+
+static void new_localvar(ktap_lexstate *ls, ktap_string *name)
+{
+	ktap_funcstate *fs = ls->fs;
+	ktap_dyndata *dyd = ls->dyd;
+	int reg = registerlocalvar(ls, name);
+
+	checklimit(fs, dyd->actvar.n + 1 - fs->firstlocal,
+		   MAXVARS, "local variables");
+	ktapc_growvector(dyd->actvar.arr, dyd->actvar.n + 1,
+			 dyd->actvar.size, ktap_vardesc, MAX_INT, "local variables");
+	dyd->actvar.arr[dyd->actvar.n++].idx = (short)reg;
+}
+
+static void new_localvarliteral_(ktap_lexstate *ls, const char *name, size_t sz)
+{
+	new_localvar(ls, lex_newstring(ls, name, sz));
+}
+
+#define new_localvarliteral(ls,v) \
+	new_localvarliteral_(ls, "" v, (sizeof(v)/sizeof(char))-1)
+
+static ktap_locvar *getlocvar(ktap_funcstate *fs, int i)
+{
+	int idx = fs->ls->dyd->actvar.arr[fs->firstlocal + i].idx;
+
+	ktap_assert(idx < fs->nlocvars);
+	return &fs->f->locvars[idx];
+}
+
+static void adjustlocalvars(ktap_lexstate *ls, int nvars)
+{
+	ktap_funcstate *fs = ls->fs;
+
+	fs->nactvar = (u8)(fs->nactvar + nvars);
+	for (; nvars; nvars--) {
+		getlocvar(fs, fs->nactvar - nvars)->startpc = fs->pc;
+	}
+}
+
+static void removevars(ktap_funcstate *fs, int tolevel)
+{
+	fs->ls->dyd->actvar.n -= (fs->nactvar - tolevel);
+
+	while (fs->nactvar > tolevel)
+		getlocvar(fs, --fs->nactvar)->endpc = fs->pc;
+}
+
+static int searchupvalue(ktap_funcstate *fs, ktap_string *name)
+{
+	int i;
+	ktap_upvaldesc *up = fs->f->upvalues;
+
+	for (i = 0; i < fs->nups; i++) {
+		if (ktapc_ts_eqstr(up[i].name, name))
+			return i;
+	}
+	return -1;  /* not found */
+}
+
+static int newupvalue(ktap_funcstate *fs, ktap_string *name, ktap_expdesc *v)
+{
+	ktap_proto *f = fs->f;
+	int oldsize = f->sizeupvalues;
+
+	checklimit(fs, fs->nups + 1, MAXUPVAL, "upvalues");
+	ktapc_growvector(f->upvalues, fs->nups, f->sizeupvalues,
+			 ktap_upvaldesc, MAXUPVAL, "upvalues");
+
+	while (oldsize < f->sizeupvalues)
+		f->upvalues[oldsize++].name = NULL;
+	f->upvalues[(int)fs->nups].instack = (v->k == VLOCAL);
+	f->upvalues[(int)fs->nups].idx = (u8)(v->u.info);
+	f->upvalues[(int)fs->nups].name = name;
+	return fs->nups++;
+}
+
+static int searchvar(ktap_funcstate *fs, ktap_string *n)
+{
+	int i;
+
+	for (i = fs->nactvar-1; i >= 0; i--) {
+		if (ktapc_ts_eqstr(n, getlocvar(fs, i)->varname))
+			return i;
+	}
+	return -1;  /* not found */
+}
+
+/*
+ * Mark block where variable at given level was defined
+ * (to emit close instructions later).
+ */
+static void markupval(ktap_funcstate *fs, int level)
+{
+	ktap_blockcnt *bl = fs->bl;
+
+	while (bl->nactvar > level)
+		bl = bl->previous;
+	bl->upval = 1;
+}
+
+/*
+ * Find variable with given name 'n'. If it is an upvalue, add this
+ * upvalue into all intermediate functions.
+ */
+static int singlevaraux(ktap_funcstate *fs, ktap_string *n, ktap_expdesc *var, int base)
+{
+	if (fs == NULL)  /* no more levels? */
+		return VVOID;  /* default is global */
+	else {
+		int v = searchvar(fs, n);  /* look up locals at current level */
+		if (v >= 0) {  /* found? */
+			init_exp(var, VLOCAL, v);  /* variable is local */
+			if (!base)
+				markupval(fs, v);  /* local will be used as an upval */
+			return VLOCAL;
+		} else {  /* not found as local at current level; try upvalues */
+			int idx = searchupvalue(fs, n);  /* try existing upvalues */
+			if (idx < 0) {  /* not found? */
+				if (singlevaraux(fs->prev, n, var, 0) == VVOID) /* try upper levels */
+					return VVOID;  /* not found; is a global */
+				/* else was LOCAL or UPVAL */
+				idx  = newupvalue(fs, n, var);  /* will be a new upvalue */
+			}
+			init_exp(var, VUPVAL, idx);
+			return VUPVAL;
+		}
+	}
+}
+
+static void singlevar(ktap_lexstate *ls, ktap_expdesc *var)
+{
+	ktap_string *varname = str_checkname(ls);
+	ktap_funcstate *fs = ls->fs;
+
+	if (singlevaraux(fs, varname, var, 1) == VVOID) {  /* global name? */
+		ktap_expdesc key;
+		singlevaraux(fs, ls->envn, var, 1);  /* get environment variable */
+		ktap_assert(var->k == VLOCAL || var->k == VUPVAL);
+		codestring(ls, &key, varname);  /* key is variable name */
+		codegen_indexed(fs, var, &key);  /* env[varname] */
+	}
+}
+
+static void adjust_assign(ktap_lexstate *ls, int nvars, int nexps, ktap_expdesc *e)
+{
+	ktap_funcstate *fs = ls->fs;
+	int extra = nvars - nexps;
+
+	if (hasmultret(e->k)) {
+		extra++;  /* includes call itself */
+		if (extra < 0)
+			extra = 0;
+		codegen_setreturns(fs, e, extra);  /* last exp. provides the difference */
+		if (extra > 1)
+			codegen_reserveregs(fs, extra-1);
+	} else {
+		if (e->k != VVOID)
+			codegen_exp2nextreg(fs, e);  /* close last expression */
+		if (extra > 0) {
+			int reg = fs->freereg;
+
+			codegen_reserveregs(fs, extra);
+			codegen_nil(fs, reg, extra);
+		}
+	}
+}
+
+static void enterlevel(ktap_lexstate *ls)
+{
+	++ls->nCcalls;
+	checklimit(ls->fs, ls->nCcalls, KTAP_MAXCCALLS, "C levels");
+}
+
+static void closegoto(ktap_lexstate *ls, int g, ktap_labeldesc *label)
+{
+	int i;
+	ktap_funcstate *fs = ls->fs;
+	ktap_labellist *gl = &ls->dyd->gt;
+	ktap_labeldesc *gt = &gl->arr[g];
+
+	ktap_assert(ktapc_ts_eqstr(gt->name, label->name));
+	if (gt->nactvar < label->nactvar) {
+		ktap_string *vname = getlocvar(fs, gt->nactvar)->varname;
+		const char *msg = ktapc_sprintf(
+			"<goto %s> at line %d jumps into the scope of local " KTAP_QS,
+			getstr(gt->name), gt->line, getstr(vname));
+		semerror(ls, msg);
+	}
+
+	codegen_patchlist(fs, gt->pc, label->pc);
+	/* remove goto from pending list */
+	for (i = g; i < gl->n - 1; i++)
+		gl->arr[i] = gl->arr[i + 1];
+	gl->n--;
+}
+
+/*
+ * try to close a goto with existing labels; this solves backward jumps
+ */
+static int findlabel(ktap_lexstate *ls, int g)
+{
+	int i;
+	ktap_blockcnt *bl = ls->fs->bl;
+	ktap_dyndata *dyd = ls->dyd;
+	ktap_labeldesc *gt = &dyd->gt.arr[g];
+
+	/* check labels in current block for a match */
+	for (i = bl->firstlabel; i < dyd->label.n; i++) {
+		ktap_labeldesc *lb = &dyd->label.arr[i];
+		if (ktapc_ts_eqstr(lb->name, gt->name)) {  /* correct label? */
+			if (gt->nactvar > lb->nactvar &&
+				(bl->upval || dyd->label.n > bl->firstlabel))
+				codegen_patchclose(ls->fs, gt->pc, lb->nactvar);
+			closegoto(ls, g, lb);  /* close it */
+			return 1;
+		}
+	}
+	return 0;  /* label not found; cannot close goto */
+}
+
+static int newlabelentry(ktap_lexstate *ls, ktap_labellist *l, ktap_string *name,
+			 int line, int pc)
+{
+	int n = l->n;
+
+	ktapc_growvector(l->arr, n, l->size,
+			 ktap_labeldesc, SHRT_MAX, "labels/gotos");
+	l->arr[n].name = name;
+	l->arr[n].line = line;
+	l->arr[n].nactvar = ls->fs->nactvar;
+	l->arr[n].pc = pc;
+	l->n++;
+	return n;
+}
+
+
+/*
+ * check whether new label 'lb' matches any pending gotos in current
+ * block; solves forward jumps
+ */
+static void findgotos(ktap_lexstate *ls, ktap_labeldesc *lb)
+{
+	ktap_labellist *gl = &ls->dyd->gt;
+	int i = ls->fs->bl->firstgoto;
+
+	while (i < gl->n) {
+		if (ktapc_ts_eqstr(gl->arr[i].name, lb->name))
+			closegoto(ls, i, lb);
+		else
+			i++;
+	}
+}
+
+/*
+ * "export" pending gotos to outer level, to check them against
+ * outer labels; if the block being exited has upvalues, and
+ * the goto exits the scope of any variable (which can be the
+ * upvalue), close those variables being exited.
+ */
+static void movegotosout(ktap_funcstate *fs, ktap_blockcnt *bl)
+{
+	int i = bl->firstgoto;
+	ktap_labellist *gl = &fs->ls->dyd->gt;
+
+	/* correct pending gotos to current block and try to close it
+		with visible labels */
+	while (i < gl->n) {
+		ktap_labeldesc *gt = &gl->arr[i];
+
+		if (gt->nactvar > bl->nactvar) {
+			if (bl->upval)
+				codegen_patchclose(fs, gt->pc, bl->nactvar);
+			gt->nactvar = bl->nactvar;
+		}
+		if (!findlabel(fs->ls, i))
+			i++;  /* move to next one */
+	}
+}
+
+static void enterblock(ktap_funcstate *fs, ktap_blockcnt *bl, u8 isloop)
+{
+	bl->isloop = isloop;
+	bl->nactvar = fs->nactvar;
+	bl->firstlabel = fs->ls->dyd->label.n;
+	bl->firstgoto = fs->ls->dyd->gt.n;
+	bl->upval = 0;
+	bl->previous = fs->bl;
+	fs->bl = bl;
+	ktap_assert(fs->freereg == fs->nactvar);
+}
+
+
+/*
+ * create a label named "break" to resolve break statements
+ */
+static void breaklabel(ktap_lexstate *ls)
+{
+	ktap_string *n = ktapc_ts_new("break");
+	int l = newlabelentry(ls, &ls->dyd->label, n, 0, ls->fs->pc);
+
+	findgotos(ls, &ls->dyd->label.arr[l]);
+}
+
+/*
+ * generates an error for an undefined 'goto'; choose appropriate
+ * message when label name is a reserved word (which can only be 'break')
+ */
+static void undefgoto(ktap_lexstate *ls, ktap_labeldesc *gt)
+{
+	const char *msg = isreserved(gt->name)
+			? "<%s> at line %d not inside a loop"
+			: "no visible label " KTAP_QS " for <goto> at line %d";
+
+	msg = ktapc_sprintf(msg, getstr(gt->name), gt->line);
+	semerror(ls, msg);
+}
+
+static void leaveblock(ktap_funcstate *fs)
+{
+	ktap_blockcnt *bl = fs->bl;
+	ktap_lexstate *ls = fs->ls;
+	if (bl->previous && bl->upval) {
+		/* create a 'jump to here' to close upvalues */
+		int j = codegen_jump(fs);
+
+		codegen_patchclose(fs, j, bl->nactvar);
+		codegen_patchtohere(fs, j);
+	}
+
+	if (bl->isloop)
+		breaklabel(ls);  /* close pending breaks */
+
+	fs->bl = bl->previous;
+	removevars(fs, bl->nactvar);
+	ktap_assert(bl->nactvar == fs->nactvar);
+	fs->freereg = fs->nactvar;  /* free registers */
+	ls->dyd->label.n = bl->firstlabel;  /* remove local labels */
+	if (bl->previous)  /* inner block? */
+		movegotosout(fs, bl);  /* update pending gotos to outer block */
+	else if (bl->firstgoto < ls->dyd->gt.n)  /* pending gotos in outer block? */
+		undefgoto(ls, &ls->dyd->gt.arr[bl->firstgoto]);  /* error */
+}
+
+/*
+ * adds a new prototype into list of prototypes
+ */
+static ktap_proto *addprototype(ktap_lexstate *ls)
+{
+	ktap_proto *clp;
+	ktap_funcstate *fs = ls->fs;
+	ktap_proto *f = fs->f;  /* prototype of current function */
+
+	if (fs->np >= f->sizep) {
+		int oldsize = f->sizep;
+		ktapc_growvector(f->p, fs->np, f->sizep, ktap_proto *, MAXARG_Bx, "functions");
+		while (oldsize < f->sizep)
+			f->p[oldsize++] = NULL;
+	}
+	f->p[fs->np++] = clp = ktapc_newproto();
+	return clp;
+}
+
+/*
+ * codes instruction to create new closure in parent function
+ */
+static void codeclosure(ktap_lexstate *ls, ktap_expdesc *v)
+{
+	ktap_funcstate *fs = ls->fs->prev;
+	init_exp(v, VRELOCABLE, codegen_codeABx(fs, OP_CLOSURE, 0, fs->np - 1));
+	codegen_exp2nextreg(fs, v);  /* fix it at stack top (for GC) */
+}
+
+static void open_func(ktap_lexstate *ls, ktap_funcstate *fs, ktap_blockcnt *bl)
+{
+	ktap_proto *f;
+
+	fs->prev = ls->fs;  /* linked list of funcstates */
+	fs->ls = ls;
+	ls->fs = fs;
+	fs->pc = 0;
+	fs->lasttarget = 0;
+	fs->jpc = NO_JUMP;
+	fs->freereg = 0;
+	fs->nk = 0;
+	fs->np = 0;
+	fs->nups = 0;
+	fs->nlocvars = 0;
+	fs->nactvar = 0;
+	fs->firstlocal = ls->dyd->actvar.n;
+	fs->bl = NULL;
+	f = fs->f;
+	f->source = ls->source;
+	f->maxstacksize = 2;  /* registers 0/1 are always valid */
+	fs->h = ktapc_table_new();
+	//table_resize(NULL, fs->h, 32, 32);
+	enterblock(fs, bl, 0);
+}
+
+static void close_func(ktap_lexstate *ls)
+{
+	ktap_funcstate *fs = ls->fs;
+	ktap_proto *f = fs->f;
+
+	codegen_ret(fs, 0, 0);  /* final return */
+	leaveblock(fs);
+	ktapc_reallocvector(f->code, f->sizecode, fs->pc, ktap_instruction);
+	f->sizecode = fs->pc;
+	ktapc_reallocvector(f->lineinfo, f->sizelineinfo, fs->pc, int);
+	f->sizelineinfo = fs->pc;
+	ktapc_reallocvector(f->k, f->sizek, fs->nk, ktap_value);
+	f->sizek = fs->nk;
+	ktapc_reallocvector(f->p, f->sizep, fs->np, ktap_proto *);
+	f->sizep = fs->np;
+	ktapc_reallocvector(f->locvars, f->sizelocvars, fs->nlocvars, ktap_locvar);
+	f->sizelocvars = fs->nlocvars;
+	ktapc_reallocvector(f->upvalues, f->sizeupvalues, fs->nups, ktap_upvaldesc);
+	f->sizeupvalues = fs->nups;
+	ktap_assert((int)(fs->bl == NULL));
+	ls->fs = fs->prev;
+	/* last token read was anchored in defunct function; must re-anchor it */
+	anchor_token(ls);
+}
+
+/*============================================================*/
+/* GRAMMAR RULES */
+/*============================================================*/
+
+/*
+ * check whether current token is in the follow set of a block.
+ * 'until' closes syntactical blocks, but do not close scope,
+ * so it handled in separate.
+ */
+static int block_follow(ktap_lexstate *ls, int withuntil)
+{
+	switch (ls->t.token) {
+	case TK_ELSE: case TK_ELSEIF:
+	case TK_END: case TK_EOS:
+		return 1;
+	case TK_UNTIL:
+		return withuntil;
+	case '}':
+		return 1;
+	default:
+		return 0;
+	}
+}
+
+static void statlist(ktap_lexstate *ls)
+{
+	/* statlist -> { stat [`;'] } */
+	while (!block_follow(ls, 1)) {
+		if (ls->t.token == TK_RETURN) {
+			statement(ls);
+			return;  /* 'return' must be last statement */
+		}
+		statement(ls);
+	}
+}
+
+static void fieldsel(ktap_lexstate *ls, ktap_expdesc *v)
+{
+	/* fieldsel -> ['.' | ':'] NAME */
+	ktap_funcstate *fs = ls->fs;
+	ktap_expdesc key;
+
+	codegen_exp2anyregup(fs, v);
+	lex_next(ls);  /* skip the dot or colon */
+	checkname(ls, &key);
+	codegen_indexed(fs, v, &key);
+}
+
+static void yindex(ktap_lexstate *ls, ktap_expdesc *v)
+{
+	/* index -> '[' expr ']' */
+	lex_next(ls);  /* skip the '[' */
+	expr(ls, v);
+	codegen_exp2val(ls->fs, v);
+	checknext(ls, ']');
+}
+
+/*
+ * {======================================================================
+ * Rules for Constructors
+ * =======================================================================
+ */
+struct ConsControl {
+	ktap_expdesc v;  /* last list item read */
+	ktap_expdesc *t;  /* table descriptor */
+	int nh;  /* total number of `record' elements */
+	int na;  /* total number of array elements */
+	int tostore;  /* number of array elements pending to be stored */
+};
+
+static void recfield(ktap_lexstate *ls, struct ConsControl *cc)
+{
+	/* recfield -> (NAME | `['exp1`]') = exp1 */
+	ktap_funcstate *fs = ls->fs;
+	int reg = ls->fs->freereg;
+	ktap_expdesc key, val;
+	int rkkey;
+
+	if (ls->t.token == TK_NAME) {
+		checklimit(fs, cc->nh, MAX_INT, "items in a constructor");
+		checkname(ls, &key);
+	} else  /* ls->t.token == '[' */
+		yindex(ls, &key);
+
+	cc->nh++;
+  	checknext(ls, '=');
+	rkkey = codegen_exp2RK(fs, &key);
+	expr(ls, &val);
+	codegen_codeABC(fs, OP_SETTABLE, cc->t->u.info, rkkey, codegen_exp2RK(fs, &val));
+	fs->freereg = reg;  /* free registers */
+}
+
+static void closelistfield(ktap_funcstate *fs, struct ConsControl *cc)
+{
+	if (cc->v.k == VVOID)
+		return;  /* there is no list item */
+  	codegen_exp2nextreg(fs, &cc->v);
+	cc->v.k = VVOID;
+	if (cc->tostore == LFIELDS_PER_FLUSH) {
+		codegen_setlist(fs, cc->t->u.info, cc->na, cc->tostore);  /* flush */
+		cc->tostore = 0;  /* no more items pending */
+	}
+}
+
+static void lastlistfield(ktap_funcstate *fs, struct ConsControl *cc)
+{
+	if (cc->tostore == 0)
+		return;
+
+	if (hasmultret(cc->v.k)) {
+		codegen_setmultret(fs, &cc->v);
+		codegen_setlist(fs, cc->t->u.info, cc->na, KTAP_MULTRET);
+		cc->na--;  /* do not count last expression (unknown number of elements) */
+	} else {
+		if (cc->v.k != VVOID)
+			codegen_exp2nextreg(fs, &cc->v);
+		codegen_setlist(fs, cc->t->u.info, cc->na, cc->tostore);
+	}
+}
+
+static void listfield(ktap_lexstate *ls, struct ConsControl *cc)
+{
+	/* listfield -> exp */
+	expr(ls, &cc->v);
+	checklimit(ls->fs, cc->na, MAX_INT, "items in a constructor");
+	cc->na++;
+	cc->tostore++;
+}
+
+static void field(ktap_lexstate *ls, struct ConsControl *cc)
+{
+	/* field -> listfield | recfield */
+	switch(ls->t.token) {
+	case TK_NAME: {  /* may be 'listfield' or 'recfield' */
+		if (lex_lookahead(ls) != '=')  /* expression? */
+			listfield(ls, cc);
+		else
+			recfield(ls, cc);
+		break;
+	}
+	case '[': {
+		recfield(ls, cc);
+		break;
+	}
+	default:
+		listfield(ls, cc);
+		break;
+	}
+}
+
+static void constructor(ktap_lexstate *ls, ktap_expdesc *t)
+{
+	/* constructor -> '{' [ field { sep field } [sep] ] '}'
+		sep -> ',' | ';' */
+	ktap_funcstate *fs = ls->fs;
+	int line = ls->linenumber;
+	int pc = codegen_codeABC(fs, OP_NEWTABLE, 0, 0, 0);
+	struct ConsControl cc;
+
+	cc.na = cc.nh = cc.tostore = 0;
+	cc.t = t;
+	init_exp(t, VRELOCABLE, pc);
+	init_exp(&cc.v, VVOID, 0);  /* no value (yet) */
+	codegen_exp2nextreg(ls->fs, t);  /* fix it at stack top */
+	checknext(ls, '{');
+	do {
+		ktap_assert(cc.v.k == VVOID || cc.tostore > 0);
+		if (ls->t.token == '}')
+			break;
+		closelistfield(fs, &cc);
+		field(ls, &cc);
+	} while (testnext(ls, ',') || testnext(ls, ';'));
+	check_match(ls, '}', '{', line);
+	lastlistfield(fs, &cc);
+	SETARG_B(fs->f->code[pc], ktapc_int2fb(cc.na)); /* set initial array size */
+	SETARG_C(fs->f->code[pc], ktapc_int2fb(cc.nh));  /* set initial table size */
+}
+
+/* }====================================================================== */
+
+static void parlist(ktap_lexstate *ls)
+{
+	/* parlist -> [ param { `,' param } ] */
+	ktap_funcstate *fs = ls->fs;
+	ktap_proto *f = fs->f;
+	int nparams = 0;
+	f->is_vararg = 0;
+
+	if (ls->t.token != ')') {  /* is `parlist' not empty? */
+		do {
+			switch (ls->t.token) {
+			case TK_NAME: {  /* param -> NAME */
+				new_localvar(ls, str_checkname(ls));
+				nparams++;
+				break;
+			}
+			case TK_DOTS: {  /* param -> `...' */
+				lex_next(ls);
+				f->is_vararg = 1;
+				break;
+			}
+			default:
+				lex_syntaxerror(ls, "<name> or " KTAP_QL("...") " expected");
+			}
+		} while (!f->is_vararg && testnext(ls, ','));
+	}
+	adjustlocalvars(ls, nparams);
+	f->numparams = (u8)(fs->nactvar);
+	codegen_reserveregs(fs, fs->nactvar);  /* reserve register for parameters */
+}
+
+static void body(ktap_lexstate *ls, ktap_expdesc *e, int ismethod, int line)
+{
+	/* body ->  `(' parlist `)' block END */
+	ktap_funcstate new_fs;
+	ktap_blockcnt bl;
+
+	new_fs.f = addprototype(ls);
+	new_fs.f->linedefined = line;
+	open_func(ls, &new_fs, &bl);
+	checknext(ls, '(');
+	if (ismethod) {
+		new_localvarliteral(ls, "self");  /* create 'self' parameter */
+		adjustlocalvars(ls, 1);
+	}
+	parlist(ls);
+	checknext(ls, ')');
+	checknext(ls, '{');
+	statlist(ls);
+	new_fs.f->lastlinedefined = ls->linenumber;
+	checknext(ls, '}');
+	//check_match(ls, TK_END, TK_FUNCTION, line);
+	codeclosure(ls, e);
+	close_func(ls);
+}
+
+static void func_body_no_args(ktap_lexstate *ls, ktap_expdesc *e, int line)
+{
+	/* body ->  `(' parlist `)' block END */
+	ktap_funcstate new_fs;
+	ktap_blockcnt bl;
+
+	new_fs.f = addprototype(ls);
+	new_fs.f->linedefined = line;
+	open_func(ls, &new_fs, &bl);
+	checknext(ls, '{');
+	statlist(ls);
+	new_fs.f->lastlinedefined = ls->linenumber;
+	checknext(ls, '}');
+	//check_match(ls, TK_END, TK_FUNCTION, line);
+	codeclosure(ls, e);
+	close_func(ls);
+}
+
+static int explist(ktap_lexstate *ls, ktap_expdesc *v)
+{
+	/* explist -> expr { `,' expr } */
+	int n = 1;  /* at least one expression */
+
+	expr(ls, v);
+	while (testnext(ls, ',')) {
+		codegen_exp2nextreg(ls->fs, v);
+		expr(ls, v);
+		n++;
+	}
+	return n;
+}
+
+static void funcargs(ktap_lexstate *ls, ktap_expdesc *f, int line)
+{
+	ktap_funcstate *fs = ls->fs;
+	ktap_expdesc args;
+	int base, nparams;
+
+	switch (ls->t.token) {
+	case '(': {  /* funcargs -> `(' [ explist ] `)' */
+		lex_next(ls);
+		if (ls->t.token == ')')  /* arg list is empty? */
+			args.k = VVOID;
+		else {
+			explist(ls, &args);
+			codegen_setmultret(fs, &args);
+		}
+		check_match(ls, ')', '(', line);
+		break;
+	}
+	case '{': {  /* funcargs -> constructor */
+		constructor(ls, &args);
+		break;
+	}
+	case TK_STRING: {  /* funcargs -> STRING */
+		codestring(ls, &args, ls->t.seminfo.ts);
+		lex_next(ls);  /* must use `seminfo' before `next' */
+		break;
+	}
+	default: {
+		lex_syntaxerror(ls, "function arguments expected");
+	}
+	}
+	ktap_assert(f->k == VNONRELOC);
+	base = f->u.info;  /* base register for call */
+	if (hasmultret(args.k))
+		nparams = KTAP_MULTRET;  /* open call */
+	else {
+		if (args.k != VVOID)
+			codegen_exp2nextreg(fs, &args);  /* close last argument */
+		nparams = fs->freereg - (base+1);
+	}
+	init_exp(f, VCALL, codegen_codeABC(fs, OP_CALL, base, nparams+1, 2));
+	codegen_fixline(fs, line);
+	fs->freereg = base+1;  /* call remove function and arguments and leaves
+				(unless changed) one result */
+}
+
+/*
+ * {======================================================================
+ * Expression parsing
+ * =======================================================================
+ */
+static void primaryexp(ktap_lexstate *ls, ktap_expdesc *v)
+{
+	/* primaryexp -> NAME | '(' expr ')' */
+	switch (ls->t.token) {
+	case '(': {
+		int line = ls->linenumber;
+
+		lex_next(ls);
+		expr(ls, v);
+		check_match(ls, ')', '(', line);
+		codegen_dischargevars(ls->fs, v);
+		return;
+	}
+	case TK_NAME:
+		singlevar(ls, v);
+		return;
+	default:
+		lex_syntaxerror(ls, "unexpected symbol");
+	}
+}
+
+static void suffixedexp(ktap_lexstate *ls, ktap_expdesc *v)
+{
+	/* suffixedexp ->
+		primaryexp { '.' NAME | '[' exp ']' | ':' NAME funcargs | funcargs } */
+	ktap_funcstate *fs = ls->fs;
+	int line = ls->linenumber;
+
+	primaryexp(ls, v);
+	for (;;) {
+		switch (ls->t.token) {
+		case '.': {  /* fieldsel */
+			fieldsel(ls, v);
+			break;
+		}
+		case '[': {  /* `[' exp1 `]' */
+			ktap_expdesc key;
+			codegen_exp2anyregup(fs, v);
+			yindex(ls, &key);
+			codegen_indexed(fs, v, &key);
+			break;
+		}
+		case ':': {  /* `:' NAME funcargs */
+			ktap_expdesc key;
+			lex_next(ls);
+			checkname(ls, &key);
+			codegen_self(fs, v, &key);
+			funcargs(ls, v, line);
+			break;
+		}
+		case '(': case TK_STRING: case '{': {  /* funcargs */
+			codegen_exp2nextreg(fs, v);
+			funcargs(ls, v, line);
+			break;
+		}
+		default:
+			return;
+		}
+	}
+}
+
+static void simpleexp(ktap_lexstate *ls, ktap_expdesc *v)
+{
+	/* simpleexp -> NUMBER | STRING | NIL | TRUE | FALSE | ... |
+		constructor | FUNCTION body | suffixedexp */
+	switch (ls->t.token) {
+	case TK_NUMBER: {
+		init_exp(v, VKNUM, 0);
+		v->u.nval = ls->t.seminfo.r;
+		break;
+	}
+	case TK_STRING: {
+		codestring(ls, v, ls->t.seminfo.ts);
+		break;
+	}
+	case TK_NIL: {
+		init_exp(v, VNIL, 0);
+		break;
+	}
+	case TK_TRUE: {
+		init_exp(v, VTRUE, 0);
+		break;
+	}
+	case TK_FALSE: {
+		init_exp(v, VFALSE, 0);
+		break;
+	}
+	case TK_DOTS: {  /* vararg */
+		ktap_funcstate *fs = ls->fs;
+		check_condition(ls, fs->f->is_vararg,
+                      "cannot use " KTAP_QL("...") " outside a vararg function");
+		init_exp(v, VVARARG, codegen_codeABC(fs, OP_VARARG, 0, 1, 0));
+		break;
+	}
+	case '{': {  /* constructor */
+		constructor(ls, v);
+		return;
+	}
+	case TK_FUNCTION: {
+		lex_next(ls);
+		body(ls, v, 0, ls->linenumber);
+		return;
+	}
+	case TK_ARGEVENT:
+		init_exp(v, VEVENT, 0);
+		break;
+
+	case TK_ARGNAME:
+		init_exp(v, VEVENTNAME, 0);
+		break;
+	case TK_ARG1:
+	case TK_ARG2:
+	case TK_ARG3:
+	case TK_ARG4:
+	case TK_ARG5:
+	case TK_ARG6:
+	case TK_ARG7:
+	case TK_ARG8:
+	case TK_ARG9:
+		init_exp(v, VEVENTARG, ls->t.token - TK_ARG1 + 1);
+		break;
+	default: {
+		suffixedexp(ls, v);
+		return;
+	}
+	}
+	lex_next(ls);
+}
+
+static UnOpr getunopr(int op)
+{
+	switch (op) {
+	case TK_NOT: return OPR_NOT;
+	case '-': return OPR_MINUS;
+	case '#': return OPR_LEN;
+	default: return OPR_NOUNOPR;
+	}
+}
+
+static BinOpr getbinopr(int op)
+{
+	switch (op) {
+	case '+': return OPR_ADD;
+	case '-': return OPR_SUB;
+	case '*': return OPR_MUL;
+	case '/': return OPR_DIV;
+	case '%': return OPR_MOD;
+	case '^': return OPR_POW;
+	case TK_CONCAT: return OPR_CONCAT;
+	case TK_NE: return OPR_NE;
+	case TK_EQ: return OPR_EQ;
+	case '<': return OPR_LT;
+	case TK_LE: return OPR_LE;
+	case '>': return OPR_GT;
+	case TK_GE: return OPR_GE;
+	case TK_AND: return OPR_AND;
+	case TK_OR: return OPR_OR;
+	default: return OPR_NOBINOPR;
+	}
+}
+
+static const struct {
+	u8 left;  /* left priority for each binary operator */
+	u8 right; /* right priority */
+} priority[] = {  /* ORDER OPR */
+	{6, 6}, {6, 6}, {7, 7}, {7, 7}, {7, 7},  /* `+' `-' `*' `/' `%' */
+	{10, 9}, {5, 4},                 /* ^, .. (right associative) */
+	{3, 3}, {3, 3}, {3, 3},          /* ==, <, <= */
+	{3, 3}, {3, 3}, {3, 3},          /* !=, >, >= */
+	{2, 2}, {1, 1}                   /* and, or */
+};
+
+#define UNARY_PRIORITY	8  /* priority for unary operators */
+
+#define leavelevel(ls)	(ls->nCcalls--)
+
+/*
+ * subexpr -> (simpleexp | unop subexpr) { binop subexpr }
+ * where `binop' is any binary operator with a priority higher than `limit'
+ */
+static BinOpr subexpr(ktap_lexstate *ls, ktap_expdesc *v, int limit)
+{
+	BinOpr op;
+	UnOpr uop;
+
+	enterlevel(ls);
+	uop = getunopr(ls->t.token);
+	if (uop != OPR_NOUNOPR) {
+		int line = ls->linenumber;
+
+		lex_next(ls);
+		subexpr(ls, v, UNARY_PRIORITY);
+		codegen_prefix(ls->fs, uop, v, line);
+	} else
+		simpleexp(ls, v);
+
+	/* expand while operators have priorities higher than `limit' */
+	op = getbinopr(ls->t.token);
+	while (op != OPR_NOBINOPR && priority[op].left > limit) {
+		ktap_expdesc v2;
+		BinOpr nextop;
+		int line = ls->linenumber;
+
+		lex_next(ls);
+		codegen_infix(ls->fs, op, v);
+		/* read sub-expression with higher priority */
+		nextop = subexpr(ls, &v2, priority[op].right);
+		codegen_posfix(ls->fs, op, v, &v2, line);
+		op = nextop;
+	}
+	leavelevel(ls);
+	return op;  /* return first untreated operator */
+}
+
+static void expr(ktap_lexstate *ls, ktap_expdesc *v)
+{
+	subexpr(ls, v, 0);
+}
+
+/* }==================================================================== */
+
+/*
+ * {======================================================================
+ * Rules for Statements
+ * =======================================================================
+ */
+static void block(ktap_lexstate *ls)
+{
+	/* block -> statlist */
+	ktap_funcstate *fs = ls->fs;
+	ktap_blockcnt bl;
+
+	enterblock(fs, &bl, 0);
+	statlist(ls);
+	leaveblock(fs);
+}
+
+/*
+ * structure to chain all variables in the left-hand side of an
+ * assignment
+ */
+struct LHS_assign {
+	struct LHS_assign *prev;
+	ktap_expdesc v;  /* variable (global, local, upvalue, or indexed) */
+};
+
+/*
+ * check whether, in an assignment to an upvalue/local variable, the
+ * upvalue/local variable is begin used in a previous assignment to a
+ * table. If so, save original upvalue/local value in a safe place and
+ * use this safe copy in the previous assignment.
+ */
+static void check_conflict(ktap_lexstate *ls, struct LHS_assign *lh, ktap_expdesc *v)
+{
+	ktap_funcstate *fs = ls->fs;
+	int extra = fs->freereg;  /* eventual position to save local variable */
+	int conflict = 0;
+
+	for (; lh; lh = lh->prev) {  /* check all previous assignments */
+		if (lh->v.k == VINDEXED) {  /* assigning to a table? */
+			/* table is the upvalue/local being assigned now? */
+			if (lh->v.u.ind.vt == v->k && lh->v.u.ind.t == v->u.info) {
+				conflict = 1;
+				lh->v.u.ind.vt = VLOCAL;
+				lh->v.u.ind.t = extra;  /* previous assignment will use safe copy */
+			}
+			/* index is the local being assigned? (index cannot be upvalue) */
+			if (v->k == VLOCAL && lh->v.u.ind.idx == v->u.info) {
+				conflict = 1;
+				lh->v.u.ind.idx = extra;  /* previous assignment will use safe copy */
+			}
+		}
+	}
+	if (conflict) {
+		/* copy upvalue/local value to a temporary (in position 'extra') */
+		OpCode op = (v->k == VLOCAL) ? OP_MOVE : OP_GETUPVAL;
+		codegen_codeABC(fs, op, extra, v->u.info, 0);
+		codegen_reserveregs(fs, 1);
+	}
+}
+
+static void assignment(ktap_lexstate *ls, struct LHS_assign *lh, int nvars)
+{
+	ktap_expdesc e;
+
+	check_condition(ls, vkisvar(lh->v.k), "syntax error");
+	if (testnext(ls, ',')) {  /* assignment -> ',' suffixedexp assignment */
+		struct LHS_assign nv;
+
+		nv.prev = lh;
+		suffixedexp(ls, &nv.v);
+		if (nv.v.k != VINDEXED)
+			check_conflict(ls, lh, &nv.v);
+		checklimit(ls->fs, nvars + ls->nCcalls, KTAP_MAXCCALLS,
+				"C levels");
+		assignment(ls, &nv, nvars+1);
+	} else if (testnext(ls, '=')) {  /* assignment -> '=' explist */
+		int nexps;
+
+		nexps = explist(ls, &e);
+		if (nexps != nvars) {
+			adjust_assign(ls, nvars, nexps, &e);
+			/* remove extra values */
+			if (nexps > nvars)
+				ls->fs->freereg -= nexps - nvars;
+		} else {
+			/* close last expression */
+			codegen_setoneret(ls->fs, &e);
+			codegen_storevar(ls->fs, &lh->v, &e);
+			return;  /* avoid default */
+		}
+	} else if (testnext(ls, TK_INCR)) { /* assignment -> '+=' explist */
+		int nexps;
+
+		nexps = explist(ls, &e);
+		if (nexps != nvars) {
+			lex_syntaxerror(ls, "don't allow multi-assign for +=");
+		} else {
+			/* close last expression */
+			codegen_setoneret(ls->fs, &e);
+			codegen_storeincr(ls->fs, &lh->v, &e);
+			return;  /* avoid default */
+		}
+	}
+
+	init_exp(&e, VNONRELOC, ls->fs->freereg-1);  /* default assignment */
+	codegen_storevar(ls->fs, &lh->v, &e);
+}
+
+static int cond(ktap_lexstate *ls)
+{
+	/* cond -> exp */
+	ktap_expdesc v;
+	expr(ls, &v);  /* read condition */
+	if (v.k == VNIL)
+		v.k = VFALSE;  /* `falses' are all equal here */
+	codegen_goiftrue(ls->fs, &v);
+	return v.f;
+}
+
+static void gotostat(ktap_lexstate *ls, int pc)
+{
+	int line = ls->linenumber;
+	ktap_string *label;
+	int g;
+
+	if (testnext(ls, TK_GOTO))
+		label = str_checkname(ls);
+	else {
+		lex_next(ls);  /* skip break */
+		label = ktapc_ts_new("break");
+	}
+	g = newlabelentry(ls, &ls->dyd->gt, label, line, pc);
+	findlabel(ls, g);  /* close it if label already defined */
+}
+
+/* check for repeated labels on the same block */
+static void checkrepeated(ktap_funcstate *fs, ktap_labellist *ll, ktap_string *label)
+{
+	int i;
+	for (i = fs->bl->firstlabel; i < ll->n; i++) {
+		if (ktapc_ts_eqstr(label, ll->arr[i].name)) {
+			const char *msg = ktapc_sprintf(
+				"label " KTAP_QS " already defined on line %d",
+				getstr(label), ll->arr[i].line);
+			semerror(fs->ls, msg);
+		}
+	}
+}
+
+/* skip no-op statements */
+static void skipnoopstat(ktap_lexstate *ls)
+{
+	while (ls->t.token == ';' || ls->t.token == TK_DBCOLON)
+		statement(ls);
+}
+
+static void labelstat (ktap_lexstate *ls, ktap_string *label, int line)
+{
+	/* label -> '::' NAME '::' */
+	ktap_funcstate *fs = ls->fs;
+	ktap_labellist *ll = &ls->dyd->label;
+	int l;  /* index of new label being created */
+
+	checkrepeated(fs, ll, label);  /* check for repeated labels */
+	checknext(ls, TK_DBCOLON);  /* skip double colon */
+	/* create new entry for this label */
+	l = newlabelentry(ls, ll, label, line, fs->pc);
+	skipnoopstat(ls);  /* skip other no-op statements */
+	if (block_follow(ls, 0)) {  /* label is last no-op statement in the block? */
+		/* assume that locals are already out of scope */
+		ll->arr[l].nactvar = fs->bl->nactvar;
+	}
+	findgotos(ls, &ll->arr[l]);
+}
+
+static void whilestat(ktap_lexstate *ls, int line)
+{
+	/* whilestat -> WHILE cond DO block END */
+	ktap_funcstate *fs = ls->fs;
+	int whileinit;
+	int condexit;
+	ktap_blockcnt bl;
+
+	lex_next(ls);  /* skip WHILE */
+	whileinit = codegen_getlabel(fs);
+	checknext(ls, '(');
+	condexit = cond(ls);
+	checknext(ls, ')');
+
+	enterblock(fs, &bl, 1);
+	//checknext(ls, TK_DO);
+	checknext(ls, '{');
+	block(ls);
+	codegen_jumpto(fs, whileinit);
+	checknext(ls, '}');
+	//check_match(ls, TK_END, TK_WHILE, line);
+	leaveblock(fs);
+	codegen_patchtohere(fs, condexit);  /* false conditions finish the loop */
+}
+
+static void repeatstat(ktap_lexstate *ls, int line)
+{
+	/* repeatstat -> REPEAT block UNTIL cond */
+	int condexit;
+	ktap_funcstate *fs = ls->fs;
+	int repeat_init = codegen_getlabel(fs);
+	ktap_blockcnt bl1, bl2;
+
+	enterblock(fs, &bl1, 1);  /* loop block */
+	enterblock(fs, &bl2, 0);  /* scope block */
+	lex_next(ls);  /* skip REPEAT */
+	statlist(ls);
+	check_match(ls, TK_UNTIL, TK_REPEAT, line);
+	condexit = cond(ls);  /* read condition (inside scope block) */
+	if (bl2.upval)  /* upvalues? */
+		codegen_patchclose(fs, condexit, bl2.nactvar);
+	leaveblock(fs);  /* finish scope */
+	codegen_patchlist(fs, condexit, repeat_init);  /* close the loop */
+	leaveblock(fs);  /* finish loop */
+}
+
+static int exp1(ktap_lexstate *ls)
+{
+	ktap_expdesc e;
+	int reg;
+
+	expr(ls, &e);
+	codegen_exp2nextreg(ls->fs, &e);
+	ktap_assert(e.k == VNONRELOC);
+	reg = e.u.info;
+	return reg;
+}
+
+static void forbody(ktap_lexstate *ls, int base, int line, int nvars, int isnum)
+{
+	/* forbody -> DO block */
+	ktap_blockcnt bl;
+	ktap_funcstate *fs = ls->fs;
+	int prep, endfor;
+
+	checknext(ls, ')');
+
+	adjustlocalvars(ls, 3);  /* control variables */
+	//checknext(ls, TK_DO);
+	checknext(ls, '{');
+	prep = isnum ? codegen_codeAsBx(fs, OP_FORPREP, base, NO_JUMP) : codegen_jump(fs);
+	enterblock(fs, &bl, 0);  /* scope for declared variables */
+	adjustlocalvars(ls, nvars);
+	codegen_reserveregs(fs, nvars);
+	block(ls);
+	leaveblock(fs);  /* end of scope for declared variables */
+	codegen_patchtohere(fs, prep);
+	if (isnum)  /* numeric for? */
+		endfor = codegen_codeAsBx(fs, OP_FORLOOP, base, NO_JUMP);
+	else {  /* generic for */
+		codegen_codeABC(fs, OP_TFORCALL, base, 0, nvars);
+		codegen_fixline(fs, line);
+		endfor = codegen_codeAsBx(fs, OP_TFORLOOP, base + 2, NO_JUMP);
+	}
+	codegen_patchlist(fs, endfor, prep + 1);
+	codegen_fixline(fs, line);
+}
+
+static void fornum(ktap_lexstate *ls, ktap_string *varname, int line)
+{
+	/* fornum -> NAME = exp1,exp1[,exp1] forbody */
+	ktap_funcstate *fs = ls->fs;
+	int base = fs->freereg;
+
+	new_localvarliteral(ls, "(for index)");
+	new_localvarliteral(ls, "(for limit)");
+	new_localvarliteral(ls, "(for step)");
+	new_localvar(ls, varname);
+	checknext(ls, '=');
+	exp1(ls);  /* initial value */
+	checknext(ls, ',');
+	exp1(ls);  /* limit */
+	if (testnext(ls, ','))
+		exp1(ls);  /* optional step */
+	else {  /* default step = 1 */
+		codegen_codek(fs, fs->freereg, codegen_numberK(fs, 1));
+		codegen_reserveregs(fs, 1);
+	}
+	forbody(ls, base, line, 1, 1);
+}
+
+static void forlist(ktap_lexstate *ls, ktap_string *indexname)
+{
+	/* forlist -> NAME {,NAME} IN explist forbody */
+	ktap_funcstate *fs = ls->fs;
+	ktap_expdesc e;
+	int nvars = 4;  /* gen, state, control, plus at least one declared var */
+	int line;
+	int base = fs->freereg;
+
+	/* create control variables */
+	new_localvarliteral(ls, "(for generator)");
+	new_localvarliteral(ls, "(for state)");
+	new_localvarliteral(ls, "(for control)");
+	/* create declared variables */
+	new_localvar(ls, indexname);
+	while (testnext(ls, ',')) {
+		new_localvar(ls, str_checkname(ls));
+		nvars++;
+	}
+	checknext(ls, TK_IN);
+	line = ls->linenumber;
+	adjust_assign(ls, 3, explist(ls, &e), &e);
+	codegen_checkstack(fs, 3);  /* extra space to call generator */
+	forbody(ls, base, line, nvars - 3, 0);
+}
+
+static void forstat(ktap_lexstate *ls, int line)
+{
+	/* forstat -> FOR (fornum | forlist) END */
+	ktap_funcstate *fs = ls->fs;
+	ktap_string *varname;
+	ktap_blockcnt bl;
+
+	enterblock(fs, &bl, 1);  /* scope for loop and control variables */
+	lex_next(ls);  /* skip `for' */
+
+	checknext(ls, '(');
+	varname = str_checkname(ls);  /* first variable name */
+	switch (ls->t.token) {
+	case '=':
+		fornum(ls, varname, line);
+		break;
+	case ',': case TK_IN:
+		forlist(ls, varname);
+		break;
+	default: 
+		lex_syntaxerror(ls, KTAP_QL("=") " or " KTAP_QL("in") " expected");
+	}
+	//check_match(ls, TK_END, TK_FOR, line);
+	checknext(ls, '}');
+	leaveblock(fs);  /* loop scope (`break' jumps to this point) */
+}
+
+static void test_then_block(ktap_lexstate *ls, int *escapelist)
+{
+	/* test_then_block -> [IF | ELSEIF] cond THEN block */
+	ktap_blockcnt bl;
+	ktap_funcstate *fs = ls->fs;
+	ktap_expdesc v;
+	int jf;  /* instruction to skip 'then' code (if condition is false) */
+
+	lex_next(ls);  /* skip IF or ELSEIF */
+	checknext(ls, '(');
+	expr(ls, &v);  /* read condition */
+	checknext(ls, ')');
+	//checknext(ls, TK_THEN);
+	checknext(ls, '{');
+	if (ls->t.token == TK_GOTO || ls->t.token == TK_BREAK) {
+		codegen_goiffalse(ls->fs, &v);  /* will jump to label if condition is true */
+		enterblock(fs, &bl, 0);  /* must enter block before 'goto' */
+		gotostat(ls, v.t);  /* handle goto/break */
+		skipnoopstat(ls);  /* skip other no-op statements */
+		if (block_follow(ls, 0)) {  /* 'goto' is the entire block? */
+			leaveblock(fs);
+			checknext(ls, '}');
+			return;  /* and that is it */
+		} else  /* must skip over 'then' part if condition is false */
+			jf = codegen_jump(fs);
+	} else {  /* regular case (not goto/break) */
+		codegen_goiftrue(ls->fs, &v);  /* skip over block if condition is false */
+		enterblock(fs, &bl, 0);
+		jf = v.f;
+	}
+	statlist(ls);  /* `then' part */
+	checknext(ls, '}');
+	leaveblock(fs);
+	if (ls->t.token == TK_ELSE || ls->t.token == TK_ELSEIF)  /* followed by 'else'/'elseif'? */
+		codegen_concat(fs, escapelist, codegen_jump(fs));  /* must jump over it */
+	codegen_patchtohere(fs, jf);
+}
+
+static void ifstat(ktap_lexstate *ls, int line)
+{
+	/* ifstat -> IF cond THEN block {ELSEIF cond THEN block} [ELSE block] END */
+	ktap_funcstate *fs = ls->fs;
+	int escapelist = NO_JUMP;  /* exit list for finished parts */
+
+	test_then_block(ls, &escapelist);  /* IF cond THEN block */
+	while (ls->t.token == TK_ELSEIF)
+		test_then_block(ls, &escapelist);  /* ELSEIF cond THEN block */
+	if (testnext(ls, TK_ELSE)) {
+		checknext(ls, '{');
+		block(ls);  /* `else' part */
+		checknext(ls, '}');
+	}
+	//check_match(ls, TK_END, TK_IF, line);
+	codegen_patchtohere(fs, escapelist);  /* patch escape list to 'if' end */
+}
+
+static void localfunc(ktap_lexstate *ls)
+{
+	ktap_expdesc b;
+	ktap_funcstate *fs = ls->fs;
+
+	new_localvar(ls, str_checkname(ls));  /* new local variable */
+	adjustlocalvars(ls, 1);  /* enter its scope */
+	body(ls, &b, 0, ls->linenumber);  /* function created in next register */
+	/* debug information will only see the variable after this point! */
+	getlocvar(fs, b.u.info)->startpc = fs->pc;
+}
+
+static void localstat(ktap_lexstate *ls)
+{
+	/* stat -> LOCAL NAME {`,' NAME} [`=' explist] */
+	int nvars = 0;
+	int nexps;
+	ktap_expdesc e;
+
+	do {
+		new_localvar(ls, str_checkname(ls));
+		nvars++;
+	} while (testnext(ls, ','));
+	if (testnext(ls, '='))
+		nexps = explist(ls, &e);
+	else {
+		e.k = VVOID;
+		nexps = 0;
+	}
+	adjust_assign(ls, nvars, nexps, &e);
+	adjustlocalvars(ls, nvars);
+}
+
+static int funcname(ktap_lexstate *ls, ktap_expdesc *v)
+{
+	/* funcname -> NAME {fieldsel} [`:' NAME] */
+	int ismethod = 0;
+
+	singlevar(ls, v);
+	while (ls->t.token == '.')
+		fieldsel(ls, v);
+		if (ls->t.token == ':') {
+			ismethod = 1;
+			fieldsel(ls, v);
+	}
+	return ismethod;
+}
+
+static void funcstat(ktap_lexstate *ls, int line)
+{
+	/* funcstat -> FUNCTION funcname body */
+	int ismethod;
+	ktap_expdesc v, b;
+
+	lex_next(ls);  /* skip FUNCTION */
+	ismethod = funcname(ls, &v);
+	body(ls, &b, ismethod, line);
+	codegen_storevar(ls->fs, &v, &b);
+	codegen_fixline(ls->fs, line);  /* definition `happens' in the first line */
+}
+
+static void exprstat(ktap_lexstate *ls)
+{
+	/* stat -> func | assignment */
+	ktap_funcstate *fs = ls->fs;
+	struct LHS_assign v;
+
+	suffixedexp(ls, &v.v);
+	/* stat -> assignment ? */
+	if (ls->t.token == '=' || ls->t.token == ',' ||
+	    ls->t.token == TK_INCR) {
+		v.prev = NULL;
+		assignment(ls, &v, 1);
+	} else {  /* stat -> func */
+		check_condition(ls, v.v.k == VCALL, "syntax error");
+		SETARG_C(getcode(fs, &v.v), 1);  /* call statement uses no results */
+	}
+}
+
+static void retstat(ktap_lexstate *ls)
+{
+	/* stat -> RETURN [explist] [';'] */
+	ktap_funcstate *fs = ls->fs;
+	ktap_expdesc e;
+	int first, nret;  /* registers with returned values */
+
+	if (block_follow(ls, 1) || ls->t.token == ';')
+		first = nret = 0;  /* return no values */
+	else {
+		nret = explist(ls, &e);  /* optional return values */
+		if (hasmultret(e.k)) {
+			codegen_setmultret(fs, &e);
+			if (e.k == VCALL && nret == 1) {  /* tail call? */
+				SET_OPCODE(getcode(fs,&e), OP_TAILCALL);
+				ktap_assert(GETARG_A(getcode(fs,&e)) == fs->nactvar);
+			}
+			first = fs->nactvar;
+			nret = KTAP_MULTRET;  /* return all values */
+		} else {
+			if (nret == 1)  /* only one single value? */
+				first = codegen_exp2anyreg(fs, &e);
+			else {
+				codegen_exp2nextreg(fs, &e);  /* values must go to the `stack' */
+				first = fs->nactvar;  /* return all `active' values */
+				ktap_assert(nret == fs->freereg - first);
+			}
+		}
+	}
+	codegen_ret(fs, first, nret);
+	testnext(ls, ';');  /* skip optional semicolon */
+}
+
+static void tracestat(ktap_lexstate *ls)
+{
+	ktap_expdesc v0, key, args;
+	ktap_expdesc *v = &v0;
+	ktap_string *kdebug_str = ktapc_ts_new("kdebug");
+	ktap_string *probe_str = ktapc_ts_new("probe_by_id");
+	ktap_string *probe_end_str = ktapc_ts_new("probe_end");
+	ktap_funcstate *fs = ls->fs;
+	int token = ls->t.token;
+	int line = ls->linenumber;
+	int base, nparams;
+
+	if (token == TK_TRACE)
+		lex_read_string_until(ls, '{');
+	else
+		lex_next(ls);  /* skip "trace_end" keyword */
+
+	/* kdebug */
+	singlevaraux(fs, ls->envn, v, 1);  /* get environment variable */
+	codestring(ls, &key, kdebug_str);  /* key is variable name */
+	codegen_indexed(fs, v, &key);  /* env[varname] */
+
+	/* fieldsel: kdebug.probe */
+	codegen_exp2anyregup(fs, v);
+	if (token == TK_TRACE)
+		codestring(ls, &key, probe_str);
+	else if (token == TK_TRACE_END)
+		codestring(ls, &key, probe_end_str);
+	codegen_indexed(fs, v, &key);
+
+	/* funcargs*/
+	codegen_exp2nextreg(fs, v);
+
+	if (token == TK_TRACE) {
+		/* argument: EVENTDEF string */
+		check(ls, TK_STRING);
+		enterlevel(ls);
+		ktap_string *ts = ktapc_parse_eventdef(ls->t.seminfo.ts);
+		check_condition(ls, ts != NULL, "Cannot parse eventdef");
+		codestring(ls, &args, ts);
+		lex_next(ls);  /* skip EVENTDEF string */
+		leavelevel(ls);
+
+		codegen_exp2nextreg(fs, &args); /* for next argument */
+	}
+
+	/* argument: callback function */
+	enterlevel(ls);
+	func_body_no_args(ls, &args, ls->linenumber);
+	leavelevel(ls);
+
+	codegen_setmultret(fs, &args);
+
+	base = v->u.info;  /* base register for call */
+	if (hasmultret(args.k))
+		nparams = KTAP_MULTRET;  /* open call */
+	else {
+		codegen_exp2nextreg(fs, &args);  /* close last argument */
+		nparams = fs->freereg - (base+1);
+	}
+	init_exp(v, VCALL, codegen_codeABC(fs, OP_CALL, base, nparams+1, 2));
+	codegen_fixline(fs, line);
+	fs->freereg = base+1;
+
+	check_condition(ls, v->k == VCALL, "syntax error");
+	SETARG_C(getcode(fs, v), 1);  /* call statement uses no results */
+}
+
+static void timerstat(ktap_lexstate *ls)
+{
+	ktap_expdesc v0, key, args;
+	ktap_expdesc *v = &v0;
+	ktap_funcstate *fs = ls->fs;
+	ktap_string *token_str = ls->t.seminfo.ts;
+	ktap_string *interval_str;
+	int line = ls->linenumber;
+	int base, nparams;
+
+	lex_next(ls);  /* skip profile/tick keyword */
+	check(ls, '-');
+
+	lex_read_string_until(ls, '{');
+	interval_str = ls->t.seminfo.ts;
+
+	//printf("timerstat str: %s\n", getstr(interval_str));
+	//exit(0);
+
+	/* timer */
+	singlevaraux(fs, ls->envn, v, 1);  /* get environment variable */
+	codestring(ls, &key, ktapc_ts_new("timer"));  /* key is variable name */
+	codegen_indexed(fs, v, &key);  /* env[varname] */
+
+	/* fieldsel: timer.profile, timer.tick */
+	codegen_exp2anyregup(fs, v);
+	codestring(ls, &key, token_str);
+	codegen_indexed(fs, v, &key);
+
+	/* funcargs*/
+	codegen_exp2nextreg(fs, v);
+
+	/* argument: interval string */
+	check(ls, TK_STRING);
+	enterlevel(ls);
+	codestring(ls, &args, interval_str);
+	lex_next(ls);  /* skip interval string */
+	leavelevel(ls);
+
+	codegen_exp2nextreg(fs, &args); /* for next argument */
+
+	/* argument: callback function */
+	enterlevel(ls);
+	func_body_no_args(ls, &args, ls->linenumber);
+	leavelevel(ls);
+
+	codegen_setmultret(fs, &args);
+
+	base = v->u.info;  /* base register for call */
+	if (hasmultret(args.k))
+		nparams = KTAP_MULTRET;  /* open call */
+	else {
+		codegen_exp2nextreg(fs, &args);  /* close last argument */
+		nparams = fs->freereg - (base+1);
+	}
+	init_exp(v, VCALL, codegen_codeABC(fs, OP_CALL, base, nparams+1, 2));
+	codegen_fixline(fs, line);
+	fs->freereg = base+1;
+
+	check_condition(ls, v->k == VCALL, "syntax error");
+	SETARG_C(getcode(fs, v), 1);  /* call statement uses no results */
+}
+
+static void statement(ktap_lexstate *ls)
+{
+	int line = ls->linenumber;  /* may be needed for error messages */
+
+	enterlevel(ls);
+	switch (ls->t.token) {
+	case ';': {  /* stat -> ';' (empty statement) */
+		lex_next(ls);  /* skip ';' */
+		break;
+	}
+	case TK_IF: {  /* stat -> ifstat */
+		ifstat(ls, line);
+		break;
+	}
+	case TK_WHILE: {  /* stat -> whilestat */
+		whilestat(ls, line);
+		break;
+	}
+	case TK_DO: {  /* stat -> DO block END */
+		lex_next(ls);  /* skip DO */
+		block(ls);
+		check_match(ls, TK_END, TK_DO, line);
+		break;
+	}
+	case TK_FOR: {  /* stat -> forstat */
+		forstat(ls, line);
+		break;
+	}
+	case TK_REPEAT: {  /* stat -> repeatstat */
+		repeatstat(ls, line);
+		break;
+	}
+	case TK_FUNCTION: {  /* stat -> funcstat */
+		funcstat(ls, line);
+		break;
+	}
+	case TK_LOCAL: {  /* stat -> localstat */
+		lex_next(ls);  /* skip LOCAL */
+		if (testnext(ls, TK_FUNCTION))  /* local function? */
+			localfunc(ls);
+		else
+			localstat(ls);
+		break;
+	}
+	case TK_DBCOLON: {  /* stat -> label */
+		lex_next(ls);  /* skip double colon */
+		labelstat(ls, str_checkname(ls), line);
+		break;
+	}
+	case TK_RETURN: {  /* stat -> retstat */
+		lex_next(ls);  /* skip RETURN */
+		retstat(ls);
+		break;
+	}
+	case TK_BREAK:   /* stat -> breakstat */
+	case TK_GOTO: {  /* stat -> 'goto' NAME */
+		gotostat(ls, codegen_jump(ls->fs));
+		break;
+	}
+
+	case TK_TRACE:
+	case TK_TRACE_END:
+		tracestat(ls);
+		break;
+	case TK_PROFILE:
+	case TK_TICK:
+		timerstat(ls);
+		break;
+	default: {  /* stat -> func | assignment */
+		exprstat(ls);
+		break;
+	}
+	}
+	//ktap_assert(ls->fs->f->maxstacksize >= ls->fs->freereg &&
+	//	ls->fs->freereg >= ls->fs->nactvar);
+	ls->fs->freereg = ls->fs->nactvar;  /* free registers */
+	leavelevel(ls);
+}
+/* }====================================================================== */
+
+/*
+ * compiles the main function, which is a regular vararg function with an upvalue
+ */
+static void mainfunc(ktap_lexstate *ls, ktap_funcstate *fs)
+{
+	ktap_blockcnt bl;
+	ktap_expdesc v;
+
+	open_func(ls, fs, &bl);
+	fs->f->is_vararg = 1;  /* main function is always vararg */
+	init_exp(&v, VLOCAL, 0);  /* create and... */
+	newupvalue(fs, ls->envn, &v);  /* ...set environment upvalue */
+	lex_next(ls);  /* read first token */
+	statlist(ls);  /* parse main body */
+	check(ls, TK_EOS);
+	close_func(ls);
+}
+
+ktap_closure *ktapc_parser(char *ptr, const char *name)
+{
+	ktap_lexstate lexstate;
+	ktap_funcstate funcstate;
+	ktap_dyndata dyd;
+	ktap_mbuffer buff;
+	int firstchar = *ptr++;
+	ktap_closure *cl = ktapc_newlclosure(1);  /* create main closure */
+
+	memset(&lexstate, 0, sizeof(ktap_lexstate));
+	memset(&funcstate, 0, sizeof(ktap_funcstate));
+	funcstate.f = cl->l.p = ktapc_newproto();
+	funcstate.f->source = ktapc_ts_new(name);  /* create and anchor ktap_string */
+
+	lex_init();
+
+	mbuff_init(&buff);
+	memset(&dyd, 0, sizeof(ktap_dyndata));
+	lexstate.buff = &buff;
+	lexstate.dyd = &dyd;
+	lex_setinput(&lexstate, ptr, funcstate.f->source, firstchar);
+
+	mainfunc(&lexstate, &funcstate);
+
+	ktap_assert(!funcstate.prev && funcstate.nups == 1 && !lexstate.fs);
+
+	/* all scopes should be correctly finished */
+	ktap_assert(dyd.actvar.n == 0 && dyd.gt.n == 0 && dyd.label.n == 0);
+	return cl;
+}
+
diff --git a/drivers/staging/ktap/userspace/util.c b/drivers/staging/ktap/userspace/util.c
new file mode 100644
index 000000000000..8124de995be7
--- /dev/null
+++ b/drivers/staging/ktap/userspace/util.c
@@ -0,0 +1,346 @@
+/*
+ * util.c
+ *
+ * This file is part of ktap by Jovi Zhangwei.
+ *
+ * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
+ *
+ * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
+ *  - The part of code in this file is copied from lua initially.
+ *  - lua's MIT license is compatible with GPL.
+ *
+ * ktap is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * ktap is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include "../include/ktap_types.h"
+#include "ktapc.h"
+
+/*
+ * converts an integer to a "floating point byte", represented as
+ * (eeeeexxx), where the real value is (1xxx) * 2^(eeeee - 1) if
+ * eeeee != 0 and (xxx) otherwise.
+ */
+int ktapc_int2fb(unsigned int x)
+{
+	int e = 0;  /* exponent */
+
+	if (x < 8)
+		return x;
+	while (x >= 0x10) {
+		x = (x+1) >> 1;
+		e++;
+	}
+	return ((e+1) << 3) | ((int)x - 8);
+}
+
+/* converts back */
+int ktapc_fb2int(int x)
+{
+	int e = (x >> 3) & 0x1f;
+
+	if (e == 0)
+		return x;
+	else
+		return ((x & 7) + 8) << (e - 1);
+}
+
+int ktapc_ceillog2(unsigned int x)
+{
+	static const u8 log_2[256] = {
+	0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
+	6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
+	7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+	7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
+	8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+	8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+	8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
+	8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
+	};
+	int l = 0;
+
+	x--;
+	while (x >= 256) {
+		l += 8;
+		x >>= 8;
+	}
+	return l + log_2[x];
+}
+
+ktap_number ktapc_arith(int op, ktap_number v1, ktap_number v2)
+{
+	switch (op) {
+	case KTAP_OPADD: return NUMADD(v1, v2);
+	case KTAP_OPSUB: return NUMSUB(v1, v2);
+	case KTAP_OPMUL: return NUMMUL(v1, v2);
+	case KTAP_OPDIV: return NUMDIV(v1, v2);
+	case KTAP_OPMOD: return NUMMOD(v1, v2);
+	//case KTAP_OPPOW: return NUMPOW(v1, v2);
+	case KTAP_OPUNM: return NUMUNM(v1);
+	default: ktap_assert(0); return 0;
+	}
+}
+
+int ktapc_hexavalue(int c)
+{
+	if (isdigit(c))
+		return c - '0';
+	else
+		return tolower(c) - 'a' + 10;
+}
+
+static int isneg(const char **s)
+{
+	if (**s == '-') {
+		(*s)++;
+		return 1;
+	} else if (**s == '+')
+		(*s)++;
+
+	return 0;
+}
+
+static ktap_number readhexa(const char **s, ktap_number r, int *count)
+{
+	for (; isxdigit((unsigned char)(**s)); (*s)++) {  /* read integer part */
+		r = (r * 16.0) + (ktap_number)(ktapc_hexavalue((unsigned char)(**s)));
+		(*count)++;
+	}
+
+	return r;
+}
+
+/*
+ * convert an hexadecimal numeric string to a number, following
+ * C99 specification for 'strtod'
+ */
+static ktap_number strx2number(const char *s, char **endptr)
+{
+	ktap_number r = 0.0;
+	int e = 0, i = 0;
+	int neg = 0;  /* 1 if number is negative */
+
+	*endptr = (char *)s;  /* nothing is valid yet */
+	while (isspace((unsigned char)(*s)))
+		s++;  /* skip initial spaces */
+
+	neg = isneg(&s);  /* check signal */
+	if (!(*s == '0' && (*(s + 1) == 'x' || *(s + 1) == 'X')))  /* check '0x' */
+		return 0.0;  /* invalid format (no '0x') */
+
+	s += 2;  /* skip '0x' */
+	r = readhexa(&s, r, &i);  /* read integer part */
+	if (*s == '.') {
+		s++;  /* skip dot */
+		r = readhexa(&s, r, &e);  /* read fractional part */
+	}
+
+	if (i == 0 && e == 0)
+		return 0.0;  /* invalid format (no digit) */
+	e *= -4;  /* each fractional digit divides value by 2^-4 */
+	*endptr = (char *)s;  /* valid up to here */
+
+	if (*s == 'p' || *s == 'P') {  /* exponent part? */
+		int exp1 = 0;
+		int neg1;
+
+		s++;  /* skip 'p' */
+		neg1 = isneg(&s);  /* signal */
+		if (!isdigit((unsigned char)(*s)))
+			goto ret;  /* must have at least one digit */
+		while (isdigit((unsigned char)(*s)))  /* read exponent */
+			exp1 = exp1 * 10 + *(s++) - '0';
+		if (neg1) exp1 = -exp1;
+			e += exp1;
+	}
+
+	*endptr = (char *)s;  /* valid up to here */
+ ret:
+	if (neg)
+		r = -r;
+
+	return ldexp(r, e);
+}
+
+int ktapc_str2d(const char *s, size_t len, ktap_number *result)
+{
+	char *endptr;
+
+	if (strpbrk(s, "nN"))  /* reject 'inf' and 'nan' */
+		return 0;
+	else if (strpbrk(s, "xX"))  /* hexa? */
+		*result = strx2number(s, &endptr);
+	else
+		*result = strtod(s, &endptr);
+
+	if (endptr == s)
+		return 0;  /* nothing recognized */
+	while (isspace((unsigned char)(*endptr)))
+		endptr++;
+	return (endptr == s + len);  /* OK if no trailing characters */
+}
+
+/* number of chars of a literal string without the ending \0 */
+#define LL(x)	(sizeof(x)/sizeof(char) - 1)
+
+#define RETS	"..."
+#define PRE	"[string \""
+#define POS	"\"]"
+
+#define addstr(a,b,l)	( memcpy(a,b,(l) * sizeof(char)), a += (l) )
+
+void ktapc_chunkid(char *out, const char *source, size_t bufflen)
+{
+	size_t l = strlen(source);
+
+	if (*source == '=') {  /* 'literal' source */
+		if (l <= bufflen)  /* small enough? */
+			memcpy(out, source + 1, l * sizeof(char));
+		else {  /* truncate it */
+			addstr(out, source + 1, bufflen - 1);
+			*out = '\0';
+		}
+	} else if (*source == '@') {  /* file name */
+		if (l <= bufflen)  /* small enough? */
+			memcpy(out, source + 1, l * sizeof(char));
+		else {  /* add '...' before rest of name */
+			addstr(out, RETS, LL(RETS));
+			bufflen -= LL(RETS);
+			memcpy(out, source + 1 + l - bufflen, bufflen * sizeof(char));
+		}
+	} else {  /* string; format as [string "source"] */
+		const char *nl = strchr(source, '\n');  /* find first new line (if any) */
+		addstr(out, PRE, LL(PRE));  /* add prefix */
+		bufflen -= LL(PRE RETS POS) + 1;  /* save space for prefix+suffix+'\0' */
+		if (l < bufflen && nl == NULL) {  /* small one-line source? */
+			addstr(out, source, l);  /* keep it */
+		} else {
+			if (nl != NULL)
+				l = nl - source;  /* stop at first newline */
+			if (l > bufflen)
+				l = bufflen;
+			addstr(out, source, l);
+			addstr(out, RETS, LL(RETS));
+		}
+		memcpy(out, POS, (LL(POS) + 1) * sizeof(char));
+	}
+}
+
+
+/*
+ * strglobmatch is copyed from perf(linux/tools/perf/util/string.c)
+ */
+
+/* Character class matching */
+static bool __match_charclass(const char *pat, char c, const char **npat)
+{
+	bool complement = false, ret = true;
+
+	if (*pat == '!') {
+		complement = true;
+		pat++;
+	}
+	if (*pat++ == c)	/* First character is special */
+		goto end;
+
+	while (*pat && *pat != ']') {	/* Matching */
+		if (*pat == '-' && *(pat + 1) != ']') {	/* Range */
+			if (*(pat - 1) <= c && c <= *(pat + 1))
+				goto end;
+			if (*(pat - 1) > *(pat + 1))
+				goto error;
+			pat += 2;
+		} else if (*pat++ == c)
+			goto end;
+	}
+	if (!*pat)
+		goto error;
+	ret = false;
+
+end:
+	while (*pat && *pat != ']')	/* Searching closing */
+		pat++;
+	if (!*pat)
+		goto error;
+	*npat = pat + 1;
+	return complement ? !ret : ret;
+
+error:
+	return false;
+}
+
+/* Glob/lazy pattern matching */
+static bool __match_glob(const char *str, const char *pat, bool ignore_space)
+{
+	while (*str && *pat && *pat != '*') {
+		if (ignore_space) {
+			/* Ignore spaces for lazy matching */
+			if (isspace(*str)) {
+				str++;
+				continue;
+			}
+			if (isspace(*pat)) {
+				pat++;
+				continue;
+			}
+		}
+		if (*pat == '?') {	/* Matches any single character */
+			str++;
+			pat++;
+			continue;
+		} else if (*pat == '[')	/* Character classes/Ranges */
+			if (__match_charclass(pat + 1, *str, &pat)) {
+				str++;
+				continue;
+			} else
+				return false;
+		else if (*pat == '\\') /* Escaped char match as normal char */
+			pat++;
+		if (*str++ != *pat++)
+			return false;
+	}
+	/* Check wild card */
+	if (*pat == '*') {
+		while (*pat == '*')
+			pat++;
+		if (!*pat)	/* Tail wild card matches all */
+			return true;
+		while (*str)
+			if (__match_glob(str++, pat, ignore_space))
+				return true;
+	}
+	return !*str && !*pat;
+}
+
+/**
+ * strglobmatch - glob expression pattern matching
+ * @str: the target string to match
+ * @pat: the pattern string to match
+ *
+ * This returns true if the @str matches @pat. @pat can includes wildcards
+ * ('*','?') and character classes ([CHARS], complementation and ranges are
+ * also supported). Also, this supports escape character ('\') to use special
+ * characters as normal character.
+ *
+ * Note: if @pat syntax is broken, this always returns false.
+ */
+bool strglobmatch(const char *str, const char *pat)
+{
+	return __match_glob(str, pat, false);
+}
+
-- 
cgit 


From 6ec1d127eeeb7943106daf4ec69b612fff93df74 Mon Sep 17 00:00:00 2001
From: Joseph Lo <josephl@nvidia.com>
Date: Fri, 11 Oct 2013 17:58:39 +0800
Subject: ARM: tegra: enable LP1 suspend mode for Venice2

Enable LP1 suspend mode for Tegra124 Venice2 board.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/boot/dts/tegra124-venice2.dts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/boot/dts/tegra124-venice2.dts b/arch/arm/boot/dts/tegra124-venice2.dts
index 2bfc7abd26b2..431d67a2b413 100644
--- a/arch/arm/boot/dts/tegra124-venice2.dts
+++ b/arch/arm/boot/dts/tegra124-venice2.dts
@@ -16,5 +16,12 @@
 
 	pmc@7000e400 {
 		nvidia,invert-interrupt;
+		nvidia,suspend-mode = <1>;
+		nvidia,cpu-pwr-good-time = <500>;
+		nvidia,cpu-pwr-off-time = <300>;
+		nvidia,core-pwr-good-time = <641 3845>;
+		nvidia,core-pwr-off-time = <61036>;
+		nvidia,core-power-req-active-high;
+		nvidia,sys-clock-req-active-high;
 	};
 };
-- 
cgit 


From 740ad6c328823f066efb8b907576a54ef92aca69 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Fri, 11 Oct 2013 00:06:34 -0700
Subject: ASoC: rcar: fixup rsnd_platform_call() return value

Un-implemented platform callback is not error.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/sh/rcar/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index fc83f0f2aead..28c24fcf8bc7 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -103,7 +103,7 @@
  *	rsnd_platform functions
  */
 #define rsnd_platform_call(priv, dai, func, param...)	\
-	(!(priv->info->func) ? -ENODEV :		\
+	(!(priv->info->func) ? 0 :		\
 	 priv->info->func(param))
 
 /*
-- 
cgit 


From 2192f81c53a7879c803f0f7d6c49645fdf6c2f6a Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Fri, 11 Oct 2013 00:07:48 -0700
Subject: ASoC: rcar: add ID check on rsnd_dai_get()

checking id in rsnd_dai_get() is good idea

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/sh/rcar/core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index 28c24fcf8bc7..b234ed663073 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -318,6 +318,9 @@ int rsnd_dai_id(struct rsnd_priv *priv, struct rsnd_dai *rdai)
 
 struct rsnd_dai *rsnd_dai_get(struct rsnd_priv *priv, int id)
 {
+	if ((id < 0) || (id >= rsnd_dai_nr(priv)))
+		return NULL;
+
 	return priv->rdai + id;
 }
 
-- 
cgit 


From cd1086913ffef6d9656efdf35168b2b28675c245 Mon Sep 17 00:00:00 2001
From: Andreas Larsson <andreas@gaisler.com>
Date: Fri, 11 Oct 2013 08:07:00 +0200
Subject: usb: gadget: Make VERBOSE_DEBUG enableable via Kconfig

Create a way for VERBOSE_DEBUG to be enabled during
drivers/usb/gadget/ build.

Signed-off-by: Andreas Larsson <andreas@gaisler.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/Kconfig  | 14 ++++++++++++++
 drivers/usb/gadget/Makefile |  3 ++-
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 604f885345f1..a91e6422f930 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -58,6 +58,20 @@ config USB_GADGET_DEBUG
 	   trying to track down.  Never enable these messages for a
 	   production build.
 
+config USB_GADGET_VERBOSE
+	bool "Verbose debugging Messages (DEVELOPMENT)"
+	depends on USB_GADGET_DEBUG
+	help
+	   Many controller and gadget drivers will print verbose debugging
+	   messages if you use this option to ask for those messages.
+
+	   Avoid enabling these messages, even if you're actively
+	   debugging such a driver.  Many drivers will emit so many
+	   messages that the driver timings are affected, which will
+	   either create new failure modes or remove the one you're
+	   trying to track down.  Never enable these messages for a
+	   production build.
+
 config USB_GADGET_DEBUG_FILES
 	boolean "Debugging information files (DEVELOPMENT)"
 	depends on PROC_FS
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index f1bd42a2cbba..f1af39603d4d 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -1,7 +1,8 @@
 #
 # USB peripheral controller drivers
 #
-ccflags-$(CONFIG_USB_GADGET_DEBUG) := -DDEBUG
+ccflags-$(CONFIG_USB_GADGET_DEBUG)	:= -DDEBUG
+ccflags-$(CONFIG_USB_GADGET_VERBOSE)	+= -DVERBOSE_DEBUG
 
 obj-$(CONFIG_USB_GADGET)	+= udc-core.o
 obj-$(CONFIG_USB_LIBCOMPOSITE)	+= libcomposite.o
-- 
cgit 


From 7f4d1e7bdd9f293a522e5559f1b64a95c066c15e Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Fri, 11 Oct 2013 09:01:03 +0200
Subject: usb: phy: don't return with NULL from devm_usb_get_phy()

The callers are expecting an ERR_PTR value in case
of an error. Change he code to return with an encoded
-ENOMEM value in the case of a failed devres_alloc call.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/phy/phy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/phy/phy.c b/drivers/usb/phy/phy.c
index a9984c700d2c..1b74523e1fee 100644
--- a/drivers/usb/phy/phy.c
+++ b/drivers/usb/phy/phy.c
@@ -98,7 +98,7 @@ struct usb_phy *devm_usb_get_phy(struct device *dev, enum usb_phy_type type)
 
 	ptr = devres_alloc(devm_usb_phy_release, sizeof(*ptr), GFP_KERNEL);
 	if (!ptr)
-		return NULL;
+		return ERR_PTR(-ENOMEM);
 
 	phy = usb_get_phy(type);
 	if (!IS_ERR(phy)) {
-- 
cgit 


From 505975d3802f8d3a3c0905f38056213d06997b36 Mon Sep 17 00:00:00 2001
From: Matt Porter <mdp@ti.com>
Date: Tue, 10 Sep 2013 14:24:37 -0500
Subject: ARM: dts: AM33XX: Add EDMA support

Adds AM33XX EDMA support to the am33xx.dtsi as documented in
Documentation/devicetree/bindings/dma/ti-edma.txt

[Joel Fernandes <joelf@ti.com>]
Drop DT entries that are non-hardware-description as discussed in [1]

[1] https://patchwork.kernel.org/patch/2226761/

Signed-off-by: Matt Porter <mporter@ti.com>
Signed-off-by: Joel A Fernandes <joelagnel@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am33xx.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index a7731ead0b91..7a53e07e5a7a 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -105,6 +105,18 @@
 			reg = <0x48200000 0x1000>;
 		};
 
+		edma: edma@49000000 {
+			compatible = "ti,edma3";
+			ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2";
+			reg =	<0x49000000 0x10000>,
+				<0x44e10f90 0x10>;
+			interrupts = <12 13 14>;
+			#dma-cells = <1>;
+			dma-channels = <64>;
+			ti,edma-regions = <4>;
+			ti,edma-slots = <256>;
+		};
+
 		gpio0: gpio@44e07000 {
 			compatible = "ti,omap4-gpio";
 			ti,hwmods = "gpio1";
-- 
cgit 


From f5e2f807b730fa7f0683e515fe7483a5ebff9095 Mon Sep 17 00:00:00 2001
From: Matt Porter <mporter@ti.com>
Date: Tue, 10 Sep 2013 14:24:38 -0500
Subject: ARM: dts: AM33XX: Add SPI DMA support

Adds DMA resources to the AM33XX SPI nodes.

Signed-off-by: Matt Porter <mporter@ti.com>
Signed-off-by: Joel A Fernandes <joelagnel@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am33xx.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 7a53e07e5a7a..9cd60bf5edb5 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -340,6 +340,11 @@
 			interrupts = <65>;
 			ti,spi-num-cs = <2>;
 			ti,hwmods = "spi0";
+			dmas = <&edma 16
+				&edma 17
+				&edma 18
+				&edma 19>;
+			dma-names = "tx0", "rx0", "tx1", "rx1";
 			status = "disabled";
 		};
 
@@ -351,6 +356,11 @@
 			interrupts = <125>;
 			ti,spi-num-cs = <2>;
 			ti,hwmods = "spi1";
+			dmas = <&edma 42
+				&edma 43
+				&edma 44
+				&edma 45>;
+			dma-names = "tx0", "rx0", "tx1", "rx1";
 			status = "disabled";
 		};
 
-- 
cgit 


From 55b4452b4b7082ecf3cc2095bc21762a901a8ca2 Mon Sep 17 00:00:00 2001
From: Matt Porter <mporter@ti.com>
Date: Tue, 10 Sep 2013 14:24:39 -0500
Subject: ARM: dts: AM33XX: Add MMC support and documentation

Adds AM33XX MMC support for am335x-bone, am335x-evm and am335x-evmsk boards.

Also added is the DMA binding definitions based on the generic DMA request
binding.

Additional changes made to DTS:
* Interrupt, reg and compatible properties added
* ti,needs-special-hs-handling added

Signed-off-by: Matt Porter <mporter@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 .../devicetree/bindings/mmc/ti-omap-hsmmc.txt      | 26 ++++++++++++++-
 arch/arm/boot/dts/am335x-bone.dts                  | 11 +++++++
 arch/arm/boot/dts/am335x-evm.dts                   |  7 ++++
 arch/arm/boot/dts/am335x-evmsk.dts                 |  7 ++++
 arch/arm/boot/dts/am33xx.dtsi                      | 38 ++++++++++++++++++++++
 5 files changed, 88 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
index ed271fc255b2..8c8908ab84ba 100644
--- a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
+++ b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
@@ -20,8 +20,29 @@ ti,dual-volt: boolean, supports dual voltage cards
 ti,non-removable: non-removable slot (like eMMC)
 ti,needs-special-reset: Requires a special softreset sequence
 ti,needs-special-hs-handling: HSMMC IP needs special setting for handling High Speed
+dmas: List of DMA specifiers with the controller specific format
+as described in the generic DMA client binding. A tx and rx
+specifier is required.
+dma-names: List of DMA request names. These strings correspond
+1:1 with the DMA specifiers listed in dmas. The string naming is
+to be "rx" and "tx" for RX and TX DMA requests, respectively.
+
+Examples:
+
+[hwmod populated DMA resources]
+
+	mmc1: mmc@0x4809c000 {
+		compatible = "ti,omap4-hsmmc";
+		reg = <0x4809c000 0x400>;
+		ti,hwmods = "mmc1";
+		ti,dual-volt;
+		bus-width = <4>;
+		vmmc-supply = <&vmmc>; /* phandle to regulator node */
+		ti,non-removable;
+	};
+
+[generic DMA request binding]
 
-Example:
 	mmc1: mmc@0x4809c000 {
 		compatible = "ti,omap4-hsmmc";
 		reg = <0x4809c000 0x400>;
@@ -30,4 +51,7 @@ Example:
 		bus-width = <4>;
 		vmmc-supply = <&vmmc>; /* phandle to regulator node */
 		ti,non-removable;
+		dmas = <&edma 24
+			&edma 25>;
+		dma-names = "tx", "rx";
 	};
diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
index 7993c489982c..d5f43fe2bfe1 100644
--- a/arch/arm/boot/dts/am335x-bone.dts
+++ b/arch/arm/boot/dts/am335x-bone.dts
@@ -9,3 +9,14 @@
 
 #include "am33xx.dtsi"
 #include "am335x-bone-common.dtsi"
+
+&ldo3_reg {
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <3300000>;
+	regulator-always-on;
+};
+
+&mmc1 {
+	status = "okay";
+	vmmc-supply = <&ldo3_reg>;
+};
diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index e8ec8756e498..bc4a69d80fd8 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -477,6 +477,8 @@
 		};
 
 		vmmc_reg: regulator@12 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <3300000>;
 			regulator-always-on;
 		};
 	};
@@ -517,3 +519,8 @@
 		ti,adc-channels = <4 5 6 7>;
 	};
 };
+
+&mmc1 {
+	status = "okay";
+	vmmc-supply = <&vmmc_reg>;
+};
diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts
index 4f339fa91c57..55fd19487b8c 100644
--- a/arch/arm/boot/dts/am335x-evmsk.dts
+++ b/arch/arm/boot/dts/am335x-evmsk.dts
@@ -393,6 +393,8 @@
 		};
 
 		vmmc_reg: regulator@12 {
+			regulator-min-microvolt = <1800000>;
+			regulator-max-microvolt = <3300000>;
 			regulator-always-on;
 		};
 	};
@@ -419,3 +421,8 @@
 	phy_id = <&davinci_mdio>, <1>;
 	phy-mode = "rgmii-txid";
 };
+
+&mmc1 {
+	status = "okay";
+	vmmc-supply = <&vmmc_reg>;
+};
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 9cd60bf5edb5..553adc6b535e 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -245,6 +245,44 @@
 			status = "disabled";
 		};
 
+		mmc1: mmc@48060000 {
+			compatible = "ti,omap4-hsmmc";
+			ti,hwmods = "mmc1";
+			ti,dual-volt;
+			ti,needs-special-reset;
+			ti,needs-special-hs-handling;
+			dmas = <&edma 24
+				&edma 25>;
+			dma-names = "tx", "rx";
+			interrupts = <64>;
+			interrupt-parent = <&intc>;
+			reg = <0x48060000 0x1000>;
+			status = "disabled";
+		};
+
+		mmc2: mmc@481d8000 {
+			compatible = "ti,omap4-hsmmc";
+			ti,hwmods = "mmc2";
+			ti,needs-special-reset;
+			dmas = <&edma 2
+				&edma 3>;
+			dma-names = "tx", "rx";
+			interrupts = <28>;
+			interrupt-parent = <&intc>;
+			reg = <0x481d8000 0x1000>;
+			status = "disabled";
+		};
+
+		mmc3: mmc@47810000 {
+			compatible = "ti,omap4-hsmmc";
+			ti,hwmods = "mmc3";
+			ti,needs-special-reset;
+			interrupts = <29>;
+			interrupt-parent = <&intc>;
+			reg = <0x47810000 0x1000>;
+			status = "disabled";
+		};
+
 		wdt2: wdt@44e35000 {
 			compatible = "ti,omap3-wdt";
 			ti,hwmods = "wd_timer2";
-- 
cgit 


From 3045ffffcf5f334216ccb80697ac1a2ee5db179e Mon Sep 17 00:00:00 2001
From: Alexander Holler <holler@ahsoftware.de>
Date: Thu, 12 Sep 2013 20:35:32 +0200
Subject: ARM: dts: am335x-bone: add CD for mmc1

This enables the use of MMC cards even when no card was inserted at boot.

Signed-off-by: Alexander Holler <holler@ahsoftware.de>
Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Tested-by: Kevin Hilman <khilman@linaro.org>
Reviewed-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am335x-bone-common.dtsi | 14 ++++++++++++++
 arch/arm/boot/dts/am335x-bone.dts         |  1 -
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
index 2f66deda9f5c..0d95d54b6ae9 100644
--- a/arch/arm/boot/dts/am335x-bone-common.dtsi
+++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
@@ -107,6 +107,12 @@
 				0x14c (PIN_INPUT_PULLDOWN | MUX_MODE7)
 			>;
 		};
+
+		mmc1_pins: pinmux_mmc1_pins {
+			pinctrl-single,pins = <
+				0x160 (PIN_INPUT | MUX_MODE7) /* GPIO0_6 */
+			>;
+		};
 	};
 
 	ocp {
@@ -260,3 +266,11 @@
 	pinctrl-0 = <&davinci_mdio_default>;
 	pinctrl-1 = <&davinci_mdio_sleep>;
 };
+
+&mmc1 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc1_pins>;
+	cd-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>;
+	cd-inverted;
+};
diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
index d5f43fe2bfe1..0d6334875df8 100644
--- a/arch/arm/boot/dts/am335x-bone.dts
+++ b/arch/arm/boot/dts/am335x-bone.dts
@@ -17,6 +17,5 @@
 };
 
 &mmc1 {
-	status = "okay";
 	vmmc-supply = <&ldo3_reg>;
 };
-- 
cgit 


From 1aac4a990373cd53f75691e0901b029e29eb8190 Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen@dominion.thruhere.net>
Date: Thu, 12 Sep 2013 20:35:33 +0200
Subject: ARM: dts: am335x-boneblack: add eMMC DT entry

The pinmux is specified in am335x-bone-common.dtsi to be
reused by the eMMC cape.

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Tested-by: Kevin Hilman <khilman@linaro.org>
Reviewed-by: Nishanth Menon <nm@ti.com>
[bcousson@baylibre.com: Fix traling spaces and useless comments]
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am335x-bone-common.dtsi | 22 ++++++++++++++++++++++
 arch/arm/boot/dts/am335x-boneblack.dts    | 13 +++++++++++++
 2 files changed, 35 insertions(+)

diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
index 0d95d54b6ae9..c560cb7d3175 100644
--- a/arch/arm/boot/dts/am335x-bone-common.dtsi
+++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
@@ -113,6 +113,21 @@
 				0x160 (PIN_INPUT | MUX_MODE7) /* GPIO0_6 */
 			>;
 		};
+
+		emmc_pins: pinmux_emmc_pins {
+			pinctrl-single,pins = <
+				0x80 (PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_csn1.mmc1_clk */
+				0x84 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_csn2.mmc1_cmd */
+				0x00 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad0.mmc1_dat0 */
+				0x04 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad1.mmc1_dat1 */
+				0x08 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad2.mmc1_dat2 */
+				0x0c (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad3.mmc1_dat3 */
+				0x10 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad4.mmc1_dat4 */
+				0x14 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad5.mmc1_dat5 */
+				0x18 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad6.mmc1_dat6 */
+				0x1c (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad7.mmc1_dat7 */
+			>;
+		};
 	};
 
 	ocp {
@@ -242,6 +257,13 @@
 			regulator-always-on;
 		};
 	};
+
+	vmmcsd_fixed: fixedregulator@0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vmmcsd_fixed";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
 };
 
 &cpsw_emac0 {
diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts
index 197cadf72d2c..16b3bea61d46 100644
--- a/arch/arm/boot/dts/am335x-boneblack.dts
+++ b/arch/arm/boot/dts/am335x-boneblack.dts
@@ -15,3 +15,16 @@
 	regulator-max-microvolt = <1800000>;
 	regulator-always-on;
 };
+
+&mmc1 {
+	vmmc-supply = <&vmmcsd_fixed>;
+};
+
+&mmc2 {
+	vmmc-supply = <&vmmcsd_fixed>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&emmc_pins>;
+	bus-width = <8>;
+	status = "okay";
+	ti,vcc-aux-disable-is-sleep;
+};
-- 
cgit 


From 757a90e66c4828ec60a13792c2774488a28ae98d Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen@dominion.thruhere.net>
Date: Thu, 12 Sep 2013 20:35:34 +0200
Subject: ARM: dts: am335x-bone-common: switch mmc1 to 4-bit mode

The micro-SD slot hooks up all four data pins so lets' use them.

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Tested-by: Kevin Hilman <khilman@linaro.org>
Reviewed-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am335x-bone-common.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
index c560cb7d3175..fbb11dd76f08 100644
--- a/arch/arm/boot/dts/am335x-bone-common.dtsi
+++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
@@ -291,6 +291,7 @@
 
 &mmc1 {
 	status = "okay";
+	bus-width = <0x4>;
 	pinctrl-names = "default";
 	pinctrl-0 = <&mmc1_pins>;
 	cd-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>;
-- 
cgit 


From ec8a75979f199fd6fdcf24f8d1c928a48c61483e Mon Sep 17 00:00:00 2001
From: Koen Kooi <koen@dominion.thruhere.net>
Date: Thu, 12 Sep 2013 20:35:35 +0200
Subject: ARM: dts: am335x-bone-common: add cpu0 and mmc1 triggers

This matches the vendor 3.8.x configuration that is shipping
with the boards.

The LED layout is now:
 USR0: heartbeat
 USR1: mmc0 (micro-SD slot)
 USR2: cpu0
 USR3: mmc1 (eMMC)

The cpu0 triggers was put in between the mmc triggers to make
is easier to see where the disk activity is.

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
Tested-by: Kevin Hilman <khilman@linaro.org>
Reviewed-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am335x-bone-common.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
index fbb11dd76f08..56361ceb418b 100644
--- a/arch/arm/boot/dts/am335x-bone-common.dtsi
+++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
@@ -204,12 +204,14 @@
 		led@4 {
 			label = "beaglebone:green:usr2";
 			gpios = <&gpio1 23 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "cpu0";
 			default-state = "off";
 		};
 
 		led@5 {
 			label = "beaglebone:green:usr3";
 			gpios = <&gpio1 24 GPIO_ACTIVE_HIGH>;
+			linux,default-trigger = "mmc1";
 			default-state = "off";
 		};
 	};
-- 
cgit 


From 82d75afcb718dc8fe9fcd71959bff7878df53076 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Fri, 20 Sep 2013 17:00:00 +0200
Subject: ARM: dts: AM33XX: use pinmux node defined in included file

am33xx boards DTS include the am33xx.dtsi Device Tree
source file that already define a pinmux device node for
the AM33XX SoC Pin Multiplex.

Redefining this for each board makes the Device Tree files
harder to modify and maintain so let's just use what is
already defined in the included .dtsi file.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am335x-bone-common.dtsi | 218 ++++++++++++-------------
 arch/arm/boot/dts/am335x-evm.dts          | 254 ++++++++++++++---------------
 arch/arm/boot/dts/am335x-evmsk.dts        | 258 +++++++++++++++---------------
 3 files changed, 365 insertions(+), 365 deletions(-)

diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
index 56361ceb418b..29799ac3423a 100644
--- a/arch/arm/boot/dts/am335x-bone-common.dtsi
+++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
@@ -21,115 +21,6 @@
 		reg = <0x80000000 0x10000000>; /* 256 MB */
 	};
 
-	am33xx_pinmux: pinmux@44e10800 {
-		pinctrl-names = "default";
-		pinctrl-0 = <&clkout2_pin>;
-
-		user_leds_s0: user_leds_s0 {
-			pinctrl-single,pins = <
-				0x54 (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpmc_a5.gpio1_21 */
-				0x58 (PIN_OUTPUT_PULLUP | MUX_MODE7)	/* gpmc_a6.gpio1_22 */
-				0x5c (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpmc_a7.gpio1_23 */
-				0x60 (PIN_OUTPUT_PULLUP | MUX_MODE7)	/* gpmc_a8.gpio1_24 */
-			>;
-		};
-
-		i2c0_pins: pinmux_i2c0_pins {
-			pinctrl-single,pins = <
-				0x188 (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c0_sda.i2c0_sda */
-				0x18c (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c0_scl.i2c0_scl */
-			>;
-		};
-
-		uart0_pins: pinmux_uart0_pins {
-			pinctrl-single,pins = <
-				0x170 (PIN_INPUT_PULLUP | MUX_MODE0)	/* uart0_rxd.uart0_rxd */
-				0x174 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* uart0_txd.uart0_txd */
-			>;
-		};
-
-		clkout2_pin: pinmux_clkout2_pin {
-			pinctrl-single,pins = <
-				0x1b4 (PIN_OUTPUT_PULLDOWN | MUX_MODE3)	/* xdma_event_intr1.clkout2 */
-			>;
-		};
-
-		cpsw_default: cpsw_default {
-			pinctrl-single,pins = <
-				/* Slave 1 */
-				0x110 (PIN_INPUT_PULLUP | MUX_MODE0)	/* mii1_rxerr.mii1_rxerr */
-				0x114 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* mii1_txen.mii1_txen */
-				0x118 (PIN_INPUT_PULLUP | MUX_MODE0)	/* mii1_rxdv.mii1_rxdv */
-				0x11c (PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* mii1_txd3.mii1_txd3 */
-				0x120 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* mii1_txd2.mii1_txd2 */
-				0x124 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* mii1_txd1.mii1_txd1 */
-				0x128 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* mii1_txd0.mii1_txd0 */
-				0x12c (PIN_INPUT_PULLUP | MUX_MODE0)	/* mii1_txclk.mii1_txclk */
-				0x130 (PIN_INPUT_PULLUP | MUX_MODE0)	/* mii1_rxclk.mii1_rxclk */
-				0x134 (PIN_INPUT_PULLUP | MUX_MODE0)	/* mii1_rxd3.mii1_rxd3 */
-				0x138 (PIN_INPUT_PULLUP | MUX_MODE0)	/* mii1_rxd2.mii1_rxd2 */
-				0x13c (PIN_INPUT_PULLUP | MUX_MODE0)	/* mii1_rxd1.mii1_rxd1 */
-				0x140 (PIN_INPUT_PULLUP | MUX_MODE0)	/* mii1_rxd0.mii1_rxd0 */
-			>;
-		};
-
-		cpsw_sleep: cpsw_sleep {
-			pinctrl-single,pins = <
-				/* Slave 1 reset value */
-				0x110 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x114 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x118 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x11c (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x120 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x124 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x128 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x12c (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x130 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x134 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x138 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x13c (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x140 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-			>;
-		};
-
-		davinci_mdio_default: davinci_mdio_default {
-			pinctrl-single,pins = <
-				/* MDIO */
-				0x148 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)	/* mdio_data.mdio_data */
-				0x14c (PIN_OUTPUT_PULLUP | MUX_MODE0)			/* mdio_clk.mdio_clk */
-			>;
-		};
-
-		davinci_mdio_sleep: davinci_mdio_sleep {
-			pinctrl-single,pins = <
-				/* MDIO reset value */
-				0x148 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x14c (PIN_INPUT_PULLDOWN | MUX_MODE7)
-			>;
-		};
-
-		mmc1_pins: pinmux_mmc1_pins {
-			pinctrl-single,pins = <
-				0x160 (PIN_INPUT | MUX_MODE7) /* GPIO0_6 */
-			>;
-		};
-
-		emmc_pins: pinmux_emmc_pins {
-			pinctrl-single,pins = <
-				0x80 (PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_csn1.mmc1_clk */
-				0x84 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_csn2.mmc1_cmd */
-				0x00 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad0.mmc1_dat0 */
-				0x04 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad1.mmc1_dat1 */
-				0x08 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad2.mmc1_dat2 */
-				0x0c (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad3.mmc1_dat3 */
-				0x10 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad4.mmc1_dat4 */
-				0x14 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad5.mmc1_dat5 */
-				0x18 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad6.mmc1_dat6 */
-				0x1c (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad7.mmc1_dat7 */
-			>;
-		};
-	};
-
 	ocp {
 		uart0: serial@44e09000 {
 			pinctrl-names = "default";
@@ -217,6 +108,115 @@
 	};
 };
 
+&am33xx_pinmux {
+	pinctrl-names = "default";
+	pinctrl-0 = <&clkout2_pin>;
+
+	user_leds_s0: user_leds_s0 {
+		pinctrl-single,pins = <
+			0x54 (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpmc_a5.gpio1_21 */
+			0x58 (PIN_OUTPUT_PULLUP | MUX_MODE7)	/* gpmc_a6.gpio1_22 */
+			0x5c (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpmc_a7.gpio1_23 */
+			0x60 (PIN_OUTPUT_PULLUP | MUX_MODE7)	/* gpmc_a8.gpio1_24 */
+		>;
+	};
+
+	i2c0_pins: pinmux_i2c0_pins {
+		pinctrl-single,pins = <
+			0x188 (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c0_sda.i2c0_sda */
+			0x18c (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c0_scl.i2c0_scl */
+		>;
+	};
+
+	uart0_pins: pinmux_uart0_pins {
+		pinctrl-single,pins = <
+			0x170 (PIN_INPUT_PULLUP | MUX_MODE0)	/* uart0_rxd.uart0_rxd */
+			0x174 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* uart0_txd.uart0_txd */
+		>;
+	};
+
+	clkout2_pin: pinmux_clkout2_pin {
+		pinctrl-single,pins = <
+			0x1b4 (PIN_OUTPUT_PULLDOWN | MUX_MODE3)	/* xdma_event_intr1.clkout2 */
+		>;
+	};
+
+	cpsw_default: cpsw_default {
+		pinctrl-single,pins = <
+			/* Slave 1 */
+			0x110 (PIN_INPUT_PULLUP | MUX_MODE0)	/* mii1_rxerr.mii1_rxerr */
+			0x114 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* mii1_txen.mii1_txen */
+			0x118 (PIN_INPUT_PULLUP | MUX_MODE0)	/* mii1_rxdv.mii1_rxdv */
+			0x11c (PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* mii1_txd3.mii1_txd3 */
+			0x120 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* mii1_txd2.mii1_txd2 */
+			0x124 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* mii1_txd1.mii1_txd1 */
+			0x128 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* mii1_txd0.mii1_txd0 */
+			0x12c (PIN_INPUT_PULLUP | MUX_MODE0)	/* mii1_txclk.mii1_txclk */
+			0x130 (PIN_INPUT_PULLUP | MUX_MODE0)	/* mii1_rxclk.mii1_rxclk */
+			0x134 (PIN_INPUT_PULLUP | MUX_MODE0)	/* mii1_rxd3.mii1_rxd3 */
+			0x138 (PIN_INPUT_PULLUP | MUX_MODE0)	/* mii1_rxd2.mii1_rxd2 */
+			0x13c (PIN_INPUT_PULLUP | MUX_MODE0)	/* mii1_rxd1.mii1_rxd1 */
+			0x140 (PIN_INPUT_PULLUP | MUX_MODE0)	/* mii1_rxd0.mii1_rxd0 */
+		>;
+	};
+
+	cpsw_sleep: cpsw_sleep {
+		pinctrl-single,pins = <
+			/* Slave 1 reset value */
+			0x110 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x114 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x118 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x11c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x120 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x124 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x128 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x12c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x130 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x134 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x138 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x13c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x140 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+		>;
+	};
+
+	davinci_mdio_default: davinci_mdio_default {
+		pinctrl-single,pins = <
+			/* MDIO */
+			0x148 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)	/* mdio_data.mdio_data */
+			0x14c (PIN_OUTPUT_PULLUP | MUX_MODE0)			/* mdio_clk.mdio_clk */
+		>;
+	};
+
+	davinci_mdio_sleep: davinci_mdio_sleep {
+		pinctrl-single,pins = <
+			/* MDIO reset value */
+			0x148 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x14c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+		>;
+	};
+
+	mmc1_pins: pinmux_mmc1_pins {
+		pinctrl-single,pins = <
+			0x160 (PIN_INPUT | MUX_MODE7) /* GPIO0_6 */
+		>;
+	};
+
+	emmc_pins: pinmux_emmc_pins {
+		pinctrl-single,pins = <
+			0x80 (PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_csn1.mmc1_clk */
+			0x84 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_csn2.mmc1_cmd */
+			0x00 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad0.mmc1_dat0 */
+			0x04 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad1.mmc1_dat1 */
+			0x08 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad2.mmc1_dat2 */
+			0x0c (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad3.mmc1_dat3 */
+			0x10 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad4.mmc1_dat4 */
+			0x14 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad5.mmc1_dat5 */
+			0x18 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad6.mmc1_dat6 */
+			0x1c (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad7.mmc1_dat7 */
+		>;
+	};
+};
+
 /include/ "tps65217.dtsi"
 
 &tps {
diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index bc4a69d80fd8..1525cd6d4844 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -24,133 +24,6 @@
 		reg = <0x80000000 0x10000000>; /* 256 MB */
 	};
 
-	am33xx_pinmux: pinmux@44e10800 {
-		pinctrl-names = "default";
-		pinctrl-0 = <&matrix_keypad_s0 &volume_keys_s0 &clkout2_pin>;
-
-		matrix_keypad_s0: matrix_keypad_s0 {
-			pinctrl-single,pins = <
-				0x54 (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpmc_a5.gpio1_21 */
-				0x58 (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpmc_a6.gpio1_22 */
-				0x64 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_a9.gpio1_25 */
-				0x68 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_a10.gpio1_26 */
-				0x6c (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_a11.gpio1_27 */
-			>;
-		};
-
-		volume_keys_s0: volume_keys_s0 {
-			pinctrl-single,pins = <
-				0x150 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* spi0_sclk.gpio0_2 */
-				0x154 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* spi0_d0.gpio0_3 */
-			>;
-		};
-
-		i2c0_pins: pinmux_i2c0_pins {
-			pinctrl-single,pins = <
-				0x188 (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c0_sda.i2c0_sda */
-				0x18c (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c0_scl.i2c0_scl */
-			>;
-		};
-
-		i2c1_pins: pinmux_i2c1_pins {
-			pinctrl-single,pins = <
-				0x158 (PIN_INPUT_PULLUP | MUX_MODE2)	/* spi0_d1.i2c1_sda */
-				0x15c (PIN_INPUT_PULLUP | MUX_MODE2)	/* spi0_cs0.i2c1_scl */
-			>;
-		};
-
-		uart0_pins: pinmux_uart0_pins {
-			pinctrl-single,pins = <
-				0x170 (PIN_INPUT_PULLUP | MUX_MODE0)	/* uart0_rxd.uart0_rxd */
-				0x174 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* uart0_txd.uart0_txd */
-			>;
-		};
-
-		clkout2_pin: pinmux_clkout2_pin {
-			pinctrl-single,pins = <
-				0x1b4 (PIN_OUTPUT_PULLDOWN | MUX_MODE3)	/* xdma_event_intr1.clkout2 */
-			>;
-		};
-
-		nandflash_pins_s0: nandflash_pins_s0 {
-			pinctrl-single,pins = <
-				0x0 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad0.gpmc_ad0 */
-				0x4 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad1.gpmc_ad1 */
-				0x8 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad2.gpmc_ad2 */
-				0xc (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad3.gpmc_ad3 */
-				0x10 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad4.gpmc_ad4 */
-				0x14 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad5.gpmc_ad5 */
-				0x18 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad6.gpmc_ad6 */
-				0x1c (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad7.gpmc_ad7 */
-				0x70 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_wait0.gpmc_wait0 */
-				0x74 (PIN_INPUT_PULLUP | MUX_MODE7)	/* gpmc_wpn.gpio0_30 */
-				0x7c (PIN_OUTPUT | MUX_MODE0)		/* gpmc_csn0.gpmc_csn0  */
-				0x90 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_advn_ale.gpmc_advn_ale */
-				0x94 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_oen_ren.gpmc_oen_ren */
-				0x98 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_wen.gpmc_wen */
-				0x9c (PIN_OUTPUT | MUX_MODE0)		/* gpmc_be0n_cle.gpmc_be0n_cle */
-			>;
-		};
-
-		ecap0_pins: backlight_pins {
-			pinctrl-single,pins = <
-				0x164 0x0	/* eCAP0_in_PWM0_out.eCAP0_in_PWM0_out MODE0 */
-			>;
-		};
-
-		cpsw_default: cpsw_default {
-			pinctrl-single,pins = <
-				/* Slave 1 */
-				0x114 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txen.rgmii1_tctl */
-				0x118 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxdv.rgmii1_rctl */
-				0x11c (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd3.rgmii1_td3 */
-				0x120 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd2.rgmii1_td2 */
-				0x124 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd1.rgmii1_td1 */
-				0x128 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd0.rgmii1_td0 */
-				0x12c (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txclk.rgmii1_tclk */
-				0x130 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxclk.rgmii1_rclk */
-				0x134 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd3.rgmii1_rd3 */
-				0x138 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd2.rgmii1_rd2 */
-				0x13c (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd1.rgmii1_rd1 */
-				0x140 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd0.rgmii1_rd0 */
-			>;
-		};
-
-		cpsw_sleep: cpsw_sleep {
-			pinctrl-single,pins = <
-				/* Slave 1 reset value */
-				0x114 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x118 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x11c (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x120 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x124 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x128 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x12c (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x130 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x134 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x138 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x13c (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x140 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-			>;
-		};
-
-		davinci_mdio_default: davinci_mdio_default {
-			pinctrl-single,pins = <
-				/* MDIO */
-				0x148 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)	/* mdio_data.mdio_data */
-				0x14c (PIN_OUTPUT_PULLUP | MUX_MODE0)			/* mdio_clk.mdio_clk */
-			>;
-		};
-
-		davinci_mdio_sleep: davinci_mdio_sleep {
-			pinctrl-single,pins = <
-				/* MDIO reset value */
-				0x148 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x14c (PIN_INPUT_PULLDOWN | MUX_MODE7)
-			>;
-		};
-	};
-
 	ocp {
 		uart0: serial@44e09000 {
 			pinctrl-names = "default";
@@ -405,6 +278,133 @@
 	};
 };
 
+&am33xx_pinmux {
+	pinctrl-names = "default";
+	pinctrl-0 = <&matrix_keypad_s0 &volume_keys_s0 &clkout2_pin>;
+
+	matrix_keypad_s0: matrix_keypad_s0 {
+		pinctrl-single,pins = <
+			0x54 (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpmc_a5.gpio1_21 */
+			0x58 (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpmc_a6.gpio1_22 */
+			0x64 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_a9.gpio1_25 */
+			0x68 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_a10.gpio1_26 */
+			0x6c (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_a11.gpio1_27 */
+		>;
+	};
+
+	volume_keys_s0: volume_keys_s0 {
+		pinctrl-single,pins = <
+			0x150 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* spi0_sclk.gpio0_2 */
+			0x154 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* spi0_d0.gpio0_3 */
+		>;
+	};
+
+	i2c0_pins: pinmux_i2c0_pins {
+		pinctrl-single,pins = <
+			0x188 (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c0_sda.i2c0_sda */
+			0x18c (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c0_scl.i2c0_scl */
+		>;
+	};
+
+	i2c1_pins: pinmux_i2c1_pins {
+		pinctrl-single,pins = <
+			0x158 (PIN_INPUT_PULLUP | MUX_MODE2)	/* spi0_d1.i2c1_sda */
+			0x15c (PIN_INPUT_PULLUP | MUX_MODE2)	/* spi0_cs0.i2c1_scl */
+		>;
+	};
+
+	uart0_pins: pinmux_uart0_pins {
+		pinctrl-single,pins = <
+			0x170 (PIN_INPUT_PULLUP | MUX_MODE0)	/* uart0_rxd.uart0_rxd */
+			0x174 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* uart0_txd.uart0_txd */
+		>;
+	};
+
+	clkout2_pin: pinmux_clkout2_pin {
+		pinctrl-single,pins = <
+			0x1b4 (PIN_OUTPUT_PULLDOWN | MUX_MODE3)	/* xdma_event_intr1.clkout2 */
+		>;
+	};
+
+	nandflash_pins_s0: nandflash_pins_s0 {
+		pinctrl-single,pins = <
+			0x0 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad0.gpmc_ad0 */
+			0x4 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad1.gpmc_ad1 */
+			0x8 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad2.gpmc_ad2 */
+			0xc (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad3.gpmc_ad3 */
+			0x10 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad4.gpmc_ad4 */
+			0x14 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad5.gpmc_ad5 */
+			0x18 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad6.gpmc_ad6 */
+			0x1c (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad7.gpmc_ad7 */
+			0x70 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_wait0.gpmc_wait0 */
+			0x74 (PIN_INPUT_PULLUP | MUX_MODE7)	/* gpmc_wpn.gpio0_30 */
+			0x7c (PIN_OUTPUT | MUX_MODE0)		/* gpmc_csn0.gpmc_csn0  */
+			0x90 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_advn_ale.gpmc_advn_ale */
+			0x94 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_oen_ren.gpmc_oen_ren */
+			0x98 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_wen.gpmc_wen */
+			0x9c (PIN_OUTPUT | MUX_MODE0)		/* gpmc_be0n_cle.gpmc_be0n_cle */
+		>;
+	};
+
+	ecap0_pins: backlight_pins {
+		pinctrl-single,pins = <
+			0x164 0x0	/* eCAP0_in_PWM0_out.eCAP0_in_PWM0_out MODE0 */
+		>;
+	};
+
+	cpsw_default: cpsw_default {
+		pinctrl-single,pins = <
+			/* Slave 1 */
+			0x114 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txen.rgmii1_tctl */
+			0x118 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxdv.rgmii1_rctl */
+			0x11c (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd3.rgmii1_td3 */
+			0x120 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd2.rgmii1_td2 */
+			0x124 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd1.rgmii1_td1 */
+			0x128 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd0.rgmii1_td0 */
+			0x12c (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txclk.rgmii1_tclk */
+			0x130 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxclk.rgmii1_rclk */
+			0x134 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd3.rgmii1_rd3 */
+			0x138 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd2.rgmii1_rd2 */
+			0x13c (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd1.rgmii1_rd1 */
+			0x140 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd0.rgmii1_rd0 */
+		>;
+	};
+
+	cpsw_sleep: cpsw_sleep {
+		pinctrl-single,pins = <
+			/* Slave 1 reset value */
+			0x114 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x118 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x11c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x120 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x124 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x128 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x12c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x130 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x134 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x138 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x13c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x140 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+		>;
+	};
+
+	davinci_mdio_default: davinci_mdio_default {
+		pinctrl-single,pins = <
+			/* MDIO */
+			0x148 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)	/* mdio_data.mdio_data */
+			0x14c (PIN_OUTPUT_PULLUP | MUX_MODE0)			/* mdio_clk.mdio_clk */
+		>;
+	};
+
+	davinci_mdio_sleep: davinci_mdio_sleep {
+		pinctrl-single,pins = <
+			/* MDIO reset value */
+			0x148 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x14c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+		>;
+	};
+};
+
 #include "tps65910.dtsi"
 
 &tps {
diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts
index 55fd19487b8c..f0066fe5d739 100644
--- a/arch/arm/boot/dts/am335x-evmsk.dts
+++ b/arch/arm/boot/dts/am335x-evmsk.dts
@@ -31,135 +31,6 @@
 		reg = <0x80000000 0x10000000>; /* 256 MB */
 	};
 
-	am33xx_pinmux: pinmux@44e10800 {
-		pinctrl-names = "default";
-		pinctrl-0 = <&gpio_keys_s0 &clkout2_pin>;
-
-		user_leds_s0: user_leds_s0 {
-			pinctrl-single,pins = <
-				0x10 (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpmc_ad4.gpio1_4 */
-				0x14 (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpmc_ad5.gpio1_5 */
-				0x18 (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpmc_ad6.gpio1_6 */
-				0x1c (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpmc_ad7.gpio1_7 */
-			>;
-		};
-
-		gpio_keys_s0: gpio_keys_s0 {
-			pinctrl-single,pins = <
-				0x94 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_oen_ren.gpio2_3 */
-				0x90 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_advn_ale.gpio2_2 */
-				0x70 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_wait0.gpio0_30 */
-				0x9c (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_ben0_cle.gpio2_5 */
-			>;
-		};
-
-		i2c0_pins: pinmux_i2c0_pins {
-			pinctrl-single,pins = <
-				0x188 (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c0_sda.i2c0_sda */
-				0x18c (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c0_scl.i2c0_scl */
-			>;
-		};
-
-		uart0_pins: pinmux_uart0_pins {
-			pinctrl-single,pins = <
-				0x170 (PIN_INPUT_PULLUP | MUX_MODE0)	/* uart0_rxd.uart0_rxd */
-				0x174 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)		/* uart0_txd.uart0_txd */
-			>;
-		};
-
-		clkout2_pin: pinmux_clkout2_pin {
-			pinctrl-single,pins = <
-				0x1b4 (PIN_OUTPUT_PULLDOWN | MUX_MODE3)		/* xdma_event_intr1.clkout2 */
-			>;
-		};
-
-		ecap2_pins: backlight_pins {
-			pinctrl-single,pins = <
-				0x19c 0x4	/* mcasp0_ahclkr.ecap2_in_pwm2_out MODE4 */
-			>;
-		};
-
-		cpsw_default: cpsw_default {
-			pinctrl-single,pins = <
-				/* Slave 1 */
-				0x114 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txen.rgmii1_tctl */
-				0x118 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxdv.rgmii1_rctl */
-				0x11c (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd3.rgmii1_td3 */
-				0x120 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd2.rgmii1_td2 */
-				0x124 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd1.rgmii1_td1 */
-				0x128 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd0.rgmii1_td0 */
-				0x12c (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txclk.rgmii1_tclk */
-				0x130 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxclk.rgmii1_rclk */
-				0x134 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd3.rgmii1_rd3 */
-				0x138 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd2.rgmii1_rd2 */
-				0x13c (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd1.rgmii1_rd1 */
-				0x140 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd0.rgmii1_rd0 */
-
-				/* Slave 2 */
-				0x40 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a0.rgmii2_tctl */
-				0x44 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a1.rgmii2_rctl */
-				0x48 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a2.rgmii2_td3 */
-				0x4c (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a3.rgmii2_td2 */
-				0x50 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a4.rgmii2_td1 */
-				0x54 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a5.rgmii2_td0 */
-				0x58 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a6.rgmii2_tclk */
-				0x5c (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a7.rgmii2_rclk */
-				0x60 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a8.rgmii2_rd3 */
-				0x64 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a9.rgmii2_rd2 */
-				0x68 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a10.rgmii2_rd1 */
-				0x6c (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a11.rgmii2_rd0 */
-			>;
-		};
-
-		cpsw_sleep: cpsw_sleep {
-			pinctrl-single,pins = <
-				/* Slave 1 reset value */
-				0x114 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x118 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x11c (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x120 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x124 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x128 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x12c (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x130 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x134 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x138 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x13c (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x140 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-
-				/* Slave 2 reset value*/
-				0x40 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x44 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x48 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x4c (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x50 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x54 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x58 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x5c (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x60 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x64 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x68 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x6c (PIN_INPUT_PULLDOWN | MUX_MODE7)
-			>;
-		};
-
-		davinci_mdio_default: davinci_mdio_default {
-			pinctrl-single,pins = <
-				/* MDIO */
-				0x148 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)	/* mdio_data.mdio_data */
-				0x14c (PIN_OUTPUT_PULLUP | MUX_MODE0)			/* mdio_clk.mdio_clk */
-			>;
-		};
-
-		davinci_mdio_sleep: davinci_mdio_sleep {
-			pinctrl-single,pins = <
-				/* MDIO reset value */
-				0x148 (PIN_INPUT_PULLDOWN | MUX_MODE7)
-				0x14c (PIN_INPUT_PULLDOWN | MUX_MODE7)
-			>;
-		};
-	};
-
 	ocp {
 		uart0: serial@44e09000 {
 			pinctrl-names = "default";
@@ -321,6 +192,135 @@
 	};
 };
 
+&am33xx_pinmux {
+	pinctrl-names = "default";
+	pinctrl-0 = <&gpio_keys_s0 &clkout2_pin>;
+
+	user_leds_s0: user_leds_s0 {
+		pinctrl-single,pins = <
+			0x10 (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpmc_ad4.gpio1_4 */
+			0x14 (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpmc_ad5.gpio1_5 */
+			0x18 (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpmc_ad6.gpio1_6 */
+			0x1c (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpmc_ad7.gpio1_7 */
+		>;
+	};
+
+	gpio_keys_s0: gpio_keys_s0 {
+		pinctrl-single,pins = <
+			0x94 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_oen_ren.gpio2_3 */
+			0x90 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_advn_ale.gpio2_2 */
+			0x70 (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_wait0.gpio0_30 */
+			0x9c (PIN_INPUT_PULLDOWN | MUX_MODE7)	/* gpmc_ben0_cle.gpio2_5 */
+		>;
+	};
+
+	i2c0_pins: pinmux_i2c0_pins {
+		pinctrl-single,pins = <
+			0x188 (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c0_sda.i2c0_sda */
+			0x18c (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c0_scl.i2c0_scl */
+		>;
+	};
+
+	uart0_pins: pinmux_uart0_pins {
+		pinctrl-single,pins = <
+			0x170 (PIN_INPUT_PULLUP | MUX_MODE0)	/* uart0_rxd.uart0_rxd */
+			0x174 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)		/* uart0_txd.uart0_txd */
+		>;
+	};
+
+	clkout2_pin: pinmux_clkout2_pin {
+		pinctrl-single,pins = <
+			0x1b4 (PIN_OUTPUT_PULLDOWN | MUX_MODE3)		/* xdma_event_intr1.clkout2 */
+		>;
+	};
+
+	ecap2_pins: backlight_pins {
+		pinctrl-single,pins = <
+			0x19c 0x4	/* mcasp0_ahclkr.ecap2_in_pwm2_out MODE4 */
+		>;
+	};
+
+	cpsw_default: cpsw_default {
+		pinctrl-single,pins = <
+			/* Slave 1 */
+			0x114 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txen.rgmii1_tctl */
+			0x118 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxdv.rgmii1_rctl */
+			0x11c (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd3.rgmii1_td3 */
+			0x120 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd2.rgmii1_td2 */
+			0x124 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd1.rgmii1_td1 */
+			0x128 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txd0.rgmii1_td0 */
+			0x12c (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* mii1_txclk.rgmii1_tclk */
+			0x130 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxclk.rgmii1_rclk */
+			0x134 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd3.rgmii1_rd3 */
+			0x138 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd2.rgmii1_rd2 */
+			0x13c (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd1.rgmii1_rd1 */
+			0x140 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* mii1_rxd0.rgmii1_rd0 */
+
+			/* Slave 2 */
+			0x40 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a0.rgmii2_tctl */
+			0x44 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a1.rgmii2_rctl */
+			0x48 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a2.rgmii2_td3 */
+			0x4c (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a3.rgmii2_td2 */
+			0x50 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a4.rgmii2_td1 */
+			0x54 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a5.rgmii2_td0 */
+			0x58 (PIN_OUTPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a6.rgmii2_tclk */
+			0x5c (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a7.rgmii2_rclk */
+			0x60 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a8.rgmii2_rd3 */
+			0x64 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a9.rgmii2_rd2 */
+			0x68 (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a10.rgmii2_rd1 */
+			0x6c (PIN_INPUT_PULLDOWN | MUX_MODE2)	/* gpmc_a11.rgmii2_rd0 */
+		>;
+	};
+
+	cpsw_sleep: cpsw_sleep {
+		pinctrl-single,pins = <
+			/* Slave 1 reset value */
+			0x114 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x118 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x11c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x120 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x124 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x128 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x12c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x130 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x134 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x138 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x13c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x140 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+
+			/* Slave 2 reset value*/
+			0x40 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x44 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x48 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x4c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x50 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x54 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x58 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x5c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x60 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x64 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x68 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x6c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+		>;
+	};
+
+	davinci_mdio_default: davinci_mdio_default {
+		pinctrl-single,pins = <
+			/* MDIO */
+			0x148 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)	/* mdio_data.mdio_data */
+			0x14c (PIN_OUTPUT_PULLUP | MUX_MODE0)			/* mdio_clk.mdio_clk */
+		>;
+	};
+
+	davinci_mdio_sleep: davinci_mdio_sleep {
+		pinctrl-single,pins = <
+			/* MDIO reset value */
+			0x148 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			0x14c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+		>;
+	};
+};
+
 #include "tps65910.dtsi"
 
 &tps {
-- 
cgit 


From e0efaafbb5ba9bffe44c0ae838e5fd81632868b7 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Fri, 20 Sep 2013 17:42:19 +0200
Subject: ARM: dts: AM33XX: don't redefine OCP bus and device nodes

The On Chip Peripherals (OCP) device node is a simplified
representation of the AM33XX SoC interconnect. An OCP dev
node is already defined in the am33xx.dtsi Device Tree
source file included by am33xx based boards so there is
no need to redefine this on each board DT file.

Also, the OCP and IP modules directly connected to it are SoC
internal details that is better to keep outside of board files.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am335x-bone-common.dtsi | 100 ++++----
 arch/arm/boot/dts/am335x-evm.dts          | 380 +++++++++++++++---------------
 arch/arm/boot/dts/am335x-evmsk.dts        | 148 ++++++------
 3 files changed, 311 insertions(+), 317 deletions(-)

diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
index 29799ac3423a..ff5c3cafbdff 100644
--- a/arch/arm/boot/dts/am335x-bone-common.dtsi
+++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
@@ -21,57 +21,6 @@
 		reg = <0x80000000 0x10000000>; /* 256 MB */
 	};
 
-	ocp {
-		uart0: serial@44e09000 {
-			pinctrl-names = "default";
-			pinctrl-0 = <&uart0_pins>;
-
-			status = "okay";
-		};
-
-		musb: usb@47400000 {
-			status = "okay";
-
-			control@44e10000 {
-				status = "okay";
-			};
-
-			usb-phy@47401300 {
-				status = "okay";
-			};
-
-			usb-phy@47401b00 {
-				status = "okay";
-			};
-
-			usb@47401000 {
-				status = "okay";
-			};
-
-			usb@47401800 {
-				status = "okay";
-				dr_mode = "host";
-			};
-
-			dma-controller@07402000  {
-				status = "okay";
-			};
-		};
-
-		i2c0: i2c@44e0b000 {
-			pinctrl-names = "default";
-			pinctrl-0 = <&i2c0_pins>;
-
-			status = "okay";
-			clock-frequency = <400000>;
-
-			tps: tps@24 {
-				reg = <0x24>;
-			};
-
-		};
-	};
-
 	leds {
 		pinctrl-names = "default";
 		pinctrl-0 = <&user_leds_s0>;
@@ -217,6 +166,55 @@
 	};
 };
 
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins>;
+
+	status = "okay";
+};
+
+&usb {
+	status = "okay";
+
+	control@44e10000 {
+		status = "okay";
+	};
+
+	usb-phy@47401300 {
+		status = "okay";
+	};
+
+	usb-phy@47401b00 {
+		status = "okay";
+	};
+
+	usb@47401000 {
+		status = "okay";
+	};
+
+	usb@47401800 {
+		status = "okay";
+		dr_mode = "host";
+	};
+
+	dma-controller@07402000  {
+		status = "okay";
+	};
+};
+
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins>;
+
+	status = "okay";
+	clock-frequency = <400000>;
+
+	tps: tps@24 {
+		reg = <0x24>;
+	};
+
+};
+
 /include/ "tps65217.dtsi"
 
 &tps {
diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index 1525cd6d4844..23b0a3e32f2e 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -24,197 +24,6 @@
 		reg = <0x80000000 0x10000000>; /* 256 MB */
 	};
 
-	ocp {
-		uart0: serial@44e09000 {
-			pinctrl-names = "default";
-			pinctrl-0 = <&uart0_pins>;
-
-			status = "okay";
-		};
-
-		i2c0: i2c@44e0b000 {
-			pinctrl-names = "default";
-			pinctrl-0 = <&i2c0_pins>;
-
-			status = "okay";
-			clock-frequency = <400000>;
-
-			tps: tps@2d {
-				reg = <0x2d>;
-			};
-		};
-
-		musb: usb@47400000 {
-			status = "okay";
-
-			control@44e10000 {
-				status = "okay";
-			};
-
-			usb-phy@47401300 {
-				status = "okay";
-			};
-
-			usb-phy@47401b00 {
-				status = "okay";
-			};
-
-			usb@47401000 {
-				status = "okay";
-			};
-
-			usb@47401800 {
-				status = "okay";
-				dr_mode = "host";
-			};
-
-			dma-controller@07402000  {
-				status = "okay";
-			};
-		};
-
-		i2c1: i2c@4802a000 {
-			pinctrl-names = "default";
-			pinctrl-0 = <&i2c1_pins>;
-
-			status = "okay";
-			clock-frequency = <100000>;
-
-			lis331dlh: lis331dlh@18 {
-				compatible = "st,lis331dlh", "st,lis3lv02d";
-				reg = <0x18>;
-				Vdd-supply = <&lis3_reg>;
-				Vdd_IO-supply = <&lis3_reg>;
-
-				st,click-single-x;
-				st,click-single-y;
-				st,click-single-z;
-				st,click-thresh-x = <10>;
-				st,click-thresh-y = <10>;
-				st,click-thresh-z = <10>;
-				st,irq1-click;
-				st,irq2-click;
-				st,wakeup-x-lo;
-				st,wakeup-x-hi;
-				st,wakeup-y-lo;
-				st,wakeup-y-hi;
-				st,wakeup-z-lo;
-				st,wakeup-z-hi;
-				st,min-limit-x = <120>;
-				st,min-limit-y = <120>;
-				st,min-limit-z = <140>;
-				st,max-limit-x = <550>;
-				st,max-limit-y = <550>;
-				st,max-limit-z = <750>;
-			};
-
-			tsl2550: tsl2550@39 {
-				compatible = "taos,tsl2550";
-				reg = <0x39>;
-			};
-
-			tmp275: tmp275@48 {
-				compatible = "ti,tmp275";
-				reg = <0x48>;
-			};
-		};
-
-		elm: elm@48080000 {
-			status = "okay";
-		};
-
-		epwmss0: epwmss@48300000 {
-			status = "okay";
-
-			ecap0: ecap@48300100 {
-				status = "okay";
-				pinctrl-names = "default";
-				pinctrl-0 = <&ecap0_pins>;
-			};
-		};
-
-		gpmc: gpmc@50000000 {
-			status = "okay";
-			pinctrl-names = "default";
-			pinctrl-0 = <&nandflash_pins_s0>;
-			ranges = <0 0 0x08000000 0x10000000>;	/* CS0: NAND */
-			nand@0,0 {
-				reg = <0 0 0>; /* CS0, offset 0 */
-				nand-bus-width = <8>;
-				ti,nand-ecc-opt = "bch8";
-				gpmc,device-nand = "true";
-				gpmc,device-width = <1>;
-				gpmc,sync-clk-ps = <0>;
-				gpmc,cs-on-ns = <0>;
-				gpmc,cs-rd-off-ns = <44>;
-				gpmc,cs-wr-off-ns = <44>;
-				gpmc,adv-on-ns = <6>;
-				gpmc,adv-rd-off-ns = <34>;
-				gpmc,adv-wr-off-ns = <44>;
-				gpmc,we-on-ns = <0>;
-				gpmc,we-off-ns = <40>;
-				gpmc,oe-on-ns = <0>;
-				gpmc,oe-off-ns = <54>;
-				gpmc,access-ns = <64>;
-				gpmc,rd-cycle-ns = <82>;
-				gpmc,wr-cycle-ns = <82>;
-				gpmc,wait-on-read = "true";
-				gpmc,wait-on-write = "true";
-				gpmc,bus-turnaround-ns = <0>;
-				gpmc,cycle2cycle-delay-ns = <0>;
-				gpmc,clk-activation-ns = <0>;
-				gpmc,wait-monitoring-ns = <0>;
-				gpmc,wr-access-ns = <40>;
-				gpmc,wr-data-mux-bus-ns = <0>;
-
-				#address-cells = <1>;
-				#size-cells = <1>;
-				elm_id = <&elm>;
-
-				/* MTD partition table */
-				partition@0 {
-					label = "SPL1";
-					reg = <0x00000000 0x000020000>;
-				};
-
-				partition@1 {
-					label = "SPL2";
-					reg = <0x00020000 0x00020000>;
-				};
-
-				partition@2 {
-					label = "SPL3";
-					reg = <0x00040000 0x00020000>;
-				};
-
-				partition@3 {
-					label = "SPL4";
-					reg = <0x00060000 0x00020000>;
-				};
-
-				partition@4 {
-					label = "U-boot";
-					reg = <0x00080000 0x001e0000>;
-				};
-
-				partition@5 {
-					label = "environment";
-					reg = <0x00260000 0x00020000>;
-				};
-
-				partition@6 {
-					label = "Kernel";
-					reg = <0x00280000 0x00500000>;
-				};
-
-				partition@7 {
-					label = "File-System";
-					reg = <0x00780000 0x0F880000>;
-				};
-			};
-		};
-	};
-
 	vbat: fixedregulator@0 {
 		compatible = "regulator-fixed";
 		regulator-name = "vbat";
@@ -405,6 +214,195 @@
 	};
 };
 
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins>;
+
+	status = "okay";
+};
+
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins>;
+
+	status = "okay";
+	clock-frequency = <400000>;
+
+	tps: tps@2d {
+		reg = <0x2d>;
+	};
+};
+
+&usb {
+	status = "okay";
+
+	control@44e10000 {
+		status = "okay";
+	};
+
+	usb-phy@47401300 {
+		status = "okay";
+	};
+
+	usb-phy@47401b00 {
+		status = "okay";
+	};
+
+	usb@47401000 {
+		status = "okay";
+	};
+
+	usb@47401800 {
+		status = "okay";
+		dr_mode = "host";
+	};
+
+	dma-controller@07402000  {
+		status = "okay";
+	};
+};
+
+&i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
+
+	status = "okay";
+	clock-frequency = <100000>;
+
+	lis331dlh: lis331dlh@18 {
+		compatible = "st,lis331dlh", "st,lis3lv02d";
+		reg = <0x18>;
+		Vdd-supply = <&lis3_reg>;
+		Vdd_IO-supply = <&lis3_reg>;
+
+		st,click-single-x;
+		st,click-single-y;
+		st,click-single-z;
+		st,click-thresh-x = <10>;
+		st,click-thresh-y = <10>;
+		st,click-thresh-z = <10>;
+		st,irq1-click;
+		st,irq2-click;
+		st,wakeup-x-lo;
+		st,wakeup-x-hi;
+		st,wakeup-y-lo;
+		st,wakeup-y-hi;
+		st,wakeup-z-lo;
+		st,wakeup-z-hi;
+		st,min-limit-x = <120>;
+		st,min-limit-y = <120>;
+		st,min-limit-z = <140>;
+		st,max-limit-x = <550>;
+		st,max-limit-y = <550>;
+		st,max-limit-z = <750>;
+	};
+
+	tsl2550: tsl2550@39 {
+		compatible = "taos,tsl2550";
+		reg = <0x39>;
+	};
+
+	tmp275: tmp275@48 {
+		compatible = "ti,tmp275";
+		reg = <0x48>;
+	};
+};
+
+&elm {
+	status = "okay";
+};
+
+&epwmss0 {
+	status = "okay";
+
+	ecap0: ecap@48300100 {
+		status = "okay";
+		pinctrl-names = "default";
+		pinctrl-0 = <&ecap0_pins>;
+	};
+};
+
+&gpmc {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&nandflash_pins_s0>;
+	ranges = <0 0 0x08000000 0x10000000>;	/* CS0: NAND */
+	nand@0,0 {
+		reg = <0 0 0>; /* CS0, offset 0 */
+		nand-bus-width = <8>;
+		ti,nand-ecc-opt = "bch8";
+		gpmc,device-nand = "true";
+		gpmc,device-width = <1>;
+		gpmc,sync-clk-ps = <0>;
+		gpmc,cs-on-ns = <0>;
+		gpmc,cs-rd-off-ns = <44>;
+		gpmc,cs-wr-off-ns = <44>;
+		gpmc,adv-on-ns = <6>;
+		gpmc,adv-rd-off-ns = <34>;
+		gpmc,adv-wr-off-ns = <44>;
+		gpmc,we-on-ns = <0>;
+		gpmc,we-off-ns = <40>;
+		gpmc,oe-on-ns = <0>;
+		gpmc,oe-off-ns = <54>;
+		gpmc,access-ns = <64>;
+		gpmc,rd-cycle-ns = <82>;
+		gpmc,wr-cycle-ns = <82>;
+		gpmc,wait-on-read = "true";
+		gpmc,wait-on-write = "true";
+		gpmc,bus-turnaround-ns = <0>;
+		gpmc,cycle2cycle-delay-ns = <0>;
+		gpmc,clk-activation-ns = <0>;
+		gpmc,wait-monitoring-ns = <0>;
+		gpmc,wr-access-ns = <40>;
+		gpmc,wr-data-mux-bus-ns = <0>;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+		elm_id = <&elm>;
+
+		/* MTD partition table */
+		partition@0 {
+			label = "SPL1";
+			reg = <0x00000000 0x000020000>;
+		};
+
+		partition@1 {
+			label = "SPL2";
+			reg = <0x00020000 0x00020000>;
+		};
+
+		partition@2 {
+			label = "SPL3";
+			reg = <0x00040000 0x00020000>;
+		};
+
+		partition@3 {
+			label = "SPL4";
+			reg = <0x00060000 0x00020000>;
+		};
+
+		partition@4 {
+			label = "U-boot";
+			reg = <0x00080000 0x001e0000>;
+		};
+
+		partition@5 {
+			label = "environment";
+			reg = <0x00260000 0x00020000>;
+		};
+
+		partition@6 {
+			label = "Kernel";
+			reg = <0x00280000 0x00500000>;
+		};
+
+		partition@7 {
+			label = "File-System";
+			reg = <0x00780000 0x0F880000>;
+		};
+	};
+};
+
 #include "tps65910.dtsi"
 
 &tps {
diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts
index f0066fe5d739..bc93895a6eca 100644
--- a/arch/arm/boot/dts/am335x-evmsk.dts
+++ b/arch/arm/boot/dts/am335x-evmsk.dts
@@ -31,81 +31,6 @@
 		reg = <0x80000000 0x10000000>; /* 256 MB */
 	};
 
-	ocp {
-		uart0: serial@44e09000 {
-			pinctrl-names = "default";
-			pinctrl-0 = <&uart0_pins>;
-
-			status = "okay";
-		};
-
-		i2c0: i2c@44e0b000 {
-			pinctrl-names = "default";
-			pinctrl-0 = <&i2c0_pins>;
-
-			status = "okay";
-			clock-frequency = <400000>;
-
-			tps: tps@2d {
-				reg = <0x2d>;
-			};
-
-			lis331dlh: lis331dlh@18 {
-				compatible = "st,lis331dlh", "st,lis3lv02d";
-				reg = <0x18>;
-				Vdd-supply = <&lis3_reg>;
-				Vdd_IO-supply = <&lis3_reg>;
-
-				st,click-single-x;
-				st,click-single-y;
-				st,click-single-z;
-				st,click-thresh-x = <10>;
-				st,click-thresh-y = <10>;
-				st,click-thresh-z = <10>;
-				st,irq1-click;
-				st,irq2-click;
-				st,wakeup-x-lo;
-				st,wakeup-x-hi;
-				st,wakeup-y-lo;
-				st,wakeup-y-hi;
-				st,wakeup-z-lo;
-				st,wakeup-z-hi;
-				st,min-limit-x = <120>;
-				st,min-limit-y = <120>;
-				st,min-limit-z = <140>;
-				st,max-limit-x = <550>;
-				st,max-limit-y = <550>;
-				st,max-limit-z = <750>;
-			};
-		};
-
-		musb: usb@47400000 {
-			status = "okay";
-
-			control@44e10000 {
-				status = "okay";
-			};
-
-			usb-phy@47401300 {
-				status = "okay";
-			};
-
-			usb@47401000 {
-				status = "okay";
-			};
-		};
-
-		epwmss2: epwmss@48304000 {
-			status = "okay";
-
-			ecap2: ecap@48304100 {
-				status = "okay";
-				pinctrl-names = "default";
-				pinctrl-0 = <&ecap2_pins>;
-			};
-		};
-	};
-
 	vbat: fixedregulator@0 {
 		compatible = "regulator-fixed";
 		regulator-name = "vbat";
@@ -321,6 +246,79 @@
 	};
 };
 
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins>;
+
+	status = "okay";
+};
+
+&i2c0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins>;
+
+	status = "okay";
+	clock-frequency = <400000>;
+
+	tps: tps@2d {
+		reg = <0x2d>;
+	};
+
+	lis331dlh: lis331dlh@18 {
+		compatible = "st,lis331dlh", "st,lis3lv02d";
+		reg = <0x18>;
+		Vdd-supply = <&lis3_reg>;
+		Vdd_IO-supply = <&lis3_reg>;
+
+		st,click-single-x;
+		st,click-single-y;
+		st,click-single-z;
+		st,click-thresh-x = <10>;
+		st,click-thresh-y = <10>;
+		st,click-thresh-z = <10>;
+		st,irq1-click;
+		st,irq2-click;
+		st,wakeup-x-lo;
+		st,wakeup-x-hi;
+		st,wakeup-y-lo;
+		st,wakeup-y-hi;
+		st,wakeup-z-lo;
+		st,wakeup-z-hi;
+		st,min-limit-x = <120>;
+		st,min-limit-y = <120>;
+		st,min-limit-z = <140>;
+		st,max-limit-x = <550>;
+		st,max-limit-y = <550>;
+		st,max-limit-z = <750>;
+	};
+};
+
+&usb {
+	status = "okay";
+
+	control@44e10000 {
+		status = "okay";
+	};
+
+	usb-phy@47401300 {
+		status = "okay";
+	};
+
+	usb@47401000 {
+		status = "okay";
+	};
+};
+
+&epwmss2 {
+	status = "okay";
+
+	ecap2: ecap@48304100 {
+		status = "okay";
+		pinctrl-names = "default";
+		pinctrl-0 = <&ecap2_pins>;
+	};
+};
+
 #include "tps65910.dtsi"
 
 &tps {
-- 
cgit 


From 6283513b6ee9caa8e38f9c41fcf95f209d9aebfd Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Sat, 21 Sep 2013 02:40:14 +0300
Subject: ARM: dts: omap3-devkit8000: fix a typo in GMPC node

"gpmc,sync-clki-ps" is not defined/documented, it should be
"gpmc,sync-clk-ps" instead.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-devkit8000.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/omap3-devkit8000.dts b/arch/arm/boot/dts/omap3-devkit8000.dts
index 7ef282795dd4..4665421bb7bc 100644
--- a/arch/arm/boot/dts/omap3-devkit8000.dts
+++ b/arch/arm/boot/dts/omap3-devkit8000.dts
@@ -125,7 +125,7 @@
 		nand-bus-width = <16>;
 
 		gpmc,device-nand;
-		gpmc,sync-clki-ps = <0>;
+		gpmc,sync-clk-ps = <0>;
 		gpmc,cs-on-ns = <0>;
 		gpmc,cs-rd-off-ns = <44>;
 		gpmc,cs-wr-off-ns = <44>;
-- 
cgit 


From c56a831ca47e16f54467abc14eb597da87a8614c Mon Sep 17 00:00:00 2001
From: Keerthy <j-keerthy@ti.com>
Date: Mon, 26 Aug 2013 11:06:51 +0530
Subject: ARM: dts: DRA7: Add TPS659038 PMIC nodes

Add DT nodes for TPS659038 PMIC on DRA7 boards.

It is based on top of:
http://comments.gmane.org/gmane.linux.ports.arm.omap/102459.

Documentation:
- Documentation/devicetree/bindings/mfd/palmas.txt
- Documentation/devicetree/bindings/regulator/palmas-pmic.txt

Boot Tested on DRA7 d1 Board.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
[bcousson@baylibre.com: Fix indentation and changelog]
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/dra7-evm.dts | 112 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 112 insertions(+)

diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index ca5dab2214d5..fbbe40625508 100644
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -93,6 +93,118 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c1_pins>;
 	clock-frequency = <400000>;
+
+	tps659038: tps659038@58 {
+		compatible = "ti,tps659038";
+		reg = <0x58>;
+
+		tps659038_pmic {
+			compatible = "ti,tps659038-pmic";
+
+			regulators {
+				smps123_reg: smps123 {
+					/* VDD_MPU */
+					regulator-name = "smps123";
+					regulator-min-microvolt = < 850000>;
+					regulator-max-microvolt = <1250000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				smps45_reg: smps45 {
+					/* VDD_DSPEVE */
+					regulator-name = "smps45";
+					regulator-min-microvolt = < 850000>;
+					regulator-max-microvolt = <1150000>;
+					regulator-boot-on;
+				};
+
+				smps6_reg: smps6 {
+					/* VDD_GPU - over VDD_SMPS6 */
+					regulator-name = "smps6";
+					regulator-min-microvolt = <850000>;
+					regulator-max-microvolt = <12500000>;
+					regulator-boot-on;
+				};
+
+				smps7_reg: smps7 {
+					/* CORE_VDD */
+					regulator-name = "smps7";
+					regulator-min-microvolt = <850000>;
+					regulator-max-microvolt = <1030000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				smps8_reg: smps8 {
+					/* VDD_IVAHD */
+					regulator-name = "smps8";
+					regulator-min-microvolt = < 850000>;
+					regulator-max-microvolt = <1250000>;
+					regulator-boot-on;
+				};
+
+				smps9_reg: smps9 {
+					/* VDDS1V8 */
+					regulator-name = "smps9";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				ldo1_reg: ldo1 {
+					/* LDO1_OUT --> SDIO  */
+					regulator-name = "ldo1";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <3300000>;
+					regulator-boot-on;
+				};
+
+				ldo2_reg: ldo2 {
+					/* VDD_RTCIO */
+					/* LDO2 -> VDDSHV5, LDO2 also goes to CAN_PHY_3V3 */
+					regulator-name = "ldo2";
+					regulator-min-microvolt = <3300000>;
+					regulator-max-microvolt = <3300000>;
+					regulator-boot-on;
+				};
+
+				ldo3_reg: ldo3 {
+					/* VDDA_1V8_PHY */
+					regulator-name = "ldo3";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-boot-on;
+				};
+
+				ldo9_reg: ldo9 {
+					/* VDD_RTC */
+					regulator-name = "ldo9";
+					regulator-min-microvolt = <1050000>;
+					regulator-max-microvolt = <1050000>;
+					regulator-boot-on;
+				};
+
+				ldoln_reg: ldoln {
+					/* VDDA_1V8_PLL */
+					regulator-name = "ldoln";
+					regulator-min-microvolt = <1800000>;
+					regulator-max-microvolt = <1800000>;
+					regulator-always-on;
+					regulator-boot-on;
+				};
+
+				ldousb_reg: ldousb {
+					/* VDDA_3V_USB: VDDA_USBHS33 */
+					regulator-name = "ldousb";
+					regulator-min-microvolt = <3300000>;
+					regulator-max-microvolt = <3300000>;
+					regulator-boot-on;
+				};
+			};
+		};
+	};
 };
 
 &i2c2 {
-- 
cgit 


From 8170056d3cc99ce6521841cd30c1d50847958f9f Mon Sep 17 00:00:00 2001
From: Dan Murphy <dmurphy@ti.com>
Date: Wed, 2 Oct 2013 12:58:33 -0500
Subject: ARM: dts: AM33XX: add ethernet alias's for am33xx

Set the alias for ethernet0 and ethernet1 so that uBoot
can set the MAC address appropriately.

Currently u-boot cannot find the alias and there for does
not set the MAC address.

Signed-off-by: Dan Murphy <dmurphy@ti.com>
Tested-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am33xx.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 553adc6b535e..8aabaa0eb264 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -30,6 +30,8 @@
 		usb1 = &usb1;
 		phy0 = &usb0_phy;
 		phy1 = &usb1_phy;
+		ethernet0 = &cpsw_emac0;
+		ethernet1 = &cpsw_emac1;
 	};
 
 	cpus {
-- 
cgit 


From 633b940fc0226aa322d5e8f2464c43efe77aaf31 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Tue, 24 Sep 2013 11:53:51 +0300
Subject: ARM: dts: omap3-beagle: Use reset-gpios for hsusb2_reset

We no longer need to model the RESET line as a regulator since
the USB phy-nop driver accepts "reset-gpios" property.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-beagle.dts | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/arch/arm/boot/dts/omap3-beagle.dts b/arch/arm/boot/dts/omap3-beagle.dts
index 2e29e811dd42..12378224e46f 100644
--- a/arch/arm/boot/dts/omap3-beagle.dts
+++ b/arch/arm/boot/dts/omap3-beagle.dts
@@ -44,17 +44,6 @@
 		};
 	};
 
-	/* HS USB Port 2 RESET */
-	hsusb2_reset: hsusb2_reset_reg {
-		compatible = "regulator-fixed";
-		regulator-name = "hsusb2_reset";
-		regulator-min-microvolt = <3300000>;
-		regulator-max-microvolt = <3300000>;
-		gpio = <&gpio5 19 0>;	/* gpio_147 */
-		startup-delay-us = <70000>;
-		enable-active-high;
-	};
-
 	/* HS USB Port 2 Power */
 	hsusb2_power: hsusb2_power_reg {
 		compatible = "regulator-fixed";
@@ -68,7 +57,7 @@
 	/* HS USB Host PHY on PORT 2 */
 	hsusb2_phy: hsusb2_phy {
 		compatible = "usb-nop-xceiv";
-		reset-supply = <&hsusb2_reset>;
+		reset-gpios = <&gpio5 19 GPIO_ACTIVE_LOW>;	/* gpio_147 */
 		vcc-supply = <&hsusb2_power>;
 	};
 
-- 
cgit 


From 4cbdc86d6386765345e0934db256e257c0ef853f Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Tue, 24 Sep 2013 11:53:52 +0300
Subject: ARM: dts: omap4-panda: Use reset-gpios for hsusb1_reset

We no longer need to model the RESET line as a regulator since
the USB phy-nop driver accepts "reset-gpios" property.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap4-panda-common.dtsi | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/arch/arm/boot/dts/omap4-panda-common.dtsi b/arch/arm/boot/dts/omap4-panda-common.dtsi
index 43b7661cfe24..3e6801cecd04 100644
--- a/arch/arm/boot/dts/omap4-panda-common.dtsi
+++ b/arch/arm/boot/dts/omap4-panda-common.dtsi
@@ -60,22 +60,6 @@
 			"AFMR", "Line In";
 	};
 
-	/*
-	 * Temp hack: Need to be replaced with the proper gpio-controlled
-	 * reset driver as soon it will be merged.
-	 * http://thread.gmane.org/gmane.linux.drivers.devicetree/36830
-	 */
-	/* HS USB Port 1 RESET */
-	hsusb1_reset: hsusb1_reset_reg {
-		compatible = "regulator-fixed";
-		regulator-name = "hsusb1_reset";
-		regulator-min-microvolt = <3300000>;
-		regulator-max-microvolt = <3300000>;
-		gpio = <&gpio2 30 0>;	/* gpio_62 */
-		startup-delay-us = <70000>;
-		enable-active-high;
-	};
-
 	/* HS USB Port 1 Power */
 	hsusb1_power: hsusb1_power_reg {
 		compatible = "regulator-fixed";
@@ -97,7 +81,7 @@
 	/* HS USB Host PHY on PORT 1 */
 	hsusb1_phy: hsusb1_phy {
 		compatible = "usb-nop-xceiv";
-		reset-supply = <&hsusb1_reset>;
+		reset-gpios = <&gpio2 30 GPIO_ACTIVE_LOW>;   /* gpio_62 */
 		vcc-supply = <&hsusb1_power>;
 	/**
 	 * FIXME:
-- 
cgit 


From 8ae9b5953c811ea733080194373e56d8a8ef559c Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Tue, 24 Sep 2013 11:53:53 +0300
Subject: ARM: dts: omap5-uevm: Use reset-gpios for hsusb2/3_reset

We no longer need to model the RESET line as a regulator since
the USB phy-nop driver accepts "reset-gpios" property.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap5-uevm.dts | 26 ++------------------------
 1 file changed, 2 insertions(+), 24 deletions(-)

diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts
index da25a14d919f..748f6bfbeef6 100644
--- a/arch/arm/boot/dts/omap5-uevm.dts
+++ b/arch/arm/boot/dts/omap5-uevm.dts
@@ -27,21 +27,10 @@
 		regulator-max-microvolt = <3000000>;
 	};
 
-	/* HS USB Port 2 RESET */
-	hsusb2_reset: hsusb2_reset_reg {
-		compatible = "regulator-fixed";
-		regulator-name = "hsusb2_reset";
-		regulator-min-microvolt = <3300000>;
-		regulator-max-microvolt = <3300000>;
-		gpio = <&gpio3 16 GPIO_ACTIVE_HIGH>; /* gpio3_80 HUB_NRESET */
-		startup-delay-us = <70000>;
-		enable-active-high;
-	};
-
 	/* HS USB Host PHY on PORT 2 */
 	hsusb2_phy: hsusb2_phy {
 		compatible = "usb-nop-xceiv";
-		reset-supply = <&hsusb2_reset>;
+		reset-gpios = <&gpio3 16 GPIO_ACTIVE_LOW>; /* gpio3_80 HUB_NRESET */
 	/**
 	  * FIXME
 	  * Put the right clock phandle here when available
@@ -51,21 +40,10 @@
 		clock-frequency = <19200000>;
 	};
 
-	/* HS USB Port 3 RESET */
-	hsusb3_reset: hsusb3_reset_reg {
-		compatible = "regulator-fixed";
-		regulator-name = "hsusb3_reset";
-		regulator-min-microvolt = <3300000>;
-		regulator-max-microvolt = <3300000>;
-		gpio = <&gpio3 15 GPIO_ACTIVE_HIGH>; /* gpio3_79 ETH_NRESET */
-		startup-delay-us = <70000>;
-		enable-active-high;
-	};
-
 	/* HS USB Host PHY on PORT 3 */
 	hsusb3_phy: hsusb3_phy {
 		compatible = "usb-nop-xceiv";
-		reset-supply = <&hsusb3_reset>;
+		reset-gpios = <&gpio3 15 GPIO_ACTIVE_LOW>; /* gpio3_79 ETH_NRESET */
 	};
 
 	leds {
-- 
cgit 


From aaba94429ab3570b7abe4ef2254a75a3a305e358 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Tue, 24 Sep 2013 11:53:55 +0300
Subject: ARM: dts: omap3-beagle-xm: Add USB Host support

Provide RESET GPIO and Power regulator for the USB PHY,
the USB Host port mode and the PHY device for the controller.
Also provide pin multiplexer information for USB host pins.

We also relocate omap3_pmx_core pin definations so that they
are close to omap3_pmx_wkup pin definations.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-beagle-xm.dts | 65 ++++++++++++++++++++++++++++++-----
 1 file changed, 56 insertions(+), 9 deletions(-)

diff --git a/arch/arm/boot/dts/omap3-beagle-xm.dts b/arch/arm/boot/dts/omap3-beagle-xm.dts
index 0c514dc8460c..0f7cfc503bf9 100644
--- a/arch/arm/boot/dts/omap3-beagle-xm.dts
+++ b/arch/arm/boot/dts/omap3-beagle-xm.dts
@@ -69,6 +69,23 @@
 		};
 
 	};
+
+	/* HS USB Port 2 Power */
+	hsusb2_power: hsusb2_power_reg {
+		compatible = "regulator-fixed";
+		regulator-name = "hsusb2_vbus";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&twl_gpio 18 0>;	/* GPIO LEDA */
+		startup-delay-us = <70000>;
+	};
+
+	/* HS USB Host PHY on PORT 2 */
+	hsusb2_phy: hsusb2_phy {
+		compatible = "usb-nop-xceiv";
+		reset-gpios = <&gpio5 19 GPIO_ACTIVE_LOW>; /* gpio_147 */
+		vcc-supply = <&hsusb2_power>;
+	};
 };
 
 &omap3_pmx_wkup {
@@ -79,6 +96,37 @@
 	};
 };
 
+&omap3_pmx_core {
+	pinctrl-names = "default";
+	pinctrl-0 = <
+			&hsusbb2_pins
+	>;
+
+	uart3_pins: pinmux_uart3_pins {
+		pinctrl-single,pins = <
+			0x16e (PIN_INPUT | PIN_OFF_WAKEUPENABLE | MUX_MODE0) /* uart3_rx_irrx.uart3_rx_irrx */
+			0x170 (PIN_OUTPUT | MUX_MODE0) /* uart3_tx_irtx.uart3_tx_irtx OUTPUT | MODE0 */
+		>;
+	};
+
+	hsusbb2_pins: pinmux_hsusbb2_pins {
+		pinctrl-single,pins = <
+			0x5c0 (PIN_OUTPUT | MUX_MODE3)		/* etk_d10.hsusb2_clk */
+			0x5c2 (PIN_OUTPUT | MUX_MODE3)		/* etk_d11.hsusb2_stp */
+			0x5c4 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* etk_d12.hsusb2_dir */
+			0x5c6 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* etk_d13.hsusb2_nxt */
+			0x5c8 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* etk_d14.hsusb2_data0 */
+			0x5cA (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* etk_d15.hsusb2_data1 */
+			0x1a4 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* mcspi1_cs3.hsusb2_data2 */
+			0x1a6 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* mcspi2_clk.hsusb2_data7 */
+			0x1a8 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* mcspi2_simo.hsusb2_data4 */
+			0x1aa (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* mcspi2_somi.hsusb2_data5 */
+			0x1ac (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* mcspi2_cs0.hsusb2_data6 */
+			0x1ae (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* mcspi2_cs1.hsusb2_data3 */
+		>;
+	};
+};
+
 &i2c1 {
 	clock-frequency = <2600000>;
 
@@ -148,15 +196,6 @@
 	power = <50>;
 };
 
-&omap3_pmx_core {
-	uart3_pins: pinmux_uart3_pins {
-		pinctrl-single,pins = <
-			0x16e (PIN_INPUT | PIN_OFF_WAKEUPENABLE | MUX_MODE0) /* uart3_rx_irrx.uart3_rx_irrx */
-			0x170 (PIN_OUTPUT | MUX_MODE0) /* uart3_tx_irtx.uart3_tx_irtx OUTPUT | MODE0 */
-		>;
-	};
-};
-
 &uart3 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart3_pins>;
@@ -166,3 +205,11 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&gpio1_pins>;
 };
+
+&usbhshost {
+	port2-mode = "ehci-phy";
+};
+
+&usbhsehci {
+	phys = <0 &hsusb2_phy>;
+};
-- 
cgit 


From 816602086b2559271b55af70f22c9fa103af2c20 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Tue, 24 Sep 2013 11:53:56 +0300
Subject: ARM: dts: omap3-beagle: Add USB OTG PHY details

Add information about the USB OTG PHY. Without this
the OTG port on beagle will not work.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-beagle.dts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-beagle.dts b/arch/arm/boot/dts/omap3-beagle.dts
index 12378224e46f..7669c16259a5 100644
--- a/arch/arm/boot/dts/omap3-beagle.dts
+++ b/arch/arm/boot/dts/omap3-beagle.dts
@@ -169,3 +169,10 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&gpio1_pins>;
 };
+
+&usb_otg_hs {
+	interface-type = <0>;
+	usb-phy = <&usb2_phy>;
+	mode = <3>;
+	power = <50>;
+};
-- 
cgit 


From ea5b7c10d4dce969fe7cf30a087e30664ad7f6dc Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Mon, 30 Sep 2013 09:40:16 -0500
Subject: ARM: dts: am335x-boneblack: move fixed regulator to board level

3.3V fixed regulator does not belong to TPS node - as a result
the fixed regulator is never probed and MMC is continually deferred
due to lack of regulator.

Move the fixed regulator to be at root of platform.

Cc: Joel Fernandes <joelf@ti.com>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Koen Kooi <koen@dominion.thruhere.net>
Signed-off-by: Nishanth Menon <nm@ti.com>
Tested-by: Felipe Balbi <balbi@ti.com>
Tested-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am335x-bone-common.dtsi | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
index ff5c3cafbdff..b3e6fcf92a67 100644
--- a/arch/arm/boot/dts/am335x-bone-common.dtsi
+++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
@@ -55,6 +55,13 @@
 			default-state = "off";
 		};
 	};
+
+	vmmcsd_fixed: fixedregulator@0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vmmcsd_fixed";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
 };
 
 &am33xx_pinmux {
@@ -257,13 +264,6 @@
 			regulator-always-on;
 		};
 	};
-
-	vmmcsd_fixed: fixedregulator@0 {
-		compatible = "regulator-fixed";
-		regulator-name = "vmmcsd_fixed";
-		regulator-min-microvolt = <3300000>;
-		regulator-max-microvolt = <3300000>;
-	};
 };
 
 &cpsw_emac0 {
-- 
cgit 


From e415245c68754150429aa707075233d3069c8dd7 Mon Sep 17 00:00:00 2001
From: Enric Balletbo i Serra <eballetbo@gmail.com>
Date: Tue, 10 Sep 2013 16:55:48 +0200
Subject: ARM: dts: AM33XX: Add support for IGEP COM AQUILA

The IGEP COM AQUILA is industrial processors SODIMM module with
following highlights:

   o AM3352/AM3354/AM3358/AM3359 Texas Instruments processor
   o Cortex-A8 ARM CPU
   o 3.3 volts Inputs / Outputs use industrial
   o 256 MB DDR3 SDRAM / 128 Megabytes FLASH
   o MicroSD card reader on-board
   o Ethernet controller on-board
   o JTAG debug connector available
   o Designed for industrial range purposes

Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am335x-igep0033.dtsi | 265 +++++++++++++++++++++++++++++++++
 1 file changed, 265 insertions(+)
 create mode 100644 arch/arm/boot/dts/am335x-igep0033.dtsi

diff --git a/arch/arm/boot/dts/am335x-igep0033.dtsi b/arch/arm/boot/dts/am335x-igep0033.dtsi
new file mode 100644
index 000000000000..06eba076bfcd
--- /dev/null
+++ b/arch/arm/boot/dts/am335x-igep0033.dtsi
@@ -0,0 +1,265 @@
+/*
+ * am335x-igep0033.dtsi - Device Tree file for IGEP COM AQUILA AM335x
+ *
+ * Copyright (C) 2013 ISEE 2007 SL - http://www.isee.biz
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/dts-v1/;
+
+#include "am33xx.dtsi"
+
+/ {
+	cpus {
+		cpu@0 {
+			cpu0-supply = <&vdd1_reg>;
+		};
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x10000000>; /* 256 MB */
+	};
+
+	leds {
+		pinctrl-names = "default";
+		pinctrl-0 = <&leds_pins>;
+
+		compatible = "gpio-leds";
+
+		led@0 {
+			label = "com:green:user";
+			gpios = <&gpio1 23 GPIO_ACTIVE_HIGH>;
+			default-state = "on";
+		};
+	};
+
+	vbat: fixedregulator@0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vbat";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		regulator-boot-on;
+	};
+};
+
+&am33xx_pinmux {
+	i2c0_pins: pinmux_i2c0_pins {
+		pinctrl-single,pins = <
+			0x188 (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c0_sda.i2c0_sda */
+			0x18c (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c0_scl.i2c0_scl */
+		>;
+	};
+
+	nandflash_pins: pinmux_nandflash_pins {
+		pinctrl-single,pins = <
+			0x0 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad0.gpmc_ad0 */
+			0x4 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad1.gpmc_ad1 */
+			0x8 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad2.gpmc_ad2 */
+			0xc (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad3.gpmc_ad3 */
+			0x10 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad4.gpmc_ad4 */
+			0x14 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad5.gpmc_ad5 */
+			0x18 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad6.gpmc_ad6 */
+			0x1c (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad7.gpmc_ad7 */
+			0x70 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_wait0.gpmc_wait0 */
+			0x74 (PIN_INPUT_PULLUP | MUX_MODE7)	/* gpmc_wpn.gpio0_30 */
+			0x7c (PIN_OUTPUT | MUX_MODE0)		/* gpmc_csn0.gpmc_csn0 */
+			0x90 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_advn_ale.gpmc_advn_ale */
+			0x94 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_oen_ren.gpmc_oen_ren */
+			0x98 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_wen.gpmc_wen */
+			0x9c (PIN_OUTPUT | MUX_MODE0)		/* gpmc_be0n_cle.gpmc_be0n_cle */
+		>;
+	};
+
+	uart0_pins: pinmux_uart0_pins {
+		pinctrl-single,pins = <
+			0x170 (PIN_INPUT_PULLUP | MUX_MODE0)	/* uart0_rxd.uart0_rxd */
+			0x174 (PIN_OUTPUT_PULLDOWN | MUX_MODE0)	/* uart0_txd.uart0_txd */
+		>;
+	};
+
+	leds_pins: pinmux_leds_pins {
+		pinctrl-single,pins = <
+			0x5c (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpmc_a7.gpio1_23 */
+		>;
+	};
+};
+
+&cpsw_emac0 {
+	phy_id = <&davinci_mdio>, <0>;
+};
+
+&cpsw_emac1 {
+	phy_id = <&davinci_mdio>, <1>;
+};
+
+&elm {
+	status = "okay";
+};
+
+&gpmc {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&nandflash_pins>;
+
+	ranges = <0 0 0x08000000 0x10000000>;	/* CS0: NAND */
+
+	nand@0,0 {
+		reg = <0 0 0>; /* CS0, offset 0 */
+		nand-bus-width = <8>;
+		ti,nand-ecc-opt = "bch8";
+		gpmc,device-nand = "true";
+		gpmc,device-width = <1>;
+		gpmc,sync-clk-ps = <0>;
+		gpmc,cs-on-ns = <0>;
+		gpmc,cs-rd-off-ns = <44>;
+		gpmc,cs-wr-off-ns = <44>;
+		gpmc,adv-on-ns = <6>;
+		gpmc,adv-rd-off-ns = <34>;
+		gpmc,adv-wr-off-ns = <44>;
+		gpmc,we-on-ns = <0>;
+		gpmc,we-off-ns = <40>;
+		gpmc,oe-on-ns = <0>;
+		gpmc,oe-off-ns = <54>;
+		gpmc,access-ns = <64>;
+		gpmc,rd-cycle-ns = <82>;
+		gpmc,wr-cycle-ns = <82>;
+		gpmc,wait-on-read = "true";
+		gpmc,wait-on-write = "true";
+		gpmc,bus-turnaround-ns = <0>;
+		gpmc,cycle2cycle-delay-ns = <0>;
+		gpmc,clk-activation-ns = <0>;
+		gpmc,wait-monitoring-ns = <0>;
+		gpmc,wr-access-ns = <40>;
+		gpmc,wr-data-mux-bus-ns = <0>;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+		elm_id = <&elm>;
+
+		/* MTD partition table */
+		partition@0 {
+			label = "SPL";
+			reg = <0x00000000 0x000080000>;
+		};
+
+		partition@1 {
+			label = "U-boot";
+			reg = <0x00080000 0x001e0000>;
+		};
+
+		partition@2 {
+			label = "U-Boot Env";
+			reg = <0x00260000 0x00020000>;
+		};
+
+		partition@3 {
+			label = "Kernel";
+			reg = <0x00280000 0x00500000>;
+		};
+
+		partition@4 {
+			label = "File System";
+			reg = <0x00780000 0x007880000>;
+		};
+	};
+};
+
+&i2c0 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins>;
+
+	clock-frequency = <400000>;
+
+	tps: tps@2d {
+		reg = <0x2d>;
+	};
+};
+
+&uart0 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins>;
+};
+
+#include "tps65910.dtsi"
+
+&tps {
+	vcc1-supply = <&vbat>;
+	vcc2-supply = <&vbat>;
+	vcc3-supply = <&vbat>;
+	vcc4-supply = <&vbat>;
+	vcc5-supply = <&vbat>;
+	vcc6-supply = <&vbat>;
+	vcc7-supply = <&vbat>;
+	vccio-supply = <&vbat>;
+
+	regulators {
+		vrtc_reg: regulator@0 {
+			regulator-always-on;
+		};
+
+		vio_reg: regulator@1 {
+			regulator-always-on;
+		};
+
+		vdd1_reg: regulator@2 {
+			/* VDD_MPU voltage limits 0.95V - 1.26V with +/-4% tolerance */
+			regulator-name = "vdd_mpu";
+			regulator-min-microvolt = <912500>;
+			regulator-max-microvolt = <1312500>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+
+		vdd2_reg: regulator@3 {
+			/* VDD_CORE voltage limits 0.95V - 1.1V with +/-4% tolerance */
+			regulator-name = "vdd_core";
+			regulator-min-microvolt = <912500>;
+			regulator-max-microvolt = <1150000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+
+		vdd3_reg: regulator@4 {
+			regulator-always-on;
+		};
+
+		vdig1_reg: regulator@5 {
+			regulator-always-on;
+		};
+
+		vdig2_reg: regulator@6 {
+			regulator-always-on;
+		};
+
+		vpll_reg: regulator@7 {
+			regulator-always-on;
+		};
+
+		vdac_reg: regulator@8 {
+			regulator-always-on;
+		};
+
+		vaux1_reg: regulator@9 {
+			regulator-always-on;
+		};
+
+		vaux2_reg: regulator@10 {
+			regulator-always-on;
+		};
+
+		vaux33_reg: regulator@11 {
+			regulator-always-on;
+		};
+
+		vmmc_reg: regulator@12 {
+			regulator-always-on;
+		};
+	};
+};
+
-- 
cgit 


From 5cda1620f457459240176ab6abc9431a1ad6684a Mon Sep 17 00:00:00 2001
From: Enric Balletbo i Serra <eballetbo@gmail.com>
Date: Tue, 10 Sep 2013 16:55:49 +0200
Subject: ARM: dts: AM33XX: Add support for IGEP AQUILA EXPANSION board.

The IGEP AQUILA EXPANSION board is a development platform
for the IGEP COM AQUILA AM335x boards.

The board adds the following connectivity:

    o USB OTG
    o USB HOST
    o HDMI
    o Ethernet
    o Serial Debug (3.3V)
    o 2x46 pin headers
    o EEPROM

Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/Makefile            |  1 +
 arch/arm/boot/dts/am335x-base0033.dts | 16 ++++++++++++++++
 2 files changed, 17 insertions(+)
 create mode 100644 arch/arm/boot/dts/am335x-base0033.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 1be0c95391d7..9df7d2c15e7d 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -188,6 +188,7 @@ dtb-$(CONFIG_ARCH_OMAP2PLUS) += omap2420-h4.dtb \
 	am335x-evmsk.dtb \
 	am335x-bone.dtb \
 	am335x-boneblack.dtb \
+	am335x-base0033.dtb \
 	am3517-evm.dtb \
 	am3517_mt_ventoux.dtb \
 	am43x-epos-evm.dtb \
diff --git a/arch/arm/boot/dts/am335x-base0033.dts b/arch/arm/boot/dts/am335x-base0033.dts
new file mode 100644
index 000000000000..b4f95c2bbf74
--- /dev/null
+++ b/arch/arm/boot/dts/am335x-base0033.dts
@@ -0,0 +1,16 @@
+/*
+ * am335x-base0033.dts - Device Tree file for IGEP AQUILA EXPANSION
+ *
+ * Copyright (C) 2013 ISEE 2007 SL - http://www.isee.biz
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "am335x-igep0033.dtsi"
+
+/ {
+	model = "IGEP COM AM335x on AQUILA Expansion";
+	compatible = "isee,am335x-base0033", "isee,am335x-igep0033", "ti,am33xx";
+};
-- 
cgit 


From af905b2225fa8905f93cc5a6f24dd116e6e7ada1 Mon Sep 17 00:00:00 2001
From: Balaji T K <balajitk@ti.com>
Date: Fri, 27 Sep 2013 17:05:09 +0530
Subject: ARM: dts: am335x-bone-common: correct mux mode for cmd line

Set pinmux_emmc_pins mux mode for cmd line to MODE2 in order
to detect eMMC on BBB and BBW + eMMC cape.

Signed-off-by: Balaji T K <balajitk@ti.com>
Tested-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am335x-bone-common.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
index b3e6fcf92a67..e3f27ec31718 100644
--- a/arch/arm/boot/dts/am335x-bone-common.dtsi
+++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
@@ -160,7 +160,7 @@
 	emmc_pins: pinmux_emmc_pins {
 		pinctrl-single,pins = <
 			0x80 (PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_csn1.mmc1_clk */
-			0x84 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_csn2.mmc1_cmd */
+			0x84 (PIN_INPUT_PULLUP | MUX_MODE2) /* gpmc_csn2.mmc1_cmd */
 			0x00 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad0.mmc1_dat0 */
 			0x04 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad1.mmc1_dat1 */
 			0x08 (PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_ad2.mmc1_dat2 */
-- 
cgit 


From 0d8d40fc66b3fc08b8cb0e5f241455a4f6465509 Mon Sep 17 00:00:00 2001
From: Balaji T K <balajitk@ti.com>
Date: Fri, 27 Sep 2013 17:05:10 +0530
Subject: ARM: dts: am335x-evm[sdk]: switch mmc1 to 4-bit mode

Set bus-width to make SD card operate in 4 bit mode.

Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am335x-evm.dts   | 1 +
 arch/arm/boot/dts/am335x-evmsk.dts | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index 23b0a3e32f2e..028ca096d18d 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -521,4 +521,5 @@
 &mmc1 {
 	status = "okay";
 	vmmc-supply = <&vmmc_reg>;
+	bus-width = <4>;
 };
diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts
index bc93895a6eca..563a2b136e0e 100644
--- a/arch/arm/boot/dts/am335x-evmsk.dts
+++ b/arch/arm/boot/dts/am335x-evmsk.dts
@@ -423,4 +423,5 @@
 &mmc1 {
 	status = "okay";
 	vmmc-supply = <&vmmc_reg>;
+	bus-width = <4>;
 };
-- 
cgit 


From dd6317dffc24568df0ce31e0ce4d64541b38d00b Mon Sep 17 00:00:00 2001
From: Joel Fernandes <joelf@ti.com>
Date: Thu, 11 Jul 2013 18:20:05 -0500
Subject: ARM: dts: OMAP4: Add AES node

OMAP4 has an AES module that uses the omap-aes crypto driver.
Add DT entries for the same.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap4.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 45708e1b7a74..16a44d60b30e 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -663,5 +663,14 @@
 			ram-bits = <12>;
 			ti,has-mailbox;
 		};
+
+		aes: aes@4b501000 {
+			compatible = "ti,omap4-aes";
+			ti,hwmods = "aes";
+			reg = <0x4b501000 0xa0>;
+			interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
+			dmas = <&sdma 111>, <&sdma 110>;
+			dma-names = "tx", "rx";
+		};
 	};
 };
-- 
cgit 


From 806e943153c50a14f107d9a612af1fddc3ceb9da Mon Sep 17 00:00:00 2001
From: Joel Fernandes <joelf@ti.com>
Date: Tue, 24 Sep 2013 15:23:33 -0500
Subject: ARM: dts: OMAP4: Add DES3DES node

OMAP4 has an DES3DES  module that uses the omap-des crypto driver.
Add DT entries for the same.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap4.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 16a44d60b30e..6be1f5678f1a 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -672,5 +672,14 @@
 			dmas = <&sdma 111>, <&sdma 110>;
 			dma-names = "tx", "rx";
 		};
+
+		des: des@480a5000 {
+			compatible = "ti,omap4-des";
+			ti,hwmods = "des";
+			reg = <0x480a5000 0xa0>;
+			interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
+			dmas = <&sdma 117>, <&sdma 116>;
+			dma-names = "tx", "rx";
+		};
 	};
 };
-- 
cgit 


From f8302e1efa7972b0eb8beefb80d756ddf2f30631 Mon Sep 17 00:00:00 2001
From: "Mark A. Greer" <mgreer@animalcreek.com>
Date: Fri, 23 Aug 2013 14:12:35 -0700
Subject: ARM: dts: AM33XX: Add SHAM data and documentation

Add the generic AM33XX SHAM module's device tree data and
enable it for the am335x-evm, am335x-evmsk, and am335x-bone
platforms.  Also add Documentation file describing the data
for the SHAM module.

Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Joel Fernandes <joelf@ti.com>
[joelf@ti.com: Dropped interrupt-parent property, documentation fixups]
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 .../devicetree/bindings/crypto/omap-sham.txt       | 28 ++++++++++++++++++++++
 arch/arm/boot/dts/am335x-bone.dts                  |  4 ++++
 arch/arm/boot/dts/am335x-evm.dts                   |  4 ++++
 arch/arm/boot/dts/am335x-evmsk.dts                 |  4 ++++
 arch/arm/boot/dts/am33xx.dtsi                      |  9 +++++++
 5 files changed, 49 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/crypto/omap-sham.txt

diff --git a/Documentation/devicetree/bindings/crypto/omap-sham.txt b/Documentation/devicetree/bindings/crypto/omap-sham.txt
new file mode 100644
index 000000000000..f839acd6f0ee
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/omap-sham.txt
@@ -0,0 +1,28 @@
+OMAP SoC SHA crypto Module
+
+Required properties:
+
+- compatible : Should contain entries for this and backward compatible
+  SHAM versions:
+  - "ti,omap2-sham" for OMAP2 & OMAP3.
+  - "ti,omap4-sham" for OMAP4 and AM33XX.
+  Note that these two versions are incompatible.
+- ti,hwmods: Name of the hwmod associated with the SHAM module
+- reg : Offset and length of the register set for the module
+- interrupts : the interrupt-specifier for the SHAM module.
+
+Optional properties:
+- dmas: DMA specifiers for the rx dma. See the DMA client binding,
+	Documentation/devicetree/bindings/dma/dma.txt
+- dma-names: DMA request name. Should be "rx" if a dma is present.
+
+Example:
+	/* AM335x */
+	sham: sham@53100000 {
+		compatible = "ti,omap4-sham";
+		ti,hwmods = "sham";
+		reg = <0x53100000 0x200>;
+		interrupts = <109>;
+		dmas = <&edma 36>;
+		dma-names = "rx";
+	};
diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
index 0d6334875df8..8a9802ee6380 100644
--- a/arch/arm/boot/dts/am335x-bone.dts
+++ b/arch/arm/boot/dts/am335x-bone.dts
@@ -19,3 +19,7 @@
 &mmc1 {
 	vmmc-supply = <&ldo3_reg>;
 };
+
+&sham {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index 028ca096d18d..09786efc25c1 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -523,3 +523,7 @@
 	vmmc-supply = <&vmmc_reg>;
 	bus-width = <4>;
 };
+
+&sham {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts
index 563a2b136e0e..08d5cd9e6457 100644
--- a/arch/arm/boot/dts/am335x-evmsk.dts
+++ b/arch/arm/boot/dts/am335x-evmsk.dts
@@ -425,3 +425,7 @@
 	vmmc-supply = <&vmmc_reg>;
 	bus-width = <4>;
 };
+
+&sham {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 8aabaa0eb264..5f114a7f9484 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -712,5 +712,14 @@
 			#size-cells = <1>;
 			status = "disabled";
 		};
+
+		sham: sham@53100000 {
+			compatible = "ti,omap4-sham";
+			ti,hwmods = "sham";
+			reg = <0x53100000 0x200>;
+			interrupts = <109>;
+			dmas = <&edma 36>;
+			dma-names = "rx";
+		};
 	};
 };
-- 
cgit 


From 99919e5e1545d819023f44e5e97d2105af0ca613 Mon Sep 17 00:00:00 2001
From: "Mark A. Greer" <mgreer@animalcreek.com>
Date: Fri, 23 Aug 2013 14:12:36 -0700
Subject: ARM: dts: AM33XX: Add AES data and documentation

Add the generic AM33XX AES module's device tree data and
enable it for the am335x-evm, am335x-evmsk, and am335x-bone
platforms.  Also add Documentation file describing the data
for the AES module.

Cc: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Joel Fernandes <joelf@ti.com>
[joelf@ti.com: Dropped interrupt-parent property, documentation fixups]
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 .../devicetree/bindings/crypto/omap-aes.txt        | 31 ++++++++++++++++++++++
 arch/arm/boot/dts/am335x-bone.dts                  |  4 +++
 arch/arm/boot/dts/am335x-evm.dts                   |  4 +++
 arch/arm/boot/dts/am335x-evmsk.dts                 |  4 +++
 arch/arm/boot/dts/am33xx.dtsi                      | 10 +++++++
 5 files changed, 53 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/crypto/omap-aes.txt

diff --git a/Documentation/devicetree/bindings/crypto/omap-aes.txt b/Documentation/devicetree/bindings/crypto/omap-aes.txt
new file mode 100644
index 000000000000..fd9717653cbb
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/omap-aes.txt
@@ -0,0 +1,31 @@
+OMAP SoC AES crypto Module
+
+Required properties:
+
+- compatible : Should contain entries for this and backward compatible
+  AES versions:
+  - "ti,omap2-aes" for OMAP2.
+  - "ti,omap3-aes" for OMAP3.
+  - "ti,omap4-aes" for OMAP4 and AM33XX.
+  Note that the OMAP2 and 3 versions are compatible (OMAP3 supports
+  more algorithms) but they are incompatible with OMAP4.
+- ti,hwmods: Name of the hwmod associated with the AES module
+- reg : Offset and length of the register set for the module
+- interrupts : the interrupt-specifier for the AES module.
+
+Optional properties:
+- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
+	Documentation/devicetree/bindings/dma/dma.txt
+- dma-names: DMA request names should include "tx" and "rx" if present.
+
+Example:
+	/* AM335x */
+	aes: aes@53500000 {
+		compatible = "ti,omap4-aes";
+		ti,hwmods = "aes";
+		reg = <0x53500000 0xa0>;
+		interrupts = <102>;
+		dmas = <&edma 6>,
+		       <&edma 5>;
+		dma-names = "tx", "rx";
+	};
diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
index 8a9802ee6380..94ee427a6db1 100644
--- a/arch/arm/boot/dts/am335x-bone.dts
+++ b/arch/arm/boot/dts/am335x-bone.dts
@@ -23,3 +23,7 @@
 &sham {
 	status = "okay";
 };
+
+&aes {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index 09786efc25c1..ff834add842d 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -527,3 +527,7 @@
 &sham {
 	status = "okay";
 };
+
+&aes {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts
index 08d5cd9e6457..5f12b28dd593 100644
--- a/arch/arm/boot/dts/am335x-evmsk.dts
+++ b/arch/arm/boot/dts/am335x-evmsk.dts
@@ -429,3 +429,7 @@
 &sham {
 	status = "okay";
 };
+
+&aes {
+	status = "okay";
+};
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 5f114a7f9484..e36aed69a363 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -721,5 +721,15 @@
 			dmas = <&edma 36>;
 			dma-names = "rx";
 		};
+
+		aes: aes@53500000 {
+			compatible = "ti,omap4-aes";
+			ti,hwmods = "aes";
+			reg = <0x53500000 0xa0>;
+			interrupts = <102>;
+			dmas = <&edma 6>,
+			       <&edma 5>;
+			dma-names = "tx", "rx";
+		};
 	};
 };
-- 
cgit 


From 7af8884a175b56851ece09e47c74948c3160c07c Mon Sep 17 00:00:00 2001
From: Joel Fernandes <joelf@ti.com>
Date: Wed, 17 Jul 2013 19:07:52 -0500
Subject: ARM: dts: AM33XX: Fix AES interrupt number

AES interrupts were previously not used, but after recent changes
to omap-aes driver, its being used.
Correct the interrupt number to have working PIO mode.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am33xx.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index e36aed69a363..c87bf4b8acf2 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -726,7 +726,7 @@
 			compatible = "ti,omap4-aes";
 			ti,hwmods = "aes";
 			reg = <0x53500000 0xa0>;
-			interrupts = <102>;
+			interrupts = <103>;
 			dmas = <&edma 6>,
 			       <&edma 5>;
 			dma-names = "tx", "rx";
-- 
cgit 


From 6e70a510b4fc7b3e275e29875bb076e1891663d7 Mon Sep 17 00:00:00 2001
From: Joel Fernandes <joelf@ti.com>
Date: Tue, 24 Sep 2013 14:35:09 -0500
Subject: ARM: dts: AM437X: Add AES node

AM437x SoC has AES module similar to the one on OMAP4.
Add DT node for the same.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am4372.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index 0fe393ab8920..7e9ff75c28b2 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -411,5 +411,12 @@
 			ti,hwmods = "epwmss5";
 			status = "disabled";
 		};
+
+		aes: aes@53501000 {
+			compatible = "ti,omap4-aes";
+			ti,hwmods = "aes";
+			reg = <0x53501000 0xa0>;
+			interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
+		};
 	};
 };
-- 
cgit 


From 099f3a854832c5d30188783ad48ea9e302fba4f8 Mon Sep 17 00:00:00 2001
From: Joel Fernandes <joelf@ti.com>
Date: Tue, 24 Sep 2013 14:37:33 -0500
Subject: ARM: dts: AM437X: Add DES node

AM437x SoC has a DES3DES module similar to the one on OMAP4.
Add DT node for the same.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am4372.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index 7e9ff75c28b2..a403172430bc 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -418,5 +418,12 @@
 			reg = <0x53501000 0xa0>;
 			interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
 		};
+
+		des: des@53701000 {
+			compatible = "ti,omap4-des";
+			ti,hwmods = "des";
+			reg = <0x53701000 0xa0>;
+			interrupts = <GIC_SPI 130 IRQ_TYPE_LEVEL_HIGH>;
+		};
 	};
 };
-- 
cgit 


From d6cfc1e266d34d5b1f8a26bb272d2d2c466d89b8 Mon Sep 17 00:00:00 2001
From: Benoit Parrot <bparrot@ti.com>
Date: Thu, 8 Aug 2013 18:28:14 -0500
Subject: ARM: dts: AM33XX: Add LCDC info into am335x-evm

Add LCDC device node in DT for am33xx
Add LCDC and Panel info in DT for am335x-evm

Changes:
- remove redundant/unnecessary SoC specific setting in the board dts
- resolved conflicts on for_3.13/dts

Signed-off-by: Benoit Parrot <bparrot@ti.com>
Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am335x-evm.dts | 71 ++++++++++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/am33xx.dtsi    |  9 +++++
 2 files changed, 80 insertions(+)

diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index ff834add842d..eabacf9b8c31 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -85,6 +85,40 @@
 		brightness-levels = <0 51 53 56 62 75 101 152 255>;
 		default-brightness-level = <8>;
 	};
+
+	panel {
+		compatible = "ti,tilcdc,panel";
+		status = "okay";
+		pinctrl-names = "default";
+		pinctrl-0 = <&lcd_pins_s0>;
+		panel-info {
+			ac-bias           = <255>;
+			ac-bias-intrpt    = <0>;
+			dma-burst-sz      = <16>;
+			bpp               = <32>;
+			fdd               = <0x80>;
+			sync-edge         = <0>;
+			sync-ctrl         = <1>;
+			raster-order      = <0>;
+			fifo-th           = <0>;
+		};
+
+		display-timings {
+			800x480p62 {
+				clock-frequency = <30000000>;
+				hactive = <800>;
+				vactive = <480>;
+				hfront-porch = <39>;
+				hback-porch = <39>;
+				hsync-len = <47>;
+				vback-porch = <29>;
+				vfront-porch = <13>;
+				vsync-len = <2>;
+				hsync-active = <1>;
+				vsync-active = <1>;
+			};
+		};
+	};
 };
 
 &am33xx_pinmux {
@@ -212,6 +246,39 @@
 			0x14c (PIN_INPUT_PULLDOWN | MUX_MODE7)
 		>;
 	};
+
+	lcd_pins_s0: lcd_pins_s0 {
+		pinctrl-single,pins = <
+			0x20 0x01	/* gpmc_ad8.lcd_data16, OUTPUT | MODE1 */
+			0x24 0x01	/* gpmc_ad9.lcd_data17, OUTPUT | MODE1 */
+			0x28 0x01	/* gpmc_ad10.lcd_data18, OUTPUT | MODE1 */
+			0x2c 0x01	/* gpmc_ad11.lcd_data19, OUTPUT | MODE1 */
+			0x30 0x01	/* gpmc_ad12.lcd_data20, OUTPUT | MODE1 */
+			0x34 0x01	/* gpmc_ad13.lcd_data21, OUTPUT | MODE1 */
+			0x38 0x01	/* gpmc_ad14.lcd_data22, OUTPUT | MODE1 */
+			0x3c 0x01	/* gpmc_ad15.lcd_data23, OUTPUT | MODE1 */
+			0xa0 0x00	/* lcd_data0.lcd_data0, OUTPUT | MODE0 */
+			0xa4 0x00	/* lcd_data1.lcd_data1, OUTPUT | MODE0 */
+			0xa8 0x00	/* lcd_data2.lcd_data2, OUTPUT | MODE0 */
+			0xac 0x00	/* lcd_data3.lcd_data3, OUTPUT | MODE0 */
+			0xb0 0x00	/* lcd_data4.lcd_data4, OUTPUT | MODE0 */
+			0xb4 0x00	/* lcd_data5.lcd_data5, OUTPUT | MODE0 */
+			0xb8 0x00	/* lcd_data6.lcd_data6, OUTPUT | MODE0 */
+			0xbc 0x00	/* lcd_data7.lcd_data7, OUTPUT | MODE0 */
+			0xc0 0x00	/* lcd_data8.lcd_data8, OUTPUT | MODE0 */
+			0xc4 0x00	/* lcd_data9.lcd_data9, OUTPUT | MODE0 */
+			0xc8 0x00	/* lcd_data10.lcd_data10, OUTPUT | MODE0 */
+			0xcc 0x00	/* lcd_data11.lcd_data11, OUTPUT | MODE0 */
+			0xd0 0x00	/* lcd_data12.lcd_data12, OUTPUT | MODE0 */
+			0xd4 0x00	/* lcd_data13.lcd_data13, OUTPUT | MODE0 */
+			0xd8 0x00	/* lcd_data14.lcd_data14, OUTPUT | MODE0 */
+			0xdc 0x00	/* lcd_data15.lcd_data15, OUTPUT | MODE0 */
+			0xe0 0x00	/* lcd_vsync.lcd_vsync, OUTPUT | MODE0 */
+			0xe4 0x00	/* lcd_hsync.lcd_hsync, OUTPUT | MODE0 */
+			0xe8 0x00	/* lcd_pclk.lcd_pclk, OUTPUT | MODE0 */
+			0xec 0x00	/* lcd_ac_bias_en.lcd_ac_bias_en, OUTPUT | MODE0 */
+		>;
+	};
 };
 
 &uart0 {
@@ -308,6 +375,10 @@
 	};
 };
 
+&lcdc {
+	status = "okay";
+};
+
 &elm {
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index c87bf4b8acf2..7db3c81d1563 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -684,6 +684,15 @@
 			status = "disabled";
 		};
 
+		lcdc: lcdc@4830e000 {
+			compatible = "ti,am33xx-tilcdc";
+			reg = <0x4830e000 0x1000>;
+			interrupt-parent = <&intc>;
+			interrupts = <36>;
+			ti,hwmods = "lcdc";
+			status = "disabled";
+		};
+
 		tscadc: tscadc@44e0d000 {
 			compatible = "ti,am3359-tscadc";
 			reg = <0x44e0d000 0x1000>;
-- 
cgit 


From 559a08e89350e269a4bba93629f39da5dd8e4fef Mon Sep 17 00:00:00 2001
From: Darren Etheridge <detheridge@ti.com>
Date: Fri, 20 Sep 2013 15:01:42 -0500
Subject: ARM: dts: AM33XX beagle black: add pinmux and hdmi node to enable
 display

Enable the hdmi output and the LCD Controller on BeagleBone
Black. Also configure the correct pinmux for output of
video data from the SoC to the HDMI encoder.

Signed-off-by: Darren Etheridge <detheridge@ti.com>
Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am335x-boneblack.dts | 48 ++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/arch/arm/boot/dts/am335x-boneblack.dts b/arch/arm/boot/dts/am335x-boneblack.dts
index 16b3bea61d46..6b71ad95a5cf 100644
--- a/arch/arm/boot/dts/am335x-boneblack.dts
+++ b/arch/arm/boot/dts/am335x-boneblack.dts
@@ -28,3 +28,51 @@
 	status = "okay";
 	ti,vcc-aux-disable-is-sleep;
 };
+
+&am33xx_pinmux {
+	nxp_hdmi_bonelt_pins: nxp_hdmi_bonelt_pins {
+		pinctrl-single,pins = <
+			0x1b0 0x03      /* xdma_event_intr0, OMAP_MUX_MODE3 | AM33XX_PIN_OUTPUT */
+			0xa0 0x08       /* lcd_data0.lcd_data0, OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA */
+			0xa4 0x08       /* lcd_data1.lcd_data1, OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA */
+			0xa8 0x08       /* lcd_data2.lcd_data2, OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA */
+			0xac 0x08       /* lcd_data3.lcd_data3, OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA */
+			0xb0 0x08       /* lcd_data4.lcd_data4, OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA */
+			0xb4 0x08       /* lcd_data5.lcd_data5, OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA */
+			0xb8 0x08       /* lcd_data6.lcd_data6, OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA */
+			0xbc 0x08       /* lcd_data7.lcd_data7, OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA */
+			0xc0 0x08       /* lcd_data8.lcd_data8, OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA */
+			0xc4 0x08       /* lcd_data9.lcd_data9, OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA */
+			0xc8 0x08       /* lcd_data10.lcd_data10, OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA */
+			0xcc 0x08       /* lcd_data11.lcd_data11, OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA */
+			0xd0 0x08       /* lcd_data12.lcd_data12, OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA */
+			0xd4 0x08       /* lcd_data13.lcd_data13, OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA */
+			0xd8 0x08       /* lcd_data14.lcd_data14, OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA */
+			0xdc 0x08       /* lcd_data15.lcd_data15, OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT | AM33XX_PULL_DISA */
+			0xe0 0x00       /* lcd_vsync.lcd_vsync, OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT */
+			0xe4 0x00       /* lcd_hsync.lcd_hsync, OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT */
+			0xe8 0x00       /* lcd_pclk.lcd_pclk, OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT */
+			0xec 0x00       /* lcd_ac_bias_en.lcd_ac_bias_en, OMAP_MUX_MODE0 | AM33XX_PIN_OUTPUT */
+		>;
+	};
+	nxp_hdmi_bonelt_off_pins: nxp_hdmi_bonelt_off_pins {
+		pinctrl-single,pins = <
+			0x1b0 0x03      /* xdma_event_intr0, OMAP_MUX_MODE3 | AM33XX_PIN_OUTPUT */
+		>;
+	};
+};
+
+&lcdc {
+	status = "okay";
+};
+
+/ {
+	hdmi {
+		compatible = "ti,tilcdc,slave";
+		i2c = <&i2c0>;
+		pinctrl-names = "default", "off";
+		pinctrl-0 = <&nxp_hdmi_bonelt_pins>;
+		pinctrl-1 = <&nxp_hdmi_bonelt_off_pins>;
+		status = "okay";
+	};
+};
-- 
cgit 


From aa496bde78b9e6d1124b69b9f49acf4ee7d6b282 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Mon, 7 Oct 2013 17:12:23 +0200
Subject: ARM: dts: omap3-igep: Add USB OTG support

Commit ad871c10b ("ARM: dts: OMAP: Add usb_otg and glue data to O
added USB OTG support for most OMAP boards but some OMAP3 boards
such as IGEP boards were not updated. This patch adds an USB OTG
device node to these board.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Enric Balletbo i Serra <eballetbo@gmail.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-igep.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-igep.dtsi b/arch/arm/boot/dts/omap3-igep.dtsi
index 0f92224dc4fc..ba1e58b7b7e3 100644
--- a/arch/arm/boot/dts/omap3-igep.dtsi
+++ b/arch/arm/boot/dts/omap3-igep.dtsi
@@ -143,3 +143,12 @@
 &twl_gpio {
 	ti,use-leds;
 };
+
+&usb_otg_hs {
+	interface-type = <0>;
+	usb-phy = <&usb2_phy>;
+	phys = <&usb2_phy>;
+	phy-names = "usb2-phy";
+	mode = <3>;
+	power = <50>;
+};
-- 
cgit 


From 339e834fe06a2367ab8dcc18e57e810997ac9750 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Mon, 7 Oct 2013 17:12:24 +0200
Subject: ARM: dts: omap3-igep0020: Add HS USB Host support

Add device nodes for the HS USB Host port 1, USB PHY and its
required regulator and also pin mux setup for HS USB1 pins.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Enric Balletbo i Serra <eballetbo@gmail.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-igep0020.dts | 49 ++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-igep0020.dts b/arch/arm/boot/dts/omap3-igep0020.dts
index eedf0d8b42d5..35346f2473b6 100644
--- a/arch/arm/boot/dts/omap3-igep0020.dts
+++ b/arch/arm/boot/dts/omap3-igep0020.dts
@@ -55,6 +55,47 @@
 		regulator-name = "vdd33a";
 		regulator-always-on;
 	};
+
+       /* HS USB Port 1 Power */
+       hsusb1_power: hsusb1_power_reg {
+               compatible = "regulator-fixed";
+               regulator-name = "hsusb1_vbus";
+               regulator-min-microvolt = <3300000>;
+               regulator-max-microvolt = <3300000>;
+               gpio = <&twl_gpio 18 GPIO_ACTIVE_LOW>;	/* GPIO LEDA */
+               startup-delay-us = <70000>;
+       };
+
+	/* HS USB Host PHY on PORT 1 */
+	hsusb1_phy: hsusb1_phy {
+		compatible = "usb-nop-xceiv";
+		reset-gpios = <&gpio1 24 GPIO_ACTIVE_LOW>; /* gpio_24 */
+		vcc-supply = <&hsusb1_power>;
+	};
+};
+
+&omap3_pmx_core {
+	pinctrl-names = "default";
+	pinctrl-0 = <
+		&hsusbb1_pins
+	>;
+
+	hsusbb1_pins: pinmux_hsusbb1_pins {
+		pinctrl-single,pins = <
+			0x5aa (PIN_OUTPUT | MUX_MODE3)		/* etk_ctl.hsusb1_clk */
+			0x5a8 (PIN_OUTPUT | MUX_MODE3)		/* etk_clk.hsusb1_stp */
+			0x5bc (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* etk_d8.hsusb1_dir */
+			0x5be (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* etk_d9.hsusb1_nxt */
+			0x5ac (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* etk_d0.hsusb1_data0 */
+			0x5ae (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* etk_d1.hsusb1_data1 */
+			0x5b0 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* etk_d2.hsusb1_data2 */
+			0x5b2 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* etk_d3.hsusb1_data7 */
+			0x5b4 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* etk_d4.hsusb1_data4 */
+			0x5b6 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* etk_d5.hsusb1_data5 */
+			0x5b8 (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* etk_d6.hsusb1_data6 */
+			0x5ba (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* etk_d7.hsusb1_data3 */
+		>;
+	};
 };
 
 &leds_pins {
@@ -166,3 +207,11 @@
 		smsc,save-mac-address;
 	};
 };
+
+&usbhshost {
+	port1-mode = "ehci-phy";
+};
+
+&usbhsehci {
+	phys = <&hsusb1_phy>;
+};
-- 
cgit 


From 2892aef29f7a08240debbaae9706a29839fd8c03 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Mon, 7 Oct 2013 17:12:25 +0200
Subject: ARM: dts: omap3-igep0020: use standard constant for IRQ flags

Commit 840ef8b7 ("ARM: dt: add header to define IRQ flags") added
constants for IRQ edge/level triggered types so use it instead of
a magic number to enhance the DT readability.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-igep0020.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/omap3-igep0020.dts b/arch/arm/boot/dts/omap3-igep0020.dts
index 35346f2473b6..750ce84fc195 100644
--- a/arch/arm/boot/dts/omap3-igep0020.dts
+++ b/arch/arm/boot/dts/omap3-igep0020.dts
@@ -199,7 +199,7 @@
 		gpmc,cycle2cycle-diffcsen;
 
 		interrupt-parent = <&gpio6>;
-		interrupts = <16 8>;
+		interrupts = <16 IRQ_TYPE_LEVEL_LOW>;
 		vmmc-supply = <&vddvario>;
 		vmmc_aux-supply = <&vdd33a>;
 		reg-io-width = <4>;
-- 
cgit 


From 86583375aaf76fb2a03085100bbc3123c6ced559 Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Thu, 19 Sep 2013 14:11:36 -0500
Subject: ARM: dts: omap5-uevm: mark TWL6037 as system-power-controller

This allows the palmas pm_power_off to kick in on power off command
and switch off the board.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap5-uevm.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts
index 748f6bfbeef6..d784b3a00410 100644
--- a/arch/arm/boot/dts/omap5-uevm.dts
+++ b/arch/arm/boot/dts/omap5-uevm.dts
@@ -249,6 +249,7 @@
 		reg = <0x48>;
 		interrupt-controller;
 		#interrupt-cells = <2>;
+		ti,system-power-controller;
 
 		extcon_usb3: palmas_usb {
 			compatible = "ti,palmas-usb-vid";
-- 
cgit 


From 2841a5fc375e9c573d10b82db30fa8a4cc25301c Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 5 Oct 2013 00:23:12 +0100
Subject: spi: Provide per-message prepare and unprepare operations

Many SPI drivers perform setup and tear down on every message, usually
doing things like DMA mapping the message. Provide hooks for them to use
to provide such operations.

This is of limited value for drivers that implement transfer_one_message()
but will be of much greater utility with future factoring out of standard
implementations of that function.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi.c       | 22 ++++++++++++++++++++++
 include/linux/spi/spi.h | 11 +++++++++++
 2 files changed, 33 insertions(+)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 8bef0c9a7233..8a30c6b66a64 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -606,6 +606,18 @@ static void spi_pump_messages(struct kthread_work *work)
 
 	trace_spi_message_start(master->cur_msg);
 
+	if (master->prepare_message) {
+		ret = master->prepare_message(master, master->cur_msg);
+		if (ret) {
+			dev_err(&master->dev,
+				"failed to prepare message: %d\n", ret);
+			master->cur_msg->status = ret;
+			spi_finalize_current_message(master);
+			return;
+		}
+		master->cur_msg_prepared = true;
+	}
+
 	ret = master->transfer_one_message(master, master->cur_msg);
 	if (ret) {
 		dev_err(&master->dev,
@@ -687,6 +699,7 @@ void spi_finalize_current_message(struct spi_master *master)
 {
 	struct spi_message *mesg;
 	unsigned long flags;
+	int ret;
 
 	spin_lock_irqsave(&master->queue_lock, flags);
 	mesg = master->cur_msg;
@@ -695,6 +708,15 @@ void spi_finalize_current_message(struct spi_master *master)
 	queue_kthread_work(&master->kworker, &master->pump_messages);
 	spin_unlock_irqrestore(&master->queue_lock, flags);
 
+	if (master->cur_msg_prepared && master->unprepare_message) {
+		ret = master->unprepare_message(master, mesg);
+		if (ret) {
+			dev_err(&master->dev,
+				"failed to unprepare message: %d\n", ret);
+		}
+	}
+	master->cur_msg_prepared = false;
+
 	mesg->state = NULL;
 	if (mesg->complete)
 		mesg->complete(mesg->context);
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 887116dbce2c..000b50bee6c0 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -257,6 +257,8 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv)
  * @queue_lock: spinlock to syncronise access to message queue
  * @queue: message queue
  * @cur_msg: the currently in-flight message
+ * @cur_msg_prepared: spi_prepare_message was called for the currently
+ *                    in-flight message
  * @busy: message pump is busy
  * @running: message pump is running
  * @rt: whether this queue is set to run as a realtime task
@@ -274,6 +276,10 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv)
  * @unprepare_transfer_hardware: there are currently no more messages on the
  *	queue so the subsystem notifies the driver that it may relax the
  *	hardware by issuing this call
+ * @prepare_message: set up the controller to transfer a single message,
+ *                   for example doing DMA mapping.  Called from threaded
+ *                   context.
+ * @unprepare_message: undo any work done by prepare_message().
  * @cs_gpios: Array of GPIOs to use as chip select lines; one per CS
  *	number. Any individual value may be -ENOENT for CS lines that
  *	are not GPIOs (driven by the SPI controller itself).
@@ -388,11 +394,16 @@ struct spi_master {
 	bool				running;
 	bool				rt;
 	bool				auto_runtime_pm;
+	bool                            cur_msg_prepared;
 
 	int (*prepare_transfer_hardware)(struct spi_master *master);
 	int (*transfer_one_message)(struct spi_master *master,
 				    struct spi_message *mesg);
 	int (*unprepare_transfer_hardware)(struct spi_master *master);
+	int (*prepare_message)(struct spi_master *master,
+			       struct spi_message *message);
+	int (*unprepare_message)(struct spi_master *master,
+				 struct spi_message *message);
 
 	/* gpio chip select */
 	int			*cs_gpios;
-- 
cgit 


From 6bb9c0e34185717f5b0df4ad468476f64f0d73fb Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 5 Oct 2013 00:42:58 +0100
Subject: spi/s3c64xx: Use prepare_message() and unprepare_message()

This is of very little value in itself but will be useful once the loop
iterating over the transfers is also factored out into the core.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-s3c64xx.c | 36 ++++++++++++++++++++++++++++--------
 1 file changed, 28 insertions(+), 8 deletions(-)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 512b8893893b..27b744be982e 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -862,16 +862,12 @@ static void s3c64xx_spi_unmap_mssg(struct s3c64xx_spi_driver_data *sdd,
 	}
 }
 
-static int s3c64xx_spi_transfer_one_message(struct spi_master *master,
-					    struct spi_message *msg)
+static int s3c64xx_spi_prepare_message(struct spi_master *master,
+				       struct spi_message *msg)
 {
 	struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
 	struct spi_device *spi = msg->spi;
 	struct s3c64xx_spi_csinfo *cs = spi->controller_data;
-	struct spi_transfer *xfer;
-	int status = 0, cs_toggle = 0;
-	u32 speed;
-	u8 bpw;
 
 	/* If Master's(controller) state differs from that needed by Slave */
 	if (sdd->cur_speed != spi->max_speed_hz
@@ -887,13 +883,25 @@ static int s3c64xx_spi_transfer_one_message(struct spi_master *master,
 	if (s3c64xx_spi_map_mssg(sdd, msg)) {
 		dev_err(&spi->dev,
 			"Xfer: Unable to map message buffers!\n");
-		status = -ENOMEM;
-		goto out;
+		return -ENOMEM;
 	}
 
 	/* Configure feedback delay */
 	writel(cs->fb_delay & 0x3, sdd->regs + S3C64XX_SPI_FB_CLK);
 
+	return 0;
+}
+
+static int s3c64xx_spi_transfer_one_message(struct spi_master *master,
+					    struct spi_message *msg)
+{
+	struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
+	struct spi_device *spi = msg->spi;
+	struct spi_transfer *xfer;
+	int status = 0, cs_toggle = 0;
+	u32 speed;
+	u8 bpw;
+
 	list_for_each_entry(xfer, &msg->transfers, transfer_list) {
 
 		unsigned long flags;
@@ -991,6 +999,16 @@ out:
 	return 0;
 }
 
+static int s3c64xx_spi_unprepare_message(struct spi_master *master,
+					    struct spi_message *msg)
+{
+	struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
+
+	s3c64xx_spi_unmap_mssg(sdd, msg);
+
+	return 0;
+}
+
 static struct s3c64xx_spi_csinfo *s3c64xx_get_slave_ctrldata(
 				struct spi_device *spi)
 {
@@ -1359,7 +1377,9 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
 	master->setup = s3c64xx_spi_setup;
 	master->cleanup = s3c64xx_spi_cleanup;
 	master->prepare_transfer_hardware = s3c64xx_spi_prepare_transfer;
+	master->prepare_message = s3c64xx_spi_prepare_message;
 	master->transfer_one_message = s3c64xx_spi_transfer_one_message;
+	master->unprepare_message = s3c64xx_spi_unprepare_message;
 	master->unprepare_transfer_hardware = s3c64xx_spi_unprepare_transfer;
 	master->num_chipselect = sci->num_cs;
 	master->dma_alignment = 8;
-- 
cgit 


From b158935f70b9c156903338053216dd0adf7ce31c Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 5 Oct 2013 11:50:40 +0100
Subject: spi: Provide common spi_message processing loop

The loops which SPI controller drivers use to process the list of transfers
in a spi_message are typically very similar and have some error prone areas
such as the handling of /CS. Help simplify drivers by factoring this code
out into the core - if drivers provide a transfer_one() function instead
of a transfer_one_message() function the core will handle processing at the
message level.

/CS can be controlled by either setting cs_gpio or providing a set_cs
function. If this is not possible for hardware reasons then both can be
omitted and the driver should continue to implement manual /CS handling.

This is a first step in refactoring and it is expected that there will be
further enhancements, for example factoring out of the mapping of transfers
for DMA and the initiation and completion of interrupt driven transfers.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi.c          | 92 ++++++++++++++++++++++++++++++++++++++++++++++
 include/linux/spi/spi.h    | 21 ++++++++++-
 include/trace/events/spi.h | 42 +++++++++++++++++++++
 3 files changed, 153 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 8a30c6b66a64..85c18d8a86b3 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -526,6 +526,95 @@ int spi_register_board_info(struct spi_board_info const *info, unsigned n)
 
 /*-------------------------------------------------------------------------*/
 
+static void spi_set_cs(struct spi_device *spi, bool enable)
+{
+	if (spi->mode & SPI_CS_HIGH)
+		enable = !enable;
+
+	if (spi->cs_gpio >= 0)
+		gpio_set_value(spi->cs_gpio, !enable);
+	else if (spi->master->set_cs)
+		spi->master->set_cs(spi, !enable);
+}
+
+/*
+ * spi_transfer_one_message - Default implementation of transfer_one_message()
+ *
+ * This is a standard implementation of transfer_one_message() for
+ * drivers which impelment a transfer_one() operation.  It provides
+ * standard handling of delays and chip select management.
+ */
+static int spi_transfer_one_message(struct spi_master *master,
+				    struct spi_message *msg)
+{
+	struct spi_transfer *xfer;
+	bool cur_cs = true;
+	bool keep_cs = false;
+	int ret = 0;
+
+	spi_set_cs(msg->spi, true);
+
+	list_for_each_entry(xfer, &msg->transfers, transfer_list) {
+		trace_spi_transfer_start(msg, xfer);
+
+		INIT_COMPLETION(master->xfer_completion);
+
+		ret = master->transfer_one(master, msg->spi, xfer);
+		if (ret < 0) {
+			dev_err(&msg->spi->dev,
+				"SPI transfer failed: %d\n", ret);
+			goto out;
+		}
+
+		if (ret > 0)
+			wait_for_completion(&master->xfer_completion);
+
+		trace_spi_transfer_stop(msg, xfer);
+
+		if (msg->status != -EINPROGRESS)
+			goto out;
+
+		if (xfer->delay_usecs)
+			udelay(xfer->delay_usecs);
+
+		if (xfer->cs_change) {
+			if (list_is_last(&xfer->transfer_list,
+					 &msg->transfers)) {
+				keep_cs = true;
+			} else {
+				cur_cs = !cur_cs;
+				spi_set_cs(msg->spi, cur_cs);
+			}
+		}
+
+		msg->actual_length += xfer->len;
+	}
+
+out:
+	if (ret != 0 || !keep_cs)
+		spi_set_cs(msg->spi, false);
+
+	if (msg->status == -EINPROGRESS)
+		msg->status = ret;
+
+	spi_finalize_current_message(master);
+
+	return ret;
+}
+
+/**
+ * spi_finalize_current_transfer - report completion of a transfer
+ *
+ * Called by SPI drivers using the core transfer_one_message()
+ * implementation to notify it that the current interrupt driven
+ * transfer has finised and the next one may be scheduled.
+ */
+void spi_finalize_current_transfer(struct spi_master *master)
+{
+	complete(&master->xfer_completion);
+}
+EXPORT_SYMBOL_GPL(spi_finalize_current_transfer);
+
 /**
  * spi_pump_messages - kthread work function which processes spi message queue
  * @work: pointer to kthread work struct contained in the master struct
@@ -836,6 +925,8 @@ static int spi_master_initialize_queue(struct spi_master *master)
 
 	master->queued = true;
 	master->transfer = spi_queued_transfer;
+	if (!master->transfer_one_message)
+		master->transfer_one_message = spi_transfer_one_message;
 
 	/* Initialize and start queue */
 	ret = spi_init_queue(master);
@@ -1242,6 +1333,7 @@ int spi_register_master(struct spi_master *master)
 	spin_lock_init(&master->bus_lock_spinlock);
 	mutex_init(&master->bus_lock_mutex);
 	master->bus_lock_flag = 0;
+	init_completion(&master->xfer_completion);
 
 	/* register the device, then userspace will see it.
 	 * registration fails if the bus ID is in use.
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h
index 000b50bee6c0..da371ab5ebeb 100644
--- a/include/linux/spi/spi.h
+++ b/include/linux/spi/spi.h
@@ -23,6 +23,7 @@
 #include <linux/mod_devicetable.h>
 #include <linux/slab.h>
 #include <linux/kthread.h>
+#include <linux/completion.h>
 
 /*
  * INTERFACES between SPI master-side drivers and SPI infrastructure.
@@ -150,8 +151,7 @@ static inline void *spi_get_drvdata(struct spi_device *spi)
 }
 
 struct spi_message;
-
-
+struct spi_transfer;
 
 /**
  * struct spi_driver - Host side "protocol" driver
@@ -259,6 +259,7 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv)
  * @cur_msg: the currently in-flight message
  * @cur_msg_prepared: spi_prepare_message was called for the currently
  *                    in-flight message
+ * @xfer_completion: used by core tranfer_one_message()
  * @busy: message pump is busy
  * @running: message pump is running
  * @rt: whether this queue is set to run as a realtime task
@@ -276,9 +277,15 @@ static inline void spi_unregister_driver(struct spi_driver *sdrv)
  * @unprepare_transfer_hardware: there are currently no more messages on the
  *	queue so the subsystem notifies the driver that it may relax the
  *	hardware by issuing this call
+ * @set_cs: assert or deassert chip select, true to assert.  May be called
+ *          from interrupt context.
  * @prepare_message: set up the controller to transfer a single message,
  *                   for example doing DMA mapping.  Called from threaded
  *                   context.
+ * @transfer_one: transfer a single spi_transfer. When the
+ *	          driver is finished with this transfer it must call
+ *	          spi_finalize_current_transfer() so the subsystem can issue
+ *                the next transfer
  * @unprepare_message: undo any work done by prepare_message().
  * @cs_gpios: Array of GPIOs to use as chip select lines; one per CS
  *	number. Any individual value may be -ENOENT for CS lines that
@@ -395,6 +402,7 @@ struct spi_master {
 	bool				rt;
 	bool				auto_runtime_pm;
 	bool                            cur_msg_prepared;
+	struct completion               xfer_completion;
 
 	int (*prepare_transfer_hardware)(struct spi_master *master);
 	int (*transfer_one_message)(struct spi_master *master,
@@ -405,6 +413,14 @@ struct spi_master {
 	int (*unprepare_message)(struct spi_master *master,
 				 struct spi_message *message);
 
+	/*
+	 * These hooks are for drivers that use a generic implementation
+	 * of transfer_one_message() provied by the core.
+	 */
+	void (*set_cs)(struct spi_device *spi, bool enable);
+	int (*transfer_one)(struct spi_master *master, struct spi_device *spi,
+			    struct spi_transfer *transfer);
+
 	/* gpio chip select */
 	int			*cs_gpios;
 };
@@ -439,6 +455,7 @@ extern int spi_master_resume(struct spi_master *master);
 /* Calls the driver make to interact with the message queue */
 extern struct spi_message *spi_get_next_queued_message(struct spi_master *master);
 extern void spi_finalize_current_message(struct spi_master *master);
+extern void spi_finalize_current_transfer(struct spi_master *master);
 
 /* the spi driver core manages memory for the spi_master classdev */
 extern struct spi_master *
diff --git a/include/trace/events/spi.h b/include/trace/events/spi.h
index 5e77e21f885a..7e02c983bbe2 100644
--- a/include/trace/events/spi.h
+++ b/include/trace/events/spi.h
@@ -108,6 +108,48 @@ TRACE_EVENT(spi_message_done,
                   (unsigned)__entry->actual, (unsigned)__entry->frame)
 );
 
+DECLARE_EVENT_CLASS(spi_transfer,
+
+	TP_PROTO(struct spi_message *msg, struct spi_transfer *xfer),
+
+	TP_ARGS(msg, xfer),
+
+	TP_STRUCT__entry(
+		__field(        int,            bus_num         )
+		__field(        int,            chip_select     )
+		__field(        struct spi_transfer *,   xfer   )
+		__field(        int,            len             )
+	),
+
+	TP_fast_assign(
+		__entry->bus_num = msg->spi->master->bus_num;
+		__entry->chip_select = msg->spi->chip_select;
+		__entry->xfer = xfer;
+		__entry->len = xfer->len;
+	),
+
+        TP_printk("spi%d.%d %p len=%d", (int)__entry->bus_num,
+		  (int)__entry->chip_select,
+		  (struct spi_message *)__entry->xfer,
+		  (int)__entry->len)
+);
+
+DEFINE_EVENT(spi_transfer, spi_transfer_start,
+
+	TP_PROTO(struct spi_message *msg, struct spi_transfer *xfer),
+
+	TP_ARGS(msg, xfer)
+
+);
+
+DEFINE_EVENT(spi_transfer, spi_transfer_stop,
+
+	TP_PROTO(struct spi_message *msg, struct spi_transfer *xfer),
+
+	TP_ARGS(msg, xfer)
+
+);
+
 #endif /* _TRACE_POWER_H */
 
 /* This part must be outside protection */
-- 
cgit 


From 0732a9d2a1551e3be5fd8a3ea680deb3d9e56193 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 5 Oct 2013 11:51:14 +0100
Subject: spi/s3c64xx: Use core message handling

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-s3c64xx.c | 152 +++++++++++++++++-----------------------------
 1 file changed, 56 insertions(+), 96 deletions(-)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index c7b36c06ef40..25eb352d6a42 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -879,121 +879,81 @@ static int s3c64xx_spi_prepare_message(struct spi_master *master,
 	return 0;
 }
 
-static int s3c64xx_spi_transfer_one_message(struct spi_master *master,
-					    struct spi_message *msg)
+static int s3c64xx_spi_transfer_one(struct spi_master *master,
+				    struct spi_device *spi,
+				    struct spi_transfer *xfer)
 {
 	struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
-	struct spi_device *spi = msg->spi;
-	struct spi_transfer *xfer;
-	int status = 0, cs_toggle = 0;
+	int status;
 	u32 speed;
 	u8 bpw;
+	unsigned long flags;
+	int use_dma;
 
-	list_for_each_entry(xfer, &msg->transfers, transfer_list) {
-
-		unsigned long flags;
-		int use_dma;
-
-		INIT_COMPLETION(sdd->xfer_completion);
-
-		/* Only BPW and Speed may change across transfers */
-		bpw = xfer->bits_per_word;
-		speed = xfer->speed_hz ? : spi->max_speed_hz;
-
-		if (xfer->len % (bpw / 8)) {
-			dev_err(&spi->dev,
-				"Xfer length(%u) not a multiple of word size(%u)\n",
-				xfer->len, bpw / 8);
-			status = -EIO;
-			goto out;
-		}
-
-		if (bpw != sdd->cur_bpw || speed != sdd->cur_speed) {
-			sdd->cur_bpw = bpw;
-			sdd->cur_speed = speed;
-			s3c64xx_spi_config(sdd);
-		}
-
-		/* Slave Select */
-		enable_cs(sdd, spi);
-
-		/* Polling method for xfers not bigger than FIFO capacity */
-		use_dma = 0;
-		if (!is_polling(sdd) &&
-			(sdd->rx_dma.ch && sdd->tx_dma.ch &&
-			(xfer->len > ((FIFO_LVL_MASK(sdd) >> 1) + 1))))
-			use_dma = 1;
-
-		spin_lock_irqsave(&sdd->lock, flags);
+	INIT_COMPLETION(sdd->xfer_completion);
 
-		/* Pending only which is to be done */
-		sdd->state &= ~RXBUSY;
-		sdd->state &= ~TXBUSY;
+	/* Only BPW and Speed may change across transfers */
+	bpw = xfer->bits_per_word;
+	speed = xfer->speed_hz ? : spi->max_speed_hz;
 
-		enable_datapath(sdd, spi, xfer, use_dma);
-
-		/* Start the signals */
-		writel(0, sdd->regs + S3C64XX_SPI_SLAVE_SEL);
+	if (xfer->len % (bpw / 8)) {
+		dev_err(&spi->dev,
+			"Xfer length(%u) not a multiple of word size(%u)\n",
+			xfer->len, bpw / 8);
+		return -EIO;
+	}
 
-		/* Start the signals */
-		writel(0, sdd->regs + S3C64XX_SPI_SLAVE_SEL);
+	if (bpw != sdd->cur_bpw || speed != sdd->cur_speed) {
+		sdd->cur_bpw = bpw;
+		sdd->cur_speed = speed;
+		s3c64xx_spi_config(sdd);
+	}
 
-		spin_unlock_irqrestore(&sdd->lock, flags);
+	/* Polling method for xfers not bigger than FIFO capacity */
+	use_dma = 0;
+	if (!is_polling(sdd) &&
+	    (sdd->rx_dma.ch && sdd->tx_dma.ch &&
+	     (xfer->len > ((FIFO_LVL_MASK(sdd) >> 1) + 1))))
+		use_dma = 1;
 
-		status = wait_for_xfer(sdd, xfer, use_dma);
+	spin_lock_irqsave(&sdd->lock, flags);
 
-		if (status) {
-			dev_err(&spi->dev, "I/O Error: rx-%d tx-%d res:rx-%c tx-%c len-%d\n",
-				xfer->rx_buf ? 1 : 0, xfer->tx_buf ? 1 : 0,
-				(sdd->state & RXBUSY) ? 'f' : 'p',
-				(sdd->state & TXBUSY) ? 'f' : 'p',
-				xfer->len);
+	/* Pending only which is to be done */
+	sdd->state &= ~RXBUSY;
+	sdd->state &= ~TXBUSY;
 
-			if (use_dma) {
-				if (xfer->tx_buf != NULL
-						&& (sdd->state & TXBUSY))
-					s3c64xx_spi_dma_stop(sdd, &sdd->tx_dma);
-				if (xfer->rx_buf != NULL
-						&& (sdd->state & RXBUSY))
-					s3c64xx_spi_dma_stop(sdd, &sdd->rx_dma);
-			}
+	enable_datapath(sdd, spi, xfer, use_dma);
 
-			goto out;
-		}
+	/* Start the signals */
+	writel(0, sdd->regs + S3C64XX_SPI_SLAVE_SEL);
 
-		flush_fifo(sdd);
+	/* Start the signals */
+	writel(0, sdd->regs + S3C64XX_SPI_SLAVE_SEL);
 
-		if (xfer->delay_usecs)
-			udelay(xfer->delay_usecs);
+	spin_unlock_irqrestore(&sdd->lock, flags);
 
-		if (xfer->cs_change) {
-			/* Hint that the next mssg is gonna be
-			   for the same device */
-			if (list_is_last(&xfer->transfer_list,
-						&msg->transfers))
-				cs_toggle = 1;
+	status = wait_for_xfer(sdd, xfer, use_dma);
+
+	if (status) {
+		dev_err(&spi->dev, "I/O Error: rx-%d tx-%d res:rx-%c tx-%c len-%d\n",
+			xfer->rx_buf ? 1 : 0, xfer->tx_buf ? 1 : 0,
+			(sdd->state & RXBUSY) ? 'f' : 'p',
+			(sdd->state & TXBUSY) ? 'f' : 'p',
+			xfer->len);
+
+		if (use_dma) {
+			if (xfer->tx_buf != NULL
+			    && (sdd->state & TXBUSY))
+				s3c64xx_spi_dma_stop(sdd, &sdd->tx_dma);
+			if (xfer->rx_buf != NULL
+			    && (sdd->state & RXBUSY))
+				s3c64xx_spi_dma_stop(sdd, &sdd->rx_dma);
 		}
-
-		msg->actual_length += xfer->len;
-	}
-
-out:
-	if (!cs_toggle || status) {
-		/* Quiese the signals */
-		writel(S3C64XX_SPI_SLAVE_SIG_INACT,
-		       sdd->regs + S3C64XX_SPI_SLAVE_SEL);
-		disable_cs(sdd, spi);
 	} else {
-		sdd->tgl_spi = spi;
+		flush_fifo(sdd);
 	}
 
-	s3c64xx_spi_unmap_mssg(sdd, msg);
-
-	msg->status = status;
-
-	spi_finalize_current_message(master);
-
-	return 0;
+	return status;
 }
 
 static int s3c64xx_spi_unprepare_message(struct spi_master *master,
@@ -1379,7 +1339,7 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
 	master->cleanup = s3c64xx_spi_cleanup;
 	master->prepare_transfer_hardware = s3c64xx_spi_prepare_transfer;
 	master->prepare_message = s3c64xx_spi_prepare_message;
-	master->transfer_one_message = s3c64xx_spi_transfer_one_message;
+	master->transfer_one = s3c64xx_spi_transfer_one;
 	master->unprepare_message = s3c64xx_spi_unprepare_message;
 	master->unprepare_transfer_hardware = s3c64xx_spi_unprepare_transfer;
 	master->num_chipselect = sci->num_cs;
-- 
cgit 


From bf1788df8f99e5bcd8e9e0bbdacaf193ca2cbb68 Mon Sep 17 00:00:00 2001
From: Balaji T K <balajitk@ti.com>
Date: Mon, 7 Oct 2013 21:55:03 +0530
Subject: ARM: dts: dra7-evm: Add mmc1 node for micro-sd support

Add mmc1 dt node to dra7-evm board.
Input for ldo1 regulator is controlled by gpio 5 of pcf8575 chip (0x21)
on i2c1 bus. When dt support for gpio-pcf857x is available, input supply
will be modelled as cascaded regulator.

Signed-off-by: Balaji T K <balajitk@ti.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/dra7-evm.dts | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index fbbe40625508..65cd15a92cb1 100644
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -250,3 +250,9 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart3_pins>;
 };
+
+&mmc1 {
+	status = "okay";
+	vmmc-supply = <&ldo1_reg>;
+	bus-width = <4>;
+};
-- 
cgit 


From 6cf02dbb4b71f1c0c9acec89ae2df3b2318135f4 Mon Sep 17 00:00:00 2001
From: Balaji T K <balajitk@ti.com>
Date: Mon, 7 Oct 2013 21:55:04 +0530
Subject: ARM: dts: dra7-evm: Add mmc2 node for eMMC support

Add mmc2 dt node to dra7-evm board
and model eMMC vcc as fixed regulator.

Signed-off-by: Balaji T K <balajitk@ti.com>
Acked-by: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/dra7-evm.dts | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index 65cd15a92cb1..3abf5f41e5cc 100644
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -17,6 +17,13 @@
 		device_type = "memory";
 		reg = <0x80000000 0x60000000>; /* 1536 MB */
 	};
+
+	mmc2_3v3: fixedregulator-mmc2 {
+		compatible = "regulator-fixed";
+		regulator-name = "mmc2_3v3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
 };
 
 &dra7_pmx_core {
@@ -256,3 +263,9 @@
 	vmmc-supply = <&ldo1_reg>;
 	bus-width = <4>;
 };
+
+&mmc2 {
+	status = "okay";
+	vmmc-supply = <&mmc2_3v3>;
+	bus-width = <8>;
+};
-- 
cgit 


From ed774fbbeef15c71a815ed614551d9c8fd1c2363 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Fri, 4 Oct 2013 23:07:48 +0200
Subject: Documentation: sunxi: Update A13 user manual dead link

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 Documentation/arm/sunxi/README | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/arm/sunxi/README b/Documentation/arm/sunxi/README
index e3f93fb9224e..4f3855f85fae 100644
--- a/Documentation/arm/sunxi/README
+++ b/Documentation/arm/sunxi/README
@@ -25,4 +25,4 @@ SunXi family
         + Datasheet
 	  http://dl.linux-sunxi.org/A13/A13%20Datasheet%20-%20v1.12%20%282012-03-29%29.pdf
         + User Manual
-	  http://dl.linux-sunxi.org/A13/A13%20User%20Manual%20-%20v1.2%20%282013-08-08%29.pdf
+          http://dl.linux-sunxi.org/A13/A13%20User%20Manual%20-%20v1.2%20%282013-01-08%29.pdf
\ No newline at end of file
-- 
cgit 


From 65788ab227fa06facded196f31f2c77099b7e043 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Fri, 4 Oct 2013 23:14:10 +0200
Subject: Documentation: sunxi: Update Allwinner SoC documentation

Since that document was first submitted, some new SoCs have been
announced/released by Allwinner. Update the documentation to mention
those and the related documents.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 Documentation/arm/sunxi/README | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/Documentation/arm/sunxi/README b/Documentation/arm/sunxi/README
index 4f3855f85fae..7945238453ed 100644
--- a/Documentation/arm/sunxi/README
+++ b/Documentation/arm/sunxi/README
@@ -10,6 +10,10 @@ SunXi family
   Linux kernel mach directory: arch/arm/mach-sunxi
 
   Flavors:
+    * ARM926 based SoCs
+      - Allwinner F20 (sun3i)
+        + Not Supported
+
     * ARM Cortex-A8 based SoCs
       - Allwinner A10 (sun4i)
         + Datasheet
@@ -25,4 +29,24 @@ SunXi family
         + Datasheet
 	  http://dl.linux-sunxi.org/A13/A13%20Datasheet%20-%20v1.12%20%282012-03-29%29.pdf
         + User Manual
-          http://dl.linux-sunxi.org/A13/A13%20User%20Manual%20-%20v1.2%20%282013-01-08%29.pdf
\ No newline at end of file
+          http://dl.linux-sunxi.org/A13/A13%20User%20Manual%20-%20v1.2%20%282013-01-08%29.pdf
+
+    * Dual ARM Cortex-A7 based SoCs
+      - Allwinner A20 (sun7i)
+        + User Manual
+          http://dl.linux-sunxi.org/A20/A20%20User%20Manual%202013-03-22.pdf
+
+      - Allwinner A23
+        + Not Supported
+
+    * Quad ARM Cortex-A7 based SoCs
+      - Allwinner A31 (sun6i)
+        + Datasheet
+          http://dl.linux-sunxi.org/A31/A31%20Datasheet%20-%20v1.00%20(2012-12-24).pdf
+
+      - Allwinner A31s (sun6i)
+        + Not Supported
+
+    * Quad ARM Cortex-A15, Quad ARM Cortex-A7 based SoCs
+      - Allwinner A80
+        + Not Supported
\ No newline at end of file
-- 
cgit 


From 9339ce4577fe998af7e70c0cc4ac8147e3ee18eb Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Fri, 4 Oct 2013 23:19:54 +0200
Subject: Documentation: dt: Remove interrupt sources list for Allwinner SoCs

That documentation was mostly useful when we didn't have any
documentation for those SoCs, which is not the case anymore. Remove
this, since it should live in the DT anyway.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Mark Rutland <mark.rutland@arm.com>
---
 .../interrupt-controller/allwinner,sun4i-ic.txt    |  3 -
 .../interrupt-controller/sunxi/sun4i-a10.txt       | 89 ----------------------
 .../interrupt-controller/sunxi/sun5i-a13.txt       | 55 -------------
 3 files changed, 147 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/interrupt-controller/sunxi/sun4i-a10.txt
 delete mode 100644 Documentation/devicetree/bindings/interrupt-controller/sunxi/sun5i-a13.txt

diff --git a/Documentation/devicetree/bindings/interrupt-controller/allwinner,sun4i-ic.txt b/Documentation/devicetree/bindings/interrupt-controller/allwinner,sun4i-ic.txt
index 57edb30dbbca..3d3b2b91e333 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/allwinner,sun4i-ic.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/allwinner,sun4i-ic.txt
@@ -8,9 +8,6 @@ Required properties:
 - #interrupt-cells : Specifies the number of cells needed to encode an
   interrupt source. The value shall be 1.
 
-For the valid interrupt sources for your SoC, see the documentation in
-sunxi/<soc>.txt
-
 Example:
 
 intc: interrupt-controller {
diff --git a/Documentation/devicetree/bindings/interrupt-controller/sunxi/sun4i-a10.txt b/Documentation/devicetree/bindings/interrupt-controller/sunxi/sun4i-a10.txt
deleted file mode 100644
index 76b98c834499..000000000000
--- a/Documentation/devicetree/bindings/interrupt-controller/sunxi/sun4i-a10.txt
+++ /dev/null
@@ -1,89 +0,0 @@
-Allwinner A10 (sun4i) interrupt sources
----------------------------------------
-
-The interrupt sources available for the Allwinner A10 SoC are the
-following one:
-
-0: ENMI
-1: UART0
-2: UART1
-3: UART2
-4: UART3
-5: IR0
-6: IR1
-7: I2C0
-8: I2C1
-9: I2C2
-10: SPI0
-11: SPI1
-12: SPI2
-13: SPDIF
-14: AC97
-15: TS
-16: I2S
-17: UART4
-18: UART5
-19: UART6
-20: UART7
-21: KEYPAD
-22: TIMER0
-23: TIMER1
-24: TIMER2
-25: TIMER3
-26: CAN
-27: DMA
-28: PIO
-29: TOUCH_PANEL
-30: AUDIO_CODEC
-31: LRADC
-32: MMC0
-33: MMC1
-34: MMC2
-35: MMC3
-36: MEMSTICK
-37: NAND
-38: USB0
-39: USB1
-40: USB2
-41: SCR
-42: CSI0
-43: CSI1
-44: LCDCTRL0
-45: LCDCTRL1
-46: MP
-47: DEFEBE0
-48: DEFEBE1
-49: PMU
-50: SPI3
-51: TZASC
-52: PATA
-53: VE
-54: SS
-55: EMAC
-56: SATA
-57: GPS
-58: HDMI
-59: TVE
-60: ACE
-61: TVD
-62: PS2_0
-63: PS2_1
-64: USB3
-65: USB4
-66: PLE_PFM
-67: TIMER4
-68: TIMER5
-69: GPU_GP
-70: GPU_GPMMU
-71: GPU_PP0
-72: GPU_PPMMU0
-73: GPU_PMU
-74: GPU_RSV0
-75: GPU_RSV1
-76: GPU_RSV2
-77: GPU_RSV3
-78: GPU_RSV4
-79: GPU_RSV5
-80: GPU_RSV6
-82: SYNC_TIMER0
-83: SYNC_TIMER1
diff --git a/Documentation/devicetree/bindings/interrupt-controller/sunxi/sun5i-a13.txt b/Documentation/devicetree/bindings/interrupt-controller/sunxi/sun5i-a13.txt
deleted file mode 100644
index 2ec3b5ce1a0b..000000000000
--- a/Documentation/devicetree/bindings/interrupt-controller/sunxi/sun5i-a13.txt
+++ /dev/null
@@ -1,55 +0,0 @@
-Allwinner A13 (sun5i) interrupt sources
----------------------------------------
-
-The interrupt sources available for the Allwinner A13 SoC are the
-following one:
-
-0: ENMI
-2: UART1
-4: UART3
-5: IR
-7: I2C0
-8: I2C1
-9: I2C2
-10: SPI0
-11: SPI1
-12: SPI2
-22: TIMER0
-23: TIMER1
-24: TIMER2
-25: TIMER3
-27: DMA
-28: PIO
-29: TOUCH_PANEL
-30: AUDIO_CODEC
-31: LRADC
-32: MMC0
-33: MMC1
-34: MMC2
-37: NAND
-38: USB OTG
-39: USB EHCI
-40: USB OHCI
-42: CSI
-44: LCDCTRL
-47: DEFEBE
-49: PMU
-53: VE
-54: SS
-66: PLE_PFM
-67: TIMER4
-68: TIMER5
-69: GPU_GP
-70: GPU_GPMMU
-71: GPU_PP0
-72: GPU_PPMMU0
-73: GPU_PMU
-74: GPU_RSV0
-75: GPU_RSV1
-76: GPU_RSV2
-77: GPU_RSV3
-78: GPU_RSV4
-79: GPU_RSV5
-80: GPU_RSV6
-82: SYNC_TIMER0
-83: SYNC_TIMER1
-- 
cgit 


From fc42ef5121687d917bbdd96805fb70c28a2ad023 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Fri, 4 Oct 2013 23:19:54 +0200
Subject: Documentation: dt: Remove clock gates IDs list for Allwinner SoCs

That documentation was mostly useful when we didn't have any
documentation for those SoCs, which is not the case anymore. Remove
this, since it should live in the DT anyway.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Mark Rutland <mark.rutland@arm.com>
---
 Documentation/devicetree/bindings/clock/sunxi.txt  |  4 +-
 .../bindings/clock/sunxi/sun4i-a10-gates.txt       | 93 --------------------
 .../bindings/clock/sunxi/sun5i-a10s-gates.txt      | 75 -----------------
 .../bindings/clock/sunxi/sun5i-a13-gates.txt       | 58 -------------
 .../bindings/clock/sunxi/sun6i-a31-gates.txt       | 83 ------------------
 .../bindings/clock/sunxi/sun7i-a20-gates.txt       | 98 ----------------------
 6 files changed, 2 insertions(+), 409 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/clock/sunxi/sun4i-a10-gates.txt
 delete mode 100644 Documentation/devicetree/bindings/clock/sunxi/sun5i-a10s-gates.txt
 delete mode 100644 Documentation/devicetree/bindings/clock/sunxi/sun5i-a13-gates.txt
 delete mode 100644 Documentation/devicetree/bindings/clock/sunxi/sun6i-a31-gates.txt
 delete mode 100644 Documentation/devicetree/bindings/clock/sunxi/sun7i-a20-gates.txt

diff --git a/Documentation/devicetree/bindings/clock/sunxi.txt b/Documentation/devicetree/bindings/clock/sunxi.txt
index 00a5c26454eb..91a748fed13d 100644
--- a/Documentation/devicetree/bindings/clock/sunxi.txt
+++ b/Documentation/devicetree/bindings/clock/sunxi.txt
@@ -45,8 +45,8 @@ Additionally, "allwinner,*-gates-clk" clocks require:
 
 Clock consumers should specify the desired clocks they use with a
 "clocks" phandle cell. Consumers that are using a gated clock should
-provide an additional ID in their clock property. The values of this
-ID are documented in sunxi/<soc>-gates.txt.
+provide an additional ID in their clock property. This ID is the
+offset of the bit controlling this particular gate in the register.
 
 For example:
 
diff --git a/Documentation/devicetree/bindings/clock/sunxi/sun4i-a10-gates.txt b/Documentation/devicetree/bindings/clock/sunxi/sun4i-a10-gates.txt
deleted file mode 100644
index 6a03475bbfe2..000000000000
--- a/Documentation/devicetree/bindings/clock/sunxi/sun4i-a10-gates.txt
+++ /dev/null
@@ -1,93 +0,0 @@
-Gate clock outputs
-------------------
-
-  * AXI gates ("allwinner,sun4i-axi-gates-clk")
-
-    DRAM					0
-
-  * AHB gates ("allwinner,sun4i-ahb-gates-clk")
-
-    USB0					0
-    EHCI0					1
-    OHCI0					2*
-    EHCI1					3
-    OHCI1					4*
-    SS						5
-    DMA						6
-    BIST					7
-    MMC0					8
-    MMC1					9
-    MMC2					10
-    MMC3					11
-    MS						12**
-    NAND					13
-    SDRAM					14
-
-    ACE						16
-    EMAC					17
-    TS						18
-
-    SPI0					20
-    SPI1					21
-    SPI2					22
-    SPI3					23
-    PATA					24
-    SATA					25**
-    GPS						26*
-
-    VE						32
-    TVD						33
-    TVE0					34
-    TVE1					35
-    LCD0					36
-    LCD1					37
-
-    CSI0					40
-    CSI1					41
-
-    HDMI					43
-    DE_BE0					44
-    DE_BE1					45
-    DE_FE1					46
-    DE_FE1					47
-
-    MP						50
-
-    MALI400					52
-
-  * APB0 gates ("allwinner,sun4i-apb0-gates-clk")
-
-    CODEC					0
-    SPDIF					1*
-    AC97					2
-    IIS						3
-
-    PIO						5
-    IR0						6
-    IR1						7
-
-    KEYPAD					10
-
-  * APB1 gates ("allwinner,sun4i-apb1-gates-clk")
-
-    I2C0					0
-    I2C1					1
-    I2C2					2
-
-    CAN						4
-    SCR						5
-    PS20					6
-    PS21					7
-
-    UART0					16
-    UART1					17
-    UART2					18
-    UART3					19
-    UART4					20
-    UART5					21
-    UART6					22
-    UART7					23
-
-Notation:
- [*]:  The datasheet didn't mention these, but they are present on AW code
- [**]: The datasheet had this marked as "NC" but they are used on AW code
diff --git a/Documentation/devicetree/bindings/clock/sunxi/sun5i-a10s-gates.txt b/Documentation/devicetree/bindings/clock/sunxi/sun5i-a10s-gates.txt
deleted file mode 100644
index d24279fe1429..000000000000
--- a/Documentation/devicetree/bindings/clock/sunxi/sun5i-a10s-gates.txt
+++ /dev/null
@@ -1,75 +0,0 @@
-Gate clock outputs
-------------------
-
-  * AXI gates ("allwinner,sun4i-axi-gates-clk")
-
-    DRAM					0
-
-  * AHB gates ("allwinner,sun5i-a10s-ahb-gates-clk")
-
-    USB0					0
-    EHCI0					1
-    OHCI0					2
-
-    SS						5
-    DMA						6
-    BIST					7
-    MMC0					8
-    MMC1					9
-    MMC2					10
-
-    NAND					13
-    SDRAM					14
-
-    EMAC					17
-    TS						18
-
-    SPI0					20
-    SPI1					21
-    SPI2					22
-
-    GPS						26
-
-    HSTIMER					28
-
-    VE						32
-
-    TVE						34
-
-    LCD						36
-
-    CSI						40
-
-    HDMI					43
-    DE_BE					44
-
-    DE_FE					46
-
-    IEP						51
-    MALI400					52
-
-  * APB0 gates ("allwinner,sun5i-a10s-apb0-gates-clk")
-
-    CODEC					0
-
-    IIS						3
-
-    PIO						5
-    IR						6
-
-    KEYPAD					10
-
-  * APB1 gates ("allwinner,sun5i-a10s-apb1-gates-clk")
-
-    I2C0					0
-    I2C1					1
-    I2C2					2
-
-    UART0					16
-    UART1					17
-    UART2					18
-    UART3					19
-
-Notation:
- [*]:  The datasheet didn't mention these, but they are present on AW code
- [**]: The datasheet had this marked as "NC" but they are used on AW code
diff --git a/Documentation/devicetree/bindings/clock/sunxi/sun5i-a13-gates.txt b/Documentation/devicetree/bindings/clock/sunxi/sun5i-a13-gates.txt
deleted file mode 100644
index 006b6dfc4703..000000000000
--- a/Documentation/devicetree/bindings/clock/sunxi/sun5i-a13-gates.txt
+++ /dev/null
@@ -1,58 +0,0 @@
-Gate clock outputs
-------------------
-
-  * AXI gates ("allwinner,sun4i-axi-gates-clk")
-
-    DRAM					0
-
-  * AHB gates ("allwinner,sun5i-a13-ahb-gates-clk")
-
-    USBOTG					0
-    EHCI					1
-    OHCI					2
-
-    SS						5
-    DMA						6
-    BIST					7
-    MMC0					8
-    MMC1					9
-    MMC2					10
-
-    NAND					13
-    SDRAM					14
-
-    SPI0					20
-    SPI1					21
-    SPI2					22
-
-    STIMER					28
-
-    VE						32
-
-    LCD						36
-
-    CSI						40
-
-    DE_BE					44
-
-    DE_FE					46
-
-    IEP						51
-    MALI400					52
-
-  * APB0 gates ("allwinner,sun5i-a13-apb0-gates-clk")
-
-    CODEC					0
-
-    PIO						5
-    IR						6
-
-  * APB1 gates ("allwinner,sun5i-a13-apb1-gates-clk")
-
-    I2C0					0
-    I2C1					1
-    I2C2					2
-
-    UART1					17
-
-    UART3					19
diff --git a/Documentation/devicetree/bindings/clock/sunxi/sun6i-a31-gates.txt b/Documentation/devicetree/bindings/clock/sunxi/sun6i-a31-gates.txt
deleted file mode 100644
index fe44932b5c6b..000000000000
--- a/Documentation/devicetree/bindings/clock/sunxi/sun6i-a31-gates.txt
+++ /dev/null
@@ -1,83 +0,0 @@
-Gate clock outputs
-------------------
-
-  * AHB1 gates ("allwinner,sun6i-a31-ahb1-gates-clk")
-
-    MIPI DSI					1
-
-    SS						5
-    DMA						6
-
-    MMC0					8
-    MMC1					9
-    MMC2					10
-    MMC3					11
-
-    NAND1					12
-    NAND0					13
-    SDRAM					14
-
-    GMAC					17
-    TS						18
-    HSTIMER					19
-    SPI0					20
-    SPI1					21
-    SPI2					22
-    SPI3					23
-    USB_OTG					24
-
-    EHCI0					26
-    EHCI1					27
-
-    OHCI0					29
-    OHCI1					30
-    OHCI2					31
-    VE						32
-
-    LCD0					36
-    LCD1					37
-
-    CSI						40
-
-    HDMI					43
-    DE_BE0					44
-    DE_BE1					45
-    DE_FE1					46
-    DE_FE1					47
-
-    MP						50
-
-    GPU						52
-
-    DEU0					55
-    DEU1					56
-    DRC0					57
-    DRC1					58
-
-  * APB1 gates ("allwinner,sun6i-a31-apb1-gates-clk")
-
-    CODEC					0
-
-    DIGITAL MIC					4
-    PIO						5
-
-    DAUDIO0					12
-    DAUDIO1					13
-
-  * APB2 gates ("allwinner,sun6i-a31-apb2-gates-clk")
-
-    I2C0					0
-    I2C1					1
-    I2C2					2
-    I2C3					3
-
-    UART0					16
-    UART1					17
-    UART2					18
-    UART3					19
-    UART4					20
-    UART5					21
-
-Notation:
- [*]:  The datasheet didn't mention these, but they are present on AW code
- [**]: The datasheet had this marked as "NC" but they are used on AW code
diff --git a/Documentation/devicetree/bindings/clock/sunxi/sun7i-a20-gates.txt b/Documentation/devicetree/bindings/clock/sunxi/sun7i-a20-gates.txt
deleted file mode 100644
index 357f4fdc02ef..000000000000
--- a/Documentation/devicetree/bindings/clock/sunxi/sun7i-a20-gates.txt
+++ /dev/null
@@ -1,98 +0,0 @@
-Gate clock outputs
-------------------
-
-  * AXI gates ("allwinner,sun4i-axi-gates-clk")
-
-    DRAM					0
-
-  * AHB gates ("allwinner,sun7i-a20-ahb-gates-clk")
-
-    USB0					0
-    EHCI0					1
-    OHCI0					2
-    EHCI1					3
-    OHCI1					4
-    SS						5
-    DMA						6
-    BIST					7
-    MMC0					8
-    MMC1					9
-    MMC2					10
-    MMC3					11
-    MS						12
-    NAND					13
-    SDRAM					14
-
-    ACE						16
-    EMAC					17
-    TS						18
-
-    SPI0					20
-    SPI1					21
-    SPI2					22
-    SPI3					23
-
-    SATA					25
-
-    HSTIMER					28
-
-    VE						32
-    TVD						33
-    TVE0					34
-    TVE1					35
-    LCD0					36
-    LCD1					37
-
-    CSI0					40
-    CSI1					41
-
-    HDMI1					42
-    HDMI0					43
-    DE_BE0					44
-    DE_BE1					45
-    DE_FE1					46
-    DE_FE1					47
-
-    GMAC					49
-    MP						50
-
-    MALI400					52
-
-  * APB0 gates ("allwinner,sun7i-a20-apb0-gates-clk")
-
-    CODEC					0
-    SPDIF					1
-    AC97					2
-    IIS0					3
-    IIS1					4
-    PIO						5
-    IR0						6
-    IR1						7
-    IIS2					8
-
-    KEYPAD					10
-
-  * APB1 gates ("allwinner,sun7i-a20-apb1-gates-clk")
-
-    I2C0					0
-    I2C1					1
-    I2C2					2
-    I2C3					3
-    CAN						4
-    SCR						5
-    PS20					6
-    PS21					7
-
-    I2C4					15
-    UART0					16
-    UART1					17
-    UART2					18
-    UART3					19
-    UART4					20
-    UART5					21
-    UART6					22
-    UART7					23
-
-Notation:
- [*]:  The datasheet didn't mention these, but they are present on AW code
- [**]: The datasheet had this marked as "NC" but they are used on AW code
-- 
cgit 


From ff52b8fe2b8208432f92c59bea20a4a6128923ff Mon Sep 17 00:00:00 2001
From: Valentina Manea <valentina.manea.m@gmail.com>
Date: Tue, 8 Oct 2013 13:21:26 +0300
Subject: staging: gdm724x: Fix sparse warnings regarding static
 functions/variables

This fixes sparse warnings for functions and variables, e.g.:
* drivers/staging/gdm724x/gdm_mux.c:29:25: warning: symbol
'mux_rx_wq' was not declared. Should it be static?

Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Reviewed-by: Zach Brown <zab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/gdm724x/gdm_lte.c | 6 +++---
 drivers/staging/gdm724x/gdm_mux.c | 4 ++--
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/gdm724x/gdm_lte.c b/drivers/staging/gdm724x/gdm_lte.c
index bc0d510fb0af..c57a6ba5d010 100644
--- a/drivers/staging/gdm724x/gdm_lte.c
+++ b/drivers/staging/gdm724x/gdm_lte.c
@@ -110,7 +110,7 @@ static int gdm_lte_rx(struct sk_buff *skb, struct nic *nic, int nic_type)
 	return 0;
 }
 
-int gdm_lte_emulate_arp(struct sk_buff *skb_in, u32 nic_type)
+static int gdm_lte_emulate_arp(struct sk_buff *skb_in, u32 nic_type)
 {
 	struct nic *nic = netdev_priv(skb_in->dev);
 	struct sk_buff *skb_out;
@@ -186,7 +186,7 @@ int gdm_lte_emulate_arp(struct sk_buff *skb_in, u32 nic_type)
 	return 0;
 }
 
-int icmp6_checksum(struct ipv6hdr *ipv6, u16 *ptr, int len)
+static int icmp6_checksum(struct ipv6hdr *ipv6, u16 *ptr, int len)
 {
 	unsigned short *w = ptr;
 	int sum = 0;
@@ -226,7 +226,7 @@ int icmp6_checksum(struct ipv6hdr *ipv6, u16 *ptr, int len)
 	return sum;
 }
 
-int gdm_lte_emulate_ndp(struct sk_buff *skb_in, u32 nic_type)
+static int gdm_lte_emulate_ndp(struct sk_buff *skb_in, u32 nic_type)
 {
 	struct nic *nic = netdev_priv(skb_in->dev);
 	struct sk_buff *skb_out;
diff --git a/drivers/staging/gdm724x/gdm_mux.c b/drivers/staging/gdm724x/gdm_mux.c
index 5b1ef4000d0f..d63517ce2a33 100644
--- a/drivers/staging/gdm724x/gdm_mux.c
+++ b/drivers/staging/gdm724x/gdm_mux.c
@@ -26,7 +26,7 @@
 
 #include "gdm_mux.h"
 
-struct workqueue_struct *mux_rx_wq;
+static struct workqueue_struct *mux_rx_wq;
 
 static u16 packet_type[TTY_MAX_COUNT] = {0xF011, 0xF010};
 
@@ -51,7 +51,7 @@ static const struct usb_device_id id_table[] = {
 
 MODULE_DEVICE_TABLE(usb, id_table);
 
-int packet_type_to_index(u16 packetType)
+static int packet_type_to_index(u16 packetType)
 {
 	int i;
 
-- 
cgit 


From 208b8671398a48b585a799ba479dc5e8864b3ff6 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Thu, 10 Oct 2013 15:08:32 +0300
Subject: Staging: gdm724x: fix line over 80 characters in gdm_tty.c

Fix checkpatch.pl issues wtih line over 80 characters
in gdm_tty.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/gdm724x/gdm_tty.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/gdm724x/gdm_tty.c b/drivers/staging/gdm724x/gdm_tty.c
index 0247a2055e8d..c0f7cd75116b 100644
--- a/drivers/staging/gdm724x/gdm_tty.c
+++ b/drivers/staging/gdm724x/gdm_tty.c
@@ -171,7 +171,8 @@ static void gdm_tty_send_complete(void *arg)
 	tty_port_tty_wakeup(&gdm->port);
 }
 
-static int gdm_tty_write(struct tty_struct *tty, const unsigned char *buf, int len)
+static int gdm_tty_write(struct tty_struct *tty, const unsigned char *buf,
+			 int len)
 {
 	struct gdm *gdm = tty->driver_data;
 	int remain = len;
@@ -185,7 +186,8 @@ static int gdm_tty_write(struct tty_struct *tty, const unsigned char *buf, int l
 		return 0;
 
 	while (1) {
-		sending_len = remain > MUX_TX_MAX_SIZE ? MUX_TX_MAX_SIZE : remain;
+		sending_len = remain > MUX_TX_MAX_SIZE ? MUX_TX_MAX_SIZE :
+							 remain;
 		gdm_tty_send(gdm,
 			     (void *)(buf+sent_len),
 			     sending_len,
@@ -247,7 +249,8 @@ int register_lte_tty_device(struct tty_dev *tty_dev, struct device *device)
 		gdm->minor = j;
 		gdm->tty_dev = tty_dev;
 
-		tty_port_register_device(&gdm->port, gdm_driver[i], gdm->minor, device);
+		tty_port_register_device(&gdm->port, gdm_driver[i],
+					 gdm->minor, device);
 	}
 
 	for (i = 0; i < MAX_ISSUE_NUM; i++)
@@ -309,7 +312,8 @@ int register_lte_tty_driver(void)
 		tty_driver->major = GDM_TTY_MAJOR;
 		tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
 		tty_driver->subtype = SERIAL_TYPE_NORMAL;
-		tty_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
+		tty_driver->flags = TTY_DRIVER_REAL_RAW |
+					TTY_DRIVER_DYNAMIC_DEV;
 		tty_driver->init_termios = tty_std_termios;
 		tty_driver->init_termios.c_cflag = B9600 | CS8 | HUPCL | CLOCAL;
 		tty_driver->init_termios.c_lflag = ISIG | ICANON | IEXTEN;
-- 
cgit 


From c527ba95ef9d4f03e0bf5b8079dbc7d59f56eada Mon Sep 17 00:00:00 2001
From: Archana kumari <archanakumari959@gmail.com>
Date: Wed, 9 Oct 2013 21:39:29 +0530
Subject: Staging:cxt1e1: Fixes whitespace around commas in sbew_ioc.h

Fixes whitepace around commas. Detected via checkpatch.pl.

ERROR: space required after that ','

Signed-off-by: Archana kumari <archanakumari959@gmail.com>
Reviewed-by: Zach Brown <zab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/cxt1e1/sbew_ioc.h | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/cxt1e1/sbew_ioc.h b/drivers/staging/cxt1e1/sbew_ioc.h
index ce9b15c71894..e1e5bfc9ad37 100644
--- a/drivers/staging/cxt1e1/sbew_ioc.h
+++ b/drivers/staging/cxt1e1/sbew_ioc.h
@@ -39,21 +39,21 @@
  */
 
 #define SBE_IOC_LOGLEVEL       _IOW(SBE_IOC_MAGIC, 0x00, int)
-#define SBE_IOC_CHAN_NEW       _IOW(SBE_IOC_MAGIC, 0x01,int)    /* unused */
-#define SBE_IOC_CHAN_UP        _IOW(SBE_IOC_MAGIC, 0x02,int)    /* unused */
-#define SBE_IOC_CHAN_DOWN      _IOW(SBE_IOC_MAGIC, 0x03,int)    /* unused */
-#define SBE_IOC_CHAN_GET       _IOWR(SBE_IOC_MAGIC,0x04, struct sbecom_chan_param)
+#define SBE_IOC_CHAN_NEW       _IOW(SBE_IOC_MAGIC, 0x01, int)    /* unused */
+#define SBE_IOC_CHAN_UP        _IOW(SBE_IOC_MAGIC, 0x02, int)    /* unused */
+#define SBE_IOC_CHAN_DOWN      _IOW(SBE_IOC_MAGIC, 0x03, int)    /* unused */
+#define SBE_IOC_CHAN_GET       _IOWR(SBE_IOC_MAGIC, 0x04, struct sbecom_chan_param)
 #define SBE_IOC_CHAN_SET       _IOW(SBE_IOC_MAGIC, 0x05, struct sbecom_chan_param)
-#define SBE_IOC_CHAN_GET_STAT  _IOWR(SBE_IOC_MAGIC,0x06, struct sbecom_chan_stats)
+#define SBE_IOC_CHAN_GET_STAT  _IOWR(SBE_IOC_MAGIC, 0x06, struct sbecom_chan_stats)
 #define SBE_IOC_CHAN_DEL_STAT  _IOW(SBE_IOC_MAGIC, 0x07, int)
 #define SBE_IOC_PORTS_ENABLE   _IOW(SBE_IOC_MAGIC, 0x0A, int)
-#define SBE_IOC_PORT_GET       _IOWR(SBE_IOC_MAGIC,0x0C, struct sbecom_port_param)
+#define SBE_IOC_PORT_GET       _IOWR(SBE_IOC_MAGIC, 0x0C, struct sbecom_port_param)
 #define SBE_IOC_PORT_SET       _IOW(SBE_IOC_MAGIC, 0x0D, struct sbecom_port_param)
-#define SBE_IOC_READ_VEC       _IOWR(SBE_IOC_MAGIC,0x10, struct sbecom_wrt_vec)
-#define SBE_IOC_WRITE_VEC      _IOWR(SBE_IOC_MAGIC,0x11, struct sbecom_wrt_vec)
+#define SBE_IOC_READ_VEC       _IOWR(SBE_IOC_MAGIC, 0x10, struct sbecom_wrt_vec)
+#define SBE_IOC_WRITE_VEC      _IOWR(SBE_IOC_MAGIC, 0x11, struct sbecom_wrt_vec)
 #define SBE_IOC_GET_SN         _IOR(SBE_IOC_MAGIC, 0x12, u_int32_t)
 #define SBE_IOC_RESET_DEV      _IOW(SBE_IOC_MAGIC, 0x13, int)
-#define SBE_IOC_FRAMER_GET     _IOWR(SBE_IOC_MAGIC,0x14, struct sbecom_framer_param)
+#define SBE_IOC_FRAMER_GET     _IOWR(SBE_IOC_MAGIC, 0x14, struct sbecom_framer_param)
 #define SBE_IOC_FRAMER_SET     _IOW(SBE_IOC_MAGIC, 0x15, struct sbecom_framer_param)
 #define SBE_IOC_CARD_GET       _IOR(SBE_IOC_MAGIC, 0x20, struct sbecom_card_param)
 #define SBE_IOC_CARD_SET       _IOW(SBE_IOC_MAGIC, 0x21, struct sbecom_card_param)
@@ -61,13 +61,13 @@
 #define SBE_IOC_CARD_DEL_STAT  _IO(SBE_IOC_MAGIC,  0x23)
 #define SBE_IOC_CARD_CHAN_STAT _IOR(SBE_IOC_MAGIC, 0x24, struct sbecom_chan_stats)
 #define SBE_IOC_CARD_BLINK     _IOW(SBE_IOC_MAGIC, 0x30, int)
-#define SBE_IOC_DRVINFO_GET    _IOWR(SBE_IOC_MAGIC,0x31, struct sbe_drv_info)
+#define SBE_IOC_DRVINFO_GET    _IOWR(SBE_IOC_MAGIC, 0x31, struct sbe_drv_info)
 #define SBE_IOC_BRDINFO_GET    _IOR(SBE_IOC_MAGIC, 0x32, struct sbe_brd_info)
-#define SBE_IOC_IID_GET        _IOWR(SBE_IOC_MAGIC,0x33, struct sbe_iid_info)
+#define SBE_IOC_IID_GET        _IOWR(SBE_IOC_MAGIC, 0x33, struct sbe_iid_info)
 #define SBE_IOC_BRDADDR_GET    _IOWR(SBE_IOC_MAGIC, 0x34, struct sbe_brd_addr)
 
 #ifdef NOT_YET_COMMON
-#define SBE_IOC_TSIOC_GET      _IOWR(SBE_IOC_MAGIC,0x16, struct wanc1t3_ts_param)
+#define SBE_IOC_TSIOC_GET      _IOWR(SBE_IOC_MAGIC, 0x16, struct wanc1t3_ts_param)
 #define SBE_IOC_TSIOC_SET      _IOW(SBE_IOC_MAGIC, 0x17, struct wanc1t3_ts_param)
 #endif
 
-- 
cgit 


From 633a34bda5294401c63cc7bb9973a631202e6bcd Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Tue, 8 Oct 2013 19:47:32 +0530
Subject: Staging: btmtk_usb: Fix line length exceeding 80 characters

This patch fixes the following checkpatch.pl warning in btmtk_usb.c
WARNING: line over 80 characters in the file

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/btmtk_usb/btmtk_usb.c | 291 +++++++++++++++++++---------------
 1 file changed, 161 insertions(+), 130 deletions(-)

diff --git a/drivers/staging/btmtk_usb/btmtk_usb.c b/drivers/staging/btmtk_usb/btmtk_usb.c
index 0e783e8d71ca..2da846661e65 100644
--- a/drivers/staging/btmtk_usb/btmtk_usb.c
+++ b/drivers/staging/btmtk_usb/btmtk_usb.c
@@ -16,7 +16,8 @@
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *  or on the worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
+ *  or on the worldwide web at
+ *  http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
  *
  */
 
@@ -72,8 +73,9 @@ static int btmtk_usb_reset(struct usb_device *udev)
 
 	BT_DBG("%s\n", __func__);
 
-	ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x01, DEVICE_VENDOR_REQUEST_OUT,
-						  0x01, 0x00, NULL, 0x00, CONTROL_TIMEOUT_JIFFIES);
+	ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x01,
+			DEVICE_VENDOR_REQUEST_OUT, 0x01, 0x00,
+			NULL, 0x00, CONTROL_TIMEOUT_JIFFIES);
 
 	if (ret < 0) {
 		BT_ERR("%s error(%d)\n", __func__, ret);
@@ -92,13 +94,14 @@ static int btmtk_usb_io_read32(struct btmtk_usb_data *data, u32 reg, u32 *val)
 	struct usb_device *udev = data->udev;
 	int ret;
 
-	ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), request, DEVICE_VENDOR_REQUEST_IN,
-						  0x0, reg, data->io_buf, 4,
-						  CONTROL_TIMEOUT_JIFFIES);
+	ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), request,
+			DEVICE_VENDOR_REQUEST_IN, 0x0, reg, data->io_buf,
+			4, CONTROL_TIMEOUT_JIFFIES);
 
 	if (ret < 0) {
 		*val = 0xffffffff;
-		BT_ERR("%s error(%d), reg=%x, value=%x\n", __func__, ret, reg, *val);
+		BT_ERR("%s error(%d), reg=%x, value=%x\n",
+				__func__, ret, reg, *val);
 		return ret;
 	}
 
@@ -122,12 +125,13 @@ static int btmtk_usb_io_write32(struct btmtk_usb_data *data, u32 reg, u32 val)
 	index = (u16)reg;
 	value = val & 0x0000ffff;
 
-	ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), request, DEVICE_VENDOR_REQUEST_OUT,
-						  value, index, NULL, 0,
-						  CONTROL_TIMEOUT_JIFFIES);
+	ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), request,
+			DEVICE_VENDOR_REQUEST_OUT, value, index,
+			NULL, 0, CONTROL_TIMEOUT_JIFFIES);
 
 	if (ret < 0) {
-		BT_ERR("%s error(%d), reg=%x, value=%x\n", __func__, ret, reg, val);
+		BT_ERR("%s error(%d), reg=%x, value=%x\n",
+				__func__, ret, reg, val);
 		return ret;
 	}
 
@@ -139,7 +143,8 @@ static int btmtk_usb_io_write32(struct btmtk_usb_data *data, u32 reg, u32 val)
 				value, index, NULL, 0, CONTROL_TIMEOUT_JIFFIES);
 
 	if (ret < 0) {
-		BT_ERR("%s error(%d), reg=%x, value=%x\n", __func__, ret, reg, val);
+		BT_ERR("%s error(%d), reg=%x, value=%x\n",
+				__func__, ret, reg, val);
 		return ret;
 	}
 
@@ -186,13 +191,15 @@ static void btmtk_usb_cap_init(struct btmtk_usb_data *data)
 		ret = request_firmware(&firmware, MT7650_FIRMWARE, &udev->dev);
 		if (ret < 0) {
 			if (ret == -ENOENT) {
-				BT_ERR("Firmware file \"%s\" not found \n", MT7650_FIRMWARE);
+				BT_ERR("Firmware file \"%s\" not found \n",
+						MT7650_FIRMWARE);
 			} else {
 				BT_ERR("Firmware file \"%s\" request failed (err=%d) \n",
 					MT7650_FIRMWARE, ret);
 			}
 		} else {
-			BT_DBG("Firmware file \"%s\" Found \n", MT7650_FIRMWARE);
+			BT_DBG("Firmware file \"%s\" Found \n",
+					MT7650_FIRMWARE);
 			/* load firmware here */
 			data->firmware = firmware;
 			btmtk_usb_load_fw(data);
@@ -205,7 +212,8 @@ static void btmtk_usb_cap_init(struct btmtk_usb_data *data)
 		ret = request_firmware(&firmware, MT7662_FIRMWARE, &udev->dev);
 		if (ret < 0) {
 			if (ret == -ENOENT) {
-				BT_ERR("Firmware file \"%s\" not found\n", MT7662_FIRMWARE);
+				BT_ERR("Firmware file \"%s\" not found\n",
+						MT7662_FIRMWARE);
 			} else {
 				BT_ERR("Firmware file \"%s\" request failed (err=%d)\n",
 					MT7662_FIRMWARE, ret);
@@ -258,9 +266,9 @@ static int btmtk_usb_chk_crc(struct btmtk_usb_data *data, u32 checksum_len)
 	memmove(data->io_buf, &data->rom_patch_offset, 4);
 	memmove(&data->io_buf[4], &checksum_len, 4);
 
-	ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x1, DEVICE_VENDOR_REQUEST_IN,
-						  0x20, 0x00, data->io_buf, 8,
-						  CONTROL_TIMEOUT_JIFFIES);
+	ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x1,
+			DEVICE_VENDOR_REQUEST_IN, 0x20, 0x00, data->io_buf,
+			8, CONTROL_TIMEOUT_JIFFIES);
 
 	if (ret < 0) {
 		BT_ERR("%s error(%d)\n", __func__, ret);
@@ -318,8 +326,8 @@ static int btmtk_usb_reset_wmt(struct btmtk_usb_data *data)
 	BT_DBG("%s\n", __func__);
 
 	ret = usb_control_msg(data->udev, usb_sndctrlpipe(data->udev, 0), 0x01,
-				DEVICE_CLASS_REQUEST_OUT, 0x12, 0x00, data->io_buf,
-				8, CONTROL_TIMEOUT_JIFFIES);
+				DEVICE_CLASS_REQUEST_OUT, 0x12, 0x00,
+				data->io_buf, 8, CONTROL_TIMEOUT_JIFFIES);
 
 	if (ret)
 		BT_ERR("%s:(%d)\n", __func__, ret);
@@ -350,7 +358,8 @@ static int btmtk_usb_load_rom_patch(struct btmtk_usb_data *data)
 	unsigned char phase;
 	void *buf;
 	char *pos;
-	unsigned int pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
+	unsigned int pipe;
+	pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
 
 	if (!data->firmware) {
 		BT_ERR("%s:please assign a rom patch\n", __func__);
@@ -391,7 +400,8 @@ load_patch_protect:
 		goto error0;
 	}
 
-	buf = usb_alloc_coherent(data->udev, UPLOAD_PATCH_UNIT, GFP_ATOMIC, &data_dma);
+	buf = usb_alloc_coherent(data->udev, UPLOAD_PATCH_UNIT,
+			GFP_ATOMIC, &data_dma);
 
 	if (!buf) {
 		ret = -ENOMEM;
@@ -409,78 +419,83 @@ load_patch_protect:
 	/* loading rom patch */
 	while (1) {
 		s32 sent_len_max = UPLOAD_PATCH_UNIT - PATCH_HEADER_SIZE;
-		sent_len = (patch_len - cur_len) >= sent_len_max ? sent_len_max : (patch_len - cur_len);
+		sent_len = (patch_len - cur_len) >= sent_len_max ?
+			sent_len_max : (patch_len - cur_len);
 
 		BT_DBG("patch_len = %d\n", patch_len);
 		BT_DBG("cur_len = %d\n", cur_len);
 		BT_DBG("sent_len = %d\n", sent_len);
 
-		if (sent_len > 0) {
-			if (first_block == 1) {
-				if (sent_len < sent_len_max)
-					phase = PATCH_PHASE3;
-				else
-					phase = PATCH_PHASE1;
-				first_block = 0;
-			} else if (sent_len == sent_len_max) {
-				phase = PATCH_PHASE2;
-			} else {
+		if (sent_len <= 0)
+			break;
+
+		if (first_block == 1) {
+			if (sent_len < sent_len_max)
 				phase = PATCH_PHASE3;
-			}
+			else
+				phase = PATCH_PHASE1;
+			first_block = 0;
+		} else if (sent_len == sent_len_max) {
+			phase = PATCH_PHASE2;
+		} else {
+			phase = PATCH_PHASE3;
+		}
 
-			/* prepare HCI header */
-			pos[0] = 0x6F;
-			pos[1] = 0xFC;
-			pos[2] = (sent_len + 5) & 0xFF;
-			pos[3] = ((sent_len + 5) >> 8) & 0xFF;
+		/* prepare HCI header */
+		pos[0] = 0x6F;
+		pos[1] = 0xFC;
+		pos[2] = (sent_len + 5) & 0xFF;
+		pos[3] = ((sent_len + 5) >> 8) & 0xFF;
 
-			/* prepare WMT header */
-			pos[4] = 0x01;
-			pos[5] = 0x01;
-			pos[6] = (sent_len + 1) & 0xFF;
-			pos[7] = ((sent_len + 1) >> 8) & 0xFF;
+		/* prepare WMT header */
+		pos[4] = 0x01;
+		pos[5] = 0x01;
+		pos[6] = (sent_len + 1) & 0xFF;
+		pos[7] = ((sent_len + 1) >> 8) & 0xFF;
 
-			pos[8] = phase;
+		pos[8] = phase;
 
-			memcpy(&pos[9], data->firmware->data + PATCH_INFO_SIZE + cur_len, sent_len);
+		memcpy(&pos[9],
+			data->firmware->data + PATCH_INFO_SIZE + cur_len,
+			sent_len);
 
-			BT_DBG("sent_len + PATCH_HEADER_SIZE = %d, phase = %d\n",
-					sent_len + PATCH_HEADER_SIZE, phase);
+		BT_DBG("sent_len + PATCH_HEADER_SIZE = %d, phase = %d\n",
+				sent_len + PATCH_HEADER_SIZE, phase);
 
-			usb_fill_bulk_urb(urb,
-					data->udev,
-					pipe,
-					buf,
-					sent_len + PATCH_HEADER_SIZE,
-					load_rom_patch_complete,
-					&sent_to_mcu_done);
+		usb_fill_bulk_urb(urb,
+				data->udev,
+				pipe,
+				buf,
+				sent_len + PATCH_HEADER_SIZE,
+				load_rom_patch_complete,
+				&sent_to_mcu_done);
 
-			urb->transfer_dma = data_dma;
-			urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+		urb->transfer_dma = data_dma;
+		urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 
-			ret = usb_submit_urb(urb, GFP_ATOMIC);
+		ret = usb_submit_urb(urb, GFP_ATOMIC);
 
-			if (ret)
-				goto error2;
+		if (ret)
+			goto error2;
 
-			if (!wait_for_completion_timeout(&sent_to_mcu_done, msecs_to_jiffies(1000))) {
-				usb_kill_urb(urb);
-				BT_ERR("upload rom_patch timeout\n");
-				goto error2;
-			}
+		if (!wait_for_completion_timeout(&sent_to_mcu_done,
+					msecs_to_jiffies(1000))) {
+			usb_kill_urb(urb);
+			BT_ERR("upload rom_patch timeout\n");
+			goto error2;
+		}
 
-			BT_DBG(".");
+		BT_DBG(".");
 
-			mdelay(200);
+		mdelay(200);
 
-			cur_len += sent_len;
+		cur_len += sent_len;
 
-		} else {
-			break;
-		}
 	}
 
-	total_checksum = checksume16((u8 *)data->firmware->data + PATCH_INFO_SIZE, patch_len);
+	total_checksum = checksume16(
+			(u8 *)data->firmware->data + PATCH_INFO_SIZE,
+			patch_len);
 
 	BT_DBG("Send checksum req..\n");
 
@@ -520,8 +535,8 @@ static int load_fw_iv(struct btmtk_usb_data *data)
 	memmove(buf, data->firmware->data + 32, 64);
 
 	ret = usb_control_msg(udev, usb_sndctrlpipe(udev, 0), 0x01,
-						  DEVICE_VENDOR_REQUEST_OUT, 0x12, 0x0, buf, 64,
-						  CONTROL_TIMEOUT_JIFFIES);
+			DEVICE_VENDOR_REQUEST_OUT, 0x12, 0x0, buf, 64,
+			CONTROL_TIMEOUT_JIFFIES);
 
 	if (ret < 0) {
 		BT_ERR("%s error(%d) step4\n", __func__, ret);
@@ -559,7 +574,8 @@ static int btmtk_usb_load_fw(struct btmtk_usb_data *data)
 	dma_addr_t data_dma;
 	int ret = 0, sent_len;
 	struct completion sent_to_mcu_done;
-	unsigned int pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
+	unsigned int pipe;
+	pipe = usb_sndbulkpipe(data->udev, data->bulk_tx_ep->bEndpointAddress);
 
 	if (!data->firmware) {
 		BT_ERR("%s:please assign a fw\n", __func__);
@@ -598,9 +614,11 @@ loadfw_protect:
 			| (*(data->firmware->data + 5) << 8)
 			| (*(data->firmware->data + 4));
 
-	fw_ver = (*(data->firmware->data + 11) << 8) | (*(data->firmware->data + 10));
+	fw_ver = (*(data->firmware->data + 11) << 8) |
+	      (*(data->firmware->data + 10));
 
-	build_ver = (*(data->firmware->data + 9) << 8) | (*(data->firmware->data + 8));
+	build_ver = (*(data->firmware->data + 9) << 8) |
+		 (*(data->firmware->data + 8));
 
 	BT_DBG("fw version:%d.%d.%02d ",
 			(fw_ver & 0xf000) >> 8,
@@ -657,7 +675,8 @@ loadfw_protect:
 
 	/* Loading ILM */
 	while (1) {
-		sent_len = (ilm_len - cur_len) >= 14336 ? 14336 : (ilm_len - cur_len);
+		sent_len = (ilm_len - cur_len) >= 14336 ? 14336 :
+			(ilm_len - cur_len);
 
 		if (sent_len > 0) {
 			packet_header &= ~(0xffffffff);
@@ -665,7 +684,8 @@ loadfw_protect:
 			packet_header = cpu_to_le32(packet_header);
 
 			memmove(buf, &packet_header, 4);
-			memmove(buf + 4, data->firmware->data + 32 + cur_len, sent_len);
+			memmove(buf + 4, data->firmware->data + 32 + cur_len,
+					sent_len);
 
 			/* U2M_PDMA descriptor */
 			btmtk_usb_io_write32(data, 0x230, cur_len);
@@ -693,7 +713,8 @@ loadfw_protect:
 			if (ret)
 				goto error3;
 
-			if (!wait_for_completion_timeout(&sent_to_mcu_done, msecs_to_jiffies(1000))) {
+			if (!wait_for_completion_timeout(&sent_to_mcu_done,
+						msecs_to_jiffies(1000))) {
 				usb_kill_urb(urb);
 				BT_ERR("upload ilm fw timeout\n");
 				goto error3;
@@ -714,58 +735,61 @@ loadfw_protect:
 
 	/* Loading DLM */
 	while (1) {
-		sent_len = (dlm_len - cur_len) >= 14336 ? 14336 : (dlm_len - cur_len);
+		sent_len = (dlm_len - cur_len) >= 14336 ? 14336 :
+			(dlm_len - cur_len);
 
-		if (sent_len > 0) {
-			packet_header &= ~(0xffffffff);
-			packet_header |= (sent_len << 16);
-			packet_header = cpu_to_le32(packet_header);
+		if (sent_len <= 0)
+			break;
 
-			memmove(buf, &packet_header, 4);
-			memmove(buf + 4, data->firmware->data + 32 + ilm_len + cur_len, sent_len);
+		packet_header &= ~(0xffffffff);
+		packet_header |= (sent_len << 16);
+		packet_header = cpu_to_le32(packet_header);
 
-			/* U2M_PDMA descriptor */
-			btmtk_usb_io_write32(data, 0x230, 0x80000 + cur_len);
+		memmove(buf, &packet_header, 4);
+		memmove(buf + 4,
+			data->firmware->data + 32 + ilm_len + cur_len,
+			sent_len);
 
-			while ((sent_len % 4) != 0) {
-				BT_DBG("sent_len is not divided by 4\n");
-				sent_len++;
-			}
+		/* U2M_PDMA descriptor */
+		btmtk_usb_io_write32(data, 0x230, 0x80000 + cur_len);
 
-			/* U2M_PDMA length */
-			btmtk_usb_io_write32(data, 0x234, sent_len << 16);
+		while ((sent_len % 4) != 0) {
+			BT_DBG("sent_len is not divided by 4\n");
+			sent_len++;
+		}
 
-			usb_fill_bulk_urb(urb,
-					udev,
-					pipe,
-					buf,
-					sent_len + 4,
-					load_fw_complete,
-					&sent_to_mcu_done);
+		/* U2M_PDMA length */
+		btmtk_usb_io_write32(data, 0x234, sent_len << 16);
 
-			urb->transfer_dma = data_dma;
-			urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
+		usb_fill_bulk_urb(urb,
+				udev,
+				pipe,
+				buf,
+				sent_len + 4,
+				load_fw_complete,
+				&sent_to_mcu_done);
 
-			ret = usb_submit_urb(urb, GFP_ATOMIC);
+		urb->transfer_dma = data_dma;
+		urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 
-			if (ret)
-				goto error3;
+		ret = usb_submit_urb(urb, GFP_ATOMIC);
 
-			if (!wait_for_completion_timeout(&sent_to_mcu_done, msecs_to_jiffies(1000))) {
-				usb_kill_urb(urb);
-				BT_ERR("upload dlm fw timeout\n");
-				goto error3;
-			}
+		if (ret)
+			goto error3;
 
-			BT_DBG(".");
+		if (!wait_for_completion_timeout(&sent_to_mcu_done,
+					msecs_to_jiffies(1000))) {
+			usb_kill_urb(urb);
+			BT_ERR("upload dlm fw timeout\n");
+			goto error3;
+		}
 
-			mdelay(500);
+		BT_DBG(".");
 
-			cur_len += sent_len;
+		mdelay(500);
+
+		cur_len += sent_len;
 
-		} else {
-			break;
-		}
 	}
 
 	/* upload 64bytes interrupt vector */
@@ -978,8 +1002,8 @@ static int btmtk_usb_submit_bulk_in_urb(struct hci_dev *hdev, gfp_t mem_flags)
 
 	pipe = usb_rcvbulkpipe(data->udev, data->bulk_rx_ep->bEndpointAddress);
 
-	usb_fill_bulk_urb(urb, data->udev, pipe,
-					buf, size, btmtk_usb_bulk_in_complete, hdev);
+	usb_fill_bulk_urb(urb, data->udev, pipe, buf, size,
+			btmtk_usb_bulk_in_complete, hdev);
 
 	urb->transfer_flags |= URB_FREE_BUFFER;
 
@@ -1015,7 +1039,8 @@ static void btmtk_usb_isoc_in_complete(struct urb *urb)
 	if (urb->status == 0) {
 		for (i = 0; i < urb->number_of_packets; i++) {
 			unsigned int offset = urb->iso_frame_desc[i].offset;
-			unsigned int length = urb->iso_frame_desc[i].actual_length;
+			unsigned int length;
+			length = urb->iso_frame_desc[i].actual_length;
 
 			if (urb->iso_frame_desc[i].status)
 				continue;
@@ -1096,8 +1121,9 @@ static int btmtk_usb_submit_isoc_in_urb(struct hci_dev *hdev, gfp_t mem_flags)
 
 	pipe = usb_rcvisocpipe(data->udev, data->isoc_rx_ep->bEndpointAddress);
 
-	usb_fill_int_urb(urb, data->udev, pipe, buf, size, btmtk_usb_isoc_in_complete,
-				hdev, data->isoc_rx_ep->bInterval);
+	usb_fill_int_urb(urb, data->udev, pipe, buf, size,
+			btmtk_usb_isoc_in_complete, hdev,
+			data->isoc_rx_ep->bInterval);
 
 	urb->transfer_flags  = URB_FREE_BUFFER | URB_ISO_ASAP;
 
@@ -1306,7 +1332,8 @@ static int btmtk_usb_send_frame(struct sk_buff *skb)
 		}
 
 		usb_fill_control_urb(urb, data->udev, pipe, (void *) dr,
-				skb->data, skb->len, btmtk_usb_tx_complete, skb);
+				skb->data, skb->len,
+				btmtk_usb_tx_complete, skb);
 
 		hdev->stat.cmd_tx++;
 		break;
@@ -1322,8 +1349,8 @@ static int btmtk_usb_send_frame(struct sk_buff *skb)
 		pipe = usb_sndbulkpipe(data->udev,
 					data->bulk_tx_ep->bEndpointAddress);
 
-		usb_fill_bulk_urb(urb, data->udev, pipe,
-				skb->data, skb->len, btmtk_usb_tx_complete, skb);
+		usb_fill_bulk_urb(urb, data->udev, pipe, skb->data,
+				skb->len, btmtk_usb_tx_complete, skb);
 
 		hdev->stat.acl_tx++;
 		BT_DBG("HCI_ACLDATA_PKT:\n");
@@ -1442,7 +1469,8 @@ static inline int __set_isoc_interface(struct hci_dev *hdev, int altsetting)
 
 static void btmtk_usb_work(struct work_struct *work)
 {
-	struct btmtk_usb_data *data = container_of(work, struct btmtk_usb_data, work);
+	struct btmtk_usb_data *data = container_of(work, struct btmtk_usb_data,
+			work);
 	struct hci_dev *hdev = data->hdev;
 	int new_alts;
 	int err;
@@ -1451,7 +1479,8 @@ static void btmtk_usb_work(struct work_struct *work)
 
 	if (hdev->conn_hash.sco_num > 0) {
 		if (!test_bit(BTUSB_DID_ISO_RESUME, &data->flags)) {
-			err = usb_autopm_get_interface(data->isoc ? data->isoc : data->intf);
+			err = usb_autopm_get_interface(data->isoc ?
+					data->isoc : data->intf);
 			if (err < 0) {
 				clear_bit(BTUSB_ISOC_RUNNING, &data->flags);
 				usb_kill_anchored_urbs(&data->isoc_anchor);
@@ -1489,13 +1518,15 @@ static void btmtk_usb_work(struct work_struct *work)
 		__set_isoc_interface(hdev, 0);
 
 		if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
-			 usb_autopm_put_interface(data->isoc ? data->isoc : data->intf);
+			 usb_autopm_put_interface(data->isoc ?
+					 data->isoc : data->intf);
 	}
 }
 
 static void btmtk_usb_waker(struct work_struct *work)
 {
-	struct btmtk_usb_data *data = container_of(work, struct btmtk_usb_data, waker);
+	struct btmtk_usb_data *data = container_of(work, struct btmtk_usb_data,
+			waker);
 	int err;
 
 	err = usb_autopm_get_interface(data->intf);
-- 
cgit 


From c27bd078d1963c611400dbbd6fb5d278f818960d Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Tue, 8 Oct 2013 19:54:37 +0530
Subject: Staging: btmtk_usb: Fix incorrect brace placement

The patch fixes the following checkpatch.pl warning in btmtk_usb.c
WARNING: braces {} are not necessary for single statement blocks

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Zach Brown <zab@redhat.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/btmtk_usb/btmtk_usb.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/btmtk_usb/btmtk_usb.c b/drivers/staging/btmtk_usb/btmtk_usb.c
index 2da846661e65..d8ede3a5d5c2 100644
--- a/drivers/staging/btmtk_usb/btmtk_usb.c
+++ b/drivers/staging/btmtk_usb/btmtk_usb.c
@@ -249,9 +249,8 @@ static u16 checksume16(u8 *pData, int len)
 	if (len)
 		sum += *((u8 *)pData);
 
-	while (sum >> 16) {
+	while (sum >> 16)
 		sum = (sum & 0xFFFF) + (sum >> 16);
-	}
 
 	return ~sum;
 }
@@ -270,9 +269,8 @@ static int btmtk_usb_chk_crc(struct btmtk_usb_data *data, u32 checksum_len)
 			DEVICE_VENDOR_REQUEST_IN, 0x20, 0x00, data->io_buf,
 			8, CONTROL_TIMEOUT_JIFFIES);
 
-	if (ret < 0) {
+	if (ret < 0)
 		BT_ERR("%s error(%d)\n", __func__, ret);
-	}
 
 	return ret;
 }
@@ -690,9 +688,8 @@ loadfw_protect:
 			/* U2M_PDMA descriptor */
 			btmtk_usb_io_write32(data, 0x230, cur_len);
 
-			while ((sent_len % 4) != 0) {
+			while ((sent_len % 4) != 0)
 				sent_len++;
-			}
 
 			/* U2M_PDMA length */
 			btmtk_usb_io_write32(data, 0x234, sent_len << 16);
@@ -945,9 +942,8 @@ static void btmtk_usb_bulk_in_complete(struct urb *urb)
 	BT_DBG("%s:%s urb %p status %d count %d", __func__, hdev->name,
 					urb, urb->status, urb->actual_length);
 
-	if (!test_bit(HCI_RUNNING, &hdev->flags)) {
+	if (!test_bit(HCI_RUNNING, &hdev->flags))
 		return;
-	}
 
 	if (urb->status == 0) {
 		hdev->stat.byte_rx += urb->actual_length;
-- 
cgit 


From b86e2ff5c4c5499067fd5ca66a47d48c36182523 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Tue, 8 Oct 2013 19:58:24 +0530
Subject: Staging: btmtk_usb: Removal of Unnecessary white spaces

The patch fixes the following checkpatch.pl warning in btmtk_usb.c
WARNING: unnecessary whitespace before a quoted newline

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Zach Brown <zab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/btmtk_usb/btmtk_usb.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/btmtk_usb/btmtk_usb.c b/drivers/staging/btmtk_usb/btmtk_usb.c
index d8ede3a5d5c2..5dd8744464c0 100644
--- a/drivers/staging/btmtk_usb/btmtk_usb.c
+++ b/drivers/staging/btmtk_usb/btmtk_usb.c
@@ -191,14 +191,14 @@ static void btmtk_usb_cap_init(struct btmtk_usb_data *data)
 		ret = request_firmware(&firmware, MT7650_FIRMWARE, &udev->dev);
 		if (ret < 0) {
 			if (ret == -ENOENT) {
-				BT_ERR("Firmware file \"%s\" not found \n",
+				BT_ERR("Firmware file \"%s\" not found\n",
 						MT7650_FIRMWARE);
 			} else {
-				BT_ERR("Firmware file \"%s\" request failed (err=%d) \n",
+				BT_ERR("Firmware file \"%s\" request failed (err=%d)\n",
 					MT7650_FIRMWARE, ret);
 			}
 		} else {
-			BT_DBG("Firmware file \"%s\" Found \n",
+			BT_DBG("Firmware file \"%s\" Found\n",
 					MT7650_FIRMWARE);
 			/* load firmware here */
 			data->firmware = firmware;
-- 
cgit 


From 4ddffcca5ec47dd634870492f2292635ae3777c7 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Tue, 8 Oct 2013 19:59:59 +0530
Subject: Staging: btmtk_usb: Fix indentation for conditional statement

The patch fixes the following checkpatch.pl warning in btmtk_usb.c
WARNING: suspect code indent for conditional statements

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/btmtk_usb/btmtk_usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/btmtk_usb/btmtk_usb.c b/drivers/staging/btmtk_usb/btmtk_usb.c
index 5dd8744464c0..3234325f3b32 100644
--- a/drivers/staging/btmtk_usb/btmtk_usb.c
+++ b/drivers/staging/btmtk_usb/btmtk_usb.c
@@ -1514,7 +1514,7 @@ static void btmtk_usb_work(struct work_struct *work)
 		__set_isoc_interface(hdev, 0);
 
 		if (test_and_clear_bit(BTUSB_DID_ISO_RESUME, &data->flags))
-			 usb_autopm_put_interface(data->isoc ?
+			usb_autopm_put_interface(data->isoc ?
 					 data->isoc : data->intf);
 	}
 }
-- 
cgit 


From 8365882373e2b2ccc302aa269342b699ef01f004 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Thu, 10 Oct 2013 23:44:41 +0530
Subject: Staging: btmtk_usb: Fix line length exceeding 80 characters using
 min_t macro

This patch fixes the following checkpatch.pl warning in btmtk_usb.c:
WARNING: line over 80 characters in the file
by using kernel built_in min_t macro.

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Zach Brown <zab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/btmtk_usb/btmtk_usb.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/btmtk_usb/btmtk_usb.c b/drivers/staging/btmtk_usb/btmtk_usb.c
index 3234325f3b32..1b0f993b350c 100644
--- a/drivers/staging/btmtk_usb/btmtk_usb.c
+++ b/drivers/staging/btmtk_usb/btmtk_usb.c
@@ -417,8 +417,7 @@ load_patch_protect:
 	/* loading rom patch */
 	while (1) {
 		s32 sent_len_max = UPLOAD_PATCH_UNIT - PATCH_HEADER_SIZE;
-		sent_len = (patch_len - cur_len) >= sent_len_max ?
-			sent_len_max : (patch_len - cur_len);
+		sent_len = min_t(s32, (patch_len - cur_len), sent_len_max);
 
 		BT_DBG("patch_len = %d\n", patch_len);
 		BT_DBG("cur_len = %d\n", cur_len);
@@ -673,8 +672,7 @@ loadfw_protect:
 
 	/* Loading ILM */
 	while (1) {
-		sent_len = (ilm_len - cur_len) >= 14336 ? 14336 :
-			(ilm_len - cur_len);
+		sent_len = min_t(s32, (ilm_len - cur_len), 14336);
 
 		if (sent_len > 0) {
 			packet_header &= ~(0xffffffff);
@@ -732,8 +730,7 @@ loadfw_protect:
 
 	/* Loading DLM */
 	while (1) {
-		sent_len = (dlm_len - cur_len) >= 14336 ? 14336 :
-			(dlm_len - cur_len);
+		sent_len = min_t(s32, (dlm_len - cur_len), 14336);
 
 		if (sent_len <= 0)
 			break;
-- 
cgit 


From 9d34876f820d55c94bd0b2a2ed3d2e2976cbd997 Mon Sep 17 00:00:00 2001
From: Robert Love <robert.w.love@intel.com>
Date: Thu, 5 Sep 2013 07:47:27 +0000
Subject: libfcoe: Make fcoe_sysfs optional / fix fnic NULL exception

fnic doesn't use any of the create/destroy/enable/disable interfaces
either from the (legacy) module paramaters or the (new) fcoe_sysfs
interfaces. When fcoe_sysfs was introduced fnic wasn't changed since
it wasn't using the interfaces. libfcoe incorrectly assumed that that
all of its users were using fcoe_sysfs and when adding and deleting
FCFs would assume the existance of a fcoe_ctlr_device. fnic was not
allocating this structure because it doesn't care about the standard
user interfaces (fnic starts on link only). If/When libfcoe tried to use
the fcoe_ctlr_device's lock for the first time a NULL pointer exception
would be triggered.

Since fnic doesn't care about sysfs or user interfaces, the solution
is to drop libfcoe's assumption that all drivers are using fcoe_sysfs.

This patch accomplishes this by changing some of the structure
relationships.

We need a way to determine when a LLD is using fcoe_sysfs or not and
we can do that by checking for the existance of the fcoe_ctlr_device.
Prior to this patch, it was assumed that the fcoe_ctlr structure was
allocated with the fcoe_ctlr_device and immediately followed it in
memory. To reach the fcoe_ctlr_device we would simply go back in memory
from the fcoe_ctlr to get the fcoe_ctlr_device.

Since fnic doesn't allocate the fcoe_ctlr_device, we cannot keep that
assumption. This patch adds a pointer from the fcoe_ctlr to the
fcoe_ctlr_device. For bnx2fc and fcoe we will continue to allocate the
two structures together, but then we'll set the ctlr->cdev pointer
to point at the fcoe_ctlr_device. fnic will not change and will continue
to allocate the fcoe_ctlr itself, and ctlr->cdev will remain NULL.

When libfcoe adds fcoe_fcf's to the fcoe_ctlr it will check if ctlr->cdev
is set and only if so will it continue to interact with fcoe_sysfs.

Signed-off-by: Robert Love <robert.w.love@intel.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Tested-by: Hiral Patel <hiralpat@cisco.com>
---
 drivers/scsi/bnx2fc/bnx2fc_fcoe.c |  1 +
 drivers/scsi/fcoe/fcoe.c          |  1 +
 drivers/scsi/fcoe/fcoe_ctlr.c     | 94 ++++++++++++++++++++++++++-------------
 include/scsi/libfcoe.h            |  7 ++-
 4 files changed, 71 insertions(+), 32 deletions(-)

diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index 69ac55495c1d..27f2cc4b97a5 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -1381,6 +1381,7 @@ struct bnx2fc_interface *bnx2fc_interface_create(struct bnx2fc_hba *hba,
 		return NULL;
 	}
 	ctlr = fcoe_ctlr_device_priv(ctlr_dev);
+	ctlr->cdev = ctlr_dev;
 	interface = fcoe_ctlr_priv(ctlr);
 	dev_hold(netdev);
 	kref_init(&interface->kref);
diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index dff40b2fccbd..8626988e12a5 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -408,6 +408,7 @@ static struct fcoe_interface *fcoe_interface_create(struct net_device *netdev,
 	}
 
 	ctlr = fcoe_ctlr_device_priv(ctlr_dev);
+	ctlr->cdev = ctlr_dev;
 	fcoe = fcoe_ctlr_priv(ctlr);
 
 	dev_hold(netdev);
diff --git a/drivers/scsi/fcoe/fcoe_ctlr.c b/drivers/scsi/fcoe/fcoe_ctlr.c
index 692c6535fe75..75efdbc54ef8 100644
--- a/drivers/scsi/fcoe/fcoe_ctlr.c
+++ b/drivers/scsi/fcoe/fcoe_ctlr.c
@@ -160,10 +160,16 @@ void fcoe_ctlr_init(struct fcoe_ctlr *fip, enum fip_state mode)
 }
 EXPORT_SYMBOL(fcoe_ctlr_init);
 
+/**
+ * fcoe_sysfs_fcf_add() - Add a fcoe_fcf{,_device} to a fcoe_ctlr{,_device}
+ * @new: The newly discovered FCF
+ *
+ * Called with fip->ctlr_mutex held
+ */
 static int fcoe_sysfs_fcf_add(struct fcoe_fcf *new)
 {
 	struct fcoe_ctlr *fip = new->fip;
-	struct fcoe_ctlr_device *ctlr_dev = fcoe_ctlr_to_ctlr_dev(fip);
+	struct fcoe_ctlr_device *ctlr_dev;
 	struct fcoe_fcf_device *temp, *fcf_dev;
 	int rc = -ENOMEM;
 
@@ -174,8 +180,6 @@ static int fcoe_sysfs_fcf_add(struct fcoe_fcf *new)
 	if (!temp)
 		goto out;
 
-	mutex_lock(&ctlr_dev->lock);
-
 	temp->fabric_name = new->fabric_name;
 	temp->switch_name = new->switch_name;
 	temp->fc_map = new->fc_map;
@@ -185,55 +189,83 @@ static int fcoe_sysfs_fcf_add(struct fcoe_fcf *new)
 	temp->fka_period = new->fka_period;
 	temp->selected = 0; /* default to unselected */
 
-	fcf_dev = fcoe_fcf_device_add(ctlr_dev, temp);
-	if (unlikely(!fcf_dev))
-		goto unlock;
-
 	/*
-	 * The fcoe_sysfs layer can return a CONNECTED fcf that
-	 * has a priv (fcf was never deleted) or a CONNECTED fcf
-	 * that doesn't have a priv (fcf was deleted). However,
-	 * libfcoe will always delete FCFs before trying to add
-	 * them. This is ensured because both recv_adv and
-	 * age_fcfs are protected by the the fcoe_ctlr's mutex.
-	 * This means that we should never get a FCF with a
-	 * non-NULL priv pointer.
+	 * If ctlr_dev doesn't exist then it means we're a libfcoe user
+	 * who doesn't use fcoe_syfs and didn't allocate a fcoe_ctlr_device.
+	 * fnic would be an example of a driver with this behavior. In this
+	 * case we want to add the fcoe_fcf to the fcoe_ctlr list, but we
+	 * don't want to make sysfs changes.
 	 */
-	BUG_ON(fcf_dev->priv);
 
-	fcf_dev->priv = new;
-	new->fcf_dev = fcf_dev;
+	ctlr_dev = fcoe_ctlr_to_ctlr_dev(fip);
+	if (ctlr_dev) {
+		mutex_lock(&ctlr_dev->lock);
+		fcf_dev = fcoe_fcf_device_add(ctlr_dev, temp);
+		if (unlikely(!fcf_dev)) {
+			rc = -ENOMEM;
+			goto out;
+		}
+
+		/*
+		 * The fcoe_sysfs layer can return a CONNECTED fcf that
+		 * has a priv (fcf was never deleted) or a CONNECTED fcf
+		 * that doesn't have a priv (fcf was deleted). However,
+		 * libfcoe will always delete FCFs before trying to add
+		 * them. This is ensured because both recv_adv and
+		 * age_fcfs are protected by the the fcoe_ctlr's mutex.
+		 * This means that we should never get a FCF with a
+		 * non-NULL priv pointer.
+		 */
+		BUG_ON(fcf_dev->priv);
+
+		fcf_dev->priv = new;
+		new->fcf_dev = fcf_dev;
+		mutex_unlock(&ctlr_dev->lock);
+	}
 
 	list_add(&new->list, &fip->fcfs);
 	fip->fcf_count++;
 	rc = 0;
 
-unlock:
-	mutex_unlock(&ctlr_dev->lock);
-
 out:
 	kfree(temp);
 	return rc;
 }
 
+/**
+ * fcoe_sysfs_fcf_del() - Remove a fcoe_fcf{,_device} to a fcoe_ctlr{,_device}
+ * @new: The FCF to be removed
+ *
+ * Called with fip->ctlr_mutex held
+ */
 static void fcoe_sysfs_fcf_del(struct fcoe_fcf *new)
 {
 	struct fcoe_ctlr *fip = new->fip;
-	struct fcoe_ctlr_device *ctlr_dev = fcoe_ctlr_to_ctlr_dev(fip);
+	struct fcoe_ctlr_device *cdev;
 	struct fcoe_fcf_device *fcf_dev;
 
 	list_del(&new->list);
 	fip->fcf_count--;
 
-	mutex_lock(&ctlr_dev->lock);
-
-	fcf_dev = fcoe_fcf_to_fcf_dev(new);
-	WARN_ON(!fcf_dev);
-	new->fcf_dev = NULL;
-	fcoe_fcf_device_delete(fcf_dev);
-	kfree(new);
-
-	mutex_unlock(&ctlr_dev->lock);
+	/*
+	 * If ctlr_dev doesn't exist then it means we're a libfcoe user
+	 * who doesn't use fcoe_syfs and didn't allocate a fcoe_ctlr_device
+	 * or a fcoe_fcf_device.
+	 *
+	 * fnic would be an example of a driver with this behavior. In this
+	 * case we want to remove the fcoe_fcf from the fcoe_ctlr list (above),
+	 * but we don't want to make sysfs changes.
+	 */
+	cdev = fcoe_ctlr_to_ctlr_dev(fip);
+	if (cdev) {
+		mutex_lock(&cdev->lock);
+		fcf_dev = fcoe_fcf_to_fcf_dev(new);
+		WARN_ON(!fcf_dev);
+		new->fcf_dev = NULL;
+		fcoe_fcf_device_delete(fcf_dev);
+		kfree(new);
+		mutex_unlock(&cdev->lock);
+	}
 }
 
 /**
diff --git a/include/scsi/libfcoe.h b/include/scsi/libfcoe.h
index 4427393115ea..de7e3ee60f0c 100644
--- a/include/scsi/libfcoe.h
+++ b/include/scsi/libfcoe.h
@@ -90,6 +90,7 @@ enum fip_state {
  * @lp:		   &fc_lport: libfc local port.
  * @sel_fcf:	   currently selected FCF, or NULL.
  * @fcfs:	   list of discovered FCFs.
+ * @cdev:          (Optional) pointer to sysfs fcoe_ctlr_device.
  * @fcf_count:	   number of discovered FCF entries.
  * @sol_time:	   time when a multicast solicitation was last sent.
  * @sel_time:	   time after which to select an FCF.
@@ -127,6 +128,7 @@ struct fcoe_ctlr {
 	struct fc_lport *lp;
 	struct fcoe_fcf *sel_fcf;
 	struct list_head fcfs;
+	struct fcoe_ctlr_device *cdev;
 	u16 fcf_count;
 	unsigned long sol_time;
 	unsigned long sel_time;
@@ -168,8 +170,11 @@ static inline void *fcoe_ctlr_priv(const struct fcoe_ctlr *ctlr)
 	return (void *)(ctlr + 1);
 }
 
+/*
+ * This assumes that the fcoe_ctlr (x) is allocated with the fcoe_ctlr_device.
+ */
 #define fcoe_ctlr_to_ctlr_dev(x)					\
-	(struct fcoe_ctlr_device *)(((struct fcoe_ctlr_device *)(x)) - 1)
+	(x)->cdev
 
 /**
  * struct fcoe_fcf - Fibre-Channel Forwarder
-- 
cgit 


From c92cb53d98972da3d79f7443b6304ad6ed33dbdc Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Tue, 8 Oct 2013 18:08:17 +0300
Subject: Staging: iio: fix sizeof *ring should be sizeof(*ring)

Fix checkpatch.pl issues with sizeof *ring should be sizeof(*ring)
in sca3000_ring.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/iio/accel/sca3000_ring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/iio/accel/sca3000_ring.c b/drivers/staging/iio/accel/sca3000_ring.c
index 0f2ee3373d9a..db44240186e0 100644
--- a/drivers/staging/iio/accel/sca3000_ring.c
+++ b/drivers/staging/iio/accel/sca3000_ring.c
@@ -252,7 +252,7 @@ static struct iio_buffer *sca3000_rb_allocate(struct iio_dev *indio_dev)
 	struct iio_buffer *buf;
 	struct iio_hw_buffer *ring;
 
-	ring = kzalloc(sizeof *ring, GFP_KERNEL);
+	ring = kzalloc(sizeof(*ring), GFP_KERNEL);
 	if (!ring)
 		return NULL;
 
-- 
cgit 


From 6973c6b90adcf499b2ec03a94328b8ee32df2b71 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Tue, 8 Oct 2013 18:51:40 +0300
Subject: Staging: wlan-ng: fix printk(KERN_DEBUG in p80211wep.c

Fix checkpatch.pl issues with prefer netdev_dbg(netdev, .. then
dev_dbg(dev, .. then pr_debug(.. to printk(KERN_DEBUG in p80211wep.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/wlan-ng/p80211wep.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/wlan-ng/p80211wep.c b/drivers/staging/wlan-ng/p80211wep.c
index 77e50a4aa7e9..c4fabadf5d74 100644
--- a/drivers/staging/wlan-ng/p80211wep.c
+++ b/drivers/staging/wlan-ng/p80211wep.c
@@ -134,7 +134,7 @@ int wep_change_key(wlandevice_t *wlandev, int keynum, u8 *key, int keylen)
 		return -1;
 
 #ifdef WEP_DEBUG
-	printk(KERN_DEBUG "WEP key %d len %d = %*phC\n", keynum, keylen,
+	pr_debug("WEP key %d len %d = %*phC\n", keynum, keylen,
 			  8, key);
 #endif
 
@@ -182,7 +182,7 @@ int wep_decrypt(wlandevice_t *wlandev, u8 *buf, u32 len, int key_override,
 	keylen += 3;		/* add in IV bytes */
 
 #ifdef WEP_DEBUG
-	printk(KERN_DEBUG "D %d: %*ph (%d %d) %*phC\n", len, 3, key,
+	pr_debug("D %d: %*ph (%d %d) %*phC\n", len, 3, key,
 			  keyidx, keylen, 5, key + 3);
 #endif
 
@@ -259,7 +259,7 @@ int wep_encrypt(wlandevice_t *wlandev, u8 *buf, u8 *dst, u32 len, int keynum,
 	keylen += 3;		/* add in IV bytes */
 
 #ifdef WEP_DEBUG
-	printk(KERN_DEBUG "E %d (%d/%d %d) %*ph %*phC\n", len,
+	pr_debug("E %d (%d/%d %d) %*ph %*phC\n", len,
 			  iv[3], keynum, keylen, 3, key, 5, key + 3);
 #endif
 
-- 
cgit 


From 55da06eba89dc025a9a13855a4a83dfb218df97c Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Tue, 8 Oct 2013 01:57:57 -0400
Subject: Staging: wlan-ng: fix sparse warnings for static functions

Fix sparse warnings for static functions
* drivers/staging/wlan-ng/cfg80211.c:101:5: warning:
symbol 'prism2_change_virtual_intf' was not declared.

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Signed-off-by: Zach Brown <zab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/wlan-ng/cfg80211.c | 59 +++++++++++++++++++-------------------
 1 file changed, 30 insertions(+), 29 deletions(-)

diff --git a/drivers/staging/wlan-ng/cfg80211.c b/drivers/staging/wlan-ng/cfg80211.c
index 237479acc3b4..a4fd5c4717a8 100644
--- a/drivers/staging/wlan-ng/cfg80211.c
+++ b/drivers/staging/wlan-ng/cfg80211.c
@@ -98,10 +98,10 @@ static int prism2_domibset_pstr32(wlandevice_t *wlandev,
 
 
 /* The interface functions, called by the cfg80211 layer */
-int prism2_change_virtual_intf(struct wiphy *wiphy,
-			       struct net_device *dev,
-			       enum nl80211_iftype type, u32 *flags,
-			       struct vif_params *params)
+static int prism2_change_virtual_intf(struct wiphy *wiphy,
+				      struct net_device *dev,
+				      enum nl80211_iftype type, u32 *flags,
+				      struct vif_params *params)
 {
 	wlandevice_t *wlandev = dev->ml_priv;
 	u32 data;
@@ -140,9 +140,9 @@ exit:
 	return err;
 }
 
-int prism2_add_key(struct wiphy *wiphy, struct net_device *dev,
-		   u8 key_index, bool pairwise, const u8 *mac_addr,
-		   struct key_params *params)
+static int prism2_add_key(struct wiphy *wiphy, struct net_device *dev,
+			  u8 key_index, bool pairwise, const u8 *mac_addr,
+			  struct key_params *params)
 {
 	wlandevice_t *wlandev = dev->ml_priv;
 	u32 did;
@@ -199,9 +199,10 @@ exit:
 	return err;
 }
 
-int prism2_get_key(struct wiphy *wiphy, struct net_device *dev,
-		   u8 key_index, bool pairwise, const u8 *mac_addr, void *cookie,
-		   void (*callback)(void *cookie, struct key_params*))
+static int prism2_get_key(struct wiphy *wiphy, struct net_device *dev,
+			  u8 key_index, bool pairwise,
+			  const u8 *mac_addr, void *cookie,
+			  void (*callback)(void *cookie, struct key_params*))
 {
 	wlandevice_t *wlandev = dev->ml_priv;
 	struct key_params params;
@@ -228,8 +229,8 @@ int prism2_get_key(struct wiphy *wiphy, struct net_device *dev,
 	return 0;
 }
 
-int prism2_del_key(struct wiphy *wiphy, struct net_device *dev,
-		   u8 key_index, bool pairwise, const u8 *mac_addr)
+static int prism2_del_key(struct wiphy *wiphy, struct net_device *dev,
+			  u8 key_index, bool pairwise, const u8 *mac_addr)
 {
 	wlandevice_t *wlandev = dev->ml_priv;
 	u32 did;
@@ -274,8 +275,8 @@ exit:
 	return err;
 }
 
-int prism2_set_default_key(struct wiphy *wiphy, struct net_device *dev,
-			   u8 key_index, bool unicast, bool multicast)
+static int prism2_set_default_key(struct wiphy *wiphy, struct net_device *dev,
+				  u8 key_index, bool unicast, bool multicast)
 {
 	wlandevice_t *wlandev = dev->ml_priv;
 
@@ -293,8 +294,8 @@ int prism2_set_default_key(struct wiphy *wiphy, struct net_device *dev,
 }
 
 
-int prism2_get_station(struct wiphy *wiphy, struct net_device *dev,
-		       u8 *mac, struct station_info *sinfo)
+static int prism2_get_station(struct wiphy *wiphy, struct net_device *dev,
+			      u8 *mac, struct station_info *sinfo)
 {
 	wlandevice_t *wlandev = dev->ml_priv;
 	struct p80211msg_lnxreq_commsquality quality;
@@ -327,7 +328,7 @@ int prism2_get_station(struct wiphy *wiphy, struct net_device *dev,
 	return result;
 }
 
-int prism2_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
+static int prism2_scan(struct wiphy *wiphy, struct cfg80211_scan_request *request)
 {
 	struct net_device *dev;
 	struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
@@ -436,7 +437,7 @@ exit:
 	return err;
 }
 
-int prism2_set_wiphy_params(struct wiphy *wiphy, u32 changed)
+static int prism2_set_wiphy_params(struct wiphy *wiphy, u32 changed)
 {
 	struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
 	wlandevice_t *wlandev = priv->wlandev;
@@ -478,8 +479,8 @@ exit:
 	return err;
 }
 
-int prism2_connect(struct wiphy *wiphy, struct net_device *dev,
-		   struct cfg80211_connect_params *sme)
+static int prism2_connect(struct wiphy *wiphy, struct net_device *dev,
+			  struct cfg80211_connect_params *sme)
 {
 	wlandevice_t *wlandev = dev->ml_priv;
 	struct ieee80211_channel *channel = sme->channel;
@@ -602,8 +603,8 @@ exit:
 	return err;
 }
 
-int prism2_disconnect(struct wiphy *wiphy, struct net_device *dev,
-		      u16 reason_code)
+static int prism2_disconnect(struct wiphy *wiphy, struct net_device *dev,
+			     u16 reason_code)
 {
 	wlandevice_t *wlandev = dev->ml_priv;
 	struct p80211msg_lnxreq_autojoin msg_join;
@@ -626,20 +627,20 @@ int prism2_disconnect(struct wiphy *wiphy, struct net_device *dev,
 }
 
 
-int prism2_join_ibss(struct wiphy *wiphy, struct net_device *dev,
-		     struct cfg80211_ibss_params *params)
+static int prism2_join_ibss(struct wiphy *wiphy, struct net_device *dev,
+			    struct cfg80211_ibss_params *params)
 {
 	return -EOPNOTSUPP;
 }
 
-int prism2_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
+static int prism2_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
 {
 	return -EOPNOTSUPP;
 }
 
 
-int prism2_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
-			enum nl80211_tx_power_setting type, int mbm)
+static int prism2_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
+			       enum nl80211_tx_power_setting type, int mbm)
 {
 	struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
 	wlandevice_t *wlandev = priv->wlandev;
@@ -665,8 +666,8 @@ exit:
 	return err;
 }
 
-int prism2_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
-			int *dbm)
+static int prism2_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev,
+			       int *dbm)
 {
 	struct prism2_wiphy_private *priv = wiphy_priv(wiphy);
 	wlandevice_t *wlandev = priv->wlandev;
-- 
cgit 


From 7db78438d932d12afda5f367cfcb56337457e037 Mon Sep 17 00:00:00 2001
From: Archana kumari <archanakumari959@gmail.com>
Date: Tue, 8 Oct 2013 21:28:14 +0530
Subject: staging:media:lirc: quoted string split across lines

Fix checkpatch.pl issues with quoted string split across lines in lirc_imon.c

Signed-off-by: Archana kumari <archanakumari959@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/media/lirc/lirc_imon.c | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/media/lirc/lirc_imon.c b/drivers/staging/media/lirc/lirc_imon.c
index 4afa7da11f37..8180187d8ebd 100644
--- a/drivers/staging/media/lirc/lirc_imon.c
+++ b/drivers/staging/media/lirc/lirc_imon.c
@@ -619,8 +619,9 @@ static void imon_incoming_packet(struct imon_context *context,
 		return;
 
 	if (len != 8) {
-		dev_warn(dev, "imon %s: invalid incoming packet "
-			 "size (len = %d, intf%d)\n", __func__, len, intf);
+		dev_warn(dev,
+		 "imon %s: invalid incoming packet size (len = %d, intf%d)\n",
+				__func__, len, intf);
 		return;
 	}
 
@@ -878,8 +879,8 @@ static int imon_probe(struct usb_interface *interface,
 		alloc_status = 7;
 		goto unlock;
 	} else
-		dev_info(dev, "Registered iMON driver "
-			 "(lirc minor: %d)\n", lirc_minor);
+		dev_info(dev, "Registered iMON driver (lirc minor: %d)\n",
+				lirc_minor);
 
 	/* Needed while unregistering! */
 	driver->minor = lirc_minor;
@@ -923,14 +924,16 @@ static int imon_probe(struct usb_interface *interface,
 
 		if (usb_register_dev(interface, &imon_class)) {
 			/* Not a fatal error, so ignore */
-			dev_info(dev, "%s: could not get a minor number for "
-				 "display\n", __func__);
+			dev_info(dev,
+			       "%s: could not get a minor number for display\n"
+						__func__);
 		}
 	}
 
-	dev_info(dev, "iMON device (%04x:%04x, intf%d) on "
-		 "usb<%d:%d> initialized\n", vendor, product, ifnum,
-		 usbdev->bus->busnum, usbdev->devnum);
+	dev_info(dev,
+		"iMON device (%04x:%04x, intf%d) on usb<%d:%d> initialized\n",
+			vendor, product, ifnum, usbdev->bus->busnum,
+					usbdev->devnum);
 
 unlock:
 	mutex_unlock(&context->ctx_lock);
-- 
cgit 


From d62403d6dd60b86e1dc9125324a1b3e78fdca913 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Tue, 8 Oct 2013 23:31:51 +0300
Subject: Staging: lustre: fix ERROR: do not initialise statics to 0 or NULL in
 module.c

Fix checkpatch.pl issues with do not initialise statics to 0 or NULL in module.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/lnet/module.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lnet/lnet/module.c b/drivers/staging/lustre/lnet/lnet/module.c
index afb81755cbad..f323f038b22a 100644
--- a/drivers/staging/lustre/lnet/lnet/module.c
+++ b/drivers/staging/lustre/lnet/lnet/module.c
@@ -37,7 +37,7 @@
 #define DEBUG_SUBSYSTEM S_LNET
 #include <linux/lnet/lib-lnet.h>
 
-static int config_on_load = 0;
+static int config_on_load;
 CFS_MODULE_PARM(config_on_load, "i", int, 0444,
 		"configure network at module load");
 
-- 
cgit 


From eca5b8813035d867e771a92b1eb7d917fec22f11 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Tue, 8 Oct 2013 23:31:52 +0300
Subject: Staging: lustre: fix space prohibited between function name and open
 parenthesis '(' in module.c

Fix checkpatch.pl issues with space prohibited between
function name and open parenthesis '(' in module.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/lnet/module.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/lustre/lnet/lnet/module.c b/drivers/staging/lustre/lnet/lnet/module.c
index f323f038b22a..6db8774ff7b7 100644
--- a/drivers/staging/lustre/lnet/lnet/module.c
+++ b/drivers/staging/lustre/lnet/lnet/module.c
@@ -44,7 +44,7 @@ CFS_MODULE_PARM(config_on_load, "i", int, 0444,
 static struct mutex lnet_config_mutex;
 
 int
-lnet_configure (void *arg)
+lnet_configure(void *arg)
 {
 	/* 'arg' only there so I can be passed to cfs_create_thread() */
 	int    rc = 0;
@@ -64,7 +64,7 @@ lnet_configure (void *arg)
 }
 
 int
-lnet_unconfigure (void)
+lnet_unconfigure(void)
 {
 	int   refcount;
 
@@ -124,7 +124,7 @@ init_lnet(void)
 	}
 
 	rc = libcfs_register_ioctl(&lnet_ioctl_handler);
-	LASSERT (rc == 0);
+	LASSERT(rc == 0);
 
 	if (config_on_load) {
 		/* Have to schedule a separate thread to avoid deadlocking
@@ -141,7 +141,7 @@ fini_lnet(void)
 	int rc;
 
 	rc = libcfs_deregister_ioctl(&lnet_ioctl_handler);
-	LASSERT (rc == 0);
+	LASSERT(rc == 0);
 
 	LNetFini();
 }
-- 
cgit 


From 3f13cd9ec61c8b02c33df44a5a9103ae475d10ac Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Tue, 8 Oct 2013 23:43:21 +0300
Subject: Staging: lustre: fix space prohibited between function name and open
 parenthesis '(' in lo.c

Fix checkpatch.pl issues with space prohibited between
function name and open parenthesis '(' in lo.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/lnet/lo.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/lustre/lnet/lnet/lo.c b/drivers/staging/lustre/lnet/lnet/lo.c
index 670dae34107c..609e420680c9 100644
--- a/drivers/staging/lustre/lnet/lnet/lo.c
+++ b/drivers/staging/lustre/lnet/lnet/lo.c
@@ -36,16 +36,16 @@
 #include <linux/lnet/lib-lnet.h>
 
 int
-lolnd_send (lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg)
+lolnd_send(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg)
 {
-	LASSERT (!lntmsg->msg_routing);
-	LASSERT (!lntmsg->msg_target_is_router);
+	LASSERT(!lntmsg->msg_routing);
+	LASSERT(!lntmsg->msg_target_is_router);
 
 	return lnet_parse(ni, &lntmsg->msg_hdr, ni->ni_nid, lntmsg, 0);
 }
 
 int
-lolnd_recv (lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg,
+lolnd_recv(lnet_ni_t *ni, void *private, lnet_msg_t *lntmsg,
 	    int delayed, unsigned int niov,
 	    struct iovec *iov, lnet_kiov_t *kiov,
 	    unsigned int offset, unsigned int mlen, unsigned int rlen)
@@ -89,17 +89,17 @@ static int lolnd_instanced;
 void
 lolnd_shutdown(lnet_ni_t *ni)
 {
-	CDEBUG (D_NET, "shutdown\n");
-	LASSERT (lolnd_instanced);
+	CDEBUG(D_NET, "shutdown\n");
+	LASSERT(lolnd_instanced);
 
 	lolnd_instanced = 0;
 }
 
 int
-lolnd_startup (lnet_ni_t *ni)
+lolnd_startup(lnet_ni_t *ni)
 {
-	LASSERT (ni->ni_lnd == &the_lolnd);
-	LASSERT (!lolnd_instanced);
+	LASSERT(ni->ni_lnd == &the_lolnd);
+	LASSERT(!lolnd_instanced);
 	lolnd_instanced = 1;
 
 	return (0);
-- 
cgit 


From cb03b88c28f4e4c2976b11142c1be59f284b15f3 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Tue, 8 Oct 2013 23:43:22 +0300
Subject: Staging: lustre: fix return is not a function, parentheses are not
 required in lo.c

fix checkpatch.pl issues with return is not a function,
parentheses are not required in lo.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/lnet/lo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lnet/lnet/lo.c b/drivers/staging/lustre/lnet/lnet/lo.c
index 609e420680c9..efc798e01934 100644
--- a/drivers/staging/lustre/lnet/lnet/lo.c
+++ b/drivers/staging/lustre/lnet/lnet/lo.c
@@ -102,7 +102,7 @@ lolnd_startup(lnet_ni_t *ni)
 	LASSERT(!lolnd_instanced);
 	lolnd_instanced = 1;
 
-	return (0);
+	return 0;
 }
 
 lnd_t the_lolnd = {
-- 
cgit 


From 68095f1803cb8612077ac2d6ff8981068d3863eb Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Wed, 9 Oct 2013 11:58:02 +0530
Subject: staging:go7007:Remove driver-specific debugging defines in favor of
 pr_debug

Remove driver-specific debugging defines in favor of pr_debug in
go7007-usb.c

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/media/go7007/go7007-usb.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/drivers/staging/media/go7007/go7007-usb.c b/drivers/staging/media/go7007/go7007-usb.c
index 1aa659c04b7a..5ea50dae9ddc 100644
--- a/drivers/staging/media/go7007/go7007-usb.c
+++ b/drivers/staging/media/go7007/go7007-usb.c
@@ -39,7 +39,6 @@ module_param(assume_endura, int, 0644);
 MODULE_PARM_DESC(assume_endura, "when probing fails, "
 				"hardware is a Pelco Endura");
 
-/* #define GO7007_USB_DEBUG */
 /* #define GO7007_I2C_DEBUG */ /* for debugging the EZ-USB I2C adapter */
 
 #define	HPI_STATUS_ADDR	0xFFF4
@@ -664,9 +663,7 @@ static int go7007_usb_interface_reset(struct go7007 *go)
 
 	if (usb->board->flags & GO7007_USB_EZUSB) {
 		/* Reset buffer in EZ-USB */
-#ifdef GO7007_USB_DEBUG
 		pr_debug("resetting EZ-USB buffers\n");
-#endif
 		if (go7007_usb_vendor_request(go, 0x10, 0, 0, NULL, 0, 0) < 0 ||
 		    go7007_usb_vendor_request(go, 0x10, 0, 0, NULL, 0, 0) < 0)
 			return -1;
@@ -695,9 +692,7 @@ static int go7007_usb_ezusb_write_interrupt(struct go7007 *go,
 	u16 status_reg = 0;
 	int timeout = 500;
 
-#ifdef GO7007_USB_DEBUG
 	pr_debug("WriteInterrupt: %04x %04x\n", addr, data);
-#endif
 
 	for (i = 0; i < 100; ++i) {
 		r = usb_control_msg(usb->usbdev,
@@ -744,9 +739,7 @@ static int go7007_usb_onboard_write_interrupt(struct go7007 *go,
 	int r;
 	int timeout = 500;
 
-#ifdef GO7007_USB_DEBUG
 	pr_debug("WriteInterrupt: %04x %04x\n", addr, data);
-#endif
 
 	go->usb_buf[0] = data & 0xff;
 	go->usb_buf[1] = data >> 8;
@@ -785,10 +778,8 @@ static void go7007_usb_readinterrupt_complete(struct urb *urb)
 		go->interrupt_available = 1;
 		go->interrupt_data = __le16_to_cpu(regs[0]);
 		go->interrupt_value = __le16_to_cpu(regs[1]);
-#ifdef GO7007_USB_DEBUG
 		pr_debug("ReadInterrupt: %04x %04x\n",
 				go->interrupt_value, go->interrupt_data);
-#endif
 	}
 
 	wake_up(&go->interrupt_waitq);
@@ -911,9 +902,7 @@ static int go7007_usb_send_firmware(struct go7007 *go, u8 *data, int len)
 	int transferred, pipe;
 	int timeout = 500;
 
-#ifdef GO7007_USB_DEBUG
 	pr_debug("DownloadBuffer sending %d bytes\n", len);
-#endif
 
 	if (usb->board->flags & GO7007_USB_EZUSB)
 		pipe = usb_sndbulkpipe(usb->usbdev, 2);
-- 
cgit 


From 335ade09097a0ab9182b7a495017186403eb5131 Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Wed, 9 Oct 2013 11:58:54 +0530
Subject: staging:go7007:Replace KERN_ERR with pr_err

Replace KERN_ERR with pr_err in go7007-usb.c

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/media/go7007/go7007-usb.c | 52 +++++++++++++------------------
 1 file changed, 21 insertions(+), 31 deletions(-)

diff --git a/drivers/staging/media/go7007/go7007-usb.c b/drivers/staging/media/go7007/go7007-usb.c
index 5ea50dae9ddc..23529f64d883 100644
--- a/drivers/staging/media/go7007/go7007-usb.c
+++ b/drivers/staging/media/go7007/go7007-usb.c
@@ -677,8 +677,7 @@ static int go7007_usb_interface_reset(struct go7007 *go)
 	/* Wait for an interrupt to indicate successful hardware reset */
 	if (go7007_read_interrupt(go, &intr_val, &intr_data) < 0 ||
 			(intr_val & ~0x1) != 0x55aa) {
-		printk(KERN_ERR
-			"go7007-usb: unable to reset the USB interface\n");
+		pr_err("unable to reset the USB interface\n");
 		return -1;
 	}
 	return 0;
@@ -710,9 +709,7 @@ static int go7007_usb_ezusb_write_interrupt(struct go7007 *go,
 	if (r < 0)
 		goto write_int_error;
 	if (i == 100) {
-		printk(KERN_ERR
-			"go7007-usb: device is hung, status reg = 0x%04x\n",
-			status_reg);
+		pr_err("device is hung, status reg = 0x%04x\n", status_reg);
 		return -1;
 	}
 	r = usb_control_msg(usb->usbdev, usb_sndctrlpipe(usb->usbdev, 0), 0x12,
@@ -728,7 +725,7 @@ static int go7007_usb_ezusb_write_interrupt(struct go7007 *go,
 	return 0;
 
 write_int_error:
-	printk(KERN_ERR "go7007-usb: error in WriteInterrupt: %d\n", r);
+	pr_err("error in WriteInterrupt: %d\n", r);
 	return r;
 }
 
@@ -750,7 +747,7 @@ static int go7007_usb_onboard_write_interrupt(struct go7007 *go,
 			USB_TYPE_VENDOR | USB_RECIP_ENDPOINT, 0x55aa,
 			0xf0f0, go->usb_buf, 8, timeout);
 	if (r < 0) {
-		printk(KERN_ERR "go7007-usb: error in WriteInterrupt: %d\n", r);
+		pr_err("error in WriteInterrupt: %d\n", r);
 		return r;
 	}
 	return 0;
@@ -765,15 +762,13 @@ static void go7007_usb_readinterrupt_complete(struct urb *urb)
 	if (status) {
 		if (status != -ESHUTDOWN &&
 				go->status != STATUS_SHUTDOWN) {
-			printk(KERN_ERR
-				"go7007-usb: error in read interrupt: %d\n",
-				urb->status);
+			pr_err("error in read interrupt: %d\n", urb->status);
 		} else {
 			wake_up(&go->interrupt_waitq);
 			return;
 		}
 	} else if (urb->actual_length != urb->transfer_buffer_length) {
-		printk(KERN_ERR "go7007-usb: short read in interrupt pipe!\n");
+		pr_err("short read in interrupt pipe!\n");
 	} else {
 		go->interrupt_available = 1;
 		go->interrupt_data = __le16_to_cpu(regs[0]);
@@ -792,8 +787,7 @@ static int go7007_usb_read_interrupt(struct go7007 *go)
 
 	r = usb_submit_urb(usb->intr_urb, GFP_KERNEL);
 	if (r < 0) {
-		printk(KERN_ERR
-			"go7007-usb: unable to submit interrupt urb: %d\n", r);
+		pr_err("unable to submit interrupt urb: %d\n", r);
 		return r;
 	}
 	return 0;
@@ -809,18 +803,17 @@ static void go7007_usb_read_video_pipe_complete(struct urb *urb)
 		return;
 	}
 	if (status) {
-		printk(KERN_ERR "go7007-usb: error in video pipe: %d\n",
-			status);
+		pr_err("error in video pipe: %d\n", status);
 		return;
 	}
 	if (urb->actual_length != urb->transfer_buffer_length) {
-		printk(KERN_ERR "go7007-usb: short read in video pipe!\n");
+		pr_err("short read in video pipe!\n");
 		return;
 	}
 	go7007_parse_video_stream(go, urb->transfer_buffer, urb->actual_length);
 	r = usb_submit_urb(urb, GFP_ATOMIC);
 	if (r < 0)
-		printk(KERN_ERR "go7007-usb: error in video pipe: %d\n", r);
+		pr_err("error in video pipe: %d\n", r);
 }
 
 static void go7007_usb_read_audio_pipe_complete(struct urb *urb)
@@ -831,19 +824,19 @@ static void go7007_usb_read_audio_pipe_complete(struct urb *urb)
 	if (!vb2_is_streaming(&go->vidq))
 		return;
 	if (status) {
-		printk(KERN_ERR "go7007-usb: error in audio pipe: %d\n",
+		pr_err("error in audio pipe: %d\n",
 			status);
 		return;
 	}
 	if (urb->actual_length != urb->transfer_buffer_length) {
-		printk(KERN_ERR "go7007-usb: short read in audio pipe!\n");
+		pr_err("short read in audio pipe!\n");
 		return;
 	}
 	if (go->audio_deliver != NULL)
 		go->audio_deliver(go, urb->transfer_buffer, urb->actual_length);
 	r = usb_submit_urb(urb, GFP_ATOMIC);
 	if (r < 0)
-		printk(KERN_ERR "go7007-usb: error in audio pipe: %d\n", r);
+		pr_err("error in audio pipe: %d\n", r);
 }
 
 static int go7007_usb_stream_start(struct go7007 *go)
@@ -854,8 +847,7 @@ static int go7007_usb_stream_start(struct go7007 *go)
 	for (i = 0; i < 8; ++i) {
 		r = usb_submit_urb(usb->video_urbs[i], GFP_KERNEL);
 		if (r < 0) {
-			printk(KERN_ERR "go7007-usb: error submitting video "
-					"urb %d: %d\n", i, r);
+			pr_err("error submitting video urb %d: %d\n", i, r);
 			goto video_submit_failed;
 		}
 	}
@@ -865,8 +857,7 @@ static int go7007_usb_stream_start(struct go7007 *go)
 	for (i = 0; i < 8; ++i) {
 		r = usb_submit_urb(usb->audio_urbs[i], GFP_KERNEL);
 		if (r < 0) {
-			printk(KERN_ERR "go7007-usb: error submitting audio "
-					"urb %d: %d\n", i, r);
+			pr_err("error submitting audio urb %d: %d\n", i, r);
 			goto audio_submit_failed;
 		}
 	}
@@ -1111,7 +1102,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 		board = &board_px_tv402u;
 		break;
 	case GO7007_BOARDID_LIFEVIEW_LR192:
-		printk(KERN_ERR "go7007-usb: The Lifeview TV Walker Ultra "
+		pr_err("The Lifeview TV Walker Ultra "
 				"is not supported.  Sorry!\n");
 		return -ENODEV;
 		name = "Lifeview TV Walker Ultra";
@@ -1127,7 +1118,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 		board = &board_ads_usbav_709;
 		break;
 	default:
-		printk(KERN_ERR "go7007-usb: unknown board ID %d!\n",
+		pr_err("unknown board ID %d!\n",
 				(unsigned int)id->driver_info);
 		return -ENODEV;
 	}
@@ -1186,8 +1177,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 		go->i2c_adapter.dev.parent = go->dev;
 		i2c_set_adapdata(&go->i2c_adapter, go);
 		if (i2c_add_adapter(&go->i2c_adapter) < 0) {
-			printk(KERN_ERR
-				"go7007-usb: error: i2c_add_adapter failed\n");
+			pr_err("error: i2c_add_adapter failed\n");
 			goto allocfail;
 		}
 		go->i2c_adapter_online = 1;
@@ -1238,7 +1228,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 	if (go->board_id == GO7007_BOARDID_PX_TV402U) {
 		/* Board strapping indicates tuner model */
 		if (go7007_usb_vendor_request(go, 0x41, 0, 0, go->usb_buf, 3, 1) < 0) {
-			printk(KERN_ERR "go7007-usb: GPIO read failed!\n");
+			pr_err("GPIO read failed!\n");
 			goto allocfail;
 		}
 		switch (go->usb_buf[0] >> 6) {
@@ -1270,7 +1260,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 		 * to the EZ-USB GPIO output pins */
 		if (go7007_usb_vendor_request(go, 0x40, 0x7f02, 0,
 					NULL, 0, 0) < 0) {
-			printk(KERN_ERR "go7007-usb: GPIO write failed!\n");
+			pr_err("GPIO write failed!\n");
 			goto allocfail;
 		}
 	}
@@ -1279,7 +1269,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 	 * a USB1.1 port.  There will be silent corruption of the stream. */
 	if ((board->flags & GO7007_USB_EZUSB) &&
 			usbdev->speed != USB_SPEED_HIGH)
-		printk(KERN_ERR "go7007-usb: *** WARNING ***  This device "
+		pr_err("*** WARNING ***  This device "
 				"must be connected to a USB 2.0 port!  "
 				"Attempting to capture video through a USB 1.1 "
 				"port will result in stream corruption, even "
-- 
cgit 


From 2cd32ac3c0e8506a6c9420074e384d9404561aa7 Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Wed, 9 Oct 2013 15:20:28 +0530
Subject: staging:go7007 : Replace KERN_INFO with pr_info

Replace KERN_INFO with pr_info in go7007-usb.c

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/media/go7007/go7007-usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/media/go7007/go7007-usb.c b/drivers/staging/media/go7007/go7007-usb.c
index 23529f64d883..9039be1e52b6 100644
--- a/drivers/staging/media/go7007/go7007-usb.c
+++ b/drivers/staging/media/go7007/go7007-usb.c
@@ -1109,7 +1109,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 		board = &board_lifeview_lr192;
 		break;
 	case GO7007_BOARDID_SENSORAY_2250:
-		printk(KERN_INFO "Sensoray 2250 found\n");
+		pr_info("Sensoray 2250 found\n");
 		name = "Sensoray 2250/2251";
 		board = &board_sensoray_2250;
 		break;
-- 
cgit 


From a3404dc796782ec2817a2be9524dac9fb73a1619 Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Wed, 9 Oct 2013 15:21:20 +0530
Subject: staging:go7007:Fix line over 80 character warning

Fix "line over 80 characters" warning generated by checkpatch.pl for
go7007-usb.c

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/media/go7007/go7007-usb.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/media/go7007/go7007-usb.c b/drivers/staging/media/go7007/go7007-usb.c
index 9039be1e52b6..e03eded92858 100644
--- a/drivers/staging/media/go7007/go7007-usb.c
+++ b/drivers/staging/media/go7007/go7007-usb.c
@@ -1227,7 +1227,8 @@ static int go7007_usb_probe(struct usb_interface *intf,
 	/* Probe the tuner model on the TV402U */
 	if (go->board_id == GO7007_BOARDID_PX_TV402U) {
 		/* Board strapping indicates tuner model */
-		if (go7007_usb_vendor_request(go, 0x41, 0, 0, go->usb_buf, 3, 1) < 0) {
+		if (go7007_usb_vendor_request(go, 0x41, 0, 0, go->usb_buf, 3,
+					1) < 0) {
 			pr_err("GPIO read failed!\n");
 			goto allocfail;
 		}
-- 
cgit 


From 860276a738d43f645bcd016b76a40e677538be80 Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Wed, 9 Oct 2013 15:21:38 +0530
Subject: staging:go7007:Fix warning on quoted string on multiple lines

Fix checkpatch.pl warning on quoted string on multiple lines in
go7007-usb.c

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/media/go7007/go7007-usb.c | 31 +++++++++++--------------------
 1 file changed, 11 insertions(+), 20 deletions(-)

diff --git a/drivers/staging/media/go7007/go7007-usb.c b/drivers/staging/media/go7007/go7007-usb.c
index e03eded92858..6f756830c421 100644
--- a/drivers/staging/media/go7007/go7007-usb.c
+++ b/drivers/staging/media/go7007/go7007-usb.c
@@ -36,8 +36,8 @@
 
 static unsigned int assume_endura;
 module_param(assume_endura, int, 0644);
-MODULE_PARM_DESC(assume_endura, "when probing fails, "
-				"hardware is a Pelco Endura");
+MODULE_PARM_DESC(assume_endura,
+			"when probing fails, hardware is a Pelco Endura");
 
 /* #define GO7007_I2C_DEBUG */ /* for debugging the EZ-USB I2C adapter */
 
@@ -979,9 +979,8 @@ static int go7007_usb_i2c_master_xfer(struct i2c_adapter *adapter,
 				!(msgs[i].flags & I2C_M_RD) &&
 				(msgs[i + 1].flags & I2C_M_RD)) {
 #ifdef GO7007_I2C_DEBUG
-			pr_debug("i2c write/read %d/%d "
-					"bytes on %02x\n", msgs[i].len,
-					msgs[i + 1].len, msgs[i].addr);
+			pr_debug("i2c write/read %d/%d bytes on %02x\n",
+				msgs[i].len, msgs[i + 1].len, msgs[i].addr);
 #endif
 			buf[0] = 0x01;
 			buf[1] = msgs[i].len + 1;
@@ -991,9 +990,8 @@ static int go7007_usb_i2c_master_xfer(struct i2c_adapter *adapter,
 			buf[buf_len++] = msgs[++i].len;
 		} else if (msgs[i].flags & I2C_M_RD) {
 #ifdef GO7007_I2C_DEBUG
-			pr_debug("i2c read %d "
-					"bytes on %02x\n", msgs[i].len,
-					msgs[i].addr);
+			pr_debug("i2c read %d bytes on %02x\n",
+					msgs[i].len, msgs[i].addr);
 #endif
 			buf[0] = 0x01;
 			buf[1] = 1;
@@ -1002,9 +1000,8 @@ static int go7007_usb_i2c_master_xfer(struct i2c_adapter *adapter,
 			buf_len = 4;
 		} else {
 #ifdef GO7007_I2C_DEBUG
-			pr_debug("i2c write %d "
-					"bytes on %02x\n", msgs[i].len,
-					msgs[i].addr);
+			pr_debug("i2c write %d bytes on %02x\n",
+					msgs[i].len, msgs[i].addr);
 #endif
 			buf[0] = 0x00;
 			buf[1] = msgs[i].len + 1;
@@ -1102,8 +1099,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 		board = &board_px_tv402u;
 		break;
 	case GO7007_BOARDID_LIFEVIEW_LR192:
-		pr_err("The Lifeview TV Walker Ultra "
-				"is not supported.  Sorry!\n");
+		pr_err("The Lifeview TV Walker Ultra is not supported. Sorry!\n");
 		return -ENODEV;
 		name = "Lifeview TV Walker Ultra";
 		board = &board_lifeview_lr192;
@@ -1253,8 +1249,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 					sizeof(go->name));
 			break;
 		default:
-			pr_debug("unable to detect "
-						"tuner type!\n");
+			pr_debug("unable to detect tuner type!\n");
 			break;
 		}
 		/* Configure tuner mode selection inputs connected
@@ -1270,11 +1265,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 	 * a USB1.1 port.  There will be silent corruption of the stream. */
 	if ((board->flags & GO7007_USB_EZUSB) &&
 			usbdev->speed != USB_SPEED_HIGH)
-		pr_err("*** WARNING ***  This device "
-				"must be connected to a USB 2.0 port!  "
-				"Attempting to capture video through a USB 1.1 "
-				"port will result in stream corruption, even "
-				"at low bitrates!\n");
+		pr_err("*** WARNING ***  This device must be connected to a USB 2.0 port! Attempting to capture video through a USB 1.1 port will result in stream corruption, even at low bitrates!\n");
 
 	/* Allocate the URBs and buffers for receiving the video stream */
 	if (board->flags & GO7007_USB_EZUSB) {
-- 
cgit 


From 7552d72a5c34a8d55037ce0c1a8cd8c3a7e86341 Mon Sep 17 00:00:00 2001
From: Valentina Manea <valentina.manea.m@gmail.com>
Date: Wed, 9 Oct 2013 22:29:17 +0300
Subject: staging: r8188eu: Fix sparse warnings regarding static functions

This fixes the following sparse warnings:
* drivers/staging/rtl8188eu/core/rtw_cmd.c:221:5: warning:
symbol 'rtw_cmd_filter' was not declared. Should it be static?
* drivers/staging/rtl8188eu/core/rtw_cmd.c:1670:6: warning:
symbol 'dynamic_chk_wk_hdl' was not declared. Should it be static?

Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/core/rtw_cmd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_cmd.c b/drivers/staging/rtl8188eu/core/rtw_cmd.c
index 06be02c79ce8..f45f4eddb741 100644
--- a/drivers/staging/rtl8188eu/core/rtw_cmd.c
+++ b/drivers/staging/rtl8188eu/core/rtw_cmd.c
@@ -218,7 +218,7 @@ _func_enter_;
 _func_exit_;
 }
 
-int rtw_cmd_filter(struct cmd_priv *pcmdpriv, struct cmd_obj *cmd_obj)
+static int rtw_cmd_filter(struct cmd_priv *pcmdpriv, struct cmd_obj *cmd_obj)
 {
 	u8 bAllow = false; /* set to true to allow enqueuing cmd when hw_init_completed is false */
 
@@ -1667,7 +1667,7 @@ static void traffic_status_watchdog(struct adapter *padapter)
 	pmlmepriv->LinkDetectInfo.bHigherBusyTxTraffic = bHigherBusyTxTraffic;
 }
 
-void dynamic_chk_wk_hdl(struct adapter *padapter, u8 *pbuf, int sz)
+static void dynamic_chk_wk_hdl(struct adapter *padapter, u8 *pbuf, int sz)
 {
 	struct mlme_priv *pmlmepriv;
 
-- 
cgit 


From 9eedd57e8b9dc35eeb4435f59789825c123cc7f1 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Thu, 10 Oct 2013 03:07:59 +0300
Subject: Staging: rtl8187se: fix avoid unnecessary line continuations in
 r8185b_init.c

Fix checkpatch.pl issues with avoid unnecessary line
continuations in r8185b_init.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Zach Brown <zab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/r8185b_init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8187se/r8185b_init.c b/drivers/staging/rtl8187se/r8185b_init.c
index 978dc5f4f929..8b5704a10692 100644
--- a/drivers/staging/rtl8187se/r8185b_init.c
+++ b/drivers/staging/rtl8187se/r8185b_init.c
@@ -1296,8 +1296,8 @@ void rtl8185b_rx_enable(struct net_device *dev)
 	if (dev->flags & IFF_PROMISC)
 		DMESG("NIC in promisc mode");
 
-	if (priv->ieee80211->iw_mode == IW_MODE_MONITOR || \
-	   dev->flags & IFF_PROMISC) {
+	if (priv->ieee80211->iw_mode == IW_MODE_MONITOR || dev->flags &
+	    IFF_PROMISC) {
 		priv->ReceiveConfig = priv->ReceiveConfig & (~RCR_APM);
 		priv->ReceiveConfig = priv->ReceiveConfig | RCR_AAP;
 	}
-- 
cgit 


From d83ce2ddb76c4a797121930262792e0d9c75e1d6 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Thu, 10 Oct 2013 03:08:00 +0300
Subject: Staging: rtl8187se: suspect code indent for conditional statements in
 r8185b_init.c

Fix checkpatch.pl issues with suspect code indent for
conditional statements in r8185b_init.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Zach Brown <zab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/r8185b_init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8187se/r8185b_init.c b/drivers/staging/rtl8187se/r8185b_init.c
index 8b5704a10692..43383cf8b161 100644
--- a/drivers/staging/rtl8187se/r8185b_init.c
+++ b/drivers/staging/rtl8187se/r8185b_init.c
@@ -135,7 +135,7 @@ static void PlatformIOWrite2Byte(struct net_device *dev, u32 offset, u16 data)
 static void PlatformIOWrite4Byte(struct net_device *dev, u32 offset, u32 data)
 {
 	if (offset == PhyAddr) {
-	/* For Base Band configuration. */
+		/* For Base Band configuration. */
 		unsigned char	cmdByte;
 		unsigned long	dataBytes;
 		unsigned char	idx;
@@ -155,7 +155,7 @@ static void PlatformIOWrite4Byte(struct net_device *dev, u32 offset, u32 data)
 		/* NdisAcquireSpinLock( &(pDevice->IoSpinLock) ); */
 
 		for (idx = 0; idx < 30; idx++) {
-		/* Make sure command bit is clear before access it. */
+			/* Make sure command bit is clear before access it. */
 			u1bTmp = PlatformIORead1Byte(dev, PhyAddr);
 			if ((u1bTmp & BIT7) == 0)
 				break;
-- 
cgit 


From d7c9fde4d4ac1782a2725cc8a978d4825fd6cfa9 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Thu, 10 Oct 2013 03:31:40 +0300
Subject: Staging: octeon: quoted string split across lines in ethernet-spi.c

Fix checkpatch.pl issues with quoted string split
across lines in ethernet-spi.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon/ethernet-spi.c | 92 ++++++++++++-----------------------
 1 file changed, 30 insertions(+), 62 deletions(-)

diff --git a/drivers/staging/octeon/ethernet-spi.c b/drivers/staging/octeon/ethernet-spi.c
index af8d62818f13..5108bc0bb573 100644
--- a/drivers/staging/octeon/ethernet-spi.c
+++ b/drivers/staging/octeon/ethernet-spi.c
@@ -64,31 +64,23 @@ static irqreturn_t cvm_oct_spi_rml_interrupt(int cpl, void *dev_id)
 			if (spx_int_reg.s.spf)
 				pr_err("SPI1: SRX Spi4 interface down\n");
 			if (spx_int_reg.s.calerr)
-				pr_err("SPI1: SRX Spi4 Calendar table "
-				       "parity error\n");
+				pr_err("SPI1: SRX Spi4 Calendar table parity error\n");
 			if (spx_int_reg.s.syncerr)
-				pr_err("SPI1: SRX Consecutive Spi4 DIP4 "
-				       "errors have exceeded "
-				       "SPX_ERR_CTL[ERRCNT]\n");
+				pr_err("SPI1: SRX Consecutive Spi4 DIP4 errors have exceeded SPX_ERR_CTL[ERRCNT]\n");
 			if (spx_int_reg.s.diperr)
 				pr_err("SPI1: SRX Spi4 DIP4 error\n");
 			if (spx_int_reg.s.tpaovr)
-				pr_err("SPI1: SRX Selected port has hit "
-				       "TPA overflow\n");
+				pr_err("SPI1: SRX Selected port has hit TPA overflow\n");
 			if (spx_int_reg.s.rsverr)
-				pr_err("SPI1: SRX Spi4 reserved control "
-				       "word detected\n");
+				pr_err("SPI1: SRX Spi4 reserved control word detected\n");
 			if (spx_int_reg.s.drwnng)
-				pr_err("SPI1: SRX Spi4 receive FIFO "
-				       "drowning/overflow\n");
+				pr_err("SPI1: SRX Spi4 receive FIFO drowning/overflow\n");
 			if (spx_int_reg.s.clserr)
-				pr_err("SPI1: SRX Spi4 packet closed on "
-				       "non-16B alignment without EOP\n");
+				pr_err("SPI1: SRX Spi4 packet closed on non-16B alignment without EOP\n");
 			if (spx_int_reg.s.spiovr)
 				pr_err("SPI1: SRX Spi4 async FIFO overflow\n");
 			if (spx_int_reg.s.abnorm)
-				pr_err("SPI1: SRX Abnormal packet "
-				       "termination (ERR bit)\n");
+				pr_err("SPI1: SRX Abnormal packet termination (ERR bit)\n");
 			if (spx_int_reg.s.prtnxa)
 				pr_err("SPI1: SRX Port out of range\n");
 		}
@@ -99,31 +91,23 @@ static irqreturn_t cvm_oct_spi_rml_interrupt(int cpl, void *dev_id)
 
 			stx_int_reg.u64 &= cvmx_read_csr(CVMX_STXX_INT_MSK(1));
 			if (stx_int_reg.s.syncerr)
-				pr_err("SPI1: STX Interface encountered a "
-				       "fatal error\n");
+				pr_err("SPI1: STX Interface encountered a fatal error\n");
 			if (stx_int_reg.s.frmerr)
-				pr_err("SPI1: STX FRMCNT has exceeded "
-				       "STX_DIP_CNT[MAXFRM]\n");
+				pr_err("SPI1: STX FRMCNT has exceeded STX_DIP_CNT[MAXFRM]\n");
 			if (stx_int_reg.s.unxfrm)
-				pr_err("SPI1: STX Unexpected framing "
-				       "sequence\n");
+				pr_err("SPI1: STX Unexpected framing sequence\n");
 			if (stx_int_reg.s.nosync)
-				pr_err("SPI1: STX ERRCNT has exceeded "
-				       "STX_DIP_CNT[MAXDIP]\n");
+				pr_err("SPI1: STX ERRCNT has exceeded STX_DIP_CNT[MAXDIP]\n");
 			if (stx_int_reg.s.diperr)
-				pr_err("SPI1: STX DIP2 error on the Spi4 "
-				       "Status channel\n");
+				pr_err("SPI1: STX DIP2 error on the Spi4 Status channel\n");
 			if (stx_int_reg.s.datovr)
 				pr_err("SPI1: STX Spi4 FIFO overflow error\n");
 			if (stx_int_reg.s.ovrbst)
-				pr_err("SPI1: STX Transmit packet burst "
-				       "too big\n");
+				pr_err("SPI1: STX Transmit packet burst too big\n");
 			if (stx_int_reg.s.calpar1)
-				pr_err("SPI1: STX Calendar Table Parity "
-				       "Error Bank1\n");
+				pr_err("SPI1: STX Calendar Table Parity Error Bank1\n");
 			if (stx_int_reg.s.calpar0)
-				pr_err("SPI1: STX Calendar Table Parity "
-				       "Error Bank0\n");
+				pr_err("SPI1: STX Calendar Table Parity Error Bank0\n");
 		}
 
 		cvmx_write_csr(CVMX_SPXX_INT_MSK(1), 0);
@@ -144,31 +128,23 @@ static irqreturn_t cvm_oct_spi_rml_interrupt(int cpl, void *dev_id)
 			if (spx_int_reg.s.spf)
 				pr_err("SPI0: SRX Spi4 interface down\n");
 			if (spx_int_reg.s.calerr)
-				pr_err("SPI0: SRX Spi4 Calendar table "
-				       "parity error\n");
+				pr_err("SPI0: SRX Spi4 Calendar table parity error\n");
 			if (spx_int_reg.s.syncerr)
-				pr_err("SPI0: SRX Consecutive Spi4 DIP4 "
-				       "errors have exceeded "
-				       "SPX_ERR_CTL[ERRCNT]\n");
+				pr_err("SPI0: SRX Consecutive Spi4 DIP4 errors have exceeded SPX_ERR_CTL[ERRCNT]\n");
 			if (spx_int_reg.s.diperr)
 				pr_err("SPI0: SRX Spi4 DIP4 error\n");
 			if (spx_int_reg.s.tpaovr)
-				pr_err("SPI0: SRX Selected port has hit "
-				       "TPA overflow\n");
+				pr_err("SPI0: SRX Selected port has hit TPA overflow\n");
 			if (spx_int_reg.s.rsverr)
-				pr_err("SPI0: SRX Spi4 reserved control "
-				       "word detected\n");
+				pr_err("SPI0: SRX Spi4 reserved control word detected\n");
 			if (spx_int_reg.s.drwnng)
-				pr_err("SPI0: SRX Spi4 receive FIFO "
-				       "drowning/overflow\n");
+				pr_err("SPI0: SRX Spi4 receive FIFO drowning/overflow\n");
 			if (spx_int_reg.s.clserr)
-				pr_err("SPI0: SRX Spi4 packet closed on "
-				       "non-16B alignment without EOP\n");
+				pr_err("SPI0: SRX Spi4 packet closed on non-16B alignment without EOP\n");
 			if (spx_int_reg.s.spiovr)
 				pr_err("SPI0: SRX Spi4 async FIFO overflow\n");
 			if (spx_int_reg.s.abnorm)
-				pr_err("SPI0: SRX Abnormal packet "
-				       "termination (ERR bit)\n");
+				pr_err("SPI0: SRX Abnormal packet termination (ERR bit)\n");
 			if (spx_int_reg.s.prtnxa)
 				pr_err("SPI0: SRX Port out of range\n");
 		}
@@ -179,31 +155,23 @@ static irqreturn_t cvm_oct_spi_rml_interrupt(int cpl, void *dev_id)
 
 			stx_int_reg.u64 &= cvmx_read_csr(CVMX_STXX_INT_MSK(0));
 			if (stx_int_reg.s.syncerr)
-				pr_err("SPI0: STX Interface encountered a "
-				       "fatal error\n");
+				pr_err("SPI0: STX Interface encountered a fatal error\n");
 			if (stx_int_reg.s.frmerr)
-				pr_err("SPI0: STX FRMCNT has exceeded "
-				       "STX_DIP_CNT[MAXFRM]\n");
+				pr_err("SPI0: STX FRMCNT has exceeded STX_DIP_CNT[MAXFRM]\n");
 			if (stx_int_reg.s.unxfrm)
-				pr_err("SPI0: STX Unexpected framing "
-				       "sequence\n");
+				pr_err("SPI0: STX Unexpected framing sequence\n");
 			if (stx_int_reg.s.nosync)
-				pr_err("SPI0: STX ERRCNT has exceeded "
-				       "STX_DIP_CNT[MAXDIP]\n");
+				pr_err("SPI0: STX ERRCNT has exceeded STX_DIP_CNT[MAXDIP]\n");
 			if (stx_int_reg.s.diperr)
-				pr_err("SPI0: STX DIP2 error on the Spi4 "
-				       "Status channel\n");
+				pr_err("SPI0: STX DIP2 error on the Spi4 Status channel\n");
 			if (stx_int_reg.s.datovr)
 				pr_err("SPI0: STX Spi4 FIFO overflow error\n");
 			if (stx_int_reg.s.ovrbst)
-				pr_err("SPI0: STX Transmit packet burst "
-				       "too big\n");
+				pr_err("SPI0: STX Transmit packet burst too big\n");
 			if (stx_int_reg.s.calpar1)
-				pr_err("SPI0: STX Calendar Table Parity "
-				       "Error Bank1\n");
+				pr_err("SPI0: STX Calendar Table Parity Error Bank1\n");
 			if (stx_int_reg.s.calpar0)
-				pr_err("SPI0: STX Calendar Table Parity "
-				       "Error Bank0\n");
+				pr_err("SPI0: STX Calendar Table Parity Error Bank0\n");
 		}
 
 		cvmx_write_csr(CVMX_SPXX_INT_MSK(0), 0);
-- 
cgit 


From 6b478c2c38fc2f379e7b4c3ef5e9432d8ca887b9 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Thu, 10 Oct 2013 04:02:29 +0300
Subject: Staging: octeon: fix quoted string split across lines in
 ethernet-tx.c

Fix checkpatch.pl issues with quoted string split
across lines in ethernet-tx.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon/ethernet-tx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/octeon/ethernet-tx.c b/drivers/staging/octeon/ethernet-tx.c
index dbfef1a05176..5b7f04ebd3fe 100644
--- a/drivers/staging/octeon/ethernet-tx.c
+++ b/drivers/staging/octeon/ethernet-tx.c
@@ -527,8 +527,8 @@ int cvm_oct_xmit_pow(struct sk_buff *skb, struct net_device *dev)
 	/* Get a work queue entry */
 	cvmx_wqe_t *work = cvmx_fpa_alloc(CVMX_FPA_WQE_POOL);
 	if (unlikely(work == NULL)) {
-		printk_ratelimited("%s: Failed to allocate a work "
-				   "queue entry\n", dev->name);
+		printk_ratelimited("%s: Failed to allocate a work queue entry\n",
+				   dev->name);
 		priv->stats.tx_dropped++;
 		dev_kfree_skb(skb);
 		return 0;
-- 
cgit 


From a012649d6b6ddba8a66262b53a2f7523de6b0113 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Thu, 10 Oct 2013 04:02:30 +0300
Subject: Staging: octeon: fix line over 80 characters in ethernet-tx.c

Fix checkpatch.pl issues with line over 80
characters in ethernet-tx.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon/ethernet-tx.c | 65 +++++++++++++++++++++++++-----------
 1 file changed, 45 insertions(+), 20 deletions(-)

diff --git a/drivers/staging/octeon/ethernet-tx.c b/drivers/staging/octeon/ethernet-tx.c
index 5b7f04ebd3fe..9b4d0b546b89 100644
--- a/drivers/staging/octeon/ethernet-tx.c
+++ b/drivers/staging/octeon/ethernet-tx.c
@@ -78,10 +78,12 @@ static DECLARE_TASKLET(cvm_oct_tx_cleanup_tasklet, cvm_oct_tx_do_cleanup, 0);
 static inline int32_t cvm_oct_adjust_skb_to_free(int32_t skb_to_free, int fau)
 {
 	int32_t undo;
-	undo = skb_to_free > 0 ? MAX_SKB_TO_FREE : skb_to_free + MAX_SKB_TO_FREE;
+	undo = skb_to_free > 0 ? MAX_SKB_TO_FREE : skb_to_free +
+						   MAX_SKB_TO_FREE;
 	if (undo > 0)
 		cvmx_fau_atomic_add32(fau, -undo);
-	skb_to_free = -skb_to_free > MAX_SKB_TO_FREE ? MAX_SKB_TO_FREE : -skb_to_free;
+	skb_to_free = -skb_to_free > MAX_SKB_TO_FREE ? MAX_SKB_TO_FREE :
+						       -skb_to_free;
 	return skb_to_free;
 }
 
@@ -108,8 +110,10 @@ void cvm_oct_free_tx_skbs(struct net_device *dev)
 	for (qos = 0; qos < queues_per_port; qos++) {
 		if (skb_queue_len(&priv->tx_free_list[qos]) == 0)
 			continue;
-		skb_to_free = cvmx_fau_fetch_and_add32(priv->fau+qos*4, MAX_SKB_TO_FREE);
-		skb_to_free = cvm_oct_adjust_skb_to_free(skb_to_free, priv->fau+qos*4);
+		skb_to_free = cvmx_fau_fetch_and_add32(priv->fau+qos*4,
+						       MAX_SKB_TO_FREE);
+		skb_to_free = cvm_oct_adjust_skb_to_free(skb_to_free,
+							 priv->fau+qos*4);
 
 
 		total_freed += skb_to_free;
@@ -117,12 +121,14 @@ void cvm_oct_free_tx_skbs(struct net_device *dev)
 			struct sk_buff *to_free_list = NULL;
 			spin_lock_irqsave(&priv->tx_free_list[qos].lock, flags);
 			while (skb_to_free > 0) {
-				struct sk_buff *t = __skb_dequeue(&priv->tx_free_list[qos]);
+				struct sk_buff *t;
+				t = __skb_dequeue(&priv->tx_free_list[qos]);
 				t->next = to_free_list;
 				to_free_list = t;
 				skb_to_free--;
 			}
-			spin_unlock_irqrestore(&priv->tx_free_list[qos].lock, flags);
+			spin_unlock_irqrestore(&priv->tx_free_list[qos].lock,
+					       flags);
 			/* Do the actual freeing outside of the lock. */
 			while (to_free_list) {
 				struct sk_buff *t = to_free_list;
@@ -211,15 +217,23 @@ int cvm_oct_xmit(struct sk_buff *skb, struct net_device *dev)
 		if (unlikely(__skb_linearize(skb))) {
 			queue_type = QUEUE_DROP;
 			if (USE_ASYNC_IOBDMA) {
-				/* Get the number of skbuffs in use by the hardware */
+				/*
+				 * Get the number of skbuffs in use
+				 * by the hardware
+				 */
 				CVMX_SYNCIOBDMA;
-				skb_to_free = cvmx_scratch_read64(CVMX_SCR_SCRATCH);
+				skb_to_free =
+					cvmx_scratch_read64(CVMX_SCR_SCRATCH);
 			} else {
-				/* Get the number of skbuffs in use by the hardware */
-				skb_to_free = cvmx_fau_fetch_and_add32(priv->fau + qos * 4,
-								       MAX_SKB_TO_FREE);
+				/*
+				 * Get the number of skbuffs in use
+				 * by the hardware
+				 */
+				skb_to_free = cvmx_fau_fetch_and_add32(
+					priv->fau + qos * 4, MAX_SKB_TO_FREE);
 			}
-			skb_to_free = cvm_oct_adjust_skb_to_free(skb_to_free, priv->fau + qos * 4);
+			skb_to_free = cvm_oct_adjust_skb_to_free(skb_to_free,
+							priv->fau + qos * 4);
 			spin_lock_irqsave(&priv->tx_free_list[qos].lock, flags);
 			goto skip_xmit;
 		}
@@ -276,7 +290,9 @@ int cvm_oct_xmit(struct sk_buff *skb, struct net_device *dev)
 		CVM_OCT_SKB_CB(skb)[0] = hw_buffer.u64;
 		for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
 			struct skb_frag_struct *fs = skb_shinfo(skb)->frags + i;
-			hw_buffer.s.addr = XKPHYS_TO_PHYS((u64)(page_address(fs->page.p) + fs->page_offset));
+			hw_buffer.s.addr = XKPHYS_TO_PHYS(
+				(u64)(page_address(fs->page.p) +
+				fs->page_offset));
 			hw_buffer.s.size = fs->size;
 			CVM_OCT_SKB_CB(skb)[i + 1] = hw_buffer.u64;
 		}
@@ -358,7 +374,9 @@ int cvm_oct_xmit(struct sk_buff *skb, struct net_device *dev)
 	 */
 	pko_command.s.dontfree = 0;
 
-	hw_buffer.s.back = ((unsigned long)skb->data >> 7) - ((unsigned long)fpa_head >> 7);
+	hw_buffer.s.back = ((unsigned long)skb->data >> 7) -
+			   ((unsigned long)fpa_head >> 7);
+
 	*(struct sk_buff **)(fpa_head - sizeof(void *)) = skb;
 
 	/*
@@ -422,17 +440,22 @@ dont_put_skbuff_in_hw:
 		queue_type = QUEUE_HW;
 	}
 	if (USE_ASYNC_IOBDMA)
-		cvmx_fau_async_fetch_and_add32(CVMX_SCR_SCRATCH, FAU_TOTAL_TX_TO_CLEAN, 1);
+		cvmx_fau_async_fetch_and_add32(
+				CVMX_SCR_SCRATCH, FAU_TOTAL_TX_TO_CLEAN, 1);
 
 	spin_lock_irqsave(&priv->tx_free_list[qos].lock, flags);
 
 	/* Drop this packet if we have too many already queued to the HW */
-	if (unlikely(skb_queue_len(&priv->tx_free_list[qos]) >= MAX_OUT_QUEUE_DEPTH)) {
+	if (unlikely(skb_queue_len(&priv->tx_free_list[qos]) >=
+		     MAX_OUT_QUEUE_DEPTH)) {
+
 		if (dev->tx_queue_len != 0) {
 			/* Drop the lock when notifying the core.  */
-			spin_unlock_irqrestore(&priv->tx_free_list[qos].lock, flags);
+			spin_unlock_irqrestore(&priv->tx_free_list[qos].lock,
+					       flags);
 			netif_stop_queue(dev);
-			spin_lock_irqsave(&priv->tx_free_list[qos].lock, flags);
+			spin_lock_irqsave(&priv->tx_free_list[qos].lock,
+					  flags);
 		} else {
 			/* If not using normal queueing.  */
 			queue_type = QUEUE_DROP;
@@ -448,7 +471,8 @@ dont_put_skbuff_in_hw:
 						 priv->queue + qos,
 						 pko_command, hw_buffer,
 						 CVMX_PKO_LOCK_NONE))) {
-		printk_ratelimited("%s: Failed to send the packet\n", dev->name);
+		printk_ratelimited("%s: Failed to send the packet\n",
+				   dev->name);
 		queue_type = QUEUE_DROP;
 	}
 skip_xmit:
@@ -493,7 +517,8 @@ skip_xmit:
 		cvmx_scratch_write64(CVMX_SCR_SCRATCH, old_scratch);
 		cvmx_scratch_write64(CVMX_SCR_SCRATCH + 8, old_scratch2);
 	} else {
-		total_to_clean = cvmx_fau_fetch_and_add32(FAU_TOTAL_TX_TO_CLEAN, 1);
+		total_to_clean = cvmx_fau_fetch_and_add32(
+						FAU_TOTAL_TX_TO_CLEAN, 1);
 	}
 
 	if (total_to_clean & 0x3ff) {
-- 
cgit 


From 50886656a8613d4c56daf438f6a7612d6cd6c321 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Thu, 10 Oct 2013 14:54:12 +0300
Subject: Staging: sm7xxfb: fix line over 80 characters in sm7xxfb.c

Fix checkpatch.pl issues with line over 80 characters
in sm7xxfb.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/sm7xxfb/sm7xxfb.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/sm7xxfb/sm7xxfb.c b/drivers/staging/sm7xxfb/sm7xxfb.c
index 6037ec180d90..ba199ffff178 100644
--- a/drivers/staging/sm7xxfb/sm7xxfb.c
+++ b/drivers/staging/sm7xxfb/sm7xxfb.c
@@ -130,7 +130,8 @@ static int __init sm7xx_vga_setup(char *options)
 	for (i = 0; i < ARRAY_SIZE(vesa_mode_table); i++) {
 		if (strstr(options, vesa_mode_table[i].index)) {
 			smtc_scr_info.lfb_width  = vesa_mode_table[i].lfb_width;
-			smtc_scr_info.lfb_height = vesa_mode_table[i].lfb_height;
+			smtc_scr_info.lfb_height =
+						vesa_mode_table[i].lfb_height;
 			smtc_scr_info.lfb_depth  = vesa_mode_table[i].lfb_depth;
 			return 0;
 		}
-- 
cgit 


From ccdbb6e96beca362db876d820ac1e560ff6d9579 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 10 Oct 2013 08:43:00 -0700
Subject: tcp: tcp_transmit_skb() optimizations

1) We need to take a timestamp only for skb that should be cloned.

Other skbs are not in write queue and no rtt estimation is done on them.

2) the unlikely() hint is wrong for receivers (they send pure ACK)

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: MF Nowlan <fitz@cs.yale.edu>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Acked-By: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/tcp_output.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 2822ad021a48..e5ce0e1d13b7 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -850,15 +850,15 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
 
 	BUG_ON(!skb || !tcp_skb_pcount(skb));
 
-	/* If congestion control is doing timestamping, we must
-	 * take such a timestamp before we potentially clone/copy.
-	 */
-	if (icsk->icsk_ca_ops->flags & TCP_CONG_RTT_STAMP)
-		__net_timestamp(skb);
-
-	if (likely(clone_it)) {
+	if (clone_it) {
 		const struct sk_buff *fclone = skb + 1;
 
+		/* If congestion control is doing timestamping, we must
+		 * take such a timestamp before we potentially clone/copy.
+		 */
+		if (icsk->icsk_ca_ops->flags & TCP_CONG_RTT_STAMP)
+			__net_timestamp(skb);
+
 		if (unlikely(skb->fclone == SKB_FCLONE_ORIG &&
 			     fclone->fclone == SKB_FCLONE_CLONE))
 			NET_INC_STATS_BH(sock_net(sk),
-- 
cgit 


From 5bd8e16de3b88f7d61cb508b096474cc8aa8eefb Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 3 Oct 2013 12:49:42 -0700
Subject: ARM: clps711x: Use linux/sched_clock.h

The sched_clock.h include is under include/linux now.

Cc: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
---
 arch/arm/mach-clps711x/common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-clps711x/common.c b/arch/arm/mach-clps711x/common.c
index 4ca2f3ca2de4..134641d688bb 100644
--- a/arch/arm/mach-clps711x/common.c
+++ b/arch/arm/mach-clps711x/common.c
@@ -29,12 +29,12 @@
 #include <linux/clockchips.h>
 #include <linux/clocksource.h>
 #include <linux/clk-provider.h>
+#include <linux/sched_clock.h>
 
 #include <asm/exception.h>
 #include <asm/mach/irq.h>
 #include <asm/mach/map.h>
 #include <asm/mach/time.h>
-#include <asm/sched_clock.h>
 #include <asm/system_misc.h>
 
 #include <mach/hardware.h>
-- 
cgit 


From 9485099209d8057c4b6857855cc15334ae84d1c2 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Thu, 3 Oct 2013 12:49:43 -0700
Subject: ARM: Remove temporary sched_clock.h header

This header file is no longer needed now that the ARM sched_clock
framework is generic and all users have moved to linux/sched_clock.h
instead of asm/sched_clock.h. Remove it.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
---
 arch/arm/include/asm/sched_clock.h | 4 ----
 1 file changed, 4 deletions(-)
 delete mode 100644 arch/arm/include/asm/sched_clock.h

diff --git a/arch/arm/include/asm/sched_clock.h b/arch/arm/include/asm/sched_clock.h
deleted file mode 100644
index 2389b71a8e7c..000000000000
--- a/arch/arm/include/asm/sched_clock.h
+++ /dev/null
@@ -1,4 +0,0 @@
-/* You shouldn't include this file. Use linux/sched_clock.h instead.
- * Temporary file until all asm/sched_clock.h users are gone
- */
-#include <linux/sched_clock.h>
-- 
cgit 


From 1e2d9cdfb4494fce682b4ae010d86a2766816d36 Mon Sep 17 00:00:00 2001
From: Lan Tianyu <tianyu.lan@intel.com>
Date: Fri, 11 Oct 2013 09:54:08 +0800
Subject: ACPI / Battery: Remove battery's proc directory

The battery's proc directory isn't useded and remove it.

Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/battery.c | 328 +------------------------------------------------
 1 file changed, 1 insertion(+), 327 deletions(-)

diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 2c9958cd7a43..fbf1aceda8b8 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -36,12 +36,6 @@
 #include <linux/suspend.h>
 #include <asm/unaligned.h>
 
-#ifdef CONFIG_ACPI_PROCFS_POWER
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <asm/uaccess.h>
-#endif
-
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
 #include <linux/power_supply.h>
@@ -72,19 +66,6 @@ static unsigned int cache_time = 1000;
 module_param(cache_time, uint, 0644);
 MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
 
-#ifdef CONFIG_ACPI_PROCFS_POWER
-extern struct proc_dir_entry *acpi_lock_battery_dir(void);
-extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
-
-enum acpi_battery_files {
-	info_tag = 0,
-	state_tag,
-	alarm_tag,
-	ACPI_BATTERY_NUMFILES,
-};
-
-#endif
-
 static const struct acpi_device_id battery_device_ids[] = {
 	{"PNP0C0A", 0},
 	{"", 0},
@@ -320,14 +301,6 @@ static enum power_supply_property energy_battery_props[] = {
 	POWER_SUPPLY_PROP_SERIAL_NUMBER,
 };
 
-#ifdef CONFIG_ACPI_PROCFS_POWER
-inline char *acpi_battery_units(struct acpi_battery *battery)
-{
-	return (battery->power_unit == ACPI_BATTERY_POWER_UNIT_MA) ?
-		"mA" : "mW";
-}
-#endif
-
 /* --------------------------------------------------------------------------
                                Battery Management
    -------------------------------------------------------------------------- */
@@ -740,279 +713,6 @@ static void acpi_battery_refresh(struct acpi_battery *battery)
 	sysfs_add_battery(battery);
 }
 
-/* --------------------------------------------------------------------------
-                              FS Interface (/proc)
-   -------------------------------------------------------------------------- */
-
-#ifdef CONFIG_ACPI_PROCFS_POWER
-static struct proc_dir_entry *acpi_battery_dir;
-
-static int acpi_battery_print_info(struct seq_file *seq, int result)
-{
-	struct acpi_battery *battery = seq->private;
-
-	if (result)
-		goto end;
-
-	seq_printf(seq, "present:                 %s\n",
-		   acpi_battery_present(battery) ? "yes" : "no");
-	if (!acpi_battery_present(battery))
-		goto end;
-	if (battery->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
-		seq_printf(seq, "design capacity:         unknown\n");
-	else
-		seq_printf(seq, "design capacity:         %d %sh\n",
-			   battery->design_capacity,
-			   acpi_battery_units(battery));
-
-	if (battery->full_charge_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
-		seq_printf(seq, "last full capacity:      unknown\n");
-	else
-		seq_printf(seq, "last full capacity:      %d %sh\n",
-			   battery->full_charge_capacity,
-			   acpi_battery_units(battery));
-
-	seq_printf(seq, "battery technology:      %srechargeable\n",
-		   (!battery->technology)?"non-":"");
-
-	if (battery->design_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
-		seq_printf(seq, "design voltage:          unknown\n");
-	else
-		seq_printf(seq, "design voltage:          %d mV\n",
-			   battery->design_voltage);
-	seq_printf(seq, "design capacity warning: %d %sh\n",
-		   battery->design_capacity_warning,
-		   acpi_battery_units(battery));
-	seq_printf(seq, "design capacity low:     %d %sh\n",
-		   battery->design_capacity_low,
-		   acpi_battery_units(battery));
-	seq_printf(seq, "cycle count:		  %i\n", battery->cycle_count);
-	seq_printf(seq, "capacity granularity 1:  %d %sh\n",
-		   battery->capacity_granularity_1,
-		   acpi_battery_units(battery));
-	seq_printf(seq, "capacity granularity 2:  %d %sh\n",
-		   battery->capacity_granularity_2,
-		   acpi_battery_units(battery));
-	seq_printf(seq, "model number:            %s\n", battery->model_number);
-	seq_printf(seq, "serial number:           %s\n", battery->serial_number);
-	seq_printf(seq, "battery type:            %s\n", battery->type);
-	seq_printf(seq, "OEM info:                %s\n", battery->oem_info);
-      end:
-	if (result)
-		seq_printf(seq, "ERROR: Unable to read battery info\n");
-	return result;
-}
-
-static int acpi_battery_print_state(struct seq_file *seq, int result)
-{
-	struct acpi_battery *battery = seq->private;
-
-	if (result)
-		goto end;
-
-	seq_printf(seq, "present:                 %s\n",
-		   acpi_battery_present(battery) ? "yes" : "no");
-	if (!acpi_battery_present(battery))
-		goto end;
-
-	seq_printf(seq, "capacity state:          %s\n",
-			(battery->state & 0x04) ? "critical" : "ok");
-	if ((battery->state & 0x01) && (battery->state & 0x02))
-		seq_printf(seq,
-			   "charging state:          charging/discharging\n");
-	else if (battery->state & 0x01)
-		seq_printf(seq, "charging state:          discharging\n");
-	else if (battery->state & 0x02)
-		seq_printf(seq, "charging state:          charging\n");
-	else
-		seq_printf(seq, "charging state:          charged\n");
-
-	if (battery->rate_now == ACPI_BATTERY_VALUE_UNKNOWN)
-		seq_printf(seq, "present rate:            unknown\n");
-	else
-		seq_printf(seq, "present rate:            %d %s\n",
-			   battery->rate_now, acpi_battery_units(battery));
-
-	if (battery->capacity_now == ACPI_BATTERY_VALUE_UNKNOWN)
-		seq_printf(seq, "remaining capacity:      unknown\n");
-	else
-		seq_printf(seq, "remaining capacity:      %d %sh\n",
-			   battery->capacity_now, acpi_battery_units(battery));
-	if (battery->voltage_now == ACPI_BATTERY_VALUE_UNKNOWN)
-		seq_printf(seq, "present voltage:         unknown\n");
-	else
-		seq_printf(seq, "present voltage:         %d mV\n",
-			   battery->voltage_now);
-      end:
-	if (result)
-		seq_printf(seq, "ERROR: Unable to read battery state\n");
-
-	return result;
-}
-
-static int acpi_battery_print_alarm(struct seq_file *seq, int result)
-{
-	struct acpi_battery *battery = seq->private;
-
-	if (result)
-		goto end;
-
-	if (!acpi_battery_present(battery)) {
-		seq_printf(seq, "present:                 no\n");
-		goto end;
-	}
-	seq_printf(seq, "alarm:                   ");
-	if (!battery->alarm)
-		seq_printf(seq, "unsupported\n");
-	else
-		seq_printf(seq, "%u %sh\n", battery->alarm,
-				acpi_battery_units(battery));
-      end:
-	if (result)
-		seq_printf(seq, "ERROR: Unable to read battery alarm\n");
-	return result;
-}
-
-static ssize_t acpi_battery_write_alarm(struct file *file,
-					const char __user * buffer,
-					size_t count, loff_t * ppos)
-{
-	int result = 0;
-	char alarm_string[12] = { '\0' };
-	struct seq_file *m = file->private_data;
-	struct acpi_battery *battery = m->private;
-
-	if (!battery || (count > sizeof(alarm_string) - 1))
-		return -EINVAL;
-	if (!acpi_battery_present(battery)) {
-		result = -ENODEV;
-		goto end;
-	}
-	if (copy_from_user(alarm_string, buffer, count)) {
-		result = -EFAULT;
-		goto end;
-	}
-	alarm_string[count] = '\0';
-	battery->alarm = simple_strtol(alarm_string, NULL, 0);
-	result = acpi_battery_set_alarm(battery);
-      end:
-	if (!result)
-		return count;
-	return result;
-}
-
-typedef int(*print_func)(struct seq_file *seq, int result);
-
-static print_func acpi_print_funcs[ACPI_BATTERY_NUMFILES] = {
-	acpi_battery_print_info,
-	acpi_battery_print_state,
-	acpi_battery_print_alarm,
-};
-
-static int acpi_battery_read(int fid, struct seq_file *seq)
-{
-	struct acpi_battery *battery = seq->private;
-	int result = acpi_battery_update(battery);
-	return acpi_print_funcs[fid](seq, result);
-}
-
-#define DECLARE_FILE_FUNCTIONS(_name) \
-static int acpi_battery_read_##_name(struct seq_file *seq, void *offset) \
-{ \
-	return acpi_battery_read(_name##_tag, seq); \
-} \
-static int acpi_battery_##_name##_open_fs(struct inode *inode, struct file *file) \
-{ \
-	return single_open(file, acpi_battery_read_##_name, PDE_DATA(inode)); \
-}
-
-DECLARE_FILE_FUNCTIONS(info);
-DECLARE_FILE_FUNCTIONS(state);
-DECLARE_FILE_FUNCTIONS(alarm);
-
-#undef DECLARE_FILE_FUNCTIONS
-
-#define FILE_DESCRIPTION_RO(_name) \
-	{ \
-	.name = __stringify(_name), \
-	.mode = S_IRUGO, \
-	.ops = { \
-		.open = acpi_battery_##_name##_open_fs, \
-		.read = seq_read, \
-		.llseek = seq_lseek, \
-		.release = single_release, \
-		.owner = THIS_MODULE, \
-		}, \
-	}
-
-#define FILE_DESCRIPTION_RW(_name) \
-	{ \
-	.name = __stringify(_name), \
-	.mode = S_IFREG | S_IRUGO | S_IWUSR, \
-	.ops = { \
-		.open = acpi_battery_##_name##_open_fs, \
-		.read = seq_read, \
-		.llseek = seq_lseek, \
-		.write = acpi_battery_write_##_name, \
-		.release = single_release, \
-		.owner = THIS_MODULE, \
-		}, \
-	}
-
-static const struct battery_file {
-	struct file_operations ops;
-	umode_t mode;
-	const char *name;
-} acpi_battery_file[] = {
-	FILE_DESCRIPTION_RO(info),
-	FILE_DESCRIPTION_RO(state),
-	FILE_DESCRIPTION_RW(alarm),
-};
-
-#undef FILE_DESCRIPTION_RO
-#undef FILE_DESCRIPTION_RW
-
-static int acpi_battery_add_fs(struct acpi_device *device)
-{
-	struct proc_dir_entry *entry = NULL;
-	int i;
-
-	printk(KERN_WARNING PREFIX "Deprecated procfs I/F for battery is loaded,"
-			" please retry with CONFIG_ACPI_PROCFS_POWER cleared\n");
-	if (!acpi_device_dir(device)) {
-		acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
-						     acpi_battery_dir);
-		if (!acpi_device_dir(device))
-			return -ENODEV;
-	}
-
-	for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) {
-		entry = proc_create_data(acpi_battery_file[i].name,
-					 acpi_battery_file[i].mode,
-					 acpi_device_dir(device),
-					 &acpi_battery_file[i].ops,
-					 acpi_driver_data(device));
-		if (!entry)
-			return -ENODEV;
-	}
-	return 0;
-}
-
-static void acpi_battery_remove_fs(struct acpi_device *device)
-{
-	int i;
-	if (!acpi_device_dir(device))
-		return;
-	for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i)
-		remove_proc_entry(acpi_battery_file[i].name,
-				  acpi_device_dir(device));
-
-	remove_proc_entry(acpi_device_bid(device), acpi_battery_dir);
-	acpi_device_dir(device) = NULL;
-}
-
-#endif
-
 /* --------------------------------------------------------------------------
                                  Driver Interface
    -------------------------------------------------------------------------- */
@@ -1075,15 +775,6 @@ static int acpi_battery_add(struct acpi_device *device)
 	result = acpi_battery_update(battery);
 	if (result)
 		goto fail;
-#ifdef CONFIG_ACPI_PROCFS_POWER
-	result = acpi_battery_add_fs(device);
-#endif
-	if (result) {
-#ifdef CONFIG_ACPI_PROCFS_POWER
-		acpi_battery_remove_fs(device);
-#endif
-		goto fail;
-	}
 
 	printk(KERN_INFO PREFIX "%s Slot [%s] (battery %s)\n",
 		ACPI_BATTERY_DEVICE_NAME, acpi_device_bid(device),
@@ -1110,9 +801,6 @@ static int acpi_battery_remove(struct acpi_device *device)
 		return -EINVAL;
 	battery = acpi_driver_data(device);
 	unregister_pm_notifier(&battery->pm_nb);
-#ifdef CONFIG_ACPI_PROCFS_POWER
-	acpi_battery_remove_fs(device);
-#endif
 	sysfs_remove_battery(battery);
 	mutex_destroy(&battery->lock);
 	mutex_destroy(&battery->sysfs_lock);
@@ -1158,18 +846,7 @@ static void __init acpi_battery_init_async(void *unused, async_cookie_t cookie)
 {
 	if (acpi_disabled)
 		return;
-#ifdef CONFIG_ACPI_PROCFS_POWER
-	acpi_battery_dir = acpi_lock_battery_dir();
-	if (!acpi_battery_dir)
-		return;
-#endif
-	if (acpi_bus_register_driver(&acpi_battery_driver) < 0) {
-#ifdef CONFIG_ACPI_PROCFS_POWER
-		acpi_unlock_battery_dir(acpi_battery_dir);
-#endif
-		return;
-	}
-	return;
+	acpi_bus_register_driver(&acpi_battery_driver);
 }
 
 static int __init acpi_battery_init(void)
@@ -1181,9 +858,6 @@ static int __init acpi_battery_init(void)
 static void __exit acpi_battery_exit(void)
 {
 	acpi_bus_unregister_driver(&acpi_battery_driver);
-#ifdef CONFIG_ACPI_PROCFS_POWER
-	acpi_unlock_battery_dir(acpi_battery_dir);
-#endif
 }
 
 module_init(acpi_battery_init);
-- 
cgit 


From 2a68b995c8d5d36de50fd2a7c9c594d986f04c87 Mon Sep 17 00:00:00 2001
From: Lan Tianyu <tianyu.lan@intel.com>
Date: Fri, 11 Oct 2013 09:54:09 +0800
Subject: ACPI / SBS: Remove SBS's proc directory

SBS's proc directory isn't useded and so remove it. Prepare for removing
/proc/acpi directory.

Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/sbs.c | 325 +----------------------------------------------------
 1 file changed, 4 insertions(+), 321 deletions(-)

diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index aef7e1cd1e5d..d465ae6cdd00 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -30,12 +30,6 @@
 #include <linux/moduleparam.h>
 #include <linux/kernel.h>
 
-#ifdef CONFIG_ACPI_PROCFS_POWER
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <asm/uaccess.h>
-#endif
-
 #include <linux/acpi.h>
 #include <linux/timer.h>
 #include <linux/jiffies.h>
@@ -67,11 +61,6 @@ static unsigned int cache_time = 1000;
 module_param(cache_time, uint, 0644);
 MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
 
-extern struct proc_dir_entry *acpi_lock_ac_dir(void);
-extern struct proc_dir_entry *acpi_lock_battery_dir(void);
-extern void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir);
-extern void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
-
 #define MAX_SBS_BAT			4
 #define ACPI_SBS_BLOCK_MAX		32
 
@@ -84,9 +73,6 @@ MODULE_DEVICE_TABLE(acpi, sbs_device_ids);
 struct acpi_battery {
 	struct power_supply bat;
 	struct acpi_sbs *sbs;
-#ifdef CONFIG_ACPI_PROCFS_POWER
-	struct proc_dir_entry *proc_entry;
-#endif
 	unsigned long update_time;
 	char name[8];
 	char manufacturer_name[ACPI_SBS_BLOCK_MAX];
@@ -119,9 +105,6 @@ struct acpi_sbs {
 	struct acpi_device *device;
 	struct acpi_smb_hc *hc;
 	struct mutex lock;
-#ifdef CONFIG_ACPI_PROCFS_POWER
-	struct proc_dir_entry *charger_entry;
-#endif
 	struct acpi_battery battery[MAX_SBS_BAT];
 	u8 batteries_supported:4;
 	u8 manager_present:1;
@@ -481,261 +464,6 @@ static struct device_attribute alarm_attr = {
 	.store = acpi_battery_alarm_store,
 };
 
-/* --------------------------------------------------------------------------
-                              FS Interface (/proc/acpi)
-   -------------------------------------------------------------------------- */
-
-#ifdef CONFIG_ACPI_PROCFS_POWER
-/* Generic Routines */
-static int
-acpi_sbs_add_fs(struct proc_dir_entry **dir,
-		struct proc_dir_entry *parent_dir,
-		char *dir_name,
-		const struct file_operations *info_fops,
-		const struct file_operations *state_fops,
-		const struct file_operations *alarm_fops, void *data)
-{
-	printk(KERN_WARNING PREFIX "Deprecated procfs I/F for SBS is loaded,"
-			" please retry with CONFIG_ACPI_PROCFS_POWER cleared\n");
-	if (!*dir) {
-		*dir = proc_mkdir(dir_name, parent_dir);
-		if (!*dir) {
-			return -ENODEV;
-		}
-	}
-
-	/* 'info' [R] */
-	if (info_fops)
-		proc_create_data(ACPI_SBS_FILE_INFO, S_IRUGO, *dir,
-				 info_fops, data);
-
-	/* 'state' [R] */
-	if (state_fops)
-		proc_create_data(ACPI_SBS_FILE_STATE, S_IRUGO, *dir,
-				 state_fops, data);
-
-	/* 'alarm' [R/W] */
-	if (alarm_fops)
-		proc_create_data(ACPI_SBS_FILE_ALARM, S_IRUGO, *dir,
-				 alarm_fops, data);
-	return 0;
-}
-
-/* Smart Battery Interface */
-static struct proc_dir_entry *acpi_battery_dir = NULL;
-
-static inline char *acpi_battery_units(struct acpi_battery *battery)
-{
-	return acpi_battery_mode(battery) ? " mW" : " mA";
-}
-
-
-static int acpi_battery_read_info(struct seq_file *seq, void *offset)
-{
-	struct acpi_battery *battery = seq->private;
-	struct acpi_sbs *sbs = battery->sbs;
-	int result = 0;
-
-	mutex_lock(&sbs->lock);
-
-	seq_printf(seq, "present:                 %s\n",
-		   (battery->present) ? "yes" : "no");
-	if (!battery->present)
-		goto end;
-
-	seq_printf(seq, "design capacity:         %i%sh\n",
-		   battery->design_capacity * acpi_battery_scale(battery),
-		   acpi_battery_units(battery));
-	seq_printf(seq, "last full capacity:      %i%sh\n",
-		   battery->full_charge_capacity * acpi_battery_scale(battery),
-		   acpi_battery_units(battery));
-	seq_printf(seq, "battery technology:      rechargeable\n");
-	seq_printf(seq, "design voltage:          %i mV\n",
-		   battery->design_voltage * acpi_battery_vscale(battery));
-	seq_printf(seq, "design capacity warning: unknown\n");
-	seq_printf(seq, "design capacity low:     unknown\n");
-	seq_printf(seq, "cycle count:		  %i\n", battery->cycle_count);
-	seq_printf(seq, "capacity granularity 1:  unknown\n");
-	seq_printf(seq, "capacity granularity 2:  unknown\n");
-	seq_printf(seq, "model number:            %s\n", battery->device_name);
-	seq_printf(seq, "serial number:           %i\n",
-		   battery->serial_number);
-	seq_printf(seq, "battery type:            %s\n",
-		   battery->device_chemistry);
-	seq_printf(seq, "OEM info:                %s\n",
-		   battery->manufacturer_name);
-      end:
-	mutex_unlock(&sbs->lock);
-	return result;
-}
-
-static int acpi_battery_info_open_fs(struct inode *inode, struct file *file)
-{
-	return single_open(file, acpi_battery_read_info, PDE_DATA(inode));
-}
-
-static int acpi_battery_read_state(struct seq_file *seq, void *offset)
-{
-	struct acpi_battery *battery = seq->private;
-	struct acpi_sbs *sbs = battery->sbs;
-	int rate;
-
-	mutex_lock(&sbs->lock);
-	seq_printf(seq, "present:                 %s\n",
-		   (battery->present) ? "yes" : "no");
-	if (!battery->present)
-		goto end;
-
-	acpi_battery_get_state(battery);
-	seq_printf(seq, "capacity state:          %s\n",
-		   (battery->state & 0x0010) ? "critical" : "ok");
-	seq_printf(seq, "charging state:          %s\n",
-		   (battery->rate_now < 0) ? "discharging" :
-		   ((battery->rate_now > 0) ? "charging" : "charged"));
-	rate = abs(battery->rate_now) * acpi_battery_ipscale(battery);
-	rate *= (acpi_battery_mode(battery))?(battery->voltage_now *
-			acpi_battery_vscale(battery)/1000):1;
-	seq_printf(seq, "present rate:            %d%s\n", rate,
-		   acpi_battery_units(battery));
-	seq_printf(seq, "remaining capacity:      %i%sh\n",
-		   battery->capacity_now * acpi_battery_scale(battery),
-		   acpi_battery_units(battery));
-	seq_printf(seq, "present voltage:         %i mV\n",
-		   battery->voltage_now * acpi_battery_vscale(battery));
-
-      end:
-	mutex_unlock(&sbs->lock);
-	return 0;
-}
-
-static int acpi_battery_state_open_fs(struct inode *inode, struct file *file)
-{
-	return single_open(file, acpi_battery_read_state, PDE_DATA(inode));
-}
-
-static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
-{
-	struct acpi_battery *battery = seq->private;
-	struct acpi_sbs *sbs = battery->sbs;
-	int result = 0;
-
-	mutex_lock(&sbs->lock);
-
-	if (!battery->present) {
-		seq_printf(seq, "present:                 no\n");
-		goto end;
-	}
-
-	acpi_battery_get_alarm(battery);
-	seq_printf(seq, "alarm:                   ");
-	if (battery->alarm_capacity)
-		seq_printf(seq, "%i%sh\n",
-			   battery->alarm_capacity *
-			   acpi_battery_scale(battery),
-			   acpi_battery_units(battery));
-	else
-		seq_printf(seq, "disabled\n");
-      end:
-	mutex_unlock(&sbs->lock);
-	return result;
-}
-
-static ssize_t
-acpi_battery_write_alarm(struct file *file, const char __user * buffer,
-			 size_t count, loff_t * ppos)
-{
-	struct seq_file *seq = file->private_data;
-	struct acpi_battery *battery = seq->private;
-	struct acpi_sbs *sbs = battery->sbs;
-	char alarm_string[12] = { '\0' };
-	int result = 0;
-	mutex_lock(&sbs->lock);
-	if (!battery->present) {
-		result = -ENODEV;
-		goto end;
-	}
-	if (count > sizeof(alarm_string) - 1) {
-		result = -EINVAL;
-		goto end;
-	}
-	if (copy_from_user(alarm_string, buffer, count)) {
-		result = -EFAULT;
-		goto end;
-	}
-	alarm_string[count] = 0;
-	battery->alarm_capacity = simple_strtoul(alarm_string, NULL, 0) /
-					acpi_battery_scale(battery);
-	acpi_battery_set_alarm(battery);
-      end:
-	mutex_unlock(&sbs->lock);
-	if (result)
-		return result;
-	return count;
-}
-
-static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file)
-{
-	return single_open(file, acpi_battery_read_alarm, PDE_DATA(inode));
-}
-
-static const struct file_operations acpi_battery_info_fops = {
-	.open = acpi_battery_info_open_fs,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
-
-static const struct file_operations acpi_battery_state_fops = {
-	.open = acpi_battery_state_open_fs,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
-
-static const struct file_operations acpi_battery_alarm_fops = {
-	.open = acpi_battery_alarm_open_fs,
-	.read = seq_read,
-	.write = acpi_battery_write_alarm,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
-
-/* Legacy AC Adapter Interface */
-
-static struct proc_dir_entry *acpi_ac_dir = NULL;
-
-static int acpi_ac_read_state(struct seq_file *seq, void *offset)
-{
-
-	struct acpi_sbs *sbs = seq->private;
-
-	mutex_lock(&sbs->lock);
-
-	seq_printf(seq, "state:                   %s\n",
-		   sbs->charger_present ? "on-line" : "off-line");
-
-	mutex_unlock(&sbs->lock);
-	return 0;
-}
-
-static int acpi_ac_state_open_fs(struct inode *inode, struct file *file)
-{
-	return single_open(file, acpi_ac_read_state, PDE_DATA(inode));
-}
-
-static const struct file_operations acpi_ac_state_fops = {
-	.open = acpi_ac_state_open_fs,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-	.owner = THIS_MODULE,
-};
-
-#endif
-
 /* --------------------------------------------------------------------------
                                  Driver Interface
    -------------------------------------------------------------------------- */
@@ -781,12 +509,6 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
 		return result;
 
 	sprintf(battery->name, ACPI_BATTERY_DIR_NAME, id);
-#ifdef CONFIG_ACPI_PROCFS_POWER
-	acpi_sbs_add_fs(&battery->proc_entry, acpi_battery_dir,
-			battery->name, &acpi_battery_info_fops,
-			&acpi_battery_state_fops, &acpi_battery_alarm_fops,
-			battery);
-#endif
 	battery->bat.name = battery->name;
 	battery->bat.type = POWER_SUPPLY_TYPE_BATTERY;
 	if (!acpi_battery_mode(battery)) {
@@ -822,10 +544,6 @@ static void acpi_battery_remove(struct acpi_sbs *sbs, int id)
 			device_remove_file(battery->bat.dev, &alarm_attr);
 		power_supply_unregister(&battery->bat);
 	}
-#ifdef CONFIG_ACPI_PROCFS_POWER
-	proc_remove(battery->proc_entry);
-	battery->proc_entry = NULL;
-#endif
 }
 
 static int acpi_charger_add(struct acpi_sbs *sbs)
@@ -835,13 +553,7 @@ static int acpi_charger_add(struct acpi_sbs *sbs)
 	result = acpi_ac_get_present(sbs);
 	if (result)
 		goto end;
-#ifdef CONFIG_ACPI_PROCFS_POWER
-	result = acpi_sbs_add_fs(&sbs->charger_entry, acpi_ac_dir,
-				 ACPI_AC_DIR_NAME, NULL,
-				 &acpi_ac_state_fops, NULL, sbs);
-	if (result)
-		goto end;
-#endif
+
 	sbs->charger.name = "sbs-charger";
 	sbs->charger.type = POWER_SUPPLY_TYPE_MAINS;
 	sbs->charger.properties = sbs_ac_props;
@@ -859,10 +571,6 @@ static void acpi_charger_remove(struct acpi_sbs *sbs)
 {
 	if (sbs->charger.dev)
 		power_supply_unregister(&sbs->charger);
-#ifdef CONFIG_ACPI_PROCFS_POWER
-	proc_remove(sbs->charger_entry);
-	sbs->charger_entry = NULL;
-#endif
 }
 
 static void acpi_sbs_callback(void *context)
@@ -950,20 +658,6 @@ static int acpi_sbs_remove(struct acpi_device *device)
 	return 0;
 }
 
-static void acpi_sbs_rmdirs(void)
-{
-#ifdef CONFIG_ACPI_PROCFS_POWER
-	if (acpi_ac_dir) {
-		acpi_unlock_ac_dir(acpi_ac_dir);
-		acpi_ac_dir = NULL;
-	}
-	if (acpi_battery_dir) {
-		acpi_unlock_battery_dir(acpi_battery_dir);
-		acpi_battery_dir = NULL;
-	}
-#endif
-}
-
 #ifdef CONFIG_PM_SLEEP
 static int acpi_sbs_resume(struct device *dev)
 {
@@ -995,28 +689,17 @@ static int __init acpi_sbs_init(void)
 
 	if (acpi_disabled)
 		return -ENODEV;
-#ifdef CONFIG_ACPI_PROCFS_POWER
-	acpi_ac_dir = acpi_lock_ac_dir();
-	if (!acpi_ac_dir)
-		return -ENODEV;
-	acpi_battery_dir = acpi_lock_battery_dir();
-	if (!acpi_battery_dir) {
-		acpi_sbs_rmdirs();
-		return -ENODEV;
-	}
-#endif
+
 	result = acpi_bus_register_driver(&acpi_sbs_driver);
-	if (result < 0) {
-		acpi_sbs_rmdirs();
+	if (result < 0)
 		return -ENODEV;
-	}
+
 	return 0;
 }
 
 static void __exit acpi_sbs_exit(void)
 {
 	acpi_bus_unregister_driver(&acpi_sbs_driver);
-	acpi_sbs_rmdirs();
 	return;
 }
 
-- 
cgit 


From 7d7ee958867ad3c9c829a36c56e870879e83391f Mon Sep 17 00:00:00 2001
From: Lan Tianyu <tianyu.lan@intel.com>
Date: Fri, 11 Oct 2013 09:54:10 +0800
Subject: ACPI: Remove CONFIG_ACPI_PROCFS_POWER and cm_sbsc.c

There is no user of cm_sbs.c and CONFIG_ACPI_PROCFS_POWER. So remove
them. Prepare for removing /proc/acpi

Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/Kconfig  |  17 --------
 drivers/acpi/Makefile |   1 -
 drivers/acpi/cm_sbs.c | 105 --------------------------------------------------
 3 files changed, 123 deletions(-)
 delete mode 100644 drivers/acpi/cm_sbs.c

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 22327e6a7236..76f9ebda9081 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -56,23 +56,6 @@ config ACPI_PROCFS
 
 	  Say N to delete /proc/acpi/ files that have moved to /sys/
 
-config ACPI_PROCFS_POWER
-	bool "Deprecated power /proc/acpi directories"
-	depends on PROC_FS
-	help
-	  For backwards compatibility, this option allows
-          deprecated power /proc/acpi/ directories to exist, even when
-          they have been replaced by functions in /sys.
-          The deprecated directories (and their replacements) include:
-	  /proc/acpi/battery/* (/sys/class/power_supply/*)
-	  /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
-	  This option has no effect on /proc/acpi/ directories
-	  and functions, which do not yet exist in /sys
-	  This option, together with the proc directories, will be
-	  deleted in 2.6.39.
-
-	  Say N to delete power /proc/acpi/ directories that have moved to /sys/
-
 config ACPI_EC_DEBUGFS
 	tristate "EC read/write access through /sys/kernel/debug/ec"
 	default n
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index cdaf68b58b00..a55fc06db4ae 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -47,7 +47,6 @@ acpi-y				+= sysfs.o
 acpi-$(CONFIG_X86)		+= acpi_cmos_rtc.o
 acpi-$(CONFIG_DEBUG_FS)		+= debugfs.o
 acpi-$(CONFIG_ACPI_NUMA)	+= numa.o
-acpi-$(CONFIG_ACPI_PROCFS_POWER) += cm_sbs.o
 ifdef CONFIG_ACPI_VIDEO
 acpi-y				+= video_detect.o
 endif
diff --git a/drivers/acpi/cm_sbs.c b/drivers/acpi/cm_sbs.c
deleted file mode 100644
index 6c9ee68e46fb..000000000000
--- a/drivers/acpi/cm_sbs.c
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or (at
- *  your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/acpi.h>
-#include <linux/types.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <acpi/acpi_bus.h>
-#include <acpi/acpi_drivers.h>
-
-#define PREFIX "ACPI: "
-
-ACPI_MODULE_NAME("cm_sbs");
-#define ACPI_AC_CLASS		"ac_adapter"
-#define ACPI_BATTERY_CLASS	"battery"
-#define _COMPONENT		ACPI_SBS_COMPONENT
-static struct proc_dir_entry *acpi_ac_dir;
-static struct proc_dir_entry *acpi_battery_dir;
-
-static DEFINE_MUTEX(cm_sbs_mutex);
-
-static int lock_ac_dir_cnt;
-static int lock_battery_dir_cnt;
-
-struct proc_dir_entry *acpi_lock_ac_dir(void)
-{
-	mutex_lock(&cm_sbs_mutex);
-	if (!acpi_ac_dir)
-		acpi_ac_dir = proc_mkdir(ACPI_AC_CLASS, acpi_root_dir);
-	if (acpi_ac_dir) {
-		lock_ac_dir_cnt++;
-	} else {
-		printk(KERN_ERR PREFIX
-				  "Cannot create %s\n", ACPI_AC_CLASS);
-	}
-	mutex_unlock(&cm_sbs_mutex);
-	return acpi_ac_dir;
-}
-EXPORT_SYMBOL(acpi_lock_ac_dir);
-
-void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir_param)
-{
-	mutex_lock(&cm_sbs_mutex);
-	if (acpi_ac_dir_param)
-		lock_ac_dir_cnt--;
-	if (lock_ac_dir_cnt == 0 && acpi_ac_dir_param && acpi_ac_dir) {
-		remove_proc_entry(ACPI_AC_CLASS, acpi_root_dir);
-		acpi_ac_dir = NULL;
-	}
-	mutex_unlock(&cm_sbs_mutex);
-}
-EXPORT_SYMBOL(acpi_unlock_ac_dir);
-
-struct proc_dir_entry *acpi_lock_battery_dir(void)
-{
-	mutex_lock(&cm_sbs_mutex);
-	if (!acpi_battery_dir) {
-		acpi_battery_dir =
-		    proc_mkdir(ACPI_BATTERY_CLASS, acpi_root_dir);
-	}
-	if (acpi_battery_dir) {
-		lock_battery_dir_cnt++;
-	} else {
-		printk(KERN_ERR PREFIX
-				  "Cannot create %s\n", ACPI_BATTERY_CLASS);
-	}
-	mutex_unlock(&cm_sbs_mutex);
-	return acpi_battery_dir;
-}
-EXPORT_SYMBOL(acpi_lock_battery_dir);
-
-void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir_param)
-{
-	mutex_lock(&cm_sbs_mutex);
-	if (acpi_battery_dir_param)
-		lock_battery_dir_cnt--;
-	if (lock_battery_dir_cnt == 0 && acpi_battery_dir_param
-	    && acpi_battery_dir) {
-		remove_proc_entry(ACPI_BATTERY_CLASS, acpi_root_dir);
-		acpi_battery_dir = NULL;
-	}
-	mutex_unlock(&cm_sbs_mutex);
-	return;
-}
-EXPORT_SYMBOL(acpi_unlock_battery_dir);
-- 
cgit 


From 7744da5e90a2782ff0d48628c2cb120efcd300f3 Mon Sep 17 00:00:00 2001
From: Lan Tianyu <tianyu.lan@intel.com>
Date: Fri, 11 Oct 2013 09:54:11 +0800
Subject: ACPI / proc: Remove alarm proc file

Alarm proc file provides the info and control of RTC-CMOS alarm and
RTC CMOS driver provides wakealarm sysfs attribute for the same
purpose. The alarm file isn't compiled into kernel when RTC CMOS
driver is selected. The driver is default to be selected for x86
platform. So alarm file is default not to include. This patch is
to remove it to prepare remove /proc/acpi directory.

Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/proc.c | 305 ----------------------------------------------------
 1 file changed, 305 deletions(-)

diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c
index 04a13784dd20..6a5b152ad4d0 100644
--- a/drivers/acpi/proc.c
+++ b/drivers/acpi/proc.c
@@ -8,289 +8,17 @@
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
 
-#ifdef CONFIG_X86
-#include <linux/mc146818rtc.h>
-#endif
-
 #include "sleep.h"
 
 #define _COMPONENT		ACPI_SYSTEM_COMPONENT
 
 /*
  * this file provides support for:
- * /proc/acpi/alarm
  * /proc/acpi/wakeup
  */
 
 ACPI_MODULE_NAME("sleep")
 
-#if defined(CONFIG_RTC_DRV_CMOS) || defined(CONFIG_RTC_DRV_CMOS_MODULE) || !defined(CONFIG_X86)
-/* use /sys/class/rtc/rtcX/wakealarm instead; it's not ACPI-specific */
-#else
-#define	HAVE_ACPI_LEGACY_ALARM
-#endif
-
-#ifdef	HAVE_ACPI_LEGACY_ALARM
-
-static u32 cmos_bcd_read(int offset, int rtc_control);
-
-static int acpi_system_alarm_seq_show(struct seq_file *seq, void *offset)
-{
-	u32 sec, min, hr;
-	u32 day, mo, yr, cent = 0;
-	u32 today = 0;
-	unsigned char rtc_control = 0;
-	unsigned long flags;
-
-	spin_lock_irqsave(&rtc_lock, flags);
-
-	rtc_control = CMOS_READ(RTC_CONTROL);
-	sec = cmos_bcd_read(RTC_SECONDS_ALARM, rtc_control);
-	min = cmos_bcd_read(RTC_MINUTES_ALARM, rtc_control);
-	hr = cmos_bcd_read(RTC_HOURS_ALARM, rtc_control);
-
-	/* If we ever get an FACP with proper values... */
-	if (acpi_gbl_FADT.day_alarm) {
-		/* ACPI spec: only low 6 its should be cared */
-		day = CMOS_READ(acpi_gbl_FADT.day_alarm) & 0x3F;
-		if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
-			day = bcd2bin(day);
-	} else
-		day = cmos_bcd_read(RTC_DAY_OF_MONTH, rtc_control);
-	if (acpi_gbl_FADT.month_alarm)
-		mo = cmos_bcd_read(acpi_gbl_FADT.month_alarm, rtc_control);
-	else {
-		mo = cmos_bcd_read(RTC_MONTH, rtc_control);
-		today = cmos_bcd_read(RTC_DAY_OF_MONTH, rtc_control);
-	}
-	if (acpi_gbl_FADT.century)
-		cent = cmos_bcd_read(acpi_gbl_FADT.century, rtc_control);
-
-	yr = cmos_bcd_read(RTC_YEAR, rtc_control);
-
-	spin_unlock_irqrestore(&rtc_lock, flags);
-
-	/* we're trusting the FADT (see above) */
-	if (!acpi_gbl_FADT.century)
-		/* If we're not trusting the FADT, we should at least make it
-		 * right for _this_ century... ehm, what is _this_ century?
-		 *
-		 * TBD:
-		 *  ASAP: find piece of code in the kernel, e.g. star tracker driver,
-		 *        which we can trust to determine the century correctly. Atom
-		 *        watch driver would be nice, too...
-		 *
-		 *  if that has not happened, change for first release in 2050:
-		 *        if (yr<50)
-		 *                yr += 2100;
-		 *        else
-		 *                yr += 2000;   // current line of code
-		 *
-		 *  if that has not happened either, please do on 2099/12/31:23:59:59
-		 *        s/2000/2100
-		 *
-		 */
-		yr += 2000;
-	else
-		yr += cent * 100;
-
-	/*
-	 * Show correct dates for alarms up to a month into the future.
-	 * This solves issues for nearly all situations with the common
-	 * 30-day alarm clocks in PC hardware.
-	 */
-	if (day < today) {
-		if (mo < 12) {
-			mo += 1;
-		} else {
-			mo = 1;
-			yr += 1;
-		}
-	}
-
-	seq_printf(seq, "%4.4u-", yr);
-	(mo > 12) ? seq_puts(seq, "**-") : seq_printf(seq, "%2.2u-", mo);
-	(day > 31) ? seq_puts(seq, "** ") : seq_printf(seq, "%2.2u ", day);
-	(hr > 23) ? seq_puts(seq, "**:") : seq_printf(seq, "%2.2u:", hr);
-	(min > 59) ? seq_puts(seq, "**:") : seq_printf(seq, "%2.2u:", min);
-	(sec > 59) ? seq_puts(seq, "**\n") : seq_printf(seq, "%2.2u\n", sec);
-
-	return 0;
-}
-
-static int acpi_system_alarm_open_fs(struct inode *inode, struct file *file)
-{
-	return single_open(file, acpi_system_alarm_seq_show, PDE_DATA(inode));
-}
-
-static int get_date_field(char **p, u32 * value)
-{
-	char *next = NULL;
-	char *string_end = NULL;
-	int result = -EINVAL;
-
-	/*
-	 * Try to find delimeter, only to insert null.  The end of the
-	 * string won't have one, but is still valid.
-	 */
-	if (*p == NULL)
-		return result;
-
-	next = strpbrk(*p, "- :");
-	if (next)
-		*next++ = '\0';
-
-	*value = simple_strtoul(*p, &string_end, 10);
-
-	/* Signal success if we got a good digit */
-	if (string_end != *p)
-		result = 0;
-
-	if (next)
-		*p = next;
-	else
-		*p = NULL;
-
-	return result;
-}
-
-/* Read a possibly BCD register, always return binary */
-static u32 cmos_bcd_read(int offset, int rtc_control)
-{
-	u32 val = CMOS_READ(offset);
-	if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
-		val = bcd2bin(val);
-	return val;
-}
-
-/* Write binary value into possibly BCD register */
-static void cmos_bcd_write(u32 val, int offset, int rtc_control)
-{
-	if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
-		val = bin2bcd(val);
-	CMOS_WRITE(val, offset);
-}
-
-static ssize_t
-acpi_system_write_alarm(struct file *file,
-			const char __user * buffer, size_t count, loff_t * ppos)
-{
-	int result = 0;
-	char alarm_string[30] = { '\0' };
-	char *p = alarm_string;
-	u32 sec, min, hr, day, mo, yr;
-	int adjust = 0;
-	unsigned char rtc_control = 0;
-
-	if (count > sizeof(alarm_string) - 1)
-		return -EINVAL;
-
-	if (copy_from_user(alarm_string, buffer, count))
-		return -EFAULT;
-
-	alarm_string[count] = '\0';
-
-	/* check for time adjustment */
-	if (alarm_string[0] == '+') {
-		p++;
-		adjust = 1;
-	}
-
-	if ((result = get_date_field(&p, &yr)))
-		goto end;
-	if ((result = get_date_field(&p, &mo)))
-		goto end;
-	if ((result = get_date_field(&p, &day)))
-		goto end;
-	if ((result = get_date_field(&p, &hr)))
-		goto end;
-	if ((result = get_date_field(&p, &min)))
-		goto end;
-	if ((result = get_date_field(&p, &sec)))
-		goto end;
-
-	spin_lock_irq(&rtc_lock);
-
-	rtc_control = CMOS_READ(RTC_CONTROL);
-
-	if (adjust) {
-		yr += cmos_bcd_read(RTC_YEAR, rtc_control);
-		mo += cmos_bcd_read(RTC_MONTH, rtc_control);
-		day += cmos_bcd_read(RTC_DAY_OF_MONTH, rtc_control);
-		hr += cmos_bcd_read(RTC_HOURS, rtc_control);
-		min += cmos_bcd_read(RTC_MINUTES, rtc_control);
-		sec += cmos_bcd_read(RTC_SECONDS, rtc_control);
-	}
-
-	spin_unlock_irq(&rtc_lock);
-
-	if (sec > 59) {
-		min += sec/60;
-		sec = sec%60;
-	}
-	if (min > 59) {
-		hr += min/60;
-		min = min%60;
-	}
-	if (hr > 23) {
-		day += hr/24;
-		hr = hr%24;
-	}
-	if (day > 31) {
-		mo += day/32;
-		day = day%32;
-	}
-	if (mo > 12) {
-		yr += mo/13;
-		mo = mo%13;
-	}
-
-	spin_lock_irq(&rtc_lock);
-	/*
-	 * Disable alarm interrupt before setting alarm timer or else
-	 * when ACPI_EVENT_RTC is enabled, a spurious ACPI interrupt occurs
-	 */
-	rtc_control &= ~RTC_AIE;
-	CMOS_WRITE(rtc_control, RTC_CONTROL);
-	CMOS_READ(RTC_INTR_FLAGS);
-
-	/* write the fields the rtc knows about */
-	cmos_bcd_write(hr, RTC_HOURS_ALARM, rtc_control);
-	cmos_bcd_write(min, RTC_MINUTES_ALARM, rtc_control);
-	cmos_bcd_write(sec, RTC_SECONDS_ALARM, rtc_control);
-
-	/*
-	 * If the system supports an enhanced alarm it will have non-zero
-	 * offsets into the CMOS RAM here -- which for some reason are pointing
-	 * to the RTC area of memory.
-	 */
-	if (acpi_gbl_FADT.day_alarm)
-		cmos_bcd_write(day, acpi_gbl_FADT.day_alarm, rtc_control);
-	if (acpi_gbl_FADT.month_alarm)
-		cmos_bcd_write(mo, acpi_gbl_FADT.month_alarm, rtc_control);
-	if (acpi_gbl_FADT.century) {
-		if (adjust)
-			yr += cmos_bcd_read(acpi_gbl_FADT.century, rtc_control) * 100;
-		cmos_bcd_write(yr / 100, acpi_gbl_FADT.century, rtc_control);
-	}
-	/* enable the rtc alarm interrupt */
-	rtc_control |= RTC_AIE;
-	CMOS_WRITE(rtc_control, RTC_CONTROL);
-	CMOS_READ(RTC_INTR_FLAGS);
-
-	spin_unlock_irq(&rtc_lock);
-
-	acpi_clear_event(ACPI_EVENT_RTC);
-	acpi_enable_event(ACPI_EVENT_RTC, 0);
-
-	*ppos += count;
-
-	result = 0;
-      end:
-	return result ? result : count;
-}
-#endif				/* HAVE_ACPI_LEGACY_ALARM */
-
 static int
 acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
 {
@@ -417,41 +145,8 @@ static const struct file_operations acpi_system_wakeup_device_fops = {
 	.release = single_release,
 };
 
-#ifdef	HAVE_ACPI_LEGACY_ALARM
-static const struct file_operations acpi_system_alarm_fops = {
-	.owner = THIS_MODULE,
-	.open = acpi_system_alarm_open_fs,
-	.read = seq_read,
-	.write = acpi_system_write_alarm,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
-
-static u32 rtc_handler(void *context)
-{
-	acpi_clear_event(ACPI_EVENT_RTC);
-	acpi_disable_event(ACPI_EVENT_RTC, 0);
-
-	return ACPI_INTERRUPT_HANDLED;
-}
-#endif				/* HAVE_ACPI_LEGACY_ALARM */
-
 int __init acpi_sleep_proc_init(void)
 {
-#ifdef	HAVE_ACPI_LEGACY_ALARM
-	/* 'alarm' [R/W] */
-	proc_create("alarm", S_IFREG | S_IRUGO | S_IWUSR,
-		    acpi_root_dir, &acpi_system_alarm_fops);
-
-	acpi_install_fixed_event_handler(ACPI_EVENT_RTC, rtc_handler, NULL);
-	/*
-	 * Disable the RTC event after installing RTC handler.
-	 * Only when RTC alarm is set will it be enabled.
-	 */
-	acpi_clear_event(ACPI_EVENT_RTC);
-	acpi_disable_event(ACPI_EVENT_RTC, 0);
-#endif				/* HAVE_ACPI_LEGACY_ALARM */
-
 	/* 'wakeup device' [R/W] */
 	proc_create("wakeup", S_IFREG | S_IRUGO | S_IWUSR,
 		    acpi_root_dir, &acpi_system_wakeup_device_fops);
-- 
cgit 


From 8addac75a1ab0d8bd5fd25dbbc58e02ddfb089c9 Mon Sep 17 00:00:00 2001
From: Majunath Goudar <csmanjuvijay@gmail.com>
Date: Tue, 8 Oct 2013 16:02:15 +0530
Subject: zsmalloc: Fix "map_vm_area" undefined reference errors.

This patch adds a MMU dependency to configure the ZSMALLOC in
drivers/staging/zsmalloc/Kconfig. Without this patch, build
system can lead to build failure. This was observed during
randconfig testing, in which ZSMALLOC was enabled w/o MMU being
enabled. Following was the error:

LD      vmlinux
drivers/built-in.o: In function `__zs_map_object':
drivers/staging/zsmalloc/zsmalloc-main.c:650: undefined reference to `map_vm_area'
make: *** [vmlinux] Error 1

Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Seth Jennings <sjenning@linux.vnet.ibm.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: devel@driverdev.osuosl.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/zsmalloc/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/zsmalloc/Kconfig b/drivers/staging/zsmalloc/Kconfig
index 7fab032298f3..0ae13cd0908e 100644
--- a/drivers/staging/zsmalloc/Kconfig
+++ b/drivers/staging/zsmalloc/Kconfig
@@ -1,5 +1,6 @@
 config ZSMALLOC
 	bool "Memory allocator for compressed pages"
+	depends on MMU
 	default n
 	help
 	  zsmalloc is a slab-based memory allocator designed to store
-- 
cgit 


From a4d8c83cb55ee58cdbdc4b8a27e3855516efa484 Mon Sep 17 00:00:00 2001
From: Alexey Khoroshilov <khoroshilov@ispras.ru>
Date: Wed, 9 Oct 2013 00:50:15 +0400
Subject: staging: gdm7240: alloc_mux_rx() does not need GFP_ATOMIC

As far as alloc_mux_rx() is called from probe() only
there is no need in GFP_ATOMIC here.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/gdm724x/gdm_mux.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/gdm724x/gdm_mux.c b/drivers/staging/gdm724x/gdm_mux.c
index d63517ce2a33..3c89eaa4e5c7 100644
--- a/drivers/staging/gdm724x/gdm_mux.c
+++ b/drivers/staging/gdm724x/gdm_mux.c
@@ -96,12 +96,12 @@ static struct mux_rx *alloc_mux_rx(void)
 {
 	struct mux_rx *r = NULL;
 
-	r = kzalloc(sizeof(struct mux_rx), GFP_ATOMIC);
+	r = kzalloc(sizeof(struct mux_rx), GFP_KERNEL);
 	if (!r)
 		return NULL;
 
-	r->urb = usb_alloc_urb(0, GFP_ATOMIC);
-	r->buf = kmalloc(MUX_RX_MAX_SIZE, GFP_ATOMIC);
+	r->urb = usb_alloc_urb(0, GFP_KERNEL);
+	r->buf = kmalloc(MUX_RX_MAX_SIZE, GFP_KERNEL);
 	if (!r->urb || !r->buf) {
 		usb_free_urb(r->urb);
 		kfree(r->buf);
-- 
cgit 


From 47052577bcb941da36a991fea3dadc0d3b14c741 Mon Sep 17 00:00:00 2001
From: Alexey Khoroshilov <khoroshilov@ispras.ru>
Date: Wed, 9 Oct 2013 00:50:16 +0400
Subject: staging: gdm7240: fix memory leak on failure path

init_usb() may fail after some of mux_rxes already allocated.
So we need to release them on the failure path.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/gdm724x/gdm_mux.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/gdm724x/gdm_mux.c b/drivers/staging/gdm724x/gdm_mux.c
index 3c89eaa4e5c7..62163673976c 100644
--- a/drivers/staging/gdm724x/gdm_mux.c
+++ b/drivers/staging/gdm724x/gdm_mux.c
@@ -541,7 +541,7 @@ static int gdm_mux_probe(struct usb_interface *intf, const struct usb_device_id
 
 	ret = init_usb(mux_dev);
 	if (ret)
-		goto err_free_tty;
+		goto err_free_usb;
 
 	tty_dev->priv_dev = (void *)mux_dev;
 	tty_dev->send_func = gdm_mux_send;
@@ -565,8 +565,8 @@ static int gdm_mux_probe(struct usb_interface *intf, const struct usb_device_id
 
 err_unregister_tty:
 	unregister_lte_tty_device(tty_dev);
+err_free_usb:
 	release_usb(mux_dev);
-err_free_tty:
 	kfree(tty_dev);
 err_free_mux:
 	kfree(mux_dev);
-- 
cgit 


From 7a620a650b975cefd1b10b2ed7144b6c480fff12 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 10 Oct 2013 09:30:04 +0530
Subject: staging: xillybus: Use module_platform_driver

module_platform_driver simplifies the code by removing the boilerplate.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/xillybus/xillybus_of.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/staging/xillybus/xillybus_of.c b/drivers/staging/xillybus/xillybus_of.c
index 92c2931f4348..2ae045e332d4 100644
--- a/drivers/staging/xillybus/xillybus_of.c
+++ b/drivers/staging/xillybus/xillybus_of.c
@@ -198,15 +198,4 @@ static struct platform_driver xillybus_platform_driver = {
 	},
 };
 
-static int __init xillybus_of_init(void)
-{
-	return platform_driver_register(&xillybus_platform_driver);
-}
-
-static void __exit xillybus_of_exit(void)
-{
-	platform_driver_unregister(&xillybus_platform_driver);
-}
-
-module_init(xillybus_of_init);
-module_exit(xillybus_of_exit);
+module_platform_driver(xillybus_platform_driver);
-- 
cgit 


From 4a54b615005dbc033c8126cd4832bc3bbba4d952 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 9 Oct 2013 17:11:37 +0530
Subject: staging: mt29f_spinand: Use module_spi_driver

module_spi_driver removes the boilerplate code and simplifies it.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Henry Pan <hspan@micron.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/mt29f_spinand/mt29f_spinand.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/staging/mt29f_spinand/mt29f_spinand.c b/drivers/staging/mt29f_spinand/mt29f_spinand.c
index 8e95a57a8c4c..564707947598 100644
--- a/drivers/staging/mt29f_spinand/mt29f_spinand.c
+++ b/drivers/staging/mt29f_spinand/mt29f_spinand.c
@@ -939,23 +939,7 @@ static struct spi_driver spinand_driver = {
 	.remove		= spinand_remove,
 };
 
-/*
- * Device driver registration
- */
-static int __init spinand_init(void)
-{
-	return spi_register_driver(&spinand_driver);
-}
-
-/*
- * unregister Device driver.
- */
-static void __exit spinand_exit(void)
-{
-	spi_unregister_driver(&spinand_driver);
-}
-module_init(spinand_init);
-module_exit(spinand_exit);
+module_spi_driver(spinand_driver);
 
 MODULE_DESCRIPTION("SPI NAND driver for Micron");
 MODULE_AUTHOR("Henry Pan <hspan@micron.com>, Kamlakant Patel <kamlakant.patel@broadcom.com>");
-- 
cgit 


From 4ad0fdb0e23a4d31794f0818fb65eefdc8cd3306 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Wed, 9 Oct 2013 20:18:54 +0100
Subject: staging: vt6656: make pControlURB available life time of driver.

There is no need remove and add the control urb in device open/close.

Move to the probe and disconnect. This make the USB control in/out
functions always available to driver.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/main_usb.c | 23 ++++++++++-------------
 1 file changed, 10 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index e5add185fc7c..0de215657388 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -707,6 +707,12 @@ vt6656_probe(struct usb_interface *intf, const struct usb_device_id *id)
 	INIT_WORK(&pDevice->read_work_item, RXvWorkItem);
 	INIT_WORK(&pDevice->rx_mng_work_item, RXvMngWorkItem);
 
+	pDevice->pControlURB = usb_alloc_urb(0, GFP_ATOMIC);
+	if (!pDevice->pControlURB) {
+		DBG_PRT(MSG_LEVEL_ERR, KERN_ERR"Failed to alloc control urb\n");
+		goto err_nomem;
+	}
+
 	pDevice->tx_80211 = device_dma0_tx_80211;
 	pDevice->vnt_mgmt.pAdapter = (void *) pDevice;
 
@@ -853,23 +859,15 @@ static bool device_alloc_bufs(struct vnt_private *pDevice)
         pRCB++;
     }
 
-	pDevice->pControlURB = usb_alloc_urb(0, GFP_ATOMIC);
-	if (pDevice->pControlURB == NULL) {
-	    DBG_PRT(MSG_LEVEL_ERR,KERN_ERR"Failed to alloc control urb\n");
-	    goto free_rx_tx;
-	}
-
 	pDevice->pInterruptURB = usb_alloc_urb(0, GFP_ATOMIC);
 	if (pDevice->pInterruptURB == NULL) {
 	    DBG_PRT(MSG_LEVEL_ERR,KERN_ERR"Failed to alloc int urb\n");
-	    usb_free_urb(pDevice->pControlURB);
 	    goto free_rx_tx;
 	}
 
     pDevice->intBuf.pDataBuf = kmalloc(MAX_INTERRUPT_SIZE, GFP_KERNEL);
 	if (pDevice->intBuf.pDataBuf == NULL) {
 	    DBG_PRT(MSG_LEVEL_ERR,KERN_ERR"Failed to alloc int buf\n");
-	    usb_free_urb(pDevice->pControlURB);
 	    usb_free_urb(pDevice->pInterruptURB);
 	    goto free_rx_tx;
 	}
@@ -1040,9 +1038,7 @@ free_rx_tx:
     device_free_rx_bufs(pDevice);
     device_free_tx_bufs(pDevice);
     device_free_int_bufs(pDevice);
-	usb_kill_urb(pDevice->pControlURB);
 	usb_kill_urb(pDevice->pInterruptURB);
-    usb_free_urb(pDevice->pControlURB);
     usb_free_urb(pDevice->pInterruptURB);
 
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "device_open fail.. \n");
@@ -1113,9 +1109,7 @@ static int device_close(struct net_device *dev)
     device_free_int_bufs(pDevice);
     device_free_frag_bufs(pDevice);
 
-	usb_kill_urb(pDevice->pControlURB);
 	usb_kill_urb(pDevice->pInterruptURB);
-    usb_free_urb(pDevice->pControlURB);
     usb_free_urb(pDevice->pInterruptURB);
 
     BSSvClearNodeDBTable(pDevice, 0);
@@ -1139,9 +1133,12 @@ static void vt6656_disconnect(struct usb_interface *intf)
 
 	if (device->dev) {
 		unregister_netdev(device->dev);
+
+		usb_kill_urb(device->pControlURB);
+		usb_free_urb(device->pControlURB);
+
 		free_netdev(device->dev);
 	}
-
 }
 
 static int device_dma0_tx_80211(struct sk_buff *skb, struct net_device *dev)
-- 
cgit 


From c35d6a37bdcb1dde42dd65b00676696e2dd78f2f Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Wed, 9 Oct 2013 20:46:45 -0300
Subject: imx-drm: imx-drm-core: Fix circular locking dependency

Booting a mx6 with CONFIG_PROVE_LOCKING we get:

======================================================
[ INFO: possible circular locking dependency detected ]
3.12.0-rc4-next-20131009+ #34 Not tainted
-------------------------------------------------------
swapper/0/1 is trying to acquire lock:
 (&imx_drm_device->mutex){+.+.+.}, at: [<804575a8>] imx_drm_encoder_get_mux_id+0x28/0x98

but task is already holding lock:
 (&crtc->mutex){+.+...}, at: [<802fe778>] drm_modeset_lock_all+0x40/0x54

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

-> #2 (&crtc->mutex){+.+...}:
       [<800777d0>] __lock_acquire+0x18d4/0x1c24
       [<80077fec>] lock_acquire+0x68/0x7c
       [<805ead5c>] _mutex_lock_nest_lock+0x58/0x3a8
       [<802fec50>] drm_crtc_init+0x48/0xa8
       [<80457c88>] imx_drm_add_crtc+0xd4/0x144
       [<8045e2e8>] ipu_drm_probe+0x114/0x1fc
       [<80312278>] platform_drv_probe+0x20/0x50
       [<80310c68>] driver_probe_device+0x110/0x22c
       [<80310e20>] __driver_attach+0x9c/0xa0
       [<8030f218>] bus_for_each_dev+0x5c/0x90
       [<80310750>] driver_attach+0x20/0x28
       [<8031034c>] bus_add_driver+0xdc/0x1dc
       [<803114d8>] driver_register+0x80/0xfc
       [<80312198>] __platform_driver_register+0x50/0x64
       [<808172fc>] ipu_drm_driver_init+0x18/0x20
       [<800088c0>] do_one_initcall+0xfc/0x160
       [<807e7c5c>] kernel_init_freeable+0x104/0x1d4
       [<805e2930>] kernel_init+0x10/0xec
       [<8000ea68>] ret_from_fork+0x14/0x2c

-> #1 (&dev->mode_config.mutex){+.+.+.}:
       [<800777d0>] __lock_acquire+0x18d4/0x1c24
       [<80077fec>] lock_acquire+0x68/0x7c
       [<805eb100>] mutex_lock_nested+0x54/0x3a4
       [<802fe758>] drm_modeset_lock_all+0x20/0x54
       [<802fead4>] drm_encoder_init+0x20/0x7c
       [<80457ae4>] imx_drm_add_encoder+0x88/0xec
       [<80459838>] imx_ldb_probe+0x344/0x4fc
       [<80312278>] platform_drv_probe+0x20/0x50
       [<80310c68>] driver_probe_device+0x110/0x22c
       [<80310e20>] __driver_attach+0x9c/0xa0
       [<8030f218>] bus_for_each_dev+0x5c/0x90
       [<80310750>] driver_attach+0x20/0x28
       [<8031034c>] bus_add_driver+0xdc/0x1dc
       [<803114d8>] driver_register+0x80/0xfc
       [<80312198>] __platform_driver_register+0x50/0x64
       [<8081722c>] imx_ldb_driver_init+0x18/0x20
       [<800088c0>] do_one_initcall+0xfc/0x160
       [<807e7c5c>] kernel_init_freeable+0x104/0x1d4
       [<805e2930>] kernel_init+0x10/0xec
       [<8000ea68>] ret_from_fork+0x14/0x2c

-> #0 (&imx_drm_device->mutex){+.+.+.}:
       [<805e510c>] print_circular_bug+0x74/0x2e0
       [<80077ad0>] __lock_acquire+0x1bd4/0x1c24
       [<80077fec>] lock_acquire+0x68/0x7c
       [<805eb100>] mutex_lock_nested+0x54/0x3a4
       [<804575a8>] imx_drm_encoder_get_mux_id+0x28/0x98
       [<80459a98>] imx_ldb_encoder_prepare+0x34/0x114
       [<802ef724>] drm_crtc_helper_set_mode+0x1f0/0x4c0
       [<802f0344>] drm_crtc_helper_set_config+0x828/0x99c
       [<802ff270>] drm_mode_set_config_internal+0x5c/0xdc
       [<802eebe0>] drm_fb_helper_set_par+0x50/0xb4
       [<802af580>] fbcon_init+0x490/0x500
       [<802dd104>] visual_init+0xa8/0xf8
       [<802df414>] do_bind_con_driver+0x140/0x37c
       [<802df764>] do_take_over_console+0x114/0x1c4
       [<802af65c>] do_fbcon_takeover+0x6c/0xd4
       [<802b2b30>] fbcon_event_notify+0x7c8/0x818
       [<80049954>] notifier_call_chain+0x4c/0x8c
       [<80049cd8>] __blocking_notifier_call_chain+0x50/0x68
       [<80049d10>] blocking_notifier_call_chain+0x20/0x28
       [<802a75f0>] fb_notifier_call_chain+0x1c/0x24
       [<802a9224>] register_framebuffer+0x188/0x268
       [<802ee994>] drm_fb_helper_initial_config+0x2bc/0x4b8
       [<802f118c>] drm_fbdev_cma_init+0x7c/0xec
       [<80817288>] imx_fb_helper_init+0x54/0x90
       [<800088c0>] do_one_initcall+0xfc/0x160
       [<807e7c5c>] kernel_init_freeable+0x104/0x1d4
       [<805e2930>] kernel_init+0x10/0xec
       [<8000ea68>] ret_from_fork+0x14/0x2c

other info that might help us debug this:

Chain exists of:
  &imx_drm_device->mutex --> &dev->mode_config.mutex --> &crtc->mutex

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&crtc->mutex);
                               lock(&dev->mode_config.mutex);
                               lock(&crtc->mutex);
  lock(&imx_drm_device->mutex);

 *** DEADLOCK ***

6 locks held by swapper/0/1:
 #0:  (registration_lock){+.+.+.}, at: [<802a90bc>] register_framebuffer+0x20/0x268
 #1:  (&fb_info->lock){+.+.+.}, at: [<802a7a90>] lock_fb_info+0x20/0x44
 #2:  (console_lock){+.+.+.}, at: [<802a9218>] register_framebuffer+0x17c/0x268
 #3:  ((fb_notifier_list).rwsem){.+.+.+}, at: [<80049cbc>] __blocking_notifier_call_chain+0x34/0x68
 #4:  (&dev->mode_config.mutex){+.+.+.}, at: [<802fe758>] drm_modeset_lock_all+0x20/0x54
 #5:  (&crtc->mutex){+.+...}, at: [<802fe778>] drm_modeset_lock_all+0x40/0x54

In order to avoid this lockdep warning, remove the locking from
imx_drm_encoder_get_mux_id() and imx_drm_crtc_panel_format_pins().

Tested on a mx6sabrelite and mx53qsb.

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/imx-drm/imx-drm-core.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c
index a2e52a0c53c9..5e0b8e2889db 100644
--- a/drivers/staging/imx-drm/imx-drm-core.c
+++ b/drivers/staging/imx-drm/imx-drm-core.c
@@ -110,18 +110,12 @@ int imx_drm_crtc_panel_format_pins(struct drm_crtc *crtc, u32 encoder_type,
 	struct imx_drm_crtc *imx_crtc;
 	struct imx_drm_crtc_helper_funcs *helper;
 
-	mutex_lock(&imxdrm->mutex);
-
 	list_for_each_entry(imx_crtc, &imxdrm->crtc_list, list)
 		if (imx_crtc->crtc == crtc)
 			goto found;
 
-	mutex_unlock(&imxdrm->mutex);
-
 	return -EINVAL;
 found:
-	mutex_unlock(&imxdrm->mutex);
-
 	helper = &imx_crtc->imx_drm_helper_funcs;
 	if (helper->set_interface_pix_fmt)
 		return helper->set_interface_pix_fmt(crtc,
@@ -647,20 +641,14 @@ int imx_drm_encoder_get_mux_id(struct imx_drm_encoder *imx_drm_encoder,
 	struct imx_drm_crtc *imx_crtc;
 	int i = 0;
 
-	mutex_lock(&imxdrm->mutex);
-
 	list_for_each_entry(imx_crtc, &imxdrm->crtc_list, list) {
 		if (imx_crtc->crtc == crtc)
 			goto found;
 		i++;
 	}
 
-	mutex_unlock(&imxdrm->mutex);
-
 	return -EINVAL;
 found:
-	mutex_unlock(&imxdrm->mutex);
-
 	return i;
 }
 EXPORT_SYMBOL_GPL(imx_drm_encoder_get_mux_id);
-- 
cgit 


From a2210d578820f12190fdde4d33758a17336ab4fc Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Thu, 10 Oct 2013 16:18:36 +0200
Subject: staging: drm/imx: also allow to allocate only 2 DMFC slots for DP
 full plane

Connecting a 320x240 parallel display on i.MX6 resulted in an invalid DRDY
signal because the DC would not receive NL/EOL events on every line.
Reducing the allocated DMFC space from 4 slots (256 * 128-bit) to 2 slots
(128 * 128-bit) solved the problem.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/imx-drm/ipu-v3/ipu-dmfc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-dmfc.c b/drivers/staging/imx-drm/ipu-v3/ipu-dmfc.c
index 2e97c33b81e7..98070dd8c920 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-dmfc.c
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-dmfc.c
@@ -307,13 +307,13 @@ int ipu_dmfc_alloc_bandwidth(struct dmfc_channel *dmfc,
 		goto out;
 	}
 
-	/* Always allocate at least 128*4 bytes (2 slots) */
-	if (slots < 2)
-		slots = 2;
-
 	/* For the MEM_BG channel, first try to allocate twice the slots */
 	if (dmfc->data->ipu_channel == IPUV3_CHANNEL_MEM_BG_SYNC)
 		segment = dmfc_find_slots(priv, slots * 2);
+	else if (slots < 2)
+		/* Always allocate at least 128*4 bytes (2 slots) */
+		slots = 2;
+
 	if (segment >= 0)
 		slots *= 2;
 	else
-- 
cgit 


From e56af86646db2d0d8867d34d3f7cca6ab76e335f Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Thu, 10 Oct 2013 16:18:37 +0200
Subject: staging: drm/imx: make struct ipu_rgb format definitions const

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h |  2 +-
 drivers/staging/imx-drm/ipu-v3/ipu-common.c | 12 ++++++------
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h b/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h
index 74c022e2a532..872cf62d4134 100644
--- a/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h
+++ b/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h
@@ -283,7 +283,7 @@ int ipu_cpmem_set_format_passthrough(struct ipu_ch_param __iomem *p,
 		int width);
 
 int ipu_cpmem_set_format_rgb(struct ipu_ch_param __iomem *,
-		struct ipu_rgb *rgb);
+		const struct ipu_rgb *rgb);
 
 static inline void ipu_cpmem_interlaced_scan(struct ipu_ch_param *p,
 		int stride)
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-common.c b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
index ba464e5d9f12..8abd21547f5c 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-common.c
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
@@ -139,7 +139,7 @@ u32 ipu_ch_param_read_field(struct ipu_ch_param __iomem *base, u32 wbs)
 EXPORT_SYMBOL_GPL(ipu_ch_param_read_field);
 
 int ipu_cpmem_set_format_rgb(struct ipu_ch_param __iomem *p,
-		struct ipu_rgb *rgb)
+		const struct ipu_rgb *rgb)
 {
 	int bpp = 0, npb = 0, ro, go, bo, to;
 
@@ -282,7 +282,7 @@ void ipu_cpmem_set_yuv_planar(struct ipu_ch_param __iomem *p, u32 pixel_format,
 }
 EXPORT_SYMBOL_GPL(ipu_cpmem_set_yuv_planar);
 
-static struct ipu_rgb def_rgb_32 = {
+static const struct ipu_rgb def_rgb_32 = {
 	.red	= { .offset = 16, .length = 8, },
 	.green	= { .offset =  8, .length = 8, },
 	.blue	= { .offset =  0, .length = 8, },
@@ -290,7 +290,7 @@ static struct ipu_rgb def_rgb_32 = {
 	.bits_per_pixel = 32,
 };
 
-static struct ipu_rgb def_bgr_32 = {
+static const struct ipu_rgb def_bgr_32 = {
 	.red	= { .offset = 16, .length = 8, },
 	.green	= { .offset =  8, .length = 8, },
 	.blue	= { .offset =  0, .length = 8, },
@@ -298,7 +298,7 @@ static struct ipu_rgb def_bgr_32 = {
 	.bits_per_pixel = 32,
 };
 
-static struct ipu_rgb def_rgb_24 = {
+static const struct ipu_rgb def_rgb_24 = {
 	.red	= { .offset =  0, .length = 8, },
 	.green	= { .offset =  8, .length = 8, },
 	.blue	= { .offset = 16, .length = 8, },
@@ -306,7 +306,7 @@ static struct ipu_rgb def_rgb_24 = {
 	.bits_per_pixel = 24,
 };
 
-static struct ipu_rgb def_bgr_24 = {
+static const struct ipu_rgb def_bgr_24 = {
 	.red	= { .offset = 16, .length = 8, },
 	.green	= { .offset =  8, .length = 8, },
 	.blue	= { .offset =  0, .length = 8, },
@@ -314,7 +314,7 @@ static struct ipu_rgb def_bgr_24 = {
 	.bits_per_pixel = 24,
 };
 
-static struct ipu_rgb def_rgb_16 = {
+static const struct ipu_rgb def_rgb_16 = {
 	.red	= { .offset = 11, .length = 5, },
 	.green	= { .offset =  5, .length = 6, },
 	.blue	= { .offset =  0, .length = 5, },
-- 
cgit 


From 7cb17797fdb9f40e83cc76218c53e7589ce1dbcd Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Thu, 10 Oct 2013 16:18:38 +0200
Subject: staging: drm/imx: fix RGB formats, make ipu_cpmem_set_fmt take a
 drm_fourcc

The drm fourccs define formats not available as video4linux pixel formats,
such as DRM_FORMAT_BGR565, or the DRM_FORMAT_RGBX/BGRX variants.
Also, contrary to the v4l2 formats, the drm formats are well defined.

This patch also fixes the BGRA32 and RGB/RGB24 internal formats to use a
common internal representation.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h |   1 +
 drivers/staging/imx-drm/ipu-v3/ipu-common.c | 121 +++++++++++++++++++++++-----
 2 files changed, 100 insertions(+), 22 deletions(-)

diff --git a/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h b/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h
index 872cf62d4134..9bee6403f1e5 100644
--- a/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h
+++ b/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h
@@ -303,6 +303,7 @@ int ipu_cpmem_set_fmt(struct ipu_ch_param __iomem *cpmem, u32 pixelformat);
 int ipu_cpmem_set_image(struct ipu_ch_param __iomem *cpmem,
 		struct ipu_image *image);
 
+enum ipu_color_space ipu_drm_fourcc_to_colorspace(u32 drm_fourcc);
 enum ipu_color_space ipu_pixelformat_to_colorspace(u32 pixelformat);
 
 static inline void ipu_cpmem_set_burstsize(struct ipu_ch_param __iomem *p,
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-common.c b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
index 8abd21547f5c..54466df9daf5 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-common.c
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
@@ -30,6 +30,8 @@
 #include <linux/irqdomain.h>
 #include <linux/of_device.h>
 
+#include <drm/drm_fourcc.h>
+
 #include "imx-ipu-v3.h"
 #include "ipu-prv.h"
 
@@ -291,25 +293,25 @@ static const struct ipu_rgb def_rgb_32 = {
 };
 
 static const struct ipu_rgb def_bgr_32 = {
-	.red	= { .offset = 16, .length = 8, },
+	.red	= { .offset =  0, .length = 8, },
 	.green	= { .offset =  8, .length = 8, },
-	.blue	= { .offset =  0, .length = 8, },
+	.blue	= { .offset = 16, .length = 8, },
 	.transp = { .offset = 24, .length = 8, },
 	.bits_per_pixel = 32,
 };
 
 static const struct ipu_rgb def_rgb_24 = {
-	.red	= { .offset =  0, .length = 8, },
+	.red	= { .offset = 16, .length = 8, },
 	.green	= { .offset =  8, .length = 8, },
-	.blue	= { .offset = 16, .length = 8, },
+	.blue	= { .offset =  0, .length = 8, },
 	.transp = { .offset =  0, .length = 0, },
 	.bits_per_pixel = 24,
 };
 
 static const struct ipu_rgb def_bgr_24 = {
-	.red	= { .offset = 16, .length = 8, },
+	.red	= { .offset =  0, .length = 8, },
 	.green	= { .offset =  8, .length = 8, },
-	.blue	= { .offset =  0, .length = 8, },
+	.blue	= { .offset = 16, .length = 8, },
 	.transp = { .offset =  0, .length = 0, },
 	.bits_per_pixel = 24,
 };
@@ -329,17 +331,17 @@ static const struct ipu_rgb def_rgb_16 = {
 					(pix->width * pix->height / 4) + \
 					(pix->width * (y) / 4) + (x) / 2)
 
-int ipu_cpmem_set_fmt(struct ipu_ch_param __iomem *cpmem, u32 pixelformat)
+int ipu_cpmem_set_fmt(struct ipu_ch_param __iomem *cpmem, u32 drm_fourcc)
 {
-	switch (pixelformat) {
-	case V4L2_PIX_FMT_YUV420:
-	case V4L2_PIX_FMT_YVU420:
+	switch (drm_fourcc) {
+	case DRM_FORMAT_YUV420:
+	case DRM_FORMAT_YVU420:
 		/* pix format */
 		ipu_ch_param_write_field(cpmem, IPU_FIELD_PFS, 2);
 		/* burst size */
 		ipu_ch_param_write_field(cpmem, IPU_FIELD_NPB, 63);
 		break;
-	case V4L2_PIX_FMT_UYVY:
+	case DRM_FORMAT_UYVY:
 		/* bits/pixel */
 		ipu_ch_param_write_field(cpmem, IPU_FIELD_BPP, 3);
 		/* pix format */
@@ -347,7 +349,7 @@ int ipu_cpmem_set_fmt(struct ipu_ch_param __iomem *cpmem, u32 pixelformat)
 		/* burst size */
 		ipu_ch_param_write_field(cpmem, IPU_FIELD_NPB, 31);
 		break;
-	case V4L2_PIX_FMT_YUYV:
+	case DRM_FORMAT_YUYV:
 		/* bits/pixel */
 		ipu_ch_param_write_field(cpmem, IPU_FIELD_BPP, 3);
 		/* pix format */
@@ -355,20 +357,22 @@ int ipu_cpmem_set_fmt(struct ipu_ch_param __iomem *cpmem, u32 pixelformat)
 		/* burst size */
 		ipu_ch_param_write_field(cpmem, IPU_FIELD_NPB, 31);
 		break;
-	case V4L2_PIX_FMT_RGB32:
-		ipu_cpmem_set_format_rgb(cpmem, &def_rgb_32);
+	case DRM_FORMAT_ABGR8888:
+	case DRM_FORMAT_XBGR8888:
+		ipu_cpmem_set_format_rgb(cpmem, &def_bgr_32);
 		break;
-	case V4L2_PIX_FMT_RGB565:
-		ipu_cpmem_set_format_rgb(cpmem, &def_rgb_16);
+	case DRM_FORMAT_ARGB8888:
+	case DRM_FORMAT_XRGB8888:
+		ipu_cpmem_set_format_rgb(cpmem, &def_rgb_32);
 		break;
-	case V4L2_PIX_FMT_BGR32:
-		ipu_cpmem_set_format_rgb(cpmem, &def_bgr_32);
+	case DRM_FORMAT_BGR888:
+		ipu_cpmem_set_format_rgb(cpmem, &def_bgr_24);
 		break;
-	case V4L2_PIX_FMT_RGB24:
+	case DRM_FORMAT_RGB888:
 		ipu_cpmem_set_format_rgb(cpmem, &def_rgb_24);
 		break;
-	case V4L2_PIX_FMT_BGR24:
-		ipu_cpmem_set_format_rgb(cpmem, &def_bgr_24);
+	case DRM_FORMAT_RGB565:
+		ipu_cpmem_set_format_rgb(cpmem, &def_rgb_16);
 		break;
 	default:
 		return -EINVAL;
@@ -378,6 +382,79 @@ int ipu_cpmem_set_fmt(struct ipu_ch_param __iomem *cpmem, u32 pixelformat)
 }
 EXPORT_SYMBOL_GPL(ipu_cpmem_set_fmt);
 
+/*
+ * The V4L2 spec defines packed RGB formats in memory byte order, which from
+ * point of view of the IPU corresponds to little-endian words with the first
+ * component in the least significant bits.
+ * The DRM pixel formats and IPU internal representation are ordered the other
+ * way around, with the first named component ordered at the most significant
+ * bits. Further, V4L2 formats are not well defined:
+ *     http://linuxtv.org/downloads/v4l-dvb-apis/packed-rgb.html
+ * We choose the interpretation which matches GStreamer behavior.
+ */
+static int v4l2_pix_fmt_to_drm_fourcc(u32 pixelformat)
+{
+	switch (pixelformat) {
+	case V4L2_PIX_FMT_RGB565:
+		/*
+		 * Here we choose the 'corrected' interpretation of RGBP, a
+		 * little-endian 16-bit word with the red component at the most
+		 * significant bits:
+		 * g[2:0]b[4:0] r[4:0]g[5:3] <=> [16:0] R:G:B
+		 */
+		return DRM_FORMAT_RGB565;
+	case V4L2_PIX_FMT_BGR24:
+		/* B G R <=> [24:0] R:G:B */
+		return DRM_FORMAT_RGB888;
+	case V4L2_PIX_FMT_RGB24:
+		/* R G B <=> [24:0] B:G:R */
+		return DRM_FORMAT_BGR888;
+	case V4L2_PIX_FMT_BGR32:
+		/* B G R A <=> [32:0] A:B:G:R */
+		return DRM_FORMAT_XRGB8888;
+	case V4L2_PIX_FMT_RGB32:
+		/* R G B A <=> [32:0] A:B:G:R */
+		return DRM_FORMAT_XBGR8888;
+	case V4L2_PIX_FMT_UYVY:
+		return DRM_FORMAT_UYVY;
+	case V4L2_PIX_FMT_YUYV:
+		return DRM_FORMAT_YUYV;
+	case V4L2_PIX_FMT_YUV420:
+		return DRM_FORMAT_YUV420;
+	case V4L2_PIX_FMT_YVU420:
+		return DRM_FORMAT_YVU420;
+	}
+
+	return -EINVAL;
+}
+
+enum ipu_color_space ipu_drm_fourcc_to_colorspace(u32 drm_fourcc)
+{
+	switch (drm_fourcc) {
+	case DRM_FORMAT_RGB565:
+	case DRM_FORMAT_BGR565:
+	case DRM_FORMAT_RGB888:
+	case DRM_FORMAT_BGR888:
+	case DRM_FORMAT_XRGB8888:
+	case DRM_FORMAT_XBGR8888:
+	case DRM_FORMAT_RGBX8888:
+	case DRM_FORMAT_BGRX8888:
+	case DRM_FORMAT_ARGB8888:
+	case DRM_FORMAT_ABGR8888:
+	case DRM_FORMAT_RGBA8888:
+	case DRM_FORMAT_BGRA8888:
+		return IPUV3_COLORSPACE_RGB;
+	case DRM_FORMAT_YUYV:
+	case DRM_FORMAT_UYVY:
+	case DRM_FORMAT_YUV420:
+	case DRM_FORMAT_YVU420:
+		return IPUV3_COLORSPACE_YUV;
+	default:
+		return IPUV3_COLORSPACE_UNKNOWN;
+	}
+}
+EXPORT_SYMBOL_GPL(ipu_drm_fourcc_to_colorspace);
+
 int ipu_cpmem_set_image(struct ipu_ch_param __iomem *cpmem,
 		struct ipu_image *image)
 {
@@ -392,7 +469,7 @@ int ipu_cpmem_set_image(struct ipu_ch_param __iomem *cpmem,
 			image->rect.height);
 	ipu_cpmem_set_stride(cpmem, pix->bytesperline);
 
-	ipu_cpmem_set_fmt(cpmem, pix->pixelformat);
+	ipu_cpmem_set_fmt(cpmem, v4l2_pix_fmt_to_drm_fourcc(pix->pixelformat));
 
 	switch (pix->pixelformat) {
 	case V4L2_PIX_FMT_YUV420:
-- 
cgit 


From 38fc7b311edf86d7284452c832e10bccabcc76a5 Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Thu, 10 Oct 2013 16:18:39 +0200
Subject: staging: drm/imx: add BGR565 format

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/imx-drm/ipu-v3/ipu-common.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-common.c b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
index 54466df9daf5..f90bdb4c08c2 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-common.c
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
@@ -324,6 +324,14 @@ static const struct ipu_rgb def_rgb_16 = {
 	.bits_per_pixel = 16,
 };
 
+static const struct ipu_rgb def_bgr_16 = {
+	.red	= { .offset =  0, .length = 5, },
+	.green	= { .offset =  5, .length = 6, },
+	.blue	= { .offset = 11, .length = 5, },
+	.transp = { .offset =  0, .length = 0, },
+	.bits_per_pixel = 16,
+};
+
 #define Y_OFFSET(pix, x, y)	((x) + pix->width * (y))
 #define U_OFFSET(pix, x, y)	((pix->width * pix->height) + \
 					(pix->width * (y) / 4) + (x) / 2)
@@ -374,6 +382,9 @@ int ipu_cpmem_set_fmt(struct ipu_ch_param __iomem *cpmem, u32 drm_fourcc)
 	case DRM_FORMAT_RGB565:
 		ipu_cpmem_set_format_rgb(cpmem, &def_rgb_16);
 		break;
+	case DRM_FORMAT_BGR565:
+		ipu_cpmem_set_format_rgb(cpmem, &def_bgr_16);
+		break;
 	default:
 		return -EINVAL;
 	}
-- 
cgit 


From 0b186416c943eebfad070d38768cc3f2a80d5443 Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Thu, 10 Oct 2013 16:18:40 +0200
Subject: staging: drm/imx: Add 24-bit BGR support to DC

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/imx-drm/ipu-v3/ipu-dc.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-dc.c b/drivers/staging/imx-drm/ipu-v3/ipu-dc.c
index 21bf1c806528..1a6e06d1ebaf 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-dc.c
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-dc.c
@@ -91,6 +91,7 @@ enum ipu_dc_map {
 	IPU_DC_MAP_RGB565,
 	IPU_DC_MAP_GBR24, /* TVEv2 */
 	IPU_DC_MAP_BGR666,
+	IPU_DC_MAP_BGR24,
 };
 
 struct ipu_dc {
@@ -152,6 +153,8 @@ static int ipu_pixfmt_to_map(u32 fmt)
 		return IPU_DC_MAP_GBR24;
 	case V4L2_PIX_FMT_BGR666:
 		return IPU_DC_MAP_BGR666;
+	case V4L2_PIX_FMT_BGR24:
+		return IPU_DC_MAP_BGR24;
 	default:
 		return -EINVAL;
 	}
@@ -395,6 +398,12 @@ int ipu_dc_init(struct ipu_soc *ipu, struct device *dev,
 	ipu_dc_map_config(priv, IPU_DC_MAP_BGR666, 1, 11, 0xfc); /* green */
 	ipu_dc_map_config(priv, IPU_DC_MAP_BGR666, 2, 17, 0xfc); /* red */
 
+	/* bgr24 */
+	ipu_dc_map_clear(priv, IPU_DC_MAP_BGR24);
+	ipu_dc_map_config(priv, IPU_DC_MAP_BGR24, 2, 7, 0xff); /* red */
+	ipu_dc_map_config(priv, IPU_DC_MAP_BGR24, 1, 15, 0xff); /* green */
+	ipu_dc_map_config(priv, IPU_DC_MAP_BGR24, 0, 23, 0xff); /* blue */
+
 	return 0;
 }
 
-- 
cgit 


From fb822a395f6deabd9a87838a4e3da4b87c801876 Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Thu, 10 Oct 2013 16:18:41 +0200
Subject: staging: drm/imx: make waiting for idle channel optional

Currently we wait for a channel until it's idle before actually
disabling it. This is not needed for all channels though, so make
waiting for idle a separate function and call it where necessary.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h |  1 +
 drivers/staging/imx-drm/ipu-v3/ipu-common.c | 23 ++++++++++++++---------
 drivers/staging/imx-drm/ipuv3-crtc.c        |  1 +
 3 files changed, 16 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h b/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h
index 9bee6403f1e5..4826b5c0249d 100644
--- a/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h
+++ b/drivers/staging/imx-drm/ipu-v3/imx-ipu-v3.h
@@ -97,6 +97,7 @@ void ipu_idmac_put(struct ipuv3_channel *);
 
 int ipu_idmac_enable_channel(struct ipuv3_channel *channel);
 int ipu_idmac_disable_channel(struct ipuv3_channel *channel);
+int ipu_idmac_wait_busy(struct ipuv3_channel *channel, int ms);
 
 void ipu_idmac_set_double_buffer(struct ipuv3_channel *channel,
 		bool doublebuffer);
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-common.c b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
index f90bdb4c08c2..5ca42f090088 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-common.c
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
@@ -698,24 +698,29 @@ int ipu_idmac_enable_channel(struct ipuv3_channel *channel)
 }
 EXPORT_SYMBOL_GPL(ipu_idmac_enable_channel);
 
-int ipu_idmac_disable_channel(struct ipuv3_channel *channel)
+int ipu_idmac_wait_busy(struct ipuv3_channel *channel, int ms)
 {
 	struct ipu_soc *ipu = channel->ipu;
-	u32 val;
-	unsigned long flags;
 	unsigned long timeout;
 
-	timeout = jiffies + msecs_to_jiffies(50);
+	timeout = jiffies + msecs_to_jiffies(ms);
 	while (ipu_idmac_read(ipu, IDMAC_CHA_BUSY(channel->num)) &
 			idma_mask(channel->num)) {
-		if (time_after(jiffies, timeout)) {
-			dev_warn(ipu->dev, "disabling busy idmac channel %d\n",
-					channel->num);
-			break;
-		}
+		if (time_after(jiffies, timeout))
+			return -ETIMEDOUT;
 		cpu_relax();
 	}
 
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ipu_idmac_wait_busy);
+
+int ipu_idmac_disable_channel(struct ipuv3_channel *channel)
+{
+	struct ipu_soc *ipu = channel->ipu;
+	u32 val;
+	unsigned long flags;
+
 	spin_lock_irqsave(&ipu->lock, flags);
 
 	/* Disable DMA channel(s) */
diff --git a/drivers/staging/imx-drm/ipuv3-crtc.c b/drivers/staging/imx-drm/ipuv3-crtc.c
index 6fd37a7453e9..574633b9bc13 100644
--- a/drivers/staging/imx-drm/ipuv3-crtc.c
+++ b/drivers/staging/imx-drm/ipuv3-crtc.c
@@ -102,6 +102,7 @@ static void ipu_fb_disable(struct ipu_crtc *ipu_crtc)
 	if (ipu_crtc->dp)
 		ipu_dp_disable_channel(ipu_crtc->dp);
 	ipu_dc_disable_channel(ipu_crtc->dc);
+	ipu_idmac_wait_busy(ipu_crtc->ipu_ch, 50);
 	ipu_idmac_disable_channel(ipu_crtc->ipu_ch);
 	ipu_dmfc_disable_channel(ipu_crtc->dmfc);
 	ipu_di_disable(ipu_crtc->di);
-- 
cgit 


From 974aa7431816f74e8a3af51a0f46ba001d416878 Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Thu, 10 Oct 2013 16:18:42 +0200
Subject: staging: drm-imx: add DRM_FORMAT_BGR888 to ipu crtc driver

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/imx-drm/ipuv3-crtc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/staging/imx-drm/ipuv3-crtc.c b/drivers/staging/imx-drm/ipuv3-crtc.c
index 574633b9bc13..f63931b84075 100644
--- a/drivers/staging/imx-drm/ipuv3-crtc.c
+++ b/drivers/staging/imx-drm/ipuv3-crtc.c
@@ -223,6 +223,10 @@ static int ipu_crtc_mode_set(struct drm_crtc *crtc,
 		v4l2_fmt = V4L2_PIX_FMT_RGB24;
 		bpp = 24;
 		break;
+	case DRM_FORMAT_BGR888:
+		v4l2_fmt = V4L2_PIX_FMT_BGR24;
+		bpp = 24;
+		break;
 	default:
 		dev_err(ipu_crtc->dev, "unsupported pixel format 0x%08x\n",
 				fb->pixel_format);
-- 
cgit 


From b8fbb34181558ad231e63277589592fd686323a2 Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Thu, 10 Oct 2013 16:18:43 +0200
Subject: staging: drm/imx: ipuv3-crtc: remove unused struct ipu_framebuffer

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/imx-drm/ipuv3-crtc.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/staging/imx-drm/ipuv3-crtc.c b/drivers/staging/imx-drm/ipuv3-crtc.c
index f63931b84075..292abeaf0a48 100644
--- a/drivers/staging/imx-drm/ipuv3-crtc.c
+++ b/drivers/staging/imx-drm/ipuv3-crtc.c
@@ -33,13 +33,6 @@
 
 #define DRIVER_DESC		"i.MX IPUv3 Graphics"
 
-struct ipu_framebuffer {
-	struct drm_framebuffer	base;
-	void			*virt;
-	dma_addr_t		phys;
-	size_t			len;
-};
-
 struct ipu_crtc {
 	struct device		*dev;
 	struct drm_crtc		base;
-- 
cgit 


From 6ee4d7fe1b5f8c9c32410ddf1f1aa84bdeaed6b9 Mon Sep 17 00:00:00 2001
From: Sascha Hauer <s.hauer@pengutronix.de>
Date: Thu, 10 Oct 2013 16:18:44 +0200
Subject: staging: drm/imx: fix pageflip events during device close

During a device close the drm core frees all pending events in
drm_events_release(). If at that time a pageflip is pending the
interrupt handler will try to complete the now unitialized
event resulting in a NULL pointer exception. Seen on imx-drm
when userspace is killed during a page flip.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/imx-drm/imx-drm-core.c | 13 +++++++++++++
 drivers/staging/imx-drm/ipuv3-crtc.c   |  9 ++-------
 2 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c
index 5e0b8e2889db..3f683372c117 100644
--- a/drivers/staging/imx-drm/imx-drm-core.c
+++ b/drivers/staging/imx-drm/imx-drm-core.c
@@ -185,6 +185,18 @@ static void imx_drm_disable_vblank(struct drm_device *drm, int crtc)
 	imx_drm_crtc->imx_drm_helper_funcs.disable_vblank(imx_drm_crtc->crtc);
 }
 
+static void imx_drm_driver_preclose(struct drm_device *drm,
+		struct drm_file *file)
+{
+	int i;
+
+	if (!file->is_master)
+		return;
+
+	for (i = 0; i < 4; i++)
+		imx_drm_disable_vblank(drm , i);
+}
+
 static const struct file_operations imx_drm_driver_fops = {
 	.owner = THIS_MODULE,
 	.open = drm_open,
@@ -766,6 +778,7 @@ static struct drm_driver imx_drm_driver = {
 	.load			= imx_drm_driver_load,
 	.unload			= imx_drm_driver_unload,
 	.lastclose		= imx_drm_driver_lastclose,
+	.preclose		= imx_drm_driver_preclose,
 	.gem_free_object	= drm_gem_cma_free_object,
 	.gem_vm_ops		= &drm_gem_cma_vm_ops,
 	.dumb_create		= drm_gem_cma_dumb_create,
diff --git a/drivers/staging/imx-drm/ipuv3-crtc.c b/drivers/staging/imx-drm/ipuv3-crtc.c
index 292abeaf0a48..ae50dd43fa15 100644
--- a/drivers/staging/imx-drm/ipuv3-crtc.c
+++ b/drivers/staging/imx-drm/ipuv3-crtc.c
@@ -368,10 +368,6 @@ static struct drm_crtc_helper_funcs ipu_helper_funcs = {
 
 static int ipu_enable_vblank(struct drm_crtc *crtc)
 {
-	struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
-
-	enable_irq(ipu_crtc->irq);
-
 	return 0;
 }
 
@@ -379,7 +375,8 @@ static void ipu_disable_vblank(struct drm_crtc *crtc)
 {
 	struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
 
-	disable_irq(ipu_crtc->irq);
+	ipu_crtc->page_flip_event = NULL;
+	ipu_crtc->newfb = NULL;
 }
 
 static int ipu_set_interface_pix_fmt(struct drm_crtc *crtc, u32 encoder_type,
@@ -502,8 +499,6 @@ static int ipu_crtc_init(struct ipu_crtc *ipu_crtc,
 		goto err_put_resources;
 	}
 
-	disable_irq(ipu_crtc->irq);
-
 	return 0;
 
 err_put_resources:
-- 
cgit 


From b8d181e408af6a017da8143eccae9ce8f2157d2f Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Thu, 10 Oct 2013 16:18:45 +0200
Subject: staging: drm/imx: add drm plane support

This patch adds support for a drm overlay plane on DI0 using the DP.
In principle, the overlay plane could also be used on DI1, but to switch
the overlay plane between display interfaces, the base planes would have
to be exchanged transparently while both display interfaces are inactive.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/imx-drm/Makefile            |   2 +-
 drivers/staging/imx-drm/TODO                |   1 -
 drivers/staging/imx-drm/imx-drm-core.c      |   5 +
 drivers/staging/imx-drm/imx-drm.h           |   2 +
 drivers/staging/imx-drm/ipu-v3/ipu-common.c |   2 +-
 drivers/staging/imx-drm/ipuv3-crtc.c        | 198 ++++-----------
 drivers/staging/imx-drm/ipuv3-plane.c       | 375 ++++++++++++++++++++++++++++
 drivers/staging/imx-drm/ipuv3-plane.h       |  55 ++++
 8 files changed, 484 insertions(+), 156 deletions(-)
 create mode 100644 drivers/staging/imx-drm/ipuv3-plane.c
 create mode 100644 drivers/staging/imx-drm/ipuv3-plane.h

diff --git a/drivers/staging/imx-drm/Makefile b/drivers/staging/imx-drm/Makefile
index bfaf69378ac2..2c3a9e178fb5 100644
--- a/drivers/staging/imx-drm/Makefile
+++ b/drivers/staging/imx-drm/Makefile
@@ -8,4 +8,4 @@ obj-$(CONFIG_DRM_IMX_TVE) += imx-tve.o
 obj-$(CONFIG_DRM_IMX_LDB) += imx-ldb.o
 obj-$(CONFIG_DRM_IMX_FB_HELPER) += imx-fbdev.o
 obj-$(CONFIG_DRM_IMX_IPUV3_CORE) += ipu-v3/
-obj-$(CONFIG_DRM_IMX_IPUV3)	+= ipuv3-crtc.o
+obj-$(CONFIG_DRM_IMX_IPUV3)	+= ipuv3-crtc.o ipuv3-plane.o
diff --git a/drivers/staging/imx-drm/TODO b/drivers/staging/imx-drm/TODO
index 9cfa2a7efdc0..6a9da94c9573 100644
--- a/drivers/staging/imx-drm/TODO
+++ b/drivers/staging/imx-drm/TODO
@@ -9,7 +9,6 @@ TODO:
 
 Missing features (not necessarily for moving out of staging):
 
-- Add KMS plane support for CRTC driver
 - Add i.MX6 HDMI support
 - Add support for IC (Image converter)
 - Add support for CSI (CMOS Sensor interface)
diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c
index 3f683372c117..d306f3a0173f 100644
--- a/drivers/staging/imx-drm/imx-drm-core.c
+++ b/drivers/staging/imx-drm/imx-drm-core.c
@@ -68,6 +68,11 @@ struct imx_drm_connector {
 	struct module				*owner;
 };
 
+int imx_drm_crtc_id(struct imx_drm_crtc *crtc)
+{
+	return crtc->pipe;
+}
+
 static void imx_drm_driver_lastclose(struct drm_device *drm)
 {
 	struct imx_drm_device *imxdrm = drm->dev_private;
diff --git a/drivers/staging/imx-drm/imx-drm.h b/drivers/staging/imx-drm/imx-drm.h
index f2aac91ddf5d..ae90c9c15312 100644
--- a/drivers/staging/imx-drm/imx-drm.h
+++ b/drivers/staging/imx-drm/imx-drm.h
@@ -14,6 +14,8 @@ struct drm_fbdev_cma;
 struct drm_framebuffer;
 struct platform_device;
 
+int imx_drm_crtc_id(struct imx_drm_crtc *crtc);
+
 struct imx_drm_crtc_helper_funcs {
 	int (*enable_vblank)(struct drm_crtc *crtc);
 	void (*disable_vblank)(struct drm_crtc *crtc);
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-common.c b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
index 5ca42f090088..a0e7fc2f4031 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-common.c
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
@@ -981,7 +981,7 @@ static const struct ipu_platform_reg client_reg[] = {
 			.dc = 5,
 			.dp = IPU_DP_FLOW_SYNC_BG,
 			.dma[0] = IPUV3_CHANNEL_MEM_BG_SYNC,
-			.dma[1] = -EINVAL,
+			.dma[1] = IPUV3_CHANNEL_MEM_FG_SYNC,
 		},
 		.name = "imx-ipuv3-crtc",
 	}, {
diff --git a/drivers/staging/imx-drm/ipuv3-crtc.c b/drivers/staging/imx-drm/ipuv3-crtc.c
index ae50dd43fa15..f1112dfa6bf6 100644
--- a/drivers/staging/imx-drm/ipuv3-crtc.c
+++ b/drivers/staging/imx-drm/ipuv3-crtc.c
@@ -25,11 +25,13 @@
 #include <drm/drm_crtc_helper.h>
 #include <linux/fb.h>
 #include <linux/clk.h>
+#include <linux/errno.h>
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_fb_cma_helper.h>
 
 #include "ipu-v3/imx-ipu-v3.h"
 #include "imx-drm.h"
+#include "ipuv3-plane.h"
 
 #define DRIVER_DESC		"i.MX IPUv3 Graphics"
 
@@ -37,10 +39,11 @@ struct ipu_crtc {
 	struct device		*dev;
 	struct drm_crtc		base;
 	struct imx_drm_crtc	*imx_crtc;
-	struct ipuv3_channel	*ipu_ch;
+
+	/* plane[0] is the full plane, plane[1] is the partial plane */
+	struct ipu_plane	*plane[2];
+
 	struct ipu_dc		*dc;
-	struct ipu_dp		*dp;
-	struct dmfc_channel	*dmfc;
 	struct ipu_di		*di;
 	int			enabled;
 	struct drm_pending_vblank_event *page_flip_event;
@@ -54,35 +57,14 @@ struct ipu_crtc {
 
 #define to_ipu_crtc(x) container_of(x, struct ipu_crtc, base)
 
-static int calc_vref(struct drm_display_mode *mode)
-{
-	unsigned long htotal, vtotal;
-
-	htotal = mode->htotal;
-	vtotal = mode->vtotal;
-
-	if (!htotal || !vtotal)
-		return 60;
-
-	return mode->clock * 1000 / vtotal / htotal;
-}
-
-static int calc_bandwidth(struct drm_display_mode *mode, unsigned int vref)
-{
-	return mode->hdisplay * mode->vdisplay * vref;
-}
-
 static void ipu_fb_enable(struct ipu_crtc *ipu_crtc)
 {
 	if (ipu_crtc->enabled)
 		return;
 
 	ipu_di_enable(ipu_crtc->di);
-	ipu_dmfc_enable_channel(ipu_crtc->dmfc);
-	ipu_idmac_enable_channel(ipu_crtc->ipu_ch);
 	ipu_dc_enable_channel(ipu_crtc->dc);
-	if (ipu_crtc->dp)
-		ipu_dp_enable_channel(ipu_crtc->dp);
+	ipu_plane_enable(ipu_crtc->plane[0]);
 
 	ipu_crtc->enabled = 1;
 }
@@ -92,12 +74,8 @@ static void ipu_fb_disable(struct ipu_crtc *ipu_crtc)
 	if (!ipu_crtc->enabled)
 		return;
 
-	if (ipu_crtc->dp)
-		ipu_dp_disable_channel(ipu_crtc->dp);
+	ipu_plane_disable(ipu_crtc->plane[0]);
 	ipu_dc_disable_channel(ipu_crtc->dc);
-	ipu_idmac_wait_busy(ipu_crtc->ipu_ch, 50);
-	ipu_idmac_disable_channel(ipu_crtc->ipu_ch);
-	ipu_dmfc_disable_channel(ipu_crtc->dmfc);
 	ipu_di_disable(ipu_crtc->di);
 
 	ipu_crtc->enabled = 0;
@@ -153,33 +131,6 @@ static const struct drm_crtc_funcs ipu_crtc_funcs = {
 	.page_flip = ipu_page_flip,
 };
 
-static int ipu_drm_set_base(struct drm_crtc *crtc, int x, int y)
-{
-	struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
-	struct drm_gem_cma_object *cma_obj;
-	struct drm_framebuffer *fb = crtc->fb;
-	unsigned long phys;
-
-	cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
-	if (!cma_obj) {
-		DRM_LOG_KMS("entry is null.\n");
-		return -EFAULT;
-	}
-
-	phys = cma_obj->paddr;
-	phys += x * (fb->bits_per_pixel >> 3);
-	phys += y * fb->pitches[0];
-
-	dev_dbg(ipu_crtc->dev, "%s: phys: 0x%lx\n", __func__, phys);
-	dev_dbg(ipu_crtc->dev, "%s: xy: %dx%d\n", __func__, x, y);
-
-	ipu_cpmem_set_stride(ipu_get_cpmem(ipu_crtc->ipu_ch), fb->pitches[0]);
-	ipu_cpmem_set_buffer(ipu_get_cpmem(ipu_crtc->ipu_ch),
-			  0, phys);
-
-	return 0;
-}
-
 static int ipu_crtc_mode_set(struct drm_crtc *crtc,
 			       struct drm_display_mode *orig_mode,
 			       struct drm_display_mode *mode,
@@ -187,45 +138,15 @@ static int ipu_crtc_mode_set(struct drm_crtc *crtc,
 			       struct drm_framebuffer *old_fb)
 {
 	struct ipu_crtc *ipu_crtc = to_ipu_crtc(crtc);
-	struct drm_framebuffer *fb = ipu_crtc->base.fb;
 	int ret;
 	struct ipu_di_signal_cfg sig_cfg = {};
 	u32 out_pixel_fmt;
-	struct ipu_ch_param __iomem *cpmem = ipu_get_cpmem(ipu_crtc->ipu_ch);
-	int bpp;
-	u32 v4l2_fmt;
 
 	dev_dbg(ipu_crtc->dev, "%s: mode->hdisplay: %d\n", __func__,
 			mode->hdisplay);
 	dev_dbg(ipu_crtc->dev, "%s: mode->vdisplay: %d\n", __func__,
 			mode->vdisplay);
 
-	ipu_ch_param_zero(cpmem);
-
-	switch (fb->pixel_format) {
-	case DRM_FORMAT_XRGB8888:
-	case DRM_FORMAT_ARGB8888:
-		v4l2_fmt = V4L2_PIX_FMT_RGB32;
-		bpp = 32;
-		break;
-	case DRM_FORMAT_RGB565:
-		v4l2_fmt = V4L2_PIX_FMT_RGB565;
-		bpp = 16;
-		break;
-	case DRM_FORMAT_RGB888:
-		v4l2_fmt = V4L2_PIX_FMT_RGB24;
-		bpp = 24;
-		break;
-	case DRM_FORMAT_BGR888:
-		v4l2_fmt = V4L2_PIX_FMT_BGR24;
-		bpp = 24;
-		break;
-	default:
-		dev_err(ipu_crtc->dev, "unsupported pixel format 0x%08x\n",
-				fb->pixel_format);
-		return -EINVAL;
-	}
-
 	out_pixel_fmt = ipu_crtc->interface_pix_fmt;
 
 	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
@@ -255,18 +176,6 @@ static int ipu_crtc_mode_set(struct drm_crtc *crtc,
 	sig_cfg.hsync_pin = ipu_crtc->di_hsync_pin;
 	sig_cfg.vsync_pin = ipu_crtc->di_vsync_pin;
 
-	if (ipu_crtc->dp) {
-		ret = ipu_dp_setup_channel(ipu_crtc->dp, IPUV3_COLORSPACE_RGB,
-				IPUV3_COLORSPACE_RGB);
-		if (ret) {
-			dev_err(ipu_crtc->dev,
-				"initializing display processor failed with %d\n",
-				ret);
-			return ret;
-		}
-		ipu_dp_set_global_alpha(ipu_crtc->dp, 1, 0, 1);
-	}
-
 	ret = ipu_dc_init_sync(ipu_crtc->dc, ipu_crtc->di, sig_cfg.interlaced,
 			out_pixel_fmt, mode->hdisplay);
 	if (ret) {
@@ -283,30 +192,9 @@ static int ipu_crtc_mode_set(struct drm_crtc *crtc,
 		return ret;
 	}
 
-	ipu_cpmem_set_resolution(cpmem, mode->hdisplay, mode->vdisplay);
-	ipu_cpmem_set_fmt(cpmem, v4l2_fmt);
-	ipu_cpmem_set_high_priority(ipu_crtc->ipu_ch);
-
-	ret = ipu_dmfc_init_channel(ipu_crtc->dmfc, mode->hdisplay);
-	if (ret) {
-		dev_err(ipu_crtc->dev,
-				"initializing dmfc channel failed with %d\n",
-				ret);
-		return ret;
-	}
-
-	ret = ipu_dmfc_alloc_bandwidth(ipu_crtc->dmfc,
-			calc_bandwidth(mode, calc_vref(mode)), 64);
-	if (ret) {
-		dev_err(ipu_crtc->dev,
-				"allocating dmfc bandwidth failed with %d\n",
-				ret);
-		return ret;
-	}
-
-	ipu_drm_set_base(crtc, x, y);
-
-	return 0;
+	return ipu_plane_mode_set(ipu_crtc->plane[0], crtc, mode, crtc->fb,
+				  0, 0, mode->hdisplay, mode->vdisplay,
+				  x, y, mode->hdisplay, mode->vdisplay);
 }
 
 static void ipu_crtc_handle_pageflip(struct ipu_crtc *ipu_crtc)
@@ -330,7 +218,7 @@ static irqreturn_t ipu_irq_handler(int irq, void *dev_id)
 
 	if (ipu_crtc->newfb) {
 		ipu_crtc->newfb = NULL;
-		ipu_drm_set_base(&ipu_crtc->base, 0, 0);
+		ipu_plane_set_base(ipu_crtc->plane[0], ipu_crtc->base.fb, 0, 0);
 		ipu_crtc_handle_pageflip(ipu_crtc);
 	}
 
@@ -413,12 +301,8 @@ static const struct imx_drm_crtc_helper_funcs ipu_crtc_helper_funcs = {
 
 static void ipu_put_resources(struct ipu_crtc *ipu_crtc)
 {
-	if (!IS_ERR_OR_NULL(ipu_crtc->ipu_ch))
-		ipu_idmac_put(ipu_crtc->ipu_ch);
-	if (!IS_ERR_OR_NULL(ipu_crtc->dmfc))
-		ipu_dmfc_put(ipu_crtc->dmfc);
-	if (!IS_ERR_OR_NULL(ipu_crtc->dp))
-		ipu_dp_put(ipu_crtc->dp);
+	if (!IS_ERR_OR_NULL(ipu_crtc->dc))
+		ipu_dc_put(ipu_crtc->dc);
 	if (!IS_ERR_OR_NULL(ipu_crtc->di))
 		ipu_di_put(ipu_crtc->di);
 }
@@ -429,32 +313,12 @@ static int ipu_get_resources(struct ipu_crtc *ipu_crtc,
 	struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent);
 	int ret;
 
-	ipu_crtc->ipu_ch = ipu_idmac_get(ipu, pdata->dma[0]);
-	if (IS_ERR(ipu_crtc->ipu_ch)) {
-		ret = PTR_ERR(ipu_crtc->ipu_ch);
-		goto err_out;
-	}
-
 	ipu_crtc->dc = ipu_dc_get(ipu, pdata->dc);
 	if (IS_ERR(ipu_crtc->dc)) {
 		ret = PTR_ERR(ipu_crtc->dc);
 		goto err_out;
 	}
 
-	ipu_crtc->dmfc = ipu_dmfc_get(ipu, pdata->dma[0]);
-	if (IS_ERR(ipu_crtc->dmfc)) {
-		ret = PTR_ERR(ipu_crtc->dmfc);
-		goto err_out;
-	}
-
-	if (pdata->dp >= 0) {
-		ipu_crtc->dp = ipu_dp_get(ipu, pdata->dp);
-		if (IS_ERR(ipu_crtc->dp)) {
-			ret = PTR_ERR(ipu_crtc->dp);
-			goto err_out;
-		}
-	}
-
 	ipu_crtc->di = ipu_di_get(ipu, pdata->di);
 	if (IS_ERR(ipu_crtc->di)) {
 		ret = PTR_ERR(ipu_crtc->di);
@@ -472,7 +336,9 @@ static int ipu_crtc_init(struct ipu_crtc *ipu_crtc,
 		struct ipu_client_platformdata *pdata)
 {
 	struct ipu_soc *ipu = dev_get_drvdata(ipu_crtc->dev->parent);
+	int dp = -EINVAL;
 	int ret;
+	int id;
 
 	ret = ipu_get_resources(ipu_crtc, pdata);
 	if (ret) {
@@ -490,17 +356,42 @@ static int ipu_crtc_init(struct ipu_crtc *ipu_crtc,
 		goto err_put_resources;
 	}
 
-	ipu_crtc->irq = ipu_idmac_channel_irq(ipu, ipu_crtc->ipu_ch,
-			IPU_IRQ_EOF);
+	if (pdata->dp >= 0)
+		dp = IPU_DP_FLOW_SYNC_BG;
+	id = imx_drm_crtc_id(ipu_crtc->imx_crtc);
+	ipu_crtc->plane[0] = ipu_plane_init(ipu_crtc->base.dev, ipu,
+					    pdata->dma[0], dp, BIT(id), true);
+	ret = ipu_plane_get_resources(ipu_crtc->plane[0]);
+	if (ret) {
+		dev_err(ipu_crtc->dev, "getting plane 0 resources failed with %d.\n",
+			ret);
+		goto err_remove_crtc;
+	}
+
+	/* If this crtc is using the DP, add an overlay plane */
+	if (pdata->dp >= 0 && pdata->dma[1] > 0) {
+		ipu_crtc->plane[1] = ipu_plane_init(ipu_crtc->base.dev, ipu,
+						    pdata->dma[1],
+						    IPU_DP_FLOW_SYNC_FG,
+						    BIT(id), false);
+		if (IS_ERR(ipu_crtc->plane[1]))
+			ipu_crtc->plane[1] = NULL;
+	}
+
+	ipu_crtc->irq = ipu_plane_irq(ipu_crtc->plane[0]);
 	ret = devm_request_irq(ipu_crtc->dev, ipu_crtc->irq, ipu_irq_handler, 0,
 			"imx_drm", ipu_crtc);
 	if (ret < 0) {
 		dev_err(ipu_crtc->dev, "irq request failed with %d.\n", ret);
-		goto err_put_resources;
+		goto err_put_plane_res;
 	}
 
 	return 0;
 
+err_put_plane_res:
+	ipu_plane_put_resources(ipu_crtc->plane[0]);
+err_remove_crtc:
+	imx_drm_remove_crtc(ipu_crtc->imx_crtc);
 err_put_resources:
 	ipu_put_resources(ipu_crtc);
 
@@ -539,6 +430,7 @@ static int ipu_drm_remove(struct platform_device *pdev)
 
 	imx_drm_remove_crtc(ipu_crtc->imx_crtc);
 
+	ipu_plane_put_resources(ipu_crtc->plane[0]);
 	ipu_put_resources(ipu_crtc);
 
 	return 0;
diff --git a/drivers/staging/imx-drm/ipuv3-plane.c b/drivers/staging/imx-drm/ipuv3-plane.c
new file mode 100644
index 000000000000..d97454a0dffd
--- /dev/null
+++ b/drivers/staging/imx-drm/ipuv3-plane.c
@@ -0,0 +1,375 @@
+/*
+ * i.MX IPUv3 DP Overlay Planes
+ *
+ * Copyright (C) 2013 Philipp Zabel, Pengutronix
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm_fb_cma_helper.h>
+#include <drm/drm_gem_cma_helper.h>
+
+#include "ipu-v3/imx-ipu-v3.h"
+#include "ipuv3-plane.h"
+
+#define to_ipu_plane(x)	container_of(x, struct ipu_plane, base)
+
+static const uint32_t ipu_plane_formats[] = {
+	DRM_FORMAT_XRGB1555,
+	DRM_FORMAT_XBGR1555,
+	DRM_FORMAT_ARGB8888,
+	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_ABGR8888,
+	DRM_FORMAT_XBGR8888,
+	DRM_FORMAT_YUYV,
+	DRM_FORMAT_YVYU,
+	DRM_FORMAT_YUV420,
+	DRM_FORMAT_YVU420,
+};
+
+int ipu_plane_irq(struct ipu_plane *ipu_plane)
+{
+	return ipu_idmac_channel_irq(ipu_plane->ipu, ipu_plane->ipu_ch,
+				     IPU_IRQ_EOF);
+}
+
+static int calc_vref(struct drm_display_mode *mode)
+{
+	unsigned long htotal, vtotal;
+
+	htotal = mode->htotal;
+	vtotal = mode->vtotal;
+
+	if (!htotal || !vtotal)
+		return 60;
+
+	return DIV_ROUND_UP(mode->clock * 1000, vtotal * htotal);
+}
+
+static inline int calc_bandwidth(int width, int height, unsigned int vref)
+{
+	return width * height * vref;
+}
+
+int ipu_plane_set_base(struct ipu_plane *ipu_plane, struct drm_framebuffer *fb,
+		       int x, int y)
+{
+	struct ipu_ch_param __iomem *cpmem;
+	struct drm_gem_cma_object *cma_obj;
+
+	cma_obj = drm_fb_cma_get_gem_obj(fb, 0);
+	if (!cma_obj) {
+		DRM_LOG_KMS("entry is null.\n");
+		return -EFAULT;
+	}
+
+	dev_dbg(ipu_plane->base.dev->dev, "phys = 0x%x, x = %d, y = %d",
+		cma_obj->paddr, x, y);
+
+	cpmem = ipu_get_cpmem(ipu_plane->ipu_ch);
+	ipu_cpmem_set_stride(cpmem, fb->pitches[0]);
+	ipu_cpmem_set_buffer(cpmem, 0, cma_obj->paddr + fb->offsets[0] +
+			     fb->pitches[0] * y + x);
+
+	return 0;
+}
+
+int ipu_plane_mode_set(struct ipu_plane *ipu_plane, struct drm_crtc *crtc,
+		       struct drm_display_mode *mode,
+		       struct drm_framebuffer *fb, int crtc_x, int crtc_y,
+		       unsigned int crtc_w, unsigned int crtc_h,
+		       uint32_t src_x, uint32_t src_y,
+		       uint32_t src_w, uint32_t src_h)
+{
+	struct ipu_ch_param __iomem *cpmem;
+	struct device *dev = ipu_plane->base.dev->dev;
+	int ret;
+
+	/* no scaling */
+	if (src_w != crtc_w || src_h != crtc_h)
+		return -EINVAL;
+
+	/* clip to crtc bounds */
+	if (crtc_x < 0) {
+		if (-crtc_x > crtc_w)
+			return -EINVAL;
+		src_x += -crtc_x;
+		src_w -= -crtc_x;
+		crtc_w -= -crtc_x;
+		crtc_x = 0;
+	}
+	if (crtc_y < 0) {
+		if (-crtc_y > crtc_h)
+			return -EINVAL;
+		src_y += -crtc_y;
+		src_h -= -crtc_y;
+		crtc_h -= -crtc_y;
+		crtc_y = 0;
+	}
+	if (crtc_x + crtc_w > mode->hdisplay) {
+		if (crtc_x > mode->hdisplay)
+			return -EINVAL;
+		crtc_w = mode->hdisplay - crtc_x;
+		src_w = crtc_w;
+	}
+	if (crtc_y + crtc_h > mode->vdisplay) {
+		if (crtc_y > mode->vdisplay)
+			return -EINVAL;
+		crtc_h = mode->vdisplay - crtc_y;
+		src_h = crtc_h;
+	}
+	/* full plane minimum width is 13 pixels */
+	if (crtc_w < 13 && (ipu_plane->dp_flow != IPU_DP_FLOW_SYNC_FG))
+		return -EINVAL;
+	if (crtc_h < 2)
+		return -EINVAL;
+
+	switch (ipu_plane->dp_flow) {
+	case IPU_DP_FLOW_SYNC_BG:
+		ret = ipu_dp_setup_channel(ipu_plane->dp,
+				IPUV3_COLORSPACE_RGB,
+				IPUV3_COLORSPACE_RGB);
+		if (ret) {
+			dev_err(dev,
+				"initializing display processor failed with %d\n",
+				ret);
+			return ret;
+		}
+		ipu_dp_set_global_alpha(ipu_plane->dp, 1, 0, 1);
+		break;
+	case IPU_DP_FLOW_SYNC_FG:
+		ipu_dp_setup_channel(ipu_plane->dp,
+				ipu_drm_fourcc_to_colorspace(fb->pixel_format),
+				IPUV3_COLORSPACE_UNKNOWN);
+		ipu_dp_set_window_pos(ipu_plane->dp, crtc_x, crtc_y);
+		break;
+	}
+
+	ret = ipu_dmfc_init_channel(ipu_plane->dmfc, crtc_w);
+	if (ret) {
+		dev_err(dev, "initializing dmfc channel failed with %d\n", ret);
+		return ret;
+	}
+
+	ret = ipu_dmfc_alloc_bandwidth(ipu_plane->dmfc,
+			calc_bandwidth(crtc_w, crtc_h,
+				       calc_vref(mode)), 64);
+	if (ret) {
+		dev_err(dev, "allocating dmfc bandwidth failed with %d\n", ret);
+		return ret;
+	}
+
+	cpmem = ipu_get_cpmem(ipu_plane->ipu_ch);
+	ipu_ch_param_zero(cpmem);
+	ipu_cpmem_set_resolution(cpmem, src_w, src_h);
+	ret = ipu_cpmem_set_fmt(cpmem, fb->pixel_format);
+	if (ret < 0) {
+		dev_err(dev, "unsupported pixel format 0x%08x\n",
+			fb->pixel_format);
+		return ret;
+	}
+	ipu_cpmem_set_high_priority(ipu_plane->ipu_ch);
+
+	ret = ipu_plane_set_base(ipu_plane, fb, src_x, src_y);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+void ipu_plane_put_resources(struct ipu_plane *ipu_plane)
+{
+	if (!IS_ERR_OR_NULL(ipu_plane->dp))
+		ipu_dp_put(ipu_plane->dp);
+	if (!IS_ERR_OR_NULL(ipu_plane->dmfc))
+		ipu_dmfc_put(ipu_plane->dmfc);
+	if (!IS_ERR_OR_NULL(ipu_plane->ipu_ch))
+		ipu_idmac_put(ipu_plane->ipu_ch);
+}
+
+int ipu_plane_get_resources(struct ipu_plane *ipu_plane)
+{
+	int ret;
+
+	ipu_plane->ipu_ch = ipu_idmac_get(ipu_plane->ipu, ipu_plane->dma);
+	if (IS_ERR(ipu_plane->ipu_ch)) {
+		ret = PTR_ERR(ipu_plane->ipu_ch);
+		DRM_ERROR("failed to get idmac channel: %d\n", ret);
+		return ret;
+	}
+
+	ipu_plane->dmfc = ipu_dmfc_get(ipu_plane->ipu, ipu_plane->dma);
+	if (IS_ERR(ipu_plane->dmfc)) {
+		ret = PTR_ERR(ipu_plane->dmfc);
+		DRM_ERROR("failed to get dmfc: ret %d\n", ret);
+		goto err_out;
+	}
+
+	if (ipu_plane->dp_flow >= 0) {
+		ipu_plane->dp = ipu_dp_get(ipu_plane->ipu, ipu_plane->dp_flow);
+		if (IS_ERR(ipu_plane->dp)) {
+			ret = PTR_ERR(ipu_plane->dp);
+			DRM_ERROR("failed to get dp flow: %d\n", ret);
+			goto err_out;
+		}
+	}
+
+	return 0;
+err_out:
+	ipu_plane_put_resources(ipu_plane);
+
+	return ret;
+}
+
+void ipu_plane_enable(struct ipu_plane *ipu_plane)
+{
+	ipu_dmfc_enable_channel(ipu_plane->dmfc);
+	ipu_idmac_enable_channel(ipu_plane->ipu_ch);
+	if (ipu_plane->dp)
+		ipu_dp_enable_channel(ipu_plane->dp);
+
+	ipu_plane->enabled = true;
+}
+
+void ipu_plane_disable(struct ipu_plane *ipu_plane)
+{
+	ipu_plane->enabled = false;
+
+	ipu_idmac_wait_busy(ipu_plane->ipu_ch, 50);
+
+	if (ipu_plane->dp)
+		ipu_dp_disable_channel(ipu_plane->dp);
+	ipu_idmac_disable_channel(ipu_plane->ipu_ch);
+	ipu_dmfc_disable_channel(ipu_plane->dmfc);
+}
+
+static void ipu_plane_dpms(struct ipu_plane *ipu_plane, int mode)
+{
+	bool enable;
+
+	DRM_DEBUG_KMS("mode = %d", mode);
+
+	enable = (mode == DRM_MODE_DPMS_ON);
+
+	if (enable == ipu_plane->enabled)
+		return;
+
+	if (enable) {
+		ipu_plane_enable(ipu_plane);
+	} else {
+		ipu_plane_disable(ipu_plane);
+
+		ipu_idmac_put(ipu_plane->ipu_ch);
+		ipu_dmfc_put(ipu_plane->dmfc);
+		ipu_dp_put(ipu_plane->dp);
+	}
+}
+
+/*
+ * drm_plane API
+ */
+
+static int ipu_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
+			    struct drm_framebuffer *fb, int crtc_x, int crtc_y,
+			    unsigned int crtc_w, unsigned int crtc_h,
+			    uint32_t src_x, uint32_t src_y,
+			    uint32_t src_w, uint32_t src_h)
+{
+	struct ipu_plane *ipu_plane = to_ipu_plane(plane);
+	int ret = 0;
+
+	DRM_DEBUG_KMS("plane - %p\n", plane);
+
+	if (!ipu_plane->enabled)
+		ret = ipu_plane_get_resources(ipu_plane);
+	if (ret < 0)
+		return ret;
+
+	ret = ipu_plane_mode_set(ipu_plane, crtc, &crtc->hwmode, fb,
+			crtc_x, crtc_y, crtc_w, crtc_h,
+			src_x >> 16, src_y >> 16, src_w >> 16, src_h >> 16);
+	if (ret < 0) {
+		ipu_plane_put_resources(ipu_plane);
+		return ret;
+	}
+
+	if (crtc != plane->crtc)
+		dev_info(plane->dev->dev, "crtc change: %p -> %p\n",
+				plane->crtc, crtc);
+	plane->crtc = crtc;
+
+	ipu_plane_dpms(ipu_plane, DRM_MODE_DPMS_ON);
+
+	return 0;
+}
+
+static int ipu_disable_plane(struct drm_plane *plane)
+{
+	struct ipu_plane *ipu_plane = to_ipu_plane(plane);
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	ipu_plane_dpms(ipu_plane, DRM_MODE_DPMS_OFF);
+
+	ipu_plane_put_resources(ipu_plane);
+
+	return 0;
+}
+
+static void ipu_plane_destroy(struct drm_plane *plane)
+{
+	struct ipu_plane *ipu_plane = to_ipu_plane(plane);
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	ipu_disable_plane(plane);
+	drm_plane_cleanup(plane);
+	kfree(ipu_plane);
+}
+
+static struct drm_plane_funcs ipu_plane_funcs = {
+	.update_plane	= ipu_update_plane,
+	.disable_plane	= ipu_disable_plane,
+	.destroy	= ipu_plane_destroy,
+};
+
+struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu,
+				 int dma, int dp, unsigned int possible_crtcs,
+				 bool priv)
+{
+	struct ipu_plane *ipu_plane;
+	int ret;
+
+	DRM_DEBUG_KMS("channel %d, dp flow %d, possible_crtcs=0x%x\n",
+		      dma, dp, possible_crtcs);
+
+	ipu_plane = kzalloc(sizeof(*ipu_plane), GFP_KERNEL);
+	if (!ipu_plane) {
+		DRM_ERROR("failed to allocate plane\n");
+		return ERR_PTR(-ENOMEM);
+	}
+
+	ipu_plane->ipu = ipu;
+	ipu_plane->dma = dma;
+	ipu_plane->dp_flow = dp;
+
+	ret = drm_plane_init(dev, &ipu_plane->base, possible_crtcs,
+			     &ipu_plane_funcs, ipu_plane_formats,
+			     ARRAY_SIZE(ipu_plane_formats),
+			     priv);
+	if (ret) {
+		DRM_ERROR("failed to initialize plane\n");
+		kfree(ipu_plane);
+		return ERR_PTR(ret);
+	}
+
+	return ipu_plane;
+}
diff --git a/drivers/staging/imx-drm/ipuv3-plane.h b/drivers/staging/imx-drm/ipuv3-plane.h
new file mode 100644
index 000000000000..c0aae5bcb5d4
--- /dev/null
+++ b/drivers/staging/imx-drm/ipuv3-plane.h
@@ -0,0 +1,55 @@
+#ifndef __IPUV3_PLANE_H__
+#define __IPUV3_PLANE_H__
+
+#include <drm/drm_crtc.h> /* drm_plane */
+
+struct drm_plane;
+struct drm_device;
+struct ipu_soc;
+struct drm_crtc;
+struct drm_framebuffer;
+
+struct ipuv3_channel;
+struct dmfc_channel;
+struct ipu_dp;
+
+struct ipu_plane {
+	struct drm_plane	base;
+
+	struct ipu_soc		*ipu;
+	struct ipuv3_channel	*ipu_ch;
+	struct dmfc_channel	*dmfc;
+	struct ipu_dp		*dp;
+
+	int			dma;
+	int			dp_flow;
+
+	int			x;
+	int			y;
+
+	bool			enabled;
+};
+
+struct ipu_plane *ipu_plane_init(struct drm_device *dev, struct ipu_soc *ipu,
+				 int dma, int dp, unsigned int possible_crtcs,
+				 bool priv);
+
+/* Init IDMAC, DMFC, DP */
+int ipu_plane_mode_set(struct ipu_plane *plane, struct drm_crtc *crtc,
+		       struct drm_display_mode *mode,
+		       struct drm_framebuffer *fb, int crtc_x, int crtc_y,
+		       unsigned int crtc_w, unsigned int crtc_h,
+		       uint32_t src_x, uint32_t src_y, uint32_t src_w,
+		       uint32_t src_h);
+
+void ipu_plane_enable(struct ipu_plane *plane);
+void ipu_plane_disable(struct ipu_plane *plane);
+int ipu_plane_set_base(struct ipu_plane *plane, struct drm_framebuffer *fb,
+		       int x, int y);
+
+int ipu_plane_get_resources(struct ipu_plane *plane);
+void ipu_plane_put_resources(struct ipu_plane *plane);
+
+int ipu_plane_irq(struct ipu_plane *plane);
+
+#endif
-- 
cgit 


From bd3665c94a99e5788d13b20e68cd4ce21b38f877 Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Thu, 10 Oct 2013 16:18:46 +0200
Subject: staging: drm/imx: Enable DRM PRIME support

Lets the IPU driver make use of the PRIME functionality introduced
by the "drm: GEM CMA: Add DRM PRIME support" patch.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/imx-drm/imx-drm-core.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c
index d306f3a0173f..d2fb699c0d1d 100644
--- a/drivers/staging/imx-drm/imx-drm-core.c
+++ b/drivers/staging/imx-drm/imx-drm-core.c
@@ -779,7 +779,7 @@ static const struct drm_ioctl_desc imx_drm_ioctls[] = {
 };
 
 static struct drm_driver imx_drm_driver = {
-	.driver_features	= DRIVER_MODESET | DRIVER_GEM,
+	.driver_features	= DRIVER_MODESET | DRIVER_GEM | DRIVER_PRIME,
 	.load			= imx_drm_driver_load,
 	.unload			= imx_drm_driver_unload,
 	.lastclose		= imx_drm_driver_lastclose,
@@ -790,6 +790,15 @@ static struct drm_driver imx_drm_driver = {
 	.dumb_map_offset	= drm_gem_cma_dumb_map_offset,
 	.dumb_destroy		= drm_gem_dumb_destroy,
 
+	.prime_handle_to_fd	= drm_gem_prime_handle_to_fd,
+	.prime_fd_to_handle	= drm_gem_prime_fd_to_handle,
+	.gem_prime_import	= drm_gem_prime_import,
+	.gem_prime_export	= drm_gem_prime_export,
+	.gem_prime_get_sg_table	= drm_gem_cma_prime_get_sg_table,
+	.gem_prime_import_sg_table = drm_gem_cma_prime_import_sg_table,
+	.gem_prime_vmap		= drm_gem_cma_prime_vmap,
+	.gem_prime_vunmap	= drm_gem_cma_prime_vunmap,
+	.gem_prime_mmap		= drm_gem_cma_prime_mmap,
 	.get_vblank_counter	= drm_vblank_count,
 	.enable_vblank		= imx_drm_enable_vblank,
 	.disable_vblank		= imx_drm_disable_vblank,
-- 
cgit 


From eb4700edd966c74c0e489b026077abeadffac948 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:15 +0100
Subject: staging: comedi: s626: tidy the header file a bit

Tidy up the "s626.h" header file a bit, cleaning up the whitespace and
fixing overlength lines.  Add multiple inclusion protection (even though
it's only included once and only by "s626.c").  Remove unnecessary
driver comment near the start of the file as it is more or less the same
as the one in "s626.c".  Remove obviously unused/useless stuff.

I'm not sure what to do about the INTEL/MOTOROLA platform selection in
the file.  I've left it alone (set to INTEL) for now.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.h | 925 ++++++++++++++++------------------
 1 file changed, 436 insertions(+), 489 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h
index a85e6bdcad07..c4b8078e0c06 100644
--- a/drivers/staging/comedi/drivers/s626.h
+++ b/drivers/staging/comedi/drivers/s626.h
@@ -1,61 +1,26 @@
 /*
-  comedi/drivers/s626.h
-  Sensoray s626 Comedi driver, header file
-
-  COMEDI - Linux Control and Measurement Device Interface
-  Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-
-  Based on Sensoray Model 626 Linux driver Version 0.2
-  Copyright (C) 2002-2004 Sensoray Co., Inc.
-
-  This program is free software; you can redistribute it and/or modify
-  it under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
-  (at your option) any later version.
-
-  This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  GNU General Public License for more details.
-*/
-
-/*
-  Driver: s626.o (s626.ko)
-  Description: Sensoray 626 driver
-  Devices: Sensoray s626
-  Authors: Gianluca Palli <gpalli@deis.unibo.it>,
-  Updated: Thu, 12 Jul 2005
-  Status: experimental
-
-  Configuration Options:
-  analog input:
-   none
-
-  analog output:
-   none
-
-  digital channel:
-   s626 has 3 dio subdevices (2,3 and 4) each with 16 i/o channels
-   supported configuration options:
-   INSN_CONFIG_DIO_QUERY
-   COMEDI_INPUT
-   COMEDI_OUTPUT
-
-  encoder:
-   Every channel must be configured before reading.
-
-   Example code
-
-   insn.insn=INSN_CONFIG;   // configuration instruction
-   insn.n=1;                // number of operation (must be 1)
-   insn.data=&initialvalue; // initial value loaded into encoder
-                            // during configuration
-   insn.subdev=5;           // encoder subdevice
-   insn.chanspec=CR_PACK(encoder_channel,0,AREF_OTHER); // encoder_channel
-                                                        // to configure
-
-   comedi_do_insn(cf,&insn); // executing configuration
-*/
+ * comedi/drivers/s626.h
+ * Sensoray s626 Comedi driver, header file
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
+ *
+ * Based on Sensoray Model 626 Linux driver Version 0.2
+ * Copyright (C) 2002-2004 Sensoray Co., Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef S626_H_INCLUDED
+#define S626_H_INCLUDED
 
 #if !defined(TRUE)
 #define TRUE    (1)
@@ -65,154 +30,155 @@
 #define FALSE   (0)
 #endif
 
-#define S626_SIZE 0x0200
-#define DMABUF_SIZE			4096	/*  4k pages */
+#define S626_SIZE		0x200
+#define DMABUF_SIZE		4096	/* 4k pages */
 
 #define S626_ADC_CHANNELS       16
 #define S626_DAC_CHANNELS       4
 #define S626_ENCODER_CHANNELS   6
 #define S626_DIO_CHANNELS       48
-#define S626_DIO_BANKS		3	/*  Number of DIO groups. */
-#define S626_DIO_EXTCHANS	40	/*  Number of */
-					/*  extended-capability */
-					/*  DIO channels. */
+#define S626_DIO_BANKS		3	/* Number of DIO groups. */
+#define S626_DIO_EXTCHANS	40	/* Number of extended-capability
+					 * DIO channels. */
 
-#define NUM_TRIMDACS	12	/*  Number of valid TrimDAC channels. */
+#define NUM_TRIMDACS		12	/* Number of valid TrimDAC channels. */
 
-/*  PCI bus interface types. */
-#define INTEL				1	/*  Intel bus type. */
-#define MOTOROLA			2	/*  Motorola bus type. */
+/* PCI bus interface types. */
+#define INTEL			1	/* Intel bus type. */
+#define MOTOROLA		2	/* Motorola bus type. */
 
-#define PLATFORM		INTEL	/*  *** SELECT PLATFORM TYPE *** */
+#define PLATFORM		INTEL	/* *** SELECT PLATFORM TYPE *** */
 
-#define RANGE_5V                0x10	/*  +/-5V range */
-#define RANGE_10V               0x00	/*  +/-10V range */
+#define RANGE_5V                0x10	/* +/-5V range */
+#define RANGE_10V               0x00	/* +/-10V range */
 
-#define EOPL			0x80	/*  End of ADC poll list marker. */
-#define GSEL_BIPOLAR5V		0x00F0	/*  LP_GSEL setting for 5V bipolar range. */
-#define GSEL_BIPOLAR10V		0x00A0	/*  LP_GSEL setting for 10V bipolar range. */
+#define EOPL			0x80	/* End of ADC poll list marker. */
+#define GSEL_BIPOLAR5V		0x00F0	/* LP_GSEL setting for 5V bipolar. */
+#define GSEL_BIPOLAR10V		0x00A0	/* LP_GSEL setting for 10V bipolar. */
 
-/*  Error codes that must be visible to this base class. */
-#define ERR_ILLEGAL_PARM	0x00010000	/*  Illegal function parameter value was specified. */
-#define ERR_I2C			0x00020000	/*  I2C error. */
-#define ERR_COUNTERSETUP	0x00200000	/*  Illegal setup specified for counter channel. */
-#define ERR_DEBI_TIMEOUT	0x00400000	/*  DEBI transfer timed out. */
+/* Error codes that must be visible to this base class. */
+#define ERR_ILLEGAL_PARM	0x00010000	/* Illegal function parameter
+						 * value was specified. */
+#define ERR_I2C			0x00020000	/* I2C error. */
+#define ERR_COUNTERSETUP	0x00200000	/* Illegal setup specified for
+						 * counter channel. */
+#define ERR_DEBI_TIMEOUT	0x00400000	/* DEBI transfer timed out. */
 
-/*  Organization (physical order) and size (in DWORDs) of logical DMA buffers contained by ANA_DMABUF. */
-#define ADC_DMABUF_DWORDS	40	/*  ADC DMA buffer must hold 16 samples, plus pre/post garbage samples. */
-#define DAC_WDMABUF_DWORDS	1	/*  DAC output DMA buffer holds a single sample. */
+/*
+ * Organization (physical order) and size (in DWORDs) of logical DMA buffers
+ * contained by ANA_DMABUF.
+ */
+#define ADC_DMABUF_DWORDS	40	/* ADC DMA buffer must hold 16 samples,
+					 * plus pre/post garbage samples. */
+#define DAC_WDMABUF_DWORDS	1	/* DAC output DMA buffer holds a single
+					 * sample. */
 
-/*  All remaining space in 4KB DMA buffer is available for the RPS1 program. */
+/* All remaining space in 4KB DMA buffer is available for the RPS1 program. */
 
-/*  Address offsets, in DWORDS, from base of DMA buffer. */
+/* Address offsets, in DWORDS, from base of DMA buffer. */
 #define DAC_WDMABUF_OS		ADC_DMABUF_DWORDS
 
-/*  Interrupt enab bit in ISR and IER. */
-#define IRQ_GPIO3		0x00000040	/*  IRQ enable for GPIO3. */
+/*  Interrupt enable bit in ISR and IER. */
+#define IRQ_GPIO3		0x00000040	/* IRQ enable for GPIO3. */
 #define IRQ_RPS1                0x10000000
 #define ISR_AFOU		0x00000800
 /* Audio fifo under/overflow  detected. */
 
-#define IRQ_COINT1A             0x0400	/* conter 1A overflow interrupt mask */
-#define IRQ_COINT1B             0x0800	/* conter 1B overflow interrupt mask */
-#define IRQ_COINT2A             0x1000	/* conter 2A overflow interrupt mask */
-#define IRQ_COINT2B             0x2000	/* conter 2B overflow interrupt mask */
-#define IRQ_COINT3A             0x4000	/* conter 3A overflow interrupt mask */
-#define IRQ_COINT3B             0x8000	/* conter 3B overflow interrupt mask */
-
-/*  RPS command codes. */
-#define RPS_CLRSIGNAL		0x00000000	/*  CLEAR SIGNAL */
-#define RPS_SETSIGNAL		0x10000000	/*  SET SIGNAL */
-#define RPS_NOP			0x00000000	/*  NOP */
-#define RPS_PAUSE		0x20000000	/*  PAUSE */
-#define RPS_UPLOAD		0x40000000	/*  UPLOAD */
-#define RPS_JUMP		0x80000000	/*  JUMP */
-#define RPS_LDREG		0x90000100	/*  LDREG (1 uint32_t only) */
-#define RPS_STREG		0xA0000100	/*  STREG (1 uint32_t only) */
-#define RPS_STOP		0x50000000	/*  STOP */
-#define RPS_IRQ                 0x60000000	/*  IRQ */
-
-#define RPS_LOGICAL_OR		0x08000000	/*  Logical OR conditionals. */
-#define RPS_INVERT		0x04000000	/*  Test for negated semaphores. */
-#define RPS_DEBI		0x00000002	/*  DEBI done */
-
-#define RPS_SIG0		0x00200000	/*  RPS semaphore 0 (used by ADC). */
-#define RPS_SIG1		0x00400000	/*  RPS semaphore 1 (used by DAC). */
-#define RPS_SIG2		0x00800000	/*  RPS semaphore 2 (not used). */
-#define RPS_GPIO2		0x00080000	/*  RPS GPIO2 */
-#define RPS_GPIO3		0x00100000	/*  RPS GPIO3 */
-
-#define RPS_SIGADC		RPS_SIG0	/*  Trigger/status for ADC's RPS program. */
-#define RPS_SIGDAC		RPS_SIG1	/*  Trigger/status for DAC's RPS program. */
-
-/*  RPS clock parameters. */
-#define RPSCLK_SCALAR		8	/*  This is apparent ratio of PCI/RPS clks (undocumented!!). */
-#define RPSCLK_PER_US		(33 / RPSCLK_SCALAR)	/*  Number of RPS clocks in one microsecond. */
-
-/*  Event counter source addresses. */
-#define SBA_RPS_A0		0x27	/*  Time of RPS0 busy, in PCI clocks. */
-
-/*  GPIO constants. */
-#define GPIO_BASE		0x10004000	/*  GPIO 0,2,3 = inputs, GPIO3 = IRQ; GPIO1 = out. */
-#define GPIO1_LO		0x00000000	/*  GPIO1 set to LOW. */
-#define GPIO1_HI		0x00001000	/*  GPIO1 set to HIGH. */
-
-/*  Primary Status Register (PSR) constants. */
-#define PSR_DEBI_E		0x00040000	/*  DEBI event flag. */
-#define PSR_DEBI_S		0x00080000	/*  DEBI status flag. */
-#define PSR_A2_IN		0x00008000	/*  Audio output DMA2 protection address reached. */
-#define PSR_AFOU		0x00000800	/*  Audio FIFO under/overflow detected. */
-#define PSR_GPIO2		0x00000020	/*  GPIO2 input pin: 0=AdcBusy, 1=AdcIdle. */
-#define PSR_EC0S		0x00000001	/*  Event counter 0 threshold reached. */
-
-/*  Secondary Status Register (SSR) constants. */
-#define SSR_AF2_OUT		0x00000200	/*  Audio 2 output FIFO under/overflow detected. */
-
-/*  Master Control Register 1 (MC1) constants. */
-#define MC1_SOFT_RESET		0x80000000	/*  Invoke 7146 soft reset. */
-#define MC1_SHUTDOWN		0x3FFF0000	/*  Shut down all MC1-controlled enables. */
-
-#define MC1_ERPS1		0x2000	/*  enab/disable RPS task 1. */
-#define MC1_ERPS0		0x1000	/*  enab/disable RPS task 0. */
-#define MC1_DEBI		0x0800	/*  enab/disable DEBI pins. */
-#define MC1_AUDIO		0x0200	/*  enab/disable audio port pins. */
-#define MC1_I2C			0x0100	/*  enab/disable I2C interface. */
-#define MC1_A2OUT		0x0008	/*  enab/disable transfer on A2 out. */
-#define MC1_A2IN		0x0004	/*  enab/disable transfer on A2 in. */
-#define MC1_A1IN		0x0001	/*  enab/disable transfer on A1 in. */
-
-/*  Master Control Register 2 (MC2) constants. */
-#define MC2_UPLD_DEBIq		0x00020002	/*  Upload DEBI registers. */
-#define MC2_UPLD_IICq		0x00010001	/*  Upload I2C registers. */
-#define MC2_RPSSIG2_ONq		0x20002000	/*  Assert RPS_SIG2. */
-#define MC2_RPSSIG1_ONq		0x10001000	/*  Assert RPS_SIG1. */
-#define MC2_RPSSIG0_ONq		0x08000800	/*  Assert RPS_SIG0. */
-#define MC2_UPLD_DEBI_MASKq	0x00000002	/*  Upload DEBI mask. */
-#define MC2_UPLD_IIC_MASKq	0x00000001	/*  Upload I2C mask. */
-#define MC2_RPSSIG2_MASKq	0x00002000	/*  RPS_SIG2 bit mask. */
-#define MC2_RPSSIG1_MASKq	0x00001000	/*  RPS_SIG1 bit mask. */
-#define MC2_RPSSIG0_MASKq	0x00000800	/*  RPS_SIG0 bit mask. */
-
-#define MC2_DELAYTRIG_4USq	MC2_RPSSIG1_ON
-#define MC2_DELAYBUSY_4USq	MC2_RPSSIG1_MASK
-
-#define	MC2_DELAYTRIG_6USq	MC2_RPSSIG2_ON
-#define MC2_DELAYBUSY_6USq	MC2_RPSSIG2_MASK
-
-#define MC2_UPLD_DEBI		0x0002	/*  Upload DEBI. */
-#define MC2_UPLD_IIC		0x0001	/*  Upload I2C. */
-#define MC2_RPSSIG2		0x2000	/*  RPS signal 2 (not used). */
-#define MC2_RPSSIG1		0x1000	/*  RPS signal 1 (DAC RPS busy). */
-#define MC2_RPSSIG0		0x0800	/*  RPS signal 0 (ADC RPS busy). */
-
-#define MC2_ADC_RPS		MC2_RPSSIG0	/*  ADC RPS busy. */
-#define MC2_DAC_RPS		MC2_RPSSIG1	/*  DAC RPS busy. */
-
-/* ***** oldies ***** */
-#define MC2_UPLD_DEBIQ		0x00020002	/*  Upload DEBI registers. */
-#define MC2_UPLD_IICQ		0x00010001	/*  Upload I2C registers. */
-
-/*  PCI BUS (SAA7146) REGISTER ADDRESS OFFSETS */
+#define IRQ_COINT1A             0x0400	/* counter 1A overflow interrupt mask */
+#define IRQ_COINT1B             0x0800	/* counter 1B overflow interrupt mask */
+#define IRQ_COINT2A             0x1000	/* counter 2A overflow interrupt mask */
+#define IRQ_COINT2B             0x2000	/* counter 2B overflow interrupt mask */
+#define IRQ_COINT3A             0x4000	/* counter 3A overflow interrupt mask */
+#define IRQ_COINT3B             0x8000	/* counter 3B overflow interrupt mask */
+
+/* RPS command codes. */
+#define RPS_CLRSIGNAL		0x00000000	/* CLEAR SIGNAL */
+#define RPS_SETSIGNAL		0x10000000	/* SET SIGNAL */
+#define RPS_NOP			0x00000000	/* NOP */
+#define RPS_PAUSE		0x20000000	/* PAUSE */
+#define RPS_UPLOAD		0x40000000	/* UPLOAD */
+#define RPS_JUMP		0x80000000	/* JUMP */
+#define RPS_LDREG		0x90000100	/* LDREG (1 uint32_t only) */
+#define RPS_STREG		0xA0000100	/* STREG (1 uint32_t only) */
+#define RPS_STOP		0x50000000	/* STOP */
+#define RPS_IRQ                 0x60000000	/* IRQ */
+
+#define RPS_LOGICAL_OR		0x08000000	/* Logical OR conditionals. */
+#define RPS_INVERT		0x04000000	/* Test for negated
+						 * semaphores. */
+#define RPS_DEBI		0x00000002	/* DEBI done */
+
+#define RPS_SIG0		0x00200000	/* RPS semaphore 0
+						 * (used by ADC). */
+#define RPS_SIG1		0x00400000	/* RPS semaphore 1
+						 * (used by DAC). */
+#define RPS_SIG2		0x00800000	/* RPS semaphore 2
+						 * (not used). */
+#define RPS_GPIO2		0x00080000	/* RPS GPIO2 */
+#define RPS_GPIO3		0x00100000	/* RPS GPIO3 */
+
+#define RPS_SIGADC		RPS_SIG0	/* Trigger/status for
+						 * ADC's RPS program. */
+#define RPS_SIGDAC		RPS_SIG1	/* Trigger/status for
+						 * DAC's RPS program. */
+
+/* RPS clock parameters. */
+#define RPSCLK_SCALAR		8	/* This is apparent ratio of
+					 * PCI/RPS clks (undocumented!!). */
+#define RPSCLK_PER_US		(33 / RPSCLK_SCALAR)
+					/* Number of RPS clocks in one
+					 * microsecond. */
+
+/* Event counter source addresses. */
+#define SBA_RPS_A0		0x27	/* Time of RPS0 busy, in PCI clocks. */
+
+/* GPIO constants. */
+#define GPIO_BASE		0x10004000	/* GPIO 0,2,3 = inputs,
+						 * GPIO3 = IRQ; GPIO1 = out. */
+#define GPIO1_LO		0x00000000	/* GPIO1 set to LOW. */
+#define GPIO1_HI		0x00001000	/* GPIO1 set to HIGH. */
+
+/* Primary Status Register (PSR) constants. */
+#define PSR_DEBI_E		0x00040000	/* DEBI event flag. */
+#define PSR_DEBI_S		0x00080000	/* DEBI status flag. */
+#define PSR_A2_IN		0x00008000	/* Audio output DMA2 protection
+						 * address reached. */
+#define PSR_AFOU		0x00000800	/* Audio FIFO under/overflow
+						 * detected. */
+#define PSR_GPIO2		0x00000020	/* GPIO2 input pin: 0=AdcBusy,
+						 * 1=AdcIdle. */
+#define PSR_EC0S		0x00000001	/* Event counter 0 threshold
+						 * reached. */
+
+/* Secondary Status Register (SSR) constants. */
+#define SSR_AF2_OUT		0x00000200	/* Audio 2 output FIFO
+						 * under/overflow detected. */
+
+/* Master Control Register 1 (MC1) constants. */
+#define MC1_SOFT_RESET		0x80000000	/* Invoke 7146 soft reset. */
+#define MC1_SHUTDOWN		0x3FFF0000	/* Shut down all MC1-controlled
+						 * enables. */
+
+#define MC1_ERPS1		0x2000	/* Enab/disable RPS task 1. */
+#define MC1_ERPS0		0x1000	/* Enab/disable RPS task 0. */
+#define MC1_DEBI		0x0800	/* Enab/disable DEBI pins. */
+#define MC1_AUDIO		0x0200	/* Enab/disable audio port pins. */
+#define MC1_I2C			0x0100	/* Enab/disable I2C interface. */
+#define MC1_A2OUT		0x0008	/* Enab/disable transfer on A2 out. */
+#define MC1_A2IN		0x0004	/* Enab/disable transfer on A2 in. */
+#define MC1_A1IN		0x0001	/* Enab/disable transfer on A1 in. */
+
+/* Master Control Register 2 (MC2) constants. */
+#define MC2_UPLD_DEBI		0x0002	/* Upload DEBI. */
+#define MC2_UPLD_IIC		0x0001	/* Upload I2C. */
+#define MC2_RPSSIG2		0x2000	/* RPS signal 2 (not used). */
+#define MC2_RPSSIG1		0x1000	/* RPS signal 1 (DAC RPS busy). */
+#define MC2_RPSSIG0		0x0800	/* RPS signal 0 (ADC RPS busy). */
+
+#define MC2_ADC_RPS		MC2_RPSSIG0	/* ADC RPS busy. */
+#define MC2_DAC_RPS		MC2_RPSSIG1	/* DAC RPS busy. */
+
+/* PCI BUS (SAA7146) REGISTER ADDRESS OFFSETS */
 #define P_PCI_BT_A		0x004C	/* Audio DMA burst/threshold control. */
 #define P_DEBICFG               0x007C	/* DEBI configuration. */
 #define P_DEBICMD               0x0080	/* DEBI command. */
@@ -255,11 +221,11 @@
 #define P_TSL1                  0x0180	/* Audio time slot list 1. */
 #define P_TSL2                  0x01C0	/* Audio time slot list 2. */
 
-/*  LOCAL BUS (GATE ARRAY) REGISTER ADDRESS OFFSETS */
-/*  Analog I/O registers: */
-#define LP_DACPOL		0x0082	/*   Write DAC polarity. */
-#define LP_GSEL			0x0084	/*   Write ADC gain. */
-#define LP_ISEL			0x0086	/*   Write ADC channel select. */
+/* LOCAL BUS (GATE ARRAY) REGISTER ADDRESS OFFSETS */
+/* Analog I/O registers: */
+#define LP_DACPOL		0x0082	/* Write DAC polarity. */
+#define LP_GSEL			0x0084	/* Write ADC gain. */
+#define LP_ISEL			0x0086	/* Write ADC channel select. */
 
 /* Digital I/O registers */
 #define LP_RDDIN(x)		(0x0040 + (x) * 0x10)	/* R: digital input */
@@ -272,63 +238,61 @@
 #define LP_RDEDGSEL(x)		(0x004c + (x) * 0x10)	/* R: edge selection */
 #define LP_RDCAPSEL(x)		(0x004e + (x) * 0x10)	/* R: capture enable */
 
-/*  Counter Registers (read/write): */
-#define LP_CR0A			0x0000	/*   0A setup register. */
-#define LP_CR0B			0x0002	/*   0B setup register. */
-#define LP_CR1A			0x0004	/*   1A setup register. */
-#define LP_CR1B			0x0006	/*   1B setup register. */
-#define LP_CR2A			0x0008	/*   2A setup register. */
-#define LP_CR2B			0x000A	/*   2B setup register. */
-
-/*  Counter PreLoad (write) and Latch (read) Registers: */
-#define	LP_CNTR0ALSW		0x000C	/*   0A lsw. */
-#define	LP_CNTR0AMSW		0x000E	/*   0A msw. */
-#define	LP_CNTR0BLSW		0x0010	/*   0B lsw. */
-#define	LP_CNTR0BMSW		0x0012	/*   0B msw. */
-#define	LP_CNTR1ALSW		0x0014	/*   1A lsw. */
-#define	LP_CNTR1AMSW		0x0016	/*   1A msw. */
-#define	LP_CNTR1BLSW		0x0018	/*   1B lsw. */
-#define	LP_CNTR1BMSW		0x001A	/*   1B msw. */
-#define	LP_CNTR2ALSW		0x001C	/*   2A lsw. */
-#define	LP_CNTR2AMSW		0x001E	/*   2A msw. */
-#define	LP_CNTR2BLSW		0x0020	/*   2B lsw. */
-#define	LP_CNTR2BMSW		0x0022	/*   2B msw. */
-
-/*  Miscellaneous Registers (read/write): */
-#define LP_MISC1		0x0088	/*   Read/write Misc1. */
-#define LP_WRMISC2		0x0090	/*   Write Misc2. */
-#define LP_RDMISC2		0x0082	/*   Read Misc2. */
-
-/*  Bit masks for MISC1 register that are the same for reads and writes. */
+/* Counter Registers (read/write): */
+#define LP_CR0A			0x0000	/* 0A setup register. */
+#define LP_CR0B			0x0002	/* 0B setup register. */
+#define LP_CR1A			0x0004	/* 1A setup register. */
+#define LP_CR1B			0x0006	/* 1B setup register. */
+#define LP_CR2A			0x0008	/* 2A setup register. */
+#define LP_CR2B			0x000A	/* 2B setup register. */
+
+/* Counter PreLoad (write) and Latch (read) Registers: */
+#define	LP_CNTR0ALSW		0x000C	/* 0A lsw. */
+#define	LP_CNTR0AMSW		0x000E	/* 0A msw. */
+#define	LP_CNTR0BLSW		0x0010	/* 0B lsw. */
+#define	LP_CNTR0BMSW		0x0012	/* 0B msw. */
+#define	LP_CNTR1ALSW		0x0014	/* 1A lsw. */
+#define	LP_CNTR1AMSW		0x0016	/* 1A msw. */
+#define	LP_CNTR1BLSW		0x0018	/* 1B lsw. */
+#define	LP_CNTR1BMSW		0x001A	/* 1B msw. */
+#define	LP_CNTR2ALSW		0x001C	/* 2A lsw. */
+#define	LP_CNTR2AMSW		0x001E	/* 2A msw. */
+#define	LP_CNTR2BLSW		0x0020	/* 2B lsw. */
+#define	LP_CNTR2BMSW		0x0022	/* 2B msw. */
+
+/* Miscellaneous Registers (read/write): */
+#define LP_MISC1		0x0088	/* Read/write Misc1. */
+#define LP_WRMISC2		0x0090	/* Write Misc2. */
+#define LP_RDMISC2		0x0082	/* Read Misc2. */
+
+/* Bit masks for MISC1 register that are the same for reads and writes. */
 #define MISC1_WENABLE		0x8000	/* enab writes to MISC2 (except Clear
 					 * Watchdog bit). */
 #define MISC1_WDISABLE		0x0000	/* Disable writes to MISC2. */
-#define MISC1_EDCAP		0x1000	/* enab edge capture on DIO chans
+#define MISC1_EDCAP		0x1000	/* Enable edge capture on DIO chans
 					 * specified by  LP_WRCAPSELx. */
 #define MISC1_NOEDCAP		0x0000	/* Disable edge capture on specified
 					 * DIO chans. */
 
-/*  Bit masks for MISC1 register reads. */
-#define RDMISC1_WDTIMEOUT	0x4000	/*  Watchdog timer timed out. */
+/* Bit masks for MISC1 register reads. */
+#define RDMISC1_WDTIMEOUT	0x4000	/* Watchdog timer timed out. */
 
-/*  Bit masks for MISC2 register writes. */
-#define WRMISC2_WDCLEAR		0x8000	/*  Reset watchdog timer to zero. */
-#define WRMISC2_CHARGE_ENABLE	0x4000	/*  enab battery trickle charging. */
+/* Bit masks for MISC2 register writes. */
+#define WRMISC2_WDCLEAR		0x8000	/* Reset watchdog timer to zero. */
+#define WRMISC2_CHARGE_ENABLE	0x4000	/* Enable battery trickle charging. */
 
-/*  Bit masks for MISC2 register that are the same for reads and writes. */
-#define MISC2_BATT_ENABLE	0x0008	/*  Backup battery enable. */
-#define MISC2_WDENABLE		0x0004	/*  Watchdog timer enable. */
-#define MISC2_WDPERIOD_MASK	0x0003	/*  Watchdog interval */
-						/*  select mask. */
+/* Bit masks for MISC2 register that are the same for reads and writes. */
+#define MISC2_BATT_ENABLE	0x0008	/* Backup battery enable. */
+#define MISC2_WDENABLE		0x0004	/* Watchdog timer enable. */
+#define MISC2_WDPERIOD_MASK	0x0003	/* Watchdog interval select mask. */
 
-/*  Bit masks for ACON1 register. */
-#define A2_RUN			0x40000000	/*  Run A2 based on TSL2. */
-#define A1_RUN			0x20000000	/*  Run A1 based on TSL1. */
-#define A1_SWAP			0x00200000	/*  Use big-endian for A1. */
-#define A2_SWAP			0x00100000	/*  Use big-endian for A2. */
-#define WS_MODES		0x00019999	/*  WS0 = TSL1 trigger */
-						/*  input, WS1-WS4 = */
-						/*  CS* outputs. */
+/* Bit masks for ACON1 register. */
+#define A2_RUN			0x40000000	/* Run A2 based on TSL2. */
+#define A1_RUN			0x20000000	/* Run A1 based on TSL1. */
+#define A1_SWAP			0x00200000	/* Use big-endian for A1. */
+#define A2_SWAP			0x00100000	/* Use big-endian for A2. */
+#define WS_MODES		0x00019999	/* WS0 = TSL1 trigger input,
+						 * WS1-WS4 = CS* outputs. */
 
 #if PLATFORM == INTEL		/* Base ACON1 config: always run A1 based
 				 * on TSL1. */
@@ -338,266 +302,245 @@
 #endif
 
 #define ACON1_ADCSTART		ACON1_BASE	/* Start ADC: run A1
-						 *  based on TSL1. */
+						 * based on TSL1. */
 #define ACON1_DACSTART		(ACON1_BASE | A2_RUN)
 /* Start transmit to DAC: run A2 based on TSL2. */
-#define ACON1_DACSTOP		ACON1_BASE	/*  Halt A2. */
-
-/*  Bit masks for ACON2 register. */
-#define A1_CLKSRC_BCLK1		0x00000000	/*  A1 bit rate = BCLK1 (ADC). */
-#define A2_CLKSRC_X1		0x00800000	/*  A2 bit rate = ACLK/1 (DACs). */
-#define A2_CLKSRC_X2		0x00C00000	/*  A2 bit rate = ACLK/2 (DACs). */
-#define A2_CLKSRC_X4		0x01400000	/*  A2 bit rate = ACLK/4 (DACs). */
-#define INVERT_BCLK2		0x00100000	/*  Invert BCLK2 (DACs). */
-#define BCLK2_OE		0x00040000	/*  enab BCLK2 (DACs). */
-#define ACON2_XORMASK		0x000C0000	/*  XOR mask for ACON2 */
-						/*  active-low bits. */
-
-#define ACON2_INIT		(ACON2_XORMASK ^ (A1_CLKSRC_BCLK1 | A2_CLKSRC_X2 | INVERT_BCLK2 | BCLK2_OE))
-
-/*  Bit masks for timeslot records. */
-#define WS1		     	0x40000000	/*  WS output to assert. */
-#define WS2		     	0x20000000
-#define WS3		     	0x10000000
-#define WS4		     	0x08000000
+#define ACON1_DACSTOP		ACON1_BASE	/* Halt A2. */
+
+/* Bit masks for ACON2 register. */
+#define A1_CLKSRC_BCLK1		0x00000000	/* A1 bit rate = BCLK1 (ADC). */
+#define A2_CLKSRC_X1		0x00800000	/* A2 bit rate = ACLK/1
+						 * (DACs). */
+#define A2_CLKSRC_X2		0x00C00000	/* A2 bit rate = ACLK/2
+						 * (DACs). */
+#define A2_CLKSRC_X4		0x01400000	/* A2 bit rate = ACLK/4
+						 * (DACs). */
+#define INVERT_BCLK2		0x00100000	/* Invert BCLK2 (DACs). */
+#define BCLK2_OE		0x00040000	/* Enable BCLK2 (DACs). */
+#define ACON2_XORMASK		0x000C0000	/* XOR mask for ACON2
+						 * active-low bits. */
+
+#define ACON2_INIT		(ACON2_XORMASK ^ \
+				 (A1_CLKSRC_BCLK1 | A2_CLKSRC_X2 | \
+				  INVERT_BCLK2 | BCLK2_OE))
+
+/* Bit masks for timeslot records. */
+#define WS1			0x40000000	/* WS output to assert. */
+#define WS2			0x20000000
+#define WS3			0x10000000
+#define WS4			0x08000000
 #define RSD1			0x01000000	/* Shift A1 data in on SD1. */
-#define SDW_A1			0x00800000	/* Store rcv'd char at next
-						 * char slot of DWORD1 buffer. */
+#define SDW_A1			0x00800000	/* Store rcv'd char at next char
+						 * slot of DWORD1 buffer. */
 #define SIB_A1			0x00400000	/* Store rcv'd char at next
 						 * char slot of FB1 buffer. */
 #define SF_A1			0x00200000	/* Write unsigned long
 						 * buffer to input FIFO. */
 
 /* Select parallel-to-serial converter's data source: */
-#define XFIFO_0			0x00000000	/*    Data fifo byte 0. */
-#define XFIFO_1			0x00000010	/*    Data fifo byte 1. */
-#define XFIFO_2			0x00000020	/*    Data fifo byte 2. */
-#define XFIFO_3			0x00000030	/*    Data fifo byte 3. */
-#define XFB0			0x00000040	/*    FB_BUFFER byte 0. */
-#define XFB1			0x00000050	/*    FB_BUFFER byte 1. */
-#define XFB2			0x00000060	/*    FB_BUFFER byte 2. */
-#define XFB3			0x00000070	/*    FB_BUFFER byte 3. */
+#define XFIFO_0			0x00000000	/* Data fifo byte 0. */
+#define XFIFO_1			0x00000010	/* Data fifo byte 1. */
+#define XFIFO_2			0x00000020	/* Data fifo byte 2. */
+#define XFIFO_3			0x00000030	/* Data fifo byte 3. */
+#define XFB0			0x00000040	/* FB_BUFFER byte 0. */
+#define XFB1			0x00000050	/* FB_BUFFER byte 1. */
+#define XFB2			0x00000060	/* FB_BUFFER byte 2. */
+#define XFB3			0x00000070	/* FB_BUFFER byte 3. */
 #define SIB_A2			0x00000200	/* Store next dword from A2's
-						 * input shifter to FB2 buffer. */
+						 * input shifter to FB2
+						 * buffer. */
 #define SF_A2			0x00000100	/* Store next dword from A2's
 						 * input shifter to its input
 						 * fifo. */
 #define LF_A2			0x00000080	/* Load next dword from A2's
 						 * output fifo into its
 						 * output dword buffer. */
-#define XSD2			0x00000008	/*  Shift data out on SD2. */
-#define RSD3			0x00001800	/*  Shift data in on SD3. */
-#define RSD2			0x00001000	/*  Shift data in on SD2. */
-#define LOW_A2			0x00000002	/*  Drive last SD low */
-						/*  for 7 clks, then */
-						/*  tri-state. */
-#define EOS		     	0x00000001	/*  End of superframe. */
-
-/*  I2C configuration constants. */
-#define I2C_CLKSEL		0x0400
-/* I2C bit rate = PCIclk/480 = 68.75 KHz. */
-
-#define I2C_BITRATE		68.75
-/* I2C bus data bit rate (determined by I2C_CLKSEL) in KHz. */
-
-#define I2C_WRTIME		15.0
-/* Worst case time, in msec, for EEPROM internal write op. */
-
-/*  I2C manifest constants. */
-
-/*  Max retries to wait for EEPROM write. */
+#define XSD2			0x00000008	/* Shift data out on SD2. */
+#define RSD3			0x00001800	/* Shift data in on SD3. */
+#define RSD2			0x00001000	/* Shift data in on SD2. */
+#define LOW_A2			0x00000002	/* Drive last SD low for 7 clks,
+						 * then tri-state. */
+#define EOS			0x00000001	/* End of superframe. */
+
+/* I2C configuration constants. */
+#define I2C_CLKSEL		0x0400		/* I2C bit rate =
+						 * PCIclk/480 = 68.75 KHz. */
+#define I2C_BITRATE		68.75		/* I2C bus data bit rate
+						 * (determined by I2C_CLKSEL)
+						 * in KHz. */
+#define I2C_WRTIME		15.0		/* Worst case time, in msec,
+						 * for EEPROM internal write
+						 * op. */
+
+/* I2C manifest constants. */
+
+/* Max retries to wait for EEPROM write. */
 #define I2C_RETRIES		(I2C_WRTIME * I2C_BITRATE / 9.0)
-#define I2C_ERR			0x0002	/*  I2C control/status */
-						/*  flag ERROR. */
-#define I2C_BUSY		0x0001	/*  I2C control/status */
-						/*  flag BUSY. */
-#define I2C_ABORT		0x0080	/*  I2C status flag ABORT. */
-#define I2C_ATTRSTART		0x3	/*  I2C attribute START. */
-#define I2C_ATTRCONT		0x2	/*  I2C attribute CONT. */
-#define I2C_ATTRSTOP		0x1	/*  I2C attribute STOP. */
-#define I2C_ATTRNOP		0x0	/*  I2C attribute NOP. */
-
-/*  I2C read command  | EEPROM address. */
+#define I2C_ERR			0x0002	/* I2C control/status flag ERROR. */
+#define I2C_BUSY		0x0001	/* I2C control/status flag BUSY. */
+#define I2C_ABORT		0x0080	/* I2C status flag ABORT. */
+#define I2C_ATTRSTART		0x3	/* I2C attribute START. */
+#define I2C_ATTRCONT		0x2	/* I2C attribute CONT. */
+#define I2C_ATTRSTOP		0x1	/* I2C attribute STOP. */
+#define I2C_ATTRNOP		0x0	/* I2C attribute NOP. */
+
+/* I2C read command  | EEPROM address. */
 #define I2CR			(devpriv->I2CAdrs | 1)
 
-/*  I2C write command | EEPROM address. */
+/* I2C write command | EEPROM address. */
 #define I2CW			(devpriv->I2CAdrs)
 
-/*  Code macros used for constructing I2C command bytes. */
+/* Code macros used for constructing I2C command bytes. */
 #define I2C_B2(ATTR, VAL)	(((ATTR) << 6) | ((VAL) << 24))
 #define I2C_B1(ATTR, VAL)	(((ATTR) << 4) | ((VAL) << 16))
 #define I2C_B0(ATTR, VAL)	(((ATTR) << 2) | ((VAL) <<  8))
 
-/* oldest */
-#define P_DEBICFGq              0x007C	/*  DEBI configuration. */
-#define P_DEBICMDq              0x0080	/*  DEBI command. */
-#define P_DEBIPAGEq             0x0084	/*  DEBI page. */
-#define P_DEBIADq               0x0088	/*  DEBI target address. */
-
-#define DEBI_CFG_TOQ		0x03C00000	/*  timeout (15 PCI cycles) */
-#define DEBI_CFG_FASTQ		0x10000000	/*  fast mode enable */
-#define DEBI_CFG_16Q		0x00080000	/*  16-bit access enable */
-#define DEBI_CFG_INCQ		0x00040000	/*  enable address increment */
-#define DEBI_CFG_TIMEROFFQ	0x00010000	/*  disable timer */
-#define DEBI_CMD_RDQ		0x00050000	/*  read immediate 2 bytes */
-#define DEBI_CMD_WRQ		0x00040000	/*  write immediate 2 bytes */
-#define DEBI_PAGE_DISABLEQ	0x00000000	/*  paging disable */
-
-/*  DEBI command constants. */
-#define DEBI_CMD_SIZE16		(2 << 17)	/*  Transfer size is */
-						/*  always 2 bytes. */
-#define DEBI_CMD_READ		0x00010000	/*  Read operation. */
-#define DEBI_CMD_WRITE		0x00000000	/*  Write operation. */
-
-/*  Read immediate 2 bytes. */
-#define DEBI_CMD_RDWORD		(DEBI_CMD_READ  | DEBI_CMD_SIZE16)
-
-/*  Write immediate 2 bytes. */
+/* DEBI command constants. */
+#define DEBI_CMD_SIZE16		(2 << 17)	/* Transfer size is always
+						 * 2 bytes. */
+#define DEBI_CMD_READ		0x00010000	/* Read operation. */
+#define DEBI_CMD_WRITE		0x00000000	/* Write operation. */
+
+/* Read immediate 2 bytes. */
+#define DEBI_CMD_RDWORD		(DEBI_CMD_READ | DEBI_CMD_SIZE16)
+
+/* Write immediate 2 bytes. */
 #define DEBI_CMD_WRWORD		(DEBI_CMD_WRITE | DEBI_CMD_SIZE16)
 
-/*  DEBI configuration constants. */
-#define DEBI_CFG_XIRQ_EN	0x80000000	/*  enab external */
-						/*  interrupt on GPIO3. */
-#define DEBI_CFG_XRESUME	0x40000000	/*  Resume block */
-						/*  transfer when XIRQ */
-						/*  deasserted. */
-#define DEBI_CFG_FAST		0x10000000	/*  Fast mode enable. */
-
-/*  4-bit field that specifies DEBI timeout value in PCI clock cycles: */
-#define DEBI_CFG_TOUT_BIT	22	/*    Finish DEBI cycle after */
-					/*    this many clocks. */
-
-/*  2-bit field that specifies Endian byte lane steering: */
-#define DEBI_CFG_SWAP_NONE	0x00000000	/*    Straight - don't */
-						/*    swap any bytes */
-						/*    (Intel). */
-#define DEBI_CFG_SWAP_2		0x00100000	/*    2-byte swap (Motorola). */
-#define DEBI_CFG_SWAP_4		0x00200000	/*    4-byte swap. */
-#define DEBI_CFG_16		0x00080000	/*  Slave is able to */
-						/*  serve 16-bit */
-						/*  cycles. */
-
-#define DEBI_CFG_SLAVE16	0x00080000	/*  Slave is able to */
-						/*  serve 16-bit */
-						/*  cycles. */
-#define DEBI_CFG_INC		0x00040000	/*  enab address */
-						/*  increment for block */
-						/*  transfers. */
-#define DEBI_CFG_INTEL		0x00020000	/*  Intel style local bus. */
-#define DEBI_CFG_TIMEROFF	0x00010000	/*  Disable timer. */
+/* DEBI configuration constants. */
+#define DEBI_CFG_XIRQ_EN	0x80000000	/* Enable external interrupt
+						 * on GPIO3. */
+#define DEBI_CFG_XRESUME	0x40000000	/* Resume block */
+						/* Transfer when XIRQ
+						 * deasserted. */
+#define DEBI_CFG_TOQ		0x03C00000	/* Timeout (15 PCI cycles). */
+#define DEBI_CFG_FAST		0x10000000	/* Fast mode enable. */
+
+/* 4-bit field that specifies DEBI timeout value in PCI clock cycles: */
+#define DEBI_CFG_TOUT_BIT	22	/* Finish DEBI cycle after this many
+					 * clocks. */
+
+/* 2-bit field that specifies Endian byte lane steering: */
+#define DEBI_CFG_SWAP_NONE	0x00000000	/* Straight - don't swap any
+						 * bytes (Intel). */
+#define DEBI_CFG_SWAP_2		0x00100000	/* 2-byte swap (Motorola). */
+#define DEBI_CFG_SWAP_4		0x00200000	/* 4-byte swap. */
+#define DEBI_CFG_SLAVE16	0x00080000	/* Slave is able to serve
+						 * 16-bit cycles. */
+#define DEBI_CFG_INC		0x00040000	/* Enable address increment
+						 * for block transfers. */
+#define DEBI_CFG_INTEL		0x00020000	/* Intel style local bus. */
+#define DEBI_CFG_TIMEROFF	0x00010000	/* Disable timer. */
 
 #if PLATFORM == INTEL
 
-#define DEBI_TOUT		7	/*  Wait 7 PCI clocks */
-						/*  (212 ns) before */
-						/*  polling RDY. */
+#define DEBI_TOUT		7	/* Wait 7 PCI clocks (212 ns) before
+					 * polling RDY. */
 
-/*  Intel byte lane steering (pass through all byte lanes). */
+/* Intel byte lane steering (pass through all byte lanes). */
 #define DEBI_SWAP		DEBI_CFG_SWAP_NONE
 
 #elif PLATFORM == MOTOROLA
 
-#define DEBI_TOUT		15	/*  Wait 15 PCI clocks (454 ns) */
-					/*  maximum before timing out. */
-#define DEBI_SWAP		DEBI_CFG_SWAP_2	/*  Motorola byte lane steering. */
+#define DEBI_TOUT		15	/* Wait 15 PCI clocks (454 ns) maximum
+					 * before timing out. */
+
+/* Motorola byte lane steering. */
+#define DEBI_SWAP		DEBI_CFG_SWAP_2
 
 #endif
 
-/*  DEBI page table constants. */
-#define DEBI_PAGE_DISABLE	0x00000000	/*  Paging disable. */
-
-/* ******* EXTRA FROM OTHER SANSORAY  * .h  ******* */
-
-/*  LoadSrc values: */
-#define LOADSRC_INDX		0	/*  Preload core in response to */
-					/*  Index. */
-#define LOADSRC_OVER		1	/*  Preload core in response to */
-					/*  Overflow. */
-#define LOADSRCB_OVERA		2	/*  Preload B core in response */
-					/*  to A Overflow. */
-#define LOADSRC_NONE		3	/*  Never preload core. */
-
-/*  IntSrc values: */
-#define INTSRC_NONE 		0	/*  Interrupts disabled. */
-#define INTSRC_OVER 		1	/*  Interrupt on Overflow. */
-#define INTSRC_INDX 		2	/*  Interrupt on Index. */
-#define INTSRC_BOTH 		3	/*  Interrupt on Index or Overflow. */
-
-/*  LatchSrc values: */
-#define LATCHSRC_AB_READ	0	/*  Latch on read. */
-#define LATCHSRC_A_INDXA	1	/*  Latch A on A Index. */
-#define LATCHSRC_B_INDXB	2	/*  Latch B on B Index. */
-#define LATCHSRC_B_OVERA	3	/*  Latch B on A Overflow. */
-
-/*  IndxSrc values: */
-#define INDXSRC_HARD		0	/*  Hardware or software index. */
-#define INDXSRC_SOFT		1	/*  Software index only. */
-
-/*  IndxPol values: */
-#define INDXPOL_POS 		0	/*  Index input is active high. */
-#define INDXPOL_NEG 		1	/*  Index input is active low. */
-
-/*  ClkSrc values: */
-#define CLKSRC_COUNTER		0	/*  Counter mode. */
-#define CLKSRC_TIMER		2	/*  Timer mode. */
-#define CLKSRC_EXTENDER		3	/*  Extender mode. */
-
-/*  ClkPol values: */
-#define CLKPOL_POS		0	/*  Counter/Extender clock is */
-					/*  active high. */
-#define CLKPOL_NEG		1	/*  Counter/Extender clock is */
-					/*  active low. */
-#define CNTDIR_UP		0	/*  Timer counts up. */
-#define CNTDIR_DOWN 		1	/*  Timer counts down. */
-
-/*  ClkEnab values: */
-#define CLKENAB_ALWAYS		0	/*  Clock always enabled. */
-#define CLKENAB_INDEX		1	/*  Clock is enabled by index. */
-
-/*  ClkMult values: */
-#define CLKMULT_4X 		0	/*  4x clock multiplier. */
-#define CLKMULT_2X 		1	/*  2x clock multiplier. */
-#define CLKMULT_1X 		2	/*  1x clock multiplier. */
-
-/*  Bit Field positions in COUNTER_SETUP structure: */
-#define BF_LOADSRC		9	/*  Preload trigger. */
-#define BF_INDXSRC		7	/*  Index source. */
-#define BF_INDXPOL		6	/*  Index polarity. */
-#define BF_CLKSRC		4	/*  Clock source. */
-#define BF_CLKPOL		3	/*  Clock polarity/count direction. */
-#define BF_CLKMULT		1	/*  Clock multiplier. */
-#define BF_CLKENAB		0	/*  Clock enable. */
-
-/*  Enumerated counter operating modes specified by ClkSrc bit field in */
-/*  a COUNTER_SETUP. */
-
-#define CLKSRC_COUNTER		0	/*  Counter: ENC_C clock, ENC_D */
-					/*  direction. */
-#define CLKSRC_TIMER		2	/*  Timer: SYS_C clock, */
-					/*  direction specified by */
-					/*  ClkPol. */
-#define CLKSRC_EXTENDER		3	/*  Extender: OVR_A clock, */
-					/*  ENC_D direction. */
-
-/*  Enumerated counter clock multipliers. */
-
-#define MULT_X0			0x0003	/*  Supports no multipliers; */
-					/*  fixed physical multiplier = */
-					/*  3. */
-#define MULT_X1			0x0002	/*  Supports multiplier x1; */
-					/*  fixed physical multiplier = */
-					/*  2. */
-#define MULT_X2			0x0001	/*  Supports multipliers x1, */
-					/*  x2; physical multipliers = */
-					/*  1 or 2. */
-#define MULT_X4			0x0000	/*  Supports multipliers x1, */
-					/*  x2, x4; physical */
-					/*  multipliers = 0, 1 or 2. */
-
-/*  Sanity-check limits for parameters. */
-
-#define NUM_COUNTERS		6	/*  Maximum valid counter */
-					/*  logical channel number. */
+/* DEBI page table constants. */
+#define DEBI_PAGE_DISABLE	0x00000000	/* Paging disable. */
+
+/* ******* EXTRA FROM OTHER SENSORAY  * .h  ******* */
+
+/* LoadSrc values: */
+#define LOADSRC_INDX		0	/* Preload core in response to Index. */
+#define LOADSRC_OVER		1	/* Preload core in response to
+					 * Overflow. */
+#define LOADSRCB_OVERA		2	/* Preload B core in response to
+					 * A Overflow. */
+#define LOADSRC_NONE		3	/* Never preload core. */
+
+/* IntSrc values: */
+#define INTSRC_NONE		0	/* Interrupts disabled. */
+#define INTSRC_OVER		1	/* Interrupt on Overflow. */
+#define INTSRC_INDX		2	/* Interrupt on Index. */
+#define INTSRC_BOTH		3	/* Interrupt on Index or Overflow. */
+
+/* LatchSrc values: */
+#define LATCHSRC_AB_READ	0	/* Latch on read. */
+#define LATCHSRC_A_INDXA	1	/* Latch A on A Index. */
+#define LATCHSRC_B_INDXB	2	/* Latch B on B Index. */
+#define LATCHSRC_B_OVERA	3	/* Latch B on A Overflow. */
+
+/* IndxSrc values: */
+#define INDXSRC_HARD		0	/* Hardware or software index. */
+#define INDXSRC_SOFT		1	/* Software index only. */
+
+/* IndxPol values: */
+#define INDXPOL_POS		0	/* Index input is active high. */
+#define INDXPOL_NEG		1	/* Index input is active low. */
+
+/* ClkSrc values: */
+#define CLKSRC_COUNTER		0	/* Counter mode. */
+#define CLKSRC_TIMER		2	/* Timer mode. */
+#define CLKSRC_EXTENDER		3	/* Extender mode. */
+
+/* ClkPol values: */
+#define CLKPOL_POS		0	/* Counter/Extender clock is
+					 * active high. */
+#define CLKPOL_NEG		1	/* Counter/Extender clock is
+					 * active low. */
+#define CNTDIR_UP		0	/* Timer counts up. */
+#define CNTDIR_DOWN		1	/* Timer counts down. */
+
+/* ClkEnab values: */
+#define CLKENAB_ALWAYS		0	/* Clock always enabled. */
+#define CLKENAB_INDEX		1	/* Clock is enabled by index. */
+
+/* ClkMult values: */
+#define CLKMULT_4X		0	/* 4x clock multiplier. */
+#define CLKMULT_2X		1	/* 2x clock multiplier. */
+#define CLKMULT_1X		2	/* 1x clock multiplier. */
+
+/* Bit Field positions in COUNTER_SETUP structure: */
+#define BF_LOADSRC		9	/* Preload trigger. */
+#define BF_INDXSRC		7	/* Index source. */
+#define BF_INDXPOL		6	/* Index polarity. */
+#define BF_CLKSRC		4	/* Clock source. */
+#define BF_CLKPOL		3	/* Clock polarity/count direction. */
+#define BF_CLKMULT		1	/* Clock multiplier. */
+#define BF_CLKENAB		0	/* Clock enable. */
+
+/*
+ * Enumerated counter operating modes specified by ClkSrc bit field in
+ * a COUNTER_SETUP.
+ */
+
+#define CLKSRC_COUNTER		0	/* Counter: ENC_C clock,
+					 * ENC_D direction. */
+#define CLKSRC_TIMER		2	/* Timer: SYS_C clock, direction
+					 * specified by ClkPol. */
+#define CLKSRC_EXTENDER		3	/* Extender: OVR_A clock,
+					 * ENC_D direction. */
+
+/* Enumerated counter clock multipliers. */
+
+#define MULT_X0			0x0003	/* Supports no multipliers;
+					 * fixed physical multiplier = 3. */
+#define MULT_X1			0x0002	/* Supports multiplier x1;
+					 * fixed physical multiplier = 2. */
+#define MULT_X2			0x0001	/* Supports multipliers x1, x2;
+					 * physical multipliers = 1 or 2. */
+#define MULT_X4			0x0000	/* Supports multipliers x1, x2, x4;
+					 * physical multipliers = 0, 1 or 2. */
+
+/* Sanity-check limits for parameters. */
+
+#define NUM_COUNTERS		6	/* Maximum valid counter
+					 * logical channel number. */
 #define NUM_INTSOURCES		4
 #define NUM_LATCHSOURCES	4
 #define NUM_CLKMULTS		4
@@ -607,33 +550,33 @@
 #define NUM_INDEXSOURCES	2
 #define NUM_LOADTRIGS		4
 
-/*  Bit field positions in CRA and CRB counter control registers. */
-
-/*  Bit field positions in CRA: */
-#define CRABIT_INDXSRC_B	14	/*    B index source. */
-#define CRABIT_CLKSRC_B		12	/*    B clock source. */
-#define CRABIT_INDXPOL_A	11	/*    A index polarity. */
-#define CRABIT_LOADSRC_A	 9	/*    A preload trigger. */
-#define CRABIT_CLKMULT_A	 7	/*    A clock multiplier. */
-#define CRABIT_INTSRC_A		 5	/*    A interrupt source. */
-#define CRABIT_CLKPOL_A		 4	/*    A clock polarity. */
-#define CRABIT_INDXSRC_A	 2	/*    A index source. */
-#define CRABIT_CLKSRC_A		 0	/*    A clock source. */
-
-/*  Bit field positions in CRB: */
-#define CRBBIT_INTRESETCMD	15	/*    Interrupt reset command. */
-#define CRBBIT_INTRESET_B	14	/*    B interrupt reset enable. */
-#define CRBBIT_INTRESET_A	13	/*    A interrupt reset enable. */
-#define CRBBIT_CLKENAB_A	12	/*    A clock enable. */
-#define CRBBIT_INTSRC_B		10	/*    B interrupt source. */
-#define CRBBIT_LATCHSRC		 8	/*    A/B latch source. */
-#define CRBBIT_LOADSRC_B	 6	/*    B preload trigger. */
-#define CRBBIT_CLKMULT_B	 3	/*    B clock multiplier. */
-#define CRBBIT_CLKENAB_B	 2	/*    B clock enable. */
-#define CRBBIT_INDXPOL_B	 1	/*    B index polarity. */
-#define CRBBIT_CLKPOL_B		 0	/*    B clock polarity. */
-
-/*  Bit field masks for CRA and CRB. */
+/* Bit field positions in CRA and CRB counter control registers. */
+
+/* Bit field positions in CRA: */
+#define CRABIT_INDXSRC_B	14	/* B index source. */
+#define CRABIT_CLKSRC_B		12	/* B clock source. */
+#define CRABIT_INDXPOL_A	11	/* A index polarity. */
+#define CRABIT_LOADSRC_A	 9	/* A preload trigger. */
+#define CRABIT_CLKMULT_A	 7	/* A clock multiplier. */
+#define CRABIT_INTSRC_A		 5	/* A interrupt source. */
+#define CRABIT_CLKPOL_A		 4	/* A clock polarity. */
+#define CRABIT_INDXSRC_A	 2	/* A index source. */
+#define CRABIT_CLKSRC_A		 0	/* A clock source. */
+
+/* Bit field positions in CRB: */
+#define CRBBIT_INTRESETCMD	15	/* Interrupt reset command. */
+#define CRBBIT_INTRESET_B	14	/* B interrupt reset enable. */
+#define CRBBIT_INTRESET_A	13	/* A interrupt reset enable. */
+#define CRBBIT_CLKENAB_A	12	/* A clock enable. */
+#define CRBBIT_INTSRC_B		10	/* B interrupt source. */
+#define CRBBIT_LATCHSRC		 8	/* A/B latch source. */
+#define CRBBIT_LOADSRC_B	 6	/* B preload trigger. */
+#define CRBBIT_CLKMULT_B	 3	/* B clock multiplier. */
+#define CRBBIT_CLKENAB_B	 2	/* B clock enable. */
+#define CRBBIT_INDXPOL_B	 1	/* B index polarity. */
+#define CRBBIT_CLKPOL_B		 0	/* B clock polarity. */
+
+/* Bit field masks for CRA and CRB. */
 
 #define CRAMSK_INDXSRC_B	(3 << CRABIT_INDXSRC_B)
 #define CRAMSK_CLKSRC_B		(3 << CRABIT_CLKSRC_B)
@@ -657,9 +600,11 @@
 #define CRBMSK_INDXPOL_B	(1 << CRBBIT_INDXPOL_B)
 #define CRBMSK_CLKPOL_B		(1 << CRBBIT_CLKPOL_B)
 
-#define CRBMSK_INTCTRL		(CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A | CRBMSK_INTRESET_B)	/*  Interrupt reset control bits. */
+/* Interrupt reset control bits. */
+#define CRBMSK_INTCTRL		\
+	(CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A | CRBMSK_INTRESET_B)
 
-/*  Bit field positions for standardized SETUP structure. */
+/* Bit field positions for standardized SETUP structure. */
 
 #define STDBIT_INTSRC		13
 #define STDBIT_LATCHSRC		11
@@ -671,7 +616,7 @@
 #define STDBIT_CLKMULT		 1
 #define STDBIT_CLKENAB		 0
 
-/*  Bit field masks for standardized SETUP structure. */
+/* Bit field masks for standardized SETUP structure. */
 
 #define STDMSK_INTSRC		(3 << STDBIT_INTSRC)
 #define STDMSK_LATCHSRC		(3 << STDBIT_LATCHSRC)
@@ -688,3 +633,5 @@ struct bufferDMA {
 	void *LogicalBase;
 	uint32_t DMAHandle;
 };
+
+#endif
-- 
cgit 


From 7f32c7c4444222f786bd052d02f5fb545820b8df Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:16 +0100
Subject: staging: comedi: s626: tidy up comments at top of file

Make the comments at the top of the file conform to the CodingStyle.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 114 +++++++++++++++++-----------------
 1 file changed, 57 insertions(+), 57 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 4eb4e7160bc3..4ac30ad7f1be 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -1,63 +1,63 @@
 /*
-  comedi/drivers/s626.c
-  Sensoray s626 Comedi driver
-
-  COMEDI - Linux Control and Measurement Device Interface
-  Copyright (C) 2000 David A. Schleef <ds@schleef.org>
-
-  Based on Sensoray Model 626 Linux driver Version 0.2
-  Copyright (C) 2002-2004 Sensoray Co., Inc.
-
-  This program is free software; you can redistribute it and/or modify
-  it under the terms of the GNU General Public License as published by
-  the Free Software Foundation; either version 2 of the License, or
-  (at your option) any later version.
-
-  This program is distributed in the hope that it will be useful,
-  but WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-  GNU General Public License for more details.
-*/
+ * comedi/drivers/s626.c
+ * Sensoray s626 Comedi driver
+ *
+ * COMEDI - Linux Control and Measurement Device Interface
+ * Copyright (C) 2000 David A. Schleef <ds@schleef.org>
+ *
+ * Based on Sensoray Model 626 Linux driver Version 0.2
+ * Copyright (C) 2002-2004 Sensoray Co., Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
 
 /*
-Driver: s626
-Description: Sensoray 626 driver
-Devices: [Sensoray] 626 (s626)
-Authors: Gianluca Palli <gpalli@deis.unibo.it>,
-Updated: Fri, 15 Feb 2008 10:28:42 +0000
-Status: experimental
-
-Configuration options: not applicable, uses PCI auto config
-
-INSN_CONFIG instructions:
-  analog input:
-   none
-
-  analog output:
-   none
-
-  digital channel:
-   s626 has 3 dio subdevices (2,3 and 4) each with 16 i/o channels
-   supported configuration options:
-   INSN_CONFIG_DIO_QUERY
-   COMEDI_INPUT
-   COMEDI_OUTPUT
-
-  encoder:
-   Every channel must be configured before reading.
-
-   Example code
-
-   insn.insn=INSN_CONFIG;   //configuration instruction
-   insn.n=1;                //number of operation (must be 1)
-   insn.data=&initialvalue; //initial value loaded into encoder
-				//during configuration
-   insn.subdev=5;           //encoder subdevice
-   insn.chanspec=CR_PACK(encoder_channel,0,AREF_OTHER); //encoder_channel
-							//to configure
-
-   comedi_do_insn(cf,&insn); //executing configuration
-*/
+ * Driver: s626
+ * Description: Sensoray 626 driver
+ * Devices: [Sensoray] 626 (s626)
+ * Authors: Gianluca Palli <gpalli@deis.unibo.it>,
+ * Updated: Fri, 15 Feb 2008 10:28:42 +0000
+ * Status: experimental
+
+ * Configuration options: not applicable, uses PCI auto config
+
+ * INSN_CONFIG instructions:
+ *   analog input:
+ *    none
+ *
+ *   analog output:
+ *    none
+ *
+ *   digital channel:
+ *    s626 has 3 dio subdevices (2,3 and 4) each with 16 i/o channels
+ *    supported configuration options:
+ *    INSN_CONFIG_DIO_QUERY
+ *    COMEDI_INPUT
+ *    COMEDI_OUTPUT
+ *
+ *   encoder:
+ *    Every channel must be configured before reading.
+ *
+ *   Example code
+ *
+ *    insn.insn=INSN_CONFIG;   //configuration instruction
+ *    insn.n=1;                //number of operation (must be 1)
+ *    insn.data=&initialvalue; //initial value loaded into encoder
+ *                             //during configuration
+ *    insn.subdev=5;           //encoder subdevice
+ *    insn.chanspec=CR_PACK(encoder_channel,0,AREF_OTHER); //encoder_channel
+ *                                                         //to configure
+ *
+ *    comedi_do_insn(cf,&insn); //executing configuration
+ */
 
 #include <linux/module.h>
 #include <linux/delay.h>
-- 
cgit 


From 8ee52611415320d86f45c1d9c5f510bc8beffcf9 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:17 +0100
Subject: staging: comedi: s626: tidy up main source code file

Tidy up the source code in "s626.c" and make it (slightly) more
readable.  It's mostly whitespace changes although some large statements
have been split into smaller statements.  It fixes most of the
checkpatch errors and warnings.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 1353 ++++++++++++++++++---------------
 1 file changed, 760 insertions(+), 593 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 4ac30ad7f1be..99d1bed395ec 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -78,61 +78,78 @@
 
 struct s626_private {
 	void __iomem *mmio;
-	uint8_t ai_cmd_running;	/*  ai_cmd is running */
-	uint8_t ai_continous;	/*  continous acquisition */
-	int ai_sample_count;	/*  number of samples to acquire */
-	unsigned int ai_sample_timer;
-	/*  time between samples in  units of the timer */
-	int ai_convert_count;	/*  conversion counter */
-	unsigned int ai_convert_timer;
-	/*  time between conversion in  units of the timer */
-	uint16_t CounterIntEnabs;
-	/* Counter interrupt enable  mask for MISC2 register. */
-	uint8_t AdcItems;	/* Number of items in ADC poll  list. */
-	struct bufferDMA RPSBuf;	/* DMA buffer used to hold ADC (RPS1) program. */
-	struct bufferDMA ANABuf;
-	/* DMA buffer used to receive ADC data and hold DAC data. */
-	uint32_t *pDacWBuf;
-	/* Pointer to logical adrs of DMA buffer used to hold DAC  data. */
-	uint16_t Dacpol;	/* Image of DAC polarity register. */
-	uint8_t TrimSetpoint[12];	/* Images of TrimDAC setpoints */
-	/* Charge Enabled (0 or WRMISC2_CHARGE_ENABLE). */
-	uint32_t I2CAdrs;
-	/* I2C device address for onboard EEPROM (board rev dependent). */
-	/*   short         I2Cards; */
+	uint8_t ai_cmd_running;		/* ai_cmd is running */
+	uint8_t ai_continous;		/* continuous acquisition */
+	int ai_sample_count;		/* number of samples to acquire */
+	unsigned int ai_sample_timer;	/* time between samples in
+					 * units of the timer */
+	int ai_convert_count;		/* conversion counter */
+	unsigned int ai_convert_timer;	/* time between conversion in
+					 * units of the timer */
+	uint16_t CounterIntEnabs;	/* counter interrupt enable mask
+					 * for MISC2 register */
+	uint8_t AdcItems;		/* number of items in ADC poll list */
+	struct bufferDMA RPSBuf;	/* DMA buffer used to hold ADC (RPS1)
+					 * program */
+	struct bufferDMA ANABuf;	/* DMA buffer used to receive ADC data
+					 * and hold DAC data */
+	uint32_t *pDacWBuf;		/* pointer to logical adrs of DMA buffer
+					 * used to hold DAC data */
+	uint16_t Dacpol;		/* image of DAC polarity register */
+	uint8_t TrimSetpoint[12];	/* images of TrimDAC setpoints */
+	uint32_t I2CAdrs;		/* I2C device address for onboard EEPROM
+					 * (board rev dependent) */
 	unsigned int ao_readback[S626_DAC_CHANNELS];
 };
 
-/*  COUNTER OBJECT ------------------------------------------------ */
+/* COUNTER OBJECT ------------------------------------------------ */
 struct enc_private {
-	/*  Pointers to functions that differ for A and B counters: */
-	uint16_t(*GetEnable) (struct comedi_device *dev, struct enc_private *);	/* Return clock enable. */
-	uint16_t(*GetIntSrc) (struct comedi_device *dev, struct enc_private *);	/* Return interrupt source. */
-	uint16_t(*GetLoadTrig) (struct comedi_device *dev, struct enc_private *);	/* Return preload trigger source. */
-	uint16_t(*GetMode) (struct comedi_device *dev, struct enc_private *);	/* Return standardized operating mode. */
-	void (*PulseIndex) (struct comedi_device *dev, struct enc_private *);	/* Generate soft index strobe. */
-	void (*SetEnable) (struct comedi_device *dev, struct enc_private *, uint16_t enab);	/* Program clock enable. */
-	void (*SetIntSrc) (struct comedi_device *dev, struct enc_private *, uint16_t IntSource);	/* Program interrupt source. */
-	void (*SetLoadTrig) (struct comedi_device *dev, struct enc_private *, uint16_t Trig);	/* Program preload trigger source. */
-	void (*SetMode) (struct comedi_device *dev, struct enc_private *, uint16_t Setup, uint16_t DisableIntSrc);	/* Program standardized operating mode. */
-	void (*ResetCapFlags) (struct comedi_device *dev, struct enc_private *);	/* Reset event capture flags. */
-
-	uint16_t MyCRA;		/*    Address of CRA register. */
-	uint16_t MyCRB;		/*    Address of CRB register. */
-	uint16_t MyLatchLsw;	/*    Address of Latch least-significant-word */
-	/*    register. */
-	uint16_t MyEventBits[4];	/*    Bit translations for IntSrc -->RDMISC2. */
+	/* Pointers to functions that differ for A and B counters: */
+	/* Return clock enable. */
+	uint16_t(*GetEnable)(struct comedi_device *dev, struct enc_private *);
+	/* Return interrupt source. */
+	uint16_t(*GetIntSrc)(struct comedi_device *dev, struct enc_private *);
+	/* Return preload trigger source. */
+	uint16_t(*GetLoadTrig)(struct comedi_device *dev, struct enc_private *);
+	/* Return standardized operating mode. */
+	uint16_t(*GetMode)(struct comedi_device *dev, struct enc_private *);
+	/* Generate soft index strobe. */
+	void (*PulseIndex)(struct comedi_device *dev, struct enc_private *);
+	/* Program clock enable. */
+	void (*SetEnable)(struct comedi_device *dev, struct enc_private *,
+			  uint16_t enab);
+	/* Program interrupt source. */
+	void (*SetIntSrc)(struct comedi_device *dev, struct enc_private *,
+			  uint16_t IntSource);
+	/* Program preload trigger source. */
+	void (*SetLoadTrig)(struct comedi_device *dev, struct enc_private *,
+			    uint16_t Trig);
+	/* Program standardized operating mode. */
+	void (*SetMode)(struct comedi_device *dev, struct enc_private *,
+			uint16_t Setup, uint16_t DisableIntSrc);
+	/* Reset event capture flags. */
+	void (*ResetCapFlags)(struct comedi_device *dev, struct enc_private *);
+
+	uint16_t MyCRA;		/* address of CRA register */
+	uint16_t MyCRB;		/* address of CRB register */
+	uint16_t MyLatchLsw;	/* address of Latch least-significant-word
+				 * register */
+	uint16_t MyEventBits[4]; /* bit translations for IntSrc -->RDMISC2 */
 };
 
 #define encpriv ((struct enc_private *)(dev->subdevices+5)->private)
 
-/*  Counter overflow/index event flag masks for RDMISC2. */
-#define INDXMASK(C)		(1 << (((C) > 2) ? ((C) * 2 - 1) : ((C) * 2 +  4)))
-#define OVERMASK(C)		(1 << (((C) > 2) ? ((C) * 2 + 5) : ((C) * 2 + 10)))
-#define EVBITS(C)		{ 0, OVERMASK(C), INDXMASK(C), OVERMASK(C) | INDXMASK(C) }
+/* Counter overflow/index event flag masks for RDMISC2. */
+#define INDXMASK(C)	(1 << (((C) > 2) ? ((C) * 2 - 1) : ((C) * 2 +  4)))
+#define OVERMASK(C)	(1 << (((C) > 2) ? ((C) * 2 + 5) : ((C) * 2 + 10)))
+#define EVBITS(C)	{ 0, OVERMASK(C), INDXMASK(C), \
+			  OVERMASK(C) | INDXMASK(C) }
 
-/*  Translation table to map IntSrc into equivalent RDMISC2 event flag  bits. */
-/* static const uint16_t EventBits[][4] = { EVBITS(0), EVBITS(1), EVBITS(2), EVBITS(3), EVBITS(4), EVBITS(5) }; */
+/*
+ * Translation table to map IntSrc into equivalent RDMISC2 event flag  bits.
+ * static const uint16_t EventBits[][4] =
+ *     { EVBITS(0), EVBITS(1), EVBITS(2), EVBITS(3), EVBITS(4), EVBITS(5) };
+ */
 
 /*
  * Enable/disable a function or test status bit(s) that are accessed
@@ -168,10 +185,10 @@ static bool s626_mc_test(struct comedi_device *dev,
 
 #define BUGFIX_STREG(REGADRS)   (REGADRS - 4)
 
-/*  Write a time slot control record to TSL2. */
+/* Write a time slot control record to TSL2. */
 #define VECTPORT(VECTNUM)		(P_TSL2 + ((VECTNUM) << 2))
 
-/*  Code macros used for constructing I2C command bytes. */
+/* Code macros used for constructing I2C command bytes. */
 #define I2C_B2(ATTR, VAL)	(((ATTR) << 6) | ((VAL) << 24))
 #define I2C_B1(ATTR, VAL)	(((ATTR) << 4) | ((VAL) << 16))
 #define I2C_B0(ATTR, VAL)	(((ATTR) << 2) | ((VAL) <<  8))
@@ -183,8 +200,9 @@ static const struct comedi_lrange s626_range_table = {
 	}
 };
 
-/*  Execute a DEBI transfer.  This must be called from within a */
-/*  critical section. */
+/*
+ * Execute a DEBI transfer.  This must be called from within a critical section.
+ */
 static void DEBItransfer(struct comedi_device *dev)
 {
 	struct s626_private *devpriv = dev->private;
@@ -204,8 +222,9 @@ static void DEBItransfer(struct comedi_device *dev)
 		;
 }
 
-/*  Initialize the DEBI interface for all transfers. */
-
+/*
+ * Read a value from a gate array register.
+ */
 static uint16_t DEBIread(struct comedi_device *dev, uint16_t addr)
 {
 	struct s626_private *devpriv = dev->private;
@@ -219,7 +238,9 @@ static uint16_t DEBIread(struct comedi_device *dev, uint16_t addr)
 	return readl(devpriv->mmio + P_DEBIAD);
 }
 
-/*  Write a value to a gate array register. */
+/*
+ * Write a value to a gate array register.
+ */
 static void DEBIwrite(struct comedi_device *dev, uint16_t addr, uint16_t wdata)
 {
 	struct s626_private *devpriv = dev->private;
@@ -232,7 +253,8 @@ static void DEBIwrite(struct comedi_device *dev, uint16_t addr, uint16_t wdata)
 	DEBItransfer(dev);
 }
 
-/* Replace the specified bits in a gate array register.  Imports: mask
+/*
+ * Replace the specified bits in a gate array register.  Imports: mask
  * specifies bits that are to be preserved, wdata is new value to be
  * or'd with the masked original.
  */
@@ -281,54 +303,54 @@ static uint32_t I2Chandshake(struct comedi_device *dev, uint32_t val)
 	return ctrl & I2C_ERR;
 }
 
-/*  Read uint8_t from EEPROM. */
+/* Read uint8_t from EEPROM. */
 static uint8_t I2Cread(struct comedi_device *dev, uint8_t addr)
 {
 	struct s626_private *devpriv = dev->private;
 
-	/*  Send EEPROM target address. */
-	if (I2Chandshake(dev, I2C_B2(I2C_ATTRSTART, I2CW)
-			 /* Byte2 = I2C command: write to I2C EEPROM  device. */
-			 | I2C_B1(I2C_ATTRSTOP, addr)
-			 /* Byte1 = EEPROM internal target address. */
-			 | I2C_B0(I2C_ATTRNOP, 0))) {	/*  Byte0 = Not sent. */
-		/*  Abort function and declare error if handshake failed. */
+	/*
+	 * Send EEPROM target address:
+	 *  Byte2 = I2C command: write to I2C EEPROM device.
+	 *  Byte1 = EEPROM internal target address.
+	 *  Byte0 = Not sent.
+	 */
+	if (I2Chandshake(dev, I2C_B2(I2C_ATTRSTART, I2CW) |
+			      I2C_B1(I2C_ATTRSTOP, addr) |
+			      I2C_B0(I2C_ATTRNOP, 0)))
+		/* Abort function and declare error if handshake failed. */
 		return 0;
-	}
-	/*  Execute EEPROM read. */
-	if (I2Chandshake(dev, I2C_B2(I2C_ATTRSTART, I2CR)
-
-			 /*  Byte2 = I2C */
-			 /*  command: read */
-			 /*  from I2C EEPROM */
-			 /*  device. */
-			 |I2C_B1(I2C_ATTRSTOP, 0)
 
-			 /*  Byte1 receives */
-			 /*  uint8_t from */
-			 /*  EEPROM. */
-			 |I2C_B0(I2C_ATTRNOP, 0))) {	/*  Byte0 = Not  sent. */
-
-		/*  Abort function and declare error if handshake failed. */
+	/*
+	 * Execute EEPROM read:
+	 *  Byte2 = I2C command: read from I2C EEPROM device.
+	 *  Byte1 receives uint8_t from EEPROM.
+	 *  Byte0 = Not sent.
+	 */
+	if (I2Chandshake(dev, I2C_B2(I2C_ATTRSTART, I2CR) |
+			      I2C_B1(I2C_ATTRSTOP, 0) |
+			      I2C_B0(I2C_ATTRNOP, 0)))
+		/* Abort function and declare error if handshake failed. */
 		return 0;
-	}
 
 	return (readl(devpriv->mmio + P_I2CCTRL) >> 16) & 0xff;
 }
 
 /* ***********  DAC FUNCTIONS *********** */
 
-/*  Slot 0 base settings. */
+/* Slot 0 base settings. */
 #define VECT0	(XSD2 | RSD3 | SIB_A2)
-/*  Slot 0 always shifts in  0xFF and store it to  FB_BUFFER2. */
+/* Slot 0 always shifts in  0xFF and store it to  FB_BUFFER2. */
 
-/*  TrimDac LogicalChan-to-PhysicalChan mapping table. */
+/* TrimDac LogicalChan-to-PhysicalChan mapping table. */
 static uint8_t trimchan[] = { 10, 9, 8, 3, 2, 7, 6, 1, 0, 5, 4 };
 
-/*  TrimDac LogicalChan-to-EepromAdrs mapping table. */
-static uint8_t trimadrs[] = { 0x40, 0x41, 0x42, 0x50, 0x51, 0x52, 0x53, 0x60, 0x61, 0x62, 0x63 };
+/* TrimDac LogicalChan-to-EepromAdrs mapping table. */
+static uint8_t trimadrs[] = {
+	0x40, 0x41, 0x42, 0x50, 0x51, 0x52, 0x53, 0x60, 0x61, 0x62, 0x63
+};
 
-/* Private helper function: Transmit serial data to DAC via Audio
+/*
+ * Private helper function: Transmit serial data to DAC via Audio
  * channel 2.  Assumes: (1) TSL2 slot records initialized, and (2)
  * Dacpol contains valid target image.
  */
@@ -338,7 +360,8 @@ static void SendDAC(struct comedi_device *dev, uint32_t val)
 
 	/* START THE SERIAL CLOCK RUNNING ------------- */
 
-	/* Assert DAC polarity control and enable gating of DAC serial clock
+	/*
+	 * Assert DAC polarity control and enable gating of DAC serial clock
 	 * and audio bit stream signals.  At this point in time we must be
 	 * assured of being in time slot 0.  If we are not in slot 0, the
 	 * serial clock and audio stream signals will be disabled; this is
@@ -352,7 +375,6 @@ static void SendDAC(struct comedi_device *dev, uint32_t val)
 	/* TRANSFER OUTPUT DWORD VALUE INTO A2'S OUTPUT FIFO ---------------- */
 
 	/* Copy DAC setpoint value to DAC's output DMA buffer. */
-
 	/* writel(val, devpriv->mmio + (uint32_t)devpriv->pDacWBuf); */
 	*devpriv->pDacWBuf = val;
 
@@ -364,7 +386,7 @@ static void SendDAC(struct comedi_device *dev, uint32_t val)
 	 */
 	s626_mc_enable(dev, MC1_A2OUT, P_MC1);
 
-	/*  While the DMA transfer is executing ... */
+	/* While the DMA transfer is executing ... */
 
 	/*
 	 * Reset Audio2 output FIFO's underflow flag (along with any
@@ -373,7 +395,8 @@ static void SendDAC(struct comedi_device *dev, uint32_t val)
 	 */
 	writel(ISR_AFOU, devpriv->mmio + P_ISR);
 
-	/* Wait for the DMA transfer to finish so that there will be data
+	/*
+	 * Wait for the DMA transfer to finish so that there will be data
 	 * available in the FIFO when time slot 1 tries to transfer a DWORD
 	 * from the FIFO to the output buffer register.  We test for DMA
 	 * Done by polling the DMAC enable flag; this flag is automatically
@@ -384,14 +407,16 @@ static void SendDAC(struct comedi_device *dev, uint32_t val)
 
 	/* START THE OUTPUT STREAM TO THE TARGET DAC -------------------- */
 
-	/* FIFO data is now available, so we enable execution of time slots
+	/*
+	 * FIFO data is now available, so we enable execution of time slots
 	 * 1 and higher by clearing the EOS flag in slot 0.  Note that SD3
 	 * will be shifted in and stored in FB_BUFFER2 for end-of-slot-list
 	 * detection.
 	 */
 	writel(XSD2 | RSD3 | SIB_A2, devpriv->mmio + VECTPORT(0));
 
-	/* Wait for slot 1 to execute to ensure that the Packet will be
+	/*
+	 * Wait for slot 1 to execute to ensure that the Packet will be
 	 * transmitted.  This is detected by polling the Audio2 output FIFO
 	 * underflow flag, which will be set when slot 1 execution has
 	 * finished transferring the DAC's data DWORD from the output FIFO
@@ -400,7 +425,8 @@ static void SendDAC(struct comedi_device *dev, uint32_t val)
 	while (!(readl(devpriv->mmio + P_SSR) & SSR_AF2_OUT))
 		;
 
-	/* Set up to trap execution at slot 0 when the TSL sequencer cycles
+	/*
+	 * Set up to trap execution at slot 0 when the TSL sequencer cycles
 	 * back to slot 0 after executing the EOS in slot 5.  Also,
 	 * simultaneously shift out and in the 0x00 that is ALWAYS the value
 	 * stored in the last byte to be shifted out of the FIFO's DWORD
@@ -411,7 +437,8 @@ static void SendDAC(struct comedi_device *dev, uint32_t val)
 
 	/* WAIT FOR THE TRANSACTION TO FINISH ----------------------- */
 
-	/* Wait for the TSL to finish executing all time slots before
+	/*
+	 * Wait for the TSL to finish executing all time slots before
 	 * exiting this function.  We must do this so that the next DAC
 	 * write doesn't start, thereby enabling clock/chip select signals:
 	 *
@@ -429,7 +456,8 @@ static void SendDAC(struct comedi_device *dev, uint32_t val)
 	 *    the TSL has not yet finished executing slot 5 ...
 	 */
 	if (readl(devpriv->mmio + P_FB_BUFFER2) & 0xff000000) {
-		/* The trap was set on time and we are still executing somewhere
+		/*
+		 * The trap was set on time and we are still executing somewhere
 		 * in slots 2-5, so we now wait for slot 0 to execute and trap
 		 * TSL execution.  This is detected when FB_BUFFER2 MSB changes
 		 * from 0xFF to 0x00, which slot 0 causes to happen by shifting
@@ -438,7 +466,8 @@ static void SendDAC(struct comedi_device *dev, uint32_t val)
 		while (readl(devpriv->mmio + P_FB_BUFFER2) & 0xff000000)
 			;
 	}
-	/* Either (1) we were too late setting the slot 0 trap; the TSL
+	/*
+	 * Either (1) we were too late setting the slot 0 trap; the TSL
 	 * sequencer restarted slot 0 before we could set the EOS trap flag,
 	 * or (2) we were not late and execution is now trapped at slot 0.
 	 * In either case, we must now change slot 0 so that it will store
@@ -448,7 +477,8 @@ static void SendDAC(struct comedi_device *dev, uint32_t val)
 	 */
 	writel(RSD3 | SIB_A2 | EOS, devpriv->mmio + VECTPORT(0));
 
-	/* Wait for slot 0 to execute, at which time the TSL is setup for
+	/*
+	 * Wait for slot 0 to execute, at which time the TSL is setup for
 	 * the next DAC write.  This is detected when FB_BUFFER2 MSB changes
 	 * from 0x00 to 0xFF.
 	 */
@@ -456,27 +486,33 @@ static void SendDAC(struct comedi_device *dev, uint32_t val)
 		;
 }
 
-/*  Private helper function: Write setpoint to an application DAC channel. */
+/*
+ * Private helper function: Write setpoint to an application DAC channel.
+ */
 static void SetDAC(struct comedi_device *dev, uint16_t chan, short dacdata)
 {
 	struct s626_private *devpriv = dev->private;
-	register uint16_t signmask;
-	register uint32_t WSImage;
+	uint16_t signmask;
+	uint32_t WSImage;
+	uint32_t val;
 
-	/*  Adjust DAC data polarity and set up Polarity Control Register */
-	/*  image. */
+	/*
+	 * Adjust DAC data polarity and set up Polarity Control Register image.
+	 */
 	signmask = 1 << chan;
 	if (dacdata < 0) {
 		dacdata = -dacdata;
 		devpriv->Dacpol |= signmask;
-	} else
+	} else {
 		devpriv->Dacpol &= ~signmask;
+	}
 
-	/*  Limit DAC setpoint value to valid range. */
-	if ((uint16_t) dacdata > 0x1FFF)
+	/* Limit DAC setpoint value to valid range. */
+	if ((uint16_t)dacdata > 0x1FFF)
 		dacdata = 0x1FFF;
 
-	/* Set up TSL2 records (aka "vectors") for DAC update.  Vectors V2
+	/*
+	 * Set up TSL2 records (aka "vectors") for DAC update.  Vectors V2
 	 * and V3 transmit the setpoint to the target DAC.  V4 and V5 send
 	 * data to a non-existent TrimDac channel just to keep the clock
 	 * running after sending data to the target DAC.  This is necessary
@@ -497,21 +533,21 @@ static void SetDAC(struct comedi_device *dev, uint16_t chan, short dacdata)
 	/* Slot 5: running after writing target DAC's low data byte */
 	writel(XSD2 | XFIFO_2 | WS3 | EOS, devpriv->mmio + VECTPORT(5));
 
-	/*  Construct and transmit target DAC's serial packet:
-	 * ( A10D DDDD ),( DDDD DDDD ),( 0x0F ),( 0x00 ) where A is chan<0>,
+	/*
+	 * Construct and transmit target DAC's serial packet:
+	 * (A10D DDDD), (DDDD DDDD), (0x0F), (0x00) where A is chan<0>,
 	 * and D<12:0> is the DAC setpoint.  Append a WORD value (that writes
 	 * to a  non-existent TrimDac channel) that serves to keep the clock
 	 * running after the packet has been sent to the target DAC.
 	 */
-	SendDAC(dev, 0x0F000000
-		/* Continue clock after target DAC data (write to non-existent trimdac). */
-		| 0x00004000
-		/* Address the two main dual-DAC devices (TSL's chip select enables
-		 * target device). */
-		| ((uint32_t) (chan & 1) << 15)
-		/*  Address the DAC channel within the  device. */
-		| (uint32_t) dacdata);	/*  Include DAC setpoint data. */
-
+	val = 0x0F000000;	/* Continue clock after target DAC data
+				 * (write to non-existent trimdac). */
+	val |= 0x00004000;	/* Address the two main dual-DAC devices
+				 * (TSL's chip select enables target device). */
+	val |= ((uint32_t)(chan & 1) << 15);	/* Address the DAC channel
+						 * within the device. */
+	val |= (uint32_t)dacdata;	/* Include DAC setpoint data. */
+	SendDAC(dev, val);
 }
 
 static void WriteTrimDAC(struct comedi_device *dev, uint8_t LogicalChan,
@@ -520,13 +556,17 @@ static void WriteTrimDAC(struct comedi_device *dev, uint8_t LogicalChan,
 	struct s626_private *devpriv = dev->private;
 	uint32_t chan;
 
-	/*  Save the new setpoint in case the application needs to read it back later. */
-	devpriv->TrimSetpoint[LogicalChan] = (uint8_t) DacData;
+	/*
+	 * Save the new setpoint in case the application needs to read it back
+	 * later.
+	 */
+	devpriv->TrimSetpoint[LogicalChan] = (uint8_t)DacData;
 
-	/*  Map logical channel number to physical channel number. */
-	chan = (uint32_t) trimchan[LogicalChan];
+	/* Map logical channel number to physical channel number. */
+	chan = trimchan[LogicalChan];
 
-	/* Set up TSL2 records for TrimDac write operation.  All slots shift
+	/*
+	 * Set up TSL2 records for TrimDac write operation.  All slots shift
 	 * 0xFF in from pulled-up SD3 so that the end of the slot sequence
 	 * can be detected.
 	 */
@@ -540,69 +580,77 @@ static void WriteTrimDAC(struct comedi_device *dev, uint8_t LogicalChan,
 	/* Slot 5: Send NOP low  uint8_t to DAC0 */
 	writel(XSD2 | XFIFO_2 | WS1 | EOS, devpriv->mmio + VECTPORT(5));
 
-	/* Construct and transmit target DAC's serial packet:
-	 * ( 0000 AAAA ), ( DDDD DDDD ),( 0x00 ),( 0x00 ) where A<3:0> is the
+	/*
+	 * Construct and transmit target DAC's serial packet:
+	 * (0000 AAAA), (DDDD DDDD), (0x00), (0x00) where A<3:0> is the
 	 * DAC channel's address, and D<7:0> is the DAC setpoint.  Append a
 	 * WORD value (that writes a channel 0 NOP command to a non-existent
 	 * main DAC channel) that serves to keep the clock running after the
 	 * packet has been sent to the target DAC.
 	 */
 
-	/*  Address the DAC channel within the trimdac device. */
-	SendDAC(dev, ((uint32_t) chan << 8)
-		| (uint32_t) DacData);	/*  Include DAC setpoint data. */
+	/*
+	 * Address the DAC channel within the trimdac device.
+	 * Include DAC setpoint data.
+	 */
+	SendDAC(dev, (chan << 8) | DacData);
 }
 
 static void LoadTrimDACs(struct comedi_device *dev)
 {
-	register uint8_t i;
+	uint8_t i;
 
-	/*  Copy TrimDac setpoint values from EEPROM to TrimDacs. */
+	/* Copy TrimDac setpoint values from EEPROM to TrimDacs. */
 	for (i = 0; i < ARRAY_SIZE(trimchan); i++)
 		WriteTrimDAC(dev, i, I2Cread(dev, trimadrs[i]));
 }
 
 /* ******  COUNTER FUNCTIONS  ******* */
-/* All counter functions address a specific counter by means of the
+
+/*
+ * All counter functions address a specific counter by means of the
  * "Counter" argument, which is a logical counter number.  The Counter
  * argument may have any of the following legal values: 0=0A, 1=1A,
  * 2=2A, 3=0B, 4=1B, 5=2B.
  */
 
-/*  Read a counter's output latch. */
+/*
+ * Read a counter's output latch.
+ */
 static uint32_t ReadLatch(struct comedi_device *dev, struct enc_private *k)
 {
-	register uint32_t value;
+	uint32_t value;
 
-	/*  Latch counts and fetch LSW of latched counts value. */
-	value = (uint32_t) DEBIread(dev, k->MyLatchLsw);
+	/* Latch counts and fetch LSW of latched counts value. */
+	value = DEBIread(dev, k->MyLatchLsw);
 
-	/*  Fetch MSW of latched counts and combine with LSW. */
-	value |= ((uint32_t) DEBIread(dev, k->MyLatchLsw + 2) << 16);
+	/* Fetch MSW of latched counts and combine with LSW. */
+	value |= ((uint32_t)DEBIread(dev, k->MyLatchLsw + 2) << 16);
 
-	/*  Return latched counts. */
+	/* Return latched counts. */
 	return value;
 }
 
-/* Return/set a counter pair's latch trigger source.  0: On read
+/*
+ * Return/set a counter pair's latch trigger source.  0: On read
  * access, 1: A index latches A, 2: B index latches B, 3: A overflow
  * latches B.
  */
 static void SetLatchSource(struct comedi_device *dev, struct enc_private *k,
 			   uint16_t value)
 {
-	DEBIreplace(dev, k->MyCRB,
-		    ~(CRBMSK_INTCTRL | CRBMSK_LATCHSRC),
+	DEBIreplace(dev, k->MyCRB, ~(CRBMSK_INTCTRL | CRBMSK_LATCHSRC),
 		    value << CRBBIT_LATCHSRC);
 }
 
-/*  Write value into counter preload register. */
+/*
+ * Write value into counter preload register.
+ */
 static void Preload(struct comedi_device *dev, struct enc_private *k,
 		    uint32_t value)
 {
-	DEBIwrite(dev, (uint16_t) (k->MyLatchLsw), (uint16_t) value);
-	DEBIwrite(dev, (uint16_t) (k->MyLatchLsw + 2),
-		  (uint16_t) (value >> 16));
+	DEBIwrite(dev, k->MyLatchLsw, value);
+	DEBIwrite(dev, k->MyLatchLsw + 2, value >> 16);
 }
 
 static unsigned int s626_ai_reg_to_uint(int data)
@@ -618,10 +666,6 @@ static unsigned int s626_ai_reg_to_uint(int data)
 	return tempdata;
 }
 
-/* static unsigned int s626_uint_to_reg(struct comedi_subdevice *s, int data){ */
-/*   return 0; */
-/* } */
-
 static int s626_dio_set_irq(struct comedi_device *dev, unsigned int chan)
 {
 	unsigned int group = chan / 16;
@@ -879,7 +923,7 @@ static irqreturn_t s626_irq_handler(int irq, void *d)
 
 	if (!dev->attached)
 		return IRQ_NONE;
-	/*  lock to avoid race with comedi_poll */
+	/* lock to avoid race with comedi_poll */
 	spin_lock_irqsave(&dev->spinlock, flags);
 
 	/* save interrupt enable register state */
@@ -895,11 +939,11 @@ static irqreturn_t s626_irq_handler(int irq, void *d)
 	writel(irqtype, devpriv->mmio + P_ISR);
 
 	switch (irqtype) {
-	case IRQ_RPS1:		/*  end_of_scan occurs */
+	case IRQ_RPS1:	/* end_of_scan occurs */
 		if (handle_eos_interrupt(dev))
 			irqstatus = 0;
 		break;
-	case IRQ_GPIO3:	/* check dio and conter interrupt */
+	case IRQ_GPIO3:	/* check dio and counter interrupt */
 		/* s626_dio_clear_irq(dev); */
 		check_dio_interrupts(dev);
 		check_counter_interrupts(dev);
@@ -914,153 +958,152 @@ static irqreturn_t s626_irq_handler(int irq, void *d)
 }
 
 /*
- * this functions build the RPS program for hardware driven acquistion
+ * This function builds the RPS program for hardware driven acquisition.
  */
 static void ResetADC(struct comedi_device *dev, uint8_t *ppl)
 {
 	struct s626_private *devpriv = dev->private;
-	register uint32_t *pRPS;
+	uint32_t *pRPS;
 	uint32_t JmpAdrs;
 	uint16_t i;
 	uint16_t n;
 	uint32_t LocalPPL;
-	struct comedi_cmd *cmd = &(dev->subdevices->async->cmd);
+	struct comedi_cmd *cmd = &dev->subdevices->async->cmd;
 
 	/* Stop RPS program in case it is currently running */
 	s626_mc_disable(dev, MC1_ERPS1, P_MC1);
 
-	/*  Set starting logical address to write RPS commands. */
-	pRPS = (uint32_t *) devpriv->RPSBuf.LogicalBase;
+	/* Set starting logical address to write RPS commands. */
+	pRPS = (uint32_t *)devpriv->RPSBuf.LogicalBase;
 
 	/* Initialize RPS instruction pointer */
 	writel((uint32_t)devpriv->RPSBuf.PhysicalBase,
 	       devpriv->mmio + P_RPSADDR1);
 
-	/*  Construct RPS program in RPSBuf DMA buffer */
-
+	/* Construct RPS program in RPSBuf DMA buffer */
 	if (cmd != NULL && cmd->scan_begin_src != TRIG_FOLLOW) {
-		/*  Wait for Start trigger. */
+		/* Wait for Start trigger. */
 		*pRPS++ = RPS_PAUSE | RPS_SIGADC;
 		*pRPS++ = RPS_CLRSIGNAL | RPS_SIGADC;
 	}
 
-	/* SAA7146 BUG WORKAROUND Do a dummy DEBI Write.  This is necessary
+	/*
+	 * SAA7146 BUG WORKAROUND Do a dummy DEBI Write.  This is necessary
 	 * because the first RPS DEBI Write following a non-RPS DEBI write
 	 * seems to always fail.  If we don't do this dummy write, the ADC
 	 * gain might not be set to the value required for the first slot in
 	 * the poll list; the ADC gain would instead remain unchanged from
 	 * the previously programmed value.
 	 */
-	*pRPS++ = RPS_LDREG | (P_DEBICMD >> 2);
 	/* Write DEBI Write command and address to shadow RAM. */
-
+	*pRPS++ = RPS_LDREG | (P_DEBICMD >> 2);
 	*pRPS++ = DEBI_CMD_WRWORD | LP_GSEL;
 	*pRPS++ = RPS_LDREG | (P_DEBIAD >> 2);
-	/*  Write DEBI immediate data  to shadow RAM: */
-
-	*pRPS++ = GSEL_BIPOLAR5V;
-	/*  arbitrary immediate data  value. */
-
+	/* Write DEBI immediate data  to shadow RAM: */
+	*pRPS++ = GSEL_BIPOLAR5V;	/* arbitrary immediate data  value. */
 	*pRPS++ = RPS_CLRSIGNAL | RPS_DEBI;
-	/*  Reset "shadow RAM  uploaded" flag. */
-	*pRPS++ = RPS_UPLOAD | RPS_DEBI;	/*  Invoke shadow RAM upload. */
-	*pRPS++ = RPS_PAUSE | RPS_DEBI;	/*  Wait for shadow upload to finish. */
+	/* Reset "shadow RAM  uploaded" flag. */
+	*pRPS++ = RPS_UPLOAD | RPS_DEBI;	/* Invoke shadow RAM upload. */
+	*pRPS++ = RPS_PAUSE | RPS_DEBI;	/* Wait for shadow upload to finish. */
 
-	/* Digitize all slots in the poll list. This is implemented as a
+	/*
+	 * Digitize all slots in the poll list. This is implemented as a
 	 * for loop to limit the slot count to 16 in case the application
 	 * forgot to set the EOPL flag in the final slot.
 	 */
-	for (devpriv->AdcItems = 0; devpriv->AdcItems < 16; devpriv->AdcItems++) {
-		/* Convert application's poll list item to private board class
+	for (devpriv->AdcItems = 0; devpriv->AdcItems < 16;
+	     devpriv->AdcItems++) {
+		/*
+		 * Convert application's poll list item to private board class
 		 * format.  Each app poll list item is an uint8_t with form
 		 * (EOPL,x,x,RANGE,CHAN<3:0>), where RANGE code indicates 0 =
 		 * +-10V, 1 = +-5V, and EOPL = End of Poll List marker.
 		 */
-		LocalPPL =
-		    (*ppl << 8) | (*ppl & 0x10 ? GSEL_BIPOLAR5V :
-				   GSEL_BIPOLAR10V);
-
-		/*  Switch ADC analog gain. */
-		*pRPS++ = RPS_LDREG | (P_DEBICMD >> 2);	/*  Write DEBI command */
-		/*  and address to */
-		/*  shadow RAM. */
+		LocalPPL = (*ppl << 8) | (*ppl & 0x10 ? GSEL_BIPOLAR5V :
+					  GSEL_BIPOLAR10V);
+
+		/* Switch ADC analog gain. */
+		/* Write DEBI command and address to shadow RAM. */
+		*pRPS++ = RPS_LDREG | (P_DEBICMD >> 2);
 		*pRPS++ = DEBI_CMD_WRWORD | LP_GSEL;
-		*pRPS++ = RPS_LDREG | (P_DEBIAD >> 2);	/*  Write DEBI */
-		/*  immediate data to */
-		/*  shadow RAM. */
+		/* Write DEBI immediate data to shadow RAM. */
+		*pRPS++ = RPS_LDREG | (P_DEBIAD >> 2);
 		*pRPS++ = LocalPPL;
-		*pRPS++ = RPS_CLRSIGNAL | RPS_DEBI;	/*  Reset "shadow RAM uploaded" */
-		/*  flag. */
-		*pRPS++ = RPS_UPLOAD | RPS_DEBI;	/*  Invoke shadow RAM upload. */
-		*pRPS++ = RPS_PAUSE | RPS_DEBI;	/*  Wait for shadow upload to */
-		/*  finish. */
-
-		/*  Select ADC analog input channel. */
+		/* Reset "shadow RAM uploaded" flag. */
+		*pRPS++ = RPS_CLRSIGNAL | RPS_DEBI;
+		/* Invoke shadow RAM upload. */
+		*pRPS++ = RPS_UPLOAD | RPS_DEBI;
+		/* Wait for shadow upload to finish. */
+		*pRPS++ = RPS_PAUSE | RPS_DEBI;
+		/* Select ADC analog input channel. */
 		*pRPS++ = RPS_LDREG | (P_DEBICMD >> 2);
-		/*  Write DEBI command and address to  shadow RAM. */
+		/* Write DEBI command and address to shadow RAM. */
 		*pRPS++ = DEBI_CMD_WRWORD | LP_ISEL;
 		*pRPS++ = RPS_LDREG | (P_DEBIAD >> 2);
-		/*  Write DEBI immediate data to shadow RAM. */
+		/* Write DEBI immediate data to shadow RAM. */
 		*pRPS++ = LocalPPL;
+		/* Reset "shadow RAM uploaded" flag. */
 		*pRPS++ = RPS_CLRSIGNAL | RPS_DEBI;
-		/*  Reset "shadow RAM uploaded"  flag. */
-
+		/* Invoke shadow RAM upload. */
 		*pRPS++ = RPS_UPLOAD | RPS_DEBI;
-		/*  Invoke shadow RAM upload. */
-
+		/* Wait for shadow upload to finish. */
 		*pRPS++ = RPS_PAUSE | RPS_DEBI;
-		/*  Wait for shadow upload to finish. */
 
-		/* Delay at least 10 microseconds for analog input settling.
+		/*
+		 * Delay at least 10 microseconds for analog input settling.
 		 * Instead of padding with NOPs, we use RPS_JUMP instructions
 		 * here; this allows us to produce a longer delay than is
 		 * possible with NOPs because each RPS_JUMP flushes the RPS'
 		 * instruction prefetch pipeline.
 		 */
 		JmpAdrs =
-		    (uint32_t) devpriv->RPSBuf.PhysicalBase +
-		    (uint32_t) ((unsigned long)pRPS -
-				(unsigned long)devpriv->RPSBuf.LogicalBase);
+			(uint32_t)devpriv->RPSBuf.PhysicalBase +
+			(uint32_t)((unsigned long)pRPS -
+				   (unsigned long)devpriv->RPSBuf.LogicalBase);
 		for (i = 0; i < (10 * RPSCLK_PER_US / 2); i++) {
-			JmpAdrs += 8;	/*  Repeat to implement time delay: */
-			*pRPS++ = RPS_JUMP;	/*  Jump to next RPS instruction. */
+			JmpAdrs += 8;	/* Repeat to implement time delay: */
+			*pRPS++ = RPS_JUMP; /* Jump to next RPS instruction. */
 			*pRPS++ = JmpAdrs;
 		}
 
 		if (cmd != NULL && cmd->convert_src != TRIG_NOW) {
-			/*  Wait for Start trigger. */
+			/* Wait for Start trigger. */
 			*pRPS++ = RPS_PAUSE | RPS_SIGADC;
 			*pRPS++ = RPS_CLRSIGNAL | RPS_SIGADC;
 		}
-		/*  Start ADC by pulsing GPIO1. */
-		*pRPS++ = RPS_LDREG | (P_GPIO >> 2);	/*  Begin ADC Start pulse. */
+		/* Start ADC by pulsing GPIO1. */
+		/* Begin ADC Start pulse. */
+		*pRPS++ = RPS_LDREG | (P_GPIO >> 2);
 		*pRPS++ = GPIO_BASE | GPIO1_LO;
 		*pRPS++ = RPS_NOP;
-		/*  VERSION 2.03 CHANGE: STRETCH OUT ADC START PULSE. */
-		*pRPS++ = RPS_LDREG | (P_GPIO >> 2);	/*  End ADC Start pulse. */
+		/* VERSION 2.03 CHANGE: STRETCH OUT ADC START PULSE. */
+		/* End ADC Start pulse. */
+		*pRPS++ = RPS_LDREG | (P_GPIO >> 2);
 		*pRPS++ = GPIO_BASE | GPIO1_HI;
-
-		/* Wait for ADC to complete (GPIO2 is asserted high when ADC not
+		/*
+		 * Wait for ADC to complete (GPIO2 is asserted high when ADC not
 		 * busy) and for data from previous conversion to shift into FB
 		 * BUFFER 1 register.
 		 */
-		*pRPS++ = RPS_PAUSE | RPS_GPIO2;	/*  Wait for ADC done. */
+		*pRPS++ = RPS_PAUSE | RPS_GPIO2;	/* Wait for ADC done. */
 
-		/*  Transfer ADC data from FB BUFFER 1 register to DMA buffer. */
+		/* Transfer ADC data from FB BUFFER 1 register to DMA buffer. */
 		*pRPS++ = RPS_STREG | (BUGFIX_STREG(P_FB_BUFFER1) >> 2);
-		*pRPS++ =
-		    (uint32_t) devpriv->ANABuf.PhysicalBase +
-		    (devpriv->AdcItems << 2);
+		*pRPS++ = (uint32_t)devpriv->ANABuf.PhysicalBase +
+			  (devpriv->AdcItems << 2);
 
-		/*  If this slot's EndOfPollList flag is set, all channels have */
-		/*  now been processed. */
+		/*
+		 * If this slot's EndOfPollList flag is set, all channels have
+		 * now been processed.
+		 */
 		if (*ppl++ & EOPL) {
-			devpriv->AdcItems++;	/*  Adjust poll list item count. */
-			break;	/*  Exit poll list processing loop. */
+			devpriv->AdcItems++; /* Adjust poll list item count. */
+			break;	/* Exit poll list processing loop. */
 		}
 	}
 
-	/* VERSION 2.01 CHANGE: DELAY CHANGED FROM 250NS to 2US.  Allow the
+	/*
+	 * VERSION 2.01 CHANGE: DELAY CHANGED FROM 250NS to 2US.  Allow the
 	 * ADC to stabilize for 2 microseconds before starting the final
 	 * (dummy) conversion.  This delay is necessary to allow sufficient
 	 * time between last conversion finished and the start of the dummy
@@ -1070,38 +1113,41 @@ static void ResetADC(struct comedi_device *dev, uint8_t *ppl)
 	for (n = 0; n < (2 * RPSCLK_PER_US); n++)
 		*pRPS++ = RPS_NOP;
 
-	/* Start a dummy conversion to cause the data from the last
+	/*
+	 * Start a dummy conversion to cause the data from the last
 	 * conversion of interest to be shifted in.
 	 */
-	*pRPS++ = RPS_LDREG | (P_GPIO >> 2);	/*  Begin ADC Start pulse. */
+	*pRPS++ = RPS_LDREG | (P_GPIO >> 2);	/* Begin ADC Start pulse. */
 	*pRPS++ = GPIO_BASE | GPIO1_LO;
 	*pRPS++ = RPS_NOP;
 	/* VERSION 2.03 CHANGE: STRETCH OUT ADC START PULSE. */
-	*pRPS++ = RPS_LDREG | (P_GPIO >> 2);	/*  End ADC Start pulse. */
+	*pRPS++ = RPS_LDREG | (P_GPIO >> 2);	/* End ADC Start pulse. */
 	*pRPS++ = GPIO_BASE | GPIO1_HI;
 
-	/* Wait for the data from the last conversion of interest to arrive
+	/*
+	 * Wait for the data from the last conversion of interest to arrive
 	 * in FB BUFFER 1 register.
 	 */
-	*pRPS++ = RPS_PAUSE | RPS_GPIO2;	/*  Wait for ADC done. */
+	*pRPS++ = RPS_PAUSE | RPS_GPIO2;	/* Wait for ADC done. */
 
-	/*  Transfer final ADC data from FB BUFFER 1 register to DMA buffer. */
-	*pRPS++ = RPS_STREG | (BUGFIX_STREG(P_FB_BUFFER1) >> 2);	/*  */
-	*pRPS++ =
-	    (uint32_t) devpriv->ANABuf.PhysicalBase + (devpriv->AdcItems << 2);
+	/* Transfer final ADC data from FB BUFFER 1 register to DMA buffer. */
+	*pRPS++ = RPS_STREG | (BUGFIX_STREG(P_FB_BUFFER1) >> 2);
+	*pRPS++ = (uint32_t)devpriv->ANABuf.PhysicalBase +
+		  (devpriv->AdcItems << 2);
 
-	/*  Indicate ADC scan loop is finished. */
-	/*  *pRPS++= RPS_CLRSIGNAL | RPS_SIGADC ;  // Signal ReadADC() that scan is done. */
+	/* Indicate ADC scan loop is finished. */
+	/* Signal ReadADC() that scan is done. */
+	/* *pRPS++= RPS_CLRSIGNAL | RPS_SIGADC; */
 
 	/* invoke interrupt */
-	if (devpriv->ai_cmd_running == 1) {
+	if (devpriv->ai_cmd_running == 1)
 		*pRPS++ = RPS_IRQ;
-	}
-	/*  Restart RPS program at its beginning. */
-	*pRPS++ = RPS_JUMP;	/*  Branch to start of RPS program. */
-	*pRPS++ = (uint32_t) devpriv->RPSBuf.PhysicalBase;
 
-	/*  End of RPS program build */
+	/* Restart RPS program at its beginning. */
+	*pRPS++ = RPS_JUMP;	/* Branch to start of RPS program. */
+	*pRPS++ = (uint32_t)devpriv->RPSBuf.PhysicalBase;
+
+	/* End of RPS program build */
 }
 
 #ifdef unused_code
@@ -1111,8 +1157,8 @@ static int s626_ai_rinsn(struct comedi_device *dev,
 			 unsigned int *data)
 {
 	struct s626_private *devpriv = dev->private;
-	register uint8_t i;
-	register int32_t *readaddr;
+	uint8_t i;
+	int32_t *readaddr;
 
 	/* Trigger ADC scan loop start */
 	s626_mc_enable(dev, MC2_ADC_RPS, P_MC2);
@@ -1153,7 +1199,8 @@ static int s626_ai_insn_read(struct comedi_device *dev,
 	int tmp;
 	int n;
 
-	/* Convert application's ADC specification into form
+	/*
+	 * Convert application's ADC specification into form
 	 *  appropriate for register programming.
 	 */
 	if (range == 0)
@@ -1161,15 +1208,14 @@ static int s626_ai_insn_read(struct comedi_device *dev,
 	else
 		AdcSpec = (chan << 8) | (GSEL_BIPOLAR10V);
 
-	/*  Switch ADC analog gain. */
-	DEBIwrite(dev, LP_GSEL, AdcSpec);	/*  Set gain. */
+	/* Switch ADC analog gain. */
+	DEBIwrite(dev, LP_GSEL, AdcSpec);	/* Set gain. */
 
-	/*  Select ADC analog input channel. */
-	DEBIwrite(dev, LP_ISEL, AdcSpec);	/*  Select channel. */
+	/* Select ADC analog input channel. */
+	DEBIwrite(dev, LP_ISEL, AdcSpec);	/* Select channel. */
 
 	for (n = 0; n < insn->n; n++) {
-
-		/*  Delay 10 microseconds for analog input settling. */
+		/* Delay 10 microseconds for analog input settling. */
 		udelay(10);
 
 		/* Start ADC by pulsing GPIO1 low */
@@ -1182,9 +1228,11 @@ static int s626_ai_insn_read(struct comedi_device *dev,
 		/* Negate ADC Start command */
 		writel(GpioImage | GPIO1_HI, devpriv->mmio + P_GPIO);
 
-		/*  Wait for ADC to complete (GPIO2 is asserted high when */
-		/*  ADC not busy) and for data from previous conversion to */
-		/*  shift into FB BUFFER 1 register. */
+		/*
+		 * Wait for ADC to complete (GPIO2 is asserted high when
+		 * ADC not busy) and for data from previous conversion to
+		 * shift into FB BUFFER 1 register.
+		 */
 
 		/* Wait for ADC done */
 		while (!(readl(devpriv->mmio + P_PSR) & PSR_GPIO2))
@@ -1196,7 +1244,8 @@ static int s626_ai_insn_read(struct comedi_device *dev,
 			data[n - 1] = s626_ai_reg_to_uint(tmp);
 		}
 
-		/* Allow the ADC to stabilize for 4 microseconds before
+		/*
+		 * Allow the ADC to stabilize for 4 microseconds before
 		 * starting the next (final) conversion.  This delay is
 		 * necessary to allow sufficient time between last
 		 * conversion finished and the start of the next
@@ -1207,8 +1256,10 @@ static int s626_ai_insn_read(struct comedi_device *dev,
 		udelay(4);
 	}
 
-	/* Start a dummy conversion to cause the data from the
-	 * previous conversion to be shifted in. */
+	/*
+	 * Start a dummy conversion to cause the data from the
+	 * previous conversion to be shifted in.
+	 */
 	GpioImage = readl(devpriv->mmio + P_GPIO);
 	/* Assert ADC Start command */
 	writel(GpioImage & ~GPIO1_HI, devpriv->mmio + P_GPIO);
@@ -1218,13 +1269,13 @@ static int s626_ai_insn_read(struct comedi_device *dev,
 	/* Negate ADC Start command */
 	writel(GpioImage | GPIO1_HI, devpriv->mmio + P_GPIO);
 
-	/*  Wait for the data to arrive in FB BUFFER 1 register. */
+	/* Wait for the data to arrive in FB BUFFER 1 register. */
 
 	/* Wait for ADC done */
 	while (!(readl(devpriv->mmio + P_PSR) & PSR_GPIO2))
 		;
 
-	/*  Fetch ADC data from audio interface's input shift register. */
+	/* Fetch ADC data from audio interface's input shift register. */
 
 	/* Fetch ADC data */
 	if (n != 0) {
@@ -1237,14 +1288,13 @@ static int s626_ai_insn_read(struct comedi_device *dev,
 
 static int s626_ai_load_polllist(uint8_t *ppl, struct comedi_cmd *cmd)
 {
-
 	int n;
 
 	for (n = 0; n < cmd->chanlist_len; n++) {
-		if (CR_RANGE((cmd->chanlist)[n]) == 0)
-			ppl[n] = (CR_CHAN((cmd->chanlist)[n])) | (RANGE_5V);
+		if (CR_RANGE(cmd->chanlist[n]) == 0)
+			ppl[n] = CR_CHAN(cmd->chanlist[n]) | RANGE_5V;
 		else
-			ppl[n] = (CR_CHAN((cmd->chanlist)[n])) | (RANGE_10V);
+			ppl[n] = CR_CHAN(cmd->chanlist[n]) | RANGE_10V;
 	}
 	if (n != 0)
 		ppl[n - 1] |= EOPL;
@@ -1266,11 +1316,13 @@ static int s626_ai_inttrig(struct comedi_device *dev,
 	return 1;
 }
 
-/* This function doesn't require a particular form, this is just what
+/*
+ * This function doesn't require a particular form, this is just what
  * happens to be used in some of the drivers.  It should convert ns
  * nanoseconds to a counter value suitable for programming the device.
  * Also, it should adjust ns so that it cooresponds to the actual time
- * that the device will use. */
+ * that the device will use.
+ */
 static int s626_ns_to_timer(int *nanosec, int round_mode)
 {
 	int divider, base;
@@ -1297,24 +1349,26 @@ static int s626_ns_to_timer(int *nanosec, int round_mode)
 static void s626_timer_load(struct comedi_device *dev, struct enc_private *k,
 			    int tick)
 {
-	uint16_t Setup = (LOADSRC_INDX << BF_LOADSRC) |	/*  Preload upon */
-	    /*  index. */
-	    (INDXSRC_SOFT << BF_INDXSRC) |	/*  Disable hardware index. */
-	    (CLKSRC_TIMER << BF_CLKSRC) |	/*  Operating mode is Timer. */
-	    (CLKPOL_POS << BF_CLKPOL) |	/*  Active high clock. */
-	    (CNTDIR_DOWN << BF_CLKPOL) |	/*  Count direction is Down. */
-	    (CLKMULT_1X << BF_CLKMULT) |	/*  Clock multiplier is 1x. */
-	    (CLKENAB_INDEX << BF_CLKENAB);
+	uint16_t Setup =
+		(LOADSRC_INDX << BF_LOADSRC) |	/* Preload upon index. */
+		(INDXSRC_SOFT << BF_INDXSRC) |	/* Disable hardware index. */
+		(CLKSRC_TIMER << BF_CLKSRC) |	/* Operating mode is Timer. */
+		(CLKPOL_POS << BF_CLKPOL) |	/* Active high clock. */
+		(CNTDIR_DOWN << BF_CLKPOL) |	/* Count direction is Down. */
+		(CLKMULT_1X << BF_CLKMULT) |	/* Clock multiplier is 1x. */
+		(CLKENAB_INDEX << BF_CLKENAB);
 	uint16_t valueSrclatch = LATCHSRC_A_INDXA;
-	/*   uint16_t enab=CLKENAB_ALWAYS; */
+	/* uint16_t enab = CLKENAB_ALWAYS; */
 
 	k->SetMode(dev, k, Setup, FALSE);
 
-	/*  Set the preload register */
+	/* Set the preload register */
 	Preload(dev, k, tick);
 
-	/*  Software index pulse forces the preload register to load */
-	/*  into the counter */
+	/*
+	 * Software index pulse forces the preload register to load
+	 * into the counter
+	 */
 	k->SetLoadTrig(dev, k, 0);
 	k->PulseIndex(dev, k);
 
@@ -1325,10 +1379,10 @@ static void s626_timer_load(struct comedi_device *dev, struct enc_private *k,
 	k->SetIntSrc(dev, k, INTSRC_OVER);
 
 	SetLatchSource(dev, k, valueSrclatch);
-	/*   k->SetEnable(dev,k,(uint16_t)(enab != 0)); */
+	/* k->SetEnable(dev, k, (uint16_t)(enab != 0)); */
 }
 
-/*  TO COMPLETE  */
+/* TO COMPLETE  */
 static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 {
 	struct s626_private *devpriv = dev->private;
@@ -1350,12 +1404,12 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	/* clear any pending interrupt */
 	s626_dio_clear_irq(dev);
-	/*   s626_enc_clear_irq(dev); */
+	/* s626_enc_clear_irq(dev); */
 
 	/* reset ai_cmd_running flag */
 	devpriv->ai_cmd_running = 0;
 
-	/*  test if cmd is valid */
+	/* test if cmd is valid */
 	if (cmd == NULL)
 		return -EINVAL;
 
@@ -1373,7 +1427,10 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	case TRIG_FOLLOW:
 		break;
 	case TRIG_TIMER:
-		/*  set a conter to generate adc trigger at scan_begin_arg interval */
+		/*
+		 * set a counter to generate adc trigger at scan_begin_arg
+		 * interval
+		 */
 		k = &encpriv[5];
 		tick = s626_ns_to_timer((int *)&cmd->scan_begin_arg,
 					cmd->flags & TRIG_ROUND_MASK);
@@ -1383,7 +1440,7 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		k->SetEnable(dev, k, CLKENAB_ALWAYS);
 		break;
 	case TRIG_EXT:
-		/*  set the digital line and interrupt for scan trigger */
+		/* set the digital line and interrupt for scan trigger */
 		if (cmd->start_src != TRIG_EXT)
 			s626_dio_set_irq(dev, cmd->scan_begin_arg);
 		break;
@@ -1393,7 +1450,10 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	case TRIG_NOW:
 		break;
 	case TRIG_TIMER:
-		/*  set a conter to generate adc trigger at convert_arg interval */
+		/*
+		 * set a counter to generate adc trigger at convert_arg
+		 * interval
+		 */
 		k = &encpriv[4];
 		tick = s626_ns_to_timer((int *)&cmd->convert_arg,
 					cmd->flags & TRIG_ROUND_MASK);
@@ -1403,21 +1463,21 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		k->SetEnable(dev, k, CLKENAB_INDEX);
 		break;
 	case TRIG_EXT:
-		/*  set the digital line and interrupt for convert trigger */
-		if (cmd->scan_begin_src != TRIG_EXT
-		    && cmd->start_src == TRIG_EXT)
+		/* set the digital line and interrupt for convert trigger */
+		if (cmd->scan_begin_src != TRIG_EXT &&
+		    cmd->start_src == TRIG_EXT)
 			s626_dio_set_irq(dev, cmd->convert_arg);
 		break;
 	}
 
 	switch (cmd->stop_src) {
 	case TRIG_COUNT:
-		/*  data arrives as one packet */
+		/* data arrives as one packet */
 		devpriv->ai_sample_count = cmd->stop_arg;
 		devpriv->ai_continous = 0;
 		break;
 	case TRIG_NONE:
-		/*  continous acquisition */
+		/* continuous acquisition */
 		devpriv->ai_continous = 1;
 		devpriv->ai_sample_count = 1;
 		break;
@@ -1432,13 +1492,11 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 		/* Start executing the RPS program */
 		s626_mc_enable(dev, MC1_ERPS1, P_MC1);
-
 		s->async->inttrig = NULL;
 		break;
 	case TRIG_EXT:
 		/* configure DIO channel for acquisition trigger */
 		s626_dio_set_irq(dev, cmd->start_arg);
-
 		s->async->inttrig = NULL;
 		break;
 	case TRIG_INT:
@@ -1461,11 +1519,11 @@ static int s626_ai_cmdtest(struct comedi_device *dev,
 	/* Step 1 : check if triggers are trivially valid */
 
 	err |= cfc_check_trigger_src(&cmd->start_src,
-					TRIG_NOW | TRIG_INT | TRIG_EXT);
+				     TRIG_NOW | TRIG_INT | TRIG_EXT);
 	err |= cfc_check_trigger_src(&cmd->scan_begin_src,
-					TRIG_TIMER | TRIG_EXT | TRIG_FOLLOW);
+				     TRIG_TIMER | TRIG_EXT | TRIG_FOLLOW);
 	err |= cfc_check_trigger_src(&cmd->convert_src,
-					TRIG_TIMER | TRIG_EXT | TRIG_NOW);
+				     TRIG_TIMER | TRIG_EXT | TRIG_NOW);
 	err |= cfc_check_trigger_src(&cmd->scan_end_src, TRIG_COUNT);
 	err |= cfc_check_trigger_src(&cmd->stop_src, TRIG_COUNT | TRIG_NONE);
 
@@ -1490,10 +1548,8 @@ static int s626_ai_cmdtest(struct comedi_device *dev,
 		err |= cfc_check_trigger_arg_is(&cmd->start_arg, 0);
 	if (cmd->start_src == TRIG_EXT)
 		err |= cfc_check_trigger_arg_max(&cmd->start_arg, 39);
-
 	if (cmd->scan_begin_src == TRIG_EXT)
 		err |= cfc_check_trigger_arg_max(&cmd->scan_begin_arg, 39);
-
 	if (cmd->convert_src == TRIG_EXT)
 		err |= cfc_check_trigger_arg_max(&cmd->convert_arg, 39);
 
@@ -1509,7 +1565,7 @@ static int s626_ai_cmdtest(struct comedi_device *dev,
 		/* external trigger */
 		/* should be level/edge, hi/lo specification here */
 		/* should specify multiple external triggers */
-/*		err |= cfc_check_trigger_arg_max(&cmd->scan_begin_arg, 9); */
+		/* err |= cfc_check_trigger_arg_max(&cmd->scan_begin_arg, 9); */
 	}
 	if (cmd->convert_src == TRIG_TIMER) {
 		err |= cfc_check_trigger_arg_min(&cmd->convert_arg, MAX_SPEED);
@@ -1517,7 +1573,7 @@ static int s626_ai_cmdtest(struct comedi_device *dev,
 	} else {
 		/* external trigger */
 		/* see above */
-/*		err |= cfc_check_trigger_arg_max(&cmd->scan_begin_arg, 9); */
+		/* err |= cfc_check_trigger_arg_max(&cmd->scan_begin_arg, 9); */
 	}
 
 	err |= cfc_check_trigger_arg_is(&cmd->scan_end_arg, cmd->chanlist_len);
@@ -1546,10 +1602,10 @@ static int s626_ai_cmdtest(struct comedi_device *dev,
 		if (tmp != cmd->convert_arg)
 			err++;
 		if (cmd->scan_begin_src == TRIG_TIMER &&
-		    cmd->scan_begin_arg <
-		    cmd->convert_arg * cmd->scan_end_arg) {
-			cmd->scan_begin_arg =
-			    cmd->convert_arg * cmd->scan_end_arg;
+		    cmd->scan_begin_arg < cmd->convert_arg *
+					  cmd->scan_end_arg) {
+			cmd->scan_begin_arg = cmd->convert_arg *
+					      cmd->scan_end_arg;
 			err++;
 		}
 	}
@@ -1606,7 +1662,9 @@ static int s626_ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 	return i;
 }
 
-/* *************** DIGITAL I/O FUNCTIONS ***************
+/* *************** DIGITAL I/O FUNCTIONS *************** */
+
+/*
  * All DIO functions address a group of DIO channels by means of
  * "group" argument.  group may be 0, 1 or 2, which correspond to DIO
  * ports A, B and C, respectively.
@@ -1616,10 +1674,10 @@ static void s626_dio_init(struct comedi_device *dev)
 {
 	uint16_t group;
 
-	/*  Prepare to treat writes to WRCapSel as capture disables. */
+	/* Prepare to treat writes to WRCapSel as capture disables. */
 	DEBIwrite(dev, LP_MISC1, MISC1_NOEDCAP);
 
-	/*  For each group of sixteen channels ... */
+	/* For each group of sixteen channels ... */
 	for (group = 0; group < S626_DIO_BANKS; group++) {
 		/* Disable all interrupts */
 		DEBIwrite(dev, LP_WRINTSEL(group), 0);
@@ -1664,37 +1722,39 @@ static int s626_dio_insn_config(struct comedi_device *dev,
 	return insn->n;
 }
 
-/* Now this function initializes the value of the counter (data[0])
-   and set the subdevice. To complete with trigger and interrupt
-   configuration */
-/* FIXME: data[0] is supposed to be an INSN_CONFIG_xxx constant indicating
+/*
+ * Now this function initializes the value of the counter (data[0])
+ * and set the subdevice. To complete with trigger and interrupt
+ * configuration.
+ *
+ * FIXME: data[0] is supposed to be an INSN_CONFIG_xxx constant indicating
  * what is being configured, but this function appears to be using data[0]
- * as a variable. */
+ * as a variable.
+ */
 static int s626_enc_insn_config(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				struct comedi_insn *insn, unsigned int *data)
 {
-	uint16_t Setup = (LOADSRC_INDX << BF_LOADSRC) |	/*  Preload upon */
-	    /*  index. */
-	    (INDXSRC_SOFT << BF_INDXSRC) |	/*  Disable hardware index. */
-	    (CLKSRC_COUNTER << BF_CLKSRC) |	/*  Operating mode is Counter. */
-	    (CLKPOL_POS << BF_CLKPOL) |	/*  Active high clock. */
-	    /* ( CNTDIR_UP << BF_CLKPOL ) |      // Count direction is Down. */
-	    (CLKMULT_1X << BF_CLKMULT) |	/*  Clock multiplier is 1x. */
-	    (CLKENAB_INDEX << BF_CLKENAB);
-	/*   uint16_t DisableIntSrc=TRUE; */
-	/*  uint32_t Preloadvalue;              //Counter initial value */
+	uint16_t Setup =
+		(LOADSRC_INDX << BF_LOADSRC) |	/* Preload upon index. */
+		(INDXSRC_SOFT << BF_INDXSRC) |	/* Disable hardware index. */
+		(CLKSRC_COUNTER << BF_CLKSRC) |	/* Operating mode is Counter. */
+		(CLKPOL_POS << BF_CLKPOL) |	/* Active high clock. */
+		(CLKMULT_1X << BF_CLKMULT) |	/* Clock multiplier is 1x. */
+		(CLKENAB_INDEX << BF_CLKENAB);
+	/* uint16_t DisableIntSrc = TRUE; */
+	/* uint32_t Preloadvalue;              //Counter initial value */
 	uint16_t valueSrclatch = LATCHSRC_AB_READ;
 	uint16_t enab = CLKENAB_ALWAYS;
 	struct enc_private *k = &encpriv[CR_CHAN(insn->chanspec)];
 
-	/*   (data==NULL) ? (Preloadvalue=0) : (Preloadvalue=data[0]); */
+	/* (data==NULL) ? (Preloadvalue=0) : (Preloadvalue=data[0]); */
 
 	k->SetMode(dev, k, Setup, TRUE);
 	Preload(dev, k, data[0]);
 	k->PulseIndex(dev, k);
 	SetLatchSource(dev, k, valueSrclatch);
-	k->SetEnable(dev, k, (uint16_t) (enab != 0));
+	k->SetEnable(dev, k, (enab != 0));
 
 	return insn->n;
 }
@@ -1703,7 +1763,6 @@ static int s626_enc_insn_read(struct comedi_device *dev,
 			      struct comedi_subdevice *s,
 			      struct comedi_insn *insn, unsigned int *data)
 {
-
 	int n;
 	struct enc_private *k = &encpriv[CR_CHAN(insn->chanspec)];
 
@@ -1717,14 +1776,15 @@ static int s626_enc_insn_write(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       struct comedi_insn *insn, unsigned int *data)
 {
-
 	struct enc_private *k = &encpriv[CR_CHAN(insn->chanspec)];
 
-	/*  Set the preload register */
+	/* Set the preload register */
 	Preload(dev, k, data[0]);
 
-	/*  Software index pulse forces the preload register to load */
-	/*  into the counter */
+	/*
+	 * Software index pulse forces the preload register to load
+	 * into the counter
+	 */
 	k->SetLoadTrig(dev, k, 0);
 	k->PulseIndex(dev, k);
 	k->SetLoadTrig(dev, k, 2);
@@ -1734,10 +1794,9 @@ static int s626_enc_insn_write(struct comedi_device *dev,
 
 static void WriteMISC2(struct comedi_device *dev, uint16_t NewImage)
 {
-	DEBIwrite(dev, LP_MISC1, MISC1_WENABLE);	/*  enab writes to */
-	/*  MISC2 register. */
-	DEBIwrite(dev, LP_WRMISC2, NewImage);	/*  Write new image to MISC2. */
-	DEBIwrite(dev, LP_MISC1, MISC1_WDISABLE);	/*  Disable writes to MISC2. */
+	DEBIwrite(dev, LP_MISC1, MISC1_WENABLE); /* Enab writes to MISC2. */
+	DEBIwrite(dev, LP_WRMISC2, NewImage);	/* Write new image to MISC2. */
+	DEBIwrite(dev, LP_MISC1, MISC1_WDISABLE); /* Disable writes to MISC2. */
 }
 
 static void CloseDMAB(struct comedi_device *dev, struct bufferDMA *pdma,
@@ -1749,8 +1808,8 @@ static void CloseDMAB(struct comedi_device *dev, struct bufferDMA *pdma,
 
 	if (pdma == NULL)
 		return;
-	/* find the matching allocation from the board struct */
 
+	/* find the matching allocation from the board struct */
 	vbptr = pdma->LogicalBase;
 	vpptr = pdma->PhysicalBase;
 	if (vbptr) {
@@ -1762,8 +1821,9 @@ static void CloseDMAB(struct comedi_device *dev, struct bufferDMA *pdma,
 
 /* ******  PRIVATE COUNTER FUNCTIONS ****** */
 
-/*  Reset a counter's index and overflow event capture flags. */
-
+/*
+ * Reset a counter's index and overflow event capture flags.
+ */
 static void ResetCapFlags_A(struct comedi_device *dev, struct enc_private *k)
 {
 	DEBIreplace(dev, k->MyCRB, ~CRBMSK_INTCTRL,
@@ -1776,82 +1836,124 @@ static void ResetCapFlags_B(struct comedi_device *dev, struct enc_private *k)
 		    CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B);
 }
 
-/*  Return counter setup in a format (COUNTER_SETUP) that is consistent */
-/*  for both A and B counters. */
-
+/*
+ * Return counter setup in a format (COUNTER_SETUP) that is consistent
+ * for both A and B counters.
+ */
 static uint16_t GetMode_A(struct comedi_device *dev, struct enc_private *k)
 {
-	register uint16_t cra;
-	register uint16_t crb;
-	register uint16_t setup;
+	uint16_t cra;
+	uint16_t crb;
+	uint16_t setup;
 
-	/*  Fetch CRA and CRB register images. */
+	/* Fetch CRA and CRB register images. */
 	cra = DEBIread(dev, k->MyCRA);
 	crb = DEBIread(dev, k->MyCRB);
 
-	/*  Populate the standardized counter setup bit fields.  Note: */
-	/*  IndexSrc is restricted to ENC_X or IndxPol. */
-	setup = ((cra & STDMSK_LOADSRC)	/*  LoadSrc  = LoadSrcA. */
-		 |((crb << (STDBIT_LATCHSRC - CRBBIT_LATCHSRC)) & STDMSK_LATCHSRC)	/*  LatchSrc = LatchSrcA. */
-		 |((cra << (STDBIT_INTSRC - CRABIT_INTSRC_A)) & STDMSK_INTSRC)	/*  IntSrc   = IntSrcA. */
-		 |((cra << (STDBIT_INDXSRC - (CRABIT_INDXSRC_A + 1))) & STDMSK_INDXSRC)	/*  IndxSrc  = IndxSrcA<1>. */
-		 |((cra >> (CRABIT_INDXPOL_A - STDBIT_INDXPOL)) & STDMSK_INDXPOL)	/*  IndxPol  = IndxPolA. */
-		 |((crb >> (CRBBIT_CLKENAB_A - STDBIT_CLKENAB)) & STDMSK_CLKENAB));	/*  ClkEnab  = ClkEnabA. */
-
-	/*  Adjust mode-dependent parameters. */
-	if (cra & (2 << CRABIT_CLKSRC_A))	/*  If Timer mode (ClkSrcA<1> == 1): */
-		setup |= ((CLKSRC_TIMER << STDBIT_CLKSRC)	/*    Indicate Timer mode. */
-			  |((cra << (STDBIT_CLKPOL - CRABIT_CLKSRC_A)) & STDMSK_CLKPOL)	/*    Set ClkPol to indicate count direction (ClkSrcA<0>). */
-			  |(MULT_X1 << STDBIT_CLKMULT));	/*    ClkMult must be 1x in Timer mode. */
-
-	else			/*  If Counter mode (ClkSrcA<1> == 0): */
-		setup |= ((CLKSRC_COUNTER << STDBIT_CLKSRC)	/*    Indicate Counter mode. */
-			  |((cra >> (CRABIT_CLKPOL_A - STDBIT_CLKPOL)) & STDMSK_CLKPOL)	/*    Pass through ClkPol. */
-			  |(((cra & CRAMSK_CLKMULT_A) == (MULT_X0 << CRABIT_CLKMULT_A)) ?	/*    Force ClkMult to 1x if not legal, else pass through. */
-			    (MULT_X1 << STDBIT_CLKMULT) :
-			    ((cra >> (CRABIT_CLKMULT_A -
-				      STDBIT_CLKMULT)) & STDMSK_CLKMULT)));
-
-	/*  Return adjusted counter setup. */
+	/*
+	 * Populate the standardized counter setup bit fields.
+	 * Note: IndexSrc is restricted to ENC_X or IndxPol.
+	 */
+	setup = (cra & STDMSK_LOADSRC) |	/* LoadSrc  = LoadSrcA. */
+		((crb << (STDBIT_LATCHSRC - CRBBIT_LATCHSRC)) &
+		 STDMSK_LATCHSRC) |		/* LatchSrc = LatchSrcA. */
+		((cra << (STDBIT_INTSRC - CRABIT_INTSRC_A)) &
+		 STDMSK_INTSRC) |		/* IntSrc   = IntSrcA. */
+		((cra << (STDBIT_INDXSRC - (CRABIT_INDXSRC_A + 1))) &
+		 STDMSK_INDXSRC) |		/* IndxSrc  = IndxSrcA<1>. */
+		((cra >> (CRABIT_INDXPOL_A - STDBIT_INDXPOL)) &
+		 STDMSK_INDXPOL) |		/* IndxPol  = IndxPolA. */
+		((crb >> (CRBBIT_CLKENAB_A - STDBIT_CLKENAB)) &
+		 STDMSK_CLKENAB);		/* ClkEnab  = ClkEnabA. */
+
+	/* Adjust mode-dependent parameters. */
+	if (cra & (2 << CRABIT_CLKSRC_A)) {
+		/* Timer mode (ClkSrcA<1> == 1): */
+		/* Indicate Timer mode. */
+		setup |= CLKSRC_TIMER << STDBIT_CLKSRC;
+		/* Set ClkPol to indicate count direction (ClkSrcA<0>). */
+		setup |= (cra << (STDBIT_CLKPOL - CRABIT_CLKSRC_A)) &
+			 STDMSK_CLKPOL;
+		/* ClkMult must be 1x in Timer mode. */
+		setup |= MULT_X1 << STDBIT_CLKMULT;
+	} else {
+		/* Counter mode (ClkSrcA<1> == 0): */
+		/* Indicate Counter mode. */
+		setup |= CLKSRC_COUNTER << STDBIT_CLKSRC;
+		/* Pass through ClkPol. */
+		setup |= (cra >> (CRABIT_CLKPOL_A - STDBIT_CLKPOL)) &
+			 STDMSK_CLKPOL;
+		/* Force ClkMult to 1x if not legal, else pass through. */
+		if ((cra & CRAMSK_CLKMULT_A) == (MULT_X0 << CRABIT_CLKMULT_A))
+			setup |= MULT_X1 << STDBIT_CLKMULT;
+		else
+			setup |= (cra >> (CRABIT_CLKMULT_A - STDBIT_CLKMULT)) &
+				 STDMSK_CLKMULT;
+	}
+
+	/* Return adjusted counter setup. */
 	return setup;
 }
 
 static uint16_t GetMode_B(struct comedi_device *dev, struct enc_private *k)
 {
-	register uint16_t cra;
-	register uint16_t crb;
-	register uint16_t setup;
+	uint16_t cra;
+	uint16_t crb;
+	uint16_t setup;
 
-	/*  Fetch CRA and CRB register images. */
+	/* Fetch CRA and CRB register images. */
 	cra = DEBIread(dev, k->MyCRA);
 	crb = DEBIread(dev, k->MyCRB);
 
-	/*  Populate the standardized counter setup bit fields.  Note: */
-	/*  IndexSrc is restricted to ENC_X or IndxPol. */
-	setup = (((crb << (STDBIT_INTSRC - CRBBIT_INTSRC_B)) & STDMSK_INTSRC)	/*  IntSrc   = IntSrcB. */
-		 |((crb << (STDBIT_LATCHSRC - CRBBIT_LATCHSRC)) & STDMSK_LATCHSRC)	/*  LatchSrc = LatchSrcB. */
-		 |((crb << (STDBIT_LOADSRC - CRBBIT_LOADSRC_B)) & STDMSK_LOADSRC)	/*  LoadSrc  = LoadSrcB. */
-		 |((crb << (STDBIT_INDXPOL - CRBBIT_INDXPOL_B)) & STDMSK_INDXPOL)	/*  IndxPol  = IndxPolB. */
-		 |((crb >> (CRBBIT_CLKENAB_B - STDBIT_CLKENAB)) & STDMSK_CLKENAB)	/*  ClkEnab  = ClkEnabB. */
-		 |((cra >> ((CRABIT_INDXSRC_B + 1) - STDBIT_INDXSRC)) & STDMSK_INDXSRC));	/*  IndxSrc  = IndxSrcB<1>. */
-
-	/*  Adjust mode-dependent parameters. */
-	if ((crb & CRBMSK_CLKMULT_B) == (MULT_X0 << CRBBIT_CLKMULT_B))	/*  If Extender mode (ClkMultB == MULT_X0): */
-		setup |= ((CLKSRC_EXTENDER << STDBIT_CLKSRC)	/*    Indicate Extender mode. */
-			  |(MULT_X1 << STDBIT_CLKMULT)	/*    Indicate multiplier is 1x. */
-			  |((cra >> (CRABIT_CLKSRC_B - STDBIT_CLKPOL)) & STDMSK_CLKPOL));	/*    Set ClkPol equal to Timer count direction (ClkSrcB<0>). */
-
-	else if (cra & (2 << CRABIT_CLKSRC_B))	/*  If Timer mode (ClkSrcB<1> == 1): */
-		setup |= ((CLKSRC_TIMER << STDBIT_CLKSRC)	/*    Indicate Timer mode. */
-			  |(MULT_X1 << STDBIT_CLKMULT)	/*    Indicate multiplier is 1x. */
-			  |((cra >> (CRABIT_CLKSRC_B - STDBIT_CLKPOL)) & STDMSK_CLKPOL));	/*    Set ClkPol equal to Timer count direction (ClkSrcB<0>). */
-
-	else			/*  If Counter mode (ClkSrcB<1> == 0): */
-		setup |= ((CLKSRC_COUNTER << STDBIT_CLKSRC)	/*    Indicate Timer mode. */
-			  |((crb >> (CRBBIT_CLKMULT_B - STDBIT_CLKMULT)) & STDMSK_CLKMULT)	/*    Clock multiplier is passed through. */
-			  |((crb << (STDBIT_CLKPOL - CRBBIT_CLKPOL_B)) & STDMSK_CLKPOL));	/*    Clock polarity is passed through. */
-
-	/*  Return adjusted counter setup. */
+	/*
+	 * Populate the standardized counter setup bit fields.
+	 * Note: IndexSrc is restricted to ENC_X or IndxPol.
+	 */
+	setup = ((crb << (STDBIT_INTSRC - CRBBIT_INTSRC_B)) &
+		 STDMSK_INTSRC) |		/* IntSrc   = IntSrcB. */
+		((crb << (STDBIT_LATCHSRC - CRBBIT_LATCHSRC)) &
+		 STDMSK_LATCHSRC) |		/* LatchSrc = LatchSrcB. */
+		((crb << (STDBIT_LOADSRC - CRBBIT_LOADSRC_B)) &
+		 STDMSK_LOADSRC) |		/* LoadSrc  = LoadSrcB. */
+		((crb << (STDBIT_INDXPOL - CRBBIT_INDXPOL_B)) &
+		 STDMSK_INDXPOL) |		/* IndxPol  = IndxPolB. */
+		((crb >> (CRBBIT_CLKENAB_B - STDBIT_CLKENAB)) &
+		 STDMSK_CLKENAB) |		/* ClkEnab  = ClkEnabB. */
+		((cra >> ((CRABIT_INDXSRC_B + 1) - STDBIT_INDXSRC)) &
+		 STDMSK_INDXSRC);		/* IndxSrc  = IndxSrcB<1>. */
+
+	/* Adjust mode-dependent parameters. */
+	if ((crb & CRBMSK_CLKMULT_B) == (MULT_X0 << CRBBIT_CLKMULT_B)) {
+		/* Extender mode (ClkMultB == MULT_X0): */
+		/* Indicate Extender mode. */
+		setup |= CLKSRC_EXTENDER << STDBIT_CLKSRC;
+		/* Indicate multiplier is 1x. */
+		setup |= MULT_X1 << STDBIT_CLKMULT;
+		/* Set ClkPol equal to Timer count direction (ClkSrcB<0>). */
+		setup |= (cra >> (CRABIT_CLKSRC_B - STDBIT_CLKPOL)) &
+			 STDMSK_CLKPOL;
+	} else if (cra & (2 << CRABIT_CLKSRC_B)) {
+		/* Timer mode (ClkSrcB<1> == 1): */
+		/* Indicate Timer mode. */
+		setup |= CLKSRC_TIMER << STDBIT_CLKSRC;
+		/* Indicate multiplier is 1x. */
+		setup |= MULT_X1 << STDBIT_CLKMULT;
+		/* Set ClkPol equal to Timer count direction (ClkSrcB<0>). */
+		setup |= (cra >> (CRABIT_CLKSRC_B - STDBIT_CLKPOL)) &
+			 STDMSK_CLKPOL;
+	} else {
+		/* If Counter mode (ClkSrcB<1> == 0): */
+		/* Indicate Timer mode. */
+		setup |= CLKSRC_COUNTER << STDBIT_CLKSRC;
+		/* Clock multiplier is passed through. */
+		setup |= (crb >> (CRBBIT_CLKMULT_B - STDBIT_CLKMULT)) &
+			 STDMSK_CLKMULT;
+		/* Clock polarity is passed through. */
+		setup |= (crb << (STDBIT_CLKPOL - CRBBIT_CLKPOL_B)) &
+			 STDMSK_CLKPOL;
+	}
+
+	/* Return adjusted counter setup. */
 	return setup;
 }
 
@@ -1861,61 +1963,81 @@ static uint16_t GetMode_B(struct comedi_device *dev, struct enc_private *k)
  * parameters are programmable (all other parms are ignored): ClkMult,
  * ClkPol, ClkEnab, IndexSrc, IndexPol, LoadSrc.
  */
-
 static void SetMode_A(struct comedi_device *dev, struct enc_private *k,
 		      uint16_t Setup, uint16_t DisableIntSrc)
 {
 	struct s626_private *devpriv = dev->private;
-	register uint16_t cra;
-	register uint16_t crb;
-	register uint16_t setup = Setup;	/*  Cache the Standard Setup. */
+	uint16_t cra;
+	uint16_t crb;
+	uint16_t setup = Setup;	/*  Cache the Standard Setup. */
 
-	/*  Initialize CRA and CRB images. */
-	cra = ((setup & CRAMSK_LOADSRC_A)	/*  Preload trigger is passed through. */
-	       |((setup & STDMSK_INDXSRC) >> (STDBIT_INDXSRC - (CRABIT_INDXSRC_A + 1))));	/*  IndexSrc is restricted to ENC_X or IndxPol. */
+	/* Initialize CRA and CRB images. */
+	/* Preload trigger is passed through. */
+	cra = setup & CRAMSK_LOADSRC_A;
+	/* IndexSrc is restricted to ENC_X or IndxPol. */
+	cra |= ((setup & STDMSK_INDXSRC) >>
+		(STDBIT_INDXSRC - (CRABIT_INDXSRC_A + 1)));
 
-	crb = (CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A	/*  Reset any pending CounterA event captures. */
-	       | ((setup & STDMSK_CLKENAB) << (CRBBIT_CLKENAB_A - STDBIT_CLKENAB)));	/*  Clock enable is passed through. */
+	/* Reset any pending CounterA event captures. */
+	crb = CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A;
+	/* Clock enable is passed through. */
+	crb |= (setup & STDMSK_CLKENAB) << (CRBBIT_CLKENAB_A - STDBIT_CLKENAB);
 
-	/*  Force IntSrc to Disabled if DisableIntSrc is asserted. */
+	/* Force IntSrc to Disabled if DisableIntSrc is asserted. */
 	if (!DisableIntSrc)
 		cra |= ((setup & STDMSK_INTSRC) >> (STDBIT_INTSRC -
 						    CRABIT_INTSRC_A));
 
-	/*  Populate all mode-dependent attributes of CRA & CRB images. */
+	/* Populate all mode-dependent attributes of CRA & CRB images. */
 	switch ((setup & STDMSK_CLKSRC) >> STDBIT_CLKSRC) {
-	case CLKSRC_EXTENDER:	/*  Extender Mode: Force to Timer mode */
-		/*  (Extender valid only for B counters). */
-
-	case CLKSRC_TIMER:	/*  Timer Mode: */
-		cra |= ((2 << CRABIT_CLKSRC_A)	/*    ClkSrcA<1> selects system clock */
-			|((setup & STDMSK_CLKPOL) >> (STDBIT_CLKPOL - CRABIT_CLKSRC_A))	/*      with count direction (ClkSrcA<0>) obtained from ClkPol. */
-			|(1 << CRABIT_CLKPOL_A)	/*    ClkPolA behaves as always-on clock enable. */
-			|(MULT_X1 << CRABIT_CLKMULT_A));	/*    ClkMult must be 1x. */
+	case CLKSRC_EXTENDER:	/* Extender Mode: Force to Timer mode
+				 * (Extender valid only for B counters). */
+		/* Fall through to case CLKSRC_TIMER: */
+	case CLKSRC_TIMER:	/* Timer Mode: */
+		/* ClkSrcA<1> selects system clock */
+		cra |= 2 << CRABIT_CLKSRC_A;
+		/* Count direction (ClkSrcA<0>) obtained from ClkPol. */
+		cra |= (setup & STDMSK_CLKPOL) >>
+		       (STDBIT_CLKPOL - CRABIT_CLKSRC_A);
+		/* ClkPolA behaves as always-on clock enable. */
+		cra |= 1 << CRABIT_CLKPOL_A;
+		/* ClkMult must be 1x. */
+		cra |= MULT_X1 << CRABIT_CLKMULT_A;
+		break;
+	default:		/* Counter Mode: */
+		/* Select ENC_C and ENC_D as clock/direction inputs. */
+		cra |= CLKSRC_COUNTER;
+		/* Clock polarity is passed through. */
+		cra |= (setup & STDMSK_CLKPOL) <<
+		       (CRABIT_CLKPOL_A - STDBIT_CLKPOL);
+		/* Force multiplier to x1 if not legal, else pass through. */
+		if ((setup & STDMSK_CLKMULT) == (MULT_X0 << STDBIT_CLKMULT))
+			cra |= MULT_X1 << CRABIT_CLKMULT_A;
+		else
+			cra |= (setup & STDMSK_CLKMULT) <<
+			       (CRABIT_CLKMULT_A - STDBIT_CLKMULT);
 		break;
-
-	default:		/*  Counter Mode: */
-		cra |= (CLKSRC_COUNTER	/*    Select ENC_C and ENC_D as clock/direction inputs. */
-			| ((setup & STDMSK_CLKPOL) << (CRABIT_CLKPOL_A - STDBIT_CLKPOL))	/*    Clock polarity is passed through. */
-			|(((setup & STDMSK_CLKMULT) == (MULT_X0 << STDBIT_CLKMULT)) ?	/*    Force multiplier to x1 if not legal, otherwise pass through. */
-			  (MULT_X1 << CRABIT_CLKMULT_A) :
-			  ((setup & STDMSK_CLKMULT) << (CRABIT_CLKMULT_A -
-							STDBIT_CLKMULT))));
 	}
 
-	/*  Force positive index polarity if IndxSrc is software-driven only, */
-	/*  otherwise pass it through. */
+	/*
+	 * Force positive index polarity if IndxSrc is software-driven only,
+	 * otherwise pass it through.
+	 */
 	if (~setup & STDMSK_INDXSRC)
-		cra |= ((setup & STDMSK_INDXPOL) << (CRABIT_INDXPOL_A -
-						     STDBIT_INDXPOL));
+		cra |= (setup & STDMSK_INDXPOL) <<
+		       (CRABIT_INDXPOL_A - STDBIT_INDXPOL);
 
-	/*  If IntSrc has been forced to Disabled, update the MISC2 interrupt */
-	/*  enable mask to indicate the counter interrupt is disabled. */
+	/*
+	 * If IntSrc has been forced to Disabled, update the MISC2 interrupt
+	 * enable mask to indicate the counter interrupt is disabled.
+	 */
 	if (DisableIntSrc)
 		devpriv->CounterIntEnabs &= ~k->MyEventBits[3];
 
-	/*  While retaining CounterB and LatchSrc configurations, program the */
-	/*  new counter operating mode. */
+	/*
+	 * While retaining CounterB and LatchSrc configurations, program the
+	 * new counter operating mode.
+	 */
 	DEBIreplace(dev, k->MyCRA, CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B, cra);
 	DEBIreplace(dev, k->MyCRB, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A), crb);
 }
@@ -1924,66 +2046,92 @@ static void SetMode_B(struct comedi_device *dev, struct enc_private *k,
 		      uint16_t Setup, uint16_t DisableIntSrc)
 {
 	struct s626_private *devpriv = dev->private;
-	register uint16_t cra;
-	register uint16_t crb;
-	register uint16_t setup = Setup;	/*  Cache the Standard Setup. */
+	uint16_t cra;
+	uint16_t crb;
+	uint16_t setup = Setup;	/* Cache the Standard Setup. */
 
-	/*  Initialize CRA and CRB images. */
-	cra = ((setup & STDMSK_INDXSRC) << ((CRABIT_INDXSRC_B + 1) - STDBIT_INDXSRC));	/*  IndexSrc field is restricted to ENC_X or IndxPol. */
+	/* Initialize CRA and CRB images. */
+	/* IndexSrc field is restricted to ENC_X or IndxPol. */
+	cra = (setup & STDMSK_INDXSRC) <<
+	      (CRABIT_INDXSRC_B + 1 - STDBIT_INDXSRC);
 
-	crb = (CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B	/*  Reset event captures and disable interrupts. */
-	       | ((setup & STDMSK_CLKENAB) << (CRBBIT_CLKENAB_B - STDBIT_CLKENAB))	/*  Clock enable is passed through. */
-	       |((setup & STDMSK_LOADSRC) >> (STDBIT_LOADSRC - CRBBIT_LOADSRC_B)));	/*  Preload trigger source is passed through. */
+	/* Reset event captures and disable interrupts. */
+	crb = CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B;
+	/* Clock enable is passed through. */
+	crb |= (setup & STDMSK_CLKENAB) << (CRBBIT_CLKENAB_B - STDBIT_CLKENAB);
+	/* Preload trigger source is passed through. */
+	crb |= (setup & STDMSK_LOADSRC) >> (STDBIT_LOADSRC - CRBBIT_LOADSRC_B);
 
-	/*  Force IntSrc to Disabled if DisableIntSrc is asserted. */
+	/* Force IntSrc to Disabled if DisableIntSrc is asserted. */
 	if (!DisableIntSrc)
-		crb |= ((setup & STDMSK_INTSRC) >> (STDBIT_INTSRC -
-						    CRBBIT_INTSRC_B));
+		crb |= (setup & STDMSK_INTSRC) >>
+		       (STDBIT_INTSRC - CRBBIT_INTSRC_B);
 
-	/*  Populate all mode-dependent attributes of CRA & CRB images. */
+	/* Populate all mode-dependent attributes of CRA & CRB images. */
 	switch ((setup & STDMSK_CLKSRC) >> STDBIT_CLKSRC) {
-	case CLKSRC_TIMER:	/*  Timer Mode: */
-		cra |= ((2 << CRABIT_CLKSRC_B)	/*    ClkSrcB<1> selects system clock */
-			|((setup & STDMSK_CLKPOL) << (CRABIT_CLKSRC_B - STDBIT_CLKPOL)));	/*      with direction (ClkSrcB<0>) obtained from ClkPol. */
-		crb |= ((1 << CRBBIT_CLKPOL_B)	/*    ClkPolB behaves as always-on clock enable. */
-			|(MULT_X1 << CRBBIT_CLKMULT_B));	/*    ClkMultB must be 1x. */
+	case CLKSRC_TIMER:	/* Timer Mode: */
+		/* ClkSrcB<1> selects system clock */
+		cra |= 2 << CRABIT_CLKSRC_B;
+		/* with direction (ClkSrcB<0>) obtained from ClkPol. */
+		cra |= (setup & STDMSK_CLKPOL) <<
+		       (CRABIT_CLKSRC_B - STDBIT_CLKPOL);
+		/* ClkPolB behaves as always-on clock enable. */
+		crb |= 1 << CRBBIT_CLKPOL_B;
+		/* ClkMultB must be 1x. */
+		crb |= MULT_X1 << CRBBIT_CLKMULT_B;
 		break;
-
-	case CLKSRC_EXTENDER:	/*  Extender Mode: */
-		cra |= ((2 << CRABIT_CLKSRC_B)	/*    ClkSrcB source is OverflowA (same as "timer") */
-			|((setup & STDMSK_CLKPOL) << (CRABIT_CLKSRC_B - STDBIT_CLKPOL)));	/*      with direction obtained from ClkPol. */
-		crb |= ((1 << CRBBIT_CLKPOL_B)	/*    ClkPolB controls IndexB -- always set to active. */
-			|(MULT_X0 << CRBBIT_CLKMULT_B));	/*    ClkMultB selects OverflowA as the clock source. */
+	case CLKSRC_EXTENDER:	/* Extender Mode: */
+		/* ClkSrcB source is OverflowA (same as "timer") */
+		cra |= 2 << CRABIT_CLKSRC_B;
+		/* with direction obtained from ClkPol. */
+		cra |= (setup & STDMSK_CLKPOL) <<
+		       (CRABIT_CLKSRC_B - STDBIT_CLKPOL);
+		/* ClkPolB controls IndexB -- always set to active. */
+		crb |= 1 << CRBBIT_CLKPOL_B;
+		/* ClkMultB selects OverflowA as the clock source. */
+		crb |= MULT_X0 << CRBBIT_CLKMULT_B;
+		break;
+	default:		/* Counter Mode: */
+		/* Select ENC_C and ENC_D as clock/direction inputs. */
+		cra |= CLKSRC_COUNTER << CRABIT_CLKSRC_B;
+		/* ClkPol is passed through. */
+		crb |= (setup & STDMSK_CLKPOL) >>
+		       (STDBIT_CLKPOL - CRBBIT_CLKPOL_B);
+		/* Force ClkMult to x1 if not legal, otherwise pass through. */
+		if ((setup & STDMSK_CLKMULT) == (MULT_X0 << STDBIT_CLKMULT))
+			crb |= MULT_X1 << CRBBIT_CLKMULT_B;
+		else
+			crb |= (setup & STDMSK_CLKMULT) <<
+			       (CRBBIT_CLKMULT_B - STDBIT_CLKMULT);
 		break;
-
-	default:		/*  Counter Mode: */
-		cra |= (CLKSRC_COUNTER << CRABIT_CLKSRC_B);	/*    Select ENC_C and ENC_D as clock/direction inputs. */
-		crb |= (((setup & STDMSK_CLKPOL) >> (STDBIT_CLKPOL - CRBBIT_CLKPOL_B))	/*    ClkPol is passed through. */
-			|(((setup & STDMSK_CLKMULT) == (MULT_X0 << STDBIT_CLKMULT)) ?	/*    Force ClkMult to x1 if not legal, otherwise pass through. */
-			  (MULT_X1 << CRBBIT_CLKMULT_B) :
-			  ((setup & STDMSK_CLKMULT) << (CRBBIT_CLKMULT_B -
-							STDBIT_CLKMULT))));
 	}
 
-	/*  Force positive index polarity if IndxSrc is software-driven only, */
-	/*  otherwise pass it through. */
+	/*
+	 * Force positive index polarity if IndxSrc is software-driven only,
+	 * otherwise pass it through.
+	 */
 	if (~setup & STDMSK_INDXSRC)
-		crb |= ((setup & STDMSK_INDXPOL) >> (STDBIT_INDXPOL -
-						     CRBBIT_INDXPOL_B));
+		crb |= (setup & STDMSK_INDXPOL) >>
+		       (STDBIT_INDXPOL - CRBBIT_INDXPOL_B);
 
-	/*  If IntSrc has been forced to Disabled, update the MISC2 interrupt */
-	/*  enable mask to indicate the counter interrupt is disabled. */
+	/*
+	 * If IntSrc has been forced to Disabled, update the MISC2 interrupt
+	 * enable mask to indicate the counter interrupt is disabled.
+	 */
 	if (DisableIntSrc)
 		devpriv->CounterIntEnabs &= ~k->MyEventBits[3];
 
-	/*  While retaining CounterA and LatchSrc configurations, program the */
-	/*  new counter operating mode. */
+	/*
+	 * While retaining CounterA and LatchSrc configurations, program the
+	 * new counter operating mode.
+	 */
 	DEBIreplace(dev, k->MyCRA, ~(CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B), cra);
 	DEBIreplace(dev, k->MyCRB, CRBMSK_CLKENAB_A | CRBMSK_LATCHSRC, crb);
 }
 
-/*  Return/set a counter's enable.  enab: 0=always enabled, 1=enabled by index. */
-
+/*
+ * Return/set a counter's enable.  enab: 0=always enabled, 1=enabled by index.
+ */
 static void SetEnable_A(struct comedi_device *dev, struct enc_private *k,
 			uint16_t enab)
 {
@@ -2008,19 +2156,19 @@ static uint16_t GetEnable_B(struct comedi_device *dev, struct enc_private *k)
 	return (DEBIread(dev, k->MyCRB) >> CRBBIT_CLKENAB_B) & 1;
 }
 
-/*
- * static uint16_t GetLatchSource(struct comedi_device *dev, struct enc_private *k )
- * {
- *	return ( DEBIread( dev, k->MyCRB) >> CRBBIT_LATCHSRC ) & 3;
- * }
- */
+#ifdef unused
+static uint16_t GetLatchSource(struct comedi_device *dev,
+			       struct enc_private *k)
+{
+	return (DEBIread(dev, k->MyCRB) >> CRBBIT_LATCHSRC) & 3;
+}
+#endif
 
 /*
  * Return/set the event that will trigger transfer of the preload
  * register into the counter.  0=ThisCntr_Index, 1=ThisCntr_Overflow,
  * 2=OverflowA (B counters only), 3=disabled.
  */
-
 static void SetLoadTrig_A(struct comedi_device *dev, struct enc_private *k,
 			  uint16_t Trig)
 {
@@ -2045,25 +2193,25 @@ static uint16_t GetLoadTrig_B(struct comedi_device *dev, struct enc_private *k)
 	return (DEBIread(dev, k->MyCRB) >> CRBBIT_LOADSRC_B) & 3;
 }
 
-/* Return/set counter interrupt source and clear any captured
+/*
+ * Return/set counter interrupt source and clear any captured
  * index/overflow events.  IntSource: 0=Disabled, 1=OverflowOnly,
  * 2=IndexOnly, 3=IndexAndOverflow.
  */
-
 static void SetIntSrc_A(struct comedi_device *dev, struct enc_private *k,
 			uint16_t IntSource)
 {
 	struct s626_private *devpriv = dev->private;
 
-	/*  Reset any pending counter overflow or index captures. */
+	/* Reset any pending counter overflow or index captures. */
 	DEBIreplace(dev, k->MyCRB, ~CRBMSK_INTCTRL,
 		    CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A);
 
-	/*  Program counter interrupt source. */
+	/* Program counter interrupt source. */
 	DEBIreplace(dev, k->MyCRA, ~CRAMSK_INTSRC_A,
 		    IntSource << CRABIT_INTSRC_A);
 
-	/*  Update MISC2 interrupt enable mask. */
+	/* Update MISC2 interrupt enable mask. */
 	devpriv->CounterIntEnabs =
 	    (devpriv->CounterIntEnabs & ~k->
 	     MyEventBits[3]) | k->MyEventBits[IntSource];
@@ -2075,22 +2223,22 @@ static void SetIntSrc_B(struct comedi_device *dev, struct enc_private *k,
 	struct s626_private *devpriv = dev->private;
 	uint16_t crb;
 
-	/*  Cache writeable CRB register image. */
+	/* Cache writeable CRB register image. */
 	crb = DEBIread(dev, k->MyCRB) & ~CRBMSK_INTCTRL;
 
-	/*  Reset any pending counter overflow or index captures. */
+	/* Reset any pending counter overflow or index captures. */
 	DEBIwrite(dev, k->MyCRB,
-		  (uint16_t) (crb | CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B));
+		  (uint16_t)(crb | CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B));
 
-	/*  Program counter interrupt source. */
+	/* Program counter interrupt source. */
 	DEBIwrite(dev, k->MyCRB,
-		  (uint16_t) ((crb & ~CRBMSK_INTSRC_B) | (IntSource <<
-							  CRBBIT_INTSRC_B)));
+		  (uint16_t)((crb & ~CRBMSK_INTSRC_B) |
+			     (IntSource << CRBBIT_INTSRC_B)));
 
-	/*  Update MISC2 interrupt enable mask. */
+	/* Update MISC2 interrupt enable mask. */
 	devpriv->CounterIntEnabs =
-	    (devpriv->CounterIntEnabs & ~k->
-	     MyEventBits[3]) | k->MyEventBits[IntSource];
+		(devpriv->CounterIntEnabs & ~k->MyEventBits[3]) |
+		k->MyEventBits[IntSource];
 }
 
 static uint16_t GetIntSrc_A(struct comedi_device *dev, struct enc_private *k)
@@ -2103,83 +2251,103 @@ static uint16_t GetIntSrc_B(struct comedi_device *dev, struct enc_private *k)
 	return (DEBIread(dev, k->MyCRB) >> CRBBIT_INTSRC_B) & 3;
 }
 
-/*  Return/set the clock multiplier. */
-
-/* static void SetClkMult(struct comedi_device *dev, struct enc_private *k, uint16_t value )  */
-/* { */
-/*   k->SetMode(dev, k, (uint16_t)( ( k->GetMode(dev, k ) & ~STDMSK_CLKMULT ) | ( value << STDBIT_CLKMULT ) ), FALSE ); */
-/* } */
-
-/* static uint16_t GetClkMult(struct comedi_device *dev, struct enc_private *k )  */
-/* { */
-/*   return ( k->GetMode(dev, k ) >> STDBIT_CLKMULT ) & 3; */
-/* } */
-
-/* Return/set the clock polarity. */
-
-/* static void SetClkPol( struct comedi_device *dev,struct enc_private *k, uint16_t value )  */
-/* { */
-/*   k->SetMode(dev, k, (uint16_t)( ( k->GetMode(dev, k ) & ~STDMSK_CLKPOL ) | ( value << STDBIT_CLKPOL ) ), FALSE ); */
-/* } */
-
-/* static uint16_t GetClkPol(struct comedi_device *dev, struct enc_private *k )  */
-/* { */
-/*   return ( k->GetMode(dev, k ) >> STDBIT_CLKPOL ) & 1; */
-/* } */
-
-/* Return/set the clock source.  */
+#ifdef unused
+/*
+ * Return/set the clock multiplier.
+ */
+static void SetClkMult(struct comedi_device *dev, struct enc_private *k,
+		       uint16_t value)
+{
+	k->SetMode(dev, k, ((k->GetMode(dev, k) & ~STDMSK_CLKMULT) |
+			    (value << STDBIT_CLKMULT)), FALSE);
+}
 
-/* static void SetClkSrc( struct comedi_device *dev,struct enc_private *k, uint16_t value )  */
-/* { */
-/*   k->SetMode(dev, k, (uint16_t)( ( k->GetMode(dev, k ) & ~STDMSK_CLKSRC ) | ( value << STDBIT_CLKSRC ) ), FALSE ); */
-/* } */
+static uint16_t GetClkMult(struct comedi_device *dev, struct enc_private *k)
+{
+	return (k->GetMode(dev, k) >> STDBIT_CLKMULT) & 3;
+}
 
-/* static uint16_t GetClkSrc( struct comedi_device *dev,struct enc_private *k )  */
-/* { */
-/*   return ( k->GetMode(dev, k ) >> STDBIT_CLKSRC ) & 3; */
-/* } */
+/*
+ * Return/set the clock polarity.
+ */
+static void SetClkPol(struct comedi_device *dev, struct enc_private *k,
+		      uint16_t value)
+{
+	k->SetMode(dev, k, ((k->GetMode(dev, k) & ~STDMSK_CLKPOL) |
+			    (value << STDBIT_CLKPOL)), FALSE);
+}
 
-/* Return/set the index polarity. */
+static uint16_t GetClkPol(struct comedi_device *dev, struct enc_private *k)
+{
+	return (k->GetMode(dev, k) >> STDBIT_CLKPOL) & 1;
+}
 
-/* static void SetIndexPol(struct comedi_device *dev, struct enc_private *k, uint16_t value )  */
-/* { */
-/*   k->SetMode(dev, k, (uint16_t)( ( k->GetMode(dev, k ) & ~STDMSK_INDXPOL ) | ( (value != 0) << STDBIT_INDXPOL ) ), FALSE ); */
-/* } */
+/*
+ * Return/set the clock source.
+ */
+static void SetClkSrc(struct comedi_device *dev, struct enc_private *k,
+		      uint16_t value)
+{
+	k->SetMode(dev, k, ((k->GetMode(dev, k) & ~STDMSK_CLKSRC) |
+			    (value << STDBIT_CLKSRC)), FALSE);
+}
 
-/* static uint16_t GetIndexPol(struct comedi_device *dev, struct enc_private *k )  */
-/* { */
-/*   return ( k->GetMode(dev, k ) >> STDBIT_INDXPOL ) & 1; */
-/* } */
+static uint16_t GetClkSrc(struct comedi_device *dev, struct enc_private *k)
+{
+	return (k->GetMode(dev, k) >> STDBIT_CLKSRC) & 3;
+}
 
-/*  Return/set the index source. */
+/*
+ * Return/set the index polarity.
+ */
+static void SetIndexPol(struct comedi_device *dev, struct enc_private *k,
+			uint16_t value)
+{
+	k->SetMode(dev, k, ((k->GetMode(dev, k) & ~STDMSK_INDXPOL) |
+			    ((value != 0) << STDBIT_INDXPOL)), FALSE);
+}
 
-/* static void SetIndexSrc(struct comedi_device *dev, struct enc_private *k, uint16_t value )  */
-/* { */
-/*   k->SetMode(dev, k, (uint16_t)( ( k->GetMode(dev, k ) & ~STDMSK_INDXSRC ) | ( (value != 0) << STDBIT_INDXSRC ) ), FALSE ); */
-/* } */
+static uint16_t GetIndexPol(struct comedi_device *dev, struct enc_private *k)
+{
+	return (k->GetMode(dev, k) >> STDBIT_INDXPOL) & 1;
+}
 
-/* static uint16_t GetIndexSrc(struct comedi_device *dev, struct enc_private *k )  */
-/* { */
-/*   return ( k->GetMode(dev, k ) >> STDBIT_INDXSRC ) & 1; */
-/* } */
+/*
+ * Return/set the index source.
+ */
+static void SetIndexSrc(struct comedi_device *dev, struct enc_private *k,
+			uint16_t value)
+{
+	k->SetMode(dev, k, ((k->GetMode(dev, k) & ~STDMSK_INDXSRC) |
+			    ((value != 0) << STDBIT_INDXSRC)), FALSE);
+}
 
-/*  Generate an index pulse. */
+static uint16_t GetIndexSrc(struct comedi_device *dev, struct enc_private *k)
+{
+	return (k->GetMode(dev, k) >> STDBIT_INDXSRC) & 1;
+}
+#endif
 
+/*
+ * Generate an index pulse.
+ */
 static void PulseIndex_A(struct comedi_device *dev, struct enc_private *k)
 {
-	register uint16_t cra;
+	uint16_t cra;
 
-	cra = DEBIread(dev, k->MyCRA);	/*  Pulse index. */
-	DEBIwrite(dev, k->MyCRA, (uint16_t) (cra ^ CRAMSK_INDXPOL_A));
+	cra = DEBIread(dev, k->MyCRA);
+	/* Pulse index. */
+	DEBIwrite(dev, k->MyCRA, (cra ^ CRAMSK_INDXPOL_A));
 	DEBIwrite(dev, k->MyCRA, cra);
 }
 
 static void PulseIndex_B(struct comedi_device *dev, struct enc_private *k)
 {
-	register uint16_t crb;
+	uint16_t crb;
 
-	crb = DEBIread(dev, k->MyCRB) & ~CRBMSK_INTCTRL;	/*  Pulse index. */
-	DEBIwrite(dev, k->MyCRB, (uint16_t) (crb ^ CRBMSK_INDXPOL_B));
+	crb = DEBIread(dev, k->MyCRB) & ~CRBMSK_INTCTRL;
+	/* Pulse index. */
+	DEBIwrite(dev, k->MyCRB, (crb ^ CRBMSK_INDXPOL_B));
 	DEBIwrite(dev, k->MyCRB, crb);
 }
 
@@ -2281,16 +2449,18 @@ static void CountersInit(struct comedi_device *dev)
 {
 	int chan;
 	struct enc_private *k;
-	uint16_t Setup = (LOADSRC_INDX << BF_LOADSRC) |	/*  Preload upon */
-	    /*  index. */
-	    (INDXSRC_SOFT << BF_INDXSRC) |	/*  Disable hardware index. */
-	    (CLKSRC_COUNTER << BF_CLKSRC) |	/*  Operating mode is counter. */
-	    (CLKPOL_POS << BF_CLKPOL) |	/*  Active high clock. */
-	    (CNTDIR_UP << BF_CLKPOL) |	/*  Count direction is up. */
-	    (CLKMULT_1X << BF_CLKMULT) |	/*  Clock multiplier is 1x. */
-	    (CLKENAB_INDEX << BF_CLKENAB);	/*  Enabled by index */
-
-	/*  Disable all counter interrupts and clear any captured counter events. */
+	uint16_t Setup =
+		(LOADSRC_INDX << BF_LOADSRC) |	/* Preload upon index. */
+		(INDXSRC_SOFT << BF_INDXSRC) |	/* Disable hardware index. */
+		(CLKSRC_COUNTER << BF_CLKSRC) |	/* Operating mode is counter. */
+		(CLKPOL_POS << BF_CLKPOL) |	/* Active high clock. */
+		(CNTDIR_UP << BF_CLKPOL) |	/* Count direction is up. */
+		(CLKMULT_1X << BF_CLKMULT) |	/* Clock multiplier is 1x. */
+		(CLKENAB_INDEX << BF_CLKENAB);	/* Enabled by index */
+
+	/*
+	 * Disable all counter interrupts and clear any captured counter events.
+	 */
 	for (chan = 0; chan < S626_ENCODER_CHANNELS; chan++) {
 		k = &encpriv[chan];
 		k->SetMode(dev, k, Setup, TRUE);
@@ -2333,17 +2503,15 @@ static void s626_initialize(struct comedi_device *dev)
 	s626_mc_enable(dev, MC1_DEBI | MC1_AUDIO | MC1_I2C, P_MC1);
 
 	/*
-	 *  Configure DEBI operating mode
+	 * Configure DEBI operating mode
 	 *
-	 *   Local bus is 16 bits wide
-	 *   Declare DEBI transfer timeout interval
-	 *   Set up byte lane steering
-	 *   Intel-compatible local bus (DEBI never times out)
+	 *  Local bus is 16 bits wide
+	 *  Declare DEBI transfer timeout interval
+	 *  Set up byte lane steering
+	 *  Intel-compatible local bus (DEBI never times out)
 	 */
-	writel(DEBI_CFG_SLAVE16 |
-	       (DEBI_TOUT << DEBI_CFG_TOUT_BIT) |
-	       DEBI_SWAP | DEBI_CFG_INTEL,
-	       devpriv->mmio + P_DEBICFG);
+	writel(DEBI_CFG_SLAVE16 | (DEBI_TOUT << DEBI_CFG_TOUT_BIT) |
+	       DEBI_SWAP | DEBI_CFG_INTEL, devpriv->mmio + P_DEBICFG);
 
 	/* Disable MMU paging */
 	writel(DEBI_PAGE_DISABLE, devpriv->mmio + P_DEBIPAGE);
@@ -2416,38 +2584,37 @@ static void s626_initialize(struct comedi_device *dev)
 	 * because the SAA7146 ADC interface does not start up in
 	 * a defined state after a PCI reset.
 	 */
-
 	{
-	uint8_t PollList;
-	uint16_t AdcData;
-	uint16_t StartVal;
-	uint16_t index;
-	unsigned int data[16];
+		uint8_t PollList;
+		uint16_t AdcData;
+		uint16_t StartVal;
+		uint16_t index;
+		unsigned int data[16];
 
-	/* Create a simple polling list for analog input channel 0 */
-	PollList = EOPL;
-	ResetADC(dev, &PollList);
+		/* Create a simple polling list for analog input channel 0 */
+		PollList = EOPL;
+		ResetADC(dev, &PollList);
 
-	/* Get initial ADC value */
-	s626_ai_rinsn(dev, dev->subdevices, NULL, data);
-	StartVal = data[0];
-
-	/*
-	 * VERSION 2.01 CHANGE: TIMEOUT ADDED TO PREVENT HANGED EXECUTION.
-	 *
-	 * Invoke ADCs until the new ADC value differs from the initial
-	 * value or a timeout occurs.  The timeout protects against the
-	 * possibility that the driver is restarting and the ADC data is a
-	 * fixed value resulting from the applied ADC analog input being
-	 * unusually quiet or at the rail.
-	 */
-	for (index = 0; index < 500; index++) {
+		/* Get initial ADC value */
 		s626_ai_rinsn(dev, dev->subdevices, NULL, data);
-		AdcData = data[0];
-		if (AdcData != StartVal)
-			break;
-	}
+		StartVal = data[0];
 
+		/*
+		 * VERSION 2.01 CHANGE: TIMEOUT ADDED TO PREVENT HANGED
+		 * EXECUTION.
+		 *
+		 * Invoke ADCs until the new ADC value differs from the initial
+		 * value or a timeout occurs.  The timeout protects against the
+		 * possibility that the driver is restarting and the ADC data is
+		 * a fixed value resulting from the applied ADC analog input
+		 * being unusually quiet or at the rail.
+		 */
+		for (index = 0; index < 500; index++) {
+			s626_ai_rinsn(dev, dev->subdevices, NULL, data);
+			AdcData = data[0];
+			if (AdcData != StartVal)
+				break;
+		}
 	}
 #endif	/* SAA7146 BUG WORKAROUND */
 
@@ -2661,7 +2828,7 @@ static int s626_auto_attach(struct comedi_device *dev,
 	s->io_bits	= 0xffff;
 	s->private	= (void *)2;	/* DIO group 2 */
 	s->range_table	= &range_digital;
-	s->insn_config 	= s626_dio_insn_config;
+	s->insn_config	= s626_dio_insn_config;
 	s->insn_bits	= s626_dio_insn_bits;
 
 	s = &dev->subdevices[5];
@@ -2699,7 +2866,7 @@ static void s626_detach(struct comedi_device *dev)
 			writel(IRQ_GPIO3 | IRQ_RPS1,
 			       devpriv->mmio + P_ISR);
 
-			/*  Disable the watchdog timer and battery charger. */
+			/* Disable the watchdog timer and battery charger. */
 			WriteMISC2(dev, 0);
 
 			/* Close all interfaces on 7146 device */
@@ -2738,7 +2905,7 @@ static int s626_pci_probe(struct pci_dev *dev,
  */
 static DEFINE_PCI_DEVICE_TABLE(s626_pci_table) = {
 	{ PCI_VENDOR_ID_S626, PCI_DEVICE_ID_S626,
-		PCI_SUBVENDOR_ID_S626, PCI_SUBDEVICE_ID_S626, 0, 0, 0 },
+	  PCI_SUBVENDOR_ID_S626, PCI_SUBDEVICE_ID_S626, 0, 0, 0, },
 	{ 0 }
 };
 MODULE_DEVICE_TABLE(pci, s626_pci_table);
-- 
cgit 


From 730b8e15574687f03b9cf84b1ea5134648e6929b Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:18 +0100
Subject: staging: comedi: s626: convert a printk()

Convert a printk() to a dev_err().

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 99d1bed395ec..e59769d5b219 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -1392,8 +1392,8 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	int tick;
 
 	if (devpriv->ai_cmd_running) {
-		printk(KERN_ERR "s626_ai_cmd: Another ai_cmd is running %d\n",
-		       dev->minor);
+		dev_err(dev->class_dev,
+			"s626_ai_cmd: Another ai_cmd is running\n");
 		return -EBUSY;
 	}
 	/* disable interrupt */
-- 
cgit 


From 869db884c7f191b80964515129e12b03d1006acd Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:19 +0100
Subject: staging: comedi: s626: remove unused DMAHandle

The `DMAHandle` member of `struct bufferDMA` in "s626.h" is unused, so
remove it.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h
index c4b8078e0c06..f7ed4af51a95 100644
--- a/drivers/staging/comedi/drivers/s626.h
+++ b/drivers/staging/comedi/drivers/s626.h
@@ -631,7 +631,6 @@
 struct bufferDMA {
 	dma_addr_t PhysicalBase;
 	void *LogicalBase;
-	uint32_t DMAHandle;
 };
 
 #endif
-- 
cgit 


From 498c5070cf4ee12b3b8ad7f47660d71ef089527e Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:20 +0100
Subject: staging: comedi: s626: remove PCI ID defines

The Sensoray 626 is based on the Philips SAA7146 chip using the Philips
vendor and device ID for the chip, but with custom subdevice and
subvendor IDs.  Use the Philips IDs in the PCI device table and replace
the macros for the subvendor and subdevice IDs with open-coded values.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index e59769d5b219..acd3b94a5339 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -71,11 +71,6 @@
 #include "comedi_fc.h"
 #include "s626.h"
 
-#define PCI_VENDOR_ID_S626 0x1131
-#define PCI_DEVICE_ID_S626 0x7146
-#define PCI_SUBVENDOR_ID_S626 0x6000
-#define PCI_SUBDEVICE_ID_S626 0x0272
-
 struct s626_private {
 	void __iomem *mmio;
 	uint8_t ai_cmd_running;		/* ai_cmd is running */
@@ -2904,8 +2899,8 @@ static int s626_pci_probe(struct pci_dev *dev,
  * Philips SAA7146 media/dvb based cards.
  */
 static DEFINE_PCI_DEVICE_TABLE(s626_pci_table) = {
-	{ PCI_VENDOR_ID_S626, PCI_DEVICE_ID_S626,
-	  PCI_SUBVENDOR_ID_S626, PCI_SUBDEVICE_ID_S626, 0, 0, 0, },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_PHILIPS, PCI_DEVICE_ID_PHILIPS_SAA7146,
+			 0x6000, 0x0272) },
 	{ 0 }
 };
 MODULE_DEVICE_TABLE(pci, s626_pci_table);
-- 
cgit 


From e6132fc9ad90045f676f1838360af5a6bd789ecd Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:21 +0100
Subject: staging: comedi: s626: rename ai_continous

Rename the `ai_continous` member of `struct s626_private` to
`ai_continuous`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index acd3b94a5339..58f2208bf56a 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -74,7 +74,7 @@
 struct s626_private {
 	void __iomem *mmio;
 	uint8_t ai_cmd_running;		/* ai_cmd is running */
-	uint8_t ai_continous;		/* continuous acquisition */
+	uint8_t ai_continuous;		/* continuous acquisition */
 	int ai_sample_count;		/* number of samples to acquire */
 	unsigned int ai_sample_timer;	/* time between samples in
 					 * units of the timer */
@@ -885,7 +885,7 @@ static bool handle_eos_interrupt(struct comedi_device *dev)
 	/* end of scan occurs */
 	async->events |= COMEDI_CB_EOS;
 
-	if (!devpriv->ai_continous)
+	if (!devpriv->ai_continuous)
 		devpriv->ai_sample_count--;
 	if (devpriv->ai_sample_count <= 0) {
 		devpriv->ai_cmd_running = 0;
@@ -1469,11 +1469,11 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	case TRIG_COUNT:
 		/* data arrives as one packet */
 		devpriv->ai_sample_count = cmd->stop_arg;
-		devpriv->ai_continous = 0;
+		devpriv->ai_continuous = 0;
 		break;
 	case TRIG_NONE:
 		/* continuous acquisition */
-		devpriv->ai_continous = 1;
+		devpriv->ai_continuous = 1;
 		devpriv->ai_sample_count = 1;
 		break;
 	}
-- 
cgit 


From d5512f5b5b58e7ae47045315ade7df8873617992 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:22 +0100
Subject: staging: comedi: s626: remove I2CR and I2CW macros

The `I2CR` and `I2CW` macros expand to the I2C read and write addresses,
respectively.  They are only used in one place each and include the name
of a local variable `devpriv` in their expansion.

Get rid of the macros and expand them in place.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 4 ++--
 drivers/staging/comedi/drivers/s626.h | 6 ------
 2 files changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 58f2208bf56a..443e954719cf 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -309,7 +309,7 @@ static uint8_t I2Cread(struct comedi_device *dev, uint8_t addr)
 	 *  Byte1 = EEPROM internal target address.
 	 *  Byte0 = Not sent.
 	 */
-	if (I2Chandshake(dev, I2C_B2(I2C_ATTRSTART, I2CW) |
+	if (I2Chandshake(dev, I2C_B2(I2C_ATTRSTART, devpriv->I2CAdrs) |
 			      I2C_B1(I2C_ATTRSTOP, addr) |
 			      I2C_B0(I2C_ATTRNOP, 0)))
 		/* Abort function and declare error if handshake failed. */
@@ -321,7 +321,7 @@ static uint8_t I2Cread(struct comedi_device *dev, uint8_t addr)
 	 *  Byte1 receives uint8_t from EEPROM.
 	 *  Byte0 = Not sent.
 	 */
-	if (I2Chandshake(dev, I2C_B2(I2C_ATTRSTART, I2CR) |
+	if (I2Chandshake(dev, I2C_B2(I2C_ATTRSTART, (devpriv->I2CAdrs | 1)) |
 			      I2C_B1(I2C_ATTRSTOP, 0) |
 			      I2C_B0(I2C_ATTRNOP, 0)))
 		/* Abort function and declare error if handshake failed. */
diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h
index f7ed4af51a95..939b3592bfcd 100644
--- a/drivers/staging/comedi/drivers/s626.h
+++ b/drivers/staging/comedi/drivers/s626.h
@@ -384,12 +384,6 @@
 #define I2C_ATTRSTOP		0x1	/* I2C attribute STOP. */
 #define I2C_ATTRNOP		0x0	/* I2C attribute NOP. */
 
-/* I2C read command  | EEPROM address. */
-#define I2CR			(devpriv->I2CAdrs | 1)
-
-/* I2C write command | EEPROM address. */
-#define I2CW			(devpriv->I2CAdrs)
-
 /* Code macros used for constructing I2C command bytes. */
 #define I2C_B2(ATTR, VAL)	(((ATTR) << 6) | ((VAL) << 24))
 #define I2C_B1(ATTR, VAL)	(((ATTR) << 4) | ((VAL) << 16))
-- 
cgit 


From 6e3fc69d4cc034b12be487cbd93d19b9807dc7b5 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:23 +0100
Subject: staging: comedi: s626: remove duplicate macros I2C_B0, I2C_B1, I2C_B2

The `I2C_B0(ATTR, VAL)`, `I2C_B1(ATTR, VAL)` and `I2C_B2(ATTR, VAL)`
macros are defined identically in "s626.h" and "s626.c".  Remove the
duplicates from "s626.c".

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 443e954719cf..c74b2f779cec 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -183,11 +183,6 @@ static bool s626_mc_test(struct comedi_device *dev,
 /* Write a time slot control record to TSL2. */
 #define VECTPORT(VECTNUM)		(P_TSL2 + ((VECTNUM) << 2))
 
-/* Code macros used for constructing I2C command bytes. */
-#define I2C_B2(ATTR, VAL)	(((ATTR) << 6) | ((VAL) << 24))
-#define I2C_B1(ATTR, VAL)	(((ATTR) << 4) | ((VAL) << 16))
-#define I2C_B0(ATTR, VAL)	(((ATTR) << 2) | ((VAL) <<  8))
-
 static const struct comedi_lrange s626_range_table = {
 	2, {
 		BIP_RANGE(5),
-- 
cgit 


From 3a3875067e25d9f7dae02c3858010310adc3a317 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:24 +0100
Subject: staging: comedi: s626: replace CamelCase struct bufferDMA

Rename `struct bufferDMA` and its members to avoid CamelCase.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 46 +++++++++++++++++------------------
 drivers/staging/comedi/drivers/s626.h |  6 ++---
 2 files changed, 26 insertions(+), 26 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index c74b2f779cec..23bc419b47bf 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -84,9 +84,9 @@ struct s626_private {
 	uint16_t CounterIntEnabs;	/* counter interrupt enable mask
 					 * for MISC2 register */
 	uint8_t AdcItems;		/* number of items in ADC poll list */
-	struct bufferDMA RPSBuf;	/* DMA buffer used to hold ADC (RPS1)
+	struct buffer_dma RPSBuf;	/* DMA buffer used to hold ADC (RPS1)
 					 * program */
-	struct bufferDMA ANABuf;	/* DMA buffer used to receive ADC data
+	struct buffer_dma ANABuf;	/* DMA buffer used to receive ADC data
 					 * and hold DAC data */
 	uint32_t *pDacWBuf;		/* pointer to logical adrs of DMA buffer
 					 * used to hold DAC data */
@@ -857,7 +857,7 @@ static bool handle_eos_interrupt(struct comedi_device *dev)
 	 * first uint16_t in the buffer because it contains junk data
 	 * from the final ADC of the previous poll list scan.
 	 */
-	int32_t *readaddr = (int32_t *)devpriv->ANABuf.LogicalBase + 1;
+	int32_t *readaddr = (int32_t *)devpriv->ANABuf.logical_base + 1;
 	bool finished = false;
 	int i;
 
@@ -964,10 +964,10 @@ static void ResetADC(struct comedi_device *dev, uint8_t *ppl)
 	s626_mc_disable(dev, MC1_ERPS1, P_MC1);
 
 	/* Set starting logical address to write RPS commands. */
-	pRPS = (uint32_t *)devpriv->RPSBuf.LogicalBase;
+	pRPS = (uint32_t *)devpriv->RPSBuf.logical_base;
 
 	/* Initialize RPS instruction pointer */
-	writel((uint32_t)devpriv->RPSBuf.PhysicalBase,
+	writel((uint32_t)devpriv->RPSBuf.physical_base,
 	       devpriv->mmio + P_RPSADDR1);
 
 	/* Construct RPS program in RPSBuf DMA buffer */
@@ -1047,9 +1047,9 @@ static void ResetADC(struct comedi_device *dev, uint8_t *ppl)
 		 * instruction prefetch pipeline.
 		 */
 		JmpAdrs =
-			(uint32_t)devpriv->RPSBuf.PhysicalBase +
+			(uint32_t)devpriv->RPSBuf.physical_base +
 			(uint32_t)((unsigned long)pRPS -
-				   (unsigned long)devpriv->RPSBuf.LogicalBase);
+				   (unsigned long)devpriv->RPSBuf.logical_base);
 		for (i = 0; i < (10 * RPSCLK_PER_US / 2); i++) {
 			JmpAdrs += 8;	/* Repeat to implement time delay: */
 			*pRPS++ = RPS_JUMP; /* Jump to next RPS instruction. */
@@ -1079,7 +1079,7 @@ static void ResetADC(struct comedi_device *dev, uint8_t *ppl)
 
 		/* Transfer ADC data from FB BUFFER 1 register to DMA buffer. */
 		*pRPS++ = RPS_STREG | (BUGFIX_STREG(P_FB_BUFFER1) >> 2);
-		*pRPS++ = (uint32_t)devpriv->ANABuf.PhysicalBase +
+		*pRPS++ = (uint32_t)devpriv->ANABuf.physical_base +
 			  (devpriv->AdcItems << 2);
 
 		/*
@@ -1122,7 +1122,7 @@ static void ResetADC(struct comedi_device *dev, uint8_t *ppl)
 
 	/* Transfer final ADC data from FB BUFFER 1 register to DMA buffer. */
 	*pRPS++ = RPS_STREG | (BUGFIX_STREG(P_FB_BUFFER1) >> 2);
-	*pRPS++ = (uint32_t)devpriv->ANABuf.PhysicalBase +
+	*pRPS++ = (uint32_t)devpriv->ANABuf.physical_base +
 		  (devpriv->AdcItems << 2);
 
 	/* Indicate ADC scan loop is finished. */
@@ -1135,7 +1135,7 @@ static void ResetADC(struct comedi_device *dev, uint8_t *ppl)
 
 	/* Restart RPS program at its beginning. */
 	*pRPS++ = RPS_JUMP;	/* Branch to start of RPS program. */
-	*pRPS++ = (uint32_t)devpriv->RPSBuf.PhysicalBase;
+	*pRPS++ = (uint32_t)devpriv->RPSBuf.physical_base;
 
 	/* End of RPS program build */
 }
@@ -1162,7 +1162,7 @@ static int s626_ai_rinsn(struct comedi_device *dev,
 	 * first uint16_t in the buffer because it contains junk data from
 	 * the final ADC of the previous poll list scan.
 	 */
-	readaddr = (uint32_t *)devpriv->ANABuf.LogicalBase + 1;
+	readaddr = (uint32_t *)devpriv->ANABuf.logical_base + 1;
 
 	/*
 	 * Convert ADC data to 16-bit integer values and
@@ -1789,7 +1789,7 @@ static void WriteMISC2(struct comedi_device *dev, uint16_t NewImage)
 	DEBIwrite(dev, LP_MISC1, MISC1_WDISABLE); /* Disable writes to MISC2. */
 }
 
-static void CloseDMAB(struct comedi_device *dev, struct bufferDMA *pdma,
+static void CloseDMAB(struct comedi_device *dev, struct buffer_dma *pdma,
 		      size_t bsize)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
@@ -1800,12 +1800,12 @@ static void CloseDMAB(struct comedi_device *dev, struct bufferDMA *pdma,
 		return;
 
 	/* find the matching allocation from the board struct */
-	vbptr = pdma->LogicalBase;
-	vpptr = pdma->PhysicalBase;
+	vbptr = pdma->logical_base;
+	vpptr = pdma->physical_base;
 	if (vbptr) {
 		pci_free_consistent(pcidev, bsize, vbptr, vpptr);
-		pdma->LogicalBase = NULL;
-		pdma->PhysicalBase = 0;
+		pdma->logical_base = NULL;
+		pdma->physical_base = 0;
 	}
 }
 
@@ -2470,14 +2470,14 @@ static int s626_allocate_dma_buffers(struct comedi_device *dev)
 	addr = pci_alloc_consistent(pcidev, DMABUF_SIZE, &appdma);
 	if (!addr)
 		return -ENOMEM;
-	devpriv->ANABuf.LogicalBase = addr;
-	devpriv->ANABuf.PhysicalBase = appdma;
+	devpriv->ANABuf.logical_base = addr;
+	devpriv->ANABuf.physical_base = appdma;
 
 	addr = pci_alloc_consistent(pcidev, DMABUF_SIZE, &appdma);
 	if (!addr)
 		return -ENOMEM;
-	devpriv->RPSBuf.LogicalBase = addr;
-	devpriv->RPSBuf.PhysicalBase = appdma;
+	devpriv->RPSBuf.logical_base = addr;
+	devpriv->RPSBuf.physical_base = appdma;
 
 	return 0;
 }
@@ -2557,7 +2557,7 @@ static void s626_initialize(struct comedi_device *dev)
 	 */
 
 	/* Physical start of RPS program */
-	writel((uint32_t)devpriv->RPSBuf.PhysicalBase,
+	writel((uint32_t)devpriv->RPSBuf.physical_base,
 	       devpriv->mmio + P_RPSADDR1);
 	/* RPS program performs no explicit mem writes */
 	writel(0, devpriv->mmio + P_RPSPAGE1);
@@ -2625,7 +2625,7 @@ static void s626_initialize(struct comedi_device *dev)
 	 * single DWORD will be transferred each time a DMA transfer is
 	 * enabled.
 	 */
-	pPhysBuf = devpriv->ANABuf.PhysicalBase +
+	pPhysBuf = devpriv->ANABuf.physical_base +
 		   (DAC_WDMABUF_OS * sizeof(uint32_t));
 	writel((uint32_t)pPhysBuf, devpriv->mmio + P_BASEA2_OUT);
 	writel((uint32_t)(pPhysBuf + sizeof(uint32_t)),
@@ -2635,7 +2635,7 @@ static void s626_initialize(struct comedi_device *dev)
 	 * Cache Audio2's output DMA buffer logical address.  This is
 	 * where DAC data is buffered for A2 output DMA transfers.
 	 */
-	devpriv->pDacWBuf = (uint32_t *)devpriv->ANABuf.LogicalBase +
+	devpriv->pDacWBuf = (uint32_t *)devpriv->ANABuf.logical_base +
 			    DAC_WDMABUF_OS;
 
 	/*
diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h
index 939b3592bfcd..db16b1861523 100644
--- a/drivers/staging/comedi/drivers/s626.h
+++ b/drivers/staging/comedi/drivers/s626.h
@@ -622,9 +622,9 @@
 #define STDMSK_CLKMULT		(3 << STDBIT_CLKMULT)
 #define STDMSK_CLKENAB		(1 << STDBIT_CLKENAB)
 
-struct bufferDMA {
-	dma_addr_t PhysicalBase;
-	void *LogicalBase;
+struct buffer_dma {
+	dma_addr_t physical_base;
+	void *logical_base;
 };
 
 #endif
-- 
cgit 


From 07a36d66fa013d01b97ac5c72b54ea1d7670f425 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:25 +0100
Subject: staging: comedi: s626: rename CamelCase in struct s626_private

Rename the CamelCase members of `struct s626_private`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 99 ++++++++++++++++++-----------------
 1 file changed, 50 insertions(+), 49 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 23bc419b47bf..45b2c65d58c0 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -81,18 +81,18 @@ struct s626_private {
 	int ai_convert_count;		/* conversion counter */
 	unsigned int ai_convert_timer;	/* time between conversion in
 					 * units of the timer */
-	uint16_t CounterIntEnabs;	/* counter interrupt enable mask
+	uint16_t counter_int_enabs;	/* counter interrupt enable mask
 					 * for MISC2 register */
-	uint8_t AdcItems;		/* number of items in ADC poll list */
-	struct buffer_dma RPSBuf;	/* DMA buffer used to hold ADC (RPS1)
+	uint8_t adc_items;		/* number of items in ADC poll list */
+	struct buffer_dma rps_buf;	/* DMA buffer used to hold ADC (RPS1)
 					 * program */
-	struct buffer_dma ANABuf;	/* DMA buffer used to receive ADC data
+	struct buffer_dma ana_buf;	/* DMA buffer used to receive ADC data
 					 * and hold DAC data */
-	uint32_t *pDacWBuf;		/* pointer to logical adrs of DMA buffer
+	uint32_t *dac_wbuf;		/* pointer to logical adrs of DMA buffer
 					 * used to hold DAC data */
-	uint16_t Dacpol;		/* image of DAC polarity register */
-	uint8_t TrimSetpoint[12];	/* images of TrimDAC setpoints */
-	uint32_t I2CAdrs;		/* I2C device address for onboard EEPROM
+	uint16_t dacpol;		/* image of DAC polarity register */
+	uint8_t trim_setpoint[12];	/* images of TrimDAC setpoints */
+	uint32_t i2c_adrs;		/* I2C device address for onboard EEPROM
 					 * (board rev dependent) */
 	unsigned int ao_readback[S626_DAC_CHANNELS];
 };
@@ -304,7 +304,7 @@ static uint8_t I2Cread(struct comedi_device *dev, uint8_t addr)
 	 *  Byte1 = EEPROM internal target address.
 	 *  Byte0 = Not sent.
 	 */
-	if (I2Chandshake(dev, I2C_B2(I2C_ATTRSTART, devpriv->I2CAdrs) |
+	if (I2Chandshake(dev, I2C_B2(I2C_ATTRSTART, devpriv->i2c_adrs) |
 			      I2C_B1(I2C_ATTRSTOP, addr) |
 			      I2C_B0(I2C_ATTRNOP, 0)))
 		/* Abort function and declare error if handshake failed. */
@@ -316,7 +316,7 @@ static uint8_t I2Cread(struct comedi_device *dev, uint8_t addr)
 	 *  Byte1 receives uint8_t from EEPROM.
 	 *  Byte0 = Not sent.
 	 */
-	if (I2Chandshake(dev, I2C_B2(I2C_ATTRSTART, (devpriv->I2CAdrs | 1)) |
+	if (I2Chandshake(dev, I2C_B2(I2C_ATTRSTART, (devpriv->i2c_adrs | 1)) |
 			      I2C_B1(I2C_ATTRSTOP, 0) |
 			      I2C_B0(I2C_ATTRNOP, 0)))
 		/* Abort function and declare error if handshake failed. */
@@ -342,7 +342,7 @@ static uint8_t trimadrs[] = {
 /*
  * Private helper function: Transmit serial data to DAC via Audio
  * channel 2.  Assumes: (1) TSL2 slot records initialized, and (2)
- * Dacpol contains valid target image.
+ * dacpol contains valid target image.
  */
 static void SendDAC(struct comedi_device *dev, uint32_t val)
 {
@@ -360,13 +360,13 @@ static void SendDAC(struct comedi_device *dev, uint32_t val)
 	 * trailing edge of WS1/WS3 (which turns off the signals), thus
 	 * causing the signals to be inactive during the DAC write.
 	 */
-	DEBIwrite(dev, LP_DACPOL, devpriv->Dacpol);
+	DEBIwrite(dev, LP_DACPOL, devpriv->dacpol);
 
 	/* TRANSFER OUTPUT DWORD VALUE INTO A2'S OUTPUT FIFO ---------------- */
 
 	/* Copy DAC setpoint value to DAC's output DMA buffer. */
-	/* writel(val, devpriv->mmio + (uint32_t)devpriv->pDacWBuf); */
-	*devpriv->pDacWBuf = val;
+	/* writel(val, devpriv->mmio + (uint32_t)devpriv->dac_wbuf); */
+	*devpriv->dac_wbuf = val;
 
 	/*
 	 * Enable the output DMA transfer. This will cause the DMAC to copy
@@ -492,9 +492,9 @@ static void SetDAC(struct comedi_device *dev, uint16_t chan, short dacdata)
 	signmask = 1 << chan;
 	if (dacdata < 0) {
 		dacdata = -dacdata;
-		devpriv->Dacpol |= signmask;
+		devpriv->dacpol |= signmask;
 	} else {
-		devpriv->Dacpol &= ~signmask;
+		devpriv->dacpol &= ~signmask;
 	}
 
 	/* Limit DAC setpoint value to valid range. */
@@ -550,7 +550,7 @@ static void WriteTrimDAC(struct comedi_device *dev, uint8_t LogicalChan,
 	 * Save the new setpoint in case the application needs to read it back
 	 * later.
 	 */
-	devpriv->TrimSetpoint[LogicalChan] = (uint8_t)DacData;
+	devpriv->trim_setpoint[LogicalChan] = (uint8_t)DacData;
 
 	/* Map logical channel number to physical channel number. */
 	chan = trimchan[LogicalChan];
@@ -857,7 +857,7 @@ static bool handle_eos_interrupt(struct comedi_device *dev)
 	 * first uint16_t in the buffer because it contains junk data
 	 * from the final ADC of the previous poll list scan.
 	 */
-	int32_t *readaddr = (int32_t *)devpriv->ANABuf.logical_base + 1;
+	int32_t *readaddr = (int32_t *)devpriv->ana_buf.logical_base + 1;
 	bool finished = false;
 	int i;
 
@@ -964,13 +964,13 @@ static void ResetADC(struct comedi_device *dev, uint8_t *ppl)
 	s626_mc_disable(dev, MC1_ERPS1, P_MC1);
 
 	/* Set starting logical address to write RPS commands. */
-	pRPS = (uint32_t *)devpriv->RPSBuf.logical_base;
+	pRPS = (uint32_t *)devpriv->rps_buf.logical_base;
 
 	/* Initialize RPS instruction pointer */
-	writel((uint32_t)devpriv->RPSBuf.physical_base,
+	writel((uint32_t)devpriv->rps_buf.physical_base,
 	       devpriv->mmio + P_RPSADDR1);
 
-	/* Construct RPS program in RPSBuf DMA buffer */
+	/* Construct RPS program in rps_buf DMA buffer */
 	if (cmd != NULL && cmd->scan_begin_src != TRIG_FOLLOW) {
 		/* Wait for Start trigger. */
 		*pRPS++ = RPS_PAUSE | RPS_SIGADC;
@@ -1001,8 +1001,8 @@ static void ResetADC(struct comedi_device *dev, uint8_t *ppl)
 	 * for loop to limit the slot count to 16 in case the application
 	 * forgot to set the EOPL flag in the final slot.
 	 */
-	for (devpriv->AdcItems = 0; devpriv->AdcItems < 16;
-	     devpriv->AdcItems++) {
+	for (devpriv->adc_items = 0; devpriv->adc_items < 16;
+	     devpriv->adc_items++) {
 		/*
 		 * Convert application's poll list item to private board class
 		 * format.  Each app poll list item is an uint8_t with form
@@ -1047,9 +1047,10 @@ static void ResetADC(struct comedi_device *dev, uint8_t *ppl)
 		 * instruction prefetch pipeline.
 		 */
 		JmpAdrs =
-			(uint32_t)devpriv->RPSBuf.physical_base +
+			(uint32_t)devpriv->rps_buf.physical_base +
 			(uint32_t)((unsigned long)pRPS -
-				   (unsigned long)devpriv->RPSBuf.logical_base);
+				   (unsigned long)devpriv->
+						  rps_buf.logical_base);
 		for (i = 0; i < (10 * RPSCLK_PER_US / 2); i++) {
 			JmpAdrs += 8;	/* Repeat to implement time delay: */
 			*pRPS++ = RPS_JUMP; /* Jump to next RPS instruction. */
@@ -1079,15 +1080,15 @@ static void ResetADC(struct comedi_device *dev, uint8_t *ppl)
 
 		/* Transfer ADC data from FB BUFFER 1 register to DMA buffer. */
 		*pRPS++ = RPS_STREG | (BUGFIX_STREG(P_FB_BUFFER1) >> 2);
-		*pRPS++ = (uint32_t)devpriv->ANABuf.physical_base +
-			  (devpriv->AdcItems << 2);
+		*pRPS++ = (uint32_t)devpriv->ana_buf.physical_base +
+			  (devpriv->adc_items << 2);
 
 		/*
 		 * If this slot's EndOfPollList flag is set, all channels have
 		 * now been processed.
 		 */
 		if (*ppl++ & EOPL) {
-			devpriv->AdcItems++; /* Adjust poll list item count. */
+			devpriv->adc_items++; /* Adjust poll list item count. */
 			break;	/* Exit poll list processing loop. */
 		}
 	}
@@ -1122,8 +1123,8 @@ static void ResetADC(struct comedi_device *dev, uint8_t *ppl)
 
 	/* Transfer final ADC data from FB BUFFER 1 register to DMA buffer. */
 	*pRPS++ = RPS_STREG | (BUGFIX_STREG(P_FB_BUFFER1) >> 2);
-	*pRPS++ = (uint32_t)devpriv->ANABuf.physical_base +
-		  (devpriv->AdcItems << 2);
+	*pRPS++ = (uint32_t)devpriv->ana_buf.physical_base +
+		  (devpriv->adc_items << 2);
 
 	/* Indicate ADC scan loop is finished. */
 	/* Signal ReadADC() that scan is done. */
@@ -1135,7 +1136,7 @@ static void ResetADC(struct comedi_device *dev, uint8_t *ppl)
 
 	/* Restart RPS program at its beginning. */
 	*pRPS++ = RPS_JUMP;	/* Branch to start of RPS program. */
-	*pRPS++ = (uint32_t)devpriv->RPSBuf.physical_base;
+	*pRPS++ = (uint32_t)devpriv->rps_buf.physical_base;
 
 	/* End of RPS program build */
 }
@@ -1162,13 +1163,13 @@ static int s626_ai_rinsn(struct comedi_device *dev,
 	 * first uint16_t in the buffer because it contains junk data from
 	 * the final ADC of the previous poll list scan.
 	 */
-	readaddr = (uint32_t *)devpriv->ANABuf.logical_base + 1;
+	readaddr = (uint32_t *)devpriv->ana_buf.logical_base + 1;
 
 	/*
 	 * Convert ADC data to 16-bit integer values and
 	 * copy to application buffer.
 	 */
-	for (i = 0; i < devpriv->AdcItems; i++) {
+	for (i = 0; i < devpriv->adc_items; i++) {
 		*data = s626_ai_reg_to_uint(*readaddr++);
 		data++;
 	}
@@ -2022,7 +2023,7 @@ static void SetMode_A(struct comedi_device *dev, struct enc_private *k,
 	 * enable mask to indicate the counter interrupt is disabled.
 	 */
 	if (DisableIntSrc)
-		devpriv->CounterIntEnabs &= ~k->MyEventBits[3];
+		devpriv->counter_int_enabs &= ~k->MyEventBits[3];
 
 	/*
 	 * While retaining CounterB and LatchSrc configurations, program the
@@ -2109,7 +2110,7 @@ static void SetMode_B(struct comedi_device *dev, struct enc_private *k,
 	 * enable mask to indicate the counter interrupt is disabled.
 	 */
 	if (DisableIntSrc)
-		devpriv->CounterIntEnabs &= ~k->MyEventBits[3];
+		devpriv->counter_int_enabs &= ~k->MyEventBits[3];
 
 	/*
 	 * While retaining CounterA and LatchSrc configurations, program the
@@ -2202,8 +2203,8 @@ static void SetIntSrc_A(struct comedi_device *dev, struct enc_private *k,
 		    IntSource << CRABIT_INTSRC_A);
 
 	/* Update MISC2 interrupt enable mask. */
-	devpriv->CounterIntEnabs =
-	    (devpriv->CounterIntEnabs & ~k->
+	devpriv->counter_int_enabs =
+	    (devpriv->counter_int_enabs & ~k->
 	     MyEventBits[3]) | k->MyEventBits[IntSource];
 }
 
@@ -2226,8 +2227,8 @@ static void SetIntSrc_B(struct comedi_device *dev, struct enc_private *k,
 			     (IntSource << CRBBIT_INTSRC_B)));
 
 	/* Update MISC2 interrupt enable mask. */
-	devpriv->CounterIntEnabs =
-		(devpriv->CounterIntEnabs & ~k->MyEventBits[3]) |
+	devpriv->counter_int_enabs =
+		(devpriv->counter_int_enabs & ~k->MyEventBits[3]) |
 		k->MyEventBits[IntSource];
 }
 
@@ -2470,14 +2471,14 @@ static int s626_allocate_dma_buffers(struct comedi_device *dev)
 	addr = pci_alloc_consistent(pcidev, DMABUF_SIZE, &appdma);
 	if (!addr)
 		return -ENOMEM;
-	devpriv->ANABuf.logical_base = addr;
-	devpriv->ANABuf.physical_base = appdma;
+	devpriv->ana_buf.logical_base = addr;
+	devpriv->ana_buf.physical_base = appdma;
 
 	addr = pci_alloc_consistent(pcidev, DMABUF_SIZE, &appdma);
 	if (!addr)
 		return -ENOMEM;
-	devpriv->RPSBuf.logical_base = addr;
-	devpriv->RPSBuf.physical_base = appdma;
+	devpriv->rps_buf.logical_base = addr;
+	devpriv->rps_buf.physical_base = appdma;
 
 	return 0;
 }
@@ -2510,7 +2511,7 @@ static void s626_initialize(struct comedi_device *dev)
 	writel(GPIO_BASE | GPIO1_HI, devpriv->mmio + P_GPIO);
 
 	/* I2C device address for onboard eeprom (revb) */
-	devpriv->I2CAdrs = 0xA0;
+	devpriv->i2c_adrs = 0xA0;
 
 	/*
 	 * Issue an I2C ABORT command to halt any I2C
@@ -2557,7 +2558,7 @@ static void s626_initialize(struct comedi_device *dev)
 	 */
 
 	/* Physical start of RPS program */
-	writel((uint32_t)devpriv->RPSBuf.physical_base,
+	writel((uint32_t)devpriv->rps_buf.physical_base,
 	       devpriv->mmio + P_RPSADDR1);
 	/* RPS program performs no explicit mem writes */
 	writel(0, devpriv->mmio + P_RPSPAGE1);
@@ -2625,7 +2626,7 @@ static void s626_initialize(struct comedi_device *dev)
 	 * single DWORD will be transferred each time a DMA transfer is
 	 * enabled.
 	 */
-	pPhysBuf = devpriv->ANABuf.physical_base +
+	pPhysBuf = devpriv->ana_buf.physical_base +
 		   (DAC_WDMABUF_OS * sizeof(uint32_t));
 	writel((uint32_t)pPhysBuf, devpriv->mmio + P_BASEA2_OUT);
 	writel((uint32_t)(pPhysBuf + sizeof(uint32_t)),
@@ -2635,7 +2636,7 @@ static void s626_initialize(struct comedi_device *dev)
 	 * Cache Audio2's output DMA buffer logical address.  This is
 	 * where DAC data is buffered for A2 output DMA transfers.
 	 */
-	devpriv->pDacWBuf = (uint32_t *)devpriv->ANABuf.logical_base +
+	devpriv->dac_wbuf = (uint32_t *)devpriv->ana_buf.logical_base +
 			    DAC_WDMABUF_OS;
 
 	/*
@@ -2863,8 +2864,8 @@ static void s626_detach(struct comedi_device *dev)
 			writel(MC1_SHUTDOWN, devpriv->mmio + P_MC1);
 			writel(ACON1_BASE, devpriv->mmio + P_ACON1);
 
-			CloseDMAB(dev, &devpriv->RPSBuf, DMABUF_SIZE);
-			CloseDMAB(dev, &devpriv->ANABuf, DMABUF_SIZE);
+			CloseDMAB(dev, &devpriv->rps_buf, DMABUF_SIZE);
+			CloseDMAB(dev, &devpriv->ana_buf, DMABUF_SIZE);
 		}
 
 		if (dev->irq)
-- 
cgit 


From b075ac8e9361b309eb12fc7b4e91a2f5f156909f Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:26 +0100
Subject: staging: comedi: s626: rename CamelCase in struct enc_private

Rename the CamelCase members of `struct enc_private`.  Since most of
those are function pointers pointing to functions with similar names as
the members, rename the functions they point to as well.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 425 +++++++++++++++++-----------------
 1 file changed, 215 insertions(+), 210 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 45b2c65d58c0..fcbeb2859923 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -101,35 +101,38 @@ struct s626_private {
 struct enc_private {
 	/* Pointers to functions that differ for A and B counters: */
 	/* Return clock enable. */
-	uint16_t(*GetEnable)(struct comedi_device *dev, struct enc_private *);
+	uint16_t(*get_enable)(struct comedi_device *dev, struct enc_private *k);
 	/* Return interrupt source. */
-	uint16_t(*GetIntSrc)(struct comedi_device *dev, struct enc_private *);
+	uint16_t(*get_int_src)(struct comedi_device *dev,
+			       struct enc_private *k);
 	/* Return preload trigger source. */
-	uint16_t(*GetLoadTrig)(struct comedi_device *dev, struct enc_private *);
+	uint16_t(*get_load_trig)(struct comedi_device *dev,
+				 struct enc_private *k);
 	/* Return standardized operating mode. */
-	uint16_t(*GetMode)(struct comedi_device *dev, struct enc_private *);
+	uint16_t(*get_mode)(struct comedi_device *dev, struct enc_private *k);
 	/* Generate soft index strobe. */
-	void (*PulseIndex)(struct comedi_device *dev, struct enc_private *);
+	void (*pulse_index)(struct comedi_device *dev, struct enc_private *k);
 	/* Program clock enable. */
-	void (*SetEnable)(struct comedi_device *dev, struct enc_private *,
-			  uint16_t enab);
+	void (*set_enable)(struct comedi_device *dev, struct enc_private *k,
+			   uint16_t enab);
 	/* Program interrupt source. */
-	void (*SetIntSrc)(struct comedi_device *dev, struct enc_private *,
-			  uint16_t IntSource);
+	void (*set_int_src)(struct comedi_device *dev, struct enc_private *k,
+			    uint16_t int_source);
 	/* Program preload trigger source. */
-	void (*SetLoadTrig)(struct comedi_device *dev, struct enc_private *,
-			    uint16_t Trig);
+	void (*set_load_trig)(struct comedi_device *dev, struct enc_private *k,
+			      uint16_t trig);
 	/* Program standardized operating mode. */
-	void (*SetMode)(struct comedi_device *dev, struct enc_private *,
-			uint16_t Setup, uint16_t DisableIntSrc);
+	void (*set_mode)(struct comedi_device *dev, struct enc_private *k,
+			 uint16_t setup, uint16_t disable_int_src);
 	/* Reset event capture flags. */
-	void (*ResetCapFlags)(struct comedi_device *dev, struct enc_private *);
+	void (*reset_cap_flags)(struct comedi_device *dev,
+				struct enc_private *k);
 
-	uint16_t MyCRA;		/* address of CRA register */
-	uint16_t MyCRB;		/* address of CRB register */
-	uint16_t MyLatchLsw;	/* address of Latch least-significant-word
+	uint16_t my_cra;	/* address of CRA register */
+	uint16_t my_crb;	/* address of CRB register */
+	uint16_t my_latch_lsw;	/* address of Latch least-significant-word
 				 * register */
-	uint16_t MyEventBits[4]; /* bit translations for IntSrc -->RDMISC2 */
+	uint16_t my_event_bits[4]; /* bit translations for IntSrc -->RDMISC2 */
 };
 
 #define encpriv ((struct enc_private *)(dev->subdevices+5)->private)
@@ -612,10 +615,10 @@ static uint32_t ReadLatch(struct comedi_device *dev, struct enc_private *k)
 	uint32_t value;
 
 	/* Latch counts and fetch LSW of latched counts value. */
-	value = DEBIread(dev, k->MyLatchLsw);
+	value = DEBIread(dev, k->my_latch_lsw);
 
 	/* Fetch MSW of latched counts and combine with LSW. */
-	value |= ((uint32_t)DEBIread(dev, k->MyLatchLsw + 2) << 16);
+	value |= ((uint32_t)DEBIread(dev, k->my_latch_lsw + 2) << 16);
 
 	/* Return latched counts. */
 	return value;
@@ -629,7 +632,7 @@ static uint32_t ReadLatch(struct comedi_device *dev, struct enc_private *k)
 static void SetLatchSource(struct comedi_device *dev, struct enc_private *k,
 			   uint16_t value)
 {
-	DEBIreplace(dev, k->MyCRB, ~(CRBMSK_INTCTRL | CRBMSK_LATCHSRC),
+	DEBIreplace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_LATCHSRC),
 		    value << CRBBIT_LATCHSRC);
 }
 
@@ -639,8 +642,8 @@ static void SetLatchSource(struct comedi_device *dev, struct enc_private *k,
 static void Preload(struct comedi_device *dev, struct enc_private *k,
 		    uint32_t value)
 {
-	DEBIwrite(dev, k->MyLatchLsw, value);
-	DEBIwrite(dev, k->MyLatchLsw + 2, value >> 16);
+	DEBIwrite(dev, k->my_latch_lsw, value);
+	DEBIwrite(dev, k->my_latch_lsw + 2, value >> 16);
 }
 
 static unsigned int s626_ai_reg_to_uint(int data)
@@ -740,7 +743,7 @@ static void handle_dio_interrupt(struct comedi_device *dev,
 				struct enc_private *k = &encpriv[5];
 
 				devpriv->ai_convert_count = cmd->chanlist_len;
-				k->SetEnable(dev, k, CLKENAB_ALWAYS);
+				k->set_enable(dev, k, CLKENAB_ALWAYS);
 			}
 		}
 		if ((irqbit >> (cmd->convert_arg - (16 * group))) == 1 &&
@@ -790,36 +793,36 @@ static void check_counter_interrupts(struct comedi_device *dev)
 		k = &encpriv[0];
 
 		/* clear interrupt capture flag */
-		k->ResetCapFlags(dev, k);
+		k->reset_cap_flags(dev, k);
 	}
 	if (irqbit & IRQ_COINT2A) {
 		k = &encpriv[1];
 
 		/* clear interrupt capture flag */
-		k->ResetCapFlags(dev, k);
+		k->reset_cap_flags(dev, k);
 	}
 	if (irqbit & IRQ_COINT3A) {
 		k = &encpriv[2];
 
 		/* clear interrupt capture flag */
-		k->ResetCapFlags(dev, k);
+		k->reset_cap_flags(dev, k);
 	}
 	if (irqbit & IRQ_COINT1B) {
 		k = &encpriv[3];
 
 		/* clear interrupt capture flag */
-		k->ResetCapFlags(dev, k);
+		k->reset_cap_flags(dev, k);
 	}
 	if (irqbit & IRQ_COINT2B) {
 		k = &encpriv[4];
 
 		/* clear interrupt capture flag */
-		k->ResetCapFlags(dev, k);
+		k->reset_cap_flags(dev, k);
 
 		if (devpriv->ai_convert_count > 0) {
 			devpriv->ai_convert_count--;
 			if (devpriv->ai_convert_count == 0)
-				k->SetEnable(dev, k, CLKENAB_INDEX);
+				k->set_enable(dev, k, CLKENAB_INDEX);
 
 			if (cmd->convert_src == TRIG_TIMER) {
 				/* Trigger ADC scan loop start */
@@ -831,7 +834,7 @@ static void check_counter_interrupts(struct comedi_device *dev)
 		k = &encpriv[5];
 
 		/* clear interrupt capture flag */
-		k->ResetCapFlags(dev, k);
+		k->reset_cap_flags(dev, k);
 
 		if (cmd->scan_begin_src == TRIG_TIMER) {
 			/* Trigger ADC scan loop start */
@@ -841,7 +844,7 @@ static void check_counter_interrupts(struct comedi_device *dev)
 		if (cmd->convert_src == TRIG_TIMER) {
 			k = &encpriv[4];
 			devpriv->ai_convert_count = cmd->chanlist_len;
-			k->SetEnable(dev, k, CLKENAB_ALWAYS);
+			k->set_enable(dev, k, CLKENAB_ALWAYS);
 		}
 	}
 }
@@ -1351,7 +1354,7 @@ static void s626_timer_load(struct comedi_device *dev, struct enc_private *k,
 	uint16_t valueSrclatch = LATCHSRC_A_INDXA;
 	/* uint16_t enab = CLKENAB_ALWAYS; */
 
-	k->SetMode(dev, k, Setup, FALSE);
+	k->set_mode(dev, k, Setup, FALSE);
 
 	/* Set the preload register */
 	Preload(dev, k, tick);
@@ -1360,17 +1363,17 @@ static void s626_timer_load(struct comedi_device *dev, struct enc_private *k,
 	 * Software index pulse forces the preload register to load
 	 * into the counter
 	 */
-	k->SetLoadTrig(dev, k, 0);
-	k->PulseIndex(dev, k);
+	k->set_load_trig(dev, k, 0);
+	k->pulse_index(dev, k);
 
 	/* set reload on counter overflow */
-	k->SetLoadTrig(dev, k, 1);
+	k->set_load_trig(dev, k, 1);
 
 	/* set interrupt on overflow */
-	k->SetIntSrc(dev, k, INTSRC_OVER);
+	k->set_int_src(dev, k, INTSRC_OVER);
 
 	SetLatchSource(dev, k, valueSrclatch);
-	/* k->SetEnable(dev, k, (uint16_t)(enab != 0)); */
+	/* k->set_enable(dev, k, (uint16_t)(enab != 0)); */
 }
 
 /* TO COMPLETE  */
@@ -1428,7 +1431,7 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 		/* load timer value and enable interrupt */
 		s626_timer_load(dev, k, tick);
-		k->SetEnable(dev, k, CLKENAB_ALWAYS);
+		k->set_enable(dev, k, CLKENAB_ALWAYS);
 		break;
 	case TRIG_EXT:
 		/* set the digital line and interrupt for scan trigger */
@@ -1451,7 +1454,7 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 		/* load timer value and enable interrupt */
 		s626_timer_load(dev, k, tick);
-		k->SetEnable(dev, k, CLKENAB_INDEX);
+		k->set_enable(dev, k, CLKENAB_INDEX);
 		break;
 	case TRIG_EXT:
 		/* set the digital line and interrupt for convert trigger */
@@ -1741,11 +1744,11 @@ static int s626_enc_insn_config(struct comedi_device *dev,
 
 	/* (data==NULL) ? (Preloadvalue=0) : (Preloadvalue=data[0]); */
 
-	k->SetMode(dev, k, Setup, TRUE);
+	k->set_mode(dev, k, Setup, TRUE);
 	Preload(dev, k, data[0]);
-	k->PulseIndex(dev, k);
+	k->pulse_index(dev, k);
 	SetLatchSource(dev, k, valueSrclatch);
-	k->SetEnable(dev, k, (enab != 0));
+	k->set_enable(dev, k, (enab != 0));
 
 	return insn->n;
 }
@@ -1776,9 +1779,9 @@ static int s626_enc_insn_write(struct comedi_device *dev,
 	 * Software index pulse forces the preload register to load
 	 * into the counter
 	 */
-	k->SetLoadTrig(dev, k, 0);
-	k->PulseIndex(dev, k);
-	k->SetLoadTrig(dev, k, 2);
+	k->set_load_trig(dev, k, 0);
+	k->pulse_index(dev, k);
+	k->set_load_trig(dev, k, 2);
 
 	return 1;
 }
@@ -1815,15 +1818,15 @@ static void CloseDMAB(struct comedi_device *dev, struct buffer_dma *pdma,
 /*
  * Reset a counter's index and overflow event capture flags.
  */
-static void ResetCapFlags_A(struct comedi_device *dev, struct enc_private *k)
+static void reset_cap_flags_a(struct comedi_device *dev, struct enc_private *k)
 {
-	DEBIreplace(dev, k->MyCRB, ~CRBMSK_INTCTRL,
+	DEBIreplace(dev, k->my_crb, ~CRBMSK_INTCTRL,
 		    CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A);
 }
 
-static void ResetCapFlags_B(struct comedi_device *dev, struct enc_private *k)
+static void reset_cap_flags_b(struct comedi_device *dev, struct enc_private *k)
 {
-	DEBIreplace(dev, k->MyCRB, ~CRBMSK_INTCTRL,
+	DEBIreplace(dev, k->my_crb, ~CRBMSK_INTCTRL,
 		    CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B);
 }
 
@@ -1831,15 +1834,15 @@ static void ResetCapFlags_B(struct comedi_device *dev, struct enc_private *k)
  * Return counter setup in a format (COUNTER_SETUP) that is consistent
  * for both A and B counters.
  */
-static uint16_t GetMode_A(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_mode_a(struct comedi_device *dev, struct enc_private *k)
 {
 	uint16_t cra;
 	uint16_t crb;
 	uint16_t setup;
 
 	/* Fetch CRA and CRB register images. */
-	cra = DEBIread(dev, k->MyCRA);
-	crb = DEBIread(dev, k->MyCRB);
+	cra = DEBIread(dev, k->my_cra);
+	crb = DEBIread(dev, k->my_crb);
 
 	/*
 	 * Populate the standardized counter setup bit fields.
@@ -1886,15 +1889,15 @@ static uint16_t GetMode_A(struct comedi_device *dev, struct enc_private *k)
 	return setup;
 }
 
-static uint16_t GetMode_B(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_mode_b(struct comedi_device *dev, struct enc_private *k)
 {
 	uint16_t cra;
 	uint16_t crb;
 	uint16_t setup;
 
 	/* Fetch CRA and CRB register images. */
-	cra = DEBIread(dev, k->MyCRA);
-	crb = DEBIread(dev, k->MyCRB);
+	cra = DEBIread(dev, k->my_cra);
+	crb = DEBIread(dev, k->my_crb);
 
 	/*
 	 * Populate the standardized counter setup bit fields.
@@ -1954,8 +1957,8 @@ static uint16_t GetMode_B(struct comedi_device *dev, struct enc_private *k)
  * parameters are programmable (all other parms are ignored): ClkMult,
  * ClkPol, ClkEnab, IndexSrc, IndexPol, LoadSrc.
  */
-static void SetMode_A(struct comedi_device *dev, struct enc_private *k,
-		      uint16_t Setup, uint16_t DisableIntSrc)
+static void set_mode_a(struct comedi_device *dev, struct enc_private *k,
+		       uint16_t Setup, uint16_t DisableIntSrc)
 {
 	struct s626_private *devpriv = dev->private;
 	uint16_t cra;
@@ -2023,18 +2026,18 @@ static void SetMode_A(struct comedi_device *dev, struct enc_private *k,
 	 * enable mask to indicate the counter interrupt is disabled.
 	 */
 	if (DisableIntSrc)
-		devpriv->counter_int_enabs &= ~k->MyEventBits[3];
+		devpriv->counter_int_enabs &= ~k->my_event_bits[3];
 
 	/*
 	 * While retaining CounterB and LatchSrc configurations, program the
 	 * new counter operating mode.
 	 */
-	DEBIreplace(dev, k->MyCRA, CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B, cra);
-	DEBIreplace(dev, k->MyCRB, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A), crb);
+	DEBIreplace(dev, k->my_cra, CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B, cra);
+	DEBIreplace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A), crb);
 }
 
-static void SetMode_B(struct comedi_device *dev, struct enc_private *k,
-		      uint16_t Setup, uint16_t DisableIntSrc)
+static void set_mode_b(struct comedi_device *dev, struct enc_private *k,
+		       uint16_t Setup, uint16_t DisableIntSrc)
 {
 	struct s626_private *devpriv = dev->private;
 	uint16_t cra;
@@ -2110,48 +2113,48 @@ static void SetMode_B(struct comedi_device *dev, struct enc_private *k,
 	 * enable mask to indicate the counter interrupt is disabled.
 	 */
 	if (DisableIntSrc)
-		devpriv->counter_int_enabs &= ~k->MyEventBits[3];
+		devpriv->counter_int_enabs &= ~k->my_event_bits[3];
 
 	/*
 	 * While retaining CounterA and LatchSrc configurations, program the
 	 * new counter operating mode.
 	 */
-	DEBIreplace(dev, k->MyCRA, ~(CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B), cra);
-	DEBIreplace(dev, k->MyCRB, CRBMSK_CLKENAB_A | CRBMSK_LATCHSRC, crb);
+	DEBIreplace(dev, k->my_cra, ~(CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B), cra);
+	DEBIreplace(dev, k->my_crb, CRBMSK_CLKENAB_A | CRBMSK_LATCHSRC, crb);
 }
 
 /*
  * Return/set a counter's enable.  enab: 0=always enabled, 1=enabled by index.
  */
-static void SetEnable_A(struct comedi_device *dev, struct enc_private *k,
-			uint16_t enab)
+static void set_enable_a(struct comedi_device *dev, struct enc_private *k,
+			 uint16_t enab)
 {
-	DEBIreplace(dev, k->MyCRB, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A),
+	DEBIreplace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A),
 		    enab << CRBBIT_CLKENAB_A);
 }
 
-static void SetEnable_B(struct comedi_device *dev, struct enc_private *k,
-			uint16_t enab)
+static void set_enable_b(struct comedi_device *dev, struct enc_private *k,
+			 uint16_t enab)
 {
-	DEBIreplace(dev, k->MyCRB, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_B),
+	DEBIreplace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_B),
 		    enab << CRBBIT_CLKENAB_B);
 }
 
-static uint16_t GetEnable_A(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_enable_a(struct comedi_device *dev, struct enc_private *k)
 {
-	return (DEBIread(dev, k->MyCRB) >> CRBBIT_CLKENAB_A) & 1;
+	return (DEBIread(dev, k->my_crb) >> CRBBIT_CLKENAB_A) & 1;
 }
 
-static uint16_t GetEnable_B(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_enable_b(struct comedi_device *dev, struct enc_private *k)
 {
-	return (DEBIread(dev, k->MyCRB) >> CRBBIT_CLKENAB_B) & 1;
+	return (DEBIread(dev, k->my_crb) >> CRBBIT_CLKENAB_B) & 1;
 }
 
 #ifdef unused
 static uint16_t GetLatchSource(struct comedi_device *dev,
 			       struct enc_private *k)
 {
-	return (DEBIread(dev, k->MyCRB) >> CRBBIT_LATCHSRC) & 3;
+	return (DEBIread(dev, k->my_crb) >> CRBBIT_LATCHSRC) & 3;
 }
 #endif
 
@@ -2160,28 +2163,30 @@ static uint16_t GetLatchSource(struct comedi_device *dev,
  * register into the counter.  0=ThisCntr_Index, 1=ThisCntr_Overflow,
  * 2=OverflowA (B counters only), 3=disabled.
  */
-static void SetLoadTrig_A(struct comedi_device *dev, struct enc_private *k,
-			  uint16_t Trig)
+static void set_load_trig_a(struct comedi_device *dev, struct enc_private *k,
+			    uint16_t Trig)
 {
-	DEBIreplace(dev, k->MyCRA, ~CRAMSK_LOADSRC_A,
+	DEBIreplace(dev, k->my_cra, ~CRAMSK_LOADSRC_A,
 		    Trig << CRABIT_LOADSRC_A);
 }
 
-static void SetLoadTrig_B(struct comedi_device *dev, struct enc_private *k,
-			  uint16_t Trig)
+static void set_load_trig_b(struct comedi_device *dev, struct enc_private *k,
+			    uint16_t Trig)
 {
-	DEBIreplace(dev, k->MyCRB, ~(CRBMSK_LOADSRC_B | CRBMSK_INTCTRL),
+	DEBIreplace(dev, k->my_crb, ~(CRBMSK_LOADSRC_B | CRBMSK_INTCTRL),
 		    Trig << CRBBIT_LOADSRC_B);
 }
 
-static uint16_t GetLoadTrig_A(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_load_trig_a(struct comedi_device *dev,
+				struct enc_private *k)
 {
-	return (DEBIread(dev, k->MyCRA) >> CRABIT_LOADSRC_A) & 3;
+	return (DEBIread(dev, k->my_cra) >> CRABIT_LOADSRC_A) & 3;
 }
 
-static uint16_t GetLoadTrig_B(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_load_trig_b(struct comedi_device *dev,
+				struct enc_private *k)
 {
-	return (DEBIread(dev, k->MyCRB) >> CRBBIT_LOADSRC_B) & 3;
+	return (DEBIread(dev, k->my_crb) >> CRBBIT_LOADSRC_B) & 3;
 }
 
 /*
@@ -2189,57 +2194,57 @@ static uint16_t GetLoadTrig_B(struct comedi_device *dev, struct enc_private *k)
  * index/overflow events.  IntSource: 0=Disabled, 1=OverflowOnly,
  * 2=IndexOnly, 3=IndexAndOverflow.
  */
-static void SetIntSrc_A(struct comedi_device *dev, struct enc_private *k,
-			uint16_t IntSource)
+static void set_int_src_a(struct comedi_device *dev, struct enc_private *k,
+			  uint16_t IntSource)
 {
 	struct s626_private *devpriv = dev->private;
 
 	/* Reset any pending counter overflow or index captures. */
-	DEBIreplace(dev, k->MyCRB, ~CRBMSK_INTCTRL,
+	DEBIreplace(dev, k->my_crb, ~CRBMSK_INTCTRL,
 		    CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A);
 
 	/* Program counter interrupt source. */
-	DEBIreplace(dev, k->MyCRA, ~CRAMSK_INTSRC_A,
+	DEBIreplace(dev, k->my_cra, ~CRAMSK_INTSRC_A,
 		    IntSource << CRABIT_INTSRC_A);
 
 	/* Update MISC2 interrupt enable mask. */
 	devpriv->counter_int_enabs =
-	    (devpriv->counter_int_enabs & ~k->
-	     MyEventBits[3]) | k->MyEventBits[IntSource];
+	    (devpriv->counter_int_enabs & ~k->my_event_bits[3]) |
+	    k->my_event_bits[IntSource];
 }
 
-static void SetIntSrc_B(struct comedi_device *dev, struct enc_private *k,
-			uint16_t IntSource)
+static void set_int_src_b(struct comedi_device *dev, struct enc_private *k,
+			  uint16_t IntSource)
 {
 	struct s626_private *devpriv = dev->private;
 	uint16_t crb;
 
 	/* Cache writeable CRB register image. */
-	crb = DEBIread(dev, k->MyCRB) & ~CRBMSK_INTCTRL;
+	crb = DEBIread(dev, k->my_crb) & ~CRBMSK_INTCTRL;
 
 	/* Reset any pending counter overflow or index captures. */
-	DEBIwrite(dev, k->MyCRB,
+	DEBIwrite(dev, k->my_crb,
 		  (uint16_t)(crb | CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B));
 
 	/* Program counter interrupt source. */
-	DEBIwrite(dev, k->MyCRB,
+	DEBIwrite(dev, k->my_crb,
 		  (uint16_t)((crb & ~CRBMSK_INTSRC_B) |
 			     (IntSource << CRBBIT_INTSRC_B)));
 
 	/* Update MISC2 interrupt enable mask. */
 	devpriv->counter_int_enabs =
-		(devpriv->counter_int_enabs & ~k->MyEventBits[3]) |
-		k->MyEventBits[IntSource];
+		(devpriv->counter_int_enabs & ~k->my_event_bits[3]) |
+		k->my_event_bits[IntSource];
 }
 
-static uint16_t GetIntSrc_A(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_int_src_a(struct comedi_device *dev, struct enc_private *k)
 {
-	return (DEBIread(dev, k->MyCRA) >> CRABIT_INTSRC_A) & 3;
+	return (DEBIread(dev, k->my_cra) >> CRABIT_INTSRC_A) & 3;
 }
 
-static uint16_t GetIntSrc_B(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_int_src_b(struct comedi_device *dev, struct enc_private *k)
 {
-	return (DEBIread(dev, k->MyCRB) >> CRBBIT_INTSRC_B) & 3;
+	return (DEBIread(dev, k->my_crb) >> CRBBIT_INTSRC_B) & 3;
 }
 
 #ifdef unused
@@ -2249,13 +2254,13 @@ static uint16_t GetIntSrc_B(struct comedi_device *dev, struct enc_private *k)
 static void SetClkMult(struct comedi_device *dev, struct enc_private *k,
 		       uint16_t value)
 {
-	k->SetMode(dev, k, ((k->GetMode(dev, k) & ~STDMSK_CLKMULT) |
+	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKMULT) |
 			    (value << STDBIT_CLKMULT)), FALSE);
 }
 
 static uint16_t GetClkMult(struct comedi_device *dev, struct enc_private *k)
 {
-	return (k->GetMode(dev, k) >> STDBIT_CLKMULT) & 3;
+	return (k->get_mode(dev, k) >> STDBIT_CLKMULT) & 3;
 }
 
 /*
@@ -2264,13 +2269,13 @@ static uint16_t GetClkMult(struct comedi_device *dev, struct enc_private *k)
 static void SetClkPol(struct comedi_device *dev, struct enc_private *k,
 		      uint16_t value)
 {
-	k->SetMode(dev, k, ((k->GetMode(dev, k) & ~STDMSK_CLKPOL) |
+	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKPOL) |
 			    (value << STDBIT_CLKPOL)), FALSE);
 }
 
 static uint16_t GetClkPol(struct comedi_device *dev, struct enc_private *k)
 {
-	return (k->GetMode(dev, k) >> STDBIT_CLKPOL) & 1;
+	return (k->get_mode(dev, k) >> STDBIT_CLKPOL) & 1;
 }
 
 /*
@@ -2279,13 +2284,13 @@ static uint16_t GetClkPol(struct comedi_device *dev, struct enc_private *k)
 static void SetClkSrc(struct comedi_device *dev, struct enc_private *k,
 		      uint16_t value)
 {
-	k->SetMode(dev, k, ((k->GetMode(dev, k) & ~STDMSK_CLKSRC) |
+	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKSRC) |
 			    (value << STDBIT_CLKSRC)), FALSE);
 }
 
 static uint16_t GetClkSrc(struct comedi_device *dev, struct enc_private *k)
 {
-	return (k->GetMode(dev, k) >> STDBIT_CLKSRC) & 3;
+	return (k->get_mode(dev, k) >> STDBIT_CLKSRC) & 3;
 }
 
 /*
@@ -2294,13 +2299,13 @@ static uint16_t GetClkSrc(struct comedi_device *dev, struct enc_private *k)
 static void SetIndexPol(struct comedi_device *dev, struct enc_private *k,
 			uint16_t value)
 {
-	k->SetMode(dev, k, ((k->GetMode(dev, k) & ~STDMSK_INDXPOL) |
+	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_INDXPOL) |
 			    ((value != 0) << STDBIT_INDXPOL)), FALSE);
 }
 
 static uint16_t GetIndexPol(struct comedi_device *dev, struct enc_private *k)
 {
-	return (k->GetMode(dev, k) >> STDBIT_INDXPOL) & 1;
+	return (k->get_mode(dev, k) >> STDBIT_INDXPOL) & 1;
 }
 
 /*
@@ -2309,130 +2314,130 @@ static uint16_t GetIndexPol(struct comedi_device *dev, struct enc_private *k)
 static void SetIndexSrc(struct comedi_device *dev, struct enc_private *k,
 			uint16_t value)
 {
-	k->SetMode(dev, k, ((k->GetMode(dev, k) & ~STDMSK_INDXSRC) |
+	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_INDXSRC) |
 			    ((value != 0) << STDBIT_INDXSRC)), FALSE);
 }
 
 static uint16_t GetIndexSrc(struct comedi_device *dev, struct enc_private *k)
 {
-	return (k->GetMode(dev, k) >> STDBIT_INDXSRC) & 1;
+	return (k->get_mode(dev, k) >> STDBIT_INDXSRC) & 1;
 }
 #endif
 
 /*
  * Generate an index pulse.
  */
-static void PulseIndex_A(struct comedi_device *dev, struct enc_private *k)
+static void pulse_index_a(struct comedi_device *dev, struct enc_private *k)
 {
 	uint16_t cra;
 
-	cra = DEBIread(dev, k->MyCRA);
+	cra = DEBIread(dev, k->my_cra);
 	/* Pulse index. */
-	DEBIwrite(dev, k->MyCRA, (cra ^ CRAMSK_INDXPOL_A));
-	DEBIwrite(dev, k->MyCRA, cra);
+	DEBIwrite(dev, k->my_cra, (cra ^ CRAMSK_INDXPOL_A));
+	DEBIwrite(dev, k->my_cra, cra);
 }
 
-static void PulseIndex_B(struct comedi_device *dev, struct enc_private *k)
+static void pulse_index_b(struct comedi_device *dev, struct enc_private *k)
 {
 	uint16_t crb;
 
-	crb = DEBIread(dev, k->MyCRB) & ~CRBMSK_INTCTRL;
+	crb = DEBIread(dev, k->my_crb) & ~CRBMSK_INTCTRL;
 	/* Pulse index. */
-	DEBIwrite(dev, k->MyCRB, (crb ^ CRBMSK_INDXPOL_B));
-	DEBIwrite(dev, k->MyCRB, crb);
+	DEBIwrite(dev, k->my_crb, (crb ^ CRBMSK_INDXPOL_B));
+	DEBIwrite(dev, k->my_crb, crb);
 }
 
 static struct enc_private enc_private_data[] = {
 	{
-		.GetEnable	= GetEnable_A,
-		.GetIntSrc	= GetIntSrc_A,
-		.GetLoadTrig	= GetLoadTrig_A,
-		.GetMode	= GetMode_A,
-		.PulseIndex	= PulseIndex_A,
-		.SetEnable	= SetEnable_A,
-		.SetIntSrc	= SetIntSrc_A,
-		.SetLoadTrig	= SetLoadTrig_A,
-		.SetMode	= SetMode_A,
-		.ResetCapFlags	= ResetCapFlags_A,
-		.MyCRA		= LP_CR0A,
-		.MyCRB		= LP_CR0B,
-		.MyLatchLsw	= LP_CNTR0ALSW,
-		.MyEventBits	= EVBITS(0),
+		.get_enable		= get_enable_a,
+		.get_int_src		= get_int_src_a,
+		.get_load_trig		= get_load_trig_a,
+		.get_mode		= get_mode_a,
+		.pulse_index		= pulse_index_a,
+		.set_enable		= set_enable_a,
+		.set_int_src		= set_int_src_a,
+		.set_load_trig		= set_load_trig_a,
+		.set_mode		= set_mode_a,
+		.reset_cap_flags	= reset_cap_flags_a,
+		.my_cra			= LP_CR0A,
+		.my_crb			= LP_CR0B,
+		.my_latch_lsw		= LP_CNTR0ALSW,
+		.my_event_bits		= EVBITS(0),
 	}, {
-		.GetEnable	= GetEnable_A,
-		.GetIntSrc	= GetIntSrc_A,
-		.GetLoadTrig	= GetLoadTrig_A,
-		.GetMode	= GetMode_A,
-		.PulseIndex	= PulseIndex_A,
-		.SetEnable	= SetEnable_A,
-		.SetIntSrc	= SetIntSrc_A,
-		.SetLoadTrig	= SetLoadTrig_A,
-		.SetMode	= SetMode_A,
-		.ResetCapFlags	= ResetCapFlags_A,
-		.MyCRA		= LP_CR1A,
-		.MyCRB		= LP_CR1B,
-		.MyLatchLsw	= LP_CNTR1ALSW,
-		.MyEventBits	= EVBITS(1),
+		.get_enable		= get_enable_a,
+		.get_int_src		= get_int_src_a,
+		.get_load_trig		= get_load_trig_a,
+		.get_mode		= get_mode_a,
+		.pulse_index		= pulse_index_a,
+		.set_enable		= set_enable_a,
+		.set_int_src		= set_int_src_a,
+		.set_load_trig		= set_load_trig_a,
+		.set_mode		= set_mode_a,
+		.reset_cap_flags	= reset_cap_flags_a,
+		.my_cra			= LP_CR1A,
+		.my_crb			= LP_CR1B,
+		.my_latch_lsw		= LP_CNTR1ALSW,
+		.my_event_bits		= EVBITS(1),
 	}, {
-		.GetEnable	= GetEnable_A,
-		.GetIntSrc	= GetIntSrc_A,
-		.GetLoadTrig	= GetLoadTrig_A,
-		.GetMode	= GetMode_A,
-		.PulseIndex	= PulseIndex_A,
-		.SetEnable	= SetEnable_A,
-		.SetIntSrc	= SetIntSrc_A,
-		.SetLoadTrig	= SetLoadTrig_A,
-		.SetMode	= SetMode_A,
-		.ResetCapFlags	= ResetCapFlags_A,
-		.MyCRA		= LP_CR2A,
-		.MyCRB		= LP_CR2B,
-		.MyLatchLsw	= LP_CNTR2ALSW,
-		.MyEventBits	= EVBITS(2),
+		.get_enable		= get_enable_a,
+		.get_int_src		= get_int_src_a,
+		.get_load_trig		= get_load_trig_a,
+		.get_mode		= get_mode_a,
+		.pulse_index		= pulse_index_a,
+		.set_enable		= set_enable_a,
+		.set_int_src		= set_int_src_a,
+		.set_load_trig		= set_load_trig_a,
+		.set_mode		= set_mode_a,
+		.reset_cap_flags	= reset_cap_flags_a,
+		.my_cra			= LP_CR2A,
+		.my_crb			= LP_CR2B,
+		.my_latch_lsw		= LP_CNTR2ALSW,
+		.my_event_bits		= EVBITS(2),
 	}, {
-		.GetEnable	= GetEnable_B,
-		.GetIntSrc	= GetIntSrc_B,
-		.GetLoadTrig	= GetLoadTrig_B,
-		.GetMode	= GetMode_B,
-		.PulseIndex	= PulseIndex_B,
-		.SetEnable	= SetEnable_B,
-		.SetIntSrc	= SetIntSrc_B,
-		.SetLoadTrig	= SetLoadTrig_B,
-		.SetMode	= SetMode_B,
-		.ResetCapFlags	= ResetCapFlags_B,
-		.MyCRA		= LP_CR0A,
-		.MyCRB		= LP_CR0B,
-		.MyLatchLsw	= LP_CNTR0BLSW,
-		.MyEventBits	= EVBITS(3),
+		.get_enable		= get_enable_b,
+		.get_int_src		= get_int_src_b,
+		.get_load_trig		= get_load_trig_b,
+		.get_mode		= get_mode_b,
+		.pulse_index		= pulse_index_b,
+		.set_enable		= set_enable_b,
+		.set_int_src		= set_int_src_b,
+		.set_load_trig		= set_load_trig_b,
+		.set_mode		= set_mode_b,
+		.reset_cap_flags	= reset_cap_flags_b,
+		.my_cra			= LP_CR0A,
+		.my_crb			= LP_CR0B,
+		.my_latch_lsw		= LP_CNTR0BLSW,
+		.my_event_bits		= EVBITS(3),
 	}, {
-		.GetEnable	= GetEnable_B,
-		.GetIntSrc	= GetIntSrc_B,
-		.GetLoadTrig	= GetLoadTrig_B,
-		.GetMode	= GetMode_B,
-		.PulseIndex	= PulseIndex_B,
-		.SetEnable	= SetEnable_B,
-		.SetIntSrc	= SetIntSrc_B,
-		.SetLoadTrig	= SetLoadTrig_B,
-		.SetMode	= SetMode_B,
-		.ResetCapFlags	= ResetCapFlags_B,
-		.MyCRA		= LP_CR1A,
-		.MyCRB		= LP_CR1B,
-		.MyLatchLsw	= LP_CNTR1BLSW,
-		.MyEventBits	= EVBITS(4),
+		.get_enable		= get_enable_b,
+		.get_int_src		= get_int_src_b,
+		.get_load_trig		= get_load_trig_b,
+		.get_mode		= get_mode_b,
+		.pulse_index		= pulse_index_b,
+		.set_enable		= set_enable_b,
+		.set_int_src		= set_int_src_b,
+		.set_load_trig		= set_load_trig_b,
+		.set_mode		= set_mode_b,
+		.reset_cap_flags	= reset_cap_flags_b,
+		.my_cra			= LP_CR1A,
+		.my_crb			= LP_CR1B,
+		.my_latch_lsw		= LP_CNTR1BLSW,
+		.my_event_bits		= EVBITS(4),
 	}, {
-		.GetEnable	= GetEnable_B,
-		.GetIntSrc	= GetIntSrc_B,
-		.GetLoadTrig	= GetLoadTrig_B,
-		.GetMode	= GetMode_B,
-		.PulseIndex	= PulseIndex_B,
-		.SetEnable	= SetEnable_B,
-		.SetIntSrc	= SetIntSrc_B,
-		.SetLoadTrig	= SetLoadTrig_B,
-		.SetMode	= SetMode_B,
-		.ResetCapFlags	= ResetCapFlags_B,
-		.MyCRA		= LP_CR2A,
-		.MyCRB		= LP_CR2B,
-		.MyLatchLsw	= LP_CNTR2BLSW,
-		.MyEventBits	= EVBITS(5),
+		.get_enable		= get_enable_b,
+		.get_int_src		= get_int_src_b,
+		.get_load_trig		= get_load_trig_b,
+		.get_mode		= get_mode_b,
+		.pulse_index		= pulse_index_b,
+		.set_enable		= set_enable_b,
+		.set_int_src		= set_int_src_b,
+		.set_load_trig		= set_load_trig_b,
+		.set_mode		= set_mode_b,
+		.reset_cap_flags	= reset_cap_flags_b,
+		.my_cra			= LP_CR2A,
+		.my_crb			= LP_CR2B,
+		.my_latch_lsw		= LP_CNTR2BLSW,
+		.my_event_bits		= EVBITS(5),
 	},
 };
 
@@ -2454,10 +2459,10 @@ static void CountersInit(struct comedi_device *dev)
 	 */
 	for (chan = 0; chan < S626_ENCODER_CHANNELS; chan++) {
 		k = &encpriv[chan];
-		k->SetMode(dev, k, Setup, TRUE);
-		k->SetIntSrc(dev, k, 0);
-		k->ResetCapFlags(dev, k);
-		k->SetEnable(dev, k, CLKENAB_ALWAYS);
+		k->set_mode(dev, k, Setup, TRUE);
+		k->set_int_src(dev, k, 0);
+		k->reset_cap_flags(dev, k);
+		k->set_enable(dev, k, CLKENAB_ALWAYS);
 	}
 }
 
-- 
cgit 


From cffd7ab94613d2ec818b64ef8dd7f56b625e1aa2 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:27 +0100
Subject: staging: comedi: s626: remove a variable from set_mode_a() and _b()

The `set_mode_a()` and `set_mode_b()` functions use a local variable
`setup` which is initialized to the value of parameter `Setup` which is
not used further.  Get rid of the local variable and rename the
parameter to `setup`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index fcbeb2859923..12ebc85f85d3 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -1958,12 +1958,11 @@ static uint16_t get_mode_b(struct comedi_device *dev, struct enc_private *k)
  * ClkPol, ClkEnab, IndexSrc, IndexPol, LoadSrc.
  */
 static void set_mode_a(struct comedi_device *dev, struct enc_private *k,
-		       uint16_t Setup, uint16_t DisableIntSrc)
+		       uint16_t setup, uint16_t DisableIntSrc)
 {
 	struct s626_private *devpriv = dev->private;
 	uint16_t cra;
 	uint16_t crb;
-	uint16_t setup = Setup;	/*  Cache the Standard Setup. */
 
 	/* Initialize CRA and CRB images. */
 	/* Preload trigger is passed through. */
@@ -2037,12 +2036,11 @@ static void set_mode_a(struct comedi_device *dev, struct enc_private *k,
 }
 
 static void set_mode_b(struct comedi_device *dev, struct enc_private *k,
-		       uint16_t Setup, uint16_t DisableIntSrc)
+		       uint16_t setup, uint16_t DisableIntSrc)
 {
 	struct s626_private *devpriv = dev->private;
 	uint16_t cra;
 	uint16_t crb;
-	uint16_t setup = Setup;	/* Cache the Standard Setup. */
 
 	/* Initialize CRA and CRB images. */
 	/* IndexSrc field is restricted to ENC_X or IndxPol. */
-- 
cgit 


From 19436a0dd7f4b20d736ec8e7c5d4d926de92d760 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:28 +0100
Subject: staging: comedi: s626: rename CamelCase functions

Rename the remaining non-lower-case functions.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 293 +++++++++++++++++-----------------
 1 file changed, 147 insertions(+), 146 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 12ebc85f85d3..6093ca3af5d3 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -196,7 +196,7 @@ static const struct comedi_lrange s626_range_table = {
 /*
  * Execute a DEBI transfer.  This must be called from within a critical section.
  */
-static void DEBItransfer(struct comedi_device *dev)
+static void debi_transfer(struct comedi_device *dev)
 {
 	struct s626_private *devpriv = dev->private;
 
@@ -218,7 +218,7 @@ static void DEBItransfer(struct comedi_device *dev)
 /*
  * Read a value from a gate array register.
  */
-static uint16_t DEBIread(struct comedi_device *dev, uint16_t addr)
+static uint16_t debi_read(struct comedi_device *dev, uint16_t addr)
 {
 	struct s626_private *devpriv = dev->private;
 
@@ -226,7 +226,7 @@ static uint16_t DEBIread(struct comedi_device *dev, uint16_t addr)
 	writel(DEBI_CMD_RDWORD | addr, devpriv->mmio + P_DEBICMD);
 
 	/*  Execute the DEBI transfer. */
-	DEBItransfer(dev);
+	debi_transfer(dev);
 
 	return readl(devpriv->mmio + P_DEBIAD);
 }
@@ -234,7 +234,7 @@ static uint16_t DEBIread(struct comedi_device *dev, uint16_t addr)
 /*
  * Write a value to a gate array register.
  */
-static void DEBIwrite(struct comedi_device *dev, uint16_t addr, uint16_t wdata)
+static void debi_write(struct comedi_device *dev, uint16_t addr, uint16_t wdata)
 {
 	struct s626_private *devpriv = dev->private;
 
@@ -243,7 +243,7 @@ static void DEBIwrite(struct comedi_device *dev, uint16_t addr, uint16_t wdata)
 	writel(wdata, devpriv->mmio + P_DEBIAD);
 
 	/*  Execute the DEBI transfer. */
-	DEBItransfer(dev);
+	debi_transfer(dev);
 }
 
 /*
@@ -251,27 +251,27 @@ static void DEBIwrite(struct comedi_device *dev, uint16_t addr, uint16_t wdata)
  * specifies bits that are to be preserved, wdata is new value to be
  * or'd with the masked original.
  */
-static void DEBIreplace(struct comedi_device *dev, unsigned int addr,
-			unsigned int mask, unsigned int wdata)
+static void debi_replace(struct comedi_device *dev, unsigned int addr,
+			 unsigned int mask, unsigned int wdata)
 {
 	struct s626_private *devpriv = dev->private;
 	unsigned int val;
 
 	addr &= 0xffff;
 	writel(DEBI_CMD_RDWORD | addr, devpriv->mmio + P_DEBICMD);
-	DEBItransfer(dev);
+	debi_transfer(dev);
 
 	writel(DEBI_CMD_WRWORD | addr, devpriv->mmio + P_DEBICMD);
 	val = readl(devpriv->mmio + P_DEBIAD);
 	val &= mask;
 	val |= wdata;
 	writel(val & 0xffff, devpriv->mmio + P_DEBIAD);
-	DEBItransfer(dev);
+	debi_transfer(dev);
 }
 
 /* **************  EEPROM ACCESS FUNCTIONS  ************** */
 
-static uint32_t I2Chandshake(struct comedi_device *dev, uint32_t val)
+static uint32_t i2c_handshake(struct comedi_device *dev, uint32_t val)
 {
 	struct s626_private *devpriv = dev->private;
 	unsigned int ctrl;
@@ -297,7 +297,7 @@ static uint32_t I2Chandshake(struct comedi_device *dev, uint32_t val)
 }
 
 /* Read uint8_t from EEPROM. */
-static uint8_t I2Cread(struct comedi_device *dev, uint8_t addr)
+static uint8_t i2c_read(struct comedi_device *dev, uint8_t addr)
 {
 	struct s626_private *devpriv = dev->private;
 
@@ -307,9 +307,9 @@ static uint8_t I2Cread(struct comedi_device *dev, uint8_t addr)
 	 *  Byte1 = EEPROM internal target address.
 	 *  Byte0 = Not sent.
 	 */
-	if (I2Chandshake(dev, I2C_B2(I2C_ATTRSTART, devpriv->i2c_adrs) |
-			      I2C_B1(I2C_ATTRSTOP, addr) |
-			      I2C_B0(I2C_ATTRNOP, 0)))
+	if (i2c_handshake(dev, I2C_B2(I2C_ATTRSTART, devpriv->i2c_adrs) |
+			       I2C_B1(I2C_ATTRSTOP, addr) |
+			       I2C_B0(I2C_ATTRNOP, 0)))
 		/* Abort function and declare error if handshake failed. */
 		return 0;
 
@@ -319,9 +319,9 @@ static uint8_t I2Cread(struct comedi_device *dev, uint8_t addr)
 	 *  Byte1 receives uint8_t from EEPROM.
 	 *  Byte0 = Not sent.
 	 */
-	if (I2Chandshake(dev, I2C_B2(I2C_ATTRSTART, (devpriv->i2c_adrs | 1)) |
-			      I2C_B1(I2C_ATTRSTOP, 0) |
-			      I2C_B0(I2C_ATTRNOP, 0)))
+	if (i2c_handshake(dev, I2C_B2(I2C_ATTRSTART, (devpriv->i2c_adrs | 1)) |
+			       I2C_B1(I2C_ATTRSTOP, 0) |
+			       I2C_B0(I2C_ATTRNOP, 0)))
 		/* Abort function and declare error if handshake failed. */
 		return 0;
 
@@ -347,7 +347,7 @@ static uint8_t trimadrs[] = {
  * channel 2.  Assumes: (1) TSL2 slot records initialized, and (2)
  * dacpol contains valid target image.
  */
-static void SendDAC(struct comedi_device *dev, uint32_t val)
+static void send_dac(struct comedi_device *dev, uint32_t val)
 {
 	struct s626_private *devpriv = dev->private;
 
@@ -358,12 +358,12 @@ static void SendDAC(struct comedi_device *dev, uint32_t val)
 	 * and audio bit stream signals.  At this point in time we must be
 	 * assured of being in time slot 0.  If we are not in slot 0, the
 	 * serial clock and audio stream signals will be disabled; this is
-	 * because the following DEBIwrite statement (which enables signals
+	 * because the following debi_write statement (which enables signals
 	 * to be passed through the gate array) would execute before the
 	 * trailing edge of WS1/WS3 (which turns off the signals), thus
 	 * causing the signals to be inactive during the DAC write.
 	 */
-	DEBIwrite(dev, LP_DACPOL, devpriv->dacpol);
+	debi_write(dev, LP_DACPOL, devpriv->dacpol);
 
 	/* TRANSFER OUTPUT DWORD VALUE INTO A2'S OUTPUT FIFO ---------------- */
 
@@ -482,7 +482,7 @@ static void SendDAC(struct comedi_device *dev, uint32_t val)
 /*
  * Private helper function: Write setpoint to an application DAC channel.
  */
-static void SetDAC(struct comedi_device *dev, uint16_t chan, short dacdata)
+static void set_dac(struct comedi_device *dev, uint16_t chan, short dacdata)
 {
 	struct s626_private *devpriv = dev->private;
 	uint16_t signmask;
@@ -540,11 +540,11 @@ static void SetDAC(struct comedi_device *dev, uint16_t chan, short dacdata)
 	val |= ((uint32_t)(chan & 1) << 15);	/* Address the DAC channel
 						 * within the device. */
 	val |= (uint32_t)dacdata;	/* Include DAC setpoint data. */
-	SendDAC(dev, val);
+	send_dac(dev, val);
 }
 
-static void WriteTrimDAC(struct comedi_device *dev, uint8_t LogicalChan,
-			 uint8_t DacData)
+static void write_trim_dac(struct comedi_device *dev, uint8_t LogicalChan,
+			   uint8_t DacData)
 {
 	struct s626_private *devpriv = dev->private;
 	uint32_t chan;
@@ -586,16 +586,16 @@ static void WriteTrimDAC(struct comedi_device *dev, uint8_t LogicalChan,
 	 * Address the DAC channel within the trimdac device.
 	 * Include DAC setpoint data.
 	 */
-	SendDAC(dev, (chan << 8) | DacData);
+	send_dac(dev, (chan << 8) | DacData);
 }
 
-static void LoadTrimDACs(struct comedi_device *dev)
+static void load_trim_dacs(struct comedi_device *dev)
 {
 	uint8_t i;
 
 	/* Copy TrimDac setpoint values from EEPROM to TrimDacs. */
 	for (i = 0; i < ARRAY_SIZE(trimchan); i++)
-		WriteTrimDAC(dev, i, I2Cread(dev, trimadrs[i]));
+		write_trim_dac(dev, i, i2c_read(dev, trimadrs[i]));
 }
 
 /* ******  COUNTER FUNCTIONS  ******* */
@@ -610,15 +610,15 @@ static void LoadTrimDACs(struct comedi_device *dev)
 /*
  * Read a counter's output latch.
  */
-static uint32_t ReadLatch(struct comedi_device *dev, struct enc_private *k)
+static uint32_t read_latch(struct comedi_device *dev, struct enc_private *k)
 {
 	uint32_t value;
 
 	/* Latch counts and fetch LSW of latched counts value. */
-	value = DEBIread(dev, k->my_latch_lsw);
+	value = debi_read(dev, k->my_latch_lsw);
 
 	/* Fetch MSW of latched counts and combine with LSW. */
-	value |= ((uint32_t)DEBIread(dev, k->my_latch_lsw + 2) << 16);
+	value |= ((uint32_t)debi_read(dev, k->my_latch_lsw + 2) << 16);
 
 	/* Return latched counts. */
 	return value;
@@ -629,21 +629,21 @@ static uint32_t ReadLatch(struct comedi_device *dev, struct enc_private *k)
  * access, 1: A index latches A, 2: B index latches B, 3: A overflow
  * latches B.
  */
-static void SetLatchSource(struct comedi_device *dev, struct enc_private *k,
-			   uint16_t value)
+static void set_latch_source(struct comedi_device *dev, struct enc_private *k,
+			     uint16_t value)
 {
-	DEBIreplace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_LATCHSRC),
-		    value << CRBBIT_LATCHSRC);
+	debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_LATCHSRC),
+		     value << CRBBIT_LATCHSRC);
 }
 
 /*
  * Write value into counter preload register.
  */
-static void Preload(struct comedi_device *dev, struct enc_private *k,
+static void preload(struct comedi_device *dev, struct enc_private *k,
 		    uint32_t value)
 {
-	DEBIwrite(dev, k->my_latch_lsw, value);
-	DEBIwrite(dev, k->my_latch_lsw + 2, value >> 16);
+	debi_write(dev, k->my_latch_lsw, value);
+	debi_write(dev, k->my_latch_lsw + 2, value >> 16);
 }
 
 static unsigned int s626_ai_reg_to_uint(int data)
@@ -666,19 +666,19 @@ static int s626_dio_set_irq(struct comedi_device *dev, unsigned int chan)
 	unsigned int status;
 
 	/* set channel to capture positive edge */
-	status = DEBIread(dev, LP_RDEDGSEL(group));
-	DEBIwrite(dev, LP_WREDGSEL(group), mask | status);
+	status = debi_read(dev, LP_RDEDGSEL(group));
+	debi_write(dev, LP_WREDGSEL(group), mask | status);
 
 	/* enable interrupt on selected channel */
-	status = DEBIread(dev, LP_RDINTSEL(group));
-	DEBIwrite(dev, LP_WRINTSEL(group), mask | status);
+	status = debi_read(dev, LP_RDINTSEL(group));
+	debi_write(dev, LP_WRINTSEL(group), mask | status);
 
 	/* enable edge capture write command */
-	DEBIwrite(dev, LP_MISC1, MISC1_EDCAP);
+	debi_write(dev, LP_MISC1, MISC1_EDCAP);
 
 	/* enable edge capture on selected channel */
-	status = DEBIread(dev, LP_RDCAPSEL(group));
-	DEBIwrite(dev, LP_WRCAPSEL(group), mask | status);
+	status = debi_read(dev, LP_RDCAPSEL(group));
+	debi_write(dev, LP_WRCAPSEL(group), mask | status);
 
 	return 0;
 }
@@ -687,10 +687,10 @@ static int s626_dio_reset_irq(struct comedi_device *dev, unsigned int group,
 			      unsigned int mask)
 {
 	/* disable edge capture write command */
-	DEBIwrite(dev, LP_MISC1, MISC1_NOEDCAP);
+	debi_write(dev, LP_MISC1, MISC1_NOEDCAP);
 
 	/* enable edge capture on selected channel */
-	DEBIwrite(dev, LP_WRCAPSEL(group), mask);
+	debi_write(dev, LP_WRCAPSEL(group), mask);
 
 	return 0;
 }
@@ -700,11 +700,11 @@ static int s626_dio_clear_irq(struct comedi_device *dev)
 	unsigned int group;
 
 	/* disable edge capture write command */
-	DEBIwrite(dev, LP_MISC1, MISC1_NOEDCAP);
+	debi_write(dev, LP_MISC1, MISC1_NOEDCAP);
 
 	/* clear all dio pending events and interrupt */
 	for (group = 0; group < S626_DIO_BANKS; group++)
-		DEBIwrite(dev, LP_WRCAPSEL(group), 0xffff);
+		debi_write(dev, LP_WRCAPSEL(group), 0xffff);
 
 	return 0;
 }
@@ -766,7 +766,7 @@ static void check_dio_interrupts(struct comedi_device *dev)
 	for (group = 0; group < S626_DIO_BANKS; group++) {
 		irqbit = 0;
 		/* read interrupt type */
-		irqbit = DEBIread(dev, LP_RDCAPFLG(group));
+		irqbit = debi_read(dev, LP_RDCAPFLG(group));
 
 		/* check if interrupt is generated from dio channels */
 		if (irqbit) {
@@ -786,7 +786,7 @@ static void check_counter_interrupts(struct comedi_device *dev)
 	uint16_t irqbit;
 
 	/* read interrupt type */
-	irqbit = DEBIread(dev, LP_RDMISC2);
+	irqbit = debi_read(dev, LP_RDMISC2);
 
 	/* check interrupt on counters */
 	if (irqbit & IRQ_COINT1A) {
@@ -953,7 +953,7 @@ static irqreturn_t s626_irq_handler(int irq, void *d)
 /*
  * This function builds the RPS program for hardware driven acquisition.
  */
-static void ResetADC(struct comedi_device *dev, uint8_t *ppl)
+static void reset_adc(struct comedi_device *dev, uint8_t *ppl)
 {
 	struct s626_private *devpriv = dev->private;
 	uint32_t *pRPS;
@@ -1203,10 +1203,10 @@ static int s626_ai_insn_read(struct comedi_device *dev,
 		AdcSpec = (chan << 8) | (GSEL_BIPOLAR10V);
 
 	/* Switch ADC analog gain. */
-	DEBIwrite(dev, LP_GSEL, AdcSpec);	/* Set gain. */
+	debi_write(dev, LP_GSEL, AdcSpec);	/* Set gain. */
 
 	/* Select ADC analog input channel. */
-	DEBIwrite(dev, LP_ISEL, AdcSpec);	/* Select channel. */
+	debi_write(dev, LP_ISEL, AdcSpec);	/* Select channel. */
 
 	for (n = 0; n < insn->n; n++) {
 		/* Delay 10 microseconds for analog input settling. */
@@ -1357,7 +1357,7 @@ static void s626_timer_load(struct comedi_device *dev, struct enc_private *k,
 	k->set_mode(dev, k, Setup, FALSE);
 
 	/* Set the preload register */
-	Preload(dev, k, tick);
+	preload(dev, k, tick);
 
 	/*
 	 * Software index pulse forces the preload register to load
@@ -1372,7 +1372,7 @@ static void s626_timer_load(struct comedi_device *dev, struct enc_private *k,
 	/* set interrupt on overflow */
 	k->set_int_src(dev, k, INTSRC_OVER);
 
-	SetLatchSource(dev, k, valueSrclatch);
+	set_latch_source(dev, k, valueSrclatch);
 	/* k->set_enable(dev, k, (uint16_t)(enab != 0)); */
 }
 
@@ -1477,7 +1477,7 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		break;
 	}
 
-	ResetADC(dev, ppl);
+	reset_adc(dev, ppl);
 
 	switch (cmd->start_src) {
 	case TRIG_NOW:
@@ -1638,7 +1638,7 @@ static int s626_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
 		devpriv->ao_readback[CR_CHAN(insn->chanspec)] = data[i];
 		dacdata -= (0x1fff);
 
-		SetDAC(dev, chan, dacdata);
+		set_dac(dev, chan, dacdata);
 	}
 
 	return i;
@@ -1669,18 +1669,18 @@ static void s626_dio_init(struct comedi_device *dev)
 	uint16_t group;
 
 	/* Prepare to treat writes to WRCapSel as capture disables. */
-	DEBIwrite(dev, LP_MISC1, MISC1_NOEDCAP);
+	debi_write(dev, LP_MISC1, MISC1_NOEDCAP);
 
 	/* For each group of sixteen channels ... */
 	for (group = 0; group < S626_DIO_BANKS; group++) {
 		/* Disable all interrupts */
-		DEBIwrite(dev, LP_WRINTSEL(group), 0);
+		debi_write(dev, LP_WRINTSEL(group), 0);
 		/* Disable all event captures */
-		DEBIwrite(dev, LP_WRCAPSEL(group), 0xffff);
+		debi_write(dev, LP_WRCAPSEL(group), 0xffff);
 		/* Init all DIOs to default edge polarity */
-		DEBIwrite(dev, LP_WREDGSEL(group), 0);
+		debi_write(dev, LP_WREDGSEL(group), 0);
 		/* Program all outputs to inactive state */
-		DEBIwrite(dev, LP_WRDOUT(group), 0);
+		debi_write(dev, LP_WRDOUT(group), 0);
 	}
 }
 
@@ -1692,9 +1692,9 @@ static int s626_dio_insn_bits(struct comedi_device *dev,
 	unsigned long group = (unsigned long)s->private;
 
 	if (comedi_dio_update_state(s, data))
-		DEBIwrite(dev, LP_WRDOUT(group), s->state);
+		debi_write(dev, LP_WRDOUT(group), s->state);
 
-	data[1] = DEBIread(dev, LP_RDDIN(group));
+	data[1] = debi_read(dev, LP_RDDIN(group));
 
 	return insn->n;
 }
@@ -1711,7 +1711,7 @@ static int s626_dio_insn_config(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
-	DEBIwrite(dev, LP_WRDOUT(group), s->io_bits);
+	debi_write(dev, LP_WRDOUT(group), s->io_bits);
 
 	return insn->n;
 }
@@ -1745,9 +1745,9 @@ static int s626_enc_insn_config(struct comedi_device *dev,
 	/* (data==NULL) ? (Preloadvalue=0) : (Preloadvalue=data[0]); */
 
 	k->set_mode(dev, k, Setup, TRUE);
-	Preload(dev, k, data[0]);
+	preload(dev, k, data[0]);
 	k->pulse_index(dev, k);
-	SetLatchSource(dev, k, valueSrclatch);
+	set_latch_source(dev, k, valueSrclatch);
 	k->set_enable(dev, k, (enab != 0));
 
 	return insn->n;
@@ -1761,7 +1761,7 @@ static int s626_enc_insn_read(struct comedi_device *dev,
 	struct enc_private *k = &encpriv[CR_CHAN(insn->chanspec)];
 
 	for (n = 0; n < insn->n; n++)
-		data[n] = ReadLatch(dev, k);
+		data[n] = read_latch(dev, k);
 
 	return n;
 }
@@ -1773,7 +1773,7 @@ static int s626_enc_insn_write(struct comedi_device *dev,
 	struct enc_private *k = &encpriv[CR_CHAN(insn->chanspec)];
 
 	/* Set the preload register */
-	Preload(dev, k, data[0]);
+	preload(dev, k, data[0]);
 
 	/*
 	 * Software index pulse forces the preload register to load
@@ -1786,15 +1786,15 @@ static int s626_enc_insn_write(struct comedi_device *dev,
 	return 1;
 }
 
-static void WriteMISC2(struct comedi_device *dev, uint16_t NewImage)
+static void write_misc2(struct comedi_device *dev, uint16_t NewImage)
 {
-	DEBIwrite(dev, LP_MISC1, MISC1_WENABLE); /* Enab writes to MISC2. */
-	DEBIwrite(dev, LP_WRMISC2, NewImage);	/* Write new image to MISC2. */
-	DEBIwrite(dev, LP_MISC1, MISC1_WDISABLE); /* Disable writes to MISC2. */
+	debi_write(dev, LP_MISC1, MISC1_WENABLE); /* Enable writes to MISC2. */
+	debi_write(dev, LP_WRMISC2, NewImage);	/* Write new image to MISC2. */
+	debi_write(dev, LP_MISC1, MISC1_WDISABLE); /* Disable writes to MISC2 */
 }
 
-static void CloseDMAB(struct comedi_device *dev, struct buffer_dma *pdma,
-		      size_t bsize)
+static void close_dma_b(struct comedi_device *dev, struct buffer_dma *pdma,
+			size_t bsize)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	void *vbptr;
@@ -1820,14 +1820,14 @@ static void CloseDMAB(struct comedi_device *dev, struct buffer_dma *pdma,
  */
 static void reset_cap_flags_a(struct comedi_device *dev, struct enc_private *k)
 {
-	DEBIreplace(dev, k->my_crb, ~CRBMSK_INTCTRL,
-		    CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A);
+	debi_replace(dev, k->my_crb, ~CRBMSK_INTCTRL,
+		     CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A);
 }
 
 static void reset_cap_flags_b(struct comedi_device *dev, struct enc_private *k)
 {
-	DEBIreplace(dev, k->my_crb, ~CRBMSK_INTCTRL,
-		    CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B);
+	debi_replace(dev, k->my_crb, ~CRBMSK_INTCTRL,
+		     CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B);
 }
 
 /*
@@ -1841,8 +1841,8 @@ static uint16_t get_mode_a(struct comedi_device *dev, struct enc_private *k)
 	uint16_t setup;
 
 	/* Fetch CRA and CRB register images. */
-	cra = DEBIread(dev, k->my_cra);
-	crb = DEBIread(dev, k->my_crb);
+	cra = debi_read(dev, k->my_cra);
+	crb = debi_read(dev, k->my_crb);
 
 	/*
 	 * Populate the standardized counter setup bit fields.
@@ -1896,8 +1896,8 @@ static uint16_t get_mode_b(struct comedi_device *dev, struct enc_private *k)
 	uint16_t setup;
 
 	/* Fetch CRA and CRB register images. */
-	cra = DEBIread(dev, k->my_cra);
-	crb = DEBIread(dev, k->my_crb);
+	cra = debi_read(dev, k->my_cra);
+	crb = debi_read(dev, k->my_crb);
 
 	/*
 	 * Populate the standardized counter setup bit fields.
@@ -2031,8 +2031,8 @@ static void set_mode_a(struct comedi_device *dev, struct enc_private *k,
 	 * While retaining CounterB and LatchSrc configurations, program the
 	 * new counter operating mode.
 	 */
-	DEBIreplace(dev, k->my_cra, CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B, cra);
-	DEBIreplace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A), crb);
+	debi_replace(dev, k->my_cra, CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B, cra);
+	debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A), crb);
 }
 
 static void set_mode_b(struct comedi_device *dev, struct enc_private *k,
@@ -2117,8 +2117,9 @@ static void set_mode_b(struct comedi_device *dev, struct enc_private *k,
 	 * While retaining CounterA and LatchSrc configurations, program the
 	 * new counter operating mode.
 	 */
-	DEBIreplace(dev, k->my_cra, ~(CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B), cra);
-	DEBIreplace(dev, k->my_crb, CRBMSK_CLKENAB_A | CRBMSK_LATCHSRC, crb);
+	debi_replace(dev, k->my_cra, ~(CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B),
+		     cra);
+	debi_replace(dev, k->my_crb, CRBMSK_CLKENAB_A | CRBMSK_LATCHSRC, crb);
 }
 
 /*
@@ -2127,32 +2128,32 @@ static void set_mode_b(struct comedi_device *dev, struct enc_private *k,
 static void set_enable_a(struct comedi_device *dev, struct enc_private *k,
 			 uint16_t enab)
 {
-	DEBIreplace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A),
-		    enab << CRBBIT_CLKENAB_A);
+	debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A),
+		     enab << CRBBIT_CLKENAB_A);
 }
 
 static void set_enable_b(struct comedi_device *dev, struct enc_private *k,
 			 uint16_t enab)
 {
-	DEBIreplace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_B),
-		    enab << CRBBIT_CLKENAB_B);
+	debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_B),
+		     enab << CRBBIT_CLKENAB_B);
 }
 
 static uint16_t get_enable_a(struct comedi_device *dev, struct enc_private *k)
 {
-	return (DEBIread(dev, k->my_crb) >> CRBBIT_CLKENAB_A) & 1;
+	return (debi_read(dev, k->my_crb) >> CRBBIT_CLKENAB_A) & 1;
 }
 
 static uint16_t get_enable_b(struct comedi_device *dev, struct enc_private *k)
 {
-	return (DEBIread(dev, k->my_crb) >> CRBBIT_CLKENAB_B) & 1;
+	return (debi_read(dev, k->my_crb) >> CRBBIT_CLKENAB_B) & 1;
 }
 
 #ifdef unused
-static uint16_t GetLatchSource(struct comedi_device *dev,
-			       struct enc_private *k)
+static uint16_t get_latch_source(struct comedi_device *dev,
+				 struct enc_private *k)
 {
-	return (DEBIread(dev, k->my_crb) >> CRBBIT_LATCHSRC) & 3;
+	return (debi_read(dev, k->my_crb) >> CRBBIT_LATCHSRC) & 3;
 }
 #endif
 
@@ -2164,27 +2165,27 @@ static uint16_t GetLatchSource(struct comedi_device *dev,
 static void set_load_trig_a(struct comedi_device *dev, struct enc_private *k,
 			    uint16_t Trig)
 {
-	DEBIreplace(dev, k->my_cra, ~CRAMSK_LOADSRC_A,
-		    Trig << CRABIT_LOADSRC_A);
+	debi_replace(dev, k->my_cra, ~CRAMSK_LOADSRC_A,
+		     Trig << CRABIT_LOADSRC_A);
 }
 
 static void set_load_trig_b(struct comedi_device *dev, struct enc_private *k,
 			    uint16_t Trig)
 {
-	DEBIreplace(dev, k->my_crb, ~(CRBMSK_LOADSRC_B | CRBMSK_INTCTRL),
-		    Trig << CRBBIT_LOADSRC_B);
+	debi_replace(dev, k->my_crb, ~(CRBMSK_LOADSRC_B | CRBMSK_INTCTRL),
+		     Trig << CRBBIT_LOADSRC_B);
 }
 
 static uint16_t get_load_trig_a(struct comedi_device *dev,
 				struct enc_private *k)
 {
-	return (DEBIread(dev, k->my_cra) >> CRABIT_LOADSRC_A) & 3;
+	return (debi_read(dev, k->my_cra) >> CRABIT_LOADSRC_A) & 3;
 }
 
 static uint16_t get_load_trig_b(struct comedi_device *dev,
 				struct enc_private *k)
 {
-	return (DEBIread(dev, k->my_crb) >> CRBBIT_LOADSRC_B) & 3;
+	return (debi_read(dev, k->my_crb) >> CRBBIT_LOADSRC_B) & 3;
 }
 
 /*
@@ -2198,12 +2199,12 @@ static void set_int_src_a(struct comedi_device *dev, struct enc_private *k,
 	struct s626_private *devpriv = dev->private;
 
 	/* Reset any pending counter overflow or index captures. */
-	DEBIreplace(dev, k->my_crb, ~CRBMSK_INTCTRL,
-		    CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A);
+	debi_replace(dev, k->my_crb, ~CRBMSK_INTCTRL,
+		     CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A);
 
 	/* Program counter interrupt source. */
-	DEBIreplace(dev, k->my_cra, ~CRAMSK_INTSRC_A,
-		    IntSource << CRABIT_INTSRC_A);
+	debi_replace(dev, k->my_cra, ~CRAMSK_INTSRC_A,
+		     IntSource << CRABIT_INTSRC_A);
 
 	/* Update MISC2 interrupt enable mask. */
 	devpriv->counter_int_enabs =
@@ -2218,16 +2219,16 @@ static void set_int_src_b(struct comedi_device *dev, struct enc_private *k,
 	uint16_t crb;
 
 	/* Cache writeable CRB register image. */
-	crb = DEBIread(dev, k->my_crb) & ~CRBMSK_INTCTRL;
+	crb = debi_read(dev, k->my_crb) & ~CRBMSK_INTCTRL;
 
 	/* Reset any pending counter overflow or index captures. */
-	DEBIwrite(dev, k->my_crb,
-		  (uint16_t)(crb | CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B));
+	debi_write(dev, k->my_crb,
+		   (uint16_t)(crb | CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B));
 
 	/* Program counter interrupt source. */
-	DEBIwrite(dev, k->my_crb,
-		  (uint16_t)((crb & ~CRBMSK_INTSRC_B) |
-			     (IntSource << CRBBIT_INTSRC_B)));
+	debi_write(dev, k->my_crb,
+		   (uint16_t)((crb & ~CRBMSK_INTSRC_B) |
+			      (IntSource << CRBBIT_INTSRC_B)));
 
 	/* Update MISC2 interrupt enable mask. */
 	devpriv->counter_int_enabs =
@@ -2237,26 +2238,26 @@ static void set_int_src_b(struct comedi_device *dev, struct enc_private *k,
 
 static uint16_t get_int_src_a(struct comedi_device *dev, struct enc_private *k)
 {
-	return (DEBIread(dev, k->my_cra) >> CRABIT_INTSRC_A) & 3;
+	return (debi_read(dev, k->my_cra) >> CRABIT_INTSRC_A) & 3;
 }
 
 static uint16_t get_int_src_b(struct comedi_device *dev, struct enc_private *k)
 {
-	return (DEBIread(dev, k->my_crb) >> CRBBIT_INTSRC_B) & 3;
+	return (debi_read(dev, k->my_crb) >> CRBBIT_INTSRC_B) & 3;
 }
 
 #ifdef unused
 /*
  * Return/set the clock multiplier.
  */
-static void SetClkMult(struct comedi_device *dev, struct enc_private *k,
-		       uint16_t value)
+static void set_clk_mult(struct comedi_device *dev, struct enc_private *k,
+			 uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKMULT) |
 			    (value << STDBIT_CLKMULT)), FALSE);
 }
 
-static uint16_t GetClkMult(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_clk_mult(struct comedi_device *dev, struct enc_private *k)
 {
 	return (k->get_mode(dev, k) >> STDBIT_CLKMULT) & 3;
 }
@@ -2264,14 +2265,14 @@ static uint16_t GetClkMult(struct comedi_device *dev, struct enc_private *k)
 /*
  * Return/set the clock polarity.
  */
-static void SetClkPol(struct comedi_device *dev, struct enc_private *k,
-		      uint16_t value)
+static void set_clk_pol(struct comedi_device *dev, struct enc_private *k,
+			uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKPOL) |
 			    (value << STDBIT_CLKPOL)), FALSE);
 }
 
-static uint16_t GetClkPol(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_clk_pol(struct comedi_device *dev, struct enc_private *k)
 {
 	return (k->get_mode(dev, k) >> STDBIT_CLKPOL) & 1;
 }
@@ -2279,14 +2280,14 @@ static uint16_t GetClkPol(struct comedi_device *dev, struct enc_private *k)
 /*
  * Return/set the clock source.
  */
-static void SetClkSrc(struct comedi_device *dev, struct enc_private *k,
-		      uint16_t value)
+static void set_clk_src(struct comedi_device *dev, struct enc_private *k,
+			uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKSRC) |
 			    (value << STDBIT_CLKSRC)), FALSE);
 }
 
-static uint16_t GetClkSrc(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_clk_src(struct comedi_device *dev, struct enc_private *k)
 {
 	return (k->get_mode(dev, k) >> STDBIT_CLKSRC) & 3;
 }
@@ -2294,14 +2295,14 @@ static uint16_t GetClkSrc(struct comedi_device *dev, struct enc_private *k)
 /*
  * Return/set the index polarity.
  */
-static void SetIndexPol(struct comedi_device *dev, struct enc_private *k,
-			uint16_t value)
+static void set_index_pol(struct comedi_device *dev, struct enc_private *k,
+			  uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_INDXPOL) |
 			    ((value != 0) << STDBIT_INDXPOL)), FALSE);
 }
 
-static uint16_t GetIndexPol(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_index_pol(struct comedi_device *dev, struct enc_private *k)
 {
 	return (k->get_mode(dev, k) >> STDBIT_INDXPOL) & 1;
 }
@@ -2309,14 +2310,14 @@ static uint16_t GetIndexPol(struct comedi_device *dev, struct enc_private *k)
 /*
  * Return/set the index source.
  */
-static void SetIndexSrc(struct comedi_device *dev, struct enc_private *k,
-			uint16_t value)
+static void set_index_src(struct comedi_device *dev, struct enc_private *k,
+			  uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_INDXSRC) |
 			    ((value != 0) << STDBIT_INDXSRC)), FALSE);
 }
 
-static uint16_t GetIndexSrc(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_index_src(struct comedi_device *dev, struct enc_private *k)
 {
 	return (k->get_mode(dev, k) >> STDBIT_INDXSRC) & 1;
 }
@@ -2329,20 +2330,20 @@ static void pulse_index_a(struct comedi_device *dev, struct enc_private *k)
 {
 	uint16_t cra;
 
-	cra = DEBIread(dev, k->my_cra);
+	cra = debi_read(dev, k->my_cra);
 	/* Pulse index. */
-	DEBIwrite(dev, k->my_cra, (cra ^ CRAMSK_INDXPOL_A));
-	DEBIwrite(dev, k->my_cra, cra);
+	debi_write(dev, k->my_cra, (cra ^ CRAMSK_INDXPOL_A));
+	debi_write(dev, k->my_cra, cra);
 }
 
 static void pulse_index_b(struct comedi_device *dev, struct enc_private *k)
 {
 	uint16_t crb;
 
-	crb = DEBIread(dev, k->my_crb) & ~CRBMSK_INTCTRL;
+	crb = debi_read(dev, k->my_crb) & ~CRBMSK_INTCTRL;
 	/* Pulse index. */
-	DEBIwrite(dev, k->my_crb, (crb ^ CRBMSK_INDXPOL_B));
-	DEBIwrite(dev, k->my_crb, crb);
+	debi_write(dev, k->my_crb, (crb ^ CRBMSK_INDXPOL_B));
+	debi_write(dev, k->my_crb, crb);
 }
 
 static struct enc_private enc_private_data[] = {
@@ -2439,7 +2440,7 @@ static struct enc_private enc_private_data[] = {
 	},
 };
 
-static void CountersInit(struct comedi_device *dev)
+static void counters_init(struct comedi_device *dev)
 {
 	int chan;
 	struct enc_private *k;
@@ -2587,7 +2588,7 @@ static void s626_initialize(struct comedi_device *dev)
 
 		/* Create a simple polling list for analog input channel 0 */
 		PollList = EOPL;
-		ResetADC(dev, &PollList);
+		reset_adc(dev, &PollList);
 
 		/* Get initial ADC value */
 		s626_ai_rinsn(dev, dev->subdevices, NULL, data);
@@ -2685,8 +2686,8 @@ static void s626_initialize(struct comedi_device *dev)
 	 * SAA7146 audio channel does not always reset properly and
 	 * sometimes causes the first few TrimDAC writes to malfunction.
 	 */
-	LoadTrimDACs(dev);
-	LoadTrimDACs(dev);
+	load_trim_dacs(dev);
+	load_trim_dacs(dev);
 
 	/*
 	 * Manually init all gate array hardware in case this is a soft
@@ -2701,10 +2702,10 @@ static void s626_initialize(struct comedi_device *dev)
 	 * polarity images.
 	 */
 	for (chan = 0; chan < S626_DAC_CHANNELS; chan++)
-		SetDAC(dev, chan, 0);
+		set_dac(dev, chan, 0);
 
 	/* Init counters */
-	CountersInit(dev);
+	counters_init(dev);
 
 	/*
 	 * Without modifying the state of the Battery Backup enab, disable
@@ -2712,8 +2713,8 @@ static void s626_initialize(struct comedi_device *dev)
 	 * standard DIO (vs. counter overflow) mode, disable the battery
 	 * charger, and reset the watchdog interval selector to zero.
 	 */
-	WriteMISC2(dev, (uint16_t)(DEBIread(dev, LP_RDMISC2) &
-				   MISC2_BATT_ENABLE));
+	write_misc2(dev, (uint16_t)(debi_read(dev, LP_RDMISC2) &
+				    MISC2_BATT_ENABLE));
 
 	/* Initialize the digital I/O subsystem */
 	s626_dio_init(dev);
@@ -2861,14 +2862,14 @@ static void s626_detach(struct comedi_device *dev)
 			       devpriv->mmio + P_ISR);
 
 			/* Disable the watchdog timer and battery charger. */
-			WriteMISC2(dev, 0);
+			write_misc2(dev, 0);
 
 			/* Close all interfaces on 7146 device */
 			writel(MC1_SHUTDOWN, devpriv->mmio + P_MC1);
 			writel(ACON1_BASE, devpriv->mmio + P_ACON1);
 
-			CloseDMAB(dev, &devpriv->rps_buf, DMABUF_SIZE);
-			CloseDMAB(dev, &devpriv->ana_buf, DMABUF_SIZE);
+			close_dma_b(dev, &devpriv->rps_buf, DMABUF_SIZE);
+			close_dma_b(dev, &devpriv->ana_buf, DMABUF_SIZE);
 		}
 
 		if (dev->irq)
-- 
cgit 


From f1f7efce3b875126a817b8d6c0a49a4a025831a3 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:29 +0100
Subject: staging: comedi: s626: rename CamelCase variables

Rename the remaining CamelCase parameters and variables.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 258 +++++++++++++++++-----------------
 1 file changed, 129 insertions(+), 129 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 6093ca3af5d3..e4340e3929f2 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -145,7 +145,7 @@ struct enc_private {
 
 /*
  * Translation table to map IntSrc into equivalent RDMISC2 event flag  bits.
- * static const uint16_t EventBits[][4] =
+ * static const uint16_t event_bits[][4] =
  *     { EVBITS(0), EVBITS(1), EVBITS(2), EVBITS(3), EVBITS(4), EVBITS(5) };
  */
 
@@ -486,7 +486,7 @@ static void set_dac(struct comedi_device *dev, uint16_t chan, short dacdata)
 {
 	struct s626_private *devpriv = dev->private;
 	uint16_t signmask;
-	uint32_t WSImage;
+	uint32_t ws_image;
 	uint32_t val;
 
 	/*
@@ -516,11 +516,11 @@ static void set_dac(struct comedi_device *dev, uint16_t chan, short dacdata)
 	 */
 
 	/* Choose DAC chip select to be asserted */
-	WSImage = (chan & 2) ? WS1 : WS2;
+	ws_image = (chan & 2) ? WS1 : WS2;
 	/* Slot 2: Transmit high data byte to target DAC */
-	writel(XSD2 | XFIFO_1 | WSImage, devpriv->mmio + VECTPORT(2));
+	writel(XSD2 | XFIFO_1 | ws_image, devpriv->mmio + VECTPORT(2));
 	/* Slot 3: Transmit low data byte to target DAC */
-	writel(XSD2 | XFIFO_0 | WSImage, devpriv->mmio + VECTPORT(3));
+	writel(XSD2 | XFIFO_0 | ws_image, devpriv->mmio + VECTPORT(3));
 	/* Slot 4: Transmit to non-existent TrimDac channel to keep clock */
 	writel(XSD2 | XFIFO_3 | WS3, devpriv->mmio + VECTPORT(4));
 	/* Slot 5: running after writing target DAC's low data byte */
@@ -543,8 +543,8 @@ static void set_dac(struct comedi_device *dev, uint16_t chan, short dacdata)
 	send_dac(dev, val);
 }
 
-static void write_trim_dac(struct comedi_device *dev, uint8_t LogicalChan,
-			   uint8_t DacData)
+static void write_trim_dac(struct comedi_device *dev, uint8_t logical_chan,
+			   uint8_t dac_data)
 {
 	struct s626_private *devpriv = dev->private;
 	uint32_t chan;
@@ -553,10 +553,10 @@ static void write_trim_dac(struct comedi_device *dev, uint8_t LogicalChan,
 	 * Save the new setpoint in case the application needs to read it back
 	 * later.
 	 */
-	devpriv->trim_setpoint[LogicalChan] = (uint8_t)DacData;
+	devpriv->trim_setpoint[logical_chan] = (uint8_t)dac_data;
 
 	/* Map logical channel number to physical channel number. */
-	chan = trimchan[LogicalChan];
+	chan = trimchan[logical_chan];
 
 	/*
 	 * Set up TSL2 records for TrimDac write operation.  All slots shift
@@ -586,7 +586,7 @@ static void write_trim_dac(struct comedi_device *dev, uint8_t LogicalChan,
 	 * Address the DAC channel within the trimdac device.
 	 * Include DAC setpoint data.
 	 */
-	send_dac(dev, (chan << 8) | DacData);
+	send_dac(dev, (chan << 8) | dac_data);
 }
 
 static void load_trim_dacs(struct comedi_device *dev)
@@ -956,18 +956,18 @@ static irqreturn_t s626_irq_handler(int irq, void *d)
 static void reset_adc(struct comedi_device *dev, uint8_t *ppl)
 {
 	struct s626_private *devpriv = dev->private;
-	uint32_t *pRPS;
-	uint32_t JmpAdrs;
+	uint32_t *rps;
+	uint32_t jmp_adrs;
 	uint16_t i;
 	uint16_t n;
-	uint32_t LocalPPL;
+	uint32_t local_ppl;
 	struct comedi_cmd *cmd = &dev->subdevices->async->cmd;
 
 	/* Stop RPS program in case it is currently running */
 	s626_mc_disable(dev, MC1_ERPS1, P_MC1);
 
 	/* Set starting logical address to write RPS commands. */
-	pRPS = (uint32_t *)devpriv->rps_buf.logical_base;
+	rps = (uint32_t *)devpriv->rps_buf.logical_base;
 
 	/* Initialize RPS instruction pointer */
 	writel((uint32_t)devpriv->rps_buf.physical_base,
@@ -976,8 +976,8 @@ static void reset_adc(struct comedi_device *dev, uint8_t *ppl)
 	/* Construct RPS program in rps_buf DMA buffer */
 	if (cmd != NULL && cmd->scan_begin_src != TRIG_FOLLOW) {
 		/* Wait for Start trigger. */
-		*pRPS++ = RPS_PAUSE | RPS_SIGADC;
-		*pRPS++ = RPS_CLRSIGNAL | RPS_SIGADC;
+		*rps++ = RPS_PAUSE | RPS_SIGADC;
+		*rps++ = RPS_CLRSIGNAL | RPS_SIGADC;
 	}
 
 	/*
@@ -989,15 +989,15 @@ static void reset_adc(struct comedi_device *dev, uint8_t *ppl)
 	 * the previously programmed value.
 	 */
 	/* Write DEBI Write command and address to shadow RAM. */
-	*pRPS++ = RPS_LDREG | (P_DEBICMD >> 2);
-	*pRPS++ = DEBI_CMD_WRWORD | LP_GSEL;
-	*pRPS++ = RPS_LDREG | (P_DEBIAD >> 2);
+	*rps++ = RPS_LDREG | (P_DEBICMD >> 2);
+	*rps++ = DEBI_CMD_WRWORD | LP_GSEL;
+	*rps++ = RPS_LDREG | (P_DEBIAD >> 2);
 	/* Write DEBI immediate data  to shadow RAM: */
-	*pRPS++ = GSEL_BIPOLAR5V;	/* arbitrary immediate data  value. */
-	*pRPS++ = RPS_CLRSIGNAL | RPS_DEBI;
+	*rps++ = GSEL_BIPOLAR5V;	/* arbitrary immediate data  value. */
+	*rps++ = RPS_CLRSIGNAL | RPS_DEBI;
 	/* Reset "shadow RAM  uploaded" flag. */
-	*pRPS++ = RPS_UPLOAD | RPS_DEBI;	/* Invoke shadow RAM upload. */
-	*pRPS++ = RPS_PAUSE | RPS_DEBI;	/* Wait for shadow upload to finish. */
+	*rps++ = RPS_UPLOAD | RPS_DEBI;	/* Invoke shadow RAM upload. */
+	*rps++ = RPS_PAUSE | RPS_DEBI;	/* Wait for shadow upload to finish. */
 
 	/*
 	 * Digitize all slots in the poll list. This is implemented as a
@@ -1012,35 +1012,35 @@ static void reset_adc(struct comedi_device *dev, uint8_t *ppl)
 		 * (EOPL,x,x,RANGE,CHAN<3:0>), where RANGE code indicates 0 =
 		 * +-10V, 1 = +-5V, and EOPL = End of Poll List marker.
 		 */
-		LocalPPL = (*ppl << 8) | (*ppl & 0x10 ? GSEL_BIPOLAR5V :
-					  GSEL_BIPOLAR10V);
+		local_ppl = (*ppl << 8) | (*ppl & 0x10 ? GSEL_BIPOLAR5V :
+					   GSEL_BIPOLAR10V);
 
 		/* Switch ADC analog gain. */
 		/* Write DEBI command and address to shadow RAM. */
-		*pRPS++ = RPS_LDREG | (P_DEBICMD >> 2);
-		*pRPS++ = DEBI_CMD_WRWORD | LP_GSEL;
+		*rps++ = RPS_LDREG | (P_DEBICMD >> 2);
+		*rps++ = DEBI_CMD_WRWORD | LP_GSEL;
 		/* Write DEBI immediate data to shadow RAM. */
-		*pRPS++ = RPS_LDREG | (P_DEBIAD >> 2);
-		*pRPS++ = LocalPPL;
+		*rps++ = RPS_LDREG | (P_DEBIAD >> 2);
+		*rps++ = local_ppl;
 		/* Reset "shadow RAM uploaded" flag. */
-		*pRPS++ = RPS_CLRSIGNAL | RPS_DEBI;
+		*rps++ = RPS_CLRSIGNAL | RPS_DEBI;
 		/* Invoke shadow RAM upload. */
-		*pRPS++ = RPS_UPLOAD | RPS_DEBI;
+		*rps++ = RPS_UPLOAD | RPS_DEBI;
 		/* Wait for shadow upload to finish. */
-		*pRPS++ = RPS_PAUSE | RPS_DEBI;
+		*rps++ = RPS_PAUSE | RPS_DEBI;
 		/* Select ADC analog input channel. */
-		*pRPS++ = RPS_LDREG | (P_DEBICMD >> 2);
+		*rps++ = RPS_LDREG | (P_DEBICMD >> 2);
 		/* Write DEBI command and address to shadow RAM. */
-		*pRPS++ = DEBI_CMD_WRWORD | LP_ISEL;
-		*pRPS++ = RPS_LDREG | (P_DEBIAD >> 2);
+		*rps++ = DEBI_CMD_WRWORD | LP_ISEL;
+		*rps++ = RPS_LDREG | (P_DEBIAD >> 2);
 		/* Write DEBI immediate data to shadow RAM. */
-		*pRPS++ = LocalPPL;
+		*rps++ = local_ppl;
 		/* Reset "shadow RAM uploaded" flag. */
-		*pRPS++ = RPS_CLRSIGNAL | RPS_DEBI;
+		*rps++ = RPS_CLRSIGNAL | RPS_DEBI;
 		/* Invoke shadow RAM upload. */
-		*pRPS++ = RPS_UPLOAD | RPS_DEBI;
+		*rps++ = RPS_UPLOAD | RPS_DEBI;
 		/* Wait for shadow upload to finish. */
-		*pRPS++ = RPS_PAUSE | RPS_DEBI;
+		*rps++ = RPS_PAUSE | RPS_DEBI;
 
 		/*
 		 * Delay at least 10 microseconds for analog input settling.
@@ -1049,42 +1049,42 @@ static void reset_adc(struct comedi_device *dev, uint8_t *ppl)
 		 * possible with NOPs because each RPS_JUMP flushes the RPS'
 		 * instruction prefetch pipeline.
 		 */
-		JmpAdrs =
+		jmp_adrs =
 			(uint32_t)devpriv->rps_buf.physical_base +
-			(uint32_t)((unsigned long)pRPS -
+			(uint32_t)((unsigned long)rps -
 				   (unsigned long)devpriv->
 						  rps_buf.logical_base);
 		for (i = 0; i < (10 * RPSCLK_PER_US / 2); i++) {
-			JmpAdrs += 8;	/* Repeat to implement time delay: */
-			*pRPS++ = RPS_JUMP; /* Jump to next RPS instruction. */
-			*pRPS++ = JmpAdrs;
+			jmp_adrs += 8;	/* Repeat to implement time delay: */
+			*rps++ = RPS_JUMP; /* Jump to next RPS instruction. */
+			*rps++ = jmp_adrs;
 		}
 
 		if (cmd != NULL && cmd->convert_src != TRIG_NOW) {
 			/* Wait for Start trigger. */
-			*pRPS++ = RPS_PAUSE | RPS_SIGADC;
-			*pRPS++ = RPS_CLRSIGNAL | RPS_SIGADC;
+			*rps++ = RPS_PAUSE | RPS_SIGADC;
+			*rps++ = RPS_CLRSIGNAL | RPS_SIGADC;
 		}
 		/* Start ADC by pulsing GPIO1. */
 		/* Begin ADC Start pulse. */
-		*pRPS++ = RPS_LDREG | (P_GPIO >> 2);
-		*pRPS++ = GPIO_BASE | GPIO1_LO;
-		*pRPS++ = RPS_NOP;
+		*rps++ = RPS_LDREG | (P_GPIO >> 2);
+		*rps++ = GPIO_BASE | GPIO1_LO;
+		*rps++ = RPS_NOP;
 		/* VERSION 2.03 CHANGE: STRETCH OUT ADC START PULSE. */
 		/* End ADC Start pulse. */
-		*pRPS++ = RPS_LDREG | (P_GPIO >> 2);
-		*pRPS++ = GPIO_BASE | GPIO1_HI;
+		*rps++ = RPS_LDREG | (P_GPIO >> 2);
+		*rps++ = GPIO_BASE | GPIO1_HI;
 		/*
 		 * Wait for ADC to complete (GPIO2 is asserted high when ADC not
 		 * busy) and for data from previous conversion to shift into FB
 		 * BUFFER 1 register.
 		 */
-		*pRPS++ = RPS_PAUSE | RPS_GPIO2;	/* Wait for ADC done. */
+		*rps++ = RPS_PAUSE | RPS_GPIO2;	/* Wait for ADC done. */
 
 		/* Transfer ADC data from FB BUFFER 1 register to DMA buffer. */
-		*pRPS++ = RPS_STREG | (BUGFIX_STREG(P_FB_BUFFER1) >> 2);
-		*pRPS++ = (uint32_t)devpriv->ana_buf.physical_base +
-			  (devpriv->adc_items << 2);
+		*rps++ = RPS_STREG | (BUGFIX_STREG(P_FB_BUFFER1) >> 2);
+		*rps++ = (uint32_t)devpriv->ana_buf.physical_base +
+			 (devpriv->adc_items << 2);
 
 		/*
 		 * If this slot's EndOfPollList flag is set, all channels have
@@ -1105,41 +1105,41 @@ static void reset_adc(struct comedi_device *dev, uint8_t *ppl)
 	 * is sometimes set to the previous conversion's data value.
 	 */
 	for (n = 0; n < (2 * RPSCLK_PER_US); n++)
-		*pRPS++ = RPS_NOP;
+		*rps++ = RPS_NOP;
 
 	/*
 	 * Start a dummy conversion to cause the data from the last
 	 * conversion of interest to be shifted in.
 	 */
-	*pRPS++ = RPS_LDREG | (P_GPIO >> 2);	/* Begin ADC Start pulse. */
-	*pRPS++ = GPIO_BASE | GPIO1_LO;
-	*pRPS++ = RPS_NOP;
+	*rps++ = RPS_LDREG | (P_GPIO >> 2);	/* Begin ADC Start pulse. */
+	*rps++ = GPIO_BASE | GPIO1_LO;
+	*rps++ = RPS_NOP;
 	/* VERSION 2.03 CHANGE: STRETCH OUT ADC START PULSE. */
-	*pRPS++ = RPS_LDREG | (P_GPIO >> 2);	/* End ADC Start pulse. */
-	*pRPS++ = GPIO_BASE | GPIO1_HI;
+	*rps++ = RPS_LDREG | (P_GPIO >> 2);	/* End ADC Start pulse. */
+	*rps++ = GPIO_BASE | GPIO1_HI;
 
 	/*
 	 * Wait for the data from the last conversion of interest to arrive
 	 * in FB BUFFER 1 register.
 	 */
-	*pRPS++ = RPS_PAUSE | RPS_GPIO2;	/* Wait for ADC done. */
+	*rps++ = RPS_PAUSE | RPS_GPIO2;	/* Wait for ADC done. */
 
 	/* Transfer final ADC data from FB BUFFER 1 register to DMA buffer. */
-	*pRPS++ = RPS_STREG | (BUGFIX_STREG(P_FB_BUFFER1) >> 2);
-	*pRPS++ = (uint32_t)devpriv->ana_buf.physical_base +
-		  (devpriv->adc_items << 2);
+	*rps++ = RPS_STREG | (BUGFIX_STREG(P_FB_BUFFER1) >> 2);
+	*rps++ = (uint32_t)devpriv->ana_buf.physical_base +
+		 (devpriv->adc_items << 2);
 
 	/* Indicate ADC scan loop is finished. */
 	/* Signal ReadADC() that scan is done. */
-	/* *pRPS++= RPS_CLRSIGNAL | RPS_SIGADC; */
+	/* *rps++= RPS_CLRSIGNAL | RPS_SIGADC; */
 
 	/* invoke interrupt */
 	if (devpriv->ai_cmd_running == 1)
-		*pRPS++ = RPS_IRQ;
+		*rps++ = RPS_IRQ;
 
 	/* Restart RPS program at its beginning. */
-	*pRPS++ = RPS_JUMP;	/* Branch to start of RPS program. */
-	*pRPS++ = (uint32_t)devpriv->rps_buf.physical_base;
+	*rps++ = RPS_JUMP;	/* Branch to start of RPS program. */
+	*rps++ = (uint32_t)devpriv->rps_buf.physical_base;
 
 	/* End of RPS program build */
 }
@@ -1188,8 +1188,8 @@ static int s626_ai_insn_read(struct comedi_device *dev,
 	struct s626_private *devpriv = dev->private;
 	uint16_t chan = CR_CHAN(insn->chanspec);
 	uint16_t range = CR_RANGE(insn->chanspec);
-	uint16_t AdcSpec = 0;
-	uint32_t GpioImage;
+	uint16_t adc_spec = 0;
+	uint32_t gpio_image;
 	int tmp;
 	int n;
 
@@ -1198,29 +1198,29 @@ static int s626_ai_insn_read(struct comedi_device *dev,
 	 *  appropriate for register programming.
 	 */
 	if (range == 0)
-		AdcSpec = (chan << 8) | (GSEL_BIPOLAR5V);
+		adc_spec = (chan << 8) | (GSEL_BIPOLAR5V);
 	else
-		AdcSpec = (chan << 8) | (GSEL_BIPOLAR10V);
+		adc_spec = (chan << 8) | (GSEL_BIPOLAR10V);
 
 	/* Switch ADC analog gain. */
-	debi_write(dev, LP_GSEL, AdcSpec);	/* Set gain. */
+	debi_write(dev, LP_GSEL, adc_spec);	/* Set gain. */
 
 	/* Select ADC analog input channel. */
-	debi_write(dev, LP_ISEL, AdcSpec);	/* Select channel. */
+	debi_write(dev, LP_ISEL, adc_spec);	/* Select channel. */
 
 	for (n = 0; n < insn->n; n++) {
 		/* Delay 10 microseconds for analog input settling. */
 		udelay(10);
 
 		/* Start ADC by pulsing GPIO1 low */
-		GpioImage = readl(devpriv->mmio + P_GPIO);
+		gpio_image = readl(devpriv->mmio + P_GPIO);
 		/* Assert ADC Start command */
-		writel(GpioImage & ~GPIO1_HI, devpriv->mmio + P_GPIO);
+		writel(gpio_image & ~GPIO1_HI, devpriv->mmio + P_GPIO);
 		/* and stretch it out */
-		writel(GpioImage & ~GPIO1_HI, devpriv->mmio + P_GPIO);
-		writel(GpioImage & ~GPIO1_HI, devpriv->mmio + P_GPIO);
+		writel(gpio_image & ~GPIO1_HI, devpriv->mmio + P_GPIO);
+		writel(gpio_image & ~GPIO1_HI, devpriv->mmio + P_GPIO);
 		/* Negate ADC Start command */
-		writel(GpioImage | GPIO1_HI, devpriv->mmio + P_GPIO);
+		writel(gpio_image | GPIO1_HI, devpriv->mmio + P_GPIO);
 
 		/*
 		 * Wait for ADC to complete (GPIO2 is asserted high when
@@ -1254,14 +1254,14 @@ static int s626_ai_insn_read(struct comedi_device *dev,
 	 * Start a dummy conversion to cause the data from the
 	 * previous conversion to be shifted in.
 	 */
-	GpioImage = readl(devpriv->mmio + P_GPIO);
+	gpio_image = readl(devpriv->mmio + P_GPIO);
 	/* Assert ADC Start command */
-	writel(GpioImage & ~GPIO1_HI, devpriv->mmio + P_GPIO);
+	writel(gpio_image & ~GPIO1_HI, devpriv->mmio + P_GPIO);
 	/* and stretch it out */
-	writel(GpioImage & ~GPIO1_HI, devpriv->mmio + P_GPIO);
-	writel(GpioImage & ~GPIO1_HI, devpriv->mmio + P_GPIO);
+	writel(gpio_image & ~GPIO1_HI, devpriv->mmio + P_GPIO);
+	writel(gpio_image & ~GPIO1_HI, devpriv->mmio + P_GPIO);
 	/* Negate ADC Start command */
-	writel(GpioImage | GPIO1_HI, devpriv->mmio + P_GPIO);
+	writel(gpio_image | GPIO1_HI, devpriv->mmio + P_GPIO);
 
 	/* Wait for the data to arrive in FB BUFFER 1 register. */
 
@@ -1343,7 +1343,7 @@ static int s626_ns_to_timer(int *nanosec, int round_mode)
 static void s626_timer_load(struct comedi_device *dev, struct enc_private *k,
 			    int tick)
 {
-	uint16_t Setup =
+	uint16_t setup =
 		(LOADSRC_INDX << BF_LOADSRC) |	/* Preload upon index. */
 		(INDXSRC_SOFT << BF_INDXSRC) |	/* Disable hardware index. */
 		(CLKSRC_TIMER << BF_CLKSRC) |	/* Operating mode is Timer. */
@@ -1351,10 +1351,10 @@ static void s626_timer_load(struct comedi_device *dev, struct enc_private *k,
 		(CNTDIR_DOWN << BF_CLKPOL) |	/* Count direction is Down. */
 		(CLKMULT_1X << BF_CLKMULT) |	/* Clock multiplier is 1x. */
 		(CLKENAB_INDEX << BF_CLKENAB);
-	uint16_t valueSrclatch = LATCHSRC_A_INDXA;
+	uint16_t value_latchsrc = LATCHSRC_A_INDXA;
 	/* uint16_t enab = CLKENAB_ALWAYS; */
 
-	k->set_mode(dev, k, Setup, FALSE);
+	k->set_mode(dev, k, setup, FALSE);
 
 	/* Set the preload register */
 	preload(dev, k, tick);
@@ -1372,7 +1372,7 @@ static void s626_timer_load(struct comedi_device *dev, struct enc_private *k,
 	/* set interrupt on overflow */
 	k->set_int_src(dev, k, INTSRC_OVER);
 
-	set_latch_source(dev, k, valueSrclatch);
+	set_latch_source(dev, k, value_latchsrc);
 	/* k->set_enable(dev, k, (uint16_t)(enab != 0)); */
 }
 
@@ -1729,25 +1729,25 @@ static int s626_enc_insn_config(struct comedi_device *dev,
 				struct comedi_subdevice *s,
 				struct comedi_insn *insn, unsigned int *data)
 {
-	uint16_t Setup =
+	uint16_t setup =
 		(LOADSRC_INDX << BF_LOADSRC) |	/* Preload upon index. */
 		(INDXSRC_SOFT << BF_INDXSRC) |	/* Disable hardware index. */
 		(CLKSRC_COUNTER << BF_CLKSRC) |	/* Operating mode is Counter. */
 		(CLKPOL_POS << BF_CLKPOL) |	/* Active high clock. */
 		(CLKMULT_1X << BF_CLKMULT) |	/* Clock multiplier is 1x. */
 		(CLKENAB_INDEX << BF_CLKENAB);
-	/* uint16_t DisableIntSrc = TRUE; */
+	/* uint16_t disable_int_src = TRUE; */
 	/* uint32_t Preloadvalue;              //Counter initial value */
-	uint16_t valueSrclatch = LATCHSRC_AB_READ;
+	uint16_t value_latchsrc = LATCHSRC_AB_READ;
 	uint16_t enab = CLKENAB_ALWAYS;
 	struct enc_private *k = &encpriv[CR_CHAN(insn->chanspec)];
 
 	/* (data==NULL) ? (Preloadvalue=0) : (Preloadvalue=data[0]); */
 
-	k->set_mode(dev, k, Setup, TRUE);
+	k->set_mode(dev, k, setup, TRUE);
 	preload(dev, k, data[0]);
 	k->pulse_index(dev, k);
-	set_latch_source(dev, k, valueSrclatch);
+	set_latch_source(dev, k, value_latchsrc);
 	k->set_enable(dev, k, (enab != 0));
 
 	return insn->n;
@@ -1786,10 +1786,10 @@ static int s626_enc_insn_write(struct comedi_device *dev,
 	return 1;
 }
 
-static void write_misc2(struct comedi_device *dev, uint16_t NewImage)
+static void write_misc2(struct comedi_device *dev, uint16_t new_image)
 {
 	debi_write(dev, LP_MISC1, MISC1_WENABLE); /* Enable writes to MISC2. */
-	debi_write(dev, LP_WRMISC2, NewImage);	/* Write new image to MISC2. */
+	debi_write(dev, LP_WRMISC2, new_image);	/* Write new image to MISC2. */
 	debi_write(dev, LP_MISC1, MISC1_WDISABLE); /* Disable writes to MISC2 */
 }
 
@@ -1958,7 +1958,7 @@ static uint16_t get_mode_b(struct comedi_device *dev, struct enc_private *k)
  * ClkPol, ClkEnab, IndexSrc, IndexPol, LoadSrc.
  */
 static void set_mode_a(struct comedi_device *dev, struct enc_private *k,
-		       uint16_t setup, uint16_t DisableIntSrc)
+		       uint16_t setup, uint16_t disable_int_src)
 {
 	struct s626_private *devpriv = dev->private;
 	uint16_t cra;
@@ -1976,8 +1976,8 @@ static void set_mode_a(struct comedi_device *dev, struct enc_private *k,
 	/* Clock enable is passed through. */
 	crb |= (setup & STDMSK_CLKENAB) << (CRBBIT_CLKENAB_A - STDBIT_CLKENAB);
 
-	/* Force IntSrc to Disabled if DisableIntSrc is asserted. */
-	if (!DisableIntSrc)
+	/* Force IntSrc to Disabled if disable_int_src is asserted. */
+	if (!disable_int_src)
 		cra |= ((setup & STDMSK_INTSRC) >> (STDBIT_INTSRC -
 						    CRABIT_INTSRC_A));
 
@@ -2024,7 +2024,7 @@ static void set_mode_a(struct comedi_device *dev, struct enc_private *k,
 	 * If IntSrc has been forced to Disabled, update the MISC2 interrupt
 	 * enable mask to indicate the counter interrupt is disabled.
 	 */
-	if (DisableIntSrc)
+	if (disable_int_src)
 		devpriv->counter_int_enabs &= ~k->my_event_bits[3];
 
 	/*
@@ -2036,7 +2036,7 @@ static void set_mode_a(struct comedi_device *dev, struct enc_private *k,
 }
 
 static void set_mode_b(struct comedi_device *dev, struct enc_private *k,
-		       uint16_t setup, uint16_t DisableIntSrc)
+		       uint16_t setup, uint16_t disable_int_src)
 {
 	struct s626_private *devpriv = dev->private;
 	uint16_t cra;
@@ -2054,8 +2054,8 @@ static void set_mode_b(struct comedi_device *dev, struct enc_private *k,
 	/* Preload trigger source is passed through. */
 	crb |= (setup & STDMSK_LOADSRC) >> (STDBIT_LOADSRC - CRBBIT_LOADSRC_B);
 
-	/* Force IntSrc to Disabled if DisableIntSrc is asserted. */
-	if (!DisableIntSrc)
+	/* Force IntSrc to Disabled if disable_int_src is asserted. */
+	if (!disable_int_src)
 		crb |= (setup & STDMSK_INTSRC) >>
 		       (STDBIT_INTSRC - CRBBIT_INTSRC_B);
 
@@ -2110,7 +2110,7 @@ static void set_mode_b(struct comedi_device *dev, struct enc_private *k,
 	 * If IntSrc has been forced to Disabled, update the MISC2 interrupt
 	 * enable mask to indicate the counter interrupt is disabled.
 	 */
-	if (DisableIntSrc)
+	if (disable_int_src)
 		devpriv->counter_int_enabs &= ~k->my_event_bits[3];
 
 	/*
@@ -2163,17 +2163,17 @@ static uint16_t get_latch_source(struct comedi_device *dev,
  * 2=OverflowA (B counters only), 3=disabled.
  */
 static void set_load_trig_a(struct comedi_device *dev, struct enc_private *k,
-			    uint16_t Trig)
+			    uint16_t trig)
 {
 	debi_replace(dev, k->my_cra, ~CRAMSK_LOADSRC_A,
-		     Trig << CRABIT_LOADSRC_A);
+		     trig << CRABIT_LOADSRC_A);
 }
 
 static void set_load_trig_b(struct comedi_device *dev, struct enc_private *k,
-			    uint16_t Trig)
+			    uint16_t trig)
 {
 	debi_replace(dev, k->my_crb, ~(CRBMSK_LOADSRC_B | CRBMSK_INTCTRL),
-		     Trig << CRBBIT_LOADSRC_B);
+		     trig << CRBBIT_LOADSRC_B);
 }
 
 static uint16_t get_load_trig_a(struct comedi_device *dev,
@@ -2190,11 +2190,11 @@ static uint16_t get_load_trig_b(struct comedi_device *dev,
 
 /*
  * Return/set counter interrupt source and clear any captured
- * index/overflow events.  IntSource: 0=Disabled, 1=OverflowOnly,
+ * index/overflow events.  int_source: 0=Disabled, 1=OverflowOnly,
  * 2=IndexOnly, 3=IndexAndOverflow.
  */
 static void set_int_src_a(struct comedi_device *dev, struct enc_private *k,
-			  uint16_t IntSource)
+			  uint16_t int_source)
 {
 	struct s626_private *devpriv = dev->private;
 
@@ -2204,16 +2204,16 @@ static void set_int_src_a(struct comedi_device *dev, struct enc_private *k,
 
 	/* Program counter interrupt source. */
 	debi_replace(dev, k->my_cra, ~CRAMSK_INTSRC_A,
-		     IntSource << CRABIT_INTSRC_A);
+		     int_source << CRABIT_INTSRC_A);
 
 	/* Update MISC2 interrupt enable mask. */
 	devpriv->counter_int_enabs =
 	    (devpriv->counter_int_enabs & ~k->my_event_bits[3]) |
-	    k->my_event_bits[IntSource];
+	    k->my_event_bits[int_source];
 }
 
 static void set_int_src_b(struct comedi_device *dev, struct enc_private *k,
-			  uint16_t IntSource)
+			  uint16_t int_source)
 {
 	struct s626_private *devpriv = dev->private;
 	uint16_t crb;
@@ -2228,12 +2228,12 @@ static void set_int_src_b(struct comedi_device *dev, struct enc_private *k,
 	/* Program counter interrupt source. */
 	debi_write(dev, k->my_crb,
 		   (uint16_t)((crb & ~CRBMSK_INTSRC_B) |
-			      (IntSource << CRBBIT_INTSRC_B)));
+			      (int_source << CRBBIT_INTSRC_B)));
 
 	/* Update MISC2 interrupt enable mask. */
 	devpriv->counter_int_enabs =
 		(devpriv->counter_int_enabs & ~k->my_event_bits[3]) |
-		k->my_event_bits[IntSource];
+		k->my_event_bits[int_source];
 }
 
 static uint16_t get_int_src_a(struct comedi_device *dev, struct enc_private *k)
@@ -2444,7 +2444,7 @@ static void counters_init(struct comedi_device *dev)
 {
 	int chan;
 	struct enc_private *k;
-	uint16_t Setup =
+	uint16_t setup =
 		(LOADSRC_INDX << BF_LOADSRC) |	/* Preload upon index. */
 		(INDXSRC_SOFT << BF_INDXSRC) |	/* Disable hardware index. */
 		(CLKSRC_COUNTER << BF_CLKSRC) |	/* Operating mode is counter. */
@@ -2458,7 +2458,7 @@ static void counters_init(struct comedi_device *dev)
 	 */
 	for (chan = 0; chan < S626_ENCODER_CHANNELS; chan++) {
 		k = &encpriv[chan];
-		k->set_mode(dev, k, Setup, TRUE);
+		k->set_mode(dev, k, setup, TRUE);
 		k->set_int_src(dev, k, 0);
 		k->reset_cap_flags(dev, k);
 		k->set_enable(dev, k, CLKENAB_ALWAYS);
@@ -2490,7 +2490,7 @@ static int s626_allocate_dma_buffers(struct comedi_device *dev)
 static void s626_initialize(struct comedi_device *dev)
 {
 	struct s626_private *devpriv = dev->private;
-	dma_addr_t pPhysBuf;
+	dma_addr_t phys_buf;
 	uint16_t chan;
 	int i;
 
@@ -2580,19 +2580,19 @@ static void s626_initialize(struct comedi_device *dev)
 	 * a defined state after a PCI reset.
 	 */
 	{
-		uint8_t PollList;
-		uint16_t AdcData;
-		uint16_t StartVal;
+		uint8_t poll_list;
+		uint16_t adc_data;
+		uint16_t start_val;
 		uint16_t index;
 		unsigned int data[16];
 
 		/* Create a simple polling list for analog input channel 0 */
-		PollList = EOPL;
-		reset_adc(dev, &PollList);
+		poll_list = EOPL;
+		reset_adc(dev, &poll_list);
 
 		/* Get initial ADC value */
 		s626_ai_rinsn(dev, dev->subdevices, NULL, data);
-		StartVal = data[0];
+		start_val = data[0];
 
 		/*
 		 * VERSION 2.01 CHANGE: TIMEOUT ADDED TO PREVENT HANGED
@@ -2606,8 +2606,8 @@ static void s626_initialize(struct comedi_device *dev)
 		 */
 		for (index = 0; index < 500; index++) {
 			s626_ai_rinsn(dev, dev->subdevices, NULL, data);
-			AdcData = data[0];
-			if (AdcData != StartVal)
+			adc_data = data[0];
+			if (adc_data != start_val)
 				break;
 		}
 	}
@@ -2630,10 +2630,10 @@ static void s626_initialize(struct comedi_device *dev)
 	 * single DWORD will be transferred each time a DMA transfer is
 	 * enabled.
 	 */
-	pPhysBuf = devpriv->ana_buf.physical_base +
+	phys_buf = devpriv->ana_buf.physical_base +
 		   (DAC_WDMABUF_OS * sizeof(uint32_t));
-	writel((uint32_t)pPhysBuf, devpriv->mmio + P_BASEA2_OUT);
-	writel((uint32_t)(pPhysBuf + sizeof(uint32_t)),
+	writel((uint32_t)phys_buf, devpriv->mmio + P_BASEA2_OUT);
+	writel((uint32_t)(phys_buf + sizeof(uint32_t)),
 	       devpriv->mmio + P_PROTA2_OUT);
 
 	/*
-- 
cgit 


From 3a305a66bb11dca492701db9aa9a48de4e29193e Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:30 +0100
Subject: staging: comedi: s626: remove encpriv macro

The `encpriv` macro relies on a local variable `dev` (of type `struct
comedi_device *`) being set correctly.  By a convoluted path involving
the `private` data pointer of subdevice 5 (the encoder (counter)
subdevice), the macro always yields a pointer to the first element of
the static array `enc_private_data[]`.  That holds statically constant
data for each of 6 encoder channels.

Instead of using the `encpriv` macro, just access the array it points to
directly and get rid of the macro.  Don't bother initializing the
`private` member of the encoder subdevice any more.  Since
`enc_private_data[]` now has nothing to so with subdevice private data,
rename `enc_private_data[]` to `s626_enc_chan_info[]` and rename its
type from `struct enc_private` to `struct s626_enc_info`.  Since the
array contains unchanging, static information, declare it `const` and
declare all the variables that point to it `const`.

A forward declaration of `s626_enc_chan_info[]` has been added
temporarily and will be removed by a later patch.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 189 +++++++++++++++++++---------------
 1 file changed, 106 insertions(+), 83 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index e4340e3929f2..689e2e2b0b15 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -98,35 +98,39 @@ struct s626_private {
 };
 
 /* COUNTER OBJECT ------------------------------------------------ */
-struct enc_private {
+struct s626_enc_info {
 	/* Pointers to functions that differ for A and B counters: */
 	/* Return clock enable. */
-	uint16_t(*get_enable)(struct comedi_device *dev, struct enc_private *k);
+	uint16_t(*get_enable)(struct comedi_device *dev,
+			      const struct s626_enc_info *k);
 	/* Return interrupt source. */
 	uint16_t(*get_int_src)(struct comedi_device *dev,
-			       struct enc_private *k);
+			       const struct s626_enc_info *k);
 	/* Return preload trigger source. */
 	uint16_t(*get_load_trig)(struct comedi_device *dev,
-				 struct enc_private *k);
+				 const struct s626_enc_info *k);
 	/* Return standardized operating mode. */
-	uint16_t(*get_mode)(struct comedi_device *dev, struct enc_private *k);
+	uint16_t(*get_mode)(struct comedi_device *dev,
+			    const struct s626_enc_info *k);
 	/* Generate soft index strobe. */
-	void (*pulse_index)(struct comedi_device *dev, struct enc_private *k);
+	void (*pulse_index)(struct comedi_device *dev,
+			    const struct s626_enc_info *k);
 	/* Program clock enable. */
-	void (*set_enable)(struct comedi_device *dev, struct enc_private *k,
-			   uint16_t enab);
+	void (*set_enable)(struct comedi_device *dev,
+			   const struct s626_enc_info *k, uint16_t enab);
 	/* Program interrupt source. */
-	void (*set_int_src)(struct comedi_device *dev, struct enc_private *k,
-			    uint16_t int_source);
+	void (*set_int_src)(struct comedi_device *dev,
+			    const struct s626_enc_info *k, uint16_t int_source);
 	/* Program preload trigger source. */
-	void (*set_load_trig)(struct comedi_device *dev, struct enc_private *k,
-			      uint16_t trig);
+	void (*set_load_trig)(struct comedi_device *dev,
+			      const struct s626_enc_info *k, uint16_t trig);
 	/* Program standardized operating mode. */
-	void (*set_mode)(struct comedi_device *dev, struct enc_private *k,
-			 uint16_t setup, uint16_t disable_int_src);
+	void (*set_mode)(struct comedi_device *dev,
+			 const struct s626_enc_info *k, uint16_t setup,
+			 uint16_t disable_int_src);
 	/* Reset event capture flags. */
 	void (*reset_cap_flags)(struct comedi_device *dev,
-				struct enc_private *k);
+				const struct s626_enc_info *k);
 
 	uint16_t my_cra;	/* address of CRA register */
 	uint16_t my_crb;	/* address of CRB register */
@@ -135,7 +139,7 @@ struct enc_private {
 	uint16_t my_event_bits[4]; /* bit translations for IntSrc -->RDMISC2 */
 };
 
-#define encpriv ((struct enc_private *)(dev->subdevices+5)->private)
+static const struct s626_enc_info s626_enc_chan_info[];
 
 /* Counter overflow/index event flag masks for RDMISC2. */
 #define INDXMASK(C)	(1 << (((C) > 2) ? ((C) * 2 - 1) : ((C) * 2 +  4)))
@@ -610,7 +614,8 @@ static void load_trim_dacs(struct comedi_device *dev)
 /*
  * Read a counter's output latch.
  */
-static uint32_t read_latch(struct comedi_device *dev, struct enc_private *k)
+static uint32_t read_latch(struct comedi_device *dev,
+			   const struct s626_enc_info *k)
 {
 	uint32_t value;
 
@@ -629,8 +634,8 @@ static uint32_t read_latch(struct comedi_device *dev, struct enc_private *k)
  * access, 1: A index latches A, 2: B index latches B, 3: A overflow
  * latches B.
  */
-static void set_latch_source(struct comedi_device *dev, struct enc_private *k,
-			     uint16_t value)
+static void set_latch_source(struct comedi_device *dev,
+			     const struct s626_enc_info *k, uint16_t value)
 {
 	debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_LATCHSRC),
 		     value << CRBBIT_LATCHSRC);
@@ -639,7 +644,7 @@ static void set_latch_source(struct comedi_device *dev, struct enc_private *k,
 /*
  * Write value into counter preload register.
  */
-static void preload(struct comedi_device *dev, struct enc_private *k,
+static void preload(struct comedi_device *dev, const struct s626_enc_info *k,
 		    uint32_t value)
 {
 	debi_write(dev, k->my_latch_lsw, value);
@@ -740,7 +745,8 @@ static void handle_dio_interrupt(struct comedi_device *dev,
 			}
 
 			if (cmd->convert_src == TRIG_TIMER) {
-				struct enc_private *k = &encpriv[5];
+				const struct s626_enc_info *k =
+					&s626_enc_chan_info[5];
 
 				devpriv->ai_convert_count = cmd->chanlist_len;
 				k->set_enable(dev, k, CLKENAB_ALWAYS);
@@ -782,7 +788,7 @@ static void check_counter_interrupts(struct comedi_device *dev)
 	struct comedi_subdevice *s = dev->read_subdev;
 	struct comedi_async *async = s->async;
 	struct comedi_cmd *cmd = &async->cmd;
-	struct enc_private *k;
+	const struct s626_enc_info *k;
 	uint16_t irqbit;
 
 	/* read interrupt type */
@@ -790,31 +796,31 @@ static void check_counter_interrupts(struct comedi_device *dev)
 
 	/* check interrupt on counters */
 	if (irqbit & IRQ_COINT1A) {
-		k = &encpriv[0];
+		k = &s626_enc_chan_info[0];
 
 		/* clear interrupt capture flag */
 		k->reset_cap_flags(dev, k);
 	}
 	if (irqbit & IRQ_COINT2A) {
-		k = &encpriv[1];
+		k = &s626_enc_chan_info[1];
 
 		/* clear interrupt capture flag */
 		k->reset_cap_flags(dev, k);
 	}
 	if (irqbit & IRQ_COINT3A) {
-		k = &encpriv[2];
+		k = &s626_enc_chan_info[2];
 
 		/* clear interrupt capture flag */
 		k->reset_cap_flags(dev, k);
 	}
 	if (irqbit & IRQ_COINT1B) {
-		k = &encpriv[3];
+		k = &s626_enc_chan_info[3];
 
 		/* clear interrupt capture flag */
 		k->reset_cap_flags(dev, k);
 	}
 	if (irqbit & IRQ_COINT2B) {
-		k = &encpriv[4];
+		k = &s626_enc_chan_info[4];
 
 		/* clear interrupt capture flag */
 		k->reset_cap_flags(dev, k);
@@ -831,7 +837,7 @@ static void check_counter_interrupts(struct comedi_device *dev)
 		}
 	}
 	if (irqbit & IRQ_COINT3B) {
-		k = &encpriv[5];
+		k = &s626_enc_chan_info[5];
 
 		/* clear interrupt capture flag */
 		k->reset_cap_flags(dev, k);
@@ -842,7 +848,7 @@ static void check_counter_interrupts(struct comedi_device *dev)
 		}
 
 		if (cmd->convert_src == TRIG_TIMER) {
-			k = &encpriv[4];
+			k = &s626_enc_chan_info[4];
 			devpriv->ai_convert_count = cmd->chanlist_len;
 			k->set_enable(dev, k, CLKENAB_ALWAYS);
 		}
@@ -1340,8 +1346,8 @@ static int s626_ns_to_timer(int *nanosec, int round_mode)
 	return divider - 1;
 }
 
-static void s626_timer_load(struct comedi_device *dev, struct enc_private *k,
-			    int tick)
+static void s626_timer_load(struct comedi_device *dev,
+			    const struct s626_enc_info *k, int tick)
 {
 	uint16_t setup =
 		(LOADSRC_INDX << BF_LOADSRC) |	/* Preload upon index. */
@@ -1382,7 +1388,7 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	struct s626_private *devpriv = dev->private;
 	uint8_t ppl[16];
 	struct comedi_cmd *cmd = &s->async->cmd;
-	struct enc_private *k;
+	const struct s626_enc_info *k;
 	int tick;
 
 	if (devpriv->ai_cmd_running) {
@@ -1425,7 +1431,7 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		 * set a counter to generate adc trigger at scan_begin_arg
 		 * interval
 		 */
-		k = &encpriv[5];
+		k = &s626_enc_chan_info[5];
 		tick = s626_ns_to_timer((int *)&cmd->scan_begin_arg,
 					cmd->flags & TRIG_ROUND_MASK);
 
@@ -1448,7 +1454,7 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		 * set a counter to generate adc trigger at convert_arg
 		 * interval
 		 */
-		k = &encpriv[4];
+		k = &s626_enc_chan_info[4];
 		tick = s626_ns_to_timer((int *)&cmd->convert_arg,
 					cmd->flags & TRIG_ROUND_MASK);
 
@@ -1740,7 +1746,8 @@ static int s626_enc_insn_config(struct comedi_device *dev,
 	/* uint32_t Preloadvalue;              //Counter initial value */
 	uint16_t value_latchsrc = LATCHSRC_AB_READ;
 	uint16_t enab = CLKENAB_ALWAYS;
-	struct enc_private *k = &encpriv[CR_CHAN(insn->chanspec)];
+	const struct s626_enc_info *k =
+		&s626_enc_chan_info[CR_CHAN(insn->chanspec)];
 
 	/* (data==NULL) ? (Preloadvalue=0) : (Preloadvalue=data[0]); */
 
@@ -1758,7 +1765,8 @@ static int s626_enc_insn_read(struct comedi_device *dev,
 			      struct comedi_insn *insn, unsigned int *data)
 {
 	int n;
-	struct enc_private *k = &encpriv[CR_CHAN(insn->chanspec)];
+	const struct s626_enc_info *k =
+		&s626_enc_chan_info[CR_CHAN(insn->chanspec)];
 
 	for (n = 0; n < insn->n; n++)
 		data[n] = read_latch(dev, k);
@@ -1770,7 +1778,8 @@ static int s626_enc_insn_write(struct comedi_device *dev,
 			       struct comedi_subdevice *s,
 			       struct comedi_insn *insn, unsigned int *data)
 {
-	struct enc_private *k = &encpriv[CR_CHAN(insn->chanspec)];
+	const struct s626_enc_info *k =
+		&s626_enc_chan_info[CR_CHAN(insn->chanspec)];
 
 	/* Set the preload register */
 	preload(dev, k, data[0]);
@@ -1818,13 +1827,15 @@ static void close_dma_b(struct comedi_device *dev, struct buffer_dma *pdma,
 /*
  * Reset a counter's index and overflow event capture flags.
  */
-static void reset_cap_flags_a(struct comedi_device *dev, struct enc_private *k)
+static void reset_cap_flags_a(struct comedi_device *dev,
+			      const struct s626_enc_info *k)
 {
 	debi_replace(dev, k->my_crb, ~CRBMSK_INTCTRL,
 		     CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A);
 }
 
-static void reset_cap_flags_b(struct comedi_device *dev, struct enc_private *k)
+static void reset_cap_flags_b(struct comedi_device *dev,
+			      const struct s626_enc_info *k)
 {
 	debi_replace(dev, k->my_crb, ~CRBMSK_INTCTRL,
 		     CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B);
@@ -1834,7 +1845,8 @@ static void reset_cap_flags_b(struct comedi_device *dev, struct enc_private *k)
  * Return counter setup in a format (COUNTER_SETUP) that is consistent
  * for both A and B counters.
  */
-static uint16_t get_mode_a(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_mode_a(struct comedi_device *dev,
+			   const struct s626_enc_info *k)
 {
 	uint16_t cra;
 	uint16_t crb;
@@ -1889,7 +1901,8 @@ static uint16_t get_mode_a(struct comedi_device *dev, struct enc_private *k)
 	return setup;
 }
 
-static uint16_t get_mode_b(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_mode_b(struct comedi_device *dev,
+			   const struct s626_enc_info *k)
 {
 	uint16_t cra;
 	uint16_t crb;
@@ -1957,7 +1970,7 @@ static uint16_t get_mode_b(struct comedi_device *dev, struct enc_private *k)
  * parameters are programmable (all other parms are ignored): ClkMult,
  * ClkPol, ClkEnab, IndexSrc, IndexPol, LoadSrc.
  */
-static void set_mode_a(struct comedi_device *dev, struct enc_private *k,
+static void set_mode_a(struct comedi_device *dev, const struct s626_enc_info *k,
 		       uint16_t setup, uint16_t disable_int_src)
 {
 	struct s626_private *devpriv = dev->private;
@@ -2035,7 +2048,7 @@ static void set_mode_a(struct comedi_device *dev, struct enc_private *k,
 	debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A), crb);
 }
 
-static void set_mode_b(struct comedi_device *dev, struct enc_private *k,
+static void set_mode_b(struct comedi_device *dev, const struct s626_enc_info *k,
 		       uint16_t setup, uint16_t disable_int_src)
 {
 	struct s626_private *devpriv = dev->private;
@@ -2125,33 +2138,35 @@ static void set_mode_b(struct comedi_device *dev, struct enc_private *k,
 /*
  * Return/set a counter's enable.  enab: 0=always enabled, 1=enabled by index.
  */
-static void set_enable_a(struct comedi_device *dev, struct enc_private *k,
-			 uint16_t enab)
+static void set_enable_a(struct comedi_device *dev,
+			 const struct s626_enc_info *k, uint16_t enab)
 {
 	debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A),
 		     enab << CRBBIT_CLKENAB_A);
 }
 
-static void set_enable_b(struct comedi_device *dev, struct enc_private *k,
-			 uint16_t enab)
+static void set_enable_b(struct comedi_device *dev, const
+			 struct s626_enc_info *k, uint16_t enab)
 {
 	debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_B),
 		     enab << CRBBIT_CLKENAB_B);
 }
 
-static uint16_t get_enable_a(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_enable_a(struct comedi_device *dev,
+			     const struct s626_enc_info *k)
 {
 	return (debi_read(dev, k->my_crb) >> CRBBIT_CLKENAB_A) & 1;
 }
 
-static uint16_t get_enable_b(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_enable_b(struct comedi_device *dev,
+			     const struct s626_enc_info *k)
 {
 	return (debi_read(dev, k->my_crb) >> CRBBIT_CLKENAB_B) & 1;
 }
 
 #ifdef unused
 static uint16_t get_latch_source(struct comedi_device *dev,
-				 struct enc_private *k)
+				 const struct s626_enc_info *k)
 {
 	return (debi_read(dev, k->my_crb) >> CRBBIT_LATCHSRC) & 3;
 }
@@ -2162,28 +2177,28 @@ static uint16_t get_latch_source(struct comedi_device *dev,
  * register into the counter.  0=ThisCntr_Index, 1=ThisCntr_Overflow,
  * 2=OverflowA (B counters only), 3=disabled.
  */
-static void set_load_trig_a(struct comedi_device *dev, struct enc_private *k,
-			    uint16_t trig)
+static void set_load_trig_a(struct comedi_device *dev,
+			    const struct s626_enc_info *k, uint16_t trig)
 {
 	debi_replace(dev, k->my_cra, ~CRAMSK_LOADSRC_A,
 		     trig << CRABIT_LOADSRC_A);
 }
 
-static void set_load_trig_b(struct comedi_device *dev, struct enc_private *k,
-			    uint16_t trig)
+static void set_load_trig_b(struct comedi_device *dev,
+			    const struct s626_enc_info *k, uint16_t trig)
 {
 	debi_replace(dev, k->my_crb, ~(CRBMSK_LOADSRC_B | CRBMSK_INTCTRL),
 		     trig << CRBBIT_LOADSRC_B);
 }
 
 static uint16_t get_load_trig_a(struct comedi_device *dev,
-				struct enc_private *k)
+				const struct s626_enc_info *k)
 {
 	return (debi_read(dev, k->my_cra) >> CRABIT_LOADSRC_A) & 3;
 }
 
 static uint16_t get_load_trig_b(struct comedi_device *dev,
-				struct enc_private *k)
+				const struct s626_enc_info *k)
 {
 	return (debi_read(dev, k->my_crb) >> CRBBIT_LOADSRC_B) & 3;
 }
@@ -2193,8 +2208,8 @@ static uint16_t get_load_trig_b(struct comedi_device *dev,
  * index/overflow events.  int_source: 0=Disabled, 1=OverflowOnly,
  * 2=IndexOnly, 3=IndexAndOverflow.
  */
-static void set_int_src_a(struct comedi_device *dev, struct enc_private *k,
-			  uint16_t int_source)
+static void set_int_src_a(struct comedi_device *dev,
+			  const struct s626_enc_info *k, uint16_t int_source)
 {
 	struct s626_private *devpriv = dev->private;
 
@@ -2212,8 +2227,8 @@ static void set_int_src_a(struct comedi_device *dev, struct enc_private *k,
 	    k->my_event_bits[int_source];
 }
 
-static void set_int_src_b(struct comedi_device *dev, struct enc_private *k,
-			  uint16_t int_source)
+static void set_int_src_b(struct comedi_device *dev,
+			  const struct s626_enc_info *k, uint16_t int_source)
 {
 	struct s626_private *devpriv = dev->private;
 	uint16_t crb;
@@ -2236,12 +2251,14 @@ static void set_int_src_b(struct comedi_device *dev, struct enc_private *k,
 		k->my_event_bits[int_source];
 }
 
-static uint16_t get_int_src_a(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_int_src_a(struct comedi_device *dev,
+			      const struct s626_enc_info *k)
 {
 	return (debi_read(dev, k->my_cra) >> CRABIT_INTSRC_A) & 3;
 }
 
-static uint16_t get_int_src_b(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_int_src_b(struct comedi_device *dev,
+			      const struct s626_enc_info *k)
 {
 	return (debi_read(dev, k->my_crb) >> CRBBIT_INTSRC_B) & 3;
 }
@@ -2250,14 +2267,15 @@ static uint16_t get_int_src_b(struct comedi_device *dev, struct enc_private *k)
 /*
  * Return/set the clock multiplier.
  */
-static void set_clk_mult(struct comedi_device *dev, struct enc_private *k,
-			 uint16_t value)
+static void set_clk_mult(struct comedi_device *dev,
+			 const struct s626_enc_info *k, uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKMULT) |
 			    (value << STDBIT_CLKMULT)), FALSE);
 }
 
-static uint16_t get_clk_mult(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_clk_mult(struct comedi_device *dev,
+			     const struct s626_enc_info *k)
 {
 	return (k->get_mode(dev, k) >> STDBIT_CLKMULT) & 3;
 }
@@ -2265,14 +2283,15 @@ static uint16_t get_clk_mult(struct comedi_device *dev, struct enc_private *k)
 /*
  * Return/set the clock polarity.
  */
-static void set_clk_pol(struct comedi_device *dev, struct enc_private *k,
-			uint16_t value)
+static void set_clk_pol(struct comedi_device *dev,
+			const struct s626_enc_info *k, uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKPOL) |
 			    (value << STDBIT_CLKPOL)), FALSE);
 }
 
-static uint16_t get_clk_pol(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_clk_pol(struct comedi_device *dev,
+			    const struct s626_enc_info *k)
 {
 	return (k->get_mode(dev, k) >> STDBIT_CLKPOL) & 1;
 }
@@ -2280,14 +2299,15 @@ static uint16_t get_clk_pol(struct comedi_device *dev, struct enc_private *k)
 /*
  * Return/set the clock source.
  */
-static void set_clk_src(struct comedi_device *dev, struct enc_private *k,
-			uint16_t value)
+static void set_clk_src(struct comedi_device *dev,
+			const struct s626_enc_info *k, uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKSRC) |
 			    (value << STDBIT_CLKSRC)), FALSE);
 }
 
-static uint16_t get_clk_src(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_clk_src(struct comedi_device *dev,
+			    const struct s626_enc_info *k)
 {
 	return (k->get_mode(dev, k) >> STDBIT_CLKSRC) & 3;
 }
@@ -2295,14 +2315,15 @@ static uint16_t get_clk_src(struct comedi_device *dev, struct enc_private *k)
 /*
  * Return/set the index polarity.
  */
-static void set_index_pol(struct comedi_device *dev, struct enc_private *k,
-			  uint16_t value)
+static void set_index_pol(struct comedi_device *dev,
+			  const struct s626_enc_info *k, uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_INDXPOL) |
 			    ((value != 0) << STDBIT_INDXPOL)), FALSE);
 }
 
-static uint16_t get_index_pol(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_index_pol(struct comedi_device *dev,
+			      const struct s626_enc_info *k)
 {
 	return (k->get_mode(dev, k) >> STDBIT_INDXPOL) & 1;
 }
@@ -2310,14 +2331,15 @@ static uint16_t get_index_pol(struct comedi_device *dev, struct enc_private *k)
 /*
  * Return/set the index source.
  */
-static void set_index_src(struct comedi_device *dev, struct enc_private *k,
-			  uint16_t value)
+static void set_index_src(struct comedi_device *dev,
+			  const struct s626_enc_info *k, uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_INDXSRC) |
 			    ((value != 0) << STDBIT_INDXSRC)), FALSE);
 }
 
-static uint16_t get_index_src(struct comedi_device *dev, struct enc_private *k)
+static uint16_t get_index_src(struct comedi_device *dev,
+			      const struct s626_enc_info *k)
 {
 	return (k->get_mode(dev, k) >> STDBIT_INDXSRC) & 1;
 }
@@ -2326,7 +2348,8 @@ static uint16_t get_index_src(struct comedi_device *dev, struct enc_private *k)
 /*
  * Generate an index pulse.
  */
-static void pulse_index_a(struct comedi_device *dev, struct enc_private *k)
+static void pulse_index_a(struct comedi_device *dev,
+			  const struct s626_enc_info *k)
 {
 	uint16_t cra;
 
@@ -2336,7 +2359,8 @@ static void pulse_index_a(struct comedi_device *dev, struct enc_private *k)
 	debi_write(dev, k->my_cra, cra);
 }
 
-static void pulse_index_b(struct comedi_device *dev, struct enc_private *k)
+static void pulse_index_b(struct comedi_device *dev,
+			  const struct s626_enc_info *k)
 {
 	uint16_t crb;
 
@@ -2346,7 +2370,7 @@ static void pulse_index_b(struct comedi_device *dev, struct enc_private *k)
 	debi_write(dev, k->my_crb, crb);
 }
 
-static struct enc_private enc_private_data[] = {
+static const struct s626_enc_info s626_enc_chan_info[] = {
 	{
 		.get_enable		= get_enable_a,
 		.get_int_src		= get_int_src_a,
@@ -2443,7 +2467,7 @@ static struct enc_private enc_private_data[] = {
 static void counters_init(struct comedi_device *dev)
 {
 	int chan;
-	struct enc_private *k;
+	const struct s626_enc_info *k;
 	uint16_t setup =
 		(LOADSRC_INDX << BF_LOADSRC) |	/* Preload upon index. */
 		(INDXSRC_SOFT << BF_INDXSRC) |	/* Disable hardware index. */
@@ -2457,7 +2481,7 @@ static void counters_init(struct comedi_device *dev)
 	 * Disable all counter interrupts and clear any captured counter events.
 	 */
 	for (chan = 0; chan < S626_ENCODER_CHANNELS; chan++) {
-		k = &encpriv[chan];
+		k = &s626_enc_chan_info[chan];
 		k->set_mode(dev, k, setup, TRUE);
 		k->set_int_src(dev, k, 0);
 		k->reset_cap_flags(dev, k);
@@ -2832,7 +2856,6 @@ static int s626_auto_attach(struct comedi_device *dev,
 	s->subdev_flags	= SDF_WRITABLE | SDF_READABLE | SDF_LSAMPL;
 	s->n_chan	= S626_ENCODER_CHANNELS;
 	s->maxdata	= 0xffffff;
-	s->private	= enc_private_data;
 	s->range_table	= &range_unknown;
 	s->insn_config	= s626_enc_insn_config;
 	s->insn_read	= s626_enc_insn_read;
-- 
cgit 


From 010be96fb611cf4b697dc6990e4d8dc83f0f2c83 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:31 +0100
Subject: staging: comedi: s626: move encoder functions part 1

Move some functions to help avoid the forward declaration of
`s626_enc_chan_info[]`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 284 +++++++++++++++++-----------------
 1 file changed, 142 insertions(+), 142 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 689e2e2b0b15..17a0cd7a7786 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -651,6 +651,148 @@ static void preload(struct comedi_device *dev, const struct s626_enc_info *k,
 	debi_write(dev, k->my_latch_lsw + 2, value >> 16);
 }
 
+/* ******  PRIVATE COUNTER FUNCTIONS ****** */
+
+/*
+ * Reset a counter's index and overflow event capture flags.
+ */
+static void reset_cap_flags_a(struct comedi_device *dev,
+			      const struct s626_enc_info *k)
+{
+	debi_replace(dev, k->my_crb, ~CRBMSK_INTCTRL,
+		     CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A);
+}
+
+static void reset_cap_flags_b(struct comedi_device *dev,
+			      const struct s626_enc_info *k)
+{
+	debi_replace(dev, k->my_crb, ~CRBMSK_INTCTRL,
+		     CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B);
+}
+
+/*
+ * Return counter setup in a format (COUNTER_SETUP) that is consistent
+ * for both A and B counters.
+ */
+static uint16_t get_mode_a(struct comedi_device *dev,
+			   const struct s626_enc_info *k)
+{
+	uint16_t cra;
+	uint16_t crb;
+	uint16_t setup;
+
+	/* Fetch CRA and CRB register images. */
+	cra = debi_read(dev, k->my_cra);
+	crb = debi_read(dev, k->my_crb);
+
+	/*
+	 * Populate the standardized counter setup bit fields.
+	 * Note: IndexSrc is restricted to ENC_X or IndxPol.
+	 */
+	setup = (cra & STDMSK_LOADSRC) |	/* LoadSrc  = LoadSrcA. */
+		((crb << (STDBIT_LATCHSRC - CRBBIT_LATCHSRC)) &
+		 STDMSK_LATCHSRC) |		/* LatchSrc = LatchSrcA. */
+		((cra << (STDBIT_INTSRC - CRABIT_INTSRC_A)) &
+		 STDMSK_INTSRC) |		/* IntSrc   = IntSrcA. */
+		((cra << (STDBIT_INDXSRC - (CRABIT_INDXSRC_A + 1))) &
+		 STDMSK_INDXSRC) |		/* IndxSrc  = IndxSrcA<1>. */
+		((cra >> (CRABIT_INDXPOL_A - STDBIT_INDXPOL)) &
+		 STDMSK_INDXPOL) |		/* IndxPol  = IndxPolA. */
+		((crb >> (CRBBIT_CLKENAB_A - STDBIT_CLKENAB)) &
+		 STDMSK_CLKENAB);		/* ClkEnab  = ClkEnabA. */
+
+	/* Adjust mode-dependent parameters. */
+	if (cra & (2 << CRABIT_CLKSRC_A)) {
+		/* Timer mode (ClkSrcA<1> == 1): */
+		/* Indicate Timer mode. */
+		setup |= CLKSRC_TIMER << STDBIT_CLKSRC;
+		/* Set ClkPol to indicate count direction (ClkSrcA<0>). */
+		setup |= (cra << (STDBIT_CLKPOL - CRABIT_CLKSRC_A)) &
+			 STDMSK_CLKPOL;
+		/* ClkMult must be 1x in Timer mode. */
+		setup |= MULT_X1 << STDBIT_CLKMULT;
+	} else {
+		/* Counter mode (ClkSrcA<1> == 0): */
+		/* Indicate Counter mode. */
+		setup |= CLKSRC_COUNTER << STDBIT_CLKSRC;
+		/* Pass through ClkPol. */
+		setup |= (cra >> (CRABIT_CLKPOL_A - STDBIT_CLKPOL)) &
+			 STDMSK_CLKPOL;
+		/* Force ClkMult to 1x if not legal, else pass through. */
+		if ((cra & CRAMSK_CLKMULT_A) == (MULT_X0 << CRABIT_CLKMULT_A))
+			setup |= MULT_X1 << STDBIT_CLKMULT;
+		else
+			setup |= (cra >> (CRABIT_CLKMULT_A - STDBIT_CLKMULT)) &
+				 STDMSK_CLKMULT;
+	}
+
+	/* Return adjusted counter setup. */
+	return setup;
+}
+
+static uint16_t get_mode_b(struct comedi_device *dev,
+			   const struct s626_enc_info *k)
+{
+	uint16_t cra;
+	uint16_t crb;
+	uint16_t setup;
+
+	/* Fetch CRA and CRB register images. */
+	cra = debi_read(dev, k->my_cra);
+	crb = debi_read(dev, k->my_crb);
+
+	/*
+	 * Populate the standardized counter setup bit fields.
+	 * Note: IndexSrc is restricted to ENC_X or IndxPol.
+	 */
+	setup = ((crb << (STDBIT_INTSRC - CRBBIT_INTSRC_B)) &
+		 STDMSK_INTSRC) |		/* IntSrc   = IntSrcB. */
+		((crb << (STDBIT_LATCHSRC - CRBBIT_LATCHSRC)) &
+		 STDMSK_LATCHSRC) |		/* LatchSrc = LatchSrcB. */
+		((crb << (STDBIT_LOADSRC - CRBBIT_LOADSRC_B)) &
+		 STDMSK_LOADSRC) |		/* LoadSrc  = LoadSrcB. */
+		((crb << (STDBIT_INDXPOL - CRBBIT_INDXPOL_B)) &
+		 STDMSK_INDXPOL) |		/* IndxPol  = IndxPolB. */
+		((crb >> (CRBBIT_CLKENAB_B - STDBIT_CLKENAB)) &
+		 STDMSK_CLKENAB) |		/* ClkEnab  = ClkEnabB. */
+		((cra >> ((CRABIT_INDXSRC_B + 1) - STDBIT_INDXSRC)) &
+		 STDMSK_INDXSRC);		/* IndxSrc  = IndxSrcB<1>. */
+
+	/* Adjust mode-dependent parameters. */
+	if ((crb & CRBMSK_CLKMULT_B) == (MULT_X0 << CRBBIT_CLKMULT_B)) {
+		/* Extender mode (ClkMultB == MULT_X0): */
+		/* Indicate Extender mode. */
+		setup |= CLKSRC_EXTENDER << STDBIT_CLKSRC;
+		/* Indicate multiplier is 1x. */
+		setup |= MULT_X1 << STDBIT_CLKMULT;
+		/* Set ClkPol equal to Timer count direction (ClkSrcB<0>). */
+		setup |= (cra >> (CRABIT_CLKSRC_B - STDBIT_CLKPOL)) &
+			 STDMSK_CLKPOL;
+	} else if (cra & (2 << CRABIT_CLKSRC_B)) {
+		/* Timer mode (ClkSrcB<1> == 1): */
+		/* Indicate Timer mode. */
+		setup |= CLKSRC_TIMER << STDBIT_CLKSRC;
+		/* Indicate multiplier is 1x. */
+		setup |= MULT_X1 << STDBIT_CLKMULT;
+		/* Set ClkPol equal to Timer count direction (ClkSrcB<0>). */
+		setup |= (cra >> (CRABIT_CLKSRC_B - STDBIT_CLKPOL)) &
+			 STDMSK_CLKPOL;
+	} else {
+		/* If Counter mode (ClkSrcB<1> == 0): */
+		/* Indicate Timer mode. */
+		setup |= CLKSRC_COUNTER << STDBIT_CLKSRC;
+		/* Clock multiplier is passed through. */
+		setup |= (crb >> (CRBBIT_CLKMULT_B - STDBIT_CLKMULT)) &
+			 STDMSK_CLKMULT;
+		/* Clock polarity is passed through. */
+		setup |= (crb << (STDBIT_CLKPOL - CRBBIT_CLKPOL_B)) &
+			 STDMSK_CLKPOL;
+	}
+
+	/* Return adjusted counter setup. */
+	return setup;
+}
+
 static unsigned int s626_ai_reg_to_uint(int data)
 {
 	unsigned int tempdata;
@@ -1822,148 +1964,6 @@ static void close_dma_b(struct comedi_device *dev, struct buffer_dma *pdma,
 	}
 }
 
-/* ******  PRIVATE COUNTER FUNCTIONS ****** */
-
-/*
- * Reset a counter's index and overflow event capture flags.
- */
-static void reset_cap_flags_a(struct comedi_device *dev,
-			      const struct s626_enc_info *k)
-{
-	debi_replace(dev, k->my_crb, ~CRBMSK_INTCTRL,
-		     CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A);
-}
-
-static void reset_cap_flags_b(struct comedi_device *dev,
-			      const struct s626_enc_info *k)
-{
-	debi_replace(dev, k->my_crb, ~CRBMSK_INTCTRL,
-		     CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B);
-}
-
-/*
- * Return counter setup in a format (COUNTER_SETUP) that is consistent
- * for both A and B counters.
- */
-static uint16_t get_mode_a(struct comedi_device *dev,
-			   const struct s626_enc_info *k)
-{
-	uint16_t cra;
-	uint16_t crb;
-	uint16_t setup;
-
-	/* Fetch CRA and CRB register images. */
-	cra = debi_read(dev, k->my_cra);
-	crb = debi_read(dev, k->my_crb);
-
-	/*
-	 * Populate the standardized counter setup bit fields.
-	 * Note: IndexSrc is restricted to ENC_X or IndxPol.
-	 */
-	setup = (cra & STDMSK_LOADSRC) |	/* LoadSrc  = LoadSrcA. */
-		((crb << (STDBIT_LATCHSRC - CRBBIT_LATCHSRC)) &
-		 STDMSK_LATCHSRC) |		/* LatchSrc = LatchSrcA. */
-		((cra << (STDBIT_INTSRC - CRABIT_INTSRC_A)) &
-		 STDMSK_INTSRC) |		/* IntSrc   = IntSrcA. */
-		((cra << (STDBIT_INDXSRC - (CRABIT_INDXSRC_A + 1))) &
-		 STDMSK_INDXSRC) |		/* IndxSrc  = IndxSrcA<1>. */
-		((cra >> (CRABIT_INDXPOL_A - STDBIT_INDXPOL)) &
-		 STDMSK_INDXPOL) |		/* IndxPol  = IndxPolA. */
-		((crb >> (CRBBIT_CLKENAB_A - STDBIT_CLKENAB)) &
-		 STDMSK_CLKENAB);		/* ClkEnab  = ClkEnabA. */
-
-	/* Adjust mode-dependent parameters. */
-	if (cra & (2 << CRABIT_CLKSRC_A)) {
-		/* Timer mode (ClkSrcA<1> == 1): */
-		/* Indicate Timer mode. */
-		setup |= CLKSRC_TIMER << STDBIT_CLKSRC;
-		/* Set ClkPol to indicate count direction (ClkSrcA<0>). */
-		setup |= (cra << (STDBIT_CLKPOL - CRABIT_CLKSRC_A)) &
-			 STDMSK_CLKPOL;
-		/* ClkMult must be 1x in Timer mode. */
-		setup |= MULT_X1 << STDBIT_CLKMULT;
-	} else {
-		/* Counter mode (ClkSrcA<1> == 0): */
-		/* Indicate Counter mode. */
-		setup |= CLKSRC_COUNTER << STDBIT_CLKSRC;
-		/* Pass through ClkPol. */
-		setup |= (cra >> (CRABIT_CLKPOL_A - STDBIT_CLKPOL)) &
-			 STDMSK_CLKPOL;
-		/* Force ClkMult to 1x if not legal, else pass through. */
-		if ((cra & CRAMSK_CLKMULT_A) == (MULT_X0 << CRABIT_CLKMULT_A))
-			setup |= MULT_X1 << STDBIT_CLKMULT;
-		else
-			setup |= (cra >> (CRABIT_CLKMULT_A - STDBIT_CLKMULT)) &
-				 STDMSK_CLKMULT;
-	}
-
-	/* Return adjusted counter setup. */
-	return setup;
-}
-
-static uint16_t get_mode_b(struct comedi_device *dev,
-			   const struct s626_enc_info *k)
-{
-	uint16_t cra;
-	uint16_t crb;
-	uint16_t setup;
-
-	/* Fetch CRA and CRB register images. */
-	cra = debi_read(dev, k->my_cra);
-	crb = debi_read(dev, k->my_crb);
-
-	/*
-	 * Populate the standardized counter setup bit fields.
-	 * Note: IndexSrc is restricted to ENC_X or IndxPol.
-	 */
-	setup = ((crb << (STDBIT_INTSRC - CRBBIT_INTSRC_B)) &
-		 STDMSK_INTSRC) |		/* IntSrc   = IntSrcB. */
-		((crb << (STDBIT_LATCHSRC - CRBBIT_LATCHSRC)) &
-		 STDMSK_LATCHSRC) |		/* LatchSrc = LatchSrcB. */
-		((crb << (STDBIT_LOADSRC - CRBBIT_LOADSRC_B)) &
-		 STDMSK_LOADSRC) |		/* LoadSrc  = LoadSrcB. */
-		((crb << (STDBIT_INDXPOL - CRBBIT_INDXPOL_B)) &
-		 STDMSK_INDXPOL) |		/* IndxPol  = IndxPolB. */
-		((crb >> (CRBBIT_CLKENAB_B - STDBIT_CLKENAB)) &
-		 STDMSK_CLKENAB) |		/* ClkEnab  = ClkEnabB. */
-		((cra >> ((CRABIT_INDXSRC_B + 1) - STDBIT_INDXSRC)) &
-		 STDMSK_INDXSRC);		/* IndxSrc  = IndxSrcB<1>. */
-
-	/* Adjust mode-dependent parameters. */
-	if ((crb & CRBMSK_CLKMULT_B) == (MULT_X0 << CRBBIT_CLKMULT_B)) {
-		/* Extender mode (ClkMultB == MULT_X0): */
-		/* Indicate Extender mode. */
-		setup |= CLKSRC_EXTENDER << STDBIT_CLKSRC;
-		/* Indicate multiplier is 1x. */
-		setup |= MULT_X1 << STDBIT_CLKMULT;
-		/* Set ClkPol equal to Timer count direction (ClkSrcB<0>). */
-		setup |= (cra >> (CRABIT_CLKSRC_B - STDBIT_CLKPOL)) &
-			 STDMSK_CLKPOL;
-	} else if (cra & (2 << CRABIT_CLKSRC_B)) {
-		/* Timer mode (ClkSrcB<1> == 1): */
-		/* Indicate Timer mode. */
-		setup |= CLKSRC_TIMER << STDBIT_CLKSRC;
-		/* Indicate multiplier is 1x. */
-		setup |= MULT_X1 << STDBIT_CLKMULT;
-		/* Set ClkPol equal to Timer count direction (ClkSrcB<0>). */
-		setup |= (cra >> (CRABIT_CLKSRC_B - STDBIT_CLKPOL)) &
-			 STDMSK_CLKPOL;
-	} else {
-		/* If Counter mode (ClkSrcB<1> == 0): */
-		/* Indicate Timer mode. */
-		setup |= CLKSRC_COUNTER << STDBIT_CLKSRC;
-		/* Clock multiplier is passed through. */
-		setup |= (crb >> (CRBBIT_CLKMULT_B - STDBIT_CLKMULT)) &
-			 STDMSK_CLKMULT;
-		/* Clock polarity is passed through. */
-		setup |= (crb << (STDBIT_CLKPOL - CRBBIT_CLKPOL_B)) &
-			 STDMSK_CLKPOL;
-	}
-
-	/* Return adjusted counter setup. */
-	return setup;
-}
-
 /*
  * Set the operating mode for the specified counter.  The setup
  * parameter is treated as a COUNTER_SETUP data type.  The following
-- 
cgit 


From 17afeac2fd33d6e438e43736659f5e60ec4857a9 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:32 +0100
Subject: staging: comedi: s626: move encoder functions part 2

Move some more functions to help avoid the forward declaration of
`s626_enc_chan_info[]`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 478 +++++++++++++++++-----------------
 1 file changed, 239 insertions(+), 239 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 17a0cd7a7786..1af053619189 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -793,6 +793,245 @@ static uint16_t get_mode_b(struct comedi_device *dev,
 	return setup;
 }
 
+/*
+ * Set the operating mode for the specified counter.  The setup
+ * parameter is treated as a COUNTER_SETUP data type.  The following
+ * parameters are programmable (all other parms are ignored): ClkMult,
+ * ClkPol, ClkEnab, IndexSrc, IndexPol, LoadSrc.
+ */
+static void set_mode_a(struct comedi_device *dev, const struct s626_enc_info *k,
+		       uint16_t setup, uint16_t disable_int_src)
+{
+	struct s626_private *devpriv = dev->private;
+	uint16_t cra;
+	uint16_t crb;
+
+	/* Initialize CRA and CRB images. */
+	/* Preload trigger is passed through. */
+	cra = setup & CRAMSK_LOADSRC_A;
+	/* IndexSrc is restricted to ENC_X or IndxPol. */
+	cra |= ((setup & STDMSK_INDXSRC) >>
+		(STDBIT_INDXSRC - (CRABIT_INDXSRC_A + 1)));
+
+	/* Reset any pending CounterA event captures. */
+	crb = CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A;
+	/* Clock enable is passed through. */
+	crb |= (setup & STDMSK_CLKENAB) << (CRBBIT_CLKENAB_A - STDBIT_CLKENAB);
+
+	/* Force IntSrc to Disabled if disable_int_src is asserted. */
+	if (!disable_int_src)
+		cra |= ((setup & STDMSK_INTSRC) >> (STDBIT_INTSRC -
+						    CRABIT_INTSRC_A));
+
+	/* Populate all mode-dependent attributes of CRA & CRB images. */
+	switch ((setup & STDMSK_CLKSRC) >> STDBIT_CLKSRC) {
+	case CLKSRC_EXTENDER:	/* Extender Mode: Force to Timer mode
+				 * (Extender valid only for B counters). */
+		/* Fall through to case CLKSRC_TIMER: */
+	case CLKSRC_TIMER:	/* Timer Mode: */
+		/* ClkSrcA<1> selects system clock */
+		cra |= 2 << CRABIT_CLKSRC_A;
+		/* Count direction (ClkSrcA<0>) obtained from ClkPol. */
+		cra |= (setup & STDMSK_CLKPOL) >>
+		       (STDBIT_CLKPOL - CRABIT_CLKSRC_A);
+		/* ClkPolA behaves as always-on clock enable. */
+		cra |= 1 << CRABIT_CLKPOL_A;
+		/* ClkMult must be 1x. */
+		cra |= MULT_X1 << CRABIT_CLKMULT_A;
+		break;
+	default:		/* Counter Mode: */
+		/* Select ENC_C and ENC_D as clock/direction inputs. */
+		cra |= CLKSRC_COUNTER;
+		/* Clock polarity is passed through. */
+		cra |= (setup & STDMSK_CLKPOL) <<
+		       (CRABIT_CLKPOL_A - STDBIT_CLKPOL);
+		/* Force multiplier to x1 if not legal, else pass through. */
+		if ((setup & STDMSK_CLKMULT) == (MULT_X0 << STDBIT_CLKMULT))
+			cra |= MULT_X1 << CRABIT_CLKMULT_A;
+		else
+			cra |= (setup & STDMSK_CLKMULT) <<
+			       (CRABIT_CLKMULT_A - STDBIT_CLKMULT);
+		break;
+	}
+
+	/*
+	 * Force positive index polarity if IndxSrc is software-driven only,
+	 * otherwise pass it through.
+	 */
+	if (~setup & STDMSK_INDXSRC)
+		cra |= (setup & STDMSK_INDXPOL) <<
+		       (CRABIT_INDXPOL_A - STDBIT_INDXPOL);
+
+	/*
+	 * If IntSrc has been forced to Disabled, update the MISC2 interrupt
+	 * enable mask to indicate the counter interrupt is disabled.
+	 */
+	if (disable_int_src)
+		devpriv->counter_int_enabs &= ~k->my_event_bits[3];
+
+	/*
+	 * While retaining CounterB and LatchSrc configurations, program the
+	 * new counter operating mode.
+	 */
+	debi_replace(dev, k->my_cra, CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B, cra);
+	debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A), crb);
+}
+
+static void set_mode_b(struct comedi_device *dev, const struct s626_enc_info *k,
+		       uint16_t setup, uint16_t disable_int_src)
+{
+	struct s626_private *devpriv = dev->private;
+	uint16_t cra;
+	uint16_t crb;
+
+	/* Initialize CRA and CRB images. */
+	/* IndexSrc field is restricted to ENC_X or IndxPol. */
+	cra = (setup & STDMSK_INDXSRC) <<
+	      (CRABIT_INDXSRC_B + 1 - STDBIT_INDXSRC);
+
+	/* Reset event captures and disable interrupts. */
+	crb = CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B;
+	/* Clock enable is passed through. */
+	crb |= (setup & STDMSK_CLKENAB) << (CRBBIT_CLKENAB_B - STDBIT_CLKENAB);
+	/* Preload trigger source is passed through. */
+	crb |= (setup & STDMSK_LOADSRC) >> (STDBIT_LOADSRC - CRBBIT_LOADSRC_B);
+
+	/* Force IntSrc to Disabled if disable_int_src is asserted. */
+	if (!disable_int_src)
+		crb |= (setup & STDMSK_INTSRC) >>
+		       (STDBIT_INTSRC - CRBBIT_INTSRC_B);
+
+	/* Populate all mode-dependent attributes of CRA & CRB images. */
+	switch ((setup & STDMSK_CLKSRC) >> STDBIT_CLKSRC) {
+	case CLKSRC_TIMER:	/* Timer Mode: */
+		/* ClkSrcB<1> selects system clock */
+		cra |= 2 << CRABIT_CLKSRC_B;
+		/* with direction (ClkSrcB<0>) obtained from ClkPol. */
+		cra |= (setup & STDMSK_CLKPOL) <<
+		       (CRABIT_CLKSRC_B - STDBIT_CLKPOL);
+		/* ClkPolB behaves as always-on clock enable. */
+		crb |= 1 << CRBBIT_CLKPOL_B;
+		/* ClkMultB must be 1x. */
+		crb |= MULT_X1 << CRBBIT_CLKMULT_B;
+		break;
+	case CLKSRC_EXTENDER:	/* Extender Mode: */
+		/* ClkSrcB source is OverflowA (same as "timer") */
+		cra |= 2 << CRABIT_CLKSRC_B;
+		/* with direction obtained from ClkPol. */
+		cra |= (setup & STDMSK_CLKPOL) <<
+		       (CRABIT_CLKSRC_B - STDBIT_CLKPOL);
+		/* ClkPolB controls IndexB -- always set to active. */
+		crb |= 1 << CRBBIT_CLKPOL_B;
+		/* ClkMultB selects OverflowA as the clock source. */
+		crb |= MULT_X0 << CRBBIT_CLKMULT_B;
+		break;
+	default:		/* Counter Mode: */
+		/* Select ENC_C and ENC_D as clock/direction inputs. */
+		cra |= CLKSRC_COUNTER << CRABIT_CLKSRC_B;
+		/* ClkPol is passed through. */
+		crb |= (setup & STDMSK_CLKPOL) >>
+		       (STDBIT_CLKPOL - CRBBIT_CLKPOL_B);
+		/* Force ClkMult to x1 if not legal, otherwise pass through. */
+		if ((setup & STDMSK_CLKMULT) == (MULT_X0 << STDBIT_CLKMULT))
+			crb |= MULT_X1 << CRBBIT_CLKMULT_B;
+		else
+			crb |= (setup & STDMSK_CLKMULT) <<
+			       (CRBBIT_CLKMULT_B - STDBIT_CLKMULT);
+		break;
+	}
+
+	/*
+	 * Force positive index polarity if IndxSrc is software-driven only,
+	 * otherwise pass it through.
+	 */
+	if (~setup & STDMSK_INDXSRC)
+		crb |= (setup & STDMSK_INDXPOL) >>
+		       (STDBIT_INDXPOL - CRBBIT_INDXPOL_B);
+
+	/*
+	 * If IntSrc has been forced to Disabled, update the MISC2 interrupt
+	 * enable mask to indicate the counter interrupt is disabled.
+	 */
+	if (disable_int_src)
+		devpriv->counter_int_enabs &= ~k->my_event_bits[3];
+
+	/*
+	 * While retaining CounterA and LatchSrc configurations, program the
+	 * new counter operating mode.
+	 */
+	debi_replace(dev, k->my_cra, ~(CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B),
+		     cra);
+	debi_replace(dev, k->my_crb, CRBMSK_CLKENAB_A | CRBMSK_LATCHSRC, crb);
+}
+
+/*
+ * Return/set a counter's enable.  enab: 0=always enabled, 1=enabled by index.
+ */
+static void set_enable_a(struct comedi_device *dev,
+			 const struct s626_enc_info *k, uint16_t enab)
+{
+	debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A),
+		     enab << CRBBIT_CLKENAB_A);
+}
+
+static void set_enable_b(struct comedi_device *dev,
+			 const struct s626_enc_info *k, uint16_t enab)
+{
+	debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_B),
+		     enab << CRBBIT_CLKENAB_B);
+}
+
+static uint16_t get_enable_a(struct comedi_device *dev,
+			     const struct s626_enc_info *k)
+{
+	return (debi_read(dev, k->my_crb) >> CRBBIT_CLKENAB_A) & 1;
+}
+
+static uint16_t get_enable_b(struct comedi_device *dev,
+			     const struct s626_enc_info *k)
+{
+	return (debi_read(dev, k->my_crb) >> CRBBIT_CLKENAB_B) & 1;
+}
+
+#ifdef unused
+static uint16_t get_latch_source(struct comedi_device *dev,
+				 const struct s626_enc_info *k)
+{
+	return (debi_read(dev, k->my_crb) >> CRBBIT_LATCHSRC) & 3;
+}
+#endif
+
+/*
+ * Return/set the event that will trigger transfer of the preload
+ * register into the counter.  0=ThisCntr_Index, 1=ThisCntr_Overflow,
+ * 2=OverflowA (B counters only), 3=disabled.
+ */
+static void set_load_trig_a(struct comedi_device *dev,
+			    const struct s626_enc_info *k, uint16_t trig)
+{
+	debi_replace(dev, k->my_cra, ~CRAMSK_LOADSRC_A,
+		     trig << CRABIT_LOADSRC_A);
+}
+
+static void set_load_trig_b(struct comedi_device *dev,
+			    const struct s626_enc_info *k, uint16_t trig)
+{
+	debi_replace(dev, k->my_crb, ~(CRBMSK_LOADSRC_B | CRBMSK_INTCTRL),
+		     trig << CRBBIT_LOADSRC_B);
+}
+
+static uint16_t get_load_trig_a(struct comedi_device *dev,
+				const struct s626_enc_info *k)
+{
+	return (debi_read(dev, k->my_cra) >> CRABIT_LOADSRC_A) & 3;
+}
+
+static uint16_t get_load_trig_b(struct comedi_device *dev,
+				const struct s626_enc_info *k)
+{
+	return (debi_read(dev, k->my_crb) >> CRBBIT_LOADSRC_B) & 3;
+}
+
 static unsigned int s626_ai_reg_to_uint(int data)
 {
 	unsigned int tempdata;
@@ -1964,245 +2203,6 @@ static void close_dma_b(struct comedi_device *dev, struct buffer_dma *pdma,
 	}
 }
 
-/*
- * Set the operating mode for the specified counter.  The setup
- * parameter is treated as a COUNTER_SETUP data type.  The following
- * parameters are programmable (all other parms are ignored): ClkMult,
- * ClkPol, ClkEnab, IndexSrc, IndexPol, LoadSrc.
- */
-static void set_mode_a(struct comedi_device *dev, const struct s626_enc_info *k,
-		       uint16_t setup, uint16_t disable_int_src)
-{
-	struct s626_private *devpriv = dev->private;
-	uint16_t cra;
-	uint16_t crb;
-
-	/* Initialize CRA and CRB images. */
-	/* Preload trigger is passed through. */
-	cra = setup & CRAMSK_LOADSRC_A;
-	/* IndexSrc is restricted to ENC_X or IndxPol. */
-	cra |= ((setup & STDMSK_INDXSRC) >>
-		(STDBIT_INDXSRC - (CRABIT_INDXSRC_A + 1)));
-
-	/* Reset any pending CounterA event captures. */
-	crb = CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A;
-	/* Clock enable is passed through. */
-	crb |= (setup & STDMSK_CLKENAB) << (CRBBIT_CLKENAB_A - STDBIT_CLKENAB);
-
-	/* Force IntSrc to Disabled if disable_int_src is asserted. */
-	if (!disable_int_src)
-		cra |= ((setup & STDMSK_INTSRC) >> (STDBIT_INTSRC -
-						    CRABIT_INTSRC_A));
-
-	/* Populate all mode-dependent attributes of CRA & CRB images. */
-	switch ((setup & STDMSK_CLKSRC) >> STDBIT_CLKSRC) {
-	case CLKSRC_EXTENDER:	/* Extender Mode: Force to Timer mode
-				 * (Extender valid only for B counters). */
-		/* Fall through to case CLKSRC_TIMER: */
-	case CLKSRC_TIMER:	/* Timer Mode: */
-		/* ClkSrcA<1> selects system clock */
-		cra |= 2 << CRABIT_CLKSRC_A;
-		/* Count direction (ClkSrcA<0>) obtained from ClkPol. */
-		cra |= (setup & STDMSK_CLKPOL) >>
-		       (STDBIT_CLKPOL - CRABIT_CLKSRC_A);
-		/* ClkPolA behaves as always-on clock enable. */
-		cra |= 1 << CRABIT_CLKPOL_A;
-		/* ClkMult must be 1x. */
-		cra |= MULT_X1 << CRABIT_CLKMULT_A;
-		break;
-	default:		/* Counter Mode: */
-		/* Select ENC_C and ENC_D as clock/direction inputs. */
-		cra |= CLKSRC_COUNTER;
-		/* Clock polarity is passed through. */
-		cra |= (setup & STDMSK_CLKPOL) <<
-		       (CRABIT_CLKPOL_A - STDBIT_CLKPOL);
-		/* Force multiplier to x1 if not legal, else pass through. */
-		if ((setup & STDMSK_CLKMULT) == (MULT_X0 << STDBIT_CLKMULT))
-			cra |= MULT_X1 << CRABIT_CLKMULT_A;
-		else
-			cra |= (setup & STDMSK_CLKMULT) <<
-			       (CRABIT_CLKMULT_A - STDBIT_CLKMULT);
-		break;
-	}
-
-	/*
-	 * Force positive index polarity if IndxSrc is software-driven only,
-	 * otherwise pass it through.
-	 */
-	if (~setup & STDMSK_INDXSRC)
-		cra |= (setup & STDMSK_INDXPOL) <<
-		       (CRABIT_INDXPOL_A - STDBIT_INDXPOL);
-
-	/*
-	 * If IntSrc has been forced to Disabled, update the MISC2 interrupt
-	 * enable mask to indicate the counter interrupt is disabled.
-	 */
-	if (disable_int_src)
-		devpriv->counter_int_enabs &= ~k->my_event_bits[3];
-
-	/*
-	 * While retaining CounterB and LatchSrc configurations, program the
-	 * new counter operating mode.
-	 */
-	debi_replace(dev, k->my_cra, CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B, cra);
-	debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A), crb);
-}
-
-static void set_mode_b(struct comedi_device *dev, const struct s626_enc_info *k,
-		       uint16_t setup, uint16_t disable_int_src)
-{
-	struct s626_private *devpriv = dev->private;
-	uint16_t cra;
-	uint16_t crb;
-
-	/* Initialize CRA and CRB images. */
-	/* IndexSrc field is restricted to ENC_X or IndxPol. */
-	cra = (setup & STDMSK_INDXSRC) <<
-	      (CRABIT_INDXSRC_B + 1 - STDBIT_INDXSRC);
-
-	/* Reset event captures and disable interrupts. */
-	crb = CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B;
-	/* Clock enable is passed through. */
-	crb |= (setup & STDMSK_CLKENAB) << (CRBBIT_CLKENAB_B - STDBIT_CLKENAB);
-	/* Preload trigger source is passed through. */
-	crb |= (setup & STDMSK_LOADSRC) >> (STDBIT_LOADSRC - CRBBIT_LOADSRC_B);
-
-	/* Force IntSrc to Disabled if disable_int_src is asserted. */
-	if (!disable_int_src)
-		crb |= (setup & STDMSK_INTSRC) >>
-		       (STDBIT_INTSRC - CRBBIT_INTSRC_B);
-
-	/* Populate all mode-dependent attributes of CRA & CRB images. */
-	switch ((setup & STDMSK_CLKSRC) >> STDBIT_CLKSRC) {
-	case CLKSRC_TIMER:	/* Timer Mode: */
-		/* ClkSrcB<1> selects system clock */
-		cra |= 2 << CRABIT_CLKSRC_B;
-		/* with direction (ClkSrcB<0>) obtained from ClkPol. */
-		cra |= (setup & STDMSK_CLKPOL) <<
-		       (CRABIT_CLKSRC_B - STDBIT_CLKPOL);
-		/* ClkPolB behaves as always-on clock enable. */
-		crb |= 1 << CRBBIT_CLKPOL_B;
-		/* ClkMultB must be 1x. */
-		crb |= MULT_X1 << CRBBIT_CLKMULT_B;
-		break;
-	case CLKSRC_EXTENDER:	/* Extender Mode: */
-		/* ClkSrcB source is OverflowA (same as "timer") */
-		cra |= 2 << CRABIT_CLKSRC_B;
-		/* with direction obtained from ClkPol. */
-		cra |= (setup & STDMSK_CLKPOL) <<
-		       (CRABIT_CLKSRC_B - STDBIT_CLKPOL);
-		/* ClkPolB controls IndexB -- always set to active. */
-		crb |= 1 << CRBBIT_CLKPOL_B;
-		/* ClkMultB selects OverflowA as the clock source. */
-		crb |= MULT_X0 << CRBBIT_CLKMULT_B;
-		break;
-	default:		/* Counter Mode: */
-		/* Select ENC_C and ENC_D as clock/direction inputs. */
-		cra |= CLKSRC_COUNTER << CRABIT_CLKSRC_B;
-		/* ClkPol is passed through. */
-		crb |= (setup & STDMSK_CLKPOL) >>
-		       (STDBIT_CLKPOL - CRBBIT_CLKPOL_B);
-		/* Force ClkMult to x1 if not legal, otherwise pass through. */
-		if ((setup & STDMSK_CLKMULT) == (MULT_X0 << STDBIT_CLKMULT))
-			crb |= MULT_X1 << CRBBIT_CLKMULT_B;
-		else
-			crb |= (setup & STDMSK_CLKMULT) <<
-			       (CRBBIT_CLKMULT_B - STDBIT_CLKMULT);
-		break;
-	}
-
-	/*
-	 * Force positive index polarity if IndxSrc is software-driven only,
-	 * otherwise pass it through.
-	 */
-	if (~setup & STDMSK_INDXSRC)
-		crb |= (setup & STDMSK_INDXPOL) >>
-		       (STDBIT_INDXPOL - CRBBIT_INDXPOL_B);
-
-	/*
-	 * If IntSrc has been forced to Disabled, update the MISC2 interrupt
-	 * enable mask to indicate the counter interrupt is disabled.
-	 */
-	if (disable_int_src)
-		devpriv->counter_int_enabs &= ~k->my_event_bits[3];
-
-	/*
-	 * While retaining CounterA and LatchSrc configurations, program the
-	 * new counter operating mode.
-	 */
-	debi_replace(dev, k->my_cra, ~(CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B),
-		     cra);
-	debi_replace(dev, k->my_crb, CRBMSK_CLKENAB_A | CRBMSK_LATCHSRC, crb);
-}
-
-/*
- * Return/set a counter's enable.  enab: 0=always enabled, 1=enabled by index.
- */
-static void set_enable_a(struct comedi_device *dev,
-			 const struct s626_enc_info *k, uint16_t enab)
-{
-	debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A),
-		     enab << CRBBIT_CLKENAB_A);
-}
-
-static void set_enable_b(struct comedi_device *dev, const
-			 struct s626_enc_info *k, uint16_t enab)
-{
-	debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_B),
-		     enab << CRBBIT_CLKENAB_B);
-}
-
-static uint16_t get_enable_a(struct comedi_device *dev,
-			     const struct s626_enc_info *k)
-{
-	return (debi_read(dev, k->my_crb) >> CRBBIT_CLKENAB_A) & 1;
-}
-
-static uint16_t get_enable_b(struct comedi_device *dev,
-			     const struct s626_enc_info *k)
-{
-	return (debi_read(dev, k->my_crb) >> CRBBIT_CLKENAB_B) & 1;
-}
-
-#ifdef unused
-static uint16_t get_latch_source(struct comedi_device *dev,
-				 const struct s626_enc_info *k)
-{
-	return (debi_read(dev, k->my_crb) >> CRBBIT_LATCHSRC) & 3;
-}
-#endif
-
-/*
- * Return/set the event that will trigger transfer of the preload
- * register into the counter.  0=ThisCntr_Index, 1=ThisCntr_Overflow,
- * 2=OverflowA (B counters only), 3=disabled.
- */
-static void set_load_trig_a(struct comedi_device *dev,
-			    const struct s626_enc_info *k, uint16_t trig)
-{
-	debi_replace(dev, k->my_cra, ~CRAMSK_LOADSRC_A,
-		     trig << CRABIT_LOADSRC_A);
-}
-
-static void set_load_trig_b(struct comedi_device *dev,
-			    const struct s626_enc_info *k, uint16_t trig)
-{
-	debi_replace(dev, k->my_crb, ~(CRBMSK_LOADSRC_B | CRBMSK_INTCTRL),
-		     trig << CRBBIT_LOADSRC_B);
-}
-
-static uint16_t get_load_trig_a(struct comedi_device *dev,
-				const struct s626_enc_info *k)
-{
-	return (debi_read(dev, k->my_cra) >> CRABIT_LOADSRC_A) & 3;
-}
-
-static uint16_t get_load_trig_b(struct comedi_device *dev,
-				const struct s626_enc_info *k)
-{
-	return (debi_read(dev, k->my_crb) >> CRBBIT_LOADSRC_B) & 3;
-}
-
 /*
  * Return/set counter interrupt source and clear any captured
  * index/overflow events.  int_source: 0=Disabled, 1=OverflowOnly,
-- 
cgit 


From bc284a2aa5f255597e1c23e4d6daa9aa274fc290 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:33 +0100
Subject: staging: comedi: s626: move encoder functions part 3

Move the final lot of encoder functions to help avoid the forward
declaration of `s626_enc_chan_info[]`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 334 +++++++++++++++++-----------------
 1 file changed, 167 insertions(+), 167 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 1af053619189..05c856c725c9 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -1032,6 +1032,173 @@ static uint16_t get_load_trig_b(struct comedi_device *dev,
 	return (debi_read(dev, k->my_crb) >> CRBBIT_LOADSRC_B) & 3;
 }
 
+/*
+ * Return/set counter interrupt source and clear any captured
+ * index/overflow events.  int_source: 0=Disabled, 1=OverflowOnly,
+ * 2=IndexOnly, 3=IndexAndOverflow.
+ */
+static void set_int_src_a(struct comedi_device *dev,
+			  const struct s626_enc_info *k, uint16_t int_source)
+{
+	struct s626_private *devpriv = dev->private;
+
+	/* Reset any pending counter overflow or index captures. */
+	debi_replace(dev, k->my_crb, ~CRBMSK_INTCTRL,
+		     CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A);
+
+	/* Program counter interrupt source. */
+	debi_replace(dev, k->my_cra, ~CRAMSK_INTSRC_A,
+		     int_source << CRABIT_INTSRC_A);
+
+	/* Update MISC2 interrupt enable mask. */
+	devpriv->counter_int_enabs =
+	    (devpriv->counter_int_enabs & ~k->my_event_bits[3]) |
+	    k->my_event_bits[int_source];
+}
+
+static void set_int_src_b(struct comedi_device *dev,
+			  const struct s626_enc_info *k, uint16_t int_source)
+{
+	struct s626_private *devpriv = dev->private;
+	uint16_t crb;
+
+	/* Cache writeable CRB register image. */
+	crb = debi_read(dev, k->my_crb) & ~CRBMSK_INTCTRL;
+
+	/* Reset any pending counter overflow or index captures. */
+	debi_write(dev, k->my_crb,
+		   (uint16_t)(crb | CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B));
+
+	/* Program counter interrupt source. */
+	debi_write(dev, k->my_crb,
+		   (uint16_t)((crb & ~CRBMSK_INTSRC_B) |
+			      (int_source << CRBBIT_INTSRC_B)));
+
+	/* Update MISC2 interrupt enable mask. */
+	devpriv->counter_int_enabs =
+		(devpriv->counter_int_enabs & ~k->my_event_bits[3]) |
+		k->my_event_bits[int_source];
+}
+
+static uint16_t get_int_src_a(struct comedi_device *dev,
+			      const struct s626_enc_info *k)
+{
+	return (debi_read(dev, k->my_cra) >> CRABIT_INTSRC_A) & 3;
+}
+
+static uint16_t get_int_src_b(struct comedi_device *dev,
+			      const struct s626_enc_info *k)
+{
+	return (debi_read(dev, k->my_crb) >> CRBBIT_INTSRC_B) & 3;
+}
+
+#ifdef unused
+/*
+ * Return/set the clock multiplier.
+ */
+static void set_clk_mult(struct comedi_device *dev,
+			 const struct s626_enc_info *k, uint16_t value)
+{
+	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKMULT) |
+			    (value << STDBIT_CLKMULT)), FALSE);
+}
+
+static uint16_t get_clk_mult(struct comedi_device *dev,
+			     const struct s626_enc_info *k)
+{
+	return (k->get_mode(dev, k) >> STDBIT_CLKMULT) & 3;
+}
+
+/*
+ * Return/set the clock polarity.
+ */
+static void set_clk_pol(struct comedi_device *dev,
+			const struct s626_enc_info *k, uint16_t value)
+{
+	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKPOL) |
+			    (value << STDBIT_CLKPOL)), FALSE);
+}
+
+static uint16_t get_clk_pol(struct comedi_device *dev,
+			    const struct s626_enc_info *k)
+{
+	return (k->get_mode(dev, k) >> STDBIT_CLKPOL) & 1;
+}
+
+/*
+ * Return/set the clock source.
+ */
+static void set_clk_src(struct comedi_device *dev,
+			const struct s626_enc_info *k, uint16_t value)
+{
+	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKSRC) |
+			    (value << STDBIT_CLKSRC)), FALSE);
+}
+
+static uint16_t get_clk_src(struct comedi_device *dev,
+			    const struct s626_enc_info *k)
+{
+	return (k->get_mode(dev, k) >> STDBIT_CLKSRC) & 3;
+}
+
+/*
+ * Return/set the index polarity.
+ */
+static void set_index_pol(struct comedi_device *dev,
+			  const struct s626_enc_info *k, uint16_t value)
+{
+	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_INDXPOL) |
+			    ((value != 0) << STDBIT_INDXPOL)), FALSE);
+}
+
+static uint16_t get_index_pol(struct comedi_device *dev,
+			      const struct s626_enc_info *k)
+{
+	return (k->get_mode(dev, k) >> STDBIT_INDXPOL) & 1;
+}
+
+/*
+ * Return/set the index source.
+ */
+static void set_index_src(struct comedi_device *dev,
+			  const struct s626_enc_info *k, uint16_t value)
+{
+	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_INDXSRC) |
+			    ((value != 0) << STDBIT_INDXSRC)), FALSE);
+}
+
+static uint16_t get_index_src(struct comedi_device *dev,
+			      const struct s626_enc_info *k)
+{
+	return (k->get_mode(dev, k) >> STDBIT_INDXSRC) & 1;
+}
+#endif
+
+/*
+ * Generate an index pulse.
+ */
+static void pulse_index_a(struct comedi_device *dev,
+			  const struct s626_enc_info *k)
+{
+	uint16_t cra;
+
+	cra = debi_read(dev, k->my_cra);
+	/* Pulse index. */
+	debi_write(dev, k->my_cra, (cra ^ CRAMSK_INDXPOL_A));
+	debi_write(dev, k->my_cra, cra);
+}
+
+static void pulse_index_b(struct comedi_device *dev,
+			  const struct s626_enc_info *k)
+{
+	uint16_t crb;
+
+	crb = debi_read(dev, k->my_crb) & ~CRBMSK_INTCTRL;
+	/* Pulse index. */
+	debi_write(dev, k->my_crb, (crb ^ CRBMSK_INDXPOL_B));
+	debi_write(dev, k->my_crb, crb);
+}
+
 static unsigned int s626_ai_reg_to_uint(int data)
 {
 	unsigned int tempdata;
@@ -2203,173 +2370,6 @@ static void close_dma_b(struct comedi_device *dev, struct buffer_dma *pdma,
 	}
 }
 
-/*
- * Return/set counter interrupt source and clear any captured
- * index/overflow events.  int_source: 0=Disabled, 1=OverflowOnly,
- * 2=IndexOnly, 3=IndexAndOverflow.
- */
-static void set_int_src_a(struct comedi_device *dev,
-			  const struct s626_enc_info *k, uint16_t int_source)
-{
-	struct s626_private *devpriv = dev->private;
-
-	/* Reset any pending counter overflow or index captures. */
-	debi_replace(dev, k->my_crb, ~CRBMSK_INTCTRL,
-		     CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A);
-
-	/* Program counter interrupt source. */
-	debi_replace(dev, k->my_cra, ~CRAMSK_INTSRC_A,
-		     int_source << CRABIT_INTSRC_A);
-
-	/* Update MISC2 interrupt enable mask. */
-	devpriv->counter_int_enabs =
-	    (devpriv->counter_int_enabs & ~k->my_event_bits[3]) |
-	    k->my_event_bits[int_source];
-}
-
-static void set_int_src_b(struct comedi_device *dev,
-			  const struct s626_enc_info *k, uint16_t int_source)
-{
-	struct s626_private *devpriv = dev->private;
-	uint16_t crb;
-
-	/* Cache writeable CRB register image. */
-	crb = debi_read(dev, k->my_crb) & ~CRBMSK_INTCTRL;
-
-	/* Reset any pending counter overflow or index captures. */
-	debi_write(dev, k->my_crb,
-		   (uint16_t)(crb | CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B));
-
-	/* Program counter interrupt source. */
-	debi_write(dev, k->my_crb,
-		   (uint16_t)((crb & ~CRBMSK_INTSRC_B) |
-			      (int_source << CRBBIT_INTSRC_B)));
-
-	/* Update MISC2 interrupt enable mask. */
-	devpriv->counter_int_enabs =
-		(devpriv->counter_int_enabs & ~k->my_event_bits[3]) |
-		k->my_event_bits[int_source];
-}
-
-static uint16_t get_int_src_a(struct comedi_device *dev,
-			      const struct s626_enc_info *k)
-{
-	return (debi_read(dev, k->my_cra) >> CRABIT_INTSRC_A) & 3;
-}
-
-static uint16_t get_int_src_b(struct comedi_device *dev,
-			      const struct s626_enc_info *k)
-{
-	return (debi_read(dev, k->my_crb) >> CRBBIT_INTSRC_B) & 3;
-}
-
-#ifdef unused
-/*
- * Return/set the clock multiplier.
- */
-static void set_clk_mult(struct comedi_device *dev,
-			 const struct s626_enc_info *k, uint16_t value)
-{
-	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKMULT) |
-			    (value << STDBIT_CLKMULT)), FALSE);
-}
-
-static uint16_t get_clk_mult(struct comedi_device *dev,
-			     const struct s626_enc_info *k)
-{
-	return (k->get_mode(dev, k) >> STDBIT_CLKMULT) & 3;
-}
-
-/*
- * Return/set the clock polarity.
- */
-static void set_clk_pol(struct comedi_device *dev,
-			const struct s626_enc_info *k, uint16_t value)
-{
-	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKPOL) |
-			    (value << STDBIT_CLKPOL)), FALSE);
-}
-
-static uint16_t get_clk_pol(struct comedi_device *dev,
-			    const struct s626_enc_info *k)
-{
-	return (k->get_mode(dev, k) >> STDBIT_CLKPOL) & 1;
-}
-
-/*
- * Return/set the clock source.
- */
-static void set_clk_src(struct comedi_device *dev,
-			const struct s626_enc_info *k, uint16_t value)
-{
-	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKSRC) |
-			    (value << STDBIT_CLKSRC)), FALSE);
-}
-
-static uint16_t get_clk_src(struct comedi_device *dev,
-			    const struct s626_enc_info *k)
-{
-	return (k->get_mode(dev, k) >> STDBIT_CLKSRC) & 3;
-}
-
-/*
- * Return/set the index polarity.
- */
-static void set_index_pol(struct comedi_device *dev,
-			  const struct s626_enc_info *k, uint16_t value)
-{
-	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_INDXPOL) |
-			    ((value != 0) << STDBIT_INDXPOL)), FALSE);
-}
-
-static uint16_t get_index_pol(struct comedi_device *dev,
-			      const struct s626_enc_info *k)
-{
-	return (k->get_mode(dev, k) >> STDBIT_INDXPOL) & 1;
-}
-
-/*
- * Return/set the index source.
- */
-static void set_index_src(struct comedi_device *dev,
-			  const struct s626_enc_info *k, uint16_t value)
-{
-	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_INDXSRC) |
-			    ((value != 0) << STDBIT_INDXSRC)), FALSE);
-}
-
-static uint16_t get_index_src(struct comedi_device *dev,
-			      const struct s626_enc_info *k)
-{
-	return (k->get_mode(dev, k) >> STDBIT_INDXSRC) & 1;
-}
-#endif
-
-/*
- * Generate an index pulse.
- */
-static void pulse_index_a(struct comedi_device *dev,
-			  const struct s626_enc_info *k)
-{
-	uint16_t cra;
-
-	cra = debi_read(dev, k->my_cra);
-	/* Pulse index. */
-	debi_write(dev, k->my_cra, (cra ^ CRAMSK_INDXPOL_A));
-	debi_write(dev, k->my_cra, cra);
-}
-
-static void pulse_index_b(struct comedi_device *dev,
-			  const struct s626_enc_info *k)
-{
-	uint16_t crb;
-
-	crb = debi_read(dev, k->my_crb) & ~CRBMSK_INTCTRL;
-	/* Pulse index. */
-	debi_write(dev, k->my_crb, (crb ^ CRBMSK_INDXPOL_B));
-	debi_write(dev, k->my_crb, crb);
-}
-
 static const struct s626_enc_info s626_enc_chan_info[] = {
 	{
 		.get_enable		= get_enable_a,
-- 
cgit 


From 3f1f219ce1f814976a3e435b4e6fa963252d7581 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:34 +0100
Subject: staging: comedi: s626: move s626_enc_chan_info[]

Move `s626_enc_chan_info[]` and remove its forward declaration.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 190 +++++++++++++++++-----------------
 1 file changed, 94 insertions(+), 96 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 05c856c725c9..9216e9a02b25 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -139,8 +139,6 @@ struct s626_enc_info {
 	uint16_t my_event_bits[4]; /* bit translations for IntSrc -->RDMISC2 */
 };
 
-static const struct s626_enc_info s626_enc_chan_info[];
-
 /* Counter overflow/index event flag masks for RDMISC2. */
 #define INDXMASK(C)	(1 << (((C) > 2) ? ((C) * 2 - 1) : ((C) * 2 +  4)))
 #define OVERMASK(C)	(1 << (((C) > 2) ? ((C) * 2 + 5) : ((C) * 2 + 10)))
@@ -1199,6 +1197,100 @@ static void pulse_index_b(struct comedi_device *dev,
 	debi_write(dev, k->my_crb, crb);
 }
 
+static const struct s626_enc_info s626_enc_chan_info[] = {
+	{
+		.get_enable		= get_enable_a,
+		.get_int_src		= get_int_src_a,
+		.get_load_trig		= get_load_trig_a,
+		.get_mode		= get_mode_a,
+		.pulse_index		= pulse_index_a,
+		.set_enable		= set_enable_a,
+		.set_int_src		= set_int_src_a,
+		.set_load_trig		= set_load_trig_a,
+		.set_mode		= set_mode_a,
+		.reset_cap_flags	= reset_cap_flags_a,
+		.my_cra			= LP_CR0A,
+		.my_crb			= LP_CR0B,
+		.my_latch_lsw		= LP_CNTR0ALSW,
+		.my_event_bits		= EVBITS(0),
+	}, {
+		.get_enable		= get_enable_a,
+		.get_int_src		= get_int_src_a,
+		.get_load_trig		= get_load_trig_a,
+		.get_mode		= get_mode_a,
+		.pulse_index		= pulse_index_a,
+		.set_enable		= set_enable_a,
+		.set_int_src		= set_int_src_a,
+		.set_load_trig		= set_load_trig_a,
+		.set_mode		= set_mode_a,
+		.reset_cap_flags	= reset_cap_flags_a,
+		.my_cra			= LP_CR1A,
+		.my_crb			= LP_CR1B,
+		.my_latch_lsw		= LP_CNTR1ALSW,
+		.my_event_bits		= EVBITS(1),
+	}, {
+		.get_enable		= get_enable_a,
+		.get_int_src		= get_int_src_a,
+		.get_load_trig		= get_load_trig_a,
+		.get_mode		= get_mode_a,
+		.pulse_index		= pulse_index_a,
+		.set_enable		= set_enable_a,
+		.set_int_src		= set_int_src_a,
+		.set_load_trig		= set_load_trig_a,
+		.set_mode		= set_mode_a,
+		.reset_cap_flags	= reset_cap_flags_a,
+		.my_cra			= LP_CR2A,
+		.my_crb			= LP_CR2B,
+		.my_latch_lsw		= LP_CNTR2ALSW,
+		.my_event_bits		= EVBITS(2),
+	}, {
+		.get_enable		= get_enable_b,
+		.get_int_src		= get_int_src_b,
+		.get_load_trig		= get_load_trig_b,
+		.get_mode		= get_mode_b,
+		.pulse_index		= pulse_index_b,
+		.set_enable		= set_enable_b,
+		.set_int_src		= set_int_src_b,
+		.set_load_trig		= set_load_trig_b,
+		.set_mode		= set_mode_b,
+		.reset_cap_flags	= reset_cap_flags_b,
+		.my_cra			= LP_CR0A,
+		.my_crb			= LP_CR0B,
+		.my_latch_lsw		= LP_CNTR0BLSW,
+		.my_event_bits		= EVBITS(3),
+	}, {
+		.get_enable		= get_enable_b,
+		.get_int_src		= get_int_src_b,
+		.get_load_trig		= get_load_trig_b,
+		.get_mode		= get_mode_b,
+		.pulse_index		= pulse_index_b,
+		.set_enable		= set_enable_b,
+		.set_int_src		= set_int_src_b,
+		.set_load_trig		= set_load_trig_b,
+		.set_mode		= set_mode_b,
+		.reset_cap_flags	= reset_cap_flags_b,
+		.my_cra			= LP_CR1A,
+		.my_crb			= LP_CR1B,
+		.my_latch_lsw		= LP_CNTR1BLSW,
+		.my_event_bits		= EVBITS(4),
+	}, {
+		.get_enable		= get_enable_b,
+		.get_int_src		= get_int_src_b,
+		.get_load_trig		= get_load_trig_b,
+		.get_mode		= get_mode_b,
+		.pulse_index		= pulse_index_b,
+		.set_enable		= set_enable_b,
+		.set_int_src		= set_int_src_b,
+		.set_load_trig		= set_load_trig_b,
+		.set_mode		= set_mode_b,
+		.reset_cap_flags	= reset_cap_flags_b,
+		.my_cra			= LP_CR2A,
+		.my_crb			= LP_CR2B,
+		.my_latch_lsw		= LP_CNTR2BLSW,
+		.my_event_bits		= EVBITS(5),
+	},
+};
+
 static unsigned int s626_ai_reg_to_uint(int data)
 {
 	unsigned int tempdata;
@@ -2370,100 +2462,6 @@ static void close_dma_b(struct comedi_device *dev, struct buffer_dma *pdma,
 	}
 }
 
-static const struct s626_enc_info s626_enc_chan_info[] = {
-	{
-		.get_enable		= get_enable_a,
-		.get_int_src		= get_int_src_a,
-		.get_load_trig		= get_load_trig_a,
-		.get_mode		= get_mode_a,
-		.pulse_index		= pulse_index_a,
-		.set_enable		= set_enable_a,
-		.set_int_src		= set_int_src_a,
-		.set_load_trig		= set_load_trig_a,
-		.set_mode		= set_mode_a,
-		.reset_cap_flags	= reset_cap_flags_a,
-		.my_cra			= LP_CR0A,
-		.my_crb			= LP_CR0B,
-		.my_latch_lsw		= LP_CNTR0ALSW,
-		.my_event_bits		= EVBITS(0),
-	}, {
-		.get_enable		= get_enable_a,
-		.get_int_src		= get_int_src_a,
-		.get_load_trig		= get_load_trig_a,
-		.get_mode		= get_mode_a,
-		.pulse_index		= pulse_index_a,
-		.set_enable		= set_enable_a,
-		.set_int_src		= set_int_src_a,
-		.set_load_trig		= set_load_trig_a,
-		.set_mode		= set_mode_a,
-		.reset_cap_flags	= reset_cap_flags_a,
-		.my_cra			= LP_CR1A,
-		.my_crb			= LP_CR1B,
-		.my_latch_lsw		= LP_CNTR1ALSW,
-		.my_event_bits		= EVBITS(1),
-	}, {
-		.get_enable		= get_enable_a,
-		.get_int_src		= get_int_src_a,
-		.get_load_trig		= get_load_trig_a,
-		.get_mode		= get_mode_a,
-		.pulse_index		= pulse_index_a,
-		.set_enable		= set_enable_a,
-		.set_int_src		= set_int_src_a,
-		.set_load_trig		= set_load_trig_a,
-		.set_mode		= set_mode_a,
-		.reset_cap_flags	= reset_cap_flags_a,
-		.my_cra			= LP_CR2A,
-		.my_crb			= LP_CR2B,
-		.my_latch_lsw		= LP_CNTR2ALSW,
-		.my_event_bits		= EVBITS(2),
-	}, {
-		.get_enable		= get_enable_b,
-		.get_int_src		= get_int_src_b,
-		.get_load_trig		= get_load_trig_b,
-		.get_mode		= get_mode_b,
-		.pulse_index		= pulse_index_b,
-		.set_enable		= set_enable_b,
-		.set_int_src		= set_int_src_b,
-		.set_load_trig		= set_load_trig_b,
-		.set_mode		= set_mode_b,
-		.reset_cap_flags	= reset_cap_flags_b,
-		.my_cra			= LP_CR0A,
-		.my_crb			= LP_CR0B,
-		.my_latch_lsw		= LP_CNTR0BLSW,
-		.my_event_bits		= EVBITS(3),
-	}, {
-		.get_enable		= get_enable_b,
-		.get_int_src		= get_int_src_b,
-		.get_load_trig		= get_load_trig_b,
-		.get_mode		= get_mode_b,
-		.pulse_index		= pulse_index_b,
-		.set_enable		= set_enable_b,
-		.set_int_src		= set_int_src_b,
-		.set_load_trig		= set_load_trig_b,
-		.set_mode		= set_mode_b,
-		.reset_cap_flags	= reset_cap_flags_b,
-		.my_cra			= LP_CR1A,
-		.my_crb			= LP_CR1B,
-		.my_latch_lsw		= LP_CNTR1BLSW,
-		.my_event_bits		= EVBITS(4),
-	}, {
-		.get_enable		= get_enable_b,
-		.get_int_src		= get_int_src_b,
-		.get_load_trig		= get_load_trig_b,
-		.get_mode		= get_mode_b,
-		.pulse_index		= pulse_index_b,
-		.set_enable		= set_enable_b,
-		.set_int_src		= set_int_src_b,
-		.set_load_trig		= set_load_trig_b,
-		.set_mode		= set_mode_b,
-		.reset_cap_flags	= reset_cap_flags_b,
-		.my_cra			= LP_CR2A,
-		.my_crb			= LP_CR2B,
-		.my_latch_lsw		= LP_CNTR2BLSW,
-		.my_event_bits		= EVBITS(5),
-	},
-};
-
 static void counters_init(struct comedi_device *dev)
 {
 	int chan;
-- 
cgit 


From c3e3a56d40c451271b1be4d6d3ec3b62af879228 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:35 +0100
Subject: staging: comedi: s626: remove TRUE and FALSE macros

"s626.h" defines the macros `TRUE` and `FALSE` if they are not already
defined, yielding the expected numeric values.  Remove the macros and
replace their usage with the values `true` and `false`, respectively.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 18 +++++++++---------
 drivers/staging/comedi/drivers/s626.h |  8 --------
 2 files changed, 9 insertions(+), 17 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 9216e9a02b25..733e62ba7984 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -1098,7 +1098,7 @@ static void set_clk_mult(struct comedi_device *dev,
 			 const struct s626_enc_info *k, uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKMULT) |
-			    (value << STDBIT_CLKMULT)), FALSE);
+			    (value << STDBIT_CLKMULT)), false);
 }
 
 static uint16_t get_clk_mult(struct comedi_device *dev,
@@ -1114,7 +1114,7 @@ static void set_clk_pol(struct comedi_device *dev,
 			const struct s626_enc_info *k, uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKPOL) |
-			    (value << STDBIT_CLKPOL)), FALSE);
+			    (value << STDBIT_CLKPOL)), false);
 }
 
 static uint16_t get_clk_pol(struct comedi_device *dev,
@@ -1130,7 +1130,7 @@ static void set_clk_src(struct comedi_device *dev,
 			const struct s626_enc_info *k, uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKSRC) |
-			    (value << STDBIT_CLKSRC)), FALSE);
+			    (value << STDBIT_CLKSRC)), false);
 }
 
 static uint16_t get_clk_src(struct comedi_device *dev,
@@ -1146,7 +1146,7 @@ static void set_index_pol(struct comedi_device *dev,
 			  const struct s626_enc_info *k, uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_INDXPOL) |
-			    ((value != 0) << STDBIT_INDXPOL)), FALSE);
+			    ((value != 0) << STDBIT_INDXPOL)), false);
 }
 
 static uint16_t get_index_pol(struct comedi_device *dev,
@@ -1162,7 +1162,7 @@ static void set_index_src(struct comedi_device *dev,
 			  const struct s626_enc_info *k, uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_INDXSRC) |
-			    ((value != 0) << STDBIT_INDXSRC)), FALSE);
+			    ((value != 0) << STDBIT_INDXSRC)), false);
 }
 
 static uint16_t get_index_src(struct comedi_device *dev,
@@ -2000,7 +2000,7 @@ static void s626_timer_load(struct comedi_device *dev,
 	uint16_t value_latchsrc = LATCHSRC_A_INDXA;
 	/* uint16_t enab = CLKENAB_ALWAYS; */
 
-	k->set_mode(dev, k, setup, FALSE);
+	k->set_mode(dev, k, setup, false);
 
 	/* Set the preload register */
 	preload(dev, k, tick);
@@ -2382,7 +2382,7 @@ static int s626_enc_insn_config(struct comedi_device *dev,
 		(CLKPOL_POS << BF_CLKPOL) |	/* Active high clock. */
 		(CLKMULT_1X << BF_CLKMULT) |	/* Clock multiplier is 1x. */
 		(CLKENAB_INDEX << BF_CLKENAB);
-	/* uint16_t disable_int_src = TRUE; */
+	/* uint16_t disable_int_src = true; */
 	/* uint32_t Preloadvalue;              //Counter initial value */
 	uint16_t value_latchsrc = LATCHSRC_AB_READ;
 	uint16_t enab = CLKENAB_ALWAYS;
@@ -2391,7 +2391,7 @@ static int s626_enc_insn_config(struct comedi_device *dev,
 
 	/* (data==NULL) ? (Preloadvalue=0) : (Preloadvalue=data[0]); */
 
-	k->set_mode(dev, k, setup, TRUE);
+	k->set_mode(dev, k, setup, true);
 	preload(dev, k, data[0]);
 	k->pulse_index(dev, k);
 	set_latch_source(dev, k, value_latchsrc);
@@ -2480,7 +2480,7 @@ static void counters_init(struct comedi_device *dev)
 	 */
 	for (chan = 0; chan < S626_ENCODER_CHANNELS; chan++) {
 		k = &s626_enc_chan_info[chan];
-		k->set_mode(dev, k, setup, TRUE);
+		k->set_mode(dev, k, setup, true);
 		k->set_int_src(dev, k, 0);
 		k->reset_cap_flags(dev, k);
 		k->set_enable(dev, k, CLKENAB_ALWAYS);
diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h
index db16b1861523..2d332bf0f1e3 100644
--- a/drivers/staging/comedi/drivers/s626.h
+++ b/drivers/staging/comedi/drivers/s626.h
@@ -22,14 +22,6 @@
 #ifndef S626_H_INCLUDED
 #define S626_H_INCLUDED
 
-#if !defined(TRUE)
-#define TRUE    (1)
-#endif
-
-#if !defined(FALSE)
-#define FALSE   (0)
-#endif
-
 #define S626_SIZE		0x200
 #define DMABUF_SIZE		4096	/* 4k pages */
 
-- 
cgit 


From bb49cddc02697b2e9d9c849488833055998ec863 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:36 +0100
Subject: staging: comedi: s626: add mmiowb() calls

`s626_mc_enable()` is often called to enable some function in a control
register after setting up some other registers.  Precede the write to
the control register with a call to `mmiowb()` to preserve mmio write
ordering.

`s626_mc_disable()` is called to disable some function in a control
register and is often followed up by writes to other registers.  Follow
the write to the control register with a call to `mmiowb()` to preserve
mmio write ordering.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 733e62ba7984..7c51754d8a79 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -161,6 +161,7 @@ static void s626_mc_enable(struct comedi_device *dev,
 	struct s626_private *devpriv = dev->private;
 	unsigned int val = (cmd << 16) | cmd;
 
+	mmiowb();
 	writel(val, devpriv->mmio + reg);
 }
 
@@ -170,6 +171,7 @@ static void s626_mc_disable(struct comedi_device *dev,
 	struct s626_private *devpriv = dev->private;
 
 	writel(cmd << 16 , devpriv->mmio + reg);
+	mmiowb();
 }
 
 static bool s626_mc_test(struct comedi_device *dev,
-- 
cgit 


From a3ae88f83b21126540fff0ae39fd2b641ce9709a Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:37 +0100
Subject: staging: comedi: s626: make trimchan[] and trimadrs[] const

Declare the static variables `trimchan[]` and `trimadrs[]` as constant
data.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 7c51754d8a79..529ba3194adf 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -339,10 +339,10 @@ static uint8_t i2c_read(struct comedi_device *dev, uint8_t addr)
 /* Slot 0 always shifts in  0xFF and store it to  FB_BUFFER2. */
 
 /* TrimDac LogicalChan-to-PhysicalChan mapping table. */
-static uint8_t trimchan[] = { 10, 9, 8, 3, 2, 7, 6, 1, 0, 5, 4 };
+static const uint8_t trimchan[] = { 10, 9, 8, 3, 2, 7, 6, 1, 0, 5, 4 };
 
 /* TrimDac LogicalChan-to-EepromAdrs mapping table. */
-static uint8_t trimadrs[] = {
+static const uint8_t trimadrs[] = {
 	0x40, 0x41, 0x42, 0x50, 0x51, 0x52, 0x53, 0x60, 0x61, 0x62, 0x63
 };
 
-- 
cgit 


From 8e06d662871c0e13f856d9e30bdd2693032fb136 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:38 +0100
Subject: staging: comedi: s626: move struct buffer_dma

Move the declaration of `struct buffer_dma` from "s626.h" to "s626.c" as
it seems more at home there.  After this move, "s626.h" just contains
macros related to hardware registers.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 5 +++++
 drivers/staging/comedi/drivers/s626.h | 5 -----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 529ba3194adf..34c4eb0a44f2 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -71,6 +71,11 @@
 #include "comedi_fc.h"
 #include "s626.h"
 
+struct buffer_dma {
+	dma_addr_t physical_base;
+	void *logical_base;
+};
+
 struct s626_private {
 	void __iomem *mmio;
 	uint8_t ai_cmd_running;		/* ai_cmd is running */
diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h
index 2d332bf0f1e3..605926ed861b 100644
--- a/drivers/staging/comedi/drivers/s626.h
+++ b/drivers/staging/comedi/drivers/s626.h
@@ -614,9 +614,4 @@
 #define STDMSK_CLKMULT		(3 << STDBIT_CLKMULT)
 #define STDMSK_CLKENAB		(1 << STDBIT_CLKENAB)
 
-struct buffer_dma {
-	dma_addr_t physical_base;
-	void *logical_base;
-};
-
 #endif
-- 
cgit 


From dbb263f5bd685c1794b065a34bf3d9e6a0b5f8de Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:39 +0100
Subject: staging: comedi: s626: rename struct buffer_dma

Re-tag `struct buffer_dma` to `struct s626_buffer_dma` to avoid
potential namespace clashes.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 34c4eb0a44f2..3d476e32f38c 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -71,7 +71,7 @@
 #include "comedi_fc.h"
 #include "s626.h"
 
-struct buffer_dma {
+struct s626_buffer_dma {
 	dma_addr_t physical_base;
 	void *logical_base;
 };
@@ -89,9 +89,9 @@ struct s626_private {
 	uint16_t counter_int_enabs;	/* counter interrupt enable mask
 					 * for MISC2 register */
 	uint8_t adc_items;		/* number of items in ADC poll list */
-	struct buffer_dma rps_buf;	/* DMA buffer used to hold ADC (RPS1)
+	struct s626_buffer_dma rps_buf;	/* DMA buffer used to hold ADC (RPS1)
 					 * program */
-	struct buffer_dma ana_buf;	/* DMA buffer used to receive ADC data
+	struct s626_buffer_dma ana_buf;	/* DMA buffer used to receive ADC data
 					 * and hold DAC data */
 	uint32_t *dac_wbuf;		/* pointer to logical adrs of DMA buffer
 					 * used to hold DAC data */
@@ -2449,7 +2449,7 @@ static void write_misc2(struct comedi_device *dev, uint16_t new_image)
 	debi_write(dev, LP_MISC1, MISC1_WDISABLE); /* Disable writes to MISC2 */
 }
 
-static void close_dma_b(struct comedi_device *dev, struct buffer_dma *pdma,
+static void close_dma_b(struct comedi_device *dev, struct s626_buffer_dma *pdma,
 			size_t bsize)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
-- 
cgit 


From 31de1948d84ae3af2bdab366991433b718095957 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:40 +0100
Subject: staging: comedi: s626: prefix function and variable names

Add the prefix `s626_` to all the static variables and functions that
don't already have it.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 551 +++++++++++++++++-----------------
 1 file changed, 281 insertions(+), 270 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 3d476e32f38c..38f129aa09d2 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -152,7 +152,7 @@ struct s626_enc_info {
 
 /*
  * Translation table to map IntSrc into equivalent RDMISC2 event flag  bits.
- * static const uint16_t event_bits[][4] =
+ * static const uint16_t s626_event_bits[][4] =
  *     { EVBITS(0), EVBITS(1), EVBITS(2), EVBITS(3), EVBITS(4), EVBITS(5) };
  */
 
@@ -205,7 +205,7 @@ static const struct comedi_lrange s626_range_table = {
 /*
  * Execute a DEBI transfer.  This must be called from within a critical section.
  */
-static void debi_transfer(struct comedi_device *dev)
+static void s626_debi_transfer(struct comedi_device *dev)
 {
 	struct s626_private *devpriv = dev->private;
 
@@ -227,7 +227,7 @@ static void debi_transfer(struct comedi_device *dev)
 /*
  * Read a value from a gate array register.
  */
-static uint16_t debi_read(struct comedi_device *dev, uint16_t addr)
+static uint16_t s626_debi_read(struct comedi_device *dev, uint16_t addr)
 {
 	struct s626_private *devpriv = dev->private;
 
@@ -235,7 +235,7 @@ static uint16_t debi_read(struct comedi_device *dev, uint16_t addr)
 	writel(DEBI_CMD_RDWORD | addr, devpriv->mmio + P_DEBICMD);
 
 	/*  Execute the DEBI transfer. */
-	debi_transfer(dev);
+	s626_debi_transfer(dev);
 
 	return readl(devpriv->mmio + P_DEBIAD);
 }
@@ -243,7 +243,8 @@ static uint16_t debi_read(struct comedi_device *dev, uint16_t addr)
 /*
  * Write a value to a gate array register.
  */
-static void debi_write(struct comedi_device *dev, uint16_t addr, uint16_t wdata)
+static void s626_debi_write(struct comedi_device *dev, uint16_t addr,
+			    uint16_t wdata)
 {
 	struct s626_private *devpriv = dev->private;
 
@@ -252,7 +253,7 @@ static void debi_write(struct comedi_device *dev, uint16_t addr, uint16_t wdata)
 	writel(wdata, devpriv->mmio + P_DEBIAD);
 
 	/*  Execute the DEBI transfer. */
-	debi_transfer(dev);
+	s626_debi_transfer(dev);
 }
 
 /*
@@ -260,27 +261,27 @@ static void debi_write(struct comedi_device *dev, uint16_t addr, uint16_t wdata)
  * specifies bits that are to be preserved, wdata is new value to be
  * or'd with the masked original.
  */
-static void debi_replace(struct comedi_device *dev, unsigned int addr,
-			 unsigned int mask, unsigned int wdata)
+static void s626_debi_replace(struct comedi_device *dev, unsigned int addr,
+			      unsigned int mask, unsigned int wdata)
 {
 	struct s626_private *devpriv = dev->private;
 	unsigned int val;
 
 	addr &= 0xffff;
 	writel(DEBI_CMD_RDWORD | addr, devpriv->mmio + P_DEBICMD);
-	debi_transfer(dev);
+	s626_debi_transfer(dev);
 
 	writel(DEBI_CMD_WRWORD | addr, devpriv->mmio + P_DEBICMD);
 	val = readl(devpriv->mmio + P_DEBIAD);
 	val &= mask;
 	val |= wdata;
 	writel(val & 0xffff, devpriv->mmio + P_DEBIAD);
-	debi_transfer(dev);
+	s626_debi_transfer(dev);
 }
 
 /* **************  EEPROM ACCESS FUNCTIONS  ************** */
 
-static uint32_t i2c_handshake(struct comedi_device *dev, uint32_t val)
+static uint32_t s626_i2c_handshake(struct comedi_device *dev, uint32_t val)
 {
 	struct s626_private *devpriv = dev->private;
 	unsigned int ctrl;
@@ -306,7 +307,7 @@ static uint32_t i2c_handshake(struct comedi_device *dev, uint32_t val)
 }
 
 /* Read uint8_t from EEPROM. */
-static uint8_t i2c_read(struct comedi_device *dev, uint8_t addr)
+static uint8_t s626_i2c_read(struct comedi_device *dev, uint8_t addr)
 {
 	struct s626_private *devpriv = dev->private;
 
@@ -316,9 +317,9 @@ static uint8_t i2c_read(struct comedi_device *dev, uint8_t addr)
 	 *  Byte1 = EEPROM internal target address.
 	 *  Byte0 = Not sent.
 	 */
-	if (i2c_handshake(dev, I2C_B2(I2C_ATTRSTART, devpriv->i2c_adrs) |
-			       I2C_B1(I2C_ATTRSTOP, addr) |
-			       I2C_B0(I2C_ATTRNOP, 0)))
+	if (s626_i2c_handshake(dev, I2C_B2(I2C_ATTRSTART, devpriv->i2c_adrs) |
+				    I2C_B1(I2C_ATTRSTOP, addr) |
+				    I2C_B0(I2C_ATTRNOP, 0)))
 		/* Abort function and declare error if handshake failed. */
 		return 0;
 
@@ -328,9 +329,10 @@ static uint8_t i2c_read(struct comedi_device *dev, uint8_t addr)
 	 *  Byte1 receives uint8_t from EEPROM.
 	 *  Byte0 = Not sent.
 	 */
-	if (i2c_handshake(dev, I2C_B2(I2C_ATTRSTART, (devpriv->i2c_adrs | 1)) |
-			       I2C_B1(I2C_ATTRSTOP, 0) |
-			       I2C_B0(I2C_ATTRNOP, 0)))
+	if (s626_i2c_handshake(dev, I2C_B2(I2C_ATTRSTART,
+					   (devpriv->i2c_adrs | 1)) |
+				    I2C_B1(I2C_ATTRSTOP, 0) |
+				    I2C_B0(I2C_ATTRNOP, 0)))
 		/* Abort function and declare error if handshake failed. */
 		return 0;
 
@@ -344,10 +346,10 @@ static uint8_t i2c_read(struct comedi_device *dev, uint8_t addr)
 /* Slot 0 always shifts in  0xFF and store it to  FB_BUFFER2. */
 
 /* TrimDac LogicalChan-to-PhysicalChan mapping table. */
-static const uint8_t trimchan[] = { 10, 9, 8, 3, 2, 7, 6, 1, 0, 5, 4 };
+static const uint8_t s626_trimchan[] = { 10, 9, 8, 3, 2, 7, 6, 1, 0, 5, 4 };
 
 /* TrimDac LogicalChan-to-EepromAdrs mapping table. */
-static const uint8_t trimadrs[] = {
+static const uint8_t s626_trimadrs[] = {
 	0x40, 0x41, 0x42, 0x50, 0x51, 0x52, 0x53, 0x60, 0x61, 0x62, 0x63
 };
 
@@ -356,7 +358,7 @@ static const uint8_t trimadrs[] = {
  * channel 2.  Assumes: (1) TSL2 slot records initialized, and (2)
  * dacpol contains valid target image.
  */
-static void send_dac(struct comedi_device *dev, uint32_t val)
+static void s626_send_dac(struct comedi_device *dev, uint32_t val)
 {
 	struct s626_private *devpriv = dev->private;
 
@@ -367,12 +369,12 @@ static void send_dac(struct comedi_device *dev, uint32_t val)
 	 * and audio bit stream signals.  At this point in time we must be
 	 * assured of being in time slot 0.  If we are not in slot 0, the
 	 * serial clock and audio stream signals will be disabled; this is
-	 * because the following debi_write statement (which enables signals
-	 * to be passed through the gate array) would execute before the
-	 * trailing edge of WS1/WS3 (which turns off the signals), thus
+	 * because the following s626_debi_write statement (which enables
+	 * signals to be passed through the gate array) would execute before
+	 * the trailing edge of WS1/WS3 (which turns off the signals), thus
 	 * causing the signals to be inactive during the DAC write.
 	 */
-	debi_write(dev, LP_DACPOL, devpriv->dacpol);
+	s626_debi_write(dev, LP_DACPOL, devpriv->dacpol);
 
 	/* TRANSFER OUTPUT DWORD VALUE INTO A2'S OUTPUT FIFO ---------------- */
 
@@ -491,7 +493,8 @@ static void send_dac(struct comedi_device *dev, uint32_t val)
 /*
  * Private helper function: Write setpoint to an application DAC channel.
  */
-static void set_dac(struct comedi_device *dev, uint16_t chan, short dacdata)
+static void s626_set_dac(struct comedi_device *dev, uint16_t chan,
+			 short dacdata)
 {
 	struct s626_private *devpriv = dev->private;
 	uint16_t signmask;
@@ -549,11 +552,11 @@ static void set_dac(struct comedi_device *dev, uint16_t chan, short dacdata)
 	val |= ((uint32_t)(chan & 1) << 15);	/* Address the DAC channel
 						 * within the device. */
 	val |= (uint32_t)dacdata;	/* Include DAC setpoint data. */
-	send_dac(dev, val);
+	s626_send_dac(dev, val);
 }
 
-static void write_trim_dac(struct comedi_device *dev, uint8_t logical_chan,
-			   uint8_t dac_data)
+static void s626_write_trim_dac(struct comedi_device *dev, uint8_t logical_chan,
+				uint8_t dac_data)
 {
 	struct s626_private *devpriv = dev->private;
 	uint32_t chan;
@@ -565,7 +568,7 @@ static void write_trim_dac(struct comedi_device *dev, uint8_t logical_chan,
 	devpriv->trim_setpoint[logical_chan] = (uint8_t)dac_data;
 
 	/* Map logical channel number to physical channel number. */
-	chan = trimchan[logical_chan];
+	chan = s626_trimchan[logical_chan];
 
 	/*
 	 * Set up TSL2 records for TrimDac write operation.  All slots shift
@@ -595,16 +598,17 @@ static void write_trim_dac(struct comedi_device *dev, uint8_t logical_chan,
 	 * Address the DAC channel within the trimdac device.
 	 * Include DAC setpoint data.
 	 */
-	send_dac(dev, (chan << 8) | dac_data);
+	s626_send_dac(dev, (chan << 8) | dac_data);
 }
 
-static void load_trim_dacs(struct comedi_device *dev)
+static void s626_load_trim_dacs(struct comedi_device *dev)
 {
 	uint8_t i;
 
 	/* Copy TrimDac setpoint values from EEPROM to TrimDacs. */
-	for (i = 0; i < ARRAY_SIZE(trimchan); i++)
-		write_trim_dac(dev, i, i2c_read(dev, trimadrs[i]));
+	for (i = 0; i < ARRAY_SIZE(s626_trimchan); i++)
+		s626_write_trim_dac(dev, i,
+				    s626_i2c_read(dev, s626_trimadrs[i]));
 }
 
 /* ******  COUNTER FUNCTIONS  ******* */
@@ -619,16 +623,16 @@ static void load_trim_dacs(struct comedi_device *dev)
 /*
  * Read a counter's output latch.
  */
-static uint32_t read_latch(struct comedi_device *dev,
-			   const struct s626_enc_info *k)
+static uint32_t s626_read_latch(struct comedi_device *dev,
+				const struct s626_enc_info *k)
 {
 	uint32_t value;
 
 	/* Latch counts and fetch LSW of latched counts value. */
-	value = debi_read(dev, k->my_latch_lsw);
+	value = s626_debi_read(dev, k->my_latch_lsw);
 
 	/* Fetch MSW of latched counts and combine with LSW. */
-	value |= ((uint32_t)debi_read(dev, k->my_latch_lsw + 2) << 16);
+	value |= ((uint32_t)s626_debi_read(dev, k->my_latch_lsw + 2) << 16);
 
 	/* Return latched counts. */
 	return value;
@@ -639,21 +643,21 @@ static uint32_t read_latch(struct comedi_device *dev,
  * access, 1: A index latches A, 2: B index latches B, 3: A overflow
  * latches B.
  */
-static void set_latch_source(struct comedi_device *dev,
-			     const struct s626_enc_info *k, uint16_t value)
+static void s626_set_latch_source(struct comedi_device *dev,
+				  const struct s626_enc_info *k, uint16_t value)
 {
-	debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_LATCHSRC),
-		     value << CRBBIT_LATCHSRC);
+	s626_debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_LATCHSRC),
+			  value << CRBBIT_LATCHSRC);
 }
 
 /*
  * Write value into counter preload register.
  */
-static void preload(struct comedi_device *dev, const struct s626_enc_info *k,
-		    uint32_t value)
+static void s626_preload(struct comedi_device *dev,
+			 const struct s626_enc_info *k, uint32_t value)
 {
-	debi_write(dev, k->my_latch_lsw, value);
-	debi_write(dev, k->my_latch_lsw + 2, value >> 16);
+	s626_debi_write(dev, k->my_latch_lsw, value);
+	s626_debi_write(dev, k->my_latch_lsw + 2, value >> 16);
 }
 
 /* ******  PRIVATE COUNTER FUNCTIONS ****** */
@@ -661,34 +665,34 @@ static void preload(struct comedi_device *dev, const struct s626_enc_info *k,
 /*
  * Reset a counter's index and overflow event capture flags.
  */
-static void reset_cap_flags_a(struct comedi_device *dev,
-			      const struct s626_enc_info *k)
+static void s626_reset_cap_flags_a(struct comedi_device *dev,
+				   const struct s626_enc_info *k)
 {
-	debi_replace(dev, k->my_crb, ~CRBMSK_INTCTRL,
-		     CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A);
+	s626_debi_replace(dev, k->my_crb, ~CRBMSK_INTCTRL,
+			  CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A);
 }
 
-static void reset_cap_flags_b(struct comedi_device *dev,
-			      const struct s626_enc_info *k)
+static void s626_reset_cap_flags_b(struct comedi_device *dev,
+				   const struct s626_enc_info *k)
 {
-	debi_replace(dev, k->my_crb, ~CRBMSK_INTCTRL,
-		     CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B);
+	s626_debi_replace(dev, k->my_crb, ~CRBMSK_INTCTRL,
+			  CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B);
 }
 
 /*
  * Return counter setup in a format (COUNTER_SETUP) that is consistent
  * for both A and B counters.
  */
-static uint16_t get_mode_a(struct comedi_device *dev,
-			   const struct s626_enc_info *k)
+static uint16_t s626_get_mode_a(struct comedi_device *dev,
+				const struct s626_enc_info *k)
 {
 	uint16_t cra;
 	uint16_t crb;
 	uint16_t setup;
 
 	/* Fetch CRA and CRB register images. */
-	cra = debi_read(dev, k->my_cra);
-	crb = debi_read(dev, k->my_crb);
+	cra = s626_debi_read(dev, k->my_cra);
+	crb = s626_debi_read(dev, k->my_crb);
 
 	/*
 	 * Populate the standardized counter setup bit fields.
@@ -735,16 +739,16 @@ static uint16_t get_mode_a(struct comedi_device *dev,
 	return setup;
 }
 
-static uint16_t get_mode_b(struct comedi_device *dev,
-			   const struct s626_enc_info *k)
+static uint16_t s626_get_mode_b(struct comedi_device *dev,
+				const struct s626_enc_info *k)
 {
 	uint16_t cra;
 	uint16_t crb;
 	uint16_t setup;
 
 	/* Fetch CRA and CRB register images. */
-	cra = debi_read(dev, k->my_cra);
-	crb = debi_read(dev, k->my_crb);
+	cra = s626_debi_read(dev, k->my_cra);
+	crb = s626_debi_read(dev, k->my_crb);
 
 	/*
 	 * Populate the standardized counter setup bit fields.
@@ -804,8 +808,9 @@ static uint16_t get_mode_b(struct comedi_device *dev,
  * parameters are programmable (all other parms are ignored): ClkMult,
  * ClkPol, ClkEnab, IndexSrc, IndexPol, LoadSrc.
  */
-static void set_mode_a(struct comedi_device *dev, const struct s626_enc_info *k,
-		       uint16_t setup, uint16_t disable_int_src)
+static void s626_set_mode_a(struct comedi_device *dev,
+			    const struct s626_enc_info *k, uint16_t setup,
+			    uint16_t disable_int_src)
 {
 	struct s626_private *devpriv = dev->private;
 	uint16_t cra;
@@ -878,12 +883,15 @@ static void set_mode_a(struct comedi_device *dev, const struct s626_enc_info *k,
 	 * While retaining CounterB and LatchSrc configurations, program the
 	 * new counter operating mode.
 	 */
-	debi_replace(dev, k->my_cra, CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B, cra);
-	debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A), crb);
+	s626_debi_replace(dev, k->my_cra, CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B,
+			  cra);
+	s626_debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A),
+			  crb);
 }
 
-static void set_mode_b(struct comedi_device *dev, const struct s626_enc_info *k,
-		       uint16_t setup, uint16_t disable_int_src)
+static void s626_set_mode_b(struct comedi_device *dev,
+			    const struct s626_enc_info *k, uint16_t setup,
+			    uint16_t disable_int_src)
 {
 	struct s626_private *devpriv = dev->private;
 	uint16_t cra;
@@ -964,45 +972,46 @@ static void set_mode_b(struct comedi_device *dev, const struct s626_enc_info *k,
 	 * While retaining CounterA and LatchSrc configurations, program the
 	 * new counter operating mode.
 	 */
-	debi_replace(dev, k->my_cra, ~(CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B),
-		     cra);
-	debi_replace(dev, k->my_crb, CRBMSK_CLKENAB_A | CRBMSK_LATCHSRC, crb);
+	s626_debi_replace(dev, k->my_cra, ~(CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B),
+			  cra);
+	s626_debi_replace(dev, k->my_crb, CRBMSK_CLKENAB_A | CRBMSK_LATCHSRC,
+			  crb);
 }
 
 /*
  * Return/set a counter's enable.  enab: 0=always enabled, 1=enabled by index.
  */
-static void set_enable_a(struct comedi_device *dev,
-			 const struct s626_enc_info *k, uint16_t enab)
+static void s626_set_enable_a(struct comedi_device *dev,
+			      const struct s626_enc_info *k, uint16_t enab)
 {
-	debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A),
-		     enab << CRBBIT_CLKENAB_A);
+	s626_debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A),
+			  enab << CRBBIT_CLKENAB_A);
 }
 
-static void set_enable_b(struct comedi_device *dev,
-			 const struct s626_enc_info *k, uint16_t enab)
+static void s626_set_enable_b(struct comedi_device *dev,
+			      const struct s626_enc_info *k, uint16_t enab)
 {
-	debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_B),
-		     enab << CRBBIT_CLKENAB_B);
+	s626_debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_B),
+			  enab << CRBBIT_CLKENAB_B);
 }
 
-static uint16_t get_enable_a(struct comedi_device *dev,
-			     const struct s626_enc_info *k)
+static uint16_t s626_get_enable_a(struct comedi_device *dev,
+				  const struct s626_enc_info *k)
 {
-	return (debi_read(dev, k->my_crb) >> CRBBIT_CLKENAB_A) & 1;
+	return (s626_debi_read(dev, k->my_crb) >> CRBBIT_CLKENAB_A) & 1;
 }
 
-static uint16_t get_enable_b(struct comedi_device *dev,
-			     const struct s626_enc_info *k)
+static uint16_t s626_get_enable_b(struct comedi_device *dev,
+				  const struct s626_enc_info *k)
 {
-	return (debi_read(dev, k->my_crb) >> CRBBIT_CLKENAB_B) & 1;
+	return (s626_debi_read(dev, k->my_crb) >> CRBBIT_CLKENAB_B) & 1;
 }
 
 #ifdef unused
-static uint16_t get_latch_source(struct comedi_device *dev,
-				 const struct s626_enc_info *k)
+static uint16_t s626_get_latch_source(struct comedi_device *dev,
+				      const struct s626_enc_info *k)
 {
-	return (debi_read(dev, k->my_crb) >> CRBBIT_LATCHSRC) & 3;
+	return (s626_debi_read(dev, k->my_crb) >> CRBBIT_LATCHSRC) & 3;
 }
 #endif
 
@@ -1011,30 +1020,30 @@ static uint16_t get_latch_source(struct comedi_device *dev,
  * register into the counter.  0=ThisCntr_Index, 1=ThisCntr_Overflow,
  * 2=OverflowA (B counters only), 3=disabled.
  */
-static void set_load_trig_a(struct comedi_device *dev,
-			    const struct s626_enc_info *k, uint16_t trig)
+static void s626_set_load_trig_a(struct comedi_device *dev,
+				 const struct s626_enc_info *k, uint16_t trig)
 {
-	debi_replace(dev, k->my_cra, ~CRAMSK_LOADSRC_A,
-		     trig << CRABIT_LOADSRC_A);
+	s626_debi_replace(dev, k->my_cra, ~CRAMSK_LOADSRC_A,
+			  trig << CRABIT_LOADSRC_A);
 }
 
-static void set_load_trig_b(struct comedi_device *dev,
-			    const struct s626_enc_info *k, uint16_t trig)
+static void s626_set_load_trig_b(struct comedi_device *dev,
+				 const struct s626_enc_info *k, uint16_t trig)
 {
-	debi_replace(dev, k->my_crb, ~(CRBMSK_LOADSRC_B | CRBMSK_INTCTRL),
-		     trig << CRBBIT_LOADSRC_B);
+	s626_debi_replace(dev, k->my_crb, ~(CRBMSK_LOADSRC_B | CRBMSK_INTCTRL),
+			  trig << CRBBIT_LOADSRC_B);
 }
 
-static uint16_t get_load_trig_a(struct comedi_device *dev,
-				const struct s626_enc_info *k)
+static uint16_t s626_get_load_trig_a(struct comedi_device *dev,
+				     const struct s626_enc_info *k)
 {
-	return (debi_read(dev, k->my_cra) >> CRABIT_LOADSRC_A) & 3;
+	return (s626_debi_read(dev, k->my_cra) >> CRABIT_LOADSRC_A) & 3;
 }
 
-static uint16_t get_load_trig_b(struct comedi_device *dev,
-				const struct s626_enc_info *k)
+static uint16_t s626_get_load_trig_b(struct comedi_device *dev,
+				     const struct s626_enc_info *k)
 {
-	return (debi_read(dev, k->my_crb) >> CRBBIT_LOADSRC_B) & 3;
+	return (s626_debi_read(dev, k->my_crb) >> CRBBIT_LOADSRC_B) & 3;
 }
 
 /*
@@ -1042,18 +1051,19 @@ static uint16_t get_load_trig_b(struct comedi_device *dev,
  * index/overflow events.  int_source: 0=Disabled, 1=OverflowOnly,
  * 2=IndexOnly, 3=IndexAndOverflow.
  */
-static void set_int_src_a(struct comedi_device *dev,
-			  const struct s626_enc_info *k, uint16_t int_source)
+static void s626_set_int_src_a(struct comedi_device *dev,
+			       const struct s626_enc_info *k,
+			       uint16_t int_source)
 {
 	struct s626_private *devpriv = dev->private;
 
 	/* Reset any pending counter overflow or index captures. */
-	debi_replace(dev, k->my_crb, ~CRBMSK_INTCTRL,
-		     CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A);
+	s626_debi_replace(dev, k->my_crb, ~CRBMSK_INTCTRL,
+			  CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A);
 
 	/* Program counter interrupt source. */
-	debi_replace(dev, k->my_cra, ~CRAMSK_INTSRC_A,
-		     int_source << CRABIT_INTSRC_A);
+	s626_debi_replace(dev, k->my_cra, ~CRAMSK_INTSRC_A,
+			  int_source << CRABIT_INTSRC_A);
 
 	/* Update MISC2 interrupt enable mask. */
 	devpriv->counter_int_enabs =
@@ -1061,23 +1071,24 @@ static void set_int_src_a(struct comedi_device *dev,
 	    k->my_event_bits[int_source];
 }
 
-static void set_int_src_b(struct comedi_device *dev,
-			  const struct s626_enc_info *k, uint16_t int_source)
+static void s626_set_int_src_b(struct comedi_device *dev,
+			       const struct s626_enc_info *k,
+			       uint16_t int_source)
 {
 	struct s626_private *devpriv = dev->private;
 	uint16_t crb;
 
 	/* Cache writeable CRB register image. */
-	crb = debi_read(dev, k->my_crb) & ~CRBMSK_INTCTRL;
+	crb = s626_debi_read(dev, k->my_crb) & ~CRBMSK_INTCTRL;
 
 	/* Reset any pending counter overflow or index captures. */
-	debi_write(dev, k->my_crb,
-		   (uint16_t)(crb | CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B));
+	s626_debi_write(dev, k->my_crb,
+			(crb | CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B));
 
 	/* Program counter interrupt source. */
-	debi_write(dev, k->my_crb,
-		   (uint16_t)((crb & ~CRBMSK_INTSRC_B) |
-			      (int_source << CRBBIT_INTSRC_B)));
+	s626_debi_write(dev, k->my_crb,
+			((crb & ~CRBMSK_INTSRC_B) |
+			 (int_source << CRBBIT_INTSRC_B)));
 
 	/* Update MISC2 interrupt enable mask. */
 	devpriv->counter_int_enabs =
@@ -1085,31 +1096,31 @@ static void set_int_src_b(struct comedi_device *dev,
 		k->my_event_bits[int_source];
 }
 
-static uint16_t get_int_src_a(struct comedi_device *dev,
-			      const struct s626_enc_info *k)
+static uint16_t s626_get_int_src_a(struct comedi_device *dev,
+				   const struct s626_enc_info *k)
 {
-	return (debi_read(dev, k->my_cra) >> CRABIT_INTSRC_A) & 3;
+	return (s626_debi_read(dev, k->my_cra) >> CRABIT_INTSRC_A) & 3;
 }
 
-static uint16_t get_int_src_b(struct comedi_device *dev,
-			      const struct s626_enc_info *k)
+static uint16_t s626_get_int_src_b(struct comedi_device *dev,
+				   const struct s626_enc_info *k)
 {
-	return (debi_read(dev, k->my_crb) >> CRBBIT_INTSRC_B) & 3;
+	return (s626_debi_read(dev, k->my_crb) >> CRBBIT_INTSRC_B) & 3;
 }
 
 #ifdef unused
 /*
  * Return/set the clock multiplier.
  */
-static void set_clk_mult(struct comedi_device *dev,
-			 const struct s626_enc_info *k, uint16_t value)
+static void s626_set_clk_mult(struct comedi_device *dev,
+			      const struct s626_enc_info *k, uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKMULT) |
 			    (value << STDBIT_CLKMULT)), false);
 }
 
-static uint16_t get_clk_mult(struct comedi_device *dev,
-			     const struct s626_enc_info *k)
+static uint16_t s626_get_clk_mult(struct comedi_device *dev,
+				  const struct s626_enc_info *k)
 {
 	return (k->get_mode(dev, k) >> STDBIT_CLKMULT) & 3;
 }
@@ -1117,15 +1128,15 @@ static uint16_t get_clk_mult(struct comedi_device *dev,
 /*
  * Return/set the clock polarity.
  */
-static void set_clk_pol(struct comedi_device *dev,
-			const struct s626_enc_info *k, uint16_t value)
+static void s626_set_clk_pol(struct comedi_device *dev,
+			     const struct s626_enc_info *k, uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKPOL) |
 			    (value << STDBIT_CLKPOL)), false);
 }
 
-static uint16_t get_clk_pol(struct comedi_device *dev,
-			    const struct s626_enc_info *k)
+static uint16_t s626_get_clk_pol(struct comedi_device *dev,
+				 const struct s626_enc_info *k)
 {
 	return (k->get_mode(dev, k) >> STDBIT_CLKPOL) & 1;
 }
@@ -1133,15 +1144,15 @@ static uint16_t get_clk_pol(struct comedi_device *dev,
 /*
  * Return/set the clock source.
  */
-static void set_clk_src(struct comedi_device *dev,
-			const struct s626_enc_info *k, uint16_t value)
+static void s626_set_clk_src(struct comedi_device *dev,
+			     const struct s626_enc_info *k, uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKSRC) |
 			    (value << STDBIT_CLKSRC)), false);
 }
 
-static uint16_t get_clk_src(struct comedi_device *dev,
-			    const struct s626_enc_info *k)
+static uint16_t s626_get_clk_src(struct comedi_device *dev,
+				 const struct s626_enc_info *k)
 {
 	return (k->get_mode(dev, k) >> STDBIT_CLKSRC) & 3;
 }
@@ -1149,15 +1160,15 @@ static uint16_t get_clk_src(struct comedi_device *dev,
 /*
  * Return/set the index polarity.
  */
-static void set_index_pol(struct comedi_device *dev,
-			  const struct s626_enc_info *k, uint16_t value)
+static void s626_set_index_pol(struct comedi_device *dev,
+			       const struct s626_enc_info *k, uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_INDXPOL) |
 			    ((value != 0) << STDBIT_INDXPOL)), false);
 }
 
-static uint16_t get_index_pol(struct comedi_device *dev,
-			      const struct s626_enc_info *k)
+static uint16_t s626_get_index_pol(struct comedi_device *dev,
+				   const struct s626_enc_info *k)
 {
 	return (k->get_mode(dev, k) >> STDBIT_INDXPOL) & 1;
 }
@@ -1165,15 +1176,15 @@ static uint16_t get_index_pol(struct comedi_device *dev,
 /*
  * Return/set the index source.
  */
-static void set_index_src(struct comedi_device *dev,
-			  const struct s626_enc_info *k, uint16_t value)
+static void s626_set_index_src(struct comedi_device *dev,
+			       const struct s626_enc_info *k, uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_INDXSRC) |
 			    ((value != 0) << STDBIT_INDXSRC)), false);
 }
 
-static uint16_t get_index_src(struct comedi_device *dev,
-			      const struct s626_enc_info *k)
+static uint16_t s626_get_index_src(struct comedi_device *dev,
+				   const struct s626_enc_info *k)
 {
 	return (k->get_mode(dev, k) >> STDBIT_INDXSRC) & 1;
 }
@@ -1182,115 +1193,115 @@ static uint16_t get_index_src(struct comedi_device *dev,
 /*
  * Generate an index pulse.
  */
-static void pulse_index_a(struct comedi_device *dev,
-			  const struct s626_enc_info *k)
+static void s626_pulse_index_a(struct comedi_device *dev,
+			       const struct s626_enc_info *k)
 {
 	uint16_t cra;
 
-	cra = debi_read(dev, k->my_cra);
+	cra = s626_debi_read(dev, k->my_cra);
 	/* Pulse index. */
-	debi_write(dev, k->my_cra, (cra ^ CRAMSK_INDXPOL_A));
-	debi_write(dev, k->my_cra, cra);
+	s626_debi_write(dev, k->my_cra, (cra ^ CRAMSK_INDXPOL_A));
+	s626_debi_write(dev, k->my_cra, cra);
 }
 
-static void pulse_index_b(struct comedi_device *dev,
-			  const struct s626_enc_info *k)
+static void s626_pulse_index_b(struct comedi_device *dev,
+			       const struct s626_enc_info *k)
 {
 	uint16_t crb;
 
-	crb = debi_read(dev, k->my_crb) & ~CRBMSK_INTCTRL;
+	crb = s626_debi_read(dev, k->my_crb) & ~CRBMSK_INTCTRL;
 	/* Pulse index. */
-	debi_write(dev, k->my_crb, (crb ^ CRBMSK_INDXPOL_B));
-	debi_write(dev, k->my_crb, crb);
+	s626_debi_write(dev, k->my_crb, (crb ^ CRBMSK_INDXPOL_B));
+	s626_debi_write(dev, k->my_crb, crb);
 }
 
 static const struct s626_enc_info s626_enc_chan_info[] = {
 	{
-		.get_enable		= get_enable_a,
-		.get_int_src		= get_int_src_a,
-		.get_load_trig		= get_load_trig_a,
-		.get_mode		= get_mode_a,
-		.pulse_index		= pulse_index_a,
-		.set_enable		= set_enable_a,
-		.set_int_src		= set_int_src_a,
-		.set_load_trig		= set_load_trig_a,
-		.set_mode		= set_mode_a,
-		.reset_cap_flags	= reset_cap_flags_a,
+		.get_enable		= s626_get_enable_a,
+		.get_int_src		= s626_get_int_src_a,
+		.get_load_trig		= s626_get_load_trig_a,
+		.get_mode		= s626_get_mode_a,
+		.pulse_index		= s626_pulse_index_a,
+		.set_enable		= s626_set_enable_a,
+		.set_int_src		= s626_set_int_src_a,
+		.set_load_trig		= s626_set_load_trig_a,
+		.set_mode		= s626_set_mode_a,
+		.reset_cap_flags	= s626_reset_cap_flags_a,
 		.my_cra			= LP_CR0A,
 		.my_crb			= LP_CR0B,
 		.my_latch_lsw		= LP_CNTR0ALSW,
 		.my_event_bits		= EVBITS(0),
 	}, {
-		.get_enable		= get_enable_a,
-		.get_int_src		= get_int_src_a,
-		.get_load_trig		= get_load_trig_a,
-		.get_mode		= get_mode_a,
-		.pulse_index		= pulse_index_a,
-		.set_enable		= set_enable_a,
-		.set_int_src		= set_int_src_a,
-		.set_load_trig		= set_load_trig_a,
-		.set_mode		= set_mode_a,
-		.reset_cap_flags	= reset_cap_flags_a,
+		.get_enable		= s626_get_enable_a,
+		.get_int_src		= s626_get_int_src_a,
+		.get_load_trig		= s626_get_load_trig_a,
+		.get_mode		= s626_get_mode_a,
+		.pulse_index		= s626_pulse_index_a,
+		.set_enable		= s626_set_enable_a,
+		.set_int_src		= s626_set_int_src_a,
+		.set_load_trig		= s626_set_load_trig_a,
+		.set_mode		= s626_set_mode_a,
+		.reset_cap_flags	= s626_reset_cap_flags_a,
 		.my_cra			= LP_CR1A,
 		.my_crb			= LP_CR1B,
 		.my_latch_lsw		= LP_CNTR1ALSW,
 		.my_event_bits		= EVBITS(1),
 	}, {
-		.get_enable		= get_enable_a,
-		.get_int_src		= get_int_src_a,
-		.get_load_trig		= get_load_trig_a,
-		.get_mode		= get_mode_a,
-		.pulse_index		= pulse_index_a,
-		.set_enable		= set_enable_a,
-		.set_int_src		= set_int_src_a,
-		.set_load_trig		= set_load_trig_a,
-		.set_mode		= set_mode_a,
-		.reset_cap_flags	= reset_cap_flags_a,
+		.get_enable		= s626_get_enable_a,
+		.get_int_src		= s626_get_int_src_a,
+		.get_load_trig		= s626_get_load_trig_a,
+		.get_mode		= s626_get_mode_a,
+		.pulse_index		= s626_pulse_index_a,
+		.set_enable		= s626_set_enable_a,
+		.set_int_src		= s626_set_int_src_a,
+		.set_load_trig		= s626_set_load_trig_a,
+		.set_mode		= s626_set_mode_a,
+		.reset_cap_flags	= s626_reset_cap_flags_a,
 		.my_cra			= LP_CR2A,
 		.my_crb			= LP_CR2B,
 		.my_latch_lsw		= LP_CNTR2ALSW,
 		.my_event_bits		= EVBITS(2),
 	}, {
-		.get_enable		= get_enable_b,
-		.get_int_src		= get_int_src_b,
-		.get_load_trig		= get_load_trig_b,
-		.get_mode		= get_mode_b,
-		.pulse_index		= pulse_index_b,
-		.set_enable		= set_enable_b,
-		.set_int_src		= set_int_src_b,
-		.set_load_trig		= set_load_trig_b,
-		.set_mode		= set_mode_b,
-		.reset_cap_flags	= reset_cap_flags_b,
+		.get_enable		= s626_get_enable_b,
+		.get_int_src		= s626_get_int_src_b,
+		.get_load_trig		= s626_get_load_trig_b,
+		.get_mode		= s626_get_mode_b,
+		.pulse_index		= s626_pulse_index_b,
+		.set_enable		= s626_set_enable_b,
+		.set_int_src		= s626_set_int_src_b,
+		.set_load_trig		= s626_set_load_trig_b,
+		.set_mode		= s626_set_mode_b,
+		.reset_cap_flags	= s626_reset_cap_flags_b,
 		.my_cra			= LP_CR0A,
 		.my_crb			= LP_CR0B,
 		.my_latch_lsw		= LP_CNTR0BLSW,
 		.my_event_bits		= EVBITS(3),
 	}, {
-		.get_enable		= get_enable_b,
-		.get_int_src		= get_int_src_b,
-		.get_load_trig		= get_load_trig_b,
-		.get_mode		= get_mode_b,
-		.pulse_index		= pulse_index_b,
-		.set_enable		= set_enable_b,
-		.set_int_src		= set_int_src_b,
-		.set_load_trig		= set_load_trig_b,
-		.set_mode		= set_mode_b,
-		.reset_cap_flags	= reset_cap_flags_b,
+		.get_enable		= s626_get_enable_b,
+		.get_int_src		= s626_get_int_src_b,
+		.get_load_trig		= s626_get_load_trig_b,
+		.get_mode		= s626_get_mode_b,
+		.pulse_index		= s626_pulse_index_b,
+		.set_enable		= s626_set_enable_b,
+		.set_int_src		= s626_set_int_src_b,
+		.set_load_trig		= s626_set_load_trig_b,
+		.set_mode		= s626_set_mode_b,
+		.reset_cap_flags	= s626_reset_cap_flags_b,
 		.my_cra			= LP_CR1A,
 		.my_crb			= LP_CR1B,
 		.my_latch_lsw		= LP_CNTR1BLSW,
 		.my_event_bits		= EVBITS(4),
 	}, {
-		.get_enable		= get_enable_b,
-		.get_int_src		= get_int_src_b,
-		.get_load_trig		= get_load_trig_b,
-		.get_mode		= get_mode_b,
-		.pulse_index		= pulse_index_b,
-		.set_enable		= set_enable_b,
-		.set_int_src		= set_int_src_b,
-		.set_load_trig		= set_load_trig_b,
-		.set_mode		= set_mode_b,
-		.reset_cap_flags	= reset_cap_flags_b,
+		.get_enable		= s626_get_enable_b,
+		.get_int_src		= s626_get_int_src_b,
+		.get_load_trig		= s626_get_load_trig_b,
+		.get_mode		= s626_get_mode_b,
+		.pulse_index		= s626_pulse_index_b,
+		.set_enable		= s626_set_enable_b,
+		.set_int_src		= s626_set_int_src_b,
+		.set_load_trig		= s626_set_load_trig_b,
+		.set_mode		= s626_set_mode_b,
+		.reset_cap_flags	= s626_reset_cap_flags_b,
 		.my_cra			= LP_CR2A,
 		.my_crb			= LP_CR2B,
 		.my_latch_lsw		= LP_CNTR2BLSW,
@@ -1318,19 +1329,19 @@ static int s626_dio_set_irq(struct comedi_device *dev, unsigned int chan)
 	unsigned int status;
 
 	/* set channel to capture positive edge */
-	status = debi_read(dev, LP_RDEDGSEL(group));
-	debi_write(dev, LP_WREDGSEL(group), mask | status);
+	status = s626_debi_read(dev, LP_RDEDGSEL(group));
+	s626_debi_write(dev, LP_WREDGSEL(group), mask | status);
 
 	/* enable interrupt on selected channel */
-	status = debi_read(dev, LP_RDINTSEL(group));
-	debi_write(dev, LP_WRINTSEL(group), mask | status);
+	status = s626_debi_read(dev, LP_RDINTSEL(group));
+	s626_debi_write(dev, LP_WRINTSEL(group), mask | status);
 
 	/* enable edge capture write command */
-	debi_write(dev, LP_MISC1, MISC1_EDCAP);
+	s626_debi_write(dev, LP_MISC1, MISC1_EDCAP);
 
 	/* enable edge capture on selected channel */
-	status = debi_read(dev, LP_RDCAPSEL(group));
-	debi_write(dev, LP_WRCAPSEL(group), mask | status);
+	status = s626_debi_read(dev, LP_RDCAPSEL(group));
+	s626_debi_write(dev, LP_WRCAPSEL(group), mask | status);
 
 	return 0;
 }
@@ -1339,10 +1350,10 @@ static int s626_dio_reset_irq(struct comedi_device *dev, unsigned int group,
 			      unsigned int mask)
 {
 	/* disable edge capture write command */
-	debi_write(dev, LP_MISC1, MISC1_NOEDCAP);
+	s626_debi_write(dev, LP_MISC1, MISC1_NOEDCAP);
 
 	/* enable edge capture on selected channel */
-	debi_write(dev, LP_WRCAPSEL(group), mask);
+	s626_debi_write(dev, LP_WRCAPSEL(group), mask);
 
 	return 0;
 }
@@ -1352,17 +1363,17 @@ static int s626_dio_clear_irq(struct comedi_device *dev)
 	unsigned int group;
 
 	/* disable edge capture write command */
-	debi_write(dev, LP_MISC1, MISC1_NOEDCAP);
+	s626_debi_write(dev, LP_MISC1, MISC1_NOEDCAP);
 
 	/* clear all dio pending events and interrupt */
 	for (group = 0; group < S626_DIO_BANKS; group++)
-		debi_write(dev, LP_WRCAPSEL(group), 0xffff);
+		s626_debi_write(dev, LP_WRCAPSEL(group), 0xffff);
 
 	return 0;
 }
 
-static void handle_dio_interrupt(struct comedi_device *dev,
-				 uint16_t irqbit, uint8_t group)
+static void s626_handle_dio_interrupt(struct comedi_device *dev,
+				      uint16_t irqbit, uint8_t group)
 {
 	struct s626_private *devpriv = dev->private;
 	struct comedi_subdevice *s = dev->read_subdev;
@@ -1411,7 +1422,7 @@ static void handle_dio_interrupt(struct comedi_device *dev,
 	}
 }
 
-static void check_dio_interrupts(struct comedi_device *dev)
+static void s626_check_dio_interrupts(struct comedi_device *dev)
 {
 	uint16_t irqbit;
 	uint8_t group;
@@ -1419,17 +1430,17 @@ static void check_dio_interrupts(struct comedi_device *dev)
 	for (group = 0; group < S626_DIO_BANKS; group++) {
 		irqbit = 0;
 		/* read interrupt type */
-		irqbit = debi_read(dev, LP_RDCAPFLG(group));
+		irqbit = s626_debi_read(dev, LP_RDCAPFLG(group));
 
 		/* check if interrupt is generated from dio channels */
 		if (irqbit) {
-			handle_dio_interrupt(dev, irqbit, group);
+			s626_handle_dio_interrupt(dev, irqbit, group);
 			return;
 		}
 	}
 }
 
-static void check_counter_interrupts(struct comedi_device *dev)
+static void s626_check_counter_interrupts(struct comedi_device *dev)
 {
 	struct s626_private *devpriv = dev->private;
 	struct comedi_subdevice *s = dev->read_subdev;
@@ -1439,7 +1450,7 @@ static void check_counter_interrupts(struct comedi_device *dev)
 	uint16_t irqbit;
 
 	/* read interrupt type */
-	irqbit = debi_read(dev, LP_RDMISC2);
+	irqbit = s626_debi_read(dev, LP_RDMISC2);
 
 	/* check interrupt on counters */
 	if (irqbit & IRQ_COINT1A) {
@@ -1502,7 +1513,7 @@ static void check_counter_interrupts(struct comedi_device *dev)
 	}
 }
 
-static bool handle_eos_interrupt(struct comedi_device *dev)
+static bool s626_handle_eos_interrupt(struct comedi_device *dev)
 {
 	struct s626_private *devpriv = dev->private;
 	struct comedi_subdevice *s = dev->read_subdev;
@@ -1586,13 +1597,13 @@ static irqreturn_t s626_irq_handler(int irq, void *d)
 
 	switch (irqtype) {
 	case IRQ_RPS1:	/* end_of_scan occurs */
-		if (handle_eos_interrupt(dev))
+		if (s626_handle_eos_interrupt(dev))
 			irqstatus = 0;
 		break;
 	case IRQ_GPIO3:	/* check dio and counter interrupt */
 		/* s626_dio_clear_irq(dev); */
-		check_dio_interrupts(dev);
-		check_counter_interrupts(dev);
+		s626_check_dio_interrupts(dev);
+		s626_check_counter_interrupts(dev);
 		break;
 	}
 
@@ -1606,7 +1617,7 @@ static irqreturn_t s626_irq_handler(int irq, void *d)
 /*
  * This function builds the RPS program for hardware driven acquisition.
  */
-static void reset_adc(struct comedi_device *dev, uint8_t *ppl)
+static void s626_reset_adc(struct comedi_device *dev, uint8_t *ppl)
 {
 	struct s626_private *devpriv = dev->private;
 	uint32_t *rps;
@@ -1856,10 +1867,10 @@ static int s626_ai_insn_read(struct comedi_device *dev,
 		adc_spec = (chan << 8) | (GSEL_BIPOLAR10V);
 
 	/* Switch ADC analog gain. */
-	debi_write(dev, LP_GSEL, adc_spec);	/* Set gain. */
+	s626_debi_write(dev, LP_GSEL, adc_spec);	/* Set gain. */
 
 	/* Select ADC analog input channel. */
-	debi_write(dev, LP_ISEL, adc_spec);	/* Select channel. */
+	s626_debi_write(dev, LP_ISEL, adc_spec);	/* Select channel. */
 
 	for (n = 0; n < insn->n; n++) {
 		/* Delay 10 microseconds for analog input settling. */
@@ -2010,7 +2021,7 @@ static void s626_timer_load(struct comedi_device *dev,
 	k->set_mode(dev, k, setup, false);
 
 	/* Set the preload register */
-	preload(dev, k, tick);
+	s626_preload(dev, k, tick);
 
 	/*
 	 * Software index pulse forces the preload register to load
@@ -2025,7 +2036,7 @@ static void s626_timer_load(struct comedi_device *dev,
 	/* set interrupt on overflow */
 	k->set_int_src(dev, k, INTSRC_OVER);
 
-	set_latch_source(dev, k, value_latchsrc);
+	s626_set_latch_source(dev, k, value_latchsrc);
 	/* k->set_enable(dev, k, (uint16_t)(enab != 0)); */
 }
 
@@ -2130,7 +2141,7 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		break;
 	}
 
-	reset_adc(dev, ppl);
+	s626_reset_adc(dev, ppl);
 
 	switch (cmd->start_src) {
 	case TRIG_NOW:
@@ -2291,7 +2302,7 @@ static int s626_ao_winsn(struct comedi_device *dev, struct comedi_subdevice *s,
 		devpriv->ao_readback[CR_CHAN(insn->chanspec)] = data[i];
 		dacdata -= (0x1fff);
 
-		set_dac(dev, chan, dacdata);
+		s626_set_dac(dev, chan, dacdata);
 	}
 
 	return i;
@@ -2322,18 +2333,18 @@ static void s626_dio_init(struct comedi_device *dev)
 	uint16_t group;
 
 	/* Prepare to treat writes to WRCapSel as capture disables. */
-	debi_write(dev, LP_MISC1, MISC1_NOEDCAP);
+	s626_debi_write(dev, LP_MISC1, MISC1_NOEDCAP);
 
 	/* For each group of sixteen channels ... */
 	for (group = 0; group < S626_DIO_BANKS; group++) {
 		/* Disable all interrupts */
-		debi_write(dev, LP_WRINTSEL(group), 0);
+		s626_debi_write(dev, LP_WRINTSEL(group), 0);
 		/* Disable all event captures */
-		debi_write(dev, LP_WRCAPSEL(group), 0xffff);
+		s626_debi_write(dev, LP_WRCAPSEL(group), 0xffff);
 		/* Init all DIOs to default edge polarity */
-		debi_write(dev, LP_WREDGSEL(group), 0);
+		s626_debi_write(dev, LP_WREDGSEL(group), 0);
 		/* Program all outputs to inactive state */
-		debi_write(dev, LP_WRDOUT(group), 0);
+		s626_debi_write(dev, LP_WRDOUT(group), 0);
 	}
 }
 
@@ -2345,9 +2356,9 @@ static int s626_dio_insn_bits(struct comedi_device *dev,
 	unsigned long group = (unsigned long)s->private;
 
 	if (comedi_dio_update_state(s, data))
-		debi_write(dev, LP_WRDOUT(group), s->state);
+		s626_debi_write(dev, LP_WRDOUT(group), s->state);
 
-	data[1] = debi_read(dev, LP_RDDIN(group));
+	data[1] = s626_debi_read(dev, LP_RDDIN(group));
 
 	return insn->n;
 }
@@ -2364,7 +2375,7 @@ static int s626_dio_insn_config(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
-	debi_write(dev, LP_WRDOUT(group), s->io_bits);
+	s626_debi_write(dev, LP_WRDOUT(group), s->io_bits);
 
 	return insn->n;
 }
@@ -2399,9 +2410,9 @@ static int s626_enc_insn_config(struct comedi_device *dev,
 	/* (data==NULL) ? (Preloadvalue=0) : (Preloadvalue=data[0]); */
 
 	k->set_mode(dev, k, setup, true);
-	preload(dev, k, data[0]);
+	s626_preload(dev, k, data[0]);
 	k->pulse_index(dev, k);
-	set_latch_source(dev, k, value_latchsrc);
+	s626_set_latch_source(dev, k, value_latchsrc);
 	k->set_enable(dev, k, (enab != 0));
 
 	return insn->n;
@@ -2416,7 +2427,7 @@ static int s626_enc_insn_read(struct comedi_device *dev,
 		&s626_enc_chan_info[CR_CHAN(insn->chanspec)];
 
 	for (n = 0; n < insn->n; n++)
-		data[n] = read_latch(dev, k);
+		data[n] = s626_read_latch(dev, k);
 
 	return n;
 }
@@ -2429,7 +2440,7 @@ static int s626_enc_insn_write(struct comedi_device *dev,
 		&s626_enc_chan_info[CR_CHAN(insn->chanspec)];
 
 	/* Set the preload register */
-	preload(dev, k, data[0]);
+	s626_preload(dev, k, data[0]);
 
 	/*
 	 * Software index pulse forces the preload register to load
@@ -2442,15 +2453,15 @@ static int s626_enc_insn_write(struct comedi_device *dev,
 	return 1;
 }
 
-static void write_misc2(struct comedi_device *dev, uint16_t new_image)
+static void s626_write_misc2(struct comedi_device *dev, uint16_t new_image)
 {
-	debi_write(dev, LP_MISC1, MISC1_WENABLE); /* Enable writes to MISC2. */
-	debi_write(dev, LP_WRMISC2, new_image);	/* Write new image to MISC2. */
-	debi_write(dev, LP_MISC1, MISC1_WDISABLE); /* Disable writes to MISC2 */
+	s626_debi_write(dev, LP_MISC1, MISC1_WENABLE);
+	s626_debi_write(dev, LP_WRMISC2, new_image);
+	s626_debi_write(dev, LP_MISC1, MISC1_WDISABLE);
 }
 
-static void close_dma_b(struct comedi_device *dev, struct s626_buffer_dma *pdma,
-			size_t bsize)
+static void s626_close_dma_b(struct comedi_device *dev,
+			     struct s626_buffer_dma *pdma, size_t bsize)
 {
 	struct pci_dev *pcidev = comedi_to_pci_dev(dev);
 	void *vbptr;
@@ -2469,7 +2480,7 @@ static void close_dma_b(struct comedi_device *dev, struct s626_buffer_dma *pdma,
 	}
 }
 
-static void counters_init(struct comedi_device *dev)
+static void s626_counters_init(struct comedi_device *dev)
 {
 	int chan;
 	const struct s626_enc_info *k;
@@ -2617,7 +2628,7 @@ static void s626_initialize(struct comedi_device *dev)
 
 		/* Create a simple polling list for analog input channel 0 */
 		poll_list = EOPL;
-		reset_adc(dev, &poll_list);
+		s626_reset_adc(dev, &poll_list);
 
 		/* Get initial ADC value */
 		s626_ai_rinsn(dev, dev->subdevices, NULL, data);
@@ -2715,8 +2726,8 @@ static void s626_initialize(struct comedi_device *dev)
 	 * SAA7146 audio channel does not always reset properly and
 	 * sometimes causes the first few TrimDAC writes to malfunction.
 	 */
-	load_trim_dacs(dev);
-	load_trim_dacs(dev);
+	s626_load_trim_dacs(dev);
+	s626_load_trim_dacs(dev);
 
 	/*
 	 * Manually init all gate array hardware in case this is a soft
@@ -2731,10 +2742,10 @@ static void s626_initialize(struct comedi_device *dev)
 	 * polarity images.
 	 */
 	for (chan = 0; chan < S626_DAC_CHANNELS; chan++)
-		set_dac(dev, chan, 0);
+		s626_set_dac(dev, chan, 0);
 
 	/* Init counters */
-	counters_init(dev);
+	s626_counters_init(dev);
 
 	/*
 	 * Without modifying the state of the Battery Backup enab, disable
@@ -2742,8 +2753,8 @@ static void s626_initialize(struct comedi_device *dev)
 	 * standard DIO (vs. counter overflow) mode, disable the battery
 	 * charger, and reset the watchdog interval selector to zero.
 	 */
-	write_misc2(dev, (uint16_t)(debi_read(dev, LP_RDMISC2) &
-				    MISC2_BATT_ENABLE));
+	s626_write_misc2(dev, (s626_debi_read(dev, LP_RDMISC2) &
+			       MISC2_BATT_ENABLE));
 
 	/* Initialize the digital I/O subsystem */
 	s626_dio_init(dev);
@@ -2890,14 +2901,14 @@ static void s626_detach(struct comedi_device *dev)
 			       devpriv->mmio + P_ISR);
 
 			/* Disable the watchdog timer and battery charger. */
-			write_misc2(dev, 0);
+			s626_write_misc2(dev, 0);
 
 			/* Close all interfaces on 7146 device */
 			writel(MC1_SHUTDOWN, devpriv->mmio + P_MC1);
 			writel(ACON1_BASE, devpriv->mmio + P_ACON1);
 
-			close_dma_b(dev, &devpriv->rps_buf, DMABUF_SIZE);
-			close_dma_b(dev, &devpriv->ana_buf, DMABUF_SIZE);
+			s626_close_dma_b(dev, &devpriv->rps_buf, DMABUF_SIZE);
+			s626_close_dma_b(dev, &devpriv->ana_buf, DMABUF_SIZE);
 		}
 
 		if (dev->irq)
-- 
cgit 


From 676921c9d2ea2bdfeb13a2ca18724e1005242874 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:41 +0100
Subject: staging: comedi: s626: prefix macros in s626.c

Prefix the macros defined in "s626.c" with `S626_`.  Macro `VECT0` is
unused, so remove it.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 75 +++++++++++++++++------------------
 1 file changed, 37 insertions(+), 38 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 38f129aa09d2..e8d615f83dee 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -145,15 +145,16 @@ struct s626_enc_info {
 };
 
 /* Counter overflow/index event flag masks for RDMISC2. */
-#define INDXMASK(C)	(1 << (((C) > 2) ? ((C) * 2 - 1) : ((C) * 2 +  4)))
-#define OVERMASK(C)	(1 << (((C) > 2) ? ((C) * 2 + 5) : ((C) * 2 + 10)))
-#define EVBITS(C)	{ 0, OVERMASK(C), INDXMASK(C), \
-			  OVERMASK(C) | INDXMASK(C) }
+#define S626_INDXMASK(C) (1 << (((C) > 2) ? ((C) * 2 - 1) : ((C) * 2 +  4)))
+#define S626_OVERMASK(C) (1 << (((C) > 2) ? ((C) * 2 + 5) : ((C) * 2 + 10)))
+#define S626_EVBITS(C)	{ 0, S626_OVERMASK(C), S626_INDXMASK(C), \
+			  S626_OVERMASK(C) | S626_INDXMASK(C) }
 
 /*
  * Translation table to map IntSrc into equivalent RDMISC2 event flag  bits.
  * static const uint16_t s626_event_bits[][4] =
- *     { EVBITS(0), EVBITS(1), EVBITS(2), EVBITS(3), EVBITS(4), EVBITS(5) };
+ *     { S626_EVBITS(0), S626_EVBITS(1), S626_EVBITS(2), S626_EVBITS(3),
+ *       S626_EVBITS(4), S626_EVBITS(5) };
  */
 
 /*
@@ -190,10 +191,10 @@ static bool s626_mc_test(struct comedi_device *dev,
 	return (val & cmd) ? true : false;
 }
 
-#define BUGFIX_STREG(REGADRS)   (REGADRS - 4)
+#define S626_BUGFIX_STREG(REGADRS)   ((REGADRS) - 4)
 
 /* Write a time slot control record to TSL2. */
-#define VECTPORT(VECTNUM)		(P_TSL2 + ((VECTNUM) << 2))
+#define S626_VECTPORT(VECTNUM)		(P_TSL2 + ((VECTNUM) << 2))
 
 static const struct comedi_lrange s626_range_table = {
 	2, {
@@ -341,10 +342,6 @@ static uint8_t s626_i2c_read(struct comedi_device *dev, uint8_t addr)
 
 /* ***********  DAC FUNCTIONS *********** */
 
-/* Slot 0 base settings. */
-#define VECT0	(XSD2 | RSD3 | SIB_A2)
-/* Slot 0 always shifts in  0xFF and store it to  FB_BUFFER2. */
-
 /* TrimDac LogicalChan-to-PhysicalChan mapping table. */
 static const uint8_t s626_trimchan[] = { 10, 9, 8, 3, 2, 7, 6, 1, 0, 5, 4 };
 
@@ -417,7 +414,7 @@ static void s626_send_dac(struct comedi_device *dev, uint32_t val)
 	 * will be shifted in and stored in FB_BUFFER2 for end-of-slot-list
 	 * detection.
 	 */
-	writel(XSD2 | RSD3 | SIB_A2, devpriv->mmio + VECTPORT(0));
+	writel(XSD2 | RSD3 | SIB_A2, devpriv->mmio + S626_VECTPORT(0));
 
 	/*
 	 * Wait for slot 1 to execute to ensure that the Packet will be
@@ -437,7 +434,7 @@ static void s626_send_dac(struct comedi_device *dev, uint32_t val)
 	 * buffer register.
 	 */
 	writel(XSD2 | XFIFO_2 | RSD2 | SIB_A2 | EOS,
-	       devpriv->mmio + VECTPORT(0));
+	       devpriv->mmio + S626_VECTPORT(0));
 
 	/* WAIT FOR THE TRANSACTION TO FINISH ----------------------- */
 
@@ -479,7 +476,7 @@ static void s626_send_dac(struct comedi_device *dev, uint32_t val)
 	 * In order to do this, we reprogram slot 0 so that it will shift in
 	 * SD3, which is driven only by a pull-up resistor.
 	 */
-	writel(RSD3 | SIB_A2 | EOS, devpriv->mmio + VECTPORT(0));
+	writel(RSD3 | SIB_A2 | EOS, devpriv->mmio + S626_VECTPORT(0));
 
 	/*
 	 * Wait for slot 0 to execute, at which time the TSL is setup for
@@ -530,13 +527,13 @@ static void s626_set_dac(struct comedi_device *dev, uint16_t chan,
 	/* Choose DAC chip select to be asserted */
 	ws_image = (chan & 2) ? WS1 : WS2;
 	/* Slot 2: Transmit high data byte to target DAC */
-	writel(XSD2 | XFIFO_1 | ws_image, devpriv->mmio + VECTPORT(2));
+	writel(XSD2 | XFIFO_1 | ws_image, devpriv->mmio + S626_VECTPORT(2));
 	/* Slot 3: Transmit low data byte to target DAC */
-	writel(XSD2 | XFIFO_0 | ws_image, devpriv->mmio + VECTPORT(3));
+	writel(XSD2 | XFIFO_0 | ws_image, devpriv->mmio + S626_VECTPORT(3));
 	/* Slot 4: Transmit to non-existent TrimDac channel to keep clock */
-	writel(XSD2 | XFIFO_3 | WS3, devpriv->mmio + VECTPORT(4));
+	writel(XSD2 | XFIFO_3 | WS3, devpriv->mmio + S626_VECTPORT(4));
 	/* Slot 5: running after writing target DAC's low data byte */
-	writel(XSD2 | XFIFO_2 | WS3 | EOS, devpriv->mmio + VECTPORT(5));
+	writel(XSD2 | XFIFO_2 | WS3 | EOS, devpriv->mmio + S626_VECTPORT(5));
 
 	/*
 	 * Construct and transmit target DAC's serial packet:
@@ -577,13 +574,13 @@ static void s626_write_trim_dac(struct comedi_device *dev, uint8_t logical_chan,
 	 */
 
 	/* Slot 2: Send high uint8_t to target TrimDac */
-	writel(XSD2 | XFIFO_1 | WS3, devpriv->mmio + VECTPORT(2));
+	writel(XSD2 | XFIFO_1 | WS3, devpriv->mmio + S626_VECTPORT(2));
 	/* Slot 3: Send low uint8_t to target TrimDac */
-	writel(XSD2 | XFIFO_0 | WS3, devpriv->mmio + VECTPORT(3));
+	writel(XSD2 | XFIFO_0 | WS3, devpriv->mmio + S626_VECTPORT(3));
 	/* Slot 4: Send NOP high uint8_t to DAC0 to keep clock running */
-	writel(XSD2 | XFIFO_3 | WS1, devpriv->mmio + VECTPORT(4));
+	writel(XSD2 | XFIFO_3 | WS1, devpriv->mmio + S626_VECTPORT(4));
 	/* Slot 5: Send NOP low  uint8_t to DAC0 */
-	writel(XSD2 | XFIFO_2 | WS1 | EOS, devpriv->mmio + VECTPORT(5));
+	writel(XSD2 | XFIFO_2 | WS1 | EOS, devpriv->mmio + S626_VECTPORT(5));
 
 	/*
 	 * Construct and transmit target DAC's serial packet:
@@ -1230,7 +1227,7 @@ static const struct s626_enc_info s626_enc_chan_info[] = {
 		.my_cra			= LP_CR0A,
 		.my_crb			= LP_CR0B,
 		.my_latch_lsw		= LP_CNTR0ALSW,
-		.my_event_bits		= EVBITS(0),
+		.my_event_bits		= S626_EVBITS(0),
 	}, {
 		.get_enable		= s626_get_enable_a,
 		.get_int_src		= s626_get_int_src_a,
@@ -1245,7 +1242,7 @@ static const struct s626_enc_info s626_enc_chan_info[] = {
 		.my_cra			= LP_CR1A,
 		.my_crb			= LP_CR1B,
 		.my_latch_lsw		= LP_CNTR1ALSW,
-		.my_event_bits		= EVBITS(1),
+		.my_event_bits		= S626_EVBITS(1),
 	}, {
 		.get_enable		= s626_get_enable_a,
 		.get_int_src		= s626_get_int_src_a,
@@ -1260,7 +1257,7 @@ static const struct s626_enc_info s626_enc_chan_info[] = {
 		.my_cra			= LP_CR2A,
 		.my_crb			= LP_CR2B,
 		.my_latch_lsw		= LP_CNTR2ALSW,
-		.my_event_bits		= EVBITS(2),
+		.my_event_bits		= S626_EVBITS(2),
 	}, {
 		.get_enable		= s626_get_enable_b,
 		.get_int_src		= s626_get_int_src_b,
@@ -1275,7 +1272,7 @@ static const struct s626_enc_info s626_enc_chan_info[] = {
 		.my_cra			= LP_CR0A,
 		.my_crb			= LP_CR0B,
 		.my_latch_lsw		= LP_CNTR0BLSW,
-		.my_event_bits		= EVBITS(3),
+		.my_event_bits		= S626_EVBITS(3),
 	}, {
 		.get_enable		= s626_get_enable_b,
 		.get_int_src		= s626_get_int_src_b,
@@ -1290,7 +1287,7 @@ static const struct s626_enc_info s626_enc_chan_info[] = {
 		.my_cra			= LP_CR1A,
 		.my_crb			= LP_CR1B,
 		.my_latch_lsw		= LP_CNTR1BLSW,
-		.my_event_bits		= EVBITS(4),
+		.my_event_bits		= S626_EVBITS(4),
 	}, {
 		.get_enable		= s626_get_enable_b,
 		.get_int_src		= s626_get_int_src_b,
@@ -1305,7 +1302,7 @@ static const struct s626_enc_info s626_enc_chan_info[] = {
 		.my_cra			= LP_CR2A,
 		.my_crb			= LP_CR2B,
 		.my_latch_lsw		= LP_CNTR2BLSW,
-		.my_event_bits		= EVBITS(5),
+		.my_event_bits		= S626_EVBITS(5),
 	},
 };
 
@@ -1746,7 +1743,7 @@ static void s626_reset_adc(struct comedi_device *dev, uint8_t *ppl)
 		*rps++ = RPS_PAUSE | RPS_GPIO2;	/* Wait for ADC done. */
 
 		/* Transfer ADC data from FB BUFFER 1 register to DMA buffer. */
-		*rps++ = RPS_STREG | (BUGFIX_STREG(P_FB_BUFFER1) >> 2);
+		*rps++ = RPS_STREG | (S626_BUGFIX_STREG(P_FB_BUFFER1) >> 2);
 		*rps++ = (uint32_t)devpriv->ana_buf.physical_base +
 			 (devpriv->adc_items << 2);
 
@@ -1789,7 +1786,7 @@ static void s626_reset_adc(struct comedi_device *dev, uint8_t *ppl)
 	*rps++ = RPS_PAUSE | RPS_GPIO2;	/* Wait for ADC done. */
 
 	/* Transfer final ADC data from FB BUFFER 1 register to DMA buffer. */
-	*rps++ = RPS_STREG | (BUGFIX_STREG(P_FB_BUFFER1) >> 2);
+	*rps++ = RPS_STREG | (S626_BUGFIX_STREG(P_FB_BUFFER1) >> 2);
 	*rps++ = (uint32_t)devpriv->ana_buf.physical_base +
 		 (devpriv->adc_items << 2);
 
@@ -2211,14 +2208,14 @@ static int s626_ai_cmdtest(struct comedi_device *dev,
 	if (cmd->convert_src == TRIG_EXT)
 		err |= cfc_check_trigger_arg_max(&cmd->convert_arg, 39);
 
-#define MAX_SPEED	200000	/* in nanoseconds */
-#define MIN_SPEED	2000000000	/* in nanoseconds */
+#define S626_MAX_SPEED	200000	/* in nanoseconds */
+#define S626_MIN_SPEED	2000000000	/* in nanoseconds */
 
 	if (cmd->scan_begin_src == TRIG_TIMER) {
 		err |= cfc_check_trigger_arg_min(&cmd->scan_begin_arg,
-						 MAX_SPEED);
+						 S626_MAX_SPEED);
 		err |= cfc_check_trigger_arg_max(&cmd->scan_begin_arg,
-						 MIN_SPEED);
+						 S626_MIN_SPEED);
 	} else {
 		/* external trigger */
 		/* should be level/edge, hi/lo specification here */
@@ -2226,8 +2223,10 @@ static int s626_ai_cmdtest(struct comedi_device *dev,
 		/* err |= cfc_check_trigger_arg_max(&cmd->scan_begin_arg, 9); */
 	}
 	if (cmd->convert_src == TRIG_TIMER) {
-		err |= cfc_check_trigger_arg_min(&cmd->convert_arg, MAX_SPEED);
-		err |= cfc_check_trigger_arg_max(&cmd->convert_arg, MIN_SPEED);
+		err |= cfc_check_trigger_arg_min(&cmd->convert_arg,
+						 S626_MAX_SPEED);
+		err |= cfc_check_trigger_arg_max(&cmd->convert_arg,
+						 S626_MIN_SPEED);
 	} else {
 		/* external trigger */
 		/* see above */
@@ -2704,7 +2703,7 @@ static void s626_initialize(struct comedi_device *dev)
 	 */
 
 	/* Slot 0: Trap TSL execution, shift 0xFF into FB_BUFFER2 */
-	writel(XSD2 | RSD3 | SIB_A2 | EOS, devpriv->mmio + VECTPORT(0));
+	writel(XSD2 | RSD3 | SIB_A2 | EOS, devpriv->mmio + S626_VECTPORT(0));
 
 	/*
 	 * Initialize slot 1, which is constant.  Slot 1 causes a
@@ -2716,7 +2715,7 @@ static void s626_initialize(struct comedi_device *dev)
 	 */
 
 	/* Slot 1: Fetch DWORD from Audio2's output FIFO */
-	writel(LF_A2, devpriv->mmio + VECTPORT(1));
+	writel(LF_A2, devpriv->mmio + S626_VECTPORT(1));
 
 	/* Start DAC's audio interface (TSL2) running */
 	writel(ACON1_DACSTART, devpriv->mmio + P_ACON1);
-- 
cgit 


From d8515652ef01afb323dbdd87499c2c950ec9d324 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Tue, 8 Oct 2013 19:06:42 +0100
Subject: staging: comedi: s626: prefix macros in s626.h

Prefix the names of all the macros defined in "s626.h" with `S626_`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 916 ++++++++++++++++++----------------
 drivers/staging/comedi/drivers/s626.h | 721 +++++++++++++-------------
 2 files changed, 842 insertions(+), 795 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index e8d615f83dee..a34e70757922 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -194,7 +194,7 @@ static bool s626_mc_test(struct comedi_device *dev,
 #define S626_BUGFIX_STREG(REGADRS)   ((REGADRS) - 4)
 
 /* Write a time slot control record to TSL2. */
-#define S626_VECTPORT(VECTNUM)		(P_TSL2 + ((VECTNUM) << 2))
+#define S626_VECTPORT(VECTNUM)		(S626_P_TSL2 + ((VECTNUM) << 2))
 
 static const struct comedi_lrange s626_range_table = {
 	2, {
@@ -211,17 +211,17 @@ static void s626_debi_transfer(struct comedi_device *dev)
 	struct s626_private *devpriv = dev->private;
 
 	/* Initiate upload of shadow RAM to DEBI control register */
-	s626_mc_enable(dev, MC2_UPLD_DEBI, P_MC2);
+	s626_mc_enable(dev, S626_MC2_UPLD_DEBI, S626_P_MC2);
 
 	/*
 	 * Wait for completion of upload from shadow RAM to
 	 * DEBI control register.
 	 */
-	while (!s626_mc_test(dev, MC2_UPLD_DEBI, P_MC2))
+	while (!s626_mc_test(dev, S626_MC2_UPLD_DEBI, S626_P_MC2))
 		;
 
 	/* Wait until DEBI transfer is done */
-	while (readl(devpriv->mmio + P_PSR) & PSR_DEBI_S)
+	while (readl(devpriv->mmio + S626_P_PSR) & S626_PSR_DEBI_S)
 		;
 }
 
@@ -233,12 +233,12 @@ static uint16_t s626_debi_read(struct comedi_device *dev, uint16_t addr)
 	struct s626_private *devpriv = dev->private;
 
 	/* Set up DEBI control register value in shadow RAM */
-	writel(DEBI_CMD_RDWORD | addr, devpriv->mmio + P_DEBICMD);
+	writel(S626_DEBI_CMD_RDWORD | addr, devpriv->mmio + S626_P_DEBICMD);
 
 	/*  Execute the DEBI transfer. */
 	s626_debi_transfer(dev);
 
-	return readl(devpriv->mmio + P_DEBIAD);
+	return readl(devpriv->mmio + S626_P_DEBIAD);
 }
 
 /*
@@ -250,8 +250,8 @@ static void s626_debi_write(struct comedi_device *dev, uint16_t addr,
 	struct s626_private *devpriv = dev->private;
 
 	/* Set up DEBI control register value in shadow RAM */
-	writel(DEBI_CMD_WRWORD | addr, devpriv->mmio + P_DEBICMD);
-	writel(wdata, devpriv->mmio + P_DEBIAD);
+	writel(S626_DEBI_CMD_WRWORD | addr, devpriv->mmio + S626_P_DEBICMD);
+	writel(wdata, devpriv->mmio + S626_P_DEBIAD);
 
 	/*  Execute the DEBI transfer. */
 	s626_debi_transfer(dev);
@@ -269,14 +269,14 @@ static void s626_debi_replace(struct comedi_device *dev, unsigned int addr,
 	unsigned int val;
 
 	addr &= 0xffff;
-	writel(DEBI_CMD_RDWORD | addr, devpriv->mmio + P_DEBICMD);
+	writel(S626_DEBI_CMD_RDWORD | addr, devpriv->mmio + S626_P_DEBICMD);
 	s626_debi_transfer(dev);
 
-	writel(DEBI_CMD_WRWORD | addr, devpriv->mmio + P_DEBICMD);
-	val = readl(devpriv->mmio + P_DEBIAD);
+	writel(S626_DEBI_CMD_WRWORD | addr, devpriv->mmio + S626_P_DEBICMD);
+	val = readl(devpriv->mmio + S626_P_DEBIAD);
 	val &= mask;
 	val |= wdata;
-	writel(val & 0xffff, devpriv->mmio + P_DEBIAD);
+	writel(val & 0xffff, devpriv->mmio + S626_P_DEBIAD);
 	s626_debi_transfer(dev);
 }
 
@@ -288,23 +288,23 @@ static uint32_t s626_i2c_handshake(struct comedi_device *dev, uint32_t val)
 	unsigned int ctrl;
 
 	/* Write I2C command to I2C Transfer Control shadow register */
-	writel(val, devpriv->mmio + P_I2CCTRL);
+	writel(val, devpriv->mmio + S626_P_I2CCTRL);
 
 	/*
 	 * Upload I2C shadow registers into working registers and
 	 * wait for upload confirmation.
 	 */
-	s626_mc_enable(dev, MC2_UPLD_IIC, P_MC2);
-	while (!s626_mc_test(dev, MC2_UPLD_IIC, P_MC2))
+	s626_mc_enable(dev, S626_MC2_UPLD_IIC, S626_P_MC2);
+	while (!s626_mc_test(dev, S626_MC2_UPLD_IIC, S626_P_MC2))
 		;
 
 	/* Wait until I2C bus transfer is finished or an error occurs */
 	do {
-		ctrl = readl(devpriv->mmio + P_I2CCTRL);
-	} while ((ctrl & (I2C_BUSY | I2C_ERR)) == I2C_BUSY);
+		ctrl = readl(devpriv->mmio + S626_P_I2CCTRL);
+	} while ((ctrl & (S626_I2C_BUSY | S626_I2C_ERR)) == S626_I2C_BUSY);
 
 	/* Return non-zero if I2C error occurred */
-	return ctrl & I2C_ERR;
+	return ctrl & S626_I2C_ERR;
 }
 
 /* Read uint8_t from EEPROM. */
@@ -318,9 +318,10 @@ static uint8_t s626_i2c_read(struct comedi_device *dev, uint8_t addr)
 	 *  Byte1 = EEPROM internal target address.
 	 *  Byte0 = Not sent.
 	 */
-	if (s626_i2c_handshake(dev, I2C_B2(I2C_ATTRSTART, devpriv->i2c_adrs) |
-				    I2C_B1(I2C_ATTRSTOP, addr) |
-				    I2C_B0(I2C_ATTRNOP, 0)))
+	if (s626_i2c_handshake(dev, S626_I2C_B2(S626_I2C_ATTRSTART,
+						devpriv->i2c_adrs) |
+				    S626_I2C_B1(S626_I2C_ATTRSTOP, addr) |
+				    S626_I2C_B0(S626_I2C_ATTRNOP, 0)))
 		/* Abort function and declare error if handshake failed. */
 		return 0;
 
@@ -330,14 +331,14 @@ static uint8_t s626_i2c_read(struct comedi_device *dev, uint8_t addr)
 	 *  Byte1 receives uint8_t from EEPROM.
 	 *  Byte0 = Not sent.
 	 */
-	if (s626_i2c_handshake(dev, I2C_B2(I2C_ATTRSTART,
+	if (s626_i2c_handshake(dev, S626_I2C_B2(S626_I2C_ATTRSTART,
 					   (devpriv->i2c_adrs | 1)) |
-				    I2C_B1(I2C_ATTRSTOP, 0) |
-				    I2C_B0(I2C_ATTRNOP, 0)))
+				    S626_I2C_B1(S626_I2C_ATTRSTOP, 0) |
+				    S626_I2C_B0(S626_I2C_ATTRNOP, 0)))
 		/* Abort function and declare error if handshake failed. */
 		return 0;
 
-	return (readl(devpriv->mmio + P_I2CCTRL) >> 16) & 0xff;
+	return (readl(devpriv->mmio + S626_P_I2CCTRL) >> 16) & 0xff;
 }
 
 /* ***********  DAC FUNCTIONS *********** */
@@ -371,7 +372,7 @@ static void s626_send_dac(struct comedi_device *dev, uint32_t val)
 	 * the trailing edge of WS1/WS3 (which turns off the signals), thus
 	 * causing the signals to be inactive during the DAC write.
 	 */
-	s626_debi_write(dev, LP_DACPOL, devpriv->dacpol);
+	s626_debi_write(dev, S626_LP_DACPOL, devpriv->dacpol);
 
 	/* TRANSFER OUTPUT DWORD VALUE INTO A2'S OUTPUT FIFO ---------------- */
 
@@ -385,7 +386,7 @@ static void s626_send_dac(struct comedi_device *dev, uint32_t val)
 	 * then immediately terminate because the protection address is
 	 * reached upon transfer of the first DWORD value.
 	 */
-	s626_mc_enable(dev, MC1_A2OUT, P_MC1);
+	s626_mc_enable(dev, S626_MC1_A2OUT, S626_P_MC1);
 
 	/* While the DMA transfer is executing ... */
 
@@ -394,7 +395,7 @@ static void s626_send_dac(struct comedi_device *dev, uint32_t val)
 	 * other FIFO underflow/overflow flags). When set, this flag
 	 * will indicate that we have emerged from slot 0.
 	 */
-	writel(ISR_AFOU, devpriv->mmio + P_ISR);
+	writel(S626_ISR_AFOU, devpriv->mmio + S626_P_ISR);
 
 	/*
 	 * Wait for the DMA transfer to finish so that there will be data
@@ -403,7 +404,7 @@ static void s626_send_dac(struct comedi_device *dev, uint32_t val)
 	 * Done by polling the DMAC enable flag; this flag is automatically
 	 * cleared when the transfer has finished.
 	 */
-	while (readl(devpriv->mmio + P_MC1) & MC1_A2OUT)
+	while (readl(devpriv->mmio + S626_P_MC1) & S626_MC1_A2OUT)
 		;
 
 	/* START THE OUTPUT STREAM TO THE TARGET DAC -------------------- */
@@ -414,7 +415,8 @@ static void s626_send_dac(struct comedi_device *dev, uint32_t val)
 	 * will be shifted in and stored in FB_BUFFER2 for end-of-slot-list
 	 * detection.
 	 */
-	writel(XSD2 | RSD3 | SIB_A2, devpriv->mmio + S626_VECTPORT(0));
+	writel(S626_XSD2 | S626_RSD3 | S626_SIB_A2,
+	       devpriv->mmio + S626_VECTPORT(0));
 
 	/*
 	 * Wait for slot 1 to execute to ensure that the Packet will be
@@ -423,7 +425,7 @@ static void s626_send_dac(struct comedi_device *dev, uint32_t val)
 	 * finished transferring the DAC's data DWORD from the output FIFO
 	 * to the output buffer register.
 	 */
-	while (!(readl(devpriv->mmio + P_SSR) & SSR_AF2_OUT))
+	while (!(readl(devpriv->mmio + S626_P_SSR) & S626_SSR_AF2_OUT))
 		;
 
 	/*
@@ -433,7 +435,7 @@ static void s626_send_dac(struct comedi_device *dev, uint32_t val)
 	 * stored in the last byte to be shifted out of the FIFO's DWORD
 	 * buffer register.
 	 */
-	writel(XSD2 | XFIFO_2 | RSD2 | SIB_A2 | EOS,
+	writel(S626_XSD2 | S626_XFIFO_2 | S626_RSD2 | S626_SIB_A2 | S626_EOS,
 	       devpriv->mmio + S626_VECTPORT(0));
 
 	/* WAIT FOR THE TRANSACTION TO FINISH ----------------------- */
@@ -456,7 +458,7 @@ static void s626_send_dac(struct comedi_device *dev, uint32_t val)
 	 *    we test for the FB_BUFFER2 MSB contents to be equal to 0xFF.  If
 	 *    the TSL has not yet finished executing slot 5 ...
 	 */
-	if (readl(devpriv->mmio + P_FB_BUFFER2) & 0xff000000) {
+	if (readl(devpriv->mmio + S626_P_FB_BUFFER2) & 0xff000000) {
 		/*
 		 * The trap was set on time and we are still executing somewhere
 		 * in slots 2-5, so we now wait for slot 0 to execute and trap
@@ -464,7 +466,7 @@ static void s626_send_dac(struct comedi_device *dev, uint32_t val)
 		 * from 0xFF to 0x00, which slot 0 causes to happen by shifting
 		 * out/in on SD2 the 0x00 that is always referenced by slot 5.
 		 */
-		while (readl(devpriv->mmio + P_FB_BUFFER2) & 0xff000000)
+		while (readl(devpriv->mmio + S626_P_FB_BUFFER2) & 0xff000000)
 			;
 	}
 	/*
@@ -476,14 +478,15 @@ static void s626_send_dac(struct comedi_device *dev, uint32_t val)
 	 * In order to do this, we reprogram slot 0 so that it will shift in
 	 * SD3, which is driven only by a pull-up resistor.
 	 */
-	writel(RSD3 | SIB_A2 | EOS, devpriv->mmio + S626_VECTPORT(0));
+	writel(S626_RSD3 | S626_SIB_A2 | S626_EOS,
+	       devpriv->mmio + S626_VECTPORT(0));
 
 	/*
 	 * Wait for slot 0 to execute, at which time the TSL is setup for
 	 * the next DAC write.  This is detected when FB_BUFFER2 MSB changes
 	 * from 0x00 to 0xFF.
 	 */
-	while (!(readl(devpriv->mmio + P_FB_BUFFER2) & 0xff000000))
+	while (!(readl(devpriv->mmio + S626_P_FB_BUFFER2) & 0xff000000))
 		;
 }
 
@@ -525,15 +528,19 @@ static void s626_set_dac(struct comedi_device *dev, uint16_t chan,
 	 */
 
 	/* Choose DAC chip select to be asserted */
-	ws_image = (chan & 2) ? WS1 : WS2;
+	ws_image = (chan & 2) ? S626_WS1 : S626_WS2;
 	/* Slot 2: Transmit high data byte to target DAC */
-	writel(XSD2 | XFIFO_1 | ws_image, devpriv->mmio + S626_VECTPORT(2));
+	writel(S626_XSD2 | S626_XFIFO_1 | ws_image,
+	       devpriv->mmio + S626_VECTPORT(2));
 	/* Slot 3: Transmit low data byte to target DAC */
-	writel(XSD2 | XFIFO_0 | ws_image, devpriv->mmio + S626_VECTPORT(3));
+	writel(S626_XSD2 | S626_XFIFO_0 | ws_image,
+	       devpriv->mmio + S626_VECTPORT(3));
 	/* Slot 4: Transmit to non-existent TrimDac channel to keep clock */
-	writel(XSD2 | XFIFO_3 | WS3, devpriv->mmio + S626_VECTPORT(4));
+	writel(S626_XSD2 | S626_XFIFO_3 | S626_WS3,
+	       devpriv->mmio + S626_VECTPORT(4));
 	/* Slot 5: running after writing target DAC's low data byte */
-	writel(XSD2 | XFIFO_2 | WS3 | EOS, devpriv->mmio + S626_VECTPORT(5));
+	writel(S626_XSD2 | S626_XFIFO_2 | S626_WS3 | S626_EOS,
+	       devpriv->mmio + S626_VECTPORT(5));
 
 	/*
 	 * Construct and transmit target DAC's serial packet:
@@ -574,13 +581,17 @@ static void s626_write_trim_dac(struct comedi_device *dev, uint8_t logical_chan,
 	 */
 
 	/* Slot 2: Send high uint8_t to target TrimDac */
-	writel(XSD2 | XFIFO_1 | WS3, devpriv->mmio + S626_VECTPORT(2));
+	writel(S626_XSD2 | S626_XFIFO_1 | S626_WS3,
+	       devpriv->mmio + S626_VECTPORT(2));
 	/* Slot 3: Send low uint8_t to target TrimDac */
-	writel(XSD2 | XFIFO_0 | WS3, devpriv->mmio + S626_VECTPORT(3));
+	writel(S626_XSD2 | S626_XFIFO_0 | S626_WS3,
+	       devpriv->mmio + S626_VECTPORT(3));
 	/* Slot 4: Send NOP high uint8_t to DAC0 to keep clock running */
-	writel(XSD2 | XFIFO_3 | WS1, devpriv->mmio + S626_VECTPORT(4));
+	writel(S626_XSD2 | S626_XFIFO_3 | S626_WS1,
+	       devpriv->mmio + S626_VECTPORT(4));
 	/* Slot 5: Send NOP low  uint8_t to DAC0 */
-	writel(XSD2 | XFIFO_2 | WS1 | EOS, devpriv->mmio + S626_VECTPORT(5));
+	writel(S626_XSD2 | S626_XFIFO_2 | S626_WS1 | S626_EOS,
+	       devpriv->mmio + S626_VECTPORT(5));
 
 	/*
 	 * Construct and transmit target DAC's serial packet:
@@ -643,8 +654,9 @@ static uint32_t s626_read_latch(struct comedi_device *dev,
 static void s626_set_latch_source(struct comedi_device *dev,
 				  const struct s626_enc_info *k, uint16_t value)
 {
-	s626_debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_LATCHSRC),
-			  value << CRBBIT_LATCHSRC);
+	s626_debi_replace(dev, k->my_crb,
+			  ~(S626_CRBMSK_INTCTRL | S626_CRBMSK_LATCHSRC),
+			  value << S626_CRBBIT_LATCHSRC);
 }
 
 /*
@@ -665,15 +677,15 @@ static void s626_preload(struct comedi_device *dev,
 static void s626_reset_cap_flags_a(struct comedi_device *dev,
 				   const struct s626_enc_info *k)
 {
-	s626_debi_replace(dev, k->my_crb, ~CRBMSK_INTCTRL,
-			  CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A);
+	s626_debi_replace(dev, k->my_crb, ~S626_CRBMSK_INTCTRL,
+			  S626_CRBMSK_INTRESETCMD | S626_CRBMSK_INTRESET_A);
 }
 
 static void s626_reset_cap_flags_b(struct comedi_device *dev,
 				   const struct s626_enc_info *k)
 {
-	s626_debi_replace(dev, k->my_crb, ~CRBMSK_INTCTRL,
-			  CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B);
+	s626_debi_replace(dev, k->my_crb, ~S626_CRBMSK_INTCTRL,
+			  S626_CRBMSK_INTRESETCMD | S626_CRBMSK_INTRESET_B);
 }
 
 /*
@@ -695,41 +707,43 @@ static uint16_t s626_get_mode_a(struct comedi_device *dev,
 	 * Populate the standardized counter setup bit fields.
 	 * Note: IndexSrc is restricted to ENC_X or IndxPol.
 	 */
-	setup = (cra & STDMSK_LOADSRC) |	/* LoadSrc  = LoadSrcA. */
-		((crb << (STDBIT_LATCHSRC - CRBBIT_LATCHSRC)) &
-		 STDMSK_LATCHSRC) |		/* LatchSrc = LatchSrcA. */
-		((cra << (STDBIT_INTSRC - CRABIT_INTSRC_A)) &
-		 STDMSK_INTSRC) |		/* IntSrc   = IntSrcA. */
-		((cra << (STDBIT_INDXSRC - (CRABIT_INDXSRC_A + 1))) &
-		 STDMSK_INDXSRC) |		/* IndxSrc  = IndxSrcA<1>. */
-		((cra >> (CRABIT_INDXPOL_A - STDBIT_INDXPOL)) &
-		 STDMSK_INDXPOL) |		/* IndxPol  = IndxPolA. */
-		((crb >> (CRBBIT_CLKENAB_A - STDBIT_CLKENAB)) &
-		 STDMSK_CLKENAB);		/* ClkEnab  = ClkEnabA. */
+	setup = (cra & S626_STDMSK_LOADSRC) |	/* LoadSrc  = LoadSrcA. */
+		((crb << (S626_STDBIT_LATCHSRC - S626_CRBBIT_LATCHSRC)) &
+		 S626_STDMSK_LATCHSRC) |	/* LatchSrc = LatchSrcA. */
+		((cra << (S626_STDBIT_INTSRC - S626_CRABIT_INTSRC_A)) &
+		 S626_STDMSK_INTSRC) |		/* IntSrc   = IntSrcA. */
+		((cra << (S626_STDBIT_INDXSRC - (S626_CRABIT_INDXSRC_A + 1))) &
+		 S626_STDMSK_INDXSRC) |		/* IndxSrc  = IndxSrcA<1>. */
+		((cra >> (S626_CRABIT_INDXPOL_A - S626_STDBIT_INDXPOL)) &
+		 S626_STDMSK_INDXPOL) |		/* IndxPol  = IndxPolA. */
+		((crb >> (S626_CRBBIT_CLKENAB_A - S626_STDBIT_CLKENAB)) &
+		 S626_STDMSK_CLKENAB);		/* ClkEnab  = ClkEnabA. */
 
 	/* Adjust mode-dependent parameters. */
-	if (cra & (2 << CRABIT_CLKSRC_A)) {
+	if (cra & (2 << S626_CRABIT_CLKSRC_A)) {
 		/* Timer mode (ClkSrcA<1> == 1): */
 		/* Indicate Timer mode. */
-		setup |= CLKSRC_TIMER << STDBIT_CLKSRC;
+		setup |= S626_CLKSRC_TIMER << S626_STDBIT_CLKSRC;
 		/* Set ClkPol to indicate count direction (ClkSrcA<0>). */
-		setup |= (cra << (STDBIT_CLKPOL - CRABIT_CLKSRC_A)) &
-			 STDMSK_CLKPOL;
+		setup |= (cra << (S626_STDBIT_CLKPOL - S626_CRABIT_CLKSRC_A)) &
+			 S626_STDMSK_CLKPOL;
 		/* ClkMult must be 1x in Timer mode. */
-		setup |= MULT_X1 << STDBIT_CLKMULT;
+		setup |= S626_MULT_X1 << S626_STDBIT_CLKMULT;
 	} else {
 		/* Counter mode (ClkSrcA<1> == 0): */
 		/* Indicate Counter mode. */
-		setup |= CLKSRC_COUNTER << STDBIT_CLKSRC;
+		setup |= S626_CLKSRC_COUNTER << S626_STDBIT_CLKSRC;
 		/* Pass through ClkPol. */
-		setup |= (cra >> (CRABIT_CLKPOL_A - STDBIT_CLKPOL)) &
-			 STDMSK_CLKPOL;
+		setup |= (cra >> (S626_CRABIT_CLKPOL_A - S626_STDBIT_CLKPOL)) &
+			 S626_STDMSK_CLKPOL;
 		/* Force ClkMult to 1x if not legal, else pass through. */
-		if ((cra & CRAMSK_CLKMULT_A) == (MULT_X0 << CRABIT_CLKMULT_A))
-			setup |= MULT_X1 << STDBIT_CLKMULT;
+		if ((cra & S626_CRAMSK_CLKMULT_A) ==
+		    (S626_MULT_X0 << S626_CRABIT_CLKMULT_A))
+			setup |= S626_MULT_X1 << S626_STDBIT_CLKMULT;
 		else
-			setup |= (cra >> (CRABIT_CLKMULT_A - STDBIT_CLKMULT)) &
-				 STDMSK_CLKMULT;
+			setup |= (cra >> (S626_CRABIT_CLKMULT_A -
+					  S626_STDBIT_CLKMULT)) &
+				 S626_STDMSK_CLKMULT;
 	}
 
 	/* Return adjusted counter setup. */
@@ -751,48 +765,49 @@ static uint16_t s626_get_mode_b(struct comedi_device *dev,
 	 * Populate the standardized counter setup bit fields.
 	 * Note: IndexSrc is restricted to ENC_X or IndxPol.
 	 */
-	setup = ((crb << (STDBIT_INTSRC - CRBBIT_INTSRC_B)) &
-		 STDMSK_INTSRC) |		/* IntSrc   = IntSrcB. */
-		((crb << (STDBIT_LATCHSRC - CRBBIT_LATCHSRC)) &
-		 STDMSK_LATCHSRC) |		/* LatchSrc = LatchSrcB. */
-		((crb << (STDBIT_LOADSRC - CRBBIT_LOADSRC_B)) &
-		 STDMSK_LOADSRC) |		/* LoadSrc  = LoadSrcB. */
-		((crb << (STDBIT_INDXPOL - CRBBIT_INDXPOL_B)) &
-		 STDMSK_INDXPOL) |		/* IndxPol  = IndxPolB. */
-		((crb >> (CRBBIT_CLKENAB_B - STDBIT_CLKENAB)) &
-		 STDMSK_CLKENAB) |		/* ClkEnab  = ClkEnabB. */
-		((cra >> ((CRABIT_INDXSRC_B + 1) - STDBIT_INDXSRC)) &
-		 STDMSK_INDXSRC);		/* IndxSrc  = IndxSrcB<1>. */
+	setup = ((crb << (S626_STDBIT_INTSRC - S626_CRBBIT_INTSRC_B)) &
+		 S626_STDMSK_INTSRC) |		/* IntSrc   = IntSrcB. */
+		((crb << (S626_STDBIT_LATCHSRC - S626_CRBBIT_LATCHSRC)) &
+		 S626_STDMSK_LATCHSRC) |	/* LatchSrc = LatchSrcB. */
+		((crb << (S626_STDBIT_LOADSRC - S626_CRBBIT_LOADSRC_B)) &
+		 S626_STDMSK_LOADSRC) |		/* LoadSrc  = LoadSrcB. */
+		((crb << (S626_STDBIT_INDXPOL - S626_CRBBIT_INDXPOL_B)) &
+		 S626_STDMSK_INDXPOL) |		/* IndxPol  = IndxPolB. */
+		((crb >> (S626_CRBBIT_CLKENAB_B - S626_STDBIT_CLKENAB)) &
+		 S626_STDMSK_CLKENAB) |		/* ClkEnab  = ClkEnabB. */
+		((cra >> ((S626_CRABIT_INDXSRC_B + 1) - S626_STDBIT_INDXSRC)) &
+		 S626_STDMSK_INDXSRC);		/* IndxSrc  = IndxSrcB<1>. */
 
 	/* Adjust mode-dependent parameters. */
-	if ((crb & CRBMSK_CLKMULT_B) == (MULT_X0 << CRBBIT_CLKMULT_B)) {
-		/* Extender mode (ClkMultB == MULT_X0): */
+	if ((crb & S626_CRBMSK_CLKMULT_B) ==
+	    (S626_MULT_X0 << S626_CRBBIT_CLKMULT_B)) {
+		/* Extender mode (ClkMultB == S626_MULT_X0): */
 		/* Indicate Extender mode. */
-		setup |= CLKSRC_EXTENDER << STDBIT_CLKSRC;
+		setup |= S626_CLKSRC_EXTENDER << S626_STDBIT_CLKSRC;
 		/* Indicate multiplier is 1x. */
-		setup |= MULT_X1 << STDBIT_CLKMULT;
+		setup |= S626_MULT_X1 << S626_STDBIT_CLKMULT;
 		/* Set ClkPol equal to Timer count direction (ClkSrcB<0>). */
-		setup |= (cra >> (CRABIT_CLKSRC_B - STDBIT_CLKPOL)) &
-			 STDMSK_CLKPOL;
-	} else if (cra & (2 << CRABIT_CLKSRC_B)) {
+		setup |= (cra >> (S626_CRABIT_CLKSRC_B - S626_STDBIT_CLKPOL)) &
+			 S626_STDMSK_CLKPOL;
+	} else if (cra & (2 << S626_CRABIT_CLKSRC_B)) {
 		/* Timer mode (ClkSrcB<1> == 1): */
 		/* Indicate Timer mode. */
-		setup |= CLKSRC_TIMER << STDBIT_CLKSRC;
+		setup |= S626_CLKSRC_TIMER << S626_STDBIT_CLKSRC;
 		/* Indicate multiplier is 1x. */
-		setup |= MULT_X1 << STDBIT_CLKMULT;
+		setup |= S626_MULT_X1 << S626_STDBIT_CLKMULT;
 		/* Set ClkPol equal to Timer count direction (ClkSrcB<0>). */
-		setup |= (cra >> (CRABIT_CLKSRC_B - STDBIT_CLKPOL)) &
-			 STDMSK_CLKPOL;
+		setup |= (cra >> (S626_CRABIT_CLKSRC_B - S626_STDBIT_CLKPOL)) &
+			 S626_STDMSK_CLKPOL;
 	} else {
 		/* If Counter mode (ClkSrcB<1> == 0): */
 		/* Indicate Timer mode. */
-		setup |= CLKSRC_COUNTER << STDBIT_CLKSRC;
+		setup |= S626_CLKSRC_COUNTER << S626_STDBIT_CLKSRC;
 		/* Clock multiplier is passed through. */
-		setup |= (crb >> (CRBBIT_CLKMULT_B - STDBIT_CLKMULT)) &
-			 STDMSK_CLKMULT;
+		setup |= (crb >> (S626_CRBBIT_CLKMULT_B -
+				  S626_STDBIT_CLKMULT)) & S626_STDMSK_CLKMULT;
 		/* Clock polarity is passed through. */
-		setup |= (crb << (STDBIT_CLKPOL - CRBBIT_CLKPOL_B)) &
-			 STDMSK_CLKPOL;
+		setup |= (crb << (S626_STDBIT_CLKPOL - S626_CRBBIT_CLKPOL_B)) &
+			 S626_STDMSK_CLKPOL;
 	}
 
 	/* Return adjusted counter setup. */
@@ -815,49 +830,51 @@ static void s626_set_mode_a(struct comedi_device *dev,
 
 	/* Initialize CRA and CRB images. */
 	/* Preload trigger is passed through. */
-	cra = setup & CRAMSK_LOADSRC_A;
+	cra = setup & S626_CRAMSK_LOADSRC_A;
 	/* IndexSrc is restricted to ENC_X or IndxPol. */
-	cra |= ((setup & STDMSK_INDXSRC) >>
-		(STDBIT_INDXSRC - (CRABIT_INDXSRC_A + 1)));
+	cra |= (setup & S626_STDMSK_INDXSRC) >>
+	       (S626_STDBIT_INDXSRC - (S626_CRABIT_INDXSRC_A + 1));
 
 	/* Reset any pending CounterA event captures. */
-	crb = CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A;
+	crb = S626_CRBMSK_INTRESETCMD | S626_CRBMSK_INTRESET_A;
 	/* Clock enable is passed through. */
-	crb |= (setup & STDMSK_CLKENAB) << (CRBBIT_CLKENAB_A - STDBIT_CLKENAB);
+	crb |= (setup & S626_STDMSK_CLKENAB) <<
+	       (S626_CRBBIT_CLKENAB_A - S626_STDBIT_CLKENAB);
 
 	/* Force IntSrc to Disabled if disable_int_src is asserted. */
 	if (!disable_int_src)
-		cra |= ((setup & STDMSK_INTSRC) >> (STDBIT_INTSRC -
-						    CRABIT_INTSRC_A));
+		cra |= (setup & S626_STDMSK_INTSRC) >>
+		       (S626_STDBIT_INTSRC - S626_CRABIT_INTSRC_A);
 
 	/* Populate all mode-dependent attributes of CRA & CRB images. */
-	switch ((setup & STDMSK_CLKSRC) >> STDBIT_CLKSRC) {
-	case CLKSRC_EXTENDER:	/* Extender Mode: Force to Timer mode
-				 * (Extender valid only for B counters). */
-		/* Fall through to case CLKSRC_TIMER: */
-	case CLKSRC_TIMER:	/* Timer Mode: */
+	switch ((setup & S626_STDMSK_CLKSRC) >> S626_STDBIT_CLKSRC) {
+	case S626_CLKSRC_EXTENDER: /* Extender Mode: */
+		/* Force to Timer mode (Extender valid only for B counters). */
+		/* Fall through to case S626_CLKSRC_TIMER: */
+	case S626_CLKSRC_TIMER:	/* Timer Mode: */
 		/* ClkSrcA<1> selects system clock */
-		cra |= 2 << CRABIT_CLKSRC_A;
+		cra |= 2 << S626_CRABIT_CLKSRC_A;
 		/* Count direction (ClkSrcA<0>) obtained from ClkPol. */
-		cra |= (setup & STDMSK_CLKPOL) >>
-		       (STDBIT_CLKPOL - CRABIT_CLKSRC_A);
+		cra |= (setup & S626_STDMSK_CLKPOL) >>
+		       (S626_STDBIT_CLKPOL - S626_CRABIT_CLKSRC_A);
 		/* ClkPolA behaves as always-on clock enable. */
-		cra |= 1 << CRABIT_CLKPOL_A;
+		cra |= 1 << S626_CRABIT_CLKPOL_A;
 		/* ClkMult must be 1x. */
-		cra |= MULT_X1 << CRABIT_CLKMULT_A;
+		cra |= S626_MULT_X1 << S626_CRABIT_CLKMULT_A;
 		break;
 	default:		/* Counter Mode: */
 		/* Select ENC_C and ENC_D as clock/direction inputs. */
-		cra |= CLKSRC_COUNTER;
+		cra |= S626_CLKSRC_COUNTER;
 		/* Clock polarity is passed through. */
-		cra |= (setup & STDMSK_CLKPOL) <<
-		       (CRABIT_CLKPOL_A - STDBIT_CLKPOL);
+		cra |= (setup & S626_STDMSK_CLKPOL) <<
+		       (S626_CRABIT_CLKPOL_A - S626_STDBIT_CLKPOL);
 		/* Force multiplier to x1 if not legal, else pass through. */
-		if ((setup & STDMSK_CLKMULT) == (MULT_X0 << STDBIT_CLKMULT))
-			cra |= MULT_X1 << CRABIT_CLKMULT_A;
+		if ((setup & S626_STDMSK_CLKMULT) ==
+		    (S626_MULT_X0 << S626_STDBIT_CLKMULT))
+			cra |= S626_MULT_X1 << S626_CRABIT_CLKMULT_A;
 		else
-			cra |= (setup & STDMSK_CLKMULT) <<
-			       (CRABIT_CLKMULT_A - STDBIT_CLKMULT);
+			cra |= (setup & S626_STDMSK_CLKMULT) <<
+			       (S626_CRABIT_CLKMULT_A - S626_STDBIT_CLKMULT);
 		break;
 	}
 
@@ -865,9 +882,9 @@ static void s626_set_mode_a(struct comedi_device *dev,
 	 * Force positive index polarity if IndxSrc is software-driven only,
 	 * otherwise pass it through.
 	 */
-	if (~setup & STDMSK_INDXSRC)
-		cra |= (setup & STDMSK_INDXPOL) <<
-		       (CRABIT_INDXPOL_A - STDBIT_INDXPOL);
+	if (~setup & S626_STDMSK_INDXSRC)
+		cra |= (setup & S626_STDMSK_INDXPOL) <<
+		       (S626_CRABIT_INDXPOL_A - S626_STDBIT_INDXPOL);
 
 	/*
 	 * If IntSrc has been forced to Disabled, update the MISC2 interrupt
@@ -880,10 +897,10 @@ static void s626_set_mode_a(struct comedi_device *dev,
 	 * While retaining CounterB and LatchSrc configurations, program the
 	 * new counter operating mode.
 	 */
-	s626_debi_replace(dev, k->my_cra, CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B,
-			  cra);
-	s626_debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A),
-			  crb);
+	s626_debi_replace(dev, k->my_cra,
+			  S626_CRAMSK_INDXSRC_B | S626_CRAMSK_CLKSRC_B, cra);
+	s626_debi_replace(dev, k->my_crb,
+			  ~(S626_CRBMSK_INTCTRL | S626_CRBMSK_CLKENAB_A), crb);
 }
 
 static void s626_set_mode_b(struct comedi_device *dev,
@@ -896,57 +913,60 @@ static void s626_set_mode_b(struct comedi_device *dev,
 
 	/* Initialize CRA and CRB images. */
 	/* IndexSrc field is restricted to ENC_X or IndxPol. */
-	cra = (setup & STDMSK_INDXSRC) <<
-	      (CRABIT_INDXSRC_B + 1 - STDBIT_INDXSRC);
+	cra = (setup & S626_STDMSK_INDXSRC) <<
+	      (S626_CRABIT_INDXSRC_B + 1 - S626_STDBIT_INDXSRC);
 
 	/* Reset event captures and disable interrupts. */
-	crb = CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B;
+	crb = S626_CRBMSK_INTRESETCMD | S626_CRBMSK_INTRESET_B;
 	/* Clock enable is passed through. */
-	crb |= (setup & STDMSK_CLKENAB) << (CRBBIT_CLKENAB_B - STDBIT_CLKENAB);
+	crb |= (setup & S626_STDMSK_CLKENAB) <<
+	       (S626_CRBBIT_CLKENAB_B - S626_STDBIT_CLKENAB);
 	/* Preload trigger source is passed through. */
-	crb |= (setup & STDMSK_LOADSRC) >> (STDBIT_LOADSRC - CRBBIT_LOADSRC_B);
+	crb |= (setup & S626_STDMSK_LOADSRC) >>
+	       (S626_STDBIT_LOADSRC - S626_CRBBIT_LOADSRC_B);
 
 	/* Force IntSrc to Disabled if disable_int_src is asserted. */
 	if (!disable_int_src)
-		crb |= (setup & STDMSK_INTSRC) >>
-		       (STDBIT_INTSRC - CRBBIT_INTSRC_B);
+		crb |= (setup & S626_STDMSK_INTSRC) >>
+		       (S626_STDBIT_INTSRC - S626_CRBBIT_INTSRC_B);
 
 	/* Populate all mode-dependent attributes of CRA & CRB images. */
-	switch ((setup & STDMSK_CLKSRC) >> STDBIT_CLKSRC) {
-	case CLKSRC_TIMER:	/* Timer Mode: */
+	switch ((setup & S626_STDMSK_CLKSRC) >> S626_STDBIT_CLKSRC) {
+	case S626_CLKSRC_TIMER:	/* Timer Mode: */
 		/* ClkSrcB<1> selects system clock */
-		cra |= 2 << CRABIT_CLKSRC_B;
+		cra |= 2 << S626_CRABIT_CLKSRC_B;
 		/* with direction (ClkSrcB<0>) obtained from ClkPol. */
-		cra |= (setup & STDMSK_CLKPOL) <<
-		       (CRABIT_CLKSRC_B - STDBIT_CLKPOL);
+		cra |= (setup & S626_STDMSK_CLKPOL) <<
+		       (S626_CRABIT_CLKSRC_B - S626_STDBIT_CLKPOL);
 		/* ClkPolB behaves as always-on clock enable. */
-		crb |= 1 << CRBBIT_CLKPOL_B;
+		crb |= 1 << S626_CRBBIT_CLKPOL_B;
 		/* ClkMultB must be 1x. */
-		crb |= MULT_X1 << CRBBIT_CLKMULT_B;
+		crb |= S626_MULT_X1 << S626_CRBBIT_CLKMULT_B;
 		break;
-	case CLKSRC_EXTENDER:	/* Extender Mode: */
+	case S626_CLKSRC_EXTENDER:	/* Extender Mode: */
 		/* ClkSrcB source is OverflowA (same as "timer") */
-		cra |= 2 << CRABIT_CLKSRC_B;
+		cra |= 2 << S626_CRABIT_CLKSRC_B;
 		/* with direction obtained from ClkPol. */
-		cra |= (setup & STDMSK_CLKPOL) <<
-		       (CRABIT_CLKSRC_B - STDBIT_CLKPOL);
+		cra |= (setup & S626_STDMSK_CLKPOL) <<
+		       (S626_CRABIT_CLKSRC_B - S626_STDBIT_CLKPOL);
 		/* ClkPolB controls IndexB -- always set to active. */
-		crb |= 1 << CRBBIT_CLKPOL_B;
+		crb |= 1 << S626_CRBBIT_CLKPOL_B;
 		/* ClkMultB selects OverflowA as the clock source. */
-		crb |= MULT_X0 << CRBBIT_CLKMULT_B;
+		crb |= S626_MULT_X0 << S626_CRBBIT_CLKMULT_B;
 		break;
 	default:		/* Counter Mode: */
 		/* Select ENC_C and ENC_D as clock/direction inputs. */
-		cra |= CLKSRC_COUNTER << CRABIT_CLKSRC_B;
+		cra |= S626_CLKSRC_COUNTER << S626_CRABIT_CLKSRC_B;
 		/* ClkPol is passed through. */
-		crb |= (setup & STDMSK_CLKPOL) >>
-		       (STDBIT_CLKPOL - CRBBIT_CLKPOL_B);
+		crb |= (setup & S626_STDMSK_CLKPOL) >>
+		       (S626_STDBIT_CLKPOL - S626_CRBBIT_CLKPOL_B);
 		/* Force ClkMult to x1 if not legal, otherwise pass through. */
-		if ((setup & STDMSK_CLKMULT) == (MULT_X0 << STDBIT_CLKMULT))
-			crb |= MULT_X1 << CRBBIT_CLKMULT_B;
+		if ((setup & S626_STDMSK_CLKMULT) ==
+		    (S626_MULT_X0 << S626_STDBIT_CLKMULT))
+			crb |= S626_MULT_X1 << S626_CRBBIT_CLKMULT_B;
 		else
-			crb |= (setup & STDMSK_CLKMULT) <<
-			       (CRBBIT_CLKMULT_B - STDBIT_CLKMULT);
+			crb |= (setup & S626_STDMSK_CLKMULT) <<
+			       (S626_CRBBIT_CLKMULT_B - S626_STDBIT_CLKMULT);
 		break;
 	}
 
@@ -954,9 +974,9 @@ static void s626_set_mode_b(struct comedi_device *dev,
 	 * Force positive index polarity if IndxSrc is software-driven only,
 	 * otherwise pass it through.
 	 */
-	if (~setup & STDMSK_INDXSRC)
-		crb |= (setup & STDMSK_INDXPOL) >>
-		       (STDBIT_INDXPOL - CRBBIT_INDXPOL_B);
+	if (~setup & S626_STDMSK_INDXSRC)
+		crb |= (setup & S626_STDMSK_INDXPOL) >>
+		       (S626_STDBIT_INDXPOL - S626_CRBBIT_INDXPOL_B);
 
 	/*
 	 * If IntSrc has been forced to Disabled, update the MISC2 interrupt
@@ -969,10 +989,10 @@ static void s626_set_mode_b(struct comedi_device *dev,
 	 * While retaining CounterA and LatchSrc configurations, program the
 	 * new counter operating mode.
 	 */
-	s626_debi_replace(dev, k->my_cra, ~(CRAMSK_INDXSRC_B | CRAMSK_CLKSRC_B),
-			  cra);
-	s626_debi_replace(dev, k->my_crb, CRBMSK_CLKENAB_A | CRBMSK_LATCHSRC,
-			  crb);
+	s626_debi_replace(dev, k->my_cra,
+			  ~(S626_CRAMSK_INDXSRC_B | S626_CRAMSK_CLKSRC_B), cra);
+	s626_debi_replace(dev, k->my_crb,
+			  S626_CRBMSK_CLKENAB_A | S626_CRBMSK_LATCHSRC, crb);
 }
 
 /*
@@ -981,34 +1001,36 @@ static void s626_set_mode_b(struct comedi_device *dev,
 static void s626_set_enable_a(struct comedi_device *dev,
 			      const struct s626_enc_info *k, uint16_t enab)
 {
-	s626_debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_A),
-			  enab << CRBBIT_CLKENAB_A);
+	s626_debi_replace(dev, k->my_crb,
+			  ~(S626_CRBMSK_INTCTRL | S626_CRBMSK_CLKENAB_A),
+			  enab << S626_CRBBIT_CLKENAB_A);
 }
 
 static void s626_set_enable_b(struct comedi_device *dev,
 			      const struct s626_enc_info *k, uint16_t enab)
 {
-	s626_debi_replace(dev, k->my_crb, ~(CRBMSK_INTCTRL | CRBMSK_CLKENAB_B),
-			  enab << CRBBIT_CLKENAB_B);
+	s626_debi_replace(dev, k->my_crb,
+			  ~(S626_CRBMSK_INTCTRL | S626_CRBMSK_CLKENAB_B),
+			  enab << S626_CRBBIT_CLKENAB_B);
 }
 
 static uint16_t s626_get_enable_a(struct comedi_device *dev,
 				  const struct s626_enc_info *k)
 {
-	return (s626_debi_read(dev, k->my_crb) >> CRBBIT_CLKENAB_A) & 1;
+	return (s626_debi_read(dev, k->my_crb) >> S626_CRBBIT_CLKENAB_A) & 1;
 }
 
 static uint16_t s626_get_enable_b(struct comedi_device *dev,
 				  const struct s626_enc_info *k)
 {
-	return (s626_debi_read(dev, k->my_crb) >> CRBBIT_CLKENAB_B) & 1;
+	return (s626_debi_read(dev, k->my_crb) >> S626_CRBBIT_CLKENAB_B) & 1;
 }
 
 #ifdef unused
 static uint16_t s626_get_latch_source(struct comedi_device *dev,
 				      const struct s626_enc_info *k)
 {
-	return (s626_debi_read(dev, k->my_crb) >> CRBBIT_LATCHSRC) & 3;
+	return (s626_debi_read(dev, k->my_crb) >> S626_CRBBIT_LATCHSRC) & 3;
 }
 #endif
 
@@ -1020,27 +1042,28 @@ static uint16_t s626_get_latch_source(struct comedi_device *dev,
 static void s626_set_load_trig_a(struct comedi_device *dev,
 				 const struct s626_enc_info *k, uint16_t trig)
 {
-	s626_debi_replace(dev, k->my_cra, ~CRAMSK_LOADSRC_A,
-			  trig << CRABIT_LOADSRC_A);
+	s626_debi_replace(dev, k->my_cra, ~S626_CRAMSK_LOADSRC_A,
+			  trig << S626_CRABIT_LOADSRC_A);
 }
 
 static void s626_set_load_trig_b(struct comedi_device *dev,
 				 const struct s626_enc_info *k, uint16_t trig)
 {
-	s626_debi_replace(dev, k->my_crb, ~(CRBMSK_LOADSRC_B | CRBMSK_INTCTRL),
-			  trig << CRBBIT_LOADSRC_B);
+	s626_debi_replace(dev, k->my_crb,
+			  ~(S626_CRBMSK_LOADSRC_B | S626_CRBMSK_INTCTRL),
+			  trig << S626_CRBBIT_LOADSRC_B);
 }
 
 static uint16_t s626_get_load_trig_a(struct comedi_device *dev,
 				     const struct s626_enc_info *k)
 {
-	return (s626_debi_read(dev, k->my_cra) >> CRABIT_LOADSRC_A) & 3;
+	return (s626_debi_read(dev, k->my_cra) >> S626_CRABIT_LOADSRC_A) & 3;
 }
 
 static uint16_t s626_get_load_trig_b(struct comedi_device *dev,
 				     const struct s626_enc_info *k)
 {
-	return (s626_debi_read(dev, k->my_crb) >> CRBBIT_LOADSRC_B) & 3;
+	return (s626_debi_read(dev, k->my_crb) >> S626_CRBBIT_LOADSRC_B) & 3;
 }
 
 /*
@@ -1055,12 +1078,12 @@ static void s626_set_int_src_a(struct comedi_device *dev,
 	struct s626_private *devpriv = dev->private;
 
 	/* Reset any pending counter overflow or index captures. */
-	s626_debi_replace(dev, k->my_crb, ~CRBMSK_INTCTRL,
-			  CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A);
+	s626_debi_replace(dev, k->my_crb, ~S626_CRBMSK_INTCTRL,
+			  S626_CRBMSK_INTRESETCMD | S626_CRBMSK_INTRESET_A);
 
 	/* Program counter interrupt source. */
-	s626_debi_replace(dev, k->my_cra, ~CRAMSK_INTSRC_A,
-			  int_source << CRABIT_INTSRC_A);
+	s626_debi_replace(dev, k->my_cra, ~S626_CRAMSK_INTSRC_A,
+			  int_source << S626_CRABIT_INTSRC_A);
 
 	/* Update MISC2 interrupt enable mask. */
 	devpriv->counter_int_enabs =
@@ -1076,16 +1099,16 @@ static void s626_set_int_src_b(struct comedi_device *dev,
 	uint16_t crb;
 
 	/* Cache writeable CRB register image. */
-	crb = s626_debi_read(dev, k->my_crb) & ~CRBMSK_INTCTRL;
+	crb = s626_debi_read(dev, k->my_crb) & ~S626_CRBMSK_INTCTRL;
 
 	/* Reset any pending counter overflow or index captures. */
-	s626_debi_write(dev, k->my_crb,
-			(crb | CRBMSK_INTRESETCMD | CRBMSK_INTRESET_B));
+	s626_debi_write(dev, k->my_crb, (crb | S626_CRBMSK_INTRESETCMD |
+					 S626_CRBMSK_INTRESET_B));
 
 	/* Program counter interrupt source. */
 	s626_debi_write(dev, k->my_crb,
-			((crb & ~CRBMSK_INTSRC_B) |
-			 (int_source << CRBBIT_INTSRC_B)));
+			((crb & ~S626_CRBMSK_INTSRC_B) |
+			 (int_source << S626_CRBBIT_INTSRC_B)));
 
 	/* Update MISC2 interrupt enable mask. */
 	devpriv->counter_int_enabs =
@@ -1096,13 +1119,13 @@ static void s626_set_int_src_b(struct comedi_device *dev,
 static uint16_t s626_get_int_src_a(struct comedi_device *dev,
 				   const struct s626_enc_info *k)
 {
-	return (s626_debi_read(dev, k->my_cra) >> CRABIT_INTSRC_A) & 3;
+	return (s626_debi_read(dev, k->my_cra) >> S626_CRABIT_INTSRC_A) & 3;
 }
 
 static uint16_t s626_get_int_src_b(struct comedi_device *dev,
 				   const struct s626_enc_info *k)
 {
-	return (s626_debi_read(dev, k->my_crb) >> CRBBIT_INTSRC_B) & 3;
+	return (s626_debi_read(dev, k->my_crb) >> S626_CRBBIT_INTSRC_B) & 3;
 }
 
 #ifdef unused
@@ -1112,14 +1135,14 @@ static uint16_t s626_get_int_src_b(struct comedi_device *dev,
 static void s626_set_clk_mult(struct comedi_device *dev,
 			      const struct s626_enc_info *k, uint16_t value)
 {
-	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKMULT) |
-			    (value << STDBIT_CLKMULT)), false);
+	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~S626_STDMSK_CLKMULT) |
+			    (value << S626_STDBIT_CLKMULT)), false);
 }
 
 static uint16_t s626_get_clk_mult(struct comedi_device *dev,
 				  const struct s626_enc_info *k)
 {
-	return (k->get_mode(dev, k) >> STDBIT_CLKMULT) & 3;
+	return (k->get_mode(dev, k) >> S626_STDBIT_CLKMULT) & 3;
 }
 
 /*
@@ -1128,14 +1151,14 @@ static uint16_t s626_get_clk_mult(struct comedi_device *dev,
 static void s626_set_clk_pol(struct comedi_device *dev,
 			     const struct s626_enc_info *k, uint16_t value)
 {
-	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKPOL) |
-			    (value << STDBIT_CLKPOL)), false);
+	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~S626_STDMSK_CLKPOL) |
+			    (value << S626_STDBIT_CLKPOL)), false);
 }
 
 static uint16_t s626_get_clk_pol(struct comedi_device *dev,
 				 const struct s626_enc_info *k)
 {
-	return (k->get_mode(dev, k) >> STDBIT_CLKPOL) & 1;
+	return (k->get_mode(dev, k) >> S626_STDBIT_CLKPOL) & 1;
 }
 
 /*
@@ -1144,14 +1167,14 @@ static uint16_t s626_get_clk_pol(struct comedi_device *dev,
 static void s626_set_clk_src(struct comedi_device *dev,
 			     const struct s626_enc_info *k, uint16_t value)
 {
-	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_CLKSRC) |
-			    (value << STDBIT_CLKSRC)), false);
+	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~S626_STDMSK_CLKSRC) |
+			    (value << S626_STDBIT_CLKSRC)), false);
 }
 
 static uint16_t s626_get_clk_src(struct comedi_device *dev,
 				 const struct s626_enc_info *k)
 {
-	return (k->get_mode(dev, k) >> STDBIT_CLKSRC) & 3;
+	return (k->get_mode(dev, k) >> S626_STDBIT_CLKSRC) & 3;
 }
 
 /*
@@ -1160,14 +1183,14 @@ static uint16_t s626_get_clk_src(struct comedi_device *dev,
 static void s626_set_index_pol(struct comedi_device *dev,
 			       const struct s626_enc_info *k, uint16_t value)
 {
-	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_INDXPOL) |
-			    ((value != 0) << STDBIT_INDXPOL)), false);
+	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~S626_STDMSK_INDXPOL) |
+			    ((value != 0) << S626_STDBIT_INDXPOL)), false);
 }
 
 static uint16_t s626_get_index_pol(struct comedi_device *dev,
 				   const struct s626_enc_info *k)
 {
-	return (k->get_mode(dev, k) >> STDBIT_INDXPOL) & 1;
+	return (k->get_mode(dev, k) >> S626_STDBIT_INDXPOL) & 1;
 }
 
 /*
@@ -1176,14 +1199,14 @@ static uint16_t s626_get_index_pol(struct comedi_device *dev,
 static void s626_set_index_src(struct comedi_device *dev,
 			       const struct s626_enc_info *k, uint16_t value)
 {
-	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~STDMSK_INDXSRC) |
-			    ((value != 0) << STDBIT_INDXSRC)), false);
+	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~S626_STDMSK_INDXSRC) |
+			    ((value != 0) << S626_STDBIT_INDXSRC)), false);
 }
 
 static uint16_t s626_get_index_src(struct comedi_device *dev,
 				   const struct s626_enc_info *k)
 {
-	return (k->get_mode(dev, k) >> STDBIT_INDXSRC) & 1;
+	return (k->get_mode(dev, k) >> S626_STDBIT_INDXSRC) & 1;
 }
 #endif
 
@@ -1197,7 +1220,7 @@ static void s626_pulse_index_a(struct comedi_device *dev,
 
 	cra = s626_debi_read(dev, k->my_cra);
 	/* Pulse index. */
-	s626_debi_write(dev, k->my_cra, (cra ^ CRAMSK_INDXPOL_A));
+	s626_debi_write(dev, k->my_cra, (cra ^ S626_CRAMSK_INDXPOL_A));
 	s626_debi_write(dev, k->my_cra, cra);
 }
 
@@ -1206,9 +1229,9 @@ static void s626_pulse_index_b(struct comedi_device *dev,
 {
 	uint16_t crb;
 
-	crb = s626_debi_read(dev, k->my_crb) & ~CRBMSK_INTCTRL;
+	crb = s626_debi_read(dev, k->my_crb) & ~S626_CRBMSK_INTCTRL;
 	/* Pulse index. */
-	s626_debi_write(dev, k->my_crb, (crb ^ CRBMSK_INDXPOL_B));
+	s626_debi_write(dev, k->my_crb, (crb ^ S626_CRBMSK_INDXPOL_B));
 	s626_debi_write(dev, k->my_crb, crb);
 }
 
@@ -1224,9 +1247,9 @@ static const struct s626_enc_info s626_enc_chan_info[] = {
 		.set_load_trig		= s626_set_load_trig_a,
 		.set_mode		= s626_set_mode_a,
 		.reset_cap_flags	= s626_reset_cap_flags_a,
-		.my_cra			= LP_CR0A,
-		.my_crb			= LP_CR0B,
-		.my_latch_lsw		= LP_CNTR0ALSW,
+		.my_cra			= S626_LP_CR0A,
+		.my_crb			= S626_LP_CR0B,
+		.my_latch_lsw		= S626_LP_CNTR0ALSW,
 		.my_event_bits		= S626_EVBITS(0),
 	}, {
 		.get_enable		= s626_get_enable_a,
@@ -1239,9 +1262,9 @@ static const struct s626_enc_info s626_enc_chan_info[] = {
 		.set_load_trig		= s626_set_load_trig_a,
 		.set_mode		= s626_set_mode_a,
 		.reset_cap_flags	= s626_reset_cap_flags_a,
-		.my_cra			= LP_CR1A,
-		.my_crb			= LP_CR1B,
-		.my_latch_lsw		= LP_CNTR1ALSW,
+		.my_cra			= S626_LP_CR1A,
+		.my_crb			= S626_LP_CR1B,
+		.my_latch_lsw		= S626_LP_CNTR1ALSW,
 		.my_event_bits		= S626_EVBITS(1),
 	}, {
 		.get_enable		= s626_get_enable_a,
@@ -1254,9 +1277,9 @@ static const struct s626_enc_info s626_enc_chan_info[] = {
 		.set_load_trig		= s626_set_load_trig_a,
 		.set_mode		= s626_set_mode_a,
 		.reset_cap_flags	= s626_reset_cap_flags_a,
-		.my_cra			= LP_CR2A,
-		.my_crb			= LP_CR2B,
-		.my_latch_lsw		= LP_CNTR2ALSW,
+		.my_cra			= S626_LP_CR2A,
+		.my_crb			= S626_LP_CR2B,
+		.my_latch_lsw		= S626_LP_CNTR2ALSW,
 		.my_event_bits		= S626_EVBITS(2),
 	}, {
 		.get_enable		= s626_get_enable_b,
@@ -1269,9 +1292,9 @@ static const struct s626_enc_info s626_enc_chan_info[] = {
 		.set_load_trig		= s626_set_load_trig_b,
 		.set_mode		= s626_set_mode_b,
 		.reset_cap_flags	= s626_reset_cap_flags_b,
-		.my_cra			= LP_CR0A,
-		.my_crb			= LP_CR0B,
-		.my_latch_lsw		= LP_CNTR0BLSW,
+		.my_cra			= S626_LP_CR0A,
+		.my_crb			= S626_LP_CR0B,
+		.my_latch_lsw		= S626_LP_CNTR0BLSW,
 		.my_event_bits		= S626_EVBITS(3),
 	}, {
 		.get_enable		= s626_get_enable_b,
@@ -1284,9 +1307,9 @@ static const struct s626_enc_info s626_enc_chan_info[] = {
 		.set_load_trig		= s626_set_load_trig_b,
 		.set_mode		= s626_set_mode_b,
 		.reset_cap_flags	= s626_reset_cap_flags_b,
-		.my_cra			= LP_CR1A,
-		.my_crb			= LP_CR1B,
-		.my_latch_lsw		= LP_CNTR1BLSW,
+		.my_cra			= S626_LP_CR1A,
+		.my_crb			= S626_LP_CR1B,
+		.my_latch_lsw		= S626_LP_CNTR1BLSW,
 		.my_event_bits		= S626_EVBITS(4),
 	}, {
 		.get_enable		= s626_get_enable_b,
@@ -1299,9 +1322,9 @@ static const struct s626_enc_info s626_enc_chan_info[] = {
 		.set_load_trig		= s626_set_load_trig_b,
 		.set_mode		= s626_set_mode_b,
 		.reset_cap_flags	= s626_reset_cap_flags_b,
-		.my_cra			= LP_CR2A,
-		.my_crb			= LP_CR2B,
-		.my_latch_lsw		= LP_CNTR2BLSW,
+		.my_cra			= S626_LP_CR2A,
+		.my_crb			= S626_LP_CR2B,
+		.my_latch_lsw		= S626_LP_CNTR2BLSW,
 		.my_event_bits		= S626_EVBITS(5),
 	},
 };
@@ -1326,19 +1349,19 @@ static int s626_dio_set_irq(struct comedi_device *dev, unsigned int chan)
 	unsigned int status;
 
 	/* set channel to capture positive edge */
-	status = s626_debi_read(dev, LP_RDEDGSEL(group));
-	s626_debi_write(dev, LP_WREDGSEL(group), mask | status);
+	status = s626_debi_read(dev, S626_LP_RDEDGSEL(group));
+	s626_debi_write(dev, S626_LP_WREDGSEL(group), mask | status);
 
 	/* enable interrupt on selected channel */
-	status = s626_debi_read(dev, LP_RDINTSEL(group));
-	s626_debi_write(dev, LP_WRINTSEL(group), mask | status);
+	status = s626_debi_read(dev, S626_LP_RDINTSEL(group));
+	s626_debi_write(dev, S626_LP_WRINTSEL(group), mask | status);
 
 	/* enable edge capture write command */
-	s626_debi_write(dev, LP_MISC1, MISC1_EDCAP);
+	s626_debi_write(dev, S626_LP_MISC1, S626_MISC1_EDCAP);
 
 	/* enable edge capture on selected channel */
-	status = s626_debi_read(dev, LP_RDCAPSEL(group));
-	s626_debi_write(dev, LP_WRCAPSEL(group), mask | status);
+	status = s626_debi_read(dev, S626_LP_RDCAPSEL(group));
+	s626_debi_write(dev, S626_LP_WRCAPSEL(group), mask | status);
 
 	return 0;
 }
@@ -1347,10 +1370,10 @@ static int s626_dio_reset_irq(struct comedi_device *dev, unsigned int group,
 			      unsigned int mask)
 {
 	/* disable edge capture write command */
-	s626_debi_write(dev, LP_MISC1, MISC1_NOEDCAP);
+	s626_debi_write(dev, S626_LP_MISC1, S626_MISC1_NOEDCAP);
 
 	/* enable edge capture on selected channel */
-	s626_debi_write(dev, LP_WRCAPSEL(group), mask);
+	s626_debi_write(dev, S626_LP_WRCAPSEL(group), mask);
 
 	return 0;
 }
@@ -1360,11 +1383,11 @@ static int s626_dio_clear_irq(struct comedi_device *dev)
 	unsigned int group;
 
 	/* disable edge capture write command */
-	s626_debi_write(dev, LP_MISC1, MISC1_NOEDCAP);
+	s626_debi_write(dev, S626_LP_MISC1, S626_MISC1_NOEDCAP);
 
 	/* clear all dio pending events and interrupt */
 	for (group = 0; group < S626_DIO_BANKS; group++)
-		s626_debi_write(dev, LP_WRCAPSEL(group), 0xffff);
+		s626_debi_write(dev, S626_LP_WRCAPSEL(group), 0xffff);
 
 	return 0;
 }
@@ -1383,7 +1406,7 @@ static void s626_handle_dio_interrupt(struct comedi_device *dev,
 		if ((irqbit >> (cmd->start_arg - (16 * group))) == 1 &&
 		    cmd->start_src == TRIG_EXT) {
 			/* Start executing the RPS program */
-			s626_mc_enable(dev, MC1_ERPS1, P_MC1);
+			s626_mc_enable(dev, S626_MC1_ERPS1, S626_P_MC1);
 
 			if (cmd->scan_begin_src == TRIG_EXT)
 				s626_dio_set_irq(dev, cmd->scan_begin_arg);
@@ -1391,7 +1414,7 @@ static void s626_handle_dio_interrupt(struct comedi_device *dev,
 		if ((irqbit >> (cmd->scan_begin_arg - (16 * group))) == 1 &&
 		    cmd->scan_begin_src == TRIG_EXT) {
 			/* Trigger ADC scan loop start */
-			s626_mc_enable(dev, MC2_ADC_RPS, P_MC2);
+			s626_mc_enable(dev, S626_MC2_ADC_RPS, S626_P_MC2);
 
 			if (cmd->convert_src == TRIG_EXT) {
 				devpriv->ai_convert_count = cmd->chanlist_len;
@@ -1404,13 +1427,13 @@ static void s626_handle_dio_interrupt(struct comedi_device *dev,
 					&s626_enc_chan_info[5];
 
 				devpriv->ai_convert_count = cmd->chanlist_len;
-				k->set_enable(dev, k, CLKENAB_ALWAYS);
+				k->set_enable(dev, k, S626_CLKENAB_ALWAYS);
 			}
 		}
 		if ((irqbit >> (cmd->convert_arg - (16 * group))) == 1 &&
 		    cmd->convert_src == TRIG_EXT) {
 			/* Trigger ADC scan loop start */
-			s626_mc_enable(dev, MC2_ADC_RPS, P_MC2);
+			s626_mc_enable(dev, S626_MC2_ADC_RPS, S626_P_MC2);
 
 			devpriv->ai_convert_count--;
 			if (devpriv->ai_convert_count > 0)
@@ -1427,7 +1450,7 @@ static void s626_check_dio_interrupts(struct comedi_device *dev)
 	for (group = 0; group < S626_DIO_BANKS; group++) {
 		irqbit = 0;
 		/* read interrupt type */
-		irqbit = s626_debi_read(dev, LP_RDCAPFLG(group));
+		irqbit = s626_debi_read(dev, S626_LP_RDCAPFLG(group));
 
 		/* check if interrupt is generated from dio channels */
 		if (irqbit) {
@@ -1447,34 +1470,34 @@ static void s626_check_counter_interrupts(struct comedi_device *dev)
 	uint16_t irqbit;
 
 	/* read interrupt type */
-	irqbit = s626_debi_read(dev, LP_RDMISC2);
+	irqbit = s626_debi_read(dev, S626_LP_RDMISC2);
 
 	/* check interrupt on counters */
-	if (irqbit & IRQ_COINT1A) {
+	if (irqbit & S626_IRQ_COINT1A) {
 		k = &s626_enc_chan_info[0];
 
 		/* clear interrupt capture flag */
 		k->reset_cap_flags(dev, k);
 	}
-	if (irqbit & IRQ_COINT2A) {
+	if (irqbit & S626_IRQ_COINT2A) {
 		k = &s626_enc_chan_info[1];
 
 		/* clear interrupt capture flag */
 		k->reset_cap_flags(dev, k);
 	}
-	if (irqbit & IRQ_COINT3A) {
+	if (irqbit & S626_IRQ_COINT3A) {
 		k = &s626_enc_chan_info[2];
 
 		/* clear interrupt capture flag */
 		k->reset_cap_flags(dev, k);
 	}
-	if (irqbit & IRQ_COINT1B) {
+	if (irqbit & S626_IRQ_COINT1B) {
 		k = &s626_enc_chan_info[3];
 
 		/* clear interrupt capture flag */
 		k->reset_cap_flags(dev, k);
 	}
-	if (irqbit & IRQ_COINT2B) {
+	if (irqbit & S626_IRQ_COINT2B) {
 		k = &s626_enc_chan_info[4];
 
 		/* clear interrupt capture flag */
@@ -1483,15 +1506,16 @@ static void s626_check_counter_interrupts(struct comedi_device *dev)
 		if (devpriv->ai_convert_count > 0) {
 			devpriv->ai_convert_count--;
 			if (devpriv->ai_convert_count == 0)
-				k->set_enable(dev, k, CLKENAB_INDEX);
+				k->set_enable(dev, k, S626_CLKENAB_INDEX);
 
 			if (cmd->convert_src == TRIG_TIMER) {
 				/* Trigger ADC scan loop start */
-				s626_mc_enable(dev, MC2_ADC_RPS, P_MC2);
+				s626_mc_enable(dev, S626_MC2_ADC_RPS,
+					       S626_P_MC2);
 			}
 		}
 	}
-	if (irqbit & IRQ_COINT3B) {
+	if (irqbit & S626_IRQ_COINT3B) {
 		k = &s626_enc_chan_info[5];
 
 		/* clear interrupt capture flag */
@@ -1499,13 +1523,13 @@ static void s626_check_counter_interrupts(struct comedi_device *dev)
 
 		if (cmd->scan_begin_src == TRIG_TIMER) {
 			/* Trigger ADC scan loop start */
-			s626_mc_enable(dev, MC2_ADC_RPS, P_MC2);
+			s626_mc_enable(dev, S626_MC2_ADC_RPS, S626_P_MC2);
 		}
 
 		if (cmd->convert_src == TRIG_TIMER) {
 			k = &s626_enc_chan_info[4];
 			devpriv->ai_convert_count = cmd->chanlist_len;
-			k->set_enable(dev, k, CLKENAB_ALWAYS);
+			k->set_enable(dev, k, S626_CLKENAB_ALWAYS);
 		}
 	}
 }
@@ -1550,7 +1574,7 @@ static bool s626_handle_eos_interrupt(struct comedi_device *dev)
 		devpriv->ai_cmd_running = 0;
 
 		/* Stop RPS program */
-		s626_mc_disable(dev, MC1_ERPS1, P_MC1);
+		s626_mc_disable(dev, S626_MC1_ERPS1, S626_P_MC1);
 
 		/* send end of acquisition */
 		async->events |= COMEDI_CB_EOA;
@@ -1581,23 +1605,23 @@ static irqreturn_t s626_irq_handler(int irq, void *d)
 	spin_lock_irqsave(&dev->spinlock, flags);
 
 	/* save interrupt enable register state */
-	irqstatus = readl(devpriv->mmio + P_IER);
+	irqstatus = readl(devpriv->mmio + S626_P_IER);
 
 	/* read interrupt type */
-	irqtype = readl(devpriv->mmio + P_ISR);
+	irqtype = readl(devpriv->mmio + S626_P_ISR);
 
 	/* disable master interrupt */
-	writel(0, devpriv->mmio + P_IER);
+	writel(0, devpriv->mmio + S626_P_IER);
 
 	/* clear interrupt */
-	writel(irqtype, devpriv->mmio + P_ISR);
+	writel(irqtype, devpriv->mmio + S626_P_ISR);
 
 	switch (irqtype) {
-	case IRQ_RPS1:	/* end_of_scan occurs */
+	case S626_IRQ_RPS1:	/* end_of_scan occurs */
 		if (s626_handle_eos_interrupt(dev))
 			irqstatus = 0;
 		break;
-	case IRQ_GPIO3:	/* check dio and counter interrupt */
+	case S626_IRQ_GPIO3:	/* check dio and counter interrupt */
 		/* s626_dio_clear_irq(dev); */
 		s626_check_dio_interrupts(dev);
 		s626_check_counter_interrupts(dev);
@@ -1605,7 +1629,7 @@ static irqreturn_t s626_irq_handler(int irq, void *d)
 	}
 
 	/* enable interrupt */
-	writel(irqstatus, devpriv->mmio + P_IER);
+	writel(irqstatus, devpriv->mmio + S626_P_IER);
 
 	spin_unlock_irqrestore(&dev->spinlock, flags);
 	return IRQ_HANDLED;
@@ -1625,20 +1649,20 @@ static void s626_reset_adc(struct comedi_device *dev, uint8_t *ppl)
 	struct comedi_cmd *cmd = &dev->subdevices->async->cmd;
 
 	/* Stop RPS program in case it is currently running */
-	s626_mc_disable(dev, MC1_ERPS1, P_MC1);
+	s626_mc_disable(dev, S626_MC1_ERPS1, S626_P_MC1);
 
 	/* Set starting logical address to write RPS commands. */
 	rps = (uint32_t *)devpriv->rps_buf.logical_base;
 
 	/* Initialize RPS instruction pointer */
 	writel((uint32_t)devpriv->rps_buf.physical_base,
-	       devpriv->mmio + P_RPSADDR1);
+	       devpriv->mmio + S626_P_RPSADDR1);
 
 	/* Construct RPS program in rps_buf DMA buffer */
 	if (cmd != NULL && cmd->scan_begin_src != TRIG_FOLLOW) {
 		/* Wait for Start trigger. */
-		*rps++ = RPS_PAUSE | RPS_SIGADC;
-		*rps++ = RPS_CLRSIGNAL | RPS_SIGADC;
+		*rps++ = S626_RPS_PAUSE | S626_RPS_SIGADC;
+		*rps++ = S626_RPS_CLRSIGNAL | S626_RPS_SIGADC;
 	}
 
 	/*
@@ -1650,20 +1674,22 @@ static void s626_reset_adc(struct comedi_device *dev, uint8_t *ppl)
 	 * the previously programmed value.
 	 */
 	/* Write DEBI Write command and address to shadow RAM. */
-	*rps++ = RPS_LDREG | (P_DEBICMD >> 2);
-	*rps++ = DEBI_CMD_WRWORD | LP_GSEL;
-	*rps++ = RPS_LDREG | (P_DEBIAD >> 2);
+	*rps++ = S626_RPS_LDREG | (S626_P_DEBICMD >> 2);
+	*rps++ = S626_DEBI_CMD_WRWORD | S626_LP_GSEL;
+	*rps++ = S626_RPS_LDREG | (S626_P_DEBIAD >> 2);
 	/* Write DEBI immediate data  to shadow RAM: */
-	*rps++ = GSEL_BIPOLAR5V;	/* arbitrary immediate data  value. */
-	*rps++ = RPS_CLRSIGNAL | RPS_DEBI;
+	*rps++ = S626_GSEL_BIPOLAR5V;	/* arbitrary immediate data  value. */
+	*rps++ = S626_RPS_CLRSIGNAL | S626_RPS_DEBI;
 	/* Reset "shadow RAM  uploaded" flag. */
-	*rps++ = RPS_UPLOAD | RPS_DEBI;	/* Invoke shadow RAM upload. */
-	*rps++ = RPS_PAUSE | RPS_DEBI;	/* Wait for shadow upload to finish. */
+	/* Invoke shadow RAM upload. */
+	*rps++ = S626_RPS_UPLOAD | S626_RPS_DEBI;
+	/* Wait for shadow upload to finish. */
+	*rps++ = S626_RPS_PAUSE | S626_RPS_DEBI;
 
 	/*
 	 * Digitize all slots in the poll list. This is implemented as a
 	 * for loop to limit the slot count to 16 in case the application
-	 * forgot to set the EOPL flag in the final slot.
+	 * forgot to set the S626_EOPL flag in the final slot.
 	 */
 	for (devpriv->adc_items = 0; devpriv->adc_items < 16;
 	     devpriv->adc_items++) {
@@ -1673,77 +1699,80 @@ static void s626_reset_adc(struct comedi_device *dev, uint8_t *ppl)
 		 * (EOPL,x,x,RANGE,CHAN<3:0>), where RANGE code indicates 0 =
 		 * +-10V, 1 = +-5V, and EOPL = End of Poll List marker.
 		 */
-		local_ppl = (*ppl << 8) | (*ppl & 0x10 ? GSEL_BIPOLAR5V :
-					   GSEL_BIPOLAR10V);
+		local_ppl = (*ppl << 8) | (*ppl & 0x10 ? S626_GSEL_BIPOLAR5V :
+					   S626_GSEL_BIPOLAR10V);
 
 		/* Switch ADC analog gain. */
 		/* Write DEBI command and address to shadow RAM. */
-		*rps++ = RPS_LDREG | (P_DEBICMD >> 2);
-		*rps++ = DEBI_CMD_WRWORD | LP_GSEL;
+		*rps++ = S626_RPS_LDREG | (S626_P_DEBICMD >> 2);
+		*rps++ = S626_DEBI_CMD_WRWORD | S626_LP_GSEL;
 		/* Write DEBI immediate data to shadow RAM. */
-		*rps++ = RPS_LDREG | (P_DEBIAD >> 2);
+		*rps++ = S626_RPS_LDREG | (S626_P_DEBIAD >> 2);
 		*rps++ = local_ppl;
 		/* Reset "shadow RAM uploaded" flag. */
-		*rps++ = RPS_CLRSIGNAL | RPS_DEBI;
+		*rps++ = S626_RPS_CLRSIGNAL | S626_RPS_DEBI;
 		/* Invoke shadow RAM upload. */
-		*rps++ = RPS_UPLOAD | RPS_DEBI;
+		*rps++ = S626_RPS_UPLOAD | S626_RPS_DEBI;
 		/* Wait for shadow upload to finish. */
-		*rps++ = RPS_PAUSE | RPS_DEBI;
+		*rps++ = S626_RPS_PAUSE | S626_RPS_DEBI;
 		/* Select ADC analog input channel. */
-		*rps++ = RPS_LDREG | (P_DEBICMD >> 2);
+		*rps++ = S626_RPS_LDREG | (S626_P_DEBICMD >> 2);
 		/* Write DEBI command and address to shadow RAM. */
-		*rps++ = DEBI_CMD_WRWORD | LP_ISEL;
-		*rps++ = RPS_LDREG | (P_DEBIAD >> 2);
+		*rps++ = S626_DEBI_CMD_WRWORD | S626_LP_ISEL;
+		*rps++ = S626_RPS_LDREG | (S626_P_DEBIAD >> 2);
 		/* Write DEBI immediate data to shadow RAM. */
 		*rps++ = local_ppl;
 		/* Reset "shadow RAM uploaded" flag. */
-		*rps++ = RPS_CLRSIGNAL | RPS_DEBI;
+		*rps++ = S626_RPS_CLRSIGNAL | S626_RPS_DEBI;
 		/* Invoke shadow RAM upload. */
-		*rps++ = RPS_UPLOAD | RPS_DEBI;
+		*rps++ = S626_RPS_UPLOAD | S626_RPS_DEBI;
 		/* Wait for shadow upload to finish. */
-		*rps++ = RPS_PAUSE | RPS_DEBI;
+		*rps++ = S626_RPS_PAUSE | S626_RPS_DEBI;
 
 		/*
 		 * Delay at least 10 microseconds for analog input settling.
-		 * Instead of padding with NOPs, we use RPS_JUMP instructions
-		 * here; this allows us to produce a longer delay than is
-		 * possible with NOPs because each RPS_JUMP flushes the RPS'
-		 * instruction prefetch pipeline.
+		 * Instead of padding with NOPs, we use S626_RPS_JUMP
+		 * instructions here; this allows us to produce a longer delay
+		 * than is possible with NOPs because each S626_RPS_JUMP
+		 * flushes the RPS' instruction prefetch pipeline.
 		 */
 		jmp_adrs =
 			(uint32_t)devpriv->rps_buf.physical_base +
 			(uint32_t)((unsigned long)rps -
 				   (unsigned long)devpriv->
 						  rps_buf.logical_base);
-		for (i = 0; i < (10 * RPSCLK_PER_US / 2); i++) {
+		for (i = 0; i < (10 * S626_RPSCLK_PER_US / 2); i++) {
 			jmp_adrs += 8;	/* Repeat to implement time delay: */
-			*rps++ = RPS_JUMP; /* Jump to next RPS instruction. */
+			/* Jump to next RPS instruction. */
+			*rps++ = S626_RPS_JUMP;
 			*rps++ = jmp_adrs;
 		}
 
 		if (cmd != NULL && cmd->convert_src != TRIG_NOW) {
 			/* Wait for Start trigger. */
-			*rps++ = RPS_PAUSE | RPS_SIGADC;
-			*rps++ = RPS_CLRSIGNAL | RPS_SIGADC;
+			*rps++ = S626_RPS_PAUSE | S626_RPS_SIGADC;
+			*rps++ = S626_RPS_CLRSIGNAL | S626_RPS_SIGADC;
 		}
 		/* Start ADC by pulsing GPIO1. */
 		/* Begin ADC Start pulse. */
-		*rps++ = RPS_LDREG | (P_GPIO >> 2);
-		*rps++ = GPIO_BASE | GPIO1_LO;
-		*rps++ = RPS_NOP;
+		*rps++ = S626_RPS_LDREG | (S626_P_GPIO >> 2);
+		*rps++ = S626_GPIO_BASE | S626_GPIO1_LO;
+		*rps++ = S626_RPS_NOP;
 		/* VERSION 2.03 CHANGE: STRETCH OUT ADC START PULSE. */
 		/* End ADC Start pulse. */
-		*rps++ = RPS_LDREG | (P_GPIO >> 2);
-		*rps++ = GPIO_BASE | GPIO1_HI;
+		*rps++ = S626_RPS_LDREG | (S626_P_GPIO >> 2);
+		*rps++ = S626_GPIO_BASE | S626_GPIO1_HI;
 		/*
 		 * Wait for ADC to complete (GPIO2 is asserted high when ADC not
 		 * busy) and for data from previous conversion to shift into FB
 		 * BUFFER 1 register.
 		 */
-		*rps++ = RPS_PAUSE | RPS_GPIO2;	/* Wait for ADC done. */
+		/* Wait for ADC done. */
+		*rps++ = S626_RPS_PAUSE | S626_RPS_GPIO2;
 
 		/* Transfer ADC data from FB BUFFER 1 register to DMA buffer. */
-		*rps++ = RPS_STREG | (S626_BUGFIX_STREG(P_FB_BUFFER1) >> 2);
+		*rps++ = S626_RPS_STREG |
+			 (S626_BUGFIX_STREG(S626_P_FB_BUFFER1) >> 2);
 		*rps++ = (uint32_t)devpriv->ana_buf.physical_base +
 			 (devpriv->adc_items << 2);
 
@@ -1751,7 +1780,7 @@ static void s626_reset_adc(struct comedi_device *dev, uint8_t *ppl)
 		 * If this slot's EndOfPollList flag is set, all channels have
 		 * now been processed.
 		 */
-		if (*ppl++ & EOPL) {
+		if (*ppl++ & S626_EOPL) {
 			devpriv->adc_items++; /* Adjust poll list item count. */
 			break;	/* Exit poll list processing loop. */
 		}
@@ -1765,41 +1794,42 @@ static void s626_reset_adc(struct comedi_device *dev, uint8_t *ppl)
 	 * conversion.  Without this delay, the last conversion's data value
 	 * is sometimes set to the previous conversion's data value.
 	 */
-	for (n = 0; n < (2 * RPSCLK_PER_US); n++)
-		*rps++ = RPS_NOP;
+	for (n = 0; n < (2 * S626_RPSCLK_PER_US); n++)
+		*rps++ = S626_RPS_NOP;
 
 	/*
 	 * Start a dummy conversion to cause the data from the last
 	 * conversion of interest to be shifted in.
 	 */
-	*rps++ = RPS_LDREG | (P_GPIO >> 2);	/* Begin ADC Start pulse. */
-	*rps++ = GPIO_BASE | GPIO1_LO;
-	*rps++ = RPS_NOP;
+	/* Begin ADC Start pulse. */
+	*rps++ = S626_RPS_LDREG | (S626_P_GPIO >> 2);
+	*rps++ = S626_GPIO_BASE | S626_GPIO1_LO;
+	*rps++ = S626_RPS_NOP;
 	/* VERSION 2.03 CHANGE: STRETCH OUT ADC START PULSE. */
-	*rps++ = RPS_LDREG | (P_GPIO >> 2);	/* End ADC Start pulse. */
-	*rps++ = GPIO_BASE | GPIO1_HI;
+	*rps++ = S626_RPS_LDREG | (S626_P_GPIO >> 2); /* End ADC Start pulse. */
+	*rps++ = S626_GPIO_BASE | S626_GPIO1_HI;
 
 	/*
 	 * Wait for the data from the last conversion of interest to arrive
 	 * in FB BUFFER 1 register.
 	 */
-	*rps++ = RPS_PAUSE | RPS_GPIO2;	/* Wait for ADC done. */
+	*rps++ = S626_RPS_PAUSE | S626_RPS_GPIO2;	/* Wait for ADC done. */
 
 	/* Transfer final ADC data from FB BUFFER 1 register to DMA buffer. */
-	*rps++ = RPS_STREG | (S626_BUGFIX_STREG(P_FB_BUFFER1) >> 2);
+	*rps++ = S626_RPS_STREG | (S626_BUGFIX_STREG(S626_P_FB_BUFFER1) >> 2);
 	*rps++ = (uint32_t)devpriv->ana_buf.physical_base +
 		 (devpriv->adc_items << 2);
 
 	/* Indicate ADC scan loop is finished. */
 	/* Signal ReadADC() that scan is done. */
-	/* *rps++= RPS_CLRSIGNAL | RPS_SIGADC; */
+	/* *rps++= S626_RPS_CLRSIGNAL | S626_RPS_SIGADC; */
 
 	/* invoke interrupt */
 	if (devpriv->ai_cmd_running == 1)
-		*rps++ = RPS_IRQ;
+		*rps++ = S626_RPS_IRQ;
 
 	/* Restart RPS program at its beginning. */
-	*rps++ = RPS_JUMP;	/* Branch to start of RPS program. */
+	*rps++ = S626_RPS_JUMP;	/* Branch to start of RPS program. */
 	*rps++ = (uint32_t)devpriv->rps_buf.physical_base;
 
 	/* End of RPS program build */
@@ -1816,10 +1846,10 @@ static int s626_ai_rinsn(struct comedi_device *dev,
 	int32_t *readaddr;
 
 	/* Trigger ADC scan loop start */
-	s626_mc_enable(dev, MC2_ADC_RPS, P_MC2);
+	s626_mc_enable(dev, S626_MC2_ADC_RPS, S626_P_MC2);
 
 	/* Wait until ADC scan loop is finished (RPS Signal 0 reset) */
-	while (s626_mc_test(dev, MC2_ADC_RPS, P_MC2))
+	while (s626_mc_test(dev, S626_MC2_ADC_RPS, S626_P_MC2))
 		;
 
 	/*
@@ -1859,29 +1889,32 @@ static int s626_ai_insn_read(struct comedi_device *dev,
 	 *  appropriate for register programming.
 	 */
 	if (range == 0)
-		adc_spec = (chan << 8) | (GSEL_BIPOLAR5V);
+		adc_spec = (chan << 8) | (S626_GSEL_BIPOLAR5V);
 	else
-		adc_spec = (chan << 8) | (GSEL_BIPOLAR10V);
+		adc_spec = (chan << 8) | (S626_GSEL_BIPOLAR10V);
 
 	/* Switch ADC analog gain. */
-	s626_debi_write(dev, LP_GSEL, adc_spec);	/* Set gain. */
+	s626_debi_write(dev, S626_LP_GSEL, adc_spec);	/* Set gain. */
 
 	/* Select ADC analog input channel. */
-	s626_debi_write(dev, LP_ISEL, adc_spec);	/* Select channel. */
+	s626_debi_write(dev, S626_LP_ISEL, adc_spec);	/* Select channel. */
 
 	for (n = 0; n < insn->n; n++) {
 		/* Delay 10 microseconds for analog input settling. */
 		udelay(10);
 
 		/* Start ADC by pulsing GPIO1 low */
-		gpio_image = readl(devpriv->mmio + P_GPIO);
+		gpio_image = readl(devpriv->mmio + S626_P_GPIO);
 		/* Assert ADC Start command */
-		writel(gpio_image & ~GPIO1_HI, devpriv->mmio + P_GPIO);
+		writel(gpio_image & ~S626_GPIO1_HI,
+		       devpriv->mmio + S626_P_GPIO);
 		/* and stretch it out */
-		writel(gpio_image & ~GPIO1_HI, devpriv->mmio + P_GPIO);
-		writel(gpio_image & ~GPIO1_HI, devpriv->mmio + P_GPIO);
+		writel(gpio_image & ~S626_GPIO1_HI,
+		       devpriv->mmio + S626_P_GPIO);
+		writel(gpio_image & ~S626_GPIO1_HI,
+		       devpriv->mmio + S626_P_GPIO);
 		/* Negate ADC Start command */
-		writel(gpio_image | GPIO1_HI, devpriv->mmio + P_GPIO);
+		writel(gpio_image | S626_GPIO1_HI, devpriv->mmio + S626_P_GPIO);
 
 		/*
 		 * Wait for ADC to complete (GPIO2 is asserted high when
@@ -1890,12 +1923,12 @@ static int s626_ai_insn_read(struct comedi_device *dev,
 		 */
 
 		/* Wait for ADC done */
-		while (!(readl(devpriv->mmio + P_PSR) & PSR_GPIO2))
+		while (!(readl(devpriv->mmio + S626_P_PSR) & S626_PSR_GPIO2))
 			;
 
 		/* Fetch ADC data */
 		if (n != 0) {
-			tmp = readl(devpriv->mmio + P_FB_BUFFER1);
+			tmp = readl(devpriv->mmio + S626_P_FB_BUFFER1);
 			data[n - 1] = s626_ai_reg_to_uint(tmp);
 		}
 
@@ -1915,26 +1948,26 @@ static int s626_ai_insn_read(struct comedi_device *dev,
 	 * Start a dummy conversion to cause the data from the
 	 * previous conversion to be shifted in.
 	 */
-	gpio_image = readl(devpriv->mmio + P_GPIO);
+	gpio_image = readl(devpriv->mmio + S626_P_GPIO);
 	/* Assert ADC Start command */
-	writel(gpio_image & ~GPIO1_HI, devpriv->mmio + P_GPIO);
+	writel(gpio_image & ~S626_GPIO1_HI, devpriv->mmio + S626_P_GPIO);
 	/* and stretch it out */
-	writel(gpio_image & ~GPIO1_HI, devpriv->mmio + P_GPIO);
-	writel(gpio_image & ~GPIO1_HI, devpriv->mmio + P_GPIO);
+	writel(gpio_image & ~S626_GPIO1_HI, devpriv->mmio + S626_P_GPIO);
+	writel(gpio_image & ~S626_GPIO1_HI, devpriv->mmio + S626_P_GPIO);
 	/* Negate ADC Start command */
-	writel(gpio_image | GPIO1_HI, devpriv->mmio + P_GPIO);
+	writel(gpio_image | S626_GPIO1_HI, devpriv->mmio + S626_P_GPIO);
 
 	/* Wait for the data to arrive in FB BUFFER 1 register. */
 
 	/* Wait for ADC done */
-	while (!(readl(devpriv->mmio + P_PSR) & PSR_GPIO2))
+	while (!(readl(devpriv->mmio + S626_P_PSR) & S626_PSR_GPIO2))
 		;
 
 	/* Fetch ADC data from audio interface's input shift register. */
 
 	/* Fetch ADC data */
 	if (n != 0) {
-		tmp = readl(devpriv->mmio + P_FB_BUFFER1);
+		tmp = readl(devpriv->mmio + S626_P_FB_BUFFER1);
 		data[n - 1] = s626_ai_reg_to_uint(tmp);
 	}
 
@@ -1947,12 +1980,12 @@ static int s626_ai_load_polllist(uint8_t *ppl, struct comedi_cmd *cmd)
 
 	for (n = 0; n < cmd->chanlist_len; n++) {
 		if (CR_RANGE(cmd->chanlist[n]) == 0)
-			ppl[n] = CR_CHAN(cmd->chanlist[n]) | RANGE_5V;
+			ppl[n] = CR_CHAN(cmd->chanlist[n]) | S626_RANGE_5V;
 		else
-			ppl[n] = CR_CHAN(cmd->chanlist[n]) | RANGE_10V;
+			ppl[n] = CR_CHAN(cmd->chanlist[n]) | S626_RANGE_10V;
 	}
 	if (n != 0)
-		ppl[n - 1] |= EOPL;
+		ppl[n - 1] |= S626_EOPL;
 
 	return n;
 }
@@ -1964,7 +1997,7 @@ static int s626_ai_inttrig(struct comedi_device *dev,
 		return -EINVAL;
 
 	/* Start executing the RPS program */
-	s626_mc_enable(dev, MC1_ERPS1, P_MC1);
+	s626_mc_enable(dev, S626_MC1_ERPS1, S626_P_MC1);
 
 	s->async->inttrig = NULL;
 
@@ -2005,15 +2038,21 @@ static void s626_timer_load(struct comedi_device *dev,
 			    const struct s626_enc_info *k, int tick)
 {
 	uint16_t setup =
-		(LOADSRC_INDX << BF_LOADSRC) |	/* Preload upon index. */
-		(INDXSRC_SOFT << BF_INDXSRC) |	/* Disable hardware index. */
-		(CLKSRC_TIMER << BF_CLKSRC) |	/* Operating mode is Timer. */
-		(CLKPOL_POS << BF_CLKPOL) |	/* Active high clock. */
-		(CNTDIR_DOWN << BF_CLKPOL) |	/* Count direction is Down. */
-		(CLKMULT_1X << BF_CLKMULT) |	/* Clock multiplier is 1x. */
-		(CLKENAB_INDEX << BF_CLKENAB);
-	uint16_t value_latchsrc = LATCHSRC_A_INDXA;
-	/* uint16_t enab = CLKENAB_ALWAYS; */
+		/* Preload upon index. */
+		(S626_LOADSRC_INDX << S626_BF_LOADSRC) |
+		/* Disable hardware index. */
+		(S626_INDXSRC_SOFT << S626_BF_INDXSRC) |
+		/* Operating mode is Timer. */
+		(S626_CLKSRC_TIMER << S626_BF_CLKSRC) |
+		/* Active high clock. */
+		(S626_CLKPOL_POS << S626_BF_CLKPOL) |
+		/* Count direction is Down. */
+		(S626_CNTDIR_DOWN << S626_BF_CLKPOL) |
+		/* Clock multiplier is 1x. */
+		(S626_CLKMULT_1X << S626_BF_CLKMULT) |
+		(S626_CLKENAB_INDEX << S626_BF_CLKENAB);
+	uint16_t value_latchsrc = S626_LATCHSRC_A_INDXA;
+	/* uint16_t enab = S626_CLKENAB_ALWAYS; */
 
 	k->set_mode(dev, k, setup, false);
 
@@ -2031,7 +2070,7 @@ static void s626_timer_load(struct comedi_device *dev,
 	k->set_load_trig(dev, k, 1);
 
 	/* set interrupt on overflow */
-	k->set_int_src(dev, k, INTSRC_OVER);
+	k->set_int_src(dev, k, S626_INTSRC_OVER);
 
 	s626_set_latch_source(dev, k, value_latchsrc);
 	/* k->set_enable(dev, k, (uint16_t)(enab != 0)); */
@@ -2052,10 +2091,10 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		return -EBUSY;
 	}
 	/* disable interrupt */
-	writel(0, devpriv->mmio + P_IER);
+	writel(0, devpriv->mmio + S626_P_IER);
 
 	/* clear interrupt request */
-	writel(IRQ_RPS1 | IRQ_GPIO3, devpriv->mmio + P_ISR);
+	writel(S626_IRQ_RPS1 | S626_IRQ_GPIO3, devpriv->mmio + S626_P_ISR);
 
 	/* clear any pending interrupt */
 	s626_dio_clear_irq(dev);
@@ -2092,7 +2131,7 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 		/* load timer value and enable interrupt */
 		s626_timer_load(dev, k, tick);
-		k->set_enable(dev, k, CLKENAB_ALWAYS);
+		k->set_enable(dev, k, S626_CLKENAB_ALWAYS);
 		break;
 	case TRIG_EXT:
 		/* set the digital line and interrupt for scan trigger */
@@ -2115,7 +2154,7 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 		/* load timer value and enable interrupt */
 		s626_timer_load(dev, k, tick);
-		k->set_enable(dev, k, CLKENAB_INDEX);
+		k->set_enable(dev, k, S626_CLKENAB_INDEX);
 		break;
 	case TRIG_EXT:
 		/* set the digital line and interrupt for convert trigger */
@@ -2143,10 +2182,10 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	switch (cmd->start_src) {
 	case TRIG_NOW:
 		/* Trigger ADC scan loop start */
-		/* s626_mc_enable(dev, MC2_ADC_RPS, P_MC2); */
+		/* s626_mc_enable(dev, S626_MC2_ADC_RPS, S626_P_MC2); */
 
 		/* Start executing the RPS program */
-		s626_mc_enable(dev, MC1_ERPS1, P_MC1);
+		s626_mc_enable(dev, S626_MC1_ERPS1, S626_P_MC1);
 		s->async->inttrig = NULL;
 		break;
 	case TRIG_EXT:
@@ -2160,7 +2199,7 @@ static int s626_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	}
 
 	/* enable interrupt */
-	writel(IRQ_GPIO3 | IRQ_RPS1, devpriv->mmio + P_IER);
+	writel(S626_IRQ_GPIO3 | S626_IRQ_RPS1, devpriv->mmio + S626_P_IER);
 
 	return 0;
 }
@@ -2278,10 +2317,10 @@ static int s626_ai_cancel(struct comedi_device *dev, struct comedi_subdevice *s)
 	struct s626_private *devpriv = dev->private;
 
 	/* Stop RPS program in case it is currently running */
-	s626_mc_disable(dev, MC1_ERPS1, P_MC1);
+	s626_mc_disable(dev, S626_MC1_ERPS1, S626_P_MC1);
 
 	/* disable master interrupt */
-	writel(0, devpriv->mmio + P_IER);
+	writel(0, devpriv->mmio + S626_P_IER);
 
 	devpriv->ai_cmd_running = 0;
 
@@ -2332,18 +2371,18 @@ static void s626_dio_init(struct comedi_device *dev)
 	uint16_t group;
 
 	/* Prepare to treat writes to WRCapSel as capture disables. */
-	s626_debi_write(dev, LP_MISC1, MISC1_NOEDCAP);
+	s626_debi_write(dev, S626_LP_MISC1, S626_MISC1_NOEDCAP);
 
 	/* For each group of sixteen channels ... */
 	for (group = 0; group < S626_DIO_BANKS; group++) {
 		/* Disable all interrupts */
-		s626_debi_write(dev, LP_WRINTSEL(group), 0);
+		s626_debi_write(dev, S626_LP_WRINTSEL(group), 0);
 		/* Disable all event captures */
-		s626_debi_write(dev, LP_WRCAPSEL(group), 0xffff);
+		s626_debi_write(dev, S626_LP_WRCAPSEL(group), 0xffff);
 		/* Init all DIOs to default edge polarity */
-		s626_debi_write(dev, LP_WREDGSEL(group), 0);
+		s626_debi_write(dev, S626_LP_WREDGSEL(group), 0);
 		/* Program all outputs to inactive state */
-		s626_debi_write(dev, LP_WRDOUT(group), 0);
+		s626_debi_write(dev, S626_LP_WRDOUT(group), 0);
 	}
 }
 
@@ -2355,9 +2394,9 @@ static int s626_dio_insn_bits(struct comedi_device *dev,
 	unsigned long group = (unsigned long)s->private;
 
 	if (comedi_dio_update_state(s, data))
-		s626_debi_write(dev, LP_WRDOUT(group), s->state);
+		s626_debi_write(dev, S626_LP_WRDOUT(group), s->state);
 
-	data[1] = s626_debi_read(dev, LP_RDDIN(group));
+	data[1] = s626_debi_read(dev, S626_LP_RDDIN(group));
 
 	return insn->n;
 }
@@ -2374,7 +2413,7 @@ static int s626_dio_insn_config(struct comedi_device *dev,
 	if (ret)
 		return ret;
 
-	s626_debi_write(dev, LP_WRDOUT(group), s->io_bits);
+	s626_debi_write(dev, S626_LP_WRDOUT(group), s->io_bits);
 
 	return insn->n;
 }
@@ -2393,16 +2432,21 @@ static int s626_enc_insn_config(struct comedi_device *dev,
 				struct comedi_insn *insn, unsigned int *data)
 {
 	uint16_t setup =
-		(LOADSRC_INDX << BF_LOADSRC) |	/* Preload upon index. */
-		(INDXSRC_SOFT << BF_INDXSRC) |	/* Disable hardware index. */
-		(CLKSRC_COUNTER << BF_CLKSRC) |	/* Operating mode is Counter. */
-		(CLKPOL_POS << BF_CLKPOL) |	/* Active high clock. */
-		(CLKMULT_1X << BF_CLKMULT) |	/* Clock multiplier is 1x. */
-		(CLKENAB_INDEX << BF_CLKENAB);
+		/* Preload upon index. */
+		(S626_LOADSRC_INDX << S626_BF_LOADSRC) |
+		/* Disable hardware index. */
+		(S626_INDXSRC_SOFT << S626_BF_INDXSRC) |
+		/* Operating mode is Counter. */
+		(S626_CLKSRC_COUNTER << S626_BF_CLKSRC) |
+		/* Active high clock. */
+		(S626_CLKPOL_POS << S626_BF_CLKPOL) |
+		/* Clock multiplier is 1x. */
+		(S626_CLKMULT_1X << S626_BF_CLKMULT) |
+		(S626_CLKENAB_INDEX << S626_BF_CLKENAB);
 	/* uint16_t disable_int_src = true; */
 	/* uint32_t Preloadvalue;              //Counter initial value */
-	uint16_t value_latchsrc = LATCHSRC_AB_READ;
-	uint16_t enab = CLKENAB_ALWAYS;
+	uint16_t value_latchsrc = S626_LATCHSRC_AB_READ;
+	uint16_t enab = S626_CLKENAB_ALWAYS;
 	const struct s626_enc_info *k =
 		&s626_enc_chan_info[CR_CHAN(insn->chanspec)];
 
@@ -2454,9 +2498,9 @@ static int s626_enc_insn_write(struct comedi_device *dev,
 
 static void s626_write_misc2(struct comedi_device *dev, uint16_t new_image)
 {
-	s626_debi_write(dev, LP_MISC1, MISC1_WENABLE);
-	s626_debi_write(dev, LP_WRMISC2, new_image);
-	s626_debi_write(dev, LP_MISC1, MISC1_WDISABLE);
+	s626_debi_write(dev, S626_LP_MISC1, S626_MISC1_WENABLE);
+	s626_debi_write(dev, S626_LP_WRMISC2, new_image);
+	s626_debi_write(dev, S626_LP_MISC1, S626_MISC1_WDISABLE);
 }
 
 static void s626_close_dma_b(struct comedi_device *dev,
@@ -2484,13 +2528,20 @@ static void s626_counters_init(struct comedi_device *dev)
 	int chan;
 	const struct s626_enc_info *k;
 	uint16_t setup =
-		(LOADSRC_INDX << BF_LOADSRC) |	/* Preload upon index. */
-		(INDXSRC_SOFT << BF_INDXSRC) |	/* Disable hardware index. */
-		(CLKSRC_COUNTER << BF_CLKSRC) |	/* Operating mode is counter. */
-		(CLKPOL_POS << BF_CLKPOL) |	/* Active high clock. */
-		(CNTDIR_UP << BF_CLKPOL) |	/* Count direction is up. */
-		(CLKMULT_1X << BF_CLKMULT) |	/* Clock multiplier is 1x. */
-		(CLKENAB_INDEX << BF_CLKENAB);	/* Enabled by index */
+		/* Preload upon index. */
+		(S626_LOADSRC_INDX << S626_BF_LOADSRC) |
+		/* Disable hardware index. */
+		(S626_INDXSRC_SOFT << S626_BF_INDXSRC) |
+		/* Operating mode is counter. */
+		(S626_CLKSRC_COUNTER << S626_BF_CLKSRC) |
+		/* Active high clock. */
+		(S626_CLKPOL_POS << S626_BF_CLKPOL) |
+		/* Count direction is up. */
+		(S626_CNTDIR_UP << S626_BF_CLKPOL) |
+		/* Clock multiplier is 1x. */
+		(S626_CLKMULT_1X << S626_BF_CLKMULT) |
+		/* Enabled by index */
+		(S626_CLKENAB_INDEX << S626_BF_CLKENAB);
 
 	/*
 	 * Disable all counter interrupts and clear any captured counter events.
@@ -2500,7 +2551,7 @@ static void s626_counters_init(struct comedi_device *dev)
 		k->set_mode(dev, k, setup, true);
 		k->set_int_src(dev, k, 0);
 		k->reset_cap_flags(dev, k);
-		k->set_enable(dev, k, CLKENAB_ALWAYS);
+		k->set_enable(dev, k, S626_CLKENAB_ALWAYS);
 	}
 }
 
@@ -2511,13 +2562,13 @@ static int s626_allocate_dma_buffers(struct comedi_device *dev)
 	void *addr;
 	dma_addr_t appdma;
 
-	addr = pci_alloc_consistent(pcidev, DMABUF_SIZE, &appdma);
+	addr = pci_alloc_consistent(pcidev, S626_DMABUF_SIZE, &appdma);
 	if (!addr)
 		return -ENOMEM;
 	devpriv->ana_buf.logical_base = addr;
 	devpriv->ana_buf.physical_base = appdma;
 
-	addr = pci_alloc_consistent(pcidev, DMABUF_SIZE, &appdma);
+	addr = pci_alloc_consistent(pcidev, S626_DMABUF_SIZE, &appdma);
 	if (!addr)
 		return -ENOMEM;
 	devpriv->rps_buf.logical_base = addr;
@@ -2534,7 +2585,8 @@ static void s626_initialize(struct comedi_device *dev)
 	int i;
 
 	/* Enable DEBI and audio pins, enable I2C interface */
-	s626_mc_enable(dev, MC1_DEBI | MC1_AUDIO | MC1_I2C, P_MC1);
+	s626_mc_enable(dev, S626_MC1_DEBI | S626_MC1_AUDIO | S626_MC1_I2C,
+		       S626_P_MC1);
 
 	/*
 	 * Configure DEBI operating mode
@@ -2544,14 +2596,15 @@ static void s626_initialize(struct comedi_device *dev)
 	 *  Set up byte lane steering
 	 *  Intel-compatible local bus (DEBI never times out)
 	 */
-	writel(DEBI_CFG_SLAVE16 | (DEBI_TOUT << DEBI_CFG_TOUT_BIT) |
-	       DEBI_SWAP | DEBI_CFG_INTEL, devpriv->mmio + P_DEBICFG);
+	writel(S626_DEBI_CFG_SLAVE16 |
+	       (S626_DEBI_TOUT << S626_DEBI_CFG_TOUT_BIT) | S626_DEBI_SWAP |
+	       S626_DEBI_CFG_INTEL, devpriv->mmio + S626_P_DEBICFG);
 
 	/* Disable MMU paging */
-	writel(DEBI_PAGE_DISABLE, devpriv->mmio + P_DEBIPAGE);
+	writel(S626_DEBI_PAGE_DISABLE, devpriv->mmio + S626_P_DEBIPAGE);
 
 	/* Init GPIO so that ADC Start* is negated */
-	writel(GPIO_BASE | GPIO1_HI, devpriv->mmio + P_GPIO);
+	writel(S626_GPIO_BASE | S626_GPIO1_HI, devpriv->mmio + S626_P_GPIO);
 
 	/* I2C device address for onboard eeprom (revb) */
 	devpriv->i2c_adrs = 0xA0;
@@ -2560,9 +2613,10 @@ static void s626_initialize(struct comedi_device *dev)
 	 * Issue an I2C ABORT command to halt any I2C
 	 * operation in progress and reset BUSY flag.
 	 */
-	writel(I2C_CLKSEL | I2C_ABORT, devpriv->mmio + P_I2CSTAT);
-	s626_mc_enable(dev, MC2_UPLD_IIC, P_MC2);
-	while (!(readl(devpriv->mmio + P_MC2) & MC2_UPLD_IIC))
+	writel(S626_I2C_CLKSEL | S626_I2C_ABORT,
+	       devpriv->mmio + S626_P_I2CSTAT);
+	s626_mc_enable(dev, S626_MC2_UPLD_IIC, S626_P_MC2);
+	while (!(readl(devpriv->mmio + S626_P_MC2) & S626_MC2_UPLD_IIC))
 		;
 
 	/*
@@ -2570,9 +2624,9 @@ static void s626_initialize(struct comedi_device *dev)
 	 * reg twice to reset all  I2C error flags.
 	 */
 	for (i = 0; i < 2; i++) {
-		writel(I2C_CLKSEL, devpriv->mmio + P_I2CSTAT);
-		s626_mc_enable(dev, MC2_UPLD_IIC, P_MC2);
-		while (!s626_mc_test(dev, MC2_UPLD_IIC, P_MC2))
+		writel(S626_I2C_CLKSEL, devpriv->mmio + S626_P_I2CSTAT);
+		s626_mc_enable(dev, S626_MC2_UPLD_IIC, S626_P_MC2);
+		while (!s626_mc_test(dev, S626_MC2_UPLD_IIC, S626_P_MC2))
 			;
 	}
 
@@ -2582,19 +2636,20 @@ static void s626_initialize(struct comedi_device *dev)
 	 * DAC data setup times are satisfied, enable DAC serial
 	 * clock out.
 	 */
-	writel(ACON2_INIT, devpriv->mmio + P_ACON2);
+	writel(S626_ACON2_INIT, devpriv->mmio + S626_P_ACON2);
 
 	/*
 	 * Set up TSL1 slot list, which is used to control the
-	 * accumulation of ADC data: RSD1 = shift data in on SD1.
-	 * SIB_A1  = store data uint8_t at next available location
+	 * accumulation of ADC data: S626_RSD1 = shift data in on SD1.
+	 * S626_SIB_A1  = store data uint8_t at next available location
 	 * in FB BUFFER1 register.
 	 */
-	writel(RSD1 | SIB_A1, devpriv->mmio + P_TSL1);
-	writel(RSD1 | SIB_A1 | EOS, devpriv->mmio + P_TSL1 + 4);
+	writel(S626_RSD1 | S626_SIB_A1, devpriv->mmio + S626_P_TSL1);
+	writel(S626_RSD1 | S626_SIB_A1 | S626_EOS,
+	       devpriv->mmio + S626_P_TSL1 + 4);
 
 	/* Enable TSL1 slot list so that it executes all the time */
-	writel(ACON1_ADCSTART, devpriv->mmio + P_ACON1);
+	writel(S626_ACON1_ADCSTART, devpriv->mmio + S626_P_ACON1);
 
 	/*
 	 * Initialize RPS registers used for ADC
@@ -2602,11 +2657,11 @@ static void s626_initialize(struct comedi_device *dev)
 
 	/* Physical start of RPS program */
 	writel((uint32_t)devpriv->rps_buf.physical_base,
-	       devpriv->mmio + P_RPSADDR1);
+	       devpriv->mmio + S626_P_RPSADDR1);
 	/* RPS program performs no explicit mem writes */
-	writel(0, devpriv->mmio + P_RPSPAGE1);
+	writel(0, devpriv->mmio + S626_P_RPSPAGE1);
 	/* Disable RPS timeouts */
-	writel(0, devpriv->mmio + P_RPS1_TOUT);
+	writel(0, devpriv->mmio + S626_P_RPS1_TOUT);
 
 #if 0
 	/*
@@ -2626,7 +2681,7 @@ static void s626_initialize(struct comedi_device *dev)
 		unsigned int data[16];
 
 		/* Create a simple polling list for analog input channel 0 */
-		poll_list = EOPL;
+		poll_list = S626_EOPL;
 		s626_reset_adc(dev, &poll_list);
 
 		/* Get initial ADC value */
@@ -2661,7 +2716,7 @@ static void s626_initialize(struct comedi_device *dev)
 	 *   burst length = 1 DWORD
 	 *   threshold = 1 DWORD.
 	 */
-	writel(0, devpriv->mmio + P_PCI_BT_A);
+	writel(0, devpriv->mmio + S626_P_PCI_BT_A);
 
 	/*
 	 * Init Audio2's output DMA physical addresses.  The protection
@@ -2670,17 +2725,17 @@ static void s626_initialize(struct comedi_device *dev)
 	 * enabled.
 	 */
 	phys_buf = devpriv->ana_buf.physical_base +
-		   (DAC_WDMABUF_OS * sizeof(uint32_t));
-	writel((uint32_t)phys_buf, devpriv->mmio + P_BASEA2_OUT);
+		   (S626_DAC_WDMABUF_OS * sizeof(uint32_t));
+	writel((uint32_t)phys_buf, devpriv->mmio + S626_P_BASEA2_OUT);
 	writel((uint32_t)(phys_buf + sizeof(uint32_t)),
-	       devpriv->mmio + P_PROTA2_OUT);
+	       devpriv->mmio + S626_P_PROTA2_OUT);
 
 	/*
 	 * Cache Audio2's output DMA buffer logical address.  This is
 	 * where DAC data is buffered for A2 output DMA transfers.
 	 */
 	devpriv->dac_wbuf = (uint32_t *)devpriv->ana_buf.logical_base +
-			    DAC_WDMABUF_OS;
+			    S626_DAC_WDMABUF_OS;
 
 	/*
 	 * Audio2's output channels does not use paging.  The
@@ -2688,7 +2743,7 @@ static void s626_initialize(struct comedi_device *dev)
 	 * DMAC will automatically halt and its PCI address pointer
 	 * will be reset when the protection address is reached.
 	 */
-	writel(8, devpriv->mmio + P_PAGEA2_OUT);
+	writel(8, devpriv->mmio + S626_P_PAGEA2_OUT);
 
 	/*
 	 * Initialize time slot list 2 (TSL2), which is used to control
@@ -2703,7 +2758,8 @@ static void s626_initialize(struct comedi_device *dev)
 	 */
 
 	/* Slot 0: Trap TSL execution, shift 0xFF into FB_BUFFER2 */
-	writel(XSD2 | RSD3 | SIB_A2 | EOS, devpriv->mmio + S626_VECTPORT(0));
+	writel(S626_XSD2 | S626_RSD3 | S626_SIB_A2 | S626_EOS,
+	       devpriv->mmio + S626_VECTPORT(0));
 
 	/*
 	 * Initialize slot 1, which is constant.  Slot 1 causes a
@@ -2715,10 +2771,10 @@ static void s626_initialize(struct comedi_device *dev)
 	 */
 
 	/* Slot 1: Fetch DWORD from Audio2's output FIFO */
-	writel(LF_A2, devpriv->mmio + S626_VECTPORT(1));
+	writel(S626_LF_A2, devpriv->mmio + S626_VECTPORT(1));
 
 	/* Start DAC's audio interface (TSL2) running */
-	writel(ACON1_DACSTART, devpriv->mmio + P_ACON1);
+	writel(S626_ACON1_DACSTART, devpriv->mmio + S626_P_ACON1);
 
 	/*
 	 * Init Trim DACs to calibrated values.  Do it twice because the
@@ -2752,8 +2808,8 @@ static void s626_initialize(struct comedi_device *dev)
 	 * standard DIO (vs. counter overflow) mode, disable the battery
 	 * charger, and reset the watchdog interval selector to zero.
 	 */
-	s626_write_misc2(dev, (s626_debi_read(dev, LP_RDMISC2) &
-			       MISC2_BATT_ENABLE));
+	s626_write_misc2(dev, (s626_debi_read(dev, S626_LP_RDMISC2) &
+			       S626_MISC2_BATT_ENABLE));
 
 	/* Initialize the digital I/O subsystem */
 	s626_dio_init(dev);
@@ -2780,10 +2836,10 @@ static int s626_auto_attach(struct comedi_device *dev,
 		return -ENOMEM;
 
 	/* disable master interrupt */
-	writel(0, devpriv->mmio + P_IER);
+	writel(0, devpriv->mmio + S626_P_IER);
 
 	/* soft reset */
-	writel(MC1_SOFT_RESET, devpriv->mmio + P_MC1);
+	writel(S626_MC1_SOFT_RESET, devpriv->mmio + S626_P_MC1);
 
 	/* DMA FIXME DMA// */
 
@@ -2894,20 +2950,22 @@ static void s626_detach(struct comedi_device *dev)
 		if (devpriv->mmio) {
 			/* interrupt mask */
 			/* Disable master interrupt */
-			writel(0, devpriv->mmio + P_IER);
+			writel(0, devpriv->mmio + S626_P_IER);
 			/* Clear board's IRQ status flag */
-			writel(IRQ_GPIO3 | IRQ_RPS1,
-			       devpriv->mmio + P_ISR);
+			writel(S626_IRQ_GPIO3 | S626_IRQ_RPS1,
+			       devpriv->mmio + S626_P_ISR);
 
 			/* Disable the watchdog timer and battery charger. */
 			s626_write_misc2(dev, 0);
 
 			/* Close all interfaces on 7146 device */
-			writel(MC1_SHUTDOWN, devpriv->mmio + P_MC1);
-			writel(ACON1_BASE, devpriv->mmio + P_ACON1);
+			writel(S626_MC1_SHUTDOWN, devpriv->mmio + S626_P_MC1);
+			writel(S626_ACON1_BASE, devpriv->mmio + S626_P_ACON1);
 
-			s626_close_dma_b(dev, &devpriv->rps_buf, DMABUF_SIZE);
-			s626_close_dma_b(dev, &devpriv->ana_buf, DMABUF_SIZE);
+			s626_close_dma_b(dev, &devpriv->rps_buf,
+					 S626_DMABUF_SIZE);
+			s626_close_dma_b(dev, &devpriv->ana_buf,
+					 S626_DMABUF_SIZE);
 		}
 
 		if (dev->irq)
diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h
index 605926ed861b..9b6ab0d398d6 100644
--- a/drivers/staging/comedi/drivers/s626.h
+++ b/drivers/staging/comedi/drivers/s626.h
@@ -22,8 +22,7 @@
 #ifndef S626_H_INCLUDED
 #define S626_H_INCLUDED
 
-#define S626_SIZE		0x200
-#define DMABUF_SIZE		4096	/* 4k pages */
+#define S626_DMABUF_SIZE	4096	/* 4k pages */
 
 #define S626_ADC_CHANNELS       16
 #define S626_DAC_CHANNELS       4
@@ -33,585 +32,575 @@
 #define S626_DIO_EXTCHANS	40	/* Number of extended-capability
 					 * DIO channels. */
 
-#define NUM_TRIMDACS		12	/* Number of valid TrimDAC channels. */
+#define S626_NUM_TRIMDACS	12	/* Number of valid TrimDAC channels. */
 
 /* PCI bus interface types. */
-#define INTEL			1	/* Intel bus type. */
-#define MOTOROLA		2	/* Motorola bus type. */
+#define S626_INTEL		1	/* Intel bus type. */
+#define S626_MOTOROLA		2	/* Motorola bus type. */
 
-#define PLATFORM		INTEL	/* *** SELECT PLATFORM TYPE *** */
+#define S626_PLATFORM		S626_INTEL /* *** SELECT PLATFORM TYPE *** */
 
-#define RANGE_5V                0x10	/* +/-5V range */
-#define RANGE_10V               0x00	/* +/-10V range */
+#define S626_RANGE_5V		0x10	/* +/-5V range */
+#define S626_RANGE_10V		0x00	/* +/-10V range */
 
-#define EOPL			0x80	/* End of ADC poll list marker. */
-#define GSEL_BIPOLAR5V		0x00F0	/* LP_GSEL setting for 5V bipolar. */
-#define GSEL_BIPOLAR10V		0x00A0	/* LP_GSEL setting for 10V bipolar. */
+#define S626_EOPL		0x80	/* End of ADC poll list marker. */
+#define S626_GSEL_BIPOLAR5V	0x00F0	/* S626_LP_GSEL setting 5V bipolar. */
+#define S626_GSEL_BIPOLAR10V	0x00A0	/* S626_LP_GSEL setting 10V bipolar. */
 
 /* Error codes that must be visible to this base class. */
-#define ERR_ILLEGAL_PARM	0x00010000	/* Illegal function parameter
+#define S626_ERR_ILLEGAL_PARM	0x00010000	/* Illegal function parameter
 						 * value was specified. */
-#define ERR_I2C			0x00020000	/* I2C error. */
-#define ERR_COUNTERSETUP	0x00200000	/* Illegal setup specified for
+#define S626_ERR_I2C		0x00020000	/* I2C error. */
+#define S626_ERR_COUNTERSETUP	0x00200000	/* Illegal setup specified for
 						 * counter channel. */
-#define ERR_DEBI_TIMEOUT	0x00400000	/* DEBI transfer timed out. */
+#define S626_ERR_DEBI_TIMEOUT	0x00400000	/* DEBI transfer timed out. */
 
 /*
  * Organization (physical order) and size (in DWORDs) of logical DMA buffers
  * contained by ANA_DMABUF.
  */
-#define ADC_DMABUF_DWORDS	40	/* ADC DMA buffer must hold 16 samples,
+#define S626_ADC_DMABUF_DWORDS	40	/* ADC DMA buffer must hold 16 samples,
 					 * plus pre/post garbage samples. */
-#define DAC_WDMABUF_DWORDS	1	/* DAC output DMA buffer holds a single
+#define S626_DAC_WDMABUF_DWORDS	1	/* DAC output DMA buffer holds a single
 					 * sample. */
 
 /* All remaining space in 4KB DMA buffer is available for the RPS1 program. */
 
 /* Address offsets, in DWORDS, from base of DMA buffer. */
-#define DAC_WDMABUF_OS		ADC_DMABUF_DWORDS
+#define S626_DAC_WDMABUF_OS	S626_ADC_DMABUF_DWORDS
 
 /*  Interrupt enable bit in ISR and IER. */
-#define IRQ_GPIO3		0x00000040	/* IRQ enable for GPIO3. */
-#define IRQ_RPS1                0x10000000
-#define ISR_AFOU		0x00000800
+#define S626_IRQ_GPIO3		0x00000040	/* IRQ enable for GPIO3. */
+#define S626_IRQ_RPS1		0x10000000
+#define S626_ISR_AFOU		0x00000800
 /* Audio fifo under/overflow  detected. */
 
-#define IRQ_COINT1A             0x0400	/* counter 1A overflow interrupt mask */
-#define IRQ_COINT1B             0x0800	/* counter 1B overflow interrupt mask */
-#define IRQ_COINT2A             0x1000	/* counter 2A overflow interrupt mask */
-#define IRQ_COINT2B             0x2000	/* counter 2B overflow interrupt mask */
-#define IRQ_COINT3A             0x4000	/* counter 3A overflow interrupt mask */
-#define IRQ_COINT3B             0x8000	/* counter 3B overflow interrupt mask */
+#define S626_IRQ_COINT1A	0x0400	/* counter 1A overflow interrupt mask */
+#define S626_IRQ_COINT1B	0x0800	/* counter 1B overflow interrupt mask */
+#define S626_IRQ_COINT2A	0x1000	/* counter 2A overflow interrupt mask */
+#define S626_IRQ_COINT2B	0x2000	/* counter 2B overflow interrupt mask */
+#define S626_IRQ_COINT3A	0x4000	/* counter 3A overflow interrupt mask */
+#define S626_IRQ_COINT3B	0x8000	/* counter 3B overflow interrupt mask */
 
 /* RPS command codes. */
-#define RPS_CLRSIGNAL		0x00000000	/* CLEAR SIGNAL */
-#define RPS_SETSIGNAL		0x10000000	/* SET SIGNAL */
-#define RPS_NOP			0x00000000	/* NOP */
-#define RPS_PAUSE		0x20000000	/* PAUSE */
-#define RPS_UPLOAD		0x40000000	/* UPLOAD */
-#define RPS_JUMP		0x80000000	/* JUMP */
-#define RPS_LDREG		0x90000100	/* LDREG (1 uint32_t only) */
-#define RPS_STREG		0xA0000100	/* STREG (1 uint32_t only) */
-#define RPS_STOP		0x50000000	/* STOP */
-#define RPS_IRQ                 0x60000000	/* IRQ */
-
-#define RPS_LOGICAL_OR		0x08000000	/* Logical OR conditionals. */
-#define RPS_INVERT		0x04000000	/* Test for negated
+#define S626_RPS_CLRSIGNAL	0x00000000	/* CLEAR SIGNAL */
+#define S626_RPS_SETSIGNAL	0x10000000	/* SET SIGNAL */
+#define S626_RPS_NOP		0x00000000	/* NOP */
+#define S626_RPS_PAUSE		0x20000000	/* PAUSE */
+#define S626_RPS_UPLOAD		0x40000000	/* UPLOAD */
+#define S626_RPS_JUMP		0x80000000	/* JUMP */
+#define S626_RPS_LDREG		0x90000100	/* LDREG (1 uint32_t only) */
+#define S626_RPS_STREG		0xA0000100	/* STREG (1 uint32_t only) */
+#define S626_RPS_STOP		0x50000000	/* STOP */
+#define S626_RPS_IRQ		0x60000000	/* IRQ */
+
+#define S626_RPS_LOGICAL_OR	0x08000000	/* Logical OR conditionals. */
+#define S626_RPS_INVERT		0x04000000	/* Test for negated
 						 * semaphores. */
-#define RPS_DEBI		0x00000002	/* DEBI done */
+#define S626_RPS_DEBI		0x00000002	/* DEBI done */
 
-#define RPS_SIG0		0x00200000	/* RPS semaphore 0
+#define S626_RPS_SIG0		0x00200000	/* RPS semaphore 0
 						 * (used by ADC). */
-#define RPS_SIG1		0x00400000	/* RPS semaphore 1
+#define S626_RPS_SIG1		0x00400000	/* RPS semaphore 1
 						 * (used by DAC). */
-#define RPS_SIG2		0x00800000	/* RPS semaphore 2
+#define S626_RPS_SIG2		0x00800000	/* RPS semaphore 2
 						 * (not used). */
-#define RPS_GPIO2		0x00080000	/* RPS GPIO2 */
-#define RPS_GPIO3		0x00100000	/* RPS GPIO3 */
+#define S626_RPS_GPIO2		0x00080000	/* RPS GPIO2 */
+#define S626_RPS_GPIO3		0x00100000	/* RPS GPIO3 */
 
-#define RPS_SIGADC		RPS_SIG0	/* Trigger/status for
+#define S626_RPS_SIGADC		S626_RPS_SIG0	/* Trigger/status for
 						 * ADC's RPS program. */
-#define RPS_SIGDAC		RPS_SIG1	/* Trigger/status for
+#define S626_RPS_SIGDAC		S626_RPS_SIG1	/* Trigger/status for
 						 * DAC's RPS program. */
 
 /* RPS clock parameters. */
-#define RPSCLK_SCALAR		8	/* This is apparent ratio of
+#define S626_RPSCLK_SCALAR	8	/* This is apparent ratio of
 					 * PCI/RPS clks (undocumented!!). */
-#define RPSCLK_PER_US		(33 / RPSCLK_SCALAR)
+#define S626_RPSCLK_PER_US	(33 / S626_RPSCLK_SCALAR)
 					/* Number of RPS clocks in one
 					 * microsecond. */
 
 /* Event counter source addresses. */
-#define SBA_RPS_A0		0x27	/* Time of RPS0 busy, in PCI clocks. */
+#define S626_SBA_RPS_A0		0x27	/* Time of RPS0 busy, in PCI clocks. */
 
 /* GPIO constants. */
-#define GPIO_BASE		0x10004000	/* GPIO 0,2,3 = inputs,
+#define S626_GPIO_BASE		0x10004000	/* GPIO 0,2,3 = inputs,
 						 * GPIO3 = IRQ; GPIO1 = out. */
-#define GPIO1_LO		0x00000000	/* GPIO1 set to LOW. */
-#define GPIO1_HI		0x00001000	/* GPIO1 set to HIGH. */
+#define S626_GPIO1_LO		0x00000000	/* GPIO1 set to LOW. */
+#define S626_GPIO1_HI		0x00001000	/* GPIO1 set to HIGH. */
 
 /* Primary Status Register (PSR) constants. */
-#define PSR_DEBI_E		0x00040000	/* DEBI event flag. */
-#define PSR_DEBI_S		0x00080000	/* DEBI status flag. */
-#define PSR_A2_IN		0x00008000	/* Audio output DMA2 protection
+#define S626_PSR_DEBI_E		0x00040000	/* DEBI event flag. */
+#define S626_PSR_DEBI_S		0x00080000	/* DEBI status flag. */
+#define S626_PSR_A2_IN		0x00008000	/* Audio output DMA2 protection
 						 * address reached. */
-#define PSR_AFOU		0x00000800	/* Audio FIFO under/overflow
+#define S626_PSR_AFOU		0x00000800	/* Audio FIFO under/overflow
 						 * detected. */
-#define PSR_GPIO2		0x00000020	/* GPIO2 input pin: 0=AdcBusy,
+#define S626_PSR_GPIO2		0x00000020	/* GPIO2 input pin: 0=AdcBusy,
 						 * 1=AdcIdle. */
-#define PSR_EC0S		0x00000001	/* Event counter 0 threshold
+#define S626_PSR_EC0S		0x00000001	/* Event counter 0 threshold
 						 * reached. */
 
 /* Secondary Status Register (SSR) constants. */
-#define SSR_AF2_OUT		0x00000200	/* Audio 2 output FIFO
+#define S626_SSR_AF2_OUT	0x00000200	/* Audio 2 output FIFO
 						 * under/overflow detected. */
 
 /* Master Control Register 1 (MC1) constants. */
-#define MC1_SOFT_RESET		0x80000000	/* Invoke 7146 soft reset. */
-#define MC1_SHUTDOWN		0x3FFF0000	/* Shut down all MC1-controlled
+#define S626_MC1_SOFT_RESET	0x80000000	/* Invoke 7146 soft reset. */
+#define S626_MC1_SHUTDOWN	0x3FFF0000	/* Shut down all MC1-controlled
 						 * enables. */
 
-#define MC1_ERPS1		0x2000	/* Enab/disable RPS task 1. */
-#define MC1_ERPS0		0x1000	/* Enab/disable RPS task 0. */
-#define MC1_DEBI		0x0800	/* Enab/disable DEBI pins. */
-#define MC1_AUDIO		0x0200	/* Enab/disable audio port pins. */
-#define MC1_I2C			0x0100	/* Enab/disable I2C interface. */
-#define MC1_A2OUT		0x0008	/* Enab/disable transfer on A2 out. */
-#define MC1_A2IN		0x0004	/* Enab/disable transfer on A2 in. */
-#define MC1_A1IN		0x0001	/* Enab/disable transfer on A1 in. */
+#define S626_MC1_ERPS1		0x2000	/* Enab/disable RPS task 1. */
+#define S626_MC1_ERPS0		0x1000	/* Enab/disable RPS task 0. */
+#define S626_MC1_DEBI		0x0800	/* Enab/disable DEBI pins. */
+#define S626_MC1_AUDIO		0x0200	/* Enab/disable audio port pins. */
+#define S626_MC1_I2C		0x0100	/* Enab/disable I2C interface. */
+#define S626_MC1_A2OUT		0x0008	/* Enab/disable transfer on A2 out. */
+#define S626_MC1_A2IN		0x0004	/* Enab/disable transfer on A2 in. */
+#define S626_MC1_A1IN		0x0001	/* Enab/disable transfer on A1 in. */
 
 /* Master Control Register 2 (MC2) constants. */
-#define MC2_UPLD_DEBI		0x0002	/* Upload DEBI. */
-#define MC2_UPLD_IIC		0x0001	/* Upload I2C. */
-#define MC2_RPSSIG2		0x2000	/* RPS signal 2 (not used). */
-#define MC2_RPSSIG1		0x1000	/* RPS signal 1 (DAC RPS busy). */
-#define MC2_RPSSIG0		0x0800	/* RPS signal 0 (ADC RPS busy). */
+#define S626_MC2_UPLD_DEBI	0x0002	/* Upload DEBI. */
+#define S626_MC2_UPLD_IIC	0x0001	/* Upload I2C. */
+#define S626_MC2_RPSSIG2	0x2000	/* RPS signal 2 (not used). */
+#define S626_MC2_RPSSIG1	0x1000	/* RPS signal 1 (DAC RPS busy). */
+#define S626_MC2_RPSSIG0	0x0800	/* RPS signal 0 (ADC RPS busy). */
 
-#define MC2_ADC_RPS		MC2_RPSSIG0	/* ADC RPS busy. */
-#define MC2_DAC_RPS		MC2_RPSSIG1	/* DAC RPS busy. */
+#define S626_MC2_ADC_RPS	S626_MC2_RPSSIG0	/* ADC RPS busy. */
+#define S626_MC2_DAC_RPS	S626_MC2_RPSSIG1	/* DAC RPS busy. */
 
 /* PCI BUS (SAA7146) REGISTER ADDRESS OFFSETS */
-#define P_PCI_BT_A		0x004C	/* Audio DMA burst/threshold control. */
-#define P_DEBICFG               0x007C	/* DEBI configuration. */
-#define P_DEBICMD               0x0080	/* DEBI command. */
-#define P_DEBIPAGE              0x0084	/* DEBI page. */
-#define P_DEBIAD                0x0088	/* DEBI target address. */
-#define P_I2CCTRL               0x008C	/* I2C control. */
-#define P_I2CSTAT               0x0090	/* I2C status. */
-#define P_BASEA2_IN		0x00AC	/* Audio input 2 base physical DMAbuf
+#define S626_P_PCI_BT_A		0x004C	/* Audio DMA burst/threshold control. */
+#define S626_P_DEBICFG		0x007C	/* DEBI configuration. */
+#define S626_P_DEBICMD		0x0080	/* DEBI command. */
+#define S626_P_DEBIPAGE		0x0084	/* DEBI page. */
+#define S626_P_DEBIAD		0x0088	/* DEBI target address. */
+#define S626_P_I2CCTRL		0x008C	/* I2C control. */
+#define S626_P_I2CSTAT		0x0090	/* I2C status. */
+#define S626_P_BASEA2_IN	0x00AC	/* Audio input 2 base physical DMAbuf
 					 * address. */
-#define P_PROTA2_IN		0x00B0	/* Audio input 2 physical DMAbuf
+#define S626_P_PROTA2_IN	0x00B0	/* Audio input 2 physical DMAbuf
 					 * protection address. */
-#define P_PAGEA2_IN		0x00B4	/* Audio input 2 paging attributes. */
-#define P_BASEA2_OUT		0x00B8	/* Audio output 2 base physical DMAbuf
+#define S626_P_PAGEA2_IN	0x00B4	/* Audio input 2 paging attributes. */
+#define S626_P_BASEA2_OUT	0x00B8	/* Audio output 2 base physical DMAbuf
 					 * address. */
-#define P_PROTA2_OUT		0x00BC	/* Audio output 2 physical DMAbuf
+#define S626_P_PROTA2_OUT	0x00BC	/* Audio output 2 physical DMAbuf
 					 * protection address. */
-#define P_PAGEA2_OUT		0x00C0	/* Audio output 2 paging attributes. */
-#define P_RPSPAGE0              0x00C4	/* RPS0 page. */
-#define P_RPSPAGE1              0x00C8	/* RPS1 page. */
-#define P_RPS0_TOUT		0x00D4	/* RPS0 time-out. */
-#define P_RPS1_TOUT		0x00D8	/* RPS1 time-out. */
-#define P_IER                   0x00DC	/* Interrupt enable. */
-#define P_GPIO                  0x00E0	/* General-purpose I/O. */
-#define P_EC1SSR		0x00E4	/* Event counter set 1 source select. */
-#define P_ECT1R			0x00EC	/* Event counter threshold set 1. */
-#define P_ACON1                 0x00F4	/* Audio control 1. */
-#define P_ACON2                 0x00F8	/* Audio control 2. */
-#define P_MC1                   0x00FC	/* Master control 1. */
-#define P_MC2                   0x0100	/* Master control 2. */
-#define P_RPSADDR0              0x0104	/* RPS0 instruction pointer. */
-#define P_RPSADDR1              0x0108	/* RPS1 instruction pointer. */
-#define P_ISR                   0x010C	/* Interrupt status. */
-#define P_PSR                   0x0110	/* Primary status. */
-#define P_SSR                   0x0114	/* Secondary status. */
-#define P_EC1R			0x0118	/* Event counter set 1. */
-#define P_ADP4			0x0138	/* Logical audio DMA pointer of audio
+#define S626_P_PAGEA2_OUT	0x00C0	/* Audio output 2 paging attributes. */
+#define S626_P_RPSPAGE0		0x00C4	/* RPS0 page. */
+#define S626_P_RPSPAGE1		0x00C8	/* RPS1 page. */
+#define S626_P_RPS0_TOUT	0x00D4	/* RPS0 time-out. */
+#define S626_P_RPS1_TOUT	0x00D8	/* RPS1 time-out. */
+#define S626_P_IER		0x00DC	/* Interrupt enable. */
+#define S626_P_GPIO		0x00E0	/* General-purpose I/O. */
+#define S626_P_EC1SSR		0x00E4	/* Event counter set 1 source select. */
+#define S626_P_ECT1R		0x00EC	/* Event counter threshold set 1. */
+#define S626_P_ACON1		0x00F4	/* Audio control 1. */
+#define S626_P_ACON2		0x00F8	/* Audio control 2. */
+#define S626_P_MC1		0x00FC	/* Master control 1. */
+#define S626_P_MC2		0x0100	/* Master control 2. */
+#define S626_P_RPSADDR0		0x0104	/* RPS0 instruction pointer. */
+#define S626_P_RPSADDR1		0x0108	/* RPS1 instruction pointer. */
+#define S626_P_ISR		0x010C	/* Interrupt status. */
+#define S626_P_PSR		0x0110	/* Primary status. */
+#define S626_P_SSR		0x0114	/* Secondary status. */
+#define S626_P_EC1R		0x0118	/* Event counter set 1. */
+#define S626_P_ADP4		0x0138	/* Logical audio DMA pointer of audio
 					 * input FIFO A2_IN. */
-#define P_FB_BUFFER1            0x0144	/* Audio feedback buffer 1. */
-#define P_FB_BUFFER2            0x0148	/* Audio feedback buffer 2. */
-#define P_TSL1                  0x0180	/* Audio time slot list 1. */
-#define P_TSL2                  0x01C0	/* Audio time slot list 2. */
+#define S626_P_FB_BUFFER1	0x0144	/* Audio feedback buffer 1. */
+#define S626_P_FB_BUFFER2	0x0148	/* Audio feedback buffer 2. */
+#define S626_P_TSL1		0x0180	/* Audio time slot list 1. */
+#define S626_P_TSL2		0x01C0	/* Audio time slot list 2. */
 
 /* LOCAL BUS (GATE ARRAY) REGISTER ADDRESS OFFSETS */
 /* Analog I/O registers: */
-#define LP_DACPOL		0x0082	/* Write DAC polarity. */
-#define LP_GSEL			0x0084	/* Write ADC gain. */
-#define LP_ISEL			0x0086	/* Write ADC channel select. */
+#define S626_LP_DACPOL		0x0082	/* Write DAC polarity. */
+#define S626_LP_GSEL		0x0084	/* Write ADC gain. */
+#define S626_LP_ISEL		0x0086	/* Write ADC channel select. */
 
 /* Digital I/O registers */
-#define LP_RDDIN(x)		(0x0040 + (x) * 0x10)	/* R: digital input */
-#define LP_WRINTSEL(x)		(0x0042 + (x) * 0x10)	/* W: int enable */
-#define LP_WREDGSEL(x)		(0x0044 + (x) * 0x10)	/* W: edge selection */
-#define LP_WRCAPSEL(x)		(0x0046 + (x) * 0x10)	/* W: capture enable */
-#define LP_RDCAPFLG(x)		(0x0048 + (x) * 0x10)	/* R: edges captured */
-#define LP_WRDOUT(x)		(0x0048 + (x) * 0x10)	/* W: digital output */
-#define LP_RDINTSEL(x)		(0x004a + (x) * 0x10)	/* R: int enable */
-#define LP_RDEDGSEL(x)		(0x004c + (x) * 0x10)	/* R: edge selection */
-#define LP_RDCAPSEL(x)		(0x004e + (x) * 0x10)	/* R: capture enable */
+#define S626_LP_RDDIN(x)	(0x0040 + (x) * 0x10)	/* R: digital input */
+#define S626_LP_WRINTSEL(x)	(0x0042 + (x) * 0x10)	/* W: int enable */
+#define S626_LP_WREDGSEL(x)	(0x0044 + (x) * 0x10)	/* W: edge selection */
+#define S626_LP_WRCAPSEL(x)	(0x0046 + (x) * 0x10)	/* W: capture enable */
+#define S626_LP_RDCAPFLG(x)	(0x0048 + (x) * 0x10)	/* R: edges captured */
+#define S626_LP_WRDOUT(x)	(0x0048 + (x) * 0x10)	/* W: digital output */
+#define S626_LP_RDINTSEL(x)	(0x004a + (x) * 0x10)	/* R: int enable */
+#define S626_LP_RDEDGSEL(x)	(0x004c + (x) * 0x10)	/* R: edge selection */
+#define S626_LP_RDCAPSEL(x)	(0x004e + (x) * 0x10)	/* R: capture enable */
 
 /* Counter Registers (read/write): */
-#define LP_CR0A			0x0000	/* 0A setup register. */
-#define LP_CR0B			0x0002	/* 0B setup register. */
-#define LP_CR1A			0x0004	/* 1A setup register. */
-#define LP_CR1B			0x0006	/* 1B setup register. */
-#define LP_CR2A			0x0008	/* 2A setup register. */
-#define LP_CR2B			0x000A	/* 2B setup register. */
+#define S626_LP_CR0A		0x0000	/* 0A setup register. */
+#define S626_LP_CR0B		0x0002	/* 0B setup register. */
+#define S626_LP_CR1A		0x0004	/* 1A setup register. */
+#define S626_LP_CR1B		0x0006	/* 1B setup register. */
+#define S626_LP_CR2A		0x0008	/* 2A setup register. */
+#define S626_LP_CR2B		0x000A	/* 2B setup register. */
 
 /* Counter PreLoad (write) and Latch (read) Registers: */
-#define	LP_CNTR0ALSW		0x000C	/* 0A lsw. */
-#define	LP_CNTR0AMSW		0x000E	/* 0A msw. */
-#define	LP_CNTR0BLSW		0x0010	/* 0B lsw. */
-#define	LP_CNTR0BMSW		0x0012	/* 0B msw. */
-#define	LP_CNTR1ALSW		0x0014	/* 1A lsw. */
-#define	LP_CNTR1AMSW		0x0016	/* 1A msw. */
-#define	LP_CNTR1BLSW		0x0018	/* 1B lsw. */
-#define	LP_CNTR1BMSW		0x001A	/* 1B msw. */
-#define	LP_CNTR2ALSW		0x001C	/* 2A lsw. */
-#define	LP_CNTR2AMSW		0x001E	/* 2A msw. */
-#define	LP_CNTR2BLSW		0x0020	/* 2B lsw. */
-#define	LP_CNTR2BMSW		0x0022	/* 2B msw. */
+#define	S626_LP_CNTR0ALSW	0x000C	/* 0A lsw. */
+#define	S626_LP_CNTR0AMSW	0x000E	/* 0A msw. */
+#define	S626_LP_CNTR0BLSW	0x0010	/* 0B lsw. */
+#define	S626_LP_CNTR0BMSW	0x0012	/* 0B msw. */
+#define	S626_LP_CNTR1ALSW	0x0014	/* 1A lsw. */
+#define	S626_LP_CNTR1AMSW	0x0016	/* 1A msw. */
+#define	S626_LP_CNTR1BLSW	0x0018	/* 1B lsw. */
+#define	S626_LP_CNTR1BMSW	0x001A	/* 1B msw. */
+#define	S626_LP_CNTR2ALSW	0x001C	/* 2A lsw. */
+#define	S626_LP_CNTR2AMSW	0x001E	/* 2A msw. */
+#define	S626_LP_CNTR2BLSW	0x0020	/* 2B lsw. */
+#define	S626_LP_CNTR2BMSW	0x0022	/* 2B msw. */
 
 /* Miscellaneous Registers (read/write): */
-#define LP_MISC1		0x0088	/* Read/write Misc1. */
-#define LP_WRMISC2		0x0090	/* Write Misc2. */
-#define LP_RDMISC2		0x0082	/* Read Misc2. */
+#define S626_LP_MISC1		0x0088	/* Read/write Misc1. */
+#define S626_LP_WRMISC2		0x0090	/* Write Misc2. */
+#define S626_LP_RDMISC2		0x0082	/* Read Misc2. */
 
 /* Bit masks for MISC1 register that are the same for reads and writes. */
-#define MISC1_WENABLE		0x8000	/* enab writes to MISC2 (except Clear
+#define S626_MISC1_WENABLE	0x8000	/* enab writes to MISC2 (except Clear
 					 * Watchdog bit). */
-#define MISC1_WDISABLE		0x0000	/* Disable writes to MISC2. */
-#define MISC1_EDCAP		0x1000	/* Enable edge capture on DIO chans
-					 * specified by  LP_WRCAPSELx. */
-#define MISC1_NOEDCAP		0x0000	/* Disable edge capture on specified
+#define S626_MISC1_WDISABLE	0x0000	/* Disable writes to MISC2. */
+#define S626_MISC1_EDCAP	0x1000	/* Enable edge capture on DIO chans
+					 * specified by S626_LP_WRCAPSELx. */
+#define S626_MISC1_NOEDCAP	0x0000	/* Disable edge capture on specified
 					 * DIO chans. */
 
 /* Bit masks for MISC1 register reads. */
-#define RDMISC1_WDTIMEOUT	0x4000	/* Watchdog timer timed out. */
+#define S626_RDMISC1_WDTIMEOUT	0x4000	/* Watchdog timer timed out. */
 
 /* Bit masks for MISC2 register writes. */
-#define WRMISC2_WDCLEAR		0x8000	/* Reset watchdog timer to zero. */
-#define WRMISC2_CHARGE_ENABLE	0x4000	/* Enable battery trickle charging. */
+#define S626_WRMISC2_WDCLEAR	0x8000	/* Reset watchdog timer to zero. */
+#define S626_WRMISC2_CHARGE_ENABLE 0x4000 /* Enable battery trickle charging. */
 
 /* Bit masks for MISC2 register that are the same for reads and writes. */
-#define MISC2_BATT_ENABLE	0x0008	/* Backup battery enable. */
-#define MISC2_WDENABLE		0x0004	/* Watchdog timer enable. */
-#define MISC2_WDPERIOD_MASK	0x0003	/* Watchdog interval select mask. */
+#define S626_MISC2_BATT_ENABLE	0x0008	/* Backup battery enable. */
+#define S626_MISC2_WDENABLE	0x0004	/* Watchdog timer enable. */
+#define S626_MISC2_WDPERIOD_MASK 0x0003	/* Watchdog interval select mask. */
 
 /* Bit masks for ACON1 register. */
-#define A2_RUN			0x40000000	/* Run A2 based on TSL2. */
-#define A1_RUN			0x20000000	/* Run A1 based on TSL1. */
-#define A1_SWAP			0x00200000	/* Use big-endian for A1. */
-#define A2_SWAP			0x00100000	/* Use big-endian for A2. */
-#define WS_MODES		0x00019999	/* WS0 = TSL1 trigger input,
+#define S626_A2_RUN		0x40000000	/* Run A2 based on TSL2. */
+#define S626_A1_RUN		0x20000000	/* Run A1 based on TSL1. */
+#define S626_A1_SWAP		0x00200000	/* Use big-endian for A1. */
+#define S626_A2_SWAP		0x00100000	/* Use big-endian for A2. */
+#define S626_WS_MODES		0x00019999	/* WS0 = TSL1 trigger input,
 						 * WS1-WS4 = CS* outputs. */
 
-#if PLATFORM == INTEL		/* Base ACON1 config: always run A1 based
-				 * on TSL1. */
-#define ACON1_BASE		(WS_MODES | A1_RUN)
-#elif PLATFORM == MOTOROLA
-#define ACON1_BASE		(WS_MODES | A1_RUN | A1_SWAP | A2_SWAP)
+#if S626_PLATFORM == S626_INTEL		/* Base ACON1 config: always run
+					 * A1 based on TSL1. */
+#define S626_ACON1_BASE		(S626_WS_MODES | S626_A1_RUN)
+#elif S626_PLATFORM == S626_MOTOROLA
+#define S626_ACON1_BASE		\
+	(S626_WS_MODES | S626_A1_RUN | S626_A1_SWAP | S626_A2_SWAP)
 #endif
 
-#define ACON1_ADCSTART		ACON1_BASE	/* Start ADC: run A1
+#define S626_ACON1_ADCSTART	S626_ACON1_BASE	/* Start ADC: run A1
 						 * based on TSL1. */
-#define ACON1_DACSTART		(ACON1_BASE | A2_RUN)
+#define S626_ACON1_DACSTART	(S626_ACON1_BASE | S626_A2_RUN)
 /* Start transmit to DAC: run A2 based on TSL2. */
-#define ACON1_DACSTOP		ACON1_BASE	/* Halt A2. */
+#define S626_ACON1_DACSTOP	S626_ACON1_BASE	/* Halt A2. */
 
 /* Bit masks for ACON2 register. */
-#define A1_CLKSRC_BCLK1		0x00000000	/* A1 bit rate = BCLK1 (ADC). */
-#define A2_CLKSRC_X1		0x00800000	/* A2 bit rate = ACLK/1
+#define S626_A1_CLKSRC_BCLK1	0x00000000	/* A1 bit rate = BCLK1 (ADC). */
+#define S626_A2_CLKSRC_X1	0x00800000	/* A2 bit rate = ACLK/1
 						 * (DACs). */
-#define A2_CLKSRC_X2		0x00C00000	/* A2 bit rate = ACLK/2
+#define S626_A2_CLKSRC_X2	0x00C00000	/* A2 bit rate = ACLK/2
 						 * (DACs). */
-#define A2_CLKSRC_X4		0x01400000	/* A2 bit rate = ACLK/4
+#define S626_A2_CLKSRC_X4	0x01400000	/* A2 bit rate = ACLK/4
 						 * (DACs). */
-#define INVERT_BCLK2		0x00100000	/* Invert BCLK2 (DACs). */
-#define BCLK2_OE		0x00040000	/* Enable BCLK2 (DACs). */
-#define ACON2_XORMASK		0x000C0000	/* XOR mask for ACON2
+#define S626_INVERT_BCLK2	0x00100000	/* Invert BCLK2 (DACs). */
+#define S626_BCLK2_OE		0x00040000	/* Enable BCLK2 (DACs). */
+#define S626_ACON2_XORMASK	0x000C0000	/* XOR mask for ACON2
 						 * active-low bits. */
 
-#define ACON2_INIT		(ACON2_XORMASK ^ \
-				 (A1_CLKSRC_BCLK1 | A2_CLKSRC_X2 | \
-				  INVERT_BCLK2 | BCLK2_OE))
+#define S626_ACON2_INIT		(S626_ACON2_XORMASK ^ \
+				 (S626_A1_CLKSRC_BCLK1 | S626_A2_CLKSRC_X2 | \
+				  S626_INVERT_BCLK2 | S626_BCLK2_OE))
 
 /* Bit masks for timeslot records. */
-#define WS1			0x40000000	/* WS output to assert. */
-#define WS2			0x20000000
-#define WS3			0x10000000
-#define WS4			0x08000000
-#define RSD1			0x01000000	/* Shift A1 data in on SD1. */
-#define SDW_A1			0x00800000	/* Store rcv'd char at next char
+#define S626_WS1		0x40000000	/* WS output to assert. */
+#define S626_WS2		0x20000000
+#define S626_WS3		0x10000000
+#define S626_WS4		0x08000000
+#define S626_RSD1		0x01000000	/* Shift A1 data in on SD1. */
+#define S626_SDW_A1		0x00800000	/* Store rcv'd char at next char
 						 * slot of DWORD1 buffer. */
-#define SIB_A1			0x00400000	/* Store rcv'd char at next
+#define S626_SIB_A1		0x00400000	/* Store rcv'd char at next
 						 * char slot of FB1 buffer. */
-#define SF_A1			0x00200000	/* Write unsigned long
+#define S626_SF_A1		0x00200000	/* Write unsigned long
 						 * buffer to input FIFO. */
 
 /* Select parallel-to-serial converter's data source: */
-#define XFIFO_0			0x00000000	/* Data fifo byte 0. */
-#define XFIFO_1			0x00000010	/* Data fifo byte 1. */
-#define XFIFO_2			0x00000020	/* Data fifo byte 2. */
-#define XFIFO_3			0x00000030	/* Data fifo byte 3. */
-#define XFB0			0x00000040	/* FB_BUFFER byte 0. */
-#define XFB1			0x00000050	/* FB_BUFFER byte 1. */
-#define XFB2			0x00000060	/* FB_BUFFER byte 2. */
-#define XFB3			0x00000070	/* FB_BUFFER byte 3. */
-#define SIB_A2			0x00000200	/* Store next dword from A2's
+#define S626_XFIFO_0		0x00000000	/* Data fifo byte 0. */
+#define S626_XFIFO_1		0x00000010	/* Data fifo byte 1. */
+#define S626_XFIFO_2		0x00000020	/* Data fifo byte 2. */
+#define S626_XFIFO_3		0x00000030	/* Data fifo byte 3. */
+#define S626_XFB0		0x00000040	/* FB_BUFFER byte 0. */
+#define S626_XFB1		0x00000050	/* FB_BUFFER byte 1. */
+#define S626_XFB2		0x00000060	/* FB_BUFFER byte 2. */
+#define S626_XFB3		0x00000070	/* FB_BUFFER byte 3. */
+#define S626_SIB_A2		0x00000200	/* Store next dword from A2's
 						 * input shifter to FB2
 						 * buffer. */
-#define SF_A2			0x00000100	/* Store next dword from A2's
+#define S626_SF_A2		0x00000100	/* Store next dword from A2's
 						 * input shifter to its input
 						 * fifo. */
-#define LF_A2			0x00000080	/* Load next dword from A2's
+#define S626_LF_A2		0x00000080	/* Load next dword from A2's
 						 * output fifo into its
 						 * output dword buffer. */
-#define XSD2			0x00000008	/* Shift data out on SD2. */
-#define RSD3			0x00001800	/* Shift data in on SD3. */
-#define RSD2			0x00001000	/* Shift data in on SD2. */
-#define LOW_A2			0x00000002	/* Drive last SD low for 7 clks,
+#define S626_XSD2		0x00000008	/* Shift data out on SD2. */
+#define S626_RSD3		0x00001800	/* Shift data in on SD3. */
+#define S626_RSD2		0x00001000	/* Shift data in on SD2. */
+#define S626_LOW_A2		0x00000002	/* Drive last SD low for 7 clks,
 						 * then tri-state. */
-#define EOS			0x00000001	/* End of superframe. */
+#define S626_EOS		0x00000001	/* End of superframe. */
 
 /* I2C configuration constants. */
-#define I2C_CLKSEL		0x0400		/* I2C bit rate =
+#define S626_I2C_CLKSEL		0x0400		/* I2C bit rate =
 						 * PCIclk/480 = 68.75 KHz. */
-#define I2C_BITRATE		68.75		/* I2C bus data bit rate
-						 * (determined by I2C_CLKSEL)
-						 * in KHz. */
-#define I2C_WRTIME		15.0		/* Worst case time, in msec,
+#define S626_I2C_BITRATE	68.75		/* I2C bus data bit rate
+						 * (determined by
+						 * S626_I2C_CLKSEL) in KHz. */
+#define S626_I2C_WRTIME		15.0		/* Worst case time, in msec,
 						 * for EEPROM internal write
 						 * op. */
 
 /* I2C manifest constants. */
 
 /* Max retries to wait for EEPROM write. */
-#define I2C_RETRIES		(I2C_WRTIME * I2C_BITRATE / 9.0)
-#define I2C_ERR			0x0002	/* I2C control/status flag ERROR. */
-#define I2C_BUSY		0x0001	/* I2C control/status flag BUSY. */
-#define I2C_ABORT		0x0080	/* I2C status flag ABORT. */
-#define I2C_ATTRSTART		0x3	/* I2C attribute START. */
-#define I2C_ATTRCONT		0x2	/* I2C attribute CONT. */
-#define I2C_ATTRSTOP		0x1	/* I2C attribute STOP. */
-#define I2C_ATTRNOP		0x0	/* I2C attribute NOP. */
+#define S626_I2C_RETRIES	(S626_I2C_WRTIME * S626_I2C_BITRATE / 9.0)
+#define S626_I2C_ERR		0x0002	/* I2C control/status flag ERROR. */
+#define S626_I2C_BUSY		0x0001	/* I2C control/status flag BUSY. */
+#define S626_I2C_ABORT		0x0080	/* I2C status flag ABORT. */
+#define S626_I2C_ATTRSTART	0x3	/* I2C attribute START. */
+#define S626_I2C_ATTRCONT	0x2	/* I2C attribute CONT. */
+#define S626_I2C_ATTRSTOP	0x1	/* I2C attribute STOP. */
+#define S626_I2C_ATTRNOP	0x0	/* I2C attribute NOP. */
 
 /* Code macros used for constructing I2C command bytes. */
-#define I2C_B2(ATTR, VAL)	(((ATTR) << 6) | ((VAL) << 24))
-#define I2C_B1(ATTR, VAL)	(((ATTR) << 4) | ((VAL) << 16))
-#define I2C_B0(ATTR, VAL)	(((ATTR) << 2) | ((VAL) <<  8))
+#define S626_I2C_B2(ATTR, VAL)	(((ATTR) << 6) | ((VAL) << 24))
+#define S626_I2C_B1(ATTR, VAL)	(((ATTR) << 4) | ((VAL) << 16))
+#define S626_I2C_B0(ATTR, VAL)	(((ATTR) << 2) | ((VAL) <<  8))
 
 /* DEBI command constants. */
-#define DEBI_CMD_SIZE16		(2 << 17)	/* Transfer size is always
+#define S626_DEBI_CMD_SIZE16	(2 << 17)	/* Transfer size is always
 						 * 2 bytes. */
-#define DEBI_CMD_READ		0x00010000	/* Read operation. */
-#define DEBI_CMD_WRITE		0x00000000	/* Write operation. */
+#define S626_DEBI_CMD_READ	0x00010000	/* Read operation. */
+#define S626_DEBI_CMD_WRITE	0x00000000	/* Write operation. */
 
 /* Read immediate 2 bytes. */
-#define DEBI_CMD_RDWORD		(DEBI_CMD_READ | DEBI_CMD_SIZE16)
+#define S626_DEBI_CMD_RDWORD	(S626_DEBI_CMD_READ | S626_DEBI_CMD_SIZE16)
 
 /* Write immediate 2 bytes. */
-#define DEBI_CMD_WRWORD		(DEBI_CMD_WRITE | DEBI_CMD_SIZE16)
+#define S626_DEBI_CMD_WRWORD	(S626_DEBI_CMD_WRITE | S626_DEBI_CMD_SIZE16)
 
 /* DEBI configuration constants. */
-#define DEBI_CFG_XIRQ_EN	0x80000000	/* Enable external interrupt
+#define S626_DEBI_CFG_XIRQ_EN	0x80000000	/* Enable external interrupt
 						 * on GPIO3. */
-#define DEBI_CFG_XRESUME	0x40000000	/* Resume block */
+#define S626_DEBI_CFG_XRESUME	0x40000000	/* Resume block */
 						/* Transfer when XIRQ
 						 * deasserted. */
-#define DEBI_CFG_TOQ		0x03C00000	/* Timeout (15 PCI cycles). */
-#define DEBI_CFG_FAST		0x10000000	/* Fast mode enable. */
+#define S626_DEBI_CFG_TOQ	0x03C00000	/* Timeout (15 PCI cycles). */
+#define S626_DEBI_CFG_FAST	0x10000000	/* Fast mode enable. */
 
 /* 4-bit field that specifies DEBI timeout value in PCI clock cycles: */
-#define DEBI_CFG_TOUT_BIT	22	/* Finish DEBI cycle after this many
+#define S626_DEBI_CFG_TOUT_BIT	22	/* Finish DEBI cycle after this many
 					 * clocks. */
 
 /* 2-bit field that specifies Endian byte lane steering: */
-#define DEBI_CFG_SWAP_NONE	0x00000000	/* Straight - don't swap any
+#define S626_DEBI_CFG_SWAP_NONE	0x00000000	/* Straight - don't swap any
 						 * bytes (Intel). */
-#define DEBI_CFG_SWAP_2		0x00100000	/* 2-byte swap (Motorola). */
-#define DEBI_CFG_SWAP_4		0x00200000	/* 4-byte swap. */
-#define DEBI_CFG_SLAVE16	0x00080000	/* Slave is able to serve
+#define S626_DEBI_CFG_SWAP_2	0x00100000	/* 2-byte swap (Motorola). */
+#define S626_DEBI_CFG_SWAP_4	0x00200000	/* 4-byte swap. */
+#define S626_DEBI_CFG_SLAVE16	0x00080000	/* Slave is able to serve
 						 * 16-bit cycles. */
-#define DEBI_CFG_INC		0x00040000	/* Enable address increment
+#define S626_DEBI_CFG_INC	0x00040000	/* Enable address increment
 						 * for block transfers. */
-#define DEBI_CFG_INTEL		0x00020000	/* Intel style local bus. */
-#define DEBI_CFG_TIMEROFF	0x00010000	/* Disable timer. */
+#define S626_DEBI_CFG_INTEL	0x00020000	/* Intel style local bus. */
+#define S626_DEBI_CFG_TIMEROFF	0x00010000	/* Disable timer. */
 
-#if PLATFORM == INTEL
+#if S626_PLATFORM == S626_INTEL
 
-#define DEBI_TOUT		7	/* Wait 7 PCI clocks (212 ns) before
+#define S626_DEBI_TOUT		7	/* Wait 7 PCI clocks (212 ns) before
 					 * polling RDY. */
 
 /* Intel byte lane steering (pass through all byte lanes). */
-#define DEBI_SWAP		DEBI_CFG_SWAP_NONE
+#define S626_DEBI_SWAP		S626_DEBI_CFG_SWAP_NONE
 
-#elif PLATFORM == MOTOROLA
+#elif S626_PLATFORM == S626_MOTOROLA
 
-#define DEBI_TOUT		15	/* Wait 15 PCI clocks (454 ns) maximum
+#define S626_DEBI_TOUT		15	/* Wait 15 PCI clocks (454 ns) maximum
 					 * before timing out. */
 
 /* Motorola byte lane steering. */
-#define DEBI_SWAP		DEBI_CFG_SWAP_2
+#define S626_DEBI_SWAP		S626_DEBI_CFG_SWAP_2
 
 #endif
 
 /* DEBI page table constants. */
-#define DEBI_PAGE_DISABLE	0x00000000	/* Paging disable. */
+#define S626_DEBI_PAGE_DISABLE	0x00000000	/* Paging disable. */
 
 /* ******* EXTRA FROM OTHER SENSORAY  * .h  ******* */
 
 /* LoadSrc values: */
-#define LOADSRC_INDX		0	/* Preload core in response to Index. */
-#define LOADSRC_OVER		1	/* Preload core in response to
+#define S626_LOADSRC_INDX	0	/* Preload core in response to Index. */
+#define S626_LOADSRC_OVER	1	/* Preload core in response to
 					 * Overflow. */
-#define LOADSRCB_OVERA		2	/* Preload B core in response to
+#define S626_LOADSRCB_OVERA	2	/* Preload B core in response to
 					 * A Overflow. */
-#define LOADSRC_NONE		3	/* Never preload core. */
+#define S626_LOADSRC_NONE	3	/* Never preload core. */
 
 /* IntSrc values: */
-#define INTSRC_NONE		0	/* Interrupts disabled. */
-#define INTSRC_OVER		1	/* Interrupt on Overflow. */
-#define INTSRC_INDX		2	/* Interrupt on Index. */
-#define INTSRC_BOTH		3	/* Interrupt on Index or Overflow. */
+#define S626_INTSRC_NONE	0	/* Interrupts disabled. */
+#define S626_INTSRC_OVER	1	/* Interrupt on Overflow. */
+#define S626_INTSRC_INDX	2	/* Interrupt on Index. */
+#define S626_INTSRC_BOTH	3	/* Interrupt on Index or Overflow. */
 
 /* LatchSrc values: */
-#define LATCHSRC_AB_READ	0	/* Latch on read. */
-#define LATCHSRC_A_INDXA	1	/* Latch A on A Index. */
-#define LATCHSRC_B_INDXB	2	/* Latch B on B Index. */
-#define LATCHSRC_B_OVERA	3	/* Latch B on A Overflow. */
+#define S626_LATCHSRC_AB_READ	0	/* Latch on read. */
+#define S626_LATCHSRC_A_INDXA	1	/* Latch A on A Index. */
+#define S626_LATCHSRC_B_INDXB	2	/* Latch B on B Index. */
+#define S626_LATCHSRC_B_OVERA	3	/* Latch B on A Overflow. */
 
 /* IndxSrc values: */
-#define INDXSRC_HARD		0	/* Hardware or software index. */
-#define INDXSRC_SOFT		1	/* Software index only. */
+#define S626_INDXSRC_HARD	0	/* Hardware or software index. */
+#define S626_INDXSRC_SOFT	1	/* Software index only. */
 
 /* IndxPol values: */
-#define INDXPOL_POS		0	/* Index input is active high. */
-#define INDXPOL_NEG		1	/* Index input is active low. */
+#define S626_INDXPOL_POS	0	/* Index input is active high. */
+#define S626_INDXPOL_NEG	1	/* Index input is active low. */
 
 /* ClkSrc values: */
-#define CLKSRC_COUNTER		0	/* Counter mode. */
-#define CLKSRC_TIMER		2	/* Timer mode. */
-#define CLKSRC_EXTENDER		3	/* Extender mode. */
+#define S626_CLKSRC_COUNTER	0	/* Counter mode. */
+#define S626_CLKSRC_TIMER	2	/* Timer mode. */
+#define S626_CLKSRC_EXTENDER	3	/* Extender mode. */
 
 /* ClkPol values: */
-#define CLKPOL_POS		0	/* Counter/Extender clock is
+#define S626_CLKPOL_POS		0	/* Counter/Extender clock is
 					 * active high. */
-#define CLKPOL_NEG		1	/* Counter/Extender clock is
+#define S626_CLKPOL_NEG		1	/* Counter/Extender clock is
 					 * active low. */
-#define CNTDIR_UP		0	/* Timer counts up. */
-#define CNTDIR_DOWN		1	/* Timer counts down. */
+#define S626_CNTDIR_UP		0	/* Timer counts up. */
+#define S626_CNTDIR_DOWN	1	/* Timer counts down. */
 
 /* ClkEnab values: */
-#define CLKENAB_ALWAYS		0	/* Clock always enabled. */
-#define CLKENAB_INDEX		1	/* Clock is enabled by index. */
+#define S626_CLKENAB_ALWAYS	0	/* Clock always enabled. */
+#define S626_CLKENAB_INDEX	1	/* Clock is enabled by index. */
 
 /* ClkMult values: */
-#define CLKMULT_4X		0	/* 4x clock multiplier. */
-#define CLKMULT_2X		1	/* 2x clock multiplier. */
-#define CLKMULT_1X		2	/* 1x clock multiplier. */
+#define S626_CLKMULT_4X		0	/* 4x clock multiplier. */
+#define S626_CLKMULT_2X		1	/* 2x clock multiplier. */
+#define S626_CLKMULT_1X		2	/* 1x clock multiplier. */
 
 /* Bit Field positions in COUNTER_SETUP structure: */
-#define BF_LOADSRC		9	/* Preload trigger. */
-#define BF_INDXSRC		7	/* Index source. */
-#define BF_INDXPOL		6	/* Index polarity. */
-#define BF_CLKSRC		4	/* Clock source. */
-#define BF_CLKPOL		3	/* Clock polarity/count direction. */
-#define BF_CLKMULT		1	/* Clock multiplier. */
-#define BF_CLKENAB		0	/* Clock enable. */
-
-/*
- * Enumerated counter operating modes specified by ClkSrc bit field in
- * a COUNTER_SETUP.
- */
-
-#define CLKSRC_COUNTER		0	/* Counter: ENC_C clock,
-					 * ENC_D direction. */
-#define CLKSRC_TIMER		2	/* Timer: SYS_C clock, direction
-					 * specified by ClkPol. */
-#define CLKSRC_EXTENDER		3	/* Extender: OVR_A clock,
-					 * ENC_D direction. */
+#define S626_BF_LOADSRC		9	/* Preload trigger. */
+#define S626_BF_INDXSRC		7	/* Index source. */
+#define S626_BF_INDXPOL		6	/* Index polarity. */
+#define S626_BF_CLKSRC		4	/* Clock source. */
+#define S626_BF_CLKPOL		3	/* Clock polarity/count direction. */
+#define S626_BF_CLKMULT		1	/* Clock multiplier. */
+#define S626_BF_CLKENAB		0	/* Clock enable. */
 
 /* Enumerated counter clock multipliers. */
 
-#define MULT_X0			0x0003	/* Supports no multipliers;
+#define S626_MULT_X0		0x0003	/* Supports no multipliers;
 					 * fixed physical multiplier = 3. */
-#define MULT_X1			0x0002	/* Supports multiplier x1;
+#define S626_MULT_X1		0x0002	/* Supports multiplier x1;
 					 * fixed physical multiplier = 2. */
-#define MULT_X2			0x0001	/* Supports multipliers x1, x2;
+#define S626_MULT_X2		0x0001	/* Supports multipliers x1, x2;
 					 * physical multipliers = 1 or 2. */
-#define MULT_X4			0x0000	/* Supports multipliers x1, x2, x4;
+#define S626_MULT_X4		0x0000	/* Supports multipliers x1, x2, x4;
 					 * physical multipliers = 0, 1 or 2. */
 
 /* Sanity-check limits for parameters. */
 
-#define NUM_COUNTERS		6	/* Maximum valid counter
+#define S626_NUM_COUNTERS	6	/* Maximum valid counter
 					 * logical channel number. */
-#define NUM_INTSOURCES		4
-#define NUM_LATCHSOURCES	4
-#define NUM_CLKMULTS		4
-#define NUM_CLKSOURCES		4
-#define NUM_CLKPOLS		2
-#define NUM_INDEXPOLS		2
-#define NUM_INDEXSOURCES	2
-#define NUM_LOADTRIGS		4
+#define S626_NUM_INTSOURCES	4
+#define S626_NUM_LATCHSOURCES	4
+#define S626_NUM_CLKMULTS	4
+#define S626_NUM_CLKSOURCES	4
+#define S626_NUM_CLKPOLS	2
+#define S626_NUM_INDEXPOLS	2
+#define S626_NUM_INDEXSOURCES	2
+#define S626_NUM_LOADTRIGS	4
 
 /* Bit field positions in CRA and CRB counter control registers. */
 
 /* Bit field positions in CRA: */
-#define CRABIT_INDXSRC_B	14	/* B index source. */
-#define CRABIT_CLKSRC_B		12	/* B clock source. */
-#define CRABIT_INDXPOL_A	11	/* A index polarity. */
-#define CRABIT_LOADSRC_A	 9	/* A preload trigger. */
-#define CRABIT_CLKMULT_A	 7	/* A clock multiplier. */
-#define CRABIT_INTSRC_A		 5	/* A interrupt source. */
-#define CRABIT_CLKPOL_A		 4	/* A clock polarity. */
-#define CRABIT_INDXSRC_A	 2	/* A index source. */
-#define CRABIT_CLKSRC_A		 0	/* A clock source. */
+#define S626_CRABIT_INDXSRC_B	14	/* B index source. */
+#define S626_CRABIT_CLKSRC_B	12	/* B clock source. */
+#define S626_CRABIT_INDXPOL_A	11	/* A index polarity. */
+#define S626_CRABIT_LOADSRC_A	 9	/* A preload trigger. */
+#define S626_CRABIT_CLKMULT_A	 7	/* A clock multiplier. */
+#define S626_CRABIT_INTSRC_A	 5	/* A interrupt source. */
+#define S626_CRABIT_CLKPOL_A	 4	/* A clock polarity. */
+#define S626_CRABIT_INDXSRC_A	 2	/* A index source. */
+#define S626_CRABIT_CLKSRC_A	 0	/* A clock source. */
 
 /* Bit field positions in CRB: */
-#define CRBBIT_INTRESETCMD	15	/* Interrupt reset command. */
-#define CRBBIT_INTRESET_B	14	/* B interrupt reset enable. */
-#define CRBBIT_INTRESET_A	13	/* A interrupt reset enable. */
-#define CRBBIT_CLKENAB_A	12	/* A clock enable. */
-#define CRBBIT_INTSRC_B		10	/* B interrupt source. */
-#define CRBBIT_LATCHSRC		 8	/* A/B latch source. */
-#define CRBBIT_LOADSRC_B	 6	/* B preload trigger. */
-#define CRBBIT_CLKMULT_B	 3	/* B clock multiplier. */
-#define CRBBIT_CLKENAB_B	 2	/* B clock enable. */
-#define CRBBIT_INDXPOL_B	 1	/* B index polarity. */
-#define CRBBIT_CLKPOL_B		 0	/* B clock polarity. */
+#define S626_CRBBIT_INTRESETCMD	15	/* Interrupt reset command. */
+#define S626_CRBBIT_INTRESET_B	14	/* B interrupt reset enable. */
+#define S626_CRBBIT_INTRESET_A	13	/* A interrupt reset enable. */
+#define S626_CRBBIT_CLKENAB_A	12	/* A clock enable. */
+#define S626_CRBBIT_INTSRC_B	10	/* B interrupt source. */
+#define S626_CRBBIT_LATCHSRC	 8	/* A/B latch source. */
+#define S626_CRBBIT_LOADSRC_B	 6	/* B preload trigger. */
+#define S626_CRBBIT_CLKMULT_B	 3	/* B clock multiplier. */
+#define S626_CRBBIT_CLKENAB_B	 2	/* B clock enable. */
+#define S626_CRBBIT_INDXPOL_B	 1	/* B index polarity. */
+#define S626_CRBBIT_CLKPOL_B	 0	/* B clock polarity. */
 
 /* Bit field masks for CRA and CRB. */
 
-#define CRAMSK_INDXSRC_B	(3 << CRABIT_INDXSRC_B)
-#define CRAMSK_CLKSRC_B		(3 << CRABIT_CLKSRC_B)
-#define CRAMSK_INDXPOL_A	(1 << CRABIT_INDXPOL_A)
-#define CRAMSK_LOADSRC_A	(3 << CRABIT_LOADSRC_A)
-#define CRAMSK_CLKMULT_A	(3 << CRABIT_CLKMULT_A)
-#define CRAMSK_INTSRC_A		(3 << CRABIT_INTSRC_A)
-#define CRAMSK_CLKPOL_A		(3 << CRABIT_CLKPOL_A)
-#define CRAMSK_INDXSRC_A	(3 << CRABIT_INDXSRC_A)
-#define CRAMSK_CLKSRC_A		(3 << CRABIT_CLKSRC_A)
-
-#define CRBMSK_INTRESETCMD	(1 << CRBBIT_INTRESETCMD)
-#define CRBMSK_INTRESET_B	(1 << CRBBIT_INTRESET_B)
-#define CRBMSK_INTRESET_A	(1 << CRBBIT_INTRESET_A)
-#define CRBMSK_CLKENAB_A	(1 << CRBBIT_CLKENAB_A)
-#define CRBMSK_INTSRC_B		(3 << CRBBIT_INTSRC_B)
-#define CRBMSK_LATCHSRC		(3 << CRBBIT_LATCHSRC)
-#define CRBMSK_LOADSRC_B	(3 << CRBBIT_LOADSRC_B)
-#define CRBMSK_CLKMULT_B	(3 << CRBBIT_CLKMULT_B)
-#define CRBMSK_CLKENAB_B	(1 << CRBBIT_CLKENAB_B)
-#define CRBMSK_INDXPOL_B	(1 << CRBBIT_INDXPOL_B)
-#define CRBMSK_CLKPOL_B		(1 << CRBBIT_CLKPOL_B)
+#define S626_CRAMSK_INDXSRC_B	(3 << S626_CRABIT_INDXSRC_B)
+#define S626_CRAMSK_CLKSRC_B	(3 << S626_CRABIT_CLKSRC_B)
+#define S626_CRAMSK_INDXPOL_A	(1 << S626_CRABIT_INDXPOL_A)
+#define S626_CRAMSK_LOADSRC_A	(3 << S626_CRABIT_LOADSRC_A)
+#define S626_CRAMSK_CLKMULT_A	(3 << S626_CRABIT_CLKMULT_A)
+#define S626_CRAMSK_INTSRC_A	(3 << S626_CRABIT_INTSRC_A)
+#define S626_CRAMSK_CLKPOL_A	(3 << S626_CRABIT_CLKPOL_A)
+#define S626_CRAMSK_INDXSRC_A	(3 << S626_CRABIT_INDXSRC_A)
+#define S626_CRAMSK_CLKSRC_A	(3 << S626_CRABIT_CLKSRC_A)
+
+#define S626_CRBMSK_INTRESETCMD	(1 << S626_CRBBIT_INTRESETCMD)
+#define S626_CRBMSK_INTRESET_B	(1 << S626_CRBBIT_INTRESET_B)
+#define S626_CRBMSK_INTRESET_A	(1 << S626_CRBBIT_INTRESET_A)
+#define S626_CRBMSK_CLKENAB_A	(1 << S626_CRBBIT_CLKENAB_A)
+#define S626_CRBMSK_INTSRC_B	(3 << S626_CRBBIT_INTSRC_B)
+#define S626_CRBMSK_LATCHSRC	(3 << S626_CRBBIT_LATCHSRC)
+#define S626_CRBMSK_LOADSRC_B	(3 << S626_CRBBIT_LOADSRC_B)
+#define S626_CRBMSK_CLKMULT_B	(3 << S626_CRBBIT_CLKMULT_B)
+#define S626_CRBMSK_CLKENAB_B	(1 << S626_CRBBIT_CLKENAB_B)
+#define S626_CRBMSK_INDXPOL_B	(1 << S626_CRBBIT_INDXPOL_B)
+#define S626_CRBMSK_CLKPOL_B	(1 << S626_CRBBIT_CLKPOL_B)
 
 /* Interrupt reset control bits. */
-#define CRBMSK_INTCTRL		\
-	(CRBMSK_INTRESETCMD | CRBMSK_INTRESET_A | CRBMSK_INTRESET_B)
+#define S626_CRBMSK_INTCTRL	(S626_CRBMSK_INTRESETCMD | \
+				 S626_CRBMSK_INTRESET_A | \
+				 S626_CRBMSK_INTRESET_B)
 
 /* Bit field positions for standardized SETUP structure. */
 
-#define STDBIT_INTSRC		13
-#define STDBIT_LATCHSRC		11
-#define STDBIT_LOADSRC		 9
-#define STDBIT_INDXSRC		 7
-#define STDBIT_INDXPOL		 6
-#define STDBIT_CLKSRC		 4
-#define STDBIT_CLKPOL		 3
-#define STDBIT_CLKMULT		 1
-#define STDBIT_CLKENAB		 0
+#define S626_STDBIT_INTSRC	13
+#define S626_STDBIT_LATCHSRC	11
+#define S626_STDBIT_LOADSRC	 9
+#define S626_STDBIT_INDXSRC	 7
+#define S626_STDBIT_INDXPOL	 6
+#define S626_STDBIT_CLKSRC	 4
+#define S626_STDBIT_CLKPOL	 3
+#define S626_STDBIT_CLKMULT	 1
+#define S626_STDBIT_CLKENAB	 0
 
 /* Bit field masks for standardized SETUP structure. */
 
-#define STDMSK_INTSRC		(3 << STDBIT_INTSRC)
-#define STDMSK_LATCHSRC		(3 << STDBIT_LATCHSRC)
-#define STDMSK_LOADSRC		(3 << STDBIT_LOADSRC)
-#define STDMSK_INDXSRC		(1 << STDBIT_INDXSRC)
-#define STDMSK_INDXPOL		(1 << STDBIT_INDXPOL)
-#define STDMSK_CLKSRC		(3 << STDBIT_CLKSRC)
-#define STDMSK_CLKPOL		(1 << STDBIT_CLKPOL)
-#define STDMSK_CLKMULT		(3 << STDBIT_CLKMULT)
-#define STDMSK_CLKENAB		(1 << STDBIT_CLKENAB)
+#define S626_STDMSK_INTSRC	(3 << S626_STDBIT_INTSRC)
+#define S626_STDMSK_LATCHSRC	(3 << S626_STDBIT_LATCHSRC)
+#define S626_STDMSK_LOADSRC	(3 << S626_STDBIT_LOADSRC)
+#define S626_STDMSK_INDXSRC	(1 << S626_STDBIT_INDXSRC)
+#define S626_STDMSK_INDXPOL	(1 << S626_STDBIT_INDXPOL)
+#define S626_STDMSK_CLKSRC	(3 << S626_STDBIT_CLKSRC)
+#define S626_STDMSK_CLKPOL	(1 << S626_STDBIT_CLKPOL)
+#define S626_STDMSK_CLKMULT	(3 << S626_STDBIT_CLKMULT)
+#define S626_STDMSK_CLKENAB	(1 << S626_STDBIT_CLKENAB)
 
 #endif
-- 
cgit 


From 565c509587666b0652690ebde9e2b7390a9e61b6 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 9 Oct 2013 15:58:22 +0530
Subject: staging: dgap: dgap_fep5: Remove braces around single line statements

Single line statements do not require braces.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgap/dgap_fep5.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/dgap/dgap_fep5.c b/drivers/staging/dgap/dgap_fep5.c
index 4464f02c9575..5ebfcac5cebd 100644
--- a/drivers/staging/dgap/dgap_fep5.c
+++ b/drivers/staging/dgap/dgap_fep5.c
@@ -1229,29 +1229,24 @@ int dgap_param(struct tty_struct *tty)
 	uchar	mval;
 	uchar	hflow;
 
-	if (!tty || tty->magic != TTY_MAGIC) {
+	if (!tty || tty->magic != TTY_MAGIC)
 		return (-ENXIO);
-	}
 
 	un = (struct un_t *) tty->driver_data;
-	if (!un || un->magic != DGAP_UNIT_MAGIC) {
+	if (!un || un->magic != DGAP_UNIT_MAGIC)
 		return (-ENXIO);
-	}
 
 	ch = un->un_ch;
-	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) {
+	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
 		return (-ENXIO);
-	}
 
 	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGAP_BOARD_MAGIC) {
+	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
 		return (-ENXIO);
-	}
 
         bs = ch->ch_bs;
-	if (bs == 0) {
+	if (bs == 0)
 		return (-ENXIO);
-	}
 
 	DPR_PARAM(("param start: tdev: %x cflags: %x oflags: %x iflags: %x\n",
 		ch->ch_tun.un_dev, ch->ch_c_cflag, ch->ch_c_oflag, ch->ch_c_iflag));
-- 
cgit 


From 0b5aff00a7d715e308b6de469866446453ac03d8 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 9 Oct 2013 15:58:23 +0530
Subject: staging: dgap: dgap_fep5: Remove braces around return

Braces are not needed around return values.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgap/dgap_fep5.c | 38 +++++++++++++++++++-------------------
 1 file changed, 19 insertions(+), 19 deletions(-)

diff --git a/drivers/staging/dgap/dgap_fep5.c b/drivers/staging/dgap/dgap_fep5.c
index 5ebfcac5cebd..86e9aa663e65 100644
--- a/drivers/staging/dgap/dgap_fep5.c
+++ b/drivers/staging/dgap/dgap_fep5.c
@@ -134,7 +134,7 @@ int dgap_after_config_loaded(void)
 		dgap_Board[i]->flipflagbuf = dgap_driver_kzmalloc(MYFLIPLEN, GFP_ATOMIC);
 	}
 
-	return (rc);
+	return rc;
 }
 
 
@@ -150,14 +150,14 @@ static int dgap_usertoboard(struct board_t *brd, char *to_addr, char __user *fro
 	int n = U2BSIZE;
 
 	if (!brd || brd->magic != DGAP_BOARD_MAGIC)
-		return(-EFAULT);
+		return -EFAULT;
 
 	while (len) {
 		if (n > len)
 			n = len;
 
 		if (copy_from_user((char *) &buf, from_addr, n) == -1 ) {
-			return(-EFAULT);
+			return -EFAULT;
 		}
 
 		/* Copy data from buffer to card memory */
@@ -169,7 +169,7 @@ static int dgap_usertoboard(struct board_t *brd, char *to_addr, char __user *fro
 		from_addr += n;   
 		n = U2BSIZE;
         }
-	return(0);
+	return 0;
 }
 
 
@@ -1155,20 +1155,20 @@ uint dgap_get_custom_baud(struct channel_t *ch)
 	uint value = 0;
 
 	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC) {
-		return (0);
+		return 0;
 	}
 
 	if (!ch->ch_bd || ch->ch_bd->magic != DGAP_BOARD_MAGIC) {
-		return (0);
+		return 0;
 	}
 
 	if (!(ch->ch_bd->bd_flags & BD_FEP5PLUS))
-		return (0);
+		return 0;
 
 	vaddr = ch->ch_bd->re_map_membase;
 
 	if (!vaddr)
-		return (0);
+		return 0;
 
 	/*
 	 * Go get from fep mem, what the fep
@@ -1178,7 +1178,7 @@ uint dgap_get_custom_baud(struct channel_t *ch)
 		(ch->ch_portnum * 0x28) + LINE_SPEED));
 
 	value = readw(vaddr + offset);
-	return (value);
+	return value;
 }
 
 
@@ -1230,23 +1230,23 @@ int dgap_param(struct tty_struct *tty)
 	uchar	hflow;
 
 	if (!tty || tty->magic != TTY_MAGIC)
-		return (-ENXIO);
+		return -ENXIO;
 
 	un = (struct un_t *) tty->driver_data;
 	if (!un || un->magic != DGAP_UNIT_MAGIC)
-		return (-ENXIO);
+		return -ENXIO;
 
 	ch = un->un_ch;
 	if (!ch || ch->magic != DGAP_CHANNEL_MAGIC)
-		return (-ENXIO);
+		return -ENXIO;
 
 	bd = ch->ch_bd;
 	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return (-ENXIO);
+		return -ENXIO;
 
         bs = ch->ch_bs;
 	if (bs == 0)
-		return (-ENXIO);
+		return -ENXIO;
 
 	DPR_PARAM(("param start: tdev: %x cflags: %x oflags: %x iflags: %x\n",
 		ch->ch_tun.un_dev, ch->ch_c_cflag, ch->ch_c_oflag, ch->ch_c_iflag));
@@ -1553,7 +1553,7 @@ int dgap_param(struct tty_struct *tty)
 
 	DPR_PARAM(("param finish\n"));
 
-	return (0);
+	return 0;
 }
 
 
@@ -1670,7 +1670,7 @@ static int dgap_event(struct board_t *bd)
 	int		b1;
 
 	if (!bd || bd->magic != DGAP_BOARD_MAGIC)
-		return (-ENXIO);
+		return -ENXIO;
 
 	DGAP_LOCK(bd->bd_lock, lock_flags);
 
@@ -1678,7 +1678,7 @@ static int dgap_event(struct board_t *bd)
 
 	if (!vaddr) {
 		DGAP_UNLOCK(bd->bd_lock, lock_flags);
-		return (-ENXIO);
+		return -ENXIO;
 	}
 
 	eaddr = (struct ev_t *) (vaddr + EVBUF);
@@ -1696,7 +1696,7 @@ static int dgap_event(struct board_t *bd)
 		DPR_EVENT(("should be calling xxfail %d\n", __LINE__));
 		/* Let go of board lock */
 		DGAP_UNLOCK(bd->bd_lock, lock_flags);
-		return (-ENXIO);
+		return -ENXIO;
 	}
 
 	/*
@@ -1944,5 +1944,5 @@ next:
 	writew(tail, &(eaddr->ev_tail));
 	DGAP_UNLOCK(bd->bd_lock, lock_flags);
 
-	return (0);
+	return 0;
 }               
-- 
cgit 


From fa5cd4cf1bd71ee8535cda0799fae40bb89a2243 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 9 Oct 2013 15:58:24 +0530
Subject: staging: dgap: dgap_fep5: Do not use 0 for NULL pointer

Do not compare NULL pointer with 0.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgap/dgap_fep5.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/dgap/dgap_fep5.c b/drivers/staging/dgap/dgap_fep5.c
index 86e9aa663e65..794cf9db8b83 100644
--- a/drivers/staging/dgap/dgap_fep5.c
+++ b/drivers/staging/dgap/dgap_fep5.c
@@ -1245,7 +1245,7 @@ int dgap_param(struct tty_struct *tty)
 		return -ENXIO;
 
         bs = ch->ch_bs;
-	if (bs == 0)
+	if (!bs)
 		return -ENXIO;
 
 	DPR_PARAM(("param start: tdev: %x cflags: %x oflags: %x iflags: %x\n",
-- 
cgit 


From 53fa1f4f1f5234cc2b91b491f00cfa089733c626 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 9 Oct 2013 15:58:25 +0530
Subject: staging: dgap: dgap_tty: Do not use 0 for pointers

0 should not be used instead of NULL for pointers.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgap/dgap_tty.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/dgap/dgap_tty.c b/drivers/staging/dgap/dgap_tty.c
index 924e2bfcbe30..2a7a37298da4 100644
--- a/drivers/staging/dgap/dgap_tty.c
+++ b/drivers/staging/dgap/dgap_tty.c
@@ -595,7 +595,7 @@ static void dgap_sniff_nowait_nolock(struct channel_t *ch, uchar *text, uchar *b
 		/*
 		 *  Loop while data remains.
 		 */
-		while (nbuf > 0 && ch->ch_sniff_buf != 0) {
+		while (nbuf > 0 && ch->ch_sniff_buf) {
 			/*
 			 *  Determine the amount of available space left in the
 			 *  buffer.  If there's none, wait until some appears.
@@ -1107,9 +1107,10 @@ static int dgap_tty_open(struct tty_struct *tty, struct file *file)
 		MAJOR(tty_devnum(tty)), MINOR(tty_devnum(tty)), un, brd->name));
 
 	/*
-	 * Error if channel info pointer is 0.
+	 * Error if channel info pointer is NULL.
 	 */
-	if ((bs = ch->ch_bs) == 0) {
+	bs = ch->ch_bs;
+	if (!bs) {
 		DGAP_UNLOCK(ch->ch_lock, lock_flags2);
 		DGAP_UNLOCK(brd->bd_lock, lock_flags);
 		DPR_OPEN(("%d BS is 0!\n", __LINE__));
-- 
cgit 


From a0d6f2b1dab93d6a16d4d19b7d4b07498c5e04f0 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 9 Oct 2013 15:58:26 +0530
Subject: staging: line6: midi: Use NULL instead of 0 for pointers

Use NULL instead of 0 for pointers.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/line6/midi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/line6/midi.c b/drivers/staging/line6/midi.c
index e3f9a53dbd96..52da4d9d2164 100644
--- a/drivers/staging/line6/midi.c
+++ b/drivers/staging/line6/midi.c
@@ -205,7 +205,7 @@ static void line6_midi_input_trigger(struct snd_rawmidi_substream *substream,
 	if (up)
 		line6->line6midi->substream_receive = substream;
 	else
-		line6->line6midi->substream_receive = 0;
+		line6->line6midi->substream_receive = NULL;
 }
 
 static struct snd_rawmidi_ops line6_midi_output_ops = {
-- 
cgit 


From aad7b60bf1b402913311f2cc4899e691356ea9a2 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 9 Oct 2013 15:58:27 +0530
Subject: staging: lustre: Do not use 0 for NULL pointer in console.c

Do not use 0 for NULL pointer.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/selftest/console.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lnet/selftest/console.c b/drivers/staging/lustre/lnet/selftest/console.c
index 09e4700af640..f1152e4fbcc4 100644
--- a/drivers/staging/lustre/lnet/selftest/console.c
+++ b/drivers/staging/lustre/lnet/selftest/console.c
@@ -797,7 +797,7 @@ lstcon_group_info(char *name, lstcon_ndlist_ent_t *gents_p,
 		return rc;
 	}
 
-	if (dents_up != 0) {
+	if (dents_up) {
 		/* verbose query */
 		rc = lstcon_nodes_getent(&grp->grp_ndl_list,
 					 index_p, count_p, dents_up);
-- 
cgit 


From 968a4e9208c4f8e97dbd00346c25af7cfec05c15 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 9 Oct 2013 15:58:28 +0530
Subject: staging: dgnc: dgnc_tty: Do not use 0 for NULL pointer

Do not use 0 for NULL pointer.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Lidza Louina <lidza.louina@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgnc/dgnc_tty.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/dgnc/dgnc_tty.c b/drivers/staging/dgnc/dgnc_tty.c
index c6fee11632f7..a6c6aba82d72 100644
--- a/drivers/staging/dgnc/dgnc_tty.c
+++ b/drivers/staging/dgnc/dgnc_tty.c
@@ -520,7 +520,7 @@ void dgnc_sniff_nowait_nolock(struct channel_t *ch, uchar *text, uchar *buf, int
 		/*
 		 *  Loop while data remains.
 		 */
-		while (nbuf > 0 && ch->ch_sniff_buf != 0) {
+		while (nbuf > 0 && ch->ch_sniff_buf) {
 			/*
 			 *  Determine the amount of available space left in the
 			 *  buffer.  If there's none, wait until some appears.
-- 
cgit 


From 440ca3f0c56f06676e10333e6a376e89b7683456 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 9 Oct 2013 15:58:29 +0530
Subject: staging: lirc: Do not use 0 for NULL pointer

Do not use 0 for NULL pointer.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Jarod Wilson <jarod@wilsonet.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/media/lirc/lirc_bt829.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/lirc/lirc_bt829.c b/drivers/staging/media/lirc/lirc_bt829.c
index fa31ee7dd6a9..fbbdce4c119f 100644
--- a/drivers/staging/media/lirc/lirc_bt829.c
+++ b/drivers/staging/media/lirc/lirc_bt829.c
@@ -132,7 +132,7 @@ int init_module(void)
 	atir_driver.minor       = -1;
 	atir_driver.code_length = 8;
 	atir_driver.sample_rate = 10;
-	atir_driver.data        = 0;
+	atir_driver.data        = NULL;
 	atir_driver.add_to_buf  = atir_add_to_buf;
 	atir_driver.set_use_inc = atir_set_use_inc;
 	atir_driver.set_use_dec = atir_set_use_dec;
@@ -159,7 +159,7 @@ void cleanup_module(void)
 static int atir_init_start(void)
 {
 	pci_addr_lin = ioremap(pci_addr_phys + DATA_PCI_OFF, 0x400);
-	if (pci_addr_lin == 0) {
+	if (!pci_addr_lin) {
 		pr_info("pci mem must be mapped\n");
 		return 0;
 	}
-- 
cgit 


From 875d2a134ea9977e31069ef9fb8c9bbe29f86d51 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 9 Oct 2013 15:58:30 +0530
Subject: staging: rtl8192u: Use NULL instead of 0

Use NULL instead of 0 for pointer.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r8192U_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index cd0946db025c..c383e6450bd2 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -2009,7 +2009,7 @@ void rtl8192_usb_deleteendpoints(struct net_device *dev)
 	priv->oldaddr = NULL;
 	if (priv->pp_rxskb) {
 		kfree(priv->pp_rxskb);
-		priv->pp_rxskb = 0;
+		priv->pp_rxskb = NULL;
 	}
 }
 #else
-- 
cgit 


From b806ad483abbc625de4fd66055c9befee1b78e5e Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 9 Oct 2013 15:58:31 +0530
Subject: staging: vt6655: Use NULL instead of 0

Use NULL instead of 0 for pointer.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Forest Bond <forest@alittletooquiet.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6655/wroute.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/vt6655/wroute.c b/drivers/staging/vt6655/wroute.c
index b61328fbee87..85302c5e2bac 100644
--- a/drivers/staging/vt6655/wroute.c
+++ b/drivers/staging/vt6655/wroute.c
@@ -179,7 +179,7 @@ bool ROUTEbRelay(PSDevice pDevice, unsigned char *pbySkbData, unsigned int uData
 		pHeadTD = pHeadTD->next;
 	}
 
-	pLastTD->pTDInfo->skb = 0;
+	pLastTD->pTDInfo->skb = NULL;
 	pLastTD->pTDInfo->byFlags = 0;
 
 	pDevice->apCurrTD[TYPE_AC0DMA] = pHeadTD;
-- 
cgit 


From 254f57a92987b6cde6004f58d6b847813dfb9e0e Mon Sep 17 00:00:00 2001
From: Benoit Cousson <bcousson@baylibre.com>
Date: Fri, 11 Oct 2013 15:29:55 -0700
Subject: ARM: OMAP5: hwmod: add missing ocp2scp hwmod data

Add this hwmod data to allow USB3 to work in OMAP5 boards.

Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
[tony@atomide.com: updated to apply against Paul's changes]
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/omap_hwmod_54xx_data.c | 45 ++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/arch/arm/mach-omap2/omap_hwmod_54xx_data.c b/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
index 68a78ef1cbf3..9e08d6994a0b 100644
--- a/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
@@ -1180,6 +1180,42 @@ static struct omap_hwmod omap54xx_spinlock_hwmod = {
 	},
 };
 
+/*
+ * 'ocp2scp' class
+ * bridge to transform ocp interface protocol to scp (serial control port)
+ * protocol
+ */
+
+static struct omap_hwmod_class_sysconfig omap54xx_ocp2scp_sysc = {
+	.rev_offs	= 0x0000,
+	.sysc_offs	= 0x0010,
+	.syss_offs	= 0x0014,
+	.sysc_flags	= (SYSC_HAS_AUTOIDLE | SYSC_HAS_SIDLEMODE |
+			SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class omap54xx_ocp2scp_hwmod_class = {
+	.name	= "ocp2scp",
+	.sysc	= &omap54xx_ocp2scp_sysc,
+};
+
+/* ocp2scp1 */
+static struct omap_hwmod omap54xx_ocp2scp1_hwmod = {
+	.name		= "ocp2scp1",
+	.class		= &omap54xx_ocp2scp_hwmod_class,
+	.clkdm_name	= "l3init_clkdm",
+	.main_clk	= "l4_root_clk_div",
+	.prcm = {
+		.omap4 = {
+			.clkctrl_offs = OMAP54XX_CM_L3INIT_OCP2SCP1_CLKCTRL_OFFSET,
+			.context_offs = OMAP54XX_RM_L3INIT_OCP2SCP1_CONTEXT_OFFSET,
+			.modulemode   = MODULEMODE_HWCTRL,
+		},
+	},
+};
+
 /*
  * 'timer' class
  * general purpose timer module with accurate 1ms tick
@@ -2120,6 +2156,14 @@ static struct omap_hwmod_ocp_if omap54xx_l4_cfg__spinlock = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
+/* l4_cfg -> ocp2scp1 */
+static struct omap_hwmod_ocp_if omap54xx_l4_cfg__ocp2scp1 = {
+	.master		= &omap54xx_l4_cfg_hwmod,
+	.slave		= &omap54xx_ocp2scp1_hwmod,
+	.clk		= "l4_root_clk_div",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
 /* l4_wkup -> timer1 */
 static struct omap_hwmod_ocp_if omap54xx_l4_wkup__timer1 = {
 	.master		= &omap54xx_l4_wkup_hwmod,
@@ -2340,6 +2384,7 @@ static struct omap_hwmod_ocp_if *omap54xx_hwmod_ocp_ifs[] __initdata = {
 	&omap54xx_l4_per__mmc5,
 	&omap54xx_l4_cfg__mpu,
 	&omap54xx_l4_cfg__spinlock,
+	&omap54xx_l4_cfg__ocp2scp1,
 	&omap54xx_l4_wkup__timer1,
 	&omap54xx_l4_per__timer2,
 	&omap54xx_l4_per__timer3,
-- 
cgit 


From 8d71528343c69ce387bd5fdb4fd8dc2b9f69d97c Mon Sep 17 00:00:00 2001
From: Felipe Balbi <balbi@ti.com>
Date: Fri, 11 Oct 2013 15:41:25 -0700
Subject: ARM: configs: omap2plus_defconfig: enable dwc3 and dependencies

DWC3 enables USB3 functionality for OMAP5 boards,
it's safe to enable those drivers in omap2plus_defconfig.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
[tony@atomide.com: updated against other defconfig changes]
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/configs/omap2plus_defconfig | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig
index dad68166520f..98a50c309b90 100644
--- a/arch/arm/configs/omap2plus_defconfig
+++ b/arch/arm/configs/omap2plus_defconfig
@@ -76,6 +76,7 @@ CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
 CONFIG_DMA_CMA=y
+CONFIG_OMAP_OCP2SCP=y
 CONFIG_CONNECTOR=y
 CONFIG_MTD=y
 CONFIG_MTD_CMDLINE_PARTS=y
@@ -168,9 +169,11 @@ CONFIG_DRA752_THERMAL=y
 CONFIG_WATCHDOG=y
 CONFIG_OMAP_WATCHDOG=y
 CONFIG_TWL4030_WATCHDOG=y
+CONFIG_MFD_PALMAS=y
 CONFIG_MFD_TPS65217=y
 CONFIG_MFD_TPS65910=y
 CONFIG_TWL6040_CORE=y
+CONFIG_REGULATOR_PALMAS=y
 CONFIG_REGULATOR_TPS65023=y
 CONFIG_REGULATOR_TPS6507X=y
 CONFIG_REGULATOR_TPS65217=y
@@ -213,8 +216,11 @@ CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
 CONFIG_USB_MON=y
 CONFIG_USB_WDM=y
 CONFIG_USB_STORAGE=y
+CONFIG_USB_DWC3=m
 CONFIG_USB_TEST=y
 CONFIG_NOP_USB_XCEIV=y
+CONFIG_OMAP_USB2=y
+CONFIG_OMAP_USB3=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DEBUG=y
 CONFIG_USB_GADGET_DEBUG_FILES=y
@@ -242,6 +248,8 @@ CONFIG_RTC_DRV_OMAP=y
 CONFIG_DMADEVICES=y
 CONFIG_TI_EDMA=y
 CONFIG_DMA_OMAP=y
+CONFIG_EXTCON=y
+CONFIG_EXTCON_PALMAS=y
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
 # CONFIG_EXT3_FS_XATTR is not set
-- 
cgit 


From aa0cb59cfa781d5cb44dd981153d67168d34f91b Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Thu, 10 Oct 2013 10:43:47 +0300
Subject: staging: rtl8192u: remove #ifdef JOHN_

This patch removes the guards #ifdef JOHN_HWSEC, #ifdef JOHN_DUMP_TXDESC and
because the code inside them calls some undefined functions (e.g read_rtl8225,
rtl8187_read_phy etc).

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r8192U.h      |   8 --
 drivers/staging/rtl8192u/r8192U_core.c |  16 ---
 drivers/staging/rtl8192u/r8192U_wx.c   | 200 +--------------------------------
 3 files changed, 1 insertion(+), 223 deletions(-)

diff --git a/drivers/staging/rtl8192u/r8192U.h b/drivers/staging/rtl8192u/r8192U.h
index 4c46bb25a6b3..ad3bc567d35a 100644
--- a/drivers/staging/rtl8192u/r8192U.h
+++ b/drivers/staging/rtl8192u/r8192U.h
@@ -1154,14 +1154,6 @@ typedef enum {
 	NIC_8192E = 3,
 } nic_t;
 
-
-#ifdef JOHN_HWSEC
-struct ssid_thread {
-	struct net_device *dev;
-	u8 name[IW_ESSID_MAX_SIZE + 1];
-};
-#endif
-
 bool init_firmware(struct net_device *dev);
 short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb);
 short rtl8192_tx(struct net_device *dev, struct sk_buff *skb);
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index c383e6450bd2..42d1f214371b 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -1608,13 +1608,6 @@ short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb)
 	idx_pipe = txqueue2outpipe(priv, queue_index);
 #else
 	idx_pipe = 0x04;
-#endif
-#ifdef JOHN_DUMP_TXDESC
-	int i;
-	printk("<Tx descriptor>--rate %x---", rate);
-	for (i = 0; i < 8; i++)
-		printk("%8x ", tx[i]);
-	printk("\n");
 #endif
 	usb_fill_bulk_urb(tx_urb, priv->udev, usb_sndbulkpipe(priv->udev, idx_pipe),
 			  skb->data, skb->len, rtl8192_tx_isr, skb);
@@ -3859,15 +3852,6 @@ int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 				}
 			}
 		}
-#ifdef JOHN_HWSEC_DEBUG
-		//john's test 0711
-		printk("@@ wrq->u pointer = ");
-		for (i = 0; i < wrq->u.data.length; i++) {
-			if (i%10 == 0) printk("\n");
-			printk("%8x|", ((u32 *)wrq->u.data.pointer)[i]);
-		}
-		printk("\n");
-#endif /*JOHN_HWSEC_DEBUG*/
 		ret = ieee80211_wpa_supplicant_ioctl(priv->ieee80211, &wrq->u.data);
 		break;
 
diff --git a/drivers/staging/rtl8192u/r8192U_wx.c b/drivers/staging/rtl8192u/r8192U_wx.c
index 61f6620213e2..c70af014a316 100644
--- a/drivers/staging/rtl8192u/r8192U_wx.c
+++ b/drivers/staging/rtl8192u/r8192U_wx.c
@@ -127,156 +127,6 @@ static int r8192_wx_get_power(struct net_device *dev,
 	return ieee80211_wx_get_power(priv->ieee80211,info,wrqu,extra);
 }
 
-#ifdef JOHN_IOCTL
-u16 read_rtl8225(struct net_device *dev, u8 addr);
-void write_rtl8225(struct net_device *dev, u8 adr, u16 data);
-u32 john_read_rtl8225(struct net_device *dev, u8 adr);
-void _write_rtl8225(struct net_device *dev, u8 adr, u16 data);
-
-static int r8192_wx_read_regs(struct net_device *dev,
-			       struct iw_request_info *info,
-			       union iwreq_data *wrqu, char *extra)
-{
-	struct r8192_priv *priv = ieee80211_priv(dev);
-	u8 addr;
-	u16 data1;
-
-	down(&priv->wx_sem);
-
-
-	get_user(addr,(u8 *)wrqu->data.pointer);
-	data1 = read_rtl8225(dev, addr);
-	wrqu->data.length = data1;
-
-	up(&priv->wx_sem);
-	return 0;
-
-}
-
-static int r8192_wx_write_regs(struct net_device *dev,
-			       struct iw_request_info *info,
-			       union iwreq_data *wrqu, char *extra)
-{
-	struct r8192_priv *priv = ieee80211_priv(dev);
-	u8 addr;
-
-	down(&priv->wx_sem);
-
-	get_user(addr, (u8 *)wrqu->data.pointer);
-	write_rtl8225(dev, addr, wrqu->data.length);
-
-	up(&priv->wx_sem);
-	return 0;
-
-}
-
-void rtl8187_write_phy(struct net_device *dev, u8 adr, u32 data);
-u8 rtl8187_read_phy(struct net_device *dev,u8 adr, u32 data);
-
-static int r8192_wx_read_bb(struct net_device *dev,
-			       struct iw_request_info *info,
-			       union iwreq_data *wrqu, char *extra)
-{
-	struct r8192_priv *priv = ieee80211_priv(dev);
-	u8 databb;
-
-	down(&priv->wx_sem);
-
-	databb = rtl8187_read_phy(dev, (u8)wrqu->data.length, 0x00000000);
-	wrqu->data.length = databb;
-
-	up(&priv->wx_sem);
-	return 0;
-}
-
-void rtl8187_write_phy(struct net_device *dev, u8 adr, u32 data);
-static int r8192_wx_write_bb(struct net_device *dev,
-			       struct iw_request_info *info,
-			       union iwreq_data *wrqu, char *extra)
-{
-	struct r8192_priv *priv = ieee80211_priv(dev);
-	u8 databb;
-
-	down(&priv->wx_sem);
-
-	get_user(databb, (u8 *)wrqu->data.pointer);
-	rtl8187_write_phy(dev, wrqu->data.length, databb);
-
-	up(&priv->wx_sem);
-	return 0;
-
-}
-
-
-static int r8192_wx_write_nicb(struct net_device *dev,
-			       struct iw_request_info *info,
-			       union iwreq_data *wrqu, char *extra)
-{
-	struct r8192_priv *priv = ieee80211_priv(dev);
-	u32 addr;
-
-	down(&priv->wx_sem);
-
-	get_user(addr, (u32 *)wrqu->data.pointer);
-	write_nic_byte(dev, addr, wrqu->data.length);
-
-	up(&priv->wx_sem);
-	return 0;
-
-}
-static int r8192_wx_read_nicb(struct net_device *dev,
-			       struct iw_request_info *info,
-			       union iwreq_data *wrqu, char *extra)
-{
-	struct r8192_priv *priv = ieee80211_priv(dev);
-	u32 addr;
-	u16 data1;
-
-	down(&priv->wx_sem);
-
-	get_user(addr,(u32 *)wrqu->data.pointer);
-	read_nic_byte(dev, addr, &data1);
-	wrqu->data.length = data1;
-
-	up(&priv->wx_sem);
-	return 0;
-}
-
-static int r8192_wx_get_ap_status(struct net_device *dev,
-			       struct iw_request_info *info,
-			       union iwreq_data *wrqu, char *extra)
-{
-	struct r8192_priv *priv = ieee80211_priv(dev);
-	struct ieee80211_device *ieee = priv->ieee80211;
-	struct ieee80211_network *target;
-	int name_len;
-
-	down(&priv->wx_sem);
-
-	//count the length of input ssid
-	for(name_len=0 ; ((char *)wrqu->data.pointer)[name_len]!='\0' ; name_len++);
-
-	//search for the corresponding info which is received
-	list_for_each_entry(target, &ieee->network_list, list) {
-		if ( (target->ssid_len == name_len) &&
-		     (strncmp(target->ssid, (char *)wrqu->data.pointer, name_len)==0)){
-			if(target->wpa_ie_len>0 || target->rsn_ie_len>0 )
-				//set flags=1 to indicate this ap is WPA
-				wrqu->data.flags = 1;
-			else wrqu->data.flags = 0;
-
-
-		break;
-		}
-	}
-
-	up(&priv->wx_sem);
-	return 0;
-}
-
-
-
-#endif
 static int r8192_wx_force_reset(struct net_device *dev,
 		struct iw_request_info *info,
 		union iwreq_data *wrqu, char *extra)
@@ -1106,46 +956,7 @@ static const struct iw_priv_args r8192_private_args[] = {
 	{
 		SIOCIWFIRSTPRIV + 0x2,
 		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "rawtx"
-	}
-#ifdef JOHN_IOCTL
-	,
-	{
-		SIOCIWFIRSTPRIV + 0x3,
-		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "readRF"
-	}
-	,
-	{
-		SIOCIWFIRSTPRIV + 0x4,
-		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "writeRF"
-	}
-	,
-	{
-		SIOCIWFIRSTPRIV + 0x5,
-		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "readBB"
-	}
-	,
-	{
-		SIOCIWFIRSTPRIV + 0x6,
-		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "writeBB"
-	}
-	,
-	{
-		SIOCIWFIRSTPRIV + 0x7,
-		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "readnicb"
-	}
-	,
-	{
-		SIOCIWFIRSTPRIV + 0x8,
-		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "writenicb"
-	}
-	,
-	{
-		SIOCIWFIRSTPRIV + 0x9,
-		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "apinfo"
-	}
-
-#endif
-	,
+	},
 	{
 		SIOCIWFIRSTPRIV + 0x3,
 		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "forcereset"
@@ -1163,15 +974,6 @@ static iw_handler r8192_private_handler[] = {
 //	r8192_wx_set_monitor_type,
 	r8192_wx_set_scan_type,
 	r8192_wx_set_rawtx,
-#ifdef JOHN_IOCTL
-	r8192_wx_read_regs,
-	r8192_wx_write_regs,
-	r8192_wx_read_bb,
-	r8192_wx_write_bb,
-	r8192_wx_read_nicb,
-	r8192_wx_write_nicb,
-	r8192_wx_get_ap_status,
-#endif
 	//r8192_wx_null,
 	r8192_wx_force_reset,
 };
-- 
cgit 


From 8f519cad49ae956787b6e5ee963b91f9601bee6a Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Thu, 10 Oct 2013 10:43:48 +0300
Subject: staging: rtl8192u: add space after } and , in r819xU_cmdpkt.h

This patch fixes white space after } and , so that the code becomes more
readable and conforms to the linux kernel coding style.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r819xU_cmdpkt.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/rtl8192u/r819xU_cmdpkt.h b/drivers/staging/rtl8192u/r819xU_cmdpkt.h
index c79878af7021..09030fd1b5ba 100644
--- a/drivers/staging/rtl8192u/r819xU_cmdpkt.h
+++ b/drivers/staging/rtl8192u/r819xU_cmdpkt.h
@@ -52,7 +52,7 @@ typedef struct tag_cmd_pkt_tx_feedback {
 	// DWORD 5
 	u16	reserve3;			/* */
 	u16	duration;			/* */
-}cmpk_txfb_t;
+} cmpk_txfb_t;
 
 /* 2. RX side: Interrupt status packet. It includes Beacon State,
 	  Beacon Timer Interrupt and other useful informations in MAC ISR Reg. */
@@ -61,7 +61,7 @@ typedef struct tag_cmd_pkt_interrupt_status {
 	u8	length;				/* Command packet length. */
 	u16	reserve;
 	u32	interrupt_status;				/* Interrupt Status. */
-}cmpk_intr_sta_t;
+} cmpk_intr_sta_t;
 
 
 /* 3. TX side: Set configuration packet. */
@@ -79,7 +79,7 @@ typedef struct tag_cmd_pkt_set_configuration {
 	u8	cfg_offset;			/* Configuration info. */
 	u32	value;				/* */
 	u32	mask;				/* */
-}cmpk_set_cfg_t;
+} cmpk_set_cfg_t;
 
 /* 4. Both side : TX/RX query configuraton packet. The query structure is the
       same as set configuration. */
@@ -122,7 +122,7 @@ typedef struct tag_tx_stats_feedback { // PJ quick rxcmd 09042007
 	u16	reserve3_23;
 	u8	reserve3_1;
 	u8	rate;
-}__attribute__((packed)) cmpk_tx_status_t;
+} __attribute__((packed)) cmpk_tx_status_t;
 
 /* 6. Debug feedback message. */
 /* 2007/10/23 MH Define RX debug message  */
@@ -136,7 +136,7 @@ typedef struct tag_rx_debug_message_feedback {
 	// DW 1-??
 	// Variable debug message.
 
-}cmpk_rx_dbginfo_t;
+} cmpk_rx_dbginfo_t;
 
 /* 2008/03/20 MH Define transmit rate history. For big endian format. */
 typedef struct tag_tx_rate_history {
@@ -170,7 +170,7 @@ typedef struct tag_tx_rate_history {
 	// DW 31-38	BW=1 SG=1
 	u16	ht_mcs[4][16];
 
-}__attribute__((packed)) cmpk_tx_rahis_t;
+} __attribute__((packed)) cmpk_tx_rahis_t;
 
 typedef enum tag_command_packet_directories
 {
@@ -183,14 +183,14 @@ typedef enum tag_command_packet_directories
     RX_TX_PER_PKT_FEEDBACK		= 6,
     RX_TX_RATE_HISTORY		= 7,
     RX_CMD_ELE_MAX
-}cmpk_element_e;
+} cmpk_element_e;
 
 typedef enum _rt_status{
 	RT_STATUS_SUCCESS,
 	RT_STATUS_FAILURE,
 	RT_STATUS_PENDING,
 	RT_STATUS_RESOURCE
-}rt_status,*prt_status;
+} rt_status, *prt_status;
 
 extern  u32 cmpk_message_handle_rx(struct net_device *dev, struct ieee80211_rx_stats *pstats);
 extern rt_status SendTxCommandPacket( struct net_device *dev, void *pData, u32 DataLen);
-- 
cgit 


From b777736b473b31e2e5912f86761a590d6a82db3d Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Thu, 10 Oct 2013 10:43:49 +0300
Subject: staging: rtl8192u: fix line size in r819xU_cmdpkt.h

This patch reduces the line length below 80 chars to improve code readability.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r819xU_cmdpkt.h | 28 +++++++++++++++-------------
 1 file changed, 15 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/rtl8192u/r819xU_cmdpkt.h b/drivers/staging/rtl8192u/r819xU_cmdpkt.h
index 09030fd1b5ba..2e079c7f0ac2 100644
--- a/drivers/staging/rtl8192u/r819xU_cmdpkt.h
+++ b/drivers/staging/rtl8192u/r819xU_cmdpkt.h
@@ -1,17 +1,17 @@
 #ifndef R819XUSB_CMDPKT_H
 #define R819XUSB_CMDPKT_H
 /* Different command packet have dedicated message length and definition. */
-#define		CMPK_RX_TX_FB_SIZE					sizeof(cmpk_txfb_t)		//20
-#define		CMPK_TX_SET_CONFIG_SIZE				sizeof(cmpk_set_cfg_t)	//16
-#define		CMPK_BOTH_QUERY_CONFIG_SIZE			sizeof(cmpk_set_cfg_t)	//16
-#define		CMPK_RX_TX_STS_SIZE					sizeof(cmpk_tx_status_t)//
-#define		CMPK_RX_DBG_MSG_SIZE			sizeof(cmpk_rx_dbginfo_t)//
-#define		CMPK_TX_RAHIS_SIZE			sizeof(cmpk_tx_rahis_t)
+#define		CMPK_RX_TX_FB_SIZE		sizeof(cmpk_txfb_t)	//20
+#define		CMPK_TX_SET_CONFIG_SIZE		sizeof(cmpk_set_cfg_t)	//16
+#define		CMPK_BOTH_QUERY_CONFIG_SIZE	sizeof(cmpk_set_cfg_t)	//16
+#define		CMPK_RX_TX_STS_SIZE		sizeof(cmpk_tx_status_t)//
+#define		CMPK_RX_DBG_MSG_SIZE		sizeof(cmpk_rx_dbginfo_t)//
+#define		CMPK_TX_RAHIS_SIZE		sizeof(cmpk_tx_rahis_t)
 
 /* 2008/05/08 amy For USB constant. */
-#define ISR_TxBcnOk					BIT27			// Transmit Beacon OK
-#define ISR_TxBcnErr				BIT26			// Transmit Beacon Error
-#define ISR_BcnTimerIntr			BIT13			// Beacon Timer Interrupt
+#define ISR_TxBcnOk		BIT27		// Transmit Beacon OK
+#define ISR_TxBcnErr		BIT26		// Transmit Beacon Error
+#define ISR_BcnTimerIntr	BIT13		// Beacon Timer Interrupt
 
 
 /* Define element ID of command packet. */
@@ -55,12 +55,12 @@ typedef struct tag_cmd_pkt_tx_feedback {
 } cmpk_txfb_t;
 
 /* 2. RX side: Interrupt status packet. It includes Beacon State,
-	  Beacon Timer Interrupt and other useful informations in MAC ISR Reg. */
+ * Beacon Timer Interrupt and other useful informations in MAC ISR Reg. */
 typedef struct tag_cmd_pkt_interrupt_status {
 	u8	element_id;			/* Command packet type. */
 	u8	length;				/* Command packet length. */
 	u16	reserve;
-	u32	interrupt_status;				/* Interrupt Status. */
+	u32	interrupt_status;		/* Interrupt Status. */
 } cmpk_intr_sta_t;
 
 
@@ -192,8 +192,10 @@ typedef enum _rt_status{
 	RT_STATUS_RESOURCE
 } rt_status, *prt_status;
 
-extern  u32 cmpk_message_handle_rx(struct net_device *dev, struct ieee80211_rx_stats *pstats);
-extern rt_status SendTxCommandPacket( struct net_device *dev, void *pData, u32 DataLen);
+extern  u32 cmpk_message_handle_rx(struct net_device *dev,
+		struct ieee80211_rx_stats *pstats);
+extern rt_status SendTxCommandPacket( struct net_device *dev,
+		void *pData, u32 DataLen);
 
 
 #endif
-- 
cgit 


From 56340097ca987e23585cb8f246b6fecf9d4454c2 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Thu, 10 Oct 2013 10:43:50 +0300
Subject: staging: rtl8192u: fix comments in r819xU_cmdpkt.h

This patch fixes the comments in r819xU_cmdpkt.h by:
* removing any empty or unnecessary comments
* replacing the // comments with /* */ comments
* removing date and author information from comments

This is done to improve code readability and to conform to linux kernel
coding style.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r819xU_cmdpkt.h | 173 +++++++++++++++----------------
 1 file changed, 82 insertions(+), 91 deletions(-)

diff --git a/drivers/staging/rtl8192u/r819xU_cmdpkt.h b/drivers/staging/rtl8192u/r819xU_cmdpkt.h
index 2e079c7f0ac2..f7c68e2a9523 100644
--- a/drivers/staging/rtl8192u/r819xU_cmdpkt.h
+++ b/drivers/staging/rtl8192u/r819xU_cmdpkt.h
@@ -1,17 +1,17 @@
 #ifndef R819XUSB_CMDPKT_H
 #define R819XUSB_CMDPKT_H
 /* Different command packet have dedicated message length and definition. */
-#define		CMPK_RX_TX_FB_SIZE		sizeof(cmpk_txfb_t)	//20
-#define		CMPK_TX_SET_CONFIG_SIZE		sizeof(cmpk_set_cfg_t)	//16
-#define		CMPK_BOTH_QUERY_CONFIG_SIZE	sizeof(cmpk_set_cfg_t)	//16
-#define		CMPK_RX_TX_STS_SIZE		sizeof(cmpk_tx_status_t)//
-#define		CMPK_RX_DBG_MSG_SIZE		sizeof(cmpk_rx_dbginfo_t)//
+#define		CMPK_RX_TX_FB_SIZE		sizeof(cmpk_txfb_t)	/* 20 */
+#define		CMPK_TX_SET_CONFIG_SIZE		sizeof(cmpk_set_cfg_t)	/* 16 */
+#define		CMPK_BOTH_QUERY_CONFIG_SIZE	sizeof(cmpk_set_cfg_t)	/* 16 */
+#define		CMPK_RX_TX_STS_SIZE		sizeof(cmpk_tx_status_t)
+#define		CMPK_RX_DBG_MSG_SIZE		sizeof(cmpk_rx_dbginfo_t)
 #define		CMPK_TX_RAHIS_SIZE		sizeof(cmpk_tx_rahis_t)
 
 /* 2008/05/08 amy For USB constant. */
-#define ISR_TxBcnOk		BIT27		// Transmit Beacon OK
-#define ISR_TxBcnErr		BIT26		// Transmit Beacon Error
-#define ISR_BcnTimerIntr	BIT13		// Beacon Timer Interrupt
+#define ISR_TxBcnOk		BIT27		/* Transmit Beacon OK */
+#define ISR_TxBcnErr		BIT26		/* Transmit Beacon Error */
+#define ISR_BcnTimerIntr	BIT13		/* Beacon Timer Interrupt */
 
 
 /* Define element ID of command packet. */
@@ -20,38 +20,38 @@
 /* Define different command packet structure. */
 /* 1. RX side: TX feedback packet. */
 typedef struct tag_cmd_pkt_tx_feedback {
-	// DWORD 0
+	/* DWORD 0 */
 	u8	element_id;			/* Command packet type. */
 	u8	length;				/* Command packet length. */
-	/* 2007/07/05 MH Change tx feedback info field. */
+	/* Change tx feedback info field. */
 	/*------TX Feedback Info Field */
-	u8	TID:4;				/* */
-	u8	fail_reason:3;		/* */
+	u8	TID:4;
+	u8	fail_reason:3;
 	u8	tok:1;				/* Transmit ok. */
-	u8	reserve1:4;			/* */
-	u8	pkt_type:2;		/* */
-	u8	bandwidth:1;		/* */
-	u8	qos_pkt:1;			/* */
+	u8	reserve1:4;
+	u8	pkt_type:2;
+	u8	bandwidth:1;
+	u8	qos_pkt:1;
 
-	// DWORD 1
-	u8	reserve2;			/* */
+	/* DWORD 1 */
+	u8	reserve2;
 	/*------TX Feedback Info Field */
-	u8	retry_cnt;			/* */
-	u16	pkt_id;				/* */
+	u8	retry_cnt;
+	u16	pkt_id;
 
-	// DWORD 3
-	u16	seq_num;			/* */
+	/* DWORD 3 */
+	u16	seq_num;
 	u8	s_rate;				/* Start rate. */
 	u8	f_rate;				/* Final rate. */
 
-	// DWORD 4
-	u8	s_rts_rate;			/* */
-	u8	f_rts_rate;			/* */
-	u16	pkt_length;			/* */
+	/* DWORD 4 */
+	u8	s_rts_rate;
+	u8	f_rts_rate;
+	u16	pkt_length;
 
-	// DWORD 5
-	u16	reserve3;			/* */
-	u16	duration;			/* */
+	/* DWORD 5 */
+	u16	reserve3;
+	u16	duration;
 } cmpk_txfb_t;
 
 /* 2. RX side: Interrupt status packet. It includes Beacon State,
@@ -68,17 +68,18 @@ typedef struct tag_cmd_pkt_interrupt_status {
 typedef struct tag_cmd_pkt_set_configuration {
 	u8	element_id;			/* Command packet type. */
 	u8	length;				/* Command packet length. */
-	u16	reserve1;			/* */
+	u16	reserve1;
+	/* Configuration info. */
 	u8	cfg_reserve1:3;
-	u8	cfg_size:2;			/* Configuration info. */
-	u8	cfg_type:2;			/* Configuration info. */
-	u8	cfg_action:1;		/* Configuration info. */
-	u8	cfg_reserve2;		/* Configuration info. */
-	u8	cfg_page:4;			/* Configuration info. */
-	u8	cfg_reserve3:4;		/* Configuration info. */
-	u8	cfg_offset;			/* Configuration info. */
-	u32	value;				/* */
-	u32	mask;				/* */
+	u8	cfg_size:2;
+	u8	cfg_type:2;
+	u8	cfg_action:1;
+	u8	cfg_reserve2;
+	u8	cfg_page:4;
+	u8	cfg_reserve3:4;
+	u8	cfg_offset;
+	u32	value;
+	u32	mask;
 } cmpk_set_cfg_t;
 
 /* 4. Both side : TX/RX query configuraton packet. The query structure is the
@@ -86,88 +87,78 @@ typedef struct tag_cmd_pkt_set_configuration {
 #define		cmpk_query_cfg_t	cmpk_set_cfg_t
 
 /* 5. Multi packet feedback status. */
-typedef struct tag_tx_stats_feedback { // PJ quick rxcmd 09042007
-	// For endian transfer --> Driver will not the same as firmware structure.
-	// DW 0
+typedef struct tag_tx_stats_feedback {
+	/* For endian transfer --> Driver will not the same as
+	   firmware structure. */
+	/* DW 0 */
 	u16	reserve1;
-	u8	length;				// Command packet length
-	u8	element_id;			// Command packet type
+	u8	length;				/* Command packet length */
+	u8	element_id;			/* Command packet type */
 
-	// DW 1
-	u16	txfail;				// Tx Fail count
-	u16	txok;				// Tx ok count
+	/* DW 1 */
+	u16	txfail;				/* Tx fail count */
+	u16	txok;				/* Tx ok count */
 
-	// DW 2
-	u16	txmcok;				// tx multicast
-	u16	txretry;			// Tx Retry count
+	/* DW 2 */
+	u16	txmcok;				/* Tx multicast */
+	u16	txretry;			/* Tx retry count */
 
-	// DW 3
-	u16  txucok;				// tx unicast
-	u16	txbcok;				// tx broadcast
+	/* DW 3 */
+	u16  txucok;				/* Tx unicast */
+	u16	txbcok;				/* Tx broadcast */
 
-	// DW 4
-	u16	txbcfail;			//
-	u16	txmcfail;			//
+	/* DW 4 */
+	u16	txbcfail;
+	u16	txmcfail;
 
-	// DW 5
-	u16	reserve2;			//
-	u16	txucfail;			//
+	/* DW 5 */
+	u16	reserve2;
+	u16	txucfail;
 
-	// DW 6-8
+	/* DW 6-8 */
 	u32	txmclength;
 	u32	txbclength;
 	u32	txuclength;
 
-	// DW 9
+	/* DW 9 */
 	u16	reserve3_23;
 	u8	reserve3_1;
 	u8	rate;
 } __attribute__((packed)) cmpk_tx_status_t;
 
 /* 6. Debug feedback message. */
-/* 2007/10/23 MH Define RX debug message  */
+/* Define RX debug message  */
 typedef struct tag_rx_debug_message_feedback {
-	// For endian transfer --> for driver
-	// DW 0
+	/* For endian transfer --> for driver */
+	/* DW 0 */
 	u16	reserve1;
-	u8	length;				// Command packet length
-	u8	element_id;			// Command packet type
+	u8	length;				/* Command packet length */
+	u8	element_id;			/* Command packet type */
 
-	// DW 1-??
-	// Variable debug message.
+	/* DW 1-?? */
+	/* Variable debug message. */
 
 } cmpk_rx_dbginfo_t;
 
-/* 2008/03/20 MH Define transmit rate history. For big endian format. */
+/* Define transmit rate history. For big endian format. */
 typedef struct tag_tx_rate_history {
-	// For endian transfer --> for driver
-	// DW 0
-	u8	element_id;			// Command packet type
-	u8	length;				// Command packet length
+	/* For endian transfer --> for driver */
+	/* DW 0 */
+	u8	element_id;			/* Command packet type */
+	u8	length;				/* Command packet length */
 	u16	reserved1;
 
-	// DW 1-2	CCK rate counter
+	/* DW 1-2	CCK rate counter */
 	u16	cck[4];
 
-	// DW 3-6
+	/* DW 3-6 */
 	u16	ofdm[8];
 
-	// DW 7-14
-	//UINT16	MCS_BW0_SG0[16];
-
-	// DW 15-22
-	//UINT16	MCS_BW1_SG0[16];
-
-	// DW 23-30
-	//UINT16	MCS_BW0_SG1[16];
-
-	// DW 31-38
-	//UINT16	MCS_BW1_SG1[16];
-
-	// DW 7-14	BW=0 SG=0
-	// DW 15-22	BW=1 SG=0
-	// DW 23-30	BW=0 SG=1
-	// DW 31-38	BW=1 SG=1
+	/* DW 7-14	BW=0 SG=0
+	 * DW 15-22	BW=1 SG=0
+	 * DW 23-30	BW=0 SG=1
+	 * DW 31-38	BW=1 SG=1
+	 */
 	u16	ht_mcs[4][16];
 
 } __attribute__((packed)) cmpk_tx_rahis_t;
-- 
cgit 


From b7cc1d0ce9363f4bfd743b154c4c8dfd9281c9b9 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Thu, 10 Oct 2013 10:43:51 +0300
Subject: staging: rtl8192u: fix space at the start of lines in r819xU_cmdpkt.h

This patch fixes the following checkpatch warning:
WARNING: please, no spaces at the start of a line

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r819xU_cmdpkt.h | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/rtl8192u/r819xU_cmdpkt.h b/drivers/staging/rtl8192u/r819xU_cmdpkt.h
index f7c68e2a9523..9845e9aa29a8 100644
--- a/drivers/staging/rtl8192u/r819xU_cmdpkt.h
+++ b/drivers/staging/rtl8192u/r819xU_cmdpkt.h
@@ -165,15 +165,15 @@ typedef struct tag_tx_rate_history {
 
 typedef enum tag_command_packet_directories
 {
-    RX_TX_FEEDBACK = 0,
-    RX_INTERRUPT_STATUS		= 1,
-    TX_SET_CONFIG				= 2,
-    BOTH_QUERY_CONFIG			= 3,
-    RX_TX_STATUS				= 4,
-    RX_DBGINFO_FEEDBACK		= 5,
-    RX_TX_PER_PKT_FEEDBACK		= 6,
-    RX_TX_RATE_HISTORY		= 7,
-    RX_CMD_ELE_MAX
+	RX_TX_FEEDBACK = 0,
+	RX_INTERRUPT_STATUS		= 1,
+	TX_SET_CONFIG				= 2,
+	BOTH_QUERY_CONFIG			= 3,
+	RX_TX_STATUS				= 4,
+	RX_DBGINFO_FEEDBACK		= 5,
+	RX_TX_PER_PKT_FEEDBACK		= 6,
+	RX_TX_RATE_HISTORY		= 7,
+	RX_CMD_ELE_MAX
 } cmpk_element_e;
 
 typedef enum _rt_status{
-- 
cgit 


From acd537427c448422a9efdabe28d881d7df00bff1 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Thu, 10 Oct 2013 10:43:52 +0300
Subject: staging: rtl8192u: fix space after ( in r819xU_cmdpkt.h

This patch removes prohibited space after ( in r819xU_cmdpkt.h according to
the linux kernel coding style convention.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r819xU_cmdpkt.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8192u/r819xU_cmdpkt.h b/drivers/staging/rtl8192u/r819xU_cmdpkt.h
index 9845e9aa29a8..7ec8df0e0ec8 100644
--- a/drivers/staging/rtl8192u/r819xU_cmdpkt.h
+++ b/drivers/staging/rtl8192u/r819xU_cmdpkt.h
@@ -185,7 +185,7 @@ typedef enum _rt_status{
 
 extern  u32 cmpk_message_handle_rx(struct net_device *dev,
 		struct ieee80211_rx_stats *pstats);
-extern rt_status SendTxCommandPacket( struct net_device *dev,
+extern rt_status SendTxCommandPacket(struct net_device *dev,
 		void *pData, u32 DataLen);
 
 
-- 
cgit 


From feada066c851a45e63e6aeeabada5605bde0af66 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Thu, 10 Oct 2013 10:43:53 +0300
Subject: staging: rtl8192u: fix alignment in r819xU_cmdpkt.h

This patch fixes alignment issues in r819xU_cmdpkt.h to improve code
readability.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r819xU_cmdpkt.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/rtl8192u/r819xU_cmdpkt.h b/drivers/staging/rtl8192u/r819xU_cmdpkt.h
index 7ec8df0e0ec8..9a7b6f6e86be 100644
--- a/drivers/staging/rtl8192u/r819xU_cmdpkt.h
+++ b/drivers/staging/rtl8192u/r819xU_cmdpkt.h
@@ -104,7 +104,7 @@ typedef struct tag_tx_stats_feedback {
 	u16	txretry;			/* Tx retry count */
 
 	/* DW 3 */
-	u16  txucok;				/* Tx unicast */
+	u16	txucok;				/* Tx unicast */
 	u16	txbcok;				/* Tx broadcast */
 
 	/* DW 4 */
@@ -165,11 +165,11 @@ typedef struct tag_tx_rate_history {
 
 typedef enum tag_command_packet_directories
 {
-	RX_TX_FEEDBACK = 0,
+	RX_TX_FEEDBACK			= 0,
 	RX_INTERRUPT_STATUS		= 1,
-	TX_SET_CONFIG				= 2,
-	BOTH_QUERY_CONFIG			= 3,
-	RX_TX_STATUS				= 4,
+	TX_SET_CONFIG			= 2,
+	BOTH_QUERY_CONFIG		= 3,
+	RX_TX_STATUS			= 4,
 	RX_DBGINFO_FEEDBACK		= 5,
 	RX_TX_PER_PKT_FEEDBACK		= 6,
 	RX_TX_RATE_HISTORY		= 7,
@@ -183,7 +183,7 @@ typedef enum _rt_status{
 	RT_STATUS_RESOURCE
 } rt_status, *prt_status;
 
-extern  u32 cmpk_message_handle_rx(struct net_device *dev,
+extern u32 cmpk_message_handle_rx(struct net_device *dev,
 		struct ieee80211_rx_stats *pstats);
 extern rt_status SendTxCommandPacket(struct net_device *dev,
 		void *pData, u32 DataLen);
-- 
cgit 


From f96f8df28c92ac212541ff434f15381abd0d01c5 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Thu, 10 Oct 2013 10:43:54 +0300
Subject: staging: rtl8192u: fix open brace position in r819xU_cmdpkt.h

This patch fixes the following checkpatch warning and error:
WARNING: missing space after enum definition
ERROR: open brace '{' following enum go on the same line

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r819xU_cmdpkt.h | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/rtl8192u/r819xU_cmdpkt.h b/drivers/staging/rtl8192u/r819xU_cmdpkt.h
index 9a7b6f6e86be..6f213819a17f 100644
--- a/drivers/staging/rtl8192u/r819xU_cmdpkt.h
+++ b/drivers/staging/rtl8192u/r819xU_cmdpkt.h
@@ -163,8 +163,7 @@ typedef struct tag_tx_rate_history {
 
 } __attribute__((packed)) cmpk_tx_rahis_t;
 
-typedef enum tag_command_packet_directories
-{
+typedef enum tag_command_packet_directories {
 	RX_TX_FEEDBACK			= 0,
 	RX_INTERRUPT_STATUS		= 1,
 	TX_SET_CONFIG			= 2,
@@ -176,7 +175,7 @@ typedef enum tag_command_packet_directories
 	RX_CMD_ELE_MAX
 } cmpk_element_e;
 
-typedef enum _rt_status{
+typedef enum _rt_status {
 	RT_STATUS_SUCCESS,
 	RT_STATUS_FAILURE,
 	RT_STATUS_PENDING,
-- 
cgit 


From 889cfe2f03b2a76dd850a31b4031405941b7a551 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Thu, 10 Oct 2013 10:43:55 +0300
Subject: staging: rtl8192u: use __packed instead of __attribute__((packed))

This patch fixes the following checkpatch warning:
WARNING: __packed is preferred over __attribute__((packed))

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r819xU_HTType.h | 4 ++--
 drivers/staging/rtl8192u/r819xU_cmdpkt.h | 4 ++--
 drivers/staging/rtl8192u/r819xU_phy.h    | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/rtl8192u/r819xU_HTType.h b/drivers/staging/rtl8192u/r819xU_HTType.h
index 19a7bdd1973a..6ec31f2d9a7e 100644
--- a/drivers/staging/rtl8192u/r819xU_HTType.h
+++ b/drivers/staging/rtl8192u/r819xU_HTType.h
@@ -145,7 +145,7 @@ typedef	struct _HT_CAPABILITY_ELE{
 	//Antenna Selection Capabilities
 	u8	ASCap;
 
-}__attribute__((packed)) HT_CAPABILITY_ELE, *PHT_CAPABILITY_ELE;
+}__packed HT_CAPABILITY_ELE, *PHT_CAPABILITY_ELE;
 
 //------------------------------------------------------------
 // The HT Information element is present in beacons
@@ -177,7 +177,7 @@ typedef struct _HT_INFORMATION_ELE{
 	u8	Rsvd4:4;
 
 	u8	BasicMSC[16];
-}__attribute__((packed)) HT_INFORMATION_ELE, *PHT_INFORMATION_ELE;
+}__packed HT_INFORMATION_ELE, *PHT_INFORMATION_ELE;
 
 //
 // MIMO Power Save control field.
diff --git a/drivers/staging/rtl8192u/r819xU_cmdpkt.h b/drivers/staging/rtl8192u/r819xU_cmdpkt.h
index 6f213819a17f..52cd437ef7bb 100644
--- a/drivers/staging/rtl8192u/r819xU_cmdpkt.h
+++ b/drivers/staging/rtl8192u/r819xU_cmdpkt.h
@@ -124,7 +124,7 @@ typedef struct tag_tx_stats_feedback {
 	u16	reserve3_23;
 	u8	reserve3_1;
 	u8	rate;
-} __attribute__((packed)) cmpk_tx_status_t;
+} __packed cmpk_tx_status_t;
 
 /* 6. Debug feedback message. */
 /* Define RX debug message  */
@@ -161,7 +161,7 @@ typedef struct tag_tx_rate_history {
 	 */
 	u16	ht_mcs[4][16];
 
-} __attribute__((packed)) cmpk_tx_rahis_t;
+} __packed cmpk_tx_rahis_t;
 
 typedef enum tag_command_packet_directories {
 	RX_TX_FEEDBACK			= 0,
diff --git a/drivers/staging/rtl8192u/r819xU_phy.h b/drivers/staging/rtl8192u/r819xU_phy.h
index f3c352a10fe0..66cbe3f9cafd 100644
--- a/drivers/staging/rtl8192u/r819xU_phy.h
+++ b/drivers/staging/rtl8192u/r819xU_phy.h
@@ -23,7 +23,7 @@ typedef struct _SwChnlCmd {
 	u32		Para1;
 	u32		Para2;
 	u32		msDelay;
-} __attribute__ ((packed)) SwChnlCmd;
+} __packed SwChnlCmd;
 
 extern u32 rtl819XMACPHY_Array_PG[];
 extern u32 rtl819XPHY_REG_1T2RArray[];
-- 
cgit 


From 5b33b605e2a9df0e80c4536c203eb18b2d71931b Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Thu, 10 Oct 2013 10:43:56 +0300
Subject: staging: rtl8192u: fix space around braces in r819xU_HTType.h

This patch fixes the white space around braces in r819xU_HTType.h according
to the linux kernel coding style.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r819xU_HTType.h | 62 ++++++++++++++++----------------
 1 file changed, 31 insertions(+), 31 deletions(-)

diff --git a/drivers/staging/rtl8192u/r819xU_HTType.h b/drivers/staging/rtl8192u/r819xU_HTType.h
index 6ec31f2d9a7e..2b95f1e53448 100644
--- a/drivers/staging/rtl8192u/r819xU_HTType.h
+++ b/drivers/staging/rtl8192u/r819xU_HTType.h
@@ -36,7 +36,7 @@
 #define HT_SUPPORTED_MCS_1SS_2SS_BITMAP			HT_MCS_1SS_BITMAP|HT_MCS_1SS_2SS_BITMAP
 
 
-typedef enum _HT_MCS_RATE{
+typedef enum _HT_MCS_RATE {
 	HT_MCS0   = 0x00000001,
 	HT_MCS1   = 0x00000002,
 	HT_MCS2   = 0x00000004,
@@ -54,28 +54,28 @@ typedef enum _HT_MCS_RATE{
 	HT_MCS14 = 0x00004000,
 	HT_MCS15 = 0x00008000,
 	// Do not define MCS32 here although 8190 support MCS32
-}HT_MCS_RATE,*PHT_MCS_RATE;
+} HT_MCS_RATE,*PHT_MCS_RATE;
 
 //
 // Represent Channel Width in HT Capabilities
 //
-typedef enum _HT_CHANNEL_WIDTH{
+typedef enum _HT_CHANNEL_WIDTH {
 	HT_CHANNEL_WIDTH_20 = 0,
 	HT_CHANNEL_WIDTH_20_40 = 1,
-}HT_CHANNEL_WIDTH, *PHT_CHANNEL_WIDTH;
+} HT_CHANNEL_WIDTH, *PHT_CHANNEL_WIDTH;
 
 //
 // Represent Extension Channel Offset in HT Capabilities
 // This is available only in 40Mhz mode.
 //
-typedef enum _HT_EXTCHNL_OFFSET{
+typedef enum _HT_EXTCHNL_OFFSET {
 	HT_EXTCHNL_OFFSET_NO_EXT = 0,
 	HT_EXTCHNL_OFFSET_UPPER = 1,
 	HT_EXTCHNL_OFFSET_NO_DEF = 2,
 	HT_EXTCHNL_OFFSET_LOWER = 3,
-}HT_EXTCHNL_OFFSET, *PHT_EXTCHNL_OFFSET;
+} HT_EXTCHNL_OFFSET, *PHT_EXTCHNL_OFFSET;
 
-typedef enum _CHNLOP{
+typedef enum _CHNLOP {
 	CHNLOP_NONE = 0, // No Action now
 	CHNLOP_SCAN = 1, // Scan in progress
 	CHNLOP_SWBW = 2, // Bandwidth switching in progress
@@ -87,7 +87,7 @@ typedef enum _CHNLOP{
 		((_pHTInfo)->ChnlOp > CHNLOP_NONE) ? TRUE : FALSE
 
 
-typedef enum _HT_ACTION{
+typedef enum _HT_ACTION {
 	ACT_RECOMMAND_WIDTH		= 0,
 	ACT_MIMO_PWR_SAVE		= 1,
 	ACT_PSMP					= 2,
@@ -102,14 +102,14 @@ typedef enum _HT_ACTION{
 
 
 /* 2007/06/07 MH Define sub-carrier mode for 40MHZ. */
-typedef enum _HT_Bandwidth_40MHZ_Sub_Carrier{
+typedef enum _HT_Bandwidth_40MHZ_Sub_Carrier {
 	SC_MODE_DUPLICATE = 0,
 	SC_MODE_LOWER = 1,
 	SC_MODE_UPPER = 2,
 	SC_MODE_FULL40MHZ = 3,
-}HT_BW40_SC_E;
+} HT_BW40_SC_E;
 
-typedef	struct _HT_CAPABILITY_ELE{
+typedef	struct _HT_CAPABILITY_ELE {
 
 	//HT capability info
 	u8	AdvCoding:1;
@@ -145,14 +145,14 @@ typedef	struct _HT_CAPABILITY_ELE{
 	//Antenna Selection Capabilities
 	u8	ASCap;
 
-}__packed HT_CAPABILITY_ELE, *PHT_CAPABILITY_ELE;
+} __packed HT_CAPABILITY_ELE, *PHT_CAPABILITY_ELE;
 
 //------------------------------------------------------------
 // The HT Information element is present in beacons
 // Only AP is required to include this element
 //------------------------------------------------------------
 
-typedef struct _HT_INFORMATION_ELE{
+typedef struct _HT_INFORMATION_ELE {
 	u8	ControlChl;
 
 	u8	ExtChlOffset:2;
@@ -177,28 +177,28 @@ typedef struct _HT_INFORMATION_ELE{
 	u8	Rsvd4:4;
 
 	u8	BasicMSC[16];
-}__packed HT_INFORMATION_ELE, *PHT_INFORMATION_ELE;
+} __packed HT_INFORMATION_ELE, *PHT_INFORMATION_ELE;
 
 //
 // MIMO Power Save control field.
 // This is appear in MIMO Power Save Action Frame
 //
-typedef struct _MIMOPS_CTRL{
+typedef struct _MIMOPS_CTRL {
 	u8	MimoPsEnable:1;
 	u8	MimoPsMode:1;
 	u8	Reserved:6;
 } MIMOPS_CTRL, *PMIMOPS_CTRL;
 
-typedef enum _HT_SPEC_VER{
+typedef enum _HT_SPEC_VER {
 	HT_SPEC_VER_IEEE = 0,
 	HT_SPEC_VER_EWC = 1,
-}HT_SPEC_VER, *PHT_SPEC_VER;
+} HT_SPEC_VER, *PHT_SPEC_VER;
 
-typedef enum _HT_AGGRE_MODE_E{
+typedef enum _HT_AGGRE_MODE_E {
 	HT_AGG_AUTO = 0,
 	HT_AGG_FORCE_ENABLE = 1,
 	HT_AGG_FORCE_DISABLE = 2,
-}HT_AGGRE_MODE_E, *PHT_AGGRE_MODE_E;
+} HT_AGGRE_MODE_E, *PHT_AGGRE_MODE_E;
 
 //------------------------------------------------------------
 //  The Data structure is used to keep HT related variables when card is
@@ -206,7 +206,7 @@ typedef enum _HT_AGGRE_MODE_E{
 //	to default value in HTInitializeHTInfo()
 //------------------------------------------------------------
 
-typedef struct _RT_HIGH_THROUGHPUT{
+typedef struct _RT_HIGH_THROUGHPUT {
 //	DECLARE_RT_OBJECT(_RT_HIGH_THROUGHPUT);
 	u8				bEnableHT;
 	u8				bCurrentHTSupport;
@@ -308,7 +308,7 @@ typedef struct _RT_HIGH_THROUGHPUT{
 
 	// For IOT issue.
 	u32					IOTAction;
-}RT_HIGH_THROUGHPUT, *PRT_HIGH_THROUGHPUT;
+} RT_HIGH_THROUGHPUT, *PRT_HIGH_THROUGHPUT;
 
 
 //------------------------------------------------------------
@@ -316,7 +316,7 @@ typedef struct _RT_HIGH_THROUGHPUT{
 // when card is configured as "AP mode"
 //------------------------------------------------------------
 
-typedef struct _RT_HTINFO_STA_ENTRY{
+typedef struct _RT_HTINFO_STA_ENTRY {
 	u8			bEnableHT;
 
 	u8			bSupportCck;
@@ -335,7 +335,7 @@ typedef struct _RT_HTINFO_STA_ENTRY{
 	u8			McsRateSet[16];
 
 
-}RT_HTINFO_STA_ENTRY, *PRT_HTINFO_STA_ENTRY;
+} RT_HTINFO_STA_ENTRY, *PRT_HTINFO_STA_ENTRY;
 
 
 
@@ -346,7 +346,7 @@ typedef struct _RT_HTINFO_STA_ENTRY{
 // when card is configured as "STA mode"
 //------------------------------------------------------------
 
-typedef struct _BSS_HT{
+typedef struct _BSS_HT {
 
 	u8				bdSupportHT;
 
@@ -362,28 +362,28 @@ typedef struct _BSS_HT{
 
 	u8					bdRT2RTAggregation;
 	u8					bdRT2RTLongSlotTime;
-}BSS_HT, *PBSS_HT;
+} BSS_HT, *PBSS_HT;
 
-typedef struct _MIMO_RSSI{
+typedef struct _MIMO_RSSI {
 	u32	EnableAntenna;
 	u32	AntennaA;
 	u32	AntennaB;
 	u32	AntennaC;
 	u32	AntennaD;
 	u32	Average;
-}MIMO_RSSI, *PMIMO_RSSI;
+} MIMO_RSSI, *PMIMO_RSSI;
 
-typedef struct _MIMO_EVM{
+typedef struct _MIMO_EVM {
 	u32	EVM1;
 	u32    EVM2;
-}MIMO_EVM, *PMIMO_EVM;
+} MIMO_EVM, *PMIMO_EVM;
 
-typedef struct _FALSE_ALARM_STATISTICS{
+typedef struct _FALSE_ALARM_STATISTICS {
 	u32	Cnt_Parity_Fail;
 	u32    Cnt_Rate_Illegal;
 	u32	Cnt_Crc8_fail;
 	u32	Cnt_all;
-}FALSE_ALARM_STATISTICS, *PFALSE_ALARM_STATISTICS;
+} FALSE_ALARM_STATISTICS, *PFALSE_ALARM_STATISTICS;
 
 
 
-- 
cgit 


From 3652701608e0f47d1dd9eba80c4fc1912902a781 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Thu, 10 Oct 2013 10:43:57 +0300
Subject: staging: rtl8192u: fix comments in r819xU_HTType.h

This patch fixes comments in r819xU_HTType.h by:
* replacing // commments with /* */ comments
* removing author and date information from comments
* removing unnecessary comments

This is done to improve code readability.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r819xU_HTType.h | 194 +++++++++++++++----------------
 1 file changed, 91 insertions(+), 103 deletions(-)

diff --git a/drivers/staging/rtl8192u/r819xU_HTType.h b/drivers/staging/rtl8192u/r819xU_HTType.h
index 2b95f1e53448..60e8e1b9ebd8 100644
--- a/drivers/staging/rtl8192u/r819xU_HTType.h
+++ b/drivers/staging/rtl8192u/r819xU_HTType.h
@@ -2,31 +2,25 @@
 #define _R819XU_HTTYPE_H_
 
 
-//------------------------------------------------------------
-// The HT Capability element is present in beacons, association request,
-//	reassociation request and probe response frames
-//------------------------------------------------------------
-
-//
-// Operation mode value
-//
+/*----------------------------------------------------------------------
+ * The HT Capability element is present in beacons, association request,
+ * reassociation request and probe response frames
+ *----------------------------------------------------------------------*/
+
+/* Operation mode value */
 #define HT_OPMODE_NO_PROTECT		0
 #define HT_OPMODE_OPTIONAL		1
 #define HT_OPMODE_40MHZ_PROTECT	2
 #define HT_OPMODE_MIXED			3
 
-//
-// MIMO Power Save Settings
-//
+/* MIMO Power Save Settings */
 #define MIMO_PS_STATIC				0
 #define MIMO_PS_DYNAMIC			1
 #define MIMO_PS_NOLIMIT			3
 
 
-//
-//	There should be 128 bits to cover all of the MCS rates. However, since
-//	8190 does not support too much rates, one integer is quite enough.
-//
+/* There should be 128 bits to cover all of the MCS rates. However, since
+ * 8190 does not support too much rates, one integer is quite enough. */
 
 #define sHTCLng	4
 
@@ -53,21 +47,17 @@ typedef enum _HT_MCS_RATE {
 	HT_MCS13 = 0x00002000,
 	HT_MCS14 = 0x00004000,
 	HT_MCS15 = 0x00008000,
-	// Do not define MCS32 here although 8190 support MCS32
+	/* Do not define MCS32 here although 8190 support MCS32 */
 } HT_MCS_RATE,*PHT_MCS_RATE;
 
-//
-// Represent Channel Width in HT Capabilities
-//
+/* Represent Channel Width in HT Capabilities */
 typedef enum _HT_CHANNEL_WIDTH {
 	HT_CHANNEL_WIDTH_20 = 0,
 	HT_CHANNEL_WIDTH_20_40 = 1,
 } HT_CHANNEL_WIDTH, *PHT_CHANNEL_WIDTH;
 
-//
-// Represent Extension Channel Offset in HT Capabilities
-// This is available only in 40Mhz mode.
-//
+/* Represent Extension Channel Offset in HT Capabilities
+ * This is available only in 40Mhz mode. */
 typedef enum _HT_EXTCHNL_OFFSET {
 	HT_EXTCHNL_OFFSET_NO_EXT = 0,
 	HT_EXTCHNL_OFFSET_UPPER = 1,
@@ -76,13 +66,13 @@ typedef enum _HT_EXTCHNL_OFFSET {
 } HT_EXTCHNL_OFFSET, *PHT_EXTCHNL_OFFSET;
 
 typedef enum _CHNLOP {
-	CHNLOP_NONE = 0, // No Action now
-	CHNLOP_SCAN = 1, // Scan in progress
-	CHNLOP_SWBW = 2, // Bandwidth switching in progress
-	CHNLOP_SWCHNL = 3, // Software Channel switching in progress
+	CHNLOP_NONE = 0,	/* No Action now */
+	CHNLOP_SCAN = 1,	/* Scan in progress */
+	CHNLOP_SWBW = 2,	/* Bandwidth switching in progress */
+	CHNLOP_SWCHNL = 3,	/* Software Channel switching in progress */
 } CHNLOP, *PCHNLOP;
 
-// Determine if the Channel Operation is in progress
+/* Determine if the Channel Operation is in progress */
 #define CHHLOP_IN_PROGRESS(_pHTInfo)	\
 		((_pHTInfo)->ChnlOp > CHNLOP_NONE) ? TRUE : FALSE
 
@@ -101,7 +91,7 @@ typedef enum _HT_ACTION {
 } HT_ACTION, *PHT_ACTION;
 
 
-/* 2007/06/07 MH Define sub-carrier mode for 40MHZ. */
+/* Define sub-carrier mode for 40MHZ. */
 typedef enum _HT_Bandwidth_40MHZ_Sub_Carrier {
 	SC_MODE_DUPLICATE = 0,
 	SC_MODE_LOWER = 1,
@@ -111,7 +101,7 @@ typedef enum _HT_Bandwidth_40MHZ_Sub_Carrier {
 
 typedef	struct _HT_CAPABILITY_ELE {
 
-	//HT capability info
+	/* HT capability info */
 	u8	AdvCoding:1;
 	u8	ChlWidth:1;
 	u8	MimoPwrSave:2;
@@ -127,30 +117,30 @@ typedef	struct _HT_CAPABILITY_ELE {
 	u8	Rsvd1:1;
 	u8	LSigTxopProtect:1;
 
-	//MAC HT parameters info
+	/* MAC HT parameters info */
 	u8	MaxRxAMPDUFactor:2;
 	u8	MPDUDensity:3;
 	u8	Rsvd2:3;
 
-	//Supported MCS set
+	/* Supported MCS set */
 	u8	MCS[16];
 
 
-	//Extended HT Capability Info
+	/* Extended HT Capability Info */
 	u16	ExtHTCapInfo;
 
-	//TXBF Capabilities
+	/* TXBF Capabilities */
 	u8	TxBFCap[4];
 
-	//Antenna Selection Capabilities
+	/* Antenna Selection Capabilities */
 	u8	ASCap;
 
 } __packed HT_CAPABILITY_ELE, *PHT_CAPABILITY_ELE;
 
-//------------------------------------------------------------
-// The HT Information element is present in beacons
-// Only AP is required to include this element
-//------------------------------------------------------------
+/*------------------------------------------------------------
+ * The HT Information element is present in beacons
+ * Only AP is required to include this element
+ *------------------------------------------------------------*/
 
 typedef struct _HT_INFORMATION_ELE {
 	u8	ControlChl;
@@ -179,10 +169,8 @@ typedef struct _HT_INFORMATION_ELE {
 	u8	BasicMSC[16];
 } __packed HT_INFORMATION_ELE, *PHT_INFORMATION_ELE;
 
-//
-// MIMO Power Save control field.
-// This is appear in MIMO Power Save Action Frame
-//
+/* MIMO Power Save control field.
+ * This is appear in MIMO Power Save Action Frame */
 typedef struct _MIMOPS_CTRL {
 	u8	MimoPsEnable:1;
 	u8	MimoPsMode:1;
@@ -200,63 +188,66 @@ typedef enum _HT_AGGRE_MODE_E {
 	HT_AGG_FORCE_DISABLE = 2,
 } HT_AGGRE_MODE_E, *PHT_AGGRE_MODE_E;
 
-//------------------------------------------------------------
-//  The Data structure is used to keep HT related variables when card is
-//  configured as non-AP STA mode.  **Note**  Current_xxx should be set
-//	to default value in HTInitializeHTInfo()
-//------------------------------------------------------------
+/*----------------------------------------------------------------------------
+ *  The Data structure is used to keep HT related variables when card is
+ *  configured as non-AP STA mode.
+ *  **Note** Current_xxx should be set to default value in HTInitializeHTInfo()
+ *----------------------------------------------------------------------------*/
 
 typedef struct _RT_HIGH_THROUGHPUT {
-//	DECLARE_RT_OBJECT(_RT_HIGH_THROUGHPUT);
 	u8				bEnableHT;
 	u8				bCurrentHTSupport;
-
-	u8				bRegBW40MHz;				// Tx 40MHz channel capability
-	u8				bCurBW40MHz;				// Tx 40MHz channel capability
-
-	u8				bRegShortGI40MHz;			// Tx Short GI for 40Mhz
-	u8				bCurShortGI40MHz;			// Tx Short GI for 40MHz
-
-	u8				bRegShortGI20MHz;			// Tx Short GI for 20MHz
-	u8				bCurShortGI20MHz;			// Tx Short GI for 20MHz
-
-	u8				bRegSuppCCK;				// Tx CCK rate capability
-	u8				bCurSuppCCK;				// Tx CCK rate capability
-
-	// 802.11n spec version for "peer"
+	/* Tx 40MHz channel capability */
+	u8				bRegBW40MHz;
+	u8				bCurBW40MHz;
+	/* Tx Short GI for 40Mhz */
+	u8				bRegShortGI40MHz;
+	u8				bCurShortGI40MHz;
+	/* Tx Short GI for 20MHz */
+	u8				bRegShortGI20MHz;
+	u8				bCurShortGI20MHz;
+	/* Tx CCK rate capability */
+	u8				bRegSuppCCK;
+	u8				bCurSuppCCK;
+
+	/* 802.11n spec version for "peer" */
 	HT_SPEC_VER			ePeerHTSpecVer;
 
 
-	// HT related information for "Self"
-	HT_CAPABILITY_ELE	SelfHTCap;					// This is HT cap element sent to peer STA, which also indicate HT Rx capabilities.
-	HT_INFORMATION_ELE	SelfHTInfo;					// This is HT info element sent to peer STA, which also indicate HT Rx capabilities.
+	/* HT related information for "Self" */
+	/* This is HT cap element sent to peer STA, which also indicate
+	 * HT Rx capabilities. */
+	HT_CAPABILITY_ELE	SelfHTCap;
+	HT_INFORMATION_ELE	SelfHTInfo;
 
-	// HT related information for "Peer"
+	/* HT related information for "Peer" */
 	u8				PeerHTCapBuf[32];
 	u8				PeerHTInfoBuf[32];
 
 
-	// A-MSDU related
-	u8				bAMSDU_Support;			// This indicates Tx A-MSDU capability
-	u16				nAMSDU_MaxSize;			// This indicates Tx A-MSDU capability
-	u8				bCurrent_AMSDU_Support;	// This indicates Tx A-MSDU capability
-	u16				nCurrent_AMSDU_MaxSize;	// This indicates Tx A-MSDU capability
+	/* A-MSDU related */
+	/* This indicates Tx A-MSDU capability */
+	u8				bAMSDU_Support;
+	u16				nAMSDU_MaxSize;
+	u8				bCurrent_AMSDU_Support;
+	u16				nCurrent_AMSDU_MaxSize;
 
 
-	// AMPDU  related <2006.08.10 Emily>
-	u8				bAMPDUEnable;				// This indicate Tx A-MPDU capability
-	u8				bCurrentAMPDUEnable;		// This indicate Tx A-MPDU capability
-	u8				AMPDU_Factor;				// This indicate Tx A-MPDU capability
-	u8				CurrentAMPDUFactor;		// This indicate Tx A-MPDU capability
-	u8				MPDU_Density;				// This indicate Tx A-MPDU capability
-	u8				CurrentMPDUDensity;			// This indicate Tx A-MPDU capability
+	/* A-MPDU related */
+	/* This indicate Tx A-MPDU capability */
+	u8				bAMPDUEnable;
+	u8				bCurrentAMPDUEnable;
+	u8				AMPDU_Factor;
+	u8				CurrentAMPDUFactor;
+	u8				MPDU_Density;
+	u8				CurrentMPDUDensity;
 
-	// Forced A-MPDU enable
+	/* Forced A-MPDU enable */
 	HT_AGGRE_MODE_E	ForcedAMPDUMode;
 	u8				ForcedAMPDUFactor;
 	u8				ForcedMPDUDensity;
 
-	// Forced A-MSDU enable
+	/* Forced A-MSDU enable */
 	HT_AGGRE_MODE_E	ForcedAMSDUMode;
 	u16				ForcedAMSDUMaxSize;
 
@@ -264,29 +255,28 @@ typedef struct _RT_HIGH_THROUGHPUT {
 
 	u8				CurrentOpMode;
 
-	// MIMO PS related
+	/* MIMO PS related */
 	u8				SelfMimoPs;
 	u8				PeerMimoPs;
 
-	// 40MHz Channel Offset settings.
+	/* 40MHz Channel Offset settings. */
 	HT_EXTCHNL_OFFSET	CurSTAExtChnlOffset;
-	u8				bCurTxBW40MHz;	// If we use 40 MHz to Tx
+	u8				bCurTxBW40MHz;	/* If we use 40 MHz to Tx */
 	u8				PeerBandwidth;
 
-	// For Bandwidth Switching
+	/* For Bandwidth Switching */
 	u8				bSwBwInProgress;
-	CHNLOP				ChnlOp; // software switching channel in progress. By Bruce, 2008-02-15.
+	CHNLOP				ChnlOp; /* software switching channel in progress. */
 	u8				SwBwStep;
-	//RT_TIMER			SwBwTimer;
 	struct timer_list		SwBwTimer;
 
-	// For Realtek proprietary A-MPDU factor for aggregation
+	/* For Realtek proprietary A-MPDU factor for aggregation */
 	u8				bRegRT2RTAggregation;
 	u8				bCurrentRT2RTAggregation;
 	u8				bCurrentRT2RTLongSlotTime;
 	u8				szRT2RTAggBuffer[10];
 
-	// Rx Reorder control
+	/* Rx Reorder control */
 	u8				bRegRxReorderEnable;
 	u8				bCurRxReorderEnable;
 	u8				RxReorderWinSize;
@@ -303,18 +293,18 @@ typedef struct _RT_HIGH_THROUGHPUT {
 	u8				UsbRxFwAggrTimeout;
 #endif
 
-	// Add for Broadcom(Linksys) IOT. Joseph
+	/* Add for Broadcom(Linksys) IOT. */
 	u8				bIsPeerBcm;
 
-	// For IOT issue.
+	/* For IOT issue. */
 	u32					IOTAction;
 } RT_HIGH_THROUGHPUT, *PRT_HIGH_THROUGHPUT;
 
 
-//------------------------------------------------------------
-// The Data structure is used to keep HT related variable for "each Sta"
-// when card is configured as "AP mode"
-//------------------------------------------------------------
+/*----------------------------------------------------------------------
+ * The Data structure is used to keep HT related variable for "each Sta"
+ * when card is configured as "AP mode"
+ *----------------------------------------------------------------------*/
 
 typedef struct _RT_HTINFO_STA_ENTRY {
 	u8			bEnableHT;
@@ -341,24 +331,22 @@ typedef struct _RT_HTINFO_STA_ENTRY {
 
 
 
-//------------------------------------------------------------
-// The Data structure is used to keep HT related variable for "each AP"
-// when card is configured as "STA mode"
-//------------------------------------------------------------
+/*---------------------------------------------------------------------
+ * The Data structure is used to keep HT related variable for "each AP"
+ * when card is configured as "STA mode"
+ *---------------------------------------------------------------------*/
 
 typedef struct _BSS_HT {
 
 	u8				bdSupportHT;
 
-	// HT related elements
+	/* HT related elements */
 	u8					bdHTCapBuf[32];
 	u16					bdHTCapLen;
 	u8					bdHTInfoBuf[32];
 	u16					bdHTInfoLen;
 
 	HT_SPEC_VER				bdHTSpecVer;
-	//HT_CAPABILITY_ELE			bdHTCapEle;
-	//HT_INFORMATION_ELE		bdHTInfoEle;
 
 	u8					bdRT2RTAggregation;
 	u8					bdRT2RTLongSlotTime;
@@ -387,4 +375,4 @@ typedef struct _FALSE_ALARM_STATISTICS {
 
 
 
-#endif //__INC_HTTYPE_H
+#endif
-- 
cgit 


From 1f7750343db115cc2a15024ceb7f86c621b3fb77 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Thu, 10 Oct 2013 10:43:58 +0300
Subject: staging: rtl8192u: fix alignment in r819xU_HTType.h

This patch fixes some alignment issues in r819xU_HTType.h to impreove code
readability.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r819xU_HTType.h | 174 +++++++++++++++----------------
 1 file changed, 87 insertions(+), 87 deletions(-)

diff --git a/drivers/staging/rtl8192u/r819xU_HTType.h b/drivers/staging/rtl8192u/r819xU_HTType.h
index 60e8e1b9ebd8..a99e3c764f5d 100644
--- a/drivers/staging/rtl8192u/r819xU_HTType.h
+++ b/drivers/staging/rtl8192u/r819xU_HTType.h
@@ -10,11 +10,11 @@
 /* Operation mode value */
 #define HT_OPMODE_NO_PROTECT		0
 #define HT_OPMODE_OPTIONAL		1
-#define HT_OPMODE_40MHZ_PROTECT	2
+#define HT_OPMODE_40MHZ_PROTECT		2
 #define HT_OPMODE_MIXED			3
 
 /* MIMO Power Save Settings */
-#define MIMO_PS_STATIC				0
+#define MIMO_PS_STATIC			0
 #define MIMO_PS_DYNAMIC			1
 #define MIMO_PS_NOLIMIT			3
 
@@ -22,12 +22,12 @@
 /* There should be 128 bits to cover all of the MCS rates. However, since
  * 8190 does not support too much rates, one integer is quite enough. */
 
-#define sHTCLng	4
+#define sHTCLng				4
 
 
-#define HT_SUPPORTED_MCS_1SS_BITMAP					0x000000ff
-#define HT_SUPPORTED_MCS_2SS_BITMAP					0x0000ff00
-#define HT_SUPPORTED_MCS_1SS_2SS_BITMAP			HT_MCS_1SS_BITMAP|HT_MCS_1SS_2SS_BITMAP
+#define HT_SUPPORTED_MCS_1SS_BITMAP	0x000000ff
+#define HT_SUPPORTED_MCS_2SS_BITMAP	0x0000ff00
+#define HT_SUPPORTED_MCS_1SS_2SS_BITMAP	HT_MCS_1SS_BITMAP|HT_MCS_1SS_2SS_BITMAP
 
 
 typedef enum _HT_MCS_RATE {
@@ -41,18 +41,18 @@ typedef enum _HT_MCS_RATE {
 	HT_MCS7   = 0x00000080,
 	HT_MCS8   = 0x00000100,
 	HT_MCS9   = 0x00000200,
-	HT_MCS10 = 0x00000400,
-	HT_MCS11 = 0x00000800,
-	HT_MCS12 = 0x00001000,
-	HT_MCS13 = 0x00002000,
-	HT_MCS14 = 0x00004000,
-	HT_MCS15 = 0x00008000,
+	HT_MCS10  = 0x00000400,
+	HT_MCS11  = 0x00000800,
+	HT_MCS12  = 0x00001000,
+	HT_MCS13  = 0x00002000,
+	HT_MCS14  = 0x00004000,
+	HT_MCS15  = 0x00008000,
 	/* Do not define MCS32 here although 8190 support MCS32 */
 } HT_MCS_RATE,*PHT_MCS_RATE;
 
 /* Represent Channel Width in HT Capabilities */
 typedef enum _HT_CHANNEL_WIDTH {
-	HT_CHANNEL_WIDTH_20 = 0,
+	HT_CHANNEL_WIDTH_20    = 0,
 	HT_CHANNEL_WIDTH_20_40 = 1,
 } HT_CHANNEL_WIDTH, *PHT_CHANNEL_WIDTH;
 
@@ -60,15 +60,15 @@ typedef enum _HT_CHANNEL_WIDTH {
  * This is available only in 40Mhz mode. */
 typedef enum _HT_EXTCHNL_OFFSET {
 	HT_EXTCHNL_OFFSET_NO_EXT = 0,
-	HT_EXTCHNL_OFFSET_UPPER = 1,
+	HT_EXTCHNL_OFFSET_UPPER  = 1,
 	HT_EXTCHNL_OFFSET_NO_DEF = 2,
-	HT_EXTCHNL_OFFSET_LOWER = 3,
+	HT_EXTCHNL_OFFSET_LOWER  = 3,
 } HT_EXTCHNL_OFFSET, *PHT_EXTCHNL_OFFSET;
 
 typedef enum _CHNLOP {
-	CHNLOP_NONE = 0,	/* No Action now */
-	CHNLOP_SCAN = 1,	/* Scan in progress */
-	CHNLOP_SWBW = 2,	/* Bandwidth switching in progress */
+	CHNLOP_NONE   = 0,	/* No Action now */
+	CHNLOP_SCAN   = 1,	/* Scan in progress */
+	CHNLOP_SWBW   = 2,	/* Bandwidth switching in progress */
 	CHNLOP_SWCHNL = 3,	/* Software Channel switching in progress */
 } CHNLOP, *PCHNLOP;
 
@@ -80,12 +80,12 @@ typedef enum _CHNLOP {
 typedef enum _HT_ACTION {
 	ACT_RECOMMAND_WIDTH		= 0,
 	ACT_MIMO_PWR_SAVE		= 1,
-	ACT_PSMP					= 2,
+	ACT_PSMP			= 2,
 	ACT_SET_PCO_PHASE		= 3,
-	ACT_MIMO_CHL_MEASURE	= 4,
-	ACT_RECIPROCITY_CORRECT	= 5,
+	ACT_MIMO_CHL_MEASURE		= 4,
+	ACT_RECIPROCITY_CORRECT		= 5,
 	ACT_MIMO_CSI_MATRICS		= 6,
-	ACT_MIMO_NOCOMPR_STEER	= 7,
+	ACT_MIMO_NOCOMPR_STEER		= 7,
 	ACT_MIMO_COMPR_STEER		= 8,
 	ACT_ANTENNA_SELECT		= 9,
 } HT_ACTION, *PHT_ACTION;
@@ -94,8 +94,8 @@ typedef enum _HT_ACTION {
 /* Define sub-carrier mode for 40MHZ. */
 typedef enum _HT_Bandwidth_40MHZ_Sub_Carrier {
 	SC_MODE_DUPLICATE = 0,
-	SC_MODE_LOWER = 1,
-	SC_MODE_UPPER = 2,
+	SC_MODE_LOWER     = 1,
+	SC_MODE_UPPER     = 2,
 	SC_MODE_FULL40MHZ = 3,
 } HT_BW40_SC_E;
 
@@ -195,23 +195,23 @@ typedef enum _HT_AGGRE_MODE_E {
  *----------------------------------------------------------------------------*/
 
 typedef struct _RT_HIGH_THROUGHPUT {
-	u8				bEnableHT;
-	u8				bCurrentHTSupport;
+	u8			bEnableHT;
+	u8			bCurrentHTSupport;
 	/* Tx 40MHz channel capability */
-	u8				bRegBW40MHz;
-	u8				bCurBW40MHz;
+	u8			bRegBW40MHz;
+	u8			bCurBW40MHz;
 	/* Tx Short GI for 40Mhz */
-	u8				bRegShortGI40MHz;
-	u8				bCurShortGI40MHz;
+	u8			bRegShortGI40MHz;
+	u8			bCurShortGI40MHz;
 	/* Tx Short GI for 20MHz */
-	u8				bRegShortGI20MHz;
-	u8				bCurShortGI20MHz;
+	u8			bRegShortGI20MHz;
+	u8			bCurShortGI20MHz;
 	/* Tx CCK rate capability */
-	u8				bRegSuppCCK;
-	u8				bCurSuppCCK;
+	u8			bRegSuppCCK;
+	u8			bCurSuppCCK;
 
 	/* 802.11n spec version for "peer" */
-	HT_SPEC_VER			ePeerHTSpecVer;
+	HT_SPEC_VER		ePeerHTSpecVer;
 
 
 	/* HT related information for "Self" */
@@ -221,83 +221,83 @@ typedef struct _RT_HIGH_THROUGHPUT {
 	HT_INFORMATION_ELE	SelfHTInfo;
 
 	/* HT related information for "Peer" */
-	u8				PeerHTCapBuf[32];
-	u8				PeerHTInfoBuf[32];
+	u8			PeerHTCapBuf[32];
+	u8			PeerHTInfoBuf[32];
 
 
 	/* A-MSDU related */
 	/* This indicates Tx A-MSDU capability */
-	u8				bAMSDU_Support;
-	u16				nAMSDU_MaxSize;
-	u8				bCurrent_AMSDU_Support;
-	u16				nCurrent_AMSDU_MaxSize;
+	u8			bAMSDU_Support;
+	u16			nAMSDU_MaxSize;
+	u8			bCurrent_AMSDU_Support;
+	u16			nCurrent_AMSDU_MaxSize;
 
 
 	/* A-MPDU related */
 	/* This indicate Tx A-MPDU capability */
-	u8				bAMPDUEnable;
-	u8				bCurrentAMPDUEnable;
-	u8				AMPDU_Factor;
-	u8				CurrentAMPDUFactor;
-	u8				MPDU_Density;
-	u8				CurrentMPDUDensity;
+	u8			bAMPDUEnable;
+	u8			bCurrentAMPDUEnable;
+	u8			AMPDU_Factor;
+	u8			CurrentAMPDUFactor;
+	u8			MPDU_Density;
+	u8			CurrentMPDUDensity;
 
 	/* Forced A-MPDU enable */
-	HT_AGGRE_MODE_E	ForcedAMPDUMode;
-	u8				ForcedAMPDUFactor;
-	u8				ForcedMPDUDensity;
+	HT_AGGRE_MODE_E		ForcedAMPDUMode;
+	u8			ForcedAMPDUFactor;
+	u8			ForcedMPDUDensity;
 
 	/* Forced A-MSDU enable */
-	HT_AGGRE_MODE_E	ForcedAMSDUMode;
-	u16				ForcedAMSDUMaxSize;
+	HT_AGGRE_MODE_E		ForcedAMSDUMode;
+	u16			ForcedAMSDUMaxSize;
 
-	u8				bForcedShortGI;
+	u8			bForcedShortGI;
 
-	u8				CurrentOpMode;
+	u8			CurrentOpMode;
 
 	/* MIMO PS related */
-	u8				SelfMimoPs;
-	u8				PeerMimoPs;
+	u8			SelfMimoPs;
+	u8			PeerMimoPs;
 
 	/* 40MHz Channel Offset settings. */
 	HT_EXTCHNL_OFFSET	CurSTAExtChnlOffset;
-	u8				bCurTxBW40MHz;	/* If we use 40 MHz to Tx */
-	u8				PeerBandwidth;
+	u8			bCurTxBW40MHz;	/* If we use 40 MHz to Tx */
+	u8			PeerBandwidth;
 
 	/* For Bandwidth Switching */
-	u8				bSwBwInProgress;
-	CHNLOP				ChnlOp; /* software switching channel in progress. */
-	u8				SwBwStep;
-	struct timer_list		SwBwTimer;
+	u8			bSwBwInProgress;
+	CHNLOP			ChnlOp; /* software switching channel in progress. */
+	u8			SwBwStep;
+	struct timer_list	SwBwTimer;
 
 	/* For Realtek proprietary A-MPDU factor for aggregation */
-	u8				bRegRT2RTAggregation;
-	u8				bCurrentRT2RTAggregation;
-	u8				bCurrentRT2RTLongSlotTime;
-	u8				szRT2RTAggBuffer[10];
+	u8			bRegRT2RTAggregation;
+	u8			bCurrentRT2RTAggregation;
+	u8			bCurrentRT2RTLongSlotTime;
+	u8			szRT2RTAggBuffer[10];
 
 	/* Rx Reorder control */
-	u8				bRegRxReorderEnable;
-	u8				bCurRxReorderEnable;
-	u8				RxReorderWinSize;
-	u8				RxReorderPendingTime;
-	u16				RxReorderDropCounter;
+	u8			bRegRxReorderEnable;
+	u8			bCurRxReorderEnable;
+	u8			RxReorderWinSize;
+	u8			RxReorderPendingTime;
+	u16			RxReorderDropCounter;
 
 #ifdef USB_TX_DRIVER_AGGREGATION_ENABLE
-	u8				UsbTxAggrNum;
+	u8			UsbTxAggrNum;
 #endif
 #ifdef USB_RX_AGGREGATION_SUPPORT
-	u8				UsbRxFwAggrEn;
-	u8				UsbRxFwAggrPageNum;
-	u8				UsbRxFwAggrPacketNum;
-	u8				UsbRxFwAggrTimeout;
+	u8			UsbRxFwAggrEn;
+	u8			UsbRxFwAggrPageNum;
+	u8			UsbRxFwAggrPacketNum;
+	u8			UsbRxFwAggrTimeout;
 #endif
 
 	/* Add for Broadcom(Linksys) IOT. */
-	u8				bIsPeerBcm;
+	u8			bIsPeerBcm;
 
 	/* For IOT issue. */
-	u32					IOTAction;
+	u32			IOTAction;
 } RT_HIGH_THROUGHPUT, *PRT_HIGH_THROUGHPUT;
 
 
@@ -341,15 +341,15 @@ typedef struct _BSS_HT {
 	u8				bdSupportHT;
 
 	/* HT related elements */
-	u8					bdHTCapBuf[32];
-	u16					bdHTCapLen;
-	u8					bdHTInfoBuf[32];
-	u16					bdHTInfoLen;
+	u8				bdHTCapBuf[32];
+	u16				bdHTCapLen;
+	u8				bdHTInfoBuf[32];
+	u16				bdHTInfoLen;
 
-	HT_SPEC_VER				bdHTSpecVer;
+	HT_SPEC_VER			bdHTSpecVer;
 
-	u8					bdRT2RTAggregation;
-	u8					bdRT2RTLongSlotTime;
+	u8				bdRT2RTAggregation;
+	u8				bdRT2RTLongSlotTime;
 } BSS_HT, *PBSS_HT;
 
 typedef struct _MIMO_RSSI {
@@ -363,12 +363,12 @@ typedef struct _MIMO_RSSI {
 
 typedef struct _MIMO_EVM {
 	u32	EVM1;
-	u32    EVM2;
+	u32	EVM2;
 } MIMO_EVM, *PMIMO_EVM;
 
 typedef struct _FALSE_ALARM_STATISTICS {
 	u32	Cnt_Parity_Fail;
-	u32    Cnt_Rate_Illegal;
+	u32	Cnt_Rate_Illegal;
 	u32	Cnt_Crc8_fail;
 	u32	Cnt_all;
 } FALSE_ALARM_STATISTICS, *PFALSE_ALARM_STATISTICS;
-- 
cgit 


From b3052681e8c060b9765e63a533d65424b58707bc Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Thu, 10 Oct 2013 10:43:59 +0300
Subject: staging: rtl8192u: add space after ',' in r819xU_HTType.h

This patch fixes the following checkpatch error:
ERROR: space required after that ','

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r819xU_HTType.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8192u/r819xU_HTType.h b/drivers/staging/rtl8192u/r819xU_HTType.h
index a99e3c764f5d..c2bc0ff6cb17 100644
--- a/drivers/staging/rtl8192u/r819xU_HTType.h
+++ b/drivers/staging/rtl8192u/r819xU_HTType.h
@@ -48,7 +48,7 @@ typedef enum _HT_MCS_RATE {
 	HT_MCS14  = 0x00004000,
 	HT_MCS15  = 0x00008000,
 	/* Do not define MCS32 here although 8190 support MCS32 */
-} HT_MCS_RATE,*PHT_MCS_RATE;
+} HT_MCS_RATE, *PHT_MCS_RATE;
 
 /* Represent Channel Width in HT Capabilities */
 typedef enum _HT_CHANNEL_WIDTH {
-- 
cgit 


From b812fd3b5793d4199e83b9494ece92e8df8d22c0 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Thu, 10 Oct 2013 10:44:00 +0300
Subject: staging: rtl8192u: add parenthesis around complex macros in
 r819xU_HTType.h

This patch fixes the following checkpatch error:
ERROR: Macros with complex values should be enclosed in parenthesis

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r819xU_HTType.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8192u/r819xU_HTType.h b/drivers/staging/rtl8192u/r819xU_HTType.h
index c2bc0ff6cb17..603a9403789f 100644
--- a/drivers/staging/rtl8192u/r819xU_HTType.h
+++ b/drivers/staging/rtl8192u/r819xU_HTType.h
@@ -27,7 +27,8 @@
 
 #define HT_SUPPORTED_MCS_1SS_BITMAP	0x000000ff
 #define HT_SUPPORTED_MCS_2SS_BITMAP	0x0000ff00
-#define HT_SUPPORTED_MCS_1SS_2SS_BITMAP	HT_MCS_1SS_BITMAP|HT_MCS_1SS_2SS_BITMAP
+#define HT_SUPPORTED_MCS_1SS_2SS_BITMAP	\
+		(HT_MCS_1SS_BITMAP | HT_MCS_1SS_2SS_BITMAP)
 
 
 typedef enum _HT_MCS_RATE {
@@ -74,7 +75,7 @@ typedef enum _CHNLOP {
 
 /* Determine if the Channel Operation is in progress */
 #define CHHLOP_IN_PROGRESS(_pHTInfo)	\
-		((_pHTInfo)->ChnlOp > CHNLOP_NONE) ? TRUE : FALSE
+		(((_pHTInfo)->ChnlOp > CHNLOP_NONE) ? TRUE : FALSE)
 
 
 typedef enum _HT_ACTION {
-- 
cgit 


From 1bafe45f9b2df1b7c7092b424ef7690ec7e030fb Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Thu, 10 Oct 2013 10:44:01 +0300
Subject: staging: rtl8192u: fix line size in r819xU_HTType.h

This patch fixes the following checkpatch warning in r819xU_HTType.h:
WARNING: line over 80 characters

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r819xU_HTType.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8192u/r819xU_HTType.h b/drivers/staging/rtl8192u/r819xU_HTType.h
index 603a9403789f..2cbb8e6584f8 100644
--- a/drivers/staging/rtl8192u/r819xU_HTType.h
+++ b/drivers/staging/rtl8192u/r819xU_HTType.h
@@ -267,7 +267,7 @@ typedef struct _RT_HIGH_THROUGHPUT {
 
 	/* For Bandwidth Switching */
 	u8			bSwBwInProgress;
-	CHNLOP			ChnlOp; /* software switching channel in progress. */
+	CHNLOP			ChnlOp; /* sw switching channel in progress. */
 	u8			SwBwStep;
 	struct timer_list	SwBwTimer;
 
-- 
cgit 


From deba326bfd863c2e96e792ea641023448894770b Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Thu, 10 Oct 2013 11:27:18 +0300
Subject: staging: rtl8192u: remove r8180_pm.c and r8180_pm.h

This patch removes r8180_pm.h and r8180_pm.c from rtl8192u because they
are not used anywhere in the driver.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r8180_pm.c | 48 -------------------------------------
 drivers/staging/rtl8192u/r8180_pm.h | 28 ----------------------
 2 files changed, 76 deletions(-)
 delete mode 100644 drivers/staging/rtl8192u/r8180_pm.c
 delete mode 100644 drivers/staging/rtl8192u/r8180_pm.h

diff --git a/drivers/staging/rtl8192u/r8180_pm.c b/drivers/staging/rtl8192u/r8180_pm.c
deleted file mode 100644
index 999968d41720..000000000000
--- a/drivers/staging/rtl8192u/r8180_pm.c
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
-   Power management interface routines.
-   Written by Mariusz Matuszek.
-   This code is currently just a placeholder for later work and
-   does not do anything useful.
-
-   This is part of rtl8180 OpenSource driver.
-   Copyright (C) Andrea Merello 2004  <andrea.merello@gmail.com>
-   Released under the terms of GPL (General Public Licence)
-*/
-
-#ifdef CONFIG_RTL8180_PM
-
-
-#include "r8180_hw.h"
-#include "r8180_pm.h"
-
-int rtl8180_save_state (struct pci_dev *dev, u32 state)
-{
-	printk(KERN_NOTICE "r8180 save state call (state %u).\n", state);
-	return(-EAGAIN);
-}
-
-
-int rtl8180_suspend (struct pci_dev *dev, u32 state)
-{
-	printk(KERN_NOTICE "r8180 suspend call (state %u).\n", state);
-	return(-EAGAIN);
-}
-
-
-int rtl8180_resume (struct pci_dev *dev)
-{
-	printk(KERN_NOTICE "r8180 resume call.\n");
-	return(-EAGAIN);
-}
-
-
-int rtl8180_enable_wake (struct pci_dev *dev, u32 state, int enable)
-{
-	printk(KERN_NOTICE "r8180 enable wake call (state %u, enable %d).\n",
-	       state, enable);
-	return(-EAGAIN);
-}
-
-
-
-#endif //CONFIG_RTL8180_PM
diff --git a/drivers/staging/rtl8192u/r8180_pm.h b/drivers/staging/rtl8192u/r8180_pm.h
deleted file mode 100644
index 4be63da0b781..000000000000
--- a/drivers/staging/rtl8192u/r8180_pm.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
-	Power management interface routines.
-	Written by Mariusz Matuszek.
-	This code is currently just a placeholder for later work and
-	does not do anything useful.
-
-	This is part of rtl8180 OpenSource driver.
-	Copyright (C) Andrea Merello 2004  <andrea.merello@gmail.com>
-	Released under the terms of GPL (General Public Licence)
-
-*/
-
-#ifdef CONFIG_RTL8180_PM
-
-#ifndef R8180_PM_H
-#define R8180_PM_H
-
-#include <linux/types.h>
-#include <linux/pci.h>
-
-int rtl8180_save_state (struct pci_dev *dev, u32 state);
-int rtl8180_suspend (struct pci_dev *dev, u32 state);
-int rtl8180_resume (struct pci_dev *dev);
-int rtl8180_enable_wake (struct pci_dev *dev, u32 state, int enable);
-
-#endif //R8180_PM_H
-
-#endif // CONFIG_RTL8180_PM
-- 
cgit 


From 8fa9cf5d8ad72fee546ae1dfbe311b76317aba51 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Thu, 10 Oct 2013 11:27:19 +0300
Subject: staging: rtl8192u: remove ieee80211_crypt.h

This patch removes ieee80211_crypt.h because this header file is the same as
ieee80211/ieee80211_crypt.h and the structures and functions declared in it
are used directly only inside ieee80211/.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/ieee80211_crypt.h | 86 ------------------------------
 1 file changed, 86 deletions(-)
 delete mode 100644 drivers/staging/rtl8192u/ieee80211_crypt.h

diff --git a/drivers/staging/rtl8192u/ieee80211_crypt.h b/drivers/staging/rtl8192u/ieee80211_crypt.h
deleted file mode 100644
index 0b4ea431982d..000000000000
--- a/drivers/staging/rtl8192u/ieee80211_crypt.h
+++ /dev/null
@@ -1,86 +0,0 @@
-/*
- * Original code based on Host AP (software wireless LAN access point) driver
- * for Intersil Prism2/2.5/3.
- *
- * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
- * <jkmaline@cc.hut.fi>
- * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
- *
- * Adaption to a generic IEEE 802.11 stack by James Ketrenos
- * <jketreno@linux.intel.com>
- *
- * Copyright (c) 2004, Intel Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation. See README and COPYING for
- * more details.
- */
-
-/*
- * This file defines the interface to the ieee80211 crypto module.
- */
-#ifndef IEEE80211_CRYPT_H
-#define IEEE80211_CRYPT_H
-
-#include <linux/skbuff.h>
-
-struct ieee80211_crypto_ops {
-	const char *name;
-
-	/* init new crypto context (e.g., allocate private data space,
-	 * select IV, etc.); returns NULL on failure or pointer to allocated
-	 * private data on success */
-	void * (*init)(int keyidx);
-
-	/* deinitialize crypto context and free allocated private data */
-	void (*deinit)(void *priv);
-
-	/* encrypt/decrypt return < 0 on error or >= 0 on success. The return
-	 * value from decrypt_mpdu is passed as the keyidx value for
-	 * decrypt_msdu. skb must have enough head and tail room for the
-	 * encryption; if not, error will be returned; these functions are
-	 * called for all MPDUs (i.e., fragments).
-	 */
-	int (*encrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv);
-	int (*decrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv);
-
-	/* These functions are called for full MSDUs, i.e. full frames.
-	 * These can be NULL if full MSDU operations are not needed. */
-	int (*encrypt_msdu)(struct sk_buff *skb, int hdr_len, void *priv);
-	int (*decrypt_msdu)(struct sk_buff *skb, int keyidx, int hdr_len,
-			    void *priv);
-
-	int (*set_key)(void *key, int len, u8 *seq, void *priv);
-	int (*get_key)(void *key, int len, u8 *seq, void *priv);
-
-	/* procfs handler for printing out key information and possible
-	 * statistics */
-	char * (*print_stats)(char *p, void *priv);
-
-	/* maximum number of bytes added by encryption; encrypt buf is
-	 * allocated with extra_prefix_len bytes, copy of in_buf, and
-	 * extra_postfix_len; encrypt need not use all this space, but
-	 * the result must start at the beginning of the buffer and correct
-	 * length must be returned */
-	int extra_prefix_len, extra_postfix_len;
-
-	struct module *owner;
-};
-
-struct ieee80211_crypt_data {
-	struct list_head list; /* delayed deletion list */
-	struct ieee80211_crypto_ops *ops;
-	void *priv;
-	atomic_t refcnt;
-};
-
-int ieee80211_register_crypto_ops(struct ieee80211_crypto_ops *ops);
-int ieee80211_unregister_crypto_ops(struct ieee80211_crypto_ops *ops);
-struct ieee80211_crypto_ops *ieee80211_get_crypto_ops(const char *name);
-void ieee80211_crypt_deinit_entries(struct ieee80211_device *, int);
-void ieee80211_crypt_deinit_handler(unsigned long);
-void ieee80211_crypt_delayed_deinit(struct ieee80211_device *ieee,
-				    struct ieee80211_crypt_data **crypt);
-
-#endif
-- 
cgit 


From 9f627100b99b93ba34478b07c18b9e7f40cc32a2 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Thu, 10 Oct 2013 11:27:20 +0300
Subject: staging: rtl8192u: copy dot11d.h in ieee80211/dot11d.h and remove it

This patch copies the content of dot11d.h into ieee80211/dot11d.h and then
removes it because practically the two header files are the same with the
difference that in dot11d.h some checkpatch warnings have been corrected.
This is done because the duplication of dot11d.h is unnecessary since the
structures and functions that defines are used directly only inside ieee80211/.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/dot11d.h           | 100 ----------------------------
 drivers/staging/rtl8192u/ieee80211/dot11d.h |  39 +++++------
 2 files changed, 20 insertions(+), 119 deletions(-)
 delete mode 100644 drivers/staging/rtl8192u/dot11d.h

diff --git a/drivers/staging/rtl8192u/dot11d.h b/drivers/staging/rtl8192u/dot11d.h
deleted file mode 100644
index 92e7a00f3ee1..000000000000
--- a/drivers/staging/rtl8192u/dot11d.h
+++ /dev/null
@@ -1,100 +0,0 @@
-#ifndef __INC_DOT11D_H
-#define __INC_DOT11D_H
-
-#include "ieee80211/ieee80211.h"
-
-
-typedef struct _CHNL_TXPOWER_TRIPLE {
-	u8 FirstChnl;
-	u8  NumChnls;
-	u8  MaxTxPowerInDbm;
-} CHNL_TXPOWER_TRIPLE, *PCHNL_TXPOWER_TRIPLE;
-
-typedef enum _DOT11D_STATE {
-	DOT11D_STATE_NONE = 0,
-	DOT11D_STATE_LEARNED,
-	DOT11D_STATE_DONE,
-} DOT11D_STATE;
-
-typedef struct _RT_DOT11D_INFO {
-	/* DECLARE_RT_OBJECT(RT_DOT11D_INFO); */
-
-	bool bEnabled; /* dot11MultiDomainCapabilityEnabled */
-
-	u16 CountryIeLen; /* > 0 if CountryIeBuf[] contains valid country information element. */
-	u8  CountryIeBuf[MAX_IE_LEN];
-	u8  CountryIeSrcAddr[6]; /* Source AP of the country IE. */
-	u8  CountryIeWatchdog;
-
-	u8  channel_map[MAX_CHANNEL_NUMBER+1];  /* !Value 0: Invalid, 1: Valid (active scan), 2: Valid (passive scan) */
-	u8  MaxTxPwrDbmList[MAX_CHANNEL_NUMBER+1];
-
-	DOT11D_STATE State;
-} RT_DOT11D_INFO, *PRT_DOT11D_INFO;
-#define eqMacAddr(a, b)		(((a)[0] == (b)[0] && \
-	(a)[1] == (b)[1] && (a)[2] == (b)[2] && (a)[3] == (b)[3] && \
-	(a)[4] == (b)[4] && (a)[5] == (b)[5]) ? 1 : 0)
-#define cpMacAddr(des, src)	      ((des)[0] = (src)[0], \
-	(des)[1] = (src)[1], (des)[2] = (src)[2], \
-	(des)[3] = (src)[3], (des)[4] = (src)[4], \
-	(des)[5] = (src)[5])
-#define GET_DOT11D_INFO(__pIeeeDev) ((PRT_DOT11D_INFO)((__pIeeeDev)->pDot11dInfo))
-
-#define IS_DOT11D_ENABLE(__pIeeeDev) (GET_DOT11D_INFO(__pIeeeDev)->bEnabled)
-#define IS_COUNTRY_IE_VALID(__pIeeeDev) (GET_DOT11D_INFO(__pIeeeDev)->CountryIeLen > 0)
-
-#define IS_EQUAL_CIE_SRC(__pIeeeDev, __pTa) eqMacAddr(GET_DOT11D_INFO(__pIeeeDev)->CountryIeSrcAddr, __pTa)
-#define UPDATE_CIE_SRC(__pIeeeDev, __pTa) cpMacAddr(GET_DOT11D_INFO(__pIeeeDev)->CountryIeSrcAddr, __pTa)
-
-#define IS_COUNTRY_IE_CHANGED(__pIeeeDev, __Ie) \
-	(((__Ie).Length == 0 || (__Ie).Length != GET_DOT11D_INFO(__pIeeeDev)->CountryIeLen) ? \
-	FALSE : \
-	(!memcmp(GET_DOT11D_INFO(__pIeeeDev)->CountryIeBuf, (__Ie).Octet, (__Ie).Length)))
-
-#define CIE_WATCHDOG_TH 1
-#define GET_CIE_WATCHDOG(__pIeeeDev) (GET_DOT11D_INFO(__pIeeeDev)->CountryIeWatchdog)
-#define RESET_CIE_WATCHDOG(__pIeeeDev) GET_CIE_WATCHDOG(__pIeeeDev) = 0
-#define UPDATE_CIE_WATCHDOG(__pIeeeDev) (++GET_CIE_WATCHDOG(__pIeeeDev))
-
-#define IS_DOT11D_STATE_DONE(__pIeeeDev) (GET_DOT11D_INFO(__pIeeeDev)->State == DOT11D_STATE_DONE)
-
-
-void
-Dot11d_Init(
-	struct ieee80211_device *dev
-	);
-
-void
-Dot11d_Reset(
-	struct ieee80211_device *dev
-	);
-
-void
-Dot11d_UpdateCountryIe(
-	struct ieee80211_device *dev,
-	u8 *pTaddr,
-	u16 CoutryIeLen,
-	u8 *pCoutryIe
-	);
-
-u8
-DOT11D_GetMaxTxPwrInDbm(
-	struct ieee80211_device *dev,
-	u8 Channel
-	);
-
-void
-DOT11D_ScanComplete(
-	struct ieee80211_device *dev
-	);
-
-int IsLegalChannel(
-	struct ieee80211_device *dev,
-	u8 channel
-);
-
-int ToLegalChannel(
-	struct ieee80211_device *dev,
-	u8 channel
-);
-#endif /* #ifndef __INC_DOT11D_H */
diff --git a/drivers/staging/rtl8192u/ieee80211/dot11d.h b/drivers/staging/rtl8192u/ieee80211/dot11d.h
index 6aa8c15eba39..bd75e29adc2c 100644
--- a/drivers/staging/rtl8192u/ieee80211/dot11d.h
+++ b/drivers/staging/rtl8192u/ieee80211/dot11d.h
@@ -4,42 +4,43 @@
 #include "ieee80211.h"
 
 
-//#define DOT11D_MAX_CHNL_NUM 83
-
 typedef struct _CHNL_TXPOWER_TRIPLE {
 	u8 FirstChnl;
 	u8  NumChnls;
 	u8  MaxTxPowerInDbm;
-}CHNL_TXPOWER_TRIPLE, *PCHNL_TXPOWER_TRIPLE;
+} CHNL_TXPOWER_TRIPLE, *PCHNL_TXPOWER_TRIPLE;
 
 typedef enum _DOT11D_STATE {
 	DOT11D_STATE_NONE = 0,
 	DOT11D_STATE_LEARNED,
 	DOT11D_STATE_DONE,
-}DOT11D_STATE;
+} DOT11D_STATE;
 
 typedef struct _RT_DOT11D_INFO {
-	//DECLARE_RT_OBJECT(RT_DOT11D_INFO);
+	/* DECLARE_RT_OBJECT(RT_DOT11D_INFO); */
 
-	bool bEnabled; // dot11MultiDomainCapabilityEnabled
+	bool bEnabled; /* dot11MultiDomainCapabilityEnabled */
 
-	u16 CountryIeLen; // > 0 if CountryIeBuf[] contains valid country information element.
+	u16 CountryIeLen; /* > 0 if CountryIeBuf[] contains valid country information element. */
 	u8  CountryIeBuf[MAX_IE_LEN];
-	u8  CountryIeSrcAddr[6]; // Source AP of the country IE.
+	u8  CountryIeSrcAddr[6]; /* Source AP of the country IE. */
 	u8  CountryIeWatchdog;
 
-	u8  channel_map[MAX_CHANNEL_NUMBER+1];  //!!!Value 0: Invalid, 1: Valid (active scan), 2: Valid (passive scan)
-	//u8  ChnlListLen; // #Bytes valid in ChnlList[].
-	//u8  ChnlList[DOT11D_MAX_CHNL_NUM];
+	u8  channel_map[MAX_CHANNEL_NUMBER+1];  /* !Value 0: Invalid, 1: Valid (active scan), 2: Valid (passive scan) */
 	u8  MaxTxPwrDbmList[MAX_CHANNEL_NUMBER+1];
 
 	DOT11D_STATE State;
-}RT_DOT11D_INFO, *PRT_DOT11D_INFO;
-#define eqMacAddr(a,b)		( ((a)[0]==(b)[0] && (a)[1]==(b)[1] && (a)[2]==(b)[2] && (a)[3]==(b)[3] && (a)[4]==(b)[4] && (a)[5]==(b)[5]) ? 1:0 )
-#define cpMacAddr(des,src)	      ((des)[0]=(src)[0],(des)[1]=(src)[1],(des)[2]=(src)[2],(des)[3]=(src)[3],(des)[4]=(src)[4],(des)[5]=(src)[5])
+} RT_DOT11D_INFO, *PRT_DOT11D_INFO;
+#define eqMacAddr(a, b)		(((a)[0] == (b)[0] && \
+	(a)[1] == (b)[1] && (a)[2] == (b)[2] && (a)[3] == (b)[3] && \
+	(a)[4] == (b)[4] && (a)[5] == (b)[5]) ? 1 : 0)
+#define cpMacAddr(des, src)	      ((des)[0] = (src)[0], \
+	(des)[1] = (src)[1], (des)[2] = (src)[2], \
+	(des)[3] = (src)[3], (des)[4] = (src)[4], \
+	(des)[5] = (src)[5])
 #define GET_DOT11D_INFO(__pIeeeDev) ((PRT_DOT11D_INFO)((__pIeeeDev)->pDot11dInfo))
 
-#define IS_DOT11D_ENABLE(__pIeeeDev) GET_DOT11D_INFO(__pIeeeDev)->bEnabled
+#define IS_DOT11D_ENABLE(__pIeeeDev) (GET_DOT11D_INFO(__pIeeeDev)->bEnabled)
 #define IS_COUNTRY_IE_VALID(__pIeeeDev) (GET_DOT11D_INFO(__pIeeeDev)->CountryIeLen > 0)
 
 #define IS_EQUAL_CIE_SRC(__pIeeeDev, __pTa) eqMacAddr(GET_DOT11D_INFO(__pIeeeDev)->CountryIeSrcAddr, __pTa)
@@ -51,9 +52,9 @@ typedef struct _RT_DOT11D_INFO {
 	(!memcmp(GET_DOT11D_INFO(__pIeeeDev)->CountryIeBuf, (__Ie).Octet, (__Ie).Length)))
 
 #define CIE_WATCHDOG_TH 1
-#define GET_CIE_WATCHDOG(__pIeeeDev) GET_DOT11D_INFO(__pIeeeDev)->CountryIeWatchdog
+#define GET_CIE_WATCHDOG(__pIeeeDev) (GET_DOT11D_INFO(__pIeeeDev)->CountryIeWatchdog)
 #define RESET_CIE_WATCHDOG(__pIeeeDev) GET_CIE_WATCHDOG(__pIeeeDev) = 0
-#define UPDATE_CIE_WATCHDOG(__pIeeeDev) ++GET_CIE_WATCHDOG(__pIeeeDev)
+#define UPDATE_CIE_WATCHDOG(__pIeeeDev) (++GET_CIE_WATCHDOG(__pIeeeDev))
 
 #define IS_DOT11D_STATE_DONE(__pIeeeDev) (GET_DOT11D_INFO(__pIeeeDev)->State == DOT11D_STATE_DONE)
 
@@ -72,7 +73,7 @@ void
 Dot11d_UpdateCountryIe(
 	struct ieee80211_device *dev,
 	u8 *pTaddr,
-	u16	CoutryIeLen,
+	u16 CoutryIeLen,
 	u8 *pCoutryIe
 	);
 
@@ -96,4 +97,4 @@ int ToLegalChannel(
 	struct ieee80211_device *dev,
 	u8 channel
 );
-#endif // #ifndef __INC_DOT11D_H
+#endif /* #ifndef __INC_DOT11D_H */
-- 
cgit 


From d8d8e148fd1176fe5ac496478afe4efb67435ae1 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Thu, 10 Oct 2013 23:25:27 +0300
Subject: staging: octeon-usb: delete unused cvmx_usbnx_usbp_ctl_status
 definitions

cvmx_usbnx_usbp_ctl_status was multiplied for different OCTEONS and all
those definitions are unused. Delete them.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/cvmx-usbnx-defs.h | 382 ---------------------------
 1 file changed, 382 deletions(-)

diff --git a/drivers/staging/octeon-usb/cvmx-usbnx-defs.h b/drivers/staging/octeon-usb/cvmx-usbnx-defs.h
index e06aafa5726a..c73df649d23b 100644
--- a/drivers/staging/octeon-usb/cvmx-usbnx-defs.h
+++ b/drivers/staging/octeon-usb/cvmx-usbnx-defs.h
@@ -498,388 +498,6 @@ union cvmx_usbnx_usbp_ctl_status {
 		uint64_t tdata_in		: 8;
 		uint64_t ate_reset		: 1;
 	} s;
-	/**
-	 * struct cvmx_usbnx_usbp_ctl_status_cn30xx
-	 * @bist_done: PHY Bist Done.
-	 *	Asserted at the end of the PHY BIST sequence.
-	 * @bist_err: PHY Bist Error.
-	 *	Indicates an internal error was detected during
-	 *	the BIST sequence.
-	 * @tdata_out: PHY Test Data Out.
-	 *	Presents either internaly generated signals or
-	 *	test register contents, based upon the value of
-	 *	test_data_out_sel.
-	 * @dma_bmode: When set to 1 the L2C DMA address will be updated
-	 *	with byte-counts between packets. When set to 0
-	 *	the L2C DMA address is incremented to the next
-	 *	4-byte aligned address after adding byte-count.
-	 * @usbc_end: Bigendian input to the USB Core. This should be
-	 *	set to '0' for operation.
-	 * @usbp_bist: PHY, This is cleared '0' to run BIST on the USBP.
-	 * @tclk: PHY Test Clock, used to load TDATA_IN to the USBP.
-	 * @dp_pulld: PHY DP_PULLDOWN input to the USB-PHY.
-	 *	This signal enables the pull-down resistance on
-	 *	the D+ line. '1' pull down-resistance is connected
-	 *	to D+/ '0' pull down resistance is not connected
-	 *	to D+. When an A/B device is acting as a host
-	 *	(downstream-facing port), dp_pulldown and
-	 *	dm_pulldown are enabled. This must not toggle
-	 *	during normal opeartion.
-	 * @dm_pulld: PHY DM_PULLDOWN input to the USB-PHY.
-	 *	This signal enables the pull-down resistance on
-	 *	the D- line. '1' pull down-resistance is connected
-	 *	to D-. '0' pull down resistance is not connected
-	 *	to D-. When an A/B device is acting as a host
-	 *	(downstream-facing port), dp_pulldown and
-	 *	dm_pulldown are enabled. This must not toggle
-	 *	during normal opeartion.
-	 * @hst_mode: When '0' the USB is acting as HOST, when '1'
-	 *	USB is acting as device. This field needs to be
-	 *	set while the USB is in reset.
-	 * @tuning: Transmitter Tuning for High-Speed Operation.
-	 *	Tunes the current supply and rise/fall output
-	 *	times for high-speed operation.
-	 *	[20:19] == 11: Current supply increased
-	 *	approximately 9%
-	 *	[20:19] == 10: Current supply increased
-	 *	approximately 4.5%
-	 *	[20:19] == 01: Design default.
-	 *	[20:19] == 00: Current supply decreased
-	 *	approximately 4.5%
-	 *	[22:21] == 11: Rise and fall times are increased.
-	 *	[22:21] == 10: Design default.
-	 *	[22:21] == 01: Rise and fall times are decreased.
-	 *	[22:21] == 00: Rise and fall times are decreased
-	 *	further as compared to the 01 setting.
-	 * @tx_bs_enh: Transmit Bit Stuffing on [15:8].
-	 *	Enables or disables bit stuffing on data[15:8]
-	 *	when bit-stuffing is enabled.
-	 * @tx_bs_en: Transmit Bit Stuffing on [7:0].
-	 *	Enables or disables bit stuffing on data[7:0]
-	 *	when bit-stuffing is enabled.
-	 * @loop_enb: PHY Loopback Test Enable.
-	 *	'1': During data transmission the receive is
-	 *	enabled.
-	 *	'0': During data transmission the receive is
-	 *	disabled.
-	 *	Must be '0' for normal operation.
-	 * @vtest_enb: Analog Test Pin Enable.
-	 *	'1' The PHY's analog_test pin is enabled for the
-	 *	input and output of applicable analog test signals.
-	 *	'0' THe analog_test pin is disabled.
-	 * @bist_enb: Built-In Self Test Enable.
-	 *	Used to activate BIST in the PHY.
-	 * @tdata_sel: Test Data Out Select.
-	 *	'1' test_data_out[3:0] (PHY) register contents
-	 *	are output. '0' internaly generated signals are
-	 *	output.
-	 * @taddr_in: Mode Address for Test Interface.
-	 *	Specifies the register address for writing to or
-	 *	reading from the PHY test interface register.
-	 * @tdata_in: Internal Testing Register Input Data and Select
-	 *	This is a test bus. Data is present on [3:0],
-	 *	and its corresponding select (enable) is present
-	 *	on bits [7:4].
-	 * @ate_reset: Reset input from automatic test equipment.
-	 *	This is a test signal. When the USB Core is
-	 *	powered up (not in Susned Mode), an automatic
-	 *	tester can use this to disable phy_clock and
-	 *	free_clk, then re-eanable them with an aligned
-	 *	phase.
-	 *	'1': The phy_clk and free_clk outputs are
-	 *	disabled. "0": The phy_clock and free_clk outputs
-	 *	are available within a specific period after the
-	 *	de-assertion.
-	 */
-	struct cvmx_usbnx_usbp_ctl_status_cn30xx {
-		uint64_t reserved_38_63	: 26;
-		uint64_t bist_done	: 1;
-		uint64_t bist_err	: 1;
-		uint64_t tdata_out	: 4;
-		uint64_t reserved_30_31	: 2;
-		uint64_t dma_bmode	: 1;
-		uint64_t usbc_end	: 1;
-		uint64_t usbp_bist	: 1;
-		uint64_t tclk		: 1;
-		uint64_t dp_pulld	: 1;
-		uint64_t dm_pulld	: 1;
-		uint64_t hst_mode	: 1;
-		uint64_t tuning		: 4;
-		uint64_t tx_bs_enh	: 1;
-		uint64_t tx_bs_en	: 1;
-		uint64_t loop_enb	: 1;
-		uint64_t vtest_enb	: 1;
-		uint64_t bist_enb	: 1;
-		uint64_t tdata_sel	: 1;
-		uint64_t taddr_in	: 4;
-		uint64_t tdata_in	: 8;
-		uint64_t ate_reset	: 1;
-	} cn30xx;
-	/**
-	 * struct cvmx_usbnx_usbp_ctl_status_cn50xx
-	 * @txrisetune: HS Transmitter Rise/Fall Time Adjustment
-	 * @txvreftune: HS DC Voltage Level Adjustment
-	 * @txfslstune: FS/LS Source Impedence Adjustment
-	 * @txhsxvtune: Transmitter High-Speed Crossover Adjustment
-	 * @sqrxtune: Squelch Threshold Adjustment
-	 * @compdistune: Disconnect Threshold Adjustment
-	 * @otgtune: VBUS Valid Threshold Adjustment
-	 * @otgdisable: OTG Block Disable
-	 * @portreset: Per_Port Reset
-	 * @drvvbus: Drive VBUS
-	 * @lsbist: Low-Speed BIST Enable.
-	 * @fsbist: Full-Speed BIST Enable.
-	 * @hsbist: High-Speed BIST Enable.
-	 * @bist_done: PHY Bist Done.
-	 *	Asserted at the end of the PHY BIST sequence.
-	 * @bist_err: PHY Bist Error.
-	 *	Indicates an internal error was detected during
-	 *	the BIST sequence.
-	 * @tdata_out: PHY Test Data Out.
-	 *	Presents either internaly generated signals or
-	 *	test register contents, based upon the value of
-	 *	test_data_out_sel.
-	 * @txpreemphasistune: HS Transmitter Pre-Emphasis Enable
-	 * @dma_bmode: When set to 1 the L2C DMA address will be updated
-	 *	with byte-counts between packets. When set to 0
-	 *	the L2C DMA address is incremented to the next
-	 *	4-byte aligned address after adding byte-count.
-	 * @usbc_end: Bigendian input to the USB Core. This should be
-	 *	set to '0' for operation.
-	 * @usbp_bist: PHY, This is cleared '0' to run BIST on the USBP.
-	 * @tclk: PHY Test Clock, used to load TDATA_IN to the USBP.
-	 * @dp_pulld: PHY DP_PULLDOWN input to the USB-PHY.
-	 *	This signal enables the pull-down resistance on
-	 *	the D+ line. '1' pull down-resistance is connected
-	 *	to D+/ '0' pull down resistance is not connected
-	 *	to D+. When an A/B device is acting as a host
-	 *	(downstream-facing port), dp_pulldown and
-	 *	dm_pulldown are enabled. This must not toggle
-	 *	during normal opeartion.
-	 * @dm_pulld: PHY DM_PULLDOWN input to the USB-PHY.
-	 *	This signal enables the pull-down resistance on
-	 *	the D- line. '1' pull down-resistance is connected
-	 *	to D-. '0' pull down resistance is not connected
-	 *	to D-. When an A/B device is acting as a host
-	 *	(downstream-facing port), dp_pulldown and
-	 *	dm_pulldown are enabled. This must not toggle
-	 *	during normal opeartion.
-	 * @hst_mode: When '0' the USB is acting as HOST, when '1'
-	 *	USB is acting as device. This field needs to be
-	 *	set while the USB is in reset.
-	 * @tx_bs_enh: Transmit Bit Stuffing on [15:8].
-	 *	Enables or disables bit stuffing on data[15:8]
-	 *	when bit-stuffing is enabled.
-	 * @tx_bs_en: Transmit Bit Stuffing on [7:0].
-	 *	Enables or disables bit stuffing on data[7:0]
-	 *	when bit-stuffing is enabled.
-	 * @loop_enb: PHY Loopback Test Enable.
-	 *	'1': During data transmission the receive is
-	 *	enabled.
-	 *	'0': During data transmission the receive is
-	 *	disabled.
-	 *	Must be '0' for normal operation.
-	 * @vtest_enb: Analog Test Pin Enable.
-	 *	'1' The PHY's analog_test pin is enabled for the
-	 *	input and output of applicable analog test signals.
-	 *	'0' THe analog_test pin is disabled.
-	 * @bist_enb: Built-In Self Test Enable.
-	 *	Used to activate BIST in the PHY.
-	 * @tdata_sel: Test Data Out Select.
-	 *	'1' test_data_out[3:0] (PHY) register contents
-	 *	are output. '0' internaly generated signals are
-	 *	output.
-	 * @taddr_in: Mode Address for Test Interface.
-	 *	Specifies the register address for writing to or
-	 *	reading from the PHY test interface register.
-	 * @tdata_in: Internal Testing Register Input Data and Select
-	 *	This is a test bus. Data is present on [3:0],
-	 *	and its corresponding select (enable) is present
-	 *	on bits [7:4].
-	 * @ate_reset: Reset input from automatic test equipment.
-	 *	This is a test signal. When the USB Core is
-	 *	powered up (not in Susned Mode), an automatic
-	 *	tester can use this to disable phy_clock and
-	 *	free_clk, then re-eanable them with an aligned
-	 *	phase.
-	 *	'1': The phy_clk and free_clk outputs are
-	 *	disabled. "0": The phy_clock and free_clk outputs
-	 *	are available within a specific period after the
-	 *	de-assertion.
-	 */
-	struct cvmx_usbnx_usbp_ctl_status_cn50xx {
-		uint64_t txrisetune		: 1;
-		uint64_t txvreftune		: 4;
-		uint64_t txfslstune		: 4;
-		uint64_t txhsxvtune		: 2;
-		uint64_t sqrxtune		: 3;
-		uint64_t compdistune		: 3;
-		uint64_t otgtune		: 3;
-		uint64_t otgdisable		: 1;
-		uint64_t portreset		: 1;
-		uint64_t drvvbus		: 1;
-		uint64_t lsbist			: 1;
-		uint64_t fsbist			: 1;
-		uint64_t hsbist			: 1;
-		uint64_t bist_done		: 1;
-		uint64_t bist_err		: 1;
-		uint64_t tdata_out		: 4;
-		uint64_t reserved_31_31		: 1;
-		uint64_t txpreemphasistune	: 1;
-		uint64_t dma_bmode		: 1;
-		uint64_t usbc_end		: 1;
-		uint64_t usbp_bist		: 1;
-		uint64_t tclk			: 1;
-		uint64_t dp_pulld		: 1;
-		uint64_t dm_pulld		: 1;
-		uint64_t hst_mode		: 1;
-		uint64_t reserved_19_22		: 4;
-		uint64_t tx_bs_enh		: 1;
-		uint64_t tx_bs_en		: 1;
-		uint64_t loop_enb		: 1;
-		uint64_t vtest_enb		: 1;
-		uint64_t bist_enb		: 1;
-		uint64_t tdata_sel		: 1;
-		uint64_t taddr_in		: 4;
-		uint64_t tdata_in		: 8;
-		uint64_t ate_reset		: 1;
-	} cn50xx;
-	/**
-	 * struct cvmx_usbnx_usbp_ctl_status_cn52xx
-	 * @txrisetune: HS Transmitter Rise/Fall Time Adjustment
-	 * @txvreftune: HS DC Voltage Level Adjustment
-	 * @txfslstune: FS/LS Source Impedence Adjustment
-	 * @txhsxvtune: Transmitter High-Speed Crossover Adjustment
-	 * @sqrxtune: Squelch Threshold Adjustment
-	 * @compdistune: Disconnect Threshold Adjustment
-	 * @otgtune: VBUS Valid Threshold Adjustment
-	 * @otgdisable: OTG Block Disable
-	 * @portreset: Per_Port Reset
-	 * @drvvbus: Drive VBUS
-	 * @lsbist: Low-Speed BIST Enable.
-	 * @fsbist: Full-Speed BIST Enable.
-	 * @hsbist: High-Speed BIST Enable.
-	 * @bist_done: PHY Bist Done.
-	 *	Asserted at the end of the PHY BIST sequence.
-	 * @bist_err: PHY Bist Error.
-	 *	Indicates an internal error was detected during
-	 *	the BIST sequence.
-	 * @tdata_out: PHY Test Data Out.
-	 *	Presents either internaly generated signals or
-	 *	test register contents, based upon the value of
-	 *	test_data_out_sel.
-	 * @siddq: Drives the USBP (USB-PHY) SIDDQ input.
-	 *	Normally should be set to zero.
-	 *	When customers have no intent to use USB PHY
-	 *	interface, they should:
-	 *	- still provide 3.3V to USB_VDD33, and
-	 *	- tie USB_REXT to 3.3V supply, and
-	 *	- set USBN*_USBP_CTL_STATUS[SIDDQ]=1
-	 * @txpreemphasistune: HS Transmitter Pre-Emphasis Enable
-	 * @dma_bmode: When set to 1 the L2C DMA address will be updated
-	 *	with byte-counts between packets. When set to 0
-	 *	the L2C DMA address is incremented to the next
-	 *	4-byte aligned address after adding byte-count.
-	 * @usbc_end: Bigendian input to the USB Core. This should be
-	 *	set to '0' for operation.
-	 * @usbp_bist: PHY, This is cleared '0' to run BIST on the USBP.
-	 * @tclk: PHY Test Clock, used to load TDATA_IN to the USBP.
-	 * @dp_pulld: PHY DP_PULLDOWN input to the USB-PHY.
-	 *	This signal enables the pull-down resistance on
-	 *	the D+ line. '1' pull down-resistance is connected
-	 *	to D+/ '0' pull down resistance is not connected
-	 *	to D+. When an A/B device is acting as a host
-	 *	(downstream-facing port), dp_pulldown and
-	 *	dm_pulldown are enabled. This must not toggle
-	 *	during normal opeartion.
-	 * @dm_pulld: PHY DM_PULLDOWN input to the USB-PHY.
-	 *	This signal enables the pull-down resistance on
-	 *	the D- line. '1' pull down-resistance is connected
-	 *	to D-. '0' pull down resistance is not connected
-	 *	to D-. When an A/B device is acting as a host
-	 *	(downstream-facing port), dp_pulldown and
-	 *	dm_pulldown are enabled. This must not toggle
-	 *	during normal opeartion.
-	 * @hst_mode: When '0' the USB is acting as HOST, when '1'
-	 *	USB is acting as device. This field needs to be
-	 *	set while the USB is in reset.
-	 * @tx_bs_enh: Transmit Bit Stuffing on [15:8].
-	 *	Enables or disables bit stuffing on data[15:8]
-	 *	when bit-stuffing is enabled.
-	 * @tx_bs_en: Transmit Bit Stuffing on [7:0].
-	 *	Enables or disables bit stuffing on data[7:0]
-	 *	when bit-stuffing is enabled.
-	 * @loop_enb: PHY Loopback Test Enable.
-	 *	'1': During data transmission the receive is
-	 *	enabled.
-	 *	'0': During data transmission the receive is
-	 *	disabled.
-	 *	Must be '0' for normal operation.
-	 * @vtest_enb: Analog Test Pin Enable.
-	 *	'1' The PHY's analog_test pin is enabled for the
-	 *	input and output of applicable analog test signals.
-	 *	'0' THe analog_test pin is disabled.
-	 * @bist_enb: Built-In Self Test Enable.
-	 *	Used to activate BIST in the PHY.
-	 * @tdata_sel: Test Data Out Select.
-	 *	'1' test_data_out[3:0] (PHY) register contents
-	 *	are output. '0' internaly generated signals are
-	 *	output.
-	 * @taddr_in: Mode Address for Test Interface.
-	 *	Specifies the register address for writing to or
-	 *	reading from the PHY test interface register.
-	 * @tdata_in: Internal Testing Register Input Data and Select
-	 *	This is a test bus. Data is present on [3:0],
-	 *	and its corresponding select (enable) is present
-	 *	on bits [7:4].
-	 * @ate_reset: Reset input from automatic test equipment.
-	 *	This is a test signal. When the USB Core is
-	 *	powered up (not in Susned Mode), an automatic
-	 *	tester can use this to disable phy_clock and
-	 *	free_clk, then re-eanable them with an aligned
-	 *	phase.
-	 *	'1': The phy_clk and free_clk outputs are
-	 *	disabled. "0": The phy_clock and free_clk outputs
-	 *	are available within a specific period after the
-	 *	de-assertion.
-	 */
-	struct cvmx_usbnx_usbp_ctl_status_cn52xx {
-		uint64_t txrisetune		: 1;
-		uint64_t txvreftune		: 4;
-		uint64_t txfslstune		: 4;
-		uint64_t txhsxvtune		: 2;
-		uint64_t sqrxtune		: 3;
-		uint64_t compdistune		: 3;
-		uint64_t otgtune		: 3;
-		uint64_t otgdisable		: 1;
-		uint64_t portreset		: 1;
-		uint64_t drvvbus		: 1;
-		uint64_t lsbist			: 1;
-		uint64_t fsbist			: 1;
-		uint64_t hsbist			: 1;
-		uint64_t bist_done		: 1;
-		uint64_t bist_err		: 1;
-		uint64_t tdata_out		: 4;
-		uint64_t siddq			: 1;
-		uint64_t txpreemphasistune	: 1;
-		uint64_t dma_bmode		: 1;
-		uint64_t usbc_end		: 1;
-		uint64_t usbp_bist		: 1;
-		uint64_t tclk			: 1;
-		uint64_t dp_pulld		: 1;
-		uint64_t dm_pulld		: 1;
-		uint64_t hst_mode		: 1;
-		uint64_t reserved_19_22		: 4;
-		uint64_t tx_bs_enh		: 1;
-		uint64_t tx_bs_en		: 1;
-		uint64_t loop_enb		: 1;
-		uint64_t vtest_enb		: 1;
-		uint64_t bist_enb		: 1;
-		uint64_t tdata_sel		: 1;
-		uint64_t taddr_in		: 4;
-		uint64_t tdata_in		: 8;
-		uint64_t ate_reset		: 1;
-	} cn52xx;
 };
 
 #endif
-- 
cgit 


From 34b70b9e05ba64c71331622b0263964364d5a351 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Thu, 10 Oct 2013 23:25:28 +0300
Subject: staging: octeon-usb: delete cvmx_usbnx_clk_ctl_cn50xx

Add the missing bits to common clk ctl definition, and we can delete
duplicated definitions.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/cvmx-usbnx-defs.h | 105 +++------------------------
 drivers/staging/octeon-usb/octeon-hcd.c      |   8 +-
 2 files changed, 15 insertions(+), 98 deletions(-)

diff --git a/drivers/staging/octeon-usb/cvmx-usbnx-defs.h b/drivers/staging/octeon-usb/cvmx-usbnx-defs.h
index c73df649d23b..87e9f330e52f 100644
--- a/drivers/staging/octeon-usb/cvmx-usbnx-defs.h
+++ b/drivers/staging/octeon-usb/cvmx-usbnx-defs.h
@@ -93,6 +93,16 @@ union cvmx_usbnx_clk_ctl {
 	 *	suspend.
 	 *	The value of this field must be set while POR is
 	 *	active.
+	 * @p_rtype: PHY reference clock type (CN50XX/CN52XX/CN56XX only)
+	 *	'0' The USB-PHY uses a 12MHz crystal as a clock
+	 *	source at the USB_XO and USB_XI pins
+	 *	'1' Reserved
+	 *	'2' The USB_PHY uses 12/24/48MHz 2.5V board clock
+	 *	at the USB_XO pin. USB_XI should be tied to
+	 *	ground in this case.
+	 *	'3' Reserved
+	 *	(bit 14 was P_XENBN on 3xxx)
+	 *	(bit 15 was P_RCLK on 3xxx)
 	 * @p_com_on: '0' Force USB-PHY XO Bias, Bandgap and PLL to
 	 *	remain powered in Suspend Mode.
 	 *	'1' The USB-PHY XO Bias, Bandgap and PLL are
@@ -147,7 +157,7 @@ union cvmx_usbnx_clk_ctl {
 		uint64_t divide2	: 2;
 		uint64_t hclk_rst	: 1;
 		uint64_t p_x_on		: 1;
-		uint64_t reserved_14_15	: 2;
+		uint64_t p_rtype	: 2;
 		uint64_t p_com_on	: 1;
 		uint64_t p_c_sel	: 2;
 		uint64_t cdiv_byp	: 1;
@@ -243,99 +253,6 @@ union cvmx_usbnx_clk_ctl {
 		uint64_t divide		: 3;
 	} cn30xx;
 	struct cvmx_usbnx_clk_ctl_cn30xx cn31xx;
-	/**
-	 * struct cvmx_usbnx_clk_ctl_cn50xx
-	 * @divide2: The 'hclk' used by the USB subsystem is derived
-	 *	from the eclk.
-	 *	Also see the field DIVIDE. DIVIDE2<1> must currently
-	 *	be zero because it is not implemented, so the maximum
-	 *	ratio of eclk/hclk is currently 16.
-	 *	The actual divide number for hclk is:
-	 *	(DIVIDE2 + 1) * (DIVIDE + 1)
-	 * @hclk_rst: When this field is '0' the HCLK-DIVIDER used to
-	 *	generate the hclk in the USB Subsystem is held
-	 *	in reset. This bit must be set to '0' before
-	 *	changing the value os DIVIDE in this register.
-	 *	The reset to the HCLK_DIVIDERis also asserted
-	 *	when core reset is asserted.
-	 * @p_rtype: PHY reference clock type
-	 *	'0' The USB-PHY uses a 12MHz crystal as a clock
-	 *	source at the USB_XO and USB_XI pins
-	 *	'1' Reserved
-	 *	'2' The USB_PHY uses 12/24/48MHz 2.5V board clock
-	 *	at the USB_XO pin. USB_XI should be tied to
-	 *	ground in this case.
-	 *	'3' Reserved
-	 *	(bit 14 was P_XENBN on 3xxx)
-	 *	(bit 15 was P_RCLK on 3xxx)
-	 * @p_com_on: '0' Force USB-PHY XO Bias, Bandgap and PLL to
-	 *	remain powered in Suspend Mode.
-	 *	'1' The USB-PHY XO Bias, Bandgap and PLL are
-	 *	powered down in suspend mode.
-	 *	The value of this field must be set while POR is
-	 *	active.
-	 * @p_c_sel: Phy clock speed select.
-	 *	Selects the reference clock / crystal frequency.
-	 *	'11': Reserved
-	 *	'10': 48 MHz (reserved when a crystal is used)
-	 *	'01': 24 MHz (reserved when a crystal is used)
-	 *	'00': 12 MHz
-	 *	The value of this field must be set while POR is
-	 *	active.
-	 *	NOTE: if a crystal is used as a reference clock,
-	 *	this field must be set to 12 MHz.
-	 * @cdiv_byp: Used to enable the bypass input to the USB_CLK_DIV.
-	 * @sd_mode: Scaledown mode for the USBC. Control timing events
-	 *	in the USBC, for normal operation this must be '0'.
-	 * @s_bist: Starts bist on the hclk memories, during the '0'
-	 *	to '1' transition.
-	 * @por: Power On Reset for the PHY.
-	 *	Resets all the PHYS registers and state machines.
-	 * @enable: When '1' allows the generation of the hclk. When
-	 *	'0' the hclk will not be generated. SEE DIVIDE
-	 *	field of this register.
-	 * @prst: When this field is '0' the reset associated with
-	 *	the phy_clk functionality in the USB Subsystem is
-	 *	help in reset. This bit should not be set to '1'
-	 *	until the time it takes 6 clocks (hclk or phy_clk,
-	 *	whichever is slower) has passed. Under normal
-	 *	operation once this bit is set to '1' it should not
-	 *	be set to '0'.
-	 * @hrst: When this field is '0' the reset associated with
-	 *	the hclk functioanlity in the USB Subsystem is
-	 *	held in reset.This bit should not be set to '1'
-	 *	until 12ms after phy_clk is stable. Under normal
-	 *	operation, once this bit is set to '1' it should
-	 *	not be set to '0'.
-	 * @divide: The frequency of 'hclk' used by the USB subsystem
-	 *	is the eclk frequency divided by the value of
-	 *	(DIVIDE2 + 1) * (DIVIDE + 1), also see the field
-	 *	DIVIDE2 of this register.
-	 *	The hclk frequency should be less than 125Mhz.
-	 *	After writing a value to this field the SW should
-	 *	read the field for the value written.
-	 *	The ENABLE field of this register should not be set
-	 *	until AFTER this field is set and then read.
-	 */
-	struct cvmx_usbnx_clk_ctl_cn50xx {
-		uint64_t reserved_20_63	: 44;
-		uint64_t divide2	: 2;
-		uint64_t hclk_rst	: 1;
-		uint64_t reserved_16_16 : 1;
-		uint64_t p_rtype	: 2;
-		uint64_t p_com_on	: 1;
-		uint64_t p_c_sel	: 2;
-		uint64_t cdiv_byp	: 1;
-		uint64_t sd_mode	: 2;
-		uint64_t s_bist		: 1;
-		uint64_t por		: 1;
-		uint64_t enable		: 1;
-		uint64_t prst		: 1;
-		uint64_t hrst		: 1;
-		uint64_t divide		: 3;
-	} cn50xx;
-	struct cvmx_usbnx_clk_ctl_cn50xx cn52xx;
-	struct cvmx_usbnx_clk_ctl_cn50xx cn56xx;
 };
 
 /**
diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 1859c050b918..a5c4622fcf03 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -842,10 +842,10 @@ static int cvmx_usb_initialize(struct cvmx_usb_state *usb,
 			usbn_clk_ctl.cn31xx.p_xenbn = 0;
 		} else if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN50XX))
 			/* From CN56XX,CN50XX manual */
-			usbn_clk_ctl.cn56xx.p_rtype = 2;
+			usbn_clk_ctl.s.p_rtype = 2;
 		else
 			/* From CN52XX manual */
-			usbn_clk_ctl.cn52xx.p_rtype = 1;
+			usbn_clk_ctl.s.p_rtype = 1;
 
 		switch (flags & CVMX_USB_INITIALIZE_FLAGS_CLOCK_MHZ_MASK) {
 		case CVMX_USB_INITIALIZE_FLAGS_CLOCK_12MHZ:
@@ -869,10 +869,10 @@ static int cvmx_usb_initialize(struct cvmx_usb_state *usb,
 			usbn_clk_ctl.cn31xx.p_xenbn = 1;
 		} else if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN50XX))
 			/* From CN56XX,CN50XX manual */
-			usbn_clk_ctl.cn56xx.p_rtype = 0;
+			usbn_clk_ctl.s.p_rtype = 0;
 		else
 			/* From CN52XX manual */
-			usbn_clk_ctl.cn52xx.p_rtype = 0;
+			usbn_clk_ctl.s.p_rtype = 0;
 
 		usbn_clk_ctl.s.p_c_sel = 0;
 	}
-- 
cgit 


From 7d7bc26b1d80acadf6eacb312b06f8f4005b2173 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Thu, 10 Oct 2013 23:25:29 +0300
Subject: staging: octeon-usb: CN3xxx: program p_xenbn and p_rclk through
 p_rtype

Do the clock setup through p_rtype on all OCTEONs. This enables to get
rid of duplicated register definitions.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/cvmx-usbnx-defs.h | 111 ++++-----------------------
 drivers/staging/octeon-usb/octeon-hcd.c      |  22 ++----
 2 files changed, 25 insertions(+), 108 deletions(-)

diff --git a/drivers/staging/octeon-usb/cvmx-usbnx-defs.h b/drivers/staging/octeon-usb/cvmx-usbnx-defs.h
index 87e9f330e52f..6a1c777675e8 100644
--- a/drivers/staging/octeon-usb/cvmx-usbnx-defs.h
+++ b/drivers/staging/octeon-usb/cvmx-usbnx-defs.h
@@ -93,16 +93,23 @@ union cvmx_usbnx_clk_ctl {
 	 *	suspend.
 	 *	The value of this field must be set while POR is
 	 *	active.
-	 * @p_rtype: PHY reference clock type (CN50XX/CN52XX/CN56XX only)
-	 *	'0' The USB-PHY uses a 12MHz crystal as a clock
-	 *	source at the USB_XO and USB_XI pins
-	 *	'1' Reserved
-	 *	'2' The USB_PHY uses 12/24/48MHz 2.5V board clock
-	 *	at the USB_XO pin. USB_XI should be tied to
-	 *	ground in this case.
-	 *	'3' Reserved
-	 *	(bit 14 was P_XENBN on 3xxx)
-	 *	(bit 15 was P_RCLK on 3xxx)
+	 * @p_rtype: PHY reference clock type
+	 *	On CN50XX/CN52XX/CN56XX the values are:
+	 *		'0' The USB-PHY uses a 12MHz crystal as a clock source
+	 *		    at the USB_XO and USB_XI pins.
+	 *		'1' Reserved.
+	 *		'2' The USB_PHY uses 12/24/48MHz 2.5V board clock at the
+	 *		    USB_XO pin. USB_XI should be tied to ground in this
+	 *		    case.
+	 *		'3' Reserved.
+	 *	On CN3xxx bits 14 and 15 are p_xenbn and p_rclk and values are:
+	 *		'0' Reserved.
+	 *		'1' Reserved.
+	 *		'2' The PHY PLL uses the XO block output as a reference.
+	 *		    The XO block uses an external clock supplied on the
+	 *		    XO pin. USB_XI should be tied to ground for this
+	 *		    usage.
+	 *		'3' The XO block uses the clock from a crystal.
 	 * @p_com_on: '0' Force USB-PHY XO Bias, Bandgap and PLL to
 	 *	remain powered in Suspend Mode.
 	 *	'1' The USB-PHY XO Bias, Bandgap and PLL are
@@ -169,90 +176,6 @@ union cvmx_usbnx_clk_ctl {
 		uint64_t hrst		: 1;
 		uint64_t divide		: 3;
 	} s;
-	/**
-	 * struct cvmx_usbnx_clk_ctl_cn30xx
-	 * @hclk_rst: When this field is '0' the HCLK-DIVIDER used to
-	 *	generate the hclk in the USB Subsystem is held
-	 *	in reset. This bit must be set to '0' before
-	 *	changing the value os DIVIDE in this register.
-	 *	The reset to the HCLK_DIVIDERis also asserted
-	 *	when core reset is asserted.
-	 * @p_x_on: Force USB-PHY on during suspend.
-	 *	'1' USB-PHY XO block is powered-down during
-	 *	suspend.
-	 *	'0' USB-PHY XO block is powered-up during
-	 *	suspend.
-	 *	The value of this field must be set while POR is
-	 *	active.
-	 * @p_rclk: Phy refrence clock enable.
-	 *	'1' The PHY PLL uses the XO block output as a
-	 *	reference.
-	 *	'0' Reserved.
-	 * @p_xenbn: Phy external clock enable.
-	 *	'1' The XO block uses the clock from a crystal.
-	 *	'0' The XO block uses an external clock supplied
-	 *	on the XO pin. USB_XI should be tied to
-	 *	ground for this usage.
-	 * @p_com_on: '0' Force USB-PHY XO Bias, Bandgap and PLL to
-	 *	remain powered in Suspend Mode.
-	 *	'1' The USB-PHY XO Bias, Bandgap and PLL are
-	 *	powered down in suspend mode.
-	 *	The value of this field must be set while POR is
-	 *	active.
-	 * @p_c_sel: Phy clock speed select.
-	 *	Selects the reference clock / crystal frequency.
-	 *	'11': Reserved
-	 *	'10': 48 MHz
-	 *	'01': 24 MHz
-	 *	'00': 12 MHz
-	 *	The value of this field must be set while POR is
-	 *	active.
-	 * @cdiv_byp: Used to enable the bypass input to the USB_CLK_DIV.
-	 * @sd_mode: Scaledown mode for the USBC. Control timing events
-	 *	in the USBC, for normal operation this must be '0'.
-	 * @s_bist: Starts bist on the hclk memories, during the '0'
-	 *	to '1' transition.
-	 * @por: Power On Reset for the PHY.
-	 *	Resets all the PHYS registers and state machines.
-	 * @enable: When '1' allows the generation of the hclk. When
-	 *	'0' the hclk will not be generated.
-	 * @prst: When this field is '0' the reset associated with
-	 *	the phy_clk functionality in the USB Subsystem is
-	 *	help in reset. This bit should not be set to '1'
-	 *	until the time it takes 6 clocks (hclk or phy_clk,
-	 *	whichever is slower) has passed. Under normal
-	 *	operation once this bit is set to '1' it should not
-	 *	be set to '0'.
-	 * @hrst: When this field is '0' the reset associated with
-	 *	the hclk functioanlity in the USB Subsystem is
-	 *	held in reset.This bit should not be set to '1'
-	 *	until 12ms after phy_clk is stable. Under normal
-	 *	operation, once this bit is set to '1' it should
-	 *	not be set to '0'.
-	 * @divide: The 'hclk' used by the USB subsystem is derived
-	 *	from the eclk. The eclk will be divided by the
-	 *	value of this field +1 to determine the hclk
-	 *	frequency. (Also see HRST of this register).
-	 *	The hclk frequency must be less than 125 MHz.
-	 */
-	struct cvmx_usbnx_clk_ctl_cn30xx {
-		uint64_t reserved_18_63	: 46;
-		uint64_t hclk_rst	: 1;
-		uint64_t p_x_on		: 1;
-		uint64_t p_rclk		: 1;
-		uint64_t p_xenbn	: 1;
-		uint64_t p_com_on	: 1;
-		uint64_t p_c_sel	: 2;
-		uint64_t cdiv_byp	: 1;
-		uint64_t sd_mode	: 2;
-		uint64_t s_bist		: 1;
-		uint64_t por		: 1;
-		uint64_t enable		: 1;
-		uint64_t prst		: 1;
-		uint64_t hrst		: 1;
-		uint64_t divide		: 3;
-	} cn30xx;
-	struct cvmx_usbnx_clk_ctl_cn30xx cn31xx;
 };
 
 /**
diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index a5c4622fcf03..2226c7d6066e 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -836,13 +836,11 @@ static int cvmx_usb_initialize(struct cvmx_usb_state *usb,
 		 * source at USB_XO. USB_XI should be tied to GND.
 		 * Most Octeon evaluation boards require this setting
 		 */
-		if (OCTEON_IS_MODEL(OCTEON_CN3XXX)) {
-			/* From CN31XX,CN30XX manual */
-			usbn_clk_ctl.cn31xx.p_rclk  = 1;
-			usbn_clk_ctl.cn31xx.p_xenbn = 0;
-		} else if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN50XX))
-			/* From CN56XX,CN50XX manual */
-			usbn_clk_ctl.s.p_rtype = 2;
+		if (OCTEON_IS_MODEL(OCTEON_CN3XXX) ||
+		    OCTEON_IS_MODEL(OCTEON_CN56XX) ||
+		    OCTEON_IS_MODEL(OCTEON_CN50XX))
+			/* From CN56XX,CN50XX,CN31XX,CN30XX manuals */
+			usbn_clk_ctl.s.p_rtype = 2; /* p_rclk=1 & p_xenbn=0 */
 		else
 			/* From CN52XX manual */
 			usbn_clk_ctl.s.p_rtype = 1;
@@ -863,15 +861,11 @@ static int cvmx_usb_initialize(struct cvmx_usb_state *usb,
 		 * The USB port uses a 12MHz crystal as clock source
 		 * at USB_XO and USB_XI
 		 */
-		if (OCTEON_IS_MODEL(OCTEON_CN3XXX)) {
+		if (OCTEON_IS_MODEL(OCTEON_CN3XXX))
 			/* From CN31XX,CN30XX manual */
-			usbn_clk_ctl.cn31xx.p_rclk  = 1;
-			usbn_clk_ctl.cn31xx.p_xenbn = 1;
-		} else if (OCTEON_IS_MODEL(OCTEON_CN56XX) || OCTEON_IS_MODEL(OCTEON_CN50XX))
-			/* From CN56XX,CN50XX manual */
-			usbn_clk_ctl.s.p_rtype = 0;
+			usbn_clk_ctl.s.p_rtype = 3; /* p_rclk=1 & p_xenbn=1 */
 		else
-			/* From CN52XX manual */
+			/* From CN56XX,CN52XX,CN50XX manuals. */
 			usbn_clk_ctl.s.p_rtype = 0;
 
 		usbn_clk_ctl.s.p_c_sel = 0;
-- 
cgit 


From f121910396a7a1c123efcf9c6a6971c6c75ec377 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Thu, 10 Oct 2013 23:25:30 +0300
Subject: staging: octeon-usb: use a single .h file

Merge USBC and USBN register definitions into a single header
file. Although all HW definitions are purely internal to the driver,
it's better to keep them separate due to the large size of the file.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/cvmx-usbcx-defs.h | 1528 ----------------------
 drivers/staging/octeon-usb/cvmx-usbnx-defs.h |  343 -----
 drivers/staging/octeon-usb/octeon-hcd.c      |    3 +-
 drivers/staging/octeon-usb/octeon-hcd.h      | 1819 ++++++++++++++++++++++++++
 4 files changed, 1820 insertions(+), 1873 deletions(-)
 delete mode 100644 drivers/staging/octeon-usb/cvmx-usbcx-defs.h
 delete mode 100644 drivers/staging/octeon-usb/cvmx-usbnx-defs.h
 create mode 100644 drivers/staging/octeon-usb/octeon-hcd.h

diff --git a/drivers/staging/octeon-usb/cvmx-usbcx-defs.h b/drivers/staging/octeon-usb/cvmx-usbcx-defs.h
deleted file mode 100644
index d349d77bc359..000000000000
--- a/drivers/staging/octeon-usb/cvmx-usbcx-defs.h
+++ /dev/null
@@ -1,1528 +0,0 @@
-/***********************license start***************
- * Copyright (c) 2003-2010  Cavium Networks (support@cavium.com). All rights
- * reserved.
- *
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *
- *   * Redistributions in binary form must reproduce the above
- *     copyright notice, this list of conditions and the following
- *     disclaimer in the documentation and/or other materials provided
- *     with the distribution.
-
- *   * Neither the name of Cavium Networks nor the names of
- *     its contributors may be used to endorse or promote products
- *     derived from this software without specific prior written
- *     permission.
-
- * This Software, including technical data, may be subject to U.S. export
- * control laws, including the U.S. Export Administration Act and its associated
- * regulations, and may be subject to export or import  regulations in other
- * countries.
-
- * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
- * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR
- * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
- * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION
- * OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
- * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
- * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
- * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
- * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE  RISK ARISING OUT OF USE OR
- * PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
- ***********************license end**************************************/
-
-
-/**
- * cvmx-usbcx-defs.h
- *
- * Configuration and status register (CSR) type definitions for
- * Octeon usbcx.
- *
- */
-#ifndef __CVMX_USBCX_TYPEDEFS_H__
-#define __CVMX_USBCX_TYPEDEFS_H__
-
-#define CVMX_USBCXBASE 0x00016F0010000000ull
-#define CVMX_USBCXREG1(reg, bid) \
-	(CVMX_ADD_IO_SEG(CVMX_USBCXBASE | reg) + \
-	 ((bid) & 1) * 0x100000000000ull)
-#define CVMX_USBCXREG2(reg, bid, off) \
-	(CVMX_ADD_IO_SEG(CVMX_USBCXBASE | reg) + \
-	 (((off) & 7) + ((bid) & 1) * 0x8000000000ull) * 32)
-
-#define CVMX_USBCX_GAHBCFG(bid)		CVMX_USBCXREG1(0x008, bid)
-#define CVMX_USBCX_GHWCFG3(bid)		CVMX_USBCXREG1(0x04c, bid)
-#define CVMX_USBCX_GINTMSK(bid)		CVMX_USBCXREG1(0x018, bid)
-#define CVMX_USBCX_GINTSTS(bid)		CVMX_USBCXREG1(0x014, bid)
-#define CVMX_USBCX_GNPTXFSIZ(bid)	CVMX_USBCXREG1(0x028, bid)
-#define CVMX_USBCX_GNPTXSTS(bid)	CVMX_USBCXREG1(0x02c, bid)
-#define CVMX_USBCX_GOTGCTL(bid)		CVMX_USBCXREG1(0x000, bid)
-#define CVMX_USBCX_GRSTCTL(bid)		CVMX_USBCXREG1(0x010, bid)
-#define CVMX_USBCX_GRXFSIZ(bid)		CVMX_USBCXREG1(0x024, bid)
-#define CVMX_USBCX_GRXSTSPH(bid)	CVMX_USBCXREG1(0x020, bid)
-#define CVMX_USBCX_GUSBCFG(bid)		CVMX_USBCXREG1(0x00c, bid)
-#define CVMX_USBCX_HAINT(bid)		CVMX_USBCXREG1(0x414, bid)
-#define CVMX_USBCX_HAINTMSK(bid)	CVMX_USBCXREG1(0x418, bid)
-#define CVMX_USBCX_HCCHARX(off, bid)	CVMX_USBCXREG2(0x500, bid, off)
-#define CVMX_USBCX_HCFG(bid)		CVMX_USBCXREG1(0x400, bid)
-#define CVMX_USBCX_HCINTMSKX(off, bid)	CVMX_USBCXREG2(0x50c, bid, off)
-#define CVMX_USBCX_HCINTX(off, bid)	CVMX_USBCXREG2(0x508, bid, off)
-#define CVMX_USBCX_HCSPLTX(off, bid)	CVMX_USBCXREG2(0x504, bid, off)
-#define CVMX_USBCX_HCTSIZX(off, bid)	CVMX_USBCXREG2(0x510, bid, off)
-#define CVMX_USBCX_HFIR(bid)		CVMX_USBCXREG1(0x404, bid)
-#define CVMX_USBCX_HFNUM(bid)		CVMX_USBCXREG1(0x408, bid)
-#define CVMX_USBCX_HPRT(bid)		CVMX_USBCXREG1(0x440, bid)
-#define CVMX_USBCX_HPTXFSIZ(bid)	CVMX_USBCXREG1(0x100, bid)
-#define CVMX_USBCX_HPTXSTS(bid)		CVMX_USBCXREG1(0x410, bid)
-
-/**
- * cvmx_usbc#_gahbcfg
- *
- * Core AHB Configuration Register (GAHBCFG)
- *
- * This register can be used to configure the core after power-on or a change in
- * mode of operation. This register mainly contains AHB system-related
- * configuration parameters. The AHB is the processor interface to the O2P USB
- * core. In general, software need not know about this interface except to
- * program the values as specified.
- *
- * The application must program this register as part of the O2P USB core
- * initialization. Do not change this register after the initial programming.
- */
-union cvmx_usbcx_gahbcfg {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_gahbcfg_s
-	 * @ptxfemplvl: Periodic TxFIFO Empty Level (PTxFEmpLvl)
-	 *	Software should set this bit to 0x1.
-	 *	Indicates when the Periodic TxFIFO Empty Interrupt bit in the
-	 *	Core Interrupt register (GINTSTS.PTxFEmp) is triggered. This
-	 *	bit is used only in Slave mode.
-	 *	* 1'b0: GINTSTS.PTxFEmp interrupt indicates that the Periodic
-	 *	TxFIFO is half empty
-	 *	* 1'b1: GINTSTS.PTxFEmp interrupt indicates that the Periodic
-	 *	TxFIFO is completely empty
-	 * @nptxfemplvl: Non-Periodic TxFIFO Empty Level (NPTxFEmpLvl)
-	 *	Software should set this bit to 0x1.
-	 *	Indicates when the Non-Periodic TxFIFO Empty Interrupt bit in
-	 *	the Core Interrupt register (GINTSTS.NPTxFEmp) is triggered.
-	 *	This bit is used only in Slave mode.
-	 *	* 1'b0: GINTSTS.NPTxFEmp interrupt indicates that the Non-
-	 *	Periodic TxFIFO is half empty
-	 *	* 1'b1: GINTSTS.NPTxFEmp interrupt indicates that the Non-
-	 *	Periodic TxFIFO is completely empty
-	 * @dmaen: DMA Enable (DMAEn)
-	 *	* 1'b0: Core operates in Slave mode
-	 *	* 1'b1: Core operates in a DMA mode
-	 * @hbstlen: Burst Length/Type (HBstLen)
-	 *	This field has not effect and should be left as 0x0.
-	 * @glblintrmsk: Global Interrupt Mask (GlblIntrMsk)
-	 *	Software should set this field to 0x1.
-	 *	The application uses this bit to mask or unmask the interrupt
-	 *	line assertion to itself. Irrespective of this bit's setting,
-	 *	the interrupt status registers are updated by the core.
-	 *	* 1'b0: Mask the interrupt assertion to the application.
-	 *	* 1'b1: Unmask the interrupt assertion to the application.
-	 */
-	struct cvmx_usbcx_gahbcfg_s {
-		uint32_t reserved_9_31	: 23;
-		uint32_t ptxfemplvl	: 1;
-		uint32_t nptxfemplvl	: 1;
-		uint32_t reserved_6_6	: 1;
-		uint32_t dmaen		: 1;
-		uint32_t hbstlen	: 4;
-		uint32_t glblintrmsk	: 1;
-	} s;
-};
-
-/**
- * cvmx_usbc#_ghwcfg3
- *
- * User HW Config3 Register (GHWCFG3)
- *
- * This register contains the configuration options of the O2P USB core.
- */
-union cvmx_usbcx_ghwcfg3 {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_ghwcfg3_s
-	 * @dfifodepth: DFIFO Depth (DfifoDepth)
-	 *	This value is in terms of 32-bit words.
-	 *	* Minimum value is 32
-	 *	* Maximum value is 32768
-	 * @ahbphysync: AHB and PHY Synchronous (AhbPhySync)
-	 *	Indicates whether AHB and PHY clocks are synchronous to
-	 *	each other.
-	 *	* 1'b0: No
-	 *	* 1'b1: Yes
-	 *	This bit is tied to 1.
-	 * @rsttype: Reset Style for Clocked always Blocks in RTL (RstType)
-	 *	* 1'b0: Asynchronous reset is used in the core
-	 *	* 1'b1: Synchronous reset is used in the core
-	 * @optfeature: Optional Features Removed (OptFeature)
-	 *	Indicates whether the User ID register, GPIO interface ports,
-	 *	and SOF toggle and counter ports were removed for gate count
-	 *	optimization.
-	 * @vendor_control_interface_support: Vendor Control Interface Support
-	 *	* 1'b0: Vendor Control Interface is not available on the core.
-	 *	* 1'b1: Vendor Control Interface is available.
-	 * @i2c_selection: I2C Selection
-	 *	* 1'b0: I2C Interface is not available on the core.
-	 *	* 1'b1: I2C Interface is available on the core.
-	 * @otgen: OTG Function Enabled (OtgEn)
-	 *	The application uses this bit to indicate the O2P USB core's
-	 *	OTG capabilities.
-	 *	* 1'b0: Not OTG capable
-	 *	* 1'b1: OTG Capable
-	 * @pktsizewidth: Width of Packet Size Counters (PktSizeWidth)
-	 *	* 3'b000: 4 bits
-	 *	* 3'b001: 5 bits
-	 *	* 3'b010: 6 bits
-	 *	* 3'b011: 7 bits
-	 *	* 3'b100: 8 bits
-	 *	* 3'b101: 9 bits
-	 *	* 3'b110: 10 bits
-	 *	* Others: Reserved
-	 * @xfersizewidth: Width of Transfer Size Counters (XferSizeWidth)
-	 *	* 4'b0000: 11 bits
-	 *	* 4'b0001: 12 bits
-	 *	- ...
-	 *	* 4'b1000: 19 bits
-	 *	* Others: Reserved
-	 */
-	struct cvmx_usbcx_ghwcfg3_s {
-		uint32_t dfifodepth				: 16;
-		uint32_t reserved_13_15				: 3;
-		uint32_t ahbphysync				: 1;
-		uint32_t rsttype				: 1;
-		uint32_t optfeature				: 1;
-		uint32_t vendor_control_interface_support	: 1;
-		uint32_t i2c_selection				: 1;
-		uint32_t otgen					: 1;
-		uint32_t pktsizewidth				: 3;
-		uint32_t xfersizewidth				: 4;
-	} s;
-};
-
-/**
- * cvmx_usbc#_gintmsk
- *
- * Core Interrupt Mask Register (GINTMSK)
- *
- * This register works with the Core Interrupt register to interrupt the
- * application. When an interrupt bit is masked, the interrupt associated with
- * that bit will not be generated. However, the Core Interrupt (GINTSTS)
- * register bit corresponding to that interrupt will still be set.
- * Mask interrupt: 1'b0, Unmask interrupt: 1'b1
- */
-union cvmx_usbcx_gintmsk {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_gintmsk_s
-	 * @wkupintmsk: Resume/Remote Wakeup Detected Interrupt Mask
-	 *	(WkUpIntMsk)
-	 * @sessreqintmsk: Session Request/New Session Detected Interrupt Mask
-	 *	(SessReqIntMsk)
-	 * @disconnintmsk: Disconnect Detected Interrupt Mask (DisconnIntMsk)
-	 * @conidstschngmsk: Connector ID Status Change Mask (ConIDStsChngMsk)
-	 * @ptxfempmsk: Periodic TxFIFO Empty Mask (PTxFEmpMsk)
-	 * @hchintmsk: Host Channels Interrupt Mask (HChIntMsk)
-	 * @prtintmsk: Host Port Interrupt Mask (PrtIntMsk)
-	 * @fetsuspmsk: Data Fetch Suspended Mask (FetSuspMsk)
-	 * @incomplpmsk: Incomplete Periodic Transfer Mask (incomplPMsk)
-	 *	Incomplete Isochronous OUT Transfer Mask
-	 *	(incompISOOUTMsk)
-	 * @incompisoinmsk: Incomplete Isochronous IN Transfer Mask
-	 *		    (incompISOINMsk)
-	 * @oepintmsk: OUT Endpoints Interrupt Mask (OEPIntMsk)
-	 * @inepintmsk: IN Endpoints Interrupt Mask (INEPIntMsk)
-	 * @epmismsk: Endpoint Mismatch Interrupt Mask (EPMisMsk)
-	 * @eopfmsk: End of Periodic Frame Interrupt Mask (EOPFMsk)
-	 * @isooutdropmsk: Isochronous OUT Packet Dropped Interrupt Mask
-	 *	(ISOOutDropMsk)
-	 * @enumdonemsk: Enumeration Done Mask (EnumDoneMsk)
-	 * @usbrstmsk: USB Reset Mask (USBRstMsk)
-	 * @usbsuspmsk: USB Suspend Mask (USBSuspMsk)
-	 * @erlysuspmsk: Early Suspend Mask (ErlySuspMsk)
-	 * @i2cint: I2C Interrupt Mask (I2CINT)
-	 * @ulpickintmsk: ULPI Carkit Interrupt Mask (ULPICKINTMsk)
-	 *	I2C Carkit Interrupt Mask (I2CCKINTMsk)
-	 * @goutnakeffmsk: Global OUT NAK Effective Mask (GOUTNakEffMsk)
-	 * @ginnakeffmsk: Global Non-Periodic IN NAK Effective Mask
-	 *		  (GINNakEffMsk)
-	 * @nptxfempmsk: Non-Periodic TxFIFO Empty Mask (NPTxFEmpMsk)
-	 * @rxflvlmsk: Receive FIFO Non-Empty Mask (RxFLvlMsk)
-	 * @sofmsk: Start of (micro)Frame Mask (SofMsk)
-	 * @otgintmsk: OTG Interrupt Mask (OTGIntMsk)
-	 * @modemismsk: Mode Mismatch Interrupt Mask (ModeMisMsk)
-	 */
-	struct cvmx_usbcx_gintmsk_s {
-		uint32_t wkupintmsk		: 1;
-		uint32_t sessreqintmsk		: 1;
-		uint32_t disconnintmsk		: 1;
-		uint32_t conidstschngmsk	: 1;
-		uint32_t reserved_27_27		: 1;
-		uint32_t ptxfempmsk		: 1;
-		uint32_t hchintmsk		: 1;
-		uint32_t prtintmsk		: 1;
-		uint32_t reserved_23_23		: 1;
-		uint32_t fetsuspmsk		: 1;
-		uint32_t incomplpmsk		: 1;
-		uint32_t incompisoinmsk		: 1;
-		uint32_t oepintmsk		: 1;
-		uint32_t inepintmsk		: 1;
-		uint32_t epmismsk		: 1;
-		uint32_t reserved_16_16		: 1;
-		uint32_t eopfmsk		: 1;
-		uint32_t isooutdropmsk		: 1;
-		uint32_t enumdonemsk		: 1;
-		uint32_t usbrstmsk		: 1;
-		uint32_t usbsuspmsk		: 1;
-		uint32_t erlysuspmsk		: 1;
-		uint32_t i2cint			: 1;
-		uint32_t ulpickintmsk		: 1;
-		uint32_t goutnakeffmsk		: 1;
-		uint32_t ginnakeffmsk		: 1;
-		uint32_t nptxfempmsk		: 1;
-		uint32_t rxflvlmsk		: 1;
-		uint32_t sofmsk			: 1;
-		uint32_t otgintmsk		: 1;
-		uint32_t modemismsk		: 1;
-		uint32_t reserved_0_0		: 1;
-	} s;
-};
-
-/**
- * cvmx_usbc#_gintsts
- *
- * Core Interrupt Register (GINTSTS)
- *
- * This register interrupts the application for system-level events in the
- * current mode of operation (Device mode or Host mode). It is shown in
- * Interrupt. Some of the bits in this register are valid only in Host mode,
- * while others are valid in Device mode only. This register also indicates the
- * current mode of operation. In order to clear the interrupt status bits of
- * type R_SS_WC, the application must write 1'b1 into the bit. The FIFO status
- * interrupts are read only; once software reads from or writes to the FIFO
- * while servicing these interrupts, FIFO interrupt conditions are cleared
- * automatically.
- */
-union cvmx_usbcx_gintsts {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_gintsts_s
-	 * @wkupint: Resume/Remote Wakeup Detected Interrupt (WkUpInt)
-	 *	In Device mode, this interrupt is asserted when a resume is
-	 *	detected on the USB. In Host mode, this interrupt is asserted
-	 *	when a remote wakeup is detected on the USB.
-	 *	For more information on how to use this interrupt, see "Partial
-	 *	Power-Down and Clock Gating Programming Model" on
-	 *	page 353.
-	 * @sessreqint: Session Request/New Session Detected Interrupt
-	 *		(SessReqInt)
-	 *	In Host mode, this interrupt is asserted when a session request
-	 *	is detected from the device. In Device mode, this interrupt is
-	 *	asserted when the utmiotg_bvalid signal goes high.
-	 *	For more information on how to use this interrupt, see "Partial
-	 *	Power-Down and Clock Gating Programming Model" on
-	 *	page 353.
-	 * @disconnint: Disconnect Detected Interrupt (DisconnInt)
-	 *	Asserted when a device disconnect is detected.
-	 * @conidstschng: Connector ID Status Change (ConIDStsChng)
-	 *	The core sets this bit when there is a change in connector ID
-	 *	status.
-	 * @ptxfemp: Periodic TxFIFO Empty (PTxFEmp)
-	 *	Asserted when the Periodic Transmit FIFO is either half or
-	 *	completely empty and there is space for at least one entry to be
-	 *	written in the Periodic Request Queue. The half or completely
-	 *	empty status is determined by the Periodic TxFIFO Empty Level
-	 *	bit in the Core AHB Configuration register
-	 *	(GAHBCFG.PTxFEmpLvl).
-	 * @hchint: Host Channels Interrupt (HChInt)
-	 *	The core sets this bit to indicate that an interrupt is pending
-	 *	on one of the channels of the core (in Host mode). The
-	 *	application must read the Host All Channels Interrupt (HAINT)
-	 *	register to determine the exact number of the channel on which
-	 *	the interrupt occurred, and then read the corresponding Host
-	 *	Channel-n Interrupt (HCINTn) register to determine the exact
-	 *	cause of the interrupt. The application must clear the
-	 *	appropriate status bit in the HCINTn register to clear this bit.
-	 * @prtint: Host Port Interrupt (PrtInt)
-	 *	The core sets this bit to indicate a change in port status of
-	 *	one of the O2P USB core ports in Host mode. The application must
-	 *	read the Host Port Control and Status (HPRT) register to
-	 *	determine the exact event that caused this interrupt. The
-	 *	application must clear the appropriate status bit in the Host
-	 *	Port Control and Status register to clear this bit.
-	 * @fetsusp: Data Fetch Suspended (FetSusp)
-	 *	This interrupt is valid only in DMA mode. This interrupt
-	 *	indicates that the core has stopped fetching data for IN
-	 *	endpoints due to the unavailability of TxFIFO space or Request
-	 *	Queue space. This interrupt is used by the application for an
-	 *	endpoint mismatch algorithm.
-	 * @incomplp: Incomplete Periodic Transfer (incomplP)
-	 *	In Host mode, the core sets this interrupt bit when there are
-	 *	incomplete periodic transactions still pending which are
-	 *	scheduled for the current microframe.
-	 *	Incomplete Isochronous OUT Transfer (incompISOOUT)
-	 *	The Device mode, the core sets this interrupt to indicate that
-	 *	there is at least one isochronous OUT endpoint on which the
-	 *	transfer is not completed in the current microframe. This
-	 *	interrupt is asserted along with the End of Periodic Frame
-	 *	Interrupt (EOPF) bit in this register.
-	 * @incompisoin: Incomplete Isochronous IN Transfer (incompISOIN)
-	 *	The core sets this interrupt to indicate that there is at least
-	 *	one isochronous IN endpoint on which the transfer is not
-	 *	completed in the current microframe. This interrupt is asserted
-	 *	along with the End of Periodic Frame Interrupt (EOPF) bit in
-	 *	this register.
-	 * @oepint: OUT Endpoints Interrupt (OEPInt)
-	 *	The core sets this bit to indicate that an interrupt is pending
-	 *	on one of the OUT endpoints of the core (in Device mode). The
-	 *	application must read the Device All Endpoints Interrupt
-	 *	(DAINT) register to determine the exact number of the OUT
-	 *	endpoint on which the interrupt occurred, and then read the
-	 *	corresponding Device OUT Endpoint-n Interrupt (DOEPINTn)
-	 *	register to determine the exact cause of the interrupt. The
-	 *	application must clear the appropriate status bit in the
-	 *	corresponding DOEPINTn register to clear this bit.
-	 * @iepint: IN Endpoints Interrupt (IEPInt)
-	 *	The core sets this bit to indicate that an interrupt is pending
-	 *	on one of the IN endpoints of the core (in Device mode). The
-	 *	application must read the Device All Endpoints Interrupt
-	 *	(DAINT) register to determine the exact number of the IN
-	 *	endpoint on which the interrupt occurred, and then read the
-	 *	corresponding Device IN Endpoint-n Interrupt (DIEPINTn)
-	 *	register to determine the exact cause of the interrupt. The
-	 *	application must clear the appropriate status bit in the
-	 *	corresponding DIEPINTn register to clear this bit.
-	 * @epmis: Endpoint Mismatch Interrupt (EPMis)
-	 *	Indicates that an IN token has been received for a non-periodic
-	 *	endpoint, but the data for another endpoint is present in the
-	 *	top of the Non-Periodic Transmit FIFO and the IN endpoint
-	 *	mismatch count programmed by the application has expired.
-	 * @eopf: End of Periodic Frame Interrupt (EOPF)
-	 *	Indicates that the period specified in the Periodic Frame
-	 *	Interval field of the Device Configuration register
-	 *	(DCFG.PerFrInt) has been reached in the current microframe.
-	 * @isooutdrop: Isochronous OUT Packet Dropped Interrupt (ISOOutDrop)
-	 *	The core sets this bit when it fails to write an isochronous OUT
-	 *	packet into the RxFIFO because the RxFIFO doesn't have
-	 *	enough space to accommodate a maximum packet size packet
-	 *	for the isochronous OUT endpoint.
-	 * @enumdone: Enumeration Done (EnumDone)
-	 *	The core sets this bit to indicate that speed enumeration is
-	 *	complete. The application must read the Device Status (DSTS)
-	 *	register to obtain the enumerated speed.
-	 * @usbrst: USB Reset (USBRst)
-	 *	The core sets this bit to indicate that a reset is detected on
-	 *	the USB.
-	 * @usbsusp: USB Suspend (USBSusp)
-	 *	The core sets this bit to indicate that a suspend was detected
-	 *	on the USB. The core enters the Suspended state when there
-	 *	is no activity on the phy_line_state_i signal for an extended
-	 *	period of time.
-	 * @erlysusp: Early Suspend (ErlySusp)
-	 *	The core sets this bit to indicate that an Idle state has been
-	 *	detected on the USB for 3 ms.
-	 * @i2cint: I2C Interrupt (I2CINT)
-	 *	This bit is always 0x0.
-	 * @ulpickint: ULPI Carkit Interrupt (ULPICKINT)
-	 *	This bit is always 0x0.
-	 * @goutnakeff: Global OUT NAK Effective (GOUTNakEff)
-	 *	Indicates that the Set Global OUT NAK bit in the Device Control
-	 *	register (DCTL.SGOUTNak), set by the application, has taken
-	 *	effect in the core. This bit can be cleared by writing the Clear
-	 *	Global OUT NAK bit in the Device Control register
-	 *	(DCTL.CGOUTNak).
-	 * @ginnakeff: Global IN Non-Periodic NAK Effective (GINNakEff)
-	 *	Indicates that the Set Global Non-Periodic IN NAK bit in the
-	 *	Device Control register (DCTL.SGNPInNak), set by the
-	 *	application, has taken effect in the core. That is, the core has
-	 *	sampled the Global IN NAK bit set by the application. This bit
-	 *	can be cleared by clearing the Clear Global Non-Periodic IN
-	 *	NAK bit in the Device Control register (DCTL.CGNPInNak).
-	 *	This interrupt does not necessarily mean that a NAK handshake
-	 *	is sent out on the USB. The STALL bit takes precedence over
-	 *	the NAK bit.
-	 * @nptxfemp: Non-Periodic TxFIFO Empty (NPTxFEmp)
-	 *	This interrupt is asserted when the Non-Periodic TxFIFO is
-	 *	either half or completely empty, and there is space for at least
-	 *	one entry to be written to the Non-Periodic Transmit Request
-	 *	Queue. The half or completely empty status is determined by
-	 *	the Non-Periodic TxFIFO Empty Level bit in the Core AHB
-	 *	Configuration register (GAHBCFG.NPTxFEmpLvl).
-	 * @rxflvl: RxFIFO Non-Empty (RxFLvl)
-	 *	Indicates that there is at least one packet pending to be read
-	 *	from the RxFIFO.
-	 * @sof: Start of (micro)Frame (Sof)
-	 *	In Host mode, the core sets this bit to indicate that an SOF
-	 *	(FS), micro-SOF (HS), or Keep-Alive (LS) is transmitted on the
-	 *	USB. The application must write a 1 to this bit to clear the
-	 *	interrupt.
-	 *	In Device mode, in the core sets this bit to indicate that an
-	 *	SOF token has been received on the USB. The application can read
-	 *	the Device Status register to get the current (micro)frame
-	 *	number. This interrupt is seen only when the core is operating
-	 *	at either HS or FS.
-	 * @otgint: OTG Interrupt (OTGInt)
-	 *	The core sets this bit to indicate an OTG protocol event. The
-	 *	application must read the OTG Interrupt Status (GOTGINT)
-	 *	register to determine the exact event that caused this
-	 *	interrupt. The application must clear the appropriate status bit
-	 *	in the GOTGINT register to clear this bit.
-	 * @modemis: Mode Mismatch Interrupt (ModeMis)
-	 *	The core sets this bit when the application is trying to access:
-	 *	* A Host mode register, when the core is operating in Device
-	 *	mode
-	 *	* A Device mode register, when the core is operating in Host
-	 *	mode
-	 *	The register access is completed on the AHB with an OKAY
-	 *	response, but is ignored by the core internally and doesn't
-	 *	affect the operation of the core.
-	 * @curmod: Current Mode of Operation (CurMod)
-	 *	Indicates the current mode of operation.
-	 *	* 1'b0: Device mode
-	 *	* 1'b1: Host mode
-	 */
-	struct cvmx_usbcx_gintsts_s {
-		uint32_t wkupint	: 1;
-		uint32_t sessreqint	: 1;
-		uint32_t disconnint	: 1;
-		uint32_t conidstschng	: 1;
-		uint32_t reserved_27_27	: 1;
-		uint32_t ptxfemp	: 1;
-		uint32_t hchint		: 1;
-		uint32_t prtint		: 1;
-		uint32_t reserved_23_23	: 1;
-		uint32_t fetsusp	: 1;
-		uint32_t incomplp	: 1;
-		uint32_t incompisoin	: 1;
-		uint32_t oepint		: 1;
-		uint32_t iepint		: 1;
-		uint32_t epmis		: 1;
-		uint32_t reserved_16_16	: 1;
-		uint32_t eopf		: 1;
-		uint32_t isooutdrop	: 1;
-		uint32_t enumdone	: 1;
-		uint32_t usbrst		: 1;
-		uint32_t usbsusp	: 1;
-		uint32_t erlysusp	: 1;
-		uint32_t i2cint		: 1;
-		uint32_t ulpickint	: 1;
-		uint32_t goutnakeff	: 1;
-		uint32_t ginnakeff	: 1;
-		uint32_t nptxfemp	: 1;
-		uint32_t rxflvl		: 1;
-		uint32_t sof		: 1;
-		uint32_t otgint		: 1;
-		uint32_t modemis	: 1;
-		uint32_t curmod		: 1;
-	} s;
-};
-
-/**
- * cvmx_usbc#_gnptxfsiz
- *
- * Non-Periodic Transmit FIFO Size Register (GNPTXFSIZ)
- *
- * The application can program the RAM size and the memory start address for the
- * Non-Periodic TxFIFO.
- */
-union cvmx_usbcx_gnptxfsiz {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_gnptxfsiz_s
-	 * @nptxfdep: Non-Periodic TxFIFO Depth (NPTxFDep)
-	 *	This value is in terms of 32-bit words.
-	 *	Minimum value is 16
-	 *	Maximum value is 32768
-	 * @nptxfstaddr: Non-Periodic Transmit RAM Start Address (NPTxFStAddr)
-	 *	This field contains the memory start address for Non-Periodic
-	 *	Transmit FIFO RAM.
-	 */
-	struct cvmx_usbcx_gnptxfsiz_s {
-		uint32_t nptxfdep	: 16;
-		uint32_t nptxfstaddr	: 16;
-	} s;
-};
-
-/**
- * cvmx_usbc#_gnptxsts
- *
- * Non-Periodic Transmit FIFO/Queue Status Register (GNPTXSTS)
- *
- * This read-only register contains the free space information for the
- * Non-Periodic TxFIFO and the Non-Periodic Transmit Request Queue.
- */
-union cvmx_usbcx_gnptxsts {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_gnptxsts_s
-	 * @nptxqtop: Top of the Non-Periodic Transmit Request Queue (NPTxQTop)
-	 *	Entry in the Non-Periodic Tx Request Queue that is currently
-	 *	being processed by the MAC.
-	 *	* Bits [30:27]: Channel/endpoint number
-	 *	* Bits [26:25]:
-	 *	- 2'b00: IN/OUT token
-	 *	- 2'b01: Zero-length transmit packet (device IN/host OUT)
-	 *	- 2'b10: PING/CSPLIT token
-	 *	- 2'b11: Channel halt command
-	 *	* Bit [24]: Terminate (last entry for selected channel/endpoint)
-	 * @nptxqspcavail: Non-Periodic Transmit Request Queue Space Available
-	 *	(NPTxQSpcAvail)
-	 *	Indicates the amount of free space available in the Non-
-	 *	Periodic Transmit Request Queue. This queue holds both IN
-	 *	and OUT requests in Host mode. Device mode has only IN
-	 *	requests.
-	 *	* 8'h0: Non-Periodic Transmit Request Queue is full
-	 *	* 8'h1: 1 location available
-	 *	* 8'h2: 2 locations available
-	 *	* n: n locations available (0..8)
-	 *	* Others: Reserved
-	 * @nptxfspcavail: Non-Periodic TxFIFO Space Avail (NPTxFSpcAvail)
-	 *	Indicates the amount of free space available in the Non-
-	 *	Periodic TxFIFO.
-	 *	Values are in terms of 32-bit words.
-	 *	* 16'h0: Non-Periodic TxFIFO is full
-	 *	* 16'h1: 1 word available
-	 *	* 16'h2: 2 words available
-	 *	* 16'hn: n words available (where 0..32768)
-	 *	* 16'h8000: 32768 words available
-	 *	* Others: Reserved
-	 */
-	struct cvmx_usbcx_gnptxsts_s {
-		uint32_t reserved_31_31	: 1;
-		uint32_t nptxqtop	: 7;
-		uint32_t nptxqspcavail	: 8;
-		uint32_t nptxfspcavail	: 16;
-	} s;
-};
-
-/**
- * cvmx_usbc#_grstctl
- *
- * Core Reset Register (GRSTCTL)
- *
- * The application uses this register to reset various hardware features inside
- * the core.
- */
-union cvmx_usbcx_grstctl {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_grstctl_s
-	 * @ahbidle: AHB Master Idle (AHBIdle)
-	 *	Indicates that the AHB Master State Machine is in the IDLE
-	 *	condition.
-	 * @dmareq: DMA Request Signal (DMAReq)
-	 *	Indicates that the DMA request is in progress. Used for debug.
-	 * @txfnum: TxFIFO Number (TxFNum)
-	 *	This is the FIFO number that must be flushed using the TxFIFO
-	 *	Flush bit. This field must not be changed until the core clears
-	 *	the TxFIFO Flush bit.
-	 *	* 5'h0: Non-Periodic TxFIFO flush
-	 *	* 5'h1: Periodic TxFIFO 1 flush in Device mode or Periodic
-	 *	TxFIFO flush in Host mode
-	 *	* 5'h2: Periodic TxFIFO 2 flush in Device mode
-	 *	- ...
-	 *	* 5'hF: Periodic TxFIFO 15 flush in Device mode
-	 *	* 5'h10: Flush all the Periodic and Non-Periodic TxFIFOs in the
-	 *	core
-	 * @txfflsh: TxFIFO Flush (TxFFlsh)
-	 *	This bit selectively flushes a single or all transmit FIFOs, but
-	 *	cannot do so if the core is in the midst of a transaction.
-	 *	The application must only write this bit after checking that the
-	 *	core is neither writing to the TxFIFO nor reading from the
-	 *	TxFIFO.
-	 *	The application must wait until the core clears this bit before
-	 *	performing any operations. This bit takes 8 clocks (of phy_clk
-	 *	or hclk, whichever is slower) to clear.
-	 * @rxfflsh: RxFIFO Flush (RxFFlsh)
-	 *	The application can flush the entire RxFIFO using this bit, but
-	 *	must first ensure that the core is not in the middle of a
-	 *	transaction.
-	 *	The application must only write to this bit after checking that
-	 *	the core is neither reading from the RxFIFO nor writing to the
-	 *	RxFIFO.
-	 *	The application must wait until the bit is cleared before
-	 *	performing any other operations. This bit will take 8 clocks
-	 *	(slowest of PHY or AHB clock) to clear.
-	 * @intknqflsh: IN Token Sequence Learning Queue Flush (INTknQFlsh)
-	 *	The application writes this bit to flush the IN Token Sequence
-	 *	Learning Queue.
-	 * @frmcntrrst: Host Frame Counter Reset (FrmCntrRst)
-	 *	The application writes this bit to reset the (micro)frame number
-	 *	counter inside the core. When the (micro)frame counter is reset,
-	 *	the subsequent SOF sent out by the core will have a
-	 *	(micro)frame number of 0.
-	 * @hsftrst: HClk Soft Reset (HSftRst)
-	 *	The application uses this bit to flush the control logic in the
-	 *	AHB Clock domain. Only AHB Clock Domain pipelines are reset.
-	 *	* FIFOs are not flushed with this bit.
-	 *	* All state machines in the AHB clock domain are reset to the
-	 *	Idle state after terminating the transactions on the AHB,
-	 *	following the protocol.
-	 *	* CSR control bits used by the AHB clock domain state
-	 *	machines are cleared.
-	 *	* To clear this interrupt, status mask bits that control the
-	 *	interrupt status and are generated by the AHB clock domain
-	 *	state machine are cleared.
-	 *	* Because interrupt status bits are not cleared, the application
-	 *	can get the status of any core events that occurred after it set
-	 *	this bit.
-	 *	This is a self-clearing bit that the core clears after all
-	 *	necessary logic is reset in the core. This may take several
-	 *	clocks, depending on the core's current state.
-	 * @csftrst: Core Soft Reset (CSftRst)
-	 *	Resets the hclk and phy_clock domains as follows:
-	 *	* Clears the interrupts and all the CSR registers except the
-	 *	following register bits:
-	 *	- PCGCCTL.RstPdwnModule
-	 *	- PCGCCTL.GateHclk
-	 *	- PCGCCTL.PwrClmp
-	 *	- PCGCCTL.StopPPhyLPwrClkSelclk
-	 *	- GUSBCFG.PhyLPwrClkSel
-	 *	- GUSBCFG.DDRSel
-	 *	- GUSBCFG.PHYSel
-	 *	- GUSBCFG.FSIntf
-	 *	- GUSBCFG.ULPI_UTMI_Sel
-	 *	- GUSBCFG.PHYIf
-	 *	- HCFG.FSLSPclkSel
-	 *	- DCFG.DevSpd
-	 *	* All module state machines (except the AHB Slave Unit) are
-	 *	reset to the IDLE state, and all the transmit FIFOs and the
-	 *	receive FIFO are flushed.
-	 *	* Any transactions on the AHB Master are terminated as soon
-	 *	as possible, after gracefully completing the last data phase of
-	 *	an AHB transfer. Any transactions on the USB are terminated
-	 *	immediately.
-	 *	The application can write to this bit any time it wants to reset
-	 *	the core. This is a self-clearing bit and the core clears this
-	 *	bit after all the necessary logic is reset in the core, which
-	 *	may take several clocks, depending on the current state of the
-	 *	core. Once this bit is cleared software should wait at least 3
-	 *	PHY clocks before doing any access to the PHY domain
-	 *	(synchronization delay). Software should also should check that
-	 *	bit 31 of this register is 1 (AHB Master is IDLE) before
-	 *	starting any operation.
-	 *	Typically software reset is used during software development
-	 *	and also when you dynamically change the PHY selection bits
-	 *	in the USB configuration registers listed above. When you
-	 *	change the PHY, the corresponding clock for the PHY is
-	 *	selected and used in the PHY domain. Once a new clock is
-	 *	selected, the PHY domain has to be reset for proper operation.
-	 */
-	struct cvmx_usbcx_grstctl_s {
-		uint32_t ahbidle	: 1;
-		uint32_t dmareq		: 1;
-		uint32_t reserved_11_29	: 19;
-		uint32_t txfnum		: 5;
-		uint32_t txfflsh	: 1;
-		uint32_t rxfflsh	: 1;
-		uint32_t intknqflsh	: 1;
-		uint32_t frmcntrrst	: 1;
-		uint32_t hsftrst	: 1;
-		uint32_t csftrst	: 1;
-	} s;
-};
-
-/**
- * cvmx_usbc#_grxfsiz
- *
- * Receive FIFO Size Register (GRXFSIZ)
- *
- * The application can program the RAM size that must be allocated to the
- * RxFIFO.
- */
-union cvmx_usbcx_grxfsiz {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_grxfsiz_s
-	 * @rxfdep: RxFIFO Depth (RxFDep)
-	 *	This value is in terms of 32-bit words.
-	 *	* Minimum value is 16
-	 *	* Maximum value is 32768
-	 */
-	struct cvmx_usbcx_grxfsiz_s {
-		uint32_t reserved_16_31	: 16;
-		uint32_t rxfdep		: 16;
-	} s;
-};
-
-/**
- * cvmx_usbc#_grxstsph
- *
- * Receive Status Read and Pop Register, Host Mode (GRXSTSPH)
- *
- * A read to the Receive Status Read and Pop register returns and additionally
- * pops the top data entry out of the RxFIFO.
- * This Description is only valid when the core is in Host Mode. For Device Mode
- * use USBC_GRXSTSPD instead.
- * NOTE: GRXSTSPH and GRXSTSPD are physically the same register and share the
- *	 same offset in the O2P USB core. The offset difference shown in this
- *	 document is for software clarity and is actually ignored by the
- *       hardware.
- */
-union cvmx_usbcx_grxstsph {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_grxstsph_s
-	 * @pktsts: Packet Status (PktSts)
-	 *	Indicates the status of the received packet
-	 *	* 4'b0010: IN data packet received
-	 *	* 4'b0011: IN transfer completed (triggers an interrupt)
-	 *	* 4'b0101: Data toggle error (triggers an interrupt)
-	 *	* 4'b0111: Channel halted (triggers an interrupt)
-	 *	* Others: Reserved
-	 * @dpid: Data PID (DPID)
-	 *	* 2'b00: DATA0
-	 *	* 2'b10: DATA1
-	 *	* 2'b01: DATA2
-	 *	* 2'b11: MDATA
-	 * @bcnt: Byte Count (BCnt)
-	 *	Indicates the byte count of the received IN data packet
-	 * @chnum: Channel Number (ChNum)
-	 *	Indicates the channel number to which the current received
-	 *	packet belongs.
-	 */
-	struct cvmx_usbcx_grxstsph_s {
-		uint32_t reserved_21_31	: 11;
-		uint32_t pktsts		: 4;
-		uint32_t dpid		: 2;
-		uint32_t bcnt		: 11;
-		uint32_t chnum		: 4;
-	} s;
-};
-
-/**
- * cvmx_usbc#_gusbcfg
- *
- * Core USB Configuration Register (GUSBCFG)
- *
- * This register can be used to configure the core after power-on or a changing
- * to Host mode or Device mode. It contains USB and USB-PHY related
- * configuration parameters. The application must program this register before
- * starting any transactions on either the AHB or the USB. Do not make changes
- * to this register after the initial programming.
- */
-union cvmx_usbcx_gusbcfg {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_gusbcfg_s
-	 * @otgi2csel: UTMIFS or I2C Interface Select (OtgI2CSel)
-	 *	This bit is always 0x0.
-	 * @phylpwrclksel: PHY Low-Power Clock Select (PhyLPwrClkSel)
-	 *	Software should set this bit to 0x0.
-	 *	Selects either 480-MHz or 48-MHz (low-power) PHY mode. In
-	 *	FS and LS modes, the PHY can usually operate on a 48-MHz
-	 *	clock to save power.
-	 *	* 1'b0: 480-MHz Internal PLL clock
-	 *	* 1'b1: 48-MHz External Clock
-	 *	In 480 MHz mode, the UTMI interface operates at either 60 or
-	 *	30-MHz, depending upon whether 8- or 16-bit data width is
-	 *	selected. In 48-MHz mode, the UTMI interface operates at 48
-	 *	MHz in FS mode and at either 48 or 6 MHz in LS mode
-	 *	(depending on the PHY vendor).
-	 *	This bit drives the utmi_fsls_low_power core output signal, and
-	 *	is valid only for UTMI+ PHYs.
-	 * @usbtrdtim: USB Turnaround Time (USBTrdTim)
-	 *	Sets the turnaround time in PHY clocks.
-	 *	Specifies the response time for a MAC request to the Packet
-	 *	FIFO Controller (PFC) to fetch data from the DFIFO (SPRAM).
-	 *	This must be programmed to 0x5.
-	 * @hnpcap: HNP-Capable (HNPCap)
-	 *	This bit is always 0x0.
-	 * @srpcap: SRP-Capable (SRPCap)
-	 *	This bit is always 0x0.
-	 * @ddrsel: ULPI DDR Select (DDRSel)
-	 *	Software should set this bit to 0x0.
-	 * @physel: USB 2.0 High-Speed PHY or USB 1.1 Full-Speed Serial
-	 *	Software should set this bit to 0x0.
-	 * @fsintf: Full-Speed Serial Interface Select (FSIntf)
-	 *	Software should set this bit to 0x0.
-	 * @ulpi_utmi_sel: ULPI or UTMI+ Select (ULPI_UTMI_Sel)
-	 *	This bit is always 0x0.
-	 * @phyif: PHY Interface (PHYIf)
-	 *	This bit is always 0x1.
-	 * @toutcal: HS/FS Timeout Calibration (TOutCal)
-	 *	The number of PHY clocks that the application programs in this
-	 *	field is added to the high-speed/full-speed interpacket timeout
-	 *	duration in the core to account for any additional delays
-	 *	introduced by the PHY. This may be required, since the delay
-	 *	introduced by the PHY in generating the linestate condition may
-	 *	vary from one PHY to another.
-	 *	The USB standard timeout value for high-speed operation is
-	 *	736 to 816 (inclusive) bit times. The USB standard timeout
-	 *	value for full-speed operation is 16 to 18 (inclusive) bit
-	 *	times. The application must program this field based on the
-	 *	speed of enumeration. The number of bit times added per PHY
-	 *	clock are:
-	 *	High-speed operation:
-	 *	* One 30-MHz PHY clock = 16 bit times
-	 *	* One 60-MHz PHY clock = 8 bit times
-	 *	Full-speed operation:
-	 *	* One 30-MHz PHY clock = 0.4 bit times
-	 *	* One 60-MHz PHY clock = 0.2 bit times
-	 *	* One 48-MHz PHY clock = 0.25 bit times
-	 */
-	struct cvmx_usbcx_gusbcfg_s {
-		uint32_t reserved_17_31	: 15;
-		uint32_t otgi2csel	: 1;
-		uint32_t phylpwrclksel	: 1;
-		uint32_t reserved_14_14	: 1;
-		uint32_t usbtrdtim	: 4;
-		uint32_t hnpcap		: 1;
-		uint32_t srpcap		: 1;
-		uint32_t ddrsel		: 1;
-		uint32_t physel		: 1;
-		uint32_t fsintf		: 1;
-		uint32_t ulpi_utmi_sel	: 1;
-		uint32_t phyif		: 1;
-		uint32_t toutcal	: 3;
-	} s;
-};
-
-/**
- * cvmx_usbc#_haint
- *
- * Host All Channels Interrupt Register (HAINT)
- *
- * When a significant event occurs on a channel, the Host All Channels Interrupt
- * register interrupts the application using the Host Channels Interrupt bit of
- * the Core Interrupt register (GINTSTS.HChInt). This is shown in Interrupt.
- * There is one interrupt bit per channel, up to a maximum of 16 bits. Bits in
- * this register are set and cleared when the application sets and clears bits
- * in the corresponding Host Channel-n Interrupt register.
- */
-union cvmx_usbcx_haint {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_haint_s
-	 * @haint: Channel Interrupts (HAINT)
-	 *	One bit per channel: Bit 0 for Channel 0, bit 15 for Channel 15
-	 */
-	struct cvmx_usbcx_haint_s {
-		uint32_t reserved_16_31	: 16;
-		uint32_t haint		: 16;
-	} s;
-};
-
-/**
- * cvmx_usbc#_haintmsk
- *
- * Host All Channels Interrupt Mask Register (HAINTMSK)
- *
- * The Host All Channel Interrupt Mask register works with the Host All Channel
- * Interrupt register to interrupt the application when an event occurs on a
- * channel. There is one interrupt mask bit per channel, up to a maximum of 16
- * bits.
- * Mask interrupt: 1'b0 Unmask interrupt: 1'b1
- */
-union cvmx_usbcx_haintmsk {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_haintmsk_s
-	 * @haintmsk: Channel Interrupt Mask (HAINTMsk)
-	 *	One bit per channel: Bit 0 for channel 0, bit 15 for channel 15
-	 */
-	struct cvmx_usbcx_haintmsk_s {
-		uint32_t reserved_16_31	: 16;
-		uint32_t haintmsk	: 16;
-	} s;
-};
-
-/**
- * cvmx_usbc#_hcchar#
- *
- * Host Channel-n Characteristics Register (HCCHAR)
- *
- */
-union cvmx_usbcx_hccharx {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_hccharx_s
-	 * @chena: Channel Enable (ChEna)
-	 *	This field is set by the application and cleared by the OTG
-	 *	host.
-	 *	* 1'b0: Channel disabled
-	 *	* 1'b1: Channel enabled
-	 * @chdis: Channel Disable (ChDis)
-	 *	The application sets this bit to stop transmitting/receiving
-	 *	data on a channel, even before the transfer for that channel is
-	 *	complete. The application must wait for the Channel Disabled
-	 *	interrupt before treating the channel as disabled.
-	 * @oddfrm: Odd Frame (OddFrm)
-	 *	This field is set (reset) by the application to indicate that
-	 *	the OTG host must perform a transfer in an odd (micro)frame.
-	 *	This field is applicable for only periodic (isochronous and
-	 *	interrupt) transactions.
-	 *	* 1'b0: Even (micro)frame
-	 *	* 1'b1: Odd (micro)frame
-	 * @devaddr: Device Address (DevAddr)
-	 *	This field selects the specific device serving as the data
-	 *	source or sink.
-	 * @ec: Multi Count (MC) / Error Count (EC)
-	 *	When the Split Enable bit of the Host Channel-n Split Control
-	 *	register (HCSPLTn.SpltEna) is reset (1'b0), this field indicates
-	 *	to the host the number of transactions that should be executed
-	 *	per microframe for this endpoint.
-	 *	* 2'b00: Reserved. This field yields undefined results.
-	 *	* 2'b01: 1 transaction
-	 *	* 2'b10: 2 transactions to be issued for this endpoint per
-	 *	microframe
-	 *	* 2'b11: 3 transactions to be issued for this endpoint per
-	 *	microframe
-	 *	When HCSPLTn.SpltEna is set (1'b1), this field indicates the
-	 *	number of immediate retries to be performed for a periodic split
-	 *	transactions on transaction errors. This field must be set to at
-	 *	least 2'b01.
-	 * @eptype: Endpoint Type (EPType)
-	 *	Indicates the transfer type selected.
-	 *	* 2'b00: Control
-	 *	* 2'b01: Isochronous
-	 *	* 2'b10: Bulk
-	 *	* 2'b11: Interrupt
-	 * @lspddev: Low-Speed Device (LSpdDev)
-	 *	This field is set by the application to indicate that this
-	 *	channel is communicating to a low-speed device.
-	 * @epdir: Endpoint Direction (EPDir)
-	 *	Indicates whether the transaction is IN or OUT.
-	 *	* 1'b0: OUT
-	 *	* 1'b1: IN
-	 * @epnum: Endpoint Number (EPNum)
-	 *	Indicates the endpoint number on the device serving as the
-	 *	data source or sink.
-	 * @mps: Maximum Packet Size (MPS)
-	 *	Indicates the maximum packet size of the associated endpoint.
-	 */
-	struct cvmx_usbcx_hccharx_s {
-		uint32_t chena		: 1;
-		uint32_t chdis		: 1;
-		uint32_t oddfrm		: 1;
-		uint32_t devaddr	: 7;
-		uint32_t ec		: 2;
-		uint32_t eptype		: 2;
-		uint32_t lspddev	: 1;
-		uint32_t reserved_16_16	: 1;
-		uint32_t epdir		: 1;
-		uint32_t epnum		: 4;
-		uint32_t mps		: 11;
-	} s;
-};
-
-/**
- * cvmx_usbc#_hcfg
- *
- * Host Configuration Register (HCFG)
- *
- * This register configures the core after power-on. Do not make changes to this
- * register after initializing the host.
- */
-union cvmx_usbcx_hcfg {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_hcfg_s
-	 * @fslssupp: FS- and LS-Only Support (FSLSSupp)
-	 *	The application uses this bit to control the core's enumeration
-	 *	speed. Using this bit, the application can make the core
-	 *	enumerate as a FS host, even if the connected device supports
-	 *	HS traffic. Do not make changes to this field after initial
-	 *	programming.
-	 *	* 1'b0: HS/FS/LS, based on the maximum speed supported by
-	 *	the connected device
-	 *	* 1'b1: FS/LS-only, even if the connected device can support HS
-	 * @fslspclksel: FS/LS PHY Clock Select (FSLSPclkSel)
-	 *	When the core is in FS Host mode
-	 *	* 2'b00: PHY clock is running at 30/60 MHz
-	 *	* 2'b01: PHY clock is running at 48 MHz
-	 *	* Others: Reserved
-	 *	When the core is in LS Host mode
-	 *	* 2'b00: PHY clock is running at 30/60 MHz. When the
-	 *	UTMI+/ULPI PHY Low Power mode is not selected, use
-	 *	30/60 MHz.
-	 *	* 2'b01: PHY clock is running at 48 MHz. When the UTMI+
-	 *	PHY Low Power mode is selected, use 48MHz if the PHY
-	 *	supplies a 48 MHz clock during LS mode.
-	 *	* 2'b10: PHY clock is running at 6 MHz. In USB 1.1 FS mode,
-	 *	use 6 MHz when the UTMI+ PHY Low Power mode is
-	 *	selected and the PHY supplies a 6 MHz clock during LS
-	 *	mode. If you select a 6 MHz clock during LS mode, you must
-	 *	do a soft reset.
-	 *	* 2'b11: Reserved
-	 */
-	struct cvmx_usbcx_hcfg_s {
-		uint32_t reserved_3_31	: 29;
-		uint32_t fslssupp	: 1;
-		uint32_t fslspclksel	: 2;
-	} s;
-};
-
-/**
- * cvmx_usbc#_hcint#
- *
- * Host Channel-n Interrupt Register (HCINT)
- *
- * This register indicates the status of a channel with respect to USB- and
- * AHB-related events. The application must read this register when the Host
- * Channels Interrupt bit of the Core Interrupt register (GINTSTS.HChInt) is
- * set. Before the application can read this register, it must first read
- * the Host All Channels Interrupt (HAINT) register to get the exact channel
- * number for the Host Channel-n Interrupt register. The application must clear
- * the appropriate bit in this register to clear the corresponding bits in the
- * HAINT and GINTSTS registers.
- */
-union cvmx_usbcx_hcintx {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_hcintx_s
-	 * @datatglerr: Data Toggle Error (DataTglErr)
-	 * @frmovrun: Frame Overrun (FrmOvrun)
-	 * @bblerr: Babble Error (BblErr)
-	 * @xacterr: Transaction Error (XactErr)
-	 * @nyet: NYET Response Received Interrupt (NYET)
-	 * @ack: ACK Response Received Interrupt (ACK)
-	 * @nak: NAK Response Received Interrupt (NAK)
-	 * @stall: STALL Response Received Interrupt (STALL)
-	 * @ahberr: This bit is always 0x0.
-	 * @chhltd: Channel Halted (ChHltd)
-	 *	Indicates the transfer completed abnormally either because of
-	 *	any USB transaction error or in response to disable request by
-	 *	the application.
-	 * @xfercompl: Transfer Completed (XferCompl)
-	 *	Transfer completed normally without any errors.
-	 */
-	struct cvmx_usbcx_hcintx_s {
-		uint32_t reserved_11_31	: 21;
-		uint32_t datatglerr	: 1;
-		uint32_t frmovrun	: 1;
-		uint32_t bblerr		: 1;
-		uint32_t xacterr	: 1;
-		uint32_t nyet		: 1;
-		uint32_t ack		: 1;
-		uint32_t nak		: 1;
-		uint32_t stall		: 1;
-		uint32_t ahberr		: 1;
-		uint32_t chhltd		: 1;
-		uint32_t xfercompl	: 1;
-	} s;
-};
-
-/**
- * cvmx_usbc#_hcintmsk#
- *
- * Host Channel-n Interrupt Mask Register (HCINTMSKn)
- *
- * This register reflects the mask for each channel status described in the
- * previous section.
- * Mask interrupt: 1'b0 Unmask interrupt: 1'b1
- */
-union cvmx_usbcx_hcintmskx {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_hcintmskx_s
-	 * @datatglerrmsk: Data Toggle Error Mask (DataTglErrMsk)
-	 * @frmovrunmsk: Frame Overrun Mask (FrmOvrunMsk)
-	 * @bblerrmsk: Babble Error Mask (BblErrMsk)
-	 * @xacterrmsk: Transaction Error Mask (XactErrMsk)
-	 * @nyetmsk: NYET Response Received Interrupt Mask (NyetMsk)
-	 * @ackmsk: ACK Response Received Interrupt Mask (AckMsk)
-	 * @nakmsk: NAK Response Received Interrupt Mask (NakMsk)
-	 * @stallmsk: STALL Response Received Interrupt Mask (StallMsk)
-	 * @ahberrmsk: AHB Error Mask (AHBErrMsk)
-	 * @chhltdmsk: Channel Halted Mask (ChHltdMsk)
-	 * @xfercomplmsk: Transfer Completed Mask (XferComplMsk)
-	 */
-	struct cvmx_usbcx_hcintmskx_s {
-		uint32_t reserved_11_31	: 21;
-		uint32_t datatglerrmsk	: 1;
-		uint32_t frmovrunmsk	: 1;
-		uint32_t bblerrmsk	: 1;
-		uint32_t xacterrmsk	: 1;
-		uint32_t nyetmsk	: 1;
-		uint32_t ackmsk		: 1;
-		uint32_t nakmsk		: 1;
-		uint32_t stallmsk	: 1;
-		uint32_t ahberrmsk	: 1;
-		uint32_t chhltdmsk	: 1;
-		uint32_t xfercomplmsk	: 1;
-	} s;
-};
-
-/**
- * cvmx_usbc#_hcsplt#
- *
- * Host Channel-n Split Control Register (HCSPLT)
- *
- */
-union cvmx_usbcx_hcspltx {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_hcspltx_s
-	 * @spltena: Split Enable (SpltEna)
-	 *	The application sets this field to indicate that this channel is
-	 *	enabled to perform split transactions.
-	 * @compsplt: Do Complete Split (CompSplt)
-	 *	The application sets this field to request the OTG host to
-	 *	perform a complete split transaction.
-	 * @xactpos: Transaction Position (XactPos)
-	 *	This field is used to determine whether to send all, first,
-	 *	middle, or last payloads with each OUT transaction.
-	 *	* 2'b11: All. This is the entire data payload is of this
-	 *	transaction (which is less than or equal to 188 bytes).
-	 *	* 2'b10: Begin. This is the first data payload of this
-	 *	transaction (which is larger than 188 bytes).
-	 *	* 2'b00: Mid. This is the middle payload of this transaction
-	 *	(which is larger than 188 bytes).
-	 *	* 2'b01: End. This is the last payload of this transaction
-	 *	(which is larger than 188 bytes).
-	 * @hubaddr: Hub Address (HubAddr)
-	 *	This field holds the device address of the transaction
-	 *	translator's hub.
-	 * @prtaddr: Port Address (PrtAddr)
-	 *	This field is the port number of the recipient transaction
-	 *	translator.
-	 */
-	struct cvmx_usbcx_hcspltx_s {
-		uint32_t spltena	: 1;
-		uint32_t reserved_17_30	: 14;
-		uint32_t compsplt	: 1;
-		uint32_t xactpos	: 2;
-		uint32_t hubaddr	: 7;
-		uint32_t prtaddr	: 7;
-	} s;
-};
-
-/**
- * cvmx_usbc#_hctsiz#
- *
- * Host Channel-n Transfer Size Register (HCTSIZ)
- *
- */
-union cvmx_usbcx_hctsizx {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_hctsizx_s
-	 * @dopng: Do Ping (DoPng)
-	 *	Setting this field to 1 directs the host to do PING protocol.
-	 * @pid: PID (Pid)
-	 *	The application programs this field with the type of PID to use
-	 *	for the initial transaction. The host will maintain this field
-	 *	for the rest of the transfer.
-	 *	* 2'b00: DATA0
-	 *	* 2'b01: DATA2
-	 *	* 2'b10: DATA1
-	 *	* 2'b11: MDATA (non-control)/SETUP (control)
-	 * @pktcnt: Packet Count (PktCnt)
-	 *	This field is programmed by the application with the expected
-	 *	number of packets to be transmitted (OUT) or received (IN).
-	 *	The host decrements this count on every successful
-	 *	transmission or reception of an OUT/IN packet. Once this count
-	 *	reaches zero, the application is interrupted to indicate normal
-	 *	completion.
-	 * @xfersize: Transfer Size (XferSize)
-	 *	For an OUT, this field is the number of data bytes the host will
-	 *	send during the transfer.
-	 *	For an IN, this field is the buffer size that the application
-	 *	has reserved for the transfer. The application is expected to
-	 *	program this field as an integer multiple of the maximum packet
-	 *	size for IN transactions (periodic and non-periodic).
-	 */
-	struct cvmx_usbcx_hctsizx_s {
-		uint32_t dopng		: 1;
-		uint32_t pid		: 2;
-		uint32_t pktcnt		: 10;
-		uint32_t xfersize	: 19;
-	} s;
-};
-
-/**
- * cvmx_usbc#_hfir
- *
- * Host Frame Interval Register (HFIR)
- *
- * This register stores the frame interval information for the current speed to
- * which the O2P USB core has enumerated.
- */
-union cvmx_usbcx_hfir {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_hfir_s
-	 * @frint: Frame Interval (FrInt)
-	 *	The value that the application programs to this field specifies
-	 *	the interval between two consecutive SOFs (FS) or micro-
-	 *	SOFs (HS) or Keep-Alive tokens (HS). This field contains the
-	 *	number of PHY clocks that constitute the required frame
-	 *	interval. The default value set in this field for a FS operation
-	 *	when the PHY clock frequency is 60 MHz. The application can
-	 *	write a value to this register only after the Port Enable bit of
-	 *	the Host Port Control and Status register (HPRT.PrtEnaPort)
-	 *	has been set. If no value is programmed, the core calculates
-	 *	the value based on the PHY clock specified in the FS/LS PHY
-	 *	Clock Select field of the Host Configuration register
-	 *	(HCFG.FSLSPclkSel). Do not change the value of this field
-	 *	after the initial configuration.
-	 *	* 125 us (PHY clock frequency for HS)
-	 *	* 1 ms (PHY clock frequency for FS/LS)
-	 */
-	struct cvmx_usbcx_hfir_s {
-		uint32_t reserved_16_31	: 16;
-		uint32_t frint		: 16;
-	} s;
-};
-
-/**
- * cvmx_usbc#_hfnum
- *
- * Host Frame Number/Frame Time Remaining Register (HFNUM)
- *
- * This register indicates the current frame number.
- * It also indicates the time remaining (in terms of the number of PHY clocks)
- * in the current (micro)frame.
- */
-union cvmx_usbcx_hfnum {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_hfnum_s
-	 * @frrem: Frame Time Remaining (FrRem)
-	 *	Indicates the amount of time remaining in the current
-	 *	microframe (HS) or frame (FS/LS), in terms of PHY clocks.
-	 *	This field decrements on each PHY clock. When it reaches
-	 *	zero, this field is reloaded with the value in the Frame
-	 *	Interval register and a new SOF is transmitted on the USB.
-	 * @frnum: Frame Number (FrNum)
-	 *	This field increments when a new SOF is transmitted on the
-	 *	USB, and is reset to 0 when it reaches 16'h3FFF.
-	 */
-	struct cvmx_usbcx_hfnum_s {
-		uint32_t frrem	: 16;
-		uint32_t frnum	: 16;
-	} s;
-};
-
-/**
- * cvmx_usbc#_hprt
- *
- * Host Port Control and Status Register (HPRT)
- *
- * This register is available in both Host and Device modes.
- * Currently, the OTG Host supports only one port.
- * A single register holds USB port-related information such as USB reset,
- * enable, suspend, resume, connect status, and test mode for each port. The
- * R_SS_WC bits in this register can trigger an interrupt to the application
- * through the Host Port Interrupt bit of the Core Interrupt register
- * (GINTSTS.PrtInt). On a Port Interrupt, the application must read this
- * register and clear the bit that caused the interrupt. For the R_SS_WC bits,
- * the application must write a 1 to the bit to clear the interrupt.
- */
-union cvmx_usbcx_hprt {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_hprt_s
-	 * @prtspd: Port Speed (PrtSpd)
-	 *	Indicates the speed of the device attached to this port.
-	 *	* 2'b00: High speed
-	 *	* 2'b01: Full speed
-	 *	* 2'b10: Low speed
-	 *	* 2'b11: Reserved
-	 * @prttstctl: Port Test Control (PrtTstCtl)
-	 *	The application writes a nonzero value to this field to put
-	 *	the port into a Test mode, and the corresponding pattern is
-	 *	signaled on the port.
-	 *	* 4'b0000: Test mode disabled
-	 *	* 4'b0001: Test_J mode
-	 *	* 4'b0010: Test_K mode
-	 *	* 4'b0011: Test_SE0_NAK mode
-	 *	* 4'b0100: Test_Packet mode
-	 *	* 4'b0101: Test_Force_Enable
-	 *	* Others: Reserved
-	 *	PrtSpd must be zero (i.e. the interface must be in high-speed
-	 *	mode) to use the PrtTstCtl test modes.
-	 * @prtpwr: Port Power (PrtPwr)
-	 *	The application uses this field to control power to this port,
-	 *	and the core clears this bit on an overcurrent condition.
-	 *	* 1'b0: Power off
-	 *	* 1'b1: Power on
-	 * @prtlnsts: Port Line Status (PrtLnSts)
-	 *	Indicates the current logic level USB data lines
-	 *	* Bit [10]: Logic level of D-
-	 *	* Bit [11]: Logic level of D+
-	 * @prtrst: Port Reset (PrtRst)
-	 *	When the application sets this bit, a reset sequence is
-	 *	started on this port. The application must time the reset
-	 *	period and clear this bit after the reset sequence is
-	 *	complete.
-	 *	* 1'b0: Port not in reset
-	 *	* 1'b1: Port in reset
-	 *	The application must leave this bit set for at least a
-	 *	minimum duration mentioned below to start a reset on the
-	 *	port. The application can leave it set for another 10 ms in
-	 *	addition to the required minimum duration, before clearing
-	 *	the bit, even though there is no maximum limit set by the
-	 *	USB standard.
-	 *	* High speed: 50 ms
-	 *	* Full speed/Low speed: 10 ms
-	 * @prtsusp: Port Suspend (PrtSusp)
-	 *	The application sets this bit to put this port in Suspend
-	 *	mode. The core only stops sending SOFs when this is set.
-	 *	To stop the PHY clock, the application must set the Port
-	 *	Clock Stop bit, which will assert the suspend input pin of
-	 *	the PHY.
-	 *	The read value of this bit reflects the current suspend
-	 *	status of the port. This bit is cleared by the core after a
-	 *	remote wakeup signal is detected or the application sets
-	 *	the Port Reset bit or Port Resume bit in this register or the
-	 *	Resume/Remote Wakeup Detected Interrupt bit or
-	 *	Disconnect Detected Interrupt bit in the Core Interrupt
-	 *	register (GINTSTS.WkUpInt or GINTSTS.DisconnInt,
-	 *	respectively).
-	 *	* 1'b0: Port not in Suspend mode
-	 *	* 1'b1: Port in Suspend mode
-	 * @prtres: Port Resume (PrtRes)
-	 *	The application sets this bit to drive resume signaling on
-	 *	the port. The core continues to drive the resume signal
-	 *	until the application clears this bit.
-	 *	If the core detects a USB remote wakeup sequence, as
-	 *	indicated by the Port Resume/Remote Wakeup Detected
-	 *	Interrupt bit of the Core Interrupt register
-	 *	(GINTSTS.WkUpInt), the core starts driving resume
-	 *	signaling without application intervention and clears this bit
-	 *	when it detects a disconnect condition. The read value of
-	 *	this bit indicates whether the core is currently driving
-	 *	resume signaling.
-	 *	* 1'b0: No resume driven
-	 *	* 1'b1: Resume driven
-	 * @prtovrcurrchng: Port Overcurrent Change (PrtOvrCurrChng)
-	 *	The core sets this bit when the status of the Port
-	 *	Overcurrent Active bit (bit 4) in this register changes.
-	 * @prtovrcurract: Port Overcurrent Active (PrtOvrCurrAct)
-	 *	Indicates the overcurrent condition of the port.
-	 *	* 1'b0: No overcurrent condition
-	 *	* 1'b1: Overcurrent condition
-	 * @prtenchng: Port Enable/Disable Change (PrtEnChng)
-	 *	The core sets this bit when the status of the Port Enable bit
-	 *	[2] of this register changes.
-	 * @prtena: Port Enable (PrtEna)
-	 *	A port is enabled only by the core after a reset sequence,
-	 *	and is disabled by an overcurrent condition, a disconnect
-	 *	condition, or by the application clearing this bit. The
-	 *	application cannot set this bit by a register write. It can only
-	 *	clear it to disable the port. This bit does not trigger any
-	 *	interrupt to the application.
-	 *	* 1'b0: Port disabled
-	 *	* 1'b1: Port enabled
-	 * @prtconndet: Port Connect Detected (PrtConnDet)
-	 *	The core sets this bit when a device connection is detected
-	 *	to trigger an interrupt to the application using the Host Port
-	 *	Interrupt bit of the Core Interrupt register (GINTSTS.PrtInt).
-	 *	The application must write a 1 to this bit to clear the
-	 *	interrupt.
-	 * @prtconnsts: Port Connect Status (PrtConnSts)
-	 *	* 0: No device is attached to the port.
-	 *	* 1: A device is attached to the port.
-	 */
-	struct cvmx_usbcx_hprt_s {
-		uint32_t reserved_19_31	: 13;
-		uint32_t prtspd		: 2;
-		uint32_t prttstctl	: 4;
-		uint32_t prtpwr		: 1;
-		uint32_t prtlnsts	: 2;
-		uint32_t reserved_9_9	: 1;
-		uint32_t prtrst		: 1;
-		uint32_t prtsusp	: 1;
-		uint32_t prtres		: 1;
-		uint32_t prtovrcurrchng	: 1;
-		uint32_t prtovrcurract	: 1;
-		uint32_t prtenchng	: 1;
-		uint32_t prtena		: 1;
-		uint32_t prtconndet	: 1;
-		uint32_t prtconnsts	: 1;
-	} s;
-};
-
-/**
- * cvmx_usbc#_hptxfsiz
- *
- * Host Periodic Transmit FIFO Size Register (HPTXFSIZ)
- *
- * This register holds the size and the memory start address of the Periodic
- * TxFIFO, as shown in Figures 310 and 311.
- */
-union cvmx_usbcx_hptxfsiz {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_hptxfsiz_s
-	 * @ptxfsize: Host Periodic TxFIFO Depth (PTxFSize)
-	 *	This value is in terms of 32-bit words.
-	 *	* Minimum value is 16
-	 *	* Maximum value is 32768
-	 * @ptxfstaddr: Host Periodic TxFIFO Start Address (PTxFStAddr)
-	 */
-	struct cvmx_usbcx_hptxfsiz_s {
-		uint32_t ptxfsize	: 16;
-		uint32_t ptxfstaddr	: 16;
-	} s;
-};
-
-/**
- * cvmx_usbc#_hptxsts
- *
- * Host Periodic Transmit FIFO/Queue Status Register (HPTXSTS)
- *
- * This read-only register contains the free space information for the Periodic
- * TxFIFO and the Periodic Transmit Request Queue
- */
-union cvmx_usbcx_hptxsts {
-	uint32_t u32;
-	/**
-	 * struct cvmx_usbcx_hptxsts_s
-	 * @ptxqtop: Top of the Periodic Transmit Request Queue (PTxQTop)
-	 *	This indicates the entry in the Periodic Tx Request Queue that
-	 *	is currently being processes by the MAC.
-	 *	This register is used for debugging.
-	 *	* Bit [31]: Odd/Even (micro)frame
-	 *	- 1'b0: send in even (micro)frame
-	 *	- 1'b1: send in odd (micro)frame
-	 *	* Bits [30:27]: Channel/endpoint number
-	 *	* Bits [26:25]: Type
-	 *	- 2'b00: IN/OUT
-	 *	- 2'b01: Zero-length packet
-	 *	- 2'b10: CSPLIT
-	 *	- 2'b11: Disable channel command
-	 *	* Bit [24]: Terminate (last entry for the selected
-	 *	channel/endpoint)
-	 * @ptxqspcavail: Periodic Transmit Request Queue Space Available
-	 *	(PTxQSpcAvail)
-	 *	Indicates the number of free locations available to be written
-	 *	in the Periodic Transmit Request Queue. This queue holds both
-	 *	IN and OUT requests.
-	 *	* 8'h0: Periodic Transmit Request Queue is full
-	 *	* 8'h1: 1 location available
-	 *	* 8'h2: 2 locations available
-	 *	* n: n locations available (0..8)
-	 *	* Others: Reserved
-	 * @ptxfspcavail: Periodic Transmit Data FIFO Space Available
-	 *		  (PTxFSpcAvail)
-	 *	Indicates the number of free locations available to be written
-	 *	to in the Periodic TxFIFO.
-	 *	Values are in terms of 32-bit words
-	 *	* 16'h0: Periodic TxFIFO is full
-	 *	* 16'h1: 1 word available
-	 *	* 16'h2: 2 words available
-	 *	* 16'hn: n words available (where 0..32768)
-	 *	* 16'h8000: 32768 words available
-	 *	* Others: Reserved
-	 */
-	struct cvmx_usbcx_hptxsts_s {
-		uint32_t ptxqtop	: 8;
-		uint32_t ptxqspcavail	: 8;
-		uint32_t ptxfspcavail	: 16;
-	} s;
-};
-
-#endif
diff --git a/drivers/staging/octeon-usb/cvmx-usbnx-defs.h b/drivers/staging/octeon-usb/cvmx-usbnx-defs.h
deleted file mode 100644
index 6a1c777675e8..000000000000
--- a/drivers/staging/octeon-usb/cvmx-usbnx-defs.h
+++ /dev/null
@@ -1,343 +0,0 @@
-/***********************license start***************
- * Copyright (c) 2003-2010  Cavium Networks (support@cavium.com). All rights
- * reserved.
- *
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *   * Redistributions of source code must retain the above copyright
- *     notice, this list of conditions and the following disclaimer.
- *
- *   * Redistributions in binary form must reproduce the above
- *     copyright notice, this list of conditions and the following
- *     disclaimer in the documentation and/or other materials provided
- *     with the distribution.
-
- *   * Neither the name of Cavium Networks nor the names of
- *     its contributors may be used to endorse or promote products
- *     derived from this software without specific prior written
- *     permission.
-
- * This Software, including technical data, may be subject to U.S. export
- * control laws, including the U.S. Export Administration Act and its associated
- * regulations, and may be subject to export or import  regulations in other
- * countries.
-
- * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
- * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR
- * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
- * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION
- * OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
- * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
- * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
- * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
- * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE  RISK ARISING OUT OF USE OR
- * PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
- ***********************license end**************************************/
-
-
-/**
- * cvmx-usbnx-defs.h
- *
- * Configuration and status register (CSR) type definitions for
- * Octeon usbnx.
- *
- */
-#ifndef __CVMX_USBNX_TYPEDEFS_H__
-#define __CVMX_USBNX_TYPEDEFS_H__
-
-#define CVMX_USBNXBID1(bid) (((bid) & 1) * 0x10000000ull)
-#define CVMX_USBNXBID2(bid) (((bid) & 1) * 0x100000000000ull)
-
-#define CVMX_USBNXREG1(reg, bid) \
-	(CVMX_ADD_IO_SEG(0x0001180068000000ull | reg) + CVMX_USBNXBID1(bid))
-#define CVMX_USBNXREG2(reg, bid) \
-	(CVMX_ADD_IO_SEG(0x00016F0000000000ull | reg) + CVMX_USBNXBID2(bid))
-
-#define CVMX_USBNX_CLK_CTL(bid)		CVMX_USBNXREG1(0x10, bid)
-#define CVMX_USBNX_DMA0_INB_CHN0(bid)	CVMX_USBNXREG2(0x818, bid)
-#define CVMX_USBNX_DMA0_OUTB_CHN0(bid)	CVMX_USBNXREG2(0x858, bid)
-#define CVMX_USBNX_USBP_CTL_STATUS(bid)	CVMX_USBNXREG1(0x18, bid)
-
-/**
- * cvmx_usbn#_clk_ctl
- *
- * USBN_CLK_CTL = USBN's Clock Control
- *
- * This register is used to control the frequency of the hclk and the
- * hreset and phy_rst signals.
- */
-union cvmx_usbnx_clk_ctl {
-	uint64_t u64;
-	/**
-	 * struct cvmx_usbnx_clk_ctl_s
-	 * @divide2: The 'hclk' used by the USB subsystem is derived
-	 *	from the eclk.
-	 *	Also see the field DIVIDE. DIVIDE2<1> must currently
-	 *	be zero because it is not implemented, so the maximum
-	 *	ratio of eclk/hclk is currently 16.
-	 *	The actual divide number for hclk is:
-	 *	(DIVIDE2 + 1) * (DIVIDE + 1)
-	 * @hclk_rst: When this field is '0' the HCLK-DIVIDER used to
-	 *	generate the hclk in the USB Subsystem is held
-	 *	in reset. This bit must be set to '0' before
-	 *	changing the value os DIVIDE in this register.
-	 *	The reset to the HCLK_DIVIDERis also asserted
-	 *	when core reset is asserted.
-	 * @p_x_on: Force USB-PHY on during suspend.
-	 *	'1' USB-PHY XO block is powered-down during
-	 *	suspend.
-	 *	'0' USB-PHY XO block is powered-up during
-	 *	suspend.
-	 *	The value of this field must be set while POR is
-	 *	active.
-	 * @p_rtype: PHY reference clock type
-	 *	On CN50XX/CN52XX/CN56XX the values are:
-	 *		'0' The USB-PHY uses a 12MHz crystal as a clock source
-	 *		    at the USB_XO and USB_XI pins.
-	 *		'1' Reserved.
-	 *		'2' The USB_PHY uses 12/24/48MHz 2.5V board clock at the
-	 *		    USB_XO pin. USB_XI should be tied to ground in this
-	 *		    case.
-	 *		'3' Reserved.
-	 *	On CN3xxx bits 14 and 15 are p_xenbn and p_rclk and values are:
-	 *		'0' Reserved.
-	 *		'1' Reserved.
-	 *		'2' The PHY PLL uses the XO block output as a reference.
-	 *		    The XO block uses an external clock supplied on the
-	 *		    XO pin. USB_XI should be tied to ground for this
-	 *		    usage.
-	 *		'3' The XO block uses the clock from a crystal.
-	 * @p_com_on: '0' Force USB-PHY XO Bias, Bandgap and PLL to
-	 *	remain powered in Suspend Mode.
-	 *	'1' The USB-PHY XO Bias, Bandgap and PLL are
-	 *	powered down in suspend mode.
-	 *	The value of this field must be set while POR is
-	 *	active.
-	 * @p_c_sel: Phy clock speed select.
-	 *	Selects the reference clock / crystal frequency.
-	 *	'11': Reserved
-	 *	'10': 48 MHz (reserved when a crystal is used)
-	 *	'01': 24 MHz (reserved when a crystal is used)
-	 *	'00': 12 MHz
-	 *	The value of this field must be set while POR is
-	 *	active.
-	 *	NOTE: if a crystal is used as a reference clock,
-	 *	this field must be set to 12 MHz.
-	 * @cdiv_byp: Used to enable the bypass input to the USB_CLK_DIV.
-	 * @sd_mode: Scaledown mode for the USBC. Control timing events
-	 *	in the USBC, for normal operation this must be '0'.
-	 * @s_bist: Starts bist on the hclk memories, during the '0'
-	 *	to '1' transition.
-	 * @por: Power On Reset for the PHY.
-	 *	Resets all the PHYS registers and state machines.
-	 * @enable: When '1' allows the generation of the hclk. When
-	 *	'0' the hclk will not be generated. SEE DIVIDE
-	 *	field of this register.
-	 * @prst: When this field is '0' the reset associated with
-	 *	the phy_clk functionality in the USB Subsystem is
-	 *	help in reset. This bit should not be set to '1'
-	 *	until the time it takes 6 clocks (hclk or phy_clk,
-	 *	whichever is slower) has passed. Under normal
-	 *	operation once this bit is set to '1' it should not
-	 *	be set to '0'.
-	 * @hrst: When this field is '0' the reset associated with
-	 *	the hclk functioanlity in the USB Subsystem is
-	 *	held in reset.This bit should not be set to '1'
-	 *	until 12ms after phy_clk is stable. Under normal
-	 *	operation, once this bit is set to '1' it should
-	 *	not be set to '0'.
-	 * @divide: The frequency of 'hclk' used by the USB subsystem
-	 *	is the eclk frequency divided by the value of
-	 *	(DIVIDE2 + 1) * (DIVIDE + 1), also see the field
-	 *	DIVIDE2 of this register.
-	 *	The hclk frequency should be less than 125Mhz.
-	 *	After writing a value to this field the SW should
-	 *	read the field for the value written.
-	 *	The ENABLE field of this register should not be set
-	 *	until AFTER this field is set and then read.
-	 */
-	struct cvmx_usbnx_clk_ctl_s {
-		uint64_t reserved_20_63	: 44;
-		uint64_t divide2	: 2;
-		uint64_t hclk_rst	: 1;
-		uint64_t p_x_on		: 1;
-		uint64_t p_rtype	: 2;
-		uint64_t p_com_on	: 1;
-		uint64_t p_c_sel	: 2;
-		uint64_t cdiv_byp	: 1;
-		uint64_t sd_mode	: 2;
-		uint64_t s_bist		: 1;
-		uint64_t por		: 1;
-		uint64_t enable		: 1;
-		uint64_t prst		: 1;
-		uint64_t hrst		: 1;
-		uint64_t divide		: 3;
-	} s;
-};
-
-/**
- * cvmx_usbn#_usbp_ctl_status
- *
- * USBN_USBP_CTL_STATUS = USBP Control And Status Register
- *
- * Contains general control and status information for the USBN block.
- */
-union cvmx_usbnx_usbp_ctl_status {
-	uint64_t u64;
-	/**
-	 * struct cvmx_usbnx_usbp_ctl_status_s
-	 * @txrisetune: HS Transmitter Rise/Fall Time Adjustment
-	 * @txvreftune: HS DC Voltage Level Adjustment
-	 * @txfslstune: FS/LS Source Impedence Adjustment
-	 * @txhsxvtune: Transmitter High-Speed Crossover Adjustment
-	 * @sqrxtune: Squelch Threshold Adjustment
-	 * @compdistune: Disconnect Threshold Adjustment
-	 * @otgtune: VBUS Valid Threshold Adjustment
-	 * @otgdisable: OTG Block Disable
-	 * @portreset: Per_Port Reset
-	 * @drvvbus: Drive VBUS
-	 * @lsbist: Low-Speed BIST Enable.
-	 * @fsbist: Full-Speed BIST Enable.
-	 * @hsbist: High-Speed BIST Enable.
-	 * @bist_done: PHY Bist Done.
-	 *	Asserted at the end of the PHY BIST sequence.
-	 * @bist_err: PHY Bist Error.
-	 *	Indicates an internal error was detected during
-	 *	the BIST sequence.
-	 * @tdata_out: PHY Test Data Out.
-	 *	Presents either internaly generated signals or
-	 *	test register contents, based upon the value of
-	 *	test_data_out_sel.
-	 * @siddq: Drives the USBP (USB-PHY) SIDDQ input.
-	 *	Normally should be set to zero.
-	 *	When customers have no intent to use USB PHY
-	 *	interface, they should:
-	 *	- still provide 3.3V to USB_VDD33, and
-	 *	- tie USB_REXT to 3.3V supply, and
-	 *	- set USBN*_USBP_CTL_STATUS[SIDDQ]=1
-	 * @txpreemphasistune: HS Transmitter Pre-Emphasis Enable
-	 * @dma_bmode: When set to 1 the L2C DMA address will be updated
-	 *	with byte-counts between packets. When set to 0
-	 *	the L2C DMA address is incremented to the next
-	 *	4-byte aligned address after adding byte-count.
-	 * @usbc_end: Bigendian input to the USB Core. This should be
-	 *	set to '0' for operation.
-	 * @usbp_bist: PHY, This is cleared '0' to run BIST on the USBP.
-	 * @tclk: PHY Test Clock, used to load TDATA_IN to the USBP.
-	 * @dp_pulld: PHY DP_PULLDOWN input to the USB-PHY.
-	 *	This signal enables the pull-down resistance on
-	 *	the D+ line. '1' pull down-resistance is connected
-	 *	to D+/ '0' pull down resistance is not connected
-	 *	to D+. When an A/B device is acting as a host
-	 *	(downstream-facing port), dp_pulldown and
-	 *	dm_pulldown are enabled. This must not toggle
-	 *	during normal opeartion.
-	 * @dm_pulld: PHY DM_PULLDOWN input to the USB-PHY.
-	 *	This signal enables the pull-down resistance on
-	 *	the D- line. '1' pull down-resistance is connected
-	 *	to D-. '0' pull down resistance is not connected
-	 *	to D-. When an A/B device is acting as a host
-	 *	(downstream-facing port), dp_pulldown and
-	 *	dm_pulldown are enabled. This must not toggle
-	 *	during normal opeartion.
-	 * @hst_mode: When '0' the USB is acting as HOST, when '1'
-	 *	USB is acting as device. This field needs to be
-	 *	set while the USB is in reset.
-	 * @tuning: Transmitter Tuning for High-Speed Operation.
-	 *	Tunes the current supply and rise/fall output
-	 *	times for high-speed operation.
-	 *	[20:19] == 11: Current supply increased
-	 *	approximately 9%
-	 *	[20:19] == 10: Current supply increased
-	 *	approximately 4.5%
-	 *	[20:19] == 01: Design default.
-	 *	[20:19] == 00: Current supply decreased
-	 *	approximately 4.5%
-	 *	[22:21] == 11: Rise and fall times are increased.
-	 *	[22:21] == 10: Design default.
-	 *	[22:21] == 01: Rise and fall times are decreased.
-	 *	[22:21] == 00: Rise and fall times are decreased
-	 *	further as compared to the 01 setting.
-	 * @tx_bs_enh: Transmit Bit Stuffing on [15:8].
-	 *	Enables or disables bit stuffing on data[15:8]
-	 *	when bit-stuffing is enabled.
-	 * @tx_bs_en: Transmit Bit Stuffing on [7:0].
-	 *	Enables or disables bit stuffing on data[7:0]
-	 *	when bit-stuffing is enabled.
-	 * @loop_enb: PHY Loopback Test Enable.
-	 *	'1': During data transmission the receive is
-	 *	enabled.
-	 *	'0': During data transmission the receive is
-	 *	disabled.
-	 *	Must be '0' for normal operation.
-	 * @vtest_enb: Analog Test Pin Enable.
-	 *	'1' The PHY's analog_test pin is enabled for the
-	 *	input and output of applicable analog test signals.
-	 *	'0' THe analog_test pin is disabled.
-	 * @bist_enb: Built-In Self Test Enable.
-	 *	Used to activate BIST in the PHY.
-	 * @tdata_sel: Test Data Out Select.
-	 *	'1' test_data_out[3:0] (PHY) register contents
-	 *	are output. '0' internaly generated signals are
-	 *	output.
-	 * @taddr_in: Mode Address for Test Interface.
-	 *	Specifies the register address for writing to or
-	 *	reading from the PHY test interface register.
-	 * @tdata_in: Internal Testing Register Input Data and Select
-	 *	This is a test bus. Data is present on [3:0],
-	 *	and its corresponding select (enable) is present
-	 *	on bits [7:4].
-	 * @ate_reset: Reset input from automatic test equipment.
-	 *	This is a test signal. When the USB Core is
-	 *	powered up (not in Susned Mode), an automatic
-	 *	tester can use this to disable phy_clock and
-	 *	free_clk, then re-eanable them with an aligned
-	 *	phase.
-	 *	'1': The phy_clk and free_clk outputs are
-	 *	disabled. "0": The phy_clock and free_clk outputs
-	 *	are available within a specific period after the
-	 *	de-assertion.
-	 */
-	struct cvmx_usbnx_usbp_ctl_status_s {
-		uint64_t txrisetune		: 1;
-		uint64_t txvreftune		: 4;
-		uint64_t txfslstune		: 4;
-		uint64_t txhsxvtune		: 2;
-		uint64_t sqrxtune		: 3;
-		uint64_t compdistune		: 3;
-		uint64_t otgtune		: 3;
-		uint64_t otgdisable		: 1;
-		uint64_t portreset		: 1;
-		uint64_t drvvbus		: 1;
-		uint64_t lsbist			: 1;
-		uint64_t fsbist			: 1;
-		uint64_t hsbist			: 1;
-		uint64_t bist_done		: 1;
-		uint64_t bist_err		: 1;
-		uint64_t tdata_out		: 4;
-		uint64_t siddq			: 1;
-		uint64_t txpreemphasistune	: 1;
-		uint64_t dma_bmode		: 1;
-		uint64_t usbc_end		: 1;
-		uint64_t usbp_bist		: 1;
-		uint64_t tclk			: 1;
-		uint64_t dp_pulld		: 1;
-		uint64_t dm_pulld		: 1;
-		uint64_t hst_mode		: 1;
-		uint64_t tuning			: 4;
-		uint64_t tx_bs_enh		: 1;
-		uint64_t tx_bs_en		: 1;
-		uint64_t loop_enb		: 1;
-		uint64_t vtest_enb		: 1;
-		uint64_t bist_enb		: 1;
-		uint64_t tdata_sel		: 1;
-		uint64_t taddr_in		: 4;
-		uint64_t tdata_in		: 8;
-		uint64_t ate_reset		: 1;
-	} s;
-};
-
-#endif
diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 2226c7d6066e..da96461855ea 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -66,8 +66,7 @@
 #include <asm/octeon/cvmx-sysinfo.h>
 #include <asm/octeon/cvmx-helper-board.h>
 
-#include "cvmx-usbcx-defs.h"
-#include "cvmx-usbnx-defs.h"
+#include "octeon-hcd.h"
 
 /**
  * enum cvmx_usb_speed - the possible USB device speeds
diff --git a/drivers/staging/octeon-usb/octeon-hcd.h b/drivers/staging/octeon-usb/octeon-hcd.h
new file mode 100644
index 000000000000..42fe4fec7d5d
--- /dev/null
+++ b/drivers/staging/octeon-usb/octeon-hcd.h
@@ -0,0 +1,1819 @@
+/*
+ * Octeon HCD hardware register definitions.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Some parts of the code were originally released under BSD license:
+ *
+ * Copyright (c) 2003-2010 Cavium Networks (support@cavium.com). All rights
+ * reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *
+ *   * Redistributions in binary form must reproduce the above
+ *     copyright notice, this list of conditions and the following
+ *     disclaimer in the documentation and/or other materials provided
+ *     with the distribution.
+ *
+ *   * Neither the name of Cavium Networks nor the names of
+ *     its contributors may be used to endorse or promote products
+ *     derived from this software without specific prior written
+ *     permission.
+ *
+ * This Software, including technical data, may be subject to U.S. export
+ * control laws, including the U.S. Export Administration Act and its associated
+ * regulations, and may be subject to export or import regulations in other
+ * countries.
+ *
+ * TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
+ * AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS OR
+ * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
+ * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION
+ * OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
+ * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
+ * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
+ * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
+ * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT OF USE OR
+ * PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
+ */
+
+#ifndef __OCTEON_HCD_H__
+#define __OCTEON_HCD_H__
+
+#define CVMX_USBCXBASE 0x00016F0010000000ull
+#define CVMX_USBCXREG1(reg, bid) \
+	(CVMX_ADD_IO_SEG(CVMX_USBCXBASE | reg) + \
+	 ((bid) & 1) * 0x100000000000ull)
+#define CVMX_USBCXREG2(reg, bid, off) \
+	(CVMX_ADD_IO_SEG(CVMX_USBCXBASE | reg) + \
+	 (((off) & 7) + ((bid) & 1) * 0x8000000000ull) * 32)
+
+#define CVMX_USBCX_GAHBCFG(bid)		CVMX_USBCXREG1(0x008, bid)
+#define CVMX_USBCX_GHWCFG3(bid)		CVMX_USBCXREG1(0x04c, bid)
+#define CVMX_USBCX_GINTMSK(bid)		CVMX_USBCXREG1(0x018, bid)
+#define CVMX_USBCX_GINTSTS(bid)		CVMX_USBCXREG1(0x014, bid)
+#define CVMX_USBCX_GNPTXFSIZ(bid)	CVMX_USBCXREG1(0x028, bid)
+#define CVMX_USBCX_GNPTXSTS(bid)	CVMX_USBCXREG1(0x02c, bid)
+#define CVMX_USBCX_GOTGCTL(bid)		CVMX_USBCXREG1(0x000, bid)
+#define CVMX_USBCX_GRSTCTL(bid)		CVMX_USBCXREG1(0x010, bid)
+#define CVMX_USBCX_GRXFSIZ(bid)		CVMX_USBCXREG1(0x024, bid)
+#define CVMX_USBCX_GRXSTSPH(bid)	CVMX_USBCXREG1(0x020, bid)
+#define CVMX_USBCX_GUSBCFG(bid)		CVMX_USBCXREG1(0x00c, bid)
+#define CVMX_USBCX_HAINT(bid)		CVMX_USBCXREG1(0x414, bid)
+#define CVMX_USBCX_HAINTMSK(bid)	CVMX_USBCXREG1(0x418, bid)
+#define CVMX_USBCX_HCCHARX(off, bid)	CVMX_USBCXREG2(0x500, bid, off)
+#define CVMX_USBCX_HCFG(bid)		CVMX_USBCXREG1(0x400, bid)
+#define CVMX_USBCX_HCINTMSKX(off, bid)	CVMX_USBCXREG2(0x50c, bid, off)
+#define CVMX_USBCX_HCINTX(off, bid)	CVMX_USBCXREG2(0x508, bid, off)
+#define CVMX_USBCX_HCSPLTX(off, bid)	CVMX_USBCXREG2(0x504, bid, off)
+#define CVMX_USBCX_HCTSIZX(off, bid)	CVMX_USBCXREG2(0x510, bid, off)
+#define CVMX_USBCX_HFIR(bid)		CVMX_USBCXREG1(0x404, bid)
+#define CVMX_USBCX_HFNUM(bid)		CVMX_USBCXREG1(0x408, bid)
+#define CVMX_USBCX_HPRT(bid)		CVMX_USBCXREG1(0x440, bid)
+#define CVMX_USBCX_HPTXFSIZ(bid)	CVMX_USBCXREG1(0x100, bid)
+#define CVMX_USBCX_HPTXSTS(bid)		CVMX_USBCXREG1(0x410, bid)
+
+#define CVMX_USBNXBID1(bid) (((bid) & 1) * 0x10000000ull)
+#define CVMX_USBNXBID2(bid) (((bid) & 1) * 0x100000000000ull)
+
+#define CVMX_USBNXREG1(reg, bid) \
+	(CVMX_ADD_IO_SEG(0x0001180068000000ull | reg) + CVMX_USBNXBID1(bid))
+#define CVMX_USBNXREG2(reg, bid) \
+	(CVMX_ADD_IO_SEG(0x00016F0000000000ull | reg) + CVMX_USBNXBID2(bid))
+
+#define CVMX_USBNX_CLK_CTL(bid)		CVMX_USBNXREG1(0x10, bid)
+#define CVMX_USBNX_DMA0_INB_CHN0(bid)	CVMX_USBNXREG2(0x818, bid)
+#define CVMX_USBNX_DMA0_OUTB_CHN0(bid)	CVMX_USBNXREG2(0x858, bid)
+#define CVMX_USBNX_USBP_CTL_STATUS(bid)	CVMX_USBNXREG1(0x18, bid)
+
+/**
+ * cvmx_usbc#_gahbcfg
+ *
+ * Core AHB Configuration Register (GAHBCFG)
+ *
+ * This register can be used to configure the core after power-on or a change in
+ * mode of operation. This register mainly contains AHB system-related
+ * configuration parameters. The AHB is the processor interface to the O2P USB
+ * core. In general, software need not know about this interface except to
+ * program the values as specified.
+ *
+ * The application must program this register as part of the O2P USB core
+ * initialization. Do not change this register after the initial programming.
+ */
+union cvmx_usbcx_gahbcfg {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_gahbcfg_s
+	 * @ptxfemplvl: Periodic TxFIFO Empty Level (PTxFEmpLvl)
+	 *	Software should set this bit to 0x1.
+	 *	Indicates when the Periodic TxFIFO Empty Interrupt bit in the
+	 *	Core Interrupt register (GINTSTS.PTxFEmp) is triggered. This
+	 *	bit is used only in Slave mode.
+	 *	* 1'b0: GINTSTS.PTxFEmp interrupt indicates that the Periodic
+	 *	TxFIFO is half empty
+	 *	* 1'b1: GINTSTS.PTxFEmp interrupt indicates that the Periodic
+	 *	TxFIFO is completely empty
+	 * @nptxfemplvl: Non-Periodic TxFIFO Empty Level (NPTxFEmpLvl)
+	 *	Software should set this bit to 0x1.
+	 *	Indicates when the Non-Periodic TxFIFO Empty Interrupt bit in
+	 *	the Core Interrupt register (GINTSTS.NPTxFEmp) is triggered.
+	 *	This bit is used only in Slave mode.
+	 *	* 1'b0: GINTSTS.NPTxFEmp interrupt indicates that the Non-
+	 *	Periodic TxFIFO is half empty
+	 *	* 1'b1: GINTSTS.NPTxFEmp interrupt indicates that the Non-
+	 *	Periodic TxFIFO is completely empty
+	 * @dmaen: DMA Enable (DMAEn)
+	 *	* 1'b0: Core operates in Slave mode
+	 *	* 1'b1: Core operates in a DMA mode
+	 * @hbstlen: Burst Length/Type (HBstLen)
+	 *	This field has not effect and should be left as 0x0.
+	 * @glblintrmsk: Global Interrupt Mask (GlblIntrMsk)
+	 *	Software should set this field to 0x1.
+	 *	The application uses this bit to mask or unmask the interrupt
+	 *	line assertion to itself. Irrespective of this bit's setting,
+	 *	the interrupt status registers are updated by the core.
+	 *	* 1'b0: Mask the interrupt assertion to the application.
+	 *	* 1'b1: Unmask the interrupt assertion to the application.
+	 */
+	struct cvmx_usbcx_gahbcfg_s {
+		uint32_t reserved_9_31	: 23;
+		uint32_t ptxfemplvl	: 1;
+		uint32_t nptxfemplvl	: 1;
+		uint32_t reserved_6_6	: 1;
+		uint32_t dmaen		: 1;
+		uint32_t hbstlen	: 4;
+		uint32_t glblintrmsk	: 1;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_ghwcfg3
+ *
+ * User HW Config3 Register (GHWCFG3)
+ *
+ * This register contains the configuration options of the O2P USB core.
+ */
+union cvmx_usbcx_ghwcfg3 {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_ghwcfg3_s
+	 * @dfifodepth: DFIFO Depth (DfifoDepth)
+	 *	This value is in terms of 32-bit words.
+	 *	* Minimum value is 32
+	 *	* Maximum value is 32768
+	 * @ahbphysync: AHB and PHY Synchronous (AhbPhySync)
+	 *	Indicates whether AHB and PHY clocks are synchronous to
+	 *	each other.
+	 *	* 1'b0: No
+	 *	* 1'b1: Yes
+	 *	This bit is tied to 1.
+	 * @rsttype: Reset Style for Clocked always Blocks in RTL (RstType)
+	 *	* 1'b0: Asynchronous reset is used in the core
+	 *	* 1'b1: Synchronous reset is used in the core
+	 * @optfeature: Optional Features Removed (OptFeature)
+	 *	Indicates whether the User ID register, GPIO interface ports,
+	 *	and SOF toggle and counter ports were removed for gate count
+	 *	optimization.
+	 * @vendor_control_interface_support: Vendor Control Interface Support
+	 *	* 1'b0: Vendor Control Interface is not available on the core.
+	 *	* 1'b1: Vendor Control Interface is available.
+	 * @i2c_selection: I2C Selection
+	 *	* 1'b0: I2C Interface is not available on the core.
+	 *	* 1'b1: I2C Interface is available on the core.
+	 * @otgen: OTG Function Enabled (OtgEn)
+	 *	The application uses this bit to indicate the O2P USB core's
+	 *	OTG capabilities.
+	 *	* 1'b0: Not OTG capable
+	 *	* 1'b1: OTG Capable
+	 * @pktsizewidth: Width of Packet Size Counters (PktSizeWidth)
+	 *	* 3'b000: 4 bits
+	 *	* 3'b001: 5 bits
+	 *	* 3'b010: 6 bits
+	 *	* 3'b011: 7 bits
+	 *	* 3'b100: 8 bits
+	 *	* 3'b101: 9 bits
+	 *	* 3'b110: 10 bits
+	 *	* Others: Reserved
+	 * @xfersizewidth: Width of Transfer Size Counters (XferSizeWidth)
+	 *	* 4'b0000: 11 bits
+	 *	* 4'b0001: 12 bits
+	 *	- ...
+	 *	* 4'b1000: 19 bits
+	 *	* Others: Reserved
+	 */
+	struct cvmx_usbcx_ghwcfg3_s {
+		uint32_t dfifodepth				: 16;
+		uint32_t reserved_13_15				: 3;
+		uint32_t ahbphysync				: 1;
+		uint32_t rsttype				: 1;
+		uint32_t optfeature				: 1;
+		uint32_t vendor_control_interface_support	: 1;
+		uint32_t i2c_selection				: 1;
+		uint32_t otgen					: 1;
+		uint32_t pktsizewidth				: 3;
+		uint32_t xfersizewidth				: 4;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_gintmsk
+ *
+ * Core Interrupt Mask Register (GINTMSK)
+ *
+ * This register works with the Core Interrupt register to interrupt the
+ * application. When an interrupt bit is masked, the interrupt associated with
+ * that bit will not be generated. However, the Core Interrupt (GINTSTS)
+ * register bit corresponding to that interrupt will still be set.
+ * Mask interrupt: 1'b0, Unmask interrupt: 1'b1
+ */
+union cvmx_usbcx_gintmsk {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_gintmsk_s
+	 * @wkupintmsk: Resume/Remote Wakeup Detected Interrupt Mask
+	 *	(WkUpIntMsk)
+	 * @sessreqintmsk: Session Request/New Session Detected Interrupt Mask
+	 *	(SessReqIntMsk)
+	 * @disconnintmsk: Disconnect Detected Interrupt Mask (DisconnIntMsk)
+	 * @conidstschngmsk: Connector ID Status Change Mask (ConIDStsChngMsk)
+	 * @ptxfempmsk: Periodic TxFIFO Empty Mask (PTxFEmpMsk)
+	 * @hchintmsk: Host Channels Interrupt Mask (HChIntMsk)
+	 * @prtintmsk: Host Port Interrupt Mask (PrtIntMsk)
+	 * @fetsuspmsk: Data Fetch Suspended Mask (FetSuspMsk)
+	 * @incomplpmsk: Incomplete Periodic Transfer Mask (incomplPMsk)
+	 *	Incomplete Isochronous OUT Transfer Mask
+	 *	(incompISOOUTMsk)
+	 * @incompisoinmsk: Incomplete Isochronous IN Transfer Mask
+	 *		    (incompISOINMsk)
+	 * @oepintmsk: OUT Endpoints Interrupt Mask (OEPIntMsk)
+	 * @inepintmsk: IN Endpoints Interrupt Mask (INEPIntMsk)
+	 * @epmismsk: Endpoint Mismatch Interrupt Mask (EPMisMsk)
+	 * @eopfmsk: End of Periodic Frame Interrupt Mask (EOPFMsk)
+	 * @isooutdropmsk: Isochronous OUT Packet Dropped Interrupt Mask
+	 *	(ISOOutDropMsk)
+	 * @enumdonemsk: Enumeration Done Mask (EnumDoneMsk)
+	 * @usbrstmsk: USB Reset Mask (USBRstMsk)
+	 * @usbsuspmsk: USB Suspend Mask (USBSuspMsk)
+	 * @erlysuspmsk: Early Suspend Mask (ErlySuspMsk)
+	 * @i2cint: I2C Interrupt Mask (I2CINT)
+	 * @ulpickintmsk: ULPI Carkit Interrupt Mask (ULPICKINTMsk)
+	 *	I2C Carkit Interrupt Mask (I2CCKINTMsk)
+	 * @goutnakeffmsk: Global OUT NAK Effective Mask (GOUTNakEffMsk)
+	 * @ginnakeffmsk: Global Non-Periodic IN NAK Effective Mask
+	 *		  (GINNakEffMsk)
+	 * @nptxfempmsk: Non-Periodic TxFIFO Empty Mask (NPTxFEmpMsk)
+	 * @rxflvlmsk: Receive FIFO Non-Empty Mask (RxFLvlMsk)
+	 * @sofmsk: Start of (micro)Frame Mask (SofMsk)
+	 * @otgintmsk: OTG Interrupt Mask (OTGIntMsk)
+	 * @modemismsk: Mode Mismatch Interrupt Mask (ModeMisMsk)
+	 */
+	struct cvmx_usbcx_gintmsk_s {
+		uint32_t wkupintmsk		: 1;
+		uint32_t sessreqintmsk		: 1;
+		uint32_t disconnintmsk		: 1;
+		uint32_t conidstschngmsk	: 1;
+		uint32_t reserved_27_27		: 1;
+		uint32_t ptxfempmsk		: 1;
+		uint32_t hchintmsk		: 1;
+		uint32_t prtintmsk		: 1;
+		uint32_t reserved_23_23		: 1;
+		uint32_t fetsuspmsk		: 1;
+		uint32_t incomplpmsk		: 1;
+		uint32_t incompisoinmsk		: 1;
+		uint32_t oepintmsk		: 1;
+		uint32_t inepintmsk		: 1;
+		uint32_t epmismsk		: 1;
+		uint32_t reserved_16_16		: 1;
+		uint32_t eopfmsk		: 1;
+		uint32_t isooutdropmsk		: 1;
+		uint32_t enumdonemsk		: 1;
+		uint32_t usbrstmsk		: 1;
+		uint32_t usbsuspmsk		: 1;
+		uint32_t erlysuspmsk		: 1;
+		uint32_t i2cint			: 1;
+		uint32_t ulpickintmsk		: 1;
+		uint32_t goutnakeffmsk		: 1;
+		uint32_t ginnakeffmsk		: 1;
+		uint32_t nptxfempmsk		: 1;
+		uint32_t rxflvlmsk		: 1;
+		uint32_t sofmsk			: 1;
+		uint32_t otgintmsk		: 1;
+		uint32_t modemismsk		: 1;
+		uint32_t reserved_0_0		: 1;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_gintsts
+ *
+ * Core Interrupt Register (GINTSTS)
+ *
+ * This register interrupts the application for system-level events in the
+ * current mode of operation (Device mode or Host mode). It is shown in
+ * Interrupt. Some of the bits in this register are valid only in Host mode,
+ * while others are valid in Device mode only. This register also indicates the
+ * current mode of operation. In order to clear the interrupt status bits of
+ * type R_SS_WC, the application must write 1'b1 into the bit. The FIFO status
+ * interrupts are read only; once software reads from or writes to the FIFO
+ * while servicing these interrupts, FIFO interrupt conditions are cleared
+ * automatically.
+ */
+union cvmx_usbcx_gintsts {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_gintsts_s
+	 * @wkupint: Resume/Remote Wakeup Detected Interrupt (WkUpInt)
+	 *	In Device mode, this interrupt is asserted when a resume is
+	 *	detected on the USB. In Host mode, this interrupt is asserted
+	 *	when a remote wakeup is detected on the USB.
+	 *	For more information on how to use this interrupt, see "Partial
+	 *	Power-Down and Clock Gating Programming Model" on
+	 *	page 353.
+	 * @sessreqint: Session Request/New Session Detected Interrupt
+	 *		(SessReqInt)
+	 *	In Host mode, this interrupt is asserted when a session request
+	 *	is detected from the device. In Device mode, this interrupt is
+	 *	asserted when the utmiotg_bvalid signal goes high.
+	 *	For more information on how to use this interrupt, see "Partial
+	 *	Power-Down and Clock Gating Programming Model" on
+	 *	page 353.
+	 * @disconnint: Disconnect Detected Interrupt (DisconnInt)
+	 *	Asserted when a device disconnect is detected.
+	 * @conidstschng: Connector ID Status Change (ConIDStsChng)
+	 *	The core sets this bit when there is a change in connector ID
+	 *	status.
+	 * @ptxfemp: Periodic TxFIFO Empty (PTxFEmp)
+	 *	Asserted when the Periodic Transmit FIFO is either half or
+	 *	completely empty and there is space for at least one entry to be
+	 *	written in the Periodic Request Queue. The half or completely
+	 *	empty status is determined by the Periodic TxFIFO Empty Level
+	 *	bit in the Core AHB Configuration register
+	 *	(GAHBCFG.PTxFEmpLvl).
+	 * @hchint: Host Channels Interrupt (HChInt)
+	 *	The core sets this bit to indicate that an interrupt is pending
+	 *	on one of the channels of the core (in Host mode). The
+	 *	application must read the Host All Channels Interrupt (HAINT)
+	 *	register to determine the exact number of the channel on which
+	 *	the interrupt occurred, and then read the corresponding Host
+	 *	Channel-n Interrupt (HCINTn) register to determine the exact
+	 *	cause of the interrupt. The application must clear the
+	 *	appropriate status bit in the HCINTn register to clear this bit.
+	 * @prtint: Host Port Interrupt (PrtInt)
+	 *	The core sets this bit to indicate a change in port status of
+	 *	one of the O2P USB core ports in Host mode. The application must
+	 *	read the Host Port Control and Status (HPRT) register to
+	 *	determine the exact event that caused this interrupt. The
+	 *	application must clear the appropriate status bit in the Host
+	 *	Port Control and Status register to clear this bit.
+	 * @fetsusp: Data Fetch Suspended (FetSusp)
+	 *	This interrupt is valid only in DMA mode. This interrupt
+	 *	indicates that the core has stopped fetching data for IN
+	 *	endpoints due to the unavailability of TxFIFO space or Request
+	 *	Queue space. This interrupt is used by the application for an
+	 *	endpoint mismatch algorithm.
+	 * @incomplp: Incomplete Periodic Transfer (incomplP)
+	 *	In Host mode, the core sets this interrupt bit when there are
+	 *	incomplete periodic transactions still pending which are
+	 *	scheduled for the current microframe.
+	 *	Incomplete Isochronous OUT Transfer (incompISOOUT)
+	 *	The Device mode, the core sets this interrupt to indicate that
+	 *	there is at least one isochronous OUT endpoint on which the
+	 *	transfer is not completed in the current microframe. This
+	 *	interrupt is asserted along with the End of Periodic Frame
+	 *	Interrupt (EOPF) bit in this register.
+	 * @incompisoin: Incomplete Isochronous IN Transfer (incompISOIN)
+	 *	The core sets this interrupt to indicate that there is at least
+	 *	one isochronous IN endpoint on which the transfer is not
+	 *	completed in the current microframe. This interrupt is asserted
+	 *	along with the End of Periodic Frame Interrupt (EOPF) bit in
+	 *	this register.
+	 * @oepint: OUT Endpoints Interrupt (OEPInt)
+	 *	The core sets this bit to indicate that an interrupt is pending
+	 *	on one of the OUT endpoints of the core (in Device mode). The
+	 *	application must read the Device All Endpoints Interrupt
+	 *	(DAINT) register to determine the exact number of the OUT
+	 *	endpoint on which the interrupt occurred, and then read the
+	 *	corresponding Device OUT Endpoint-n Interrupt (DOEPINTn)
+	 *	register to determine the exact cause of the interrupt. The
+	 *	application must clear the appropriate status bit in the
+	 *	corresponding DOEPINTn register to clear this bit.
+	 * @iepint: IN Endpoints Interrupt (IEPInt)
+	 *	The core sets this bit to indicate that an interrupt is pending
+	 *	on one of the IN endpoints of the core (in Device mode). The
+	 *	application must read the Device All Endpoints Interrupt
+	 *	(DAINT) register to determine the exact number of the IN
+	 *	endpoint on which the interrupt occurred, and then read the
+	 *	corresponding Device IN Endpoint-n Interrupt (DIEPINTn)
+	 *	register to determine the exact cause of the interrupt. The
+	 *	application must clear the appropriate status bit in the
+	 *	corresponding DIEPINTn register to clear this bit.
+	 * @epmis: Endpoint Mismatch Interrupt (EPMis)
+	 *	Indicates that an IN token has been received for a non-periodic
+	 *	endpoint, but the data for another endpoint is present in the
+	 *	top of the Non-Periodic Transmit FIFO and the IN endpoint
+	 *	mismatch count programmed by the application has expired.
+	 * @eopf: End of Periodic Frame Interrupt (EOPF)
+	 *	Indicates that the period specified in the Periodic Frame
+	 *	Interval field of the Device Configuration register
+	 *	(DCFG.PerFrInt) has been reached in the current microframe.
+	 * @isooutdrop: Isochronous OUT Packet Dropped Interrupt (ISOOutDrop)
+	 *	The core sets this bit when it fails to write an isochronous OUT
+	 *	packet into the RxFIFO because the RxFIFO doesn't have
+	 *	enough space to accommodate a maximum packet size packet
+	 *	for the isochronous OUT endpoint.
+	 * @enumdone: Enumeration Done (EnumDone)
+	 *	The core sets this bit to indicate that speed enumeration is
+	 *	complete. The application must read the Device Status (DSTS)
+	 *	register to obtain the enumerated speed.
+	 * @usbrst: USB Reset (USBRst)
+	 *	The core sets this bit to indicate that a reset is detected on
+	 *	the USB.
+	 * @usbsusp: USB Suspend (USBSusp)
+	 *	The core sets this bit to indicate that a suspend was detected
+	 *	on the USB. The core enters the Suspended state when there
+	 *	is no activity on the phy_line_state_i signal for an extended
+	 *	period of time.
+	 * @erlysusp: Early Suspend (ErlySusp)
+	 *	The core sets this bit to indicate that an Idle state has been
+	 *	detected on the USB for 3 ms.
+	 * @i2cint: I2C Interrupt (I2CINT)
+	 *	This bit is always 0x0.
+	 * @ulpickint: ULPI Carkit Interrupt (ULPICKINT)
+	 *	This bit is always 0x0.
+	 * @goutnakeff: Global OUT NAK Effective (GOUTNakEff)
+	 *	Indicates that the Set Global OUT NAK bit in the Device Control
+	 *	register (DCTL.SGOUTNak), set by the application, has taken
+	 *	effect in the core. This bit can be cleared by writing the Clear
+	 *	Global OUT NAK bit in the Device Control register
+	 *	(DCTL.CGOUTNak).
+	 * @ginnakeff: Global IN Non-Periodic NAK Effective (GINNakEff)
+	 *	Indicates that the Set Global Non-Periodic IN NAK bit in the
+	 *	Device Control register (DCTL.SGNPInNak), set by the
+	 *	application, has taken effect in the core. That is, the core has
+	 *	sampled the Global IN NAK bit set by the application. This bit
+	 *	can be cleared by clearing the Clear Global Non-Periodic IN
+	 *	NAK bit in the Device Control register (DCTL.CGNPInNak).
+	 *	This interrupt does not necessarily mean that a NAK handshake
+	 *	is sent out on the USB. The STALL bit takes precedence over
+	 *	the NAK bit.
+	 * @nptxfemp: Non-Periodic TxFIFO Empty (NPTxFEmp)
+	 *	This interrupt is asserted when the Non-Periodic TxFIFO is
+	 *	either half or completely empty, and there is space for at least
+	 *	one entry to be written to the Non-Periodic Transmit Request
+	 *	Queue. The half or completely empty status is determined by
+	 *	the Non-Periodic TxFIFO Empty Level bit in the Core AHB
+	 *	Configuration register (GAHBCFG.NPTxFEmpLvl).
+	 * @rxflvl: RxFIFO Non-Empty (RxFLvl)
+	 *	Indicates that there is at least one packet pending to be read
+	 *	from the RxFIFO.
+	 * @sof: Start of (micro)Frame (Sof)
+	 *	In Host mode, the core sets this bit to indicate that an SOF
+	 *	(FS), micro-SOF (HS), or Keep-Alive (LS) is transmitted on the
+	 *	USB. The application must write a 1 to this bit to clear the
+	 *	interrupt.
+	 *	In Device mode, in the core sets this bit to indicate that an
+	 *	SOF token has been received on the USB. The application can read
+	 *	the Device Status register to get the current (micro)frame
+	 *	number. This interrupt is seen only when the core is operating
+	 *	at either HS or FS.
+	 * @otgint: OTG Interrupt (OTGInt)
+	 *	The core sets this bit to indicate an OTG protocol event. The
+	 *	application must read the OTG Interrupt Status (GOTGINT)
+	 *	register to determine the exact event that caused this
+	 *	interrupt. The application must clear the appropriate status bit
+	 *	in the GOTGINT register to clear this bit.
+	 * @modemis: Mode Mismatch Interrupt (ModeMis)
+	 *	The core sets this bit when the application is trying to access:
+	 *	* A Host mode register, when the core is operating in Device
+	 *	mode
+	 *	* A Device mode register, when the core is operating in Host
+	 *	mode
+	 *	The register access is completed on the AHB with an OKAY
+	 *	response, but is ignored by the core internally and doesn't
+	 *	affect the operation of the core.
+	 * @curmod: Current Mode of Operation (CurMod)
+	 *	Indicates the current mode of operation.
+	 *	* 1'b0: Device mode
+	 *	* 1'b1: Host mode
+	 */
+	struct cvmx_usbcx_gintsts_s {
+		uint32_t wkupint	: 1;
+		uint32_t sessreqint	: 1;
+		uint32_t disconnint	: 1;
+		uint32_t conidstschng	: 1;
+		uint32_t reserved_27_27	: 1;
+		uint32_t ptxfemp	: 1;
+		uint32_t hchint		: 1;
+		uint32_t prtint		: 1;
+		uint32_t reserved_23_23	: 1;
+		uint32_t fetsusp	: 1;
+		uint32_t incomplp	: 1;
+		uint32_t incompisoin	: 1;
+		uint32_t oepint		: 1;
+		uint32_t iepint		: 1;
+		uint32_t epmis		: 1;
+		uint32_t reserved_16_16	: 1;
+		uint32_t eopf		: 1;
+		uint32_t isooutdrop	: 1;
+		uint32_t enumdone	: 1;
+		uint32_t usbrst		: 1;
+		uint32_t usbsusp	: 1;
+		uint32_t erlysusp	: 1;
+		uint32_t i2cint		: 1;
+		uint32_t ulpickint	: 1;
+		uint32_t goutnakeff	: 1;
+		uint32_t ginnakeff	: 1;
+		uint32_t nptxfemp	: 1;
+		uint32_t rxflvl		: 1;
+		uint32_t sof		: 1;
+		uint32_t otgint		: 1;
+		uint32_t modemis	: 1;
+		uint32_t curmod		: 1;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_gnptxfsiz
+ *
+ * Non-Periodic Transmit FIFO Size Register (GNPTXFSIZ)
+ *
+ * The application can program the RAM size and the memory start address for the
+ * Non-Periodic TxFIFO.
+ */
+union cvmx_usbcx_gnptxfsiz {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_gnptxfsiz_s
+	 * @nptxfdep: Non-Periodic TxFIFO Depth (NPTxFDep)
+	 *	This value is in terms of 32-bit words.
+	 *	Minimum value is 16
+	 *	Maximum value is 32768
+	 * @nptxfstaddr: Non-Periodic Transmit RAM Start Address (NPTxFStAddr)
+	 *	This field contains the memory start address for Non-Periodic
+	 *	Transmit FIFO RAM.
+	 */
+	struct cvmx_usbcx_gnptxfsiz_s {
+		uint32_t nptxfdep	: 16;
+		uint32_t nptxfstaddr	: 16;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_gnptxsts
+ *
+ * Non-Periodic Transmit FIFO/Queue Status Register (GNPTXSTS)
+ *
+ * This read-only register contains the free space information for the
+ * Non-Periodic TxFIFO and the Non-Periodic Transmit Request Queue.
+ */
+union cvmx_usbcx_gnptxsts {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_gnptxsts_s
+	 * @nptxqtop: Top of the Non-Periodic Transmit Request Queue (NPTxQTop)
+	 *	Entry in the Non-Periodic Tx Request Queue that is currently
+	 *	being processed by the MAC.
+	 *	* Bits [30:27]: Channel/endpoint number
+	 *	* Bits [26:25]:
+	 *	- 2'b00: IN/OUT token
+	 *	- 2'b01: Zero-length transmit packet (device IN/host OUT)
+	 *	- 2'b10: PING/CSPLIT token
+	 *	- 2'b11: Channel halt command
+	 *	* Bit [24]: Terminate (last entry for selected channel/endpoint)
+	 * @nptxqspcavail: Non-Periodic Transmit Request Queue Space Available
+	 *	(NPTxQSpcAvail)
+	 *	Indicates the amount of free space available in the Non-
+	 *	Periodic Transmit Request Queue. This queue holds both IN
+	 *	and OUT requests in Host mode. Device mode has only IN
+	 *	requests.
+	 *	* 8'h0: Non-Periodic Transmit Request Queue is full
+	 *	* 8'h1: 1 location available
+	 *	* 8'h2: 2 locations available
+	 *	* n: n locations available (0..8)
+	 *	* Others: Reserved
+	 * @nptxfspcavail: Non-Periodic TxFIFO Space Avail (NPTxFSpcAvail)
+	 *	Indicates the amount of free space available in the Non-
+	 *	Periodic TxFIFO.
+	 *	Values are in terms of 32-bit words.
+	 *	* 16'h0: Non-Periodic TxFIFO is full
+	 *	* 16'h1: 1 word available
+	 *	* 16'h2: 2 words available
+	 *	* 16'hn: n words available (where 0..32768)
+	 *	* 16'h8000: 32768 words available
+	 *	* Others: Reserved
+	 */
+	struct cvmx_usbcx_gnptxsts_s {
+		uint32_t reserved_31_31	: 1;
+		uint32_t nptxqtop	: 7;
+		uint32_t nptxqspcavail	: 8;
+		uint32_t nptxfspcavail	: 16;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_grstctl
+ *
+ * Core Reset Register (GRSTCTL)
+ *
+ * The application uses this register to reset various hardware features inside
+ * the core.
+ */
+union cvmx_usbcx_grstctl {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_grstctl_s
+	 * @ahbidle: AHB Master Idle (AHBIdle)
+	 *	Indicates that the AHB Master State Machine is in the IDLE
+	 *	condition.
+	 * @dmareq: DMA Request Signal (DMAReq)
+	 *	Indicates that the DMA request is in progress. Used for debug.
+	 * @txfnum: TxFIFO Number (TxFNum)
+	 *	This is the FIFO number that must be flushed using the TxFIFO
+	 *	Flush bit. This field must not be changed until the core clears
+	 *	the TxFIFO Flush bit.
+	 *	* 5'h0: Non-Periodic TxFIFO flush
+	 *	* 5'h1: Periodic TxFIFO 1 flush in Device mode or Periodic
+	 *	TxFIFO flush in Host mode
+	 *	* 5'h2: Periodic TxFIFO 2 flush in Device mode
+	 *	- ...
+	 *	* 5'hF: Periodic TxFIFO 15 flush in Device mode
+	 *	* 5'h10: Flush all the Periodic and Non-Periodic TxFIFOs in the
+	 *	core
+	 * @txfflsh: TxFIFO Flush (TxFFlsh)
+	 *	This bit selectively flushes a single or all transmit FIFOs, but
+	 *	cannot do so if the core is in the midst of a transaction.
+	 *	The application must only write this bit after checking that the
+	 *	core is neither writing to the TxFIFO nor reading from the
+	 *	TxFIFO.
+	 *	The application must wait until the core clears this bit before
+	 *	performing any operations. This bit takes 8 clocks (of phy_clk
+	 *	or hclk, whichever is slower) to clear.
+	 * @rxfflsh: RxFIFO Flush (RxFFlsh)
+	 *	The application can flush the entire RxFIFO using this bit, but
+	 *	must first ensure that the core is not in the middle of a
+	 *	transaction.
+	 *	The application must only write to this bit after checking that
+	 *	the core is neither reading from the RxFIFO nor writing to the
+	 *	RxFIFO.
+	 *	The application must wait until the bit is cleared before
+	 *	performing any other operations. This bit will take 8 clocks
+	 *	(slowest of PHY or AHB clock) to clear.
+	 * @intknqflsh: IN Token Sequence Learning Queue Flush (INTknQFlsh)
+	 *	The application writes this bit to flush the IN Token Sequence
+	 *	Learning Queue.
+	 * @frmcntrrst: Host Frame Counter Reset (FrmCntrRst)
+	 *	The application writes this bit to reset the (micro)frame number
+	 *	counter inside the core. When the (micro)frame counter is reset,
+	 *	the subsequent SOF sent out by the core will have a
+	 *	(micro)frame number of 0.
+	 * @hsftrst: HClk Soft Reset (HSftRst)
+	 *	The application uses this bit to flush the control logic in the
+	 *	AHB Clock domain. Only AHB Clock Domain pipelines are reset.
+	 *	* FIFOs are not flushed with this bit.
+	 *	* All state machines in the AHB clock domain are reset to the
+	 *	Idle state after terminating the transactions on the AHB,
+	 *	following the protocol.
+	 *	* CSR control bits used by the AHB clock domain state
+	 *	machines are cleared.
+	 *	* To clear this interrupt, status mask bits that control the
+	 *	interrupt status and are generated by the AHB clock domain
+	 *	state machine are cleared.
+	 *	* Because interrupt status bits are not cleared, the application
+	 *	can get the status of any core events that occurred after it set
+	 *	this bit.
+	 *	This is a self-clearing bit that the core clears after all
+	 *	necessary logic is reset in the core. This may take several
+	 *	clocks, depending on the core's current state.
+	 * @csftrst: Core Soft Reset (CSftRst)
+	 *	Resets the hclk and phy_clock domains as follows:
+	 *	* Clears the interrupts and all the CSR registers except the
+	 *	following register bits:
+	 *	- PCGCCTL.RstPdwnModule
+	 *	- PCGCCTL.GateHclk
+	 *	- PCGCCTL.PwrClmp
+	 *	- PCGCCTL.StopPPhyLPwrClkSelclk
+	 *	- GUSBCFG.PhyLPwrClkSel
+	 *	- GUSBCFG.DDRSel
+	 *	- GUSBCFG.PHYSel
+	 *	- GUSBCFG.FSIntf
+	 *	- GUSBCFG.ULPI_UTMI_Sel
+	 *	- GUSBCFG.PHYIf
+	 *	- HCFG.FSLSPclkSel
+	 *	- DCFG.DevSpd
+	 *	* All module state machines (except the AHB Slave Unit) are
+	 *	reset to the IDLE state, and all the transmit FIFOs and the
+	 *	receive FIFO are flushed.
+	 *	* Any transactions on the AHB Master are terminated as soon
+	 *	as possible, after gracefully completing the last data phase of
+	 *	an AHB transfer. Any transactions on the USB are terminated
+	 *	immediately.
+	 *	The application can write to this bit any time it wants to reset
+	 *	the core. This is a self-clearing bit and the core clears this
+	 *	bit after all the necessary logic is reset in the core, which
+	 *	may take several clocks, depending on the current state of the
+	 *	core. Once this bit is cleared software should wait at least 3
+	 *	PHY clocks before doing any access to the PHY domain
+	 *	(synchronization delay). Software should also should check that
+	 *	bit 31 of this register is 1 (AHB Master is IDLE) before
+	 *	starting any operation.
+	 *	Typically software reset is used during software development
+	 *	and also when you dynamically change the PHY selection bits
+	 *	in the USB configuration registers listed above. When you
+	 *	change the PHY, the corresponding clock for the PHY is
+	 *	selected and used in the PHY domain. Once a new clock is
+	 *	selected, the PHY domain has to be reset for proper operation.
+	 */
+	struct cvmx_usbcx_grstctl_s {
+		uint32_t ahbidle	: 1;
+		uint32_t dmareq		: 1;
+		uint32_t reserved_11_29	: 19;
+		uint32_t txfnum		: 5;
+		uint32_t txfflsh	: 1;
+		uint32_t rxfflsh	: 1;
+		uint32_t intknqflsh	: 1;
+		uint32_t frmcntrrst	: 1;
+		uint32_t hsftrst	: 1;
+		uint32_t csftrst	: 1;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_grxfsiz
+ *
+ * Receive FIFO Size Register (GRXFSIZ)
+ *
+ * The application can program the RAM size that must be allocated to the
+ * RxFIFO.
+ */
+union cvmx_usbcx_grxfsiz {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_grxfsiz_s
+	 * @rxfdep: RxFIFO Depth (RxFDep)
+	 *	This value is in terms of 32-bit words.
+	 *	* Minimum value is 16
+	 *	* Maximum value is 32768
+	 */
+	struct cvmx_usbcx_grxfsiz_s {
+		uint32_t reserved_16_31	: 16;
+		uint32_t rxfdep		: 16;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_grxstsph
+ *
+ * Receive Status Read and Pop Register, Host Mode (GRXSTSPH)
+ *
+ * A read to the Receive Status Read and Pop register returns and additionally
+ * pops the top data entry out of the RxFIFO.
+ * This Description is only valid when the core is in Host Mode. For Device Mode
+ * use USBC_GRXSTSPD instead.
+ * NOTE: GRXSTSPH and GRXSTSPD are physically the same register and share the
+ *	 same offset in the O2P USB core. The offset difference shown in this
+ *	 document is for software clarity and is actually ignored by the
+ *       hardware.
+ */
+union cvmx_usbcx_grxstsph {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_grxstsph_s
+	 * @pktsts: Packet Status (PktSts)
+	 *	Indicates the status of the received packet
+	 *	* 4'b0010: IN data packet received
+	 *	* 4'b0011: IN transfer completed (triggers an interrupt)
+	 *	* 4'b0101: Data toggle error (triggers an interrupt)
+	 *	* 4'b0111: Channel halted (triggers an interrupt)
+	 *	* Others: Reserved
+	 * @dpid: Data PID (DPID)
+	 *	* 2'b00: DATA0
+	 *	* 2'b10: DATA1
+	 *	* 2'b01: DATA2
+	 *	* 2'b11: MDATA
+	 * @bcnt: Byte Count (BCnt)
+	 *	Indicates the byte count of the received IN data packet
+	 * @chnum: Channel Number (ChNum)
+	 *	Indicates the channel number to which the current received
+	 *	packet belongs.
+	 */
+	struct cvmx_usbcx_grxstsph_s {
+		uint32_t reserved_21_31	: 11;
+		uint32_t pktsts		: 4;
+		uint32_t dpid		: 2;
+		uint32_t bcnt		: 11;
+		uint32_t chnum		: 4;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_gusbcfg
+ *
+ * Core USB Configuration Register (GUSBCFG)
+ *
+ * This register can be used to configure the core after power-on or a changing
+ * to Host mode or Device mode. It contains USB and USB-PHY related
+ * configuration parameters. The application must program this register before
+ * starting any transactions on either the AHB or the USB. Do not make changes
+ * to this register after the initial programming.
+ */
+union cvmx_usbcx_gusbcfg {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_gusbcfg_s
+	 * @otgi2csel: UTMIFS or I2C Interface Select (OtgI2CSel)
+	 *	This bit is always 0x0.
+	 * @phylpwrclksel: PHY Low-Power Clock Select (PhyLPwrClkSel)
+	 *	Software should set this bit to 0x0.
+	 *	Selects either 480-MHz or 48-MHz (low-power) PHY mode. In
+	 *	FS and LS modes, the PHY can usually operate on a 48-MHz
+	 *	clock to save power.
+	 *	* 1'b0: 480-MHz Internal PLL clock
+	 *	* 1'b1: 48-MHz External Clock
+	 *	In 480 MHz mode, the UTMI interface operates at either 60 or
+	 *	30-MHz, depending upon whether 8- or 16-bit data width is
+	 *	selected. In 48-MHz mode, the UTMI interface operates at 48
+	 *	MHz in FS mode and at either 48 or 6 MHz in LS mode
+	 *	(depending on the PHY vendor).
+	 *	This bit drives the utmi_fsls_low_power core output signal, and
+	 *	is valid only for UTMI+ PHYs.
+	 * @usbtrdtim: USB Turnaround Time (USBTrdTim)
+	 *	Sets the turnaround time in PHY clocks.
+	 *	Specifies the response time for a MAC request to the Packet
+	 *	FIFO Controller (PFC) to fetch data from the DFIFO (SPRAM).
+	 *	This must be programmed to 0x5.
+	 * @hnpcap: HNP-Capable (HNPCap)
+	 *	This bit is always 0x0.
+	 * @srpcap: SRP-Capable (SRPCap)
+	 *	This bit is always 0x0.
+	 * @ddrsel: ULPI DDR Select (DDRSel)
+	 *	Software should set this bit to 0x0.
+	 * @physel: USB 2.0 High-Speed PHY or USB 1.1 Full-Speed Serial
+	 *	Software should set this bit to 0x0.
+	 * @fsintf: Full-Speed Serial Interface Select (FSIntf)
+	 *	Software should set this bit to 0x0.
+	 * @ulpi_utmi_sel: ULPI or UTMI+ Select (ULPI_UTMI_Sel)
+	 *	This bit is always 0x0.
+	 * @phyif: PHY Interface (PHYIf)
+	 *	This bit is always 0x1.
+	 * @toutcal: HS/FS Timeout Calibration (TOutCal)
+	 *	The number of PHY clocks that the application programs in this
+	 *	field is added to the high-speed/full-speed interpacket timeout
+	 *	duration in the core to account for any additional delays
+	 *	introduced by the PHY. This may be required, since the delay
+	 *	introduced by the PHY in generating the linestate condition may
+	 *	vary from one PHY to another.
+	 *	The USB standard timeout value for high-speed operation is
+	 *	736 to 816 (inclusive) bit times. The USB standard timeout
+	 *	value for full-speed operation is 16 to 18 (inclusive) bit
+	 *	times. The application must program this field based on the
+	 *	speed of enumeration. The number of bit times added per PHY
+	 *	clock are:
+	 *	High-speed operation:
+	 *	* One 30-MHz PHY clock = 16 bit times
+	 *	* One 60-MHz PHY clock = 8 bit times
+	 *	Full-speed operation:
+	 *	* One 30-MHz PHY clock = 0.4 bit times
+	 *	* One 60-MHz PHY clock = 0.2 bit times
+	 *	* One 48-MHz PHY clock = 0.25 bit times
+	 */
+	struct cvmx_usbcx_gusbcfg_s {
+		uint32_t reserved_17_31	: 15;
+		uint32_t otgi2csel	: 1;
+		uint32_t phylpwrclksel	: 1;
+		uint32_t reserved_14_14	: 1;
+		uint32_t usbtrdtim	: 4;
+		uint32_t hnpcap		: 1;
+		uint32_t srpcap		: 1;
+		uint32_t ddrsel		: 1;
+		uint32_t physel		: 1;
+		uint32_t fsintf		: 1;
+		uint32_t ulpi_utmi_sel	: 1;
+		uint32_t phyif		: 1;
+		uint32_t toutcal	: 3;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_haint
+ *
+ * Host All Channels Interrupt Register (HAINT)
+ *
+ * When a significant event occurs on a channel, the Host All Channels Interrupt
+ * register interrupts the application using the Host Channels Interrupt bit of
+ * the Core Interrupt register (GINTSTS.HChInt). This is shown in Interrupt.
+ * There is one interrupt bit per channel, up to a maximum of 16 bits. Bits in
+ * this register are set and cleared when the application sets and clears bits
+ * in the corresponding Host Channel-n Interrupt register.
+ */
+union cvmx_usbcx_haint {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_haint_s
+	 * @haint: Channel Interrupts (HAINT)
+	 *	One bit per channel: Bit 0 for Channel 0, bit 15 for Channel 15
+	 */
+	struct cvmx_usbcx_haint_s {
+		uint32_t reserved_16_31	: 16;
+		uint32_t haint		: 16;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_haintmsk
+ *
+ * Host All Channels Interrupt Mask Register (HAINTMSK)
+ *
+ * The Host All Channel Interrupt Mask register works with the Host All Channel
+ * Interrupt register to interrupt the application when an event occurs on a
+ * channel. There is one interrupt mask bit per channel, up to a maximum of 16
+ * bits.
+ * Mask interrupt: 1'b0 Unmask interrupt: 1'b1
+ */
+union cvmx_usbcx_haintmsk {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_haintmsk_s
+	 * @haintmsk: Channel Interrupt Mask (HAINTMsk)
+	 *	One bit per channel: Bit 0 for channel 0, bit 15 for channel 15
+	 */
+	struct cvmx_usbcx_haintmsk_s {
+		uint32_t reserved_16_31	: 16;
+		uint32_t haintmsk	: 16;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_hcchar#
+ *
+ * Host Channel-n Characteristics Register (HCCHAR)
+ *
+ */
+union cvmx_usbcx_hccharx {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_hccharx_s
+	 * @chena: Channel Enable (ChEna)
+	 *	This field is set by the application and cleared by the OTG
+	 *	host.
+	 *	* 1'b0: Channel disabled
+	 *	* 1'b1: Channel enabled
+	 * @chdis: Channel Disable (ChDis)
+	 *	The application sets this bit to stop transmitting/receiving
+	 *	data on a channel, even before the transfer for that channel is
+	 *	complete. The application must wait for the Channel Disabled
+	 *	interrupt before treating the channel as disabled.
+	 * @oddfrm: Odd Frame (OddFrm)
+	 *	This field is set (reset) by the application to indicate that
+	 *	the OTG host must perform a transfer in an odd (micro)frame.
+	 *	This field is applicable for only periodic (isochronous and
+	 *	interrupt) transactions.
+	 *	* 1'b0: Even (micro)frame
+	 *	* 1'b1: Odd (micro)frame
+	 * @devaddr: Device Address (DevAddr)
+	 *	This field selects the specific device serving as the data
+	 *	source or sink.
+	 * @ec: Multi Count (MC) / Error Count (EC)
+	 *	When the Split Enable bit of the Host Channel-n Split Control
+	 *	register (HCSPLTn.SpltEna) is reset (1'b0), this field indicates
+	 *	to the host the number of transactions that should be executed
+	 *	per microframe for this endpoint.
+	 *	* 2'b00: Reserved. This field yields undefined results.
+	 *	* 2'b01: 1 transaction
+	 *	* 2'b10: 2 transactions to be issued for this endpoint per
+	 *	microframe
+	 *	* 2'b11: 3 transactions to be issued for this endpoint per
+	 *	microframe
+	 *	When HCSPLTn.SpltEna is set (1'b1), this field indicates the
+	 *	number of immediate retries to be performed for a periodic split
+	 *	transactions on transaction errors. This field must be set to at
+	 *	least 2'b01.
+	 * @eptype: Endpoint Type (EPType)
+	 *	Indicates the transfer type selected.
+	 *	* 2'b00: Control
+	 *	* 2'b01: Isochronous
+	 *	* 2'b10: Bulk
+	 *	* 2'b11: Interrupt
+	 * @lspddev: Low-Speed Device (LSpdDev)
+	 *	This field is set by the application to indicate that this
+	 *	channel is communicating to a low-speed device.
+	 * @epdir: Endpoint Direction (EPDir)
+	 *	Indicates whether the transaction is IN or OUT.
+	 *	* 1'b0: OUT
+	 *	* 1'b1: IN
+	 * @epnum: Endpoint Number (EPNum)
+	 *	Indicates the endpoint number on the device serving as the
+	 *	data source or sink.
+	 * @mps: Maximum Packet Size (MPS)
+	 *	Indicates the maximum packet size of the associated endpoint.
+	 */
+	struct cvmx_usbcx_hccharx_s {
+		uint32_t chena		: 1;
+		uint32_t chdis		: 1;
+		uint32_t oddfrm		: 1;
+		uint32_t devaddr	: 7;
+		uint32_t ec		: 2;
+		uint32_t eptype		: 2;
+		uint32_t lspddev	: 1;
+		uint32_t reserved_16_16	: 1;
+		uint32_t epdir		: 1;
+		uint32_t epnum		: 4;
+		uint32_t mps		: 11;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_hcfg
+ *
+ * Host Configuration Register (HCFG)
+ *
+ * This register configures the core after power-on. Do not make changes to this
+ * register after initializing the host.
+ */
+union cvmx_usbcx_hcfg {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_hcfg_s
+	 * @fslssupp: FS- and LS-Only Support (FSLSSupp)
+	 *	The application uses this bit to control the core's enumeration
+	 *	speed. Using this bit, the application can make the core
+	 *	enumerate as a FS host, even if the connected device supports
+	 *	HS traffic. Do not make changes to this field after initial
+	 *	programming.
+	 *	* 1'b0: HS/FS/LS, based on the maximum speed supported by
+	 *	the connected device
+	 *	* 1'b1: FS/LS-only, even if the connected device can support HS
+	 * @fslspclksel: FS/LS PHY Clock Select (FSLSPclkSel)
+	 *	When the core is in FS Host mode
+	 *	* 2'b00: PHY clock is running at 30/60 MHz
+	 *	* 2'b01: PHY clock is running at 48 MHz
+	 *	* Others: Reserved
+	 *	When the core is in LS Host mode
+	 *	* 2'b00: PHY clock is running at 30/60 MHz. When the
+	 *	UTMI+/ULPI PHY Low Power mode is not selected, use
+	 *	30/60 MHz.
+	 *	* 2'b01: PHY clock is running at 48 MHz. When the UTMI+
+	 *	PHY Low Power mode is selected, use 48MHz if the PHY
+	 *	supplies a 48 MHz clock during LS mode.
+	 *	* 2'b10: PHY clock is running at 6 MHz. In USB 1.1 FS mode,
+	 *	use 6 MHz when the UTMI+ PHY Low Power mode is
+	 *	selected and the PHY supplies a 6 MHz clock during LS
+	 *	mode. If you select a 6 MHz clock during LS mode, you must
+	 *	do a soft reset.
+	 *	* 2'b11: Reserved
+	 */
+	struct cvmx_usbcx_hcfg_s {
+		uint32_t reserved_3_31	: 29;
+		uint32_t fslssupp	: 1;
+		uint32_t fslspclksel	: 2;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_hcint#
+ *
+ * Host Channel-n Interrupt Register (HCINT)
+ *
+ * This register indicates the status of a channel with respect to USB- and
+ * AHB-related events. The application must read this register when the Host
+ * Channels Interrupt bit of the Core Interrupt register (GINTSTS.HChInt) is
+ * set. Before the application can read this register, it must first read
+ * the Host All Channels Interrupt (HAINT) register to get the exact channel
+ * number for the Host Channel-n Interrupt register. The application must clear
+ * the appropriate bit in this register to clear the corresponding bits in the
+ * HAINT and GINTSTS registers.
+ */
+union cvmx_usbcx_hcintx {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_hcintx_s
+	 * @datatglerr: Data Toggle Error (DataTglErr)
+	 * @frmovrun: Frame Overrun (FrmOvrun)
+	 * @bblerr: Babble Error (BblErr)
+	 * @xacterr: Transaction Error (XactErr)
+	 * @nyet: NYET Response Received Interrupt (NYET)
+	 * @ack: ACK Response Received Interrupt (ACK)
+	 * @nak: NAK Response Received Interrupt (NAK)
+	 * @stall: STALL Response Received Interrupt (STALL)
+	 * @ahberr: This bit is always 0x0.
+	 * @chhltd: Channel Halted (ChHltd)
+	 *	Indicates the transfer completed abnormally either because of
+	 *	any USB transaction error or in response to disable request by
+	 *	the application.
+	 * @xfercompl: Transfer Completed (XferCompl)
+	 *	Transfer completed normally without any errors.
+	 */
+	struct cvmx_usbcx_hcintx_s {
+		uint32_t reserved_11_31	: 21;
+		uint32_t datatglerr	: 1;
+		uint32_t frmovrun	: 1;
+		uint32_t bblerr		: 1;
+		uint32_t xacterr	: 1;
+		uint32_t nyet		: 1;
+		uint32_t ack		: 1;
+		uint32_t nak		: 1;
+		uint32_t stall		: 1;
+		uint32_t ahberr		: 1;
+		uint32_t chhltd		: 1;
+		uint32_t xfercompl	: 1;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_hcintmsk#
+ *
+ * Host Channel-n Interrupt Mask Register (HCINTMSKn)
+ *
+ * This register reflects the mask for each channel status described in the
+ * previous section.
+ * Mask interrupt: 1'b0 Unmask interrupt: 1'b1
+ */
+union cvmx_usbcx_hcintmskx {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_hcintmskx_s
+	 * @datatglerrmsk: Data Toggle Error Mask (DataTglErrMsk)
+	 * @frmovrunmsk: Frame Overrun Mask (FrmOvrunMsk)
+	 * @bblerrmsk: Babble Error Mask (BblErrMsk)
+	 * @xacterrmsk: Transaction Error Mask (XactErrMsk)
+	 * @nyetmsk: NYET Response Received Interrupt Mask (NyetMsk)
+	 * @ackmsk: ACK Response Received Interrupt Mask (AckMsk)
+	 * @nakmsk: NAK Response Received Interrupt Mask (NakMsk)
+	 * @stallmsk: STALL Response Received Interrupt Mask (StallMsk)
+	 * @ahberrmsk: AHB Error Mask (AHBErrMsk)
+	 * @chhltdmsk: Channel Halted Mask (ChHltdMsk)
+	 * @xfercomplmsk: Transfer Completed Mask (XferComplMsk)
+	 */
+	struct cvmx_usbcx_hcintmskx_s {
+		uint32_t reserved_11_31	: 21;
+		uint32_t datatglerrmsk	: 1;
+		uint32_t frmovrunmsk	: 1;
+		uint32_t bblerrmsk	: 1;
+		uint32_t xacterrmsk	: 1;
+		uint32_t nyetmsk	: 1;
+		uint32_t ackmsk		: 1;
+		uint32_t nakmsk		: 1;
+		uint32_t stallmsk	: 1;
+		uint32_t ahberrmsk	: 1;
+		uint32_t chhltdmsk	: 1;
+		uint32_t xfercomplmsk	: 1;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_hcsplt#
+ *
+ * Host Channel-n Split Control Register (HCSPLT)
+ *
+ */
+union cvmx_usbcx_hcspltx {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_hcspltx_s
+	 * @spltena: Split Enable (SpltEna)
+	 *	The application sets this field to indicate that this channel is
+	 *	enabled to perform split transactions.
+	 * @compsplt: Do Complete Split (CompSplt)
+	 *	The application sets this field to request the OTG host to
+	 *	perform a complete split transaction.
+	 * @xactpos: Transaction Position (XactPos)
+	 *	This field is used to determine whether to send all, first,
+	 *	middle, or last payloads with each OUT transaction.
+	 *	* 2'b11: All. This is the entire data payload is of this
+	 *	transaction (which is less than or equal to 188 bytes).
+	 *	* 2'b10: Begin. This is the first data payload of this
+	 *	transaction (which is larger than 188 bytes).
+	 *	* 2'b00: Mid. This is the middle payload of this transaction
+	 *	(which is larger than 188 bytes).
+	 *	* 2'b01: End. This is the last payload of this transaction
+	 *	(which is larger than 188 bytes).
+	 * @hubaddr: Hub Address (HubAddr)
+	 *	This field holds the device address of the transaction
+	 *	translator's hub.
+	 * @prtaddr: Port Address (PrtAddr)
+	 *	This field is the port number of the recipient transaction
+	 *	translator.
+	 */
+	struct cvmx_usbcx_hcspltx_s {
+		uint32_t spltena	: 1;
+		uint32_t reserved_17_30	: 14;
+		uint32_t compsplt	: 1;
+		uint32_t xactpos	: 2;
+		uint32_t hubaddr	: 7;
+		uint32_t prtaddr	: 7;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_hctsiz#
+ *
+ * Host Channel-n Transfer Size Register (HCTSIZ)
+ *
+ */
+union cvmx_usbcx_hctsizx {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_hctsizx_s
+	 * @dopng: Do Ping (DoPng)
+	 *	Setting this field to 1 directs the host to do PING protocol.
+	 * @pid: PID (Pid)
+	 *	The application programs this field with the type of PID to use
+	 *	for the initial transaction. The host will maintain this field
+	 *	for the rest of the transfer.
+	 *	* 2'b00: DATA0
+	 *	* 2'b01: DATA2
+	 *	* 2'b10: DATA1
+	 *	* 2'b11: MDATA (non-control)/SETUP (control)
+	 * @pktcnt: Packet Count (PktCnt)
+	 *	This field is programmed by the application with the expected
+	 *	number of packets to be transmitted (OUT) or received (IN).
+	 *	The host decrements this count on every successful
+	 *	transmission or reception of an OUT/IN packet. Once this count
+	 *	reaches zero, the application is interrupted to indicate normal
+	 *	completion.
+	 * @xfersize: Transfer Size (XferSize)
+	 *	For an OUT, this field is the number of data bytes the host will
+	 *	send during the transfer.
+	 *	For an IN, this field is the buffer size that the application
+	 *	has reserved for the transfer. The application is expected to
+	 *	program this field as an integer multiple of the maximum packet
+	 *	size for IN transactions (periodic and non-periodic).
+	 */
+	struct cvmx_usbcx_hctsizx_s {
+		uint32_t dopng		: 1;
+		uint32_t pid		: 2;
+		uint32_t pktcnt		: 10;
+		uint32_t xfersize	: 19;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_hfir
+ *
+ * Host Frame Interval Register (HFIR)
+ *
+ * This register stores the frame interval information for the current speed to
+ * which the O2P USB core has enumerated.
+ */
+union cvmx_usbcx_hfir {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_hfir_s
+	 * @frint: Frame Interval (FrInt)
+	 *	The value that the application programs to this field specifies
+	 *	the interval between two consecutive SOFs (FS) or micro-
+	 *	SOFs (HS) or Keep-Alive tokens (HS). This field contains the
+	 *	number of PHY clocks that constitute the required frame
+	 *	interval. The default value set in this field for a FS operation
+	 *	when the PHY clock frequency is 60 MHz. The application can
+	 *	write a value to this register only after the Port Enable bit of
+	 *	the Host Port Control and Status register (HPRT.PrtEnaPort)
+	 *	has been set. If no value is programmed, the core calculates
+	 *	the value based on the PHY clock specified in the FS/LS PHY
+	 *	Clock Select field of the Host Configuration register
+	 *	(HCFG.FSLSPclkSel). Do not change the value of this field
+	 *	after the initial configuration.
+	 *	* 125 us (PHY clock frequency for HS)
+	 *	* 1 ms (PHY clock frequency for FS/LS)
+	 */
+	struct cvmx_usbcx_hfir_s {
+		uint32_t reserved_16_31	: 16;
+		uint32_t frint		: 16;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_hfnum
+ *
+ * Host Frame Number/Frame Time Remaining Register (HFNUM)
+ *
+ * This register indicates the current frame number.
+ * It also indicates the time remaining (in terms of the number of PHY clocks)
+ * in the current (micro)frame.
+ */
+union cvmx_usbcx_hfnum {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_hfnum_s
+	 * @frrem: Frame Time Remaining (FrRem)
+	 *	Indicates the amount of time remaining in the current
+	 *	microframe (HS) or frame (FS/LS), in terms of PHY clocks.
+	 *	This field decrements on each PHY clock. When it reaches
+	 *	zero, this field is reloaded with the value in the Frame
+	 *	Interval register and a new SOF is transmitted on the USB.
+	 * @frnum: Frame Number (FrNum)
+	 *	This field increments when a new SOF is transmitted on the
+	 *	USB, and is reset to 0 when it reaches 16'h3FFF.
+	 */
+	struct cvmx_usbcx_hfnum_s {
+		uint32_t frrem	: 16;
+		uint32_t frnum	: 16;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_hprt
+ *
+ * Host Port Control and Status Register (HPRT)
+ *
+ * This register is available in both Host and Device modes.
+ * Currently, the OTG Host supports only one port.
+ * A single register holds USB port-related information such as USB reset,
+ * enable, suspend, resume, connect status, and test mode for each port. The
+ * R_SS_WC bits in this register can trigger an interrupt to the application
+ * through the Host Port Interrupt bit of the Core Interrupt register
+ * (GINTSTS.PrtInt). On a Port Interrupt, the application must read this
+ * register and clear the bit that caused the interrupt. For the R_SS_WC bits,
+ * the application must write a 1 to the bit to clear the interrupt.
+ */
+union cvmx_usbcx_hprt {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_hprt_s
+	 * @prtspd: Port Speed (PrtSpd)
+	 *	Indicates the speed of the device attached to this port.
+	 *	* 2'b00: High speed
+	 *	* 2'b01: Full speed
+	 *	* 2'b10: Low speed
+	 *	* 2'b11: Reserved
+	 * @prttstctl: Port Test Control (PrtTstCtl)
+	 *	The application writes a nonzero value to this field to put
+	 *	the port into a Test mode, and the corresponding pattern is
+	 *	signaled on the port.
+	 *	* 4'b0000: Test mode disabled
+	 *	* 4'b0001: Test_J mode
+	 *	* 4'b0010: Test_K mode
+	 *	* 4'b0011: Test_SE0_NAK mode
+	 *	* 4'b0100: Test_Packet mode
+	 *	* 4'b0101: Test_Force_Enable
+	 *	* Others: Reserved
+	 *	PrtSpd must be zero (i.e. the interface must be in high-speed
+	 *	mode) to use the PrtTstCtl test modes.
+	 * @prtpwr: Port Power (PrtPwr)
+	 *	The application uses this field to control power to this port,
+	 *	and the core clears this bit on an overcurrent condition.
+	 *	* 1'b0: Power off
+	 *	* 1'b1: Power on
+	 * @prtlnsts: Port Line Status (PrtLnSts)
+	 *	Indicates the current logic level USB data lines
+	 *	* Bit [10]: Logic level of D-
+	 *	* Bit [11]: Logic level of D+
+	 * @prtrst: Port Reset (PrtRst)
+	 *	When the application sets this bit, a reset sequence is
+	 *	started on this port. The application must time the reset
+	 *	period and clear this bit after the reset sequence is
+	 *	complete.
+	 *	* 1'b0: Port not in reset
+	 *	* 1'b1: Port in reset
+	 *	The application must leave this bit set for at least a
+	 *	minimum duration mentioned below to start a reset on the
+	 *	port. The application can leave it set for another 10 ms in
+	 *	addition to the required minimum duration, before clearing
+	 *	the bit, even though there is no maximum limit set by the
+	 *	USB standard.
+	 *	* High speed: 50 ms
+	 *	* Full speed/Low speed: 10 ms
+	 * @prtsusp: Port Suspend (PrtSusp)
+	 *	The application sets this bit to put this port in Suspend
+	 *	mode. The core only stops sending SOFs when this is set.
+	 *	To stop the PHY clock, the application must set the Port
+	 *	Clock Stop bit, which will assert the suspend input pin of
+	 *	the PHY.
+	 *	The read value of this bit reflects the current suspend
+	 *	status of the port. This bit is cleared by the core after a
+	 *	remote wakeup signal is detected or the application sets
+	 *	the Port Reset bit or Port Resume bit in this register or the
+	 *	Resume/Remote Wakeup Detected Interrupt bit or
+	 *	Disconnect Detected Interrupt bit in the Core Interrupt
+	 *	register (GINTSTS.WkUpInt or GINTSTS.DisconnInt,
+	 *	respectively).
+	 *	* 1'b0: Port not in Suspend mode
+	 *	* 1'b1: Port in Suspend mode
+	 * @prtres: Port Resume (PrtRes)
+	 *	The application sets this bit to drive resume signaling on
+	 *	the port. The core continues to drive the resume signal
+	 *	until the application clears this bit.
+	 *	If the core detects a USB remote wakeup sequence, as
+	 *	indicated by the Port Resume/Remote Wakeup Detected
+	 *	Interrupt bit of the Core Interrupt register
+	 *	(GINTSTS.WkUpInt), the core starts driving resume
+	 *	signaling without application intervention and clears this bit
+	 *	when it detects a disconnect condition. The read value of
+	 *	this bit indicates whether the core is currently driving
+	 *	resume signaling.
+	 *	* 1'b0: No resume driven
+	 *	* 1'b1: Resume driven
+	 * @prtovrcurrchng: Port Overcurrent Change (PrtOvrCurrChng)
+	 *	The core sets this bit when the status of the Port
+	 *	Overcurrent Active bit (bit 4) in this register changes.
+	 * @prtovrcurract: Port Overcurrent Active (PrtOvrCurrAct)
+	 *	Indicates the overcurrent condition of the port.
+	 *	* 1'b0: No overcurrent condition
+	 *	* 1'b1: Overcurrent condition
+	 * @prtenchng: Port Enable/Disable Change (PrtEnChng)
+	 *	The core sets this bit when the status of the Port Enable bit
+	 *	[2] of this register changes.
+	 * @prtena: Port Enable (PrtEna)
+	 *	A port is enabled only by the core after a reset sequence,
+	 *	and is disabled by an overcurrent condition, a disconnect
+	 *	condition, or by the application clearing this bit. The
+	 *	application cannot set this bit by a register write. It can only
+	 *	clear it to disable the port. This bit does not trigger any
+	 *	interrupt to the application.
+	 *	* 1'b0: Port disabled
+	 *	* 1'b1: Port enabled
+	 * @prtconndet: Port Connect Detected (PrtConnDet)
+	 *	The core sets this bit when a device connection is detected
+	 *	to trigger an interrupt to the application using the Host Port
+	 *	Interrupt bit of the Core Interrupt register (GINTSTS.PrtInt).
+	 *	The application must write a 1 to this bit to clear the
+	 *	interrupt.
+	 * @prtconnsts: Port Connect Status (PrtConnSts)
+	 *	* 0: No device is attached to the port.
+	 *	* 1: A device is attached to the port.
+	 */
+	struct cvmx_usbcx_hprt_s {
+		uint32_t reserved_19_31	: 13;
+		uint32_t prtspd		: 2;
+		uint32_t prttstctl	: 4;
+		uint32_t prtpwr		: 1;
+		uint32_t prtlnsts	: 2;
+		uint32_t reserved_9_9	: 1;
+		uint32_t prtrst		: 1;
+		uint32_t prtsusp	: 1;
+		uint32_t prtres		: 1;
+		uint32_t prtovrcurrchng	: 1;
+		uint32_t prtovrcurract	: 1;
+		uint32_t prtenchng	: 1;
+		uint32_t prtena		: 1;
+		uint32_t prtconndet	: 1;
+		uint32_t prtconnsts	: 1;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_hptxfsiz
+ *
+ * Host Periodic Transmit FIFO Size Register (HPTXFSIZ)
+ *
+ * This register holds the size and the memory start address of the Periodic
+ * TxFIFO, as shown in Figures 310 and 311.
+ */
+union cvmx_usbcx_hptxfsiz {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_hptxfsiz_s
+	 * @ptxfsize: Host Periodic TxFIFO Depth (PTxFSize)
+	 *	This value is in terms of 32-bit words.
+	 *	* Minimum value is 16
+	 *	* Maximum value is 32768
+	 * @ptxfstaddr: Host Periodic TxFIFO Start Address (PTxFStAddr)
+	 */
+	struct cvmx_usbcx_hptxfsiz_s {
+		uint32_t ptxfsize	: 16;
+		uint32_t ptxfstaddr	: 16;
+	} s;
+};
+
+/**
+ * cvmx_usbc#_hptxsts
+ *
+ * Host Periodic Transmit FIFO/Queue Status Register (HPTXSTS)
+ *
+ * This read-only register contains the free space information for the Periodic
+ * TxFIFO and the Periodic Transmit Request Queue
+ */
+union cvmx_usbcx_hptxsts {
+	uint32_t u32;
+	/**
+	 * struct cvmx_usbcx_hptxsts_s
+	 * @ptxqtop: Top of the Periodic Transmit Request Queue (PTxQTop)
+	 *	This indicates the entry in the Periodic Tx Request Queue that
+	 *	is currently being processes by the MAC.
+	 *	This register is used for debugging.
+	 *	* Bit [31]: Odd/Even (micro)frame
+	 *	- 1'b0: send in even (micro)frame
+	 *	- 1'b1: send in odd (micro)frame
+	 *	* Bits [30:27]: Channel/endpoint number
+	 *	* Bits [26:25]: Type
+	 *	- 2'b00: IN/OUT
+	 *	- 2'b01: Zero-length packet
+	 *	- 2'b10: CSPLIT
+	 *	- 2'b11: Disable channel command
+	 *	* Bit [24]: Terminate (last entry for the selected
+	 *	channel/endpoint)
+	 * @ptxqspcavail: Periodic Transmit Request Queue Space Available
+	 *	(PTxQSpcAvail)
+	 *	Indicates the number of free locations available to be written
+	 *	in the Periodic Transmit Request Queue. This queue holds both
+	 *	IN and OUT requests.
+	 *	* 8'h0: Periodic Transmit Request Queue is full
+	 *	* 8'h1: 1 location available
+	 *	* 8'h2: 2 locations available
+	 *	* n: n locations available (0..8)
+	 *	* Others: Reserved
+	 * @ptxfspcavail: Periodic Transmit Data FIFO Space Available
+	 *		  (PTxFSpcAvail)
+	 *	Indicates the number of free locations available to be written
+	 *	to in the Periodic TxFIFO.
+	 *	Values are in terms of 32-bit words
+	 *	* 16'h0: Periodic TxFIFO is full
+	 *	* 16'h1: 1 word available
+	 *	* 16'h2: 2 words available
+	 *	* 16'hn: n words available (where 0..32768)
+	 *	* 16'h8000: 32768 words available
+	 *	* Others: Reserved
+	 */
+	struct cvmx_usbcx_hptxsts_s {
+		uint32_t ptxqtop	: 8;
+		uint32_t ptxqspcavail	: 8;
+		uint32_t ptxfspcavail	: 16;
+	} s;
+};
+
+/**
+ * cvmx_usbn#_clk_ctl
+ *
+ * USBN_CLK_CTL = USBN's Clock Control
+ *
+ * This register is used to control the frequency of the hclk and the
+ * hreset and phy_rst signals.
+ */
+union cvmx_usbnx_clk_ctl {
+	uint64_t u64;
+	/**
+	 * struct cvmx_usbnx_clk_ctl_s
+	 * @divide2: The 'hclk' used by the USB subsystem is derived
+	 *	from the eclk.
+	 *	Also see the field DIVIDE. DIVIDE2<1> must currently
+	 *	be zero because it is not implemented, so the maximum
+	 *	ratio of eclk/hclk is currently 16.
+	 *	The actual divide number for hclk is:
+	 *	(DIVIDE2 + 1) * (DIVIDE + 1)
+	 * @hclk_rst: When this field is '0' the HCLK-DIVIDER used to
+	 *	generate the hclk in the USB Subsystem is held
+	 *	in reset. This bit must be set to '0' before
+	 *	changing the value os DIVIDE in this register.
+	 *	The reset to the HCLK_DIVIDERis also asserted
+	 *	when core reset is asserted.
+	 * @p_x_on: Force USB-PHY on during suspend.
+	 *	'1' USB-PHY XO block is powered-down during
+	 *	suspend.
+	 *	'0' USB-PHY XO block is powered-up during
+	 *	suspend.
+	 *	The value of this field must be set while POR is
+	 *	active.
+	 * @p_rtype: PHY reference clock type
+	 *	On CN50XX/CN52XX/CN56XX the values are:
+	 *		'0' The USB-PHY uses a 12MHz crystal as a clock source
+	 *		    at the USB_XO and USB_XI pins.
+	 *		'1' Reserved.
+	 *		'2' The USB_PHY uses 12/24/48MHz 2.5V board clock at the
+	 *		    USB_XO pin. USB_XI should be tied to ground in this
+	 *		    case.
+	 *		'3' Reserved.
+	 *	On CN3xxx bits 14 and 15 are p_xenbn and p_rclk and values are:
+	 *		'0' Reserved.
+	 *		'1' Reserved.
+	 *		'2' The PHY PLL uses the XO block output as a reference.
+	 *		    The XO block uses an external clock supplied on the
+	 *		    XO pin. USB_XI should be tied to ground for this
+	 *		    usage.
+	 *		'3' The XO block uses the clock from a crystal.
+	 * @p_com_on: '0' Force USB-PHY XO Bias, Bandgap and PLL to
+	 *	remain powered in Suspend Mode.
+	 *	'1' The USB-PHY XO Bias, Bandgap and PLL are
+	 *	powered down in suspend mode.
+	 *	The value of this field must be set while POR is
+	 *	active.
+	 * @p_c_sel: Phy clock speed select.
+	 *	Selects the reference clock / crystal frequency.
+	 *	'11': Reserved
+	 *	'10': 48 MHz (reserved when a crystal is used)
+	 *	'01': 24 MHz (reserved when a crystal is used)
+	 *	'00': 12 MHz
+	 *	The value of this field must be set while POR is
+	 *	active.
+	 *	NOTE: if a crystal is used as a reference clock,
+	 *	this field must be set to 12 MHz.
+	 * @cdiv_byp: Used to enable the bypass input to the USB_CLK_DIV.
+	 * @sd_mode: Scaledown mode for the USBC. Control timing events
+	 *	in the USBC, for normal operation this must be '0'.
+	 * @s_bist: Starts bist on the hclk memories, during the '0'
+	 *	to '1' transition.
+	 * @por: Power On Reset for the PHY.
+	 *	Resets all the PHYS registers and state machines.
+	 * @enable: When '1' allows the generation of the hclk. When
+	 *	'0' the hclk will not be generated. SEE DIVIDE
+	 *	field of this register.
+	 * @prst: When this field is '0' the reset associated with
+	 *	the phy_clk functionality in the USB Subsystem is
+	 *	help in reset. This bit should not be set to '1'
+	 *	until the time it takes 6 clocks (hclk or phy_clk,
+	 *	whichever is slower) has passed. Under normal
+	 *	operation once this bit is set to '1' it should not
+	 *	be set to '0'.
+	 * @hrst: When this field is '0' the reset associated with
+	 *	the hclk functioanlity in the USB Subsystem is
+	 *	held in reset.This bit should not be set to '1'
+	 *	until 12ms after phy_clk is stable. Under normal
+	 *	operation, once this bit is set to '1' it should
+	 *	not be set to '0'.
+	 * @divide: The frequency of 'hclk' used by the USB subsystem
+	 *	is the eclk frequency divided by the value of
+	 *	(DIVIDE2 + 1) * (DIVIDE + 1), also see the field
+	 *	DIVIDE2 of this register.
+	 *	The hclk frequency should be less than 125Mhz.
+	 *	After writing a value to this field the SW should
+	 *	read the field for the value written.
+	 *	The ENABLE field of this register should not be set
+	 *	until AFTER this field is set and then read.
+	 */
+	struct cvmx_usbnx_clk_ctl_s {
+		uint64_t reserved_20_63	: 44;
+		uint64_t divide2	: 2;
+		uint64_t hclk_rst	: 1;
+		uint64_t p_x_on		: 1;
+		uint64_t p_rtype	: 2;
+		uint64_t p_com_on	: 1;
+		uint64_t p_c_sel	: 2;
+		uint64_t cdiv_byp	: 1;
+		uint64_t sd_mode	: 2;
+		uint64_t s_bist		: 1;
+		uint64_t por		: 1;
+		uint64_t enable		: 1;
+		uint64_t prst		: 1;
+		uint64_t hrst		: 1;
+		uint64_t divide		: 3;
+	} s;
+};
+
+/**
+ * cvmx_usbn#_usbp_ctl_status
+ *
+ * USBN_USBP_CTL_STATUS = USBP Control And Status Register
+ *
+ * Contains general control and status information for the USBN block.
+ */
+union cvmx_usbnx_usbp_ctl_status {
+	uint64_t u64;
+	/**
+	 * struct cvmx_usbnx_usbp_ctl_status_s
+	 * @txrisetune: HS Transmitter Rise/Fall Time Adjustment
+	 * @txvreftune: HS DC Voltage Level Adjustment
+	 * @txfslstune: FS/LS Source Impedence Adjustment
+	 * @txhsxvtune: Transmitter High-Speed Crossover Adjustment
+	 * @sqrxtune: Squelch Threshold Adjustment
+	 * @compdistune: Disconnect Threshold Adjustment
+	 * @otgtune: VBUS Valid Threshold Adjustment
+	 * @otgdisable: OTG Block Disable
+	 * @portreset: Per_Port Reset
+	 * @drvvbus: Drive VBUS
+	 * @lsbist: Low-Speed BIST Enable.
+	 * @fsbist: Full-Speed BIST Enable.
+	 * @hsbist: High-Speed BIST Enable.
+	 * @bist_done: PHY Bist Done.
+	 *	Asserted at the end of the PHY BIST sequence.
+	 * @bist_err: PHY Bist Error.
+	 *	Indicates an internal error was detected during
+	 *	the BIST sequence.
+	 * @tdata_out: PHY Test Data Out.
+	 *	Presents either internaly generated signals or
+	 *	test register contents, based upon the value of
+	 *	test_data_out_sel.
+	 * @siddq: Drives the USBP (USB-PHY) SIDDQ input.
+	 *	Normally should be set to zero.
+	 *	When customers have no intent to use USB PHY
+	 *	interface, they should:
+	 *	- still provide 3.3V to USB_VDD33, and
+	 *	- tie USB_REXT to 3.3V supply, and
+	 *	- set USBN*_USBP_CTL_STATUS[SIDDQ]=1
+	 * @txpreemphasistune: HS Transmitter Pre-Emphasis Enable
+	 * @dma_bmode: When set to 1 the L2C DMA address will be updated
+	 *	with byte-counts between packets. When set to 0
+	 *	the L2C DMA address is incremented to the next
+	 *	4-byte aligned address after adding byte-count.
+	 * @usbc_end: Bigendian input to the USB Core. This should be
+	 *	set to '0' for operation.
+	 * @usbp_bist: PHY, This is cleared '0' to run BIST on the USBP.
+	 * @tclk: PHY Test Clock, used to load TDATA_IN to the USBP.
+	 * @dp_pulld: PHY DP_PULLDOWN input to the USB-PHY.
+	 *	This signal enables the pull-down resistance on
+	 *	the D+ line. '1' pull down-resistance is connected
+	 *	to D+/ '0' pull down resistance is not connected
+	 *	to D+. When an A/B device is acting as a host
+	 *	(downstream-facing port), dp_pulldown and
+	 *	dm_pulldown are enabled. This must not toggle
+	 *	during normal opeartion.
+	 * @dm_pulld: PHY DM_PULLDOWN input to the USB-PHY.
+	 *	This signal enables the pull-down resistance on
+	 *	the D- line. '1' pull down-resistance is connected
+	 *	to D-. '0' pull down resistance is not connected
+	 *	to D-. When an A/B device is acting as a host
+	 *	(downstream-facing port), dp_pulldown and
+	 *	dm_pulldown are enabled. This must not toggle
+	 *	during normal opeartion.
+	 * @hst_mode: When '0' the USB is acting as HOST, when '1'
+	 *	USB is acting as device. This field needs to be
+	 *	set while the USB is in reset.
+	 * @tuning: Transmitter Tuning for High-Speed Operation.
+	 *	Tunes the current supply and rise/fall output
+	 *	times for high-speed operation.
+	 *	[20:19] == 11: Current supply increased
+	 *	approximately 9%
+	 *	[20:19] == 10: Current supply increased
+	 *	approximately 4.5%
+	 *	[20:19] == 01: Design default.
+	 *	[20:19] == 00: Current supply decreased
+	 *	approximately 4.5%
+	 *	[22:21] == 11: Rise and fall times are increased.
+	 *	[22:21] == 10: Design default.
+	 *	[22:21] == 01: Rise and fall times are decreased.
+	 *	[22:21] == 00: Rise and fall times are decreased
+	 *	further as compared to the 01 setting.
+	 * @tx_bs_enh: Transmit Bit Stuffing on [15:8].
+	 *	Enables or disables bit stuffing on data[15:8]
+	 *	when bit-stuffing is enabled.
+	 * @tx_bs_en: Transmit Bit Stuffing on [7:0].
+	 *	Enables or disables bit stuffing on data[7:0]
+	 *	when bit-stuffing is enabled.
+	 * @loop_enb: PHY Loopback Test Enable.
+	 *	'1': During data transmission the receive is
+	 *	enabled.
+	 *	'0': During data transmission the receive is
+	 *	disabled.
+	 *	Must be '0' for normal operation.
+	 * @vtest_enb: Analog Test Pin Enable.
+	 *	'1' The PHY's analog_test pin is enabled for the
+	 *	input and output of applicable analog test signals.
+	 *	'0' THe analog_test pin is disabled.
+	 * @bist_enb: Built-In Self Test Enable.
+	 *	Used to activate BIST in the PHY.
+	 * @tdata_sel: Test Data Out Select.
+	 *	'1' test_data_out[3:0] (PHY) register contents
+	 *	are output. '0' internaly generated signals are
+	 *	output.
+	 * @taddr_in: Mode Address for Test Interface.
+	 *	Specifies the register address for writing to or
+	 *	reading from the PHY test interface register.
+	 * @tdata_in: Internal Testing Register Input Data and Select
+	 *	This is a test bus. Data is present on [3:0],
+	 *	and its corresponding select (enable) is present
+	 *	on bits [7:4].
+	 * @ate_reset: Reset input from automatic test equipment.
+	 *	This is a test signal. When the USB Core is
+	 *	powered up (not in Susned Mode), an automatic
+	 *	tester can use this to disable phy_clock and
+	 *	free_clk, then re-eanable them with an aligned
+	 *	phase.
+	 *	'1': The phy_clk and free_clk outputs are
+	 *	disabled. "0": The phy_clock and free_clk outputs
+	 *	are available within a specific period after the
+	 *	de-assertion.
+	 */
+	struct cvmx_usbnx_usbp_ctl_status_s {
+		uint64_t txrisetune		: 1;
+		uint64_t txvreftune		: 4;
+		uint64_t txfslstune		: 4;
+		uint64_t txhsxvtune		: 2;
+		uint64_t sqrxtune		: 3;
+		uint64_t compdistune		: 3;
+		uint64_t otgtune		: 3;
+		uint64_t otgdisable		: 1;
+		uint64_t portreset		: 1;
+		uint64_t drvvbus		: 1;
+		uint64_t lsbist			: 1;
+		uint64_t fsbist			: 1;
+		uint64_t hsbist			: 1;
+		uint64_t bist_done		: 1;
+		uint64_t bist_err		: 1;
+		uint64_t tdata_out		: 4;
+		uint64_t siddq			: 1;
+		uint64_t txpreemphasistune	: 1;
+		uint64_t dma_bmode		: 1;
+		uint64_t usbc_end		: 1;
+		uint64_t usbp_bist		: 1;
+		uint64_t tclk			: 1;
+		uint64_t dp_pulld		: 1;
+		uint64_t dm_pulld		: 1;
+		uint64_t hst_mode		: 1;
+		uint64_t tuning			: 4;
+		uint64_t tx_bs_enh		: 1;
+		uint64_t tx_bs_en		: 1;
+		uint64_t loop_enb		: 1;
+		uint64_t vtest_enb		: 1;
+		uint64_t bist_enb		: 1;
+		uint64_t tdata_sel		: 1;
+		uint64_t taddr_in		: 4;
+		uint64_t tdata_in		: 8;
+		uint64_t ate_reset		: 1;
+	} s;
+};
+
+#endif /* __OCTEON_HCD_H__ */
-- 
cgit 


From a2dfef06e68321d4b2cc4a6671b318193f2a049f Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Thu, 10 Oct 2013 23:25:31 +0300
Subject: staging: octeon-usb: use dynamic allocation for transactions

Use dynamic memory allocation for transactions.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/octeon-hcd.c | 75 +--------------------------------
 1 file changed, 2 insertions(+), 73 deletions(-)

diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index da96461855ea..65b3d4cb61ad 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -257,9 +257,6 @@ enum cvmx_usb_pipe_flags {
 /* Maximum number of pipes that can be open at once */
 #define MAX_PIPES		32
 
-/* Maximum number of outstanding transactions across all pipes */
-#define MAX_TRANSACTIONS	256
-
 /* Maximum number of hardware channels supported by the USB block */
 #define MAX_CHANNELS		8
 
@@ -284,10 +281,6 @@ enum cvmx_usb_pipe_flags {
  */
 #define MAX_TRANSFER_PACKETS	((1<<10)-1)
 
-enum cvmx_usb_transaction_flags {
-	__CVMX_USB_TRANSACTION_FLAGS_IN_USE = 1<<16,
-};
-
 enum {
 	USB_CLOCK_TYPE_REF_12,
 	USB_CLOCK_TYPE_REF_24,
@@ -339,7 +332,6 @@ struct cvmx_usb_transaction {
 	struct cvmx_usb_transaction *prev;
 	struct cvmx_usb_transaction *next;
 	enum cvmx_usb_transfer type;
-	enum cvmx_usb_transaction_flags flags;
 	uint64_t buffer;
 	int buffer_length;
 	uint64_t control_header;
@@ -434,10 +426,7 @@ struct cvmx_usb_tx_fifo {
  * usbcx_hprt:		   Stored port status so we don't need to read a CSR to
  *			   determine splits.
  * pipe_for_channel:	   Map channels to pipes.
- * free_transaction_head:  List of free transactions head.
- * free_transaction_tail:  List of free transactions tail.
  * pipe:		   Storage for pipes.
- * transaction:		   Storage for transactions.
  * indent:		   Used by debug output to indent functions.
  * port_status:		   Last port status used for change notification.
  * free_pipes:		   List of all pipes that are currently closed.
@@ -452,10 +441,7 @@ struct cvmx_usb_state {
 	int idle_hardware_channels;
 	union cvmx_usbcx_hprt usbcx_hprt;
 	struct cvmx_usb_pipe *pipe_for_channel[MAX_CHANNELS];
-	struct cvmx_usb_transaction *free_transaction_head;
-	struct cvmx_usb_transaction *free_transaction_tail;
 	struct cvmx_usb_pipe pipe[MAX_PIPES];
-	struct cvmx_usb_transaction transaction[MAX_TRANSACTIONS];
 	int indent;
 	struct cvmx_usb_port_status port_status;
 	struct cvmx_usb_pipe_list free_pipes;
@@ -652,54 +638,6 @@ static int cvmx_usb_get_num_ports(void)
 	return arch_ports;
 }
 
-
-/**
- * Allocate a usb transaction for use
- *
- * @usb:	 USB device state populated by
- *		 cvmx_usb_initialize().
- *
- * Returns: Transaction or NULL
- */
-static inline struct cvmx_usb_transaction *__cvmx_usb_alloc_transaction(struct cvmx_usb_state *usb)
-{
-	struct cvmx_usb_transaction *t;
-	t = usb->free_transaction_head;
-	if (t) {
-		usb->free_transaction_head = t->next;
-		if (!usb->free_transaction_head)
-			usb->free_transaction_tail = NULL;
-	}
-	if (t) {
-		memset(t, 0, sizeof(*t));
-		t->flags = __CVMX_USB_TRANSACTION_FLAGS_IN_USE;
-	}
-	return t;
-}
-
-
-/**
- * Free a usb transaction
- *
- * @usb:	 USB device state populated by
- *		 cvmx_usb_initialize().
- * @transaction:
- *		 Transaction to free
- */
-static inline void __cvmx_usb_free_transaction(struct cvmx_usb_state *usb,
-					       struct cvmx_usb_transaction *transaction)
-{
-	transaction->flags = 0;
-	transaction->prev = NULL;
-	transaction->next = NULL;
-	if (usb->free_transaction_tail)
-		usb->free_transaction_tail->next = transaction;
-	else
-		usb->free_transaction_head = transaction;
-	usb->free_transaction_tail = transaction;
-}
-
-
 /**
  * Add a pipe to the tail of a list
  * @list:   List to add pipe to
@@ -802,11 +740,6 @@ static int cvmx_usb_initialize(struct cvmx_usb_state *usb,
 		int i;
 		usb->index = usb_port_number;
 
-		/* Initialize the transaction double linked list */
-		usb->free_transaction_head = NULL;
-		usb->free_transaction_tail = NULL;
-		for (i = 0; i < MAX_TRANSACTIONS; i++)
-			__cvmx_usb_free_transaction(usb, usb->transaction + i);
 		for (i = 0; i < MAX_PIPES; i++)
 			__cvmx_usb_append_pipe(&usb->free_pipes, usb->pipe + i);
 	}
@@ -2263,7 +2196,7 @@ static void __cvmx_usb_perform_complete(struct cvmx_usb_state *usb,
 					 transaction,
 					 transaction->actual_bytes,
 					 transaction->urb);
-	__cvmx_usb_free_transaction(usb, transaction);
+	kfree(transaction);
 done:
 	return;
 }
@@ -2310,7 +2243,7 @@ static struct cvmx_usb_transaction *__cvmx_usb_submit_transaction(struct cvmx_us
 	if (unlikely(pipe->transfer_type != type))
 		return NULL;
 
-	transaction = __cvmx_usb_alloc_transaction(usb);
+	transaction = kzalloc(sizeof(*transaction), GFP_ATOMIC);
 	if (unlikely(!transaction))
 		return NULL;
 
@@ -2480,10 +2413,6 @@ static int cvmx_usb_cancel(struct cvmx_usb_state *usb,
 	if (unlikely((pipe->flags & __CVMX_USB_PIPE_FLAGS_OPEN) == 0))
 		return -EINVAL;
 
-	/* Fail if this transaction already completed */
-	if (unlikely((transaction->flags & __CVMX_USB_TRANSACTION_FLAGS_IN_USE) == 0))
-		return -EINVAL;
-
 	/*
 	 * If the transaction is the HEAD of the queue and scheduled. We need to
 	 * treat it special
-- 
cgit 


From d2695a8a3de7247a4a034a6bb1ad332261db47d7 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Thu, 10 Oct 2013 23:25:32 +0300
Subject: staging: octeon-usb: use dynamic allocation for pipes

Use dynamic memory allocation for pipes.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/octeon-hcd.c | 40 +++------------------------------
 1 file changed, 3 insertions(+), 37 deletions(-)

diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 65b3d4cb61ad..6e72bf0e22e5 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -234,8 +234,6 @@ enum cvmx_usb_initialize_flags {
 /**
  * enum cvmx_usb_pipe_flags - internal flags for a pipe.
  *
- * @__CVMX_USB_PIPE_FLAGS_OPEN:	     Used internally to determine if a pipe is
- *				     open. Do not use.
  * @__CVMX_USB_PIPE_FLAGS_SCHEDULED: Used internally to determine if a pipe is
  *				     actively using hardware. Do not use.
  * @__CVMX_USB_PIPE_FLAGS_NEED_PING: Used internally to determine if a high
@@ -243,7 +241,6 @@ enum cvmx_usb_initialize_flags {
  *				     use.
  */
 enum cvmx_usb_pipe_flags {
-	__CVMX_USB_PIPE_FLAGS_OPEN	= 1 << 16,
 	__CVMX_USB_PIPE_FLAGS_SCHEDULED	= 1 << 17,
 	__CVMX_USB_PIPE_FLAGS_NEED_PING	= 1 << 18,
 };
@@ -254,9 +251,6 @@ enum cvmx_usb_pipe_flags {
 /* Maximum number of times to retry failed transactions */
 #define MAX_RETRIES		3
 
-/* Maximum number of pipes that can be open at once */
-#define MAX_PIPES		32
-
 /* Maximum number of hardware channels supported by the USB block */
 #define MAX_CHANNELS		8
 
@@ -429,7 +423,6 @@ struct cvmx_usb_tx_fifo {
  * pipe:		   Storage for pipes.
  * indent:		   Used by debug output to indent functions.
  * port_status:		   Last port status used for change notification.
- * free_pipes:		   List of all pipes that are currently closed.
  * idle_pipes:		   List of open pipes that have no transactions.
  * active_pipes:	   Active pipes indexed by transfer type.
  * frame_number:	   Increments every SOF interrupt for time keeping.
@@ -441,10 +434,8 @@ struct cvmx_usb_state {
 	int idle_hardware_channels;
 	union cvmx_usbcx_hprt usbcx_hprt;
 	struct cvmx_usb_pipe *pipe_for_channel[MAX_CHANNELS];
-	struct cvmx_usb_pipe pipe[MAX_PIPES];
 	int indent;
 	struct cvmx_usb_port_status port_status;
-	struct cvmx_usb_pipe_list free_pipes;
 	struct cvmx_usb_pipe_list idle_pipes;
 	struct cvmx_usb_pipe_list active_pipes[4];
 	uint64_t frame_number;
@@ -736,13 +727,7 @@ static int cvmx_usb_initialize(struct cvmx_usb_state *usb,
 	usb->init_flags = flags;
 
 	/* Initialize the USB state structure */
-	{
-		int i;
-		usb->index = usb_port_number;
-
-		for (i = 0; i < MAX_PIPES; i++)
-			__cvmx_usb_append_pipe(&usb->free_pipes, usb->pipe + i);
-	}
+	usb->index = usb_port_number;
 
 	/*
 	 * Power On Reset and PHY Initialization
@@ -1273,12 +1258,9 @@ static struct cvmx_usb_pipe *cvmx_usb_open_pipe(struct cvmx_usb_state *usb,
 	if (unlikely((hub_port < 0) || (hub_port > MAX_USB_HUB_PORT)))
 		return NULL;
 
-	/* Find a free pipe */
-	pipe = usb->free_pipes.head;
+	pipe = kzalloc(sizeof(*pipe), GFP_ATOMIC);
 	if (!pipe)
 		return NULL;
-	__cvmx_usb_remove_pipe(&usb->free_pipes, pipe);
-	pipe->flags = __CVMX_USB_PIPE_FLAGS_OPEN;
 	if ((device_speed == CVMX_USB_SPEED_HIGH) &&
 		(transfer_dir == CVMX_USB_DIRECTION_OUT) &&
 		(transfer_type == CVMX_USB_TRANSFER_BULK))
@@ -2237,9 +2219,6 @@ static struct cvmx_usb_transaction *__cvmx_usb_submit_transaction(struct cvmx_us
 {
 	struct cvmx_usb_transaction *transaction;
 
-	/* Fail if the pipe isn't open */
-	if (unlikely((pipe->flags & __CVMX_USB_PIPE_FLAGS_OPEN) == 0))
-		return NULL;
 	if (unlikely(pipe->transfer_type != type))
 		return NULL;
 
@@ -2409,10 +2388,6 @@ static int cvmx_usb_cancel(struct cvmx_usb_state *usb,
 			   struct cvmx_usb_pipe *pipe,
 			   struct cvmx_usb_transaction *transaction)
 {
-	/* Fail if the pipe isn't open */
-	if (unlikely((pipe->flags & __CVMX_USB_PIPE_FLAGS_OPEN) == 0))
-		return -EINVAL;
-
 	/*
 	 * If the transaction is the HEAD of the queue and scheduled. We need to
 	 * treat it special
@@ -2453,10 +2428,6 @@ static int cvmx_usb_cancel(struct cvmx_usb_state *usb,
 static int cvmx_usb_cancel_all(struct cvmx_usb_state *usb,
 			       struct cvmx_usb_pipe *pipe)
 {
-	/* Fail if the pipe isn't open */
-	if (unlikely((pipe->flags & __CVMX_USB_PIPE_FLAGS_OPEN) == 0))
-		return -EINVAL;
-
 	/* Simply loop through and attempt to cancel each transaction */
 	while (pipe->head) {
 		int result = cvmx_usb_cancel(usb, pipe, pipe->head);
@@ -2479,17 +2450,12 @@ static int cvmx_usb_cancel_all(struct cvmx_usb_state *usb,
 static int cvmx_usb_close_pipe(struct cvmx_usb_state *usb,
 			       struct cvmx_usb_pipe *pipe)
 {
-	/* Fail if the pipe isn't open */
-	if (unlikely((pipe->flags & __CVMX_USB_PIPE_FLAGS_OPEN) == 0))
-		return -EINVAL;
-
 	/* Fail if the pipe has pending transactions */
 	if (unlikely(pipe->head))
 		return -EBUSY;
 
-	pipe->flags = 0;
 	__cvmx_usb_remove_pipe(&usb->idle_pipes, pipe);
-	__cvmx_usb_append_pipe(&usb->free_pipes, pipe);
+	kfree(pipe);
 
 	return 0;
 }
-- 
cgit 


From 244544a1850a47b89f5dca4bb4d20f6800767f4e Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Thu, 10 Oct 2013 23:25:33 +0300
Subject: staging: octeon-usb: use list_del_init()

Replace list_del() + INIT_LIST_HEAD() with list_del_init().

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/octeon-hcd.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 6e72bf0e22e5..632190aa2ee4 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -2036,17 +2036,14 @@ static void octeon_usb_urb_complete_callback(struct cvmx_usb_state *usb,
 	urb->actual_length = bytes_transferred;
 	urb->hcpriv = NULL;
 
-	if (!list_empty(&urb->urb_list)) {
+	if (!list_empty(&urb->urb_list))
 		/*
 		 * It is on the dequeue_list, but we are going to call
 		 * usb_hcd_giveback_urb(), so we must clear it from
 		 * the list.  We got to it before the
 		 * octeon_usb_urb_dequeue_work() tasklet did.
 		 */
-		list_del(&urb->urb_list);
-		/* No longer on the dequeue_list. */
-		INIT_LIST_HEAD(&urb->urb_list);
-	}
+		list_del_init(&urb->urb_list);
 
 	/* For Isochronous transactions we need to update the URB packet status
 	   list from data in our private copy */
@@ -3233,9 +3230,7 @@ static void octeon_usb_urb_dequeue_work(unsigned long arg)
 
 	while (!list_empty(&priv->dequeue_list)) {
 		struct urb *urb = container_of(priv->dequeue_list.next, struct urb, urb_list);
-		list_del(&urb->urb_list);
-		/* not enqueued on dequeue_list */
-		INIT_LIST_HEAD(&urb->urb_list);
+		list_del_init(&urb->urb_list);
 		cvmx_usb_cancel(&priv->usb, urb->ep->hcpriv, urb->hcpriv);
 	}
 
-- 
cgit 


From f011fefa8a25980bce5f83f49d6524b3910d64aa Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Thu, 10 Oct 2013 23:25:34 +0300
Subject: staging: octeon-usb: use list_for_each_entry_safe()

Use list_for_each_entry_safe() when deleting all list items.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/octeon-hcd.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 632190aa2ee4..8e0fcbd173f2 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -3223,13 +3223,14 @@ static int octeon_usb_urb_enqueue(struct usb_hcd *hcd,
 
 static void octeon_usb_urb_dequeue_work(unsigned long arg)
 {
+	struct urb *urb;
+	struct urb *next;
 	unsigned long flags;
 	struct octeon_hcd *priv = (struct octeon_hcd *)arg;
 
 	spin_lock_irqsave(&priv->lock, flags);
 
-	while (!list_empty(&priv->dequeue_list)) {
-		struct urb *urb = container_of(priv->dequeue_list.next, struct urb, urb_list);
+	list_for_each_entry_safe(urb, next, &priv->dequeue_list, urb_list) {
 		list_del_init(&urb->urb_list);
 		cvmx_usb_cancel(&priv->usb, urb->ep->hcpriv, urb->hcpriv);
 	}
-- 
cgit 


From 4a23ee1bd7869c09364916b1ce33804d319a347f Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Thu, 10 Oct 2013 23:25:35 +0300
Subject: staging: octeon-usb: use list.h for pipes

Use list.h helpers for pipes.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/octeon-hcd.c | 105 ++++++++------------------------
 1 file changed, 24 insertions(+), 81 deletions(-)

diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 8e0fcbd173f2..36e4ee46cb44 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -345,7 +345,7 @@ struct cvmx_usb_transaction {
  *			  and some USB device. It contains a list of pending
  *			  request to the device.
  *
- * @prev:		Pipe before this one in the list
+ * @node:		List node for pipe list
  * @next:		Pipe after this one in the list
  * @head:		The first pending transaction
  * @tail:		The last pending transaction
@@ -369,8 +369,7 @@ struct cvmx_usb_transaction {
  *			complete should be sent on
  */
 struct cvmx_usb_pipe {
-	struct cvmx_usb_pipe *prev;
-	struct cvmx_usb_pipe *next;
+	struct list_head node;
 	struct cvmx_usb_transaction *head;
 	struct cvmx_usb_transaction *tail;
 	uint64_t interval;
@@ -390,17 +389,6 @@ struct cvmx_usb_pipe {
 	int8_t split_sc_frame;
 };
 
-/**
- * struct cvmx_usb_pipe_list
- *
- * @head: Head of the list, or NULL if empty.
- * @tail: Tail if the list, or NULL if empty.
- */
-struct cvmx_usb_pipe_list {
-	struct cvmx_usb_pipe *head;
-	struct cvmx_usb_pipe *tail;
-};
-
 struct cvmx_usb_tx_fifo {
 	struct {
 		int channel;
@@ -436,8 +424,8 @@ struct cvmx_usb_state {
 	struct cvmx_usb_pipe *pipe_for_channel[MAX_CHANNELS];
 	int indent;
 	struct cvmx_usb_port_status port_status;
-	struct cvmx_usb_pipe_list idle_pipes;
-	struct cvmx_usb_pipe_list active_pipes[4];
+	struct list_head idle_pipes;
+	struct list_head active_pipes[4];
 	uint64_t frame_number;
 	struct cvmx_usb_transaction *active_split;
 	struct cvmx_usb_tx_fifo periodic;
@@ -629,50 +617,6 @@ static int cvmx_usb_get_num_ports(void)
 	return arch_ports;
 }
 
-/**
- * Add a pipe to the tail of a list
- * @list:   List to add pipe to
- * @pipe:   Pipe to add
- */
-static inline void __cvmx_usb_append_pipe(struct cvmx_usb_pipe_list *list, struct cvmx_usb_pipe *pipe)
-{
-	pipe->next = NULL;
-	pipe->prev = list->tail;
-	if (list->tail)
-		list->tail->next = pipe;
-	else
-		list->head = pipe;
-	list->tail = pipe;
-}
-
-
-/**
- * Remove a pipe from a list
- * @list:   List to remove pipe from
- * @pipe:   Pipe to remove
- */
-static inline void __cvmx_usb_remove_pipe(struct cvmx_usb_pipe_list *list, struct cvmx_usb_pipe *pipe)
-{
-	if (list->head == pipe) {
-		list->head = pipe->next;
-		pipe->next = NULL;
-		if (list->head)
-			list->head->prev = NULL;
-		else
-			list->tail = NULL;
-	} else if (list->tail == pipe) {
-		list->tail = pipe->prev;
-		list->tail->next = NULL;
-		pipe->prev = NULL;
-	} else {
-		pipe->prev->next = pipe->next;
-		pipe->next->prev = pipe->prev;
-		pipe->prev = NULL;
-		pipe->next = NULL;
-	}
-}
-
-
 /**
  * Initialize a USB port for use. This must be called before any
  * other access to the Octeon USB port is made. The port starts
@@ -693,6 +637,7 @@ static int cvmx_usb_initialize(struct cvmx_usb_state *usb,
 	union cvmx_usbnx_clk_ctl usbn_clk_ctl;
 	union cvmx_usbnx_usbp_ctl_status usbn_usbp_ctl_status;
 	enum cvmx_usb_initialize_flags flags = 0;
+	int i;
 
 	/* At first allow 0-1 for the usb port number */
 	if ((usb_port_number < 0) || (usb_port_number > 1))
@@ -728,6 +673,9 @@ static int cvmx_usb_initialize(struct cvmx_usb_state *usb,
 
 	/* Initialize the USB state structure */
 	usb->index = usb_port_number;
+	INIT_LIST_HEAD(&usb->idle_pipes);
+	for (i = 0; i < ARRAY_SIZE(usb->active_pipes); i++)
+		INIT_LIST_HEAD(&usb->active_pipes[i]);
 
 	/*
 	 * Power On Reset and PHY Initialization
@@ -1003,11 +951,11 @@ static int cvmx_usb_shutdown(struct cvmx_usb_state *usb)
 	union cvmx_usbnx_clk_ctl usbn_clk_ctl;
 
 	/* Make sure all pipes are closed */
-	if (usb->idle_pipes.head ||
-		usb->active_pipes[CVMX_USB_TRANSFER_ISOCHRONOUS].head ||
-		usb->active_pipes[CVMX_USB_TRANSFER_INTERRUPT].head ||
-		usb->active_pipes[CVMX_USB_TRANSFER_CONTROL].head ||
-		usb->active_pipes[CVMX_USB_TRANSFER_BULK].head)
+	if (!list_empty(&usb->idle_pipes) ||
+	    !list_empty(&usb->active_pipes[CVMX_USB_TRANSFER_ISOCHRONOUS]) ||
+	    !list_empty(&usb->active_pipes[CVMX_USB_TRANSFER_INTERRUPT]) ||
+	    !list_empty(&usb->active_pipes[CVMX_USB_TRANSFER_CONTROL]) ||
+	    !list_empty(&usb->active_pipes[CVMX_USB_TRANSFER_BULK]))
 		return -EBUSY;
 
 	/* Disable the clocks and put them in power on reset */
@@ -1290,7 +1238,7 @@ static struct cvmx_usb_pipe *cvmx_usb_open_pipe(struct cvmx_usb_state *usb,
 	pipe->hub_port = hub_port;
 	pipe->pid_toggle = 0;
 	pipe->split_sc_frame = -1;
-	__cvmx_usb_append_pipe(&usb->idle_pipes, pipe);
+	list_add_tail(&pipe->node, &usb->idle_pipes);
 
 	/*
 	 * We don't need to tell the hardware about this pipe yet since
@@ -1919,10 +1867,11 @@ static void __cvmx_usb_start_channel(struct cvmx_usb_state *usb,
  *
  * Returns: Pipe or NULL if none are ready
  */
-static struct cvmx_usb_pipe *__cvmx_usb_find_ready_pipe(struct cvmx_usb_state *usb, struct cvmx_usb_pipe_list *list, uint64_t current_frame)
+static struct cvmx_usb_pipe *__cvmx_usb_find_ready_pipe(struct cvmx_usb_state *usb, struct list_head *list, uint64_t current_frame)
 {
-	struct cvmx_usb_pipe *pipe = list->head;
-	while (pipe) {
+	struct cvmx_usb_pipe *pipe;
+
+	list_for_each_entry(pipe, list, node) {
 		if (!(pipe->flags & __CVMX_USB_PIPE_FLAGS_SCHEDULED) && pipe->head &&
 			(pipe->next_tx_frame <= current_frame) &&
 			((pipe->split_sc_frame == -1) || ((((int)current_frame - (int)pipe->split_sc_frame) & 0x7f) < 0x40)) &&
@@ -1931,7 +1880,6 @@ static struct cvmx_usb_pipe *__cvmx_usb_find_ready_pipe(struct cvmx_usb_state *u
 			CVMX_PREFETCH(pipe->head, 0);
 			return pipe;
 		}
-		pipe = pipe->next;
 	}
 	return NULL;
 }
@@ -1998,13 +1946,11 @@ done:
 	 */
 	need_sof = 0;
 	for (ttype = CVMX_USB_TRANSFER_CONTROL; ttype <= CVMX_USB_TRANSFER_INTERRUPT; ttype++) {
-		pipe = usb->active_pipes[ttype].head;
-		while (pipe) {
+		list_for_each_entry(pipe, &usb->active_pipes[ttype], node) {
 			if (pipe->next_tx_frame > usb->frame_number) {
 				need_sof = 1;
 				break;
 			}
-			pipe = pipe->next;
 		}
 	}
 	USB_SET_FIELD32(CVMX_USBCX_GINTMSK(usb->index), union cvmx_usbcx_gintmsk, sofmsk, need_sof);
@@ -2166,11 +2112,8 @@ static void __cvmx_usb_perform_complete(struct cvmx_usb_state *usb,
 		transaction->prev->next = transaction->next;
 	else
 		pipe->head = transaction->next;
-	if (!pipe->head) {
-		__cvmx_usb_remove_pipe(usb->active_pipes + pipe->transfer_type, pipe);
-		__cvmx_usb_append_pipe(&usb->idle_pipes, pipe);
-
-	}
+	if (!pipe->head)
+		list_move_tail(&pipe->node, &usb->idle_pipes);
 	octeon_usb_urb_complete_callback(usb, complete_code, pipe,
 					 transaction,
 					 transaction->actual_bytes,
@@ -2247,8 +2190,8 @@ static struct cvmx_usb_transaction *__cvmx_usb_submit_transaction(struct cvmx_us
 				(usb->frame_number - pipe->next_tx_frame) % pipe->interval;
 		transaction->prev = NULL;
 		pipe->head = transaction;
-		__cvmx_usb_remove_pipe(&usb->idle_pipes, pipe);
-		__cvmx_usb_append_pipe(usb->active_pipes + pipe->transfer_type, pipe);
+		list_move_tail(&pipe->node,
+			       &usb->active_pipes[pipe->transfer_type]);
 	}
 	pipe->tail = transaction;
 
@@ -2451,7 +2394,7 @@ static int cvmx_usb_close_pipe(struct cvmx_usb_state *usb,
 	if (unlikely(pipe->head))
 		return -EBUSY;
 
-	__cvmx_usb_remove_pipe(&usb->idle_pipes, pipe);
+	list_del(&pipe->node);
 	kfree(pipe);
 
 	return 0;
-- 
cgit 


From 5669601d928b1d0af5935dafa340b7446c2f150c Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Thu, 10 Oct 2013 23:25:36 +0300
Subject: staging: octeon-usb: use list.h for transactions

Use list.h helpers for transactions.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon-usb/octeon-hcd.c | 77 +++++++++++++++------------------
 1 file changed, 36 insertions(+), 41 deletions(-)

diff --git a/drivers/staging/octeon-usb/octeon-hcd.c b/drivers/staging/octeon-usb/octeon-hcd.c
index 36e4ee46cb44..d118952c0a74 100644
--- a/drivers/staging/octeon-usb/octeon-hcd.c
+++ b/drivers/staging/octeon-usb/octeon-hcd.c
@@ -306,8 +306,7 @@ enum cvmx_usb_stage {
  *				 regardless of type. These are linked together
  *				 to form a list of pending requests for a pipe.
  *
- * @prev:		Transaction before this one in the pipe.
- * @next:		Transaction after this one in the pipe.
+ * @node:		List node for transactions in the pipe.
  * @type:		Type of transaction, duplicated of the pipe.
  * @flags:		State flags for this transaction.
  * @buffer:		User's physical buffer address to read/write.
@@ -323,8 +322,7 @@ enum cvmx_usb_stage {
  * @urb:		URB.
  */
 struct cvmx_usb_transaction {
-	struct cvmx_usb_transaction *prev;
-	struct cvmx_usb_transaction *next;
+	struct list_head node;
 	enum cvmx_usb_transfer type;
 	uint64_t buffer;
 	int buffer_length;
@@ -347,8 +345,7 @@ struct cvmx_usb_transaction {
  *
  * @node:		List node for pipe list
  * @next:		Pipe after this one in the list
- * @head:		The first pending transaction
- * @tail:		The last pending transaction
+ * @transactions:	List of pending transactions
  * @interval:		For periodic pipes, the interval between packets in
  *			frames
  * @next_tx_frame:	The next frame this pipe is allowed to transmit on
@@ -370,8 +367,7 @@ struct cvmx_usb_transaction {
  */
 struct cvmx_usb_pipe {
 	struct list_head node;
-	struct cvmx_usb_transaction *head;
-	struct cvmx_usb_transaction *tail;
+	struct list_head transactions;
 	uint64_t interval;
 	uint64_t next_tx_frame;
 	enum cvmx_usb_pipe_flags flags;
@@ -1219,6 +1215,8 @@ static struct cvmx_usb_pipe *cvmx_usb_open_pipe(struct cvmx_usb_state *usb,
 	pipe->max_packet = max_packet;
 	pipe->transfer_type = transfer_type;
 	pipe->transfer_dir = transfer_dir;
+	INIT_LIST_HEAD(&pipe->transactions);
+
 	/*
 	 * All pipes use interval to rate limit NAK processing. Force an
 	 * interval if one wasn't supplied
@@ -1444,7 +1442,9 @@ static void __cvmx_usb_start_channel_control(struct cvmx_usb_state *usb,
 					     int channel,
 					     struct cvmx_usb_pipe *pipe)
 {
-	struct cvmx_usb_transaction *transaction = pipe->head;
+	struct cvmx_usb_transaction *transaction =
+		list_first_entry(&pipe->transactions, typeof(*transaction),
+				 node);
 	union cvmx_usb_control_header *header =
 		cvmx_phys_to_ptr(transaction->control_header);
 	int bytes_to_transfer = transaction->buffer_length - transaction->actual_bytes;
@@ -1573,7 +1573,9 @@ static void __cvmx_usb_start_channel(struct cvmx_usb_state *usb,
 				     int channel,
 				     struct cvmx_usb_pipe *pipe)
 {
-	struct cvmx_usb_transaction *transaction = pipe->head;
+	struct cvmx_usb_transaction *transaction =
+		list_first_entry(&pipe->transactions, typeof(*transaction),
+				 node);
 
 	/* Make sure all writes to the DMA region get flushed */
 	CVMX_SYNCW;
@@ -1872,12 +1874,14 @@ static struct cvmx_usb_pipe *__cvmx_usb_find_ready_pipe(struct cvmx_usb_state *u
 	struct cvmx_usb_pipe *pipe;
 
 	list_for_each_entry(pipe, list, node) {
-		if (!(pipe->flags & __CVMX_USB_PIPE_FLAGS_SCHEDULED) && pipe->head &&
+		struct cvmx_usb_transaction *t =
+			list_first_entry(&pipe->transactions, typeof(*t), node);
+		if (!(pipe->flags & __CVMX_USB_PIPE_FLAGS_SCHEDULED) && t &&
 			(pipe->next_tx_frame <= current_frame) &&
 			((pipe->split_sc_frame == -1) || ((((int)current_frame - (int)pipe->split_sc_frame) & 0x7f) < 0x40)) &&
-			(!usb->active_split || (usb->active_split == pipe->head))) {
+			(!usb->active_split || (usb->active_split == t))) {
 			CVMX_PREFETCH(pipe, 128);
-			CVMX_PREFETCH(pipe->head, 0);
+			CVMX_PREFETCH(t, 0);
 			return pipe;
 		}
 	}
@@ -2104,15 +2108,8 @@ static void __cvmx_usb_perform_complete(struct cvmx_usb_state *usb,
 	}
 
 	/* Remove the transaction from the pipe list */
-	if (transaction->next)
-		transaction->next->prev = transaction->prev;
-	else
-		pipe->tail = transaction->prev;
-	if (transaction->prev)
-		transaction->prev->next = transaction->next;
-	else
-		pipe->head = transaction->next;
-	if (!pipe->head)
+	list_del(&transaction->node);
+	if (list_empty(&pipe->transactions))
 		list_move_tail(&pipe->node, &usb->idle_pipes);
 	octeon_usb_urb_complete_callback(usb, complete_code, pipe,
 					 transaction,
@@ -2180,24 +2177,19 @@ static struct cvmx_usb_transaction *__cvmx_usb_submit_transaction(struct cvmx_us
 	else
 		transaction->stage = CVMX_USB_STAGE_NON_CONTROL;
 
-	transaction->next = NULL;
-	if (pipe->tail) {
-		transaction->prev = pipe->tail;
-		transaction->prev->next = transaction;
+	if (!list_empty(&pipe->transactions)) {
+		list_add_tail(&transaction->node, &pipe->transactions);
 	} else {
-		if (pipe->next_tx_frame < usb->frame_number)
-			pipe->next_tx_frame = usb->frame_number + pipe->interval -
-				(usb->frame_number - pipe->next_tx_frame) % pipe->interval;
-		transaction->prev = NULL;
-		pipe->head = transaction;
+		list_add_tail(&transaction->node, &pipe->transactions);
 		list_move_tail(&pipe->node,
 			       &usb->active_pipes[pipe->transfer_type]);
-	}
-	pipe->tail = transaction;
 
-	/* We may need to schedule the pipe if this was the head of the pipe */
-	if (!transaction->prev)
+		/*
+		 * We may need to schedule the pipe if this was the head of the
+		 * pipe.
+		 */
 		__cvmx_usb_schedule(usb, 0);
+	}
 
 	return transaction;
 }
@@ -2332,8 +2324,8 @@ static int cvmx_usb_cancel(struct cvmx_usb_state *usb,
 	 * If the transaction is the HEAD of the queue and scheduled. We need to
 	 * treat it special
 	 */
-	if ((pipe->head == transaction) &&
-		(pipe->flags & __CVMX_USB_PIPE_FLAGS_SCHEDULED)) {
+	if (list_first_entry(&pipe->transactions, typeof(*transaction), node) ==
+	    transaction && (pipe->flags & __CVMX_USB_PIPE_FLAGS_SCHEDULED)) {
 		union cvmx_usbcx_hccharx usbc_hcchar;
 
 		usb->pipe_for_channel[pipe->channel] = NULL;
@@ -2368,9 +2360,11 @@ static int cvmx_usb_cancel(struct cvmx_usb_state *usb,
 static int cvmx_usb_cancel_all(struct cvmx_usb_state *usb,
 			       struct cvmx_usb_pipe *pipe)
 {
+	struct cvmx_usb_transaction *transaction, *next;
+
 	/* Simply loop through and attempt to cancel each transaction */
-	while (pipe->head) {
-		int result = cvmx_usb_cancel(usb, pipe, pipe->head);
+	list_for_each_entry_safe(transaction, next, &pipe->transactions, node) {
+		int result = cvmx_usb_cancel(usb, pipe, transaction);
 		if (unlikely(result != 0))
 			return result;
 	}
@@ -2391,7 +2385,7 @@ static int cvmx_usb_close_pipe(struct cvmx_usb_state *usb,
 			       struct cvmx_usb_pipe *pipe)
 {
 	/* Fail if the pipe has pending transactions */
-	if (unlikely(pipe->head))
+	if (!list_empty(&pipe->transactions))
 		return -EBUSY;
 
 	list_del(&pipe->node);
@@ -2499,7 +2493,8 @@ static int __cvmx_usb_poll_channel(struct cvmx_usb_state *usb, int channel)
 	CVMX_PREFETCH(pipe, 128);
 	if (!pipe)
 		return 0;
-	transaction = pipe->head;
+	transaction = list_first_entry(&pipe->transactions, typeof(*transaction),
+				       node);
 	CVMX_PREFETCH(transaction, 0);
 
 	/*
-- 
cgit 


From a7d7b0163178b85546a075276a81f27c8c24b786 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 11 Oct 2013 12:39:28 +0800
Subject: Staging: crystalhd: use vfree() instead of kfree()

Use vfree() instead of kfree() to free vmalloc()
allocated data.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/crystalhd/crystalhd_lnx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/crystalhd/crystalhd_lnx.c b/drivers/staging/crystalhd/crystalhd_lnx.c
index a874a2943575..190b9b924368 100644
--- a/drivers/staging/crystalhd/crystalhd_lnx.c
+++ b/drivers/staging/crystalhd/crystalhd_lnx.c
@@ -157,7 +157,7 @@ static int chd_dec_fetch_cdata(struct crystalhd_adp *adp,
 	if (rc) {
 		BCMLOG_ERR("failed to pull add_cdata sz:%x ua_off:%x\n",
 			   io->add_cdata_sz, (unsigned int)ua_off);
-		kfree(io->add_cdata);
+		vfree(io->add_cdata);
 		io->add_cdata = NULL;
 		return -ENODATA;
 	}
-- 
cgit 


From a22526e48d6aebc70ed1d19cc3d2724489775aa4 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 10 Oct 2013 16:07:59 -0700
Subject: staging: Remove unnecessary semicolons

These aren't necessary after switch, if and while statements.

Also remove some unnecessary braces where these
semicolons were removed around single statement
and some unnecessary blank lines.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/iio/adc/ad7291.c                |  2 +-
 drivers/staging/iio/cdc/ad7150.c                |  2 +-
 drivers/staging/imx-drm/imx-tve.c               |  2 +-
 drivers/staging/lustre/lustre/lvfs/lvfs_linux.c |  2 +-
 drivers/staging/rtl8188eu/core/rtw_recv.c       |  2 +-
 drivers/staging/rtl8192e/rtl8192e/rtl_core.c    | 10 ++--------
 6 files changed, 7 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/iio/adc/ad7291.c b/drivers/staging/iio/adc/ad7291.c
index 1dae1efe41c7..ccaa8d6f8bc7 100644
--- a/drivers/staging/iio/adc/ad7291.c
+++ b/drivers/staging/iio/adc/ad7291.c
@@ -290,7 +290,7 @@ static int ad7291_read_event_value(struct iio_dev *indio_dev,
 		return 0;
 	default:
 		return -EINVAL;
-	};
+	}
 }
 
 static int ad7291_write_event_value(struct iio_dev *indio_dev,
diff --git a/drivers/staging/iio/cdc/ad7150.c b/drivers/staging/iio/cdc/ad7150.c
index f4a0341cc70c..618d820eb525 100644
--- a/drivers/staging/iio/cdc/ad7150.c
+++ b/drivers/staging/iio/cdc/ad7150.c
@@ -300,7 +300,7 @@ static int ad7150_read_event_value(struct iio_dev *indio_dev,
 
 	default:
 		return -EINVAL;
-	};
+	}
 }
 
 static int ad7150_write_event_value(struct iio_dev *indio_dev,
diff --git a/drivers/staging/imx-drm/imx-tve.c b/drivers/staging/imx-drm/imx-tve.c
index 33d6525cf996..59dd4d560ce0 100644
--- a/drivers/staging/imx-drm/imx-tve.c
+++ b/drivers/staging/imx-drm/imx-tve.c
@@ -696,7 +696,7 @@ static int imx_tve_probe(struct platform_device *pdev)
 	if (val != 0x00100000) {
 		dev_err(&pdev->dev, "configuration register default value indicates this is not a TVEv2\n");
 		return -ENODEV;
-	};
+	}
 
 	/* disable cable detection for VGA mode */
 	ret = regmap_write(tve->regmap, TVE_CD_CONT_REG, 0);
diff --git a/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c b/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c
index f6268dcec542..ea3771550788 100644
--- a/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c
+++ b/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c
@@ -282,7 +282,7 @@ __s64 lprocfs_read_helper(struct lprocfs_counter *lc,
 		break;
 	default:
 		break;
-	};
+	}
 
 	return ret;
 }
diff --git a/drivers/staging/rtl8188eu/core/rtw_recv.c b/drivers/staging/rtl8188eu/core/rtw_recv.c
index ba8e53463d10..9f0f30f7069a 100644
--- a/drivers/staging/rtl8188eu/core/rtw_recv.c
+++ b/drivers/staging/rtl8188eu/core/rtw_recv.c
@@ -1586,7 +1586,7 @@ _func_enter_;
 
 		pfhdr->attrib.icv_len = pnfhdr->attrib.icv_len;
 		plist = get_next(plist);
-	};
+	}
 
 	/* free the defrag_q queue and return the prframe */
 	rtw_free_recvframe_queue(defrag_q, pfree_recv_queue);
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
index 7d322f3980e1..b01f6f5c2c44 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
@@ -1888,9 +1888,8 @@ void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
 	memcpy((unsigned char *)(skb->cb), &dev, sizeof(dev));
 	skb_push(skb, priv->rtllib->tx_headroom);
 	ret = rtl8192_tx(dev, skb);
-	if (ret != 0) {
+	if (ret != 0)
 		kfree_skb(skb);
-	};
 
 	if (queue_index != MGNT_QUEUE) {
 		priv->rtllib->stats.tx_bytes += (skb->len -
@@ -1898,7 +1897,6 @@ void rtl8192_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
 		priv->rtllib->stats.tx_packets++;
 	}
 
-
 	return;
 }
 
@@ -1930,15 +1928,11 @@ int rtl8192_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		tcb_desc->bTxEnableFwCalcDur = 1;
 		skb_push(skb, priv->rtllib->tx_headroom);
 		ret = rtl8192_tx(dev, skb);
-		if (ret != 0) {
+		if (ret != 0)
 			kfree_skb(skb);
-		};
 	}
 
-
-
 	return ret;
-
 }
 
 static void rtl8192_tx_isr(struct net_device *dev, int prio)
-- 
cgit 


From a3aee3687d4707a96fa49da2914dcced18760c29 Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Wed, 9 Oct 2013 14:39:52 +0800
Subject: usb: chipidea: udc: Fix spinlock recursion during bus reset

After configuration, the host also possible sends bus reset
at any time, at such situation, it will trigger below spinlock
recursion dump. This commit unlocks the spinlock before calling
gadget's disconnect.

BUG: spinlock recursion on CPU#0, swapper/0/0
 lock: 0xbf128014, .magic: dead4ead, .owner: swapper/0/0, .owner_cpu: 0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.11.0-next-20130910+ #106
[<80014e20>] (unwind_backtrace+0x0/0xec) from [<80011a6c>] (show_stack+0x10/0x14)
[<80011a6c>] (show_stack+0x10/0x14) from [<805c143c>] (dump_stack+0x94/0xbc)
[<805c143c>] (dump_stack+0x94/0xbc) from [<80282cf8>] (do_raw_spin_lock+0x16c/0x18c)
[<80282cf8>] (do_raw_spin_lock+0x16c/0x18c) from [<805c77e0>] (_raw_spin_lock_irqsave+0x50/0x5c)
[<805c77e0>] (_raw_spin_lock_irqsave+0x50/0x5c) from [<803cff88>] (ep_disable+0x24/0x110)
[<803cff88>] (ep_disable+0x24/0x110) from [<7f015d50>] (gserial_disconnect+0xa0/0x15c [u_serial])
[<7f015d50>] (gserial_disconnect+0xa0/0x15c [u_serial]) from [<7f01c06c>] (acm_disable+0xc/0x30 [usb_f_acm])
[<7f01c06c>] (acm_disable+0xc/0x30 [usb_f_acm]) from [<7f001478>] (reset_config.isra.10+0x34/0x5c [libcomposite])
[<7f001478>] (reset_config.isra.10+0x34/0x5c [libcomposite]) from [<7f0014d4>] (composite_disconnect+0x34/0x5c [libcomposite])
[<7f0014d4>] (composite_disconnect+0x34/0x5c [libcomposite]) from [<803d1024>] (udc_irq+0x770/0xce4)
[<803d1024>] (udc_irq+0x770/0xce4) from [<803cdcc0>] (ci_irq+0x98/0x164)
[<803cdcc0>] (ci_irq+0x98/0x164) from [<8007edfc>] (handle_irq_event_percpu+0x50/0x17c)
[<8007edfc>] (handle_irq_event_percpu+0x50/0x17c) from [<8007ef64>] (handle_irq_event+0x3c/0x5c)
[<8007ef64>] (handle_irq_event+0x3c/0x5c) from [<80081e98>] (handle_fasteoi_irq+0x98/0x168)
[<80081e98>] (handle_fasteoi_irq+0x98/0x168) from [<8007e598>] (generic_handle_irq+0x28/0x3c)
[<8007e598>] (generic_handle_irq+0x28/0x3c) from [<8000edf4>] (handle_IRQ+0x4c/0xb4)
[<8000edf4>] (handle_IRQ+0x4c/0xb4) from [<800085bc>] (gic_handle_irq+0x28/0x5c)
[<800085bc>] (gic_handle_irq+0x28/0x5c) from [<800125c0>] (__irq_svc+0x40/0x54)
Exception stack(0x8083bf68 to 0x8083bfb0)
bf60:                   81533b80 00000000 00096234 8001d760 8088e12c 00000000
bf80: 8083a000 8083a000 8084290c 805cb414 808428ac 8083a000 00000001 8083bfb0
bfa0: 8000f138 8000f13c 60000013 ffffffff
[<800125c0>] (__irq_svc+0x40/0x54) from [<8000f13c>] (arch_cpu_idle+0x30/0x3c)
[<8000f13c>] (arch_cpu_idle+0x30/0x3c) from [<8005eb94>] (cpu_startup_entry+0xf4/0x148)
[<8005eb94>] (cpu_startup_entry+0xf4/0x148) from [<807f1a2c>] (start_kernel+0x2c4/0x318)
BUG: spinlock lockup suspected on CPU#0, swapper/0/0
 lock: 0xbf128014, .magic: dead4ead, .owner: swapper/0/0, .owner_cpu: 0
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.11.0-next-20130910+ #106
[<80014e20>] (unwind_backtrace+0x0/0xec) from [<80011a6c>] (show_stack+0x10/0x14)
[<80011a6c>] (show_stack+0x10/0x14) from [<805c143c>] (dump_stack+0x94/0xbc)
[<805c143c>] (dump_stack+0x94/0xbc) from [<80282c94>] (do_raw_spin_lock+0x108/0x18c)
[<80282c94>] (do_raw_spin_lock+0x108/0x18c) from [<805c77e0>] (_raw_spin_lock_irqsave+0x50/0x5c)
[<805c77e0>] (_raw_spin_lock_irqsave+0x50/0x5c) from [<803cff88>] (ep_disable+0x24/0x110)
[<803cff88>] (ep_disable+0x24/0x110) from [<7f015d50>] (gserial_disconnect+0xa0/0x15c [u_serial])
[<7f015d50>] (gserial_disconnect+0xa0/0x15c [u_serial]) from [<7f01c06c>] (acm_disable+0xc/0x30 [usb_f_acm])
[<7f01c06c>] (acm_disable+0xc/0x30 [usb_f_acm]) from [<7f001478>] (reset_config.isra.10+0x34/0x5c [libcomposite])
[<7f001478>] (reset_config.isra.10+0x34/0x5c [libcomposite]) from [<7f0014d4>] (composite_disconnect+0x34/0x5c [libcomposite])
[<7f0014d4>] (composite_disconnect+0x34/0x5c [libcomposite]) from [<803d1024>] (udc_irq+0x770/0xce4)
[<803d1024>] (udc_irq+0x770/0xce4) from [<803cdcc0>] (ci_irq+0x98/0x164)
[<803cdcc0>] (ci_irq+0x98/0x164) from [<8007edfc>] (handle_irq_event_percpu+0x50/0x17c)
[<8007edfc>] (handle_irq_event_percpu+0x50/0x17c) from [<8007ef64>] (handle_irq_event+0x3c/0x5c)
[<8007ef64>] (handle_irq_event+0x3c/0x5c) from [<80081e98>] (handle_fasteoi_irq+0x98/0x168)
[<80081e98>] (handle_fasteoi_irq+0x98/0x168) from [<8007e598>] (generic_handle_irq+0x28/0x3c)
[<8007e598>] (generic_handle_irq+0x28/0x3c) from [<8000edf4>] (handle_IRQ+0x4c/0xb4)
[<8000edf4>] (handle_IRQ+0x4c/0xb4) from [<800085bc>] (gic_handle_irq+0x28/0x5c)
[<800085bc>] (gic_handle_irq+0x28/0x5c) from [<800125c0>] (__irq_svc+0x40/0x54)
Exception stack(0x8083bf68 to 0x8083bfb0)
bf60:                   81533b80 00000000 00096234 8001d760 8088e12c 00000000
bf80: 8083a000 8083a000 8084290c 805cb414 808428ac 8083a000 00000001 8083bfb0
bfa0: 8000f138 8000f13c 60000013 ffffffff
[<800125c0>] (__irq_svc+0x40/0x54) from [<8000f13c>] (arch_cpu_idle+0x30/0x3c)
[<8000f13c>] (arch_cpu_idle+0x30/0x3c) from [<8005eb94>] (cpu_startup_entry+0xf4/0x148)
[<8005eb94>] (cpu_startup_entry+0xf4/0x148) from [<807f1a2c>] (start_kernel+0x2c4/0x318)

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/chipidea/udc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 2bb7d18ef2d5..5c5e9124872f 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -713,12 +713,12 @@ __acquires(ci->lock)
 {
 	int retval;
 
+	spin_unlock(&ci->lock);
 	if (ci->gadget.speed != USB_SPEED_UNKNOWN) {
 		if (ci->driver)
 			ci->driver->disconnect(&ci->gadget);
 	}
 
-	spin_unlock(&ci->lock);
 	retval = _gadget_stop_activity(&ci->gadget);
 	if (retval)
 		goto done;
-- 
cgit 


From 65b2fb32b5ce53e103e026b6f95b784c5921cd2e Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Tue, 8 Oct 2013 10:30:17 +0800
Subject: usb: chipidea: udc: Fix calling spin_lock_irqsave at sleep context

Fixing the below dump:

root@freescale ~$ modprobe g_serial
g_serial gadget: Gadget Serial v2.4
g_serial gadget: g_serial ready
BUG: sleeping function called from invalid context at /home/b29397/work/projects/upstream/usb/usb/drivers/base/power/runtime.c:952
in_atomic(): 1, irqs_disabled(): 128, pid: 805, name: modprobe
2 locks held by modprobe/805:
 #0:  (udc_lock){+.+.+.}, at: [<7f000a74>] usb_gadget_probe_driver+0x44/0xb4 [udc_core]
 #1:  (&(&ci->lock)->rlock){......}, at: [<7f033488>] ci_udc_start+0x94/0x110 [ci_hdrc]
irq event stamp: 3878
hardirqs last  enabled at (3877): [<806b6720>] _raw_spin_unlock_irqrestore+0x40/0x6c
hardirqs last disabled at (3878): [<806b6474>] _raw_spin_lock_irqsave+0x2c/0xa8
softirqs last  enabled at (3872): [<8002ec0c>] __do_softirq+0x1c8/0x2e8
softirqs last disabled at (3857): [<8002f180>] irq_exit+0xbc/0x110
CPU: 0 PID: 805 Comm: modprobe Not tainted 3.11.0-next-20130910+ #85
[<80016b94>] (unwind_backtrace+0x0/0xf8) from [<80012e0c>] (show_stack+0x20/0x24)
[<80012e0c>] (show_stack+0x20/0x24) from [<806af554>] (dump_stack+0x9c/0xc4)
[<806af554>] (dump_stack+0x9c/0xc4) from [<8005940c>] (__might_sleep+0xf4/0x134)
[<8005940c>] (__might_sleep+0xf4/0x134) from [<803a04a4>] (__pm_runtime_resume+0x94/0xa0)
[<803a04a4>] (__pm_runtime_resume+0x94/0xa0) from [<7f0334a4>] (ci_udc_start+0xb0/0x110 [ci_hdrc])
[<7f0334a4>] (ci_udc_start+0xb0/0x110 [ci_hdrc]) from [<7f0009b4>] (udc_bind_to_driver+0x5c/0xd8 [udc_core])
[<7f0009b4>] (udc_bind_to_driver+0x5c/0xd8 [udc_core]) from [<7f000ab0>] (usb_gadget_probe_driver+0x80/0xb4 [udc_core])
[<7f000ab0>] (usb_gadget_probe_driver+0x80/0xb4 [udc_core]) from [<7f008618>] (usb_composite_probe+0xac/0xd8 [libcomposite])
[<7f008618>] (usb_composite_probe+0xac/0xd8 [libcomposite]) from [<7f04b168>] (init+0x8c/0xb4 [g_serial])
[<7f04b168>] (init+0x8c/0xb4 [g_serial]) from [<800088e8>] (do_one_initcall+0x108/0x16c)
[<800088e8>] (do_one_initcall+0x108/0x16c) from [<8008e518>] (load_module+0x1b00/0x20a4)
[<8008e518>] (load_module+0x1b00/0x20a4) from [<8008eba8>] (SyS_init_module+0xec/0x100)
[<8008eba8>] (SyS_init_module+0xec/0x100) from [<8000ec40>] (ret_fast_syscall+0x0/0x48)

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/chipidea/udc.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 5c5e9124872f..b34c81969cba 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -1636,23 +1636,22 @@ static int ci_udc_start(struct usb_gadget *gadget,
 	retval = usb_ep_enable(&ci->ep0in->ep);
 	if (retval)
 		return retval;
-	spin_lock_irqsave(&ci->lock, flags);
 
 	ci->driver = driver;
 	pm_runtime_get_sync(&ci->gadget.dev);
 	if (ci->vbus_active) {
+		spin_lock_irqsave(&ci->lock, flags);
 		hw_device_reset(ci, USBMODE_CM_DC);
 	} else {
 		pm_runtime_put_sync(&ci->gadget.dev);
-		goto done;
+		return retval;
 	}
 
 	retval = hw_device_state(ci, ci->ep0out->qh.dma);
+	spin_unlock_irqrestore(&ci->lock, flags);
 	if (retval)
 		pm_runtime_put_sync(&ci->gadget.dev);
 
- done:
-	spin_unlock_irqrestore(&ci->lock, flags);
 	return retval;
 }
 
-- 
cgit 


From 2b84f92b8141679be6b90396655fa4887589ec28 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 8 Oct 2013 16:01:37 -0700
Subject: usb: Remove unnecessary semicolons

These aren't necessary after switch and if blocks.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hub.c              | 2 +-
 drivers/usb/dwc3/ep0.c              | 6 +++---
 drivers/usb/gadget/composite.c      | 2 +-
 drivers/usb/gadget/dummy_hcd.c      | 6 +++---
 drivers/usb/gadget/goku_udc.c       | 2 +-
 drivers/usb/gadget/net2280.c        | 4 ++--
 drivers/usb/gadget/rndis.c          | 2 +-
 drivers/usb/gadget/tcm_usb_gadget.c | 4 ++--
 drivers/usb/host/ehci-dbg.c         | 2 +-
 drivers/usb/host/fotg210-hcd.c      | 2 +-
 drivers/usb/host/fusbh200-hcd.c     | 2 +-
 drivers/usb/host/isp1362-hcd.c      | 2 +-
 drivers/usb/host/ohci-dbg.c         | 2 +-
 drivers/usb/host/sl811-hcd.c        | 4 ++--
 drivers/usb/host/uhci-pci.c         | 2 +-
 drivers/usb/host/whci/hcd.c         | 4 ++--
 drivers/usb/musb/musb_core.c        | 2 +-
 drivers/usb/musb/musb_dsps.c        | 2 +-
 drivers/usb/musb/musb_gadget.c      | 2 +-
 drivers/usb/musb/musb_host.c        | 2 +-
 drivers/usb/phy/phy-ulpi-viewport.c | 2 +-
 drivers/usb/wusbcore/cbaf.c         | 4 ++--
 drivers/usb/wusbcore/devconnect.c   | 2 +-
 23 files changed, 32 insertions(+), 32 deletions(-)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 2159f820b159..2e804a5354c5 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -438,7 +438,7 @@ static void set_port_led(
 			case HUB_LED_OFF: s = "off"; break;
 			case HUB_LED_AUTO: s = "auto"; break;
 			default: s = "??"; break;
-			}; s; }),
+			} s; }),
 			status);
 }
 
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 7fa93f4bc507..95f7649c71a7 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -352,7 +352,7 @@ static int dwc3_ep0_handle_status(struct dwc3 *dwc,
 		break;
 	default:
 		return -EINVAL;
-	};
+	}
 
 	response_pkt = (__le16 *) dwc->setup_buf;
 	*response_pkt = cpu_to_le16(usb_status);
@@ -470,7 +470,7 @@ static int dwc3_ep0_handle_feature(struct dwc3 *dwc,
 
 	default:
 		return -EINVAL;
-	};
+	}
 
 	return 0;
 }
@@ -709,7 +709,7 @@ static int dwc3_ep0_std_request(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
 		dev_vdbg(dwc->dev, "Forwarding to gadget driver\n");
 		ret = dwc3_ep0_delegate_req(dwc, ctrl);
 		break;
-	};
+	}
 
 	return ret;
 }
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index d4f0f3305759..3e7ae707f691 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -354,7 +354,7 @@ static u8 encode_bMaxPower(enum usb_device_speed speed,
 		return DIV_ROUND_UP(val, 8);
 	default:
 		return DIV_ROUND_UP(val, 2);
-	};
+	}
 }
 
 static int config_buf(struct usb_configuration *config,
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index b8a2376971a4..8f4dae310923 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -544,7 +544,7 @@ static int dummy_enable(struct usb_ep *_ep,
 		 default:
 			 val = "ctrl";
 			 break;
-		 }; val; }),
+		 } val; }),
 		max, ep->stream_en ? "enabled" : "disabled");
 
 	/* at this point real hardware should be NAKing transfers
@@ -2271,7 +2271,7 @@ static inline ssize_t show_urb(char *buf, size_t size, struct urb *urb)
 		default:
 			s = "?";
 			break;
-		 }; s; }),
+		 } s; }),
 		ep, ep ? (usb_pipein(urb->pipe) ? "in" : "out") : "",
 		({ char *s; \
 		switch (usb_pipetype(urb->pipe)) { \
@@ -2287,7 +2287,7 @@ static inline ssize_t show_urb(char *buf, size_t size, struct urb *urb)
 		default: \
 			s = "-iso"; \
 			break; \
-		}; s; }),
+		} s; }),
 		urb->actual_length, urb->transfer_buffer_length);
 }
 
diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c
index 74bb8df82876..f82768015715 100644
--- a/drivers/usb/gadget/goku_udc.c
+++ b/drivers/usb/gadget/goku_udc.c
@@ -1165,7 +1165,7 @@ static int udc_proc_read(struct seq_file *m, void *v)
 				s = "invalid"; break;
 			default:
 				s = "?"; break;
-			}; s; }),
+			} s; }),
 			(tmp & EPxSTATUS_TOGGLE) ? "data1" : "data0",
 			(tmp & EPxSTATUS_SUSPEND) ? " suspend" : "",
 			(tmp & EPxSTATUS_FIFO_DISABLE) ? " disable" : "",
diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c
index 9fbc8fe5ecc0..fc852177c087 100644
--- a/drivers/usb/gadget/net2280.c
+++ b/drivers/usb/gadget/net2280.c
@@ -129,7 +129,7 @@ static char *type_string (u8 bmAttributes)
 	case USB_ENDPOINT_XFER_BULK:	return "bulk";
 	case USB_ENDPOINT_XFER_ISOC:	return "iso";
 	case USB_ENDPOINT_XFER_INT:	return "intr";
-	};
+	}
 	return "control";
 }
 #endif
@@ -1630,7 +1630,7 @@ static ssize_t queues_show(struct device *_dev, struct device_attribute *attr,
 					val = "intr"; break;
 				 default:
 					val = "iso"; break;
-				 }; val; }),
+				 } val; }),
 				usb_endpoint_maxp (d) & 0x1fff,
 				ep->dma ? "dma" : "pio", ep->fifo_size
 				);
diff --git a/drivers/usb/gadget/rndis.c b/drivers/usb/gadget/rndis.c
index 9575085ded81..a3ad732bc812 100644
--- a/drivers/usb/gadget/rndis.c
+++ b/drivers/usb/gadget/rndis.c
@@ -1068,7 +1068,7 @@ static int rndis_proc_show(struct seq_file *m, void *v)
 				s = "RNDIS_INITIALIZED"; break;
 			 case RNDIS_DATA_INITIALIZED:
 				s = "RNDIS_DATA_INITIALIZED"; break;
-			}; s; }),
+			} s; }),
 			 param->medium,
 			 (param->media_state) ? 0 : param->speed*100,
 			 (param->media_state) ? "disconnected" : "connected",
diff --git a/drivers/usb/gadget/tcm_usb_gadget.c b/drivers/usb/gadget/tcm_usb_gadget.c
index 0ff33396eef3..eccea1df702d 100644
--- a/drivers/usb/gadget/tcm_usb_gadget.c
+++ b/drivers/usb/gadget/tcm_usb_gadget.c
@@ -472,7 +472,7 @@ static int usbg_bot_setup(struct usb_function *f,
 		bot_enqueue_cmd_cbw(fu);
 		return 0;
 		break;
-	};
+	}
 	return -ENOTSUPP;
 }
 
@@ -617,7 +617,7 @@ static void uasp_status_data_cmpl(struct usb_ep *ep, struct usb_request *req)
 
 	default:
 		BUG();
-	};
+	}
 	return;
 
 cleanup:
diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c
index aa5b603f3933..da7d7fcccb8a 100644
--- a/drivers/usb/host/ehci-dbg.c
+++ b/drivers/usb/host/ehci-dbg.c
@@ -379,7 +379,7 @@ struct debug_buffer {
 		case QH_LOW_SPEED:  tmp = 'l'; break; \
 		case QH_HIGH_SPEED: tmp = 'h'; break; \
 		default: tmp = '?'; break; \
-		}; tmp; })
+		} tmp; })
 
 static inline char token_mark(struct ehci_hcd *ehci, __hc32 token)
 {
diff --git a/drivers/usb/host/fotg210-hcd.c b/drivers/usb/host/fotg210-hcd.c
index fce13bcc4a3e..55486bd23cf1 100644
--- a/drivers/usb/host/fotg210-hcd.c
+++ b/drivers/usb/host/fotg210-hcd.c
@@ -412,7 +412,7 @@ struct debug_buffer {
 			tmp = 'h'; break; \
 		default:		\
 			tmp = '?'; break; \
-		}; tmp; })
+		} tmp; })
 
 static inline char token_mark(struct fotg210_hcd *fotg210, __hc32 token)
 {
diff --git a/drivers/usb/host/fusbh200-hcd.c b/drivers/usb/host/fusbh200-hcd.c
index 299253c826c7..e1c6d850a7e1 100644
--- a/drivers/usb/host/fusbh200-hcd.c
+++ b/drivers/usb/host/fusbh200-hcd.c
@@ -402,7 +402,7 @@ struct debug_buffer {
 		case QH_LOW_SPEED:  tmp = 'l'; break; \
 		case QH_HIGH_SPEED: tmp = 'h'; break; \
 		default: tmp = '?'; break; \
-		}; tmp; })
+		} tmp; })
 
 static inline char token_mark(struct fusbh200_hcd *fusbh200, __hc32 token)
 {
diff --git a/drivers/usb/host/isp1362-hcd.c b/drivers/usb/host/isp1362-hcd.c
index 6f29abad6815..935a2dd367a8 100644
--- a/drivers/usb/host/isp1362-hcd.c
+++ b/drivers/usb/host/isp1362-hcd.c
@@ -2108,7 +2108,7 @@ static int isp1362_show(struct seq_file *s, void *unused)
 				   default:
 					   s = "?";
 					   break;
-				   };
+				   }
 				   s;}), ep->maxpacket) ;
 		list_for_each_entry(urb, &ep->hep->urb_list, urb_list) {
 			seq_printf(s, "  urb%p, %d/%d\n", urb,
diff --git a/drivers/usb/host/ohci-dbg.c b/drivers/usb/host/ohci-dbg.c
index 31b81f9eacdc..3fca52ec02ac 100644
--- a/drivers/usb/host/ohci-dbg.c
+++ b/drivers/usb/host/ohci-dbg.c
@@ -17,7 +17,7 @@
 	case PIPE_BULK:		temp = "bulk"; break; \
 	case PIPE_INTERRUPT:	temp = "intr"; break; \
 	default:		temp = "isoc"; break; \
-	}; temp;})
+	} temp;})
 #define pipestring(pipe) edstring(usb_pipetype(pipe))
 
 /* debug| print the main components of an URB
diff --git a/drivers/usb/host/sl811-hcd.c b/drivers/usb/host/sl811-hcd.c
index 5477bf5df218..79620c39217e 100644
--- a/drivers/usb/host/sl811-hcd.c
+++ b/drivers/usb/host/sl811-hcd.c
@@ -1413,7 +1413,7 @@ static int sl811h_show(struct seq_file *s, void *unused)
 			case SL11H_CTL1MASK_SE0: s = " se0/reset"; break;
 			case SL11H_CTL1MASK_K: s = " k/resume"; break;
 			default: s = "j"; break;
-			}; s; }),
+			} s; }),
 			(t & SL11H_CTL1MASK_LSPD) ? " lowspeed" : "",
 			(t & SL11H_CTL1MASK_SUSPEND) ? " suspend" : "");
 
@@ -1446,7 +1446,7 @@ static int sl811h_show(struct seq_file *s, void *unused)
 			case USB_PID_SETUP: s = "setup"; break;
 			case USB_PID_ACK: s = "status"; break;
 			default: s = "?"; break;
-			}; s;}),
+			} s;}),
 			ep->maxpacket,
 			ep->nak_count, ep->error_count);
 		list_for_each_entry (urb, &ep->hep->urb_list, urb_list) {
diff --git a/drivers/usb/host/uhci-pci.c b/drivers/usb/host/uhci-pci.c
index d89c78dc70c0..8de0da0e6dfc 100644
--- a/drivers/usb/host/uhci-pci.c
+++ b/drivers/usb/host/uhci-pci.c
@@ -178,7 +178,7 @@ static int uhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
 		dev_warn(uhci_dev(uhci), "Root hub isn't suspended!\n");
 		rc = -EBUSY;
 		goto done;
-	};
+	}
 
 	/* All PCI host controllers are required to disable IRQ generation
 	 * at the source, so we must turn off PIRQ.
diff --git a/drivers/usb/host/whci/hcd.c b/drivers/usb/host/whci/hcd.c
index ecc88db804e0..1b0888f8da9a 100644
--- a/drivers/usb/host/whci/hcd.c
+++ b/drivers/usb/host/whci/hcd.c
@@ -134,7 +134,7 @@ static int whc_urb_enqueue(struct usb_hcd *usb_hcd, struct urb *urb,
 	default:
 		ret = asl_urb_enqueue(whc, urb, mem_flags);
 		break;
-	};
+	}
 
 	return ret;
 }
@@ -160,7 +160,7 @@ static int whc_urb_dequeue(struct usb_hcd *usb_hcd, struct urb *urb, int status)
 	default:
 		ret = asl_urb_dequeue(whc, urb, status);
 		break;
-	};
+	}
 
 	return ret;
 }
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 18e877ffe7b7..093982a2eef0 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -617,7 +617,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
 				/* case 3 << MUSB_DEVCTL_VBUS_SHIFT: */
 				default:
 					s = "VALID"; break;
-				}; s; }),
+				} s; }),
 				VBUSERR_RETRY_COUNT - musb->vbuserr_retry,
 				musb->port1_status);
 
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index bd4138d80a48..1a5574c2d586 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -443,7 +443,7 @@ static int get_musb_port_mode(struct device *dev)
 	case USB_DR_MODE_OTG:
 	default:
 		return MUSB_PORT_MODE_DUAL_ROLE;
-	};
+	}
 }
 
 static int dsps_create_musb_pdev(struct dsps_glue *glue,
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index b19ed213ab85..b80669871b04 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1121,7 +1121,7 @@ static int musb_gadget_enable(struct usb_ep *ep,
 			case USB_ENDPOINT_XFER_BULK:	s = "bulk"; break;
 			case USB_ENDPOINT_XFER_INT:	s = "int"; break;
 			default:			s = "iso"; break;
-			}; s; }),
+			} s; }),
 			musb_ep->is_in ? "IN" : "OUT",
 			musb_ep->dma ? "dma, " : "",
 			musb_ep->packet_sz);
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index 9a2b8c85f19a..6582a20bec05 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -253,7 +253,7 @@ musb_start_urb(struct musb *musb, int is_in, struct musb_qh *qh)
 			case USB_ENDPOINT_XFER_BULK:	s = "-bulk"; break;
 			case USB_ENDPOINT_XFER_ISOC:	s = "-iso"; break;
 			default:			s = "-intr"; break;
-			}; s; }),
+			} s; }),
 			epnum, buf + offset, len);
 
 	/* Configure endpoint */
diff --git a/drivers/usb/phy/phy-ulpi-viewport.c b/drivers/usb/phy/phy-ulpi-viewport.c
index 7c22a5390fc3..18bb8264b5a0 100644
--- a/drivers/usb/phy/phy-ulpi-viewport.c
+++ b/drivers/usb/phy/phy-ulpi-viewport.c
@@ -36,7 +36,7 @@ static int ulpi_viewport_wait(void __iomem *view, u32 mask)
 			return 0;
 
 		udelay(1);
-	};
+	}
 
 	return -ETIMEDOUT;
 }
diff --git a/drivers/usb/wusbcore/cbaf.c b/drivers/usb/wusbcore/cbaf.c
index 7f78f300f8fb..010f99087506 100644
--- a/drivers/usb/wusbcore/cbaf.c
+++ b/drivers/usb/wusbcore/cbaf.c
@@ -208,9 +208,9 @@ static int cbaf_check(struct cbaf *cbaf)
 				ar_name = "ASSOCIATE";
 				ar_assoc = 1;
 				break;
-			};
+			}
 			break;
-		};
+		}
 
 		dev_dbg(dev, "Association request #%02u: 0x%04x/%04x "
 			 "(%zu bytes): %s\n",
diff --git a/drivers/usb/wusbcore/devconnect.c b/drivers/usb/wusbcore/devconnect.c
index 33a12788f9ca..e538b72c4e3a 100644
--- a/drivers/usb/wusbcore/devconnect.c
+++ b/drivers/usb/wusbcore/devconnect.c
@@ -973,7 +973,7 @@ int wusb_usb_ncb(struct notifier_block *nb, unsigned long val,
 	default:
 		WARN_ON(1);
 		result = NOTIFY_BAD;
-	};
+	}
 	return result;
 }
 
-- 
cgit 


From 1461c5be7becc6e65dba5cadb31fb5f4339609f5 Mon Sep 17 00:00:00 2001
From: Fengguang Wu <fengguang.wu@intel.com>
Date: Wed, 9 Oct 2013 09:26:21 +0800
Subject: kobject: show debug info on delayed kobject release

Useful for locating buggy drivers on kernel oops.

It may add dozens of new lines to boot dmesg. DEBUG_KOBJECT_RELEASE is
hopefully only enabled in debug kernels (like maybe the Fedora rawhide
one, or at developers), so being a bit more verbose is likely ok.

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 lib/kobject.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/kobject.c b/lib/kobject.c
index 2fdf7fa9e9bd..7a1c203083eb 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -628,7 +628,7 @@ static void kobject_release(struct kref *kref)
 {
 	struct kobject *kobj = container_of(kref, struct kobject, kref);
 #ifdef CONFIG_DEBUG_KOBJECT_RELEASE
-	pr_debug("kobject: '%s' (%p): %s, parent %p (delayed)\n",
+	pr_info("kobject: '%s' (%p): %s, parent %p (delayed)\n",
 		 kobject_name(kobj), kobj, __func__, kobj->parent);
 	INIT_DELAYED_WORK(&kobj->release, kobject_delayed_cleanup);
 	schedule_delayed_work(&kobj->release, HZ);
-- 
cgit 


From e4f0da055e4ff3e6ed2e2ad1f9c2334aeb845755 Mon Sep 17 00:00:00 2001
From: "Ivan T. Ivanov" <iivanov@mm-sol.com>
Date: Fri, 11 Oct 2013 14:46:09 +0300
Subject: ehci-msm: Remove global struct usb_phy variable

Use struct usb_hcd::phy to hold USB PHY instance.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-msm.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/host/ehci-msm.c b/drivers/usb/host/ehci-msm.c
index 0f717dc688b7..1bc93552151c 100644
--- a/drivers/usb/host/ehci-msm.c
+++ b/drivers/usb/host/ehci-msm.c
@@ -42,7 +42,6 @@
 
 static const char hcd_name[] = "ehci-msm";
 static struct hc_driver __read_mostly msm_hc_driver;
-static struct usb_phy *phy;
 
 static int ehci_msm_reset(struct usb_hcd *hcd)
 {
@@ -70,6 +69,7 @@ static int ehci_msm_probe(struct platform_device *pdev)
 {
 	struct usb_hcd *hcd;
 	struct resource *res;
+	struct usb_phy *phy;
 	int ret;
 
 	dev_dbg(&pdev->dev, "ehci_msm proble\n");
@@ -121,6 +121,7 @@ static int ehci_msm_probe(struct platform_device *pdev)
 		goto put_hcd;
 	}
 
+	hcd->phy = phy;
 	device_init_wakeup(&pdev->dev, 1);
 	/*
 	 * OTG device parent of HCD takes care of putting
@@ -147,7 +148,7 @@ static int ehci_msm_remove(struct platform_device *pdev)
 	pm_runtime_disable(&pdev->dev);
 	pm_runtime_set_suspended(&pdev->dev);
 
-	otg_set_host(phy->otg, NULL);
+	otg_set_host(hcd->phy->otg, NULL);
 
 	/* FIXME: need to call usb_remove_hcd() here? */
 
-- 
cgit 


From 0fc924bd4eecc45f05cc8437c28a8f33f9c45d3b Mon Sep 17 00:00:00 2001
From: "Ivan T. Ivanov" <iivanov@mm-sol.com>
Date: Fri, 11 Oct 2013 14:46:10 +0300
Subject: USB: ehci-msm: Add device tree support and binding information

Allows MSM EHCI controller to be specified via device tree.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/devicetree/bindings/usb/msm-hsusb.txt | 17 +++++++++++++++++
 drivers/usb/host/ehci-msm.c                         | 15 +++++++++++++--
 2 files changed, 30 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/usb/msm-hsusb.txt

diff --git a/Documentation/devicetree/bindings/usb/msm-hsusb.txt b/Documentation/devicetree/bindings/usb/msm-hsusb.txt
new file mode 100644
index 000000000000..5ea26c631e3a
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/msm-hsusb.txt
@@ -0,0 +1,17 @@
+MSM SoC HSUSB controllers
+
+EHCI
+
+Required properties:
+- compatible:	Should contain "qcom,ehci-host"
+- regs:			offset and length of the register set in the memory map
+- usb-phy:		phandle for the PHY device
+
+Example EHCI controller device node:
+
+	ehci: ehci@f9a55000 {
+		compatible = "qcom,ehci-host";
+		reg = <0xf9a55000 0x400>;
+		usb-phy = <&usb_otg>;
+	};
+
diff --git a/drivers/usb/host/ehci-msm.c b/drivers/usb/host/ehci-msm.c
index 1bc93552151c..f341651d6f6c 100644
--- a/drivers/usb/host/ehci-msm.c
+++ b/drivers/usb/host/ehci-msm.c
@@ -108,10 +108,14 @@ static int ehci_msm_probe(struct platform_device *pdev)
 	 * powering up VBUS, mapping of registers address space and power
 	 * management.
 	 */
-	phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
+	if (pdev->dev.of_node)
+		phy = devm_usb_get_phy_by_phandle(&pdev->dev, "usb-phy", 0);
+	else
+		phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
+
 	if (IS_ERR(phy)) {
 		dev_err(&pdev->dev, "unable to find transceiver\n");
-		ret = -ENODEV;
+		ret = -EPROBE_DEFER;
 		goto put_hcd;
 	}
 
@@ -187,12 +191,19 @@ static const struct dev_pm_ops ehci_msm_dev_pm_ops = {
 	.resume          = ehci_msm_pm_resume,
 };
 
+static struct of_device_id msm_ehci_dt_match[] = {
+	{ .compatible = "qcom,ehci-host", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, msm_ehci_dt_match);
+
 static struct platform_driver ehci_msm_driver = {
 	.probe	= ehci_msm_probe,
 	.remove	= ehci_msm_remove,
 	.driver = {
 		   .name = "msm_hsusb_host",
 		   .pm = &ehci_msm_dev_pm_ops,
+		   .of_match_table = msm_ehci_dt_match,
 	},
 };
 
-- 
cgit 


From a72e2e5cc2e74ed793a0651e072a8529cfb93631 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 10 Oct 2013 10:02:38 +0900
Subject: USB: ohci-exynos: Add missing usb_put_hcd() to prevent memory leak

When devm_usb_get_phy() fails, usb_put_hcd() should be called
to prevent memory leak.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ohci-exynos.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c
index f5f372e02a99..122e52e88a40 100644
--- a/drivers/usb/host/ohci-exynos.c
+++ b/drivers/usb/host/ohci-exynos.c
@@ -100,6 +100,7 @@ static int exynos_ohci_probe(struct platform_device *pdev)
 	if (IS_ERR(phy)) {
 		/* Fallback to pdata */
 		if (!pdata) {
+			usb_put_hcd(hcd);
 			dev_warn(&pdev->dev, "no platform data or transceiver defined\n");
 			return -EPROBE_DEFER;
 		} else {
-- 
cgit 


From 9ef73dbdd0fc292d183e93cd1d4b21d1a66040d7 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Wed, 9 Oct 2013 17:01:40 +0200
Subject: usb-anchor: Ensure poisened gets initialized to 0

And do so in a way which ensures that any fields added in the future will
also get properly zero-ed.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/usb.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/usb.h b/include/linux/usb.h
index f726c39097e0..fa8bedf06c6e 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -1214,6 +1214,7 @@ struct usb_anchor {
 
 static inline void init_usb_anchor(struct usb_anchor *anchor)
 {
+	memset(anchor, 0, sizeof(*anchor));
 	INIT_LIST_HEAD(&anchor->urb_list);
 	init_waitqueue_head(&anchor->wait);
 	spin_lock_init(&anchor->lock);
-- 
cgit 


From 6ec4147e7bdbde168f5bce30de5984aa4f971b22 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Wed, 9 Oct 2013 17:01:41 +0200
Subject: usb-anchor: Delay usb_wait_anchor_empty_timeout wake up till
 completion is done

usb_wait_anchor_empty_timeout() should wait till the completion handler
has run. Both the zd1211rw driver and the uas driver (in its task mgmt) depend
on the completion handler having completed when usb_wait_anchor_empty_timeout()
returns, as they read state set by the completion handler after an
usb_wait_anchor_empty_timeout() call.

But __usb_hcd_giveback_urb() calls usb_unanchor_urb before calling the
completion handler. This is necessary as the completion handler may
re-submit and re-anchor the urb. But this introduces a race where the state
these drivers want to read has not been set yet by the completion handler
(this race is easily triggered with the uas task mgmt code).

I've considered adding an anchor_count to struct urb, which would be
incremented on anchor and decremented on unanchor, and then only actually
do the anchor / unanchor on 0 -> 1 and 1 -> 0 transtions, combined with
moving the unanchor call in hcd_giveback_urb to after calling the completion
handler. But this will only work if urb's are only re-anchored to the same
anchor as they were anchored to before the completion handler ran.

And at least one driver re-anchors to another anchor from the completion
handler (rtlwifi).

So I have come up with this patch instead, which adds the ability to
suspend wakeups of usb_wait_anchor_empty_timeout() waiters to the usb_anchor
functionality, and uses this in __usb_hcd_giveback_urb() to delay wake-ups
until the completion handler has run.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hcd.c |  3 +++
 drivers/usb/core/urb.c | 44 ++++++++++++++++++++++++++++++++++++++++++--
 include/linux/usb.h    |  3 +++
 3 files changed, 48 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 460bb59cb655..149cdf129293 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1652,6 +1652,7 @@ int usb_hcd_unlink_urb (struct urb *urb, int status)
 static void __usb_hcd_giveback_urb(struct urb *urb)
 {
 	struct usb_hcd *hcd = bus_to_hcd(urb->dev->bus);
+	struct usb_anchor *anchor = urb->anchor;
 	int status = urb->unlinked;
 	unsigned long flags;
 
@@ -1663,6 +1664,7 @@ static void __usb_hcd_giveback_urb(struct urb *urb)
 
 	unmap_urb_for_dma(hcd, urb);
 	usbmon_urb_complete(&hcd->self, urb, status);
+	usb_anchor_suspend_wakeups(anchor);
 	usb_unanchor_urb(urb);
 
 	/* pass ownership to the completion handler */
@@ -1682,6 +1684,7 @@ static void __usb_hcd_giveback_urb(struct urb *urb)
 	urb->complete(urb);
 	local_irq_restore(flags);
 
+	usb_anchor_resume_wakeups(anchor);
 	atomic_dec(&urb->use_count);
 	if (unlikely(atomic_read(&urb->reject)))
 		wake_up(&usb_kill_urb_queue);
diff --git a/drivers/usb/core/urb.c b/drivers/usb/core/urb.c
index c12bc790a6a7..e62208356c89 100644
--- a/drivers/usb/core/urb.c
+++ b/drivers/usb/core/urb.c
@@ -138,13 +138,19 @@ void usb_anchor_urb(struct urb *urb, struct usb_anchor *anchor)
 }
 EXPORT_SYMBOL_GPL(usb_anchor_urb);
 
+static int usb_anchor_check_wakeup(struct usb_anchor *anchor)
+{
+	return atomic_read(&anchor->suspend_wakeups) == 0 &&
+		list_empty(&anchor->urb_list);
+}
+
 /* Callers must hold anchor->lock */
 static void __usb_unanchor_urb(struct urb *urb, struct usb_anchor *anchor)
 {
 	urb->anchor = NULL;
 	list_del(&urb->anchor_list);
 	usb_put_urb(urb);
-	if (list_empty(&anchor->urb_list))
+	if (usb_anchor_check_wakeup(anchor))
 		wake_up(&anchor->wait);
 }
 
@@ -845,6 +851,39 @@ void usb_unlink_anchored_urbs(struct usb_anchor *anchor)
 }
 EXPORT_SYMBOL_GPL(usb_unlink_anchored_urbs);
 
+/**
+ * usb_anchor_suspend_wakeups
+ * @anchor: the anchor you want to suspend wakeups on
+ *
+ * Call this to stop the last urb being unanchored from waking up any
+ * usb_wait_anchor_empty_timeout waiters. This is used in the hcd urb give-
+ * back path to delay waking up until after the completion handler has run.
+ */
+void usb_anchor_suspend_wakeups(struct usb_anchor *anchor)
+{
+	if (anchor)
+		atomic_inc(&anchor->suspend_wakeups);
+}
+EXPORT_SYMBOL_GPL(usb_anchor_suspend_wakeups);
+
+/**
+ * usb_anchor_resume_wakeups
+ * @anchor: the anchor you want to resume wakeups on
+ *
+ * Allow usb_wait_anchor_empty_timeout waiters to be woken up again, and
+ * wake up any current waiters if the anchor is empty.
+ */
+void usb_anchor_resume_wakeups(struct usb_anchor *anchor)
+{
+	if (!anchor)
+		return;
+
+	atomic_dec(&anchor->suspend_wakeups);
+	if (usb_anchor_check_wakeup(anchor))
+		wake_up(&anchor->wait);
+}
+EXPORT_SYMBOL_GPL(usb_anchor_resume_wakeups);
+
 /**
  * usb_wait_anchor_empty_timeout - wait for an anchor to be unused
  * @anchor: the anchor you want to become unused
@@ -858,7 +897,8 @@ EXPORT_SYMBOL_GPL(usb_unlink_anchored_urbs);
 int usb_wait_anchor_empty_timeout(struct usb_anchor *anchor,
 				  unsigned int timeout)
 {
-	return wait_event_timeout(anchor->wait, list_empty(&anchor->urb_list),
+	return wait_event_timeout(anchor->wait,
+				  usb_anchor_check_wakeup(anchor),
 				  msecs_to_jiffies(timeout));
 }
 EXPORT_SYMBOL_GPL(usb_wait_anchor_empty_timeout);
diff --git a/include/linux/usb.h b/include/linux/usb.h
index fa8bedf06c6e..055ba74bee80 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -1209,6 +1209,7 @@ struct usb_anchor {
 	struct list_head urb_list;
 	wait_queue_head_t wait;
 	spinlock_t lock;
+	atomic_t suspend_wakeups;
 	unsigned int poisoned:1;
 };
 
@@ -1575,6 +1576,8 @@ extern void usb_kill_anchored_urbs(struct usb_anchor *anchor);
 extern void usb_poison_anchored_urbs(struct usb_anchor *anchor);
 extern void usb_unpoison_anchored_urbs(struct usb_anchor *anchor);
 extern void usb_unlink_anchored_urbs(struct usb_anchor *anchor);
+extern void usb_anchor_suspend_wakeups(struct usb_anchor *anchor);
+extern void usb_anchor_resume_wakeups(struct usb_anchor *anchor);
 extern void usb_anchor_urb(struct urb *urb, struct usb_anchor *anchor);
 extern void usb_unanchor_urb(struct urb *urb);
 extern int usb_wait_anchor_empty_timeout(struct usb_anchor *anchor,
-- 
cgit 


From 63fb3a280061c5a1d9190015e5a074213f9d23c0 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 11 Oct 2013 11:28:02 -0400
Subject: USB: NS_TO_US should round up

Host controller drivers use the NS_TO_US macro to convert transaction
times, which are computed in nanoseconds, to microseconds for
scheduling.  Periodic scheduling requires worst-case estimates, but
the macro does its conversion using round-to-nearest.  This patch
changes it to use round-up, giving a correct worst-case value.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/usb/hcd.h | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index fc64b6825f5e..dbe3cd19ffd8 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -564,9 +564,8 @@ extern void usb_ep0_reinit(struct usb_device *);
 		 * of (7/6 * 8 * bytecount) = 9.33 * bytecount */
 		/* bytecount = data payload byte count */
 
-#define NS_TO_US(ns)	((ns + 500L) / 1000L)
-			/* convert & round nanoseconds to microseconds */
-
+#define NS_TO_US(ns)	DIV_ROUND_UP(ns, 1000L)
+			/* convert nanoseconds to microseconds, rounding up */
 
 /*
  * Full/low speed bandwidth allocation constants/support.
-- 
cgit 


From e24371a6be9c5c00b56607bd425cc409cba75d88 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 11 Oct 2013 11:28:12 -0400
Subject: USB: EHCI: check the right uframes for CSPLIT

The check_intr_schedule() routine in ehci-hcd looks at the wrong
microframes when checking to see if a full-speed or low-speed
interrupt endpoint will fit in the periodic schedule.  If the
Start-Split transaction is scheduled for microframe N then the
Complete-Split transactions get scheduled for microframes N+2, N+3, and
N+4.  However the code considers N+1, N+2, and N+3 instead.

This patch fixes the limits on the "for" loop and also improves the
use of whitespace.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-sched.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index dcbaad94d607..34b5945fafa5 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -761,7 +761,7 @@ static int check_intr_schedule (
 		unsigned i;
 
 		/* TODO : this may need FSTN for SSPLIT in uframe 5. */
-		for (i=uframe+1; i<8 && i<uframe+4; i++)
+		for (i = uframe+2; i < 8 && i <= uframe+4; i++)
 			if (!check_period (ehci, frame, i,
 						qh->period, qh->c_usecs))
 				goto done;
-- 
cgit 


From 2b90f01b219e390e1f1bf68dd7a2333efb3e3eff Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 11 Oct 2013 11:28:21 -0400
Subject: USB: EHCI: compute full-speed bandwidth usage correctly

Although the bandwidth statistics maintained by ehci-hcd show up only
in the /sys/kernel/debug/usb/devices file, they ought to be calculated
correctly.  The calculation for full-speed isochronous endpoints is
wrong; it mistakenly yields bytes per microframe instead of bytes per
frame.  The "interval" value, which is in frames, should not be
converted to microframes.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-sched.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 34b5945fafa5..4b0903c6c616 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -1055,7 +1055,7 @@ iso_stream_init (
 		} else
 			stream->raw_mask = smask_out [hs_transfers - 1];
 		bandwidth = stream->usecs + stream->c_usecs;
-		bandwidth /= interval << 3;
+		bandwidth /= interval;
 
 		/* stream->splits gets created from raw_mask later */
 		stream->address = cpu_to_hc32(ehci, addr);
-- 
cgit 


From 8c05dc598e5bc0eb33791de23157cf1e47cb580e Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 11 Oct 2013 11:28:31 -0400
Subject: USB: EHCI: No SSPLIT allowed in uframe 7

The scheduling code in ehci-hcd contains an error.  For full-speed
isochronous-OUT transfers, the EHCI spec forbids scheduling
Start-Split transactions in H-microframe 7, but the driver allows it
anyway.  This patch adds a check to prevent it.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-sched.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 4b0903c6c616..1fc2befc4fdc 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -1286,6 +1286,10 @@ sitd_slot_ok (
 
 	mask = stream->raw_mask << (uframe & 7);
 
+	/* for OUT, don't wrap SSPLIT into H-microframe 7 */
+	if (((stream->raw_mask & 0xff) << (uframe & 7)) >= (1 << 7))
+		return 0;
+
 	/* for IN, don't wrap CSPLIT into the next frame */
 	if (mask & ~0xffff)
 		return 0;
-- 
cgit 


From 27c4a31d6739095d613c6e72fb44867bc28c699f Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 11 Oct 2013 11:28:44 -0400
Subject: USB: EHCI: change toggle only upon successful reset

ehci-hcd uses a value of 0 in an endpoint's toggle flag to indicate
that the endpoint has been reset (and therefore the Data Toggle bit
needs to be cleared in the endpoint's QH overlay region).

The toggle flag should be set to 0 only when ehci_endpoint_reset()
succeeds.  This patch moves the usb_settoggle() call into the
appropriate branch of the "if" statement.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-hcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 3e3ca839e6ce..652018f93632 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1022,7 +1022,6 @@ ehci_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep)
 	 * the toggle bit in the QH.
 	 */
 	if (qh) {
-		usb_settoggle(qh->dev, epnum, is_out, 0);
 		if (!list_empty(&qh->qtd_list)) {
 			WARN_ONCE(1, "clear_halt for a busy endpoint\n");
 		} else {
@@ -1030,6 +1029,7 @@ ehci_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep)
 			 * while the QH is active.  Unlink it now;
 			 * re-linking will call qh_refresh().
 			 */
+			usb_settoggle(qh->dev, epnum, is_out, 0);
 			qh->exception = 1;
 			if (eptype == USB_ENDPOINT_XFER_BULK)
 				start_unlink_async(ehci, qh);
-- 
cgit 


From 91a99b5e78849db90dc2f5e8dfa034af43bdb760 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 11 Oct 2013 11:28:52 -0400
Subject: USB: EHCI: use consistent NO_FRAME value

ehci-hcd is inconsistent in the sentinel values it uses to indicate
that no frame number has been assigned for a periodic transfer.  Some
places it uses NO_FRAME (defined as 65535), other places it uses -1,
and elsewhere it uses 9999.

This patch defines a value for NO_FRAME which can fit in a 16-bit
signed integer, and changes the code to use it everywhere.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-sched.c | 8 ++++----
 drivers/usb/host/ehci.h       | 5 +++--
 2 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 1fc2befc4fdc..37e97a70894a 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -813,7 +813,7 @@ static int qh_schedule(struct ehci_hcd *ehci, struct ehci_qh *qh)
 	frame = qh->start;
 
 	/* reuse the previous schedule slots, if we can */
-	if (frame < qh->period) {
+	if (frame != NO_FRAME) {
 		uframe = ffs(hc32_to_cpup(ehci, &hw->hw_info2) & QH_SMASK);
 		status = check_intr_schedule (ehci, frame, --uframe,
 				qh, &c_mask);
@@ -969,7 +969,7 @@ iso_stream_alloc (gfp_t mem_flags)
 	if (likely (stream != NULL)) {
 		INIT_LIST_HEAD(&stream->td_list);
 		INIT_LIST_HEAD(&stream->free_list);
-		stream->next_uframe = -1;
+		stream->next_uframe = NO_FRAME;
 	}
 	return stream;
 }
@@ -1236,7 +1236,7 @@ itd_urb_transaction (
 
 		memset (itd, 0, sizeof *itd);
 		itd->itd_dma = itd_dma;
-		itd->frame = 9999;		/* an invalid value */
+		itd->frame = NO_FRAME;
 		list_add (&itd->itd_list, &sched->td_list);
 	}
 	spin_unlock_irqrestore (&ehci->lock, flags);
@@ -1967,7 +1967,7 @@ sitd_urb_transaction (
 
 		memset (sitd, 0, sizeof *sitd);
 		sitd->sitd_dma = sitd_dma;
-		sitd->frame = 9999;		/* an invalid value */
+		sitd->frame = NO_FRAME;
 		list_add (&sitd->sitd_list, &iso_sched->td_list);
 	}
 
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index 2d401927e143..b93eb59bb529 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -54,6 +54,8 @@ struct ehci_stats {
 	unsigned long		unlink;
 };
 
+#define NO_FRAME	29999			/* frame not assigned yet */
+
 /* ehci_hcd->lock guards shared data against other CPUs:
  *   ehci_hcd:	async, unlink, periodic (and shadow), ...
  *   usb_host_endpoint: hcpriv
@@ -405,7 +407,6 @@ struct ehci_qh {
 	u16			tt_usecs;	/* tt downstream bandwidth */
 	unsigned short		period;		/* polling interval */
 	unsigned short		start;		/* where polling starts */
-#define NO_FRAME ((unsigned short)~0)			/* pick new start */
 
 	struct usb_device	*dev;		/* access to TT */
 	unsigned		is_out:1;	/* bulk or intr OUT */
@@ -454,7 +455,7 @@ struct ehci_iso_stream {
 	struct usb_host_endpoint *ep;
 
 	/* output of (re)scheduling */
-	int			next_uframe;
+	unsigned		next_uframe;
 	__hc32			splits;
 
 	/* the rest is derived from the endpoint descriptor,
-- 
cgit 


From ffa0248e643175cea3887c7058916af53104d8e5 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 11 Oct 2013 11:29:03 -0400
Subject: USB: EHCI: create a "periodic schedule info" struct

This patch begins the process of unifying the scheduling parameters
that ehci-hcd uses for interrupt and isochronous transfers.  It
creates an ehci_per_sched structure, which will be stored in both
ehci_qh and ehci_iso_stream structures, and will contain the common
scheduling information needed for both.

Initially we merely create the new structure and move some existing
fields into it.  Later patches will add more fields and utilize these
structures in improved scheduling algorithms.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-dbg.c   |   7 +-
 drivers/usb/host/ehci-hcd.c   |   2 +-
 drivers/usb/host/ehci-q.c     |  40 +++++-----
 drivers/usb/host/ehci-sched.c | 167 +++++++++++++++++++++---------------------
 drivers/usb/host/ehci.h       |  29 ++++----
 5 files changed, 124 insertions(+), 121 deletions(-)

diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c
index da7d7fcccb8a..09e5bc8e2b98 100644
--- a/drivers/usb/host/ehci-dbg.c
+++ b/drivers/usb/host/ehci-dbg.c
@@ -571,7 +571,7 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
 			case Q_TYPE_QH:
 				hw = p.qh->hw;
 				temp = scnprintf (next, size, " qh%d-%04x/%p",
-						p.qh->period,
+						p.qh->ps.period,
 						hc32_to_cpup(ehci,
 							&hw->hw_info2)
 							/* uframe masks */
@@ -618,7 +618,8 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
 						speed_char (scratch),
 						scratch & 0x007f,
 						(scratch >> 8) & 0x000f, type,
-						p.qh->usecs, p.qh->c_usecs,
+						p.qh->ps.usecs,
+						p.qh->ps.c_usecs,
 						temp,
 						0x7ff & (scratch >> 16));
 
@@ -645,7 +646,7 @@ static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
 			case Q_TYPE_SITD:
 				temp = scnprintf (next, size,
 					" sitd%d-%04x/%p",
-					p.sitd->stream->interval,
+					p.sitd->stream->ps.period,
 					hc32_to_cpup(ehci, &p.sitd->hw_uframe)
 						& 0x0000ffff,
 					p.sitd);
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 652018f93632..b2e4e4b3cfae 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1029,7 +1029,7 @@ ehci_endpoint_reset(struct usb_hcd *hcd, struct usb_host_endpoint *ep)
 			 * while the QH is active.  Unlink it now;
 			 * re-linking will call qh_refresh().
 			 */
-			usb_settoggle(qh->dev, epnum, is_out, 0);
+			usb_settoggle(qh->ps.udev, epnum, is_out, 0);
 			qh->exception = 1;
 			if (eptype == USB_ENDPOINT_XFER_BULK)
 				start_unlink_async(ehci, qh);
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index e321804c3475..9bfaa21707bd 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -105,9 +105,9 @@ qh_update (struct ehci_hcd *ehci, struct ehci_qh *qh, struct ehci_qtd *qtd)
 
 		is_out = qh->is_out;
 		epnum = (hc32_to_cpup(ehci, &hw->hw_info1) >> 8) & 0x0f;
-		if (unlikely (!usb_gettoggle (qh->dev, epnum, is_out))) {
+		if (unlikely(!usb_gettoggle(qh->ps.udev, epnum, is_out))) {
 			hw->hw_token &= ~cpu_to_hc32(ehci, QTD_TOGGLE);
-			usb_settoggle (qh->dev, epnum, is_out, 1);
+			usb_settoggle(qh->ps.udev, epnum, is_out, 1);
 		}
 	}
 
@@ -797,26 +797,25 @@ qh_make (
 	 * For control/bulk requests, the HC or TT handles these.
 	 */
 	if (type == PIPE_INTERRUPT) {
-		qh->usecs = NS_TO_US(usb_calc_bus_time(USB_SPEED_HIGH,
+		qh->ps.usecs = NS_TO_US(usb_calc_bus_time(USB_SPEED_HIGH,
 				is_input, 0,
 				hb_mult(maxp) * max_packet(maxp)));
-		qh->start = NO_FRAME;
+		qh->ps.phase = NO_FRAME;
 
 		if (urb->dev->speed == USB_SPEED_HIGH) {
-			qh->c_usecs = 0;
+			qh->ps.c_usecs = 0;
 			qh->gap_uf = 0;
 
-			qh->period = urb->interval >> 3;
-			if (qh->period == 0 && urb->interval != 1) {
+			if (urb->interval > 1 && urb->interval < 8) {
 				/* NOTE interval 2 or 4 uframes could work.
 				 * But interval 1 scheduling is simpler, and
 				 * includes high bandwidth.
 				 */
 				urb->interval = 1;
-			} else if (qh->period > ehci->periodic_size) {
-				qh->period = ehci->periodic_size;
-				urb->interval = qh->period << 3;
+			} else if (urb->interval > ehci->periodic_size << 3) {
+				urb->interval = ehci->periodic_size << 3;
 			}
+			qh->ps.period = urb->interval >> 3;
 		} else {
 			int		think_time;
 
@@ -826,27 +825,26 @@ qh_make (
 
 			/* FIXME this just approximates SPLIT/CSPLIT times */
 			if (is_input) {		// SPLIT, gap, CSPLIT+DATA
-				qh->c_usecs = qh->usecs + HS_USECS (0);
-				qh->usecs = HS_USECS (1);
+				qh->ps.c_usecs = qh->ps.usecs + HS_USECS(0);
+				qh->ps.usecs = HS_USECS(1);
 			} else {		// SPLIT+DATA, gap, CSPLIT
-				qh->usecs += HS_USECS (1);
-				qh->c_usecs = HS_USECS (0);
+				qh->ps.usecs += HS_USECS(1);
+				qh->ps.c_usecs = HS_USECS(0);
 			}
 
 			think_time = tt ? tt->think_time : 0;
-			qh->tt_usecs = NS_TO_US (think_time +
+			qh->ps.tt_usecs = NS_TO_US(think_time +
 					usb_calc_bus_time (urb->dev->speed,
 					is_input, 0, max_packet (maxp)));
-			qh->period = urb->interval;
-			if (qh->period > ehci->periodic_size) {
-				qh->period = ehci->periodic_size;
-				urb->interval = qh->period;
-			}
+			if (urb->interval > ehci->periodic_size)
+				urb->interval = ehci->periodic_size;
+			qh->ps.period = urb->interval;
 		}
 	}
 
 	/* support for tt scheduling, and access to toggles */
-	qh->dev = urb->dev;
+	qh->ps.udev = urb->dev;
+	qh->ps.ep = urb->ep;
 
 	/* using TT? */
 	switch (urb->dev->speed) {
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 37e97a70894a..1fafcda0ae81 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -121,11 +121,11 @@ periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe)
 			hw = q->qh->hw;
 			/* is it in the S-mask? */
 			if (hw->hw_info2 & cpu_to_hc32(ehci, 1 << uframe))
-				usecs += q->qh->usecs;
+				usecs += q->qh->ps.usecs;
 			/* ... or C-mask? */
 			if (hw->hw_info2 & cpu_to_hc32(ehci,
 					1 << (8 + uframe)))
-				usecs += q->qh->c_usecs;
+				usecs += q->qh->ps.c_usecs;
 			hw_p = &hw->hw_next;
 			q = &q->qh->qh_next;
 			break;
@@ -142,7 +142,7 @@ periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe)
 			break;
 		case Q_TYPE_ITD:
 			if (q->itd->hw_transaction[uframe])
-				usecs += q->itd->stream->usecs;
+				usecs += q->itd->stream->ps.usecs;
 			hw_p = &q->itd->hw_next;
 			q = &q->itd->itd_next;
 			break;
@@ -152,7 +152,7 @@ periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe)
 					1 << uframe)) {
 				if (q->sitd->hw_fullspeed_ep &
 						cpu_to_hc32(ehci, 1<<31))
-					usecs += q->sitd->stream->usecs;
+					usecs += q->sitd->stream->ps.usecs;
 				else	/* worst case for OUT start-split */
 					usecs += HS_USECS_ISO (188);
 			}
@@ -161,7 +161,7 @@ periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe)
 			if (q->sitd->hw_uframe &
 					cpu_to_hc32(ehci, 1 << (8 + uframe))) {
 				/* worst case for IN complete-split */
-				usecs += q->sitd->stream->c_usecs;
+				usecs += q->sitd->stream->ps.c_usecs;
 			}
 
 			hw_p = &q->sitd->hw_next;
@@ -258,9 +258,9 @@ periodic_tt_usecs (
 			q = &q->itd->itd_next;
 			continue;
 		case Q_TYPE_QH:
-			if (same_tt(dev, q->qh->dev)) {
+			if (same_tt(dev, q->qh->ps.udev)) {
 				uf = tt_start_uframe(ehci, q->qh->hw->hw_info2);
-				tt_usecs[uf] += q->qh->tt_usecs;
+				tt_usecs[uf] += q->qh->ps.tt_usecs;
 			}
 			hw_p = &q->qh->hw->hw_next;
 			q = &q->qh->qh_next;
@@ -268,7 +268,7 @@ periodic_tt_usecs (
 		case Q_TYPE_SITD:
 			if (same_tt(dev, q->sitd->urb->dev)) {
 				uf = tt_start_uframe(ehci, q->sitd->hw_uframe);
-				tt_usecs[uf] += q->sitd->stream->tt_usecs;
+				tt_usecs[uf] += q->sitd->stream->ps.tt_usecs;
 			}
 			hw_p = &q->sitd->hw_next;
 			q = &q->sitd->sitd_next;
@@ -391,7 +391,7 @@ static int tt_no_collision (
 				continue;
 			case Q_TYPE_QH:
 				hw = here.qh->hw;
-				if (same_tt (dev, here.qh->dev)) {
+				if (same_tt(dev, here.qh->ps.udev)) {
 					u32		mask;
 
 					mask = hc32_to_cpu(ehci,
@@ -471,19 +471,19 @@ static void disable_periodic(struct ehci_hcd *ehci)
 static void qh_link_periodic(struct ehci_hcd *ehci, struct ehci_qh *qh)
 {
 	unsigned	i;
-	unsigned	period = qh->period;
+	unsigned	period = qh->ps.period;
 
-	dev_dbg (&qh->dev->dev,
+	dev_dbg(&qh->ps.udev->dev,
 		"link qh%d-%04x/%p start %d [%d/%d us]\n",
 		period, hc32_to_cpup(ehci, &qh->hw->hw_info2)
 			& (QH_CMASK | QH_SMASK),
-		qh, qh->start, qh->usecs, qh->c_usecs);
+		qh, qh->ps.phase, qh->ps.usecs, qh->ps.c_usecs);
 
 	/* high bandwidth, or otherwise every microframe */
 	if (period == 0)
 		period = 1;
 
-	for (i = qh->start; i < ehci->periodic_size; i += period) {
+	for (i = qh->ps.phase; i < ehci->periodic_size; i += period) {
 		union ehci_shadow	*prev = &ehci->pshadow[i];
 		__hc32			*hw_p = &ehci->periodic[i];
 		union ehci_shadow	here = *prev;
@@ -503,7 +503,7 @@ static void qh_link_periodic(struct ehci_hcd *ehci, struct ehci_qh *qh)
 		 * enables sharing interior tree nodes
 		 */
 		while (here.ptr && qh != here.qh) {
-			if (qh->period > here.qh->period)
+			if (qh->ps.period > here.qh->ps.period)
 				break;
 			prev = &here.qh->qh_next;
 			hw_p = &here.qh->hw->hw_next;
@@ -523,10 +523,10 @@ static void qh_link_periodic(struct ehci_hcd *ehci, struct ehci_qh *qh)
 	qh->xacterrs = 0;
 	qh->exception = 0;
 
-	/* update per-qh bandwidth for usbfs */
-	ehci_to_hcd(ehci)->self.bandwidth_allocated += qh->period
-		? ((qh->usecs + qh->c_usecs) / qh->period)
-		: (qh->usecs * 8);
+	/* update per-qh bandwidth for debugfs */
+	ehci_to_hcd(ehci)->self.bandwidth_allocated += qh->ps.period
+		? ((qh->ps.usecs + qh->ps.c_usecs) / qh->ps.period)
+		: (qh->ps.usecs * 8);
 
 	list_add(&qh->intr_node, &ehci->intr_qh_list);
 
@@ -556,22 +556,21 @@ static void qh_unlink_periodic(struct ehci_hcd *ehci, struct ehci_qh *qh)
 	 */
 
 	/* high bandwidth, or otherwise part of every microframe */
-	if ((period = qh->period) == 0)
-		period = 1;
+	period = qh->ps.period ? : 1;
 
-	for (i = qh->start; i < ehci->periodic_size; i += period)
+	for (i = qh->ps.phase; i < ehci->periodic_size; i += period)
 		periodic_unlink (ehci, i, qh);
 
-	/* update per-qh bandwidth for usbfs */
-	ehci_to_hcd(ehci)->self.bandwidth_allocated -= qh->period
-		? ((qh->usecs + qh->c_usecs) / qh->period)
-		: (qh->usecs * 8);
+	/* update per-qh bandwidth for debugfs */
+	ehci_to_hcd(ehci)->self.bandwidth_allocated -= qh->ps.period
+		? ((qh->ps.usecs + qh->ps.c_usecs) / qh->ps.period)
+		: (qh->ps.usecs * 8);
 
-	dev_dbg (&qh->dev->dev,
+	dev_dbg(&qh->ps.udev->dev,
 		"unlink qh%d-%04x/%p start %d [%d/%d us]\n",
-		qh->period,
+		qh->ps.period,
 		hc32_to_cpup(ehci, &qh->hw->hw_info2) & (QH_CMASK | QH_SMASK),
-		qh, qh->start, qh->usecs, qh->c_usecs);
+		qh, qh->ps.phase, qh->ps.usecs, qh->ps.c_usecs);
 
 	/* qh->qh_next still "live" to HC */
 	qh->qh_state = QH_STATE_UNLINK;
@@ -744,26 +743,26 @@ static int check_intr_schedule (
 	int		retval = -ENOSPC;
 	u8		mask = 0;
 
-	if (qh->c_usecs && uframe >= 6)		/* FSTN territory? */
+	if (qh->ps.c_usecs && uframe >= 6)	/* FSTN territory? */
 		goto done;
 
-	if (!check_period (ehci, frame, uframe, qh->period, qh->usecs))
+	if (!check_period(ehci, frame, uframe, qh->ps.period, qh->ps.usecs))
 		goto done;
-	if (!qh->c_usecs) {
+	if (!qh->ps.c_usecs) {
 		retval = 0;
 		*c_maskp = 0;
 		goto done;
 	}
 
 #ifdef CONFIG_USB_EHCI_TT_NEWSCHED
-	if (tt_available (ehci, qh->period, qh->dev, frame, uframe,
-				qh->tt_usecs)) {
+	if (tt_available(ehci, qh->ps.period, qh->ps.udev, frame, uframe,
+				qh->ps.tt_usecs)) {
 		unsigned i;
 
 		/* TODO : this may need FSTN for SSPLIT in uframe 5. */
 		for (i = uframe+2; i < 8 && i <= uframe+4; i++)
-			if (!check_period (ehci, frame, i,
-						qh->period, qh->c_usecs))
+			if (!check_period(ehci, frame, i,
+					qh->ps.period, qh->ps.c_usecs))
 				goto done;
 			else
 				mask |= 1 << i;
@@ -784,12 +783,12 @@ static int check_intr_schedule (
 	*c_maskp = cpu_to_hc32(ehci, mask << 8);
 
 	mask |= 1 << uframe;
-	if (tt_no_collision (ehci, qh->period, qh->dev, frame, mask)) {
-		if (!check_period (ehci, frame, uframe + qh->gap_uf + 1,
-					qh->period, qh->c_usecs))
+	if (tt_no_collision(ehci, qh->ps.period, qh->ps.udev, frame, mask)) {
+		if (!check_period(ehci, frame, uframe + qh->gap_uf + 1,
+				qh->ps.period, qh->ps.c_usecs))
 			goto done;
-		if (!check_period (ehci, frame, uframe + qh->gap_uf,
-					qh->period, qh->c_usecs))
+		if (!check_period(ehci, frame, uframe + qh->gap_uf,
+				qh->ps.period, qh->ps.c_usecs))
 			goto done;
 		retval = 0;
 	}
@@ -810,7 +809,7 @@ static int qh_schedule(struct ehci_hcd *ehci, struct ehci_qh *qh)
 	struct ehci_qh_hw	*hw = qh->hw;
 
 	hw->hw_next = EHCI_LIST_END(ehci);
-	frame = qh->start;
+	frame = qh->ps.phase;
 
 	/* reuse the previous schedule slots, if we can */
 	if (frame != NO_FRAME) {
@@ -828,11 +827,11 @@ static int qh_schedule(struct ehci_hcd *ehci, struct ehci_qh *qh)
 	 */
 	if (status) {
 		/* "normal" case, uframing flexible except with splits */
-		if (qh->period) {
+		if (qh->ps.period) {
 			int		i;
 
-			for (i = qh->period; status && i > 0; --i) {
-				frame = ++ehci->random_frame % qh->period;
+			for (i = qh->ps.period; status && i > 0; --i) {
+				frame = ++ehci->random_frame % qh->ps.period;
 				for (uframe = 0; uframe < 8; uframe++) {
 					status = check_intr_schedule (ehci,
 							frame, uframe, qh,
@@ -842,18 +841,18 @@ static int qh_schedule(struct ehci_hcd *ehci, struct ehci_qh *qh)
 				}
 			}
 
-		/* qh->period == 0 means every uframe */
+		/* qh->ps.period == 0 means every uframe */
 		} else {
 			frame = 0;
 			status = check_intr_schedule (ehci, 0, 0, qh, &c_mask);
 		}
 		if (status)
 			goto done;
-		qh->start = frame;
+		qh->ps.phase = frame;
 
 		/* reset S-frame and (maybe) C-frame masks */
 		hw->hw_info2 &= cpu_to_hc32(ehci, ~(QH_CMASK | QH_SMASK));
-		hw->hw_info2 |= qh->period
+		hw->hw_info2 |= qh->ps.period
 			? cpu_to_hc32(ehci, 1 << uframe)
 			: cpu_to_hc32(ehci, QH_SMASK);
 		hw->hw_info2 |= c_mask;
@@ -978,25 +977,24 @@ static void
 iso_stream_init (
 	struct ehci_hcd		*ehci,
 	struct ehci_iso_stream	*stream,
-	struct usb_device	*dev,
-	int			pipe,
-	unsigned		interval
+	struct urb		*urb
 )
 {
 	static const u8 smask_out [] = { 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f };
 
+	struct usb_device	*dev = urb->dev;
+	unsigned		interval = urb->interval;
 	u32			buf1;
 	unsigned		epnum, maxp;
 	int			is_input;
-	long			bandwidth;
 
 	/*
 	 * this might be a "high bandwidth" highspeed endpoint,
 	 * as encoded in the ep descriptor's wMaxPacket field
 	 */
-	epnum = usb_pipeendpoint (pipe);
-	is_input = usb_pipein (pipe) ? USB_DIR_IN : 0;
-	maxp = usb_maxpacket(dev, pipe, !is_input);
+	epnum = usb_pipeendpoint(urb->pipe);
+	is_input = usb_pipein(urb->pipe) ? USB_DIR_IN : 0;
+	maxp = usb_endpoint_maxp(&urb->ep->desc);
 	if (is_input) {
 		buf1 = (1 << 11);
 	} else {
@@ -1020,9 +1018,11 @@ iso_stream_init (
 		/* usbfs wants to report the average usecs per frame tied up
 		 * when transfers on this endpoint are scheduled ...
 		 */
-		stream->usecs = HS_USECS_ISO (maxp);
-		bandwidth = stream->usecs * 8;
-		bandwidth /= interval;
+		stream->ps.usecs = HS_USECS_ISO(maxp);
+
+		stream->bandwidth = stream->ps.usecs * 8 / interval;
+		stream->uperiod = interval;
+		stream->ps.period = interval >> 3;
 
 	} else {
 		u32		addr;
@@ -1036,17 +1036,17 @@ iso_stream_init (
 			addr |= dev->tt->hub->devnum << 16;
 		addr |= epnum << 8;
 		addr |= dev->devnum;
-		stream->usecs = HS_USECS_ISO (maxp);
+		stream->ps.usecs = HS_USECS_ISO(maxp);
 		think_time = dev->tt ? dev->tt->think_time : 0;
-		stream->tt_usecs = NS_TO_US (think_time + usb_calc_bus_time (
+		stream->ps.tt_usecs = NS_TO_US(think_time + usb_calc_bus_time(
 				dev->speed, is_input, 1, maxp));
 		hs_transfers = max (1u, (maxp + 187) / 188);
 		if (is_input) {
 			u32	tmp;
 
 			addr |= 1 << 31;
-			stream->c_usecs = stream->usecs;
-			stream->usecs = HS_USECS_ISO (1);
+			stream->ps.c_usecs = stream->ps.usecs;
+			stream->ps.usecs = HS_USECS_ISO(1);
 			stream->raw_mask = 1;
 
 			/* c-mask as specified in USB 2.0 11.18.4 3.c */
@@ -1054,18 +1054,20 @@ iso_stream_init (
 			stream->raw_mask |= tmp << (8 + 2);
 		} else
 			stream->raw_mask = smask_out [hs_transfers - 1];
-		bandwidth = stream->usecs + stream->c_usecs;
-		bandwidth /= interval;
+
+		stream->bandwidth = (stream->ps.usecs + stream->ps.c_usecs) /
+				interval;
+		stream->uperiod = interval << 3;
+		stream->ps.period = interval;
 
 		/* stream->splits gets created from raw_mask later */
 		stream->address = cpu_to_hc32(ehci, addr);
 	}
-	stream->bandwidth = bandwidth;
 
-	stream->udev = dev;
+	stream->ps.udev = dev;
+	stream->ps.ep = urb->ep;
 
 	stream->bEndpointAddress = is_input | epnum;
-	stream->interval = interval;
 	stream->maxp = maxp;
 }
 
@@ -1090,9 +1092,7 @@ iso_stream_find (struct ehci_hcd *ehci, struct urb *urb)
 		stream = iso_stream_alloc(GFP_ATOMIC);
 		if (likely (stream != NULL)) {
 			ep->hcpriv = stream;
-			stream->ep = ep;
-			iso_stream_init(ehci, stream, urb->dev, urb->pipe,
-					urb->interval);
+			iso_stream_init(ehci, stream, urb);
 		}
 
 	/* if dev->ep [epnum] is a QH, hw is set */
@@ -1137,7 +1137,7 @@ itd_sched_init(
 	dma_addr_t	dma = urb->transfer_dma;
 
 	/* how many uframes are needed for these transfers */
-	iso_sched->span = urb->number_of_packets * stream->interval;
+	iso_sched->span = urb->number_of_packets * stream->uperiod;
 
 	/* figure out per-uframe itd fields that we'll need later
 	 * when we fit new itds into the schedule.
@@ -1304,14 +1304,14 @@ sitd_slot_ok (
 	 */
 	uf = uframe & 7;
 	if (!tt_available(ehci, period_uframes >> 3,
-			stream->udev, frame, uf, stream->tt_usecs))
+			stream->ps.udev, frame, uf, stream->ps.tt_usecs))
 		return 0;
 #else
 	/* tt must be idle for start(s), any gap, and csplit.
 	 * assume scheduling slop leaves 10+% for control/bulk.
 	 */
 	if (!tt_no_collision(ehci, period_uframes >> 3,
-			stream->udev, frame, mask))
+			stream->ps.udev, frame, mask))
 		return 0;
 #endif
 
@@ -1325,16 +1325,17 @@ sitd_slot_ok (
 		uf = uframe & 7;
 
 		/* check starts (OUT uses more than one) */
-		max_used = ehci->uframe_periodic_max - stream->usecs;
+		max_used = ehci->uframe_periodic_max - stream->ps.usecs;
 		for (tmp = stream->raw_mask & 0xff; tmp; tmp >>= 1, uf++) {
 			if (periodic_usecs (ehci, frame, uf) > max_used)
 				return 0;
 		}
 
 		/* for IN, check CSPLIT */
-		if (stream->c_usecs) {
+		if (stream->ps.c_usecs) {
 			uf = uframe & 7;
-			max_used = ehci->uframe_periodic_max - stream->c_usecs;
+			max_used = ehci->uframe_periodic_max -
+					stream->ps.c_usecs;
 			do {
 				tmp = 1 << uf;
 				tmp <<= 8;
@@ -1428,7 +1429,7 @@ iso_stream_schedule (
 			/* check schedule: enough space? */
 			if (stream->highspeed) {
 				if (itd_slot_ok(ehci, mod, start,
-						stream->usecs, period))
+						stream->ps.usecs, period))
 					done = 1;
 			} else {
 				if ((start % 8) >= 6)
@@ -1668,7 +1669,7 @@ static void itd_link_urb(
 
 		itd_patch(ehci, itd, iso_sched, packet, uframe);
 
-		next_uframe += stream->interval;
+		next_uframe += stream->uperiod;
 		next_uframe &= mod - 1;
 		packet++;
 
@@ -1808,9 +1809,9 @@ static int itd_submit (struct ehci_hcd *ehci, struct urb *urb,
 		ehci_dbg (ehci, "can't get iso stream\n");
 		return -ENOMEM;
 	}
-	if (unlikely (urb->interval != stream->interval)) {
+	if (unlikely(urb->interval != stream->uperiod)) {
 		ehci_dbg (ehci, "can't change iso interval %d --> %d\n",
-			stream->interval, urb->interval);
+			stream->uperiod, urb->interval);
 		goto done;
 	}
 
@@ -1875,7 +1876,7 @@ sitd_sched_init(
 	dma_addr_t	dma = urb->transfer_dma;
 
 	/* how many frames are needed for these transfers */
-	iso_sched->span = urb->number_of_packets * stream->interval;
+	iso_sched->span = urb->number_of_packets * stream->ps.period;
 
 	/* figure out per-frame sitd fields that we'll need later
 	 * when we fit new sitds into the schedule.
@@ -2069,7 +2070,7 @@ static void sitd_link_urb(
 		sitd_link(ehci, (next_uframe >> 3) & (ehci->periodic_size - 1),
 				sitd);
 
-		next_uframe += stream->interval << 3;
+		next_uframe += stream->uperiod;
 	}
 	stream->next_uframe = next_uframe & (mod - 1);
 
@@ -2188,9 +2189,9 @@ static int sitd_submit (struct ehci_hcd *ehci, struct urb *urb,
 		ehci_dbg (ehci, "can't get iso stream\n");
 		return -ENOMEM;
 	}
-	if (urb->interval != stream->interval) {
+	if (urb->interval != stream->ps.period) {
 		ehci_dbg (ehci, "can't change iso interval %d --> %d\n",
-			stream->interval, urb->interval);
+			stream->ps.period, urb->interval);
 		goto done;
 	}
 
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index b93eb59bb529..e2b64c40d94f 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -54,6 +54,19 @@ struct ehci_stats {
 	unsigned long		unlink;
 };
 
+/*
+ * Scheduling and budgeting information for periodic transfers, for both
+ * high-speed devices and full/low-speed devices lying behind a TT.
+ */
+struct ehci_per_sched {
+	struct usb_device	*udev;		/* access to the TT */
+	struct usb_host_endpoint *ep;
+	u16			tt_usecs;	/* time on the FS/LS bus */
+	u16			period;		/* actual period in frames */
+	u16			phase;		/* actual phase, frame part */
+	u8			phase_uf;	/* uframe part of the phase */
+	u8			usecs, c_usecs;	/* times on the HS bus */
+};
 #define NO_FRAME	29999			/* frame not assigned yet */
 
 /* ehci_hcd->lock guards shared data against other CPUs:
@@ -387,6 +400,7 @@ struct ehci_qh {
 	struct list_head	intr_node;	/* list of intr QHs */
 	struct ehci_qtd		*dummy;
 	struct list_head	unlink_node;
+	struct ehci_per_sched	ps;		/* scheduling info */
 
 	unsigned		unlink_cycle;
 
@@ -400,15 +414,8 @@ struct ehci_qh {
 	u8			xacterrs;	/* XactErr retry counter */
 #define	QH_XACTERR_MAX		32		/* XactErr retry limit */
 
-	/* periodic schedule info */
-	u8			usecs;		/* intr bandwidth */
 	u8			gap_uf;		/* uframes split/csplit gap */
-	u8			c_usecs;	/* ... split completion bw */
-	u16			tt_usecs;	/* tt downstream bandwidth */
-	unsigned short		period;		/* polling interval */
-	unsigned short		start;		/* where polling starts */
 
-	struct usb_device	*dev;		/* access to TT */
 	unsigned		is_out:1;	/* bulk or intr OUT */
 	unsigned		clearing_tt:1;	/* Clear-TT-Buf in progress */
 	unsigned		dequeue_during_giveback:1;
@@ -451,20 +458,16 @@ struct ehci_iso_stream {
 	u8			highspeed;
 	struct list_head	td_list;	/* queued itds/sitds */
 	struct list_head	free_list;	/* list of unused itds/sitds */
-	struct usb_device	*udev;
-	struct usb_host_endpoint *ep;
 
 	/* output of (re)scheduling */
+	struct ehci_per_sched	ps;		/* scheduling info */
 	unsigned		next_uframe;
 	__hc32			splits;
 
 	/* the rest is derived from the endpoint descriptor,
-	 * trusting urb->interval == f(epdesc->bInterval) and
 	 * including the extra info for hw_bufp[0..2]
 	 */
-	u8			usecs, c_usecs;
-	u16			interval;
-	u16			tt_usecs;
+	u16			uperiod;	/* period in uframes */
 	u16			maxp;
 	u16			raw_mask;
 	unsigned		bandwidth;
-- 
cgit 


From d0ce5c6b9208c79fc725c578eebdeb5724faf17d Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 11 Oct 2013 11:29:13 -0400
Subject: USB: EHCI: use a bandwidth-allocation table

This patch significantly changes the scheduling code in ehci-hcd.
Instead of calculating the current bandwidth utilization by trudging
through the schedule and adding up the times used by the existing
transfers, we will now maintain a table holding the time used for each
of 64 microframes.  This will drastically speed up the bandwidth
computations.

In addition, it eliminates a theoretical bug.  An isochronous endpoint
may have bandwidth reserved even at times when it has no transfers
listed in the schedule.  The table will keep track of the reserved
bandwidth, whereas adding up entries in the schedule would miss it.

As a corollary, we can keep bandwidth reserved for endpoints even
when they aren't in active use.  Eventually the bandwidth will be
reserved when a new alternate setting is installed; for now the
endpoint's reservation takes place when its first URB is submitted.

A drawback of this approach is that transfers with an interval larger
than 64 microframes will have to be charged for bandwidth as though
the interval was 64.  In practice this shouldn't matter much;
transfers with longer intervals tend to be rather short anyway (things
like hubs or HID devices).

Another minor drawback is that we will keep track of two different
period and phase values: the actual ones and the ones used for
bandwidth allocation (which are limited to 64).  This adds only a
small amount of overhead: 3 bytes for each endpoint.

The patch also adds a new debugfs file named "bandwidth" to display
the information stored in the new table.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-dbg.c   |  56 +++++
 drivers/usb/host/ehci-hcd.c   |   3 +
 drivers/usb/host/ehci-q.c     |  19 ++
 drivers/usb/host/ehci-sched.c | 482 ++++++++++++++++++++++--------------------
 drivers/usb/host/ehci-sysfs.c |  15 +-
 drivers/usb/host/ehci.h       |  13 +-
 6 files changed, 344 insertions(+), 244 deletions(-)

diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c
index 09e5bc8e2b98..5bbfb1f9929c 100644
--- a/drivers/usb/host/ehci-dbg.c
+++ b/drivers/usb/host/ehci-dbg.c
@@ -334,6 +334,7 @@ static inline void remove_debug_files (struct ehci_hcd *bus) { }
 /* troubleshooting help: expose state in debugfs */
 
 static int debug_async_open(struct inode *, struct file *);
+static int debug_bandwidth_open(struct inode *, struct file *);
 static int debug_periodic_open(struct inode *, struct file *);
 static int debug_registers_open(struct inode *, struct file *);
 
@@ -347,6 +348,13 @@ static const struct file_operations debug_async_fops = {
 	.release	= debug_close,
 	.llseek		= default_llseek,
 };
+static const struct file_operations debug_bandwidth_fops = {
+	.owner		= THIS_MODULE,
+	.open		= debug_bandwidth_open,
+	.read		= debug_output,
+	.release	= debug_close,
+	.llseek		= default_llseek,
+};
 static const struct file_operations debug_periodic_fops = {
 	.owner		= THIS_MODULE,
 	.open		= debug_periodic_open,
@@ -525,6 +533,41 @@ static ssize_t fill_async_buffer(struct debug_buffer *buf)
 	return strlen(buf->output_buf);
 }
 
+static ssize_t fill_bandwidth_buffer(struct debug_buffer *buf)
+{
+	struct ehci_hcd		*ehci;
+	unsigned		temp, size;
+	char			*next;
+	unsigned		i;
+	u8			*bw;
+
+	ehci = hcd_to_ehci(bus_to_hcd(buf->bus));
+	next = buf->output_buf;
+	size = buf->alloc_size;
+
+	*next = 0;
+
+	spin_lock_irq(&ehci->lock);
+
+	/* Dump the HS bandwidth table */
+	temp = scnprintf(next, size,
+			"HS bandwidth allocation (us per microframe)\n");
+	size -= temp;
+	next += temp;
+	for (i = 0; i < EHCI_BANDWIDTH_SIZE; i += 8) {
+		bw = &ehci->bandwidth[i];
+		temp = scnprintf(next, size,
+				"%2u: %4u%4u%4u%4u%4u%4u%4u%4u\n",
+				i, bw[0], bw[1], bw[2], bw[3],
+					bw[4], bw[5], bw[6], bw[7]);
+		size -= temp;
+		next += temp;
+	}
+	spin_unlock_irq(&ehci->lock);
+
+	return next - buf->output_buf;
+}
+
 #define DBG_SCHED_LIMIT 64
 static ssize_t fill_periodic_buffer(struct debug_buffer *buf)
 {
@@ -919,6 +962,7 @@ static int debug_close(struct inode *inode, struct file *file)
 
 	return 0;
 }
+
 static int debug_async_open(struct inode *inode, struct file *file)
 {
 	file->private_data = alloc_buffer(inode->i_private, fill_async_buffer);
@@ -926,6 +970,14 @@ static int debug_async_open(struct inode *inode, struct file *file)
 	return file->private_data ? 0 : -ENOMEM;
 }
 
+static int debug_bandwidth_open(struct inode *inode, struct file *file)
+{
+	file->private_data = alloc_buffer(inode->i_private,
+			fill_bandwidth_buffer);
+
+	return file->private_data ? 0 : -ENOMEM;
+}
+
 static int debug_periodic_open(struct inode *inode, struct file *file)
 {
 	struct debug_buffer *buf;
@@ -958,6 +1010,10 @@ static inline void create_debug_files (struct ehci_hcd *ehci)
 						&debug_async_fops))
 		goto file_error;
 
+	if (!debugfs_create_file("bandwidth", S_IRUGO, ehci->debug_dir, bus,
+						&debug_bandwidth_fops))
+		goto file_error;
+
 	if (!debugfs_create_file("periodic", S_IRUGO, ehci->debug_dir, bus,
 						&debug_periodic_fops))
 		goto file_error;
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index b2e4e4b3cfae..398e8fa3032f 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -956,6 +956,7 @@ rescan:
 			goto idle_timeout;
 
 		/* BUG_ON(!list_empty(&stream->free_list)); */
+		reserve_release_iso_bandwidth(ehci, stream, -1);
 		kfree(stream);
 		goto done;
 	}
@@ -982,6 +983,8 @@ idle_timeout:
 		if (qh->clearing_tt)
 			goto idle_timeout;
 		if (list_empty (&qh->qtd_list)) {
+			if (qh->ps.bw_uperiod)
+				reserve_release_intr_bandwidth(ehci, qh, -1);
 			qh_destroy(ehci, qh);
 			break;
 		}
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index 9bfaa21707bd..db05bd8ee9d5 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -797,6 +797,8 @@ qh_make (
 	 * For control/bulk requests, the HC or TT handles these.
 	 */
 	if (type == PIPE_INTERRUPT) {
+		unsigned	tmp;
+
 		qh->ps.usecs = NS_TO_US(usb_calc_bus_time(USB_SPEED_HIGH,
 				is_input, 0,
 				hb_mult(maxp) * max_packet(maxp)));
@@ -816,6 +818,14 @@ qh_make (
 				urb->interval = ehci->periodic_size << 3;
 			}
 			qh->ps.period = urb->interval >> 3;
+
+			/* period for bandwidth allocation */
+			tmp = min_t(unsigned, EHCI_BANDWIDTH_SIZE,
+					1 << (urb->ep->desc.bInterval - 1));
+
+			/* Allow urb->interval to override */
+			qh->ps.bw_uperiod = min_t(unsigned, tmp, urb->interval);
+			qh->ps.bw_period = qh->ps.bw_uperiod >> 3;
 		} else {
 			int		think_time;
 
@@ -839,6 +849,15 @@ qh_make (
 			if (urb->interval > ehci->periodic_size)
 				urb->interval = ehci->periodic_size;
 			qh->ps.period = urb->interval;
+
+			/* period for bandwidth allocation */
+			tmp = min_t(unsigned, EHCI_BANDWIDTH_FRAMES,
+					urb->ep->desc.bInterval);
+			tmp = rounddown_pow_of_two(tmp);
+
+			/* Allow urb->interval to override */
+			qh->ps.bw_period = min_t(unsigned, tmp, urb->interval);
+			qh->ps.bw_uperiod = qh->ps.bw_period << 3;
 		}
 	}
 
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 1fafcda0ae81..790a64c0da5c 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -106,75 +106,53 @@ static void periodic_unlink (struct ehci_hcd *ehci, unsigned frame, void *ptr)
 		*hw_p = ehci->dummy->qh_dma;
 }
 
-/* how many of the uframe's 125 usecs are allocated? */
-static unsigned short
-periodic_usecs (struct ehci_hcd *ehci, unsigned frame, unsigned uframe)
+static void bandwidth_dbg(struct ehci_hcd *ehci, int sign, char *type,
+		struct ehci_per_sched *ps)
 {
-	__hc32			*hw_p = &ehci->periodic [frame];
-	union ehci_shadow	*q = &ehci->pshadow [frame];
-	unsigned		usecs = 0;
-	struct ehci_qh_hw	*hw;
+	dev_dbg(&ps->udev->dev,
+			"ep %02x: %s %s @ %u+%u (%u.%u+%u) [%u/%u us] mask %04x\n",
+			ps->ep->desc.bEndpointAddress,
+			(sign >= 0 ? "reserve" : "release"), type,
+			(ps->bw_phase << 3) + ps->phase_uf, ps->bw_uperiod,
+			ps->phase, ps->phase_uf, ps->period,
+			ps->usecs, ps->c_usecs, ps->cs_mask);
+}
 
-	while (q->ptr) {
-		switch (hc32_to_cpu(ehci, Q_NEXT_TYPE(ehci, *hw_p))) {
-		case Q_TYPE_QH:
-			hw = q->qh->hw;
-			/* is it in the S-mask? */
-			if (hw->hw_info2 & cpu_to_hc32(ehci, 1 << uframe))
-				usecs += q->qh->ps.usecs;
-			/* ... or C-mask? */
-			if (hw->hw_info2 & cpu_to_hc32(ehci,
-					1 << (8 + uframe)))
-				usecs += q->qh->ps.c_usecs;
-			hw_p = &hw->hw_next;
-			q = &q->qh->qh_next;
-			break;
-		// case Q_TYPE_FSTN:
-		default:
-			/* for "save place" FSTNs, count the relevant INTR
-			 * bandwidth from the previous frame
-			 */
-			if (q->fstn->hw_prev != EHCI_LIST_END(ehci)) {
-				ehci_dbg (ehci, "ignoring FSTN cost ...\n");
-			}
-			hw_p = &q->fstn->hw_next;
-			q = &q->fstn->fstn_next;
-			break;
-		case Q_TYPE_ITD:
-			if (q->itd->hw_transaction[uframe])
-				usecs += q->itd->stream->ps.usecs;
-			hw_p = &q->itd->hw_next;
-			q = &q->itd->itd_next;
-			break;
-		case Q_TYPE_SITD:
-			/* is it in the S-mask?  (count SPLIT, DATA) */
-			if (q->sitd->hw_uframe & cpu_to_hc32(ehci,
-					1 << uframe)) {
-				if (q->sitd->hw_fullspeed_ep &
-						cpu_to_hc32(ehci, 1<<31))
-					usecs += q->sitd->stream->ps.usecs;
-				else	/* worst case for OUT start-split */
-					usecs += HS_USECS_ISO (188);
-			}
+static void reserve_release_intr_bandwidth(struct ehci_hcd *ehci,
+		struct ehci_qh *qh, int sign)
+{
+	unsigned		start_uf;
+	unsigned		i, j, m;
+	int			usecs = qh->ps.usecs;
+	int			c_usecs = qh->ps.c_usecs;
 
-			/* ... C-mask?  (count CSPLIT, DATA) */
-			if (q->sitd->hw_uframe &
-					cpu_to_hc32(ehci, 1 << (8 + uframe))) {
-				/* worst case for IN complete-split */
-				usecs += q->sitd->stream->ps.c_usecs;
-			}
+	if (qh->ps.phase == NO_FRAME)	/* Bandwidth wasn't reserved */
+		return;
+	start_uf = qh->ps.bw_phase << 3;
 
-			hw_p = &q->sitd->hw_next;
-			q = &q->sitd->sitd_next;
-			break;
+	bandwidth_dbg(ehci, sign, "intr", &qh->ps);
+
+	if (sign < 0) {		/* Release bandwidth */
+		usecs = -usecs;
+		c_usecs = -c_usecs;
+	}
+
+	/* Entire transaction (high speed) or start-split (full/low speed) */
+	for (i = start_uf + qh->ps.phase_uf; i < EHCI_BANDWIDTH_SIZE;
+			i += qh->ps.bw_uperiod)
+		ehci->bandwidth[i] += usecs;
+
+	/* Complete-split (full/low speed) */
+	if (qh->ps.c_usecs) {
+		/* NOTE: adjustments needed for FSTN */
+		for (i = start_uf; i < EHCI_BANDWIDTH_SIZE;
+				i += qh->ps.bw_uperiod) {
+			for ((j = 2, m = 1 << (j+8)); j < 8; (++j, m <<= 1)) {
+				if (qh->ps.cs_mask & m)
+					ehci->bandwidth[i+j] += c_usecs;
+			}
 		}
 	}
-#if defined(DEBUG) || defined(CONFIG_DYNAMIC_DEBUG)
-	if (usecs > ehci->uframe_periodic_max)
-		ehci_err (ehci, "uframe %d sched overrun: %d usecs\n",
-			frame * 8 + uframe, usecs);
-#endif
-	return usecs;
 }
 
 /*-------------------------------------------------------------------------*/
@@ -524,8 +502,8 @@ static void qh_link_periodic(struct ehci_hcd *ehci, struct ehci_qh *qh)
 	qh->exception = 0;
 
 	/* update per-qh bandwidth for debugfs */
-	ehci_to_hcd(ehci)->self.bandwidth_allocated += qh->ps.period
-		? ((qh->ps.usecs + qh->ps.c_usecs) / qh->ps.period)
+	ehci_to_hcd(ehci)->self.bandwidth_allocated += qh->ps.bw_period
+		? ((qh->ps.usecs + qh->ps.c_usecs) / qh->ps.bw_period)
 		: (qh->ps.usecs * 8);
 
 	list_add(&qh->intr_node, &ehci->intr_qh_list);
@@ -562,8 +540,8 @@ static void qh_unlink_periodic(struct ehci_hcd *ehci, struct ehci_qh *qh)
 		periodic_unlink (ehci, i, qh);
 
 	/* update per-qh bandwidth for debugfs */
-	ehci_to_hcd(ehci)->self.bandwidth_allocated -= qh->ps.period
-		? ((qh->ps.usecs + qh->ps.c_usecs) / qh->ps.period)
+	ehci_to_hcd(ehci)->self.bandwidth_allocated -= qh->ps.bw_period
+		? ((qh->ps.usecs + qh->ps.c_usecs) / qh->ps.bw_period)
 		: (qh->ps.usecs * 8);
 
 	dev_dbg(&qh->ps.udev->dev,
@@ -693,11 +671,9 @@ static int check_period (
 	struct ehci_hcd *ehci,
 	unsigned	frame,
 	unsigned	uframe,
-	unsigned	period,
+	unsigned	uperiod,
 	unsigned	usecs
 ) {
-	int		claimed;
-
 	/* complete split running into next frame?
 	 * given FSTN support, we could sometimes check...
 	 */
@@ -707,25 +683,10 @@ static int check_period (
 	/* convert "usecs we need" to "max already claimed" */
 	usecs = ehci->uframe_periodic_max - usecs;
 
-	/* we "know" 2 and 4 uframe intervals were rejected; so
-	 * for period 0, check _every_ microframe in the schedule.
-	 */
-	if (unlikely (period == 0)) {
-		do {
-			for (uframe = 0; uframe < 7; uframe++) {
-				claimed = periodic_usecs (ehci, frame, uframe);
-				if (claimed > usecs)
-					return 0;
-			}
-		} while ((frame += 1) < ehci->periodic_size);
-
-	/* just check the specified uframe, at that period */
-	} else {
-		do {
-			claimed = periodic_usecs (ehci, frame, uframe);
-			if (claimed > usecs)
-				return 0;
-		} while ((frame += period) < ehci->periodic_size);
+	for (uframe += frame << 3; uframe < EHCI_BANDWIDTH_SIZE;
+			uframe += uperiod) {
+		if (ehci->bandwidth[uframe] > usecs)
+			return 0;
 	}
 
 	// success!
@@ -746,7 +707,7 @@ static int check_intr_schedule (
 	if (qh->ps.c_usecs && uframe >= 6)	/* FSTN territory? */
 		goto done;
 
-	if (!check_period(ehci, frame, uframe, qh->ps.period, qh->ps.usecs))
+	if (!check_period(ehci, frame, uframe, qh->ps.bw_uperiod, qh->ps.usecs))
 		goto done;
 	if (!qh->ps.c_usecs) {
 		retval = 0;
@@ -755,21 +716,21 @@ static int check_intr_schedule (
 	}
 
 #ifdef CONFIG_USB_EHCI_TT_NEWSCHED
-	if (tt_available(ehci, qh->ps.period, qh->ps.udev, frame, uframe,
+	if (tt_available(ehci, qh->ps.bw_period, qh->ps.udev, frame, uframe,
 				qh->ps.tt_usecs)) {
 		unsigned i;
 
 		/* TODO : this may need FSTN for SSPLIT in uframe 5. */
 		for (i = uframe+2; i < 8 && i <= uframe+4; i++)
 			if (!check_period(ehci, frame, i,
-					qh->ps.period, qh->ps.c_usecs))
+					qh->ps.bw_uperiod, qh->ps.c_usecs))
 				goto done;
 			else
 				mask |= 1 << i;
 
 		retval = 0;
 
-		*c_maskp = cpu_to_hc32(ehci, mask << 8);
+		*c_maskp = mask;
 	}
 #else
 	/* Make sure this tt's buffer is also available for CSPLITs.
@@ -780,15 +741,15 @@ static int check_intr_schedule (
 	 * one smart pass...
 	 */
 	mask = 0x03 << (uframe + qh->gap_uf);
-	*c_maskp = cpu_to_hc32(ehci, mask << 8);
+	*c_maskp = mask;
 
 	mask |= 1 << uframe;
-	if (tt_no_collision(ehci, qh->ps.period, qh->ps.udev, frame, mask)) {
+	if (tt_no_collision(ehci, qh->ps.bw_period, qh->ps.udev, frame, mask)) {
 		if (!check_period(ehci, frame, uframe + qh->gap_uf + 1,
-				qh->ps.period, qh->ps.c_usecs))
+				qh->ps.bw_uperiod, qh->ps.c_usecs))
 			goto done;
 		if (!check_period(ehci, frame, uframe + qh->gap_uf,
-				qh->ps.period, qh->ps.c_usecs))
+				qh->ps.bw_uperiod, qh->ps.c_usecs))
 			goto done;
 		retval = 0;
 	}
@@ -804,60 +765,57 @@ static int qh_schedule(struct ehci_hcd *ehci, struct ehci_qh *qh)
 {
 	int		status;
 	unsigned	uframe;
-	__hc32		c_mask;
-	unsigned	frame;		/* 0..(qh->period - 1), or NO_FRAME */
+	unsigned	c_mask;
 	struct ehci_qh_hw	*hw = qh->hw;
 
 	hw->hw_next = EHCI_LIST_END(ehci);
-	frame = qh->ps.phase;
 
 	/* reuse the previous schedule slots, if we can */
-	if (frame != NO_FRAME) {
-		uframe = ffs(hc32_to_cpup(ehci, &hw->hw_info2) & QH_SMASK);
-		status = check_intr_schedule (ehci, frame, --uframe,
-				qh, &c_mask);
-	} else {
-		uframe = 0;
-		c_mask = 0;
-		status = -ENOSPC;
+	if (qh->ps.phase != NO_FRAME) {
+		ehci_dbg(ehci, "reused qh %p schedule\n", qh);
+		return 0;
 	}
 
+	uframe = 0;
+	c_mask = 0;
+	status = -ENOSPC;
+
 	/* else scan the schedule to find a group of slots such that all
 	 * uframes have enough periodic bandwidth available.
 	 */
-	if (status) {
-		/* "normal" case, uframing flexible except with splits */
-		if (qh->ps.period) {
-			int		i;
-
-			for (i = qh->ps.period; status && i > 0; --i) {
-				frame = ++ehci->random_frame % qh->ps.period;
-				for (uframe = 0; uframe < 8; uframe++) {
-					status = check_intr_schedule (ehci,
-							frame, uframe, qh,
-							&c_mask);
-					if (status == 0)
-						break;
-				}
+	/* "normal" case, uframing flexible except with splits */
+	if (qh->ps.bw_period) {
+		int		i;
+		unsigned	frame;
+
+		for (i = qh->ps.bw_period; status && i > 0; --i) {
+			frame = ++ehci->random_frame & (qh->ps.bw_period - 1);
+			for (uframe = 0; uframe < 8; uframe++) {
+				status = check_intr_schedule(ehci,
+						frame, uframe, qh, &c_mask);
+				if (status == 0)
+					break;
 			}
-
-		/* qh->ps.period == 0 means every uframe */
-		} else {
-			frame = 0;
-			status = check_intr_schedule (ehci, 0, 0, qh, &c_mask);
 		}
-		if (status)
-			goto done;
-		qh->ps.phase = frame;
 
-		/* reset S-frame and (maybe) C-frame masks */
-		hw->hw_info2 &= cpu_to_hc32(ehci, ~(QH_CMASK | QH_SMASK));
-		hw->hw_info2 |= qh->ps.period
-			? cpu_to_hc32(ehci, 1 << uframe)
-			: cpu_to_hc32(ehci, QH_SMASK);
-		hw->hw_info2 |= c_mask;
-	} else
-		ehci_dbg (ehci, "reused qh %p schedule\n", qh);
+	/* qh->ps.bw_period == 0 means every uframe */
+	} else {
+		status = check_intr_schedule(ehci, 0, 0, qh, &c_mask);
+	}
+	if (status)
+		goto done;
+	qh->ps.phase = (qh->ps.period ? ehci->random_frame &
+			(qh->ps.period - 1) : 0);
+	qh->ps.bw_phase = qh->ps.phase & (qh->ps.bw_period - 1);
+	qh->ps.phase_uf = uframe;
+	qh->ps.cs_mask = qh->ps.period ?
+			(c_mask << 8) | (1 << uframe) :
+			QH_SMASK;
+
+	/* reset S-frame and (maybe) C-frame masks */
+	hw->hw_info2 &= cpu_to_hc32(ehci, ~(QH_CMASK | QH_SMASK));
+	hw->hw_info2 |= cpu_to_hc32(ehci, qh->ps.cs_mask);
+	reserve_release_intr_bandwidth(ehci, qh, 1);
 
 done:
 	return status;
@@ -969,6 +927,7 @@ iso_stream_alloc (gfp_t mem_flags)
 		INIT_LIST_HEAD(&stream->td_list);
 		INIT_LIST_HEAD(&stream->free_list);
 		stream->next_uframe = NO_FRAME;
+		stream->ps.phase = NO_FRAME;
 	}
 	return stream;
 }
@@ -983,10 +942,10 @@ iso_stream_init (
 	static const u8 smask_out [] = { 0x01, 0x03, 0x07, 0x0f, 0x1f, 0x3f };
 
 	struct usb_device	*dev = urb->dev;
-	unsigned		interval = urb->interval;
 	u32			buf1;
 	unsigned		epnum, maxp;
 	int			is_input;
+	unsigned		tmp;
 
 	/*
 	 * this might be a "high bandwidth" highspeed endpoint,
@@ -1020,9 +979,17 @@ iso_stream_init (
 		 */
 		stream->ps.usecs = HS_USECS_ISO(maxp);
 
-		stream->bandwidth = stream->ps.usecs * 8 / interval;
-		stream->uperiod = interval;
-		stream->ps.period = interval >> 3;
+		/* period for bandwidth allocation */
+		tmp = min_t(unsigned, EHCI_BANDWIDTH_SIZE,
+				1 << (urb->ep->desc.bInterval - 1));
+
+		/* Allow urb->interval to override */
+		stream->ps.bw_uperiod = min_t(unsigned, tmp, urb->interval);
+
+		stream->uperiod = urb->interval;
+		stream->ps.period = urb->interval >> 3;
+		stream->bandwidth = stream->ps.usecs * 8 /
+				stream->ps.bw_uperiod;
 
 	} else {
 		u32		addr;
@@ -1047,20 +1014,28 @@ iso_stream_init (
 			addr |= 1 << 31;
 			stream->ps.c_usecs = stream->ps.usecs;
 			stream->ps.usecs = HS_USECS_ISO(1);
-			stream->raw_mask = 1;
+			stream->ps.cs_mask = 1;
 
 			/* c-mask as specified in USB 2.0 11.18.4 3.c */
 			tmp = (1 << (hs_transfers + 2)) - 1;
-			stream->raw_mask |= tmp << (8 + 2);
+			stream->ps.cs_mask |= tmp << (8 + 2);
 		} else
-			stream->raw_mask = smask_out [hs_transfers - 1];
+			stream->ps.cs_mask = smask_out[hs_transfers - 1];
+
+		/* period for bandwidth allocation */
+		tmp = min_t(unsigned, EHCI_BANDWIDTH_FRAMES,
+				1 << (urb->ep->desc.bInterval - 1));
 
+		/* Allow urb->interval to override */
+		stream->ps.bw_period = min_t(unsigned, tmp, urb->interval);
+		stream->ps.bw_uperiod = stream->ps.bw_period << 3;
+
+		stream->ps.period = urb->interval;
+		stream->uperiod = urb->interval << 3;
 		stream->bandwidth = (stream->ps.usecs + stream->ps.c_usecs) /
-				interval;
-		stream->uperiod = interval << 3;
-		stream->ps.period = interval;
+				stream->ps.bw_period;
 
-		/* stream->splits gets created from raw_mask later */
+		/* stream->splits gets created from cs_mask later */
 		stream->address = cpu_to_hc32(ehci, addr);
 	}
 
@@ -1249,45 +1224,84 @@ itd_urb_transaction (
 
 /*-------------------------------------------------------------------------*/
 
+static void reserve_release_iso_bandwidth(struct ehci_hcd *ehci,
+		struct ehci_iso_stream *stream, int sign)
+{
+	unsigned		uframe;
+	unsigned		i, j;
+	unsigned		s_mask, c_mask, m;
+	int			usecs = stream->ps.usecs;
+	int			c_usecs = stream->ps.c_usecs;
+
+	if (stream->ps.phase == NO_FRAME)	/* Bandwidth wasn't reserved */
+		return;
+	uframe = stream->ps.bw_phase << 3;
+
+	bandwidth_dbg(ehci, sign, "iso", &stream->ps);
+
+	if (sign < 0) {		/* Release bandwidth */
+		usecs = -usecs;
+		c_usecs = -c_usecs;
+	}
+
+	if (!stream->splits) {		/* High speed */
+		for (i = uframe + stream->ps.phase_uf; i < EHCI_BANDWIDTH_SIZE;
+				i += stream->ps.bw_uperiod)
+			ehci->bandwidth[i] += usecs;
+
+	} else {			/* Full speed */
+		s_mask = stream->ps.cs_mask;
+		c_mask = s_mask >> 8;
+
+		/* NOTE: adjustment needed for frame overflow */
+		for (i = uframe; i < EHCI_BANDWIDTH_SIZE;
+				i += stream->ps.bw_uperiod) {
+			for ((j = stream->ps.phase_uf, m = 1 << j); j < 8;
+					(++j, m <<= 1)) {
+				if (s_mask & m)
+					ehci->bandwidth[i+j] += usecs;
+				else if (c_mask & m)
+					ehci->bandwidth[i+j] += c_usecs;
+			}
+		}
+	}
+}
+
 static inline int
 itd_slot_ok (
 	struct ehci_hcd		*ehci,
-	u32			mod,
-	u32			uframe,
-	u8			usecs,
-	u32			period
+	struct ehci_iso_stream	*stream,
+	unsigned		uframe
 )
 {
-	uframe %= period;
-	do {
-		/* can't commit more than uframe_periodic_max usec */
-		if (periodic_usecs (ehci, uframe >> 3, uframe & 0x7)
-				> (ehci->uframe_periodic_max - usecs))
-			return 0;
+	unsigned		usecs;
+
+	/* convert "usecs we need" to "max already claimed" */
+	usecs = ehci->uframe_periodic_max - stream->ps.usecs;
 
-		/* we know urb->interval is 2^N uframes */
-		uframe += period;
-	} while (uframe < mod);
+	for (uframe &= stream->ps.bw_uperiod - 1; uframe < EHCI_BANDWIDTH_SIZE;
+			uframe += stream->ps.bw_uperiod) {
+		if (ehci->bandwidth[uframe] > usecs)
+			return 0;
+	}
 	return 1;
 }
 
 static inline int
 sitd_slot_ok (
 	struct ehci_hcd		*ehci,
-	u32			mod,
 	struct ehci_iso_stream	*stream,
-	u32			uframe,
-	struct ehci_iso_sched	*sched,
-	u32			period_uframes
+	unsigned		uframe,
+	struct ehci_iso_sched	*sched
 )
 {
-	u32			mask, tmp;
-	u32			frame, uf;
+	unsigned		mask, tmp;
+	unsigned		frame, uf;
 
-	mask = stream->raw_mask << (uframe & 7);
+	mask = stream->ps.cs_mask << (uframe & 7);
 
 	/* for OUT, don't wrap SSPLIT into H-microframe 7 */
-	if (((stream->raw_mask & 0xff) << (uframe & 7)) >= (1 << 7))
+	if (((stream->ps.cs_mask & 0xff) << (uframe & 7)) >= (1 << 7))
 		return 0;
 
 	/* for IN, don't wrap CSPLIT into the next frame */
@@ -1295,7 +1309,7 @@ sitd_slot_ok (
 		return 0;
 
 	/* check bandwidth */
-	uframe %= period_uframes;
+	uframe &= stream->ps.bw_uperiod - 1;
 	frame = uframe >> 3;
 
 #ifdef CONFIG_USB_EHCI_TT_NEWSCHED
@@ -1303,55 +1317,49 @@ sitd_slot_ok (
 	 * tt_available scheduling guarantees 10+% for control/bulk.
 	 */
 	uf = uframe & 7;
-	if (!tt_available(ehci, period_uframes >> 3,
+	if (!tt_available(ehci, stream->ps.bw_period,
 			stream->ps.udev, frame, uf, stream->ps.tt_usecs))
 		return 0;
 #else
 	/* tt must be idle for start(s), any gap, and csplit.
 	 * assume scheduling slop leaves 10+% for control/bulk.
 	 */
-	if (!tt_no_collision(ehci, period_uframes >> 3,
+	if (!tt_no_collision(ehci, stream->ps.bw_period,
 			stream->ps.udev, frame, mask))
 		return 0;
 #endif
 
-	/* this multi-pass logic is simple, but performance may
-	 * suffer when the schedule data isn't cached.
-	 */
 	do {
-		u32		max_used;
-
-		frame = uframe >> 3;
-		uf = uframe & 7;
+		unsigned	max_used;
+		unsigned	i;
 
 		/* check starts (OUT uses more than one) */
+		uf = uframe;
 		max_used = ehci->uframe_periodic_max - stream->ps.usecs;
-		for (tmp = stream->raw_mask & 0xff; tmp; tmp >>= 1, uf++) {
-			if (periodic_usecs (ehci, frame, uf) > max_used)
+		for (tmp = stream->ps.cs_mask & 0xff; tmp; tmp >>= 1, uf++) {
+			if (ehci->bandwidth[uf] > max_used)
 				return 0;
 		}
 
 		/* for IN, check CSPLIT */
 		if (stream->ps.c_usecs) {
-			uf = uframe & 7;
 			max_used = ehci->uframe_periodic_max -
 					stream->ps.c_usecs;
-			do {
-				tmp = 1 << uf;
-				tmp <<= 8;
-				if ((stream->raw_mask & tmp) == 0)
+			uf = uframe & ~7;
+			tmp = 1 << (2+8);
+			for (i = (uframe & 7) + 2; i < 8; (++i, tmp <<= 1)) {
+				if ((stream->ps.cs_mask & tmp) == 0)
 					continue;
-				if (periodic_usecs (ehci, frame, uf)
-						> max_used)
+				if (ehci->bandwidth[uf+i] > max_used)
 					return 0;
-			} while (++uf < 8);
+			}
 		}
 
-		/* we know urb->interval is 2^N uframes */
-		uframe += period_uframes;
-	} while (uframe < mod);
+		uframe += stream->ps.bw_uperiod;
+	} while (uframe < EHCI_BANDWIDTH_SIZE);
 
-	stream->splits = cpu_to_hc32(ehci, stream->raw_mask << (uframe & 7));
+	stream->ps.cs_mask <<= uframe & 7;
+	stream->splits = cpu_to_hc32(ehci, stream->ps.cs_mask);
 	return 1;
 }
 
@@ -1382,12 +1390,10 @@ iso_stream_schedule (
 	struct ehci_iso_sched	*sched = urb->hcpriv;
 	bool			empty = list_empty(&stream->td_list);
 
-	period = urb->interval;
+	period = stream->uperiod;
 	span = sched->span;
-	if (!stream->highspeed) {
-		period <<= 3;
+	if (!stream->highspeed)
 		span <<= 3;
-	}
 
 	now = ehci_read_frame_index(ehci) & (mod - 1);
 
@@ -1404,47 +1410,55 @@ iso_stream_schedule (
 	base = ehci->last_iso_frame << 3;
 	next = (next - base) & (mod - 1);
 
-	/*
-	 * Need to schedule; when's the next (u)frame we could start?
-	 * This is bigger than ehci->i_thresh allows; scheduling itself
-	 * isn't free, the delay should handle reasonably slow cpus.  It
-	 * can also help high bandwidth if the dma and irq loads don't
-	 * jump until after the queue is primed.
-	 */
+	/* Start a new isochronous stream? */
 	if (unlikely(empty && !hcd_periodic_completion_in_progress(
 			ehci_to_hcd(ehci), urb->ep))) {
-		int done = 0;
 
-		start = (now & ~0x07) + SCHEDULING_DELAY;
+		/* Schedule the endpoint */
+		if (stream->ps.phase == NO_FRAME) {
+			int		done = 0;
 
-		/* find a uframe slot with enough bandwidth.
-		 * Early uframes are more precious because full-speed
-		 * iso IN transfers can't use late uframes,
-		 * and therefore they should be allocated last.
-		 */
-		next = start;
-		start += period;
-		do {
-			start--;
-			/* check schedule: enough space? */
-			if (stream->highspeed) {
-				if (itd_slot_ok(ehci, mod, start,
-						stream->ps.usecs, period))
-					done = 1;
-			} else {
-				if ((start % 8) >= 6)
-					continue;
-				if (sitd_slot_ok(ehci, mod, stream,
-						start, sched, period))
-					done = 1;
+			start = (now & ~0x07) + SCHEDULING_DELAY;
+
+			/* find a uframe slot with enough bandwidth.
+			 * Early uframes are more precious because full-speed
+			 * iso IN transfers can't use late uframes,
+			 * and therefore they should be allocated last.
+			 */
+			next = start;
+			start += period;
+			do {
+				start--;
+				/* check schedule: enough space? */
+				if (stream->highspeed) {
+					if (itd_slot_ok(ehci, stream, start))
+						done = 1;
+				} else {
+					if ((start % 8) >= 6)
+						continue;
+					if (sitd_slot_ok(ehci, stream, start,
+							sched))
+						done = 1;
+				}
+			} while (start > next && !done);
+
+			/* no room in the schedule */
+			if (!done) {
+				ehci_dbg(ehci, "iso sched full %p", urb);
+				status = -ENOSPC;
+				goto fail;
 			}
-		} while (start > next && !done);
+			stream->ps.phase = (start >> 3) &
+					(stream->ps.period - 1);
+			stream->ps.bw_phase = stream->ps.phase &
+					(stream->ps.bw_period - 1);
+			stream->ps.phase_uf = start & 7;
+			reserve_release_iso_bandwidth(ehci, stream, 1);
+		}
 
-		/* no room in the schedule */
-		if (!done) {
-			ehci_dbg(ehci, "iso sched full %p", urb);
-			status = -ENOSPC;
-			goto fail;
+		/* New stream is already scheduled; use the upcoming slot */
+		else {
+			start = (stream->ps.phase << 3) + stream->ps.phase_uf;
 		}
 
 		start = (start - base) & (mod - 1);
@@ -1452,7 +1466,7 @@ iso_stream_schedule (
 	}
 
 	/*
-	 * Typical case: reuse current schedule, stream is still active.
+	 * Typical case: reuse current schedule, stream may still be active.
 	 * Hopefully there are no gaps from the host falling behind
 	 * (irq delays etc).  If there are, the behavior depends on
 	 * whether URB_ISO_ASAP is set.
diff --git a/drivers/usb/host/ehci-sysfs.c b/drivers/usb/host/ehci-sysfs.c
index 14ced00ba220..f6459dfb6f54 100644
--- a/drivers/usb/host/ehci-sysfs.c
+++ b/drivers/usb/host/ehci-sysfs.c
@@ -97,8 +97,7 @@ static ssize_t store_uframe_periodic_max(struct device *dev,
 {
 	struct ehci_hcd		*ehci;
 	unsigned		uframe_periodic_max;
-	unsigned		frame, uframe;
-	unsigned short		allocated_max;
+	unsigned		uframe;
 	unsigned long		flags;
 	ssize_t			ret;
 
@@ -122,16 +121,14 @@ static ssize_t store_uframe_periodic_max(struct device *dev,
 
 	/*
 	 * for request to decrease max periodic bandwidth, we have to check
-	 * every microframe in the schedule to see whether the decrease is
-	 * possible.
+	 * to see whether the decrease is possible.
 	 */
 	if (uframe_periodic_max < ehci->uframe_periodic_max) {
-		allocated_max = 0;
+		u8		allocated_max = 0;
 
-		for (frame = 0; frame < ehci->periodic_size; ++frame)
-			for (uframe = 0; uframe < 7; ++uframe)
-				allocated_max = max(allocated_max,
-						    periodic_usecs (ehci, frame, uframe));
+		for (uframe = 0; uframe < EHCI_BANDWIDTH_SIZE; ++uframe)
+			allocated_max = max(allocated_max,
+					ehci->bandwidth[uframe]);
 
 		if (allocated_max > uframe_periodic_max) {
 			ehci_info(ehci,
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index e2b64c40d94f..12504fbded56 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -62,10 +62,16 @@ struct ehci_per_sched {
 	struct usb_device	*udev;		/* access to the TT */
 	struct usb_host_endpoint *ep;
 	u16			tt_usecs;	/* time on the FS/LS bus */
+	u16			cs_mask;	/* C-mask and S-mask bytes */
 	u16			period;		/* actual period in frames */
 	u16			phase;		/* actual phase, frame part */
+	u8			bw_phase;	/* same, for bandwidth
+						   reservation */
 	u8			phase_uf;	/* uframe part of the phase */
 	u8			usecs, c_usecs;	/* times on the HS bus */
+	u8			bw_uperiod;	/* period in microframes, for
+						   bandwidth reservation */
+	u8			bw_period;	/* same, in frames */
 };
 #define NO_FRAME	29999			/* frame not assigned yet */
 
@@ -245,6 +251,12 @@ struct ehci_hcd {			/* one per controller */
 	struct dentry		*debug_dir;
 #endif
 
+	/* bandwidth usage */
+#define EHCI_BANDWIDTH_SIZE	64
+#define EHCI_BANDWIDTH_FRAMES	(EHCI_BANDWIDTH_SIZE >> 3)
+	u8			bandwidth[EHCI_BANDWIDTH_SIZE];
+						/* us allocated per uframe */
+
 	/* platform-specific data -- must come last */
 	unsigned long		priv[0] __aligned(sizeof(s64));
 };
@@ -469,7 +481,6 @@ struct ehci_iso_stream {
 	 */
 	u16			uperiod;	/* period in uframes */
 	u16			maxp;
-	u16			raw_mask;
 	unsigned		bandwidth;
 
 	/* This is used to initialize iTD's hw_bufp fields */
-- 
cgit 


From 7c4bb942986fc2aa7ca4fccfed665d24525a0e21 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 11 Oct 2013 11:29:22 -0400
Subject: USB: add a private-data pointer to struct usb_tt

For improved scheduling of transfers through a Transaction Translator,
ehci-hcd will need to store a bunch of information associated with the
FS/LS bus on the downstream side of the TT.  This patch adds a pointer
for such HCD-private data to the usb_tt structure.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/usb/hcd.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index dbe3cd19ffd8..b8aba196f7f1 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -506,6 +506,7 @@ struct usb_tt {
 	struct usb_device	*hub;	/* upstream highspeed hub */
 	int			multi;	/* true means one TT per port */
 	unsigned		think_time;	/* think time in ns */
+	void			*hcpriv;	/* HCD private data */
 
 	/* for control/bulk error recovery (CLEAR_TT_BUFFER) */
 	spinlock_t		lock;
-- 
cgit 


From a4b3f029c90c45e0e2dd961abdaff70b86dd7efa Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 10 Oct 2013 16:40:58 +0900
Subject: ARM: SAMSUNG: Remove unused s5p_device_ehci

Since commit ca91435 "ARM: EXYNOS: Remove unused board files",
s5p_device_ehci is not used anymore. Thus, s5p_device_ehci can
be removed. Also, unnecessary S5P_DEV_USB_EHCI option is removed.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/plat-samsung/Kconfig             |  5 -----
 arch/arm/plat-samsung/devs.c              | 34 -------------------------------
 arch/arm/plat-samsung/include/plat/devs.h |  1 -
 3 files changed, 40 deletions(-)

diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index 7dfba937d8fc..99bfbb388e32 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -382,11 +382,6 @@ config S5P_DEV_TV
 	help
 	  Compile in platform device definition for TV interface
 
-config S5P_DEV_USB_EHCI
-	bool
-	help
-	  Compile in platform device definition for USB EHCI
-
 config S3C24XX_PWM
 	bool "PWM device support"
 	select PWM
diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c
index 8ce0ac007eb9..25f40c9b7f62 100644
--- a/arch/arm/plat-samsung/devs.c
+++ b/arch/arm/plat-samsung/devs.c
@@ -49,7 +49,6 @@
 #include <plat/devs.h>
 #include <plat/adc.h>
 #include <linux/platform_data/ata-samsung_cf.h>
-#include <linux/platform_data/usb-ehci-s5p.h>
 #include <plat/fb.h>
 #include <plat/fb-s3c2410.h>
 #include <plat/hdmi.h>
@@ -1359,39 +1358,6 @@ void __init s3c24xx_udc_set_platdata(struct s3c2410_udc_mach_info *pd)
 }
 #endif /* CONFIG_PLAT_S3C24XX */
 
-/* USB EHCI Host Controller */
-
-#ifdef CONFIG_S5P_DEV_USB_EHCI
-static struct resource s5p_ehci_resource[] = {
-	[0] = DEFINE_RES_MEM(S5P_PA_EHCI, SZ_256),
-	[1] = DEFINE_RES_IRQ(IRQ_USB_HOST),
-};
-
-struct platform_device s5p_device_ehci = {
-	.name		= "s5p-ehci",
-	.id		= -1,
-	.num_resources	= ARRAY_SIZE(s5p_ehci_resource),
-	.resource	= s5p_ehci_resource,
-	.dev		= {
-		.dma_mask		= &samsung_device_dma_mask,
-		.coherent_dma_mask	= DMA_BIT_MASK(32),
-	}
-};
-
-void __init s5p_ehci_set_platdata(struct s5p_ehci_platdata *pd)
-{
-	struct s5p_ehci_platdata *npd;
-
-	npd = s3c_set_platdata(pd, sizeof(struct s5p_ehci_platdata),
-			&s5p_device_ehci);
-
-	if (!npd->phy_init)
-		npd->phy_init = s5p_usb_phy_init;
-	if (!npd->phy_exit)
-		npd->phy_exit = s5p_usb_phy_exit;
-}
-#endif /* CONFIG_S5P_DEV_USB_EHCI */
-
 /* USB HSOTG */
 
 #ifdef CONFIG_S3C_DEV_USB_HSOTG
diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h
index 0dc4ac4909b0..eece188ed188 100644
--- a/arch/arm/plat-samsung/include/plat/devs.h
+++ b/arch/arm/plat-samsung/include/plat/devs.h
@@ -75,7 +75,6 @@ extern struct platform_device s3c_device_usb_hsotg;
 extern struct platform_device s3c_device_usb_hsudc;
 extern struct platform_device s3c_device_wdt;
 
-extern struct platform_device s5p_device_ehci;
 extern struct platform_device s5p_device_fimc0;
 extern struct platform_device s5p_device_fimc1;
 extern struct platform_device s5p_device_fimc2;
-- 
cgit 


From 57ae1605c0f511bca212787d28d79a3f82c0a7f9 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 10 Oct 2013 16:41:19 +0900
Subject: USB: ehci-s5p: Remove non-DT support

The non-DT for EXYNOS SoCs is not supported from v3.11.
Thus, there is no need to support non-DT for Exynos EHCI driver.

The 'include/linux/platform_data/usb-ehci-s5p.h' file has been
used for non-DT support. Thus, the 'usb-ehci-s5p.h' file can
be removed.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-s5p.c                | 32 ++++--------------------------
 include/linux/platform_data/usb-ehci-s5p.h | 21 --------------------
 2 files changed, 4 insertions(+), 49 deletions(-)
 delete mode 100644 include/linux/platform_data/usb-ehci-s5p.h

diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c
index 7c3de95c7054..45e1ad3f56b2 100644
--- a/drivers/usb/host/ehci-s5p.c
+++ b/drivers/usb/host/ehci-s5p.c
@@ -20,7 +20,6 @@
 #include <linux/of.h>
 #include <linux/of_gpio.h>
 #include <linux/platform_device.h>
-#include <linux/platform_data/usb-ehci-s5p.h>
 #include <linux/usb/phy.h>
 #include <linux/usb/samsung_usb_phy.h>
 #include <linux/usb.h>
@@ -47,11 +46,8 @@ struct s5p_ehci_hcd {
 	struct clk *clk;
 	struct usb_phy *phy;
 	struct usb_otg *otg;
-	struct s5p_ehci_platdata *pdata;
 };
 
-static struct s5p_ehci_platdata empty_platdata;
-
 #define to_s5p_ehci(hcd)      (struct s5p_ehci_hcd *)(hcd_to_ehci(hcd)->priv)
 
 static void s5p_setup_vbus_gpio(struct platform_device *pdev)
@@ -75,7 +71,6 @@ static void s5p_setup_vbus_gpio(struct platform_device *pdev)
 
 static int s5p_ehci_probe(struct platform_device *pdev)
 {
-	struct s5p_ehci_platdata *pdata = dev_get_platdata(&pdev->dev);
 	struct s5p_ehci_hcd *s5p_ehci;
 	struct usb_hcd *hcd;
 	struct ehci_hcd *ehci;
@@ -105,21 +100,14 @@ static int s5p_ehci_probe(struct platform_device *pdev)
 	s5p_ehci = to_s5p_ehci(hcd);
 
 	if (of_device_is_compatible(pdev->dev.of_node,
-					"samsung,exynos5440-ehci")) {
-		s5p_ehci->pdata = &empty_platdata;
+					"samsung,exynos5440-ehci"))
 		goto skip_phy;
-	}
 
 	phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
 	if (IS_ERR(phy)) {
-		/* Fallback to pdata */
-		if (!pdata) {
-			usb_put_hcd(hcd);
-			dev_warn(&pdev->dev, "no platform data or transceiver defined\n");
-			return -EPROBE_DEFER;
-		} else {
-			s5p_ehci->pdata = pdata;
-		}
+		usb_put_hcd(hcd);
+		dev_warn(&pdev->dev, "no platform data or transceiver defined\n");
+		return -EPROBE_DEFER;
 	} else {
 		s5p_ehci->phy = phy;
 		s5p_ehci->otg = phy->otg;
@@ -167,8 +155,6 @@ skip_phy:
 
 	if (s5p_ehci->phy)
 		usb_phy_init(s5p_ehci->phy);
-	else if (s5p_ehci->pdata->phy_init)
-		s5p_ehci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST);
 
 	ehci = hcd_to_ehci(hcd);
 	ehci->caps = hcd->regs;
@@ -189,8 +175,6 @@ skip_phy:
 fail_add_hcd:
 	if (s5p_ehci->phy)
 		usb_phy_shutdown(s5p_ehci->phy);
-	else if (s5p_ehci->pdata->phy_exit)
-		s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
 fail_io:
 	clk_disable_unprepare(s5p_ehci->clk);
 fail_clk:
@@ -210,8 +194,6 @@ static int s5p_ehci_remove(struct platform_device *pdev)
 
 	if (s5p_ehci->phy)
 		usb_phy_shutdown(s5p_ehci->phy);
-	else if (s5p_ehci->pdata->phy_exit)
-		s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
 
 	clk_disable_unprepare(s5p_ehci->clk);
 
@@ -225,7 +207,6 @@ static int s5p_ehci_suspend(struct device *dev)
 {
 	struct usb_hcd *hcd = dev_get_drvdata(dev);
 	struct s5p_ehci_hcd *s5p_ehci = to_s5p_ehci(hcd);
-	struct platform_device *pdev = to_platform_device(dev);
 
 	bool do_wakeup = device_may_wakeup(dev);
 	int rc;
@@ -237,8 +218,6 @@ static int s5p_ehci_suspend(struct device *dev)
 
 	if (s5p_ehci->phy)
 		usb_phy_shutdown(s5p_ehci->phy);
-	else if (s5p_ehci->pdata->phy_exit)
-		s5p_ehci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
 
 	clk_disable_unprepare(s5p_ehci->clk);
 
@@ -249,7 +228,6 @@ static int s5p_ehci_resume(struct device *dev)
 {
 	struct usb_hcd *hcd = dev_get_drvdata(dev);
 	struct  s5p_ehci_hcd *s5p_ehci = to_s5p_ehci(hcd);
-	struct platform_device *pdev = to_platform_device(dev);
 
 	clk_prepare_enable(s5p_ehci->clk);
 
@@ -258,8 +236,6 @@ static int s5p_ehci_resume(struct device *dev)
 
 	if (s5p_ehci->phy)
 		usb_phy_init(s5p_ehci->phy);
-	else if (s5p_ehci->pdata->phy_init)
-		s5p_ehci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST);
 
 	/* DMA burst Enable */
 	writel(EHCI_INSNREG00_ENABLE_DMA_BURST, EHCI_INSNREG00(hcd->regs));
diff --git a/include/linux/platform_data/usb-ehci-s5p.h b/include/linux/platform_data/usb-ehci-s5p.h
deleted file mode 100644
index 5f28cae18582..000000000000
--- a/include/linux/platform_data/usb-ehci-s5p.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (C) 2011 Samsung Electronics Co.Ltd
- * Author: Joonyoung Shim <jy0922.shim@samsung.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- */
-
-#ifndef __PLAT_SAMSUNG_EHCI_H
-#define __PLAT_SAMSUNG_EHCI_H __FILE__
-
-struct s5p_ehci_platdata {
-	int (*phy_init)(struct platform_device *pdev, int type);
-	int (*phy_exit)(struct platform_device *pdev, int type);
-};
-
-extern void s5p_ehci_set_platdata(struct s5p_ehci_platdata *pd);
-
-#endif /* __PLAT_SAMSUNG_EHCI_H */
-- 
cgit 


From 29824c167bead38986d5e8d33008680c62478777 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 10 Oct 2013 16:42:47 +0900
Subject: USB: host: Rename ehci-s5p to ehci-exynos

Currently, Samsung is using 'EXYNOS' as the name of Samsung SoCs.
Thus, ehci-exynos is preferred than ehci-s5p.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/Kconfig       |   5 +-
 drivers/usb/host/Makefile      |   2 +-
 drivers/usb/host/ehci-exynos.c | 301 +++++++++++++++++++++++++++++++++++++++++
 drivers/usb/host/ehci-s5p.c    | 301 -----------------------------------------
 4 files changed, 304 insertions(+), 305 deletions(-)
 create mode 100644 drivers/usb/host/ehci-exynos.c
 delete mode 100644 drivers/usb/host/ehci-s5p.c

diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 70cb1a94beff..80e72fba01f4 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -203,12 +203,11 @@ config USB_EHCI_SH
 	  Enables support for the on-chip EHCI controller on the SuperH.
 	  If you use the PCI EHCI controller, this option is not necessary.
 
-config USB_EHCI_S5P
+config USB_EHCI_EXYNOS
        tristate "EHCI support for Samsung S5P/EXYNOS SoC Series"
        depends on PLAT_S5P || ARCH_EXYNOS
        help
-	Enable support for the Samsung S5Pxxxx and Exynos3/4/5 SOC's
-	on-chip EHCI controller.
+	Enable support for the Samsung Exynos SOC's on-chip EHCI controller.
 
 config USB_EHCI_MV
 	bool "EHCI support for Marvell PXA/MMP USB controller"
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 0b9fdeecf683..9dc11c2ee454 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -34,7 +34,7 @@ obj-$(CONFIG_USB_EHCI_MXC)	+= ehci-mxc.o
 obj-$(CONFIG_USB_EHCI_HCD_OMAP)	+= ehci-omap.o
 obj-$(CONFIG_USB_EHCI_HCD_ORION)	+= ehci-orion.o
 obj-$(CONFIG_USB_EHCI_HCD_SPEAR)	+= ehci-spear.o
-obj-$(CONFIG_USB_EHCI_S5P)	+= ehci-s5p.o
+obj-$(CONFIG_USB_EHCI_EXYNOS)	+= ehci-exynos.o
 obj-$(CONFIG_USB_EHCI_HCD_AT91) += ehci-atmel.o
 obj-$(CONFIG_USB_EHCI_MSM)	+= ehci-msm.o
 obj-$(CONFIG_USB_EHCI_TEGRA)	+= ehci-tegra.o
diff --git a/drivers/usb/host/ehci-exynos.c b/drivers/usb/host/ehci-exynos.c
new file mode 100644
index 000000000000..016352e0f5a7
--- /dev/null
+++ b/drivers/usb/host/ehci-exynos.c
@@ -0,0 +1,301 @@
+/*
+ * SAMSUNG EXYNOS USB HOST EHCI Controller
+ *
+ * Copyright (C) 2011 Samsung Electronics Co.Ltd
+ * Author: Jingoo Han <jg1.han@samsung.com>
+ * Author: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/platform_device.h>
+#include <linux/usb/phy.h>
+#include <linux/usb/samsung_usb_phy.h>
+#include <linux/usb.h>
+#include <linux/usb/hcd.h>
+#include <linux/usb/otg.h>
+
+#include "ehci.h"
+
+#define DRIVER_DESC "EHCI EXYNOS driver"
+
+#define EHCI_INSNREG00(base)			(base + 0x90)
+#define EHCI_INSNREG00_ENA_INCR16		(0x1 << 25)
+#define EHCI_INSNREG00_ENA_INCR8		(0x1 << 24)
+#define EHCI_INSNREG00_ENA_INCR4		(0x1 << 23)
+#define EHCI_INSNREG00_ENA_INCRX_ALIGN		(0x1 << 22)
+#define EHCI_INSNREG00_ENABLE_DMA_BURST	\
+	(EHCI_INSNREG00_ENA_INCR16 | EHCI_INSNREG00_ENA_INCR8 |	\
+	 EHCI_INSNREG00_ENA_INCR4 | EHCI_INSNREG00_ENA_INCRX_ALIGN)
+
+static const char hcd_name[] = "ehci-exynos";
+static struct hc_driver __read_mostly exynos_ehci_hc_driver;
+
+struct exynos_ehci_hcd {
+	struct clk *clk;
+	struct usb_phy *phy;
+	struct usb_otg *otg;
+};
+
+#define to_exynos_ehci(hcd) (struct exynos_ehci_hcd *)(hcd_to_ehci(hcd)->priv)
+
+static void exynos_setup_vbus_gpio(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	int err;
+	int gpio;
+
+	if (!dev->of_node)
+		return;
+
+	gpio = of_get_named_gpio(dev->of_node, "samsung,vbus-gpio", 0);
+	if (!gpio_is_valid(gpio))
+		return;
+
+	err = devm_gpio_request_one(dev, gpio, GPIOF_OUT_INIT_HIGH,
+				    "ehci_vbus_gpio");
+	if (err)
+		dev_err(dev, "can't request ehci vbus gpio %d", gpio);
+}
+
+static int exynos_ehci_probe(struct platform_device *pdev)
+{
+	struct exynos_ehci_hcd *exynos_ehci;
+	struct usb_hcd *hcd;
+	struct ehci_hcd *ehci;
+	struct resource *res;
+	struct usb_phy *phy;
+	int irq;
+	int err;
+
+	/*
+	 * Right now device-tree probed devices don't get dma_mask set.
+	 * Since shared usb code relies on it, set it here for now.
+	 * Once we move to full device tree support this will vanish off.
+	 */
+	if (!pdev->dev.dma_mask)
+		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+	if (!pdev->dev.coherent_dma_mask)
+		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+
+	exynos_setup_vbus_gpio(pdev);
+
+	hcd = usb_create_hcd(&exynos_ehci_hc_driver,
+			     &pdev->dev, dev_name(&pdev->dev));
+	if (!hcd) {
+		dev_err(&pdev->dev, "Unable to create HCD\n");
+		return -ENOMEM;
+	}
+	exynos_ehci = to_exynos_ehci(hcd);
+
+	if (of_device_is_compatible(pdev->dev.of_node,
+					"samsung,exynos5440-ehci"))
+		goto skip_phy;
+
+	phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
+	if (IS_ERR(phy)) {
+		usb_put_hcd(hcd);
+		dev_warn(&pdev->dev, "no platform data or transceiver defined\n");
+		return -EPROBE_DEFER;
+	} else {
+		exynos_ehci->phy = phy;
+		exynos_ehci->otg = phy->otg;
+	}
+
+skip_phy:
+
+	exynos_ehci->clk = devm_clk_get(&pdev->dev, "usbhost");
+
+	if (IS_ERR(exynos_ehci->clk)) {
+		dev_err(&pdev->dev, "Failed to get usbhost clock\n");
+		err = PTR_ERR(exynos_ehci->clk);
+		goto fail_clk;
+	}
+
+	err = clk_prepare_enable(exynos_ehci->clk);
+	if (err)
+		goto fail_clk;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "Failed to get I/O memory\n");
+		err = -ENXIO;
+		goto fail_io;
+	}
+
+	hcd->rsrc_start = res->start;
+	hcd->rsrc_len = resource_size(res);
+	hcd->regs = devm_ioremap(&pdev->dev, res->start, hcd->rsrc_len);
+	if (!hcd->regs) {
+		dev_err(&pdev->dev, "Failed to remap I/O memory\n");
+		err = -ENOMEM;
+		goto fail_io;
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	if (!irq) {
+		dev_err(&pdev->dev, "Failed to get IRQ\n");
+		err = -ENODEV;
+		goto fail_io;
+	}
+
+	if (exynos_ehci->otg)
+		exynos_ehci->otg->set_host(exynos_ehci->otg, &hcd->self);
+
+	if (exynos_ehci->phy)
+		usb_phy_init(exynos_ehci->phy);
+
+	ehci = hcd_to_ehci(hcd);
+	ehci->caps = hcd->regs;
+
+	/* DMA burst Enable */
+	writel(EHCI_INSNREG00_ENABLE_DMA_BURST, EHCI_INSNREG00(hcd->regs));
+
+	err = usb_add_hcd(hcd, irq, IRQF_SHARED);
+	if (err) {
+		dev_err(&pdev->dev, "Failed to add USB HCD\n");
+		goto fail_add_hcd;
+	}
+
+	platform_set_drvdata(pdev, hcd);
+
+	return 0;
+
+fail_add_hcd:
+	if (exynos_ehci->phy)
+		usb_phy_shutdown(exynos_ehci->phy);
+fail_io:
+	clk_disable_unprepare(exynos_ehci->clk);
+fail_clk:
+	usb_put_hcd(hcd);
+	return err;
+}
+
+static int exynos_ehci_remove(struct platform_device *pdev)
+{
+	struct usb_hcd *hcd = platform_get_drvdata(pdev);
+	struct exynos_ehci_hcd *exynos_ehci = to_exynos_ehci(hcd);
+
+	usb_remove_hcd(hcd);
+
+	if (exynos_ehci->otg)
+		exynos_ehci->otg->set_host(exynos_ehci->otg, &hcd->self);
+
+	if (exynos_ehci->phy)
+		usb_phy_shutdown(exynos_ehci->phy);
+
+	clk_disable_unprepare(exynos_ehci->clk);
+
+	usb_put_hcd(hcd);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM
+static int exynos_ehci_suspend(struct device *dev)
+{
+	struct usb_hcd *hcd = dev_get_drvdata(dev);
+	struct exynos_ehci_hcd *exynos_ehci = to_exynos_ehci(hcd);
+
+	bool do_wakeup = device_may_wakeup(dev);
+	int rc;
+
+	rc = ehci_suspend(hcd, do_wakeup);
+
+	if (exynos_ehci->otg)
+		exynos_ehci->otg->set_host(exynos_ehci->otg, &hcd->self);
+
+	if (exynos_ehci->phy)
+		usb_phy_shutdown(exynos_ehci->phy);
+
+	clk_disable_unprepare(exynos_ehci->clk);
+
+	return rc;
+}
+
+static int exynos_ehci_resume(struct device *dev)
+{
+	struct usb_hcd *hcd = dev_get_drvdata(dev);
+	struct exynos_ehci_hcd *exynos_ehci = to_exynos_ehci(hcd);
+
+	clk_prepare_enable(exynos_ehci->clk);
+
+	if (exynos_ehci->otg)
+		exynos_ehci->otg->set_host(exynos_ehci->otg, &hcd->self);
+
+	if (exynos_ehci->phy)
+		usb_phy_init(exynos_ehci->phy);
+
+	/* DMA burst Enable */
+	writel(EHCI_INSNREG00_ENABLE_DMA_BURST, EHCI_INSNREG00(hcd->regs));
+
+	ehci_resume(hcd, false);
+	return 0;
+}
+#else
+#define exynos_ehci_suspend	NULL
+#define exynos_ehci_resume	NULL
+#endif
+
+static const struct dev_pm_ops exynos_ehci_pm_ops = {
+	.suspend	= exynos_ehci_suspend,
+	.resume		= exynos_ehci_resume,
+};
+
+#ifdef CONFIG_OF
+static const struct of_device_id exynos_ehci_match[] = {
+	{ .compatible = "samsung,exynos4210-ehci" },
+	{ .compatible = "samsung,exynos5440-ehci" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, exynos_ehci_match);
+#endif
+
+static struct platform_driver exynos_ehci_driver = {
+	.probe		= exynos_ehci_probe,
+	.remove		= exynos_ehci_remove,
+	.shutdown	= usb_hcd_platform_shutdown,
+	.driver = {
+		.name	= "exynos-ehci",
+		.owner	= THIS_MODULE,
+		.pm	= &exynos_ehci_pm_ops,
+		.of_match_table = of_match_ptr(exynos_ehci_match),
+	}
+};
+static const struct ehci_driver_overrides exynos_overrides __initdata = {
+	.extra_priv_size = sizeof(struct exynos_ehci_hcd),
+};
+
+static int __init ehci_exynos_init(void)
+{
+	if (usb_disabled())
+		return -ENODEV;
+
+	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
+	ehci_init_driver(&exynos_ehci_hc_driver, &exynos_overrides);
+	return platform_driver_register(&exynos_ehci_driver);
+}
+module_init(ehci_exynos_init);
+
+static void __exit ehci_exynos_cleanup(void)
+{
+	platform_driver_unregister(&exynos_ehci_driver);
+}
+module_exit(ehci_exynos_cleanup);
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_ALIAS("platform:exynos-ehci");
+MODULE_AUTHOR("Jingoo Han");
+MODULE_AUTHOR("Joonyoung Shim");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c
deleted file mode 100644
index 45e1ad3f56b2..000000000000
--- a/drivers/usb/host/ehci-s5p.c
+++ /dev/null
@@ -1,301 +0,0 @@
-/*
- * SAMSUNG S5P USB HOST EHCI Controller
- *
- * Copyright (C) 2011 Samsung Electronics Co.Ltd
- * Author: Jingoo Han <jg1.han@samsung.com>
- * Author: Joonyoung Shim <jy0922.shim@samsung.com>
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- *
- */
-
-#include <linux/clk.h>
-#include <linux/dma-mapping.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_gpio.h>
-#include <linux/platform_device.h>
-#include <linux/usb/phy.h>
-#include <linux/usb/samsung_usb_phy.h>
-#include <linux/usb.h>
-#include <linux/usb/hcd.h>
-#include <linux/usb/otg.h>
-
-#include "ehci.h"
-
-#define DRIVER_DESC "EHCI s5p driver"
-
-#define EHCI_INSNREG00(base)			(base + 0x90)
-#define EHCI_INSNREG00_ENA_INCR16		(0x1 << 25)
-#define EHCI_INSNREG00_ENA_INCR8		(0x1 << 24)
-#define EHCI_INSNREG00_ENA_INCR4		(0x1 << 23)
-#define EHCI_INSNREG00_ENA_INCRX_ALIGN		(0x1 << 22)
-#define EHCI_INSNREG00_ENABLE_DMA_BURST	\
-	(EHCI_INSNREG00_ENA_INCR16 | EHCI_INSNREG00_ENA_INCR8 |	\
-	 EHCI_INSNREG00_ENA_INCR4 | EHCI_INSNREG00_ENA_INCRX_ALIGN)
-
-static const char hcd_name[] = "ehci-s5p";
-static struct hc_driver __read_mostly s5p_ehci_hc_driver;
-
-struct s5p_ehci_hcd {
-	struct clk *clk;
-	struct usb_phy *phy;
-	struct usb_otg *otg;
-};
-
-#define to_s5p_ehci(hcd)      (struct s5p_ehci_hcd *)(hcd_to_ehci(hcd)->priv)
-
-static void s5p_setup_vbus_gpio(struct platform_device *pdev)
-{
-	struct device *dev = &pdev->dev;
-	int err;
-	int gpio;
-
-	if (!dev->of_node)
-		return;
-
-	gpio = of_get_named_gpio(dev->of_node, "samsung,vbus-gpio", 0);
-	if (!gpio_is_valid(gpio))
-		return;
-
-	err = devm_gpio_request_one(dev, gpio, GPIOF_OUT_INIT_HIGH,
-				    "ehci_vbus_gpio");
-	if (err)
-		dev_err(dev, "can't request ehci vbus gpio %d", gpio);
-}
-
-static int s5p_ehci_probe(struct platform_device *pdev)
-{
-	struct s5p_ehci_hcd *s5p_ehci;
-	struct usb_hcd *hcd;
-	struct ehci_hcd *ehci;
-	struct resource *res;
-	struct usb_phy *phy;
-	int irq;
-	int err;
-
-	/*
-	 * Right now device-tree probed devices don't get dma_mask set.
-	 * Since shared usb code relies on it, set it here for now.
-	 * Once we move to full device tree support this will vanish off.
-	 */
-	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	if (!pdev->dev.coherent_dma_mask)
-		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
-
-	s5p_setup_vbus_gpio(pdev);
-
-	hcd = usb_create_hcd(&s5p_ehci_hc_driver,
-			     &pdev->dev, dev_name(&pdev->dev));
-	if (!hcd) {
-		dev_err(&pdev->dev, "Unable to create HCD\n");
-		return -ENOMEM;
-	}
-	s5p_ehci = to_s5p_ehci(hcd);
-
-	if (of_device_is_compatible(pdev->dev.of_node,
-					"samsung,exynos5440-ehci"))
-		goto skip_phy;
-
-	phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
-	if (IS_ERR(phy)) {
-		usb_put_hcd(hcd);
-		dev_warn(&pdev->dev, "no platform data or transceiver defined\n");
-		return -EPROBE_DEFER;
-	} else {
-		s5p_ehci->phy = phy;
-		s5p_ehci->otg = phy->otg;
-	}
-
-skip_phy:
-
-	s5p_ehci->clk = devm_clk_get(&pdev->dev, "usbhost");
-
-	if (IS_ERR(s5p_ehci->clk)) {
-		dev_err(&pdev->dev, "Failed to get usbhost clock\n");
-		err = PTR_ERR(s5p_ehci->clk);
-		goto fail_clk;
-	}
-
-	err = clk_prepare_enable(s5p_ehci->clk);
-	if (err)
-		goto fail_clk;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "Failed to get I/O memory\n");
-		err = -ENXIO;
-		goto fail_io;
-	}
-
-	hcd->rsrc_start = res->start;
-	hcd->rsrc_len = resource_size(res);
-	hcd->regs = devm_ioremap(&pdev->dev, res->start, hcd->rsrc_len);
-	if (!hcd->regs) {
-		dev_err(&pdev->dev, "Failed to remap I/O memory\n");
-		err = -ENOMEM;
-		goto fail_io;
-	}
-
-	irq = platform_get_irq(pdev, 0);
-	if (!irq) {
-		dev_err(&pdev->dev, "Failed to get IRQ\n");
-		err = -ENODEV;
-		goto fail_io;
-	}
-
-	if (s5p_ehci->otg)
-		s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
-
-	if (s5p_ehci->phy)
-		usb_phy_init(s5p_ehci->phy);
-
-	ehci = hcd_to_ehci(hcd);
-	ehci->caps = hcd->regs;
-
-	/* DMA burst Enable */
-	writel(EHCI_INSNREG00_ENABLE_DMA_BURST, EHCI_INSNREG00(hcd->regs));
-
-	err = usb_add_hcd(hcd, irq, IRQF_SHARED);
-	if (err) {
-		dev_err(&pdev->dev, "Failed to add USB HCD\n");
-		goto fail_add_hcd;
-	}
-
-	platform_set_drvdata(pdev, hcd);
-
-	return 0;
-
-fail_add_hcd:
-	if (s5p_ehci->phy)
-		usb_phy_shutdown(s5p_ehci->phy);
-fail_io:
-	clk_disable_unprepare(s5p_ehci->clk);
-fail_clk:
-	usb_put_hcd(hcd);
-	return err;
-}
-
-static int s5p_ehci_remove(struct platform_device *pdev)
-{
-	struct usb_hcd *hcd = platform_get_drvdata(pdev);
-	struct s5p_ehci_hcd *s5p_ehci = to_s5p_ehci(hcd);
-
-	usb_remove_hcd(hcd);
-
-	if (s5p_ehci->otg)
-		s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
-
-	if (s5p_ehci->phy)
-		usb_phy_shutdown(s5p_ehci->phy);
-
-	clk_disable_unprepare(s5p_ehci->clk);
-
-	usb_put_hcd(hcd);
-
-	return 0;
-}
-
-#ifdef CONFIG_PM
-static int s5p_ehci_suspend(struct device *dev)
-{
-	struct usb_hcd *hcd = dev_get_drvdata(dev);
-	struct s5p_ehci_hcd *s5p_ehci = to_s5p_ehci(hcd);
-
-	bool do_wakeup = device_may_wakeup(dev);
-	int rc;
-
-	rc = ehci_suspend(hcd, do_wakeup);
-
-	if (s5p_ehci->otg)
-		s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
-
-	if (s5p_ehci->phy)
-		usb_phy_shutdown(s5p_ehci->phy);
-
-	clk_disable_unprepare(s5p_ehci->clk);
-
-	return rc;
-}
-
-static int s5p_ehci_resume(struct device *dev)
-{
-	struct usb_hcd *hcd = dev_get_drvdata(dev);
-	struct  s5p_ehci_hcd *s5p_ehci = to_s5p_ehci(hcd);
-
-	clk_prepare_enable(s5p_ehci->clk);
-
-	if (s5p_ehci->otg)
-		s5p_ehci->otg->set_host(s5p_ehci->otg, &hcd->self);
-
-	if (s5p_ehci->phy)
-		usb_phy_init(s5p_ehci->phy);
-
-	/* DMA burst Enable */
-	writel(EHCI_INSNREG00_ENABLE_DMA_BURST, EHCI_INSNREG00(hcd->regs));
-
-	ehci_resume(hcd, false);
-	return 0;
-}
-#else
-#define s5p_ehci_suspend	NULL
-#define s5p_ehci_resume		NULL
-#endif
-
-static const struct dev_pm_ops s5p_ehci_pm_ops = {
-	.suspend	= s5p_ehci_suspend,
-	.resume		= s5p_ehci_resume,
-};
-
-#ifdef CONFIG_OF
-static const struct of_device_id exynos_ehci_match[] = {
-	{ .compatible = "samsung,exynos4210-ehci" },
-	{ .compatible = "samsung,exynos5440-ehci" },
-	{},
-};
-MODULE_DEVICE_TABLE(of, exynos_ehci_match);
-#endif
-
-static struct platform_driver s5p_ehci_driver = {
-	.probe		= s5p_ehci_probe,
-	.remove		= s5p_ehci_remove,
-	.shutdown	= usb_hcd_platform_shutdown,
-	.driver = {
-		.name	= "s5p-ehci",
-		.owner	= THIS_MODULE,
-		.pm	= &s5p_ehci_pm_ops,
-		.of_match_table = of_match_ptr(exynos_ehci_match),
-	}
-};
-static const struct ehci_driver_overrides s5p_overrides __initdata = {
-	.extra_priv_size = sizeof(struct s5p_ehci_hcd),
-};
-
-static int __init ehci_s5p_init(void)
-{
-	if (usb_disabled())
-		return -ENODEV;
-
-	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
-	ehci_init_driver(&s5p_ehci_hc_driver, &s5p_overrides);
-	return platform_driver_register(&s5p_ehci_driver);
-}
-module_init(ehci_s5p_init);
-
-static void __exit ehci_s5p_cleanup(void)
-{
-	platform_driver_unregister(&s5p_ehci_driver);
-}
-module_exit(ehci_s5p_cleanup);
-
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_ALIAS("platform:s5p-ehci");
-MODULE_AUTHOR("Jingoo Han");
-MODULE_AUTHOR("Joonyoung Shim");
-MODULE_LICENSE("GPL v2");
-- 
cgit 


From 059239adfe577866115cd5270eba40e3cac33f8a Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Sat, 5 Oct 2013 23:09:15 +0200
Subject: drivers: usb: core: hcd.c: converted busmap from struct to bitmap

The DECLARE_BITMAP macro should be used for declaring this bitmap.
This commit converts the busmap from a struct to a simple (static)
bitmap, using the DECLARE_BITMAP macro from linux/types.h.

Please review, as I'm new to kernel development, I don't know if this
has any hidden side effects!

Suggested by joe@perches.com

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hcd.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 149cdf129293..6ec8dda31118 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -40,6 +40,7 @@
 #include <linux/platform_device.h>
 #include <linux/workqueue.h>
 #include <linux/pm_runtime.h>
+#include <linux/types.h>
 
 #include <linux/usb.h>
 #include <linux/usb/hcd.h>
@@ -92,10 +93,7 @@ EXPORT_SYMBOL_GPL (usb_bus_list);
 
 /* used when allocating bus numbers */
 #define USB_MAXBUS		64
-struct usb_busmap {
-	unsigned long busmap[USB_MAXBUS / (8*sizeof (unsigned long))];
-};
-static struct usb_busmap busmap;
+static DECLARE_BITMAP(busmap, USB_MAXBUS);
 
 /* used when updating list of hcds */
 DEFINE_MUTEX(usb_bus_list_lock);	/* exported only for usbfs */
@@ -941,12 +939,12 @@ static int usb_register_bus(struct usb_bus *bus)
 	int busnum;
 
 	mutex_lock(&usb_bus_list_lock);
-	busnum = find_next_zero_bit (busmap.busmap, USB_MAXBUS, 1);
+	busnum = find_next_zero_bit(busmap, USB_MAXBUS, 1);
 	if (busnum >= USB_MAXBUS) {
 		printk (KERN_ERR "%s: too many buses\n", usbcore_name);
 		goto error_find_busnum;
 	}
-	set_bit (busnum, busmap.busmap);
+	set_bit(busnum, busmap);
 	bus->busnum = busnum;
 
 	/* Add it to the local list of buses */
@@ -987,7 +985,7 @@ static void usb_deregister_bus (struct usb_bus *bus)
 
 	usb_notify_remove_bus(bus);
 
-	clear_bit (bus->busnum, busmap.busmap);
+	clear_bit(bus->busnum, busmap);
 }
 
 /**
-- 
cgit 


From 92ad247995c587e07cb67dcc8aafac4db636e394 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Wed, 9 Oct 2013 17:01:10 +0200
Subject: USB: serial: clean up comments in generic driver

Clean up some comments, drop excessive comments and fix-up style.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/generic.c | 57 +++++++++++++++++++-------------------------
 1 file changed, 25 insertions(+), 32 deletions(-)

diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 3a5dac879094..fce374657ea2 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -7,7 +7,6 @@
  *	This program is free software; you can redistribute it and/or
  *	modify it under the terms of the GNU General Public License version
  *	2 as published by the Free Software Foundation.
- *
  */
 
 #include <linux/kernel.h>
@@ -37,7 +36,6 @@ MODULE_PARM_DESC(product, "User specified USB idProduct");
 
 static struct usb_device_id generic_device_ids[2]; /* Initially all zeroes. */
 
-/* All of the device info needed for the Generic Serial Converter */
 struct usb_serial_driver usb_serial_generic_device = {
 	.driver = {
 		.owner =	THIS_MODULE,
@@ -66,7 +64,6 @@ int usb_serial_generic_register(void)
 	generic_device_ids[0].match_flags =
 		USB_DEVICE_ID_MATCH_VENDOR | USB_DEVICE_ID_MATCH_PRODUCT;
 
-	/* register our generic driver with ourselves */
 	retval = usb_serial_register_drivers(serial_drivers,
 			"usbserial_generic", generic_device_ids);
 #endif
@@ -76,7 +73,6 @@ int usb_serial_generic_register(void)
 void usb_serial_generic_deregister(void)
 {
 #ifdef CONFIG_USB_SERIAL_GENERIC
-	/* remove our generic driver */
 	usb_serial_deregister_drivers(serial_drivers);
 #endif
 }
@@ -86,13 +82,11 @@ int usb_serial_generic_open(struct tty_struct *tty, struct usb_serial_port *port
 	int result = 0;
 	unsigned long flags;
 
-	/* clear the throttle flags */
 	spin_lock_irqsave(&port->lock, flags);
 	port->throttled = 0;
 	port->throttle_req = 0;
 	spin_unlock_irqrestore(&port->lock, flags);
 
-	/* if we have a bulk endpoint, start reading from it */
 	if (port->bulk_in_size)
 		result = usb_serial_generic_submit_read_urbs(port, GFP_KERNEL);
 
@@ -127,10 +121,12 @@ int usb_serial_generic_prepare_write_buffer(struct usb_serial_port *port,
 }
 
 /**
- * usb_serial_generic_write_start - kick off an URB write
- * @port:	Pointer to the &struct usb_serial_port data
+ * usb_serial_generic_write_start - start writing buffered data
+ * @port: usb-serial port
+ *
+ * Serialised using USB_SERIAL_WRITE_BUSY flag.
  *
- * Returns zero on success, or a negative errno value
+ * Return: Zero on success or if busy, otherwise a negative errno value.
  */
 static int usb_serial_generic_write_start(struct usb_serial_port *port)
 {
@@ -175,9 +171,10 @@ retry:
 		clear_bit_unlock(USB_SERIAL_WRITE_BUSY, &port->flags);
 		return result;
 	}
-
-	/* Try sending off another urb, unless in irq context (in which case
-	 * there will be no free urb). */
+	/*
+	 * Try sending off another urb, unless in irq context (in which case
+	 * there will be no free urb).
+	 */
 	if (!in_irq())
 		goto retry;
 
@@ -187,22 +184,20 @@ retry:
 }
 
 /**
- * usb_serial_generic_write - generic write function for serial USB devices
- * @tty:	Pointer to &struct tty_struct for the device
- * @port:	Pointer to the &usb_serial_port structure for the device
- * @buf:	Pointer to the data to write
- * @count:	Number of bytes to write
+ * usb_serial_generic_write - generic write function
+ * @tty: tty for the port
+ * @port: usb-serial port
+ * @buf: data to write
+ * @count: number of bytes to write
  *
- * Returns the number of characters actually written, which may be anything
- * from zero to @count. If an error occurs, it returns the negative errno
- * value.
+ * Return: The number of characters buffered, which may be anything from
+ * zero to @count, or a negative errno value.
  */
 int usb_serial_generic_write(struct tty_struct *tty,
 	struct usb_serial_port *port, const unsigned char *buf, int count)
 {
 	int result;
 
-	/* only do something if we have a bulk out endpoint */
 	if (!port->bulk_out_size)
 		return -ENODEV;
 
@@ -337,10 +332,11 @@ void usb_serial_generic_process_read_urb(struct urb *urb)
 
 	if (!urb->actual_length)
 		return;
-
-	/* The per character mucking around with sysrq path it too slow for
-	   stuff like 3G modems, so shortcircuit it in the 99.9999999% of cases
-	   where the USB serial is not a console anyway */
+	/*
+	 * The per character mucking around with sysrq path it too slow for
+	 * stuff like 3G modems, so shortcircuit it in the 99.9999999% of
+	 * cases where the USB serial is not a console anyway.
+	 */
 	if (!port->port.console || !port->sysrq)
 		tty_insert_flip_string(&port->port, ch, urb->actual_length);
 	else {
@@ -425,8 +421,6 @@ void usb_serial_generic_throttle(struct tty_struct *tty)
 	struct usb_serial_port *port = tty->driver_data;
 	unsigned long flags;
 
-	/* Set the throttle request flag. It will be picked up
-	 * by usb_serial_generic_read_bulk_callback(). */
 	spin_lock_irqsave(&port->lock, flags);
 	port->throttle_req = 1;
 	spin_unlock_irqrestore(&port->lock, flags);
@@ -438,7 +432,6 @@ void usb_serial_generic_unthrottle(struct tty_struct *tty)
 	struct usb_serial_port *port = tty->driver_data;
 	int was_throttled;
 
-	/* Clear the throttle flags */
 	spin_lock_irq(&port->lock);
 	was_throttled = port->throttled;
 	port->throttled = port->throttle_req = 0;
@@ -558,10 +551,10 @@ int usb_serial_handle_break(struct usb_serial_port *port)
 EXPORT_SYMBOL_GPL(usb_serial_handle_break);
 
 /**
- *	usb_serial_handle_dcd_change - handle a change of carrier detect state
- *	@port: usb_serial_port structure for the open port
- *	@tty: tty_struct structure for the port
- *	@status: new carrier detect status, nonzero if active
+ * usb_serial_handle_dcd_change - handle a change of carrier detect state
+ * @port: usb-serial port
+ * @tty: tty for the port
+ * @status: new carrier detect status, nonzero if active
  */
 void usb_serial_handle_dcd_change(struct usb_serial_port *usb_port,
 				struct tty_struct *tty, unsigned int status)
-- 
cgit 


From 818f60365a29ab1266d92c6a91094fbf93465ff8 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Wed, 9 Oct 2013 17:01:11 +0200
Subject: USB: serial: add memory flags to usb_serial_generic_write_start

Add memory-flags parameter to usb_serial_generic_write_start which is
called from write, resume and completion handler, all with different
allocation requirements.

Note that by using the memory flag to determine when called from the
completion handler, everything will work as before even if the
completion handler is run with interrupts enabled (as suggested).

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/generic.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index fce374657ea2..31f78290c0e4 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -123,12 +123,14 @@ int usb_serial_generic_prepare_write_buffer(struct usb_serial_port *port,
 /**
  * usb_serial_generic_write_start - start writing buffered data
  * @port: usb-serial port
+ * @mem_flags: flags to use for memory allocations
  *
  * Serialised using USB_SERIAL_WRITE_BUSY flag.
  *
  * Return: Zero on success or if busy, otherwise a negative errno value.
  */
-static int usb_serial_generic_write_start(struct usb_serial_port *port)
+static int usb_serial_generic_write_start(struct usb_serial_port *port,
+							gfp_t mem_flags)
 {
 	struct urb *urb;
 	int count, result;
@@ -159,7 +161,7 @@ retry:
 	spin_unlock_irqrestore(&port->lock, flags);
 
 	clear_bit(i, &port->write_urbs_free);
-	result = usb_submit_urb(urb, GFP_ATOMIC);
+	result = usb_submit_urb(urb, mem_flags);
 	if (result) {
 		dev_err_console(port, "%s - error submitting urb: %d\n",
 						__func__, result);
@@ -172,10 +174,10 @@ retry:
 		return result;
 	}
 	/*
-	 * Try sending off another urb, unless in irq context (in which case
-	 * there will be no free urb).
+	 * Try sending off another urb, unless called from completion handler
+	 * (in which case there will be no free urb or no data).
 	 */
-	if (!in_irq())
+	if (mem_flags != GFP_ATOMIC)
 		goto retry;
 
 	clear_bit_unlock(USB_SERIAL_WRITE_BUSY, &port->flags);
@@ -205,7 +207,7 @@ int usb_serial_generic_write(struct tty_struct *tty,
 		return 0;
 
 	count = kfifo_in_locked(&port->write_fifo, buf, count, &port->lock);
-	result = usb_serial_generic_write_start(port);
+	result = usb_serial_generic_write_start(port, GFP_KERNEL);
 	if (result)
 		return result;
 
@@ -409,7 +411,7 @@ void usb_serial_generic_write_bulk_callback(struct urb *urb)
 		kfifo_reset_out(&port->write_fifo);
 		spin_unlock_irqrestore(&port->lock, flags);
 	} else {
-		usb_serial_generic_write_start(port);
+		usb_serial_generic_write_start(port, GFP_ATOMIC);
 	}
 
 	usb_serial_port_softint(port);
@@ -598,7 +600,7 @@ int usb_serial_generic_resume(struct usb_serial *serial)
 		}
 
 		if (port->bulk_out_size) {
-			r = usb_serial_generic_write_start(port);
+			r = usb_serial_generic_write_start(port, GFP_NOIO);
 			if (r < 0)
 				c++;
 		}
-- 
cgit 


From 706cd17e8559c96dc883ba692c931f1ef31fbc5c Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Wed, 9 Oct 2013 17:01:12 +0200
Subject: USB: serial: export usb_serial_generic_write_start

Export usb_serial_generic_write_start which is needed when implementing
a custom resume function while still relying on the generic write
implementation.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/generic.c | 3 ++-
 include/linux/usb/serial.h   | 2 ++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 31f78290c0e4..2b01ec8651c2 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -129,7 +129,7 @@ int usb_serial_generic_prepare_write_buffer(struct usb_serial_port *port,
  *
  * Return: Zero on success or if busy, otherwise a negative errno value.
  */
-static int usb_serial_generic_write_start(struct usb_serial_port *port,
+int usb_serial_generic_write_start(struct usb_serial_port *port,
 							gfp_t mem_flags)
 {
 	struct urb *urb;
@@ -184,6 +184,7 @@ retry:
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(usb_serial_generic_write_start);
 
 /**
  * usb_serial_generic_write - generic write function
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index d528b8045150..704a1ab8240c 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -320,6 +320,8 @@ extern struct usb_serial_port *usb_serial_port_get_by_minor(unsigned int minor);
 extern void usb_serial_put(struct usb_serial *serial);
 extern int usb_serial_generic_open(struct tty_struct *tty,
 	struct usb_serial_port *port);
+extern int usb_serial_generic_write_start(struct usb_serial_port *port,
+							gfp_t mem_flags);
 extern int usb_serial_generic_write(struct tty_struct *tty,
 	struct usb_serial_port *port, const unsigned char *buf, int count);
 extern void usb_serial_generic_close(struct usb_serial_port *port);
-- 
cgit 


From a91ccd26e75235d86248d018fe3779732bcafd8d Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Wed, 9 Oct 2013 17:01:09 +0200
Subject: USB: mos7840: fix tiocmget error handling

Make sure to return errors from tiocmget rather than rely on
uninitialised stack data.

Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/mos7840.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index fdf953539c62..e5bdd987b9e8 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -1532,7 +1532,11 @@ static int mos7840_tiocmget(struct tty_struct *tty)
 		return -ENODEV;
 
 	status = mos7840_get_uart_reg(port, MODEM_STATUS_REGISTER, &msr);
+	if (status != 1)
+		return -EIO;
 	status = mos7840_get_uart_reg(port, MODEM_CONTROL_REGISTER, &mcr);
+	if (status != 1)
+		return -EIO;
 	result = ((mcr & MCR_DTR) ? TIOCM_DTR : 0)
 	    | ((mcr & MCR_RTS) ? TIOCM_RTS : 0)
 	    | ((mcr & MCR_LOOPBACK) ? TIOCM_LOOP : 0)
-- 
cgit 


From 469271f8c48f12efc63a49b5bb388a754c957a0b Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Thu, 10 Oct 2013 23:41:27 +0200
Subject: drivers: usb: core: {file,hub,sysfs,usb}.c: Whitespace fixes

including:

- removing of trailing whitespace
- removing spaces before array indexing (foo [] to foo[])
- reindention of a switch-case block
- spaces to tabs

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/file.c  |   6 +--
 drivers/usb/core/hub.c   | 111 +++++++++++++++++++++++------------------------
 drivers/usb/core/sysfs.c |   5 ++-
 drivers/usb/core/usb.c   |   2 +-
 4 files changed, 62 insertions(+), 62 deletions(-)

diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c
index 7421888087a3..903c7efcc367 100644
--- a/drivers/usb/core/file.c
+++ b/drivers/usb/core/file.c
@@ -8,7 +8,7 @@
  * (C) Copyright Deti Fliegl 1999 (new USB architecture)
  * (C) Copyright Randy Dunlap 2000
  * (C) Copyright David Brownell 2000-2001 (kernel hotplug, usb_device_id,
- 	more docs, etc)
+ *	more docs, etc)
  * (C) Copyright Yggdrasil Computing, Inc. 2000
  *     (usb_device_id matching changes by Adam J. Richter)
  * (C) Copyright Greg Kroah-Hartman 2002-2003
@@ -44,7 +44,7 @@ static int usb_open(struct inode * inode, struct file * file)
 	file->f_op = new_fops;
 	/* Curiouser and curiouser... NULL ->open() as "no device" ? */
 	if (file->f_op->open)
-		err = file->f_op->open(inode,file);
+		err = file->f_op->open(inode, file);
 	if (err) {
 		fops_put(file->f_op);
 		file->f_op = fops_get(old_fops);
@@ -166,7 +166,7 @@ int usb_register_dev(struct usb_interface *intf,
 	char *temp;
 
 #ifdef CONFIG_USB_DYNAMIC_MINORS
-	/* 
+	/*
 	 * We don't care what the device tries to start at, we want to start
 	 * at zero to pack the devices into the smallest available space with
 	 * no holes in the minor range.
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 2e804a5354c5..6e451ca4c2df 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -120,7 +120,7 @@ static inline char *portspeed(struct usb_hub *hub, int portstatus)
 	if (hub_is_superspeed(hub->hdev))
 		return "5.0 Gb/s";
 	if (portstatus & USB_PORT_STAT_HIGH_SPEED)
-    		return "480 Mb/s";
+		return "480 Mb/s";
 	else if (portstatus & USB_PORT_STAT_LOW_SPEED)
 		return "1.5 Mb/s";
 	else
@@ -862,7 +862,7 @@ static int hub_hub_status(struct usb_hub *hub,
 				"%s failed (err = %d)\n", __func__, ret);
 	} else {
 		*status = le16_to_cpu(hub->status->hub.wHubStatus);
-		*change = le16_to_cpu(hub->status->hub.wHubChange); 
+		*change = le16_to_cpu(hub->status->hub.wHubChange);
 		ret = 0;
 	}
 	mutex_unlock(&hub->status_mutex);
@@ -961,7 +961,7 @@ static void hub_port_logical_disconnect(struct usb_hub *hub, int port1)
 	 */
 
 	set_bit(port1, hub->change_bits);
- 	kick_khubd(hub);
+	kick_khubd(hub);
 }
 
 /**
@@ -1366,7 +1366,7 @@ static int hub_configure(struct usb_hub *hub,
 	if ((wHubCharacteristics & HUB_CHAR_COMPOUND) &&
 			!(hub_is_superspeed(hdev))) {
 		int	i;
-		char	portstr [USB_MAXCHILDREN + 1];
+		char	portstr[USB_MAXCHILDREN + 1];
 
 		for (i = 0; i < hdev->maxchild; i++)
 			portstr[i] = hub->descriptor->u.hs.DeviceRemovable
@@ -1434,32 +1434,32 @@ static int hub_configure(struct usb_hub *hub,
 
 	/* Note 8 FS bit times == (8 bits / 12000000 bps) ~= 666ns */
 	switch (wHubCharacteristics & HUB_CHAR_TTTT) {
-		case HUB_TTTT_8_BITS:
-			if (hdev->descriptor.bDeviceProtocol != 0) {
-				hub->tt.think_time = 666;
-				dev_dbg(hub_dev, "TT requires at most %d "
-						"FS bit times (%d ns)\n",
-					8, hub->tt.think_time);
-			}
-			break;
-		case HUB_TTTT_16_BITS:
-			hub->tt.think_time = 666 * 2;
-			dev_dbg(hub_dev, "TT requires at most %d "
-					"FS bit times (%d ns)\n",
-				16, hub->tt.think_time);
-			break;
-		case HUB_TTTT_24_BITS:
-			hub->tt.think_time = 666 * 3;
-			dev_dbg(hub_dev, "TT requires at most %d "
-					"FS bit times (%d ns)\n",
-				24, hub->tt.think_time);
-			break;
-		case HUB_TTTT_32_BITS:
-			hub->tt.think_time = 666 * 4;
+	case HUB_TTTT_8_BITS:
+		if (hdev->descriptor.bDeviceProtocol != 0) {
+			hub->tt.think_time = 666;
 			dev_dbg(hub_dev, "TT requires at most %d "
 					"FS bit times (%d ns)\n",
-				32, hub->tt.think_time);
-			break;
+				8, hub->tt.think_time);
+		}
+		break;
+	case HUB_TTTT_16_BITS:
+		hub->tt.think_time = 666 * 2;
+		dev_dbg(hub_dev, "TT requires at most %d "
+				"FS bit times (%d ns)\n",
+			16, hub->tt.think_time);
+		break;
+	case HUB_TTTT_24_BITS:
+		hub->tt.think_time = 666 * 3;
+		dev_dbg(hub_dev, "TT requires at most %d "
+				"FS bit times (%d ns)\n",
+			24, hub->tt.think_time);
+		break;
+	case HUB_TTTT_32_BITS:
+		hub->tt.think_time = 666 * 4;
+		dev_dbg(hub_dev, "TT requires at most %d "
+				"FS bit times (%d ns)\n",
+			32, hub->tt.think_time);
+		break;
 	}
 
 	/* probe() zeroes hub->indicator[] */
@@ -1565,7 +1565,7 @@ static int hub_configure(struct usb_hub *hub,
 
 	/* maybe cycle the hub leds */
 	if (hub->has_indicators && blinkenlights)
-		hub->indicator [0] = INDICATOR_CYCLE;
+		hub->indicator[0] = INDICATOR_CYCLE;
 
 	for (i = 0; i < hdev->maxchild; i++) {
 		ret = usb_hub_create_port_device(hub, i + 1);
@@ -1983,7 +1983,7 @@ static void choose_devnum(struct usb_device *udev)
 		if (devnum >= 128)
 			devnum = find_next_zero_bit(bus->devmap.devicemap,
 						    128, 1);
-		bus->devnum_next = ( devnum >= 127 ? 1 : devnum + 1);
+		bus->devnum_next = (devnum >= 127 ? 1 : devnum + 1);
 	}
 	if (devnum < 128) {
 		set_bit(devnum, bus->devmap.devicemap);
@@ -2237,8 +2237,7 @@ static int usb_enumerate_device(struct usb_device *udev)
 		udev->product = kstrdup("n/a (unauthorized)", GFP_KERNEL);
 		udev->manufacturer = kstrdup("n/a (unauthorized)", GFP_KERNEL);
 		udev->serial = kstrdup("n/a (unauthorized)", GFP_KERNEL);
-	}
-	else {
+	} else {
 		/* read the standard strings and cache them if present */
 		udev->product = usb_cache_string(udev, udev->descriptor.iProduct);
 		udev->manufacturer = usb_cache_string(udev,
@@ -3113,8 +3112,8 @@ static int finish_port_resume(struct usb_device *udev)
  retry_reset_resume:
 		status = usb_reset_and_verify_device(udev);
 
- 	/* 10.5.4.5 says be sure devices in the tree are still there.
- 	 * For now let's assume the device didn't go crazy on resume,
+	/* 10.5.4.5 says be sure devices in the tree are still there.
+	 * For now let's assume the device didn't go crazy on resume,
 	 * and device drivers will know about any resume quirks.
 	 */
 	if (status == 0) {
@@ -3860,7 +3859,7 @@ EXPORT_SYMBOL_GPL(usb_enable_ltm);
  * Between connect detection and reset signaling there must be a delay
  * of 100ms at least for debounce and power-settling.  The corresponding
  * timer shall restart whenever the downstream port detects a disconnect.
- * 
+ *
  * Apparently there are some bluetooth and irda-dongles and a number of
  * low-speed devices for which this debounce period may last over a second.
  * Not covered by the spec - but easy to deal with.
@@ -4060,7 +4059,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
 		udev->tt = &hub->tt;
 		udev->ttport = port1;
 	}
- 
+
 	/* Why interleave GET_DESCRIPTOR and SET_ADDRESS this way?
 	 * Because device hardware and firmware is sometimes buggy in
 	 * this area, and this is how Linux has done it for ages.
@@ -4135,11 +4134,11 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
 #undef GET_DESCRIPTOR_BUFSIZE
 		}
 
- 		/*
- 		 * If device is WUSB, we already assigned an
- 		 * unauthorized address in the Connect Ack sequence;
- 		 * authorization will assign the final address.
- 		 */
+		/*
+		 * If device is WUSB, we already assigned an
+		 * unauthorized address in the Connect Ack sequence;
+		 * authorization will assign the final address.
+		 */
 		if (udev->wusb == 0) {
 			for (j = 0; j < SET_ADDRESS_TRIES; ++j) {
 				retval = hub_set_address(udev, devnum);
@@ -4168,7 +4167,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
 			msleep(10);
 			if (USE_NEW_SCHEME(retry_counter) && !(hcd->driver->flags & HCD_USB3))
 				break;
-  		}
+		}
 
 		retval = usb_get_device_descriptor(udev, 8);
 		if (retval < 8) {
@@ -4224,7 +4223,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
 		udev->ep0.desc.wMaxPacketSize = cpu_to_le16(i);
 		usb_ep0_reinit(udev);
 	}
-  
+
 	retval = usb_get_device_descriptor(udev, USB_DT_DEVICE_SIZE);
 	if (retval < (signed)sizeof(udev->descriptor)) {
 		if (retval != -ENODEV)
@@ -4321,7 +4320,7 @@ hub_power_remaining (struct usb_hub *hub)
 	}
 	if (remaining < 0) {
 		dev_warn(hub->intfdev, "%dmA over power budget!\n",
-			- remaining);
+			-remaining);
 		remaining = 0;
 	}
 	return remaining;
@@ -4432,7 +4431,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
 			set_port_feature(hdev, port1, USB_PORT_FEAT_POWER);
 
 		if (portstatus & USB_PORT_STAT_ENABLE)
-  			goto done;
+			goto done;
 		return;
 	}
 	if (hub_is_superspeed(hub->hdev))
@@ -4455,7 +4454,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
 		}
 
 		usb_set_device_state(udev, USB_STATE_POWERED);
- 		udev->bus_mA = hub->mA_per_port;
+		udev->bus_mA = hub->mA_per_port;
 		udev->level = hdev->level + 1;
 		udev->wusb = hub_is_wusb(hub);
 
@@ -4509,7 +4508,7 @@ static void hub_port_connect_change(struct usb_hub *hub, int port1,
 				goto loop_disable;
 			}
 		}
- 
+
 		/* check for devices running slower than they could */
 		if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0200
 				&& udev->speed == USB_SPEED_FULL
@@ -4569,7 +4568,7 @@ loop:
 			dev_err(hub_dev, "unable to enumerate USB device on port %d\n",
 					port1);
 	}
- 
+
 done:
 	hub_port_disable(hub, port1, 1);
 	if (hcd->driver->relinquish_port && !hub->hdev->parent)
@@ -4734,7 +4733,7 @@ static void hub_events(void)
 				 * EM interference sometimes causes badly
 				 * shielded USB devices to be shutdown by
 				 * the hub, this hack enables them again.
-				 * Works at least with mouse driver. 
+				 * Works at least with mouse driver.
 				 */
 				if (!(portstatus & USB_PORT_STAT_ENABLE)
 				    && !connect_change
@@ -4846,7 +4845,7 @@ static void hub_events(void)
 				dev_dbg(hub_dev, "over-current change\n");
 				clear_hub_feature(hdev, C_HUB_OVER_CURRENT);
 				msleep(500);	/* Cool down */
-                        	hub_power_on(hub, true);
+				hub_power_on(hub, true);
 				hub_hub_status(hub, &status, &unused);
 				if (status & HUB_STATUS_OVERCURRENT)
 					dev_err(hub_dev, "over-current "
@@ -4866,7 +4865,7 @@ static void hub_events(void)
 		usb_unlock_device(hdev);
 		kref_put(&hub->kref, hub_release);
 
-        } /* end while (1) */
+	} /* end while (1) */
 }
 
 static int hub_thread(void *__unused)
@@ -4891,7 +4890,7 @@ static int hub_thread(void *__unused)
 
 static const struct usb_device_id hub_id_table[] = {
     { .match_flags = USB_DEVICE_ID_MATCH_VENDOR
-	           | USB_DEVICE_ID_MATCH_INT_CLASS,
+			| USB_DEVICE_ID_MATCH_INT_CLASS,
       .idVendor = USB_VENDOR_GENESYS_LOGIC,
       .bInterfaceClass = USB_CLASS_HUB,
       .driver_info = HUB_QUIRK_CHECK_PORT_AUTOSUSPEND},
@@ -5125,13 +5124,13 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
 
 	if (ret < 0)
 		goto re_enumerate;
- 
+
 	/* Device might have changed firmware (DFU or similar) */
 	if (descriptors_changed(udev, &descriptor, bos)) {
 		dev_info(&udev->dev, "device firmware changed\n");
 		udev->descriptor = descriptor;	/* for disconnect() calls */
 		goto re_enumerate;
-  	}
+	}
 
 	/* Restore the device's previous configuration */
 	if (!udev->actconfig)
@@ -5156,7 +5155,7 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
 			udev->actconfig->desc.bConfigurationValue, ret);
 		mutex_unlock(hcd->bandwidth_mutex);
 		goto re_enumerate;
-  	}
+	}
 	mutex_unlock(hcd->bandwidth_mutex);
 	usb_set_device_state(udev, USB_STATE_CONFIGURED);
 
@@ -5203,7 +5202,7 @@ done:
 	usb_release_bos_descriptor(udev);
 	udev->bos = bos;
 	return 0;
- 
+
 re_enumerate:
 	/* LPM state doesn't matter when we're about to destroy the device. */
 	hub_port_logical_disconnect(parent_hub, port1);
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index 59cb5f99467a..5cf431b0424c 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -398,7 +398,8 @@ static DEVICE_ATTR_RW(autosuspend);
 static const char on_string[] = "on";
 static const char auto_string[] = "auto";
 
-static void warn_level(void) {
+static void warn_level(void)
+{
 	static int level_warned;
 
 	if (!level_warned) {
@@ -652,7 +653,7 @@ static ssize_t authorized_store(struct device *dev,
 		result = usb_deauthorize_device(usb_dev);
 	else
 		result = usb_authorize_device(usb_dev);
-	return result < 0? result : size;
+	return result < 0 ? result : size;
 }
 static DEVICE_ATTR_IGNORE_LOCKDEP(authorized, S_IRUGO | S_IWUSR,
 				  authorized_show, authorized_store);
diff --git a/drivers/usb/core/usb.c b/drivers/usb/core/usb.c
index 0a6ee2e70b25..4d1144990d4c 100644
--- a/drivers/usb/core/usb.c
+++ b/drivers/usb/core/usb.c
@@ -497,7 +497,7 @@ struct usb_device *usb_alloc_dev(struct usb_device *parent,
 		dev->authorized = 1;
 	else {
 		dev->authorized = usb_hcd->authorized_default;
-		dev->wusb = usb_bus_is_wusb(bus)? 1 : 0;
+		dev->wusb = usb_bus_is_wusb(bus) ? 1 : 0;
 	}
 	return dev;
 }
-- 
cgit 


From 1335f2d2bad83a4a1e1351e906646fd28225c602 Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Thu, 10 Oct 2013 23:41:28 +0200
Subject: drivers: usb: core: file.c: moved asterisk to variable name

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c
index 903c7efcc367..3bdfbf88a0ae 100644
--- a/drivers/usb/core/file.c
+++ b/drivers/usb/core/file.c
@@ -27,7 +27,7 @@
 static const struct file_operations *usb_minors[MAX_USB_MINORS];
 static DECLARE_RWSEM(minor_rwsem);
 
-static int usb_open(struct inode * inode, struct file * file)
+static int usb_open(struct inode *inode, struct file *file)
 {
 	int minor = iminor(inode);
 	const struct file_operations *c;
-- 
cgit 


From 781b2137e3c50e4465908b2c7ffd8f4c48c3461e Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Thu, 10 Oct 2013 23:41:29 +0200
Subject: drivers: usb: core: hub.c: Comments shouldnt be C99 // comment style

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hub.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 6e451ca4c2df..3f8933f10e7d 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -2493,7 +2493,7 @@ error_device_descriptor:
 	usb_autosuspend_device(usb_dev);
 error_autoresume:
 out_authorized:
-	usb_unlock_device(usb_dev);	// complements locktree
+	usb_unlock_device(usb_dev);	/* complements locktree */
 	return result;
 }
 
@@ -3215,7 +3215,7 @@ int usb_port_resume(struct usb_device *udev, pm_message_t msg)
 	if (status == 0 && !port_is_suspended(hub, portstatus))
 		goto SuspendCleared;
 
-	// dev_dbg(hub->intfdev, "resume port %d\n", port1);
+	/* dev_dbg(hub->intfdev, "resume port %d\n", port1); */
 
 	set_bit(port1, hub->busy_bits);
 
-- 
cgit 


From d5da94b88efebc375bfcbab6bb0e59a6e8a6571e Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Fri, 11 Oct 2013 17:28:04 -0700
Subject: ARM: OMAP2+: Fix build error for realtime counter init if not enabled

Otherwise we can get an error with some configs:

arch/arm/mach-omap2/timer.c:73: undefined reference to `omap_smc1'

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/timer.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index 87259dc82aa2..d59b51f07cf2 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -66,12 +66,15 @@
 
 static struct omap_dm_timer clkev;
 static struct clock_event_device clockevent_gpt;
+
+#ifdef CONFIG_SOC_HAS_REALTIME_COUNTER
 static unsigned long arch_timer_freq;
 
 void set_cntfreq(void)
 {
 	omap_smc1(OMAP5_DRA7_MON_SET_CNTFRQ_INDEX, arch_timer_freq);
 }
+#endif
 
 static irqreturn_t omap2_gp_timer_interrupt(int irq, void *dev_id)
 {
-- 
cgit 


From 7f72134e08bb15511ffcb880cdd01ca77ea54cb7 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 11 Oct 2013 14:44:58 -0700
Subject: Bluetooth: Add MGMT_OP_SET_SCAN_PARAMS to supported commands list

When adding support for MGMT_OP_SET_SCAN_PARAMS command the addition
to the supported commands list has been forgotten. This is needed
for userspace to detect if the command is supported or not.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index aa59490044aa..338878c13571 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -78,6 +78,7 @@ static const u16 mgmt_commands[] = {
 	MGMT_OP_SET_ADVERTISING,
 	MGMT_OP_SET_BREDR,
 	MGMT_OP_SET_STATIC_ADDRESS,
+	MGMT_OP_SET_SCAN_PARAMS,
 };
 
 static const u16 mgmt_events[] = {
-- 
cgit 


From 4ca048e3a38e9691eb3e390c5eea3acd9b51cd17 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 11 Oct 2013 16:42:07 -0700
Subject: Bluetooth: Fix HCI init for 1st generation BlueFRITZ! devices

The 1st generation of BlueFRITZ! devices from AVM Berlin pretend
to be HCI version 1.2 controllers, but they are not. They are simple
Bluetooth 1.1 devices.

Since this company never created any newer controllers, it is safe
to use the manufacturer ID instead of an USB quirk.

< HCI Command: Read Page Scan Activity (0x03|0x001b) plen 0
> HCI Event: Command Complete (0x0e) plen 8
      Read Page Scan Activity (0x03|0x001b) ncmd 1
        Status: Success (0x00)
        Interval: 1280.000 msec (0x0800)
        Window: 21.250 msec (0x0022)
< HCI Command: Read Page Scan Type (0x03|0x0046) plen 0
> HCI Event: Command Status (0x0f) plen 4
      Read Page Scan Type (0x03|0x0046) ncmd 1
        Status: Unknown HCI Command (0x01)

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 8f70a35b4d0e..082f3966f894 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -353,6 +353,8 @@ static void hci_init1_req(struct hci_request *req, unsigned long opt)
 
 static void bredr_setup(struct hci_request *req)
 {
+	struct hci_dev *hdev = req->hdev;
+
 	__le16 param;
 	__u8 flt_type;
 
@@ -376,8 +378,10 @@ static void bredr_setup(struct hci_request *req)
 	param = __constant_cpu_to_le16(0x7d00);
 	hci_req_add(req, HCI_OP_WRITE_CA_TIMEOUT, 2, &param);
 
-	/* Read page scan parameters */
-	if (req->hdev->hci_ver > BLUETOOTH_VER_1_1) {
+	/* AVM Berlin (31), aka "BlueFRITZ!", reports version 1.2,
+	 * but it does not support page scan related HCI commands.
+	 */
+	if (hdev->manufacturer != 31 && hdev->hci_ver > BLUETOOTH_VER_1_1) {
 		hci_req_add(req, HCI_OP_READ_PAGE_SCAN_ACTIVITY, 0, NULL);
 		hci_req_add(req, HCI_OP_READ_PAGE_SCAN_TYPE, 0, NULL);
 	}
-- 
cgit 


From 97dbc03b4776fbcfda99c4486357d28115d9adc0 Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Thu, 25 Apr 2013 10:37:26 +0200
Subject: batman-adv: only add recordroute information to icmp request/reply

Adding host information for record route is only required for ICMP
requests and replys, and should not be added to just any (future?)
packet type.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/routing.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 457dfef9c5fc..0dc1c0e84451 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -379,7 +379,9 @@ int batadv_recv_icmp_packet(struct sk_buff *skb,
 	icmp_packet = (struct batadv_icmp_packet_rr *)skb->data;
 
 	/* add record route information if not full */
-	if ((hdr_size == sizeof(struct batadv_icmp_packet_rr)) &&
+	if ((icmp_packet->msg_type == BATADV_ECHO_REPLY ||
+	     icmp_packet->msg_type == BATADV_ECHO_REQUEST) &&
+	    (hdr_size == sizeof(struct batadv_icmp_packet_rr)) &&
 	    (icmp_packet->rr_cur < BATADV_RR_LEN)) {
 		memcpy(&(icmp_packet->rr[icmp_packet->rr_cur]),
 		       ethhdr->h_dest, ETH_ALEN);
-- 
cgit 


From 1e5d49fce3f16bfeac02c4ad3821be0665f66a33 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <ordex@autistici.org>
Date: Sun, 5 May 2013 19:32:38 +0200
Subject: batman-adv: make tt_global_add static and return bool

batadv_tt_global_add is not used anymore outside of the TT
code thanks to the TVLV implementation. It can therefore be
declared as static

Last user has been removed by 3de4e64df0f1326db7cc0ef25f5af8522850252d
("batman-adv: tvlv - convert roaming adv packet to use tvlv unicast packets")

Moreover make it return bool since its result can be either 0 or 1.

Reported-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/translation-table.c | 14 ++++++++------
 net/batman-adv/translation-table.h |  4 ----
 2 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index c7416947a4e0..b3c43691bc6c 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -805,15 +805,17 @@ out:
  * If a TT local entry exists for this non-mesh client remove it.
  *
  * The caller must hold orig_node refcount.
+ *
+ * Return true if the new entry has been added, false otherwise
  */
-int batadv_tt_global_add(struct batadv_priv *bat_priv,
-			 struct batadv_orig_node *orig_node,
-			 const unsigned char *tt_addr, uint16_t flags,
-			 uint8_t ttvn)
+static bool batadv_tt_global_add(struct batadv_priv *bat_priv,
+				 struct batadv_orig_node *orig_node,
+				 const unsigned char *tt_addr, uint16_t flags,
+				 uint8_t ttvn)
 {
 	struct batadv_tt_global_entry *tt_global_entry;
 	struct batadv_tt_local_entry *tt_local_entry;
-	int ret = 0;
+	bool ret = false;
 	int hash_added;
 	struct batadv_tt_common_entry *common;
 	uint16_t local_flags;
@@ -914,7 +916,7 @@ add_orig_entry:
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
 		   "Creating new global tt entry: %pM (via %pM)\n",
 		   common->addr, orig_node->orig);
-	ret = 1;
+	ret = true;
 
 out_remove:
 
diff --git a/net/batman-adv/translation-table.h b/net/batman-adv/translation-table.h
index b4b6dea4e2be..fb710c5199c9 100644
--- a/net/batman-adv/translation-table.h
+++ b/net/batman-adv/translation-table.h
@@ -30,10 +30,6 @@ int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset);
 void batadv_tt_global_add_orig(struct batadv_priv *bat_priv,
 			       struct batadv_orig_node *orig_node,
 			       const unsigned char *tt_buff, int tt_buff_len);
-int batadv_tt_global_add(struct batadv_priv *bat_priv,
-			 struct batadv_orig_node *orig_node,
-			 const unsigned char *addr, uint16_t flags,
-			 uint8_t ttvn);
 int batadv_tt_global_seq_print_text(struct seq_file *seq, void *offset);
 void batadv_tt_global_del_orig(struct batadv_priv *bat_priv,
 			       struct batadv_orig_node *orig_node,
-- 
cgit 


From d7ee88d048542f8052fc2d3c1413ac2287d826f5 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <ordex@autistici.org>
Date: Sun, 5 May 2013 14:37:56 +0200
Subject: batman-adv: remove batadv_tt_global_add_orig declaration

batadv_tt_global_add_orig is neither used nor implemented
anymore, therefore it is possible to remove its declaration

Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/translation-table.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/net/batman-adv/translation-table.h b/net/batman-adv/translation-table.h
index fb710c5199c9..015d8b9e63b9 100644
--- a/net/batman-adv/translation-table.h
+++ b/net/batman-adv/translation-table.h
@@ -27,9 +27,6 @@ uint16_t batadv_tt_local_remove(struct batadv_priv *bat_priv,
 				const uint8_t *addr, const char *message,
 				bool roaming);
 int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset);
-void batadv_tt_global_add_orig(struct batadv_priv *bat_priv,
-			       struct batadv_orig_node *orig_node,
-			       const unsigned char *tt_buff, int tt_buff_len);
 int batadv_tt_global_seq_print_text(struct seq_file *seq, void *offset);
 void batadv_tt_global_del_orig(struct batadv_priv *bat_priv,
 			       struct batadv_orig_node *orig_node,
-- 
cgit 


From 210260594782ba9bc52732d84880573466c13441 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <ordex@autistici.org>
Date: Tue, 7 May 2013 00:29:22 +0200
Subject: batman-adv: don't use call_rcu if not needed

batadv_tt_global_entry_free_ref uses call_rcu to schedule a
function which will only free the global entry itself.

For this reason call_rcu is useless and kfree_rcu can be
used to simplify the code.

Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/translation-table.c | 20 ++++++--------------
 1 file changed, 6 insertions(+), 14 deletions(-)

diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index b3c43691bc6c..34fa6cc381c9 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -117,25 +117,17 @@ batadv_tt_local_entry_free_ref(struct batadv_tt_local_entry *tt_local_entry)
 		kfree_rcu(tt_local_entry, common.rcu);
 }
 
-static void batadv_tt_global_entry_free_rcu(struct rcu_head *rcu)
-{
-	struct batadv_tt_common_entry *tt_common_entry;
-	struct batadv_tt_global_entry *tt_global_entry;
-
-	tt_common_entry = container_of(rcu, struct batadv_tt_common_entry, rcu);
-	tt_global_entry = container_of(tt_common_entry,
-				       struct batadv_tt_global_entry, common);
-
-	kfree(tt_global_entry);
-}
-
+/**
+ * batadv_tt_global_entry_free_ref - decrement the refcounter for a
+ *  tt_global_entry and possibly free it
+ * @tt_global_entry: the object to free
+ */
 static void
 batadv_tt_global_entry_free_ref(struct batadv_tt_global_entry *tt_global_entry)
 {
 	if (atomic_dec_and_test(&tt_global_entry->common.refcount)) {
 		batadv_tt_global_del_orig_list(tt_global_entry);
-		call_rcu(&tt_global_entry->common.rcu,
-			 batadv_tt_global_entry_free_rcu);
+		kfree_rcu(tt_global_entry, common.rcu);
 	}
 }
 
-- 
cgit 


From 2f35c0c41f6b9a326574fcbcde3736309c51ffc3 Mon Sep 17 00:00:00 2001
From: Rogerio Pimentel <rogerio.pimentel@freescale.com>
Date: Fri, 11 Oct 2013 16:48:16 -0300
Subject: ARM: dts: imx6qdl-sabresd: Add backlight support for lvds

This patch adds support for lvds backlight on boards
i.MX6q-SabreSD and i.MX6dl-SabreSD

Signed-off-by: Rogerio Pimentel <rogerio.pimentel@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6qdl-sabresd.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
index 2035d6698ec5..e75e11b36dff 100644
--- a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi
@@ -80,6 +80,14 @@
 		mux-int-port = <2>;
 		mux-ext-port = <3>;
 	};
+
+	backlight {
+		compatible = "pwm-backlight";
+		pwms = <&pwm1 0 5000000>;
+		brightness-levels = <0 4 8 16 32 64 128 255>;
+		default-brightness-level = <7>;
+		status = "okay";
+	};
 };
 
 &audmux {
@@ -204,6 +212,12 @@
 	};
 };
 
+&pwm1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm0_1>;
+	status = "okay";
+};
+
 &ssi2 {
 	fsl,mode = "i2s-slave";
 	status = "okay";
-- 
cgit 


From fa87dfd6d0b067bd962ab83754cf1991ee512c0c Mon Sep 17 00:00:00 2001
From: Dong Aisheng <b29396@freescale.com>
Date: Wed, 9 Oct 2013 19:20:07 +0800
Subject: ARM: dts: imx6sl: add pinctrl uhs states for usdhc

This is needed for SD3.0 cards working on UHS mode.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6sl-evk.dts | 12 +++++--
 arch/arm/boot/dts/imx6sl.dtsi    | 77 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 86 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/imx6sl-evk.dts b/arch/arm/boot/dts/imx6sl-evk.dts
index 36ea01e308d3..c14195f6c5f9 100644
--- a/arch/arm/boot/dts/imx6sl-evk.dts
+++ b/arch/arm/boot/dts/imx6sl-evk.dts
@@ -89,8 +89,10 @@
 };
 
 &usdhc1 {
-	pinctrl-names = "default";
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
 	pinctrl-0 = <&pinctrl_usdhc1_1>;
+	pinctrl-1 = <&pinctrl_usdhc1_1_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc1_1_200mhz>;
 	bus-width = <8>;
 	cd-gpios = <&gpio4 7 0>;
 	wp-gpios = <&gpio4 6 0>;
@@ -98,16 +100,20 @@
 };
 
 &usdhc2 {
-	pinctrl-names = "default";
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
 	pinctrl-0 = <&pinctrl_usdhc2_1>;
+	pinctrl-1 = <&pinctrl_usdhc2_1_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc2_1_200mhz>;
 	cd-gpios = <&gpio5 0 0>;
 	wp-gpios = <&gpio4 29 0>;
 	status = "okay";
 };
 
 &usdhc3 {
-	pinctrl-names = "default";
+	pinctrl-names = "default", "state_100mhz", "state_200mhz";
 	pinctrl-0 = <&pinctrl_usdhc3_1>;
+	pinctrl-1 = <&pinctrl_usdhc3_1_100mhz>;
+	pinctrl-2 = <&pinctrl_usdhc3_1_200mhz>;
 	cd-gpios = <&gpio3 22 0>;
 	status = "okay";
 };
diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
index f295290d29fc..e4d6d1efb457 100644
--- a/arch/arm/boot/dts/imx6sl.dtsi
+++ b/arch/arm/boot/dts/imx6sl.dtsi
@@ -639,6 +639,38 @@
 							MX6SL_PAD_SD1_DAT7__SD1_DATA7 0x17059
 						>;
 					};
+
+					pinctrl_usdhc1_1_100mhz: usdhc1grp-1-100mhz {
+						fsl,pins = <
+							MX6SL_PAD_SD1_CMD__SD1_CMD 0x170b9
+							MX6SL_PAD_SD1_CLK__SD1_CLK 0x100b9
+							MX6SL_PAD_SD1_DAT0__SD1_DATA0 0x170b9
+							MX6SL_PAD_SD1_DAT1__SD1_DATA1 0x170b9
+							MX6SL_PAD_SD1_DAT2__SD1_DATA2 0x170b9
+							MX6SL_PAD_SD1_DAT3__SD1_DATA3 0x170b9
+							MX6SL_PAD_SD1_DAT4__SD1_DATA4 0x170b9
+							MX6SL_PAD_SD1_DAT5__SD1_DATA5 0x170b9
+							MX6SL_PAD_SD1_DAT6__SD1_DATA6 0x170b9
+							MX6SL_PAD_SD1_DAT7__SD1_DATA7 0x170b9
+						>;
+					};
+
+					pinctrl_usdhc1_1_200mhz: usdhc1grp-1-200mhz {
+						fsl,pins = <
+							MX6SL_PAD_SD1_CMD__SD1_CMD 0x170f9
+							MX6SL_PAD_SD1_CLK__SD1_CLK 0x100f9
+							MX6SL_PAD_SD1_DAT0__SD1_DATA0 0x170f9
+							MX6SL_PAD_SD1_DAT1__SD1_DATA1 0x170f9
+							MX6SL_PAD_SD1_DAT2__SD1_DATA2 0x170f9
+							MX6SL_PAD_SD1_DAT3__SD1_DATA3 0x170f9
+							MX6SL_PAD_SD1_DAT4__SD1_DATA4 0x170f9
+							MX6SL_PAD_SD1_DAT5__SD1_DATA5 0x170f9
+							MX6SL_PAD_SD1_DAT6__SD1_DATA6 0x170f9
+							MX6SL_PAD_SD1_DAT7__SD1_DATA7 0x170f9
+						>;
+					};
+
+
 				};
 
 				usdhc2 {
@@ -652,6 +684,29 @@
 							MX6SL_PAD_SD2_DAT3__SD2_DATA3 0x17059
 						>;
 					};
+
+					pinctrl_usdhc2_1_100mhz: usdhc2grp-1-100mhz {
+						fsl,pins = <
+							MX6SL_PAD_SD2_CMD__SD2_CMD    0x170b9
+							MX6SL_PAD_SD2_CLK__SD2_CLK    0x100b9
+							MX6SL_PAD_SD2_DAT0__SD2_DATA0 0x170b9
+							MX6SL_PAD_SD2_DAT1__SD2_DATA1 0x170b9
+							MX6SL_PAD_SD2_DAT2__SD2_DATA2 0x170b9
+							MX6SL_PAD_SD2_DAT3__SD2_DATA3 0x170b9
+						>;
+					};
+
+					pinctrl_usdhc2_1_200mhz: usdhc2grp-1-200mhz {
+						fsl,pins = <
+							MX6SL_PAD_SD2_CMD__SD2_CMD    0x170f9
+							MX6SL_PAD_SD2_CLK__SD2_CLK    0x100f9
+							MX6SL_PAD_SD2_DAT0__SD2_DATA0 0x170f9
+							MX6SL_PAD_SD2_DAT1__SD2_DATA1 0x170f9
+							MX6SL_PAD_SD2_DAT2__SD2_DATA2 0x170f9
+							MX6SL_PAD_SD2_DAT3__SD2_DATA3 0x170f9
+						>;
+					};
+
 				};
 
 				usdhc3 {
@@ -665,6 +720,28 @@
 							MX6SL_PAD_SD3_DAT3__SD3_DATA3 0x17059
 						>;
 					};
+
+					pinctrl_usdhc3_1_100mhz: usdhc3grp-1-100mhz {
+						fsl,pins = <
+							MX6SL_PAD_SD3_CMD__SD3_CMD    0x170b9
+							MX6SL_PAD_SD3_CLK__SD3_CLK    0x100b9
+							MX6SL_PAD_SD3_DAT0__SD3_DATA0 0x170b9
+							MX6SL_PAD_SD3_DAT1__SD3_DATA1 0x170b9
+							MX6SL_PAD_SD3_DAT2__SD3_DATA2 0x170b9
+							MX6SL_PAD_SD3_DAT3__SD3_DATA3 0x170b9
+						>;
+					};
+
+					pinctrl_usdhc3_1_200mhz: usdhc3grp-1-200mhz {
+						fsl,pins = <
+							MX6SL_PAD_SD3_CMD__SD3_CMD    0x170f9
+							MX6SL_PAD_SD3_CLK__SD3_CLK    0x100f9
+							MX6SL_PAD_SD3_DAT0__SD3_DATA0 0x170f9
+							MX6SL_PAD_SD3_DAT1__SD3_DATA1 0x170f9
+							MX6SL_PAD_SD3_DAT2__SD3_DATA2 0x170f9
+							MX6SL_PAD_SD3_DAT3__SD3_DATA3 0x170f9
+						>;
+					};
 				};
 			};
 
-- 
cgit 


From f7f8ed5695ef441495cfab5287951927d9d5f12e Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <ordex@autistici.org>
Date: Sun, 12 May 2013 21:51:15 +0200
Subject: batman-adv: h_vlan_encapsulated_proto access refactoring

In case of a VLAN tagged frame the ethhdr pointer is
moved forward by 4 bytes so that the offset of h_proto
in struct ethhdr matches the real
h_vlan_encapsulated_proto address in the skb. While this
trickery is correct it makes the code harder to understand
and may lead to bugs in case of re-use of ethhdr for other
purposes.

This patch introduces a proto variable to make things
cleaner and easier to understand.

Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/gateway_client.c | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index 1bce63aa5f5f..ac97ca7f4ad0 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -655,24 +655,29 @@ bool batadv_gw_is_dhcp_target(struct sk_buff *skb, unsigned int *header_len)
 	struct iphdr *iphdr;
 	struct ipv6hdr *ipv6hdr;
 	struct udphdr *udphdr;
+	struct vlan_ethhdr *vhdr;
+	__be16 proto;
 
 	/* check for ethernet header */
 	if (!pskb_may_pull(skb, *header_len + ETH_HLEN))
 		return false;
 	ethhdr = (struct ethhdr *)skb->data;
+	proto = ethhdr->h_proto;
 	*header_len += ETH_HLEN;
 
 	/* check for initial vlan header */
-	if (ntohs(ethhdr->h_proto) == ETH_P_8021Q) {
+	if (proto == htons(ETH_P_8021Q)) {
 		if (!pskb_may_pull(skb, *header_len + VLAN_HLEN))
 			return false;
-		ethhdr = (struct ethhdr *)(skb->data + VLAN_HLEN);
+
+		vhdr = (struct vlan_ethhdr *)skb->data;
+		proto = vhdr->h_vlan_encapsulated_proto;
 		*header_len += VLAN_HLEN;
 	}
 
 	/* check for ip header */
-	switch (ntohs(ethhdr->h_proto)) {
-	case ETH_P_IP:
+	switch (proto) {
+	case htons(ETH_P_IP):
 		if (!pskb_may_pull(skb, *header_len + sizeof(*iphdr)))
 			return false;
 		iphdr = (struct iphdr *)(skb->data + *header_len);
@@ -683,7 +688,7 @@ bool batadv_gw_is_dhcp_target(struct sk_buff *skb, unsigned int *header_len)
 			return false;
 
 		break;
-	case ETH_P_IPV6:
+	case htons(ETH_P_IPV6):
 		if (!pskb_may_pull(skb, *header_len + sizeof(*ipv6hdr)))
 			return false;
 		ipv6hdr = (struct ipv6hdr *)(skb->data + *header_len);
@@ -710,11 +715,11 @@ bool batadv_gw_is_dhcp_target(struct sk_buff *skb, unsigned int *header_len)
 	*header_len += sizeof(*udphdr);
 
 	/* check for bootp port */
-	if ((ntohs(ethhdr->h_proto) == ETH_P_IP) &&
+	if ((proto == htons(ETH_P_IP)) &&
 	    (ntohs(udphdr->dest) != 67))
 		return false;
 
-	if ((ntohs(ethhdr->h_proto) == ETH_P_IPV6) &&
+	if ((proto == htons(ETH_P_IPV6)) &&
 	    (ntohs(udphdr->dest) != 547))
 		return false;
 
-- 
cgit 


From 2c598663e84c8c8edbbac568e9e94e1fac410c3c Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <ordex@autistici.org>
Date: Sun, 12 May 2013 21:57:09 +0200
Subject: batman-adv: use VLAN_ETH_HLEN instead of sizeof(struct vlan_eth_hdr)

Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/bridge_loop_avoidance.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index 264de88db320..70da18ab41c3 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -1380,7 +1380,7 @@ int batadv_bla_is_backbone_gw(struct sk_buff *skb,
 	ethhdr = (struct ethhdr *)(((uint8_t *)skb->data) + hdr_size);
 
 	if (ntohs(ethhdr->h_proto) == ETH_P_8021Q) {
-		if (!pskb_may_pull(skb, hdr_size + sizeof(struct vlan_ethhdr)))
+		if (!pskb_may_pull(skb, hdr_size + VLAN_ETH_HLEN))
 			return 0;
 
 		vhdr = (struct vlan_ethhdr *)(skb->data + hdr_size);
-- 
cgit 


From f097e25dbe9144447f46b6b61ca3da1a2ba432d4 Mon Sep 17 00:00:00 2001
From: Martin Hundebøll <martin@hundeboll.net>
Date: Thu, 23 May 2013 16:53:01 +0200
Subject: batman-adv: Remove old fragmentation code
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Remove the existing fragmentation code before adding the new version
and delete unicast.{h,c}.

batadv_unicast_send_skb() is moved to send.c and renamed to
batadv_send_skb_unicast().

fragmentation entry in sysfs (bat_priv->fragmentation) is kept for use in
the new fragmentation code.

BATADV_UNICAST_FRAG packet type is renamed to BATADV_FRAG for use in the
new fragmentation code.

Signed-off-by: Martin Hundebøll <martin@hundeboll.net>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/Makefile                |   1 -
 net/batman-adv/distributed-arp-table.c |  11 +-
 net/batman-adv/hard-interface.c        |   1 -
 net/batman-adv/main.c                  |   4 -
 net/batman-adv/originator.c            |   9 -
 net/batman-adv/packet.h                |  16 --
 net/batman-adv/routing.c               |  86 +-----
 net/batman-adv/routing.h               |   2 -
 net/batman-adv/send.c                  | 174 ++++++++++++
 net/batman-adv/send.h                  |  40 +++
 net/batman-adv/soft-interface.c        |   4 +-
 net/batman-adv/types.h                 |  19 --
 net/batman-adv/unicast.c               | 491 ---------------------------------
 net/batman-adv/unicast.h               |  92 ------
 14 files changed, 221 insertions(+), 729 deletions(-)
 delete mode 100644 net/batman-adv/unicast.c
 delete mode 100644 net/batman-adv/unicast.h

diff --git a/net/batman-adv/Makefile b/net/batman-adv/Makefile
index 8ddbfe66d637..f9b465b00555 100644
--- a/net/batman-adv/Makefile
+++ b/net/batman-adv/Makefile
@@ -37,4 +37,3 @@ batman-adv-y += send.o
 batman-adv-y += soft-interface.o
 batman-adv-y += sysfs.o
 batman-adv-y += translation-table.o
-batman-adv-y += unicast.o
diff --git a/net/batman-adv/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c
index f07ec320dc01..99da41290f82 100644
--- a/net/batman-adv/distributed-arp-table.c
+++ b/net/batman-adv/distributed-arp-table.c
@@ -29,7 +29,6 @@
 #include "send.h"
 #include "types.h"
 #include "translation-table.h"
-#include "unicast.h"
 
 static void batadv_dat_purge(struct work_struct *work);
 
@@ -592,9 +591,9 @@ static bool batadv_dat_send_data(struct batadv_priv *bat_priv,
 			goto free_orig;
 
 		tmp_skb = pskb_copy(skb, GFP_ATOMIC);
-		if (!batadv_unicast_4addr_prepare_skb(bat_priv, tmp_skb,
-						      cand[i].orig_node,
-						      packet_subtype)) {
+		if (!batadv_send_skb_prepare_unicast_4addr(bat_priv, tmp_skb,
+							   cand[i].orig_node,
+							   packet_subtype)) {
 			kfree_skb(tmp_skb);
 			goto free_neigh;
 		}
@@ -990,10 +989,10 @@ bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv,
 	 * that a node not using the 4addr packet format doesn't support it.
 	 */
 	if (hdr_size == sizeof(struct batadv_unicast_4addr_packet))
-		err = batadv_unicast_4addr_send_skb(bat_priv, skb_new,
+		err = batadv_send_skb_unicast_4addr(bat_priv, skb_new,
 						    BATADV_P_DAT_CACHE_REPLY);
 	else
-		err = batadv_unicast_send_skb(bat_priv, skb_new);
+		err = batadv_send_skb_unicast(bat_priv, skb_new);
 
 	if (!err) {
 		batadv_inc_counter(bat_priv, BATADV_CNT_DAT_CACHED_REPLY_TX);
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index eeb667112d64..0c8602e5a5c4 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -444,7 +444,6 @@ int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,
 	hard_iface->batman_adv_ptype.dev = hard_iface->net_dev;
 	dev_add_pack(&hard_iface->batman_adv_ptype);
 
-	atomic_set(&hard_iface->frag_seqno, 1);
 	batadv_info(hard_iface->soft_iface, "Adding interface: %s\n",
 		    hard_iface->net_dev->name);
 
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index 8b195e63e70e..8822fad5694e 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -36,7 +36,6 @@
 #include "gateway_client.h"
 #include "bridge_loop_avoidance.h"
 #include "distributed-arp-table.h"
-#include "unicast.h"
 #include "gateway_common.h"
 #include "hash.h"
 #include "bat_algo.h"
@@ -399,7 +398,6 @@ static void batadv_recv_handler_init(void)
 	/* compile time checks for struct member offsets */
 	BUILD_BUG_ON(offsetof(struct batadv_unicast_4addr_packet, src) != 10);
 	BUILD_BUG_ON(offsetof(struct batadv_unicast_packet, dest) != 4);
-	BUILD_BUG_ON(offsetof(struct batadv_unicast_frag_packet, dest) != 4);
 	BUILD_BUG_ON(offsetof(struct batadv_unicast_tvlv_packet, dst) != 4);
 	BUILD_BUG_ON(offsetof(struct batadv_icmp_packet, dst) != 4);
 	BUILD_BUG_ON(offsetof(struct batadv_icmp_packet_rr, dst) != 4);
@@ -412,8 +410,6 @@ static void batadv_recv_handler_init(void)
 	batadv_rx_handler[BATADV_UNICAST_4ADDR] = batadv_recv_unicast_packet;
 	/* unicast packet */
 	batadv_rx_handler[BATADV_UNICAST] = batadv_recv_unicast_packet;
-	/* fragmented unicast packet */
-	batadv_rx_handler[BATADV_UNICAST_FRAG] = batadv_recv_ucast_frag_packet;
 	/* unicast tvlv packet */
 	batadv_rx_handler[BATADV_UNICAST_TVLV] = batadv_recv_unicast_tvlv;
 	/* batman icmp packet */
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index 5d53d2f38377..898b0ce82cc2 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -25,7 +25,6 @@
 #include "routing.h"
 #include "gateway_client.h"
 #include "hard-interface.h"
-#include "unicast.h"
 #include "soft-interface.h"
 #include "bridge_loop_avoidance.h"
 #include "network-coding.h"
@@ -146,7 +145,6 @@ static void batadv_orig_node_free_rcu(struct rcu_head *rcu)
 	/* Free nc_nodes */
 	batadv_nc_purge_orig(orig_node->bat_priv, orig_node, NULL);
 
-	batadv_frag_list_free(&orig_node->frag_list);
 	batadv_tt_global_del_orig(orig_node->bat_priv, orig_node,
 				  "originator timed out");
 
@@ -269,9 +267,6 @@ struct batadv_orig_node *batadv_get_orig_node(struct batadv_priv *bat_priv,
 	size = bat_priv->num_ifaces * sizeof(uint8_t);
 	orig_node->bcast_own_sum = kzalloc(size, GFP_ATOMIC);
 
-	INIT_LIST_HEAD(&orig_node->frag_list);
-	orig_node->last_frag_packet = 0;
-
 	if (!orig_node->bcast_own_sum)
 		goto free_bcast_own;
 
@@ -393,10 +388,6 @@ static void _batadv_purge_orig(struct batadv_priv *bat_priv)
 				batadv_orig_node_free_ref(orig_node);
 				continue;
 			}
-
-			if (batadv_has_timed_out(orig_node->last_frag_packet,
-						 BATADV_FRAG_TIMEOUT))
-				batadv_frag_list_free(&orig_node->frag_list);
 		}
 		spin_unlock_bh(list_lock);
 	}
diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index 4361bae6186a..5e3b1026b509 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -91,12 +91,6 @@ enum batadv_icmp_packettype {
 	BATADV_PARAMETER_PROBLEM       = 12,
 };
 
-/* fragmentation defines */
-enum batadv_unicast_frag_flags {
-	BATADV_UNI_FRAG_HEAD	  = BIT(0),
-	BATADV_UNI_FRAG_LARGETAIL = BIT(1),
-};
-
 /* tt data subtypes */
 #define BATADV_TT_DATA_TYPE_MASK 0x0F
 
@@ -255,16 +249,6 @@ struct batadv_unicast_4addr_packet {
 	 */
 };
 
-struct batadv_unicast_frag_packet {
-	struct batadv_header header;
-	uint8_t  ttvn; /* destination translation table version number */
-	uint8_t  dest[ETH_ALEN];
-	uint8_t  flags;
-	uint8_t  align;
-	uint8_t  orig[ETH_ALEN];
-	__be16   seqno;
-} __packed;
-
 struct batadv_bcast_packet {
 	struct batadv_header header;
 	uint8_t  reserved;
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 0dc1c0e84451..fd2cdbc3ea85 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -25,7 +25,6 @@
 #include "icmp_socket.h"
 #include "translation-table.h"
 #include "originator.h"
-#include "unicast.h"
 #include "bridge_loop_avoidance.h"
 #include "distributed-arp-table.h"
 #include "network-coding.h"
@@ -653,11 +652,9 @@ static int batadv_route_unicast_packet(struct sk_buff *skb,
 {
 	struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
 	struct batadv_orig_node *orig_node = NULL;
-	struct batadv_neigh_node *neigh_node = NULL;
 	struct batadv_unicast_packet *unicast_packet;
 	struct ethhdr *ethhdr = eth_hdr(skb);
 	int res, hdr_len, ret = NET_RX_DROP;
-	struct sk_buff *new_skb;
 
 	unicast_packet = (struct batadv_unicast_packet *)skb->data;
 
@@ -674,46 +671,12 @@ static int batadv_route_unicast_packet(struct sk_buff *skb,
 	if (!orig_node)
 		goto out;
 
-	/* find_router() increases neigh_nodes refcount if found. */
-	neigh_node = batadv_find_router(bat_priv, orig_node, recv_if);
-
-	if (!neigh_node)
-		goto out;
-
 	/* create a copy of the skb, if needed, to modify it. */
 	if (skb_cow(skb, ETH_HLEN) < 0)
 		goto out;
 
-	unicast_packet = (struct batadv_unicast_packet *)skb->data;
-
-	if (unicast_packet->header.packet_type == BATADV_UNICAST &&
-	    atomic_read(&bat_priv->fragmentation) &&
-	    skb->len > neigh_node->if_incoming->net_dev->mtu) {
-		ret = batadv_frag_send_skb(skb, bat_priv,
-					   neigh_node->if_incoming,
-					   neigh_node->addr);
-		goto out;
-	}
-
-	if (unicast_packet->header.packet_type == BATADV_UNICAST_FRAG &&
-	    batadv_frag_can_reassemble(skb,
-				       neigh_node->if_incoming->net_dev->mtu)) {
-		ret = batadv_frag_reassemble_skb(skb, bat_priv, &new_skb);
-
-		if (ret == NET_RX_DROP)
-			goto out;
-
-		/* packet was buffered for late merge */
-		if (!new_skb) {
-			ret = NET_RX_SUCCESS;
-			goto out;
-		}
-
-		skb = new_skb;
-		unicast_packet = (struct batadv_unicast_packet *)skb->data;
-	}
-
 	/* decrement ttl */
+	unicast_packet = (struct batadv_unicast_packet *)skb->data;
 	unicast_packet->header.ttl--;
 
 	switch (unicast_packet->header.packet_type) {
@@ -748,8 +711,6 @@ static int batadv_route_unicast_packet(struct sk_buff *skb,
 	}
 
 out:
-	if (neigh_node)
-		batadv_neigh_node_free_ref(neigh_node);
 	if (orig_node)
 		batadv_orig_node_free_ref(orig_node);
 	return ret;
@@ -1003,51 +964,6 @@ rx_success:
 	return batadv_route_unicast_packet(skb, recv_if);
 }
 
-int batadv_recv_ucast_frag_packet(struct sk_buff *skb,
-				  struct batadv_hard_iface *recv_if)
-{
-	struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
-	struct batadv_unicast_frag_packet *unicast_packet;
-	int hdr_size = sizeof(*unicast_packet);
-	struct sk_buff *new_skb = NULL;
-	int ret;
-
-	if (batadv_check_unicast_packet(bat_priv, skb, hdr_size) < 0)
-		return NET_RX_DROP;
-
-	if (!batadv_check_unicast_ttvn(bat_priv, skb, hdr_size))
-		return NET_RX_DROP;
-
-	unicast_packet = (struct batadv_unicast_frag_packet *)skb->data;
-
-	/* packet for me */
-	if (batadv_is_my_mac(bat_priv, unicast_packet->dest)) {
-		ret = batadv_frag_reassemble_skb(skb, bat_priv, &new_skb);
-
-		if (ret == NET_RX_DROP)
-			return NET_RX_DROP;
-
-		/* packet was buffered for late merge */
-		if (!new_skb)
-			return NET_RX_SUCCESS;
-
-		if (batadv_dat_snoop_incoming_arp_request(bat_priv, new_skb,
-							  hdr_size))
-			goto rx_success;
-		if (batadv_dat_snoop_incoming_arp_reply(bat_priv, new_skb,
-							hdr_size))
-			goto rx_success;
-
-		batadv_interface_rx(recv_if->soft_iface, new_skb, recv_if,
-				    sizeof(struct batadv_unicast_packet), NULL);
-
-rx_success:
-		return NET_RX_SUCCESS;
-	}
-
-	return batadv_route_unicast_packet(skb, recv_if);
-}
-
 /**
  * batadv_recv_unicast_tvlv - receive and process unicast tvlv packets
  * @skb: unicast tvlv packet to process
diff --git a/net/batman-adv/routing.h b/net/batman-adv/routing.h
index ea15fa6302ad..efab583fda02 100644
--- a/net/batman-adv/routing.h
+++ b/net/batman-adv/routing.h
@@ -30,8 +30,6 @@ int batadv_recv_icmp_packet(struct sk_buff *skb,
 			    struct batadv_hard_iface *recv_if);
 int batadv_recv_unicast_packet(struct sk_buff *skb,
 			       struct batadv_hard_iface *recv_if);
-int batadv_recv_ucast_frag_packet(struct sk_buff *skb,
-				  struct batadv_hard_iface *recv_if);
 int batadv_recv_bcast_packet(struct sk_buff *skb,
 			     struct batadv_hard_iface *recv_if);
 int batadv_recv_tt_query(struct sk_buff *skb,
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index 81d69fb97c17..b8356ec067bf 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -25,6 +25,7 @@
 #include "soft-interface.h"
 #include "hard-interface.h"
 #include "gateway_common.h"
+#include "gateway_client.h"
 #include "originator.h"
 #include "network-coding.h"
 
@@ -127,6 +128,179 @@ int batadv_send_skb_to_orig(struct sk_buff *skb,
 	return ret;
 }
 
+/**
+ * batadv_send_skb_push_fill_unicast - extend the buffer and initialize the
+ *  common fields for unicast packets
+ * @skb: the skb carrying the unicast header to initialize
+ * @hdr_size: amount of bytes to push at the beginning of the skb
+ * @orig_node: the destination node
+ *
+ * Returns false if the buffer extension was not possible or true otherwise.
+ */
+static bool
+batadv_send_skb_push_fill_unicast(struct sk_buff *skb, int hdr_size,
+				  struct batadv_orig_node *orig_node)
+{
+	struct batadv_unicast_packet *unicast_packet;
+	uint8_t ttvn = (uint8_t)atomic_read(&orig_node->last_ttvn);
+
+	if (batadv_skb_head_push(skb, hdr_size) < 0)
+		return false;
+
+	unicast_packet = (struct batadv_unicast_packet *)skb->data;
+	unicast_packet->header.version = BATADV_COMPAT_VERSION;
+	/* batman packet type: unicast */
+	unicast_packet->header.packet_type = BATADV_UNICAST;
+	/* set unicast ttl */
+	unicast_packet->header.ttl = BATADV_TTL;
+	/* copy the destination for faster routing */
+	memcpy(unicast_packet->dest, orig_node->orig, ETH_ALEN);
+	/* set the destination tt version number */
+	unicast_packet->ttvn = ttvn;
+
+	return true;
+}
+
+/**
+ * batadv_send_skb_prepare_unicast - encapsulate an skb with a unicast header
+ * @skb: the skb containing the payload to encapsulate
+ * @orig_node: the destination node
+ *
+ * Returns false if the payload could not be encapsulated or true otherwise.
+ */
+static bool batadv_send_skb_prepare_unicast(struct sk_buff *skb,
+					    struct batadv_orig_node *orig_node)
+{
+	size_t uni_size = sizeof(struct batadv_unicast_packet);
+
+	return batadv_send_skb_push_fill_unicast(skb, uni_size, orig_node);
+}
+
+/**
+ * batadv_send_skb_prepare_unicast_4addr - encapsulate an skb with a
+ *  unicast 4addr header
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the skb containing the payload to encapsulate
+ * @orig_node: the destination node
+ * @packet_subtype: the unicast 4addr packet subtype to use
+ *
+ * Returns false if the payload could not be encapsulated or true otherwise.
+ */
+bool batadv_send_skb_prepare_unicast_4addr(struct batadv_priv *bat_priv,
+					   struct sk_buff *skb,
+					   struct batadv_orig_node *orig,
+					   int packet_subtype)
+{
+	struct batadv_hard_iface *primary_if;
+	struct batadv_unicast_4addr_packet *uc_4addr_packet;
+	bool ret = false;
+
+	primary_if = batadv_primary_if_get_selected(bat_priv);
+	if (!primary_if)
+		goto out;
+
+	/* Pull the header space and fill the unicast_packet substructure.
+	 * We can do that because the first member of the uc_4addr_packet
+	 * is of type struct unicast_packet
+	 */
+	if (!batadv_send_skb_push_fill_unicast(skb, sizeof(*uc_4addr_packet),
+					       orig))
+		goto out;
+
+	uc_4addr_packet = (struct batadv_unicast_4addr_packet *)skb->data;
+	uc_4addr_packet->u.header.packet_type = BATADV_UNICAST_4ADDR;
+	memcpy(uc_4addr_packet->src, primary_if->net_dev->dev_addr, ETH_ALEN);
+	uc_4addr_packet->subtype = packet_subtype;
+	uc_4addr_packet->reserved = 0;
+
+	ret = true;
+out:
+	if (primary_if)
+		batadv_hardif_free_ref(primary_if);
+	return ret;
+}
+
+/**
+ * batadv_send_generic_unicast_skb - send an skb as unicast
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: payload to send
+ * @packet_type: the batman unicast packet type to use
+ * @packet_subtype: the unicast 4addr packet subtype (only relevant for unicast
+ *  4addr packets)
+ *
+ * Returns 1 in case of error or 0 otherwise.
+ */
+int batadv_send_skb_generic_unicast(struct batadv_priv *bat_priv,
+				    struct sk_buff *skb, int packet_type,
+				    int packet_subtype)
+{
+	struct ethhdr *ethhdr = (struct ethhdr *)skb->data;
+	struct batadv_unicast_packet *unicast_packet;
+	struct batadv_orig_node *orig_node;
+	struct batadv_neigh_node *neigh_node;
+	int ret = NET_RX_DROP;
+
+	/* get routing information */
+	if (is_multicast_ether_addr(ethhdr->h_dest)) {
+		orig_node = batadv_gw_get_selected_orig(bat_priv);
+		if (orig_node)
+			goto find_router;
+	}
+
+	/* check for tt host - increases orig_node refcount.
+	 * returns NULL in case of AP isolation
+	 */
+	orig_node = batadv_transtable_search(bat_priv, ethhdr->h_source,
+					     ethhdr->h_dest);
+
+find_router:
+	/* find_router():
+	 *  - if orig_node is NULL it returns NULL
+	 *  - increases neigh_nodes refcount if found.
+	 */
+	neigh_node = batadv_find_router(bat_priv, orig_node, NULL);
+
+	if (!neigh_node)
+		goto out;
+
+	switch (packet_type) {
+	case BATADV_UNICAST:
+		batadv_send_skb_prepare_unicast(skb, orig_node);
+		break;
+	case BATADV_UNICAST_4ADDR:
+		batadv_send_skb_prepare_unicast_4addr(bat_priv, skb, orig_node,
+						      packet_subtype);
+		break;
+	default:
+		/* this function supports UNICAST and UNICAST_4ADDR only. It
+		 * should never be invoked with any other packet type
+		 */
+		goto out;
+	}
+
+	unicast_packet = (struct batadv_unicast_packet *)skb->data;
+
+	/* inform the destination node that we are still missing a correct route
+	 * for this client. The destination will receive this packet and will
+	 * try to reroute it because the ttvn contained in the header is less
+	 * than the current one
+	 */
+	if (batadv_tt_global_client_is_roaming(bat_priv, ethhdr->h_dest))
+		unicast_packet->ttvn = unicast_packet->ttvn - 1;
+
+	if (batadv_send_skb_to_orig(skb, orig_node, NULL) != NET_XMIT_DROP)
+		ret = 0;
+
+out:
+	if (neigh_node)
+		batadv_neigh_node_free_ref(neigh_node);
+	if (orig_node)
+		batadv_orig_node_free_ref(orig_node);
+	if (ret == NET_RX_DROP)
+		kfree_skb(skb);
+	return ret;
+}
+
 void batadv_schedule_bat_ogm(struct batadv_hard_iface *hard_iface)
 {
 	struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
diff --git a/net/batman-adv/send.h b/net/batman-adv/send.h
index e7b17880fca4..ad63184a4dd9 100644
--- a/net/batman-adv/send.h
+++ b/net/batman-adv/send.h
@@ -34,5 +34,45 @@ void batadv_send_outstanding_bat_ogm_packet(struct work_struct *work);
 void
 batadv_purge_outstanding_packets(struct batadv_priv *bat_priv,
 				 const struct batadv_hard_iface *hard_iface);
+bool batadv_send_skb_prepare_unicast_4addr(struct batadv_priv *bat_priv,
+					   struct sk_buff *skb,
+					   struct batadv_orig_node *orig_node,
+					   int packet_subtype);
+int batadv_send_skb_generic_unicast(struct batadv_priv *bat_priv,
+				    struct sk_buff *skb, int packet_type,
+				    int packet_subtype);
+
+
+/**
+ * batadv_send_unicast_skb - send the skb encapsulated in a unicast packet
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the payload to send
+ *
+ * Returns 1 in case of error or 0 otherwise.
+ */
+static inline int batadv_send_skb_unicast(struct batadv_priv *bat_priv,
+					  struct sk_buff *skb)
+{
+	return batadv_send_skb_generic_unicast(bat_priv, skb, BATADV_UNICAST,
+					       0);
+}
+
+/**
+ * batadv_send_4addr_unicast_skb - send the skb encapsulated in a unicast 4addr
+ *  packet
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the payload to send
+ * @packet_subtype: the unicast 4addr packet subtype to use
+ *
+ * Returns 1 in case of error or 0 otherwise.
+ */
+static inline int batadv_send_skb_unicast_4addr(struct batadv_priv *bat_priv,
+						struct sk_buff *skb,
+						int packet_subtype)
+{
+	return batadv_send_skb_generic_unicast(bat_priv, skb,
+					       BATADV_UNICAST_4ADDR,
+					       packet_subtype);
+}
 
 #endif /* _NET_BATMAN_ADV_SEND_H_ */
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 25e6004e8e01..504d0bbddc48 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -34,8 +34,6 @@
 #include <linux/ethtool.h>
 #include <linux/etherdevice.h>
 #include <linux/if_vlan.h>
-#include <linux/if_ether.h>
-#include "unicast.h"
 #include "bridge_loop_avoidance.h"
 #include "network-coding.h"
 
@@ -286,7 +284,7 @@ static int batadv_interface_tx(struct sk_buff *skb,
 
 		batadv_dat_snoop_outgoing_arp_reply(bat_priv, skb);
 
-		ret = batadv_unicast_send_skb(bat_priv, skb);
+		ret = batadv_send_skb_unicast(bat_priv, skb);
 		if (ret != 0)
 			goto dropped_freed;
 	}
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 8fbd89d167cd..795a0794ebfb 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -60,7 +60,6 @@ struct batadv_hard_iface_bat_iv {
  * @if_num: identificator of the interface
  * @if_status: status of the interface for batman-adv
  * @net_dev: pointer to the net_device
- * @frag_seqno: last fragment sequence number sent by this interface
  * @num_bcasts: number of payload re-broadcasts on this interface (ARQ)
  * @hardif_obj: kobject of the per interface sysfs "mesh" directory
  * @refcount: number of contexts the object is used
@@ -76,7 +75,6 @@ struct batadv_hard_iface {
 	int16_t if_num;
 	char if_status;
 	struct net_device *net_dev;
-	atomic_t frag_seqno;
 	uint8_t num_bcasts;
 	struct kobject *hardif_obj;
 	atomic_t refcount;
@@ -116,9 +114,6 @@ struct batadv_hard_iface {
  *  last_bcast_seqno)
  * @last_bcast_seqno: last broadcast sequence number received by this host
  * @neigh_list: list of potential next hop neighbor towards this orig node
- * @frag_list: fragmentation buffer list for fragment re-assembly
- * @last_frag_packet: time when last fragmented packet from this node was
- *  received
  * @neigh_list_lock: lock protecting neigh_list, router and bonding_list
  * @hash_entry: hlist node for batadv_priv::orig_hash
  * @bat_priv: pointer to soft_iface this orig node belongs to
@@ -159,8 +154,6 @@ struct batadv_orig_node {
 	DECLARE_BITMAP(bcast_bits, BATADV_TQ_LOCAL_WINDOW_SIZE);
 	uint32_t last_bcast_seqno;
 	struct hlist_head neigh_list;
-	struct list_head frag_list;
-	unsigned long last_frag_packet;
 	/* neigh_list_lock protects: neigh_list, router & bonding_list */
 	spinlock_t neigh_list_lock;
 	struct hlist_node hash_entry;
@@ -873,18 +866,6 @@ struct batadv_forw_packet {
 	struct batadv_hard_iface *if_incoming;
 };
 
-/**
- * struct batadv_frag_packet_list_entry - storage for fragment packet
- * @list: list node for orig_node::frag_list
- * @seqno: sequence number of the fragment
- * @skb: fragment's skb buffer
- */
-struct batadv_frag_packet_list_entry {
-	struct list_head list;
-	uint16_t seqno;
-	struct sk_buff *skb;
-};
-
 /**
  * struct batadv_algo_ops - mesh algorithm callbacks
  * @list: list node for the batadv_algo_list
diff --git a/net/batman-adv/unicast.c b/net/batman-adv/unicast.c
deleted file mode 100644
index 48b31d33ce6b..000000000000
--- a/net/batman-adv/unicast.c
+++ /dev/null
@@ -1,491 +0,0 @@
-/* Copyright (C) 2010-2013 B.A.T.M.A.N. contributors:
- *
- * Andreas Langer
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- */
-
-#include "main.h"
-#include "unicast.h"
-#include "send.h"
-#include "soft-interface.h"
-#include "gateway_client.h"
-#include "originator.h"
-#include "hash.h"
-#include "translation-table.h"
-#include "routing.h"
-#include "hard-interface.h"
-
-
-static struct sk_buff *
-batadv_frag_merge_packet(struct list_head *head,
-			 struct batadv_frag_packet_list_entry *tfp,
-			 struct sk_buff *skb)
-{
-	struct batadv_unicast_frag_packet *up;
-	struct sk_buff *tmp_skb;
-	struct batadv_unicast_packet *unicast_packet;
-	int hdr_len = sizeof(*unicast_packet);
-	int uni_diff = sizeof(*up) - hdr_len;
-	uint8_t *packet_pos;
-
-	up = (struct batadv_unicast_frag_packet *)skb->data;
-	/* set skb to the first part and tmp_skb to the second part */
-	if (up->flags & BATADV_UNI_FRAG_HEAD) {
-		tmp_skb = tfp->skb;
-	} else {
-		tmp_skb = skb;
-		skb = tfp->skb;
-	}
-
-	if (skb_linearize(skb) < 0 || skb_linearize(tmp_skb) < 0)
-		goto err;
-
-	skb_pull(tmp_skb, sizeof(*up));
-	if (pskb_expand_head(skb, 0, tmp_skb->len, GFP_ATOMIC) < 0)
-		goto err;
-
-	/* move free entry to end */
-	tfp->skb = NULL;
-	tfp->seqno = 0;
-	list_move_tail(&tfp->list, head);
-
-	memcpy(skb_put(skb, tmp_skb->len), tmp_skb->data, tmp_skb->len);
-	kfree_skb(tmp_skb);
-
-	memmove(skb->data + uni_diff, skb->data, hdr_len);
-	packet_pos = skb_pull(skb, uni_diff);
-	unicast_packet = (struct batadv_unicast_packet *)packet_pos;
-	unicast_packet->header.packet_type = BATADV_UNICAST;
-
-	return skb;
-
-err:
-	/* free buffered skb, skb will be freed later */
-	kfree_skb(tfp->skb);
-	return NULL;
-}
-
-static void batadv_frag_create_entry(struct list_head *head,
-				     struct sk_buff *skb)
-{
-	struct batadv_frag_packet_list_entry *tfp;
-	struct batadv_unicast_frag_packet *up;
-
-	up = (struct batadv_unicast_frag_packet *)skb->data;
-
-	/* free and oldest packets stand at the end */
-	tfp = list_entry((head)->prev, typeof(*tfp), list);
-	kfree_skb(tfp->skb);
-
-	tfp->seqno = ntohs(up->seqno);
-	tfp->skb = skb;
-	list_move(&tfp->list, head);
-	return;
-}
-
-static int batadv_frag_create_buffer(struct list_head *head)
-{
-	int i;
-	struct batadv_frag_packet_list_entry *tfp;
-
-	for (i = 0; i < BATADV_FRAG_BUFFER_SIZE; i++) {
-		tfp = kmalloc(sizeof(*tfp), GFP_ATOMIC);
-		if (!tfp) {
-			batadv_frag_list_free(head);
-			return -ENOMEM;
-		}
-		tfp->skb = NULL;
-		tfp->seqno = 0;
-		INIT_LIST_HEAD(&tfp->list);
-		list_add(&tfp->list, head);
-	}
-
-	return 0;
-}
-
-static struct batadv_frag_packet_list_entry *
-batadv_frag_search_packet(struct list_head *head,
-			  const struct batadv_unicast_frag_packet *up)
-{
-	struct batadv_frag_packet_list_entry *tfp;
-	struct batadv_unicast_frag_packet *tmp_up = NULL;
-	bool is_head_tmp, is_head;
-	uint16_t search_seqno;
-
-	if (up->flags & BATADV_UNI_FRAG_HEAD)
-		search_seqno = ntohs(up->seqno)+1;
-	else
-		search_seqno = ntohs(up->seqno)-1;
-
-	is_head = up->flags & BATADV_UNI_FRAG_HEAD;
-
-	list_for_each_entry(tfp, head, list) {
-		if (!tfp->skb)
-			continue;
-
-		if (tfp->seqno == ntohs(up->seqno))
-			goto mov_tail;
-
-		tmp_up = (struct batadv_unicast_frag_packet *)tfp->skb->data;
-
-		if (tfp->seqno == search_seqno) {
-			is_head_tmp = tmp_up->flags & BATADV_UNI_FRAG_HEAD;
-			if (is_head_tmp != is_head)
-				return tfp;
-			else
-				goto mov_tail;
-		}
-	}
-	return NULL;
-
-mov_tail:
-	list_move_tail(&tfp->list, head);
-	return NULL;
-}
-
-void batadv_frag_list_free(struct list_head *head)
-{
-	struct batadv_frag_packet_list_entry *pf, *tmp_pf;
-
-	if (!list_empty(head)) {
-		list_for_each_entry_safe(pf, tmp_pf, head, list) {
-			kfree_skb(pf->skb);
-			list_del(&pf->list);
-			kfree(pf);
-		}
-	}
-	return;
-}
-
-/* frag_reassemble_skb():
- * returns NET_RX_DROP if the operation failed - skb is left intact
- * returns NET_RX_SUCCESS if the fragment was buffered (skb_new will be NULL)
- * or the skb could be reassembled (skb_new will point to the new packet and
- * skb was freed)
- */
-int batadv_frag_reassemble_skb(struct sk_buff *skb,
-			       struct batadv_priv *bat_priv,
-			       struct sk_buff **new_skb)
-{
-	struct batadv_orig_node *orig_node;
-	struct batadv_frag_packet_list_entry *tmp_frag_entry;
-	int ret = NET_RX_DROP;
-	struct batadv_unicast_frag_packet *unicast_packet;
-
-	unicast_packet = (struct batadv_unicast_frag_packet *)skb->data;
-	*new_skb = NULL;
-
-	orig_node = batadv_orig_hash_find(bat_priv, unicast_packet->orig);
-	if (!orig_node)
-		goto out;
-
-	orig_node->last_frag_packet = jiffies;
-
-	if (list_empty(&orig_node->frag_list) &&
-	    batadv_frag_create_buffer(&orig_node->frag_list)) {
-		pr_debug("couldn't create frag buffer\n");
-		goto out;
-	}
-
-	tmp_frag_entry = batadv_frag_search_packet(&orig_node->frag_list,
-						   unicast_packet);
-
-	if (!tmp_frag_entry) {
-		batadv_frag_create_entry(&orig_node->frag_list, skb);
-		ret = NET_RX_SUCCESS;
-		goto out;
-	}
-
-	*new_skb = batadv_frag_merge_packet(&orig_node->frag_list,
-					    tmp_frag_entry, skb);
-	/* if not, merge failed */
-	if (*new_skb)
-		ret = NET_RX_SUCCESS;
-
-out:
-	if (orig_node)
-		batadv_orig_node_free_ref(orig_node);
-	return ret;
-}
-
-int batadv_frag_send_skb(struct sk_buff *skb, struct batadv_priv *bat_priv,
-			 struct batadv_hard_iface *hard_iface,
-			 const uint8_t dstaddr[])
-{
-	struct batadv_unicast_packet tmp_uc, *unicast_packet;
-	struct batadv_hard_iface *primary_if;
-	struct sk_buff *frag_skb;
-	struct batadv_unicast_frag_packet *frag1, *frag2;
-	int uc_hdr_len = sizeof(*unicast_packet);
-	int ucf_hdr_len = sizeof(*frag1);
-	int data_len = skb->len - uc_hdr_len;
-	int large_tail = 0, ret = NET_RX_DROP;
-	uint16_t seqno;
-
-	primary_if = batadv_primary_if_get_selected(bat_priv);
-	if (!primary_if)
-		goto dropped;
-
-	frag_skb = dev_alloc_skb(data_len - (data_len / 2) + ucf_hdr_len);
-	if (!frag_skb)
-		goto dropped;
-
-	skb->priority = TC_PRIO_CONTROL;
-	skb_reserve(frag_skb, ucf_hdr_len);
-
-	unicast_packet = (struct batadv_unicast_packet *)skb->data;
-	memcpy(&tmp_uc, unicast_packet, uc_hdr_len);
-	skb_split(skb, frag_skb, data_len / 2 + uc_hdr_len);
-
-	if (batadv_skb_head_push(skb, ucf_hdr_len - uc_hdr_len) < 0 ||
-	    batadv_skb_head_push(frag_skb, ucf_hdr_len) < 0)
-		goto drop_frag;
-
-	frag1 = (struct batadv_unicast_frag_packet *)skb->data;
-	frag2 = (struct batadv_unicast_frag_packet *)frag_skb->data;
-
-	memcpy(frag1, &tmp_uc, sizeof(tmp_uc));
-
-	frag1->header.ttl--;
-	frag1->header.version = BATADV_COMPAT_VERSION;
-	frag1->header.packet_type = BATADV_UNICAST_FRAG;
-
-	memcpy(frag1->orig, primary_if->net_dev->dev_addr, ETH_ALEN);
-	memcpy(frag2, frag1, sizeof(*frag2));
-
-	if (data_len & 1)
-		large_tail = BATADV_UNI_FRAG_LARGETAIL;
-
-	frag1->flags = BATADV_UNI_FRAG_HEAD | large_tail;
-	frag2->flags = large_tail;
-
-	seqno = atomic_add_return(2, &hard_iface->frag_seqno);
-	frag1->seqno = htons(seqno - 1);
-	frag2->seqno = htons(seqno);
-
-	batadv_send_skb_packet(skb, hard_iface, dstaddr);
-	batadv_send_skb_packet(frag_skb, hard_iface, dstaddr);
-	ret = NET_RX_SUCCESS;
-	goto out;
-
-drop_frag:
-	kfree_skb(frag_skb);
-dropped:
-	kfree_skb(skb);
-out:
-	if (primary_if)
-		batadv_hardif_free_ref(primary_if);
-	return ret;
-}
-
-/**
- * batadv_unicast_push_and_fill_skb - extends the buffer and initializes the
- * common fields for unicast packets
- * @skb: packet
- * @hdr_size: amount of bytes to push at the beginning of the skb
- * @orig_node: the destination node
- *
- * Returns false if the buffer extension was not possible or true otherwise
- */
-static bool batadv_unicast_push_and_fill_skb(struct sk_buff *skb, int hdr_size,
-					     struct batadv_orig_node *orig_node)
-{
-	struct batadv_unicast_packet *unicast_packet;
-	uint8_t ttvn = (uint8_t)atomic_read(&orig_node->last_ttvn);
-
-	if (batadv_skb_head_push(skb, hdr_size) < 0)
-		return false;
-
-	unicast_packet = (struct batadv_unicast_packet *)skb->data;
-	unicast_packet->header.version = BATADV_COMPAT_VERSION;
-	/* batman packet type: unicast */
-	unicast_packet->header.packet_type = BATADV_UNICAST;
-	/* set unicast ttl */
-	unicast_packet->header.ttl = BATADV_TTL;
-	/* copy the destination for faster routing */
-	memcpy(unicast_packet->dest, orig_node->orig, ETH_ALEN);
-	/* set the destination tt version number */
-	unicast_packet->ttvn = ttvn;
-
-	return true;
-}
-
-/**
- * batadv_unicast_prepare_skb - encapsulate an skb with a unicast header
- * @skb: the skb containing the payload to encapsulate
- * @orig_node: the destination node
- *
- * Returns false if the payload could not be encapsulated or true otherwise.
- *
- * This call might reallocate skb data.
- */
-static bool batadv_unicast_prepare_skb(struct sk_buff *skb,
-				       struct batadv_orig_node *orig_node)
-{
-	size_t uni_size = sizeof(struct batadv_unicast_packet);
-	return batadv_unicast_push_and_fill_skb(skb, uni_size, orig_node);
-}
-
-/**
- * batadv_unicast_4addr_prepare_skb - encapsulate an skb with a unicast4addr
- * header
- * @bat_priv: the bat priv with all the soft interface information
- * @skb: the skb containing the payload to encapsulate
- * @orig_node: the destination node
- * @packet_subtype: the batman 4addr packet subtype to use
- *
- * Returns false if the payload could not be encapsulated or true otherwise.
- *
- * This call might reallocate skb data.
- */
-bool batadv_unicast_4addr_prepare_skb(struct batadv_priv *bat_priv,
-				      struct sk_buff *skb,
-				      struct batadv_orig_node *orig,
-				      int packet_subtype)
-{
-	struct batadv_hard_iface *primary_if;
-	struct batadv_unicast_4addr_packet *unicast_4addr_packet;
-	bool ret = false;
-
-	primary_if = batadv_primary_if_get_selected(bat_priv);
-	if (!primary_if)
-		goto out;
-
-	/* pull the header space and fill the unicast_packet substructure.
-	 * We can do that because the first member of the unicast_4addr_packet
-	 * is of type struct unicast_packet
-	 */
-	if (!batadv_unicast_push_and_fill_skb(skb,
-					      sizeof(*unicast_4addr_packet),
-					      orig))
-		goto out;
-
-	unicast_4addr_packet = (struct batadv_unicast_4addr_packet *)skb->data;
-	unicast_4addr_packet->u.header.packet_type = BATADV_UNICAST_4ADDR;
-	memcpy(unicast_4addr_packet->src, primary_if->net_dev->dev_addr,
-	       ETH_ALEN);
-	unicast_4addr_packet->subtype = packet_subtype;
-	unicast_4addr_packet->reserved = 0;
-
-	ret = true;
-out:
-	if (primary_if)
-		batadv_hardif_free_ref(primary_if);
-	return ret;
-}
-
-/**
- * batadv_unicast_generic_send_skb - send an skb as unicast
- * @bat_priv: the bat priv with all the soft interface information
- * @skb: payload to send
- * @packet_type: the batman unicast packet type to use
- * @packet_subtype: the batman packet subtype. It is ignored if packet_type is
- *		    not BATADV_UNICAT_4ADDR
- *
- * Returns 1 in case of error or 0 otherwise
- */
-int batadv_unicast_generic_send_skb(struct batadv_priv *bat_priv,
-				    struct sk_buff *skb, int packet_type,
-				    int packet_subtype)
-{
-	struct ethhdr *ethhdr = (struct ethhdr *)skb->data;
-	struct batadv_unicast_packet *unicast_packet;
-	struct batadv_orig_node *orig_node;
-	struct batadv_neigh_node *neigh_node;
-	int data_len = skb->len;
-	int ret = NET_RX_DROP;
-	unsigned int dev_mtu, header_len;
-
-	/* get routing information */
-	if (is_multicast_ether_addr(ethhdr->h_dest)) {
-		orig_node = batadv_gw_get_selected_orig(bat_priv);
-		if (orig_node)
-			goto find_router;
-	}
-
-	/* check for tt host - increases orig_node refcount.
-	 * returns NULL in case of AP isolation
-	 */
-	orig_node = batadv_transtable_search(bat_priv, ethhdr->h_source,
-					     ethhdr->h_dest);
-
-find_router:
-	/* find_router():
-	 *  - if orig_node is NULL it returns NULL
-	 *  - increases neigh_nodes refcount if found.
-	 */
-	neigh_node = batadv_find_router(bat_priv, orig_node, NULL);
-
-	if (!neigh_node)
-		goto out;
-
-	switch (packet_type) {
-	case BATADV_UNICAST:
-		if (!batadv_unicast_prepare_skb(skb, orig_node))
-			goto out;
-
-		header_len = sizeof(struct batadv_unicast_packet);
-		break;
-	case BATADV_UNICAST_4ADDR:
-		if (!batadv_unicast_4addr_prepare_skb(bat_priv, skb, orig_node,
-						      packet_subtype))
-			goto out;
-
-		header_len = sizeof(struct batadv_unicast_4addr_packet);
-		break;
-	default:
-		/* this function supports UNICAST and UNICAST_4ADDR only. It
-		 * should never be invoked with any other packet type
-		 */
-		goto out;
-	}
-
-	ethhdr = (struct ethhdr *)(skb->data + header_len);
-	unicast_packet = (struct batadv_unicast_packet *)skb->data;
-
-	/* inform the destination node that we are still missing a correct route
-	 * for this client. The destination will receive this packet and will
-	 * try to reroute it because the ttvn contained in the header is less
-	 * than the current one
-	 */
-	if (batadv_tt_global_client_is_roaming(bat_priv, ethhdr->h_dest))
-		unicast_packet->ttvn = unicast_packet->ttvn - 1;
-
-	dev_mtu = neigh_node->if_incoming->net_dev->mtu;
-	/* fragmentation mechanism only works for UNICAST (now) */
-	if (packet_type == BATADV_UNICAST &&
-	    atomic_read(&bat_priv->fragmentation) &&
-	    data_len + sizeof(*unicast_packet) > dev_mtu) {
-		/* send frag skb decreases ttl */
-		unicast_packet->header.ttl++;
-		ret = batadv_frag_send_skb(skb, bat_priv,
-					   neigh_node->if_incoming,
-					   neigh_node->addr);
-		goto out;
-	}
-
-	if (batadv_send_skb_to_orig(skb, orig_node, NULL) != NET_XMIT_DROP)
-		ret = 0;
-
-out:
-	if (neigh_node)
-		batadv_neigh_node_free_ref(neigh_node);
-	if (orig_node)
-		batadv_orig_node_free_ref(orig_node);
-	if (ret == NET_RX_DROP)
-		kfree_skb(skb);
-	return ret;
-}
diff --git a/net/batman-adv/unicast.h b/net/batman-adv/unicast.h
deleted file mode 100644
index 429cf8a4a31e..000000000000
--- a/net/batman-adv/unicast.h
+++ /dev/null
@@ -1,92 +0,0 @@
-/* Copyright (C) 2010-2013 B.A.T.M.A.N. contributors:
- *
- * Andreas Langer
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of version 2 of the GNU General Public
- * License as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
- */
-
-#ifndef _NET_BATMAN_ADV_UNICAST_H_
-#define _NET_BATMAN_ADV_UNICAST_H_
-
-#include "packet.h"
-
-#define BATADV_FRAG_TIMEOUT 10000 /* purge frag list entries after time in ms */
-#define BATADV_FRAG_BUFFER_SIZE 6 /* number of list elements in buffer */
-
-int batadv_frag_reassemble_skb(struct sk_buff *skb,
-			       struct batadv_priv *bat_priv,
-			       struct sk_buff **new_skb);
-void batadv_frag_list_free(struct list_head *head);
-int batadv_frag_send_skb(struct sk_buff *skb, struct batadv_priv *bat_priv,
-			 struct batadv_hard_iface *hard_iface,
-			 const uint8_t dstaddr[]);
-bool batadv_unicast_4addr_prepare_skb(struct batadv_priv *bat_priv,
-				      struct sk_buff *skb,
-				      struct batadv_orig_node *orig_node,
-				      int packet_subtype);
-int batadv_unicast_generic_send_skb(struct batadv_priv *bat_priv,
-				    struct sk_buff *skb, int packet_type,
-				    int packet_subtype);
-
-
-/**
- * batadv_unicast_send_skb - send the skb encapsulated in a unicast packet
- * @bat_priv: the bat priv with all the soft interface information
- * @skb: the payload to send
- */
-static inline int batadv_unicast_send_skb(struct batadv_priv *bat_priv,
-					  struct sk_buff *skb)
-{
-	return batadv_unicast_generic_send_skb(bat_priv, skb, BATADV_UNICAST,
-					       0);
-}
-
-/**
- * batadv_unicast_send_skb - send the skb encapsulated in a unicast4addr packet
- * @bat_priv: the bat priv with all the soft interface information
- * @skb: the payload to send
- * @packet_subtype: the batman 4addr packet subtype to use
- */
-static inline int batadv_unicast_4addr_send_skb(struct batadv_priv *bat_priv,
-						struct sk_buff *skb,
-						int packet_subtype)
-{
-	return batadv_unicast_generic_send_skb(bat_priv, skb,
-					       BATADV_UNICAST_4ADDR,
-					       packet_subtype);
-}
-
-static inline int batadv_frag_can_reassemble(const struct sk_buff *skb, int mtu)
-{
-	const struct batadv_unicast_frag_packet *unicast_packet;
-	int uneven_correction = 0;
-	unsigned int merged_size;
-
-	unicast_packet = (struct batadv_unicast_frag_packet *)skb->data;
-
-	if (unicast_packet->flags & BATADV_UNI_FRAG_LARGETAIL) {
-		if (unicast_packet->flags & BATADV_UNI_FRAG_HEAD)
-			uneven_correction = 1;
-		else
-			uneven_correction = -1;
-	}
-
-	merged_size = (skb->len - sizeof(*unicast_packet)) * 2;
-	merged_size += sizeof(struct batadv_unicast_packet) + uneven_correction;
-
-	return merged_size <= mtu;
-}
-
-#endif /* _NET_BATMAN_ADV_UNICAST_H_ */
-- 
cgit 


From 610bfc6bc99bc83680d190ebc69359a05fc7f605 Mon Sep 17 00:00:00 2001
From: Martin Hundebøll <martin@hundeboll.net>
Date: Thu, 23 May 2013 16:53:02 +0200
Subject: batman-adv: Receive fragmented packets and merge
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Fragments arriving at their destination are buffered for later merge.
Merged packets are passed to the main receive function as had they never
been fragmented.

Fragments are forwarded without merging if the MTU of the outgoing
interface is smaller than the size of the merged packet.

Signed-off-by: Martin Hundebøll <martin@hundeboll.net>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/Makefile         |   1 +
 net/batman-adv/fragmentation.c  | 370 ++++++++++++++++++++++++++++++++++++++++
 net/batman-adv/fragmentation.h  |  47 +++++
 net/batman-adv/main.c           |   4 +
 net/batman-adv/main.h           |   9 +
 net/batman-adv/originator.c     |  14 +-
 net/batman-adv/packet.h         |  27 +++
 net/batman-adv/routing.c        |  59 +++++++
 net/batman-adv/routing.h        |   2 +
 net/batman-adv/soft-interface.c |   4 +
 net/batman-adv/types.h          |  38 +++++
 11 files changed, 574 insertions(+), 1 deletion(-)
 create mode 100644 net/batman-adv/fragmentation.c
 create mode 100644 net/batman-adv/fragmentation.h

diff --git a/net/batman-adv/Makefile b/net/batman-adv/Makefile
index f9b465b00555..4f4aabbd8eab 100644
--- a/net/batman-adv/Makefile
+++ b/net/batman-adv/Makefile
@@ -24,6 +24,7 @@ batman-adv-y += bitarray.o
 batman-adv-$(CONFIG_BATMAN_ADV_BLA) += bridge_loop_avoidance.o
 batman-adv-y += debugfs.o
 batman-adv-$(CONFIG_BATMAN_ADV_DAT) += distributed-arp-table.o
+batman-adv-y += fragmentation.o
 batman-adv-y += gateway_client.o
 batman-adv-y += gateway_common.o
 batman-adv-y += hard-interface.o
diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c
new file mode 100644
index 000000000000..c829d3cee89c
--- /dev/null
+++ b/net/batman-adv/fragmentation.c
@@ -0,0 +1,370 @@
+/* Copyright (C) 2013 B.A.T.M.A.N. contributors:
+ *
+ * Martin Hundebøll <martin@hundeboll.net>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+#include "main.h"
+#include "fragmentation.h"
+#include "send.h"
+#include "originator.h"
+#include "routing.h"
+#include "hard-interface.h"
+#include "soft-interface.h"
+
+
+/**
+ * batadv_frag_clear_chain - delete entries in the fragment buffer chain
+ * @head: head of chain with entries.
+ *
+ * Free fragments in the passed hlist. Should be called with appropriate lock.
+ */
+static void batadv_frag_clear_chain(struct hlist_head *head)
+{
+	struct batadv_frag_list_entry *entry;
+	struct hlist_node *node;
+
+	hlist_for_each_entry_safe(entry, node, head, list) {
+		hlist_del(&entry->list);
+		kfree_skb(entry->skb);
+		kfree(entry);
+	}
+}
+
+/**
+ * batadv_frag_purge_orig - free fragments associated to an orig
+ * @orig_node: originator to free fragments from
+ * @check_cb: optional function to tell if an entry should be purged
+ */
+void batadv_frag_purge_orig(struct batadv_orig_node *orig_node,
+			    bool (*check_cb)(struct batadv_frag_table_entry *))
+{
+	struct batadv_frag_table_entry *chain;
+	uint8_t i;
+
+	for (i = 0; i < BATADV_FRAG_BUFFER_COUNT; i++) {
+		chain = &orig_node->fragments[i];
+		spin_lock_bh(&orig_node->fragments[i].lock);
+
+		if (!check_cb || check_cb(chain)) {
+			batadv_frag_clear_chain(&orig_node->fragments[i].head);
+			orig_node->fragments[i].size = 0;
+		}
+
+		spin_unlock_bh(&orig_node->fragments[i].lock);
+	}
+}
+
+/**
+ * batadv_frag_size_limit - maximum possible size of packet to be fragmented
+ *
+ * Returns the maximum size of payload that can be fragmented.
+ */
+static int batadv_frag_size_limit(void)
+{
+	int limit = BATADV_FRAG_MAX_FRAG_SIZE;
+
+	limit -= sizeof(struct batadv_frag_packet);
+	limit *= BATADV_FRAG_MAX_FRAGMENTS;
+
+	return limit;
+}
+
+/**
+ * batadv_frag_init_chain - check and prepare fragment chain for new fragment
+ * @chain: chain in fragments table to init
+ * @seqno: sequence number of the received fragment
+ *
+ * Make chain ready for a fragment with sequence number "seqno". Delete existing
+ * entries if they have an "old" sequence number.
+ *
+ * Caller must hold chain->lock.
+ *
+ * Returns true if chain is empty and caller can just insert the new fragment
+ * without searching for the right position.
+ */
+static bool batadv_frag_init_chain(struct batadv_frag_table_entry *chain,
+				   uint16_t seqno)
+{
+	if (chain->seqno == seqno)
+		return false;
+
+	if (!hlist_empty(&chain->head))
+		batadv_frag_clear_chain(&chain->head);
+
+	chain->size = 0;
+	chain->seqno = seqno;
+
+	return true;
+}
+
+/**
+ * batadv_frag_insert_packet - insert a fragment into a fragment chain
+ * @orig_node: originator that the fragment was received from
+ * @skb: skb to insert
+ * @chain_out: list head to attach complete chains of fragments to
+ *
+ * Insert a new fragment into the reverse ordered chain in the right table
+ * entry. The hash table entry is cleared if "old" fragments exist in it.
+ *
+ * Returns true if skb is buffered, false on error. If the chain has all the
+ * fragments needed to merge the packet, the chain is moved to the passed head
+ * to avoid locking the chain in the table.
+ */
+static bool batadv_frag_insert_packet(struct batadv_orig_node *orig_node,
+				      struct sk_buff *skb,
+				      struct hlist_head *chain_out)
+{
+	struct batadv_frag_table_entry *chain;
+	struct batadv_frag_list_entry *frag_entry_new = NULL, *frag_entry_curr;
+	struct batadv_frag_packet *frag_packet;
+	uint8_t bucket;
+	uint16_t seqno, hdr_size = sizeof(struct batadv_frag_packet);
+	bool ret = false;
+
+	/* Linearize packet to avoid linearizing 16 packets in a row when doing
+	 * the later merge. Non-linear merge should be added to remove this
+	 * linearization.
+	 */
+	if (skb_linearize(skb) < 0)
+		goto err;
+
+	frag_packet = (struct batadv_frag_packet *)skb->data;
+	seqno = ntohs(frag_packet->seqno);
+	bucket = seqno % BATADV_FRAG_BUFFER_COUNT;
+
+	frag_entry_new = kmalloc(sizeof(*frag_entry_new), GFP_ATOMIC);
+	if (!frag_entry_new)
+		goto err;
+
+	frag_entry_new->skb = skb;
+	frag_entry_new->no = frag_packet->no;
+
+	/* Select entry in the "chain table" and delete any prior fragments
+	 * with another sequence number. batadv_frag_init_chain() returns true,
+	 * if the list is empty at return.
+	 */
+	chain = &orig_node->fragments[bucket];
+	spin_lock_bh(&chain->lock);
+	if (batadv_frag_init_chain(chain, seqno)) {
+		hlist_add_head(&frag_entry_new->list, &chain->head);
+		chain->size = skb->len - hdr_size;
+		chain->timestamp = jiffies;
+		ret = true;
+		goto out;
+	}
+
+	/* Find the position for the new fragment. */
+	hlist_for_each_entry(frag_entry_curr, &chain->head, list) {
+		/* Drop packet if fragment already exists. */
+		if (frag_entry_curr->no == frag_entry_new->no)
+			goto err_unlock;
+
+		/* Order fragments from highest to lowest. */
+		if (frag_entry_curr->no < frag_entry_new->no) {
+			hlist_add_before(&frag_entry_new->list,
+					 &frag_entry_curr->list);
+			chain->size += skb->len - hdr_size;
+			chain->timestamp = jiffies;
+			ret = true;
+			goto out;
+		}
+	}
+
+	/* Reached the end of the list, so insert after 'frag_entry_curr'. */
+	if (likely(frag_entry_curr)) {
+		hlist_add_after(&frag_entry_curr->list, &frag_entry_new->list);
+		chain->size += skb->len - hdr_size;
+		chain->timestamp = jiffies;
+		ret = true;
+	}
+
+out:
+	if (chain->size > batadv_frag_size_limit() ||
+	    ntohs(frag_packet->total_size) > batadv_frag_size_limit()) {
+		/* Clear chain if total size of either the list or the packet
+		 * exceeds the maximum size of one merged packet.
+		 */
+		batadv_frag_clear_chain(&chain->head);
+		chain->size = 0;
+	} else if (ntohs(frag_packet->total_size) == chain->size) {
+		/* All fragments received. Hand over chain to caller. */
+		hlist_move_list(&chain->head, chain_out);
+		chain->size = 0;
+	}
+
+err_unlock:
+	spin_unlock_bh(&chain->lock);
+
+err:
+	if (!ret)
+		kfree(frag_entry_new);
+
+	return ret;
+}
+
+/**
+ * batadv_frag_merge_packets - merge a chain of fragments
+ * @chain: head of chain with fragments
+ * @skb: packet with total size of skb after merging
+ *
+ * Expand the first skb in the chain and copy the content of the remaining
+ * skb's into the expanded one. After doing so, clear the chain.
+ *
+ * Returns the merged skb or NULL on error.
+ */
+static struct sk_buff *
+batadv_frag_merge_packets(struct hlist_head *chain, struct sk_buff *skb)
+{
+	struct batadv_frag_packet *packet;
+	struct batadv_frag_list_entry *entry;
+	struct sk_buff *skb_out = NULL;
+	int size, hdr_size = sizeof(struct batadv_frag_packet);
+
+	/* Make sure incoming skb has non-bogus data. */
+	packet = (struct batadv_frag_packet *)skb->data;
+	size = ntohs(packet->total_size);
+	if (size > batadv_frag_size_limit())
+		goto free;
+
+	/* Remove first entry, as this is the destination for the rest of the
+	 * fragments.
+	 */
+	entry = hlist_entry(chain->first, struct batadv_frag_list_entry, list);
+	hlist_del(&entry->list);
+	skb_out = entry->skb;
+	kfree(entry);
+
+	/* Make room for the rest of the fragments. */
+	if (pskb_expand_head(skb_out, 0, size - skb->len, GFP_ATOMIC) < 0) {
+		kfree_skb(skb_out);
+		skb_out = NULL;
+		goto free;
+	}
+
+	/* Move the existing MAC header to just before the payload. (Override
+	 * the fragment header.)
+	 */
+	skb_pull_rcsum(skb_out, hdr_size);
+	memmove(skb_out->data - ETH_HLEN, skb_mac_header(skb_out), ETH_HLEN);
+	skb_set_mac_header(skb_out, -ETH_HLEN);
+	skb_reset_network_header(skb_out);
+	skb_reset_transport_header(skb_out);
+
+	/* Copy the payload of the each fragment into the last skb */
+	hlist_for_each_entry(entry, chain, list) {
+		size = entry->skb->len - hdr_size;
+		memcpy(skb_put(skb_out, size), entry->skb->data + hdr_size,
+		       size);
+	}
+
+free:
+	/* Locking is not needed, because 'chain' is not part of any orig. */
+	batadv_frag_clear_chain(chain);
+	return skb_out;
+}
+
+/**
+ * batadv_frag_skb_buffer - buffer fragment for later merge
+ * @skb: skb to buffer
+ * @orig_node_src: originator that the skb is received from
+ *
+ * Add fragment to buffer and merge fragments if possible.
+ *
+ * There are three possible outcomes: 1) Packet is merged: Return true and
+ * set *skb to merged packet; 2) Packet is buffered: Return true and set *skb
+ * to NULL; 3) Error: Return false and leave skb as is.
+ */
+bool batadv_frag_skb_buffer(struct sk_buff **skb,
+			    struct batadv_orig_node *orig_node_src)
+{
+	struct sk_buff *skb_out = NULL;
+	struct hlist_head head = HLIST_HEAD_INIT;
+	bool ret = false;
+
+	/* Add packet to buffer and table entry if merge is possible. */
+	if (!batadv_frag_insert_packet(orig_node_src, *skb, &head))
+		goto out_err;
+
+	/* Leave if more fragments are needed to merge. */
+	if (hlist_empty(&head))
+		goto out;
+
+	skb_out = batadv_frag_merge_packets(&head, *skb);
+	if (!skb_out)
+		goto out_err;
+
+out:
+	*skb = skb_out;
+	ret = true;
+out_err:
+	return ret;
+}
+
+/**
+ * batadv_frag_skb_fwd - forward fragments that would exceed MTU when merged
+ * @skb: skb to forward
+ * @recv_if: interface that the skb is received on
+ * @orig_node_src: originator that the skb is received from
+ *
+ * Look up the next-hop of the fragments payload and check if the merged packet
+ * will exceed the MTU towards the next-hop. If so, the fragment is forwarded
+ * without merging it.
+ *
+ * Returns true if the fragment is consumed/forwarded, false otherwise.
+ */
+bool batadv_frag_skb_fwd(struct sk_buff *skb,
+			 struct batadv_hard_iface *recv_if,
+			 struct batadv_orig_node *orig_node_src)
+{
+	struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
+	struct batadv_orig_node *orig_node_dst = NULL;
+	struct batadv_neigh_node *neigh_node = NULL;
+	struct batadv_frag_packet *packet;
+	uint16_t total_size;
+	bool ret = false;
+
+	packet = (struct batadv_frag_packet *)skb->data;
+	orig_node_dst = batadv_orig_hash_find(bat_priv, packet->dest);
+	if (!orig_node_dst)
+		goto out;
+
+	neigh_node = batadv_find_router(bat_priv, orig_node_dst, recv_if);
+	if (!neigh_node)
+		goto out;
+
+	/* Forward the fragment, if the merged packet would be too big to
+	 * be assembled.
+	 */
+	total_size = ntohs(packet->total_size);
+	if (total_size > neigh_node->if_incoming->net_dev->mtu) {
+		batadv_inc_counter(bat_priv, BATADV_CNT_FRAG_FWD);
+		batadv_add_counter(bat_priv, BATADV_CNT_FRAG_FWD_BYTES,
+				   skb->len + ETH_HLEN);
+
+		packet->header.ttl--;
+		batadv_send_skb_packet(skb, neigh_node->if_incoming,
+				       neigh_node->addr);
+		ret = true;
+	}
+
+out:
+	if (orig_node_dst)
+		batadv_orig_node_free_ref(orig_node_dst);
+	if (neigh_node)
+		batadv_neigh_node_free_ref(neigh_node);
+	return ret;
+}
diff --git a/net/batman-adv/fragmentation.h b/net/batman-adv/fragmentation.h
new file mode 100644
index 000000000000..883a6f46005e
--- /dev/null
+++ b/net/batman-adv/fragmentation.h
@@ -0,0 +1,47 @@
+/* Copyright (C) 2013 B.A.T.M.A.N. contributors:
+ *
+ * Martin Hundebøll <martin@hundeboll.net>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA
+ */
+
+#ifndef _NET_BATMAN_ADV_FRAGMENTATION_H_
+#define _NET_BATMAN_ADV_FRAGMENTATION_H_
+
+void batadv_frag_purge_orig(struct batadv_orig_node *orig,
+			    bool (*check_cb)(struct batadv_frag_table_entry *));
+bool batadv_frag_skb_fwd(struct sk_buff *skb,
+			 struct batadv_hard_iface *recv_if,
+			 struct batadv_orig_node *orig_node_src);
+bool batadv_frag_skb_buffer(struct sk_buff **skb,
+			    struct batadv_orig_node *orig_node);
+
+/**
+ * batadv_frag_check_entry - check if a list of fragments has timed out
+ * @frags_entry: table entry to check
+ *
+ * Returns true if the frags entry has timed out, false otherwise.
+ */
+static inline bool
+batadv_frag_check_entry(struct batadv_frag_table_entry *frags_entry)
+{
+	if (!hlist_empty(&frags_entry->head) &&
+	    batadv_has_timed_out(frags_entry->timestamp, BATADV_FRAG_TIMEOUT))
+		return true;
+	else
+		return false;
+}
+
+#endif /* _NET_BATMAN_ADV_FRAGMENTATION_H_ */
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index 8822fad5694e..ca6f1340d70c 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -40,6 +40,7 @@
 #include "hash.h"
 #include "bat_algo.h"
 #include "network-coding.h"
+#include "fragmentation.h"
 
 
 /* List manipulations on hardif_list have to be rtnl_lock()'ed,
@@ -399,6 +400,7 @@ static void batadv_recv_handler_init(void)
 	BUILD_BUG_ON(offsetof(struct batadv_unicast_4addr_packet, src) != 10);
 	BUILD_BUG_ON(offsetof(struct batadv_unicast_packet, dest) != 4);
 	BUILD_BUG_ON(offsetof(struct batadv_unicast_tvlv_packet, dst) != 4);
+	BUILD_BUG_ON(offsetof(struct batadv_frag_packet, dest) != 4);
 	BUILD_BUG_ON(offsetof(struct batadv_icmp_packet, dst) != 4);
 	BUILD_BUG_ON(offsetof(struct batadv_icmp_packet_rr, dst) != 4);
 
@@ -414,6 +416,8 @@ static void batadv_recv_handler_init(void)
 	batadv_rx_handler[BATADV_UNICAST_TVLV] = batadv_recv_unicast_tvlv;
 	/* batman icmp packet */
 	batadv_rx_handler[BATADV_ICMP] = batadv_recv_icmp_packet;
+	/* Fragmented packets */
+	batadv_rx_handler[BATADV_UNICAST_FRAG] = batadv_recv_frag_packet;
 }
 
 int
diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index e11c2ec7a739..6a74a4225326 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -131,6 +131,15 @@ enum batadv_uev_type {
 
 #define BATADV_GW_THRESHOLD	50
 
+/* Number of fragment chains for each orig_node */
+#define BATADV_FRAG_BUFFER_COUNT 8
+/* Maximum number of fragments for one packet */
+#define BATADV_FRAG_MAX_FRAGMENTS 16
+/* Maxumim size of each fragment */
+#define BATADV_FRAG_MAX_FRAG_SIZE 1400
+/* Time to keep fragments while waiting for rest of the fragments */
+#define BATADV_FRAG_TIMEOUT 10000
+
 #define BATADV_DAT_CANDIDATE_NOT_FOUND	0
 #define BATADV_DAT_CANDIDATE_ORIG	1
 
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index 898b0ce82cc2..a591dc5c321e 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -28,6 +28,7 @@
 #include "soft-interface.h"
 #include "bridge_loop_avoidance.h"
 #include "network-coding.h"
+#include "fragmentation.h"
 
 /* hash class keys */
 static struct lock_class_key batadv_orig_hash_lock_class_key;
@@ -145,6 +146,8 @@ static void batadv_orig_node_free_rcu(struct rcu_head *rcu)
 	/* Free nc_nodes */
 	batadv_nc_purge_orig(orig_node->bat_priv, orig_node, NULL);
 
+	batadv_frag_purge_orig(orig_node, NULL);
+
 	batadv_tt_global_del_orig(orig_node->bat_priv, orig_node,
 				  "originator timed out");
 
@@ -215,7 +218,7 @@ struct batadv_orig_node *batadv_get_orig_node(struct batadv_priv *bat_priv,
 					      const uint8_t *addr)
 {
 	struct batadv_orig_node *orig_node;
-	int size;
+	int size, i;
 	int hash_added;
 	unsigned long reset_time;
 
@@ -267,6 +270,12 @@ struct batadv_orig_node *batadv_get_orig_node(struct batadv_priv *bat_priv,
 	size = bat_priv->num_ifaces * sizeof(uint8_t);
 	orig_node->bcast_own_sum = kzalloc(size, GFP_ATOMIC);
 
+	for (i = 0; i < BATADV_FRAG_BUFFER_COUNT; i++) {
+		INIT_HLIST_HEAD(&orig_node->fragments[i].head);
+		spin_lock_init(&orig_node->fragments[i].lock);
+		orig_node->fragments[i].size = 0;
+	}
+
 	if (!orig_node->bcast_own_sum)
 		goto free_bcast_own;
 
@@ -388,6 +397,9 @@ static void _batadv_purge_orig(struct batadv_priv *bat_priv)
 				batadv_orig_node_free_ref(orig_node);
 				continue;
 			}
+
+			batadv_frag_purge_orig(orig_node,
+					       batadv_frag_check_entry);
 		}
 		spin_unlock_bh(list_lock);
 	}
diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index 5e3b1026b509..aa46c2778ad8 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -249,6 +249,33 @@ struct batadv_unicast_4addr_packet {
 	 */
 };
 
+/**
+ * struct batadv_frag_packet - fragmented packet
+ * @header: common batman packet header with type, compatversion, and ttl
+ * @dest: final destination used when routing fragments
+ * @orig: originator of the fragment used when merging the packet
+ * @no: fragment number within this sequence
+ * @reserved: reserved byte for alignment
+ * @seqno: sequence identification
+ * @total_size: size of the merged packet
+ */
+struct batadv_frag_packet {
+	struct  batadv_header header;
+#if defined(__BIG_ENDIAN_BITFIELD)
+	uint8_t no:4;
+	uint8_t reserved:4;
+#elif defined(__LITTLE_ENDIAN_BITFIELD)
+	uint8_t reserved:4;
+	uint8_t no:4;
+#else
+#error "unknown bitfield endianess"
+#endif
+	uint8_t dest[ETH_ALEN];
+	uint8_t orig[ETH_ALEN];
+	__be16  seqno;
+	__be16  total_size;
+};
+
 struct batadv_bcast_packet {
 	struct batadv_header header;
 	uint8_t  reserved;
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index fd2cdbc3ea85..a080f63b3ef6 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -28,6 +28,7 @@
 #include "bridge_loop_avoidance.h"
 #include "distributed-arp-table.h"
 #include "network-coding.h"
+#include "fragmentation.h"
 
 static int batadv_route_unicast_packet(struct sk_buff *skb,
 				       struct batadv_hard_iface *recv_if);
@@ -1013,6 +1014,64 @@ int batadv_recv_unicast_tvlv(struct sk_buff *skb,
 	return ret;
 }
 
+/**
+ * batadv_recv_frag_packet - process received fragment
+ * @skb: the received fragment
+ * @recv_if: interface that the skb is received on
+ *
+ * This function does one of the three following things: 1) Forward fragment, if
+ * the assembled packet will exceed our MTU; 2) Buffer fragment, if we till
+ * lack further fragments; 3) Merge fragments, if we have all needed parts.
+ *
+ * Return NET_RX_DROP if the skb is not consumed, NET_RX_SUCCESS otherwise.
+ */
+int batadv_recv_frag_packet(struct sk_buff *skb,
+			    struct batadv_hard_iface *recv_if)
+{
+	struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
+	struct batadv_orig_node *orig_node_src = NULL;
+	struct batadv_frag_packet *frag_packet;
+	int ret = NET_RX_DROP;
+
+	if (batadv_check_unicast_packet(bat_priv, skb,
+					sizeof(*frag_packet)) < 0)
+		goto out;
+
+	frag_packet = (struct batadv_frag_packet *)skb->data;
+	orig_node_src = batadv_orig_hash_find(bat_priv, frag_packet->orig);
+	if (!orig_node_src)
+		goto out;
+
+	/* Route the fragment if it is not for us and too big to be merged. */
+	if (!batadv_is_my_mac(bat_priv, frag_packet->dest) &&
+	    batadv_frag_skb_fwd(skb, recv_if, orig_node_src)) {
+		ret = NET_RX_SUCCESS;
+		goto out;
+	}
+
+	batadv_inc_counter(bat_priv, BATADV_CNT_FRAG_RX);
+	batadv_add_counter(bat_priv, BATADV_CNT_FRAG_RX_BYTES, skb->len);
+
+	/* Add fragment to buffer and merge if possible. */
+	if (!batadv_frag_skb_buffer(&skb, orig_node_src))
+		goto out;
+
+	/* Deliver merged packet to the appropriate handler, if it was
+	 * merged
+	 */
+	if (skb)
+		batadv_batman_skb_recv(skb, recv_if->net_dev,
+				       &recv_if->batman_adv_ptype, NULL);
+
+	ret = NET_RX_SUCCESS;
+
+out:
+	if (orig_node_src)
+		batadv_orig_node_free_ref(orig_node_src);
+
+	return ret;
+}
+
 int batadv_recv_bcast_packet(struct sk_buff *skb,
 			     struct batadv_hard_iface *recv_if)
 {
diff --git a/net/batman-adv/routing.h b/net/batman-adv/routing.h
index efab583fda02..55d637a90621 100644
--- a/net/batman-adv/routing.h
+++ b/net/batman-adv/routing.h
@@ -30,6 +30,8 @@ int batadv_recv_icmp_packet(struct sk_buff *skb,
 			    struct batadv_hard_iface *recv_if);
 int batadv_recv_unicast_packet(struct sk_buff *skb,
 			       struct batadv_hard_iface *recv_if);
+int batadv_recv_frag_packet(struct sk_buff *skb,
+			    struct batadv_hard_iface *iface);
 int batadv_recv_bcast_packet(struct sk_buff *skb,
 			     struct batadv_hard_iface *recv_if);
 int batadv_recv_tt_query(struct sk_buff *skb,
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 504d0bbddc48..dd189e6bf05a 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -758,6 +758,10 @@ static const struct {
 	{ "mgmt_tx_bytes" },
 	{ "mgmt_rx" },
 	{ "mgmt_rx_bytes" },
+	{ "frag_rx" },
+	{ "frag_rx_bytes" },
+	{ "frag_fwd" },
+	{ "frag_fwd_bytes" },
 	{ "tt_request_tx" },
 	{ "tt_request_rx" },
 	{ "tt_response_tx" },
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 795a0794ebfb..5a2cc7a9a620 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -85,6 +85,34 @@ struct batadv_hard_iface {
 	struct work_struct cleanup_work;
 };
 
+/**
+ * struct batadv_frag_table_entry - head in the fragment buffer table
+ * @head: head of list with fragments
+ * @lock: lock to protect the list of fragments
+ * @timestamp: time (jiffie) of last received fragment
+ * @seqno: sequence number of the fragments in the list
+ * @size: accumulated size of packets in list
+ */
+struct batadv_frag_table_entry {
+	struct hlist_head head;
+	spinlock_t lock; /* protects head */
+	unsigned long timestamp;
+	uint16_t seqno;
+	uint16_t size;
+};
+
+/**
+ * struct batadv_frag_list_entry - entry in a list of fragments
+ * @list: list node information
+ * @skb: fragment
+ * @no: fragment number in the set
+ */
+struct batadv_frag_list_entry {
+	struct hlist_node list;
+	struct sk_buff *skb;
+	uint8_t no;
+};
+
 /**
  * struct batadv_orig_node - structure for orig_list maintaining nodes of mesh
  * @orig: originator ethernet address
@@ -128,6 +156,7 @@ struct batadv_hard_iface {
  * @out_coding_list: list of nodes that can hear this orig
  * @in_coding_list_lock: protects in_coding_list
  * @out_coding_list_lock: protects out_coding_list
+ * @fragments: array with heads for fragment chains
  */
 struct batadv_orig_node {
 	uint8_t orig[ETH_ALEN];
@@ -174,6 +203,7 @@ struct batadv_orig_node {
 	spinlock_t in_coding_list_lock; /* Protects in_coding_list */
 	spinlock_t out_coding_list_lock; /* Protects out_coding_list */
 #endif
+	struct batadv_frag_table_entry fragments[BATADV_FRAG_BUFFER_COUNT];
 };
 
 /**
@@ -270,6 +300,10 @@ struct batadv_bcast_duplist_entry {
  * @BATADV_CNT_MGMT_TX_BYTES: transmitted routing protocol traffic bytes counter
  * @BATADV_CNT_MGMT_RX: received routing protocol traffic packet counter
  * @BATADV_CNT_MGMT_RX_BYTES: received routing protocol traffic bytes counter
+ * @BATADV_CNT_FRAG_RX: received fragment traffic packet counter
+ * @BATADV_CNT_FRAG_RX_BYTES: received fragment traffic bytes counter
+ * @BATADV_CNT_FRAG_FWD: forwarded fragment traffic packet counter
+ * @BATADV_CNT_FRAG_FWD_BYTES: forwarded fragment traffic bytes counter
  * @BATADV_CNT_TT_REQUEST_TX: transmitted tt req traffic packet counter
  * @BATADV_CNT_TT_REQUEST_RX: received tt req traffic packet counter
  * @BATADV_CNT_TT_RESPONSE_TX: transmitted tt resp traffic packet counter
@@ -307,6 +341,10 @@ enum batadv_counters {
 	BATADV_CNT_MGMT_TX_BYTES,
 	BATADV_CNT_MGMT_RX,
 	BATADV_CNT_MGMT_RX_BYTES,
+	BATADV_CNT_FRAG_RX,
+	BATADV_CNT_FRAG_RX_BYTES,
+	BATADV_CNT_FRAG_FWD,
+	BATADV_CNT_FRAG_FWD_BYTES,
 	BATADV_CNT_TT_REQUEST_TX,
 	BATADV_CNT_TT_REQUEST_RX,
 	BATADV_CNT_TT_RESPONSE_TX,
-- 
cgit 


From ee75ed88879af88558818a5c6609d85f60ff0df4 Mon Sep 17 00:00:00 2001
From: Martin Hundebøll <martin@hundeboll.net>
Date: Thu, 23 May 2013 16:53:03 +0200
Subject: batman-adv: Fragment and send skbs larger than mtu
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Non-broadcast packets larger than MTU are fragmented and sent with
an encapsulating header. Up to 16 fragments are supported, which are
sent in reverse order on the wire to allow minimal memory copying when
creating fragments.

Signed-off-by: Martin Hundebøll <martin@hundeboll.net>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/fragmentation.c  | 121 ++++++++++++++++++++++++++++++++++++++++
 net/batman-adv/fragmentation.h  |   3 +
 net/batman-adv/send.c           |  21 +++++--
 net/batman-adv/soft-interface.c |   7 +++
 net/batman-adv/types.h          |   6 ++
 5 files changed, 154 insertions(+), 4 deletions(-)

diff --git a/net/batman-adv/fragmentation.c b/net/batman-adv/fragmentation.c
index c829d3cee89c..271d321b3a04 100644
--- a/net/batman-adv/fragmentation.c
+++ b/net/batman-adv/fragmentation.c
@@ -368,3 +368,124 @@ out:
 		batadv_neigh_node_free_ref(neigh_node);
 	return ret;
 }
+
+/**
+ * batadv_frag_create - create a fragment from skb
+ * @skb: skb to create fragment from
+ * @frag_head: header to use in new fragment
+ * @mtu: size of new fragment
+ *
+ * Split the passed skb into two fragments: A new one with size matching the
+ * passed mtu and the old one with the rest. The new skb contains data from the
+ * tail of the old skb.
+ *
+ * Returns the new fragment, NULL on error.
+ */
+static struct sk_buff *batadv_frag_create(struct sk_buff *skb,
+					  struct batadv_frag_packet *frag_head,
+					  unsigned int mtu)
+{
+	struct sk_buff *skb_fragment;
+	unsigned header_size = sizeof(*frag_head);
+	unsigned fragment_size = mtu - header_size;
+
+	skb_fragment = netdev_alloc_skb(NULL, mtu + ETH_HLEN);
+	if (!skb_fragment)
+		goto err;
+
+	skb->priority = TC_PRIO_CONTROL;
+
+	/* Eat the last mtu-bytes of the skb */
+	skb_reserve(skb_fragment, header_size + ETH_HLEN);
+	skb_split(skb, skb_fragment, skb->len - fragment_size);
+
+	/* Add the header */
+	skb_push(skb_fragment, header_size);
+	memcpy(skb_fragment->data, frag_head, header_size);
+
+err:
+	return skb_fragment;
+}
+
+/**
+ * batadv_frag_send_packet - create up to 16 fragments from the passed skb
+ * @skb: skb to create fragments from
+ * @orig_node: final destination of the created fragments
+ * @neigh_node: next-hop of the created fragments
+ *
+ * Returns true on success, false otherwise.
+ */
+bool batadv_frag_send_packet(struct sk_buff *skb,
+			     struct batadv_orig_node *orig_node,
+			     struct batadv_neigh_node *neigh_node)
+{
+	struct batadv_priv *bat_priv;
+	struct batadv_hard_iface *primary_if;
+	struct batadv_frag_packet frag_header;
+	struct sk_buff *skb_fragment;
+	unsigned mtu = neigh_node->if_incoming->net_dev->mtu;
+	unsigned header_size = sizeof(frag_header);
+	unsigned max_fragment_size, max_packet_size;
+
+	/* To avoid merge and refragmentation at next-hops we never send
+	 * fragments larger than BATADV_FRAG_MAX_FRAG_SIZE
+	 */
+	mtu = min_t(unsigned, mtu, BATADV_FRAG_MAX_FRAG_SIZE);
+	max_fragment_size = (mtu - header_size - ETH_HLEN);
+	max_packet_size = max_fragment_size * BATADV_FRAG_MAX_FRAGMENTS;
+
+	/* Don't even try to fragment, if we need more than 16 fragments */
+	if (skb->len > max_packet_size)
+		goto out_err;
+
+	bat_priv = orig_node->bat_priv;
+	primary_if = batadv_primary_if_get_selected(bat_priv);
+	if (!primary_if)
+		goto out_err;
+
+	/* Create one header to be copied to all fragments */
+	frag_header.header.packet_type = BATADV_UNICAST_FRAG;
+	frag_header.header.version = BATADV_COMPAT_VERSION;
+	frag_header.header.ttl = BATADV_TTL;
+	frag_header.seqno = htons(atomic_inc_return(&bat_priv->frag_seqno));
+	frag_header.reserved = 0;
+	frag_header.no = 0;
+	frag_header.total_size = htons(skb->len);
+	memcpy(frag_header.orig, primary_if->net_dev->dev_addr, ETH_ALEN);
+	memcpy(frag_header.dest, orig_node->orig, ETH_ALEN);
+
+	/* Eat and send fragments from the tail of skb */
+	while (skb->len > max_fragment_size) {
+		skb_fragment = batadv_frag_create(skb, &frag_header, mtu);
+		if (!skb_fragment)
+			goto out_err;
+
+		batadv_inc_counter(bat_priv, BATADV_CNT_FRAG_TX);
+		batadv_add_counter(bat_priv, BATADV_CNT_FRAG_TX_BYTES,
+				   skb_fragment->len + ETH_HLEN);
+		batadv_send_skb_packet(skb_fragment, neigh_node->if_incoming,
+				       neigh_node->addr);
+		frag_header.no++;
+
+		/* The initial check in this function should cover this case */
+		if (frag_header.no == BATADV_FRAG_MAX_FRAGMENTS - 1)
+			goto out_err;
+	}
+
+	/* Make room for the fragment header. */
+	if (batadv_skb_head_push(skb, header_size) < 0 ||
+	    pskb_expand_head(skb, header_size + ETH_HLEN, 0, GFP_ATOMIC) < 0)
+		goto out_err;
+
+	memcpy(skb->data, &frag_header, header_size);
+
+	/* Send the last fragment */
+	batadv_inc_counter(bat_priv, BATADV_CNT_FRAG_TX);
+	batadv_add_counter(bat_priv, BATADV_CNT_FRAG_TX_BYTES,
+			   skb->len + ETH_HLEN);
+	batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
+
+	return true;
+out_err:
+	return false;
+}
diff --git a/net/batman-adv/fragmentation.h b/net/batman-adv/fragmentation.h
index 883a6f46005e..ca029e2676e7 100644
--- a/net/batman-adv/fragmentation.h
+++ b/net/batman-adv/fragmentation.h
@@ -27,6 +27,9 @@ bool batadv_frag_skb_fwd(struct sk_buff *skb,
 			 struct batadv_orig_node *orig_node_src);
 bool batadv_frag_skb_buffer(struct sk_buff **skb,
 			    struct batadv_orig_node *orig_node);
+bool batadv_frag_send_packet(struct sk_buff *skb,
+			     struct batadv_orig_node *orig_node,
+			     struct batadv_neigh_node *neigh_node);
 
 /**
  * batadv_frag_check_entry - check if a list of fragments has timed out
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index b8356ec067bf..1a1aa59d78ee 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -28,8 +28,7 @@
 #include "gateway_client.h"
 #include "originator.h"
 #include "network-coding.h"
-
-#include <linux/if_ether.h>
+#include "fragmentation.h"
 
 static void batadv_send_outstanding_bcast_packet(struct work_struct *work);
 
@@ -109,7 +108,19 @@ int batadv_send_skb_to_orig(struct sk_buff *skb,
 	/* batadv_find_router() increases neigh_nodes refcount if found. */
 	neigh_node = batadv_find_router(bat_priv, orig_node, recv_if);
 	if (!neigh_node)
-		return ret;
+		goto out;
+
+	/* Check if the skb is too large to send in one piece and fragment
+	 * it if needed.
+	 */
+	if (atomic_read(&bat_priv->fragmentation) &&
+	    skb->len > neigh_node->if_incoming->net_dev->mtu) {
+		/* Fragment and send packet. */
+		if (batadv_frag_send_packet(skb, orig_node, neigh_node))
+			ret = NET_XMIT_SUCCESS;
+
+		goto out;
+	}
 
 	/* try to network code the packet, if it is received on an interface
 	 * (i.e. being forwarded). If the packet originates from this node or if
@@ -123,7 +134,9 @@ int batadv_send_skb_to_orig(struct sk_buff *skb,
 		ret = NET_XMIT_SUCCESS;
 	}
 
-	batadv_neigh_node_free_ref(neigh_node);
+out:
+	if (neigh_node)
+		batadv_neigh_node_free_ref(neigh_node);
 
 	return ret;
 }
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index dd189e6bf05a..18b1fd915d1f 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -442,6 +442,7 @@ static void batadv_softif_destroy_finish(struct work_struct *work)
 static int batadv_softif_init_late(struct net_device *dev)
 {
 	struct batadv_priv *bat_priv;
+	uint32_t random_seqno;
 	int ret;
 	size_t cnt_len = sizeof(uint64_t) * BATADV_CNT_NUM;
 
@@ -491,6 +492,10 @@ static int batadv_softif_init_late(struct net_device *dev)
 	bat_priv->tt.last_changeset = NULL;
 	bat_priv->tt.last_changeset_len = 0;
 
+	/* randomize initial seqno to avoid collision */
+	get_random_bytes(&random_seqno, sizeof(random_seqno));
+	atomic_set(&bat_priv->frag_seqno, random_seqno);
+
 	bat_priv->primary_if = NULL;
 	bat_priv->num_ifaces = 0;
 
@@ -758,6 +763,8 @@ static const struct {
 	{ "mgmt_tx_bytes" },
 	{ "mgmt_rx" },
 	{ "mgmt_rx_bytes" },
+	{ "frag_tx" },
+	{ "frag_tx_bytes" },
 	{ "frag_rx" },
 	{ "frag_rx_bytes" },
 	{ "frag_fwd" },
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 5a2cc7a9a620..d517d5dde6ad 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -300,6 +300,8 @@ struct batadv_bcast_duplist_entry {
  * @BATADV_CNT_MGMT_TX_BYTES: transmitted routing protocol traffic bytes counter
  * @BATADV_CNT_MGMT_RX: received routing protocol traffic packet counter
  * @BATADV_CNT_MGMT_RX_BYTES: received routing protocol traffic bytes counter
+ * @BATADV_CNT_FRAG_TX: transmitted fragment traffic packet counter
+ * @BATADV_CNT_FRAG_TX_BYTES: transmitted fragment traffic bytes counter
  * @BATADV_CNT_FRAG_RX: received fragment traffic packet counter
  * @BATADV_CNT_FRAG_RX_BYTES: received fragment traffic bytes counter
  * @BATADV_CNT_FRAG_FWD: forwarded fragment traffic packet counter
@@ -341,6 +343,8 @@ enum batadv_counters {
 	BATADV_CNT_MGMT_TX_BYTES,
 	BATADV_CNT_MGMT_RX,
 	BATADV_CNT_MGMT_RX_BYTES,
+	BATADV_CNT_FRAG_TX,
+	BATADV_CNT_FRAG_TX_BYTES,
 	BATADV_CNT_FRAG_RX,
 	BATADV_CNT_FRAG_RX_BYTES,
 	BATADV_CNT_FRAG_FWD,
@@ -542,6 +546,7 @@ struct batadv_priv_nc {
  * @aggregated_ogms: bool indicating whether OGM aggregation is enabled
  * @bonding: bool indicating whether traffic bonding is enabled
  * @fragmentation: bool indicating whether traffic fragmentation is enabled
+ * @frag_seqno: incremental counter to identify chains of egress fragments
  * @ap_isolation: bool indicating whether ap isolation is enabled
  * @bridge_loop_avoidance: bool indicating whether bridge loop avoidance is
  *  enabled
@@ -585,6 +590,7 @@ struct batadv_priv {
 	atomic_t aggregated_ogms;
 	atomic_t bonding;
 	atomic_t fragmentation;
+	atomic_t frag_seqno;
 	atomic_t ap_isolation;
 #ifdef CONFIG_BATMAN_ADV_BLA
 	atomic_t bridge_loop_avoidance;
-- 
cgit 


From 293e93385e024be71500c9480ef85d6199459d17 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <ordex@autistici.org>
Date: Sun, 19 May 2013 12:55:16 +0200
Subject: batman-adv: use htons when possible

When comparing a network ordered value with a constant, it
is better to convert the constant at compile time by means
of htons() instead of converting the value at runtime using
ntohs().

This refactoring may slightly improve the code performance.

Moreover substitute __constant_htons() with htons() since
the latter increase readability and it is smart enough to be
as efficient as the former

Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Acked-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
---
 net/batman-adv/bridge_loop_avoidance.c | 12 ++++++------
 net/batman-adv/gateway_client.c        |  4 ++--
 net/batman-adv/hard-interface.c        |  2 +-
 net/batman-adv/send.c                  |  4 ++--
 net/batman-adv/soft-interface.c        |  4 ++--
 5 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index 70da18ab41c3..5bb58d7bdd56 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -863,25 +863,25 @@ static int batadv_bla_process_claim(struct batadv_priv *bat_priv,
 	struct arphdr *arphdr;
 	uint8_t *hw_src, *hw_dst;
 	struct batadv_bla_claim_dst *bla_dst;
-	uint16_t proto;
+	__be16 proto;
 	int headlen;
 	unsigned short vid = BATADV_NO_FLAGS;
 	int ret;
 
 	ethhdr = eth_hdr(skb);
 
-	if (ntohs(ethhdr->h_proto) == ETH_P_8021Q) {
+	if (ethhdr->h_proto == htons(ETH_P_8021Q)) {
 		vhdr = (struct vlan_ethhdr *)ethhdr;
 		vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK;
 		vid |= BATADV_VLAN_HAS_TAG;
-		proto = ntohs(vhdr->h_vlan_encapsulated_proto);
+		proto = vhdr->h_vlan_encapsulated_proto;
 		headlen = sizeof(*vhdr);
 	} else {
-		proto = ntohs(ethhdr->h_proto);
+		proto = ethhdr->h_proto;
 		headlen = ETH_HLEN;
 	}
 
-	if (proto != ETH_P_ARP)
+	if (proto != htons(ETH_P_ARP))
 		return 0; /* not a claim frame */
 
 	/* this must be a ARP frame. check if it is a claim. */
@@ -1379,7 +1379,7 @@ int batadv_bla_is_backbone_gw(struct sk_buff *skb,
 
 	ethhdr = (struct ethhdr *)(((uint8_t *)skb->data) + hdr_size);
 
-	if (ntohs(ethhdr->h_proto) == ETH_P_8021Q) {
+	if (ethhdr->h_proto == htons(ETH_P_8021Q)) {
 		if (!pskb_may_pull(skb, hdr_size + VLAN_ETH_HLEN))
 			return 0;
 
diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index ac97ca7f4ad0..053bb318c7a7 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -716,11 +716,11 @@ bool batadv_gw_is_dhcp_target(struct sk_buff *skb, unsigned int *header_len)
 
 	/* check for bootp port */
 	if ((proto == htons(ETH_P_IP)) &&
-	    (ntohs(udphdr->dest) != 67))
+	    (udphdr->dest != htons(67)))
 		return false;
 
 	if ((proto == htons(ETH_P_IPV6)) &&
-	    (ntohs(udphdr->dest) != 547))
+	    (udphdr->dest != htons(547)))
 		return false;
 
 	return true;
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index 0c8602e5a5c4..004017c523fa 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -379,7 +379,7 @@ int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,
 {
 	struct batadv_priv *bat_priv;
 	struct net_device *soft_iface, *master;
-	__be16 ethertype = __constant_htons(ETH_P_BATMAN);
+	__be16 ethertype = htons(ETH_P_BATMAN);
 	int ret;
 
 	if (hard_iface->if_status != BATADV_IF_NOT_IN_USE)
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index 1a1aa59d78ee..4bbcf51db6a7 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -63,10 +63,10 @@ int batadv_send_skb_packet(struct sk_buff *skb,
 	ethhdr = eth_hdr(skb);
 	memcpy(ethhdr->h_source, hard_iface->net_dev->dev_addr, ETH_ALEN);
 	memcpy(ethhdr->h_dest, dst_addr, ETH_ALEN);
-	ethhdr->h_proto = __constant_htons(ETH_P_BATMAN);
+	ethhdr->h_proto = htons(ETH_P_BATMAN);
 
 	skb_set_network_header(skb, ETH_HLEN);
-	skb->protocol = __constant_htons(ETH_P_BATMAN);
+	skb->protocol = htons(ETH_P_BATMAN);
 
 	skb->dev = hard_iface->net_dev;
 
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 18b1fd915d1f..87e7e4ed216d 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -145,7 +145,7 @@ static int batadv_interface_tx(struct sk_buff *skb,
 	struct batadv_hard_iface *primary_if = NULL;
 	struct batadv_bcast_packet *bcast_packet;
 	struct vlan_ethhdr *vhdr;
-	__be16 ethertype = __constant_htons(ETH_P_BATMAN);
+	__be16 ethertype = htons(ETH_P_BATMAN);
 	static const uint8_t stp_addr[ETH_ALEN] = {0x01, 0x80, 0xC2, 0x00,
 						   0x00, 0x00};
 	static const uint8_t ectp_addr[ETH_ALEN] = {0xCF, 0x00, 0x00, 0x00,
@@ -312,7 +312,7 @@ void batadv_interface_rx(struct net_device *soft_iface,
 	struct vlan_ethhdr *vhdr;
 	struct batadv_header *batadv_header = (struct batadv_header *)skb->data;
 	unsigned short vid __maybe_unused = BATADV_NO_FLAGS;
-	__be16 ethertype = __constant_htons(ETH_P_BATMAN);
+	__be16 ethertype = htons(ETH_P_BATMAN);
 	bool is_bcast;
 
 	is_bcast = (batadv_header->packet_type == BATADV_BCAST);
-- 
cgit 


From 9e69c935fad9fd5f0550c51e3bd251cd30033136 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Fri, 4 Oct 2013 12:06:00 +0100
Subject: iio: Add reference counting for buffers

Since the buffer is accessed by userspace we can not just free the buffers
memory once we are done with it in kernel space. There might still be open file
descriptors and userspace still might be accessing the buffer. This patch adds
support for reference counting to the IIO buffers. When a buffer is created and
initialized its initial reference count is set to 1. Instead of freeing the
memory of the buffer the buffer's _free() function will drop that reference
again. But only after the last reference to the buffer has been dropped the
buffer the buffer's memory will be freed. The IIO device will take a reference
to its primary buffer. The patch adds a small helper function for this called
iio_device_attach_buffer() which will get a reference to the buffer and assign
the buffer to the IIO device. This function must be used instead of assigning
the buffer to the device by hand. The reference is only dropped once the IIO
device is freed and we can be sure that there are no more open file handles. A
reference to a buffer will also be taken whenever the buffer is active to avoid
the buffer being freed while data is still being send to it.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/buffer_cb.c                         | 21 +++++---
 drivers/iio/industrialio-buffer.c               | 66 +++++++++++++++++++++++--
 drivers/iio/industrialio-core.c                 |  3 ++
 drivers/iio/industrialio-triggered-buffer.c     |  7 ++-
 drivers/iio/kfifo_buf.c                         |  8 ++-
 drivers/staging/iio/accel/lis3l02dq_ring.c      |  2 +-
 drivers/staging/iio/accel/sca3000_ring.c        | 13 +++--
 drivers/staging/iio/iio_simple_dummy_buffer.c   |  2 +-
 drivers/staging/iio/impedance-analyzer/ad5933.c |  8 ++-
 drivers/staging/iio/meter/ade7758_ring.c        |  7 ++-
 include/linux/iio/buffer.h                      | 28 +++++++++++
 11 files changed, 141 insertions(+), 24 deletions(-)

diff --git a/drivers/iio/buffer_cb.c b/drivers/iio/buffer_cb.c
index 841fec1e78b2..2d9c6f8c06db 100644
--- a/drivers/iio/buffer_cb.c
+++ b/drivers/iio/buffer_cb.c
@@ -12,17 +12,27 @@ struct iio_cb_buffer {
 	struct iio_channel *channels;
 };
 
-static int iio_buffer_cb_store_to(struct iio_buffer *buffer, const void *data)
+static struct iio_cb_buffer *buffer_to_cb_buffer(struct iio_buffer *buffer)
 {
-	struct iio_cb_buffer *cb_buff = container_of(buffer,
-						     struct iio_cb_buffer,
-						     buffer);
+	return container_of(buffer, struct iio_cb_buffer, buffer);
+}
 
+static int iio_buffer_cb_store_to(struct iio_buffer *buffer, const void *data)
+{
+	struct iio_cb_buffer *cb_buff = buffer_to_cb_buffer(buffer);
 	return cb_buff->cb(data, cb_buff->private);
 }
 
+static void iio_buffer_cb_release(struct iio_buffer *buffer)
+{
+	struct iio_cb_buffer *cb_buff = buffer_to_cb_buffer(buffer);
+	kfree(cb_buff->buffer.scan_mask);
+	kfree(cb_buff);
+}
+
 static const struct iio_buffer_access_funcs iio_cb_access = {
 	.store_to = &iio_buffer_cb_store_to,
+	.release = &iio_buffer_cb_release,
 };
 
 struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev,
@@ -104,9 +114,8 @@ EXPORT_SYMBOL_GPL(iio_channel_stop_all_cb);
 
 void iio_channel_release_all_cb(struct iio_cb_buffer *cb_buff)
 {
-	kfree(cb_buff->buffer.scan_mask);
 	iio_channel_release_all(cb_buff->channels);
-	kfree(cb_buff);
+	iio_buffer_put(&cb_buff->buffer);
 }
 EXPORT_SYMBOL_GPL(iio_channel_release_all_cb);
 
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index e9f389b9da69..36c39dcad850 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -74,6 +74,7 @@ void iio_buffer_init(struct iio_buffer *buffer)
 	INIT_LIST_HEAD(&buffer->demux_list);
 	INIT_LIST_HEAD(&buffer->buffer_list);
 	init_waitqueue_head(&buffer->pollq);
+	kref_init(&buffer->ref);
 }
 EXPORT_SYMBOL(iio_buffer_init);
 
@@ -454,6 +455,19 @@ static int iio_compute_scan_bytes(struct iio_dev *indio_dev,
 	return bytes;
 }
 
+static void iio_buffer_activate(struct iio_dev *indio_dev,
+	struct iio_buffer *buffer)
+{
+	iio_buffer_get(buffer);
+	list_add(&buffer->buffer_list, &indio_dev->buffer_list);
+}
+
+static void iio_buffer_deactivate(struct iio_buffer *buffer)
+{
+	list_del_init(&buffer->buffer_list);
+	iio_buffer_put(buffer);
+}
+
 void iio_disable_all_buffers(struct iio_dev *indio_dev)
 {
 	struct iio_buffer *buffer, *_buffer;
@@ -466,7 +480,7 @@ void iio_disable_all_buffers(struct iio_dev *indio_dev)
 
 	list_for_each_entry_safe(buffer, _buffer,
 			&indio_dev->buffer_list, buffer_list)
-		list_del_init(&buffer->buffer_list);
+		iio_buffer_deactivate(buffer);
 
 	indio_dev->currentmode = INDIO_DIRECT_MODE;
 	if (indio_dev->setup_ops->postdisable)
@@ -503,9 +517,9 @@ int iio_update_buffers(struct iio_dev *indio_dev,
 		indio_dev->active_scan_mask = NULL;
 
 	if (remove_buffer)
-		list_del_init(&remove_buffer->buffer_list);
+		iio_buffer_deactivate(remove_buffer);
 	if (insert_buffer)
-		list_add(&insert_buffer->buffer_list, &indio_dev->buffer_list);
+		iio_buffer_activate(indio_dev, insert_buffer);
 
 	/* If no buffers in list, we are done */
 	if (list_empty(&indio_dev->buffer_list)) {
@@ -540,7 +554,7 @@ int iio_update_buffers(struct iio_dev *indio_dev,
 			 * Roll back.
 			 * Note can only occur when adding a buffer.
 			 */
-			list_del_init(&insert_buffer->buffer_list);
+			iio_buffer_deactivate(insert_buffer);
 			if (old_mask) {
 				indio_dev->active_scan_mask = old_mask;
 				success = -EINVAL;
@@ -631,7 +645,7 @@ error_run_postdisable:
 error_remove_inserted:
 
 	if (insert_buffer)
-		list_del_init(&insert_buffer->buffer_list);
+		iio_buffer_deactivate(insert_buffer);
 	indio_dev->active_scan_mask = old_mask;
 	kfree(compound_mask);
 error_ret:
@@ -952,3 +966,45 @@ error_clear_mux_table:
 	return ret;
 }
 EXPORT_SYMBOL_GPL(iio_update_demux);
+
+/**
+ * iio_buffer_release() - Free a buffer's resources
+ * @ref: Pointer to the kref embedded in the iio_buffer struct
+ *
+ * This function is called when the last reference to the buffer has been
+ * dropped. It will typically free all resources allocated by the buffer. Do not
+ * call this function manually, always use iio_buffer_put() when done using a
+ * buffer.
+ */
+static void iio_buffer_release(struct kref *ref)
+{
+	struct iio_buffer *buffer = container_of(ref, struct iio_buffer, ref);
+
+	buffer->access->release(buffer);
+}
+
+/**
+ * iio_buffer_get() - Grab a reference to the buffer
+ * @buffer: The buffer to grab a reference for, may be NULL
+ *
+ * Returns the pointer to the buffer that was passed into the function.
+ */
+struct iio_buffer *iio_buffer_get(struct iio_buffer *buffer)
+{
+	if (buffer)
+		kref_get(&buffer->ref);
+
+	return buffer;
+}
+EXPORT_SYMBOL_GPL(iio_buffer_get);
+
+/**
+ * iio_buffer_put() - Release the reference to the buffer
+ * @buffer: The buffer to release the reference for, may be NULL
+ */
+void iio_buffer_put(struct iio_buffer *buffer)
+{
+	if (buffer)
+		kref_put(&buffer->ref, iio_buffer_release);
+}
+EXPORT_SYMBOL_GPL(iio_buffer_put);
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index ecf58963ac24..f939bad31ca1 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -28,6 +28,7 @@
 #include "iio_core_trigger.h"
 #include <linux/iio/sysfs.h>
 #include <linux/iio/events.h>
+#include <linux/iio/buffer.h>
 
 /* IDA to assign each registered device a unique id */
 static DEFINE_IDA(iio_ida);
@@ -895,6 +896,8 @@ static void iio_dev_release(struct device *device)
 	iio_device_unregister_eventset(indio_dev);
 	iio_device_unregister_sysfs(indio_dev);
 
+	iio_buffer_put(indio_dev->buffer);
+
 	ida_simple_remove(&iio_ida, indio_dev->id);
 	kfree(indio_dev);
 }
diff --git a/drivers/iio/industrialio-triggered-buffer.c b/drivers/iio/industrialio-triggered-buffer.c
index 46c619b0d8c5..c1cb1f94fe2e 100644
--- a/drivers/iio/industrialio-triggered-buffer.c
+++ b/drivers/iio/industrialio-triggered-buffer.c
@@ -47,14 +47,17 @@ int iio_triggered_buffer_setup(struct iio_dev *indio_dev,
 	irqreturn_t (*pollfunc_th)(int irq, void *p),
 	const struct iio_buffer_setup_ops *setup_ops)
 {
+	struct iio_buffer *buffer;
 	int ret;
 
-	indio_dev->buffer = iio_kfifo_allocate(indio_dev);
-	if (!indio_dev->buffer) {
+	buffer = iio_kfifo_allocate(indio_dev);
+	if (!buffer) {
 		ret = -ENOMEM;
 		goto error_ret;
 	}
 
+	iio_device_attach_buffer(indio_dev, buffer);
+
 	indio_dev->pollfunc = iio_alloc_pollfunc(pollfunc_bh,
 						 pollfunc_th,
 						 IRQF_ONESHOT,
diff --git a/drivers/iio/kfifo_buf.c b/drivers/iio/kfifo_buf.c
index 538d4616e48f..b4ac55a29fc4 100644
--- a/drivers/iio/kfifo_buf.c
+++ b/drivers/iio/kfifo_buf.c
@@ -130,6 +130,11 @@ static int iio_read_first_n_kfifo(struct iio_buffer *r,
 	return copied;
 }
 
+static void iio_kfifo_buffer_release(struct iio_buffer *buffer)
+{
+	kfree(iio_to_kfifo(buffer));
+}
+
 static const struct iio_buffer_access_funcs kfifo_access_funcs = {
 	.store_to = &iio_store_to_kfifo,
 	.read_first_n = &iio_read_first_n_kfifo,
@@ -138,6 +143,7 @@ static const struct iio_buffer_access_funcs kfifo_access_funcs = {
 	.set_bytes_per_datum = &iio_set_bytes_per_datum_kfifo,
 	.get_length = &iio_get_length_kfifo,
 	.set_length = &iio_set_length_kfifo,
+	.release = &iio_kfifo_buffer_release,
 };
 
 struct iio_buffer *iio_kfifo_allocate(struct iio_dev *indio_dev)
@@ -158,7 +164,7 @@ EXPORT_SYMBOL(iio_kfifo_allocate);
 
 void iio_kfifo_free(struct iio_buffer *r)
 {
-	kfree(iio_to_kfifo(r));
+	iio_buffer_put(r);
 }
 EXPORT_SYMBOL(iio_kfifo_free);
 
diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c
index ed7de471e3f3..2d559ba353d2 100644
--- a/drivers/staging/iio/accel/lis3l02dq_ring.c
+++ b/drivers/staging/iio/accel/lis3l02dq_ring.c
@@ -396,7 +396,7 @@ int lis3l02dq_configure_buffer(struct iio_dev *indio_dev)
 	if (!buffer)
 		return -ENOMEM;
 
-	indio_dev->buffer = buffer;
+	iio_device_attach_buffer(indio_dev, buffer);
 
 	buffer->scan_timestamp = true;
 	indio_dev->setup_ops = &lis3l02dq_buffer_setup_ops;
diff --git a/drivers/staging/iio/accel/sca3000_ring.c b/drivers/staging/iio/accel/sca3000_ring.c
index 0f2ee3373d9a..4a27beb1451a 100644
--- a/drivers/staging/iio/accel/sca3000_ring.c
+++ b/drivers/staging/iio/accel/sca3000_ring.c
@@ -265,7 +265,7 @@ static struct iio_buffer *sca3000_rb_allocate(struct iio_dev *indio_dev)
 	return buf;
 }
 
-static inline void sca3000_rb_free(struct iio_buffer *r)
+static void sca3000_ring_release(struct iio_buffer *r)
 {
 	kfree(iio_to_hw_buf(r));
 }
@@ -274,23 +274,28 @@ static const struct iio_buffer_access_funcs sca3000_ring_access_funcs = {
 	.read_first_n = &sca3000_read_first_n_hw_rb,
 	.get_length = &sca3000_ring_get_length,
 	.get_bytes_per_datum = &sca3000_ring_get_bytes_per_datum,
+	.release = sca3000_ring_release,
 };
 
 int sca3000_configure_ring(struct iio_dev *indio_dev)
 {
-	indio_dev->buffer = sca3000_rb_allocate(indio_dev);
-	if (indio_dev->buffer == NULL)
+	struct iio_buffer *buffer;
+
+	buffer = sca3000_rb_allocate(indio_dev);
+	if (buffer == NULL)
 		return -ENOMEM;
 	indio_dev->modes |= INDIO_BUFFER_HARDWARE;
 
 	indio_dev->buffer->access = &sca3000_ring_access_funcs;
 
+	iio_device_attach_buffer(indio_dev, buffer);
+
 	return 0;
 }
 
 void sca3000_unconfigure_ring(struct iio_dev *indio_dev)
 {
-	sca3000_rb_free(indio_dev->buffer);
+	iio_buffer_put(indio_dev->buffer);
 }
 
 static inline
diff --git a/drivers/staging/iio/iio_simple_dummy_buffer.c b/drivers/staging/iio/iio_simple_dummy_buffer.c
index 09c93ac7351a..2612e87fbcb4 100644
--- a/drivers/staging/iio/iio_simple_dummy_buffer.c
+++ b/drivers/staging/iio/iio_simple_dummy_buffer.c
@@ -135,7 +135,7 @@ int iio_simple_dummy_configure_buffer(struct iio_dev *indio_dev,
 		goto error_ret;
 	}
 
-	indio_dev->buffer = buffer;
+	iio_device_attach_buffer(indio_dev, buffer);
 
 	/* Enable timestamps by default */
 	buffer->scan_timestamp = true;
diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c
index 712f3c22ce64..f5701159bf36 100644
--- a/drivers/staging/iio/impedance-analyzer/ad5933.c
+++ b/drivers/staging/iio/impedance-analyzer/ad5933.c
@@ -630,10 +630,14 @@ static const struct iio_buffer_setup_ops ad5933_ring_setup_ops = {
 
 static int ad5933_register_ring_funcs_and_init(struct iio_dev *indio_dev)
 {
-	indio_dev->buffer = iio_kfifo_allocate(indio_dev);
-	if (!indio_dev->buffer)
+	struct iio_buffer *buffer;
+
+	buffer = iio_kfifo_allocate(indio_dev);
+	if (buffer)
 		return -ENOMEM;
 
+	iio_device_attach_buffer(indio_dev, buffer);
+
 	/* Ring buffer functions - here trigger setup related */
 	indio_dev->setup_ops = &ad5933_ring_setup_ops;
 
diff --git a/drivers/staging/iio/meter/ade7758_ring.c b/drivers/staging/iio/meter/ade7758_ring.c
index 4080995c99b6..7a448ffaeb14 100644
--- a/drivers/staging/iio/meter/ade7758_ring.c
+++ b/drivers/staging/iio/meter/ade7758_ring.c
@@ -121,14 +121,17 @@ void ade7758_unconfigure_ring(struct iio_dev *indio_dev)
 int ade7758_configure_ring(struct iio_dev *indio_dev)
 {
 	struct ade7758_state *st = iio_priv(indio_dev);
+	struct iio_buffer *buffer;
 	int ret = 0;
 
-	indio_dev->buffer = iio_kfifo_allocate(indio_dev);
-	if (!indio_dev->buffer) {
+	buffer = iio_kfifo_allocate(indio_dev);
+	if (!buffer) {
 		ret = -ENOMEM;
 		return ret;
 	}
 
+	iio_device_attach_buffer(indio_dev, buffer);
+
 	indio_dev->setup_ops = &ade7758_ring_setup_ops;
 
 	indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time,
diff --git a/include/linux/iio/buffer.h b/include/linux/iio/buffer.h
index a1124bdc4cac..6e428d96d570 100644
--- a/include/linux/iio/buffer.h
+++ b/include/linux/iio/buffer.h
@@ -11,6 +11,7 @@
 #define _IIO_BUFFER_GENERIC_H_
 #include <linux/sysfs.h>
 #include <linux/iio/iio.h>
+#include <linux/kref.h>
 
 #ifdef CONFIG_IIO_BUFFER
 
@@ -26,6 +27,8 @@ struct iio_buffer;
  * @set_bytes_per_datum:set number of bytes per datum
  * @get_length:		get number of datums in buffer
  * @set_length:		set number of datums in buffer
+ * @release:		called when the last reference to the buffer is dropped,
+ *			should free all resources allocated by the buffer.
  *
  * The purpose of this structure is to make the buffer element
  * modular as event for a given driver, different usecases may require
@@ -47,6 +50,8 @@ struct iio_buffer_access_funcs {
 	int (*set_bytes_per_datum)(struct iio_buffer *buffer, size_t bpd);
 	int (*get_length)(struct iio_buffer *buffer);
 	int (*set_length)(struct iio_buffer *buffer, int length);
+
+	void (*release)(struct iio_buffer *buffer);
 };
 
 /**
@@ -67,6 +72,7 @@ struct iio_buffer_access_funcs {
  * @demux_list:		[INTERN] list of operations required to demux the scan.
  * @demux_bounce:	[INTERN] buffer for doing gather from incoming scan.
  * @buffer_list:	[INTERN] entry in the devices list of current buffers.
+ * @ref:		[INTERN] reference count of the buffer.
  */
 struct iio_buffer {
 	int					length;
@@ -83,6 +89,7 @@ struct iio_buffer {
 	struct list_head			demux_list;
 	void					*demux_bounce;
 	struct list_head			buffer_list;
+	struct kref				ref;
 };
 
 /**
@@ -204,6 +211,24 @@ int iio_sw_buffer_preenable(struct iio_dev *indio_dev);
 bool iio_validate_scan_mask_onehot(struct iio_dev *indio_dev,
 	const unsigned long *mask);
 
+struct iio_buffer *iio_buffer_get(struct iio_buffer *buffer);
+void iio_buffer_put(struct iio_buffer *buffer);
+
+/**
+ * iio_device_attach_buffer - Attach a buffer to a IIO device
+ * @indio_dev: The device the buffer should be attached to
+ * @buffer: The buffer to attach to the device
+ *
+ * This function attaches a buffer to a IIO device. The buffer stays attached to
+ * the device until the device is freed. The function should only be called at
+ * most once per device.
+ */
+static inline void iio_device_attach_buffer(struct iio_dev *indio_dev,
+	struct iio_buffer *buffer)
+{
+	indio_dev->buffer = iio_buffer_get(buffer);
+}
+
 #else /* CONFIG_IIO_BUFFER */
 
 static inline int iio_buffer_register(struct iio_dev *indio_dev,
@@ -216,6 +241,9 @@ static inline int iio_buffer_register(struct iio_dev *indio_dev,
 static inline void iio_buffer_unregister(struct iio_dev *indio_dev)
 {}
 
+static inline void iio_buffer_get(struct iio_buffer *buffer) {}
+static inline void iio_buffer_put(struct iio_buffer *buffer) {}
+
 #endif /* CONFIG_IIO_BUFFER */
 
 #endif /* _IIO_BUFFER_GENERIC_H_ */
-- 
cgit 


From f18e7a068a0a31250cdb251810f8f6224931c3f5 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Fri, 4 Oct 2013 12:06:00 +0100
Subject: iio: Return -ENODEV for file operations if the device has been
 unregistered

If the IIO device has been unregistered return -ENODEV for any further file
operations like read() and ioctl(). This avoids userspace being able to grab new
references to the device.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/industrialio-buffer.c | 6 ++++++
 drivers/iio/industrialio-core.c   | 3 +++
 drivers/iio/industrialio-event.c  | 6 ++++++
 3 files changed, 15 insertions(+)

diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 36c39dcad850..6c7a9c509399 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -48,6 +48,9 @@ ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
 	struct iio_dev *indio_dev = filp->private_data;
 	struct iio_buffer *rb = indio_dev->buffer;
 
+	if (!indio_dev->info)
+		return -ENODEV;
+
 	if (!rb || !rb->access->read_first_n)
 		return -EINVAL;
 	return rb->access->read_first_n(rb, n, buf);
@@ -62,6 +65,9 @@ unsigned int iio_buffer_poll(struct file *filp,
 	struct iio_dev *indio_dev = filp->private_data;
 	struct iio_buffer *rb = indio_dev->buffer;
 
+	if (!indio_dev->info)
+		return -ENODEV;
+
 	poll_wait(filp, &rb->pollq, wait);
 	if (rb->stufftoread)
 		return POLLIN | POLLRDNORM;
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index f939bad31ca1..a019a7b424cb 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -1040,6 +1040,9 @@ static long iio_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 	int __user *ip = (int __user *)arg;
 	int fd;
 
+	if (!indio_dev->info)
+		return -ENODEV;
+
 	if (cmd == IIO_GET_EVENT_FD_IOCTL) {
 		fd = iio_event_getfd(indio_dev);
 		if (copy_to_user(ip, &fd, sizeof(fd)))
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index 36f0c8e0eb3d..837d450457dd 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -76,6 +76,9 @@ static unsigned int iio_event_poll(struct file *filep,
 	struct iio_event_interface *ev_int = indio_dev->event_interface;
 	unsigned int events = 0;
 
+	if (!indio_dev->info)
+		return -ENODEV;
+
 	poll_wait(filep, &ev_int->wait, wait);
 
 	spin_lock_irq(&ev_int->wait.lock);
@@ -96,6 +99,9 @@ static ssize_t iio_event_chrdev_read(struct file *filep,
 	unsigned int copied;
 	int ret;
 
+	if (!indio_dev->info)
+		return -ENODEV;
+
 	if (count < sizeof(struct iio_event_data))
 		return -EINVAL;
 
-- 
cgit 


From d2f0a48f36aea38e0a5c4b439d5d9c96aecabad9 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Fri, 4 Oct 2013 12:07:00 +0100
Subject: iio: Wakeup poll and blocking reads when the device is unregistered

Once the device has been unregistered there won't be any new data no matter how
long a userspace application waits, so we might as well wake them up and let
them know.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/iio_core.h            |  3 +++
 drivers/iio/industrialio-buffer.c | 16 ++++++++++++++++
 drivers/iio/industrialio-core.c   |  4 ++++
 drivers/iio/industrialio-event.c  | 21 ++++++++++++++++++++-
 4 files changed, 43 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/iio_core.h b/drivers/iio/iio_core.h
index 9209f47b273a..7512cf728ee6 100644
--- a/drivers/iio/iio_core.h
+++ b/drivers/iio/iio_core.h
@@ -50,6 +50,7 @@ ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
 #define iio_buffer_read_first_n_outer_addr (&iio_buffer_read_first_n_outer)
 
 void iio_disable_all_buffers(struct iio_dev *indio_dev);
+void iio_buffer_wakeup_poll(struct iio_dev *indio_dev);
 
 #else
 
@@ -57,11 +58,13 @@ void iio_disable_all_buffers(struct iio_dev *indio_dev);
 #define iio_buffer_read_first_n_outer_addr NULL
 
 static inline void iio_disable_all_buffers(struct iio_dev *indio_dev) {}
+static inline void iio_buffer_wakeup_poll(struct iio_dev *indio_dev) {}
 
 #endif
 
 int iio_device_register_eventset(struct iio_dev *indio_dev);
 void iio_device_unregister_eventset(struct iio_dev *indio_dev);
+void iio_device_wakeup_eventset(struct iio_dev *indio_dev);
 int iio_event_getfd(struct iio_dev *indio_dev);
 
 #endif
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 6c7a9c509399..5a46c57a038b 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -20,6 +20,7 @@
 #include <linux/cdev.h>
 #include <linux/slab.h>
 #include <linux/poll.h>
+#include <linux/sched.h>
 
 #include <linux/iio/iio.h>
 #include "iio_core.h"
@@ -75,6 +76,21 @@ unsigned int iio_buffer_poll(struct file *filp,
 	return 0;
 }
 
+/**
+ * iio_buffer_wakeup_poll - Wakes up the buffer waitqueue
+ * @indio_dev: The IIO device
+ *
+ * Wakes up the event waitqueue used for poll(). Should usually
+ * be called when the device is unregistered.
+ */
+void iio_buffer_wakeup_poll(struct iio_dev *indio_dev)
+{
+	if (!indio_dev->buffer)
+		return;
+
+	wake_up(&indio_dev->buffer->pollq);
+}
+
 void iio_buffer_init(struct iio_buffer *buffer)
 {
 	INIT_LIST_HEAD(&buffer->demux_list);
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index a019a7b424cb..dc24a9b3d325 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -1139,6 +1139,10 @@ void iio_device_unregister(struct iio_dev *indio_dev)
 	iio_disable_all_buffers(indio_dev);
 
 	indio_dev->info = NULL;
+
+	iio_device_wakeup_eventset(indio_dev);
+	iio_buffer_wakeup_poll(indio_dev);
+
 	mutex_unlock(&indio_dev->info_exist_lock);
 }
 EXPORT_SYMBOL(iio_device_unregister);
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index 837d450457dd..d251f30fb739 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -113,9 +113,14 @@ static ssize_t iio_event_chrdev_read(struct file *filep,
 		}
 		/* Blocking on device; waiting for something to be there */
 		ret = wait_event_interruptible_locked_irq(ev_int->wait,
-					!kfifo_is_empty(&ev_int->det_events));
+					!kfifo_is_empty(&ev_int->det_events) ||
+					indio_dev->info == NULL);
 		if (ret)
 			goto error_unlock;
+		if (indio_dev->info == NULL) {
+			ret = -ENODEV;
+			goto error_unlock;
+		}
 		/* Single access device so no one else can get the data */
 	}
 
@@ -454,6 +459,20 @@ error_ret:
 	return ret;
 }
 
+/**
+ * iio_device_wakeup_eventset - Wakes up the event waitqueue
+ * @indio_dev: The IIO device
+ *
+ * Wakes up the event waitqueue used for poll() and blocking read().
+ * Should usually be called when the device is unregistered.
+ */
+void iio_device_wakeup_eventset(struct iio_dev *indio_dev)
+{
+	if (indio_dev->event_interface == NULL)
+		return;
+	wake_up(&indio_dev->event_interface->wait);
+}
+
 void iio_device_unregister_eventset(struct iio_dev *indio_dev)
 {
 	if (indio_dev->event_interface == NULL)
-- 
cgit 


From a95194569f697a6cc10d00f9b9b3d21b0b820520 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Fri, 4 Oct 2013 12:07:00 +0100
Subject: iio:buffer: Add proper locking for iio_update_buffers()

We need to make sure that in-kernel users of iio_update_buffers() do not race
against each other or against unregistration of the device. So we need to take
both the mlock and the info_exist_lock when calling iio_update_buffers() from a
in-kernel consumer.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/industrialio-buffer.c | 29 ++++++++++++++++++++++++++---
 1 file changed, 26 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 5a46c57a038b..d6a5455ae51a 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -509,7 +509,7 @@ void iio_disable_all_buffers(struct iio_dev *indio_dev)
 		indio_dev->setup_ops->postdisable(indio_dev);
 }
 
-int iio_update_buffers(struct iio_dev *indio_dev,
+static int __iio_update_buffers(struct iio_dev *indio_dev,
 		       struct iio_buffer *insert_buffer,
 		       struct iio_buffer *remove_buffer)
 {
@@ -674,6 +674,29 @@ error_ret:
 
 	return ret;
 }
+
+int iio_update_buffers(struct iio_dev *indio_dev,
+		       struct iio_buffer *insert_buffer,
+		       struct iio_buffer *remove_buffer)
+{
+	int ret;
+
+	mutex_lock(&indio_dev->info_exist_lock);
+	mutex_lock(&indio_dev->mlock);
+
+	if (indio_dev->info == NULL) {
+		ret = -ENODEV;
+		goto out_unlock;
+	}
+
+	ret = __iio_update_buffers(indio_dev, insert_buffer, remove_buffer);
+
+out_unlock:
+	mutex_unlock(&indio_dev->mlock);
+	mutex_unlock(&indio_dev->info_exist_lock);
+
+	return ret;
+}
 EXPORT_SYMBOL_GPL(iio_update_buffers);
 
 ssize_t iio_buffer_store_enable(struct device *dev,
@@ -699,10 +722,10 @@ ssize_t iio_buffer_store_enable(struct device *dev,
 		goto done;
 
 	if (requested_state)
-		ret = iio_update_buffers(indio_dev,
+		ret = __iio_update_buffers(indio_dev,
 					 indio_dev->buffer, NULL);
 	else
-		ret = iio_update_buffers(indio_dev,
+		ret = __iio_update_buffers(indio_dev,
 					 NULL, indio_dev->buffer);
 
 	if (ret < 0)
-- 
cgit 


From 84088ebd14aebf1b8499409a037094b9b88e2796 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 12:50:00 +0100
Subject: iio: Add a helper to free a list of IIO device attributes

We have the same code to free a IIO device attribute list in multiple place.
This patch adds a new helper function to take care of this and replaces the
custom instances with a call to the helper function. Note that we do not need to
call list_del() for each of the list items since we will never look at any of
the list items nor the list itself again.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/iio_core.h            |  1 +
 drivers/iio/industrialio-buffer.c | 21 ++-------------------
 drivers/iio/industrialio-core.c   | 34 ++++++++++++++++++----------------
 drivers/iio/industrialio-event.c  | 15 ++-------------
 4 files changed, 23 insertions(+), 48 deletions(-)

diff --git a/drivers/iio/iio_core.h b/drivers/iio/iio_core.h
index 7512cf728ee6..9939917033ca 100644
--- a/drivers/iio/iio_core.h
+++ b/drivers/iio/iio_core.h
@@ -33,6 +33,7 @@ int __iio_add_chan_devattr(const char *postfix,
 			   enum iio_shared_by shared_by,
 			   struct device *dev,
 			   struct list_head *attr_list);
+void iio_free_chan_devattr_list(struct list_head *attr_list);
 
 /* Event interface flags */
 #define IIO_BUSY_BIT_POS 1
diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index d6a5455ae51a..d12b384d94bf 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -274,23 +274,6 @@ error_ret:
 	return ret;
 }
 
-static void iio_buffer_remove_and_free_scan_dev_attr(struct iio_dev *indio_dev,
-						     struct iio_dev_attr *p)
-{
-	kfree(p->dev_attr.attr.name);
-	kfree(p);
-}
-
-static void __iio_buffer_attr_cleanup(struct iio_dev *indio_dev)
-{
-	struct iio_dev_attr *p, *n;
-	struct iio_buffer *buffer = indio_dev->buffer;
-
-	list_for_each_entry_safe(p, n,
-				 &buffer->scan_el_dev_attr_list, l)
-		iio_buffer_remove_and_free_scan_dev_attr(indio_dev, p);
-}
-
 static const char * const iio_scan_elements_group_name = "scan_elements";
 
 int iio_buffer_register(struct iio_dev *indio_dev,
@@ -367,7 +350,7 @@ int iio_buffer_register(struct iio_dev *indio_dev,
 error_free_scan_mask:
 	kfree(buffer->scan_mask);
 error_cleanup_dynamic:
-	__iio_buffer_attr_cleanup(indio_dev);
+	iio_free_chan_devattr_list(&buffer->scan_el_dev_attr_list);
 
 	return ret;
 }
@@ -377,7 +360,7 @@ void iio_buffer_unregister(struct iio_dev *indio_dev)
 {
 	kfree(indio_dev->buffer->scan_mask);
 	kfree(indio_dev->buffer->scan_el_group.attrs);
-	__iio_buffer_attr_cleanup(indio_dev);
+	iio_free_chan_devattr_list(&indio_dev->buffer->scan_el_dev_attr_list);
 }
 EXPORT_SYMBOL(iio_buffer_unregister);
 
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index dc24a9b3d325..572982fe3155 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -794,11 +794,22 @@ static int iio_device_add_channel_sysfs(struct iio_dev *indio_dev,
 	return attrcount;
 }
 
-static void iio_device_remove_and_free_read_attr(struct iio_dev *indio_dev,
-						 struct iio_dev_attr *p)
+/**
+ * iio_free_chan_devattr_list() - Free a list of IIO device attributes
+ * @attr_list: List of IIO device attributes
+ *
+ * This function frees the memory allocated for each of the IIO device
+ * attributes in the list. Note: if you want to reuse the list after calling
+ * this function you have to reinitialize it using INIT_LIST_HEAD().
+ */
+void iio_free_chan_devattr_list(struct list_head *attr_list)
 {
-	kfree(p->dev_attr.attr.name);
-	kfree(p);
+	struct iio_dev_attr *p, *n;
+
+	list_for_each_entry_safe(p, n, attr_list, l) {
+		kfree(p->dev_attr.attr.name);
+		kfree(p);
+	}
 }
 
 static ssize_t iio_show_dev_name(struct device *dev,
@@ -814,7 +825,7 @@ static DEVICE_ATTR(name, S_IRUGO, iio_show_dev_name, NULL);
 static int iio_device_register_sysfs(struct iio_dev *indio_dev)
 {
 	int i, ret = 0, attrcount, attrn, attrcount_orig = 0;
-	struct iio_dev_attr *p, *n;
+	struct iio_dev_attr *p;
 	struct attribute **attr;
 
 	/* First count elements in any existing group */
@@ -867,11 +878,7 @@ static int iio_device_register_sysfs(struct iio_dev *indio_dev)
 	return 0;
 
 error_clear_attrs:
-	list_for_each_entry_safe(p, n,
-				 &indio_dev->channel_attr_list, l) {
-		list_del(&p->l);
-		iio_device_remove_and_free_read_attr(indio_dev, p);
-	}
+	iio_free_chan_devattr_list(&indio_dev->channel_attr_list);
 
 	return ret;
 }
@@ -879,12 +886,7 @@ error_clear_attrs:
 static void iio_device_unregister_sysfs(struct iio_dev *indio_dev)
 {
 
-	struct iio_dev_attr *p, *n;
-
-	list_for_each_entry_safe(p, n, &indio_dev->channel_attr_list, l) {
-		list_del(&p->l);
-		iio_device_remove_and_free_read_attr(indio_dev, p);
-	}
+	iio_free_chan_devattr_list(&indio_dev->channel_attr_list);
 	kfree(indio_dev->chan_attr_group.attrs);
 }
 
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index d251f30fb739..4a3fd5acda94 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -350,17 +350,6 @@ error_ret:
 	return ret;
 }
 
-static inline void __iio_remove_event_config_attrs(struct iio_dev *indio_dev)
-{
-	struct iio_dev_attr *p, *n;
-	list_for_each_entry_safe(p, n,
-				 &indio_dev->event_interface->
-				 dev_attr_list, l) {
-		kfree(p->dev_attr.attr.name);
-		kfree(p);
-	}
-}
-
 static inline int __iio_add_event_config_attrs(struct iio_dev *indio_dev)
 {
 	int j, ret, attrcount = 0;
@@ -452,7 +441,7 @@ int iio_device_register_eventset(struct iio_dev *indio_dev)
 	return 0;
 
 error_free_setup_event_lines:
-	__iio_remove_event_config_attrs(indio_dev);
+	iio_free_chan_devattr_list(&indio_dev->event_interface->dev_attr_list);
 	kfree(indio_dev->event_interface);
 error_ret:
 
@@ -477,7 +466,7 @@ void iio_device_unregister_eventset(struct iio_dev *indio_dev)
 {
 	if (indio_dev->event_interface == NULL)
 		return;
-	__iio_remove_event_config_attrs(indio_dev);
+	iio_free_chan_devattr_list(&indio_dev->event_interface->dev_attr_list);
 	kfree(indio_dev->event_interface->group.attrs);
 	kfree(indio_dev->event_interface);
 }
-- 
cgit 


From 11cb454f092397b8cb1ba478efaa5743bea604a2 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Mon, 7 Oct 2013 13:42:00 +0100
Subject: staging: iio: generic_buffer: initialize ret
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The `ret´ variable is only initialized in the error case. For some reason
it was always != 0 while I played with generic_buffer so here is a patch.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/Documentation/iio_utils.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/iio/Documentation/iio_utils.h b/drivers/staging/iio/Documentation/iio_utils.h
index cf32ae099cd6..35154d60faf6 100644
--- a/drivers/staging/iio/Documentation/iio_utils.h
+++ b/drivers/staging/iio/Documentation/iio_utils.h
@@ -502,7 +502,7 @@ inline int find_type_by_name(const char *name, const char *type)
 
 inline int _write_sysfs_int(char *filename, char *basedir, int val, int verify)
 {
-	int ret;
+	int ret = 0;
 	FILE *sysfsfp;
 	int test;
 	char *temp = malloc(strlen(basedir) + strlen(filename) + 2);
-- 
cgit 


From 3661f3f5e961f73d40d93495c0de6711dabe6f8d Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 15:11:00 +0100
Subject: iio: Factor IIO value formating into its own function

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/iio_core.h          |  2 ++
 drivers/iio/industrialio-core.c | 38 ++++++++++++++++++++++++++------------
 2 files changed, 28 insertions(+), 12 deletions(-)

diff --git a/drivers/iio/iio_core.h b/drivers/iio/iio_core.h
index 9939917033ca..f6db6af36ba6 100644
--- a/drivers/iio/iio_core.h
+++ b/drivers/iio/iio_core.h
@@ -35,6 +35,8 @@ int __iio_add_chan_devattr(const char *postfix,
 			   struct list_head *attr_list);
 void iio_free_chan_devattr_list(struct list_head *attr_list);
 
+ssize_t iio_format_value(char *buf, unsigned int type, int val, int val2);
+
 /* Event interface flags */
 #define IIO_BUSY_BIT_POS 1
 
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 572982fe3155..f7211576abe5 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -363,22 +363,20 @@ ssize_t iio_enum_write(struct iio_dev *indio_dev,
 }
 EXPORT_SYMBOL_GPL(iio_enum_write);
 
-static ssize_t iio_read_channel_info(struct device *dev,
-				     struct device_attribute *attr,
-				     char *buf)
+/**
+ * iio_format_value() - Formats a IIO value into its string representation
+ * @buf: The buffer to which the formated value gets written
+ * @type: One of the IIO_VAL_... constants. This decides how the val and val2
+ *        parameters are formatted.
+ * @val: First part of the value, exact meaning depends on the type parameter.
+ * @val2: Second part of the value, exact meaning depends on the type parameter.
+ */
+ssize_t iio_format_value(char *buf, unsigned int type, int val, int val2)
 {
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	unsigned long long tmp;
-	int val, val2;
 	bool scale_db = false;
-	int ret = indio_dev->info->read_raw(indio_dev, this_attr->c,
-					    &val, &val2, this_attr->address);
 
-	if (ret < 0)
-		return ret;
-
-	switch (ret) {
+	switch (type) {
 	case IIO_VAL_INT:
 		return sprintf(buf, "%d\n", val);
 	case IIO_VAL_INT_PLUS_MICRO_DB:
@@ -410,6 +408,22 @@ static ssize_t iio_read_channel_info(struct device *dev,
 	}
 }
 
+static ssize_t iio_read_channel_info(struct device *dev,
+				     struct device_attribute *attr,
+				     char *buf)
+{
+	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
+	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
+	int val, val2;
+	int ret = indio_dev->info->read_raw(indio_dev, this_attr->c,
+					    &val, &val2, this_attr->address);
+
+	if (ret < 0)
+		return ret;
+
+	return iio_format_value(buf, ret, val, val2);
+}
+
 /**
  * iio_str_to_fixpoint() - Parse a fixed-point number from a string
  * @str: The string to parse
-- 
cgit 


From b4e3ac0a204ff1775c69924510f49922a56910a7 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 15:11:00 +0100
Subject: iio: Extend the event config interface

The event configuration interface of the IIO framework has not been getting the
same attention as other parts. As a result it has not seen the same improvements
as e.g. the channel interface has seen with the introduction of the channel spec
struct. Currently all the event config callbacks take a u64 (the so called event
code) to pass all the different information about for which event the callback
is invoked. The callback function then has to extract the information it is
interested in using some macros with rather long names. Most information encoded
in the event code comes straight from the iio_chan_spec struct the event was
registered for. Since we always have a handle to the channel spec when we call
the event callbacks the first step is to add the channel spec as a parameter to
the event callbacks. The two remaining things encoded in the event code are the
type and direction of the event. Instead of passing them in one parameter, add
one parameter for each of them and remove the eventcode from the event
callbacks. The patch also adds a new iio_event_info parameter to the
{read,write}_event_value callbacks. This makes it possible, similar to the
iio_chan_info_enum for channels, to specify additional properties other than
just the value for an event. Furthermore the new interface will allow to
register shared events. This is e.g. useful if a device allows configuring a
threshold event, but the threshold setting is the same for all channels.

To implement this the patch adds a new iio_event_spec struct which is similar to
the iio_chan_spec struct. It as two field to specify the type and the direction
of the event. Furthermore it has a mask field for each one of the different
iio_shared_by types. These mask fields holds which kind of attributes should be
registered for the event. Creation of the attributes follows the same rules as
the for the channel attributes. E.g. for the separate_mask there will be a
attribute for each channel with this event, for the shared_by_type there will
only be one attribute per channel type. The iio_chan_spec struct gets two new
fields, 'event_spec' and 'num_event_specs', which is used to specify which the
events for this channel. These two fields are going to replace the channel's
event_mask field.

For now both the old and the new event config interface coexist, but over the
few patches all drivers will be converted from the old to the new interface.
Once that is done all code for supporting the old interface will be removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/industrialio-event.c | 193 ++++++++++++++++++++++++++++++++++-----
 include/linux/iio/events.h       |  14 ---
 include/linux/iio/iio.h          |  58 ++++++++++++
 include/linux/iio/types.h        |  19 ++++
 4 files changed, 248 insertions(+), 36 deletions(-)

diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index 4a3fd5acda94..b7a5d7cbed42 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -201,6 +201,26 @@ static const char * const iio_ev_dir_text[] = {
 	[IIO_EV_DIR_FALLING] = "falling"
 };
 
+static const char * const iio_ev_info_text[] = {
+	[IIO_EV_INFO_ENABLE] = "en",
+	[IIO_EV_INFO_VALUE] = "value",
+};
+
+static enum iio_event_direction iio_ev_attr_dir(struct iio_dev_attr *attr)
+{
+	return attr->c->event_spec[attr->address & 0xffff].dir;
+}
+
+static enum iio_event_type iio_ev_attr_type(struct iio_dev_attr *attr)
+{
+	return attr->c->event_spec[attr->address & 0xffff].type;
+}
+
+static enum iio_event_info iio_ev_attr_info(struct iio_dev_attr *attr)
+{
+	return (attr->address >> 16) & 0xffff;
+}
+
 static ssize_t iio_ev_state_store(struct device *dev,
 				  struct device_attribute *attr,
 				  const char *buf,
@@ -215,9 +235,14 @@ static ssize_t iio_ev_state_store(struct device *dev,
 	if (ret < 0)
 		return ret;
 
-	ret = indio_dev->info->write_event_config(indio_dev,
-						  this_attr->address,
-						  val);
+	if (indio_dev->info->write_event_config)
+		ret = indio_dev->info->write_event_config(indio_dev,
+			this_attr->address, val);
+	else
+		ret = indio_dev->info->write_event_config_new(indio_dev,
+			this_attr->c, iio_ev_attr_type(this_attr),
+			iio_ev_attr_dir(this_attr), val);
+
 	return (ret < 0) ? ret : len;
 }
 
@@ -227,9 +252,15 @@ static ssize_t iio_ev_state_show(struct device *dev,
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	int val = indio_dev->info->read_event_config(indio_dev,
-						     this_attr->address);
+	int val;
 
+	if (indio_dev->info->read_event_config)
+		val = indio_dev->info->read_event_config(indio_dev,
+			this_attr->address);
+	else
+		val = indio_dev->info->read_event_config_new(indio_dev,
+			this_attr->c, iio_ev_attr_type(this_attr),
+			iio_ev_attr_dir(this_attr));
 	if (val < 0)
 		return val;
 	else
@@ -242,14 +273,24 @@ static ssize_t iio_ev_value_show(struct device *dev,
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	int val, ret;
-
-	ret = indio_dev->info->read_event_value(indio_dev,
-						this_attr->address, &val);
-	if (ret < 0)
-		return ret;
+	int val, val2;
+	int ret;
 
-	return sprintf(buf, "%d\n", val);
+	if (indio_dev->info->read_event_value) {
+		ret = indio_dev->info->read_event_value(indio_dev,
+			this_attr->address, &val);
+		if (ret < 0)
+			return ret;
+		return sprintf(buf, "%d\n", val);
+	} else {
+		ret = indio_dev->info->read_event_value_new(indio_dev,
+			this_attr->c, iio_ev_attr_type(this_attr),
+			iio_ev_attr_dir(this_attr), iio_ev_attr_info(this_attr),
+			&val, &val2);
+		if (ret < 0)
+			return ret;
+		return iio_format_value(buf, ret, val, val2);
+	}
 }
 
 static ssize_t iio_ev_value_store(struct device *dev,
@@ -259,25 +300,120 @@ static ssize_t iio_ev_value_store(struct device *dev,
 {
 	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	int val;
+	int val, val2;
 	int ret;
 
-	if (!indio_dev->info->write_event_value)
+	if (!indio_dev->info->write_event_value &&
+		!indio_dev->info->write_event_value_new)
 		return -EINVAL;
 
-	ret = kstrtoint(buf, 10, &val);
-	if (ret)
-		return ret;
-
-	ret = indio_dev->info->write_event_value(indio_dev, this_attr->address,
-						 val);
+	if (indio_dev->info->write_event_value) {
+		ret = kstrtoint(buf, 10, &val);
+		if (ret)
+			return ret;
+		ret = indio_dev->info->write_event_value(indio_dev,
+			this_attr->address, val);
+	} else {
+		ret = iio_str_to_fixpoint(buf, 100000, &val, &val2);
+		if (ret)
+			return ret;
+		ret = indio_dev->info->write_event_value_new(indio_dev,
+			this_attr->c, iio_ev_attr_type(this_attr),
+			iio_ev_attr_dir(this_attr), iio_ev_attr_info(this_attr),
+			val, val2);
+	}
 	if (ret < 0)
 		return ret;
 
 	return len;
 }
 
-static int iio_device_add_event_sysfs(struct iio_dev *indio_dev,
+static int iio_device_add_event(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *chan, unsigned int spec_index,
+	enum iio_event_type type, enum iio_event_direction dir,
+	enum iio_shared_by shared_by, const unsigned long *mask)
+{
+	ssize_t (*show)(struct device *, struct device_attribute *, char *);
+	ssize_t (*store)(struct device *, struct device_attribute *,
+		const char *, size_t);
+	unsigned int attrcount = 0;
+	unsigned int i;
+	char *postfix;
+	int ret;
+
+	for_each_set_bit(i, mask, sizeof(*mask)) {
+		postfix = kasprintf(GFP_KERNEL, "%s_%s_%s",
+				iio_ev_type_text[type], iio_ev_dir_text[dir],
+				iio_ev_info_text[i]);
+		if (postfix == NULL)
+			return -ENOMEM;
+
+		if (i == IIO_EV_INFO_ENABLE) {
+			show = iio_ev_state_show;
+			store = iio_ev_state_store;
+		} else {
+			show = iio_ev_value_show;
+			store = iio_ev_value_store;
+		}
+
+		ret = __iio_add_chan_devattr(postfix, chan, show, store,
+			 (i << 16) | spec_index, shared_by, &indio_dev->dev,
+			&indio_dev->event_interface->dev_attr_list);
+		kfree(postfix);
+
+		if (ret)
+			return ret;
+
+		attrcount++;
+	}
+
+	return attrcount;
+}
+
+static int iio_device_add_event_sysfs_new(struct iio_dev *indio_dev,
+	struct iio_chan_spec const *chan)
+{
+	int ret = 0, i, attrcount = 0;
+	enum iio_event_direction dir;
+	enum iio_event_type type;
+
+	for (i = 0; i < chan->num_event_specs; i++) {
+		type = chan->event_spec[i].type;
+		dir = chan->event_spec[i].dir;
+
+		ret = iio_device_add_event(indio_dev, chan, i, type, dir,
+			IIO_SEPARATE, &chan->event_spec[i].mask_separate);
+		if (ret < 0)
+			goto error_ret;
+		attrcount += ret;
+
+		ret = iio_device_add_event(indio_dev, chan, i, type, dir,
+			IIO_SHARED_BY_TYPE,
+			&chan->event_spec[i].mask_shared_by_type);
+		if (ret < 0)
+			goto error_ret;
+		attrcount += ret;
+
+		ret = iio_device_add_event(indio_dev, chan, i, type, dir,
+			IIO_SHARED_BY_DIR,
+			&chan->event_spec[i].mask_shared_by_dir);
+		if (ret < 0)
+			goto error_ret;
+		attrcount += ret;
+
+		ret = iio_device_add_event(indio_dev, chan, i, type, dir,
+			IIO_SHARED_BY_ALL,
+			&chan->event_spec[i].mask_shared_by_all);
+		if (ret < 0)
+			goto error_ret;
+		attrcount += ret;
+	}
+	ret = attrcount;
+error_ret:
+	return ret;
+}
+
+static int iio_device_add_event_sysfs_old(struct iio_dev *indio_dev,
 				      struct iio_chan_spec const *chan)
 {
 	int ret = 0, i, attrcount = 0;
@@ -350,6 +486,16 @@ error_ret:
 	return ret;
 }
 
+
+static int iio_device_add_event_sysfs(struct iio_dev *indio_dev,
+				      struct iio_chan_spec const *chan)
+{
+	if (chan->event_mask)
+		return iio_device_add_event_sysfs_old(indio_dev, chan);
+	else
+		return iio_device_add_event_sysfs_new(indio_dev, chan);
+}
+
 static inline int __iio_add_event_config_attrs(struct iio_dev *indio_dev)
 {
 	int j, ret, attrcount = 0;
@@ -369,9 +515,12 @@ static bool iio_check_for_dynamic_events(struct iio_dev *indio_dev)
 {
 	int j;
 
-	for (j = 0; j < indio_dev->num_channels; j++)
+	for (j = 0; j < indio_dev->num_channels; j++) {
 		if (indio_dev->channels[j].event_mask != 0)
 			return true;
+		if (indio_dev->channels[j].num_event_specs != 0)
+			return true;
+	}
 	return false;
 }
 
diff --git a/include/linux/iio/events.h b/include/linux/iio/events.h
index 13ce220c7003..5dab2c41031f 100644
--- a/include/linux/iio/events.h
+++ b/include/linux/iio/events.h
@@ -26,20 +26,6 @@ struct iio_event_data {
 
 #define IIO_GET_EVENT_FD_IOCTL _IOR('i', 0x90, int)
 
-enum iio_event_type {
-	IIO_EV_TYPE_THRESH,
-	IIO_EV_TYPE_MAG,
-	IIO_EV_TYPE_ROC,
-	IIO_EV_TYPE_THRESH_ADAPTIVE,
-	IIO_EV_TYPE_MAG_ADAPTIVE,
-};
-
-enum iio_event_direction {
-	IIO_EV_DIR_EITHER,
-	IIO_EV_DIR_RISING,
-	IIO_EV_DIR_FALLING,
-};
-
 /**
  * IIO_EVENT_CODE() - create event identifier
  * @chan_type:	Type of the channel. Should be one of enum iio_chan_type.
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h
index ac1cb8f1858c..256a90a1bea6 100644
--- a/include/linux/iio/iio.h
+++ b/include/linux/iio/iio.h
@@ -138,6 +138,29 @@ ssize_t iio_enum_write(struct iio_dev *indio_dev,
 	.private = (uintptr_t)(_e), \
 }
 
+/**
+ * struct iio_event_spec - specification for a channel event
+ * @type:		    Type of the event
+ * @dir:		    Direction of the event
+ * @mask_separate:	    Bit mask of enum iio_event_info values. Attributes
+ *			    set in this mask will be registered per channel.
+ * @mask_shared_by_type:    Bit mask of enum iio_event_info values. Attributes
+ *			    set in this mask will be shared by channel type.
+ * @mask_shared_by_dir:	    Bit mask of enum iio_event_info values. Attributes
+ *			    set in this mask will be shared by channel type and
+ *			    direction.
+ * @mask_shared_by_all:	    Bit mask of enum iio_event_info values. Attributes
+ *			    set in this mask will be shared by all channels.
+ */
+struct iio_event_spec {
+	enum iio_event_type type;
+	enum iio_event_direction dir;
+	unsigned long mask_separate;
+	unsigned long mask_shared_by_type;
+	unsigned long mask_shared_by_dir;
+	unsigned long mask_shared_by_all;
+};
+
 /**
  * struct iio_chan_spec - specification of a single channel
  * @type:		What type of measurement is the channel making.
@@ -163,6 +186,9 @@ ssize_t iio_enum_write(struct iio_dev *indio_dev,
  * @info_mask_shared_by_all: What information is to be exported that is shared
  *			by all channels.
  * @event_mask:		What events can this channel produce.
+ * @event_spec:		Array of events which should be registered for this
+ *			channel.
+ * @num_event_specs:	Size of the event_spec array.
  * @ext_info:		Array of extended info attributes for this channel.
  *			The array is NULL terminated, the last element should
  *			have its name field set to NULL.
@@ -201,6 +227,8 @@ struct iio_chan_spec {
 	long			info_mask_shared_by_dir;
 	long			info_mask_shared_by_all;
 	long			event_mask;
+	const struct iio_event_spec *event_spec;
+	unsigned int		num_event_specs;
 	const struct iio_chan_spec_ext_info *ext_info;
 	const char		*extend_name;
 	const char		*datasheet_name;
@@ -283,6 +311,12 @@ struct iio_dev;
  *			is event dependant. event_code specifies which event.
  * @write_event_value:	write the value associated with the event.
  *			Meaning is event dependent.
+ * @read_event_config_new: find out if the event is enabled. New style interface.
+ * @write_event_config_new: set if the event is enabled. New style interface.
+ * @read_event_value_new: read a configuration value associated with the event.
+ *                         New style interface.
+ * @write_event_value_new: write a configuration value for the event. New style
+ *			   interface.
  * @validate_trigger:	function to validate the trigger when the
  *			current trigger gets changed.
  * @update_scan_mode:	function to configure device and scan buffer when
@@ -323,6 +357,30 @@ struct iio_info {
 	int (*write_event_value)(struct iio_dev *indio_dev,
 				 u64 event_code,
 				 int val);
+
+	int (*read_event_config_new)(struct iio_dev *indio_dev,
+				 const struct iio_chan_spec *chan,
+				 enum iio_event_type type,
+				 enum iio_event_direction dir);
+
+	int (*write_event_config_new)(struct iio_dev *indio_dev,
+				  const struct iio_chan_spec *chan,
+				  enum iio_event_type type,
+				  enum iio_event_direction dir,
+				  int state);
+
+	int (*read_event_value_new)(struct iio_dev *indio_dev,
+				const struct iio_chan_spec *chan,
+				enum iio_event_type type,
+				enum iio_event_direction dir,
+				enum iio_event_info info, int *val, int *val2);
+
+	int (*write_event_value_new)(struct iio_dev *indio_dev,
+				 const struct iio_chan_spec *chan,
+				 enum iio_event_type type,
+				 enum iio_event_direction dir,
+				 enum iio_event_info info, int val, int val2);
+
 	int (*validate_trigger)(struct iio_dev *indio_dev,
 				struct iio_trigger *trig);
 	int (*update_scan_mode)(struct iio_dev *indio_dev,
diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h
index 88bf0f0d27b4..18339ef4ff5d 100644
--- a/include/linux/iio/types.h
+++ b/include/linux/iio/types.h
@@ -54,6 +54,25 @@ enum iio_modifier {
 	IIO_MOD_LIGHT_BLUE,
 };
 
+enum iio_event_type {
+	IIO_EV_TYPE_THRESH,
+	IIO_EV_TYPE_MAG,
+	IIO_EV_TYPE_ROC,
+	IIO_EV_TYPE_THRESH_ADAPTIVE,
+	IIO_EV_TYPE_MAG_ADAPTIVE,
+};
+
+enum iio_event_info {
+	IIO_EV_INFO_ENABLE,
+	IIO_EV_INFO_VALUE,
+};
+
+enum iio_event_direction {
+	IIO_EV_DIR_EITHER,
+	IIO_EV_DIR_RISING,
+	IIO_EV_DIR_FALLING,
+};
+
 #define IIO_VAL_INT 1
 #define IIO_VAL_INT_PLUS_MICRO 2
 #define IIO_VAL_INT_PLUS_NANO 3
-- 
cgit 


From e4ec84f83deb9792ee8277805ca03f9349dc1c93 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 15:11:00 +0100
Subject: iio:max1363: Switch to new event config interface

Switch the max1363 driver to the new IIO event config interface as the old one
is going to be removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/max1363.c | 200 +++++++++++++++++++++++++---------------------
 1 file changed, 110 insertions(+), 90 deletions(-)

diff --git a/drivers/iio/adc/max1363.c b/drivers/iio/adc/max1363.c
index 2b34d2f02cf3..cc07b3765fe0 100644
--- a/drivers/iio/adc/max1363.c
+++ b/drivers/iio/adc/max1363.c
@@ -422,11 +422,21 @@ static const enum max1363_modes max1363_mode_list[] = {
 	d0m1to2m3, d1m0to3m2,
 };
 
-#define MAX1363_EV_M						\
-	(IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING)	\
-	 | IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING))
+static const struct iio_event_spec max1363_events[] = {
+	{
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	},
+};
 
-#define MAX1363_CHAN_U(num, addr, si, bits, evmask)			\
+#define MAX1363_CHAN_U(num, addr, si, bits, ev_spec, num_ev_spec)	\
 	{								\
 		.type = IIO_VOLTAGE,					\
 		.indexed = 1,						\
@@ -442,11 +452,12 @@ static const enum max1363_modes max1363_mode_list[] = {
 			.endianness = IIO_BE,				\
 		},							\
 		.scan_index = si,					\
-		.event_mask = evmask,					\
+		.event_spec = ev_spec,					\
+		.num_event_specs = num_ev_spec,				\
 	}
 
 /* bipolar channel */
-#define MAX1363_CHAN_B(num, num2, addr, si, bits, evmask)		\
+#define MAX1363_CHAN_B(num, num2, addr, si, bits, ev_spec, num_ev_spec)	\
 	{								\
 		.type = IIO_VOLTAGE,					\
 		.differential = 1,					\
@@ -464,28 +475,32 @@ static const enum max1363_modes max1363_mode_list[] = {
 			.endianness = IIO_BE,				\
 		},							\
 		.scan_index = si,					\
-		.event_mask = evmask,					\
+		.event_spec = ev_spec,					\
+		.num_event_specs = num_ev_spec,				\
 	}
 
-#define MAX1363_4X_CHANS(bits, em) {			\
-	MAX1363_CHAN_U(0, _s0, 0, bits, em),		\
-	MAX1363_CHAN_U(1, _s1, 1, bits, em),		\
-	MAX1363_CHAN_U(2, _s2, 2, bits, em),		\
-	MAX1363_CHAN_U(3, _s3, 3, bits, em),		\
-	MAX1363_CHAN_B(0, 1, d0m1, 4, bits, em),	\
-	MAX1363_CHAN_B(2, 3, d2m3, 5, bits, em),	\
-	MAX1363_CHAN_B(1, 0, d1m0, 6, bits, em),	\
-	MAX1363_CHAN_B(3, 2, d3m2, 7, bits, em),	\
-	IIO_CHAN_SOFT_TIMESTAMP(8)			\
+#define MAX1363_4X_CHANS(bits, ev_spec, num_ev_spec) {			\
+	MAX1363_CHAN_U(0, _s0, 0, bits, ev_spec, num_ev_spec),		\
+	MAX1363_CHAN_U(1, _s1, 1, bits, ev_spec, num_ev_spec),		\
+	MAX1363_CHAN_U(2, _s2, 2, bits, ev_spec, num_ev_spec),		\
+	MAX1363_CHAN_U(3, _s3, 3, bits, ev_spec, num_ev_spec),		\
+	MAX1363_CHAN_B(0, 1, d0m1, 4, bits, ev_spec, num_ev_spec),	\
+	MAX1363_CHAN_B(2, 3, d2m3, 5, bits, ev_spec, num_ev_spec),	\
+	MAX1363_CHAN_B(1, 0, d1m0, 6, bits, ev_spec, num_ev_spec),	\
+	MAX1363_CHAN_B(3, 2, d3m2, 7, bits, ev_spec, num_ev_spec),	\
+	IIO_CHAN_SOFT_TIMESTAMP(8)					\
 	}
 
-static const struct iio_chan_spec max1036_channels[] = MAX1363_4X_CHANS(8, 0);
-static const struct iio_chan_spec max1136_channels[] = MAX1363_4X_CHANS(10, 0);
-static const struct iio_chan_spec max1236_channels[] = MAX1363_4X_CHANS(12, 0);
+static const struct iio_chan_spec max1036_channels[] =
+	MAX1363_4X_CHANS(8, NULL, 0);
+static const struct iio_chan_spec max1136_channels[] =
+	MAX1363_4X_CHANS(10, NULL, 0);
+static const struct iio_chan_spec max1236_channels[] =
+	MAX1363_4X_CHANS(12, NULL, 0);
 static const struct iio_chan_spec max1361_channels[] =
-	MAX1363_4X_CHANS(10, MAX1363_EV_M);
+	MAX1363_4X_CHANS(10, max1363_events, ARRAY_SIZE(max1363_events));
 static const struct iio_chan_spec max1363_channels[] =
-	MAX1363_4X_CHANS(12, MAX1363_EV_M);
+	MAX1363_4X_CHANS(12, max1363_events, ARRAY_SIZE(max1363_events));
 
 /* Applies to max1236, max1237 */
 static const enum max1363_modes max1236_mode_list[] = {
@@ -509,32 +524,32 @@ static const enum max1363_modes max1238_mode_list[] = {
 	d6m7to8m9, d6m7to10m11, d7m6to9m8, d7m6to11m10,
 };
 
-#define MAX1363_12X_CHANS(bits) {			\
-	MAX1363_CHAN_U(0, _s0, 0, bits, 0),		\
-	MAX1363_CHAN_U(1, _s1, 1, bits, 0),		\
-	MAX1363_CHAN_U(2, _s2, 2, bits, 0),		\
-	MAX1363_CHAN_U(3, _s3, 3, bits, 0),		\
-	MAX1363_CHAN_U(4, _s4, 4, bits, 0),		\
-	MAX1363_CHAN_U(5, _s5, 5, bits, 0),		\
-	MAX1363_CHAN_U(6, _s6, 6, bits, 0),		\
-	MAX1363_CHAN_U(7, _s7, 7, bits, 0),		\
-	MAX1363_CHAN_U(8, _s8, 8, bits, 0),		\
-	MAX1363_CHAN_U(9, _s9, 9, bits, 0),		\
-	MAX1363_CHAN_U(10, _s10, 10, bits, 0),		\
-	MAX1363_CHAN_U(11, _s11, 11, bits, 0),		\
-	MAX1363_CHAN_B(0, 1, d0m1, 12, bits, 0),	\
-	MAX1363_CHAN_B(2, 3, d2m3, 13, bits, 0),	\
-	MAX1363_CHAN_B(4, 5, d4m5, 14, bits, 0),	\
-	MAX1363_CHAN_B(6, 7, d6m7, 15, bits, 0),	\
-	MAX1363_CHAN_B(8, 9, d8m9, 16, bits, 0),	\
-	MAX1363_CHAN_B(10, 11, d10m11, 17, bits, 0),	\
-	MAX1363_CHAN_B(1, 0, d1m0, 18, bits, 0),	\
-	MAX1363_CHAN_B(3, 2, d3m2, 19, bits, 0),	\
-	MAX1363_CHAN_B(5, 4, d5m4, 20, bits, 0),	\
-	MAX1363_CHAN_B(7, 6, d7m6, 21, bits, 0),	\
-	MAX1363_CHAN_B(9, 8, d9m8, 22, bits, 0),	\
-	MAX1363_CHAN_B(11, 10, d11m10, 23, bits, 0),	\
-	IIO_CHAN_SOFT_TIMESTAMP(24)			\
+#define MAX1363_12X_CHANS(bits) {				\
+	MAX1363_CHAN_U(0, _s0, 0, bits, NULL, 0),		\
+	MAX1363_CHAN_U(1, _s1, 1, bits, NULL, 0),		\
+	MAX1363_CHAN_U(2, _s2, 2, bits, NULL, 0),		\
+	MAX1363_CHAN_U(3, _s3, 3, bits, NULL, 0),		\
+	MAX1363_CHAN_U(4, _s4, 4, bits, NULL, 0),		\
+	MAX1363_CHAN_U(5, _s5, 5, bits, NULL, 0),		\
+	MAX1363_CHAN_U(6, _s6, 6, bits, NULL, 0),		\
+	MAX1363_CHAN_U(7, _s7, 7, bits, NULL, 0),		\
+	MAX1363_CHAN_U(8, _s8, 8, bits, NULL, 0),		\
+	MAX1363_CHAN_U(9, _s9, 9, bits, NULL, 0),		\
+	MAX1363_CHAN_U(10, _s10, 10, bits, NULL, 0),		\
+	MAX1363_CHAN_U(11, _s11, 11, bits, NULL, 0),		\
+	MAX1363_CHAN_B(0, 1, d0m1, 12, bits, NULL, 0),		\
+	MAX1363_CHAN_B(2, 3, d2m3, 13, bits, NULL, 0),		\
+	MAX1363_CHAN_B(4, 5, d4m5, 14, bits, NULL, 0),		\
+	MAX1363_CHAN_B(6, 7, d6m7, 15, bits, NULL, 0),		\
+	MAX1363_CHAN_B(8, 9, d8m9, 16, bits, NULL, 0),		\
+	MAX1363_CHAN_B(10, 11, d10m11, 17, bits, NULL, 0),	\
+	MAX1363_CHAN_B(1, 0, d1m0, 18, bits, NULL, 0),		\
+	MAX1363_CHAN_B(3, 2, d3m2, 19, bits, NULL, 0),		\
+	MAX1363_CHAN_B(5, 4, d5m4, 20, bits, NULL, 0),		\
+	MAX1363_CHAN_B(7, 6, d7m6, 21, bits, NULL, 0),		\
+	MAX1363_CHAN_B(9, 8, d9m8, 22, bits, NULL, 0),		\
+	MAX1363_CHAN_B(11, 10, d11m10, 23, bits, NULL, 0),	\
+	IIO_CHAN_SOFT_TIMESTAMP(24)				\
 	}
 static const struct iio_chan_spec max1038_channels[] = MAX1363_12X_CHANS(8);
 static const struct iio_chan_spec max1138_channels[] = MAX1363_12X_CHANS(10);
@@ -559,22 +574,22 @@ static const enum max1363_modes max11608_mode_list[] = {
 };
 
 #define MAX1363_8X_CHANS(bits) {			\
-	MAX1363_CHAN_U(0, _s0, 0, bits, 0),		\
-	MAX1363_CHAN_U(1, _s1, 1, bits, 0),		\
-	MAX1363_CHAN_U(2, _s2, 2, bits, 0),		\
-	MAX1363_CHAN_U(3, _s3, 3, bits, 0),		\
-	MAX1363_CHAN_U(4, _s4, 4, bits, 0),		\
-	MAX1363_CHAN_U(5, _s5, 5, bits, 0),		\
-	MAX1363_CHAN_U(6, _s6, 6, bits, 0),		\
-	MAX1363_CHAN_U(7, _s7, 7, bits, 0),		\
-	MAX1363_CHAN_B(0, 1, d0m1, 8, bits, 0),	\
-	MAX1363_CHAN_B(2, 3, d2m3, 9, bits, 0),	\
-	MAX1363_CHAN_B(4, 5, d4m5, 10, bits, 0),	\
-	MAX1363_CHAN_B(6, 7, d6m7, 11, bits, 0),	\
-	MAX1363_CHAN_B(1, 0, d1m0, 12, bits, 0),	\
-	MAX1363_CHAN_B(3, 2, d3m2, 13, bits, 0),	\
-	MAX1363_CHAN_B(5, 4, d5m4, 14, bits, 0),	\
-	MAX1363_CHAN_B(7, 6, d7m6, 15, bits, 0),	\
+	MAX1363_CHAN_U(0, _s0, 0, bits, NULL, 0),	\
+	MAX1363_CHAN_U(1, _s1, 1, bits, NULL, 0),	\
+	MAX1363_CHAN_U(2, _s2, 2, bits, NULL, 0),	\
+	MAX1363_CHAN_U(3, _s3, 3, bits, NULL, 0),	\
+	MAX1363_CHAN_U(4, _s4, 4, bits, NULL, 0),	\
+	MAX1363_CHAN_U(5, _s5, 5, bits, NULL, 0),	\
+	MAX1363_CHAN_U(6, _s6, 6, bits, NULL, 0),	\
+	MAX1363_CHAN_U(7, _s7, 7, bits, NULL, 0),	\
+	MAX1363_CHAN_B(0, 1, d0m1, 8, bits, NULL, 0),	\
+	MAX1363_CHAN_B(2, 3, d2m3, 9, bits, NULL, 0),	\
+	MAX1363_CHAN_B(4, 5, d4m5, 10, bits, NULL, 0),	\
+	MAX1363_CHAN_B(6, 7, d6m7, 11, bits, NULL, 0),	\
+	MAX1363_CHAN_B(1, 0, d1m0, 12, bits, NULL, 0),	\
+	MAX1363_CHAN_B(3, 2, d3m2, 13, bits, NULL, 0),	\
+	MAX1363_CHAN_B(5, 4, d5m4, 14, bits, NULL, 0),	\
+	MAX1363_CHAN_B(7, 6, d7m6, 15, bits, NULL, 0),	\
 	IIO_CHAN_SOFT_TIMESTAMP(16)			\
 }
 static const struct iio_chan_spec max11602_channels[] = MAX1363_8X_CHANS(8);
@@ -586,10 +601,10 @@ static const enum max1363_modes max11644_mode_list[] = {
 };
 
 #define MAX1363_2X_CHANS(bits) {			\
-	MAX1363_CHAN_U(0, _s0, 0, bits, 0),		\
-	MAX1363_CHAN_U(1, _s1, 1, bits, 0),		\
-	MAX1363_CHAN_B(0, 1, d0m1, 2, bits, 0),	\
-	MAX1363_CHAN_B(1, 0, d1m0, 3, bits, 0),	\
+	MAX1363_CHAN_U(0, _s0, 0, bits, NULL, 0),	\
+	MAX1363_CHAN_U(1, _s1, 1, bits, NULL, 0),	\
+	MAX1363_CHAN_B(0, 1, d0m1, 2, bits, NULL, 0),	\
+	MAX1363_CHAN_B(1, 0, d1m0, 3, bits, NULL, 0),	\
 	IIO_CHAN_SOFT_TIMESTAMP(4)			\
 	}
 
@@ -684,20 +699,22 @@ static IIO_CONST_ATTR(sampling_frequency_available,
 		"133000 665000 33300 16600 8300 4200 2000 1000");
 
 static int max1363_read_thresh(struct iio_dev *indio_dev,
-			       u64 event_code,
-			       int *val)
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir, enum iio_event_info info, int *val,
+	int *val2)
 {
 	struct max1363_state *st = iio_priv(indio_dev);
-	if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) == IIO_EV_DIR_FALLING)
-		*val = st->thresh_low[IIO_EVENT_CODE_EXTRACT_CHAN(event_code)];
+	if (dir == IIO_EV_DIR_FALLING)
+		*val = st->thresh_low[chan->channel];
 	else
-		*val = st->thresh_high[IIO_EVENT_CODE_EXTRACT_CHAN(event_code)];
-	return 0;
+		*val = st->thresh_high[chan->channel];
+	return IIO_VAL_INT;
 }
 
 static int max1363_write_thresh(struct iio_dev *indio_dev,
-				u64 event_code,
-				int val)
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir, enum iio_event_info info, int val,
+	int val2)
 {
 	struct max1363_state *st = iio_priv(indio_dev);
 	/* make it handle signed correctly as well */
@@ -712,13 +729,15 @@ static int max1363_write_thresh(struct iio_dev *indio_dev,
 		break;
 	}
 
-	switch (IIO_EVENT_CODE_EXTRACT_DIR(event_code)) {
+	switch (dir) {
 	case IIO_EV_DIR_FALLING:
-		st->thresh_low[IIO_EVENT_CODE_EXTRACT_CHAN(event_code)] = val;
+		st->thresh_low[chan->channel] = val;
 		break;
 	case IIO_EV_DIR_RISING:
-		st->thresh_high[IIO_EVENT_CODE_EXTRACT_CHAN(event_code)] = val;
+		st->thresh_high[chan->channel] = val;
 		break;
+	default:
+		return -EINVAL;
 	}
 
 	return 0;
@@ -763,14 +782,15 @@ static irqreturn_t max1363_event_handler(int irq, void *private)
 }
 
 static int max1363_read_event_config(struct iio_dev *indio_dev,
-				     u64 event_code)
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir)
 {
 	struct max1363_state *st = iio_priv(indio_dev);
 	int val;
-	int number = IIO_EVENT_CODE_EXTRACT_CHAN(event_code);
+	int number = chan->channel;
 
 	mutex_lock(&indio_dev->mlock);
-	if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) == IIO_EV_DIR_FALLING)
+	if (dir == IIO_EV_DIR_FALLING)
 		val = (1 << number) & st->mask_low;
 	else
 		val = (1 << number) & st->mask_high;
@@ -915,17 +935,17 @@ error_ret:
 }
 
 static int max1363_write_event_config(struct iio_dev *indio_dev,
-				      u64 event_code,
-				      int state)
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir, int state)
 {
 	int ret = 0;
 	struct max1363_state *st = iio_priv(indio_dev);
 	u16 unifiedmask;
-	int number = IIO_EVENT_CODE_EXTRACT_CHAN(event_code);
+	int number = chan->channel;
 
 	mutex_lock(&indio_dev->mlock);
 	unifiedmask = st->mask_low | st->mask_high;
-	if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) == IIO_EV_DIR_FALLING) {
+	if (dir == IIO_EV_DIR_FALLING) {
 
 		if (state == 0)
 			st->mask_low &= ~(1 << number);
@@ -993,10 +1013,10 @@ static const struct iio_info max1238_info = {
 };
 
 static const struct iio_info max1363_info = {
-	.read_event_value = &max1363_read_thresh,
-	.write_event_value = &max1363_write_thresh,
-	.read_event_config = &max1363_read_event_config,
-	.write_event_config = &max1363_write_event_config,
+	.read_event_value_new = &max1363_read_thresh,
+	.write_event_value_new = &max1363_write_thresh,
+	.read_event_config_new = &max1363_read_event_config,
+	.write_event_config_new = &max1363_write_event_config,
 	.read_raw = &max1363_read_raw,
 	.update_scan_mode = &max1363_update_scan_mode,
 	.driver_module = THIS_MODULE,
-- 
cgit 


From 1eefd62b63e1c67d2c722a00e05fbe0742021c14 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 15:11:00 +0100
Subject: iio:ad5421: Switch to new event config interface

Switch the ad5421 driver to the new IIO event config interface as the old one
is going to be removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/ad5421.c | 62 ++++++++++++++++++++++++++++++++++--------------
 1 file changed, 44 insertions(+), 18 deletions(-)

diff --git a/drivers/iio/dac/ad5421.c b/drivers/iio/dac/ad5421.c
index 567c4bd546e5..c44afeb06f56 100644
--- a/drivers/iio/dac/ad5421.c
+++ b/drivers/iio/dac/ad5421.c
@@ -80,6 +80,29 @@ struct ad5421_state {
 	} data[2] ____cacheline_aligned;
 };
 
+static const struct iio_event_spec ad5421_current_event[] = {
+	{
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	},
+};
+
+static const struct iio_event_spec ad5421_temp_event[] = {
+	{
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	},
+};
+
 static const struct iio_chan_spec ad5421_channels[] = {
 	{
 		.type = IIO_CURRENT,
@@ -92,13 +115,14 @@ static const struct iio_chan_spec ad5421_channels[] = {
 		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) |
 			BIT(IIO_CHAN_INFO_OFFSET),
 		.scan_type = IIO_ST('u', 16, 16, 0),
-		.event_mask = IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING) |
-			IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING),
+		.event_spec = ad5421_current_event,
+		.num_event_specs = ARRAY_SIZE(ad5421_current_event),
 	},
 	{
 		.type = IIO_TEMP,
 		.channel = -1,
-		.event_mask = IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING),
+		.event_spec = ad5421_temp_event,
+		.num_event_specs = ARRAY_SIZE(ad5421_temp_event),
 	},
 };
 
@@ -353,15 +377,15 @@ static int ad5421_write_raw(struct iio_dev *indio_dev,
 }
 
 static int ad5421_write_event_config(struct iio_dev *indio_dev,
-	u64 event_code, int state)
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir, int state)
 {
 	struct ad5421_state *st = iio_priv(indio_dev);
 	unsigned int mask;
 
-	switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) {
+	switch (chan->type) {
 	case IIO_CURRENT:
-		if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) ==
-			IIO_EV_DIR_RISING)
+		if (dir == IIO_EV_DIR_RISING)
 			mask = AD5421_FAULT_OVER_CURRENT;
 		else
 			mask = AD5421_FAULT_UNDER_CURRENT;
@@ -384,15 +408,15 @@ static int ad5421_write_event_config(struct iio_dev *indio_dev,
 }
 
 static int ad5421_read_event_config(struct iio_dev *indio_dev,
-	u64 event_code)
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir)
 {
 	struct ad5421_state *st = iio_priv(indio_dev);
 	unsigned int mask;
 
-	switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) {
+	switch (chan->type) {
 	case IIO_CURRENT:
-		if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) ==
-			IIO_EV_DIR_RISING)
+		if (dir == IIO_EV_DIR_RISING)
 			mask = AD5421_FAULT_OVER_CURRENT;
 		else
 			mask = AD5421_FAULT_UNDER_CURRENT;
@@ -407,12 +431,14 @@ static int ad5421_read_event_config(struct iio_dev *indio_dev,
 	return (bool)(st->fault_mask & mask);
 }
 
-static int ad5421_read_event_value(struct iio_dev *indio_dev, u64 event_code,
-	int *val)
+static int ad5421_read_event_value(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir, enum iio_event_info info, int *val,
+	int *val2)
 {
 	int ret;
 
-	switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) {
+	switch (chan->type) {
 	case IIO_CURRENT:
 		ret = ad5421_read(indio_dev, AD5421_REG_DAC_DATA);
 		if (ret < 0)
@@ -426,15 +452,15 @@ static int ad5421_read_event_value(struct iio_dev *indio_dev, u64 event_code,
 		return -EINVAL;
 	}
 
-	return 0;
+	return IIO_VAL_INT;
 }
 
 static const struct iio_info ad5421_info = {
 	.read_raw =		ad5421_read_raw,
 	.write_raw =		ad5421_write_raw,
-	.read_event_config =	ad5421_read_event_config,
-	.write_event_config =	ad5421_write_event_config,
-	.read_event_value =	ad5421_read_event_value,
+	.read_event_config_new = ad5421_read_event_config,
+	.write_event_config_new = ad5421_write_event_config,
+	.read_event_value_new =	ad5421_read_event_value,
 	.driver_module =	THIS_MODULE,
 };
 
-- 
cgit 


From 5d6a25bad035981b3ceb768ae6164248004e226d Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 15:11:00 +0100
Subject: iio:gp2ap020a00f: Switch to new event config interface

Switch the gp2ap020a00f driver to the new IIO event config interface as the old
one is going to be removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/light/gp2ap020a00f.c | 105 ++++++++++++++++++++++++++-------------
 1 file changed, 71 insertions(+), 34 deletions(-)

diff --git a/drivers/iio/light/gp2ap020a00f.c b/drivers/iio/light/gp2ap020a00f.c
index b1e4615b87e8..2a65bc34face 100644
--- a/drivers/iio/light/gp2ap020a00f.c
+++ b/drivers/iio/light/gp2ap020a00f.c
@@ -996,11 +996,10 @@ done:
 	return IRQ_HANDLED;
 }
 
-static u8 gp2ap020a00f_get_reg_by_event_code(u64 event_code)
+static u8 gp2ap020a00f_get_thresh_reg(const struct iio_chan_spec *chan,
+					     enum iio_event_direction event_dir)
 {
-	int event_dir = IIO_EVENT_CODE_EXTRACT_DIR(event_code);
-
-	switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) {
+	switch (chan->type) {
 	case IIO_PROXIMITY:
 		if (event_dir == IIO_EV_DIR_RISING)
 			return GP2AP020A00F_PH_L_REG;
@@ -1011,13 +1010,19 @@ static u8 gp2ap020a00f_get_reg_by_event_code(u64 event_code)
 			return GP2AP020A00F_TH_L_REG;
 		else
 			return GP2AP020A00F_TL_L_REG;
+	default:
+		break;
 	}
 
 	return -EINVAL;
 }
 
 static int gp2ap020a00f_write_event_val(struct iio_dev *indio_dev,
-					u64 event_code, int val)
+					const struct iio_chan_spec *chan,
+					enum iio_event_type type,
+					enum iio_event_direction dir,
+					enum iio_event_info info,
+					int val, int val2)
 {
 	struct gp2ap020a00f_data *data = iio_priv(indio_dev);
 	bool event_en = false;
@@ -1027,7 +1032,7 @@ static int gp2ap020a00f_write_event_val(struct iio_dev *indio_dev,
 
 	mutex_lock(&data->lock);
 
-	thresh_reg_l = gp2ap020a00f_get_reg_by_event_code(event_code);
+	thresh_reg_l = gp2ap020a00f_get_thresh_reg(chan, dir);
 	thresh_val_id = GP2AP020A00F_THRESH_VAL_ID(thresh_reg_l);
 
 	if (thresh_val_id > GP2AP020A00F_THRESH_PH) {
@@ -1072,15 +1077,19 @@ error_unlock:
 }
 
 static int gp2ap020a00f_read_event_val(struct iio_dev *indio_dev,
-					u64 event_code, int *val)
+				       const struct iio_chan_spec *chan,
+				       enum iio_event_type type,
+				       enum iio_event_direction dir,
+				       enum iio_event_info info,
+				       int *val, int *val2)
 {
 	struct gp2ap020a00f_data *data = iio_priv(indio_dev);
 	u8 thresh_reg_l;
-	int err = 0;
+	int err = IIO_VAL_INT;
 
 	mutex_lock(&data->lock);
 
-	thresh_reg_l = gp2ap020a00f_get_reg_by_event_code(event_code);
+	thresh_reg_l = gp2ap020a00f_get_thresh_reg(chan, dir);
 
 	if (thresh_reg_l > GP2AP020A00F_PH_L_REG) {
 		err = -EINVAL;
@@ -1096,7 +1105,7 @@ error_unlock:
 }
 
 static int gp2ap020a00f_write_prox_event_config(struct iio_dev *indio_dev,
-					u64 event_code, int state)
+						int state)
 {
 	struct gp2ap020a00f_data *data = iio_priv(indio_dev);
 	enum gp2ap020a00f_cmd cmd_high_ev, cmd_low_ev;
@@ -1151,7 +1160,10 @@ static int gp2ap020a00f_write_prox_event_config(struct iio_dev *indio_dev,
 }
 
 static int gp2ap020a00f_write_event_config(struct iio_dev *indio_dev,
-					u64 event_code, int state)
+					   const struct iio_chan_spec *chan,
+					   enum iio_event_type type,
+					   enum iio_event_direction dir,
+					   int state)
 {
 	struct gp2ap020a00f_data *data = iio_priv(indio_dev);
 	enum gp2ap020a00f_cmd cmd;
@@ -1159,14 +1171,12 @@ static int gp2ap020a00f_write_event_config(struct iio_dev *indio_dev,
 
 	mutex_lock(&data->lock);
 
-	switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) {
+	switch (chan->type) {
 	case IIO_PROXIMITY:
-		err = gp2ap020a00f_write_prox_event_config(indio_dev,
-					event_code, state);
+		err = gp2ap020a00f_write_prox_event_config(indio_dev, state);
 		break;
 	case IIO_LIGHT:
-		if (IIO_EVENT_CODE_EXTRACT_DIR(event_code)
-					== IIO_EV_DIR_RISING) {
+		if (dir == IIO_EV_DIR_RISING) {
 			cmd = state ? GP2AP020A00F_CMD_ALS_HIGH_EV_EN :
 				      GP2AP020A00F_CMD_ALS_HIGH_EV_DIS;
 			err = gp2ap020a00f_exec_cmd(data, cmd);
@@ -1186,17 +1196,18 @@ static int gp2ap020a00f_write_event_config(struct iio_dev *indio_dev,
 }
 
 static int gp2ap020a00f_read_event_config(struct iio_dev *indio_dev,
-					u64 event_code)
+					   const struct iio_chan_spec *chan,
+					   enum iio_event_type type,
+					   enum iio_event_direction dir)
 {
 	struct gp2ap020a00f_data *data = iio_priv(indio_dev);
 	int event_en = 0;
 
 	mutex_lock(&data->lock);
 
-	switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) {
+	switch (chan->type) {
 	case IIO_PROXIMITY:
-		if (IIO_EVENT_CODE_EXTRACT_DIR(event_code)
-					== IIO_EV_DIR_RISING)
+		if (dir == IIO_EV_DIR_RISING)
 			event_en = test_bit(GP2AP020A00F_FLAG_PROX_RISING_EV,
 								&data->flags);
 		else
@@ -1204,14 +1215,16 @@ static int gp2ap020a00f_read_event_config(struct iio_dev *indio_dev,
 								&data->flags);
 		break;
 	case IIO_LIGHT:
-		if (IIO_EVENT_CODE_EXTRACT_DIR(event_code)
-					== IIO_EV_DIR_RISING)
+		if (dir == IIO_EV_DIR_RISING)
 			event_en = test_bit(GP2AP020A00F_FLAG_ALS_RISING_EV,
 								&data->flags);
 		else
 			event_en = test_bit(GP2AP020A00F_FLAG_ALS_FALLING_EV,
 								&data->flags);
 		break;
+	default:
+		event_en = -EINVAL;
+		break;
 	}
 
 	mutex_unlock(&data->lock);
@@ -1292,6 +1305,34 @@ error_unlock:
 	return err < 0 ? err : IIO_VAL_INT;
 }
 
+static const struct iio_event_spec gp2ap020a00f_event_spec_light[] = {
+	{
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	},
+};
+
+static const struct iio_event_spec gp2ap020a00f_event_spec_prox[] = {
+	{
+		.type = IIO_EV_TYPE_ROC,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_ROC,
+		.dir = IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	},
+};
+
 static const struct iio_chan_spec gp2ap020a00f_channels[] = {
 	{
 		.type = IIO_LIGHT,
@@ -1307,10 +1348,8 @@ static const struct iio_chan_spec gp2ap020a00f_channels[] = {
 		},
 		.scan_index = GP2AP020A00F_SCAN_MODE_LIGHT_CLEAR,
 		.address = GP2AP020A00F_D0_L_REG,
-		.event_mask = IIO_EV_BIT(IIO_EV_TYPE_THRESH,
-					 IIO_EV_DIR_RISING) |
-			      IIO_EV_BIT(IIO_EV_TYPE_THRESH,
-					 IIO_EV_DIR_FALLING),
+		.event_spec = gp2ap020a00f_event_spec_light,
+		.num_event_specs = ARRAY_SIZE(gp2ap020a00f_event_spec_light),
 	},
 	{
 		.type = IIO_LIGHT,
@@ -1340,20 +1379,18 @@ static const struct iio_chan_spec gp2ap020a00f_channels[] = {
 		},
 		.scan_index = GP2AP020A00F_SCAN_MODE_PROXIMITY,
 		.address = GP2AP020A00F_D2_L_REG,
-		.event_mask = IIO_EV_BIT(IIO_EV_TYPE_ROC,
-					 IIO_EV_DIR_RISING) |
-			      IIO_EV_BIT(IIO_EV_TYPE_ROC,
-					 IIO_EV_DIR_FALLING),
+		.event_spec = gp2ap020a00f_event_spec_prox,
+		.num_event_specs = ARRAY_SIZE(gp2ap020a00f_event_spec_prox),
 	},
 	IIO_CHAN_SOFT_TIMESTAMP(GP2AP020A00F_CHAN_TIMESTAMP),
 };
 
 static const struct iio_info gp2ap020a00f_info = {
 	.read_raw = &gp2ap020a00f_read_raw,
-	.read_event_value = &gp2ap020a00f_read_event_val,
-	.read_event_config = &gp2ap020a00f_read_event_config,
-	.write_event_value = &gp2ap020a00f_write_event_val,
-	.write_event_config = &gp2ap020a00f_write_event_config,
+	.read_event_value_new = &gp2ap020a00f_read_event_val,
+	.read_event_config_new = &gp2ap020a00f_read_event_config,
+	.write_event_value_new = &gp2ap020a00f_write_event_val,
+	.write_event_config_new = &gp2ap020a00f_write_event_config,
 	.driver_module = THIS_MODULE,
 };
 
-- 
cgit 


From 6d59747eb08092d65c186728938a5dcf329b03f0 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 15:11:00 +0100
Subject: iio:tsl2563: Switch to new event config interface

Switch the tsl2563 driver to the new IIO event config interface as the old one
is going to be removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/light/tsl2563.c | 53 +++++++++++++++++++++++++++++----------------
 1 file changed, 34 insertions(+), 19 deletions(-)

diff --git a/drivers/iio/light/tsl2563.c b/drivers/iio/light/tsl2563.c
index ebb962c5c323..5e5d9dea22c5 100644
--- a/drivers/iio/light/tsl2563.c
+++ b/drivers/iio/light/tsl2563.c
@@ -526,6 +526,20 @@ error_ret:
 	return ret;
 }
 
+static const struct iio_event_spec tsl2563_events[] = {
+	{
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+				BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+				BIT(IIO_EV_INFO_ENABLE),
+	},
+};
+
 static const struct iio_chan_spec tsl2563_channels[] = {
 	{
 		.type = IIO_LIGHT,
@@ -538,10 +552,8 @@ static const struct iio_chan_spec tsl2563_channels[] = {
 		.channel2 = IIO_MOD_LIGHT_BOTH,
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
 		BIT(IIO_CHAN_INFO_CALIBSCALE),
-		.event_mask = (IIO_EV_BIT(IIO_EV_TYPE_THRESH,
-					  IIO_EV_DIR_RISING) |
-			       IIO_EV_BIT(IIO_EV_TYPE_THRESH,
-					  IIO_EV_DIR_FALLING)),
+		.event_spec = tsl2563_events,
+		.num_event_specs = ARRAY_SIZE(tsl2563_events),
 	}, {
 		.type = IIO_INTENSITY,
 		.modified = 1,
@@ -552,12 +564,13 @@ static const struct iio_chan_spec tsl2563_channels[] = {
 };
 
 static int tsl2563_read_thresh(struct iio_dev *indio_dev,
-			       u64 event_code,
-			       int *val)
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir, enum iio_event_info info, int *val,
+	int *val2)
 {
 	struct tsl2563_chip *chip = iio_priv(indio_dev);
 
-	switch (IIO_EVENT_CODE_EXTRACT_DIR(event_code)) {
+	switch (dir) {
 	case IIO_EV_DIR_RISING:
 		*val = chip->high_thres;
 		break;
@@ -568,18 +581,19 @@ static int tsl2563_read_thresh(struct iio_dev *indio_dev,
 		return -EINVAL;
 	}
 
-	return 0;
+	return IIO_VAL_INT;
 }
 
 static int tsl2563_write_thresh(struct iio_dev *indio_dev,
-				  u64 event_code,
-				  int val)
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir, enum iio_event_info info, int val,
+	int val2)
 {
 	struct tsl2563_chip *chip = iio_priv(indio_dev);
 	int ret;
 	u8 address;
 
-	if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) == IIO_EV_DIR_RISING)
+	if (dir == IIO_EV_DIR_RISING)
 		address = TSL2563_REG_HIGHLOW;
 	else
 		address = TSL2563_REG_LOWLOW;
@@ -591,7 +605,7 @@ static int tsl2563_write_thresh(struct iio_dev *indio_dev,
 	ret = i2c_smbus_write_byte_data(chip->client,
 					TSL2563_CMD | (address + 1),
 					(val >> 8) & 0xFF);
-	if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) == IIO_EV_DIR_RISING)
+	if (dir == IIO_EV_DIR_RISING)
 		chip->high_thres = val;
 	else
 		chip->low_thres = val;
@@ -620,8 +634,8 @@ static irqreturn_t tsl2563_event_handler(int irq, void *private)
 }
 
 static int tsl2563_write_interrupt_config(struct iio_dev *indio_dev,
-					  u64 event_code,
-					  int state)
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir, int state)
 {
 	struct tsl2563_chip *chip = iio_priv(indio_dev);
 	int ret = 0;
@@ -662,7 +676,8 @@ out:
 }
 
 static int tsl2563_read_interrupt_config(struct iio_dev *indio_dev,
-					 u64 event_code)
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir)
 {
 	struct tsl2563_chip *chip = iio_priv(indio_dev);
 	int ret;
@@ -687,10 +702,10 @@ static const struct iio_info tsl2563_info = {
 	.driver_module = THIS_MODULE,
 	.read_raw = &tsl2563_read_raw,
 	.write_raw = &tsl2563_write_raw,
-	.read_event_value = &tsl2563_read_thresh,
-	.write_event_value = &tsl2563_write_thresh,
-	.read_event_config = &tsl2563_read_interrupt_config,
-	.write_event_config = &tsl2563_write_interrupt_config,
+	.read_event_value_new = &tsl2563_read_thresh,
+	.write_event_value_new = &tsl2563_write_thresh,
+	.read_event_config_new = &tsl2563_read_interrupt_config,
+	.write_event_config_new = &tsl2563_write_interrupt_config,
 };
 
 static int tsl2563_probe(struct i2c_client *client,
-- 
cgit 


From 7e97e7bd1f394f2032621d396e6603eada610719 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 15:11:00 +0100
Subject: iio:apds9300: Use new event config interface

Switch the apds9300 driver to the new IIO event config interface as the old one
is going to be removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Oleksandr Kravchenko <o.v.kravchenko@globallogic.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/light/apds9300.c | 53 ++++++++++++++++++++++++++++++--------------
 1 file changed, 36 insertions(+), 17 deletions(-)

diff --git a/drivers/iio/light/apds9300.c b/drivers/iio/light/apds9300.c
index 66a58bda6dc8..51097bbd59c9 100644
--- a/drivers/iio/light/apds9300.c
+++ b/drivers/iio/light/apds9300.c
@@ -273,12 +273,14 @@ static int apds9300_read_raw(struct iio_dev *indio_dev,
 	return ret;
 }
 
-static int apds9300_read_thresh(struct iio_dev *indio_dev, u64 event_code,
-		int *val)
+static int apds9300_read_thresh(struct iio_dev *indio_dev,
+		const struct iio_chan_spec *chan, enum iio_event_type type,
+		enum iio_event_direction dir, enum iio_event_info info,
+		int *val, int *val2)
 {
 	struct apds9300_data *data = iio_priv(indio_dev);
 
-	switch (IIO_EVENT_CODE_EXTRACT_DIR(event_code)) {
+	switch (dir) {
 	case IIO_EV_DIR_RISING:
 		*val = data->thresh_hi;
 		break;
@@ -289,17 +291,19 @@ static int apds9300_read_thresh(struct iio_dev *indio_dev, u64 event_code,
 		return -EINVAL;
 	}
 
-	return 0;
+	return IIO_VAL_INT;
 }
 
-static int apds9300_write_thresh(struct iio_dev *indio_dev, u64 event_code,
-		int val)
+static int apds9300_write_thresh(struct iio_dev *indio_dev,
+		const struct iio_chan_spec *chan, enum iio_event_type type,
+		enum iio_event_direction dir, enum iio_event_info info, int val,
+		int val2)
 {
 	struct apds9300_data *data = iio_priv(indio_dev);
 	int ret;
 
 	mutex_lock(&data->mutex);
-	if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) == IIO_EV_DIR_RISING)
+	if (dir == IIO_EV_DIR_RISING)
 		ret = apds9300_set_thresh_hi(data, val);
 	else
 		ret = apds9300_set_thresh_low(data, val);
@@ -309,7 +313,9 @@ static int apds9300_write_thresh(struct iio_dev *indio_dev, u64 event_code,
 }
 
 static int apds9300_read_interrupt_config(struct iio_dev *indio_dev,
-		u64 event_code)
+		const struct iio_chan_spec *chan,
+		enum iio_event_type type,
+		enum iio_event_direction dir)
 {
 	struct apds9300_data *data = iio_priv(indio_dev);
 
@@ -317,7 +323,8 @@ static int apds9300_read_interrupt_config(struct iio_dev *indio_dev,
 }
 
 static int apds9300_write_interrupt_config(struct iio_dev *indio_dev,
-		u64 event_code, int state)
+		const struct iio_chan_spec *chan, enum iio_event_type type,
+		enum iio_event_direction dir, int state)
 {
 	struct apds9300_data *data = iio_priv(indio_dev);
 	int ret;
@@ -337,10 +344,24 @@ static const struct iio_info apds9300_info_no_irq = {
 static const struct iio_info apds9300_info = {
 	.driver_module		= THIS_MODULE,
 	.read_raw		= apds9300_read_raw,
-	.read_event_value	= apds9300_read_thresh,
-	.write_event_value	= apds9300_write_thresh,
-	.read_event_config	= apds9300_read_interrupt_config,
-	.write_event_config	= apds9300_write_interrupt_config,
+	.read_event_value_new	= apds9300_read_thresh,
+	.write_event_value_new	= apds9300_write_thresh,
+	.read_event_config_new	= apds9300_read_interrupt_config,
+	.write_event_config_new	= apds9300_write_interrupt_config,
+};
+
+static const struct iio_event_spec apds9300_event_spec[] = {
+	{
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	},
 };
 
 static const struct iio_chan_spec apds9300_channels[] = {
@@ -355,10 +376,8 @@ static const struct iio_chan_spec apds9300_channels[] = {
 		.channel2 = IIO_MOD_LIGHT_BOTH,
 		.indexed = true,
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-		.event_mask = (IIO_EV_BIT(IIO_EV_TYPE_THRESH,
-					  IIO_EV_DIR_RISING) |
-			       IIO_EV_BIT(IIO_EV_TYPE_THRESH,
-					  IIO_EV_DIR_FALLING)),
+		.event_spec = apds9300_event_spec,
+		.num_event_specs = ARRAY_SIZE(apds9300_event_spec),
 	}, {
 		.type = IIO_INTENSITY,
 		.channel = 1,
-- 
cgit 


From 8613e92cc3b42f88cf4872657d5ad058b8b9c0af Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 15:11:00 +0100
Subject: staging:iio:lis3l02dq: Switch to new event config interface

Switch the lis3l02dq driver to the new IIO event config interface as the old one
is going to be removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/accel/lis3l02dq_core.c | 64 ++++++++++++++++++++----------
 1 file changed, 43 insertions(+), 21 deletions(-)

diff --git a/drivers/staging/iio/accel/lis3l02dq_core.c b/drivers/staging/iio/accel/lis3l02dq_core.c
index bb852dc9c987..78187f136a7d 100644
--- a/drivers/staging/iio/accel/lis3l02dq_core.c
+++ b/drivers/staging/iio/accel/lis3l02dq_core.c
@@ -190,15 +190,26 @@ static u8 lis3l02dq_axis_map[3][3] = {
 };
 
 static int lis3l02dq_read_thresh(struct iio_dev *indio_dev,
-				 u64 e,
-				 int *val)
+				 const struct iio_chan_spec *chan,
+				 enum iio_event_type type,
+				 enum iio_event_direction dir,
+				 enum iio_event_info info,
+				 int *val, int *val2)
 {
-	return lis3l02dq_read_reg_s16(indio_dev, LIS3L02DQ_REG_THS_L_ADDR, val);
+	int ret;
+
+	ret = lis3l02dq_read_reg_s16(indio_dev, LIS3L02DQ_REG_THS_L_ADDR, val);
+	if (ret)
+		return ret;
+	return IIO_VAL_INT;
 }
 
 static int lis3l02dq_write_thresh(struct iio_dev *indio_dev,
-				  u64 event_code,
-				  int val)
+				  const struct iio_chan_spec *chan,
+				  enum iio_event_type type,
+				  enum iio_event_direction dir,
+				  enum iio_event_info info,
+				  int val, int val2)
 {
 	u16 value = val;
 	return lis3l02dq_spi_write_reg_s16(indio_dev,
@@ -503,9 +514,19 @@ static irqreturn_t lis3l02dq_event_handler(int irq, void *private)
 	return IRQ_HANDLED;
 }
 
-#define LIS3L02DQ_EVENT_MASK					\
-	(IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING) |	\
-	 IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING))
+static const struct iio_event_spec lis3l02dq_event[] = {
+	{
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	}
+};
 
 #define LIS3L02DQ_CHAN(index, mod)				\
 	{							\
@@ -523,7 +544,8 @@ static irqreturn_t lis3l02dq_event_handler(int irq, void *private)
 			.realbits = 12,				\
 			.storagebits = 16,			\
 		},						\
-		.event_mask = LIS3L02DQ_EVENT_MASK,		\
+		.event_spec = lis3l02dq_event,			\
+		.num_event_specs = ARRAY_SIZE(lis3l02dq_event),	\
 	 }
 
 static const struct iio_chan_spec lis3l02dq_channels[] = {
@@ -535,14 +557,14 @@ static const struct iio_chan_spec lis3l02dq_channels[] = {
 
 
 static int lis3l02dq_read_event_config(struct iio_dev *indio_dev,
-					   u64 event_code)
+				       const struct iio_chan_spec *chan,
+				       enum iio_event_type type,
+				       enum iio_event_direction dir)
 {
 
 	u8 val;
 	int ret;
-	u8 mask = (1 << (IIO_EVENT_CODE_EXTRACT_MODIFIER(event_code)*2 +
-			 (IIO_EVENT_CODE_EXTRACT_DIR(event_code) ==
-			  IIO_EV_DIR_RISING)));
+	u8 mask = (1 << (chan->channel2*2 + (dir == IIO_EV_DIR_RISING)));
 	ret = lis3l02dq_spi_read_reg_8(indio_dev,
 				       LIS3L02DQ_REG_WAKE_UP_CFG_ADDR,
 				       &val);
@@ -587,16 +609,16 @@ error_ret:
 }
 
 static int lis3l02dq_write_event_config(struct iio_dev *indio_dev,
-					u64 event_code,
+					const struct iio_chan_spec *chan,
+					enum iio_event_type type,
+					enum iio_event_direction dir,
 					int state)
 {
 	int ret = 0;
 	u8 val, control;
 	u8 currentlyset;
 	bool changed = false;
-	u8 mask = (1 << (IIO_EVENT_CODE_EXTRACT_MODIFIER(event_code)*2 +
-			 (IIO_EVENT_CODE_EXTRACT_DIR(event_code) ==
-			  IIO_EV_DIR_RISING)));
+	u8 mask = (1 << (chan->channel2*2 + (dir == IIO_EV_DIR_RISING)));
 
 	mutex_lock(&indio_dev->mlock);
 	/* read current control */
@@ -654,10 +676,10 @@ static const struct attribute_group lis3l02dq_attribute_group = {
 static const struct iio_info lis3l02dq_info = {
 	.read_raw = &lis3l02dq_read_raw,
 	.write_raw = &lis3l02dq_write_raw,
-	.read_event_value = &lis3l02dq_read_thresh,
-	.write_event_value = &lis3l02dq_write_thresh,
-	.write_event_config = &lis3l02dq_write_event_config,
-	.read_event_config = &lis3l02dq_read_event_config,
+	.read_event_value_new = &lis3l02dq_read_thresh,
+	.write_event_value_new = &lis3l02dq_write_thresh,
+	.write_event_config_new = &lis3l02dq_write_event_config,
+	.read_event_config_new = &lis3l02dq_read_event_config,
 	.driver_module = THIS_MODULE,
 	.attrs = &lis3l02dq_attribute_group,
 };
-- 
cgit 


From 693101ddba0c53a809c4fd4d029175fd28e665af Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 15:11:00 +0100
Subject: staging:iio:lis2l02dq: Share threshold value between axis

The threshold event can be enabled/disabled separately, but the threshold value
is shared between all three axis.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/accel/lis3l02dq_core.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/iio/accel/lis3l02dq_core.c b/drivers/staging/iio/accel/lis3l02dq_core.c
index 78187f136a7d..2789be381f1b 100644
--- a/drivers/staging/iio/accel/lis3l02dq_core.c
+++ b/drivers/staging/iio/accel/lis3l02dq_core.c
@@ -518,13 +518,13 @@ static const struct iio_event_spec lis3l02dq_event[] = {
 	{
 		.type = IIO_EV_TYPE_THRESH,
 		.dir = IIO_EV_DIR_RISING,
-		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
-			BIT(IIO_EV_INFO_ENABLE),
+		.mask_separate = BIT(IIO_EV_INFO_ENABLE),
+		.mask_shared_by_type = BIT(IIO_EV_INFO_VALUE),
 	}, {
 		.type = IIO_EV_TYPE_THRESH,
 		.dir = IIO_EV_DIR_FALLING,
-		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
-			BIT(IIO_EV_INFO_ENABLE),
+		.mask_separate = BIT(IIO_EV_INFO_ENABLE),
+		.mask_shared_by_type = BIT(IIO_EV_INFO_VALUE),
 	}
 };
 
-- 
cgit 


From 129c3f611a86d077314ab6a0a55ea05a0939db31 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 15:11:00 +0100
Subject: staging:iio:sca3000: Switch to new config interface

Switch the sca3000 driver to the new IIO event config interface as the old one
is going to be removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/accel/sca3000_core.c | 58 ++++++++++++++++++++------------
 1 file changed, 36 insertions(+), 22 deletions(-)

diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c
index 6a9ca20ea22d..c49e6ef9d05f 100644
--- a/drivers/staging/iio/accel/sca3000_core.c
+++ b/drivers/staging/iio/accel/sca3000_core.c
@@ -419,8 +419,11 @@ static IIO_DEVICE_ATTR(measurement_mode, S_IRUGO | S_IWUSR,
 
 static IIO_DEVICE_ATTR(revision, S_IRUGO, sca3000_show_rev, NULL, 0);
 
-#define SCA3000_EVENT_MASK					\
-	(IIO_EV_BIT(IIO_EV_TYPE_MAG, IIO_EV_DIR_RISING))
+static const struct iio_event_spec sca3000_event = {
+	.type = IIO_EV_TYPE_MAG,
+	.dir = IIO_EV_DIR_RISING,
+	.mask_separate = BIT(IIO_EV_INFO_VALUE) | BIT(IIO_EV_INFO_ENABLE),
+};
 
 #define SCA3000_CHAN(index, mod)				\
 	{							\
@@ -437,7 +440,8 @@ static IIO_DEVICE_ATTR(revision, S_IRUGO, sca3000_show_rev, NULL, 0);
 			.storagebits = 16,			\
 			.shift = 5,				\
 		},						\
-		.event_mask = SCA3000_EVENT_MASK,		\
+		.event_spec = &sca3000_event,			\
+		.num_event_specs = 1,				\
 	 }
 
 static const struct iio_chan_spec sca3000_channels[] = {
@@ -703,12 +707,15 @@ static IIO_CONST_ATTR_TEMP_OFFSET("-214.6");
  * sca3000_read_thresh() - query of a threshold
  **/
 static int sca3000_read_thresh(struct iio_dev *indio_dev,
-			       u64 e,
-			       int *val)
+			       const struct iio_chan_spec *chan,
+			       enum iio_event_type type,
+			       enum iio_event_direction dir,
+			       enum iio_event_info info,
+			       int *val, int *val2)
 {
 	int ret, i;
 	struct sca3000_state *st = iio_priv(indio_dev);
-	int num = IIO_EVENT_CODE_EXTRACT_MODIFIER(e);
+	int num = chan->channel2;
 	mutex_lock(&st->lock);
 	ret = sca3000_read_ctrl_reg(st, sca3000_addresses[num][1]);
 	mutex_unlock(&st->lock);
@@ -724,18 +731,21 @@ static int sca3000_read_thresh(struct iio_dev *indio_dev,
 				 ARRAY_SIZE(st->info->mot_det_mult_xz))
 			*val += st->info->mot_det_mult_xz[i];
 
-	return 0;
+	return IIO_VAL_INT;
 }
 
 /**
  * sca3000_write_thresh() control of threshold
  **/
 static int sca3000_write_thresh(struct iio_dev *indio_dev,
-				u64 e,
-				int val)
+				const struct iio_chan_spec *chan,
+				enum iio_event_type type,
+				enum iio_event_direction dir,
+				enum iio_event_info info,
+				int val, int val2)
 {
 	struct sca3000_state *st = iio_priv(indio_dev);
-	int num = IIO_EVENT_CODE_EXTRACT_MODIFIER(e);
+	int num = chan->channel2;
 	int ret;
 	int i;
 	u8 nonlinear = 0;
@@ -866,12 +876,14 @@ done:
  * sca3000_read_event_config() what events are enabled
  **/
 static int sca3000_read_event_config(struct iio_dev *indio_dev,
-				     u64 e)
+				     const struct iio_chan_spec *chan,
+				     enum iio_event_type type,
+				     enum iio_event_direction dir)
 {
 	struct sca3000_state *st = iio_priv(indio_dev);
 	int ret;
 	u8 protect_mask = 0x03;
-	int num = IIO_EVENT_CODE_EXTRACT_MODIFIER(e);
+	int num = chan->channel2;
 
 	/* read current value of mode register */
 	mutex_lock(&st->lock);
@@ -969,13 +981,15 @@ error_ret:
  * this mode is disabled.  Currently normal mode is assumed.
  **/
 static int sca3000_write_event_config(struct iio_dev *indio_dev,
-				      u64 e,
+				      const struct iio_chan_spec *chan,
+				      enum iio_event_type type,
+				      enum iio_event_direction dir,
 				      int state)
 {
 	struct sca3000_state *st = iio_priv(indio_dev);
 	int ret, ctrlval;
 	u8 protect_mask = 0x03;
-	int num = IIO_EVENT_CODE_EXTRACT_MODIFIER(e);
+	int num = chan->channel2;
 
 	mutex_lock(&st->lock);
 	/* First read the motion detector config to find out if
@@ -1112,20 +1126,20 @@ static const struct iio_info sca3000_info = {
 	.attrs = &sca3000_attribute_group,
 	.read_raw = &sca3000_read_raw,
 	.event_attrs = &sca3000_event_attribute_group,
-	.read_event_value = &sca3000_read_thresh,
-	.write_event_value = &sca3000_write_thresh,
-	.read_event_config = &sca3000_read_event_config,
-	.write_event_config = &sca3000_write_event_config,
+	.read_event_value_new = &sca3000_read_thresh,
+	.write_event_value_new = &sca3000_write_thresh,
+	.read_event_config_new = &sca3000_read_event_config,
+	.write_event_config_new = &sca3000_write_event_config,
 	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_info sca3000_info_with_temp = {
 	.attrs = &sca3000_attribute_group_with_temp,
 	.read_raw = &sca3000_read_raw,
-	.read_event_value = &sca3000_read_thresh,
-	.write_event_value = &sca3000_write_thresh,
-	.read_event_config = &sca3000_read_event_config,
-	.write_event_config = &sca3000_write_event_config,
+	.read_event_value_new = &sca3000_read_thresh,
+	.write_event_value_new = &sca3000_write_thresh,
+	.read_event_config_new = &sca3000_read_event_config,
+	.write_event_config_new = &sca3000_write_event_config,
 	.driver_module = THIS_MODULE,
 };
 
-- 
cgit 


From b80a674b8d52e75cb2be3ac9e65cf51d218798df Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 15:11:00 +0100
Subject: staging:iio:ad7291: Switch to new event config interface

Switch the ad7291 driver to the new IIO event config interface as the old one
is going to be removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/ad7291.c | 96 ++++++++++++++++++++++++----------------
 1 file changed, 59 insertions(+), 37 deletions(-)

diff --git a/drivers/staging/iio/adc/ad7291.c b/drivers/staging/iio/adc/ad7291.c
index 1dae1efe41c7..be4d93a61ae7 100644
--- a/drivers/staging/iio/adc/ad7291.c
+++ b/drivers/staging/iio/adc/ad7291.c
@@ -248,13 +248,14 @@ static struct attribute *ad7291_event_attributes[] = {
 	NULL,
 };
 
-static unsigned int ad7291_threshold_reg(u64 event_code)
+static unsigned int ad7291_threshold_reg(const struct iio_chan_spec *chan,
+	enum iio_event_direction dir)
 {
 	unsigned int offset;
 
-	switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) {
+	switch (chan->type) {
 	case IIO_VOLTAGE:
-		offset = IIO_EVENT_CODE_EXTRACT_CHAN(event_code);
+		offset = chan->channel;
 		break;
 	case IIO_TEMP:
 		offset = 8;
@@ -263,43 +264,49 @@ static unsigned int ad7291_threshold_reg(u64 event_code)
 	    return 0;
 	}
 
-	if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) == IIO_EV_DIR_FALLING)
+	if (dir == IIO_EV_DIR_FALLING)
 		return AD7291_DATA_LOW(offset);
 	else
 		return AD7291_DATA_HIGH(offset);
 }
 
 static int ad7291_read_event_value(struct iio_dev *indio_dev,
-				   u64 event_code,
-				   int *val)
+				   const struct iio_chan_spec *chan,
+				   enum iio_event_type type,
+				   enum iio_event_direction dir,
+				   enum iio_event_info info,
+				   int *val, int *val2)
 {
 	struct ad7291_chip_info *chip = iio_priv(indio_dev);
 	int ret;
 	u16 uval;
 
-	ret = ad7291_i2c_read(chip, ad7291_threshold_reg(event_code), &uval);
+	ret = ad7291_i2c_read(chip, ad7291_threshold_reg(chan, dir), &uval);
 	if (ret < 0)
 		return ret;
 
-	switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) {
+	switch (chan->type) {
 	case IIO_VOLTAGE:
 		*val = uval & AD7291_VALUE_MASK;
-		return 0;
+		return IIO_VAL_INT;
 	case IIO_TEMP:
 		*val = sign_extend32(uval, 11);
-		return 0;
+		return IIO_VAL_INT;
 	default:
 		return -EINVAL;
 	};
 }
 
 static int ad7291_write_event_value(struct iio_dev *indio_dev,
-				    u64 event_code,
-				    int val)
+				    const struct iio_chan_spec *chan,
+				    enum iio_event_type type,
+				    enum iio_event_direction dir,
+				    enum iio_event_info info,
+				    int val, int val2)
 {
 	struct ad7291_chip_info *chip = iio_priv(indio_dev);
 
-	switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) {
+	switch (chan->type) {
 	case IIO_VOLTAGE:
 		if (val > AD7291_VALUE_MASK || val < 0)
 			return -EINVAL;
@@ -312,20 +319,21 @@ static int ad7291_write_event_value(struct iio_dev *indio_dev,
 		return -EINVAL;
 	}
 
-	return ad7291_i2c_write(chip, ad7291_threshold_reg(event_code), val);
+	return ad7291_i2c_write(chip, ad7291_threshold_reg(chan, dir), val);
 }
 
 static int ad7291_read_event_config(struct iio_dev *indio_dev,
-				    u64 event_code)
+				    const struct iio_chan_spec *chan,
+				    enum iio_event_type type,
+				    enum iio_event_direction dir)
 {
 	struct ad7291_chip_info *chip = iio_priv(indio_dev);
 	/* To be enabled the channel must simply be on. If any are enabled
 	   we are in continuous sampling mode */
 
-	switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) {
+	switch (chan->type) {
 	case IIO_VOLTAGE:
-		if (chip->c_mask &
-		    (1 << (15 - IIO_EVENT_CODE_EXTRACT_CHAN(event_code))))
+		if (chip->c_mask & (1 << (15 - chan->channel)))
 			return 1;
 		else
 			return 0;
@@ -339,11 +347,14 @@ static int ad7291_read_event_config(struct iio_dev *indio_dev,
 }
 
 static int ad7291_write_event_config(struct iio_dev *indio_dev,
-				     u64 event_code,
+				     const struct iio_chan_spec *chan,
+				     enum iio_event_type type,
+				     enum iio_event_direction dir,
 				     int state)
 {
 	int ret = 0;
 	struct ad7291_chip_info *chip = iio_priv(indio_dev);
+	unsigned int mask;
 	u16 regval;
 
 	mutex_lock(&chip->state_lock);
@@ -354,16 +365,14 @@ static int ad7291_write_event_config(struct iio_dev *indio_dev,
 	 * Possible to disable temp as well but that makes single read tricky.
 	 */
 
-	switch (IIO_EVENT_CODE_EXTRACT_TYPE(event_code)) {
+	mask = BIT(15 - chan->channel);
+
+	switch (chan->type) {
 	case IIO_VOLTAGE:
-		if ((!state) && (chip->c_mask & (1 << (15 -
-				IIO_EVENT_CODE_EXTRACT_CHAN(event_code)))))
-			chip->c_mask &= ~(1 << (15 - IIO_EVENT_CODE_EXTRACT_CHAN
-							(event_code)));
-		else if (state && (!(chip->c_mask & (1 << (15 -
-				IIO_EVENT_CODE_EXTRACT_CHAN(event_code))))))
-			chip->c_mask |= (1 << (15 - IIO_EVENT_CODE_EXTRACT_CHAN
-							(event_code)));
+		if ((!state) && (chip->c_mask & mask))
+			chip->c_mask &= ~mask;
+		else if (state && (!(chip->c_mask & mask)))
+			chip->c_mask |= mask;
 		else
 			break;
 
@@ -473,6 +482,20 @@ static int ad7291_read_raw(struct iio_dev *indio_dev,
 	}
 }
 
+static const struct iio_event_spec ad7291_events[] = {
+	{
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	},
+};
+
 #define AD7291_VOLTAGE_CHAN(_chan)					\
 {									\
 	.type = IIO_VOLTAGE,						\
@@ -480,8 +503,8 @@ static int ad7291_read_raw(struct iio_dev *indio_dev,
 	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE),		\
 	.indexed = 1,							\
 	.channel = _chan,						\
-	.event_mask = IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING)|\
-	IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING)		\
+	.event_spec = ad7291_events,					\
+	.num_event_specs = ARRAY_SIZE(ad7291_events),			\
 }
 
 static const struct iio_chan_spec ad7291_channels[] = {
@@ -500,9 +523,8 @@ static const struct iio_chan_spec ad7291_channels[] = {
 				BIT(IIO_CHAN_INFO_SCALE),
 		.indexed = 1,
 		.channel = 0,
-		.event_mask =
-		IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING)|
-		IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING)
+		.event_spec = ad7291_events,
+		.num_event_specs = ARRAY_SIZE(ad7291_events),
 	}
 };
 
@@ -512,10 +534,10 @@ static struct attribute_group ad7291_event_attribute_group = {
 
 static const struct iio_info ad7291_info = {
 	.read_raw = &ad7291_read_raw,
-	.read_event_config = &ad7291_read_event_config,
-	.write_event_config = &ad7291_write_event_config,
-	.read_event_value = &ad7291_read_event_value,
-	.write_event_value = &ad7291_write_event_value,
+	.read_event_config_new = &ad7291_read_event_config,
+	.write_event_config_new = &ad7291_write_event_config,
+	.read_event_value_new = &ad7291_read_event_value,
+	.write_event_value_new = &ad7291_write_event_value,
 	.event_attrs = &ad7291_event_attribute_group,
 	.driver_module = THIS_MODULE,
 };
-- 
cgit 


From 5b9e048a808614714904baecf45bfba666bdf2b1 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 15:11:00 +0100
Subject: staging:iio:ad799x: Switch to new event config interface

Switch the ad799x driver to the new IIO event config interface as the old one
is going to be removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/ad799x_core.c | 145 ++++++++++++++++++++--------------
 1 file changed, 85 insertions(+), 60 deletions(-)

diff --git a/drivers/staging/iio/adc/ad799x_core.c b/drivers/staging/iio/adc/ad799x_core.c
index eb6a690e6e90..57bc540b14ae 100644
--- a/drivers/staging/iio/adc/ad799x_core.c
+++ b/drivers/staging/iio/adc/ad799x_core.c
@@ -252,7 +252,9 @@ error_ret_mutex:
 }
 
 static int ad799x_read_event_config(struct iio_dev *indio_dev,
-				    u64 event_code)
+				    const struct iio_chan_spec *chan,
+				    enum iio_event_type type,
+				    enum iio_event_direction dir)
 {
 	return 1;
 }
@@ -265,14 +267,16 @@ static const u8 ad799x_threshold_addresses[][2] = {
 };
 
 static int ad799x_write_event_value(struct iio_dev *indio_dev,
-				    u64 event_code,
-				    int val)
+				    const struct iio_chan_spec *chan,
+				    enum iio_event_type type,
+				    enum iio_event_direction dir,
+				    enum iio_event_info info,
+				    int val, int val2)
 {
 	int ret;
 	struct ad799x_state *st = iio_priv(indio_dev);
-	int direction = !!(IIO_EVENT_CODE_EXTRACT_DIR(event_code) ==
-			   IIO_EV_DIR_FALLING);
-	int number = IIO_EVENT_CODE_EXTRACT_CHAN(event_code);
+	int direction = dir == IIO_EV_DIR_FALLING;
+	int number = chan->channel;
 
 	mutex_lock(&indio_dev->mlock);
 	ret = ad799x_i2c_write16(st,
@@ -284,14 +288,16 @@ static int ad799x_write_event_value(struct iio_dev *indio_dev,
 }
 
 static int ad799x_read_event_value(struct iio_dev *indio_dev,
-				    u64 event_code,
-				    int *val)
+				    const struct iio_chan_spec *chan,
+				    enum iio_event_type type,
+				    enum iio_event_direction dir,
+				    enum iio_event_info info,
+				    int *val, int *val2)
 {
 	int ret;
 	struct ad799x_state *st = iio_priv(indio_dev);
-	int direction = !!(IIO_EVENT_CODE_EXTRACT_DIR(event_code) ==
-			   IIO_EV_DIR_FALLING);
-	int number = IIO_EVENT_CODE_EXTRACT_CHAN(event_code);
+	int direction = dir == IIO_EV_DIR_FALLING;
+	int number = chan->channel;
 	u16 valin;
 
 	mutex_lock(&indio_dev->mlock);
@@ -303,7 +309,7 @@ static int ad799x_read_event_value(struct iio_dev *indio_dev,
 		return ret;
 	*val = valin;
 
-	return 0;
+	return IIO_VAL_INT;
 }
 
 static ssize_t ad799x_read_channel_config(struct device *dev,
@@ -446,26 +452,37 @@ static const struct iio_info ad7991_info = {
 static const struct iio_info ad7992_info = {
 	.read_raw = &ad799x_read_raw,
 	.event_attrs = &ad7992_event_attrs_group,
-	.read_event_config = &ad799x_read_event_config,
-	.read_event_value = &ad799x_read_event_value,
-	.write_event_value = &ad799x_write_event_value,
+	.read_event_config_new = &ad799x_read_event_config,
+	.read_event_value_new = &ad799x_read_event_value,
+	.write_event_value_new = &ad799x_write_event_value,
 	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_info ad7993_4_7_8_info = {
 	.read_raw = &ad799x_read_raw,
 	.event_attrs = &ad7993_4_7_8_event_attrs_group,
-	.read_event_config = &ad799x_read_event_config,
-	.read_event_value = &ad799x_read_event_value,
-	.write_event_value = &ad799x_write_event_value,
+	.read_event_config_new = &ad799x_read_event_config,
+	.read_event_value_new = &ad799x_read_event_value,
+	.write_event_value_new = &ad799x_write_event_value,
 	.driver_module = THIS_MODULE,
 	.update_scan_mode = ad7997_8_update_scan_mode,
 };
 
-#define AD799X_EV_MASK (IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING) | \
-			IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING))
+static const struct iio_event_spec ad799x_events[] = {
+	{
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE),
+			BIT(IIO_EV_INFO_ENABLE),
+	},
+};
 
-#define AD799X_CHANNEL(_index, _realbits, _evmask) { \
+#define _AD799X_CHANNEL(_index, _realbits, _ev_spec, _num_ev_spec) { \
 	.type = IIO_VOLTAGE, \
 	.indexed = 1, \
 	.channel = (_index), \
@@ -473,16 +490,24 @@ static const struct iio_info ad7993_4_7_8_info = {
 	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
 	.scan_index = (_index), \
 	.scan_type = IIO_ST('u', _realbits, 16, 12 - (_realbits)), \
-	.event_mask = (_evmask), \
+	.event_spec = _ev_spec, \
+	.num_event_specs = _num_ev_spec, \
 }
 
+#define AD799X_CHANNEL(_index, _realbits) \
+	_AD799X_CHANNEL(_index, _realbits, NULL, 0)
+
+#define AD799X_CHANNEL_WITH_EVENTS(_index, _realbits) \
+	_AD799X_CHANNEL(_index, _realbits, ad799x_events, \
+		ARRAY_SIZE(ad799x_events))
+
 static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
 	[ad7991] = {
 		.channel = {
-			AD799X_CHANNEL(0, 12, 0),
-			AD799X_CHANNEL(1, 12, 0),
-			AD799X_CHANNEL(2, 12, 0),
-			AD799X_CHANNEL(3, 12, 0),
+			AD799X_CHANNEL(0, 12),
+			AD799X_CHANNEL(1, 12),
+			AD799X_CHANNEL(2, 12),
+			AD799X_CHANNEL(3, 12),
 			IIO_CHAN_SOFT_TIMESTAMP(4),
 		},
 		.num_channels = 5,
@@ -490,10 +515,10 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
 	},
 	[ad7995] = {
 		.channel = {
-			AD799X_CHANNEL(0, 10, 0),
-			AD799X_CHANNEL(1, 10, 0),
-			AD799X_CHANNEL(2, 10, 0),
-			AD799X_CHANNEL(3, 10, 0),
+			AD799X_CHANNEL(0, 10),
+			AD799X_CHANNEL(1, 10),
+			AD799X_CHANNEL(2, 10),
+			AD799X_CHANNEL(3, 10),
 			IIO_CHAN_SOFT_TIMESTAMP(4),
 		},
 		.num_channels = 5,
@@ -501,10 +526,10 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
 	},
 	[ad7999] = {
 		.channel = {
-			AD799X_CHANNEL(0, 8, 0),
-			AD799X_CHANNEL(1, 8, 0),
-			AD799X_CHANNEL(2, 8, 0),
-			AD799X_CHANNEL(3, 8, 0),
+			AD799X_CHANNEL(0, 8),
+			AD799X_CHANNEL(1, 8),
+			AD799X_CHANNEL(2, 8),
+			AD799X_CHANNEL(3, 8),
 			IIO_CHAN_SOFT_TIMESTAMP(4),
 		},
 		.num_channels = 5,
@@ -512,8 +537,8 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
 	},
 	[ad7992] = {
 		.channel = {
-			AD799X_CHANNEL(0, 12, AD799X_EV_MASK),
-			AD799X_CHANNEL(1, 12, AD799X_EV_MASK),
+			AD799X_CHANNEL_WITH_EVENTS(0, 12),
+			AD799X_CHANNEL_WITH_EVENTS(1, 12),
 			IIO_CHAN_SOFT_TIMESTAMP(3),
 		},
 		.num_channels = 3,
@@ -522,10 +547,10 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
 	},
 	[ad7993] = {
 		.channel = {
-			AD799X_CHANNEL(0, 10, AD799X_EV_MASK),
-			AD799X_CHANNEL(1, 10, AD799X_EV_MASK),
-			AD799X_CHANNEL(2, 10, AD799X_EV_MASK),
-			AD799X_CHANNEL(3, 10, AD799X_EV_MASK),
+			AD799X_CHANNEL_WITH_EVENTS(0, 10),
+			AD799X_CHANNEL_WITH_EVENTS(1, 10),
+			AD799X_CHANNEL_WITH_EVENTS(2, 10),
+			AD799X_CHANNEL_WITH_EVENTS(3, 10),
 			IIO_CHAN_SOFT_TIMESTAMP(4),
 		},
 		.num_channels = 5,
@@ -534,10 +559,10 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
 	},
 	[ad7994] = {
 		.channel = {
-			AD799X_CHANNEL(0, 12, AD799X_EV_MASK),
-			AD799X_CHANNEL(1, 12, AD799X_EV_MASK),
-			AD799X_CHANNEL(2, 12, AD799X_EV_MASK),
-			AD799X_CHANNEL(3, 12, AD799X_EV_MASK),
+			AD799X_CHANNEL_WITH_EVENTS(0, 12),
+			AD799X_CHANNEL_WITH_EVENTS(1, 12),
+			AD799X_CHANNEL_WITH_EVENTS(2, 12),
+			AD799X_CHANNEL_WITH_EVENTS(3, 12),
 			IIO_CHAN_SOFT_TIMESTAMP(4),
 		},
 		.num_channels = 5,
@@ -546,14 +571,14 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
 	},
 	[ad7997] = {
 		.channel = {
-			AD799X_CHANNEL(0, 10, AD799X_EV_MASK),
-			AD799X_CHANNEL(1, 10, AD799X_EV_MASK),
-			AD799X_CHANNEL(2, 10, AD799X_EV_MASK),
-			AD799X_CHANNEL(3, 10, AD799X_EV_MASK),
-			AD799X_CHANNEL(4, 10, 0),
-			AD799X_CHANNEL(5, 10, 0),
-			AD799X_CHANNEL(6, 10, 0),
-			AD799X_CHANNEL(7, 10, 0),
+			AD799X_CHANNEL_WITH_EVENTS(0, 10),
+			AD799X_CHANNEL_WITH_EVENTS(1, 10),
+			AD799X_CHANNEL_WITH_EVENTS(2, 10),
+			AD799X_CHANNEL_WITH_EVENTS(3, 10),
+			AD799X_CHANNEL(4, 10),
+			AD799X_CHANNEL(5, 10),
+			AD799X_CHANNEL(6, 10),
+			AD799X_CHANNEL(7, 10),
 			IIO_CHAN_SOFT_TIMESTAMP(8),
 		},
 		.num_channels = 9,
@@ -562,14 +587,14 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
 	},
 	[ad7998] = {
 		.channel = {
-			AD799X_CHANNEL(0, 12, AD799X_EV_MASK),
-			AD799X_CHANNEL(1, 12, AD799X_EV_MASK),
-			AD799X_CHANNEL(2, 12, AD799X_EV_MASK),
-			AD799X_CHANNEL(3, 12, AD799X_EV_MASK),
-			AD799X_CHANNEL(4, 12, 0),
-			AD799X_CHANNEL(5, 12, 0),
-			AD799X_CHANNEL(6, 12, 0),
-			AD799X_CHANNEL(7, 12, 0),
+			AD799X_CHANNEL_WITH_EVENTS(0, 12),
+			AD799X_CHANNEL_WITH_EVENTS(1, 12),
+			AD799X_CHANNEL_WITH_EVENTS(2, 12),
+			AD799X_CHANNEL_WITH_EVENTS(3, 12),
+			AD799X_CHANNEL(4, 12),
+			AD799X_CHANNEL(5, 12),
+			AD799X_CHANNEL(6, 12),
+			AD799X_CHANNEL(7, 12),
 			IIO_CHAN_SOFT_TIMESTAMP(8),
 		},
 		.num_channels = 9,
-- 
cgit 


From 1489d629a481dc78ba493c4449d91c034f67f047 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 15:11:00 +0100
Subject: staging:iio:ad7150: Switch to new event config interface

Switch the ad7150 driver to the new IIO event config interface as the old one
is going to be removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/cdc/ad7150.c | 163 ++++++++++++++++++++++++---------------
 1 file changed, 99 insertions(+), 64 deletions(-)

diff --git a/drivers/staging/iio/cdc/ad7150.c b/drivers/staging/iio/cdc/ad7150.c
index f4a0341cc70c..14a28c4b3a46 100644
--- a/drivers/staging/iio/cdc/ad7150.c
+++ b/drivers/staging/iio/cdc/ad7150.c
@@ -123,14 +123,14 @@ static int ad7150_read_raw(struct iio_dev *indio_dev,
 	}
 }
 
-static int ad7150_read_event_config(struct iio_dev *indio_dev, u64 event_code)
+static int ad7150_read_event_config(struct iio_dev *indio_dev,
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir)
 {
 	int ret;
 	u8 threshtype;
 	bool adaptive;
 	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-	int rising = !!(IIO_EVENT_CODE_EXTRACT_DIR(event_code) ==
-			IIO_EV_DIR_RISING);
 
 	ret = i2c_smbus_read_byte_data(chip->client, AD7150_CFG);
 	if (ret < 0)
@@ -139,42 +139,47 @@ static int ad7150_read_event_config(struct iio_dev *indio_dev, u64 event_code)
 	threshtype = (ret >> 5) & 0x03;
 	adaptive = !!(ret & 0x80);
 
-	switch (IIO_EVENT_CODE_EXTRACT_TYPE(event_code)) {
+	switch (type) {
 	case IIO_EV_TYPE_MAG_ADAPTIVE:
-		if (rising)
+		if (dir == IIO_EV_DIR_RISING)
 			return adaptive && (threshtype == 0x1);
 		else
 			return adaptive && (threshtype == 0x0);
 	case IIO_EV_TYPE_THRESH_ADAPTIVE:
-		if (rising)
+		if (dir == IIO_EV_DIR_RISING)
 			return adaptive && (threshtype == 0x3);
 		else
 			return adaptive && (threshtype == 0x2);
 
 	case IIO_EV_TYPE_THRESH:
-		if (rising)
+		if (dir == IIO_EV_DIR_RISING)
 			return !adaptive && (threshtype == 0x1);
 		else
 			return !adaptive && (threshtype == 0x0);
+	default:
+		break;
 	}
 	return -EINVAL;
 }
 
 /* lock should be held */
-static int ad7150_write_event_params(struct iio_dev *indio_dev, u64 event_code)
+static int ad7150_write_event_params(struct iio_dev *indio_dev,
+	 unsigned int chan, enum iio_event_type type,
+	 enum iio_event_direction dir)
 {
 	int ret;
 	u16 value;
 	u8 sens, timeout;
 	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-	int chan = IIO_EVENT_CODE_EXTRACT_CHAN(event_code);
-	int rising = !!(IIO_EVENT_CODE_EXTRACT_DIR(event_code) ==
-			IIO_EV_DIR_RISING);
+	int rising = (dir == IIO_EV_DIR_RISING);
+	u64 event_code;
+
+	event_code = IIO_UNMOD_EVENT_CODE(IIO_CAPACITANCE, chan, type, dir);
 
 	if (event_code != chip->current_event)
 		return 0;
 
-	switch (IIO_EVENT_CODE_EXTRACT_TYPE(event_code)) {
+	switch (type) {
 		/* Note completely different from the adaptive versions */
 	case IIO_EV_TYPE_THRESH:
 		value = chip->threshold[rising][chan];
@@ -211,18 +216,20 @@ static int ad7150_write_event_params(struct iio_dev *indio_dev, u64 event_code)
 }
 
 static int ad7150_write_event_config(struct iio_dev *indio_dev,
-				     u64 event_code, int state)
+	const struct iio_chan_spec *chan, enum iio_event_type type,
+	enum iio_event_direction dir, int state)
 {
 	u8 thresh_type, cfg, adaptive;
 	int ret;
 	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-	int rising = !!(IIO_EVENT_CODE_EXTRACT_DIR(event_code) ==
-			IIO_EV_DIR_RISING);
+	int rising = (dir == IIO_EV_DIR_RISING);
+	u64 event_code;
 
 	/* Something must always be turned on */
 	if (state == 0)
 		return -EINVAL;
 
+	event_code = IIO_UNMOD_EVENT_CODE(chan->type, chan->channel, type, dir);
 	if (event_code == chip->current_event)
 		return 0;
 	mutex_lock(&chip->state_lock);
@@ -232,7 +239,7 @@ static int ad7150_write_event_config(struct iio_dev *indio_dev,
 
 	cfg = ret & ~((0x03 << 5) | (0x1 << 7));
 
-	switch (IIO_EVENT_CODE_EXTRACT_TYPE(event_code)) {
+	switch (type) {
 	case IIO_EV_TYPE_MAG_ADAPTIVE:
 		adaptive = 1;
 		if (rising)
@@ -268,7 +275,7 @@ static int ad7150_write_event_config(struct iio_dev *indio_dev,
 	chip->current_event = event_code;
 
 	/* update control attributes */
-	ret = ad7150_write_event_params(indio_dev, event_code);
+	ret = ad7150_write_event_params(indio_dev, chan->channel, type, dir);
 error_ret:
 	mutex_unlock(&chip->state_lock);
 
@@ -276,53 +283,52 @@ error_ret:
 }
 
 static int ad7150_read_event_value(struct iio_dev *indio_dev,
-				   u64 event_code,
-				   int *val)
+				   const struct iio_chan_spec *chan,
+				   enum iio_event_type type,
+				   enum iio_event_direction dir,
+				   enum iio_event_info info,
+				   int *val, int *val2)
 {
-	int chan = IIO_EVENT_CODE_EXTRACT_CHAN(event_code);
 	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-	int rising = !!(IIO_EVENT_CODE_EXTRACT_DIR(event_code) ==
-			IIO_EV_DIR_RISING);
+	int rising = (dir == IIO_EV_DIR_RISING);
 
 	/* Complex register sharing going on here */
-	switch (IIO_EVENT_CODE_EXTRACT_TYPE(event_code)) {
+	switch (type) {
 	case IIO_EV_TYPE_MAG_ADAPTIVE:
-		*val = chip->mag_sensitivity[rising][chan];
-		return 0;
-
+		*val = chip->mag_sensitivity[rising][chan->channel];
+		return IIO_VAL_INT;
 	case IIO_EV_TYPE_THRESH_ADAPTIVE:
-		*val = chip->thresh_sensitivity[rising][chan];
-		return 0;
-
+		*val = chip->thresh_sensitivity[rising][chan->channel];
+		return IIO_VAL_INT;
 	case IIO_EV_TYPE_THRESH:
-		*val = chip->threshold[rising][chan];
-		return 0;
-
+		*val = chip->threshold[rising][chan->channel];
+		return IIO_VAL_INT;
 	default:
 		return -EINVAL;
 	};
 }
 
 static int ad7150_write_event_value(struct iio_dev *indio_dev,
-				   u64 event_code,
-				   int val)
+				   const struct iio_chan_spec *chan,
+				   enum iio_event_type type,
+				   enum iio_event_direction dir,
+				   enum iio_event_info info,
+				   int val, int val2)
 {
 	int ret;
 	struct ad7150_chip_info *chip = iio_priv(indio_dev);
-	int chan = IIO_EVENT_CODE_EXTRACT_CHAN(event_code);
-	int rising = !!(IIO_EVENT_CODE_EXTRACT_DIR(event_code) ==
-			IIO_EV_DIR_RISING);
+	int rising = (dir == IIO_EV_DIR_RISING);
 
 	mutex_lock(&chip->state_lock);
-	switch (IIO_EVENT_CODE_EXTRACT_TYPE(event_code)) {
+	switch (type) {
 	case IIO_EV_TYPE_MAG_ADAPTIVE:
-		chip->mag_sensitivity[rising][chan] = val;
+		chip->mag_sensitivity[rising][chan->channel] = val;
 		break;
 	case IIO_EV_TYPE_THRESH_ADAPTIVE:
-		chip->thresh_sensitivity[rising][chan] = val;
+		chip->thresh_sensitivity[rising][chan->channel] = val;
 		break;
 	case IIO_EV_TYPE_THRESH:
-		chip->threshold[rising][chan] = val;
+		chip->threshold[rising][chan->channel] = val;
 		break;
 	default:
 		ret = -EINVAL;
@@ -330,7 +336,7 @@ static int ad7150_write_event_value(struct iio_dev *indio_dev,
 	}
 
 	/* write back if active */
-	ret = ad7150_write_event_params(indio_dev, event_code);
+	ret = ad7150_write_event_params(indio_dev, chan->channel, type, dir);
 
 error_ret:
 	mutex_unlock(&chip->state_lock);
@@ -374,17 +380,22 @@ static ssize_t ad7150_store_timeout(struct device *dev,
 	struct ad7150_chip_info *chip = iio_priv(indio_dev);
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	int chan = IIO_EVENT_CODE_EXTRACT_CHAN(this_attr->address);
-	int rising = !!(IIO_EVENT_CODE_EXTRACT_DIR(this_attr->address) ==
-			IIO_EV_DIR_RISING);
+	enum iio_event_direction dir;
+	enum iio_event_type type;
+	int rising;
 	u8 data;
 	int ret;
 
+	type = IIO_EVENT_CODE_EXTRACT_TYPE(this_attr->address);
+	dir = IIO_EVENT_CODE_EXTRACT_DIR(this_attr->address);
+	rising = (dir == IIO_EV_DIR_RISING);
+
 	ret = kstrtou8(buf, 10, &data);
 	if (ret < 0)
 		return ret;
 
 	mutex_lock(&chip->state_lock);
-	switch (IIO_EVENT_CODE_EXTRACT_TYPE(this_attr->address)) {
+	switch (type) {
 	case IIO_EV_TYPE_MAG_ADAPTIVE:
 		chip->mag_timeout[rising][chan] = data;
 		break;
@@ -396,7 +407,7 @@ static ssize_t ad7150_store_timeout(struct device *dev,
 		goto error_ret;
 	}
 
-	ret = ad7150_write_event_params(indio_dev, this_attr->address);
+	ret = ad7150_write_event_params(indio_dev, chan, type, dir);
 error_ret:
 	mutex_unlock(&chip->state_lock);
 
@@ -424,6 +435,40 @@ static AD7150_TIMEOUT(0, thresh_adaptive, falling, THRESH_ADAPTIVE, FALLING);
 static AD7150_TIMEOUT(1, thresh_adaptive, rising, THRESH_ADAPTIVE, RISING);
 static AD7150_TIMEOUT(1, thresh_adaptive, falling, THRESH_ADAPTIVE, FALLING);
 
+static const struct iio_event_spec ad7150_events[] = {
+	{
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH_ADAPTIVE,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH_ADAPTIVE,
+		.dir = IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_MAG_ADAPTIVE,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_MAG_ADAPTIVE,
+		.dir = IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	},
+};
+
 static const struct iio_chan_spec ad7150_channels[] = {
 	{
 		.type = IIO_CAPACITANCE,
@@ -431,26 +476,16 @@ static const struct iio_chan_spec ad7150_channels[] = {
 		.channel = 0,
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
 		BIT(IIO_CHAN_INFO_AVERAGE_RAW),
-		.event_mask =
-		IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING) |
-		IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING) |
-		IIO_EV_BIT(IIO_EV_TYPE_THRESH_ADAPTIVE, IIO_EV_DIR_RISING) |
-		IIO_EV_BIT(IIO_EV_TYPE_THRESH_ADAPTIVE, IIO_EV_DIR_FALLING) |
-		IIO_EV_BIT(IIO_EV_TYPE_MAG_ADAPTIVE, IIO_EV_DIR_RISING) |
-		IIO_EV_BIT(IIO_EV_TYPE_MAG_ADAPTIVE, IIO_EV_DIR_FALLING)
+		.event_spec = ad7150_events,
+		.num_event_specs = ARRAY_SIZE(ad7150_events),
 	}, {
 		.type = IIO_CAPACITANCE,
 		.indexed = 1,
 		.channel = 1,
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
 		BIT(IIO_CHAN_INFO_AVERAGE_RAW),
-		.event_mask =
-		IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING) |
-		IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING) |
-		IIO_EV_BIT(IIO_EV_TYPE_THRESH_ADAPTIVE, IIO_EV_DIR_RISING) |
-		IIO_EV_BIT(IIO_EV_TYPE_THRESH_ADAPTIVE, IIO_EV_DIR_FALLING) |
-		IIO_EV_BIT(IIO_EV_TYPE_MAG_ADAPTIVE, IIO_EV_DIR_RISING) |
-		IIO_EV_BIT(IIO_EV_TYPE_MAG_ADAPTIVE, IIO_EV_DIR_FALLING)
+		.event_spec = ad7150_events,
+		.num_event_specs = ARRAY_SIZE(ad7150_events),
 	},
 };
 
@@ -541,10 +576,10 @@ static const struct iio_info ad7150_info = {
 	.event_attrs = &ad7150_event_attribute_group,
 	.driver_module = THIS_MODULE,
 	.read_raw = &ad7150_read_raw,
-	.read_event_config = &ad7150_read_event_config,
-	.write_event_config = &ad7150_write_event_config,
-	.read_event_value = &ad7150_read_event_value,
-	.write_event_value = &ad7150_write_event_value,
+	.read_event_config_new = &ad7150_read_event_config,
+	.write_event_config_new = &ad7150_write_event_config,
+	.read_event_value_new = &ad7150_read_event_value,
+	.write_event_value_new = &ad7150_write_event_value,
 };
 
 /*
-- 
cgit 


From bda624b088b2989586a81af23d7355c7b882656d Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 15:11:00 +0100
Subject: staging:iio:simple_dummy: Switch to new event config interface

Switch the simple_dummy driver to the new IIO event config interface as the old
one is going to be removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/iio_simple_dummy.c        | 30 ++++++++++------
 drivers/staging/iio/iio_simple_dummy.h        | 22 ++++++++----
 drivers/staging/iio/iio_simple_dummy_events.c | 49 +++++++++++++++++++--------
 3 files changed, 70 insertions(+), 31 deletions(-)

diff --git a/drivers/staging/iio/iio_simple_dummy.c b/drivers/staging/iio/iio_simple_dummy.c
index 9135e603f587..1fac9894b18c 100644
--- a/drivers/staging/iio/iio_simple_dummy.c
+++ b/drivers/staging/iio/iio_simple_dummy.c
@@ -57,6 +57,20 @@ static const struct iio_dummy_accel_calibscale dummy_scales[] = {
 	{ 733, 13, 0x9 }, /* 733.000013 */
 };
 
+#ifdef CONFIG_IIO_SIMPLE_DUMMY_EVENTS
+
+/*
+ * simple event - triggered when value rises above
+ * a threshold
+ */
+static const struct iio_event_spec iio_dummy_event = {
+	.type = IIO_EV_TYPE_THRESH,
+	.dir = IIO_EV_DIR_RISING,
+	.mask_separate = BIT(IIO_EV_INFO_VALUE) | BIT(IIO_EV_INFO_ENABLE),
+};
+
+#endif
+
 /*
  * iio_dummy_channels - Description of available channels
  *
@@ -104,12 +118,8 @@ static const struct iio_chan_spec iio_dummy_channels[] = {
 			.shift = 0, /* zero shift */
 		},
 #ifdef CONFIG_IIO_SIMPLE_DUMMY_EVENTS
-		/*
-		 * simple event - triggered when value rises above
-		 * a threshold
-		 */
-		.event_mask = IIO_EV_BIT(IIO_EV_TYPE_THRESH,
-					 IIO_EV_DIR_RISING),
+		.event_spec = &iio_dummy_event,
+		.num_event_specs = 1,
 #endif /* CONFIG_IIO_SIMPLE_DUMMY_EVENTS */
 	},
 	/* Differential ADC channel in_voltage1-voltage2_raw etc*/
@@ -360,10 +370,10 @@ static const struct iio_info iio_dummy_info = {
 	.read_raw = &iio_dummy_read_raw,
 	.write_raw = &iio_dummy_write_raw,
 #ifdef CONFIG_IIO_SIMPLE_DUMMY_EVENTS
-	.read_event_config = &iio_simple_dummy_read_event_config,
-	.write_event_config = &iio_simple_dummy_write_event_config,
-	.read_event_value = &iio_simple_dummy_read_event_value,
-	.write_event_value = &iio_simple_dummy_write_event_value,
+	.read_event_config_new = &iio_simple_dummy_read_event_config,
+	.write_event_config_new = &iio_simple_dummy_write_event_config,
+	.read_event_value_new = &iio_simple_dummy_read_event_value,
+	.write_event_value_new = &iio_simple_dummy_write_event_value,
 #endif /* CONFIG_IIO_SIMPLE_DUMMY_EVENTS */
 };
 
diff --git a/drivers/staging/iio/iio_simple_dummy.h b/drivers/staging/iio/iio_simple_dummy.h
index c9e8702caca4..b126196cdf3d 100644
--- a/drivers/staging/iio/iio_simple_dummy.h
+++ b/drivers/staging/iio/iio_simple_dummy.h
@@ -45,19 +45,29 @@ struct iio_dummy_state {
 struct iio_dev;
 
 int iio_simple_dummy_read_event_config(struct iio_dev *indio_dev,
-				       u64 event_code);
+				       const struct iio_chan_spec *chan,
+				       enum iio_event_type type,
+				       enum iio_event_direction dir);
 
 int iio_simple_dummy_write_event_config(struct iio_dev *indio_dev,
-					u64 event_code,
+					const struct iio_chan_spec *chan,
+					enum iio_event_type type,
+					enum iio_event_direction dir,
 					int state);
 
 int iio_simple_dummy_read_event_value(struct iio_dev *indio_dev,
-				      u64 event_code,
-				      int *val);
+				      const struct iio_chan_spec *chan,
+				      enum iio_event_type type,
+				      enum iio_event_direction dir,
+				      enum iio_event_info info, int *val,
+				      int *val2);
 
 int iio_simple_dummy_write_event_value(struct iio_dev *indio_dev,
-				       u64 event_code,
-				       int val);
+				       const struct iio_chan_spec *chan,
+				       enum iio_event_type type,
+				       enum iio_event_direction dir,
+				       enum iio_event_info info, int val,
+				       int val2);
 
 int iio_simple_dummy_events_register(struct iio_dev *indio_dev);
 int iio_simple_dummy_events_unregister(struct iio_dev *indio_dev);
diff --git a/drivers/staging/iio/iio_simple_dummy_events.c b/drivers/staging/iio/iio_simple_dummy_events.c
index 317b77465db4..812ebd05a7fe 100644
--- a/drivers/staging/iio/iio_simple_dummy_events.c
+++ b/drivers/staging/iio/iio_simple_dummy_events.c
@@ -23,13 +23,17 @@
 /**
  * iio_simple_dummy_read_event_config() - is event enabled?
  * @indio_dev: the device instance data
- * @event_code: event code of the event being queried
+ * @chan: channel for the event whose state is being queried
+ * @type: type of the event whose state is being queried
+ * @dir: direction of the vent whose state is being queried
  *
  * This function would normally query the relevant registers or a cache to
  * discover if the event generation is enabled on the device.
  */
 int iio_simple_dummy_read_event_config(struct iio_dev *indio_dev,
-				       u64 event_code)
+				       const struct iio_chan_spec *chan,
+				       enum iio_event_type type,
+				       enum iio_event_direction dir)
 {
 	struct iio_dummy_state *st = iio_priv(indio_dev);
 
@@ -39,7 +43,9 @@ int iio_simple_dummy_read_event_config(struct iio_dev *indio_dev,
 /**
  * iio_simple_dummy_write_event_config() - set whether event is enabled
  * @indio_dev: the device instance data
- * @event_code: event code of event being enabled/disabled
+ * @chan: channel for the event whose state is being set
+ * @type: type of the event whose state is being set
+ * @dir: direction of the vent whose state is being set
  * @state: whether to enable or disable the device.
  *
  * This function would normally set the relevant registers on the devices
@@ -47,7 +53,9 @@ int iio_simple_dummy_read_event_config(struct iio_dev *indio_dev,
  * value.
  */
 int iio_simple_dummy_write_event_config(struct iio_dev *indio_dev,
-					u64 event_code,
+					const struct iio_chan_spec *chan,
+					enum iio_event_type type,
+					enum iio_event_direction dir,
 					int state)
 {
 	struct iio_dummy_state *st = iio_priv(indio_dev);
@@ -56,12 +64,11 @@ int iio_simple_dummy_write_event_config(struct iio_dev *indio_dev,
 	 *  Deliberately over the top code splitting to illustrate
 	 * how this is done when multiple events exist.
 	 */
-	switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) {
+	switch (chan->type) {
 	case IIO_VOLTAGE:
-		switch (IIO_EVENT_CODE_EXTRACT_TYPE(event_code)) {
+		switch (type) {
 		case IIO_EV_TYPE_THRESH:
-			if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) ==
-			    IIO_EV_DIR_RISING)
+			if (dir == IIO_EV_DIR_RISING)
 				st->event_en = state;
 			else
 				return -EINVAL;
@@ -79,7 +86,10 @@ int iio_simple_dummy_write_event_config(struct iio_dev *indio_dev,
 /**
  * iio_simple_dummy_read_event_value() - get value associated with event
  * @indio_dev: device instance specific data
- * @event_code: event code for the event whose value is being queried
+ * @chan: channel for the event whose value is being read
+ * @type: type of the event whose value is being read
+ * @dir: direction of the vent whose value is being read
+ * @info: info type of the event whose value is being read
  * @val: value for the event code.
  *
  * Many devices provide a large set of events of which only a subset may
@@ -89,25 +99,34 @@ int iio_simple_dummy_write_event_config(struct iio_dev *indio_dev,
  * the enabled event is changed.
  */
 int iio_simple_dummy_read_event_value(struct iio_dev *indio_dev,
-				      u64 event_code,
-				      int *val)
+				      const struct iio_chan_spec *chan,
+				      enum iio_event_type type,
+				      enum iio_event_direction dir,
+					  enum iio_event_info info,
+				      int *val, int *val2)
 {
 	struct iio_dummy_state *st = iio_priv(indio_dev);
 
 	*val = st->event_val;
 
-	return 0;
+	return IIO_VAL_INT;
 }
 
 /**
  * iio_simple_dummy_write_event_value() - set value associate with event
  * @indio_dev: device instance specific data
- * @event_code: event code for the event whose value is being set
+ * @chan: channel for the event whose value is being set
+ * @type: type of the event whose value is being set
+ * @dir: direction of the vent whose value is being set
+ * @info: info type of the event whose value is being set
  * @val: the value to be set.
  */
 int iio_simple_dummy_write_event_value(struct iio_dev *indio_dev,
-				       u64 event_code,
-				       int val)
+				       const struct iio_chan_spec *chan,
+				       enum iio_event_type type,
+				       enum iio_event_direction dir,
+					   enum iio_event_info info,
+				       int val, int val2)
 {
 	struct iio_dummy_state *st = iio_priv(indio_dev);
 
-- 
cgit 


From 3ea48e01247f07185480e82a79c201df9d905f50 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 15:11:00 +0100
Subject: staging:iio:tsl2x7x: Switch to new event config interface

Switch the tsl2x7x driver to the new IIO event config interface as the old one
is going to be removed.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Jon Brenner <jbrenner@taosinc.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/light/tsl2x7x_core.c | 120 +++++++++++++++++++------------
 1 file changed, 73 insertions(+), 47 deletions(-)

diff --git a/drivers/staging/iio/light/tsl2x7x_core.c b/drivers/staging/iio/light/tsl2x7x_core.c
index 9c43dcf444c2..18805029d2a9 100644
--- a/drivers/staging/iio/light/tsl2x7x_core.c
+++ b/drivers/staging/iio/light/tsl2x7x_core.c
@@ -124,11 +124,6 @@
 #define TSL2X7X_mA13                   0xD0
 #define TSL2X7X_MAX_TIMER_CNT          (0xFF)
 
-/*Common device IIO EventMask */
-#define TSL2X7X_EVENT_MASK \
-		(IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING) | \
-		IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING)),
-
 #define TSL2X7X_MIN_ITIME 3
 
 /* TAOS txx2x7x Device family members */
@@ -1222,12 +1217,14 @@ static ssize_t tsl2x7x_do_prox_calibrate(struct device *dev,
 }
 
 static int tsl2x7x_read_interrupt_config(struct iio_dev *indio_dev,
-					 u64 event_code)
+					 const struct iio_chan_spec *chan,
+					 enum iio_event_type type,
+					 enum iio_event_direction dir)
 {
 	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
 	int ret;
 
-	if (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code) == IIO_INTENSITY)
+	if (chan->type == IIO_INTENSITY)
 		ret = !!(chip->tsl2x7x_settings.interrupts_en & 0x10);
 	else
 		ret = !!(chip->tsl2x7x_settings.interrupts_en & 0x20);
@@ -1236,12 +1233,14 @@ static int tsl2x7x_read_interrupt_config(struct iio_dev *indio_dev,
 }
 
 static int tsl2x7x_write_interrupt_config(struct iio_dev *indio_dev,
-					  u64 event_code,
+					  const struct iio_chan_spec *chan,
+					  enum iio_event_type type,
+					  enum iio_event_direction dir,
 					  int val)
 {
 	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
 
-	if (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code) == IIO_INTENSITY) {
+	if (chan->type == IIO_INTENSITY) {
 		if (val)
 			chip->tsl2x7x_settings.interrupts_en |= 0x10;
 		else
@@ -1259,13 +1258,16 @@ static int tsl2x7x_write_interrupt_config(struct iio_dev *indio_dev,
 }
 
 static int tsl2x7x_write_thresh(struct iio_dev *indio_dev,
-				  u64 event_code,
-				  int val)
+				const struct iio_chan_spec *chan,
+				enum iio_event_type type,
+				enum iio_event_direction dir,
+				enum iio_event_info info,
+				int val, int val2)
 {
 	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
 
-	if (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code) == IIO_INTENSITY) {
-		switch (IIO_EVENT_CODE_EXTRACT_DIR(event_code)) {
+	if (chan->type == IIO_INTENSITY) {
+		switch (dir) {
 		case IIO_EV_DIR_RISING:
 			chip->tsl2x7x_settings.als_thresh_high = val;
 			break;
@@ -1276,7 +1278,7 @@ static int tsl2x7x_write_thresh(struct iio_dev *indio_dev,
 			return -EINVAL;
 		}
 	} else {
-		switch (IIO_EVENT_CODE_EXTRACT_DIR(event_code)) {
+		switch (dir) {
 		case IIO_EV_DIR_RISING:
 			chip->tsl2x7x_settings.prox_thres_high = val;
 			break;
@@ -1294,13 +1296,16 @@ static int tsl2x7x_write_thresh(struct iio_dev *indio_dev,
 }
 
 static int tsl2x7x_read_thresh(struct iio_dev *indio_dev,
-			       u64 event_code,
-			       int *val)
+			       const struct iio_chan_spec *chan,
+			       enum iio_event_type type,
+			       enum iio_event_direction dir,
+				   enum iio_event_info info,
+			       int *val, int *val2)
 {
 	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
 
-	if (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code) == IIO_INTENSITY) {
-		switch (IIO_EVENT_CODE_EXTRACT_DIR(event_code)) {
+	if (chan->type == IIO_INTENSITY) {
+		switch (dir) {
 		case IIO_EV_DIR_RISING:
 			*val = chip->tsl2x7x_settings.als_thresh_high;
 			break;
@@ -1311,7 +1316,7 @@ static int tsl2x7x_read_thresh(struct iio_dev *indio_dev,
 			return -EINVAL;
 		}
 	} else {
-		switch (IIO_EVENT_CODE_EXTRACT_DIR(event_code)) {
+		switch (dir) {
 		case IIO_EV_DIR_RISING:
 			*val = chip->tsl2x7x_settings.prox_thres_high;
 			break;
@@ -1323,7 +1328,7 @@ static int tsl2x7x_read_thresh(struct iio_dev *indio_dev,
 		}
 	}
 
-	return 0;
+	return IIO_VAL_INT;
 }
 
 static int tsl2x7x_read_raw(struct iio_dev *indio_dev,
@@ -1667,10 +1672,10 @@ static const struct iio_info tsl2X7X_device_info[] = {
 		.driver_module = THIS_MODULE,
 		.read_raw = &tsl2x7x_read_raw,
 		.write_raw = &tsl2x7x_write_raw,
-		.read_event_value = &tsl2x7x_read_thresh,
-		.write_event_value = &tsl2x7x_write_thresh,
-		.read_event_config = &tsl2x7x_read_interrupt_config,
-		.write_event_config = &tsl2x7x_write_interrupt_config,
+		.read_event_value_new = &tsl2x7x_read_thresh,
+		.write_event_value_new = &tsl2x7x_write_thresh,
+		.read_event_config_new = &tsl2x7x_read_interrupt_config,
+		.write_event_config_new = &tsl2x7x_write_interrupt_config,
 	},
 	[PRX] = {
 		.attrs = &tsl2X7X_device_attr_group_tbl[PRX],
@@ -1678,10 +1683,10 @@ static const struct iio_info tsl2X7X_device_info[] = {
 		.driver_module = THIS_MODULE,
 		.read_raw = &tsl2x7x_read_raw,
 		.write_raw = &tsl2x7x_write_raw,
-		.read_event_value = &tsl2x7x_read_thresh,
-		.write_event_value = &tsl2x7x_write_thresh,
-		.read_event_config = &tsl2x7x_read_interrupt_config,
-		.write_event_config = &tsl2x7x_write_interrupt_config,
+		.read_event_value_new = &tsl2x7x_read_thresh,
+		.write_event_value_new = &tsl2x7x_write_thresh,
+		.read_event_config_new = &tsl2x7x_read_interrupt_config,
+		.write_event_config_new = &tsl2x7x_write_interrupt_config,
 	},
 	[ALSPRX] = {
 		.attrs = &tsl2X7X_device_attr_group_tbl[ALSPRX],
@@ -1689,10 +1694,10 @@ static const struct iio_info tsl2X7X_device_info[] = {
 		.driver_module = THIS_MODULE,
 		.read_raw = &tsl2x7x_read_raw,
 		.write_raw = &tsl2x7x_write_raw,
-		.read_event_value = &tsl2x7x_read_thresh,
-		.write_event_value = &tsl2x7x_write_thresh,
-		.read_event_config = &tsl2x7x_read_interrupt_config,
-		.write_event_config = &tsl2x7x_write_interrupt_config,
+		.read_event_value_new = &tsl2x7x_read_thresh,
+		.write_event_value_new = &tsl2x7x_write_thresh,
+		.read_event_config_new = &tsl2x7x_read_interrupt_config,
+		.write_event_config_new = &tsl2x7x_write_interrupt_config,
 	},
 	[PRX2] = {
 		.attrs = &tsl2X7X_device_attr_group_tbl[PRX2],
@@ -1700,10 +1705,10 @@ static const struct iio_info tsl2X7X_device_info[] = {
 		.driver_module = THIS_MODULE,
 		.read_raw = &tsl2x7x_read_raw,
 		.write_raw = &tsl2x7x_write_raw,
-		.read_event_value = &tsl2x7x_read_thresh,
-		.write_event_value = &tsl2x7x_write_thresh,
-		.read_event_config = &tsl2x7x_read_interrupt_config,
-		.write_event_config = &tsl2x7x_write_interrupt_config,
+		.read_event_value_new = &tsl2x7x_read_thresh,
+		.write_event_value_new = &tsl2x7x_write_thresh,
+		.read_event_config_new = &tsl2x7x_read_interrupt_config,
+		.write_event_config_new = &tsl2x7x_write_interrupt_config,
 	},
 	[ALSPRX2] = {
 		.attrs = &tsl2X7X_device_attr_group_tbl[ALSPRX2],
@@ -1711,10 +1716,24 @@ static const struct iio_info tsl2X7X_device_info[] = {
 		.driver_module = THIS_MODULE,
 		.read_raw = &tsl2x7x_read_raw,
 		.write_raw = &tsl2x7x_write_raw,
-		.read_event_value = &tsl2x7x_read_thresh,
-		.write_event_value = &tsl2x7x_write_thresh,
-		.read_event_config = &tsl2x7x_read_interrupt_config,
-		.write_event_config = &tsl2x7x_write_interrupt_config,
+		.read_event_value_new = &tsl2x7x_read_thresh,
+		.write_event_value_new = &tsl2x7x_write_thresh,
+		.read_event_config_new = &tsl2x7x_read_interrupt_config,
+		.write_event_config_new = &tsl2x7x_write_interrupt_config,
+	},
+};
+
+static const struct iio_event_spec tsl2x7x_events[] = {
+	{
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_RISING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_FALLING,
+		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
+			BIT(IIO_EV_INFO_ENABLE),
 	},
 };
 
@@ -1733,7 +1752,8 @@ static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = {
 			.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
 				BIT(IIO_CHAN_INFO_CALIBSCALE) |
 				BIT(IIO_CHAN_INFO_CALIBBIAS),
-			.event_mask = TSL2X7X_EVENT_MASK
+			.event_spec = tsl2x7x_events,
+			.num_event_specs = ARRAY_SIZE(tsl2x7x_events),
 			}, {
 			.type = IIO_INTENSITY,
 			.indexed = 1,
@@ -1750,7 +1770,8 @@ static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = {
 			.indexed = 1,
 			.channel = 0,
 			.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-			.event_mask = TSL2X7X_EVENT_MASK
+			.event_spec = tsl2x7x_events,
+			.num_event_specs = ARRAY_SIZE(tsl2x7x_events),
 			},
 		},
 	.chan_table_elements = 1,
@@ -1770,7 +1791,8 @@ static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = {
 			.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
 				BIT(IIO_CHAN_INFO_CALIBSCALE) |
 				BIT(IIO_CHAN_INFO_CALIBBIAS),
-			.event_mask = TSL2X7X_EVENT_MASK
+			.event_spec = tsl2x7x_events,
+			.num_event_specs = ARRAY_SIZE(tsl2x7x_events),
 			}, {
 			.type = IIO_INTENSITY,
 			.indexed = 1,
@@ -1781,7 +1803,8 @@ static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = {
 			.indexed = 1,
 			.channel = 0,
 			.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
-			.event_mask = TSL2X7X_EVENT_MASK
+			.event_spec = tsl2x7x_events,
+			.num_event_specs = ARRAY_SIZE(tsl2x7x_events),
 			},
 		},
 	.chan_table_elements = 4,
@@ -1795,7 +1818,8 @@ static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = {
 			.channel = 0,
 			.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
 				BIT(IIO_CHAN_INFO_CALIBSCALE),
-			.event_mask = TSL2X7X_EVENT_MASK
+			.event_spec = tsl2x7x_events,
+			.num_event_specs = ARRAY_SIZE(tsl2x7x_events),
 			},
 		},
 	.chan_table_elements = 1,
@@ -1815,7 +1839,8 @@ static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = {
 			.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
 				BIT(IIO_CHAN_INFO_CALIBSCALE) |
 				BIT(IIO_CHAN_INFO_CALIBBIAS),
-			.event_mask = TSL2X7X_EVENT_MASK
+			.event_spec = tsl2x7x_events,
+			.num_event_specs = ARRAY_SIZE(tsl2x7x_events),
 			}, {
 			.type = IIO_INTENSITY,
 			.indexed = 1,
@@ -1827,7 +1852,8 @@ static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = {
 			.channel = 0,
 			.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
 				BIT(IIO_CHAN_INFO_CALIBSCALE),
-			.event_mask = TSL2X7X_EVENT_MASK
+			.event_spec = tsl2x7x_events,
+			.num_event_specs = ARRAY_SIZE(tsl2x7x_events),
 			},
 		},
 	.chan_table_elements = 4,
-- 
cgit 


From ec6670ae53c13d767bdb7b3e37755ad661395380 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 15:11:00 +0100
Subject: iio: Add a hysteresis event info attribute

For some devices it is possible to configure a hysteresis for threshold (or
similar) events. This patch adds a new hysteresis event info type which allows
for easy creation and read/write handling of the sysfs attribute.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 Documentation/ABI/testing/sysfs-bus-iio | 56 +++++++++++++++++++++++++++++++++
 drivers/iio/industrialio-event.c        |  1 +
 include/linux/iio/types.h               |  1 +
 3 files changed, 58 insertions(+)

diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio
index 2d73620874b2..b20e829d350f 100644
--- a/Documentation/ABI/testing/sysfs-bus-iio
+++ b/Documentation/ABI/testing/sysfs-bus-iio
@@ -537,6 +537,62 @@ Description:
 		value is in raw device units or in processed units (as _raw
 		and _input do on sysfs direct channel read attributes).
 
+What:		/sys/.../events/in_accel_x_thresh_rising_hysteresis
+What:		/sys/.../events/in_accel_x_thresh_falling_hysteresis
+What:		/sys/.../events/in_accel_x_thresh_either_hysteresis
+What:		/sys/.../events/in_accel_y_thresh_rising_hysteresis
+What:		/sys/.../events/in_accel_y_thresh_falling_hysteresis
+What:		/sys/.../events/in_accel_y_thresh_either_hysteresis
+What:		/sys/.../events/in_accel_z_thresh_rising_hysteresis
+What:		/sys/.../events/in_accel_z_thresh_falling_hysteresis
+What:		/sys/.../events/in_accel_z_thresh_either_hysteresis
+What:		/sys/.../events/in_anglvel_x_thresh_rising_hysteresis
+What:		/sys/.../events/in_anglvel_x_thresh_falling_hysteresis
+What:		/sys/.../events/in_anglvel_x_thresh_either_hysteresis
+What:		/sys/.../events/in_anglvel_y_thresh_rising_hysteresis
+What:		/sys/.../events/in_anglvel_y_thresh_falling_hysteresis
+What:		/sys/.../events/in_anglvel_y_thresh_either_hysteresis
+What:		/sys/.../events/in_anglvel_z_thresh_rising_hysteresis
+What:		/sys/.../events/in_anglvel_z_thresh_falling_hysteresis
+What:		/sys/.../events/in_anglvel_z_thresh_either_hysteresis
+What:		/sys/.../events/in_magn_x_thresh_rising_hysteresis
+What:		/sys/.../events/in_magn_x_thresh_falling_hysteresis
+What:		/sys/.../events/in_magn_x_thresh_either_hysteresis
+What:		/sys/.../events/in_magn_y_thresh_rising_hysteresis
+What:		/sys/.../events/in_magn_y_thresh_falling_hysteresis
+What:		/sys/.../events/in_magn_y_thresh_either_hysteresis
+What:		/sys/.../events/in_magn_z_thresh_rising_hysteresis
+What:		/sys/.../events/in_magn_z_thresh_falling_hysteresis
+What:		/sys/.../events/in_magn_z_thresh_either_hysteresis
+What:		/sys/.../events/in_voltageY_thresh_rising_hysteresis
+What:		/sys/.../events/in_voltageY_thresh_falling_hysteresis
+What:		/sys/.../events/in_voltageY_thresh_either_hysteresis
+What:		/sys/.../events/in_tempY_thresh_rising_hysteresis
+What:		/sys/.../events/in_tempY_thresh_falling_hysteresis
+What:		/sys/.../events/in_tempY_thresh_either_hysteresis
+What:		/sys/.../events/in_illuminance0_thresh_falling_hysteresis
+what:		/sys/.../events/in_illuminance0_thresh_rising_hysteresis
+what:		/sys/.../events/in_illuminance0_thresh_either_hysteresis
+what:		/sys/.../events/in_proximity0_thresh_falling_hysteresis
+what:		/sys/.../events/in_proximity0_thresh_rising_hysteresis
+what:		/sys/.../events/in_proximity0_thresh_either_hysteresis
+KernelVersion:	3.13
+Contact:	linux-iio@vger.kernel.org
+Description:
+		Specifies the hysteresis of threshold that the device is comparing
+		against for the events enabled by
+		<type>Y[_name]_thresh[_(rising|falling)]_hysteresis.
+		If separate attributes exist for the two directions, but
+		direction is not specified for this attribute, then a single
+		hysteresis value applies to both directions.
+		For falling events the hysteresis is added to the _value attribute for
+		this event to get the upper threshold for when the event goes back to
+		normal, for rising events the hysteresis is subtracted from the _value
+		attribute. E.g. if in_voltage0_raw_thresh_rising_value is set to 1200
+		and in_voltage0_raw_thresh_rising_hysteresis is set to 50. The event
+		will get activated once in_voltage0_raw goes above 1200 and will become
+		deactived again once the value falls below 1150.
+
 What:		/sys/.../events/in_accel_x_raw_roc_rising_value
 What:		/sys/.../events/in_accel_x_raw_roc_falling_value
 What:		/sys/.../events/in_accel_y_raw_roc_rising_value
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index b7a5d7cbed42..dac15b9f9df8 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -204,6 +204,7 @@ static const char * const iio_ev_dir_text[] = {
 static const char * const iio_ev_info_text[] = {
 	[IIO_EV_INFO_ENABLE] = "en",
 	[IIO_EV_INFO_VALUE] = "value",
+	[IIO_EV_INFO_HYSTERESIS] = "hysteresis",
 };
 
 static enum iio_event_direction iio_ev_attr_dir(struct iio_dev_attr *attr)
diff --git a/include/linux/iio/types.h b/include/linux/iio/types.h
index 18339ef4ff5d..4ac928ee31c5 100644
--- a/include/linux/iio/types.h
+++ b/include/linux/iio/types.h
@@ -65,6 +65,7 @@ enum iio_event_type {
 enum iio_event_info {
 	IIO_EV_INFO_ENABLE,
 	IIO_EV_INFO_VALUE,
+	IIO_EV_INFO_HYSTERESIS,
 };
 
 enum iio_event_direction {
-- 
cgit 


From 69582b888408cb218a6b346c345db7a66046497b Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 15:11:00 +0100
Subject: staging:iio:ad799x: Simplify threshold register look-up

Given a channel number the corresponding threshold and hysteresis registers can
easily be calculated. No need to use a look-up table.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/ad799x.h      | 16 ++++------------
 drivers/staging/iio/adc/ad799x_core.c | 34 ++++++++++++++--------------------
 2 files changed, 18 insertions(+), 32 deletions(-)

diff --git a/drivers/staging/iio/adc/ad799x.h b/drivers/staging/iio/adc/ad799x.h
index b51680c1c331..a591aa6feae1 100644
--- a/drivers/staging/iio/adc/ad799x.h
+++ b/drivers/staging/iio/adc/ad799x.h
@@ -36,18 +36,10 @@
 #define AD7998_ALERT_STAT_REG			0x1
 #define AD7998_CONF_REG				0x2
 #define AD7998_CYCLE_TMR_REG			0x3
-#define AD7998_DATALOW_CH1_REG			0x4
-#define AD7998_DATAHIGH_CH1_REG			0x5
-#define AD7998_HYST_CH1_REG			0x6
-#define AD7998_DATALOW_CH2_REG			0x7
-#define AD7998_DATAHIGH_CH2_REG			0x8
-#define AD7998_HYST_CH2_REG			0x9
-#define AD7998_DATALOW_CH3_REG			0xA
-#define AD7998_DATAHIGH_CH3_REG			0xB
-#define AD7998_HYST_CH3_REG			0xC
-#define AD7998_DATALOW_CH4_REG			0xD
-#define AD7998_DATAHIGH_CH4_REG			0xE
-#define AD7998_HYST_CH4_REG			0xF
+
+#define AD7998_DATALOW_REG(x)			((x) * 3 + 0x4)
+#define AD7998_DATAHIGH_REG(x)			((x) * 3 + 0x5)
+#define AD7998_HYST_REG(x)			((x) * 3 + 0x6)
 
 #define AD7998_CYC_MASK				0x7
 #define AD7998_CYC_DIS				0x0
diff --git a/drivers/staging/iio/adc/ad799x_core.c b/drivers/staging/iio/adc/ad799x_core.c
index 57bc540b14ae..fa0ada1b1c52 100644
--- a/drivers/staging/iio/adc/ad799x_core.c
+++ b/drivers/staging/iio/adc/ad799x_core.c
@@ -259,12 +259,14 @@ static int ad799x_read_event_config(struct iio_dev *indio_dev,
 	return 1;
 }
 
-static const u8 ad799x_threshold_addresses[][2] = {
-	{ AD7998_DATALOW_CH1_REG, AD7998_DATAHIGH_CH1_REG },
-	{ AD7998_DATALOW_CH2_REG, AD7998_DATAHIGH_CH2_REG },
-	{ AD7998_DATALOW_CH3_REG, AD7998_DATAHIGH_CH3_REG },
-	{ AD7998_DATALOW_CH4_REG, AD7998_DATAHIGH_CH4_REG },
-};
+static int ad799x_threshold_reg(const struct iio_chan_spec *chan,
+					enum iio_event_direction dir)
+{
+	if (dir == IIO_EV_DIR_FALLING)
+		return AD7998_DATALOW_REG(chan->channel);
+	else
+		return AD7998_DATAHIGH_REG(chan->channel);
+}
 
 static int ad799x_write_event_value(struct iio_dev *indio_dev,
 				    const struct iio_chan_spec *chan,
@@ -275,13 +277,9 @@ static int ad799x_write_event_value(struct iio_dev *indio_dev,
 {
 	int ret;
 	struct ad799x_state *st = iio_priv(indio_dev);
-	int direction = dir == IIO_EV_DIR_FALLING;
-	int number = chan->channel;
 
 	mutex_lock(&indio_dev->mlock);
-	ret = ad799x_i2c_write16(st,
-				 ad799x_threshold_addresses[number][direction],
-				 val);
+	ret = ad799x_i2c_write16(st, ad799x_threshold_reg(chan, dir), val);
 	mutex_unlock(&indio_dev->mlock);
 
 	return ret;
@@ -296,14 +294,10 @@ static int ad799x_read_event_value(struct iio_dev *indio_dev,
 {
 	int ret;
 	struct ad799x_state *st = iio_priv(indio_dev);
-	int direction = dir == IIO_EV_DIR_FALLING;
-	int number = chan->channel;
 	u16 valin;
 
 	mutex_lock(&indio_dev->mlock);
-	ret = ad799x_i2c_read16(st,
-				ad799x_threshold_addresses[number][direction],
-				&valin);
+	ret = ad799x_i2c_read16(st, ad799x_threshold_reg(chan, dir), &valin);
 	mutex_unlock(&indio_dev->mlock);
 	if (ret < 0)
 		return ret;
@@ -391,25 +385,25 @@ static IIO_DEVICE_ATTR(in_voltage0_thresh_both_hyst_raw,
 		       S_IRUGO | S_IWUSR,
 		       ad799x_read_channel_config,
 		       ad799x_write_channel_config,
-		       AD7998_HYST_CH1_REG);
+		       AD7998_HYST_REG(0));
 
 static IIO_DEVICE_ATTR(in_voltage1_thresh_both_hyst_raw,
 		       S_IRUGO | S_IWUSR,
 		       ad799x_read_channel_config,
 		       ad799x_write_channel_config,
-		       AD7998_HYST_CH2_REG);
+		       AD7998_HYST_REG(1));
 
 static IIO_DEVICE_ATTR(in_voltage2_thresh_both_hyst_raw,
 		       S_IRUGO | S_IWUSR,
 		       ad799x_read_channel_config,
 		       ad799x_write_channel_config,
-		       AD7998_HYST_CH3_REG);
+		       AD7998_HYST_REG(2));
 
 static IIO_DEVICE_ATTR(in_voltage3_thresh_both_hyst_raw,
 		       S_IRUGO | S_IWUSR,
 		       ad799x_read_channel_config,
 		       ad799x_write_channel_config,
-		       AD7998_HYST_CH4_REG);
+		       AD7998_HYST_REG(3));
 
 static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
 			      ad799x_read_frequency,
-- 
cgit 


From ba1d79613df3e9c015ac695a22b12a6eb413794f Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 15:11:00 +0100
Subject: staging:iio:ad799x: Use event spec for threshold hysteresis

Register the event threshold hysteresis attributes by using the new
IIO_EV_INFO_HYSTERESIS event spec type. This allows us to throw away a good
portion of boiler-plate code.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/ad799x_core.c | 132 ++++++++--------------------------
 1 file changed, 29 insertions(+), 103 deletions(-)

diff --git a/drivers/staging/iio/adc/ad799x_core.c b/drivers/staging/iio/adc/ad799x_core.c
index fa0ada1b1c52..9428be82b655 100644
--- a/drivers/staging/iio/adc/ad799x_core.c
+++ b/drivers/staging/iio/adc/ad799x_core.c
@@ -259,13 +259,23 @@ static int ad799x_read_event_config(struct iio_dev *indio_dev,
 	return 1;
 }
 
-static int ad799x_threshold_reg(const struct iio_chan_spec *chan,
-					enum iio_event_direction dir)
+static unsigned int ad799x_threshold_reg(const struct iio_chan_spec *chan,
+					 enum iio_event_direction dir,
+					 enum iio_event_info info)
 {
-	if (dir == IIO_EV_DIR_FALLING)
-		return AD7998_DATALOW_REG(chan->channel);
-	else
-		return AD7998_DATAHIGH_REG(chan->channel);
+	switch (info) {
+	case IIO_EV_INFO_VALUE:
+		if (dir == IIO_EV_DIR_FALLING)
+			return AD7998_DATALOW_REG(chan->channel);
+		else
+			return AD7998_DATAHIGH_REG(chan->channel);
+	case IIO_EV_INFO_HYSTERESIS:
+		return AD7998_HYST_REG(chan->channel);
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
 }
 
 static int ad799x_write_event_value(struct iio_dev *indio_dev,
@@ -279,7 +289,8 @@ static int ad799x_write_event_value(struct iio_dev *indio_dev,
 	struct ad799x_state *st = iio_priv(indio_dev);
 
 	mutex_lock(&indio_dev->mlock);
-	ret = ad799x_i2c_write16(st, ad799x_threshold_reg(chan, dir), val);
+	ret = ad799x_i2c_write16(st, ad799x_threshold_reg(chan, dir, info),
+		val);
 	mutex_unlock(&indio_dev->mlock);
 
 	return ret;
@@ -297,7 +308,8 @@ static int ad799x_read_event_value(struct iio_dev *indio_dev,
 	u16 valin;
 
 	mutex_lock(&indio_dev->mlock);
-	ret = ad799x_i2c_read16(st, ad799x_threshold_reg(chan, dir), &valin);
+	ret = ad799x_i2c_read16(st, ad799x_threshold_reg(chan, dir, info),
+		&valin);
 	mutex_unlock(&indio_dev->mlock);
 	if (ret < 0)
 		return ret;
@@ -306,46 +318,6 @@ static int ad799x_read_event_value(struct iio_dev *indio_dev,
 	return IIO_VAL_INT;
 }
 
-static ssize_t ad799x_read_channel_config(struct device *dev,
-					struct device_attribute *attr,
-					char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad799x_state *st = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	int ret;
-	u16 val;
-	ret = ad799x_i2c_read16(st, this_attr->address, &val);
-	if (ret)
-		return ret;
-
-	return sprintf(buf, "%d\n", val);
-}
-
-static ssize_t ad799x_write_channel_config(struct device *dev,
-					 struct device_attribute *attr,
-					 const char *buf,
-					 size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad799x_state *st = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-
-	long val;
-	int ret;
-
-	ret = kstrtol(buf, 10, &val);
-	if (ret)
-		return ret;
-
-	mutex_lock(&indio_dev->mlock);
-	ret = ad799x_i2c_write16(st, this_attr->address, val);
-	mutex_unlock(&indio_dev->mlock);
-
-	return ret ? ret : len;
-}
-
 static irqreturn_t ad799x_event_handler(int irq, void *private)
 {
 	struct iio_dev *indio_dev = private;
@@ -381,60 +353,19 @@ done:
 	return IRQ_HANDLED;
 }
 
-static IIO_DEVICE_ATTR(in_voltage0_thresh_both_hyst_raw,
-		       S_IRUGO | S_IWUSR,
-		       ad799x_read_channel_config,
-		       ad799x_write_channel_config,
-		       AD7998_HYST_REG(0));
-
-static IIO_DEVICE_ATTR(in_voltage1_thresh_both_hyst_raw,
-		       S_IRUGO | S_IWUSR,
-		       ad799x_read_channel_config,
-		       ad799x_write_channel_config,
-		       AD7998_HYST_REG(1));
-
-static IIO_DEVICE_ATTR(in_voltage2_thresh_both_hyst_raw,
-		       S_IRUGO | S_IWUSR,
-		       ad799x_read_channel_config,
-		       ad799x_write_channel_config,
-		       AD7998_HYST_REG(2));
-
-static IIO_DEVICE_ATTR(in_voltage3_thresh_both_hyst_raw,
-		       S_IRUGO | S_IWUSR,
-		       ad799x_read_channel_config,
-		       ad799x_write_channel_config,
-		       AD7998_HYST_REG(3));
-
 static IIO_DEV_ATTR_SAMP_FREQ(S_IWUSR | S_IRUGO,
 			      ad799x_read_frequency,
 			      ad799x_write_frequency);
 static IIO_CONST_ATTR_SAMP_FREQ_AVAIL("15625 7812 3906 1953 976 488 244 0");
 
-static struct attribute *ad7993_4_7_8_event_attributes[] = {
-	&iio_dev_attr_in_voltage0_thresh_both_hyst_raw.dev_attr.attr,
-	&iio_dev_attr_in_voltage1_thresh_both_hyst_raw.dev_attr.attr,
-	&iio_dev_attr_in_voltage2_thresh_both_hyst_raw.dev_attr.attr,
-	&iio_dev_attr_in_voltage3_thresh_both_hyst_raw.dev_attr.attr,
-	&iio_dev_attr_sampling_frequency.dev_attr.attr,
-	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
-	NULL,
-};
-
-static struct attribute_group ad7993_4_7_8_event_attrs_group = {
-	.attrs = ad7993_4_7_8_event_attributes,
-	.name = "events",
-};
-
-static struct attribute *ad7992_event_attributes[] = {
-	&iio_dev_attr_in_voltage0_thresh_both_hyst_raw.dev_attr.attr,
-	&iio_dev_attr_in_voltage1_thresh_both_hyst_raw.dev_attr.attr,
+static struct attribute *ad799x_event_attributes[] = {
 	&iio_dev_attr_sampling_frequency.dev_attr.attr,
 	&iio_const_attr_sampling_frequency_available.dev_attr.attr,
 	NULL,
 };
 
-static struct attribute_group ad7992_event_attrs_group = {
-	.attrs = ad7992_event_attributes,
+static struct attribute_group ad799x_event_attrs_group = {
+	.attrs = ad799x_event_attributes,
 	.name = "events",
 };
 
@@ -443,18 +374,9 @@ static const struct iio_info ad7991_info = {
 	.driver_module = THIS_MODULE,
 };
 
-static const struct iio_info ad7992_info = {
-	.read_raw = &ad799x_read_raw,
-	.event_attrs = &ad7992_event_attrs_group,
-	.read_event_config_new = &ad799x_read_event_config,
-	.read_event_value_new = &ad799x_read_event_value,
-	.write_event_value_new = &ad799x_write_event_value,
-	.driver_module = THIS_MODULE,
-};
-
 static const struct iio_info ad7993_4_7_8_info = {
 	.read_raw = &ad799x_read_raw,
-	.event_attrs = &ad7993_4_7_8_event_attrs_group,
+	.event_attrs = &ad799x_event_attrs_group,
 	.read_event_config_new = &ad799x_read_event_config,
 	.read_event_value_new = &ad799x_read_event_value,
 	.write_event_value_new = &ad799x_write_event_value,
@@ -473,6 +395,10 @@ static const struct iio_event_spec ad799x_events[] = {
 		.dir = IIO_EV_DIR_FALLING,
 		.mask_separate = BIT(IIO_EV_INFO_VALUE),
 			BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_EITHER,
+		.mask_separate = BIT(IIO_EV_INFO_HYSTERESIS),
 	},
 };
 
@@ -537,7 +463,7 @@ static const struct ad799x_chip_info ad799x_chip_info_tbl[] = {
 		},
 		.num_channels = 3,
 		.default_config = AD7998_ALERT_EN,
-		.info = &ad7992_info,
+		.info = &ad7993_4_7_8_info,
 	},
 	[ad7993] = {
 		.channel = {
-- 
cgit 


From ec87197fb8518ce3f95a96d66355d01d83376617 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 15:11:00 +0100
Subject: staging:iio:ad7291: Use event spec for threshold hysteresis

Register the event threshold hysteresis attributes by using the new
IIO_EV_INFO_HYSTERESIS event spec type. This allows us to throw away a good
portion of boiler-plate code.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/ad7291.c | 139 ++++++++-------------------------------
 1 file changed, 28 insertions(+), 111 deletions(-)

diff --git a/drivers/staging/iio/adc/ad7291.c b/drivers/staging/iio/adc/ad7291.c
index be4d93a61ae7..d13f8aeeb62f 100644
--- a/drivers/staging/iio/adc/ad7291.c
+++ b/drivers/staging/iio/adc/ad7291.c
@@ -164,92 +164,8 @@ static irqreturn_t ad7291_event_handler(int irq, void *private)
 	return IRQ_HANDLED;
 }
 
-static inline ssize_t ad7291_show_hyst(struct device *dev,
-		struct device_attribute *attr,
-		char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7291_chip_info *chip = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	u16 data;
-	int ret;
-
-	ret = ad7291_i2c_read(chip, this_attr->address, &data);
-	if (ret < 0)
-		return ret;
-
-	return sprintf(buf, "%d\n", data & AD7291_VALUE_MASK);
-}
-
-static inline ssize_t ad7291_set_hyst(struct device *dev,
-				      struct device_attribute *attr,
-				      const char *buf,
-				      size_t len)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct ad7291_chip_info *chip = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	u16 data;
-	int ret;
-
-	ret = kstrtou16(buf, 10, &data);
-
-	if (ret < 0)
-		return ret;
-	if (data > AD7291_VALUE_MASK)
-		return -EINVAL;
-
-	ret = ad7291_i2c_write(chip, this_attr->address, data);
-	if (ret < 0)
-		return ret;
-
-	return len;
-}
-
-static IIO_DEVICE_ATTR(in_temp0_thresh_both_hyst_raw,
-		       S_IRUGO | S_IWUSR,
-		       ad7291_show_hyst, ad7291_set_hyst,
-		       AD7291_HYST(8));
-static IIO_DEVICE_ATTR(in_voltage0_thresh_both_hyst_raw,
-		       S_IRUGO | S_IWUSR,
-		       ad7291_show_hyst, ad7291_set_hyst, AD7291_HYST(0));
-static IIO_DEVICE_ATTR(in_voltage1_thresh_both_hyst_raw,
-		       S_IRUGO | S_IWUSR,
-		       ad7291_show_hyst, ad7291_set_hyst, AD7291_HYST(1));
-static IIO_DEVICE_ATTR(in_voltage2_thresh_both_hyst_raw,
-		       S_IRUGO | S_IWUSR,
-		       ad7291_show_hyst, ad7291_set_hyst, AD7291_HYST(2));
-static IIO_DEVICE_ATTR(in_voltage3_thresh_both_hyst_raw,
-		       S_IRUGO | S_IWUSR,
-		       ad7291_show_hyst, ad7291_set_hyst, AD7291_HYST(3));
-static IIO_DEVICE_ATTR(in_voltage4_thresh_both_hyst_raw,
-		       S_IRUGO | S_IWUSR,
-		       ad7291_show_hyst, ad7291_set_hyst, AD7291_HYST(4));
-static IIO_DEVICE_ATTR(in_voltage5_thresh_both_hyst_raw,
-		       S_IRUGO | S_IWUSR,
-		       ad7291_show_hyst, ad7291_set_hyst, AD7291_HYST(5));
-static IIO_DEVICE_ATTR(in_voltage6_thresh_both_hyst_raw,
-		       S_IRUGO | S_IWUSR,
-		       ad7291_show_hyst, ad7291_set_hyst, AD7291_HYST(6));
-static IIO_DEVICE_ATTR(in_voltage7_thresh_both_hyst_raw,
-		       S_IRUGO | S_IWUSR,
-		       ad7291_show_hyst, ad7291_set_hyst, AD7291_HYST(7));
-
-static struct attribute *ad7291_event_attributes[] = {
-	&iio_dev_attr_in_temp0_thresh_both_hyst_raw.dev_attr.attr,
-	&iio_dev_attr_in_voltage0_thresh_both_hyst_raw.dev_attr.attr,
-	&iio_dev_attr_in_voltage1_thresh_both_hyst_raw.dev_attr.attr,
-	&iio_dev_attr_in_voltage2_thresh_both_hyst_raw.dev_attr.attr,
-	&iio_dev_attr_in_voltage3_thresh_both_hyst_raw.dev_attr.attr,
-	&iio_dev_attr_in_voltage4_thresh_both_hyst_raw.dev_attr.attr,
-	&iio_dev_attr_in_voltage5_thresh_both_hyst_raw.dev_attr.attr,
-	&iio_dev_attr_in_voltage6_thresh_both_hyst_raw.dev_attr.attr,
-	&iio_dev_attr_in_voltage7_thresh_both_hyst_raw.dev_attr.attr,
-	NULL,
-};
-
 static unsigned int ad7291_threshold_reg(const struct iio_chan_spec *chan,
-	enum iio_event_direction dir)
+	enum iio_event_direction dir, enum iio_event_info info)
 {
 	unsigned int offset;
 
@@ -264,10 +180,18 @@ static unsigned int ad7291_threshold_reg(const struct iio_chan_spec *chan,
 	    return 0;
 	}
 
-	if (dir == IIO_EV_DIR_FALLING)
-		return AD7291_DATA_LOW(offset);
-	else
-		return AD7291_DATA_HIGH(offset);
+	switch (info) {
+	case IIO_EV_INFO_VALUE:
+			if (dir == IIO_EV_DIR_FALLING)
+					return AD7291_DATA_HIGH(offset);
+			else
+					return AD7291_DATA_LOW(offset);
+	case IIO_EV_INFO_HYSTERESIS:
+			return AD7291_HYST(offset);
+	default:
+			break;
+	}
+	return 0;
 }
 
 static int ad7291_read_event_value(struct iio_dev *indio_dev,
@@ -281,20 +205,18 @@ static int ad7291_read_event_value(struct iio_dev *indio_dev,
 	int ret;
 	u16 uval;
 
-	ret = ad7291_i2c_read(chip, ad7291_threshold_reg(chan, dir), &uval);
+	ret = ad7291_i2c_read(chip, ad7291_threshold_reg(chan, dir, info),
+		&uval);
 	if (ret < 0)
 		return ret;
 
-	switch (chan->type) {
-	case IIO_VOLTAGE:
+	if (info == IIO_EV_INFO_HYSTERESIS || chan->type == IIO_VOLTAGE)
 		*val = uval & AD7291_VALUE_MASK;
-		return IIO_VAL_INT;
-	case IIO_TEMP:
+
+	else
 		*val = sign_extend32(uval, 11);
-		return IIO_VAL_INT;
-	default:
-		return -EINVAL;
-	};
+
+	return IIO_VAL_INT;
 }
 
 static int ad7291_write_event_value(struct iio_dev *indio_dev,
@@ -306,20 +228,16 @@ static int ad7291_write_event_value(struct iio_dev *indio_dev,
 {
 	struct ad7291_chip_info *chip = iio_priv(indio_dev);
 
-	switch (chan->type) {
-	case IIO_VOLTAGE:
+	if (info == IIO_EV_INFO_HYSTERESIS || chan->type == IIO_VOLTAGE) {
 		if (val > AD7291_VALUE_MASK || val < 0)
 			return -EINVAL;
-		break;
-	case IIO_TEMP:
+	} else {
 		if (val > 2047 || val < -2048)
 			return -EINVAL;
-		break;
-	default:
-		return -EINVAL;
 	}
 
-	return ad7291_i2c_write(chip, ad7291_threshold_reg(chan, dir), val);
+	return ad7291_i2c_write(chip, ad7291_threshold_reg(chan, dir, info),
+		val);
 }
 
 static int ad7291_read_event_config(struct iio_dev *indio_dev,
@@ -493,6 +411,10 @@ static const struct iio_event_spec ad7291_events[] = {
 		.dir = IIO_EV_DIR_FALLING,
 		.mask_separate = BIT(IIO_EV_INFO_VALUE) |
 			BIT(IIO_EV_INFO_ENABLE),
+	}, {
+		.type = IIO_EV_TYPE_THRESH,
+		.dir = IIO_EV_DIR_EITHER,
+		.mask_separate = BIT(IIO_EV_INFO_HYSTERESIS),
 	},
 };
 
@@ -528,17 +450,12 @@ static const struct iio_chan_spec ad7291_channels[] = {
 	}
 };
 
-static struct attribute_group ad7291_event_attribute_group = {
-	.attrs = ad7291_event_attributes,
-};
-
 static const struct iio_info ad7291_info = {
 	.read_raw = &ad7291_read_raw,
 	.read_event_config_new = &ad7291_read_event_config,
 	.write_event_config_new = &ad7291_write_event_config,
 	.read_event_value_new = &ad7291_read_event_value,
 	.write_event_value_new = &ad7291_write_event_value,
-	.event_attrs = &ad7291_event_attribute_group,
 	.driver_module = THIS_MODULE,
 };
 
-- 
cgit 


From 3909fab5a8afdf8f0c9191e3a2660230ef0ef724 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Fri, 4 Oct 2013 12:07:00 +0100
Subject: iio:buffer: Ignore noop requests for iio_update_buffers()

Since the kernel now disables all buffers when a device is unregistered it might
happen that a in-kernel consumer tries to disable that buffer again. So ignore
requests where the buffer already is in the desired state.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/industrialio-buffer.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index d12b384d94bf..796376ac2475 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -664,9 +664,23 @@ int iio_update_buffers(struct iio_dev *indio_dev,
 {
 	int ret;
 
+	if (insert_buffer == remove_buffer)
+		return 0;
+
 	mutex_lock(&indio_dev->info_exist_lock);
 	mutex_lock(&indio_dev->mlock);
 
+	if (insert_buffer && iio_buffer_is_active(insert_buffer))
+		insert_buffer = NULL;
+
+	if (remove_buffer && !iio_buffer_is_active(remove_buffer))
+		remove_buffer = NULL;
+
+	if (!insert_buffer && !remove_buffer) {
+		ret = 0;
+		goto out_unlock;
+	}
+
 	if (indio_dev->info == NULL) {
 		ret = -ENODEV;
 		goto out_unlock;
-- 
cgit 


From d406fd9d9a90534412d4f7fb4077928e63b77247 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 7 Oct 2013 14:26:00 +0100
Subject: staging:iio:spear_adc: Remove unused variable

Remove the scale_mv variable from the read_raw() callback. Fixes the following
warning:
	drivers/staging/iio/adc/spear_adc.c: In function 'spear_read_raw':
	drivers/staging/iio/adc/spear_adc.c:149:6: warning: unused variable 'scale_mv'

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Stefan Roese <sr@denx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/spear_adc.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/staging/iio/adc/spear_adc.c b/drivers/staging/iio/adc/spear_adc.c
index 657e01bd733c..fc99598b532a 100644
--- a/drivers/staging/iio/adc/spear_adc.c
+++ b/drivers/staging/iio/adc/spear_adc.c
@@ -146,7 +146,6 @@ static int spear_read_raw(struct iio_dev *indio_dev,
 			  long mask)
 {
 	struct spear_adc_info *info = iio_priv(indio_dev);
-	u32 scale_mv;
 	u32 status;
 
 	switch (mask) {
-- 
cgit 


From 43b1b8dfb4fa326d89aa5930f88b943cc410cbfa Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 12 Oct 2013 06:01:26 -0700
Subject: Bluetooth: Fix PSM value for L2CAP connectionless data packets

The put_unaligned() for setting the PSM is missing the (__le16 *)
cast. Without this, the PSM information transmitted over the air
are bogus.

In addition, print the used PSM value in the debug message so this
becomes easier to debug in the future.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/l2cap_core.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index a7d10c3596e3..ab976a1c6466 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -2283,7 +2283,8 @@ static struct sk_buff *l2cap_create_connless_pdu(struct l2cap_chan *chan,
 	int err, count, hlen = L2CAP_HDR_SIZE + L2CAP_PSMLEN_SIZE;
 	struct l2cap_hdr *lh;
 
-	BT_DBG("chan %p len %zu priority %u", chan, len, priority);
+	BT_DBG("chan %p psm 0x%2.2x len %zu priority %u", chan,
+	       __le16_to_cpu(chan->psm), len, priority);
 
 	count = min_t(unsigned int, (conn->mtu - hlen), len);
 
@@ -2298,7 +2299,7 @@ static struct sk_buff *l2cap_create_connless_pdu(struct l2cap_chan *chan,
 	lh = (struct l2cap_hdr *) skb_put(skb, L2CAP_HDR_SIZE);
 	lh->cid = cpu_to_le16(chan->dcid);
 	lh->len = cpu_to_le16(len + L2CAP_PSMLEN_SIZE);
-	put_unaligned(chan->psm, skb_put(skb, L2CAP_PSMLEN_SIZE));
+	put_unaligned(chan->psm, (__le16 *) skb_put(skb, L2CAP_PSMLEN_SIZE));
 
 	err = l2cap_skbuff_fromiovec(chan, msg, len, count, skb);
 	if (unlikely(err < 0)) {
-- 
cgit 


From 6a974b50a1b0909803faac3c3228f7c1339d9971 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 12 Oct 2013 07:19:31 -0700
Subject: Bluetooth: Limit security mode 4 level 0 to connection oriented
 channels

The exception for certain PSM channels when it comes to security
mode 4 level 0 should only be checked when actually a connection
oriented channel is established.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/l2cap_core.c | 24 +++++++++++++++---------
 net/bluetooth/l2cap_sock.c | 10 +++++++---
 2 files changed, 22 insertions(+), 12 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index ab976a1c6466..cc51cb860c40 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -677,7 +677,8 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason)
 
 static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan)
 {
-	if (chan->chan_type == L2CAP_CHAN_RAW) {
+	switch (chan->chan_type) {
+	case L2CAP_CHAN_RAW:
 		switch (chan->sec_level) {
 		case BT_SECURITY_HIGH:
 			return HCI_AT_DEDICATED_BONDING_MITM;
@@ -686,15 +687,19 @@ static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan)
 		default:
 			return HCI_AT_NO_BONDING;
 		}
-	} else if (chan->psm == __constant_cpu_to_le16(L2CAP_PSM_SDP)) {
-		if (chan->sec_level == BT_SECURITY_LOW)
-			chan->sec_level = BT_SECURITY_SDP;
+		break;
+	case L2CAP_CHAN_CONN_ORIENTED:
+		if (chan->psm == __constant_cpu_to_le16(L2CAP_PSM_SDP)) {
+			if (chan->sec_level == BT_SECURITY_LOW)
+				chan->sec_level = BT_SECURITY_SDP;
 
-		if (chan->sec_level == BT_SECURITY_HIGH)
-			return HCI_AT_NO_BONDING_MITM;
-		else
-			return HCI_AT_NO_BONDING;
-	} else {
+			if (chan->sec_level == BT_SECURITY_HIGH)
+				return HCI_AT_NO_BONDING_MITM;
+			else
+				return HCI_AT_NO_BONDING;
+		}
+		/* fall through */
+	default:
 		switch (chan->sec_level) {
 		case BT_SECURITY_HIGH:
 			return HCI_AT_GENERAL_BONDING_MITM;
@@ -703,6 +708,7 @@ static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan)
 		default:
 			return HCI_AT_NO_BONDING;
 		}
+		break;
 	}
 }
 
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 69e42db8a707..bee98ebfae4d 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -100,9 +100,13 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
 	if (err < 0)
 		goto done;
 
-	if (__le16_to_cpu(la.l2_psm) == L2CAP_PSM_SDP ||
-	    __le16_to_cpu(la.l2_psm) == L2CAP_PSM_RFCOMM)
-		chan->sec_level = BT_SECURITY_SDP;
+	switch (chan->chan_type) {
+	case L2CAP_CHAN_CONN_ORIENTED:
+		if (__le16_to_cpu(la.l2_psm) == L2CAP_PSM_SDP ||
+		    __le16_to_cpu(la.l2_psm) == L2CAP_PSM_RFCOMM)
+			chan->sec_level = BT_SECURITY_SDP;
+		break;
+	}
 
 	bacpy(&bt_sk(sk)->src, &la.l2_bdaddr);
 
-- 
cgit 


From 3124b84309a0699c98bdc0ef1fc8cd5e058ad5fa Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 12 Oct 2013 07:19:32 -0700
Subject: Bluetooth: Allow 3D profile to use security mode 4 level 0

The PSM 0x0021 is dedicated to the 3D profile and has permission to
use security mode 4 level 0 for L2CAP connectionless unicast data
transfers.

When establishing a L2CAP connectionless channel on PSM 0x0021, it
will no longer force Secure Simple Pairing.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/l2cap.h |  1 +
 net/bluetooth/l2cap_core.c    | 10 ++++++++++
 net/bluetooth/l2cap_sock.c    |  4 ++++
 3 files changed, 15 insertions(+)

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index f141b5f6e4f1..12523c79eb3b 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -237,6 +237,7 @@ struct l2cap_conn_rsp {
 /* protocol/service multiplexer (PSM) */
 #define L2CAP_PSM_SDP		0x0001
 #define L2CAP_PSM_RFCOMM	0x0003
+#define L2CAP_PSM_3DSP		0x0021
 
 /* channel indentifier */
 #define L2CAP_CID_SIGNALING	0x0001
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index cc51cb860c40..e932ffda5445 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -688,6 +688,16 @@ static inline u8 l2cap_get_auth_type(struct l2cap_chan *chan)
 			return HCI_AT_NO_BONDING;
 		}
 		break;
+	case L2CAP_CHAN_CONN_LESS:
+		if (chan->psm == __constant_cpu_to_le16(L2CAP_PSM_3DSP)) {
+			if (chan->sec_level == BT_SECURITY_LOW)
+				chan->sec_level = BT_SECURITY_SDP;
+		}
+		if (chan->sec_level == BT_SECURITY_HIGH)
+			return HCI_AT_NO_BONDING_MITM;
+		else
+			return HCI_AT_NO_BONDING;
+		break;
 	case L2CAP_CHAN_CONN_ORIENTED:
 		if (chan->psm == __constant_cpu_to_le16(L2CAP_PSM_SDP)) {
 			if (chan->sec_level == BT_SECURITY_LOW)
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index bee98ebfae4d..bd6fe7fd2737 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -101,6 +101,10 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
 		goto done;
 
 	switch (chan->chan_type) {
+	case L2CAP_CHAN_CONN_LESS:
+		if (__le16_to_cpu(la.l2_psm) == L2CAP_PSM_3DSP)
+			chan->sec_level = BT_SECURITY_SDP;
+		break;
 	case L2CAP_CHAN_CONN_ORIENTED:
 		if (__le16_to_cpu(la.l2_psm) == L2CAP_PSM_SDP ||
 		    __le16_to_cpu(la.l2_psm) == L2CAP_PSM_RFCOMM)
-- 
cgit 


From 0bf84c160a4b3b75bb911b79c3972f64dfb0b039 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Sat, 18 May 2013 14:56:57 +0200
Subject: batman-adv: create common header for ICMP packets

the icmp and the icmp_rr packets share the same initial
fields since they use the same code to be processed and
forwarded.

Extract the common fields and put them into a separate
struct so that future ICMP packets can be easily added
without bloating the packet definition.

However, keep the seqno field outside of the newly created
common header because future ICMP types may require a
bigger sequence number space.

This change breaks compatibility due to fields reordering
in the ICMP headers.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/icmp_socket.c | 22 +++++++++++-----------
 net/batman-adv/main.c        |  4 ++--
 net/batman-adv/packet.h      | 38 ++++++++++++++++++++++++++++----------
 net/batman-adv/routing.c     | 40 +++++++++++++++++++++-------------------
 4 files changed, 62 insertions(+), 42 deletions(-)

diff --git a/net/batman-adv/icmp_socket.c b/net/batman-adv/icmp_socket.c
index 5a99bb4b6b82..82ac6472fa6f 100644
--- a/net/batman-adv/icmp_socket.c
+++ b/net/batman-adv/icmp_socket.c
@@ -192,25 +192,25 @@ static ssize_t batadv_socket_write(struct file *file, const char __user *buff,
 		goto free_skb;
 	}
 
-	if (icmp_packet->header.packet_type != BATADV_ICMP) {
+	if (icmp_packet->icmph.header.packet_type != BATADV_ICMP) {
 		batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
 			   "Error - can't send packet from char device: got bogus packet type (expected: BAT_ICMP)\n");
 		len = -EINVAL;
 		goto free_skb;
 	}
 
-	if (icmp_packet->msg_type != BATADV_ECHO_REQUEST) {
+	if (icmp_packet->icmph.msg_type != BATADV_ECHO_REQUEST) {
 		batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
 			   "Error - can't send packet from char device: got bogus message type (expected: ECHO_REQUEST)\n");
 		len = -EINVAL;
 		goto free_skb;
 	}
 
-	icmp_packet->uid = socket_client->index;
+	icmp_packet->icmph.uid = socket_client->index;
 
-	if (icmp_packet->header.version != BATADV_COMPAT_VERSION) {
-		icmp_packet->msg_type = BATADV_PARAMETER_PROBLEM;
-		icmp_packet->header.version = BATADV_COMPAT_VERSION;
+	if (icmp_packet->icmph.header.version != BATADV_COMPAT_VERSION) {
+		icmp_packet->icmph.msg_type = BATADV_PARAMETER_PROBLEM;
+		icmp_packet->icmph.header.version = BATADV_COMPAT_VERSION;
 		batadv_socket_add_packet(socket_client, icmp_packet,
 					 packet_len);
 		goto free_skb;
@@ -219,7 +219,7 @@ static ssize_t batadv_socket_write(struct file *file, const char __user *buff,
 	if (atomic_read(&bat_priv->mesh_state) != BATADV_MESH_ACTIVE)
 		goto dst_unreach;
 
-	orig_node = batadv_orig_hash_find(bat_priv, icmp_packet->dst);
+	orig_node = batadv_orig_hash_find(bat_priv, icmp_packet->icmph.dst);
 	if (!orig_node)
 		goto dst_unreach;
 
@@ -233,7 +233,7 @@ static ssize_t batadv_socket_write(struct file *file, const char __user *buff,
 	if (neigh_node->if_incoming->if_status != BATADV_IF_ACTIVE)
 		goto dst_unreach;
 
-	memcpy(icmp_packet->orig,
+	memcpy(icmp_packet->icmph.orig,
 	       primary_if->net_dev->dev_addr, ETH_ALEN);
 
 	if (packet_len == sizeof(struct batadv_icmp_packet_rr))
@@ -244,7 +244,7 @@ static ssize_t batadv_socket_write(struct file *file, const char __user *buff,
 	goto out;
 
 dst_unreach:
-	icmp_packet->msg_type = BATADV_DESTINATION_UNREACHABLE;
+	icmp_packet->icmph.msg_type = BATADV_DESTINATION_UNREACHABLE;
 	batadv_socket_add_packet(socket_client, icmp_packet, packet_len);
 free_skb:
 	kfree_skb(skb);
@@ -318,7 +318,7 @@ static void batadv_socket_add_packet(struct batadv_socket_client *socket_client,
 	/* while waiting for the lock the socket_client could have been
 	 * deleted
 	 */
-	if (!batadv_socket_client_hash[icmp_packet->uid]) {
+	if (!batadv_socket_client_hash[icmp_packet->icmph.uid]) {
 		spin_unlock_bh(&socket_client->lock);
 		kfree(socket_packet);
 		return;
@@ -347,7 +347,7 @@ void batadv_socket_receive_packet(struct batadv_icmp_packet_rr *icmp_packet,
 {
 	struct batadv_socket_client *hash;
 
-	hash = batadv_socket_client_hash[icmp_packet->uid];
+	hash = batadv_socket_client_hash[icmp_packet->icmph.uid];
 	if (hash)
 		batadv_socket_add_packet(hash, icmp_packet, icmp_len);
 }
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index ca6f1340d70c..519138e32fe6 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -401,8 +401,8 @@ static void batadv_recv_handler_init(void)
 	BUILD_BUG_ON(offsetof(struct batadv_unicast_packet, dest) != 4);
 	BUILD_BUG_ON(offsetof(struct batadv_unicast_tvlv_packet, dst) != 4);
 	BUILD_BUG_ON(offsetof(struct batadv_frag_packet, dest) != 4);
-	BUILD_BUG_ON(offsetof(struct batadv_icmp_packet, dst) != 4);
-	BUILD_BUG_ON(offsetof(struct batadv_icmp_packet_rr, dst) != 4);
+	BUILD_BUG_ON(offsetof(struct batadv_icmp_packet, icmph.dst) != 4);
+	BUILD_BUG_ON(offsetof(struct batadv_icmp_packet_rr, icmph.dst) != 4);
 
 	/* broadcast packet */
 	batadv_rx_handler[BATADV_BCAST] = batadv_recv_bcast_packet;
diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index aa46c2778ad8..65e723ed030b 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -186,29 +186,47 @@ struct batadv_ogm_packet {
 
 #define BATADV_OGM_HLEN sizeof(struct batadv_ogm_packet)
 
-struct batadv_icmp_packet {
+/**
+ * batadv_icmp_header - common ICMP header
+ * @header: common batman header
+ * @msg_type: ICMP packet type
+ * @dst: address of the destination node
+ * @orig: address of the source node
+ * @uid: local ICMP socket identifier
+ */
+struct batadv_icmp_header {
 	struct batadv_header header;
 	uint8_t  msg_type; /* see ICMP message types above */
 	uint8_t  dst[ETH_ALEN];
 	uint8_t  orig[ETH_ALEN];
-	__be16   seqno;
 	uint8_t  uid;
+};
+
+/**
+ * batadv_icmp_packet - ICMP packet
+ * @icmph: common ICMP header
+ * @reserved: not used - useful for alignment
+ * @seqno: ICMP sequence number
+ */
+struct batadv_icmp_packet {
+	struct batadv_icmp_header icmph;
 	uint8_t  reserved;
+	__be16   seqno;
 };
 
 #define BATADV_RR_LEN 16
 
-/* icmp_packet_rr must start with all fields from imcp_packet
- * as this is assumed by code that handles ICMP packets
+/**
+ * batadv_icmp_packet_rr - ICMP RouteRecord packet
+ * @icmph: common ICMP header
+ * @rr_cur: number of entries the rr array
+ * @seqno: ICMP sequence number
+ * @rr: route record array
  */
 struct batadv_icmp_packet_rr {
-	struct batadv_header header;
-	uint8_t  msg_type; /* see ICMP message types above */
-	uint8_t  dst[ETH_ALEN];
-	uint8_t  orig[ETH_ALEN];
-	__be16   seqno;
-	uint8_t  uid;
+	struct batadv_icmp_header icmph;
 	uint8_t  rr_cur;
+	__be16   seqno;
 	uint8_t  rr[BATADV_RR_LEN][ETH_ALEN];
 };
 
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index a080f63b3ef6..3281a504c20a 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -258,7 +258,7 @@ static int batadv_recv_my_icmp_packet(struct batadv_priv *bat_priv,
 	icmp_packet = (struct batadv_icmp_packet_rr *)skb->data;
 
 	/* add data to device queue */
-	if (icmp_packet->msg_type != BATADV_ECHO_REQUEST) {
+	if (icmp_packet->icmph.msg_type != BATADV_ECHO_REQUEST) {
 		batadv_socket_receive_packet(icmp_packet, icmp_len);
 		goto out;
 	}
@@ -269,7 +269,7 @@ static int batadv_recv_my_icmp_packet(struct batadv_priv *bat_priv,
 
 	/* answer echo request (ping) */
 	/* get routing information */
-	orig_node = batadv_orig_hash_find(bat_priv, icmp_packet->orig);
+	orig_node = batadv_orig_hash_find(bat_priv, icmp_packet->icmph.orig);
 	if (!orig_node)
 		goto out;
 
@@ -279,10 +279,11 @@ static int batadv_recv_my_icmp_packet(struct batadv_priv *bat_priv,
 
 	icmp_packet = (struct batadv_icmp_packet_rr *)skb->data;
 
-	memcpy(icmp_packet->dst, icmp_packet->orig, ETH_ALEN);
-	memcpy(icmp_packet->orig, primary_if->net_dev->dev_addr, ETH_ALEN);
-	icmp_packet->msg_type = BATADV_ECHO_REPLY;
-	icmp_packet->header.ttl = BATADV_TTL;
+	memcpy(icmp_packet->icmph.dst, icmp_packet->icmph.orig, ETH_ALEN);
+	memcpy(icmp_packet->icmph.orig, primary_if->net_dev->dev_addr,
+	       ETH_ALEN);
+	icmp_packet->icmph.msg_type = BATADV_ECHO_REPLY;
+	icmp_packet->icmph.header.ttl = BATADV_TTL;
 
 	if (batadv_send_skb_to_orig(skb, orig_node, NULL) != NET_XMIT_DROP)
 		ret = NET_RX_SUCCESS;
@@ -306,9 +307,9 @@ static int batadv_recv_icmp_ttl_exceeded(struct batadv_priv *bat_priv,
 	icmp_packet = (struct batadv_icmp_packet *)skb->data;
 
 	/* send TTL exceeded if packet is an echo request (traceroute) */
-	if (icmp_packet->msg_type != BATADV_ECHO_REQUEST) {
+	if (icmp_packet->icmph.msg_type != BATADV_ECHO_REQUEST) {
 		pr_debug("Warning - can't forward icmp packet from %pM to %pM: ttl exceeded\n",
-			 icmp_packet->orig, icmp_packet->dst);
+			 icmp_packet->icmph.orig, icmp_packet->icmph.dst);
 		goto out;
 	}
 
@@ -317,7 +318,7 @@ static int batadv_recv_icmp_ttl_exceeded(struct batadv_priv *bat_priv,
 		goto out;
 
 	/* get routing information */
-	orig_node = batadv_orig_hash_find(bat_priv, icmp_packet->orig);
+	orig_node = batadv_orig_hash_find(bat_priv, icmp_packet->icmph.orig);
 	if (!orig_node)
 		goto out;
 
@@ -327,10 +328,11 @@ static int batadv_recv_icmp_ttl_exceeded(struct batadv_priv *bat_priv,
 
 	icmp_packet = (struct batadv_icmp_packet *)skb->data;
 
-	memcpy(icmp_packet->dst, icmp_packet->orig, ETH_ALEN);
-	memcpy(icmp_packet->orig, primary_if->net_dev->dev_addr, ETH_ALEN);
-	icmp_packet->msg_type = BATADV_TTL_EXCEEDED;
-	icmp_packet->header.ttl = BATADV_TTL;
+	memcpy(icmp_packet->icmph.dst, icmp_packet->icmph.orig, ETH_ALEN);
+	memcpy(icmp_packet->icmph.orig, primary_if->net_dev->dev_addr,
+	       ETH_ALEN);
+	icmp_packet->icmph.msg_type = BATADV_TTL_EXCEEDED;
+	icmp_packet->icmph.header.ttl = BATADV_TTL;
 
 	if (batadv_send_skb_to_orig(skb, orig_node, NULL) != NET_XMIT_DROP)
 		ret = NET_RX_SUCCESS;
@@ -379,8 +381,8 @@ int batadv_recv_icmp_packet(struct sk_buff *skb,
 	icmp_packet = (struct batadv_icmp_packet_rr *)skb->data;
 
 	/* add record route information if not full */
-	if ((icmp_packet->msg_type == BATADV_ECHO_REPLY ||
-	     icmp_packet->msg_type == BATADV_ECHO_REQUEST) &&
+	if ((icmp_packet->icmph.msg_type == BATADV_ECHO_REPLY ||
+	     icmp_packet->icmph.msg_type == BATADV_ECHO_REQUEST) &&
 	    (hdr_size == sizeof(struct batadv_icmp_packet_rr)) &&
 	    (icmp_packet->rr_cur < BATADV_RR_LEN)) {
 		memcpy(&(icmp_packet->rr[icmp_packet->rr_cur]),
@@ -389,15 +391,15 @@ int batadv_recv_icmp_packet(struct sk_buff *skb,
 	}
 
 	/* packet for me */
-	if (batadv_is_my_mac(bat_priv, icmp_packet->dst))
+	if (batadv_is_my_mac(bat_priv, icmp_packet->icmph.dst))
 		return batadv_recv_my_icmp_packet(bat_priv, skb, hdr_size);
 
 	/* TTL exceeded */
-	if (icmp_packet->header.ttl < 2)
+	if (icmp_packet->icmph.header.ttl < 2)
 		return batadv_recv_icmp_ttl_exceeded(bat_priv, skb);
 
 	/* get routing information */
-	orig_node = batadv_orig_hash_find(bat_priv, icmp_packet->dst);
+	orig_node = batadv_orig_hash_find(bat_priv, icmp_packet->icmph.dst);
 	if (!orig_node)
 		goto out;
 
@@ -408,7 +410,7 @@ int batadv_recv_icmp_packet(struct sk_buff *skb,
 	icmp_packet = (struct batadv_icmp_packet_rr *)skb->data;
 
 	/* decrement ttl */
-	icmp_packet->header.ttl--;
+	icmp_packet->icmph.header.ttl--;
 
 	/* route it */
 	if (batadv_send_skb_to_orig(skb, orig_node, recv_if) != NET_XMIT_DROP)
-- 
cgit 


From 411d6ed93a5d0601980d3e5ce75de07c98e3a7de Mon Sep 17 00:00:00 2001
From: Marek Lindner <lindner_marek@yahoo.de>
Date: Wed, 8 May 2013 13:31:59 +0800
Subject: batman-adv: consider network coding overhead when calculating
 required mtu

The module prints a warning when the MTU on the hard interface is too
small to transfer payload traffic without fragmentation. The required
MTU is calculated based on the encapsulation header size. If network
coding is compild into the module its header size is taken into
account as well.

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/hard-interface.c | 19 ++++++++++---------
 net/batman-adv/main.c           | 25 +++++++++++++++++++++++++
 net/batman-adv/main.h           |  1 +
 net/batman-adv/soft-interface.c |  2 +-
 net/batman-adv/types.h          |  7 -------
 5 files changed, 37 insertions(+), 17 deletions(-)

diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index 004017c523fa..d564af295db4 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -269,9 +269,10 @@ int batadv_hardif_min_mtu(struct net_device *soft_iface)
 	const struct batadv_priv *bat_priv = netdev_priv(soft_iface);
 	const struct batadv_hard_iface *hard_iface;
 	/* allow big frames if all devices are capable to do so
-	 * (have MTU > 1500 + BAT_HEADER_LEN)
+	 * (have MTU > 1500 + batadv_max_header_len())
 	 */
 	int min_mtu = ETH_DATA_LEN;
+	int max_header_len = batadv_max_header_len();
 
 	if (atomic_read(&bat_priv->fragmentation))
 		goto out;
@@ -285,8 +286,7 @@ int batadv_hardif_min_mtu(struct net_device *soft_iface)
 		if (hard_iface->soft_iface != soft_iface)
 			continue;
 
-		min_mtu = min_t(int,
-				hard_iface->net_dev->mtu - BATADV_HEADER_LEN,
+		min_mtu = min_t(int, hard_iface->net_dev->mtu - max_header_len,
 				min_mtu);
 	}
 	rcu_read_unlock();
@@ -380,6 +380,7 @@ int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,
 	struct batadv_priv *bat_priv;
 	struct net_device *soft_iface, *master;
 	__be16 ethertype = htons(ETH_P_BATMAN);
+	int max_header_len = batadv_max_header_len();
 	int ret;
 
 	if (hard_iface->if_status != BATADV_IF_NOT_IN_USE)
@@ -448,18 +449,18 @@ int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,
 		    hard_iface->net_dev->name);
 
 	if (atomic_read(&bat_priv->fragmentation) &&
-	    hard_iface->net_dev->mtu < ETH_DATA_LEN + BATADV_HEADER_LEN)
+	    hard_iface->net_dev->mtu < ETH_DATA_LEN + max_header_len)
 		batadv_info(hard_iface->soft_iface,
-			    "The MTU of interface %s is too small (%i) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to %zi would solve the problem.\n",
+			    "The MTU of interface %s is too small (%i) to handle the transport of batman-adv packets. Packets going over this interface will be fragmented on layer2 which could impact the performance. Setting the MTU to %i would solve the problem.\n",
 			    hard_iface->net_dev->name, hard_iface->net_dev->mtu,
-			    ETH_DATA_LEN + BATADV_HEADER_LEN);
+			    ETH_DATA_LEN + max_header_len);
 
 	if (!atomic_read(&bat_priv->fragmentation) &&
-	    hard_iface->net_dev->mtu < ETH_DATA_LEN + BATADV_HEADER_LEN)
+	    hard_iface->net_dev->mtu < ETH_DATA_LEN + max_header_len)
 		batadv_info(hard_iface->soft_iface,
-			    "The MTU of interface %s is too small (%i) to handle the transport of batman-adv packets. If you experience problems getting traffic through try increasing the MTU to %zi.\n",
+			    "The MTU of interface %s is too small (%i) to handle the transport of batman-adv packets. If you experience problems getting traffic through try increasing the MTU to %i.\n",
 			    hard_iface->net_dev->name, hard_iface->net_dev->mtu,
-			    ETH_DATA_LEN + BATADV_HEADER_LEN);
+			    ETH_DATA_LEN + max_header_len);
 
 	if (batadv_hardif_is_iface_up(hard_iface))
 		batadv_hardif_activate_interface(hard_iface);
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index 519138e32fe6..7f3a5c426615 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -255,6 +255,31 @@ out:
 	return primary_if;
 }
 
+/**
+ * batadv_max_header_len - calculate maximum encapsulation overhead for a
+ *  payload packet
+ *
+ * Return the maximum encapsulation overhead in bytes.
+ */
+int batadv_max_header_len(void)
+{
+	int header_len = 0;
+
+	header_len = max_t(int, header_len,
+			   sizeof(struct batadv_unicast_packet));
+	header_len = max_t(int, header_len,
+			   sizeof(struct batadv_unicast_4addr_packet));
+	header_len = max_t(int, header_len,
+			   sizeof(struct batadv_bcast_packet));
+
+#ifdef CONFIG_BATMAN_ADV_NC
+	header_len = max_t(int, header_len,
+			   sizeof(struct batadv_coded_packet));
+#endif
+
+	return header_len;
+}
+
 /**
  * batadv_skb_set_priority - sets skb priority according to packet content
  * @skb: the packet to be sent
diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index 6a74a4225326..54c13d51edbe 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -191,6 +191,7 @@ void batadv_mesh_free(struct net_device *soft_iface);
 int batadv_is_my_mac(struct batadv_priv *bat_priv, const uint8_t *addr);
 struct batadv_hard_iface *
 batadv_seq_print_text_primary_if_get(struct seq_file *seq);
+int batadv_max_header_len(void);
 void batadv_skb_set_priority(struct sk_buff *skb, int offset);
 int batadv_batman_skb_recv(struct sk_buff *skb, struct net_device *dev,
 			   struct packet_type *ptype,
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 87e7e4ed216d..15c7237f427b 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -626,7 +626,7 @@ static void batadv_softif_init_early(struct net_device *dev)
 	 */
 	dev->mtu = ETH_DATA_LEN;
 	/* reserve more space in the skbuff for our header */
-	dev->hard_header_len = BATADV_HEADER_LEN;
+	dev->hard_header_len = batadv_max_header_len();
 
 	/* generate random address */
 	eth_hw_addr_random(dev);
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index d517d5dde6ad..5cbb0d09a9b5 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -24,13 +24,6 @@
 #include "bitarray.h"
 #include <linux/kernel.h>
 
-/**
- * Maximum overhead for the encapsulation for a payload packet
- */
-#define BATADV_HEADER_LEN \
-	(ETH_HLEN + max(sizeof(struct batadv_unicast_packet), \
-			sizeof(struct batadv_bcast_packet)))
-
 #ifdef CONFIG_BATMAN_ADV_DAT
 
 /* batadv_dat_addr_t is the type used for all DHT addresses. If it is changed,
-- 
cgit 


From 56a5ca8409072d9d982d0904f60a4a6096d2dec0 Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon@open-mesh.com>
Date: Tue, 28 May 2013 11:49:47 +0200
Subject: batman-adv: remove useless find_router look up

This is not used anymore with the new fragmentation, and it might
actually mess up the bonding code because find_router() assumes it
is only called once per packet.

Signed-off-by: Simon Wunderlich <simon@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/send.c | 29 ++++++++---------------------
 1 file changed, 8 insertions(+), 21 deletions(-)

diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index 4bbcf51db6a7..82588e425641 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -250,30 +250,19 @@ int batadv_send_skb_generic_unicast(struct batadv_priv *bat_priv,
 	struct ethhdr *ethhdr = (struct ethhdr *)skb->data;
 	struct batadv_unicast_packet *unicast_packet;
 	struct batadv_orig_node *orig_node;
-	struct batadv_neigh_node *neigh_node;
 	int ret = NET_RX_DROP;
 
 	/* get routing information */
-	if (is_multicast_ether_addr(ethhdr->h_dest)) {
+	if (is_multicast_ether_addr(ethhdr->h_dest))
 		orig_node = batadv_gw_get_selected_orig(bat_priv);
-		if (orig_node)
-			goto find_router;
-	}
-
-	/* check for tt host - increases orig_node refcount.
-	 * returns NULL in case of AP isolation
-	 */
-	orig_node = batadv_transtable_search(bat_priv, ethhdr->h_source,
-					     ethhdr->h_dest);
-
-find_router:
-	/* find_router():
-	 *  - if orig_node is NULL it returns NULL
-	 *  - increases neigh_nodes refcount if found.
-	 */
-	neigh_node = batadv_find_router(bat_priv, orig_node, NULL);
+	else
+		/* check for tt host - increases orig_node refcount.
+		 * returns NULL in case of AP isolation
+		 */
+		orig_node = batadv_transtable_search(bat_priv, ethhdr->h_source,
+						     ethhdr->h_dest);
 
-	if (!neigh_node)
+	if (!orig_node)
 		goto out;
 
 	switch (packet_type) {
@@ -305,8 +294,6 @@ find_router:
 		ret = 0;
 
 out:
-	if (neigh_node)
-		batadv_neigh_node_free_ref(neigh_node);
 	if (orig_node)
 		batadv_orig_node_free_ref(orig_node);
 	if (ret == NET_RX_DROP)
-- 
cgit 


From 298e6e685bbdacc781b64a94e0d215f78db5dc13 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 28 May 2013 13:14:27 +0200
Subject: batman-adv: implement batadv_tt_entries

Implement batadv_tt_entries() to get the number of entries
fitting in a given amount of bytes. This computation is done
several times in the code and therefore it is useful to have
an helper function.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/translation-table.c | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 34fa6cc381c9..58636a77de79 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -232,6 +232,17 @@ static int batadv_tt_len(int changes_num)
 	return changes_num * sizeof(struct batadv_tvlv_tt_change);
 }
 
+/**
+ * batadv_tt_entries - compute the number of entries fitting in tt_len bytes
+ * @tt_len: available space
+ *
+ * Returns the number of entries.
+ */
+static uint16_t batadv_tt_entries(uint16_t tt_len)
+{
+	return tt_len / batadv_tt_len(1);
+}
+
 static int batadv_tt_local_init(struct batadv_priv *bat_priv)
 {
 	if (bat_priv->tt.local_hash)
@@ -406,7 +417,7 @@ static void batadv_tt_tvlv_container_update(struct batadv_priv *bat_priv)
 	if (tt_diff_len == 0)
 		goto container_register;
 
-	tt_diff_entries_num = tt_diff_len / batadv_tt_len(1);
+	tt_diff_entries_num = batadv_tt_entries(tt_diff_len);
 
 	spin_lock_bh(&bat_priv->tt.changes_list_lock);
 	atomic_set(&bat_priv->tt.local_changes, 0);
@@ -1616,7 +1627,7 @@ batadv_tt_tvlv_generate(struct batadv_priv *bat_priv,
 		tt_len -= tt_len % sizeof(struct batadv_tvlv_tt_change);
 	}
 
-	tt_tot = tt_len / sizeof(struct batadv_tvlv_tt_change);
+	tt_tot = batadv_tt_entries(tt_len);
 
 	tvlv_tt_data = kzalloc(sizeof(*tvlv_tt_data) + tt_len,
 			       GFP_ATOMIC);
@@ -2567,7 +2578,7 @@ static void batadv_tt_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv,
 	tt_data = (struct batadv_tvlv_tt_data *)tvlv_value;
 	tvlv_value_len -= sizeof(*tt_data);
 
-	num_entries = tvlv_value_len / batadv_tt_len(1);
+	num_entries = batadv_tt_entries(tvlv_value_len);
 
 	batadv_tt_update_orig(bat_priv, orig,
 			      (unsigned char *)(tt_data + 1),
@@ -2602,7 +2613,7 @@ static int batadv_tt_tvlv_unicast_handler_v1(struct batadv_priv *bat_priv,
 	tt_data = (struct batadv_tvlv_tt_data *)tvlv_value;
 	tvlv_value_len -= sizeof(*tt_data);
 
-	num_entries = tvlv_value_len / batadv_tt_len(1);
+	num_entries = batadv_tt_entries(tvlv_value_len);
 
 	switch (tt_data->flags & BATADV_TT_DATA_TYPE_MASK) {
 	case BATADV_TT_REQUEST:
-- 
cgit 


From e8cf234a4e7e278cb9721ac6071e0f9a3c95b978 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 28 May 2013 13:14:28 +0200
Subject: batman-adv: make batadv_tt_save_orig_buffer() generic

This is a simple batadv_tt_save_orig_buffer() refactoring
aiming to make it more generic and avoid useless casts.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/translation-table.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 58636a77de79..b521afb186d4 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -1496,11 +1496,9 @@ static void batadv_tt_req_list_free(struct batadv_priv *bat_priv)
 
 static void batadv_tt_save_orig_buffer(struct batadv_priv *bat_priv,
 				       struct batadv_orig_node *orig_node,
-				       const unsigned char *tt_buff,
-				       uint16_t tt_num_changes)
+				       const void *tt_buff,
+				       uint16_t tt_buff_len)
 {
-	uint16_t tt_buff_len = batadv_tt_len(tt_num_changes);
-
 	/* Replace the old buffer only if I received something in the
 	 * last OGM (the OGM could carry no changes)
 	 */
@@ -2037,8 +2035,8 @@ static void batadv_tt_update_changes(struct batadv_priv *bat_priv,
 	_batadv_tt_update_changes(bat_priv, orig_node, tt_change,
 				  tt_num_changes, ttvn);
 
-	batadv_tt_save_orig_buffer(bat_priv, orig_node,
-				   (unsigned char *)tt_change, tt_num_changes);
+	batadv_tt_save_orig_buffer(bat_priv, orig_node, tt_change,
+				   batadv_tt_len(tt_num_changes));
 	atomic_set(&orig_node->last_ttvn, ttvn);
 }
 
-- 
cgit 


From a4deee1ad42d93746562fe7de2149729017e3fd1 Mon Sep 17 00:00:00 2001
From: Linus Lüssing <linus.luessing@web.de>
Date: Sun, 26 May 2013 17:56:07 +0200
Subject: batman-adv: Add dummy soft-interface rx mode handler
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

We do not actually need to set any rx filters for the virtual batman
soft interface. However a dummy handler enables a user to set static
multicast listeners for instance.

Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/soft-interface.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 15c7237f427b..e8a2bd699d40 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -137,6 +137,18 @@ static int batadv_interface_change_mtu(struct net_device *dev, int new_mtu)
 	return 0;
 }
 
+/**
+ * batadv_interface_set_rx_mode - set the rx mode of a device
+ * @dev: registered network device to modify
+ *
+ * We do not actually need to set any rx filters for the virtual batman
+ * soft interface. However a dummy handler enables a user to set static
+ * multicast listeners for instance.
+ */
+static void batadv_interface_set_rx_mode(struct net_device *dev)
+{
+}
+
 static int batadv_interface_tx(struct sk_buff *skb,
 			       struct net_device *soft_iface)
 {
@@ -583,6 +595,7 @@ static const struct net_device_ops batadv_netdev_ops = {
 	.ndo_get_stats = batadv_interface_stats,
 	.ndo_set_mac_address = batadv_interface_set_mac_addr,
 	.ndo_change_mtu = batadv_interface_change_mtu,
+	.ndo_set_rx_mode = batadv_interface_set_rx_mode,
 	.ndo_start_xmit = batadv_interface_tx,
 	.ndo_validate_addr = eth_validate_addr,
 	.ndo_add_slave = batadv_softif_slave_add,
-- 
cgit 


From d40bffbc4e9afce9c0be6ea399b4103f72e50ec2 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 12 Oct 2013 08:18:18 -0700
Subject: Bluetooth: The L2CAP fixed channel connectionless data is supported

The implementation actually supports the L2CAP connectionless data
channel. So set it as supported in the fixed channels bitmask.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/l2cap.h | 1 +
 net/bluetooth/l2cap_core.c    | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 12523c79eb3b..56f540e7a8fc 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -131,6 +131,7 @@ struct l2cap_conninfo {
 
 /* L2CAP fixed channels */
 #define L2CAP_FC_L2CAP		0x02
+#define L2CAP_FC_CONNLESS	0x04
 #define L2CAP_FC_A2MP		0x08
 
 /* L2CAP Control Field bit masks */
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index e932ffda5445..8b5437c44c7b 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -44,7 +44,7 @@
 bool disable_ertm;
 
 static u32 l2cap_feat_mask = L2CAP_FEAT_FIXED_CHAN;
-static u8 l2cap_fixed_chan[8] = { L2CAP_FC_L2CAP, };
+static u8 l2cap_fixed_chan[8] = { L2CAP_FC_L2CAP | L2CAP_FC_CONNLESS, };
 
 static LIST_HEAD(chan_list);
 static DEFINE_RWLOCK(chan_list_lock);
-- 
cgit 


From 547d103280690b8febd2354320e164ae508d912e Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 12 Oct 2013 08:18:19 -0700
Subject: Bluetooth: Unicast connectionless data reception is supported

The unicast connectionless data reception feature is actually support
and has been supported all along. Mark it as supported in the L2CAP
features bitmask.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/l2cap_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 8b5437c44c7b..13bb9da2c93a 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -43,7 +43,7 @@
 
 bool disable_ertm;
 
-static u32 l2cap_feat_mask = L2CAP_FEAT_FIXED_CHAN;
+static u32 l2cap_feat_mask = L2CAP_FEAT_FIXED_CHAN | L2CAP_FEAT_UCD;
 static u8 l2cap_fixed_chan[8] = { L2CAP_FC_L2CAP | L2CAP_FC_CONNLESS, };
 
 static LIST_HEAD(chan_list);
-- 
cgit 


From 62e947cb0cd27c392aabe732c64f5023e272cf0e Mon Sep 17 00:00:00 2001
From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Thu, 10 Oct 2013 15:50:33 +0530
Subject: sched: Remove bogus parameter in structured comment

The balance parameter was removed by 23f0d20 ("sched: Factor out
code to should_we_balance()", 2013-08-06).

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1381400433-2030-1-git-send-email-artagnon@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 803e343d7c89..82746796578d 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5586,7 +5586,6 @@ static inline enum fbq_type fbq_classify_rq(struct rq *rq)
 /**
  * update_sd_lb_stats - Update sched_domain's statistics for load balancing.
  * @env: The load balancing environment.
- * @balance: Should we balance.
  * @sds: variable to hold the statistics for this sched_domain.
  */
 static inline void update_sd_lb_stats(struct lb_env *env, struct sd_lb_stats *sds)
-- 
cgit 


From 1158fca401e09665c440a9fe4fd4f131ee85c13b Mon Sep 17 00:00:00 2001
From: Jonathan Austin <jonathan.austin@arm.com>
Date: Thu, 26 Sep 2013 16:49:27 +0100
Subject: KVM: ARM: Fix calculation of virtual CPU ID

KVM does not have a notion of multiple clusters for CPUs, just a linear
array of CPUs. When using a system with cores in more than one cluster, the
current method for calculating the virtual MPIDR will leak the (physical)
cluster information into the virtual MPIDR. One effect of this is that
Linux under KVM fails to boot multiple CPUs that aren't in the 0th cluster.

This patch does away with exposing the real MPIDR fields in favour of simply
using the virtual CPU number (but preserving the U bit, as before).

Signed-off-by: Jonathan Austin <jonathan.austin@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm/kvm/coproc_a15.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/arch/arm/kvm/coproc_a15.c b/arch/arm/kvm/coproc_a15.c
index cf93472b9dd6..bbd4b888dbf3 100644
--- a/arch/arm/kvm/coproc_a15.c
+++ b/arch/arm/kvm/coproc_a15.c
@@ -27,14 +27,11 @@
 static void reset_mpidr(struct kvm_vcpu *vcpu, const struct coproc_reg *r)
 {
 	/*
-	 * Compute guest MPIDR:
-	 * (Even if we present only one VCPU to the guest on an SMP
-	 * host we don't set the U bit in the MPIDR, or vice versa, as
-	 * revealing the underlying hardware properties is likely to
-	 * be the best choice).
+	 * Compute guest MPIDR. No need to mess around with different clusters
+	 * but we read the 'U' bit from the underlying hardware directly.
 	 */
-	vcpu->arch.cp15[c0_MPIDR] = (read_cpuid_mpidr() & ~MPIDR_LEVEL_MASK)
-		| (vcpu->vcpu_id & MPIDR_LEVEL_MASK);
+	vcpu->arch.cp15[c0_MPIDR] = (read_cpuid_mpidr() & MPIDR_SMP_BITMASK)
+					| vcpu->vcpu_id;
 }
 
 #include "coproc.h"
-- 
cgit 


From 5e497046f005528464f9600a4ee04f49df713596 Mon Sep 17 00:00:00 2001
From: Jonathan Austin <jonathan.austin@arm.com>
Date: Thu, 26 Sep 2013 16:49:26 +0100
Subject: KVM: ARM: fix the size of TTBCR_{T0SZ,T1SZ} masks

The T{0,1}SZ fields of TTBCR are 3 bits wide when using the long descriptor
format. Likewise, the T0SZ field of the HTCR is 3-bits. KVM currently
defines TTBCR_T{0,1}SZ as 3, not 7.

The T0SZ mask is used to calculate the value for the HTCR, both to pick out
TTBCR.T0SZ and mask off the equivalent field in the HTCR during
read-modify-write. The incorrect mask size causes the (UNKNOWN) reset value
of HTCR.T0SZ to leak in to the calculated HTCR value. Linux will hang when
initializing KVM if HTCR's reset value has bit 2 set (sometimes the case on
A7/TC2)

Fixing T0SZ allows A7 cores to boot and T1SZ is also fixed for completeness.

Signed-off-by: Jonathan Austin <jonathan.austin@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm/include/asm/kvm_arm.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/include/asm/kvm_arm.h b/arch/arm/include/asm/kvm_arm.h
index 64e96960de29..d556f03bca17 100644
--- a/arch/arm/include/asm/kvm_arm.h
+++ b/arch/arm/include/asm/kvm_arm.h
@@ -95,12 +95,12 @@
 #define TTBCR_IRGN1	(3 << 24)
 #define TTBCR_EPD1	(1 << 23)
 #define TTBCR_A1	(1 << 22)
-#define TTBCR_T1SZ	(3 << 16)
+#define TTBCR_T1SZ	(7 << 16)
 #define TTBCR_SH0	(3 << 12)
 #define TTBCR_ORGN0	(3 << 10)
 #define TTBCR_IRGN0	(3 << 8)
 #define TTBCR_EPD0	(1 << 7)
-#define TTBCR_T0SZ	3
+#define TTBCR_T0SZ	(7 << 0)
 #define HTCR_MASK	(TTBCR_T0SZ | TTBCR_IRGN0 | TTBCR_ORGN0 | TTBCR_SH0)
 
 /* Hyp System Trap Register */
-- 
cgit 


From e8c2d99f8277d68d28a9f99d16289712bc2aee7f Mon Sep 17 00:00:00 2001
From: Jonathan Austin <jonathan.austin@arm.com>
Date: Thu, 26 Sep 2013 16:49:28 +0100
Subject: KVM: ARM: Add support for Cortex-A7

This patch adds support for running Cortex-A7 guests on Cortex-A7 hosts.

As Cortex-A7 is architecturally compatible with A15, this patch is largely just
generalising existing code. Areas where 'implementation defined' behaviour
is identical for A7 and A15 is moved to allow it to be used by both cores.

The check to ensure that coprocessor register tables are sorted correctly is
also moved in to 'common' code to avoid each new cpu doing its own check
(and possibly forgetting to do so!)

Signed-off-by: Jonathan Austin <jonathan.austin@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm/include/asm/kvm_asm.h  |   2 +-
 arch/arm/include/uapi/asm/kvm.h |   3 +-
 arch/arm/kvm/Makefile           |   2 +-
 arch/arm/kvm/coproc.c           | 114 ++++++++++++++++++++++++++++++++++++++++
 arch/arm/kvm/coproc_a15.c       | 114 +---------------------------------------
 arch/arm/kvm/coproc_a7.c        |  54 +++++++++++++++++++
 arch/arm/kvm/guest.c            |   4 +-
 arch/arm/kvm/reset.c            |  15 +++---
 8 files changed, 184 insertions(+), 124 deletions(-)
 create mode 100644 arch/arm/kvm/coproc_a7.c

diff --git a/arch/arm/include/asm/kvm_asm.h b/arch/arm/include/asm/kvm_asm.h
index a2f43ddcc300..661da11f76f4 100644
--- a/arch/arm/include/asm/kvm_asm.h
+++ b/arch/arm/include/asm/kvm_asm.h
@@ -39,7 +39,7 @@
 #define c6_IFAR		17	/* Instruction Fault Address Register */
 #define c7_PAR		18	/* Physical Address Register */
 #define c7_PAR_high	19	/* PAR top 32 bits */
-#define c9_L2CTLR	20	/* Cortex A15 L2 Control Register */
+#define c9_L2CTLR	20	/* Cortex A15/A7 L2 Control Register */
 #define c10_PRRR	21	/* Primary Region Remap Register */
 #define c10_NMRR	22	/* Normal Memory Remap Register */
 #define c12_VBAR	23	/* Vector Base Address Register */
diff --git a/arch/arm/include/uapi/asm/kvm.h b/arch/arm/include/uapi/asm/kvm.h
index c1ee007523d7..c498b60c0505 100644
--- a/arch/arm/include/uapi/asm/kvm.h
+++ b/arch/arm/include/uapi/asm/kvm.h
@@ -63,7 +63,8 @@ struct kvm_regs {
 
 /* Supported Processor Types */
 #define KVM_ARM_TARGET_CORTEX_A15	0
-#define KVM_ARM_NUM_TARGETS		1
+#define KVM_ARM_TARGET_CORTEX_A7	1
+#define KVM_ARM_NUM_TARGETS		2
 
 /* KVM_ARM_SET_DEVICE_ADDR ioctl id encoding */
 #define KVM_ARM_DEVICE_TYPE_SHIFT	0
diff --git a/arch/arm/kvm/Makefile b/arch/arm/kvm/Makefile
index d99bee4950e5..789bca9e64a7 100644
--- a/arch/arm/kvm/Makefile
+++ b/arch/arm/kvm/Makefile
@@ -19,6 +19,6 @@ kvm-arm-y = $(KVM)/kvm_main.o $(KVM)/coalesced_mmio.o
 
 obj-y += kvm-arm.o init.o interrupts.o
 obj-y += arm.o handle_exit.o guest.o mmu.o emulate.o reset.o
-obj-y += coproc.o coproc_a15.o mmio.o psci.o perf.o
+obj-y += coproc.o coproc_a15.o coproc_a7.o mmio.o psci.o perf.o
 obj-$(CONFIG_KVM_ARM_VGIC) += $(KVM)/arm/vgic.o
 obj-$(CONFIG_KVM_ARM_TIMER) += $(KVM)/arm/arch_timer.o
diff --git a/arch/arm/kvm/coproc.c b/arch/arm/kvm/coproc.c
index db9cf692d4dd..a629f2c1d0f9 100644
--- a/arch/arm/kvm/coproc.c
+++ b/arch/arm/kvm/coproc.c
@@ -71,6 +71,92 @@ int kvm_handle_cp14_access(struct kvm_vcpu *vcpu, struct kvm_run *run)
 	return 1;
 }
 
+static void reset_mpidr(struct kvm_vcpu *vcpu, const struct coproc_reg *r)
+{
+	/*
+	 * Compute guest MPIDR. No need to mess around with different clusters
+	 * but we read the 'U' bit from the underlying hardware directly.
+	 */
+	vcpu->arch.cp15[c0_MPIDR] = (read_cpuid_mpidr() & MPIDR_SMP_BITMASK)
+					| vcpu->vcpu_id;
+}
+
+/* TRM entries A7:4.3.31 A15:4.3.28 - RO WI */
+static bool access_actlr(struct kvm_vcpu *vcpu,
+			 const struct coproc_params *p,
+			 const struct coproc_reg *r)
+{
+	if (p->is_write)
+		return ignore_write(vcpu, p);
+
+	*vcpu_reg(vcpu, p->Rt1) = vcpu->arch.cp15[c1_ACTLR];
+	return true;
+}
+
+/* TRM entries A7:4.3.56, A15:4.3.60 - R/O. */
+static bool access_cbar(struct kvm_vcpu *vcpu,
+			const struct coproc_params *p,
+			const struct coproc_reg *r)
+{
+	if (p->is_write)
+		return write_to_read_only(vcpu, p);
+	return read_zero(vcpu, p);
+}
+
+/* TRM entries A7:4.3.49, A15:4.3.48 - R/O WI */
+static bool access_l2ctlr(struct kvm_vcpu *vcpu,
+			  const struct coproc_params *p,
+			  const struct coproc_reg *r)
+{
+	if (p->is_write)
+		return ignore_write(vcpu, p);
+
+	*vcpu_reg(vcpu, p->Rt1) = vcpu->arch.cp15[c9_L2CTLR];
+	return true;
+}
+
+static void reset_l2ctlr(struct kvm_vcpu *vcpu, const struct coproc_reg *r)
+{
+	u32 l2ctlr, ncores;
+
+	asm volatile("mrc p15, 1, %0, c9, c0, 2\n" : "=r" (l2ctlr));
+	l2ctlr &= ~(3 << 24);
+	ncores = atomic_read(&vcpu->kvm->online_vcpus) - 1;
+	l2ctlr |= (ncores & 3) << 24;
+
+	vcpu->arch.cp15[c9_L2CTLR] = l2ctlr;
+}
+
+static void reset_actlr(struct kvm_vcpu *vcpu, const struct coproc_reg *r)
+{
+	u32 actlr;
+
+	/* ACTLR contains SMP bit: make sure you create all cpus first! */
+	asm volatile("mrc p15, 0, %0, c1, c0, 1\n" : "=r" (actlr));
+	/* Make the SMP bit consistent with the guest configuration */
+	if (atomic_read(&vcpu->kvm->online_vcpus) > 1)
+		actlr |= 1U << 6;
+	else
+		actlr &= ~(1U << 6);
+
+	vcpu->arch.cp15[c1_ACTLR] = actlr;
+}
+
+/*
+ * TRM entries: A7:4.3.50, A15:4.3.49
+ * R/O WI (even if NSACR.NS_L2ERR, a write of 1 is ignored).
+ */
+static bool access_l2ectlr(struct kvm_vcpu *vcpu,
+			   const struct coproc_params *p,
+			   const struct coproc_reg *r)
+{
+	if (p->is_write)
+		return ignore_write(vcpu, p);
+
+	*vcpu_reg(vcpu, p->Rt1) = 0;
+	return true;
+}
+
 /* See note at ARM ARM B1.14.4 */
 static bool access_dcsw(struct kvm_vcpu *vcpu,
 			const struct coproc_params *p,
@@ -153,10 +239,22 @@ static bool pm_fake(struct kvm_vcpu *vcpu,
  *            registers preceding 32-bit ones.
  */
 static const struct coproc_reg cp15_regs[] = {
+	/* MPIDR: we use VMPIDR for guest access. */
+	{ CRn( 0), CRm( 0), Op1( 0), Op2( 5), is32,
+			NULL, reset_mpidr, c0_MPIDR },
+
 	/* CSSELR: swapped by interrupt.S. */
 	{ CRn( 0), CRm( 0), Op1( 2), Op2( 0), is32,
 			NULL, reset_unknown, c0_CSSELR },
 
+	/* ACTLR: trapped by HCR.TAC bit. */
+	{ CRn( 1), CRm( 0), Op1( 0), Op2( 1), is32,
+			access_actlr, reset_actlr, c1_ACTLR },
+
+	/* CPACR: swapped by interrupt.S. */
+	{ CRn( 1), CRm( 0), Op1( 0), Op2( 2), is32,
+			NULL, reset_val, c1_CPACR, 0x00000000 },
+
 	/* TTBR0/TTBR1: swapped by interrupt.S. */
 	{ CRm64( 2), Op1( 0), is64, NULL, reset_unknown64, c2_TTBR0 },
 	{ CRm64( 2), Op1( 1), is64, NULL, reset_unknown64, c2_TTBR1 },
@@ -194,6 +292,13 @@ static const struct coproc_reg cp15_regs[] = {
 	{ CRn( 7), CRm( 6), Op1( 0), Op2( 2), is32, access_dcsw},
 	{ CRn( 7), CRm(10), Op1( 0), Op2( 2), is32, access_dcsw},
 	{ CRn( 7), CRm(14), Op1( 0), Op2( 2), is32, access_dcsw},
+	/*
+	 * L2CTLR access (guest wants to know #CPUs).
+	 */
+	{ CRn( 9), CRm( 0), Op1( 1), Op2( 2), is32,
+			access_l2ctlr, reset_l2ctlr, c9_L2CTLR },
+	{ CRn( 9), CRm( 0), Op1( 1), Op2( 3), is32, access_l2ectlr},
+
 	/*
 	 * Dummy performance monitor implementation.
 	 */
@@ -234,6 +339,9 @@ static const struct coproc_reg cp15_regs[] = {
 	/* CNTKCTL: swapped by interrupt.S. */
 	{ CRn(14), CRm( 1), Op1( 0), Op2( 0), is32,
 			NULL, reset_val, c14_CNTKCTL, 0x00000000 },
+
+	/* The Configuration Base Address Register. */
+	{ CRn(15), CRm( 0), Op1( 4), Op2( 0), is32, access_cbar},
 };
 
 /* Target specific emulation tables */
@@ -241,6 +349,12 @@ static struct kvm_coproc_target_table *target_tables[KVM_ARM_NUM_TARGETS];
 
 void kvm_register_target_coproc_table(struct kvm_coproc_target_table *table)
 {
+	unsigned int i;
+
+	for (i = 1; i < table->num; i++)
+		BUG_ON(cmp_reg(&table->table[i-1],
+			       &table->table[i]) >= 0);
+
 	target_tables[table->target] = table;
 }
 
diff --git a/arch/arm/kvm/coproc_a15.c b/arch/arm/kvm/coproc_a15.c
index bbd4b888dbf3..bb0cac1410cc 100644
--- a/arch/arm/kvm/coproc_a15.c
+++ b/arch/arm/kvm/coproc_a15.c
@@ -17,98 +17,12 @@
  * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  */
 #include <linux/kvm_host.h>
-#include <asm/cputype.h>
-#include <asm/kvm_arm.h>
-#include <asm/kvm_host.h>
-#include <asm/kvm_emulate.h>
 #include <asm/kvm_coproc.h>
+#include <asm/kvm_emulate.h>
 #include <linux/init.h>
 
-static void reset_mpidr(struct kvm_vcpu *vcpu, const struct coproc_reg *r)
-{
-	/*
-	 * Compute guest MPIDR. No need to mess around with different clusters
-	 * but we read the 'U' bit from the underlying hardware directly.
-	 */
-	vcpu->arch.cp15[c0_MPIDR] = (read_cpuid_mpidr() & MPIDR_SMP_BITMASK)
-					| vcpu->vcpu_id;
-}
-
 #include "coproc.h"
 
-/* A15 TRM 4.3.28: RO WI */
-static bool access_actlr(struct kvm_vcpu *vcpu,
-			 const struct coproc_params *p,
-			 const struct coproc_reg *r)
-{
-	if (p->is_write)
-		return ignore_write(vcpu, p);
-
-	*vcpu_reg(vcpu, p->Rt1) = vcpu->arch.cp15[c1_ACTLR];
-	return true;
-}
-
-/* A15 TRM 4.3.60: R/O. */
-static bool access_cbar(struct kvm_vcpu *vcpu,
-			const struct coproc_params *p,
-			const struct coproc_reg *r)
-{
-	if (p->is_write)
-		return write_to_read_only(vcpu, p);
-	return read_zero(vcpu, p);
-}
-
-/* A15 TRM 4.3.48: R/O WI. */
-static bool access_l2ctlr(struct kvm_vcpu *vcpu,
-			  const struct coproc_params *p,
-			  const struct coproc_reg *r)
-{
-	if (p->is_write)
-		return ignore_write(vcpu, p);
-
-	*vcpu_reg(vcpu, p->Rt1) = vcpu->arch.cp15[c9_L2CTLR];
-	return true;
-}
-
-static void reset_l2ctlr(struct kvm_vcpu *vcpu, const struct coproc_reg *r)
-{
-	u32 l2ctlr, ncores;
-
-	asm volatile("mrc p15, 1, %0, c9, c0, 2\n" : "=r" (l2ctlr));
-	l2ctlr &= ~(3 << 24);
-	ncores = atomic_read(&vcpu->kvm->online_vcpus) - 1;
-	l2ctlr |= (ncores & 3) << 24;
-
-	vcpu->arch.cp15[c9_L2CTLR] = l2ctlr;
-}
-
-static void reset_actlr(struct kvm_vcpu *vcpu, const struct coproc_reg *r)
-{
-	u32 actlr;
-
-	/* ACTLR contains SMP bit: make sure you create all cpus first! */
-	asm volatile("mrc p15, 0, %0, c1, c0, 1\n" : "=r" (actlr));
-	/* Make the SMP bit consistent with the guest configuration */
-	if (atomic_read(&vcpu->kvm->online_vcpus) > 1)
-		actlr |= 1U << 6;
-	else
-		actlr &= ~(1U << 6);
-
-	vcpu->arch.cp15[c1_ACTLR] = actlr;
-}
-
-/* A15 TRM 4.3.49: R/O WI (even if NSACR.NS_L2ERR, a write of 1 is ignored). */
-static bool access_l2ectlr(struct kvm_vcpu *vcpu,
-			   const struct coproc_params *p,
-			   const struct coproc_reg *r)
-{
-	if (p->is_write)
-		return ignore_write(vcpu, p);
-
-	*vcpu_reg(vcpu, p->Rt1) = 0;
-	return true;
-}
-
 /*
  * A15-specific CP15 registers.
  * CRn denotes the primary register number, but is copied to the CRm in the
@@ -118,29 +32,9 @@ static bool access_l2ectlr(struct kvm_vcpu *vcpu,
  *            registers preceding 32-bit ones.
  */
 static const struct coproc_reg a15_regs[] = {
-	/* MPIDR: we use VMPIDR for guest access. */
-	{ CRn( 0), CRm( 0), Op1( 0), Op2( 5), is32,
-			NULL, reset_mpidr, c0_MPIDR },
-
 	/* SCTLR: swapped by interrupt.S. */
 	{ CRn( 1), CRm( 0), Op1( 0), Op2( 0), is32,
 			NULL, reset_val, c1_SCTLR, 0x00C50078 },
-	/* ACTLR: trapped by HCR.TAC bit. */
-	{ CRn( 1), CRm( 0), Op1( 0), Op2( 1), is32,
-			access_actlr, reset_actlr, c1_ACTLR },
-	/* CPACR: swapped by interrupt.S. */
-	{ CRn( 1), CRm( 0), Op1( 0), Op2( 2), is32,
-			NULL, reset_val, c1_CPACR, 0x00000000 },
-
-	/*
-	 * L2CTLR access (guest wants to know #CPUs).
-	 */
-	{ CRn( 9), CRm( 0), Op1( 1), Op2( 2), is32,
-			access_l2ctlr, reset_l2ctlr, c9_L2CTLR },
-	{ CRn( 9), CRm( 0), Op1( 1), Op2( 3), is32, access_l2ectlr},
-
-	/* The Configuration Base Address Register. */
-	{ CRn(15), CRm( 0), Op1( 4), Op2( 0), is32, access_cbar},
 };
 
 static struct kvm_coproc_target_table a15_target_table = {
@@ -151,12 +45,6 @@ static struct kvm_coproc_target_table a15_target_table = {
 
 static int __init coproc_a15_init(void)
 {
-	unsigned int i;
-
-	for (i = 1; i < ARRAY_SIZE(a15_regs); i++)
-		BUG_ON(cmp_reg(&a15_regs[i-1],
-			       &a15_regs[i]) >= 0);
-
 	kvm_register_target_coproc_table(&a15_target_table);
 	return 0;
 }
diff --git a/arch/arm/kvm/coproc_a7.c b/arch/arm/kvm/coproc_a7.c
new file mode 100644
index 000000000000..1df767331588
--- /dev/null
+++ b/arch/arm/kvm/coproc_a7.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2012 - Virtual Open Systems and Columbia University
+ * Copyright (C) 2013 - ARM Ltd
+ *
+ * Authors: Rusty Russell <rusty@rustcorp.au>
+ *          Christoffer Dall <c.dall@virtualopensystems.com>
+ *          Jonathan Austin <jonathan.austin@arm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+#include <linux/kvm_host.h>
+#include <asm/kvm_coproc.h>
+#include <asm/kvm_emulate.h>
+#include <linux/init.h>
+
+#include "coproc.h"
+
+/*
+ * Cortex-A7 specific CP15 registers.
+ * CRn denotes the primary register number, but is copied to the CRm in the
+ * user space API for 64-bit register access in line with the terminology used
+ * in the ARM ARM.
+ * Important: Must be sorted ascending by CRn, CRM, Op1, Op2 and with 64-bit
+ *            registers preceding 32-bit ones.
+ */
+static const struct coproc_reg a7_regs[] = {
+	/* SCTLR: swapped by interrupt.S. */
+	{ CRn( 1), CRm( 0), Op1( 0), Op2( 0), is32,
+			NULL, reset_val, c1_SCTLR, 0x00C50878 },
+};
+
+static struct kvm_coproc_target_table a7_target_table = {
+	.target = KVM_ARM_TARGET_CORTEX_A7,
+	.table = a7_regs,
+	.num = ARRAY_SIZE(a7_regs),
+};
+
+static int __init coproc_a7_init(void)
+{
+	kvm_register_target_coproc_table(&a7_target_table);
+	return 0;
+}
+late_initcall(coproc_a7_init);
diff --git a/arch/arm/kvm/guest.c b/arch/arm/kvm/guest.c
index ec98209fda71..20f8d97904af 100644
--- a/arch/arm/kvm/guest.c
+++ b/arch/arm/kvm/guest.c
@@ -190,6 +190,8 @@ int __attribute_const__ kvm_target_cpu(void)
 		return -EINVAL;
 
 	switch (part_number) {
+	case ARM_CPU_PART_CORTEX_A7:
+		return KVM_ARM_TARGET_CORTEX_A7;
 	case ARM_CPU_PART_CORTEX_A15:
 		return KVM_ARM_TARGET_CORTEX_A15;
 	default:
@@ -202,7 +204,7 @@ int kvm_vcpu_set_target(struct kvm_vcpu *vcpu,
 {
 	unsigned int i;
 
-	/* We can only do a cortex A15 for now. */
+	/* We can only cope with guest==host and only on A15/A7 (for now). */
 	if (init->target != kvm_target_cpu())
 		return -EINVAL;
 
diff --git a/arch/arm/kvm/reset.c b/arch/arm/kvm/reset.c
index 71e08baee209..d9bbd834f188 100644
--- a/arch/arm/kvm/reset.c
+++ b/arch/arm/kvm/reset.c
@@ -30,16 +30,16 @@
 #include <kvm/arm_arch_timer.h>
 
 /******************************************************************************
- * Cortex-A15 Reset Values
+ * Cortex-A15 and Cortex-A7 Reset Values
  */
 
-static const int a15_max_cpu_idx = 3;
+static const int cortexa_max_cpu_idx = 3;
 
-static struct kvm_regs a15_regs_reset = {
+static struct kvm_regs cortexa_regs_reset = {
 	.usr_regs.ARM_cpsr = SVC_MODE | PSR_A_BIT | PSR_I_BIT | PSR_F_BIT,
 };
 
-static const struct kvm_irq_level a15_vtimer_irq = {
+static const struct kvm_irq_level cortexa_vtimer_irq = {
 	{ .irq = 27 },
 	.level = 1,
 };
@@ -62,12 +62,13 @@ int kvm_reset_vcpu(struct kvm_vcpu *vcpu)
 	const struct kvm_irq_level *cpu_vtimer_irq;
 
 	switch (vcpu->arch.target) {
+	case KVM_ARM_TARGET_CORTEX_A7:
 	case KVM_ARM_TARGET_CORTEX_A15:
-		if (vcpu->vcpu_id > a15_max_cpu_idx)
+		if (vcpu->vcpu_id > cortexa_max_cpu_idx)
 			return -EINVAL;
-		cpu_reset = &a15_regs_reset;
+		cpu_reset = &cortexa_regs_reset;
 		vcpu->arch.midr = read_cpuid_id();
-		cpu_vtimer_irq = &a15_vtimer_irq;
+		cpu_vtimer_irq = &cortexa_vtimer_irq;
 		break;
 	default:
 		return -ENODEV;
-- 
cgit 


From bdc8ead27c71b4d3f3e883b0bf3f279a18a6f590 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 02:23:38 -0700
Subject: Bluetooth: Remove l2cap_conn->dst usage from AMP manager

The l2cap_conn->dst address is just a pointer into the hci_conn->dst
structure. Use hci_conn->dst directly instead.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/a2mp.c | 3 ++-
 net/bluetooth/amp.c  | 5 +++--
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 7e25be3e8a79..60ca52819247 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -537,7 +537,8 @@ static int a2mp_discphyslink_req(struct amp_mgr *mgr, struct sk_buff *skb,
 		goto send_rsp;
 	}
 
-	hcon = hci_conn_hash_lookup_ba(hdev, AMP_LINK, mgr->l2cap_conn->dst);
+	hcon = hci_conn_hash_lookup_ba(hdev, AMP_LINK,
+				       &mgr->l2cap_conn->hcon->dst);
 	if (!hcon) {
 		BT_ERR("No phys link exist");
 		rsp.status = A2MP_STATUS_NO_PHYSICAL_LINK_EXISTS;
diff --git a/net/bluetooth/amp.c b/net/bluetooth/amp.c
index 5497ed3f2e3d..bb39509b3f06 100644
--- a/net/bluetooth/amp.c
+++ b/net/bluetooth/amp.c
@@ -111,7 +111,7 @@ static u8 __next_handle(struct amp_mgr *mgr)
 struct hci_conn *phylink_add(struct hci_dev *hdev, struct amp_mgr *mgr,
 			     u8 remote_id, bool out)
 {
-	bdaddr_t *dst = mgr->l2cap_conn->dst;
+	bdaddr_t *dst = &mgr->l2cap_conn->hcon->dst;
 	struct hci_conn *hcon;
 
 	hcon = hci_conn_add(hdev, AMP_LINK, dst);
@@ -410,7 +410,8 @@ void amp_create_logical_link(struct l2cap_chan *chan)
 	struct hci_cp_create_accept_logical_link cp;
 	struct hci_dev *hdev;
 
-	BT_DBG("chan %p hs_hcon %p dst %pMR", chan, hs_hcon, chan->conn->dst);
+	BT_DBG("chan %p hs_hcon %p dst %pMR", chan, hs_hcon,
+	       &chan->conn->hcon->dst);
 
 	if (!hs_hcon)
 		return;
-- 
cgit 


From ce39fb4e45a4315fcdf75ef25d61281e946ebb07 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 02:23:39 -0700
Subject: Bluetooth: Remove l2cap_conn->src and l2cap_conn->dst usage from SMP

The l2cap_conn->src and l2cap_conn->dst addresses are just a pointer
to hci_conn->hdev->bdaddr and hci_conn->dst structures. Use the data
provided by hci_conn directly. This is done for hci_conn->dst_type
already anyway and with this change it makes it a lot clearer were
the address information comes from.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/smp.c | 39 +++++++++++++++++++++------------------
 1 file changed, 21 insertions(+), 18 deletions(-)

diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 9272094bd429..06a082ea903e 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -266,13 +266,13 @@ static void smp_failure(struct l2cap_conn *conn, u8 reason, u8 send)
 		smp_send_cmd(conn, SMP_CMD_PAIRING_FAIL, sizeof(reason),
 								&reason);
 
-	clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->hcon->flags);
-	mgmt_auth_failed(conn->hcon->hdev, conn->dst, hcon->type,
-			 hcon->dst_type, HCI_ERROR_AUTH_FAILURE);
+	clear_bit(HCI_CONN_ENCRYPT_PEND, &hcon->flags);
+	mgmt_auth_failed(hcon->hdev, &hcon->dst, hcon->type, hcon->dst_type,
+			 HCI_ERROR_AUTH_FAILURE);
 
 	cancel_delayed_work_sync(&conn->security_timer);
 
-	if (test_and_clear_bit(HCI_CONN_LE_SMP_PEND, &conn->hcon->flags))
+	if (test_and_clear_bit(HCI_CONN_LE_SMP_PEND, &hcon->flags))
 		smp_chan_destroy(conn);
 }
 
@@ -355,10 +355,10 @@ static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth,
 	hci_dev_lock(hcon->hdev);
 
 	if (method == REQ_PASSKEY)
-		ret = mgmt_user_passkey_request(hcon->hdev, conn->dst,
+		ret = mgmt_user_passkey_request(hcon->hdev, &hcon->dst,
 						hcon->type, hcon->dst_type);
 	else
-		ret = mgmt_user_confirm_request(hcon->hdev, conn->dst,
+		ret = mgmt_user_confirm_request(hcon->hdev, &hcon->dst,
 						hcon->type, hcon->dst_type,
 						cpu_to_le32(passkey), 0);
 
@@ -388,11 +388,12 @@ static void confirm_work(struct work_struct *work)
 
 	if (conn->hcon->out)
 		ret = smp_c1(tfm, smp->tk, smp->prnd, smp->preq, smp->prsp, 0,
-			     conn->src, conn->hcon->dst_type, conn->dst, res);
+			     &conn->hcon->hdev->bdaddr, conn->hcon->dst_type,
+			     &conn->hcon->dst, res);
 	else
 		ret = smp_c1(tfm, smp->tk, smp->prnd, smp->preq, smp->prsp,
-			     conn->hcon->dst_type, conn->dst, 0, conn->src,
-			     res);
+			     conn->hcon->dst_type, &conn->hcon->dst, 0,
+			     &conn->hcon->hdev->bdaddr, res);
 	if (ret) {
 		reason = SMP_UNSPECIFIED;
 		goto error;
@@ -427,10 +428,12 @@ static void random_work(struct work_struct *work)
 
 	if (hcon->out)
 		ret = smp_c1(tfm, smp->tk, smp->rrnd, smp->preq, smp->prsp, 0,
-			     conn->src, hcon->dst_type, conn->dst, res);
+			     &hcon->hdev->bdaddr, hcon->dst_type, &hcon->dst,
+			     res);
 	else
 		ret = smp_c1(tfm, smp->tk, smp->rrnd, smp->preq, smp->prsp,
-			     hcon->dst_type, conn->dst, 0, conn->src, res);
+			     hcon->dst_type, &hcon->dst, 0, &hcon->hdev->bdaddr,
+			     res);
 	if (ret) {
 		reason = SMP_UNSPECIFIED;
 		goto error;
@@ -480,7 +483,7 @@ static void random_work(struct work_struct *work)
 		memset(stk + smp->enc_key_size, 0,
 				SMP_MAX_ENC_KEY_SIZE - smp->enc_key_size);
 
-		hci_add_ltk(hcon->hdev, conn->dst, hcon->dst_type,
+		hci_add_ltk(hcon->hdev, &hcon->dst, hcon->dst_type,
 			    HCI_SMP_STK_SLAVE, 0, 0, stk, smp->enc_key_size,
 			    ediv, rand);
 	}
@@ -715,7 +718,7 @@ static u8 smp_ltk_encrypt(struct l2cap_conn *conn, u8 sec_level)
 	struct smp_ltk *key;
 	struct hci_conn *hcon = conn->hcon;
 
-	key = hci_find_ltk_by_addr(hcon->hdev, conn->dst, hcon->dst_type);
+	key = hci_find_ltk_by_addr(hcon->hdev, &hcon->dst, hcon->dst_type);
 	if (!key)
 		return 0;
 
@@ -836,9 +839,9 @@ static int smp_cmd_master_ident(struct l2cap_conn *conn, struct sk_buff *skb)
 	skb_pull(skb, sizeof(*rp));
 
 	hci_dev_lock(hdev);
-	authenticated = (conn->hcon->sec_level == BT_SECURITY_HIGH);
-	hci_add_ltk(conn->hcon->hdev, conn->dst, hcon->dst_type,
-		    HCI_SMP_LTK, 1, authenticated, smp->tk, smp->enc_key_size,
+	authenticated = (hcon->sec_level == BT_SECURITY_HIGH);
+	hci_add_ltk(hdev, &hcon->dst, hcon->dst_type, HCI_SMP_LTK, 1,
+		    authenticated, smp->tk, smp->enc_key_size,
 		    rp->ediv, rp->rand);
 	smp_distribute_keys(conn, 1);
 	hci_dev_unlock(hdev);
@@ -986,7 +989,7 @@ int smp_distribute_keys(struct l2cap_conn *conn, __u8 force)
 		smp_send_cmd(conn, SMP_CMD_ENCRYPT_INFO, sizeof(enc), &enc);
 
 		authenticated = hcon->sec_level == BT_SECURITY_HIGH;
-		hci_add_ltk(conn->hcon->hdev, conn->dst, hcon->dst_type,
+		hci_add_ltk(hcon->hdev, &hcon->dst, hcon->dst_type,
 			    HCI_SMP_LTK_SLAVE, 1, authenticated,
 			    enc.ltk, smp->enc_key_size, ediv, ident.rand);
 
@@ -1008,7 +1011,7 @@ int smp_distribute_keys(struct l2cap_conn *conn, __u8 force)
 
 		/* Just public address */
 		memset(&addrinfo, 0, sizeof(addrinfo));
-		bacpy(&addrinfo.bdaddr, conn->src);
+		bacpy(&addrinfo.bdaddr, &conn->hcon->hdev->bdaddr);
 
 		smp_send_cmd(conn, SMP_CMD_IDENT_ADDR_INFO, sizeof(addrinfo),
 								&addrinfo);
-- 
cgit 


From 98e0f7ea4a5b4774805c62be104f19abba6187ac Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 02:23:40 -0700
Subject: Bluetooth: Remove l2cap_conn->src and l2cap_conn->dst usage from
 L2CAP

The l2cap_conn->src and l2cap_conn->dst addresses are just a pointers
to hci_conn structure. Use hci_conn->hdev->bdaddr and hci_conn->dst
directly instead.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/l2cap_core.c | 31 +++++++++++++++++--------------
 1 file changed, 17 insertions(+), 14 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 13bb9da2c93a..41e2efe67f7f 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1381,7 +1381,8 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 
 	/* Check if we have socket listening on cid */
 	pchan = l2cap_global_chan_by_scid(BT_LISTEN, L2CAP_CID_ATT,
-					  conn->src, conn->dst);
+					  &conn->hcon->hdev->bdaddr,
+					  &conn->hcon->dst);
 	if (!pchan)
 		return;
 
@@ -1399,8 +1400,8 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 
 	chan->dcid = L2CAP_CID_ATT;
 
-	bacpy(&bt_sk(chan->sk)->src, conn->src);
-	bacpy(&bt_sk(chan->sk)->dst, conn->dst);
+	bacpy(&bt_sk(chan->sk)->src, &conn->hcon->hdev->bdaddr);
+	bacpy(&bt_sk(chan->sk)->dst, &conn->hcon->dst);
 
 	__l2cap_chan_add(conn, chan);
 
@@ -1665,9 +1666,6 @@ static struct l2cap_conn *l2cap_conn_add(struct hci_conn *hcon)
 		break;
 	}
 
-	conn->src = &hcon->hdev->bdaddr;
-	conn->dst = &hcon->dst;
-
 	conn->feat_mask = 0;
 
 	if (hcon->type == ACL_LINK)
@@ -1861,7 +1859,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 	}
 
 	/* Update source addr of the socket */
-	bacpy(src, conn->src);
+	bacpy(src, &hdev->bdaddr);
 
 	l2cap_chan_unlock(chan);
 	l2cap_chan_add(conn, chan);
@@ -3761,7 +3759,9 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 	BT_DBG("psm 0x%2.2x scid 0x%4.4x", __le16_to_cpu(psm), scid);
 
 	/* Check if we have socket listening on psm */
-	pchan = l2cap_global_chan_by_psm(BT_LISTEN, psm, conn->src, conn->dst);
+	pchan = l2cap_global_chan_by_psm(BT_LISTEN, psm,
+					 &conn->hcon->hdev->bdaddr,
+					 &conn->hcon->dst);
 	if (!pchan) {
 		result = L2CAP_CR_BAD_PSM;
 		goto sendresp;
@@ -3799,8 +3799,8 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 	 */
 	conn->hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
 
-	bacpy(&bt_sk(sk)->src, conn->src);
-	bacpy(&bt_sk(sk)->dst, conn->dst);
+	bacpy(&bt_sk(sk)->src, &conn->hcon->hdev->bdaddr);
+	bacpy(&bt_sk(sk)->dst, &conn->hcon->dst);
 	chan->psm  = psm;
 	chan->dcid = scid;
 	chan->local_amp_id = amp_id;
@@ -4479,7 +4479,8 @@ static int l2cap_create_channel_req(struct l2cap_conn *conn,
 		struct amp_mgr *mgr = conn->hcon->amp_mgr;
 		struct hci_conn *hs_hcon;
 
-		hs_hcon = hci_conn_hash_lookup_ba(hdev, AMP_LINK, conn->dst);
+		hs_hcon = hci_conn_hash_lookup_ba(hdev, AMP_LINK,
+						  &conn->hcon->dst);
 		if (!hs_hcon) {
 			hci_dev_put(hdev);
 			return -EBADSLT;
@@ -4922,7 +4923,7 @@ static inline int l2cap_move_channel_req(struct l2cap_conn *conn,
 	 */
 	if ((__chan_is_moving(chan) ||
 	     chan->move_role != L2CAP_MOVE_ROLE_NONE) &&
-	    bacmp(conn->src, conn->dst) > 0) {
+	    bacmp(&conn->hcon->hdev->bdaddr, &conn->hcon->dst) > 0) {
 		result = L2CAP_MR_COLLISION;
 		goto send_move_response;
 	}
@@ -6437,7 +6438,8 @@ static void l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm,
 	if (hcon->type != ACL_LINK)
 		goto drop;
 
-	chan = l2cap_global_chan_by_psm(0, psm, conn->src, conn->dst);
+	chan = l2cap_global_chan_by_psm(0, psm, &conn->hcon->hdev->bdaddr,
+					&conn->hcon->dst);
 	if (!chan)
 		goto drop;
 
@@ -6466,7 +6468,8 @@ static void l2cap_att_channel(struct l2cap_conn *conn,
 		goto drop;
 
 	chan = l2cap_global_chan_by_scid(BT_CONNECTED, L2CAP_CID_ATT,
-					 conn->src, conn->dst);
+					 &conn->hcon->hdev->bdaddr,
+					 &conn->hcon->dst);
 	if (!chan)
 		goto drop;
 
-- 
cgit 


From a4de24d4370d0e7fbfbc47244ceb203e959b23aa Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 02:23:41 -0700
Subject: Bluetooth: Remove l2cap_conn->src and l2cap_conn->dst pointers

The l2cap_conn->src and l2cap_conn->dst pointers are no longer in use
and so just remove them.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/l2cap.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 56f540e7a8fc..1a929afe4f16 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -559,9 +559,6 @@ struct l2cap_conn {
 	struct hci_conn		*hcon;
 	struct hci_chan		*hchan;
 
-	bdaddr_t		*dst;
-	bdaddr_t		*src;
-
 	unsigned int		mtu;
 
 	__u32			feat_mask;
-- 
cgit 


From 79d95a19a445f5758571b3342064f2c1e40b6c5f Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 03:57:38 -0700
Subject: Bluetooth: Remove pointless bdaddr_to_le() helper function

The bdaddr_to_le() function tries to convert the internal address
type to one that matches the HCI address type for LE. It does not
handle any address types not used by LE and in the end just make
the code a lot harder to read.

So instead of just hiding behind a magic function, just convert
the internal address type where it needs to be converted. And it
turns out that these are only two cases anyway. One when creating
new LE connections and the other when loading the long term keys.
In both cases this makes it more clear on what it going on.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h |  2 --
 net/bluetooth/hci_conn.c         |  5 ++++-
 net/bluetooth/hci_core.c         | 12 ------------
 net/bluetooth/mgmt.c             | 10 +++++++---
 4 files changed, 11 insertions(+), 18 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 690045498420..7889495da843 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1187,8 +1187,6 @@ void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
 							__u8 ltk[16]);
 
-u8 bdaddr_to_le(u8 bdaddr_type);
-
 #define SCO_AIRMODE_MASK       0x0003
 #define SCO_AIRMODE_CVSD       0x0000
 #define SCO_AIRMODE_TRANSP     0x0003
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index c52bfb7e44fd..bb32f48b88f9 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -622,7 +622,10 @@ static struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
 	if (!conn)
 		return ERR_PTR(-ENOMEM);
 
-	conn->dst_type = bdaddr_to_le(dst_type);
+	if (dst_type == BDADDR_LE_PUBLIC)
+		conn->dst_type = ADDR_LE_DEV_PUBLIC;
+	else
+		conn->dst_type = ADDR_LE_DEV_RANDOM;
 	conn->state = BT_CONNECT;
 	conn->out = true;
 	conn->link_mode |= HCI_LM_MASTER;
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 082f3966f894..0e05edee0962 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3695,15 +3695,3 @@ static void hci_cmd_work(struct work_struct *work)
 		}
 	}
 }
-
-u8 bdaddr_to_le(u8 bdaddr_type)
-{
-	switch (bdaddr_type) {
-	case BDADDR_LE_PUBLIC:
-		return ADDR_LE_DEV_PUBLIC;
-
-	default:
-		/* Fallback to LE Random address type */
-		return ADDR_LE_DEV_RANDOM;
-	}
-}
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 338878c13571..020f95b84b09 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3678,15 +3678,19 @@ static int load_long_term_keys(struct sock *sk, struct hci_dev *hdev,
 
 	for (i = 0; i < key_count; i++) {
 		struct mgmt_ltk_info *key = &cp->keys[i];
-		u8 type;
+		u8 type, addr_type;
+
+		if (key->addr.type == BDADDR_LE_PUBLIC)
+			addr_type = ADDR_LE_DEV_PUBLIC;
+		else
+			addr_type = ADDR_LE_DEV_RANDOM;
 
 		if (key->master)
 			type = HCI_SMP_LTK;
 		else
 			type = HCI_SMP_LTK_SLAVE;
 
-		hci_add_ltk(hdev, &key->addr.bdaddr,
-			    bdaddr_to_le(key->addr.type),
+		hci_add_ltk(hdev, &key->addr.bdaddr, addr_type,
 			    type, 0, key->authenticated, key->val,
 			    key->enc_size, key->ediv, key->rand);
 	}
-- 
cgit 


From e7c4096e16f0e362c6cf902baab0de37ebfc1266 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 03:57:39 -0700
Subject: Bluetooth: Store the source address type of LE connections

When establishing LE connections, it is possible to use a public
address (if available) or a random address. The type of address
is only known when creating connections, so make sure it is
stored in hci_conn structure.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h |  1 +
 net/bluetooth/hci_conn.c         | 11 +++++++----
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 7889495da843..714da9ea465e 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -300,6 +300,7 @@ struct hci_conn {
 
 	bdaddr_t	dst;
 	__u8		dst_type;
+	__u8		src_type;
 	__u16		handle;
 	__u16		state;
 	__u8		mode;
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index bb32f48b88f9..d9f7f93b813e 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -566,10 +566,7 @@ static int hci_create_le_conn(struct hci_conn *conn)
 	cp.scan_window = cpu_to_le16(hdev->le_scan_window);
 	bacpy(&cp.peer_addr, &conn->dst);
 	cp.peer_addr_type = conn->dst_type;
-	if (bacmp(&hdev->bdaddr, BDADDR_ANY))
-		cp.own_address_type = ADDR_LE_DEV_PUBLIC;
-	else
-		cp.own_address_type = ADDR_LE_DEV_RANDOM;
+	cp.own_address_type = conn->src_type;
 	cp.conn_interval_min = __constant_cpu_to_le16(0x0028);
 	cp.conn_interval_max = __constant_cpu_to_le16(0x0038);
 	cp.supervision_timeout = __constant_cpu_to_le16(0x002a);
@@ -626,6 +623,12 @@ static struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
 		conn->dst_type = ADDR_LE_DEV_PUBLIC;
 	else
 		conn->dst_type = ADDR_LE_DEV_RANDOM;
+
+	if (bacmp(&hdev->bdaddr, BDADDR_ANY))
+		conn->src_type = ADDR_LE_DEV_PUBLIC;
+	else
+		conn->src_type = ADDR_LE_DEV_RANDOM;
+
 	conn->state = BT_CONNECT;
 	conn->out = true;
 	conn->link_mode |= HCI_LM_MASTER;
-- 
cgit 


From 662e8820f38dcc458e0d4769194db5ed3469224f Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 05:23:59 -0700
Subject: Bluetooth: Store source address of HCI connections

The source addressed was based on the public address of the HCI device,
but with LE connections this not always the case. For example single
mode LE-only controllers would use a static random address. And this
address is configured by userspace.

To not complicate the lookup of what kind of address is in use, store
the correct source address for each HCI connection.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h | 1 +
 net/bluetooth/hci_conn.c         | 7 +++++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 714da9ea465e..0326b160b89a 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -300,6 +300,7 @@ struct hci_conn {
 
 	bdaddr_t	dst;
 	__u8		dst_type;
+	bdaddr_t	src;
 	__u8		src_type;
 	__u16		handle;
 	__u16		state;
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index d9f7f93b813e..ff04b051792d 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -381,6 +381,7 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
 		return NULL;
 
 	bacpy(&conn->dst, dst);
+	bacpy(&conn->src, &hdev->bdaddr);
 	conn->hdev  = hdev;
 	conn->type  = type;
 	conn->mode  = HCI_CM_ACTIVE;
@@ -624,10 +625,12 @@ static struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
 	else
 		conn->dst_type = ADDR_LE_DEV_RANDOM;
 
-	if (bacmp(&hdev->bdaddr, BDADDR_ANY))
+	if (bacmp(&conn->src, BDADDR_ANY)) {
 		conn->src_type = ADDR_LE_DEV_PUBLIC;
-	else
+	} else {
+		bacpy(&conn->src, &hdev->static_addr);
 		conn->src_type = ADDR_LE_DEV_RANDOM;
+	}
 
 	conn->state = BT_CONNECT;
 	conn->out = true;
-- 
cgit 


From 880be4e8d0db86a635b87f75fee7daa4f6006f45 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 07:25:18 -0700
Subject: Bluetooth: Update source address and type for incoming LE connections

The incoming LE connections do not have a proper source address and
address type set. The connection needs to be set with the same values
as used for advertising parameters.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_event.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index bbe2d292c4a9..aa6fed3a553b 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -3477,6 +3477,17 @@ static void hci_le_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 
 		conn->dst_type = ev->bdaddr_type;
 
+		/* The advertising parameters for own address type
+		 * define which source address and source address
+		 * type this connections has.
+		 */
+		if (bacmp(&conn->src, BDADDR_ANY)) {
+			conn->src_type = ADDR_LE_DEV_PUBLIC;
+		} else {
+			bacpy(&conn->src, &hdev->static_addr);
+			conn->src_type = ADDR_LE_DEV_RANDOM;
+		}
+
 		if (ev->role == LE_CONN_ROLE_MASTER) {
 			conn->out = true;
 			conn->link_mode |= HCI_LM_MASTER;
-- 
cgit 


From 2b36a5620acb5ee0c101ec32a20793da4426fd33 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 05:24:00 -0700
Subject: Bluetooth: Use hci_conn->src address for SMP functions

The source address is now stored in hci_conn->src and so use that
one for SMP functions.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/smp.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 06a082ea903e..f57b20908ed5 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -388,12 +388,12 @@ static void confirm_work(struct work_struct *work)
 
 	if (conn->hcon->out)
 		ret = smp_c1(tfm, smp->tk, smp->prnd, smp->preq, smp->prsp, 0,
-			     &conn->hcon->hdev->bdaddr, conn->hcon->dst_type,
+			     &conn->hcon->src, conn->hcon->dst_type,
 			     &conn->hcon->dst, res);
 	else
 		ret = smp_c1(tfm, smp->tk, smp->prnd, smp->preq, smp->prsp,
 			     conn->hcon->dst_type, &conn->hcon->dst, 0,
-			     &conn->hcon->hdev->bdaddr, res);
+			     &conn->hcon->src, res);
 	if (ret) {
 		reason = SMP_UNSPECIFIED;
 		goto error;
@@ -428,12 +428,10 @@ static void random_work(struct work_struct *work)
 
 	if (hcon->out)
 		ret = smp_c1(tfm, smp->tk, smp->rrnd, smp->preq, smp->prsp, 0,
-			     &hcon->hdev->bdaddr, hcon->dst_type, &hcon->dst,
-			     res);
+			     &hcon->src, hcon->dst_type, &hcon->dst, res);
 	else
 		ret = smp_c1(tfm, smp->tk, smp->rrnd, smp->preq, smp->prsp,
-			     hcon->dst_type, &hcon->dst, 0, &hcon->hdev->bdaddr,
-			     res);
+			     hcon->dst_type, &hcon->dst, 0, &hcon->src, res);
 	if (ret) {
 		reason = SMP_UNSPECIFIED;
 		goto error;
@@ -1011,7 +1009,7 @@ int smp_distribute_keys(struct l2cap_conn *conn, __u8 force)
 
 		/* Just public address */
 		memset(&addrinfo, 0, sizeof(addrinfo));
-		bacpy(&addrinfo.bdaddr, &conn->hcon->hdev->bdaddr);
+		bacpy(&addrinfo.bdaddr, &conn->hcon->src);
 
 		smp_send_cmd(conn, SMP_CMD_IDENT_ADDR_INFO, sizeof(addrinfo),
 								&addrinfo);
-- 
cgit 


From 6f59b904ae57df92915d7ade750853647620db2c Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 05:24:01 -0700
Subject: Bluetooth: Use hci_conn->src address for L2CAP functions

The source address is now stored in hci_conn->src and so use that
one for L2CAP functions.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/l2cap_core.c | 17 +++++++----------
 1 file changed, 7 insertions(+), 10 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 41e2efe67f7f..3ed9a2bf3d7c 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1381,8 +1381,7 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 
 	/* Check if we have socket listening on cid */
 	pchan = l2cap_global_chan_by_scid(BT_LISTEN, L2CAP_CID_ATT,
-					  &conn->hcon->hdev->bdaddr,
-					  &conn->hcon->dst);
+					  &conn->hcon->src, &conn->hcon->dst);
 	if (!pchan)
 		return;
 
@@ -1400,7 +1399,7 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 
 	chan->dcid = L2CAP_CID_ATT;
 
-	bacpy(&bt_sk(chan->sk)->src, &conn->hcon->hdev->bdaddr);
+	bacpy(&bt_sk(chan->sk)->src, &conn->hcon->src);
 	bacpy(&bt_sk(chan->sk)->dst, &conn->hcon->dst);
 
 	__l2cap_chan_add(conn, chan);
@@ -3759,8 +3758,7 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 	BT_DBG("psm 0x%2.2x scid 0x%4.4x", __le16_to_cpu(psm), scid);
 
 	/* Check if we have socket listening on psm */
-	pchan = l2cap_global_chan_by_psm(BT_LISTEN, psm,
-					 &conn->hcon->hdev->bdaddr,
+	pchan = l2cap_global_chan_by_psm(BT_LISTEN, psm, &conn->hcon->src,
 					 &conn->hcon->dst);
 	if (!pchan) {
 		result = L2CAP_CR_BAD_PSM;
@@ -3799,7 +3797,7 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 	 */
 	conn->hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
 
-	bacpy(&bt_sk(sk)->src, &conn->hcon->hdev->bdaddr);
+	bacpy(&bt_sk(sk)->src, &conn->hcon->src);
 	bacpy(&bt_sk(sk)->dst, &conn->hcon->dst);
 	chan->psm  = psm;
 	chan->dcid = scid;
@@ -4923,7 +4921,7 @@ static inline int l2cap_move_channel_req(struct l2cap_conn *conn,
 	 */
 	if ((__chan_is_moving(chan) ||
 	     chan->move_role != L2CAP_MOVE_ROLE_NONE) &&
-	    bacmp(&conn->hcon->hdev->bdaddr, &conn->hcon->dst) > 0) {
+	    bacmp(&conn->hcon->src, &conn->hcon->dst) > 0) {
 		result = L2CAP_MR_COLLISION;
 		goto send_move_response;
 	}
@@ -6438,7 +6436,7 @@ static void l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm,
 	if (hcon->type != ACL_LINK)
 		goto drop;
 
-	chan = l2cap_global_chan_by_psm(0, psm, &conn->hcon->hdev->bdaddr,
+	chan = l2cap_global_chan_by_psm(0, psm, &conn->hcon->src,
 					&conn->hcon->dst);
 	if (!chan)
 		goto drop;
@@ -6468,8 +6466,7 @@ static void l2cap_att_channel(struct l2cap_conn *conn,
 		goto drop;
 
 	chan = l2cap_global_chan_by_scid(BT_CONNECTED, L2CAP_CID_ATT,
-					 &conn->hcon->hdev->bdaddr,
-					 &conn->hcon->dst);
+					 &conn->hcon->src, &conn->hcon->dst);
 	if (!chan)
 		goto drop;
 
-- 
cgit 


From c8462ca65f39d9402c52ef0c5f338a466bb34b43 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 05:24:02 -0700
Subject: Bluetooth: Fix input address type for SMP C1 function

The smp_c1() so far always assumed public addresses as input for its
operation. However it should provide actually the source address type
of the actual connection.

Finally the source address type is tracked in hci_conn->src_type and
so use that one as input.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/smp.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index f57b20908ed5..112e58153f92 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -387,13 +387,13 @@ static void confirm_work(struct work_struct *work)
 	smp->tfm = tfm;
 
 	if (conn->hcon->out)
-		ret = smp_c1(tfm, smp->tk, smp->prnd, smp->preq, smp->prsp, 0,
-			     &conn->hcon->src, conn->hcon->dst_type,
-			     &conn->hcon->dst, res);
+		ret = smp_c1(tfm, smp->tk, smp->prnd, smp->preq, smp->prsp,
+			     conn->hcon->src_type, &conn->hcon->src,
+			     conn->hcon->dst_type, &conn->hcon->dst, res);
 	else
 		ret = smp_c1(tfm, smp->tk, smp->prnd, smp->preq, smp->prsp,
-			     conn->hcon->dst_type, &conn->hcon->dst, 0,
-			     &conn->hcon->src, res);
+			     conn->hcon->dst_type, &conn->hcon->dst,
+			     conn->hcon->src_type, &conn->hcon->src, res);
 	if (ret) {
 		reason = SMP_UNSPECIFIED;
 		goto error;
@@ -427,11 +427,13 @@ static void random_work(struct work_struct *work)
 	BT_DBG("conn %p %s", conn, conn->hcon->out ? "master" : "slave");
 
 	if (hcon->out)
-		ret = smp_c1(tfm, smp->tk, smp->rrnd, smp->preq, smp->prsp, 0,
-			     &hcon->src, hcon->dst_type, &hcon->dst, res);
+		ret = smp_c1(tfm, smp->tk, smp->rrnd, smp->preq, smp->prsp,
+			     hcon->src_type, &hcon->src,
+			     hcon->dst_type, &hcon->dst, res);
 	else
 		ret = smp_c1(tfm, smp->tk, smp->rrnd, smp->preq, smp->prsp,
-			     hcon->dst_type, &hcon->dst, 0, &hcon->src, res);
+			     hcon->dst_type, &hcon->dst,
+			     hcon->src_type, &hcon->src, res);
 	if (ret) {
 		reason = SMP_UNSPECIFIED;
 		goto error;
-- 
cgit 


From f1560463ebb7d883be2f5e55e71f7e8b78c0ca1a Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 05:43:25 -0700
Subject: Bluetooth: Fix coding style violations in SMP handling

The SMP source code has a few coding style violations. Fix them up
all at once. No actual code has changed.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/smp.c | 35 +++++++++++++++++------------------
 1 file changed, 17 insertions(+), 18 deletions(-)

diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 112e58153f92..463e50c58716 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -86,8 +86,8 @@ static int smp_e(struct crypto_blkcipher *tfm, const u8 *k, u8 *r)
 }
 
 static int smp_c1(struct crypto_blkcipher *tfm, u8 k[16], u8 r[16],
-		u8 preq[7], u8 pres[7], u8 _iat, bdaddr_t *ia,
-		u8 _rat, bdaddr_t *ra, u8 res[16])
+		  u8 preq[7], u8 pres[7], u8 _iat, bdaddr_t *ia,
+		  u8 _rat, bdaddr_t *ra, u8 res[16])
 {
 	u8 p1[16], p2[16];
 	int err;
@@ -127,8 +127,8 @@ static int smp_c1(struct crypto_blkcipher *tfm, u8 k[16], u8 r[16],
 	return err;
 }
 
-static int smp_s1(struct crypto_blkcipher *tfm, u8 k[16],
-			u8 r1[16], u8 r2[16], u8 _r[16])
+static int smp_s1(struct crypto_blkcipher *tfm, u8 k[16], u8 r1[16],
+		  u8 r2[16], u8 _r[16])
 {
 	int err;
 
@@ -151,7 +151,7 @@ static int smp_rand(u8 *buf)
 }
 
 static struct sk_buff *smp_build_cmd(struct l2cap_conn *conn, u8 code,
-						u16 dlen, void *data)
+				     u16 dlen, void *data)
 {
 	struct sk_buff *skb;
 	struct l2cap_hdr *lh;
@@ -214,9 +214,8 @@ static __u8 seclevel_to_authreq(__u8 sec_level)
 }
 
 static void build_pairing_cmd(struct l2cap_conn *conn,
-				struct smp_cmd_pairing *req,
-				struct smp_cmd_pairing *rsp,
-				__u8 authreq)
+			      struct smp_cmd_pairing *req,
+			      struct smp_cmd_pairing *rsp, __u8 authreq)
 {
 	u8 dist_keys = 0;
 
@@ -250,7 +249,7 @@ static u8 check_enc_key_size(struct l2cap_conn *conn, __u8 max_key_size)
 	struct smp_chan *smp = conn->smp_chan;
 
 	if ((max_key_size > SMP_MAX_ENC_KEY_SIZE) ||
-			(max_key_size < SMP_MIN_ENC_KEY_SIZE))
+	    (max_key_size < SMP_MIN_ENC_KEY_SIZE))
 		return SMP_ENC_KEY_SIZE;
 
 	smp->enc_key_size = max_key_size;
@@ -264,7 +263,7 @@ static void smp_failure(struct l2cap_conn *conn, u8 reason, u8 send)
 
 	if (send)
 		smp_send_cmd(conn, SMP_CMD_PAIRING_FAIL, sizeof(reason),
-								&reason);
+			     &reason);
 
 	clear_bit(HCI_CONN_ENCRYPT_PEND, &hcon->flags);
 	mgmt_auth_failed(hcon->hdev, &hcon->dst, hcon->type, hcon->dst_type,
@@ -310,8 +309,8 @@ static int tk_request(struct l2cap_conn *conn, u8 remote_oob, u8 auth,
 	/* If either side has unknown io_caps, use JUST WORKS */
 	/* Otherwise, look up method from the table */
 	if (!(auth & SMP_AUTH_MITM) ||
-			local_io > SMP_IO_KEYBOARD_DISPLAY ||
-			remote_io > SMP_IO_KEYBOARD_DISPLAY)
+	    local_io > SMP_IO_KEYBOARD_DISPLAY ||
+	    remote_io > SMP_IO_KEYBOARD_DISPLAY)
 		method = JUST_WORKS;
 	else
 		method = gen_method[remote_io][local_io];
@@ -481,7 +480,7 @@ static void random_work(struct work_struct *work)
 		swap128(key, stk);
 
 		memset(stk + smp->enc_key_size, 0,
-				SMP_MAX_ENC_KEY_SIZE - smp->enc_key_size);
+		       SMP_MAX_ENC_KEY_SIZE - smp->enc_key_size);
 
 		hci_add_ltk(hcon->hdev, &hcon->dst, hcon->dst_type,
 			    HCI_SMP_STK_SLAVE, 0, 0, stk, smp->enc_key_size,
@@ -498,7 +497,7 @@ static struct smp_chan *smp_chan_create(struct l2cap_conn *conn)
 {
 	struct smp_chan *smp;
 
-	smp = kzalloc(sizeof(struct smp_chan), GFP_ATOMIC);
+	smp = kzalloc(sizeof(*smp), GFP_ATOMIC);
 	if (!smp)
 		return NULL;
 
@@ -653,7 +652,7 @@ static u8 smp_cmd_pairing_rsp(struct l2cap_conn *conn, struct sk_buff *skb)
 	memcpy(&smp->prsp[1], rsp, sizeof(*rsp));
 
 	if ((req->auth_req & SMP_AUTH_BONDING) &&
-			(rsp->auth_req & SMP_AUTH_BONDING))
+	    (rsp->auth_req & SMP_AUTH_BONDING))
 		auth = SMP_AUTH_BONDING;
 
 	auth |= (req->auth_req | rsp->auth_req) & SMP_AUTH_MITM;
@@ -688,7 +687,7 @@ static u8 smp_cmd_pairing_confirm(struct l2cap_conn *conn, struct sk_buff *skb)
 
 		swap128(smp->prnd, random);
 		smp_send_cmd(conn, SMP_CMD_PAIRING_RANDOM, sizeof(random),
-								random);
+			     random);
 	} else if (test_bit(SMP_FLAG_TK_VALID, &smp->smp_flags)) {
 		queue_work(hdev->workqueue, &smp->confirm);
 	} else {
@@ -732,8 +731,8 @@ static u8 smp_ltk_encrypt(struct l2cap_conn *conn, u8 sec_level)
 	hcon->enc_key_size = key->enc_size;
 
 	return 1;
-
 }
+
 static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb)
 {
 	struct smp_cmd_security_req *rp = (void *) skb->data;
@@ -1014,7 +1013,7 @@ int smp_distribute_keys(struct l2cap_conn *conn, __u8 force)
 		bacpy(&addrinfo.bdaddr, &conn->hcon->src);
 
 		smp_send_cmd(conn, SMP_CMD_IDENT_ADDR_INFO, sizeof(addrinfo),
-								&addrinfo);
+			     &addrinfo);
 
 		*keydist &= ~SMP_DIST_ID_KEY;
 	}
-- 
cgit 


From 4637f7c0d0e95361f25f456b34cc2138fdfe95f8 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 05:56:37 -0700
Subject: Bluetooth: Update L2CAP socket source address from HCI connection

When having LE connections, the source address is not always the
public address of the controller. So update the socket address
based on the actual used source address of the HCI connection.

This also remove the pointless source address pointer and adds
a proper lock around the socket structure.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/l2cap_core.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 3ed9a2bf3d7c..062e28e4722b 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1756,17 +1756,16 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 		       bdaddr_t *dst, u8 dst_type)
 {
 	struct sock *sk = chan->sk;
-	bdaddr_t *src = &bt_sk(sk)->src;
 	struct l2cap_conn *conn;
 	struct hci_conn *hcon;
 	struct hci_dev *hdev;
 	__u8 auth_type;
 	int err;
 
-	BT_DBG("%pMR -> %pMR (type %u) psm 0x%2.2x", src, dst,
+	BT_DBG("%pMR -> %pMR (type %u) psm 0x%2.2x", &bt_sk(sk)->src, dst,
 	       dst_type, __le16_to_cpu(psm));
 
-	hdev = hci_get_route(dst, src);
+	hdev = hci_get_route(dst, &bt_sk(sk)->src);
 	if (!hdev)
 		return -EHOSTUNREACH;
 
@@ -1858,7 +1857,9 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 	}
 
 	/* Update source addr of the socket */
-	bacpy(src, &hdev->bdaddr);
+	lock_sock(sk);
+	bacpy(&bt_sk(sk)->src, &hcon->src);
+	release_sock(sk);
 
 	l2cap_chan_unlock(chan);
 	l2cap_chan_add(conn, chan);
-- 
cgit 


From 05864648f39a3b2ee8311b44dfd4b06cbb904414 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 07:00:00 +0200
Subject: dma: coh901318: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/coh901318.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/coh901318.c b/drivers/dma/coh901318.c
index 31011d2a26fc..3025b9107af2 100644
--- a/drivers/dma/coh901318.c
+++ b/drivers/dma/coh901318.c
@@ -2694,7 +2694,7 @@ static int __init coh901318_probe(struct platform_device *pdev)
 	if (irq < 0)
 		return irq;
 
-	err = devm_request_irq(&pdev->dev, irq, dma_irq_handler, IRQF_DISABLED,
+	err = devm_request_irq(&pdev->dev, irq, dma_irq_handler, 0,
 			       "coh901318", base);
 	if (err)
 		return err;
-- 
cgit 


From 174b537ac2b8fe1bac31039185b80f873716c5a1 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 07:10:51 +0200
Subject: dma: misc: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/amba-pl08x.c | 3 +--
 drivers/dma/k3dma.c      | 2 +-
 drivers/dma/mmp_pdma.c   | 4 ++--
 drivers/dma/mmp_tdma.c   | 4 ++--
 drivers/dma/sh/shdmac.c  | 4 ++--
 5 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index fce46c5bf1c7..9b5025777ac8 100644
--- a/drivers/dma/amba-pl08x.c
+++ b/drivers/dma/amba-pl08x.c
@@ -2133,8 +2133,7 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id)
 	writel(0x000000FF, pl08x->base + PL080_ERR_CLEAR);
 	writel(0x000000FF, pl08x->base + PL080_TC_CLEAR);
 
-	ret = request_irq(adev->irq[0], pl08x_irq, IRQF_DISABLED,
-			  DRIVER_NAME, pl08x);
+	ret = request_irq(adev->irq[0], pl08x_irq, 0, DRIVER_NAME, pl08x);
 	if (ret) {
 		dev_err(&adev->dev, "%s failed to request interrupt %d\n",
 			__func__, adev->irq[0]);
diff --git a/drivers/dma/k3dma.c b/drivers/dma/k3dma.c
index a2c330f5f952..da430623fbc4 100644
--- a/drivers/dma/k3dma.c
+++ b/drivers/dma/k3dma.c
@@ -693,7 +693,7 @@ static int k3_dma_probe(struct platform_device *op)
 
 	irq = platform_get_irq(op, 0);
 	ret = devm_request_irq(&op->dev, irq,
-			k3_dma_int_handler, IRQF_DISABLED, DRIVER_NAME, d);
+			k3_dma_int_handler, 0, DRIVER_NAME, d);
 	if (ret)
 		return ret;
 
diff --git a/drivers/dma/mmp_pdma.c b/drivers/dma/mmp_pdma.c
index 558994f38822..dcb1e05149a7 100644
--- a/drivers/dma/mmp_pdma.c
+++ b/drivers/dma/mmp_pdma.c
@@ -862,7 +862,7 @@ static int mmp_pdma_chan_init(struct mmp_pdma_device *pdev,
 
 	if (irq) {
 		ret = devm_request_irq(pdev->dev, irq,
-			mmp_pdma_chan_handler, IRQF_DISABLED, "pdma", phy);
+			mmp_pdma_chan_handler, 0, "pdma", phy);
 		if (ret) {
 			dev_err(pdev->dev, "channel request irq fail!\n");
 			return ret;
@@ -969,7 +969,7 @@ static int mmp_pdma_probe(struct platform_device *op)
 		/* all chan share one irq, demux inside */
 		irq = platform_get_irq(op, 0);
 		ret = devm_request_irq(pdev->dev, irq,
-			mmp_pdma_int_handler, IRQF_DISABLED, "pdma", pdev);
+			mmp_pdma_int_handler, 0, "pdma", pdev);
 		if (ret)
 			return ret;
 	}
diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index 38cb517fb2eb..ea5c3d26dd35 100644
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -324,7 +324,7 @@ static int mmp_tdma_alloc_chan_resources(struct dma_chan *chan)
 
 	if (tdmac->irq) {
 		ret = devm_request_irq(tdmac->dev, tdmac->irq,
-			mmp_tdma_chan_handler, IRQF_DISABLED, "tdma", tdmac);
+			mmp_tdma_chan_handler, 0, "tdma", tdmac);
 		if (ret)
 			return ret;
 	}
@@ -559,7 +559,7 @@ static int mmp_tdma_probe(struct platform_device *pdev)
 	if (irq_num != chan_num) {
 		irq = platform_get_irq(pdev, 0);
 		ret = devm_request_irq(&pdev->dev, irq,
-			mmp_tdma_int_handler, IRQF_DISABLED, "tdma", tdev);
+			mmp_tdma_int_handler, 0, "tdma", tdev);
 		if (ret)
 			return ret;
 	}
diff --git a/drivers/dma/sh/shdmac.c b/drivers/dma/sh/shdmac.c
index 1069e8869f20..0d765c0e21ec 100644
--- a/drivers/dma/sh/shdmac.c
+++ b/drivers/dma/sh/shdmac.c
@@ -685,7 +685,7 @@ MODULE_DEVICE_TABLE(of, sh_dmae_of_match);
 static int sh_dmae_probe(struct platform_device *pdev)
 {
 	const struct sh_dmae_pdata *pdata;
-	unsigned long irqflags = IRQF_DISABLED,
+	unsigned long irqflags = 0,
 		chan_flag[SH_DMAE_MAX_CHANNELS] = {};
 	int errirq, chan_irq[SH_DMAE_MAX_CHANNELS];
 	int err, i, irq_cnt = 0, irqres = 0, irq_cap = 0;
@@ -838,7 +838,7 @@ static int sh_dmae_probe(struct platform_device *pdev)
 				    IORESOURCE_IRQ_SHAREABLE)
 					chan_flag[irq_cnt] = IRQF_SHARED;
 				else
-					chan_flag[irq_cnt] = IRQF_DISABLED;
+					chan_flag[irq_cnt] = 0;
 				dev_dbg(&pdev->dev,
 					"Found IRQ %d for channel %d\n",
 					i, irq_cnt);
-- 
cgit 


From 20a90b0ebca434421c30de5ca6b1979ca02e52bf Mon Sep 17 00:00:00 2001
From: Qiao Zhou <zhouqiao@marvell.com>
Date: Fri, 11 Oct 2013 09:07:01 +0800
Subject: dma: mmp_tdma: add multiple burst size support for 910-squ

add multiple burst size support for 910-squ.

Signed-off-by: Qiao Zhou <zhouqiao@marvell.com>
Acked-by: Zhangfei Gao <zhangfei.gao@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/mmp_tdma.c | 30 +++++++++++++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index ea5c3d26dd35..8f3e865053d4 100644
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -62,6 +62,11 @@
 #define TDCR_BURSTSZ_16B	(0x3 << 6)
 #define TDCR_BURSTSZ_32B	(0x6 << 6)
 #define TDCR_BURSTSZ_64B	(0x7 << 6)
+#define TDCR_BURSTSZ_SQU_1B		(0x5 << 6)
+#define TDCR_BURSTSZ_SQU_2B		(0x6 << 6)
+#define TDCR_BURSTSZ_SQU_4B		(0x0 << 6)
+#define TDCR_BURSTSZ_SQU_8B		(0x1 << 6)
+#define TDCR_BURSTSZ_SQU_16B	(0x3 << 6)
 #define TDCR_BURSTSZ_SQU_32B	(0x7 << 6)
 #define TDCR_BURSTSZ_128B	(0x5 << 6)
 #define TDCR_DSTDIR_MSK		(0x3 << 4)	/* Dst Direction */
@@ -228,8 +233,31 @@ static int mmp_tdma_config_chan(struct mmp_tdma_chan *tdmac)
 			return -EINVAL;
 		}
 	} else if (tdmac->type == PXA910_SQU) {
-		tdcr |= TDCR_BURSTSZ_SQU_32B;
 		tdcr |= TDCR_SSPMOD;
+
+		switch (tdmac->burst_sz) {
+		case 1:
+			tdcr |= TDCR_BURSTSZ_SQU_1B;
+			break;
+		case 2:
+			tdcr |= TDCR_BURSTSZ_SQU_2B;
+			break;
+		case 4:
+			tdcr |= TDCR_BURSTSZ_SQU_4B;
+			break;
+		case 8:
+			tdcr |= TDCR_BURSTSZ_SQU_8B;
+			break;
+		case 16:
+			tdcr |= TDCR_BURSTSZ_SQU_16B;
+			break;
+		case 32:
+			tdcr |= TDCR_BURSTSZ_SQU_32B;
+			break;
+		default:
+			dev_err(tdmac->dev, "mmp_tdma: unknown burst size.\n");
+			return -EINVAL;
+		}
 	}
 
 	writel(tdcr, tdmac->reg_base + TDCR);
-- 
cgit 


From 7eafc59e2f547fce3a31b3e2d03c14d57e9162b2 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 08:12:47 -0700
Subject: Bluetooth: Store address information in L2CAP channel structure

With the effort of abstracting the L2CAP socket from the underlying
L2CAP channel it is important to store the source and destination
address information directly in the L2CAP channel structure.

Direct access to the HCI connection address information is not
possible since they might not be avaiable at L2CAP channel
creation time. The address information will be updated when
the underlying BR/EDR or LE connection status changes.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/l2cap.h |  2 ++
 net/bluetooth/l2cap_core.c    | 61 +++++++++++++++++--------------------------
 net/bluetooth/l2cap_sock.c    |  6 ++---
 3 files changed, 29 insertions(+), 40 deletions(-)

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 1a929afe4f16..26b5066e74e2 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -444,6 +444,8 @@ struct l2cap_chan {
 
 	__u8		state;
 
+	bdaddr_t	dst;
+	bdaddr_t	src;
 	__le16		psm;
 	__u16		dcid;
 	__u16		scid;
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 062e28e4722b..be3e0f8c6f8b 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -149,7 +149,7 @@ static struct l2cap_chan *__l2cap_global_chan_by_addr(__le16 psm, bdaddr_t *src)
 	struct l2cap_chan *c;
 
 	list_for_each_entry(c, &chan_list, global_l) {
-		if (c->sport == psm && !bacmp(&bt_sk(c->sk)->src, src))
+		if (c->sport == psm && !bacmp(&c->src, src))
 			return c;
 	}
 	return NULL;
@@ -621,10 +621,8 @@ void l2cap_chan_del(struct l2cap_chan *chan, int err)
 void l2cap_chan_close(struct l2cap_chan *chan, int reason)
 {
 	struct l2cap_conn *conn = chan->conn;
-	struct sock *sk = chan->sk;
 
-	BT_DBG("chan %p state %s sk %p", chan, state_to_string(chan->state),
-	       sk);
+	BT_DBG("chan %p state %s", chan, state_to_string(chan->state));
 
 	switch (chan->state) {
 	case BT_LISTEN:
@@ -635,6 +633,7 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason)
 	case BT_CONFIG:
 		if (chan->chan_type == L2CAP_CHAN_CONN_ORIENTED &&
 		    conn->hcon->type == ACL_LINK) {
+			struct sock *sk = chan->sk;
 			__set_chan_timer(chan, sk->sk_sndtimeo);
 			l2cap_send_disconn_req(chan, reason);
 		} else
@@ -644,6 +643,7 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason)
 	case BT_CONNECT2:
 		if (chan->chan_type == L2CAP_CHAN_CONN_ORIENTED &&
 		    conn->hcon->type == ACL_LINK) {
+			struct sock *sk = chan->sk;
 			struct l2cap_conn_rsp rsp;
 			__u16 result;
 
@@ -1257,8 +1257,6 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
 	mutex_lock(&conn->chan_lock);
 
 	list_for_each_entry_safe(chan, tmp, &conn->chan_l, list) {
-		struct sock *sk = chan->sk;
-
 		l2cap_chan_lock(chan);
 
 		if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED) {
@@ -1284,6 +1282,7 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
 			l2cap_start_connection(chan);
 
 		} else if (chan->state == BT_CONNECT2) {
+			struct sock *sk = chan->sk;
 			struct l2cap_conn_rsp rsp;
 			char buf[128];
 			rsp.scid = cpu_to_le16(chan->dcid);
@@ -1341,8 +1340,6 @@ static struct l2cap_chan *l2cap_global_chan_by_scid(int state, u16 cid,
 	read_lock(&chan_list_lock);
 
 	list_for_each_entry(c, &chan_list, global_l) {
-		struct sock *sk = c->sk;
-
 		if (state && c->state != state)
 			continue;
 
@@ -1351,16 +1348,16 @@ static struct l2cap_chan *l2cap_global_chan_by_scid(int state, u16 cid,
 			int src_any, dst_any;
 
 			/* Exact match. */
-			src_match = !bacmp(&bt_sk(sk)->src, src);
-			dst_match = !bacmp(&bt_sk(sk)->dst, dst);
+			src_match = !bacmp(&c->src, src);
+			dst_match = !bacmp(&c->dst, dst);
 			if (src_match && dst_match) {
 				read_unlock(&chan_list_lock);
 				return c;
 			}
 
 			/* Closest match */
-			src_any = !bacmp(&bt_sk(sk)->src, BDADDR_ANY);
-			dst_any = !bacmp(&bt_sk(sk)->dst, BDADDR_ANY);
+			src_any = !bacmp(&c->src, BDADDR_ANY);
+			dst_any = !bacmp(&c->dst, BDADDR_ANY);
 			if ((src_match && dst_any) || (src_any && dst_match) ||
 			    (src_any && dst_any))
 				c1 = c;
@@ -1399,8 +1396,8 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 
 	chan->dcid = L2CAP_CID_ATT;
 
-	bacpy(&bt_sk(chan->sk)->src, &conn->hcon->src);
-	bacpy(&bt_sk(chan->sk)->dst, &conn->hcon->dst);
+	bacpy(&chan->src, &conn->hcon->src);
+	bacpy(&chan->dst, &conn->hcon->dst);
 
 	__l2cap_chan_add(conn, chan);
 
@@ -1721,8 +1718,6 @@ static struct l2cap_chan *l2cap_global_chan_by_psm(int state, __le16 psm,
 	read_lock(&chan_list_lock);
 
 	list_for_each_entry(c, &chan_list, global_l) {
-		struct sock *sk = c->sk;
-
 		if (state && c->state != state)
 			continue;
 
@@ -1731,16 +1726,16 @@ static struct l2cap_chan *l2cap_global_chan_by_psm(int state, __le16 psm,
 			int src_any, dst_any;
 
 			/* Exact match. */
-			src_match = !bacmp(&bt_sk(sk)->src, src);
-			dst_match = !bacmp(&bt_sk(sk)->dst, dst);
+			src_match = !bacmp(&c->src, src);
+			dst_match = !bacmp(&c->dst, dst);
 			if (src_match && dst_match) {
 				read_unlock(&chan_list_lock);
 				return c;
 			}
 
 			/* Closest match */
-			src_any = !bacmp(&bt_sk(sk)->src, BDADDR_ANY);
-			dst_any = !bacmp(&bt_sk(sk)->dst, BDADDR_ANY);
+			src_any = !bacmp(&c->src, BDADDR_ANY);
+			dst_any = !bacmp(&c->dst, BDADDR_ANY);
 			if ((src_match && dst_any) || (src_any && dst_match) ||
 			    (src_any && dst_any))
 				c1 = c;
@@ -1762,10 +1757,10 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 	__u8 auth_type;
 	int err;
 
-	BT_DBG("%pMR -> %pMR (type %u) psm 0x%2.2x", &bt_sk(sk)->src, dst,
+	BT_DBG("%pMR -> %pMR (type %u) psm 0x%2.2x", &chan->src, dst,
 	       dst_type, __le16_to_cpu(psm));
 
-	hdev = hci_get_route(dst, &bt_sk(sk)->src);
+	hdev = hci_get_route(dst, &chan->src);
 	if (!hdev)
 		return -EHOSTUNREACH;
 
@@ -1822,9 +1817,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 	}
 
 	/* Set destination address and psm */
-	lock_sock(sk);
-	bacpy(&bt_sk(sk)->dst, dst);
-	release_sock(sk);
+	bacpy(&chan->dst, dst);
 
 	chan->psm = psm;
 	chan->dcid = cid;
@@ -1857,9 +1850,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 	}
 
 	/* Update source addr of the socket */
-	lock_sock(sk);
-	bacpy(&bt_sk(sk)->src, &hcon->src);
-	release_sock(sk);
+	bacpy(&chan->src, &hcon->src);
 
 	l2cap_chan_unlock(chan);
 	l2cap_chan_add(conn, chan);
@@ -3798,8 +3789,8 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 	 */
 	conn->hcon->disc_timeout = HCI_DISCONN_TIMEOUT;
 
-	bacpy(&bt_sk(sk)->src, &conn->hcon->src);
-	bacpy(&bt_sk(sk)->dst, &conn->hcon->dst);
+	bacpy(&chan->src, &conn->hcon->src);
+	bacpy(&chan->dst, &conn->hcon->dst);
 	chan->psm  = psm;
 	chan->dcid = scid;
 	chan->local_amp_id = amp_id;
@@ -6542,17 +6533,15 @@ int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr)
 	/* Find listening sockets and check their link_mode */
 	read_lock(&chan_list_lock);
 	list_for_each_entry(c, &chan_list, global_l) {
-		struct sock *sk = c->sk;
-
 		if (c->state != BT_LISTEN)
 			continue;
 
-		if (!bacmp(&bt_sk(sk)->src, &hdev->bdaddr)) {
+		if (!bacmp(&c->src, &hdev->bdaddr)) {
 			lm1 |= HCI_LM_ACCEPT;
 			if (test_bit(FLAG_ROLE_SWITCH, &c->flags))
 				lm1 |= HCI_LM_MASTER;
 			exact++;
-		} else if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY)) {
+		} else if (!bacmp(&c->src, BDADDR_ANY)) {
 			lm2 |= HCI_LM_ACCEPT;
 			if (test_bit(FLAG_ROLE_SWITCH, &c->flags))
 				lm2 |= HCI_LM_MASTER;
@@ -6840,10 +6829,8 @@ static int l2cap_debugfs_show(struct seq_file *f, void *p)
 	read_lock(&chan_list_lock);
 
 	list_for_each_entry(c, &chan_list, global_l) {
-		struct sock *sk = c->sk;
-
 		seq_printf(f, "%pMR %pMR %d %d 0x%4.4x 0x%4.4x %d %d %d %d\n",
-			   &bt_sk(sk)->src, &bt_sk(sk)->dst,
+			   &c->src, &c->dst,
 			   c->state, __le16_to_cpu(c->psm),
 			   c->scid, c->dcid, c->imtu, c->omtu,
 			   c->sec_level, c->mode);
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index bd6fe7fd2737..9fe80d228c19 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -112,7 +112,7 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
 		break;
 	}
 
-	bacpy(&bt_sk(sk)->src, &la.l2_bdaddr);
+	bacpy(&chan->src, &la.l2_bdaddr);
 
 	chan->state = BT_BOUND;
 	sk->sk_state = BT_BOUND;
@@ -274,11 +274,11 @@ static int l2cap_sock_getname(struct socket *sock, struct sockaddr *addr,
 
 	if (peer) {
 		la->l2_psm = chan->psm;
-		bacpy(&la->l2_bdaddr, &bt_sk(sk)->dst);
+		bacpy(&la->l2_bdaddr, &chan->dst);
 		la->l2_cid = cpu_to_le16(chan->dcid);
 	} else {
 		la->l2_psm = chan->sport;
-		bacpy(&la->l2_bdaddr, &bt_sk(sk)->src);
+		bacpy(&la->l2_bdaddr, &chan->src);
 		la->l2_cid = cpu_to_le16(chan->scid);
 	}
 
-- 
cgit 


From 4f1654e08464abad06487e173661cb73721d27a7 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 08:50:41 -0700
Subject: Bluetooth: Return the correct address type for L2CAP sockets

The L2CAP sockets can use BR/EDR public, LE public and LE random
addresses for various combinations of source and destination
devices. So make sure that getsockname(), getpeername() and
accept() return the correct address type.

For this the address type of the source and destination is stored
with the L2CAP channel information. The stored address type is
not the one specific for the HCI protocol. It is the address
type used for the L2CAP sockets and the management interface.

The underlying HCI connections store the HCI address type. If
needed, it gets converted to the socket address type.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/l2cap.h |  5 +++--
 net/bluetooth/l2cap_core.c    | 18 ++++++++++++++++++
 net/bluetooth/l2cap_sock.c    |  3 +++
 3 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 26b5066e74e2..a27d51dc39a4 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -445,8 +445,11 @@ struct l2cap_chan {
 	__u8		state;
 
 	bdaddr_t	dst;
+	__u8		dst_type;
 	bdaddr_t	src;
+	__u8		src_type;
 	__le16		psm;
+	__le16		sport;
 	__u16		dcid;
 	__u16		scid;
 
@@ -457,8 +460,6 @@ struct l2cap_chan {
 	__u8		chan_type;
 	__u8		chan_policy;
 
-	__le16		sport;
-
 	__u8		sec_level;
 
 	__u8		ident;
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index be3e0f8c6f8b..769c379b3eeb 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -59,6 +59,18 @@ static void l2cap_send_disconn_req(struct l2cap_chan *chan, int err);
 static void l2cap_tx(struct l2cap_chan *chan, struct l2cap_ctrl *control,
 		     struct sk_buff_head *skbs, u8 event);
 
+static inline __u8 bdaddr_type(struct hci_conn *hcon, __u8 type)
+{
+	if (hcon->type == LE_LINK) {
+		if (type == ADDR_LE_DEV_PUBLIC)
+			return BDADDR_LE_PUBLIC;
+		else
+			return BDADDR_LE_RANDOM;
+	}
+
+	return BDADDR_BREDR;
+}
+
 /* ---- L2CAP channels ---- */
 
 static struct l2cap_chan *__l2cap_get_chan_by_dcid(struct l2cap_conn *conn,
@@ -1398,6 +1410,8 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 
 	bacpy(&chan->src, &conn->hcon->src);
 	bacpy(&chan->dst, &conn->hcon->dst);
+	chan->src_type = bdaddr_type(conn->hcon, conn->hcon->src_type);
+	chan->dst_type = bdaddr_type(conn->hcon, conn->hcon->dst_type);
 
 	__l2cap_chan_add(conn, chan);
 
@@ -1818,6 +1832,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 
 	/* Set destination address and psm */
 	bacpy(&chan->dst, dst);
+	chan->dst_type = dst_type;
 
 	chan->psm = psm;
 	chan->dcid = cid;
@@ -1851,6 +1866,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 
 	/* Update source addr of the socket */
 	bacpy(&chan->src, &hcon->src);
+	chan->src_type = bdaddr_type(hcon, hcon->src_type);
 
 	l2cap_chan_unlock(chan);
 	l2cap_chan_add(conn, chan);
@@ -3791,6 +3807,8 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 
 	bacpy(&chan->src, &conn->hcon->src);
 	bacpy(&chan->dst, &conn->hcon->dst);
+	chan->src_type = bdaddr_type(conn->hcon, conn->hcon->src_type);
+	chan->dst_type = bdaddr_type(conn->hcon, conn->hcon->dst_type);
 	chan->psm  = psm;
 	chan->dcid = scid;
 	chan->local_amp_id = amp_id;
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 9fe80d228c19..6262e23b71a4 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -113,6 +113,7 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
 	}
 
 	bacpy(&chan->src, &la.l2_bdaddr);
+	chan->src_type = la.l2_bdaddr_type;
 
 	chan->state = BT_BOUND;
 	sk->sk_state = BT_BOUND;
@@ -276,10 +277,12 @@ static int l2cap_sock_getname(struct socket *sock, struct sockaddr *addr,
 		la->l2_psm = chan->psm;
 		bacpy(&la->l2_bdaddr, &chan->dst);
 		la->l2_cid = cpu_to_le16(chan->dcid);
+		la->l2_bdaddr_type = chan->dst_type;
 	} else {
 		la->l2_psm = chan->sport;
 		bacpy(&la->l2_bdaddr, &chan->src);
 		la->l2_cid = cpu_to_le16(chan->scid);
+		la->l2_bdaddr_type = chan->src_type;
 	}
 
 	return 0;
-- 
cgit 


From e98b3cafe5f048be40ff6acb18dfa7c9a0e9423e Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Mon, 30 Sep 2013 08:50:48 +0200
Subject: dma: pl330: Support per channel irq allocation

Some pl330 have per channel irq and it is necessary
to allocate all of them. Loop over irq assigned for this
device to support these pl330 IPs.

For example this IP is available on Xilinx Zynq platform.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Tested-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/pl330.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 58623dc474d1..96de393aaf4f 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2922,11 +2922,18 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
 
 	amba_set_drvdata(adev, pdmac);
 
-	irq = adev->irq[0];
-	ret = devm_request_irq(&adev->dev, irq, pl330_irq_handler, 0,
-			dev_name(&adev->dev), pi);
-	if (ret)
-		return ret;
+	for (i = 0; i <= AMBA_NR_IRQS; i++) {
+		irq = adev->irq[i];
+		if (irq) {
+			ret = devm_request_irq(&adev->dev, irq,
+					       pl330_irq_handler, 0,
+					       dev_name(&adev->dev), pi);
+			if (ret)
+				return ret;
+		} else {
+			break;
+		}
+	}
 
 	pi->pcfg.periph_id = adev->periphid;
 	ret = pl330_add(pi);
-- 
cgit 


From 24bc10cad3a76a4fc0f96a7220d4fe02379826d2 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 09:49:54 -0700
Subject: Bluetooth: Access RFCOMM session addresses through L2CAP channel

The L2CAP socket structure does not contain the address information
anymore. They need to be accessed through the L2CAP channel.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/rfcomm/core.c | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index ca957d34b0c8..27e936a7ddd9 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -641,13 +641,13 @@ static struct rfcomm_session *rfcomm_session_get(bdaddr_t *src, bdaddr_t *dst)
 {
 	struct rfcomm_session *s;
 	struct list_head *p, *n;
-	struct bt_sock *sk;
+	struct l2cap_chan *chan;
 	list_for_each_safe(p, n, &session_list) {
 		s = list_entry(p, struct rfcomm_session, list);
-		sk = bt_sk(s->sock->sk);
+		chan = l2cap_pi(s->sock->sk)->chan;
 
-		if ((!bacmp(src, BDADDR_ANY) || !bacmp(&sk->src, src)) &&
-				!bacmp(&sk->dst, dst))
+		if ((!bacmp(src, BDADDR_ANY) || !bacmp(&chan->src, src)) &&
+		    !bacmp(&chan->dst, dst))
 			return s;
 	}
 	return NULL;
@@ -732,11 +732,11 @@ failed:
 
 void rfcomm_session_getaddr(struct rfcomm_session *s, bdaddr_t *src, bdaddr_t *dst)
 {
-	struct sock *sk = s->sock->sk;
+	struct l2cap_chan *chan = l2cap_pi(s->sock->sk)->chan;
 	if (src)
-		bacpy(src, &bt_sk(sk)->src);
+		bacpy(src, &chan->src);
 	if (dst)
-		bacpy(dst, &bt_sk(sk)->dst);
+		bacpy(dst, &chan->dst);
 }
 
 /* ---- RFCOMM frame sending ---- */
@@ -2112,12 +2112,11 @@ static int rfcomm_dlc_debugfs_show(struct seq_file *f, void *x)
 	rfcomm_lock();
 
 	list_for_each_entry(s, &session_list, list) {
+		struct l2cap_chan *chan = l2cap_pi(s->sock->sk)->chan;
 		struct rfcomm_dlc *d;
 		list_for_each_entry(d, &s->dlcs, list) {
-			struct sock *sk = s->sock->sk;
-
 			seq_printf(f, "%pMR %pMR %ld %d %d %d %d\n",
-				   &bt_sk(sk)->src, &bt_sk(sk)->dst,
+				   &chan->src, &chan->dst,
 				   d->state, d->dlci, d->mtu,
 				   d->rx_credits, d->tx_credits);
 		}
-- 
cgit 


From 88f1fd27080013c8216bc6ed26e3c9a184a78588 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 09:49:55 -0700
Subject: Bluetooth: Access CMTP session addresses through L2CAP channel

The L2CAP socket structure does not contain the address information
anymore. They need to be accessed through the L2CAP channel.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/cmtp/core.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/bluetooth/cmtp/core.c b/net/bluetooth/cmtp/core.c
index e0a6ebf2baa6..67fe5e84e68f 100644
--- a/net/bluetooth/cmtp/core.c
+++ b/net/bluetooth/cmtp/core.c
@@ -340,20 +340,20 @@ int cmtp_add_connection(struct cmtp_connadd_req *req, struct socket *sock)
 
 	down_write(&cmtp_session_sem);
 
-	s = __cmtp_get_session(&bt_sk(sock->sk)->dst);
+	s = __cmtp_get_session(&l2cap_pi(sock->sk)->chan->dst);
 	if (s && s->state == BT_CONNECTED) {
 		err = -EEXIST;
 		goto failed;
 	}
 
-	bacpy(&session->bdaddr, &bt_sk(sock->sk)->dst);
+	bacpy(&session->bdaddr, &l2cap_pi(sock->sk)->chan->dst);
 
 	session->mtu = min_t(uint, l2cap_pi(sock->sk)->chan->omtu,
 					l2cap_pi(sock->sk)->chan->imtu);
 
 	BT_DBG("mtu %d", session->mtu);
 
-	sprintf(session->name, "%pMR", &bt_sk(sock->sk)->dst);
+	sprintf(session->name, "%pMR", &session->bdaddr);
 
 	session->sock  = sock;
 	session->state = BT_CONFIG;
-- 
cgit 


From 755b82aa2fdb62a61990f6c132df150abd9e9206 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 09:49:56 -0700
Subject: Bluetooth: Access HIDP session addresses through L2CAP channel

The L2CAP socket structure does not contain the address information
anymore. They need to be accessed through the L2CAP channel.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hidp/core.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index bdc35a7a7fee..292e619db896 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -767,10 +767,10 @@ static int hidp_setup_hid(struct hidp_session *session,
 	strncpy(hid->name, req->name, sizeof(req->name) - 1);
 
 	snprintf(hid->phys, sizeof(hid->phys), "%pMR",
-		 &bt_sk(session->ctrl_sock->sk)->src);
+		 &l2cap_pi(session->ctrl_sock->sk)->chan->src);
 
 	snprintf(hid->uniq, sizeof(hid->uniq), "%pMR",
-		 &bt_sk(session->ctrl_sock->sk)->dst);
+		 &l2cap_pi(session->ctrl_sock->sk)->chan->dst);
 
 	hid->dev.parent = &session->conn->hcon->dev;
 	hid->ll_driver = &hidp_hid_driver;
@@ -1283,23 +1283,29 @@ static int hidp_session_thread(void *arg)
 static int hidp_verify_sockets(struct socket *ctrl_sock,
 			       struct socket *intr_sock)
 {
+	struct l2cap_chan *ctrl_chan, *intr_chan;
 	struct bt_sock *ctrl, *intr;
 	struct hidp_session *session;
 
 	if (!l2cap_is_socket(ctrl_sock) || !l2cap_is_socket(intr_sock))
 		return -EINVAL;
 
+	ctrl_chan = l2cap_pi(ctrl_sock->sk)->chan;
+	intr_chan = l2cap_pi(intr_sock->sk)->chan;
+
+	if (bacmp(&ctrl_chan->src, &intr_chan->src) ||
+	    bacmp(&ctrl_chan->dst, &intr_chan->dst))
+		return -ENOTUNIQ;
+
 	ctrl = bt_sk(ctrl_sock->sk);
 	intr = bt_sk(intr_sock->sk);
 
-	if (bacmp(&ctrl->src, &intr->src) || bacmp(&ctrl->dst, &intr->dst))
-		return -ENOTUNIQ;
 	if (ctrl->sk.sk_state != BT_CONNECTED ||
 	    intr->sk.sk_state != BT_CONNECTED)
 		return -EBADFD;
 
 	/* early session check, we check again during session registration */
-	session = hidp_session_find(&ctrl->dst);
+	session = hidp_session_find(&ctrl_chan->dst);
 	if (session) {
 		hidp_session_put(session);
 		return -EEXIST;
@@ -1332,7 +1338,7 @@ int hidp_connection_add(struct hidp_connadd_req *req,
 	if (!conn)
 		return -EBADFD;
 
-	ret = hidp_session_new(&session, &bt_sk(ctrl_sock->sk)->dst, ctrl_sock,
+	ret = hidp_session_new(&session, &chan->dst, ctrl_sock,
 			       intr_sock, req, conn);
 	if (ret)
 		goto out_conn;
-- 
cgit 


From 65f53e9802dbfae0e5758a91793c3f5f8bece49b Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 09:49:57 -0700
Subject: Bluetooth: Access BNEP session addresses through L2CAP channel

The L2CAP socket structure does not contain the address information
anymore. They need to be accessed through the L2CAP channel.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/bnep/core.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/net/bluetooth/bnep/core.c b/net/bluetooth/bnep/core.c
index e430b1abcd2f..a841d3e776c5 100644
--- a/net/bluetooth/bnep/core.c
+++ b/net/bluetooth/bnep/core.c
@@ -32,6 +32,7 @@
 #include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/l2cap.h>
 #include <net/bluetooth/hci_core.h>
 
 #include "bnep.h"
@@ -510,20 +511,13 @@ static int bnep_session(void *arg)
 
 static struct device *bnep_get_device(struct bnep_session *session)
 {
-	bdaddr_t *src = &bt_sk(session->sock->sk)->src;
-	bdaddr_t *dst = &bt_sk(session->sock->sk)->dst;
-	struct hci_dev *hdev;
 	struct hci_conn *conn;
 
-	hdev = hci_get_route(dst, src);
-	if (!hdev)
+	conn = l2cap_pi(session->sock->sk)->chan->conn->hcon;
+	if (!conn)
 		return NULL;
 
-	conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst);
-
-	hci_dev_put(hdev);
-
-	return conn ? &conn->dev : NULL;
+	return &conn->dev;
 }
 
 static struct device_type bnep_type = {
@@ -539,8 +533,8 @@ int bnep_add_connection(struct bnep_connadd_req *req, struct socket *sock)
 
 	BT_DBG("");
 
-	baswap((void *) dst, &bt_sk(sock->sk)->dst);
-	baswap((void *) src, &bt_sk(sock->sk)->src);
+	baswap((void *) dst, &l2cap_pi(sock->sk)->chan->dst);
+	baswap((void *) src, &l2cap_pi(sock->sk)->chan->src);
 
 	/* session struct allocated as private part of net_device */
 	dev = alloc_netdev(sizeof(struct bnep_session),
-- 
cgit 


From 041987cff6fb7d2e7acd5897390ad0eef575ed39 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 10:15:22 -0700
Subject: Bluetooth: Use SCO addresses from HCI connection directly

Instead of storing a pointer to the addresses for the HCI device
and HCI connection, use them directly. With the recent changes
to address tracking of HCI connections, this becomes simple.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/sco.h |  3 ---
 net/bluetooth/sco.c         | 20 ++++++++------------
 2 files changed, 8 insertions(+), 15 deletions(-)

diff --git a/include/net/bluetooth/sco.h b/include/net/bluetooth/sco.h
index e252a31ee6b6..94703a25d1c2 100644
--- a/include/net/bluetooth/sco.h
+++ b/include/net/bluetooth/sco.h
@@ -55,9 +55,6 @@ struct sco_conninfo {
 struct sco_conn {
 	struct hci_conn	*hcon;
 
-	bdaddr_t	*dst;
-	bdaddr_t	*src;
-
 	spinlock_t	lock;
 	struct sock	*sk;
 
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 96bd388d93a4..2cc8f425613a 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -92,9 +92,6 @@ static struct sco_conn *sco_conn_add(struct hci_conn *hcon)
 	hcon->sco_data = conn;
 	conn->hcon = hcon;
 
-	conn->src = &hdev->bdaddr;
-	conn->dst = &hcon->dst;
-
 	if (hdev->sco_mtu > 0)
 		conn->mtu = hdev->sco_mtu;
 	else
@@ -156,16 +153,14 @@ static int sco_chan_add(struct sco_conn *conn, struct sock *sk,
 
 static int sco_connect(struct sock *sk)
 {
-	bdaddr_t *src = &bt_sk(sk)->src;
-	bdaddr_t *dst = &bt_sk(sk)->dst;
 	struct sco_conn *conn;
 	struct hci_conn *hcon;
 	struct hci_dev  *hdev;
 	int err, type;
 
-	BT_DBG("%pMR -> %pMR", src, dst);
+	BT_DBG("%pMR -> %pMR", &bt_sk(sk)->src, &bt_sk(sk)->dst);
 
-	hdev = hci_get_route(dst, src);
+	hdev = hci_get_route(&bt_sk(sk)->dst, &bt_sk(sk)->src);
 	if (!hdev)
 		return -EHOSTUNREACH;
 
@@ -182,7 +177,8 @@ static int sco_connect(struct sock *sk)
 		goto done;
 	}
 
-	hcon = hci_connect_sco(hdev, type, dst, sco_pi(sk)->setting);
+	hcon = hci_connect_sco(hdev, type, &bt_sk(sk)->dst,
+			       sco_pi(sk)->setting);
 	if (IS_ERR(hcon)) {
 		err = PTR_ERR(hcon);
 		goto done;
@@ -196,7 +192,7 @@ static int sco_connect(struct sock *sk)
 	}
 
 	/* Update source addr of the socket */
-	bacpy(src, conn->src);
+	bacpy(&bt_sk(sk)->src, &hcon->src);
 
 	err = sco_chan_add(conn, sk, NULL);
 	if (err)
@@ -999,7 +995,7 @@ static void sco_conn_ready(struct sco_conn *conn)
 	} else {
 		sco_conn_lock(conn);
 
-		parent = sco_get_sock_listen(conn->src);
+		parent = sco_get_sock_listen(&conn->hcon->src);
 		if (!parent) {
 			sco_conn_unlock(conn);
 			return;
@@ -1017,8 +1013,8 @@ static void sco_conn_ready(struct sco_conn *conn)
 
 		sco_sock_init(sk, parent);
 
-		bacpy(&bt_sk(sk)->src, conn->src);
-		bacpy(&bt_sk(sk)->dst, conn->dst);
+		bacpy(&bt_sk(sk)->src, &conn->hcon->src);
+		bacpy(&bt_sk(sk)->dst, &conn->hcon->dst);
 
 		hci_conn_hold(conn->hcon);
 		__sco_chan_add(conn, sk, parent);
-- 
cgit 


From eea963641bf548bda164b92aa20ccda56c5cf349 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 10:34:01 -0700
Subject: Bluetooth: Store SCO address information in its own socket structure

The address information of SCO sockets should be stored in its own
socket structure. Trying to generalize them is not helpful since
different transports have different address types.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/sco.h |  2 ++
 net/bluetooth/sco.c         | 36 ++++++++++++++++++------------------
 2 files changed, 20 insertions(+), 18 deletions(-)

diff --git a/include/net/bluetooth/sco.h b/include/net/bluetooth/sco.h
index 94703a25d1c2..2019d1a0996a 100644
--- a/include/net/bluetooth/sco.h
+++ b/include/net/bluetooth/sco.h
@@ -69,6 +69,8 @@ struct sco_conn {
 
 struct sco_pinfo {
 	struct bt_sock	bt;
+	bdaddr_t	src;
+	bdaddr_t	dst;
 	__u32		flags;
 	__u16		setting;
 	struct sco_conn	*conn;
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 2cc8f425613a..a92aebac56ca 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -158,9 +158,9 @@ static int sco_connect(struct sock *sk)
 	struct hci_dev  *hdev;
 	int err, type;
 
-	BT_DBG("%pMR -> %pMR", &bt_sk(sk)->src, &bt_sk(sk)->dst);
+	BT_DBG("%pMR -> %pMR", &sco_pi(sk)->src, &sco_pi(sk)->dst);
 
-	hdev = hci_get_route(&bt_sk(sk)->dst, &bt_sk(sk)->src);
+	hdev = hci_get_route(&sco_pi(sk)->dst, &sco_pi(sk)->src);
 	if (!hdev)
 		return -EHOSTUNREACH;
 
@@ -177,7 +177,7 @@ static int sco_connect(struct sock *sk)
 		goto done;
 	}
 
-	hcon = hci_connect_sco(hdev, type, &bt_sk(sk)->dst,
+	hcon = hci_connect_sco(hdev, type, &sco_pi(sk)->dst,
 			       sco_pi(sk)->setting);
 	if (IS_ERR(hcon)) {
 		err = PTR_ERR(hcon);
@@ -192,7 +192,7 @@ static int sco_connect(struct sock *sk)
 	}
 
 	/* Update source addr of the socket */
-	bacpy(&bt_sk(sk)->src, &hcon->src);
+	bacpy(&sco_pi(sk)->src, &hcon->src);
 
 	err = sco_chan_add(conn, sk, NULL);
 	if (err)
@@ -266,7 +266,7 @@ static struct sock *__sco_get_sock_listen_by_addr(bdaddr_t *ba)
 		if (sk->sk_state != BT_LISTEN)
 			continue;
 
-		if (!bacmp(&bt_sk(sk)->src, ba))
+		if (!bacmp(&sco_pi(sk)->src, ba))
 			return sk;
 	}
 
@@ -287,11 +287,11 @@ static struct sock *sco_get_sock_listen(bdaddr_t *src)
 			continue;
 
 		/* Exact match. */
-		if (!bacmp(&bt_sk(sk)->src, src))
+		if (!bacmp(&sco_pi(sk)->src, src))
 			break;
 
 		/* Closest match */
-		if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY))
+		if (!bacmp(&sco_pi(sk)->src, BDADDR_ANY))
 			sk1 = sk;
 	}
 
@@ -471,7 +471,7 @@ static int sco_sock_bind(struct socket *sock, struct sockaddr *addr, int addr_le
 		goto done;
 	}
 
-	bacpy(&bt_sk(sk)->src, &sa->sco_bdaddr);
+	bacpy(&sco_pi(sk)->src, &sa->sco_bdaddr);
 
 	sk->sk_state = BT_BOUND;
 
@@ -501,7 +501,7 @@ static int sco_sock_connect(struct socket *sock, struct sockaddr *addr, int alen
 	lock_sock(sk);
 
 	/* Set destination address and psm */
-	bacpy(&bt_sk(sk)->dst, &sa->sco_bdaddr);
+	bacpy(&sco_pi(sk)->dst, &sa->sco_bdaddr);
 
 	err = sco_connect(sk);
 	if (err)
@@ -518,7 +518,7 @@ done:
 static int sco_sock_listen(struct socket *sock, int backlog)
 {
 	struct sock *sk = sock->sk;
-	bdaddr_t *src = &bt_sk(sk)->src;
+	bdaddr_t *src = &sco_pi(sk)->src;
 	int err = 0;
 
 	BT_DBG("sk %p backlog %d", sk, backlog);
@@ -622,9 +622,9 @@ static int sco_sock_getname(struct socket *sock, struct sockaddr *addr, int *len
 	*len = sizeof(struct sockaddr_sco);
 
 	if (peer)
-		bacpy(&sa->sco_bdaddr, &bt_sk(sk)->dst);
+		bacpy(&sa->sco_bdaddr, &sco_pi(sk)->dst);
 	else
-		bacpy(&sa->sco_bdaddr, &bt_sk(sk)->src);
+		bacpy(&sa->sco_bdaddr, &sco_pi(sk)->src);
 
 	return 0;
 }
@@ -1013,8 +1013,8 @@ static void sco_conn_ready(struct sco_conn *conn)
 
 		sco_sock_init(sk, parent);
 
-		bacpy(&bt_sk(sk)->src, &conn->hcon->src);
-		bacpy(&bt_sk(sk)->dst, &conn->hcon->dst);
+		bacpy(&sco_pi(sk)->src, &conn->hcon->src);
+		bacpy(&sco_pi(sk)->dst, &conn->hcon->dst);
 
 		hci_conn_hold(conn->hcon);
 		__sco_chan_add(conn, sk, parent);
@@ -1047,8 +1047,8 @@ int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags)
 		if (sk->sk_state != BT_LISTEN)
 			continue;
 
-		if (!bacmp(&bt_sk(sk)->src, &hdev->bdaddr) ||
-		    !bacmp(&bt_sk(sk)->src, BDADDR_ANY)) {
+		if (!bacmp(&sco_pi(sk)->src, &hdev->bdaddr) ||
+		    !bacmp(&sco_pi(sk)->src, BDADDR_ANY)) {
 			lm |= HCI_LM_ACCEPT;
 
 			if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags))
@@ -1107,8 +1107,8 @@ static int sco_debugfs_show(struct seq_file *f, void *p)
 	read_lock(&sco_sk_list.lock);
 
 	sk_for_each(sk, &sco_sk_list.head) {
-		seq_printf(f, "%pMR %pMR %d\n", &bt_sk(sk)->src,
-			   &bt_sk(sk)->dst, sk->sk_state);
+		seq_printf(f, "%pMR %pMR %d\n", &sco_pi(sk)->src,
+			   &sco_pi(sk)->dst, sk->sk_state);
 	}
 
 	read_unlock(&sco_sk_list.lock);
-- 
cgit 


From 94a86df01082557e2de45865e538d7fb6c46231c Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 10:34:02 -0700
Subject: Bluetooth: Store RFCOMM address information in its own socket
 structure

The address information of RFCOMM sockets should be stored in its
own socket structure. Trying to generalize them is not helpful since
different transports have different address types.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/rfcomm.h |  2 ++
 net/bluetooth/rfcomm/sock.c    | 28 +++++++++++++++-------------
 2 files changed, 17 insertions(+), 13 deletions(-)

diff --git a/include/net/bluetooth/rfcomm.h b/include/net/bluetooth/rfcomm.h
index 7afd4199d6b6..3588f48bfd35 100644
--- a/include/net/bluetooth/rfcomm.h
+++ b/include/net/bluetooth/rfcomm.h
@@ -300,6 +300,8 @@ struct rfcomm_conninfo {
 
 struct rfcomm_pinfo {
 	struct bt_sock bt;
+	bdaddr_t src;
+	bdaddr_t dst;
 	struct rfcomm_dlc   *dlc;
 	u8     channel;
 	u8     sec_level;
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 072938dc527d..df17276eb32b 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -87,7 +87,8 @@ static void rfcomm_sk_state_change(struct rfcomm_dlc *d, int err)
 		parent->sk_data_ready(parent, 0);
 	} else {
 		if (d->state == BT_CONNECTED)
-			rfcomm_session_getaddr(d->session, &bt_sk(sk)->src, NULL);
+			rfcomm_session_getaddr(d->session,
+					       &rfcomm_pi(sk)->src, NULL);
 		sk->sk_state_change(sk);
 	}
 
@@ -110,7 +111,7 @@ static struct sock *__rfcomm_get_sock_by_addr(u8 channel, bdaddr_t *src)
 
 	sk_for_each(sk, &rfcomm_sk_list.head) {
 		if (rfcomm_pi(sk)->channel == channel &&
-				!bacmp(&bt_sk(sk)->src, src))
+				!bacmp(&rfcomm_pi(sk)->src, src))
 			break;
 	}
 
@@ -132,11 +133,11 @@ static struct sock *rfcomm_get_sock_by_channel(int state, u8 channel, bdaddr_t *
 
 		if (rfcomm_pi(sk)->channel == channel) {
 			/* Exact match. */
-			if (!bacmp(&bt_sk(sk)->src, src))
+			if (!bacmp(&rfcomm_pi(sk)->src, src))
 				break;
 
 			/* Closest match */
-			if (!bacmp(&bt_sk(sk)->src, BDADDR_ANY))
+			if (!bacmp(&rfcomm_pi(sk)->src, BDADDR_ANY))
 				sk1 = sk;
 		}
 	}
@@ -355,7 +356,7 @@ static int rfcomm_sock_bind(struct socket *sock, struct sockaddr *addr, int addr
 		err = -EADDRINUSE;
 	} else {
 		/* Save source address */
-		bacpy(&bt_sk(sk)->src, &sa->rc_bdaddr);
+		bacpy(&rfcomm_pi(sk)->src, &sa->rc_bdaddr);
 		rfcomm_pi(sk)->channel = sa->rc_channel;
 		sk->sk_state = BT_BOUND;
 	}
@@ -393,13 +394,14 @@ static int rfcomm_sock_connect(struct socket *sock, struct sockaddr *addr, int a
 	}
 
 	sk->sk_state = BT_CONNECT;
-	bacpy(&bt_sk(sk)->dst, &sa->rc_bdaddr);
+	bacpy(&rfcomm_pi(sk)->dst, &sa->rc_bdaddr);
 	rfcomm_pi(sk)->channel = sa->rc_channel;
 
 	d->sec_level = rfcomm_pi(sk)->sec_level;
 	d->role_switch = rfcomm_pi(sk)->role_switch;
 
-	err = rfcomm_dlc_open(d, &bt_sk(sk)->src, &sa->rc_bdaddr, sa->rc_channel);
+	err = rfcomm_dlc_open(d, &rfcomm_pi(sk)->src, &sa->rc_bdaddr,
+			      sa->rc_channel);
 	if (!err)
 		err = bt_sock_wait_state(sk, BT_CONNECTED,
 				sock_sndtimeo(sk, flags & O_NONBLOCK));
@@ -429,7 +431,7 @@ static int rfcomm_sock_listen(struct socket *sock, int backlog)
 	}
 
 	if (!rfcomm_pi(sk)->channel) {
-		bdaddr_t *src = &bt_sk(sk)->src;
+		bdaddr_t *src = &rfcomm_pi(sk)->src;
 		u8 channel;
 
 		err = -EINVAL;
@@ -530,9 +532,9 @@ static int rfcomm_sock_getname(struct socket *sock, struct sockaddr *addr, int *
 	sa->rc_family  = AF_BLUETOOTH;
 	sa->rc_channel = rfcomm_pi(sk)->channel;
 	if (peer)
-		bacpy(&sa->rc_bdaddr, &bt_sk(sk)->dst);
+		bacpy(&sa->rc_bdaddr, &rfcomm_pi(sk)->dst);
 	else
-		bacpy(&sa->rc_bdaddr, &bt_sk(sk)->src);
+		bacpy(&sa->rc_bdaddr, &rfcomm_pi(sk)->src);
 
 	*len = sizeof(struct sockaddr_rc);
 	return 0;
@@ -951,8 +953,8 @@ int rfcomm_connect_ind(struct rfcomm_session *s, u8 channel, struct rfcomm_dlc *
 	bt_sock_reclassify_lock(sk, BTPROTO_RFCOMM);
 
 	rfcomm_sock_init(sk, parent);
-	bacpy(&bt_sk(sk)->src, &src);
-	bacpy(&bt_sk(sk)->dst, &dst);
+	bacpy(&rfcomm_pi(sk)->src, &src);
+	bacpy(&rfcomm_pi(sk)->dst, &dst);
 	rfcomm_pi(sk)->channel = channel;
 
 	sk->sk_state = BT_CONFIG;
@@ -979,7 +981,7 @@ static int rfcomm_sock_debugfs_show(struct seq_file *f, void *p)
 
 	sk_for_each(sk, &rfcomm_sk_list.head) {
 		seq_printf(f, "%pMR %pMR %d %d\n",
-			   &bt_sk(sk)->src, &bt_sk(sk)->dst,
+			   &rfcomm_pi(sk)->src, &rfcomm_pi(sk)->dst,
 			   sk->sk_state, rfcomm_pi(sk)->channel);
 	}
 
-- 
cgit 


From 5f6cd79f477743cab98fd49feb03a39e0138b32f Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 10:34:03 -0700
Subject: Bluetooth: Remove src and dst fields from bt_sock structure

Every socket protocol now stores its own address information. So
just remove the generic src and dst fields since they are no longer
needed.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/bluetooth.h | 2 --
 net/bluetooth/af_bluetooth.c      | 4 +---
 2 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 5fd510675cfa..1d6e484e08ef 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -218,8 +218,6 @@ void baswap(bdaddr_t *dst, bdaddr_t *src);
 
 struct bt_sock {
 	struct sock sk;
-	bdaddr_t    src;
-	bdaddr_t    dst;
 	struct list_head accept_q;
 	struct sock *parent;
 	unsigned long flags;
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index e6e1278dca89..9c7e4edc6504 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -617,15 +617,13 @@ static int bt_seq_show(struct seq_file *seq, void *v)
 		struct bt_sock *bt = bt_sk(sk);
 
 		seq_printf(seq,
-			   "%pK %-6d %-6u %-6u %-6u %-6lu %pMR %pMR %-6lu",
+			   "%pK %-6d %-6u %-6u %-6u %-6lu %-6lu",
 			   sk,
 			   atomic_read(&sk->sk_refcnt),
 			   sk_rmem_alloc_get(sk),
 			   sk_wmem_alloc_get(sk),
 			   from_kuid(seq_user_ns(seq), sock_i_uid(sk)),
 			   sock_i_ino(sk),
-			   &bt->src,
-			   &bt->dst,
 			   bt->parent? sock_i_ino(bt->parent): 0LU);
 
 		if (l->custom_seq_show) {
-- 
cgit 


From 84b34d9867f826caecaab4444c86438935b7eb2b Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 11:36:07 -0700
Subject: Bluetooth: Use l2cap_pi(sk) directly where possible

There are few places where it makes sense to use l2cap_pi(sk) directly
instead of assigning it to temporary structure.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/l2cap_sock.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 6262e23b71a4..8fe9f497c645 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -976,13 +976,12 @@ static struct l2cap_chan *l2cap_sock_new_connection_cb(struct l2cap_chan *chan)
 
 static int l2cap_sock_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
 {
-	int err;
 	struct sock *sk = chan->data;
-	struct l2cap_pinfo *pi = l2cap_pi(sk);
+	int err;
 
 	lock_sock(sk);
 
-	if (pi->rx_busy_skb) {
+	if (l2cap_pi(sk)->rx_busy_skb) {
 		err = -ENOMEM;
 		goto done;
 	}
@@ -998,9 +997,9 @@ static int l2cap_sock_recv_cb(struct l2cap_chan *chan, struct sk_buff *skb)
 	 * acked and reassembled until there is buffer space
 	 * available.
 	 */
-	if (err < 0 && pi->chan->mode == L2CAP_MODE_ERTM) {
-		pi->rx_busy_skb = skb;
-		l2cap_chan_busy(pi->chan, 1);
+	if (err < 0 && chan->mode == L2CAP_MODE_ERTM) {
+		l2cap_pi(sk)->rx_busy_skb = skb;
+		l2cap_chan_busy(chan, 1);
 		err = 0;
 	}
 
@@ -1128,6 +1127,7 @@ static void l2cap_sock_destruct(struct sock *sk)
 
 	if (l2cap_pi(sk)->chan)
 		l2cap_chan_put(l2cap_pi(sk)->chan);
+
 	if (l2cap_pi(sk)->rx_busy_skb) {
 		kfree_skb(l2cap_pi(sk)->rx_busy_skb);
 		l2cap_pi(sk)->rx_busy_skb = NULL;
@@ -1139,8 +1139,7 @@ static void l2cap_sock_destruct(struct sock *sk)
 
 static void l2cap_sock_init(struct sock *sk, struct sock *parent)
 {
-	struct l2cap_pinfo *pi = l2cap_pi(sk);
-	struct l2cap_chan *chan = pi->chan;
+	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
 
 	BT_DBG("sk %p", sk);
 
-- 
cgit 


From d97636980f6ba7344c8aa6fa349b9059c60ee478 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 12:55:28 -0700
Subject: Bluetooth: Add support for per socket msg_name callback

This allows to add a per socket msg_name callback that can be used
for updating the msg_name information for recvmsg() system calls.

This feature is used by another patch to support address information
on L2CAP connectionless channels.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/bluetooth.h |  1 +
 net/bluetooth/af_bluetooth.c      | 15 +++++++++++----
 2 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 1d6e484e08ef..896aad80bc4d 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -221,6 +221,7 @@ struct bt_sock {
 	struct list_head accept_q;
 	struct sock *parent;
 	unsigned long flags;
+	void (*skb_msg_name)(struct sk_buff *, void *, int *);
 };
 
 enum {
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 9c7e4edc6504..f0aadeac4455 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -221,12 +221,12 @@ int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 	if (flags & (MSG_OOB))
 		return -EOPNOTSUPP;
 
-	msg->msg_namelen = 0;
-
 	skb = skb_recv_datagram(sk, flags, noblock, &err);
 	if (!skb) {
-		if (sk->sk_shutdown & RCV_SHUTDOWN)
+		if (sk->sk_shutdown & RCV_SHUTDOWN) {
+			msg->msg_namelen = 0;
 			return 0;
+		}
 		return err;
 	}
 
@@ -238,9 +238,16 @@ int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 
 	skb_reset_transport_header(skb);
 	err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
-	if (err == 0)
+	if (err == 0) {
 		sock_recv_ts_and_drops(msg, sk, skb);
 
+		if (bt_sk(sk)->skb_msg_name)
+			bt_sk(sk)->skb_msg_name(skb, msg->msg_name,
+						&msg->msg_namelen);
+		else
+			msg->msg_namelen = 0;
+	}
+
 	skb_free_datagram(sk, skb);
 
 	return err ? : copied;
-- 
cgit 


From 2edf870d198adeb43d5a2a5ddfa7e3cea4fc999b Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 12:55:29 -0700
Subject: Bluetooth: Provide msg_name callback for L2CAP connectionless
 channels

The L2CAP connectionless channels use SOCK_DGRAM and recvmsg() and need
to receive the remote BD_ADDR and PSM information via msg_name from
the recvmsg() system call.

So in case the L2CAP socket is for connectionless channels, provide
a msg_name callback that can update the data. Also store the remote
BD_ADDR and PSM in the skb so it can be extracted later on.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/bluetooth.h |  2 ++
 net/bluetooth/l2cap_core.c        |  4 ++++
 net/bluetooth/l2cap_sock.c        | 15 ++++++++++++++-
 3 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 896aad80bc4d..bf2ddffdae2d 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -284,6 +284,8 @@ struct bt_skb_cb {
 	__u8 force_active;
 	struct l2cap_ctrl control;
 	struct hci_req_ctrl req;
+	bdaddr_t bdaddr;
+	__le16 psm;
 };
 #define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))
 
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 769c379b3eeb..f6b5f94cbf39 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -6459,6 +6459,10 @@ static void l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm,
 	if (chan->imtu < skb->len)
 		goto drop;
 
+	/* Store remote BD_ADDR and PSM for msg_name */
+	bacpy(&bt_cb(skb)->bdaddr, &conn->hcon->dst);
+	bt_cb(skb)->psm = psm;
+
 	if (!chan->ops->recv(chan, skb))
 		return;
 
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 8fe9f497c645..f1b462faf649 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1137,6 +1137,19 @@ static void l2cap_sock_destruct(struct sock *sk)
 	skb_queue_purge(&sk->sk_write_queue);
 }
 
+static void l2cap_skb_msg_name(struct sk_buff *skb, void *msg_name,
+			       int *msg_namelen)
+{
+	struct sockaddr_l2 *la = (struct sockaddr_l2 *) msg_name;
+
+	memset(la, 0, sizeof(struct sockaddr_l2));
+	la->l2_family = AF_BLUETOOTH;
+	la->l2_psm = bt_cb(skb)->psm;
+	bacpy(&la->l2_bdaddr, &bt_cb(skb)->bdaddr);
+
+	*msg_namelen = sizeof(struct sockaddr_l2);
+}
+
 static void l2cap_sock_init(struct sock *sk, struct sock *parent)
 {
 	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
@@ -1163,13 +1176,13 @@ static void l2cap_sock_init(struct sock *sk, struct sock *parent)
 
 		security_sk_clone(parent, sk);
 	} else {
-
 		switch (sk->sk_type) {
 		case SOCK_RAW:
 			chan->chan_type = L2CAP_CHAN_RAW;
 			break;
 		case SOCK_DGRAM:
 			chan->chan_type = L2CAP_CHAN_CONN_LESS;
+			bt_sk(sk)->skb_msg_name = l2cap_skb_msg_name;
 			break;
 		case SOCK_SEQPACKET:
 		case SOCK_STREAM:
-- 
cgit 


From 89951f2245e5c31d6b74dea1570db716175a74fe Mon Sep 17 00:00:00 2001
From: Levente Kurusa <levex@linux.com>
Date: Tue, 1 Oct 2013 19:56:48 +0200
Subject: ata_piix: minor typo and a printk fix

The patch fixes a printk() being cut in half, some typos
and a change in comments to better reflect the specs.

Signed-off-by: Levente Kurusa <levex@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 drivers/ata/ata_piix.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 513ad7ed0c99..6334c8d7c3f1 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -100,7 +100,7 @@
 
 enum {
 	PIIX_IOCFG		= 0x54, /* IDE I/O configuration register */
-	ICH5_PMR		= 0x90, /* port mapping register */
+	ICH5_PMR		= 0x90, /* address map register */
 	ICH5_PCS		= 0x92,	/* port control and status */
 	PIIX_SIDPR_BAR		= 5,
 	PIIX_SIDPR_LEN		= 16,
@@ -233,7 +233,7 @@ static const struct pci_device_id piix_pci_tbl[] = {
 	  PCI_CLASS_STORAGE_IDE << 8, 0xffff00, ich6m_sata },
 	/* 82801GB/GR/GH (ICH7, identical to ICH6) */
 	{ 0x8086, 0x27c0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata },
-	/* 2801GBM/GHM (ICH7M, identical to ICH6M) */
+	/* 82801GBM/GHM (ICH7M, identical to ICH6M)  */
 	{ 0x8086, 0x27c4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6m_sata },
 	/* Enterprise Southbridge 2 (631xESB/632xESB) */
 	{ 0x8086, 0x2680, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata },
@@ -517,7 +517,7 @@ static int ich_pata_cable_detect(struct ata_port *ap)
 	const struct ich_laptop *lap = &ich_laptop[0];
 	u8 mask;
 
-	/* Check for specials - Acer Aspire 5602WLMi */
+	/* Check for specials */
 	while (lap->device) {
 		if (lap->device == pdev->device &&
 		    lap->subvendor == pdev->subsystem_vendor &&
@@ -1366,38 +1366,39 @@ static const int *piix_init_sata_map(struct pci_dev *pdev,
 	const int *map;
 	int i, invalid_map = 0;
 	u8 map_value;
+	char buf[32];
+	char *p = buf, *end = buf + sizeof(buf);
 
 	pci_read_config_byte(pdev, ICH5_PMR, &map_value);
 
 	map = map_db->map[map_value & map_db->mask];
 
-	dev_info(&pdev->dev, "MAP [");
 	for (i = 0; i < 4; i++) {
 		switch (map[i]) {
 		case RV:
 			invalid_map = 1;
-			pr_cont(" XX");
+			p += scnprintf(p, end - p, " XX");
 			break;
 
 		case NA:
-			pr_cont(" --");
+			p += scnprintf(p, end - p, " --");
 			break;
 
 		case IDE:
 			WARN_ON((i & 1) || map[i + 1] != IDE);
 			pinfo[i / 2] = piix_port_info[ich_pata_100];
 			i++;
-			pr_cont(" IDE IDE");
+			p += scnprintf(p, end - p, " IDE IDE");
 			break;
 
 		default:
-			pr_cont(" P%d", map[i]);
+			p += scnprintf(p, end - p, " P%d", map[i]);
 			if (i & 1)
 				pinfo[i / 2].flags |= ATA_FLAG_SLAVE_POSS;
 			break;
 		}
 	}
-	pr_cont(" ]\n");
+	dev_info(&pdev->dev, "MAP [%s ]\n", buf);
 
 	if (invalid_map)
 		dev_err(&pdev->dev, "invalid MAP value %u\n", map_value);
-- 
cgit 


From dcbc729eef18b93e689d853aa8ccc41549e7fd58 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sun, 13 Oct 2013 13:09:02 -0700
Subject: Bluetooth: Increase minor version of core module

There have been a lot of changes in the core Bluetooth handling
lately. So it is a good idea to increase the module version.

The module version is not used anywhere, but it makes debugging
a little bit simpler if versions can be distinguished.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/af_bluetooth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index f0aadeac4455..61501c9b34f6 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -30,7 +30,7 @@
 #include <net/bluetooth/bluetooth.h>
 #include <linux/proc_fs.h>
 
-#define VERSION "2.16"
+#define VERSION "2.17"
 
 /* Bluetooth sockets */
 #define BT_MAX_PROTO	8
-- 
cgit 


From a0393713530c49697e49ce0456c039228ab7facb Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 29 Mar 2013 13:54:50 -0700
Subject: hwmon: Remove unnecessary semicolons

Semicolons after closing } of conditional blocks are not needed
and can be removed.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
---
 drivers/hwmon/adm1026.c |  6 +++---
 drivers/hwmon/asc7621.c | 12 ++++++------
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/hwmon/adm1026.c b/drivers/hwmon/adm1026.c
index 3a6d9ef1c16c..b3498acb9ab4 100644
--- a/drivers/hwmon/adm1026.c
+++ b/drivers/hwmon/adm1026.c
@@ -616,7 +616,7 @@ static struct adm1026_data *adm1026_update_device(struct device *dev)
 		data->gpio = gpio;
 
 		data->last_reading = jiffies;
-	}; /* last_reading */
+	}	/* last_reading */
 
 	if (!data->valid ||
 	    time_after(jiffies, data->last_config + ADM1026_CONFIG_INTERVAL)) {
@@ -700,7 +700,7 @@ static struct adm1026_data *adm1026_update_device(struct device *dev)
 		}
 
 		data->last_config = jiffies;
-	}; /* last_config */
+	}	/* last_config */
 
 	data->valid = 1;
 	mutex_unlock(&data->update_lock);
@@ -1791,7 +1791,7 @@ static int adm1026_detect(struct i2c_client *client,
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
 		/* We need to be able to do byte I/O */
 		return -ENODEV;
-	};
+	}
 
 	/* Now, we do the remaining detection. */
 
diff --git a/drivers/hwmon/asc7621.c b/drivers/hwmon/asc7621.c
index 3ad9d849add2..8d9f2a0e8efe 100644
--- a/drivers/hwmon/asc7621.c
+++ b/drivers/hwmon/asc7621.c
@@ -138,7 +138,7 @@ static inline u8 read_byte(struct i2c_client *client, u8 reg)
 		dev_err(&client->dev,
 			"Unable to read from register 0x%02x.\n", reg);
 		return 0;
-	};
+	}
 	return res & 0xff;
 }
 
@@ -149,7 +149,7 @@ static inline int write_byte(struct i2c_client *client, u8 reg, u8 data)
 		dev_err(&client->dev,
 			"Unable to write value 0x%02x to register 0x%02x.\n",
 			data, reg);
-	};
+	}
 	return res;
 }
 
@@ -1030,7 +1030,7 @@ static struct asc7621_data *asc7621_update_device(struct device *dev)
 			}
 		}
 		data->last_high_reading = jiffies;
-	};			/* last_reading */
+	}			/* last_reading */
 
 	/* Read all the low priority registers. */
 
@@ -1044,7 +1044,7 @@ static struct asc7621_data *asc7621_update_device(struct device *dev)
 			}
 		}
 		data->last_low_reading = jiffies;
-	};			/* last_reading */
+	}			/* last_reading */
 
 	data->valid = 1;
 
@@ -1084,11 +1084,11 @@ static void asc7621_init_client(struct i2c_client *client)
 		dev_err(&client->dev,
 			"Client (%d,0x%02x) config is locked.\n",
 			i2c_adapter_id(client->adapter), client->addr);
-	};
+	}
 	if (!(value & 0x04)) {
 		dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n",
 			i2c_adapter_id(client->adapter), client->addr);
-	};
+	}
 
 /*
  * Start monitoring
-- 
cgit 


From e8ab508c27be9868411b6578507e93e02bdb8cdb Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Wed, 11 Sep 2013 10:32:18 -0700
Subject: hwmon: (nct6775) Use return value from find_temp_source

smatch complains that we don't use the return value from find_temp_source().
Valid point, only find_temp_source() doesn't return a valid error code.
Have it return a valid error code and use it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/nct6775.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index 6eb03ce2cff4..de57e0d60d23 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -1545,7 +1545,7 @@ static int find_temp_source(struct nct6775_data *data, int index, int count)
 		if (src == source)
 			return nr;
 	}
-	return -1;
+	return -ENODEV;
 }
 
 static ssize_t
@@ -1644,7 +1644,7 @@ store_temp_beep(struct device *dev, struct device_attribute *attr,
 
 	nr = find_temp_source(data, sattr->index, data->num_temp_beeps);
 	if (nr < 0)
-		return -ENODEV;
+		return nr;
 
 	bit = data->BEEP_BITS[nr + TEMP_ALARM_BASE];
 	regindex = bit >> 3;
-- 
cgit 


From 45a5b3a183b43e07b7d1eaf1ef7c00fc87511b1b Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Wed, 11 Sep 2013 10:35:47 -0700
Subject: hwmon: (nct6775) Check array index when accessing temp_offset

smatch complains about a potential out-of-bounds access to the
temp_offset array. That doesn't happen in practice, but it doesn't
hurt to add an explicit check either. This prevents potential problems
in the future (for example if the number of 'fixed' temperature
sensors is increased to add support for another chip).

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/nct6775.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index de57e0d60d23..b82fad487777 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -1457,7 +1457,8 @@ static struct nct6775_data *nct6775_update_device(struct device *dev)
 					  = nct6775_read_temp(data,
 						data->reg_temp[j][i]);
 			}
-			if (!(data->have_temp_fixed & (1 << i)))
+			if (i >= NUM_TEMP_FIXED ||
+			    !(data->have_temp_fixed & (1 << i)))
 				continue;
 			data->temp_offset[i]
 			  = nct6775_read_value(data, data->REG_TEMP_OFFSET[i]);
-- 
cgit 


From ae02e7418ffa2ba5d927869ef9eab4c87549d8e9 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 13 Sep 2013 10:25:53 -0700
Subject: hwmon: (mc13783-adc) Increase size of name string

smatch complains about

mc13783_adc_probe() error: snprintf() chops off the last chars of
'id->name': 20 +vs 10

Use PLATFORM_NAME_SIZE instead of '10' as size when declaring
the name variable.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/mc13783-adc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/mc13783-adc.c b/drivers/hwmon/mc13783-adc.c
index 982d8622c09b..ae00e60d856c 100644
--- a/drivers/hwmon/mc13783-adc.c
+++ b/drivers/hwmon/mc13783-adc.c
@@ -37,7 +37,7 @@
 struct mc13783_adc_priv {
 	struct mc13xxx *mc13xxx;
 	struct device *hwmon_dev;
-	char name[10];
+	char name[PLATFORM_NAME_SIZE];
 };
 
 static ssize_t mc13783_adc_show_name(struct device *dev, struct device_attribute
-- 
cgit 


From af78fdf4a61827bed7f0fcbba8cc9ae393a3ad82 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 13 Sep 2013 10:31:38 -0700
Subject: hwmon: (pmbus) Don't unnecessarily crash the kernel

pmbus code currently crashes the kernel if it detects an internal
implementation error. While the detected condition suggests that there
is a bug in the code, it is hardly fatal. Therefore, it should not
trigger a crash. Replace BUG() with WARN().

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/pmbus/pmbus_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index 9319fcf142d9..871cf64d2996 100644
--- a/drivers/hwmon/pmbus/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -686,7 +686,7 @@ static int pmbus_get_boolean(struct pmbus_data *data, struct pmbus_boolean *b,
 	if (!s1 && !s2) {
 		ret = !!regval;
 	} else if (!s1 || !s2) {
-		BUG();
+		WARN(1, "Bad boolean descriptor %p: s1=%p, s2=%p\n", b, s1, s2);
 		return 0;
 	} else {
 		long v1, v2;
-- 
cgit 


From bb34c0da646530425d9ae0e6e6229e641469da4c Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 13 Sep 2013 10:38:09 -0700
Subject: hwmon: (adt7462) Use error value returned from find_trange_value()

find_trange_value() returns -ENODEV in case of errors, only to have it
ignored and replaced with -EINVAL. Make it return -EINVAL and use it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
---
 drivers/hwmon/adt7462.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/hwmon/adt7462.c b/drivers/hwmon/adt7462.c
index addb5a4d5064..562cc3881d33 100644
--- a/drivers/hwmon/adt7462.c
+++ b/drivers/hwmon/adt7462.c
@@ -700,7 +700,7 @@ static int find_trange_value(int trange)
 		if (trange_values[i] == trange)
 			return i;
 
-	return -ENODEV;
+	return -EINVAL;
 }
 
 static struct adt7462_data *adt7462_update_device(struct device *dev)
@@ -1294,9 +1294,8 @@ static ssize_t set_pwm_tmax(struct device *dev,
 	/* trange = tmax - tmin */
 	tmin = (data->pwm_tmin[attr->index] - 64) * 1000;
 	trange_value = find_trange_value(trange - tmin);
-
 	if (trange_value < 0)
-		return -EINVAL;
+		return trange_value;
 
 	temp = trange_value << ADT7462_PWM_RANGE_SHIFT;
 	temp |= data->pwm_trange[attr->index] & ADT7462_PWM_HYST_MASK;
-- 
cgit 


From c52ae3d2794ee2a248245a9e5a26f717e1c401f5 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 13 Sep 2013 10:42:39 -0700
Subject: hwmon: (gpio_fan) Use error value returned from get_fan_speed_index()

get_fan_speed_index() returns -EINVAL in case of errors, only to have it
ignored and replaced with -ENODEV. Make it return -ENODEV and use it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/gpio-fan.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c
index b7d6a5704eb2..155c78f09d88 100644
--- a/drivers/hwmon/gpio-fan.c
+++ b/drivers/hwmon/gpio-fan.c
@@ -169,7 +169,7 @@ static int get_fan_speed_index(struct gpio_fan_data *fan_data)
 	dev_warn(&fan_data->pdev->dev,
 		 "missing speed array entry for GPIO value 0x%x\n", ctrl_val);
 
-	return -EINVAL;
+	return -ENODEV;
 }
 
 static int rpm_to_speed_index(struct gpio_fan_data *fan_data, int rpm)
@@ -384,7 +384,7 @@ static int fan_ctrl_init(struct gpio_fan_data *fan_data,
 	fan_data->pwm_enable = true; /* Enable manual fan speed control. */
 	fan_data->speed_index = get_fan_speed_index(fan_data);
 	if (fan_data->speed_index < 0)
-		return -ENODEV;
+		return fan_data->speed_index;
 
 	return 0;
 }
-- 
cgit 


From 83c97fe13e026a7795a07bfca76fe5d4b5cc5157 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 13 Sep 2013 10:51:35 -0700
Subject: hwmon: (acpi_power_meter) Don't crash the kernel unnecessarily

acpi_power_meter crashes the kernel if it detects an unexpected event
or an internal implementation error. While the detected conditions
suggest that there is a bug in the code, the condition is not fatal.
Replace BUG() with WARN().

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/acpi_power_meter.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c
index a9e3d0152c0b..51b045b20c1a 100644
--- a/drivers/hwmon/acpi_power_meter.c
+++ b/drivers/hwmon/acpi_power_meter.c
@@ -381,8 +381,10 @@ static ssize_t show_str(struct device *dev,
 		val = resource->oem_info;
 		break;
 	default:
-		BUG();
+		WARN(1, "Implementation error: unexpected attribute index %d\n",
+		     attr->index);
 		val = "";
+		break;
 	}
 
 	return sprintf(buf, "%s\n", val);
@@ -436,7 +438,9 @@ static ssize_t show_val(struct device *dev,
 		val = resource->trip[attr->index - 7] * 1000;
 		break;
 	default:
-		BUG();
+		WARN(1, "Implementation error: unexpected attribute index %d\n",
+		     attr->index);
+		break;
 	}
 
 	return sprintf(buf, "%llu\n", val);
@@ -855,7 +859,8 @@ static void acpi_power_meter_notify(struct acpi_device *device, u32 event)
 		dev_info(&device->dev, "Capping in progress.\n");
 		break;
 	default:
-		BUG();
+		WARN(1, "Unexpected event %d\n", event);
+		break;
 	}
 	mutex_unlock(&resource->lock);
 
-- 
cgit 


From 19f053c8406542eafb534b33d698677f076a3421 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 13 Sep 2013 10:56:11 -0700
Subject: hwmon: (acpi_power_meter) Use return value from
 acpi_bus_register_driver

acpi_bus_register_driver() returns a valid error code. Use it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/acpi_power_meter.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c
index 51b045b20c1a..8d40da314a8e 100644
--- a/drivers/hwmon/acpi_power_meter.c
+++ b/drivers/hwmon/acpi_power_meter.c
@@ -996,7 +996,7 @@ static int __init acpi_power_meter_init(void)
 
 	result = acpi_bus_register_driver(&acpi_power_meter_driver);
 	if (result < 0)
-		return -ENODEV;
+		return result;
 
 	return 0;
 }
-- 
cgit 


From 674d0ed8588c11ec9f70c8427ac83a73e0d156d5 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 13 Sep 2013 10:59:27 -0700
Subject: hwmon: (atxp1) Set and use error code from vid_to_reg()

vid_to_reg() returns -1 if it encounters an error. Return -EINVAL instead.
Its only caller, atxp1_storevcore(), doesn't use the return code but
returns -1 instead, which is wrong anyway as it means -EPERM.
Use the return value from vid_to_reg() instead to report the error.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
---
 drivers/hwmon/atxp1.c     | 3 +--
 include/linux/hwmon-vid.h | 2 +-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/hwmon/atxp1.c b/drivers/hwmon/atxp1.c
index aecb9ea7beb5..ddff02e3e66f 100644
--- a/drivers/hwmon/atxp1.c
+++ b/drivers/hwmon/atxp1.c
@@ -147,10 +147,9 @@ static ssize_t atxp1_storevcore(struct device *dev,
 
 	/* Calculate VID */
 	vid = vid_to_reg(vcore, data->vrm);
-
 	if (vid < 0) {
 		dev_err(dev, "VID calculation failed.\n");
-		return -1;
+		return vid;
 	}
 
 	/*
diff --git a/include/linux/hwmon-vid.h b/include/linux/hwmon-vid.h
index f346e4d5381c..da0a680e2f6d 100644
--- a/include/linux/hwmon-vid.h
+++ b/include/linux/hwmon-vid.h
@@ -38,7 +38,7 @@ static inline int vid_to_reg(int val, u8 vrm)
 		return ((val >= 1100) && (val <= 1850) ?
 			((18499 - val * 10) / 25 + 5) / 10 : -1);
 	default:
-		return -1;
+		return -EINVAL;
 	}
 }
 
-- 
cgit 


From 39b103b4d2e6f006dbd425cf71c46914bd31ce80 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sat, 14 Sep 2013 00:43:12 -0700
Subject: hwmon: (f75375s) Don't crash the kernel unnecessarily

The f75375s driver crashes the kernel if it detects an an internal
implementation error. While the detected conditions suggest that
there is a bug in the code, the condition is not fatal.
Replace BUG() with WARN().

Cc: Riku Voipio <riku.voipio@iki.fi>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/f75375s.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/f75375s.c b/drivers/hwmon/f75375s.c
index a837b94977f4..80c42bea90ed 100644
--- a/drivers/hwmon/f75375s.c
+++ b/drivers/hwmon/f75375s.c
@@ -275,7 +275,7 @@ static bool duty_mode_enabled(u8 pwm_enable)
 	case 3: /* Manual, speed mode */
 		return false;
 	default:
-		BUG();
+		WARN(1, "Unexpected pwm_enable value %d\n", pwm_enable);
 		return true;
 	}
 }
@@ -291,7 +291,7 @@ static bool auto_mode_enabled(u8 pwm_enable)
 	case 4: /* Auto, duty mode */
 		return true;
 	default:
-		BUG();
+		WARN(1, "Unexpected pwm_enable value %d\n", pwm_enable);
 		return false;
 	}
 }
-- 
cgit 


From 522928a87fb98f0d6c99a5d66d2049768be6935b Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sat, 14 Sep 2013 00:47:24 -0700
Subject: hwmon: (f71882fg) Remove extra return statement

Leftover from commit 33cd66e3 (hwmon: (f71882fg) Convert to use
devm_ functions).

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/f71882fg.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/hwmon/f71882fg.c b/drivers/hwmon/f71882fg.c
index 31b221eeee6c..03d8592810bf 100644
--- a/drivers/hwmon/f71882fg.c
+++ b/drivers/hwmon/f71882fg.c
@@ -2420,7 +2420,6 @@ static int f71882fg_probe(struct platform_device *pdev)
 exit_unregister_sysfs:
 	f71882fg_remove(pdev); /* Will unregister the sysfs files for us */
 	return err; /* f71882fg_remove() also frees our data */
-	return err;
 }
 
 static int f71882fg_remove(struct platform_device *pdev)
-- 
cgit 


From bab2243ce1897865e31ea6d59b0478391f51812b Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sat, 6 Jul 2013 13:57:23 -0700
Subject: hwmon: Introduce hwmon_device_register_with_groups

hwmon_device_register_with_groups() lets callers register a hwmon device
together with all sysfs attributes in a single call.

When using hwmon_device_register_with_groups(), hwmon attributes are attached
to the hwmon device directly and no longer with its parent device.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/hwmon.c | 122 +++++++++++++++++++++++++++++++++++++++++++-------
 include/linux/hwmon.h |   5 +++
 2 files changed, 111 insertions(+), 16 deletions(-)

diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c
index 646314f7c839..a982528293ea 100644
--- a/drivers/hwmon/hwmon.c
+++ b/drivers/hwmon/hwmon.c
@@ -15,6 +15,7 @@
 #include <linux/module.h>
 #include <linux/device.h>
 #include <linux/err.h>
+#include <linux/slab.h>
 #include <linux/kdev_t.h>
 #include <linux/idr.h>
 #include <linux/hwmon.h>
@@ -25,35 +26,122 @@
 #define HWMON_ID_PREFIX "hwmon"
 #define HWMON_ID_FORMAT HWMON_ID_PREFIX "%d"
 
-static struct class *hwmon_class;
+struct hwmon_device {
+	const char *name;
+	struct device dev;
+};
+#define to_hwmon_device(d) container_of(d, struct hwmon_device, dev)
+
+static ssize_t
+show_name(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	return sprintf(buf, "%s\n", to_hwmon_device(dev)->name);
+}
+static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
+
+static struct attribute *hwmon_dev_attrs[] = {
+	&dev_attr_name.attr,
+	NULL
+};
+
+static umode_t hwmon_dev_name_is_visible(struct kobject *kobj,
+					 struct attribute *attr, int n)
+{
+	struct device *dev = container_of(kobj, struct device, kobj);
+
+	if (to_hwmon_device(dev)->name == NULL)
+		return 0;
+
+	return attr->mode;
+}
+
+static struct attribute_group hwmon_dev_attr_group = {
+	.attrs		= hwmon_dev_attrs,
+	.is_visible	= hwmon_dev_name_is_visible,
+};
+
+static const struct attribute_group *hwmon_dev_attr_groups[] = {
+	&hwmon_dev_attr_group,
+	NULL
+};
+
+static void hwmon_dev_release(struct device *dev)
+{
+	kfree(to_hwmon_device(dev));
+}
+
+static struct class hwmon_class = {
+	.name = "hwmon",
+	.owner = THIS_MODULE,
+	.dev_groups = hwmon_dev_attr_groups,
+	.dev_release = hwmon_dev_release,
+};
 
 static DEFINE_IDA(hwmon_ida);
 
 /**
- * hwmon_device_register - register w/ hwmon
- * @dev: the device to register
+ * hwmon_device_register_with_groups - register w/ hwmon
+ * @dev: the parent device
+ * @name: hwmon name attribute
+ * @drvdata: driver data to attach to created device
+ * @groups: List of attribute groups to create
  *
  * hwmon_device_unregister() must be called when the device is no
  * longer needed.
  *
  * Returns the pointer to the new device.
  */
-struct device *hwmon_device_register(struct device *dev)
+struct device *
+hwmon_device_register_with_groups(struct device *dev, const char *name,
+				  void *drvdata,
+				  const struct attribute_group **groups)
 {
-	struct device *hwdev;
-	int id;
+	struct hwmon_device *hwdev;
+	int err, id;
 
 	id = ida_simple_get(&hwmon_ida, 0, 0, GFP_KERNEL);
 	if (id < 0)
 		return ERR_PTR(id);
 
-	hwdev = device_create(hwmon_class, dev, MKDEV(0, 0), NULL,
-			      HWMON_ID_FORMAT, id);
+	hwdev = kzalloc(sizeof(*hwdev), GFP_KERNEL);
+	if (hwdev == NULL) {
+		err = -ENOMEM;
+		goto ida_remove;
+	}
 
-	if (IS_ERR(hwdev))
-		ida_simple_remove(&hwmon_ida, id);
+	hwdev->name = name;
+	hwdev->dev.class = &hwmon_class;
+	hwdev->dev.parent = dev;
+	hwdev->dev.groups = groups;
+	hwdev->dev.of_node = dev ? dev->of_node : NULL;
+	dev_set_drvdata(&hwdev->dev, drvdata);
+	dev_set_name(&hwdev->dev, HWMON_ID_FORMAT, id);
+	err = device_register(&hwdev->dev);
+	if (err)
+		goto free;
+
+	return &hwdev->dev;
+
+free:
+	kfree(hwdev);
+ida_remove:
+	ida_simple_remove(&hwmon_ida, id);
+	return ERR_PTR(err);
+}
+EXPORT_SYMBOL_GPL(hwmon_device_register_with_groups);
 
-	return hwdev;
+/**
+ * hwmon_device_register - register w/ hwmon
+ * @dev: the device to register
+ *
+ * hwmon_device_unregister() must be called when the device is no
+ * longer needed.
+ *
+ * Returns the pointer to the new device.
+ */
+struct device *hwmon_device_register(struct device *dev)
+{
+	return hwmon_device_register_with_groups(dev, NULL, NULL, NULL);
 }
 EXPORT_SYMBOL_GPL(hwmon_device_register);
 
@@ -105,19 +193,21 @@ static void __init hwmon_pci_quirks(void)
 
 static int __init hwmon_init(void)
 {
+	int err;
+
 	hwmon_pci_quirks();
 
-	hwmon_class = class_create(THIS_MODULE, "hwmon");
-	if (IS_ERR(hwmon_class)) {
-		pr_err("couldn't create sysfs class\n");
-		return PTR_ERR(hwmon_class);
+	err = class_register(&hwmon_class);
+	if (err) {
+		pr_err("couldn't register hwmon sysfs class\n");
+		return err;
 	}
 	return 0;
 }
 
 static void __exit hwmon_exit(void)
 {
-	class_destroy(hwmon_class);
+	class_unregister(&hwmon_class);
 }
 
 subsys_initcall(hwmon_init);
diff --git a/include/linux/hwmon.h b/include/linux/hwmon.h
index b2514f70d591..6d02ff77ae1a 100644
--- a/include/linux/hwmon.h
+++ b/include/linux/hwmon.h
@@ -15,8 +15,13 @@
 #define _HWMON_H_
 
 struct device;
+struct attribute_group;
 
 struct device *hwmon_device_register(struct device *dev);
+struct device *
+hwmon_device_register_with_groups(struct device *dev, const char *name,
+				  void *drvdata,
+				  const struct attribute_group **groups);
 
 void hwmon_device_unregister(struct device *dev);
 
-- 
cgit 


From 8269b75ae72c4501df7caf93d053526cef7e8a8a Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 5 Jul 2013 22:30:39 -0700
Subject: hwmon: (ds1621) Convert to use hwmon_device_register_with_groups

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/ds1621.c | 60 +++++++++++++++++++++++---------------------------
 1 file changed, 27 insertions(+), 33 deletions(-)

diff --git a/drivers/hwmon/ds1621.c b/drivers/hwmon/ds1621.c
index a26ba7a17c2b..595f4ef87100 100644
--- a/drivers/hwmon/ds1621.c
+++ b/drivers/hwmon/ds1621.c
@@ -120,7 +120,7 @@ static const u8 DS1621_REG_TEMP[3] = {
 
 /* Each client has this additional data */
 struct ds1621_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	struct mutex update_lock;
 	char valid;			/* !=0 if following fields are valid */
 	unsigned long last_updated;	/* In jiffies */
@@ -151,10 +151,10 @@ static inline u16 DS1621_TEMP_TO_REG(long temp, u8 zbits)
 	return temp;
 }
 
-static void ds1621_init_client(struct i2c_client *client)
+static void ds1621_init_client(struct ds1621_data *data,
+			       struct i2c_client *client)
 {
 	u8 conf, new_conf, sreg, resol;
-	struct ds1621_data *data = i2c_get_clientdata(client);
 
 	new_conf = conf = i2c_smbus_read_byte_data(client, DS1621_REG_CONF);
 	/* switch to continuous conversion mode */
@@ -197,8 +197,8 @@ static void ds1621_init_client(struct i2c_client *client)
 
 static struct ds1621_data *ds1621_update_client(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ds1621_data *data = i2c_get_clientdata(client);
+	struct ds1621_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u8 new_conf;
 
 	mutex_lock(&data->update_lock);
@@ -247,8 +247,7 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *da,
 			const char *buf, size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ds1621_data *data = i2c_get_clientdata(client);
+	struct ds1621_data *data = dev_get_drvdata(dev);
 	long val;
 	int err;
 
@@ -258,7 +257,7 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *da,
 
 	mutex_lock(&data->update_lock);
 	data->temp[attr->index] = DS1621_TEMP_TO_REG(val, data->zbits);
-	i2c_smbus_write_word_swapped(client, DS1621_REG_TEMP[attr->index],
+	i2c_smbus_write_word_swapped(data->client, DS1621_REG_TEMP[attr->index],
 				     data->temp[attr->index]);
 	mutex_unlock(&data->update_lock);
 	return count;
@@ -282,16 +281,15 @@ static ssize_t show_alarm(struct device *dev, struct device_attribute *da,
 static ssize_t show_convrate(struct device *dev, struct device_attribute *da,
 			  char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ds1621_data *data = i2c_get_clientdata(client);
+	struct ds1621_data *data = dev_get_drvdata(dev);
 	return scnprintf(buf, PAGE_SIZE, "%hu\n", data->update_interval);
 }
 
 static ssize_t set_convrate(struct device *dev, struct device_attribute *da,
 			    const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ds1621_data *data = i2c_get_clientdata(client);
+	struct ds1621_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long convrate;
 	s32 err;
 	int resol = 0;
@@ -343,8 +341,7 @@ static umode_t ds1621_attribute_visible(struct kobject *kobj,
 					struct attribute *attr, int index)
 {
 	struct device *dev = container_of(kobj, struct device, kobj);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ds1621_data *data = i2c_get_clientdata(client);
+	struct ds1621_data *data = dev_get_drvdata(dev);
 
 	if (attr == &dev_attr_update_interval.attr)
 		if (data->kind == ds1621 || data->kind == ds1625)
@@ -358,49 +355,46 @@ static const struct attribute_group ds1621_group = {
 	.is_visible = ds1621_attribute_visible
 };
 
+static const struct attribute_group *ds1621_groups[] = {
+	&ds1621_group,
+	NULL
+};
+
 static int ds1621_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	struct ds1621_data *data;
-	int err;
+	struct device *hwmon_dev;
 
 	data = devm_kzalloc(&client->dev, sizeof(struct ds1621_data),
 			    GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
 	mutex_init(&data->update_lock);
 
 	data->kind = id->driver_data;
+	data->client = client;
 
 	/* Initialize the DS1621 chip */
-	ds1621_init_client(client);
+	ds1621_init_client(data, client);
 
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&client->dev.kobj, &ds1621_group);
-	if (err)
-		return err;
+	hwmon_dev = hwmon_device_register_with_groups(&client->dev,
+						      client->name, data,
+						      ds1621_groups);
+	if (IS_ERR(hwmon_dev))
+		return PTR_ERR(hwmon_dev);
 
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove_files;
-	}
+	i2c_set_clientdata(client, hwmon_dev);
 
 	return 0;
-
- exit_remove_files:
-	sysfs_remove_group(&client->dev.kobj, &ds1621_group);
-	return err;
 }
 
 static int ds1621_remove(struct i2c_client *client)
 {
-	struct ds1621_data *data = i2c_get_clientdata(client);
+	struct device *hwmon_dev = i2c_get_clientdata(client);
 
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &ds1621_group);
+	hwmon_device_unregister(hwmon_dev);
 
 	return 0;
 }
-- 
cgit 


From 7258a12536da7f0db881b9ec9348f0d00a67e062 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sat, 6 Jul 2013 09:46:14 -0700
Subject: hwmon: (gpio-fan) Convert to use hwmon_device_register_with_groups

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/gpio-fan.c | 41 ++++++++++++++---------------------------
 1 file changed, 14 insertions(+), 27 deletions(-)

diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c
index 155c78f09d88..d5148c85ec5f 100644
--- a/drivers/hwmon/gpio-fan.c
+++ b/drivers/hwmon/gpio-fan.c
@@ -309,12 +309,6 @@ exit_unlock:
 	return ret;
 }
 
-static ssize_t show_name(struct device *dev,
-			 struct device_attribute *attr, char *buf)
-{
-	return sprintf(buf, "gpio-fan\n");
-}
-
 static DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm);
 static DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
 		   show_pwm_enable, set_pwm_enable);
@@ -324,26 +318,23 @@ static DEVICE_ATTR(fan1_max, S_IRUGO, show_rpm_max, NULL);
 static DEVICE_ATTR(fan1_input, S_IRUGO, show_rpm, NULL);
 static DEVICE_ATTR(fan1_target, S_IRUGO | S_IWUSR, show_rpm, set_rpm);
 
-static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
-
 static umode_t gpio_fan_is_visible(struct kobject *kobj,
 				   struct attribute *attr, int index)
 {
 	struct device *dev = container_of(kobj, struct device, kobj);
 	struct gpio_fan_data *data = dev_get_drvdata(dev);
 
-	if (index == 1 && !data->alarm)
+	if (index == 0 && !data->alarm)
 		return 0;
-	if (index > 1 && !data->ctrl)
+	if (index > 0 && !data->ctrl)
 		return 0;
 
 	return attr->mode;
 }
 
 static struct attribute *gpio_fan_attributes[] = {
-	&dev_attr_name.attr,
-	&dev_attr_fan1_alarm.attr,		/* 1 */
-	&dev_attr_pwm1.attr,			/* 2 */
+	&dev_attr_fan1_alarm.attr,		/* 0 */
+	&dev_attr_pwm1.attr,			/* 1 */
 	&dev_attr_pwm1_enable.attr,
 	&dev_attr_pwm1_mode.attr,
 	&dev_attr_fan1_input.attr,
@@ -358,6 +349,11 @@ static const struct attribute_group gpio_fan_group = {
 	.is_visible = gpio_fan_is_visible,
 };
 
+static const struct attribute_group *gpio_fan_groups[] = {
+	&gpio_fan_group,
+	NULL
+};
+
 static int fan_ctrl_init(struct gpio_fan_data *fan_data,
 			 struct gpio_fan_platform_data *pdata)
 {
@@ -539,24 +535,16 @@ static int gpio_fan_probe(struct platform_device *pdev)
 			return err;
 	}
 
-	err = sysfs_create_group(&pdev->dev.kobj, &gpio_fan_group);
-	if (err)
-		return err;
-
 	/* Make this driver part of hwmon class. */
-	fan_data->hwmon_dev = hwmon_device_register(&pdev->dev);
-	if (IS_ERR(fan_data->hwmon_dev)) {
-		err = PTR_ERR(fan_data->hwmon_dev);
-		goto err_remove;
-	}
+	fan_data->hwmon_dev = hwmon_device_register_with_groups(&pdev->dev,
+						"gpio-fan", fan_data,
+						gpio_fan_groups);
+	if (IS_ERR(fan_data->hwmon_dev))
+		return PTR_ERR(fan_data->hwmon_dev);
 
 	dev_info(&pdev->dev, "GPIO fan initialized\n");
 
 	return 0;
-
-err_remove:
-	sysfs_remove_group(&pdev->dev.kobj, &gpio_fan_group);
-	return err;
 }
 
 static int gpio_fan_remove(struct platform_device *pdev)
@@ -564,7 +552,6 @@ static int gpio_fan_remove(struct platform_device *pdev)
 	struct gpio_fan_data *fan_data = platform_get_drvdata(pdev);
 
 	hwmon_device_unregister(fan_data->hwmon_dev);
-	sysfs_remove_group(&pdev->dev.kobj, &gpio_fan_group);
 
 	return 0;
 }
-- 
cgit 


From 9a85d53cfcf1d65c08033aac067f79d2cfee5ad7 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sat, 6 Jul 2013 09:46:38 -0700
Subject: hwmon: (ltc4245) Convert to use hwmon_device_register_with_groups

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/ltc4245.c | 78 +++++++++++++++----------------------------------
 1 file changed, 24 insertions(+), 54 deletions(-)

diff --git a/drivers/hwmon/ltc4245.c b/drivers/hwmon/ltc4245.c
index cdc1ecc6734d..d4172933ce4f 100644
--- a/drivers/hwmon/ltc4245.c
+++ b/drivers/hwmon/ltc4245.c
@@ -51,7 +51,9 @@ enum ltc4245_cmd {
 };
 
 struct ltc4245_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
+
+	const struct attribute_group *groups[3];
 
 	struct mutex update_lock;
 	bool valid;
@@ -77,8 +79,8 @@ struct ltc4245_data {
  */
 static void ltc4245_update_gpios(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ltc4245_data *data = i2c_get_clientdata(client);
+	struct ltc4245_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u8 gpio_curr, gpio_next, gpio_reg;
 	int i;
 
@@ -130,8 +132,8 @@ static void ltc4245_update_gpios(struct device *dev)
 
 static struct ltc4245_data *ltc4245_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ltc4245_data *data = i2c_get_clientdata(client);
+	struct ltc4245_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	s32 val;
 	int i;
 
@@ -455,41 +457,14 @@ static const struct attribute_group ltc4245_gpio_group = {
 	.attrs = ltc4245_gpio_attributes,
 };
 
-static int ltc4245_sysfs_create_groups(struct i2c_client *client)
+static void ltc4245_sysfs_add_groups(struct ltc4245_data *data)
 {
-	struct ltc4245_data *data = i2c_get_clientdata(client);
-	struct device *dev = &client->dev;
-	int ret;
-
-	/* register the standard sysfs attributes */
-	ret = sysfs_create_group(&dev->kobj, &ltc4245_std_group);
-	if (ret) {
-		dev_err(dev, "unable to register standard attributes\n");
-		return ret;
-	}
+	/* standard sysfs attributes */
+	data->groups[0] = &ltc4245_std_group;
 
 	/* if we're using the extra gpio support, register it's attributes */
-	if (data->use_extra_gpios) {
-		ret = sysfs_create_group(&dev->kobj, &ltc4245_gpio_group);
-		if (ret) {
-			dev_err(dev, "unable to register gpio attributes\n");
-			sysfs_remove_group(&dev->kobj, &ltc4245_std_group);
-			return ret;
-		}
-	}
-
-	return 0;
-}
-
-static void ltc4245_sysfs_remove_groups(struct i2c_client *client)
-{
-	struct ltc4245_data *data = i2c_get_clientdata(client);
-	struct device *dev = &client->dev;
-
 	if (data->use_extra_gpios)
-		sysfs_remove_group(&dev->kobj, &ltc4245_gpio_group);
-
-	sysfs_remove_group(&dev->kobj, &ltc4245_std_group);
+		data->groups[1] = &ltc4245_gpio_group;
 }
 
 static bool ltc4245_use_extra_gpios(struct i2c_client *client)
@@ -517,7 +492,7 @@ static int ltc4245_probe(struct i2c_client *client,
 {
 	struct i2c_adapter *adapter = client->adapter;
 	struct ltc4245_data *data;
-	int ret;
+	struct device *hwmon_dev;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		return -ENODEV;
@@ -526,7 +501,7 @@ static int ltc4245_probe(struct i2c_client *client,
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->update_lock);
 	data->use_extra_gpios = ltc4245_use_extra_gpios(client);
 
@@ -534,30 +509,25 @@ static int ltc4245_probe(struct i2c_client *client,
 	i2c_smbus_write_byte_data(client, LTC4245_FAULT1, 0x00);
 	i2c_smbus_write_byte_data(client, LTC4245_FAULT2, 0x00);
 
-	/* Register sysfs hooks */
-	ret = ltc4245_sysfs_create_groups(client);
-	if (ret)
-		return ret;
+	/* Add sysfs hooks */
+	ltc4245_sysfs_add_groups(data);
 
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		ret = PTR_ERR(data->hwmon_dev);
-		goto out_hwmon_device_register;
-	}
+	hwmon_dev = hwmon_device_register_with_groups(&client->dev,
+						      client->name, data,
+						      data->groups);
+	if (IS_ERR(hwmon_dev))
+		return PTR_ERR(hwmon_dev);
 
-	return 0;
+	i2c_set_clientdata(client, hwmon_dev);
 
-out_hwmon_device_register:
-	ltc4245_sysfs_remove_groups(client);
-	return ret;
+	return 0;
 }
 
 static int ltc4245_remove(struct i2c_client *client)
 {
-	struct ltc4245_data *data = i2c_get_clientdata(client);
+	struct device *hwmon_dev = i2c_get_clientdata(client);
 
-	hwmon_device_unregister(data->hwmon_dev);
-	ltc4245_sysfs_remove_groups(client);
+	hwmon_device_unregister(hwmon_dev);
 
 	return 0;
 }
-- 
cgit 


From c3b7cddc70075d525db6b3068d8b2b9158eedc84 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sat, 6 Jul 2013 09:47:08 -0700
Subject: hwmon: (pmbus) Convert to use hwmon_device_register_with_groups

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/pmbus/pmbus_core.c | 20 +++++++-------------
 1 file changed, 7 insertions(+), 13 deletions(-)

diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index 871cf64d2996..7f9ce3251063 100644
--- a/drivers/hwmon/pmbus/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -97,6 +97,7 @@ struct pmbus_data {
 	int max_attributes;
 	int num_attributes;
 	struct attribute_group group;
+	const struct attribute_group *groups[2];
 
 	struct pmbus_sensor *sensors;
 
@@ -348,7 +349,7 @@ static struct _pmbus_status {
 
 static struct pmbus_data *pmbus_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
+	struct i2c_client *client = to_i2c_client(dev->parent);
 	struct pmbus_data *data = i2c_get_clientdata(client);
 	const struct pmbus_driver_info *info = data->info;
 	struct pmbus_sensor *sensor;
@@ -733,7 +734,7 @@ static ssize_t pmbus_set_sensor(struct device *dev,
 				struct device_attribute *devattr,
 				const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
+	struct i2c_client *client = to_i2c_client(dev->parent);
 	struct pmbus_data *data = i2c_get_clientdata(client);
 	struct pmbus_sensor *sensor = to_pmbus_sensor(devattr);
 	ssize_t rv = count;
@@ -1768,22 +1769,16 @@ int pmbus_do_probe(struct i2c_client *client, const struct i2c_device_id *id,
 		goto out_kfree;
 	}
 
-	/* Register sysfs hooks */
-	ret = sysfs_create_group(&dev->kobj, &data->group);
-	if (ret) {
-		dev_err(dev, "Failed to create sysfs entries\n");
-		goto out_kfree;
-	}
-	data->hwmon_dev = hwmon_device_register(dev);
+	data->groups[0] = &data->group;
+	data->hwmon_dev = hwmon_device_register_with_groups(dev, client->name,
+							    data, data->groups);
 	if (IS_ERR(data->hwmon_dev)) {
 		ret = PTR_ERR(data->hwmon_dev);
 		dev_err(dev, "Failed to register hwmon device\n");
-		goto out_hwmon_device_register;
+		goto out_kfree;
 	}
 	return 0;
 
-out_hwmon_device_register:
-	sysfs_remove_group(&dev->kobj, &data->group);
 out_kfree:
 	kfree(data->group.attrs);
 	return ret;
@@ -1794,7 +1789,6 @@ int pmbus_do_remove(struct i2c_client *client)
 {
 	struct pmbus_data *data = i2c_get_clientdata(client);
 	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &data->group);
 	kfree(data->group.attrs);
 	return 0;
 }
-- 
cgit 


From 615fc8cb0f900c91ee50f0da0a1821a7c6823671 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sat, 6 Jul 2013 09:43:30 -0700
Subject: hwmon: (nct6775) Convert to use hwmon_device_register_with_groups

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/nct6775.c | 122 ++++++++++++++----------------------------------
 1 file changed, 36 insertions(+), 86 deletions(-)

diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index b82fad487777..58e9e11ef32a 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -725,10 +725,9 @@ struct nct6775_data {
 	const char *name;
 
 	struct device *hwmon_dev;
-	struct attribute_group *group_in;
-	struct attribute_group *group_fan;
-	struct attribute_group *group_temp;
-	struct attribute_group *group_pwm;
+
+	int num_attr_groups;
+	const struct attribute_group *groups[6];
 
 	u16 reg_temp[5][NUM_TEMP]; /* 0=temp, 1=temp_over, 2=temp_hyst,
 				    * 3=temp_crit, 4=temp_lcrit
@@ -942,7 +941,7 @@ nct6775_create_attr_group(struct device *dev, struct sensor_template_group *tg,
 	struct sensor_device_attribute_2 *a2;
 	struct attribute **attrs;
 	struct sensor_device_template **t;
-	int err, i, j, count;
+	int i, j, count;
 
 	if (repeat <= 0)
 		return ERR_PTR(-EINVAL);
@@ -1002,10 +1001,6 @@ nct6775_create_attr_group(struct device *dev, struct sensor_template_group *tg,
 		}
 	}
 
-	err = sysfs_create_group(&dev->kobj, group);
-	if (err)
-		return ERR_PTR(-ENOMEM);
-
 	return group;
 }
 
@@ -2726,16 +2721,6 @@ store_fan_time(struct device *dev, struct device_attribute *attr,
 	return count;
 }
 
-static ssize_t
-show_name(struct device *dev, struct device_attribute *attr, char *buf)
-{
-	struct nct6775_data *data = dev_get_drvdata(dev);
-
-	return sprintf(buf, "%s\n", data->name);
-}
-
-static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
-
 static ssize_t
 show_auto_pwm(struct device *dev, struct device_attribute *attr, char *buf)
 {
@@ -3062,16 +3047,16 @@ static umode_t nct6775_other_is_visible(struct kobject *kobj,
 	struct device *dev = container_of(kobj, struct device, kobj);
 	struct nct6775_data *data = dev_get_drvdata(dev);
 
-	if (index == 1 && !data->have_vid)
+	if (index == 0 && !data->have_vid)
 		return 0;
 
-	if (index == 2 || index == 3) {
-		if (data->ALARM_BITS[INTRUSION_ALARM_BASE + index - 2] < 0)
+	if (index == 1 || index == 2) {
+		if (data->ALARM_BITS[INTRUSION_ALARM_BASE + index - 1] < 0)
 			return 0;
 	}
 
-	if (index == 4 || index == 5) {
-		if (data->BEEP_BITS[INTRUSION_ALARM_BASE + index - 4] < 0)
+	if (index == 3 || index == 4) {
+		if (data->BEEP_BITS[INTRUSION_ALARM_BASE + index - 3] < 0)
 			return 0;
 	}
 
@@ -3084,13 +3069,12 @@ static umode_t nct6775_other_is_visible(struct kobject *kobj,
  * Any change in order or content must be matched.
  */
 static struct attribute *nct6775_attributes_other[] = {
-	&dev_attr_name.attr,
-	&dev_attr_cpu0_vid.attr,				/* 1 */
-	&sensor_dev_attr_intrusion0_alarm.dev_attr.attr,	/* 2 */
-	&sensor_dev_attr_intrusion1_alarm.dev_attr.attr,	/* 3 */
-	&sensor_dev_attr_intrusion0_beep.dev_attr.attr,		/* 4 */
-	&sensor_dev_attr_intrusion1_beep.dev_attr.attr,		/* 5 */
-	&sensor_dev_attr_beep_enable.dev_attr.attr,		/* 6 */
+	&dev_attr_cpu0_vid.attr,				/* 0 */
+	&sensor_dev_attr_intrusion0_alarm.dev_attr.attr,	/* 1 */
+	&sensor_dev_attr_intrusion1_alarm.dev_attr.attr,	/* 2 */
+	&sensor_dev_attr_intrusion0_beep.dev_attr.attr,		/* 3 */
+	&sensor_dev_attr_intrusion1_beep.dev_attr.attr,		/* 4 */
+	&sensor_dev_attr_beep_enable.dev_attr.attr,		/* 5 */
 
 	NULL
 };
@@ -3100,27 +3084,6 @@ static const struct attribute_group nct6775_group_other = {
 	.is_visible = nct6775_other_is_visible,
 };
 
-/*
- * Driver and device management
- */
-
-static void nct6775_device_remove_files(struct device *dev)
-{
-	struct nct6775_data *data = dev_get_drvdata(dev);
-
-	if (data->group_pwm)
-		sysfs_remove_group(&dev->kobj, data->group_pwm);
-	if (data->group_in)
-		sysfs_remove_group(&dev->kobj, data->group_in);
-	if (data->group_fan)
-		sysfs_remove_group(&dev->kobj, data->group_fan);
-	if (data->group_temp)
-		sysfs_remove_group(&dev->kobj, data->group_temp);
-
-	sysfs_remove_group(&dev->kobj, &nct6775_group_other);
-}
-
-/* Get the monitoring functions started */
 static inline void nct6775_init_device(struct nct6775_data *data)
 {
 	int i;
@@ -3871,51 +3834,39 @@ static int nct6775_probe(struct platform_device *pdev)
 	/* Register sysfs hooks */
 	group = nct6775_create_attr_group(dev, &nct6775_pwm_template_group,
 					  data->pwm_num);
-	if (IS_ERR(group)) {
-		err = PTR_ERR(group);
-		goto exit_remove;
-	}
-	data->group_pwm = group;
+	if (IS_ERR(group))
+		return PTR_ERR(group);
+
+	data->groups[data->num_attr_groups++] = group;
 
 	group = nct6775_create_attr_group(dev, &nct6775_in_template_group,
 					  fls(data->have_in));
-	if (IS_ERR(group)) {
-		err = PTR_ERR(group);
-		goto exit_remove;
-	}
-	data->group_in = group;
+	if (IS_ERR(group))
+		return PTR_ERR(group);
+
+	data->groups[data->num_attr_groups++] = group;
 
 	group = nct6775_create_attr_group(dev, &nct6775_fan_template_group,
 					  fls(data->has_fan));
-	if (IS_ERR(group)) {
-		err = PTR_ERR(group);
-		goto exit_remove;
-	}
-	data->group_fan = group;
+	if (IS_ERR(group))
+		return PTR_ERR(group);
+
+	data->groups[data->num_attr_groups++] = group;
 
 	group = nct6775_create_attr_group(dev, &nct6775_temp_template_group,
 					  fls(data->have_temp));
-	if (IS_ERR(group)) {
-		err = PTR_ERR(group);
-		goto exit_remove;
-	}
-	data->group_temp = group;
+	if (IS_ERR(group))
+		return PTR_ERR(group);
 
-	err = sysfs_create_group(&dev->kobj, &nct6775_group_other);
-	if (err)
-		goto exit_remove;
+	data->groups[data->num_attr_groups++] = group;
+	data->groups[data->num_attr_groups++] = &nct6775_group_other;
 
-	data->hwmon_dev = hwmon_device_register(dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove;
-	}
+	data->hwmon_dev = hwmon_device_register_with_groups(dev, data->name,
+							    data, data->groups);
+	if (IS_ERR(data->hwmon_dev))
+		return PTR_ERR(data->hwmon_dev);
 
 	return 0;
-
-exit_remove:
-	nct6775_device_remove_files(dev);
-	return err;
 }
 
 static int nct6775_remove(struct platform_device *pdev)
@@ -3923,7 +3874,6 @@ static int nct6775_remove(struct platform_device *pdev)
 	struct nct6775_data *data = platform_get_drvdata(pdev);
 
 	hwmon_device_unregister(data->hwmon_dev);
-	nct6775_device_remove_files(&pdev->dev);
 
 	return 0;
 }
@@ -4102,7 +4052,7 @@ static int __init nct6775_find(int sioaddr, struct nct6775_sio_data *sio_data)
 /*
  * when Super-I/O functions move to a separate file, the Super-I/O
  * bus will manage the lifetime of the device and this module will only keep
- * track of the nct6775 driver. But since we platform_device_alloc(), we
+ * track of the nct6775 driver. But since we use platform_device_alloc(), we
  * must keep track of the device
  */
 static struct platform_device *pdev[2];
-- 
cgit 


From 74188cba088192e14cd7fd5433876e8c947bcdd8 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Thu, 11 Jul 2013 20:00:12 -0700
Subject: hwmon: Provide managed hwmon registration

Drivers using the new hwmon_device_register_with_groups API often have a
remove function which consists solely of a call hwmon_device_unregister().

Provide support for devm_hwmon_device_register_with_groups and
devm_hwmon_device_unregister to allow this repeated code to be removed
and help eliminate error handling code.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/hwmon.c | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++
 include/linux/hwmon.h |  5 ++++
 2 files changed, 68 insertions(+)

diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c
index a982528293ea..e176a43af63d 100644
--- a/drivers/hwmon/hwmon.c
+++ b/drivers/hwmon/hwmon.c
@@ -163,6 +163,69 @@ void hwmon_device_unregister(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(hwmon_device_unregister);
 
+static void devm_hwmon_release(struct device *dev, void *res)
+{
+	struct device *hwdev = *(struct device **)res;
+
+	hwmon_device_unregister(hwdev);
+}
+
+/**
+ * devm_hwmon_device_register_with_groups - register w/ hwmon
+ * @dev: the parent device
+ * @name: hwmon name attribute
+ * @drvdata: driver data to attach to created device
+ * @groups: List of attribute groups to create
+ *
+ * Returns the pointer to the new device. The new device is automatically
+ * unregistered with the parent device.
+ */
+struct device *
+devm_hwmon_device_register_with_groups(struct device *dev, const char *name,
+				       void *drvdata,
+				       const struct attribute_group **groups)
+{
+	struct device **ptr, *hwdev;
+
+	if (!dev)
+		return ERR_PTR(-EINVAL);
+
+	ptr = devres_alloc(devm_hwmon_release, sizeof(*ptr), GFP_KERNEL);
+	if (!ptr)
+		return ERR_PTR(-ENOMEM);
+
+	hwdev = hwmon_device_register_with_groups(dev, name, drvdata, groups);
+	if (IS_ERR(hwdev))
+		goto error;
+
+	*ptr = hwdev;
+	devres_add(dev, ptr);
+	return hwdev;
+
+error:
+	devres_free(ptr);
+	return hwdev;
+}
+EXPORT_SYMBOL_GPL(devm_hwmon_device_register_with_groups);
+
+static int devm_hwmon_match(struct device *dev, void *res, void *data)
+{
+	struct device **hwdev = res;
+
+	return *hwdev == data;
+}
+
+/**
+ * devm_hwmon_device_unregister - removes a previously registered hwmon device
+ *
+ * @dev: the parent device of the device to unregister
+ */
+void devm_hwmon_device_unregister(struct device *dev)
+{
+	WARN_ON(devres_release(dev, devm_hwmon_release, devm_hwmon_match, dev));
+}
+EXPORT_SYMBOL_GPL(devm_hwmon_device_unregister);
+
 static void __init hwmon_pci_quirks(void)
 {
 #if defined CONFIG_X86 && defined CONFIG_PCI
diff --git a/include/linux/hwmon.h b/include/linux/hwmon.h
index 6d02ff77ae1a..09354f6c1d63 100644
--- a/include/linux/hwmon.h
+++ b/include/linux/hwmon.h
@@ -22,7 +22,12 @@ struct device *
 hwmon_device_register_with_groups(struct device *dev, const char *name,
 				  void *drvdata,
 				  const struct attribute_group **groups);
+struct device *
+devm_hwmon_device_register_with_groups(struct device *dev, const char *name,
+				       void *drvdata,
+				       const struct attribute_group **groups);
 
 void hwmon_device_unregister(struct device *dev);
+void devm_hwmon_device_unregister(struct device *dev);
 
 #endif
-- 
cgit 


From a150d95b7ce55fca87143f8ddce02f661e2fc6ec Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Thu, 11 Jul 2013 22:55:22 -0700
Subject: hwmon: (nct6775) Convert to use
 devm_hwmon_device_register_with_groups

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/nct6775.c | 21 +++++----------------
 1 file changed, 5 insertions(+), 16 deletions(-)

diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index 58e9e11ef32a..fdbd63282e29 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -724,8 +724,6 @@ struct nct6775_data {
 	enum kinds kind;
 	const char *name;
 
-	struct device *hwmon_dev;
-
 	int num_attr_groups;
 	const struct attribute_group *groups[6];
 
@@ -3260,6 +3258,7 @@ static int nct6775_probe(struct platform_device *pdev)
 	int num_reg_temp;
 	u8 cr2a;
 	struct attribute_group *group;
+	struct device *hwmon_dev;
 
 	res = platform_get_resource(pdev, IORESOURCE_IO, 0);
 	if (!devm_request_region(&pdev->dev, res->start, IOREGION_LENGTH,
@@ -3861,19 +3860,10 @@ static int nct6775_probe(struct platform_device *pdev)
 	data->groups[data->num_attr_groups++] = group;
 	data->groups[data->num_attr_groups++] = &nct6775_group_other;
 
-	data->hwmon_dev = hwmon_device_register_with_groups(dev, data->name,
-							    data, data->groups);
-	if (IS_ERR(data->hwmon_dev))
-		return PTR_ERR(data->hwmon_dev);
-
-	return 0;
-}
-
-static int nct6775_remove(struct platform_device *pdev)
-{
-	struct nct6775_data *data = platform_get_drvdata(pdev);
-
-	hwmon_device_unregister(data->hwmon_dev);
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, data->name,
+							   data, data->groups);
+	if (IS_ERR(hwmon_dev))
+		return PTR_ERR(hwmon_dev);
 
 	return 0;
 }
@@ -3964,7 +3954,6 @@ static struct platform_driver nct6775_driver = {
 		.pm	= NCT6775_DEV_PM_OPS,
 	},
 	.probe		= nct6775_probe,
-	.remove		= nct6775_remove,
 };
 
 static const char * const nct6775_sio_names[] __initconst = {
-- 
cgit 


From 0d36dce0f1d15a9ca55f893b3aa5ce7c297e11c8 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Thu, 11 Jul 2013 22:55:51 -0700
Subject: hwmon: (ds1621) Convert to use devm_hwmon_device_register_with_groups

Also use new macro __ATTRIBUTE_GROUPS to declare attribute groups.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/ds1621.c | 24 ++++--------------------
 1 file changed, 4 insertions(+), 20 deletions(-)

diff --git a/drivers/hwmon/ds1621.c b/drivers/hwmon/ds1621.c
index 595f4ef87100..5e398c98db2e 100644
--- a/drivers/hwmon/ds1621.c
+++ b/drivers/hwmon/ds1621.c
@@ -354,11 +354,7 @@ static const struct attribute_group ds1621_group = {
 	.attrs = ds1621_attributes,
 	.is_visible = ds1621_attribute_visible
 };
-
-static const struct attribute_group *ds1621_groups[] = {
-	&ds1621_group,
-	NULL
-};
+__ATTRIBUTE_GROUPS(ds1621);
 
 static int ds1621_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
@@ -379,23 +375,12 @@ static int ds1621_probe(struct i2c_client *client,
 	/* Initialize the DS1621 chip */
 	ds1621_init_client(data, client);
 
-	hwmon_dev = hwmon_device_register_with_groups(&client->dev,
-						      client->name, data,
-						      ds1621_groups);
+	hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev,
+							   client->name, data,
+							   ds1621_groups);
 	if (IS_ERR(hwmon_dev))
 		return PTR_ERR(hwmon_dev);
 
-	i2c_set_clientdata(client, hwmon_dev);
-
-	return 0;
-}
-
-static int ds1621_remove(struct i2c_client *client)
-{
-	struct device *hwmon_dev = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(hwmon_dev);
-
 	return 0;
 }
 
@@ -416,7 +401,6 @@ static struct i2c_driver ds1621_driver = {
 		.name	= "ds1621",
 	},
 	.probe		= ds1621_probe,
-	.remove		= ds1621_remove,
 	.id_table	= ds1621_id,
 };
 
-- 
cgit 


From 9bd024e9fd2bb82fdeb2a2bc8a4b687548f1467e Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sun, 1 Sep 2013 16:48:48 -0700
Subject: hwmon: (max6642) Convert to use
 devm_hwmon_device_register_with_groups

Also rename new_client variable to client and introduce
new variable dev pointing to client->dev in the probe function,
and use new macro ATTRIBUTE_GROUPS to declare attribute groups.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/max6642.c | 72 +++++++++++++++++--------------------------------
 1 file changed, 24 insertions(+), 48 deletions(-)

diff --git a/drivers/hwmon/max6642.c b/drivers/hwmon/max6642.c
index 57d58cd32206..3d61f8d719d5 100644
--- a/drivers/hwmon/max6642.c
+++ b/drivers/hwmon/max6642.c
@@ -87,7 +87,7 @@ static int temp_to_reg(int val)
  */
 
 struct max6642_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	struct mutex update_lock;
 	bool valid; /* zero until following fields are valid */
 	unsigned long last_updated; /* in jiffies */
@@ -102,10 +102,10 @@ struct max6642_data {
  * Real code
  */
 
-static void max6642_init_client(struct i2c_client *client)
+static void max6642_init_client(struct max6642_data *data,
+				struct i2c_client *client)
 {
 	u8 config;
-	struct max6642_data *data = i2c_get_clientdata(client);
 
 	/*
 	 * Start the conversions.
@@ -168,14 +168,14 @@ static int max6642_detect(struct i2c_client *client,
 
 static struct max6642_data *max6642_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct max6642_data *data = i2c_get_clientdata(client);
+	struct max6642_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u16 val, tmp;
 
 	mutex_lock(&data->update_lock);
 
 	if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
-		dev_dbg(&client->dev, "Updating max6642 data.\n");
+		dev_dbg(dev, "Updating max6642 data.\n");
 		val = i2c_smbus_read_byte_data(client,
 					MAX6642_REG_R_LOCAL_TEMPL);
 		tmp = (val >> 6) & 3;
@@ -209,8 +209,8 @@ static struct max6642_data *max6642_update_device(struct device *dev)
 static ssize_t show_temp_max10(struct device *dev,
 			       struct device_attribute *dev_attr, char *buf)
 {
-	struct max6642_data *data = max6642_update_device(dev);
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(dev_attr);
+	struct max6642_data *data = max6642_update_device(dev);
 
 	return sprintf(buf, "%d\n",
 		       temp_from_reg10(data->temp_input[attr->index]));
@@ -219,8 +219,8 @@ static ssize_t show_temp_max10(struct device *dev,
 static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
 			     char *buf)
 {
-	struct max6642_data *data = max6642_update_device(dev);
 	struct sensor_device_attribute_2 *attr2 = to_sensor_dev_attr_2(attr);
+	struct max6642_data *data = max6642_update_device(dev);
 
 	return sprintf(buf, "%d\n", temp_from_reg(data->temp_high[attr2->nr]));
 }
@@ -228,11 +228,10 @@ static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
 static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
 			    const char *buf, size_t count)
 {
+	struct sensor_device_attribute_2 *attr2 = to_sensor_dev_attr_2(attr);
+	struct max6642_data *data = dev_get_drvdata(dev);
 	unsigned long val;
 	int err;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct max6642_data *data = i2c_get_clientdata(client);
-	struct sensor_device_attribute_2 *attr2 = to_sensor_dev_attr_2(attr);
 
 	err = kstrtoul(buf, 10, &val);
 	if (err < 0)
@@ -240,7 +239,7 @@ static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
 
 	mutex_lock(&data->update_lock);
 	data->temp_high[attr2->nr] = clamp_val(temp_to_reg(val), 0, 255);
-	i2c_smbus_write_byte_data(client, attr2->index,
+	i2c_smbus_write_byte_data(data->client, attr2->index,
 				  data->temp_high[attr2->nr]);
 	mutex_unlock(&data->update_lock);
 	return count;
@@ -264,7 +263,7 @@ static SENSOR_DEVICE_ATTR(temp2_fault, S_IRUGO, show_alarm, NULL, 2);
 static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO, show_alarm, NULL, 6);
 static SENSOR_DEVICE_ATTR(temp2_max_alarm, S_IRUGO, show_alarm, NULL, 4);
 
-static struct attribute *max6642_attributes[] = {
+static struct attribute *max6642_attrs[] = {
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	&sensor_dev_attr_temp2_input.dev_attr.attr,
 	&sensor_dev_attr_temp1_max.dev_attr.attr,
@@ -275,52 +274,30 @@ static struct attribute *max6642_attributes[] = {
 	&sensor_dev_attr_temp2_max_alarm.dev_attr.attr,
 	NULL
 };
+ATTRIBUTE_GROUPS(max6642);
 
-static const struct attribute_group max6642_group = {
-	.attrs = max6642_attributes,
-};
-
-static int max6642_probe(struct i2c_client *new_client,
+static int max6642_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
+	struct device *dev = &client->dev;
 	struct max6642_data *data;
-	int err;
+	struct device *hwmon_dev;
 
-	data = devm_kzalloc(&new_client->dev, sizeof(struct max6642_data),
-			    GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct max6642_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(new_client, data);
+	data->client = client;
 	mutex_init(&data->update_lock);
 
 	/* Initialize the MAX6642 chip */
-	max6642_init_client(new_client);
-
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&new_client->dev.kobj, &max6642_group);
-	if (err)
-		return err;
-
-	data->hwmon_dev = hwmon_device_register(&new_client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove_files;
-	}
-
-	return 0;
-
-exit_remove_files:
-	sysfs_remove_group(&new_client->dev.kobj, &max6642_group);
-	return err;
-}
-
-static int max6642_remove(struct i2c_client *client)
-{
-	struct max6642_data *data = i2c_get_clientdata(client);
+	max6642_init_client(data, client);
 
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &max6642_group);
+	hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev,
+							   client->name, data,
+							   max6642_groups);
+	if (IS_ERR(hwmon_dev))
+		return PTR_ERR(hwmon_dev);
 
 	return 0;
 }
@@ -341,7 +318,6 @@ static struct i2c_driver max6642_driver = {
 		.name	= "max6642",
 	},
 	.probe		= max6642_probe,
-	.remove		= max6642_remove,
 	.id_table	= max6642_id,
 	.detect		= max6642_detect,
 	.address_list	= normal_i2c,
-- 
cgit 


From 3710263f136e629af1e4bae8df1c02b7fdec6260 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sun, 1 Sep 2013 18:32:52 -0700
Subject: hwmon: (lm73) Convert to use devm_hwmon_device_register_with_groups

Also introduce new variable dev pointing to client->dev in the probe
function, and use new macro ATTRIBUTE_GROUPS to declare attribute groups.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/lm73.c | 70 +++++++++++++++++-----------------------------------
 1 file changed, 22 insertions(+), 48 deletions(-)

diff --git a/drivers/hwmon/lm73.c b/drivers/hwmon/lm73.c
index 9bde9644b102..9653bb870a47 100644
--- a/drivers/hwmon/lm73.c
+++ b/drivers/hwmon/lm73.c
@@ -55,7 +55,7 @@ static const unsigned short lm73_convrates[] = {
 };
 
 struct lm73_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	struct mutex lock;
 	u8 ctrl;			/* control register value */
 };
@@ -66,7 +66,7 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *da,
 			const char *buf, size_t count)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
-	struct i2c_client *client = to_i2c_client(dev);
+	struct lm73_data *data = dev_get_drvdata(dev);
 	long temp;
 	short value;
 	s32 err;
@@ -77,7 +77,7 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *da,
 
 	/* Write value */
 	value = clamp_val(temp / 250, LM73_TEMP_MIN, LM73_TEMP_MAX) << 5;
-	err = i2c_smbus_write_word_swapped(client, attr->index, value);
+	err = i2c_smbus_write_word_swapped(data->client, attr->index, value);
 	return (err < 0) ? err : count;
 }
 
@@ -85,10 +85,10 @@ static ssize_t show_temp(struct device *dev, struct device_attribute *da,
 			 char *buf)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
-	struct i2c_client *client = to_i2c_client(dev);
+	struct lm73_data *data = dev_get_drvdata(dev);
 	int temp;
 
-	s32 err = i2c_smbus_read_word_swapped(client, attr->index);
+	s32 err = i2c_smbus_read_word_swapped(data->client, attr->index);
 	if (err < 0)
 		return err;
 
@@ -101,8 +101,7 @@ static ssize_t show_temp(struct device *dev, struct device_attribute *da,
 static ssize_t set_convrate(struct device *dev, struct device_attribute *da,
 			    const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm73_data *data = i2c_get_clientdata(client);
+	struct lm73_data *data = dev_get_drvdata(dev);
 	unsigned long convrate;
 	s32 err;
 	int res = 0;
@@ -124,7 +123,8 @@ static ssize_t set_convrate(struct device *dev, struct device_attribute *da,
 	mutex_lock(&data->lock);
 	data->ctrl &= LM73_CTRL_TO_MASK;
 	data->ctrl |= res << LM73_CTRL_RES_SHIFT;
-	err = i2c_smbus_write_byte_data(client, LM73_REG_CTRL, data->ctrl);
+	err = i2c_smbus_write_byte_data(data->client, LM73_REG_CTRL,
+					data->ctrl);
 	mutex_unlock(&data->lock);
 
 	if (err < 0)
@@ -136,8 +136,7 @@ static ssize_t set_convrate(struct device *dev, struct device_attribute *da,
 static ssize_t show_convrate(struct device *dev, struct device_attribute *da,
 			     char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm73_data *data = i2c_get_clientdata(client);
+	struct lm73_data *data = dev_get_drvdata(dev);
 	int res;
 
 	res = (data->ctrl & LM73_CTRL_RES_MASK) >> LM73_CTRL_RES_SHIFT;
@@ -147,13 +146,12 @@ static ssize_t show_convrate(struct device *dev, struct device_attribute *da,
 static ssize_t show_maxmin_alarm(struct device *dev,
 				 struct device_attribute *da, char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
-	struct lm73_data *data = i2c_get_clientdata(client);
+	struct lm73_data *data = dev_get_drvdata(dev);
 	s32 ctrl;
 
 	mutex_lock(&data->lock);
-	ctrl = i2c_smbus_read_byte_data(client, LM73_REG_CTRL);
+	ctrl = i2c_smbus_read_byte_data(data->client, LM73_REG_CTRL);
 	if (ctrl < 0)
 		goto abort;
 	data->ctrl = ctrl;
@@ -183,7 +181,7 @@ static SENSOR_DEVICE_ATTR(temp1_max_alarm, S_IRUGO,
 static SENSOR_DEVICE_ATTR(temp1_min_alarm, S_IRUGO,
 			show_maxmin_alarm, NULL, LM73_CTRL_LO_SHIFT);
 
-static struct attribute *lm73_attributes[] = {
+static struct attribute *lm73_attrs[] = {
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	&sensor_dev_attr_temp1_max.dev_attr.attr,
 	&sensor_dev_attr_temp1_min.dev_attr.attr,
@@ -192,10 +190,7 @@ static struct attribute *lm73_attributes[] = {
 	&sensor_dev_attr_temp1_min_alarm.dev_attr.attr,
 	NULL
 };
-
-static const struct attribute_group lm73_group = {
-	.attrs = lm73_attributes,
-};
+ATTRIBUTE_GROUPS(lm73);
 
 /*-----------------------------------------------------------------------*/
 
@@ -204,16 +199,16 @@ static const struct attribute_group lm73_group = {
 static int
 lm73_probe(struct i2c_client *client, const struct i2c_device_id *id)
 {
-	int status;
+	struct device *dev = &client->dev;
+	struct device *hwmon_dev;
 	struct lm73_data *data;
 	int ctrl;
 
-	data = devm_kzalloc(&client->dev, sizeof(struct lm73_data),
-			    GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(struct lm73_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->lock);
 
 	ctrl = i2c_smbus_read_byte_data(client, LM73_REG_CTRL);
@@ -221,33 +216,13 @@ lm73_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		return ctrl;
 	data->ctrl = ctrl;
 
-	/* Register sysfs hooks */
-	status = sysfs_create_group(&client->dev.kobj, &lm73_group);
-	if (status)
-		return status;
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		status = PTR_ERR(data->hwmon_dev);
-		goto exit_remove;
-	}
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data, lm73_groups);
+	if (IS_ERR(hwmon_dev))
+		return PTR_ERR(hwmon_dev);
 
-	dev_info(&client->dev, "%s: sensor '%s'\n",
-		 dev_name(data->hwmon_dev), client->name);
-
-	return 0;
-
-exit_remove:
-	sysfs_remove_group(&client->dev.kobj, &lm73_group);
-	return status;
-}
-
-static int lm73_remove(struct i2c_client *client)
-{
-	struct lm73_data *data = i2c_get_clientdata(client);
+	dev_info(dev, "sensor '%s'\n", client->name);
 
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &lm73_group);
 	return 0;
 }
 
@@ -300,7 +275,6 @@ static struct i2c_driver lm73_driver = {
 		.name	= "lm73",
 	},
 	.probe		= lm73_probe,
-	.remove		= lm73_remove,
 	.id_table	= lm73_ids,
 	.detect		= lm73_detect,
 	.address_list	= normal_i2c,
-- 
cgit 


From 8d3735522fb192738d7161865d41688f10983613 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sun, 1 Sep 2013 22:49:25 -0700
Subject: hwmon: (max6697) Convert to use
 devm_hwmon_device_register_with_groups

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/max6697.c | 54 ++++++++++++++++---------------------------------
 1 file changed, 17 insertions(+), 37 deletions(-)

diff --git a/drivers/hwmon/max6697.c b/drivers/hwmon/max6697.c
index a41b5f3fc506..0af910a479ab 100644
--- a/drivers/hwmon/max6697.c
+++ b/drivers/hwmon/max6697.c
@@ -77,7 +77,7 @@ struct max6697_chip_data {
 };
 
 struct max6697_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 
 	enum chips type;
 	const struct max6697_chip_data *chip;
@@ -181,8 +181,8 @@ static const struct max6697_chip_data max6697_chip_data[] = {
 
 static struct max6697_data *max6697_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct max6697_data *data = i2c_get_clientdata(client);
+	struct max6697_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	struct max6697_data *ret = data;
 	int val;
 	int i;
@@ -303,8 +303,7 @@ static ssize_t set_temp(struct device *dev,
 {
 	int nr = to_sensor_dev_attr_2(devattr)->nr;
 	int index = to_sensor_dev_attr_2(devattr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct max6697_data *data = i2c_get_clientdata(client);
+	struct max6697_data *data = dev_get_drvdata(dev);
 	long temp;
 	int ret;
 
@@ -316,7 +315,7 @@ static ssize_t set_temp(struct device *dev,
 	temp = DIV_ROUND_CLOSEST(temp, 1000) + data->temp_offset;
 	temp = clamp_val(temp, 0, data->type == max6581 ? 255 : 127);
 	data->temp[nr][index] = temp;
-	ret = i2c_smbus_write_byte_data(client,
+	ret = i2c_smbus_write_byte_data(data->client,
 					index == 2 ? MAX6697_REG_MAX[nr]
 						   : MAX6697_REG_CRIT[nr],
 					temp);
@@ -405,8 +404,7 @@ static umode_t max6697_is_visible(struct kobject *kobj, struct attribute *attr,
 				  int index)
 {
 	struct device *dev = container_of(kobj, struct device, kobj);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct max6697_data *data = i2c_get_clientdata(client);
+	struct max6697_data *data = dev_get_drvdata(dev);
 	const struct max6697_chip_data *chip = data->chip;
 	int channel = index / 6;	/* channel number */
 	int nr = index % 6;		/* attribute index within channel */
@@ -489,6 +487,7 @@ static struct attribute *max6697_attributes[] = {
 static const struct attribute_group max6697_group = {
 	.attrs = max6697_attributes, .is_visible = max6697_is_visible,
 };
+__ATTRIBUTE_GROUPS(max6697);
 
 static void max6697_get_config_of(struct device_node *node,
 				  struct max6697_platform_data *pdata)
@@ -525,9 +524,9 @@ static void max6697_get_config_of(struct device_node *node,
 	}
 }
 
-static int max6697_init_chip(struct i2c_client *client)
+static int max6697_init_chip(struct max6697_data *data,
+			     struct i2c_client *client)
 {
-	struct max6697_data *data = i2c_get_clientdata(client);
 	struct max6697_platform_data *pdata = dev_get_platdata(&client->dev);
 	struct max6697_platform_data p;
 	const struct max6697_chip_data *chip = data->chip;
@@ -625,6 +624,7 @@ static int max6697_probe(struct i2c_client *client,
 	struct i2c_adapter *adapter = client->adapter;
 	struct device *dev = &client->dev;
 	struct max6697_data *data;
+	struct device *hwmon_dev;
 	int err;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
@@ -636,37 +636,18 @@ static int max6697_probe(struct i2c_client *client,
 
 	data->type = id->driver_data;
 	data->chip = &max6697_chip_data[data->type];
-
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->update_lock);
 
-	err = max6697_init_chip(client);
+	err = max6697_init_chip(data, client);
 	if (err)
 		return err;
 
-	err = sysfs_create_group(&client->dev.kobj, &max6697_group);
-	if (err)
-		return err;
-
-	data->hwmon_dev = hwmon_device_register(dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto error;
-	}
-
-	return 0;
-
-error:
-	sysfs_remove_group(&client->dev.kobj, &max6697_group);
-	return err;
-}
-
-static int max6697_remove(struct i2c_client *client)
-{
-	struct max6697_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &max6697_group);
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data,
+							   max6697_groups);
+	if (IS_ERR(hwmon_dev))
+		return PTR_ERR(hwmon_dev);
 
 	return 0;
 }
@@ -692,7 +673,6 @@ static struct i2c_driver max6697_driver = {
 		.name	= "max6697",
 	},
 	.probe = max6697_probe,
-	.remove	= max6697_remove,
 	.id_table = max6697_id,
 };
 
-- 
cgit 


From 38c75dc36dd368d10c4d0030665ec58565e4259b Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Mon, 2 Sep 2013 11:31:28 -0700
Subject: hwmon: (max16065) Convert to use
 devm_hwmon_device_register_with_groups

Modify code to use is_visible to determine if an attribute should be created
or not, then use devm_hwmon_device_register_with_groups to create the hwmon
device and all attributes in one operation.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/max16065.c | 124 ++++++++++++++++++++---------------------------
 1 file changed, 52 insertions(+), 72 deletions(-)

diff --git a/drivers/hwmon/max16065.c b/drivers/hwmon/max16065.c
index 2fa2c02f5569..d4efc79d7b93 100644
--- a/drivers/hwmon/max16065.c
+++ b/drivers/hwmon/max16065.c
@@ -83,7 +83,8 @@ static const bool max16065_have_current[] = {
 
 struct max16065_data {
 	enum chips type;
-	struct device *hwmon_dev;
+	struct i2c_client *client;
+	const struct attribute_group *groups[4];
 	struct mutex update_lock;
 	bool valid;
 	unsigned long last_updated; /* in jiffies */
@@ -144,8 +145,8 @@ static int max16065_read_adc(struct i2c_client *client, int reg)
 
 static struct max16065_data *max16065_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct max16065_data *data = i2c_get_clientdata(client);
+	struct max16065_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 
 	mutex_lock(&data->update_lock);
 	if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
@@ -186,7 +187,7 @@ static ssize_t max16065_show_alarm(struct device *dev,
 
 	val &= (1 << attr2->index);
 	if (val)
-		i2c_smbus_write_byte_data(to_i2c_client(dev),
+		i2c_smbus_write_byte_data(data->client,
 					  MAX16065_FAULT(attr2->nr), val);
 
 	return snprintf(buf, PAGE_SIZE, "%d\n", !!val);
@@ -223,8 +224,7 @@ static ssize_t max16065_set_limit(struct device *dev,
 				  const char *buf, size_t count)
 {
 	struct sensor_device_attribute_2 *attr2 = to_sensor_dev_attr_2(da);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct max16065_data *data = i2c_get_clientdata(client);
+	struct max16065_data *data = dev_get_drvdata(dev);
 	unsigned long val;
 	int err;
 	int limit;
@@ -238,7 +238,7 @@ static ssize_t max16065_set_limit(struct device *dev,
 	mutex_lock(&data->update_lock);
 	data->limit[attr2->nr][attr2->index]
 	  = LIMIT_TO_MV(limit, data->range[attr2->index]);
-	i2c_smbus_write_byte_data(client,
+	i2c_smbus_write_byte_data(data->client,
 				  MAX16065_LIMIT(attr2->nr, attr2->index),
 				  limit);
 	mutex_unlock(&data->update_lock);
@@ -250,8 +250,7 @@ static ssize_t max16065_show_limit(struct device *dev,
 				   struct device_attribute *da, char *buf)
 {
 	struct sensor_device_attribute_2 *attr2 = to_sensor_dev_attr_2(da);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct max16065_data *data = i2c_get_clientdata(client);
+	struct max16065_data *data = dev_get_drvdata(dev);
 
 	return snprintf(buf, PAGE_SIZE, "%d\n",
 			data->limit[attr2->nr][attr2->index]);
@@ -516,8 +515,32 @@ static struct attribute *max16065_max_attributes[] = {
 	NULL
 };
 
+static umode_t max16065_basic_is_visible(struct kobject *kobj,
+					 struct attribute *a, int n)
+{
+	struct device *dev = container_of(kobj, struct device, kobj);
+	struct max16065_data *data = dev_get_drvdata(dev);
+	int index = n / 4;
+
+	if (index >= data->num_adc || !data->range[index])
+		return 0;
+	return a->mode;
+}
+
+static umode_t max16065_secondary_is_visible(struct kobject *kobj,
+					     struct attribute *a, int index)
+{
+	struct device *dev = container_of(kobj, struct device, kobj);
+	struct max16065_data *data = dev_get_drvdata(dev);
+
+	if (index >= data->num_adc)
+		return 0;
+	return a->mode;
+}
+
 static const struct attribute_group max16065_basic_group = {
 	.attrs = max16065_basic_attributes,
+	.is_visible = max16065_basic_is_visible,
 };
 
 static const struct attribute_group max16065_current_group = {
@@ -526,38 +549,35 @@ static const struct attribute_group max16065_current_group = {
 
 static const struct attribute_group max16065_min_group = {
 	.attrs = max16065_min_attributes,
+	.is_visible = max16065_secondary_is_visible,
 };
 
 static const struct attribute_group max16065_max_group = {
 	.attrs = max16065_max_attributes,
+	.is_visible = max16065_secondary_is_visible,
 };
 
-static void max16065_cleanup(struct i2c_client *client)
-{
-	sysfs_remove_group(&client->dev.kobj, &max16065_max_group);
-	sysfs_remove_group(&client->dev.kobj, &max16065_min_group);
-	sysfs_remove_group(&client->dev.kobj, &max16065_current_group);
-	sysfs_remove_group(&client->dev.kobj, &max16065_basic_group);
-}
-
 static int max16065_probe(struct i2c_client *client,
 			  const struct i2c_device_id *id)
 {
 	struct i2c_adapter *adapter = client->adapter;
 	struct max16065_data *data;
-	int i, j, val, ret;
+	struct device *dev = &client->dev;
+	struct device *hwmon_dev;
+	int i, j, val;
 	bool have_secondary;		/* true if chip has secondary limits */
 	bool secondary_is_max = false;	/* secondary limits reflect max */
+	int groups = 0;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA
 				     | I2C_FUNC_SMBUS_READ_WORD_DATA))
 		return -ENODEV;
 
-	data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
 	if (unlikely(!data))
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->update_lock);
 
 	data->num_adc = max16065_num_adc[id->driver_data];
@@ -596,38 +616,16 @@ static int max16065_probe(struct i2c_client *client,
 		}
 	}
 
-	/* Register sysfs hooks */
-	for (i = 0; i < data->num_adc * 4; i++) {
-		/* Do not create sysfs entry if channel is disabled */
-		if (!data->range[i / 4])
-			continue;
-
-		ret = sysfs_create_file(&client->dev.kobj,
-					max16065_basic_attributes[i]);
-		if (unlikely(ret))
-			goto out;
-	}
-
-	if (have_secondary) {
-		struct attribute **attr = secondary_is_max ?
-		  max16065_max_attributes : max16065_min_attributes;
-
-		for (i = 0; i < data->num_adc; i++) {
-			if (!data->range[i])
-				continue;
-
-			ret = sysfs_create_file(&client->dev.kobj, attr[i]);
-			if (unlikely(ret))
-				goto out;
-		}
-	}
+	/* sysfs hooks */
+	data->groups[groups++] = &max16065_basic_group;
+	if (have_secondary)
+		data->groups[groups++] = secondary_is_max ?
+			&max16065_max_group : &max16065_min_group;
 
 	if (data->have_current) {
 		val = i2c_smbus_read_byte_data(client, MAX16065_CURR_CONTROL);
-		if (unlikely(val < 0)) {
-			ret = val;
-			goto out;
-		}
+		if (unlikely(val < 0))
+			return val;
 		if (val & MAX16065_CURR_ENABLE) {
 			/*
 			 * Current gain is 6, 12, 24, 48 based on values in
@@ -636,33 +634,16 @@ static int max16065_probe(struct i2c_client *client,
 			data->curr_gain = 6 << ((val >> 2) & 0x03);
 			data->range[MAX16065_NUM_ADC]
 			  = max16065_csp_adc_range[(val >> 1) & 0x01];
-			ret = sysfs_create_group(&client->dev.kobj,
-						 &max16065_current_group);
-			if (unlikely(ret))
-				goto out;
+			data->groups[groups++] = &max16065_current_group;
 		} else {
 			data->have_current = false;
 		}
 	}
 
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (unlikely(IS_ERR(data->hwmon_dev))) {
-		ret = PTR_ERR(data->hwmon_dev);
-		goto out;
-	}
-	return 0;
-
-out:
-	max16065_cleanup(client);
-	return ret;
-}
-
-static int max16065_remove(struct i2c_client *client)
-{
-	struct max16065_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	max16065_cleanup(client);
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data, data->groups);
+	if (unlikely(IS_ERR(hwmon_dev)))
+		return PTR_ERR(hwmon_dev);
 
 	return 0;
 }
@@ -685,7 +666,6 @@ static struct i2c_driver max16065_driver = {
 		.name = "max16065",
 	},
 	.probe = max16065_probe,
-	.remove = max16065_remove,
 	.id_table = max16065_id,
 };
 
-- 
cgit 


From 468bf0e395363c12a41f508cc202b8d33f201807 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Mon, 2 Sep 2013 13:16:19 -0700
Subject: hwmon: (ina2xx) Convert to use devm_hwmon_device_register_with_groups

Also introduce dev variable in probe function to simplify access
to client->dev, and use new macro ATTRIBUTE_GROUPS to declare
attribute groups.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/ina2xx.c | 64 +++++++++++++++++---------------------------------
 1 file changed, 21 insertions(+), 43 deletions(-)

diff --git a/drivers/hwmon/ina2xx.c b/drivers/hwmon/ina2xx.c
index 70a39a8ac016..93d26e8af3e2 100644
--- a/drivers/hwmon/ina2xx.c
+++ b/drivers/hwmon/ina2xx.c
@@ -78,7 +78,7 @@ struct ina2xx_config {
 };
 
 struct ina2xx_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	const struct ina2xx_config *config;
 
 	struct mutex update_lock;
@@ -112,8 +112,8 @@ static const struct ina2xx_config ina2xx_config[] = {
 
 static struct ina2xx_data *ina2xx_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ina2xx_data *data = i2c_get_clientdata(client);
+	struct ina2xx_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	struct ina2xx_data *ret = data;
 
 	mutex_lock(&data->update_lock);
@@ -203,41 +203,39 @@ static SENSOR_DEVICE_ATTR(power1_input, S_IRUGO, ina2xx_show_value, NULL,
 			  INA2XX_POWER);
 
 /* pointers to created device attributes */
-static struct attribute *ina2xx_attributes[] = {
+static struct attribute *ina2xx_attrs[] = {
 	&sensor_dev_attr_in0_input.dev_attr.attr,
 	&sensor_dev_attr_in1_input.dev_attr.attr,
 	&sensor_dev_attr_curr1_input.dev_attr.attr,
 	&sensor_dev_attr_power1_input.dev_attr.attr,
 	NULL,
 };
-
-static const struct attribute_group ina2xx_group = {
-	.attrs = ina2xx_attributes,
-};
+ATTRIBUTE_GROUPS(ina2xx);
 
 static int ina2xx_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	struct i2c_adapter *adapter = client->adapter;
-	struct ina2xx_data *data;
 	struct ina2xx_platform_data *pdata;
-	int ret;
-	u32 val;
+	struct device *dev = &client->dev;
+	struct ina2xx_data *data;
+	struct device *hwmon_dev;
 	long shunt = 10000; /* default shunt value 10mOhms */
+	u32 val;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA))
 		return -ENODEV;
 
-	data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	if (dev_get_platdata(&client->dev)) {
-		pdata = dev_get_platdata(&client->dev);
+	if (dev_get_platdata(dev)) {
+		pdata = dev_get_platdata(dev);
 		shunt = pdata->shunt_uohms;
-	} else if (!of_property_read_u32(client->dev.of_node,
-				"shunt-resistor", &val)) {
-			shunt = val;
+	} else if (!of_property_read_u32(dev->of_node,
+					 "shunt-resistor", &val)) {
+		shunt = val;
 	}
 
 	if (shunt <= 0)
@@ -255,37 +253,18 @@ static int ina2xx_probe(struct i2c_client *client,
 	i2c_smbus_write_word_swapped(client, INA2XX_CALIBRATION,
 				     data->config->calibration_factor / shunt);
 
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->update_lock);
 
-	ret = sysfs_create_group(&client->dev.kobj, &ina2xx_group);
-	if (ret)
-		return ret;
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		ret = PTR_ERR(data->hwmon_dev);
-		goto out_err_hwmon;
-	}
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data, ina2xx_groups);
+	if (IS_ERR(hwmon_dev))
+		return PTR_ERR(hwmon_dev);
 
-	dev_info(&client->dev, "power monitor %s (Rshunt = %li uOhm)\n",
+	dev_info(dev, "power monitor %s (Rshunt = %li uOhm)\n",
 		 id->name, shunt);
 
 	return 0;
-
-out_err_hwmon:
-	sysfs_remove_group(&client->dev.kobj, &ina2xx_group);
-	return ret;
-}
-
-static int ina2xx_remove(struct i2c_client *client)
-{
-	struct ina2xx_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &ina2xx_group);
-
-	return 0;
 }
 
 static const struct i2c_device_id ina2xx_id[] = {
@@ -302,7 +281,6 @@ static struct i2c_driver ina2xx_driver = {
 		.name	= "ina2xx",
 	},
 	.probe		= ina2xx_probe,
-	.remove		= ina2xx_remove,
 	.id_table	= ina2xx_id,
 };
 
-- 
cgit 


From d3f5d551df68f3b1135f212ce61eaad21fe7b42d Mon Sep 17 00:00:00 2001
From: Ankur Kishore <a-kishore@ti.com>
Date: Sat, 12 Oct 2013 15:44:21 +0530
Subject: ARM: OMAP2+: CM: cm_inst offset s16->u16

Most of the AM43x CM reg address offsets are with MSB bit '1' (on
16-bit value) leading to arithmetic miscalculations while calculating
CLOCK ENABLE register's address because cm_inst field was a type of
"const s16", so make it "const u16".

Also modify relevant functions so as to take care of the above.

[afzal@ti.com: fixup and cleanup]

Signed-off-by: Ankur Kishore <a-kishore@ti.com>
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Acked-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/clockdomain.h |  2 +-
 arch/arm/mach-omap2/cm33xx.c      | 16 ++++++++--------
 arch/arm/mach-omap2/cm33xx.h      | 10 +++++-----
 arch/arm/mach-omap2/cminst44xx.c  | 20 ++++++++++----------
 arch/arm/mach-omap2/cminst44xx.h  | 26 +++++++++++++-------------
 5 files changed, 37 insertions(+), 37 deletions(-)

diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h
index 4b03394fa0c5..5431b0cae665 100644
--- a/arch/arm/mach-omap2/clockdomain.h
+++ b/arch/arm/mach-omap2/clockdomain.h
@@ -132,7 +132,7 @@ struct clockdomain {
 	u8 _flags;
 	const u8 dep_bit;
 	const u8 prcm_partition;
-	const s16 cm_inst;
+	const u16 cm_inst;
 	const u16 clkdm_offs;
 	struct clkdm_dep *wkdep_srcs;
 	struct clkdm_dep *sleepdep_srcs;
diff --git a/arch/arm/mach-omap2/cm33xx.c b/arch/arm/mach-omap2/cm33xx.c
index 325a51576576..40a22e5649ae 100644
--- a/arch/arm/mach-omap2/cm33xx.c
+++ b/arch/arm/mach-omap2/cm33xx.c
@@ -48,13 +48,13 @@
 /* Private functions */
 
 /* Read a register in a CM instance */
-static inline u32 am33xx_cm_read_reg(s16 inst, u16 idx)
+static inline u32 am33xx_cm_read_reg(u16 inst, u16 idx)
 {
 	return __raw_readl(cm_base + inst + idx);
 }
 
 /* Write into a register in a CM */
-static inline void am33xx_cm_write_reg(u32 val, s16 inst, u16 idx)
+static inline void am33xx_cm_write_reg(u32 val, u16 inst, u16 idx)
 {
 	__raw_writel(val, cm_base + inst + idx);
 }
@@ -138,7 +138,7 @@ static bool _is_module_ready(u16 inst, s16 cdoffs, u16 clkctrl_offs)
  * @c must be the unshifted value for CLKTRCTRL - i.e., this function
  * will handle the shift itself.
  */
-static void _clktrctrl_write(u8 c, s16 inst, u16 cdoffs)
+static void _clktrctrl_write(u8 c, u16 inst, u16 cdoffs)
 {
 	u32 v;
 
@@ -158,7 +158,7 @@ static void _clktrctrl_write(u8 c, s16 inst, u16 cdoffs)
  * Returns true if the clockdomain referred to by (@inst, @cdoffs)
  * is in hardware-supervised idle mode, or 0 otherwise.
  */
-bool am33xx_cm_is_clkdm_in_hwsup(s16 inst, u16 cdoffs)
+bool am33xx_cm_is_clkdm_in_hwsup(u16 inst, u16 cdoffs)
 {
 	u32 v;
 
@@ -177,7 +177,7 @@ bool am33xx_cm_is_clkdm_in_hwsup(s16 inst, u16 cdoffs)
  * Put a clockdomain referred to by (@inst, @cdoffs) into
  * hardware-supervised idle mode.  No return value.
  */
-void am33xx_cm_clkdm_enable_hwsup(s16 inst, u16 cdoffs)
+void am33xx_cm_clkdm_enable_hwsup(u16 inst, u16 cdoffs)
 {
 	_clktrctrl_write(OMAP34XX_CLKSTCTRL_ENABLE_AUTO, inst, cdoffs);
 }
@@ -191,7 +191,7 @@ void am33xx_cm_clkdm_enable_hwsup(s16 inst, u16 cdoffs)
  * software-supervised idle mode, i.e., controlled manually by the
  * Linux OMAP clockdomain code.  No return value.
  */
-void am33xx_cm_clkdm_disable_hwsup(s16 inst, u16 cdoffs)
+void am33xx_cm_clkdm_disable_hwsup(u16 inst, u16 cdoffs)
 {
 	_clktrctrl_write(OMAP34XX_CLKSTCTRL_DISABLE_AUTO, inst, cdoffs);
 }
@@ -204,7 +204,7 @@ void am33xx_cm_clkdm_disable_hwsup(s16 inst, u16 cdoffs)
  * Put a clockdomain referred to by (@inst, @cdoffs) into idle
  * No return value.
  */
-void am33xx_cm_clkdm_force_sleep(s16 inst, u16 cdoffs)
+void am33xx_cm_clkdm_force_sleep(u16 inst, u16 cdoffs)
 {
 	_clktrctrl_write(OMAP34XX_CLKSTCTRL_FORCE_SLEEP, inst, cdoffs);
 }
@@ -217,7 +217,7 @@ void am33xx_cm_clkdm_force_sleep(s16 inst, u16 cdoffs)
  * Take a clockdomain referred to by (@inst, @cdoffs) out of idle,
  * waking it up.  No return value.
  */
-void am33xx_cm_clkdm_force_wakeup(s16 inst, u16 cdoffs)
+void am33xx_cm_clkdm_force_wakeup(u16 inst, u16 cdoffs)
 {
 	_clktrctrl_write(OMAP34XX_CLKSTCTRL_FORCE_WAKEUP, inst, cdoffs);
 }
diff --git a/arch/arm/mach-omap2/cm33xx.h b/arch/arm/mach-omap2/cm33xx.h
index 9d1f4fcdebbb..757320b7c0b3 100644
--- a/arch/arm/mach-omap2/cm33xx.h
+++ b/arch/arm/mach-omap2/cm33xx.h
@@ -377,11 +377,11 @@
 
 
 #ifndef __ASSEMBLER__
-extern bool am33xx_cm_is_clkdm_in_hwsup(s16 inst, u16 cdoffs);
-extern void am33xx_cm_clkdm_enable_hwsup(s16 inst, u16 cdoffs);
-extern void am33xx_cm_clkdm_disable_hwsup(s16 inst, u16 cdoffs);
-extern void am33xx_cm_clkdm_force_sleep(s16 inst, u16 cdoffs);
-extern void am33xx_cm_clkdm_force_wakeup(s16 inst, u16 cdoffs);
+bool am33xx_cm_is_clkdm_in_hwsup(u16 inst, u16 cdoffs);
+void am33xx_cm_clkdm_enable_hwsup(u16 inst, u16 cdoffs);
+void am33xx_cm_clkdm_disable_hwsup(u16 inst, u16 cdoffs);
+void am33xx_cm_clkdm_force_sleep(u16 inst, u16 cdoffs);
+void am33xx_cm_clkdm_force_wakeup(u16 inst, u16 cdoffs);
 
 #if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
 extern int am33xx_cm_wait_module_idle(u16 inst, s16 cdoffs,
diff --git a/arch/arm/mach-omap2/cminst44xx.c b/arch/arm/mach-omap2/cminst44xx.c
index f0290f5566fe..e95722230a0e 100644
--- a/arch/arm/mach-omap2/cminst44xx.c
+++ b/arch/arm/mach-omap2/cminst44xx.c
@@ -111,7 +111,7 @@ static bool _is_module_ready(u8 part, u16 inst, s16 cdoffs, u16 clkctrl_offs)
 /* Public functions */
 
 /* Read a register in a CM instance */
-u32 omap4_cminst_read_inst_reg(u8 part, s16 inst, u16 idx)
+u32 omap4_cminst_read_inst_reg(u8 part, u16 inst, u16 idx)
 {
 	BUG_ON(part >= OMAP4_MAX_PRCM_PARTITIONS ||
 	       part == OMAP4430_INVALID_PRCM_PARTITION ||
@@ -120,7 +120,7 @@ u32 omap4_cminst_read_inst_reg(u8 part, s16 inst, u16 idx)
 }
 
 /* Write into a register in a CM instance */
-void omap4_cminst_write_inst_reg(u32 val, u8 part, s16 inst, u16 idx)
+void omap4_cminst_write_inst_reg(u32 val, u8 part, u16 inst, u16 idx)
 {
 	BUG_ON(part >= OMAP4_MAX_PRCM_PARTITIONS ||
 	       part == OMAP4430_INVALID_PRCM_PARTITION ||
@@ -129,7 +129,7 @@ void omap4_cminst_write_inst_reg(u32 val, u8 part, s16 inst, u16 idx)
 }
 
 /* Read-modify-write a register in CM1. Caller must lock */
-u32 omap4_cminst_rmw_inst_reg_bits(u32 mask, u32 bits, u8 part, s16 inst,
+u32 omap4_cminst_rmw_inst_reg_bits(u32 mask, u32 bits, u8 part, u16 inst,
 				   s16 idx)
 {
 	u32 v;
@@ -142,12 +142,12 @@ u32 omap4_cminst_rmw_inst_reg_bits(u32 mask, u32 bits, u8 part, s16 inst,
 	return v;
 }
 
-u32 omap4_cminst_set_inst_reg_bits(u32 bits, u8 part, s16 inst, s16 idx)
+u32 omap4_cminst_set_inst_reg_bits(u32 bits, u8 part, u16 inst, s16 idx)
 {
 	return omap4_cminst_rmw_inst_reg_bits(bits, bits, part, inst, idx);
 }
 
-u32 omap4_cminst_clear_inst_reg_bits(u32 bits, u8 part, s16 inst, s16 idx)
+u32 omap4_cminst_clear_inst_reg_bits(u32 bits, u8 part, u16 inst, s16 idx)
 {
 	return omap4_cminst_rmw_inst_reg_bits(bits, 0x0, part, inst, idx);
 }
@@ -177,7 +177,7 @@ u32 omap4_cminst_read_inst_reg_bits(u8 part, u16 inst, s16 idx, u32 mask)
  * @c must be the unshifted value for CLKTRCTRL - i.e., this function
  * will handle the shift itself.
  */
-static void _clktrctrl_write(u8 c, u8 part, s16 inst, u16 cdoffs)
+static void _clktrctrl_write(u8 c, u8 part, u16 inst, u16 cdoffs)
 {
 	u32 v;
 
@@ -196,7 +196,7 @@ static void _clktrctrl_write(u8 c, u8 part, s16 inst, u16 cdoffs)
  * Returns true if the clockdomain referred to by (@part, @inst, @cdoffs)
  * is in hardware-supervised idle mode, or 0 otherwise.
  */
-bool omap4_cminst_is_clkdm_in_hwsup(u8 part, s16 inst, u16 cdoffs)
+bool omap4_cminst_is_clkdm_in_hwsup(u8 part, u16 inst, u16 cdoffs)
 {
 	u32 v;
 
@@ -216,7 +216,7 @@ bool omap4_cminst_is_clkdm_in_hwsup(u8 part, s16 inst, u16 cdoffs)
  * Put a clockdomain referred to by (@part, @inst, @cdoffs) into
  * hardware-supervised idle mode.  No return value.
  */
-void omap4_cminst_clkdm_enable_hwsup(u8 part, s16 inst, u16 cdoffs)
+void omap4_cminst_clkdm_enable_hwsup(u8 part, u16 inst, u16 cdoffs)
 {
 	_clktrctrl_write(OMAP34XX_CLKSTCTRL_ENABLE_AUTO, part, inst, cdoffs);
 }
@@ -231,7 +231,7 @@ void omap4_cminst_clkdm_enable_hwsup(u8 part, s16 inst, u16 cdoffs)
  * software-supervised idle mode, i.e., controlled manually by the
  * Linux OMAP clockdomain code.  No return value.
  */
-void omap4_cminst_clkdm_disable_hwsup(u8 part, s16 inst, u16 cdoffs)
+void omap4_cminst_clkdm_disable_hwsup(u8 part, u16 inst, u16 cdoffs)
 {
 	_clktrctrl_write(OMAP34XX_CLKSTCTRL_DISABLE_AUTO, part, inst, cdoffs);
 }
@@ -245,7 +245,7 @@ void omap4_cminst_clkdm_disable_hwsup(u8 part, s16 inst, u16 cdoffs)
  * Take a clockdomain referred to by (@part, @inst, @cdoffs) out of idle,
  * waking it up.  No return value.
  */
-void omap4_cminst_clkdm_force_wakeup(u8 part, s16 inst, u16 cdoffs)
+void omap4_cminst_clkdm_force_wakeup(u8 part, u16 inst, u16 cdoffs)
 {
 	_clktrctrl_write(OMAP34XX_CLKSTCTRL_FORCE_WAKEUP, part, inst, cdoffs);
 }
diff --git a/arch/arm/mach-omap2/cminst44xx.h b/arch/arm/mach-omap2/cminst44xx.h
index bd7bab889745..7f56ea444bc4 100644
--- a/arch/arm/mach-omap2/cminst44xx.h
+++ b/arch/arm/mach-omap2/cminst44xx.h
@@ -11,11 +11,11 @@
 #ifndef __ARCH_ASM_MACH_OMAP2_CMINST44XX_H
 #define __ARCH_ASM_MACH_OMAP2_CMINST44XX_H
 
-extern bool omap4_cminst_is_clkdm_in_hwsup(u8 part, s16 inst, u16 cdoffs);
-extern void omap4_cminst_clkdm_enable_hwsup(u8 part, s16 inst, u16 cdoffs);
-extern void omap4_cminst_clkdm_disable_hwsup(u8 part, s16 inst, u16 cdoffs);
-extern void omap4_cminst_clkdm_force_sleep(u8 part, s16 inst, u16 cdoffs);
-extern void omap4_cminst_clkdm_force_wakeup(u8 part, s16 inst, u16 cdoffs);
+bool omap4_cminst_is_clkdm_in_hwsup(u8 part, u16 inst, u16 cdoffs);
+void omap4_cminst_clkdm_enable_hwsup(u8 part, u16 inst, u16 cdoffs);
+void omap4_cminst_clkdm_disable_hwsup(u8 part, u16 inst, u16 cdoffs);
+void omap4_cminst_clkdm_force_sleep(u8 part, u16 inst, u16 cdoffs);
+void omap4_cminst_clkdm_force_wakeup(u8 part, u16 inst, u16 cdoffs);
 extern int omap4_cminst_wait_module_ready(u8 part, u16 inst, s16 cdoffs, u16 clkctrl_offs);
 extern int omap4_cminst_wait_module_idle(u8 part, u16 inst, s16 cdoffs,
 					 u16 clkctrl_offs);
@@ -27,14 +27,14 @@ extern void omap4_cminst_module_disable(u8 part, u16 inst, s16 cdoffs,
  * In an ideal world, we would not export these low-level functions,
  * but this will probably take some time to fix properly
  */
-extern u32 omap4_cminst_read_inst_reg(u8 part, s16 inst, u16 idx);
-extern void omap4_cminst_write_inst_reg(u32 val, u8 part, s16 inst, u16 idx);
-extern u32 omap4_cminst_rmw_inst_reg_bits(u32 mask, u32 bits, u8 part,
-					   s16 inst, s16 idx);
-extern u32 omap4_cminst_set_inst_reg_bits(u32 bits, u8 part, s16 inst,
-					   s16 idx);
-extern u32 omap4_cminst_clear_inst_reg_bits(u32 bits, u8 part, s16 inst,
-					   s16 idx);
+u32 omap4_cminst_read_inst_reg(u8 part, u16 inst, u16 idx);
+void omap4_cminst_write_inst_reg(u32 val, u8 part, u16 inst, u16 idx);
+u32 omap4_cminst_rmw_inst_reg_bits(u32 mask, u32 bits, u8 part,
+				   u16 inst, s16 idx);
+u32 omap4_cminst_set_inst_reg_bits(u32 bits, u8 part, u16 inst,
+				   s16 idx);
+u32 omap4_cminst_clear_inst_reg_bits(u32 bits, u8 part, u16 inst,
+				     s16 idx);
 extern u32 omap4_cminst_read_inst_reg_bits(u8 part, u16 inst, s16 idx,
 					   u32 mask);
 
-- 
cgit 


From 26649467ad089fdf66f7f95017132788b2c0af35 Mon Sep 17 00:00:00 2001
From: Afzal Mohammed <afzal@ti.com>
Date: Sat, 12 Oct 2013 15:44:46 +0530
Subject: ARM: OMAP2+: hwmod: AM335x/AM43x: move common data

AM335x and AM43x have most of the IP's and interconnect's similar.
Instead of adding redundant hwmod data, move interconnects and hwmod
similar between AM335x and AM43x to a common location. This helps in
reuse on AM43x.

AM335x interconnects that has difference and not present in AM43x are
not moved. ocp clock of those in l4_wkup is fed from a different source
for AM43x. Also pruss interconnect is different.

AM335x hwmod's that has difference other than prcm register offsets
(difference is in clocks of wkup_m3, control, gpio0, debugss and clock
domain of l4_hs, adc_tsc as compared to AM43x) and those that are not
present in AM43x are not moved.

Signed-off-by: Afzal Mohammed <afzal@ti.com>
Acked-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/Makefile                       |    2 +
 .../mach-omap2/omap_hwmod_33xx_43xx_common_data.h  |  160 ++
 .../omap_hwmod_33xx_43xx_interconnect_data.c       |  643 ++++++
 .../mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c | 1375 ++++++++++++
 arch/arm/mach-omap2/omap_hwmod_33xx_data.c         | 2262 ++------------------
 5 files changed, 2323 insertions(+), 2119 deletions(-)
 create mode 100644 arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h
 create mode 100644 arch/arm/mach-omap2/omap_hwmod_33xx_43xx_interconnect_data.c
 create mode 100644 arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c

diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index afb457c3135b..07464947d99e 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -210,6 +210,8 @@ obj-$(CONFIG_ARCH_OMAP3)		+= omap_hwmod_2xxx_3xxx_ipblock_data.o
 obj-$(CONFIG_ARCH_OMAP3)		+= omap_hwmod_2xxx_3xxx_interconnect_data.o
 obj-$(CONFIG_ARCH_OMAP3)		+= omap_hwmod_3xxx_data.o
 obj-$(CONFIG_SOC_AM33XX)		+= omap_hwmod_33xx_data.o
+obj-$(CONFIG_SOC_AM33XX)		+= omap_hwmod_33xx_43xx_interconnect_data.o
+obj-$(CONFIG_SOC_AM33XX)		+= omap_hwmod_33xx_43xx_ipblock_data.o
 obj-$(CONFIG_ARCH_OMAP4)		+= omap_hwmod_44xx_data.o
 obj-$(CONFIG_SOC_OMAP5)			+= omap_hwmod_54xx_data.o
 obj-$(CONFIG_SOC_DRA7XX)		+= omap_hwmod_7xx_data.o
diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h
new file mode 100644
index 000000000000..e873e7268935
--- /dev/null
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h
@@ -0,0 +1,160 @@
+/*
+ *
+ * Copyright (C) 2013 Texas Instruments Incorporated
+ *
+ * Data common for AM335x and AM43x
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __ARCH_ARM_MACH_OMAP2_OMAP_HWMOD_33XX_43XX_COMMON_DATA_H
+#define __ARCH_ARM_MACH_OMAP2_OMAP_HWMOD_33XX_43XX_COMMON_DATA_H
+
+extern struct omap_hwmod_ocp_if am33xx_mpu__l3_main;
+extern struct omap_hwmod_ocp_if am33xx_l3_main__l3_s;
+extern struct omap_hwmod_ocp_if am33xx_l3_s__l4_ls;
+extern struct omap_hwmod_ocp_if am33xx_l3_s__l4_wkup;
+extern struct omap_hwmod_ocp_if am33xx_l3_main__l3_instr;
+extern struct omap_hwmod_ocp_if am33xx_mpu__prcm;
+extern struct omap_hwmod_ocp_if am33xx_l3_s__l3_main;
+extern struct omap_hwmod_ocp_if am33xx_pruss__l3_main;
+extern struct omap_hwmod_ocp_if am33xx_gfx__l3_main;
+extern struct omap_hwmod_ocp_if am33xx_l3_main__gfx;
+extern struct omap_hwmod_ocp_if am33xx_l4_wkup__rtc;
+extern struct omap_hwmod_ocp_if am33xx_l4_per__dcan0;
+extern struct omap_hwmod_ocp_if am33xx_l4_per__dcan1;
+extern struct omap_hwmod_ocp_if am33xx_l4_per__gpio1;
+extern struct omap_hwmod_ocp_if am33xx_l4_per__gpio2;
+extern struct omap_hwmod_ocp_if am33xx_l4_per__gpio3;
+extern struct omap_hwmod_ocp_if am33xx_cpgmac0__mdio;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__elm;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__epwmss0;
+extern struct omap_hwmod_ocp_if am33xx_epwmss0__ecap0;
+extern struct omap_hwmod_ocp_if am33xx_epwmss0__eqep0;
+extern struct omap_hwmod_ocp_if am33xx_epwmss0__ehrpwm0;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__epwmss1;
+extern struct omap_hwmod_ocp_if am33xx_epwmss1__ecap1;
+extern struct omap_hwmod_ocp_if am33xx_epwmss1__eqep1;
+extern struct omap_hwmod_ocp_if am33xx_epwmss1__ehrpwm1;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__epwmss2;
+extern struct omap_hwmod_ocp_if am33xx_epwmss2__ecap2;
+extern struct omap_hwmod_ocp_if am33xx_epwmss2__eqep2;
+extern struct omap_hwmod_ocp_if am33xx_epwmss2__ehrpwm2;
+extern struct omap_hwmod_ocp_if am33xx_l3_s__gpmc;
+extern struct omap_hwmod_ocp_if am33xx_l4_per__i2c2;
+extern struct omap_hwmod_ocp_if am33xx_l4_per__i2c3;
+extern struct omap_hwmod_ocp_if am33xx_l4_per__mailbox;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__spinlock;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__mcasp0;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__mcasp1;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__mmc0;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__mmc1;
+extern struct omap_hwmod_ocp_if am33xx_l3_s__mmc2;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__mcspi0;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__mcspi1;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__timer2;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__timer3;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__timer4;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__timer5;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__timer6;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__timer7;
+extern struct omap_hwmod_ocp_if am33xx_l3_main__tpcc;
+extern struct omap_hwmod_ocp_if am33xx_l3_main__tptc0;
+extern struct omap_hwmod_ocp_if am33xx_l3_main__tptc1;
+extern struct omap_hwmod_ocp_if am33xx_l3_main__tptc2;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__uart2;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__uart3;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__uart4;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__uart5;
+extern struct omap_hwmod_ocp_if am33xx_l4_ls__uart6;
+extern struct omap_hwmod_ocp_if am33xx_l3_main__ocmc;
+extern struct omap_hwmod_ocp_if am33xx_l3_main__sha0;
+extern struct omap_hwmod_ocp_if am33xx_l3_main__aes0;
+
+extern struct omap_hwmod am33xx_l3_main_hwmod;
+extern struct omap_hwmod am33xx_l3_s_hwmod;
+extern struct omap_hwmod am33xx_l3_instr_hwmod;
+extern struct omap_hwmod am33xx_l4_ls_hwmod;
+extern struct omap_hwmod am33xx_l4_wkup_hwmod;
+extern struct omap_hwmod am33xx_mpu_hwmod;
+extern struct omap_hwmod am33xx_pruss_hwmod;
+extern struct omap_hwmod am33xx_gfx_hwmod;
+extern struct omap_hwmod am33xx_prcm_hwmod;
+extern struct omap_hwmod am33xx_aes0_hwmod;
+extern struct omap_hwmod am33xx_sha0_hwmod;
+extern struct omap_hwmod am33xx_ocmcram_hwmod;
+extern struct omap_hwmod am33xx_smartreflex0_hwmod;
+extern struct omap_hwmod am33xx_smartreflex1_hwmod;
+extern struct omap_hwmod am33xx_cpgmac0_hwmod;
+extern struct omap_hwmod am33xx_mdio_hwmod;
+extern struct omap_hwmod am33xx_dcan0_hwmod;
+extern struct omap_hwmod am33xx_dcan1_hwmod;
+extern struct omap_hwmod am33xx_elm_hwmod;
+extern struct omap_hwmod am33xx_epwmss0_hwmod;
+extern struct omap_hwmod am33xx_ecap0_hwmod;
+extern struct omap_hwmod am33xx_eqep0_hwmod;
+extern struct omap_hwmod am33xx_ehrpwm0_hwmod;
+extern struct omap_hwmod am33xx_epwmss1_hwmod;
+extern struct omap_hwmod am33xx_ecap1_hwmod;
+extern struct omap_hwmod am33xx_eqep1_hwmod;
+extern struct omap_hwmod am33xx_ehrpwm1_hwmod;
+extern struct omap_hwmod am33xx_epwmss2_hwmod;
+extern struct omap_hwmod am33xx_ecap2_hwmod;
+extern struct omap_hwmod am33xx_eqep2_hwmod;
+extern struct omap_hwmod am33xx_ehrpwm2_hwmod;
+extern struct omap_hwmod am33xx_gpio1_hwmod;
+extern struct omap_hwmod am33xx_gpio2_hwmod;
+extern struct omap_hwmod am33xx_gpio3_hwmod;
+extern struct omap_hwmod am33xx_gpmc_hwmod;
+extern struct omap_hwmod am33xx_i2c1_hwmod;
+extern struct omap_hwmod am33xx_i2c2_hwmod;
+extern struct omap_hwmod am33xx_i2c3_hwmod;
+extern struct omap_hwmod am33xx_mailbox_hwmod;
+extern struct omap_hwmod am33xx_mcasp0_hwmod;
+extern struct omap_hwmod am33xx_mcasp1_hwmod;
+extern struct omap_hwmod am33xx_mmc0_hwmod;
+extern struct omap_hwmod am33xx_mmc1_hwmod;
+extern struct omap_hwmod am33xx_mmc2_hwmod;
+extern struct omap_hwmod am33xx_rtc_hwmod;
+extern struct omap_hwmod am33xx_spi0_hwmod;
+extern struct omap_hwmod am33xx_spi1_hwmod;
+extern struct omap_hwmod am33xx_spinlock_hwmod;
+extern struct omap_hwmod am33xx_timer1_hwmod;
+extern struct omap_hwmod am33xx_timer2_hwmod;
+extern struct omap_hwmod am33xx_timer3_hwmod;
+extern struct omap_hwmod am33xx_timer4_hwmod;
+extern struct omap_hwmod am33xx_timer5_hwmod;
+extern struct omap_hwmod am33xx_timer6_hwmod;
+extern struct omap_hwmod am33xx_timer7_hwmod;
+extern struct omap_hwmod am33xx_tpcc_hwmod;
+extern struct omap_hwmod am33xx_tptc0_hwmod;
+extern struct omap_hwmod am33xx_tptc1_hwmod;
+extern struct omap_hwmod am33xx_tptc2_hwmod;
+extern struct omap_hwmod am33xx_uart1_hwmod;
+extern struct omap_hwmod am33xx_uart2_hwmod;
+extern struct omap_hwmod am33xx_uart3_hwmod;
+extern struct omap_hwmod am33xx_uart4_hwmod;
+extern struct omap_hwmod am33xx_uart5_hwmod;
+extern struct omap_hwmod am33xx_uart6_hwmod;
+extern struct omap_hwmod am33xx_wd_timer1_hwmod;
+
+extern struct omap_hwmod_class am33xx_l4_hwmod_class;
+extern struct omap_hwmod_class am33xx_wkup_m3_hwmod_class;
+extern struct omap_hwmod_class am33xx_control_hwmod_class;
+extern struct omap_hwmod_class am33xx_gpio_hwmod_class;
+extern struct omap_hwmod_class am33xx_timer_hwmod_class;
+extern struct omap_hwmod_class am33xx_epwmss_hwmod_class;
+extern struct omap_hwmod_class am33xx_ehrpwm_hwmod_class;
+extern struct omap_hwmod_class am33xx_spi_hwmod_class;
+
+extern struct omap_gpio_dev_attr gpio_dev_attr;
+extern struct omap2_mcspi_dev_attr mcspi_attrib;
+
+#endif
diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_interconnect_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_interconnect_data.c
new file mode 100644
index 000000000000..e2db378b849e
--- /dev/null
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_interconnect_data.c
@@ -0,0 +1,643 @@
+/*
+ *
+ * Copyright (C) 2013 Texas Instruments Incorporated
+ *
+ * Interconnects common for AM335x and AM43x
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/sizes.h>
+#include "omap_hwmod.h"
+#include "omap_hwmod_33xx_43xx_common_data.h"
+
+/* mpu -> l3 main */
+struct omap_hwmod_ocp_if am33xx_mpu__l3_main = {
+	.master		= &am33xx_mpu_hwmod,
+	.slave		= &am33xx_l3_main_hwmod,
+	.clk		= "dpll_mpu_m2_ck",
+	.user		= OCP_USER_MPU,
+};
+
+/* l3 main -> l3 s */
+struct omap_hwmod_ocp_if am33xx_l3_main__l3_s = {
+	.master		= &am33xx_l3_main_hwmod,
+	.slave		= &am33xx_l3_s_hwmod,
+	.clk		= "l3s_gclk",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l3 s -> l4 per/ls */
+struct omap_hwmod_ocp_if am33xx_l3_s__l4_ls = {
+	.master		= &am33xx_l3_s_hwmod,
+	.slave		= &am33xx_l4_ls_hwmod,
+	.clk		= "l3s_gclk",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l3 s -> l4 wkup */
+struct omap_hwmod_ocp_if am33xx_l3_s__l4_wkup = {
+	.master		= &am33xx_l3_s_hwmod,
+	.slave		= &am33xx_l4_wkup_hwmod,
+	.clk		= "l3s_gclk",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l3 main -> l3 instr */
+struct omap_hwmod_ocp_if am33xx_l3_main__l3_instr = {
+	.master		= &am33xx_l3_main_hwmod,
+	.slave		= &am33xx_l3_instr_hwmod,
+	.clk		= "l3s_gclk",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* mpu -> prcm */
+struct omap_hwmod_ocp_if am33xx_mpu__prcm = {
+	.master		= &am33xx_mpu_hwmod,
+	.slave		= &am33xx_prcm_hwmod,
+	.clk		= "dpll_mpu_m2_ck",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l3 s -> l3 main*/
+struct omap_hwmod_ocp_if am33xx_l3_s__l3_main = {
+	.master		= &am33xx_l3_s_hwmod,
+	.slave		= &am33xx_l3_main_hwmod,
+	.clk		= "l3s_gclk",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* pru-icss -> l3 main */
+struct omap_hwmod_ocp_if am33xx_pruss__l3_main = {
+	.master		= &am33xx_pruss_hwmod,
+	.slave		= &am33xx_l3_main_hwmod,
+	.clk		= "l3_gclk",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* gfx -> l3 main */
+struct omap_hwmod_ocp_if am33xx_gfx__l3_main = {
+	.master		= &am33xx_gfx_hwmod,
+	.slave		= &am33xx_l3_main_hwmod,
+	.clk		= "dpll_core_m4_ck",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l3 main -> gfx */
+struct omap_hwmod_ocp_if am33xx_l3_main__gfx = {
+	.master		= &am33xx_l3_main_hwmod,
+	.slave		= &am33xx_gfx_hwmod,
+	.clk		= "dpll_core_m4_ck",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l4 wkup -> rtc */
+struct omap_hwmod_ocp_if am33xx_l4_wkup__rtc = {
+	.master		= &am33xx_l4_wkup_hwmod,
+	.slave		= &am33xx_rtc_hwmod,
+	.clk		= "clkdiv32k_ick",
+	.user		= OCP_USER_MPU,
+};
+
+/* l4 per/ls -> DCAN0 */
+struct omap_hwmod_ocp_if am33xx_l4_per__dcan0 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_dcan0_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l4 per/ls -> DCAN1 */
+struct omap_hwmod_ocp_if am33xx_l4_per__dcan1 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_dcan1_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l4 per/ls -> GPIO2 */
+struct omap_hwmod_ocp_if am33xx_l4_per__gpio1 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_gpio1_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l4 per/ls -> gpio3 */
+struct omap_hwmod_ocp_if am33xx_l4_per__gpio2 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_gpio2_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l4 per/ls -> gpio4 */
+struct omap_hwmod_ocp_if am33xx_l4_per__gpio3 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_gpio3_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+struct omap_hwmod_ocp_if am33xx_cpgmac0__mdio = {
+	.master		= &am33xx_cpgmac0_hwmod,
+	.slave		= &am33xx_mdio_hwmod,
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_addr_space am33xx_elm_addr_space[] = {
+	{
+		.pa_start	= 0x48080000,
+		.pa_end		= 0x48080000 + SZ_8K - 1,
+		.flags		= ADDR_TYPE_RT
+	},
+	{ }
+};
+
+struct omap_hwmod_ocp_if am33xx_l4_ls__elm = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_elm_hwmod,
+	.clk		= "l4ls_gclk",
+	.addr		= am33xx_elm_addr_space,
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_addr_space am33xx_epwmss0_addr_space[] = {
+	{
+		.pa_start	= 0x48300000,
+		.pa_end		= 0x48300000 + SZ_16 - 1,
+		.flags		= ADDR_TYPE_RT
+	},
+	{ }
+};
+
+struct omap_hwmod_ocp_if am33xx_l4_ls__epwmss0 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_epwmss0_hwmod,
+	.clk		= "l4ls_gclk",
+	.addr		= am33xx_epwmss0_addr_space,
+	.user		= OCP_USER_MPU,
+};
+
+struct omap_hwmod_ocp_if am33xx_epwmss0__ecap0 = {
+	.master		= &am33xx_epwmss0_hwmod,
+	.slave		= &am33xx_ecap0_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+struct omap_hwmod_ocp_if am33xx_epwmss0__eqep0 = {
+	.master		= &am33xx_epwmss0_hwmod,
+	.slave		= &am33xx_eqep0_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+struct omap_hwmod_ocp_if am33xx_epwmss0__ehrpwm0 = {
+	.master		= &am33xx_epwmss0_hwmod,
+	.slave		= &am33xx_ehrpwm0_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+
+static struct omap_hwmod_addr_space am33xx_epwmss1_addr_space[] = {
+	{
+		.pa_start	= 0x48302000,
+		.pa_end		= 0x48302000 + SZ_16 - 1,
+		.flags		= ADDR_TYPE_RT
+	},
+	{ }
+};
+
+struct omap_hwmod_ocp_if am33xx_l4_ls__epwmss1 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_epwmss1_hwmod,
+	.clk		= "l4ls_gclk",
+	.addr		= am33xx_epwmss1_addr_space,
+	.user		= OCP_USER_MPU,
+};
+
+struct omap_hwmod_ocp_if am33xx_epwmss1__ecap1 = {
+	.master		= &am33xx_epwmss1_hwmod,
+	.slave		= &am33xx_ecap1_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+struct omap_hwmod_ocp_if am33xx_epwmss1__eqep1 = {
+	.master		= &am33xx_epwmss1_hwmod,
+	.slave		= &am33xx_eqep1_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+struct omap_hwmod_ocp_if am33xx_epwmss1__ehrpwm1 = {
+	.master		= &am33xx_epwmss1_hwmod,
+	.slave		= &am33xx_ehrpwm1_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_addr_space am33xx_epwmss2_addr_space[] = {
+	{
+		.pa_start	= 0x48304000,
+		.pa_end		= 0x48304000 + SZ_16 - 1,
+		.flags		= ADDR_TYPE_RT
+	},
+	{ }
+};
+
+struct omap_hwmod_ocp_if am33xx_l4_ls__epwmss2 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_epwmss2_hwmod,
+	.clk		= "l4ls_gclk",
+	.addr		= am33xx_epwmss2_addr_space,
+	.user		= OCP_USER_MPU,
+};
+
+struct omap_hwmod_ocp_if am33xx_epwmss2__ecap2 = {
+	.master		= &am33xx_epwmss2_hwmod,
+	.slave		= &am33xx_ecap2_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+struct omap_hwmod_ocp_if am33xx_epwmss2__eqep2 = {
+	.master		= &am33xx_epwmss2_hwmod,
+	.slave		= &am33xx_eqep2_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+struct omap_hwmod_ocp_if am33xx_epwmss2__ehrpwm2 = {
+	.master		= &am33xx_epwmss2_hwmod,
+	.slave		= &am33xx_ehrpwm2_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+/* l3s cfg -> gpmc */
+static struct omap_hwmod_addr_space am33xx_gpmc_addr_space[] = {
+	{
+		.pa_start	= 0x50000000,
+		.pa_end		= 0x50000000 + SZ_8K - 1,
+		.flags		= ADDR_TYPE_RT,
+	},
+	{ }
+};
+
+struct omap_hwmod_ocp_if am33xx_l3_s__gpmc = {
+	.master		= &am33xx_l3_s_hwmod,
+	.slave		= &am33xx_gpmc_hwmod,
+	.clk		= "l3s_gclk",
+	.addr		= am33xx_gpmc_addr_space,
+	.user		= OCP_USER_MPU,
+};
+
+/* i2c2 */
+struct omap_hwmod_ocp_if am33xx_l4_per__i2c2 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_i2c2_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+struct omap_hwmod_ocp_if am33xx_l4_per__i2c3 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_i2c3_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_addr_space am33xx_mailbox_addrs[] = {
+	{
+		.pa_start	= 0x480C8000,
+		.pa_end		= 0x480C8000 + (SZ_4K - 1),
+		.flags		= ADDR_TYPE_RT
+	},
+	{ }
+};
+
+/* l4 ls -> mailbox */
+struct omap_hwmod_ocp_if am33xx_l4_per__mailbox = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_mailbox_hwmod,
+	.clk		= "l4ls_gclk",
+	.addr		= am33xx_mailbox_addrs,
+	.user		= OCP_USER_MPU,
+};
+
+/* l4 ls -> spinlock */
+struct omap_hwmod_ocp_if am33xx_l4_ls__spinlock = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_spinlock_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+/* l4 ls -> mcasp0 */
+static struct omap_hwmod_addr_space am33xx_mcasp0_addr_space[] = {
+	{
+		.pa_start	= 0x48038000,
+		.pa_end		= 0x48038000 + SZ_8K - 1,
+		.flags		= ADDR_TYPE_RT
+	},
+	{ }
+};
+
+struct omap_hwmod_ocp_if am33xx_l4_ls__mcasp0 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_mcasp0_hwmod,
+	.clk		= "l4ls_gclk",
+	.addr		= am33xx_mcasp0_addr_space,
+	.user		= OCP_USER_MPU,
+};
+
+/* l4 ls -> mcasp1 */
+static struct omap_hwmod_addr_space am33xx_mcasp1_addr_space[] = {
+	{
+		.pa_start	= 0x4803C000,
+		.pa_end		= 0x4803C000 + SZ_8K - 1,
+		.flags		= ADDR_TYPE_RT
+	},
+	{ }
+};
+
+struct omap_hwmod_ocp_if am33xx_l4_ls__mcasp1 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_mcasp1_hwmod,
+	.clk		= "l4ls_gclk",
+	.addr		= am33xx_mcasp1_addr_space,
+	.user		= OCP_USER_MPU,
+};
+
+/* l4 ls -> mmc0 */
+static struct omap_hwmod_addr_space am33xx_mmc0_addr_space[] = {
+	{
+		.pa_start	= 0x48060100,
+		.pa_end		= 0x48060100 + SZ_4K - 1,
+		.flags		= ADDR_TYPE_RT,
+	},
+	{ }
+};
+
+struct omap_hwmod_ocp_if am33xx_l4_ls__mmc0 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_mmc0_hwmod,
+	.clk		= "l4ls_gclk",
+	.addr		= am33xx_mmc0_addr_space,
+	.user		= OCP_USER_MPU,
+};
+
+/* l4 ls -> mmc1 */
+static struct omap_hwmod_addr_space am33xx_mmc1_addr_space[] = {
+	{
+		.pa_start	= 0x481d8100,
+		.pa_end		= 0x481d8100 + SZ_4K - 1,
+		.flags		= ADDR_TYPE_RT,
+	},
+	{ }
+};
+
+struct omap_hwmod_ocp_if am33xx_l4_ls__mmc1 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_mmc1_hwmod,
+	.clk		= "l4ls_gclk",
+	.addr		= am33xx_mmc1_addr_space,
+	.user		= OCP_USER_MPU,
+};
+
+/* l3 s -> mmc2 */
+static struct omap_hwmod_addr_space am33xx_mmc2_addr_space[] = {
+	{
+		.pa_start	= 0x47810100,
+		.pa_end		= 0x47810100 + SZ_64K - 1,
+		.flags		= ADDR_TYPE_RT,
+	},
+	{ }
+};
+
+struct omap_hwmod_ocp_if am33xx_l3_s__mmc2 = {
+	.master		= &am33xx_l3_s_hwmod,
+	.slave		= &am33xx_mmc2_hwmod,
+	.clk		= "l3s_gclk",
+	.addr		= am33xx_mmc2_addr_space,
+	.user		= OCP_USER_MPU,
+};
+
+/* l4 ls -> mcspi0 */
+struct omap_hwmod_ocp_if am33xx_l4_ls__mcspi0 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_spi0_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+/* l4 ls -> mcspi1 */
+struct omap_hwmod_ocp_if am33xx_l4_ls__mcspi1 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_spi1_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+/* l4 per -> timer2 */
+struct omap_hwmod_ocp_if am33xx_l4_ls__timer2 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_timer2_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+/* l4 per -> timer3 */
+struct omap_hwmod_ocp_if am33xx_l4_ls__timer3 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_timer3_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+/* l4 per -> timer4 */
+struct omap_hwmod_ocp_if am33xx_l4_ls__timer4 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_timer4_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+/* l4 per -> timer5 */
+struct omap_hwmod_ocp_if am33xx_l4_ls__timer5 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_timer5_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+/* l4 per -> timer6 */
+struct omap_hwmod_ocp_if am33xx_l4_ls__timer6 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_timer6_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+/* l4 per -> timer7 */
+struct omap_hwmod_ocp_if am33xx_l4_ls__timer7 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_timer7_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+/* l3 main -> tpcc */
+struct omap_hwmod_ocp_if am33xx_l3_main__tpcc = {
+	.master		= &am33xx_l3_main_hwmod,
+	.slave		= &am33xx_tpcc_hwmod,
+	.clk		= "l3_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+/* l3 main -> tpcc0 */
+static struct omap_hwmod_addr_space am33xx_tptc0_addr_space[] = {
+	{
+		.pa_start	= 0x49800000,
+		.pa_end		= 0x49800000 + SZ_8K - 1,
+		.flags		= ADDR_TYPE_RT,
+	},
+	{ }
+};
+
+struct omap_hwmod_ocp_if am33xx_l3_main__tptc0 = {
+	.master		= &am33xx_l3_main_hwmod,
+	.slave		= &am33xx_tptc0_hwmod,
+	.clk		= "l3_gclk",
+	.addr		= am33xx_tptc0_addr_space,
+	.user		= OCP_USER_MPU,
+};
+
+/* l3 main -> tpcc1 */
+static struct omap_hwmod_addr_space am33xx_tptc1_addr_space[] = {
+	{
+		.pa_start	= 0x49900000,
+		.pa_end		= 0x49900000 + SZ_8K - 1,
+		.flags		= ADDR_TYPE_RT,
+	},
+	{ }
+};
+
+struct omap_hwmod_ocp_if am33xx_l3_main__tptc1 = {
+	.master		= &am33xx_l3_main_hwmod,
+	.slave		= &am33xx_tptc1_hwmod,
+	.clk		= "l3_gclk",
+	.addr		= am33xx_tptc1_addr_space,
+	.user		= OCP_USER_MPU,
+};
+
+/* l3 main -> tpcc2 */
+static struct omap_hwmod_addr_space am33xx_tptc2_addr_space[] = {
+	{
+		.pa_start	= 0x49a00000,
+		.pa_end		= 0x49a00000 + SZ_8K - 1,
+		.flags		= ADDR_TYPE_RT,
+	},
+	{ }
+};
+
+struct omap_hwmod_ocp_if am33xx_l3_main__tptc2 = {
+	.master		= &am33xx_l3_main_hwmod,
+	.slave		= &am33xx_tptc2_hwmod,
+	.clk		= "l3_gclk",
+	.addr		= am33xx_tptc2_addr_space,
+	.user		= OCP_USER_MPU,
+};
+
+/* l4 ls -> uart2 */
+struct omap_hwmod_ocp_if am33xx_l4_ls__uart2 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_uart2_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+/* l4 ls -> uart3 */
+struct omap_hwmod_ocp_if am33xx_l4_ls__uart3 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_uart3_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+/* l4 ls -> uart4 */
+struct omap_hwmod_ocp_if am33xx_l4_ls__uart4 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_uart4_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+/* l4 ls -> uart5 */
+struct omap_hwmod_ocp_if am33xx_l4_ls__uart5 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_uart5_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+/* l4 ls -> uart6 */
+struct omap_hwmod_ocp_if am33xx_l4_ls__uart6 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am33xx_uart6_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+/* l3 main -> ocmc */
+struct omap_hwmod_ocp_if am33xx_l3_main__ocmc = {
+	.master		= &am33xx_l3_main_hwmod,
+	.slave		= &am33xx_ocmcram_hwmod,
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l3 main -> sha0 HIB2 */
+static struct omap_hwmod_addr_space am33xx_sha0_addrs[] = {
+	{
+		.pa_start	= 0x53100000,
+		.pa_end		= 0x53100000 + SZ_512 - 1,
+		.flags		= ADDR_TYPE_RT
+	},
+	{ }
+};
+
+struct omap_hwmod_ocp_if am33xx_l3_main__sha0 = {
+	.master		= &am33xx_l3_main_hwmod,
+	.slave		= &am33xx_sha0_hwmod,
+	.clk		= "sha0_fck",
+	.addr		= am33xx_sha0_addrs,
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+/* l3 main -> AES0 HIB2 */
+static struct omap_hwmod_addr_space am33xx_aes0_addrs[] = {
+	{
+		.pa_start	= 0x53500000,
+		.pa_end		= 0x53500000 + SZ_1M - 1,
+		.flags		= ADDR_TYPE_RT
+	},
+	{ }
+};
+
+struct omap_hwmod_ocp_if am33xx_l3_main__aes0 = {
+	.master		= &am33xx_l3_main_hwmod,
+	.slave		= &am33xx_aes0_hwmod,
+	.clk		= "aes0_fck",
+	.addr		= am33xx_aes0_addrs,
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
new file mode 100644
index 000000000000..669b7bd1b0bc
--- /dev/null
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
@@ -0,0 +1,1375 @@
+/*
+ *
+ * Copyright (C) 2013 Texas Instruments Incorporated
+ *
+ * Hwmod common for AM335x and AM43x
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/platform_data/gpio-omap.h>
+#include <linux/platform_data/spi-omap2-mcspi.h>
+#include "omap_hwmod.h"
+#include "i2c.h"
+#include "mmc.h"
+#include "wd_timer.h"
+#include "cm33xx.h"
+#include "prm33xx.h"
+#include "omap_hwmod_33xx_43xx_common_data.h"
+
+/*
+ * 'l3' class
+ * instance(s): l3_main, l3_s, l3_instr
+ */
+static struct omap_hwmod_class am33xx_l3_hwmod_class = {
+	.name		= "l3",
+};
+
+struct omap_hwmod am33xx_l3_main_hwmod = {
+	.name		= "l3_main",
+	.class		= &am33xx_l3_hwmod_class,
+	.clkdm_name	= "l3_clkdm",
+	.flags		= HWMOD_INIT_NO_IDLE,
+	.main_clk	= "l3_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_L3_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* l3_s */
+struct omap_hwmod am33xx_l3_s_hwmod = {
+	.name		= "l3_s",
+	.class		= &am33xx_l3_hwmod_class,
+	.clkdm_name	= "l3s_clkdm",
+};
+
+/* l3_instr */
+struct omap_hwmod am33xx_l3_instr_hwmod = {
+	.name		= "l3_instr",
+	.class		= &am33xx_l3_hwmod_class,
+	.clkdm_name	= "l3_clkdm",
+	.flags		= HWMOD_INIT_NO_IDLE,
+	.main_clk	= "l3_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_L3_INSTR_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/*
+ * 'l4' class
+ * instance(s): l4_ls, l4_hs, l4_wkup, l4_fw
+ */
+struct omap_hwmod_class am33xx_l4_hwmod_class = {
+	.name		= "l4",
+};
+
+/* l4_ls */
+struct omap_hwmod am33xx_l4_ls_hwmod = {
+	.name		= "l4_ls",
+	.class		= &am33xx_l4_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.flags		= HWMOD_INIT_NO_IDLE,
+	.main_clk	= "l4ls_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_L4LS_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* l4_wkup */
+struct omap_hwmod am33xx_l4_wkup_hwmod = {
+	.name		= "l4_wkup",
+	.class		= &am33xx_l4_hwmod_class,
+	.clkdm_name	= "l4_wkup_clkdm",
+	.flags		= HWMOD_INIT_NO_IDLE,
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_WKUP_L4WKUP_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/*
+ * 'mpu' class
+ */
+static struct omap_hwmod_class am33xx_mpu_hwmod_class = {
+	.name	= "mpu",
+};
+
+struct omap_hwmod am33xx_mpu_hwmod = {
+	.name		= "mpu",
+	.class		= &am33xx_mpu_hwmod_class,
+	.clkdm_name	= "mpu_clkdm",
+	.flags		= HWMOD_INIT_NO_IDLE,
+	.main_clk	= "dpll_mpu_m2_ck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_MPU_MPU_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/*
+ * 'wakeup m3' class
+ * Wakeup controller sub-system under wakeup domain
+ */
+struct omap_hwmod_class am33xx_wkup_m3_hwmod_class = {
+	.name		= "wkup_m3",
+};
+
+/*
+ * 'pru-icss' class
+ * Programmable Real-Time Unit and Industrial Communication Subsystem
+ */
+static struct omap_hwmod_class am33xx_pruss_hwmod_class = {
+	.name	= "pruss",
+};
+
+static struct omap_hwmod_rst_info am33xx_pruss_resets[] = {
+	{ .name = "pruss", .rst_shift = 1 },
+};
+
+/* pru-icss */
+/* Pseudo hwmod for reset control purpose only */
+struct omap_hwmod am33xx_pruss_hwmod = {
+	.name		= "pruss",
+	.class		= &am33xx_pruss_hwmod_class,
+	.clkdm_name	= "pruss_ocp_clkdm",
+	.main_clk	= "pruss_ocp_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_PRUSS_CLKCTRL_OFFSET,
+			.rstctrl_offs	= AM33XX_RM_PER_RSTCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+	.rst_lines	= am33xx_pruss_resets,
+	.rst_lines_cnt	= ARRAY_SIZE(am33xx_pruss_resets),
+};
+
+/* gfx */
+/* Pseudo hwmod for reset control purpose only */
+static struct omap_hwmod_class am33xx_gfx_hwmod_class = {
+	.name	= "gfx",
+};
+
+static struct omap_hwmod_rst_info am33xx_gfx_resets[] = {
+	{ .name = "gfx", .rst_shift = 0, .st_shift = 0},
+};
+
+struct omap_hwmod am33xx_gfx_hwmod = {
+	.name		= "gfx",
+	.class		= &am33xx_gfx_hwmod_class,
+	.clkdm_name	= "gfx_l3_clkdm",
+	.main_clk	= "gfx_fck_div_ck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_GFX_GFX_CLKCTRL_OFFSET,
+			.rstctrl_offs	= AM33XX_RM_GFX_RSTCTRL_OFFSET,
+			.rstst_offs	= AM33XX_RM_GFX_RSTST_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+	.rst_lines	= am33xx_gfx_resets,
+	.rst_lines_cnt	= ARRAY_SIZE(am33xx_gfx_resets),
+};
+
+/*
+ * 'prcm' class
+ * power and reset manager (whole prcm infrastructure)
+ */
+static struct omap_hwmod_class am33xx_prcm_hwmod_class = {
+	.name	= "prcm",
+};
+
+/* prcm */
+struct omap_hwmod am33xx_prcm_hwmod = {
+	.name		= "prcm",
+	.class		= &am33xx_prcm_hwmod_class,
+	.clkdm_name	= "l4_wkup_clkdm",
+};
+
+/*
+ * 'aes0' class
+ */
+static struct omap_hwmod_class_sysconfig am33xx_aes0_sysc = {
+	.rev_offs	= 0x80,
+	.sysc_offs	= 0x84,
+	.syss_offs	= 0x88,
+	.sysc_flags	= SYSS_HAS_RESET_STATUS,
+};
+
+static struct omap_hwmod_class am33xx_aes0_hwmod_class = {
+	.name		= "aes0",
+	.sysc		= &am33xx_aes0_sysc,
+};
+
+struct omap_hwmod am33xx_aes0_hwmod = {
+	.name		= "aes",
+	.class		= &am33xx_aes0_hwmod_class,
+	.clkdm_name	= "l3_clkdm",
+	.main_clk	= "aes0_fck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_AES0_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* sha0 HIB2 (the 'P' (public) device) */
+static struct omap_hwmod_class_sysconfig am33xx_sha0_sysc = {
+	.rev_offs	= 0x100,
+	.sysc_offs	= 0x110,
+	.syss_offs	= 0x114,
+	.sysc_flags	= SYSS_HAS_RESET_STATUS,
+};
+
+static struct omap_hwmod_class am33xx_sha0_hwmod_class = {
+	.name		= "sha0",
+	.sysc		= &am33xx_sha0_sysc,
+};
+
+struct omap_hwmod am33xx_sha0_hwmod = {
+	.name		= "sham",
+	.class		= &am33xx_sha0_hwmod_class,
+	.clkdm_name	= "l3_clkdm",
+	.main_clk	= "l3_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_SHA0_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* ocmcram */
+static struct omap_hwmod_class am33xx_ocmcram_hwmod_class = {
+	.name = "ocmcram",
+};
+
+struct omap_hwmod am33xx_ocmcram_hwmod = {
+	.name		= "ocmcram",
+	.class		= &am33xx_ocmcram_hwmod_class,
+	.clkdm_name	= "l3_clkdm",
+	.flags		= HWMOD_INIT_NO_IDLE,
+	.main_clk	= "l3_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_OCMCRAM_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* 'smartreflex' class */
+static struct omap_hwmod_class am33xx_smartreflex_hwmod_class = {
+	.name		= "smartreflex",
+};
+
+/* smartreflex0 */
+struct omap_hwmod am33xx_smartreflex0_hwmod = {
+	.name		= "smartreflex0",
+	.class		= &am33xx_smartreflex_hwmod_class,
+	.clkdm_name	= "l4_wkup_clkdm",
+	.main_clk	= "smartreflex0_fck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_WKUP_SMARTREFLEX0_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* smartreflex1 */
+struct omap_hwmod am33xx_smartreflex1_hwmod = {
+	.name		= "smartreflex1",
+	.class		= &am33xx_smartreflex_hwmod_class,
+	.clkdm_name	= "l4_wkup_clkdm",
+	.main_clk	= "smartreflex1_fck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_WKUP_SMARTREFLEX1_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/*
+ * 'control' module class
+ */
+struct omap_hwmod_class am33xx_control_hwmod_class = {
+	.name		= "control",
+};
+
+/*
+ * 'cpgmac' class
+ * cpsw/cpgmac sub system
+ */
+static struct omap_hwmod_class_sysconfig am33xx_cpgmac_sysc = {
+	.rev_offs	= 0x0,
+	.sysc_offs	= 0x8,
+	.syss_offs	= 0x4,
+	.sysc_flags	= (SYSC_HAS_SIDLEMODE | SYSC_HAS_MIDLEMODE |
+			   SYSS_HAS_RESET_STATUS),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | MSTANDBY_FORCE |
+			   MSTANDBY_NO),
+	.sysc_fields	= &omap_hwmod_sysc_type3,
+};
+
+static struct omap_hwmod_class am33xx_cpgmac0_hwmod_class = {
+	.name		= "cpgmac0",
+	.sysc		= &am33xx_cpgmac_sysc,
+};
+
+struct omap_hwmod am33xx_cpgmac0_hwmod = {
+	.name		= "cpgmac0",
+	.class		= &am33xx_cpgmac0_hwmod_class,
+	.clkdm_name	= "cpsw_125mhz_clkdm",
+	.flags		= (HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY),
+	.main_clk	= "cpsw_125mhz_gclk",
+	.mpu_rt_idx	= 1,
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_CPGMAC0_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/*
+ * mdio class
+ */
+static struct omap_hwmod_class am33xx_mdio_hwmod_class = {
+	.name		= "davinci_mdio",
+};
+
+struct omap_hwmod am33xx_mdio_hwmod = {
+	.name		= "davinci_mdio",
+	.class		= &am33xx_mdio_hwmod_class,
+	.clkdm_name	= "cpsw_125mhz_clkdm",
+	.main_clk	= "cpsw_125mhz_gclk",
+};
+
+/*
+ * dcan class
+ */
+static struct omap_hwmod_class am33xx_dcan_hwmod_class = {
+	.name = "d_can",
+};
+
+/* dcan0 */
+struct omap_hwmod am33xx_dcan0_hwmod = {
+	.name		= "d_can0",
+	.class		= &am33xx_dcan_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "dcan0_fck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_DCAN0_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* dcan1 */
+struct omap_hwmod am33xx_dcan1_hwmod = {
+	.name		= "d_can1",
+	.class		= &am33xx_dcan_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "dcan1_fck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_DCAN1_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* elm */
+static struct omap_hwmod_class_sysconfig am33xx_elm_sysc = {
+	.rev_offs	= 0x0000,
+	.sysc_offs	= 0x0010,
+	.syss_offs	= 0x0014,
+	.sysc_flags	= (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE |
+			SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE |
+			SYSS_HAS_RESET_STATUS),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class am33xx_elm_hwmod_class = {
+	.name		= "elm",
+	.sysc		= &am33xx_elm_sysc,
+};
+
+struct omap_hwmod am33xx_elm_hwmod = {
+	.name		= "elm",
+	.class		= &am33xx_elm_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_ELM_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* pwmss  */
+static struct omap_hwmod_class_sysconfig am33xx_epwmss_sysc = {
+	.rev_offs	= 0x0,
+	.sysc_offs	= 0x4,
+	.sysc_flags	= (SYSC_HAS_SIDLEMODE | SYSC_HAS_MIDLEMODE),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
+			SIDLE_SMART_WKUP | MSTANDBY_FORCE | MSTANDBY_NO |
+			MSTANDBY_SMART | MSTANDBY_SMART_WKUP),
+	.sysc_fields	= &omap_hwmod_sysc_type2,
+};
+
+struct omap_hwmod_class am33xx_epwmss_hwmod_class = {
+	.name		= "epwmss",
+	.sysc		= &am33xx_epwmss_sysc,
+};
+
+static struct omap_hwmod_class am33xx_ecap_hwmod_class = {
+	.name		= "ecap",
+};
+
+static struct omap_hwmod_class am33xx_eqep_hwmod_class = {
+	.name		= "eqep",
+};
+
+struct omap_hwmod_class am33xx_ehrpwm_hwmod_class = {
+	.name		= "ehrpwm",
+};
+
+/* epwmss0 */
+struct omap_hwmod am33xx_epwmss0_hwmod = {
+	.name		= "epwmss0",
+	.class		= &am33xx_epwmss_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_EPWMSS0_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* ecap0 */
+struct omap_hwmod am33xx_ecap0_hwmod = {
+	.name		= "ecap0",
+	.class		= &am33xx_ecap_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+};
+
+/* eqep0 */
+struct omap_hwmod am33xx_eqep0_hwmod = {
+	.name		= "eqep0",
+	.class		= &am33xx_eqep_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+};
+
+/* ehrpwm0 */
+struct omap_hwmod am33xx_ehrpwm0_hwmod = {
+	.name		= "ehrpwm0",
+	.class		= &am33xx_ehrpwm_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+};
+
+/* epwmss1 */
+struct omap_hwmod am33xx_epwmss1_hwmod = {
+	.name		= "epwmss1",
+	.class		= &am33xx_epwmss_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_EPWMSS1_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* ecap1 */
+struct omap_hwmod am33xx_ecap1_hwmod = {
+	.name		= "ecap1",
+	.class		= &am33xx_ecap_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+};
+
+/* eqep1 */
+struct omap_hwmod am33xx_eqep1_hwmod = {
+	.name		= "eqep1",
+	.class		= &am33xx_eqep_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+};
+
+/* ehrpwm1 */
+struct omap_hwmod am33xx_ehrpwm1_hwmod = {
+	.name		= "ehrpwm1",
+	.class		= &am33xx_ehrpwm_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+};
+
+/* epwmss2 */
+struct omap_hwmod am33xx_epwmss2_hwmod = {
+	.name		= "epwmss2",
+	.class		= &am33xx_epwmss_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_EPWMSS2_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* ecap2 */
+struct omap_hwmod am33xx_ecap2_hwmod = {
+	.name		= "ecap2",
+	.class		= &am33xx_ecap_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+};
+
+/* eqep2 */
+struct omap_hwmod am33xx_eqep2_hwmod = {
+	.name		= "eqep2",
+	.class		= &am33xx_eqep_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+};
+
+/* ehrpwm2 */
+struct omap_hwmod am33xx_ehrpwm2_hwmod = {
+	.name		= "ehrpwm2",
+	.class		= &am33xx_ehrpwm_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+};
+
+/*
+ * 'gpio' class: for gpio 0,1,2,3
+ */
+static struct omap_hwmod_class_sysconfig am33xx_gpio_sysc = {
+	.rev_offs	= 0x0000,
+	.sysc_offs	= 0x0010,
+	.syss_offs	= 0x0114,
+	.sysc_flags	= (SYSC_HAS_AUTOIDLE | SYSC_HAS_ENAWAKEUP |
+			  SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET |
+			  SYSS_HAS_RESET_STATUS),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
+			  SIDLE_SMART_WKUP),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+struct omap_hwmod_class am33xx_gpio_hwmod_class = {
+	.name		= "gpio",
+	.sysc		= &am33xx_gpio_sysc,
+	.rev		= 2,
+};
+
+struct omap_gpio_dev_attr gpio_dev_attr = {
+	.bank_width	= 32,
+	.dbck_flag	= true,
+};
+
+/* gpio1 */
+static struct omap_hwmod_opt_clk gpio1_opt_clks[] = {
+	{ .role = "dbclk", .clk = "gpio1_dbclk" },
+};
+
+struct omap_hwmod am33xx_gpio1_hwmod = {
+	.name		= "gpio2",
+	.class		= &am33xx_gpio_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
+	.main_clk	= "l4ls_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_GPIO1_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+	.opt_clks	= gpio1_opt_clks,
+	.opt_clks_cnt	= ARRAY_SIZE(gpio1_opt_clks),
+	.dev_attr	= &gpio_dev_attr,
+};
+
+/* gpio2 */
+static struct omap_hwmod_opt_clk gpio2_opt_clks[] = {
+	{ .role = "dbclk", .clk = "gpio2_dbclk" },
+};
+
+struct omap_hwmod am33xx_gpio2_hwmod = {
+	.name		= "gpio3",
+	.class		= &am33xx_gpio_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
+	.main_clk	= "l4ls_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_GPIO2_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+	.opt_clks	= gpio2_opt_clks,
+	.opt_clks_cnt	= ARRAY_SIZE(gpio2_opt_clks),
+	.dev_attr	= &gpio_dev_attr,
+};
+
+/* gpio3 */
+static struct omap_hwmod_opt_clk gpio3_opt_clks[] = {
+	{ .role = "dbclk", .clk = "gpio3_dbclk" },
+};
+
+struct omap_hwmod am33xx_gpio3_hwmod = {
+	.name		= "gpio4",
+	.class		= &am33xx_gpio_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
+	.main_clk	= "l4ls_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_GPIO3_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+	.opt_clks	= gpio3_opt_clks,
+	.opt_clks_cnt	= ARRAY_SIZE(gpio3_opt_clks),
+	.dev_attr	= &gpio_dev_attr,
+};
+
+/* gpmc */
+static struct omap_hwmod_class_sysconfig gpmc_sysc = {
+	.rev_offs	= 0x0,
+	.sysc_offs	= 0x10,
+	.syss_offs	= 0x14,
+	.sysc_flags	= (SYSC_HAS_AUTOIDLE | SYSC_HAS_SIDLEMODE |
+			SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class am33xx_gpmc_hwmod_class = {
+	.name		= "gpmc",
+	.sysc		= &gpmc_sysc,
+};
+
+struct omap_hwmod am33xx_gpmc_hwmod = {
+	.name		= "gpmc",
+	.class		= &am33xx_gpmc_hwmod_class,
+	.clkdm_name	= "l3s_clkdm",
+	.flags		= (HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET),
+	.main_clk	= "l3s_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_GPMC_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* 'i2c' class */
+static struct omap_hwmod_class_sysconfig am33xx_i2c_sysc = {
+	.sysc_offs	= 0x0010,
+	.syss_offs	= 0x0090,
+	.sysc_flags	= (SYSC_HAS_AUTOIDLE | SYSC_HAS_CLOCKACTIVITY |
+			  SYSC_HAS_ENAWAKEUP | SYSC_HAS_SIDLEMODE |
+			  SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
+			  SIDLE_SMART_WKUP),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class i2c_class = {
+	.name		= "i2c",
+	.sysc		= &am33xx_i2c_sysc,
+	.rev		= OMAP_I2C_IP_VERSION_2,
+	.reset		= &omap_i2c_reset,
+};
+
+static struct omap_i2c_dev_attr i2c_dev_attr = {
+	.flags = OMAP_I2C_FLAG_BUS_SHIFT_NONE,
+};
+
+/* i2c1 */
+struct omap_hwmod am33xx_i2c1_hwmod = {
+	.name		= "i2c1",
+	.class		= &i2c_class,
+	.clkdm_name	= "l4_wkup_clkdm",
+	.flags		= HWMOD_16BIT_REG | HWMOD_SET_DEFAULT_CLOCKACT,
+	.main_clk	= "dpll_per_m2_div4_wkupdm_ck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_WKUP_I2C0_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+	.dev_attr	= &i2c_dev_attr,
+};
+
+/* i2c1 */
+struct omap_hwmod am33xx_i2c2_hwmod = {
+	.name		= "i2c2",
+	.class		= &i2c_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.flags		= HWMOD_16BIT_REG | HWMOD_SET_DEFAULT_CLOCKACT,
+	.main_clk	= "dpll_per_m2_div4_ck",
+	.prcm		= {
+		.omap4 = {
+			.clkctrl_offs	= AM33XX_CM_PER_I2C1_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+	.dev_attr	= &i2c_dev_attr,
+};
+
+/* i2c3 */
+struct omap_hwmod am33xx_i2c3_hwmod = {
+	.name		= "i2c3",
+	.class		= &i2c_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.flags		= HWMOD_16BIT_REG | HWMOD_SET_DEFAULT_CLOCKACT,
+	.main_clk	= "dpll_per_m2_div4_ck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_I2C2_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+	.dev_attr	= &i2c_dev_attr,
+};
+
+/*
+ * 'mailbox' class
+ * mailbox module allowing communication between the on-chip processors using a
+ * queued mailbox-interrupt mechanism.
+ */
+static struct omap_hwmod_class_sysconfig am33xx_mailbox_sysc = {
+	.rev_offs	= 0x0000,
+	.sysc_offs	= 0x0010,
+	.sysc_flags	= (SYSC_HAS_RESET_STATUS | SYSC_HAS_SIDLEMODE |
+			  SYSC_HAS_SOFTRESET),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+	.sysc_fields	= &omap_hwmod_sysc_type2,
+};
+
+static struct omap_hwmod_class am33xx_mailbox_hwmod_class = {
+	.name	= "mailbox",
+	.sysc	= &am33xx_mailbox_sysc,
+};
+
+struct omap_hwmod am33xx_mailbox_hwmod = {
+	.name		= "mailbox",
+	.class		= &am33xx_mailbox_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+	.prcm = {
+		.omap4 = {
+			.clkctrl_offs	= AM33XX_CM_PER_MAILBOX0_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/*
+ * 'mcasp' class
+ */
+static struct omap_hwmod_class_sysconfig am33xx_mcasp_sysc = {
+	.rev_offs	= 0x0,
+	.sysc_offs	= 0x4,
+	.sysc_flags	= SYSC_HAS_SIDLEMODE,
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+	.sysc_fields	= &omap_hwmod_sysc_type3,
+};
+
+static struct omap_hwmod_class am33xx_mcasp_hwmod_class = {
+	.name		= "mcasp",
+	.sysc		= &am33xx_mcasp_sysc,
+};
+
+/* mcasp0 */
+struct omap_hwmod am33xx_mcasp0_hwmod = {
+	.name		= "mcasp0",
+	.class		= &am33xx_mcasp_hwmod_class,
+	.clkdm_name	= "l3s_clkdm",
+	.main_clk	= "mcasp0_fck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_MCASP0_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* mcasp1 */
+struct omap_hwmod am33xx_mcasp1_hwmod = {
+	.name		= "mcasp1",
+	.class		= &am33xx_mcasp_hwmod_class,
+	.clkdm_name	= "l3s_clkdm",
+	.main_clk	= "mcasp1_fck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_MCASP1_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* 'mmc' class */
+static struct omap_hwmod_class_sysconfig am33xx_mmc_sysc = {
+	.rev_offs	= 0x1fc,
+	.sysc_offs	= 0x10,
+	.syss_offs	= 0x14,
+	.sysc_flags	= (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE |
+			  SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET |
+			  SYSC_HAS_AUTOIDLE | SYSS_HAS_RESET_STATUS),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class am33xx_mmc_hwmod_class = {
+	.name		= "mmc",
+	.sysc		= &am33xx_mmc_sysc,
+};
+
+/* mmc0 */
+static struct omap_mmc_dev_attr am33xx_mmc0_dev_attr = {
+	.flags		= OMAP_HSMMC_SUPPORTS_DUAL_VOLT,
+};
+
+struct omap_hwmod am33xx_mmc0_hwmod = {
+	.name		= "mmc1",
+	.class		= &am33xx_mmc_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "mmc_clk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_MMC0_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+	.dev_attr	= &am33xx_mmc0_dev_attr,
+};
+
+/* mmc1 */
+static struct omap_mmc_dev_attr am33xx_mmc1_dev_attr = {
+	.flags		= OMAP_HSMMC_SUPPORTS_DUAL_VOLT,
+};
+
+struct omap_hwmod am33xx_mmc1_hwmod = {
+	.name		= "mmc2",
+	.class		= &am33xx_mmc_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "mmc_clk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_MMC1_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+	.dev_attr	= &am33xx_mmc1_dev_attr,
+};
+
+/* mmc2 */
+static struct omap_mmc_dev_attr am33xx_mmc2_dev_attr = {
+	.flags		= OMAP_HSMMC_SUPPORTS_DUAL_VOLT,
+};
+struct omap_hwmod am33xx_mmc2_hwmod = {
+	.name		= "mmc3",
+	.class		= &am33xx_mmc_hwmod_class,
+	.clkdm_name	= "l3s_clkdm",
+	.main_clk	= "mmc_clk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_MMC2_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+	.dev_attr	= &am33xx_mmc2_dev_attr,
+};
+
+/*
+ * 'rtc' class
+ * rtc subsystem
+ */
+static struct omap_hwmod_class_sysconfig am33xx_rtc_sysc = {
+	.rev_offs	= 0x0074,
+	.sysc_offs	= 0x0078,
+	.sysc_flags	= SYSC_HAS_SIDLEMODE,
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO |
+			  SIDLE_SMART | SIDLE_SMART_WKUP),
+	.sysc_fields	= &omap_hwmod_sysc_type3,
+};
+
+static struct omap_hwmod_class am33xx_rtc_hwmod_class = {
+	.name		= "rtc",
+	.sysc		= &am33xx_rtc_sysc,
+};
+
+struct omap_hwmod am33xx_rtc_hwmod = {
+	.name		= "rtc",
+	.class		= &am33xx_rtc_hwmod_class,
+	.clkdm_name	= "l4_rtc_clkdm",
+	.main_clk	= "clk_32768_ck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_RTC_RTC_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* 'spi' class */
+static struct omap_hwmod_class_sysconfig am33xx_mcspi_sysc = {
+	.rev_offs	= 0x0000,
+	.sysc_offs	= 0x0110,
+	.syss_offs	= 0x0114,
+	.sysc_flags	= (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE |
+			  SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE |
+			  SYSS_HAS_RESET_STATUS),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+struct omap_hwmod_class am33xx_spi_hwmod_class = {
+	.name		= "mcspi",
+	.sysc		= &am33xx_mcspi_sysc,
+	.rev		= OMAP4_MCSPI_REV,
+};
+
+/* spi0 */
+struct omap2_mcspi_dev_attr mcspi_attrib = {
+	.num_chipselect	= 2,
+};
+struct omap_hwmod am33xx_spi0_hwmod = {
+	.name		= "spi0",
+	.class		= &am33xx_spi_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "dpll_per_m2_div4_ck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_SPI0_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+	.dev_attr	= &mcspi_attrib,
+};
+
+/* spi1 */
+struct omap_hwmod am33xx_spi1_hwmod = {
+	.name		= "spi1",
+	.class		= &am33xx_spi_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "dpll_per_m2_div4_ck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_SPI1_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+	.dev_attr	= &mcspi_attrib,
+};
+
+/*
+ * 'spinlock' class
+ * spinlock provides hardware assistance for synchronizing the
+ * processes running on multiple processors
+ */
+
+static struct omap_hwmod_class_sysconfig am33xx_spinlock_sysc = {
+	.rev_offs	= 0x0000,
+	.sysc_offs	= 0x0010,
+	.syss_offs	= 0x0014,
+	.sysc_flags	= (SYSC_HAS_AUTOIDLE | SYSC_HAS_CLOCKACTIVITY |
+			   SYSC_HAS_ENAWAKEUP | SYSC_HAS_SIDLEMODE |
+			   SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class am33xx_spinlock_hwmod_class = {
+	.name		= "spinlock",
+	.sysc		= &am33xx_spinlock_sysc,
+};
+
+struct omap_hwmod am33xx_spinlock_hwmod = {
+	.name		= "spinlock",
+	.class		= &am33xx_spinlock_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_SPINLOCK_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* 'timer 2-7' class */
+static struct omap_hwmod_class_sysconfig am33xx_timer_sysc = {
+	.rev_offs	= 0x0000,
+	.sysc_offs	= 0x0010,
+	.syss_offs	= 0x0014,
+	.sysc_flags	= (SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
+			  SIDLE_SMART_WKUP),
+	.sysc_fields	= &omap_hwmod_sysc_type2,
+};
+
+struct omap_hwmod_class am33xx_timer_hwmod_class = {
+	.name		= "timer",
+	.sysc		= &am33xx_timer_sysc,
+};
+
+/* timer1 1ms */
+static struct omap_hwmod_class_sysconfig am33xx_timer1ms_sysc = {
+	.rev_offs	= 0x0000,
+	.sysc_offs	= 0x0010,
+	.syss_offs	= 0x0014,
+	.sysc_flags	= (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE |
+			SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE |
+			SYSS_HAS_RESET_STATUS),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class am33xx_timer1ms_hwmod_class = {
+	.name		= "timer",
+	.sysc		= &am33xx_timer1ms_sysc,
+};
+
+struct omap_hwmod am33xx_timer1_hwmod = {
+	.name		= "timer1",
+	.class		= &am33xx_timer1ms_hwmod_class,
+	.clkdm_name	= "l4_wkup_clkdm",
+	.main_clk	= "timer1_fck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_WKUP_TIMER1_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+struct omap_hwmod am33xx_timer2_hwmod = {
+	.name		= "timer2",
+	.class		= &am33xx_timer_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "timer2_fck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_TIMER2_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+struct omap_hwmod am33xx_timer3_hwmod = {
+	.name		= "timer3",
+	.class		= &am33xx_timer_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "timer3_fck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_TIMER3_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+struct omap_hwmod am33xx_timer4_hwmod = {
+	.name		= "timer4",
+	.class		= &am33xx_timer_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "timer4_fck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_TIMER4_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+struct omap_hwmod am33xx_timer5_hwmod = {
+	.name		= "timer5",
+	.class		= &am33xx_timer_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "timer5_fck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_TIMER5_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+struct omap_hwmod am33xx_timer6_hwmod = {
+	.name		= "timer6",
+	.class		= &am33xx_timer_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "timer6_fck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_TIMER6_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+struct omap_hwmod am33xx_timer7_hwmod = {
+	.name		= "timer7",
+	.class		= &am33xx_timer_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "timer7_fck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_TIMER7_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* tpcc */
+static struct omap_hwmod_class am33xx_tpcc_hwmod_class = {
+	.name		= "tpcc",
+};
+
+struct omap_hwmod am33xx_tpcc_hwmod = {
+	.name		= "tpcc",
+	.class		= &am33xx_tpcc_hwmod_class,
+	.clkdm_name	= "l3_clkdm",
+	.main_clk	= "l3_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_TPCC_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+static struct omap_hwmod_class_sysconfig am33xx_tptc_sysc = {
+	.rev_offs	= 0x0,
+	.sysc_offs	= 0x10,
+	.sysc_flags	= (SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET |
+			  SYSC_HAS_MIDLEMODE),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_SMART | MSTANDBY_FORCE),
+	.sysc_fields	= &omap_hwmod_sysc_type2,
+};
+
+/* 'tptc' class */
+static struct omap_hwmod_class am33xx_tptc_hwmod_class = {
+	.name		= "tptc",
+	.sysc		= &am33xx_tptc_sysc,
+};
+
+/* tptc0 */
+struct omap_hwmod am33xx_tptc0_hwmod = {
+	.name		= "tptc0",
+	.class		= &am33xx_tptc_hwmod_class,
+	.clkdm_name	= "l3_clkdm",
+	.flags		= HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY,
+	.main_clk	= "l3_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_TPTC0_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* tptc1 */
+struct omap_hwmod am33xx_tptc1_hwmod = {
+	.name		= "tptc1",
+	.class		= &am33xx_tptc_hwmod_class,
+	.clkdm_name	= "l3_clkdm",
+	.flags		= (HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY),
+	.main_clk	= "l3_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_TPTC1_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* tptc2 */
+struct omap_hwmod am33xx_tptc2_hwmod = {
+	.name		= "tptc2",
+	.class		= &am33xx_tptc_hwmod_class,
+	.clkdm_name	= "l3_clkdm",
+	.flags		= (HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY),
+	.main_clk	= "l3_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_TPTC2_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* 'uart' class */
+static struct omap_hwmod_class_sysconfig uart_sysc = {
+	.rev_offs	= 0x50,
+	.sysc_offs	= 0x54,
+	.syss_offs	= 0x58,
+	.sysc_flags	= (SYSC_HAS_SIDLEMODE | SYSC_HAS_ENAWAKEUP |
+			  SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
+			  SIDLE_SMART_WKUP),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class uart_class = {
+	.name		= "uart",
+	.sysc		= &uart_sysc,
+};
+
+struct omap_hwmod am33xx_uart1_hwmod = {
+	.name		= "uart1",
+	.class		= &uart_class,
+	.clkdm_name	= "l4_wkup_clkdm",
+	.flags		= DEBUG_AM33XXUART1_FLAGS | HWMOD_SWSUP_SIDLE_ACT,
+	.main_clk	= "dpll_per_m2_div4_wkupdm_ck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_WKUP_UART0_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+struct omap_hwmod am33xx_uart2_hwmod = {
+	.name		= "uart2",
+	.class		= &uart_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.flags		= HWMOD_SWSUP_SIDLE_ACT,
+	.main_clk	= "dpll_per_m2_div4_ck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_UART1_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* uart3 */
+struct omap_hwmod am33xx_uart3_hwmod = {
+	.name		= "uart3",
+	.class		= &uart_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.flags		= HWMOD_SWSUP_SIDLE_ACT,
+	.main_clk	= "dpll_per_m2_div4_ck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_UART2_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+struct omap_hwmod am33xx_uart4_hwmod = {
+	.name		= "uart4",
+	.class		= &uart_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.flags		= HWMOD_SWSUP_SIDLE_ACT,
+	.main_clk	= "dpll_per_m2_div4_ck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_UART3_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+struct omap_hwmod am33xx_uart5_hwmod = {
+	.name		= "uart5",
+	.class		= &uart_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.flags		= HWMOD_SWSUP_SIDLE_ACT,
+	.main_clk	= "dpll_per_m2_div4_ck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_UART4_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+struct omap_hwmod am33xx_uart6_hwmod = {
+	.name		= "uart6",
+	.class		= &uart_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.flags		= HWMOD_SWSUP_SIDLE_ACT,
+	.main_clk	= "dpll_per_m2_div4_ck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_PER_UART5_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+/* 'wd_timer' class */
+static struct omap_hwmod_class_sysconfig wdt_sysc = {
+	.rev_offs	= 0x0,
+	.sysc_offs	= 0x10,
+	.syss_offs	= 0x14,
+	.sysc_flags	= (SYSC_HAS_EMUFREE | SYSC_HAS_SIDLEMODE |
+			SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
+			SIDLE_SMART_WKUP),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class am33xx_wd_timer_hwmod_class = {
+	.name		= "wd_timer",
+	.sysc		= &wdt_sysc,
+	.pre_shutdown	= &omap2_wd_timer_disable,
+};
+
+/*
+ * XXX: device.c file uses hardcoded name for watchdog timer
+ * driver "wd_timer2, so we are also using same name as of now...
+ */
+struct omap_hwmod am33xx_wd_timer1_hwmod = {
+	.name		= "wd_timer2",
+	.class		= &am33xx_wd_timer_hwmod_class,
+	.clkdm_name	= "l4_wkup_clkdm",
+	.flags		= HWMOD_SWSUP_SIDLE,
+	.main_clk	= "wdt1_fck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM33XX_CM_WKUP_WDT1_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
index a166e5394113..1b76fc7a911d 100644
--- a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
@@ -29,6 +29,7 @@
 #include "i2c.h"
 #include "mmc.h"
 #include "wd_timer.h"
+#include "omap_hwmod_33xx_43xx_common_data.h"
 
 /*
  * IP blocks
@@ -62,73 +63,6 @@ static struct omap_hwmod am33xx_emif_hwmod = {
 	},
 };
 
-/*
- * 'l3' class
- * instance(s): l3_main, l3_s, l3_instr
- */
-static struct omap_hwmod_class am33xx_l3_hwmod_class = {
-	.name		= "l3",
-};
-
-static struct omap_hwmod am33xx_l3_main_hwmod = {
-	.name		= "l3_main",
-	.class		= &am33xx_l3_hwmod_class,
-	.clkdm_name	= "l3_clkdm",
-	.flags		= HWMOD_INIT_NO_IDLE,
-	.main_clk	= "l3_gclk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_L3_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/* l3_s */
-static struct omap_hwmod am33xx_l3_s_hwmod = {
-	.name		= "l3_s",
-	.class		= &am33xx_l3_hwmod_class,
-	.clkdm_name	= "l3s_clkdm",
-};
-
-/* l3_instr */
-static struct omap_hwmod am33xx_l3_instr_hwmod = {
-	.name		= "l3_instr",
-	.class		= &am33xx_l3_hwmod_class,
-	.clkdm_name	= "l3_clkdm",
-	.flags		= HWMOD_INIT_NO_IDLE,
-	.main_clk	= "l3_gclk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_L3_INSTR_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/*
- * 'l4' class
- * instance(s): l4_ls, l4_hs, l4_wkup, l4_fw
- */
-static struct omap_hwmod_class am33xx_l4_hwmod_class = {
-	.name		= "l4",
-};
-
-/* l4_ls */
-static struct omap_hwmod am33xx_l4_ls_hwmod = {
-	.name		= "l4_ls",
-	.class		= &am33xx_l4_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.flags		= HWMOD_INIT_NO_IDLE,
-	.main_clk	= "l4ls_gclk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_L4LS_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
 /* l4_hs */
 static struct omap_hwmod am33xx_l4_hs_hwmod = {
 	.name		= "l4_hs",
@@ -144,50 +78,6 @@ static struct omap_hwmod am33xx_l4_hs_hwmod = {
 	},
 };
 
-
-/* l4_wkup */
-static struct omap_hwmod am33xx_l4_wkup_hwmod = {
-	.name		= "l4_wkup",
-	.class		= &am33xx_l4_hwmod_class,
-	.clkdm_name	= "l4_wkup_clkdm",
-	.flags		= HWMOD_INIT_NO_IDLE,
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_WKUP_L4WKUP_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/*
- * 'mpu' class
- */
-static struct omap_hwmod_class am33xx_mpu_hwmod_class = {
-	.name	= "mpu",
-};
-
-static struct omap_hwmod am33xx_mpu_hwmod = {
-	.name		= "mpu",
-	.class		= &am33xx_mpu_hwmod_class,
-	.clkdm_name	= "mpu_clkdm",
-	.flags		= HWMOD_INIT_NO_IDLE,
-	.main_clk	= "dpll_mpu_m2_ck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_MPU_MPU_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/*
- * 'wakeup m3' class
- * Wakeup controller sub-system under wakeup domain
- */
-static struct omap_hwmod_class am33xx_wkup_m3_hwmod_class = {
-	.name		= "wkup_m3",
-};
-
 static struct omap_hwmod_rst_info am33xx_wkup_m3_resets[] = {
 	{ .name = "wkup_m3", .rst_shift = 3, .st_shift = 5 },
 };
@@ -212,78 +102,6 @@ static struct omap_hwmod am33xx_wkup_m3_hwmod = {
 	.rst_lines_cnt	= ARRAY_SIZE(am33xx_wkup_m3_resets),
 };
 
-/*
- * 'pru-icss' class
- * Programmable Real-Time Unit and Industrial Communication Subsystem
- */
-static struct omap_hwmod_class am33xx_pruss_hwmod_class = {
-	.name	= "pruss",
-};
-
-static struct omap_hwmod_rst_info am33xx_pruss_resets[] = {
-	{ .name = "pruss", .rst_shift = 1 },
-};
-
-/* pru-icss */
-/* Pseudo hwmod for reset control purpose only */
-static struct omap_hwmod am33xx_pruss_hwmod = {
-	.name		= "pruss",
-	.class		= &am33xx_pruss_hwmod_class,
-	.clkdm_name	= "pruss_ocp_clkdm",
-	.main_clk	= "pruss_ocp_gclk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_PRUSS_CLKCTRL_OFFSET,
-			.rstctrl_offs	= AM33XX_RM_PER_RSTCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-	.rst_lines	= am33xx_pruss_resets,
-	.rst_lines_cnt	= ARRAY_SIZE(am33xx_pruss_resets),
-};
-
-/* gfx */
-/* Pseudo hwmod for reset control purpose only */
-static struct omap_hwmod_class am33xx_gfx_hwmod_class = {
-	.name	= "gfx",
-};
-
-static struct omap_hwmod_rst_info am33xx_gfx_resets[] = {
-	{ .name = "gfx", .rst_shift = 0, .st_shift = 0},
-};
-
-static struct omap_hwmod am33xx_gfx_hwmod = {
-	.name		= "gfx",
-	.class		= &am33xx_gfx_hwmod_class,
-	.clkdm_name	= "gfx_l3_clkdm",
-	.main_clk	= "gfx_fck_div_ck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_GFX_GFX_CLKCTRL_OFFSET,
-			.rstctrl_offs	= AM33XX_RM_GFX_RSTCTRL_OFFSET,
-			.rstst_offs	= AM33XX_RM_GFX_RSTST_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-	.rst_lines	= am33xx_gfx_resets,
-	.rst_lines_cnt	= ARRAY_SIZE(am33xx_gfx_resets),
-};
-
-/*
- * 'prcm' class
- * power and reset manager (whole prcm infrastructure)
- */
-static struct omap_hwmod_class am33xx_prcm_hwmod_class = {
-	.name	= "prcm",
-};
-
-/* prcm */
-static struct omap_hwmod am33xx_prcm_hwmod = {
-	.name		= "prcm",
-	.class		= &am33xx_prcm_hwmod_class,
-	.clkdm_name	= "l4_wkup_clkdm",
-};
-
 /*
  * 'adc/tsc' class
  * TouchScreen Controller (Anolog-To-Digital Converter)
@@ -387,79 +205,6 @@ static struct omap_hwmod am33xx_ocpwp_hwmod = {
 };
 #endif
 
-/*
- * 'aes0' class
- */
-static struct omap_hwmod_class_sysconfig am33xx_aes0_sysc = {
-	.rev_offs	= 0x80,
-	.sysc_offs	= 0x84,
-	.syss_offs	= 0x88,
-	.sysc_flags	= SYSS_HAS_RESET_STATUS,
-};
-
-static struct omap_hwmod_class am33xx_aes0_hwmod_class = {
-	.name		= "aes0",
-	.sysc		= &am33xx_aes0_sysc,
-};
-
-static struct omap_hwmod am33xx_aes0_hwmod = {
-	.name		= "aes",
-	.class		= &am33xx_aes0_hwmod_class,
-	.clkdm_name	= "l3_clkdm",
-	.main_clk	= "aes0_fck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_AES0_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/* sha0 HIB2 (the 'P' (public) device) */
-static struct omap_hwmod_class_sysconfig am33xx_sha0_sysc = {
-	.rev_offs	= 0x100,
-	.sysc_offs	= 0x110,
-	.syss_offs	= 0x114,
-	.sysc_flags	= SYSS_HAS_RESET_STATUS,
-};
-
-static struct omap_hwmod_class am33xx_sha0_hwmod_class = {
-	.name		= "sha0",
-	.sysc		= &am33xx_sha0_sysc,
-};
-
-static struct omap_hwmod am33xx_sha0_hwmod = {
-	.name		= "sham",
-	.class		= &am33xx_sha0_hwmod_class,
-	.clkdm_name	= "l3_clkdm",
-	.main_clk	= "l3_gclk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_SHA0_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/* ocmcram */
-static struct omap_hwmod_class am33xx_ocmcram_hwmod_class = {
-	.name = "ocmcram",
-};
-
-static struct omap_hwmod am33xx_ocmcram_hwmod = {
-	.name		= "ocmcram",
-	.class		= &am33xx_ocmcram_hwmod_class,
-	.clkdm_name	= "l3_clkdm",
-	.flags		= HWMOD_INIT_NO_IDLE,
-	.main_clk	= "l3_gclk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_OCMCRAM_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
 /*
  * 'debugss' class
  * debug sub system
@@ -488,46 +233,6 @@ static struct omap_hwmod am33xx_debugss_hwmod = {
 	.opt_clks_cnt	= ARRAY_SIZE(debugss_opt_clks),
 };
 
-/* 'smartreflex' class */
-static struct omap_hwmod_class am33xx_smartreflex_hwmod_class = {
-	.name		= "smartreflex",
-};
-
-/* smartreflex0 */
-static struct omap_hwmod am33xx_smartreflex0_hwmod = {
-	.name		= "smartreflex0",
-	.class		= &am33xx_smartreflex_hwmod_class,
-	.clkdm_name	= "l4_wkup_clkdm",
-	.main_clk	= "smartreflex0_fck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_WKUP_SMARTREFLEX0_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/* smartreflex1 */
-static struct omap_hwmod am33xx_smartreflex1_hwmod = {
-	.name		= "smartreflex1",
-	.class		= &am33xx_smartreflex_hwmod_class,
-	.clkdm_name	= "l4_wkup_clkdm",
-	.main_clk	= "smartreflex1_fck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_WKUP_SMARTREFLEX1_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/*
- * 'control' module class
- */
-static struct omap_hwmod_class am33xx_control_hwmod_class = {
-	.name		= "control",
-};
-
 static struct omap_hwmod am33xx_control_hwmod = {
 	.name		= "control",
 	.class		= &am33xx_control_hwmod_class,
@@ -542,1845 +247,247 @@ static struct omap_hwmod am33xx_control_hwmod = {
 	},
 };
 
-/*
- * 'cpgmac' class
- * cpsw/cpgmac sub system
- */
-static struct omap_hwmod_class_sysconfig am33xx_cpgmac_sysc = {
-	.rev_offs	= 0x0,
-	.sysc_offs	= 0x8,
-	.syss_offs	= 0x4,
-	.sysc_flags	= (SYSC_HAS_SIDLEMODE | SYSC_HAS_MIDLEMODE |
-			   SYSS_HAS_RESET_STATUS),
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | MSTANDBY_FORCE |
-			   MSTANDBY_NO),
-	.sysc_fields	= &omap_hwmod_sysc_type3,
-};
-
-static struct omap_hwmod_class am33xx_cpgmac0_hwmod_class = {
-	.name		= "cpgmac0",
-	.sysc		= &am33xx_cpgmac_sysc,
-};
-
-static struct omap_hwmod am33xx_cpgmac0_hwmod = {
-	.name		= "cpgmac0",
-	.class		= &am33xx_cpgmac0_hwmod_class,
-	.clkdm_name	= "cpsw_125mhz_clkdm",
-	.flags		= (HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY),
-	.main_clk	= "cpsw_125mhz_gclk",
-	.mpu_rt_idx	= 1,
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_CPGMAC0_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/*
- * mdio class
- */
-static struct omap_hwmod_class am33xx_mdio_hwmod_class = {
-	.name		= "davinci_mdio",
-};
-
-static struct omap_hwmod am33xx_mdio_hwmod = {
-	.name		= "davinci_mdio",
-	.class		= &am33xx_mdio_hwmod_class,
-	.clkdm_name	= "cpsw_125mhz_clkdm",
-	.main_clk	= "cpsw_125mhz_gclk",
-};
-
-/*
- * dcan class
- */
-static struct omap_hwmod_class am33xx_dcan_hwmod_class = {
-	.name = "d_can",
-};
-
-/* dcan0 */
-static struct omap_hwmod am33xx_dcan0_hwmod = {
-	.name		= "d_can0",
-	.class		= &am33xx_dcan_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "dcan0_fck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_DCAN0_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
+/* gpio0 */
+static struct omap_hwmod_opt_clk gpio0_opt_clks[] = {
+	{ .role = "dbclk", .clk = "gpio0_dbclk" },
 };
 
-/* dcan1 */
-static struct omap_hwmod am33xx_dcan1_hwmod = {
-	.name		= "d_can1",
-	.class		= &am33xx_dcan_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "dcan1_fck",
+static struct omap_hwmod am33xx_gpio0_hwmod = {
+	.name		= "gpio1",
+	.class		= &am33xx_gpio_hwmod_class,
+	.clkdm_name	= "l4_wkup_clkdm",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
+	.main_clk	= "dpll_core_m4_div2_ck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_DCAN1_CLKCTRL_OFFSET,
+			.clkctrl_offs	= AM33XX_CM_WKUP_GPIO0_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
+	.opt_clks	= gpio0_opt_clks,
+	.opt_clks_cnt	= ARRAY_SIZE(gpio0_opt_clks),
+	.dev_attr	= &gpio_dev_attr,
 };
 
-/* elm */
-static struct omap_hwmod_class_sysconfig am33xx_elm_sysc = {
-	.rev_offs	= 0x0000,
-	.sysc_offs	= 0x0010,
-	.syss_offs	= 0x0014,
-	.sysc_flags	= (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE |
-			SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE |
-			SYSS_HAS_RESET_STATUS),
+/* lcdc */
+static struct omap_hwmod_class_sysconfig lcdc_sysc = {
+	.rev_offs	= 0x0,
+	.sysc_offs	= 0x54,
+	.sysc_flags	= (SYSC_HAS_SIDLEMODE | SYSC_HAS_MIDLEMODE),
 	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
-	.sysc_fields	= &omap_hwmod_sysc_type1,
+	.sysc_fields	= &omap_hwmod_sysc_type2,
 };
 
-static struct omap_hwmod_class am33xx_elm_hwmod_class = {
-	.name		= "elm",
-	.sysc		= &am33xx_elm_sysc,
+static struct omap_hwmod_class am33xx_lcdc_hwmod_class = {
+	.name		= "lcdc",
+	.sysc		= &lcdc_sysc,
 };
 
-static struct omap_hwmod am33xx_elm_hwmod = {
-	.name		= "elm",
-	.class		= &am33xx_elm_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "l4ls_gclk",
+static struct omap_hwmod am33xx_lcdc_hwmod = {
+	.name		= "lcdc",
+	.class		= &am33xx_lcdc_hwmod_class,
+	.clkdm_name	= "lcdc_clkdm",
+	.flags		= HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY,
+	.main_clk	= "lcd_gclk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_ELM_CLKCTRL_OFFSET,
+			.clkctrl_offs	= AM33XX_CM_PER_LCDC_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
 };
 
-/* pwmss  */
-static struct omap_hwmod_class_sysconfig am33xx_epwmss_sysc = {
+/*
+ * 'usb_otg' class
+ * high-speed on-the-go universal serial bus (usb_otg) controller
+ */
+static struct omap_hwmod_class_sysconfig am33xx_usbhsotg_sysc = {
 	.rev_offs	= 0x0,
-	.sysc_offs	= 0x4,
+	.sysc_offs	= 0x10,
 	.sysc_flags	= (SYSC_HAS_SIDLEMODE | SYSC_HAS_MIDLEMODE),
 	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
-			SIDLE_SMART_WKUP | MSTANDBY_FORCE | MSTANDBY_NO |
-			MSTANDBY_SMART | MSTANDBY_SMART_WKUP),
+			  MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART),
 	.sysc_fields	= &omap_hwmod_sysc_type2,
 };
 
-static struct omap_hwmod_class am33xx_epwmss_hwmod_class = {
-	.name		= "epwmss",
-	.sysc		= &am33xx_epwmss_sysc,
-};
-
-static struct omap_hwmod_class am33xx_ecap_hwmod_class = {
-	.name		= "ecap",
-};
-
-static struct omap_hwmod_class am33xx_eqep_hwmod_class = {
-	.name		= "eqep",
-};
-
-static struct omap_hwmod_class am33xx_ehrpwm_hwmod_class = {
-	.name		= "ehrpwm",
+static struct omap_hwmod_class am33xx_usbotg_class = {
+	.name		= "usbotg",
+	.sysc		= &am33xx_usbhsotg_sysc,
 };
 
-/* epwmss0 */
-static struct omap_hwmod am33xx_epwmss0_hwmod = {
-	.name		= "epwmss0",
-	.class		= &am33xx_epwmss_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "l4ls_gclk",
+static struct omap_hwmod am33xx_usbss_hwmod = {
+	.name		= "usb_otg_hs",
+	.class		= &am33xx_usbotg_class,
+	.clkdm_name	= "l3s_clkdm",
+	.flags		= HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY,
+	.main_clk	= "usbotg_fck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_EPWMSS0_CLKCTRL_OFFSET,
+			.clkctrl_offs	= AM33XX_CM_PER_USB0_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
 };
 
-/* ecap0 */
-static struct omap_hwmod am33xx_ecap0_hwmod = {
-	.name		= "ecap0",
-	.class		= &am33xx_ecap_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "l4ls_gclk",
-};
-
-/* eqep0 */
-static struct omap_hwmod am33xx_eqep0_hwmod = {
-	.name		= "eqep0",
-	.class		= &am33xx_eqep_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "l4ls_gclk",
-};
 
-/* ehrpwm0 */
-static struct omap_hwmod am33xx_ehrpwm0_hwmod = {
-	.name		= "ehrpwm0",
-	.class		= &am33xx_ehrpwm_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "l4ls_gclk",
-};
-
-/* epwmss1 */
-static struct omap_hwmod am33xx_epwmss1_hwmod = {
-	.name		= "epwmss1",
-	.class		= &am33xx_epwmss_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "l4ls_gclk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_EPWMSS1_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/* ecap1 */
-static struct omap_hwmod am33xx_ecap1_hwmod = {
-	.name		= "ecap1",
-	.class		= &am33xx_ecap_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "l4ls_gclk",
-};
-
-/* eqep1 */
-static struct omap_hwmod am33xx_eqep1_hwmod = {
-	.name		= "eqep1",
-	.class		= &am33xx_eqep_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "l4ls_gclk",
-};
-
-/* ehrpwm1 */
-static struct omap_hwmod am33xx_ehrpwm1_hwmod = {
-	.name		= "ehrpwm1",
-	.class		= &am33xx_ehrpwm_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "l4ls_gclk",
-};
-
-/* epwmss2 */
-static struct omap_hwmod am33xx_epwmss2_hwmod = {
-	.name		= "epwmss2",
-	.class		= &am33xx_epwmss_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "l4ls_gclk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_EPWMSS2_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/* ecap2 */
-static struct omap_hwmod am33xx_ecap2_hwmod = {
-	.name		= "ecap2",
-	.class		= &am33xx_ecap_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "l4ls_gclk",
-};
-
-/* eqep2 */
-static struct omap_hwmod am33xx_eqep2_hwmod = {
-	.name		= "eqep2",
-	.class		= &am33xx_eqep_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "l4ls_gclk",
-};
-
-/* ehrpwm2 */
-static struct omap_hwmod am33xx_ehrpwm2_hwmod = {
-	.name		= "ehrpwm2",
-	.class		= &am33xx_ehrpwm_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "l4ls_gclk",
-};
-
-/*
- * 'gpio' class: for gpio 0,1,2,3
- */
-static struct omap_hwmod_class_sysconfig am33xx_gpio_sysc = {
-	.rev_offs	= 0x0000,
-	.sysc_offs	= 0x0010,
-	.syss_offs	= 0x0114,
-	.sysc_flags	= (SYSC_HAS_AUTOIDLE | SYSC_HAS_ENAWAKEUP |
-			  SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET |
-			  SYSS_HAS_RESET_STATUS),
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
-			  SIDLE_SMART_WKUP),
-	.sysc_fields	= &omap_hwmod_sysc_type1,
-};
-
-static struct omap_hwmod_class am33xx_gpio_hwmod_class = {
-	.name		= "gpio",
-	.sysc		= &am33xx_gpio_sysc,
-	.rev		= 2,
-};
-
-static struct omap_gpio_dev_attr gpio_dev_attr = {
-	.bank_width	= 32,
-	.dbck_flag	= true,
-};
-
-/* gpio0 */
-static struct omap_hwmod_opt_clk gpio0_opt_clks[] = {
-	{ .role = "dbclk", .clk = "gpio0_dbclk" },
-};
-
-static struct omap_hwmod am33xx_gpio0_hwmod = {
-	.name		= "gpio1",
-	.class		= &am33xx_gpio_hwmod_class,
-	.clkdm_name	= "l4_wkup_clkdm",
-	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
-	.main_clk	= "dpll_core_m4_div2_ck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_WKUP_GPIO0_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-	.opt_clks	= gpio0_opt_clks,
-	.opt_clks_cnt	= ARRAY_SIZE(gpio0_opt_clks),
-	.dev_attr	= &gpio_dev_attr,
-};
-
-/* gpio1 */
-static struct omap_hwmod_opt_clk gpio1_opt_clks[] = {
-	{ .role = "dbclk", .clk = "gpio1_dbclk" },
-};
-
-static struct omap_hwmod am33xx_gpio1_hwmod = {
-	.name		= "gpio2",
-	.class		= &am33xx_gpio_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
-	.main_clk	= "l4ls_gclk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_GPIO1_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-	.opt_clks	= gpio1_opt_clks,
-	.opt_clks_cnt	= ARRAY_SIZE(gpio1_opt_clks),
-	.dev_attr	= &gpio_dev_attr,
-};
-
-/* gpio2 */
-static struct omap_hwmod_opt_clk gpio2_opt_clks[] = {
-	{ .role = "dbclk", .clk = "gpio2_dbclk" },
-};
-
-static struct omap_hwmod am33xx_gpio2_hwmod = {
-	.name		= "gpio3",
-	.class		= &am33xx_gpio_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
-	.main_clk	= "l4ls_gclk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_GPIO2_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-	.opt_clks	= gpio2_opt_clks,
-	.opt_clks_cnt	= ARRAY_SIZE(gpio2_opt_clks),
-	.dev_attr	= &gpio_dev_attr,
-};
-
-/* gpio3 */
-static struct omap_hwmod_opt_clk gpio3_opt_clks[] = {
-	{ .role = "dbclk", .clk = "gpio3_dbclk" },
-};
-
-static struct omap_hwmod am33xx_gpio3_hwmod = {
-	.name		= "gpio4",
-	.class		= &am33xx_gpio_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
-	.main_clk	= "l4ls_gclk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_GPIO3_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-	.opt_clks	= gpio3_opt_clks,
-	.opt_clks_cnt	= ARRAY_SIZE(gpio3_opt_clks),
-	.dev_attr	= &gpio_dev_attr,
-};
-
-/* gpmc */
-static struct omap_hwmod_class_sysconfig gpmc_sysc = {
-	.rev_offs	= 0x0,
-	.sysc_offs	= 0x10,
-	.syss_offs	= 0x14,
-	.sysc_flags	= (SYSC_HAS_AUTOIDLE | SYSC_HAS_SIDLEMODE |
-			SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
-	.sysc_fields	= &omap_hwmod_sysc_type1,
-};
-
-static struct omap_hwmod_class am33xx_gpmc_hwmod_class = {
-	.name		= "gpmc",
-	.sysc		= &gpmc_sysc,
-};
-
-static struct omap_hwmod am33xx_gpmc_hwmod = {
-	.name		= "gpmc",
-	.class		= &am33xx_gpmc_hwmod_class,
-	.clkdm_name	= "l3s_clkdm",
-	.flags		= (HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET),
-	.main_clk	= "l3s_gclk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_GPMC_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/* 'i2c' class */
-static struct omap_hwmod_class_sysconfig am33xx_i2c_sysc = {
-	.sysc_offs	= 0x0010,
-	.syss_offs	= 0x0090,
-	.sysc_flags	= (SYSC_HAS_AUTOIDLE | SYSC_HAS_CLOCKACTIVITY |
-			  SYSC_HAS_ENAWAKEUP | SYSC_HAS_SIDLEMODE |
-			  SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
-			  SIDLE_SMART_WKUP),
-	.sysc_fields	= &omap_hwmod_sysc_type1,
-};
-
-static struct omap_hwmod_class i2c_class = {
-	.name		= "i2c",
-	.sysc		= &am33xx_i2c_sysc,
-	.rev		= OMAP_I2C_IP_VERSION_2,
-	.reset		= &omap_i2c_reset,
-};
-
-static struct omap_i2c_dev_attr i2c_dev_attr = {
-	.flags = OMAP_I2C_FLAG_BUS_SHIFT_NONE,
-};
-
-/* i2c1 */
-static struct omap_hwmod am33xx_i2c1_hwmod = {
-	.name		= "i2c1",
-	.class		= &i2c_class,
-	.clkdm_name	= "l4_wkup_clkdm",
-	.flags		= HWMOD_16BIT_REG | HWMOD_SET_DEFAULT_CLOCKACT,
-	.main_clk	= "dpll_per_m2_div4_wkupdm_ck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_WKUP_I2C0_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-	.dev_attr	= &i2c_dev_attr,
-};
-
-/* i2c1 */
-static struct omap_hwmod am33xx_i2c2_hwmod = {
-	.name		= "i2c2",
-	.class		= &i2c_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.flags		= HWMOD_16BIT_REG | HWMOD_SET_DEFAULT_CLOCKACT,
-	.main_clk	= "dpll_per_m2_div4_ck",
-	.prcm		= {
-		.omap4 = {
-			.clkctrl_offs	= AM33XX_CM_PER_I2C1_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-	.dev_attr	= &i2c_dev_attr,
-};
-
-/* i2c3 */
-static struct omap_hwmod am33xx_i2c3_hwmod = {
-	.name		= "i2c3",
-	.class		= &i2c_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.flags		= HWMOD_16BIT_REG | HWMOD_SET_DEFAULT_CLOCKACT,
-	.main_clk	= "dpll_per_m2_div4_ck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_I2C2_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-	.dev_attr	= &i2c_dev_attr,
-};
-
-
-/* lcdc */
-static struct omap_hwmod_class_sysconfig lcdc_sysc = {
-	.rev_offs	= 0x0,
-	.sysc_offs	= 0x54,
-	.sysc_flags	= (SYSC_HAS_SIDLEMODE | SYSC_HAS_MIDLEMODE),
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
-	.sysc_fields	= &omap_hwmod_sysc_type2,
-};
-
-static struct omap_hwmod_class am33xx_lcdc_hwmod_class = {
-	.name		= "lcdc",
-	.sysc		= &lcdc_sysc,
-};
-
-static struct omap_hwmod am33xx_lcdc_hwmod = {
-	.name		= "lcdc",
-	.class		= &am33xx_lcdc_hwmod_class,
-	.clkdm_name	= "lcdc_clkdm",
-	.flags		= HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY,
-	.main_clk	= "lcd_gclk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_LCDC_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/*
- * 'mailbox' class
- * mailbox module allowing communication between the on-chip processors using a
- * queued mailbox-interrupt mechanism.
- */
-static struct omap_hwmod_class_sysconfig am33xx_mailbox_sysc = {
-	.rev_offs	= 0x0000,
-	.sysc_offs	= 0x0010,
-	.sysc_flags	= (SYSC_HAS_RESET_STATUS | SYSC_HAS_SIDLEMODE |
-			  SYSC_HAS_SOFTRESET),
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
-	.sysc_fields	= &omap_hwmod_sysc_type2,
-};
-
-static struct omap_hwmod_class am33xx_mailbox_hwmod_class = {
-	.name	= "mailbox",
-	.sysc	= &am33xx_mailbox_sysc,
-};
-
-static struct omap_hwmod am33xx_mailbox_hwmod = {
-	.name		= "mailbox",
-	.class		= &am33xx_mailbox_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "l4ls_gclk",
-	.prcm = {
-		.omap4 = {
-			.clkctrl_offs	= AM33XX_CM_PER_MAILBOX0_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/*
- * 'mcasp' class
- */
-static struct omap_hwmod_class_sysconfig am33xx_mcasp_sysc = {
-	.rev_offs	= 0x0,
-	.sysc_offs	= 0x4,
-	.sysc_flags	= SYSC_HAS_SIDLEMODE,
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
-	.sysc_fields	= &omap_hwmod_sysc_type3,
-};
-
-static struct omap_hwmod_class am33xx_mcasp_hwmod_class = {
-	.name		= "mcasp",
-	.sysc		= &am33xx_mcasp_sysc,
-};
-
-/* mcasp0 */
-static struct omap_hwmod am33xx_mcasp0_hwmod = {
-	.name		= "mcasp0",
-	.class		= &am33xx_mcasp_hwmod_class,
-	.clkdm_name	= "l3s_clkdm",
-	.main_clk	= "mcasp0_fck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_MCASP0_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/* mcasp1 */
-static struct omap_hwmod am33xx_mcasp1_hwmod = {
-	.name		= "mcasp1",
-	.class		= &am33xx_mcasp_hwmod_class,
-	.clkdm_name	= "l3s_clkdm",
-	.main_clk	= "mcasp1_fck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_MCASP1_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/* 'mmc' class */
-static struct omap_hwmod_class_sysconfig am33xx_mmc_sysc = {
-	.rev_offs	= 0x1fc,
-	.sysc_offs	= 0x10,
-	.syss_offs	= 0x14,
-	.sysc_flags	= (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE |
-			  SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET |
-			  SYSC_HAS_AUTOIDLE | SYSS_HAS_RESET_STATUS),
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
-	.sysc_fields	= &omap_hwmod_sysc_type1,
-};
-
-static struct omap_hwmod_class am33xx_mmc_hwmod_class = {
-	.name		= "mmc",
-	.sysc		= &am33xx_mmc_sysc,
-};
-
-/* mmc0 */
-static struct omap_mmc_dev_attr am33xx_mmc0_dev_attr = {
-	.flags		= OMAP_HSMMC_SUPPORTS_DUAL_VOLT,
-};
-
-static struct omap_hwmod am33xx_mmc0_hwmod = {
-	.name		= "mmc1",
-	.class		= &am33xx_mmc_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "mmc_clk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_MMC0_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-	.dev_attr	= &am33xx_mmc0_dev_attr,
-};
-
-/* mmc1 */
-static struct omap_mmc_dev_attr am33xx_mmc1_dev_attr = {
-	.flags		= OMAP_HSMMC_SUPPORTS_DUAL_VOLT,
-};
-
-static struct omap_hwmod am33xx_mmc1_hwmod = {
-	.name		= "mmc2",
-	.class		= &am33xx_mmc_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "mmc_clk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_MMC1_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-	.dev_attr	= &am33xx_mmc1_dev_attr,
-};
-
-/* mmc2 */
-static struct omap_mmc_dev_attr am33xx_mmc2_dev_attr = {
-	.flags		= OMAP_HSMMC_SUPPORTS_DUAL_VOLT,
-};
-static struct omap_hwmod am33xx_mmc2_hwmod = {
-	.name		= "mmc3",
-	.class		= &am33xx_mmc_hwmod_class,
-	.clkdm_name	= "l3s_clkdm",
-	.main_clk	= "mmc_clk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_MMC2_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-	.dev_attr	= &am33xx_mmc2_dev_attr,
-};
-
-/*
- * 'rtc' class
- * rtc subsystem
- */
-static struct omap_hwmod_class_sysconfig am33xx_rtc_sysc = {
-	.rev_offs	= 0x0074,
-	.sysc_offs	= 0x0078,
-	.sysc_flags	= SYSC_HAS_SIDLEMODE,
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO |
-			  SIDLE_SMART | SIDLE_SMART_WKUP),
-	.sysc_fields	= &omap_hwmod_sysc_type3,
-};
-
-static struct omap_hwmod_class am33xx_rtc_hwmod_class = {
-	.name		= "rtc",
-	.sysc		= &am33xx_rtc_sysc,
-};
-
-static struct omap_hwmod am33xx_rtc_hwmod = {
-	.name		= "rtc",
-	.class		= &am33xx_rtc_hwmod_class,
-	.clkdm_name	= "l4_rtc_clkdm",
-	.main_clk	= "clk_32768_ck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_RTC_RTC_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/* 'spi' class */
-static struct omap_hwmod_class_sysconfig am33xx_mcspi_sysc = {
-	.rev_offs	= 0x0000,
-	.sysc_offs	= 0x0110,
-	.syss_offs	= 0x0114,
-	.sysc_flags	= (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE |
-			  SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE |
-			  SYSS_HAS_RESET_STATUS),
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
-	.sysc_fields	= &omap_hwmod_sysc_type1,
-};
-
-static struct omap_hwmod_class am33xx_spi_hwmod_class = {
-	.name		= "mcspi",
-	.sysc		= &am33xx_mcspi_sysc,
-	.rev		= OMAP4_MCSPI_REV,
-};
-
-/* spi0 */
-static struct omap2_mcspi_dev_attr mcspi_attrib = {
-	.num_chipselect	= 2,
-};
-static struct omap_hwmod am33xx_spi0_hwmod = {
-	.name		= "spi0",
-	.class		= &am33xx_spi_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "dpll_per_m2_div4_ck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_SPI0_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-	.dev_attr	= &mcspi_attrib,
-};
-
-/* spi1 */
-static struct omap_hwmod am33xx_spi1_hwmod = {
-	.name		= "spi1",
-	.class		= &am33xx_spi_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "dpll_per_m2_div4_ck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_SPI1_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-	.dev_attr	= &mcspi_attrib,
-};
-
-/*
- * 'spinlock' class
- * spinlock provides hardware assistance for synchronizing the
- * processes running on multiple processors
- */
-
-static struct omap_hwmod_class_sysconfig am33xx_spinlock_sysc = {
-	.rev_offs	= 0x0000,
-	.sysc_offs	= 0x0010,
-	.syss_offs	= 0x0014,
-	.sysc_flags	= (SYSC_HAS_AUTOIDLE | SYSC_HAS_CLOCKACTIVITY |
-			   SYSC_HAS_ENAWAKEUP | SYSC_HAS_SIDLEMODE |
-			   SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
-	.sysc_fields	= &omap_hwmod_sysc_type1,
-};
-
-static struct omap_hwmod_class am33xx_spinlock_hwmod_class = {
-	.name		= "spinlock",
-	.sysc		= &am33xx_spinlock_sysc,
-};
-
-static struct omap_hwmod am33xx_spinlock_hwmod = {
-	.name		= "spinlock",
-	.class		= &am33xx_spinlock_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "l4ls_gclk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_SPINLOCK_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/* 'timer 2-7' class */
-static struct omap_hwmod_class_sysconfig am33xx_timer_sysc = {
-	.rev_offs	= 0x0000,
-	.sysc_offs	= 0x0010,
-	.syss_offs	= 0x0014,
-	.sysc_flags	= (SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET),
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
-			  SIDLE_SMART_WKUP),
-	.sysc_fields	= &omap_hwmod_sysc_type2,
-};
-
-static struct omap_hwmod_class am33xx_timer_hwmod_class = {
-	.name		= "timer",
-	.sysc		= &am33xx_timer_sysc,
-};
-
-/* timer1 1ms */
-static struct omap_hwmod_class_sysconfig am33xx_timer1ms_sysc = {
-	.rev_offs	= 0x0000,
-	.sysc_offs	= 0x0010,
-	.syss_offs	= 0x0014,
-	.sysc_flags	= (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE |
-			SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE |
-			SYSS_HAS_RESET_STATUS),
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
-	.sysc_fields	= &omap_hwmod_sysc_type1,
-};
-
-static struct omap_hwmod_class am33xx_timer1ms_hwmod_class = {
-	.name		= "timer",
-	.sysc		= &am33xx_timer1ms_sysc,
-};
-
-static struct omap_hwmod am33xx_timer1_hwmod = {
-	.name		= "timer1",
-	.class		= &am33xx_timer1ms_hwmod_class,
-	.clkdm_name	= "l4_wkup_clkdm",
-	.main_clk	= "timer1_fck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_WKUP_TIMER1_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-static struct omap_hwmod am33xx_timer2_hwmod = {
-	.name		= "timer2",
-	.class		= &am33xx_timer_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "timer2_fck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_TIMER2_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-static struct omap_hwmod am33xx_timer3_hwmod = {
-	.name		= "timer3",
-	.class		= &am33xx_timer_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "timer3_fck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_TIMER3_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-static struct omap_hwmod am33xx_timer4_hwmod = {
-	.name		= "timer4",
-	.class		= &am33xx_timer_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "timer4_fck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_TIMER4_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-static struct omap_hwmod am33xx_timer5_hwmod = {
-	.name		= "timer5",
-	.class		= &am33xx_timer_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "timer5_fck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_TIMER5_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-static struct omap_hwmod am33xx_timer6_hwmod = {
-	.name		= "timer6",
-	.class		= &am33xx_timer_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "timer6_fck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_TIMER6_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-static struct omap_hwmod am33xx_timer7_hwmod = {
-	.name		= "timer7",
-	.class		= &am33xx_timer_hwmod_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.main_clk	= "timer7_fck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_TIMER7_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/* tpcc */
-static struct omap_hwmod_class am33xx_tpcc_hwmod_class = {
-	.name		= "tpcc",
-};
-
-static struct omap_hwmod am33xx_tpcc_hwmod = {
-	.name		= "tpcc",
-	.class		= &am33xx_tpcc_hwmod_class,
-	.clkdm_name	= "l3_clkdm",
-	.main_clk	= "l3_gclk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_TPCC_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-static struct omap_hwmod_class_sysconfig am33xx_tptc_sysc = {
-	.rev_offs	= 0x0,
-	.sysc_offs	= 0x10,
-	.sysc_flags	= (SYSC_HAS_SIDLEMODE | SYSC_HAS_SOFTRESET |
-			  SYSC_HAS_MIDLEMODE),
-	.idlemodes	= (SIDLE_FORCE | SIDLE_SMART | MSTANDBY_FORCE),
-	.sysc_fields	= &omap_hwmod_sysc_type2,
-};
-
-/* 'tptc' class */
-static struct omap_hwmod_class am33xx_tptc_hwmod_class = {
-	.name		= "tptc",
-	.sysc		= &am33xx_tptc_sysc,
-};
-
-/* tptc0 */
-static struct omap_hwmod am33xx_tptc0_hwmod = {
-	.name		= "tptc0",
-	.class		= &am33xx_tptc_hwmod_class,
-	.clkdm_name	= "l3_clkdm",
-	.flags		= HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY,
-	.main_clk	= "l3_gclk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_TPTC0_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/* tptc1 */
-static struct omap_hwmod am33xx_tptc1_hwmod = {
-	.name		= "tptc1",
-	.class		= &am33xx_tptc_hwmod_class,
-	.clkdm_name	= "l3_clkdm",
-	.flags		= (HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY),
-	.main_clk	= "l3_gclk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_TPTC1_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/* tptc2 */
-static struct omap_hwmod am33xx_tptc2_hwmod = {
-	.name		= "tptc2",
-	.class		= &am33xx_tptc_hwmod_class,
-	.clkdm_name	= "l3_clkdm",
-	.flags		= (HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY),
-	.main_clk	= "l3_gclk",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_TPTC2_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/* 'uart' class */
-static struct omap_hwmod_class_sysconfig uart_sysc = {
-	.rev_offs	= 0x50,
-	.sysc_offs	= 0x54,
-	.syss_offs	= 0x58,
-	.sysc_flags	= (SYSC_HAS_SIDLEMODE | SYSC_HAS_ENAWAKEUP |
-			  SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE),
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
-			  SIDLE_SMART_WKUP),
-	.sysc_fields	= &omap_hwmod_sysc_type1,
-};
-
-static struct omap_hwmod_class uart_class = {
-	.name		= "uart",
-	.sysc		= &uart_sysc,
-};
-
-/* uart1 */
-static struct omap_hwmod am33xx_uart1_hwmod = {
-	.name		= "uart1",
-	.class		= &uart_class,
-	.clkdm_name	= "l4_wkup_clkdm",
-	.flags		= DEBUG_AM33XXUART1_FLAGS | HWMOD_SWSUP_SIDLE_ACT,
-	.main_clk	= "dpll_per_m2_div4_wkupdm_ck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_WKUP_UART0_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-static struct omap_hwmod am33xx_uart2_hwmod = {
-	.name		= "uart2",
-	.class		= &uart_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.flags		= HWMOD_SWSUP_SIDLE_ACT,
-	.main_clk	= "dpll_per_m2_div4_ck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_UART1_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/* uart3 */
-static struct omap_hwmod am33xx_uart3_hwmod = {
-	.name		= "uart3",
-	.class		= &uart_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.flags		= HWMOD_SWSUP_SIDLE_ACT,
-	.main_clk	= "dpll_per_m2_div4_ck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_UART2_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-static struct omap_hwmod am33xx_uart4_hwmod = {
-	.name		= "uart4",
-	.class		= &uart_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.flags		= HWMOD_SWSUP_SIDLE_ACT,
-	.main_clk	= "dpll_per_m2_div4_ck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_UART3_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-static struct omap_hwmod am33xx_uart5_hwmod = {
-	.name		= "uart5",
-	.class		= &uart_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.flags		= HWMOD_SWSUP_SIDLE_ACT,
-	.main_clk	= "dpll_per_m2_div4_ck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_UART4_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-static struct omap_hwmod am33xx_uart6_hwmod = {
-	.name		= "uart6",
-	.class		= &uart_class,
-	.clkdm_name	= "l4ls_clkdm",
-	.flags		= HWMOD_SWSUP_SIDLE_ACT,
-	.main_clk	= "dpll_per_m2_div4_ck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_UART5_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/* 'wd_timer' class */
-static struct omap_hwmod_class_sysconfig wdt_sysc = {
-	.rev_offs	= 0x0,
-	.sysc_offs	= 0x10,
-	.syss_offs	= 0x14,
-	.sysc_flags	= (SYSC_HAS_EMUFREE | SYSC_HAS_SIDLEMODE |
-			SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
-			SIDLE_SMART_WKUP),
-	.sysc_fields	= &omap_hwmod_sysc_type1,
-};
-
-static struct omap_hwmod_class am33xx_wd_timer_hwmod_class = {
-	.name		= "wd_timer",
-	.sysc		= &wdt_sysc,
-	.pre_shutdown	= &omap2_wd_timer_disable,
-};
-
-/*
- * XXX: device.c file uses hardcoded name for watchdog timer
- * driver "wd_timer2, so we are also using same name as of now...
- */
-static struct omap_hwmod am33xx_wd_timer1_hwmod = {
-	.name		= "wd_timer2",
-	.class		= &am33xx_wd_timer_hwmod_class,
-	.clkdm_name	= "l4_wkup_clkdm",
-	.flags		= HWMOD_SWSUP_SIDLE,
-	.main_clk	= "wdt1_fck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_WKUP_WDT1_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-/*
- * 'usb_otg' class
- * high-speed on-the-go universal serial bus (usb_otg) controller
- */
-static struct omap_hwmod_class_sysconfig am33xx_usbhsotg_sysc = {
-	.rev_offs	= 0x0,
-	.sysc_offs	= 0x10,
-	.sysc_flags	= (SYSC_HAS_SIDLEMODE | SYSC_HAS_MIDLEMODE),
-	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
-			  MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART),
-	.sysc_fields	= &omap_hwmod_sysc_type2,
-};
-
-static struct omap_hwmod_class am33xx_usbotg_class = {
-	.name		= "usbotg",
-	.sysc		= &am33xx_usbhsotg_sysc,
-};
-
-static struct omap_hwmod am33xx_usbss_hwmod = {
-	.name		= "usb_otg_hs",
-	.class		= &am33xx_usbotg_class,
-	.clkdm_name	= "l3s_clkdm",
-	.flags		= HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY,
-	.main_clk	= "usbotg_fck",
-	.prcm		= {
-		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_USB0_CLKCTRL_OFFSET,
-			.modulemode	= MODULEMODE_SWCTRL,
-		},
-	},
-};
-
-
-/*
- * Interfaces
- */
-
-static struct omap_hwmod_addr_space am33xx_emif_addrs[] = {
-	{
-		.pa_start	= 0x4c000000,
-		.pa_end		= 0x4c000fff,
-		.flags		= ADDR_TYPE_RT
-	},
-	{ }
-};
-/* l3 main -> emif */
-static struct omap_hwmod_ocp_if am33xx_l3_main__emif = {
-	.master		= &am33xx_l3_main_hwmod,
-	.slave		= &am33xx_emif_hwmod,
-	.clk		= "dpll_core_m4_ck",
-	.addr		= am33xx_emif_addrs,
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* mpu -> l3 main */
-static struct omap_hwmod_ocp_if am33xx_mpu__l3_main = {
-	.master		= &am33xx_mpu_hwmod,
-	.slave		= &am33xx_l3_main_hwmod,
-	.clk		= "dpll_mpu_m2_ck",
-	.user		= OCP_USER_MPU,
-};
-
-/* l3 main -> l4 hs */
-static struct omap_hwmod_ocp_if am33xx_l3_main__l4_hs = {
-	.master		= &am33xx_l3_main_hwmod,
-	.slave		= &am33xx_l4_hs_hwmod,
-	.clk		= "l3s_gclk",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* l3 main -> l3 s */
-static struct omap_hwmod_ocp_if am33xx_l3_main__l3_s = {
-	.master		= &am33xx_l3_main_hwmod,
-	.slave		= &am33xx_l3_s_hwmod,
-	.clk		= "l3s_gclk",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* l3 s -> l4 per/ls */
-static struct omap_hwmod_ocp_if am33xx_l3_s__l4_ls = {
-	.master		= &am33xx_l3_s_hwmod,
-	.slave		= &am33xx_l4_ls_hwmod,
-	.clk		= "l3s_gclk",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* l3 s -> l4 wkup */
-static struct omap_hwmod_ocp_if am33xx_l3_s__l4_wkup = {
-	.master		= &am33xx_l3_s_hwmod,
-	.slave		= &am33xx_l4_wkup_hwmod,
-	.clk		= "l3s_gclk",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* l3 main -> l3 instr */
-static struct omap_hwmod_ocp_if am33xx_l3_main__l3_instr = {
-	.master		= &am33xx_l3_main_hwmod,
-	.slave		= &am33xx_l3_instr_hwmod,
-	.clk		= "l3s_gclk",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* mpu -> prcm */
-static struct omap_hwmod_ocp_if am33xx_mpu__prcm = {
-	.master		= &am33xx_mpu_hwmod,
-	.slave		= &am33xx_prcm_hwmod,
-	.clk		= "dpll_mpu_m2_ck",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* l3 s -> l3 main*/
-static struct omap_hwmod_ocp_if am33xx_l3_s__l3_main = {
-	.master		= &am33xx_l3_s_hwmod,
-	.slave		= &am33xx_l3_main_hwmod,
-	.clk		= "l3s_gclk",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* pru-icss -> l3 main */
-static struct omap_hwmod_ocp_if am33xx_pruss__l3_main = {
-	.master		= &am33xx_pruss_hwmod,
-	.slave		= &am33xx_l3_main_hwmod,
-	.clk		= "l3_gclk",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* wkup m3 -> l4 wkup */
-static struct omap_hwmod_ocp_if am33xx_wkup_m3__l4_wkup = {
-	.master		= &am33xx_wkup_m3_hwmod,
-	.slave		= &am33xx_l4_wkup_hwmod,
-	.clk		= "dpll_core_m4_div2_ck",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* gfx -> l3 main */
-static struct omap_hwmod_ocp_if am33xx_gfx__l3_main = {
-	.master		= &am33xx_gfx_hwmod,
-	.slave		= &am33xx_l3_main_hwmod,
-	.clk		= "dpll_core_m4_ck",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* l4 wkup -> wkup m3 */
-static struct omap_hwmod_ocp_if am33xx_l4_wkup__wkup_m3 = {
-	.master		= &am33xx_l4_wkup_hwmod,
-	.slave		= &am33xx_wkup_m3_hwmod,
-	.clk		= "dpll_core_m4_div2_ck",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* l4 hs -> pru-icss */
-static struct omap_hwmod_ocp_if am33xx_l4_hs__pruss = {
-	.master		= &am33xx_l4_hs_hwmod,
-	.slave		= &am33xx_pruss_hwmod,
-	.clk		= "dpll_core_m4_ck",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* l3 main -> gfx */
-static struct omap_hwmod_ocp_if am33xx_l3_main__gfx = {
-	.master		= &am33xx_l3_main_hwmod,
-	.slave		= &am33xx_gfx_hwmod,
-	.clk		= "dpll_core_m4_ck",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* l3_main -> debugss */
-static struct omap_hwmod_addr_space am33xx_debugss_addrs[] = {
-	{
-		.pa_start	= 0x4b000000,
-		.pa_end		= 0x4b000000 + SZ_16M - 1,
-		.flags		= ADDR_TYPE_RT
-	},
-	{ }
-};
-
-static struct omap_hwmod_ocp_if am33xx_l3_main__debugss = {
-	.master		= &am33xx_l3_main_hwmod,
-	.slave		= &am33xx_debugss_hwmod,
-	.clk		= "dpll_core_m4_ck",
-	.addr		= am33xx_debugss_addrs,
-	.user		= OCP_USER_MPU,
-};
-
-/* l4 wkup -> smartreflex0 */
-static struct omap_hwmod_ocp_if am33xx_l4_wkup__smartreflex0 = {
-	.master		= &am33xx_l4_wkup_hwmod,
-	.slave		= &am33xx_smartreflex0_hwmod,
-	.clk		= "dpll_core_m4_div2_ck",
-	.user		= OCP_USER_MPU,
-};
-
-/* l4 wkup -> smartreflex1 */
-static struct omap_hwmod_ocp_if am33xx_l4_wkup__smartreflex1 = {
-	.master		= &am33xx_l4_wkup_hwmod,
-	.slave		= &am33xx_smartreflex1_hwmod,
-	.clk		= "dpll_core_m4_div2_ck",
-	.user		= OCP_USER_MPU,
-};
-
-/* l4 wkup -> control */
-static struct omap_hwmod_ocp_if am33xx_l4_wkup__control = {
-	.master		= &am33xx_l4_wkup_hwmod,
-	.slave		= &am33xx_control_hwmod,
-	.clk		= "dpll_core_m4_div2_ck",
-	.user		= OCP_USER_MPU,
-};
-
-/* l4 wkup -> rtc */
-static struct omap_hwmod_ocp_if am33xx_l4_wkup__rtc = {
-	.master		= &am33xx_l4_wkup_hwmod,
-	.slave		= &am33xx_rtc_hwmod,
-	.clk		= "clkdiv32k_ick",
-	.user		= OCP_USER_MPU,
-};
-
-/* l4 per/ls -> DCAN0 */
-static struct omap_hwmod_ocp_if am33xx_l4_per__dcan0 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_dcan0_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* l4 per/ls -> DCAN1 */
-static struct omap_hwmod_ocp_if am33xx_l4_per__dcan1 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_dcan1_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* l4 per/ls -> GPIO2 */
-static struct omap_hwmod_ocp_if am33xx_l4_per__gpio1 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_gpio1_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* l4 per/ls -> gpio3 */
-static struct omap_hwmod_ocp_if am33xx_l4_per__gpio2 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_gpio2_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* l4 per/ls -> gpio4 */
-static struct omap_hwmod_ocp_if am33xx_l4_per__gpio3 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_gpio3_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* L4 WKUP -> I2C1 */
-static struct omap_hwmod_ocp_if am33xx_l4_wkup__i2c1 = {
-	.master		= &am33xx_l4_wkup_hwmod,
-	.slave		= &am33xx_i2c1_hwmod,
-	.clk		= "dpll_core_m4_div2_ck",
-	.user		= OCP_USER_MPU,
-};
-
-/* L4 WKUP -> GPIO1 */
-static struct omap_hwmod_ocp_if am33xx_l4_wkup__gpio0 = {
-	.master		= &am33xx_l4_wkup_hwmod,
-	.slave		= &am33xx_gpio0_hwmod,
-	.clk		= "dpll_core_m4_div2_ck",
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* L4 WKUP -> ADC_TSC */
-static struct omap_hwmod_addr_space am33xx_adc_tsc_addrs[] = {
-	{
-		.pa_start	= 0x44E0D000,
-		.pa_end		= 0x44E0D000 + SZ_8K - 1,
-		.flags		= ADDR_TYPE_RT
-	},
-	{ }
-};
-
-static struct omap_hwmod_ocp_if am33xx_l4_wkup__adc_tsc = {
-	.master		= &am33xx_l4_wkup_hwmod,
-	.slave		= &am33xx_adc_tsc_hwmod,
-	.clk		= "dpll_core_m4_div2_ck",
-	.addr		= am33xx_adc_tsc_addrs,
-	.user		= OCP_USER_MPU,
-};
-
-static struct omap_hwmod_ocp_if am33xx_l4_hs__cpgmac0 = {
-	.master		= &am33xx_l4_hs_hwmod,
-	.slave		= &am33xx_cpgmac0_hwmod,
-	.clk		= "cpsw_125mhz_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-static struct omap_hwmod_ocp_if am33xx_cpgmac0__mdio = {
-	.master		= &am33xx_cpgmac0_hwmod,
-	.slave		= &am33xx_mdio_hwmod,
-	.user		= OCP_USER_MPU,
-};
-
-static struct omap_hwmod_addr_space am33xx_elm_addr_space[] = {
-	{
-		.pa_start	= 0x48080000,
-		.pa_end		= 0x48080000 + SZ_8K - 1,
-		.flags		= ADDR_TYPE_RT
-	},
-	{ }
-};
-
-static struct omap_hwmod_ocp_if am33xx_l4_ls__elm = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_elm_hwmod,
-	.clk		= "l4ls_gclk",
-	.addr		= am33xx_elm_addr_space,
-	.user		= OCP_USER_MPU,
-};
-
-static struct omap_hwmod_addr_space am33xx_epwmss0_addr_space[] = {
-	{
-		.pa_start	= 0x48300000,
-		.pa_end		= 0x48300000 + SZ_16 - 1,
-		.flags		= ADDR_TYPE_RT
-	},
-	{ }
-};
-
-static struct omap_hwmod_ocp_if am33xx_l4_ls__epwmss0 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_epwmss0_hwmod,
-	.clk		= "l4ls_gclk",
-	.addr		= am33xx_epwmss0_addr_space,
-	.user		= OCP_USER_MPU,
-};
-
-static struct omap_hwmod_ocp_if am33xx_epwmss0__ecap0 = {
-	.master		= &am33xx_epwmss0_hwmod,
-	.slave		= &am33xx_ecap0_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-static struct omap_hwmod_ocp_if am33xx_epwmss0__eqep0 = {
-	.master		= &am33xx_epwmss0_hwmod,
-	.slave		= &am33xx_eqep0_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-static struct omap_hwmod_ocp_if am33xx_epwmss0__ehrpwm0 = {
-	.master		= &am33xx_epwmss0_hwmod,
-	.slave		= &am33xx_ehrpwm0_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-
-static struct omap_hwmod_addr_space am33xx_epwmss1_addr_space[] = {
-	{
-		.pa_start	= 0x48302000,
-		.pa_end		= 0x48302000 + SZ_16 - 1,
-		.flags		= ADDR_TYPE_RT
-	},
-	{ }
-};
-
-static struct omap_hwmod_ocp_if am33xx_l4_ls__epwmss1 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_epwmss1_hwmod,
-	.clk		= "l4ls_gclk",
-	.addr		= am33xx_epwmss1_addr_space,
-	.user		= OCP_USER_MPU,
-};
-
-static struct omap_hwmod_ocp_if am33xx_epwmss1__ecap1 = {
-	.master		= &am33xx_epwmss1_hwmod,
-	.slave		= &am33xx_ecap1_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-static struct omap_hwmod_ocp_if am33xx_epwmss1__eqep1 = {
-	.master		= &am33xx_epwmss1_hwmod,
-	.slave		= &am33xx_eqep1_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-static struct omap_hwmod_ocp_if am33xx_epwmss1__ehrpwm1 = {
-	.master		= &am33xx_epwmss1_hwmod,
-	.slave		= &am33xx_ehrpwm1_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-static struct omap_hwmod_addr_space am33xx_epwmss2_addr_space[] = {
-	{
-		.pa_start	= 0x48304000,
-		.pa_end		= 0x48304000 + SZ_16 - 1,
-		.flags		= ADDR_TYPE_RT
-	},
-	{ }
-};
-
-static struct omap_hwmod_ocp_if am33xx_l4_ls__epwmss2 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_epwmss2_hwmod,
-	.clk		= "l4ls_gclk",
-	.addr		= am33xx_epwmss2_addr_space,
-	.user		= OCP_USER_MPU,
-};
-
-static struct omap_hwmod_ocp_if am33xx_epwmss2__ecap2 = {
-	.master		= &am33xx_epwmss2_hwmod,
-	.slave		= &am33xx_ecap2_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-static struct omap_hwmod_ocp_if am33xx_epwmss2__eqep2 = {
-	.master		= &am33xx_epwmss2_hwmod,
-	.slave		= &am33xx_eqep2_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-static struct omap_hwmod_ocp_if am33xx_epwmss2__ehrpwm2 = {
-	.master		= &am33xx_epwmss2_hwmod,
-	.slave		= &am33xx_ehrpwm2_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
+/*
+ * Interfaces
+ */
 
-/* l3s cfg -> gpmc */
-static struct omap_hwmod_addr_space am33xx_gpmc_addr_space[] = {
+static struct omap_hwmod_addr_space am33xx_emif_addrs[] = {
 	{
-		.pa_start	= 0x50000000,
-		.pa_end		= 0x50000000 + SZ_8K - 1,
-		.flags		= ADDR_TYPE_RT,
+		.pa_start	= 0x4c000000,
+		.pa_end		= 0x4c000fff,
+		.flags		= ADDR_TYPE_RT
 	},
 	{ }
 };
-
-static struct omap_hwmod_ocp_if am33xx_l3_s__gpmc = {
-	.master		= &am33xx_l3_s_hwmod,
-	.slave		= &am33xx_gpmc_hwmod,
-	.clk		= "l3s_gclk",
-	.addr		= am33xx_gpmc_addr_space,
-	.user		= OCP_USER_MPU,
+/* l3 main -> emif */
+static struct omap_hwmod_ocp_if am33xx_l3_main__emif = {
+	.master		= &am33xx_l3_main_hwmod,
+	.slave		= &am33xx_emif_hwmod,
+	.clk		= "dpll_core_m4_ck",
+	.addr		= am33xx_emif_addrs,
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
-/* i2c2 */
-static struct omap_hwmod_ocp_if am33xx_l4_per__i2c2 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_i2c2_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
+/* l3 main -> l4 hs */
+static struct omap_hwmod_ocp_if am33xx_l3_main__l4_hs = {
+	.master		= &am33xx_l3_main_hwmod,
+	.slave		= &am33xx_l4_hs_hwmod,
+	.clk		= "l3s_gclk",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
-static struct omap_hwmod_ocp_if am33xx_l4_per__i2c3 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_i2c3_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
+/* wkup m3 -> l4 wkup */
+static struct omap_hwmod_ocp_if am33xx_wkup_m3__l4_wkup = {
+	.master		= &am33xx_wkup_m3_hwmod,
+	.slave		= &am33xx_l4_wkup_hwmod,
+	.clk		= "dpll_core_m4_div2_ck",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
-static struct omap_hwmod_addr_space am33xx_lcdc_addr_space[] = {
-	{
-		.pa_start	= 0x4830E000,
-		.pa_end		= 0x4830E000 + SZ_8K - 1,
-		.flags		= ADDR_TYPE_RT,
-	},
-	{ }
+/* l4 wkup -> wkup m3 */
+static struct omap_hwmod_ocp_if am33xx_l4_wkup__wkup_m3 = {
+	.master		= &am33xx_l4_wkup_hwmod,
+	.slave		= &am33xx_wkup_m3_hwmod,
+	.clk		= "dpll_core_m4_div2_ck",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
-static struct omap_hwmod_ocp_if am33xx_l3_main__lcdc = {
-	.master		= &am33xx_l3_main_hwmod,
-	.slave		= &am33xx_lcdc_hwmod,
+/* l4 hs -> pru-icss */
+static struct omap_hwmod_ocp_if am33xx_l4_hs__pruss = {
+	.master		= &am33xx_l4_hs_hwmod,
+	.slave		= &am33xx_pruss_hwmod,
 	.clk		= "dpll_core_m4_ck",
-	.addr		= am33xx_lcdc_addr_space,
-	.user		= OCP_USER_MPU,
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
-static struct omap_hwmod_addr_space am33xx_mailbox_addrs[] = {
+/* l3_main -> debugss */
+static struct omap_hwmod_addr_space am33xx_debugss_addrs[] = {
 	{
-		.pa_start	= 0x480C8000,
-		.pa_end		= 0x480C8000 + (SZ_4K - 1),
+		.pa_start	= 0x4b000000,
+		.pa_end		= 0x4b000000 + SZ_16M - 1,
 		.flags		= ADDR_TYPE_RT
 	},
 	{ }
 };
 
-/* l4 ls -> mailbox */
-static struct omap_hwmod_ocp_if am33xx_l4_per__mailbox = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_mailbox_hwmod,
-	.clk		= "l4ls_gclk",
-	.addr		= am33xx_mailbox_addrs,
+static struct omap_hwmod_ocp_if am33xx_l3_main__debugss = {
+	.master		= &am33xx_l3_main_hwmod,
+	.slave		= &am33xx_debugss_hwmod,
+	.clk		= "dpll_core_m4_ck",
+	.addr		= am33xx_debugss_addrs,
 	.user		= OCP_USER_MPU,
 };
 
-/* l4 ls -> spinlock */
-static struct omap_hwmod_ocp_if am33xx_l4_ls__spinlock = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_spinlock_hwmod,
-	.clk		= "l4ls_gclk",
+/* l4 wkup -> smartreflex0 */
+static struct omap_hwmod_ocp_if am33xx_l4_wkup__smartreflex0 = {
+	.master		= &am33xx_l4_wkup_hwmod,
+	.slave		= &am33xx_smartreflex0_hwmod,
+	.clk		= "dpll_core_m4_div2_ck",
 	.user		= OCP_USER_MPU,
 };
 
-/* l4 ls -> mcasp0 */
-static struct omap_hwmod_addr_space am33xx_mcasp0_addr_space[] = {
-	{
-		.pa_start	= 0x48038000,
-		.pa_end		= 0x48038000 + SZ_8K - 1,
-		.flags		= ADDR_TYPE_RT
-	},
-	{ }
-};
-
-static struct omap_hwmod_ocp_if am33xx_l4_ls__mcasp0 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_mcasp0_hwmod,
-	.clk		= "l4ls_gclk",
-	.addr		= am33xx_mcasp0_addr_space,
+/* l4 wkup -> smartreflex1 */
+static struct omap_hwmod_ocp_if am33xx_l4_wkup__smartreflex1 = {
+	.master		= &am33xx_l4_wkup_hwmod,
+	.slave		= &am33xx_smartreflex1_hwmod,
+	.clk		= "dpll_core_m4_div2_ck",
 	.user		= OCP_USER_MPU,
 };
 
-/* l4 ls -> mcasp1 */
-static struct omap_hwmod_addr_space am33xx_mcasp1_addr_space[] = {
-	{
-		.pa_start	= 0x4803C000,
-		.pa_end		= 0x4803C000 + SZ_8K - 1,
-		.flags		= ADDR_TYPE_RT
-	},
-	{ }
-};
-
-static struct omap_hwmod_ocp_if am33xx_l4_ls__mcasp1 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_mcasp1_hwmod,
-	.clk		= "l4ls_gclk",
-	.addr		= am33xx_mcasp1_addr_space,
+/* l4 wkup -> control */
+static struct omap_hwmod_ocp_if am33xx_l4_wkup__control = {
+	.master		= &am33xx_l4_wkup_hwmod,
+	.slave		= &am33xx_control_hwmod,
+	.clk		= "dpll_core_m4_div2_ck",
 	.user		= OCP_USER_MPU,
 };
 
-/* l4 ls -> mmc0 */
-static struct omap_hwmod_addr_space am33xx_mmc0_addr_space[] = {
-	{
-		.pa_start	= 0x48060100,
-		.pa_end		= 0x48060100 + SZ_4K - 1,
-		.flags		= ADDR_TYPE_RT,
-	},
-	{ }
-};
-
-static struct omap_hwmod_ocp_if am33xx_l4_ls__mmc0 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_mmc0_hwmod,
-	.clk		= "l4ls_gclk",
-	.addr		= am33xx_mmc0_addr_space,
+/* L4 WKUP -> I2C1 */
+static struct omap_hwmod_ocp_if am33xx_l4_wkup__i2c1 = {
+	.master		= &am33xx_l4_wkup_hwmod,
+	.slave		= &am33xx_i2c1_hwmod,
+	.clk		= "dpll_core_m4_div2_ck",
 	.user		= OCP_USER_MPU,
 };
 
-/* l4 ls -> mmc1 */
-static struct omap_hwmod_addr_space am33xx_mmc1_addr_space[] = {
-	{
-		.pa_start	= 0x481d8100,
-		.pa_end		= 0x481d8100 + SZ_4K - 1,
-		.flags		= ADDR_TYPE_RT,
-	},
-	{ }
-};
-
-static struct omap_hwmod_ocp_if am33xx_l4_ls__mmc1 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_mmc1_hwmod,
-	.clk		= "l4ls_gclk",
-	.addr		= am33xx_mmc1_addr_space,
-	.user		= OCP_USER_MPU,
+/* L4 WKUP -> GPIO1 */
+static struct omap_hwmod_ocp_if am33xx_l4_wkup__gpio0 = {
+	.master		= &am33xx_l4_wkup_hwmod,
+	.slave		= &am33xx_gpio0_hwmod,
+	.clk		= "dpll_core_m4_div2_ck",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
-/* l3 s -> mmc2 */
-static struct omap_hwmod_addr_space am33xx_mmc2_addr_space[] = {
+/* L4 WKUP -> ADC_TSC */
+static struct omap_hwmod_addr_space am33xx_adc_tsc_addrs[] = {
 	{
-		.pa_start	= 0x47810100,
-		.pa_end		= 0x47810100 + SZ_64K - 1,
-		.flags		= ADDR_TYPE_RT,
+		.pa_start	= 0x44E0D000,
+		.pa_end		= 0x44E0D000 + SZ_8K - 1,
+		.flags		= ADDR_TYPE_RT
 	},
 	{ }
 };
 
-static struct omap_hwmod_ocp_if am33xx_l3_s__mmc2 = {
-	.master		= &am33xx_l3_s_hwmod,
-	.slave		= &am33xx_mmc2_hwmod,
-	.clk		= "l3s_gclk",
-	.addr		= am33xx_mmc2_addr_space,
-	.user		= OCP_USER_MPU,
-};
-
-/* l4 ls -> mcspi0 */
-static struct omap_hwmod_ocp_if am33xx_l4_ls__mcspi0 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_spi0_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-/* l4 ls -> mcspi1 */
-static struct omap_hwmod_ocp_if am33xx_l4_ls__mcspi1 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_spi1_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-/* l4 wkup -> timer1 */
-static struct omap_hwmod_ocp_if am33xx_l4_wkup__timer1 = {
+static struct omap_hwmod_ocp_if am33xx_l4_wkup__adc_tsc = {
 	.master		= &am33xx_l4_wkup_hwmod,
-	.slave		= &am33xx_timer1_hwmod,
+	.slave		= &am33xx_adc_tsc_hwmod,
 	.clk		= "dpll_core_m4_div2_ck",
+	.addr		= am33xx_adc_tsc_addrs,
 	.user		= OCP_USER_MPU,
 };
 
-/* l4 per -> timer2 */
-static struct omap_hwmod_ocp_if am33xx_l4_ls__timer2 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_timer2_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-/* l4 per -> timer3 */
-static struct omap_hwmod_ocp_if am33xx_l4_ls__timer3 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_timer3_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-/* l4 per -> timer4 */
-static struct omap_hwmod_ocp_if am33xx_l4_ls__timer4 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_timer4_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-/* l4 per -> timer5 */
-static struct omap_hwmod_ocp_if am33xx_l4_ls__timer5 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_timer5_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-/* l4 per -> timer6 */
-static struct omap_hwmod_ocp_if am33xx_l4_ls__timer6 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_timer6_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-/* l4 per -> timer7 */
-static struct omap_hwmod_ocp_if am33xx_l4_ls__timer7 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_timer7_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-/* l3 main -> tpcc */
-static struct omap_hwmod_ocp_if am33xx_l3_main__tpcc = {
-	.master		= &am33xx_l3_main_hwmod,
-	.slave		= &am33xx_tpcc_hwmod,
-	.clk		= "l3_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-/* l3 main -> tpcc0 */
-static struct omap_hwmod_addr_space am33xx_tptc0_addr_space[] = {
-	{
-		.pa_start	= 0x49800000,
-		.pa_end		= 0x49800000 + SZ_8K - 1,
-		.flags		= ADDR_TYPE_RT,
-	},
-	{ }
-};
-
-static struct omap_hwmod_ocp_if am33xx_l3_main__tptc0 = {
-	.master		= &am33xx_l3_main_hwmod,
-	.slave		= &am33xx_tptc0_hwmod,
-	.clk		= "l3_gclk",
-	.addr		= am33xx_tptc0_addr_space,
+static struct omap_hwmod_ocp_if am33xx_l4_hs__cpgmac0 = {
+	.master		= &am33xx_l4_hs_hwmod,
+	.slave		= &am33xx_cpgmac0_hwmod,
+	.clk		= "cpsw_125mhz_gclk",
 	.user		= OCP_USER_MPU,
 };
 
-/* l3 main -> tpcc1 */
-static struct omap_hwmod_addr_space am33xx_tptc1_addr_space[] = {
+static struct omap_hwmod_addr_space am33xx_lcdc_addr_space[] = {
 	{
-		.pa_start	= 0x49900000,
-		.pa_end		= 0x49900000 + SZ_8K - 1,
+		.pa_start	= 0x4830E000,
+		.pa_end		= 0x4830E000 + SZ_8K - 1,
 		.flags		= ADDR_TYPE_RT,
 	},
 	{ }
 };
 
-static struct omap_hwmod_ocp_if am33xx_l3_main__tptc1 = {
+static struct omap_hwmod_ocp_if am33xx_l3_main__lcdc = {
 	.master		= &am33xx_l3_main_hwmod,
-	.slave		= &am33xx_tptc1_hwmod,
-	.clk		= "l3_gclk",
-	.addr		= am33xx_tptc1_addr_space,
+	.slave		= &am33xx_lcdc_hwmod,
+	.clk		= "dpll_core_m4_ck",
+	.addr		= am33xx_lcdc_addr_space,
 	.user		= OCP_USER_MPU,
 };
 
-/* l3 main -> tpcc2 */
-static struct omap_hwmod_addr_space am33xx_tptc2_addr_space[] = {
-	{
-		.pa_start	= 0x49a00000,
-		.pa_end		= 0x49a00000 + SZ_8K - 1,
-		.flags		= ADDR_TYPE_RT,
-	},
-	{ }
-};
-
-static struct omap_hwmod_ocp_if am33xx_l3_main__tptc2 = {
-	.master		= &am33xx_l3_main_hwmod,
-	.slave		= &am33xx_tptc2_hwmod,
-	.clk		= "l3_gclk",
-	.addr		= am33xx_tptc2_addr_space,
+/* l4 wkup -> timer1 */
+static struct omap_hwmod_ocp_if am33xx_l4_wkup__timer1 = {
+	.master		= &am33xx_l4_wkup_hwmod,
+	.slave		= &am33xx_timer1_hwmod,
+	.clk		= "dpll_core_m4_div2_ck",
 	.user		= OCP_USER_MPU,
 };
 
@@ -2392,46 +499,6 @@ static struct omap_hwmod_ocp_if am33xx_l4_wkup__uart1 = {
 	.user		= OCP_USER_MPU,
 };
 
-/* l4 ls -> uart2 */
-static struct omap_hwmod_ocp_if am33xx_l4_ls__uart2 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_uart2_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-/* l4 ls -> uart3 */
-static struct omap_hwmod_ocp_if am33xx_l4_ls__uart3 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_uart3_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-/* l4 ls -> uart4 */
-static struct omap_hwmod_ocp_if am33xx_l4_ls__uart4 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_uart4_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-/* l4 ls -> uart5 */
-static struct omap_hwmod_ocp_if am33xx_l4_ls__uart5 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_uart5_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
-/* l4 ls -> uart6 */
-static struct omap_hwmod_ocp_if am33xx_l4_ls__uart6 = {
-	.master		= &am33xx_l4_ls_hwmod,
-	.slave		= &am33xx_uart6_hwmod,
-	.clk		= "l4ls_gclk",
-	.user		= OCP_USER_MPU,
-};
-
 /* l4 wkup -> wd_timer1 */
 static struct omap_hwmod_ocp_if am33xx_l4_wkup__wd_timer1 = {
 	.master		= &am33xx_l4_wkup_hwmod,
@@ -2450,49 +517,6 @@ static struct omap_hwmod_ocp_if am33xx_l3_s__usbss = {
 	.flags		= OCPIF_SWSUP_IDLE,
 };
 
-/* l3 main -> ocmc */
-static struct omap_hwmod_ocp_if am33xx_l3_main__ocmc = {
-	.master		= &am33xx_l3_main_hwmod,
-	.slave		= &am33xx_ocmcram_hwmod,
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* l3 main -> sha0 HIB2 */
-static struct omap_hwmod_addr_space am33xx_sha0_addrs[] = {
-	{
-		.pa_start	= 0x53100000,
-		.pa_end		= 0x53100000 + SZ_512 - 1,
-		.flags		= ADDR_TYPE_RT
-	},
-	{ }
-};
-
-static struct omap_hwmod_ocp_if am33xx_l3_main__sha0 = {
-	.master		= &am33xx_l3_main_hwmod,
-	.slave		= &am33xx_sha0_hwmod,
-	.clk		= "sha0_fck",
-	.addr		= am33xx_sha0_addrs,
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
-/* l3 main -> AES0 HIB2 */
-static struct omap_hwmod_addr_space am33xx_aes0_addrs[] = {
-	{
-		.pa_start	= 0x53500000,
-		.pa_end		= 0x53500000 + SZ_1M - 1,
-		.flags		= ADDR_TYPE_RT
-	},
-	{ }
-};
-
-static struct omap_hwmod_ocp_if am33xx_l3_main__aes0 = {
-	.master		= &am33xx_l3_main_hwmod,
-	.slave		= &am33xx_aes0_hwmod,
-	.clk		= "aes0_fck",
-	.addr		= am33xx_aes0_addrs,
-	.user		= OCP_USER_MPU | OCP_USER_SDMA,
-};
-
 /* rng */
 static struct omap_hwmod_class_sysconfig am33xx_rng_sysc = {
 	.rev_offs	= 0x1fe0,
-- 
cgit 


From 1c7e224dffd69491a9dcb59b36731061fec1482e Mon Sep 17 00:00:00 2001
From: Afzal Mohammed <afzal@ti.com>
Date: Sat, 12 Oct 2013 15:45:26 +0530
Subject: ARM: OMAP2+: hwmod: AM335x: runtime register update

Most of IP's in AM335x is present on AM43x and so in those cases both
will use same hwmod database (except for a few cases where clock related
details differ), but there is difference w.r.t register offset between
these. Update register offsets at runtime based on the SoC detected to
help in sharing otherwise same hwmod.

Signed-off-by: Afzal Mohammed <afzal@ti.com>
Acked-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 .../mach-omap2/omap_hwmod_33xx_43xx_common_data.h  |  2 +
 .../mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c | 77 ++++++++++++++++++++++
 arch/arm/mach-omap2/omap_hwmod_33xx_data.c         |  1 +
 3 files changed, 80 insertions(+)

diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h
index e873e7268935..a9a790297f68 100644
--- a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h
@@ -157,4 +157,6 @@ extern struct omap_hwmod_class am33xx_spi_hwmod_class;
 extern struct omap_gpio_dev_attr gpio_dev_attr;
 extern struct omap2_mcspi_dev_attr mcspi_attrib;
 
+void omap_hwmod_am33xx_reg(void);
+
 #endif
diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
index 669b7bd1b0bc..e66d02a773d3 100644
--- a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
@@ -24,6 +24,10 @@
 #include "prm33xx.h"
 #include "omap_hwmod_33xx_43xx_common_data.h"
 
+#define CLKCTRL(oh, clkctrl) ((oh).prcm.omap4.clkctrl_offs = (clkctrl))
+#define RSTCTRL(oh, rstctrl) ((oh).prcm.omap4.rstctrl_offs = (rstctrl))
+#define RSTST(oh, rstst) ((oh).prcm.omap4.rstst_offs = (rstst))
+
 /*
  * 'l3' class
  * instance(s): l3_main, l3_s, l3_instr
@@ -1373,3 +1377,76 @@ struct omap_hwmod am33xx_wd_timer1_hwmod = {
 		},
 	},
 };
+
+static void omap_hwmod_am33xx_clkctrl(void)
+{
+	CLKCTRL(am33xx_uart2_hwmod, AM33XX_CM_PER_UART1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_uart3_hwmod, AM33XX_CM_PER_UART2_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_uart4_hwmod, AM33XX_CM_PER_UART3_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_uart5_hwmod, AM33XX_CM_PER_UART4_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_uart6_hwmod, AM33XX_CM_PER_UART5_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_dcan0_hwmod, AM33XX_CM_PER_DCAN0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_dcan1_hwmod, AM33XX_CM_PER_DCAN1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_elm_hwmod, AM33XX_CM_PER_ELM_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_epwmss0_hwmod, AM33XX_CM_PER_EPWMSS0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_epwmss1_hwmod, AM33XX_CM_PER_EPWMSS1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_epwmss2_hwmod, AM33XX_CM_PER_EPWMSS2_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_gpio1_hwmod, AM33XX_CM_PER_GPIO1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_gpio2_hwmod, AM33XX_CM_PER_GPIO2_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_gpio3_hwmod, AM33XX_CM_PER_GPIO3_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_i2c2_hwmod, AM33XX_CM_PER_I2C1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_i2c3_hwmod, AM33XX_CM_PER_I2C2_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_mailbox_hwmod, AM33XX_CM_PER_MAILBOX0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_mcasp0_hwmod, AM33XX_CM_PER_MCASP0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_mcasp1_hwmod, AM33XX_CM_PER_MCASP1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_mmc0_hwmod, AM33XX_CM_PER_MMC0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_mmc1_hwmod, AM33XX_CM_PER_MMC1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_spi0_hwmod, AM33XX_CM_PER_SPI0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_spi1_hwmod, AM33XX_CM_PER_SPI1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_spinlock_hwmod, AM33XX_CM_PER_SPINLOCK_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_timer2_hwmod, AM33XX_CM_PER_TIMER2_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_timer3_hwmod, AM33XX_CM_PER_TIMER3_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_timer4_hwmod, AM33XX_CM_PER_TIMER4_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_timer5_hwmod, AM33XX_CM_PER_TIMER5_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_timer6_hwmod, AM33XX_CM_PER_TIMER6_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_timer7_hwmod, AM33XX_CM_PER_TIMER7_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_smartreflex0_hwmod,
+		AM33XX_CM_WKUP_SMARTREFLEX0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_smartreflex1_hwmod,
+		AM33XX_CM_WKUP_SMARTREFLEX1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_uart1_hwmod, AM33XX_CM_WKUP_UART0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_timer1_hwmod, AM33XX_CM_WKUP_TIMER1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_i2c1_hwmod, AM33XX_CM_WKUP_I2C0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_wd_timer1_hwmod, AM33XX_CM_WKUP_WDT1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_rtc_hwmod, AM33XX_CM_RTC_RTC_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_mmc2_hwmod, AM33XX_CM_PER_MMC2_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_gpmc_hwmod, AM33XX_CM_PER_GPMC_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_l4_ls_hwmod, AM33XX_CM_PER_L4LS_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_l4_wkup_hwmod, AM33XX_CM_WKUP_L4WKUP_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_l3_main_hwmod, AM33XX_CM_PER_L3_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_tpcc_hwmod, AM33XX_CM_PER_TPCC_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_tptc0_hwmod, AM33XX_CM_PER_TPTC0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_tptc1_hwmod, AM33XX_CM_PER_TPTC1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_tptc2_hwmod, AM33XX_CM_PER_TPTC2_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_gfx_hwmod, AM33XX_CM_GFX_GFX_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_cpgmac0_hwmod, AM33XX_CM_PER_CPGMAC0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_pruss_hwmod, AM33XX_CM_PER_PRUSS_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_mpu_hwmod , AM33XX_CM_MPU_MPU_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_l3_instr_hwmod , AM33XX_CM_PER_L3_INSTR_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_ocmcram_hwmod , AM33XX_CM_PER_OCMCRAM_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_sha0_hwmod , AM33XX_CM_PER_SHA0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_aes0_hwmod , AM33XX_CM_PER_AES0_CLKCTRL_OFFSET);
+}
+
+static void omap_hwmod_am33xx_rst(void)
+{
+	RSTCTRL(am33xx_pruss_hwmod, AM33XX_RM_PER_RSTCTRL_OFFSET);
+	RSTCTRL(am33xx_gfx_hwmod, AM33XX_RM_GFX_RSTCTRL_OFFSET);
+	RSTST(am33xx_gfx_hwmod, AM33XX_RM_GFX_RSTST_OFFSET);
+}
+
+void omap_hwmod_am33xx_reg(void)
+{
+	omap_hwmod_am33xx_clkctrl();
+	omap_hwmod_am33xx_rst();
+}
diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
index 1b76fc7a911d..6b406ca4bd3b 100644
--- a/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_data.c
@@ -637,6 +637,7 @@ static struct omap_hwmod_ocp_if *am33xx_hwmod_ocp_ifs[] __initdata = {
 
 int __init am33xx_hwmod_init(void)
 {
+	omap_hwmod_am33xx_reg();
 	omap_hwmod_init();
 	return omap_hwmod_register_links(am33xx_hwmod_ocp_ifs);
 }
-- 
cgit 


From 205e39b5a03350207d8bea47d2a248e20c34fffe Mon Sep 17 00:00:00 2001
From: Afzal Mohammed <afzal@ti.com>
Date: Sat, 12 Oct 2013 15:45:36 +0530
Subject: ARM: OMAP2+: hwmod: AM335x: remove static register offs

Hwmod common to AM43x and AM335x has register offsets different. It is
now updated based on SoC detection at run time, hence remove statically
initialized ones.

Signed-off-by: Afzal Mohammed <afzal@ti.com>
Acked-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 .../mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c | 57 ----------------------
 1 file changed, 57 deletions(-)

diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
index e66d02a773d3..ffb371ff42dc 100644
--- a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
@@ -44,7 +44,6 @@ struct omap_hwmod am33xx_l3_main_hwmod = {
 	.main_clk	= "l3_gclk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_L3_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -66,7 +65,6 @@ struct omap_hwmod am33xx_l3_instr_hwmod = {
 	.main_clk	= "l3_gclk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_L3_INSTR_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -89,7 +87,6 @@ struct omap_hwmod am33xx_l4_ls_hwmod = {
 	.main_clk	= "l4ls_gclk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_L4LS_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -103,7 +100,6 @@ struct omap_hwmod am33xx_l4_wkup_hwmod = {
 	.flags		= HWMOD_INIT_NO_IDLE,
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_WKUP_L4WKUP_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -124,7 +120,6 @@ struct omap_hwmod am33xx_mpu_hwmod = {
 	.main_clk	= "dpll_mpu_m2_ck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_MPU_MPU_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -159,8 +154,6 @@ struct omap_hwmod am33xx_pruss_hwmod = {
 	.main_clk	= "pruss_ocp_gclk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_PRUSS_CLKCTRL_OFFSET,
-			.rstctrl_offs	= AM33XX_RM_PER_RSTCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -185,9 +178,6 @@ struct omap_hwmod am33xx_gfx_hwmod = {
 	.main_clk	= "gfx_fck_div_ck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_GFX_GFX_CLKCTRL_OFFSET,
-			.rstctrl_offs	= AM33XX_RM_GFX_RSTCTRL_OFFSET,
-			.rstst_offs	= AM33XX_RM_GFX_RSTST_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -232,7 +222,6 @@ struct omap_hwmod am33xx_aes0_hwmod = {
 	.main_clk	= "aes0_fck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_AES0_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -258,7 +247,6 @@ struct omap_hwmod am33xx_sha0_hwmod = {
 	.main_clk	= "l3_gclk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_SHA0_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -277,7 +265,6 @@ struct omap_hwmod am33xx_ocmcram_hwmod = {
 	.main_clk	= "l3_gclk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_OCMCRAM_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -296,7 +283,6 @@ struct omap_hwmod am33xx_smartreflex0_hwmod = {
 	.main_clk	= "smartreflex0_fck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_WKUP_SMARTREFLEX0_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -310,7 +296,6 @@ struct omap_hwmod am33xx_smartreflex1_hwmod = {
 	.main_clk	= "smartreflex1_fck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_WKUP_SMARTREFLEX1_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -352,7 +337,6 @@ struct omap_hwmod am33xx_cpgmac0_hwmod = {
 	.mpu_rt_idx	= 1,
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_CPGMAC0_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -387,7 +371,6 @@ struct omap_hwmod am33xx_dcan0_hwmod = {
 	.main_clk	= "dcan0_fck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_DCAN0_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -401,7 +384,6 @@ struct omap_hwmod am33xx_dcan1_hwmod = {
 	.main_clk	= "dcan1_fck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_DCAN1_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -431,7 +413,6 @@ struct omap_hwmod am33xx_elm_hwmod = {
 	.main_clk	= "l4ls_gclk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_ELM_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -473,7 +454,6 @@ struct omap_hwmod am33xx_epwmss0_hwmod = {
 	.main_clk	= "l4ls_gclk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_EPWMSS0_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -511,7 +491,6 @@ struct omap_hwmod am33xx_epwmss1_hwmod = {
 	.main_clk	= "l4ls_gclk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_EPWMSS1_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -549,7 +528,6 @@ struct omap_hwmod am33xx_epwmss2_hwmod = {
 	.main_clk	= "l4ls_gclk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_EPWMSS2_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -618,7 +596,6 @@ struct omap_hwmod am33xx_gpio1_hwmod = {
 	.main_clk	= "l4ls_gclk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_GPIO1_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -640,7 +617,6 @@ struct omap_hwmod am33xx_gpio2_hwmod = {
 	.main_clk	= "l4ls_gclk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_GPIO2_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -662,7 +638,6 @@ struct omap_hwmod am33xx_gpio3_hwmod = {
 	.main_clk	= "l4ls_gclk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_GPIO3_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -695,7 +670,6 @@ struct omap_hwmod am33xx_gpmc_hwmod = {
 	.main_clk	= "l3s_gclk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_GPMC_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -733,7 +707,6 @@ struct omap_hwmod am33xx_i2c1_hwmod = {
 	.main_clk	= "dpll_per_m2_div4_wkupdm_ck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_WKUP_I2C0_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -749,7 +722,6 @@ struct omap_hwmod am33xx_i2c2_hwmod = {
 	.main_clk	= "dpll_per_m2_div4_ck",
 	.prcm		= {
 		.omap4 = {
-			.clkctrl_offs	= AM33XX_CM_PER_I2C1_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -765,7 +737,6 @@ struct omap_hwmod am33xx_i2c3_hwmod = {
 	.main_clk	= "dpll_per_m2_div4_ck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_I2C2_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -798,7 +769,6 @@ struct omap_hwmod am33xx_mailbox_hwmod = {
 	.main_clk	= "l4ls_gclk",
 	.prcm = {
 		.omap4 = {
-			.clkctrl_offs	= AM33XX_CM_PER_MAILBOX0_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -828,7 +798,6 @@ struct omap_hwmod am33xx_mcasp0_hwmod = {
 	.main_clk	= "mcasp0_fck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_MCASP0_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -842,7 +811,6 @@ struct omap_hwmod am33xx_mcasp1_hwmod = {
 	.main_clk	= "mcasp1_fck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_MCASP1_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -877,7 +845,6 @@ struct omap_hwmod am33xx_mmc0_hwmod = {
 	.main_clk	= "mmc_clk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_MMC0_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -896,7 +863,6 @@ struct omap_hwmod am33xx_mmc1_hwmod = {
 	.main_clk	= "mmc_clk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_MMC1_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -914,7 +880,6 @@ struct omap_hwmod am33xx_mmc2_hwmod = {
 	.main_clk	= "mmc_clk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_MMC2_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -946,7 +911,6 @@ struct omap_hwmod am33xx_rtc_hwmod = {
 	.main_clk	= "clk_32768_ck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_RTC_RTC_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -981,7 +945,6 @@ struct omap_hwmod am33xx_spi0_hwmod = {
 	.main_clk	= "dpll_per_m2_div4_ck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_SPI0_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -996,7 +959,6 @@ struct omap_hwmod am33xx_spi1_hwmod = {
 	.main_clk	= "dpll_per_m2_div4_ck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_SPI1_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -1032,7 +994,6 @@ struct omap_hwmod am33xx_spinlock_hwmod = {
 	.main_clk	= "l4ls_gclk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_SPINLOCK_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -1078,7 +1039,6 @@ struct omap_hwmod am33xx_timer1_hwmod = {
 	.main_clk	= "timer1_fck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_WKUP_TIMER1_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -1091,7 +1051,6 @@ struct omap_hwmod am33xx_timer2_hwmod = {
 	.main_clk	= "timer2_fck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_TIMER2_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -1104,7 +1063,6 @@ struct omap_hwmod am33xx_timer3_hwmod = {
 	.main_clk	= "timer3_fck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_TIMER3_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -1117,7 +1075,6 @@ struct omap_hwmod am33xx_timer4_hwmod = {
 	.main_clk	= "timer4_fck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_TIMER4_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -1130,7 +1087,6 @@ struct omap_hwmod am33xx_timer5_hwmod = {
 	.main_clk	= "timer5_fck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_TIMER5_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -1143,7 +1099,6 @@ struct omap_hwmod am33xx_timer6_hwmod = {
 	.main_clk	= "timer6_fck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_TIMER6_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -1156,7 +1111,6 @@ struct omap_hwmod am33xx_timer7_hwmod = {
 	.main_clk	= "timer7_fck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_TIMER7_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -1174,7 +1128,6 @@ struct omap_hwmod am33xx_tpcc_hwmod = {
 	.main_clk	= "l3_gclk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_TPCC_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -1204,7 +1157,6 @@ struct omap_hwmod am33xx_tptc0_hwmod = {
 	.main_clk	= "l3_gclk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_TPTC0_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -1219,7 +1171,6 @@ struct omap_hwmod am33xx_tptc1_hwmod = {
 	.main_clk	= "l3_gclk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_TPTC1_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -1234,7 +1185,6 @@ struct omap_hwmod am33xx_tptc2_hwmod = {
 	.main_clk	= "l3_gclk",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_TPTC2_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -1265,7 +1215,6 @@ struct omap_hwmod am33xx_uart1_hwmod = {
 	.main_clk	= "dpll_per_m2_div4_wkupdm_ck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_WKUP_UART0_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -1279,7 +1228,6 @@ struct omap_hwmod am33xx_uart2_hwmod = {
 	.main_clk	= "dpll_per_m2_div4_ck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_UART1_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -1294,7 +1242,6 @@ struct omap_hwmod am33xx_uart3_hwmod = {
 	.main_clk	= "dpll_per_m2_div4_ck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_UART2_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -1308,7 +1255,6 @@ struct omap_hwmod am33xx_uart4_hwmod = {
 	.main_clk	= "dpll_per_m2_div4_ck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_UART3_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -1322,7 +1268,6 @@ struct omap_hwmod am33xx_uart5_hwmod = {
 	.main_clk	= "dpll_per_m2_div4_ck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_UART4_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -1336,7 +1281,6 @@ struct omap_hwmod am33xx_uart6_hwmod = {
 	.main_clk	= "dpll_per_m2_div4_ck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_PER_UART5_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
@@ -1372,7 +1316,6 @@ struct omap_hwmod am33xx_wd_timer1_hwmod = {
 	.main_clk	= "wdt1_fck",
 	.prcm		= {
 		.omap4	= {
-			.clkctrl_offs	= AM33XX_CM_WKUP_WDT1_CLKCTRL_OFFSET,
 			.modulemode	= MODULEMODE_SWCTRL,
 		},
 	},
-- 
cgit 


From 37fbc27e2cc21cf2547ad752a220925904c85894 Mon Sep 17 00:00:00 2001
From: Afzal Mohammed <afzal@ti.com>
Date: Sat, 12 Oct 2013 15:45:45 +0530
Subject: ARM: OMAP2+: PRCM: AM43x definitions

Add AM43x CMINST, CDOFFS, RM_RSTST & RM_RSTCTRL definitions - minimal
ones that would be used.

Signed-off-by: Afzal Mohammed <afzal@ti.com>
Acked-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/prcm43xx.h | 141 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 141 insertions(+)
 create mode 100644 arch/arm/mach-omap2/prcm43xx.h

diff --git a/arch/arm/mach-omap2/prcm43xx.h b/arch/arm/mach-omap2/prcm43xx.h
new file mode 100644
index 000000000000..f0636eca7a6e
--- /dev/null
+++ b/arch/arm/mach-omap2/prcm43xx.h
@@ -0,0 +1,141 @@
+/*
+ * AM43x PRCM defines
+ *
+ * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#ifndef __ARCH_ARM_MACH_OMAP2_PRCM_43XX_H
+#define __ARCH_ARM_MACH_OMAP2_PRCM_43XX_H
+
+#define AM43XX_PRM_PARTITION				1
+#define AM43XX_CM_PARTITION				1
+
+/* PRM instances */
+#define AM43XX_PRM_OCP_SOCKET_INST			0x0000
+#define AM43XX_PRM_MPU_INST				0x0300
+#define AM43XX_PRM_GFX_INST				0x0400
+#define AM43XX_PRM_RTC_INST				0x0500
+#define AM43XX_PRM_TAMPER_INST				0x0600
+#define AM43XX_PRM_CEFUSE_INST				0x0700
+#define AM43XX_PRM_PER_INST				0x0800
+#define AM43XX_PRM_WKUP_INST				0x2000
+#define AM43XX_PRM_DEVICE_INST				0x4000
+
+/* RM RSTCTRL offsets */
+#define AM43XX_RM_PER_RSTCTRL_OFFSET			0x0010
+#define AM43XX_RM_GFX_RSTCTRL_OFFSET			0x0010
+#define AM43XX_RM_WKUP_RSTCTRL_OFFSET			0x0010
+
+/* RM RSTST offsets */
+#define AM43XX_RM_GFX_RSTST_OFFSET			0x0014
+#define AM43XX_RM_WKUP_RSTST_OFFSET			0x0014
+
+/* CM instances */
+#define AM43XX_CM_WKUP_INST				0x2800
+#define AM43XX_CM_DEVICE_INST				0x4100
+#define AM43XX_CM_DPLL_INST				0x4200
+#define AM43XX_CM_MPU_INST				0x8300
+#define AM43XX_CM_GFX_INST				0x8400
+#define AM43XX_CM_RTC_INST				0x8500
+#define AM43XX_CM_TAMPER_INST				0x8600
+#define AM43XX_CM_CEFUSE_INST				0x8700
+#define AM43XX_CM_PER_INST				0x8800
+
+/* CD offsets */
+#define AM43XX_CM_WKUP_L3_AON_CDOFFS			0x0000
+#define AM43XX_CM_WKUP_L3S_TSC_CDOFFS			0x0100
+#define AM43XX_CM_WKUP_L4_WKUP_AON_CDOFFS		0x0200
+#define AM43XX_CM_WKUP_WKUP_CDOFFS			0x0300
+#define AM43XX_CM_MPU_MPU_CDOFFS			0x0000
+#define AM43XX_CM_GFX_GFX_L3_CDOFFS			0x0000
+#define AM43XX_CM_RTC_RTC_CDOFFS			0x0000
+#define AM43XX_CM_TAMPER_TAMPER_CDOFFS			0x0000
+#define AM43XX_CM_CEFUSE_CEFUSE_CDOFFS			0x0000
+#define AM43XX_CM_PER_L3_CDOFFS				0x0000
+#define AM43XX_CM_PER_L3S_CDOFFS			0x0200
+#define AM43XX_CM_PER_ICSS_CDOFFS			0x0300
+#define AM43XX_CM_PER_L4LS_CDOFFS			0x0400
+#define AM43XX_CM_PER_EMIF_CDOFFS			0x0700
+#define AM43XX_CM_PER_DSS_CDOFFS			0x0a00
+#define AM43XX_CM_PER_CPSW_CDOFFS			0x0b00
+#define AM43XX_CM_PER_OCPWP_L3_CDOFFS			0x0c00
+
+/* CLK CTRL offsets */
+#define AM43XX_CM_PER_UART1_CLKCTRL_OFFSET		0x0580
+#define AM43XX_CM_PER_UART2_CLKCTRL_OFFSET		0x0588
+#define AM43XX_CM_PER_UART3_CLKCTRL_OFFSET		0x0590
+#define AM43XX_CM_PER_UART4_CLKCTRL_OFFSET		0x0598
+#define AM43XX_CM_PER_UART5_CLKCTRL_OFFSET		0x05a0
+#define AM43XX_CM_PER_DCAN0_CLKCTRL_OFFSET		0x0428
+#define AM43XX_CM_PER_DCAN1_CLKCTRL_OFFSET		0x0430
+#define AM43XX_CM_PER_ELM_CLKCTRL_OFFSET		0x0468
+#define AM43XX_CM_PER_EPWMSS0_CLKCTRL_OFFSET		0x0438
+#define AM43XX_CM_PER_EPWMSS1_CLKCTRL_OFFSET		0x0440
+#define AM43XX_CM_PER_EPWMSS2_CLKCTRL_OFFSET		0x0448
+#define AM43XX_CM_PER_GPIO1_CLKCTRL_OFFSET		0x0478
+#define AM43XX_CM_PER_GPIO2_CLKCTRL_OFFSET		0x0480
+#define AM43XX_CM_PER_GPIO3_CLKCTRL_OFFSET		0x0488
+#define AM43XX_CM_PER_I2C1_CLKCTRL_OFFSET		0x04a8
+#define AM43XX_CM_PER_I2C2_CLKCTRL_OFFSET		0x04b0
+#define AM43XX_CM_PER_MAILBOX0_CLKCTRL_OFFSET		0x04b8
+#define AM43XX_CM_PER_MMC0_CLKCTRL_OFFSET		0x04c0
+#define AM43XX_CM_PER_MMC1_CLKCTRL_OFFSET		0x04c8
+#define AM43XX_CM_PER_SPI0_CLKCTRL_OFFSET		0x0500
+#define AM43XX_CM_PER_SPI1_CLKCTRL_OFFSET		0x0508
+#define AM43XX_CM_PER_SPINLOCK_CLKCTRL_OFFSET		0x0528
+#define AM43XX_CM_PER_TIMER2_CLKCTRL_OFFSET		0x0530
+#define AM43XX_CM_PER_TIMER3_CLKCTRL_OFFSET		0x0538
+#define AM43XX_CM_PER_TIMER4_CLKCTRL_OFFSET		0x0540
+#define AM43XX_CM_PER_TIMER5_CLKCTRL_OFFSET		0x0548
+#define AM43XX_CM_PER_TIMER6_CLKCTRL_OFFSET		0x0550
+#define AM43XX_CM_PER_TIMER7_CLKCTRL_OFFSET		0x0558
+#define AM43XX_CM_WKUP_WKUP_M3_CLKCTRL_OFFSET		0x0228
+#define AM43XX_CM_WKUP_CONTROL_CLKCTRL_OFFSET		0x0360
+#define AM43XX_CM_WKUP_SMARTREFLEX0_CLKCTRL_OFFSET	0x0350
+#define AM43XX_CM_WKUP_SMARTREFLEX1_CLKCTRL_OFFSET	0x0358
+#define AM43XX_CM_WKUP_UART0_CLKCTRL_OFFSET		0x0348
+#define AM43XX_CM_WKUP_TIMER1_CLKCTRL_OFFSET		0x0328
+#define AM43XX_CM_WKUP_I2C0_CLKCTRL_OFFSET		0x0340
+#define AM43XX_CM_WKUP_GPIO0_CLKCTRL_OFFSET		0x0368
+#define AM43XX_CM_WKUP_ADC_TSC_CLKCTRL_OFFSET		0x0120
+#define AM43XX_CM_WKUP_WDT1_CLKCTRL_OFFSET		0x0338
+#define AM43XX_CM_WKUP_L4WKUP_CLKCTRL_OFFSET		0x0220
+#define AM43XX_CM_RTC_RTC_CLKCTRL_OFFSET		0x0020
+#define AM43XX_CM_PER_MMC2_CLKCTRL_OFFSET		0x0248
+#define AM43XX_CM_PER_GPMC_CLKCTRL_OFFSET		0x0220
+#define AM43XX_CM_PER_MCASP0_CLKCTRL_OFFSET		0x0238
+#define AM43XX_CM_PER_MCASP1_CLKCTRL_OFFSET		0x0240
+#define AM43XX_CM_PER_L4LS_CLKCTRL_OFFSET		0x0420
+#define AM43XX_CM_PER_L3_CLKCTRL_OFFSET			0x0020
+#define AM43XX_CM_PER_TPCC_CLKCTRL_OFFSET		0x0078
+#define AM43XX_CM_PER_TPTC0_CLKCTRL_OFFSET		0x0080
+#define AM43XX_CM_PER_TPTC1_CLKCTRL_OFFSET		0x0088
+#define AM43XX_CM_PER_TPTC2_CLKCTRL_OFFSET		0x0090
+#define AM43XX_CM_PER_CPGMAC0_CLKCTRL_OFFSET		0x0b20
+#define AM43XX_CM_PER_PRUSS_CLKCTRL_OFFSET		0x0320
+#define AM43XX_CM_GFX_GFX_CLKCTRL_OFFSET		0x0020
+#define AM43XX_CM_PER_L4HS_CLKCTRL_OFFSET		0x00a0
+#define AM43XX_CM_MPU_MPU_CLKCTRL_OFFSET		0x0020
+#define AM43XX_CM_PER_L3_INSTR_CLKCTRL_OFFSET		0x0040
+#define AM43XX_CM_PER_OCMCRAM_CLKCTRL_OFFSET		0x0050
+#define AM43XX_CM_PER_SHA0_CLKCTRL_OFFSET		0x0058
+#define AM43XX_CM_PER_AES0_CLKCTRL_OFFSET		0x0028
+#define AM43XX_CM_PER_TIMER8_CLKCTRL_OFFSET		0x0560
+#define AM43XX_CM_PER_TIMER9_CLKCTRL_OFFSET		0x0568
+#define AM43XX_CM_PER_TIMER10_CLKCTRL_OFFSET		0x0570
+#define AM43XX_CM_PER_TIMER11_CLKCTRL_OFFSET		0x0578
+#define AM43XX_CM_WKUP_SYNCTIMER_CLKCTRL_OFFSET		0x0230
+#define AM43XX_CM_PER_EPWMSS3_CLKCTRL_OFFSET		0x0450
+#define AM43XX_CM_PER_EPWMSS4_CLKCTRL_OFFSET		0x0458
+#define AM43XX_CM_PER_EPWMSS5_CLKCTRL_OFFSET		0x0460
+#define AM43XX_CM_PER_SPI2_CLKCTRL_OFFSET		0x0510
+#define AM43XX_CM_PER_SPI3_CLKCTRL_OFFSET		0x0518
+#define AM43XX_CM_PER_SPI4_CLKCTRL_OFFSET		0x0520
+#define AM43XX_CM_PER_GPIO4_CLKCTRL_OFFSET		0x0490
+#define AM43XX_CM_PER_GPIO5_CLKCTRL_OFFSET		0x0498
+
+#endif
-- 
cgit 


From eadc62fc43f8d69d2d269c72cd23e8a59ed37355 Mon Sep 17 00:00:00 2001
From: Ambresh K <ambresh@ti.com>
Date: Sat, 12 Oct 2013 15:45:54 +0530
Subject: ARM: OMAP2+: PM: AM43x powerdomain data

Add the data file to describe all power domains in AM43x SoC.
OMAP4 powerdomain operations is being reused here.

Signed-off-by: Ambresh K <ambresh@ti.com>
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Acked-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/powerdomain.h           |   1 +
 arch/arm/mach-omap2/powerdomains43xx_data.c | 136 ++++++++++++++++++++++++++++
 2 files changed, 137 insertions(+)
 create mode 100644 arch/arm/mach-omap2/powerdomains43xx_data.c

diff --git a/arch/arm/mach-omap2/powerdomain.h b/arch/arm/mach-omap2/powerdomain.h
index baf3d8bf6bea..da5a59ae77b6 100644
--- a/arch/arm/mach-omap2/powerdomain.h
+++ b/arch/arm/mach-omap2/powerdomain.h
@@ -257,6 +257,7 @@ extern void am33xx_powerdomains_init(void);
 extern void omap44xx_powerdomains_init(void);
 extern void omap54xx_powerdomains_init(void);
 extern void dra7xx_powerdomains_init(void);
+void am43xx_powerdomains_init(void);
 
 extern struct pwrdm_ops omap2_pwrdm_operations;
 extern struct pwrdm_ops omap3_pwrdm_operations;
diff --git a/arch/arm/mach-omap2/powerdomains43xx_data.c b/arch/arm/mach-omap2/powerdomains43xx_data.c
new file mode 100644
index 000000000000..95fee54c38ab
--- /dev/null
+++ b/arch/arm/mach-omap2/powerdomains43xx_data.c
@@ -0,0 +1,136 @@
+/*
+ * AM43xx Power domains framework
+ *
+ * Copyright (C) 2013 Texas Instruments, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include "powerdomain.h"
+
+#include "prcm-common.h"
+#include "prcm44xx.h"
+#include "prcm43xx.h"
+
+static struct powerdomain gfx_43xx_pwrdm = {
+	.name		  = "gfx_pwrdm",
+	.voltdm		  = { .name = "core" },
+	.prcm_offs	  = AM43XX_PRM_GFX_INST,
+	.prcm_partition	  = AM43XX_PRM_PARTITION,
+	.pwrsts		  = PWRSTS_OFF_ON,
+	.banks		  = 1,
+	.pwrsts_mem_on	= {
+		[0] = PWRSTS_ON,	/* gfx_mem */
+	},
+	.flags		  = PWRDM_HAS_LOWPOWERSTATECHANGE,
+};
+
+static struct powerdomain mpu_43xx_pwrdm = {
+	.name		  = "mpu_pwrdm",
+	.voltdm		  = { .name = "mpu" },
+	.prcm_offs	  = AM43XX_PRM_MPU_INST,
+	.prcm_partition	  = AM43XX_PRM_PARTITION,
+	.pwrsts		  = PWRSTS_OFF_RET_ON,
+	.pwrsts_logic_ret = PWRSTS_OFF_RET,
+	.banks		  = 3,
+	.pwrsts_mem_ret	= {
+		[0] = PWRSTS_OFF_RET,	/* mpu_l1 */
+		[1] = PWRSTS_OFF_RET,	/* mpu_l2 */
+		[2] = PWRSTS_OFF_RET,	/* mpu_ram */
+	},
+	.pwrsts_mem_on	= {
+		[0] = PWRSTS_ON,	/* mpu_l1 */
+		[1] = PWRSTS_ON,	/* mpu_l2 */
+		[2] = PWRSTS_ON,	/* mpu_ram */
+	},
+	.flags		  = PWRDM_HAS_LOWPOWERSTATECHANGE,
+};
+
+static struct powerdomain rtc_43xx_pwrdm = {
+	.name		  = "rtc_pwrdm",
+	.voltdm		  = { .name = "rtc" },
+	.prcm_offs	  = AM43XX_PRM_RTC_INST,
+	.prcm_partition	  = AM43XX_PRM_PARTITION,
+	.pwrsts		  = PWRSTS_ON,
+};
+
+static struct powerdomain wkup_43xx_pwrdm = {
+	.name		  = "wkup_pwrdm",
+	.voltdm		  = { .name = "core" },
+	.prcm_offs	  = AM43XX_PRM_WKUP_INST,
+	.prcm_partition	  = AM43XX_PRM_PARTITION,
+	.pwrsts		  = PWRSTS_ON,
+	.banks		  = 1,
+	.pwrsts_mem_on	= {
+		[0] = PWRSTS_ON,	/* debugss_mem */
+	},
+};
+
+static struct powerdomain tamper_43xx_pwrdm = {
+	.name		  = "tamper_pwrdm",
+	.voltdm		  = { .name = "tamper" },
+	.prcm_offs	  = AM43XX_PRM_TAMPER_INST,
+	.prcm_partition	  = AM43XX_PRM_PARTITION,
+	.pwrsts		  = PWRSTS_ON,
+};
+
+static struct powerdomain cefuse_43xx_pwrdm = {
+	.name		  = "cefuse_pwrdm",
+	.voltdm		  = { .name = "core" },
+	.prcm_offs	  = AM43XX_PRM_CEFUSE_INST,
+	.prcm_partition	  = AM43XX_PRM_PARTITION,
+	.pwrsts		  = PWRSTS_OFF_ON,
+	.flags		  = PWRDM_HAS_LOWPOWERSTATECHANGE,
+};
+
+static struct powerdomain per_43xx_pwrdm = {
+	.name		  = "per_pwrdm",
+	.voltdm		  = { .name = "core" },
+	.prcm_offs	  = AM43XX_PRM_PER_INST,
+	.prcm_partition	  = AM43XX_PRM_PARTITION,
+	.pwrsts		  = PWRSTS_OFF_RET_ON,
+	.pwrsts_logic_ret = PWRSTS_OFF_RET,
+	.banks		  = 4,
+	.pwrsts_mem_ret	= {
+		[0] = PWRSTS_OFF_RET,	/* icss_mem */
+		[1] = PWRSTS_OFF_RET,	/* per_mem */
+		[2] = PWRSTS_OFF_RET,	/* ram1_mem */
+		[3] = PWRSTS_OFF_RET,	/* ram2_mem */
+	},
+	.pwrsts_mem_on	= {
+		[0] = PWRSTS_ON,	/* icss_mem */
+		[1] = PWRSTS_ON,	/* per_mem */
+		[2] = PWRSTS_ON,	/* ram1_mem */
+		[3] = PWRSTS_ON,	/* ram2_mem */
+	},
+	.flags		  = PWRDM_HAS_LOWPOWERSTATECHANGE,
+};
+
+static struct powerdomain *powerdomains_am43xx[] __initdata = {
+	&gfx_43xx_pwrdm,
+	&mpu_43xx_pwrdm,
+	&rtc_43xx_pwrdm,
+	&wkup_43xx_pwrdm,
+	&tamper_43xx_pwrdm,
+	&cefuse_43xx_pwrdm,
+	&per_43xx_pwrdm,
+	NULL
+};
+
+static int am43xx_check_vcvp(void)
+{
+	return 0;
+}
+
+void __init am43xx_powerdomains_init(void)
+{
+	omap4_pwrdm_operations.pwrdm_has_voltdm = am43xx_check_vcvp;
+	pwrdm_register_platform_funcs(&omap4_pwrdm_operations);
+	pwrdm_register_pwrdms(powerdomains_am43xx);
+	pwrdm_complete_init();
+}
-- 
cgit 


From c9218fe63f5873f66349de8e2d3ad4cb3b24f00d Mon Sep 17 00:00:00 2001
From: Ambresh K <ambresh@ti.com>
Date: Sat, 12 Oct 2013 15:46:03 +0530
Subject: ARM: OMAP2+: CM: AM43x clockdomain data

Add the data file to describe clock domains in AM43x SoC.
OMAP4 clockdomain operations is being reused here.

Signed-off-by: Ambresh K <ambresh@ti.com>
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Acked-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/clockdomain.h           |   2 +
 arch/arm/mach-omap2/clockdomains43xx_data.c | 196 ++++++++++++++++++++++++++++
 arch/arm/mach-omap2/cminst44xx.c            |   9 ++
 3 files changed, 207 insertions(+)
 create mode 100644 arch/arm/mach-omap2/clockdomains43xx_data.c

diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h
index 5431b0cae665..f17f00697cc0 100644
--- a/arch/arm/mach-omap2/clockdomain.h
+++ b/arch/arm/mach-omap2/clockdomain.h
@@ -218,6 +218,7 @@ extern void __init am33xx_clockdomains_init(void);
 extern void __init omap44xx_clockdomains_init(void);
 extern void __init omap54xx_clockdomains_init(void);
 extern void __init dra7xx_clockdomains_init(void);
+void am43xx_clockdomains_init(void);
 
 extern void clkdm_add_autodeps(struct clockdomain *clkdm);
 extern void clkdm_del_autodeps(struct clockdomain *clkdm);
@@ -226,6 +227,7 @@ extern struct clkdm_ops omap2_clkdm_operations;
 extern struct clkdm_ops omap3_clkdm_operations;
 extern struct clkdm_ops omap4_clkdm_operations;
 extern struct clkdm_ops am33xx_clkdm_operations;
+extern struct clkdm_ops am43xx_clkdm_operations;
 
 extern struct clkdm_dep gfx_24xx_wkdeps[];
 extern struct clkdm_dep dsp_24xx_wkdeps[];
diff --git a/arch/arm/mach-omap2/clockdomains43xx_data.c b/arch/arm/mach-omap2/clockdomains43xx_data.c
new file mode 100644
index 000000000000..6d71c6082a24
--- /dev/null
+++ b/arch/arm/mach-omap2/clockdomains43xx_data.c
@@ -0,0 +1,196 @@
+/*
+ * AM43xx Clock domains framework
+ *
+ * Copyright (C) 2013 Texas Instruments, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/io.h>
+
+#include "clockdomain.h"
+#include "prcm44xx.h"
+#include "prcm43xx.h"
+
+static struct clockdomain l4_cefuse_43xx_clkdm = {
+	.name		  = "l4_cefuse_clkdm",
+	.pwrdm		  = { .name = "cefuse_pwrdm" },
+	.prcm_partition	  = AM43XX_CM_PARTITION,
+	.cm_inst	  = AM43XX_CM_CEFUSE_INST,
+	.clkdm_offs	  = AM43XX_CM_CEFUSE_CEFUSE_CDOFFS,
+	.flags		  = CLKDM_CAN_SWSUP,
+};
+
+static struct clockdomain mpu_43xx_clkdm = {
+	.name		  = "mpu_clkdm",
+	.pwrdm		  = { .name = "mpu_pwrdm" },
+	.prcm_partition	  = AM43XX_CM_PARTITION,
+	.cm_inst	  = AM43XX_CM_MPU_INST,
+	.clkdm_offs	  = AM43XX_CM_MPU_MPU_CDOFFS,
+	.flags		  = CLKDM_CAN_HWSUP_SWSUP,
+};
+
+static struct clockdomain l4ls_43xx_clkdm = {
+	.name		  = "l4ls_clkdm",
+	.pwrdm		  = { .name = "per_pwrdm" },
+	.prcm_partition	  = AM43XX_CM_PARTITION,
+	.cm_inst	  = AM43XX_CM_PER_INST,
+	.clkdm_offs	  = AM43XX_CM_PER_L4LS_CDOFFS,
+	.flags		  = CLKDM_CAN_SWSUP,
+};
+
+static struct clockdomain tamper_43xx_clkdm = {
+	.name		  = "tamper_clkdm",
+	.pwrdm		  = { .name = "tamper_pwrdm" },
+	.prcm_partition	  = AM43XX_CM_PARTITION,
+	.cm_inst	  = AM43XX_CM_TAMPER_INST,
+	.clkdm_offs	  = AM43XX_CM_TAMPER_TAMPER_CDOFFS,
+	.flags		  = CLKDM_CAN_SWSUP,
+};
+
+static struct clockdomain l4_rtc_43xx_clkdm = {
+	.name		  = "l4_rtc_clkdm",
+	.pwrdm		  = { .name = "rtc_pwrdm" },
+	.prcm_partition	  = AM43XX_CM_PARTITION,
+	.cm_inst	  = AM43XX_CM_RTC_INST,
+	.clkdm_offs	  = AM43XX_CM_RTC_RTC_CDOFFS,
+	.flags		  = CLKDM_CAN_SWSUP,
+};
+
+static struct clockdomain pruss_ocp_43xx_clkdm = {
+	.name		  = "pruss_ocp_clkdm",
+	.pwrdm		  = { .name = "per_pwrdm" },
+	.prcm_partition	  = AM43XX_CM_PARTITION,
+	.cm_inst	  = AM43XX_CM_PER_INST,
+	.clkdm_offs	  = AM43XX_CM_PER_ICSS_CDOFFS,
+	.flags		  = CLKDM_CAN_SWSUP,
+};
+
+static struct clockdomain ocpwp_l3_43xx_clkdm = {
+	.name		  = "ocpwp_l3_clkdm",
+	.pwrdm		  = { .name = "per_pwrdm" },
+	.prcm_partition	  = AM43XX_CM_PARTITION,
+	.cm_inst	  = AM43XX_CM_PER_INST,
+	.clkdm_offs	  = AM43XX_CM_PER_OCPWP_L3_CDOFFS,
+	.flags		  = CLKDM_CAN_SWSUP,
+};
+
+static struct clockdomain l3s_tsc_43xx_clkdm = {
+	.name		  = "l3s_tsc_clkdm",
+	.pwrdm		  = { .name = "wkup_pwrdm" },
+	.prcm_partition	  = AM43XX_CM_PARTITION,
+	.cm_inst	  = AM43XX_CM_WKUP_INST,
+	.clkdm_offs	  = AM43XX_CM_WKUP_L3S_TSC_CDOFFS,
+	.flags		  = CLKDM_CAN_SWSUP,
+};
+
+static struct clockdomain dss_43xx_clkdm = {
+	.name		  = "dss_clkdm",
+	.pwrdm		  = { .name = "per_pwrdm" },
+	.prcm_partition	  = AM43XX_CM_PARTITION,
+	.cm_inst	  = AM43XX_CM_PER_INST,
+	.clkdm_offs	  = AM43XX_CM_PER_DSS_CDOFFS,
+	.flags		  = CLKDM_CAN_SWSUP,
+};
+
+static struct clockdomain l3_aon_43xx_clkdm = {
+	.name		  = "l3_aon_clkdm",
+	.pwrdm		  = { .name = "wkup_pwrdm" },
+	.prcm_partition	  = AM43XX_CM_PARTITION,
+	.cm_inst	  = AM43XX_CM_WKUP_INST,
+	.clkdm_offs	  = AM43XX_CM_WKUP_L3_AON_CDOFFS,
+	.flags		  = CLKDM_CAN_SWSUP,
+};
+
+static struct clockdomain emif_43xx_clkdm = {
+	.name		  = "emif_clkdm",
+	.pwrdm		  = { .name = "per_pwrdm" },
+	.prcm_partition	  = AM43XX_CM_PARTITION,
+	.cm_inst	  = AM43XX_CM_PER_INST,
+	.clkdm_offs	  = AM43XX_CM_PER_EMIF_CDOFFS,
+	.flags		  = CLKDM_CAN_SWSUP,
+};
+
+static struct clockdomain l4_wkup_aon_43xx_clkdm = {
+	.name		  = "l4_wkup_aon_clkdm",
+	.pwrdm		  = { .name = "wkup_pwrdm" },
+	.prcm_partition	  = AM43XX_CM_PARTITION,
+	.cm_inst	  = AM43XX_CM_WKUP_INST,
+	.clkdm_offs	  = AM43XX_CM_WKUP_L4_WKUP_AON_CDOFFS,
+};
+
+static struct clockdomain l3_43xx_clkdm = {
+	.name		  = "l3_clkdm",
+	.pwrdm		  = { .name = "per_pwrdm" },
+	.prcm_partition	  = AM43XX_CM_PARTITION,
+	.cm_inst	  = AM43XX_CM_PER_INST,
+	.clkdm_offs	  = AM43XX_CM_PER_L3_CDOFFS,
+	.flags		  = CLKDM_CAN_SWSUP,
+};
+
+static struct clockdomain l4_wkup_43xx_clkdm = {
+	.name		  = "l4_wkup_clkdm",
+	.pwrdm		  = { .name = "wkup_pwrdm" },
+	.prcm_partition	  = AM43XX_CM_PARTITION,
+	.cm_inst	  = AM43XX_CM_WKUP_INST,
+	.clkdm_offs	  = AM43XX_CM_WKUP_WKUP_CDOFFS,
+	.flags		  = CLKDM_CAN_SWSUP,
+};
+
+static struct clockdomain cpsw_125mhz_43xx_clkdm = {
+	.name		  = "cpsw_125mhz_clkdm",
+	.pwrdm		  = { .name = "per_pwrdm" },
+	.prcm_partition	  = AM43XX_CM_PARTITION,
+	.cm_inst	  = AM43XX_CM_PER_INST,
+	.clkdm_offs	  = AM43XX_CM_PER_CPSW_CDOFFS,
+	.flags		  = CLKDM_CAN_SWSUP,
+};
+
+static struct clockdomain gfx_l3_43xx_clkdm = {
+	.name		  = "gfx_l3_clkdm",
+	.pwrdm		  = { .name = "gfx_pwrdm" },
+	.prcm_partition	  = AM43XX_CM_PARTITION,
+	.cm_inst	  = AM43XX_CM_GFX_INST,
+	.clkdm_offs	  = AM43XX_CM_GFX_GFX_L3_CDOFFS,
+	.flags		  = CLKDM_CAN_SWSUP,
+};
+
+static struct clockdomain l3s_43xx_clkdm = {
+	.name		  = "l3s_clkdm",
+	.pwrdm		  = { .name = "per_pwrdm" },
+	.prcm_partition	  = AM43XX_CM_PARTITION,
+	.cm_inst	  = AM43XX_CM_PER_INST,
+	.clkdm_offs	  = AM43XX_CM_PER_L3S_CDOFFS,
+	.flags		  = CLKDM_CAN_SWSUP,
+};
+
+static struct clockdomain *clockdomains_am43xx[] __initdata = {
+	&l4_cefuse_43xx_clkdm,
+	&mpu_43xx_clkdm,
+	&l4ls_43xx_clkdm,
+	&tamper_43xx_clkdm,
+	&l4_rtc_43xx_clkdm,
+	&pruss_ocp_43xx_clkdm,
+	&ocpwp_l3_43xx_clkdm,
+	&l3s_tsc_43xx_clkdm,
+	&dss_43xx_clkdm,
+	&l3_aon_43xx_clkdm,
+	&emif_43xx_clkdm,
+	&l4_wkup_aon_43xx_clkdm,
+	&l3_43xx_clkdm,
+	&l4_wkup_43xx_clkdm,
+	&cpsw_125mhz_43xx_clkdm,
+	&gfx_l3_43xx_clkdm,
+	&l3s_43xx_clkdm,
+	NULL
+};
+
+void __init am43xx_clockdomains_init(void)
+{
+	clkdm_register_platform_funcs(&am43xx_clkdm_operations);
+	clkdm_register_clkdms(clockdomains_am43xx);
+	clkdm_complete_init();
+}
diff --git a/arch/arm/mach-omap2/cminst44xx.c b/arch/arm/mach-omap2/cminst44xx.c
index e95722230a0e..731ca134348c 100644
--- a/arch/arm/mach-omap2/cminst44xx.c
+++ b/arch/arm/mach-omap2/cminst44xx.c
@@ -483,3 +483,12 @@ struct clkdm_ops omap4_clkdm_operations = {
 	.clkdm_clk_enable	= omap4_clkdm_clk_enable,
 	.clkdm_clk_disable	= omap4_clkdm_clk_disable,
 };
+
+struct clkdm_ops am43xx_clkdm_operations = {
+	.clkdm_sleep		= omap4_clkdm_sleep,
+	.clkdm_wakeup		= omap4_clkdm_wakeup,
+	.clkdm_allow_idle	= omap4_clkdm_allow_idle,
+	.clkdm_deny_idle	= omap4_clkdm_deny_idle,
+	.clkdm_clk_enable	= omap4_clkdm_clk_enable,
+	.clkdm_clk_disable	= omap4_clkdm_clk_disable,
+};
-- 
cgit 


From 6913952f56f0cdbecbe77a29f4d0eea779f5584f Mon Sep 17 00:00:00 2001
From: Afzal Mohammed <afzal@ti.com>
Date: Sat, 12 Oct 2013 15:46:12 +0530
Subject: ARM: OMAP2+: hwmod: AM43x support

Add hwmod support for IP's that are present in AM43x, but not in AM335x.
AM43x additional ones added here are,
1. synctimer
2. timer8-11
3. ehrpwm3-5
4. spi2-4
5. gpio4-5

AM43x pruss interconnect which is different as compared to AM335x, has
been taken care.

And register offsets for same hwmod's shared with AM335x is different,
AM43x register offsets are updated appropriately.

ocp clock of those in l4_wkup is fed from "sys_clkin_ck" instead of
"dpll_core_m4_div2_ck", so "ocpif" for those in AM43x l4_wkup has been
added seperately.

hwmod's has been added for those that have main clock (wkup_m3, control,
gpio0) and clock domain (l4_hs) different from AM335x. debugss and
adc_tsc that have different clocks and clockdomains repectively has not
been added due to the reasons mentioned below.

AM43x also has IP's like qspi, hdq1w, vpfe, des, rng, usb, dss, debugss,
adc_tsc. These are not handled here due to both/either of following
reasons,
1. To avoid churn; most of them don't have DT bindings, which would
   necessitate adding address space in hwmod, which any way would have
   to be removed once DT bindings happen with driver support.
2. patches would come in from sources other than the author

Signed-off-by: Afzal Mohammed <afzal@ti.com>
Acked-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/omap_hwmod.h                   |   1 +
 .../mach-omap2/omap_hwmod_33xx_43xx_common_data.h  |   1 +
 .../mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c |  74 +++
 arch/arm/mach-omap2/omap_hwmod_43xx_data.c         | 619 +++++++++++++++++++++
 4 files changed, 695 insertions(+)
 create mode 100644 arch/arm/mach-omap2/omap_hwmod_43xx_data.c

diff --git a/arch/arm/mach-omap2/omap_hwmod.h b/arch/arm/mach-omap2/omap_hwmod.h
index d02acf9308d3..0f97d635ff90 100644
--- a/arch/arm/mach-omap2/omap_hwmod.h
+++ b/arch/arm/mach-omap2/omap_hwmod.h
@@ -752,6 +752,7 @@ extern int omap44xx_hwmod_init(void);
 extern int omap54xx_hwmod_init(void);
 extern int am33xx_hwmod_init(void);
 extern int dra7xx_hwmod_init(void);
+int am43xx_hwmod_init(void);
 
 extern int __init omap_hwmod_register_links(struct omap_hwmod_ocp_if **ois);
 
diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h
index a9a790297f68..130332c0534d 100644
--- a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_common_data.h
@@ -158,5 +158,6 @@ extern struct omap_gpio_dev_attr gpio_dev_attr;
 extern struct omap2_mcspi_dev_attr mcspi_attrib;
 
 void omap_hwmod_am33xx_reg(void);
+void omap_hwmod_am43xx_reg(void);
 
 #endif
diff --git a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
index ffb371ff42dc..0f178623e7da 100644
--- a/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_33xx_43xx_ipblock_data.c
@@ -23,6 +23,7 @@
 #include "cm33xx.h"
 #include "prm33xx.h"
 #include "omap_hwmod_33xx_43xx_common_data.h"
+#include "prcm43xx.h"
 
 #define CLKCTRL(oh, clkctrl) ((oh).prcm.omap4.clkctrl_offs = (clkctrl))
 #define RSTCTRL(oh, rstctrl) ((oh).prcm.omap4.rstctrl_offs = (rstctrl))
@@ -1393,3 +1394,76 @@ void omap_hwmod_am33xx_reg(void)
 	omap_hwmod_am33xx_clkctrl();
 	omap_hwmod_am33xx_rst();
 }
+
+static void omap_hwmod_am43xx_clkctrl(void)
+{
+	CLKCTRL(am33xx_uart2_hwmod, AM43XX_CM_PER_UART1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_uart3_hwmod, AM43XX_CM_PER_UART2_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_uart4_hwmod, AM43XX_CM_PER_UART3_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_uart5_hwmod, AM43XX_CM_PER_UART4_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_uart6_hwmod, AM43XX_CM_PER_UART5_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_dcan0_hwmod, AM43XX_CM_PER_DCAN0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_dcan1_hwmod, AM43XX_CM_PER_DCAN1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_elm_hwmod, AM43XX_CM_PER_ELM_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_epwmss0_hwmod, AM43XX_CM_PER_EPWMSS0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_epwmss1_hwmod, AM43XX_CM_PER_EPWMSS1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_epwmss2_hwmod, AM43XX_CM_PER_EPWMSS2_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_gpio1_hwmod, AM43XX_CM_PER_GPIO1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_gpio2_hwmod, AM43XX_CM_PER_GPIO2_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_gpio3_hwmod, AM43XX_CM_PER_GPIO3_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_i2c2_hwmod, AM43XX_CM_PER_I2C1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_i2c3_hwmod, AM43XX_CM_PER_I2C2_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_mailbox_hwmod, AM43XX_CM_PER_MAILBOX0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_mcasp0_hwmod, AM43XX_CM_PER_MCASP0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_mcasp1_hwmod, AM43XX_CM_PER_MCASP1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_mmc0_hwmod, AM43XX_CM_PER_MMC0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_mmc1_hwmod, AM43XX_CM_PER_MMC1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_spi0_hwmod, AM43XX_CM_PER_SPI0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_spi1_hwmod, AM43XX_CM_PER_SPI1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_spinlock_hwmod, AM43XX_CM_PER_SPINLOCK_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_timer2_hwmod, AM43XX_CM_PER_TIMER2_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_timer3_hwmod, AM43XX_CM_PER_TIMER3_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_timer4_hwmod, AM43XX_CM_PER_TIMER4_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_timer5_hwmod, AM43XX_CM_PER_TIMER5_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_timer6_hwmod, AM43XX_CM_PER_TIMER6_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_timer7_hwmod, AM43XX_CM_PER_TIMER7_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_smartreflex0_hwmod,
+		AM43XX_CM_WKUP_SMARTREFLEX0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_smartreflex1_hwmod,
+		AM43XX_CM_WKUP_SMARTREFLEX1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_uart1_hwmod, AM43XX_CM_WKUP_UART0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_timer1_hwmod, AM43XX_CM_WKUP_TIMER1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_i2c1_hwmod, AM43XX_CM_WKUP_I2C0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_wd_timer1_hwmod, AM43XX_CM_WKUP_WDT1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_rtc_hwmod, AM43XX_CM_RTC_RTC_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_mmc2_hwmod, AM43XX_CM_PER_MMC2_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_gpmc_hwmod, AM43XX_CM_PER_GPMC_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_l4_ls_hwmod, AM43XX_CM_PER_L4LS_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_l4_wkup_hwmod, AM43XX_CM_WKUP_L4WKUP_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_l3_main_hwmod, AM43XX_CM_PER_L3_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_tpcc_hwmod, AM43XX_CM_PER_TPCC_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_tptc0_hwmod, AM43XX_CM_PER_TPTC0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_tptc1_hwmod, AM43XX_CM_PER_TPTC1_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_tptc2_hwmod, AM43XX_CM_PER_TPTC2_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_gfx_hwmod, AM43XX_CM_GFX_GFX_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_cpgmac0_hwmod, AM43XX_CM_PER_CPGMAC0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_pruss_hwmod, AM43XX_CM_PER_PRUSS_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_mpu_hwmod , AM43XX_CM_MPU_MPU_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_l3_instr_hwmod , AM43XX_CM_PER_L3_INSTR_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_ocmcram_hwmod , AM43XX_CM_PER_OCMCRAM_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_sha0_hwmod , AM43XX_CM_PER_SHA0_CLKCTRL_OFFSET);
+	CLKCTRL(am33xx_aes0_hwmod , AM43XX_CM_PER_AES0_CLKCTRL_OFFSET);
+}
+
+static void omap_hwmod_am43xx_rst(void)
+{
+	RSTCTRL(am33xx_pruss_hwmod, AM43XX_RM_PER_RSTCTRL_OFFSET);
+	RSTCTRL(am33xx_gfx_hwmod, AM43XX_RM_GFX_RSTCTRL_OFFSET);
+	RSTST(am33xx_gfx_hwmod, AM43XX_RM_GFX_RSTST_OFFSET);
+}
+
+void omap_hwmod_am43xx_reg(void)
+{
+	omap_hwmod_am43xx_clkctrl();
+	omap_hwmod_am43xx_rst();
+}
diff --git a/arch/arm/mach-omap2/omap_hwmod_43xx_data.c b/arch/arm/mach-omap2/omap_hwmod_43xx_data.c
new file mode 100644
index 000000000000..6500d43defc5
--- /dev/null
+++ b/arch/arm/mach-omap2/omap_hwmod_43xx_data.c
@@ -0,0 +1,619 @@
+/*
+ * Copyright (C) 2013 Texas Instruments Incorporated
+ *
+ * Hwmod present only in AM43x and those that differ other than register
+ * offsets as compared to AM335x.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/platform_data/gpio-omap.h>
+#include <linux/platform_data/spi-omap2-mcspi.h>
+#include "omap_hwmod.h"
+#include "omap_hwmod_33xx_43xx_common_data.h"
+#include "prcm43xx.h"
+
+/* IP blocks */
+static struct omap_hwmod am43xx_l4_hs_hwmod = {
+	.name		= "l4_hs",
+	.class		= &am33xx_l4_hwmod_class,
+	.clkdm_name	= "l3_clkdm",
+	.flags		= HWMOD_INIT_NO_IDLE,
+	.main_clk	= "l4hs_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM43XX_CM_PER_L4HS_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+static struct omap_hwmod_rst_info am33xx_wkup_m3_resets[] = {
+	{ .name = "wkup_m3", .rst_shift = 3, .st_shift = 5 },
+};
+
+static struct omap_hwmod am43xx_wkup_m3_hwmod = {
+	.name		= "wkup_m3",
+	.class		= &am33xx_wkup_m3_hwmod_class,
+	.clkdm_name	= "l4_wkup_aon_clkdm",
+	/* Keep hardreset asserted */
+	.flags		= HWMOD_INIT_NO_RESET | HWMOD_NO_IDLEST,
+	.main_clk	= "sys_clkin_ck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM43XX_CM_WKUP_WKUP_M3_CLKCTRL_OFFSET,
+			.rstctrl_offs	= AM43XX_RM_WKUP_RSTCTRL_OFFSET,
+			.rstst_offs	= AM43XX_RM_WKUP_RSTST_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+	.rst_lines	= am33xx_wkup_m3_resets,
+	.rst_lines_cnt	= ARRAY_SIZE(am33xx_wkup_m3_resets),
+};
+
+static struct omap_hwmod am43xx_control_hwmod = {
+	.name		= "control",
+	.class		= &am33xx_control_hwmod_class,
+	.clkdm_name	= "l4_wkup_clkdm",
+	.flags		= HWMOD_INIT_NO_IDLE,
+	.main_clk	= "sys_clkin_ck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM43XX_CM_WKUP_CONTROL_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+static struct omap_hwmod_opt_clk gpio0_opt_clks[] = {
+	{ .role = "dbclk", .clk = "gpio0_dbclk" },
+};
+
+static struct omap_hwmod am43xx_gpio0_hwmod = {
+	.name		= "gpio1",
+	.class		= &am33xx_gpio_hwmod_class,
+	.clkdm_name	= "l4_wkup_clkdm",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
+	.main_clk	= "sys_clkin_ck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM43XX_CM_WKUP_GPIO0_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+	.opt_clks	= gpio0_opt_clks,
+	.opt_clks_cnt	= ARRAY_SIZE(gpio0_opt_clks),
+	.dev_attr	= &gpio_dev_attr,
+};
+
+static struct omap_hwmod_class_sysconfig am43xx_synctimer_sysc = {
+	.rev_offs	= 0x0,
+	.sysc_offs	= 0x4,
+	.sysc_flags	= SYSC_HAS_SIDLEMODE,
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class am43xx_synctimer_hwmod_class = {
+	.name	= "synctimer",
+	.sysc	= &am43xx_synctimer_sysc,
+};
+
+static struct omap_hwmod am43xx_synctimer_hwmod = {
+	.name		= "counter_32k",
+	.class		= &am43xx_synctimer_hwmod_class,
+	.clkdm_name	= "l4_wkup_aon_clkdm",
+	.flags		= HWMOD_SWSUP_SIDLE,
+	.main_clk	= "synctimer_32kclk",
+	.prcm = {
+		.omap4 = {
+			.clkctrl_offs = AM43XX_CM_WKUP_SYNCTIMER_CLKCTRL_OFFSET,
+			.modulemode   = MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+static struct omap_hwmod am43xx_timer8_hwmod = {
+	.name		= "timer8",
+	.class		= &am33xx_timer_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "timer8_fck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM43XX_CM_PER_TIMER8_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+static struct omap_hwmod am43xx_timer9_hwmod = {
+	.name		= "timer9",
+	.class		= &am33xx_timer_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "timer9_fck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM43XX_CM_PER_TIMER9_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+static struct omap_hwmod am43xx_timer10_hwmod = {
+	.name		= "timer10",
+	.class		= &am33xx_timer_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "timer10_fck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM43XX_CM_PER_TIMER10_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+static struct omap_hwmod am43xx_timer11_hwmod = {
+	.name		= "timer11",
+	.class		= &am33xx_timer_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "timer11_fck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs	= AM43XX_CM_PER_TIMER11_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+static struct omap_hwmod am43xx_epwmss3_hwmod = {
+	.name		= "epwmss3",
+	.class		= &am33xx_epwmss_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs = AM43XX_CM_PER_EPWMSS3_CLKCTRL_OFFSET,
+			.modulemode   = MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+static struct omap_hwmod am43xx_ehrpwm3_hwmod = {
+	.name		= "ehrpwm3",
+	.class		= &am33xx_ehrpwm_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+};
+
+static struct omap_hwmod am43xx_epwmss4_hwmod = {
+	.name		= "epwmss4",
+	.class		= &am33xx_epwmss_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs = AM43XX_CM_PER_EPWMSS4_CLKCTRL_OFFSET,
+			.modulemode   = MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+static struct omap_hwmod am43xx_ehrpwm4_hwmod = {
+	.name		= "ehrpwm4",
+	.class		= &am33xx_ehrpwm_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+};
+
+static struct omap_hwmod am43xx_epwmss5_hwmod = {
+	.name		= "epwmss5",
+	.class		= &am33xx_epwmss_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs = AM43XX_CM_PER_EPWMSS5_CLKCTRL_OFFSET,
+			.modulemode   = MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+static struct omap_hwmod am43xx_ehrpwm5_hwmod = {
+	.name		= "ehrpwm5",
+	.class		= &am33xx_ehrpwm_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+};
+
+static struct omap_hwmod am43xx_spi2_hwmod = {
+	.name		= "spi2",
+	.class		= &am33xx_spi_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "dpll_per_m2_div4_ck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs = AM43XX_CM_PER_SPI2_CLKCTRL_OFFSET,
+			.modulemode   = MODULEMODE_SWCTRL,
+		},
+	},
+	.dev_attr	= &mcspi_attrib,
+};
+
+static struct omap_hwmod am43xx_spi3_hwmod = {
+	.name		= "spi3",
+	.class		= &am33xx_spi_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "dpll_per_m2_div4_ck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs = AM43XX_CM_PER_SPI3_CLKCTRL_OFFSET,
+			.modulemode   = MODULEMODE_SWCTRL,
+		},
+	},
+	.dev_attr	= &mcspi_attrib,
+};
+
+static struct omap_hwmod am43xx_spi4_hwmod = {
+	.name		= "spi4",
+	.class		= &am33xx_spi_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "dpll_per_m2_div4_ck",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs = AM43XX_CM_PER_SPI4_CLKCTRL_OFFSET,
+			.modulemode   = MODULEMODE_SWCTRL,
+		},
+	},
+	.dev_attr	= &mcspi_attrib,
+};
+
+static struct omap_hwmod_opt_clk gpio4_opt_clks[] = {
+	{ .role = "dbclk", .clk = "gpio4_dbclk" },
+};
+
+static struct omap_hwmod am43xx_gpio4_hwmod = {
+	.name		= "gpio5",
+	.class		= &am33xx_gpio_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
+	.main_clk	= "l4ls_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs = AM43XX_CM_PER_GPIO4_CLKCTRL_OFFSET,
+			.modulemode   = MODULEMODE_SWCTRL,
+		},
+	},
+	.opt_clks	= gpio4_opt_clks,
+	.opt_clks_cnt	= ARRAY_SIZE(gpio4_opt_clks),
+	.dev_attr	= &gpio_dev_attr,
+};
+
+static struct omap_hwmod_opt_clk gpio5_opt_clks[] = {
+	{ .role = "dbclk", .clk = "gpio5_dbclk" },
+};
+
+static struct omap_hwmod am43xx_gpio5_hwmod = {
+	.name		= "gpio6",
+	.class		= &am33xx_gpio_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.flags		= HWMOD_CONTROL_OPT_CLKS_IN_RESET,
+	.main_clk	= "l4ls_gclk",
+	.prcm		= {
+		.omap4	= {
+			.clkctrl_offs = AM43XX_CM_PER_GPIO5_CLKCTRL_OFFSET,
+			.modulemode   = MODULEMODE_SWCTRL,
+		},
+	},
+	.opt_clks	= gpio5_opt_clks,
+	.opt_clks_cnt	= ARRAY_SIZE(gpio5_opt_clks),
+	.dev_attr	= &gpio_dev_attr,
+};
+
+/* Interfaces */
+static struct omap_hwmod_ocp_if am43xx_l3_main__l4_hs = {
+	.master		= &am33xx_l3_main_hwmod,
+	.slave		= &am43xx_l4_hs_hwmod,
+	.clk		= "l3s_gclk",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+static struct omap_hwmod_ocp_if am43xx_wkup_m3__l4_wkup = {
+	.master		= &am43xx_wkup_m3_hwmod,
+	.slave		= &am33xx_l4_wkup_hwmod,
+	.clk		= "sys_clkin_ck",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_wkup__wkup_m3 = {
+	.master		= &am33xx_l4_wkup_hwmod,
+	.slave		= &am43xx_wkup_m3_hwmod,
+	.clk		= "sys_clkin_ck",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l3_main__pruss = {
+	.master		= &am33xx_l3_main_hwmod,
+	.slave		= &am33xx_pruss_hwmod,
+	.clk		= "dpll_core_m4_ck",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_wkup__smartreflex0 = {
+	.master		= &am33xx_l4_wkup_hwmod,
+	.slave		= &am33xx_smartreflex0_hwmod,
+	.clk		= "sys_clkin_ck",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_wkup__smartreflex1 = {
+	.master		= &am33xx_l4_wkup_hwmod,
+	.slave		= &am33xx_smartreflex1_hwmod,
+	.clk		= "sys_clkin_ck",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_wkup__control = {
+	.master		= &am33xx_l4_wkup_hwmod,
+	.slave		= &am43xx_control_hwmod,
+	.clk		= "sys_clkin_ck",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_wkup__i2c1 = {
+	.master		= &am33xx_l4_wkup_hwmod,
+	.slave		= &am33xx_i2c1_hwmod,
+	.clk		= "sys_clkin_ck",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_wkup__gpio0 = {
+	.master		= &am33xx_l4_wkup_hwmod,
+	.slave		= &am43xx_gpio0_hwmod,
+	.clk		= "sys_clkin_ck",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_hs__cpgmac0 = {
+	.master		= &am43xx_l4_hs_hwmod,
+	.slave		= &am33xx_cpgmac0_hwmod,
+	.clk		= "cpsw_125mhz_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_wkup__timer1 = {
+	.master		= &am33xx_l4_wkup_hwmod,
+	.slave		= &am33xx_timer1_hwmod,
+	.clk		= "sys_clkin_ck",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_wkup__uart1 = {
+	.master		= &am33xx_l4_wkup_hwmod,
+	.slave		= &am33xx_uart1_hwmod,
+	.clk		= "sys_clkin_ck",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_wkup__wd_timer1 = {
+	.master		= &am33xx_l4_wkup_hwmod,
+	.slave		= &am33xx_wd_timer1_hwmod,
+	.clk		= "sys_clkin_ck",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am33xx_l4_wkup__synctimer = {
+	.master		= &am33xx_l4_wkup_hwmod,
+	.slave		= &am43xx_synctimer_hwmod,
+	.clk		= "sys_clkin_ck",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_ls__timer8 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am43xx_timer8_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_ls__timer9 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am43xx_timer9_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_ls__timer10 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am43xx_timer10_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_ls__timer11 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am43xx_timer11_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_ls__epwmss3 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am43xx_epwmss3_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_epwmss3__ehrpwm3 = {
+	.master		= &am43xx_epwmss3_hwmod,
+	.slave		= &am43xx_ehrpwm3_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_ls__epwmss4 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am43xx_epwmss4_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_epwmss4__ehrpwm4 = {
+	.master		= &am43xx_epwmss4_hwmod,
+	.slave		= &am43xx_ehrpwm4_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_ls__epwmss5 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am43xx_epwmss5_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_epwmss5__ehrpwm5 = {
+	.master		= &am43xx_epwmss5_hwmod,
+	.slave		= &am43xx_ehrpwm5_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_ls__mcspi2 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am43xx_spi2_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_ls__mcspi3 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am43xx_spi3_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_ls__mcspi4 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am43xx_spi4_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_ls__gpio4 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am43xx_gpio4_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_ls__gpio5 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am43xx_gpio5_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+static struct omap_hwmod_ocp_if *am43xx_hwmod_ocp_ifs[] __initdata = {
+	&am33xx_l4_wkup__synctimer,
+	&am43xx_l4_ls__timer8,
+	&am43xx_l4_ls__timer9,
+	&am43xx_l4_ls__timer10,
+	&am43xx_l4_ls__timer11,
+	&am43xx_l4_ls__epwmss3,
+	&am43xx_epwmss3__ehrpwm3,
+	&am43xx_l4_ls__epwmss4,
+	&am43xx_epwmss4__ehrpwm4,
+	&am43xx_l4_ls__epwmss5,
+	&am43xx_epwmss5__ehrpwm5,
+	&am43xx_l4_ls__mcspi2,
+	&am43xx_l4_ls__mcspi3,
+	&am43xx_l4_ls__mcspi4,
+	&am43xx_l4_ls__gpio4,
+	&am43xx_l4_ls__gpio5,
+	&am43xx_l3_main__pruss,
+	&am33xx_mpu__l3_main,
+	&am33xx_mpu__prcm,
+	&am33xx_l3_s__l4_ls,
+	&am33xx_l3_s__l4_wkup,
+	&am43xx_l3_main__l4_hs,
+	&am33xx_l3_main__l3_s,
+	&am33xx_l3_main__l3_instr,
+	&am33xx_l3_main__gfx,
+	&am33xx_l3_s__l3_main,
+	&am33xx_pruss__l3_main,
+	&am43xx_wkup_m3__l4_wkup,
+	&am33xx_gfx__l3_main,
+	&am43xx_l4_wkup__wkup_m3,
+	&am43xx_l4_wkup__control,
+	&am43xx_l4_wkup__smartreflex0,
+	&am43xx_l4_wkup__smartreflex1,
+	&am43xx_l4_wkup__uart1,
+	&am43xx_l4_wkup__timer1,
+	&am43xx_l4_wkup__i2c1,
+	&am43xx_l4_wkup__gpio0,
+	&am43xx_l4_wkup__wd_timer1,
+	&am33xx_l4_per__dcan0,
+	&am33xx_l4_per__dcan1,
+	&am33xx_l4_per__gpio1,
+	&am33xx_l4_per__gpio2,
+	&am33xx_l4_per__gpio3,
+	&am33xx_l4_per__i2c2,
+	&am33xx_l4_per__i2c3,
+	&am33xx_l4_per__mailbox,
+	&am33xx_l4_ls__mcasp0,
+	&am33xx_l4_ls__mcasp1,
+	&am33xx_l4_ls__mmc0,
+	&am33xx_l4_ls__mmc1,
+	&am33xx_l3_s__mmc2,
+	&am33xx_l4_ls__timer2,
+	&am33xx_l4_ls__timer3,
+	&am33xx_l4_ls__timer4,
+	&am33xx_l4_ls__timer5,
+	&am33xx_l4_ls__timer6,
+	&am33xx_l4_ls__timer7,
+	&am33xx_l3_main__tpcc,
+	&am33xx_l4_ls__uart2,
+	&am33xx_l4_ls__uart3,
+	&am33xx_l4_ls__uart4,
+	&am33xx_l4_ls__uart5,
+	&am33xx_l4_ls__uart6,
+	&am33xx_l4_ls__elm,
+	&am33xx_l4_ls__epwmss0,
+	&am33xx_epwmss0__ecap0,
+	&am33xx_epwmss0__eqep0,
+	&am33xx_epwmss0__ehrpwm0,
+	&am33xx_l4_ls__epwmss1,
+	&am33xx_epwmss1__ecap1,
+	&am33xx_epwmss1__eqep1,
+	&am33xx_epwmss1__ehrpwm1,
+	&am33xx_l4_ls__epwmss2,
+	&am33xx_epwmss2__ecap2,
+	&am33xx_epwmss2__eqep2,
+	&am33xx_epwmss2__ehrpwm2,
+	&am33xx_l3_s__gpmc,
+	&am33xx_l4_ls__mcspi0,
+	&am33xx_l4_ls__mcspi1,
+	&am33xx_l3_main__tptc0,
+	&am33xx_l3_main__tptc1,
+	&am33xx_l3_main__tptc2,
+	&am33xx_l3_main__ocmc,
+	&am43xx_l4_hs__cpgmac0,
+	&am33xx_cpgmac0__mdio,
+	&am33xx_l3_main__sha0,
+	&am33xx_l3_main__aes0,
+	NULL,
+};
+
+int __init am43xx_hwmod_init(void)
+{
+	omap_hwmod_am43xx_reg();
+	omap_hwmod_init();
+	return omap_hwmod_register_links(am43xx_hwmod_ocp_ifs);
+}
-- 
cgit 


From c8b428a5b16bf02ae0290511466e0d15a9f65b35 Mon Sep 17 00:00:00 2001
From: Afzal Mohammed <afzal@ti.com>
Date: Sat, 12 Oct 2013 15:46:20 +0530
Subject: ARM: OMAP2+: hwmod: AM43x operations

Reuse OMAP4 operations on AM43x.

Context related ops are not used on AM43x, as this would not add value
when using DT and AM43x is DT only boot. This additionally helps not to
add context register offset for each hwmod.

Signed-off-by: Ambresh K <ambresh@ti.com>
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Acked-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/omap_hwmod.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 1c217e89deb9..e3f0ecaf87dd 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -4144,6 +4144,14 @@ void __init omap_hwmod_init(void)
 		soc_ops.init_clkdm = _init_clkdm;
 		soc_ops.update_context_lost = _omap4_update_context_lost;
 		soc_ops.get_context_lost = _omap4_get_context_lost;
+	} else if (soc_is_am43xx()) {
+		soc_ops.enable_module = _omap4_enable_module;
+		soc_ops.disable_module = _omap4_disable_module;
+		soc_ops.wait_target_ready = _omap4_wait_target_ready;
+		soc_ops.assert_hardreset = _omap4_assert_hardreset;
+		soc_ops.deassert_hardreset = _omap4_deassert_hardreset;
+		soc_ops.is_hardreset_asserted = _omap4_is_hardreset_asserted;
+		soc_ops.init_clkdm = _init_clkdm;
 	} else if (soc_is_am33xx()) {
 		soc_ops.enable_module = _am33xx_enable_module;
 		soc_ops.disable_module = _am33xx_disable_module;
-- 
cgit 


From d9df6e1e1c6adc1e44960d5732f715315bb75af5 Mon Sep 17 00:00:00 2001
From: Afzal Mohammed <afzal@ti.com>
Date: Sat, 12 Oct 2013 15:46:28 +0530
Subject: ARM: OMAP2+: AM43x: PRCM kbuild

Build AM43x power domain, clock domain and hwmod data.

Many of AM43x IP's and interconnects are similar as that in AM335x,
hence AM335x hwmod data is being reused with necessary changes.

Earlier the plan was to reuse AM335x specific PRCM code, but as AM43x
PRCM register layout is much similar to OMAP4/5, AM335x PRCM is
divorced and instead married with OMAP4/5 PRCM for AM43x.

Signed-off-by: Afzal Mohammed <afzal@ti.com>
Acked-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/Makefile | 7 ++++++-
 arch/arm/mach-omap2/cm33xx.h | 2 +-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 07464947d99e..cb7b527d61bd 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -112,13 +112,13 @@ obj-$(CONFIG_ARCH_OMAP2)		+= prm2xxx_3xxx.o prm2xxx.o cm2xxx.o
 obj-$(CONFIG_ARCH_OMAP3)		+= prm2xxx_3xxx.o prm3xxx.o cm3xxx.o
 obj-$(CONFIG_ARCH_OMAP3)		+= vc3xxx_data.o vp3xxx_data.o
 obj-$(CONFIG_SOC_AM33XX)		+= prm33xx.o cm33xx.o
-obj-$(CONFIG_SOC_AM43XX)		+= prm33xx.o cm33xx.o
 omap-prcm-4-5-common			=  cminst44xx.o cm44xx.o prm44xx.o \
 					   prcm_mpu44xx.o prminst44xx.o \
 					   vc44xx_data.o vp44xx_data.o
 obj-$(CONFIG_ARCH_OMAP4)		+= $(omap-prcm-4-5-common)
 obj-$(CONFIG_SOC_OMAP5)			+= $(omap-prcm-4-5-common)
 obj-$(CONFIG_SOC_DRA7XX)		+= $(omap-prcm-4-5-common)
+obj-$(CONFIG_SOC_AM43XX)		+= $(omap-prcm-4-5-common)
 
 # OMAP voltage domains
 voltagedomain-common			:= voltage.o vc.o vp.o
@@ -146,6 +146,7 @@ obj-$(CONFIG_ARCH_OMAP4)		+= powerdomains44xx_data.o
 obj-$(CONFIG_SOC_AM33XX)		+= $(powerdomain-common)
 obj-$(CONFIG_SOC_AM33XX)		+= powerdomains33xx_data.o
 obj-$(CONFIG_SOC_AM43XX)		+= $(powerdomain-common)
+obj-$(CONFIG_SOC_AM43XX)		+= powerdomains43xx_data.o
 obj-$(CONFIG_SOC_OMAP5)			+= $(powerdomain-common)
 obj-$(CONFIG_SOC_OMAP5)			+= powerdomains54xx_data.o
 obj-$(CONFIG_SOC_DRA7XX)		+= $(powerdomain-common)
@@ -165,6 +166,7 @@ obj-$(CONFIG_ARCH_OMAP4)		+= clockdomains44xx_data.o
 obj-$(CONFIG_SOC_AM33XX)		+= $(clockdomain-common)
 obj-$(CONFIG_SOC_AM33XX)		+= clockdomains33xx_data.o
 obj-$(CONFIG_SOC_AM43XX)		+= $(clockdomain-common)
+obj-$(CONFIG_SOC_AM43XX)		+= clockdomains43xx_data.o
 obj-$(CONFIG_SOC_OMAP5)			+= $(clockdomain-common)
 obj-$(CONFIG_SOC_OMAP5)			+= clockdomains54xx_data.o
 obj-$(CONFIG_SOC_DRA7XX)		+= $(clockdomain-common)
@@ -212,6 +214,9 @@ obj-$(CONFIG_ARCH_OMAP3)		+= omap_hwmod_3xxx_data.o
 obj-$(CONFIG_SOC_AM33XX)		+= omap_hwmod_33xx_data.o
 obj-$(CONFIG_SOC_AM33XX)		+= omap_hwmod_33xx_43xx_interconnect_data.o
 obj-$(CONFIG_SOC_AM33XX)		+= omap_hwmod_33xx_43xx_ipblock_data.o
+obj-$(CONFIG_SOC_AM43XX)		+= omap_hwmod_43xx_data.o
+obj-$(CONFIG_SOC_AM43XX)		+= omap_hwmod_33xx_43xx_interconnect_data.o
+obj-$(CONFIG_SOC_AM43XX)		+= omap_hwmod_33xx_43xx_ipblock_data.o
 obj-$(CONFIG_ARCH_OMAP4)		+= omap_hwmod_44xx_data.o
 obj-$(CONFIG_SOC_OMAP5)			+= omap_hwmod_54xx_data.o
 obj-$(CONFIG_SOC_DRA7XX)		+= omap_hwmod_7xx_data.o
diff --git a/arch/arm/mach-omap2/cm33xx.h b/arch/arm/mach-omap2/cm33xx.h
index 757320b7c0b3..cfb8891b0c0e 100644
--- a/arch/arm/mach-omap2/cm33xx.h
+++ b/arch/arm/mach-omap2/cm33xx.h
@@ -383,7 +383,7 @@ void am33xx_cm_clkdm_disable_hwsup(u16 inst, u16 cdoffs);
 void am33xx_cm_clkdm_force_sleep(u16 inst, u16 cdoffs);
 void am33xx_cm_clkdm_force_wakeup(u16 inst, u16 cdoffs);
 
-#if defined(CONFIG_SOC_AM33XX) || defined(CONFIG_SOC_AM43XX)
+#ifdef CONFIG_SOC_AM33XX
 extern int am33xx_cm_wait_module_idle(u16 inst, s16 cdoffs,
 					u16 clkctrl_offs);
 extern void am33xx_cm_module_enable(u8 mode, u16 inst, s16 cdoffs,
-- 
cgit 


From 8835cf6e47cb2ff3d518305d0a9d9dc4ab10dedc Mon Sep 17 00:00:00 2001
From: Ambresh K <ambresh@ti.com>
Date: Sat, 12 Oct 2013 15:46:37 +0530
Subject: ARM: OMAP2+: AM43x PRCM init

Initialise AM43x HWMOD, powerdomains and clockdomains.

Signed-off-by: Ambresh K <ambresh@ti.com>
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Acked-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/io.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index ff2113ce4014..c90f64765a3d 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -594,7 +594,13 @@ void __init am43xx_init_early(void)
 				  NULL);
 	omap2_set_globals_prm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE));
 	omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE), NULL);
+	omap_prm_base_init();
+	omap_cm_base_init();
 	omap3xxx_check_revision();
+	am43xx_powerdomains_init();
+	am43xx_clockdomains_init();
+	am43xx_hwmod_init();
+	omap_hwmod_init_postsetup();
 }
 #endif
 
-- 
cgit 


From 732e4c8db99cb3125bd6865794ec8e3a998c4d6e Mon Sep 17 00:00:00 2001
From: "durgadoss.r@intel.com" <durgadoss.r@intel.com>
Date: Wed, 2 Oct 2013 00:08:00 +0530
Subject: Thermal: Check for validity before doing kfree

The thermal_release function is called whenever
any device belonging to 'thermal' class unregisters.
This function performs kfree(cdev) without any check.
In cases where there are more device registrations
other than just 'thermal_zone' and 'cooling_device'
this might accidently free memory allocated them
silently; and cause memory errors.

This patch changes this behavior by doing
kfree(cdev) only when the device pointer belongs
to a real cdev i.e. cooling_device.

Signed-off-by: Durgadoss R <durgadoss.r@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
 drivers/thermal/thermal_core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 4962a6aaf295..db99b334712a 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -1038,7 +1038,8 @@ static void thermal_release(struct device *dev)
 		     sizeof("thermal_zone") - 1)) {
 		tz = to_thermal_zone(dev);
 		kfree(tz);
-	} else {
+	} else if(!strncmp(dev_name(dev), "cooling_device",
+			sizeof("cooling_device") - 1)){
 		cdev = to_cooling_device(dev);
 		kfree(cdev);
 	}
-- 
cgit 


From 6d9d41e57440e32a3400f37aa05ef7a1a09ced64 Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Wed, 2 Oct 2013 14:22:28 -0700
Subject: KVM: Move gfn_to_index to x86 specific code

The gfn_to_index function relies on huge page defines which either may
not make sense on systems that don't support huge pages or are defined
in an unconvenient way for other architectures.  Since this is
x86-specific, move the function to arch/x86/include/asm/kvm_host.h.

Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/include/asm/kvm_host.h | 7 +++++++
 include/linux/kvm_host.h        | 7 -------
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 8dd143a65d60..5cbf3166257c 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -79,6 +79,13 @@
 #define KVM_HPAGE_MASK(x)	(~(KVM_HPAGE_SIZE(x) - 1))
 #define KVM_PAGES_PER_HPAGE(x)	(KVM_HPAGE_SIZE(x) / PAGE_SIZE)
 
+static inline gfn_t gfn_to_index(gfn_t gfn, gfn_t base_gfn, int level)
+{
+	/* KVM_HPAGE_GFN_SHIFT(PT_PAGE_TABLE_LEVEL) must be 0. */
+	return (gfn >> KVM_HPAGE_GFN_SHIFT(level)) -
+		(base_gfn >> KVM_HPAGE_GFN_SHIFT(level));
+}
+
 #define SELECTOR_TI_MASK (1 << 2)
 #define SELECTOR_RPL_MASK 0x03
 
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 7c961e1e9270..f6dccde755f6 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -841,13 +841,6 @@ static inline int memslot_id(struct kvm *kvm, gfn_t gfn)
 	return gfn_to_memslot(kvm, gfn)->id;
 }
 
-static inline gfn_t gfn_to_index(gfn_t gfn, gfn_t base_gfn, int level)
-{
-	/* KVM_HPAGE_GFN_SHIFT(PT_PAGE_TABLE_LEVEL) must be 0. */
-	return (gfn >> KVM_HPAGE_GFN_SHIFT(level)) -
-		(base_gfn >> KVM_HPAGE_GFN_SHIFT(level));
-}
-
 static inline gfn_t
 hva_to_gfn_memslot(unsigned long hva, struct kvm_memory_slot *slot)
 {
-- 
cgit 


From dc6f6763dfeaf2dfec906bb78875dcea162accd9 Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Wed, 2 Oct 2013 14:22:29 -0700
Subject: KVM: ARM: Get rid of KVM_HPAGE defines

The KVM_HPAGE_DEFINES are a little artificial on ARM, since the huge
page size is statically defined at compile time and there is only a
single huge page size.

Now when the main kvm code relying on these defines has been moved to
the x86 specific part of the world, we can get rid of these.

Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/arm/include/asm/kvm_host.h | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
index 7d22517d8071..e45a74b62ac1 100644
--- a/arch/arm/include/asm/kvm_host.h
+++ b/arch/arm/include/asm/kvm_host.h
@@ -38,11 +38,6 @@
 
 #define KVM_VCPU_MAX_FEATURES 1
 
-/* We don't currently support large pages. */
-#define KVM_HPAGE_GFN_SHIFT(x)	0
-#define KVM_NR_PAGE_SIZES	1
-#define KVM_PAGES_PER_HPAGE(x)	(1UL<<31)
-
 #include <kvm/arm_vgic.h>
 
 struct kvm_vcpu;
-- 
cgit 


From ef0cfe71c2b1710cd4ae747537e36c56f9a26ccf Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Wed, 2 Oct 2013 14:22:30 -0700
Subject: KVM: arm64: Get rid of KVM_HPAGE defines

Now when the main kvm code relying on these defines has been moved to
the x86 specific part of the world, we can get rid of these.

Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/arm64/include/asm/kvm_host.h | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 0859a4ddd1e7..54c064f622aa 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -36,11 +36,6 @@
 
 #define KVM_VCPU_MAX_FEATURES 2
 
-/* We don't currently support large pages. */
-#define KVM_HPAGE_GFN_SHIFT(x)	0
-#define KVM_NR_PAGE_SIZES	1
-#define KVM_PAGES_PER_HPAGE(x)	(1UL<<31)
-
 struct kvm_vcpu;
 int kvm_target_cpu(void);
 int kvm_reset_vcpu(struct kvm_vcpu *vcpu);
-- 
cgit 


From 015e0513a07467b34bb3a466ec5f5156765770dc Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Wed, 2 Oct 2013 14:22:31 -0700
Subject: KVM: mips: Get rid of KVM_HPAGE defines

Now when the main kvm code relying on these defines has been moved to
the x86 specific part of the world, we can get rid of these.

Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/mips/include/asm/kvm_host.h | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/mips/include/asm/kvm_host.h b/arch/mips/include/asm/kvm_host.h
index 4d6fa0bf1305..32966969f2f9 100644
--- a/arch/mips/include/asm/kvm_host.h
+++ b/arch/mips/include/asm/kvm_host.h
@@ -27,13 +27,6 @@
 
 #define KVM_COALESCED_MMIO_PAGE_OFFSET 1
 
-/* Don't support huge pages */
-#define KVM_HPAGE_GFN_SHIFT(x)	0
-
-/* We don't currently support large pages. */
-#define KVM_NR_PAGE_SIZES	1
-#define KVM_PAGES_PER_HPAGE(x)	1
-
 
 
 /* Special address that contains the comm page, used for reducing # of traps */
-- 
cgit 


From bbba7938d181bdd0b02a5fbbc7b7391b1d8f44e7 Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Wed, 2 Oct 2013 14:22:32 -0700
Subject: KVM: ia64: Get rid of KVM_HPAGE defines

Now when the main kvm code relying on these defines has been moved to
the x86 specific part of the world, we can get rid of these.

Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/ia64/include/asm/kvm_host.h | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/ia64/include/asm/kvm_host.h b/arch/ia64/include/asm/kvm_host.h
index 989dd3fe8de1..95a3ff93777c 100644
--- a/arch/ia64/include/asm/kvm_host.h
+++ b/arch/ia64/include/asm/kvm_host.h
@@ -234,10 +234,6 @@ struct kvm_vm_data {
 #define KVM_REQ_PTC_G		32
 #define KVM_REQ_RESUME		33
 
-#define KVM_HPAGE_GFN_SHIFT(x)	0
-#define KVM_NR_PAGE_SIZES	1
-#define KVM_PAGES_PER_HPAGE(x)	1
-
 struct kvm;
 struct kvm_vcpu;
 
-- 
cgit 


From 2c5350e934501f1af8010c608d8dbf72ad25fdc6 Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Wed, 2 Oct 2013 14:22:33 -0700
Subject: KVM: PPC: Get rid of KVM_HPAGE defines

Now when the main kvm code relying on these defines has been moved to
the x86 specific part of the world, we can get rid of these.

Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/powerpc/include/asm/kvm_host.h | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 33283532e9d8..0866230b7c2d 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -63,11 +63,6 @@ extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
 
 #endif
 
-/* We don't currently support large pages. */
-#define KVM_HPAGE_GFN_SHIFT(x)	0
-#define KVM_NR_PAGE_SIZES	1
-#define KVM_PAGES_PER_HPAGE(x)	(1UL<<31)
-
 #define HPTEG_CACHE_NUM			(1 << 15)
 #define HPTEG_HASH_BITS_PTE		13
 #define HPTEG_HASH_BITS_PTE_LONG	12
-- 
cgit 


From a7efdf6bec34f1a693a926ebd08de6ba6e700dff Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Sun, 13 Oct 2013 20:35:58 +0100
Subject: KVM: s390: Get rid of KVM_HPAGE defines

Now when the main kvm code relying on these defines has been moved to
the x86 specific part of the world, we can get rid of these.

Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/s390/include/asm/kvm_host.h | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/arch/s390/include/asm/kvm_host.h b/arch/s390/include/asm/kvm_host.h
index 6a0e27be6305..d5bc3750616e 100644
--- a/arch/s390/include/asm/kvm_host.h
+++ b/arch/s390/include/asm/kvm_host.h
@@ -38,13 +38,6 @@ struct sca_block {
 	struct sca_entry cpu[64];
 } __attribute__((packed));
 
-#define KVM_NR_PAGE_SIZES 2
-#define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 8)
-#define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x))
-#define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x))
-#define KVM_HPAGE_MASK(x)	(~(KVM_HPAGE_SIZE(x) - 1))
-#define KVM_PAGES_PER_HPAGE(x)	(KVM_HPAGE_SIZE(x) / PAGE_SIZE)
-
 #define CPUSTAT_STOPPED    0x80000000
 #define CPUSTAT_WAIT       0x10000000
 #define CPUSTAT_ECALL_PEND 0x08000000
-- 
cgit 


From ed1b7732868035990f07aeb532b1d86272ea909e Mon Sep 17 00:00:00 2001
From: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Date: Sun, 13 Oct 2013 23:06:15 +0530
Subject: sched/fair: Fix trivial typos in comments

 - 'load_icx' => 'load_idx'
 - 'calculcate_imbalance' => 'calculate_imbalance'

Signed-off-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Cc: peterz@infradead.org
Link: http://lkml.kernel.org/r/1381685775-3544-1-git-send-email-kamalesh@linux.vnet.ibm.com
[ Also, don't capitalize 'idle' unnecessarily. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 82746796578d..4aa0b10889d0 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5206,7 +5206,7 @@ static inline void init_sd_lb_stats(struct sd_lb_stats *sds)
 /**
  * get_sd_load_idx - Obtain the load index for a given sched domain.
  * @sd: The sched_domain whose load_idx is to be obtained.
- * @idle: The Idle status of the CPU for whose sd load_icx is obtained.
+ * @idle: The idle status of the CPU for whose sd load_idx is obtained.
  *
  * Return: The load index.
  */
@@ -5412,7 +5412,7 @@ fix_small_capacity(struct sched_domain *sd, struct sched_group *group)
  * moving tasks due to affinity constraints.
  *
  * When this is so detected; this group becomes a candidate for busiest; see
- * update_sd_pick_busiest(). And calculcate_imbalance() and
+ * update_sd_pick_busiest(). And calculate_imbalance() and
  * find_busiest_group() avoid some of the usual balance conditions to allow it
  * to create an effective group imbalance.
  *
-- 
cgit 


From 45cf70c0dc4ae63756ba5107060e51f3674c90fd Mon Sep 17 00:00:00 2001
From: Bo Shen <voice.shen@atmel.com>
Date: Mon, 14 Oct 2013 13:38:29 +0800
Subject: ARM: at91: add at91sam9n12 ssc clock in look up table

Add at91sam9n12 ssc clock in look up table

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
 arch/arm/mach-at91/at91sam9n12.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-at91/at91sam9n12.c b/arch/arm/mach-at91/at91sam9n12.c
index c7d670d11802..2d895a297739 100644
--- a/arch/arm/mach-at91/at91sam9n12.c
+++ b/arch/arm/mach-at91/at91sam9n12.c
@@ -169,6 +169,7 @@ static struct clk_lookup periph_clocks_lookups[] = {
 	CLKDEV_CON_DEV_ID("t0_clk", "f8008000.timer", &tcb_clk),
 	CLKDEV_CON_DEV_ID("t0_clk", "f800c000.timer", &tcb_clk),
 	CLKDEV_CON_DEV_ID("mci_clk", "f0008000.mmc", &mmc_clk),
+	CLKDEV_CON_DEV_ID(NULL, "f0010000.ssc", &ssc_clk),
 	CLKDEV_CON_DEV_ID("dma_clk", "ffffec00.dma-controller", &dma_clk),
 	CLKDEV_CON_DEV_ID(NULL, "f8010000.i2c", &twi0_clk),
 	CLKDEV_CON_DEV_ID(NULL, "f8014000.i2c", &twi1_clk),
-- 
cgit 


From ffcd77e27991dee0531903468d2b103c128aec3e Mon Sep 17 00:00:00 2001
From: Bo Shen <voice.shen@atmel.com>
Date: Mon, 14 Oct 2013 13:38:30 +0800
Subject: ARM: at91: add ssc dma parameter for at91sam9n12

Add ssc dma parameter for at91sam9n12

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
 arch/arm/boot/dts/at91sam9n12.dtsi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/boot/dts/at91sam9n12.dtsi b/arch/arm/boot/dts/at91sam9n12.dtsi
index 9fb7ffd32af2..6224f9fe2f2b 100644
--- a/arch/arm/boot/dts/at91sam9n12.dtsi
+++ b/arch/arm/boot/dts/at91sam9n12.dtsi
@@ -437,6 +437,9 @@
 				compatible = "atmel,at91sam9g45-ssc";
 				reg = <0xf0010000 0x4000>;
 				interrupts = <28 IRQ_TYPE_LEVEL_HIGH 5>;
+				dmas = <&dma 0 AT91_DMA_CFG_PER_ID(21)>,
+				       <&dma 0 AT91_DMA_CFG_PER_ID(22)>;
+				dma-names = "tx", "rx";
 				pinctrl-names = "default";
 				pinctrl-0 = <&pinctrl_ssc0_tx &pinctrl_ssc0_rx>;
 				status = "disabled";
-- 
cgit 


From e6f79916606695b89bf3c7deee1307478b8d6b59 Mon Sep 17 00:00:00 2001
From: Bo Shen <voice.shen@atmel.com>
Date: Mon, 14 Oct 2013 13:38:31 +0800
Subject: ARM: at91: enable wm8904 on at91sam9n12ek board

Enable wm8904 codec on at91sam9n12ek board, which is connect
to i2c0 bus with 0x1a as address.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
 arch/arm/boot/dts/at91sam9n12ek.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/at91sam9n12ek.dts b/arch/arm/boot/dts/at91sam9n12ek.dts
index 27a9352b9d7a..1ba8defae672 100644
--- a/arch/arm/boot/dts/at91sam9n12ek.dts
+++ b/arch/arm/boot/dts/at91sam9n12ek.dts
@@ -41,6 +41,11 @@
 			i2c0: i2c@f8010000 {
 				status = "okay";
 
+				wm8904: codec@1a {
+					compatible = "wm8904";
+					reg = <0x1a>;
+				};
+
 				qt1070: keyboard@1b {
 					compatible = "qt1070";
 					reg = <0x1b>;
-- 
cgit 


From 476090661a03f1ee1dcab9a3b669bfeb57875d0c Mon Sep 17 00:00:00 2001
From: Bo Shen <voice.shen@atmel.com>
Date: Mon, 14 Oct 2013 13:38:32 +0800
Subject: ARM: at91: enable ssc on at91sam9n12ek board

Enable ssc on at91sam9n12ek board

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
 arch/arm/boot/dts/at91sam9n12ek.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/at91sam9n12ek.dts b/arch/arm/boot/dts/at91sam9n12ek.dts
index 1ba8defae672..391c5322248e 100644
--- a/arch/arm/boot/dts/at91sam9n12ek.dts
+++ b/arch/arm/boot/dts/at91sam9n12ek.dts
@@ -38,6 +38,10 @@
 				status = "okay";
 			};
 
+			ssc0: ssc@f0010000 {
+				status = "okay";
+			};
+
 			i2c0: i2c@f8010000 {
 				status = "okay";
 
-- 
cgit 


From 551a409ca6b6285367669883186f84ea3bc88ecf Mon Sep 17 00:00:00 2001
From: Bo Shen <voice.shen@atmel.com>
Date: Mon, 14 Oct 2013 13:38:33 +0800
Subject: ARM: at91: add sound support on at91sam9n12ek board

Add sound support on at91sam9n12ek board with wm8904 as codec.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
 arch/arm/boot/dts/at91sam9n12ek.dts | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/arch/arm/boot/dts/at91sam9n12ek.dts b/arch/arm/boot/dts/at91sam9n12ek.dts
index 391c5322248e..e9487f6f0166 100644
--- a/arch/arm/boot/dts/at91sam9n12ek.dts
+++ b/arch/arm/boot/dts/at91sam9n12ek.dts
@@ -91,6 +91,13 @@
 							<AT91_PIOA 2 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>;
 					};
 				};
+
+				sound {
+					pinctrl_pck0_as_audio_mck: pck0_as_audio_mck {
+						atmel,pins =
+							<AT91_PIOB 10 AT91_PERIPH_B AT91_PINCTRL_NONE>;
+					};
+				};
 			};
 
 			spi0: spi@f0000000 {
@@ -151,4 +158,22 @@
 			gpio-key,wakeup;
 		};
 	};
+
+	sound {
+		compatible = "atmel,asoc-wm8904";
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_pck0_as_audio_mck>;
+
+		atmel,model = "wm8904 @ AT91SAM9N12";
+		atmel,audio-routing =
+			"Headphone Jack", "HPOUTL",
+			"Headphone Jack", "HPOUTR",
+			"IN2L", "Line In Jack",
+			"IN2R", "Line In Jack",
+			"Mic", "MICBIAS",
+			"IN1L", "Mic";
+
+		atmel,ssc-controller = <&ssc0>;
+		atmel,audio-codec = <&wm8904>;
+	};
 };
-- 
cgit 


From 1d198f26c98e6501659d741d530f7b65e4b7aec3 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 8 Oct 2013 15:55:45 -0700
Subject: sound: Remove unnecessary semicolons

These aren't necessary after switch and if blocks.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/oss/sb_ess.c              | 2 +-
 sound/pci/au88x0/au88x0_pcm.c   | 2 +-
 sound/soc/atmel/atmel_ssc_dai.c | 2 +-
 sound/soc/codecs/ak4641.c       | 2 +-
 sound/soc/codecs/mc13783.c      | 2 +-
 sound/soc/codecs/tas5086.c      | 2 +-
 sound/soc/codecs/twl6040.c      | 4 ++--
 sound/soc/fsl/fsl_spdif.c       | 4 ++--
 sound/soc/tegra/tegra20_i2s.c   | 6 +++---
 sound/soc/tegra/tegra20_spdif.c | 6 +++---
 sound/soc/tegra/tegra30_ahub.c  | 4 ++--
 sound/soc/tegra/tegra30_i2s.c   | 4 ++--
 12 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/sound/oss/sb_ess.c b/sound/oss/sb_ess.c
index c0be085e4a20..0e7254bde4c2 100644
--- a/sound/oss/sb_ess.c
+++ b/sound/oss/sb_ess.c
@@ -1544,7 +1544,7 @@ static int ess_has_rec_mixer (int submodel)
 		return 1;
 	default:
 		return 0;
-	};
+	}
 };
 
 #ifdef FKS_LOGGING
diff --git a/sound/pci/au88x0/au88x0_pcm.c b/sound/pci/au88x0/au88x0_pcm.c
index b46dc9b24dbd..9fb03b4ea925 100644
--- a/sound/pci/au88x0/au88x0_pcm.c
+++ b/sound/pci/au88x0/au88x0_pcm.c
@@ -671,7 +671,7 @@ static int snd_vortex_new_pcm(vortex_t *chip, int idx, int nr)
 			return err;
 		break;
 #endif
-	};
+	}
 
 	if (VORTEX_PCM_TYPE(pcm) == VORTEX_PCM_SPDIF) {
 		for (i = 0; i < ARRAY_SIZE(snd_vortex_mixer_spdif); i++) {
diff --git a/sound/soc/atmel/atmel_ssc_dai.c b/sound/soc/atmel/atmel_ssc_dai.c
index bb53dea85b17..8697cedccd21 100644
--- a/sound/soc/atmel/atmel_ssc_dai.c
+++ b/sound/soc/atmel/atmel_ssc_dai.c
@@ -777,7 +777,7 @@ static int asoc_ssc_init(struct device *dev)
 	if (ret) {
 		dev_err(dev, "Could not register PCM: %d\n", ret);
 		goto err_unregister_dai;
-	};
+	}
 
 	return 0;
 
diff --git a/sound/soc/codecs/ak4641.c b/sound/soc/codecs/ak4641.c
index 5f9af1fb76e8..49cc5f6d6dba 100644
--- a/sound/soc/codecs/ak4641.c
+++ b/sound/soc/codecs/ak4641.c
@@ -328,7 +328,7 @@ static int ak4641_i2s_hw_params(struct snd_pcm_substream *substream,
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 		ak4641->playback_fs = rate;
 		ak4641_set_deemph(codec);
-	};
+	}
 
 	return 0;
 }
diff --git a/sound/soc/codecs/mc13783.c b/sound/soc/codecs/mc13783.c
index ea141e1d6f28..154433084708 100644
--- a/sound/soc/codecs/mc13783.c
+++ b/sound/soc/codecs/mc13783.c
@@ -382,7 +382,7 @@ static int mc13783_set_tdm_slot_dac(struct snd_soc_dai *dai,
 		break;
 	default:
 		return -EINVAL;
-	};
+	}
 
 	snd_soc_update_bits(codec, MC13783_SSI_NETWORK, mask, val);
 
diff --git a/sound/soc/codecs/tas5086.c b/sound/soc/codecs/tas5086.c
index 6d31d88f7204..e29cdb7ee232 100644
--- a/sound/soc/codecs/tas5086.c
+++ b/sound/soc/codecs/tas5086.c
@@ -429,7 +429,7 @@ static int tas5086_hw_params(struct snd_pcm_substream *substream,
 	default:
 		dev_err(codec->dev, "Invalid bit width\n");
 		return -EINVAL;
-	};
+	}
 
 	ret = regmap_write(priv->regmap, TAS5086_SERIAL_DATA_IF, val);
 	if (ret < 0)
diff --git a/sound/soc/codecs/twl6040.c b/sound/soc/codecs/twl6040.c
index 3c79dbb6c323..35059a242fa4 100644
--- a/sound/soc/codecs/twl6040.c
+++ b/sound/soc/codecs/twl6040.c
@@ -246,7 +246,7 @@ static bool twl6040_is_path_unmuted(struct snd_soc_codec *codec,
 		return priv->dl2_unmuted;
 	default:
 		return 1;
-	};
+	}
 }
 
 /*
@@ -1100,7 +1100,7 @@ static void twl6040_mute_path(struct snd_soc_codec *codec, enum twl6040_dai_id i
 		break;
 	default:
 		break;
-	};
+	}
 }
 
 static int twl6040_digital_mute(struct snd_soc_dai *dai, int mute)
diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index 3920c3e849ce..c0fea02114e1 100644
--- a/sound/soc/fsl/fsl_spdif.c
+++ b/sound/soc/fsl/fsl_spdif.c
@@ -963,7 +963,7 @@ static bool fsl_spdif_readable_reg(struct device *dev, unsigned int reg)
 		return true;
 	default:
 		return false;
-	};
+	}
 }
 
 static bool fsl_spdif_writeable_reg(struct device *dev, unsigned int reg)
@@ -982,7 +982,7 @@ static bool fsl_spdif_writeable_reg(struct device *dev, unsigned int reg)
 		return true;
 	default:
 		return false;
-	};
+	}
 }
 
 static const struct regmap_config fsl_spdif_regmap_config = {
diff --git a/sound/soc/tegra/tegra20_i2s.c b/sound/soc/tegra/tegra20_i2s.c
index 52af7f6fb37f..364bf6a907e1 100644
--- a/sound/soc/tegra/tegra20_i2s.c
+++ b/sound/soc/tegra/tegra20_i2s.c
@@ -297,7 +297,7 @@ static bool tegra20_i2s_wr_rd_reg(struct device *dev, unsigned int reg)
 		return true;
 	default:
 		return false;
-	};
+	}
 }
 
 static bool tegra20_i2s_volatile_reg(struct device *dev, unsigned int reg)
@@ -310,7 +310,7 @@ static bool tegra20_i2s_volatile_reg(struct device *dev, unsigned int reg)
 		return true;
 	default:
 		return false;
-	};
+	}
 }
 
 static bool tegra20_i2s_precious_reg(struct device *dev, unsigned int reg)
@@ -321,7 +321,7 @@ static bool tegra20_i2s_precious_reg(struct device *dev, unsigned int reg)
 		return true;
 	default:
 		return false;
-	};
+	}
 }
 
 static const struct regmap_config tegra20_i2s_regmap_config = {
diff --git a/sound/soc/tegra/tegra20_spdif.c b/sound/soc/tegra/tegra20_spdif.c
index 551b3c93ce93..08bc6931c7c7 100644
--- a/sound/soc/tegra/tegra20_spdif.c
+++ b/sound/soc/tegra/tegra20_spdif.c
@@ -213,7 +213,7 @@ static bool tegra20_spdif_wr_rd_reg(struct device *dev, unsigned int reg)
 		return true;
 	default:
 		return false;
-	};
+	}
 }
 
 static bool tegra20_spdif_volatile_reg(struct device *dev, unsigned int reg)
@@ -234,7 +234,7 @@ static bool tegra20_spdif_volatile_reg(struct device *dev, unsigned int reg)
 		return true;
 	default:
 		return false;
-	};
+	}
 }
 
 static bool tegra20_spdif_precious_reg(struct device *dev, unsigned int reg)
@@ -247,7 +247,7 @@ static bool tegra20_spdif_precious_reg(struct device *dev, unsigned int reg)
 		return true;
 	default:
 		return false;
-	};
+	}
 }
 
 static const struct regmap_config tegra20_spdif_regmap_config = {
diff --git a/sound/soc/tegra/tegra30_ahub.c b/sound/soc/tegra/tegra30_ahub.c
index d554d46d08b5..805b1f399dc3 100644
--- a/sound/soc/tegra/tegra30_ahub.c
+++ b/sound/soc/tegra/tegra30_ahub.c
@@ -346,7 +346,7 @@ static bool tegra30_ahub_apbif_wr_rd_reg(struct device *dev, unsigned int reg)
 		return true;
 	default:
 		break;
-	};
+	}
 
 	if (REG_IN_ARRAY(reg, CHANNEL_CTRL) ||
 	    REG_IN_ARRAY(reg, CHANNEL_CLEAR) ||
@@ -381,7 +381,7 @@ static bool tegra30_ahub_apbif_volatile_reg(struct device *dev,
 		return true;
 	default:
 		break;
-	};
+	}
 
 	if (REG_IN_ARRAY(reg, CHANNEL_CLEAR) ||
 	    REG_IN_ARRAY(reg, CHANNEL_STATUS) ||
diff --git a/sound/soc/tegra/tegra30_i2s.c b/sound/soc/tegra/tegra30_i2s.c
index 47565fd04505..bd71145f3639 100644
--- a/sound/soc/tegra/tegra30_i2s.c
+++ b/sound/soc/tegra/tegra30_i2s.c
@@ -369,7 +369,7 @@ static bool tegra30_i2s_wr_rd_reg(struct device *dev, unsigned int reg)
 		return true;
 	default:
 		return false;
-	};
+	}
 }
 
 static bool tegra30_i2s_volatile_reg(struct device *dev, unsigned int reg)
@@ -382,7 +382,7 @@ static bool tegra30_i2s_volatile_reg(struct device *dev, unsigned int reg)
 		return true;
 	default:
 		return false;
-	};
+	}
 }
 
 static const struct regmap_config tegra30_i2s_regmap_config = {
-- 
cgit 


From b5c2e0abe1d0ffc367d0c1a42e45c91c079838d3 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 22 Aug 2013 13:07:17 -0300
Subject: [media] snd_tea575x: precedence bug in fmr2_tea575x_get_pins()

The "|" operation has higher precedence that "?:" so this couldn't
return both flags set at once as intended.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/radio/radio-sf16fmr2.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/radio/radio-sf16fmr2.c b/drivers/media/radio/radio-sf16fmr2.c
index f1e3714b5f16..620c4907e701 100644
--- a/drivers/media/radio/radio-sf16fmr2.c
+++ b/drivers/media/radio/radio-sf16fmr2.c
@@ -74,8 +74,8 @@ static u8 fmr2_tea575x_get_pins(struct snd_tea575x *tea)
 	struct fmr2 *fmr2 = tea->private_data;
 	u8 bits = inb(fmr2->io);
 
-	return  (bits & STR_DATA) ? TEA575X_DATA : 0 |
-		(bits & STR_MOST) ? TEA575X_MOST : 0;
+	return  ((bits & STR_DATA) ? TEA575X_DATA : 0) |
+		((bits & STR_MOST) ? TEA575X_MOST : 0);
 }
 
 static void fmr2_tea575x_set_direction(struct snd_tea575x *tea, bool output)
-- 
cgit 


From 795aa6ef6a1aba99050735eadd0c2341b789b53b Mon Sep 17 00:00:00 2001
From: Patrick McHardy <kaber@trash.net>
Date: Thu, 10 Oct 2013 09:21:55 +0200
Subject: netfilter: pass hook ops to hookfn

Pass the hook ops to the hookfn to allow for generic hook
functions. This change is required by nf_tables.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/linux/netfilter.h                      |  3 +-
 net/bridge/br_netfilter.c                      | 22 +++++++++-----
 net/bridge/netfilter/ebtable_filter.c          | 16 ++++++----
 net/bridge/netfilter/ebtable_nat.c             | 16 ++++++----
 net/decnet/netfilter/dn_rtmsg.c                |  2 +-
 net/ipv4/netfilter/arptable_filter.c           |  5 +--
 net/ipv4/netfilter/ipt_CLUSTERIP.c             |  2 +-
 net/ipv4/netfilter/ipt_SYNPROXY.c              |  2 +-
 net/ipv4/netfilter/iptable_filter.c            |  7 +++--
 net/ipv4/netfilter/iptable_mangle.c            | 10 +++---
 net/ipv4/netfilter/iptable_nat.c               | 26 ++++++++--------
 net/ipv4/netfilter/iptable_raw.c               |  6 ++--
 net/ipv4/netfilter/iptable_security.c          |  7 +++--
 net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c | 12 ++++----
 net/ipv4/netfilter/nf_defrag_ipv4.c            |  6 ++--
 net/ipv6/netfilter/ip6t_SYNPROXY.c             |  2 +-
 net/ipv6/netfilter/ip6table_filter.c           |  5 +--
 net/ipv6/netfilter/ip6table_mangle.c           | 10 +++---
 net/ipv6/netfilter/ip6table_nat.c              | 27 +++++++++--------
 net/ipv6/netfilter/ip6table_raw.c              |  5 +--
 net/ipv6/netfilter/ip6table_security.c         |  5 +--
 net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c | 14 +++++----
 net/ipv6/netfilter/nf_defrag_ipv6_hooks.c      |  6 ++--
 net/netfilter/core.c                           |  2 +-
 net/netfilter/ipvs/ip_vs_core.c                | 42 +++++++++++++-------------
 security/selinux/hooks.c                       | 10 +++---
 26 files changed, 148 insertions(+), 122 deletions(-)

diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index 61223c52414f..fef7e67f7101 100644
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -42,7 +42,8 @@ int netfilter_init(void);
 
 struct sk_buff;
 
-typedef unsigned int nf_hookfn(unsigned int hooknum,
+struct nf_hook_ops;
+typedef unsigned int nf_hookfn(const struct nf_hook_ops *ops,
 			       struct sk_buff *skb,
 			       const struct net_device *in,
 			       const struct net_device *out,
diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index f87736270eaa..878f008afefa 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -619,7 +619,7 @@ bad:
 
 /* Replicate the checks that IPv6 does on packet reception and pass the packet
  * to ip6tables, which doesn't support NAT, so things are fairly simple. */
-static unsigned int br_nf_pre_routing_ipv6(unsigned int hook,
+static unsigned int br_nf_pre_routing_ipv6(const struct nf_hook_ops *ops,
 					   struct sk_buff *skb,
 					   const struct net_device *in,
 					   const struct net_device *out,
@@ -669,7 +669,8 @@ static unsigned int br_nf_pre_routing_ipv6(unsigned int hook,
  * receiving device) to make netfilter happy, the REDIRECT
  * target in particular.  Save the original destination IP
  * address to be able to detect DNAT afterwards. */
-static unsigned int br_nf_pre_routing(unsigned int hook, struct sk_buff *skb,
+static unsigned int br_nf_pre_routing(const struct nf_hook_ops *ops,
+				      struct sk_buff *skb,
 				      const struct net_device *in,
 				      const struct net_device *out,
 				      int (*okfn)(struct sk_buff *))
@@ -691,7 +692,7 @@ static unsigned int br_nf_pre_routing(unsigned int hook, struct sk_buff *skb,
 			return NF_ACCEPT;
 
 		nf_bridge_pull_encap_header_rcsum(skb);
-		return br_nf_pre_routing_ipv6(hook, skb, in, out, okfn);
+		return br_nf_pre_routing_ipv6(ops, skb, in, out, okfn);
 	}
 
 	if (!brnf_call_iptables && !br->nf_call_iptables)
@@ -727,7 +728,8 @@ static unsigned int br_nf_pre_routing(unsigned int hook, struct sk_buff *skb,
  * took place when the packet entered the bridge), but we
  * register an IPv4 PRE_ROUTING 'sabotage' hook that will
  * prevent this from happening. */
-static unsigned int br_nf_local_in(unsigned int hook, struct sk_buff *skb,
+static unsigned int br_nf_local_in(const struct nf_hook_ops *ops,
+				   struct sk_buff *skb,
 				   const struct net_device *in,
 				   const struct net_device *out,
 				   int (*okfn)(struct sk_buff *))
@@ -765,7 +767,8 @@ static int br_nf_forward_finish(struct sk_buff *skb)
  * but we are still able to filter on the 'real' indev/outdev
  * because of the physdev module. For ARP, indev and outdev are the
  * bridge ports. */
-static unsigned int br_nf_forward_ip(unsigned int hook, struct sk_buff *skb,
+static unsigned int br_nf_forward_ip(const struct nf_hook_ops *ops,
+				     struct sk_buff *skb,
 				     const struct net_device *in,
 				     const struct net_device *out,
 				     int (*okfn)(struct sk_buff *))
@@ -818,7 +821,8 @@ static unsigned int br_nf_forward_ip(unsigned int hook, struct sk_buff *skb,
 	return NF_STOLEN;
 }
 
-static unsigned int br_nf_forward_arp(unsigned int hook, struct sk_buff *skb,
+static unsigned int br_nf_forward_arp(const struct nf_hook_ops *ops,
+				      struct sk_buff *skb,
 				      const struct net_device *in,
 				      const struct net_device *out,
 				      int (*okfn)(struct sk_buff *))
@@ -878,7 +882,8 @@ static int br_nf_dev_queue_xmit(struct sk_buff *skb)
 #endif
 
 /* PF_BRIDGE/POST_ROUTING ********************************************/
-static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff *skb,
+static unsigned int br_nf_post_routing(const struct nf_hook_ops *ops,
+				       struct sk_buff *skb,
 				       const struct net_device *in,
 				       const struct net_device *out,
 				       int (*okfn)(struct sk_buff *))
@@ -923,7 +928,8 @@ static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff *skb,
 /* IP/SABOTAGE *****************************************************/
 /* Don't hand locally destined packets to PF_INET(6)/PRE_ROUTING
  * for the second time. */
-static unsigned int ip_sabotage_in(unsigned int hook, struct sk_buff *skb,
+static unsigned int ip_sabotage_in(const struct nf_hook_ops *ops,
+				   struct sk_buff *skb,
 				   const struct net_device *in,
 				   const struct net_device *out,
 				   int (*okfn)(struct sk_buff *))
diff --git a/net/bridge/netfilter/ebtable_filter.c b/net/bridge/netfilter/ebtable_filter.c
index 94b2b700cff8..bb2da7b706e7 100644
--- a/net/bridge/netfilter/ebtable_filter.c
+++ b/net/bridge/netfilter/ebtable_filter.c
@@ -60,17 +60,21 @@ static const struct ebt_table frame_filter =
 };
 
 static unsigned int
-ebt_in_hook(unsigned int hook, struct sk_buff *skb, const struct net_device *in,
-   const struct net_device *out, int (*okfn)(struct sk_buff *))
+ebt_in_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
+	    const struct net_device *in, const struct net_device *out,
+	    int (*okfn)(struct sk_buff *))
 {
-	return ebt_do_table(hook, skb, in, out, dev_net(in)->xt.frame_filter);
+	return ebt_do_table(ops->hooknum, skb, in, out,
+			    dev_net(in)->xt.frame_filter);
 }
 
 static unsigned int
-ebt_out_hook(unsigned int hook, struct sk_buff *skb, const struct net_device *in,
-   const struct net_device *out, int (*okfn)(struct sk_buff *))
+ebt_out_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
+	     const struct net_device *in, const struct net_device *out,
+	     int (*okfn)(struct sk_buff *))
 {
-	return ebt_do_table(hook, skb, in, out, dev_net(out)->xt.frame_filter);
+	return ebt_do_table(ops->hooknum, skb, in, out,
+			    dev_net(out)->xt.frame_filter);
 }
 
 static struct nf_hook_ops ebt_ops_filter[] __read_mostly = {
diff --git a/net/bridge/netfilter/ebtable_nat.c b/net/bridge/netfilter/ebtable_nat.c
index 322555acdd40..bd238f1f105b 100644
--- a/net/bridge/netfilter/ebtable_nat.c
+++ b/net/bridge/netfilter/ebtable_nat.c
@@ -60,17 +60,21 @@ static struct ebt_table frame_nat =
 };
 
 static unsigned int
-ebt_nat_in(unsigned int hook, struct sk_buff *skb, const struct net_device *in
-   , const struct net_device *out, int (*okfn)(struct sk_buff *))
+ebt_nat_in(const struct nf_hook_ops *ops, struct sk_buff *skb,
+	   const struct net_device *in, const struct net_device *out,
+	   int (*okfn)(struct sk_buff *))
 {
-	return ebt_do_table(hook, skb, in, out, dev_net(in)->xt.frame_nat);
+	return ebt_do_table(ops->hooknum, skb, in, out,
+			    dev_net(in)->xt.frame_nat);
 }
 
 static unsigned int
-ebt_nat_out(unsigned int hook, struct sk_buff *skb, const struct net_device *in
-   , const struct net_device *out, int (*okfn)(struct sk_buff *))
+ebt_nat_out(const struct nf_hook_ops *ops, struct sk_buff *skb,
+	    const struct net_device *in, const struct net_device *out,
+	    int (*okfn)(struct sk_buff *))
 {
-	return ebt_do_table(hook, skb, in, out, dev_net(out)->xt.frame_nat);
+	return ebt_do_table(ops->hooknum, skb, in, out,
+			    dev_net(out)->xt.frame_nat);
 }
 
 static struct nf_hook_ops ebt_ops_nat[] __read_mostly = {
diff --git a/net/decnet/netfilter/dn_rtmsg.c b/net/decnet/netfilter/dn_rtmsg.c
index 2a7efe388344..e83015cecfa7 100644
--- a/net/decnet/netfilter/dn_rtmsg.c
+++ b/net/decnet/netfilter/dn_rtmsg.c
@@ -87,7 +87,7 @@ static void dnrmg_send_peer(struct sk_buff *skb)
 }
 
 
-static unsigned int dnrmg_hook(unsigned int hook,
+static unsigned int dnrmg_hook(const struct nf_hook_ops *ops,
 			struct sk_buff *skb,
 			const struct net_device *in,
 			const struct net_device *out,
diff --git a/net/ipv4/netfilter/arptable_filter.c b/net/ipv4/netfilter/arptable_filter.c
index a865f6f94013..802ddecb30b8 100644
--- a/net/ipv4/netfilter/arptable_filter.c
+++ b/net/ipv4/netfilter/arptable_filter.c
@@ -27,13 +27,14 @@ static const struct xt_table packet_filter = {
 
 /* The work comes in here from netfilter.c */
 static unsigned int
-arptable_filter_hook(unsigned int hook, struct sk_buff *skb,
+arptable_filter_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
 		     const struct net_device *in, const struct net_device *out,
 		     int (*okfn)(struct sk_buff *))
 {
 	const struct net *net = dev_net((in != NULL) ? in : out);
 
-	return arpt_do_table(skb, hook, in, out, net->ipv4.arptable_filter);
+	return arpt_do_table(skb, ops->hooknum, in, out,
+			     net->ipv4.arptable_filter);
 }
 
 static struct nf_hook_ops *arpfilter_ops __read_mostly;
diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index 0b732efd32e2..a2e2b61cd7da 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -483,7 +483,7 @@ static void arp_print(struct arp_payload *payload)
 #endif
 
 static unsigned int
-arp_mangle(unsigned int hook,
+arp_mangle(const struct nf_hook_ops *ops,
 	   struct sk_buff *skb,
 	   const struct net_device *in,
 	   const struct net_device *out,
diff --git a/net/ipv4/netfilter/ipt_SYNPROXY.c b/net/ipv4/netfilter/ipt_SYNPROXY.c
index b6346bf2fde3..01cffeaa0085 100644
--- a/net/ipv4/netfilter/ipt_SYNPROXY.c
+++ b/net/ipv4/netfilter/ipt_SYNPROXY.c
@@ -297,7 +297,7 @@ synproxy_tg4(struct sk_buff *skb, const struct xt_action_param *par)
 	return XT_CONTINUE;
 }
 
-static unsigned int ipv4_synproxy_hook(unsigned int hooknum,
+static unsigned int ipv4_synproxy_hook(const struct nf_hook_ops *ops,
 				       struct sk_buff *skb,
 				       const struct net_device *in,
 				       const struct net_device *out,
diff --git a/net/ipv4/netfilter/iptable_filter.c b/net/ipv4/netfilter/iptable_filter.c
index 50af5b45c050..e08a74a243a8 100644
--- a/net/ipv4/netfilter/iptable_filter.c
+++ b/net/ipv4/netfilter/iptable_filter.c
@@ -33,20 +33,21 @@ static const struct xt_table packet_filter = {
 };
 
 static unsigned int
-iptable_filter_hook(unsigned int hook, struct sk_buff *skb,
+iptable_filter_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
 		    const struct net_device *in, const struct net_device *out,
 		    int (*okfn)(struct sk_buff *))
 {
 	const struct net *net;
 
-	if (hook == NF_INET_LOCAL_OUT &&
+	if (ops->hooknum == NF_INET_LOCAL_OUT &&
 	    (skb->len < sizeof(struct iphdr) ||
 	     ip_hdrlen(skb) < sizeof(struct iphdr)))
 		/* root is playing with raw sockets. */
 		return NF_ACCEPT;
 
 	net = dev_net((in != NULL) ? in : out);
-	return ipt_do_table(skb, hook, in, out, net->ipv4.iptable_filter);
+	return ipt_do_table(skb, ops->hooknum, in, out,
+			    net->ipv4.iptable_filter);
 }
 
 static struct nf_hook_ops *filter_ops __read_mostly;
diff --git a/net/ipv4/netfilter/iptable_mangle.c b/net/ipv4/netfilter/iptable_mangle.c
index 0d8cd82e0fad..6a5079c34bb3 100644
--- a/net/ipv4/netfilter/iptable_mangle.c
+++ b/net/ipv4/netfilter/iptable_mangle.c
@@ -79,19 +79,19 @@ ipt_mangle_out(struct sk_buff *skb, const struct net_device *out)
 
 /* The work comes in here from netfilter.c. */
 static unsigned int
-iptable_mangle_hook(unsigned int hook,
+iptable_mangle_hook(const struct nf_hook_ops *ops,
 		     struct sk_buff *skb,
 		     const struct net_device *in,
 		     const struct net_device *out,
 		     int (*okfn)(struct sk_buff *))
 {
-	if (hook == NF_INET_LOCAL_OUT)
+	if (ops->hooknum == NF_INET_LOCAL_OUT)
 		return ipt_mangle_out(skb, out);
-	if (hook == NF_INET_POST_ROUTING)
-		return ipt_do_table(skb, hook, in, out,
+	if (ops->hooknum == NF_INET_POST_ROUTING)
+		return ipt_do_table(skb, ops->hooknum, in, out,
 				    dev_net(out)->ipv4.iptable_mangle);
 	/* PREROUTING/INPUT/FORWARD: */
-	return ipt_do_table(skb, hook, in, out,
+	return ipt_do_table(skb, ops->hooknum, in, out,
 			    dev_net(in)->ipv4.iptable_mangle);
 }
 
diff --git a/net/ipv4/netfilter/iptable_nat.c b/net/ipv4/netfilter/iptable_nat.c
index 683bfaffed65..ee2886126e3d 100644
--- a/net/ipv4/netfilter/iptable_nat.c
+++ b/net/ipv4/netfilter/iptable_nat.c
@@ -61,7 +61,7 @@ static unsigned int nf_nat_rule_find(struct sk_buff *skb, unsigned int hooknum,
 }
 
 static unsigned int
-nf_nat_ipv4_fn(unsigned int hooknum,
+nf_nat_ipv4_fn(const struct nf_hook_ops *ops,
 	       struct sk_buff *skb,
 	       const struct net_device *in,
 	       const struct net_device *out,
@@ -71,7 +71,7 @@ nf_nat_ipv4_fn(unsigned int hooknum,
 	enum ip_conntrack_info ctinfo;
 	struct nf_conn_nat *nat;
 	/* maniptype == SRC for postrouting. */
-	enum nf_nat_manip_type maniptype = HOOK2MANIP(hooknum);
+	enum nf_nat_manip_type maniptype = HOOK2MANIP(ops->hooknum);
 
 	/* We never see fragments: conntrack defrags on pre-routing
 	 * and local-out, and nf_nat_out protects post-routing.
@@ -108,7 +108,7 @@ nf_nat_ipv4_fn(unsigned int hooknum,
 	case IP_CT_RELATED_REPLY:
 		if (ip_hdr(skb)->protocol == IPPROTO_ICMP) {
 			if (!nf_nat_icmp_reply_translation(skb, ct, ctinfo,
-							   hooknum))
+							   ops->hooknum))
 				return NF_DROP;
 			else
 				return NF_ACCEPT;
@@ -121,14 +121,14 @@ nf_nat_ipv4_fn(unsigned int hooknum,
 		if (!nf_nat_initialized(ct, maniptype)) {
 			unsigned int ret;
 
-			ret = nf_nat_rule_find(skb, hooknum, in, out, ct);
+			ret = nf_nat_rule_find(skb, ops->hooknum, in, out, ct);
 			if (ret != NF_ACCEPT)
 				return ret;
 		} else {
 			pr_debug("Already setup manip %s for ct %p\n",
 				 maniptype == NF_NAT_MANIP_SRC ? "SRC" : "DST",
 				 ct);
-			if (nf_nat_oif_changed(hooknum, ctinfo, nat, out))
+			if (nf_nat_oif_changed(ops->hooknum, ctinfo, nat, out))
 				goto oif_changed;
 		}
 		break;
@@ -137,11 +137,11 @@ nf_nat_ipv4_fn(unsigned int hooknum,
 		/* ESTABLISHED */
 		NF_CT_ASSERT(ctinfo == IP_CT_ESTABLISHED ||
 			     ctinfo == IP_CT_ESTABLISHED_REPLY);
-		if (nf_nat_oif_changed(hooknum, ctinfo, nat, out))
+		if (nf_nat_oif_changed(ops->hooknum, ctinfo, nat, out))
 			goto oif_changed;
 	}
 
-	return nf_nat_packet(ct, ctinfo, hooknum, skb);
+	return nf_nat_packet(ct, ctinfo, ops->hooknum, skb);
 
 oif_changed:
 	nf_ct_kill_acct(ct, ctinfo, skb);
@@ -149,7 +149,7 @@ oif_changed:
 }
 
 static unsigned int
-nf_nat_ipv4_in(unsigned int hooknum,
+nf_nat_ipv4_in(const struct nf_hook_ops *ops,
 	       struct sk_buff *skb,
 	       const struct net_device *in,
 	       const struct net_device *out,
@@ -158,7 +158,7 @@ nf_nat_ipv4_in(unsigned int hooknum,
 	unsigned int ret;
 	__be32 daddr = ip_hdr(skb)->daddr;
 
-	ret = nf_nat_ipv4_fn(hooknum, skb, in, out, okfn);
+	ret = nf_nat_ipv4_fn(ops, skb, in, out, okfn);
 	if (ret != NF_DROP && ret != NF_STOLEN &&
 	    daddr != ip_hdr(skb)->daddr)
 		skb_dst_drop(skb);
@@ -167,7 +167,7 @@ nf_nat_ipv4_in(unsigned int hooknum,
 }
 
 static unsigned int
-nf_nat_ipv4_out(unsigned int hooknum,
+nf_nat_ipv4_out(const struct nf_hook_ops *ops,
 		struct sk_buff *skb,
 		const struct net_device *in,
 		const struct net_device *out,
@@ -185,7 +185,7 @@ nf_nat_ipv4_out(unsigned int hooknum,
 	    ip_hdrlen(skb) < sizeof(struct iphdr))
 		return NF_ACCEPT;
 
-	ret = nf_nat_ipv4_fn(hooknum, skb, in, out, okfn);
+	ret = nf_nat_ipv4_fn(ops, skb, in, out, okfn);
 #ifdef CONFIG_XFRM
 	if (ret != NF_DROP && ret != NF_STOLEN &&
 	    !(IPCB(skb)->flags & IPSKB_XFRM_TRANSFORMED) &&
@@ -207,7 +207,7 @@ nf_nat_ipv4_out(unsigned int hooknum,
 }
 
 static unsigned int
-nf_nat_ipv4_local_fn(unsigned int hooknum,
+nf_nat_ipv4_local_fn(const struct nf_hook_ops *ops,
 		     struct sk_buff *skb,
 		     const struct net_device *in,
 		     const struct net_device *out,
@@ -223,7 +223,7 @@ nf_nat_ipv4_local_fn(unsigned int hooknum,
 	    ip_hdrlen(skb) < sizeof(struct iphdr))
 		return NF_ACCEPT;
 
-	ret = nf_nat_ipv4_fn(hooknum, skb, in, out, okfn);
+	ret = nf_nat_ipv4_fn(ops, skb, in, out, okfn);
 	if (ret != NF_DROP && ret != NF_STOLEN &&
 	    (ct = nf_ct_get(skb, &ctinfo)) != NULL) {
 		enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
diff --git a/net/ipv4/netfilter/iptable_raw.c b/net/ipv4/netfilter/iptable_raw.c
index 1f82aea11df6..b2f7e8f98316 100644
--- a/net/ipv4/netfilter/iptable_raw.c
+++ b/net/ipv4/netfilter/iptable_raw.c
@@ -20,20 +20,20 @@ static const struct xt_table packet_raw = {
 
 /* The work comes in here from netfilter.c. */
 static unsigned int
-iptable_raw_hook(unsigned int hook, struct sk_buff *skb,
+iptable_raw_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
 		 const struct net_device *in, const struct net_device *out,
 		 int (*okfn)(struct sk_buff *))
 {
 	const struct net *net;
 
-	if (hook == NF_INET_LOCAL_OUT && 
+	if (ops->hooknum == NF_INET_LOCAL_OUT &&
 	    (skb->len < sizeof(struct iphdr) ||
 	     ip_hdrlen(skb) < sizeof(struct iphdr)))
 		/* root is playing with raw sockets. */
 		return NF_ACCEPT;
 
 	net = dev_net((in != NULL) ? in : out);
-	return ipt_do_table(skb, hook, in, out, net->ipv4.iptable_raw);
+	return ipt_do_table(skb, ops->hooknum, in, out, net->ipv4.iptable_raw);
 }
 
 static struct nf_hook_ops *rawtable_ops __read_mostly;
diff --git a/net/ipv4/netfilter/iptable_security.c b/net/ipv4/netfilter/iptable_security.c
index f867a8d38bf7..c86647ed2078 100644
--- a/net/ipv4/netfilter/iptable_security.c
+++ b/net/ipv4/netfilter/iptable_security.c
@@ -37,21 +37,22 @@ static const struct xt_table security_table = {
 };
 
 static unsigned int
-iptable_security_hook(unsigned int hook, struct sk_buff *skb,
+iptable_security_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
 		      const struct net_device *in,
 		      const struct net_device *out,
 		      int (*okfn)(struct sk_buff *))
 {
 	const struct net *net;
 
-	if (hook == NF_INET_LOCAL_OUT &&
+	if (ops->hooknum == NF_INET_LOCAL_OUT &&
 	    (skb->len < sizeof(struct iphdr) ||
 	     ip_hdrlen(skb) < sizeof(struct iphdr)))
 		/* Somebody is playing with raw sockets. */
 		return NF_ACCEPT;
 
 	net = dev_net((in != NULL) ? in : out);
-	return ipt_do_table(skb, hook, in, out, net->ipv4.iptable_security);
+	return ipt_do_table(skb, ops->hooknum, in, out,
+			    net->ipv4.iptable_security);
 }
 
 static struct nf_hook_ops *sectbl_ops __read_mostly;
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
index 86f5b34a4ed1..ecd8bec411c9 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
+++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
@@ -92,7 +92,7 @@ static int ipv4_get_l4proto(const struct sk_buff *skb, unsigned int nhoff,
 	return NF_ACCEPT;
 }
 
-static unsigned int ipv4_helper(unsigned int hooknum,
+static unsigned int ipv4_helper(const struct nf_hook_ops *ops,
 				struct sk_buff *skb,
 				const struct net_device *in,
 				const struct net_device *out,
@@ -121,7 +121,7 @@ static unsigned int ipv4_helper(unsigned int hooknum,
 			    ct, ctinfo);
 }
 
-static unsigned int ipv4_confirm(unsigned int hooknum,
+static unsigned int ipv4_confirm(const struct nf_hook_ops *ops,
 				 struct sk_buff *skb,
 				 const struct net_device *in,
 				 const struct net_device *out,
@@ -147,16 +147,16 @@ out:
 	return nf_conntrack_confirm(skb);
 }
 
-static unsigned int ipv4_conntrack_in(unsigned int hooknum,
+static unsigned int ipv4_conntrack_in(const struct nf_hook_ops *ops,
 				      struct sk_buff *skb,
 				      const struct net_device *in,
 				      const struct net_device *out,
 				      int (*okfn)(struct sk_buff *))
 {
-	return nf_conntrack_in(dev_net(in), PF_INET, hooknum, skb);
+	return nf_conntrack_in(dev_net(in), PF_INET, ops->hooknum, skb);
 }
 
-static unsigned int ipv4_conntrack_local(unsigned int hooknum,
+static unsigned int ipv4_conntrack_local(const struct nf_hook_ops *ops,
 					 struct sk_buff *skb,
 					 const struct net_device *in,
 					 const struct net_device *out,
@@ -166,7 +166,7 @@ static unsigned int ipv4_conntrack_local(unsigned int hooknum,
 	if (skb->len < sizeof(struct iphdr) ||
 	    ip_hdrlen(skb) < sizeof(struct iphdr))
 		return NF_ACCEPT;
-	return nf_conntrack_in(dev_net(out), PF_INET, hooknum, skb);
+	return nf_conntrack_in(dev_net(out), PF_INET, ops->hooknum, skb);
 }
 
 /* Connection tracking may drop packets, but never alters them, so
diff --git a/net/ipv4/netfilter/nf_defrag_ipv4.c b/net/ipv4/netfilter/nf_defrag_ipv4.c
index 742815518b0f..12e13bd82b5b 100644
--- a/net/ipv4/netfilter/nf_defrag_ipv4.c
+++ b/net/ipv4/netfilter/nf_defrag_ipv4.c
@@ -60,7 +60,7 @@ static enum ip_defrag_users nf_ct_defrag_user(unsigned int hooknum,
 		return IP_DEFRAG_CONNTRACK_OUT + zone;
 }
 
-static unsigned int ipv4_conntrack_defrag(unsigned int hooknum,
+static unsigned int ipv4_conntrack_defrag(const struct nf_hook_ops *ops,
 					  struct sk_buff *skb,
 					  const struct net_device *in,
 					  const struct net_device *out,
@@ -83,7 +83,9 @@ static unsigned int ipv4_conntrack_defrag(unsigned int hooknum,
 #endif
 	/* Gather fragments. */
 	if (ip_is_fragment(ip_hdr(skb))) {
-		enum ip_defrag_users user = nf_ct_defrag_user(hooknum, skb);
+		enum ip_defrag_users user =
+			nf_ct_defrag_user(ops->hooknum, skb);
+
 		if (nf_ct_ipv4_gather_frags(skb, user))
 			return NF_STOLEN;
 	}
diff --git a/net/ipv6/netfilter/ip6t_SYNPROXY.c b/net/ipv6/netfilter/ip6t_SYNPROXY.c
index 2748b042da72..bf9f612c1bc2 100644
--- a/net/ipv6/netfilter/ip6t_SYNPROXY.c
+++ b/net/ipv6/netfilter/ip6t_SYNPROXY.c
@@ -312,7 +312,7 @@ synproxy_tg6(struct sk_buff *skb, const struct xt_action_param *par)
 	return XT_CONTINUE;
 }
 
-static unsigned int ipv6_synproxy_hook(unsigned int hooknum,
+static unsigned int ipv6_synproxy_hook(const struct nf_hook_ops *ops,
 				       struct sk_buff *skb,
 				       const struct net_device *in,
 				       const struct net_device *out,
diff --git a/net/ipv6/netfilter/ip6table_filter.c b/net/ipv6/netfilter/ip6table_filter.c
index 29b44b14c5ea..ca7f6c128086 100644
--- a/net/ipv6/netfilter/ip6table_filter.c
+++ b/net/ipv6/netfilter/ip6table_filter.c
@@ -32,13 +32,14 @@ static const struct xt_table packet_filter = {
 
 /* The work comes in here from netfilter.c. */
 static unsigned int
-ip6table_filter_hook(unsigned int hook, struct sk_buff *skb,
+ip6table_filter_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
 		     const struct net_device *in, const struct net_device *out,
 		     int (*okfn)(struct sk_buff *))
 {
 	const struct net *net = dev_net((in != NULL) ? in : out);
 
-	return ip6t_do_table(skb, hook, in, out, net->ipv6.ip6table_filter);
+	return ip6t_do_table(skb, ops->hooknum, in, out,
+			     net->ipv6.ip6table_filter);
 }
 
 static struct nf_hook_ops *filter_ops __read_mostly;
diff --git a/net/ipv6/netfilter/ip6table_mangle.c b/net/ipv6/netfilter/ip6table_mangle.c
index c705907ae6ab..307bbb782d14 100644
--- a/net/ipv6/netfilter/ip6table_mangle.c
+++ b/net/ipv6/netfilter/ip6table_mangle.c
@@ -76,17 +76,17 @@ ip6t_mangle_out(struct sk_buff *skb, const struct net_device *out)
 
 /* The work comes in here from netfilter.c. */
 static unsigned int
-ip6table_mangle_hook(unsigned int hook, struct sk_buff *skb,
+ip6table_mangle_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
 		     const struct net_device *in, const struct net_device *out,
 		     int (*okfn)(struct sk_buff *))
 {
-	if (hook == NF_INET_LOCAL_OUT)
+	if (ops->hooknum == NF_INET_LOCAL_OUT)
 		return ip6t_mangle_out(skb, out);
-	if (hook == NF_INET_POST_ROUTING)
-		return ip6t_do_table(skb, hook, in, out,
+	if (ops->hooknum == NF_INET_POST_ROUTING)
+		return ip6t_do_table(skb, ops->hooknum, in, out,
 				     dev_net(out)->ipv6.ip6table_mangle);
 	/* INPUT/FORWARD */
-	return ip6t_do_table(skb, hook, in, out,
+	return ip6t_do_table(skb, ops->hooknum, in, out,
 			     dev_net(in)->ipv6.ip6table_mangle);
 }
 
diff --git a/net/ipv6/netfilter/ip6table_nat.c b/net/ipv6/netfilter/ip6table_nat.c
index 9b076d2d3a7b..84c7f33d0cf8 100644
--- a/net/ipv6/netfilter/ip6table_nat.c
+++ b/net/ipv6/netfilter/ip6table_nat.c
@@ -63,7 +63,7 @@ static unsigned int nf_nat_rule_find(struct sk_buff *skb, unsigned int hooknum,
 }
 
 static unsigned int
-nf_nat_ipv6_fn(unsigned int hooknum,
+nf_nat_ipv6_fn(const struct nf_hook_ops *ops,
 	       struct sk_buff *skb,
 	       const struct net_device *in,
 	       const struct net_device *out,
@@ -72,7 +72,7 @@ nf_nat_ipv6_fn(unsigned int hooknum,
 	struct nf_conn *ct;
 	enum ip_conntrack_info ctinfo;
 	struct nf_conn_nat *nat;
-	enum nf_nat_manip_type maniptype = HOOK2MANIP(hooknum);
+	enum nf_nat_manip_type maniptype = HOOK2MANIP(ops->hooknum);
 	__be16 frag_off;
 	int hdrlen;
 	u8 nexthdr;
@@ -111,7 +111,8 @@ nf_nat_ipv6_fn(unsigned int hooknum,
 
 		if (hdrlen >= 0 && nexthdr == IPPROTO_ICMPV6) {
 			if (!nf_nat_icmpv6_reply_translation(skb, ct, ctinfo,
-							     hooknum, hdrlen))
+							     ops->hooknum,
+							     hdrlen))
 				return NF_DROP;
 			else
 				return NF_ACCEPT;
@@ -124,14 +125,14 @@ nf_nat_ipv6_fn(unsigned int hooknum,
 		if (!nf_nat_initialized(ct, maniptype)) {
 			unsigned int ret;
 
-			ret = nf_nat_rule_find(skb, hooknum, in, out, ct);
+			ret = nf_nat_rule_find(skb, ops->hooknum, in, out, ct);
 			if (ret != NF_ACCEPT)
 				return ret;
 		} else {
 			pr_debug("Already setup manip %s for ct %p\n",
 				 maniptype == NF_NAT_MANIP_SRC ? "SRC" : "DST",
 				 ct);
-			if (nf_nat_oif_changed(hooknum, ctinfo, nat, out))
+			if (nf_nat_oif_changed(ops->hooknum, ctinfo, nat, out))
 				goto oif_changed;
 		}
 		break;
@@ -140,11 +141,11 @@ nf_nat_ipv6_fn(unsigned int hooknum,
 		/* ESTABLISHED */
 		NF_CT_ASSERT(ctinfo == IP_CT_ESTABLISHED ||
 			     ctinfo == IP_CT_ESTABLISHED_REPLY);
-		if (nf_nat_oif_changed(hooknum, ctinfo, nat, out))
+		if (nf_nat_oif_changed(ops->hooknum, ctinfo, nat, out))
 			goto oif_changed;
 	}
 
-	return nf_nat_packet(ct, ctinfo, hooknum, skb);
+	return nf_nat_packet(ct, ctinfo, ops->hooknum, skb);
 
 oif_changed:
 	nf_ct_kill_acct(ct, ctinfo, skb);
@@ -152,7 +153,7 @@ oif_changed:
 }
 
 static unsigned int
-nf_nat_ipv6_in(unsigned int hooknum,
+nf_nat_ipv6_in(const struct nf_hook_ops *ops,
 	       struct sk_buff *skb,
 	       const struct net_device *in,
 	       const struct net_device *out,
@@ -161,7 +162,7 @@ nf_nat_ipv6_in(unsigned int hooknum,
 	unsigned int ret;
 	struct in6_addr daddr = ipv6_hdr(skb)->daddr;
 
-	ret = nf_nat_ipv6_fn(hooknum, skb, in, out, okfn);
+	ret = nf_nat_ipv6_fn(ops, skb, in, out, okfn);
 	if (ret != NF_DROP && ret != NF_STOLEN &&
 	    ipv6_addr_cmp(&daddr, &ipv6_hdr(skb)->daddr))
 		skb_dst_drop(skb);
@@ -170,7 +171,7 @@ nf_nat_ipv6_in(unsigned int hooknum,
 }
 
 static unsigned int
-nf_nat_ipv6_out(unsigned int hooknum,
+nf_nat_ipv6_out(const struct nf_hook_ops *ops,
 		struct sk_buff *skb,
 		const struct net_device *in,
 		const struct net_device *out,
@@ -187,7 +188,7 @@ nf_nat_ipv6_out(unsigned int hooknum,
 	if (skb->len < sizeof(struct ipv6hdr))
 		return NF_ACCEPT;
 
-	ret = nf_nat_ipv6_fn(hooknum, skb, in, out, okfn);
+	ret = nf_nat_ipv6_fn(ops, skb, in, out, okfn);
 #ifdef CONFIG_XFRM
 	if (ret != NF_DROP && ret != NF_STOLEN &&
 	    !(IP6CB(skb)->flags & IP6SKB_XFRM_TRANSFORMED) &&
@@ -209,7 +210,7 @@ nf_nat_ipv6_out(unsigned int hooknum,
 }
 
 static unsigned int
-nf_nat_ipv6_local_fn(unsigned int hooknum,
+nf_nat_ipv6_local_fn(const struct nf_hook_ops *ops,
 		     struct sk_buff *skb,
 		     const struct net_device *in,
 		     const struct net_device *out,
@@ -224,7 +225,7 @@ nf_nat_ipv6_local_fn(unsigned int hooknum,
 	if (skb->len < sizeof(struct ipv6hdr))
 		return NF_ACCEPT;
 
-	ret = nf_nat_ipv6_fn(hooknum, skb, in, out, okfn);
+	ret = nf_nat_ipv6_fn(ops, skb, in, out, okfn);
 	if (ret != NF_DROP && ret != NF_STOLEN &&
 	    (ct = nf_ct_get(skb, &ctinfo)) != NULL) {
 		enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
diff --git a/net/ipv6/netfilter/ip6table_raw.c b/net/ipv6/netfilter/ip6table_raw.c
index 9a626d86720f..5274740acecc 100644
--- a/net/ipv6/netfilter/ip6table_raw.c
+++ b/net/ipv6/netfilter/ip6table_raw.c
@@ -19,13 +19,14 @@ static const struct xt_table packet_raw = {
 
 /* The work comes in here from netfilter.c. */
 static unsigned int
-ip6table_raw_hook(unsigned int hook, struct sk_buff *skb,
+ip6table_raw_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
 		  const struct net_device *in, const struct net_device *out,
 		  int (*okfn)(struct sk_buff *))
 {
 	const struct net *net = dev_net((in != NULL) ? in : out);
 
-	return ip6t_do_table(skb, hook, in, out, net->ipv6.ip6table_raw);
+	return ip6t_do_table(skb, ops->hooknum, in, out,
+			     net->ipv6.ip6table_raw);
 }
 
 static struct nf_hook_ops *rawtable_ops __read_mostly;
diff --git a/net/ipv6/netfilter/ip6table_security.c b/net/ipv6/netfilter/ip6table_security.c
index ce88d1d7e525..ab3b0219ecfa 100644
--- a/net/ipv6/netfilter/ip6table_security.c
+++ b/net/ipv6/netfilter/ip6table_security.c
@@ -36,14 +36,15 @@ static const struct xt_table security_table = {
 };
 
 static unsigned int
-ip6table_security_hook(unsigned int hook, struct sk_buff *skb,
+ip6table_security_hook(const struct nf_hook_ops *ops, struct sk_buff *skb,
 		       const struct net_device *in,
 		       const struct net_device *out,
 		       int (*okfn)(struct sk_buff *))
 {
 	const struct net *net = dev_net((in != NULL) ? in : out);
 
-	return ip6t_do_table(skb, hook, in, out, net->ipv6.ip6table_security);
+	return ip6t_do_table(skb, ops->hooknum, in, out,
+			     net->ipv6.ip6table_security);
 }
 
 static struct nf_hook_ops *sectbl_ops __read_mostly;
diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
index 54b75ead5a69..486545eb42ce 100644
--- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
@@ -95,7 +95,7 @@ static int ipv6_get_l4proto(const struct sk_buff *skb, unsigned int nhoff,
 	return NF_ACCEPT;
 }
 
-static unsigned int ipv6_helper(unsigned int hooknum,
+static unsigned int ipv6_helper(const struct nf_hook_ops *ops,
 				struct sk_buff *skb,
 				const struct net_device *in,
 				const struct net_device *out,
@@ -133,7 +133,7 @@ static unsigned int ipv6_helper(unsigned int hooknum,
 	return helper->help(skb, protoff, ct, ctinfo);
 }
 
-static unsigned int ipv6_confirm(unsigned int hooknum,
+static unsigned int ipv6_confirm(const struct nf_hook_ops *ops,
 				 struct sk_buff *skb,
 				 const struct net_device *in,
 				 const struct net_device *out,
@@ -219,16 +219,17 @@ static unsigned int __ipv6_conntrack_in(struct net *net,
 	return nf_conntrack_in(net, PF_INET6, hooknum, skb);
 }
 
-static unsigned int ipv6_conntrack_in(unsigned int hooknum,
+static unsigned int ipv6_conntrack_in(const struct nf_hook_ops *ops,
 				      struct sk_buff *skb,
 				      const struct net_device *in,
 				      const struct net_device *out,
 				      int (*okfn)(struct sk_buff *))
 {
-	return __ipv6_conntrack_in(dev_net(in), hooknum, skb, in, out, okfn);
+	return __ipv6_conntrack_in(dev_net(in), ops->hooknum, skb, in, out,
+				   okfn);
 }
 
-static unsigned int ipv6_conntrack_local(unsigned int hooknum,
+static unsigned int ipv6_conntrack_local(const struct nf_hook_ops *ops,
 					 struct sk_buff *skb,
 					 const struct net_device *in,
 					 const struct net_device *out,
@@ -239,7 +240,8 @@ static unsigned int ipv6_conntrack_local(unsigned int hooknum,
 		net_notice_ratelimited("ipv6_conntrack_local: packet too short\n");
 		return NF_ACCEPT;
 	}
-	return __ipv6_conntrack_in(dev_net(out), hooknum, skb, in, out, okfn);
+	return __ipv6_conntrack_in(dev_net(out), ops->hooknum, skb, in, out,
+				   okfn);
 }
 
 static struct nf_hook_ops ipv6_conntrack_ops[] __read_mostly = {
diff --git a/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c b/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
index aacd121fe8c5..ec483aa3f60f 100644
--- a/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
+++ b/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
@@ -52,7 +52,7 @@ static enum ip6_defrag_users nf_ct6_defrag_user(unsigned int hooknum,
 
 }
 
-static unsigned int ipv6_defrag(unsigned int hooknum,
+static unsigned int ipv6_defrag(const struct nf_hook_ops *ops,
 				struct sk_buff *skb,
 				const struct net_device *in,
 				const struct net_device *out,
@@ -66,7 +66,7 @@ static unsigned int ipv6_defrag(unsigned int hooknum,
 		return NF_ACCEPT;
 #endif
 
-	reasm = nf_ct_frag6_gather(skb, nf_ct6_defrag_user(hooknum, skb));
+	reasm = nf_ct_frag6_gather(skb, nf_ct6_defrag_user(ops->hooknum, skb));
 	/* queued */
 	if (reasm == NULL)
 		return NF_STOLEN;
@@ -75,7 +75,7 @@ static unsigned int ipv6_defrag(unsigned int hooknum,
 	if (reasm == skb)
 		return NF_ACCEPT;
 
-	nf_ct_frag6_output(hooknum, reasm, (struct net_device *)in,
+	nf_ct_frag6_output(ops->hooknum, reasm, (struct net_device *)in,
 			   (struct net_device *)out, okfn);
 
 	return NF_STOLEN;
diff --git a/net/netfilter/core.c b/net/netfilter/core.c
index 593b16ea45e0..1fbab0cdd302 100644
--- a/net/netfilter/core.c
+++ b/net/netfilter/core.c
@@ -146,7 +146,7 @@ unsigned int nf_iterate(struct list_head *head,
 		/* Optimization: we don't need to hold module
 		   reference here, since function can't sleep. --RR */
 repeat:
-		verdict = (*elemp)->hook(hook, skb, indev, outdev, okfn);
+		verdict = (*elemp)->hook(*elemp, skb, indev, outdev, okfn);
 		if (verdict != NF_ACCEPT) {
 #ifdef CONFIG_NETFILTER_DEBUG
 			if (unlikely((verdict & NF_VERDICT_MASK)
diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index 74fd00c27210..34fda62f40f6 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -1239,11 +1239,11 @@ ip_vs_out(unsigned int hooknum, struct sk_buff *skb, int af)
  *	Check if packet is reply for established ip_vs_conn.
  */
 static unsigned int
-ip_vs_reply4(unsigned int hooknum, struct sk_buff *skb,
+ip_vs_reply4(const struct nf_hook_ops *ops, struct sk_buff *skb,
 	     const struct net_device *in, const struct net_device *out,
 	     int (*okfn)(struct sk_buff *))
 {
-	return ip_vs_out(hooknum, skb, AF_INET);
+	return ip_vs_out(ops->hooknum, skb, AF_INET);
 }
 
 /*
@@ -1251,11 +1251,11 @@ ip_vs_reply4(unsigned int hooknum, struct sk_buff *skb,
  *	Check if packet is reply for established ip_vs_conn.
  */
 static unsigned int
-ip_vs_local_reply4(unsigned int hooknum, struct sk_buff *skb,
+ip_vs_local_reply4(const struct nf_hook_ops *ops, struct sk_buff *skb,
 		   const struct net_device *in, const struct net_device *out,
 		   int (*okfn)(struct sk_buff *))
 {
-	return ip_vs_out(hooknum, skb, AF_INET);
+	return ip_vs_out(ops->hooknum, skb, AF_INET);
 }
 
 #ifdef CONFIG_IP_VS_IPV6
@@ -1266,11 +1266,11 @@ ip_vs_local_reply4(unsigned int hooknum, struct sk_buff *skb,
  *	Check if packet is reply for established ip_vs_conn.
  */
 static unsigned int
-ip_vs_reply6(unsigned int hooknum, struct sk_buff *skb,
+ip_vs_reply6(const struct nf_hook_ops *ops, struct sk_buff *skb,
 	     const struct net_device *in, const struct net_device *out,
 	     int (*okfn)(struct sk_buff *))
 {
-	return ip_vs_out(hooknum, skb, AF_INET6);
+	return ip_vs_out(ops->hooknum, skb, AF_INET6);
 }
 
 /*
@@ -1278,11 +1278,11 @@ ip_vs_reply6(unsigned int hooknum, struct sk_buff *skb,
  *	Check if packet is reply for established ip_vs_conn.
  */
 static unsigned int
-ip_vs_local_reply6(unsigned int hooknum, struct sk_buff *skb,
+ip_vs_local_reply6(const struct nf_hook_ops *ops, struct sk_buff *skb,
 		   const struct net_device *in, const struct net_device *out,
 		   int (*okfn)(struct sk_buff *))
 {
-	return ip_vs_out(hooknum, skb, AF_INET6);
+	return ip_vs_out(ops->hooknum, skb, AF_INET6);
 }
 
 #endif
@@ -1733,12 +1733,12 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
  *	Schedule and forward packets from remote clients
  */
 static unsigned int
-ip_vs_remote_request4(unsigned int hooknum, struct sk_buff *skb,
+ip_vs_remote_request4(const struct nf_hook_ops *ops, struct sk_buff *skb,
 		      const struct net_device *in,
 		      const struct net_device *out,
 		      int (*okfn)(struct sk_buff *))
 {
-	return ip_vs_in(hooknum, skb, AF_INET);
+	return ip_vs_in(ops->hooknum, skb, AF_INET);
 }
 
 /*
@@ -1746,11 +1746,11 @@ ip_vs_remote_request4(unsigned int hooknum, struct sk_buff *skb,
  *	Schedule and forward packets from local clients
  */
 static unsigned int
-ip_vs_local_request4(unsigned int hooknum, struct sk_buff *skb,
+ip_vs_local_request4(const struct nf_hook_ops *ops, struct sk_buff *skb,
 		     const struct net_device *in, const struct net_device *out,
 		     int (*okfn)(struct sk_buff *))
 {
-	return ip_vs_in(hooknum, skb, AF_INET);
+	return ip_vs_in(ops->hooknum, skb, AF_INET);
 }
 
 #ifdef CONFIG_IP_VS_IPV6
@@ -1760,7 +1760,7 @@ ip_vs_local_request4(unsigned int hooknum, struct sk_buff *skb,
  * Copy info from first fragment, to the rest of them.
  */
 static unsigned int
-ip_vs_preroute_frag6(unsigned int hooknum, struct sk_buff *skb,
+ip_vs_preroute_frag6(const struct nf_hook_ops *ops, struct sk_buff *skb,
 		     const struct net_device *in,
 		     const struct net_device *out,
 		     int (*okfn)(struct sk_buff *))
@@ -1792,12 +1792,12 @@ ip_vs_preroute_frag6(unsigned int hooknum, struct sk_buff *skb,
  *	Schedule and forward packets from remote clients
  */
 static unsigned int
-ip_vs_remote_request6(unsigned int hooknum, struct sk_buff *skb,
+ip_vs_remote_request6(const struct nf_hook_ops *ops, struct sk_buff *skb,
 		      const struct net_device *in,
 		      const struct net_device *out,
 		      int (*okfn)(struct sk_buff *))
 {
-	return ip_vs_in(hooknum, skb, AF_INET6);
+	return ip_vs_in(ops->hooknum, skb, AF_INET6);
 }
 
 /*
@@ -1805,11 +1805,11 @@ ip_vs_remote_request6(unsigned int hooknum, struct sk_buff *skb,
  *	Schedule and forward packets from local clients
  */
 static unsigned int
-ip_vs_local_request6(unsigned int hooknum, struct sk_buff *skb,
+ip_vs_local_request6(const struct nf_hook_ops *ops, struct sk_buff *skb,
 		     const struct net_device *in, const struct net_device *out,
 		     int (*okfn)(struct sk_buff *))
 {
-	return ip_vs_in(hooknum, skb, AF_INET6);
+	return ip_vs_in(ops->hooknum, skb, AF_INET6);
 }
 
 #endif
@@ -1825,7 +1825,7 @@ ip_vs_local_request6(unsigned int hooknum, struct sk_buff *skb,
  *      and send them to ip_vs_in_icmp.
  */
 static unsigned int
-ip_vs_forward_icmp(unsigned int hooknum, struct sk_buff *skb,
+ip_vs_forward_icmp(const struct nf_hook_ops *ops, struct sk_buff *skb,
 		   const struct net_device *in, const struct net_device *out,
 		   int (*okfn)(struct sk_buff *))
 {
@@ -1842,12 +1842,12 @@ ip_vs_forward_icmp(unsigned int hooknum, struct sk_buff *skb,
 	if (unlikely(sysctl_backup_only(ipvs) || !ipvs->enable))
 		return NF_ACCEPT;
 
-	return ip_vs_in_icmp(skb, &r, hooknum);
+	return ip_vs_in_icmp(skb, &r, ops->hooknum);
 }
 
 #ifdef CONFIG_IP_VS_IPV6
 static unsigned int
-ip_vs_forward_icmp_v6(unsigned int hooknum, struct sk_buff *skb,
+ip_vs_forward_icmp_v6(const struct nf_hook_ops *ops, struct sk_buff *skb,
 		      const struct net_device *in, const struct net_device *out,
 		      int (*okfn)(struct sk_buff *))
 {
@@ -1866,7 +1866,7 @@ ip_vs_forward_icmp_v6(unsigned int hooknum, struct sk_buff *skb,
 	if (unlikely(sysctl_backup_only(ipvs) || !ipvs->enable))
 		return NF_ACCEPT;
 
-	return ip_vs_in_icmp_v6(skb, &r, hooknum, &iphdr);
+	return ip_vs_in_icmp_v6(skb, &r, ops->hooknum, &iphdr);
 }
 #endif
 
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 568c7699abf1..3f224d7795f5 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -4668,7 +4668,7 @@ static unsigned int selinux_ip_forward(struct sk_buff *skb, int ifindex,
 	return NF_ACCEPT;
 }
 
-static unsigned int selinux_ipv4_forward(unsigned int hooknum,
+static unsigned int selinux_ipv4_forward(const struct nf_hook_ops *ops,
 					 struct sk_buff *skb,
 					 const struct net_device *in,
 					 const struct net_device *out,
@@ -4678,7 +4678,7 @@ static unsigned int selinux_ipv4_forward(unsigned int hooknum,
 }
 
 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
-static unsigned int selinux_ipv6_forward(unsigned int hooknum,
+static unsigned int selinux_ipv6_forward(const struct nf_hook_ops *ops,
 					 struct sk_buff *skb,
 					 const struct net_device *in,
 					 const struct net_device *out,
@@ -4710,7 +4710,7 @@ static unsigned int selinux_ip_output(struct sk_buff *skb,
 	return NF_ACCEPT;
 }
 
-static unsigned int selinux_ipv4_output(unsigned int hooknum,
+static unsigned int selinux_ipv4_output(const struct nf_hook_ops *ops,
 					struct sk_buff *skb,
 					const struct net_device *in,
 					const struct net_device *out,
@@ -4837,7 +4837,7 @@ static unsigned int selinux_ip_postroute(struct sk_buff *skb, int ifindex,
 	return NF_ACCEPT;
 }
 
-static unsigned int selinux_ipv4_postroute(unsigned int hooknum,
+static unsigned int selinux_ipv4_postroute(const struct nf_hook_ops *ops,
 					   struct sk_buff *skb,
 					   const struct net_device *in,
 					   const struct net_device *out,
@@ -4847,7 +4847,7 @@ static unsigned int selinux_ipv4_postroute(unsigned int hooknum,
 }
 
 #if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
-static unsigned int selinux_ipv6_postroute(unsigned int hooknum,
+static unsigned int selinux_ipv6_postroute(const struct nf_hook_ops *ops,
 					   struct sk_buff *skb,
 					   const struct net_device *in,
 					   const struct net_device *out,
-- 
cgit 


From f59cb0453cd885736daa11ae2445982c5ab2fc83 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Mon, 14 Oct 2013 10:57:04 +0200
Subject: netfilter: nf_nat: move alloc_null_binding to nf_nat_core.c

Similar to nat_decode_session, alloc_null_binding is needed for both
ip_tables and nf_tables, so move it to nf_nat_core.c. This change
is required by nf_tables.

This is an adapted version of the original patch from Patrick McHardy.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/net/netfilter/nf_nat.h |  3 +++
 net/netfilter/nf_nat_core.c    | 20 ++++++++++++++++++++
 2 files changed, 23 insertions(+)

diff --git a/include/net/netfilter/nf_nat.h b/include/net/netfilter/nf_nat.h
index c29b4e545f87..07eaaf604092 100644
--- a/include/net/netfilter/nf_nat.h
+++ b/include/net/netfilter/nf_nat.h
@@ -45,6 +45,9 @@ unsigned int nf_nat_setup_info(struct nf_conn *ct,
 			       const struct nf_nat_range *range,
 			       enum nf_nat_manip_type maniptype);
 
+extern unsigned int nf_nat_alloc_null_binding(struct nf_conn *ct,
+					      unsigned int hooknum);
+
 /* Is this tuple already taken? (not by us)*/
 int nf_nat_used_tuple(const struct nf_conntrack_tuple *tuple,
 		      const struct nf_conn *ignored_conntrack);
diff --git a/net/netfilter/nf_nat_core.c b/net/netfilter/nf_nat_core.c
index 6f0f4f7f68a5..63a815402211 100644
--- a/net/netfilter/nf_nat_core.c
+++ b/net/netfilter/nf_nat_core.c
@@ -432,6 +432,26 @@ nf_nat_setup_info(struct nf_conn *ct,
 }
 EXPORT_SYMBOL(nf_nat_setup_info);
 
+unsigned int
+nf_nat_alloc_null_binding(struct nf_conn *ct, unsigned int hooknum)
+{
+	/* Force range to this IP; let proto decide mapping for
+	 * per-proto parts (hence not IP_NAT_RANGE_PROTO_SPECIFIED).
+	 * Use reply in case it's already been mangled (eg local packet).
+	 */
+	union nf_inet_addr ip =
+		(HOOK2MANIP(hooknum) == NF_NAT_MANIP_SRC ?
+		ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3 :
+		ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.u3);
+	struct nf_nat_range range = {
+		.flags		= NF_NAT_RANGE_MAP_IPS,
+		.min_addr	= ip,
+		.max_addr	= ip,
+	};
+	return nf_nat_setup_info(ct, &range, HOOK2MANIP(hooknum));
+}
+EXPORT_SYMBOL_GPL(nf_nat_alloc_null_binding);
+
 /* Do packet manipulations according to nf_nat_setup_info. */
 unsigned int nf_nat_packet(struct nf_conn *ct,
 			   enum ip_conntrack_info ctinfo,
-- 
cgit 


From 4518274606d1fae701fc20912c0d24361c9e88cb Mon Sep 17 00:00:00 2001
From: Krzysztof Hałasa <khalasa@piap.pl>
Date: Thu, 12 Sep 2013 08:25:36 -0300
Subject: [media] SOLO6x10: don't do DMA from stack in solo_dma_vin_region()

[m.chehab@samsung.com: Fix CodingStyle: don't use 2 statements on just one line]

Signed-off-by: Krzysztof Ha?asa <khalasa@piap.pl>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/staging/media/solo6x10/solo6x10-disp.c | 25 +++++++++++++++++--------
 1 file changed, 17 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/media/solo6x10/solo6x10-disp.c b/drivers/staging/media/solo6x10/solo6x10-disp.c
index 32d9953bc36e..145295a5db72 100644
--- a/drivers/staging/media/solo6x10/solo6x10-disp.c
+++ b/drivers/staging/media/solo6x10/solo6x10-disp.c
@@ -176,18 +176,27 @@ static void solo_vout_config(struct solo_dev *solo_dev)
 static int solo_dma_vin_region(struct solo_dev *solo_dev, u32 off,
 			       u16 val, int reg_size)
 {
-	u16 buf[64];
-	int i;
-	int ret = 0;
+	u16 *buf;
+	const int n = 64, size = n * sizeof(*buf);
+	int i, ret = 0;
+
+	buf = kmalloc(size, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
 
-	for (i = 0; i < sizeof(buf) >> 1; i++)
+	for (i = 0; i < n; i++)
 		buf[i] = cpu_to_le16(val);
 
-	for (i = 0; i < reg_size; i += sizeof(buf))
-		ret |= solo_p2m_dma(solo_dev, 1, buf,
-				    SOLO_MOTION_EXT_ADDR(solo_dev) + off + i,
-				    sizeof(buf), 0, 0);
+	for (i = 0; i < reg_size; i += size) {
+		ret = solo_p2m_dma(solo_dev, 1, buf,
+				   SOLO_MOTION_EXT_ADDR(solo_dev) + off + i,
+				   size, 0, 0);
+
+		if (ret)
+			break;
+	}
 
+	kfree(buf);
 	return ret;
 }
 
-- 
cgit 


From a3d2d196e13721257cead2227a3ae89b5c6f4de1 Mon Sep 17 00:00:00 2001
From: Krzysztof Hałasa <khalasa@piap.pl>
Date: Thu, 12 Sep 2013 08:26:46 -0300
Subject: [media] SOLO6x10: Remove unused #define SOLO_DEFAULT_GOP

Signed-off-by: Krzysztof Ha?asa <khalasa@piap.pl>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/staging/media/solo6x10/solo6x10.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/staging/media/solo6x10/solo6x10.h b/drivers/staging/media/solo6x10/solo6x10.h
index 6f91d2e34b2a..f1bbb8cb74e6 100644
--- a/drivers/staging/media/solo6x10/solo6x10.h
+++ b/drivers/staging/media/solo6x10/solo6x10.h
@@ -94,7 +94,6 @@
 #define SOLO_ENC_MODE_HD1		1
 #define SOLO_ENC_MODE_D1		9
 
-#define SOLO_DEFAULT_GOP		30
 #define SOLO_DEFAULT_QP			3
 
 #ifndef V4L2_BUF_FLAG_MOTION_ON
-- 
cgit 


From 4a61ad3c4a2c8b50f6b5835d0d36bd8639b9f7ee Mon Sep 17 00:00:00 2001
From: Krzysztof Hałasa <khalasa@piap.pl>
Date: Thu, 12 Sep 2013 08:28:07 -0300
Subject: [media] SOLO6x10: Fix video encoding on big-endian systems

Signed-off-by: Krzysztof Ha?asa <khalasa@piap.pl>
[hans.verkuil@cisco.com: fix merge problems due to the recent solo sg_table changes]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c | 132 +++++++++++++--------
 1 file changed, 80 insertions(+), 52 deletions(-)

diff --git a/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c b/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
index 9a6d5c0b1339..9bf878d57af4 100644
--- a/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
+++ b/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
@@ -95,38 +95,11 @@ static unsigned char vop_6110_pal_cif[] = {
 	0x01, 0x68, 0xce, 0x32, 0x28, 0x00, 0x00, 0x00,
 };
 
-struct vop_header {
-	/* VE_STATUS0 */
-	u32 mpeg_size:20, sad_motion_flag:1, video_motion_flag:1, vop_type:2,
-		channel:5, source_fl:1, interlace:1, progressive:1;
-
-	/* VE_STATUS1 */
-	u32 vsize:8, hsize:8, last_queue:4, nop0:8, scale:4;
-
-	/* VE_STATUS2 */
-	u32 mpeg_off;
-
-	/* VE_STATUS3 */
-	u32 jpeg_off;
-
-	/* VE_STATUS4 */
-	u32 jpeg_size:20, interval:10, nop1:2;
-
-	/* VE_STATUS5/6 */
-	u32 sec, usec;
-
-	/* VE_STATUS7/8/9 */
-	u32 nop2[3];
-
-	/* VE_STATUS10 */
-	u32 mpeg_size_alt:20, nop3:12;
-
-	u32 end_nops[5];
-} __packed;
+typedef __le32 vop_header[16];
 
 struct solo_enc_buf {
 	enum solo_enc_types	type;
-	struct vop_header	*vh;
+	const vop_header	*vh;
 	int			motion;
 };
 
@@ -430,8 +403,64 @@ static int solo_send_desc(struct solo_enc_dev *solo_enc, int skip,
 				 solo_enc->desc_count - 1);
 }
 
+/* Extract values from VOP header - VE_STATUSxx */
+static inline int vop_interlaced(const vop_header *vh)
+{
+	return (__le32_to_cpu((*vh)[0]) >> 30) & 1;
+}
+
+static inline u8 vop_channel(const vop_header *vh)
+{
+	return (__le32_to_cpu((*vh)[0]) >> 24) & 0x1F;
+}
+
+static inline u8 vop_type(const vop_header *vh)
+{
+	return (__le32_to_cpu((*vh)[0]) >> 22) & 3;
+}
+
+static inline u32 vop_mpeg_size(const vop_header *vh)
+{
+	return __le32_to_cpu((*vh)[0]) & 0xFFFFF;
+}
+
+static inline u8 vop_hsize(const vop_header *vh)
+{
+	return (__le32_to_cpu((*vh)[1]) >> 8) & 0xFF;
+}
+
+static inline u8 vop_vsize(const vop_header *vh)
+{
+	return __le32_to_cpu((*vh)[1]) & 0xFF;
+}
+
+static inline u32 vop_mpeg_offset(const vop_header *vh)
+{
+	return __le32_to_cpu((*vh)[2]);
+}
+
+static inline u32 vop_jpeg_offset(const vop_header *vh)
+{
+	return __le32_to_cpu((*vh)[3]);
+}
+
+static inline u32 vop_jpeg_size(const vop_header *vh)
+{
+	return __le32_to_cpu((*vh)[4]) & 0xFFFFF;
+}
+
+static inline u32 vop_sec(const vop_header *vh)
+{
+	return __le32_to_cpu((*vh)[5]);
+}
+
+static inline u32 vop_usec(const vop_header *vh)
+{
+	return __le32_to_cpu((*vh)[6]);
+}
+
 static int solo_fill_jpeg(struct solo_enc_dev *solo_enc,
-		struct vb2_buffer *vb, struct vop_header *vh)
+			  struct vb2_buffer *vb, const vop_header *vh)
 {
 	struct solo_dev *solo_dev = solo_enc->solo_dev;
 	struct sg_table *vbuf = vb2_dma_sg_plane_desc(vb, 0);
@@ -440,29 +469,30 @@ static int solo_fill_jpeg(struct solo_enc_dev *solo_enc,
 
 	vb->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
 
-	if (vb2_plane_size(vb, 0) < vh->jpeg_size + solo_enc->jpeg_len)
+	if (vb2_plane_size(vb, 0) < vop_jpeg_size(vh) + solo_enc->jpeg_len)
 		return -EIO;
 
 	sg_copy_from_buffer(vbuf->sgl, vbuf->nents,
 			solo_enc->jpeg_header,
 			solo_enc->jpeg_len);
 
-	frame_size = (vh->jpeg_size + solo_enc->jpeg_len + (DMA_ALIGN - 1))
+	frame_size = (vop_jpeg_size(vh) + solo_enc->jpeg_len + (DMA_ALIGN - 1))
 		& ~(DMA_ALIGN - 1);
-	vb2_set_plane_payload(vb, 0, vh->jpeg_size + solo_enc->jpeg_len);
+	vb2_set_plane_payload(vb, 0, vop_jpeg_size(vh) + solo_enc->jpeg_len);
 
 	dma_map_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents,
 			DMA_FROM_DEVICE);
-	ret = solo_send_desc(solo_enc, solo_enc->jpeg_len, vbuf, vh->jpeg_off,
-			frame_size, SOLO_JPEG_EXT_ADDR(solo_dev),
-			SOLO_JPEG_EXT_SIZE(solo_dev));
+	ret = solo_send_desc(solo_enc, solo_enc->jpeg_len, vbuf,
+			     vop_jpeg_offset(vh) - SOLO_JPEG_EXT_ADDR(solo_dev),
+			     frame_size, SOLO_JPEG_EXT_ADDR(solo_dev),
+			     SOLO_JPEG_EXT_SIZE(solo_dev));
 	dma_unmap_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents,
 			DMA_FROM_DEVICE);
 	return ret;
 }
 
 static int solo_fill_mpeg(struct solo_enc_dev *solo_enc,
-		struct vb2_buffer *vb, struct vop_header *vh)
+		struct vb2_buffer *vb, const vop_header *vh)
 {
 	struct solo_dev *solo_dev = solo_enc->solo_dev;
 	struct sg_table *vbuf = vb2_dma_sg_plane_desc(vb, 0);
@@ -470,11 +500,11 @@ static int solo_fill_mpeg(struct solo_enc_dev *solo_enc,
 	int skip = 0;
 	int ret;
 
-	if (vb2_plane_size(vb, 0) < vh->mpeg_size)
+	if (vb2_plane_size(vb, 0) < vop_mpeg_size(vh))
 		return -EIO;
 
 	/* If this is a key frame, add extra header */
-	if (!vh->vop_type) {
+	if (!vop_type(vh)) {
 		sg_copy_from_buffer(vbuf->sgl, vbuf->nents,
 				solo_enc->vop,
 				solo_enc->vop_len);
@@ -482,16 +512,16 @@ static int solo_fill_mpeg(struct solo_enc_dev *solo_enc,
 		skip = solo_enc->vop_len;
 
 		vb->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
-		vb2_set_plane_payload(vb, 0, vh->mpeg_size + solo_enc->vop_len);
+		vb2_set_plane_payload(vb, 0, vop_mpeg_size(vh) + solo_enc->vop_len);
 	} else {
 		vb->v4l2_buf.flags |= V4L2_BUF_FLAG_PFRAME;
-		vb2_set_plane_payload(vb, 0, vh->mpeg_size);
+		vb2_set_plane_payload(vb, 0, vop_mpeg_size(vh));
 	}
 
 	/* Now get the actual mpeg payload */
-	frame_off = (vh->mpeg_off + sizeof(*vh))
+	frame_off = (vop_mpeg_offset(vh) - SOLO_MP4E_EXT_ADDR(solo_dev) + sizeof(*vh))
 		% SOLO_MP4E_EXT_SIZE(solo_dev);
-	frame_size = (vh->mpeg_size + skip + (DMA_ALIGN - 1))
+	frame_size = (vop_mpeg_size(vh) + skip + (DMA_ALIGN - 1))
 		& ~(DMA_ALIGN - 1);
 
 	dma_map_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents,
@@ -507,7 +537,7 @@ static int solo_fill_mpeg(struct solo_enc_dev *solo_enc,
 static int solo_enc_fillbuf(struct solo_enc_dev *solo_enc,
 			    struct vb2_buffer *vb, struct solo_enc_buf *enc_buf)
 {
-	struct vop_header *vh = enc_buf->vh;
+	const vop_header *vh = enc_buf->vh;
 	int ret;
 
 	/* Check for motion flags */
@@ -531,8 +561,8 @@ static int solo_enc_fillbuf(struct solo_enc_dev *solo_enc,
 
 	if (!ret) {
 		vb->v4l2_buf.sequence = solo_enc->sequence++;
-		vb->v4l2_buf.timestamp.tv_sec = vh->sec;
-		vb->v4l2_buf.timestamp.tv_usec = vh->usec;
+		vb->v4l2_buf.timestamp.tv_sec = vop_sec(vh);
+		vb->v4l2_buf.timestamp.tv_usec = vop_usec(vh);
 	}
 
 	vb2_buffer_done(vb, ret ? VB2_BUF_STATE_ERROR : VB2_BUF_STATE_DONE);
@@ -605,15 +635,13 @@ static void solo_handle_ring(struct solo_dev *solo_dev)
 
 		/* FAIL... */
 		if (enc_get_mpeg_dma(solo_dev, solo_dev->vh_dma, off,
-				     sizeof(struct vop_header)))
+				     sizeof(vop_header)))
 			continue;
 
-		enc_buf.vh = (struct vop_header *)solo_dev->vh_buf;
-		enc_buf.vh->mpeg_off -= SOLO_MP4E_EXT_ADDR(solo_dev);
-		enc_buf.vh->jpeg_off -= SOLO_JPEG_EXT_ADDR(solo_dev);
+		enc_buf.vh = solo_dev->vh_buf;
 
 		/* Sanity check */
-		if (enc_buf.vh->mpeg_off != off)
+		if (vop_mpeg_offset(enc_buf.vh) != SOLO_MP4E_EXT_ADDR(solo_dev) + off)
 			continue;
 
 		if (solo_motion_detected(solo_enc))
@@ -1329,7 +1357,7 @@ int solo_enc_v4l2_init(struct solo_dev *solo_dev, unsigned nr)
 
 	init_waitqueue_head(&solo_dev->ring_thread_wait);
 
-	solo_dev->vh_size = sizeof(struct vop_header);
+	solo_dev->vh_size = sizeof(vop_header);
 	solo_dev->vh_buf = pci_alloc_consistent(solo_dev->pdev,
 						solo_dev->vh_size,
 						&solo_dev->vh_dma);
-- 
cgit 


From 39e30a22d2f03feba7fd8cbb79e3c1d93e812c2e Mon Sep 17 00:00:00 2001
From: Krzysztof Hałasa <khalasa@piap.pl>
Date: Thu, 12 Sep 2013 08:43:34 -0300
Subject: [media] SOLO6x10: Fix video headers on certain hardware

On certain platforms a sequence of dma_map_sg() and dma_unmap_sg()
discards data previously stored in the buffers. Build video headers
only after the DMA is completed.

Signed-off-by: Krzysztof Ha?asa <khalasa@piap.pl>
[hans.verkuil@cisco.com: fix merge problems due to the recent solo sg_table changes]
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c b/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
index 9bf878d57af4..51200a3e4bd7 100644
--- a/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
+++ b/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
@@ -472,14 +472,11 @@ static int solo_fill_jpeg(struct solo_enc_dev *solo_enc,
 	if (vb2_plane_size(vb, 0) < vop_jpeg_size(vh) + solo_enc->jpeg_len)
 		return -EIO;
 
-	sg_copy_from_buffer(vbuf->sgl, vbuf->nents,
-			solo_enc->jpeg_header,
-			solo_enc->jpeg_len);
-
 	frame_size = (vop_jpeg_size(vh) + solo_enc->jpeg_len + (DMA_ALIGN - 1))
 		& ~(DMA_ALIGN - 1);
 	vb2_set_plane_payload(vb, 0, vop_jpeg_size(vh) + solo_enc->jpeg_len);
 
+	/* may discard all previous data in vbuf->sgl */
 	dma_map_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents,
 			DMA_FROM_DEVICE);
 	ret = solo_send_desc(solo_enc, solo_enc->jpeg_len, vbuf,
@@ -488,6 +485,11 @@ static int solo_fill_jpeg(struct solo_enc_dev *solo_enc,
 			     SOLO_JPEG_EXT_SIZE(solo_dev));
 	dma_unmap_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents,
 			DMA_FROM_DEVICE);
+
+	/* add the header only after dma_unmap_sg() */
+	sg_copy_from_buffer(vbuf->sgl, vbuf->nents,
+			    solo_enc->jpeg_header, solo_enc->jpeg_len);
+
 	return ret;
 }
 
@@ -505,12 +507,7 @@ static int solo_fill_mpeg(struct solo_enc_dev *solo_enc,
 
 	/* If this is a key frame, add extra header */
 	if (!vop_type(vh)) {
-		sg_copy_from_buffer(vbuf->sgl, vbuf->nents,
-				solo_enc->vop,
-				solo_enc->vop_len);
-
 		skip = solo_enc->vop_len;
-
 		vb->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
 		vb2_set_plane_payload(vb, 0, vop_mpeg_size(vh) + solo_enc->vop_len);
 	} else {
@@ -524,6 +521,7 @@ static int solo_fill_mpeg(struct solo_enc_dev *solo_enc,
 	frame_size = (vop_mpeg_size(vh) + skip + (DMA_ALIGN - 1))
 		& ~(DMA_ALIGN - 1);
 
+	/* may discard all previous data in vbuf->sgl */
 	dma_map_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents,
 			DMA_FROM_DEVICE);
 	ret = solo_send_desc(solo_enc, skip, vbuf, frame_off, frame_size,
@@ -531,6 +529,11 @@ static int solo_fill_mpeg(struct solo_enc_dev *solo_enc,
 			SOLO_MP4E_EXT_SIZE(solo_dev));
 	dma_unmap_sg(&solo_dev->pdev->dev, vbuf->sgl, vbuf->nents,
 			DMA_FROM_DEVICE);
+
+	/* add the header only after dma_unmap_sg() */
+	if (!vop_type(vh))
+		sg_copy_from_buffer(vbuf->sgl, vbuf->nents,
+				    solo_enc->vop, solo_enc->vop_len);
 	return ret;
 }
 
-- 
cgit 


From 3bf740bf8d4258e1e22176761663cf298518def3 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 04:37:51 -0300
Subject: [media] radio-sf16fmr2: Remove redundant dev_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/radio/radio-sf16fmr2.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/media/radio/radio-sf16fmr2.c b/drivers/media/radio/radio-sf16fmr2.c
index 620c4907e701..93d864eb8306 100644
--- a/drivers/media/radio/radio-sf16fmr2.c
+++ b/drivers/media/radio/radio-sf16fmr2.c
@@ -295,7 +295,6 @@ static void fmr2_remove(struct fmr2 *fmr2)
 static int fmr2_isa_remove(struct device *pdev, unsigned int ndev)
 {
 	fmr2_remove(dev_get_drvdata(pdev));
-	dev_set_drvdata(pdev, NULL);
 
 	return 0;
 }
-- 
cgit 


From 4699b5f34a09e6fcc006567876b0c3d35a188c62 Mon Sep 17 00:00:00 2001
From: Luis Alves <ljalvs@gmail.com>
Date: Fri, 4 Oct 2013 11:48:11 -0300
Subject: [media] cx24117: prevent mutex to be stuck on locked state if FE init
 fails

This patch will fix the situation where the mutex was left in a
locked state if for some reason the FE init failed.

Signed-off-by: Luis Alves <ljalvs@gmail.com>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/dvb-frontends/cx24117.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/media/dvb-frontends/cx24117.c b/drivers/media/dvb-frontends/cx24117.c
index 908730959e38..476b422ccf19 100644
--- a/drivers/media/dvb-frontends/cx24117.c
+++ b/drivers/media/dvb-frontends/cx24117.c
@@ -1238,11 +1238,11 @@ static int cx24117_initfe(struct dvb_frontend *fe)
 	cmd.len = 3;
 	ret = cx24117_cmd_execute_nolock(fe, &cmd);
 	if (ret != 0)
-		return ret;
+		goto exit;
 
 	ret = cx24117_diseqc_init(fe);
 	if (ret != 0)
-		return ret;
+		goto exit;
 
 	/* CMD 3C */
 	cmd.args[0] = 0x3c;
@@ -1252,7 +1252,7 @@ static int cx24117_initfe(struct dvb_frontend *fe)
 	cmd.len = 4;
 	ret = cx24117_cmd_execute_nolock(fe, &cmd);
 	if (ret != 0)
-		return ret;
+		goto exit;
 
 	/* CMD 34 */
 	cmd.args[0] = 0x34;
@@ -1260,9 +1260,8 @@ static int cx24117_initfe(struct dvb_frontend *fe)
 	cmd.args[2] = CX24117_OCC;
 	cmd.len = 3;
 	ret = cx24117_cmd_execute_nolock(fe, &cmd);
-	if (ret != 0)
-		return ret;
 
+exit:
 	mutex_unlock(&state->priv->fe_lock);
 
 	return ret;
-- 
cgit 


From fe7cb6bcb41eb45e177dd20abb475c9819e14507 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Thu, 12 Sep 2013 16:59:58 -0300
Subject: [media] siano: Don't show debug messages as errors
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

At this bugzilla and similar ones:
   https://bugzilla.kernel.org/show_bug.cgi?id=60645
Those debug messages were seen as errors, but they're just debug
data, and are OK to appear on sms1100 and sms2270. Re-tag them
to appear only if debug is enabled.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Tested-by: André Roth <neolynx@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/common/siano/smscoreapi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/common/siano/smscoreapi.c b/drivers/media/common/siano/smscoreapi.c
index a142f7942a01..acf39ad9b4f5 100644
--- a/drivers/media/common/siano/smscoreapi.c
+++ b/drivers/media/common/siano/smscoreapi.c
@@ -982,7 +982,7 @@ static int smscore_load_firmware_family2(struct smscore_device_t *coredev,
 	if (rc < 0)
 		goto exit_fw_download;
 
-	sms_err("sending MSG_SMS_DATA_VALIDITY_REQ expecting 0x%x",
+	sms_debug("sending MSG_SMS_DATA_VALIDITY_REQ expecting 0x%x",
 		calc_checksum);
 	SMS_INIT_MSG(&msg->x_msg_header, MSG_SMS_DATA_VALIDITY_REQ,
 			sizeof(msg->x_msg_header) +
@@ -1562,7 +1562,7 @@ void smscore_onresponse(struct smscore_device_t *coredev,
 		{
 			struct sms_msg_data *validity = (struct sms_msg_data *) phdr;
 
-			sms_err("MSG_SMS_DATA_VALIDITY_RES, checksum = 0x%x",
+			sms_debug("MSG_SMS_DATA_VALIDITY_RES, checksum = 0x%x",
 				validity->msg_data[0]);
 			complete(&coredev->data_validity_done);
 			break;
-- 
cgit 


From f43b396c71193a6f5f77863ca12e9bf7cf9914b4 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Thu, 12 Sep 2013 16:59:59 -0300
Subject: [media] siano: Improve debug/info messages
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Some messages are not clear, some are debug data, but are
shown as errors, and one message is duplicated.
Cleanup that mess in order to provide a cleaner log.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Tested-by: André Roth <neolynx@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/siano/smsusb.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/media/usb/siano/smsusb.c b/drivers/media/usb/siano/smsusb.c
index 03761c6f472f..74236b8007c7 100644
--- a/drivers/media/usb/siano/smsusb.c
+++ b/drivers/media/usb/siano/smsusb.c
@@ -209,8 +209,10 @@ static int smsusb_sendrequest(void *context, void *buffer, size_t size)
 	struct sms_msg_hdr *phdr = (struct sms_msg_hdr *) buffer;
 	int dummy;
 
-	if (dev->state != SMSUSB_ACTIVE)
+	if (dev->state != SMSUSB_ACTIVE) {
+		sms_debug("Device not active yet");
 		return -ENOENT;
+	}
 
 	sms_debug("sending %s(%d) size: %d",
 		  smscore_translate_msg(phdr->msg_type), phdr->msg_type,
@@ -445,14 +447,15 @@ static int smsusb_probe(struct usb_interface *intf,
 	char devpath[32];
 	int i, rc;
 
-	sms_info("interface number %d",
+	sms_info("board id=%lu, interface number %d",
+		 id->driver_info,
 		 intf->cur_altsetting->desc.bInterfaceNumber);
 
 	if (sms_get_board(id->driver_info)->intf_num !=
 	    intf->cur_altsetting->desc.bInterfaceNumber) {
-		sms_err("interface number is %d expecting %d",
-			sms_get_board(id->driver_info)->intf_num,
-			intf->cur_altsetting->desc.bInterfaceNumber);
+		sms_debug("interface %d won't be used. Expecting interface %d to popup",
+			intf->cur_altsetting->desc.bInterfaceNumber,
+			sms_get_board(id->driver_info)->intf_num);
 		return -ENODEV;
 	}
 
@@ -483,12 +486,11 @@ static int smsusb_probe(struct usb_interface *intf,
 	}
 	if ((udev->actconfig->desc.bNumInterfaces == 2) &&
 	    (intf->cur_altsetting->desc.bInterfaceNumber == 0)) {
-		sms_err("rom interface 0 is not used");
+		sms_debug("rom interface 0 is not used");
 		return -ENODEV;
 	}
 
 	if (id->driver_info == SMS1XXX_BOARD_SIANO_STELLAR_ROM) {
-		sms_info("stellar device was found.");
 		snprintf(devpath, sizeof(devpath), "usb\\%d-%s",
 			 udev->bus->busnum, udev->devpath);
 		sms_info("stellar device was found.");
@@ -498,7 +500,7 @@ static int smsusb_probe(struct usb_interface *intf,
 	}
 
 	rc = smsusb_init_device(intf, id->driver_info);
-	sms_info("rc %d", rc);
+	sms_info("Device initialized with return code %d", rc);
 	sms_board_load_modules(id->driver_info);
 	return rc;
 }
-- 
cgit 


From 811a4f6d11ab5f0b7b1c130407c9120c0ee954b2 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Thu, 12 Sep 2013 17:00:00 -0300
Subject: [media] siano: Fix initialization for Stellar models
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Since kernel 3.8, the initialization for Stellar (sms1000)
devices are broken.
Those devices have a behaviour different than usual sms1100
and sms2270: they start with one USB ID (devices in cold state),
but after firmware load, they get a different USB ID.
This weren't docummented at the driver. So, the patches that added
support for sms2270 broke it.
Properly documment it, and provide a debug log that allows to
follow all phases of the device initialization:
	smsusb_probe: board id=13, interface number 0
	smsusb_probe: interface 0 won't be used. Expecting interface 1 to popup
	smsusb_probe: board id=13, interface number 1
	smsusb_probe: smsusb_probe 1
	smsusb_probe: endpoint 0 81 02 64
	smsusb_probe: endpoint 1 02 02 64
	smsusb_probe: stellar device in cold state was found at usb\4-2.
	smsusb1_load_firmware: sent 38144(38144) bytes, rc 0
	smsusb1_load_firmware: read FW dvbt_bda_stellar_usb.inp, size=38144
	smsusb_probe: stellar device now in warm state
	usbcore: registered new interface driver smsusb
	usb 4-2: USB disconnect, device number 52
	usb 4-2: new full-speed USB device number 53 using uhci_hcd
	usb 4-2: New USB device found, idVendor=187f, idProduct=0100
	usb 4-2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
	usb 4-2: Product: SMS DVBT-BDA Receiver
	usb 4-2: Manufacturer: Siano Mobile Silicon
	smsusb_probe: board id=1, interface number 0
	smsusb_probe: smsusb_probe 0
	smsusb_probe: endpoint 0 81 02 64
	smsusb_probe: endpoint 1 02 02 64
	smsusb_init_device: in_ep = 81, out_ep = 02
	smscore_register_device: allocated 50 buffers
	smscore_register_device: device ffff88012a00bc00 created
	smsusb_init_device: smsusb_start_streaming(...).
	smscore_set_device_mode: set device mode to 4
	smsusb1_detectmode: 4 "SMS DVBT-BDA Receiver"
	smsusb_sendrequest: sending MSG_SMS_INIT_DEVICE_REQ(578) size: 12
	smsusb_onresponse: received MSG_SMS_INIT_DEVICE_RES(579) size: 12
	smscore_set_device_mode: Success setting device mode.
	smscore_init_ir: IR port has not been detected
	smscore_start_device: device ffff88012a00bc00 started, rc 0
	smsusb_init_device: device 0xffff88002cfa6000 created
	smsusb_probe: Device initialized with return code 0
	DVB: registering new adapter (Siano Stellar Digital Receiver)
	usb 4-2: DVB: registering adapter 0 frontend 0 (Siano Mobile Digital MDTV Receiver)...
	smscore_register_client: ffff88012174a000 693 1
	sms_board_dvb3_event: DVB3_EVENT_HOTPLUG
	smsdvb_hotplug: success
	smsdvb_module_init:

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Tested-by: André Roth <neolynx@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/siano/smsusb.c | 22 ++++++++++++++++++----
 1 file changed, 18 insertions(+), 4 deletions(-)

diff --git a/drivers/media/usb/siano/smsusb.c b/drivers/media/usb/siano/smsusb.c
index 74236b8007c7..33f357510194 100644
--- a/drivers/media/usb/siano/smsusb.c
+++ b/drivers/media/usb/siano/smsusb.c
@@ -491,15 +491,26 @@ static int smsusb_probe(struct usb_interface *intf,
 	}
 
 	if (id->driver_info == SMS1XXX_BOARD_SIANO_STELLAR_ROM) {
+		/* Detected a Siano Stellar uninitialized */
+
 		snprintf(devpath, sizeof(devpath), "usb\\%d-%s",
 			 udev->bus->busnum, udev->devpath);
-		sms_info("stellar device was found.");
-		return smsusb1_load_firmware(
+		sms_info("stellar device in cold state was found at %s.", devpath);
+		rc = smsusb1_load_firmware(
 				udev, smscore_registry_getmode(devpath),
 				id->driver_info);
+
+		/* This device will reset and gain another USB ID */
+		if (!rc)
+			sms_info("stellar device now in warm state");
+		else
+			sms_err("Failed to put stellar in warm state. Error: %d", rc);
+
+		return rc;
+	} else {
+		rc = smsusb_init_device(intf, id->driver_info);
 	}
 
-	rc = smsusb_init_device(intf, id->driver_info);
 	sms_info("Device initialized with return code %d", rc);
 	sms_board_load_modules(id->driver_info);
 	return rc;
@@ -552,10 +563,13 @@ static int smsusb_resume(struct usb_interface *intf)
 }
 
 static const struct usb_device_id smsusb_id_table[] = {
+	/* This device is only present before firmware load */
 	{ USB_DEVICE(0x187f, 0x0010),
-		.driver_info = SMS1XXX_BOARD_SIANO_STELLAR },
+		.driver_info = SMS1XXX_BOARD_SIANO_STELLAR_ROM },
+	/* This device pops up after firmware load */
 	{ USB_DEVICE(0x187f, 0x0100),
 		.driver_info = SMS1XXX_BOARD_SIANO_STELLAR },
+
 	{ USB_DEVICE(0x187f, 0x0200),
 		.driver_info = SMS1XXX_BOARD_SIANO_NOVA_A },
 	{ USB_DEVICE(0x187f, 0x0201),
-- 
cgit 


From b00ade2bb1f9ac6b25c6c8ac48ed82a1c43c5801 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Thu, 12 Sep 2013 17:04:07 -0300
Subject: [media] siano: Use the default firmware for Stellar
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The Stellar firmware load routine is different. Improve it to use
the default firmware, if no modprobe parameter tells otherwise.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Tested-by: André Roth <neolynx@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/siano/smsusb.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/usb/siano/smsusb.c b/drivers/media/usb/siano/smsusb.c
index 33f357510194..05bd91a60c09 100644
--- a/drivers/media/usb/siano/smsusb.c
+++ b/drivers/media/usb/siano/smsusb.c
@@ -245,6 +245,9 @@ static int smsusb1_load_firmware(struct usb_device *udev, int id, int board_id)
 	int rc, dummy;
 	char *fw_filename;
 
+	if (id < 0)
+		id = sms_get_board(board_id)->default_mode;
+
 	if (id < DEVICE_MODE_DVBT || id > DEVICE_MODE_DVBT_BDA) {
 		sms_err("invalid firmware id specified %d", id);
 		return -EINVAL;
-- 
cgit 


From 642ca1a0917be38e5db932a1524de748076bb087 Mon Sep 17 00:00:00 2001
From: Anca Emanuel <anca.emanuel@gmail.com>
Date: Fri, 13 Sep 2013 11:28:12 -0300
Subject: [media] cx23885: Add Leadtek Winfast PxPVR2200

Tested:
   Composite: http://imgur.com/Rb1TCF3
   TV: http://imgur.com/KNrfsmv
   Firmware used: xc3028-v27.fw

Not tested: audio, component, s-video, mpeg2 encoder, FM radio.

For audio, it uses an CD style cable to connect to the analog "CD_IN" on the motherboard.

I didn't found how to unmute it (alsamixer do not show an CD or AUX channel).

Signed-off-by: Anca Emanuel <anca.emanuel@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/cx23885/cx23885-cards.c | 41 +++++++++++++++++++++++++++++++
 drivers/media/pci/cx23885/cx23885-video.c |  3 ++-
 drivers/media/pci/cx23885/cx23885.h       |  1 +
 3 files changed, 44 insertions(+), 1 deletion(-)

diff --git a/drivers/media/pci/cx23885/cx23885-cards.c b/drivers/media/pci/cx23885/cx23885-cards.c
index b3ae43da2598..79f20c8c842e 100644
--- a/drivers/media/pci/cx23885/cx23885-cards.c
+++ b/drivers/media/pci/cx23885/cx23885-cards.c
@@ -223,6 +223,39 @@ struct cx23885_board cx23885_boards[] = {
 		.name		= "Leadtek Winfast PxDVR3200 H",
 		.portc		= CX23885_MPEG_DVB,
 	},
+	[CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200] = {
+		.name		= "Leadtek Winfast PxPVR2200",
+		.porta		= CX23885_ANALOG_VIDEO,
+		.tuner_type	= TUNER_XC2028,
+		.tuner_addr	= 0x61,
+		.tuner_bus	= 1,
+		.input		= {{
+			.type	= CX23885_VMUX_TELEVISION,
+			.vmux	= CX25840_VIN2_CH1 |
+				  CX25840_VIN5_CH2,
+			.amux	= CX25840_AUDIO8,
+			.gpio0	= 0x704040,
+		}, {
+			.type	= CX23885_VMUX_COMPOSITE1,
+			.vmux	= CX25840_COMPOSITE1,
+			.amux	= CX25840_AUDIO7,
+			.gpio0	= 0x704040,
+		}, {
+			.type	= CX23885_VMUX_SVIDEO,
+			.vmux	= CX25840_SVIDEO_LUMA3 |
+				  CX25840_SVIDEO_CHROMA4,
+			.amux	= CX25840_AUDIO7,
+			.gpio0	= 0x704040,
+		}, {
+			.type	= CX23885_VMUX_COMPONENT,
+			.vmux	= CX25840_VIN7_CH1 |
+				  CX25840_VIN6_CH2 |
+				  CX25840_VIN8_CH3 |
+				  CX25840_COMPONENT_ON,
+			.amux	= CX25840_AUDIO7,
+			.gpio0	= 0x704040,
+		} },
+	},
 	[CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H_XC4000] = {
 		.name		= "Leadtek Winfast PxDVR3200 H XC4000",
 		.porta		= CX23885_ANALOG_VIDEO,
@@ -696,6 +729,10 @@ struct cx23885_subid cx23885_subids[] = {
 		.subvendor = 0x107d,
 		.subdevice = 0x6681,
 		.card      = CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H,
+	}, {
+		.subvendor = 0x107d,
+		.subdevice = 0x6f21,
+		.card      = CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200,
 	}, {
 		.subvendor = 0x107d,
 		.subdevice = 0x6f39,
@@ -1090,6 +1127,7 @@ int cx23885_tuner_callback(void *priv, int component, int command, int arg)
 	case CX23885_BOARD_HAUPPAUGE_HVR1500:
 	case CX23885_BOARD_HAUPPAUGE_HVR1500Q:
 	case CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H:
+	case CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200:
 	case CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H_XC4000:
 	case CX23885_BOARD_COMPRO_VIDEOMATE_E650F:
 	case CX23885_BOARD_COMPRO_VIDEOMATE_E800:
@@ -1255,6 +1293,7 @@ void cx23885_gpio_setup(struct cx23885_dev *dev)
 		cx_set(GP0_IO, 0x000f000f);
 		break;
 	case CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H:
+	case CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200:
 	case CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H_XC4000:
 	case CX23885_BOARD_COMPRO_VIDEOMATE_E650F:
 	case CX23885_BOARD_COMPRO_VIDEOMATE_E800:
@@ -1769,6 +1808,7 @@ void cx23885_card_setup(struct cx23885_dev *dev)
 	case CX23885_BOARD_HAUPPAUGE_HVR1700:
 	case CX23885_BOARD_HAUPPAUGE_HVR1400:
 	case CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H:
+	case CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200:
 	case CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H_XC4000:
 	case CX23885_BOARD_COMPRO_VIDEOMATE_E650F:
 	case CX23885_BOARD_HAUPPAUGE_HVR1270:
@@ -1798,6 +1838,7 @@ void cx23885_card_setup(struct cx23885_dev *dev)
 	case CX23885_BOARD_HAUPPAUGE_HVR1800lp:
 	case CX23885_BOARD_HAUPPAUGE_HVR1700:
 	case CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H:
+	case CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200:
 	case CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H_XC4000:
 	case CX23885_BOARD_COMPRO_VIDEOMATE_E650F:
 	case CX23885_BOARD_NETUP_DUAL_DVBS2_CI:
diff --git a/drivers/media/pci/cx23885/cx23885-video.c b/drivers/media/pci/cx23885/cx23885-video.c
index 161686832b20..7891f34157d1 100644
--- a/drivers/media/pci/cx23885/cx23885-video.c
+++ b/drivers/media/pci/cx23885/cx23885-video.c
@@ -1865,7 +1865,8 @@ int cx23885_video_register(struct cx23885_dev *dev)
 
 			v4l2_subdev_call(sd, tuner, s_type_addr, &tun_setup);
 
-			if (dev->board == CX23885_BOARD_LEADTEK_WINFAST_PXTV1200) {
+			if ((dev->board == CX23885_BOARD_LEADTEK_WINFAST_PXTV1200) ||
+			    (dev->board == CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200)) {
 				struct xc2028_ctrl ctrl = {
 					.fname = XC2028_DEFAULT_FIRMWARE,
 					.max_len = 64
diff --git a/drivers/media/pci/cx23885/cx23885.h b/drivers/media/pci/cx23885/cx23885.h
index 2eb23d87c752..0fa4048ab872 100644
--- a/drivers/media/pci/cx23885/cx23885.h
+++ b/drivers/media/pci/cx23885/cx23885.h
@@ -95,6 +95,7 @@
 #define CX23885_BOARD_AVERMEDIA_HC81R          39
 #define CX23885_BOARD_TBS_6981                 40
 #define CX23885_BOARD_TBS_6980                 41
+#define CX23885_BOARD_LEADTEK_WINFAST_PXPVR2200 42
 
 #define GPIO_0 0x00000001
 #define GPIO_1 0x00000002
-- 
cgit 


From c56057557672b65c11e7f99c124670c2297743f0 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 14 Oct 2013 02:05:25 -0700
Subject: Bluetooth: Adjust header for proc socket information

The exposed socket information do not contain source or destination
addresses. So adjust the header accordingly.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/af_bluetooth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 61501c9b34f6..1f1a1118f489 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -611,7 +611,7 @@ static int bt_seq_show(struct seq_file *seq, void *v)
 	struct bt_sock_list *l = s->l;
 
 	if (v == SEQ_START_TOKEN) {
-		seq_puts(seq ,"sk               RefCnt Rmem   Wmem   User   Inode  Src Dst Parent");
+		seq_puts(seq ,"sk               RefCnt Rmem   Wmem   User   Inode  Parent");
 
 		if (l->custom_seq_show) {
 			seq_putc(seq, ' ');
-- 
cgit 


From bdc257830760a784370ae4ab2d682b252b983e77 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 14 Oct 2013 02:45:34 -0700
Subject: Bluetooth: Introduce L2CAP channel flag for defer setup

The L2CAP core should not look into the socket flags to figure out the
setting of defer setup. So introduce a L2CAP channel flag that mirrors
the socket flag.

Since the defer setup option is only set in one place this becomes a
really easy thing to do.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/l2cap.h |  1 +
 net/bluetooth/l2cap_core.c    | 15 +++++++--------
 net/bluetooth/l2cap_sock.c    |  7 +++++--
 3 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index a27d51dc39a4..1a38edee38e4 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -652,6 +652,7 @@ enum {
 	FLAG_FLUSHABLE,
 	FLAG_EXT_CTRL,
 	FLAG_EFS_ENABLE,
+	FLAG_DEFER_SETUP,
 };
 
 enum {
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index f6b5f94cbf39..e5819cb67372 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -655,14 +655,14 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason)
 	case BT_CONNECT2:
 		if (chan->chan_type == L2CAP_CHAN_CONN_ORIENTED &&
 		    conn->hcon->type == ACL_LINK) {
-			struct sock *sk = chan->sk;
 			struct l2cap_conn_rsp rsp;
 			__u16 result;
 
-			if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags))
+			if (test_bit(FLAG_DEFER_SETUP, &chan->flags))
 				result = L2CAP_CR_SEC_BLOCK;
 			else
 				result = L2CAP_CR_BAD_PSM;
+
 			l2cap_state_change(chan, BT_DISCONN);
 
 			rsp.scid   = cpu_to_le16(chan->dcid);
@@ -1294,16 +1294,16 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
 			l2cap_start_connection(chan);
 
 		} else if (chan->state == BT_CONNECT2) {
-			struct sock *sk = chan->sk;
 			struct l2cap_conn_rsp rsp;
 			char buf[128];
 			rsp.scid = cpu_to_le16(chan->dcid);
 			rsp.dcid = cpu_to_le16(chan->scid);
 
 			if (l2cap_chan_check_security(chan)) {
+				struct sock *sk = chan->sk;
+
 				lock_sock(sk);
-				if (test_bit(BT_SK_DEFER_SETUP,
-					     &bt_sk(sk)->flags)) {
+				if (test_bit(FLAG_DEFER_SETUP, &chan->flags)) {
 					rsp.result = __constant_cpu_to_le16(L2CAP_CR_PEND);
 					rsp.status = __constant_cpu_to_le16(L2CAP_CS_AUTHOR_PEND);
 					chan->ops->defer(chan);
@@ -3823,7 +3823,7 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 
 	if (conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE) {
 		if (l2cap_chan_check_security(chan)) {
-			if (test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) {
+			if (test_bit(FLAG_DEFER_SETUP, &chan->flags)) {
 				__l2cap_state_change(chan, BT_CONNECT2);
 				result = L2CAP_CR_PEND;
 				status = L2CAP_CS_AUTHOR_PEND;
@@ -6693,8 +6693,7 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
 			lock_sock(sk);
 
 			if (!status) {
-				if (test_bit(BT_SK_DEFER_SETUP,
-					     &bt_sk(sk)->flags)) {
+				if (test_bit(FLAG_DEFER_SETUP, &chan->flags)) {
 					res = L2CAP_CR_PEND;
 					stat = L2CAP_CS_AUTHOR_PEND;
 					chan->ops->defer(chan);
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index f1b462faf649..f5d957328545 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -672,10 +672,13 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname,
 			break;
 		}
 
-		if (opt)
+		if (opt) {
 			set_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);
-		else
+			set_bit(FLAG_DEFER_SETUP, &chan->flags);
+		} else {
 			clear_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags);
+			clear_bit(FLAG_DEFER_SETUP, &chan->flags);
+		}
 		break;
 
 	case BT_FLUSHABLE:
-- 
cgit 


From d97c899bde330cd1c76c3a162558177563a74362 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 14 Oct 2013 02:53:54 -0700
Subject: Bluetooth: Introduce L2CAP channel callback for resuming

Clearing the BT_SK_SUSPEND socket flag from the L2CAP core is causing
a dependency on the socket. So intead of doing that, use a channel
callback into the socket handling to resume.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/l2cap.h | 1 +
 net/bluetooth/l2cap_core.c    | 6 +-----
 net/bluetooth/l2cap_sock.c    | 9 +++++++++
 3 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 1a38edee38e4..07757a2af942 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -554,6 +554,7 @@ struct l2cap_ops {
 						 int state);
 	void			(*ready) (struct l2cap_chan *chan);
 	void			(*defer) (struct l2cap_chan *chan);
+	void			(*resume) (struct l2cap_chan *chan);
 	struct sk_buff		*(*alloc_skb) (struct l2cap_chan *chan,
 					       unsigned long len, int nb);
 };
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index e5819cb67372..0c3446da1ec9 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -6669,11 +6669,7 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
 
 		if (!status && (chan->state == BT_CONNECTED ||
 				chan->state == BT_CONFIG)) {
-			struct sock *sk = chan->sk;
-
-			clear_bit(BT_SK_SUSPEND, &bt_sk(sk)->flags);
-			sk->sk_state_change(sk);
-
+			chan->ops->resume(chan);
 			l2cap_check_encryption(chan, encrypt);
 			l2cap_chan_unlock(chan);
 			continue;
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index f5d957328545..fcf012a422fd 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1112,6 +1112,14 @@ static void l2cap_sock_defer_cb(struct l2cap_chan *chan)
 		parent->sk_data_ready(parent, 0);
 }
 
+static void l2cap_sock_resume_cb(struct l2cap_chan *chan)
+{
+	struct sock *sk = chan->data;
+
+	clear_bit(BT_SK_SUSPEND, &bt_sk(sk)->flags);
+	sk->sk_state_change(sk);
+}
+
 static struct l2cap_ops l2cap_chan_ops = {
 	.name		= "L2CAP Socket Interface",
 	.new_connection	= l2cap_sock_new_connection_cb,
@@ -1121,6 +1129,7 @@ static struct l2cap_ops l2cap_chan_ops = {
 	.state_change	= l2cap_sock_state_change_cb,
 	.ready		= l2cap_sock_ready_cb,
 	.defer		= l2cap_sock_defer_cb,
+	.resume		= l2cap_sock_resume_cb,
 	.alloc_skb	= l2cap_sock_alloc_skb_cb,
 };
 
-- 
cgit 


From 1b3ed70a1b22e54b6adaf6ffebe1aa6f26465bae Mon Sep 17 00:00:00 2001
From: Felipe Pena <felipensp@gmail.com>
Date: Sat, 12 Oct 2013 19:35:06 -0300
Subject: ASoC: fsl: Fix memory leak in imx-audmux.c

When audmux_clk is used and clk_prepare_enable function succeed,
the memory alloc'd to buf variable is leaked

Signed-off-by: Felipe Pena <felipensp@gmail.com>
Reviewed-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/imx-audmux.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/sound/soc/fsl/imx-audmux.c b/sound/soc/fsl/imx-audmux.c
index d3bf71a0ec56..ac869931d7f1 100644
--- a/sound/soc/fsl/imx-audmux.c
+++ b/sound/soc/fsl/imx-audmux.c
@@ -66,13 +66,10 @@ static ssize_t audmux_read_file(struct file *file, char __user *user_buf,
 				size_t count, loff_t *ppos)
 {
 	ssize_t ret;
-	char *buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+	char *buf;
 	int port = (int)file->private_data;
 	u32 pdcr, ptcr;
 
-	if (!buf)
-		return -ENOMEM;
-
 	if (audmux_clk) {
 		ret = clk_prepare_enable(audmux_clk);
 		if (ret)
@@ -85,6 +82,10 @@ static ssize_t audmux_read_file(struct file *file, char __user *user_buf,
 	if (audmux_clk)
 		clk_disable_unprepare(audmux_clk);
 
+	buf = kmalloc(PAGE_SIZE, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
 	ret = snprintf(buf, PAGE_SIZE, "PDCR: %08x\nPTCR: %08x\n",
 		       pdcr, ptcr);
 
-- 
cgit 


From 48afa793525800eff66a2e792037108b7f0d8613 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Sun, 13 Oct 2013 18:17:50 +0200
Subject: ASoC: atmel: don't use devm_pinctrl_get_select_default() in probe

Since commit ab78029 (drivers/pinctrl: grab default handles from device core),
we can rely on device core for setting the default pins.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org> (personally at LCE13)
Acked-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/atmel/atmel_wm8904.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/sound/soc/atmel/atmel_wm8904.c b/sound/soc/atmel/atmel_wm8904.c
index 7222380131ea..b4e36901a40b 100644
--- a/sound/soc/atmel/atmel_wm8904.c
+++ b/sound/soc/atmel/atmel_wm8904.c
@@ -12,7 +12,6 @@
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
-#include <linux/pinctrl/consumer.h>
 
 #include <sound/soc.h>
 
@@ -155,15 +154,8 @@ static int atmel_asoc_wm8904_probe(struct platform_device *pdev)
 	struct snd_soc_card *card = &atmel_asoc_wm8904_card;
 	struct snd_soc_dai_link *dailink = &atmel_asoc_wm8904_dailink;
 	struct clk *clk_src;
-	struct pinctrl *pinctrl;
 	int id, ret;
 
-	pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
-	if (IS_ERR(pinctrl)) {
-		dev_err(&pdev->dev, "failed to request pinctrl\n");
-		return PTR_ERR(pinctrl);
-	}
-
 	card->dev = &pdev->dev;
 	ret = atmel_asoc_wm8904_dt_init(pdev);
 	if (ret) {
-- 
cgit 


From 67093b253bb09276420c7b0a311425705d2714b4 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Sun, 13 Oct 2013 21:51:26 +0200
Subject: ASoC: fsl: remove leftover release_mem_region

When converting this driver to devm_ioremap_resource, the removal of this now
unneeded function has been forgotten.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/imx-ssi.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/sound/soc/fsl/imx-ssi.c b/sound/soc/fsl/imx-ssi.c
index f58bcd85c07f..02722897914d 100644
--- a/sound/soc/fsl/imx-ssi.c
+++ b/sound/soc/fsl/imx-ssi.c
@@ -615,7 +615,6 @@ failed_pcm_dma:
 failed_pcm_fiq:
 	snd_soc_unregister_component(&pdev->dev);
 failed_register:
-	release_mem_region(res->start, resource_size(res));
 	clk_disable_unprepare(ssi->clk);
 failed_clk:
 	snd_soc_set_ac97_ops(NULL);
@@ -625,7 +624,6 @@ failed_clk:
 
 static int imx_ssi_remove(struct platform_device *pdev)
 {
-	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	struct imx_ssi *ssi = platform_get_drvdata(pdev);
 
 	imx_pcm_dma_exit(pdev);
@@ -636,7 +634,6 @@ static int imx_ssi_remove(struct platform_device *pdev)
 	if (ssi->flags & IMX_SSI_USE_AC97)
 		ac97_ssi = NULL;
 
-	release_mem_region(res->start, resource_size(res));
 	clk_disable_unprepare(ssi->clk);
 	snd_soc_set_ac97_ops(NULL);
 
-- 
cgit 


From 8c88126bbbb1c1e6c499fb3c211dba93656f02b5 Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Sun, 29 Sep 2013 20:54:15 +0900
Subject: treewide: Fix typo in Kconfig

Correct spelling typo in Kconfig.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 arch/arm/mach-sti/Kconfig            | 4 ++--
 drivers/cpufreq/Kconfig.x86          | 2 +-
 drivers/dma/Kconfig                  | 2 +-
 drivers/fmc/Kconfig                  | 2 +-
 drivers/infiniband/ulp/isert/Kconfig | 4 ++--
 drivers/media/i2c/Kconfig            | 2 +-
 drivers/mfd/Kconfig                  | 4 ++--
 drivers/usb/core/Kconfig             | 2 +-
 net/vmw_vsock/Kconfig                | 2 +-
 9 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/arch/arm/mach-sti/Kconfig b/arch/arm/mach-sti/Kconfig
index 835833e3c4f8..a67f83fd3f78 100644
--- a/arch/arm/mach-sti/Kconfig
+++ b/arch/arm/mach-sti/Kconfig
@@ -30,7 +30,7 @@ config SOC_STIH415
 	default y
 	help
 	  This enables support for STMicroelectronics Digital Consumer
-	  Electronics family StiH415 parts, primarily targetted at set-top-box
+	  Electronics family StiH415 parts, primarily targeted at set-top-box
 	  and other digital audio/video applications using Flattned Device
 	  Trees.
 
@@ -39,7 +39,7 @@ config SOC_STIH416
 	default y
 	help
 	  This enables support for STMicroelectronics Digital Consumer
-	  Electronics family StiH416 parts, primarily targetted at set-top-box
+	  Electronics family StiH416 parts, primarily targeted at set-top-box
 	  and other digital audio/video applications using Flattened Device
 	  Trees.
 
diff --git a/drivers/cpufreq/Kconfig.x86 b/drivers/cpufreq/Kconfig.x86
index e2b6eabef221..b80bb4d7d6b4 100644
--- a/drivers/cpufreq/Kconfig.x86
+++ b/drivers/cpufreq/Kconfig.x86
@@ -136,7 +136,7 @@ config X86_AMD_FREQ_SENSITIVITY
 	help
 	  This adds AMD-specific powersave bias function to the ondemand
 	  governor, which allows it to make more power-conscious frequency
-	  change decisions based on feedback from hardware (availble on AMD
+	  change decisions based on feedback from hardware (available on AMD
 	  Family 16h and above).
 
 	  Hardware feedback tells software how "sensitive" to frequency changes
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index daa4da281e5e..6ada8b33e46a 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -300,7 +300,7 @@ config MMP_PDMA
 	depends on (ARCH_MMP || ARCH_PXA)
 	select DMA_ENGINE
 	help
-	  Support the MMP PDMA engine for PXA and MMP platfrom.
+	  Support the MMP PDMA engine for PXA and MMP platform.
 
 config DMA_JZ4740
 	tristate "JZ4740 DMA support"
diff --git a/drivers/fmc/Kconfig b/drivers/fmc/Kconfig
index c01cf45bc3d8..3a75f4256d08 100644
--- a/drivers/fmc/Kconfig
+++ b/drivers/fmc/Kconfig
@@ -46,6 +46,6 @@ config FMC_CHARDEV
 	  This driver matches every mezzanine device and allows user
 	  space to read and write registers using a char device. It
 	  can be used to write user-space drivers, or just get
-	  aquainted with a mezzanine before writing its specific driver.
+	  acquainted with a mezzanine before writing its specific driver.
 
 endif # FMC
diff --git a/drivers/infiniband/ulp/isert/Kconfig b/drivers/infiniband/ulp/isert/Kconfig
index ce3fd32167dc..02f9759ebb1a 100644
--- a/drivers/infiniband/ulp/isert/Kconfig
+++ b/drivers/infiniband/ulp/isert/Kconfig
@@ -1,5 +1,5 @@
 config INFINIBAND_ISERT
-	tristate "iSCSI Extentions for RDMA (iSER) target support"
+	tristate "iSCSI Extensions for RDMA (iSER) target support"
 	depends on INET && INFINIBAND_ADDR_TRANS && TARGET_CORE && ISCSI_TARGET
 	---help---
-	Support for iSCSI Extentions for RDMA (iSER) Target on Infiniband fabrics.
+	Support for iSCSI Extensions for RDMA (iSER) Target on Infiniband fabrics.
diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index d18be19c96cd..cbc9ee9bec2b 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -646,7 +646,7 @@ config VIDEO_UPD64083
 	  To compile this driver as a module, choose M here: the
 	  module will be called upd64083.
 
-comment "Miscelaneous helper chips"
+comment "Miscellaneous helper chips"
 
 config VIDEO_THS7303
 	tristate "THS7303/53 Video Amplifier"
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index aecd6ddcbbbf..a2f12ae69b1d 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -653,14 +653,14 @@ menu "STMicroelectronics STMPE Interface Drivers"
 depends on MFD_STMPE
 
 config STMPE_I2C
-	bool "STMicroelectronics STMPE I2C Inteface"
+	bool "STMicroelectronics STMPE I2C Interface"
 	depends on I2C=y
 	default y
 	help
 	  This is used to enable I2C interface of STMPE
 
 config STMPE_SPI
-	bool "STMicroelectronics STMPE SPI Inteface"
+	bool "STMicroelectronics STMPE SPI Interface"
 	depends on SPI_MASTER
 	help
 	  This is used to enable SPI interface of STMPE
diff --git a/drivers/usb/core/Kconfig b/drivers/usb/core/Kconfig
index db535b0aa172..fed7f68d025d 100644
--- a/drivers/usb/core/Kconfig
+++ b/drivers/usb/core/Kconfig
@@ -28,7 +28,7 @@ config USB_DEFAULT_PERSIST
 	bool "Enable USB persist by default"
 	default y
 	help
-	  Say N here if you don't want USB power session persistance
+	  Say N here if you don't want USB power session persistence
 	  enabled by default.  If you say N it will make suspended USB
 	  devices that lose power get reenumerated as if they had been
 	  unplugged, causing any mounted filesystems to be lost.  The
diff --git a/net/vmw_vsock/Kconfig b/net/vmw_vsock/Kconfig
index b5fa7e40cdcb..14810abedc2e 100644
--- a/net/vmw_vsock/Kconfig
+++ b/net/vmw_vsock/Kconfig
@@ -6,7 +6,7 @@ config VSOCKETS
 	tristate "Virtual Socket protocol"
 	help
 	  Virtual Socket Protocol is a socket protocol similar to TCP/IP
-	  allowing comunication between Virtual Machines and hypervisor
+	  allowing communication between Virtual Machines and hypervisor
 	  or host.
 
 	  You should also select one or more hypervisor-specific transports
-- 
cgit 


From 87f918685a452be514d060a09eeb4e0c91422e86 Mon Sep 17 00:00:00 2001
From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Fri, 4 Oct 2013 10:47:31 +0530
Subject: perf trace: Improve the error messages

Currently, execution of 'perf trace' reports the following cryptic
message to the user:

$ perf trace
Couldn't read the raw_syscalls tracepoints information!

Typically this happens because the user does not have permissions to
read the debugfs filesystem. Also handle the case when the kernel was
not compiled with debugfs support or when it isn't mounted.

Now, the tool prints detailed error messages:

$ perf trace
Error:	Unable to find debugfs
Hint:	Was your kernel was compiled with debugfs support?
Hint:	Is the debugfs filesystem mounted?
Hint:	Try 'sudo mount -t debugfs nodev /sys/kernel/debug'

$ perf trace
Error:	No permissions to read /sys/kernel/debug//tracing/events/raw_syscalls
Hint:	Try 'sudo mount -o remount,mode=755 /sys/kernel/debug/'

Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Link: http://lkml.kernel.org/r/1380863851-14460-1-git-send-email-artagnon@gmail.com
[ Added ready to use commands to fix the issues as extra hints, use the
  current debugfs mount point when reporting permission error, use
  strerror_r instead of the deprecated sys_errlist, as reported by David Ahern ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 37 ++++++++++++++++++++++++++++---------
 1 file changed, 28 insertions(+), 9 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 19ddcabc73d2..5496546b7c5c 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1590,17 +1590,13 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
 	}
 
 	if (perf_evlist__add_newtp(evlist, "raw_syscalls", "sys_enter", trace__sys_enter) ||
-	    perf_evlist__add_newtp(evlist, "raw_syscalls", "sys_exit", trace__sys_exit)) {
-		fprintf(trace->output, "Couldn't read the raw_syscalls tracepoints information!\n");
-		goto out_delete_evlist;
-	}
+		perf_evlist__add_newtp(evlist, "raw_syscalls", "sys_exit", trace__sys_exit))
+		goto out_error_tp;
 
 	if (trace->sched &&
-	    perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime",
-				   trace__sched_stat_runtime)) {
-		fprintf(trace->output, "Couldn't read the sched_stat_runtime tracepoint information!\n");
-		goto out_delete_evlist;
-	}
+		perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime",
+				trace__sched_stat_runtime))
+		goto out_error_tp;
 
 	err = perf_evlist__create_maps(evlist, &trace->opts.target);
 	if (err < 0) {
@@ -1717,6 +1713,29 @@ out_delete_evlist:
 out:
 	trace->live = false;
 	return err;
+out_error_tp:
+	switch(errno) {
+	case ENOENT:
+		fputs("Error:\tUnable to find debugfs\n"
+		      "Hint:\tWas your kernel was compiled with debugfs support?\n"
+		      "Hint:\tIs the debugfs filesystem mounted?\n"
+		      "Hint:\tTry 'sudo mount -t debugfs nodev /sys/kernel/debug'\n",
+		      trace->output);
+		break;
+	case EACCES:
+		fprintf(trace->output,
+			"Error:\tNo permissions to read %s/tracing/events/raw_syscalls\n"
+			"Hint:\tTry 'sudo mount -o remount,mode=755 %s'\n",
+			debugfs_mountpoint, debugfs_mountpoint);
+		break;
+	default: {
+		char bf[256];
+		fprintf(trace->output, "Can't trace: %s\n",
+			strerror_r(errno, bf, sizeof(bf)));
+	}
+		break;
+	}
+	goto out_delete_evlist;
 }
 
 static int trace__replay(struct trace *trace)
-- 
cgit 


From 6d3be300c658ce3f1777a6b1279414c62bc7d817 Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Mon, 30 Sep 2013 23:19:09 +0900
Subject: treewide: Fix typo in printk

Correct spelling typo within various part of the kernel

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/acpi/acpica/utobject.c                      | 2 +-
 drivers/media/i2c/adv7183.c                         | 2 +-
 drivers/media/i2c/s5c73m3/s5c73m3-core.c            | 2 +-
 drivers/mtd/nand/docg4.c                            | 2 +-
 drivers/net/ethernet/mellanox/mlx4/fw.c             | 2 +-
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c | 2 +-
 drivers/net/wireless/ath/ath10k/pci.c               | 2 +-
 drivers/regulator/tps65910-regulator.c              | 2 +-
 drivers/scsi/mvsas/mv_sas.c                         | 2 +-
 9 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/acpi/acpica/utobject.c b/drivers/acpi/acpica/utobject.c
index aa61f66ee861..2ae2b46d9b26 100644
--- a/drivers/acpi/acpica/utobject.c
+++ b/drivers/acpi/acpica/utobject.c
@@ -356,7 +356,7 @@ u8 acpi_ut_valid_internal_object(void *object)
 	default:
 
 		ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
-				  "%p is not not an ACPI operand obj [%s]\n",
+				  "%p is not an ACPI operand obj [%s]\n",
 				  object, acpi_ut_get_descriptor_name(object)));
 		break;
 	}
diff --git a/drivers/media/i2c/adv7183.c b/drivers/media/i2c/adv7183.c
index 6f738d8e3a8f..d45e0e3a781d 100644
--- a/drivers/media/i2c/adv7183.c
+++ b/drivers/media/i2c/adv7183.c
@@ -178,7 +178,7 @@ static int adv7183_log_status(struct v4l2_subdev *sd)
 			adv7183_read(sd, ADV7183_VS_FIELD_CTRL_1),
 			adv7183_read(sd, ADV7183_VS_FIELD_CTRL_2),
 			adv7183_read(sd, ADV7183_VS_FIELD_CTRL_3));
-	v4l2_info(sd, "adv7183: Hsync positon control 1 2 and 3 = 0x%02x 0x%02x 0x%02x\n",
+	v4l2_info(sd, "adv7183: Hsync position control 1 2 and 3 = 0x%02x 0x%02x 0x%02x\n",
 			adv7183_read(sd, ADV7183_HS_POS_CTRL_1),
 			adv7183_read(sd, ADV7183_HS_POS_CTRL_2),
 			adv7183_read(sd, ADV7183_HS_POS_CTRL_3));
diff --git a/drivers/media/i2c/s5c73m3/s5c73m3-core.c b/drivers/media/i2c/s5c73m3/s5c73m3-core.c
index b76ec0e7e685..31f40b342049 100644
--- a/drivers/media/i2c/s5c73m3/s5c73m3-core.c
+++ b/drivers/media/i2c/s5c73m3/s5c73m3-core.c
@@ -1651,7 +1651,7 @@ static int s5c73m3_probe(struct i2c_client *client,
 	if (ret < 0)
 		goto out_err;
 
-	v4l2_info(sd, "%s: completed succesfully\n", __func__);
+	v4l2_info(sd, "%s: completed successfully\n", __func__);
 	return 0;
 
 out_err:
diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c
index fa25e7a08134..a10491af52aa 100644
--- a/drivers/mtd/nand/docg4.c
+++ b/drivers/mtd/nand/docg4.c
@@ -494,7 +494,7 @@ static uint8_t docg4_read_byte(struct mtd_info *mtd)
 		return status;
 	}
 
-	dev_warn(doc->dev, "unexpectd call to read_byte()\n");
+	dev_warn(doc->dev, "unexpected call to read_byte()\n");
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index 0d63daa2f422..8a750ca326d0 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -1739,7 +1739,7 @@ void mlx4_opreq_action(struct work_struct *work)
 				   MLX4_CMD_GET_OP_REQ, MLX4_CMD_TIME_CLASS_A,
 				   MLX4_CMD_NATIVE);
 		if (err) {
-			mlx4_err(dev, "Failed to retreive required operation: %d\n",
+			mlx4_err(dev, "Failed to retrieve required operation: %d\n",
 				 err);
 			return;
 		}
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index 3ca00e05f23d..e8c56af97dfe 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -1722,7 +1722,7 @@ static void qlcnic_extend_lb_idc_cmpltn_wait(struct qlcnic_adapter *adapter,
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
 	int temp;
 
-	netdev_info(adapter->netdev, "Recieved loopback IDC time extend event for 0x%x seconds\n",
+	netdev_info(adapter->netdev, "Received loopback IDC time extend event for 0x%x seconds\n",
 		    ahw->extend_lb_time);
 	temp = ahw->extend_lb_time * 1000;
 	*max_wait_count += temp / QLC_83XX_LB_MSLEEP_COUNT;
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index e2f9ef50b1bd..d510bffa0a6a 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -2306,7 +2306,7 @@ static int ath10k_pci_probe(struct pci_dev *pdev,
 		break;
 	default:
 		ret = -ENODEV;
-		ath10k_err("Unkown device ID: %d\n", pci_dev->device);
+		ath10k_err("Unknown device ID: %d\n", pci_dev->device);
 		goto err_ar_pci;
 	}
 
diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c
index 45c16447744b..035eb750e28c 100644
--- a/drivers/regulator/tps65910-regulator.c
+++ b/drivers/regulator/tps65910-regulator.c
@@ -906,7 +906,7 @@ static int tps65910_set_ext_sleep_config(struct tps65910_reg *pmic,
 		}
 		ret = tps65910_reg_write(pmic->mfd, sr_reg_add, 0);
 		if (ret < 0) {
-			dev_err(mfd->dev, "Error in settting sr register\n");
+			dev_err(mfd->dev, "Error in setting sr register\n");
 			return ret;
 		}
 	}
diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index 6b1b4e91e53f..6c1f223a8e1d 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -1411,7 +1411,7 @@ static int mvs_exec_internal_tmf_task(struct domain_device *dev,
 
 		if (res) {
 			del_timer(&task->slow_task->timer);
-			mv_printk("executing internel task failed:%d\n", res);
+			mv_printk("executing internal task failed:%d\n", res);
 			goto ex_err;
 		}
 
-- 
cgit 


From 08b7e10716a518af01b07915dbb1938868bbf878 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 24 Sep 2013 10:16:20 +0900
Subject: SCSI: remove unnecessary pci_set_drvdata()

Since commit 0998d0631001288a5974afc0b2a5f568bcdecb4d
(device-core: Ensure drvdata = NULL when no driver is bound),
the driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: James Bottomley <JBottomley@parallels.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/scsi/arcmsr/arcmsr_hba.c          | 1 -
 drivers/scsi/atp870u.c                    | 2 --
 drivers/scsi/bfa/bfad.c                   | 1 -
 drivers/scsi/csiostor/csio_init.c         | 2 --
 drivers/scsi/dc395x.c                     | 1 -
 drivers/scsi/fnic/fnic_main.c             | 1 -
 drivers/scsi/gdth.c                       | 2 --
 drivers/scsi/hpsa.c                       | 1 -
 drivers/scsi/lpfc/lpfc_init.c             | 3 ---
 drivers/scsi/megaraid/megaraid_mbox.c     | 6 ------
 drivers/scsi/megaraid/megaraid_sas_base.c | 5 -----
 drivers/scsi/mvsas/mv_init.c              | 1 -
 drivers/scsi/mvumi.c                      | 2 --
 drivers/scsi/pm8001/pm8001_init.c         | 1 -
 drivers/scsi/pmcraid.c                    | 1 -
 drivers/scsi/qla2xxx/qla_os.c             | 1 -
 drivers/scsi/qla4xxx/ql4_os.c             | 1 -
 drivers/scsi/stex.c                       | 2 --
 drivers/scsi/tmscsim.c                    | 1 -
 drivers/scsi/ufs/ufshcd-pci.c             | 1 -
 drivers/scsi/vmw_pvscsi.c                 | 2 --
 21 files changed, 38 deletions(-)

diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index 33c52bc2c7b4..97fd450aff09 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -1035,7 +1035,6 @@ static void arcmsr_remove(struct pci_dev *pdev)
 	pci_release_regions(pdev);
 	scsi_host_put(host);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 static void arcmsr_shutdown(struct pci_dev *pdev)
diff --git a/drivers/scsi/atp870u.c b/drivers/scsi/atp870u.c
index 15a629d8ed08..a795d81ef875 100644
--- a/drivers/scsi/atp870u.c
+++ b/drivers/scsi/atp870u.c
@@ -3144,8 +3144,6 @@ static void atp870u_remove (struct pci_dev *pdev)
 	atp870u_free_tables(pshost);
 	printk(KERN_INFO "scsi_host_put : %p\n",pshost);
 	scsi_host_put(pshost);
-	printk(KERN_INFO "pci_set_drvdata : %p\n",pdev);
-	pci_set_drvdata(pdev, NULL);	
 }
 MODULE_LICENSE("GPL");
 
diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index f8ca7becacca..2e6e3ac2d41b 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -833,7 +833,6 @@ bfad_pci_uninit(struct pci_dev *pdev, struct bfad_s *bfad)
 	/* Disable PCIE Advanced Error Recovery (AER) */
 	pci_disable_pcie_error_reporting(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 bfa_status_t
diff --git a/drivers/scsi/csiostor/csio_init.c b/drivers/scsi/csiostor/csio_init.c
index 00346fe939d5..1aafc331ee63 100644
--- a/drivers/scsi/csiostor/csio_init.c
+++ b/drivers/scsi/csiostor/csio_init.c
@@ -1010,7 +1010,6 @@ err_lnode_exit:
 	csio_hw_stop(hw);
 	spin_unlock_irq(&hw->lock);
 	csio_lnodes_unblock_request(hw);
-	pci_set_drvdata(hw->pdev, NULL);
 	csio_lnodes_exit(hw, 0);
 	csio_hw_free(hw);
 err_pci_exit:
@@ -1044,7 +1043,6 @@ static void csio_remove_one(struct pci_dev *pdev)
 
 	csio_lnodes_exit(hw, 0);
 	csio_hw_free(hw);
-	pci_set_drvdata(pdev, NULL);
 	csio_pci_exit(pdev, &bars);
 }
 
diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c
index 694e13c45dfd..a726187abe5c 100644
--- a/drivers/scsi/dc395x.c
+++ b/drivers/scsi/dc395x.c
@@ -4859,7 +4859,6 @@ static void dc395x_remove_one(struct pci_dev *dev)
 	adapter_uninit(acb);
 	pci_disable_device(dev);
 	scsi_host_put(scsi_host);
-	pci_set_drvdata(dev, NULL);
 }
 
 
diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c
index 42e15ee6e1bb..d08dc12082c9 100644
--- a/drivers/scsi/fnic/fnic_main.c
+++ b/drivers/scsi/fnic/fnic_main.c
@@ -877,7 +877,6 @@ static void fnic_remove(struct pci_dev *pdev)
 	fnic_iounmap(fnic);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 	scsi_host_put(lp->host);
 }
 
diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c
index 6d55b4e7e792..ee4fa40a50b1 100644
--- a/drivers/scsi/gdth.c
+++ b/drivers/scsi/gdth.c
@@ -594,8 +594,6 @@ static void gdth_pci_remove_one(struct pci_dev *pdev)
 {
 	gdth_ha_str *ha = pci_get_drvdata(pdev);
 
-	pci_set_drvdata(pdev, NULL);
-
 	list_del(&ha->list);
 	gdth_remove_one(ha);
 
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index fac8cf5832dd..a4320bcc40f2 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -4994,7 +4994,6 @@ static void hpsa_remove_one(struct pci_dev *pdev)
 	kfree(h->hba_inquiry_data);
 	pci_disable_device(pdev);
 	pci_release_regions(pdev);
-	pci_set_drvdata(pdev, NULL);
 	kfree(h);
 }
 
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 501147c4a147..c1fca8df6355 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -4581,8 +4581,6 @@ lpfc_disable_pci_dev(struct lpfc_hba *phba)
 	/* Release PCI resource and disable PCI device */
 	pci_release_selected_regions(pdev, bars);
 	pci_disable_device(pdev);
-	/* Null out PCI private reference to driver */
-	pci_set_drvdata(pdev, NULL);
 
 	return;
 }
@@ -9421,7 +9419,6 @@ lpfc_pci_remove_one_s3(struct pci_dev *pdev)
 	/* Disable interrupt */
 	lpfc_sli_disable_intr(phba);
 
-	pci_set_drvdata(pdev, NULL);
 	scsi_host_put(shost);
 
 	/*
diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
index 515c9629e9fe..d1a4b82836ea 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.c
+++ b/drivers/scsi/megaraid/megaraid_mbox.c
@@ -534,7 +534,6 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	return 0;
 
 out_cmm_unreg:
-	pci_set_drvdata(pdev, NULL);
 	megaraid_cmm_unregister(adapter);
 out_fini_mbox:
 	megaraid_fini_mbox(adapter);
@@ -594,11 +593,6 @@ megaraid_detach_one(struct pci_dev *pdev)
 	// detach from the IO sub-system
 	megaraid_io_detach(adapter);
 
-	// reset the device state in the PCI structure. We check this
-	// condition when we enter here. If the device state is NULL,
-	// that would mean the device has already been removed
-	pci_set_drvdata(pdev, NULL);
-
 	// Unregister from common management module
 	//
 	// FIXME: this must return success or failure for conditions if there
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 1f0ca68409d4..fdd13ef8124f 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -4323,7 +4323,6 @@ retry_irq_register:
 	megasas_mgmt_info.instance[megasas_mgmt_info.max_index] = NULL;
 	megasas_mgmt_info.max_index--;
 
-	pci_set_drvdata(pdev, NULL);
 	instance->instancet->disable_intr(instance);
 	if (instance->msix_vectors)
 		for (i = 0 ; i < instance->msix_vectors; i++)
@@ -4679,8 +4678,6 @@ static void megasas_detach_one(struct pci_dev *pdev)
 		}
 	}
 
-	pci_set_drvdata(instance->pdev, NULL);
-
 	instance->instancet->disable_intr(instance);
 
 	if (instance->msix_vectors)
@@ -4722,8 +4719,6 @@ static void megasas_detach_one(struct pci_dev *pdev)
 				instance->evt_detail, instance->evt_detail_h);
 	scsi_host_put(host);
 
-	pci_set_drvdata(pdev, NULL);
-
 	pci_disable_device(pdev);
 
 	return;
diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index 7b7381d7671f..5ff978be249d 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -657,7 +657,6 @@ static void mvs_pci_remove(struct pci_dev *pdev)
 	tasklet_kill(&((struct mvs_prv_info *)sha->lldd_ha)->mv_tasklet);
 #endif
 
-	pci_set_drvdata(pdev, NULL);
 	sas_unregister_ha(sha);
 	sas_remove_host(mvi->shost);
 	scsi_remove_host(mvi->shost);
diff --git a/drivers/scsi/mvumi.c b/drivers/scsi/mvumi.c
index c3601b57a80c..edbee8dc62c9 100644
--- a/drivers/scsi/mvumi.c
+++ b/drivers/scsi/mvumi.c
@@ -2583,7 +2583,6 @@ static int mvumi_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	return 0;
 
 fail_io_attach:
-	pci_set_drvdata(pdev, NULL);
 	mhba->instancet->disable_intr(mhba);
 	free_irq(mhba->pdev->irq, mhba);
 fail_init_irq:
@@ -2618,7 +2617,6 @@ static void mvumi_detach_one(struct pci_dev *pdev)
 	free_irq(mhba->pdev->irq, mhba);
 	mvumi_release_fw(mhba);
 	scsi_host_put(host);
-	pci_set_drvdata(pdev, NULL);
 	pci_disable_device(pdev);
 	dev_dbg(&pdev->dev, "driver is removed!\n");
 }
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index f7c189606b84..0dba7c7856ab 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -873,7 +873,6 @@ static void pm8001_pci_remove(struct pci_dev *pdev)
 	struct pm8001_hba_info *pm8001_ha;
 	int i;
 	pm8001_ha = sha->lldd_ha;
-	pci_set_drvdata(pdev, NULL);
 	sas_unregister_ha(sha);
 	sas_remove_host(pm8001_ha->shost);
 	list_del(&pm8001_ha->list);
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index 1eb7b0280a45..e43db7742047 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -6049,7 +6049,6 @@ out_release_regions:
 
 out_disable_device:
 	atomic_dec(&pmcraid_adapter_count);
-	pci_set_drvdata(pdev, NULL);
 	pci_disable_device(pdev);
 	return -ENODEV;
 }
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 9f01bbbf3a26..1db4819261cd 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -3183,7 +3183,6 @@ qla2x00_remove_one(struct pci_dev *pdev)
 	pci_disable_pcie_error_reporting(pdev);
 
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 static void
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index f8a0a26a3cd4..1be6cefc390b 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -7400,7 +7400,6 @@ static void qla4xxx_remove_adapter(struct pci_dev *pdev)
 
 	pci_disable_pcie_error_reporting(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 /**
diff --git a/drivers/scsi/stex.c b/drivers/scsi/stex.c
index 325c31caa6e0..1aa4befcfbd0 100644
--- a/drivers/scsi/stex.c
+++ b/drivers/scsi/stex.c
@@ -1790,8 +1790,6 @@ static void stex_remove(struct pci_dev *pdev)
 
 	scsi_remove_host(hba->host);
 
-	pci_set_drvdata(pdev, NULL);
-
 	stex_hba_stop(hba);
 
 	stex_hba_free(hba);
diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c
index 9327f5fcec4e..b06a1dea8818 100644
--- a/drivers/scsi/tmscsim.c
+++ b/drivers/scsi/tmscsim.c
@@ -2553,7 +2553,6 @@ static void dc390_remove_one(struct pci_dev *dev)
 
 	pci_disable_device(dev);
 	scsi_host_put(scsi_host);
-	pci_set_drvdata(dev, NULL);
 }
 
 static struct pci_device_id tmscsim_pci_tbl[] = {
diff --git a/drivers/scsi/ufs/ufshcd-pci.c b/drivers/scsi/ufs/ufshcd-pci.c
index a823cf44e949..8b9531204c2b 100644
--- a/drivers/scsi/ufs/ufshcd-pci.c
+++ b/drivers/scsi/ufs/ufshcd-pci.c
@@ -132,7 +132,6 @@ static void ufshcd_pci_remove(struct pci_dev *pdev)
 	pm_runtime_forbid(&pdev->dev);
 	pm_runtime_get_noresume(&pdev->dev);
 	ufshcd_remove(hba);
-	pci_set_drvdata(pdev, NULL);
 }
 
 /**
diff --git a/drivers/scsi/vmw_pvscsi.c b/drivers/scsi/vmw_pvscsi.c
index 3bfaa66fa0d1..b9755ec0e812 100644
--- a/drivers/scsi/vmw_pvscsi.c
+++ b/drivers/scsi/vmw_pvscsi.c
@@ -1405,7 +1405,6 @@ out_release_resources:
 out_free_host:
 	scsi_host_put(host);
 out_disable_device:
-	pci_set_drvdata(pdev, NULL);
 	pci_disable_device(pdev);
 
 	return error;
@@ -1445,7 +1444,6 @@ static void pvscsi_remove(struct pci_dev *pdev)
 
 	scsi_host_put(host);
 
-	pci_set_drvdata(pdev, NULL);
 	pci_disable_device(pdev);
 }
 
-- 
cgit 


From fe2fd5cc050885483190fc17f72fac27404253d7 Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Wed, 25 Sep 2013 16:08:46 -0300
Subject: clk: fixed-factor: Fix a trivial typo

Just a trivial print message typo fix.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/clk/clk-fixed-factor.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/clk-fixed-factor.c b/drivers/clk/clk-fixed-factor.c
index 9ff7d510faa3..47bdfca6a4ec 100644
--- a/drivers/clk/clk-fixed-factor.c
+++ b/drivers/clk/clk-fixed-factor.c
@@ -115,7 +115,7 @@ void __init of_fixed_factor_clk_setup(struct device_node *node)
 	}
 
 	if (of_property_read_u32(node, "clock-mult", &mult)) {
-		pr_err("%s Fixed factor clock <%s> must have a clokc-mult property\n",
+		pr_err("%s Fixed factor clock <%s> must have a clock-mult property\n",
 			__func__, node->name);
 		return;
 	}
-- 
cgit 


From 0585123ebbd07a4fb49558ed6dea5fced967841a Mon Sep 17 00:00:00 2001
From: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Thu, 26 Sep 2013 16:50:21 +0200
Subject: Correct some typos for word frequency

Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/cpufreq/exynos-cpufreq.c | 2 +-
 include/linux/devfreq.h          | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index 0fac34439e31..b4afd078fe05 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -77,7 +77,7 @@ static int exynos_cpufreq_scale(unsigned int target_freq)
 	/*
 	 * The policy max have been changed so that we cannot get proper
 	 * old_index with cpufreq_frequency_table_target(). Thus, ignore
-	 * policy and get the index from the raw freqeuncy table.
+	 * policy and get the index from the raw frequency table.
 	 */
 	old_index = exynos_cpufreq_get_index(freqs.old);
 	if (old_index < 0) {
diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
index 5f1ab92107e6..32acc0090ce6 100644
--- a/include/linux/devfreq.h
+++ b/include/linux/devfreq.h
@@ -168,7 +168,7 @@ struct devfreq {
 	unsigned long max_freq;
 	bool stop_polling;
 
-	/* information for device freqeuncy transition */
+	/* information for device frequency transition */
 	unsigned int total_trans;
 	unsigned int *trans_table;
 	unsigned long *time_in_state;
-- 
cgit 


From 1a49123b34346154ffd70f0b60dce007f1605676 Mon Sep 17 00:00:00 2001
From: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Date: Thu, 3 Oct 2013 19:38:14 +0800
Subject: __page_to_pfn: Fix typo in comment

Fix typo in __page_to_pfn comment: s/encorded/encoded.

Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 include/asm-generic/memory_model.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/asm-generic/memory_model.h b/include/asm-generic/memory_model.h
index aea9e45efce6..14909b0b9cae 100644
--- a/include/asm-generic/memory_model.h
+++ b/include/asm-generic/memory_model.h
@@ -53,7 +53,7 @@
 
 #elif defined(CONFIG_SPARSEMEM)
 /*
- * Note: section's mem_map is encorded to reflect its start_pfn.
+ * Note: section's mem_map is encoded to reflect its start_pfn.
  * section[i].section_mem_map == mem_map's address - start_pfn;
  */
 #define __page_to_pfn(pg)					\
-- 
cgit 


From 813335b8b27d9ceeb67a073f501ada8b8dde37a7 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Tue, 8 Oct 2013 21:26:52 -0600
Subject: perf util: Add findnew method to intlist

Similar to other findnew based methods if the requested object is not
found, add it to the list.

v2: followed format of other findnew methods per acme's request

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1381289214-24885-2-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/intlist.c | 22 ++++++++++++++++++----
 tools/perf/util/intlist.h |  1 +
 tools/perf/util/rblist.c  | 27 ++++++++++++++++++++++++---
 tools/perf/util/rblist.h  |  1 +
 4 files changed, 44 insertions(+), 7 deletions(-)

diff --git a/tools/perf/util/intlist.c b/tools/perf/util/intlist.c
index 826d7b38c9a0..89715b64a315 100644
--- a/tools/perf/util/intlist.c
+++ b/tools/perf/util/intlist.c
@@ -58,22 +58,36 @@ void intlist__remove(struct intlist *ilist, struct int_node *node)
 	rblist__remove_node(&ilist->rblist, &node->rb_node);
 }
 
-struct int_node *intlist__find(struct intlist *ilist, int i)
+static struct int_node *__intlist__findnew(struct intlist *ilist,
+					   int i, bool create)
 {
-	struct int_node *node;
+	struct int_node *node = NULL;
 	struct rb_node *rb_node;
 
 	if (ilist == NULL)
 		return NULL;
 
-	node = NULL;
-	rb_node = rblist__find(&ilist->rblist, (void *)((long)i));
+	if (create)
+		rb_node = rblist__findnew(&ilist->rblist, (void *)((long)i));
+	else
+		rb_node = rblist__find(&ilist->rblist, (void *)((long)i));
+
 	if (rb_node)
 		node = container_of(rb_node, struct int_node, rb_node);
 
 	return node;
 }
 
+struct int_node *intlist__find(struct intlist *ilist, int i)
+{
+	return __intlist__findnew(ilist, i, false);
+}
+
+struct int_node *intlist__findnew(struct intlist *ilist, int i)
+{
+	return __intlist__findnew(ilist, i, true);
+}
+
 static int intlist__parse_list(struct intlist *ilist, const char *s)
 {
 	char *sep;
diff --git a/tools/perf/util/intlist.h b/tools/perf/util/intlist.h
index 0eb00ac39e01..aa6877d36858 100644
--- a/tools/perf/util/intlist.h
+++ b/tools/perf/util/intlist.h
@@ -24,6 +24,7 @@ int intlist__add(struct intlist *ilist, int i);
 
 struct int_node *intlist__entry(const struct intlist *ilist, unsigned int idx);
 struct int_node *intlist__find(struct intlist *ilist, int i);
+struct int_node *intlist__findnew(struct intlist *ilist, int i);
 
 static inline bool intlist__has_entry(struct intlist *ilist, int i)
 {
diff --git a/tools/perf/util/rblist.c b/tools/perf/util/rblist.c
index a16cdd2625ad..0dfe27d99458 100644
--- a/tools/perf/util/rblist.c
+++ b/tools/perf/util/rblist.c
@@ -48,10 +48,12 @@ void rblist__remove_node(struct rblist *rblist, struct rb_node *rb_node)
 	rblist->node_delete(rblist, rb_node);
 }
 
-struct rb_node *rblist__find(struct rblist *rblist, const void *entry)
+static struct rb_node *__rblist__findnew(struct rblist *rblist,
+					 const void *entry,
+					 bool create)
 {
 	struct rb_node **p = &rblist->entries.rb_node;
-	struct rb_node *parent = NULL;
+	struct rb_node *parent = NULL, *new_node = NULL;
 
 	while (*p != NULL) {
 		int rc;
@@ -67,7 +69,26 @@ struct rb_node *rblist__find(struct rblist *rblist, const void *entry)
 			return parent;
 	}
 
-	return NULL;
+	if (create) {
+		new_node = rblist->node_new(rblist, entry);
+		if (new_node) {
+			rb_link_node(new_node, parent, p);
+			rb_insert_color(new_node, &rblist->entries);
+			++rblist->nr_entries;
+		}
+	}
+
+	return new_node;
+}
+
+struct rb_node *rblist__find(struct rblist *rblist, const void *entry)
+{
+	return __rblist__findnew(rblist, entry, false);
+}
+
+struct rb_node *rblist__findnew(struct rblist *rblist, const void *entry)
+{
+	return __rblist__findnew(rblist, entry, true);
 }
 
 void rblist__init(struct rblist *rblist)
diff --git a/tools/perf/util/rblist.h b/tools/perf/util/rblist.h
index 6d0cae5ae83d..ff9913b994c2 100644
--- a/tools/perf/util/rblist.h
+++ b/tools/perf/util/rblist.h
@@ -32,6 +32,7 @@ void rblist__delete(struct rblist *rblist);
 int rblist__add_node(struct rblist *rblist, const void *new_entry);
 void rblist__remove_node(struct rblist *rblist, struct rb_node *rb_node);
 struct rb_node *rblist__find(struct rblist *rblist, const void *entry);
+struct rb_node *rblist__findnew(struct rblist *rblist, const void *entry);
 struct rb_node *rblist__entry(const struct rblist *rblist, unsigned int idx);
 
 static inline bool rblist__empty(const struct rblist *rblist)
-- 
cgit 


From bf2575c121ca11247ef07fd02b43f7430834f7b1 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Tue, 8 Oct 2013 21:26:53 -0600
Subject: perf trace: Add summary option to dump syscall statistics

When enabled dumps a summary of all syscalls by task with the usual
statistics -- min, max, average and relative stddev. For example,

make - 26341 :       3344   [ 17.4% ]      0.000 ms

                read :   52    0.000     4.802     0.644   30.08
               write :   20    0.004     0.036     0.010   21.72
                open :   24    0.003     0.046     0.014   23.68
               close :   64    0.002     0.055     0.008   22.53
                stat : 2714    0.002     0.222     0.004    4.47
               fstat :   18    0.001     0.041     0.006   46.26
                mmap :   30    0.003     0.009     0.006    5.71
            mprotect :    8    0.006     0.039     0.016   32.16
              munmap :   12    0.007     0.077     0.020   38.25
                 brk :   48    0.002     0.014     0.004   10.18
        rt_sigaction :   18    0.002     0.002     0.002    2.11
      rt_sigprocmask :   60    0.002     0.128     0.010   32.88
              access :    2    0.006     0.006     0.006    0.00
                pipe :   12    0.004     0.048     0.013   35.98
               vfork :   34    0.448     0.980     0.692    3.04
              execve :   20    0.000     0.387     0.046   56.66
               wait4 :   34    0.017  9923.287   593.221   68.45
               fcntl :    8    0.001     0.041     0.013   48.79
            getdents :   48    0.002     0.079     0.013   19.62
              getcwd :    2    0.005     0.005     0.005    0.00
               chdir :    2    0.070     0.070     0.070    0.00
           getrlimit :    2    0.045     0.045     0.045    0.00
          arch_prctl :    2    0.002     0.002     0.002    0.00
           setrlimit :    2    0.002     0.002     0.002    0.00
              openat :   94    0.003     0.005     0.003    2.11

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1381289214-24885-3-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-trace.txt |   4 ++
 tools/perf/builtin-trace.c              | 110 ++++++++++++++++++++++++++++----
 2 files changed, 102 insertions(+), 12 deletions(-)

diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt
index 1a224862118f..54139c6457f8 100644
--- a/tools/perf/Documentation/perf-trace.txt
+++ b/tools/perf/Documentation/perf-trace.txt
@@ -93,6 +93,10 @@ the thread executes on the designated CPUs. Default is to monitor all CPUs.
 --comm::
         Show process COMM right beside its ID, on by default, disable with --no-comm.
 
+--summary::
+	Show a summary of syscalls by thread with min, max, and average times (in
+    msec) and relative stddev.
+
 SEE ALSO
 --------
 linkperf:perf-record[1], linkperf:perf-script[1]
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 5496546b7c5c..d0f91fe755a3 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -10,6 +10,7 @@
 #include "util/strlist.h"
 #include "util/intlist.h"
 #include "util/thread_map.h"
+#include "util/stat.h"
 
 #include <libaudit.h>
 #include <stdlib.h>
@@ -909,6 +910,8 @@ struct thread_trace {
 		int	  max;
 		char	  **table;
 	} paths;
+
+	struct intlist *syscall_stats;
 };
 
 static struct thread_trace *thread_trace__new(void)
@@ -918,6 +921,8 @@ static struct thread_trace *thread_trace__new(void)
 	if (ttrace)
 		ttrace->paths.max = -1;
 
+	ttrace->syscall_stats = intlist__new(NULL);
+
 	return ttrace;
 }
 
@@ -964,6 +969,7 @@ struct trace {
 	struct intlist		*pid_list;
 	bool			sched;
 	bool			multiple_threads;
+	bool			summary;
 	bool			show_comm;
 	double			duration_filter;
 	double			runtime_ms;
@@ -1291,10 +1297,8 @@ typedef int (*tracepoint_handler)(struct trace *trace, struct perf_evsel *evsel,
 				  struct perf_sample *sample);
 
 static struct syscall *trace__syscall_info(struct trace *trace,
-					   struct perf_evsel *evsel,
-					   struct perf_sample *sample)
+					   struct perf_evsel *evsel, int id)
 {
-	int id = perf_evsel__intval(evsel, sample, "id");
 
 	if (id < 0) {
 
@@ -1335,6 +1339,32 @@ out_cant_read:
 	return NULL;
 }
 
+static void thread__update_stats(struct thread_trace *ttrace,
+				 int id, struct perf_sample *sample)
+{
+	struct int_node *inode;
+	struct stats *stats;
+	u64 duration = 0;
+
+	inode = intlist__findnew(ttrace->syscall_stats, id);
+	if (inode == NULL)
+		return;
+
+	stats = inode->priv;
+	if (stats == NULL) {
+		stats = malloc(sizeof(struct stats));
+		if (stats == NULL)
+			return;
+		init_stats(stats);
+		inode->priv = stats;
+	}
+
+	if (ttrace->entry_time && sample->time > ttrace->entry_time)
+		duration = sample->time - ttrace->entry_time;
+
+	update_stats(stats, duration);
+}
+
 static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
 			    struct perf_sample *sample)
 {
@@ -1342,7 +1372,8 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
 	void *args;
 	size_t printed = 0;
 	struct thread *thread;
-	struct syscall *sc = trace__syscall_info(trace, evsel, sample);
+	int id = perf_evsel__intval(evsel, sample, "id");
+	struct syscall *sc = trace__syscall_info(trace, evsel, id);
 	struct thread_trace *ttrace;
 
 	if (sc == NULL)
@@ -1394,7 +1425,8 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
 	int ret;
 	u64 duration = 0;
 	struct thread *thread;
-	struct syscall *sc = trace__syscall_info(trace, evsel, sample);
+	int id = perf_evsel__intval(evsel, sample, "id");
+	struct syscall *sc = trace__syscall_info(trace, evsel, id);
 	struct thread_trace *ttrace;
 
 	if (sc == NULL)
@@ -1408,6 +1440,9 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
 	if (ttrace == NULL)
 		return -1;
 
+	if (trace->summary)
+		thread__update_stats(ttrace, id, sample);
+
 	ret = perf_evsel__intval(evsel, sample, "ret");
 
 	ttrace = thread->priv;
@@ -1574,6 +1609,8 @@ static int trace__record(int argc, const char **argv)
 	return cmd_record(i, rec_argv, NULL);
 }
 
+static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp);
+
 static int trace__run(struct trace *trace, int argc, const char **argv)
 {
 	struct perf_evlist *evlist = perf_evlist__new();
@@ -1703,6 +1740,9 @@ again:
 	goto again;
 
 out_unmap_evlist:
+	if (!err && trace->summary)
+		trace__fprintf_thread_summary(trace, trace->output);
+
 	perf_evlist__munmap(evlist);
 out_close_evlist:
 	perf_evlist__close(evlist);
@@ -1798,6 +1838,9 @@ static int trace__replay(struct trace *trace)
 	if (err)
 		pr_err("Failed to process events, error %d", err);
 
+	else if (trace->summary)
+		trace__fprintf_thread_summary(trace, trace->output);
+
 out:
 	perf_session__delete(session);
 
@@ -1808,10 +1851,53 @@ static size_t trace__fprintf_threads_header(FILE *fp)
 {
 	size_t printed;
 
-	printed  = fprintf(fp, "\n _____________________________________________________________________\n");
-	printed += fprintf(fp," __)    Summary of events    (__\n\n");
-	printed += fprintf(fp,"              [ task - pid ]     [ events ] [ ratio ]  [ runtime ]\n");
-	printed += fprintf(fp," _____________________________________________________________________\n\n");
+	printed  = fprintf(fp, "\n _____________________________________________________________________________\n");
+	printed += fprintf(fp, " __)    Summary of events    (__\n\n");
+	printed += fprintf(fp, "              [ task - pid ]     [ events ] [ ratio ]  [ runtime ]\n");
+	printed += fprintf(fp, "                                  syscall  count    min     max    avg  stddev\n");
+	printed += fprintf(fp, "                                                   msec    msec   msec     %%\n");
+	printed += fprintf(fp, " _____________________________________________________________________________\n\n");
+
+	return printed;
+}
+
+static size_t thread__dump_stats(struct thread_trace *ttrace,
+				 struct trace *trace, FILE *fp)
+{
+	struct stats *stats;
+	size_t printed = 0;
+	struct syscall *sc;
+	struct int_node *inode = intlist__first(ttrace->syscall_stats);
+
+	if (inode == NULL)
+		return 0;
+
+	printed += fprintf(fp, "\n");
+
+	/* each int_node is a syscall */
+	while (inode) {
+		stats = inode->priv;
+		if (stats) {
+			double min = (double)(stats->min) / NSEC_PER_MSEC;
+			double max = (double)(stats->max) / NSEC_PER_MSEC;
+			double avg = avg_stats(stats);
+			double pct;
+			u64 n = (u64) stats->n;
+
+			pct = avg ? 100.0 * stddev_stats(stats)/avg : 0.0;
+			avg /= NSEC_PER_MSEC;
+
+			sc = &trace->syscalls.table[inode->i];
+			printed += fprintf(fp, "%24s  %14s : ", "", sc->name);
+			printed += fprintf(fp, "%5" PRIu64 "  %8.3f  %8.3f",
+					   n, min, max);
+			printed += fprintf(fp, "  %8.3f  %6.2f\n", avg, pct);
+		}
+
+		inode = intlist__next(inode);
+	}
+
+	printed += fprintf(fp, "\n\n");
 
 	return printed;
 }
@@ -1850,6 +1936,7 @@ static int trace__fprintf_one_thread(struct thread *thread, void *priv)
 	printed += fprintf(fp, " - %-5d :%11lu   [", thread->tid, ttrace->nr_events);
 	printed += color_fprintf(fp, color, "%5.1f%%", ratio);
 	printed += fprintf(fp, " ] %10.3f ms\n", ttrace->runtime_ms);
+	printed += thread__dump_stats(ttrace, trace, fp);
 
 	data->printed += printed;
 
@@ -1953,6 +2040,8 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
 	OPT_INCR('v', "verbose", &verbose, "be more verbose"),
 	OPT_BOOLEAN('T', "time", &trace.full_time,
 		    "Show full timestamp, not time relative to first start"),
+	OPT_BOOLEAN(0, "summary", &trace.summary,
+		    "Show syscall summary with statistics"),
 	OPT_END()
 	};
 	int err;
@@ -2008,9 +2097,6 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
 	else
 		err = trace__run(&trace, argc, argv);
 
-	if (trace.sched && !err)
-		trace__fprintf_thread_summary(&trace, trace.output);
-
 out_close:
 	if (output_name != NULL)
 		fclose(trace.output);
-- 
cgit 


From a949fffb84df6f9be136198a00f796a9dc696bd0 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Wed, 9 Oct 2013 21:51:31 -0600
Subject: perf tools: Fix old GCC build error in 'get_srcline'
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

trace-event-parse.c:parse_proc_kallsyms()

    Old GCC (4.4.2) does not see through the code flow of get_srcline() and
gets confused about the status of 'file' and 'line':

    CC       /tmp/build/perf/util/srcline.o
  cc1: warnings being treated as errors
  util/srcline.c: In function ¿get_srcline¿:
  util/srcline.c:226: error: ¿file¿ may be used uninitialized in this function
  util/srcline.c:227: error: ¿line¿ may be used uninitialized in this function
  make[1]: *** [/tmp/build/perf/util/srcline.o] Error 1
  make: *** [install] Error 2
  make: Leaving directory `/home/acme/git/linux/tools/perf'
  [acme@fedora12 linux]$

Help out GCC by initializing 'file' and 'line'.

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Link: http://lkml.kernel.org/n/tip-h8k7h49z3cndqgjdftkmm9f8@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/srcline.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/srcline.c b/tools/perf/util/srcline.c
index 37353194e0f6..d11aefbc4b8d 100644
--- a/tools/perf/util/srcline.c
+++ b/tools/perf/util/srcline.c
@@ -223,8 +223,8 @@ out:
 
 char *get_srcline(struct dso *dso, unsigned long addr)
 {
-	char *file;
-	unsigned line;
+	char *file = NULL;
+	unsigned line = 0;
 	char *srcline;
 	char *dso_name = dso->long_name;
 	size_t size;
-- 
cgit 


From 1df9297c8535a5bb2b776381e63d8334f87d4abe Mon Sep 17 00:00:00 2001
From: Felipe Pena <felipensp@gmail.com>
Date: Wed, 9 Oct 2013 23:00:38 -0300
Subject: perf tests: Fix memory leak in dso-data.c

Fix for a memory leak on test_file() function in dso-data.c.

Signed-off-by: Felipe Pena <felipensp@gmail.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1381370438-4209-1-git-send-email-felipensp@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/tests/dso-data.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/tests/dso-data.c b/tools/perf/tests/dso-data.c
index dffe0551acaa..9cc81a3eb9b4 100644
--- a/tools/perf/tests/dso-data.c
+++ b/tools/perf/tests/dso-data.c
@@ -35,6 +35,7 @@ static char *test_file(int size)
 	if (size != write(fd, buf, size))
 		templ = NULL;
 
+	free(buf);
 	close(fd);
 	return templ;
 }
-- 
cgit 


From 3e6a147deef93ddbb899cb394d8d44118289e76a Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Thu, 10 Oct 2013 22:24:00 +0200
Subject: perf tools: Separate lbfd check out of NO_DEMANGLE condition

We fail build with NO_DEMANGLE with missing -lbfd externals error.
The reason is that we now use bfd code in srcline object:
  perf tools: Implement addr2line directly using libbfd

So we need to check/add -lbfd always now.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/config/Makefile | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 29ad7d6c5311..96804247df08 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -470,6 +470,10 @@ else
   endif
 endif
 
+ifeq ($(feature-libbfd), 1)
+  EXTLIBS += -lbfd
+endif
+
 ifdef NO_DEMANGLE
   CFLAGS += -DNO_DEMANGLE
 else
@@ -477,9 +481,7 @@ else
     EXTLIBS += -liberty
     CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
   else
-    ifeq ($(feature-libbfd), 1)
-      EXTLIBS += -lbfd
-    else
+    ifneq ($(feature-libbfd), 1)
       $(feature_check,liberty)
       ifeq ($(feature-liberty), 1)
         EXTLIBS += -lbfd -liberty
@@ -502,6 +504,10 @@ else
   endif
 endif
 
+ifneq ($(filter -lbfd,$(EXTLIBS)),)
+  CFLAGS += -DHAVE_LIBBFD_SUPPORT
+endif
+
 ifndef NO_ON_EXIT
   ifeq ($(feature-on-exit), 1)
     CFLAGS += -DHAVE_ON_EXIT_SUPPORT
@@ -524,10 +530,6 @@ ifndef NO_LIBNUMA
   endif
 endif
 
-ifndef ($(filter -lbfd,$(EXTLIBS)),)
-  CFLAGS += -DHAVE_LIBBFD_SUPPORT
-endif
-
 # Among the variables below, these:
 #   perfexecdir
 #   template_dir
-- 
cgit 


From 52afdaf9f0c6a35e154ba42ac9510044e16d75ec Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Wed, 9 Oct 2013 15:01:11 +0300
Subject: perf symbols: Validate kcore module addresses

Before using kcore we need to check that modules are in memory at the
same addresses that they were when data was recorded.

This is done because, while we could remap symbols to different
addresses, the object code linkages would still be different which would
provide an erroneous view of the object code.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1381320078-16497-2-git-send-email-adrian.hunter@intel.com
[ Rename basename to base_name to avoid shadowing libgen's basename in fedora 12 ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/symbol.c | 196 ++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 175 insertions(+), 21 deletions(-)

diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 5fd95135e838..b2f60ddc864f 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -798,51 +798,201 @@ bool symbol__restricted_filename(const char *filename,
 	return restricted;
 }
 
-struct kcore_mapfn_data {
-	struct dso *dso;
-	enum map_type type;
-	struct list_head maps;
+struct module_info {
+	struct rb_node rb_node;
+	char *name;
+	u64 start;
 };
 
-static int kcore_mapfn(u64 start, u64 len, u64 pgoff, void *data)
+static void add_module(struct module_info *mi, struct rb_root *modules)
 {
-	struct kcore_mapfn_data *md = data;
-	struct map *map;
+	struct rb_node **p = &modules->rb_node;
+	struct rb_node *parent = NULL;
+	struct module_info *m;
 
-	map = map__new2(start, md->dso, md->type);
-	if (map == NULL)
+	while (*p != NULL) {
+		parent = *p;
+		m = rb_entry(parent, struct module_info, rb_node);
+		if (strcmp(mi->name, m->name) < 0)
+			p = &(*p)->rb_left;
+		else
+			p = &(*p)->rb_right;
+	}
+	rb_link_node(&mi->rb_node, parent, p);
+	rb_insert_color(&mi->rb_node, modules);
+}
+
+static void delete_modules(struct rb_root *modules)
+{
+	struct module_info *mi;
+	struct rb_node *next = rb_first(modules);
+
+	while (next) {
+		mi = rb_entry(next, struct module_info, rb_node);
+		next = rb_next(&mi->rb_node);
+		rb_erase(&mi->rb_node, modules);
+		free(mi->name);
+		free(mi);
+	}
+}
+
+static struct module_info *find_module(const char *name,
+				       struct rb_root *modules)
+{
+	struct rb_node *n = modules->rb_node;
+
+	while (n) {
+		struct module_info *m;
+		int cmp;
+
+		m = rb_entry(n, struct module_info, rb_node);
+		cmp = strcmp(name, m->name);
+		if (cmp < 0)
+			n = n->rb_left;
+		else if (cmp > 0)
+			n = n->rb_right;
+		else
+			return m;
+	}
+
+	return NULL;
+}
+
+static int __read_proc_modules(void *arg, const char *name, u64 start)
+{
+	struct rb_root *modules = arg;
+	struct module_info *mi;
+
+	mi = zalloc(sizeof(struct module_info));
+	if (!mi)
 		return -ENOMEM;
 
-	map->end = map->start + len;
-	map->pgoff = pgoff;
+	mi->name = strdup(name);
+	mi->start = start;
 
-	list_add(&map->node, &md->maps);
+	if (!mi->name) {
+		free(mi);
+		return -ENOMEM;
+	}
+
+	add_module(mi, modules);
+
+	return 0;
+}
+
+static int read_proc_modules(const char *filename, struct rb_root *modules)
+{
+	if (symbol__restricted_filename(filename, "/proc/modules"))
+		return -1;
+
+	if (modules__parse(filename, modules, __read_proc_modules)) {
+		delete_modules(modules);
+		return -1;
+	}
 
 	return 0;
 }
 
+static int do_validate_kcore_modules(const char *filename, struct map *map,
+				  struct map_groups *kmaps)
+{
+	struct rb_root modules = RB_ROOT;
+	struct map *old_map;
+	int err;
+
+	err = read_proc_modules(filename, &modules);
+	if (err)
+		return err;
+
+	old_map = map_groups__first(kmaps, map->type);
+	while (old_map) {
+		struct map *next = map_groups__next(old_map);
+		struct module_info *mi;
+
+		if (old_map == map || old_map->start == map->start) {
+			/* The kernel map */
+			old_map = next;
+			continue;
+		}
+
+		/* Module must be in memory at the same address */
+		mi = find_module(old_map->dso->short_name, &modules);
+		if (!mi || mi->start != old_map->start) {
+			err = -EINVAL;
+			goto out;
+		}
+
+		old_map = next;
+	}
+out:
+	delete_modules(&modules);
+	return err;
+}
+
 /*
- * If kallsyms is referenced by name then we look for kcore in the same
+ * If kallsyms is referenced by name then we look for filename in the same
  * directory.
  */
-static bool kcore_filename_from_kallsyms_filename(char *kcore_filename,
-						  const char *kallsyms_filename)
+static bool filename_from_kallsyms_filename(char *filename,
+					    const char *base_name,
+					    const char *kallsyms_filename)
 {
 	char *name;
 
-	strcpy(kcore_filename, kallsyms_filename);
-	name = strrchr(kcore_filename, '/');
+	strcpy(filename, kallsyms_filename);
+	name = strrchr(filename, '/');
 	if (!name)
 		return false;
 
-	if (!strcmp(name, "/kallsyms")) {
-		strcpy(name, "/kcore");
+	name += 1;
+
+	if (!strcmp(name, "kallsyms")) {
+		strcpy(name, base_name);
 		return true;
 	}
 
 	return false;
 }
 
+static int validate_kcore_modules(const char *kallsyms_filename,
+				  struct map *map)
+{
+	struct map_groups *kmaps = map__kmap(map)->kmaps;
+	char modules_filename[PATH_MAX];
+
+	if (!filename_from_kallsyms_filename(modules_filename, "modules",
+					     kallsyms_filename))
+		return -EINVAL;
+
+	if (do_validate_kcore_modules(modules_filename, map, kmaps))
+		return -EINVAL;
+
+	return 0;
+}
+
+struct kcore_mapfn_data {
+	struct dso *dso;
+	enum map_type type;
+	struct list_head maps;
+};
+
+static int kcore_mapfn(u64 start, u64 len, u64 pgoff, void *data)
+{
+	struct kcore_mapfn_data *md = data;
+	struct map *map;
+
+	map = map__new2(start, md->dso, md->type);
+	if (map == NULL)
+		return -ENOMEM;
+
+	map->end = map->start + len;
+	map->pgoff = pgoff;
+
+	list_add(&map->node, &md->maps);
+
+	return 0;
+}
+
 static int dso__load_kcore(struct dso *dso, struct map *map,
 			   const char *kallsyms_filename)
 {
@@ -859,8 +1009,12 @@ static int dso__load_kcore(struct dso *dso, struct map *map,
 	if (map != machine->vmlinux_maps[map->type])
 		return -EINVAL;
 
-	if (!kcore_filename_from_kallsyms_filename(kcore_filename,
-						   kallsyms_filename))
+	if (!filename_from_kallsyms_filename(kcore_filename, "kcore",
+					     kallsyms_filename))
+		return -EINVAL;
+
+	/* All modules must be present at their original addresses */
+	if (validate_kcore_modules(kallsyms_filename, map))
 		return -EINVAL;
 
 	md.dso = dso;
-- 
cgit 


From afba19d9dc8eba66ea26901708cf99354c637786 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Wed, 9 Oct 2013 15:01:12 +0300
Subject: perf symbols: Workaround objdump difficulties with kcore

The objdump tool fails to annotate module symbols when looking at kcore.

Workaround this by extracting object code from kcore and putting it in a
temporary file for objdump to use instead.

The temporary file is created to look like kcore but contains only the
function being disassembled.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1381320078-16497-3-git-send-email-adrian.hunter@intel.com
[ Renamed 'index' to 'idx' to avoid shadowing string.h's 'index' in Fedora 12,
  Replace local with variable length with malloc/free to fix build in Fedora 12 ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/annotate.c       |  21 ++++
 tools/perf/util/symbol-elf.c     | 229 +++++++++++++++++++++++++++++++++++++++
 tools/perf/util/symbol-minimal.c |   9 ++
 tools/perf/util/symbol.h         |  14 +++
 4 files changed, 273 insertions(+)

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index d73e8008aada..882bb864cee0 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -879,6 +879,8 @@ int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize)
 	FILE *file;
 	int err = 0;
 	char symfs_filename[PATH_MAX];
+	struct kcore_extract kce;
+	bool delete_extract = false;
 
 	if (filename) {
 		snprintf(symfs_filename, sizeof(symfs_filename), "%s%s",
@@ -940,6 +942,23 @@ fallback:
 	pr_debug("annotating [%p] %30s : [%p] %30s\n",
 		 dso, dso->long_name, sym, sym->name);
 
+	if (dso__is_kcore(dso)) {
+		kce.kcore_filename = symfs_filename;
+		kce.addr = map__rip_2objdump(map, sym->start);
+		kce.offs = sym->start;
+		kce.len = sym->end + 1 - sym->start;
+		if (!kcore_extract__create(&kce)) {
+			delete_extract = true;
+			strlcpy(symfs_filename, kce.extract_filename,
+				sizeof(symfs_filename));
+			if (free_filename) {
+				free(filename);
+				free_filename = false;
+			}
+			filename = symfs_filename;
+		}
+	}
+
 	snprintf(command, sizeof(command),
 		 "%s %s%s --start-address=0x%016" PRIx64
 		 " --stop-address=0x%016" PRIx64
@@ -972,6 +991,8 @@ fallback:
 
 	pclose(file);
 out_free_filename:
+	if (delete_extract)
+		kcore_extract__delete(&kce);
 	if (free_filename)
 		free(filename);
 	return err;
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index c37693052800..499c71d30225 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -1018,6 +1018,235 @@ int file__read_maps(int fd, bool exe, mapfn_t mapfn, void *data,
 	return err;
 }
 
+static int copy_bytes(int from, off_t from_offs, int to, off_t to_offs, u64 len)
+{
+	ssize_t r;
+	size_t n;
+	int err = -1;
+	char *buf = malloc(page_size);
+
+	if (buf == NULL)
+		return -1;
+
+	if (lseek(to, to_offs, SEEK_SET) != to_offs)
+		goto out;
+
+	if (lseek(from, from_offs, SEEK_SET) != from_offs)
+		goto out;
+
+	while (len) {
+		n = page_size;
+		if (len < n)
+			n = len;
+		/* Use read because mmap won't work on proc files */
+		r = read(from, buf, n);
+		if (r < 0)
+			goto out;
+		if (!r)
+			break;
+		n = r;
+		r = write(to, buf, n);
+		if (r < 0)
+			goto out;
+		if ((size_t)r != n)
+			goto out;
+		len -= n;
+	}
+
+	err = 0;
+out:
+	free(buf);
+	return err;
+}
+
+struct kcore {
+	int fd;
+	int elfclass;
+	Elf *elf;
+	GElf_Ehdr ehdr;
+};
+
+static int kcore__open(struct kcore *kcore, const char *filename)
+{
+	GElf_Ehdr *ehdr;
+
+	kcore->fd = open(filename, O_RDONLY);
+	if (kcore->fd == -1)
+		return -1;
+
+	kcore->elf = elf_begin(kcore->fd, ELF_C_READ, NULL);
+	if (!kcore->elf)
+		goto out_close;
+
+	kcore->elfclass = gelf_getclass(kcore->elf);
+	if (kcore->elfclass == ELFCLASSNONE)
+		goto out_end;
+
+	ehdr = gelf_getehdr(kcore->elf, &kcore->ehdr);
+	if (!ehdr)
+		goto out_end;
+
+	return 0;
+
+out_end:
+	elf_end(kcore->elf);
+out_close:
+	close(kcore->fd);
+	return -1;
+}
+
+static int kcore__init(struct kcore *kcore, char *filename, int elfclass,
+		       bool temp)
+{
+	GElf_Ehdr *ehdr;
+
+	kcore->elfclass = elfclass;
+
+	if (temp)
+		kcore->fd = mkstemp(filename);
+	else
+		kcore->fd = open(filename, O_WRONLY | O_CREAT | O_EXCL, 0400);
+	if (kcore->fd == -1)
+		return -1;
+
+	kcore->elf = elf_begin(kcore->fd, ELF_C_WRITE, NULL);
+	if (!kcore->elf)
+		goto out_close;
+
+	if (!gelf_newehdr(kcore->elf, elfclass))
+		goto out_end;
+
+	ehdr = gelf_getehdr(kcore->elf, &kcore->ehdr);
+	if (!ehdr)
+		goto out_end;
+
+	return 0;
+
+out_end:
+	elf_end(kcore->elf);
+out_close:
+	close(kcore->fd);
+	unlink(filename);
+	return -1;
+}
+
+static void kcore__close(struct kcore *kcore)
+{
+	elf_end(kcore->elf);
+	close(kcore->fd);
+}
+
+static int kcore__copy_hdr(struct kcore *from, struct kcore *to, size_t count)
+{
+	GElf_Ehdr *ehdr = &to->ehdr;
+	GElf_Ehdr *kehdr = &from->ehdr;
+
+	memcpy(ehdr->e_ident, kehdr->e_ident, EI_NIDENT);
+	ehdr->e_type      = kehdr->e_type;
+	ehdr->e_machine   = kehdr->e_machine;
+	ehdr->e_version   = kehdr->e_version;
+	ehdr->e_entry     = 0;
+	ehdr->e_shoff     = 0;
+	ehdr->e_flags     = kehdr->e_flags;
+	ehdr->e_phnum     = count;
+	ehdr->e_shentsize = 0;
+	ehdr->e_shnum     = 0;
+	ehdr->e_shstrndx  = 0;
+
+	if (from->elfclass == ELFCLASS32) {
+		ehdr->e_phoff     = sizeof(Elf32_Ehdr);
+		ehdr->e_ehsize    = sizeof(Elf32_Ehdr);
+		ehdr->e_phentsize = sizeof(Elf32_Phdr);
+	} else {
+		ehdr->e_phoff     = sizeof(Elf64_Ehdr);
+		ehdr->e_ehsize    = sizeof(Elf64_Ehdr);
+		ehdr->e_phentsize = sizeof(Elf64_Phdr);
+	}
+
+	if (!gelf_update_ehdr(to->elf, ehdr))
+		return -1;
+
+	if (!gelf_newphdr(to->elf, count))
+		return -1;
+
+	return 0;
+}
+
+static int kcore__add_phdr(struct kcore *kcore, int idx, off_t offset,
+			   u64 addr, u64 len)
+{
+	GElf_Phdr gphdr;
+	GElf_Phdr *phdr;
+
+	phdr = gelf_getphdr(kcore->elf, idx, &gphdr);
+	if (!phdr)
+		return -1;
+
+	phdr->p_type	= PT_LOAD;
+	phdr->p_flags	= PF_R | PF_W | PF_X;
+	phdr->p_offset	= offset;
+	phdr->p_vaddr	= addr;
+	phdr->p_paddr	= 0;
+	phdr->p_filesz	= len;
+	phdr->p_memsz	= len;
+	phdr->p_align	= page_size;
+
+	if (!gelf_update_phdr(kcore->elf, idx, phdr))
+		return -1;
+
+	return 0;
+}
+
+static off_t kcore__write(struct kcore *kcore)
+{
+	return elf_update(kcore->elf, ELF_C_WRITE);
+}
+
+int kcore_extract__create(struct kcore_extract *kce)
+{
+	struct kcore kcore;
+	struct kcore extract;
+	size_t count = 1;
+	int idx = 0, err = -1;
+	off_t offset = page_size, sz;
+
+	if (kcore__open(&kcore, kce->kcore_filename))
+		return -1;
+
+	strcpy(kce->extract_filename, PERF_KCORE_EXTRACT);
+	if (kcore__init(&extract, kce->extract_filename, kcore.elfclass, true))
+		goto out_kcore_close;
+
+	if (kcore__copy_hdr(&kcore, &extract, count))
+		goto out_extract_close;
+
+	if (kcore__add_phdr(&extract, idx, offset, kce->addr, kce->len))
+		goto out_extract_close;
+
+	sz = kcore__write(&extract);
+	if (sz < 0 || sz > offset)
+		goto out_extract_close;
+
+	if (copy_bytes(kcore.fd, kce->offs, extract.fd, offset, kce->len))
+		goto out_extract_close;
+
+	err = 0;
+
+out_extract_close:
+	kcore__close(&extract);
+	if (err)
+		unlink(kce->extract_filename);
+out_kcore_close:
+	kcore__close(&kcore);
+
+	return err;
+}
+
+void kcore_extract__delete(struct kcore_extract *kce)
+{
+	unlink(kce->extract_filename);
+}
+
 void symbol__elf_init(void)
 {
 	elf_version(EV_CURRENT);
diff --git a/tools/perf/util/symbol-minimal.c b/tools/perf/util/symbol-minimal.c
index 3a802c300fc5..928556d2508f 100644
--- a/tools/perf/util/symbol-minimal.c
+++ b/tools/perf/util/symbol-minimal.c
@@ -308,6 +308,15 @@ int file__read_maps(int fd __maybe_unused, bool exe __maybe_unused,
 	return -1;
 }
 
+int kcore_extract__create(struct kcore_extract *kce __maybe_unused)
+{
+	return -1;
+}
+
+void kcore_extract__delete(struct kcore_extract *kce __maybe_unused)
+{
+}
+
 void symbol__elf_init(void)
 {
 }
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 2d3eb43ab9f9..fb107e13e925 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -256,4 +256,18 @@ typedef int (*mapfn_t)(u64 start, u64 len, u64 pgoff, void *data);
 int file__read_maps(int fd, bool exe, mapfn_t mapfn, void *data,
 		    bool *is_64_bit);
 
+#define PERF_KCORE_EXTRACT "/tmp/perf-kcore-XXXXXX"
+
+struct kcore_extract {
+	char *kcore_filename;
+	u64 addr;
+	u64 offs;
+	u64 len;
+	char extract_filename[sizeof(PERF_KCORE_EXTRACT)];
+	int fd;
+};
+
+int kcore_extract__create(struct kcore_extract *kce);
+void kcore_extract__delete(struct kcore_extract *kce);
+
 #endif /* __PERF_SYMBOL */
-- 
cgit 


From 4e987712740a3634c19a6fedaf12577b26775dc5 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Mon, 14 Oct 2013 13:43:38 +0300
Subject: perf symbols: Add map_groups__find_ams()

Add a function to find a symbol using an ip that might be on a different
map.

Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1381747424-3557-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/map.c | 17 +++++++++++++++++
 tools/perf/util/map.h |  4 ++++
 2 files changed, 21 insertions(+)

diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 17ee458a0870..9dea404de3fa 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -371,6 +371,23 @@ struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg,
 	return NULL;
 }
 
+int map_groups__find_ams(struct addr_map_symbol *ams, symbol_filter_t filter)
+{
+	if (ams->addr < ams->map->start || ams->addr > ams->map->end) {
+		if (ams->map->groups == NULL)
+			return -1;
+		ams->map = map_groups__find(ams->map->groups, ams->map->type,
+					    ams->addr);
+		if (ams->map == NULL)
+			return -1;
+	}
+
+	ams->al_addr = ams->map->map_ip(ams->map, ams->addr);
+	ams->sym = map__find_symbol(ams->map, ams->al_addr, filter);
+
+	return ams->sym ? 0 : -1;
+}
+
 size_t __map_groups__fprintf_maps(struct map_groups *mg,
 				  enum map_type type, int verbose, FILE *fp)
 {
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index 4886ca280536..0359b4a808f0 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -167,6 +167,10 @@ struct symbol *map_groups__find_symbol_by_name(struct map_groups *mg,
 					       struct map **mapp,
 					       symbol_filter_t filter);
 
+struct addr_map_symbol;
+
+int map_groups__find_ams(struct addr_map_symbol *ams, symbol_filter_t filter);
+
 static inline
 struct symbol *map_groups__find_function_by_name(struct map_groups *mg,
 						 const char *name, struct map **mapp,
-- 
cgit 


From 3fb66335e13ef7426affe9efa48c08857202c1cb Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 9 Oct 2013 17:00:23 +0200
Subject: tools/perf/build: Fix non-existent build directory handling

Arnaldo reported that non-existent build directories were not
recognized  properly. The reason is readlink failure causing 'O'
to become empty.

Solve it by passing through the 'O' variable unmodified if
readlink fails.

Reported-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20131009150023.GA10167@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 5aa3d040bbf3..914704495166 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -34,7 +34,7 @@ endif
 # Only pass canonical directory names as the output directory:
 #
 ifneq ($(O),)
-  FULL_O := $(shell readlink -f $(O))
+  FULL_O := $(shell readlink -f $(O) || echo $(O))
 endif
 
 define print_msg
-- 
cgit 


From fcf92585014f0a0e390d2819de8278ae90da5842 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Thu, 10 Oct 2013 08:05:25 +0200
Subject: tools/perf/build: Pass through DEBUG parameter

Arnaldo reported that 'make DEBUG=1' does not work anymore.

The reason is that 'Makefile' only passes it through to
'Makefile.perf' via the environment, but 'Makefile.perf'
checks that it's a command line option:

    ifeq ("$(origin DEBUG)", "command line")
      PERF_DEBUG = $(DEBUG)
    endif

So pass it through properly, and also clean up DEBUG parameter
handling while at it and fix a couple of annoyances:

 - DEBUG=0 used to be interpreted as 'debugging on'. Turn it
   into 'debugging off' instead.

 - Same was the case for 'DEBUG=' - turn that into debug-off
   as well.

 - Pass in just a clean, sanitized 'DEBUG' value and get rid of
   the intermediate, unnecessary PERF_DEBUG variable.

Reported-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Makefile        | 15 ++++++++++++++-
 tools/perf/config/Makefile |  7 ++-----
 2 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 914704495166..4835618a5608 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -37,12 +37,25 @@ ifneq ($(O),)
   FULL_O := $(shell readlink -f $(O) || echo $(O))
 endif
 
+#
+# Only accept the 'DEBUG' variable from the command line:
+#
+ifeq ("$(origin DEBUG)", "command line")
+  ifeq ($(DEBUG),)
+    override DEBUG = 0
+  else
+    SET_DEBUG = "DEBUG=$(DEBUG)"
+  endif
+else
+  override DEBUG = 0
+endif
+
 define print_msg
   @printf '  BUILD:   Doing '\''make \033[33m-j'$(JOBS)'\033[m'\'' parallel build\n'
 endef
 
 define make
-  @$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) O=$(FULL_O) $@
+  @$(MAKE) -f Makefile.perf --no-print-directory -j$(JOBS) O=$(FULL_O) $(SET_DEBUG) $@
 endef
 
 #
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 96804247df08..9524c0c4e88f 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -66,10 +66,7 @@ ifneq ($(WERROR),0)
   CFLAGS += -Werror
 endif
 
-ifeq ("$(origin DEBUG)", "command line")
-  PERF_DEBUG = $(DEBUG)
-endif
-ifndef PERF_DEBUG
+ifeq ($(DEBUG),0)
   CFLAGS += -O6
 endif
 
@@ -210,7 +207,7 @@ ifeq ($(feature-volatile-register-var), 1)
   CFLAGS += -Wvolatile-register-var
 endif
 
-ifndef PERF_DEBUG
+ifeq ($(DEBUG),0)
   ifeq ($(feature-fortify-source), 1)
     CFLAGS += -D_FORTIFY_SOURCE=2
   endif
-- 
cgit 


From 0dc097421974e076b47d19806966adf5ebc7fd6b Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Thu, 10 Oct 2013 08:47:01 +0200
Subject: tools/perf/build: Fix DPACKAGE definitions for the libbfd et al
 testcases

Namhyung Kim reported these duplicate DPACKAGE definitions:

  test-libbfd:
       $(BUILD) -DPACKAGE='perf' -DPACKAGE=perf -lbfd -ldl

Fix all affected places and use Namhyung's suggestion that the
definition should look like a normal C string: -DPACKAGE='"perf"'.

Reported-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/config/feature-checks/Makefile | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 8ecac1908d5e..cf33596c7300 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -37,7 +37,7 @@ BUILD = $(CC) $(LDFLAGS) -o $(OUTPUT)$@ $@.c
 ###############################
 
 test-all:
-	$(BUILD) -Werror -fstack-protector -fstack-protector-all -Wvolatile-register-var -O2 -Werror -D_FORTIFY_SOURCE=2 -ldw -lelf -lnuma -lunwind -lunwind-x86_64 -lelf -laudit -I/usr/include/slang -lslang $(shell pkg-config --libs --cflags gtk+-2.0 2>/dev/null) $(FLAGS_PERL_EMBED) $(FLAGS_PYTHON_EMBED) -DPACKAGE='perf' -DPACKAGE=perf -lbfd -ldl
+	$(BUILD) -Werror -fstack-protector -fstack-protector-all -Wvolatile-register-var -O2 -Werror -D_FORTIFY_SOURCE=2 -ldw -lelf -lnuma -lunwind -lunwind-x86_64 -lelf -laudit -I/usr/include/slang -lslang $(shell pkg-config --libs --cflags gtk+-2.0 2>/dev/null) $(FLAGS_PERL_EMBED) $(FLAGS_PYTHON_EMBED) -DPACKAGE='"perf"' -lbfd -ldl
 
 test-hello:
 	$(BUILD)
@@ -123,13 +123,13 @@ test-libpython-version:
 	$(BUILD) $(FLAGS_PYTHON_EMBED)
 
 test-libbfd:
-	$(BUILD) -DPACKAGE='perf' -DPACKAGE=perf -lbfd -ldl
+	$(BUILD) -DPACKAGE='"perf"' -lbfd -ldl
 
 test-liberty:
-	$(CC) -o $(OUTPUT)$@ test-libbfd.c -DPACKAGE='perf' -DPACKAGE=perf -lbfd -ldl -liberty
+	$(CC) -o $(OUTPUT)$@ test-libbfd.c -DPACKAGE='"perf"' -lbfd -ldl -liberty
 
 test-liberty-z:
-	$(CC) -o $(OUTPUT)$@ test-libbfd.c -DPACKAGE='perf' -DPACKAGE=perf -lbfd -ldl -liberty -lz
+	$(CC) -o $(OUTPUT)$@ test-libbfd.c -DPACKAGE='"perf"' -lbfd -ldl -liberty -lz
 
 test-cplus-demangle:
 	$(BUILD) -liberty
-- 
cgit 


From 5f36978ca5b12b1e35535dedb8c999694fc0dfcf Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Thu, 10 Oct 2013 08:53:17 +0200
Subject: tools/perf/build: Simplify the libelf logic

Ulrich Drepper and Namhyung Kim reported that the libelf logic in
config/Makefile is duplicated in part.

Remove the duplication, and also remove the now unused FLAGS_LIBELF
variable.

Reported-by: Ulrich Drepper <drepper@gmail.com>
Reported-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/config/Makefile | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 9524c0c4e88f..d2079220ff87 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -280,7 +280,6 @@ endif # NO_LIBELF
 
 ifndef NO_LIBELF
   CFLAGS += -DHAVE_LIBELF_SUPPORT
-  FLAGS_LIBELF=$(CFLAGS) $(LDFLAGS) $(EXTLIBS)
 
   ifeq ($(feature-libelf-mmap), 1)
     CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
@@ -305,13 +304,6 @@ ifndef NO_LIBELF
   endif # NO_DWARF
 endif # NO_LIBELF
 
-ifndef NO_LIBELF
-  CFLAGS += -DHAVE_LIBELF_SUPPORT
-  ifeq ($(feature-libelf-mmap), 1)
-    CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
-  endif
-endif # NO_LIBELF
-
 # There's only x86 (both 32 and 64) support for CFI unwind so far
 ifneq ($(ARCH),x86)
   NO_LIBUNWIND := 1
-- 
cgit 


From 01287e2cb7ad17b3d77751888d458a6b6a2bba15 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Thu, 10 Oct 2013 08:58:57 +0200
Subject: tools/perf/build: Remove the volatile-register-var feature check

Namhyung Kim noticed that the volatile-register-var feature check
is superfluous:

 > The gcc manpage says this warning is enabled by -Wall, and we add -Wall
 > to CFLAGS before doing feature checks.  So all gcc versions that support
 > -Wvolatile-register-var enables it by default without this check and
 > older gcc versions will always fail the feature check.

Remove it - this will further speed up feature checks.

Reported-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/config/Makefile                | 7 +------
 tools/perf/config/feature-checks/Makefile | 8 ++------
 2 files changed, 3 insertions(+), 12 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index d2079220ff87..c516d6ba6716 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -132,8 +132,7 @@ CORE_FEATURE_TESTS =			\
 	libunwind			\
 	on-exit				\
 	stackprotector			\
-	stackprotector-all		\
-	volatile-register-var
+	stackprotector-all
 
 #
 # So here we detect whether test-all was rebuilt, to be able
@@ -203,10 +202,6 @@ ifeq ($(feature-stackprotector), 1)
   CFLAGS += -Wstack-protector
 endif
 
-ifeq ($(feature-volatile-register-var), 1)
-  CFLAGS += -Wvolatile-register-var
-endif
-
 ifeq ($(DEBUG),0)
   ifeq ($(feature-fortify-source), 1)
     CFLAGS += -D_FORTIFY_SOURCE=2
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index cf33596c7300..2eb83467cca2 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -25,8 +25,7 @@ FILES=					\
 	test-libunwind			\
 	test-on-exit			\
 	test-stackprotector-all		\
-	test-stackprotector		\
-	test-volatile-register-var
+	test-stackprotector
 
 CC := $(CC) -MD
 
@@ -37,7 +36,7 @@ BUILD = $(CC) $(LDFLAGS) -o $(OUTPUT)$@ $@.c
 ###############################
 
 test-all:
-	$(BUILD) -Werror -fstack-protector -fstack-protector-all -Wvolatile-register-var -O2 -Werror -D_FORTIFY_SOURCE=2 -ldw -lelf -lnuma -lunwind -lunwind-x86_64 -lelf -laudit -I/usr/include/slang -lslang $(shell pkg-config --libs --cflags gtk+-2.0 2>/dev/null) $(FLAGS_PERL_EMBED) $(FLAGS_PYTHON_EMBED) -DPACKAGE='"perf"' -lbfd -ldl
+	$(BUILD) -Werror -fstack-protector -fstack-protector-all -O2 -Werror -D_FORTIFY_SOURCE=2 -ldw -lelf -lnuma -lunwind -lunwind-x86_64 -lelf -laudit -I/usr/include/slang -lslang $(shell pkg-config --libs --cflags gtk+-2.0 2>/dev/null) $(FLAGS_PERL_EMBED) $(FLAGS_PYTHON_EMBED) -DPACKAGE='"perf"' -lbfd -ldl
 
 test-hello:
 	$(BUILD)
@@ -48,9 +47,6 @@ test-stackprotector-all:
 test-stackprotector:
 	$(BUILD) -Werror -fstack-protector
 
-test-volatile-register-var:
-	$(BUILD) -Werror -Wvolatile-register-var
-
 test-fortify-source:
 	$(BUILD) -O2 -Werror -D_FORTIFY_SOURCE=2
 
-- 
cgit 


From 046fa7ae20d2390c65be8eb406efecff15e8b71d Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Thu, 10 Oct 2013 09:06:21 +0200
Subject: tools/perf/build: Improve the 'stackprotector' feature test

Namhyung Kim noticed that the stackprotector testcase was incomplete:

  > The flag being checked should be -"W"stack-protector instead of
  > -"f"stack-protector.  And the gcc manpage says that -Wstack-protector is
  > only active when -fstack-protector is active.  So the end result should
  > look like
  >
  >         $(BUILD) -Werror -fstack-protector -Wstack-protector

Add -Wstack-protector.

Reported-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/config/feature-checks/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 2eb83467cca2..c70d23ecb64e 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -45,7 +45,7 @@ test-stackprotector-all:
 	$(BUILD) -Werror -fstack-protector-all
 
 test-stackprotector:
-	$(BUILD) -Werror -fstack-protector
+	$(BUILD) -Werror -fstack-protector -Wstack-protector
 
 test-fortify-source:
 	$(BUILD) -O2 -Werror -D_FORTIFY_SOURCE=2
-- 
cgit 


From 231486a5223b1023bcabf53d16d63a83b9f27bf7 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Thu, 10 Oct 2013 09:10:59 +0200
Subject: tools/perf/build: Simplify the autodep inclusion rule

Namhyung Kim noticed that the autodep .d file inclusion rule was
unnecessarily complicated:

  > > +-include *.d */*.d
  >
  > Hmm.. this */*.d part is really needed?

Only include *.d files.

Reported-by: Namhyung Kim <namhyung@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/config/feature-checks/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index c70d23ecb64e..452b67cc4d7b 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -136,7 +136,7 @@ test-on-exit:
 test-backtrace:
 	$(BUILD)
 
--include *.d */*.d
+-include *.d
 
 ###############################
 
-- 
cgit 


From 6e427ab02c8886ca6c9ecdbb318e68fe8f605469 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 14 Oct 2013 13:43:40 +0300
Subject: perf annotate: Find kcore symbols on other maps

Use the new map_groups__find_ams() method to find kcore symbols on other
maps.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1381747424-3557-4-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/annotate.c | 22 +++++++++-------------
 1 file changed, 9 insertions(+), 13 deletions(-)

diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index 882bb864cee0..cf6242c92ee2 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -825,20 +825,16 @@ static int symbol__parse_objdump_line(struct symbol *sym, struct map *map,
 		dl->ops.target.offset = dl->ops.target.addr -
 					map__rip_2objdump(map, sym->start);
 
-	/*
-	 * kcore has no symbols, so add the call target name if it is on the
-	 * same map.
-	 */
+	/* kcore has no symbols, so add the call target name */
 	if (dl->ins && ins__is_call(dl->ins) && !dl->ops.target.name) {
-		struct symbol *s;
-		u64 ip = dl->ops.target.addr;
-
-		if (ip >= map->start && ip <= map->end) {
-			ip = map->map_ip(map, ip);
-			s = map__find_symbol(map, ip, NULL);
-			if (s && s->start == ip)
-				dl->ops.target.name = strdup(s->name);
-		}
+		struct addr_map_symbol target = {
+			.map = map,
+			.addr = dl->ops.target.addr,
+		};
+
+		if (!map_groups__find_ams(&target, NULL) &&
+		    target.sym->start == target.al_addr)
+			dl->ops.target.name = strdup(target.sym->name);
 	}
 
 	disasm__add(&notes->src->source, dl);
-- 
cgit 


From 9a17d7268d71674f0bbff6821f7d8e6dc0ece19a Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 14 Oct 2013 13:43:41 +0300
Subject: perf tools: Add copyfile_mode()

Add a function to copy a file specifying the permissions to use for the
created file.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1381747424-3557-5-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/util.c | 18 +++++++++++++-----
 tools/perf/util/util.h |  1 +
 2 files changed, 14 insertions(+), 5 deletions(-)

diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index ab71d6216803..8dc8cf39f4ed 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -55,17 +55,20 @@ int mkdir_p(char *path, mode_t mode)
 	return (stat(path, &st) && mkdir(path, mode)) ? -1 : 0;
 }
 
-static int slow_copyfile(const char *from, const char *to)
+static int slow_copyfile(const char *from, const char *to, mode_t mode)
 {
-	int err = 0;
+	int err = -1;
 	char *line = NULL;
 	size_t n;
 	FILE *from_fp = fopen(from, "r"), *to_fp;
+	mode_t old_umask;
 
 	if (from_fp == NULL)
 		goto out;
 
+	old_umask = umask(mode ^ 0777);
 	to_fp = fopen(to, "w");
+	umask(old_umask);
 	if (to_fp == NULL)
 		goto out_fclose_from;
 
@@ -82,7 +85,7 @@ out:
 	return err;
 }
 
-int copyfile(const char *from, const char *to)
+int copyfile_mode(const char *from, const char *to, mode_t mode)
 {
 	int fromfd, tofd;
 	struct stat st;
@@ -93,13 +96,13 @@ int copyfile(const char *from, const char *to)
 		goto out;
 
 	if (st.st_size == 0) /* /proc? do it slowly... */
-		return slow_copyfile(from, to);
+		return slow_copyfile(from, to, mode);
 
 	fromfd = open(from, O_RDONLY);
 	if (fromfd < 0)
 		goto out;
 
-	tofd = creat(to, 0755);
+	tofd = creat(to, mode);
 	if (tofd < 0)
 		goto out_close_from;
 
@@ -121,6 +124,11 @@ out:
 	return err;
 }
 
+int copyfile(const char *from, const char *to)
+{
+	return copyfile_mode(from, to, 0755);
+}
+
 unsigned long convert_unit(unsigned long value, char *unit)
 {
 	*unit = ' ';
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 1f06ba44cd53..42dfba70fbfc 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -243,6 +243,7 @@ static inline int sane_case(int x, int high)
 
 int mkdir_p(char *path, mode_t mode);
 int copyfile(const char *from, const char *to);
+int copyfile_mode(const char *from, const char *to, mode_t mode);
 
 s64 perf_atoll(const char *str);
 char **argv_split(const char *str, int *argcp);
-- 
cgit 


From 0544d4225c52ca31ab2a55b22ddce1392d8f45a4 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 14 Oct 2013 13:43:43 +0300
Subject: perf symbols: Add ability to find kcore in build-id cache

When no vmlinux is found, tools will use kallsyms and, if possible,
kcore.  Add the ability to find kcore in the build-id cache.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1381747424-3557-7-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/symbol.c | 147 +++++++++++++++++++++++++++++++++--------------
 1 file changed, 103 insertions(+), 44 deletions(-)

diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index b2f60ddc864f..76a9e933a7a5 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1401,6 +1401,105 @@ out:
 	return err;
 }
 
+static int find_matching_kcore(struct map *map, char *dir, size_t dir_sz)
+{
+	char kallsyms_filename[PATH_MAX];
+	struct dirent *dent;
+	int ret = -1;
+	DIR *d;
+
+	d = opendir(dir);
+	if (!d)
+		return -1;
+
+	while (1) {
+		dent = readdir(d);
+		if (!dent)
+			break;
+		if (dent->d_type != DT_DIR)
+			continue;
+		scnprintf(kallsyms_filename, sizeof(kallsyms_filename),
+			  "%s/%s/kallsyms", dir, dent->d_name);
+		if (!validate_kcore_modules(kallsyms_filename, map)) {
+			strlcpy(dir, kallsyms_filename, dir_sz);
+			ret = 0;
+			break;
+		}
+	}
+
+	closedir(d);
+
+	return ret;
+}
+
+static char *dso__find_kallsyms(struct dso *dso, struct map *map)
+{
+	u8 host_build_id[BUILD_ID_SIZE];
+	char sbuild_id[BUILD_ID_SIZE * 2 + 1];
+	bool is_host = false;
+	char path[PATH_MAX];
+
+	if (!dso->has_build_id) {
+		/*
+		 * Last resort, if we don't have a build-id and couldn't find
+		 * any vmlinux file, try the running kernel kallsyms table.
+		 */
+		goto proc_kallsyms;
+	}
+
+	if (sysfs__read_build_id("/sys/kernel/notes", host_build_id,
+				 sizeof(host_build_id)) == 0)
+		is_host = dso__build_id_equal(dso, host_build_id);
+
+	build_id__sprintf(dso->build_id, sizeof(dso->build_id), sbuild_id);
+
+	/* Use /proc/kallsyms if possible */
+	if (is_host) {
+		DIR *d;
+		int fd;
+
+		/* If no cached kcore go with /proc/kallsyms */
+		scnprintf(path, sizeof(path), "%s/[kernel.kcore]/%s",
+			  buildid_dir, sbuild_id);
+		d = opendir(path);
+		if (!d)
+			goto proc_kallsyms;
+		closedir(d);
+
+		/*
+		 * Do not check the build-id cache, until we know we cannot use
+		 * /proc/kcore.
+		 */
+		fd = open("/proc/kcore", O_RDONLY);
+		if (fd != -1) {
+			close(fd);
+			/* If module maps match go with /proc/kallsyms */
+			if (!validate_kcore_modules("/proc/kallsyms", map))
+				goto proc_kallsyms;
+		}
+
+		/* Find kallsyms in build-id cache with kcore */
+		if (!find_matching_kcore(map, path, sizeof(path)))
+			return strdup(path);
+
+		goto proc_kallsyms;
+	}
+
+	scnprintf(path, sizeof(path), "%s/[kernel.kallsyms]/%s",
+		  buildid_dir, sbuild_id);
+
+	if (access(path, F_OK)) {
+		pr_err("No kallsyms or vmlinux with build-id %s was found\n",
+		       sbuild_id);
+		return NULL;
+	}
+
+	return strdup(path);
+
+proc_kallsyms:
+	return strdup("/proc/kallsyms");
+}
+
 static int dso__load_kernel_sym(struct dso *dso, struct map *map,
 				symbol_filter_t filter)
 {
@@ -1449,51 +1548,11 @@ static int dso__load_kernel_sym(struct dso *dso, struct map *map,
 	if (symbol_conf.symfs[0] != 0)
 		return -1;
 
-	/*
-	 * Say the kernel DSO was created when processing the build-id header table,
-	 * we have a build-id, so check if it is the same as the running kernel,
-	 * using it if it is.
-	 */
-	if (dso->has_build_id) {
-		u8 kallsyms_build_id[BUILD_ID_SIZE];
-		char sbuild_id[BUILD_ID_SIZE * 2 + 1];
-
-		if (sysfs__read_build_id("/sys/kernel/notes", kallsyms_build_id,
-					 sizeof(kallsyms_build_id)) == 0) {
-			if (dso__build_id_equal(dso, kallsyms_build_id)) {
-				kallsyms_filename = "/proc/kallsyms";
-				goto do_kallsyms;
-			}
-		}
-		/*
-		 * Now look if we have it on the build-id cache in
-		 * $HOME/.debug/[kernel.kallsyms].
-		 */
-		build_id__sprintf(dso->build_id, sizeof(dso->build_id),
-				  sbuild_id);
-
-		if (asprintf(&kallsyms_allocated_filename,
-			     "%s/.debug/[kernel.kallsyms]/%s",
-			     getenv("HOME"), sbuild_id) == -1) {
-			pr_err("Not enough memory for kallsyms file lookup\n");
-			return -1;
-		}
-
-		kallsyms_filename = kallsyms_allocated_filename;
+	kallsyms_allocated_filename = dso__find_kallsyms(dso, map);
+	if (!kallsyms_allocated_filename)
+		return -1;
 
-		if (access(kallsyms_filename, F_OK)) {
-			pr_err("No kallsyms or vmlinux with build-id %s "
-			       "was found\n", sbuild_id);
-			free(kallsyms_allocated_filename);
-			return -1;
-		}
-	} else {
-		/*
-		 * Last resort, if we don't have a build-id and couldn't find
-		 * any vmlinux file, try the running kernel kallsyms table.
-		 */
-		kallsyms_filename = "/proc/kallsyms";
-	}
+	kallsyms_filename = kallsyms_allocated_filename;
 
 do_kallsyms:
 	err = dso__load_kallsyms(dso, kallsyms_filename, map, filter);
-- 
cgit 


From 1179e11bbb655162e83b33e17a97c45d3fe292da Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 14 Oct 2013 13:43:39 +0300
Subject: perf annotate: Fix annotate_browser__callq()

When following a call, annotate_browser__callq() uses the current
symbol's map to look up the target ip.  That will not work if the target
ip is on a map with a different mapping (i.e.  start - pgoff is
different).

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1381747424-3557-3-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/ui/browsers/annotate.c | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 08545ae46992..57d3a8659fc0 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -442,35 +442,34 @@ static bool annotate_browser__callq(struct annotate_browser *browser,
 {
 	struct map_symbol *ms = browser->b.priv;
 	struct disasm_line *dl = browser->selection;
-	struct symbol *sym = ms->sym;
 	struct annotation *notes;
-	struct symbol *target;
-	u64 ip;
+	struct addr_map_symbol target = {
+		.map = ms->map,
+		.addr = dl->ops.target.addr,
+	};
 	char title[SYM_TITLE_MAX_SIZE];
 
 	if (!ins__is_call(dl->ins))
 		return false;
 
-	ip = ms->map->map_ip(ms->map, dl->ops.target.addr);
-	target = map__find_symbol(ms->map, ip, NULL);
-	if (target == NULL) {
+	if (map_groups__find_ams(&target, NULL)) {
 		ui_helpline__puts("The called function was not found.");
 		return true;
 	}
 
-	notes = symbol__annotation(target);
+	notes = symbol__annotation(target.sym);
 	pthread_mutex_lock(&notes->lock);
 
-	if (notes->src == NULL && symbol__alloc_hist(target) < 0) {
+	if (notes->src == NULL && symbol__alloc_hist(target.sym) < 0) {
 		pthread_mutex_unlock(&notes->lock);
 		ui__warning("Not enough memory for annotating '%s' symbol!\n",
-			    target->name);
+			    target.sym->name);
 		return true;
 	}
 
 	pthread_mutex_unlock(&notes->lock);
-	symbol__tui_annotate(target, ms->map, evsel, hbt);
-	sym_title(sym, ms->map, title, sizeof(title));
+	symbol__tui_annotate(target.sym, target.map, evsel, hbt);
+	sym_title(ms->sym, ms->map, title, sizeof(title));
 	ui_browser__show_title(&browser->b, title);
 	return true;
 }
-- 
cgit 


From 3f79410c7c9c8ef33ccff60c61e1f1166f5ed64a Mon Sep 17 00:00:00 2001
From: Maxime Jayat <maxime@artisandeveloppeur.fr>
Date: Sat, 12 Oct 2013 01:29:46 +0200
Subject: treewide: Fix common typo in "identify"

Correct common misspelling of "identify" as "indentify" throughout
the kernel

Signed-off-by: Maxime Jayat <maxime@artisandeveloppeur.fr>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 arch/mips/include/asm/octeon/cvmx-pip.h   |  4 ++--
 arch/x86/kernel/cpu/intel_cacheinfo.c     |  2 +-
 arch/x86/kernel/cpu/scattered.c           |  2 +-
 drivers/media/rc/keymaps/rc-dib0700-nec.c |  2 +-
 drivers/media/rc/keymaps/rc-dib0700-rc5.c |  2 +-
 drivers/net/irda/ali-ircc.c               |  2 +-
 drivers/net/irda/nsc-ircc.c               |  2 +-
 drivers/s390/scsi/zfcp_dbf.c              |  6 +++---
 drivers/scsi/bnx2i/bnx2i_hwi.c            | 16 ++++++++--------
 drivers/scsi/bnx2i/bnx2i_iscsi.c          | 14 +++++++-------
 drivers/scsi/ncr53c8xx.c                  |  2 +-
 drivers/scsi/sym53c8xx_2/sym_glue.h       |  2 +-
 drivers/staging/iio/adc/ad7606.h          |  2 +-
 include/linux/amba/serial.h               |  2 +-
 include/linux/mfd/si476x-core.h           |  2 +-
 include/linux/netdevice.h                 |  2 +-
 include/net/bluetooth/l2cap.h             |  2 +-
 net/can/af_can.c                          |  2 +-
 net/netfilter/xt_set.c                    |  4 ++--
 19 files changed, 36 insertions(+), 36 deletions(-)

diff --git a/arch/mips/include/asm/octeon/cvmx-pip.h b/arch/mips/include/asm/octeon/cvmx-pip.h
index a76fe5a57a9f..df69bfd2b006 100644
--- a/arch/mips/include/asm/octeon/cvmx-pip.h
+++ b/arch/mips/include/asm/octeon/cvmx-pip.h
@@ -192,13 +192,13 @@ typedef struct {
 	/* Number of packets processed by PIP */
 	uint32_t packets;
 	/*
-	 * Number of indentified L2 multicast packets.	Does not
+	 * Number of identified L2 multicast packets.	Does not
 	 * include broadcast packets.  Only includes packets whose
 	 * parse mode is SKIP_TO_L2
 	 */
 	uint32_t multicast_packets;
 	/*
-	 * Number of indentified L2 broadcast packets.	Does not
+	 * Number of identified L2 broadcast packets.	Does not
 	 * include multicast packets.  Only includes packets whose
 	 * parse mode is SKIP_TO_L2
 	 */
diff --git a/arch/x86/kernel/cpu/intel_cacheinfo.c b/arch/x86/kernel/cpu/intel_cacheinfo.c
index 1414c90feaba..0641113e2965 100644
--- a/arch/x86/kernel/cpu/intel_cacheinfo.c
+++ b/arch/x86/kernel/cpu/intel_cacheinfo.c
@@ -1,5 +1,5 @@
 /*
- *	Routines to indentify caches on Intel CPU.
+ *	Routines to identify caches on Intel CPU.
  *
  *	Changes:
  *	Venkatesh Pallipadi	: Adding cache identification through cpuid(4)
diff --git a/arch/x86/kernel/cpu/scattered.c b/arch/x86/kernel/cpu/scattered.c
index f2cc63e9cf08..b6f794aa1693 100644
--- a/arch/x86/kernel/cpu/scattered.c
+++ b/arch/x86/kernel/cpu/scattered.c
@@ -1,5 +1,5 @@
 /*
- *	Routines to indentify additional cpu features that are scattered in
+ *	Routines to identify additional cpu features that are scattered in
  *	cpuid space.
  */
 #include <linux/cpu.h>
diff --git a/drivers/media/rc/keymaps/rc-dib0700-nec.c b/drivers/media/rc/keymaps/rc-dib0700-nec.c
index 4d13a7f2e5c3..492a05ade7e1 100644
--- a/drivers/media/rc/keymaps/rc-dib0700-nec.c
+++ b/drivers/media/rc/keymaps/rc-dib0700-nec.c
@@ -5,7 +5,7 @@
  * TODO: This table is a real mess, as it merges RC codes from several
  * devices into a big table. It also has both RC-5 and NEC codes inside.
  * It should be broken into small tables, and the protocols should properly
- * be indentificated.
+ * be identificated.
  *
  * The table were imported from dib0700_devices.c.
  *
diff --git a/drivers/media/rc/keymaps/rc-dib0700-rc5.c b/drivers/media/rc/keymaps/rc-dib0700-rc5.c
index ba81d9697cfc..454ea596a7ee 100644
--- a/drivers/media/rc/keymaps/rc-dib0700-rc5.c
+++ b/drivers/media/rc/keymaps/rc-dib0700-rc5.c
@@ -5,7 +5,7 @@
  * TODO: This table is a real mess, as it merges RC codes from several
  * devices into a big table. It also has both RC-5 and NEC codes inside.
  * It should be broken into small tables, and the protocols should properly
- * be indentificated.
+ * be identificated.
  *
  * The table were imported from dib0700_devices.c.
  *
diff --git a/drivers/net/irda/ali-ircc.c b/drivers/net/irda/ali-ircc.c
index 7bbd318bc93e..befa45f809c3 100644
--- a/drivers/net/irda/ali-ircc.c
+++ b/drivers/net/irda/ali-ircc.c
@@ -627,7 +627,7 @@ static int ali_ircc_setup(chipio_t *info)
 /*
  * Function ali_ircc_read_dongle_id (int index, info)
  *
- * Try to read dongle indentification. This procedure needs to be executed
+ * Try to read dongle identification. This procedure needs to be executed
  * once after power-on/reset. It also needs to be used whenever you suspect
  * that the user may have plugged/unplugged the IrDA Dongle.
  */
diff --git a/drivers/net/irda/nsc-ircc.c b/drivers/net/irda/nsc-ircc.c
index ceeb53737f86..66bc03bdb138 100644
--- a/drivers/net/irda/nsc-ircc.c
+++ b/drivers/net/irda/nsc-ircc.c
@@ -1035,7 +1035,7 @@ static int nsc_ircc_setup(chipio_t *info)
 /*
  * Function nsc_ircc_read_dongle_id (void)
  *
- * Try to read dongle indentification. This procedure needs to be executed
+ * Try to read dongle identification. This procedure needs to be executed
  * once after power-on/reset. It also needs to be used whenever you suspect
  * that the user may have plugged/unplugged the IrDA Dongle.
  */
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index 132a905b6bdb..0ca64484cfa3 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -344,7 +344,7 @@ void zfcp_dbf_san(char *tag, struct zfcp_dbf *dbf, void *data, u8 id, u16 len,
 
 /**
  * zfcp_dbf_san_req - trace event for issued SAN request
- * @tag: indentifier for event
+ * @tag: identifier for event
  * @fsf_req: request containing issued CT data
  * d_id: destination ID
  */
@@ -361,7 +361,7 @@ void zfcp_dbf_san_req(char *tag, struct zfcp_fsf_req *fsf, u32 d_id)
 
 /**
  * zfcp_dbf_san_res - trace event for received SAN request
- * @tag: indentifier for event
+ * @tag: identifier for event
  * @fsf_req: request containing issued CT data
  */
 void zfcp_dbf_san_res(char *tag, struct zfcp_fsf_req *fsf)
@@ -377,7 +377,7 @@ void zfcp_dbf_san_res(char *tag, struct zfcp_fsf_req *fsf)
 
 /**
  * zfcp_dbf_san_in_els - trace event for incoming ELS
- * @tag: indentifier for event
+ * @tag: identifier for event
  * @fsf_req: request containing issued CT data
  */
 void zfcp_dbf_san_in_els(char *tag, struct zfcp_fsf_req *fsf)
diff --git a/drivers/scsi/bnx2i/bnx2i_hwi.c b/drivers/scsi/bnx2i/bnx2i_hwi.c
index af3e675d4d48..886e2f9eb0ea 100644
--- a/drivers/scsi/bnx2i/bnx2i_hwi.c
+++ b/drivers/scsi/bnx2i/bnx2i_hwi.c
@@ -126,7 +126,7 @@ static void bnx2i_iscsi_license_error(struct bnx2i_hba *hba, u32 error_code)
 
 /**
  * bnx2i_arm_cq_event_coalescing - arms CQ to enable EQ notification
- * @ep:		endpoint (transport indentifier) structure
+ * @ep:		endpoint (transport identifier) structure
  * @action:	action, ARM or DISARM. For now only ARM_CQE is used
  *
  * Arm'ing CQ will enable chip to generate global EQ events inorder to interrupt
@@ -756,7 +756,7 @@ void bnx2i_send_cmd_cleanup_req(struct bnx2i_hba *hba, struct bnx2i_cmd *cmd)
 /**
  * bnx2i_send_conn_destroy - initiates iscsi connection teardown process
  * @hba:	adapter structure pointer
- * @ep:		endpoint (transport indentifier) structure
+ * @ep:		endpoint (transport identifier) structure
  *
  * this routine prepares and posts CONN_OFLD_REQ1/2 KWQE to initiate
  * 	iscsi connection context clean-up process
@@ -791,7 +791,7 @@ int bnx2i_send_conn_destroy(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep)
 /**
  * bnx2i_570x_send_conn_ofld_req - initiates iscsi conn context setup process
  * @hba: 		adapter structure pointer
- * @ep: 		endpoint (transport indentifier) structure
+ * @ep: 		endpoint (transport identifier) structure
  *
  * 5706/5708/5709 specific - prepares and posts CONN_OFLD_REQ1/2 KWQE
  */
@@ -851,7 +851,7 @@ static int bnx2i_570x_send_conn_ofld_req(struct bnx2i_hba *hba,
 /**
  * bnx2i_5771x_send_conn_ofld_req - initiates iscsi connection context creation
  * @hba: 		adapter structure pointer
- * @ep: 		endpoint (transport indentifier) structure
+ * @ep: 		endpoint (transport identifier) structure
  *
  * 57710 specific - prepares and posts CONN_OFLD_REQ1/2 KWQE
  */
@@ -920,7 +920,7 @@ static int bnx2i_5771x_send_conn_ofld_req(struct bnx2i_hba *hba,
  * bnx2i_send_conn_ofld_req - initiates iscsi connection context setup process
  *
  * @hba: 		adapter structure pointer
- * @ep: 		endpoint (transport indentifier) structure
+ * @ep: 		endpoint (transport identifier) structure
  *
  * this routine prepares and posts CONN_OFLD_REQ1/2 KWQE
  */
@@ -939,7 +939,7 @@ int bnx2i_send_conn_ofld_req(struct bnx2i_hba *hba, struct bnx2i_endpoint *ep)
 
 /**
  * setup_qp_page_tables - iscsi QP page table setup function
- * @ep:		endpoint (transport indentifier) structure
+ * @ep:		endpoint (transport identifier) structure
  *
  * Sets up page tables for SQ/RQ/CQ, 1G/sec (5706/5708/5709) devices requires
  * 	64-bit address in big endian format. Whereas 10G/sec (57710) requires
@@ -1046,7 +1046,7 @@ static void setup_qp_page_tables(struct bnx2i_endpoint *ep)
 /**
  * bnx2i_alloc_qp_resc - allocates required resources for QP.
  * @hba:	adapter structure pointer
- * @ep:		endpoint (transport indentifier) structure
+ * @ep:		endpoint (transport identifier) structure
  *
  * Allocate QP (transport layer for iSCSI connection) resources, DMA'able
  *	memory for SQ/RQ/CQ and page tables. EP structure elements such
@@ -1191,7 +1191,7 @@ mem_alloc_err:
 /**
  * bnx2i_free_qp_resc - free memory resources held by QP
  * @hba:	adapter structure pointer
- * @ep:	endpoint (transport indentifier) structure
+ * @ep:	endpoint (transport identifier) structure
  *
  * Free QP resources - SQ/RQ/CQ memory and page tables.
  */
diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c
index fabeb88602ac..854dad7d5b03 100644
--- a/drivers/scsi/bnx2i/bnx2i_iscsi.c
+++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c
@@ -596,7 +596,7 @@ void bnx2i_drop_session(struct iscsi_cls_session *cls_session)
 /**
  * bnx2i_ep_destroy_list_add - add an entry to EP destroy list
  * @hba:	pointer to adapter instance
- * @ep:		pointer to endpoint (transport indentifier) structure
+ * @ep:		pointer to endpoint (transport identifier) structure
  *
  * EP destroy queue manager
  */
@@ -613,7 +613,7 @@ static int bnx2i_ep_destroy_list_add(struct bnx2i_hba *hba,
  * bnx2i_ep_destroy_list_del - add an entry to EP destroy list
  *
  * @hba: 		pointer to adapter instance
- * @ep: 		pointer to endpoint (transport indentifier) structure
+ * @ep: 		pointer to endpoint (transport identifier) structure
  *
  * EP destroy queue manager
  */
@@ -630,7 +630,7 @@ static int bnx2i_ep_destroy_list_del(struct bnx2i_hba *hba,
 /**
  * bnx2i_ep_ofld_list_add - add an entry to ep offload pending list
  * @hba:	pointer to adapter instance
- * @ep:		pointer to endpoint (transport indentifier) structure
+ * @ep:		pointer to endpoint (transport identifier) structure
  *
  * pending conn offload completion queue manager
  */
@@ -646,7 +646,7 @@ static int bnx2i_ep_ofld_list_add(struct bnx2i_hba *hba,
 /**
  * bnx2i_ep_ofld_list_del - add an entry to ep offload pending list
  * @hba: 		pointer to adapter instance
- * @ep: 		pointer to endpoint (transport indentifier) structure
+ * @ep: 		pointer to endpoint (transport identifier) structure
  *
  * pending conn offload completion queue manager
  */
@@ -721,7 +721,7 @@ bnx2i_find_ep_in_destroy_list(struct bnx2i_hba *hba, u32 iscsi_cid)
 /**
  * bnx2i_ep_active_list_add - add an entry to ep active list
  * @hba:	pointer to adapter instance
- * @ep:		pointer to endpoint (transport indentifier) structure
+ * @ep:		pointer to endpoint (transport identifier) structure
  *
  * current active conn queue manager
  */
@@ -737,7 +737,7 @@ static void bnx2i_ep_active_list_add(struct bnx2i_hba *hba,
 /**
  * bnx2i_ep_active_list_del - deletes an entry to ep active list
  * @hba:	pointer to adapter instance
- * @ep:		pointer to endpoint (transport indentifier) structure
+ * @ep:		pointer to endpoint (transport identifier) structure
  *
  * current active conn queue manager
  */
@@ -1695,7 +1695,7 @@ no_nx2_route:
 /**
  * bnx2i_tear_down_conn - tear down iscsi/tcp connection and free resources
  * @hba:	pointer to adapter instance
- * @ep:		endpoint (transport indentifier) structure
+ * @ep:		endpoint (transport identifier) structure
  *
  * destroys cm_sock structure and on chip iscsi context
  */
diff --git a/drivers/scsi/ncr53c8xx.c b/drivers/scsi/ncr53c8xx.c
index 5982a587babc..7d014b11df62 100644
--- a/drivers/scsi/ncr53c8xx.c
+++ b/drivers/scsi/ncr53c8xx.c
@@ -1615,7 +1615,7 @@ struct ncb {
 	spinlock_t	smp_lock;	/* Lock for SMP threading       */
 
 	/*----------------------------------------------------------------
-	**	Chip and controller indentification.
+	**	Chip and controller identification.
 	**----------------------------------------------------------------
 	*/
 	int		unit;		/* Unit number			*/
diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.h b/drivers/scsi/sym53c8xx_2/sym_glue.h
index b80bf709f104..805369521df8 100644
--- a/drivers/scsi/sym53c8xx_2/sym_glue.h
+++ b/drivers/scsi/sym53c8xx_2/sym_glue.h
@@ -174,7 +174,7 @@ struct sym_slcb {
  */
 struct sym_shcb {
 	/*
-	 *  Chip and controller indentification.
+	 *  Chip and controller identification.
 	 */
 	int		unit;
 	char		inst_name[16];
diff --git a/drivers/staging/iio/adc/ad7606.h b/drivers/staging/iio/adc/ad7606.h
index 9221a74efd18..93c7299e8353 100644
--- a/drivers/staging/iio/adc/ad7606.h
+++ b/drivers/staging/iio/adc/ad7606.h
@@ -42,7 +42,7 @@ struct ad7606_platform_data {
 
 /**
  * struct ad7606_chip_info - chip specifc information
- * @name:		indentification string for chip
+ * @name:		identification string for chip
  * @int_vref_mv:	the internal reference voltage
  * @channels:		channel specification
  * @num_channels:	number of channels
diff --git a/include/linux/amba/serial.h b/include/linux/amba/serial.h
index 62d9303c2837..0ddb5c02ad8b 100644
--- a/include/linux/amba/serial.h
+++ b/include/linux/amba/serial.h
@@ -40,7 +40,7 @@
 #define UART010_LCRL		0x10	/* Line control register, low byte. */
 #define UART010_CR		0x14	/* Control register. */
 #define UART01x_FR		0x18	/* Flag register (Read only). */
-#define UART010_IIR		0x1C	/* Interrupt indentification register (Read). */
+#define UART010_IIR		0x1C	/* Interrupt identification register (Read). */
 #define UART010_ICR		0x1C	/* Interrupt clear register (Write). */
 #define ST_UART011_LCRH_RX	0x1C    /* Rx line control register. */
 #define UART01x_ILPR		0x20	/* IrDA low power counter register. */
diff --git a/include/linux/mfd/si476x-core.h b/include/linux/mfd/si476x-core.h
index ba89b94e4a56..674b45d5a757 100644
--- a/include/linux/mfd/si476x-core.h
+++ b/include/linux/mfd/si476x-core.h
@@ -316,7 +316,7 @@ enum si476x_smoothmetrics {
  * response to 'FM_RD_STATUS' command
  * @rdstpptyint: Traffic program flag(TP) and/or program type(PTY)
  * code has changed.
- * @rdspiint: Program indentifiaction(PI) code has changed.
+ * @rdspiint: Program identification(PI) code has changed.
  * @rdssyncint: RDS synchronization has changed.
  * @rdsfifoint: RDS was received and the RDS FIFO has at least
  * 'FM_RDS_INTERRUPT_FIFO_COUNT' elements in it.
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 8ed4ae943053..9ff50c9a0009 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1546,7 +1546,7 @@ static inline void *netdev_priv(const struct net_device *dev)
 #define SET_NETDEV_DEV(net, pdev)	((net)->dev.parent = (pdev))
 
 /* Set the sysfs device type for the network logical device to allow
- * fin grained indentification of different network device types. For
+ * fine-grained identification of different network device types. For
  * example Ethernet, Wirelss LAN, Bluetooth, WiMAX etc.
  */
 #define SET_NETDEV_DEVTYPE(net, devtype)	((net)->dev.type = (devtype))
diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 1a966afbbfa8..7170b4b434e1 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -238,7 +238,7 @@ struct l2cap_conn_rsp {
 #define L2CAP_PSM_SDP		0x0001
 #define L2CAP_PSM_RFCOMM	0x0003
 
-/* channel indentifier */
+/* channel identifier */
 #define L2CAP_CID_SIGNALING	0x0001
 #define L2CAP_CID_CONN_LESS	0x0002
 #define L2CAP_CID_A2MP		0x0003
diff --git a/net/can/af_can.c b/net/can/af_can.c
index 3ab8dd2e1282..d249874a366d 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -420,7 +420,7 @@ static struct hlist_head *find_rcv_list(canid_t *can_id, canid_t *mask,
  * @mask: CAN mask (see description)
  * @func: callback function on filter match
  * @data: returned parameter for callback function
- * @ident: string for calling module indentification
+ * @ident: string for calling module identification
  *
  * Description:
  *  Invokes the callback function with the received sk_buff and the given
diff --git a/net/netfilter/xt_set.c b/net/netfilter/xt_set.c
index 31790e789e22..4b9d6b4f1eb0 100644
--- a/net/netfilter/xt_set.c
+++ b/net/netfilter/xt_set.c
@@ -84,7 +84,7 @@ set_match_v0_checkentry(const struct xt_mtchk_param *par)
 	index = ip_set_nfnl_get_byindex(info->match_set.index);
 
 	if (index == IPSET_INVALID_ID) {
-		pr_warning("Cannot find set indentified by id %u to match\n",
+		pr_warning("Cannot find set identified by id %u to match\n",
 			   info->match_set.index);
 		return -ENOENT;
 	}
@@ -205,7 +205,7 @@ set_match_v1_checkentry(const struct xt_mtchk_param *par)
 	index = ip_set_nfnl_get_byindex(info->match_set.index);
 
 	if (index == IPSET_INVALID_ID) {
-		pr_warning("Cannot find set indentified by id %u to match\n",
+		pr_warning("Cannot find set identified by id %u to match\n",
 			   info->match_set.index);
 		return -ENOENT;
 	}
-- 
cgit 


From 49e60de6852f1ce63851d9b5a4bf67e33966babe Mon Sep 17 00:00:00 2001
From: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Date: Thu, 12 Sep 2013 02:02:44 -0700
Subject: Documentation/kvm: Update cpuid documentation for steal time and pv
 eoi

Thanks Michael S Tsirkin for rewriting the description and suggestions.

Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Rob Landley <rob@landley.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 Documentation/virtual/kvm/cpuid.txt | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Documentation/virtual/kvm/cpuid.txt b/Documentation/virtual/kvm/cpuid.txt
index 22ff659bc0fb..3c65feb83010 100644
--- a/Documentation/virtual/kvm/cpuid.txt
+++ b/Documentation/virtual/kvm/cpuid.txt
@@ -43,6 +43,13 @@ KVM_FEATURE_CLOCKSOURCE2           ||     3 || kvmclock available at msrs
 KVM_FEATURE_ASYNC_PF               ||     4 || async pf can be enabled by
                                    ||       || writing to msr 0x4b564d02
 ------------------------------------------------------------------------------
+KVM_FEATURE_STEAL_TIME             ||     5 || steal time can be enabled by
+                                   ||       || writing to msr 0x4b564d03.
+------------------------------------------------------------------------------
+KVM_FEATURE_PV_EOI                 ||     6 || paravirtualized end of interrupt
+                                   ||       || handler can be enabled by writing
+                                   ||       || to msr 0x4b564d04.
+------------------------------------------------------------------------------
 KVM_FEATURE_PV_UNHALT              ||     7 || guest checks this feature bit
                                    ||       || before enabling paravirtualized
                                    ||       || spinlock support.
-- 
cgit 


From 002ace782cc8eef178808cc2b36853750154fe19 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Sun, 15 Sep 2013 11:35:37 +0200
Subject: kexec: Typo s/the/then/

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 kernel/kexec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/kexec.c b/kernel/kexec.c
index 59f7b55ba745..cb1f3454eea6 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -921,7 +921,7 @@ static int kimage_load_segment(struct kimage *image,
  *   reinitialize them.
  *
  * - A machine specific part that includes the syscall number
- *   and the copies the image to it's final destination.  And
+ *   and then copies the image to it's final destination.  And
  *   jumps into the image at entry.
  *
  * kexec does not sync, or unmount filesystems so if you need
-- 
cgit 


From 18f6533277cf21614bee1fb1eed2633dce0cf242 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Sun, 15 Sep 2013 12:01:33 +0200
Subject: mm/Kconfig: Grammar s/an/a/

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 mm/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/Kconfig b/mm/Kconfig
index 6cdd27043303..79ac9915d504 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -20,7 +20,7 @@ config FLATMEM_MANUAL
 
 	  Some users of more advanced features like NUMA and
 	  memory hotplug may have different options here.
-	  DISCONTIGMEM is an more mature, better tested system,
+	  DISCONTIGMEM is a more mature, better tested system,
 	  but is incompatible with memory hotplug and may suffer
 	  decreased performance over SPARSEMEM.  If unsure between
 	  "Sparse Memory" and "Discontiguous Memory", choose
-- 
cgit 


From aa5e5dc2a8878ecf1a94819d889939023fd576c9 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Wed, 18 Sep 2013 06:00:43 +0200
Subject: treewide: fix "distingush" typo

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 arch/m32r/include/asm/mmu_context.h    | 2 +-
 arch/mn10300/include/asm/mmu_context.h | 2 +-
 arch/powerpc/platforms/pseries/nvram.c | 2 +-
 arch/sh/include/asm/mmu_context.h      | 2 +-
 arch/x86/kernel/cpu/amd.c              | 2 +-
 drivers/input/serio/i8042.c            | 2 +-
 drivers/md/raid5.h                     | 2 +-
 7 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/m32r/include/asm/mmu_context.h b/arch/m32r/include/asm/mmu_context.h
index a979a4198168..9fc78fc44445 100644
--- a/arch/m32r/include/asm/mmu_context.h
+++ b/arch/m32r/include/asm/mmu_context.h
@@ -45,7 +45,7 @@ static inline void get_new_mmu_context(struct mm_struct *mm)
 		   Flush all TLB and start new cycle. */
 		local_flush_tlb_all();
 		/* Fix version if needed.
-		   Note that we avoid version #0 to distingush NO_CONTEXT. */
+		   Note that we avoid version #0 to distinguish NO_CONTEXT. */
 		if (!mc)
 			mmu_context_cache = mc = MMU_CONTEXT_FIRST_VERSION;
 	}
diff --git a/arch/mn10300/include/asm/mmu_context.h b/arch/mn10300/include/asm/mmu_context.h
index c67c2b5365a6..75dbe696f830 100644
--- a/arch/mn10300/include/asm/mmu_context.h
+++ b/arch/mn10300/include/asm/mmu_context.h
@@ -71,7 +71,7 @@ static inline unsigned long allocate_mmu_context(struct mm_struct *mm)
 		local_flush_tlb_all();
 
 		/* fix the TLB version if needed (we avoid version #0 so as to
-		 * distingush MMU_NO_CONTEXT) */
+		 * distinguish MMU_NO_CONTEXT) */
 		if (!mc)
 			*pmc = mc = MMU_CONTEXT_FIRST_VERSION;
 	}
diff --git a/arch/powerpc/platforms/pseries/nvram.c b/arch/powerpc/platforms/pseries/nvram.c
index d276cd3edd8f..10630eac68ec 100644
--- a/arch/powerpc/platforms/pseries/nvram.c
+++ b/arch/powerpc/platforms/pseries/nvram.c
@@ -31,7 +31,7 @@
 #define NVRW_CNT 0x20
 
 /*
- * Set oops header version to distingush between old and new format header.
+ * Set oops header version to distinguish between old and new format header.
  * lnx,oops-log partition max size is 4000, header version > 4000 will
  * help in identifying new header.
  */
diff --git a/arch/sh/include/asm/mmu_context.h b/arch/sh/include/asm/mmu_context.h
index 21c5088788da..b9d9489a5012 100644
--- a/arch/sh/include/asm/mmu_context.h
+++ b/arch/sh/include/asm/mmu_context.h
@@ -81,7 +81,7 @@ static inline void get_mmu_context(struct mm_struct *mm, unsigned int cpu)
 
 		/*
 		 * Fix version; Note that we avoid version #0
-		 * to distingush NO_CONTEXT.
+		 * to distinguish NO_CONTEXT.
 		 */
 		if (!asid)
 			asid = MMU_CONTEXT_FIRST_VERSION;
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 903a264af981..3538a1b0aeac 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -339,7 +339,7 @@ static void amd_get_topology(struct cpuinfo_x86 *c)
 #endif
 
 /*
- * On a AMD dual core setup the lower bits of the APIC id distingush the cores.
+ * On a AMD dual core setup the lower bits of the APIC id distinguish the cores.
  * Assumes number of cores is a power of two.
  */
 static void amd_detect_cmp(struct cpuinfo_x86 *c)
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index 78e4de42efaa..957e387c1cbf 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -1031,7 +1031,7 @@ static void i8042_controller_reset(bool force_reset)
 /*
  * i8042_panic_blink() will turn the keyboard LEDs on or off and is called
  * when kernel panics. Flashing LEDs is useful for users running X who may
- * not see the console and will help distingushing panics from "real"
+ * not see the console and will help distinguishing panics from "real"
  * lockups.
  *
  * Note that DELAY has a limit of 10ms so we will not get stuck here
diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h
index 70c49329ca9a..5c9797c7bbe0 100644
--- a/drivers/md/raid5.h
+++ b/drivers/md/raid5.h
@@ -49,7 +49,7 @@
  * can't distinguish between a clean block that has been generated
  * from parity calculations, and a clean block that has been
  * successfully written to the spare ( or to parity when resyncing).
- * To distingush these states we have a stripe bit STRIPE_INSYNC that
+ * To distinguish these states we have a stripe bit STRIPE_INSYNC that
  * is set whenever a write is scheduled to the spare, or to the parity
  * disc if there is no spare.  A sync request clears this bit, and
  * when we find it set with no buffers locked, we know the sync is
-- 
cgit 


From 73678804f4e5255dcb9f5c1892f9a7e94d0e925d Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Wed, 18 Sep 2013 06:04:48 +0200
Subject: treewide: fix "usefull" typo

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/base/dma-contiguous.c        | 2 +-
 drivers/net/wireless/ath/ath5k/dma.c | 2 +-
 sound/soc/codecs/alc5632.c           | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/base/dma-contiguous.c b/drivers/base/dma-contiguous.c
index 6c9cdaa9200d..2d730fdad7a3 100644
--- a/drivers/base/dma-contiguous.c
+++ b/drivers/base/dma-contiguous.c
@@ -49,7 +49,7 @@ struct cma *dma_contiguous_default_area;
 
 /*
  * Default global CMA area size can be defined in kernel's .config.
- * This is usefull mainly for distro maintainers to create a kernel
+ * This is useful mainly for distro maintainers to create a kernel
  * that works correctly for most supported systems.
  * The size can be set in bytes or as a percentage of the total memory
  * in the system.
diff --git a/drivers/net/wireless/ath/ath5k/dma.c b/drivers/net/wireless/ath/ath5k/dma.c
index ce86f158423b..ba200b24be64 100644
--- a/drivers/net/wireless/ath/ath5k/dma.c
+++ b/drivers/net/wireless/ath/ath5k/dma.c
@@ -661,7 +661,7 @@ ath5k_hw_get_isr(struct ath5k_hw *ah, enum ath5k_int *interrupt_mask)
 			ah->ah_txq_isr_txok_all |= AR5K_REG_MS(sisr1,
 						AR5K_SISR1_QCU_TXEOL);
 
-		/* Currently this is not much usefull since we treat
+		/* Currently this is not much useful since we treat
 		 * all queues the same way if we get a TXURN (update
 		 * tx trigger level) but we might need it later on*/
 		if (pisr & AR5K_ISR_TXURN)
diff --git a/sound/soc/codecs/alc5632.c b/sound/soc/codecs/alc5632.c
index f2e62e45f912..19e9f222d09c 100644
--- a/sound/soc/codecs/alc5632.c
+++ b/sound/soc/codecs/alc5632.c
@@ -614,7 +614,7 @@ struct _pll_div {
 };
 
 /* Note : pll code from original alc5632 driver. Not sure of how good it is */
-/* usefull only for master mode */
+/* useful only for master mode */
 static const struct _pll_div codec_master_pll_div[] = {
 
 	{  2048000,  8192000,	0x0ea0},
-- 
cgit 


From 23d6d3db66151d9f8e7f2ea6b2c4fc6cc0097a66 Mon Sep 17 00:00:00 2001
From: Anoop Thomas Mathew <atm@profoundis.com>
Date: Fri, 20 Sep 2013 09:25:41 +0530
Subject: doc: typo on word accounting in kprobes.c in mutliple architectures

Signed-off-by: Anoop Thomas Mathew <atm@profoundis.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 arch/arc/kernel/kprobes.c     | 2 +-
 arch/ia64/kernel/kprobes.c    | 2 +-
 arch/powerpc/kernel/kprobes.c | 2 +-
 arch/s390/kernel/kprobes.c    | 2 +-
 arch/sparc/kernel/kprobes.c   | 2 +-
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/arc/kernel/kprobes.c b/arch/arc/kernel/kprobes.c
index 72f97822784a..7446c8dcb915 100644
--- a/arch/arc/kernel/kprobes.c
+++ b/arch/arc/kernel/kprobes.c
@@ -327,7 +327,7 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, unsigned long trapnr)
 		 */
 
 		/* We increment the nmissed count for accounting,
-		 * we can also use npre/npostfault count for accouting
+		 * we can also use npre/npostfault count for accounting
 		 * these specific fault cases.
 		 */
 		kprobes_inc_nmissed_count(cur);
diff --git a/arch/ia64/kernel/kprobes.c b/arch/ia64/kernel/kprobes.c
index f8280a766a78..074fde49c9e6 100644
--- a/arch/ia64/kernel/kprobes.c
+++ b/arch/ia64/kernel/kprobes.c
@@ -947,7 +947,7 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 	case KPROBE_HIT_SSDONE:
 		/*
 		 * We increment the nmissed count for accounting,
-		 * we can also use npre/npostfault count for accouting
+		 * we can also use npre/npostfault count for accounting
 		 * these specific fault cases.
 		 */
 		kprobes_inc_nmissed_count(cur);
diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c
index 2156ea90eb54..90fab64d911d 100644
--- a/arch/powerpc/kernel/kprobes.c
+++ b/arch/powerpc/kernel/kprobes.c
@@ -429,7 +429,7 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 	case KPROBE_HIT_SSDONE:
 		/*
 		 * We increment the nmissed count for accounting,
-		 * we can also use npre/npostfault count for accouting
+		 * we can also use npre/npostfault count for accounting
 		 * these specific fault cases.
 		 */
 		kprobes_inc_nmissed_count(cur);
diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c
index adbbe7f1cb0d..4f869b2e63f4 100644
--- a/arch/s390/kernel/kprobes.c
+++ b/arch/s390/kernel/kprobes.c
@@ -543,7 +543,7 @@ static int __kprobes kprobe_trap_handler(struct pt_regs *regs, int trapnr)
 	case KPROBE_HIT_SSDONE:
 		/*
 		 * We increment the nmissed count for accounting,
-		 * we can also use npre/npostfault count for accouting
+		 * we can also use npre/npostfault count for accounting
 		 * these specific fault cases.
 		 */
 		kprobes_inc_nmissed_count(p);
diff --git a/arch/sparc/kernel/kprobes.c b/arch/sparc/kernel/kprobes.c
index e72212148d2a..d3d5d388c557 100644
--- a/arch/sparc/kernel/kprobes.c
+++ b/arch/sparc/kernel/kprobes.c
@@ -349,7 +349,7 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
 	case KPROBE_HIT_SSDONE:
 		/*
 		 * We increment the nmissed count for accounting,
-		 * we can also use npre/npostfault count for accouting
+		 * we can also use npre/npostfault count for accounting
 		 * these specific fault cases.
 		 */
 		kprobes_inc_nmissed_count(cur);
-- 
cgit 


From 9b74246f3a074b6072fa81002805ceaefb87a013 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 14 Oct 2013 16:20:03 +0300
Subject: Bluetooth: Reorganize set_connectable HCI command sending

This patch moves all the decisions of which HCI commands to send (or not
to send) to the code between hci_req_init() and hci_req_run() this
allows us to further extend the request with further commands but still
keep the same logic of handling whether to return a direct mgmt response
in the case that no HCI commands were sent.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 36 ++++++++++++++++++++----------------
 1 file changed, 20 insertions(+), 16 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 020f95b84b09..cfd8d448c25b 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1144,30 +1144,29 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 		goto failed;
 	}
 
-	if (!!cp->val == test_bit(HCI_PSCAN, &hdev->flags)) {
-		err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE, hdev);
-		goto failed;
-	}
-
 	cmd = mgmt_pending_add(sk, MGMT_OP_SET_CONNECTABLE, hdev, data, len);
 	if (!cmd) {
 		err = -ENOMEM;
 		goto failed;
 	}
 
-	if (cp->val) {
-		scan = SCAN_PAGE;
-	} else {
-		scan = 0;
+	hci_req_init(&req, hdev);
 
-		if (test_bit(HCI_ISCAN, &hdev->flags) &&
-		    hdev->discov_timeout > 0)
-			cancel_delayed_work(&hdev->discov_off);
-	}
+	if (test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags) &&
+	    cp->val != test_bit(HCI_PSCAN, &hdev->flags)) {
 
-	hci_req_init(&req, hdev);
+		if (cp->val) {
+			scan = SCAN_PAGE;
+		} else {
+			scan = 0;
 
-	hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+			if (test_bit(HCI_ISCAN, &hdev->flags) &&
+					hdev->discov_timeout > 0)
+				cancel_delayed_work(&hdev->discov_off);
+		}
+
+		hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+	}
 
 	/* If we're going from non-connectable to connectable or
 	 * vice-versa when fast connectable is enabled ensure that fast
@@ -1179,8 +1178,13 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 		write_fast_connectable(&req, false);
 
 	err = hci_req_run(&req, set_connectable_complete);
-	if (err < 0)
+	if (err < 0) {
 		mgmt_pending_remove(cmd);
+		if (err == -ENODATA)
+			err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE,
+						hdev);
+		goto failed;
+	}
 
 failed:
 	hci_dev_unlock(hdev);
-- 
cgit 


From d7b856f9380d95a9d663180701da904123c035b8 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 14 Oct 2013 16:20:04 +0300
Subject: Bluetooth: Move more logic into set_connectable complete callback

This patch moves the responsibility of setting/clearing the
HCI_CONNECTABLE flag to the request completion callback of the Set
Connectable command. This will allow us to cleanly add support for LE
Advertising hooks in later patches.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 23 +++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index cfd8d448c25b..8dcea7726f8d 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1075,6 +1075,8 @@ static void write_fast_connectable(struct hci_request *req, bool enable)
 static void set_connectable_complete(struct hci_dev *hdev, u8 status)
 {
 	struct pending_cmd *cmd;
+	struct mgmt_mode *cp;
+	bool changed;
 
 	BT_DBG("status 0x%02x", status);
 
@@ -1084,8 +1086,17 @@ static void set_connectable_complete(struct hci_dev *hdev, u8 status)
 	if (!cmd)
 		goto unlock;
 
+	cp = cmd->param;
+	if (cp->val)
+		changed = !test_and_set_bit(HCI_CONNECTABLE, &hdev->dev_flags);
+	else
+		changed = test_and_clear_bit(HCI_CONNECTABLE, &hdev->dev_flags);
+
 	send_settings_rsp(cmd->sk, MGMT_OP_SET_CONNECTABLE, hdev);
 
+	if (changed)
+		new_settings(hdev, cmd->sk);
+
 	mgmt_pending_remove(cmd);
 
 unlock:
@@ -4053,10 +4064,16 @@ int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable)
 
 int mgmt_connectable(struct hci_dev *hdev, u8 connectable)
 {
-	struct pending_cmd *cmd;
 	bool changed = false;
 	int err = 0;
 
+	/* Nothing needed here if there's a pending command since that
+	 * commands request completion callback takes care of everything
+	 * necessary.
+	 */
+	if (mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev))
+		return 0;
+
 	if (connectable) {
 		if (!test_and_set_bit(HCI_CONNECTABLE, &hdev->dev_flags))
 			changed = true;
@@ -4065,10 +4082,8 @@ int mgmt_connectable(struct hci_dev *hdev, u8 connectable)
 			changed = true;
 	}
 
-	cmd = mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev);
-
 	if (changed)
-		err = new_settings(hdev, cmd ? cmd->sk : NULL);
+		err = new_settings(hdev, NULL);
 
 	return err;
 }
-- 
cgit 


From 37438c1f7f6d26e1532d6bfc588c958b7dfae668 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 14 Oct 2013 16:20:05 +0300
Subject: Bluetooth: Add missing error handling for Set Connectable

If the HCI commands related to the Set Connectable command fail we will
get a non-zero status in the request completion callback. In such a case
we must respond with the appropriate command status message to user space.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 8dcea7726f8d..a5c015cadd55 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1086,6 +1086,12 @@ static void set_connectable_complete(struct hci_dev *hdev, u8 status)
 	if (!cmd)
 		goto unlock;
 
+	if (status) {
+		u8 mgmt_err = mgmt_status(status);
+		cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
+		goto remove_cmd;
+	}
+
 	cp = cmd->param;
 	if (cp->val)
 		changed = !test_and_set_bit(HCI_CONNECTABLE, &hdev->dev_flags);
@@ -1097,6 +1103,7 @@ static void set_connectable_complete(struct hci_dev *hdev, u8 status)
 	if (changed)
 		new_settings(hdev, cmd->sk);
 
+remove_cmd:
 	mgmt_pending_remove(cmd);
 
 unlock:
-- 
cgit 


From 95c66e75baf34024213a779dac08f95e6b5aa6a4 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 14 Oct 2013 16:20:06 +0300
Subject: Bluetooth: Move static advertising functions to avoid forward
 declarations

These functions will soon be used by set_connectable() so move them to a
location in mgmt.c that doesn't require forward declarations.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 56 ++++++++++++++++++++++++++--------------------------
 1 file changed, 28 insertions(+), 28 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index a5c015cadd55..caa552cf21f3 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1072,6 +1072,34 @@ static void write_fast_connectable(struct hci_request *req, bool enable)
 		hci_req_add(req, HCI_OP_WRITE_PAGE_SCAN_TYPE, 1, &type);
 }
 
+static void enable_advertising(struct hci_request *req)
+{
+	struct hci_dev *hdev = req->hdev;
+	struct hci_cp_le_set_adv_param cp;
+	u8 enable = 0x01;
+
+	memset(&cp, 0, sizeof(cp));
+	cp.min_interval = __constant_cpu_to_le16(0x0800);
+	cp.max_interval = __constant_cpu_to_le16(0x0800);
+	cp.type = LE_ADV_IND;
+	if (bacmp(&hdev->bdaddr, BDADDR_ANY))
+		cp.own_address_type = ADDR_LE_DEV_PUBLIC;
+	else
+		cp.own_address_type = ADDR_LE_DEV_RANDOM;
+	cp.channel_map = 0x07;
+
+	hci_req_add(req, HCI_OP_LE_SET_ADV_PARAM, sizeof(cp), &cp);
+
+	hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable);
+}
+
+static void disable_advertising(struct hci_request *req)
+{
+	u8 enable = 0x00;
+
+	hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable);
+}
+
 static void set_connectable_complete(struct hci_dev *hdev, u8 status)
 {
 	struct pending_cmd *cmd;
@@ -1440,34 +1468,6 @@ unlock:
 	return err;
 }
 
-static void enable_advertising(struct hci_request *req)
-{
-	struct hci_dev *hdev = req->hdev;
-	struct hci_cp_le_set_adv_param cp;
-	u8 enable = 0x01;
-
-	memset(&cp, 0, sizeof(cp));
-	cp.min_interval = __constant_cpu_to_le16(0x0800);
-	cp.max_interval = __constant_cpu_to_le16(0x0800);
-	cp.type = LE_ADV_IND;
-	if (bacmp(&hdev->bdaddr, BDADDR_ANY))
-		cp.own_address_type = ADDR_LE_DEV_PUBLIC;
-	else
-		cp.own_address_type = ADDR_LE_DEV_RANDOM;
-	cp.channel_map = 0x07;
-
-	hci_req_add(req, HCI_OP_LE_SET_ADV_PARAM, sizeof(cp), &cp);
-
-	hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable);
-}
-
-static void disable_advertising(struct hci_request *req)
-{
-	u8 enable = 0x00;
-
-	hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable);
-}
-
 static void le_enable_complete(struct hci_dev *hdev, u8 status)
 {
 	struct cmd_lookup match = { NULL, hdev };
-- 
cgit 


From c6d887aaf8f772fbe07604390975921ad3350a58 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 14 Oct 2013 16:20:07 +0300
Subject: Bluetooth: Fix updating advertising data needlessly

We need to ensure that the advertising data is up-to-date whenever
advertising is enabled, but when disabling advertising we do not need to
worry about it (since it will eventually get fixed as soon as
advertising is enabled again). This patch fixes this in the command
complete callback for set_adv_enable.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/hci_event.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index aa6fed3a553b..da2bc3d3d289 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -924,7 +924,7 @@ static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb)
 			clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
 	}
 
-	if (!test_bit(HCI_INIT, &hdev->flags)) {
+	if (*sent && !test_bit(HCI_INIT, &hdev->flags)) {
 		struct hci_request req;
 
 		hci_req_init(&req, hdev);
-- 
cgit 


From a26a8746ce5eee6c3dd11f98f5dadb56c5f91ed7 Mon Sep 17 00:00:00 2001
From: Michael Witten <mfwitten@gmail.com>
Date: Wed, 14 Aug 2013 09:59:45 +0000
Subject: Docs: Kconfig: `devlopers' -> `developers'

Signed-off-by: Michael Witten <mfwitten@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 fs/btrfs/Kconfig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/Kconfig b/fs/btrfs/Kconfig
index 2b3b83296977..e374bf96a442 100644
--- a/fs/btrfs/Kconfig
+++ b/fs/btrfs/Kconfig
@@ -59,7 +59,8 @@ config BTRFS_FS_RUN_SANITY_TESTS
 	help
 	  This will run some basic sanity tests on the free space cache
 	  code to make sure it is acting as it should.  These are mostly
-	  regression tests and are only really interesting to btrfs devlopers.
+	  regression tests and are only really interesting to btrfs
+	  developers.
 
 	  If unsure, say N.
 
-- 
cgit 


From 0d7a0a8a7480a401b29c8e38c3b8f7c129b68db9 Mon Sep 17 00:00:00 2001
From: Michael Witten <mfwitten@gmail.com>
Date: Thu, 15 Sep 2011 21:07:26 +0000
Subject: DRM: comment: `halve' -> `half'

Signed-off-by: Michael Witten <mfwitten@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/gpu/drm/drm_irq.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index f92da0a32f0d..062dc22a6673 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -497,8 +497,8 @@ void drm_calc_timestamping_constants(struct drm_crtc *crtc)
 	/* Dot clock in Hz: */
 	dotclock = (u64) crtc->hwmode.clock * 1000;
 
-	/* Fields of interlaced scanout modes are only halve a frame duration.
-	 * Double the dotclock to get halve the frame-/line-/pixelduration.
+	/* Fields of interlaced scanout modes are only half a frame duration.
+	 * Double the dotclock to get half the frame-/line-/pixelduration.
 	 */
 	if (crtc->hwmode.flags & DRM_MODE_FLAG_INTERLACE)
 		dotclock *= 2;
-- 
cgit 


From bf038227a01263dc29fa7053e600ec5a939d0bbd Mon Sep 17 00:00:00 2001
From: Xishi Qiu <qiuxishi@huawei.com>
Date: Fri, 30 Aug 2013 17:39:28 +0800
Subject: doc: Documentation/DMA-attributes.txt fix typo

Fix some typos in Documentation/DMA-attributes.txt.

Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Acked-by: Rob Landley <rob@landley.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 Documentation/DMA-attributes.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Documentation/DMA-attributes.txt b/Documentation/DMA-attributes.txt
index e59480db9ee0..cc2450d80310 100644
--- a/Documentation/DMA-attributes.txt
+++ b/Documentation/DMA-attributes.txt
@@ -13,7 +13,7 @@ all pending DMA writes to complete, and thus provides a mechanism to
 strictly order DMA from a device across all intervening busses and
 bridges.  This barrier is not specific to a particular type of
 interconnect, it applies to the system as a whole, and so its
-implementation must account for the idiosyncracies of the system all
+implementation must account for the idiosyncrasies of the system all
 the way from the DMA device to memory.
 
 As an example of a situation where DMA_ATTR_WRITE_BARRIER would be
@@ -60,7 +60,7 @@ such mapping is non-trivial task and consumes very limited resources
 Buffers allocated with this attribute can be only passed to user space
 by calling dma_mmap_attrs(). By using this API, you are guaranteeing
 that you won't dereference the pointer returned by dma_alloc_attr(). You
-can threat it as a cookie that must be passed to dma_mmap_attrs() and
+can treat it as a cookie that must be passed to dma_mmap_attrs() and
 dma_free_attrs(). Make sure that both of these also get this attribute
 set on each call.
 
@@ -82,7 +82,7 @@ to 'device' domain, what synchronizes CPU caches for the given region
 (usually it means that the cache has been flushed or invalidated
 depending on the dma direction). However, next calls to
 dma_map_{single,page,sg}() for other devices will perform exactly the
-same sychronization operation on the CPU cache. CPU cache sychronization
+same synchronization operation on the CPU cache. CPU cache synchronization
 might be a time consuming operation, especially if the buffers are
 large, so it is highly recommended to avoid it if possible.
 DMA_ATTR_SKIP_CPU_SYNC allows platform code to skip synchronization of
-- 
cgit 


From 6c7842e0a1fb9c513a39a63bf7c093833ea9f428 Mon Sep 17 00:00:00 2001
From: Henrik Austad <henrik@austad.us>
Date: Wed, 11 Sep 2013 14:43:20 +0200
Subject: mm: update 00-INDEX

The following files moved files out of Documentation/vm/
c6dd897f ("mm: move page-types.c from Documentation to tools/vm")
f0f57b2b ("move hugepage test examples to tools/testing/selftests/vm)

Remove these files from vm/00-INDEX.

The following commits added new files do Documentation/vm/
4fe4746a ("mm/fs: cleancache documentation") added vm/cleancache.txt
d65bfacb ("mm: highmem documentation") added vm/highmem.txt
1c9bf22c ("thp: transparent hugepage support documentation") added
           vm/transhuge.txt
0f8975ec ("mm: soft-dirty bits for user memory changes tracking")
61b0d760 ("zswap: add documentation")
27c6aec2 ("mm: frontswap: config and doc files")

Add the missing documentation-files with a short description to 00-INDEX

Signed-off-by: Henrik Austad <henrik@austad.us>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 Documentation/vm/00-INDEX | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/Documentation/vm/00-INDEX b/Documentation/vm/00-INDEX
index 5481c8ba3412..a39d06680e1c 100644
--- a/Documentation/vm/00-INDEX
+++ b/Documentation/vm/00-INDEX
@@ -4,10 +4,12 @@ active_mm.txt
 	- An explanation from Linus about tsk->active_mm vs tsk->mm.
 balance
 	- various information on memory balancing.
-hugepage-mmap.c
-	- Example app using huge page memory with the mmap system call.
-hugepage-shm.c
-	- Example app using huge page memory with Sys V shared memory system calls.
+cleancache.txt
+	- Intro to cleancache and page-granularity victim cache.
+frontswap.txt
+	- Outline frontswap, part of the transcendent memory frontend.
+highmem.txt
+	- Outline of highmem and common issues.
 hugetlbpage.txt
 	- a brief summary of hugetlbpage support in the Linux kernel.
 hwpoison.txt
@@ -16,21 +18,23 @@ ksm.txt
 	- how to use the Kernel Samepage Merging feature.
 locking
 	- info on how locking and synchronization is done in the Linux vm code.
-map_hugetlb.c
-	- an example program that uses the MAP_HUGETLB mmap flag.
 numa
 	- information about NUMA specific code in the Linux vm.
 numa_memory_policy.txt
 	- documentation of concepts and APIs of the 2.6 memory policy support.
 overcommit-accounting
 	- description of the Linux kernels overcommit handling modes.
-page-types.c
-	- Tool for querying page flags
 page_migration
 	- description of page migration in NUMA systems.
 pagemap.txt
 	- pagemap, from the userspace perspective
 slub.txt
 	- a short users guide for SLUB.
+soft-dirty.txt
+	- short explanation for soft-dirty PTEs
+transhuge.txt
+	- Transparent Hugepage Support, alternative way of using hugepages.
 unevictable-lru.txt
 	- Unevictable LRU infrastructure
+zswap.txt
+	- Intro to compressed cache for swap pages
-- 
cgit 


From 5e049fce368dfe07702c3664add9ae7b45df1a9a Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Fri, 11 Oct 2013 15:43:17 -0600
Subject: ASoC: tegra: support new register layouts in Tegra124

Tegra124 introduces some small changes to the layout of some registers.
Modify the affected drivers to program those registers appropriately
based on which SoC they're running on.

Tegra124 also introduced some new modules on the AHUB configlink register
bus. These will require new entries in configlink_clocks[] in the AHUB
driver. However, supporting that change likely relies on switching Tegra
to the common reset framework, so I'll defer that change for now.

Based-on-work-by: Arun Shamanna Lakshmi <aruns@nvidia.com>
Based-on-work-by: Songhee Baek <sbaek@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/tegra/tegra30_ahub.c     | 115 ++++++++++++++++++++++++++++++++-----
 sound/soc/tegra/tegra30_ahub.h     |  38 +++++++++++-
 sound/soc/tegra/tegra30_i2s.c      |  51 +++++++++++-----
 sound/soc/tegra/tegra30_i2s.h      |   7 +++
 sound/soc/tegra/tegra_asoc_utils.c |   2 +
 sound/soc/tegra/tegra_asoc_utils.h |   1 +
 6 files changed, 186 insertions(+), 28 deletions(-)

diff --git a/sound/soc/tegra/tegra30_ahub.c b/sound/soc/tegra/tegra30_ahub.c
index d554d46d08b5..bdd19db4a08b 100644
--- a/sound/soc/tegra/tegra30_ahub.c
+++ b/sound/soc/tegra/tegra30_ahub.c
@@ -100,6 +100,7 @@ int tegra30_ahub_allocate_rx_fifo(enum tegra30_ahub_rxcif *rxcif,
 {
 	int channel;
 	u32 reg, val;
+	struct tegra30_ahub_cif_conf cif_conf;
 
 	channel = find_first_zero_bit(ahub->rx_usage,
 				      TEGRA30_AHUB_CHANNEL_CTRL_COUNT);
@@ -123,15 +124,21 @@ int tegra30_ahub_allocate_rx_fifo(enum tegra30_ahub_rxcif *rxcif,
 	       TEGRA30_AHUB_CHANNEL_CTRL_RX_PACK_16;
 	tegra30_apbif_write(reg, val);
 
+	cif_conf.threshold = 0;
+	cif_conf.audio_channels = 2;
+	cif_conf.client_channels = 2;
+	cif_conf.audio_bits = TEGRA30_AUDIOCIF_BITS_16;
+	cif_conf.client_bits = TEGRA30_AUDIOCIF_BITS_16;
+	cif_conf.expand = 0;
+	cif_conf.stereo_conv = 0;
+	cif_conf.replicate = 0;
+	cif_conf.direction = TEGRA30_AUDIOCIF_DIRECTION_RX;
+	cif_conf.truncate = 0;
+	cif_conf.mono_conv = 0;
+
 	reg = TEGRA30_AHUB_CIF_RX_CTRL +
 	      (channel * TEGRA30_AHUB_CIF_RX_CTRL_STRIDE);
-	val = (0 << TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_SHIFT) |
-	      (1 << TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_SHIFT) |
-	      (1 << TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_SHIFT) |
-	      TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_16 |
-	      TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_16 |
-	      TEGRA30_AUDIOCIF_CTRL_DIRECTION_RX;
-	tegra30_apbif_write(reg, val);
+	ahub->soc_data->set_audio_cif(ahub->regmap_apbif, reg, &cif_conf);
 
 	return 0;
 }
@@ -183,6 +190,7 @@ int tegra30_ahub_allocate_tx_fifo(enum tegra30_ahub_txcif *txcif,
 {
 	int channel;
 	u32 reg, val;
+	struct tegra30_ahub_cif_conf cif_conf;
 
 	channel = find_first_zero_bit(ahub->tx_usage,
 				      TEGRA30_AHUB_CHANNEL_CTRL_COUNT);
@@ -206,15 +214,21 @@ int tegra30_ahub_allocate_tx_fifo(enum tegra30_ahub_txcif *txcif,
 	       TEGRA30_AHUB_CHANNEL_CTRL_TX_PACK_16;
 	tegra30_apbif_write(reg, val);
 
+	cif_conf.threshold = 0;
+	cif_conf.audio_channels = 2;
+	cif_conf.client_channels = 2;
+	cif_conf.audio_bits = TEGRA30_AUDIOCIF_BITS_16;
+	cif_conf.client_bits = TEGRA30_AUDIOCIF_BITS_16;
+	cif_conf.expand = 0;
+	cif_conf.stereo_conv = 0;
+	cif_conf.replicate = 0;
+	cif_conf.direction = TEGRA30_AUDIOCIF_DIRECTION_TX;
+	cif_conf.truncate = 0;
+	cif_conf.mono_conv = 0;
+
 	reg = TEGRA30_AHUB_CIF_TX_CTRL +
 	      (channel * TEGRA30_AHUB_CIF_TX_CTRL_STRIDE);
-	val = (0 << TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_SHIFT) |
-	      (1 << TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_SHIFT) |
-	      (1 << TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_SHIFT) |
-	      TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_16 |
-	      TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_16 |
-	      TEGRA30_AUDIOCIF_CTRL_DIRECTION_TX;
-	tegra30_apbif_write(reg, val);
+	ahub->soc_data->set_audio_cif(ahub->regmap_apbif, reg, &cif_conf);
 
 	return 0;
 }
@@ -437,13 +451,21 @@ static const struct regmap_config tegra30_ahub_ahub_regmap_config = {
 
 static struct tegra30_ahub_soc_data soc_data_tegra30 = {
 	.clk_list_mask = CLK_LIST_MASK_TEGRA30,
+	.set_audio_cif = tegra30_ahub_set_cif,
 };
 
 static struct tegra30_ahub_soc_data soc_data_tegra114 = {
 	.clk_list_mask = CLK_LIST_MASK_TEGRA114,
+	.set_audio_cif = tegra30_ahub_set_cif,
+};
+
+static struct tegra30_ahub_soc_data soc_data_tegra124 = {
+	.clk_list_mask = CLK_LIST_MASK_TEGRA114,
+	.set_audio_cif = tegra124_ahub_set_cif,
 };
 
 static const struct of_device_id tegra30_ahub_of_match[] = {
+	{ .compatible = "nvidia,tegra124-ahub", .data = &soc_data_tegra124 },
 	{ .compatible = "nvidia,tegra114-ahub", .data = &soc_data_tegra114 },
 	{ .compatible = "nvidia,tegra30-ahub",  .data = &soc_data_tegra30 },
 	{},
@@ -497,6 +519,7 @@ static int tegra30_ahub_probe(struct platform_device *pdev)
 	}
 	dev_set_drvdata(&pdev->dev, ahub);
 
+	ahub->soc_data = soc_data;
 	ahub->dev = &pdev->dev;
 
 	ahub->clk_d_audio = clk_get(&pdev->dev, "d_audio");
@@ -669,6 +692,70 @@ static struct platform_driver tegra30_ahub_driver = {
 };
 module_platform_driver(tegra30_ahub_driver);
 
+void tegra30_ahub_set_cif(struct regmap *regmap, unsigned int reg,
+			  struct tegra30_ahub_cif_conf *conf)
+{
+	unsigned int value;
+
+	value = (conf->threshold <<
+			TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_SHIFT) |
+		((conf->audio_channels - 1) <<
+			TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_SHIFT) |
+		((conf->client_channels - 1) <<
+			TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_SHIFT) |
+		(conf->audio_bits <<
+			TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT) |
+		(conf->client_bits <<
+			TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT) |
+		(conf->expand <<
+			TEGRA30_AUDIOCIF_CTRL_EXPAND_SHIFT) |
+		(conf->stereo_conv <<
+			TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_SHIFT) |
+		(conf->replicate <<
+			TEGRA30_AUDIOCIF_CTRL_REPLICATE_SHIFT) |
+		(conf->direction <<
+			TEGRA30_AUDIOCIF_CTRL_DIRECTION_SHIFT) |
+		(conf->truncate <<
+			TEGRA30_AUDIOCIF_CTRL_TRUNCATE_SHIFT) |
+		(conf->mono_conv <<
+			TEGRA30_AUDIOCIF_CTRL_MONO_CONV_SHIFT);
+
+	regmap_write(regmap, reg, value);
+}
+EXPORT_SYMBOL_GPL(tegra30_ahub_set_cif);
+
+void tegra124_ahub_set_cif(struct regmap *regmap, unsigned int reg,
+			   struct tegra30_ahub_cif_conf *conf)
+{
+	unsigned int value;
+
+	value = (conf->threshold <<
+			TEGRA124_AUDIOCIF_CTRL_FIFO_THRESHOLD_SHIFT) |
+		((conf->audio_channels - 1) <<
+			TEGRA124_AUDIOCIF_CTRL_AUDIO_CHANNELS_SHIFT) |
+		((conf->client_channels - 1) <<
+			TEGRA124_AUDIOCIF_CTRL_CLIENT_CHANNELS_SHIFT) |
+		(conf->audio_bits <<
+			TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_SHIFT) |
+		(conf->client_bits <<
+			TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_SHIFT) |
+		(conf->expand <<
+			TEGRA30_AUDIOCIF_CTRL_EXPAND_SHIFT) |
+		(conf->stereo_conv <<
+			TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_SHIFT) |
+		(conf->replicate <<
+			TEGRA30_AUDIOCIF_CTRL_REPLICATE_SHIFT) |
+		(conf->direction <<
+			TEGRA30_AUDIOCIF_CTRL_DIRECTION_SHIFT) |
+		(conf->truncate <<
+			TEGRA30_AUDIOCIF_CTRL_TRUNCATE_SHIFT) |
+		(conf->mono_conv <<
+			TEGRA30_AUDIOCIF_CTRL_MONO_CONV_SHIFT);
+
+	regmap_write(regmap, reg, value);
+}
+EXPORT_SYMBOL_GPL(tegra124_ahub_set_cif);
+
 MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
 MODULE_DESCRIPTION("Tegra30 AHUB driver");
 MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/tegra/tegra30_ahub.h b/sound/soc/tegra/tegra30_ahub.h
index 09766cdc45ca..d67321d90faa 100644
--- a/sound/soc/tegra/tegra30_ahub.h
+++ b/sound/soc/tegra/tegra30_ahub.h
@@ -25,16 +25,30 @@
 #define TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_MASK_US	0xf
 #define TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_MASK	(TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_MASK_US << TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_SHIFT)
 
+#define TEGRA124_AUDIOCIF_CTRL_FIFO_THRESHOLD_SHIFT	24
+#define TEGRA124_AUDIOCIF_CTRL_FIFO_THRESHOLD_MASK_US	0x3f
+#define TEGRA124_AUDIOCIF_CTRL_FIFO_THRESHOLD_MASK	(TEGRA124_AUDIOCIF_CTRL_FIFO_THRESHOLD_MASK_US << TEGRA124_AUDIOCIF_CTRL_FIFO_THRESHOLD_SHIFT)
+
 /* Channel count minus 1 */
 #define TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_SHIFT	24
 #define TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_MASK_US	7
 #define TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_MASK	(TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_MASK_US << TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_SHIFT)
 
+/* Channel count minus 1 */
+#define TEGRA124_AUDIOCIF_CTRL_AUDIO_CHANNELS_SHIFT	20
+#define TEGRA124_AUDIOCIF_CTRL_AUDIO_CHANNELS_MASK_US	0xf
+#define TEGRA124_AUDIOCIF_CTRL_AUDIO_CHANNELS_MASK	(TEGRA124_AUDIOCIF_CTRL_AUDIO_CHANNELS_MASK_US << TEGRA124_AUDIOCIF_CTRL_AUDIO_CHANNELS_SHIFT)
+
 /* Channel count minus 1 */
 #define TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_SHIFT	16
 #define TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_MASK_US	7
 #define TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_MASK	(TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_MASK_US << TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_SHIFT)
 
+/* Channel count minus 1 */
+#define TEGRA124_AUDIOCIF_CTRL_CLIENT_CHANNELS_SHIFT	16
+#define TEGRA124_AUDIOCIF_CTRL_CLIENT_CHANNELS_MASK_US	0xf
+#define TEGRA124_AUDIOCIF_CTRL_CLIENT_CHANNELS_MASK	(TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_MASK_US << TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_SHIFT)
+
 #define TEGRA30_AUDIOCIF_BITS_4				0
 #define TEGRA30_AUDIOCIF_BITS_8				1
 #define TEGRA30_AUDIOCIF_BITS_12			2
@@ -86,7 +100,7 @@
 #define TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_CH1		(TEGRA30_AUDIOCIF_STEREO_CONV_CH1 << TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_SHIFT)
 #define TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_AVG		(TEGRA30_AUDIOCIF_STEREO_CONV_AVG << TEGRA30_AUDIOCIF_CTRL_STEREO_CONV_SHIFT)
 
-#define TEGRA30_AUDIOCIF_CTRL_REPLICATE			3
+#define TEGRA30_AUDIOCIF_CTRL_REPLICATE_SHIFT		3
 
 #define TEGRA30_AUDIOCIF_DIRECTION_TX			0
 #define TEGRA30_AUDIOCIF_DIRECTION_RX			1
@@ -468,8 +482,30 @@ extern int tegra30_ahub_set_rx_cif_source(enum tegra30_ahub_rxcif rxcif,
 					  enum tegra30_ahub_txcif txcif);
 extern int tegra30_ahub_unset_rx_cif_source(enum tegra30_ahub_rxcif rxcif);
 
+struct tegra30_ahub_cif_conf {
+	unsigned int threshold;
+	unsigned int audio_channels;
+	unsigned int client_channels;
+	unsigned int audio_bits;
+	unsigned int client_bits;
+	unsigned int expand;
+	unsigned int stereo_conv;
+	unsigned int replicate;
+	unsigned int direction;
+	unsigned int truncate;
+	unsigned int mono_conv;
+};
+
+void tegra30_ahub_set_cif(struct regmap *regmap, unsigned int reg,
+			  struct tegra30_ahub_cif_conf *conf);
+void tegra124_ahub_set_cif(struct regmap *regmap, unsigned int reg,
+			   struct tegra30_ahub_cif_conf *conf);
+
 struct tegra30_ahub_soc_data {
 	u32 clk_list_mask;
+	void (*set_audio_cif)(struct regmap *regmap,
+			      unsigned int reg,
+			      struct tegra30_ahub_cif_conf *conf);
 	/*
 	 * FIXME: There are many more differences in HW, such as:
 	 * - More APBIF channels.
diff --git a/sound/soc/tegra/tegra30_i2s.c b/sound/soc/tegra/tegra30_i2s.c
index 47565fd04505..5f20b695eba2 100644
--- a/sound/soc/tegra/tegra30_i2s.c
+++ b/sound/soc/tegra/tegra30_i2s.c
@@ -30,6 +30,7 @@
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/regmap.h>
@@ -179,6 +180,7 @@ static int tegra30_i2s_hw_params(struct snd_pcm_substream *substream,
 	struct tegra30_i2s *i2s = snd_soc_dai_get_drvdata(dai);
 	unsigned int mask, val, reg;
 	int ret, sample_size, srate, i2sclock, bitcnt;
+	struct tegra30_ahub_cif_conf cif_conf;
 
 	if (params_channels(params) != 2)
 		return -EINVAL;
@@ -217,21 +219,26 @@ static int tegra30_i2s_hw_params(struct snd_pcm_substream *substream,
 
 	regmap_write(i2s->regmap, TEGRA30_I2S_TIMING, val);
 
-	val = (0 << TEGRA30_AUDIOCIF_CTRL_FIFO_THRESHOLD_SHIFT) |
-	      (1 << TEGRA30_AUDIOCIF_CTRL_AUDIO_CHANNELS_SHIFT) |
-	      (1 << TEGRA30_AUDIOCIF_CTRL_CLIENT_CHANNELS_SHIFT) |
-	      TEGRA30_AUDIOCIF_CTRL_AUDIO_BITS_16 |
-	      TEGRA30_AUDIOCIF_CTRL_CLIENT_BITS_16;
+	cif_conf.threshold = 0;
+	cif_conf.audio_channels = 2;
+	cif_conf.client_channels = 2;
+	cif_conf.audio_bits = TEGRA30_AUDIOCIF_BITS_16;
+	cif_conf.client_bits = TEGRA30_AUDIOCIF_BITS_16;
+	cif_conf.expand = 0;
+	cif_conf.stereo_conv = 0;
+	cif_conf.replicate = 0;
+	cif_conf.truncate = 0;
+	cif_conf.mono_conv = 0;
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		val |= TEGRA30_AUDIOCIF_CTRL_DIRECTION_RX;
+		cif_conf.direction = TEGRA30_AUDIOCIF_DIRECTION_RX;
 		reg = TEGRA30_I2S_CIF_RX_CTRL;
 	} else {
-		val |= TEGRA30_AUDIOCIF_CTRL_DIRECTION_TX;
+		cif_conf.direction = TEGRA30_AUDIOCIF_DIRECTION_TX;
 		reg = TEGRA30_I2S_CIF_TX_CTRL;
 	}
 
-	regmap_write(i2s->regmap, reg, val);
+	i2s->soc_data->set_audio_cif(i2s->regmap, reg, &cif_conf);
 
 	val = (1 << TEGRA30_I2S_OFFSET_RX_DATA_OFFSET_SHIFT) |
 	      (1 << TEGRA30_I2S_OFFSET_TX_DATA_OFFSET_SHIFT);
@@ -396,9 +403,24 @@ static const struct regmap_config tegra30_i2s_regmap_config = {
 	.cache_type = REGCACHE_RBTREE,
 };
 
+static const struct tegra30_i2s_soc_data tegra30_i2s_config = {
+	.set_audio_cif = tegra30_ahub_set_cif,
+};
+
+static const struct tegra30_i2s_soc_data tegra124_i2s_config = {
+	.set_audio_cif = tegra124_ahub_set_cif,
+};
+
+static const struct of_device_id tegra30_i2s_of_match[] = {
+	{ .compatible = "nvidia,tegra124-i2s", .data = &tegra124_i2s_config },
+	{ .compatible = "nvidia,tegra30-i2s", .data = &tegra30_i2s_config },
+	{},
+};
+
 static int tegra30_i2s_platform_probe(struct platform_device *pdev)
 {
 	struct tegra30_i2s *i2s;
+	const struct of_device_id *match;
 	u32 cif_ids[2];
 	struct resource *mem, *memregion;
 	void __iomem *regs;
@@ -412,6 +434,14 @@ static int tegra30_i2s_platform_probe(struct platform_device *pdev)
 	}
 	dev_set_drvdata(&pdev->dev, i2s);
 
+	match = of_match_device(tegra30_i2s_of_match, &pdev->dev);
+	if (!match) {
+		dev_err(&pdev->dev, "Error: No device match found\n");
+		ret = -ENODEV;
+		goto err;
+	}
+	i2s->soc_data = (struct tegra30_i2s_soc_data *)match->data;
+
 	i2s->dai = tegra30_i2s_dai_template;
 	i2s->dai.name = dev_name(&pdev->dev);
 
@@ -539,11 +569,6 @@ static int tegra30_i2s_resume(struct device *dev)
 }
 #endif
 
-static const struct of_device_id tegra30_i2s_of_match[] = {
-	{ .compatible = "nvidia,tegra30-i2s", },
-	{},
-};
-
 static const struct dev_pm_ops tegra30_i2s_pm_ops = {
 	SET_RUNTIME_PM_OPS(tegra30_i2s_runtime_suspend,
 			   tegra30_i2s_runtime_resume, NULL)
diff --git a/sound/soc/tegra/tegra30_i2s.h b/sound/soc/tegra/tegra30_i2s.h
index bea23afe3b9f..4d0b0a30dbfb 100644
--- a/sound/soc/tegra/tegra30_i2s.h
+++ b/sound/soc/tegra/tegra30_i2s.h
@@ -225,7 +225,14 @@
 #define TEGRA30_I2S_LCOEF_COEF_MASK_US			0xffff
 #define TEGRA30_I2S_LCOEF_COEF_MASK			(TEGRA30_I2S_LCOEF_COEF_MASK_US << TEGRA30_I2S_LCOEF_COEF_SHIFT)
 
+struct tegra30_i2s_soc_data {
+	void (*set_audio_cif)(struct regmap *regmap,
+			      unsigned int reg,
+			      struct tegra30_ahub_cif_conf *conf);
+};
+
 struct tegra30_i2s {
+	const struct tegra30_i2s_soc_data *soc_data;
 	struct snd_soc_dai_driver dai;
 	int cif_id;
 	struct clk *clk_i2s;
diff --git a/sound/soc/tegra/tegra_asoc_utils.c b/sound/soc/tegra/tegra_asoc_utils.c
index d173880f290d..1be311c51a18 100644
--- a/sound/soc/tegra/tegra_asoc_utils.c
+++ b/sound/soc/tegra/tegra_asoc_utils.c
@@ -182,6 +182,8 @@ int tegra_asoc_utils_init(struct tegra_asoc_utils_data *data,
 		data->soc = TEGRA_ASOC_UTILS_SOC_TEGRA30;
 	else if (of_machine_is_compatible("nvidia,tegra114"))
 		data->soc = TEGRA_ASOC_UTILS_SOC_TEGRA114;
+	else if (of_machine_is_compatible("nvidia,tegra124"))
+		data->soc = TEGRA_ASOC_UTILS_SOC_TEGRA124;
 	else {
 		dev_err(data->dev, "SoC unknown to Tegra ASoC utils\n");
 		return -EINVAL;
diff --git a/sound/soc/tegra/tegra_asoc_utils.h b/sound/soc/tegra/tegra_asoc_utils.h
index 19fdcafed32f..9577121ce971 100644
--- a/sound/soc/tegra/tegra_asoc_utils.h
+++ b/sound/soc/tegra/tegra_asoc_utils.h
@@ -30,6 +30,7 @@ enum tegra_asoc_utils_soc {
 	TEGRA_ASOC_UTILS_SOC_TEGRA20,
 	TEGRA_ASOC_UTILS_SOC_TEGRA30,
 	TEGRA_ASOC_UTILS_SOC_TEGRA114,
+	TEGRA_ASOC_UTILS_SOC_TEGRA124,
 };
 
 struct tegra_asoc_utils_data {
-- 
cgit 


From 6d56a410aecb0221ce7027ff7d738451b4ab18b7 Mon Sep 17 00:00:00 2001
From: Paul Gortmaker <paul.gortmaker@windriver.com>
Date: Tue, 13 Aug 2013 11:06:50 -0400
Subject: NUMA: fix typos in Kconfig help text

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 init/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/init/Kconfig b/init/Kconfig
index 0a2c4bcf179e..7a7acd9a54f5 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -844,7 +844,7 @@ config NUMA_BALANCING_DEFAULT_ENABLED
 	default y
 	depends on NUMA_BALANCING
 	help
-	  If set, autonumic NUMA balancing will be enabled if running on a NUMA
+	  If set, automatic NUMA balancing will be enabled if running on a NUMA
 	  machine.
 
 config NUMA_BALANCING
@@ -855,7 +855,7 @@ config NUMA_BALANCING
 	help
 	  This option adds support for automatic NUMA aware memory/task placement.
 	  The mechanism is quite primitive and is based on migrating memory when
-	  it is references to the node the task is running on.
+	  it has references to the node the task is running on.
 
 	  This system will be inactive on UMA systems.
 
-- 
cgit 


From 43c831468b3d26dbe8f2e061ccaf1abaf9cc1b8b Mon Sep 17 00:00:00 2001
From: Nanno Langstraat <langstr@gmail.com>
Date: Mon, 14 Oct 2013 16:07:15 +0200
Subject: HID: apple: option to swap the 'Option' ("Alt") and 'Command'
 ("Flag") keys.

Use case: people who use both Apple and PC keyboards regularly, and desire to
keep&use their PC muscle memory.

A particular use case: an Apple compact external keyboard connected to a PC
laptop. (This use case can't be covered well by X.org key remappings etc.)

Signed-off-by: Nanno Langstraat <langstr@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-apple.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c
index 881cf7b4f9a4..3b219b9553fb 100644
--- a/drivers/hid/hid-apple.c
+++ b/drivers/hid/hid-apple.c
@@ -46,6 +46,12 @@ module_param(iso_layout, uint, 0644);
 MODULE_PARM_DESC(iso_layout, "Enable/Disable hardcoded ISO-layout of the keyboard. "
 		"(0 = disabled, [1] = enabled)");
 
+static unsigned int swap_opt_cmd = 0;
+module_param(swap_opt_cmd, uint, 0644);
+MODULE_PARM_DESC(swap_opt_cmd, "Swap the Option (\"Alt\") and Command (\"Flag\") keys. "
+		"(For people who want to keep Windows PC keyboard muscle memory. "
+		"[0] = as-is, Mac layout. 1 = swapped, Windows layout.)");
+
 struct apple_sc {
 	unsigned long quirks;
 	unsigned int fn_on;
@@ -150,6 +156,14 @@ static const struct apple_key_translation apple_iso_keyboard[] = {
 	{ }
 };
 
+static const struct apple_key_translation swapped_option_cmd_keys[] = {
+	{ KEY_LEFTALT,	KEY_LEFTMETA },
+	{ KEY_LEFTMETA,	KEY_LEFTALT },
+	{ KEY_RIGHTALT,	KEY_RIGHTMETA },
+	{ KEY_RIGHTMETA,KEY_RIGHTALT },
+	{ }
+};
+
 static const struct apple_key_translation *apple_find_translation(
 		const struct apple_key_translation *table, u16 from)
 {
@@ -242,6 +256,14 @@ static int hidinput_apple_event(struct hid_device *hid, struct input_dev *input,
 		}
 	}
 
+	if (swap_opt_cmd) {
+		trans = apple_find_translation(swapped_option_cmd_keys, usage->code);
+		if (trans) {
+			input_event(input, usage->type, trans->to, value);
+			return 1;
+		}
+	}
+
 	return 0;
 }
 
-- 
cgit 


From a94c79bdc972f7b3d66756043edbd6d04e8486d6 Mon Sep 17 00:00:00 2001
From: Jiri Kosina <jkosina@suse.cz>
Date: Mon, 14 Oct 2013 16:07:42 +0200
Subject: HID: apple: swap_opt_cmd is already zero-initialized

Global static variable is already zero-initialized.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-apple.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c
index 3b219b9553fb..497558127bb3 100644
--- a/drivers/hid/hid-apple.c
+++ b/drivers/hid/hid-apple.c
@@ -46,7 +46,7 @@ module_param(iso_layout, uint, 0644);
 MODULE_PARM_DESC(iso_layout, "Enable/Disable hardcoded ISO-layout of the keyboard. "
 		"(0 = disabled, [1] = enabled)");
 
-static unsigned int swap_opt_cmd = 0;
+static unsigned int swap_opt_cmd;
 module_param(swap_opt_cmd, uint, 0644);
 MODULE_PARM_DESC(swap_opt_cmd, "Swap the Option (\"Alt\") and Command (\"Flag\") keys. "
 		"(For people who want to keep Windows PC keyboard muscle memory. "
-- 
cgit 


From e33fabd365596178e72f62bb4b89f0aaad0509ad Mon Sep 17 00:00:00 2001
From: Anthony Olech <anthony.olech.opensource@diasemi.com>
Date: Fri, 11 Oct 2013 15:31:11 +0100
Subject: regmap: new API regmap_multi_reg_write() definition

New API regmap_multi_reg_write() is defined that allows a set of reg,val
pairs to be written to a I2C client device as one block transfer from the
point of view of a single I2C master system.

A simple demonstration implementation is included that just splits the
block write request into a sequence of single register writes.

The implementation will be modified later to support those I2C clients
that implement the alternative non-standard MULTIWRITE block write mode
so to achieve a single I2C transfer that will be atomic even in multiple
I2C master systems.

Signed-off-by: Anthony Olech <anthony.olech.opensource@diasemi.com>
Signed-off-by: David Dajun Chen <david.chen@diasemi.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/base/regmap/regmap.c | 41 +++++++++++++++++++++++++++++++++++++++++
 include/linux/regmap.h       |  2 ++
 2 files changed, 43 insertions(+)

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index 7d689a15c500..c42ad69e527f 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1439,6 +1439,47 @@ out:
 }
 EXPORT_SYMBOL_GPL(regmap_bulk_write);
 
+/*
+ * regmap_multi_reg_write(): Write multiple registers to the device
+ *
+ * where the set of register are supplied in any order
+ *
+ * @map: Register map to write to
+ * @regs: Array of structures containing register,value to be written
+ * @num_regs: Number of registers to write
+ *
+ * This function is intended to be used for writing a large block of data
+ * atomically to the device in single transfer for those I2C client devices
+ * that implement this alternative block write mode.
+ *
+ * A value of zero will be returned on success, a negative errno will
+ * be returned in error cases.
+ */
+int regmap_multi_reg_write(struct regmap *map, struct reg_default *regs,
+				int num_regs)
+{
+	int ret = 0, i;
+
+	for (i = 0; i < num_regs; i++) {
+		int reg = regs[i].reg;
+		if (reg % map->reg_stride)
+			return -EINVAL;
+	}
+
+	map->lock(map->lock_arg);
+
+	for (i = 0; i < num_regs; i++) {
+		ret = _regmap_write(map, regs[i].reg, regs[i].def);
+		if (ret != 0)
+			goto out;
+	}
+out:
+	map->unlock(map->lock_arg);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(regmap_multi_reg_write);
+
 /**
  * regmap_raw_write_async(): Write raw values to one or more registers
  *                           asynchronously
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index a10380bfbeac..4b933a31f84f 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -378,6 +378,8 @@ int regmap_raw_write(struct regmap *map, unsigned int reg,
 		     const void *val, size_t val_len);
 int regmap_bulk_write(struct regmap *map, unsigned int reg, const void *val,
 			size_t val_count);
+int regmap_multi_reg_write(struct regmap *map, struct reg_default *regs,
+			int num_regs);
 int regmap_raw_write_async(struct regmap *map, unsigned int reg,
 			   const void *val, size_t val_len);
 int regmap_read(struct regmap *map, unsigned int reg, unsigned int *val);
-- 
cgit 


From 96518518cc417bb0a8c80b9fb736202e28acdf96 Mon Sep 17 00:00:00 2001
From: Patrick McHardy <kaber@trash.net>
Date: Mon, 14 Oct 2013 11:00:02 +0200
Subject: netfilter: add nftables

This patch adds nftables which is the intended successor of iptables.
This packet filtering framework reuses the existing netfilter hooks,
the connection tracking system, the NAT subsystem, the transparent
proxying engine, the logging infrastructure and the userspace packet
queueing facilities.

In a nutshell, nftables provides a pseudo-state machine with 4 general
purpose registers of 128 bits and 1 specific purpose register to store
verdicts. This pseudo-machine comes with an extensible instruction set,
a.k.a. "expressions" in the nftables jargon. The expressions included
in this patch provide the basic functionality, they are:

* bitwise: to perform bitwise operations.
* byteorder: to change from host/network endianess.
* cmp: to compare data with the content of the registers.
* counter: to enable counters on rules.
* ct: to store conntrack keys into register.
* exthdr: to match IPv6 extension headers.
* immediate: to load data into registers.
* limit: to limit matching based on packet rate.
* log: to log packets.
* meta: to match metainformation that usually comes with the skbuff.
* nat: to perform Network Address Translation.
* payload: to fetch data from the packet payload and store it into
  registers.
* reject (IPv4 only): to explicitly close connection, eg. TCP RST.

Using this instruction-set, the userspace utility 'nft' can transform
the rules expressed in human-readable text representation (using a
new syntax, inspired by tcpdump) to nftables bytecode.

nftables also inherits the table, chain and rule objects from
iptables, but in a more configurable way, and it also includes the
original datatype-agnostic set infrastructure with mapping support.
This set infrastructure is enhanced in the follow up patch (netfilter:
nf_tables: add netlink set API).

This patch includes the following components:

* the netlink API: net/netfilter/nf_tables_api.c and
  include/uapi/netfilter/nf_tables.h
* the packet filter core: net/netfilter/nf_tables_core.c
* the expressions (described above): net/netfilter/nft_*.c
* the filter tables: arp, IPv4, IPv6 and bridge:
  net/ipv4/netfilter/nf_tables_ipv4.c
  net/ipv6/netfilter/nf_tables_ipv6.c
  net/ipv4/netfilter/nf_tables_arp.c
  net/bridge/netfilter/nf_tables_bridge.c
* the NAT table (IPv4 only):
  net/ipv4/netfilter/nf_table_nat_ipv4.c
* the route table (similar to mangle):
  net/ipv4/netfilter/nf_table_route_ipv4.c
  net/ipv6/netfilter/nf_table_route_ipv6.c
* internal definitions under:
  include/net/netfilter/nf_tables.h
  include/net/netfilter/nf_tables_core.h
* It also includes an skeleton expression:
  net/netfilter/nft_expr_template.c
  and the preliminary implementation of the meta target
  net/netfilter/nft_meta_target.c

It also includes a change in struct nf_hook_ops to add a new
pointer to store private data to the hook, that is used to store
the rule list per chain.

This patch is based on the patch from Patrick McHardy, plus merged
accumulated cleanups, fixes and small enhancements to the nftables
code that has been done since 2009, which are:

From Patrick McHardy:
* nf_tables: adjust netlink handler function signatures
* nf_tables: only retry table lookup after successful table module load
* nf_tables: fix event notification echo and avoid unnecessary messages
* nft_ct: add l3proto support
* nf_tables: pass expression context to nft_validate_data_load()
* nf_tables: remove redundant definition
* nft_ct: fix maxattr initialization
* nf_tables: fix invalid event type in nf_tables_getrule()
* nf_tables: simplify nft_data_init() usage
* nf_tables: build in more core modules
* nf_tables: fix double lookup expression unregistation
* nf_tables: move expression initialization to nf_tables_core.c
* nf_tables: build in payload module
* nf_tables: use NFPROTO constants
* nf_tables: rename pid variables to portid
* nf_tables: save 48 bits per rule
* nf_tables: introduce chain rename
* nf_tables: check for duplicate names on chain rename
* nf_tables: remove ability to specify handles for new rules
* nf_tables: return error for rule change request
* nf_tables: return error for NLM_F_REPLACE without rule handle
* nf_tables: include NLM_F_APPEND/NLM_F_REPLACE flags in rule notification
* nf_tables: fix NLM_F_MULTI usage in netlink notifications
* nf_tables: include NLM_F_APPEND in rule dumps

From Pablo Neira Ayuso:
* nf_tables: fix stack overflow in nf_tables_newrule
* nf_tables: nft_ct: fix compilation warning
* nf_tables: nft_ct: fix crash with invalid packets
* nft_log: group and qthreshold are 2^16
* nf_tables: nft_meta: fix socket uid,gid handling
* nft_counter: allow to restore counters
* nf_tables: fix module autoload
* nf_tables: allow to remove all rules placed in one chain
* nf_tables: use 64-bits rule handle instead of 16-bits
* nf_tables: fix chain after rule deletion
* nf_tables: improve deletion performance
* nf_tables: add missing code in route chain type
* nf_tables: rise maximum number of expressions from 12 to 128
* nf_tables: don't delete table if in use
* nf_tables: fix basechain release

From Tomasz Bursztyka:
* nf_tables: Add support for changing users chain's name
* nf_tables: Change chain's name to be fixed sized
* nf_tables: Add support for replacing a rule by another one
* nf_tables: Update uapi nftables netlink header documentation

From Florian Westphal:
* nft_log: group is u16, snaplen u32

From Phil Oester:
* nf_tables: operational limit match

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/linux/netfilter.h                          |   11 +-
 include/net/netfilter/nf_tables.h                  |  301 ++++
 include/net/netfilter/nf_tables_core.h             |   25 +
 include/uapi/linux/netfilter/Kbuild                |    1 +
 include/uapi/linux/netfilter/nf_conntrack_common.h |    4 +
 include/uapi/linux/netfilter/nf_tables.h           |  582 +++++++
 include/uapi/linux/netfilter/nfnetlink.h           |    5 +-
 net/bridge/netfilter/Kconfig                       |    3 +
 net/bridge/netfilter/Makefile                      |    2 +
 net/bridge/netfilter/nf_tables_bridge.c            |   37 +
 net/ipv4/netfilter/Kconfig                         |   16 +
 net/ipv4/netfilter/Makefile                        |    5 +
 net/ipv4/netfilter/nf_table_nat_ipv4.c             |  409 +++++
 net/ipv4/netfilter/nf_table_route_ipv4.c           |   97 ++
 net/ipv4/netfilter/nf_tables_ipv4.c                |   59 +
 net/ipv4/netfilter/nft_reject_ipv4.c               |  117 ++
 net/ipv6/netfilter/Kconfig                         |    8 +
 net/ipv6/netfilter/Makefile                        |    4 +
 net/ipv6/netfilter/nf_table_route_ipv6.c           |   93 ++
 net/ipv6/netfilter/nf_tables_ipv6.c                |   57 +
 net/netfilter/Kconfig                              |   37 +
 net/netfilter/Makefile                             |   16 +
 net/netfilter/nf_tables_api.c                      | 1760 ++++++++++++++++++++
 net/netfilter/nf_tables_core.c                     |  152 ++
 net/netfilter/nft_bitwise.c                        |  140 ++
 net/netfilter/nft_byteorder.c                      |  167 ++
 net/netfilter/nft_cmp.c                            |  146 ++
 net/netfilter/nft_counter.c                        |  107 ++
 net/netfilter/nft_ct.c                             |  252 +++
 net/netfilter/nft_expr_template.c                  |   88 +
 net/netfilter/nft_exthdr.c                         |  127 ++
 net/netfilter/nft_hash.c                           |  348 ++++
 net/netfilter/nft_immediate.c                      |  113 ++
 net/netfilter/nft_limit.c                          |  113 ++
 net/netfilter/nft_log.c                            |  140 ++
 net/netfilter/nft_meta.c                           |  222 +++
 net/netfilter/nft_meta_target.c                    |  117 ++
 net/netfilter/nft_payload.c                        |  137 ++
 net/netfilter/nft_set.c                            |  381 +++++
 39 files changed, 6393 insertions(+), 6 deletions(-)
 create mode 100644 include/net/netfilter/nf_tables.h
 create mode 100644 include/net/netfilter/nf_tables_core.h
 create mode 100644 include/uapi/linux/netfilter/nf_tables.h
 create mode 100644 net/bridge/netfilter/nf_tables_bridge.c
 create mode 100644 net/ipv4/netfilter/nf_table_nat_ipv4.c
 create mode 100644 net/ipv4/netfilter/nf_table_route_ipv4.c
 create mode 100644 net/ipv4/netfilter/nf_tables_ipv4.c
 create mode 100644 net/ipv4/netfilter/nft_reject_ipv4.c
 create mode 100644 net/ipv6/netfilter/nf_table_route_ipv6.c
 create mode 100644 net/ipv6/netfilter/nf_tables_ipv6.c
 create mode 100644 net/netfilter/nf_tables_api.c
 create mode 100644 net/netfilter/nf_tables_core.c
 create mode 100644 net/netfilter/nft_bitwise.c
 create mode 100644 net/netfilter/nft_byteorder.c
 create mode 100644 net/netfilter/nft_cmp.c
 create mode 100644 net/netfilter/nft_counter.c
 create mode 100644 net/netfilter/nft_ct.c
 create mode 100644 net/netfilter/nft_expr_template.c
 create mode 100644 net/netfilter/nft_exthdr.c
 create mode 100644 net/netfilter/nft_hash.c
 create mode 100644 net/netfilter/nft_immediate.c
 create mode 100644 net/netfilter/nft_limit.c
 create mode 100644 net/netfilter/nft_log.c
 create mode 100644 net/netfilter/nft_meta.c
 create mode 100644 net/netfilter/nft_meta_target.c
 create mode 100644 net/netfilter/nft_payload.c
 create mode 100644 net/netfilter/nft_set.c

diff --git a/include/linux/netfilter.h b/include/linux/netfilter.h
index fef7e67f7101..2077489f9887 100644
--- a/include/linux/netfilter.h
+++ b/include/linux/netfilter.h
@@ -53,12 +53,13 @@ struct nf_hook_ops {
 	struct list_head list;
 
 	/* User fills in from here down. */
-	nf_hookfn *hook;
-	struct module *owner;
-	u_int8_t pf;
-	unsigned int hooknum;
+	nf_hookfn	*hook;
+	struct module	*owner;
+	void		*priv;
+	u_int8_t	pf;
+	unsigned int	hooknum;
 	/* Hooks are ordered in ascending priority. */
-	int priority;
+	int		priority;
 };
 
 struct nf_sockopt_ops {
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
new file mode 100644
index 000000000000..d26dfa345f49
--- /dev/null
+++ b/include/net/netfilter/nf_tables.h
@@ -0,0 +1,301 @@
+#ifndef _NET_NF_TABLES_H
+#define _NET_NF_TABLES_H
+
+#include <linux/list.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netlink.h>
+
+struct nft_pktinfo {
+	struct sk_buff			*skb;
+	const struct net_device		*in;
+	const struct net_device		*out;
+	u8				hooknum;
+	u8				nhoff;
+	u8				thoff;
+};
+
+struct nft_data {
+	union {
+		u32				data[4];
+		struct {
+			u32			verdict;
+			struct nft_chain	*chain;
+		};
+	};
+} __attribute__((aligned(__alignof__(u64))));
+
+static inline int nft_data_cmp(const struct nft_data *d1,
+			       const struct nft_data *d2,
+			       unsigned int len)
+{
+	return memcmp(d1->data, d2->data, len);
+}
+
+static inline void nft_data_copy(struct nft_data *dst,
+				 const struct nft_data *src)
+{
+	BUILD_BUG_ON(__alignof__(*dst) != __alignof__(u64));
+	*(u64 *)&dst->data[0] = *(u64 *)&src->data[0];
+	*(u64 *)&dst->data[2] = *(u64 *)&src->data[2];
+}
+
+static inline void nft_data_debug(const struct nft_data *data)
+{
+	pr_debug("data[0]=%x data[1]=%x data[2]=%x data[3]=%x\n",
+		 data->data[0], data->data[1],
+		 data->data[2], data->data[3]);
+}
+
+/**
+ *	struct nft_ctx - nf_tables rule context
+ *
+ * 	@afi: address family info
+ * 	@table: the table the chain is contained in
+ * 	@chain: the chain the rule is contained in
+ */
+struct nft_ctx {
+	const struct nft_af_info	*afi;
+	const struct nft_table		*table;
+	const struct nft_chain		*chain;
+};
+
+enum nft_data_types {
+	NFT_DATA_VALUE,
+	NFT_DATA_VERDICT,
+};
+
+struct nft_data_desc {
+	enum nft_data_types		type;
+	unsigned int			len;
+};
+
+extern int nft_data_init(const struct nft_ctx *ctx, struct nft_data *data,
+			 struct nft_data_desc *desc, const struct nlattr *nla);
+extern void nft_data_uninit(const struct nft_data *data,
+			    enum nft_data_types type);
+extern int nft_data_dump(struct sk_buff *skb, int attr,
+			 const struct nft_data *data,
+			 enum nft_data_types type, unsigned int len);
+
+static inline enum nft_data_types nft_dreg_to_type(enum nft_registers reg)
+{
+	return reg == NFT_REG_VERDICT ? NFT_DATA_VERDICT : NFT_DATA_VALUE;
+}
+
+extern int nft_validate_input_register(enum nft_registers reg);
+extern int nft_validate_output_register(enum nft_registers reg);
+extern int nft_validate_data_load(const struct nft_ctx *ctx,
+				  enum nft_registers reg,
+				  const struct nft_data *data,
+				  enum nft_data_types type);
+
+/**
+ *	struct nft_expr_ops - nf_tables expression operations
+ *
+ *	@eval: Expression evaluation function
+ *	@init: initialization function
+ *	@destroy: destruction function
+ *	@dump: function to dump parameters
+ *	@list: used internally
+ *	@name: Identifier
+ *	@owner: module reference
+ *	@policy: netlink attribute policy
+ *	@maxattr: highest netlink attribute number
+ *	@size: full expression size, including private data size
+ */
+struct nft_expr;
+struct nft_expr_ops {
+	void				(*eval)(const struct nft_expr *expr,
+						struct nft_data data[NFT_REG_MAX + 1],
+						const struct nft_pktinfo *pkt);
+	int				(*init)(const struct nft_ctx *ctx,
+						const struct nft_expr *expr,
+						const struct nlattr * const tb[]);
+	void				(*destroy)(const struct nft_expr *expr);
+	int				(*dump)(struct sk_buff *skb,
+						const struct nft_expr *expr);
+
+	struct list_head		list;
+	const char			*name;
+	struct module			*owner;
+	const struct nla_policy		*policy;
+	unsigned int			maxattr;
+	unsigned int			size;
+};
+
+#define NFT_EXPR_SIZE(size)		(sizeof(struct nft_expr) + \
+					 ALIGN(size, __alignof__(struct nft_expr)))
+
+/**
+ *	struct nft_expr - nf_tables expression
+ *
+ *	@ops: expression ops
+ *	@data: expression private data
+ */
+struct nft_expr {
+	const struct nft_expr_ops	*ops;
+	unsigned char			data[];
+};
+
+static inline void *nft_expr_priv(const struct nft_expr *expr)
+{
+	return (void *)expr->data;
+}
+
+/**
+ *	struct nft_rule - nf_tables rule
+ *
+ *	@list: used internally
+ *	@rcu_head: used internally for rcu
+ *	@handle: rule handle
+ *	@dlen: length of expression data
+ *	@data: expression data
+ */
+struct nft_rule {
+	struct list_head		list;
+	struct rcu_head			rcu_head;
+	u64				handle:48,
+					dlen:16;
+	unsigned char			data[]
+		__attribute__((aligned(__alignof__(struct nft_expr))));
+};
+
+static inline struct nft_expr *nft_expr_first(const struct nft_rule *rule)
+{
+	return (struct nft_expr *)&rule->data[0];
+}
+
+static inline struct nft_expr *nft_expr_next(const struct nft_expr *expr)
+{
+	return ((void *)expr) + expr->ops->size;
+}
+
+static inline struct nft_expr *nft_expr_last(const struct nft_rule *rule)
+{
+	return (struct nft_expr *)&rule->data[rule->dlen];
+}
+
+/*
+ * The last pointer isn't really necessary, but the compiler isn't able to
+ * determine that the result of nft_expr_last() is always the same since it
+ * can't assume that the dlen value wasn't changed within calls in the loop.
+ */
+#define nft_rule_for_each_expr(expr, last, rule) \
+	for ((expr) = nft_expr_first(rule), (last) = nft_expr_last(rule); \
+	     (expr) != (last); \
+	     (expr) = nft_expr_next(expr))
+
+enum nft_chain_flags {
+	NFT_BASE_CHAIN			= 0x1,
+	NFT_CHAIN_BUILTIN		= 0x2,
+};
+
+/**
+ *	struct nft_chain - nf_tables chain
+ *
+ *	@rules: list of rules in the chain
+ *	@list: used internally
+ *	@rcu_head: used internally
+ *	@handle: chain handle
+ *	@flags: bitmask of enum nft_chain_flags
+ *	@use: number of jump references to this chain
+ *	@level: length of longest path to this chain
+ *	@name: name of the chain
+ */
+struct nft_chain {
+	struct list_head		rules;
+	struct list_head		list;
+	struct rcu_head			rcu_head;
+	u64				handle;
+	u8				flags;
+	u16				use;
+	u16				level;
+	char				name[NFT_CHAIN_MAXNAMELEN];
+};
+
+/**
+ *	struct nft_base_chain - nf_tables base chain
+ *
+ *	@ops: netfilter hook ops
+ *	@chain: the chain
+ */
+struct nft_base_chain {
+	struct nf_hook_ops		ops;
+	struct nft_chain		chain;
+};
+
+static inline struct nft_base_chain *nft_base_chain(const struct nft_chain *chain)
+{
+	return container_of(chain, struct nft_base_chain, chain);
+}
+
+extern unsigned int nft_do_chain(const struct nf_hook_ops *ops,
+				 struct sk_buff *skb,
+				 const struct net_device *in,
+				 const struct net_device *out,
+				 int (*okfn)(struct sk_buff *));
+
+enum nft_table_flags {
+	NFT_TABLE_BUILTIN		= 0x1,
+};
+
+/**
+ *	struct nft_table - nf_tables table
+ *
+ *	@list: used internally
+ *	@chains: chains in the table
+ *	@sets: sets in the table
+ *	@hgenerator: handle generator state
+ *	@use: number of chain references to this table
+ *	@flags: table flag (see enum nft_table_flags)
+ *	@name: name of the table
+ */
+struct nft_table {
+	struct list_head		list;
+	struct list_head		chains;
+	struct list_head		sets;
+	u64				hgenerator;
+	u32				use;
+	u16				flags;
+	char				name[];
+};
+
+/**
+ *	struct nft_af_info - nf_tables address family info
+ *
+ *	@list: used internally
+ *	@family: address family
+ *	@nhooks: number of hooks in this family
+ *	@owner: module owner
+ *	@tables: used internally
+ *	@hooks: hookfn overrides for packet validation
+ */
+struct nft_af_info {
+	struct list_head		list;
+	int				family;
+	unsigned int			nhooks;
+	struct module			*owner;
+	struct list_head		tables;
+	nf_hookfn			*hooks[NF_MAX_HOOKS];
+};
+
+extern int nft_register_afinfo(struct nft_af_info *);
+extern void nft_unregister_afinfo(struct nft_af_info *);
+
+extern int nft_register_table(struct nft_table *, int family);
+extern void nft_unregister_table(struct nft_table *, int family);
+
+extern int nft_register_expr(struct nft_expr_ops *);
+extern void nft_unregister_expr(struct nft_expr_ops *);
+
+#define MODULE_ALIAS_NFT_FAMILY(family)	\
+	MODULE_ALIAS("nft-afinfo-" __stringify(family))
+
+#define MODULE_ALIAS_NFT_TABLE(family, name) \
+	MODULE_ALIAS("nft-table-" __stringify(family) "-" name)
+
+#define MODULE_ALIAS_NFT_EXPR(name) \
+	MODULE_ALIAS("nft-expr-" name)
+
+#endif /* _NET_NF_TABLES_H */
diff --git a/include/net/netfilter/nf_tables_core.h b/include/net/netfilter/nf_tables_core.h
new file mode 100644
index 000000000000..283396c916e0
--- /dev/null
+++ b/include/net/netfilter/nf_tables_core.h
@@ -0,0 +1,25 @@
+#ifndef _NET_NF_TABLES_CORE_H
+#define _NET_NF_TABLES_CORE_H
+
+extern int nf_tables_core_module_init(void);
+extern void nf_tables_core_module_exit(void);
+
+extern int nft_immediate_module_init(void);
+extern void nft_immediate_module_exit(void);
+
+extern int nft_cmp_module_init(void);
+extern void nft_cmp_module_exit(void);
+
+extern int nft_lookup_module_init(void);
+extern void nft_lookup_module_exit(void);
+
+extern int nft_bitwise_module_init(void);
+extern void nft_bitwise_module_exit(void);
+
+extern int nft_byteorder_module_init(void);
+extern void nft_byteorder_module_exit(void);
+
+extern int nft_payload_module_init(void);
+extern void nft_payload_module_exit(void);
+
+#endif /* _NET_NF_TABLES_CORE_H */
diff --git a/include/uapi/linux/netfilter/Kbuild b/include/uapi/linux/netfilter/Kbuild
index 174915420d3f..6ce0b7f566a7 100644
--- a/include/uapi/linux/netfilter/Kbuild
+++ b/include/uapi/linux/netfilter/Kbuild
@@ -5,6 +5,7 @@ header-y += nf_conntrack_ftp.h
 header-y += nf_conntrack_sctp.h
 header-y += nf_conntrack_tcp.h
 header-y += nf_conntrack_tuple_common.h
+header-y += nf_tables.h
 header-y += nf_nat.h
 header-y += nfnetlink.h
 header-y += nfnetlink_acct.h
diff --git a/include/uapi/linux/netfilter/nf_conntrack_common.h b/include/uapi/linux/netfilter/nf_conntrack_common.h
index 8dd803818ebe..319f47128db8 100644
--- a/include/uapi/linux/netfilter/nf_conntrack_common.h
+++ b/include/uapi/linux/netfilter/nf_conntrack_common.h
@@ -25,6 +25,10 @@ enum ip_conntrack_info {
 	IP_CT_NUMBER = IP_CT_IS_REPLY * 2 - 1
 };
 
+#define NF_CT_STATE_INVALID_BIT			(1 << 0)
+#define NF_CT_STATE_BIT(ctinfo)			(1 << ((ctinfo) % IP_CT_IS_REPLY + 1))
+#define NF_CT_STATE_UNTRACKED_BIT		(1 << (IP_CT_NUMBER + 1))
+
 /* Bitset representing status of connection. */
 enum ip_conntrack_status {
 	/* It's an expected connection: bit 0 set.  This bit never changed */
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
new file mode 100644
index 000000000000..ec6d84a8ed1e
--- /dev/null
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -0,0 +1,582 @@
+#ifndef _LINUX_NF_TABLES_H
+#define _LINUX_NF_TABLES_H
+
+#define NFT_CHAIN_MAXNAMELEN 32
+
+enum nft_registers {
+	NFT_REG_VERDICT,
+	NFT_REG_1,
+	NFT_REG_2,
+	NFT_REG_3,
+	NFT_REG_4,
+	__NFT_REG_MAX
+};
+#define NFT_REG_MAX	(__NFT_REG_MAX - 1)
+
+/**
+ * enum nft_verdicts - nf_tables internal verdicts
+ *
+ * @NFT_CONTINUE: continue evaluation of the current rule
+ * @NFT_BREAK: terminate evaluation of the current rule
+ * @NFT_JUMP: push the current chain on the jump stack and jump to a chain
+ * @NFT_GOTO: jump to a chain without pushing the current chain on the jump stack
+ * @NFT_RETURN: return to the topmost chain on the jump stack
+ *
+ * The nf_tables verdicts share their numeric space with the netfilter verdicts.
+ */
+enum nft_verdicts {
+	NFT_CONTINUE	= -1,
+	NFT_BREAK	= -2,
+	NFT_JUMP	= -3,
+	NFT_GOTO	= -4,
+	NFT_RETURN	= -5,
+};
+
+/**
+ * enum nf_tables_msg_types - nf_tables netlink message types
+ *
+ * @NFT_MSG_NEWTABLE: create a new table (enum nft_table_attributes)
+ * @NFT_MSG_GETTABLE: get a table (enum nft_table_attributes)
+ * @NFT_MSG_DELTABLE: delete a table (enum nft_table_attributes)
+ * @NFT_MSG_NEWCHAIN: create a new chain (enum nft_chain_attributes)
+ * @NFT_MSG_GETCHAIN: get a chain (enum nft_chain_attributes)
+ * @NFT_MSG_DELCHAIN: delete a chain (enum nft_chain_attributes)
+ * @NFT_MSG_NEWRULE: create a new rule (enum nft_rule_attributes)
+ * @NFT_MSG_GETRULE: get a rule (enum nft_rule_attributes)
+ * @NFT_MSG_DELRULE: delete a rule (enum nft_rule_attributes)
+ */
+enum nf_tables_msg_types {
+	NFT_MSG_NEWTABLE,
+	NFT_MSG_GETTABLE,
+	NFT_MSG_DELTABLE,
+	NFT_MSG_NEWCHAIN,
+	NFT_MSG_GETCHAIN,
+	NFT_MSG_DELCHAIN,
+	NFT_MSG_NEWRULE,
+	NFT_MSG_GETRULE,
+	NFT_MSG_DELRULE,
+	NFT_MSG_MAX,
+};
+
+enum nft_list_attributes {
+	NFTA_LIST_UNPEC,
+	NFTA_LIST_ELEM,
+	__NFTA_LIST_MAX
+};
+#define NFTA_LIST_MAX		(__NFTA_LIST_MAX - 1)
+
+/**
+ * enum nft_hook_attributes - nf_tables netfilter hook netlink attributes
+ *
+ * @NFTA_HOOK_HOOKNUM: netfilter hook number (NLA_U32)
+ * @NFTA_HOOK_PRIORITY: netfilter hook priority (NLA_U32)
+ */
+enum nft_hook_attributes {
+	NFTA_HOOK_UNSPEC,
+	NFTA_HOOK_HOOKNUM,
+	NFTA_HOOK_PRIORITY,
+	__NFTA_HOOK_MAX
+};
+#define NFTA_HOOK_MAX		(__NFTA_HOOK_MAX - 1)
+
+/**
+ * enum nft_table_attributes - nf_tables table netlink attributes
+ *
+ * @NFTA_TABLE_NAME: name of the table (NLA_STRING)
+ */
+enum nft_table_attributes {
+	NFTA_TABLE_UNSPEC,
+	NFTA_TABLE_NAME,
+	__NFTA_TABLE_MAX
+};
+#define NFTA_TABLE_MAX		(__NFTA_TABLE_MAX - 1)
+
+/**
+ * enum nft_chain_attributes - nf_tables chain netlink attributes
+ *
+ * @NFTA_CHAIN_TABLE: name of the table containing the chain (NLA_STRING)
+ * @NFTA_CHAIN_HANDLE: numeric handle of the chain (NLA_U64)
+ * @NFTA_CHAIN_NAME: name of the chain (NLA_STRING)
+ * @NFTA_CHAIN_HOOK: hook specification for basechains (NLA_NESTED: nft_hook_attributes)
+ */
+enum nft_chain_attributes {
+	NFTA_CHAIN_UNSPEC,
+	NFTA_CHAIN_TABLE,
+	NFTA_CHAIN_HANDLE,
+	NFTA_CHAIN_NAME,
+	NFTA_CHAIN_HOOK,
+	__NFTA_CHAIN_MAX
+};
+#define NFTA_CHAIN_MAX		(__NFTA_CHAIN_MAX - 1)
+
+/**
+ * enum nft_rule_attributes - nf_tables rule netlink attributes
+ *
+ * @NFTA_RULE_TABLE: name of the table containing the rule (NLA_STRING)
+ * @NFTA_RULE_CHAIN: name of the chain containing the rule (NLA_STRING)
+ * @NFTA_RULE_HANDLE: numeric handle of the rule (NLA_U64)
+ * @NFTA_RULE_EXPRESSIONS: list of expressions (NLA_NESTED: nft_expr_attributes)
+ */
+enum nft_rule_attributes {
+	NFTA_RULE_UNSPEC,
+	NFTA_RULE_TABLE,
+	NFTA_RULE_CHAIN,
+	NFTA_RULE_HANDLE,
+	NFTA_RULE_EXPRESSIONS,
+	__NFTA_RULE_MAX
+};
+#define NFTA_RULE_MAX		(__NFTA_RULE_MAX - 1)
+
+enum nft_data_attributes {
+	NFTA_DATA_UNSPEC,
+	NFTA_DATA_VALUE,
+	NFTA_DATA_VERDICT,
+	__NFTA_DATA_MAX
+};
+#define NFTA_DATA_MAX		(__NFTA_DATA_MAX - 1)
+
+/**
+ * enum nft_verdict_attributes - nf_tables verdict netlink attributes
+ *
+ * @NFTA_VERDICT_CODE: nf_tables verdict (NLA_U32: enum nft_verdicts)
+ * @NFTA_VERDICT_CHAIN: jump target chain name (NLA_STRING)
+ */
+enum nft_verdict_attributes {
+	NFTA_VERDICT_UNSPEC,
+	NFTA_VERDICT_CODE,
+	NFTA_VERDICT_CHAIN,
+	__NFTA_VERDICT_MAX
+};
+#define NFTA_VERDICT_MAX	(__NFTA_VERDICT_MAX - 1)
+
+/**
+ * enum nft_expr_attributes - nf_tables expression netlink attributes
+ *
+ * @NFTA_EXPR_NAME: name of the expression type (NLA_STRING)
+ * @NFTA_EXPR_DATA: type specific data (NLA_NESTED)
+ */
+enum nft_expr_attributes {
+	NFTA_EXPR_UNSPEC,
+	NFTA_EXPR_NAME,
+	NFTA_EXPR_DATA,
+	__NFTA_EXPR_MAX
+};
+#define NFTA_EXPR_MAX		(__NFTA_EXPR_MAX - 1)
+
+/**
+ * enum nft_immediate_attributes - nf_tables immediate expression netlink attributes
+ *
+ * @NFTA_IMMEDIATE_DREG: destination register to load data into (NLA_U32)
+ * @NFTA_IMMEDIATE_DATA: data to load (NLA_NESTED: nft_data_attributes)
+ */
+enum nft_immediate_attributes {
+	NFTA_IMMEDIATE_UNSPEC,
+	NFTA_IMMEDIATE_DREG,
+	NFTA_IMMEDIATE_DATA,
+	__NFTA_IMMEDIATE_MAX
+};
+#define NFTA_IMMEDIATE_MAX	(__NFTA_IMMEDIATE_MAX - 1)
+
+/**
+ * enum nft_bitwise_attributes - nf_tables bitwise expression netlink attributes
+ *
+ * @NFTA_BITWISE_SREG: source register (NLA_U32: nft_registers)
+ * @NFTA_BITWISE_DREG: destination register (NLA_U32: nft_registers)
+ * @NFTA_BITWISE_LEN: length of operands (NLA_U32)
+ * @NFTA_BITWISE_MASK: mask value (NLA_NESTED: nft_data_attributes)
+ * @NFTA_BITWISE_XOR: xor value (NLA_NESTED: nft_data_attributes)
+ *
+ * The bitwise expression performs the following operation:
+ *
+ * dreg = (sreg & mask) ^ xor
+ *
+ * which allow to express all bitwise operations:
+ *
+ * 		mask	xor
+ * NOT:		1	1
+ * OR:		0	x
+ * XOR:		1	x
+ * AND:		x	0
+ */
+enum nft_bitwise_attributes {
+	NFTA_BITWISE_UNSPEC,
+	NFTA_BITWISE_SREG,
+	NFTA_BITWISE_DREG,
+	NFTA_BITWISE_LEN,
+	NFTA_BITWISE_MASK,
+	NFTA_BITWISE_XOR,
+	__NFTA_BITWISE_MAX
+};
+#define NFTA_BITWISE_MAX	(__NFTA_BITWISE_MAX - 1)
+
+/**
+ * enum nft_byteorder_ops - nf_tables byteorder operators
+ *
+ * @NFT_BYTEORDER_NTOH: network to host operator
+ * @NFT_BYTEORDER_HTON: host to network opertaor
+ */
+enum nft_byteorder_ops {
+	NFT_BYTEORDER_NTOH,
+	NFT_BYTEORDER_HTON,
+};
+
+/**
+ * enum nft_byteorder_attributes - nf_tables byteorder expression netlink attributes
+ *
+ * @NFTA_BYTEORDER_SREG: source register (NLA_U32: nft_registers)
+ * @NFTA_BYTEORDER_DREG: destination register (NLA_U32: nft_registers)
+ * @NFTA_BYTEORDER_OP: operator (NLA_U32: enum nft_byteorder_ops)
+ * @NFTA_BYTEORDER_LEN: length of the data (NLA_U32)
+ * @NFTA_BYTEORDER_SIZE: data size in bytes (NLA_U32: 2 or 4)
+ */
+enum nft_byteorder_attributes {
+	NFTA_BYTEORDER_UNSPEC,
+	NFTA_BYTEORDER_SREG,
+	NFTA_BYTEORDER_DREG,
+	NFTA_BYTEORDER_OP,
+	NFTA_BYTEORDER_LEN,
+	NFTA_BYTEORDER_SIZE,
+	__NFTA_BYTEORDER_MAX
+};
+#define NFTA_BYTEORDER_MAX	(__NFTA_BYTEORDER_MAX - 1)
+
+/**
+ * enum nft_cmp_ops - nf_tables relational operator
+ *
+ * @NFT_CMP_EQ: equal
+ * @NFT_CMP_NEQ: not equal
+ * @NFT_CMP_LT: less than
+ * @NFT_CMP_LTE: less than or equal to
+ * @NFT_CMP_GT: greater than
+ * @NFT_CMP_GTE: greater than or equal to
+ */
+enum nft_cmp_ops {
+	NFT_CMP_EQ,
+	NFT_CMP_NEQ,
+	NFT_CMP_LT,
+	NFT_CMP_LTE,
+	NFT_CMP_GT,
+	NFT_CMP_GTE,
+};
+
+/**
+ * enum nft_cmp_attributes - nf_tables cmp expression netlink attributes
+ *
+ * @NFTA_CMP_SREG: source register of data to compare (NLA_U32: nft_registers)
+ * @NFTA_CMP_OP: cmp operation (NLA_U32: nft_cmp_ops)
+ * @NFTA_CMP_DATA: data to compare against (NLA_NESTED: nft_data_attributes)
+ */
+enum nft_cmp_attributes {
+	NFTA_CMP_UNSPEC,
+	NFTA_CMP_SREG,
+	NFTA_CMP_OP,
+	NFTA_CMP_DATA,
+	__NFTA_CMP_MAX
+};
+#define NFTA_CMP_MAX		(__NFTA_CMP_MAX - 1)
+
+enum nft_set_elem_flags {
+	NFT_SE_INTERVAL_END	= 0x1,
+};
+
+enum nft_set_elem_attributes {
+	NFTA_SE_UNSPEC,
+	NFTA_SE_KEY,
+	NFTA_SE_DATA,
+	NFTA_SE_FLAGS,
+	__NFTA_SE_MAX
+};
+#define NFTA_SE_MAX		(__NFTA_SE_MAX - 1)
+
+enum nft_set_flags {
+	NFT_SET_INTERVAL	= 0x1,
+	NFT_SET_MAP		= 0x2,
+};
+
+enum nft_set_attributes {
+	NFTA_SET_UNSPEC,
+	NFTA_SET_FLAGS,
+	NFTA_SET_SREG,
+	NFTA_SET_DREG,
+	NFTA_SET_KLEN,
+	NFTA_SET_DLEN,
+	NFTA_SET_ELEMENTS,
+	__NFTA_SET_MAX
+};
+#define NFTA_SET_MAX		(__NFTA_SET_MAX - 1)
+
+enum nft_hash_flags {
+	NFT_HASH_MAP		= 0x1,
+};
+
+enum nft_hash_elem_attributes {
+	NFTA_HE_UNSPEC,
+	NFTA_HE_KEY,
+	NFTA_HE_DATA,
+	__NFTA_HE_MAX
+};
+#define NFTA_HE_MAX		(__NFTA_HE_MAX - 1)
+
+enum nft_hash_attributes {
+	NFTA_HASH_UNSPEC,
+	NFTA_HASH_FLAGS,
+	NFTA_HASH_SREG,
+	NFTA_HASH_DREG,
+	NFTA_HASH_KLEN,
+	NFTA_HASH_ELEMENTS,
+	__NFTA_HASH_MAX
+};
+#define NFTA_HASH_MAX		(__NFTA_HASH_MAX - 1)
+
+/**
+ * enum nft_payload_bases - nf_tables payload expression offset bases
+ *
+ * @NFT_PAYLOAD_LL_HEADER: link layer header
+ * @NFT_PAYLOAD_NETWORK_HEADER: network header
+ * @NFT_PAYLOAD_TRANSPORT_HEADER: transport header
+ */
+enum nft_payload_bases {
+	NFT_PAYLOAD_LL_HEADER,
+	NFT_PAYLOAD_NETWORK_HEADER,
+	NFT_PAYLOAD_TRANSPORT_HEADER,
+};
+
+/**
+ * enum nft_payload_attributes - nf_tables payload expression netlink attributes
+ *
+ * @NFTA_PAYLOAD_DREG: destination register to load data into (NLA_U32: nft_registers)
+ * @NFTA_PAYLOAD_BASE: payload base (NLA_U32: nft_payload_bases)
+ * @NFTA_PAYLOAD_OFFSET: payload offset relative to base (NLA_U32)
+ * @NFTA_PAYLOAD_LEN: payload length (NLA_U32)
+ */
+enum nft_payload_attributes {
+	NFTA_PAYLOAD_UNSPEC,
+	NFTA_PAYLOAD_DREG,
+	NFTA_PAYLOAD_BASE,
+	NFTA_PAYLOAD_OFFSET,
+	NFTA_PAYLOAD_LEN,
+	__NFTA_PAYLOAD_MAX
+};
+#define NFTA_PAYLOAD_MAX	(__NFTA_PAYLOAD_MAX - 1)
+
+/**
+ * enum nft_exthdr_attributes - nf_tables IPv6 extension header expression netlink attributes
+ *
+ * @NFTA_EXTHDR_DREG: destination register (NLA_U32: nft_registers)
+ * @NFTA_EXTHDR_TYPE: extension header type (NLA_U8)
+ * @NFTA_EXTHDR_OFFSET: extension header offset (NLA_U32)
+ * @NFTA_EXTHDR_LEN: extension header length (NLA_U32)
+ */
+enum nft_exthdr_attributes {
+	NFTA_EXTHDR_UNSPEC,
+	NFTA_EXTHDR_DREG,
+	NFTA_EXTHDR_TYPE,
+	NFTA_EXTHDR_OFFSET,
+	NFTA_EXTHDR_LEN,
+	__NFTA_EXTHDR_MAX
+};
+#define NFTA_EXTHDR_MAX		(__NFTA_EXTHDR_MAX - 1)
+
+/**
+ * enum nft_meta_keys - nf_tables meta expression keys
+ *
+ * @NFT_META_LEN: packet length (skb->len)
+ * @NFT_META_PROTOCOL: packet ethertype protocol (skb->protocol), invalid in OUTPUT
+ * @NFT_META_PRIORITY: packet priority (skb->priority)
+ * @NFT_META_MARK: packet mark (skb->mark)
+ * @NFT_META_IIF: packet input interface index (dev->ifindex)
+ * @NFT_META_OIF: packet output interface index (dev->ifindex)
+ * @NFT_META_IIFNAME: packet input interface name (dev->name)
+ * @NFT_META_OIFNAME: packet output interface name (dev->name)
+ * @NFT_META_IIFTYPE: packet input interface type (dev->type)
+ * @NFT_META_OIFTYPE: packet output interface type (dev->type)
+ * @NFT_META_SKUID: originating socket UID (fsuid)
+ * @NFT_META_SKGID: originating socket GID (fsgid)
+ * @NFT_META_NFTRACE: packet nftrace bit
+ * @NFT_META_RTCLASSID: realm value of packet's route (skb->dst->tclassid)
+ * @NFT_META_SECMARK: packet secmark (skb->secmark)
+ */
+enum nft_meta_keys {
+	NFT_META_LEN,
+	NFT_META_PROTOCOL,
+	NFT_META_PRIORITY,
+	NFT_META_MARK,
+	NFT_META_IIF,
+	NFT_META_OIF,
+	NFT_META_IIFNAME,
+	NFT_META_OIFNAME,
+	NFT_META_IIFTYPE,
+	NFT_META_OIFTYPE,
+	NFT_META_SKUID,
+	NFT_META_SKGID,
+	NFT_META_NFTRACE,
+	NFT_META_RTCLASSID,
+	NFT_META_SECMARK,
+};
+
+/**
+ * enum nft_meta_attributes - nf_tables meta expression netlink attributes
+ *
+ * @NFTA_META_DREG: destination register (NLA_U32)
+ * @NFTA_META_KEY: meta data item to load (NLA_U32: nft_meta_keys)
+ */
+enum nft_meta_attributes {
+	NFTA_META_UNSPEC,
+	NFTA_META_DREG,
+	NFTA_META_KEY,
+	__NFTA_META_MAX
+};
+#define NFTA_META_MAX		(__NFTA_META_MAX - 1)
+
+/**
+ * enum nft_ct_keys - nf_tables ct expression keys
+ *
+ * @NFT_CT_STATE: conntrack state (bitmask of enum ip_conntrack_info)
+ * @NFT_CT_DIRECTION: conntrack direction (enum ip_conntrack_dir)
+ * @NFT_CT_STATUS: conntrack status (bitmask of enum ip_conntrack_status)
+ * @NFT_CT_MARK: conntrack mark value
+ * @NFT_CT_SECMARK: conntrack secmark value
+ * @NFT_CT_EXPIRATION: relative conntrack expiration time in ms
+ * @NFT_CT_HELPER: connection tracking helper assigned to conntrack
+ * @NFT_CT_L3PROTOCOL: conntrack layer 3 protocol
+ * @NFT_CT_SRC: conntrack layer 3 protocol source (IPv4/IPv6 address)
+ * @NFT_CT_DST: conntrack layer 3 protocol destination (IPv4/IPv6 address)
+ * @NFT_CT_PROTOCOL: conntrack layer 4 protocol
+ * @NFT_CT_PROTO_SRC: conntrack layer 4 protocol source
+ * @NFT_CT_PROTO_DST: conntrack layer 4 protocol destination
+ */
+enum nft_ct_keys {
+	NFT_CT_STATE,
+	NFT_CT_DIRECTION,
+	NFT_CT_STATUS,
+	NFT_CT_MARK,
+	NFT_CT_SECMARK,
+	NFT_CT_EXPIRATION,
+	NFT_CT_HELPER,
+	NFT_CT_L3PROTOCOL,
+	NFT_CT_SRC,
+	NFT_CT_DST,
+	NFT_CT_PROTOCOL,
+	NFT_CT_PROTO_SRC,
+	NFT_CT_PROTO_DST,
+};
+
+/**
+ * enum nft_ct_attributes - nf_tables ct expression netlink attributes
+ *
+ * @NFTA_CT_DREG: destination register (NLA_U32)
+ * @NFTA_CT_KEY: conntrack data item to load (NLA_U32: nft_ct_keys)
+ * @NFTA_CT_DIRECTION: direction in case of directional keys (NLA_U8)
+ */
+enum nft_ct_attributes {
+	NFTA_CT_UNSPEC,
+	NFTA_CT_DREG,
+	NFTA_CT_KEY,
+	NFTA_CT_DIRECTION,
+	__NFTA_CT_MAX
+};
+#define NFTA_CT_MAX		(__NFTA_CT_MAX - 1)
+
+/**
+ * enum nft_limit_attributes - nf_tables limit expression netlink attributes
+ *
+ * @NFTA_LIMIT_RATE: refill rate (NLA_U64)
+ * @NFTA_LIMIT_UNIT: refill unit (NLA_U64)
+ */
+enum nft_limit_attributes {
+	NFTA_LIMIT_UNSPEC,
+	NFTA_LIMIT_RATE,
+	NFTA_LIMIT_UNIT,
+	__NFTA_LIMIT_MAX
+};
+#define NFTA_LIMIT_MAX		(__NFTA_LIMIT_MAX - 1)
+
+/**
+ * enum nft_counter_attributes - nf_tables counter expression netlink attributes
+ *
+ * @NFTA_COUNTER_BYTES: number of bytes (NLA_U64)
+ * @NFTA_COUNTER_PACKETS: number of packets (NLA_U64)
+ */
+enum nft_counter_attributes {
+	NFTA_COUNTER_UNSPEC,
+	NFTA_COUNTER_BYTES,
+	NFTA_COUNTER_PACKETS,
+	__NFTA_COUNTER_MAX
+};
+#define NFTA_COUNTER_MAX	(__NFTA_COUNTER_MAX - 1)
+
+/**
+ * enum nft_log_attributes - nf_tables log expression netlink attributes
+ *
+ * @NFTA_LOG_GROUP: netlink group to send messages to (NLA_U32)
+ * @NFTA_LOG_PREFIX: prefix to prepend to log messages (NLA_STRING)
+ * @NFTA_LOG_SNAPLEN: length of payload to include in netlink message (NLA_U32)
+ * @NFTA_LOG_QTHRESHOLD: queue threshold (NLA_U32)
+ */
+enum nft_log_attributes {
+	NFTA_LOG_UNSPEC,
+	NFTA_LOG_GROUP,
+	NFTA_LOG_PREFIX,
+	NFTA_LOG_SNAPLEN,
+	NFTA_LOG_QTHRESHOLD,
+	__NFTA_LOG_MAX
+};
+#define NFTA_LOG_MAX		(__NFTA_LOG_MAX - 1)
+
+/**
+ * enum nft_reject_types - nf_tables reject expression reject types
+ *
+ * @NFT_REJECT_ICMP_UNREACH: reject using ICMP unreachable
+ * @NFT_REJECT_TCP_RST: reject using TCP RST
+ */
+enum nft_reject_types {
+	NFT_REJECT_ICMP_UNREACH,
+	NFT_REJECT_TCP_RST,
+};
+
+/**
+ * enum nft_reject_attributes - nf_tables reject expression netlink attributes
+ *
+ * @NFTA_REJECT_TYPE: packet type to use (NLA_U32: nft_reject_types)
+ * @NFTA_REJECT_ICMP_CODE: ICMP code to use (NLA_U8)
+ */
+enum nft_reject_attributes {
+	NFTA_REJECT_UNSPEC,
+	NFTA_REJECT_TYPE,
+	NFTA_REJECT_ICMP_CODE,
+	__NFTA_REJECT_MAX
+};
+#define NFTA_REJECT_MAX		(__NFTA_REJECT_MAX - 1)
+
+/**
+ * enum nft_nat_types - nf_tables nat expression NAT types
+ *
+ * @NFT_NAT_SNAT: source NAT
+ * @NFT_NAT_DNAT: destination NAT
+ */
+enum nft_nat_types {
+	NFT_NAT_SNAT,
+	NFT_NAT_DNAT,
+};
+
+/**
+ * enum nft_nat_attributes - nf_tables nat expression netlink attributes
+ *
+ * @NFTA_NAT_TYPE: NAT type (NLA_U32: nft_nat_types)
+ * @NFTA_NAT_ADDR_MIN: source register of address range start (NLA_U32: nft_registers)
+ * @NFTA_NAT_ADDR_MAX: source register of address range end (NLA_U32: nft_registers)
+ * @NFTA_NAT_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
+ * @NFTA_NAT_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
+ */
+enum nft_nat_attributes {
+	NFTA_NAT_UNSPEC,
+	NFTA_NAT_TYPE,
+	NFTA_NAT_ADDR_MIN,
+	NFTA_NAT_ADDR_MAX,
+	NFTA_NAT_PROTO_MIN,
+	NFTA_NAT_PROTO_MAX,
+	__NFTA_NAT_MAX
+};
+#define NFTA_NAT_MAX		(__NFTA_NAT_MAX - 1)
+
+#endif /* _LINUX_NF_TABLES_H */
diff --git a/include/uapi/linux/netfilter/nfnetlink.h b/include/uapi/linux/netfilter/nfnetlink.h
index 4a4efafad5f4..d276c3bd55b8 100644
--- a/include/uapi/linux/netfilter/nfnetlink.h
+++ b/include/uapi/linux/netfilter/nfnetlink.h
@@ -18,6 +18,8 @@ enum nfnetlink_groups {
 #define NFNLGRP_CONNTRACK_EXP_UPDATE	NFNLGRP_CONNTRACK_EXP_UPDATE
 	NFNLGRP_CONNTRACK_EXP_DESTROY,
 #define NFNLGRP_CONNTRACK_EXP_DESTROY	NFNLGRP_CONNTRACK_EXP_DESTROY
+	NFNLGRP_NFTABLES,
+#define NFNLGRP_NFTABLES                NFNLGRP_NFTABLES
 	__NFNLGRP_MAX,
 };
 #define NFNLGRP_MAX	(__NFNLGRP_MAX - 1)
@@ -51,6 +53,7 @@ struct nfgenmsg {
 #define NFNL_SUBSYS_ACCT		7
 #define NFNL_SUBSYS_CTNETLINK_TIMEOUT	8
 #define NFNL_SUBSYS_CTHELPER		9
-#define NFNL_SUBSYS_COUNT		10
+#define NFNL_SUBSYS_NFTABLES		10
+#define NFNL_SUBSYS_COUNT		11
 
 #endif /* _UAPI_NFNETLINK_H */
diff --git a/net/bridge/netfilter/Kconfig b/net/bridge/netfilter/Kconfig
index a9aff9c7d027..68f8128147be 100644
--- a/net/bridge/netfilter/Kconfig
+++ b/net/bridge/netfilter/Kconfig
@@ -1,6 +1,9 @@
 #
 # Bridge netfilter configuration
 #
+#
+config NF_TABLES_BRIDGE
+	tristate "Ethernet Bridge nf_tables support"
 
 menuconfig BRIDGE_NF_EBTABLES
 	tristate "Ethernet Bridge tables (ebtables) support"
diff --git a/net/bridge/netfilter/Makefile b/net/bridge/netfilter/Makefile
index 0718699540b0..ea7629f58b3d 100644
--- a/net/bridge/netfilter/Makefile
+++ b/net/bridge/netfilter/Makefile
@@ -2,6 +2,8 @@
 # Makefile for the netfilter modules for Link Layer filtering on a bridge.
 #
 
+obj-$(CONFIG_NF_TABLES_BRIDGE) += nf_tables_bridge.o
+
 obj-$(CONFIG_BRIDGE_NF_EBTABLES) += ebtables.o
 
 # tables
diff --git a/net/bridge/netfilter/nf_tables_bridge.c b/net/bridge/netfilter/nf_tables_bridge.c
new file mode 100644
index 000000000000..bc5c21c911c0
--- /dev/null
+++ b/net/bridge/netfilter/nf_tables_bridge.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/netfilter_bridge.h>
+#include <net/netfilter/nf_tables.h>
+
+static struct nft_af_info nft_af_bridge __read_mostly = {
+	.family		= NFPROTO_BRIDGE,
+	.nhooks		= NF_BR_NUMHOOKS,
+	.owner		= THIS_MODULE,
+};
+
+static int __init nf_tables_bridge_init(void)
+{
+	return nft_register_afinfo(&nft_af_bridge);
+}
+
+static void __exit nf_tables_bridge_exit(void)
+{
+	nft_unregister_afinfo(&nft_af_bridge);
+}
+
+module_init(nf_tables_bridge_init);
+module_exit(nf_tables_bridge_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_FAMILY(AF_BRIDGE);
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
index 1657e39b291f..eb1d56ece361 100644
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -36,6 +36,22 @@ config NF_CONNTRACK_PROC_COMPAT
 
 	  If unsure, say Y.
 
+config NF_TABLES_IPV4
+	depends on NF_TABLES
+	tristate "IPv4 nf_tables support"
+
+config NFT_REJECT_IPV4
+	depends on NF_TABLES_IPV4
+	tristate "nf_tables IPv4 reject support"
+
+config NF_TABLE_ROUTE_IPV4
+	depends on NF_TABLES_IPV4
+	tristate "IPv4 nf_tables route table support"
+
+config NF_TABLE_NAT_IPV4
+	depends on NF_TABLES_IPV4
+	tristate "IPv4 nf_tables nat table support"
+
 config IP_NF_IPTABLES
 	tristate "IP tables support (required for filtering/masq/NAT)"
 	default m if NETFILTER_ADVANCED=n
diff --git a/net/ipv4/netfilter/Makefile b/net/ipv4/netfilter/Makefile
index 3622b248b6dd..b2f01cd2cd65 100644
--- a/net/ipv4/netfilter/Makefile
+++ b/net/ipv4/netfilter/Makefile
@@ -27,6 +27,11 @@ obj-$(CONFIG_NF_NAT_SNMP_BASIC) += nf_nat_snmp_basic.o
 # NAT protocols (nf_nat)
 obj-$(CONFIG_NF_NAT_PROTO_GRE) += nf_nat_proto_gre.o
 
+obj-$(CONFIG_NF_TABLES_IPV4) += nf_tables_ipv4.o
+obj-$(CONFIG_NFT_REJECT_IPV4) += nft_reject_ipv4.o
+obj-$(CONFIG_NF_TABLE_ROUTE_IPV4) += nf_table_route_ipv4.o
+obj-$(CONFIG_NF_TABLE_NAT_IPV4) += nf_table_nat_ipv4.o
+
 # generic IP tables 
 obj-$(CONFIG_IP_NF_IPTABLES) += ip_tables.o
 
diff --git a/net/ipv4/netfilter/nf_table_nat_ipv4.c b/net/ipv4/netfilter/nf_table_nat_ipv4.c
new file mode 100644
index 000000000000..2a6f184c10bd
--- /dev/null
+++ b/net/ipv4/netfilter/nf_table_nat_ipv4.c
@@ -0,0 +1,409 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/skbuff.h>
+#include <linux/ip.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter_ipv4.h>
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_conntrack.h>
+#include <net/netfilter/nf_nat.h>
+#include <net/netfilter/nf_nat_core.h>
+#include <net/netfilter/nf_tables.h>
+#include <net/netfilter/nf_nat_l3proto.h>
+#include <net/ip.h>
+
+struct nft_nat {
+	enum nft_registers	sreg_addr_min:8;
+	enum nft_registers	sreg_addr_max:8;
+	enum nft_registers	sreg_proto_min:8;
+	enum nft_registers	sreg_proto_max:8;
+	enum nf_nat_manip_type	type;
+};
+
+static void nft_nat_eval(const struct nft_expr *expr,
+			 struct nft_data data[NFT_REG_MAX + 1],
+			 const struct nft_pktinfo *pkt)
+{
+	const struct nft_nat *priv = nft_expr_priv(expr);
+	enum ip_conntrack_info ctinfo;
+	struct nf_conn *ct = nf_ct_get(pkt->skb, &ctinfo);
+	struct nf_nat_range range;
+
+	memset(&range, 0, sizeof(range));
+	if (priv->sreg_addr_min) {
+		range.min_addr.ip = data[priv->sreg_addr_min].data[0];
+		range.max_addr.ip = data[priv->sreg_addr_max].data[0];
+		range.flags |= NF_NAT_RANGE_MAP_IPS;
+	}
+
+	if (priv->sreg_proto_min) {
+		range.min_proto.all = data[priv->sreg_proto_min].data[0];
+		range.max_proto.all = data[priv->sreg_proto_max].data[0];
+		range.flags |= NF_NAT_RANGE_PROTO_SPECIFIED;
+	}
+
+	data[NFT_REG_VERDICT].verdict =
+		nf_nat_setup_info(ct, &range, priv->type);
+}
+
+static const struct nla_policy nft_nat_policy[NFTA_NAT_MAX + 1] = {
+	[NFTA_NAT_ADDR_MIN]	= { .type = NLA_U32 },
+	[NFTA_NAT_ADDR_MAX]	= { .type = NLA_U32 },
+	[NFTA_NAT_PROTO_MIN]	= { .type = NLA_U32 },
+	[NFTA_NAT_PROTO_MAX]	= { .type = NLA_U32 },
+	[NFTA_NAT_TYPE]		= { .type = NLA_U32 },
+};
+
+static int nft_nat_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
+			const struct nlattr * const tb[])
+{
+	struct nft_nat *priv = nft_expr_priv(expr);
+	int err;
+
+	if (tb[NFTA_NAT_TYPE] == NULL)
+		return -EINVAL;
+
+	switch (ntohl(nla_get_be32(tb[NFTA_NAT_TYPE]))) {
+	case NFT_NAT_SNAT:
+		priv->type = NF_NAT_MANIP_SRC;
+		break;
+	case NFT_NAT_DNAT:
+		priv->type = NF_NAT_MANIP_DST;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (tb[NFTA_NAT_ADDR_MIN]) {
+		priv->sreg_addr_min = ntohl(nla_get_be32(tb[NFTA_NAT_ADDR_MIN]));
+		err = nft_validate_input_register(priv->sreg_addr_min);
+		if (err < 0)
+			return err;
+	}
+
+	if (tb[NFTA_NAT_ADDR_MAX]) {
+		priv->sreg_addr_max = ntohl(nla_get_be32(tb[NFTA_NAT_ADDR_MAX]));
+		err = nft_validate_input_register(priv->sreg_addr_max);
+		if (err < 0)
+			return err;
+	} else
+		priv->sreg_addr_max = priv->sreg_addr_min;
+
+	if (tb[NFTA_NAT_PROTO_MIN]) {
+		priv->sreg_proto_min = ntohl(nla_get_be32(tb[NFTA_NAT_PROTO_MIN]));
+		err = nft_validate_input_register(priv->sreg_proto_min);
+		if (err < 0)
+			return err;
+	}
+
+	if (tb[NFTA_NAT_PROTO_MAX]) {
+		priv->sreg_proto_max = ntohl(nla_get_be32(tb[NFTA_NAT_PROTO_MAX]));
+		err = nft_validate_input_register(priv->sreg_proto_max);
+		if (err < 0)
+			return err;
+	} else
+		priv->sreg_proto_max = priv->sreg_proto_min;
+
+	return 0;
+}
+
+static int nft_nat_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	const struct nft_nat *priv = nft_expr_priv(expr);
+
+	switch (priv->type) {
+	case NF_NAT_MANIP_SRC:
+		if (nla_put_be32(skb, NFTA_NAT_TYPE, htonl(NFT_NAT_SNAT)))
+			goto nla_put_failure;
+		break;
+	case NF_NAT_MANIP_DST:
+		if (nla_put_be32(skb, NFTA_NAT_TYPE, htonl(NFT_NAT_DNAT)))
+			goto nla_put_failure;
+		break;
+	}
+
+	if (nla_put_be32(skb, NFTA_NAT_ADDR_MIN, htonl(priv->sreg_addr_min)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_NAT_ADDR_MAX, htonl(priv->sreg_addr_max)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_NAT_PROTO_MIN, htonl(priv->sreg_proto_min)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_NAT_PROTO_MAX, htonl(priv->sreg_proto_max)))
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static struct nft_expr_ops nft_nat_ops __read_mostly = {
+	.name		= "nat",
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_nat)),
+	.owner		= THIS_MODULE,
+	.eval		= nft_nat_eval,
+	.init		= nft_nat_init,
+	.dump		= nft_nat_dump,
+	.policy		= nft_nat_policy,
+	.maxattr	= NFTA_NAT_MAX,
+};
+
+/*
+ * NAT table
+ */
+
+static unsigned int nf_nat_fn(const struct nf_hook_ops *ops,
+			      struct sk_buff *skb,
+			      const struct net_device *in,
+			      const struct net_device *out,
+			      int (*okfn)(struct sk_buff *))
+{
+	enum ip_conntrack_info ctinfo;
+	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
+	struct nf_conn_nat *nat;
+	enum nf_nat_manip_type maniptype = HOOK2MANIP(ops->hooknum);
+	unsigned int ret;
+
+	if (ct == NULL || nf_ct_is_untracked(ct))
+		return NF_ACCEPT;
+
+	NF_CT_ASSERT(!(ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET)));
+
+	nat = nfct_nat(ct);
+	if (nat == NULL) {
+		/* Conntrack module was loaded late, can't add extension. */
+		if (nf_ct_is_confirmed(ct))
+			return NF_ACCEPT;
+		nat = nf_ct_ext_add(ct, NF_CT_EXT_NAT, GFP_ATOMIC);
+		if (nat == NULL)
+			return NF_ACCEPT;
+	}
+
+	switch (ctinfo) {
+	case IP_CT_RELATED:
+	case IP_CT_RELATED + IP_CT_IS_REPLY:
+		if (ip_hdr(skb)->protocol == IPPROTO_ICMP) {
+			if (!nf_nat_icmp_reply_translation(skb, ct, ctinfo,
+							   ops->hooknum))
+				return NF_DROP;
+			else
+				return NF_ACCEPT;
+		}
+		/* Fall through */
+	case IP_CT_NEW:
+		if (nf_nat_initialized(ct, maniptype))
+			break;
+
+		ret = nft_do_chain(ops, skb, in, out, okfn);
+		if (ret != NF_ACCEPT)
+			return ret;
+		if (!nf_nat_initialized(ct, maniptype)) {
+			ret = nf_nat_alloc_null_binding(ct, ops->hooknum);
+			if (ret != NF_ACCEPT)
+				return ret;
+		}
+	default:
+		break;
+	}
+
+	return nf_nat_packet(ct, ctinfo, ops->hooknum, skb);
+}
+
+static unsigned int nf_nat_prerouting(const struct nf_hook_ops *ops,
+				      struct sk_buff *skb,
+				      const struct net_device *in,
+				      const struct net_device *out,
+				      int (*okfn)(struct sk_buff *))
+{
+	__be32 daddr = ip_hdr(skb)->daddr;
+	unsigned int ret;
+
+	ret = nf_nat_fn(ops, skb, in, out, okfn);
+	if (ret != NF_DROP && ret != NF_STOLEN &&
+	    ip_hdr(skb)->daddr != daddr) {
+		skb_dst_drop(skb);
+	}
+	return ret;
+}
+
+static unsigned int nf_nat_postrouting(const struct nf_hook_ops *ops,
+				       struct sk_buff *skb,
+				       const struct net_device *in,
+				       const struct net_device *out,
+				       int (*okfn)(struct sk_buff *))
+{
+	enum ip_conntrack_info ctinfo __maybe_unused;
+	const struct nf_conn *ct __maybe_unused;
+	unsigned int ret;
+
+	ret = nf_nat_fn(ops, skb, in, out, okfn);
+#ifdef CONFIG_XFRM
+	if (ret != NF_DROP && ret != NF_STOLEN &&
+	    (ct = nf_ct_get(skb, &ctinfo)) != NULL) {
+		enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
+
+		if (ct->tuplehash[dir].tuple.src.u3.ip !=
+		    ct->tuplehash[!dir].tuple.dst.u3.ip ||
+		    ct->tuplehash[dir].tuple.src.u.all !=
+		    ct->tuplehash[!dir].tuple.dst.u.all)
+			return nf_xfrm_me_harder(skb, AF_INET) == 0 ?
+								ret : NF_DROP;
+	}
+#endif
+	return ret;
+}
+
+static unsigned int nf_nat_output(const struct nf_hook_ops *ops,
+				  struct sk_buff *skb,
+				  const struct net_device *in,
+				  const struct net_device *out,
+				  int (*okfn)(struct sk_buff *))
+{
+	enum ip_conntrack_info ctinfo;
+	const struct nf_conn *ct;
+	unsigned int ret;
+
+	ret = nf_nat_fn(ops, skb, in, out, okfn);
+	if (ret != NF_DROP && ret != NF_STOLEN &&
+	    (ct = nf_ct_get(skb, &ctinfo)) != NULL) {
+		enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
+
+		if (ct->tuplehash[dir].tuple.dst.u3.ip !=
+		    ct->tuplehash[!dir].tuple.src.u3.ip) {
+			if (ip_route_me_harder(skb, RTN_UNSPEC))
+				ret = NF_DROP;
+		}
+#ifdef CONFIG_XFRM
+		else if (ct->tuplehash[dir].tuple.dst.u.all !=
+			 ct->tuplehash[!dir].tuple.src.u.all)
+			if (nf_xfrm_me_harder(skb, AF_INET))
+				ret = NF_DROP;
+#endif
+	}
+	return ret;
+}
+
+static struct nft_base_chain nf_chain_nat_prerouting __read_mostly = {
+	.chain	= {
+		.name		= "PREROUTING",
+		.rules		= LIST_HEAD_INIT(nf_chain_nat_prerouting.chain.rules),
+		.flags		= NFT_BASE_CHAIN | NFT_CHAIN_BUILTIN,
+	},
+	.ops	= {
+		.hook		= nf_nat_prerouting,
+		.owner		= THIS_MODULE,
+		.pf		= NFPROTO_IPV4,
+		.hooknum	= NF_INET_PRE_ROUTING,
+		.priority	= NF_IP_PRI_NAT_DST,
+		.priv		= &nf_chain_nat_prerouting.chain,
+	},
+};
+
+static struct nft_base_chain nf_chain_nat_postrouting __read_mostly = {
+	.chain	= {
+		.name		= "POSTROUTING",
+		.rules		= LIST_HEAD_INIT(nf_chain_nat_postrouting.chain.rules),
+		.flags		= NFT_BASE_CHAIN | NFT_CHAIN_BUILTIN,
+	},
+	.ops	= {
+		.hook		= nf_nat_postrouting,
+		.owner		= THIS_MODULE,
+		.pf		= NFPROTO_IPV4,
+		.hooknum	= NF_INET_POST_ROUTING,
+		.priority	= NF_IP_PRI_NAT_SRC,
+		.priv		= &nf_chain_nat_postrouting.chain,
+	},
+};
+
+static struct nft_base_chain nf_chain_nat_output __read_mostly = {
+	.chain	= {
+		.name		= "OUTPUT",
+		.rules		= LIST_HEAD_INIT(nf_chain_nat_output.chain.rules),
+		.flags		= NFT_BASE_CHAIN | NFT_CHAIN_BUILTIN,
+	},
+	.ops	= {
+		.hook		= nf_nat_output,
+		.owner		= THIS_MODULE,
+		.pf		= NFPROTO_IPV4,
+		.hooknum	= NF_INET_LOCAL_OUT,
+		.priority	= NF_IP_PRI_NAT_DST,
+		.priv		= &nf_chain_nat_output.chain,
+	},
+};
+
+static struct nft_base_chain nf_chain_nat_input __read_mostly = {
+	.chain	= {
+		.name		= "INPUT",
+		.rules		= LIST_HEAD_INIT(nf_chain_nat_input.chain.rules),
+		.flags		= NFT_BASE_CHAIN | NFT_CHAIN_BUILTIN,
+	},
+	.ops	= {
+		.hook		= nf_nat_fn,
+		.owner		= THIS_MODULE,
+		.pf		= NFPROTO_IPV4,
+		.hooknum	= NF_INET_LOCAL_IN,
+		.priority	= NF_IP_PRI_NAT_SRC,
+		.priv		= &nf_chain_nat_input.chain,
+	},
+};
+
+
+static struct nft_table nf_table_nat_ipv4 __read_mostly = {
+	.name	= "nat",
+	.chains	= LIST_HEAD_INIT(nf_table_nat_ipv4.chains),
+};
+
+static int __init nf_table_nat_init(void)
+{
+	int err;
+
+	list_add_tail(&nf_chain_nat_prerouting.chain.list,
+		      &nf_table_nat_ipv4.chains);
+	list_add_tail(&nf_chain_nat_postrouting.chain.list,
+		      &nf_table_nat_ipv4.chains);
+	list_add_tail(&nf_chain_nat_output.chain.list,
+		      &nf_table_nat_ipv4.chains);
+	list_add_tail(&nf_chain_nat_input.chain.list,
+		      &nf_table_nat_ipv4.chains);
+
+	err = nft_register_table(&nf_table_nat_ipv4, NFPROTO_IPV4);
+	if (err < 0)
+		goto err1;
+
+	err = nft_register_expr(&nft_nat_ops);
+	if (err < 0)
+		goto err2;
+
+	return 0;
+
+err2:
+	nft_unregister_table(&nf_table_nat_ipv4, NFPROTO_IPV4);
+err1:
+	return err;
+}
+
+static void __exit nf_table_nat_exit(void)
+{
+	nft_unregister_expr(&nft_nat_ops);
+	nft_unregister_table(&nf_table_nat_ipv4, AF_INET);
+}
+
+module_init(nf_table_nat_init);
+module_exit(nf_table_nat_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_TABLE(AF_INET, "nat");
+MODULE_ALIAS_NFT_EXPR("nat");
diff --git a/net/ipv4/netfilter/nf_table_route_ipv4.c b/net/ipv4/netfilter/nf_table_route_ipv4.c
new file mode 100644
index 000000000000..4f257a1ed661
--- /dev/null
+++ b/net/ipv4/netfilter/nf_table_route_ipv4.c
@@ -0,0 +1,97 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/skbuff.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter_ipv4.h>
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables.h>
+#include <net/route.h>
+#include <net/ip.h>
+
+static unsigned int nf_route_table_hook(const struct nf_hook_ops *ops,
+					struct sk_buff *skb,
+					const struct net_device *in,
+					const struct net_device *out,
+					int (*okfn)(struct sk_buff *))
+{
+	unsigned int ret;
+	u32 mark;
+	__be32 saddr, daddr;
+	u_int8_t tos;
+	const struct iphdr *iph;
+
+	/* root is playing with raw sockets. */
+	if (skb->len < sizeof(struct iphdr) ||
+	    ip_hdrlen(skb) < sizeof(struct iphdr))
+		return NF_ACCEPT;
+
+	mark = skb->mark;
+	iph = ip_hdr(skb);
+	saddr = iph->saddr;
+	daddr = iph->daddr;
+	tos = iph->tos;
+
+	ret = nft_do_chain(ops, skb, in, out, okfn);
+	if (ret != NF_DROP && ret != NF_QUEUE) {
+		iph = ip_hdr(skb);
+
+		if (iph->saddr != saddr ||
+		    iph->daddr != daddr ||
+		    skb->mark != mark ||
+		    iph->tos != tos)
+			if (ip_route_me_harder(skb, RTN_UNSPEC))
+				ret = NF_DROP;
+	}
+	return ret;
+}
+
+static struct nft_base_chain nf_chain_route_output __read_mostly = {
+	.chain	= {
+		.name		= "OUTPUT",
+		.rules		= LIST_HEAD_INIT(nf_chain_route_output.chain.rules),
+		.flags		= NFT_BASE_CHAIN | NFT_CHAIN_BUILTIN,
+	},
+	.ops	= {
+		.hook		= nf_route_table_hook,
+		.owner		= THIS_MODULE,
+		.pf		= NFPROTO_IPV4,
+		.hooknum	= NF_INET_LOCAL_OUT,
+		.priority	= NF_IP_PRI_MANGLE,
+		.priv		= &nf_chain_route_output.chain,
+	},
+};
+
+static struct nft_table nf_table_route_ipv4 __read_mostly = {
+	.name	= "route",
+	.chains	= LIST_HEAD_INIT(nf_table_route_ipv4.chains),
+};
+
+static int __init nf_table_route_init(void)
+{
+	list_add_tail(&nf_chain_route_output.chain.list,
+		      &nf_table_route_ipv4.chains);
+	return nft_register_table(&nf_table_route_ipv4, NFPROTO_IPV4);
+}
+
+static void __exit nf_table_route_exit(void)
+{
+	nft_unregister_table(&nf_table_route_ipv4, NFPROTO_IPV4);
+}
+
+module_init(nf_table_route_init);
+module_exit(nf_table_route_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_TABLE(AF_INET, "route");
diff --git a/net/ipv4/netfilter/nf_tables_ipv4.c b/net/ipv4/netfilter/nf_tables_ipv4.c
new file mode 100644
index 000000000000..63d0a3bf53d3
--- /dev/null
+++ b/net/ipv4/netfilter/nf_tables_ipv4.c
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/ip.h>
+#include <linux/netfilter_ipv4.h>
+#include <net/netfilter/nf_tables.h>
+#include <net/ip.h>
+
+static unsigned int nft_ipv4_output(const struct nf_hook_ops *ops,
+				    struct sk_buff *skb,
+				    const struct net_device *in,
+				    const struct net_device *out,
+				    int (*okfn)(struct sk_buff *))
+{
+	if (unlikely(skb->len < sizeof(struct iphdr) ||
+		     ip_hdr(skb)->ihl < sizeof(struct iphdr) / 4)) {
+		if (net_ratelimit())
+			pr_info("nf_tables_ipv4: ignoring short SOCK_RAW "
+				"packet\n");
+		return NF_ACCEPT;
+	}
+
+	return nft_do_chain(ops, skb, in, out, okfn);
+}
+
+static struct nft_af_info nft_af_ipv4 __read_mostly = {
+	.family		= NFPROTO_IPV4,
+	.nhooks		= NF_INET_NUMHOOKS,
+	.owner		= THIS_MODULE,
+	.hooks		= {
+		[NF_INET_LOCAL_OUT]	= nft_ipv4_output,
+	},
+};
+
+static int __init nf_tables_ipv4_init(void)
+{
+	return nft_register_afinfo(&nft_af_ipv4);
+}
+
+static void __exit nf_tables_ipv4_exit(void)
+{
+	nft_unregister_afinfo(&nft_af_ipv4);
+}
+
+module_init(nf_tables_ipv4_init);
+module_exit(nf_tables_ipv4_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_FAMILY(AF_INET);
diff --git a/net/ipv4/netfilter/nft_reject_ipv4.c b/net/ipv4/netfilter/nft_reject_ipv4.c
new file mode 100644
index 000000000000..b4ee8d3bb1e4
--- /dev/null
+++ b/net/ipv4/netfilter/nft_reject_ipv4.c
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables.h>
+#include <net/icmp.h>
+
+struct nft_reject {
+	enum nft_reject_types	type:8;
+	u8			icmp_code;
+};
+
+static void nft_reject_eval(const struct nft_expr *expr,
+			      struct nft_data data[NFT_REG_MAX + 1],
+			      const struct nft_pktinfo *pkt)
+{
+	struct nft_reject *priv = nft_expr_priv(expr);
+
+	switch (priv->type) {
+	case NFT_REJECT_ICMP_UNREACH:
+		icmp_send(pkt->skb, ICMP_DEST_UNREACH, priv->icmp_code, 0);
+		break;
+	case NFT_REJECT_TCP_RST:
+		break;
+	}
+
+	data[NFT_REG_VERDICT].verdict = NF_DROP;
+}
+
+static const struct nla_policy nft_reject_policy[NFTA_REJECT_MAX + 1] = {
+	[NFTA_REJECT_TYPE]		= { .type = NLA_U32 },
+	[NFTA_REJECT_ICMP_CODE]		= { .type = NLA_U8 },
+};
+
+static int nft_reject_init(const struct nft_ctx *ctx,
+			   const struct nft_expr *expr,
+			   const struct nlattr * const tb[])
+{
+	struct nft_reject *priv = nft_expr_priv(expr);
+
+	if (tb[NFTA_REJECT_TYPE] == NULL)
+		return -EINVAL;
+
+	priv->type = ntohl(nla_get_be32(tb[NFTA_REJECT_TYPE]));
+	switch (priv->type) {
+	case NFT_REJECT_ICMP_UNREACH:
+		if (tb[NFTA_REJECT_ICMP_CODE] == NULL)
+			return -EINVAL;
+		priv->icmp_code = nla_get_u8(tb[NFTA_REJECT_ICMP_CODE]);
+	case NFT_REJECT_TCP_RST:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int nft_reject_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	const struct nft_reject *priv = nft_expr_priv(expr);
+
+	if (nla_put_be32(skb, NFTA_REJECT_TYPE, priv->type))
+		goto nla_put_failure;
+
+	switch (priv->type) {
+	case NFT_REJECT_ICMP_UNREACH:
+		if (nla_put_u8(skb, NFTA_REJECT_ICMP_CODE, priv->icmp_code))
+			goto nla_put_failure;
+		break;
+	}
+
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static struct nft_expr_ops reject_ops __read_mostly = {
+	.name		= "reject",
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_reject)),
+	.owner		= THIS_MODULE,
+	.eval		= nft_reject_eval,
+	.init		= nft_reject_init,
+	.dump		= nft_reject_dump,
+	.policy		= nft_reject_policy,
+	.maxattr	= NFTA_REJECT_MAX,
+};
+
+static int __init nft_reject_module_init(void)
+{
+	return nft_register_expr(&reject_ops);
+}
+
+static void __exit nft_reject_module_exit(void)
+{
+	nft_unregister_expr(&reject_ops);
+}
+
+module_init(nft_reject_module_init);
+module_exit(nft_reject_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_EXPR("reject");
diff --git a/net/ipv6/netfilter/Kconfig b/net/ipv6/netfilter/Kconfig
index a7f842b29b67..5677e38eeca3 100644
--- a/net/ipv6/netfilter/Kconfig
+++ b/net/ipv6/netfilter/Kconfig
@@ -25,6 +25,14 @@ config NF_CONNTRACK_IPV6
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
+config NF_TABLES_IPV6
+	depends on NF_TABLES
+	tristate "IPv6 nf_tables support"
+
+config NF_TABLE_ROUTE_IPV6
+	depends on NF_TABLES_IPV6
+	tristate "IPv6 nf_tables route table support"
+
 config IP6_NF_IPTABLES
 	tristate "IP6 tables support (required for filtering)"
 	depends on INET && IPV6
diff --git a/net/ipv6/netfilter/Makefile b/net/ipv6/netfilter/Makefile
index 2b53738f798c..956af4492d10 100644
--- a/net/ipv6/netfilter/Makefile
+++ b/net/ipv6/netfilter/Makefile
@@ -23,6 +23,10 @@ obj-$(CONFIG_NF_NAT_IPV6) += nf_nat_ipv6.o
 nf_defrag_ipv6-y := nf_defrag_ipv6_hooks.o nf_conntrack_reasm.o
 obj-$(CONFIG_NF_DEFRAG_IPV6) += nf_defrag_ipv6.o
 
+# nf_tables
+obj-$(CONFIG_NF_TABLES_IPV6) += nf_tables_ipv6.o
+obj-$(CONFIG_NF_TABLE_ROUTE_IPV6) += nf_table_route_ipv6.o
+
 # matches
 obj-$(CONFIG_IP6_NF_MATCH_AH) += ip6t_ah.o
 obj-$(CONFIG_IP6_NF_MATCH_EUI64) += ip6t_eui64.o
diff --git a/net/ipv6/netfilter/nf_table_route_ipv6.c b/net/ipv6/netfilter/nf_table_route_ipv6.c
new file mode 100644
index 000000000000..48ac65c7b398
--- /dev/null
+++ b/net/ipv6/netfilter/nf_table_route_ipv6.c
@@ -0,0 +1,93 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/skbuff.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter_ipv6.h>
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables.h>
+#include <net/route.h>
+
+static unsigned int nf_route_table_hook(const struct nf_hook_ops *ops,
+					struct sk_buff *skb,
+					const struct net_device *in,
+					const struct net_device *out,
+					int (*okfn)(struct sk_buff *))
+{
+	unsigned int ret;
+	struct in6_addr saddr, daddr;
+	u_int8_t hop_limit;
+	u32 mark, flowlabel;
+
+	/* save source/dest address, mark, hoplimit, flowlabel, priority */
+	memcpy(&saddr, &ipv6_hdr(skb)->saddr, sizeof(saddr));
+	memcpy(&daddr, &ipv6_hdr(skb)->daddr, sizeof(daddr));
+	mark = skb->mark;
+	hop_limit = ipv6_hdr(skb)->hop_limit;
+
+	/* flowlabel and prio (includes version, which shouldn't change either */
+	flowlabel = *((u32 *)ipv6_hdr(skb));
+
+	ret = nft_do_chain(ops, skb, in, out, okfn);
+	if (ret != NF_DROP && ret != NF_QUEUE &&
+	    (memcmp(&ipv6_hdr(skb)->saddr, &saddr, sizeof(saddr)) ||
+	     memcmp(&ipv6_hdr(skb)->daddr, &daddr, sizeof(daddr)) ||
+	     skb->mark != mark ||
+	     ipv6_hdr(skb)->hop_limit != hop_limit ||
+	     flowlabel != *((u_int32_t *)ipv6_hdr(skb))))
+		return ip6_route_me_harder(skb) == 0 ? ret : NF_DROP;
+
+	return ret;
+}
+
+static struct nft_base_chain nf_chain_route_output __read_mostly = {
+	.chain	= {
+		.name		= "OUTPUT",
+		.rules		= LIST_HEAD_INIT(nf_chain_route_output.chain.rules),
+		.flags		= NFT_BASE_CHAIN | NFT_CHAIN_BUILTIN,
+	},
+	.ops	= {
+		.hook		= nf_route_table_hook,
+		.owner		= THIS_MODULE,
+		.pf		= NFPROTO_IPV6,
+		.hooknum	= NF_INET_LOCAL_OUT,
+		.priority	= NF_IP6_PRI_MANGLE,
+		.priv		= &nf_chain_route_output.chain,
+	},
+};
+
+static struct nft_table nf_table_route_ipv6 __read_mostly = {
+	.name	= "route",
+	.chains	= LIST_HEAD_INIT(nf_table_route_ipv6.chains),
+};
+
+static int __init nf_table_route_init(void)
+{
+	list_add_tail(&nf_chain_route_output.chain.list,
+		      &nf_table_route_ipv6.chains);
+	return nft_register_table(&nf_table_route_ipv6, NFPROTO_IPV6);
+}
+
+static void __exit nf_table_route_exit(void)
+{
+	nft_unregister_table(&nf_table_route_ipv6, NFPROTO_IPV6);
+}
+
+module_init(nf_table_route_init);
+module_exit(nf_table_route_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_TABLE(AF_INET6, "route");
diff --git a/net/ipv6/netfilter/nf_tables_ipv6.c b/net/ipv6/netfilter/nf_tables_ipv6.c
new file mode 100644
index 000000000000..e0717cea4913
--- /dev/null
+++ b/net/ipv6/netfilter/nf_tables_ipv6.c
@@ -0,0 +1,57 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/ipv6.h>
+#include <linux/netfilter_ipv6.h>
+#include <net/netfilter/nf_tables.h>
+
+static unsigned int nft_ipv6_output(const struct nf_hook_ops *ops,
+				    struct sk_buff *skb,
+				    const struct net_device *in,
+				    const struct net_device *out,
+				    int (*okfn)(struct sk_buff *))
+{
+	if (unlikely(skb->len < sizeof(struct ipv6hdr))) {
+		if (net_ratelimit())
+			pr_info("nf_tables_ipv6: ignoring short SOCK_RAW "
+				"packet\n");
+		return NF_ACCEPT;
+	}
+
+	return nft_do_chain(ops, skb, in, out, okfn);
+}
+
+static struct nft_af_info nft_af_ipv6 __read_mostly = {
+	.family		= NFPROTO_IPV6,
+	.nhooks		= NF_INET_NUMHOOKS,
+	.owner		= THIS_MODULE,
+	.hooks		= {
+		[NF_INET_LOCAL_OUT]	= nft_ipv6_output,
+	},
+};
+
+static int __init nf_tables_ipv6_init(void)
+{
+	return nft_register_afinfo(&nft_af_ipv6);
+}
+
+static void __exit nf_tables_ipv6_exit(void)
+{
+	nft_unregister_afinfo(&nft_af_ipv6);
+}
+
+module_init(nf_tables_ipv6_init);
+module_exit(nf_tables_ipv6_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_FAMILY(AF_INET6);
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index 6e839b6dff2b..c271e1af93b5 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -413,6 +413,43 @@ config NETFILTER_SYNPROXY
 
 endif # NF_CONNTRACK
 
+config NF_TABLES
+	depends on NETFILTER_NETLINK
+	tristate "Netfilter nf_tables support"
+
+config NFT_EXTHDR
+	depends on NF_TABLES
+	tristate "Netfilter nf_tables IPv6 exthdr module"
+
+config NFT_META
+	depends on NF_TABLES
+	tristate "Netfilter nf_tables meta module"
+
+config NFT_CT
+	depends on NF_TABLES
+	depends on NF_CONNTRACK
+	tristate "Netfilter nf_tables conntrack module"
+
+config NFT_SET
+	depends on NF_TABLES
+	tristate "Netfilter nf_tables set module"
+
+config NFT_HASH
+	depends on NF_TABLES
+	tristate "Netfilter nf_tables hash module"
+
+config NFT_COUNTER
+	depends on NF_TABLES
+	tristate "Netfilter nf_tables counter module"
+
+config NFT_LOG
+	depends on NF_TABLES
+	tristate "Netfilter nf_tables log module"
+
+config NFT_LIMIT
+	depends on NF_TABLES
+	tristate "Netfilter nf_tables limit module"
+
 config NETFILTER_XTABLES
 	tristate "Netfilter Xtables support (required for ip_tables)"
 	default m if NETFILTER_ADVANCED=n
diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
index c3a0a12907f6..1ca3f3932826 100644
--- a/net/netfilter/Makefile
+++ b/net/netfilter/Makefile
@@ -64,6 +64,22 @@ obj-$(CONFIG_NF_NAT_TFTP) += nf_nat_tftp.o
 # SYNPROXY
 obj-$(CONFIG_NETFILTER_SYNPROXY) += nf_synproxy_core.o
 
+# nf_tables
+nf_tables-objs += nf_tables_core.o nf_tables_api.o
+nf_tables-objs += nft_immediate.o nft_cmp.o nft_lookup.o
+nf_tables-objs += nft_bitwise.o nft_byteorder.o nft_payload.o
+
+obj-$(CONFIG_NF_TABLES)		+= nf_tables.o
+obj-$(CONFIG_NFT_EXTHDR)	+= nft_exthdr.o
+obj-$(CONFIG_NFT_META)		+= nft_meta.o
+obj-$(CONFIG_NFT_CT)		+= nft_ct.o
+obj-$(CONFIG_NFT_LIMIT)		+= nft_limit.o
+#nf_tables-objs			+= nft_meta_target.o
+obj-$(CONFIG_NFT_SET)		+= nft_set.o
+obj-$(CONFIG_NFT_HASH)		+= nft_hash.o
+obj-$(CONFIG_NFT_COUNTER)	+= nft_counter.o
+obj-$(CONFIG_NFT_LOG)		+= nft_log.o
+
 # generic X tables 
 obj-$(CONFIG_NETFILTER_XTABLES) += x_tables.o xt_tcpudp.o
 
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
new file mode 100644
index 000000000000..7d59c89c6c75
--- /dev/null
+++ b/net/netfilter/nf_tables_api.c
@@ -0,0 +1,1760 @@
+/*
+ * Copyright (c) 2007, 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/skbuff.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables_core.h>
+#include <net/netfilter/nf_tables.h>
+#include <net/sock.h>
+
+static LIST_HEAD(nf_tables_afinfo);
+static LIST_HEAD(nf_tables_expressions);
+
+/**
+ *	nft_register_afinfo - register nf_tables address family info
+ *
+ *	@afi: address family info to register
+ *
+ *	Register the address family for use with nf_tables. Returns zero on
+ *	success or a negative errno code otherwise.
+ */
+int nft_register_afinfo(struct nft_af_info *afi)
+{
+	INIT_LIST_HEAD(&afi->tables);
+	nfnl_lock(NFNL_SUBSYS_NFTABLES);
+	list_add_tail(&afi->list, &nf_tables_afinfo);
+	nfnl_unlock(NFNL_SUBSYS_NFTABLES);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(nft_register_afinfo);
+
+/**
+ *	nft_unregister_afinfo - unregister nf_tables address family info
+ *
+ *	@afi: address family info to unregister
+ *
+ *	Unregister the address family for use with nf_tables.
+ */
+void nft_unregister_afinfo(struct nft_af_info *afi)
+{
+	nfnl_lock(NFNL_SUBSYS_NFTABLES);
+	list_del(&afi->list);
+	nfnl_unlock(NFNL_SUBSYS_NFTABLES);
+}
+EXPORT_SYMBOL_GPL(nft_unregister_afinfo);
+
+static struct nft_af_info *nft_afinfo_lookup(int family)
+{
+	struct nft_af_info *afi;
+
+	list_for_each_entry(afi, &nf_tables_afinfo, list) {
+		if (afi->family == family)
+			return afi;
+	}
+	return NULL;
+}
+
+static struct nft_af_info *nf_tables_afinfo_lookup(int family, bool autoload)
+{
+	struct nft_af_info *afi;
+
+	afi = nft_afinfo_lookup(family);
+	if (afi != NULL)
+		return afi;
+#ifdef CONFIG_MODULES
+	if (autoload) {
+		nfnl_unlock(NFNL_SUBSYS_NFTABLES);
+		request_module("nft-afinfo-%u", family);
+		nfnl_lock(NFNL_SUBSYS_NFTABLES);
+		afi = nft_afinfo_lookup(family);
+		if (afi != NULL)
+			return ERR_PTR(-EAGAIN);
+	}
+#endif
+	return ERR_PTR(-EAFNOSUPPORT);
+}
+
+/*
+ * Tables
+ */
+
+static struct nft_table *nft_table_lookup(const struct nft_af_info *afi,
+					  const struct nlattr *nla)
+{
+	struct nft_table *table;
+
+	list_for_each_entry(table, &afi->tables, list) {
+		if (!nla_strcmp(nla, table->name))
+			return table;
+	}
+	return NULL;
+}
+
+static struct nft_table *nf_tables_table_lookup(const struct nft_af_info *afi,
+						const struct nlattr *nla,
+						bool autoload)
+{
+	struct nft_table *table;
+
+	if (nla == NULL)
+		return ERR_PTR(-EINVAL);
+
+	table = nft_table_lookup(afi, nla);
+	if (table != NULL)
+		return table;
+
+#ifdef CONFIG_MODULES
+	if (autoload) {
+		nfnl_unlock(NFNL_SUBSYS_NFTABLES);
+		request_module("nft-table-%u-%*.s", afi->family,
+			       nla_len(nla)-1, (const char *)nla_data(nla));
+		nfnl_lock(NFNL_SUBSYS_NFTABLES);
+		if (nft_table_lookup(afi, nla))
+			return ERR_PTR(-EAGAIN);
+	}
+#endif
+	return ERR_PTR(-ENOENT);
+}
+
+static inline u64 nf_tables_alloc_handle(struct nft_table *table)
+{
+	return ++table->hgenerator;
+}
+
+static const struct nla_policy nft_table_policy[NFTA_TABLE_MAX + 1] = {
+	[NFTA_TABLE_NAME]	= { .type = NLA_STRING },
+};
+
+static int nf_tables_fill_table_info(struct sk_buff *skb, u32 portid, u32 seq,
+				     int event, u32 flags, int family,
+				     const struct nft_table *table)
+{
+	struct nlmsghdr *nlh;
+	struct nfgenmsg *nfmsg;
+
+	event |= NFNL_SUBSYS_NFTABLES << 8;
+	nlh = nlmsg_put(skb, portid, seq, event, sizeof(struct nfgenmsg), flags);
+	if (nlh == NULL)
+		goto nla_put_failure;
+
+	nfmsg = nlmsg_data(nlh);
+	nfmsg->nfgen_family	= family;
+	nfmsg->version		= NFNETLINK_V0;
+	nfmsg->res_id		= 0;
+
+	if (nla_put_string(skb, NFTA_TABLE_NAME, table->name))
+		goto nla_put_failure;
+
+	return nlmsg_end(skb, nlh);
+
+nla_put_failure:
+	nlmsg_trim(skb, nlh);
+	return -1;
+}
+
+static int nf_tables_table_notify(const struct sk_buff *oskb,
+				  const struct nlmsghdr *nlh,
+				  const struct nft_table *table,
+				  int event, int family)
+{
+	struct sk_buff *skb;
+	u32 portid = oskb ? NETLINK_CB(oskb).portid : 0;
+	u32 seq = nlh ? nlh->nlmsg_seq : 0;
+	struct net *net = oskb ? sock_net(oskb->sk) : &init_net;
+	bool report;
+	int err;
+
+	report = nlh ? nlmsg_report(nlh) : false;
+	if (!report && !nfnetlink_has_listeners(net, NFNLGRP_NFTABLES))
+		return 0;
+
+	err = -ENOBUFS;
+	skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (skb == NULL)
+		goto err;
+
+	err = nf_tables_fill_table_info(skb, portid, seq, event, 0,
+					family, table);
+	if (err < 0) {
+		kfree_skb(skb);
+		goto err;
+	}
+
+	err = nfnetlink_send(skb, net, portid, NFNLGRP_NFTABLES, report,
+			     GFP_KERNEL);
+err:
+	if (err < 0)
+		nfnetlink_set_err(net, portid, NFNLGRP_NFTABLES, err);
+	return err;
+}
+
+static int nf_tables_dump_tables(struct sk_buff *skb,
+				 struct netlink_callback *cb)
+{
+	const struct nfgenmsg *nfmsg = nlmsg_data(cb->nlh);
+	const struct nft_af_info *afi;
+	const struct nft_table *table;
+	unsigned int idx = 0, s_idx = cb->args[0];
+	int family = nfmsg->nfgen_family;
+
+	list_for_each_entry(afi, &nf_tables_afinfo, list) {
+		if (family != NFPROTO_UNSPEC && family != afi->family)
+			continue;
+
+		list_for_each_entry(table, &afi->tables, list) {
+			if (idx < s_idx)
+				goto cont;
+			if (idx > s_idx)
+				memset(&cb->args[1], 0,
+				       sizeof(cb->args) - sizeof(cb->args[0]));
+			if (nf_tables_fill_table_info(skb,
+						      NETLINK_CB(cb->skb).portid,
+						      cb->nlh->nlmsg_seq,
+						      NFT_MSG_NEWTABLE,
+						      NLM_F_MULTI,
+						      afi->family, table) < 0)
+				goto done;
+cont:
+			idx++;
+		}
+	}
+done:
+	cb->args[0] = idx;
+	return skb->len;
+}
+
+static int nf_tables_gettable(struct sock *nlsk, struct sk_buff *skb,
+			      const struct nlmsghdr *nlh,
+			      const struct nlattr * const nla[])
+{
+	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
+	const struct nft_af_info *afi;
+	const struct nft_table *table;
+	struct sk_buff *skb2;
+	int family = nfmsg->nfgen_family;
+	int err;
+
+	if (nlh->nlmsg_flags & NLM_F_DUMP) {
+		struct netlink_dump_control c = {
+			.dump = nf_tables_dump_tables,
+		};
+		return netlink_dump_start(nlsk, skb, nlh, &c);
+	}
+
+	afi = nf_tables_afinfo_lookup(family, false);
+	if (IS_ERR(afi))
+		return PTR_ERR(afi);
+
+	table = nf_tables_table_lookup(afi, nla[NFTA_TABLE_NAME], false);
+	if (IS_ERR(table))
+		return PTR_ERR(table);
+
+	skb2 = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (!skb2)
+		return -ENOMEM;
+
+	err = nf_tables_fill_table_info(skb2, NETLINK_CB(skb).portid,
+					nlh->nlmsg_seq, NFT_MSG_NEWTABLE, 0,
+					family, table);
+	if (err < 0)
+		goto err;
+
+	return nlmsg_unicast(nlsk, skb2, NETLINK_CB(skb).portid);
+
+err:
+	kfree_skb(skb2);
+	return err;
+}
+
+static int nf_tables_newtable(struct sock *nlsk, struct sk_buff *skb,
+			      const struct nlmsghdr *nlh,
+			      const struct nlattr * const nla[])
+{
+	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
+	const struct nlattr *name;
+	struct nft_af_info *afi;
+	struct nft_table *table;
+	int family = nfmsg->nfgen_family;
+
+	afi = nf_tables_afinfo_lookup(family, true);
+	if (IS_ERR(afi))
+		return PTR_ERR(afi);
+
+	name = nla[NFTA_TABLE_NAME];
+	table = nf_tables_table_lookup(afi, name, false);
+	if (IS_ERR(table)) {
+		if (PTR_ERR(table) != -ENOENT)
+			return PTR_ERR(table);
+		table = NULL;
+	}
+
+	if (table != NULL) {
+		if (nlh->nlmsg_flags & NLM_F_EXCL)
+			return -EEXIST;
+		if (nlh->nlmsg_flags & NLM_F_REPLACE)
+			return -EOPNOTSUPP;
+		return 0;
+	}
+
+	table = kzalloc(sizeof(*table) + nla_len(name), GFP_KERNEL);
+	if (table == NULL)
+		return -ENOMEM;
+
+	nla_strlcpy(table->name, name, nla_len(name));
+	INIT_LIST_HEAD(&table->chains);
+
+	list_add_tail(&table->list, &afi->tables);
+	nf_tables_table_notify(skb, nlh, table, NFT_MSG_NEWTABLE, family);
+	return 0;
+}
+
+static int nf_tables_deltable(struct sock *nlsk, struct sk_buff *skb,
+			      const struct nlmsghdr *nlh,
+			      const struct nlattr * const nla[])
+{
+	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
+	struct nft_af_info *afi;
+	struct nft_table *table;
+	int family = nfmsg->nfgen_family;
+
+	afi = nf_tables_afinfo_lookup(family, false);
+	if (IS_ERR(afi))
+		return PTR_ERR(afi);
+
+	table = nf_tables_table_lookup(afi, nla[NFTA_TABLE_NAME], false);
+	if (IS_ERR(table))
+		return PTR_ERR(table);
+
+	if (table->flags & NFT_TABLE_BUILTIN)
+		return -EOPNOTSUPP;
+
+	if (table->use)
+		return -EBUSY;
+
+	list_del(&table->list);
+	nf_tables_table_notify(skb, nlh, table, NFT_MSG_DELTABLE, family);
+	kfree(table);
+	return 0;
+}
+
+static struct nft_table *__nf_tables_table_lookup(const struct nft_af_info *afi,
+						  const char *name)
+{
+	struct nft_table *table;
+
+	list_for_each_entry(table, &afi->tables, list) {
+		if (!strcmp(name, table->name))
+			return table;
+	}
+
+	return ERR_PTR(-ENOENT);
+}
+
+static int nf_tables_chain_notify(const struct sk_buff *oskb,
+				  const struct nlmsghdr *nlh,
+				  const struct nft_table *table,
+				  const struct nft_chain *chain,
+				  int event, int family);
+
+/**
+ *	nft_register_table - register a built-in table
+ *
+ *	@table: the table to register
+ *	@family: protocol family to register table with
+ *
+ *	Register a built-in table for use with nf_tables. Returns zero on
+ *	success or a negative errno code otherwise.
+ */
+int nft_register_table(struct nft_table *table, int family)
+{
+	struct nft_af_info *afi;
+	struct nft_table *t;
+	struct nft_chain *chain;
+	int err;
+
+	nfnl_lock(NFNL_SUBSYS_NFTABLES);
+again:
+	afi = nf_tables_afinfo_lookup(family, true);
+	if (IS_ERR(afi)) {
+		err = PTR_ERR(afi);
+		if (err == -EAGAIN)
+			goto again;
+		goto err;
+	}
+
+	t = __nf_tables_table_lookup(afi, table->name);
+	if (IS_ERR(t)) {
+		err = PTR_ERR(t);
+		if (err != -ENOENT)
+			goto err;
+		t = NULL;
+	}
+
+	if (t != NULL) {
+		err = -EEXIST;
+		goto err;
+	}
+
+	table->flags |= NFT_TABLE_BUILTIN;
+	list_add_tail(&table->list, &afi->tables);
+	nf_tables_table_notify(NULL, NULL, table, NFT_MSG_NEWTABLE, family);
+	list_for_each_entry(chain, &table->chains, list)
+		nf_tables_chain_notify(NULL, NULL, table, chain,
+				       NFT_MSG_NEWCHAIN, family);
+	err = 0;
+err:
+	nfnl_unlock(NFNL_SUBSYS_NFTABLES);
+	return err;
+}
+EXPORT_SYMBOL_GPL(nft_register_table);
+
+/**
+ *	nft_unregister_table - unregister a built-in table
+ *
+ *	@table: the table to unregister
+ *	@family: protocol family to unregister table with
+ *
+ *	Unregister a built-in table for use with nf_tables.
+ */
+void nft_unregister_table(struct nft_table *table, int family)
+{
+	struct nft_chain *chain;
+
+	nfnl_lock(NFNL_SUBSYS_NFTABLES);
+	list_del(&table->list);
+	list_for_each_entry(chain, &table->chains, list)
+		nf_tables_chain_notify(NULL, NULL, table, chain,
+				       NFT_MSG_DELCHAIN, family);
+	nf_tables_table_notify(NULL, NULL, table, NFT_MSG_DELTABLE, family);
+	nfnl_unlock(NFNL_SUBSYS_NFTABLES);
+}
+EXPORT_SYMBOL_GPL(nft_unregister_table);
+
+/*
+ * Chains
+ */
+
+static struct nft_chain *
+nf_tables_chain_lookup_byhandle(const struct nft_table *table, u64 handle)
+{
+	struct nft_chain *chain;
+
+	list_for_each_entry(chain, &table->chains, list) {
+		if (chain->handle == handle)
+			return chain;
+	}
+
+	return ERR_PTR(-ENOENT);
+}
+
+static struct nft_chain *nf_tables_chain_lookup(const struct nft_table *table,
+						const struct nlattr *nla)
+{
+	struct nft_chain *chain;
+
+	if (nla == NULL)
+		return ERR_PTR(-EINVAL);
+
+	list_for_each_entry(chain, &table->chains, list) {
+		if (!nla_strcmp(nla, chain->name))
+			return chain;
+	}
+
+	return ERR_PTR(-ENOENT);
+}
+
+static const struct nla_policy nft_chain_policy[NFTA_CHAIN_MAX + 1] = {
+	[NFTA_CHAIN_TABLE]	= { .type = NLA_STRING },
+	[NFTA_CHAIN_HANDLE]	= { .type = NLA_U64 },
+	[NFTA_CHAIN_NAME]	= { .type = NLA_STRING,
+				    .len = NFT_CHAIN_MAXNAMELEN - 1 },
+	[NFTA_CHAIN_HOOK]	= { .type = NLA_NESTED },
+};
+
+static const struct nla_policy nft_hook_policy[NFTA_HOOK_MAX + 1] = {
+	[NFTA_HOOK_HOOKNUM]	= { .type = NLA_U32 },
+	[NFTA_HOOK_PRIORITY]	= { .type = NLA_U32 },
+};
+
+static int nf_tables_fill_chain_info(struct sk_buff *skb, u32 portid, u32 seq,
+				     int event, u32 flags, int family,
+				     const struct nft_table *table,
+				     const struct nft_chain *chain)
+{
+	struct nlmsghdr *nlh;
+	struct nfgenmsg *nfmsg;
+
+	event |= NFNL_SUBSYS_NFTABLES << 8;
+	nlh = nlmsg_put(skb, portid, seq, event, sizeof(struct nfgenmsg), flags);
+	if (nlh == NULL)
+		goto nla_put_failure;
+
+	nfmsg = nlmsg_data(nlh);
+	nfmsg->nfgen_family	= family;
+	nfmsg->version		= NFNETLINK_V0;
+	nfmsg->res_id		= 0;
+
+	if (nla_put_string(skb, NFTA_CHAIN_TABLE, table->name))
+		goto nla_put_failure;
+	if (nla_put_be64(skb, NFTA_CHAIN_HANDLE, cpu_to_be64(chain->handle)))
+		goto nla_put_failure;
+	if (nla_put_string(skb, NFTA_CHAIN_NAME, chain->name))
+		goto nla_put_failure;
+
+	if (chain->flags & NFT_BASE_CHAIN) {
+		const struct nf_hook_ops *ops = &nft_base_chain(chain)->ops;
+		struct nlattr *nest = nla_nest_start(skb, NFTA_CHAIN_HOOK);
+		if (nest == NULL)
+			goto nla_put_failure;
+		if (nla_put_be32(skb, NFTA_HOOK_HOOKNUM, htonl(ops->hooknum)))
+			goto nla_put_failure;
+		if (nla_put_be32(skb, NFTA_HOOK_PRIORITY, htonl(ops->priority)))
+			goto nla_put_failure;
+		nla_nest_end(skb, nest);
+	}
+
+	return nlmsg_end(skb, nlh);
+
+nla_put_failure:
+	nlmsg_trim(skb, nlh);
+	return -1;
+}
+
+static int nf_tables_chain_notify(const struct sk_buff *oskb,
+				  const struct nlmsghdr *nlh,
+				  const struct nft_table *table,
+				  const struct nft_chain *chain,
+				  int event, int family)
+{
+	struct sk_buff *skb;
+	u32 portid = oskb ? NETLINK_CB(oskb).portid : 0;
+	struct net *net = oskb ? sock_net(oskb->sk) : &init_net;
+	u32 seq = nlh ? nlh->nlmsg_seq : 0;
+	bool report;
+	int err;
+
+	report = nlh ? nlmsg_report(nlh) : false;
+	if (!report && !nfnetlink_has_listeners(net, NFNLGRP_NFTABLES))
+		return 0;
+
+	err = -ENOBUFS;
+	skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (skb == NULL)
+		goto err;
+
+	err = nf_tables_fill_chain_info(skb, portid, seq, event, 0, family,
+					table, chain);
+	if (err < 0) {
+		kfree_skb(skb);
+		goto err;
+	}
+
+	err = nfnetlink_send(skb, net, portid, NFNLGRP_NFTABLES, report,
+			     GFP_KERNEL);
+err:
+	if (err < 0)
+		nfnetlink_set_err(net, portid, NFNLGRP_NFTABLES, err);
+	return err;
+}
+
+static int nf_tables_dump_chains(struct sk_buff *skb,
+				 struct netlink_callback *cb)
+{
+	const struct nfgenmsg *nfmsg = nlmsg_data(cb->nlh);
+	const struct nft_af_info *afi;
+	const struct nft_table *table;
+	const struct nft_chain *chain;
+	unsigned int idx = 0, s_idx = cb->args[0];
+	int family = nfmsg->nfgen_family;
+
+	list_for_each_entry(afi, &nf_tables_afinfo, list) {
+		if (family != NFPROTO_UNSPEC && family != afi->family)
+			continue;
+
+		list_for_each_entry(table, &afi->tables, list) {
+			list_for_each_entry(chain, &table->chains, list) {
+				if (idx < s_idx)
+					goto cont;
+				if (idx > s_idx)
+					memset(&cb->args[1], 0,
+					       sizeof(cb->args) - sizeof(cb->args[0]));
+				if (nf_tables_fill_chain_info(skb, NETLINK_CB(cb->skb).portid,
+							      cb->nlh->nlmsg_seq,
+							      NFT_MSG_NEWCHAIN,
+							      NLM_F_MULTI,
+							      afi->family, table, chain) < 0)
+					goto done;
+cont:
+				idx++;
+			}
+		}
+	}
+done:
+	cb->args[0] = idx;
+	return skb->len;
+}
+
+
+static int nf_tables_getchain(struct sock *nlsk, struct sk_buff *skb,
+			      const struct nlmsghdr *nlh,
+			      const struct nlattr * const nla[])
+{
+	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
+	const struct nft_af_info *afi;
+	const struct nft_table *table;
+	const struct nft_chain *chain;
+	struct sk_buff *skb2;
+	int family = nfmsg->nfgen_family;
+	int err;
+
+	if (nlh->nlmsg_flags & NLM_F_DUMP) {
+		struct netlink_dump_control c = {
+			.dump = nf_tables_dump_chains,
+		};
+		return netlink_dump_start(nlsk, skb, nlh, &c);
+	}
+
+	afi = nf_tables_afinfo_lookup(family, false);
+	if (IS_ERR(afi))
+		return PTR_ERR(afi);
+
+	table = nf_tables_table_lookup(afi, nla[NFTA_CHAIN_TABLE], false);
+	if (IS_ERR(table))
+		return PTR_ERR(table);
+
+	chain = nf_tables_chain_lookup(table, nla[NFTA_CHAIN_NAME]);
+	if (IS_ERR(chain))
+		return PTR_ERR(chain);
+
+	skb2 = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (!skb2)
+		return -ENOMEM;
+
+	err = nf_tables_fill_chain_info(skb2, NETLINK_CB(skb).portid,
+					nlh->nlmsg_seq, NFT_MSG_NEWCHAIN, 0,
+					family, table, chain);
+	if (err < 0)
+		goto err;
+
+	return nlmsg_unicast(nlsk, skb2, NETLINK_CB(skb).portid);
+
+err:
+	kfree_skb(skb2);
+	return err;
+}
+
+static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
+			      const struct nlmsghdr *nlh,
+			      const struct nlattr * const nla[])
+{
+	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
+	const struct nlattr * uninitialized_var(name);
+	const struct nft_af_info *afi;
+	struct nft_table *table;
+	struct nft_chain *chain;
+	struct nft_base_chain *basechain;
+	struct nlattr *ha[NFTA_HOOK_MAX + 1];
+	int family = nfmsg->nfgen_family;
+	u64 handle = 0;
+	int err;
+	bool create;
+
+	create = nlh->nlmsg_flags & NLM_F_CREATE ? true : false;
+
+	afi = nf_tables_afinfo_lookup(family, true);
+	if (IS_ERR(afi))
+		return PTR_ERR(afi);
+
+	table = nf_tables_table_lookup(afi, nla[NFTA_CHAIN_TABLE], create);
+	if (IS_ERR(table))
+		return PTR_ERR(table);
+
+	if (table->use == UINT_MAX)
+		return -EOVERFLOW;
+
+	chain = NULL;
+	name = nla[NFTA_CHAIN_NAME];
+
+	if (nla[NFTA_CHAIN_HANDLE]) {
+		handle = be64_to_cpu(nla_get_be64(nla[NFTA_CHAIN_HANDLE]));
+		chain = nf_tables_chain_lookup_byhandle(table, handle);
+		if (IS_ERR(chain))
+			return PTR_ERR(chain);
+	} else {
+		chain = nf_tables_chain_lookup(table, name);
+		if (IS_ERR(chain)) {
+			if (PTR_ERR(chain) != -ENOENT)
+				return PTR_ERR(chain);
+			chain = NULL;
+		}
+	}
+
+	if (chain != NULL) {
+		if (nlh->nlmsg_flags & NLM_F_EXCL)
+			return -EEXIST;
+		if (nlh->nlmsg_flags & NLM_F_REPLACE)
+			return -EOPNOTSUPP;
+
+		if (nla[NFTA_CHAIN_HANDLE] && name &&
+		    !IS_ERR(nf_tables_chain_lookup(table, nla[NFTA_CHAIN_NAME])))
+			return -EEXIST;
+
+		if (nla[NFTA_CHAIN_HANDLE] && name)
+			nla_strlcpy(chain->name, name, NFT_CHAIN_MAXNAMELEN);
+
+		goto notify;
+	}
+
+	if (nla[NFTA_CHAIN_HOOK]) {
+		struct nf_hook_ops *ops;
+
+		err = nla_parse_nested(ha, NFTA_HOOK_MAX, nla[NFTA_CHAIN_HOOK],
+				       nft_hook_policy);
+		if (err < 0)
+			return err;
+		if (ha[NFTA_HOOK_HOOKNUM] == NULL ||
+		    ha[NFTA_HOOK_PRIORITY] == NULL)
+			return -EINVAL;
+		if (ntohl(nla_get_be32(ha[NFTA_HOOK_HOOKNUM])) >= afi->nhooks)
+			return -EINVAL;
+
+		basechain = kzalloc(sizeof(*basechain), GFP_KERNEL);
+		if (basechain == NULL)
+			return -ENOMEM;
+		chain = &basechain->chain;
+
+		ops = &basechain->ops;
+		ops->pf		= family;
+		ops->owner	= afi->owner;
+		ops->hooknum	= ntohl(nla_get_be32(ha[NFTA_HOOK_HOOKNUM]));
+		ops->priority	= ntohl(nla_get_be32(ha[NFTA_HOOK_PRIORITY]));
+		ops->priv	= chain;
+		ops->hook	= nft_do_chain;
+		if (afi->hooks[ops->hooknum])
+			ops->hook = afi->hooks[ops->hooknum];
+
+		chain->flags |= NFT_BASE_CHAIN;
+	} else {
+		chain = kzalloc(sizeof(*chain), GFP_KERNEL);
+		if (chain == NULL)
+			return -ENOMEM;
+	}
+
+	INIT_LIST_HEAD(&chain->rules);
+	chain->handle = nf_tables_alloc_handle(table);
+	nla_strlcpy(chain->name, name, NFT_CHAIN_MAXNAMELEN);
+
+	list_add_tail(&chain->list, &table->chains);
+	table->use++;
+notify:
+	nf_tables_chain_notify(skb, nlh, table, chain, NFT_MSG_NEWCHAIN,
+			       family);
+	return 0;
+}
+
+static void nf_tables_rcu_chain_destroy(struct rcu_head *head)
+{
+	struct nft_chain *chain = container_of(head, struct nft_chain, rcu_head);
+
+	BUG_ON(chain->use > 0);
+
+	if (chain->flags & NFT_BASE_CHAIN)
+		kfree(nft_base_chain(chain));
+	else
+		kfree(chain);
+}
+
+static int nf_tables_delchain(struct sock *nlsk, struct sk_buff *skb,
+			      const struct nlmsghdr *nlh,
+			      const struct nlattr * const nla[])
+{
+	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
+	const struct nft_af_info *afi;
+	struct nft_table *table;
+	struct nft_chain *chain;
+	int family = nfmsg->nfgen_family;
+
+	afi = nf_tables_afinfo_lookup(family, false);
+	if (IS_ERR(afi))
+		return PTR_ERR(afi);
+
+	table = nf_tables_table_lookup(afi, nla[NFTA_CHAIN_TABLE], false);
+	if (IS_ERR(table))
+		return PTR_ERR(table);
+
+	chain = nf_tables_chain_lookup(table, nla[NFTA_CHAIN_NAME]);
+	if (IS_ERR(chain))
+		return PTR_ERR(chain);
+
+	if (chain->flags & NFT_CHAIN_BUILTIN)
+		return -EOPNOTSUPP;
+
+	if (!list_empty(&chain->rules))
+		return -EBUSY;
+
+	list_del(&chain->list);
+	table->use--;
+
+	if (chain->flags & NFT_BASE_CHAIN)
+		nf_unregister_hook(&nft_base_chain(chain)->ops);
+
+	nf_tables_chain_notify(skb, nlh, table, chain, NFT_MSG_DELCHAIN,
+			       family);
+
+	/* Make sure all rule references are gone before this is released */
+	call_rcu(&chain->rcu_head, nf_tables_rcu_chain_destroy);
+	return 0;
+}
+
+static void nft_ctx_init(struct nft_ctx *ctx,
+			 const struct nft_af_info *afi,
+			 const struct nft_table *table,
+			 const struct nft_chain *chain)
+{
+	ctx->afi   = afi;
+	ctx->table = table;
+	ctx->chain = chain;
+}
+
+/*
+ * Expressions
+ */
+
+/**
+ *	nft_register_expr - register nf_tables expr operations
+ *	@ops: expr operations
+ *
+ *	Registers the expr operations for use with nf_tables. Returns zero on
+ *	success or a negative errno code otherwise.
+ */
+int nft_register_expr(struct nft_expr_ops *ops)
+{
+	nfnl_lock(NFNL_SUBSYS_NFTABLES);
+	list_add_tail(&ops->list, &nf_tables_expressions);
+	nfnl_unlock(NFNL_SUBSYS_NFTABLES);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(nft_register_expr);
+
+/**
+ *	nft_unregister_expr - unregister nf_tables expr operations
+ *	@ops: expr operations
+ *
+ * 	Unregisters the expr operations for use with nf_tables.
+ */
+void nft_unregister_expr(struct nft_expr_ops *ops)
+{
+	nfnl_lock(NFNL_SUBSYS_NFTABLES);
+	list_del(&ops->list);
+	nfnl_unlock(NFNL_SUBSYS_NFTABLES);
+}
+EXPORT_SYMBOL_GPL(nft_unregister_expr);
+
+static const struct nft_expr_ops *__nft_expr_ops_get(struct nlattr *nla)
+{
+	const struct nft_expr_ops *ops;
+
+	list_for_each_entry(ops, &nf_tables_expressions, list) {
+		if (!nla_strcmp(nla, ops->name))
+			return ops;
+	}
+	return NULL;
+}
+
+static const struct nft_expr_ops *nft_expr_ops_get(struct nlattr *nla)
+{
+	const struct nft_expr_ops *ops;
+
+	if (nla == NULL)
+		return ERR_PTR(-EINVAL);
+
+	ops = __nft_expr_ops_get(nla);
+	if (ops != NULL && try_module_get(ops->owner))
+		return ops;
+
+#ifdef CONFIG_MODULES
+	if (ops == NULL) {
+		nfnl_unlock(NFNL_SUBSYS_NFTABLES);
+		request_module("nft-expr-%.*s",
+			       nla_len(nla), (char *)nla_data(nla));
+		nfnl_lock(NFNL_SUBSYS_NFTABLES);
+		if (__nft_expr_ops_get(nla))
+			return ERR_PTR(-EAGAIN);
+	}
+#endif
+	return ERR_PTR(-ENOENT);
+}
+
+static const struct nla_policy nft_expr_policy[NFTA_EXPR_MAX + 1] = {
+	[NFTA_EXPR_NAME]	= { .type = NLA_STRING },
+	[NFTA_EXPR_DATA]	= { .type = NLA_NESTED },
+};
+
+static int nf_tables_fill_expr_info(struct sk_buff *skb,
+				    const struct nft_expr *expr)
+{
+	if (nla_put_string(skb, NFTA_EXPR_NAME, expr->ops->name))
+		goto nla_put_failure;
+
+	if (expr->ops->dump) {
+		struct nlattr *data = nla_nest_start(skb, NFTA_EXPR_DATA);
+		if (data == NULL)
+			goto nla_put_failure;
+		if (expr->ops->dump(skb, expr) < 0)
+			goto nla_put_failure;
+		nla_nest_end(skb, data);
+	}
+
+	return skb->len;
+
+nla_put_failure:
+	return -1;
+};
+
+struct nft_expr_info {
+	const struct nft_expr_ops	*ops;
+	struct nlattr			*tb[NFTA_EXPR_MAX + 1];
+};
+
+static int nf_tables_expr_parse(const struct nlattr *nla,
+				struct nft_expr_info *info)
+{
+	const struct nft_expr_ops *ops;
+	int err;
+
+	err = nla_parse_nested(info->tb, NFTA_EXPR_MAX, nla, nft_expr_policy);
+	if (err < 0)
+		return err;
+
+	ops = nft_expr_ops_get(info->tb[NFTA_EXPR_NAME]);
+	if (IS_ERR(ops))
+		return PTR_ERR(ops);
+	info->ops = ops;
+	return 0;
+}
+
+static int nf_tables_newexpr(const struct nft_ctx *ctx,
+			     struct nft_expr_info *info,
+			     struct nft_expr *expr)
+{
+	const struct nft_expr_ops *ops = info->ops;
+	int err;
+
+	expr->ops = ops;
+	if (ops->init) {
+		struct nlattr *ma[ops->maxattr + 1];
+
+		if (info->tb[NFTA_EXPR_DATA]) {
+			err = nla_parse_nested(ma, ops->maxattr,
+					       info->tb[NFTA_EXPR_DATA],
+					       ops->policy);
+			if (err < 0)
+				goto err1;
+		} else
+			memset(ma, 0, sizeof(ma[0]) * (ops->maxattr + 1));
+
+		err = ops->init(ctx, expr, (const struct nlattr **)ma);
+		if (err < 0)
+			goto err1;
+	}
+
+	info->ops = NULL;
+	return 0;
+
+err1:
+	expr->ops = NULL;
+	return err;
+}
+
+static void nf_tables_expr_destroy(struct nft_expr *expr)
+{
+	if (expr->ops->destroy)
+		expr->ops->destroy(expr);
+	module_put(expr->ops->owner);
+}
+
+/*
+ * Rules
+ */
+
+static struct nft_rule *__nf_tables_rule_lookup(const struct nft_chain *chain,
+						u64 handle)
+{
+	struct nft_rule *rule;
+
+	// FIXME: this sucks
+	list_for_each_entry(rule, &chain->rules, list) {
+		if (handle == rule->handle)
+			return rule;
+	}
+
+	return ERR_PTR(-ENOENT);
+}
+
+static struct nft_rule *nf_tables_rule_lookup(const struct nft_chain *chain,
+					      const struct nlattr *nla)
+{
+	if (nla == NULL)
+		return ERR_PTR(-EINVAL);
+
+	return __nf_tables_rule_lookup(chain, be64_to_cpu(nla_get_be64(nla)));
+}
+
+static const struct nla_policy nft_rule_policy[NFTA_RULE_MAX + 1] = {
+	[NFTA_RULE_TABLE]	= { .type = NLA_STRING },
+	[NFTA_RULE_CHAIN]	= { .type = NLA_STRING,
+				    .len = NFT_CHAIN_MAXNAMELEN - 1 },
+	[NFTA_RULE_HANDLE]	= { .type = NLA_U64 },
+	[NFTA_RULE_EXPRESSIONS]	= { .type = NLA_NESTED },
+};
+
+static int nf_tables_fill_rule_info(struct sk_buff *skb, u32 portid, u32 seq,
+				    int event, u32 flags, int family,
+				    const struct nft_table *table,
+				    const struct nft_chain *chain,
+				    const struct nft_rule *rule)
+{
+	struct nlmsghdr *nlh;
+	struct nfgenmsg *nfmsg;
+	const struct nft_expr *expr, *next;
+	struct nlattr *list;
+
+	event |= NFNL_SUBSYS_NFTABLES << 8;
+	nlh = nlmsg_put(skb, portid, seq, event, sizeof(struct nfgenmsg),
+			flags);
+	if (nlh == NULL)
+		goto nla_put_failure;
+
+	nfmsg = nlmsg_data(nlh);
+	nfmsg->nfgen_family	= family;
+	nfmsg->version		= NFNETLINK_V0;
+	nfmsg->res_id		= 0;
+
+	if (nla_put_string(skb, NFTA_RULE_TABLE, table->name))
+		goto nla_put_failure;
+	if (nla_put_string(skb, NFTA_RULE_CHAIN, chain->name))
+		goto nla_put_failure;
+	if (nla_put_be64(skb, NFTA_RULE_HANDLE, cpu_to_be64(rule->handle)))
+		goto nla_put_failure;
+
+	list = nla_nest_start(skb, NFTA_RULE_EXPRESSIONS);
+	if (list == NULL)
+		goto nla_put_failure;
+	nft_rule_for_each_expr(expr, next, rule) {
+		struct nlattr *elem = nla_nest_start(skb, NFTA_LIST_ELEM);
+		if (elem == NULL)
+			goto nla_put_failure;
+		if (nf_tables_fill_expr_info(skb, expr) < 0)
+			goto nla_put_failure;
+		nla_nest_end(skb, elem);
+	}
+	nla_nest_end(skb, list);
+
+	return nlmsg_end(skb, nlh);
+
+nla_put_failure:
+	nlmsg_trim(skb, nlh);
+	return -1;
+}
+
+static int nf_tables_rule_notify(const struct sk_buff *oskb,
+				 const struct nlmsghdr *nlh,
+				 const struct nft_table *table,
+				 const struct nft_chain *chain,
+				 const struct nft_rule *rule,
+				 int event, u32 flags, int family)
+{
+	struct sk_buff *skb;
+	u32 portid = NETLINK_CB(oskb).portid;
+	struct net *net = oskb ? sock_net(oskb->sk) : &init_net;
+	u32 seq = nlh->nlmsg_seq;
+	bool report;
+	int err;
+
+	report = nlmsg_report(nlh);
+	if (!report && !nfnetlink_has_listeners(net, NFNLGRP_NFTABLES))
+		return 0;
+
+	err = -ENOBUFS;
+	skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (skb == NULL)
+		goto err;
+
+	err = nf_tables_fill_rule_info(skb, portid, seq, event, flags,
+				       family, table, chain, rule);
+	if (err < 0) {
+		kfree_skb(skb);
+		goto err;
+	}
+
+	err = nfnetlink_send(skb, net, portid, NFNLGRP_NFTABLES, report,
+			     GFP_KERNEL);
+err:
+	if (err < 0)
+		nfnetlink_set_err(net, portid, NFNLGRP_NFTABLES, err);
+	return err;
+}
+
+static int nf_tables_dump_rules(struct sk_buff *skb,
+				struct netlink_callback *cb)
+{
+	const struct nfgenmsg *nfmsg = nlmsg_data(cb->nlh);
+	const struct nft_af_info *afi;
+	const struct nft_table *table;
+	const struct nft_chain *chain;
+	const struct nft_rule *rule;
+	unsigned int idx = 0, s_idx = cb->args[0];
+	int family = nfmsg->nfgen_family;
+
+	list_for_each_entry(afi, &nf_tables_afinfo, list) {
+		if (family != NFPROTO_UNSPEC && family != afi->family)
+			continue;
+
+		list_for_each_entry(table, &afi->tables, list) {
+			list_for_each_entry(chain, &table->chains, list) {
+				list_for_each_entry(rule, &chain->rules, list) {
+					if (idx < s_idx)
+						goto cont;
+					if (idx > s_idx)
+						memset(&cb->args[1], 0,
+						       sizeof(cb->args) - sizeof(cb->args[0]));
+					if (nf_tables_fill_rule_info(skb, NETLINK_CB(cb->skb).portid,
+								      cb->nlh->nlmsg_seq,
+								      NFT_MSG_NEWRULE,
+								      NLM_F_MULTI | NLM_F_APPEND,
+								      afi->family, table, chain, rule) < 0)
+						goto done;
+cont:
+					idx++;
+				}
+			}
+		}
+	}
+done:
+	cb->args[0] = idx;
+	return skb->len;
+}
+
+static int nf_tables_getrule(struct sock *nlsk, struct sk_buff *skb,
+			     const struct nlmsghdr *nlh,
+			     const struct nlattr * const nla[])
+{
+	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
+	const struct nft_af_info *afi;
+	const struct nft_table *table;
+	const struct nft_chain *chain;
+	const struct nft_rule *rule;
+	struct sk_buff *skb2;
+	int family = nfmsg->nfgen_family;
+	int err;
+
+	if (nlh->nlmsg_flags & NLM_F_DUMP) {
+		struct netlink_dump_control c = {
+			.dump = nf_tables_dump_rules,
+		};
+		return netlink_dump_start(nlsk, skb, nlh, &c);
+	}
+
+	afi = nf_tables_afinfo_lookup(family, false);
+	if (IS_ERR(afi))
+		return PTR_ERR(afi);
+
+	table = nf_tables_table_lookup(afi, nla[NFTA_RULE_TABLE], false);
+	if (IS_ERR(table))
+		return PTR_ERR(table);
+
+	chain = nf_tables_chain_lookup(table, nla[NFTA_RULE_CHAIN]);
+	if (IS_ERR(chain))
+		return PTR_ERR(chain);
+
+	rule = nf_tables_rule_lookup(chain, nla[NFTA_RULE_HANDLE]);
+	if (IS_ERR(rule))
+		return PTR_ERR(rule);
+
+	skb2 = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (!skb2)
+		return -ENOMEM;
+
+	err = nf_tables_fill_rule_info(skb2, NETLINK_CB(skb).portid,
+				       nlh->nlmsg_seq, NFT_MSG_NEWRULE, 0,
+				       family, table, chain, rule);
+	if (err < 0)
+		goto err;
+
+	return nlmsg_unicast(nlsk, skb2, NETLINK_CB(skb).portid);
+
+err:
+	kfree_skb(skb2);
+	return err;
+}
+
+static void nf_tables_rcu_rule_destroy(struct rcu_head *head)
+{
+	struct nft_rule *rule = container_of(head, struct nft_rule, rcu_head);
+	struct nft_expr *expr;
+
+	/*
+	 * Careful: some expressions might not be initialized in case this
+	 * is called on error from nf_tables_newrule().
+	 */
+	expr = nft_expr_first(rule);
+	while (expr->ops && expr != nft_expr_last(rule)) {
+		nf_tables_expr_destroy(expr);
+		expr = nft_expr_next(expr);
+	}
+	kfree(rule);
+}
+
+static void nf_tables_rule_destroy(struct nft_rule *rule)
+{
+	call_rcu(&rule->rcu_head, nf_tables_rcu_rule_destroy);
+}
+
+#define NFT_RULE_MAXEXPRS	128
+
+static struct nft_expr_info *info;
+
+static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
+			     const struct nlmsghdr *nlh,
+			     const struct nlattr * const nla[])
+{
+	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
+	const struct nft_af_info *afi;
+	struct nft_table *table;
+	struct nft_chain *chain;
+	struct nft_rule *rule, *old_rule = NULL;
+	struct nft_expr *expr;
+	struct nft_ctx ctx;
+	struct nlattr *tmp;
+	unsigned int size, i, n;
+	int err, rem;
+	bool create;
+	u64 handle;
+
+	create = nlh->nlmsg_flags & NLM_F_CREATE ? true : false;
+
+	afi = nf_tables_afinfo_lookup(nfmsg->nfgen_family, create);
+	if (IS_ERR(afi))
+		return PTR_ERR(afi);
+
+	table = nf_tables_table_lookup(afi, nla[NFTA_RULE_TABLE], create);
+	if (IS_ERR(table))
+		return PTR_ERR(table);
+
+	chain = nf_tables_chain_lookup(table, nla[NFTA_RULE_CHAIN]);
+	if (IS_ERR(chain))
+		return PTR_ERR(chain);
+
+	if (nla[NFTA_RULE_HANDLE]) {
+		handle = be64_to_cpu(nla_get_be64(nla[NFTA_RULE_HANDLE]));
+		rule = __nf_tables_rule_lookup(chain, handle);
+		if (IS_ERR(rule))
+			return PTR_ERR(rule);
+
+		if (nlh->nlmsg_flags & NLM_F_EXCL)
+			return -EEXIST;
+		if (nlh->nlmsg_flags & NLM_F_REPLACE)
+			old_rule = rule;
+		else
+			return -EOPNOTSUPP;
+	} else {
+		if (!create || nlh->nlmsg_flags & NLM_F_REPLACE)
+			return -EINVAL;
+		handle = nf_tables_alloc_handle(table);
+	}
+
+	n = 0;
+	size = 0;
+	if (nla[NFTA_RULE_EXPRESSIONS]) {
+		nla_for_each_nested(tmp, nla[NFTA_RULE_EXPRESSIONS], rem) {
+			err = -EINVAL;
+			if (nla_type(tmp) != NFTA_LIST_ELEM)
+				goto err1;
+			if (n == NFT_RULE_MAXEXPRS)
+				goto err1;
+			err = nf_tables_expr_parse(tmp, &info[n]);
+			if (err < 0)
+				goto err1;
+			size += info[n].ops->size;
+			n++;
+		}
+	}
+
+	err = -ENOMEM;
+	rule = kzalloc(sizeof(*rule) + size, GFP_KERNEL);
+	if (rule == NULL)
+		goto err1;
+
+	rule->handle = handle;
+	rule->dlen   = size;
+
+	nft_ctx_init(&ctx, afi, table, chain);
+	expr = nft_expr_first(rule);
+	for (i = 0; i < n; i++) {
+		err = nf_tables_newexpr(&ctx, &info[i], expr);
+		if (err < 0)
+			goto err2;
+		expr = nft_expr_next(expr);
+	}
+
+	/* Register hook when first rule is inserted into a base chain */
+	if (list_empty(&chain->rules) && chain->flags & NFT_BASE_CHAIN) {
+		err = nf_register_hook(&nft_base_chain(chain)->ops);
+		if (err < 0)
+			goto err2;
+	}
+
+	if (nlh->nlmsg_flags & NLM_F_REPLACE) {
+		list_replace_rcu(&old_rule->list, &rule->list);
+		nf_tables_rule_destroy(old_rule);
+	} else if (nlh->nlmsg_flags & NLM_F_APPEND)
+		list_add_tail_rcu(&rule->list, &chain->rules);
+	else
+		list_add_rcu(&rule->list, &chain->rules);
+
+	nf_tables_rule_notify(skb, nlh, table, chain, rule, NFT_MSG_NEWRULE,
+			      nlh->nlmsg_flags & (NLM_F_APPEND | NLM_F_REPLACE),
+			      nfmsg->nfgen_family);
+	return 0;
+
+err2:
+	nf_tables_rule_destroy(rule);
+err1:
+	for (i = 0; i < n; i++) {
+		if (info[i].ops != NULL)
+			module_put(info[i].ops->owner);
+	}
+	return err;
+}
+
+static int nf_tables_delrule(struct sock *nlsk, struct sk_buff *skb,
+			     const struct nlmsghdr *nlh,
+			     const struct nlattr * const nla[])
+{
+	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
+	const struct nft_af_info *afi;
+	const struct nft_table *table;
+	struct nft_chain *chain;
+	struct nft_rule *rule, *tmp;
+	int family = nfmsg->nfgen_family;
+
+	afi = nf_tables_afinfo_lookup(family, false);
+	if (IS_ERR(afi))
+		return PTR_ERR(afi);
+
+	table = nf_tables_table_lookup(afi, nla[NFTA_RULE_TABLE], false);
+	if (IS_ERR(table))
+		return PTR_ERR(table);
+
+	chain = nf_tables_chain_lookup(table, nla[NFTA_RULE_CHAIN]);
+	if (IS_ERR(chain))
+		return PTR_ERR(chain);
+
+	if (nla[NFTA_RULE_HANDLE]) {
+		rule = nf_tables_rule_lookup(chain, nla[NFTA_RULE_HANDLE]);
+		if (IS_ERR(rule))
+			return PTR_ERR(rule);
+
+		/* List removal must be visible before destroying expressions */
+		list_del_rcu(&rule->list);
+
+		nf_tables_rule_notify(skb, nlh, table, chain, rule,
+				      NFT_MSG_DELRULE, 0, family);
+		nf_tables_rule_destroy(rule);
+	} else {
+		/* Remove all rules in this chain */
+		list_for_each_entry_safe(rule, tmp, &chain->rules, list) {
+			list_del_rcu(&rule->list);
+
+			nf_tables_rule_notify(skb, nlh, table, chain, rule,
+					      NFT_MSG_DELRULE, 0, family);
+			nf_tables_rule_destroy(rule);
+		}
+	}
+
+	/* Unregister hook when last rule from base chain is deleted */
+	if (list_empty(&chain->rules) && chain->flags & NFT_BASE_CHAIN)
+		nf_unregister_hook(&nft_base_chain(chain)->ops);
+
+	return 0;
+}
+
+static const struct nfnl_callback nf_tables_cb[NFT_MSG_MAX] = {
+	[NFT_MSG_NEWTABLE] = {
+		.call		= nf_tables_newtable,
+		.attr_count	= NFTA_TABLE_MAX,
+		.policy		= nft_table_policy,
+	},
+	[NFT_MSG_GETTABLE] = {
+		.call		= nf_tables_gettable,
+		.attr_count	= NFTA_TABLE_MAX,
+		.policy		= nft_table_policy,
+	},
+	[NFT_MSG_DELTABLE] = {
+		.call		= nf_tables_deltable,
+		.attr_count	= NFTA_TABLE_MAX,
+		.policy		= nft_table_policy,
+	},
+	[NFT_MSG_NEWCHAIN] = {
+		.call		= nf_tables_newchain,
+		.attr_count	= NFTA_CHAIN_MAX,
+		.policy		= nft_chain_policy,
+	},
+	[NFT_MSG_GETCHAIN] = {
+		.call		= nf_tables_getchain,
+		.attr_count	= NFTA_CHAIN_MAX,
+		.policy		= nft_chain_policy,
+	},
+	[NFT_MSG_DELCHAIN] = {
+		.call		= nf_tables_delchain,
+		.attr_count	= NFTA_CHAIN_MAX,
+		.policy		= nft_chain_policy,
+	},
+	[NFT_MSG_NEWRULE] = {
+		.call		= nf_tables_newrule,
+		.attr_count	= NFTA_RULE_MAX,
+		.policy		= nft_rule_policy,
+	},
+	[NFT_MSG_GETRULE] = {
+		.call		= nf_tables_getrule,
+		.attr_count	= NFTA_RULE_MAX,
+		.policy		= nft_rule_policy,
+	},
+	[NFT_MSG_DELRULE] = {
+		.call		= nf_tables_delrule,
+		.attr_count	= NFTA_RULE_MAX,
+		.policy		= nft_rule_policy,
+	},
+};
+
+static const struct nfnetlink_subsystem nf_tables_subsys = {
+	.name		= "nf_tables",
+	.subsys_id	= NFNL_SUBSYS_NFTABLES,
+	.cb_count	= NFT_MSG_MAX,
+	.cb		= nf_tables_cb,
+};
+
+/**
+ *	nft_validate_input_register - validate an expressions' input register
+ *
+ *	@reg: the register number
+ *
+ * 	Validate that the input register is one of the general purpose
+ * 	registers.
+ */
+int nft_validate_input_register(enum nft_registers reg)
+{
+	if (reg <= NFT_REG_VERDICT)
+		return -EINVAL;
+	if (reg > NFT_REG_MAX)
+		return -ERANGE;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(nft_validate_input_register);
+
+/**
+ *	nft_validate_output_register - validate an expressions' output register
+ *
+ *	@reg: the register number
+ *
+ * 	Validate that the output register is one of the general purpose
+ * 	registers or the verdict register.
+ */
+int nft_validate_output_register(enum nft_registers reg)
+{
+	if (reg < NFT_REG_VERDICT)
+		return -EINVAL;
+	if (reg > NFT_REG_MAX)
+		return -ERANGE;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(nft_validate_output_register);
+
+/**
+ *	nft_validate_data_load - validate an expressions' data load
+ *
+ *	@ctx: context of the expression performing the load
+ * 	@reg: the destination register number
+ * 	@data: the data to load
+ * 	@type: the data type
+ *
+ * 	Validate that a data load uses the appropriate data type for
+ * 	the destination register. A value of NULL for the data means
+ * 	that its runtime gathered data, which is always of type
+ * 	NFT_DATA_VALUE.
+ */
+int nft_validate_data_load(const struct nft_ctx *ctx, enum nft_registers reg,
+			   const struct nft_data *data,
+			   enum nft_data_types type)
+{
+	switch (reg) {
+	case NFT_REG_VERDICT:
+		if (data == NULL || type != NFT_DATA_VERDICT)
+			return -EINVAL;
+		// FIXME: do loop detection
+		return 0;
+	default:
+		if (data != NULL && type != NFT_DATA_VALUE)
+			return -EINVAL;
+		return 0;
+	}
+}
+EXPORT_SYMBOL_GPL(nft_validate_data_load);
+
+static const struct nla_policy nft_verdict_policy[NFTA_VERDICT_MAX + 1] = {
+	[NFTA_VERDICT_CODE]	= { .type = NLA_U32 },
+	[NFTA_VERDICT_CHAIN]	= { .type = NLA_STRING,
+				    .len = NFT_CHAIN_MAXNAMELEN - 1 },
+};
+
+static int nft_verdict_init(const struct nft_ctx *ctx, struct nft_data *data,
+			    struct nft_data_desc *desc, const struct nlattr *nla)
+{
+	struct nlattr *tb[NFTA_VERDICT_MAX + 1];
+	struct nft_chain *chain;
+	int err;
+
+	err = nla_parse_nested(tb, NFTA_VERDICT_MAX, nla, nft_verdict_policy);
+	if (err < 0)
+		return err;
+
+	if (!tb[NFTA_VERDICT_CODE])
+		return -EINVAL;
+	data->verdict = ntohl(nla_get_be32(tb[NFTA_VERDICT_CODE]));
+
+	switch (data->verdict) {
+	case NF_ACCEPT:
+	case NF_DROP:
+	case NF_QUEUE:
+	case NFT_CONTINUE:
+	case NFT_BREAK:
+	case NFT_RETURN:
+		desc->len = sizeof(data->verdict);
+		break;
+	case NFT_JUMP:
+	case NFT_GOTO:
+		if (!tb[NFTA_VERDICT_CHAIN])
+			return -EINVAL;
+		chain = nf_tables_chain_lookup(ctx->table,
+					       tb[NFTA_VERDICT_CHAIN]);
+		if (IS_ERR(chain))
+			return PTR_ERR(chain);
+		if (chain->flags & NFT_BASE_CHAIN)
+			return -EOPNOTSUPP;
+
+		if (ctx->chain->level + 1 > chain->level) {
+			if (ctx->chain->level + 1 == 16)
+				return -EMLINK;
+			chain->level = ctx->chain->level + 1;
+		}
+		chain->use++;
+		data->chain = chain;
+		desc->len = sizeof(data);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	desc->type = NFT_DATA_VERDICT;
+	return 0;
+}
+
+static void nft_verdict_uninit(const struct nft_data *data)
+{
+	switch (data->verdict) {
+	case NFT_JUMP:
+	case NFT_GOTO:
+		data->chain->use--;
+		break;
+	}
+}
+
+static int nft_verdict_dump(struct sk_buff *skb, const struct nft_data *data)
+{
+	struct nlattr *nest;
+
+	nest = nla_nest_start(skb, NFTA_DATA_VERDICT);
+	if (!nest)
+		goto nla_put_failure;
+
+	if (nla_put_be32(skb, NFTA_VERDICT_CODE, htonl(data->verdict)))
+		goto nla_put_failure;
+
+	switch (data->verdict) {
+	case NFT_JUMP:
+	case NFT_GOTO:
+		if (nla_put_string(skb, NFTA_VERDICT_CHAIN, data->chain->name))
+			goto nla_put_failure;
+	}
+	nla_nest_end(skb, nest);
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static int nft_value_init(const struct nft_ctx *ctx, struct nft_data *data,
+			  struct nft_data_desc *desc, const struct nlattr *nla)
+{
+	unsigned int len;
+
+	len = nla_len(nla);
+	if (len == 0)
+		return -EINVAL;
+	if (len > sizeof(data->data))
+		return -EOVERFLOW;
+
+	nla_memcpy(data->data, nla, sizeof(data->data));
+	desc->type = NFT_DATA_VALUE;
+	desc->len  = len;
+	return 0;
+}
+
+static int nft_value_dump(struct sk_buff *skb, const struct nft_data *data,
+			  unsigned int len)
+{
+	return nla_put(skb, NFTA_DATA_VALUE, len, data->data);
+}
+
+static const struct nla_policy nft_data_policy[NFTA_DATA_MAX + 1] = {
+	[NFTA_DATA_VALUE]	= { .type = NLA_BINARY,
+				    .len  = FIELD_SIZEOF(struct nft_data, data) },
+	[NFTA_DATA_VERDICT]	= { .type = NLA_NESTED },
+};
+
+/**
+ *	nft_data_init - parse nf_tables data netlink attributes
+ *
+ *	@ctx: context of the expression using the data
+ *	@data: destination struct nft_data
+ *	@desc: data description
+ *	@nla: netlink attribute containing data
+ *
+ *	Parse the netlink data attributes and initialize a struct nft_data.
+ *	The type and length of data are returned in the data description.
+ *
+ *	The caller can indicate that it only wants to accept data of type
+ *	NFT_DATA_VALUE by passing NULL for the ctx argument.
+ */
+int nft_data_init(const struct nft_ctx *ctx, struct nft_data *data,
+		  struct nft_data_desc *desc, const struct nlattr *nla)
+{
+	struct nlattr *tb[NFTA_DATA_MAX + 1];
+	int err;
+
+	err = nla_parse_nested(tb, NFTA_DATA_MAX, nla, nft_data_policy);
+	if (err < 0)
+		return err;
+
+	if (tb[NFTA_DATA_VALUE])
+		return nft_value_init(ctx, data, desc, tb[NFTA_DATA_VALUE]);
+	if (tb[NFTA_DATA_VERDICT] && ctx != NULL)
+		return nft_verdict_init(ctx, data, desc, tb[NFTA_DATA_VERDICT]);
+	return -EINVAL;
+}
+EXPORT_SYMBOL_GPL(nft_data_init);
+
+/**
+ *	nft_data_uninit - release a nft_data item
+ *
+ *	@data: struct nft_data to release
+ *	@type: type of data
+ *
+ *	Release a nft_data item. NFT_DATA_VALUE types can be silently discarded,
+ *	all others need to be released by calling this function.
+ */
+void nft_data_uninit(const struct nft_data *data, enum nft_data_types type)
+{
+	switch (type) {
+	case NFT_DATA_VALUE:
+		return;
+	case NFT_DATA_VERDICT:
+		return nft_verdict_uninit(data);
+	default:
+		WARN_ON(1);
+	}
+}
+EXPORT_SYMBOL_GPL(nft_data_uninit);
+
+int nft_data_dump(struct sk_buff *skb, int attr, const struct nft_data *data,
+		  enum nft_data_types type, unsigned int len)
+{
+	struct nlattr *nest;
+	int err;
+
+	nest = nla_nest_start(skb, attr);
+	if (nest == NULL)
+		return -1;
+
+	switch (type) {
+	case NFT_DATA_VALUE:
+		err = nft_value_dump(skb, data, len);
+		break;
+	case NFT_DATA_VERDICT:
+		err = nft_verdict_dump(skb, data);
+		break;
+	default:
+		err = -EINVAL;
+		WARN_ON(1);
+	}
+
+	nla_nest_end(skb, nest);
+	return err;
+}
+EXPORT_SYMBOL_GPL(nft_data_dump);
+
+static int __init nf_tables_module_init(void)
+{
+	int err;
+
+	info = kmalloc(sizeof(struct nft_expr_info) * NFT_RULE_MAXEXPRS,
+		       GFP_KERNEL);
+	if (info == NULL) {
+		err = -ENOMEM;
+		goto err1;
+	}
+
+	err = nf_tables_core_module_init();
+	if (err < 0)
+		goto err2;
+
+	err = nfnetlink_subsys_register(&nf_tables_subsys);
+	if (err < 0)
+		goto err3;
+
+	pr_info("nf_tables: (c) 2007-2009 Patrick McHardy <kaber@trash.net>\n");
+	return 0;
+err3:
+	nf_tables_core_module_exit();
+err2:
+	kfree(info);
+err1:
+	return err;
+}
+
+static void __exit nf_tables_module_exit(void)
+{
+	nfnetlink_subsys_unregister(&nf_tables_subsys);
+	nf_tables_core_module_exit();
+	kfree(info);
+}
+
+module_init(nf_tables_module_init);
+module_exit(nf_tables_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFNL_SUBSYS(NFNL_SUBSYS_NFTABLES);
diff --git a/net/netfilter/nf_tables_core.c b/net/netfilter/nf_tables_core.c
new file mode 100644
index 000000000000..bc7fb85d4002
--- /dev/null
+++ b/net/netfilter/nf_tables_core.c
@@ -0,0 +1,152 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/rculist.h>
+#include <linux/skbuff.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables_core.h>
+#include <net/netfilter/nf_tables.h>
+
+#define NFT_JUMP_STACK_SIZE	16
+
+unsigned int nft_do_chain(const struct nf_hook_ops *ops,
+			  struct sk_buff *skb,
+			  const struct net_device *in,
+			  const struct net_device *out,
+			  int (*okfn)(struct sk_buff *))
+{
+	const struct nft_chain *chain = ops->priv;
+	const struct nft_rule *rule;
+	const struct nft_expr *expr, *last;
+	struct nft_data data[NFT_REG_MAX + 1];
+	const struct nft_pktinfo pkt = {
+		.skb		= skb,
+		.in		= in,
+		.out		= out,
+		.hooknum	= ops->hooknum,
+	};
+	unsigned int stackptr = 0;
+	struct {
+		const struct nft_chain	*chain;
+		const struct nft_rule	*rule;
+	} jumpstack[NFT_JUMP_STACK_SIZE];
+
+do_chain:
+	rule = list_entry(&chain->rules, struct nft_rule, list);
+next_rule:
+	data[NFT_REG_VERDICT].verdict = NFT_CONTINUE;
+	list_for_each_entry_continue_rcu(rule, &chain->rules, list) {
+		nft_rule_for_each_expr(expr, last, rule) {
+			expr->ops->eval(expr, data, &pkt);
+			if (data[NFT_REG_VERDICT].verdict != NFT_CONTINUE)
+				break;
+		}
+
+		switch (data[NFT_REG_VERDICT].verdict) {
+		case NFT_BREAK:
+			data[NFT_REG_VERDICT].verdict = NFT_CONTINUE;
+			/* fall through */
+		case NFT_CONTINUE:
+			continue;
+		}
+		break;
+	}
+
+	switch (data[NFT_REG_VERDICT].verdict) {
+	case NF_ACCEPT:
+	case NF_DROP:
+	case NF_QUEUE:
+		return data[NFT_REG_VERDICT].verdict;
+	case NFT_JUMP:
+		BUG_ON(stackptr >= NFT_JUMP_STACK_SIZE);
+		jumpstack[stackptr].chain = chain;
+		jumpstack[stackptr].rule  = rule;
+		stackptr++;
+		/* fall through */
+	case NFT_GOTO:
+		chain = data[NFT_REG_VERDICT].chain;
+		goto do_chain;
+	case NFT_RETURN:
+	case NFT_CONTINUE:
+		break;
+	default:
+		WARN_ON(1);
+	}
+
+	if (stackptr > 0) {
+		stackptr--;
+		chain = jumpstack[stackptr].chain;
+		rule  = jumpstack[stackptr].rule;
+		goto next_rule;
+	}
+
+	return NF_ACCEPT;
+}
+EXPORT_SYMBOL_GPL(nft_do_chain);
+
+int __init nf_tables_core_module_init(void)
+{
+	int err;
+
+	err = nft_immediate_module_init();
+	if (err < 0)
+		goto err1;
+
+	err = nft_cmp_module_init();
+	if (err < 0)
+		goto err2;
+
+	err = nft_lookup_module_init();
+	if (err < 0)
+		goto err3;
+
+	err = nft_bitwise_module_init();
+	if (err < 0)
+		goto err4;
+
+	err = nft_byteorder_module_init();
+	if (err < 0)
+		goto err5;
+
+	err = nft_payload_module_init();
+	if (err < 0)
+		goto err6;
+
+	return 0;
+
+err6:
+	nft_byteorder_module_exit();
+err5:
+	nft_bitwise_module_exit();
+err4:
+	nft_lookup_module_exit();
+err3:
+	nft_cmp_module_exit();
+err2:
+	nft_immediate_module_exit();
+err1:
+	return err;
+}
+
+void nf_tables_core_module_exit(void)
+{
+	nft_payload_module_exit();
+	nft_byteorder_module_exit();
+	nft_bitwise_module_exit();
+	nft_lookup_module_exit();
+	nft_cmp_module_exit();
+	nft_immediate_module_exit();
+}
diff --git a/net/netfilter/nft_bitwise.c b/net/netfilter/nft_bitwise.c
new file mode 100644
index 000000000000..0f7501506367
--- /dev/null
+++ b/net/netfilter/nft_bitwise.c
@@ -0,0 +1,140 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables_core.h>
+#include <net/netfilter/nf_tables.h>
+
+struct nft_bitwise {
+	enum nft_registers	sreg:8;
+	enum nft_registers	dreg:8;
+	u8			len;
+	struct nft_data		mask;
+	struct nft_data		xor;
+};
+
+static void nft_bitwise_eval(const struct nft_expr *expr,
+			     struct nft_data data[NFT_REG_MAX + 1],
+			     const struct nft_pktinfo *pkt)
+{
+	const struct nft_bitwise *priv = nft_expr_priv(expr);
+	const struct nft_data *src = &data[priv->sreg];
+	struct nft_data *dst = &data[priv->dreg];
+	unsigned int i;
+
+	for (i = 0; i < DIV_ROUND_UP(priv->len, 4); i++) {
+		dst->data[i] = (src->data[i] & priv->mask.data[i]) ^
+			       priv->xor.data[i];
+	}
+}
+
+static const struct nla_policy nft_bitwise_policy[NFTA_BITWISE_MAX + 1] = {
+	[NFTA_BITWISE_SREG]	= { .type = NLA_U32 },
+	[NFTA_BITWISE_DREG]	= { .type = NLA_U32 },
+	[NFTA_BITWISE_LEN]	= { .type = NLA_U32 },
+	[NFTA_BITWISE_MASK]	= { .type = NLA_NESTED },
+	[NFTA_BITWISE_XOR]	= { .type = NLA_NESTED },
+};
+
+static int nft_bitwise_init(const struct nft_ctx *ctx,
+			    const struct nft_expr *expr,
+			    const struct nlattr * const tb[])
+{
+	struct nft_bitwise *priv = nft_expr_priv(expr);
+	struct nft_data_desc d1, d2;
+	int err;
+
+	if (tb[NFTA_BITWISE_SREG] == NULL ||
+	    tb[NFTA_BITWISE_DREG] == NULL ||
+	    tb[NFTA_BITWISE_LEN] == NULL ||
+	    tb[NFTA_BITWISE_MASK] == NULL ||
+	    tb[NFTA_BITWISE_XOR] == NULL)
+		return -EINVAL;
+
+	priv->sreg = ntohl(nla_get_be32(tb[NFTA_BITWISE_SREG]));
+	err = nft_validate_input_register(priv->sreg);
+	if (err < 0)
+		return err;
+
+	priv->dreg = ntohl(nla_get_be32(tb[NFTA_BITWISE_DREG]));
+	err = nft_validate_output_register(priv->dreg);
+	if (err < 0)
+		return err;
+	err = nft_validate_data_load(ctx, priv->dreg, NULL, NFT_DATA_VALUE);
+	if (err < 0)
+		return err;
+
+	priv->len = ntohl(nla_get_be32(tb[NFTA_BITWISE_LEN]));
+
+	err = nft_data_init(NULL, &priv->mask, &d1, tb[NFTA_BITWISE_MASK]);
+	if (err < 0)
+		return err;
+	if (d1.len != priv->len)
+		return -EINVAL;
+
+	err = nft_data_init(NULL, &priv->xor, &d2, tb[NFTA_BITWISE_XOR]);
+	if (err < 0)
+		return err;
+	if (d2.len != priv->len)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int nft_bitwise_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	const struct nft_bitwise *priv = nft_expr_priv(expr);
+
+	if (nla_put_be32(skb, NFTA_BITWISE_SREG, htonl(priv->sreg)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_BITWISE_DREG, htonl(priv->dreg)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_BITWISE_LEN, htonl(priv->len)))
+		goto nla_put_failure;
+
+	if (nft_data_dump(skb, NFTA_BITWISE_MASK, &priv->mask,
+			  NFT_DATA_VALUE, priv->len) < 0)
+		goto nla_put_failure;
+
+	if (nft_data_dump(skb, NFTA_BITWISE_XOR, &priv->xor,
+			  NFT_DATA_VALUE, priv->len) < 0)
+		goto nla_put_failure;
+
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static struct nft_expr_ops nft_bitwise_ops __read_mostly = {
+	.name		= "bitwise",
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_bitwise)),
+	.owner		= THIS_MODULE,
+	.eval		= nft_bitwise_eval,
+	.init		= nft_bitwise_init,
+	.dump		= nft_bitwise_dump,
+	.policy		= nft_bitwise_policy,
+	.maxattr	= NFTA_BITWISE_MAX,
+};
+
+int __init nft_bitwise_module_init(void)
+{
+	return nft_register_expr(&nft_bitwise_ops);
+}
+
+void nft_bitwise_module_exit(void)
+{
+	nft_unregister_expr(&nft_bitwise_ops);
+}
diff --git a/net/netfilter/nft_byteorder.c b/net/netfilter/nft_byteorder.c
new file mode 100644
index 000000000000..8b0657a4d17b
--- /dev/null
+++ b/net/netfilter/nft_byteorder.c
@@ -0,0 +1,167 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables_core.h>
+#include <net/netfilter/nf_tables.h>
+
+struct nft_byteorder {
+	enum nft_registers	sreg:8;
+	enum nft_registers	dreg:8;
+	enum nft_byteorder_ops	op:8;
+	u8			len;
+	u8			size;
+};
+
+static void nft_byteorder_eval(const struct nft_expr *expr,
+			       struct nft_data data[NFT_REG_MAX + 1],
+			       const struct nft_pktinfo *pkt)
+{
+	const struct nft_byteorder *priv = nft_expr_priv(expr);
+	struct nft_data *src = &data[priv->sreg], *dst = &data[priv->dreg];
+	union { u32 u32; u16 u16; } *s, *d;
+	unsigned int i;
+
+	s = (void *)src->data;
+	d = (void *)dst->data;
+
+	switch (priv->size) {
+	case 4:
+		switch (priv->op) {
+		case NFT_BYTEORDER_NTOH:
+			for (i = 0; i < priv->len / 4; i++)
+				d[i].u32 = ntohl((__force __be32)s[i].u32);
+			break;
+		case NFT_BYTEORDER_HTON:
+			for (i = 0; i < priv->len / 4; i++)
+				d[i].u32 = (__force __u32)htonl(s[i].u32);
+			break;
+		}
+		break;
+	case 2:
+		switch (priv->op) {
+		case NFT_BYTEORDER_NTOH:
+			for (i = 0; i < priv->len / 2; i++)
+				d[i].u16 = ntohs((__force __be16)s[i].u16);
+			break;
+		case NFT_BYTEORDER_HTON:
+			for (i = 0; i < priv->len / 2; i++)
+				d[i].u16 = (__force __u16)htons(s[i].u16);
+			break;
+		}
+		break;
+	}
+}
+
+static const struct nla_policy nft_byteorder_policy[NFTA_BYTEORDER_MAX + 1] = {
+	[NFTA_BYTEORDER_SREG]	= { .type = NLA_U32 },
+	[NFTA_BYTEORDER_DREG]	= { .type = NLA_U32 },
+	[NFTA_BYTEORDER_OP]	= { .type = NLA_U32 },
+	[NFTA_BYTEORDER_LEN]	= { .type = NLA_U32 },
+	[NFTA_BYTEORDER_SIZE]	= { .type = NLA_U32 },
+};
+
+static int nft_byteorder_init(const struct nft_ctx *ctx,
+			      const struct nft_expr *expr,
+			      const struct nlattr * const tb[])
+{
+	struct nft_byteorder *priv = nft_expr_priv(expr);
+	int err;
+
+	if (tb[NFTA_BYTEORDER_SREG] == NULL ||
+	    tb[NFTA_BYTEORDER_DREG] == NULL ||
+	    tb[NFTA_BYTEORDER_LEN] == NULL ||
+	    tb[NFTA_BYTEORDER_SIZE] == NULL ||
+	    tb[NFTA_BYTEORDER_OP] == NULL)
+		return -EINVAL;
+
+	priv->sreg = ntohl(nla_get_be32(tb[NFTA_BYTEORDER_SREG]));
+	err = nft_validate_input_register(priv->sreg);
+	if (err < 0)
+		return err;
+
+	priv->dreg = ntohl(nla_get_be32(tb[NFTA_BYTEORDER_DREG]));
+	err = nft_validate_output_register(priv->dreg);
+	if (err < 0)
+		return err;
+	err = nft_validate_data_load(ctx, priv->dreg, NULL, NFT_DATA_VALUE);
+	if (err < 0)
+		return err;
+
+	priv->op = ntohl(nla_get_be32(tb[NFTA_BYTEORDER_OP]));
+	switch (priv->op) {
+	case NFT_BYTEORDER_NTOH:
+	case NFT_BYTEORDER_HTON:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	priv->len = ntohl(nla_get_be32(tb[NFTA_BYTEORDER_LEN]));
+	if (priv->len == 0 || priv->len > FIELD_SIZEOF(struct nft_data, data))
+		return -EINVAL;
+
+	priv->size = ntohl(nla_get_be32(tb[NFTA_BYTEORDER_SIZE]));
+	switch (priv->size) {
+	case 2:
+	case 4:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int nft_byteorder_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	const struct nft_byteorder *priv = nft_expr_priv(expr);
+
+	if (nla_put_be32(skb, NFTA_BYTEORDER_SREG, htonl(priv->sreg)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_BYTEORDER_DREG, htonl(priv->dreg)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_BYTEORDER_OP, htonl(priv->op)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_BYTEORDER_LEN, htonl(priv->len)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_BYTEORDER_SIZE, htonl(priv->size)))
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static struct nft_expr_ops nft_byteorder_ops __read_mostly = {
+	.name		= "byteorder",
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_byteorder)),
+	.owner		= THIS_MODULE,
+	.eval		= nft_byteorder_eval,
+	.init		= nft_byteorder_init,
+	.dump		= nft_byteorder_dump,
+	.policy		= nft_byteorder_policy,
+	.maxattr	= NFTA_BYTEORDER_MAX,
+};
+
+int __init nft_byteorder_module_init(void)
+{
+	return nft_register_expr(&nft_byteorder_ops);
+}
+
+void nft_byteorder_module_exit(void)
+{
+	nft_unregister_expr(&nft_byteorder_ops);
+}
diff --git a/net/netfilter/nft_cmp.c b/net/netfilter/nft_cmp.c
new file mode 100644
index 000000000000..e734d670120a
--- /dev/null
+++ b/net/netfilter/nft_cmp.c
@@ -0,0 +1,146 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables_core.h>
+#include <net/netfilter/nf_tables.h>
+
+struct nft_cmp_expr {
+	struct nft_data		data;
+	enum nft_registers	sreg:8;
+	u8			len;
+	enum nft_cmp_ops	op:8;
+};
+
+static void nft_cmp_eval(const struct nft_expr *expr,
+			 struct nft_data data[NFT_REG_MAX + 1],
+			 const struct nft_pktinfo *pkt)
+{
+	const struct nft_cmp_expr *priv = nft_expr_priv(expr);
+	int d;
+
+	d = nft_data_cmp(&data[priv->sreg], &priv->data, priv->len);
+	switch (priv->op) {
+	case NFT_CMP_EQ:
+		if (d != 0)
+			goto mismatch;
+		break;
+	case NFT_CMP_NEQ:
+		if (d == 0)
+			goto mismatch;
+		break;
+	case NFT_CMP_LT:
+		if (d == 0)
+			goto mismatch;
+	case NFT_CMP_LTE:
+		if (d > 0)
+			goto mismatch;
+		break;
+	case NFT_CMP_GT:
+		if (d == 0)
+			goto mismatch;
+	case NFT_CMP_GTE:
+		if (d < 0)
+			goto mismatch;
+		break;
+	}
+	return;
+
+mismatch:
+	data[NFT_REG_VERDICT].verdict = NFT_BREAK;
+}
+
+static const struct nla_policy nft_cmp_policy[NFTA_CMP_MAX + 1] = {
+	[NFTA_CMP_SREG]		= { .type = NLA_U32 },
+	[NFTA_CMP_OP]		= { .type = NLA_U32 },
+	[NFTA_CMP_DATA]		= { .type = NLA_NESTED },
+};
+
+static int nft_cmp_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
+			const struct nlattr * const tb[])
+{
+	struct nft_cmp_expr *priv = nft_expr_priv(expr);
+	struct nft_data_desc desc;
+	int err;
+
+	if (tb[NFTA_CMP_SREG] == NULL ||
+	    tb[NFTA_CMP_OP] == NULL ||
+	    tb[NFTA_CMP_DATA] == NULL)
+		return -EINVAL;
+
+	priv->sreg = ntohl(nla_get_be32(tb[NFTA_CMP_SREG]));
+	err = nft_validate_input_register(priv->sreg);
+	if (err < 0)
+		return err;
+
+	priv->op = ntohl(nla_get_be32(tb[NFTA_CMP_OP]));
+	switch (priv->op) {
+	case NFT_CMP_EQ:
+	case NFT_CMP_NEQ:
+	case NFT_CMP_LT:
+	case NFT_CMP_LTE:
+	case NFT_CMP_GT:
+	case NFT_CMP_GTE:
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	err = nft_data_init(NULL, &priv->data, &desc, tb[NFTA_CMP_DATA]);
+	if (err < 0)
+		return err;
+
+	priv->len = desc.len;
+	return 0;
+}
+
+static int nft_cmp_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	const struct nft_cmp_expr *priv = nft_expr_priv(expr);
+
+	if (nla_put_be32(skb, NFTA_CMP_SREG, htonl(priv->sreg)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_CMP_OP, htonl(priv->op)))
+		goto nla_put_failure;
+
+	if (nft_data_dump(skb, NFTA_CMP_DATA, &priv->data,
+			  NFT_DATA_VALUE, priv->len) < 0)
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static struct nft_expr_ops nft_cmp_ops __read_mostly = {
+	.name		= "cmp",
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_cmp_expr)),
+	.owner		= THIS_MODULE,
+	.eval		= nft_cmp_eval,
+	.init		= nft_cmp_init,
+	.dump		= nft_cmp_dump,
+	.policy		= nft_cmp_policy,
+	.maxattr	= NFTA_CMP_MAX,
+};
+
+int __init nft_cmp_module_init(void)
+{
+	return nft_register_expr(&nft_cmp_ops);
+}
+
+void nft_cmp_module_exit(void)
+{
+	nft_unregister_expr(&nft_cmp_ops);
+}
diff --git a/net/netfilter/nft_counter.c b/net/netfilter/nft_counter.c
new file mode 100644
index 000000000000..33c5d36819bb
--- /dev/null
+++ b/net/netfilter/nft_counter.c
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/seqlock.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables.h>
+
+struct nft_counter {
+	seqlock_t	lock;
+	u64		bytes;
+	u64		packets;
+};
+
+static void nft_counter_eval(const struct nft_expr *expr,
+			     struct nft_data data[NFT_REG_MAX + 1],
+			     const struct nft_pktinfo *pkt)
+{
+	struct nft_counter *priv = nft_expr_priv(expr);
+
+	write_seqlock_bh(&priv->lock);
+	priv->bytes += pkt->skb->len;
+	priv->packets++;
+	write_sequnlock_bh(&priv->lock);
+}
+
+static int nft_counter_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	struct nft_counter *priv = nft_expr_priv(expr);
+	unsigned int seq;
+	u64 bytes;
+	u64 packets;
+
+	do {
+		seq = read_seqbegin(&priv->lock);
+		bytes	= priv->bytes;
+		packets	= priv->packets;
+	} while (read_seqretry(&priv->lock, seq));
+
+	if (nla_put_be64(skb, NFTA_COUNTER_BYTES, cpu_to_be64(bytes)))
+		goto nla_put_failure;
+	if (nla_put_be64(skb, NFTA_COUNTER_PACKETS, cpu_to_be64(packets)))
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static const struct nla_policy nft_counter_policy[NFTA_COUNTER_MAX + 1] = {
+	[NFTA_COUNTER_PACKETS]	= { .type = NLA_U64 },
+	[NFTA_COUNTER_BYTES]	= { .type = NLA_U64 },
+};
+
+static int nft_counter_init(const struct nft_ctx *ctx,
+			    const struct nft_expr *expr,
+			    const struct nlattr * const tb[])
+{
+	struct nft_counter *priv = nft_expr_priv(expr);
+
+	if (tb[NFTA_COUNTER_PACKETS])
+	        priv->packets = be64_to_cpu(nla_get_be64(tb[NFTA_COUNTER_PACKETS]));
+	if (tb[NFTA_COUNTER_BYTES])
+		priv->bytes = be64_to_cpu(nla_get_be64(tb[NFTA_COUNTER_BYTES]));
+
+	seqlock_init(&priv->lock);
+	return 0;
+}
+
+static struct nft_expr_ops nft_counter_ops __read_mostly = {
+	.name		= "counter",
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_counter)),
+	.policy		= nft_counter_policy,
+	.maxattr	= NFTA_COUNTER_MAX,
+	.owner		= THIS_MODULE,
+	.eval		= nft_counter_eval,
+	.init		= nft_counter_init,
+	.dump		= nft_counter_dump,
+};
+
+static int __init nft_counter_module_init(void)
+{
+	return nft_register_expr(&nft_counter_ops);
+}
+
+static void __exit nft_counter_module_exit(void)
+{
+	nft_unregister_expr(&nft_counter_ops);
+}
+
+module_init(nft_counter_module_init);
+module_exit(nft_counter_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_EXPR("counter");
diff --git a/net/netfilter/nft_ct.c b/net/netfilter/nft_ct.c
new file mode 100644
index 000000000000..a1756d678226
--- /dev/null
+++ b/net/netfilter/nft_ct.c
@@ -0,0 +1,252 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables.h>
+#include <net/netfilter/nf_conntrack.h>
+#include <net/netfilter/nf_conntrack_tuple.h>
+#include <net/netfilter/nf_conntrack_helper.h>
+
+struct nft_ct {
+	enum nft_ct_keys	key:8;
+	enum ip_conntrack_dir	dir:8;
+	enum nft_registers	dreg:8;
+	uint8_t			family;
+};
+
+static void nft_ct_eval(const struct nft_expr *expr,
+			struct nft_data data[NFT_REG_MAX + 1],
+			const struct nft_pktinfo *pkt)
+{
+	const struct nft_ct *priv = nft_expr_priv(expr);
+	struct nft_data *dest = &data[priv->dreg];
+	enum ip_conntrack_info ctinfo;
+	const struct nf_conn *ct;
+	const struct nf_conn_help *help;
+	const struct nf_conntrack_tuple *tuple;
+	const struct nf_conntrack_helper *helper;
+	long diff;
+	unsigned int state;
+
+	ct = nf_ct_get(pkt->skb, &ctinfo);
+
+	switch (priv->key) {
+	case NFT_CT_STATE:
+		if (ct == NULL)
+			state = NF_CT_STATE_INVALID_BIT;
+		else if (nf_ct_is_untracked(ct))
+			state = NF_CT_STATE_UNTRACKED_BIT;
+		else
+			state = NF_CT_STATE_BIT(ctinfo);
+		dest->data[0] = state;
+		return;
+	}
+
+	if (ct == NULL)
+		goto err;
+
+	switch (priv->key) {
+	case NFT_CT_DIRECTION:
+		dest->data[0] = CTINFO2DIR(ctinfo);
+		return;
+	case NFT_CT_STATUS:
+		dest->data[0] = ct->status;
+		return;
+#ifdef CONFIG_NF_CONNTRACK_MARK
+	case NFT_CT_MARK:
+		dest->data[0] = ct->mark;
+		return;
+#endif
+#ifdef CONFIG_NF_CONNTRACK_SECMARK
+	case NFT_CT_SECMARK:
+		dest->data[0] = ct->secmark;
+		return;
+#endif
+	case NFT_CT_EXPIRATION:
+		diff = (long)jiffies - (long)ct->timeout.expires;
+		if (diff < 0)
+			diff = 0;
+		dest->data[0] = jiffies_to_msecs(diff);
+		return;
+	case NFT_CT_HELPER:
+		if (ct->master == NULL)
+			goto err;
+		help = nfct_help(ct->master);
+		if (help == NULL)
+			goto err;
+		helper = rcu_dereference(help->helper);
+		if (helper == NULL)
+			goto err;
+		if (strlen(helper->name) >= sizeof(dest->data))
+			goto err;
+		strncpy((char *)dest->data, helper->name, sizeof(dest->data));
+		return;
+	}
+
+	tuple = &ct->tuplehash[priv->dir].tuple;
+	switch (priv->key) {
+	case NFT_CT_L3PROTOCOL:
+		dest->data[0] = nf_ct_l3num(ct);
+		return;
+	case NFT_CT_SRC:
+		memcpy(dest->data, tuple->src.u3.all,
+		       nf_ct_l3num(ct) == NFPROTO_IPV4 ? 4 : 16);
+		return;
+	case NFT_CT_DST:
+		memcpy(dest->data, tuple->dst.u3.all,
+		       nf_ct_l3num(ct) == NFPROTO_IPV4 ? 4 : 16);
+		return;
+	case NFT_CT_PROTOCOL:
+		dest->data[0] = nf_ct_protonum(ct);
+		return;
+	case NFT_CT_PROTO_SRC:
+		dest->data[0] = (__force __u16)tuple->src.u.all;
+		return;
+	case NFT_CT_PROTO_DST:
+		dest->data[0] = (__force __u16)tuple->dst.u.all;
+		return;
+	}
+	return;
+err:
+	data[NFT_REG_VERDICT].verdict = NFT_BREAK;
+}
+
+static const struct nla_policy nft_ct_policy[NFTA_CT_MAX + 1] = {
+	[NFTA_CT_DREG]		= { .type = NLA_U32 },
+	[NFTA_CT_KEY]		= { .type = NLA_U32 },
+	[NFTA_CT_DIRECTION]	= { .type = NLA_U8 },
+};
+
+static int nft_ct_init(const struct nft_ctx *ctx,
+		       const struct nft_expr *expr,
+		       const struct nlattr * const tb[])
+{
+	struct nft_ct *priv = nft_expr_priv(expr);
+	int err;
+
+	if (tb[NFTA_CT_DREG] == NULL ||
+	    tb[NFTA_CT_KEY] == NULL)
+		return -EINVAL;
+
+	priv->key = ntohl(nla_get_be32(tb[NFTA_CT_KEY]));
+	if (tb[NFTA_CT_DIRECTION] != NULL) {
+		priv->dir = nla_get_u8(tb[NFTA_CT_DIRECTION]);
+		switch (priv->dir) {
+		case IP_CT_DIR_ORIGINAL:
+		case IP_CT_DIR_REPLY:
+			break;
+		default:
+			return -EINVAL;
+		}
+	}
+
+	switch (priv->key) {
+	case NFT_CT_STATE:
+	case NFT_CT_DIRECTION:
+	case NFT_CT_STATUS:
+#ifdef CONFIG_NF_CONNTRACK_MARK
+	case NFT_CT_MARK:
+#endif
+#ifdef CONFIG_NF_CONNTRACK_SECMARK
+	case NFT_CT_SECMARK:
+#endif
+	case NFT_CT_EXPIRATION:
+	case NFT_CT_HELPER:
+		if (tb[NFTA_CT_DIRECTION] != NULL)
+			return -EINVAL;
+		break;
+	case NFT_CT_PROTOCOL:
+	case NFT_CT_SRC:
+	case NFT_CT_DST:
+	case NFT_CT_PROTO_SRC:
+	case NFT_CT_PROTO_DST:
+		if (tb[NFTA_CT_DIRECTION] == NULL)
+			return -EINVAL;
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	err = nf_ct_l3proto_try_module_get(ctx->afi->family);
+	if (err < 0)
+		return err;
+	priv->family = ctx->afi->family;
+
+	priv->dreg = ntohl(nla_get_be32(tb[NFTA_CT_DREG]));
+	err = nft_validate_output_register(priv->dreg);
+	if (err < 0)
+		goto err1;
+
+	err = nft_validate_data_load(ctx, priv->dreg, NULL, NFT_DATA_VALUE);
+	if (err < 0)
+		goto err1;
+	return 0;
+
+err1:
+	nf_ct_l3proto_module_put(ctx->afi->family);
+	return err;
+}
+
+static void nft_ct_destroy(const struct nft_expr *expr)
+{
+	struct nft_ct *priv = nft_expr_priv(expr);
+
+	nf_ct_l3proto_module_put(priv->family);
+}
+
+static int nft_ct_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	const struct nft_ct *priv = nft_expr_priv(expr);
+
+	if (nla_put_be32(skb, NFTA_CT_DREG, htonl(priv->dreg)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_CT_KEY, htonl(priv->key)))
+		goto nla_put_failure;
+	if (nla_put_u8(skb, NFTA_CT_DIRECTION, priv->dir))
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static struct nft_expr_ops nft_ct_ops __read_mostly = {
+	.name		= "ct",
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_ct)),
+	.owner		= THIS_MODULE,
+	.eval		= nft_ct_eval,
+	.init		= nft_ct_init,
+	.destroy	= nft_ct_destroy,
+	.dump		= nft_ct_dump,
+	.policy		= nft_ct_policy,
+	.maxattr	= NFTA_CT_MAX,
+};
+
+static int __init nft_ct_module_init(void)
+{
+	return nft_register_expr(&nft_ct_ops);
+}
+
+static void __exit nft_ct_module_exit(void)
+{
+	nft_unregister_expr(&nft_ct_ops);
+}
+
+module_init(nft_ct_module_init);
+module_exit(nft_ct_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_EXPR("ct");
diff --git a/net/netfilter/nft_expr_template.c b/net/netfilter/nft_expr_template.c
new file mode 100644
index 000000000000..9fc8eb308193
--- /dev/null
+++ b/net/netfilter/nft_expr_template.c
@@ -0,0 +1,88 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables.h>
+
+struct nft_template {
+
+};
+
+static void nft_template_eval(const struct nft_expr *expr,
+			      struct nft_data data[NFT_REG_MAX + 1],
+			      const struct nft_pktinfo *pkt)
+{
+	struct nft_template *priv = nft_expr_priv(expr);
+
+}
+
+static const struct nla_policy nft_template_policy[NFTA_TEMPLATE_MAX + 1] = {
+	[NFTA_TEMPLATE_ATTR]		= { .type = NLA_U32 },
+};
+
+static int nft_template_init(const struct nft_ctx *ctx,
+			   const struct nft_expr *expr,
+			   const struct nlattr *tb[])
+{
+	struct nft_template *priv = nft_expr_priv(expr);
+
+	return 0;
+}
+
+static void nft_template_destroy(const struct nft_ctx *ctx,
+			       const struct nft_expr *expr)
+{
+	struct nft_template *priv = nft_expr_priv(expr);
+
+}
+
+static int nft_template_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	const struct nft_template *priv = nft_expr_priv(expr);
+
+	NLA_PUT_BE32(skb, NFTA_TEMPLATE_ATTR, priv->field);
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static struct nft_expr_ops template_ops __read_mostly = {
+	.name		= "template",
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_template)),
+	.owner		= THIS_MODULE,
+	.eval		= nft_template_eval,
+	.init		= nft_template_init,
+	.destroy	= nft_template_destroy,
+	.dump		= nft_template_dump,
+	.policy		= nft_template_policy,
+	.maxattr	= NFTA_TEMPLATE_MAX,
+};
+
+static int __init nft_template_module_init(void)
+{
+	return nft_register_expr(&template_ops);
+}
+
+static void __exit nft_template_module_exit(void)
+{
+	nft_unregister_expr(&template_ops);
+}
+
+module_init(nft_template_module_init);
+module_exit(nft_template_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_EXPR("template");
diff --git a/net/netfilter/nft_exthdr.c b/net/netfilter/nft_exthdr.c
new file mode 100644
index 000000000000..21c6a6b7b662
--- /dev/null
+++ b/net/netfilter/nft_exthdr.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables.h>
+// FIXME:
+#include <net/ipv6.h>
+
+struct nft_exthdr {
+	u8			type;
+	u8			offset;
+	u8			len;
+	enum nft_registers	dreg:8;
+};
+
+static void nft_exthdr_eval(const struct nft_expr *expr,
+			    struct nft_data data[NFT_REG_MAX + 1],
+			    const struct nft_pktinfo *pkt)
+{
+	struct nft_exthdr *priv = nft_expr_priv(expr);
+	struct nft_data *dest = &data[priv->dreg];
+	unsigned int offset;
+	int err;
+
+	err = ipv6_find_hdr(pkt->skb, &offset, priv->type, NULL, NULL);
+	if (err < 0)
+		goto err;
+	offset += priv->offset;
+
+	if (skb_copy_bits(pkt->skb, offset, dest->data, priv->len) < 0)
+		goto err;
+	return;
+err:
+	data[NFT_REG_VERDICT].verdict = NFT_BREAK;
+}
+
+static const struct nla_policy nft_exthdr_policy[NFTA_EXTHDR_MAX + 1] = {
+	[NFTA_EXTHDR_DREG]		= { .type = NLA_U32 },
+	[NFTA_EXTHDR_TYPE]		= { .type = NLA_U8 },
+	[NFTA_EXTHDR_OFFSET]		= { .type = NLA_U32 },
+	[NFTA_EXTHDR_LEN]		= { .type = NLA_U32 },
+};
+
+static int nft_exthdr_init(const struct nft_ctx *ctx,
+			   const struct nft_expr *expr,
+			   const struct nlattr * const tb[])
+{
+	struct nft_exthdr *priv = nft_expr_priv(expr);
+	int err;
+
+	if (tb[NFTA_EXTHDR_DREG] == NULL ||
+	    tb[NFTA_EXTHDR_TYPE] == NULL ||
+	    tb[NFTA_EXTHDR_OFFSET] == NULL ||
+	    tb[NFTA_EXTHDR_LEN] == NULL)
+		return -EINVAL;
+
+	priv->type   = nla_get_u8(tb[NFTA_EXTHDR_TYPE]);
+	priv->offset = ntohl(nla_get_be32(tb[NFTA_EXTHDR_OFFSET]));
+	priv->len    = ntohl(nla_get_be32(tb[NFTA_EXTHDR_LEN]));
+	if (priv->len == 0 ||
+	    priv->len > FIELD_SIZEOF(struct nft_data, data))
+		return -EINVAL;
+
+	priv->dreg = ntohl(nla_get_be32(tb[NFTA_EXTHDR_DREG]));
+	err = nft_validate_output_register(priv->dreg);
+	if (err < 0)
+		return err;
+	return nft_validate_data_load(ctx, priv->dreg, NULL, NFT_DATA_VALUE);
+}
+
+static int nft_exthdr_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	const struct nft_exthdr *priv = nft_expr_priv(expr);
+
+	if (nla_put_be32(skb, NFTA_EXTHDR_DREG, htonl(priv->dreg)))
+		goto nla_put_failure;
+	if (nla_put_u8(skb, NFTA_EXTHDR_TYPE, priv->type))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_EXTHDR_OFFSET, htonl(priv->offset)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_EXTHDR_LEN, htonl(priv->len)))
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static struct nft_expr_ops exthdr_ops __read_mostly = {
+	.name		= "exthdr",
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_exthdr)),
+	.owner		= THIS_MODULE,
+	.eval		= nft_exthdr_eval,
+	.init		= nft_exthdr_init,
+	.dump		= nft_exthdr_dump,
+	.policy		= nft_exthdr_policy,
+	.maxattr	= NFTA_EXTHDR_MAX,
+};
+
+static int __init nft_exthdr_module_init(void)
+{
+	return nft_register_expr(&exthdr_ops);
+}
+
+static void __exit nft_exthdr_module_exit(void)
+{
+	nft_unregister_expr(&exthdr_ops);
+}
+
+module_init(nft_exthdr_module_init);
+module_exit(nft_exthdr_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_EXPR("exthdr");
diff --git a/net/netfilter/nft_hash.c b/net/netfilter/nft_hash.c
new file mode 100644
index 000000000000..67cc502881f1
--- /dev/null
+++ b/net/netfilter/nft_hash.c
@@ -0,0 +1,348 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/list.h>
+#include <linux/jhash.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables.h>
+
+struct nft_hash {
+	struct hlist_head	*hash;
+	unsigned int		hsize;
+	enum nft_registers	sreg:8;
+	enum nft_registers	dreg:8;
+	u8			klen;
+	u8			dlen;
+	u16			flags;
+};
+
+struct nft_hash_elem {
+	struct hlist_node	hnode;
+	struct nft_data		key;
+	struct nft_data		data[];
+};
+
+static u32 nft_hash_rnd __read_mostly;
+static bool nft_hash_rnd_initted __read_mostly;
+
+static unsigned int nft_hash_data(const struct nft_data *data,
+				  unsigned int hsize, unsigned int len)
+{
+	unsigned int h;
+
+	// FIXME: can we reasonably guarantee the upper bits are fixed?
+	h = jhash2(data->data, len >> 2, nft_hash_rnd);
+	return ((u64)h * hsize) >> 32;
+}
+
+static void nft_hash_eval(const struct nft_expr *expr,
+			  struct nft_data data[NFT_REG_MAX + 1],
+			  const struct nft_pktinfo *pkt)
+{
+	const struct nft_hash *priv = nft_expr_priv(expr);
+	const struct nft_hash_elem *elem;
+	const struct nft_data *key = &data[priv->sreg];
+	unsigned int h;
+
+	h = nft_hash_data(key, priv->hsize, priv->klen);
+	hlist_for_each_entry(elem, &priv->hash[h], hnode) {
+		if (nft_data_cmp(&elem->key, key, priv->klen))
+			continue;
+		if (priv->flags & NFT_HASH_MAP)
+			nft_data_copy(&data[priv->dreg], elem->data);
+		return;
+	}
+	data[NFT_REG_VERDICT].verdict = NFT_BREAK;
+}
+
+static void nft_hash_elem_destroy(const struct nft_expr *expr,
+				  struct nft_hash_elem *elem)
+{
+	const struct nft_hash *priv = nft_expr_priv(expr);
+
+	nft_data_uninit(&elem->key, NFT_DATA_VALUE);
+	if (priv->flags & NFT_HASH_MAP)
+		nft_data_uninit(elem->data, nft_dreg_to_type(priv->dreg));
+	kfree(elem);
+}
+
+static const struct nla_policy nft_he_policy[NFTA_HE_MAX + 1] = {
+	[NFTA_HE_KEY]		= { .type = NLA_NESTED },
+	[NFTA_HE_DATA]		= { .type = NLA_NESTED },
+};
+
+static int nft_hash_elem_init(const struct nft_ctx *ctx,
+			      const struct nft_expr *expr,
+			      const struct nlattr *nla,
+			      struct nft_hash_elem **new)
+{
+	struct nft_hash *priv = nft_expr_priv(expr);
+	struct nlattr *tb[NFTA_HE_MAX + 1];
+	struct nft_hash_elem *elem;
+	struct nft_data_desc d1, d2;
+	unsigned int size;
+	int err;
+
+	err = nla_parse_nested(tb, NFTA_HE_MAX, nla, nft_he_policy);
+	if (err < 0)
+		return err;
+
+	if (tb[NFTA_HE_KEY] == NULL)
+		return -EINVAL;
+	size = sizeof(*elem);
+
+	if (priv->flags & NFT_HASH_MAP) {
+		if (tb[NFTA_HE_DATA] == NULL)
+			return -EINVAL;
+		size += sizeof(elem->data[0]);
+	} else {
+		if (tb[NFTA_HE_DATA] != NULL)
+			return -EINVAL;
+	}
+
+	elem = kzalloc(size, GFP_KERNEL);
+	if (elem == NULL)
+		return -ENOMEM;
+
+	err = nft_data_init(ctx, &elem->key, &d1, tb[NFTA_HE_KEY]);
+	if (err < 0)
+		goto err1;
+	err = -EINVAL;
+	if (d1.type != NFT_DATA_VALUE || d1.len != priv->klen)
+		goto err2;
+
+	if (tb[NFTA_HE_DATA] != NULL) {
+		err = nft_data_init(ctx, elem->data, &d2, tb[NFTA_HE_DATA]);
+		if (err < 0)
+			goto err2;
+		err = nft_validate_data_load(ctx, priv->dreg, elem->data, d2.type);
+		if (err < 0)
+			goto err3;
+	}
+
+	*new = elem;
+	return 0;
+
+err3:
+	nft_data_uninit(elem->data, d2.type);
+err2:
+	nft_data_uninit(&elem->key, d1.type);
+err1:
+	kfree(elem);
+	return err;
+}
+
+static int nft_hash_elem_dump(struct sk_buff *skb, const struct nft_expr *expr,
+			      const struct nft_hash_elem *elem)
+
+{
+	const struct nft_hash *priv = nft_expr_priv(expr);
+	struct nlattr *nest;
+
+	nest = nla_nest_start(skb, NFTA_LIST_ELEM);
+	if (nest == NULL)
+		goto nla_put_failure;
+
+	if (nft_data_dump(skb, NFTA_HE_KEY, &elem->key,
+			  NFT_DATA_VALUE, priv->klen) < 0)
+		goto nla_put_failure;
+
+	if (priv->flags & NFT_HASH_MAP) {
+		if (nft_data_dump(skb, NFTA_HE_DATA, elem->data,
+				  NFT_DATA_VALUE, priv->dlen) < 0)
+			goto nla_put_failure;
+	}
+
+	nla_nest_end(skb, nest);
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static void nft_hash_destroy(const struct nft_ctx *ctx,
+			     const struct nft_expr *expr)
+{
+	const struct nft_hash *priv = nft_expr_priv(expr);
+	const struct hlist_node *next;
+	struct nft_hash_elem *elem;
+	unsigned int i;
+
+	for (i = 0; i < priv->hsize; i++) {
+		hlist_for_each_entry_safe(elem, next, &priv->hash[i], hnode) {
+			hlist_del(&elem->hnode);
+			nft_hash_elem_destroy(expr, elem);
+		}
+	}
+	kfree(priv->hash);
+}
+
+static const struct nla_policy nft_hash_policy[NFTA_HASH_MAX + 1] = {
+	[NFTA_HASH_FLAGS]	= { .type = NLA_U32 },
+	[NFTA_HASH_SREG]	= { .type = NLA_U32 },
+	[NFTA_HASH_DREG]	= { .type = NLA_U32 },
+	[NFTA_HASH_KLEN]	= { .type = NLA_U32 },
+	[NFTA_HASH_ELEMENTS]	= { .type = NLA_NESTED },
+};
+
+static int nft_hash_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
+			 const struct nlattr * const tb[])
+{
+	struct nft_hash *priv = nft_expr_priv(expr);
+	struct nft_hash_elem *elem, *uninitialized_var(new);
+	const struct nlattr *nla;
+	unsigned int cnt, i;
+	unsigned int h;
+	int err, rem;
+
+	if (unlikely(!nft_hash_rnd_initted)) {
+		get_random_bytes(&nft_hash_rnd, 4);
+		nft_hash_rnd_initted = true;
+	}
+
+	if (tb[NFTA_HASH_SREG] == NULL ||
+	    tb[NFTA_HASH_KLEN] == NULL ||
+	    tb[NFTA_HASH_ELEMENTS] == NULL)
+		return -EINVAL;
+
+	if (tb[NFTA_HASH_FLAGS] != NULL) {
+		priv->flags = ntohl(nla_get_be32(tb[NFTA_HASH_FLAGS]));
+		if (priv->flags & ~NFT_HASH_MAP)
+			return -EINVAL;
+	}
+
+	priv->sreg = ntohl(nla_get_be32(tb[NFTA_HASH_SREG]));
+	err = nft_validate_input_register(priv->sreg);
+	if (err < 0)
+		return err;
+
+	if (tb[NFTA_HASH_DREG] != NULL) {
+		if (!(priv->flags & NFT_HASH_MAP))
+			return -EINVAL;
+		priv->dreg = ntohl(nla_get_be32(tb[NFTA_HASH_DREG]));
+		err = nft_validate_output_register(priv->dreg);
+		if (err < 0)
+			return err;
+	}
+
+	priv->klen = ntohl(nla_get_be32(tb[NFTA_HASH_KLEN]));
+	if (priv->klen == 0)
+		return -EINVAL;
+
+	cnt = 0;
+	nla_for_each_nested(nla, tb[NFTA_HASH_ELEMENTS], rem) {
+		if (nla_type(nla) != NFTA_LIST_ELEM)
+			return -EINVAL;
+		cnt++;
+	}
+
+	/* Aim for a load factor of 0.75 */
+	cnt = cnt * 4 / 3;
+
+	priv->hash = kcalloc(cnt, sizeof(struct hlist_head), GFP_KERNEL);
+	if (priv->hash == NULL)
+		return -ENOMEM;
+	priv->hsize = cnt;
+
+	for (i = 0; i < cnt; i++)
+		INIT_HLIST_HEAD(&priv->hash[i]);
+
+	err = -ENOMEM;
+	nla_for_each_nested(nla, tb[NFTA_HASH_ELEMENTS], rem) {
+		err = nft_hash_elem_init(ctx, expr, nla, &new);
+		if (err < 0)
+			goto err1;
+
+		h = nft_hash_data(&new->key, priv->hsize, priv->klen);
+		hlist_for_each_entry(elem, &priv->hash[h], hnode) {
+			if (nft_data_cmp(&elem->key, &new->key, priv->klen))
+				continue;
+			nft_hash_elem_destroy(expr, new);
+			err = -EEXIST;
+			goto err1;
+		}
+		hlist_add_head(&new->hnode, &priv->hash[h]);
+	}
+	return 0;
+
+err1:
+	nft_hash_destroy(ctx, expr);
+	return err;
+}
+
+static int nft_hash_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	const struct nft_hash *priv = nft_expr_priv(expr);
+	const struct nft_hash_elem *elem;
+	struct nlattr *list;
+	unsigned int i;
+
+	if (priv->flags)
+		if (nla_put_be32(skb, NFTA_HASH_FLAGS, htonl(priv->flags)))
+			goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_HASH_SREG, htonl(priv->sreg)))
+		goto nla_put_failure;
+	if (priv->flags & NFT_HASH_MAP)
+		if (nla_put_be32(skb, NFTA_HASH_DREG, htonl(priv->dreg)))
+			goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_HASH_KLEN, htonl(priv->klen)))
+		goto nla_put_failure;
+
+	list = nla_nest_start(skb, NFTA_HASH_ELEMENTS);
+	if (list == NULL)
+		goto nla_put_failure;
+
+	for (i = 0; i < priv->hsize; i++) {
+		hlist_for_each_entry(elem, &priv->hash[i], hnode) {
+			if (nft_hash_elem_dump(skb, expr, elem) < 0)
+				goto nla_put_failure;
+		}
+	}
+
+	nla_nest_end(skb, list);
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static struct nft_expr_ops nft_hash_ops __read_mostly = {
+	.name		= "hash",
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_hash)),
+	.owner		= THIS_MODULE,
+	.eval		= nft_hash_eval,
+	.init		= nft_hash_init,
+	.destroy	= nft_hash_destroy,
+	.dump		= nft_hash_dump,
+	.policy		= nft_hash_policy,
+	.maxattr	= NFTA_HASH_MAX,
+};
+
+static int __init nft_hash_module_init(void)
+{
+	return nft_register_expr(&nft_hash_ops);
+}
+
+static void __exit nft_hash_module_exit(void)
+{
+	nft_unregister_expr(&nft_hash_ops);
+}
+
+module_init(nft_hash_module_init);
+module_exit(nft_hash_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_EXPR("hash");
diff --git a/net/netfilter/nft_immediate.c b/net/netfilter/nft_immediate.c
new file mode 100644
index 000000000000..3bf42c3cc49a
--- /dev/null
+++ b/net/netfilter/nft_immediate.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables_core.h>
+#include <net/netfilter/nf_tables.h>
+
+struct nft_immediate_expr {
+	struct nft_data		data;
+	enum nft_registers	dreg:8;
+	u8			dlen;
+};
+
+static void nft_immediate_eval(const struct nft_expr *expr,
+			       struct nft_data data[NFT_REG_MAX + 1],
+			       const struct nft_pktinfo *pkt)
+{
+	const struct nft_immediate_expr *priv = nft_expr_priv(expr);
+
+	nft_data_copy(&data[priv->dreg], &priv->data);
+}
+
+static const struct nla_policy nft_immediate_policy[NFTA_IMMEDIATE_MAX + 1] = {
+	[NFTA_IMMEDIATE_DREG]	= { .type = NLA_U32 },
+	[NFTA_IMMEDIATE_DATA]	= { .type = NLA_NESTED },
+};
+
+static int nft_immediate_init(const struct nft_ctx *ctx,
+			      const struct nft_expr *expr,
+			      const struct nlattr * const tb[])
+{
+	struct nft_immediate_expr *priv = nft_expr_priv(expr);
+	struct nft_data_desc desc;
+	int err;
+
+	if (tb[NFTA_IMMEDIATE_DREG] == NULL ||
+	    tb[NFTA_IMMEDIATE_DATA] == NULL)
+		return -EINVAL;
+
+	priv->dreg = ntohl(nla_get_be32(tb[NFTA_IMMEDIATE_DREG]));
+	err = nft_validate_output_register(priv->dreg);
+	if (err < 0)
+		return err;
+
+	err = nft_data_init(ctx, &priv->data, &desc, tb[NFTA_IMMEDIATE_DATA]);
+	if (err < 0)
+		return err;
+	priv->dlen = desc.len;
+
+	err = nft_validate_data_load(ctx, priv->dreg, &priv->data, desc.type);
+	if (err < 0)
+		goto err1;
+
+	return 0;
+
+err1:
+	nft_data_uninit(&priv->data, desc.type);
+	return err;
+}
+
+static void nft_immediate_destroy(const struct nft_expr *expr)
+{
+	const struct nft_immediate_expr *priv = nft_expr_priv(expr);
+	return nft_data_uninit(&priv->data, nft_dreg_to_type(priv->dreg));
+}
+
+static int nft_immediate_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	const struct nft_immediate_expr *priv = nft_expr_priv(expr);
+
+	if (nla_put_be32(skb, NFTA_IMMEDIATE_DREG, htonl(priv->dreg)))
+		goto nla_put_failure;
+
+	return nft_data_dump(skb, NFTA_IMMEDIATE_DATA, &priv->data,
+			     nft_dreg_to_type(priv->dreg), priv->dlen);
+
+nla_put_failure:
+	return -1;
+}
+
+static struct nft_expr_ops nft_imm_ops __read_mostly = {
+	.name		= "immediate",
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_immediate_expr)),
+	.owner		= THIS_MODULE,
+	.eval		= nft_immediate_eval,
+	.init		= nft_immediate_init,
+	.destroy	= nft_immediate_destroy,
+	.dump		= nft_immediate_dump,
+	.policy		= nft_immediate_policy,
+	.maxattr	= NFTA_IMMEDIATE_MAX,
+};
+
+int __init nft_immediate_module_init(void)
+{
+	return nft_register_expr(&nft_imm_ops);
+}
+
+void nft_immediate_module_exit(void)
+{
+	nft_unregister_expr(&nft_imm_ops);
+}
diff --git a/net/netfilter/nft_limit.c b/net/netfilter/nft_limit.c
new file mode 100644
index 000000000000..e0e3fc8aebc3
--- /dev/null
+++ b/net/netfilter/nft_limit.c
@@ -0,0 +1,113 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables.h>
+
+static DEFINE_SPINLOCK(limit_lock);
+
+struct nft_limit {
+	u64		tokens;
+	u64		rate;
+	u64		unit;
+	unsigned long	stamp;
+};
+
+static void nft_limit_eval(const struct nft_expr *expr,
+			   struct nft_data data[NFT_REG_MAX + 1],
+			   const struct nft_pktinfo *pkt)
+{
+	struct nft_limit *priv = nft_expr_priv(expr);
+
+	spin_lock_bh(&limit_lock);
+	if (time_after_eq(jiffies, priv->stamp)) {
+		priv->tokens = priv->rate;
+		priv->stamp = jiffies + priv->unit * HZ;
+	}
+
+	if (priv->tokens >= 1) {
+		priv->tokens--;
+		spin_unlock_bh(&limit_lock);
+		return;
+	}
+	spin_unlock_bh(&limit_lock);
+
+	data[NFT_REG_VERDICT].verdict = NFT_BREAK;
+}
+
+static const struct nla_policy nft_limit_policy[NFTA_LIMIT_MAX + 1] = {
+	[NFTA_LIMIT_RATE]	= { .type = NLA_U64 },
+	[NFTA_LIMIT_UNIT]	= { .type = NLA_U64 },
+};
+
+static int nft_limit_init(const struct nft_ctx *ctx,
+			  const struct nft_expr *expr,
+			  const struct nlattr * const tb[])
+{
+	struct nft_limit *priv = nft_expr_priv(expr);
+
+	if (tb[NFTA_LIMIT_RATE] == NULL ||
+	    tb[NFTA_LIMIT_UNIT] == NULL)
+		return -EINVAL;
+
+	priv->rate   = be64_to_cpu(nla_get_be64(tb[NFTA_LIMIT_RATE]));
+	priv->unit   = be64_to_cpu(nla_get_be64(tb[NFTA_LIMIT_UNIT]));
+	priv->stamp  = jiffies + priv->unit * HZ;
+	priv->tokens = priv->rate;
+	return 0;
+}
+
+static int nft_limit_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	const struct nft_limit *priv = nft_expr_priv(expr);
+
+	if (nla_put_be64(skb, NFTA_LIMIT_RATE, cpu_to_be64(priv->rate)))
+		goto nla_put_failure;
+	if (nla_put_be64(skb, NFTA_LIMIT_UNIT, cpu_to_be64(priv->unit)))
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static struct nft_expr_ops nft_limit_ops __read_mostly = {
+	.name		= "limit",
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_limit)),
+	.owner		= THIS_MODULE,
+	.eval		= nft_limit_eval,
+	.init		= nft_limit_init,
+	.dump		= nft_limit_dump,
+	.policy		= nft_limit_policy,
+	.maxattr	= NFTA_LIMIT_MAX,
+};
+
+static int __init nft_limit_module_init(void)
+{
+	return nft_register_expr(&nft_limit_ops);
+}
+
+static void __exit nft_limit_module_exit(void)
+{
+	nft_unregister_expr(&nft_limit_ops);
+}
+
+module_init(nft_limit_module_init);
+module_exit(nft_limit_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_EXPR("limit");
diff --git a/net/netfilter/nft_log.c b/net/netfilter/nft_log.c
new file mode 100644
index 000000000000..da495c3b1e7e
--- /dev/null
+++ b/net/netfilter/nft_log.c
@@ -0,0 +1,140 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables.h>
+#include <net/netfilter/nf_log.h>
+#include <linux/netdevice.h>
+
+static const char *nft_log_null_prefix = "";
+
+struct nft_log {
+	struct nf_loginfo	loginfo;
+	char			*prefix;
+	int			family;
+};
+
+static void nft_log_eval(const struct nft_expr *expr,
+			 struct nft_data data[NFT_REG_MAX + 1],
+			 const struct nft_pktinfo *pkt)
+{
+	const struct nft_log *priv = nft_expr_priv(expr);
+	struct net *net = dev_net(pkt->in ? pkt->in : pkt->out);
+
+	nf_log_packet(net, priv->family, pkt->hooknum, pkt->skb, pkt->in,
+		      pkt->out, &priv->loginfo, "%s", priv->prefix);
+}
+
+static const struct nla_policy nft_log_policy[NFTA_LOG_MAX + 1] = {
+	[NFTA_LOG_GROUP]	= { .type = NLA_U16 },
+	[NFTA_LOG_PREFIX]	= { .type = NLA_STRING },
+	[NFTA_LOG_SNAPLEN]	= { .type = NLA_U32 },
+	[NFTA_LOG_QTHRESHOLD]	= { .type = NLA_U16 },
+};
+
+static int nft_log_init(const struct nft_ctx *ctx,
+			const struct nft_expr *expr,
+			const struct nlattr * const tb[])
+{
+	struct nft_log *priv = nft_expr_priv(expr);
+	struct nf_loginfo *li = &priv->loginfo;
+	const struct nlattr *nla;
+
+	priv->family = ctx->afi->family;
+
+	nla = tb[NFTA_LOG_PREFIX];
+	if (nla != NULL) {
+		priv->prefix = kmalloc(nla_len(nla) + 1, GFP_KERNEL);
+		if (priv->prefix == NULL)
+			return -ENOMEM;
+		nla_strlcpy(priv->prefix, nla, nla_len(nla) + 1);
+	} else
+		priv->prefix = (char *)nft_log_null_prefix;
+
+	li->type = NF_LOG_TYPE_ULOG;
+	if (tb[NFTA_LOG_GROUP] != NULL)
+		li->u.ulog.group = ntohs(nla_get_be16(tb[NFTA_LOG_GROUP]));
+
+	if (tb[NFTA_LOG_SNAPLEN] != NULL)
+		li->u.ulog.copy_len = ntohl(nla_get_be32(tb[NFTA_LOG_SNAPLEN]));
+	if (tb[NFTA_LOG_QTHRESHOLD] != NULL) {
+		li->u.ulog.qthreshold =
+			ntohs(nla_get_be16(tb[NFTA_LOG_QTHRESHOLD]));
+	}
+
+	return 0;
+}
+
+static void nft_log_destroy(const struct nft_expr *expr)
+{
+	struct nft_log *priv = nft_expr_priv(expr);
+
+	if (priv->prefix != nft_log_null_prefix)
+		kfree(priv->prefix);
+}
+
+static int nft_log_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	const struct nft_log *priv = nft_expr_priv(expr);
+	const struct nf_loginfo *li = &priv->loginfo;
+
+	if (priv->prefix != nft_log_null_prefix)
+		if (nla_put_string(skb, NFTA_LOG_PREFIX, priv->prefix))
+			goto nla_put_failure;
+	if (li->u.ulog.group)
+		if (nla_put_be16(skb, NFTA_LOG_GROUP, htons(li->u.ulog.group)))
+			goto nla_put_failure;
+	if (li->u.ulog.copy_len)
+		if (nla_put_be32(skb, NFTA_LOG_SNAPLEN,
+				 htonl(li->u.ulog.copy_len)))
+			goto nla_put_failure;
+	if (li->u.ulog.qthreshold)
+		if (nla_put_be16(skb, NFTA_LOG_QTHRESHOLD,
+				 htons(li->u.ulog.qthreshold)))
+			goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static struct nft_expr_ops nft_log_ops __read_mostly = {
+	.name		= "log",
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_log)),
+	.owner		= THIS_MODULE,
+	.eval		= nft_log_eval,
+	.init		= nft_log_init,
+	.destroy	= nft_log_destroy,
+	.dump		= nft_log_dump,
+	.policy		= nft_log_policy,
+	.maxattr	= NFTA_LOG_MAX,
+};
+
+static int __init nft_log_module_init(void)
+{
+	return nft_register_expr(&nft_log_ops);
+}
+
+static void __exit nft_log_module_exit(void)
+{
+	nft_unregister_expr(&nft_log_ops);
+}
+
+module_init(nft_log_module_init);
+module_exit(nft_log_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_EXPR("log");
diff --git a/net/netfilter/nft_meta.c b/net/netfilter/nft_meta.c
new file mode 100644
index 000000000000..96735aa2f039
--- /dev/null
+++ b/net/netfilter/nft_meta.c
@@ -0,0 +1,222 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/dst.h>
+#include <net/sock.h>
+#include <net/tcp_states.h> /* for TCP_TIME_WAIT */
+#include <net/netfilter/nf_tables.h>
+
+struct nft_meta {
+	enum nft_meta_keys	key:8;
+	enum nft_registers	dreg:8;
+};
+
+static void nft_meta_eval(const struct nft_expr *expr,
+			  struct nft_data data[NFT_REG_MAX + 1],
+			  const struct nft_pktinfo *pkt)
+{
+	const struct nft_meta *priv = nft_expr_priv(expr);
+	const struct sk_buff *skb = pkt->skb;
+	const struct net_device *in = pkt->in, *out = pkt->out;
+	struct nft_data *dest = &data[priv->dreg];
+
+	switch (priv->key) {
+	case NFT_META_LEN:
+		dest->data[0] = skb->len;
+		break;
+	case NFT_META_PROTOCOL:
+		*(__be16 *)dest->data = skb->protocol;
+		break;
+	case NFT_META_PRIORITY:
+		dest->data[0] = skb->priority;
+		break;
+	case NFT_META_MARK:
+		dest->data[0] = skb->mark;
+		break;
+	case NFT_META_IIF:
+		if (in == NULL)
+			goto err;
+		dest->data[0] = in->ifindex;
+		break;
+	case NFT_META_OIF:
+		if (out == NULL)
+			goto err;
+		dest->data[0] = out->ifindex;
+		break;
+	case NFT_META_IIFNAME:
+		if (in == NULL)
+			goto err;
+		strncpy((char *)dest->data, in->name, sizeof(dest->data));
+		break;
+	case NFT_META_OIFNAME:
+		if (out == NULL)
+			goto err;
+		strncpy((char *)dest->data, out->name, sizeof(dest->data));
+		break;
+	case NFT_META_IIFTYPE:
+		if (in == NULL)
+			goto err;
+		*(u16 *)dest->data = in->type;
+		break;
+	case NFT_META_OIFTYPE:
+		if (out == NULL)
+			goto err;
+		*(u16 *)dest->data = out->type;
+		break;
+	case NFT_META_SKUID:
+		if (skb->sk == NULL || skb->sk->sk_state == TCP_TIME_WAIT)
+			goto err;
+
+		read_lock_bh(&skb->sk->sk_callback_lock);
+		if (skb->sk->sk_socket == NULL ||
+		    skb->sk->sk_socket->file == NULL) {
+			read_unlock_bh(&skb->sk->sk_callback_lock);
+			goto err;
+		}
+
+		dest->data[0] =
+			from_kuid_munged(&init_user_ns,
+				skb->sk->sk_socket->file->f_cred->fsuid);
+		read_unlock_bh(&skb->sk->sk_callback_lock);
+		break;
+	case NFT_META_SKGID:
+		if (skb->sk == NULL || skb->sk->sk_state == TCP_TIME_WAIT)
+			goto err;
+
+		read_lock_bh(&skb->sk->sk_callback_lock);
+		if (skb->sk->sk_socket == NULL ||
+		    skb->sk->sk_socket->file == NULL) {
+			read_unlock_bh(&skb->sk->sk_callback_lock);
+			goto err;
+		}
+		dest->data[0] =
+			from_kgid_munged(&init_user_ns,
+				 skb->sk->sk_socket->file->f_cred->fsgid);
+		read_unlock_bh(&skb->sk->sk_callback_lock);
+		break;
+#ifdef CONFIG_NET_CLS_ROUTE
+	case NFT_META_RTCLASSID: {
+		const struct dst_entry *dst = skb_dst(skb);
+
+		if (dst == NULL)
+			goto err;
+		dest->data[0] = dst->tclassid;
+		break;
+	}
+#endif
+#ifdef CONFIG_NETWORK_SECMARK
+	case NFT_META_SECMARK:
+		dest->data[0] = skb->secmark;
+		break;
+#endif
+	default:
+		WARN_ON(1);
+		goto err;
+	}
+	return;
+
+err:
+	data[NFT_REG_VERDICT].verdict = NFT_BREAK;
+}
+
+static const struct nla_policy nft_meta_policy[NFTA_META_MAX + 1] = {
+	[NFTA_META_DREG]	= { .type = NLA_U32 },
+	[NFTA_META_KEY]		= { .type = NLA_U32 },
+};
+
+static int nft_meta_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
+			 const struct nlattr * const tb[])
+{
+	struct nft_meta *priv = nft_expr_priv(expr);
+	int err;
+
+	if (tb[NFTA_META_DREG] == NULL ||
+	    tb[NFTA_META_KEY] == NULL)
+		return -EINVAL;
+
+	priv->key = ntohl(nla_get_be32(tb[NFTA_META_KEY]));
+	switch (priv->key) {
+	case NFT_META_LEN:
+	case NFT_META_PROTOCOL:
+	case NFT_META_PRIORITY:
+	case NFT_META_MARK:
+	case NFT_META_IIF:
+	case NFT_META_OIF:
+	case NFT_META_IIFNAME:
+	case NFT_META_OIFNAME:
+	case NFT_META_IIFTYPE:
+	case NFT_META_OIFTYPE:
+	case NFT_META_SKUID:
+	case NFT_META_SKGID:
+#ifdef CONFIG_NET_CLS_ROUTE
+	case NFT_META_RTCLASSID:
+#endif
+#ifdef CONFIG_NETWORK_SECMARK
+	case NFT_META_SECMARK:
+#endif
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	priv->dreg = ntohl(nla_get_be32(tb[NFTA_META_DREG]));
+	err = nft_validate_output_register(priv->dreg);
+	if (err < 0)
+		return err;
+	return nft_validate_data_load(ctx, priv->dreg, NULL, NFT_DATA_VALUE);
+}
+
+static int nft_meta_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	const struct nft_meta *priv = nft_expr_priv(expr);
+
+	if (nla_put_be32(skb, NFTA_META_DREG, htonl(priv->dreg)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_META_KEY, htonl(priv->key)))
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static struct nft_expr_ops nft_meta_ops __read_mostly = {
+	.name		= "meta",
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_meta)),
+	.owner		= THIS_MODULE,
+	.eval		= nft_meta_eval,
+	.init		= nft_meta_init,
+	.dump		= nft_meta_dump,
+	.policy		= nft_meta_policy,
+	.maxattr	= NFTA_META_MAX,
+};
+
+static int __init nft_meta_module_init(void)
+{
+	return nft_register_expr(&nft_meta_ops);
+}
+
+static void __exit nft_meta_module_exit(void)
+{
+	nft_unregister_expr(&nft_meta_ops);
+}
+
+module_init(nft_meta_module_init);
+module_exit(nft_meta_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_EXPR("meta");
diff --git a/net/netfilter/nft_meta_target.c b/net/netfilter/nft_meta_target.c
new file mode 100644
index 000000000000..71177df75ffb
--- /dev/null
+++ b/net/netfilter/nft_meta_target.c
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/rbtree.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables.h>
+
+struct nft_meta {
+	enum nft_meta_keys	key;
+};
+
+static void nft_meta_eval(const struct nft_expr *expr,
+			  struct nft_data *nfres,
+			  struct nft_data *data,
+			  const struct nft_pktinfo *pkt)
+{
+	const struct nft_meta *meta = nft_expr_priv(expr);
+	struct sk_buff *skb = pkt->skb;
+	u32 val = data->data[0];
+
+	switch (meta->key) {
+	case NFT_META_MARK:
+		skb->mark = val;
+		break;
+	case NFT_META_PRIORITY:
+		skb->priority = val;
+		break;
+	case NFT_META_NFTRACE:
+		skb->nf_trace = val;
+		break;
+#ifdef CONFIG_NETWORK_SECMARK
+	case NFT_META_SECMARK:
+		skb->secmark = val;
+		break;
+#endif
+	default:
+		WARN_ON(1);
+	}
+}
+
+static const struct nla_policy nft_meta_policy[NFTA_META_MAX + 1] = {
+	[NFTA_META_KEY]		= { .type = NLA_U32 },
+};
+
+static int nft_meta_init(const struct nft_expr *expr, struct nlattr *tb[])
+{
+	struct nft_meta *meta = nft_expr_priv(expr);
+
+	if (tb[NFTA_META_KEY] == NULL)
+		return -EINVAL;
+
+	meta->key = ntohl(nla_get_be32(tb[NFTA_META_KEY]));
+	switch (meta->key) {
+	case NFT_META_MARK:
+	case NFT_META_PRIORITY:
+	case NFT_META_NFTRACE:
+#ifdef CONFIG_NETWORK_SECMARK
+	case NFT_META_SECMARK:
+#endif
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int nft_meta_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	struct nft_meta *meta = nft_expr_priv(expr);
+
+	NLA_PUT_BE32(skb, NFTA_META_KEY, htonl(meta->key));
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static struct nft_expr_ops meta_target __read_mostly = {
+	.name		= "meta",
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_meta)),
+	.owner		= THIS_MODULE,
+	.eval		= nft_meta_eval,
+	.init		= nft_meta_init,
+	.dump		= nft_meta_dump,
+	.policy		= nft_meta_policy,
+	.maxattr	= NFTA_META_MAX,
+};
+
+static int __init nft_meta_target_init(void)
+{
+	return nft_register_expr(&meta_target);
+}
+
+static void __exit nft_meta_target_exit(void)
+{
+	nft_unregister_expr(&meta_target);
+}
+
+module_init(nft_meta_target_init);
+module_exit(nft_meta_target_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_EXPR("meta");
diff --git a/net/netfilter/nft_payload.c b/net/netfilter/nft_payload.c
new file mode 100644
index 000000000000..329f134b3f89
--- /dev/null
+++ b/net/netfilter/nft_payload.c
@@ -0,0 +1,137 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables_core.h>
+#include <net/netfilter/nf_tables.h>
+
+struct nft_payload {
+	enum nft_payload_bases	base:8;
+	u8			offset;
+	u8			len;
+	enum nft_registers	dreg:8;
+};
+
+static void nft_payload_eval(const struct nft_expr *expr,
+			     struct nft_data data[NFT_REG_MAX + 1],
+			     const struct nft_pktinfo *pkt)
+{
+	const struct nft_payload *priv = nft_expr_priv(expr);
+	const struct sk_buff *skb = pkt->skb;
+	struct nft_data *dest = &data[priv->dreg];
+	int offset;
+
+	switch (priv->base) {
+	case NFT_PAYLOAD_LL_HEADER:
+		if (!skb_mac_header_was_set(skb))
+			goto err;
+		offset = skb_mac_header(skb) - skb->data;
+		break;
+	case NFT_PAYLOAD_NETWORK_HEADER:
+		offset = skb_network_offset(skb);
+		break;
+	case NFT_PAYLOAD_TRANSPORT_HEADER:
+		offset = skb_transport_offset(skb);
+		break;
+	default:
+		BUG();
+	}
+	offset += priv->offset;
+
+	if (skb_copy_bits(skb, offset, dest->data, priv->len) < 0)
+		goto err;
+	return;
+err:
+	data[NFT_REG_VERDICT].verdict = NFT_BREAK;
+}
+
+static const struct nla_policy nft_payload_policy[NFTA_PAYLOAD_MAX + 1] = {
+	[NFTA_PAYLOAD_DREG]	= { .type = NLA_U32 },
+	[NFTA_PAYLOAD_BASE]	= { .type = NLA_U32 },
+	[NFTA_PAYLOAD_OFFSET]	= { .type = NLA_U32 },
+	[NFTA_PAYLOAD_LEN]	= { .type = NLA_U32 },
+};
+
+static int nft_payload_init(const struct nft_ctx *ctx,
+			    const struct nft_expr *expr,
+			    const struct nlattr * const tb[])
+{
+	struct nft_payload *priv = nft_expr_priv(expr);
+	int err;
+
+	if (tb[NFTA_PAYLOAD_DREG] == NULL ||
+	    tb[NFTA_PAYLOAD_BASE] == NULL ||
+	    tb[NFTA_PAYLOAD_OFFSET] == NULL ||
+	    tb[NFTA_PAYLOAD_LEN] == NULL)
+		return -EINVAL;
+
+	priv->base = ntohl(nla_get_be32(tb[NFTA_PAYLOAD_BASE]));
+	switch (priv->base) {
+	case NFT_PAYLOAD_LL_HEADER:
+	case NFT_PAYLOAD_NETWORK_HEADER:
+	case NFT_PAYLOAD_TRANSPORT_HEADER:
+		break;
+	default:
+		return -EOPNOTSUPP;
+	}
+
+	priv->offset = ntohl(nla_get_be32(tb[NFTA_PAYLOAD_OFFSET]));
+	priv->len    = ntohl(nla_get_be32(tb[NFTA_PAYLOAD_LEN]));
+	if (priv->len == 0 ||
+	    priv->len > FIELD_SIZEOF(struct nft_data, data))
+		return -EINVAL;
+
+	priv->dreg = ntohl(nla_get_be32(tb[NFTA_PAYLOAD_DREG]));
+	err = nft_validate_output_register(priv->dreg);
+	if (err < 0)
+		return err;
+	return nft_validate_data_load(ctx, priv->dreg, NULL, NFT_DATA_VALUE);
+}
+
+static int nft_payload_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	const struct nft_payload *priv = nft_expr_priv(expr);
+
+	if (nla_put_be32(skb, NFTA_PAYLOAD_DREG, htonl(priv->dreg)) ||
+	    nla_put_be32(skb, NFTA_PAYLOAD_BASE, htonl(priv->base)) ||
+	    nla_put_be32(skb, NFTA_PAYLOAD_OFFSET, htonl(priv->offset)) ||
+	    nla_put_be32(skb, NFTA_PAYLOAD_LEN, htonl(priv->len)))
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static struct nft_expr_ops nft_payload_ops __read_mostly = {
+	.name		= "payload",
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_payload)),
+	.owner		= THIS_MODULE,
+	.eval		= nft_payload_eval,
+	.init		= nft_payload_init,
+	.dump		= nft_payload_dump,
+	.policy		= nft_payload_policy,
+	.maxattr	= NFTA_PAYLOAD_MAX,
+};
+
+int __init nft_payload_module_init(void)
+{
+	return nft_register_expr(&nft_payload_ops);
+}
+
+void nft_payload_module_exit(void)
+{
+	nft_unregister_expr(&nft_payload_ops);
+}
diff --git a/net/netfilter/nft_set.c b/net/netfilter/nft_set.c
new file mode 100644
index 000000000000..7b7c8354c327
--- /dev/null
+++ b/net/netfilter/nft_set.c
@@ -0,0 +1,381 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/rbtree.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables.h>
+
+struct nft_set {
+	struct rb_root		root;
+	enum nft_registers	sreg:8;
+	enum nft_registers	dreg:8;
+	u8			klen;
+	u8			dlen;
+	u16			flags;
+};
+
+struct nft_set_elem {
+	struct rb_node		node;
+	enum nft_set_elem_flags	flags;
+	struct nft_data		key;
+	struct nft_data		data[];
+};
+
+static void nft_set_eval(const struct nft_expr *expr,
+			 struct nft_data data[NFT_REG_MAX + 1],
+			 const struct nft_pktinfo *pkt)
+{
+	const struct nft_set *priv = nft_expr_priv(expr);
+	const struct rb_node *parent = priv->root.rb_node;
+	const struct nft_set_elem *elem, *interval = NULL;
+	const struct nft_data *key = &data[priv->sreg];
+	int d;
+
+	while (parent != NULL) {
+		elem = rb_entry(parent, struct nft_set_elem, node);
+
+		d = nft_data_cmp(&elem->key, key, priv->klen);
+		if (d < 0) {
+			parent = parent->rb_left;
+			interval = elem;
+		} else if (d > 0)
+			parent = parent->rb_right;
+		else {
+found:
+			if (elem->flags & NFT_SE_INTERVAL_END)
+				goto out;
+			if (priv->flags & NFT_SET_MAP)
+				nft_data_copy(&data[priv->dreg], elem->data);
+			return;
+		}
+	}
+
+	if (priv->flags & NFT_SET_INTERVAL && interval != NULL) {
+		elem = interval;
+		goto found;
+	}
+out:
+	data[NFT_REG_VERDICT].verdict = NFT_BREAK;
+}
+
+static void nft_set_elem_destroy(const struct nft_expr *expr,
+				 struct nft_set_elem *elem)
+{
+	const struct nft_set *priv = nft_expr_priv(expr);
+
+	nft_data_uninit(&elem->key, NFT_DATA_VALUE);
+	if (priv->flags & NFT_SET_MAP)
+		nft_data_uninit(elem->data, nft_dreg_to_type(priv->dreg));
+	kfree(elem);
+}
+
+static const struct nla_policy nft_se_policy[NFTA_SE_MAX + 1] = {
+	[NFTA_SE_KEY]		= { .type = NLA_NESTED },
+	[NFTA_SE_DATA]		= { .type = NLA_NESTED },
+	[NFTA_SE_FLAGS]		= { .type = NLA_U32 },
+};
+
+static int nft_set_elem_init(const struct nft_ctx *ctx,
+			     const struct nft_expr *expr,
+			     const struct nlattr *nla,
+			     struct nft_set_elem **new)
+{
+	struct nft_set *priv = nft_expr_priv(expr);
+	struct nlattr *tb[NFTA_SE_MAX + 1];
+	struct nft_set_elem *elem;
+	struct nft_data_desc d1, d2;
+	enum nft_set_elem_flags flags = 0;
+	unsigned int size;
+	int err;
+
+	err = nla_parse_nested(tb, NFTA_SE_MAX, nla, nft_se_policy);
+	if (err < 0)
+		return err;
+
+	if (tb[NFTA_SE_KEY] == NULL)
+		return -EINVAL;
+
+	if (tb[NFTA_SE_FLAGS] != NULL) {
+		flags = ntohl(nla_get_be32(tb[NFTA_SE_FLAGS]));
+		if (flags & ~NFT_SE_INTERVAL_END)
+			return -EINVAL;
+	}
+
+	size = sizeof(*elem);
+	if (priv->flags & NFT_SET_MAP) {
+		if (tb[NFTA_SE_DATA] == NULL && !(flags & NFT_SE_INTERVAL_END))
+			return -EINVAL;
+		size += sizeof(elem->data[0]);
+	} else {
+		if (tb[NFTA_SE_DATA] != NULL)
+			return -EINVAL;
+	}
+
+	elem = kzalloc(size, GFP_KERNEL);
+	if (elem == NULL)
+		return -ENOMEM;
+	elem->flags = flags;
+
+	err = nft_data_init(ctx, &elem->key, &d1, tb[NFTA_SE_KEY]);
+	if (err < 0)
+		goto err1;
+	err = -EINVAL;
+	if (d1.type != NFT_DATA_VALUE || d1.len != priv->klen)
+		goto err2;
+
+	if (tb[NFTA_SE_DATA] != NULL) {
+		err = nft_data_init(ctx, elem->data, &d2, tb[NFTA_SE_DATA]);
+		if (err < 0)
+			goto err2;
+		err = -EINVAL;
+		if (priv->dreg != NFT_REG_VERDICT && d2.len != priv->dlen)
+			goto err2;
+		err = nft_validate_data_load(ctx, priv->dreg, elem->data, d2.type);
+		if (err < 0)
+			goto err3;
+	}
+
+	*new = elem;
+	return 0;
+
+err3:
+	nft_data_uninit(elem->data, d2.type);
+err2:
+	nft_data_uninit(&elem->key, d1.type);
+err1:
+	kfree(elem);
+	return err;
+}
+
+static int nft_set_elem_dump(struct sk_buff *skb, const struct nft_expr *expr,
+			     const struct nft_set_elem *elem)
+
+{
+	const struct nft_set *priv = nft_expr_priv(expr);
+	struct nlattr *nest;
+
+	nest = nla_nest_start(skb, NFTA_LIST_ELEM);
+	if (nest == NULL)
+		goto nla_put_failure;
+
+	if (nft_data_dump(skb, NFTA_SE_KEY, &elem->key,
+			  NFT_DATA_VALUE, priv->klen) < 0)
+		goto nla_put_failure;
+
+	if (priv->flags & NFT_SET_MAP && !(elem->flags & NFT_SE_INTERVAL_END)) {
+		if (nft_data_dump(skb, NFTA_SE_DATA, elem->data,
+				  nft_dreg_to_type(priv->dreg), priv->dlen) < 0)
+			goto nla_put_failure;
+	}
+
+	if (elem->flags){
+		if (nla_put_be32(skb, NFTA_SE_FLAGS, htonl(elem->flags)))
+			goto nla_put_failure;
+	}
+
+	nla_nest_end(skb, nest);
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static void nft_set_destroy(const struct nft_expr *expr)
+{
+	struct nft_set *priv = nft_expr_priv(expr);
+	struct nft_set_elem *elem;
+	struct rb_node *node;
+
+	while ((node = priv->root.rb_node) != NULL) {
+		rb_erase(node, &priv->root);
+		elem = rb_entry(node, struct nft_set_elem, node);
+		nft_set_elem_destroy(expr, elem);
+	}
+}
+
+static const struct nla_policy nft_set_policy[NFTA_SET_MAX + 1] = {
+	[NFTA_SET_FLAGS]	= { .type = NLA_U32 },
+	[NFTA_SET_SREG]		= { .type = NLA_U32 },
+	[NFTA_SET_DREG]		= { .type = NLA_U32 },
+	[NFTA_SET_KLEN]		= { .type = NLA_U32 },
+	[NFTA_SET_DLEN]		= { .type = NLA_U32 },
+	[NFTA_SET_ELEMENTS]	= { .type = NLA_NESTED },
+};
+
+static int nft_set_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
+			const struct nlattr * const tb[])
+{
+	struct nft_set *priv = nft_expr_priv(expr);
+	struct nft_set_elem *elem, *uninitialized_var(new);
+	struct rb_node *parent, **p;
+	const struct nlattr *nla;
+	int err, rem, d;
+
+	if (tb[NFTA_SET_SREG] == NULL ||
+	    tb[NFTA_SET_KLEN] == NULL ||
+	    tb[NFTA_SET_ELEMENTS] == NULL)
+		return -EINVAL;
+
+	priv->root = RB_ROOT;
+
+	if (tb[NFTA_SET_FLAGS] != NULL) {
+		priv->flags = ntohl(nla_get_be32(tb[NFTA_SET_FLAGS]));
+		if (priv->flags & ~(NFT_SET_INTERVAL | NFT_SET_MAP))
+			return -EINVAL;
+	}
+
+	priv->sreg = ntohl(nla_get_be32(tb[NFTA_SET_SREG]));
+	err = nft_validate_input_register(priv->sreg);
+	if (err < 0)
+		return err;
+
+	if (tb[NFTA_SET_DREG] != NULL) {
+		if (!(priv->flags & NFT_SET_MAP))
+			return -EINVAL;
+		if (tb[NFTA_SET_DLEN] == NULL)
+			return -EINVAL;
+
+		priv->dreg = ntohl(nla_get_be32(tb[NFTA_SET_DREG]));
+		err = nft_validate_output_register(priv->dreg);
+		if (err < 0)
+			return err;
+
+		if (priv->dreg == NFT_REG_VERDICT)
+			priv->dlen = FIELD_SIZEOF(struct nft_data, data);
+		else {
+			priv->dlen = ntohl(nla_get_be32(tb[NFTA_SET_DLEN]));
+			if (priv->dlen == 0 ||
+			    priv->dlen > FIELD_SIZEOF(struct nft_data, data))
+				return -EINVAL;
+		}
+	} else {
+		if (priv->flags & NFT_SET_MAP)
+			return -EINVAL;
+		if (tb[NFTA_SET_DLEN] != NULL)
+			return -EINVAL;
+	}
+
+	priv->klen = ntohl(nla_get_be32(tb[NFTA_SET_KLEN]));
+	if (priv->klen == 0 ||
+	    priv->klen > FIELD_SIZEOF(struct nft_data, data))
+		return -EINVAL;
+
+	nla_for_each_nested(nla, tb[NFTA_SET_ELEMENTS], rem) {
+		err = -EINVAL;
+		if (nla_type(nla) != NFTA_LIST_ELEM)
+			goto err1;
+
+		err = nft_set_elem_init(ctx, expr, nla, &new);
+		if (err < 0)
+			goto err1;
+
+		parent = NULL;
+		p = &priv->root.rb_node;
+		while (*p != NULL) {
+			parent = *p;
+			elem = rb_entry(parent, struct nft_set_elem, node);
+			d = nft_data_cmp(&elem->key, &new->key, priv->klen);
+			if (d < 0)
+				p = &parent->rb_left;
+			else if (d > 0)
+				p = &parent->rb_right;
+			else {
+				err = -EEXIST;
+				goto err2;
+			}
+		}
+		rb_link_node(&new->node, parent, p);
+		rb_insert_color(&new->node, &priv->root);
+	}
+
+	return 0;
+
+err2:
+	nft_set_elem_destroy(expr, new);
+err1:
+	nft_set_destroy(expr);
+	return err;
+}
+
+static int nft_set_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	struct nft_set *priv = nft_expr_priv(expr);
+	const struct nft_set_elem *elem;
+	struct rb_node *node;
+	struct nlattr *list;
+
+	if (priv->flags) {
+		if (nla_put_be32(skb, NFTA_SET_FLAGS, htonl(priv->flags)))
+			goto nla_put_failure;
+	}
+
+	if (nla_put_be32(skb, NFTA_SET_SREG, htonl(priv->sreg)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_SET_KLEN, htonl(priv->klen)))
+		goto nla_put_failure;
+
+	if (priv->flags & NFT_SET_MAP) {
+		if (nla_put_be32(skb, NFTA_SET_DREG, htonl(priv->dreg)))
+			goto nla_put_failure;
+		if (nla_put_be32(skb, NFTA_SET_DLEN, htonl(priv->dlen)))
+			goto nla_put_failure;
+	}
+
+	list = nla_nest_start(skb, NFTA_SET_ELEMENTS);
+	if (list == NULL)
+		goto nla_put_failure;
+
+	for (node = rb_first(&priv->root); node; node = rb_next(node)) {
+		elem = rb_entry(node, struct nft_set_elem, node);
+		if (nft_set_elem_dump(skb, expr, elem) < 0)
+			goto nla_put_failure;
+	}
+
+	nla_nest_end(skb, list);
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static struct nft_expr_ops nft_set_ops __read_mostly = {
+	.name		= "set",
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_set)),
+	.owner		= THIS_MODULE,
+	.eval		= nft_set_eval,
+	.init		= nft_set_init,
+	.destroy	= nft_set_destroy,
+	.dump		= nft_set_dump,
+	.policy		= nft_set_policy,
+	.maxattr	= NFTA_SET_MAX,
+};
+
+static int __init nft_set_module_init(void)
+{
+	return nft_register_expr(&nft_set_ops);
+}
+
+static void __exit nft_set_module_exit(void)
+{
+	nft_unregister_expr(&nft_set_ops);
+}
+
+module_init(nft_set_module_init);
+module_exit(nft_set_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_EXPR("set");
-- 
cgit 


From 20a69341f2d00cd042e81c82289fba8a13c05a25 Mon Sep 17 00:00:00 2001
From: Patrick McHardy <kaber@trash.net>
Date: Fri, 11 Oct 2013 12:06:22 +0200
Subject: netfilter: nf_tables: add netlink set API

This patch adds the new netlink API for maintaining nf_tables sets
independently of the ruleset. The API supports the following operations:

- creation of sets
- deletion of sets
- querying of specific sets
- dumping of all sets

- addition of set elements
- removal of set elements
- dumping of all set elements

Sets are identified by name, each table defines an individual namespace.
The name of a set may be allocated automatically, this is mostly useful
in combination with the NFT_SET_ANONYMOUS flag, which destroys a set
automatically once the last reference has been released.

Sets can be marked constant, meaning they're not allowed to change while
linked to a rule. This allows to perform lockless operation for set
types that would otherwise require locking.

Additionally, if the implementation supports it, sets can (as before) be
used as maps, associating a data value with each key (or range), by
specifying the NFT_SET_MAP flag and can be used for interval queries by
specifying the NFT_SET_INTERVAL flag.

Set elements are added and removed incrementally. All element operations
support batching, reducing netlink message and set lookup overhead.

The old "set" and "hash" expressions are replaced by a generic "lookup"
expression, which binds to the specified set. Userspace is not aware
of the actual set implementation used by the kernel anymore, all
configuration options are generic.

Currently the implementation selection logic is largely missing and the
kernel will simply use the first registered implementation supporting the
requested operation. Eventually, the plan is to have userspace supply a
description of the data characteristics and select the implementation
based on expected performance and memory use.

This patch includes the new 'lookup' expression to look up for element
matching in the set.

This patch includes kernel-doc descriptions for this set API and it
also includes the following fixes.

From Patrick McHardy:
* netfilter: nf_tables: fix set element data type in dumps
* netfilter: nf_tables: fix indentation of struct nft_set_elem comments
* netfilter: nf_tables: fix oops in nft_validate_data_load()
* netfilter: nf_tables: fix oops while listing sets of built-in tables
* netfilter: nf_tables: destroy anonymous sets immediately if binding fails
* netfilter: nf_tables: propagate context to set iter callback
* netfilter: nf_tables: add loop detection

From Pablo Neira Ayuso:
* netfilter: nf_tables: allow to dump all existing sets
* netfilter: nf_tables: fix wrong type for flags variable in newelem

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/net/netfilter/nf_tables.h        |  149 ++++-
 include/uapi/linux/netfilter/nf_tables.h |  191 ++++--
 net/netfilter/Kconfig                    |    6 +-
 net/netfilter/Makefile                   |    2 +-
 net/netfilter/nf_tables_api.c            | 1078 +++++++++++++++++++++++++++++-
 net/netfilter/nf_tables_core.c           |    2 -
 net/netfilter/nft_hash.c                 |  329 +++------
 net/netfilter/nft_immediate.c            |   11 +
 net/netfilter/nft_lookup.c               |  135 ++++
 net/netfilter/nft_rbtree.c               |  247 +++++++
 net/netfilter/nft_set.c                  |  381 -----------
 11 files changed, 1854 insertions(+), 677 deletions(-)
 create mode 100644 net/netfilter/nft_lookup.c
 create mode 100644 net/netfilter/nft_rbtree.c
 delete mode 100644 net/netfilter/nft_set.c

diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index d26dfa345f49..677dd79380ed 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -6,6 +6,8 @@
 #include <linux/netfilter/nf_tables.h>
 #include <net/netlink.h>
 
+#define NFT_JUMP_STACK_SIZE	16
+
 struct nft_pktinfo {
 	struct sk_buff			*skb;
 	const struct net_device		*in;
@@ -48,23 +50,22 @@ static inline void nft_data_debug(const struct nft_data *data)
 }
 
 /**
- *	struct nft_ctx - nf_tables rule context
+ *	struct nft_ctx - nf_tables rule/set context
  *
+ * 	@skb: netlink skb
+ * 	@nlh: netlink message header
  * 	@afi: address family info
  * 	@table: the table the chain is contained in
  * 	@chain: the chain the rule is contained in
  */
 struct nft_ctx {
+	const struct sk_buff		*skb;
+	const struct nlmsghdr		*nlh;
 	const struct nft_af_info	*afi;
 	const struct nft_table		*table;
 	const struct nft_chain		*chain;
 };
 
-enum nft_data_types {
-	NFT_DATA_VALUE,
-	NFT_DATA_VERDICT,
-};
-
 struct nft_data_desc {
 	enum nft_data_types		type;
 	unsigned int			len;
@@ -83,6 +84,11 @@ static inline enum nft_data_types nft_dreg_to_type(enum nft_registers reg)
 	return reg == NFT_REG_VERDICT ? NFT_DATA_VERDICT : NFT_DATA_VALUE;
 }
 
+static inline enum nft_registers nft_type_to_reg(enum nft_data_types type)
+{
+	return type == NFT_DATA_VERDICT ? NFT_REG_VERDICT : NFT_REG_1;
+}
+
 extern int nft_validate_input_register(enum nft_registers reg);
 extern int nft_validate_output_register(enum nft_registers reg);
 extern int nft_validate_data_load(const struct nft_ctx *ctx,
@@ -90,6 +96,132 @@ extern int nft_validate_data_load(const struct nft_ctx *ctx,
 				  const struct nft_data *data,
 				  enum nft_data_types type);
 
+/**
+ *	struct nft_set_elem - generic representation of set elements
+ *
+ *	@cookie: implementation specific element cookie
+ *	@key: element key
+ *	@data: element data (maps only)
+ *	@flags: element flags (end of interval)
+ *
+ *	The cookie can be used to store a handle to the element for subsequent
+ *	removal.
+ */
+struct nft_set_elem {
+	void			*cookie;
+	struct nft_data		key;
+	struct nft_data		data;
+	u32			flags;
+};
+
+struct nft_set;
+struct nft_set_iter {
+	unsigned int	count;
+	unsigned int	skip;
+	int		err;
+	int		(*fn)(const struct nft_ctx *ctx,
+			      const struct nft_set *set,
+			      const struct nft_set_iter *iter,
+			      const struct nft_set_elem *elem);
+};
+
+/**
+ *	struct nft_set_ops - nf_tables set operations
+ *
+ *	@lookup: look up an element within the set
+ *	@insert: insert new element into set
+ *	@remove: remove element from set
+ *	@walk: iterate over all set elemeennts
+ *	@privsize: function to return size of set private data
+ *	@init: initialize private data of new set instance
+ *	@destroy: destroy private data of set instance
+ *	@list: nf_tables_set_ops list node
+ *	@owner: module reference
+ *	@features: features supported by the implementation
+ */
+struct nft_set_ops {
+	bool				(*lookup)(const struct nft_set *set,
+						  const struct nft_data *key,
+						  struct nft_data *data);
+	int				(*get)(const struct nft_set *set,
+					       struct nft_set_elem *elem);
+	int				(*insert)(const struct nft_set *set,
+						  const struct nft_set_elem *elem);
+	void				(*remove)(const struct nft_set *set,
+						  const struct nft_set_elem *elem);
+	void				(*walk)(const struct nft_ctx *ctx,
+						const struct nft_set *set,
+						struct nft_set_iter *iter);
+
+	unsigned int			(*privsize)(const struct nlattr * const nla[]);
+	int				(*init)(const struct nft_set *set,
+						const struct nlattr * const nla[]);
+	void				(*destroy)(const struct nft_set *set);
+
+	struct list_head		list;
+	struct module			*owner;
+	u32				features;
+};
+
+extern int nft_register_set(struct nft_set_ops *ops);
+extern void nft_unregister_set(struct nft_set_ops *ops);
+
+/**
+ * 	struct nft_set - nf_tables set instance
+ *
+ *	@list: table set list node
+ *	@bindings: list of set bindings
+ * 	@name: name of the set
+ * 	@ktype: key type (numeric type defined by userspace, not used in the kernel)
+ * 	@dtype: data type (verdict or numeric type defined by userspace)
+ * 	@ops: set ops
+ * 	@flags: set flags
+ * 	@klen: key length
+ * 	@dlen: data length
+ * 	@data: private set data
+ */
+struct nft_set {
+	struct list_head		list;
+	struct list_head		bindings;
+	char				name[IFNAMSIZ];
+	u32				ktype;
+	u32				dtype;
+	/* runtime data below here */
+	const struct nft_set_ops	*ops ____cacheline_aligned;
+	u16				flags;
+	u8				klen;
+	u8				dlen;
+	unsigned char			data[]
+		__attribute__((aligned(__alignof__(u64))));
+};
+
+static inline void *nft_set_priv(const struct nft_set *set)
+{
+	return (void *)set->data;
+}
+
+extern struct nft_set *nf_tables_set_lookup(const struct nft_table *table,
+					    const struct nlattr *nla);
+
+/**
+ *	struct nft_set_binding - nf_tables set binding
+ *
+ *	@list: set bindings list node
+ *	@chain: chain containing the rule bound to the set
+ *
+ *	A set binding contains all information necessary for validation
+ *	of new elements added to a bound set.
+ */
+struct nft_set_binding {
+	struct list_head		list;
+	const struct nft_chain		*chain;
+};
+
+extern int nf_tables_bind_set(const struct nft_ctx *ctx, struct nft_set *set,
+			      struct nft_set_binding *binding);
+extern void nf_tables_unbind_set(const struct nft_ctx *ctx, struct nft_set *set,
+				 struct nft_set_binding *binding);
+
 /**
  *	struct nft_expr_ops - nf_tables expression operations
  *
@@ -115,7 +247,7 @@ struct nft_expr_ops {
 	void				(*destroy)(const struct nft_expr *expr);
 	int				(*dump)(struct sk_buff *skb,
 						const struct nft_expr *expr);
-
+	const struct nft_data *		(*get_verdict)(const struct nft_expr *expr);
 	struct list_head		list;
 	const char			*name;
 	struct module			*owner;
@@ -298,4 +430,7 @@ extern void nft_unregister_expr(struct nft_expr_ops *);
 #define MODULE_ALIAS_NFT_EXPR(name) \
 	MODULE_ALIAS("nft-expr-" name)
 
+#define MODULE_ALIAS_NFT_SET() \
+	MODULE_ALIAS("nft-set")
+
 #endif /* _NET_NF_TABLES_H */
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index ec6d84a8ed1e..9e924014efe3 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -44,6 +44,12 @@ enum nft_verdicts {
  * @NFT_MSG_NEWRULE: create a new rule (enum nft_rule_attributes)
  * @NFT_MSG_GETRULE: get a rule (enum nft_rule_attributes)
  * @NFT_MSG_DELRULE: delete a rule (enum nft_rule_attributes)
+ * @NFT_MSG_NEWSET: create a new set (enum nft_set_attributes)
+ * @NFT_MSG_GETSET: get a set (enum nft_set_attributes)
+ * @NFT_MSG_DELSET: delete a set (enum nft_set_attributes)
+ * @NFT_MSG_NEWSETELEM: create a new set element (enum nft_set_elem_attributes)
+ * @NFT_MSG_GETSETELEM: get a set element (enum nft_set_elem_attributes)
+ * @NFT_MSG_DELSETELEM: delete a set element (enum nft_set_elem_attributes)
  */
 enum nf_tables_msg_types {
 	NFT_MSG_NEWTABLE,
@@ -55,9 +61,20 @@ enum nf_tables_msg_types {
 	NFT_MSG_NEWRULE,
 	NFT_MSG_GETRULE,
 	NFT_MSG_DELRULE,
+	NFT_MSG_NEWSET,
+	NFT_MSG_GETSET,
+	NFT_MSG_DELSET,
+	NFT_MSG_NEWSETELEM,
+	NFT_MSG_GETSETELEM,
+	NFT_MSG_DELSETELEM,
 	NFT_MSG_MAX,
 };
 
+/**
+ * enum nft_list_attributes - nf_tables generic list netlink attributes
+ *
+ * @NFTA_LIST_ELEM: list element (NLA_NESTED)
+ */
 enum nft_list_attributes {
 	NFTA_LIST_UNPEC,
 	NFTA_LIST_ELEM,
@@ -127,6 +144,113 @@ enum nft_rule_attributes {
 };
 #define NFTA_RULE_MAX		(__NFTA_RULE_MAX - 1)
 
+/**
+ * enum nft_set_flags - nf_tables set flags
+ *
+ * @NFT_SET_ANONYMOUS: name allocation, automatic cleanup on unlink
+ * @NFT_SET_CONSTANT: set contents may not change while bound
+ * @NFT_SET_INTERVAL: set contains intervals
+ * @NFT_SET_MAP: set is used as a dictionary
+ */
+enum nft_set_flags {
+	NFT_SET_ANONYMOUS		= 0x1,
+	NFT_SET_CONSTANT		= 0x2,
+	NFT_SET_INTERVAL		= 0x4,
+	NFT_SET_MAP			= 0x8,
+};
+
+/**
+ * enum nft_set_attributes - nf_tables set netlink attributes
+ *
+ * @NFTA_SET_TABLE: table name (NLA_STRING)
+ * @NFTA_SET_NAME: set name (NLA_STRING)
+ * @NFTA_SET_FLAGS: bitmask of enum nft_set_flags (NLA_U32)
+ * @NFTA_SET_KEY_TYPE: key data type, informational purpose only (NLA_U32)
+ * @NFTA_SET_KEY_LEN: key data length (NLA_U32)
+ * @NFTA_SET_DATA_TYPE: mapping data type (NLA_U32)
+ * @NFTA_SET_DATA_LEN: mapping data length (NLA_U32)
+ */
+enum nft_set_attributes {
+	NFTA_SET_UNSPEC,
+	NFTA_SET_TABLE,
+	NFTA_SET_NAME,
+	NFTA_SET_FLAGS,
+	NFTA_SET_KEY_TYPE,
+	NFTA_SET_KEY_LEN,
+	NFTA_SET_DATA_TYPE,
+	NFTA_SET_DATA_LEN,
+	__NFTA_SET_MAX
+};
+#define NFTA_SET_MAX		(__NFTA_SET_MAX - 1)
+
+/**
+ * enum nft_set_elem_flags - nf_tables set element flags
+ *
+ * @NFT_SET_ELEM_INTERVAL_END: element ends the previous interval
+ */
+enum nft_set_elem_flags {
+	NFT_SET_ELEM_INTERVAL_END	= 0x1,
+};
+
+/**
+ * enum nft_set_elem_attributes - nf_tables set element netlink attributes
+ *
+ * @NFTA_SET_ELEM_KEY: key value (NLA_NESTED: nft_data)
+ * @NFTA_SET_ELEM_DATA: data value of mapping (NLA_NESTED: nft_data_attributes)
+ * @NFTA_SET_ELEM_FLAGS: bitmask of nft_set_elem_flags (NLA_U32)
+ */
+enum nft_set_elem_attributes {
+	NFTA_SET_ELEM_UNSPEC,
+	NFTA_SET_ELEM_KEY,
+	NFTA_SET_ELEM_DATA,
+	NFTA_SET_ELEM_FLAGS,
+	__NFTA_SET_ELEM_MAX
+};
+#define NFTA_SET_ELEM_MAX	(__NFTA_SET_ELEM_MAX - 1)
+
+/**
+ * enum nft_set_elem_list_attributes - nf_tables set element list netlink attributes
+ *
+ * @NFTA_SET_ELEM_LIST_TABLE: table of the set to be changed (NLA_STRING)
+ * @NFTA_SET_ELEM_LIST_SET: name of the set to be changed (NLA_STRING)
+ * @NFTA_SET_ELEM_LIST_ELEMENTS: list of set elements (NLA_NESTED: nft_set_elem_attributes)
+ */
+enum nft_set_elem_list_attributes {
+	NFTA_SET_ELEM_LIST_UNSPEC,
+	NFTA_SET_ELEM_LIST_TABLE,
+	NFTA_SET_ELEM_LIST_SET,
+	NFTA_SET_ELEM_LIST_ELEMENTS,
+	__NFTA_SET_ELEM_LIST_MAX
+};
+#define NFTA_SET_ELEM_LIST_MAX	(__NFTA_SET_ELEM_LIST_MAX - 1)
+
+/**
+ * enum nft_data_types - nf_tables data types
+ *
+ * @NFT_DATA_VALUE: generic data
+ * @NFT_DATA_VERDICT: netfilter verdict
+ *
+ * The type of data is usually determined by the kernel directly and is not
+ * explicitly specified by userspace. The only difference are sets, where
+ * userspace specifies the key and mapping data types.
+ *
+ * The values 0xffffff00-0xffffffff are reserved for internally used types.
+ * The remaining range can be freely used by userspace to encode types, all
+ * values are equivalent to NFT_DATA_VALUE.
+ */
+enum nft_data_types {
+	NFT_DATA_VALUE,
+	NFT_DATA_VERDICT	= 0xffffff00U,
+};
+
+#define NFT_DATA_RESERVED_MASK	0xffffff00U
+
+/**
+ * enum nft_data_attributes - nf_tables data netlink attributes
+ *
+ * @NFTA_DATA_VALUE: generic data (NLA_BINARY)
+ * @NFTA_DATA_VERDICT: nf_tables verdict (NLA_NESTED: nft_verdict_attributes)
+ */
 enum nft_data_attributes {
 	NFTA_DATA_UNSPEC,
 	NFTA_DATA_VALUE,
@@ -275,58 +399,21 @@ enum nft_cmp_attributes {
 };
 #define NFTA_CMP_MAX		(__NFTA_CMP_MAX - 1)
 
-enum nft_set_elem_flags {
-	NFT_SE_INTERVAL_END	= 0x1,
-};
-
-enum nft_set_elem_attributes {
-	NFTA_SE_UNSPEC,
-	NFTA_SE_KEY,
-	NFTA_SE_DATA,
-	NFTA_SE_FLAGS,
-	__NFTA_SE_MAX
-};
-#define NFTA_SE_MAX		(__NFTA_SE_MAX - 1)
-
-enum nft_set_flags {
-	NFT_SET_INTERVAL	= 0x1,
-	NFT_SET_MAP		= 0x2,
-};
-
-enum nft_set_attributes {
-	NFTA_SET_UNSPEC,
-	NFTA_SET_FLAGS,
-	NFTA_SET_SREG,
-	NFTA_SET_DREG,
-	NFTA_SET_KLEN,
-	NFTA_SET_DLEN,
-	NFTA_SET_ELEMENTS,
-	__NFTA_SET_MAX
-};
-#define NFTA_SET_MAX		(__NFTA_SET_MAX - 1)
-
-enum nft_hash_flags {
-	NFT_HASH_MAP		= 0x1,
-};
-
-enum nft_hash_elem_attributes {
-	NFTA_HE_UNSPEC,
-	NFTA_HE_KEY,
-	NFTA_HE_DATA,
-	__NFTA_HE_MAX
-};
-#define NFTA_HE_MAX		(__NFTA_HE_MAX - 1)
-
-enum nft_hash_attributes {
-	NFTA_HASH_UNSPEC,
-	NFTA_HASH_FLAGS,
-	NFTA_HASH_SREG,
-	NFTA_HASH_DREG,
-	NFTA_HASH_KLEN,
-	NFTA_HASH_ELEMENTS,
-	__NFTA_HASH_MAX
-};
-#define NFTA_HASH_MAX		(__NFTA_HASH_MAX - 1)
+/**
+ * enum nft_lookup_attributes - nf_tables set lookup expression netlink attributes
+ *
+ * @NFTA_LOOKUP_SET: name of the set where to look for (NLA_STRING)
+ * @NFTA_LOOKUP_SREG: source register of the data to look for (NLA_U32: nft_registers)
+ * @NFTA_LOOKUP_DREG: destination register (NLA_U32: nft_registers)
+ */
+enum nft_lookup_attributes {
+	NFTA_LOOKUP_UNSPEC,
+	NFTA_LOOKUP_SET,
+	NFTA_LOOKUP_SREG,
+	NFTA_LOOKUP_DREG,
+	__NFTA_LOOKUP_MAX
+};
+#define NFTA_LOOKUP_MAX		(__NFTA_LOOKUP_MAX - 1)
 
 /**
  * enum nft_payload_bases - nf_tables payload expression offset bases
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index c271e1af93b5..aa184a46bbf3 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -430,13 +430,13 @@ config NFT_CT
 	depends on NF_CONNTRACK
 	tristate "Netfilter nf_tables conntrack module"
 
-config NFT_SET
+config NFT_RBTREE
 	depends on NF_TABLES
-	tristate "Netfilter nf_tables set module"
+	tristate "Netfilter nf_tables rbtree set module"
 
 config NFT_HASH
 	depends on NF_TABLES
-	tristate "Netfilter nf_tables hash module"
+	tristate "Netfilter nf_tables hash set module"
 
 config NFT_COUNTER
 	depends on NF_TABLES
diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
index 1ca3f3932826..b6b78754e4cc 100644
--- a/net/netfilter/Makefile
+++ b/net/netfilter/Makefile
@@ -75,7 +75,7 @@ obj-$(CONFIG_NFT_META)		+= nft_meta.o
 obj-$(CONFIG_NFT_CT)		+= nft_ct.o
 obj-$(CONFIG_NFT_LIMIT)		+= nft_limit.o
 #nf_tables-objs			+= nft_meta_target.o
-obj-$(CONFIG_NFT_SET)		+= nft_set.o
+obj-$(CONFIG_NFT_RBTREE)	+= nft_rbtree.o
 obj-$(CONFIG_NFT_HASH)		+= nft_hash.o
 obj-$(CONFIG_NFT_COUNTER)	+= nft_counter.o
 obj-$(CONFIG_NFT_LOG)		+= nft_log.o
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 7d59c89c6c75..5092c817c222 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2007, 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2007-2009 Patrick McHardy <kaber@trash.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -315,6 +315,7 @@ static int nf_tables_newtable(struct sock *nlsk, struct sk_buff *skb,
 
 	nla_strlcpy(table->name, name, nla_len(name));
 	INIT_LIST_HEAD(&table->chains);
+	INIT_LIST_HEAD(&table->sets);
 
 	list_add_tail(&table->list, &afi->tables);
 	nf_tables_table_notify(skb, nlh, table, NFT_MSG_NEWTABLE, family);
@@ -409,6 +410,7 @@ again:
 	}
 
 	table->flags |= NFT_TABLE_BUILTIN;
+	INIT_LIST_HEAD(&table->sets);
 	list_add_tail(&table->list, &afi->tables);
 	nf_tables_table_notify(NULL, NULL, table, NFT_MSG_NEWTABLE, family);
 	list_for_each_entry(chain, &table->chains, list)
@@ -820,10 +822,14 @@ static int nf_tables_delchain(struct sock *nlsk, struct sk_buff *skb,
 }
 
 static void nft_ctx_init(struct nft_ctx *ctx,
+			 const struct sk_buff *skb,
+			 const struct nlmsghdr *nlh,
 			 const struct nft_af_info *afi,
 			 const struct nft_table *table,
 			 const struct nft_chain *chain)
 {
+	ctx->skb   = skb;
+	ctx->nlh   = nlh;
 	ctx->afi   = afi;
 	ctx->table = table;
 	ctx->chain = chain;
@@ -1301,7 +1307,7 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 	rule->handle = handle;
 	rule->dlen   = size;
 
-	nft_ctx_init(&ctx, afi, table, chain);
+	nft_ctx_init(&ctx, skb, nlh, afi, table, chain);
 	expr = nft_expr_first(rule);
 	for (i = 0; i < n; i++) {
 		err = nf_tables_newexpr(&ctx, &info[i], expr);
@@ -1392,6 +1398,939 @@ static int nf_tables_delrule(struct sock *nlsk, struct sk_buff *skb,
 	return 0;
 }
 
+/*
+ * Sets
+ */
+
+static LIST_HEAD(nf_tables_set_ops);
+
+int nft_register_set(struct nft_set_ops *ops)
+{
+	nfnl_lock(NFNL_SUBSYS_NFTABLES);
+	list_add_tail(&ops->list, &nf_tables_set_ops);
+	nfnl_unlock(NFNL_SUBSYS_NFTABLES);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(nft_register_set);
+
+void nft_unregister_set(struct nft_set_ops *ops)
+{
+	nfnl_lock(NFNL_SUBSYS_NFTABLES);
+	list_del(&ops->list);
+	nfnl_unlock(NFNL_SUBSYS_NFTABLES);
+}
+EXPORT_SYMBOL_GPL(nft_unregister_set);
+
+static const struct nft_set_ops *nft_select_set_ops(const struct nlattr * const nla[])
+{
+	const struct nft_set_ops *ops;
+	u32 features;
+
+#ifdef CONFIG_MODULES
+	if (list_empty(&nf_tables_set_ops)) {
+		nfnl_unlock(NFNL_SUBSYS_NFTABLES);
+		request_module("nft-set");
+		nfnl_lock(NFNL_SUBSYS_NFTABLES);
+		if (!list_empty(&nf_tables_set_ops))
+			return ERR_PTR(-EAGAIN);
+	}
+#endif
+	features = 0;
+	if (nla[NFTA_SET_FLAGS] != NULL) {
+		features = ntohl(nla_get_be32(nla[NFTA_SET_FLAGS]));
+		features &= NFT_SET_INTERVAL | NFT_SET_MAP;
+	}
+
+	// FIXME: implement selection properly
+	list_for_each_entry(ops, &nf_tables_set_ops, list) {
+		if ((ops->features & features) != features)
+			continue;
+		if (!try_module_get(ops->owner))
+			continue;
+		return ops;
+	}
+
+	return ERR_PTR(-EOPNOTSUPP);
+}
+
+static const struct nla_policy nft_set_policy[NFTA_SET_MAX + 1] = {
+	[NFTA_SET_TABLE]		= { .type = NLA_STRING },
+	[NFTA_SET_NAME]			= { .type = NLA_STRING },
+	[NFTA_SET_FLAGS]		= { .type = NLA_U32 },
+	[NFTA_SET_KEY_TYPE]		= { .type = NLA_U32 },
+	[NFTA_SET_KEY_LEN]		= { .type = NLA_U32 },
+	[NFTA_SET_DATA_TYPE]		= { .type = NLA_U32 },
+	[NFTA_SET_DATA_LEN]		= { .type = NLA_U32 },
+};
+
+static int nft_ctx_init_from_setattr(struct nft_ctx *ctx,
+				     const struct sk_buff *skb,
+				     const struct nlmsghdr *nlh,
+				     const struct nlattr * const nla[])
+{
+	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
+	const struct nft_af_info *afi;
+	const struct nft_table *table = NULL;
+
+	afi = nf_tables_afinfo_lookup(nfmsg->nfgen_family, false);
+	if (IS_ERR(afi))
+		return PTR_ERR(afi);
+
+	if (nla[NFTA_SET_TABLE] != NULL) {
+		table = nf_tables_table_lookup(afi, nla[NFTA_SET_TABLE], false);
+		if (IS_ERR(table))
+			return PTR_ERR(table);
+	}
+
+	nft_ctx_init(ctx, skb, nlh, afi, table, NULL);
+	return 0;
+}
+
+struct nft_set *nf_tables_set_lookup(const struct nft_table *table,
+				     const struct nlattr *nla)
+{
+	struct nft_set *set;
+
+	if (nla == NULL)
+		return ERR_PTR(-EINVAL);
+
+	list_for_each_entry(set, &table->sets, list) {
+		if (!nla_strcmp(nla, set->name))
+			return set;
+	}
+	return ERR_PTR(-ENOENT);
+}
+
+static int nf_tables_set_alloc_name(struct nft_ctx *ctx, struct nft_set *set,
+				    const char *name)
+{
+	const struct nft_set *i;
+	const char *p;
+	unsigned long *inuse;
+	unsigned int n = 0;
+
+	p = strnchr(name, IFNAMSIZ, '%');
+	if (p != NULL) {
+		if (p[1] != 'd' || strchr(p + 2, '%'))
+			return -EINVAL;
+
+		inuse = (unsigned long *)get_zeroed_page(GFP_KERNEL);
+		if (inuse == NULL)
+			return -ENOMEM;
+
+		list_for_each_entry(i, &ctx->table->sets, list) {
+			if (!sscanf(i->name, name, &n))
+				continue;
+			if (n < 0 || n > BITS_PER_LONG * PAGE_SIZE)
+				continue;
+			set_bit(n, inuse);
+		}
+
+		n = find_first_zero_bit(inuse, BITS_PER_LONG * PAGE_SIZE);
+		free_page((unsigned long)inuse);
+	}
+
+	snprintf(set->name, sizeof(set->name), name, n);
+	list_for_each_entry(i, &ctx->table->sets, list) {
+		if (!strcmp(set->name, i->name))
+			return -ENFILE;
+	}
+	return 0;
+}
+
+static int nf_tables_fill_set(struct sk_buff *skb, const struct nft_ctx *ctx,
+			      const struct nft_set *set, u16 event, u16 flags)
+{
+	struct nfgenmsg *nfmsg;
+	struct nlmsghdr *nlh;
+	u32 portid = NETLINK_CB(ctx->skb).portid;
+	u32 seq = ctx->nlh->nlmsg_seq;
+
+	event |= NFNL_SUBSYS_NFTABLES << 8;
+	nlh = nlmsg_put(skb, portid, seq, event, sizeof(struct nfgenmsg),
+			flags);
+	if (nlh == NULL)
+		goto nla_put_failure;
+
+	nfmsg = nlmsg_data(nlh);
+	nfmsg->nfgen_family	= ctx->afi->family;
+	nfmsg->version		= NFNETLINK_V0;
+	nfmsg->res_id		= 0;
+
+	if (nla_put_string(skb, NFTA_SET_TABLE, ctx->table->name))
+		goto nla_put_failure;
+	if (nla_put_string(skb, NFTA_SET_NAME, set->name))
+		goto nla_put_failure;
+	if (set->flags != 0)
+		if (nla_put_be32(skb, NFTA_SET_FLAGS, htonl(set->flags)))
+			goto nla_put_failure;
+
+	if (nla_put_be32(skb, NFTA_SET_KEY_TYPE, htonl(set->ktype)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_SET_KEY_LEN, htonl(set->klen)))
+		goto nla_put_failure;
+	if (set->flags & NFT_SET_MAP) {
+		if (nla_put_be32(skb, NFTA_SET_DATA_TYPE, htonl(set->dtype)))
+			goto nla_put_failure;
+		if (nla_put_be32(skb, NFTA_SET_DATA_LEN, htonl(set->dlen)))
+			goto nla_put_failure;
+	}
+
+	return nlmsg_end(skb, nlh);
+
+nla_put_failure:
+	nlmsg_trim(skb, nlh);
+	return -1;
+}
+
+static int nf_tables_set_notify(const struct nft_ctx *ctx,
+				const struct nft_set *set,
+				int event)
+{
+	struct sk_buff *skb;
+	u32 portid = NETLINK_CB(ctx->skb).portid;
+	struct net *net = sock_net(ctx->skb->sk);
+	bool report;
+	int err;
+
+	report = nlmsg_report(ctx->nlh);
+	if (!report && !nfnetlink_has_listeners(net, NFNLGRP_NFTABLES))
+		return 0;
+
+	err = -ENOBUFS;
+	skb = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (skb == NULL)
+		goto err;
+
+	err = nf_tables_fill_set(skb, ctx, set, event, 0);
+	if (err < 0) {
+		kfree_skb(skb);
+		goto err;
+	}
+
+	err = nfnetlink_send(skb, net, portid, NFNLGRP_NFTABLES, report,
+			     GFP_KERNEL);
+err:
+	if (err < 0)
+		nfnetlink_set_err(net, portid, NFNLGRP_NFTABLES, err);
+	return err;
+}
+
+static int nf_tables_dump_sets_table(struct nft_ctx *ctx, struct sk_buff *skb,
+				     struct netlink_callback *cb)
+{
+	const struct nft_set *set;
+	unsigned int idx = 0, s_idx = cb->args[0];
+
+	if (cb->args[1])
+		return skb->len;
+
+	list_for_each_entry(set, &ctx->table->sets, list) {
+		if (idx < s_idx)
+			goto cont;
+		if (nf_tables_fill_set(skb, ctx, set, NFT_MSG_NEWSET,
+				       NLM_F_MULTI) < 0) {
+			cb->args[0] = idx;
+			goto done;
+		}
+cont:
+		idx++;
+	}
+	cb->args[1] = 1;
+done:
+	return skb->len;
+}
+
+static int nf_tables_dump_sets_all(struct nft_ctx *ctx, struct sk_buff *skb,
+				   struct netlink_callback *cb)
+{
+	const struct nft_set *set;
+	unsigned int idx = 0, s_idx = cb->args[0];
+	struct nft_table *table, *cur_table = (struct nft_table *)cb->args[2];
+
+	if (cb->args[1])
+		return skb->len;
+
+	list_for_each_entry(table, &ctx->afi->tables, list) {
+		if (cur_table && cur_table != table)
+			continue;
+
+		ctx->table = table;
+		list_for_each_entry(set, &ctx->table->sets, list) {
+			if (idx < s_idx)
+				goto cont;
+			if (nf_tables_fill_set(skb, ctx, set, NFT_MSG_NEWSET,
+					       NLM_F_MULTI) < 0) {
+				cb->args[0] = idx;
+				cb->args[2] = (unsigned long) table;
+				goto done;
+			}
+cont:
+			idx++;
+		}
+	}
+	cb->args[1] = 1;
+done:
+	return skb->len;
+}
+
+static int nf_tables_dump_sets(struct sk_buff *skb, struct netlink_callback *cb)
+{
+	const struct nfgenmsg *nfmsg = nlmsg_data(cb->nlh);
+	struct nlattr *nla[NFTA_SET_MAX + 1];
+	struct nft_ctx ctx;
+	int err, ret;
+
+	err = nlmsg_parse(cb->nlh, sizeof(*nfmsg), nla, NFTA_SET_MAX,
+			  nft_set_policy);
+	if (err < 0)
+		return err;
+
+	err = nft_ctx_init_from_setattr(&ctx, cb->skb, cb->nlh, (void *)nla);
+	if (err < 0)
+		return err;
+
+	if (ctx.table == NULL)
+		ret = nf_tables_dump_sets_all(&ctx, skb, cb);
+	else
+		ret = nf_tables_dump_sets_table(&ctx, skb, cb);
+
+	return ret;
+}
+
+static int nf_tables_getset(struct sock *nlsk, struct sk_buff *skb,
+			    const struct nlmsghdr *nlh,
+			    const struct nlattr * const nla[])
+{
+	const struct nft_set *set;
+	struct nft_ctx ctx;
+	struct sk_buff *skb2;
+	int err;
+
+	/* Verify existance before starting dump */
+	err = nft_ctx_init_from_setattr(&ctx, skb, nlh, nla);
+	if (err < 0)
+		return err;
+
+	if (nlh->nlmsg_flags & NLM_F_DUMP) {
+		struct netlink_dump_control c = {
+			.dump = nf_tables_dump_sets,
+		};
+		return netlink_dump_start(nlsk, skb, nlh, &c);
+	}
+
+	set = nf_tables_set_lookup(ctx.table, nla[NFTA_SET_NAME]);
+	if (IS_ERR(set))
+		return PTR_ERR(set);
+
+	skb2 = alloc_skb(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (skb2 == NULL)
+		return -ENOMEM;
+
+	err = nf_tables_fill_set(skb2, &ctx, set, NFT_MSG_NEWSET, 0);
+	if (err < 0)
+		goto err;
+
+	return nlmsg_unicast(nlsk, skb2, NETLINK_CB(skb).portid);
+
+err:
+	kfree_skb(skb2);
+	return err;
+}
+
+static int nf_tables_newset(struct sock *nlsk, struct sk_buff *skb,
+			    const struct nlmsghdr *nlh,
+			    const struct nlattr * const nla[])
+{
+	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
+	const struct nft_set_ops *ops;
+	const struct nft_af_info *afi;
+	struct nft_table *table;
+	struct nft_set *set;
+	struct nft_ctx ctx;
+	char name[IFNAMSIZ];
+	unsigned int size;
+	bool create;
+	u32 ktype, klen, dlen, dtype, flags;
+	int err;
+
+	if (nla[NFTA_SET_TABLE] == NULL ||
+	    nla[NFTA_SET_NAME] == NULL ||
+	    nla[NFTA_SET_KEY_LEN] == NULL)
+		return -EINVAL;
+
+	ktype = NFT_DATA_VALUE;
+	if (nla[NFTA_SET_KEY_TYPE] != NULL) {
+		ktype = ntohl(nla_get_be32(nla[NFTA_SET_KEY_TYPE]));
+		if ((ktype & NFT_DATA_RESERVED_MASK) == NFT_DATA_RESERVED_MASK)
+			return -EINVAL;
+	}
+
+	klen = ntohl(nla_get_be32(nla[NFTA_SET_KEY_LEN]));
+	if (klen == 0 || klen > FIELD_SIZEOF(struct nft_data, data))
+		return -EINVAL;
+
+	flags = 0;
+	if (nla[NFTA_SET_FLAGS] != NULL) {
+		flags = ntohl(nla_get_be32(nla[NFTA_SET_FLAGS]));
+		if (flags & ~(NFT_SET_ANONYMOUS | NFT_SET_CONSTANT |
+			      NFT_SET_INTERVAL | NFT_SET_MAP))
+			return -EINVAL;
+	}
+
+	dtype = 0;
+	dlen  = 0;
+	if (nla[NFTA_SET_DATA_TYPE] != NULL) {
+		if (!(flags & NFT_SET_MAP))
+			return -EINVAL;
+
+		dtype = ntohl(nla_get_be32(nla[NFTA_SET_DATA_TYPE]));
+		if ((dtype & NFT_DATA_RESERVED_MASK) == NFT_DATA_RESERVED_MASK &&
+		    dtype != NFT_DATA_VERDICT)
+			return -EINVAL;
+
+		if (dtype != NFT_DATA_VERDICT) {
+			if (nla[NFTA_SET_DATA_LEN] == NULL)
+				return -EINVAL;
+			dlen = ntohl(nla_get_be32(nla[NFTA_SET_DATA_LEN]));
+			if (dlen == 0 ||
+			    dlen > FIELD_SIZEOF(struct nft_data, data))
+				return -EINVAL;
+		} else
+			dlen = sizeof(struct nft_data);
+	} else if (flags & NFT_SET_MAP)
+		return -EINVAL;
+
+	create = nlh->nlmsg_flags & NLM_F_CREATE ? true : false;
+
+	afi = nf_tables_afinfo_lookup(nfmsg->nfgen_family, create);
+	if (IS_ERR(afi))
+		return PTR_ERR(afi);
+
+	table = nf_tables_table_lookup(afi, nla[NFTA_SET_TABLE], create);
+	if (IS_ERR(table))
+		return PTR_ERR(table);
+
+	nft_ctx_init(&ctx, skb, nlh, afi, table, NULL);
+
+	set = nf_tables_set_lookup(table, nla[NFTA_SET_NAME]);
+	if (IS_ERR(set)) {
+		if (PTR_ERR(set) != -ENOENT)
+			return PTR_ERR(set);
+		set = NULL;
+	}
+
+	if (set != NULL) {
+		if (nlh->nlmsg_flags & NLM_F_EXCL)
+			return -EEXIST;
+		if (nlh->nlmsg_flags & NLM_F_REPLACE)
+			return -EOPNOTSUPP;
+		return 0;
+	}
+
+	if (!(nlh->nlmsg_flags & NLM_F_CREATE))
+		return -ENOENT;
+
+	ops = nft_select_set_ops(nla);
+	if (IS_ERR(ops))
+		return PTR_ERR(ops);
+
+	size = 0;
+	if (ops->privsize != NULL)
+		size = ops->privsize(nla);
+
+	err = -ENOMEM;
+	set = kzalloc(sizeof(*set) + size, GFP_KERNEL);
+	if (set == NULL)
+		goto err1;
+
+	nla_strlcpy(name, nla[NFTA_SET_NAME], sizeof(set->name));
+	err = nf_tables_set_alloc_name(&ctx, set, name);
+	if (err < 0)
+		goto err2;
+
+	INIT_LIST_HEAD(&set->bindings);
+	set->ops   = ops;
+	set->ktype = ktype;
+	set->klen  = klen;
+	set->dtype = dtype;
+	set->dlen  = dlen;
+	set->flags = flags;
+
+	err = ops->init(set, nla);
+	if (err < 0)
+		goto err2;
+
+	list_add_tail(&set->list, &table->sets);
+	nf_tables_set_notify(&ctx, set, NFT_MSG_NEWSET);
+	return 0;
+
+err2:
+	kfree(set);
+err1:
+	module_put(ops->owner);
+	return err;
+}
+
+static void nf_tables_set_destroy(const struct nft_ctx *ctx, struct nft_set *set)
+{
+	list_del(&set->list);
+	if (!(set->flags & NFT_SET_ANONYMOUS))
+		nf_tables_set_notify(ctx, set, NFT_MSG_DELSET);
+
+	set->ops->destroy(set);
+	module_put(set->ops->owner);
+	kfree(set);
+}
+
+static int nf_tables_delset(struct sock *nlsk, struct sk_buff *skb,
+			    const struct nlmsghdr *nlh,
+			    const struct nlattr * const nla[])
+{
+	struct nft_set *set;
+	struct nft_ctx ctx;
+	int err;
+
+	if (nla[NFTA_SET_TABLE] == NULL)
+		return -EINVAL;
+
+	err = nft_ctx_init_from_setattr(&ctx, skb, nlh, nla);
+	if (err < 0)
+		return err;
+
+	set = nf_tables_set_lookup(ctx.table, nla[NFTA_SET_NAME]);
+	if (IS_ERR(set))
+		return PTR_ERR(set);
+	if (!list_empty(&set->bindings))
+		return -EBUSY;
+
+	nf_tables_set_destroy(&ctx, set);
+	return 0;
+}
+
+static int nf_tables_bind_check_setelem(const struct nft_ctx *ctx,
+					const struct nft_set *set,
+					const struct nft_set_iter *iter,
+					const struct nft_set_elem *elem)
+{
+	enum nft_registers dreg;
+
+	dreg = nft_type_to_reg(set->dtype);
+	return nft_validate_data_load(ctx, dreg, &elem->data, set->dtype);
+}
+
+int nf_tables_bind_set(const struct nft_ctx *ctx, struct nft_set *set,
+		       struct nft_set_binding *binding)
+{
+	struct nft_set_binding *i;
+	struct nft_set_iter iter;
+
+	if (!list_empty(&set->bindings) && set->flags & NFT_SET_ANONYMOUS)
+		return -EBUSY;
+
+	if (set->flags & NFT_SET_MAP) {
+		/* If the set is already bound to the same chain all
+		 * jumps are already validated for that chain.
+		 */
+		list_for_each_entry(i, &set->bindings, list) {
+			if (i->chain == binding->chain)
+				goto bind;
+		}
+
+		iter.skip 	= 0;
+		iter.count	= 0;
+		iter.err	= 0;
+		iter.fn		= nf_tables_bind_check_setelem;
+
+		set->ops->walk(ctx, set, &iter);
+		if (iter.err < 0) {
+			/* Destroy anonymous sets if binding fails */
+			if (set->flags & NFT_SET_ANONYMOUS)
+				nf_tables_set_destroy(ctx, set);
+
+			return iter.err;
+		}
+	}
+bind:
+	binding->chain = ctx->chain;
+	list_add_tail(&binding->list, &set->bindings);
+	return 0;
+}
+
+void nf_tables_unbind_set(const struct nft_ctx *ctx, struct nft_set *set,
+			  struct nft_set_binding *binding)
+{
+	list_del(&binding->list);
+
+	if (list_empty(&set->bindings) && set->flags & NFT_SET_ANONYMOUS)
+		nf_tables_set_destroy(ctx, set);
+}
+
+/*
+ * Set elements
+ */
+
+static const struct nla_policy nft_set_elem_policy[NFTA_SET_ELEM_MAX + 1] = {
+	[NFTA_SET_ELEM_KEY]		= { .type = NLA_NESTED },
+	[NFTA_SET_ELEM_DATA]		= { .type = NLA_NESTED },
+	[NFTA_SET_ELEM_FLAGS]		= { .type = NLA_U32 },
+};
+
+static const struct nla_policy nft_set_elem_list_policy[NFTA_SET_ELEM_LIST_MAX + 1] = {
+	[NFTA_SET_ELEM_LIST_TABLE]	= { .type = NLA_STRING },
+	[NFTA_SET_ELEM_LIST_SET]	= { .type = NLA_STRING },
+	[NFTA_SET_ELEM_LIST_ELEMENTS]	= { .type = NLA_NESTED },
+};
+
+static int nft_ctx_init_from_elemattr(struct nft_ctx *ctx,
+				      const struct sk_buff *skb,
+				      const struct nlmsghdr *nlh,
+				      const struct nlattr * const nla[])
+{
+	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
+	const struct nft_af_info *afi;
+	const struct nft_table *table;
+
+	afi = nf_tables_afinfo_lookup(nfmsg->nfgen_family, false);
+	if (IS_ERR(afi))
+		return PTR_ERR(afi);
+
+	table = nf_tables_table_lookup(afi, nla[NFTA_SET_ELEM_LIST_TABLE], false);
+	if (IS_ERR(table))
+		return PTR_ERR(table);
+
+	nft_ctx_init(ctx, skb, nlh, afi, table, NULL);
+	return 0;
+}
+
+static int nf_tables_fill_setelem(struct sk_buff *skb,
+				  const struct nft_set *set,
+				  const struct nft_set_elem *elem)
+{
+	unsigned char *b = skb_tail_pointer(skb);
+	struct nlattr *nest;
+
+	nest = nla_nest_start(skb, NFTA_LIST_ELEM);
+	if (nest == NULL)
+		goto nla_put_failure;
+
+	if (nft_data_dump(skb, NFTA_SET_ELEM_KEY, &elem->key, NFT_DATA_VALUE,
+			  set->klen) < 0)
+		goto nla_put_failure;
+
+	if (set->flags & NFT_SET_MAP &&
+	    !(elem->flags & NFT_SET_ELEM_INTERVAL_END) &&
+	    nft_data_dump(skb, NFTA_SET_ELEM_DATA, &elem->data,
+			  set->dtype == NFT_DATA_VERDICT ? NFT_DATA_VERDICT : NFT_DATA_VALUE,
+			  set->dlen) < 0)
+		goto nla_put_failure;
+
+	if (elem->flags != 0)
+		if (nla_put_be32(skb, NFTA_SET_ELEM_FLAGS, htonl(elem->flags)))
+			goto nla_put_failure;
+
+	nla_nest_end(skb, nest);
+	return 0;
+
+nla_put_failure:
+	nlmsg_trim(skb, b);
+	return -EMSGSIZE;
+}
+
+struct nft_set_dump_args {
+	const struct netlink_callback	*cb;
+	struct nft_set_iter		iter;
+	struct sk_buff			*skb;
+};
+
+static int nf_tables_dump_setelem(const struct nft_ctx *ctx,
+				  const struct nft_set *set,
+				  const struct nft_set_iter *iter,
+				  const struct nft_set_elem *elem)
+{
+	struct nft_set_dump_args *args;
+
+	args = container_of(iter, struct nft_set_dump_args, iter);
+	return nf_tables_fill_setelem(args->skb, set, elem);
+}
+
+static int nf_tables_dump_set(struct sk_buff *skb, struct netlink_callback *cb)
+{
+	const struct nft_set *set;
+	struct nft_set_dump_args args;
+	struct nft_ctx ctx;
+	struct nlattr *nla[NFTA_SET_ELEM_LIST_MAX + 1];
+	struct nfgenmsg *nfmsg;
+	struct nlmsghdr *nlh;
+	struct nlattr *nest;
+	u32 portid, seq;
+	int event, err;
+
+	nfmsg = nlmsg_data(cb->nlh);
+	err = nlmsg_parse(cb->nlh, sizeof(*nfmsg), nla, NFTA_SET_ELEM_LIST_MAX,
+			  nft_set_elem_list_policy);
+	if (err < 0)
+		return err;
+
+	err = nft_ctx_init_from_elemattr(&ctx, cb->skb, cb->nlh, (void *)nla);
+	if (err < 0)
+		return err;
+
+	set = nf_tables_set_lookup(ctx.table, nla[NFTA_SET_ELEM_LIST_SET]);
+	if (IS_ERR(set))
+		return PTR_ERR(set);
+
+	event  = NFT_MSG_NEWSETELEM;
+	event |= NFNL_SUBSYS_NFTABLES << 8;
+	portid = NETLINK_CB(cb->skb).portid;
+	seq    = cb->nlh->nlmsg_seq;
+
+	nlh = nlmsg_put(skb, portid, seq, event, sizeof(struct nfgenmsg),
+			NLM_F_MULTI);
+	if (nlh == NULL)
+		goto nla_put_failure;
+
+	nfmsg = nlmsg_data(nlh);
+	nfmsg->nfgen_family = NFPROTO_UNSPEC;
+	nfmsg->version      = NFNETLINK_V0;
+	nfmsg->res_id       = 0;
+
+	if (nla_put_string(skb, NFTA_SET_ELEM_LIST_TABLE, ctx.table->name))
+		goto nla_put_failure;
+	if (nla_put_string(skb, NFTA_SET_ELEM_LIST_SET, set->name))
+		goto nla_put_failure;
+
+	nest = nla_nest_start(skb, NFTA_SET_ELEM_LIST_ELEMENTS);
+	if (nest == NULL)
+		goto nla_put_failure;
+
+	args.cb		= cb;
+	args.skb	= skb;
+	args.iter.skip	= cb->args[0];
+	args.iter.count	= 0;
+	args.iter.err   = 0;
+	args.iter.fn	= nf_tables_dump_setelem;
+	set->ops->walk(&ctx, set, &args.iter);
+
+	nla_nest_end(skb, nest);
+	nlmsg_end(skb, nlh);
+
+	if (args.iter.err && args.iter.err != -EMSGSIZE)
+		return args.iter.err;
+	if (args.iter.count == cb->args[0])
+		return 0;
+
+	cb->args[0] = args.iter.count;
+	return skb->len;
+
+nla_put_failure:
+	return -ENOSPC;
+}
+
+static int nf_tables_getsetelem(struct sock *nlsk, struct sk_buff *skb,
+				const struct nlmsghdr *nlh,
+				const struct nlattr * const nla[])
+{
+	const struct nft_set *set;
+	struct nft_ctx ctx;
+	int err;
+
+	err = nft_ctx_init_from_elemattr(&ctx, skb, nlh, nla);
+	if (err < 0)
+		return err;
+
+	set = nf_tables_set_lookup(ctx.table, nla[NFTA_SET_ELEM_LIST_SET]);
+	if (IS_ERR(set))
+		return PTR_ERR(set);
+
+	if (nlh->nlmsg_flags & NLM_F_DUMP) {
+		struct netlink_dump_control c = {
+			.dump = nf_tables_dump_set,
+		};
+		return netlink_dump_start(nlsk, skb, nlh, &c);
+	}
+	return -EOPNOTSUPP;
+}
+
+static int nft_add_set_elem(const struct nft_ctx *ctx, struct nft_set *set,
+			    const struct nlattr *attr)
+{
+	struct nlattr *nla[NFTA_SET_ELEM_MAX + 1];
+	struct nft_data_desc d1, d2;
+	struct nft_set_elem elem;
+	struct nft_set_binding *binding;
+	enum nft_registers dreg;
+	int err;
+
+	err = nla_parse_nested(nla, NFTA_SET_ELEM_MAX, attr,
+			       nft_set_elem_policy);
+	if (err < 0)
+		return err;
+
+	if (nla[NFTA_SET_ELEM_KEY] == NULL)
+		return -EINVAL;
+
+	elem.flags = 0;
+	if (nla[NFTA_SET_ELEM_FLAGS] != NULL) {
+		elem.flags = ntohl(nla_get_be32(nla[NFTA_SET_ELEM_FLAGS]));
+		if (elem.flags & ~NFT_SET_ELEM_INTERVAL_END)
+			return -EINVAL;
+	}
+
+	if (set->flags & NFT_SET_MAP) {
+		if (nla[NFTA_SET_ELEM_DATA] == NULL &&
+		    !(elem.flags & NFT_SET_ELEM_INTERVAL_END))
+			return -EINVAL;
+	} else {
+		if (nla[NFTA_SET_ELEM_DATA] != NULL)
+			return -EINVAL;
+	}
+
+	err = nft_data_init(ctx, &elem.key, &d1, nla[NFTA_SET_ELEM_KEY]);
+	if (err < 0)
+		goto err1;
+	err = -EINVAL;
+	if (d1.type != NFT_DATA_VALUE || d1.len != set->klen)
+		goto err2;
+
+	err = -EEXIST;
+	if (set->ops->get(set, &elem) == 0)
+		goto err2;
+
+	if (nla[NFTA_SET_ELEM_DATA] != NULL) {
+		err = nft_data_init(ctx, &elem.data, &d2, nla[NFTA_SET_ELEM_DATA]);
+		if (err < 0)
+			goto err2;
+
+		err = -EINVAL;
+		if (set->dtype != NFT_DATA_VERDICT && d2.len != set->dlen)
+			goto err3;
+
+		dreg = nft_type_to_reg(set->dtype);
+		list_for_each_entry(binding, &set->bindings, list) {
+			struct nft_ctx bind_ctx = {
+				.afi	= ctx->afi,
+				.table	= ctx->table,
+				.chain	= binding->chain,
+			};
+
+			err = nft_validate_data_load(&bind_ctx, dreg,
+						     &elem.data, d2.type);
+			if (err < 0)
+				goto err3;
+		}
+	}
+
+	err = set->ops->insert(set, &elem);
+	if (err < 0)
+		goto err3;
+
+	return 0;
+
+err3:
+	if (nla[NFTA_SET_ELEM_DATA] != NULL)
+		nft_data_uninit(&elem.data, d2.type);
+err2:
+	nft_data_uninit(&elem.key, d1.type);
+err1:
+	return err;
+}
+
+static int nf_tables_newsetelem(struct sock *nlsk, struct sk_buff *skb,
+				const struct nlmsghdr *nlh,
+				const struct nlattr * const nla[])
+{
+	const struct nlattr *attr;
+	struct nft_set *set;
+	struct nft_ctx ctx;
+	int rem, err;
+
+	err = nft_ctx_init_from_elemattr(&ctx, skb, nlh, nla);
+	if (err < 0)
+		return err;
+
+	set = nf_tables_set_lookup(ctx.table, nla[NFTA_SET_ELEM_LIST_SET]);
+	if (IS_ERR(set))
+		return PTR_ERR(set);
+	if (!list_empty(&set->bindings) && set->flags & NFT_SET_CONSTANT)
+		return -EBUSY;
+
+	nla_for_each_nested(attr, nla[NFTA_SET_ELEM_LIST_ELEMENTS], rem) {
+		err = nft_add_set_elem(&ctx, set, attr);
+		if (err < 0)
+			return err;
+	}
+	return 0;
+}
+
+static int nft_del_setelem(const struct nft_ctx *ctx, struct nft_set *set,
+			   const struct nlattr *attr)
+{
+	struct nlattr *nla[NFTA_SET_ELEM_MAX + 1];
+	struct nft_data_desc desc;
+	struct nft_set_elem elem;
+	int err;
+
+	err = nla_parse_nested(nla, NFTA_SET_ELEM_MAX, attr,
+			       nft_set_elem_policy);
+	if (err < 0)
+		goto err1;
+
+	err = -EINVAL;
+	if (nla[NFTA_SET_ELEM_KEY] == NULL)
+		goto err1;
+
+	err = nft_data_init(ctx, &elem.key, &desc, nla[NFTA_SET_ELEM_KEY]);
+	if (err < 0)
+		goto err1;
+
+	err = -EINVAL;
+	if (desc.type != NFT_DATA_VALUE || desc.len != set->klen)
+		goto err2;
+
+	err = set->ops->get(set, &elem);
+	if (err < 0)
+		goto err2;
+
+	set->ops->remove(set, &elem);
+
+	nft_data_uninit(&elem.key, NFT_DATA_VALUE);
+	if (set->flags & NFT_SET_MAP)
+		nft_data_uninit(&elem.data, set->dtype);
+
+err2:
+	nft_data_uninit(&elem.key, desc.type);
+err1:
+	return err;
+}
+
+static int nf_tables_delsetelem(struct sock *nlsk, struct sk_buff *skb,
+				const struct nlmsghdr *nlh,
+				const struct nlattr * const nla[])
+{
+	const struct nlattr *attr;
+	struct nft_set *set;
+	struct nft_ctx ctx;
+	int rem, err;
+
+	err = nft_ctx_init_from_elemattr(&ctx, skb, nlh, nla);
+	if (err < 0)
+		return err;
+
+	set = nf_tables_set_lookup(ctx.table, nla[NFTA_SET_ELEM_LIST_SET]);
+	if (IS_ERR(set))
+		return PTR_ERR(set);
+	if (!list_empty(&set->bindings) && set->flags & NFT_SET_CONSTANT)
+		return -EBUSY;
+
+	nla_for_each_nested(attr, nla[NFTA_SET_ELEM_LIST_ELEMENTS], rem) {
+		err = nft_del_setelem(&ctx, set, attr);
+		if (err < 0)
+			return err;
+	}
+	return 0;
+}
+
 static const struct nfnl_callback nf_tables_cb[NFT_MSG_MAX] = {
 	[NFT_MSG_NEWTABLE] = {
 		.call		= nf_tables_newtable,
@@ -1438,6 +2377,36 @@ static const struct nfnl_callback nf_tables_cb[NFT_MSG_MAX] = {
 		.attr_count	= NFTA_RULE_MAX,
 		.policy		= nft_rule_policy,
 	},
+	[NFT_MSG_NEWSET] = {
+		.call		= nf_tables_newset,
+		.attr_count	= NFTA_SET_MAX,
+		.policy		= nft_set_policy,
+	},
+	[NFT_MSG_GETSET] = {
+		.call		= nf_tables_getset,
+		.attr_count	= NFTA_SET_MAX,
+		.policy		= nft_set_policy,
+	},
+	[NFT_MSG_DELSET] = {
+		.call		= nf_tables_delset,
+		.attr_count	= NFTA_SET_MAX,
+		.policy		= nft_set_policy,
+	},
+	[NFT_MSG_NEWSETELEM] = {
+		.call		= nf_tables_newsetelem,
+		.attr_count	= NFTA_SET_ELEM_LIST_MAX,
+		.policy		= nft_set_elem_list_policy,
+	},
+	[NFT_MSG_GETSETELEM] = {
+		.call		= nf_tables_getsetelem,
+		.attr_count	= NFTA_SET_ELEM_LIST_MAX,
+		.policy		= nft_set_elem_list_policy,
+	},
+	[NFT_MSG_DELSETELEM] = {
+		.call		= nf_tables_delsetelem,
+		.attr_count	= NFTA_SET_ELEM_LIST_MAX,
+		.policy		= nft_set_elem_list_policy,
+	},
 };
 
 static const struct nfnetlink_subsystem nf_tables_subsys = {
@@ -1447,6 +2416,90 @@ static const struct nfnetlink_subsystem nf_tables_subsys = {
 	.cb		= nf_tables_cb,
 };
 
+/*
+ * Loop detection - walk through the ruleset beginning at the destination chain
+ * of a new jump until either the source chain is reached (loop) or all
+ * reachable chains have been traversed.
+ *
+ * The loop check is performed whenever a new jump verdict is added to an
+ * expression or verdict map or a verdict map is bound to a new chain.
+ */
+
+static int nf_tables_check_loops(const struct nft_ctx *ctx,
+				 const struct nft_chain *chain);
+
+static int nf_tables_loop_check_setelem(const struct nft_ctx *ctx,
+					const struct nft_set *set,
+					const struct nft_set_iter *iter,
+					const struct nft_set_elem *elem)
+{
+	switch (elem->data.verdict) {
+	case NFT_JUMP:
+	case NFT_GOTO:
+		return nf_tables_check_loops(ctx, elem->data.chain);
+	default:
+		return 0;
+	}
+}
+
+static int nf_tables_check_loops(const struct nft_ctx *ctx,
+				 const struct nft_chain *chain)
+{
+	const struct nft_rule *rule;
+	const struct nft_expr *expr, *last;
+	const struct nft_data *data;
+	const struct nft_set *set;
+	struct nft_set_binding *binding;
+	struct nft_set_iter iter;
+	int err;
+
+	if (ctx->chain == chain)
+		return -ELOOP;
+
+	list_for_each_entry(rule, &chain->rules, list) {
+		nft_rule_for_each_expr(expr, last, rule) {
+			if (!expr->ops->get_verdict)
+				continue;
+
+			data = expr->ops->get_verdict(expr);
+			if (data == NULL)
+				break;
+
+			switch (data->verdict) {
+			case NFT_JUMP:
+			case NFT_GOTO:
+				err = nf_tables_check_loops(ctx, data->chain);
+				if (err < 0)
+					return err;
+			default:
+				break;
+			}
+		}
+	}
+
+	list_for_each_entry(set, &ctx->table->sets, list) {
+		if (!(set->flags & NFT_SET_MAP) ||
+		    set->dtype != NFT_DATA_VERDICT)
+			continue;
+
+		list_for_each_entry(binding, &set->bindings, list) {
+			if (binding->chain != chain)
+				continue;
+
+			iter.skip 	= 0;
+			iter.count	= 0;
+			iter.err	= 0;
+			iter.fn		= nf_tables_loop_check_setelem;
+
+			set->ops->walk(ctx, set, &iter);
+			if (iter.err < 0)
+				return iter.err;
+		}
+	}
+
+	return 0;
+}
+
 /**
  *	nft_validate_input_register - validate an expressions' input register
  *
@@ -1500,11 +2553,25 @@ int nft_validate_data_load(const struct nft_ctx *ctx, enum nft_registers reg,
 			   const struct nft_data *data,
 			   enum nft_data_types type)
 {
+	int err;
+
 	switch (reg) {
 	case NFT_REG_VERDICT:
 		if (data == NULL || type != NFT_DATA_VERDICT)
 			return -EINVAL;
-		// FIXME: do loop detection
+
+		if (data->verdict == NFT_GOTO || data->verdict == NFT_JUMP) {
+			err = nf_tables_check_loops(ctx, data->chain);
+			if (err < 0)
+				return err;
+
+			if (ctx->chain->level + 1 > data->chain->level) {
+				if (ctx->chain->level + 1 == NFT_JUMP_STACK_SIZE)
+					return -EMLINK;
+				data->chain->level = ctx->chain->level + 1;
+			}
+		}
+
 		return 0;
 	default:
 		if (data != NULL && type != NFT_DATA_VALUE)
@@ -1555,11 +2622,6 @@ static int nft_verdict_init(const struct nft_ctx *ctx, struct nft_data *data,
 		if (chain->flags & NFT_BASE_CHAIN)
 			return -EOPNOTSUPP;
 
-		if (ctx->chain->level + 1 > chain->level) {
-			if (ctx->chain->level + 1 == 16)
-				return -EMLINK;
-			chain->level = ctx->chain->level + 1;
-		}
 		chain->use++;
 		data->chain = chain;
 		desc->len = sizeof(data);
diff --git a/net/netfilter/nf_tables_core.c b/net/netfilter/nf_tables_core.c
index bc7fb85d4002..fd0ecd3255c1 100644
--- a/net/netfilter/nf_tables_core.c
+++ b/net/netfilter/nf_tables_core.c
@@ -20,8 +20,6 @@
 #include <net/netfilter/nf_tables_core.h>
 #include <net/netfilter/nf_tables.h>
 
-#define NFT_JUMP_STACK_SIZE	16
-
 unsigned int nft_do_chain(const struct nf_hook_ops *ops,
 			  struct sk_buff *skb,
 			  const struct net_device *in,
diff --git a/net/netfilter/nft_hash.c b/net/netfilter/nft_hash.c
index 67cc502881f1..3d3f8fce10a5 100644
--- a/net/netfilter/nft_hash.c
+++ b/net/netfilter/nft_hash.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2008-2009 Patrick McHardy <kaber@trash.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -21,11 +21,6 @@
 struct nft_hash {
 	struct hlist_head	*hash;
 	unsigned int		hsize;
-	enum nft_registers	sreg:8;
-	enum nft_registers	dreg:8;
-	u8			klen;
-	u8			dlen;
-	u16			flags;
 };
 
 struct nft_hash_elem {
@@ -42,213 +37,140 @@ static unsigned int nft_hash_data(const struct nft_data *data,
 {
 	unsigned int h;
 
-	// FIXME: can we reasonably guarantee the upper bits are fixed?
-	h = jhash2(data->data, len >> 2, nft_hash_rnd);
+	h = jhash(data->data, len, nft_hash_rnd);
 	return ((u64)h * hsize) >> 32;
 }
 
-static void nft_hash_eval(const struct nft_expr *expr,
-			  struct nft_data data[NFT_REG_MAX + 1],
-			  const struct nft_pktinfo *pkt)
+static bool nft_hash_lookup(const struct nft_set *set,
+			    const struct nft_data *key,
+			    struct nft_data *data)
 {
-	const struct nft_hash *priv = nft_expr_priv(expr);
-	const struct nft_hash_elem *elem;
-	const struct nft_data *key = &data[priv->sreg];
+	const struct nft_hash *priv = nft_set_priv(set);
+	const struct nft_hash_elem *he;
 	unsigned int h;
 
-	h = nft_hash_data(key, priv->hsize, priv->klen);
-	hlist_for_each_entry(elem, &priv->hash[h], hnode) {
-		if (nft_data_cmp(&elem->key, key, priv->klen))
+	h = nft_hash_data(key, priv->hsize, set->klen);
+	hlist_for_each_entry(he, &priv->hash[h], hnode) {
+		if (nft_data_cmp(&he->key, key, set->klen))
 			continue;
-		if (priv->flags & NFT_HASH_MAP)
-			nft_data_copy(&data[priv->dreg], elem->data);
-		return;
+		if (set->flags & NFT_SET_MAP)
+			nft_data_copy(data, he->data);
+		return true;
 	}
-	data[NFT_REG_VERDICT].verdict = NFT_BREAK;
+	return false;
 }
 
-static void nft_hash_elem_destroy(const struct nft_expr *expr,
-				  struct nft_hash_elem *elem)
+static void nft_hash_elem_destroy(const struct nft_set *set,
+				  struct nft_hash_elem *he)
 {
-	const struct nft_hash *priv = nft_expr_priv(expr);
-
-	nft_data_uninit(&elem->key, NFT_DATA_VALUE);
-	if (priv->flags & NFT_HASH_MAP)
-		nft_data_uninit(elem->data, nft_dreg_to_type(priv->dreg));
-	kfree(elem);
+	nft_data_uninit(&he->key, NFT_DATA_VALUE);
+	if (set->flags & NFT_SET_MAP)
+		nft_data_uninit(he->data, set->dtype);
+	kfree(he);
 }
 
-static const struct nla_policy nft_he_policy[NFTA_HE_MAX + 1] = {
-	[NFTA_HE_KEY]		= { .type = NLA_NESTED },
-	[NFTA_HE_DATA]		= { .type = NLA_NESTED },
-};
-
-static int nft_hash_elem_init(const struct nft_ctx *ctx,
-			      const struct nft_expr *expr,
-			      const struct nlattr *nla,
-			      struct nft_hash_elem **new)
+static int nft_hash_insert(const struct nft_set *set,
+			   const struct nft_set_elem *elem)
 {
-	struct nft_hash *priv = nft_expr_priv(expr);
-	struct nlattr *tb[NFTA_HE_MAX + 1];
-	struct nft_hash_elem *elem;
-	struct nft_data_desc d1, d2;
-	unsigned int size;
-	int err;
+	struct nft_hash *priv = nft_set_priv(set);
+	struct nft_hash_elem *he;
+	unsigned int size, h;
 
-	err = nla_parse_nested(tb, NFTA_HE_MAX, nla, nft_he_policy);
-	if (err < 0)
-		return err;
-
-	if (tb[NFTA_HE_KEY] == NULL)
+	if (elem->flags != 0)
 		return -EINVAL;
-	size = sizeof(*elem);
-
-	if (priv->flags & NFT_HASH_MAP) {
-		if (tb[NFTA_HE_DATA] == NULL)
-			return -EINVAL;
-		size += sizeof(elem->data[0]);
-	} else {
-		if (tb[NFTA_HE_DATA] != NULL)
-			return -EINVAL;
-	}
 
-	elem = kzalloc(size, GFP_KERNEL);
-	if (elem == NULL)
+	size = sizeof(*he);
+	if (set->flags & NFT_SET_MAP)
+		size += sizeof(he->data[0]);
+
+	he = kzalloc(size, GFP_KERNEL);
+	if (he == NULL)
 		return -ENOMEM;
 
-	err = nft_data_init(ctx, &elem->key, &d1, tb[NFTA_HE_KEY]);
-	if (err < 0)
-		goto err1;
-	err = -EINVAL;
-	if (d1.type != NFT_DATA_VALUE || d1.len != priv->klen)
-		goto err2;
-
-	if (tb[NFTA_HE_DATA] != NULL) {
-		err = nft_data_init(ctx, elem->data, &d2, tb[NFTA_HE_DATA]);
-		if (err < 0)
-			goto err2;
-		err = nft_validate_data_load(ctx, priv->dreg, elem->data, d2.type);
-		if (err < 0)
-			goto err3;
-	}
+	nft_data_copy(&he->key, &elem->key);
+	if (set->flags & NFT_SET_MAP)
+		nft_data_copy(he->data, &elem->data);
 
-	*new = elem;
+	h = nft_hash_data(&he->key, priv->hsize, set->klen);
+	hlist_add_head_rcu(&he->hnode, &priv->hash[h]);
 	return 0;
-
-err3:
-	nft_data_uninit(elem->data, d2.type);
-err2:
-	nft_data_uninit(&elem->key, d1.type);
-err1:
-	kfree(elem);
-	return err;
 }
 
-static int nft_hash_elem_dump(struct sk_buff *skb, const struct nft_expr *expr,
-			      const struct nft_hash_elem *elem)
-
+static void nft_hash_remove(const struct nft_set *set,
+			    const struct nft_set_elem *elem)
 {
-	const struct nft_hash *priv = nft_expr_priv(expr);
-	struct nlattr *nest;
+	struct nft_hash_elem *he = elem->cookie;
 
-	nest = nla_nest_start(skb, NFTA_LIST_ELEM);
-	if (nest == NULL)
-		goto nla_put_failure;
-
-	if (nft_data_dump(skb, NFTA_HE_KEY, &elem->key,
-			  NFT_DATA_VALUE, priv->klen) < 0)
-		goto nla_put_failure;
+	hlist_del_rcu(&he->hnode);
+	kfree(he);
+}
 
-	if (priv->flags & NFT_HASH_MAP) {
-		if (nft_data_dump(skb, NFTA_HE_DATA, elem->data,
-				  NFT_DATA_VALUE, priv->dlen) < 0)
-			goto nla_put_failure;
-	}
+static int nft_hash_get(const struct nft_set *set, struct nft_set_elem *elem)
+{
+	const struct nft_hash *priv = nft_set_priv(set);
+	struct nft_hash_elem *he;
+	unsigned int h;
 
-	nla_nest_end(skb, nest);
-	return 0;
+	h = nft_hash_data(&elem->key, priv->hsize, set->klen);
+	hlist_for_each_entry(he, &priv->hash[h], hnode) {
+		if (nft_data_cmp(&he->key, &elem->key, set->klen))
+			continue;
 
-nla_put_failure:
-	return -1;
+		elem->cookie = he;
+		elem->flags  = 0;
+		if (set->flags & NFT_SET_MAP)
+			nft_data_copy(&elem->data, he->data);
+		return 0;
+	}
+	return -ENOENT;
 }
 
-static void nft_hash_destroy(const struct nft_ctx *ctx,
-			     const struct nft_expr *expr)
+static void nft_hash_walk(const struct nft_ctx *ctx, const struct nft_set *set,
+			  struct nft_set_iter *iter)
 {
-	const struct nft_hash *priv = nft_expr_priv(expr);
-	const struct hlist_node *next;
-	struct nft_hash_elem *elem;
+	const struct nft_hash *priv = nft_set_priv(set);
+	const struct nft_hash_elem *he;
+	struct nft_set_elem elem;
 	unsigned int i;
 
 	for (i = 0; i < priv->hsize; i++) {
-		hlist_for_each_entry_safe(elem, next, &priv->hash[i], hnode) {
-			hlist_del(&elem->hnode);
-			nft_hash_elem_destroy(expr, elem);
+		hlist_for_each_entry(he, &priv->hash[i], hnode) {
+			if (iter->count < iter->skip)
+				goto cont;
+
+			memcpy(&elem.key, &he->key, sizeof(elem.key));
+			if (set->flags & NFT_SET_MAP)
+				memcpy(&elem.data, he->data, sizeof(elem.data));
+			elem.flags = 0;
+
+			iter->err = iter->fn(ctx, set, iter, &elem);
+			if (iter->err < 0)
+				return;
+cont:
+			iter->count++;
 		}
 	}
-	kfree(priv->hash);
 }
 
-static const struct nla_policy nft_hash_policy[NFTA_HASH_MAX + 1] = {
-	[NFTA_HASH_FLAGS]	= { .type = NLA_U32 },
-	[NFTA_HASH_SREG]	= { .type = NLA_U32 },
-	[NFTA_HASH_DREG]	= { .type = NLA_U32 },
-	[NFTA_HASH_KLEN]	= { .type = NLA_U32 },
-	[NFTA_HASH_ELEMENTS]	= { .type = NLA_NESTED },
-};
+static unsigned int nft_hash_privsize(const struct nlattr * const nla[])
+{
+	return sizeof(struct nft_hash);
+}
 
-static int nft_hash_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
+static int nft_hash_init(const struct nft_set *set,
 			 const struct nlattr * const tb[])
 {
-	struct nft_hash *priv = nft_expr_priv(expr);
-	struct nft_hash_elem *elem, *uninitialized_var(new);
-	const struct nlattr *nla;
+	struct nft_hash *priv = nft_set_priv(set);
 	unsigned int cnt, i;
-	unsigned int h;
-	int err, rem;
 
 	if (unlikely(!nft_hash_rnd_initted)) {
 		get_random_bytes(&nft_hash_rnd, 4);
 		nft_hash_rnd_initted = true;
 	}
 
-	if (tb[NFTA_HASH_SREG] == NULL ||
-	    tb[NFTA_HASH_KLEN] == NULL ||
-	    tb[NFTA_HASH_ELEMENTS] == NULL)
-		return -EINVAL;
-
-	if (tb[NFTA_HASH_FLAGS] != NULL) {
-		priv->flags = ntohl(nla_get_be32(tb[NFTA_HASH_FLAGS]));
-		if (priv->flags & ~NFT_HASH_MAP)
-			return -EINVAL;
-	}
-
-	priv->sreg = ntohl(nla_get_be32(tb[NFTA_HASH_SREG]));
-	err = nft_validate_input_register(priv->sreg);
-	if (err < 0)
-		return err;
-
-	if (tb[NFTA_HASH_DREG] != NULL) {
-		if (!(priv->flags & NFT_HASH_MAP))
-			return -EINVAL;
-		priv->dreg = ntohl(nla_get_be32(tb[NFTA_HASH_DREG]));
-		err = nft_validate_output_register(priv->dreg);
-		if (err < 0)
-			return err;
-	}
-
-	priv->klen = ntohl(nla_get_be32(tb[NFTA_HASH_KLEN]));
-	if (priv->klen == 0)
-		return -EINVAL;
-
-	cnt = 0;
-	nla_for_each_nested(nla, tb[NFTA_HASH_ELEMENTS], rem) {
-		if (nla_type(nla) != NFTA_LIST_ELEM)
-			return -EINVAL;
-		cnt++;
-	}
-
 	/* Aim for a load factor of 0.75 */
+	// FIXME: temporarily broken until we have set descriptions
+	cnt = 100;
 	cnt = cnt * 4 / 3;
 
 	priv->hash = kcalloc(cnt, sizeof(struct hlist_head), GFP_KERNEL);
@@ -259,85 +181,46 @@ static int nft_hash_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
 	for (i = 0; i < cnt; i++)
 		INIT_HLIST_HEAD(&priv->hash[i]);
 
-	err = -ENOMEM;
-	nla_for_each_nested(nla, tb[NFTA_HASH_ELEMENTS], rem) {
-		err = nft_hash_elem_init(ctx, expr, nla, &new);
-		if (err < 0)
-			goto err1;
-
-		h = nft_hash_data(&new->key, priv->hsize, priv->klen);
-		hlist_for_each_entry(elem, &priv->hash[h], hnode) {
-			if (nft_data_cmp(&elem->key, &new->key, priv->klen))
-				continue;
-			nft_hash_elem_destroy(expr, new);
-			err = -EEXIST;
-			goto err1;
-		}
-		hlist_add_head(&new->hnode, &priv->hash[h]);
-	}
 	return 0;
-
-err1:
-	nft_hash_destroy(ctx, expr);
-	return err;
 }
 
-static int nft_hash_dump(struct sk_buff *skb, const struct nft_expr *expr)
+static void nft_hash_destroy(const struct nft_set *set)
 {
-	const struct nft_hash *priv = nft_expr_priv(expr);
-	const struct nft_hash_elem *elem;
-	struct nlattr *list;
+	const struct nft_hash *priv = nft_set_priv(set);
+	const struct hlist_node *next;
+	struct nft_hash_elem *elem;
 	unsigned int i;
 
-	if (priv->flags)
-		if (nla_put_be32(skb, NFTA_HASH_FLAGS, htonl(priv->flags)))
-			goto nla_put_failure;
-	if (nla_put_be32(skb, NFTA_HASH_SREG, htonl(priv->sreg)))
-		goto nla_put_failure;
-	if (priv->flags & NFT_HASH_MAP)
-		if (nla_put_be32(skb, NFTA_HASH_DREG, htonl(priv->dreg)))
-			goto nla_put_failure;
-	if (nla_put_be32(skb, NFTA_HASH_KLEN, htonl(priv->klen)))
-		goto nla_put_failure;
-
-	list = nla_nest_start(skb, NFTA_HASH_ELEMENTS);
-	if (list == NULL)
-		goto nla_put_failure;
-
 	for (i = 0; i < priv->hsize; i++) {
-		hlist_for_each_entry(elem, &priv->hash[i], hnode) {
-			if (nft_hash_elem_dump(skb, expr, elem) < 0)
-				goto nla_put_failure;
+		hlist_for_each_entry_safe(elem, next, &priv->hash[i], hnode) {
+			hlist_del(&elem->hnode);
+			nft_hash_elem_destroy(set, elem);
 		}
 	}
-
-	nla_nest_end(skb, list);
-	return 0;
-
-nla_put_failure:
-	return -1;
+	kfree(priv->hash);
 }
 
-static struct nft_expr_ops nft_hash_ops __read_mostly = {
-	.name		= "hash",
-	.size		= NFT_EXPR_SIZE(sizeof(struct nft_hash)),
-	.owner		= THIS_MODULE,
-	.eval		= nft_hash_eval,
+static struct nft_set_ops nft_hash_ops __read_mostly = {
+	.privsize       = nft_hash_privsize,
 	.init		= nft_hash_init,
 	.destroy	= nft_hash_destroy,
-	.dump		= nft_hash_dump,
-	.policy		= nft_hash_policy,
-	.maxattr	= NFTA_HASH_MAX,
+	.get		= nft_hash_get,
+	.insert		= nft_hash_insert,
+	.remove		= nft_hash_remove,
+	.lookup		= nft_hash_lookup,
+	.walk		= nft_hash_walk,
+	.features	= NFT_SET_MAP,
+	.owner		= THIS_MODULE,
 };
 
 static int __init nft_hash_module_init(void)
 {
-	return nft_register_expr(&nft_hash_ops);
+	return nft_register_set(&nft_hash_ops);
 }
 
 static void __exit nft_hash_module_exit(void)
 {
-	nft_unregister_expr(&nft_hash_ops);
+	nft_unregister_set(&nft_hash_ops);
 }
 
 module_init(nft_hash_module_init);
@@ -345,4 +228,4 @@ module_exit(nft_hash_module_exit);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
-MODULE_ALIAS_NFT_EXPR("hash");
+MODULE_ALIAS_NFT_SET();
diff --git a/net/netfilter/nft_immediate.c b/net/netfilter/nft_immediate.c
index 3bf42c3cc49a..78334bf37007 100644
--- a/net/netfilter/nft_immediate.c
+++ b/net/netfilter/nft_immediate.c
@@ -90,6 +90,16 @@ nla_put_failure:
 	return -1;
 }
 
+static const struct nft_data *nft_immediate_get_verdict(const struct nft_expr *expr)
+{
+	const struct nft_immediate_expr *priv = nft_expr_priv(expr);
+
+	if (priv->dreg == NFT_REG_VERDICT)
+		return &priv->data;
+	else
+		return NULL;
+}
+
 static struct nft_expr_ops nft_imm_ops __read_mostly = {
 	.name		= "immediate",
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_immediate_expr)),
@@ -98,6 +108,7 @@ static struct nft_expr_ops nft_imm_ops __read_mostly = {
 	.init		= nft_immediate_init,
 	.destroy	= nft_immediate_destroy,
 	.dump		= nft_immediate_dump,
+	.get_verdict	= nft_immediate_get_verdict,
 	.policy		= nft_immediate_policy,
 	.maxattr	= NFTA_IMMEDIATE_MAX,
 };
diff --git a/net/netfilter/nft_lookup.c b/net/netfilter/nft_lookup.c
new file mode 100644
index 000000000000..4962d2173678
--- /dev/null
+++ b/net/netfilter/nft_lookup.c
@@ -0,0 +1,135 @@
+/*
+ * Copyright (c) 2009 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/rbtree.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables.h>
+
+struct nft_lookup {
+	struct nft_set			*set;
+	enum nft_registers		sreg:8;
+	enum nft_registers		dreg:8;
+	struct nft_set_binding		binding;
+};
+
+static void nft_lookup_eval(const struct nft_expr *expr,
+			    struct nft_data data[NFT_REG_MAX + 1],
+			    const struct nft_pktinfo *pkt)
+{
+	const struct nft_lookup *priv = nft_expr_priv(expr);
+	const struct nft_set *set = priv->set;
+
+	if (set->ops->lookup(set, &data[priv->sreg], &data[priv->dreg]))
+		return;
+	data[NFT_REG_VERDICT].verdict = NFT_BREAK;
+}
+
+static const struct nla_policy nft_lookup_policy[NFTA_LOOKUP_MAX + 1] = {
+	[NFTA_LOOKUP_SET]	= { .type = NLA_STRING },
+	[NFTA_LOOKUP_SREG]	= { .type = NLA_U32 },
+	[NFTA_LOOKUP_DREG]	= { .type = NLA_U32 },
+};
+
+static int nft_lookup_init(const struct nft_ctx *ctx,
+			   const struct nft_expr *expr,
+			   const struct nlattr * const tb[])
+{
+	struct nft_lookup *priv = nft_expr_priv(expr);
+	struct nft_set *set;
+	int err;
+
+	if (tb[NFTA_LOOKUP_SET] == NULL ||
+	    tb[NFTA_LOOKUP_SREG] == NULL)
+		return -EINVAL;
+
+	set = nf_tables_set_lookup(ctx->table, tb[NFTA_LOOKUP_SET]);
+	if (IS_ERR(set))
+		return PTR_ERR(set);
+
+	priv->sreg = ntohl(nla_get_be32(tb[NFTA_LOOKUP_SREG]));
+	err = nft_validate_input_register(priv->sreg);
+	if (err < 0)
+		return err;
+
+	if (tb[NFTA_LOOKUP_DREG] != NULL) {
+		if (!(set->flags & NFT_SET_MAP))
+			return -EINVAL;
+
+		priv->dreg = ntohl(nla_get_be32(tb[NFTA_LOOKUP_DREG]));
+		err = nft_validate_output_register(priv->dreg);
+		if (err < 0)
+			return err;
+
+		if (priv->dreg == NFT_REG_VERDICT) {
+			if (set->dtype != NFT_DATA_VERDICT)
+				return -EINVAL;
+		} else if (set->dtype == NFT_DATA_VERDICT)
+			return -EINVAL;
+	} else if (set->flags & NFT_SET_MAP)
+		return -EINVAL;
+
+	err = nf_tables_bind_set(ctx, set, &priv->binding);
+	if (err < 0)
+		return err;
+
+	priv->set = set;
+	return 0;
+}
+
+static void nft_lookup_destroy(const struct nft_expr *expr)
+{
+	struct nft_lookup *priv = nft_expr_priv(expr);
+
+	nf_tables_unbind_set(NULL, priv->set, &priv->binding);
+}
+
+static int nft_lookup_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	const struct nft_lookup *priv = nft_expr_priv(expr);
+
+	if (nla_put_string(skb, NFTA_LOOKUP_SET, priv->set->name))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_LOOKUP_SREG, htonl(priv->sreg)))
+		goto nla_put_failure;
+	if (priv->set->flags & NFT_SET_MAP)
+		if (nla_put_be32(skb, NFTA_LOOKUP_DREG, htonl(priv->dreg)))
+			goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static struct nft_expr_ops nft_lookup_ops __read_mostly = {
+	.name		= "lookup",
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_lookup)),
+	.owner		= THIS_MODULE,
+	.eval		= nft_lookup_eval,
+	.init		= nft_lookup_init,
+	.destroy	= nft_lookup_destroy,
+	.dump		= nft_lookup_dump,
+	.policy		= nft_lookup_policy,
+	.maxattr	= NFTA_LOOKUP_MAX,
+};
+
+int __init nft_lookup_module_init(void)
+{
+	return nft_register_expr(&nft_lookup_ops);
+}
+
+void nft_lookup_module_exit(void)
+{
+	nft_unregister_expr(&nft_lookup_ops);
+}
diff --git a/net/netfilter/nft_rbtree.c b/net/netfilter/nft_rbtree.c
new file mode 100644
index 000000000000..ca0c1b231bfe
--- /dev/null
+++ b/net/netfilter/nft_rbtree.c
@@ -0,0 +1,247 @@
+/*
+ * Copyright (c) 2008-2009 Patrick McHardy <kaber@trash.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/list.h>
+#include <linux/rbtree.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables.h>
+
+struct nft_rbtree {
+	struct rb_root		root;
+};
+
+struct nft_rbtree_elem {
+	struct rb_node		node;
+	u16			flags;
+	struct nft_data		key;
+	struct nft_data		data[];
+};
+
+static bool nft_rbtree_lookup(const struct nft_set *set,
+			      const struct nft_data *key,
+			      struct nft_data *data)
+{
+	const struct nft_rbtree *priv = nft_set_priv(set);
+	const struct nft_rbtree_elem *rbe, *interval = NULL;
+	const struct rb_node *parent = priv->root.rb_node;
+	int d;
+
+	while (parent != NULL) {
+		rbe = rb_entry(parent, struct nft_rbtree_elem, node);
+
+		d = nft_data_cmp(&rbe->key, key, set->klen);
+		if (d < 0) {
+			parent = parent->rb_left;
+			interval = rbe;
+		} else if (d > 0)
+			parent = parent->rb_right;
+		else {
+found:
+			if (rbe->flags & NFT_SET_ELEM_INTERVAL_END)
+				goto out;
+			if (set->flags & NFT_SET_MAP)
+				nft_data_copy(data, rbe->data);
+			return true;
+		}
+	}
+
+	if (set->flags & NFT_SET_INTERVAL && interval != NULL) {
+		rbe = interval;
+		goto found;
+	}
+out:
+	return false;
+}
+
+static void nft_rbtree_elem_destroy(const struct nft_set *set,
+				    struct nft_rbtree_elem *rbe)
+{
+	nft_data_uninit(&rbe->key, NFT_DATA_VALUE);
+	if (set->flags & NFT_SET_MAP)
+		nft_data_uninit(rbe->data, set->dtype);
+	kfree(rbe);
+}
+
+static int __nft_rbtree_insert(const struct nft_set *set,
+			       struct nft_rbtree_elem *new)
+{
+	struct nft_rbtree *priv = nft_set_priv(set);
+	struct nft_rbtree_elem *rbe;
+	struct rb_node *parent, **p;
+	int d;
+
+	parent = NULL;
+	p = &priv->root.rb_node;
+	while (*p != NULL) {
+		parent = *p;
+		rbe = rb_entry(parent, struct nft_rbtree_elem, node);
+		d = nft_data_cmp(&rbe->key, &new->key, set->klen);
+		if (d < 0)
+			p = &parent->rb_left;
+		else if (d > 0)
+			p = &parent->rb_right;
+		else
+			return -EEXIST;
+	}
+	rb_link_node(&new->node, parent, p);
+	rb_insert_color(&new->node, &priv->root);
+	return 0;
+}
+
+static int nft_rbtree_insert(const struct nft_set *set,
+			     const struct nft_set_elem *elem)
+{
+	struct nft_rbtree_elem *rbe;
+	unsigned int size;
+	int err;
+
+	size = sizeof(*rbe);
+	if (set->flags & NFT_SET_MAP)
+		size += sizeof(rbe->data[0]);
+
+	rbe = kzalloc(size, GFP_KERNEL);
+	if (rbe == NULL)
+		return -ENOMEM;
+
+	rbe->flags = elem->flags;
+	nft_data_copy(&rbe->key, &elem->key);
+	if (set->flags & NFT_SET_MAP)
+		nft_data_copy(rbe->data, &elem->data);
+
+	err = __nft_rbtree_insert(set, rbe);
+	if (err < 0)
+		kfree(rbe);
+	return err;
+}
+
+static void nft_rbtree_remove(const struct nft_set *set,
+			      const struct nft_set_elem *elem)
+{
+	struct nft_rbtree *priv = nft_set_priv(set);
+	struct nft_rbtree_elem *rbe = elem->cookie;
+
+	rb_erase(&rbe->node, &priv->root);
+	kfree(rbe);
+}
+
+static int nft_rbtree_get(const struct nft_set *set, struct nft_set_elem *elem)
+{
+	const struct nft_rbtree *priv = nft_set_priv(set);
+	const struct rb_node *parent = priv->root.rb_node;
+	struct nft_rbtree_elem *rbe;
+	int d;
+
+	while (parent != NULL) {
+		rbe = rb_entry(parent, struct nft_rbtree_elem, node);
+
+		d = nft_data_cmp(&rbe->key, &elem->key, set->klen);
+		if (d < 0)
+			parent = parent->rb_left;
+		else if (d > 0)
+			parent = parent->rb_right;
+		else {
+			elem->cookie = rbe;
+			if (set->flags & NFT_SET_MAP)
+				nft_data_copy(&elem->data, rbe->data);
+			elem->flags = rbe->flags;
+			return 0;
+		}
+	}
+	return -ENOENT;
+}
+
+static void nft_rbtree_walk(const struct nft_ctx *ctx,
+			    const struct nft_set *set,
+			    struct nft_set_iter *iter)
+{
+	const struct nft_rbtree *priv = nft_set_priv(set);
+	const struct nft_rbtree_elem *rbe;
+	struct nft_set_elem elem;
+	struct rb_node *node;
+
+	for (node = rb_first(&priv->root); node != NULL; node = rb_next(node)) {
+		if (iter->count < iter->skip)
+			goto cont;
+
+		rbe = rb_entry(node, struct nft_rbtree_elem, node);
+		nft_data_copy(&elem.key, &rbe->key);
+		if (set->flags & NFT_SET_MAP)
+			nft_data_copy(&elem.data, rbe->data);
+		elem.flags = rbe->flags;
+
+		iter->err = iter->fn(ctx, set, iter, &elem);
+		if (iter->err < 0)
+			return;
+cont:
+		iter->count++;
+	}
+}
+
+static unsigned int nft_rbtree_privsize(const struct nlattr * const nla[])
+{
+	return sizeof(struct nft_rbtree);
+}
+
+static int nft_rbtree_init(const struct nft_set *set,
+			   const struct nlattr * const nla[])
+{
+	struct nft_rbtree *priv = nft_set_priv(set);
+
+	priv->root = RB_ROOT;
+	return 0;
+}
+
+static void nft_rbtree_destroy(const struct nft_set *set)
+{
+	struct nft_rbtree *priv = nft_set_priv(set);
+	struct nft_rbtree_elem *rbe;
+	struct rb_node *node;
+
+	while ((node = priv->root.rb_node) != NULL) {
+		rb_erase(node, &priv->root);
+		rbe = rb_entry(node, struct nft_rbtree_elem, node);
+		nft_rbtree_elem_destroy(set, rbe);
+	}
+}
+
+static struct nft_set_ops nft_rbtree_ops __read_mostly = {
+	.privsize	= nft_rbtree_privsize,
+	.init		= nft_rbtree_init,
+	.destroy	= nft_rbtree_destroy,
+	.insert		= nft_rbtree_insert,
+	.remove		= nft_rbtree_remove,
+	.get		= nft_rbtree_get,
+	.lookup		= nft_rbtree_lookup,
+	.walk		= nft_rbtree_walk,
+	.features	= NFT_SET_INTERVAL | NFT_SET_MAP,
+	.owner		= THIS_MODULE,
+};
+
+static int __init nft_rbtree_module_init(void)
+{
+	return nft_register_set(&nft_rbtree_ops);
+}
+
+static void __exit nft_rbtree_module_exit(void)
+{
+	nft_unregister_set(&nft_rbtree_ops);
+}
+
+module_init(nft_rbtree_module_init);
+module_exit(nft_rbtree_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_SET();
diff --git a/net/netfilter/nft_set.c b/net/netfilter/nft_set.c
deleted file mode 100644
index 7b7c8354c327..000000000000
--- a/net/netfilter/nft_set.c
+++ /dev/null
@@ -1,381 +0,0 @@
-/*
- * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Development of this code funded by Astaro AG (http://www.astaro.com/)
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/rbtree.h>
-#include <linux/netlink.h>
-#include <linux/netfilter.h>
-#include <linux/netfilter/nf_tables.h>
-#include <net/netfilter/nf_tables.h>
-
-struct nft_set {
-	struct rb_root		root;
-	enum nft_registers	sreg:8;
-	enum nft_registers	dreg:8;
-	u8			klen;
-	u8			dlen;
-	u16			flags;
-};
-
-struct nft_set_elem {
-	struct rb_node		node;
-	enum nft_set_elem_flags	flags;
-	struct nft_data		key;
-	struct nft_data		data[];
-};
-
-static void nft_set_eval(const struct nft_expr *expr,
-			 struct nft_data data[NFT_REG_MAX + 1],
-			 const struct nft_pktinfo *pkt)
-{
-	const struct nft_set *priv = nft_expr_priv(expr);
-	const struct rb_node *parent = priv->root.rb_node;
-	const struct nft_set_elem *elem, *interval = NULL;
-	const struct nft_data *key = &data[priv->sreg];
-	int d;
-
-	while (parent != NULL) {
-		elem = rb_entry(parent, struct nft_set_elem, node);
-
-		d = nft_data_cmp(&elem->key, key, priv->klen);
-		if (d < 0) {
-			parent = parent->rb_left;
-			interval = elem;
-		} else if (d > 0)
-			parent = parent->rb_right;
-		else {
-found:
-			if (elem->flags & NFT_SE_INTERVAL_END)
-				goto out;
-			if (priv->flags & NFT_SET_MAP)
-				nft_data_copy(&data[priv->dreg], elem->data);
-			return;
-		}
-	}
-
-	if (priv->flags & NFT_SET_INTERVAL && interval != NULL) {
-		elem = interval;
-		goto found;
-	}
-out:
-	data[NFT_REG_VERDICT].verdict = NFT_BREAK;
-}
-
-static void nft_set_elem_destroy(const struct nft_expr *expr,
-				 struct nft_set_elem *elem)
-{
-	const struct nft_set *priv = nft_expr_priv(expr);
-
-	nft_data_uninit(&elem->key, NFT_DATA_VALUE);
-	if (priv->flags & NFT_SET_MAP)
-		nft_data_uninit(elem->data, nft_dreg_to_type(priv->dreg));
-	kfree(elem);
-}
-
-static const struct nla_policy nft_se_policy[NFTA_SE_MAX + 1] = {
-	[NFTA_SE_KEY]		= { .type = NLA_NESTED },
-	[NFTA_SE_DATA]		= { .type = NLA_NESTED },
-	[NFTA_SE_FLAGS]		= { .type = NLA_U32 },
-};
-
-static int nft_set_elem_init(const struct nft_ctx *ctx,
-			     const struct nft_expr *expr,
-			     const struct nlattr *nla,
-			     struct nft_set_elem **new)
-{
-	struct nft_set *priv = nft_expr_priv(expr);
-	struct nlattr *tb[NFTA_SE_MAX + 1];
-	struct nft_set_elem *elem;
-	struct nft_data_desc d1, d2;
-	enum nft_set_elem_flags flags = 0;
-	unsigned int size;
-	int err;
-
-	err = nla_parse_nested(tb, NFTA_SE_MAX, nla, nft_se_policy);
-	if (err < 0)
-		return err;
-
-	if (tb[NFTA_SE_KEY] == NULL)
-		return -EINVAL;
-
-	if (tb[NFTA_SE_FLAGS] != NULL) {
-		flags = ntohl(nla_get_be32(tb[NFTA_SE_FLAGS]));
-		if (flags & ~NFT_SE_INTERVAL_END)
-			return -EINVAL;
-	}
-
-	size = sizeof(*elem);
-	if (priv->flags & NFT_SET_MAP) {
-		if (tb[NFTA_SE_DATA] == NULL && !(flags & NFT_SE_INTERVAL_END))
-			return -EINVAL;
-		size += sizeof(elem->data[0]);
-	} else {
-		if (tb[NFTA_SE_DATA] != NULL)
-			return -EINVAL;
-	}
-
-	elem = kzalloc(size, GFP_KERNEL);
-	if (elem == NULL)
-		return -ENOMEM;
-	elem->flags = flags;
-
-	err = nft_data_init(ctx, &elem->key, &d1, tb[NFTA_SE_KEY]);
-	if (err < 0)
-		goto err1;
-	err = -EINVAL;
-	if (d1.type != NFT_DATA_VALUE || d1.len != priv->klen)
-		goto err2;
-
-	if (tb[NFTA_SE_DATA] != NULL) {
-		err = nft_data_init(ctx, elem->data, &d2, tb[NFTA_SE_DATA]);
-		if (err < 0)
-			goto err2;
-		err = -EINVAL;
-		if (priv->dreg != NFT_REG_VERDICT && d2.len != priv->dlen)
-			goto err2;
-		err = nft_validate_data_load(ctx, priv->dreg, elem->data, d2.type);
-		if (err < 0)
-			goto err3;
-	}
-
-	*new = elem;
-	return 0;
-
-err3:
-	nft_data_uninit(elem->data, d2.type);
-err2:
-	nft_data_uninit(&elem->key, d1.type);
-err1:
-	kfree(elem);
-	return err;
-}
-
-static int nft_set_elem_dump(struct sk_buff *skb, const struct nft_expr *expr,
-			     const struct nft_set_elem *elem)
-
-{
-	const struct nft_set *priv = nft_expr_priv(expr);
-	struct nlattr *nest;
-
-	nest = nla_nest_start(skb, NFTA_LIST_ELEM);
-	if (nest == NULL)
-		goto nla_put_failure;
-
-	if (nft_data_dump(skb, NFTA_SE_KEY, &elem->key,
-			  NFT_DATA_VALUE, priv->klen) < 0)
-		goto nla_put_failure;
-
-	if (priv->flags & NFT_SET_MAP && !(elem->flags & NFT_SE_INTERVAL_END)) {
-		if (nft_data_dump(skb, NFTA_SE_DATA, elem->data,
-				  nft_dreg_to_type(priv->dreg), priv->dlen) < 0)
-			goto nla_put_failure;
-	}
-
-	if (elem->flags){
-		if (nla_put_be32(skb, NFTA_SE_FLAGS, htonl(elem->flags)))
-			goto nla_put_failure;
-	}
-
-	nla_nest_end(skb, nest);
-	return 0;
-
-nla_put_failure:
-	return -1;
-}
-
-static void nft_set_destroy(const struct nft_expr *expr)
-{
-	struct nft_set *priv = nft_expr_priv(expr);
-	struct nft_set_elem *elem;
-	struct rb_node *node;
-
-	while ((node = priv->root.rb_node) != NULL) {
-		rb_erase(node, &priv->root);
-		elem = rb_entry(node, struct nft_set_elem, node);
-		nft_set_elem_destroy(expr, elem);
-	}
-}
-
-static const struct nla_policy nft_set_policy[NFTA_SET_MAX + 1] = {
-	[NFTA_SET_FLAGS]	= { .type = NLA_U32 },
-	[NFTA_SET_SREG]		= { .type = NLA_U32 },
-	[NFTA_SET_DREG]		= { .type = NLA_U32 },
-	[NFTA_SET_KLEN]		= { .type = NLA_U32 },
-	[NFTA_SET_DLEN]		= { .type = NLA_U32 },
-	[NFTA_SET_ELEMENTS]	= { .type = NLA_NESTED },
-};
-
-static int nft_set_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
-			const struct nlattr * const tb[])
-{
-	struct nft_set *priv = nft_expr_priv(expr);
-	struct nft_set_elem *elem, *uninitialized_var(new);
-	struct rb_node *parent, **p;
-	const struct nlattr *nla;
-	int err, rem, d;
-
-	if (tb[NFTA_SET_SREG] == NULL ||
-	    tb[NFTA_SET_KLEN] == NULL ||
-	    tb[NFTA_SET_ELEMENTS] == NULL)
-		return -EINVAL;
-
-	priv->root = RB_ROOT;
-
-	if (tb[NFTA_SET_FLAGS] != NULL) {
-		priv->flags = ntohl(nla_get_be32(tb[NFTA_SET_FLAGS]));
-		if (priv->flags & ~(NFT_SET_INTERVAL | NFT_SET_MAP))
-			return -EINVAL;
-	}
-
-	priv->sreg = ntohl(nla_get_be32(tb[NFTA_SET_SREG]));
-	err = nft_validate_input_register(priv->sreg);
-	if (err < 0)
-		return err;
-
-	if (tb[NFTA_SET_DREG] != NULL) {
-		if (!(priv->flags & NFT_SET_MAP))
-			return -EINVAL;
-		if (tb[NFTA_SET_DLEN] == NULL)
-			return -EINVAL;
-
-		priv->dreg = ntohl(nla_get_be32(tb[NFTA_SET_DREG]));
-		err = nft_validate_output_register(priv->dreg);
-		if (err < 0)
-			return err;
-
-		if (priv->dreg == NFT_REG_VERDICT)
-			priv->dlen = FIELD_SIZEOF(struct nft_data, data);
-		else {
-			priv->dlen = ntohl(nla_get_be32(tb[NFTA_SET_DLEN]));
-			if (priv->dlen == 0 ||
-			    priv->dlen > FIELD_SIZEOF(struct nft_data, data))
-				return -EINVAL;
-		}
-	} else {
-		if (priv->flags & NFT_SET_MAP)
-			return -EINVAL;
-		if (tb[NFTA_SET_DLEN] != NULL)
-			return -EINVAL;
-	}
-
-	priv->klen = ntohl(nla_get_be32(tb[NFTA_SET_KLEN]));
-	if (priv->klen == 0 ||
-	    priv->klen > FIELD_SIZEOF(struct nft_data, data))
-		return -EINVAL;
-
-	nla_for_each_nested(nla, tb[NFTA_SET_ELEMENTS], rem) {
-		err = -EINVAL;
-		if (nla_type(nla) != NFTA_LIST_ELEM)
-			goto err1;
-
-		err = nft_set_elem_init(ctx, expr, nla, &new);
-		if (err < 0)
-			goto err1;
-
-		parent = NULL;
-		p = &priv->root.rb_node;
-		while (*p != NULL) {
-			parent = *p;
-			elem = rb_entry(parent, struct nft_set_elem, node);
-			d = nft_data_cmp(&elem->key, &new->key, priv->klen);
-			if (d < 0)
-				p = &parent->rb_left;
-			else if (d > 0)
-				p = &parent->rb_right;
-			else {
-				err = -EEXIST;
-				goto err2;
-			}
-		}
-		rb_link_node(&new->node, parent, p);
-		rb_insert_color(&new->node, &priv->root);
-	}
-
-	return 0;
-
-err2:
-	nft_set_elem_destroy(expr, new);
-err1:
-	nft_set_destroy(expr);
-	return err;
-}
-
-static int nft_set_dump(struct sk_buff *skb, const struct nft_expr *expr)
-{
-	struct nft_set *priv = nft_expr_priv(expr);
-	const struct nft_set_elem *elem;
-	struct rb_node *node;
-	struct nlattr *list;
-
-	if (priv->flags) {
-		if (nla_put_be32(skb, NFTA_SET_FLAGS, htonl(priv->flags)))
-			goto nla_put_failure;
-	}
-
-	if (nla_put_be32(skb, NFTA_SET_SREG, htonl(priv->sreg)))
-		goto nla_put_failure;
-	if (nla_put_be32(skb, NFTA_SET_KLEN, htonl(priv->klen)))
-		goto nla_put_failure;
-
-	if (priv->flags & NFT_SET_MAP) {
-		if (nla_put_be32(skb, NFTA_SET_DREG, htonl(priv->dreg)))
-			goto nla_put_failure;
-		if (nla_put_be32(skb, NFTA_SET_DLEN, htonl(priv->dlen)))
-			goto nla_put_failure;
-	}
-
-	list = nla_nest_start(skb, NFTA_SET_ELEMENTS);
-	if (list == NULL)
-		goto nla_put_failure;
-
-	for (node = rb_first(&priv->root); node; node = rb_next(node)) {
-		elem = rb_entry(node, struct nft_set_elem, node);
-		if (nft_set_elem_dump(skb, expr, elem) < 0)
-			goto nla_put_failure;
-	}
-
-	nla_nest_end(skb, list);
-	return 0;
-
-nla_put_failure:
-	return -1;
-}
-
-static struct nft_expr_ops nft_set_ops __read_mostly = {
-	.name		= "set",
-	.size		= NFT_EXPR_SIZE(sizeof(struct nft_set)),
-	.owner		= THIS_MODULE,
-	.eval		= nft_set_eval,
-	.init		= nft_set_init,
-	.destroy	= nft_set_destroy,
-	.dump		= nft_set_dump,
-	.policy		= nft_set_policy,
-	.maxattr	= NFTA_SET_MAX,
-};
-
-static int __init nft_set_module_init(void)
-{
-	return nft_register_expr(&nft_set_ops);
-}
-
-static void __exit nft_set_module_exit(void)
-{
-	nft_unregister_expr(&nft_set_ops);
-}
-
-module_init(nft_set_module_init);
-module_exit(nft_set_module_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
-MODULE_ALIAS_NFT_EXPR("set");
-- 
cgit 


From ef1f7df9170dbd875ce198ba84e6ab80f6fc139e Mon Sep 17 00:00:00 2001
From: Patrick McHardy <kaber@trash.net>
Date: Thu, 10 Oct 2013 11:41:20 +0200
Subject: netfilter: nf_tables: expression ops overloading

Split the expression ops into two parts and support overloading of
the runtime expression ops based on the requested function through
a ->select_ops() callback.

This can be used to provide optimized implementations, for instance
for loading small aligned amounts of data from the packet or inlining
frequently used operations into the main evaluation loop.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/net/netfilter/nf_tables.h      |  42 +++++++++-----
 net/ipv4/netfilter/nf_table_nat_ipv4.c |  18 ++++--
 net/ipv4/netfilter/nft_reject_ipv4.c   |  18 ++++--
 net/netfilter/nf_tables_api.c          | 101 +++++++++++++++++++--------------
 net/netfilter/nft_bitwise.c            |  18 ++++--
 net/netfilter/nft_byteorder.c          |  18 ++++--
 net/netfilter/nft_cmp.c                |  18 ++++--
 net/netfilter/nft_counter.c            |  22 ++++---
 net/netfilter/nft_ct.c                 |  18 ++++--
 net/netfilter/nft_expr_template.c      |  20 ++++---
 net/netfilter/nft_exthdr.c             |  16 ++++--
 net/netfilter/nft_immediate.c          |  18 ++++--
 net/netfilter/nft_limit.c              |  18 ++++--
 net/netfilter/nft_log.c                |  18 ++++--
 net/netfilter/nft_lookup.c             |  16 ++++--
 net/netfilter/nft_meta.c               |  18 ++++--
 net/netfilter/nft_payload.c            |  18 ++++--
 17 files changed, 267 insertions(+), 148 deletions(-)

diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index 677dd79380ed..66d0359702c6 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -222,25 +222,45 @@ extern int nf_tables_bind_set(const struct nft_ctx *ctx, struct nft_set *set,
 extern void nf_tables_unbind_set(const struct nft_ctx *ctx, struct nft_set *set,
 				 struct nft_set_binding *binding);
 
+
 /**
- *	struct nft_expr_ops - nf_tables expression operations
+ *	struct nft_expr_type - nf_tables expression type
  *
- *	@eval: Expression evaluation function
- *	@init: initialization function
- *	@destroy: destruction function
- *	@dump: function to dump parameters
+ *	@select_ops: function to select nft_expr_ops
+ *	@ops: default ops, used when no select_ops functions is present
  *	@list: used internally
  *	@name: Identifier
  *	@owner: module reference
  *	@policy: netlink attribute policy
  *	@maxattr: highest netlink attribute number
+ */
+struct nft_expr_type {
+	const struct nft_expr_ops	*(*select_ops)(const struct nlattr * const tb[]);
+	const struct nft_expr_ops	*ops;
+	struct list_head		list;
+	const char			*name;
+	struct module			*owner;
+	const struct nla_policy		*policy;
+	unsigned int			maxattr;
+};
+
+/**
+ *	struct nft_expr_ops - nf_tables expression operations
+ *
+ *	@eval: Expression evaluation function
  *	@size: full expression size, including private data size
+ *	@init: initialization function
+ *	@destroy: destruction function
+ *	@dump: function to dump parameters
+ *	@type: expression type
  */
 struct nft_expr;
 struct nft_expr_ops {
 	void				(*eval)(const struct nft_expr *expr,
 						struct nft_data data[NFT_REG_MAX + 1],
 						const struct nft_pktinfo *pkt);
+	unsigned int			size;
+
 	int				(*init)(const struct nft_ctx *ctx,
 						const struct nft_expr *expr,
 						const struct nlattr * const tb[]);
@@ -248,14 +268,10 @@ struct nft_expr_ops {
 	int				(*dump)(struct sk_buff *skb,
 						const struct nft_expr *expr);
 	const struct nft_data *		(*get_verdict)(const struct nft_expr *expr);
-	struct list_head		list;
-	const char			*name;
-	struct module			*owner;
-	const struct nla_policy		*policy;
-	unsigned int			maxattr;
-	unsigned int			size;
+	const struct nft_expr_type	*type;
 };
 
+#define NFT_EXPR_MAXATTR		16
 #define NFT_EXPR_SIZE(size)		(sizeof(struct nft_expr) + \
 					 ALIGN(size, __alignof__(struct nft_expr)))
 
@@ -418,8 +434,8 @@ extern void nft_unregister_afinfo(struct nft_af_info *);
 extern int nft_register_table(struct nft_table *, int family);
 extern void nft_unregister_table(struct nft_table *, int family);
 
-extern int nft_register_expr(struct nft_expr_ops *);
-extern void nft_unregister_expr(struct nft_expr_ops *);
+extern int nft_register_expr(struct nft_expr_type *);
+extern void nft_unregister_expr(struct nft_expr_type *);
 
 #define MODULE_ALIAS_NFT_FAMILY(family)	\
 	MODULE_ALIAS("nft-afinfo-" __stringify(family))
diff --git a/net/ipv4/netfilter/nf_table_nat_ipv4.c b/net/ipv4/netfilter/nf_table_nat_ipv4.c
index 2a6f184c10bd..2ecce39077a3 100644
--- a/net/ipv4/netfilter/nf_table_nat_ipv4.c
+++ b/net/ipv4/netfilter/nf_table_nat_ipv4.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2008-2009 Patrick McHardy <kaber@trash.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -149,15 +149,21 @@ nla_put_failure:
 	return -1;
 }
 
-static struct nft_expr_ops nft_nat_ops __read_mostly = {
-	.name		= "nat",
+static struct nft_expr_type nft_nat_type;
+static const struct nft_expr_ops nft_nat_ops = {
+	.type		= &nft_nat_type,
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_nat)),
-	.owner		= THIS_MODULE,
 	.eval		= nft_nat_eval,
 	.init		= nft_nat_init,
 	.dump		= nft_nat_dump,
+};
+
+static struct nft_expr_type nft_nat_type __read_mostly = {
+	.name		= "nat",
+	.ops		= &nft_nat_ops,
 	.policy		= nft_nat_policy,
 	.maxattr	= NFTA_NAT_MAX,
+	.owner		= THIS_MODULE,
 };
 
 /*
@@ -382,7 +388,7 @@ static int __init nf_table_nat_init(void)
 	if (err < 0)
 		goto err1;
 
-	err = nft_register_expr(&nft_nat_ops);
+	err = nft_register_expr(&nft_nat_type);
 	if (err < 0)
 		goto err2;
 
@@ -396,7 +402,7 @@ err1:
 
 static void __exit nf_table_nat_exit(void)
 {
-	nft_unregister_expr(&nft_nat_ops);
+	nft_unregister_expr(&nft_nat_type);
 	nft_unregister_table(&nf_table_nat_ipv4, AF_INET);
 }
 
diff --git a/net/ipv4/netfilter/nft_reject_ipv4.c b/net/ipv4/netfilter/nft_reject_ipv4.c
index b4ee8d3bb1e4..fff5ba1a33b7 100644
--- a/net/ipv4/netfilter/nft_reject_ipv4.c
+++ b/net/ipv4/netfilter/nft_reject_ipv4.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2008-2009 Patrick McHardy <kaber@trash.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -88,25 +88,31 @@ nla_put_failure:
 	return -1;
 }
 
-static struct nft_expr_ops reject_ops __read_mostly = {
-	.name		= "reject",
+static struct nft_expr_type nft_reject_type;
+static const struct nft_expr_ops nft_reject_ops = {
+	.type		= &nft_reject_type,
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_reject)),
-	.owner		= THIS_MODULE,
 	.eval		= nft_reject_eval,
 	.init		= nft_reject_init,
 	.dump		= nft_reject_dump,
+};
+
+static struct nft_expr_type nft_reject_type __read_mostly = {
+	.name		= "reject",
+	.ops		= &nft_reject_ops,
 	.policy		= nft_reject_policy,
 	.maxattr	= NFTA_REJECT_MAX,
+	.owner		= THIS_MODULE,
 };
 
 static int __init nft_reject_module_init(void)
 {
-	return nft_register_expr(&reject_ops);
+	return nft_register_expr(&nft_reject_type);
 }
 
 static void __exit nft_reject_module_exit(void)
 {
-	nft_unregister_expr(&reject_ops);
+	nft_unregister_expr(&nft_reject_type);
 }
 
 module_init(nft_reject_module_init);
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 5092c817c222..6dac9a3c9c40 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -840,64 +840,64 @@ static void nft_ctx_init(struct nft_ctx *ctx,
  */
 
 /**
- *	nft_register_expr - register nf_tables expr operations
- *	@ops: expr operations
+ *	nft_register_expr - register nf_tables expr type
+ *	@ops: expr type
  *
- *	Registers the expr operations for use with nf_tables. Returns zero on
+ *	Registers the expr type for use with nf_tables. Returns zero on
  *	success or a negative errno code otherwise.
  */
-int nft_register_expr(struct nft_expr_ops *ops)
+int nft_register_expr(struct nft_expr_type *type)
 {
 	nfnl_lock(NFNL_SUBSYS_NFTABLES);
-	list_add_tail(&ops->list, &nf_tables_expressions);
+	list_add_tail(&type->list, &nf_tables_expressions);
 	nfnl_unlock(NFNL_SUBSYS_NFTABLES);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(nft_register_expr);
 
 /**
- *	nft_unregister_expr - unregister nf_tables expr operations
- *	@ops: expr operations
+ *	nft_unregister_expr - unregister nf_tables expr type
+ *	@ops: expr type
  *
- * 	Unregisters the expr operations for use with nf_tables.
+ * 	Unregisters the expr typefor use with nf_tables.
  */
-void nft_unregister_expr(struct nft_expr_ops *ops)
+void nft_unregister_expr(struct nft_expr_type *type)
 {
 	nfnl_lock(NFNL_SUBSYS_NFTABLES);
-	list_del(&ops->list);
+	list_del(&type->list);
 	nfnl_unlock(NFNL_SUBSYS_NFTABLES);
 }
 EXPORT_SYMBOL_GPL(nft_unregister_expr);
 
-static const struct nft_expr_ops *__nft_expr_ops_get(struct nlattr *nla)
+static const struct nft_expr_type *__nft_expr_type_get(struct nlattr *nla)
 {
-	const struct nft_expr_ops *ops;
+	const struct nft_expr_type *type;
 
-	list_for_each_entry(ops, &nf_tables_expressions, list) {
-		if (!nla_strcmp(nla, ops->name))
-			return ops;
+	list_for_each_entry(type, &nf_tables_expressions, list) {
+		if (!nla_strcmp(nla, type->name))
+			return type;
 	}
 	return NULL;
 }
 
-static const struct nft_expr_ops *nft_expr_ops_get(struct nlattr *nla)
+static const struct nft_expr_type *nft_expr_type_get(struct nlattr *nla)
 {
-	const struct nft_expr_ops *ops;
+	const struct nft_expr_type *type;
 
 	if (nla == NULL)
 		return ERR_PTR(-EINVAL);
 
-	ops = __nft_expr_ops_get(nla);
-	if (ops != NULL && try_module_get(ops->owner))
-		return ops;
+	type = __nft_expr_type_get(nla);
+	if (type != NULL && try_module_get(type->owner))
+		return type;
 
 #ifdef CONFIG_MODULES
-	if (ops == NULL) {
+	if (type == NULL) {
 		nfnl_unlock(NFNL_SUBSYS_NFTABLES);
 		request_module("nft-expr-%.*s",
 			       nla_len(nla), (char *)nla_data(nla));
 		nfnl_lock(NFNL_SUBSYS_NFTABLES);
-		if (__nft_expr_ops_get(nla))
+		if (__nft_expr_type_get(nla))
 			return ERR_PTR(-EAGAIN);
 	}
 #endif
@@ -912,7 +912,7 @@ static const struct nla_policy nft_expr_policy[NFTA_EXPR_MAX + 1] = {
 static int nf_tables_fill_expr_info(struct sk_buff *skb,
 				    const struct nft_expr *expr)
 {
-	if (nla_put_string(skb, NFTA_EXPR_NAME, expr->ops->name))
+	if (nla_put_string(skb, NFTA_EXPR_NAME, expr->ops->type->name))
 		goto nla_put_failure;
 
 	if (expr->ops->dump) {
@@ -932,28 +932,52 @@ nla_put_failure:
 
 struct nft_expr_info {
 	const struct nft_expr_ops	*ops;
-	struct nlattr			*tb[NFTA_EXPR_MAX + 1];
+	struct nlattr			*tb[NFT_EXPR_MAXATTR + 1];
 };
 
 static int nf_tables_expr_parse(const struct nlattr *nla,
 				struct nft_expr_info *info)
 {
+	const struct nft_expr_type *type;
 	const struct nft_expr_ops *ops;
+	struct nlattr *tb[NFTA_EXPR_MAX + 1];
 	int err;
 
-	err = nla_parse_nested(info->tb, NFTA_EXPR_MAX, nla, nft_expr_policy);
+	err = nla_parse_nested(tb, NFTA_EXPR_MAX, nla, nft_expr_policy);
 	if (err < 0)
 		return err;
 
-	ops = nft_expr_ops_get(info->tb[NFTA_EXPR_NAME]);
-	if (IS_ERR(ops))
-		return PTR_ERR(ops);
+	type = nft_expr_type_get(tb[NFTA_EXPR_NAME]);
+	if (IS_ERR(type))
+		return PTR_ERR(type);
+
+	if (tb[NFTA_EXPR_DATA]) {
+		err = nla_parse_nested(info->tb, type->maxattr,
+				       tb[NFTA_EXPR_DATA], type->policy);
+		if (err < 0)
+			goto err1;
+	} else
+		memset(info->tb, 0, sizeof(info->tb[0]) * (type->maxattr + 1));
+
+	if (type->select_ops != NULL) {
+		ops = type->select_ops((const struct nlattr * const *)info->tb);
+		if (IS_ERR(ops)) {
+			err = PTR_ERR(ops);
+			goto err1;
+		}
+	} else
+		ops = type->ops;
+
 	info->ops = ops;
 	return 0;
+
+err1:
+	module_put(type->owner);
+	return err;
 }
 
 static int nf_tables_newexpr(const struct nft_ctx *ctx,
-			     struct nft_expr_info *info,
+			     const struct nft_expr_info *info,
 			     struct nft_expr *expr)
 {
 	const struct nft_expr_ops *ops = info->ops;
@@ -961,23 +985,11 @@ static int nf_tables_newexpr(const struct nft_ctx *ctx,
 
 	expr->ops = ops;
 	if (ops->init) {
-		struct nlattr *ma[ops->maxattr + 1];
-
-		if (info->tb[NFTA_EXPR_DATA]) {
-			err = nla_parse_nested(ma, ops->maxattr,
-					       info->tb[NFTA_EXPR_DATA],
-					       ops->policy);
-			if (err < 0)
-				goto err1;
-		} else
-			memset(ma, 0, sizeof(ma[0]) * (ops->maxattr + 1));
-
-		err = ops->init(ctx, expr, (const struct nlattr **)ma);
+		err = ops->init(ctx, expr, (const struct nlattr **)info->tb);
 		if (err < 0)
 			goto err1;
 	}
 
-	info->ops = NULL;
 	return 0;
 
 err1:
@@ -989,7 +1001,7 @@ static void nf_tables_expr_destroy(struct nft_expr *expr)
 {
 	if (expr->ops->destroy)
 		expr->ops->destroy(expr);
-	module_put(expr->ops->owner);
+	module_put(expr->ops->type->owner);
 }
 
 /*
@@ -1313,6 +1325,7 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 		err = nf_tables_newexpr(&ctx, &info[i], expr);
 		if (err < 0)
 			goto err2;
+		info[i].ops = NULL;
 		expr = nft_expr_next(expr);
 	}
 
@@ -1341,7 +1354,7 @@ err2:
 err1:
 	for (i = 0; i < n; i++) {
 		if (info[i].ops != NULL)
-			module_put(info[i].ops->owner);
+			module_put(info[i].ops->type->owner);
 	}
 	return err;
 }
diff --git a/net/netfilter/nft_bitwise.c b/net/netfilter/nft_bitwise.c
index 0f7501506367..4fb6ee2c1106 100644
--- a/net/netfilter/nft_bitwise.c
+++ b/net/netfilter/nft_bitwise.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2008-2009 Patrick McHardy <kaber@trash.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -118,23 +118,29 @@ nla_put_failure:
 	return -1;
 }
 
-static struct nft_expr_ops nft_bitwise_ops __read_mostly = {
-	.name		= "bitwise",
+static struct nft_expr_type nft_bitwise_type;
+static const struct nft_expr_ops nft_bitwise_ops = {
+	.type		= &nft_bitwise_type,
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_bitwise)),
-	.owner		= THIS_MODULE,
 	.eval		= nft_bitwise_eval,
 	.init		= nft_bitwise_init,
 	.dump		= nft_bitwise_dump,
+};
+
+static struct nft_expr_type nft_bitwise_type __read_mostly = {
+	.name		= "bitwise",
+	.ops		= &nft_bitwise_ops,
 	.policy		= nft_bitwise_policy,
 	.maxattr	= NFTA_BITWISE_MAX,
+	.owner		= THIS_MODULE,
 };
 
 int __init nft_bitwise_module_init(void)
 {
-	return nft_register_expr(&nft_bitwise_ops);
+	return nft_register_expr(&nft_bitwise_type);
 }
 
 void nft_bitwise_module_exit(void)
 {
-	nft_unregister_expr(&nft_bitwise_ops);
+	nft_unregister_expr(&nft_bitwise_type);
 }
diff --git a/net/netfilter/nft_byteorder.c b/net/netfilter/nft_byteorder.c
index 8b0657a4d17b..c39ed8d29df1 100644
--- a/net/netfilter/nft_byteorder.c
+++ b/net/netfilter/nft_byteorder.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2008-2009 Patrick McHardy <kaber@trash.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -145,23 +145,29 @@ nla_put_failure:
 	return -1;
 }
 
-static struct nft_expr_ops nft_byteorder_ops __read_mostly = {
-	.name		= "byteorder",
+static struct nft_expr_type nft_byteorder_type;
+static const struct nft_expr_ops nft_byteorder_ops = {
+	.type		= &nft_byteorder_type,
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_byteorder)),
-	.owner		= THIS_MODULE,
 	.eval		= nft_byteorder_eval,
 	.init		= nft_byteorder_init,
 	.dump		= nft_byteorder_dump,
+};
+
+static struct nft_expr_type nft_byteorder_type __read_mostly = {
+	.name		= "byteorder",
+	.ops		= &nft_byteorder_ops,
 	.policy		= nft_byteorder_policy,
 	.maxattr	= NFTA_BYTEORDER_MAX,
+	.owner		= THIS_MODULE,
 };
 
 int __init nft_byteorder_module_init(void)
 {
-	return nft_register_expr(&nft_byteorder_ops);
+	return nft_register_expr(&nft_byteorder_type);
 }
 
 void nft_byteorder_module_exit(void)
 {
-	nft_unregister_expr(&nft_byteorder_ops);
+	nft_unregister_expr(&nft_byteorder_type);
 }
diff --git a/net/netfilter/nft_cmp.c b/net/netfilter/nft_cmp.c
index e734d670120a..2c9d5fef2e63 100644
--- a/net/netfilter/nft_cmp.c
+++ b/net/netfilter/nft_cmp.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2008-2009 Patrick McHardy <kaber@trash.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -124,23 +124,29 @@ nla_put_failure:
 	return -1;
 }
 
-static struct nft_expr_ops nft_cmp_ops __read_mostly = {
-	.name		= "cmp",
+static struct nft_expr_type nft_cmp_type;
+static const struct nft_expr_ops nft_cmp_ops = {
+	.type		= &nft_cmp_type,
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_cmp_expr)),
-	.owner		= THIS_MODULE,
 	.eval		= nft_cmp_eval,
 	.init		= nft_cmp_init,
 	.dump		= nft_cmp_dump,
+};
+
+static struct nft_expr_type nft_cmp_type __read_mostly = {
+	.name		= "cmp",
+	.ops		= &nft_cmp_ops,
 	.policy		= nft_cmp_policy,
 	.maxattr	= NFTA_CMP_MAX,
+	.owner		= THIS_MODULE,
 };
 
 int __init nft_cmp_module_init(void)
 {
-	return nft_register_expr(&nft_cmp_ops);
+	return nft_register_expr(&nft_cmp_type);
 }
 
 void nft_cmp_module_exit(void)
 {
-	nft_unregister_expr(&nft_cmp_ops);
+	nft_unregister_expr(&nft_cmp_type);
 }
diff --git a/net/netfilter/nft_counter.c b/net/netfilter/nft_counter.c
index 33c5d36819bb..c89ee486ce54 100644
--- a/net/netfilter/nft_counter.c
+++ b/net/netfilter/nft_counter.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2008-2009 Patrick McHardy <kaber@trash.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -78,25 +78,31 @@ static int nft_counter_init(const struct nft_ctx *ctx,
 	return 0;
 }
 
-static struct nft_expr_ops nft_counter_ops __read_mostly = {
-	.name		= "counter",
+static struct nft_expr_type nft_counter_type;
+static const struct nft_expr_ops nft_counter_ops = {
+	.type		= &nft_counter_type,
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_counter)),
-	.policy		= nft_counter_policy,
-	.maxattr	= NFTA_COUNTER_MAX,
-	.owner		= THIS_MODULE,
 	.eval		= nft_counter_eval,
 	.init		= nft_counter_init,
 	.dump		= nft_counter_dump,
 };
 
+static struct nft_expr_type nft_counter_type __read_mostly = {
+	.name		= "counter",
+	.ops		= &nft_counter_ops,
+	.policy		= nft_counter_policy,
+	.maxattr	= NFTA_COUNTER_MAX,
+	.owner		= THIS_MODULE,
+};
+
 static int __init nft_counter_module_init(void)
 {
-	return nft_register_expr(&nft_counter_ops);
+	return nft_register_expr(&nft_counter_type);
 }
 
 static void __exit nft_counter_module_exit(void)
 {
-	nft_unregister_expr(&nft_counter_ops);
+	nft_unregister_expr(&nft_counter_type);
 }
 
 module_init(nft_counter_module_init);
diff --git a/net/netfilter/nft_ct.c b/net/netfilter/nft_ct.c
index a1756d678226..955f4e6e7089 100644
--- a/net/netfilter/nft_ct.c
+++ b/net/netfilter/nft_ct.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2008-2009 Patrick McHardy <kaber@trash.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -222,26 +222,32 @@ nla_put_failure:
 	return -1;
 }
 
-static struct nft_expr_ops nft_ct_ops __read_mostly = {
-	.name		= "ct",
+static struct nft_expr_type nft_ct_type;
+static const struct nft_expr_ops nft_ct_ops = {
+	.type		= &nft_ct_type,
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_ct)),
-	.owner		= THIS_MODULE,
 	.eval		= nft_ct_eval,
 	.init		= nft_ct_init,
 	.destroy	= nft_ct_destroy,
 	.dump		= nft_ct_dump,
+};
+
+static struct nft_expr_type nft_ct_type __read_mostly = {
+	.name		= "ct",
+	.ops		= &nft_ct_ops,
 	.policy		= nft_ct_policy,
 	.maxattr	= NFTA_CT_MAX,
+	.owner		= THIS_MODULE,
 };
 
 static int __init nft_ct_module_init(void)
 {
-	return nft_register_expr(&nft_ct_ops);
+	return nft_register_expr(&nft_ct_type);
 }
 
 static void __exit nft_ct_module_exit(void)
 {
-	nft_unregister_expr(&nft_ct_ops);
+	nft_unregister_expr(&nft_ct_type);
 }
 
 module_init(nft_ct_module_init);
diff --git a/net/netfilter/nft_expr_template.c b/net/netfilter/nft_expr_template.c
index 9fc8eb308193..b6eed4d5a096 100644
--- a/net/netfilter/nft_expr_template.c
+++ b/net/netfilter/nft_expr_template.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2008-2009 Patrick McHardy <kaber@trash.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -33,7 +33,7 @@ static const struct nla_policy nft_template_policy[NFTA_TEMPLATE_MAX + 1] = {
 
 static int nft_template_init(const struct nft_ctx *ctx,
 			   const struct nft_expr *expr,
-			   const struct nlattr *tb[])
+			   const struct nlattr * const tb[])
 {
 	struct nft_template *priv = nft_expr_priv(expr);
 
@@ -58,26 +58,32 @@ nla_put_failure:
 	return -1;
 }
 
-static struct nft_expr_ops template_ops __read_mostly = {
-	.name		= "template",
+static struct nft_expr_type nft_template_type;
+static const struct nft_expr_ops nft_template_ops = {
+	.type		= &nft_template_type,
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_template)),
-	.owner		= THIS_MODULE,
 	.eval		= nft_template_eval,
 	.init		= nft_template_init,
 	.destroy	= nft_template_destroy,
 	.dump		= nft_template_dump,
+};
+
+static struct nft_expr_type nft_template_type __read_mostly = {
+	.name		= "template",
+	.ops		= &nft_template_ops,
 	.policy		= nft_template_policy,
 	.maxattr	= NFTA_TEMPLATE_MAX,
+	.owner		= THIS_MODULE,
 };
 
 static int __init nft_template_module_init(void)
 {
-	return nft_register_expr(&template_ops);
+	return nft_register_expr(&nft_template_type);
 }
 
 static void __exit nft_template_module_exit(void)
 {
-	nft_unregister_expr(&template_ops);
+	nft_unregister_expr(&nft_template_type);
 }
 
 module_init(nft_template_module_init);
diff --git a/net/netfilter/nft_exthdr.c b/net/netfilter/nft_exthdr.c
index 21c6a6b7b662..8e0bb75e7c51 100644
--- a/net/netfilter/nft_exthdr.c
+++ b/net/netfilter/nft_exthdr.c
@@ -98,25 +98,31 @@ nla_put_failure:
 	return -1;
 }
 
-static struct nft_expr_ops exthdr_ops __read_mostly = {
-	.name		= "exthdr",
+static struct nft_expr_type nft_exthdr_type;
+static const struct nft_expr_ops nft_exthdr_ops = {
+	.type		= &nft_exthdr_type,
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_exthdr)),
-	.owner		= THIS_MODULE,
 	.eval		= nft_exthdr_eval,
 	.init		= nft_exthdr_init,
 	.dump		= nft_exthdr_dump,
+};
+
+static struct nft_expr_type nft_exthdr_type __read_mostly = {
+	.name		= "exthdr",
+	.ops		= &nft_exthdr_ops,
 	.policy		= nft_exthdr_policy,
 	.maxattr	= NFTA_EXTHDR_MAX,
+	.owner		= THIS_MODULE,
 };
 
 static int __init nft_exthdr_module_init(void)
 {
-	return nft_register_expr(&exthdr_ops);
+	return nft_register_expr(&nft_exthdr_type);
 }
 
 static void __exit nft_exthdr_module_exit(void)
 {
-	nft_unregister_expr(&exthdr_ops);
+	nft_unregister_expr(&nft_exthdr_type);
 }
 
 module_init(nft_exthdr_module_init);
diff --git a/net/netfilter/nft_immediate.c b/net/netfilter/nft_immediate.c
index 78334bf37007..1bfeeaf865b6 100644
--- a/net/netfilter/nft_immediate.c
+++ b/net/netfilter/nft_immediate.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2008-2009 Patrick McHardy <kaber@trash.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -100,25 +100,31 @@ static const struct nft_data *nft_immediate_get_verdict(const struct nft_expr *e
 		return NULL;
 }
 
-static struct nft_expr_ops nft_imm_ops __read_mostly = {
-	.name		= "immediate",
+static struct nft_expr_type nft_imm_type;
+static const struct nft_expr_ops nft_imm_ops = {
+	.type		= &nft_imm_type,
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_immediate_expr)),
-	.owner		= THIS_MODULE,
 	.eval		= nft_immediate_eval,
 	.init		= nft_immediate_init,
 	.destroy	= nft_immediate_destroy,
 	.dump		= nft_immediate_dump,
 	.get_verdict	= nft_immediate_get_verdict,
+};
+
+static struct nft_expr_type nft_imm_type __read_mostly = {
+	.name		= "immediate",
+	.ops		= &nft_imm_ops,
 	.policy		= nft_immediate_policy,
 	.maxattr	= NFTA_IMMEDIATE_MAX,
+	.owner		= THIS_MODULE,
 };
 
 int __init nft_immediate_module_init(void)
 {
-	return nft_register_expr(&nft_imm_ops);
+	return nft_register_expr(&nft_imm_type);
 }
 
 void nft_immediate_module_exit(void)
 {
-	nft_unregister_expr(&nft_imm_ops);
+	nft_unregister_expr(&nft_imm_type);
 }
diff --git a/net/netfilter/nft_limit.c b/net/netfilter/nft_limit.c
index e0e3fc8aebc3..85da5bd02f64 100644
--- a/net/netfilter/nft_limit.c
+++ b/net/netfilter/nft_limit.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2008-2009 Patrick McHardy <kaber@trash.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -84,25 +84,31 @@ nla_put_failure:
 	return -1;
 }
 
-static struct nft_expr_ops nft_limit_ops __read_mostly = {
-	.name		= "limit",
+static struct nft_expr_type nft_limit_type;
+static const struct nft_expr_ops nft_limit_ops = {
+	.type		= &nft_limit_type,
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_limit)),
-	.owner		= THIS_MODULE,
 	.eval		= nft_limit_eval,
 	.init		= nft_limit_init,
 	.dump		= nft_limit_dump,
+};
+
+static struct nft_expr_type nft_limit_type __read_mostly = {
+	.name		= "limit",
+	.ops		= &nft_limit_ops,
 	.policy		= nft_limit_policy,
 	.maxattr	= NFTA_LIMIT_MAX,
+	.owner		= THIS_MODULE,
 };
 
 static int __init nft_limit_module_init(void)
 {
-	return nft_register_expr(&nft_limit_ops);
+	return nft_register_expr(&nft_limit_type);
 }
 
 static void __exit nft_limit_module_exit(void)
 {
-	nft_unregister_expr(&nft_limit_ops);
+	nft_unregister_expr(&nft_limit_type);
 }
 
 module_init(nft_limit_module_init);
diff --git a/net/netfilter/nft_log.c b/net/netfilter/nft_log.c
index da495c3b1e7e..57cad072a13e 100644
--- a/net/netfilter/nft_log.c
+++ b/net/netfilter/nft_log.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2008-2009 Patrick McHardy <kaber@trash.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -110,26 +110,32 @@ nla_put_failure:
 	return -1;
 }
 
-static struct nft_expr_ops nft_log_ops __read_mostly = {
-	.name		= "log",
+static struct nft_expr_type nft_log_type;
+static const struct nft_expr_ops nft_log_ops = {
+	.type		= &nft_log_type,
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_log)),
-	.owner		= THIS_MODULE,
 	.eval		= nft_log_eval,
 	.init		= nft_log_init,
 	.destroy	= nft_log_destroy,
 	.dump		= nft_log_dump,
+};
+
+static struct nft_expr_type nft_log_type __read_mostly = {
+	.name		= "log",
+	.ops		= &nft_log_ops,
 	.policy		= nft_log_policy,
 	.maxattr	= NFTA_LOG_MAX,
+	.owner		= THIS_MODULE,
 };
 
 static int __init nft_log_module_init(void)
 {
-	return nft_register_expr(&nft_log_ops);
+	return nft_register_expr(&nft_log_type);
 }
 
 static void __exit nft_log_module_exit(void)
 {
-	nft_unregister_expr(&nft_log_ops);
+	nft_unregister_expr(&nft_log_type);
 }
 
 module_init(nft_log_module_init);
diff --git a/net/netfilter/nft_lookup.c b/net/netfilter/nft_lookup.c
index 4962d2173678..8a6116b75b5a 100644
--- a/net/netfilter/nft_lookup.c
+++ b/net/netfilter/nft_lookup.c
@@ -112,24 +112,30 @@ nla_put_failure:
 	return -1;
 }
 
-static struct nft_expr_ops nft_lookup_ops __read_mostly = {
-	.name		= "lookup",
+static struct nft_expr_type nft_lookup_type;
+static const struct nft_expr_ops nft_lookup_ops = {
+	.type		= &nft_lookup_type,
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_lookup)),
-	.owner		= THIS_MODULE,
 	.eval		= nft_lookup_eval,
 	.init		= nft_lookup_init,
 	.destroy	= nft_lookup_destroy,
 	.dump		= nft_lookup_dump,
+};
+
+static struct nft_expr_type nft_lookup_type __read_mostly = {
+	.name		= "lookup",
+	.ops		= &nft_lookup_ops,
 	.policy		= nft_lookup_policy,
 	.maxattr	= NFTA_LOOKUP_MAX,
+	.owner		= THIS_MODULE,
 };
 
 int __init nft_lookup_module_init(void)
 {
-	return nft_register_expr(&nft_lookup_ops);
+	return nft_register_expr(&nft_lookup_type);
 }
 
 void nft_lookup_module_exit(void)
 {
-	nft_unregister_expr(&nft_lookup_ops);
+	nft_unregister_expr(&nft_lookup_type);
 }
diff --git a/net/netfilter/nft_meta.c b/net/netfilter/nft_meta.c
index 96735aa2f039..8c28220a90b3 100644
--- a/net/netfilter/nft_meta.c
+++ b/net/netfilter/nft_meta.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2008-2009 Patrick McHardy <kaber@trash.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -193,25 +193,31 @@ nla_put_failure:
 	return -1;
 }
 
-static struct nft_expr_ops nft_meta_ops __read_mostly = {
-	.name		= "meta",
+static struct nft_expr_type nft_meta_type;
+static const struct nft_expr_ops nft_meta_ops = {
+	.type		= &nft_meta_type,
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_meta)),
-	.owner		= THIS_MODULE,
 	.eval		= nft_meta_eval,
 	.init		= nft_meta_init,
 	.dump		= nft_meta_dump,
+};
+
+static struct nft_expr_type nft_meta_type __read_mostly = {
+	.name		= "meta",
+	.ops		= &nft_meta_ops,
 	.policy		= nft_meta_policy,
 	.maxattr	= NFTA_META_MAX,
+	.owner		= THIS_MODULE,
 };
 
 static int __init nft_meta_module_init(void)
 {
-	return nft_register_expr(&nft_meta_ops);
+	return nft_register_expr(&nft_meta_type);
 }
 
 static void __exit nft_meta_module_exit(void)
 {
-	nft_unregister_expr(&nft_meta_ops);
+	nft_unregister_expr(&nft_meta_type);
 }
 
 module_init(nft_meta_module_init);
diff --git a/net/netfilter/nft_payload.c b/net/netfilter/nft_payload.c
index 329f134b3f89..d99db6e37fb1 100644
--- a/net/netfilter/nft_payload.c
+++ b/net/netfilter/nft_payload.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2008-2009 Patrick McHardy <kaber@trash.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -115,23 +115,29 @@ nla_put_failure:
 	return -1;
 }
 
-static struct nft_expr_ops nft_payload_ops __read_mostly = {
-	.name		= "payload",
+static struct nft_expr_type nft_payload_type;
+static const struct nft_expr_ops nft_payload_ops = {
+	.type		= &nft_payload_type,
 	.size		= NFT_EXPR_SIZE(sizeof(struct nft_payload)),
-	.owner		= THIS_MODULE,
 	.eval		= nft_payload_eval,
 	.init		= nft_payload_init,
 	.dump		= nft_payload_dump,
+};
+
+static struct nft_expr_type nft_payload_type __read_mostly = {
+	.name		= "payload",
+	.ops		= &nft_payload_ops,
 	.policy		= nft_payload_policy,
 	.maxattr	= NFTA_PAYLOAD_MAX,
+	.owner		= THIS_MODULE,
 };
 
 int __init nft_payload_module_init(void)
 {
-	return nft_register_expr(&nft_payload_ops);
+	return nft_register_expr(&nft_payload_type);
 }
 
 void nft_payload_module_exit(void)
 {
-	nft_unregister_expr(&nft_payload_ops);
+	nft_unregister_expr(&nft_payload_type);
 }
-- 
cgit 


From cb7dbfd0390c9e244339f3270fe8649568241812 Mon Sep 17 00:00:00 2001
From: Patrick McHardy <kaber@trash.net>
Date: Thu, 10 Oct 2013 23:35:40 +0200
Subject: netfilter: nf_tables: add optimized data comparison for small values

Add an optimized version of nft_data_cmp() that only handles values of to
4 bytes length.

This patch includes original Patrick McHardy's patch entitled (nf_tables:
inline nft_cmp_fast_eval() into main evaluation loop).

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/net/netfilter/nf_tables_core.h |   8 +++
 net/netfilter/nf_tables_core.c         |  18 ++++-
 net/netfilter/nft_cmp.c                | 116 ++++++++++++++++++++++++++-------
 3 files changed, 118 insertions(+), 24 deletions(-)

diff --git a/include/net/netfilter/nf_tables_core.h b/include/net/netfilter/nf_tables_core.h
index 283396c916e0..3df6a9be3bdd 100644
--- a/include/net/netfilter/nf_tables_core.h
+++ b/include/net/netfilter/nf_tables_core.h
@@ -7,6 +7,14 @@ extern void nf_tables_core_module_exit(void);
 extern int nft_immediate_module_init(void);
 extern void nft_immediate_module_exit(void);
 
+struct nft_cmp_fast_expr {
+	u32			data;
+	enum nft_registers	sreg:8;
+	u8			len;
+};
+
+extern const struct nft_expr_ops nft_cmp_fast_ops;
+
 extern int nft_cmp_module_init(void);
 extern void nft_cmp_module_exit(void);
 
diff --git a/net/netfilter/nf_tables_core.c b/net/netfilter/nf_tables_core.c
index fd0ecd3255c1..24000182c8e7 100644
--- a/net/netfilter/nf_tables_core.c
+++ b/net/netfilter/nf_tables_core.c
@@ -20,6 +20,18 @@
 #include <net/netfilter/nf_tables_core.h>
 #include <net/netfilter/nf_tables.h>
 
+static void nft_cmp_fast_eval(const struct nft_expr *expr,
+			      struct nft_data data[NFT_REG_MAX + 1])
+{
+	const struct nft_cmp_fast_expr *priv = nft_expr_priv(expr);
+	u32 mask;
+
+	mask = ~0U >> (sizeof(priv->data) * BITS_PER_BYTE - priv->len);
+	if ((data[priv->sreg].data[0] & mask) == priv->data)
+		return;
+	data[NFT_REG_VERDICT].verdict = NFT_BREAK;
+}
+
 unsigned int nft_do_chain(const struct nf_hook_ops *ops,
 			  struct sk_buff *skb,
 			  const struct net_device *in,
@@ -48,7 +60,11 @@ next_rule:
 	data[NFT_REG_VERDICT].verdict = NFT_CONTINUE;
 	list_for_each_entry_continue_rcu(rule, &chain->rules, list) {
 		nft_rule_for_each_expr(expr, last, rule) {
-			expr->ops->eval(expr, data, &pkt);
+			if (expr->ops == &nft_cmp_fast_ops)
+				nft_cmp_fast_eval(expr, data);
+			else
+				expr->ops->eval(expr, data, &pkt);
+
 			if (data[NFT_REG_VERDICT].verdict != NFT_CONTINUE)
 				break;
 		}
diff --git a/net/netfilter/nft_cmp.c b/net/netfilter/nft_cmp.c
index 2c9d5fef2e63..37134f3e84fb 100644
--- a/net/netfilter/nft_cmp.c
+++ b/net/netfilter/nft_cmp.c
@@ -75,32 +75,11 @@ static int nft_cmp_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
 	struct nft_data_desc desc;
 	int err;
 
-	if (tb[NFTA_CMP_SREG] == NULL ||
-	    tb[NFTA_CMP_OP] == NULL ||
-	    tb[NFTA_CMP_DATA] == NULL)
-		return -EINVAL;
-
 	priv->sreg = ntohl(nla_get_be32(tb[NFTA_CMP_SREG]));
-	err = nft_validate_input_register(priv->sreg);
-	if (err < 0)
-		return err;
-
 	priv->op = ntohl(nla_get_be32(tb[NFTA_CMP_OP]));
-	switch (priv->op) {
-	case NFT_CMP_EQ:
-	case NFT_CMP_NEQ:
-	case NFT_CMP_LT:
-	case NFT_CMP_LTE:
-	case NFT_CMP_GT:
-	case NFT_CMP_GTE:
-		break;
-	default:
-		return -EINVAL;
-	}
 
 	err = nft_data_init(NULL, &priv->data, &desc, tb[NFTA_CMP_DATA]);
-	if (err < 0)
-		return err;
+	BUG_ON(err < 0);
 
 	priv->len = desc.len;
 	return 0;
@@ -133,9 +112,100 @@ static const struct nft_expr_ops nft_cmp_ops = {
 	.dump		= nft_cmp_dump,
 };
 
+static int nft_cmp_fast_init(const struct nft_ctx *ctx,
+			     const struct nft_expr *expr,
+			     const struct nlattr * const tb[])
+{
+	struct nft_cmp_fast_expr *priv = nft_expr_priv(expr);
+	struct nft_data_desc desc;
+	struct nft_data data;
+	u32 mask;
+	int err;
+
+	priv->sreg = ntohl(nla_get_be32(tb[NFTA_CMP_SREG]));
+
+	err = nft_data_init(NULL, &data, &desc, tb[NFTA_CMP_DATA]);
+	BUG_ON(err < 0);
+	desc.len *= BITS_PER_BYTE;
+
+	mask = ~0U >> (sizeof(priv->data) * BITS_PER_BYTE - desc.len);
+	priv->data = data.data[0] & mask;
+	priv->len  = desc.len;
+	return 0;
+}
+
+static int nft_cmp_fast_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	const struct nft_cmp_fast_expr *priv = nft_expr_priv(expr);
+	struct nft_data data;
+
+	if (nla_put_be32(skb, NFTA_CMP_SREG, htonl(priv->sreg)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_CMP_OP, htonl(NFT_CMP_EQ)))
+		goto nla_put_failure;
+
+	data.data[0] = priv->data;
+	if (nft_data_dump(skb, NFTA_CMP_DATA, &data,
+			  NFT_DATA_VALUE, priv->len / BITS_PER_BYTE) < 0)
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+const struct nft_expr_ops nft_cmp_fast_ops = {
+	.type		= &nft_cmp_type,
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_cmp_fast_expr)),
+	.eval		= NULL,	/* inlined */
+	.init		= nft_cmp_fast_init,
+	.dump		= nft_cmp_fast_dump,
+};
+
+static const struct nft_expr_ops *nft_cmp_select_ops(const struct nlattr * const tb[])
+{
+	struct nft_data_desc desc;
+	struct nft_data data;
+	enum nft_registers sreg;
+	enum nft_cmp_ops op;
+	int err;
+
+	if (tb[NFTA_CMP_SREG] == NULL ||
+	    tb[NFTA_CMP_OP] == NULL ||
+	    tb[NFTA_CMP_DATA] == NULL)
+		return ERR_PTR(-EINVAL);
+
+	sreg = ntohl(nla_get_be32(tb[NFTA_CMP_SREG]));
+	err = nft_validate_input_register(sreg);
+	if (err < 0)
+		return ERR_PTR(err);
+
+	op = ntohl(nla_get_be32(tb[NFTA_CMP_OP]));
+	switch (op) {
+	case NFT_CMP_EQ:
+	case NFT_CMP_NEQ:
+	case NFT_CMP_LT:
+	case NFT_CMP_LTE:
+	case NFT_CMP_GT:
+	case NFT_CMP_GTE:
+		break;
+	default:
+		return ERR_PTR(-EINVAL);
+	}
+
+	err = nft_data_init(NULL, &data, &desc, tb[NFTA_CMP_DATA]);
+	if (err < 0)
+		return ERR_PTR(err);
+
+	if (desc.len <= sizeof(u32) && op == NFT_CMP_EQ)
+		return &nft_cmp_fast_ops;
+	else
+		return &nft_cmp_ops;
+}
+
 static struct nft_expr_type nft_cmp_type __read_mostly = {
 	.name		= "cmp",
-	.ops		= &nft_cmp_ops,
+	.select_ops	= nft_cmp_select_ops,
 	.policy		= nft_cmp_policy,
 	.maxattr	= NFTA_CMP_MAX,
 	.owner		= THIS_MODULE,
-- 
cgit 


From c29b72e02573b8fe5e6cae5d192a6a4772e7bbd6 Mon Sep 17 00:00:00 2001
From: Patrick McHardy <kaber@trash.net>
Date: Thu, 10 Oct 2013 11:06:41 +0200
Subject: netfilter: nft_payload: add optimized payload implementation for
 small loads

Add an optimized payload expression implementation for small (up to 4 bytes)
aligned data loads from the linear packet area.

This patch also includes original Patrick McHardy's entitled (nf_tables:
inline nft_payload_fast_eval() into main evaluation loop).

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/net/netfilter/nf_tables_core.h |  9 +++++
 net/netfilter/nf_tables_core.c         | 31 ++++++++++++++-
 net/netfilter/nft_payload.c            | 69 +++++++++++++++++++++-------------
 3 files changed, 81 insertions(+), 28 deletions(-)

diff --git a/include/net/netfilter/nf_tables_core.h b/include/net/netfilter/nf_tables_core.h
index 3df6a9be3bdd..fe7b16206a4e 100644
--- a/include/net/netfilter/nf_tables_core.h
+++ b/include/net/netfilter/nf_tables_core.h
@@ -27,6 +27,15 @@ extern void nft_bitwise_module_exit(void);
 extern int nft_byteorder_module_init(void);
 extern void nft_byteorder_module_exit(void);
 
+struct nft_payload {
+	enum nft_payload_bases	base:8;
+	u8			offset;
+	u8			len;
+	enum nft_registers	dreg:8;
+};
+
+extern const struct nft_expr_ops nft_payload_fast_ops;
+
 extern int nft_payload_module_init(void);
 extern void nft_payload_module_exit(void);
 
diff --git a/net/netfilter/nf_tables_core.c b/net/netfilter/nf_tables_core.c
index 24000182c8e7..9aede59ed2d7 100644
--- a/net/netfilter/nf_tables_core.c
+++ b/net/netfilter/nf_tables_core.c
@@ -32,6 +32,34 @@ static void nft_cmp_fast_eval(const struct nft_expr *expr,
 	data[NFT_REG_VERDICT].verdict = NFT_BREAK;
 }
 
+static bool nft_payload_fast_eval(const struct nft_expr *expr,
+				  struct nft_data data[NFT_REG_MAX + 1],
+				  const struct nft_pktinfo *pkt)
+{
+	const struct nft_payload *priv = nft_expr_priv(expr);
+	const struct sk_buff *skb = pkt->skb;
+	struct nft_data *dest = &data[priv->dreg];
+	unsigned char *ptr;
+
+	if (priv->base == NFT_PAYLOAD_NETWORK_HEADER)
+		ptr = skb_network_header(skb);
+	else
+		ptr = skb_transport_header(skb);
+
+	ptr += priv->offset;
+
+	if (unlikely(ptr + priv->len >= skb_tail_pointer(skb)))
+		return false;
+
+	if (priv->len == 2)
+		*(u16 *)dest->data = *(u16 *)ptr;
+	else if (priv->len == 4)
+		*(u32 *)dest->data = *(u32 *)ptr;
+	else
+		*(u8 *)dest->data = *(u8 *)ptr;
+	return true;
+}
+
 unsigned int nft_do_chain(const struct nf_hook_ops *ops,
 			  struct sk_buff *skb,
 			  const struct net_device *in,
@@ -62,7 +90,8 @@ next_rule:
 		nft_rule_for_each_expr(expr, last, rule) {
 			if (expr->ops == &nft_cmp_fast_ops)
 				nft_cmp_fast_eval(expr, data);
-			else
+			else if (expr->ops != &nft_payload_fast_ops ||
+				 !nft_payload_fast_eval(expr, data, &pkt))
 				expr->ops->eval(expr, data, &pkt);
 
 			if (data[NFT_REG_VERDICT].verdict != NFT_CONTINUE)
diff --git a/net/netfilter/nft_payload.c b/net/netfilter/nft_payload.c
index d99db6e37fb1..7cf13f7e1e94 100644
--- a/net/netfilter/nft_payload.c
+++ b/net/netfilter/nft_payload.c
@@ -17,13 +17,6 @@
 #include <net/netfilter/nf_tables_core.h>
 #include <net/netfilter/nf_tables.h>
 
-struct nft_payload {
-	enum nft_payload_bases	base:8;
-	u8			offset;
-	u8			len;
-	enum nft_registers	dreg:8;
-};
-
 static void nft_payload_eval(const struct nft_expr *expr,
 			     struct nft_data data[NFT_REG_MAX + 1],
 			     const struct nft_pktinfo *pkt)
@@ -71,27 +64,9 @@ static int nft_payload_init(const struct nft_ctx *ctx,
 	struct nft_payload *priv = nft_expr_priv(expr);
 	int err;
 
-	if (tb[NFTA_PAYLOAD_DREG] == NULL ||
-	    tb[NFTA_PAYLOAD_BASE] == NULL ||
-	    tb[NFTA_PAYLOAD_OFFSET] == NULL ||
-	    tb[NFTA_PAYLOAD_LEN] == NULL)
-		return -EINVAL;
-
-	priv->base = ntohl(nla_get_be32(tb[NFTA_PAYLOAD_BASE]));
-	switch (priv->base) {
-	case NFT_PAYLOAD_LL_HEADER:
-	case NFT_PAYLOAD_NETWORK_HEADER:
-	case NFT_PAYLOAD_TRANSPORT_HEADER:
-		break;
-	default:
-		return -EOPNOTSUPP;
-	}
-
+	priv->base   = ntohl(nla_get_be32(tb[NFTA_PAYLOAD_BASE]));
 	priv->offset = ntohl(nla_get_be32(tb[NFTA_PAYLOAD_OFFSET]));
 	priv->len    = ntohl(nla_get_be32(tb[NFTA_PAYLOAD_LEN]));
-	if (priv->len == 0 ||
-	    priv->len > FIELD_SIZEOF(struct nft_data, data))
-		return -EINVAL;
 
 	priv->dreg = ntohl(nla_get_be32(tb[NFTA_PAYLOAD_DREG]));
 	err = nft_validate_output_register(priv->dreg);
@@ -124,9 +99,49 @@ static const struct nft_expr_ops nft_payload_ops = {
 	.dump		= nft_payload_dump,
 };
 
+const struct nft_expr_ops nft_payload_fast_ops = {
+	.type		= &nft_payload_type,
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_payload)),
+	.eval		= nft_payload_eval,
+	.init		= nft_payload_init,
+	.dump		= nft_payload_dump,
+};
+
+static const struct nft_expr_ops *nft_payload_select_ops(const struct nlattr * const tb[])
+{
+	enum nft_payload_bases base;
+	unsigned int offset, len;
+
+	if (tb[NFTA_PAYLOAD_DREG] == NULL ||
+	    tb[NFTA_PAYLOAD_BASE] == NULL ||
+	    tb[NFTA_PAYLOAD_OFFSET] == NULL ||
+	    tb[NFTA_PAYLOAD_LEN] == NULL)
+		return ERR_PTR(-EINVAL);
+
+	base = ntohl(nla_get_be32(tb[NFTA_PAYLOAD_BASE]));
+	switch (base) {
+	case NFT_PAYLOAD_LL_HEADER:
+	case NFT_PAYLOAD_NETWORK_HEADER:
+	case NFT_PAYLOAD_TRANSPORT_HEADER:
+		break;
+	default:
+		return ERR_PTR(-EOPNOTSUPP);
+	}
+
+	offset = ntohl(nla_get_be32(tb[NFTA_PAYLOAD_OFFSET]));
+	len = ntohl(nla_get_be32(tb[NFTA_PAYLOAD_LEN]));
+	if (len == 0 || len > FIELD_SIZEOF(struct nft_data, data))
+		return ERR_PTR(-EINVAL);
+
+	if (len <= 4 && IS_ALIGNED(offset, len) && base != NFT_PAYLOAD_LL_HEADER)
+		return &nft_payload_fast_ops;
+	else
+		return &nft_payload_ops;
+}
+
 static struct nft_expr_type nft_payload_type __read_mostly = {
 	.name		= "payload",
-	.ops		= &nft_payload_ops,
+	.select_ops	= nft_payload_select_ops,
 	.policy		= nft_payload_policy,
 	.maxattr	= NFTA_PAYLOAD_MAX,
 	.owner		= THIS_MODULE,
-- 
cgit 


From 9370761c56b66aa5c65e069a7b010111a025018d Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Thu, 10 Oct 2013 23:21:26 +0200
Subject: netfilter: nf_tables: convert built-in tables/chains to chain types

This patch converts built-in tables/chains to chain types that
allows you to deploy customized table and chain configurations from
userspace.

After this patch, you have to specify the chain type when
creating a new chain:

 add chain ip filter output { type filter hook input priority 0; }
                              ^^^^ ------

The existing chain types after this patch are: filter, route and
nat. Note that tables are just containers of chains with no specific
semantics, which is a significant change with regards to iptables.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/net/netfilter/nf_tables.h         |  31 ++-
 include/uapi/linux/netfilter/nf_tables.h  |   2 +
 net/ipv4/netfilter/Kconfig                |   8 +-
 net/ipv4/netfilter/Makefile               |   4 +-
 net/ipv4/netfilter/nf_table_nat_ipv4.c    | 415 ------------------------------
 net/ipv4/netfilter/nf_table_route_ipv4.c  |  97 -------
 net/ipv4/netfilter/nf_tables_ipv4.c       |  21 ++
 net/ipv4/netfilter/nft_chain_nat_ipv4.c   | 353 +++++++++++++++++++++++++
 net/ipv4/netfilter/nft_chain_route_ipv4.c |  86 +++++++
 net/ipv6/netfilter/Kconfig                |   4 +-
 net/ipv6/netfilter/Makefile               |   2 +-
 net/ipv6/netfilter/nf_table_route_ipv6.c  |  93 -------
 net/ipv6/netfilter/nf_tables_ipv6.c       |  22 +-
 net/ipv6/netfilter/nft_chain_route_ipv6.c |  82 ++++++
 net/netfilter/nf_tables_api.c             | 197 +++++++-------
 15 files changed, 682 insertions(+), 735 deletions(-)
 delete mode 100644 net/ipv4/netfilter/nf_table_nat_ipv4.c
 delete mode 100644 net/ipv4/netfilter/nf_table_route_ipv4.c
 create mode 100644 net/ipv4/netfilter/nft_chain_nat_ipv4.c
 create mode 100644 net/ipv4/netfilter/nft_chain_route_ipv4.c
 delete mode 100644 net/ipv6/netfilter/nf_table_route_ipv6.c
 create mode 100644 net/ipv6/netfilter/nft_chain_route_ipv6.c

diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index 66d0359702c6..8403f7f52e81 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -336,7 +336,6 @@ static inline struct nft_expr *nft_expr_last(const struct nft_rule *rule)
 
 enum nft_chain_flags {
 	NFT_BASE_CHAIN			= 0x1,
-	NFT_CHAIN_BUILTIN		= 0x2,
 };
 
 /**
@@ -362,14 +361,23 @@ struct nft_chain {
 	char				name[NFT_CHAIN_MAXNAMELEN];
 };
 
+enum nft_chain_type {
+	NFT_CHAIN_T_DEFAULT = 0,
+	NFT_CHAIN_T_ROUTE,
+	NFT_CHAIN_T_NAT,
+	NFT_CHAIN_T_MAX
+};
+
 /**
  *	struct nft_base_chain - nf_tables base chain
  *
  *	@ops: netfilter hook ops
+ *	@type: chain type
  *	@chain: the chain
  */
 struct nft_base_chain {
 	struct nf_hook_ops		ops;
+	enum nft_chain_type		type;
 	struct nft_chain		chain;
 };
 
@@ -384,10 +392,6 @@ extern unsigned int nft_do_chain(const struct nf_hook_ops *ops,
 				 const struct net_device *out,
 				 int (*okfn)(struct sk_buff *));
 
-enum nft_table_flags {
-	NFT_TABLE_BUILTIN		= 0x1,
-};
-
 /**
  *	struct nft_table - nf_tables table
  *
@@ -431,8 +435,17 @@ struct nft_af_info {
 extern int nft_register_afinfo(struct nft_af_info *);
 extern void nft_unregister_afinfo(struct nft_af_info *);
 
-extern int nft_register_table(struct nft_table *, int family);
-extern void nft_unregister_table(struct nft_table *, int family);
+struct nf_chain_type {
+	unsigned int		hook_mask;
+	const char		*name;
+	enum nft_chain_type	type;
+	nf_hookfn		*fn[NF_MAX_HOOKS];
+	struct module		*me;
+	int			family;
+};
+
+extern int nft_register_chain_type(struct nf_chain_type *);
+extern void nft_unregister_chain_type(struct nf_chain_type *);
 
 extern int nft_register_expr(struct nft_expr_type *);
 extern void nft_unregister_expr(struct nft_expr_type *);
@@ -440,8 +453,8 @@ extern void nft_unregister_expr(struct nft_expr_type *);
 #define MODULE_ALIAS_NFT_FAMILY(family)	\
 	MODULE_ALIAS("nft-afinfo-" __stringify(family))
 
-#define MODULE_ALIAS_NFT_TABLE(family, name) \
-	MODULE_ALIAS("nft-table-" __stringify(family) "-" name)
+#define MODULE_ALIAS_NFT_CHAIN(family, name) \
+	MODULE_ALIAS("nft-chain-" __stringify(family) "-" name)
 
 #define MODULE_ALIAS_NFT_EXPR(name) \
 	MODULE_ALIAS("nft-expr-" name)
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index 9e924014efe3..779cf951c8de 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -115,6 +115,7 @@ enum nft_table_attributes {
  * @NFTA_CHAIN_HANDLE: numeric handle of the chain (NLA_U64)
  * @NFTA_CHAIN_NAME: name of the chain (NLA_STRING)
  * @NFTA_CHAIN_HOOK: hook specification for basechains (NLA_NESTED: nft_hook_attributes)
+ * @NFTA_CHAIN_TYPE: type name of the string (NLA_NUL_STRING)
  */
 enum nft_chain_attributes {
 	NFTA_CHAIN_UNSPEC,
@@ -122,6 +123,7 @@ enum nft_chain_attributes {
 	NFTA_CHAIN_HANDLE,
 	NFTA_CHAIN_NAME,
 	NFTA_CHAIN_HOOK,
+	NFTA_CHAIN_TYPE,
 	__NFTA_CHAIN_MAX
 };
 #define NFTA_CHAIN_MAX		(__NFTA_CHAIN_MAX - 1)
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
index eb1d56ece361..ae65fe98bfbe 100644
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -44,13 +44,13 @@ config NFT_REJECT_IPV4
 	depends on NF_TABLES_IPV4
 	tristate "nf_tables IPv4 reject support"
 
-config NF_TABLE_ROUTE_IPV4
+config NFT_CHAIN_ROUTE_IPV4
 	depends on NF_TABLES_IPV4
-	tristate "IPv4 nf_tables route table support"
+	tristate "IPv4 nf_tables route chain support"
 
-config NF_TABLE_NAT_IPV4
+config NFT_CHAIN_NAT_IPV4
 	depends on NF_TABLES_IPV4
-	tristate "IPv4 nf_tables nat table support"
+	tristate "IPv4 nf_tables nat chain support"
 
 config IP_NF_IPTABLES
 	tristate "IP tables support (required for filtering/masq/NAT)"
diff --git a/net/ipv4/netfilter/Makefile b/net/ipv4/netfilter/Makefile
index b2f01cd2cd65..91e0bd71a6d3 100644
--- a/net/ipv4/netfilter/Makefile
+++ b/net/ipv4/netfilter/Makefile
@@ -29,8 +29,8 @@ obj-$(CONFIG_NF_NAT_PROTO_GRE) += nf_nat_proto_gre.o
 
 obj-$(CONFIG_NF_TABLES_IPV4) += nf_tables_ipv4.o
 obj-$(CONFIG_NFT_REJECT_IPV4) += nft_reject_ipv4.o
-obj-$(CONFIG_NF_TABLE_ROUTE_IPV4) += nf_table_route_ipv4.o
-obj-$(CONFIG_NF_TABLE_NAT_IPV4) += nf_table_nat_ipv4.o
+obj-$(CONFIG_NFT_CHAIN_ROUTE_IPV4) += nft_chain_route_ipv4.o
+obj-$(CONFIG_NFT_CHAIN_NAT_IPV4) += nft_chain_nat_ipv4.o
 
 # generic IP tables 
 obj-$(CONFIG_IP_NF_IPTABLES) += ip_tables.o
diff --git a/net/ipv4/netfilter/nf_table_nat_ipv4.c b/net/ipv4/netfilter/nf_table_nat_ipv4.c
deleted file mode 100644
index 2ecce39077a3..000000000000
--- a/net/ipv4/netfilter/nf_table_nat_ipv4.c
+++ /dev/null
@@ -1,415 +0,0 @@
-/*
- * Copyright (c) 2008-2009 Patrick McHardy <kaber@trash.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Development of this code funded by Astaro AG (http://www.astaro.com/)
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/skbuff.h>
-#include <linux/ip.h>
-#include <linux/netlink.h>
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/netfilter/nfnetlink.h>
-#include <linux/netfilter/nf_tables.h>
-#include <net/netfilter/nf_conntrack.h>
-#include <net/netfilter/nf_nat.h>
-#include <net/netfilter/nf_nat_core.h>
-#include <net/netfilter/nf_tables.h>
-#include <net/netfilter/nf_nat_l3proto.h>
-#include <net/ip.h>
-
-struct nft_nat {
-	enum nft_registers	sreg_addr_min:8;
-	enum nft_registers	sreg_addr_max:8;
-	enum nft_registers	sreg_proto_min:8;
-	enum nft_registers	sreg_proto_max:8;
-	enum nf_nat_manip_type	type;
-};
-
-static void nft_nat_eval(const struct nft_expr *expr,
-			 struct nft_data data[NFT_REG_MAX + 1],
-			 const struct nft_pktinfo *pkt)
-{
-	const struct nft_nat *priv = nft_expr_priv(expr);
-	enum ip_conntrack_info ctinfo;
-	struct nf_conn *ct = nf_ct_get(pkt->skb, &ctinfo);
-	struct nf_nat_range range;
-
-	memset(&range, 0, sizeof(range));
-	if (priv->sreg_addr_min) {
-		range.min_addr.ip = data[priv->sreg_addr_min].data[0];
-		range.max_addr.ip = data[priv->sreg_addr_max].data[0];
-		range.flags |= NF_NAT_RANGE_MAP_IPS;
-	}
-
-	if (priv->sreg_proto_min) {
-		range.min_proto.all = data[priv->sreg_proto_min].data[0];
-		range.max_proto.all = data[priv->sreg_proto_max].data[0];
-		range.flags |= NF_NAT_RANGE_PROTO_SPECIFIED;
-	}
-
-	data[NFT_REG_VERDICT].verdict =
-		nf_nat_setup_info(ct, &range, priv->type);
-}
-
-static const struct nla_policy nft_nat_policy[NFTA_NAT_MAX + 1] = {
-	[NFTA_NAT_ADDR_MIN]	= { .type = NLA_U32 },
-	[NFTA_NAT_ADDR_MAX]	= { .type = NLA_U32 },
-	[NFTA_NAT_PROTO_MIN]	= { .type = NLA_U32 },
-	[NFTA_NAT_PROTO_MAX]	= { .type = NLA_U32 },
-	[NFTA_NAT_TYPE]		= { .type = NLA_U32 },
-};
-
-static int nft_nat_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
-			const struct nlattr * const tb[])
-{
-	struct nft_nat *priv = nft_expr_priv(expr);
-	int err;
-
-	if (tb[NFTA_NAT_TYPE] == NULL)
-		return -EINVAL;
-
-	switch (ntohl(nla_get_be32(tb[NFTA_NAT_TYPE]))) {
-	case NFT_NAT_SNAT:
-		priv->type = NF_NAT_MANIP_SRC;
-		break;
-	case NFT_NAT_DNAT:
-		priv->type = NF_NAT_MANIP_DST;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	if (tb[NFTA_NAT_ADDR_MIN]) {
-		priv->sreg_addr_min = ntohl(nla_get_be32(tb[NFTA_NAT_ADDR_MIN]));
-		err = nft_validate_input_register(priv->sreg_addr_min);
-		if (err < 0)
-			return err;
-	}
-
-	if (tb[NFTA_NAT_ADDR_MAX]) {
-		priv->sreg_addr_max = ntohl(nla_get_be32(tb[NFTA_NAT_ADDR_MAX]));
-		err = nft_validate_input_register(priv->sreg_addr_max);
-		if (err < 0)
-			return err;
-	} else
-		priv->sreg_addr_max = priv->sreg_addr_min;
-
-	if (tb[NFTA_NAT_PROTO_MIN]) {
-		priv->sreg_proto_min = ntohl(nla_get_be32(tb[NFTA_NAT_PROTO_MIN]));
-		err = nft_validate_input_register(priv->sreg_proto_min);
-		if (err < 0)
-			return err;
-	}
-
-	if (tb[NFTA_NAT_PROTO_MAX]) {
-		priv->sreg_proto_max = ntohl(nla_get_be32(tb[NFTA_NAT_PROTO_MAX]));
-		err = nft_validate_input_register(priv->sreg_proto_max);
-		if (err < 0)
-			return err;
-	} else
-		priv->sreg_proto_max = priv->sreg_proto_min;
-
-	return 0;
-}
-
-static int nft_nat_dump(struct sk_buff *skb, const struct nft_expr *expr)
-{
-	const struct nft_nat *priv = nft_expr_priv(expr);
-
-	switch (priv->type) {
-	case NF_NAT_MANIP_SRC:
-		if (nla_put_be32(skb, NFTA_NAT_TYPE, htonl(NFT_NAT_SNAT)))
-			goto nla_put_failure;
-		break;
-	case NF_NAT_MANIP_DST:
-		if (nla_put_be32(skb, NFTA_NAT_TYPE, htonl(NFT_NAT_DNAT)))
-			goto nla_put_failure;
-		break;
-	}
-
-	if (nla_put_be32(skb, NFTA_NAT_ADDR_MIN, htonl(priv->sreg_addr_min)))
-		goto nla_put_failure;
-	if (nla_put_be32(skb, NFTA_NAT_ADDR_MAX, htonl(priv->sreg_addr_max)))
-		goto nla_put_failure;
-	if (nla_put_be32(skb, NFTA_NAT_PROTO_MIN, htonl(priv->sreg_proto_min)))
-		goto nla_put_failure;
-	if (nla_put_be32(skb, NFTA_NAT_PROTO_MAX, htonl(priv->sreg_proto_max)))
-		goto nla_put_failure;
-	return 0;
-
-nla_put_failure:
-	return -1;
-}
-
-static struct nft_expr_type nft_nat_type;
-static const struct nft_expr_ops nft_nat_ops = {
-	.type		= &nft_nat_type,
-	.size		= NFT_EXPR_SIZE(sizeof(struct nft_nat)),
-	.eval		= nft_nat_eval,
-	.init		= nft_nat_init,
-	.dump		= nft_nat_dump,
-};
-
-static struct nft_expr_type nft_nat_type __read_mostly = {
-	.name		= "nat",
-	.ops		= &nft_nat_ops,
-	.policy		= nft_nat_policy,
-	.maxattr	= NFTA_NAT_MAX,
-	.owner		= THIS_MODULE,
-};
-
-/*
- * NAT table
- */
-
-static unsigned int nf_nat_fn(const struct nf_hook_ops *ops,
-			      struct sk_buff *skb,
-			      const struct net_device *in,
-			      const struct net_device *out,
-			      int (*okfn)(struct sk_buff *))
-{
-	enum ip_conntrack_info ctinfo;
-	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
-	struct nf_conn_nat *nat;
-	enum nf_nat_manip_type maniptype = HOOK2MANIP(ops->hooknum);
-	unsigned int ret;
-
-	if (ct == NULL || nf_ct_is_untracked(ct))
-		return NF_ACCEPT;
-
-	NF_CT_ASSERT(!(ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET)));
-
-	nat = nfct_nat(ct);
-	if (nat == NULL) {
-		/* Conntrack module was loaded late, can't add extension. */
-		if (nf_ct_is_confirmed(ct))
-			return NF_ACCEPT;
-		nat = nf_ct_ext_add(ct, NF_CT_EXT_NAT, GFP_ATOMIC);
-		if (nat == NULL)
-			return NF_ACCEPT;
-	}
-
-	switch (ctinfo) {
-	case IP_CT_RELATED:
-	case IP_CT_RELATED + IP_CT_IS_REPLY:
-		if (ip_hdr(skb)->protocol == IPPROTO_ICMP) {
-			if (!nf_nat_icmp_reply_translation(skb, ct, ctinfo,
-							   ops->hooknum))
-				return NF_DROP;
-			else
-				return NF_ACCEPT;
-		}
-		/* Fall through */
-	case IP_CT_NEW:
-		if (nf_nat_initialized(ct, maniptype))
-			break;
-
-		ret = nft_do_chain(ops, skb, in, out, okfn);
-		if (ret != NF_ACCEPT)
-			return ret;
-		if (!nf_nat_initialized(ct, maniptype)) {
-			ret = nf_nat_alloc_null_binding(ct, ops->hooknum);
-			if (ret != NF_ACCEPT)
-				return ret;
-		}
-	default:
-		break;
-	}
-
-	return nf_nat_packet(ct, ctinfo, ops->hooknum, skb);
-}
-
-static unsigned int nf_nat_prerouting(const struct nf_hook_ops *ops,
-				      struct sk_buff *skb,
-				      const struct net_device *in,
-				      const struct net_device *out,
-				      int (*okfn)(struct sk_buff *))
-{
-	__be32 daddr = ip_hdr(skb)->daddr;
-	unsigned int ret;
-
-	ret = nf_nat_fn(ops, skb, in, out, okfn);
-	if (ret != NF_DROP && ret != NF_STOLEN &&
-	    ip_hdr(skb)->daddr != daddr) {
-		skb_dst_drop(skb);
-	}
-	return ret;
-}
-
-static unsigned int nf_nat_postrouting(const struct nf_hook_ops *ops,
-				       struct sk_buff *skb,
-				       const struct net_device *in,
-				       const struct net_device *out,
-				       int (*okfn)(struct sk_buff *))
-{
-	enum ip_conntrack_info ctinfo __maybe_unused;
-	const struct nf_conn *ct __maybe_unused;
-	unsigned int ret;
-
-	ret = nf_nat_fn(ops, skb, in, out, okfn);
-#ifdef CONFIG_XFRM
-	if (ret != NF_DROP && ret != NF_STOLEN &&
-	    (ct = nf_ct_get(skb, &ctinfo)) != NULL) {
-		enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
-
-		if (ct->tuplehash[dir].tuple.src.u3.ip !=
-		    ct->tuplehash[!dir].tuple.dst.u3.ip ||
-		    ct->tuplehash[dir].tuple.src.u.all !=
-		    ct->tuplehash[!dir].tuple.dst.u.all)
-			return nf_xfrm_me_harder(skb, AF_INET) == 0 ?
-								ret : NF_DROP;
-	}
-#endif
-	return ret;
-}
-
-static unsigned int nf_nat_output(const struct nf_hook_ops *ops,
-				  struct sk_buff *skb,
-				  const struct net_device *in,
-				  const struct net_device *out,
-				  int (*okfn)(struct sk_buff *))
-{
-	enum ip_conntrack_info ctinfo;
-	const struct nf_conn *ct;
-	unsigned int ret;
-
-	ret = nf_nat_fn(ops, skb, in, out, okfn);
-	if (ret != NF_DROP && ret != NF_STOLEN &&
-	    (ct = nf_ct_get(skb, &ctinfo)) != NULL) {
-		enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
-
-		if (ct->tuplehash[dir].tuple.dst.u3.ip !=
-		    ct->tuplehash[!dir].tuple.src.u3.ip) {
-			if (ip_route_me_harder(skb, RTN_UNSPEC))
-				ret = NF_DROP;
-		}
-#ifdef CONFIG_XFRM
-		else if (ct->tuplehash[dir].tuple.dst.u.all !=
-			 ct->tuplehash[!dir].tuple.src.u.all)
-			if (nf_xfrm_me_harder(skb, AF_INET))
-				ret = NF_DROP;
-#endif
-	}
-	return ret;
-}
-
-static struct nft_base_chain nf_chain_nat_prerouting __read_mostly = {
-	.chain	= {
-		.name		= "PREROUTING",
-		.rules		= LIST_HEAD_INIT(nf_chain_nat_prerouting.chain.rules),
-		.flags		= NFT_BASE_CHAIN | NFT_CHAIN_BUILTIN,
-	},
-	.ops	= {
-		.hook		= nf_nat_prerouting,
-		.owner		= THIS_MODULE,
-		.pf		= NFPROTO_IPV4,
-		.hooknum	= NF_INET_PRE_ROUTING,
-		.priority	= NF_IP_PRI_NAT_DST,
-		.priv		= &nf_chain_nat_prerouting.chain,
-	},
-};
-
-static struct nft_base_chain nf_chain_nat_postrouting __read_mostly = {
-	.chain	= {
-		.name		= "POSTROUTING",
-		.rules		= LIST_HEAD_INIT(nf_chain_nat_postrouting.chain.rules),
-		.flags		= NFT_BASE_CHAIN | NFT_CHAIN_BUILTIN,
-	},
-	.ops	= {
-		.hook		= nf_nat_postrouting,
-		.owner		= THIS_MODULE,
-		.pf		= NFPROTO_IPV4,
-		.hooknum	= NF_INET_POST_ROUTING,
-		.priority	= NF_IP_PRI_NAT_SRC,
-		.priv		= &nf_chain_nat_postrouting.chain,
-	},
-};
-
-static struct nft_base_chain nf_chain_nat_output __read_mostly = {
-	.chain	= {
-		.name		= "OUTPUT",
-		.rules		= LIST_HEAD_INIT(nf_chain_nat_output.chain.rules),
-		.flags		= NFT_BASE_CHAIN | NFT_CHAIN_BUILTIN,
-	},
-	.ops	= {
-		.hook		= nf_nat_output,
-		.owner		= THIS_MODULE,
-		.pf		= NFPROTO_IPV4,
-		.hooknum	= NF_INET_LOCAL_OUT,
-		.priority	= NF_IP_PRI_NAT_DST,
-		.priv		= &nf_chain_nat_output.chain,
-	},
-};
-
-static struct nft_base_chain nf_chain_nat_input __read_mostly = {
-	.chain	= {
-		.name		= "INPUT",
-		.rules		= LIST_HEAD_INIT(nf_chain_nat_input.chain.rules),
-		.flags		= NFT_BASE_CHAIN | NFT_CHAIN_BUILTIN,
-	},
-	.ops	= {
-		.hook		= nf_nat_fn,
-		.owner		= THIS_MODULE,
-		.pf		= NFPROTO_IPV4,
-		.hooknum	= NF_INET_LOCAL_IN,
-		.priority	= NF_IP_PRI_NAT_SRC,
-		.priv		= &nf_chain_nat_input.chain,
-	},
-};
-
-
-static struct nft_table nf_table_nat_ipv4 __read_mostly = {
-	.name	= "nat",
-	.chains	= LIST_HEAD_INIT(nf_table_nat_ipv4.chains),
-};
-
-static int __init nf_table_nat_init(void)
-{
-	int err;
-
-	list_add_tail(&nf_chain_nat_prerouting.chain.list,
-		      &nf_table_nat_ipv4.chains);
-	list_add_tail(&nf_chain_nat_postrouting.chain.list,
-		      &nf_table_nat_ipv4.chains);
-	list_add_tail(&nf_chain_nat_output.chain.list,
-		      &nf_table_nat_ipv4.chains);
-	list_add_tail(&nf_chain_nat_input.chain.list,
-		      &nf_table_nat_ipv4.chains);
-
-	err = nft_register_table(&nf_table_nat_ipv4, NFPROTO_IPV4);
-	if (err < 0)
-		goto err1;
-
-	err = nft_register_expr(&nft_nat_type);
-	if (err < 0)
-		goto err2;
-
-	return 0;
-
-err2:
-	nft_unregister_table(&nf_table_nat_ipv4, NFPROTO_IPV4);
-err1:
-	return err;
-}
-
-static void __exit nf_table_nat_exit(void)
-{
-	nft_unregister_expr(&nft_nat_type);
-	nft_unregister_table(&nf_table_nat_ipv4, AF_INET);
-}
-
-module_init(nf_table_nat_init);
-module_exit(nf_table_nat_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
-MODULE_ALIAS_NFT_TABLE(AF_INET, "nat");
-MODULE_ALIAS_NFT_EXPR("nat");
diff --git a/net/ipv4/netfilter/nf_table_route_ipv4.c b/net/ipv4/netfilter/nf_table_route_ipv4.c
deleted file mode 100644
index 4f257a1ed661..000000000000
--- a/net/ipv4/netfilter/nf_table_route_ipv4.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/skbuff.h>
-#include <linux/netlink.h>
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4.h>
-#include <linux/netfilter/nfnetlink.h>
-#include <linux/netfilter/nf_tables.h>
-#include <net/netfilter/nf_tables.h>
-#include <net/route.h>
-#include <net/ip.h>
-
-static unsigned int nf_route_table_hook(const struct nf_hook_ops *ops,
-					struct sk_buff *skb,
-					const struct net_device *in,
-					const struct net_device *out,
-					int (*okfn)(struct sk_buff *))
-{
-	unsigned int ret;
-	u32 mark;
-	__be32 saddr, daddr;
-	u_int8_t tos;
-	const struct iphdr *iph;
-
-	/* root is playing with raw sockets. */
-	if (skb->len < sizeof(struct iphdr) ||
-	    ip_hdrlen(skb) < sizeof(struct iphdr))
-		return NF_ACCEPT;
-
-	mark = skb->mark;
-	iph = ip_hdr(skb);
-	saddr = iph->saddr;
-	daddr = iph->daddr;
-	tos = iph->tos;
-
-	ret = nft_do_chain(ops, skb, in, out, okfn);
-	if (ret != NF_DROP && ret != NF_QUEUE) {
-		iph = ip_hdr(skb);
-
-		if (iph->saddr != saddr ||
-		    iph->daddr != daddr ||
-		    skb->mark != mark ||
-		    iph->tos != tos)
-			if (ip_route_me_harder(skb, RTN_UNSPEC))
-				ret = NF_DROP;
-	}
-	return ret;
-}
-
-static struct nft_base_chain nf_chain_route_output __read_mostly = {
-	.chain	= {
-		.name		= "OUTPUT",
-		.rules		= LIST_HEAD_INIT(nf_chain_route_output.chain.rules),
-		.flags		= NFT_BASE_CHAIN | NFT_CHAIN_BUILTIN,
-	},
-	.ops	= {
-		.hook		= nf_route_table_hook,
-		.owner		= THIS_MODULE,
-		.pf		= NFPROTO_IPV4,
-		.hooknum	= NF_INET_LOCAL_OUT,
-		.priority	= NF_IP_PRI_MANGLE,
-		.priv		= &nf_chain_route_output.chain,
-	},
-};
-
-static struct nft_table nf_table_route_ipv4 __read_mostly = {
-	.name	= "route",
-	.chains	= LIST_HEAD_INIT(nf_table_route_ipv4.chains),
-};
-
-static int __init nf_table_route_init(void)
-{
-	list_add_tail(&nf_chain_route_output.chain.list,
-		      &nf_table_route_ipv4.chains);
-	return nft_register_table(&nf_table_route_ipv4, NFPROTO_IPV4);
-}
-
-static void __exit nf_table_route_exit(void)
-{
-	nft_unregister_table(&nf_table_route_ipv4, NFPROTO_IPV4);
-}
-
-module_init(nf_table_route_init);
-module_exit(nf_table_route_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
-MODULE_ALIAS_NFT_TABLE(AF_INET, "route");
diff --git a/net/ipv4/netfilter/nf_tables_ipv4.c b/net/ipv4/netfilter/nf_tables_ipv4.c
index 63d0a3bf53d3..23525c4c0192 100644
--- a/net/ipv4/netfilter/nf_tables_ipv4.c
+++ b/net/ipv4/netfilter/nf_tables_ipv4.c
@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2012-2013 Pablo Neira Ayuso <pablo@netfilter.org>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -41,14 +42,34 @@ static struct nft_af_info nft_af_ipv4 __read_mostly = {
 	},
 };
 
+static struct nf_chain_type filter_ipv4 = {
+	.family		= NFPROTO_IPV4,
+	.name		= "filter",
+	.type		= NFT_CHAIN_T_DEFAULT,
+	.hook_mask	= (1 << NF_INET_LOCAL_IN) |
+			  (1 << NF_INET_LOCAL_OUT) |
+			  (1 << NF_INET_FORWARD) |
+			  (1 << NF_INET_PRE_ROUTING) |
+			  (1 << NF_INET_POST_ROUTING),
+	.fn		= {
+		[NF_INET_LOCAL_IN]	= nft_do_chain,
+		[NF_INET_LOCAL_OUT]	= nft_do_chain,
+		[NF_INET_FORWARD]	= nft_do_chain,
+		[NF_INET_PRE_ROUTING]	= nft_do_chain,
+		[NF_INET_POST_ROUTING]	= nft_do_chain,
+	},
+};
+
 static int __init nf_tables_ipv4_init(void)
 {
+	nft_register_chain_type(&filter_ipv4);
 	return nft_register_afinfo(&nft_af_ipv4);
 }
 
 static void __exit nf_tables_ipv4_exit(void)
 {
 	nft_unregister_afinfo(&nft_af_ipv4);
+	nft_unregister_chain_type(&filter_ipv4);
 }
 
 module_init(nf_tables_ipv4_init);
diff --git a/net/ipv4/netfilter/nft_chain_nat_ipv4.c b/net/ipv4/netfilter/nft_chain_nat_ipv4.c
new file mode 100644
index 000000000000..cd286306be85
--- /dev/null
+++ b/net/ipv4/netfilter/nft_chain_nat_ipv4.c
@@ -0,0 +1,353 @@
+/*
+ * Copyright (c) 2008-2009 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2012 Pablo Neira Ayuso <pablo@netfilter.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/skbuff.h>
+#include <linux/ip.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter_ipv4.h>
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_conntrack.h>
+#include <net/netfilter/nf_nat.h>
+#include <net/netfilter/nf_nat_core.h>
+#include <net/netfilter/nf_tables.h>
+#include <net/netfilter/nf_nat_l3proto.h>
+#include <net/ip.h>
+
+struct nft_nat {
+	enum nft_registers	sreg_addr_min:8;
+	enum nft_registers	sreg_addr_max:8;
+	enum nft_registers	sreg_proto_min:8;
+	enum nft_registers	sreg_proto_max:8;
+	enum nf_nat_manip_type	type;
+};
+
+static void nft_nat_eval(const struct nft_expr *expr,
+			 struct nft_data data[NFT_REG_MAX + 1],
+			 const struct nft_pktinfo *pkt)
+{
+	const struct nft_nat *priv = nft_expr_priv(expr);
+	enum ip_conntrack_info ctinfo;
+	struct nf_conn *ct = nf_ct_get(pkt->skb, &ctinfo);
+	struct nf_nat_range range;
+
+	memset(&range, 0, sizeof(range));
+	if (priv->sreg_addr_min) {
+		range.min_addr.ip = data[priv->sreg_addr_min].data[0];
+		range.max_addr.ip = data[priv->sreg_addr_max].data[0];
+		range.flags |= NF_NAT_RANGE_MAP_IPS;
+	}
+
+	if (priv->sreg_proto_min) {
+		range.min_proto.all = data[priv->sreg_proto_min].data[0];
+		range.max_proto.all = data[priv->sreg_proto_max].data[0];
+		range.flags |= NF_NAT_RANGE_PROTO_SPECIFIED;
+	}
+
+	data[NFT_REG_VERDICT].verdict =
+		nf_nat_setup_info(ct, &range, priv->type);
+}
+
+static const struct nla_policy nft_nat_policy[NFTA_NAT_MAX + 1] = {
+	[NFTA_NAT_ADDR_MIN]	= { .type = NLA_U32 },
+	[NFTA_NAT_ADDR_MAX]	= { .type = NLA_U32 },
+	[NFTA_NAT_PROTO_MIN]	= { .type = NLA_U32 },
+	[NFTA_NAT_PROTO_MAX]	= { .type = NLA_U32 },
+	[NFTA_NAT_TYPE]		= { .type = NLA_U32 },
+};
+
+static int nft_nat_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
+			const struct nlattr * const tb[])
+{
+	struct nft_nat *priv = nft_expr_priv(expr);
+	int err;
+
+	if (tb[NFTA_NAT_TYPE] == NULL)
+		return -EINVAL;
+
+	switch (ntohl(nla_get_be32(tb[NFTA_NAT_TYPE]))) {
+	case NFT_NAT_SNAT:
+		priv->type = NF_NAT_MANIP_SRC;
+		break;
+	case NFT_NAT_DNAT:
+		priv->type = NF_NAT_MANIP_DST;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (tb[NFTA_NAT_ADDR_MIN]) {
+		priv->sreg_addr_min = ntohl(nla_get_be32(tb[NFTA_NAT_ADDR_MIN]));
+		err = nft_validate_input_register(priv->sreg_addr_min);
+		if (err < 0)
+			return err;
+	}
+
+	if (tb[NFTA_NAT_ADDR_MAX]) {
+		priv->sreg_addr_max = ntohl(nla_get_be32(tb[NFTA_NAT_ADDR_MAX]));
+		err = nft_validate_input_register(priv->sreg_addr_max);
+		if (err < 0)
+			return err;
+	} else
+		priv->sreg_addr_max = priv->sreg_addr_min;
+
+	if (tb[NFTA_NAT_PROTO_MIN]) {
+		priv->sreg_proto_min = ntohl(nla_get_be32(tb[NFTA_NAT_PROTO_MIN]));
+		err = nft_validate_input_register(priv->sreg_proto_min);
+		if (err < 0)
+			return err;
+	}
+
+	if (tb[NFTA_NAT_PROTO_MAX]) {
+		priv->sreg_proto_max = ntohl(nla_get_be32(tb[NFTA_NAT_PROTO_MAX]));
+		err = nft_validate_input_register(priv->sreg_proto_max);
+		if (err < 0)
+			return err;
+	} else
+		priv->sreg_proto_max = priv->sreg_proto_min;
+
+	return 0;
+}
+
+static int nft_nat_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	const struct nft_nat *priv = nft_expr_priv(expr);
+
+	switch (priv->type) {
+	case NF_NAT_MANIP_SRC:
+		if (nla_put_be32(skb, NFTA_NAT_TYPE, htonl(NFT_NAT_SNAT)))
+			goto nla_put_failure;
+		break;
+	case NF_NAT_MANIP_DST:
+		if (nla_put_be32(skb, NFTA_NAT_TYPE, htonl(NFT_NAT_DNAT)))
+			goto nla_put_failure;
+		break;
+	}
+
+	if (nla_put_be32(skb, NFTA_NAT_ADDR_MIN, htonl(priv->sreg_addr_min)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_NAT_ADDR_MAX, htonl(priv->sreg_addr_max)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_NAT_PROTO_MIN, htonl(priv->sreg_proto_min)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb, NFTA_NAT_PROTO_MAX, htonl(priv->sreg_proto_max)))
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static struct nft_expr_type nft_nat_type;
+static const struct nft_expr_ops nft_nat_ops = {
+	.type		= &nft_nat_type,
+	.size		= NFT_EXPR_SIZE(sizeof(struct nft_nat)),
+	.eval		= nft_nat_eval,
+	.init		= nft_nat_init,
+	.dump		= nft_nat_dump,
+};
+
+static struct nft_expr_type nft_nat_type __read_mostly = {
+	.name		= "nat",
+	.ops		= &nft_nat_ops,
+	.policy		= nft_nat_policy,
+	.maxattr	= NFTA_NAT_MAX,
+	.owner		= THIS_MODULE,
+};
+
+/*
+ * NAT chains
+ */
+
+static unsigned int nf_nat_fn(const struct nf_hook_ops *ops,
+			      struct sk_buff *skb,
+			      const struct net_device *in,
+			      const struct net_device *out,
+			      int (*okfn)(struct sk_buff *))
+{
+	enum ip_conntrack_info ctinfo;
+	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
+	struct nf_conn_nat *nat;
+	enum nf_nat_manip_type maniptype = HOOK2MANIP(ops->hooknum);
+	unsigned int ret;
+
+	if (ct == NULL || nf_ct_is_untracked(ct))
+		return NF_ACCEPT;
+
+	NF_CT_ASSERT(!(ip_hdr(skb)->frag_off & htons(IP_MF | IP_OFFSET)));
+
+	nat = nfct_nat(ct);
+	if (nat == NULL) {
+		/* Conntrack module was loaded late, can't add extension. */
+		if (nf_ct_is_confirmed(ct))
+			return NF_ACCEPT;
+		nat = nf_ct_ext_add(ct, NF_CT_EXT_NAT, GFP_ATOMIC);
+		if (nat == NULL)
+			return NF_ACCEPT;
+	}
+
+	switch (ctinfo) {
+	case IP_CT_RELATED:
+	case IP_CT_RELATED + IP_CT_IS_REPLY:
+		if (ip_hdr(skb)->protocol == IPPROTO_ICMP) {
+			if (!nf_nat_icmp_reply_translation(skb, ct, ctinfo,
+							   ops->hooknum))
+				return NF_DROP;
+			else
+				return NF_ACCEPT;
+		}
+		/* Fall through */
+	case IP_CT_NEW:
+		if (nf_nat_initialized(ct, maniptype))
+			break;
+
+		ret = nft_do_chain(ops, skb, in, out, okfn);
+		if (ret != NF_ACCEPT)
+			return ret;
+		if (!nf_nat_initialized(ct, maniptype)) {
+			ret = nf_nat_alloc_null_binding(ct, ops->hooknum);
+			if (ret != NF_ACCEPT)
+				return ret;
+		}
+	default:
+		break;
+	}
+
+	return nf_nat_packet(ct, ctinfo, ops->hooknum, skb);
+}
+
+static unsigned int nf_nat_prerouting(const struct nf_hook_ops *ops,
+				      struct sk_buff *skb,
+				      const struct net_device *in,
+				      const struct net_device *out,
+				      int (*okfn)(struct sk_buff *))
+{
+	__be32 daddr = ip_hdr(skb)->daddr;
+	unsigned int ret;
+
+	ret = nf_nat_fn(ops, skb, in, out, okfn);
+	if (ret != NF_DROP && ret != NF_STOLEN &&
+	    ip_hdr(skb)->daddr != daddr) {
+		skb_dst_drop(skb);
+	}
+	return ret;
+}
+
+static unsigned int nf_nat_postrouting(const struct nf_hook_ops *ops,
+				       struct sk_buff *skb,
+				       const struct net_device *in,
+				       const struct net_device *out,
+				       int (*okfn)(struct sk_buff *))
+{
+	enum ip_conntrack_info ctinfo __maybe_unused;
+	const struct nf_conn *ct __maybe_unused;
+	unsigned int ret;
+
+	ret = nf_nat_fn(ops, skb, in, out, okfn);
+#ifdef CONFIG_XFRM
+	if (ret != NF_DROP && ret != NF_STOLEN &&
+	    (ct = nf_ct_get(skb, &ctinfo)) != NULL) {
+		enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
+
+		if (ct->tuplehash[dir].tuple.src.u3.ip !=
+		    ct->tuplehash[!dir].tuple.dst.u3.ip ||
+		    ct->tuplehash[dir].tuple.src.u.all !=
+		    ct->tuplehash[!dir].tuple.dst.u.all)
+			return nf_xfrm_me_harder(skb, AF_INET) == 0 ?
+								ret : NF_DROP;
+	}
+#endif
+	return ret;
+}
+
+static unsigned int nf_nat_output(const struct nf_hook_ops *ops,
+				  struct sk_buff *skb,
+				  const struct net_device *in,
+				  const struct net_device *out,
+				  int (*okfn)(struct sk_buff *))
+{
+	enum ip_conntrack_info ctinfo;
+	const struct nf_conn *ct;
+	unsigned int ret;
+
+	ret = nf_nat_fn(ops, skb, in, out, okfn);
+	if (ret != NF_DROP && ret != NF_STOLEN &&
+	    (ct = nf_ct_get(skb, &ctinfo)) != NULL) {
+		enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
+
+		if (ct->tuplehash[dir].tuple.dst.u3.ip !=
+		    ct->tuplehash[!dir].tuple.src.u3.ip) {
+			if (ip_route_me_harder(skb, RTN_UNSPEC))
+				ret = NF_DROP;
+		}
+#ifdef CONFIG_XFRM
+		else if (ct->tuplehash[dir].tuple.dst.u.all !=
+			 ct->tuplehash[!dir].tuple.src.u.all)
+			if (nf_xfrm_me_harder(skb, AF_INET))
+				ret = NF_DROP;
+#endif
+	}
+	return ret;
+}
+
+struct nf_chain_type nft_chain_nat_ipv4 = {
+	.family		= NFPROTO_IPV4,
+	.name		= "nat",
+	.type		= NFT_CHAIN_T_NAT,
+	.hook_mask	= (1 << NF_INET_PRE_ROUTING) |
+			  (1 << NF_INET_POST_ROUTING) |
+			  (1 << NF_INET_LOCAL_OUT) |
+			  (1 << NF_INET_LOCAL_IN),
+	.fn		= {
+		[NF_INET_PRE_ROUTING]	= nf_nat_prerouting,
+		[NF_INET_POST_ROUTING]	= nf_nat_postrouting,
+		[NF_INET_LOCAL_OUT]	= nf_nat_output,
+		[NF_INET_LOCAL_IN]	= nf_nat_fn,
+	},
+	.me		= THIS_MODULE,
+};
+
+static int __init nft_chain_nat_init(void)
+{
+	int err;
+
+	err = nft_register_chain_type(&nft_chain_nat_ipv4);
+	if (err < 0)
+		return err;
+
+	err = nft_register_expr(&nft_nat_type);
+	if (err < 0)
+		goto err;
+
+	return 0;
+
+err:
+	nft_unregister_chain_type(&nft_chain_nat_ipv4);
+	return err;
+}
+
+static void __exit nft_chain_nat_exit(void)
+{
+	nft_unregister_expr(&nft_nat_type);
+	nft_unregister_chain_type(&nft_chain_nat_ipv4);
+}
+
+module_init(nft_chain_nat_init);
+module_exit(nft_chain_nat_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_CHAIN(AF_INET, "nat");
+MODULE_ALIAS_NFT_EXPR("nat");
diff --git a/net/ipv4/netfilter/nft_chain_route_ipv4.c b/net/ipv4/netfilter/nft_chain_route_ipv4.c
new file mode 100644
index 000000000000..6b84e097b8fc
--- /dev/null
+++ b/net/ipv4/netfilter/nft_chain_route_ipv4.c
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2012 Pablo Neira Ayuso <pablo@netfilter.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/skbuff.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter_ipv4.h>
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables.h>
+#include <net/route.h>
+#include <net/ip.h>
+
+static unsigned int nf_route_table_hook(const struct nf_hook_ops *ops,
+					struct sk_buff *skb,
+					const struct net_device *in,
+					const struct net_device *out,
+					int (*okfn)(struct sk_buff *))
+{
+	unsigned int ret;
+	u32 mark;
+	__be32 saddr, daddr;
+	u_int8_t tos;
+	const struct iphdr *iph;
+
+	/* root is playing with raw sockets. */
+	if (skb->len < sizeof(struct iphdr) ||
+	    ip_hdrlen(skb) < sizeof(struct iphdr))
+		return NF_ACCEPT;
+
+	mark = skb->mark;
+	iph = ip_hdr(skb);
+	saddr = iph->saddr;
+	daddr = iph->daddr;
+	tos = iph->tos;
+
+	ret = nft_do_chain(ops, skb, in, out, okfn);
+	if (ret != NF_DROP && ret != NF_QUEUE) {
+		iph = ip_hdr(skb);
+
+		if (iph->saddr != saddr ||
+		    iph->daddr != daddr ||
+		    skb->mark != mark ||
+		    iph->tos != tos)
+			if (ip_route_me_harder(skb, RTN_UNSPEC))
+				ret = NF_DROP;
+	}
+	return ret;
+}
+
+static struct nf_chain_type nft_chain_route_ipv4 = {
+	.family		= NFPROTO_IPV4,
+	.name		= "route",
+	.type		= NFT_CHAIN_T_ROUTE,
+	.hook_mask	= (1 << NF_INET_LOCAL_OUT),
+	.fn		= {
+		[NF_INET_LOCAL_OUT]	= nf_route_table_hook,
+	},
+	.me		= THIS_MODULE,
+};
+
+static int __init nft_chain_route_init(void)
+{
+	return nft_register_chain_type(&nft_chain_route_ipv4);
+}
+
+static void __exit nft_chain_route_exit(void)
+{
+	nft_unregister_chain_type(&nft_chain_route_ipv4);
+}
+
+module_init(nft_chain_route_init);
+module_exit(nft_chain_route_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_CHAIN(AF_INET, "route");
diff --git a/net/ipv6/netfilter/Kconfig b/net/ipv6/netfilter/Kconfig
index 5677e38eeca3..23833064b7b5 100644
--- a/net/ipv6/netfilter/Kconfig
+++ b/net/ipv6/netfilter/Kconfig
@@ -29,9 +29,9 @@ config NF_TABLES_IPV6
 	depends on NF_TABLES
 	tristate "IPv6 nf_tables support"
 
-config NF_TABLE_ROUTE_IPV6
+config NFT_CHAIN_ROUTE_IPV6
 	depends on NF_TABLES_IPV6
-	tristate "IPv6 nf_tables route table support"
+	tristate "IPv6 nf_tables route chain support"
 
 config IP6_NF_IPTABLES
 	tristate "IP6 tables support (required for filtering)"
diff --git a/net/ipv6/netfilter/Makefile b/net/ipv6/netfilter/Makefile
index 956af4492d10..be4913aa524d 100644
--- a/net/ipv6/netfilter/Makefile
+++ b/net/ipv6/netfilter/Makefile
@@ -25,7 +25,7 @@ obj-$(CONFIG_NF_DEFRAG_IPV6) += nf_defrag_ipv6.o
 
 # nf_tables
 obj-$(CONFIG_NF_TABLES_IPV6) += nf_tables_ipv6.o
-obj-$(CONFIG_NF_TABLE_ROUTE_IPV6) += nf_table_route_ipv6.o
+obj-$(CONFIG_NFT_CHAIN_ROUTE_IPV6) += nft_chain_route_ipv6.o
 
 # matches
 obj-$(CONFIG_IP6_NF_MATCH_AH) += ip6t_ah.o
diff --git a/net/ipv6/netfilter/nf_table_route_ipv6.c b/net/ipv6/netfilter/nf_table_route_ipv6.c
deleted file mode 100644
index 48ac65c7b398..000000000000
--- a/net/ipv6/netfilter/nf_table_route_ipv6.c
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Development of this code funded by Astaro AG (http://www.astaro.com/)
- */
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/list.h>
-#include <linux/skbuff.h>
-#include <linux/netlink.h>
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv6.h>
-#include <linux/netfilter/nfnetlink.h>
-#include <linux/netfilter/nf_tables.h>
-#include <net/netfilter/nf_tables.h>
-#include <net/route.h>
-
-static unsigned int nf_route_table_hook(const struct nf_hook_ops *ops,
-					struct sk_buff *skb,
-					const struct net_device *in,
-					const struct net_device *out,
-					int (*okfn)(struct sk_buff *))
-{
-	unsigned int ret;
-	struct in6_addr saddr, daddr;
-	u_int8_t hop_limit;
-	u32 mark, flowlabel;
-
-	/* save source/dest address, mark, hoplimit, flowlabel, priority */
-	memcpy(&saddr, &ipv6_hdr(skb)->saddr, sizeof(saddr));
-	memcpy(&daddr, &ipv6_hdr(skb)->daddr, sizeof(daddr));
-	mark = skb->mark;
-	hop_limit = ipv6_hdr(skb)->hop_limit;
-
-	/* flowlabel and prio (includes version, which shouldn't change either */
-	flowlabel = *((u32 *)ipv6_hdr(skb));
-
-	ret = nft_do_chain(ops, skb, in, out, okfn);
-	if (ret != NF_DROP && ret != NF_QUEUE &&
-	    (memcmp(&ipv6_hdr(skb)->saddr, &saddr, sizeof(saddr)) ||
-	     memcmp(&ipv6_hdr(skb)->daddr, &daddr, sizeof(daddr)) ||
-	     skb->mark != mark ||
-	     ipv6_hdr(skb)->hop_limit != hop_limit ||
-	     flowlabel != *((u_int32_t *)ipv6_hdr(skb))))
-		return ip6_route_me_harder(skb) == 0 ? ret : NF_DROP;
-
-	return ret;
-}
-
-static struct nft_base_chain nf_chain_route_output __read_mostly = {
-	.chain	= {
-		.name		= "OUTPUT",
-		.rules		= LIST_HEAD_INIT(nf_chain_route_output.chain.rules),
-		.flags		= NFT_BASE_CHAIN | NFT_CHAIN_BUILTIN,
-	},
-	.ops	= {
-		.hook		= nf_route_table_hook,
-		.owner		= THIS_MODULE,
-		.pf		= NFPROTO_IPV6,
-		.hooknum	= NF_INET_LOCAL_OUT,
-		.priority	= NF_IP6_PRI_MANGLE,
-		.priv		= &nf_chain_route_output.chain,
-	},
-};
-
-static struct nft_table nf_table_route_ipv6 __read_mostly = {
-	.name	= "route",
-	.chains	= LIST_HEAD_INIT(nf_table_route_ipv6.chains),
-};
-
-static int __init nf_table_route_init(void)
-{
-	list_add_tail(&nf_chain_route_output.chain.list,
-		      &nf_table_route_ipv6.chains);
-	return nft_register_table(&nf_table_route_ipv6, NFPROTO_IPV6);
-}
-
-static void __exit nf_table_route_exit(void)
-{
-	nft_unregister_table(&nf_table_route_ipv6, NFPROTO_IPV6);
-}
-
-module_init(nf_table_route_init);
-module_exit(nf_table_route_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
-MODULE_ALIAS_NFT_TABLE(AF_INET6, "route");
diff --git a/net/ipv6/netfilter/nf_tables_ipv6.c b/net/ipv6/netfilter/nf_tables_ipv6.c
index e0717cea4913..3631d6238e6f 100644
--- a/net/ipv6/netfilter/nf_tables_ipv6.c
+++ b/net/ipv6/netfilter/nf_tables_ipv6.c
@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2012-2013 Pablo Neira Ayuso <pablo@netfilter.org>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -39,14 +40,33 @@ static struct nft_af_info nft_af_ipv6 __read_mostly = {
 	},
 };
 
+static struct nf_chain_type filter_ipv6 = {
+	.family		= NFPROTO_IPV6,
+	.name		= "filter",
+	.type		= NFT_CHAIN_T_DEFAULT,
+	.hook_mask	= (1 << NF_INET_LOCAL_IN) |
+			  (1 << NF_INET_LOCAL_OUT) |
+			  (1 << NF_INET_FORWARD) |
+			  (1 << NF_INET_PRE_ROUTING) |
+			  (1 << NF_INET_POST_ROUTING),
+	.fn		= {
+		[NF_INET_LOCAL_IN]	= nft_do_chain,
+		[NF_INET_LOCAL_OUT]	= nft_do_chain,
+		[NF_INET_FORWARD]	= nft_do_chain,
+		[NF_INET_PRE_ROUTING]	= nft_do_chain,
+		[NF_INET_POST_ROUTING]	= nft_do_chain,
+	},
+};
+
 static int __init nf_tables_ipv6_init(void)
 {
+	nft_register_chain_type(&filter_ipv6);
 	return nft_register_afinfo(&nft_af_ipv6);
 }
-
 static void __exit nf_tables_ipv6_exit(void)
 {
 	nft_unregister_afinfo(&nft_af_ipv6);
+	nft_unregister_chain_type(&filter_ipv6);
 }
 
 module_init(nf_tables_ipv6_init);
diff --git a/net/ipv6/netfilter/nft_chain_route_ipv6.c b/net/ipv6/netfilter/nft_chain_route_ipv6.c
new file mode 100644
index 000000000000..4cdc992fa067
--- /dev/null
+++ b/net/ipv6/netfilter/nft_chain_route_ipv6.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2012 Pablo Neira Ayuso <pablo@netfilter.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/skbuff.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter_ipv6.h>
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables.h>
+#include <net/route.h>
+
+static unsigned int nf_route_table_hook(const struct nf_hook_ops *ops,
+					struct sk_buff *skb,
+					const struct net_device *in,
+					const struct net_device *out,
+					int (*okfn)(struct sk_buff *))
+{
+	unsigned int ret;
+	struct in6_addr saddr, daddr;
+	u_int8_t hop_limit;
+	u32 mark, flowlabel;
+
+	/* save source/dest address, mark, hoplimit, flowlabel, priority */
+	memcpy(&saddr, &ipv6_hdr(skb)->saddr, sizeof(saddr));
+	memcpy(&daddr, &ipv6_hdr(skb)->daddr, sizeof(daddr));
+	mark = skb->mark;
+	hop_limit = ipv6_hdr(skb)->hop_limit;
+
+	/* flowlabel and prio (includes version, which shouldn't change either */
+	flowlabel = *((u32 *)ipv6_hdr(skb));
+
+	ret = nft_do_chain(ops, skb, in, out, okfn);
+	if (ret != NF_DROP && ret != NF_QUEUE &&
+	    (memcmp(&ipv6_hdr(skb)->saddr, &saddr, sizeof(saddr)) ||
+	     memcmp(&ipv6_hdr(skb)->daddr, &daddr, sizeof(daddr)) ||
+	     skb->mark != mark ||
+	     ipv6_hdr(skb)->hop_limit != hop_limit ||
+	     flowlabel != *((u_int32_t *)ipv6_hdr(skb))))
+		return ip6_route_me_harder(skb) == 0 ? ret : NF_DROP;
+
+	return ret;
+}
+
+static struct nf_chain_type nft_chain_route_ipv6 = {
+	.family		= NFPROTO_IPV6,
+	.name		= "route",
+	.type		= NFT_CHAIN_T_ROUTE,
+	.hook_mask	= (1 << NF_INET_LOCAL_OUT),
+	.fn		= {
+                [NF_INET_LOCAL_OUT]	= nf_route_table_hook,
+        },
+        .me		= THIS_MODULE,
+};
+
+static int __init nft_chain_route_init(void)
+{
+	return nft_register_chain_type(&nft_chain_route_ipv6);
+}
+
+static void __exit nft_chain_route_exit(void)
+{
+	nft_unregister_chain_type(&nft_chain_route_ipv6);
+}
+
+module_init(nft_chain_route_init);
+module_exit(nft_chain_route_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_CHAIN(AF_INET6, "route");
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 6dac9a3c9c40..9c2d8d5af843 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -104,8 +104,7 @@ static struct nft_table *nft_table_lookup(const struct nft_af_info *afi,
 }
 
 static struct nft_table *nf_tables_table_lookup(const struct nft_af_info *afi,
-						const struct nlattr *nla,
-						bool autoload)
+						const struct nlattr *nla)
 {
 	struct nft_table *table;
 
@@ -116,16 +115,6 @@ static struct nft_table *nf_tables_table_lookup(const struct nft_af_info *afi,
 	if (table != NULL)
 		return table;
 
-#ifdef CONFIG_MODULES
-	if (autoload) {
-		nfnl_unlock(NFNL_SUBSYS_NFTABLES);
-		request_module("nft-table-%u-%*.s", afi->family,
-			       nla_len(nla)-1, (const char *)nla_data(nla));
-		nfnl_lock(NFNL_SUBSYS_NFTABLES);
-		if (nft_table_lookup(afi, nla))
-			return ERR_PTR(-EAGAIN);
-	}
-#endif
 	return ERR_PTR(-ENOENT);
 }
 
@@ -134,6 +123,39 @@ static inline u64 nf_tables_alloc_handle(struct nft_table *table)
 	return ++table->hgenerator;
 }
 
+static struct nf_chain_type *chain_type[AF_MAX][NFT_CHAIN_T_MAX];
+
+static int __nf_tables_chain_type_lookup(int family, const struct nlattr *nla)
+{
+	int i;
+
+	for (i=0; i<NFT_CHAIN_T_MAX; i++) {
+		if (chain_type[family][i] != NULL &&
+		    !nla_strcmp(nla, chain_type[family][i]->name))
+			return i;
+	}
+	return -1;
+}
+
+static int nf_tables_chain_type_lookup(const struct nft_af_info *afi,
+				       const struct nlattr *nla,
+				       bool autoload)
+{
+	int type;
+
+	type = __nf_tables_chain_type_lookup(afi->family, nla);
+#ifdef CONFIG_MODULES
+	if (type < 0 && autoload) {
+		nfnl_unlock(NFNL_SUBSYS_NFTABLES);
+		request_module("nft-chain-%u-%*.s", afi->family,
+			       nla_len(nla)-1, (const char *)nla_data(nla));
+		nfnl_lock(NFNL_SUBSYS_NFTABLES);
+		type = __nf_tables_chain_type_lookup(afi->family, nla);
+	}
+#endif
+	return type;
+}
+
 static const struct nla_policy nft_table_policy[NFTA_TABLE_MAX + 1] = {
 	[NFTA_TABLE_NAME]	= { .type = NLA_STRING },
 };
@@ -258,7 +280,7 @@ static int nf_tables_gettable(struct sock *nlsk, struct sk_buff *skb,
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
-	table = nf_tables_table_lookup(afi, nla[NFTA_TABLE_NAME], false);
+	table = nf_tables_table_lookup(afi, nla[NFTA_TABLE_NAME]);
 	if (IS_ERR(table))
 		return PTR_ERR(table);
 
@@ -294,7 +316,7 @@ static int nf_tables_newtable(struct sock *nlsk, struct sk_buff *skb,
 		return PTR_ERR(afi);
 
 	name = nla[NFTA_TABLE_NAME];
-	table = nf_tables_table_lookup(afi, name, false);
+	table = nf_tables_table_lookup(afi, name);
 	if (IS_ERR(table)) {
 		if (PTR_ERR(table) != -ENOENT)
 			return PTR_ERR(table);
@@ -335,13 +357,10 @@ static int nf_tables_deltable(struct sock *nlsk, struct sk_buff *skb,
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
-	table = nf_tables_table_lookup(afi, nla[NFTA_TABLE_NAME], false);
+	table = nf_tables_table_lookup(afi, nla[NFTA_TABLE_NAME]);
 	if (IS_ERR(table))
 		return PTR_ERR(table);
 
-	if (table->flags & NFT_TABLE_BUILTIN)
-		return -EOPNOTSUPP;
-
 	if (table->use)
 		return -EBUSY;
 
@@ -351,99 +370,34 @@ static int nf_tables_deltable(struct sock *nlsk, struct sk_buff *skb,
 	return 0;
 }
 
-static struct nft_table *__nf_tables_table_lookup(const struct nft_af_info *afi,
-						  const char *name)
+int nft_register_chain_type(struct nf_chain_type *ctype)
 {
-	struct nft_table *table;
-
-	list_for_each_entry(table, &afi->tables, list) {
-		if (!strcmp(name, table->name))
-			return table;
-	}
-
-	return ERR_PTR(-ENOENT);
-}
-
-static int nf_tables_chain_notify(const struct sk_buff *oskb,
-				  const struct nlmsghdr *nlh,
-				  const struct nft_table *table,
-				  const struct nft_chain *chain,
-				  int event, int family);
-
-/**
- *	nft_register_table - register a built-in table
- *
- *	@table: the table to register
- *	@family: protocol family to register table with
- *
- *	Register a built-in table for use with nf_tables. Returns zero on
- *	success or a negative errno code otherwise.
- */
-int nft_register_table(struct nft_table *table, int family)
-{
-	struct nft_af_info *afi;
-	struct nft_table *t;
-	struct nft_chain *chain;
-	int err;
+	int err = 0;
 
 	nfnl_lock(NFNL_SUBSYS_NFTABLES);
-again:
-	afi = nf_tables_afinfo_lookup(family, true);
-	if (IS_ERR(afi)) {
-		err = PTR_ERR(afi);
-		if (err == -EAGAIN)
-			goto again;
-		goto err;
-	}
-
-	t = __nf_tables_table_lookup(afi, table->name);
-	if (IS_ERR(t)) {
-		err = PTR_ERR(t);
-		if (err != -ENOENT)
-			goto err;
-		t = NULL;
+	if (chain_type[ctype->family][ctype->type] != NULL) {
+		err = -EBUSY;
+		goto out;
 	}
 
-	if (t != NULL) {
-		err = -EEXIST;
-		goto err;
-	}
+	if (!try_module_get(ctype->me))
+		goto out;
 
-	table->flags |= NFT_TABLE_BUILTIN;
-	INIT_LIST_HEAD(&table->sets);
-	list_add_tail(&table->list, &afi->tables);
-	nf_tables_table_notify(NULL, NULL, table, NFT_MSG_NEWTABLE, family);
-	list_for_each_entry(chain, &table->chains, list)
-		nf_tables_chain_notify(NULL, NULL, table, chain,
-				       NFT_MSG_NEWCHAIN, family);
-	err = 0;
-err:
+	chain_type[ctype->family][ctype->type] = ctype;
+out:
 	nfnl_unlock(NFNL_SUBSYS_NFTABLES);
 	return err;
 }
-EXPORT_SYMBOL_GPL(nft_register_table);
+EXPORT_SYMBOL_GPL(nft_register_chain_type);
 
-/**
- *	nft_unregister_table - unregister a built-in table
- *
- *	@table: the table to unregister
- *	@family: protocol family to unregister table with
- *
- *	Unregister a built-in table for use with nf_tables.
- */
-void nft_unregister_table(struct nft_table *table, int family)
+void nft_unregister_chain_type(struct nf_chain_type *ctype)
 {
-	struct nft_chain *chain;
-
 	nfnl_lock(NFNL_SUBSYS_NFTABLES);
-	list_del(&table->list);
-	list_for_each_entry(chain, &table->chains, list)
-		nf_tables_chain_notify(NULL, NULL, table, chain,
-				       NFT_MSG_DELCHAIN, family);
-	nf_tables_table_notify(NULL, NULL, table, NFT_MSG_DELTABLE, family);
+	chain_type[ctype->family][ctype->type] = NULL;
+	module_put(ctype->me);
 	nfnl_unlock(NFNL_SUBSYS_NFTABLES);
 }
-EXPORT_SYMBOL_GPL(nft_unregister_table);
+EXPORT_SYMBOL_GPL(nft_unregister_chain_type);
 
 /*
  * Chains
@@ -484,6 +438,7 @@ static const struct nla_policy nft_chain_policy[NFTA_CHAIN_MAX + 1] = {
 	[NFTA_CHAIN_NAME]	= { .type = NLA_STRING,
 				    .len = NFT_CHAIN_MAXNAMELEN - 1 },
 	[NFTA_CHAIN_HOOK]	= { .type = NLA_NESTED },
+	[NFTA_CHAIN_TYPE]	= { .type = NLA_NUL_STRING },
 };
 
 static const struct nla_policy nft_hook_policy[NFTA_HOOK_MAX + 1] = {
@@ -526,6 +481,10 @@ static int nf_tables_fill_chain_info(struct sk_buff *skb, u32 portid, u32 seq,
 		if (nla_put_be32(skb, NFTA_HOOK_PRIORITY, htonl(ops->priority)))
 			goto nla_put_failure;
 		nla_nest_end(skb, nest);
+
+		if (nla_put_string(skb, NFTA_CHAIN_TYPE,
+			chain_type[ops->pf][nft_base_chain(chain)->type]->name))
+				goto nla_put_failure;
 	}
 
 	return nlmsg_end(skb, nlh);
@@ -633,7 +592,7 @@ static int nf_tables_getchain(struct sock *nlsk, struct sk_buff *skb,
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
-	table = nf_tables_table_lookup(afi, nla[NFTA_CHAIN_TABLE], false);
+	table = nf_tables_table_lookup(afi, nla[NFTA_CHAIN_TABLE]);
 	if (IS_ERR(table))
 		return PTR_ERR(table);
 
@@ -680,7 +639,7 @@ static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
-	table = nf_tables_table_lookup(afi, nla[NFTA_CHAIN_TABLE], create);
+	table = nf_tables_table_lookup(afi, nla[NFTA_CHAIN_TABLE]);
 	if (IS_ERR(table))
 		return PTR_ERR(table);
 
@@ -722,6 +681,17 @@ static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
 
 	if (nla[NFTA_CHAIN_HOOK]) {
 		struct nf_hook_ops *ops;
+		nf_hookfn *hookfn;
+		u32 hooknum;
+		int type = NFT_CHAIN_T_DEFAULT;
+
+		if (nla[NFTA_CHAIN_TYPE]) {
+			type = nf_tables_chain_type_lookup(afi,
+							   nla[NFTA_CHAIN_TYPE],
+							   create);
+			if (type < 0)
+				return -ENOENT;
+		}
 
 		err = nla_parse_nested(ha, NFTA_HOOK_MAX, nla[NFTA_CHAIN_HOOK],
 				       nft_hook_policy);
@@ -730,12 +700,20 @@ static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
 		if (ha[NFTA_HOOK_HOOKNUM] == NULL ||
 		    ha[NFTA_HOOK_PRIORITY] == NULL)
 			return -EINVAL;
-		if (ntohl(nla_get_be32(ha[NFTA_HOOK_HOOKNUM])) >= afi->nhooks)
+
+		hooknum = ntohl(nla_get_be32(ha[NFTA_HOOK_HOOKNUM]));
+		if (hooknum >= afi->nhooks)
 			return -EINVAL;
 
+		hookfn = chain_type[family][type]->fn[hooknum];
+		if (hookfn == NULL)
+			return -EOPNOTSUPP;
+
 		basechain = kzalloc(sizeof(*basechain), GFP_KERNEL);
 		if (basechain == NULL)
 			return -ENOMEM;
+
+		basechain->type = type;
 		chain = &basechain->chain;
 
 		ops = &basechain->ops;
@@ -744,7 +722,7 @@ static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
 		ops->hooknum	= ntohl(nla_get_be32(ha[NFTA_HOOK_HOOKNUM]));
 		ops->priority	= ntohl(nla_get_be32(ha[NFTA_HOOK_PRIORITY]));
 		ops->priv	= chain;
-		ops->hook	= nft_do_chain;
+		ops->hook       = hookfn;
 		if (afi->hooks[ops->hooknum])
 			ops->hook = afi->hooks[ops->hooknum];
 
@@ -793,7 +771,7 @@ static int nf_tables_delchain(struct sock *nlsk, struct sk_buff *skb,
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
-	table = nf_tables_table_lookup(afi, nla[NFTA_CHAIN_TABLE], false);
+	table = nf_tables_table_lookup(afi, nla[NFTA_CHAIN_TABLE]);
 	if (IS_ERR(table))
 		return PTR_ERR(table);
 
@@ -801,9 +779,6 @@ static int nf_tables_delchain(struct sock *nlsk, struct sk_buff *skb,
 	if (IS_ERR(chain))
 		return PTR_ERR(chain);
 
-	if (chain->flags & NFT_CHAIN_BUILTIN)
-		return -EOPNOTSUPP;
-
 	if (!list_empty(&chain->rules))
 		return -EBUSY;
 
@@ -1190,7 +1165,7 @@ static int nf_tables_getrule(struct sock *nlsk, struct sk_buff *skb,
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
-	table = nf_tables_table_lookup(afi, nla[NFTA_RULE_TABLE], false);
+	table = nf_tables_table_lookup(afi, nla[NFTA_RULE_TABLE]);
 	if (IS_ERR(table))
 		return PTR_ERR(table);
 
@@ -1268,7 +1243,7 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
-	table = nf_tables_table_lookup(afi, nla[NFTA_RULE_TABLE], create);
+	table = nf_tables_table_lookup(afi, nla[NFTA_RULE_TABLE]);
 	if (IS_ERR(table))
 		return PTR_ERR(table);
 
@@ -1374,7 +1349,7 @@ static int nf_tables_delrule(struct sock *nlsk, struct sk_buff *skb,
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
-	table = nf_tables_table_lookup(afi, nla[NFTA_RULE_TABLE], false);
+	table = nf_tables_table_lookup(afi, nla[NFTA_RULE_TABLE]);
 	if (IS_ERR(table))
 		return PTR_ERR(table);
 
@@ -1490,7 +1465,7 @@ static int nft_ctx_init_from_setattr(struct nft_ctx *ctx,
 		return PTR_ERR(afi);
 
 	if (nla[NFTA_SET_TABLE] != NULL) {
-		table = nf_tables_table_lookup(afi, nla[NFTA_SET_TABLE], false);
+		table = nf_tables_table_lookup(afi, nla[NFTA_SET_TABLE]);
 		if (IS_ERR(table))
 			return PTR_ERR(table);
 	}
@@ -1820,7 +1795,7 @@ static int nf_tables_newset(struct sock *nlsk, struct sk_buff *skb,
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
-	table = nf_tables_table_lookup(afi, nla[NFTA_SET_TABLE], create);
+	table = nf_tables_table_lookup(afi, nla[NFTA_SET_TABLE]);
 	if (IS_ERR(table))
 		return PTR_ERR(table);
 
@@ -2008,7 +1983,7 @@ static int nft_ctx_init_from_elemattr(struct nft_ctx *ctx,
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
-	table = nf_tables_table_lookup(afi, nla[NFTA_SET_ELEM_LIST_TABLE], false);
+	table = nf_tables_table_lookup(afi, nla[NFTA_SET_ELEM_LIST_TABLE]);
 	if (IS_ERR(table))
 		return PTR_ERR(table);
 
-- 
cgit 


From fc1b691d7651d9496e912de7e0fc73a5be3294af Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 14 Oct 2013 16:57:29 +0300
Subject: perf buildid-cache: Add ability to add kcore to the cache

kcore can be used to view the running kernel object code.  However,
kcore changes as modules are loaded and unloaded, and when the kernel
decides to modify its own code.  Consequently it is useful to create a
copy of kcore at a particular time.  Unlike vmlinux, kcore is not unique
for a given build-id.  And in addition, the kallsyms and modules files
are also needed.  The tool therefore creates a directory:

	~/.debug/[kernel.kcore]/<build-id>/<YYYYmmddHHMMSShh>

which contains: kcore, kallsyms and modules.

Note that the copied kcore contains only code sections.  See the
kcore_copy() function for how that is determined.

The tool will not make additional copies of kcore if there is already
one with the same modules at the same addresses.

Currently, perf tools will not look for kcore in the cache.  That is
addressed in another patch.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/525BF849.5030405@intel.com
[ renamed 'index' to 'idx' to avoid shadowing string.h symbol in f12,
  use at least one member initializer when initializing a struct to
  zeros, also to fix the build on f12 ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-buildid-cache.txt |  13 +
 tools/perf/builtin-buildid-cache.c              | 148 +++++++++-
 tools/perf/util/symbol-elf.c                    | 366 ++++++++++++++++++++++++
 tools/perf/util/symbol-minimal.c                |   6 +
 tools/perf/util/symbol.c                        |  41 +++
 tools/perf/util/symbol.h                        |   3 +
 6 files changed, 576 insertions(+), 1 deletion(-)

diff --git a/tools/perf/Documentation/perf-buildid-cache.txt b/tools/perf/Documentation/perf-buildid-cache.txt
index e9a8349a7172..fd77d81ea748 100644
--- a/tools/perf/Documentation/perf-buildid-cache.txt
+++ b/tools/perf/Documentation/perf-buildid-cache.txt
@@ -21,6 +21,19 @@ OPTIONS
 -a::
 --add=::
         Add specified file to the cache.
+-k::
+--kcore::
+        Add specified kcore file to the cache. For the current host that is
+        /proc/kcore which requires root permissions to read. Be aware that
+        running 'perf buildid-cache' as root may update root's build-id cache
+        not the user's. Use the -v option to see where the file is created.
+        Note that the copied file contains only code sections not the whole core
+        image. Note also that files "kallsyms" and "modules" must also be in the
+        same directory and are also copied.  All 3 files are created with read
+        permissions for root only. kcore will not be added if there is already a
+        kcore in the cache (with the same build-id) that has the same modules at
+        the same addresses. Use the -v option to see if a copy of kcore is
+        actually made.
 -r::
 --remove=::
         Remove specified file from the cache.
diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c
index c96c8fa38243..8140b7b249fa 100644
--- a/tools/perf/builtin-buildid-cache.c
+++ b/tools/perf/builtin-buildid-cache.c
@@ -6,6 +6,11 @@
  * Copyright (C) 2010, Red Hat Inc.
  * Copyright (C) 2010, Arnaldo Carvalho de Melo <acme@redhat.com>
  */
+#include <sys/types.h>
+#include <sys/time.h>
+#include <time.h>
+#include <dirent.h>
+#include <unistd.h>
 #include "builtin.h"
 #include "perf.h"
 #include "util/cache.h"
@@ -17,6 +22,140 @@
 #include "util/session.h"
 #include "util/symbol.h"
 
+static int build_id_cache__kcore_buildid(const char *proc_dir, char *sbuildid)
+{
+	char root_dir[PATH_MAX];
+	char notes[PATH_MAX];
+	u8 build_id[BUILD_ID_SIZE];
+	char *p;
+
+	strlcpy(root_dir, proc_dir, sizeof(root_dir));
+
+	p = strrchr(root_dir, '/');
+	if (!p)
+		return -1;
+	*p = '\0';
+
+	scnprintf(notes, sizeof(notes), "%s/sys/kernel/notes", root_dir);
+
+	if (sysfs__read_build_id(notes, build_id, sizeof(build_id)))
+		return -1;
+
+	build_id__sprintf(build_id, sizeof(build_id), sbuildid);
+
+	return 0;
+}
+
+static int build_id_cache__kcore_dir(char *dir, size_t sz)
+{
+	struct timeval tv;
+	struct tm tm;
+	char dt[32];
+
+	if (gettimeofday(&tv, NULL) || !localtime_r(&tv.tv_sec, &tm))
+		return -1;
+
+	if (!strftime(dt, sizeof(dt), "%Y%m%d%H%M%S", &tm))
+		return -1;
+
+	scnprintf(dir, sz, "%s%02u", dt, (unsigned)tv.tv_usec / 10000);
+
+	return 0;
+}
+
+static int build_id_cache__kcore_existing(const char *from_dir, char *to_dir,
+					  size_t to_dir_sz)
+{
+	char from[PATH_MAX];
+	char to[PATH_MAX];
+	struct dirent *dent;
+	int ret = -1;
+	DIR *d;
+
+	d = opendir(to_dir);
+	if (!d)
+		return -1;
+
+	scnprintf(from, sizeof(from), "%s/modules", from_dir);
+
+	while (1) {
+		dent = readdir(d);
+		if (!dent)
+			break;
+		if (dent->d_type != DT_DIR)
+			continue;
+		scnprintf(to, sizeof(to), "%s/%s/modules", to_dir,
+			  dent->d_name);
+		if (!compare_proc_modules(from, to)) {
+			scnprintf(to, sizeof(to), "%s/%s", to_dir,
+				  dent->d_name);
+			strlcpy(to_dir, to, to_dir_sz);
+			ret = 0;
+			break;
+		}
+	}
+
+	closedir(d);
+
+	return ret;
+}
+
+static int build_id_cache__add_kcore(const char *filename, const char *debugdir)
+{
+	char dir[32], sbuildid[BUILD_ID_SIZE * 2 + 1];
+	char from_dir[PATH_MAX], to_dir[PATH_MAX];
+	char *p;
+
+	strlcpy(from_dir, filename, sizeof(from_dir));
+
+	p = strrchr(from_dir, '/');
+	if (!p || strcmp(p + 1, "kcore"))
+		return -1;
+	*p = '\0';
+
+	if (build_id_cache__kcore_buildid(from_dir, sbuildid))
+		return -1;
+
+	scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s",
+		  debugdir, sbuildid);
+
+	if (!build_id_cache__kcore_existing(from_dir, to_dir, sizeof(to_dir))) {
+		pr_debug("same kcore found in %s\n", to_dir);
+		return 0;
+	}
+
+	if (build_id_cache__kcore_dir(dir, sizeof(dir)))
+		return -1;
+
+	scnprintf(to_dir, sizeof(to_dir), "%s/[kernel.kcore]/%s/%s",
+		  debugdir, sbuildid, dir);
+
+	if (mkdir_p(to_dir, 0755))
+		return -1;
+
+	if (kcore_copy(from_dir, to_dir)) {
+		/* Remove YYYYmmddHHMMSShh directory */
+		if (!rmdir(to_dir)) {
+			p = strrchr(to_dir, '/');
+			if (p)
+				*p = '\0';
+			/* Try to remove buildid directory */
+			if (!rmdir(to_dir)) {
+				p = strrchr(to_dir, '/');
+				if (p)
+					*p = '\0';
+				/* Try to remove [kernel.kcore] directory */
+				rmdir(to_dir);
+			}
+		}
+		return -1;
+	}
+
+	pr_debug("kcore added to build-id cache directory %s\n", to_dir);
+
+	return 0;
+}
+
 static int build_id_cache__add_file(const char *filename, const char *debugdir)
 {
 	char sbuild_id[BUILD_ID_SIZE * 2 + 1];
@@ -130,11 +269,14 @@ int cmd_buildid_cache(int argc, const char **argv,
 	char const *add_name_list_str = NULL,
 		   *remove_name_list_str = NULL,
 		   *missing_filename = NULL,
-		   *update_name_list_str = NULL;
+		   *update_name_list_str = NULL,
+		   *kcore_filename;
 
 	const struct option buildid_cache_options[] = {
 	OPT_STRING('a', "add", &add_name_list_str,
 		   "file list", "file(s) to add"),
+	OPT_STRING('k', "kcore", &kcore_filename,
+		   "file", "kcore file to add"),
 	OPT_STRING('r', "remove", &remove_name_list_str, "file list",
 		    "file(s) to remove"),
 	OPT_STRING('M', "missing", &missing_filename, "file",
@@ -217,5 +359,9 @@ int cmd_buildid_cache(int argc, const char **argv,
 		}
 	}
 
+	if (kcore_filename &&
+	    build_id_cache__add_kcore(kcore_filename, debugdir))
+		pr_warning("Couldn't add %s\n", kcore_filename);
+
 	return ret;
 }
diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index 499c71d30225..d6b8af3ce344 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -1202,6 +1202,372 @@ static off_t kcore__write(struct kcore *kcore)
 	return elf_update(kcore->elf, ELF_C_WRITE);
 }
 
+struct phdr_data {
+	off_t offset;
+	u64 addr;
+	u64 len;
+};
+
+struct kcore_copy_info {
+	u64 stext;
+	u64 etext;
+	u64 first_symbol;
+	u64 last_symbol;
+	u64 first_module;
+	u64 last_module_symbol;
+	struct phdr_data kernel_map;
+	struct phdr_data modules_map;
+};
+
+static int kcore_copy__process_kallsyms(void *arg, const char *name, char type,
+					u64 start)
+{
+	struct kcore_copy_info *kci = arg;
+
+	if (!symbol_type__is_a(type, MAP__FUNCTION))
+		return 0;
+
+	if (strchr(name, '[')) {
+		if (start > kci->last_module_symbol)
+			kci->last_module_symbol = start;
+		return 0;
+	}
+
+	if (!kci->first_symbol || start < kci->first_symbol)
+		kci->first_symbol = start;
+
+	if (!kci->last_symbol || start > kci->last_symbol)
+		kci->last_symbol = start;
+
+	if (!strcmp(name, "_stext")) {
+		kci->stext = start;
+		return 0;
+	}
+
+	if (!strcmp(name, "_etext")) {
+		kci->etext = start;
+		return 0;
+	}
+
+	return 0;
+}
+
+static int kcore_copy__parse_kallsyms(struct kcore_copy_info *kci,
+				      const char *dir)
+{
+	char kallsyms_filename[PATH_MAX];
+
+	scnprintf(kallsyms_filename, PATH_MAX, "%s/kallsyms", dir);
+
+	if (symbol__restricted_filename(kallsyms_filename, "/proc/kallsyms"))
+		return -1;
+
+	if (kallsyms__parse(kallsyms_filename, kci,
+			    kcore_copy__process_kallsyms) < 0)
+		return -1;
+
+	return 0;
+}
+
+static int kcore_copy__process_modules(void *arg,
+				       const char *name __maybe_unused,
+				       u64 start)
+{
+	struct kcore_copy_info *kci = arg;
+
+	if (!kci->first_module || start < kci->first_module)
+		kci->first_module = start;
+
+	return 0;
+}
+
+static int kcore_copy__parse_modules(struct kcore_copy_info *kci,
+				     const char *dir)
+{
+	char modules_filename[PATH_MAX];
+
+	scnprintf(modules_filename, PATH_MAX, "%s/modules", dir);
+
+	if (symbol__restricted_filename(modules_filename, "/proc/modules"))
+		return -1;
+
+	if (modules__parse(modules_filename, kci,
+			   kcore_copy__process_modules) < 0)
+		return -1;
+
+	return 0;
+}
+
+static void kcore_copy__map(struct phdr_data *p, u64 start, u64 end, u64 pgoff,
+			    u64 s, u64 e)
+{
+	if (p->addr || s < start || s >= end)
+		return;
+
+	p->addr = s;
+	p->offset = (s - start) + pgoff;
+	p->len = e < end ? e - s : end - s;
+}
+
+static int kcore_copy__read_map(u64 start, u64 len, u64 pgoff, void *data)
+{
+	struct kcore_copy_info *kci = data;
+	u64 end = start + len;
+
+	kcore_copy__map(&kci->kernel_map, start, end, pgoff, kci->stext,
+			kci->etext);
+
+	kcore_copy__map(&kci->modules_map, start, end, pgoff, kci->first_module,
+			kci->last_module_symbol);
+
+	return 0;
+}
+
+static int kcore_copy__read_maps(struct kcore_copy_info *kci, Elf *elf)
+{
+	if (elf_read_maps(elf, true, kcore_copy__read_map, kci) < 0)
+		return -1;
+
+	return 0;
+}
+
+static int kcore_copy__calc_maps(struct kcore_copy_info *kci, const char *dir,
+				 Elf *elf)
+{
+	if (kcore_copy__parse_kallsyms(kci, dir))
+		return -1;
+
+	if (kcore_copy__parse_modules(kci, dir))
+		return -1;
+
+	if (kci->stext)
+		kci->stext = round_down(kci->stext, page_size);
+	else
+		kci->stext = round_down(kci->first_symbol, page_size);
+
+	if (kci->etext) {
+		kci->etext = round_up(kci->etext, page_size);
+	} else if (kci->last_symbol) {
+		kci->etext = round_up(kci->last_symbol, page_size);
+		kci->etext += page_size;
+	}
+
+	kci->first_module = round_down(kci->first_module, page_size);
+
+	if (kci->last_module_symbol) {
+		kci->last_module_symbol = round_up(kci->last_module_symbol,
+						   page_size);
+		kci->last_module_symbol += page_size;
+	}
+
+	if (!kci->stext || !kci->etext)
+		return -1;
+
+	if (kci->first_module && !kci->last_module_symbol)
+		return -1;
+
+	return kcore_copy__read_maps(kci, elf);
+}
+
+static int kcore_copy__copy_file(const char *from_dir, const char *to_dir,
+				 const char *name)
+{
+	char from_filename[PATH_MAX];
+	char to_filename[PATH_MAX];
+
+	scnprintf(from_filename, PATH_MAX, "%s/%s", from_dir, name);
+	scnprintf(to_filename, PATH_MAX, "%s/%s", to_dir, name);
+
+	return copyfile_mode(from_filename, to_filename, 0400);
+}
+
+static int kcore_copy__unlink(const char *dir, const char *name)
+{
+	char filename[PATH_MAX];
+
+	scnprintf(filename, PATH_MAX, "%s/%s", dir, name);
+
+	return unlink(filename);
+}
+
+static int kcore_copy__compare_fds(int from, int to)
+{
+	char *buf_from;
+	char *buf_to;
+	ssize_t ret;
+	size_t len;
+	int err = -1;
+
+	buf_from = malloc(page_size);
+	buf_to = malloc(page_size);
+	if (!buf_from || !buf_to)
+		goto out;
+
+	while (1) {
+		/* Use read because mmap won't work on proc files */
+		ret = read(from, buf_from, page_size);
+		if (ret < 0)
+			goto out;
+
+		if (!ret)
+			break;
+
+		len = ret;
+
+		if (readn(to, buf_to, len) != (int)len)
+			goto out;
+
+		if (memcmp(buf_from, buf_to, len))
+			goto out;
+	}
+
+	err = 0;
+out:
+	free(buf_to);
+	free(buf_from);
+	return err;
+}
+
+static int kcore_copy__compare_files(const char *from_filename,
+				     const char *to_filename)
+{
+	int from, to, err = -1;
+
+	from = open(from_filename, O_RDONLY);
+	if (from < 0)
+		return -1;
+
+	to = open(to_filename, O_RDONLY);
+	if (to < 0)
+		goto out_close_from;
+
+	err = kcore_copy__compare_fds(from, to);
+
+	close(to);
+out_close_from:
+	close(from);
+	return err;
+}
+
+static int kcore_copy__compare_file(const char *from_dir, const char *to_dir,
+				    const char *name)
+{
+	char from_filename[PATH_MAX];
+	char to_filename[PATH_MAX];
+
+	scnprintf(from_filename, PATH_MAX, "%s/%s", from_dir, name);
+	scnprintf(to_filename, PATH_MAX, "%s/%s", to_dir, name);
+
+	return kcore_copy__compare_files(from_filename, to_filename);
+}
+
+/**
+ * kcore_copy - copy kallsyms, modules and kcore from one directory to another.
+ * @from_dir: from directory
+ * @to_dir: to directory
+ *
+ * This function copies kallsyms, modules and kcore files from one directory to
+ * another.  kallsyms and modules are copied entirely.  Only code segments are
+ * copied from kcore.  It is assumed that two segments suffice: one for the
+ * kernel proper and one for all the modules.  The code segments are determined
+ * from kallsyms and modules files.  The kernel map starts at _stext or the
+ * lowest function symbol, and ends at _etext or the highest function symbol.
+ * The module map starts at the lowest module address and ends at the highest
+ * module symbol.  Start addresses are rounded down to the nearest page.  End
+ * addresses are rounded up to the nearest page.  An extra page is added to the
+ * highest kernel symbol and highest module symbol to, hopefully, encompass that
+ * symbol too.  Because it contains only code sections, the resulting kcore is
+ * unusual.  One significant peculiarity is that the mapping (start -> pgoff)
+ * is not the same for the kernel map and the modules map.  That happens because
+ * the data is copied adjacently whereas the original kcore has gaps.  Finally,
+ * kallsyms and modules files are compared with their copies to check that
+ * modules have not been loaded or unloaded while the copies were taking place.
+ *
+ * Return: %0 on success, %-1 on failure.
+ */
+int kcore_copy(const char *from_dir, const char *to_dir)
+{
+	struct kcore kcore;
+	struct kcore extract;
+	size_t count = 2;
+	int idx = 0, err = -1;
+	off_t offset = page_size, sz, modules_offset = 0;
+	struct kcore_copy_info kci = { .stext = 0, };
+	char kcore_filename[PATH_MAX];
+	char extract_filename[PATH_MAX];
+
+	if (kcore_copy__copy_file(from_dir, to_dir, "kallsyms"))
+		return -1;
+
+	if (kcore_copy__copy_file(from_dir, to_dir, "modules"))
+		goto out_unlink_kallsyms;
+
+	scnprintf(kcore_filename, PATH_MAX, "%s/kcore", from_dir);
+	scnprintf(extract_filename, PATH_MAX, "%s/kcore", to_dir);
+
+	if (kcore__open(&kcore, kcore_filename))
+		goto out_unlink_modules;
+
+	if (kcore_copy__calc_maps(&kci, from_dir, kcore.elf))
+		goto out_kcore_close;
+
+	if (kcore__init(&extract, extract_filename, kcore.elfclass, false))
+		goto out_kcore_close;
+
+	if (!kci.modules_map.addr)
+		count -= 1;
+
+	if (kcore__copy_hdr(&kcore, &extract, count))
+		goto out_extract_close;
+
+	if (kcore__add_phdr(&extract, idx++, offset, kci.kernel_map.addr,
+			    kci.kernel_map.len))
+		goto out_extract_close;
+
+	if (kci.modules_map.addr) {
+		modules_offset = offset + kci.kernel_map.len;
+		if (kcore__add_phdr(&extract, idx, modules_offset,
+				    kci.modules_map.addr, kci.modules_map.len))
+			goto out_extract_close;
+	}
+
+	sz = kcore__write(&extract);
+	if (sz < 0 || sz > offset)
+		goto out_extract_close;
+
+	if (copy_bytes(kcore.fd, kci.kernel_map.offset, extract.fd, offset,
+		       kci.kernel_map.len))
+		goto out_extract_close;
+
+	if (modules_offset && copy_bytes(kcore.fd, kci.modules_map.offset,
+					 extract.fd, modules_offset,
+					 kci.modules_map.len))
+		goto out_extract_close;
+
+	if (kcore_copy__compare_file(from_dir, to_dir, "modules"))
+		goto out_extract_close;
+
+	if (kcore_copy__compare_file(from_dir, to_dir, "kallsyms"))
+		goto out_extract_close;
+
+	err = 0;
+
+out_extract_close:
+	kcore__close(&extract);
+	if (err)
+		unlink(extract_filename);
+out_kcore_close:
+	kcore__close(&kcore);
+out_unlink_modules:
+	if (err)
+		kcore_copy__unlink(to_dir, "modules");
+out_unlink_kallsyms:
+	if (err)
+		kcore_copy__unlink(to_dir, "kallsyms");
+
+	return err;
+}
+
 int kcore_extract__create(struct kcore_extract *kce)
 {
 	struct kcore kcore;
diff --git a/tools/perf/util/symbol-minimal.c b/tools/perf/util/symbol-minimal.c
index 928556d2508f..2d2dd0532b5a 100644
--- a/tools/perf/util/symbol-minimal.c
+++ b/tools/perf/util/symbol-minimal.c
@@ -317,6 +317,12 @@ void kcore_extract__delete(struct kcore_extract *kce __maybe_unused)
 {
 }
 
+int kcore_copy(const char *from_dir __maybe_unused,
+	       const char *to_dir __maybe_unused)
+{
+	return -1;
+}
+
 void symbol__elf_init(void)
 {
 }
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index 76a9e933a7a5..b66c1eefc313 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -893,6 +893,47 @@ static int read_proc_modules(const char *filename, struct rb_root *modules)
 	return 0;
 }
 
+int compare_proc_modules(const char *from, const char *to)
+{
+	struct rb_root from_modules = RB_ROOT;
+	struct rb_root to_modules = RB_ROOT;
+	struct rb_node *from_node, *to_node;
+	struct module_info *from_m, *to_m;
+	int ret = -1;
+
+	if (read_proc_modules(from, &from_modules))
+		return -1;
+
+	if (read_proc_modules(to, &to_modules))
+		goto out_delete_from;
+
+	from_node = rb_first(&from_modules);
+	to_node = rb_first(&to_modules);
+	while (from_node) {
+		if (!to_node)
+			break;
+
+		from_m = rb_entry(from_node, struct module_info, rb_node);
+		to_m = rb_entry(to_node, struct module_info, rb_node);
+
+		if (from_m->start != to_m->start ||
+		    strcmp(from_m->name, to_m->name))
+			break;
+
+		from_node = rb_next(from_node);
+		to_node = rb_next(to_node);
+	}
+
+	if (!from_node && !to_node)
+		ret = 0;
+
+	delete_modules(&to_modules);
+out_delete_from:
+	delete_modules(&from_modules);
+
+	return ret;
+}
+
 static int do_validate_kcore_modules(const char *filename, struct map *map,
 				  struct map_groups *kmaps)
 {
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index fb107e13e925..07de8fea2f48 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -270,4 +270,7 @@ struct kcore_extract {
 int kcore_extract__create(struct kcore_extract *kce);
 void kcore_extract__delete(struct kcore_extract *kce);
 
+int kcore_copy(const char *from_dir, const char *to_dir);
+int compare_proc_modules(const char *from, const char *to);
+
 #endif /* __PERF_SYMBOL */
-- 
cgit 


From 1d5077bdd9a10c4297cded139989bb9ee2998a6c Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Mon, 14 Oct 2013 13:43:44 +0300
Subject: perf annotate: Another fix for annotate_browser__callq()

The target address is provided by objdump and is not necessary a memory
address.  Add a helper to get the correct address.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1381747424-3557-8-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/ui/browsers/annotate.c |  7 +++++--
 tools/perf/util/map.c             | 31 ++++++++++++++++++++++++++++++-
 tools/perf/util/map.h             |  3 +++
 3 files changed, 38 insertions(+), 3 deletions(-)

diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 57d3a8659fc0..f0697a3aede0 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -445,14 +445,17 @@ static bool annotate_browser__callq(struct annotate_browser *browser,
 	struct annotation *notes;
 	struct addr_map_symbol target = {
 		.map = ms->map,
-		.addr = dl->ops.target.addr,
+		.addr = map__objdump_2mem(ms->map, dl->ops.target.addr),
 	};
 	char title[SYM_TITLE_MAX_SIZE];
 
 	if (!ins__is_call(dl->ins))
 		return false;
 
-	if (map_groups__find_ams(&target, NULL)) {
+	if (map_groups__find_ams(&target, NULL) ||
+	    map__rip_2objdump(target.map, target.map->map_ip(target.map,
+							     target.addr)) !=
+	    dl->ops.target.addr) {
 		ui_helpline__puts("The called function was not found.");
 		return true;
 	}
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 9dea404de3fa..ef5bc913ca7a 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -252,10 +252,16 @@ size_t map__fprintf_dsoname(struct map *map, FILE *fp)
 	return fprintf(fp, "%s", dsoname);
 }
 
-/*
+/**
+ * map__rip_2objdump - convert symbol start address to objdump address.
+ * @map: memory map
+ * @rip: symbol start address
+ *
  * objdump wants/reports absolute IPs for ET_EXEC, and RIPs for ET_DYN.
  * map->dso->adjust_symbols==1 for ET_EXEC-like cases except ET_REL which is
  * relative to section start.
+ *
+ * Return: Address suitable for passing to "objdump --start-address="
  */
 u64 map__rip_2objdump(struct map *map, u64 rip)
 {
@@ -268,6 +274,29 @@ u64 map__rip_2objdump(struct map *map, u64 rip)
 	return map->unmap_ip(map, rip);
 }
 
+/**
+ * map__objdump_2mem - convert objdump address to a memory address.
+ * @map: memory map
+ * @ip: objdump address
+ *
+ * Closely related to map__rip_2objdump(), this function takes an address from
+ * objdump and converts it to a memory address.  Note this assumes that @map
+ * contains the address.  To be sure the result is valid, check it forwards
+ * e.g. map__rip_2objdump(map->map_ip(map, map__objdump_2mem(map, ip))) == ip
+ *
+ * Return: Memory address.
+ */
+u64 map__objdump_2mem(struct map *map, u64 ip)
+{
+	if (!map->dso->adjust_symbols)
+		return map->unmap_ip(map, ip);
+
+	if (map->dso->rel)
+		return map->unmap_ip(map, ip + map->pgoff);
+
+	return ip;
+}
+
 void map_groups__init(struct map_groups *mg)
 {
 	int i;
diff --git a/tools/perf/util/map.h b/tools/perf/util/map.h
index 0359b4a808f0..e4e259c3ba16 100644
--- a/tools/perf/util/map.h
+++ b/tools/perf/util/map.h
@@ -84,6 +84,9 @@ static inline u64 identity__map_ip(struct map *map __maybe_unused, u64 ip)
 /* rip/ip <-> addr suitable for passing to `objdump --start-address=` */
 u64 map__rip_2objdump(struct map *map, u64 rip);
 
+/* objdump address -> memory address */
+u64 map__objdump_2mem(struct map *map, u64 ip);
+
 struct symbol;
 
 typedef int (*symbol_filter_t)(struct map *map, struct symbol *sym);
-- 
cgit 


From d4f74eb89199dc7bde5579783e9188841e1271e3 Mon Sep 17 00:00:00 2001
From: Chenggang Qin <chenggang.qcg@taobao.com>
Date: Fri, 11 Oct 2013 08:27:59 +0800
Subject: perf symbols: Fix a memory leak due to symbol__delete not being used

In function symbols__fixup_duplicate(), while duplicated symbols are
found, only the rb_node is removed from the tree. The symbol structures
themself are ignored.  Then, these memory areas are lost.

Signed-off-by: Chenggang Qin <chenggang.qcg@taobao.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Yanmin Zhang <yanmin.zhang@intel.com>
Link: http://lkml.kernel.org/r/1381451279-4109-3-git-send-email-chenggang.qin@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/symbol.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index b66c1eefc313..c0c36965fff0 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -160,10 +160,12 @@ again:
 
 		if (choose_best_symbol(curr, next) == SYMBOL_A) {
 			rb_erase(&next->rb_node, symbols);
+			symbol__delete(next);
 			goto again;
 		} else {
 			nd = rb_next(&curr->rb_node);
 			rb_erase(&curr->rb_node, symbols);
+			symbol__delete(curr);
 		}
 	}
 }
-- 
cgit 


From 784f3390f9bd900adfb3b0373615e105a0d9749a Mon Sep 17 00:00:00 2001
From: Chenggang Qin <chenggang.qcg@taobao.com>
Date: Fri, 11 Oct 2013 08:27:57 +0800
Subject: perf symbols: Fix a mmap and munmap mismatched bug

In function filename__read_debuglink(), while the ELF file is opend and
mmapped in elf_begin(), but if this file is considered to not be usable
during the following code, we will goto the close(fd) directly. The
elf_end() is skipped.  So, the mmaped ELF file cannot be munmapped. The
mmapped areas exist during the life of perf.

This is a memory leak.  This patch fixed this bug.

Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Chenggang Qin <chenggang.qcg@taobao.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Chenggang Qin <chenggang.qcg@taobao.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Yanmin Zhang <yanmin.zhang@intel.com>
Link: http://lkml.kernel.org/r/1381451279-4109-1-git-send-email-chenggang.qin@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/symbol-elf.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/tools/perf/util/symbol-elf.c b/tools/perf/util/symbol-elf.c
index d6b8af3ce344..eed0b96302af 100644
--- a/tools/perf/util/symbol-elf.c
+++ b/tools/perf/util/symbol-elf.c
@@ -487,27 +487,27 @@ int filename__read_debuglink(const char *filename, char *debuglink,
 
 	ek = elf_kind(elf);
 	if (ek != ELF_K_ELF)
-		goto out_close;
+		goto out_elf_end;
 
 	if (gelf_getehdr(elf, &ehdr) == NULL) {
 		pr_err("%s: cannot get elf header.\n", __func__);
-		goto out_close;
+		goto out_elf_end;
 	}
 
 	sec = elf_section_by_name(elf, &ehdr, &shdr,
 				  ".gnu_debuglink", NULL);
 	if (sec == NULL)
-		goto out_close;
+		goto out_elf_end;
 
 	data = elf_getdata(sec, NULL);
 	if (data == NULL)
-		goto out_close;
+		goto out_elf_end;
 
 	/* the start of this section is a zero-terminated string */
 	strncpy(debuglink, data->d_buf, size);
 
+out_elf_end:
 	elf_end(elf);
-
 out_close:
 	close(fd);
 out:
-- 
cgit 


From 55d0ac5d2839fe270cea02fad44eed13750a0efd Mon Sep 17 00:00:00 2001
From: Neil Horman <nhorman@tuxdriver.com>
Date: Tue, 8 Oct 2013 23:43:58 +0000
Subject: fcoe: Fix missing mutex_unlock in fcoe_sysfs_fcf_add error path

In this pending patch:
http://patchwork.open-fcoe.org/patch/104/

Tomas Henzl noted that the error path when fcoe_fcf_device_add fails, was
missing a mutex_unlock call.

Not sure what staet the integration of the above patch is in, but if you could
either merge this with it, or apply it on top of what you already have, that
would be great.  Thanks!

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: thenzl@redhat.com
Reported-by: thenzl@redhat.com
Signed-off-by: Robert Love <robert.w.love@intel.com>
---
 drivers/scsi/fcoe/fcoe_ctlr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/fcoe/fcoe_ctlr.c b/drivers/scsi/fcoe/fcoe_ctlr.c
index 75efdbc54ef8..2aba32f12f13 100644
--- a/drivers/scsi/fcoe/fcoe_ctlr.c
+++ b/drivers/scsi/fcoe/fcoe_ctlr.c
@@ -203,6 +203,7 @@ static int fcoe_sysfs_fcf_add(struct fcoe_fcf *new)
 		fcf_dev = fcoe_fcf_device_add(ctlr_dev, temp);
 		if (unlikely(!fcf_dev)) {
 			rc = -ENOMEM;
+			mutex_unlock(&ctlr_dev->lock);
 			goto out;
 		}
 
-- 
cgit 


From 6942df7f775107b504f10de42c81971f514d718d Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 2 Sep 2013 03:32:33 +0000
Subject: scsi: Convert uses of compare_ether_addr to ether_addr_equal

Preliminary to removing compare_ether_addr altogether:

Use the new bool function ether_addr_equal to add
some clarity and reduce the likelihood for misuse
of compare_ether_addr for sorting.

Done via cocci script:

$ cat compare_ether_addr.cocci
@@
expression a,b;
@@
-	!compare_ether_addr(a, b)
+	ether_addr_equal(a, b)

@@
expression a,b;
@@
-	compare_ether_addr(a, b)
+	!ether_addr_equal(a, b)

@@
expression a,b;
@@
-	!ether_addr_equal(a, b) == 0
+	ether_addr_equal(a, b)

@@
expression a,b;
@@
-	!ether_addr_equal(a, b) != 0
+	!ether_addr_equal(a, b)

@@
expression a,b;
@@
-	ether_addr_equal(a, b) == 0
+	!ether_addr_equal(a, b)

@@
expression a,b;
@@
-	ether_addr_equal(a, b) != 0
+	ether_addr_equal(a, b)

@@
expression a,b;
@@
-	!!ether_addr_equal(a, b)
+	ether_addr_equal(a, b)

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
---
 drivers/scsi/bnx2fc/bnx2fc_fcoe.c |  3 +--
 drivers/scsi/fcoe/fcoe.c          |  2 +-
 drivers/scsi/fcoe/fcoe_ctlr.c     | 22 +++++++++++-----------
 drivers/scsi/fcoe/fcoe_sysfs.c    |  2 +-
 drivers/scsi/fnic/fnic_fcs.c      |  6 +++---
 5 files changed, 17 insertions(+), 18 deletions(-)

diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index 27f2cc4b97a5..23f6eea3fa7a 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -542,8 +542,7 @@ static void bnx2fc_recv_frame(struct sk_buff *skb)
 	vn_port = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));
 	if (vn_port) {
 		port = lport_priv(vn_port);
-		if (compare_ether_addr(port->data_src_addr, dest_mac)
-		    != 0) {
+		if (!ether_addr_equal(port->data_src_addr, dest_mac)) {
 			BNX2FC_HBA_DBG(lport, "fpma mismatch\n");
 			put_cpu();
 			kfree_skb(skb);
diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index 8626988e12a5..f3170008ae71 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -1462,7 +1462,7 @@ static int fcoe_rcv(struct sk_buff *skb, struct net_device *netdev,
 	eh = eth_hdr(skb);
 
 	if (is_fip_mode(ctlr) &&
-	    compare_ether_addr(eh->h_source, ctlr->dest_addr)) {
+	    !ether_addr_equal(eh->h_source, ctlr->dest_addr)) {
 		FCOE_NETDEV_DBG(netdev, "wrong source mac address:%pM\n",
 				eh->h_source);
 		goto err;
diff --git a/drivers/scsi/fcoe/fcoe_ctlr.c b/drivers/scsi/fcoe/fcoe_ctlr.c
index 2aba32f12f13..34a1b1f333b4 100644
--- a/drivers/scsi/fcoe/fcoe_ctlr.c
+++ b/drivers/scsi/fcoe/fcoe_ctlr.c
@@ -339,7 +339,7 @@ static void fcoe_ctlr_announce(struct fcoe_ctlr *fip)
 	spin_unlock_bh(&fip->ctlr_lock);
 	sel = fip->sel_fcf;
 
-	if (sel && !compare_ether_addr(sel->fcf_mac, fip->dest_addr))
+	if (sel && ether_addr_equal(sel->fcf_mac, fip->dest_addr))
 		goto unlock;
 	if (!is_zero_ether_addr(fip->dest_addr)) {
 		printk(KERN_NOTICE "libfcoe: host%d: "
@@ -1039,7 +1039,7 @@ static void fcoe_ctlr_recv_adv(struct fcoe_ctlr *fip, struct sk_buff *skb)
 		if (fcf->switch_name == new.switch_name &&
 		    fcf->fabric_name == new.fabric_name &&
 		    fcf->fc_map == new.fc_map &&
-		    compare_ether_addr(fcf->fcf_mac, new.fcf_mac) == 0) {
+		    ether_addr_equal(fcf->fcf_mac, new.fcf_mac)) {
 			found = 1;
 			break;
 		}
@@ -1379,7 +1379,7 @@ static void fcoe_ctlr_recv_clr_vlink(struct fcoe_ctlr *fip,
 			mp = (struct fip_mac_desc *)desc;
 			if (dlen < sizeof(*mp))
 				goto err;
-			if (compare_ether_addr(mp->fd_mac, fcf->fcf_mac))
+			if (!ether_addr_equal(mp->fd_mac, fcf->fcf_mac))
 				goto err;
 			desc_mask &= ~BIT(FIP_DT_MAC);
 			break;
@@ -1457,8 +1457,8 @@ static void fcoe_ctlr_recv_clr_vlink(struct fcoe_ctlr *fip,
 			 * 'port_id' is already validated, check MAC address and
 			 * wwpn
 			 */
-			if (compare_ether_addr(fip->get_src_addr(vn_port),
-						vp->fd_mac) != 0 ||
+			if (!ether_addr_equal(fip->get_src_addr(vn_port),
+					      vp->fd_mac) ||
 				get_unaligned_be64(&vp->fd_wwpn) !=
 							vn_port->wwpn)
 				continue;
@@ -1521,12 +1521,12 @@ static int fcoe_ctlr_recv_handler(struct fcoe_ctlr *fip, struct sk_buff *skb)
 		goto drop;
 	eh = eth_hdr(skb);
 	if (fip->mode == FIP_MODE_VN2VN) {
-		if (compare_ether_addr(eh->h_dest, fip->ctl_src_addr) &&
-		    compare_ether_addr(eh->h_dest, fcoe_all_vn2vn) &&
-		    compare_ether_addr(eh->h_dest, fcoe_all_p2p))
+		if (!ether_addr_equal(eh->h_dest, fip->ctl_src_addr) &&
+		    !ether_addr_equal(eh->h_dest, fcoe_all_vn2vn) &&
+		    !ether_addr_equal(eh->h_dest, fcoe_all_p2p))
 			goto drop;
-	} else if (compare_ether_addr(eh->h_dest, fip->ctl_src_addr) &&
-		   compare_ether_addr(eh->h_dest, fcoe_all_enode))
+	} else if (!ether_addr_equal(eh->h_dest, fip->ctl_src_addr) &&
+		   !ether_addr_equal(eh->h_dest, fcoe_all_enode))
 		goto drop;
 	fiph = (struct fip_header *)skb->data;
 	op = ntohs(fiph->fip_op);
@@ -1898,7 +1898,7 @@ int fcoe_ctlr_recv_flogi(struct fcoe_ctlr *fip, struct fc_lport *lport,
 		 * address_mode flag to use FC_OUI-based Ethernet DA.
 		 * Otherwise we use the FCoE gateway addr
 		 */
-		if (!compare_ether_addr(sa, (u8[6])FC_FCOE_FLOGI_MAC)) {
+		if (ether_addr_equal(sa, (u8[6])FC_FCOE_FLOGI_MAC)) {
 			fcoe_ctlr_map_dest(fip);
 		} else {
 			memcpy(fip->dest_addr, sa, ETH_ALEN);
diff --git a/drivers/scsi/fcoe/fcoe_sysfs.c b/drivers/scsi/fcoe/fcoe_sysfs.c
index 922c9deeb243..d0d9a2d6120f 100644
--- a/drivers/scsi/fcoe/fcoe_sysfs.c
+++ b/drivers/scsi/fcoe/fcoe_sysfs.c
@@ -653,7 +653,7 @@ static int fcoe_fcf_device_match(struct fcoe_fcf_device *new,
 	if (new->switch_name == old->switch_name &&
 	    new->fabric_name == old->fabric_name &&
 	    new->fc_map == old->fc_map &&
-	    compare_ether_addr(new->mac, old->mac) == 0)
+	    ether_addr_equal(new->mac, old->mac))
 		return 1;
 	return 0;
 }
diff --git a/drivers/scsi/fnic/fnic_fcs.c b/drivers/scsi/fnic/fnic_fcs.c
index 006fa92a02df..902520c65387 100644
--- a/drivers/scsi/fnic/fnic_fcs.c
+++ b/drivers/scsi/fnic/fnic_fcs.c
@@ -651,13 +651,13 @@ void fnic_update_mac_locked(struct fnic *fnic, u8 *new)
 
 	if (is_zero_ether_addr(new))
 		new = ctl;
-	if (!compare_ether_addr(data, new))
+	if (ether_addr_equal(data, new))
 		return;
 	FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host, "update_mac %pM\n", new);
-	if (!is_zero_ether_addr(data) && compare_ether_addr(data, ctl))
+	if (!is_zero_ether_addr(data) && !ether_addr_equal(data, ctl))
 		vnic_dev_del_addr(fnic->vdev, data);
 	memcpy(data, new, ETH_ALEN);
-	if (compare_ether_addr(new, ctl))
+	if (!ether_addr_equal(new, ctl))
 		vnic_dev_add_addr(fnic->vdev, new);
 }
 
-- 
cgit 


From 785a162d147a547bc7a577c1c28f6fb9dbeb4f16 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Mon, 14 Oct 2013 09:27:11 -0400
Subject: sysfs: make sysfs_file_ops() follow ignore_lockdep flag

375b611e60 ("sysfs: remove sysfs_buffer->ops") introduced
sysfs_file_ops() which determines the associated file operation of a
given sysfs_dirent.  As file ops access should be protected by an
active reference, the new function includes a lockdep assertion on the
sysfs_dirent; unfortunately, I forgot to take attr->ignore_lockdep
flag into account and the lockdep assertion trips spuriously for files
which opt out from active reference lockdep checking.

# cat /sys/devices/pci0000:00/0000:00:01.2/usb1/authorized

 ------------[ cut here ]------------
 WARNING: CPU: 1 PID: 540 at /work/os/work/fs/sysfs/file.c:79 sysfs_file_ops+0x4e/0x60()
 Modules linked in:
 CPU: 1 PID: 540 Comm: cat Not tainted 3.11.0-work+ #3
 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
  0000000000000009 ffff880016205c08 ffffffff81ca0131 0000000000000000
  ffff880016205c40 ffffffff81096d0d ffff8800166cb898 ffff8800166f6f60
  ffffffff8125a220 ffff880011ab1ec0 ffff88000aff0c78 ffff880016205c50
 Call Trace:
  [<ffffffff81ca0131>] dump_stack+0x4e/0x82
  [<ffffffff81096d0d>] warn_slowpath_common+0x7d/0xa0
  [<ffffffff81096dea>] warn_slowpath_null+0x1a/0x20
  [<ffffffff8125994e>] sysfs_file_ops+0x4e/0x60
  [<ffffffff8125a274>] sysfs_open_file+0x54/0x300
  [<ffffffff811df612>] do_dentry_open.isra.17+0x182/0x280
  [<ffffffff811df820>] finish_open+0x30/0x40
  [<ffffffff811f0623>] do_last+0x503/0xd90
  [<ffffffff811f0f6b>] path_openat+0xbb/0x6d0
  [<ffffffff811f23ba>] do_filp_open+0x3a/0x90
  [<ffffffff811e09a9>] do_sys_open+0x129/0x220
  [<ffffffff811e0abe>] SyS_open+0x1e/0x20
  [<ffffffff81caf3c2>] system_call_fastpath+0x16/0x1b
 ---[ end trace aa48096b111dafdb ]---

Rename fs/sysfs/dir.c::ignore_lockdep() to sysfs_ignore_lockdep() and
move it to fs/sysfs/sysfs.h and make sysfs_file_ops() skip lockdep
assertion if sysfs_ignore_lockdep() is true.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/dir.c   | 22 ++--------------------
 fs/sysfs/file.c  |  3 ++-
 fs/sysfs/sysfs.h | 16 ++++++++++++++++
 3 files changed, 20 insertions(+), 21 deletions(-)

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index f6025c81bfd5..eab59de47556 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -144,24 +144,6 @@ static void sysfs_unlink_sibling(struct sysfs_dirent *sd)
 		sd->s_parent->s_flags &= ~SYSFS_FLAG_HAS_NS;
 }
 
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-
-/* Test for attributes that want to ignore lockdep for read-locking */
-static bool ignore_lockdep(struct sysfs_dirent *sd)
-{
-	return sysfs_type(sd) == SYSFS_KOBJ_ATTR &&
-			sd->s_attr.attr->ignore_lockdep;
-}
-
-#else
-
-static inline bool ignore_lockdep(struct sysfs_dirent *sd)
-{
-	return true;
-}
-
-#endif
-
 /**
  *	sysfs_get_active - get an active reference to sysfs_dirent
  *	@sd: sysfs_dirent to get an active reference to
@@ -180,7 +162,7 @@ struct sysfs_dirent *sysfs_get_active(struct sysfs_dirent *sd)
 	if (!atomic_inc_unless_negative(&sd->s_active))
 		return NULL;
 
-	if (likely(!ignore_lockdep(sd)))
+	if (likely(!sysfs_ignore_lockdep(sd)))
 		rwsem_acquire_read(&sd->dep_map, 0, 1, _RET_IP_);
 	return sd;
 }
@@ -199,7 +181,7 @@ void sysfs_put_active(struct sysfs_dirent *sd)
 	if (unlikely(!sd))
 		return;
 
-	if (likely(!ignore_lockdep(sd)))
+	if (likely(!sysfs_ignore_lockdep(sd)))
 		rwsem_release(&sd->dep_map, 1, _RET_IP_);
 	v = atomic_dec_return(&sd->s_active);
 	if (likely(v != SD_DEACTIVATED_BIAS))
diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 5f7a955550de..c324ee906df0 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -76,7 +76,8 @@ static const struct sysfs_ops *sysfs_file_ops(struct sysfs_dirent *sd)
 {
 	struct kobject *kobj = sd->s_parent->s_dir.kobj;
 
-	lockdep_assert_held(sd);
+	if (!sysfs_ignore_lockdep(sd))
+		lockdep_assert_held(sd);
 	return kobj->ktype ? kobj->ktype->sysfs_ops : NULL;
 }
 
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index 4e01d3b3909c..94ac8fa34dd4 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -103,6 +103,7 @@ static inline unsigned int sysfs_type(struct sysfs_dirent *sd)
 }
 
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
+
 #define sysfs_dirent_init_lockdep(sd)				\
 do {								\
 	struct attribute *attr = sd->s_attr.attr;		\
@@ -112,8 +113,23 @@ do {								\
 								\
 	lockdep_init_map(&sd->dep_map, "s_active", key, 0);	\
 } while (0)
+
+/* Test for attributes that want to ignore lockdep for read-locking */
+static inline bool sysfs_ignore_lockdep(struct sysfs_dirent *sd)
+{
+	return sysfs_type(sd) == SYSFS_KOBJ_ATTR &&
+		sd->s_attr.attr->ignore_lockdep;
+}
+
 #else
+
 #define sysfs_dirent_init_lockdep(sd) do {} while (0)
+
+static inline bool sysfs_ignore_lockdep(struct sysfs_dirent *sd)
+{
+	return true;
+}
+
 #endif
 
 /*
-- 
cgit 


From 0ca743a5599199152a31a7146b83213c786c2eb2 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Mon, 14 Oct 2013 00:06:06 +0200
Subject: netfilter: nf_tables: add compatibility layer for x_tables

This patch adds the x_tables compatibility layer. This allows you
to use existing x_tables matches and targets from nf_tables.

This compatibility later allows us to use existing matches/targets
for features that are still missing in nf_tables. We can progressively
replace them with native nf_tables extensions. It also provides the
userspace compatibility software that allows you to express the
rule-set using the iptables syntax but using the nf_tables kernel
components.

In order to get this compatibility layer working, I've done the
following things:

* add NFNL_SUBSYS_NFT_COMPAT: this new nfnetlink subsystem is used
to query the x_tables match/target revision, so we don't need to
use the native x_table getsockopt interface.

* emulate xt structures: this required extending the struct nft_pktinfo
to include the fragment offset, which is already obtained from
ip[6]_tables and that is used by some matches/targets.

* add support for default policy to base chains, required to emulate
  x_tables.

* add NFTA_CHAIN_USE attribute to obtain the number of references to
  chains, required by x_tables emulation.

* add chain packet/byte counters using per-cpu.

* support 32-64 bits compat.

For historical reasons, this patch includes the following patches
that were posted in the netfilter-devel mailing list.

From Pablo Neira Ayuso:
* nf_tables: add default policy to base chains
* netfilter: nf_tables: add NFTA_CHAIN_USE attribute
* nf_tables: nft_compat: private data of target and matches in contiguous area
* nf_tables: validate hooks for compat match/target
* nf_tables: nft_compat: release cached matches/targets
* nf_tables: x_tables support as a compile time option
* nf_tables: fix alias for xtables over nftables module
* nf_tables: add packet and byte counters per chain
* nf_tables: fix per-chain counter stats if no counters are passed
* nf_tables: don't bump chain stats
* nf_tables: add protocol and flags for xtables over nf_tables
* nf_tables: add ip[6]t_entry emulation
* nf_tables: move specific layer 3 compat code to nf_tables_ipv[4|6]
* nf_tables: support 32bits-64bits x_tables compat
* nf_tables: fix compilation if CONFIG_COMPAT is disabled

From Patrick McHardy:
* nf_tables: move policy to struct nft_base_chain
* nf_tables: send notifications for base chain policy changes

From Alexander Primak:
* nf_tables: remove the duplicate NF_INET_LOCAL_OUT

From Nicolas Dichtel:
* nf_tables: fix compilation when nf-netlink is a module

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/net/netfilter/nf_tables.h               |  44 +-
 include/net/netfilter/nf_tables_ipv4.h          |  23 +
 include/net/netfilter/nf_tables_ipv6.h          |  30 +
 include/uapi/linux/netfilter/Kbuild             |   1 +
 include/uapi/linux/netfilter/nf_tables.h        |  32 +
 include/uapi/linux/netfilter/nf_tables_compat.h |  38 ++
 include/uapi/linux/netfilter/nfnetlink.h        |   3 +-
 net/ipv4/netfilter/nf_tables_ipv4.c             |  32 +-
 net/ipv4/netfilter/nft_chain_nat_ipv4.c         |   6 +-
 net/ipv4/netfilter/nft_chain_route_ipv4.c       |   6 +-
 net/ipv6/netfilter/nf_tables_ipv6.c             |  33 +-
 net/ipv6/netfilter/nft_chain_route_ipv6.c       |   8 +-
 net/netfilter/Kconfig                           |   9 +
 net/netfilter/Makefile                          |   1 +
 net/netfilter/nf_tables_api.c                   | 220 ++++++-
 net/netfilter/nf_tables_core.c                  |  46 +-
 net/netfilter/nft_cmp.c                         |   3 +-
 net/netfilter/nft_compat.c                      | 768 ++++++++++++++++++++++++
 net/netfilter/nft_immediate.c                   |  12 +-
 net/netfilter/nft_payload.c                     |   4 +-
 20 files changed, 1241 insertions(+), 78 deletions(-)
 create mode 100644 include/net/netfilter/nf_tables_ipv4.h
 create mode 100644 include/net/netfilter/nf_tables_ipv6.h
 create mode 100644 include/uapi/linux/netfilter/nf_tables_compat.h
 create mode 100644 net/netfilter/nft_compat.c

diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index 8403f7f52e81..a68f45f0fe2e 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -3,6 +3,7 @@
 
 #include <linux/list.h>
 #include <linux/netfilter.h>
+#include <linux/netfilter/x_tables.h>
 #include <linux/netfilter/nf_tables.h>
 #include <net/netlink.h>
 
@@ -15,8 +16,23 @@ struct nft_pktinfo {
 	u8				hooknum;
 	u8				nhoff;
 	u8				thoff;
+	/* for x_tables compatibility */
+	struct xt_action_param		xt;
 };
 
+static inline void nft_set_pktinfo(struct nft_pktinfo *pkt,
+				   const struct nf_hook_ops *ops,
+				   struct sk_buff *skb,
+				   const struct net_device *in,
+				   const struct net_device *out)
+{
+	pkt->skb = skb;
+	pkt->in = pkt->xt.in = in;
+	pkt->out = pkt->xt.out = out;
+	pkt->hooknum = pkt->xt.hooknum = ops->hooknum;
+	pkt->xt.family = ops->pf;
+}
+
 struct nft_data {
 	union {
 		u32				data[4];
@@ -57,6 +73,7 @@ static inline void nft_data_debug(const struct nft_data *data)
  * 	@afi: address family info
  * 	@table: the table the chain is contained in
  * 	@chain: the chain the rule is contained in
+ *	@nla: netlink attributes
  */
 struct nft_ctx {
 	const struct sk_buff		*skb;
@@ -64,6 +81,7 @@ struct nft_ctx {
 	const struct nft_af_info	*afi;
 	const struct nft_table		*table;
 	const struct nft_chain		*chain;
+	const struct nlattr * const 	*nla;
 };
 
 struct nft_data_desc {
@@ -235,7 +253,8 @@ extern void nf_tables_unbind_set(const struct nft_ctx *ctx, struct nft_set *set,
  *	@maxattr: highest netlink attribute number
  */
 struct nft_expr_type {
-	const struct nft_expr_ops	*(*select_ops)(const struct nlattr * const tb[]);
+	const struct nft_expr_ops	*(*select_ops)(const struct nft_ctx *,
+						       const struct nlattr * const tb[]);
 	const struct nft_expr_ops	*ops;
 	struct list_head		list;
 	const char			*name;
@@ -253,6 +272,8 @@ struct nft_expr_type {
  *	@destroy: destruction function
  *	@dump: function to dump parameters
  *	@type: expression type
+ *	@validate: validate expression, called during loop detection
+ *	@data: extra data to attach to this expression operation
  */
 struct nft_expr;
 struct nft_expr_ops {
@@ -267,8 +288,11 @@ struct nft_expr_ops {
 	void				(*destroy)(const struct nft_expr *expr);
 	int				(*dump)(struct sk_buff *skb,
 						const struct nft_expr *expr);
-	const struct nft_data *		(*get_verdict)(const struct nft_expr *expr);
+	int				(*validate)(const struct nft_ctx *ctx,
+						    const struct nft_expr *expr,
+						    const struct nft_data **data);
 	const struct nft_expr_type	*type;
+	void				*data;
 };
 
 #define NFT_EXPR_MAXATTR		16
@@ -368,16 +392,25 @@ enum nft_chain_type {
 	NFT_CHAIN_T_MAX
 };
 
+struct nft_stats {
+	u64 bytes;
+	u64 pkts;
+};
+
 /**
  *	struct nft_base_chain - nf_tables base chain
  *
  *	@ops: netfilter hook ops
  *	@type: chain type
+ *	@policy: default policy
+ *	@stats: per-cpu chain stats
  *	@chain: the chain
  */
 struct nft_base_chain {
 	struct nf_hook_ops		ops;
 	enum nft_chain_type		type;
+	u8				policy;
+	struct nft_stats __percpu	*stats;
 	struct nft_chain		chain;
 };
 
@@ -386,11 +419,8 @@ static inline struct nft_base_chain *nft_base_chain(const struct nft_chain *chai
 	return container_of(chain, struct nft_base_chain, chain);
 }
 
-extern unsigned int nft_do_chain(const struct nf_hook_ops *ops,
-				 struct sk_buff *skb,
-				 const struct net_device *in,
-				 const struct net_device *out,
-				 int (*okfn)(struct sk_buff *));
+extern unsigned int nft_do_chain_pktinfo(struct nft_pktinfo *pkt,
+					 const struct nf_hook_ops *ops);
 
 /**
  *	struct nft_table - nf_tables table
diff --git a/include/net/netfilter/nf_tables_ipv4.h b/include/net/netfilter/nf_tables_ipv4.h
new file mode 100644
index 000000000000..1be1c2c197ee
--- /dev/null
+++ b/include/net/netfilter/nf_tables_ipv4.h
@@ -0,0 +1,23 @@
+#ifndef _NF_TABLES_IPV4_H_
+#define _NF_TABLES_IPV4_H_
+
+#include <net/netfilter/nf_tables.h>
+#include <net/ip.h>
+
+static inline void
+nft_set_pktinfo_ipv4(struct nft_pktinfo *pkt,
+		     const struct nf_hook_ops *ops,
+		     struct sk_buff *skb,
+		     const struct net_device *in,
+		     const struct net_device *out)
+{
+	struct iphdr *ip;
+
+	nft_set_pktinfo(pkt, ops, skb, in, out);
+
+	pkt->xt.thoff = ip_hdrlen(pkt->skb);
+	ip = ip_hdr(pkt->skb);
+	pkt->xt.fragoff = ntohs(ip->frag_off) & IP_OFFSET;
+}
+
+#endif
diff --git a/include/net/netfilter/nf_tables_ipv6.h b/include/net/netfilter/nf_tables_ipv6.h
new file mode 100644
index 000000000000..4a9b88a65963
--- /dev/null
+++ b/include/net/netfilter/nf_tables_ipv6.h
@@ -0,0 +1,30 @@
+#ifndef _NF_TABLES_IPV6_H_
+#define _NF_TABLES_IPV6_H_
+
+#include <linux/netfilter_ipv6/ip6_tables.h>
+#include <net/ipv6.h>
+
+static inline int
+nft_set_pktinfo_ipv6(struct nft_pktinfo *pkt,
+		     const struct nf_hook_ops *ops,
+		     struct sk_buff *skb,
+		     const struct net_device *in,
+		     const struct net_device *out)
+{
+	int protohdr, thoff = 0;
+	unsigned short frag_off;
+
+	nft_set_pktinfo(pkt, ops, skb, in, out);
+
+	protohdr = ipv6_find_hdr(pkt->skb, &thoff, -1, &frag_off, NULL);
+	/* If malformed, drop it */
+	if (protohdr < 0)
+		return -1;
+
+	pkt->xt.thoff = thoff;
+	pkt->xt.fragoff = frag_off;
+
+	return 0;
+}
+
+#endif
diff --git a/include/uapi/linux/netfilter/Kbuild b/include/uapi/linux/netfilter/Kbuild
index 6ce0b7f566a7..17c3af2c4bb9 100644
--- a/include/uapi/linux/netfilter/Kbuild
+++ b/include/uapi/linux/netfilter/Kbuild
@@ -6,6 +6,7 @@ header-y += nf_conntrack_sctp.h
 header-y += nf_conntrack_tcp.h
 header-y += nf_conntrack_tuple_common.h
 header-y += nf_tables.h
+header-y += nf_tables_compat.h
 header-y += nf_nat.h
 header-y += nfnetlink.h
 header-y += nfnetlink_acct.h
diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index 779cf951c8de..1563875e6942 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -115,7 +115,10 @@ enum nft_table_attributes {
  * @NFTA_CHAIN_HANDLE: numeric handle of the chain (NLA_U64)
  * @NFTA_CHAIN_NAME: name of the chain (NLA_STRING)
  * @NFTA_CHAIN_HOOK: hook specification for basechains (NLA_NESTED: nft_hook_attributes)
+ * @NFTA_CHAIN_POLICY: numeric policy of the chain (NLA_U32)
+ * @NFTA_CHAIN_USE: number of references to this chain (NLA_U32)
  * @NFTA_CHAIN_TYPE: type name of the string (NLA_NUL_STRING)
+ * @NFTA_CHAIN_COUNTERS: counter specification of the chain (NLA_NESTED: nft_counter_attributes)
  */
 enum nft_chain_attributes {
 	NFTA_CHAIN_UNSPEC,
@@ -123,7 +126,10 @@ enum nft_chain_attributes {
 	NFTA_CHAIN_HANDLE,
 	NFTA_CHAIN_NAME,
 	NFTA_CHAIN_HOOK,
+	NFTA_CHAIN_POLICY,
+	NFTA_CHAIN_USE,
 	NFTA_CHAIN_TYPE,
+	NFTA_CHAIN_COUNTERS,
 	__NFTA_CHAIN_MAX
 };
 #define NFTA_CHAIN_MAX		(__NFTA_CHAIN_MAX - 1)
@@ -135,6 +141,7 @@ enum nft_chain_attributes {
  * @NFTA_RULE_CHAIN: name of the chain containing the rule (NLA_STRING)
  * @NFTA_RULE_HANDLE: numeric handle of the rule (NLA_U64)
  * @NFTA_RULE_EXPRESSIONS: list of expressions (NLA_NESTED: nft_expr_attributes)
+ * @NFTA_RULE_COMPAT: compatibility specifications of the rule (NLA_NESTED: nft_rule_compat_attributes)
  */
 enum nft_rule_attributes {
 	NFTA_RULE_UNSPEC,
@@ -142,10 +149,35 @@ enum nft_rule_attributes {
 	NFTA_RULE_CHAIN,
 	NFTA_RULE_HANDLE,
 	NFTA_RULE_EXPRESSIONS,
+	NFTA_RULE_COMPAT,
 	__NFTA_RULE_MAX
 };
 #define NFTA_RULE_MAX		(__NFTA_RULE_MAX - 1)
 
+/**
+ * enum nft_rule_compat_flags - nf_tables rule compat flags
+ *
+ * @NFT_RULE_COMPAT_F_INV: invert the check result
+ */
+enum nft_rule_compat_flags {
+	NFT_RULE_COMPAT_F_INV	= (1 << 1),
+	NFT_RULE_COMPAT_F_MASK	= NFT_RULE_COMPAT_F_INV,
+};
+
+/**
+ * enum nft_rule_compat_attributes - nf_tables rule compat attributes
+ *
+ * @NFTA_RULE_COMPAT_PROTO: numerice value of handled protocol (NLA_U32)
+ * @NFTA_RULE_COMPAT_FLAGS: bitmask of enum nft_rule_compat_flags (NLA_U32)
+ */
+enum nft_rule_compat_attributes {
+	NFTA_RULE_COMPAT_UNSPEC,
+	NFTA_RULE_COMPAT_PROTO,
+	NFTA_RULE_COMPAT_FLAGS,
+	__NFTA_RULE_COMPAT_MAX
+};
+#define NFTA_RULE_COMPAT_MAX	(__NFTA_RULE_COMPAT_MAX - 1)
+
 /**
  * enum nft_set_flags - nf_tables set flags
  *
diff --git a/include/uapi/linux/netfilter/nf_tables_compat.h b/include/uapi/linux/netfilter/nf_tables_compat.h
new file mode 100644
index 000000000000..8310f5f76551
--- /dev/null
+++ b/include/uapi/linux/netfilter/nf_tables_compat.h
@@ -0,0 +1,38 @@
+#ifndef _NFT_COMPAT_NFNETLINK_H_
+#define _NFT_COMPAT_NFNETLINK_H_
+
+enum nft_target_attributes {
+	NFTA_TARGET_UNSPEC,
+	NFTA_TARGET_NAME,
+	NFTA_TARGET_REV,
+	NFTA_TARGET_INFO,
+	__NFTA_TARGET_MAX
+};
+#define NFTA_TARGET_MAX		(__NFTA_TARGET_MAX - 1)
+
+enum nft_match_attributes {
+	NFTA_MATCH_UNSPEC,
+	NFTA_MATCH_NAME,
+	NFTA_MATCH_REV,
+	NFTA_MATCH_INFO,
+	__NFTA_MATCH_MAX
+};
+#define NFTA_MATCH_MAX		(__NFTA_MATCH_MAX - 1)
+
+#define NFT_COMPAT_NAME_MAX	32
+
+enum {
+	NFNL_MSG_COMPAT_GET,
+	NFNL_MSG_COMPAT_MAX
+};
+
+enum {
+	NFTA_COMPAT_UNSPEC = 0,
+	NFTA_COMPAT_NAME,
+	NFTA_COMPAT_REV,
+	NFTA_COMPAT_TYPE,
+	__NFTA_COMPAT_MAX,
+};
+#define NFTA_COMPAT_MAX (__NFTA_COMPAT_MAX - 1)
+
+#endif
diff --git a/include/uapi/linux/netfilter/nfnetlink.h b/include/uapi/linux/netfilter/nfnetlink.h
index d276c3bd55b8..288959404d54 100644
--- a/include/uapi/linux/netfilter/nfnetlink.h
+++ b/include/uapi/linux/netfilter/nfnetlink.h
@@ -54,6 +54,7 @@ struct nfgenmsg {
 #define NFNL_SUBSYS_CTNETLINK_TIMEOUT	8
 #define NFNL_SUBSYS_CTHELPER		9
 #define NFNL_SUBSYS_NFTABLES		10
-#define NFNL_SUBSYS_COUNT		11
+#define NFNL_SUBSYS_NFT_COMPAT		11
+#define NFNL_SUBSYS_COUNT		12
 
 #endif /* _UAPI_NFNETLINK_H */
diff --git a/net/ipv4/netfilter/nf_tables_ipv4.c b/net/ipv4/netfilter/nf_tables_ipv4.c
index 23525c4c0192..c61cffb9b760 100644
--- a/net/ipv4/netfilter/nf_tables_ipv4.c
+++ b/net/ipv4/netfilter/nf_tables_ipv4.c
@@ -15,6 +15,8 @@
 #include <linux/netfilter_ipv4.h>
 #include <net/netfilter/nf_tables.h>
 #include <net/ip.h>
+#include <net/net_namespace.h>
+#include <net/netfilter/nf_tables_ipv4.h>
 
 static unsigned int nft_ipv4_output(const struct nf_hook_ops *ops,
 				    struct sk_buff *skb,
@@ -22,6 +24,8 @@ static unsigned int nft_ipv4_output(const struct nf_hook_ops *ops,
 				    const struct net_device *out,
 				    int (*okfn)(struct sk_buff *))
 {
+	struct nft_pktinfo pkt;
+
 	if (unlikely(skb->len < sizeof(struct iphdr) ||
 		     ip_hdr(skb)->ihl < sizeof(struct iphdr) / 4)) {
 		if (net_ratelimit())
@@ -29,8 +33,9 @@ static unsigned int nft_ipv4_output(const struct nf_hook_ops *ops,
 				"packet\n");
 		return NF_ACCEPT;
 	}
+	nft_set_pktinfo_ipv4(&pkt, ops, skb, in, out);
 
-	return nft_do_chain(ops, skb, in, out, okfn);
+	return nft_do_chain_pktinfo(&pkt, ops);
 }
 
 static struct nft_af_info nft_af_ipv4 __read_mostly = {
@@ -42,6 +47,21 @@ static struct nft_af_info nft_af_ipv4 __read_mostly = {
 	},
 };
 
+
+static unsigned int
+nft_do_chain_ipv4(const struct nf_hook_ops *ops,
+		  struct sk_buff *skb,
+		  const struct net_device *in,
+		  const struct net_device *out,
+		  int (*okfn)(struct sk_buff *))
+{
+	struct nft_pktinfo pkt;
+
+	nft_set_pktinfo_ipv4(&pkt, ops, skb, in, out);
+
+	return nft_do_chain_pktinfo(&pkt, ops);
+}
+
 static struct nf_chain_type filter_ipv4 = {
 	.family		= NFPROTO_IPV4,
 	.name		= "filter",
@@ -52,11 +72,11 @@ static struct nf_chain_type filter_ipv4 = {
 			  (1 << NF_INET_PRE_ROUTING) |
 			  (1 << NF_INET_POST_ROUTING),
 	.fn		= {
-		[NF_INET_LOCAL_IN]	= nft_do_chain,
-		[NF_INET_LOCAL_OUT]	= nft_do_chain,
-		[NF_INET_FORWARD]	= nft_do_chain,
-		[NF_INET_PRE_ROUTING]	= nft_do_chain,
-		[NF_INET_POST_ROUTING]	= nft_do_chain,
+		[NF_INET_LOCAL_IN]	= nft_do_chain_ipv4,
+		[NF_INET_LOCAL_OUT]	= nft_ipv4_output,
+		[NF_INET_FORWARD]	= nft_do_chain_ipv4,
+		[NF_INET_PRE_ROUTING]	= nft_do_chain_ipv4,
+		[NF_INET_POST_ROUTING]	= nft_do_chain_ipv4,
 	},
 };
 
diff --git a/net/ipv4/netfilter/nft_chain_nat_ipv4.c b/net/ipv4/netfilter/nft_chain_nat_ipv4.c
index cd286306be85..e09c201adf84 100644
--- a/net/ipv4/netfilter/nft_chain_nat_ipv4.c
+++ b/net/ipv4/netfilter/nft_chain_nat_ipv4.c
@@ -23,6 +23,7 @@
 #include <net/netfilter/nf_nat.h>
 #include <net/netfilter/nf_nat_core.h>
 #include <net/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables_ipv4.h>
 #include <net/netfilter/nf_nat_l3proto.h>
 #include <net/ip.h>
 
@@ -181,6 +182,7 @@ static unsigned int nf_nat_fn(const struct nf_hook_ops *ops,
 	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
 	struct nf_conn_nat *nat;
 	enum nf_nat_manip_type maniptype = HOOK2MANIP(ops->hooknum);
+	struct nft_pktinfo pkt;
 	unsigned int ret;
 
 	if (ct == NULL || nf_ct_is_untracked(ct))
@@ -213,7 +215,9 @@ static unsigned int nf_nat_fn(const struct nf_hook_ops *ops,
 		if (nf_nat_initialized(ct, maniptype))
 			break;
 
-		ret = nft_do_chain(ops, skb, in, out, okfn);
+		nft_set_pktinfo_ipv4(&pkt, ops, skb, in, out);
+
+		ret = nft_do_chain_pktinfo(&pkt, ops);
 		if (ret != NF_ACCEPT)
 			return ret;
 		if (!nf_nat_initialized(ct, maniptype)) {
diff --git a/net/ipv4/netfilter/nft_chain_route_ipv4.c b/net/ipv4/netfilter/nft_chain_route_ipv4.c
index 6b84e097b8fc..4e6bf9a3d7aa 100644
--- a/net/ipv4/netfilter/nft_chain_route_ipv4.c
+++ b/net/ipv4/netfilter/nft_chain_route_ipv4.c
@@ -17,6 +17,7 @@
 #include <linux/netfilter/nfnetlink.h>
 #include <linux/netfilter/nf_tables.h>
 #include <net/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables_ipv4.h>
 #include <net/route.h>
 #include <net/ip.h>
 
@@ -27,6 +28,7 @@ static unsigned int nf_route_table_hook(const struct nf_hook_ops *ops,
 					int (*okfn)(struct sk_buff *))
 {
 	unsigned int ret;
+	struct nft_pktinfo pkt;
 	u32 mark;
 	__be32 saddr, daddr;
 	u_int8_t tos;
@@ -37,13 +39,15 @@ static unsigned int nf_route_table_hook(const struct nf_hook_ops *ops,
 	    ip_hdrlen(skb) < sizeof(struct iphdr))
 		return NF_ACCEPT;
 
+	nft_set_pktinfo_ipv4(&pkt, ops, skb, in, out);
+
 	mark = skb->mark;
 	iph = ip_hdr(skb);
 	saddr = iph->saddr;
 	daddr = iph->daddr;
 	tos = iph->tos;
 
-	ret = nft_do_chain(ops, skb, in, out, okfn);
+	ret = nft_do_chain_pktinfo(&pkt, ops);
 	if (ret != NF_DROP && ret != NF_QUEUE) {
 		iph = ip_hdr(skb);
 
diff --git a/net/ipv6/netfilter/nf_tables_ipv6.c b/net/ipv6/netfilter/nf_tables_ipv6.c
index 3631d6238e6f..42f905a808a3 100644
--- a/net/ipv6/netfilter/nf_tables_ipv6.c
+++ b/net/ipv6/netfilter/nf_tables_ipv6.c
@@ -14,6 +14,7 @@
 #include <linux/ipv6.h>
 #include <linux/netfilter_ipv6.h>
 #include <net/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables_ipv6.h>
 
 static unsigned int nft_ipv6_output(const struct nf_hook_ops *ops,
 				    struct sk_buff *skb,
@@ -21,14 +22,18 @@ static unsigned int nft_ipv6_output(const struct nf_hook_ops *ops,
 				    const struct net_device *out,
 				    int (*okfn)(struct sk_buff *))
 {
+	struct nft_pktinfo pkt;
+
 	if (unlikely(skb->len < sizeof(struct ipv6hdr))) {
 		if (net_ratelimit())
 			pr_info("nf_tables_ipv6: ignoring short SOCK_RAW "
 				"packet\n");
 		return NF_ACCEPT;
 	}
+	if (nft_set_pktinfo_ipv6(&pkt, ops, skb, in, out) < 0)
+		return NF_DROP;
 
-	return nft_do_chain(ops, skb, in, out, okfn);
+	return nft_do_chain_pktinfo(&pkt, ops);
 }
 
 static struct nft_af_info nft_af_ipv6 __read_mostly = {
@@ -40,6 +45,22 @@ static struct nft_af_info nft_af_ipv6 __read_mostly = {
 	},
 };
 
+static unsigned int
+nft_do_chain_ipv6(const struct nf_hook_ops *ops,
+		  struct sk_buff *skb,
+		  const struct net_device *in,
+		  const struct net_device *out,
+		  int (*okfn)(struct sk_buff *))
+{
+	struct nft_pktinfo pkt;
+
+	/* malformed packet, drop it */
+	if (nft_set_pktinfo_ipv6(&pkt, ops, skb, in, out) < 0)
+		return NF_DROP;
+
+	return nft_do_chain_pktinfo(&pkt, ops);
+}
+
 static struct nf_chain_type filter_ipv6 = {
 	.family		= NFPROTO_IPV6,
 	.name		= "filter",
@@ -50,11 +71,11 @@ static struct nf_chain_type filter_ipv6 = {
 			  (1 << NF_INET_PRE_ROUTING) |
 			  (1 << NF_INET_POST_ROUTING),
 	.fn		= {
-		[NF_INET_LOCAL_IN]	= nft_do_chain,
-		[NF_INET_LOCAL_OUT]	= nft_do_chain,
-		[NF_INET_FORWARD]	= nft_do_chain,
-		[NF_INET_PRE_ROUTING]	= nft_do_chain,
-		[NF_INET_POST_ROUTING]	= nft_do_chain,
+		[NF_INET_LOCAL_IN]	= nft_do_chain_ipv6,
+		[NF_INET_LOCAL_OUT]	= nft_ipv6_output,
+		[NF_INET_FORWARD]	= nft_do_chain_ipv6,
+		[NF_INET_PRE_ROUTING]	= nft_do_chain_ipv6,
+		[NF_INET_POST_ROUTING]	= nft_do_chain_ipv6,
 	},
 };
 
diff --git a/net/ipv6/netfilter/nft_chain_route_ipv6.c b/net/ipv6/netfilter/nft_chain_route_ipv6.c
index 4cdc992fa067..3fe40f0456ad 100644
--- a/net/ipv6/netfilter/nft_chain_route_ipv6.c
+++ b/net/ipv6/netfilter/nft_chain_route_ipv6.c
@@ -19,6 +19,7 @@
 #include <linux/netfilter/nfnetlink.h>
 #include <linux/netfilter/nf_tables.h>
 #include <net/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables_ipv6.h>
 #include <net/route.h>
 
 static unsigned int nf_route_table_hook(const struct nf_hook_ops *ops,
@@ -28,10 +29,15 @@ static unsigned int nf_route_table_hook(const struct nf_hook_ops *ops,
 					int (*okfn)(struct sk_buff *))
 {
 	unsigned int ret;
+	struct nft_pktinfo pkt;
 	struct in6_addr saddr, daddr;
 	u_int8_t hop_limit;
 	u32 mark, flowlabel;
 
+	/* malformed packet, drop it */
+	if (nft_set_pktinfo_ipv6(&pkt, ops, skb, in, out) < 0)
+		return NF_DROP;
+
 	/* save source/dest address, mark, hoplimit, flowlabel, priority */
 	memcpy(&saddr, &ipv6_hdr(skb)->saddr, sizeof(saddr));
 	memcpy(&daddr, &ipv6_hdr(skb)->daddr, sizeof(daddr));
@@ -41,7 +47,7 @@ static unsigned int nf_route_table_hook(const struct nf_hook_ops *ops,
 	/* flowlabel and prio (includes version, which shouldn't change either */
 	flowlabel = *((u32 *)ipv6_hdr(skb));
 
-	ret = nft_do_chain(ops, skb, in, out, okfn);
+	ret = nft_do_chain_pktinfo(&pkt, ops);
 	if (ret != NF_DROP && ret != NF_QUEUE &&
 	    (memcmp(&ipv6_hdr(skb)->saddr, &saddr, sizeof(saddr)) ||
 	     memcmp(&ipv6_hdr(skb)->daddr, &daddr, sizeof(daddr)) ||
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index aa184a46bbf3..49e362707379 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -450,6 +450,15 @@ config NFT_LIMIT
 	depends on NF_TABLES
 	tristate "Netfilter nf_tables limit module"
 
+config NFT_COMPAT
+	depends on NF_TABLES
+	depends on NETFILTER_XTABLES
+	tristate "Netfilter x_tables over nf_tables module"
+	help
+	  This is required if you intend to use any of existing
+	  x_tables match/target extensions over the nf_tables
+	  framework.
+
 config NETFILTER_XTABLES
 	tristate "Netfilter Xtables support (required for ip_tables)"
 	default m if NETFILTER_ADVANCED=n
diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
index b6b78754e4cc..a6781450b6fb 100644
--- a/net/netfilter/Makefile
+++ b/net/netfilter/Makefile
@@ -70,6 +70,7 @@ nf_tables-objs += nft_immediate.o nft_cmp.o nft_lookup.o
 nf_tables-objs += nft_bitwise.o nft_byteorder.o nft_payload.o
 
 obj-$(CONFIG_NF_TABLES)		+= nf_tables.o
+obj-$(CONFIG_NFT_COMPAT)	+= nft_compat.o
 obj-$(CONFIG_NFT_EXTHDR)	+= nft_exthdr.o
 obj-$(CONFIG_NFT_META)		+= nft_meta.o
 obj-$(CONFIG_NFT_CT)		+= nft_ct.o
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 9c2d8d5af843..61e017b349cb 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -438,7 +438,9 @@ static const struct nla_policy nft_chain_policy[NFTA_CHAIN_MAX + 1] = {
 	[NFTA_CHAIN_NAME]	= { .type = NLA_STRING,
 				    .len = NFT_CHAIN_MAXNAMELEN - 1 },
 	[NFTA_CHAIN_HOOK]	= { .type = NLA_NESTED },
+	[NFTA_CHAIN_POLICY]	= { .type = NLA_U32 },
 	[NFTA_CHAIN_TYPE]	= { .type = NLA_NUL_STRING },
+	[NFTA_CHAIN_COUNTERS]	= { .type = NLA_NESTED },
 };
 
 static const struct nla_policy nft_hook_policy[NFTA_HOOK_MAX + 1] = {
@@ -446,6 +448,33 @@ static const struct nla_policy nft_hook_policy[NFTA_HOOK_MAX + 1] = {
 	[NFTA_HOOK_PRIORITY]	= { .type = NLA_U32 },
 };
 
+static int nft_dump_stats(struct sk_buff *skb, struct nft_stats __percpu *stats)
+{
+	struct nft_stats *cpu_stats, total;
+	struct nlattr *nest;
+	int cpu;
+
+	memset(&total, 0, sizeof(total));
+	for_each_possible_cpu(cpu) {
+		cpu_stats = per_cpu_ptr(stats, cpu);
+		total.pkts += cpu_stats->pkts;
+		total.bytes += cpu_stats->bytes;
+	}
+	nest = nla_nest_start(skb, NFTA_CHAIN_COUNTERS);
+	if (nest == NULL)
+		goto nla_put_failure;
+
+	if (nla_put_be64(skb, NFTA_COUNTER_PACKETS, cpu_to_be64(total.pkts)) ||
+	    nla_put_be64(skb, NFTA_COUNTER_BYTES, cpu_to_be64(total.bytes)))
+		goto nla_put_failure;
+
+	nla_nest_end(skb, nest);
+	return 0;
+
+nla_put_failure:
+	return -ENOSPC;
+}
+
 static int nf_tables_fill_chain_info(struct sk_buff *skb, u32 portid, u32 seq,
 				     int event, u32 flags, int family,
 				     const struct nft_table *table,
@@ -472,8 +501,11 @@ static int nf_tables_fill_chain_info(struct sk_buff *skb, u32 portid, u32 seq,
 		goto nla_put_failure;
 
 	if (chain->flags & NFT_BASE_CHAIN) {
-		const struct nf_hook_ops *ops = &nft_base_chain(chain)->ops;
-		struct nlattr *nest = nla_nest_start(skb, NFTA_CHAIN_HOOK);
+		const struct nft_base_chain *basechain = nft_base_chain(chain);
+		const struct nf_hook_ops *ops = &basechain->ops;
+		struct nlattr *nest;
+
+		nest = nla_nest_start(skb, NFTA_CHAIN_HOOK);
 		if (nest == NULL)
 			goto nla_put_failure;
 		if (nla_put_be32(skb, NFTA_HOOK_HOOKNUM, htonl(ops->hooknum)))
@@ -482,11 +514,21 @@ static int nf_tables_fill_chain_info(struct sk_buff *skb, u32 portid, u32 seq,
 			goto nla_put_failure;
 		nla_nest_end(skb, nest);
 
+		if (nla_put_be32(skb, NFTA_CHAIN_POLICY,
+				 htonl(basechain->policy)))
+			goto nla_put_failure;
+
 		if (nla_put_string(skb, NFTA_CHAIN_TYPE,
 			chain_type[ops->pf][nft_base_chain(chain)->type]->name))
 				goto nla_put_failure;
+
+		if (nft_dump_stats(skb, nft_base_chain(chain)->stats))
+			goto nla_put_failure;
 	}
 
+	if (nla_put_be32(skb, NFTA_CHAIN_USE, htonl(chain->use)))
+		goto nla_put_failure;
+
 	return nlmsg_end(skb, nlh);
 
 nla_put_failure:
@@ -617,6 +659,67 @@ err:
 	return err;
 }
 
+static int
+nf_tables_chain_policy(struct nft_base_chain *chain, const struct nlattr *attr)
+{
+	switch (ntohl(nla_get_be32(attr))) {
+	case NF_DROP:
+		chain->policy = NF_DROP;
+		break;
+	case NF_ACCEPT:
+		chain->policy = NF_ACCEPT;
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static const struct nla_policy nft_counter_policy[NFTA_COUNTER_MAX + 1] = {
+	[NFTA_COUNTER_PACKETS]	= { .type = NLA_U64 },
+	[NFTA_COUNTER_BYTES]	= { .type = NLA_U64 },
+};
+
+static int
+nf_tables_counters(struct nft_base_chain *chain, const struct nlattr *attr)
+{
+	struct nlattr *tb[NFTA_COUNTER_MAX+1];
+	struct nft_stats __percpu *newstats;
+	struct nft_stats *stats;
+	int err;
+
+	err = nla_parse_nested(tb, NFTA_COUNTER_MAX, attr, nft_counter_policy);
+	if (err < 0)
+		return err;
+
+	if (!tb[NFTA_COUNTER_BYTES] || !tb[NFTA_COUNTER_PACKETS])
+		return -EINVAL;
+
+	newstats = alloc_percpu(struct nft_stats);
+	if (newstats == NULL)
+		return -ENOMEM;
+
+	/* Restore old counters on this cpu, no problem. Per-cpu statistics
+	 * are not exposed to userspace.
+	 */
+	stats = this_cpu_ptr(newstats);
+	stats->bytes = be64_to_cpu(nla_get_be64(tb[NFTA_COUNTER_BYTES]));
+	stats->pkts = be64_to_cpu(nla_get_be64(tb[NFTA_COUNTER_PACKETS]));
+
+	if (chain->stats) {
+		/* nfnl_lock is held, add some nfnl function for this, later */
+		struct nft_stats __percpu *oldstats =
+			rcu_dereference_protected(chain->stats, 1);
+
+		rcu_assign_pointer(chain->stats, newstats);
+		synchronize_rcu();
+		free_percpu(oldstats);
+	} else
+		rcu_assign_pointer(chain->stats, newstats);
+
+	return 0;
+}
+
 static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
 			      const struct nlmsghdr *nlh,
 			      const struct nlattr * const nla[])
@@ -626,7 +729,7 @@ static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
 	const struct nft_af_info *afi;
 	struct nft_table *table;
 	struct nft_chain *chain;
-	struct nft_base_chain *basechain;
+	struct nft_base_chain *basechain = NULL;
 	struct nlattr *ha[NFTA_HOOK_MAX + 1];
 	int family = nfmsg->nfgen_family;
 	u64 handle = 0;
@@ -673,6 +776,26 @@ static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
 		    !IS_ERR(nf_tables_chain_lookup(table, nla[NFTA_CHAIN_NAME])))
 			return -EEXIST;
 
+		if (nla[NFTA_CHAIN_POLICY]) {
+			if (!(chain->flags & NFT_BASE_CHAIN))
+				return -EOPNOTSUPP;
+
+			err = nf_tables_chain_policy(nft_base_chain(chain),
+						     nla[NFTA_CHAIN_POLICY]);
+			if (err < 0)
+				return err;
+		}
+
+		if (nla[NFTA_CHAIN_COUNTERS]) {
+			if (!(chain->flags & NFT_BASE_CHAIN))
+				return -EOPNOTSUPP;
+
+			err = nf_tables_counters(nft_base_chain(chain),
+						 nla[NFTA_CHAIN_COUNTERS]);
+			if (err < 0)
+				return err;
+		}
+
 		if (nla[NFTA_CHAIN_HANDLE] && name)
 			nla_strlcpy(chain->name, name, NFT_CHAIN_MAXNAMELEN);
 
@@ -727,6 +850,36 @@ static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
 			ops->hook = afi->hooks[ops->hooknum];
 
 		chain->flags |= NFT_BASE_CHAIN;
+
+		if (nla[NFTA_CHAIN_POLICY]) {
+			err = nf_tables_chain_policy(basechain,
+						     nla[NFTA_CHAIN_POLICY]);
+			if (err < 0) {
+				free_percpu(basechain->stats);
+				kfree(basechain);
+				return err;
+			}
+		} else
+			basechain->policy = NF_ACCEPT;
+
+		if (nla[NFTA_CHAIN_COUNTERS]) {
+			err = nf_tables_counters(basechain,
+						 nla[NFTA_CHAIN_COUNTERS]);
+			if (err < 0) {
+				free_percpu(basechain->stats);
+				kfree(basechain);
+				return err;
+			}
+		} else {
+			struct nft_stats __percpu *newstats;
+
+			newstats = alloc_percpu(struct nft_stats);
+			if (newstats == NULL)
+				return -ENOMEM;
+
+			rcu_assign_pointer(nft_base_chain(chain)->stats,
+					   newstats);
+		}
 	} else {
 		chain = kzalloc(sizeof(*chain), GFP_KERNEL);
 		if (chain == NULL)
@@ -739,6 +892,15 @@ static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
 
 	list_add_tail(&chain->list, &table->chains);
 	table->use++;
+
+	if (chain->flags & NFT_BASE_CHAIN) {
+		err = nf_register_hook(&nft_base_chain(chain)->ops);
+		if (err < 0) {
+			free_percpu(basechain->stats);
+			kfree(basechain);
+			return err;
+		}
+	}
 notify:
 	nf_tables_chain_notify(skb, nlh, table, chain, NFT_MSG_NEWCHAIN,
 			       family);
@@ -751,9 +913,10 @@ static void nf_tables_rcu_chain_destroy(struct rcu_head *head)
 
 	BUG_ON(chain->use > 0);
 
-	if (chain->flags & NFT_BASE_CHAIN)
+	if (chain->flags & NFT_BASE_CHAIN) {
+		free_percpu(nft_base_chain(chain)->stats);
 		kfree(nft_base_chain(chain));
-	else
+	} else
 		kfree(chain);
 }
 
@@ -801,13 +964,15 @@ static void nft_ctx_init(struct nft_ctx *ctx,
 			 const struct nlmsghdr *nlh,
 			 const struct nft_af_info *afi,
 			 const struct nft_table *table,
-			 const struct nft_chain *chain)
+			 const struct nft_chain *chain,
+			 const struct nlattr * const *nla)
 {
 	ctx->skb   = skb;
 	ctx->nlh   = nlh;
 	ctx->afi   = afi;
 	ctx->table = table;
 	ctx->chain = chain;
+	ctx->nla   = nla;
 }
 
 /*
@@ -910,7 +1075,8 @@ struct nft_expr_info {
 	struct nlattr			*tb[NFT_EXPR_MAXATTR + 1];
 };
 
-static int nf_tables_expr_parse(const struct nlattr *nla,
+static int nf_tables_expr_parse(const struct nft_ctx *ctx,
+				const struct nlattr *nla,
 				struct nft_expr_info *info)
 {
 	const struct nft_expr_type *type;
@@ -935,7 +1101,8 @@ static int nf_tables_expr_parse(const struct nlattr *nla,
 		memset(info->tb, 0, sizeof(info->tb[0]) * (type->maxattr + 1));
 
 	if (type->select_ops != NULL) {
-		ops = type->select_ops((const struct nlattr * const *)info->tb);
+		ops = type->select_ops(ctx,
+				       (const struct nlattr * const *)info->tb);
 		if (IS_ERR(ops)) {
 			err = PTR_ERR(ops);
 			goto err1;
@@ -1012,6 +1179,7 @@ static const struct nla_policy nft_rule_policy[NFTA_RULE_MAX + 1] = {
 				    .len = NFT_CHAIN_MAXNAMELEN - 1 },
 	[NFTA_RULE_HANDLE]	= { .type = NLA_U64 },
 	[NFTA_RULE_EXPRESSIONS]	= { .type = NLA_NESTED },
+	[NFTA_RULE_COMPAT]	= { .type = NLA_NESTED },
 };
 
 static int nf_tables_fill_rule_info(struct sk_buff *skb, u32 portid, u32 seq,
@@ -1269,6 +1437,8 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 		handle = nf_tables_alloc_handle(table);
 	}
 
+	nft_ctx_init(&ctx, skb, nlh, afi, table, chain, nla);
+
 	n = 0;
 	size = 0;
 	if (nla[NFTA_RULE_EXPRESSIONS]) {
@@ -1278,7 +1448,7 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 				goto err1;
 			if (n == NFT_RULE_MAXEXPRS)
 				goto err1;
-			err = nf_tables_expr_parse(tmp, &info[n]);
+			err = nf_tables_expr_parse(&ctx, tmp, &info[n]);
 			if (err < 0)
 				goto err1;
 			size += info[n].ops->size;
@@ -1294,7 +1464,6 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 	rule->handle = handle;
 	rule->dlen   = size;
 
-	nft_ctx_init(&ctx, skb, nlh, afi, table, chain);
 	expr = nft_expr_first(rule);
 	for (i = 0; i < n; i++) {
 		err = nf_tables_newexpr(&ctx, &info[i], expr);
@@ -1304,13 +1473,6 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 		expr = nft_expr_next(expr);
 	}
 
-	/* Register hook when first rule is inserted into a base chain */
-	if (list_empty(&chain->rules) && chain->flags & NFT_BASE_CHAIN) {
-		err = nf_register_hook(&nft_base_chain(chain)->ops);
-		if (err < 0)
-			goto err2;
-	}
-
 	if (nlh->nlmsg_flags & NLM_F_REPLACE) {
 		list_replace_rcu(&old_rule->list, &rule->list);
 		nf_tables_rule_destroy(old_rule);
@@ -1379,10 +1541,6 @@ static int nf_tables_delrule(struct sock *nlsk, struct sk_buff *skb,
 		}
 	}
 
-	/* Unregister hook when last rule from base chain is deleted */
-	if (list_empty(&chain->rules) && chain->flags & NFT_BASE_CHAIN)
-		nf_unregister_hook(&nft_base_chain(chain)->ops);
-
 	return 0;
 }
 
@@ -1470,7 +1628,7 @@ static int nft_ctx_init_from_setattr(struct nft_ctx *ctx,
 			return PTR_ERR(table);
 	}
 
-	nft_ctx_init(ctx, skb, nlh, afi, table, NULL);
+	nft_ctx_init(ctx, skb, nlh, afi, table, NULL, nla);
 	return 0;
 }
 
@@ -1799,7 +1957,7 @@ static int nf_tables_newset(struct sock *nlsk, struct sk_buff *skb,
 	if (IS_ERR(table))
 		return PTR_ERR(table);
 
-	nft_ctx_init(&ctx, skb, nlh, afi, table, NULL);
+	nft_ctx_init(&ctx, skb, nlh, afi, table, NULL, nla);
 
 	set = nf_tables_set_lookup(table, nla[NFTA_SET_NAME]);
 	if (IS_ERR(set)) {
@@ -1987,7 +2145,7 @@ static int nft_ctx_init_from_elemattr(struct nft_ctx *ctx,
 	if (IS_ERR(table))
 		return PTR_ERR(table);
 
-	nft_ctx_init(ctx, skb, nlh, afi, table, NULL);
+	nft_ctx_init(ctx, skb, nlh, afi, table, NULL, nla);
 	return 0;
 }
 
@@ -2435,23 +2593,27 @@ static int nf_tables_check_loops(const struct nft_ctx *ctx,
 {
 	const struct nft_rule *rule;
 	const struct nft_expr *expr, *last;
-	const struct nft_data *data;
 	const struct nft_set *set;
 	struct nft_set_binding *binding;
 	struct nft_set_iter iter;
-	int err;
 
 	if (ctx->chain == chain)
 		return -ELOOP;
 
 	list_for_each_entry(rule, &chain->rules, list) {
 		nft_rule_for_each_expr(expr, last, rule) {
-			if (!expr->ops->get_verdict)
+			const struct nft_data *data = NULL;
+			int err;
+
+			if (!expr->ops->validate)
 				continue;
 
-			data = expr->ops->get_verdict(expr);
+			err = expr->ops->validate(ctx, expr, &data);
+			if (err < 0)
+				return err;
+
 			if (data == NULL)
-				break;
+				continue;
 
 			switch (data->verdict) {
 			case NFT_JUMP:
diff --git a/net/netfilter/nf_tables_core.c b/net/netfilter/nf_tables_core.c
index 9aede59ed2d7..e51a45c12128 100644
--- a/net/netfilter/nf_tables_core.c
+++ b/net/netfilter/nf_tables_core.c
@@ -60,27 +60,34 @@ static bool nft_payload_fast_eval(const struct nft_expr *expr,
 	return true;
 }
 
-unsigned int nft_do_chain(const struct nf_hook_ops *ops,
-			  struct sk_buff *skb,
-			  const struct net_device *in,
-			  const struct net_device *out,
-			  int (*okfn)(struct sk_buff *))
+struct nft_jumpstack {
+	const struct nft_chain	*chain;
+	const struct nft_rule	*rule;
+};
+
+static inline void
+nft_chain_stats(const struct nft_chain *this, const struct nft_pktinfo *pkt,
+		struct nft_jumpstack *jumpstack, unsigned int stackptr)
+{
+	struct nft_stats __percpu *stats;
+	const struct nft_chain *chain = stackptr ? jumpstack[0].chain : this;
+
+	rcu_read_lock_bh();
+	stats = rcu_dereference(nft_base_chain(chain)->stats);
+	__this_cpu_inc(stats->pkts);
+	__this_cpu_add(stats->bytes, pkt->skb->len);
+	rcu_read_unlock_bh();
+}
+
+unsigned int
+nft_do_chain_pktinfo(struct nft_pktinfo *pkt, const struct nf_hook_ops *ops)
 {
 	const struct nft_chain *chain = ops->priv;
 	const struct nft_rule *rule;
 	const struct nft_expr *expr, *last;
 	struct nft_data data[NFT_REG_MAX + 1];
-	const struct nft_pktinfo pkt = {
-		.skb		= skb,
-		.in		= in,
-		.out		= out,
-		.hooknum	= ops->hooknum,
-	};
 	unsigned int stackptr = 0;
-	struct {
-		const struct nft_chain	*chain;
-		const struct nft_rule	*rule;
-	} jumpstack[NFT_JUMP_STACK_SIZE];
+	struct nft_jumpstack jumpstack[NFT_JUMP_STACK_SIZE];
 
 do_chain:
 	rule = list_entry(&chain->rules, struct nft_rule, list);
@@ -91,8 +98,8 @@ next_rule:
 			if (expr->ops == &nft_cmp_fast_ops)
 				nft_cmp_fast_eval(expr, data);
 			else if (expr->ops != &nft_payload_fast_ops ||
-				 !nft_payload_fast_eval(expr, data, &pkt))
-				expr->ops->eval(expr, data, &pkt);
+				 !nft_payload_fast_eval(expr, data, pkt))
+				expr->ops->eval(expr, data, pkt);
 
 			if (data[NFT_REG_VERDICT].verdict != NFT_CONTINUE)
 				break;
@@ -135,10 +142,11 @@ next_rule:
 		rule  = jumpstack[stackptr].rule;
 		goto next_rule;
 	}
+	nft_chain_stats(chain, pkt, jumpstack, stackptr);
 
-	return NF_ACCEPT;
+	return nft_base_chain(chain)->policy;
 }
-EXPORT_SYMBOL_GPL(nft_do_chain);
+EXPORT_SYMBOL_GPL(nft_do_chain_pktinfo);
 
 int __init nf_tables_core_module_init(void)
 {
diff --git a/net/netfilter/nft_cmp.c b/net/netfilter/nft_cmp.c
index 37134f3e84fb..954925db414d 100644
--- a/net/netfilter/nft_cmp.c
+++ b/net/netfilter/nft_cmp.c
@@ -162,7 +162,8 @@ const struct nft_expr_ops nft_cmp_fast_ops = {
 	.dump		= nft_cmp_fast_dump,
 };
 
-static const struct nft_expr_ops *nft_cmp_select_ops(const struct nlattr * const tb[])
+static const struct nft_expr_ops *
+nft_cmp_select_ops(const struct nft_ctx *ctx, const struct nlattr * const tb[])
 {
 	struct nft_data_desc desc;
 	struct nft_data data;
diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c
new file mode 100644
index 000000000000..4811f762e060
--- /dev/null
+++ b/net/netfilter/nft_compat.c
@@ -0,0 +1,768 @@
+/*
+ * (C) 2012-2013 by Pablo Neira Ayuso <pablo@netfilter.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This software has been sponsored by Sophos Astaro <http://www.sophos.com>
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netfilter/nf_tables.h>
+#include <linux/netfilter/nf_tables_compat.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/netfilter_ipv6/ip6_tables.h>
+#include <asm/uaccess.h> /* for set_fs */
+#include <net/netfilter/nf_tables.h>
+
+union nft_entry {
+	struct ipt_entry e4;
+	struct ip6t_entry e6;
+};
+
+static inline void
+nft_compat_set_par(struct xt_action_param *par, void *xt, const void *xt_info)
+{
+	par->target	= xt;
+	par->targinfo	= xt_info;
+	par->hotdrop	= false;
+}
+
+static void nft_target_eval(const struct nft_expr *expr,
+			    struct nft_data data[NFT_REG_MAX + 1],
+			    const struct nft_pktinfo *pkt)
+{
+	void *info = nft_expr_priv(expr);
+	struct xt_target *target = expr->ops->data;
+	struct sk_buff *skb = pkt->skb;
+	int ret;
+
+	nft_compat_set_par((struct xt_action_param *)&pkt->xt, target, info);
+
+	ret = target->target(skb, &pkt->xt);
+
+	if (pkt->xt.hotdrop)
+		ret = NF_DROP;
+
+	switch(ret) {
+	case XT_CONTINUE:
+		data[NFT_REG_VERDICT].verdict = NFT_CONTINUE;
+		break;
+	default:
+		data[NFT_REG_VERDICT].verdict = ret;
+		break;
+	}
+	return;
+}
+
+static const struct nla_policy nft_target_policy[NFTA_TARGET_MAX + 1] = {
+	[NFTA_TARGET_NAME]	= { .type = NLA_NUL_STRING },
+	[NFTA_TARGET_REV]	= { .type = NLA_U32 },
+	[NFTA_TARGET_INFO]	= { .type = NLA_BINARY },
+};
+
+static void
+nft_target_set_tgchk_param(struct xt_tgchk_param *par,
+			   const struct nft_ctx *ctx,
+			   struct xt_target *target, void *info,
+			   union nft_entry *entry, u8 proto, bool inv)
+{
+	par->net	= &init_net;
+	par->table	= ctx->table->name;
+	switch (ctx->afi->family) {
+	case AF_INET:
+		entry->e4.ip.proto = proto;
+		entry->e4.ip.invflags = inv ? IPT_INV_PROTO : 0;
+		break;
+	case AF_INET6:
+		entry->e6.ipv6.proto = proto;
+		entry->e6.ipv6.invflags = inv ? IP6T_INV_PROTO : 0;
+		break;
+	}
+	par->entryinfo	= entry;
+	par->target	= target;
+	par->targinfo	= info;
+	if (ctx->chain->flags & NFT_BASE_CHAIN) {
+		const struct nft_base_chain *basechain =
+						nft_base_chain(ctx->chain);
+		const struct nf_hook_ops *ops = &basechain->ops;
+
+		par->hook_mask = 1 << ops->hooknum;
+	}
+	par->family	= ctx->afi->family;
+}
+
+static void target_compat_from_user(struct xt_target *t, void *in, void *out)
+{
+#ifdef CONFIG_COMPAT
+	if (t->compat_from_user) {
+		int pad;
+
+		t->compat_from_user(out, in);
+		pad = XT_ALIGN(t->targetsize) - t->targetsize;
+		if (pad > 0)
+			memset(out + t->targetsize, 0, pad);
+	} else
+#endif
+		memcpy(out, in, XT_ALIGN(t->targetsize));
+}
+
+static inline int nft_compat_target_offset(struct xt_target *target)
+{
+#ifdef CONFIG_COMPAT
+	return xt_compat_target_offset(target);
+#else
+	return 0;
+#endif
+}
+
+static const struct nla_policy nft_rule_compat_policy[NFTA_RULE_COMPAT_MAX + 1] = {
+	[NFTA_RULE_COMPAT_PROTO]	= { .type = NLA_U32 },
+	[NFTA_RULE_COMPAT_FLAGS]	= { .type = NLA_U32 },
+};
+
+static u8 nft_parse_compat(const struct nlattr *attr, bool *inv)
+{
+	struct nlattr *tb[NFTA_RULE_COMPAT_MAX+1];
+	u32 flags;
+	int err;
+
+	err = nla_parse_nested(tb, NFTA_RULE_COMPAT_MAX, attr,
+			       nft_rule_compat_policy);
+	if (err < 0)
+		return err;
+
+	if (!tb[NFTA_RULE_COMPAT_PROTO] || !tb[NFTA_RULE_COMPAT_FLAGS])
+		return -EINVAL;
+
+	flags = ntohl(nla_get_be32(tb[NFTA_RULE_COMPAT_FLAGS]));
+	if (flags & ~NFT_RULE_COMPAT_F_MASK)
+		return -EINVAL;
+	if (flags & NFT_RULE_COMPAT_F_INV)
+		*inv = true;
+
+	return ntohl(nla_get_be32(tb[NFTA_RULE_COMPAT_PROTO]));
+}
+
+static int
+nft_target_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
+		const struct nlattr * const tb[])
+{
+	void *info = nft_expr_priv(expr);
+	struct xt_target *target = expr->ops->data;
+	struct xt_tgchk_param par;
+	size_t size = XT_ALIGN(nla_len(tb[NFTA_TARGET_INFO]));
+	u8 proto = 0;
+	bool inv = false;
+	union nft_entry e = {};
+	int ret;
+
+	target_compat_from_user(target, nla_data(tb[NFTA_TARGET_INFO]), info);
+
+	if (ctx->nla[NFTA_RULE_COMPAT])
+		proto = nft_parse_compat(ctx->nla[NFTA_RULE_COMPAT], &inv);
+
+	nft_target_set_tgchk_param(&par, ctx, target, info, &e, proto, inv);
+
+	ret = xt_check_target(&par, size, proto, inv);
+	if (ret < 0)
+		goto err;
+
+	/* The standard target cannot be used */
+	if (target->target == NULL) {
+		ret = -EINVAL;
+		goto err;
+	}
+
+	return 0;
+err:
+	module_put(target->me);
+	return ret;
+}
+
+static void
+nft_target_destroy(const struct nft_expr *expr)
+{
+	struct xt_target *target = expr->ops->data;
+
+	module_put(target->me);
+}
+
+static int
+target_dump_info(struct sk_buff *skb, const struct xt_target *t, const void *in)
+{
+	int ret;
+
+#ifdef CONFIG_COMPAT
+	if (t->compat_to_user) {
+		mm_segment_t old_fs;
+		void *out;
+
+		out = kmalloc(XT_ALIGN(t->targetsize), GFP_ATOMIC);
+		if (out == NULL)
+			return -ENOMEM;
+
+		/* We want to reuse existing compat_to_user */
+		old_fs = get_fs();
+		set_fs(KERNEL_DS);
+		t->compat_to_user(out, in);
+		set_fs(old_fs);
+		ret = nla_put(skb, NFTA_TARGET_INFO, XT_ALIGN(t->targetsize), out);
+		kfree(out);
+	} else
+#endif
+		ret = nla_put(skb, NFTA_TARGET_INFO, XT_ALIGN(t->targetsize), in);
+
+	return ret;
+}
+
+static int nft_target_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	const struct xt_target *target = expr->ops->data;
+	void *info = nft_expr_priv(expr);
+
+	if (nla_put_string(skb, NFTA_TARGET_NAME, target->name) ||
+	    nla_put_be32(skb, NFTA_TARGET_REV, htonl(target->revision)) ||
+	    target_dump_info(skb, target, info))
+		goto nla_put_failure;
+
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static int nft_target_validate(const struct nft_ctx *ctx,
+			       const struct nft_expr *expr,
+			       const struct nft_data **data)
+{
+	struct xt_target *target = expr->ops->data;
+	unsigned int hook_mask = 0;
+
+	if (ctx->chain->flags & NFT_BASE_CHAIN) {
+		const struct nft_base_chain *basechain =
+						nft_base_chain(ctx->chain);
+		const struct nf_hook_ops *ops = &basechain->ops;
+
+		hook_mask = 1 << ops->hooknum;
+		if (hook_mask & target->hooks)
+			return 0;
+
+		/* This target is being called from an invalid chain */
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static void nft_match_eval(const struct nft_expr *expr,
+			   struct nft_data data[NFT_REG_MAX + 1],
+			   const struct nft_pktinfo *pkt)
+{
+	void *info = nft_expr_priv(expr);
+	struct xt_match *match = expr->ops->data;
+	struct sk_buff *skb = pkt->skb;
+	bool ret;
+
+	nft_compat_set_par((struct xt_action_param *)&pkt->xt, match, info);
+
+	ret = match->match(skb, (struct xt_action_param *)&pkt->xt);
+
+	if (pkt->xt.hotdrop) {
+		data[NFT_REG_VERDICT].verdict = NF_DROP;
+		return;
+	}
+
+	switch(ret) {
+	case true:
+		data[NFT_REG_VERDICT].verdict = NFT_CONTINUE;
+		break;
+	case false:
+		data[NFT_REG_VERDICT].verdict = NFT_BREAK;
+		break;
+	}
+}
+
+static const struct nla_policy nft_match_policy[NFTA_MATCH_MAX + 1] = {
+	[NFTA_MATCH_NAME]	= { .type = NLA_NUL_STRING },
+	[NFTA_MATCH_REV]	= { .type = NLA_U32 },
+	[NFTA_MATCH_INFO]	= { .type = NLA_BINARY },
+};
+
+/* struct xt_mtchk_param and xt_tgchk_param look very similar */
+static void
+nft_match_set_mtchk_param(struct xt_mtchk_param *par, const struct nft_ctx *ctx,
+			  struct xt_match *match, void *info,
+			  union nft_entry *entry, u8 proto, bool inv)
+{
+	par->net	= &init_net;
+	par->table	= ctx->table->name;
+	switch (ctx->afi->family) {
+	case AF_INET:
+		entry->e4.ip.proto = proto;
+		entry->e4.ip.invflags = inv ? IPT_INV_PROTO : 0;
+		break;
+	case AF_INET6:
+		entry->e6.ipv6.proto = proto;
+		entry->e6.ipv6.invflags = inv ? IP6T_INV_PROTO : 0;
+		break;
+	}
+	par->entryinfo	= entry;
+	par->match	= match;
+	par->matchinfo	= info;
+	if (ctx->chain->flags & NFT_BASE_CHAIN) {
+		const struct nft_base_chain *basechain =
+						nft_base_chain(ctx->chain);
+		const struct nf_hook_ops *ops = &basechain->ops;
+
+		par->hook_mask = 1 << ops->hooknum;
+	}
+	par->family	= ctx->afi->family;
+}
+
+static void match_compat_from_user(struct xt_match *m, void *in, void *out)
+{
+#ifdef CONFIG_COMPAT
+	if (m->compat_from_user) {
+		int pad;
+
+		m->compat_from_user(out, in);
+		pad = XT_ALIGN(m->matchsize) - m->matchsize;
+		if (pad > 0)
+			memset(out + m->matchsize, 0, pad);
+	} else
+#endif
+		memcpy(out, in, XT_ALIGN(m->matchsize));
+}
+
+static int
+nft_match_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
+		const struct nlattr * const tb[])
+{
+	void *info = nft_expr_priv(expr);
+	struct xt_match *match = expr->ops->data;
+	struct xt_mtchk_param par;
+	size_t size = XT_ALIGN(nla_len(tb[NFTA_MATCH_INFO]));
+	u8 proto = 0;
+	bool inv = false;
+	union nft_entry e = {};
+	int ret;
+
+	match_compat_from_user(match, nla_data(tb[NFTA_MATCH_INFO]), info);
+
+	if (ctx->nla[NFTA_RULE_COMPAT])
+		proto = nft_parse_compat(ctx->nla[NFTA_RULE_COMPAT], &inv);
+
+	nft_match_set_mtchk_param(&par, ctx, match, info, &e, proto, inv);
+
+	ret = xt_check_match(&par, size, proto, inv);
+	if (ret < 0)
+		goto err;
+
+	return 0;
+err:
+	module_put(match->me);
+	return ret;
+}
+
+static void
+nft_match_destroy(const struct nft_expr *expr)
+{
+	struct xt_match *match = expr->ops->data;
+
+	module_put(match->me);
+}
+
+static int
+match_dump_info(struct sk_buff *skb, const struct xt_match *m, const void *in)
+{
+	int ret;
+
+#ifdef CONFIG_COMPAT
+	if (m->compat_to_user) {
+		mm_segment_t old_fs;
+		void *out;
+
+		out = kmalloc(XT_ALIGN(m->matchsize), GFP_ATOMIC);
+		if (out == NULL)
+			return -ENOMEM;
+
+		/* We want to reuse existing compat_to_user */
+		old_fs = get_fs();
+		set_fs(KERNEL_DS);
+		m->compat_to_user(out, in);
+		set_fs(old_fs);
+		ret = nla_put(skb, NFTA_MATCH_INFO, XT_ALIGN(m->matchsize), out);
+		kfree(out);
+	} else
+#endif
+		ret = nla_put(skb, NFTA_MATCH_INFO, XT_ALIGN(m->matchsize), in);
+
+	return ret;
+}
+
+static inline int nft_compat_match_offset(struct xt_match *match)
+{
+#ifdef CONFIG_COMPAT
+	return xt_compat_match_offset(match);
+#else
+	return 0;
+#endif
+}
+
+static int nft_match_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	void *info = nft_expr_priv(expr);
+	struct xt_match *match = expr->ops->data;
+
+	if (nla_put_string(skb, NFTA_MATCH_NAME, match->name) ||
+	    nla_put_be32(skb, NFTA_MATCH_REV, htonl(match->revision)) ||
+	    match_dump_info(skb, match, info))
+		goto nla_put_failure;
+
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static int nft_match_validate(const struct nft_ctx *ctx,
+			      const struct nft_expr *expr,
+			      const struct nft_data **data)
+{
+	struct xt_match *match = expr->ops->data;
+	unsigned int hook_mask = 0;
+
+	if (ctx->chain->flags & NFT_BASE_CHAIN) {
+		const struct nft_base_chain *basechain =
+						nft_base_chain(ctx->chain);
+		const struct nf_hook_ops *ops = &basechain->ops;
+
+		hook_mask = 1 << ops->hooknum;
+		if (hook_mask & match->hooks)
+			return 0;
+
+		/* This match is being called from an invalid chain */
+		return -EINVAL;
+	}
+	return 0;
+}
+
+static int
+nfnl_compat_fill_info(struct sk_buff *skb, u32 portid, u32 seq, u32 type,
+		      int event, u16 family, const char *name,
+		      int rev, int target)
+{
+	struct nlmsghdr *nlh;
+	struct nfgenmsg *nfmsg;
+	unsigned int flags = portid ? NLM_F_MULTI : 0;
+
+	event |= NFNL_SUBSYS_NFT_COMPAT << 8;
+	nlh = nlmsg_put(skb, portid, seq, event, sizeof(*nfmsg), flags);
+	if (nlh == NULL)
+		goto nlmsg_failure;
+
+	nfmsg = nlmsg_data(nlh);
+	nfmsg->nfgen_family = family;
+	nfmsg->version = NFNETLINK_V0;
+	nfmsg->res_id = 0;
+
+	if (nla_put_string(skb, NFTA_COMPAT_NAME, name) ||
+	    nla_put_be32(skb, NFTA_COMPAT_REV, htonl(rev)) ||
+	    nla_put_be32(skb, NFTA_COMPAT_TYPE, htonl(target)))
+		goto nla_put_failure;
+
+	nlmsg_end(skb, nlh);
+	return skb->len;
+
+nlmsg_failure:
+nla_put_failure:
+	nlmsg_cancel(skb, nlh);
+	return -1;
+}
+
+static int
+nfnl_compat_get(struct sock *nfnl, struct sk_buff *skb,
+		const struct nlmsghdr *nlh, const struct nlattr * const tb[])
+{
+	int ret = 0, target;
+	struct nfgenmsg *nfmsg;
+	const char *fmt;
+	const char *name;
+	u32 rev;
+	struct sk_buff *skb2;
+
+	if (tb[NFTA_COMPAT_NAME] == NULL ||
+	    tb[NFTA_COMPAT_REV] == NULL ||
+	    tb[NFTA_COMPAT_TYPE] == NULL)
+		return -EINVAL;
+
+	name = nla_data(tb[NFTA_COMPAT_NAME]);
+	rev = ntohl(nla_get_be32(tb[NFTA_COMPAT_REV]));
+	target = ntohl(nla_get_be32(tb[NFTA_COMPAT_TYPE]));
+
+	nfmsg = nlmsg_data(nlh);
+
+	switch(nfmsg->nfgen_family) {
+	case AF_INET:
+		fmt = "ipt_%s";
+		break;
+	case AF_INET6:
+		fmt = "ip6t_%s";
+		break;
+	default:
+		pr_err("nft_compat: unsupported protocol %d\n",
+			nfmsg->nfgen_family);
+		return -EINVAL;
+	}
+
+	try_then_request_module(xt_find_revision(nfmsg->nfgen_family, name,
+						 rev, target, &ret),
+						 fmt, name);
+
+	if (ret < 0)
+		return ret;
+
+	skb2 = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+	if (skb2 == NULL)
+		return -ENOMEM;
+
+	/* include the best revision for this extension in the message */
+	if (nfnl_compat_fill_info(skb2, NETLINK_CB(skb).portid,
+				  nlh->nlmsg_seq,
+				  NFNL_MSG_TYPE(nlh->nlmsg_type),
+				  NFNL_MSG_COMPAT_GET,
+				  nfmsg->nfgen_family,
+				  name, ret, target) <= 0) {
+		kfree_skb(skb2);
+		return -ENOSPC;
+	}
+
+	ret = netlink_unicast(nfnl, skb2, NETLINK_CB(skb).portid,
+				MSG_DONTWAIT);
+	if (ret > 0)
+		ret = 0;
+
+	return ret == -EAGAIN ? -ENOBUFS : ret;
+}
+
+static const struct nla_policy nfnl_compat_policy_get[NFTA_COMPAT_MAX+1] = {
+	[NFTA_COMPAT_NAME]	= { .type = NLA_NUL_STRING,
+				    .len = NFT_COMPAT_NAME_MAX-1 },
+	[NFTA_COMPAT_REV]	= { .type = NLA_U32 },
+	[NFTA_COMPAT_TYPE]	= { .type = NLA_U32 },
+};
+
+static const struct nfnl_callback nfnl_nft_compat_cb[NFNL_MSG_COMPAT_MAX] = {
+	[NFNL_MSG_COMPAT_GET]		= { .call = nfnl_compat_get,
+					    .attr_count = NFTA_COMPAT_MAX,
+					    .policy = nfnl_compat_policy_get },
+};
+
+static const struct nfnetlink_subsystem nfnl_compat_subsys = {
+	.name		= "nft-compat",
+	.subsys_id	= NFNL_SUBSYS_NFT_COMPAT,
+	.cb_count	= NFNL_MSG_COMPAT_MAX,
+	.cb		= nfnl_nft_compat_cb,
+};
+
+static LIST_HEAD(nft_match_list);
+
+struct nft_xt {
+	struct list_head	head;
+	struct nft_expr_ops	ops;
+};
+
+static struct nft_expr_type nft_match_type;
+
+static const struct nft_expr_ops *
+nft_match_select_ops(const struct nft_ctx *ctx,
+		     const struct nlattr * const tb[])
+{
+	struct nft_xt *nft_match;
+	struct xt_match *match;
+	char *mt_name;
+	__u32 rev, family;
+
+	if (tb[NFTA_MATCH_NAME] == NULL ||
+	    tb[NFTA_MATCH_REV] == NULL ||
+	    tb[NFTA_MATCH_INFO] == NULL)
+		return ERR_PTR(-EINVAL);
+
+	mt_name = nla_data(tb[NFTA_MATCH_NAME]);
+	rev = ntohl(nla_get_be32(tb[NFTA_MATCH_REV]));
+	family = ctx->afi->family;
+
+	/* Re-use the existing match if it's already loaded. */
+	list_for_each_entry(nft_match, &nft_match_list, head) {
+		struct xt_match *match = nft_match->ops.data;
+
+		if (strcmp(match->name, mt_name) == 0 &&
+		    match->revision == rev && match->family == family)
+			return &nft_match->ops;
+	}
+
+	match = xt_request_find_match(family, mt_name, rev);
+	if (IS_ERR(match))
+		return ERR_PTR(-ENOENT);
+
+	/* This is the first time we use this match, allocate operations */
+	nft_match = kzalloc(sizeof(struct nft_xt), GFP_KERNEL);
+	if (nft_match == NULL)
+		return ERR_PTR(-ENOMEM);
+
+	nft_match->ops.type = &nft_match_type;
+	nft_match->ops.size = NFT_EXPR_SIZE(XT_ALIGN(match->matchsize) +
+					    nft_compat_match_offset(match));
+	nft_match->ops.eval = nft_match_eval;
+	nft_match->ops.init = nft_match_init;
+	nft_match->ops.destroy = nft_match_destroy;
+	nft_match->ops.dump = nft_match_dump;
+	nft_match->ops.validate = nft_match_validate;
+	nft_match->ops.data = match;
+
+	list_add(&nft_match->head, &nft_match_list);
+
+	return &nft_match->ops;
+}
+
+static void nft_match_release(void)
+{
+	struct nft_xt *nft_match;
+
+	list_for_each_entry(nft_match, &nft_match_list, head)
+		kfree(nft_match);
+}
+
+static struct nft_expr_type nft_match_type __read_mostly = {
+	.name		= "match",
+	.select_ops	= nft_match_select_ops,
+	.policy		= nft_match_policy,
+	.maxattr	= NFTA_MATCH_MAX,
+	.owner		= THIS_MODULE,
+};
+
+static LIST_HEAD(nft_target_list);
+
+static struct nft_expr_type nft_target_type;
+
+static const struct nft_expr_ops *
+nft_target_select_ops(const struct nft_ctx *ctx,
+		      const struct nlattr * const tb[])
+{
+	struct nft_xt *nft_target;
+	struct xt_target *target;
+	char *tg_name;
+	__u32 rev, family;
+
+	if (tb[NFTA_TARGET_NAME] == NULL ||
+	    tb[NFTA_TARGET_REV] == NULL ||
+	    tb[NFTA_TARGET_INFO] == NULL)
+		return ERR_PTR(-EINVAL);
+
+	tg_name = nla_data(tb[NFTA_TARGET_NAME]);
+	rev = ntohl(nla_get_be32(tb[NFTA_TARGET_REV]));
+	family = ctx->afi->family;
+
+	/* Re-use the existing target if it's already loaded. */
+	list_for_each_entry(nft_target, &nft_match_list, head) {
+		struct xt_target *target = nft_target->ops.data;
+
+		if (strcmp(target->name, tg_name) == 0 &&
+		    target->revision == rev && target->family == family)
+			return &nft_target->ops;
+	}
+
+	target = xt_request_find_target(family, tg_name, rev);
+	if (IS_ERR(target))
+		return ERR_PTR(-ENOENT);
+
+	/* This is the first time we use this target, allocate operations */
+	nft_target = kzalloc(sizeof(struct nft_xt), GFP_KERNEL);
+	if (nft_target == NULL)
+		return ERR_PTR(-ENOMEM);
+
+	nft_target->ops.type = &nft_target_type;
+	nft_target->ops.size = NFT_EXPR_SIZE(XT_ALIGN(target->targetsize) +
+					     nft_compat_target_offset(target));
+	nft_target->ops.eval = nft_target_eval;
+	nft_target->ops.init = nft_target_init;
+	nft_target->ops.destroy = nft_target_destroy;
+	nft_target->ops.dump = nft_target_dump;
+	nft_target->ops.validate = nft_target_validate;
+	nft_target->ops.data = target;
+
+	list_add(&nft_target->head, &nft_target_list);
+
+	return &nft_target->ops;
+}
+
+static void nft_target_release(void)
+{
+	struct nft_xt *nft_target;
+
+	list_for_each_entry(nft_target, &nft_target_list, head)
+		kfree(nft_target);
+}
+
+static struct nft_expr_type nft_target_type __read_mostly = {
+	.name		= "target",
+	.select_ops	= nft_target_select_ops,
+	.policy		= nft_target_policy,
+	.maxattr	= NFTA_TARGET_MAX,
+	.owner		= THIS_MODULE,
+};
+
+static int __init nft_compat_module_init(void)
+{
+	int ret;
+
+	ret = nft_register_expr(&nft_match_type);
+	if (ret < 0)
+		return ret;
+
+	ret = nft_register_expr(&nft_target_type);
+	if (ret < 0)
+		goto err_match;
+
+	ret = nfnetlink_subsys_register(&nfnl_compat_subsys);
+	if (ret < 0) {
+		pr_err("nft_compat: cannot register with nfnetlink.\n");
+		goto err_target;
+	}
+
+	pr_info("nf_tables_compat: (c) 2012 Pablo Neira Ayuso <pablo@netfilter.org>\n");
+
+	return ret;
+
+err_target:
+	nft_unregister_expr(&nft_target_type);
+err_match:
+	nft_unregister_expr(&nft_match_type);
+	return ret;
+}
+
+static void __exit nft_compat_module_exit(void)
+{
+	nfnetlink_subsys_unregister(&nfnl_compat_subsys);
+	nft_unregister_expr(&nft_target_type);
+	nft_unregister_expr(&nft_match_type);
+	nft_match_release();
+	nft_target_release();
+}
+
+MODULE_ALIAS_NFNL_SUBSYS(NFNL_SUBSYS_NFT_COMPAT);
+
+module_init(nft_compat_module_init);
+module_exit(nft_compat_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Pablo Neira Ayuso <pablo@netfilter.org>");
+MODULE_ALIAS_NFT_EXPR("match");
+MODULE_ALIAS_NFT_EXPR("target");
diff --git a/net/netfilter/nft_immediate.c b/net/netfilter/nft_immediate.c
index 1bfeeaf865b6..f169501f1ad4 100644
--- a/net/netfilter/nft_immediate.c
+++ b/net/netfilter/nft_immediate.c
@@ -90,14 +90,16 @@ nla_put_failure:
 	return -1;
 }
 
-static const struct nft_data *nft_immediate_get_verdict(const struct nft_expr *expr)
+static int nft_immediate_validate(const struct nft_ctx *ctx,
+				  const struct nft_expr *expr,
+				  const struct nft_data **data)
 {
 	const struct nft_immediate_expr *priv = nft_expr_priv(expr);
 
 	if (priv->dreg == NFT_REG_VERDICT)
-		return &priv->data;
-	else
-		return NULL;
+		*data = &priv->data;
+
+	return 0;
 }
 
 static struct nft_expr_type nft_imm_type;
@@ -108,7 +110,7 @@ static const struct nft_expr_ops nft_imm_ops = {
 	.init		= nft_immediate_init,
 	.destroy	= nft_immediate_destroy,
 	.dump		= nft_immediate_dump,
-	.get_verdict	= nft_immediate_get_verdict,
+	.validate	= nft_immediate_validate,
 };
 
 static struct nft_expr_type nft_imm_type __read_mostly = {
diff --git a/net/netfilter/nft_payload.c b/net/netfilter/nft_payload.c
index 7cf13f7e1e94..bc8bdb2c1ba7 100644
--- a/net/netfilter/nft_payload.c
+++ b/net/netfilter/nft_payload.c
@@ -107,7 +107,9 @@ const struct nft_expr_ops nft_payload_fast_ops = {
 	.dump		= nft_payload_dump,
 };
 
-static const struct nft_expr_ops *nft_payload_select_ops(const struct nlattr * const tb[])
+static const struct nft_expr_ops *
+nft_payload_select_ops(const struct nft_ctx *ctx,
+		       const struct nlattr * const tb[])
 {
 	enum nft_payload_bases base;
 	unsigned int offset, len;
-- 
cgit 


From c54032e05bfcbb261f47aaadf8476e864e8712f4 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Fri, 11 Oct 2013 10:00:22 +0200
Subject: netfilter: nf_tables: nft_payload: fix transport header base

We cannot use skb->transport_header since it's unset, use
pkt->xt.thoff instead.

Now possible using information made available through the x_tables
compatibility layer.

Reported-by: Eric Leblond <eric@regit.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nf_tables_core.c | 2 +-
 net/netfilter/nft_payload.c    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/nf_tables_core.c b/net/netfilter/nf_tables_core.c
index e51a45c12128..3c13007d80df 100644
--- a/net/netfilter/nf_tables_core.c
+++ b/net/netfilter/nf_tables_core.c
@@ -44,7 +44,7 @@ static bool nft_payload_fast_eval(const struct nft_expr *expr,
 	if (priv->base == NFT_PAYLOAD_NETWORK_HEADER)
 		ptr = skb_network_header(skb);
 	else
-		ptr = skb_transport_header(skb);
+		ptr = skb_network_header(skb) + pkt->xt.thoff;
 
 	ptr += priv->offset;
 
diff --git a/net/netfilter/nft_payload.c b/net/netfilter/nft_payload.c
index bc8bdb2c1ba7..a2aeb318678f 100644
--- a/net/netfilter/nft_payload.c
+++ b/net/netfilter/nft_payload.c
@@ -36,7 +36,7 @@ static void nft_payload_eval(const struct nft_expr *expr,
 		offset = skb_network_offset(skb);
 		break;
 	case NFT_PAYLOAD_TRANSPORT_HEADER:
-		offset = skb_transport_offset(skb);
+		offset = pkt->xt.thoff;
 		break;
 	default:
 		BUG();
-- 
cgit 


From 9ddf63235749a9efa1fad2eeb74be2ee9b580f8d Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Thu, 10 Oct 2013 13:26:33 +0200
Subject: netfilter: nf_tables: add support for dormant tables

This patch allows you to temporarily disable an entire table.
You can change the state of a dormant table via NFT_MSG_NEWTABLE
messages. Using this operation you can wake up a table, so their
chains are registered.

This provides atomicity at chain level. Thus, the rule-set of one
chain is applied at once, avoiding any possible intermediate state
in every chain. Still, the chains that belongs to a table are
registered consecutively. This also allows you to have inactive
tables in the kernel.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/uapi/linux/netfilter/nf_tables.h | 11 ++++
 net/netfilter/nf_tables_api.c            | 97 +++++++++++++++++++++++++++++---
 2 files changed, 101 insertions(+), 7 deletions(-)

diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index 1563875e6942..a9c4bce1988f 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -96,14 +96,25 @@ enum nft_hook_attributes {
 };
 #define NFTA_HOOK_MAX		(__NFTA_HOOK_MAX - 1)
 
+/**
+ * enum nft_table_flags - nf_tables table flags
+ *
+ * @NFT_TABLE_F_DORMANT: this table is not active
+ */
+enum nft_table_flags {
+	NFT_TABLE_F_DORMANT	= 0x1,
+};
+
 /**
  * enum nft_table_attributes - nf_tables table netlink attributes
  *
  * @NFTA_TABLE_NAME: name of the table (NLA_STRING)
+ * @NFTA_TABLE_FLAGS: bitmask of enum nft_table_flags (NLA_U32)
  */
 enum nft_table_attributes {
 	NFTA_TABLE_UNSPEC,
 	NFTA_TABLE_NAME,
+	NFTA_TABLE_FLAGS,
 	__NFTA_TABLE_MAX
 };
 #define NFTA_TABLE_MAX		(__NFTA_TABLE_MAX - 1)
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 61e017b349cb..a4dd7ce5ec3e 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -158,6 +158,7 @@ static int nf_tables_chain_type_lookup(const struct nft_af_info *afi,
 
 static const struct nla_policy nft_table_policy[NFTA_TABLE_MAX + 1] = {
 	[NFTA_TABLE_NAME]	= { .type = NLA_STRING },
+	[NFTA_TABLE_FLAGS]	= { .type = NLA_U32 },
 };
 
 static int nf_tables_fill_table_info(struct sk_buff *skb, u32 portid, u32 seq,
@@ -177,7 +178,8 @@ static int nf_tables_fill_table_info(struct sk_buff *skb, u32 portid, u32 seq,
 	nfmsg->version		= NFNETLINK_V0;
 	nfmsg->res_id		= 0;
 
-	if (nla_put_string(skb, NFTA_TABLE_NAME, table->name))
+	if (nla_put_string(skb, NFTA_TABLE_NAME, table->name) ||
+	    nla_put_be32(skb, NFTA_TABLE_FLAGS, htonl(table->flags)))
 		goto nla_put_failure;
 
 	return nlmsg_end(skb, nlh);
@@ -301,6 +303,74 @@ err:
 	return err;
 }
 
+static int nf_tables_table_enable(struct nft_table *table)
+{
+	struct nft_chain *chain;
+	int err, i = 0;
+
+	list_for_each_entry(chain, &table->chains, list) {
+		err = nf_register_hook(&nft_base_chain(chain)->ops);
+		if (err < 0)
+			goto err;
+
+		i++;
+	}
+	return 0;
+err:
+	list_for_each_entry(chain, &table->chains, list) {
+		if (i-- <= 0)
+			break;
+
+		nf_unregister_hook(&nft_base_chain(chain)->ops);
+	}
+	return err;
+}
+
+static int nf_tables_table_disable(struct nft_table *table)
+{
+	struct nft_chain *chain;
+
+	list_for_each_entry(chain, &table->chains, list)
+		nf_unregister_hook(&nft_base_chain(chain)->ops);
+
+	return 0;
+}
+
+static int nf_tables_updtable(struct sock *nlsk, struct sk_buff *skb,
+			      const struct nlmsghdr *nlh,
+			      const struct nlattr * const nla[],
+			      struct nft_af_info *afi, struct nft_table *table)
+{
+	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
+	int family = nfmsg->nfgen_family, ret = 0;
+
+	if (nla[NFTA_TABLE_FLAGS]) {
+		__be32 flags;
+
+		flags = ntohl(nla_get_be32(nla[NFTA_TABLE_FLAGS]));
+		if (flags & ~NFT_TABLE_F_DORMANT)
+			return -EINVAL;
+
+		if ((flags & NFT_TABLE_F_DORMANT) &&
+		    !(table->flags & NFT_TABLE_F_DORMANT)) {
+			ret = nf_tables_table_disable(table);
+			if (ret >= 0)
+				table->flags |= NFT_TABLE_F_DORMANT;
+		} else if (!(flags & NFT_TABLE_F_DORMANT) &&
+			   table->flags & NFT_TABLE_F_DORMANT) {
+			ret = nf_tables_table_enable(table);
+			if (ret >= 0)
+				table->flags &= ~NFT_TABLE_F_DORMANT;
+		}
+		if (ret < 0)
+			goto err;
+	}
+
+	nf_tables_table_notify(skb, nlh, table, NFT_MSG_NEWTABLE, family);
+err:
+	return ret;
+}
+
 static int nf_tables_newtable(struct sock *nlsk, struct sk_buff *skb,
 			      const struct nlmsghdr *nlh,
 			      const struct nlattr * const nla[])
@@ -328,7 +398,7 @@ static int nf_tables_newtable(struct sock *nlsk, struct sk_buff *skb,
 			return -EEXIST;
 		if (nlh->nlmsg_flags & NLM_F_REPLACE)
 			return -EOPNOTSUPP;
-		return 0;
+		return nf_tables_updtable(nlsk, skb, nlh, nla, afi, table);
 	}
 
 	table = kzalloc(sizeof(*table) + nla_len(name), GFP_KERNEL);
@@ -339,6 +409,18 @@ static int nf_tables_newtable(struct sock *nlsk, struct sk_buff *skb,
 	INIT_LIST_HEAD(&table->chains);
 	INIT_LIST_HEAD(&table->sets);
 
+	if (nla[NFTA_TABLE_FLAGS]) {
+		__be32 flags;
+
+		flags = ntohl(nla_get_be32(nla[NFTA_TABLE_FLAGS]));
+		if (flags & ~NFT_TABLE_F_DORMANT) {
+			kfree(table);
+			return -EINVAL;
+		}
+
+		table->flags |= flags;
+	}
+
 	list_add_tail(&table->list, &afi->tables);
 	nf_tables_table_notify(skb, nlh, table, NFT_MSG_NEWTABLE, family);
 	return 0;
@@ -890,10 +972,8 @@ static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
 	chain->handle = nf_tables_alloc_handle(table);
 	nla_strlcpy(chain->name, name, NFT_CHAIN_MAXNAMELEN);
 
-	list_add_tail(&chain->list, &table->chains);
-	table->use++;
-
-	if (chain->flags & NFT_BASE_CHAIN) {
+	if (!(table->flags & NFT_TABLE_F_DORMANT) &&
+	    chain->flags & NFT_BASE_CHAIN) {
 		err = nf_register_hook(&nft_base_chain(chain)->ops);
 		if (err < 0) {
 			free_percpu(basechain->stats);
@@ -901,6 +981,8 @@ static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
 			return err;
 		}
 	}
+	list_add_tail(&chain->list, &table->chains);
+	table->use++;
 notify:
 	nf_tables_chain_notify(skb, nlh, table, chain, NFT_MSG_NEWCHAIN,
 			       family);
@@ -948,7 +1030,8 @@ static int nf_tables_delchain(struct sock *nlsk, struct sk_buff *skb,
 	list_del(&chain->list);
 	table->use--;
 
-	if (chain->flags & NFT_BASE_CHAIN)
+	if (!(table->flags & NFT_TABLE_F_DORMANT) &&
+	    chain->flags & NFT_BASE_CHAIN)
 		nf_unregister_hook(&nft_base_chain(chain)->ops);
 
 	nf_tables_chain_notify(skb, nlh, table, chain, NFT_MSG_DELCHAIN,
-- 
cgit 


From eb31628e37a0a4e01fffd79dcc7f815d2357f53a Mon Sep 17 00:00:00 2001
From: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Date: Thu, 10 Oct 2013 13:39:19 +0200
Subject: netfilter: nf_tables: Add support for IPv6 NAT

This patch generalizes the NAT expression to support both IPv4 and IPv6
using the existing IPv4/IPv6 NAT infrastructure. This also adds the
NAT chain type for IPv6.

This patch collapses the following patches that were posted to the
netfilter-devel mailing list, from Tomasz:

* nf_tables: Change NFTA_NAT_ attributes to better semantic significance
* nf_tables: Split IPv4 NAT into NAT expression and IPv4 NAT chain
* nf_tables: Add support for IPv6 NAT expression
* nf_tables: Add support for IPv6 NAT chain
* nf_tables: Fix up build issue on IPv6 NAT support

And, from Pablo Neira Ayuso:

* fix missing dependencies in nft_chain_nat

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/uapi/linux/netfilter/nf_tables.h |  18 +--
 net/ipv4/netfilter/Kconfig               |   1 +
 net/ipv4/netfilter/nft_chain_nat_ipv4.c  | 156 +---------------------
 net/ipv6/netfilter/Kconfig               |   5 +
 net/ipv6/netfilter/Makefile              |   1 +
 net/ipv6/netfilter/nft_chain_nat_ipv6.c  | 211 +++++++++++++++++++++++++++++
 net/netfilter/Kconfig                    |   6 +
 net/netfilter/Makefile                   |   1 +
 net/netfilter/nft_nat.c                  | 220 +++++++++++++++++++++++++++++++
 9 files changed, 457 insertions(+), 162 deletions(-)
 create mode 100644 net/ipv6/netfilter/nft_chain_nat_ipv6.c
 create mode 100644 net/netfilter/nft_nat.c

diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index a9c4bce1988f..7d4a1992f89c 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -695,18 +695,20 @@ enum nft_nat_types {
  * enum nft_nat_attributes - nf_tables nat expression netlink attributes
  *
  * @NFTA_NAT_TYPE: NAT type (NLA_U32: nft_nat_types)
- * @NFTA_NAT_ADDR_MIN: source register of address range start (NLA_U32: nft_registers)
- * @NFTA_NAT_ADDR_MAX: source register of address range end (NLA_U32: nft_registers)
- * @NFTA_NAT_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
- * @NFTA_NAT_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
+ * @NFTA_NAT_FAMILY: NAT family (NLA_U32)
+ * @NFTA_NAT_REG_ADDR_MIN: source register of address range start (NLA_U32: nft_registers)
+ * @NFTA_NAT_REG_ADDR_MAX: source register of address range end (NLA_U32: nft_registers)
+ * @NFTA_NAT_REG_PROTO_MIN: source register of proto range start (NLA_U32: nft_registers)
+ * @NFTA_NAT_REG_PROTO_MAX: source register of proto range end (NLA_U32: nft_registers)
  */
 enum nft_nat_attributes {
 	NFTA_NAT_UNSPEC,
 	NFTA_NAT_TYPE,
-	NFTA_NAT_ADDR_MIN,
-	NFTA_NAT_ADDR_MAX,
-	NFTA_NAT_PROTO_MIN,
-	NFTA_NAT_PROTO_MAX,
+	NFTA_NAT_FAMILY,
+	NFTA_NAT_REG_ADDR_MIN,
+	NFTA_NAT_REG_ADDR_MAX,
+	NFTA_NAT_REG_PROTO_MIN,
+	NFTA_NAT_REG_PROTO_MAX,
 	__NFTA_NAT_MAX
 };
 #define NFTA_NAT_MAX		(__NFTA_NAT_MAX - 1)
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
index ae65fe98bfbe..1f37ef67f1ac 100644
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -50,6 +50,7 @@ config NFT_CHAIN_ROUTE_IPV4
 
 config NFT_CHAIN_NAT_IPV4
 	depends on NF_TABLES_IPV4
+	depends on NF_NAT_IPV4 && NFT_NAT
 	tristate "IPv4 nf_tables nat chain support"
 
 config IP_NF_IPTABLES
diff --git a/net/ipv4/netfilter/nft_chain_nat_ipv4.c b/net/ipv4/netfilter/nft_chain_nat_ipv4.c
index e09c201adf84..cf2c792cd971 100644
--- a/net/ipv4/netfilter/nft_chain_nat_ipv4.c
+++ b/net/ipv4/netfilter/nft_chain_nat_ipv4.c
@@ -1,6 +1,7 @@
 /*
  * Copyright (c) 2008-2009 Patrick McHardy <kaber@trash.net>
  * Copyright (c) 2012 Pablo Neira Ayuso <pablo@netfilter.org>
+ * Copyright (c) 2012 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -14,10 +15,8 @@
 #include <linux/list.h>
 #include <linux/skbuff.h>
 #include <linux/ip.h>
-#include <linux/netlink.h>
 #include <linux/netfilter.h>
 #include <linux/netfilter_ipv4.h>
-#include <linux/netfilter/nfnetlink.h>
 #include <linux/netfilter/nf_tables.h>
 #include <net/netfilter/nf_conntrack.h>
 #include <net/netfilter/nf_nat.h>
@@ -27,147 +26,6 @@
 #include <net/netfilter/nf_nat_l3proto.h>
 #include <net/ip.h>
 
-struct nft_nat {
-	enum nft_registers	sreg_addr_min:8;
-	enum nft_registers	sreg_addr_max:8;
-	enum nft_registers	sreg_proto_min:8;
-	enum nft_registers	sreg_proto_max:8;
-	enum nf_nat_manip_type	type;
-};
-
-static void nft_nat_eval(const struct nft_expr *expr,
-			 struct nft_data data[NFT_REG_MAX + 1],
-			 const struct nft_pktinfo *pkt)
-{
-	const struct nft_nat *priv = nft_expr_priv(expr);
-	enum ip_conntrack_info ctinfo;
-	struct nf_conn *ct = nf_ct_get(pkt->skb, &ctinfo);
-	struct nf_nat_range range;
-
-	memset(&range, 0, sizeof(range));
-	if (priv->sreg_addr_min) {
-		range.min_addr.ip = data[priv->sreg_addr_min].data[0];
-		range.max_addr.ip = data[priv->sreg_addr_max].data[0];
-		range.flags |= NF_NAT_RANGE_MAP_IPS;
-	}
-
-	if (priv->sreg_proto_min) {
-		range.min_proto.all = data[priv->sreg_proto_min].data[0];
-		range.max_proto.all = data[priv->sreg_proto_max].data[0];
-		range.flags |= NF_NAT_RANGE_PROTO_SPECIFIED;
-	}
-
-	data[NFT_REG_VERDICT].verdict =
-		nf_nat_setup_info(ct, &range, priv->type);
-}
-
-static const struct nla_policy nft_nat_policy[NFTA_NAT_MAX + 1] = {
-	[NFTA_NAT_ADDR_MIN]	= { .type = NLA_U32 },
-	[NFTA_NAT_ADDR_MAX]	= { .type = NLA_U32 },
-	[NFTA_NAT_PROTO_MIN]	= { .type = NLA_U32 },
-	[NFTA_NAT_PROTO_MAX]	= { .type = NLA_U32 },
-	[NFTA_NAT_TYPE]		= { .type = NLA_U32 },
-};
-
-static int nft_nat_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
-			const struct nlattr * const tb[])
-{
-	struct nft_nat *priv = nft_expr_priv(expr);
-	int err;
-
-	if (tb[NFTA_NAT_TYPE] == NULL)
-		return -EINVAL;
-
-	switch (ntohl(nla_get_be32(tb[NFTA_NAT_TYPE]))) {
-	case NFT_NAT_SNAT:
-		priv->type = NF_NAT_MANIP_SRC;
-		break;
-	case NFT_NAT_DNAT:
-		priv->type = NF_NAT_MANIP_DST;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	if (tb[NFTA_NAT_ADDR_MIN]) {
-		priv->sreg_addr_min = ntohl(nla_get_be32(tb[NFTA_NAT_ADDR_MIN]));
-		err = nft_validate_input_register(priv->sreg_addr_min);
-		if (err < 0)
-			return err;
-	}
-
-	if (tb[NFTA_NAT_ADDR_MAX]) {
-		priv->sreg_addr_max = ntohl(nla_get_be32(tb[NFTA_NAT_ADDR_MAX]));
-		err = nft_validate_input_register(priv->sreg_addr_max);
-		if (err < 0)
-			return err;
-	} else
-		priv->sreg_addr_max = priv->sreg_addr_min;
-
-	if (tb[NFTA_NAT_PROTO_MIN]) {
-		priv->sreg_proto_min = ntohl(nla_get_be32(tb[NFTA_NAT_PROTO_MIN]));
-		err = nft_validate_input_register(priv->sreg_proto_min);
-		if (err < 0)
-			return err;
-	}
-
-	if (tb[NFTA_NAT_PROTO_MAX]) {
-		priv->sreg_proto_max = ntohl(nla_get_be32(tb[NFTA_NAT_PROTO_MAX]));
-		err = nft_validate_input_register(priv->sreg_proto_max);
-		if (err < 0)
-			return err;
-	} else
-		priv->sreg_proto_max = priv->sreg_proto_min;
-
-	return 0;
-}
-
-static int nft_nat_dump(struct sk_buff *skb, const struct nft_expr *expr)
-{
-	const struct nft_nat *priv = nft_expr_priv(expr);
-
-	switch (priv->type) {
-	case NF_NAT_MANIP_SRC:
-		if (nla_put_be32(skb, NFTA_NAT_TYPE, htonl(NFT_NAT_SNAT)))
-			goto nla_put_failure;
-		break;
-	case NF_NAT_MANIP_DST:
-		if (nla_put_be32(skb, NFTA_NAT_TYPE, htonl(NFT_NAT_DNAT)))
-			goto nla_put_failure;
-		break;
-	}
-
-	if (nla_put_be32(skb, NFTA_NAT_ADDR_MIN, htonl(priv->sreg_addr_min)))
-		goto nla_put_failure;
-	if (nla_put_be32(skb, NFTA_NAT_ADDR_MAX, htonl(priv->sreg_addr_max)))
-		goto nla_put_failure;
-	if (nla_put_be32(skb, NFTA_NAT_PROTO_MIN, htonl(priv->sreg_proto_min)))
-		goto nla_put_failure;
-	if (nla_put_be32(skb, NFTA_NAT_PROTO_MAX, htonl(priv->sreg_proto_max)))
-		goto nla_put_failure;
-	return 0;
-
-nla_put_failure:
-	return -1;
-}
-
-static struct nft_expr_type nft_nat_type;
-static const struct nft_expr_ops nft_nat_ops = {
-	.type		= &nft_nat_type,
-	.size		= NFT_EXPR_SIZE(sizeof(struct nft_nat)),
-	.eval		= nft_nat_eval,
-	.init		= nft_nat_init,
-	.dump		= nft_nat_dump,
-};
-
-static struct nft_expr_type nft_nat_type __read_mostly = {
-	.name		= "nat",
-	.ops		= &nft_nat_ops,
-	.policy		= nft_nat_policy,
-	.maxattr	= NFTA_NAT_MAX,
-	.owner		= THIS_MODULE,
-};
-
 /*
  * NAT chains
  */
@@ -306,7 +164,7 @@ static unsigned int nf_nat_output(const struct nf_hook_ops *ops,
 	return ret;
 }
 
-struct nf_chain_type nft_chain_nat_ipv4 = {
+static struct nf_chain_type nft_chain_nat_ipv4 = {
 	.family		= NFPROTO_IPV4,
 	.name		= "nat",
 	.type		= NFT_CHAIN_T_NAT,
@@ -331,20 +189,11 @@ static int __init nft_chain_nat_init(void)
 	if (err < 0)
 		return err;
 
-	err = nft_register_expr(&nft_nat_type);
-	if (err < 0)
-		goto err;
-
 	return 0;
-
-err:
-	nft_unregister_chain_type(&nft_chain_nat_ipv4);
-	return err;
 }
 
 static void __exit nft_chain_nat_exit(void)
 {
-	nft_unregister_expr(&nft_nat_type);
 	nft_unregister_chain_type(&nft_chain_nat_ipv4);
 }
 
@@ -354,4 +203,3 @@ module_exit(nft_chain_nat_exit);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
 MODULE_ALIAS_NFT_CHAIN(AF_INET, "nat");
-MODULE_ALIAS_NFT_EXPR("nat");
diff --git a/net/ipv6/netfilter/Kconfig b/net/ipv6/netfilter/Kconfig
index 23833064b7b5..7702f9e90a04 100644
--- a/net/ipv6/netfilter/Kconfig
+++ b/net/ipv6/netfilter/Kconfig
@@ -33,6 +33,11 @@ config NFT_CHAIN_ROUTE_IPV6
 	depends on NF_TABLES_IPV6
 	tristate "IPv6 nf_tables route chain support"
 
+config NFT_CHAIN_NAT_IPV6
+	depends on NF_TABLES_IPV6
+	depends on NF_NAT_IPV6 && NFT_NAT
+	tristate "IPv6 nf_tables nat chain support"
+
 config IP6_NF_IPTABLES
 	tristate "IP6 tables support (required for filtering)"
 	depends on INET && IPV6
diff --git a/net/ipv6/netfilter/Makefile b/net/ipv6/netfilter/Makefile
index be4913aa524d..d1b4928f34f7 100644
--- a/net/ipv6/netfilter/Makefile
+++ b/net/ipv6/netfilter/Makefile
@@ -26,6 +26,7 @@ obj-$(CONFIG_NF_DEFRAG_IPV6) += nf_defrag_ipv6.o
 # nf_tables
 obj-$(CONFIG_NF_TABLES_IPV6) += nf_tables_ipv6.o
 obj-$(CONFIG_NFT_CHAIN_ROUTE_IPV6) += nft_chain_route_ipv6.o
+obj-$(CONFIG_NFT_CHAIN_NAT_IPV6) += nft_chain_nat_ipv6.o
 
 # matches
 obj-$(CONFIG_IP6_NF_MATCH_AH) += ip6t_ah.o
diff --git a/net/ipv6/netfilter/nft_chain_nat_ipv6.c b/net/ipv6/netfilter/nft_chain_nat_ipv6.c
new file mode 100644
index 000000000000..e86dcd70dc76
--- /dev/null
+++ b/net/ipv6/netfilter/nft_chain_nat_ipv6.c
@@ -0,0 +1,211 @@
+/*
+ * Copyright (c) 2011 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2012 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/skbuff.h>
+#include <linux/ip.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter_ipv6.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_conntrack.h>
+#include <net/netfilter/nf_nat.h>
+#include <net/netfilter/nf_nat_core.h>
+#include <net/netfilter/nf_tables.h>
+#include <net/netfilter/nf_tables_ipv6.h>
+#include <net/netfilter/nf_nat_l3proto.h>
+#include <net/ipv6.h>
+
+/*
+ * IPv6 NAT chains
+ */
+
+static unsigned int nf_nat_ipv6_fn(const struct nf_hook_ops *ops,
+			      struct sk_buff *skb,
+			      const struct net_device *in,
+			      const struct net_device *out,
+			      int (*okfn)(struct sk_buff *))
+{
+	enum ip_conntrack_info ctinfo;
+	struct nf_conn *ct = nf_ct_get(skb, &ctinfo);
+	struct nf_conn_nat *nat;
+	enum nf_nat_manip_type maniptype = HOOK2MANIP(ops->hooknum);
+	__be16 frag_off;
+	int hdrlen;
+	u8 nexthdr;
+	struct nft_pktinfo pkt;
+	unsigned int ret;
+
+	if (ct == NULL || nf_ct_is_untracked(ct))
+		return NF_ACCEPT;
+
+	nat = nfct_nat(ct);
+	if (nat == NULL) {
+		/* Conntrack module was loaded late, can't add extension. */
+		if (nf_ct_is_confirmed(ct))
+			return NF_ACCEPT;
+		nat = nf_ct_ext_add(ct, NF_CT_EXT_NAT, GFP_ATOMIC);
+		if (nat == NULL)
+			return NF_ACCEPT;
+	}
+
+	switch (ctinfo) {
+	case IP_CT_RELATED:
+	case IP_CT_RELATED + IP_CT_IS_REPLY:
+		nexthdr = ipv6_hdr(skb)->nexthdr;
+		hdrlen = ipv6_skip_exthdr(skb, sizeof(struct ipv6hdr),
+					  &nexthdr, &frag_off);
+
+		if (hdrlen >= 0 && nexthdr == IPPROTO_ICMPV6) {
+			if (!nf_nat_icmpv6_reply_translation(skb, ct, ctinfo,
+							   ops->hooknum,
+							   hdrlen))
+				return NF_DROP;
+			else
+				return NF_ACCEPT;
+		}
+		/* Fall through */
+	case IP_CT_NEW:
+		if (nf_nat_initialized(ct, maniptype))
+			break;
+
+		nft_set_pktinfo_ipv6(&pkt, ops, skb, in, out);
+
+		ret = nft_do_chain_pktinfo(&pkt, ops);
+		if (ret != NF_ACCEPT)
+			return ret;
+		if (!nf_nat_initialized(ct, maniptype)) {
+			ret = nf_nat_alloc_null_binding(ct, ops->hooknum);
+			if (ret != NF_ACCEPT)
+				return ret;
+		}
+	default:
+		break;
+	}
+
+	return nf_nat_packet(ct, ctinfo, ops->hooknum, skb);
+}
+
+static unsigned int nf_nat_ipv6_prerouting(const struct nf_hook_ops *ops,
+				      struct sk_buff *skb,
+				      const struct net_device *in,
+				      const struct net_device *out,
+				      int (*okfn)(struct sk_buff *))
+{
+	struct in6_addr daddr = ipv6_hdr(skb)->daddr;
+	unsigned int ret;
+
+	ret = nf_nat_ipv6_fn(ops, skb, in, out, okfn);
+	if (ret != NF_DROP && ret != NF_STOLEN &&
+	    ipv6_addr_cmp(&daddr, &ipv6_hdr(skb)->daddr))
+		skb_dst_drop(skb);
+
+	return ret;
+}
+
+static unsigned int nf_nat_ipv6_postrouting(const struct nf_hook_ops *ops,
+				       struct sk_buff *skb,
+				       const struct net_device *in,
+				       const struct net_device *out,
+				       int (*okfn)(struct sk_buff *))
+{
+	enum ip_conntrack_info ctinfo __maybe_unused;
+	const struct nf_conn *ct __maybe_unused;
+	unsigned int ret;
+
+	ret = nf_nat_ipv6_fn(ops, skb, in, out, okfn);
+#ifdef CONFIG_XFRM
+	if (ret != NF_DROP && ret != NF_STOLEN &&
+	    !(IP6CB(skb)->flags & IP6SKB_XFRM_TRANSFORMED) &&
+	    (ct = nf_ct_get(skb, &ctinfo)) != NULL) {
+		enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
+
+		if (!nf_inet_addr_cmp(&ct->tuplehash[dir].tuple.src.u3,
+				      &ct->tuplehash[!dir].tuple.dst.u3) ||
+		    (ct->tuplehash[dir].tuple.src.u.all !=
+		     ct->tuplehash[!dir].tuple.dst.u.all))
+			if (nf_xfrm_me_harder(skb, AF_INET6) < 0)
+				ret = NF_DROP;
+	}
+#endif
+	return ret;
+}
+
+static unsigned int nf_nat_ipv6_output(const struct nf_hook_ops *ops,
+				  struct sk_buff *skb,
+				  const struct net_device *in,
+				  const struct net_device *out,
+				  int (*okfn)(struct sk_buff *))
+{
+	enum ip_conntrack_info ctinfo;
+	const struct nf_conn *ct;
+	unsigned int ret;
+
+	ret = nf_nat_ipv6_fn(ops, skb, in, out, okfn);
+	if (ret != NF_DROP && ret != NF_STOLEN &&
+	    (ct = nf_ct_get(skb, &ctinfo)) != NULL) {
+		enum ip_conntrack_dir dir = CTINFO2DIR(ctinfo);
+
+		if (!nf_inet_addr_cmp(&ct->tuplehash[dir].tuple.dst.u3,
+				      &ct->tuplehash[!dir].tuple.src.u3)) {
+			if (ip6_route_me_harder(skb))
+				ret = NF_DROP;
+		}
+#ifdef CONFIG_XFRM
+		else if (!(IP6CB(skb)->flags & IP6SKB_XFRM_TRANSFORMED) &&
+			 ct->tuplehash[dir].tuple.dst.u.all !=
+			 ct->tuplehash[!dir].tuple.src.u.all)
+			if (nf_xfrm_me_harder(skb, AF_INET6))
+				ret = NF_DROP;
+#endif
+	}
+	return ret;
+}
+
+static struct nf_chain_type nft_chain_nat_ipv6 = {
+	.family		= NFPROTO_IPV6,
+	.name		= "nat",
+	.type		= NFT_CHAIN_T_NAT,
+	.hook_mask	= (1 << NF_INET_PRE_ROUTING) |
+			  (1 << NF_INET_POST_ROUTING) |
+			  (1 << NF_INET_LOCAL_OUT) |
+			  (1 << NF_INET_LOCAL_IN),
+	.fn		= {
+		[NF_INET_PRE_ROUTING]	= nf_nat_ipv6_prerouting,
+		[NF_INET_POST_ROUTING]	= nf_nat_ipv6_postrouting,
+		[NF_INET_LOCAL_OUT]	= nf_nat_ipv6_output,
+		[NF_INET_LOCAL_IN]	= nf_nat_ipv6_fn,
+	},
+	.me		= THIS_MODULE,
+};
+
+static int __init nft_chain_nat_ipv6_init(void)
+{
+	int err;
+
+	err = nft_register_chain_type(&nft_chain_nat_ipv6);
+	if (err < 0)
+		return err;
+
+	return 0;
+}
+
+static void __exit nft_chain_nat_ipv6_exit(void)
+{
+	nft_unregister_chain_type(&nft_chain_nat_ipv6);
+}
+
+module_init(nft_chain_nat_ipv6_init);
+module_exit(nft_chain_nat_ipv6_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>");
+MODULE_ALIAS_NFT_CHAIN(AF_INET6, "nat");
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index 49e362707379..48acec17e27a 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -450,6 +450,12 @@ config NFT_LIMIT
 	depends on NF_TABLES
 	tristate "Netfilter nf_tables limit module"
 
+config NFT_NAT
+	depends on NF_TABLES
+	depends on NF_CONNTRACK
+	depends on NF_NAT
+	tristate "Netfilter nf_tables nat module"
+
 config NFT_COMPAT
 	depends on NF_TABLES
 	depends on NETFILTER_XTABLES
diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
index a6781450b6fb..394483b2c193 100644
--- a/net/netfilter/Makefile
+++ b/net/netfilter/Makefile
@@ -75,6 +75,7 @@ obj-$(CONFIG_NFT_EXTHDR)	+= nft_exthdr.o
 obj-$(CONFIG_NFT_META)		+= nft_meta.o
 obj-$(CONFIG_NFT_CT)		+= nft_ct.o
 obj-$(CONFIG_NFT_LIMIT)		+= nft_limit.o
+obj-$(CONFIG_NFT_NAT)		+= nft_nat.o
 #nf_tables-objs			+= nft_meta_target.o
 obj-$(CONFIG_NFT_RBTREE)	+= nft_rbtree.o
 obj-$(CONFIG_NFT_HASH)		+= nft_hash.o
diff --git a/net/netfilter/nft_nat.c b/net/netfilter/nft_nat.c
new file mode 100644
index 000000000000..b0b87b2d2411
--- /dev/null
+++ b/net/netfilter/nft_nat.c
@@ -0,0 +1,220 @@
+/*
+ * Copyright (c) 2008-2009 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2012 Pablo Neira Ayuso <pablo@netfilter.org>
+ * Copyright (c) 2012 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/skbuff.h>
+#include <linux/ip.h>
+#include <linux/string.h>
+#include <linux/netlink.h>
+#include <linux/netfilter.h>
+#include <linux/netfilter_ipv4.h>
+#include <linux/netfilter/nfnetlink.h>
+#include <linux/netfilter/nf_tables.h>
+#include <net/netfilter/nf_conntrack.h>
+#include <net/netfilter/nf_nat.h>
+#include <net/netfilter/nf_nat_core.h>
+#include <net/netfilter/nf_tables.h>
+#include <net/netfilter/nf_nat_l3proto.h>
+#include <net/ip.h>
+
+struct nft_nat {
+	enum nft_registers      sreg_addr_min:8;
+	enum nft_registers      sreg_addr_max:8;
+	enum nft_registers      sreg_proto_min:8;
+	enum nft_registers      sreg_proto_max:8;
+	int                     family;
+	enum nf_nat_manip_type  type;
+};
+
+static void nft_nat_eval(const struct nft_expr *expr,
+			 struct nft_data data[NFT_REG_MAX + 1],
+			 const struct nft_pktinfo *pkt)
+{
+	const struct nft_nat *priv = nft_expr_priv(expr);
+	enum ip_conntrack_info ctinfo;
+	struct nf_conn *ct = nf_ct_get(pkt->skb, &ctinfo);
+	struct nf_nat_range range;
+
+	memset(&range, 0, sizeof(range));
+	if (priv->sreg_addr_min) {
+		if (priv->family == AF_INET) {
+			range.min_addr.ip = data[priv->sreg_addr_min].data[0];
+			range.max_addr.ip = data[priv->sreg_addr_max].data[0];
+
+		} else {
+			memcpy(range.min_addr.ip6,
+			       data[priv->sreg_addr_min].data,
+			       sizeof(struct nft_data));
+			memcpy(range.max_addr.ip6,
+			       data[priv->sreg_addr_max].data,
+			       sizeof(struct nft_data));
+		}
+		range.flags |= NF_NAT_RANGE_MAP_IPS;
+	}
+
+	if (priv->sreg_proto_min) {
+		range.min_proto.all = data[priv->sreg_proto_min].data[0];
+		range.max_proto.all = data[priv->sreg_proto_max].data[0];
+		range.flags |= NF_NAT_RANGE_PROTO_SPECIFIED;
+	}
+
+	data[NFT_REG_VERDICT].verdict =
+		nf_nat_setup_info(ct, &range, priv->type);
+}
+
+static const struct nla_policy nft_nat_policy[NFTA_NAT_MAX + 1] = {
+	[NFTA_NAT_TYPE]		 = { .type = NLA_U32 },
+	[NFTA_NAT_FAMILY]	 = { .type = NLA_U32 },
+	[NFTA_NAT_REG_ADDR_MIN]	 = { .type = NLA_U32 },
+	[NFTA_NAT_REG_ADDR_MAX]	 = { .type = NLA_U32 },
+	[NFTA_NAT_REG_PROTO_MIN] = { .type = NLA_U32 },
+	[NFTA_NAT_REG_PROTO_MAX] = { .type = NLA_U32 },
+};
+
+static int nft_nat_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
+			const struct nlattr * const tb[])
+{
+	struct nft_nat *priv = nft_expr_priv(expr);
+	int err;
+
+	if (tb[NFTA_NAT_TYPE] == NULL)
+		return -EINVAL;
+
+	switch (ntohl(nla_get_be32(tb[NFTA_NAT_TYPE]))) {
+	case NFT_NAT_SNAT:
+		priv->type = NF_NAT_MANIP_SRC;
+		break;
+	case NFT_NAT_DNAT:
+		priv->type = NF_NAT_MANIP_DST;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (tb[NFTA_NAT_FAMILY] == NULL)
+		return -EINVAL;
+
+	priv->family = ntohl(nla_get_be32(tb[NFTA_NAT_FAMILY]));
+	if (priv->family != AF_INET && priv->family != AF_INET6)
+		return -EINVAL;
+
+	if (tb[NFTA_NAT_REG_ADDR_MIN]) {
+		priv->sreg_addr_min = ntohl(nla_get_be32(
+						tb[NFTA_NAT_REG_ADDR_MIN]));
+		err = nft_validate_input_register(priv->sreg_addr_min);
+		if (err < 0)
+			return err;
+	}
+
+	if (tb[NFTA_NAT_REG_ADDR_MAX]) {
+		priv->sreg_addr_max = ntohl(nla_get_be32(
+						tb[NFTA_NAT_REG_ADDR_MAX]));
+		err = nft_validate_input_register(priv->sreg_addr_max);
+		if (err < 0)
+			return err;
+	} else
+		priv->sreg_addr_max = priv->sreg_addr_min;
+
+	if (tb[NFTA_NAT_REG_PROTO_MIN]) {
+		priv->sreg_proto_min = ntohl(nla_get_be32(
+						tb[NFTA_NAT_REG_PROTO_MIN]));
+		err = nft_validate_input_register(priv->sreg_proto_min);
+		if (err < 0)
+			return err;
+	}
+
+	if (tb[NFTA_NAT_REG_PROTO_MAX]) {
+		priv->sreg_proto_max = ntohl(nla_get_be32(
+						tb[NFTA_NAT_REG_PROTO_MAX]));
+		err = nft_validate_input_register(priv->sreg_proto_max);
+		if (err < 0)
+			return err;
+	} else
+		priv->sreg_proto_max = priv->sreg_proto_min;
+
+	return 0;
+}
+
+static int nft_nat_dump(struct sk_buff *skb, const struct nft_expr *expr)
+{
+	const struct nft_nat *priv = nft_expr_priv(expr);
+
+	switch (priv->type) {
+	case NF_NAT_MANIP_SRC:
+		if (nla_put_be32(skb, NFTA_NAT_TYPE, htonl(NFT_NAT_SNAT)))
+			goto nla_put_failure;
+		break;
+	case NF_NAT_MANIP_DST:
+		if (nla_put_be32(skb, NFTA_NAT_TYPE, htonl(NFT_NAT_DNAT)))
+			goto nla_put_failure;
+		break;
+	}
+
+	if (nla_put_be32(skb, NFTA_NAT_FAMILY, htonl(priv->family)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb,
+			 NFTA_NAT_REG_ADDR_MIN, htonl(priv->sreg_addr_min)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb,
+			 NFTA_NAT_REG_ADDR_MAX, htonl(priv->sreg_addr_max)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb,
+			 NFTA_NAT_REG_PROTO_MIN, htonl(priv->sreg_proto_min)))
+		goto nla_put_failure;
+	if (nla_put_be32(skb,
+			 NFTA_NAT_REG_PROTO_MAX, htonl(priv->sreg_proto_max)))
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return -1;
+}
+
+static struct nft_expr_type nft_nat_type;
+static const struct nft_expr_ops nft_nat_ops = {
+	.type           = &nft_nat_type,
+	.size           = NFT_EXPR_SIZE(sizeof(struct nft_nat)),
+	.eval           = nft_nat_eval,
+	.init           = nft_nat_init,
+	.dump           = nft_nat_dump,
+};
+
+static struct nft_expr_type nft_nat_type __read_mostly = {
+	.name           = "nat",
+	.ops            = &nft_nat_ops,
+	.policy         = nft_nat_policy,
+	.maxattr        = NFTA_NAT_MAX,
+	.owner          = THIS_MODULE,
+};
+
+static int __init nft_nat_module_init(void)
+{
+	int err;
+
+	err = nft_register_expr(&nft_nat_type);
+	if (err < 0)
+		return err;
+
+	return 0;
+}
+
+static void __exit nft_nat_module_exit(void)
+{
+	nft_unregister_expr(&nft_nat_type);
+}
+
+module_init(nft_nat_module_init);
+module_exit(nft_nat_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>");
+MODULE_ALIAS_NFT_EXPR("nat");
-- 
cgit 


From 99633ab29b2131b68089a6c7f60458390860e044 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Thu, 10 Oct 2013 23:28:33 +0200
Subject: netfilter: nf_tables: complete net namespace support

Register family per netnamespace to ensure that sets are
only visible in its approapriate namespace.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/net/net_namespace.h             |  4 ++
 include/net/netfilter/nf_tables.h       |  4 +-
 include/net/netns/nftables.h            | 15 ++++++
 net/bridge/netfilter/nf_tables_bridge.c | 32 ++++++++++++-
 net/ipv4/netfilter/nf_tables_ipv4.c     | 32 ++++++++++++-
 net/ipv6/netfilter/nf_tables_ipv6.c     | 33 ++++++++++++-
 net/netfilter/nf_tables_api.c           | 83 ++++++++++++++++++++++-----------
 7 files changed, 168 insertions(+), 35 deletions(-)
 create mode 100644 include/net/netns/nftables.h

diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index bcc4a8ed4450..da68c9a90ac5 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -22,6 +22,7 @@
 #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
 #include <net/netns/conntrack.h>
 #endif
+#include <net/netns/nftables.h>
 #include <net/netns/xfrm.h>
 
 struct user_namespace;
@@ -101,6 +102,9 @@ struct net {
 #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
 	struct netns_ct		ct;
 #endif
+#if defined(CONFIG_NF_TABLES) || defined(CONFIG_NF_TABLES_MODULE)
+	struct netns_nftables	nft;
+#endif
 #if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6)
 	struct netns_nf_frag	nf_frag;
 #endif
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index a68f45f0fe2e..d3272e943aac 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -68,6 +68,7 @@ static inline void nft_data_debug(const struct nft_data *data)
 /**
  *	struct nft_ctx - nf_tables rule/set context
  *
+ *	@net: net namespace
  * 	@skb: netlink skb
  * 	@nlh: netlink message header
  * 	@afi: address family info
@@ -76,6 +77,7 @@ static inline void nft_data_debug(const struct nft_data *data)
  *	@nla: netlink attributes
  */
 struct nft_ctx {
+	struct net			*net;
 	const struct sk_buff		*skb;
 	const struct nlmsghdr		*nlh;
 	const struct nft_af_info	*afi;
@@ -462,7 +464,7 @@ struct nft_af_info {
 	nf_hookfn			*hooks[NF_MAX_HOOKS];
 };
 
-extern int nft_register_afinfo(struct nft_af_info *);
+extern int nft_register_afinfo(struct net *, struct nft_af_info *);
 extern void nft_unregister_afinfo(struct nft_af_info *);
 
 struct nf_chain_type {
diff --git a/include/net/netns/nftables.h b/include/net/netns/nftables.h
new file mode 100644
index 000000000000..a98b1c5d9913
--- /dev/null
+++ b/include/net/netns/nftables.h
@@ -0,0 +1,15 @@
+#ifndef _NETNS_NFTABLES_H_
+#define _NETNS_NFTABLES_H_
+
+#include <linux/list.h>
+
+struct nft_af_info;
+
+struct netns_nftables {
+	struct list_head	af_info;
+	struct nft_af_info	*ipv4;
+	struct nft_af_info	*ipv6;
+	struct nft_af_info	*bridge;
+};
+
+#endif
diff --git a/net/bridge/netfilter/nf_tables_bridge.c b/net/bridge/netfilter/nf_tables_bridge.c
index bc5c21c911c0..e8cb016fa34d 100644
--- a/net/bridge/netfilter/nf_tables_bridge.c
+++ b/net/bridge/netfilter/nf_tables_bridge.c
@@ -19,14 +19,42 @@ static struct nft_af_info nft_af_bridge __read_mostly = {
 	.owner		= THIS_MODULE,
 };
 
+static int nf_tables_bridge_init_net(struct net *net)
+{
+	net->nft.bridge = kmalloc(sizeof(struct nft_af_info), GFP_KERNEL);
+	if (net->nft.bridge == NULL)
+		return -ENOMEM;
+
+	memcpy(net->nft.bridge, &nft_af_bridge, sizeof(nft_af_bridge));
+
+	if (nft_register_afinfo(net, net->nft.bridge) < 0)
+		goto err;
+
+	return 0;
+err:
+	kfree(net->nft.bridge);
+	return -ENOMEM;
+}
+
+static void nf_tables_bridge_exit_net(struct net *net)
+{
+	nft_unregister_afinfo(net->nft.bridge);
+	kfree(net->nft.bridge);
+}
+
+static struct pernet_operations nf_tables_bridge_net_ops = {
+	.init	= nf_tables_bridge_init_net,
+	.exit	= nf_tables_bridge_exit_net,
+};
+
 static int __init nf_tables_bridge_init(void)
 {
-	return nft_register_afinfo(&nft_af_bridge);
+	return register_pernet_subsys(&nf_tables_bridge_net_ops);
 }
 
 static void __exit nf_tables_bridge_exit(void)
 {
-	nft_unregister_afinfo(&nft_af_bridge);
+	return unregister_pernet_subsys(&nf_tables_bridge_net_ops);
 }
 
 module_init(nf_tables_bridge_init);
diff --git a/net/ipv4/netfilter/nf_tables_ipv4.c b/net/ipv4/netfilter/nf_tables_ipv4.c
index c61cffb9b760..8f7536be1322 100644
--- a/net/ipv4/netfilter/nf_tables_ipv4.c
+++ b/net/ipv4/netfilter/nf_tables_ipv4.c
@@ -14,6 +14,7 @@
 #include <linux/ip.h>
 #include <linux/netfilter_ipv4.h>
 #include <net/netfilter/nf_tables.h>
+#include <net/net_namespace.h>
 #include <net/ip.h>
 #include <net/net_namespace.h>
 #include <net/netfilter/nf_tables_ipv4.h>
@@ -47,6 +48,33 @@ static struct nft_af_info nft_af_ipv4 __read_mostly = {
 	},
 };
 
+static int nf_tables_ipv4_init_net(struct net *net)
+{
+	net->nft.ipv4 = kmalloc(sizeof(struct nft_af_info), GFP_KERNEL);
+	if (net->nft.ipv4 == NULL)
+		return -ENOMEM;
+
+	memcpy(net->nft.ipv4, &nft_af_ipv4, sizeof(nft_af_ipv4));
+
+	if (nft_register_afinfo(net, net->nft.ipv4) < 0)
+		goto err;
+
+	return 0;
+err:
+	kfree(net->nft.ipv4);
+	return -ENOMEM;
+}
+
+static void nf_tables_ipv4_exit_net(struct net *net)
+{
+	nft_unregister_afinfo(net->nft.ipv4);
+	kfree(net->nft.ipv4);
+}
+
+static struct pernet_operations nf_tables_ipv4_net_ops = {
+	.init	= nf_tables_ipv4_init_net,
+	.exit	= nf_tables_ipv4_exit_net,
+};
 
 static unsigned int
 nft_do_chain_ipv4(const struct nf_hook_ops *ops,
@@ -83,12 +111,12 @@ static struct nf_chain_type filter_ipv4 = {
 static int __init nf_tables_ipv4_init(void)
 {
 	nft_register_chain_type(&filter_ipv4);
-	return nft_register_afinfo(&nft_af_ipv4);
+	return register_pernet_subsys(&nf_tables_ipv4_net_ops);
 }
 
 static void __exit nf_tables_ipv4_exit(void)
 {
-	nft_unregister_afinfo(&nft_af_ipv4);
+	unregister_pernet_subsys(&nf_tables_ipv4_net_ops);
 	nft_unregister_chain_type(&filter_ipv4);
 }
 
diff --git a/net/ipv6/netfilter/nf_tables_ipv6.c b/net/ipv6/netfilter/nf_tables_ipv6.c
index 42f905a808a3..d77db8a13505 100644
--- a/net/ipv6/netfilter/nf_tables_ipv6.c
+++ b/net/ipv6/netfilter/nf_tables_ipv6.c
@@ -45,6 +45,34 @@ static struct nft_af_info nft_af_ipv6 __read_mostly = {
 	},
 };
 
+static int nf_tables_ipv6_init_net(struct net *net)
+{
+	net->nft.ipv6 = kmalloc(sizeof(struct nft_af_info), GFP_KERNEL);
+	if (net->nft.ipv6 == NULL)
+		return -ENOMEM;
+
+	memcpy(net->nft.ipv6, &nft_af_ipv6, sizeof(nft_af_ipv6));
+
+	if (nft_register_afinfo(net, net->nft.ipv6) < 0)
+		goto err;
+
+	return 0;
+err:
+	kfree(net->nft.ipv6);
+	return -ENOMEM;
+}
+
+static void nf_tables_ipv6_exit_net(struct net *net)
+{
+	nft_unregister_afinfo(net->nft.ipv6);
+	kfree(net->nft.ipv6);
+}
+
+static struct pernet_operations nf_tables_ipv6_net_ops = {
+	.init	= nf_tables_ipv6_init_net,
+	.exit	= nf_tables_ipv6_exit_net,
+};
+
 static unsigned int
 nft_do_chain_ipv6(const struct nf_hook_ops *ops,
 		  struct sk_buff *skb,
@@ -82,11 +110,12 @@ static struct nf_chain_type filter_ipv6 = {
 static int __init nf_tables_ipv6_init(void)
 {
 	nft_register_chain_type(&filter_ipv6);
-	return nft_register_afinfo(&nft_af_ipv6);
+	return register_pernet_subsys(&nf_tables_ipv6_net_ops);
 }
+
 static void __exit nf_tables_ipv6_exit(void)
 {
-	nft_unregister_afinfo(&nft_af_ipv6);
+	unregister_pernet_subsys(&nf_tables_ipv6_net_ops);
 	nft_unregister_chain_type(&filter_ipv6);
 }
 
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index a4dd7ce5ec3e..e1ee85047ec1 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -18,9 +18,9 @@
 #include <linux/netfilter/nf_tables.h>
 #include <net/netfilter/nf_tables_core.h>
 #include <net/netfilter/nf_tables.h>
+#include <net/net_namespace.h>
 #include <net/sock.h>
 
-static LIST_HEAD(nf_tables_afinfo);
 static LIST_HEAD(nf_tables_expressions);
 
 /**
@@ -31,11 +31,11 @@ static LIST_HEAD(nf_tables_expressions);
  *	Register the address family for use with nf_tables. Returns zero on
  *	success or a negative errno code otherwise.
  */
-int nft_register_afinfo(struct nft_af_info *afi)
+int nft_register_afinfo(struct net *net, struct nft_af_info *afi)
 {
 	INIT_LIST_HEAD(&afi->tables);
 	nfnl_lock(NFNL_SUBSYS_NFTABLES);
-	list_add_tail(&afi->list, &nf_tables_afinfo);
+	list_add_tail(&afi->list, &net->nft.af_info);
 	nfnl_unlock(NFNL_SUBSYS_NFTABLES);
 	return 0;
 }
@@ -56,22 +56,23 @@ void nft_unregister_afinfo(struct nft_af_info *afi)
 }
 EXPORT_SYMBOL_GPL(nft_unregister_afinfo);
 
-static struct nft_af_info *nft_afinfo_lookup(int family)
+static struct nft_af_info *nft_afinfo_lookup(struct net *net, int family)
 {
 	struct nft_af_info *afi;
 
-	list_for_each_entry(afi, &nf_tables_afinfo, list) {
+	list_for_each_entry(afi, &net->nft.af_info, list) {
 		if (afi->family == family)
 			return afi;
 	}
 	return NULL;
 }
 
-static struct nft_af_info *nf_tables_afinfo_lookup(int family, bool autoload)
+static struct nft_af_info *
+nf_tables_afinfo_lookup(struct net *net, int family, bool autoload)
 {
 	struct nft_af_info *afi;
 
-	afi = nft_afinfo_lookup(family);
+	afi = nft_afinfo_lookup(net, family);
 	if (afi != NULL)
 		return afi;
 #ifdef CONFIG_MODULES
@@ -79,7 +80,7 @@ static struct nft_af_info *nf_tables_afinfo_lookup(int family, bool autoload)
 		nfnl_unlock(NFNL_SUBSYS_NFTABLES);
 		request_module("nft-afinfo-%u", family);
 		nfnl_lock(NFNL_SUBSYS_NFTABLES);
-		afi = nft_afinfo_lookup(family);
+		afi = nft_afinfo_lookup(net, family);
 		if (afi != NULL)
 			return ERR_PTR(-EAGAIN);
 	}
@@ -232,9 +233,10 @@ static int nf_tables_dump_tables(struct sk_buff *skb,
 	const struct nft_af_info *afi;
 	const struct nft_table *table;
 	unsigned int idx = 0, s_idx = cb->args[0];
+	struct net *net = sock_net(skb->sk);
 	int family = nfmsg->nfgen_family;
 
-	list_for_each_entry(afi, &nf_tables_afinfo, list) {
+	list_for_each_entry(afi, &net->nft.af_info, list) {
 		if (family != NFPROTO_UNSPEC && family != afi->family)
 			continue;
 
@@ -268,6 +270,7 @@ static int nf_tables_gettable(struct sock *nlsk, struct sk_buff *skb,
 	const struct nft_af_info *afi;
 	const struct nft_table *table;
 	struct sk_buff *skb2;
+	struct net *net = sock_net(skb->sk);
 	int family = nfmsg->nfgen_family;
 	int err;
 
@@ -278,7 +281,7 @@ static int nf_tables_gettable(struct sock *nlsk, struct sk_buff *skb,
 		return netlink_dump_start(nlsk, skb, nlh, &c);
 	}
 
-	afi = nf_tables_afinfo_lookup(family, false);
+	afi = nf_tables_afinfo_lookup(net, family, false);
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
@@ -379,9 +382,10 @@ static int nf_tables_newtable(struct sock *nlsk, struct sk_buff *skb,
 	const struct nlattr *name;
 	struct nft_af_info *afi;
 	struct nft_table *table;
+	struct net *net = sock_net(skb->sk);
 	int family = nfmsg->nfgen_family;
 
-	afi = nf_tables_afinfo_lookup(family, true);
+	afi = nf_tables_afinfo_lookup(net, family, true);
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
@@ -433,9 +437,10 @@ static int nf_tables_deltable(struct sock *nlsk, struct sk_buff *skb,
 	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 	struct nft_af_info *afi;
 	struct nft_table *table;
+	struct net *net = sock_net(skb->sk);
 	int family = nfmsg->nfgen_family;
 
-	afi = nf_tables_afinfo_lookup(family, false);
+	afi = nf_tables_afinfo_lookup(net, family, false);
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
@@ -663,9 +668,10 @@ static int nf_tables_dump_chains(struct sk_buff *skb,
 	const struct nft_table *table;
 	const struct nft_chain *chain;
 	unsigned int idx = 0, s_idx = cb->args[0];
+	struct net *net = sock_net(skb->sk);
 	int family = nfmsg->nfgen_family;
 
-	list_for_each_entry(afi, &nf_tables_afinfo, list) {
+	list_for_each_entry(afi, &net->nft.af_info, list) {
 		if (family != NFPROTO_UNSPEC && family != afi->family)
 			continue;
 
@@ -702,6 +708,7 @@ static int nf_tables_getchain(struct sock *nlsk, struct sk_buff *skb,
 	const struct nft_table *table;
 	const struct nft_chain *chain;
 	struct sk_buff *skb2;
+	struct net *net = sock_net(skb->sk);
 	int family = nfmsg->nfgen_family;
 	int err;
 
@@ -712,7 +719,7 @@ static int nf_tables_getchain(struct sock *nlsk, struct sk_buff *skb,
 		return netlink_dump_start(nlsk, skb, nlh, &c);
 	}
 
-	afi = nf_tables_afinfo_lookup(family, false);
+	afi = nf_tables_afinfo_lookup(net, family, false);
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
@@ -813,6 +820,7 @@ static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
 	struct nft_chain *chain;
 	struct nft_base_chain *basechain = NULL;
 	struct nlattr *ha[NFTA_HOOK_MAX + 1];
+	struct net *net = sock_net(skb->sk);
 	int family = nfmsg->nfgen_family;
 	u64 handle = 0;
 	int err;
@@ -820,7 +828,7 @@ static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
 
 	create = nlh->nlmsg_flags & NLM_F_CREATE ? true : false;
 
-	afi = nf_tables_afinfo_lookup(family, true);
+	afi = nf_tables_afinfo_lookup(net, family, true);
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
@@ -1010,9 +1018,10 @@ static int nf_tables_delchain(struct sock *nlsk, struct sk_buff *skb,
 	const struct nft_af_info *afi;
 	struct nft_table *table;
 	struct nft_chain *chain;
+	struct net *net = sock_net(skb->sk);
 	int family = nfmsg->nfgen_family;
 
-	afi = nf_tables_afinfo_lookup(family, false);
+	afi = nf_tables_afinfo_lookup(net, family, false);
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
@@ -1050,6 +1059,7 @@ static void nft_ctx_init(struct nft_ctx *ctx,
 			 const struct nft_chain *chain,
 			 const struct nlattr * const *nla)
 {
+	ctx->net   = sock_net(skb->sk);
 	ctx->skb   = skb;
 	ctx->nlh   = nlh;
 	ctx->afi   = afi;
@@ -1361,9 +1371,10 @@ static int nf_tables_dump_rules(struct sk_buff *skb,
 	const struct nft_chain *chain;
 	const struct nft_rule *rule;
 	unsigned int idx = 0, s_idx = cb->args[0];
+	struct net *net = sock_net(skb->sk);
 	int family = nfmsg->nfgen_family;
 
-	list_for_each_entry(afi, &nf_tables_afinfo, list) {
+	list_for_each_entry(afi, &net->nft.af_info, list) {
 		if (family != NFPROTO_UNSPEC && family != afi->family)
 			continue;
 
@@ -1402,6 +1413,7 @@ static int nf_tables_getrule(struct sock *nlsk, struct sk_buff *skb,
 	const struct nft_chain *chain;
 	const struct nft_rule *rule;
 	struct sk_buff *skb2;
+	struct net *net = sock_net(skb->sk);
 	int family = nfmsg->nfgen_family;
 	int err;
 
@@ -1412,7 +1424,7 @@ static int nf_tables_getrule(struct sock *nlsk, struct sk_buff *skb,
 		return netlink_dump_start(nlsk, skb, nlh, &c);
 	}
 
-	afi = nf_tables_afinfo_lookup(family, false);
+	afi = nf_tables_afinfo_lookup(net, family, false);
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
@@ -1477,6 +1489,7 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 {
 	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 	const struct nft_af_info *afi;
+	struct net *net = sock_net(skb->sk);
 	struct nft_table *table;
 	struct nft_chain *chain;
 	struct nft_rule *rule, *old_rule = NULL;
@@ -1490,7 +1503,7 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 
 	create = nlh->nlmsg_flags & NLM_F_CREATE ? true : false;
 
-	afi = nf_tables_afinfo_lookup(nfmsg->nfgen_family, create);
+	afi = nf_tables_afinfo_lookup(net, nfmsg->nfgen_family, create);
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
@@ -1585,12 +1598,13 @@ static int nf_tables_delrule(struct sock *nlsk, struct sk_buff *skb,
 {
 	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 	const struct nft_af_info *afi;
+	struct net *net = sock_net(skb->sk);
 	const struct nft_table *table;
 	struct nft_chain *chain;
 	struct nft_rule *rule, *tmp;
 	int family = nfmsg->nfgen_family;
 
-	afi = nf_tables_afinfo_lookup(family, false);
+	afi = nf_tables_afinfo_lookup(net, family, false);
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
@@ -1697,11 +1711,12 @@ static int nft_ctx_init_from_setattr(struct nft_ctx *ctx,
 				     const struct nlmsghdr *nlh,
 				     const struct nlattr * const nla[])
 {
+	struct net *net = sock_net(skb->sk);
 	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 	const struct nft_af_info *afi;
 	const struct nft_table *table = NULL;
 
-	afi = nf_tables_afinfo_lookup(nfmsg->nfgen_family, false);
+	afi = nf_tables_afinfo_lookup(net, nfmsg->nfgen_family, false);
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
@@ -1818,12 +1833,11 @@ static int nf_tables_set_notify(const struct nft_ctx *ctx,
 {
 	struct sk_buff *skb;
 	u32 portid = NETLINK_CB(ctx->skb).portid;
-	struct net *net = sock_net(ctx->skb->sk);
 	bool report;
 	int err;
 
 	report = nlmsg_report(ctx->nlh);
-	if (!report && !nfnetlink_has_listeners(net, NFNLGRP_NFTABLES))
+	if (!report && !nfnetlink_has_listeners(ctx->net, NFNLGRP_NFTABLES))
 		return 0;
 
 	err = -ENOBUFS;
@@ -1837,11 +1851,11 @@ static int nf_tables_set_notify(const struct nft_ctx *ctx,
 		goto err;
 	}
 
-	err = nfnetlink_send(skb, net, portid, NFNLGRP_NFTABLES, report,
+	err = nfnetlink_send(skb, ctx->net, portid, NFNLGRP_NFTABLES, report,
 			     GFP_KERNEL);
 err:
 	if (err < 0)
-		nfnetlink_set_err(net, portid, NFNLGRP_NFTABLES, err);
+		nfnetlink_set_err(ctx->net, portid, NFNLGRP_NFTABLES, err);
 	return err;
 }
 
@@ -1974,6 +1988,7 @@ static int nf_tables_newset(struct sock *nlsk, struct sk_buff *skb,
 	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 	const struct nft_set_ops *ops;
 	const struct nft_af_info *afi;
+	struct net *net = sock_net(skb->sk);
 	struct nft_table *table;
 	struct nft_set *set;
 	struct nft_ctx ctx;
@@ -2032,7 +2047,7 @@ static int nf_tables_newset(struct sock *nlsk, struct sk_buff *skb,
 
 	create = nlh->nlmsg_flags & NLM_F_CREATE ? true : false;
 
-	afi = nf_tables_afinfo_lookup(nfmsg->nfgen_family, create);
+	afi = nf_tables_afinfo_lookup(net, nfmsg->nfgen_family, create);
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
@@ -2219,8 +2234,9 @@ static int nft_ctx_init_from_elemattr(struct nft_ctx *ctx,
 	const struct nfgenmsg *nfmsg = nlmsg_data(nlh);
 	const struct nft_af_info *afi;
 	const struct nft_table *table;
+	struct net *net = sock_net(skb->sk);
 
-	afi = nf_tables_afinfo_lookup(nfmsg->nfgen_family, false);
+	afi = nf_tables_afinfo_lookup(net, nfmsg->nfgen_family, false);
 	if (IS_ERR(afi))
 		return PTR_ERR(afi);
 
@@ -3011,6 +3027,16 @@ int nft_data_dump(struct sk_buff *skb, int attr, const struct nft_data *data,
 }
 EXPORT_SYMBOL_GPL(nft_data_dump);
 
+static int nf_tables_init_net(struct net *net)
+{
+	INIT_LIST_HEAD(&net->nft.af_info);
+	return 0;
+}
+
+static struct pernet_operations nf_tables_net_ops = {
+	.init	= nf_tables_init_net,
+};
+
 static int __init nf_tables_module_init(void)
 {
 	int err;
@@ -3031,7 +3057,7 @@ static int __init nf_tables_module_init(void)
 		goto err3;
 
 	pr_info("nf_tables: (c) 2007-2009 Patrick McHardy <kaber@trash.net>\n");
-	return 0;
+	return register_pernet_subsys(&nf_tables_net_ops);
 err3:
 	nf_tables_core_module_exit();
 err2:
@@ -3042,6 +3068,7 @@ err1:
 
 static void __exit nf_tables_module_exit(void)
 {
+	unregister_pernet_subsys(&nf_tables_net_ops);
 	nfnetlink_subsys_unregister(&nf_tables_subsys);
 	nf_tables_core_module_exit();
 	kfree(info);
-- 
cgit 


From 5e94846686d027a4c8ecc5d9d52b18036d3e8f7a Mon Sep 17 00:00:00 2001
From: Eric Leblond <eric@regit.org>
Date: Thu, 10 Oct 2013 13:41:44 +0200
Subject: netfilter: nf_tables: add insert operation

This patch adds a new rule attribute NFTA_RULE_POSITION which is
used to store the position of a rule relatively to the others.
By providing the create command and specifying the position, the
rule is inserted after the rule with the handle equal to the
provided position.

Regarding notification, the position attribute specifies the
handle of the previous rule to make sure we don't point to any
stale rule in notifications coming from the commit path.

This patch includes the following fix from Pablo:

* nf_tables: fix rule deletion event reporting

Signed-off-by: Eric Leblond <eric@regit.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/uapi/linux/netfilter/nf_tables.h |  2 ++
 net/netfilter/nf_tables_api.c            | 38 +++++++++++++++++++++++++++-----
 2 files changed, 34 insertions(+), 6 deletions(-)

diff --git a/include/uapi/linux/netfilter/nf_tables.h b/include/uapi/linux/netfilter/nf_tables.h
index 7d4a1992f89c..fbfd229a8e99 100644
--- a/include/uapi/linux/netfilter/nf_tables.h
+++ b/include/uapi/linux/netfilter/nf_tables.h
@@ -153,6 +153,7 @@ enum nft_chain_attributes {
  * @NFTA_RULE_HANDLE: numeric handle of the rule (NLA_U64)
  * @NFTA_RULE_EXPRESSIONS: list of expressions (NLA_NESTED: nft_expr_attributes)
  * @NFTA_RULE_COMPAT: compatibility specifications of the rule (NLA_NESTED: nft_rule_compat_attributes)
+ * @NFTA_RULE_POSITION: numeric handle of the previous rule (NLA_U64)
  */
 enum nft_rule_attributes {
 	NFTA_RULE_UNSPEC,
@@ -161,6 +162,7 @@ enum nft_rule_attributes {
 	NFTA_RULE_HANDLE,
 	NFTA_RULE_EXPRESSIONS,
 	NFTA_RULE_COMPAT,
+	NFTA_RULE_POSITION,
 	__NFTA_RULE_MAX
 };
 #define NFTA_RULE_MAX		(__NFTA_RULE_MAX - 1)
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index e1ee85047ec1..0f140663ec71 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -1273,6 +1273,7 @@ static const struct nla_policy nft_rule_policy[NFTA_RULE_MAX + 1] = {
 	[NFTA_RULE_HANDLE]	= { .type = NLA_U64 },
 	[NFTA_RULE_EXPRESSIONS]	= { .type = NLA_NESTED },
 	[NFTA_RULE_COMPAT]	= { .type = NLA_NESTED },
+	[NFTA_RULE_POSITION]	= { .type = NLA_U64 },
 };
 
 static int nf_tables_fill_rule_info(struct sk_buff *skb, u32 portid, u32 seq,
@@ -1285,9 +1286,10 @@ static int nf_tables_fill_rule_info(struct sk_buff *skb, u32 portid, u32 seq,
 	struct nfgenmsg *nfmsg;
 	const struct nft_expr *expr, *next;
 	struct nlattr *list;
+	const struct nft_rule *prule;
+	int type = event | NFNL_SUBSYS_NFTABLES << 8;
 
-	event |= NFNL_SUBSYS_NFTABLES << 8;
-	nlh = nlmsg_put(skb, portid, seq, event, sizeof(struct nfgenmsg),
+	nlh = nlmsg_put(skb, portid, seq, type, sizeof(struct nfgenmsg),
 			flags);
 	if (nlh == NULL)
 		goto nla_put_failure;
@@ -1304,6 +1306,13 @@ static int nf_tables_fill_rule_info(struct sk_buff *skb, u32 portid, u32 seq,
 	if (nla_put_be64(skb, NFTA_RULE_HANDLE, cpu_to_be64(rule->handle)))
 		goto nla_put_failure;
 
+	if ((event != NFT_MSG_DELRULE) && (rule->list.prev != &chain->rules)) {
+		prule = list_entry(rule->list.prev, struct nft_rule, list);
+		if (nla_put_be64(skb, NFTA_RULE_POSITION,
+				 cpu_to_be64(prule->handle)))
+			goto nla_put_failure;
+	}
+
 	list = nla_nest_start(skb, NFTA_RULE_EXPRESSIONS);
 	if (list == NULL)
 		goto nla_put_failure;
@@ -1499,7 +1508,7 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 	unsigned int size, i, n;
 	int err, rem;
 	bool create;
-	u64 handle;
+	u64 handle, pos_handle;
 
 	create = nlh->nlmsg_flags & NLM_F_CREATE ? true : false;
 
@@ -1533,6 +1542,16 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 		handle = nf_tables_alloc_handle(table);
 	}
 
+	if (nla[NFTA_RULE_POSITION]) {
+		if (!(nlh->nlmsg_flags & NLM_F_CREATE))
+			return -EOPNOTSUPP;
+
+		pos_handle = be64_to_cpu(nla_get_be64(nla[NFTA_RULE_POSITION]));
+		old_rule = __nf_tables_rule_lookup(chain, pos_handle);
+		if (IS_ERR(old_rule))
+			return PTR_ERR(old_rule);
+	}
+
 	nft_ctx_init(&ctx, skb, nlh, afi, table, chain, nla);
 
 	n = 0;
@@ -1573,9 +1592,16 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 		list_replace_rcu(&old_rule->list, &rule->list);
 		nf_tables_rule_destroy(old_rule);
 	} else if (nlh->nlmsg_flags & NLM_F_APPEND)
-		list_add_tail_rcu(&rule->list, &chain->rules);
-	else
-		list_add_rcu(&rule->list, &chain->rules);
+		if (old_rule)
+			list_add_rcu(&rule->list, &old_rule->list);
+		else
+			list_add_tail_rcu(&rule->list, &chain->rules);
+	else {
+		if (old_rule)
+			list_add_tail_rcu(&rule->list, &old_rule->list);
+		else
+			list_add_rcu(&rule->list, &chain->rules);
+	}
 
 	nf_tables_rule_notify(skb, nlh, table, chain, rule, NFT_MSG_NEWRULE,
 			      nlh->nlmsg_flags & (NLM_F_APPEND | NLM_F_REPLACE),
-- 
cgit 


From 0628b123c96d126e617beb3b4fd63b874d0e4f17 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Mon, 14 Oct 2013 11:05:33 +0200
Subject: netfilter: nfnetlink: add batch support and use it from nf_tables

This patch adds a batch support to nfnetlink. Basically, it adds
two new control messages:

* NFNL_MSG_BATCH_BEGIN, that indicates the beginning of a batch,
  the nfgenmsg->res_id indicates the nfnetlink subsystem ID.

* NFNL_MSG_BATCH_END, that results in the invocation of the
  ss->commit callback function. If not specified or an error
  ocurred in the batch, the ss->abort function is invoked
  instead.

The end message represents the commit operation in nftables, the
lack of end message results in an abort. This patch also adds the
.call_batch function that is only called from the batch receival
path.

This patch adds atomic rule updates and dumps based on
bitmask generations. This allows to atomically commit a set of
rule-set updates incrementally without altering the internal
state of existing nf_tables expressions/matches/targets.

The idea consists of using a generation cursor of 1 bit and
a bitmask of 2 bits per rule. Assuming the gencursor is 0,
then the genmask (expressed as a bitmask) can be interpreted
as:

00 active in the present, will be active in the next generation.
01 inactive in the present, will be active in the next generation.
10 active in the present, will be deleted in the next generation.
 ^
 gencursor

Once you invoke the transition to the next generation, the global
gencursor is updated:

00 active in the present, will be active in the next generation.
01 active in the present, needs to zero its future, it becomes 00.
10 inactive in the present, delete now.
^
gencursor

If a dump is in progress and nf_tables enters a new generation,
the dump will stop and return -EBUSY to let userspace know that
it has to retry again. In order to invalidate dumps, a global
genctr counter is increased everytime nf_tables enters a new
generation.

This new operation can be used from the user-space utility
that controls the firewall, eg.

nft -f restore

The rule updates contained in `file' will be applied atomically.

cat file
-----
add filter INPUT ip saddr 1.1.1.1 counter accept #1
del filter INPUT ip daddr 2.2.2.2 counter drop   #2
-EOF-

Note that the rule 1 will be inactive until the transition to the
next generation, the rule 2 will be evicted in the next generation.

There is a penalty during the rule update due to the branch
misprediction in the packet matching framework. But that should be
quickly resolved once the iteration over the commit list that
contain rules that require updates is finished.

Event notification happens once the rule-set update has been
committed. So we skip notifications is case the rule-set update
is aborted, which can happen in case that the rule-set is tested
to apply correctly.

This patch squashed the following patches from Pablo:

* nf_tables: atomic rule updates and dumps
* nf_tables: get rid of per rule list_head for commits
* nf_tables: use per netns commit list
* nfnetlink: add batch support and use it from nf_tables
* nf_tables: all rule updates are transactional
* nf_tables: attach replacement rule after stale one
* nf_tables: do not allow deletion/replacement of stale rules
* nf_tables: remove unused NFTA_RULE_FLAGS

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/linux/netfilter/nfnetlink.h      |   5 +
 include/net/netfilter/nf_tables.h        |  25 +++-
 include/net/netns/nftables.h             |   3 +
 include/uapi/linux/netfilter/nfnetlink.h |   4 +
 net/netfilter/nf_tables_api.c            | 202 ++++++++++++++++++++++++++++---
 net/netfilter/nf_tables_core.c           |  10 ++
 net/netfilter/nfnetlink.c                | 175 +++++++++++++++++++++++++-
 7 files changed, 401 insertions(+), 23 deletions(-)

diff --git a/include/linux/netfilter/nfnetlink.h b/include/linux/netfilter/nfnetlink.h
index 4f68cd7141d2..28c74367e900 100644
--- a/include/linux/netfilter/nfnetlink.h
+++ b/include/linux/netfilter/nfnetlink.h
@@ -14,6 +14,9 @@ struct nfnl_callback {
 	int (*call_rcu)(struct sock *nl, struct sk_buff *skb, 
 		    const struct nlmsghdr *nlh,
 		    const struct nlattr * const cda[]);
+	int (*call_batch)(struct sock *nl, struct sk_buff *skb,
+			  const struct nlmsghdr *nlh,
+			  const struct nlattr * const cda[]);
 	const struct nla_policy *policy;	/* netlink attribute policy */
 	const u_int16_t attr_count;		/* number of nlattr's */
 };
@@ -23,6 +26,8 @@ struct nfnetlink_subsystem {
 	__u8 subsys_id;			/* nfnetlink subsystem ID */
 	__u8 cb_count;			/* number of callbacks */
 	const struct nfnl_callback *cb;	/* callback for individual types */
+	int (*commit)(struct sk_buff *skb);
+	int (*abort)(struct sk_buff *skb);
 };
 
 int nfnetlink_subsys_register(const struct nfnetlink_subsystem *n);
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index d3272e943aac..975ad3c573c7 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -323,18 +323,39 @@ static inline void *nft_expr_priv(const struct nft_expr *expr)
  *	@list: used internally
  *	@rcu_head: used internally for rcu
  *	@handle: rule handle
+ *	@genmask: generation mask
  *	@dlen: length of expression data
  *	@data: expression data
  */
 struct nft_rule {
 	struct list_head		list;
 	struct rcu_head			rcu_head;
-	u64				handle:48,
+	u64				handle:46,
+					genmask:2,
 					dlen:16;
 	unsigned char			data[]
 		__attribute__((aligned(__alignof__(struct nft_expr))));
 };
 
+/**
+ *	struct nft_rule_trans - nf_tables rule update in transaction
+ *
+ *	@list: used internally
+ *	@rule: rule that needs to be updated
+ *	@chain: chain that this rule belongs to
+ *	@table: table for which this chain applies
+ *	@nlh: netlink header of the message that contain this update
+ *	@family: family expressesed as AF_*
+ */
+struct nft_rule_trans {
+	struct list_head		list;
+	struct nft_rule			*rule;
+	const struct nft_chain		*chain;
+	const struct nft_table		*table;
+	const struct nlmsghdr		*nlh;
+	u8				family;
+};
+
 static inline struct nft_expr *nft_expr_first(const struct nft_rule *rule)
 {
 	return (struct nft_expr *)&rule->data[0];
@@ -370,6 +391,7 @@ enum nft_chain_flags {
  *	@rules: list of rules in the chain
  *	@list: used internally
  *	@rcu_head: used internally
+ *	@net: net namespace that this chain belongs to
  *	@handle: chain handle
  *	@flags: bitmask of enum nft_chain_flags
  *	@use: number of jump references to this chain
@@ -380,6 +402,7 @@ struct nft_chain {
 	struct list_head		rules;
 	struct list_head		list;
 	struct rcu_head			rcu_head;
+	struct net			*net;
 	u64				handle;
 	u8				flags;
 	u16				use;
diff --git a/include/net/netns/nftables.h b/include/net/netns/nftables.h
index a98b1c5d9913..08a4248a12b5 100644
--- a/include/net/netns/nftables.h
+++ b/include/net/netns/nftables.h
@@ -7,9 +7,12 @@ struct nft_af_info;
 
 struct netns_nftables {
 	struct list_head	af_info;
+	struct list_head	commit_list;
 	struct nft_af_info	*ipv4;
 	struct nft_af_info	*ipv6;
 	struct nft_af_info	*bridge;
+	u8			gencursor;
+	u8			genctr;
 };
 
 #endif
diff --git a/include/uapi/linux/netfilter/nfnetlink.h b/include/uapi/linux/netfilter/nfnetlink.h
index 288959404d54..596ddd45253c 100644
--- a/include/uapi/linux/netfilter/nfnetlink.h
+++ b/include/uapi/linux/netfilter/nfnetlink.h
@@ -57,4 +57,8 @@ struct nfgenmsg {
 #define NFNL_SUBSYS_NFT_COMPAT		11
 #define NFNL_SUBSYS_COUNT		12
 
+/* Reserved control nfnetlink messages */
+#define NFNL_MSG_BATCH_BEGIN		NLMSG_MIN_TYPE
+#define NFNL_MSG_BATCH_END		NLMSG_MIN_TYPE+1
+
 #endif /* _UAPI_NFNETLINK_H */
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 0f140663ec71..79e1418a6043 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -978,6 +978,7 @@ static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
 
 	INIT_LIST_HEAD(&chain->rules);
 	chain->handle = nf_tables_alloc_handle(table);
+	chain->net = net;
 	nla_strlcpy(chain->name, name, NFT_CHAIN_MAXNAMELEN);
 
 	if (!(table->flags & NFT_TABLE_F_DORMANT) &&
@@ -1371,6 +1372,41 @@ err:
 	return err;
 }
 
+static inline bool
+nft_rule_is_active(struct net *net, const struct nft_rule *rule)
+{
+	return (rule->genmask & (1 << net->nft.gencursor)) == 0;
+}
+
+static inline int gencursor_next(struct net *net)
+{
+	return net->nft.gencursor+1 == 1 ? 1 : 0;
+}
+
+static inline int
+nft_rule_is_active_next(struct net *net, const struct nft_rule *rule)
+{
+	return (rule->genmask & (1 << gencursor_next(net))) == 0;
+}
+
+static inline void
+nft_rule_activate_next(struct net *net, struct nft_rule *rule)
+{
+	/* Now inactive, will be active in the future */
+	rule->genmask = (1 << net->nft.gencursor);
+}
+
+static inline void
+nft_rule_disactivate_next(struct net *net, struct nft_rule *rule)
+{
+	rule->genmask = (1 << gencursor_next(net));
+}
+
+static inline void nft_rule_clear(struct net *net, struct nft_rule *rule)
+{
+	rule->genmask = 0;
+}
+
 static int nf_tables_dump_rules(struct sk_buff *skb,
 				struct netlink_callback *cb)
 {
@@ -1382,6 +1418,8 @@ static int nf_tables_dump_rules(struct sk_buff *skb,
 	unsigned int idx = 0, s_idx = cb->args[0];
 	struct net *net = sock_net(skb->sk);
 	int family = nfmsg->nfgen_family;
+	u8 genctr = ACCESS_ONCE(net->nft.genctr);
+	u8 gencursor = ACCESS_ONCE(net->nft.gencursor);
 
 	list_for_each_entry(afi, &net->nft.af_info, list) {
 		if (family != NFPROTO_UNSPEC && family != afi->family)
@@ -1390,6 +1428,8 @@ static int nf_tables_dump_rules(struct sk_buff *skb,
 		list_for_each_entry(table, &afi->tables, list) {
 			list_for_each_entry(chain, &table->chains, list) {
 				list_for_each_entry(rule, &chain->rules, list) {
+					if (!nft_rule_is_active(net, rule))
+						goto cont;
 					if (idx < s_idx)
 						goto cont;
 					if (idx > s_idx)
@@ -1408,6 +1448,10 @@ cont:
 		}
 	}
 done:
+	/* Invalidate this dump, a transition to the new generation happened */
+	if (gencursor != net->nft.gencursor || genctr != net->nft.genctr)
+		return -EBUSY;
+
 	cb->args[0] = idx;
 	return skb->len;
 }
@@ -1492,6 +1536,25 @@ static void nf_tables_rule_destroy(struct nft_rule *rule)
 
 static struct nft_expr_info *info;
 
+static struct nft_rule_trans *
+nf_tables_trans_add(struct nft_rule *rule, const struct nft_ctx *ctx)
+{
+	struct nft_rule_trans *rupd;
+
+	rupd = kmalloc(sizeof(struct nft_rule_trans), GFP_KERNEL);
+	if (rupd == NULL)
+	       return NULL;
+
+	rupd->chain = ctx->chain;
+	rupd->table = ctx->table;
+	rupd->rule = rule;
+	rupd->family = ctx->afi->family;
+	rupd->nlh = ctx->nlh;
+	list_add_tail(&rupd->list, &ctx->net->nft.commit_list);
+
+	return rupd;
+}
+
 static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 			     const struct nlmsghdr *nlh,
 			     const struct nlattr * const nla[])
@@ -1502,6 +1565,7 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 	struct nft_table *table;
 	struct nft_chain *chain;
 	struct nft_rule *rule, *old_rule = NULL;
+	struct nft_rule_trans *repl = NULL;
 	struct nft_expr *expr;
 	struct nft_ctx ctx;
 	struct nlattr *tmp;
@@ -1576,6 +1640,8 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 	if (rule == NULL)
 		goto err1;
 
+	nft_rule_activate_next(net, rule);
+
 	rule->handle = handle;
 	rule->dlen   = size;
 
@@ -1589,8 +1655,18 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 	}
 
 	if (nlh->nlmsg_flags & NLM_F_REPLACE) {
-		list_replace_rcu(&old_rule->list, &rule->list);
-		nf_tables_rule_destroy(old_rule);
+		if (nft_rule_is_active_next(net, old_rule)) {
+			repl = nf_tables_trans_add(old_rule, &ctx);
+			if (repl == NULL) {
+				err = -ENOMEM;
+				goto err2;
+			}
+			nft_rule_disactivate_next(net, old_rule);
+			list_add_tail(&rule->list, &old_rule->list);
+		} else {
+			err = -ENOENT;
+			goto err2;
+		}
 	} else if (nlh->nlmsg_flags & NLM_F_APPEND)
 		if (old_rule)
 			list_add_rcu(&rule->list, &old_rule->list);
@@ -1603,11 +1679,20 @@ static int nf_tables_newrule(struct sock *nlsk, struct sk_buff *skb,
 			list_add_rcu(&rule->list, &chain->rules);
 	}
 
-	nf_tables_rule_notify(skb, nlh, table, chain, rule, NFT_MSG_NEWRULE,
-			      nlh->nlmsg_flags & (NLM_F_APPEND | NLM_F_REPLACE),
-			      nfmsg->nfgen_family);
+	if (nf_tables_trans_add(rule, &ctx) == NULL) {
+		err = -ENOMEM;
+		goto err3;
+	}
 	return 0;
 
+err3:
+	list_del_rcu(&rule->list);
+	if (repl) {
+		list_del_rcu(&repl->rule->list);
+		list_del(&repl->list);
+		nft_rule_clear(net, repl->rule);
+		kfree(repl);
+	}
 err2:
 	nf_tables_rule_destroy(rule);
 err1:
@@ -1618,6 +1703,19 @@ err1:
 	return err;
 }
 
+static int
+nf_tables_delrule_one(struct nft_ctx *ctx, struct nft_rule *rule)
+{
+	/* You cannot delete the same rule twice */
+	if (nft_rule_is_active_next(ctx->net, rule)) {
+		if (nf_tables_trans_add(rule, ctx) == NULL)
+			return -ENOMEM;
+		nft_rule_disactivate_next(ctx->net, rule);
+		return 0;
+	}
+	return -ENOENT;
+}
+
 static int nf_tables_delrule(struct sock *nlsk, struct sk_buff *skb,
 			     const struct nlmsghdr *nlh,
 			     const struct nlattr * const nla[])
@@ -1628,7 +1726,8 @@ static int nf_tables_delrule(struct sock *nlsk, struct sk_buff *skb,
 	const struct nft_table *table;
 	struct nft_chain *chain;
 	struct nft_rule *rule, *tmp;
-	int family = nfmsg->nfgen_family;
+	int family = nfmsg->nfgen_family, err = 0;
+	struct nft_ctx ctx;
 
 	afi = nf_tables_afinfo_lookup(net, family, false);
 	if (IS_ERR(afi))
@@ -1642,31 +1741,95 @@ static int nf_tables_delrule(struct sock *nlsk, struct sk_buff *skb,
 	if (IS_ERR(chain))
 		return PTR_ERR(chain);
 
+	nft_ctx_init(&ctx, skb, nlh, afi, table, chain, nla);
+
 	if (nla[NFTA_RULE_HANDLE]) {
 		rule = nf_tables_rule_lookup(chain, nla[NFTA_RULE_HANDLE]);
 		if (IS_ERR(rule))
 			return PTR_ERR(rule);
 
-		/* List removal must be visible before destroying expressions */
-		list_del_rcu(&rule->list);
-
-		nf_tables_rule_notify(skb, nlh, table, chain, rule,
-				      NFT_MSG_DELRULE, 0, family);
-		nf_tables_rule_destroy(rule);
+		err = nf_tables_delrule_one(&ctx, rule);
 	} else {
 		/* Remove all rules in this chain */
 		list_for_each_entry_safe(rule, tmp, &chain->rules, list) {
-			list_del_rcu(&rule->list);
+			err = nf_tables_delrule_one(&ctx, rule);
+			if (err < 0)
+				break;
+		}
+	}
+
+	return err;
+}
+
+static int nf_tables_commit(struct sk_buff *skb)
+{
+	struct net *net = sock_net(skb->sk);
+	struct nft_rule_trans *rupd, *tmp;
 
-			nf_tables_rule_notify(skb, nlh, table, chain, rule,
-					      NFT_MSG_DELRULE, 0, family);
-			nf_tables_rule_destroy(rule);
+	/* Bump generation counter, invalidate any dump in progress */
+	net->nft.genctr++;
+
+	/* A new generation has just started */
+	net->nft.gencursor = gencursor_next(net);
+
+	/* Make sure all packets have left the previous generation before
+	 * purging old rules.
+	 */
+	synchronize_rcu();
+
+	list_for_each_entry_safe(rupd, tmp, &net->nft.commit_list, list) {
+		/* Delete this rule from the dirty list */
+		list_del(&rupd->list);
+
+		/* This rule was inactive in the past and just became active.
+		 * Clear the next bit of the genmask since its meaning has
+		 * changed, now it is the future.
+		 */
+		if (nft_rule_is_active(net, rupd->rule)) {
+			nft_rule_clear(net, rupd->rule);
+			nf_tables_rule_notify(skb, rupd->nlh, rupd->table,
+					      rupd->chain, rupd->rule,
+					      NFT_MSG_NEWRULE, 0,
+					      rupd->family);
+			kfree(rupd);
+			continue;
 		}
+
+		/* This rule is in the past, get rid of it */
+		list_del_rcu(&rupd->rule->list);
+		nf_tables_rule_notify(skb, rupd->nlh, rupd->table, rupd->chain,
+				      rupd->rule, NFT_MSG_DELRULE, 0,
+				      rupd->family);
+		nf_tables_rule_destroy(rupd->rule);
+		kfree(rupd);
 	}
 
 	return 0;
 }
 
+static int nf_tables_abort(struct sk_buff *skb)
+{
+	struct net *net = sock_net(skb->sk);
+	struct nft_rule_trans *rupd, *tmp;
+
+	list_for_each_entry_safe(rupd, tmp, &net->nft.commit_list, list) {
+		/* Delete all rules from the dirty list */
+		list_del(&rupd->list);
+
+		if (!nft_rule_is_active_next(net, rupd->rule)) {
+			nft_rule_clear(net, rupd->rule);
+			kfree(rupd);
+			continue;
+		}
+
+		/* This rule is inactive, get rid of it */
+		list_del_rcu(&rupd->rule->list);
+		nf_tables_rule_destroy(rupd->rule);
+		kfree(rupd);
+	}
+	return 0;
+}
+
 /*
  * Sets
  */
@@ -2634,7 +2797,7 @@ static const struct nfnl_callback nf_tables_cb[NFT_MSG_MAX] = {
 		.policy		= nft_chain_policy,
 	},
 	[NFT_MSG_NEWRULE] = {
-		.call		= nf_tables_newrule,
+		.call_batch	= nf_tables_newrule,
 		.attr_count	= NFTA_RULE_MAX,
 		.policy		= nft_rule_policy,
 	},
@@ -2644,7 +2807,7 @@ static const struct nfnl_callback nf_tables_cb[NFT_MSG_MAX] = {
 		.policy		= nft_rule_policy,
 	},
 	[NFT_MSG_DELRULE] = {
-		.call		= nf_tables_delrule,
+		.call_batch	= nf_tables_delrule,
 		.attr_count	= NFTA_RULE_MAX,
 		.policy		= nft_rule_policy,
 	},
@@ -2685,6 +2848,8 @@ static const struct nfnetlink_subsystem nf_tables_subsys = {
 	.subsys_id	= NFNL_SUBSYS_NFTABLES,
 	.cb_count	= NFT_MSG_MAX,
 	.cb		= nf_tables_cb,
+	.commit		= nf_tables_commit,
+	.abort		= nf_tables_abort,
 };
 
 /*
@@ -3056,6 +3221,7 @@ EXPORT_SYMBOL_GPL(nft_data_dump);
 static int nf_tables_init_net(struct net *net)
 {
 	INIT_LIST_HEAD(&net->nft.af_info);
+	INIT_LIST_HEAD(&net->nft.commit_list);
 	return 0;
 }
 
diff --git a/net/netfilter/nf_tables_core.c b/net/netfilter/nf_tables_core.c
index 3c13007d80df..d581ef660248 100644
--- a/net/netfilter/nf_tables_core.c
+++ b/net/netfilter/nf_tables_core.c
@@ -88,12 +88,22 @@ nft_do_chain_pktinfo(struct nft_pktinfo *pkt, const struct nf_hook_ops *ops)
 	struct nft_data data[NFT_REG_MAX + 1];
 	unsigned int stackptr = 0;
 	struct nft_jumpstack jumpstack[NFT_JUMP_STACK_SIZE];
+	/*
+	 * Cache cursor to avoid problems in case that the cursor is updated
+	 * while traversing the ruleset.
+	 */
+	unsigned int gencursor = ACCESS_ONCE(chain->net->nft.gencursor);
 
 do_chain:
 	rule = list_entry(&chain->rules, struct nft_rule, list);
 next_rule:
 	data[NFT_REG_VERDICT].verdict = NFT_CONTINUE;
 	list_for_each_entry_continue_rcu(rule, &chain->rules, list) {
+
+		/* This rule is not active, skip. */
+		if (unlikely(rule->genmask & (1 << gencursor)))
+			continue;
+
 		nft_rule_for_each_expr(expr, last, rule) {
 			if (expr->ops == &nft_cmp_fast_ops)
 				nft_cmp_fast_eval(expr, data);
diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c
index 572d87dc116f..027f16af51a0 100644
--- a/net/netfilter/nfnetlink.c
+++ b/net/netfilter/nfnetlink.c
@@ -147,9 +147,6 @@ static int nfnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 	const struct nfnetlink_subsystem *ss;
 	int type, err;
 
-	if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
-		return -EPERM;
-
 	/* All the messages must at least contain nfgenmsg */
 	if (nlmsg_len(nlh) < sizeof(struct nfgenmsg))
 		return 0;
@@ -217,9 +214,179 @@ replay:
 	}
 }
 
+static void nfnetlink_rcv_batch(struct sk_buff *skb, struct nlmsghdr *nlh,
+				u_int16_t subsys_id)
+{
+	struct sk_buff *nskb, *oskb = skb;
+	struct net *net = sock_net(skb->sk);
+	const struct nfnetlink_subsystem *ss;
+	const struct nfnl_callback *nc;
+	bool success = true, done = false;
+	int err;
+
+	if (subsys_id >= NFNL_SUBSYS_COUNT)
+		return netlink_ack(skb, nlh, -EINVAL);
+replay:
+	nskb = netlink_skb_clone(oskb, GFP_KERNEL);
+	if (!nskb)
+		return netlink_ack(oskb, nlh, -ENOMEM);
+
+	nskb->sk = oskb->sk;
+	skb = nskb;
+
+	nfnl_lock(subsys_id);
+	ss = rcu_dereference_protected(table[subsys_id].subsys,
+				       lockdep_is_held(&table[subsys_id].mutex));
+	if (!ss) {
+#ifdef CONFIG_MODULES
+		nfnl_unlock(subsys_id);
+		request_module("nfnetlink-subsys-%d", subsys_id);
+		nfnl_lock(subsys_id);
+		ss = rcu_dereference_protected(table[subsys_id].subsys,
+					       lockdep_is_held(&table[subsys_id].mutex));
+		if (!ss)
+#endif
+		{
+			nfnl_unlock(subsys_id);
+			kfree_skb(nskb);
+			return netlink_ack(skb, nlh, -EOPNOTSUPP);
+		}
+	}
+
+	if (!ss->commit || !ss->abort) {
+		nfnl_unlock(subsys_id);
+		kfree_skb(nskb);
+		return netlink_ack(skb, nlh, -EOPNOTSUPP);
+	}
+
+	while (skb->len >= nlmsg_total_size(0)) {
+		int msglen, type;
+
+		nlh = nlmsg_hdr(skb);
+		err = 0;
+
+		if (nlh->nlmsg_len < NLMSG_HDRLEN) {
+			err = -EINVAL;
+			goto ack;
+		}
+
+		/* Only requests are handled by the kernel */
+		if (!(nlh->nlmsg_flags & NLM_F_REQUEST)) {
+			err = -EINVAL;
+			goto ack;
+		}
+
+		type = nlh->nlmsg_type;
+		if (type == NFNL_MSG_BATCH_BEGIN) {
+			/* Malformed: Batch begin twice */
+			success = false;
+			goto done;
+		} else if (type == NFNL_MSG_BATCH_END) {
+			done = true;
+			goto done;
+		} else if (type < NLMSG_MIN_TYPE) {
+			err = -EINVAL;
+			goto ack;
+		}
+
+		/* We only accept a batch with messages for the same
+		 * subsystem.
+		 */
+		if (NFNL_SUBSYS_ID(type) != subsys_id) {
+			err = -EINVAL;
+			goto ack;
+		}
+
+		nc = nfnetlink_find_client(type, ss);
+		if (!nc) {
+			err = -EINVAL;
+			goto ack;
+		}
+
+		{
+			int min_len = nlmsg_total_size(sizeof(struct nfgenmsg));
+			u_int8_t cb_id = NFNL_MSG_TYPE(nlh->nlmsg_type);
+			struct nlattr *cda[ss->cb[cb_id].attr_count + 1];
+			struct nlattr *attr = (void *)nlh + min_len;
+			int attrlen = nlh->nlmsg_len - min_len;
+
+			err = nla_parse(cda, ss->cb[cb_id].attr_count,
+					attr, attrlen, ss->cb[cb_id].policy);
+			if (err < 0)
+				goto ack;
+
+			if (nc->call_batch) {
+				err = nc->call_batch(net->nfnl, skb, nlh,
+						     (const struct nlattr **)cda);
+			}
+
+			/* The lock was released to autoload some module, we
+			 * have to abort and start from scratch using the
+			 * original skb.
+			 */
+			if (err == -EAGAIN) {
+				ss->abort(skb);
+				nfnl_unlock(subsys_id);
+				kfree_skb(nskb);
+				goto replay;
+			}
+		}
+ack:
+		if (nlh->nlmsg_flags & NLM_F_ACK || err) {
+			/* We don't stop processing the batch on errors, thus,
+			 * userspace gets all the errors that the batch
+			 * triggers.
+			 */
+			netlink_ack(skb, nlh, err);
+			if (err)
+				success = false;
+		}
+
+		msglen = NLMSG_ALIGN(nlh->nlmsg_len);
+		if (msglen > skb->len)
+			msglen = skb->len;
+		skb_pull(skb, msglen);
+	}
+done:
+	if (success && done)
+		ss->commit(skb);
+	else
+		ss->abort(skb);
+
+	nfnl_unlock(subsys_id);
+	kfree_skb(nskb);
+}
+
 static void nfnetlink_rcv(struct sk_buff *skb)
 {
-	netlink_rcv_skb(skb, &nfnetlink_rcv_msg);
+	struct nlmsghdr *nlh = nlmsg_hdr(skb);
+	struct net *net = sock_net(skb->sk);
+	int msglen;
+
+	if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
+		return netlink_ack(skb, nlh, -EPERM);
+
+	if (nlh->nlmsg_len < NLMSG_HDRLEN ||
+	    skb->len < nlh->nlmsg_len)
+		return;
+
+	if (nlh->nlmsg_type == NFNL_MSG_BATCH_BEGIN) {
+		struct nfgenmsg *nfgenmsg;
+
+		msglen = NLMSG_ALIGN(nlh->nlmsg_len);
+		if (msglen > skb->len)
+			msglen = skb->len;
+
+		if (nlh->nlmsg_len < NLMSG_HDRLEN ||
+		    skb->len < NLMSG_HDRLEN + sizeof(struct nfgenmsg))
+			return;
+
+		nfgenmsg = nlmsg_data(nlh);
+		skb_pull(skb, msglen);
+		nfnetlink_rcv_batch(skb, nlh, nfgenmsg->res_id);
+	} else {
+		netlink_rcv_skb(skb, &nfnetlink_rcv_msg);
+	}
 }
 
 #ifdef CONFIG_MODULES
-- 
cgit 


From b5bc89bfa0b46de37754610f46c0ef4e2280edb4 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Thu, 10 Oct 2013 16:49:19 +0200
Subject: netfilter: nf_tables: add trace support

This patch adds support for tracing the packet travel through
the ruleset, in a similar fashion to x_tables.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/net/netfilter/nf_tables.h |  2 ++
 net/netfilter/nf_tables_api.c     |  1 +
 net/netfilter/nf_tables_core.c    | 57 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 60 insertions(+)

diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index 975ad3c573c7..54c4a5cafb64 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -392,6 +392,7 @@ enum nft_chain_flags {
  *	@list: used internally
  *	@rcu_head: used internally
  *	@net: net namespace that this chain belongs to
+ *	@table: table that this chain belongs to
  *	@handle: chain handle
  *	@flags: bitmask of enum nft_chain_flags
  *	@use: number of jump references to this chain
@@ -403,6 +404,7 @@ struct nft_chain {
 	struct list_head		list;
 	struct rcu_head			rcu_head;
 	struct net			*net;
+	struct nft_table		*table;
 	u64				handle;
 	u8				flags;
 	u16				use;
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 79e1418a6043..dcddc49c0e08 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -979,6 +979,7 @@ static int nf_tables_newchain(struct sock *nlsk, struct sk_buff *skb,
 	INIT_LIST_HEAD(&chain->rules);
 	chain->handle = nf_tables_alloc_handle(table);
 	chain->net = net;
+	chain->table = table;
 	nla_strlcpy(chain->name, name, NFT_CHAIN_MAXNAMELEN);
 
 	if (!(table->flags & NFT_TABLE_F_DORMANT) &&
diff --git a/net/netfilter/nf_tables_core.c b/net/netfilter/nf_tables_core.c
index d581ef660248..cb9e685caae1 100644
--- a/net/netfilter/nf_tables_core.c
+++ b/net/netfilter/nf_tables_core.c
@@ -19,6 +19,7 @@
 #include <linux/netfilter/nf_tables.h>
 #include <net/netfilter/nf_tables_core.h>
 #include <net/netfilter/nf_tables.h>
+#include <net/netfilter/nf_log.h>
 
 static void nft_cmp_fast_eval(const struct nft_expr *expr,
 			      struct nft_data data[NFT_REG_MAX + 1])
@@ -63,6 +64,7 @@ static bool nft_payload_fast_eval(const struct nft_expr *expr,
 struct nft_jumpstack {
 	const struct nft_chain	*chain;
 	const struct nft_rule	*rule;
+	int			rulenum;
 };
 
 static inline void
@@ -79,6 +81,40 @@ nft_chain_stats(const struct nft_chain *this, const struct nft_pktinfo *pkt,
 	rcu_read_unlock_bh();
 }
 
+enum nft_trace {
+	NFT_TRACE_RULE,
+	NFT_TRACE_RETURN,
+	NFT_TRACE_POLICY,
+};
+
+static const char *const comments[] = {
+	[NFT_TRACE_RULE]	= "rule",
+	[NFT_TRACE_RETURN]	= "return",
+	[NFT_TRACE_POLICY]	= "policy",
+};
+
+static struct nf_loginfo trace_loginfo = {
+	.type = NF_LOG_TYPE_LOG,
+	.u = {
+		.log = {
+			.level = 4,
+			.logflags = NF_LOG_MASK,
+	        },
+	},
+};
+
+static inline void nft_trace_packet(const struct nft_pktinfo *pkt,
+				    const struct nft_chain *chain,
+				    int rulenum, enum nft_trace type)
+{
+	struct net *net = dev_net(pkt->in ? pkt->in : pkt->out);
+
+	nf_log_packet(net, pkt->xt.family, pkt->hooknum, pkt->skb, pkt->in,
+		      pkt->out, &trace_loginfo, "TRACE: %s:%s:%s:%u ",
+		      chain->table->name, chain->name, comments[type],
+		      rulenum);
+}
+
 unsigned int
 nft_do_chain_pktinfo(struct nft_pktinfo *pkt, const struct nf_hook_ops *ops)
 {
@@ -88,6 +124,7 @@ nft_do_chain_pktinfo(struct nft_pktinfo *pkt, const struct nf_hook_ops *ops)
 	struct nft_data data[NFT_REG_MAX + 1];
 	unsigned int stackptr = 0;
 	struct nft_jumpstack jumpstack[NFT_JUMP_STACK_SIZE];
+	int rulenum = 0;
 	/*
 	 * Cache cursor to avoid problems in case that the cursor is updated
 	 * while traversing the ruleset.
@@ -104,6 +141,8 @@ next_rule:
 		if (unlikely(rule->genmask & (1 << gencursor)))
 			continue;
 
+		rulenum++;
+
 		nft_rule_for_each_expr(expr, last, rule) {
 			if (expr->ops == &nft_cmp_fast_ops)
 				nft_cmp_fast_eval(expr, data);
@@ -129,17 +168,28 @@ next_rule:
 	case NF_ACCEPT:
 	case NF_DROP:
 	case NF_QUEUE:
+		if (unlikely(pkt->skb->nf_trace))
+			nft_trace_packet(pkt, chain, rulenum, NFT_TRACE_RULE);
+
 		return data[NFT_REG_VERDICT].verdict;
 	case NFT_JUMP:
+		if (unlikely(pkt->skb->nf_trace))
+			nft_trace_packet(pkt, chain, rulenum, NFT_TRACE_RULE);
+
 		BUG_ON(stackptr >= NFT_JUMP_STACK_SIZE);
 		jumpstack[stackptr].chain = chain;
 		jumpstack[stackptr].rule  = rule;
+		jumpstack[stackptr].rulenum = rulenum;
 		stackptr++;
 		/* fall through */
 	case NFT_GOTO:
 		chain = data[NFT_REG_VERDICT].chain;
 		goto do_chain;
 	case NFT_RETURN:
+		if (unlikely(pkt->skb->nf_trace))
+			nft_trace_packet(pkt, chain, rulenum, NFT_TRACE_RETURN);
+
+		/* fall through */
 	case NFT_CONTINUE:
 		break;
 	default:
@@ -147,13 +197,20 @@ next_rule:
 	}
 
 	if (stackptr > 0) {
+		if (unlikely(pkt->skb->nf_trace))
+			nft_trace_packet(pkt, chain, ++rulenum, NFT_TRACE_RETURN);
+
 		stackptr--;
 		chain = jumpstack[stackptr].chain;
 		rule  = jumpstack[stackptr].rule;
+		rulenum = jumpstack[stackptr].rulenum;
 		goto next_rule;
 	}
 	nft_chain_stats(chain, pkt, jumpstack, stackptr);
 
+	if (unlikely(pkt->skb->nf_trace))
+		nft_trace_packet(pkt, chain, ++rulenum, NFT_TRACE_POLICY);
+
 	return nft_base_chain(chain)->policy;
 }
 EXPORT_SYMBOL_GPL(nft_do_chain_pktinfo);
-- 
cgit 


From ed683f138b3dbc8a5e878e24a0bfa0bb61043a09 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Mon, 7 Oct 2013 22:53:08 +0200
Subject: netfilter: nf_tables: add ARP filtering support

This patch registers the ARP family and he filter chain type
for this family.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/net/netns/nftables.h       |   1 +
 net/ipv4/netfilter/Kconfig         |   4 ++
 net/ipv4/netfilter/Makefile        |   1 +
 net/ipv4/netfilter/nf_tables_arp.c | 102 +++++++++++++++++++++++++++++++++++++
 4 files changed, 108 insertions(+)
 create mode 100644 net/ipv4/netfilter/nf_tables_arp.c

diff --git a/include/net/netns/nftables.h b/include/net/netns/nftables.h
index 08a4248a12b5..15d056d534e3 100644
--- a/include/net/netns/nftables.h
+++ b/include/net/netns/nftables.h
@@ -10,6 +10,7 @@ struct netns_nftables {
 	struct list_head	commit_list;
 	struct nft_af_info	*ipv4;
 	struct nft_af_info	*ipv6;
+	struct nft_af_info	*arp;
 	struct nft_af_info	*bridge;
 	u8			gencursor;
 	u8			genctr;
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
index 1f37ef67f1ac..40d56073cd19 100644
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -53,6 +53,10 @@ config NFT_CHAIN_NAT_IPV4
 	depends on NF_NAT_IPV4 && NFT_NAT
 	tristate "IPv4 nf_tables nat chain support"
 
+config NF_TABLES_ARP
+	depends on NF_TABLES
+	tristate "ARP nf_tables support"
+
 config IP_NF_IPTABLES
 	tristate "IP tables support (required for filtering/masq/NAT)"
 	default m if NETFILTER_ADVANCED=n
diff --git a/net/ipv4/netfilter/Makefile b/net/ipv4/netfilter/Makefile
index 91e0bd71a6d3..19df72b7ba88 100644
--- a/net/ipv4/netfilter/Makefile
+++ b/net/ipv4/netfilter/Makefile
@@ -31,6 +31,7 @@ obj-$(CONFIG_NF_TABLES_IPV4) += nf_tables_ipv4.o
 obj-$(CONFIG_NFT_REJECT_IPV4) += nft_reject_ipv4.o
 obj-$(CONFIG_NFT_CHAIN_ROUTE_IPV4) += nft_chain_route_ipv4.o
 obj-$(CONFIG_NFT_CHAIN_NAT_IPV4) += nft_chain_nat_ipv4.o
+obj-$(CONFIG_NF_TABLES_ARP) += nf_tables_arp.o
 
 # generic IP tables 
 obj-$(CONFIG_IP_NF_IPTABLES) += ip_tables.o
diff --git a/net/ipv4/netfilter/nf_tables_arp.c b/net/ipv4/netfilter/nf_tables_arp.c
new file mode 100644
index 000000000000..3e67ef1c676f
--- /dev/null
+++ b/net/ipv4/netfilter/nf_tables_arp.c
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 2008-2010 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2013 Pablo Neira Ayuso <pablo@netfilter.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Development of this code funded by Astaro AG (http://www.astaro.com/)
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/netfilter_arp.h>
+#include <net/netfilter/nf_tables.h>
+
+static struct nft_af_info nft_af_arp __read_mostly = {
+	.family		= NFPROTO_ARP,
+	.nhooks		= NF_ARP_NUMHOOKS,
+	.owner		= THIS_MODULE,
+};
+
+static int nf_tables_arp_init_net(struct net *net)
+{
+	net->nft.arp = kmalloc(sizeof(struct nft_af_info), GFP_KERNEL);
+	if (net->nft.arp== NULL)
+		return -ENOMEM;
+
+	memcpy(net->nft.arp, &nft_af_arp, sizeof(nft_af_arp));
+
+	if (nft_register_afinfo(net, net->nft.arp) < 0)
+		goto err;
+
+	return 0;
+err:
+	kfree(net->nft.arp);
+	return -ENOMEM;
+}
+
+static void nf_tables_arp_exit_net(struct net *net)
+{
+	nft_unregister_afinfo(net->nft.arp);
+	kfree(net->nft.arp);
+}
+
+static struct pernet_operations nf_tables_arp_net_ops = {
+	.init   = nf_tables_arp_init_net,
+	.exit   = nf_tables_arp_exit_net,
+};
+
+static unsigned int
+nft_do_chain_arp(const struct nf_hook_ops *ops,
+		  struct sk_buff *skb,
+		  const struct net_device *in,
+		  const struct net_device *out,
+		  int (*okfn)(struct sk_buff *))
+{
+	struct nft_pktinfo pkt;
+
+	nft_set_pktinfo(&pkt, ops, skb, in, out);
+
+	return nft_do_chain_pktinfo(&pkt, ops);
+}
+
+static struct nf_chain_type filter_arp = {
+	.family		= NFPROTO_ARP,
+	.name		= "filter",
+	.type		= NFT_CHAIN_T_DEFAULT,
+	.hook_mask	= (1 << NF_ARP_IN) |
+			  (1 << NF_ARP_OUT) |
+			  (1 << NF_ARP_FORWARD),
+	.fn		= {
+		[NF_ARP_IN]		= nft_do_chain_arp,
+		[NF_ARP_OUT]		= nft_do_chain_arp,
+		[NF_ARP_FORWARD]	= nft_do_chain_arp,
+	},
+};
+
+static int __init nf_tables_arp_init(void)
+{
+	int ret;
+
+	nft_register_chain_type(&filter_arp);
+	ret = register_pernet_subsys(&nf_tables_arp_net_ops);
+	if (ret < 0)
+		nft_unregister_chain_type(&filter_arp);
+
+	return ret;
+}
+
+static void __exit nf_tables_arp_exit(void)
+{
+	unregister_pernet_subsys(&nf_tables_arp_net_ops);
+	nft_unregister_chain_type(&filter_arp);
+}
+
+module_init(nf_tables_arp_init);
+module_exit(nf_tables_arp_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
+MODULE_ALIAS_NFT_FAMILY(3); /* NFPROTO_ARP */
-- 
cgit 


From f19454f877342850f55efc59f54a53fa89b3e1de Mon Sep 17 00:00:00 2001
From: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Date: Sat, 12 Oct 2013 21:50:02 +0530
Subject: staging: vt6656: Removed redundant code from iwctl file

There was one line which was added twice in the
definition of iwctl_handler and hence was redundant.
It was defined at line nos 1798 and 1818. Removed
the code at line 1818.
The redundant code was:
IW_HANDLER(SIOCSIWMLME, iwctl_siwmlme)
which was defined twice.

Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/iwctl.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/staging/vt6656/iwctl.c b/drivers/staging/vt6656/iwctl.c
index 59688881a9a0..dc3201a9f3dc 100644
--- a/drivers/staging/vt6656/iwctl.c
+++ b/drivers/staging/vt6656/iwctl.c
@@ -1815,7 +1815,6 @@ static const iw_handler iwctl_handler[] = {
 	IW_HANDLER(SIOCGIWPOWER, iwctl_giwpower),
 	IW_HANDLER(SIOCSIWGENIE, iwctl_siwgenie),
 	IW_HANDLER(SIOCGIWGENIE, iwctl_giwgenie),
-	IW_HANDLER(SIOCSIWMLME, iwctl_siwmlme),
 	IW_HANDLER(SIOCSIWAUTH, iwctl_siwauth),
 	IW_HANDLER(SIOCGIWAUTH, iwctl_giwauth),
 	IW_HANDLER(SIOCSIWENCODEEXT, iwctl_siwencodeext),
-- 
cgit 


From c6e9a0565ff06a06299ff0445f75dc92ae69d45c Mon Sep 17 00:00:00 2001
From: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Date: Sat, 12 Oct 2013 22:28:08 +0530
Subject: staging: vt6655: Removed C99 style comments

C99 style comment // should not be used as
per coding guidelines.Usage of C99 style
comment // was resulting in checkpatch.pl
error.Hence replaced it with block comment /* */

Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6655/wroute.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/vt6655/wroute.h b/drivers/staging/vt6655/wroute.h
index 5ecc190ae775..3abc1d36f89d 100644
--- a/drivers/staging/vt6655/wroute.h
+++ b/drivers/staging/vt6655/wroute.h
@@ -41,4 +41,4 @@
 
 bool ROUTEbRelay(PSDevice pDevice, unsigned char *pbySkbData, unsigned int uDataLen, unsigned int uNodeIndex);
 
-#endif // __WROUTE_H__
+#endif /* __WROUTE_H__ */
-- 
cgit 


From e072241a31cb7469dcaf5d0e0d5066b9ed30e58c Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Fri, 11 Oct 2013 23:08:28 -0700
Subject: staging: ft1000-usb: remove space between function name and open
 paren in ft1000_download.c

fixed checkpatch.pl warning: space prohibited between function name and
open parenthesis '('

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_download.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index 5190c8ac4e0a..978b9796665b 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -123,7 +123,7 @@ struct dsp_image_info {
 // Notes:
 //
 //---------------------------------------------------------------------------
-static u32 check_usb_db (struct ft1000_usb *ft1000dev)
+static u32 check_usb_db(struct ft1000_usb *ft1000dev)
 {
 	int loopcnt;
 	u16 temp;
-- 
cgit 


From 1d2a01eb400fb51d190e872233e3287c4bc7ca85 Mon Sep 17 00:00:00 2001
From: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Date: Sat, 12 Oct 2013 21:45:37 +0530
Subject: Staging: xgifb: remove space before semicolon

Fix checkpatch warning: WARNING:space prohibited before semicolon

Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/xgifb/vb_table.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/xgifb/vb_table.h b/drivers/staging/xgifb/vb_table.h
index 7168eedbd96a..f17e5b9bd333 100644
--- a/drivers/staging/xgifb/vb_table.h
+++ b/drivers/staging/xgifb/vb_table.h
@@ -1284,7 +1284,7 @@ static const struct SiS_LVDSData XGI_LVDS1024x768Des_1[] = {
 	{0, 1048,   0, 771}, /* 04 (640x480x60Hz) */
 	{0, 1048,   0, 771}, /* 05 (800x600x60Hz) */
 	{0, 1048, 805, 770}  /* 06 (1024x768x60Hz) */
-} ;
+};
 
 static const struct SiS_LVDSData XGI_LVDS1024x768Des_2[] = {
 	{1142,  856, 622, 587}, /* 00 (320x200,320x400,640x200,640x400) */
-- 
cgit 


From 1f2a55f23f32e7ad24848589fac3e2773b9557aa Mon Sep 17 00:00:00 2001
From: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Date: Sun, 13 Oct 2013 16:21:07 +0530
Subject: staging: speakup: remove unnecessary space before semicolon

Removed unnecessary space before semicolon which was
leading to checkpatch.pl warning.

Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/speakup/varhandlers.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/speakup/varhandlers.c b/drivers/staging/speakup/varhandlers.c
index 70231b6dabba..445a3fda380e 100644
--- a/drivers/staging/speakup/varhandlers.c
+++ b/drivers/staging/speakup/varhandlers.c
@@ -280,7 +280,7 @@ int spk_set_mask_bits(const char *input, const int which, const int how)
 	if (!cp)
 		cp = spk_punc_info[which].value;
 	else {
-		for ( ; *cp; cp++) {
+		for (; *cp; cp++) {
 			if (*cp < SPACE)
 				break;
 			if (mask < PUNC) {
@@ -294,11 +294,11 @@ int spk_set_mask_bits(const char *input, const int which, const int how)
 		cp = (u_char *)input;
 	}
 	if (how&2) {
-		for ( ; *cp; cp++)
+		for (; *cp; cp++)
 			if (*cp > SPACE)
 				spk_chartab[*cp] |= mask;
 	} else {
-		for ( ; *cp; cp++)
+		for (; *cp; cp++)
 			if (*cp > SPACE)
 				spk_chartab[*cp] &= ~mask;
 	}
-- 
cgit 


From 0c5e802c1c42f0c2882400fa0e24150e55c4c62e Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Sat, 12 Oct 2013 08:32:46 -0700
Subject: staging: ft1000: change comment style

Coding style requires that comments use the standard /* */ style
instead of C99 style.

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_download.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index 978b9796665b..1e62b5060d00 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -1143,7 +1143,7 @@ u16 scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 				}
 				pseudo_header_len = ntohs(pseudo_header->length);	/* Byte length for PROV records */
 
-				// Get buffer for provisioning data
+				/* Get buffer for provisioning data */
 				pbuffer =
 				    kmalloc((pseudo_header_len +
 					     sizeof(struct pseudo_hdr)),
-- 
cgit 


From cfd9d1fad6bd0fe6679c3ffa455ca3c14651aecb Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Sat, 12 Oct 2013 08:37:53 -0700
Subject: staging: ft1000: remove braces from one-line conditional

As per coding style,
braces {} are not necessary for single statement blocks

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_download.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index 1e62b5060d00..85c9ce175aef 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -1201,9 +1201,8 @@ u16 scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 			break;
 		}		/* End Switch */
 
-		if (status != STATUS_SUCCESS) {
+		if (status != STATUS_SUCCESS)
 			break;
-		}
 
 /****
       // Check if Card is present
-- 
cgit 


From 610554d3ac98c75da20acbd79837510ed7435e11 Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Sat, 12 Oct 2013 10:26:48 -0700
Subject: staging: ft1000: remove space before address operator

as per coding style (checkpatch error),
space prohibited after that '&'

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_download.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index 85c9ce175aef..d2cfafd6a8b4 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -1036,7 +1036,7 @@ u16 scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 						status =
 						    fix_ft1000_write_dpram32
 						    (ft1000dev, dpram++,
-						     (u8 *) & templong);
+						     (u8 *) &templong);
 
 					}
 					break;
-- 
cgit 


From 6f5519fd833abd8066cc7a8f6e8c5b31dfcc7ea9 Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Sat, 12 Oct 2013 10:28:50 -0700
Subject: staging: ft1000: remove space before closing paren

as per coding style,
space prohibited before that close parenthesis

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_download.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index d2cfafd6a8b4..11225f5cae4a 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -1137,7 +1137,7 @@ u16 scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 			if (pseudo_header->checksum ==
 			    hdr_checksum(pseudo_header)) {
 				if (pseudo_header->portdest !=
-				    0x80 /* Dsp OAM */ ) {
+				    0x80 /* Dsp OAM */) {
 					state = STATE_DONE_PROV;
 					break;
 				}
-- 
cgit 


From de7a0cc15a9ce952a06053e3e155affe0119e772 Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Sat, 12 Oct 2013 12:16:33 -0700
Subject: staging: ft1000: convert formal function header to single line
 comment

As per coding style,C99 comments are not allowed
also, the formal header contained empty space and
redundant information that's right there in the function

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_download.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index 11225f5cae4a..229306ff8ad2 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -111,18 +111,7 @@ struct dsp_image_info {
 };
 
 
-//---------------------------------------------------------------------------
-// Function:    check_usb_db
-//
-// Parameters:  struct ft1000_usb  - device structure
-//
-// Returns:     0 - success
-//
-// Description: This function checks if the doorbell register is cleared
-//
-// Notes:
-//
-//---------------------------------------------------------------------------
+/* checks if the doorbell register is cleared */
 static u32 check_usb_db(struct ft1000_usb *ft1000dev)
 {
 	int loopcnt;
-- 
cgit 


From 135a9ea056df506619fa50bafdf0d66133295e97 Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Sun, 13 Oct 2013 18:52:46 -0700
Subject: staging: ft1000: convert formal get_handshake() function header to
 single line comment

As per coding style,C99 comments are not allowed
also, the formal header contained empty space and
redundant information that's right there in the function

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_download.c | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index 229306ff8ad2..f80dc433e6d5 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -158,20 +158,7 @@ static u32 check_usb_db(struct ft1000_usb *ft1000dev)
 	return HANDSHAKE_MAG_TIMEOUT_VALUE;
 }
 
-//---------------------------------------------------------------------------
-// Function:    get_handshake
-//
-// Parameters:  struct ft1000_usb  - device structure
-//              u16 expected_value - the handshake value expected
-//
-// Returns:     handshakevalue - success
-//              HANDSHAKE_TIMEOUT_VALUE - failure
-//
-// Description: This function gets the handshake and compare with the expected value
-//
-// Notes:
-//
-//---------------------------------------------------------------------------
+/* gets the handshake and compares it with the expected value */
 static u16 get_handshake(struct ft1000_usb *ft1000dev, u16 expected_value)
 {
 	u16 handshake;
-- 
cgit 


From 6c762a42984b6bcac3da1eba75213b4af938c486 Mon Sep 17 00:00:00 2001
From: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Date: Mon, 14 Oct 2013 18:56:10 +0530
Subject: Staging: cxt1e1: moving { to the previous line

Fix checkpatch error: ERROR: that open brace { should be on the previous
line

Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/cxt1e1/comet.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/cxt1e1/comet.c b/drivers/staging/cxt1e1/comet.c
index 8cef283102ee..46a0d92173e0 100644
--- a/drivers/staging/cxt1e1/comet.c
+++ b/drivers/staging/cxt1e1/comet.c
@@ -145,8 +145,7 @@ void init_comet(void *ci, comet_t *comet, u_int32_t port_mode, int clockmaster,
     /* Enable 8 out of 10 validation */
 	 /* t1RBOC enable(BOC:BitOriented Code) */
 	pci_write_32((u_int32_t *) &comet->t1_rboc_ena, 0x00);
-	if (isT1mode)
-	{
+	if (isT1mode) {
 		/* IBCD cfg: aka Inband Code Detection ** loopback code length set to */
 		/* 6 bit down, 5 bit up (assert) */
 		pci_write_32((u_int32_t *) &comet->ibcd_cfg, 0x04);
-- 
cgit 


From a6df8a4f141a8beb18505179e9d364a8e43cee23 Mon Sep 17 00:00:00 2001
From: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Date: Mon, 14 Oct 2013 19:51:04 +0530
Subject: Staging: cxt1e1: remove space between function name and '('

Fix checkpatch warning: WARNING: space prohibited between function name
and open parenthesis '('

Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/cxt1e1/comet.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/cxt1e1/comet.h b/drivers/staging/cxt1e1/comet.h
index e06da4a6f6f6..03b9bb77a809 100644
--- a/drivers/staging/cxt1e1/comet.h
+++ b/drivers/staging/cxt1e1/comet.h
@@ -338,7 +338,7 @@ typedef struct s_comet_reg comet_t;
 
 #ifdef __KERNEL__
 extern void
-init_comet (void *, comet_t *, u_int32_t, int, u_int8_t);
+init_comet(void *, comet_t *, u_int32_t, int, u_int8_t);
 #endif
 
 #endif                          /* _INC_COMET_H_ */
-- 
cgit 


From b186410d6a6df42983c494bc57c9c795316f55a0 Mon Sep 17 00:00:00 2001
From: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Date: Sun, 13 Oct 2013 20:19:49 +0530
Subject: staging: octeon: Fixed line over 80 chars warning

Fixed the line over 80 characters warning
to comply with linux cidung style

Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon/ethernet.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c
index c3a90e7012af..8680d70e8832 100644
--- a/drivers/staging/octeon/ethernet.c
+++ b/drivers/staging/octeon/ethernet.c
@@ -163,10 +163,12 @@ static void cvm_oct_periodic_worker(struct work_struct *work)
 	if (priv->poll)
 		priv->poll(cvm_oct_device[priv->port]);
 
-	cvm_oct_device[priv->port]->netdev_ops->ndo_get_stats(cvm_oct_device[priv->port]);
+	cvm_oct_device[priv->port]->netdev_ops->ndo_get_stats(
+						cvm_oct_device[priv->port]);
 
 	if (!atomic_read(&cvm_oct_poll_queue_stopping))
-		queue_delayed_work(cvm_oct_poll_queue, &priv->port_periodic_work, HZ);
+		queue_delayed_work(cvm_oct_poll_queue,
+						&priv->port_periodic_work, HZ);
  }
 
 static void cvm_oct_configure_common_hw(void)
@@ -584,8 +586,8 @@ static const struct net_device_ops cvm_oct_pow_netdev_ops = {
 
 extern void octeon_mdiobus_force_mod_depencency(void);
 
-static struct device_node *cvm_oct_of_get_child(const struct device_node *parent,
-							   int reg_val)
+static struct device_node *cvm_oct_of_get_child(
+				const struct device_node *parent, int reg_val)
 {
 	struct device_node *node = NULL;
 	int size;
@@ -603,7 +605,7 @@ static struct device_node *cvm_oct_of_get_child(const struct device_node *parent
 }
 
 static struct device_node *cvm_oct_node_for_port(struct device_node *pip,
-							    int interface, int port)
+							int interface, int port)
 {
 	struct device_node *ni, *np;
 
@@ -713,7 +715,8 @@ static int cvm_oct_probe(struct platform_device *pdev)
 		int port;
 		int port_index;
 
-		for (port_index = 0, port = cvmx_helper_get_ipd_port(interface, 0);
+		for (port_index = 0,
+		     port = cvmx_helper_get_ipd_port(interface, 0);
 		     port < cvmx_helper_get_ipd_port(interface, num_ports);
 		     port_index++, port++) {
 			struct octeon_ethernet *priv;
@@ -726,7 +729,8 @@ static int cvm_oct_probe(struct platform_device *pdev)
 
 			/* Initialize the device private structure. */
 			priv = netdev_priv(dev);
-			priv->of_node = cvm_oct_node_for_port(pip, interface, port_index);
+			priv->of_node = cvm_oct_node_for_port(pip, interface,
+								port_index);
 
 			INIT_DELAYED_WORK(&priv->port_periodic_work,
 					  cvm_oct_periodic_worker);
@@ -793,7 +797,7 @@ static int cvm_oct_probe(struct platform_device *pdev)
 				    cvmx_pko_get_num_queues(priv->port) *
 				    sizeof(uint32_t);
 				queue_delayed_work(cvm_oct_poll_queue,
-						   &priv->port_periodic_work, HZ);
+						&priv->port_periodic_work, HZ);
 			}
 		}
 	}
-- 
cgit 


From 851ec8cda8ac3720a070fa3a51cce44ec0e440ee Mon Sep 17 00:00:00 2001
From: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Date: Sun, 13 Oct 2013 20:19:50 +0530
Subject: staging: octeon: Removed space at start of line

Removed unnecessary space at start of line
to fix checkpatch.pl warning.

Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon/ethernet.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c
index 8680d70e8832..8aba66e4a3e4 100644
--- a/drivers/staging/octeon/ethernet.c
+++ b/drivers/staging/octeon/ethernet.c
@@ -169,7 +169,7 @@ static void cvm_oct_periodic_worker(struct work_struct *work)
 	if (!atomic_read(&cvm_oct_poll_queue_stopping))
 		queue_delayed_work(cvm_oct_poll_queue,
 						&priv->port_periodic_work, HZ);
- }
+}
 
 static void cvm_oct_configure_common_hw(void)
 {
-- 
cgit 


From 691dd0b7d26e9959378ccc4a94d846e769a056e6 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Sun, 13 Oct 2013 22:52:20 -0500
Subject: staging: r8188eu: Convert driver to use external firmware

As originally submitted, this driver acquired its firmware from data
statements embedded in the source code. This information has been extracted
into a binary file that has been accepted into the linux-firmware git
repo as commit ffc47f1 entitled "rtlwifi: Add new firmware files for
rtl8188eu". This patch switches the driver to use this file, and deletes
the firmware data from the source. The TODO list is also updated.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/Makefile                 |    1 -
 drivers/staging/rtl8188eu/TODO                     |    1 -
 drivers/staging/rtl8188eu/hal/Hal8188EFWImg_CE.c   | 1761 --------------------
 drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c  |   58 +-
 .../staging/rtl8188eu/include/Hal8188EFWImg_CE.h   |   28 -
 drivers/staging/rtl8188eu/include/odm_precomp.h    |    5 -
 6 files changed, 34 insertions(+), 1820 deletions(-)
 delete mode 100644 drivers/staging/rtl8188eu/hal/Hal8188EFWImg_CE.c
 delete mode 100644 drivers/staging/rtl8188eu/include/Hal8188EFWImg_CE.h

diff --git a/drivers/staging/rtl8188eu/Makefile b/drivers/staging/rtl8188eu/Makefile
index 1639a45da948..0bd32de44600 100644
--- a/drivers/staging/rtl8188eu/Makefile
+++ b/drivers/staging/rtl8188eu/Makefile
@@ -30,7 +30,6 @@ r8188eu-y :=				\
 		hal/HalPhyRf.o		\
 		hal/HalPhyRf_8188e.o	\
 		hal/HalPwrSeqCmd.o	\
-		hal/Hal8188EFWImg_CE.o	\
 		hal/Hal8188EPwrSeq.o	\
 		hal/Hal8188ERateAdaptive.o\
 		hal/hal_intf.o		\
diff --git a/drivers/staging/rtl8188eu/TODO b/drivers/staging/rtl8188eu/TODO
index e50aa50bdb47..f7f389c40e71 100644
--- a/drivers/staging/rtl8188eu/TODO
+++ b/drivers/staging/rtl8188eu/TODO
@@ -2,7 +2,6 @@ TODO:
 - find and remove remaining code valid only for 5 HGz. Most of the obvious
   ones have been removed, but things like channel > 14 still exist.
 - find and remove any code for other chips that is left over
-- convert to external firmware
 - convert any remaining unusual variable types
 - find codes that can use %pM and %Nph formatting
 - checkpatch.pl fixes - most of the remaining ones are lines too long. Many
diff --git a/drivers/staging/rtl8188eu/hal/Hal8188EFWImg_CE.c b/drivers/staging/rtl8188eu/hal/Hal8188EFWImg_CE.c
deleted file mode 100644
index 95759bed5410..000000000000
--- a/drivers/staging/rtl8188eu/hal/Hal8188EFWImg_CE.c
+++ /dev/null
@@ -1,1761 +0,0 @@
-/******************************************************************************
-*
-* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
-*
-* This program is free software; you can redistribute it and/or modify it
-* under the terms of version 2 of the GNU General Public License as
-* published by the Free Software Foundation.
-*
-* This program is distributed in the hope that it will be useful, but WITHOUT
-* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-* more details.
-*
-* You should have received a copy of the GNU General Public License along with
-* this program; if not, write to the Free Software Foundation, Inc.,
-* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
-*
-*
-******************************************************************************/
-#include "odm_precomp.h"
-
-const u8 Rtl8188EFwImgArray[Rtl8188EFWImgArrayLength] = {
-	0xE1, 0x88, 0x10, 0x00, 0x0B, 0x00, 0x01, 0x00,
-	0x01, 0x21, 0x11, 0x27, 0x30, 0x36, 0x00, 0x00,
-	0x2D, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x02, 0x45, 0x4E, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0xC1, 0x6F, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0xA1, 0xE6, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x02, 0x56, 0xF7, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0xC2, 0xAF, 0x80, 0xFE, 0x32, 0x12, 0x42, 0x04,
-	0x85, 0xD0, 0x0B, 0x75, 0xD0, 0x08, 0xAA, 0xE0,
-	0xC2, 0x8C, 0xE5, 0x8A, 0x24, 0x67, 0xF5, 0x8A,
-	0xE5, 0x8C, 0x34, 0x79, 0xF5, 0x8C, 0xD2, 0x8C,
-	0xEC, 0x24, 0x89, 0xF8, 0xE6, 0xBC, 0x03, 0x02,
-	0x74, 0xFF, 0xC3, 0x95, 0x81, 0xB4, 0x40, 0x00,
-	0x40, 0xCE, 0x79, 0x04, 0x78, 0x80, 0x16, 0xE6,
-	0x08, 0x70, 0x0B, 0xC2, 0xAF, 0xE6, 0x30, 0xE1,
-	0x03, 0x44, 0x18, 0xF6, 0xD2, 0xAF, 0x08, 0xD9,
-	0xED, 0xEA, 0x8B, 0xD0, 0x22, 0xE5, 0x0C, 0xFF,
-	0x23, 0x24, 0x81, 0xF8, 0x0F, 0x08, 0x08, 0xBF,
-	0x04, 0x04, 0x7F, 0x00, 0x78, 0x81, 0xE6, 0x30,
-	0xE4, 0xF2, 0x00, 0xE5, 0x0C, 0xC3, 0x9F, 0x50,
-	0x20, 0x05, 0x0C, 0x74, 0x88, 0x25, 0x0C, 0xF8,
-	0xE6, 0xFD, 0xA6, 0x81, 0x08, 0xE6, 0xAE, 0x0C,
-	0xBE, 0x03, 0x02, 0x74, 0xFF, 0xCD, 0xF8, 0xE8,
-	0x6D, 0x60, 0xE0, 0x08, 0xE6, 0xC0, 0xE0, 0x80,
-	0xF6, 0xE5, 0x0C, 0xD3, 0x9F, 0x40, 0x27, 0xE5,
-	0x0C, 0x24, 0x89, 0xF8, 0xE6, 0xAE, 0x0C, 0xBE,
-	0x03, 0x02, 0x74, 0xFF, 0xFD, 0x18, 0xE6, 0xCD,
-	0xF8, 0xE5, 0x81, 0x6D, 0x60, 0x06, 0xD0, 0xE0,
-	0xF6, 0x18, 0x80, 0xF5, 0xE5, 0x0C, 0x24, 0x88,
-	0xC8, 0xF6, 0x15, 0x0C, 0x80, 0xD3, 0xE5, 0x0C,
-	0x23, 0x24, 0x81, 0xF8, 0x7F, 0x04, 0xC2, 0xAF,
-	0xE6, 0x30, 0xE0, 0x03, 0x10, 0xE2, 0x0C, 0x7F,
-	0x00, 0x30, 0xE1, 0x07, 0x30, 0xE3, 0x04, 0x7F,
-	0x08, 0x54, 0xF4, 0x54, 0x7C, 0xC6, 0xD2, 0xAF,
-	0x54, 0x80, 0x42, 0x07, 0x22, 0x78, 0x88, 0xA6,
-	0x81, 0x74, 0x03, 0x60, 0x06, 0xFF, 0x08, 0x76,
-	0xFF, 0xDF, 0xFB, 0x7F, 0x04, 0xE4, 0x78, 0x80,
-	0xF6, 0x08, 0xF6, 0x08, 0xDF, 0xFA, 0x78, 0x81,
-	0x76, 0x30, 0x90, 0x45, 0xDE, 0x74, 0x01, 0x93,
-	0xC0, 0xE0, 0xE4, 0x93, 0xC0, 0xE0, 0x43, 0x89,
-	0x01, 0x75, 0x8A, 0x60, 0x75, 0x8C, 0x79, 0xD2,
-	0x8C, 0xD2, 0xAF, 0x22, 0x03, 0xEF, 0xD3, 0x94,
-	0x03, 0x40, 0x03, 0x7F, 0xFF, 0x22, 0x74, 0x81,
-	0x2F, 0x2F, 0xF8, 0xE6, 0x20, 0xE5, 0xF4, 0xC2,
-	0xAF, 0xE6, 0x44, 0x30, 0xF6, 0xD2, 0xAF, 0xAE,
-	0x0C, 0xEE, 0xC3, 0x9F, 0x50, 0x21, 0x0E, 0x74,
-	0x88, 0x2E, 0xF8, 0xE6, 0xF9, 0x08, 0xE6, 0x18,
-	0xBE, 0x03, 0x02, 0x74, 0xFF, 0xFD, 0xED, 0x69,
-	0x60, 0x09, 0x09, 0xE7, 0x19, 0x19, 0xF7, 0x09,
-	0x09, 0x80, 0xF3, 0x16, 0x16, 0x80, 0xDA, 0xEE,
-	0xD3, 0x9F, 0x40, 0x04, 0x05, 0x81, 0x05, 0x81,
-	0xEE, 0xD3, 0x9F, 0x40, 0x22, 0x74, 0x88, 0x2E,
-	0xF8, 0x08, 0xE6, 0xF9, 0xEE, 0xB5, 0x0C, 0x02,
-	0xA9, 0x81, 0x18, 0x06, 0x06, 0xE6, 0xFD, 0xED,
-	0x69, 0x60, 0x09, 0x19, 0x19, 0xE7, 0x09, 0x09,
-	0xF7, 0x19, 0x80, 0xF3, 0x1E, 0x80, 0xD9, 0xEF,
-	0x24, 0x88, 0xF8, 0xE6, 0x04, 0xF8, 0xEF, 0x2F,
-	0x04, 0x90, 0x45, 0xDE, 0x93, 0xF6, 0x08, 0xEF,
-	0x2F, 0x93, 0xF6, 0x7F, 0x00, 0x22, 0xEF, 0xD3,
-	0x94, 0x03, 0x40, 0x03, 0x7F, 0xFF, 0x22, 0xEF,
-	0x23, 0x24, 0x81, 0xF8, 0xE6, 0x30, 0xE5, 0xF4,
-	0xC2, 0xAF, 0xE6, 0x54, 0x8C, 0xF6, 0xD2, 0xAF,
-	0xE5, 0x0C, 0xB5, 0x07, 0x0A, 0x74, 0x88, 0x2F,
-	0xF8, 0xE6, 0xF5, 0x81, 0x02, 0x42, 0x4D, 0x50,
-	0x2E, 0x74, 0x89, 0x2F, 0xF8, 0xE6, 0xBF, 0x03,
-	0x02, 0x74, 0xFF, 0xFD, 0x18, 0xE6, 0xF9, 0x74,
-	0x88, 0x2F, 0xF8, 0xFB, 0xE6, 0xFC, 0xE9, 0x6C,
-	0x60, 0x08, 0xA8, 0x05, 0xE7, 0xF6, 0x1D, 0x19,
-	0x80, 0xF4, 0xA8, 0x03, 0xA6, 0x05, 0x1F, 0xE5,
-	0x0C, 0xB5, 0x07, 0xE3, 0x7F, 0x00, 0x22, 0x74,
-	0x89, 0x2F, 0xF8, 0xE6, 0xFD, 0x18, 0x86, 0x01,
-	0x0F, 0x74, 0x88, 0x2F, 0xF8, 0xA6, 0x01, 0x08,
-	0x86, 0x04, 0xE5, 0x0C, 0xB5, 0x07, 0x02, 0xAC,
-	0x81, 0xED, 0x6C, 0x60, 0x08, 0x0D, 0x09, 0xA8,
-	0x05, 0xE6, 0xF7, 0x80, 0xF4, 0xE5, 0x0C, 0xB5,
-	0x07, 0xDE, 0x89, 0x81, 0x7F, 0x00, 0x22, 0xEF,
-	0xD3, 0x94, 0x03, 0x40, 0x03, 0x7F, 0xFF, 0x22,
-	0xEF, 0x23, 0x24, 0x81, 0xF8, 0xC2, 0xAF, 0xE6,
-	0x30, 0xE5, 0x05, 0x30, 0xE0, 0x02, 0xD2, 0xE4,
-	0xD2, 0xE2, 0xC6, 0xD2, 0xAF, 0x7F, 0x00, 0x30,
-	0xE2, 0x01, 0x0F, 0x02, 0x42, 0x4C, 0x8F, 0xF0,
-	0xE4, 0xFF, 0xFE, 0xE5, 0x0C, 0x23, 0x24, 0x80,
-	0xF8, 0xC2, 0xA9, 0x30, 0xF7, 0x0D, 0x7F, 0x08,
-	0xE6, 0x60, 0x0B, 0x2D, 0xF6, 0x60, 0x30, 0x50,
-	0x2E, 0x80, 0x07, 0x30, 0xF1, 0x06, 0xED, 0xF6,
-	0x60, 0x25, 0x7E, 0x02, 0x08, 0x30, 0xF0, 0x10,
-	0xC2, 0xAF, 0xE6, 0x10, 0xE7, 0x23, 0x0E, 0x30,
-	0xE2, 0x0C, 0xD2, 0xAF, 0x7F, 0x04, 0x80, 0x12,
-	0xC2, 0xAF, 0xE6, 0x10, 0xE7, 0x13, 0x54, 0xEC,
-	0x4E, 0xF6, 0xD2, 0xAF, 0x02, 0x42, 0x4D, 0x7F,
-	0x08, 0x08, 0xEF, 0x44, 0x83, 0xF4, 0xC2, 0xAF,
-	0x56, 0xC6, 0xD2, 0xAF, 0x54, 0x80, 0x4F, 0xFF,
-	0x22, 0xC5, 0xF0, 0xF8, 0xA3, 0xE0, 0x28, 0xF0,
-	0xC5, 0xF0, 0xF8, 0xE5, 0x82, 0x15, 0x82, 0x70,
-	0x02, 0x15, 0x83, 0xE0, 0x38, 0xF0, 0x22, 0xEF,
-	0x5B, 0xFF, 0xEE, 0x5A, 0xFE, 0xED, 0x59, 0xFD,
-	0xEC, 0x58, 0xFC, 0x22, 0xEF, 0x4B, 0xFF, 0xEE,
-	0x4A, 0xFE, 0xED, 0x49, 0xFD, 0xEC, 0x48, 0xFC,
-	0x22, 0xE0, 0xFC, 0xA3, 0xE0, 0xFD, 0xA3, 0xE0,
-	0xFE, 0xA3, 0xE0, 0xFF, 0x22, 0xE2, 0xFC, 0x08,
-	0xE2, 0xFD, 0x08, 0xE2, 0xFE, 0x08, 0xE2, 0xFF,
-	0x22, 0xE2, 0xFB, 0x08, 0xE2, 0xF9, 0x08, 0xE2,
-	0xFA, 0x08, 0xE2, 0xCB, 0xF8, 0x22, 0xEC, 0xF2,
-	0x08, 0xED, 0xF2, 0x08, 0xEE, 0xF2, 0x08, 0xEF,
-	0xF2, 0x22, 0xA4, 0x25, 0x82, 0xF5, 0x82, 0xE5,
-	0xF0, 0x35, 0x83, 0xF5, 0x83, 0x22, 0xE0, 0xFB,
-	0xA3, 0xE0, 0xFA, 0xA3, 0xE0, 0xF9, 0x22, 0xEB,
-	0xF0, 0xA3, 0xEA, 0xF0, 0xA3, 0xE9, 0xF0, 0x22,
-	0xD0, 0x83, 0xD0, 0x82, 0xF8, 0xE4, 0x93, 0x70,
-	0x12, 0x74, 0x01, 0x93, 0x70, 0x0D, 0xA3, 0xA3,
-	0x93, 0xF8, 0x74, 0x01, 0x93, 0xF5, 0x82, 0x88,
-	0x83, 0xE4, 0x73, 0x74, 0x02, 0x93, 0x68, 0x60,
-	0xEF, 0xA3, 0xA3, 0xA3, 0x80, 0xDF, 0x02, 0x45,
-	0x8C, 0x02, 0x42, 0xDD, 0xE4, 0x93, 0xA3, 0xF8,
-	0xE4, 0x93, 0xA3, 0x40, 0x03, 0xF6, 0x80, 0x01,
-	0xF2, 0x08, 0xDF, 0xF4, 0x80, 0x29, 0xE4, 0x93,
-	0xA3, 0xF8, 0x54, 0x07, 0x24, 0x0C, 0xC8, 0xC3,
-	0x33, 0xC4, 0x54, 0x0F, 0x44, 0x20, 0xC8, 0x83,
-	0x40, 0x04, 0xF4, 0x56, 0x80, 0x01, 0x46, 0xF6,
-	0xDF, 0xE4, 0x80, 0x0B, 0x01, 0x02, 0x04, 0x08,
-	0x10, 0x20, 0x40, 0x80, 0x90, 0x45, 0xD1, 0xE4,
-	0x7E, 0x01, 0x93, 0x60, 0xBC, 0xA3, 0xFF, 0x54,
-	0x3F, 0x30, 0xE5, 0x09, 0x54, 0x1F, 0xFE, 0xE4,
-	0x93, 0xA3, 0x60, 0x01, 0x0E, 0xCF, 0x54, 0xC0,
-	0x25, 0xE0, 0x60, 0xA8, 0x40, 0xB8, 0xE4, 0x93,
-	0xA3, 0xFA, 0xE4, 0x93, 0xA3, 0xF8, 0xE4, 0x93,
-	0xA3, 0xC8, 0xC5, 0x82, 0xC8, 0xCA, 0xC5, 0x83,
-	0xCA, 0xF0, 0xA3, 0xC8, 0xC5, 0x82, 0xC8, 0xCA,
-	0xC5, 0x83, 0xCA, 0xDF, 0xE9, 0xDE, 0xE7, 0x80,
-	0xBE, 0x00, 0x41, 0x82, 0x09, 0x00, 0x41, 0x82,
-	0x0A, 0x00, 0x41, 0x82, 0x17, 0x00, 0x59, 0xE2,
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-	0x60, 0x38, 0xE4, 0xF5, 0x1D, 0x90, 0x81, 0x3A,
-	0xE0, 0xC3, 0x13, 0x54, 0x7F, 0xF5, 0x1E, 0xE4,
-	0xFB, 0xFD, 0x7F, 0x58, 0x7E, 0x01, 0x12, 0x50,
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-	0x01, 0x70, 0x50, 0x90, 0x81, 0x4D, 0x04, 0xF0,
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-	0xE0, 0x20, 0xE2, 0x07, 0x7D, 0x01, 0x7F, 0x04,
-	0x12, 0x47, 0x3D, 0x22, 0xE4, 0x90, 0x81, 0x4C,
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-	0x02, 0x21, 0x72, 0x90, 0x81, 0x26, 0xE0, 0xFF,
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-	0x31, 0x73, 0xEF, 0x70, 0x04, 0x90, 0x81, 0x4C,
-	0xF0, 0x90, 0x81, 0x4C, 0xE0, 0x60, 0x43, 0x90,
-	0x81, 0x2B, 0xE0, 0x44, 0x10, 0xF0, 0x90, 0x81,
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-	0xE4, 0xF5, 0x1D, 0x90, 0x81, 0x30, 0xE0, 0x75,
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-	0x2F, 0xE0, 0x2F, 0x12, 0x4F, 0xFC, 0x90, 0x01,
-	0x57, 0x74, 0x05, 0xF0, 0x90, 0x81, 0x2A, 0xE0,
-	0x20, 0xE2, 0x07, 0x7D, 0x01, 0x7F, 0x04, 0x12,
-	0x47, 0x3D, 0x22, 0x90, 0x05, 0x43, 0xE0, 0x7F,
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-	0x30, 0xE0, 0x07, 0x31, 0x73, 0xBF, 0x01, 0x05,
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-	0xAF, 0x01, 0xC3, 0xC0, 0xD0, 0x90, 0x81, 0x1E,
-	0xE0, 0xB4, 0x01, 0x04, 0x7F, 0x04, 0x80, 0x0B,
-	0x31, 0x73, 0xBF, 0x01, 0x04, 0x7F, 0x01, 0x80,
-	0x02, 0x7F, 0x02, 0x71, 0x0E, 0xD0, 0xD0, 0x92,
-	0xAF, 0x22, 0x90, 0x81, 0x4B, 0xE0, 0x60, 0x0F,
-	0xE4, 0xF0, 0x90, 0x05, 0x53, 0xE0, 0x44, 0x02,
-	0xF0, 0x90, 0x05, 0xFC, 0xE0, 0x04, 0xF0, 0x90,
-	0x81, 0x1F, 0xE0, 0x30, 0xE0, 0x10, 0xA3, 0x74,
-	0x01, 0xF0, 0x90, 0x81, 0x1F, 0xE0, 0xFF, 0xC3,
-	0x13, 0x30, 0xE0, 0x02, 0x31, 0x9E, 0x11, 0xC4,
-	0x90, 0x81, 0x3F, 0xE0, 0x30, 0xE0, 0x07, 0x91,
-	0x65, 0x90, 0x05, 0x22, 0xE4, 0xF0, 0x22, 0x90,
-	0x81, 0x1F, 0xE0, 0xFF, 0x30, 0xE0, 0x3D, 0x90,
-	0x81, 0x23, 0xE0, 0x7E, 0x00, 0xB4, 0x02, 0x02,
-	0x7E, 0x01, 0x90, 0x81, 0x22, 0xE0, 0x7D, 0x00,
-	0xB4, 0x04, 0x02, 0x7D, 0x01, 0xED, 0x4E, 0x70,
-	0x23, 0xEF, 0xC3, 0x13, 0x30, 0xE0, 0x02, 0x21,
-	0x9E, 0x51, 0x45, 0x90, 0x81, 0x23, 0xE0, 0xB4,
-	0x08, 0x06, 0xE4, 0xFD, 0x7F, 0x0C, 0x80, 0x09,
-	0x90, 0x81, 0x23, 0xE0, 0x70, 0x06, 0xFD, 0x7F,
-	0x04, 0x12, 0x47, 0x3D, 0x22, 0x90, 0x81, 0x1E,
-	0xE0, 0xB4, 0x01, 0x0F, 0x90, 0x81, 0x23, 0xE0,
-	0x64, 0x02, 0x60, 0x07, 0x7D, 0x01, 0x7F, 0x02,
-	0x12, 0x47, 0x3D, 0x90, 0x81, 0x27, 0xE0, 0x64,
-	0x02, 0x60, 0x14, 0x90, 0x81, 0x26, 0xE0, 0x54,
-	0x0F, 0x60, 0x0C, 0x12, 0x4E, 0xAB, 0xEF, 0x70,
-	0x06, 0xFD, 0x7F, 0x0C, 0x12, 0x47, 0x3D, 0x22,
-	0x90, 0x81, 0x1F, 0xE0, 0xFF, 0x30, 0xE0, 0x3F,
-	0x90, 0x81, 0x23, 0xE0, 0x7E, 0x00, 0xB4, 0x02,
-	0x02, 0x7E, 0x01, 0x90, 0x81, 0x22, 0xE0, 0x7D,
-	0x00, 0xB4, 0x04, 0x02, 0x7D, 0x01, 0xED, 0x4E,
-	0x70, 0x25, 0xEF, 0xC3, 0x13, 0x30, 0xE0, 0x02,
-	0x21, 0x9E, 0x12, 0x74, 0xAC, 0x90, 0x81, 0x23,
-	0xE0, 0xB4, 0x0C, 0x06, 0xE4, 0xFD, 0x7F, 0x08,
-	0x80, 0x0A, 0x90, 0x81, 0x23, 0xE0, 0xB4, 0x04,
-	0x06, 0xE4, 0xFD, 0xFF, 0x12, 0x47, 0x3D, 0x22,
-	0xD3, 0x10, 0xAF, 0x01, 0xC3, 0xC0, 0xD0, 0x90,
-	0x81, 0xCB, 0x12, 0x45, 0x1F, 0x12, 0x1F, 0xA4,
-	0xFF, 0x90, 0x81, 0x1E, 0xF0, 0xBF, 0x01, 0x12,
-	0x90, 0x81, 0xCB, 0x12, 0x45, 0x16, 0x90, 0x00,
-	0x01, 0x12, 0x1F, 0xBD, 0x64, 0x01, 0x60, 0x21,
-	0x80, 0x1D, 0x90, 0x81, 0xCB, 0x12, 0x45, 0x16,
-	0x90, 0x00, 0x01, 0x12, 0x1F, 0xBD, 0x64, 0x01,
-	0x60, 0x0F, 0x90, 0x81, 0x1F, 0xE0, 0x20, 0xE0,
-	0x06, 0xE4, 0xFF, 0x71, 0x0E, 0x80, 0x02, 0x31,
-	0x9E, 0xD0, 0xD0, 0x92, 0xAF, 0x22, 0xD3, 0x10,
-	0xAF, 0x01, 0xC3, 0xC0, 0xD0, 0x90, 0x81, 0x22,
-	0xE0, 0x90, 0x82, 0x16, 0xF0, 0x6F, 0x70, 0x02,
-	0x81, 0x04, 0xEF, 0x14, 0x60, 0x3E, 0x14, 0x60,
-	0x62, 0x14, 0x70, 0x02, 0x61, 0xB8, 0x14, 0x70,
-	0x02, 0x61, 0xDF, 0x24, 0x04, 0x60, 0x02, 0x81,
-	0x04, 0x90, 0x82, 0x16, 0xE0, 0xFF, 0xB4, 0x04,
-	0x04, 0x91, 0x41, 0x81, 0x04, 0xEF, 0xB4, 0x02,
-	0x04, 0x91, 0x50, 0x81, 0x04, 0x90, 0x82, 0x16,
-	0xE0, 0xFF, 0xB4, 0x03, 0x04, 0x91, 0x54, 0x81,
-	0x04, 0xEF, 0x64, 0x01, 0x60, 0x02, 0x81, 0x04,
-	0x91, 0x43, 0x81, 0x04, 0x90, 0x82, 0x16, 0xE0,
-	0xFF, 0xB4, 0x04, 0x04, 0x91, 0xF3, 0x81, 0x04,
-	0xEF, 0xB4, 0x02, 0x04, 0x91, 0x58, 0x81, 0x04,
-	0x90, 0x82, 0x16, 0xE0, 0xFF, 0xB4, 0x03, 0x04,
-	0x91, 0xE8, 0x81, 0x04, 0xEF, 0x70, 0x7D, 0x91,
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-	0xF0, 0x74, 0x57, 0xA3, 0xF0, 0x90, 0x81, 0x58,
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-	0x31, 0x13, 0x90, 0x01, 0x64, 0x74, 0x01, 0xF0,
-	0x02, 0x2D, 0xA7, 0x31, 0x81, 0x31, 0xB1, 0x31,
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-	0x12, 0x32, 0x1E, 0xAD, 0x36, 0x7F, 0x51, 0x12,
-	0x32, 0x1E, 0xAD, 0x37, 0x7F, 0x52, 0x12, 0x32,
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-	0x07, 0x75, 0x40, 0x02, 0x90, 0x01, 0x30, 0xE5,
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-	0x3F, 0xF0, 0xA3, 0xE5, 0x40, 0xF0, 0x22, 0x75,
-	0x45, 0x0E, 0x75, 0x46, 0x01, 0x43, 0x46, 0x10,
-	0x75, 0x47, 0x03, 0x75, 0x48, 0x62, 0x90, 0x01,
-	0x38, 0xE5, 0x45, 0xF0, 0xA3, 0xE5, 0x46, 0xF0,
-	0xA3, 0xE5, 0x47, 0xF0, 0xA3, 0xE5, 0x48, 0xF0,
-	0x22, 0x90, 0x01, 0x30, 0xE4, 0xF0, 0xA3, 0xF0,
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-	0xA3, 0xF0, 0xA3, 0xF0, 0xA3, 0xF0, 0xFD, 0x7F,
-	0x50, 0x12, 0x32, 0x1E, 0xE4, 0xFD, 0x7F, 0x51,
-	0x12, 0x32, 0x1E, 0xE4, 0xFD, 0x7F, 0x52, 0x12,
-	0x32, 0x1E, 0xE4, 0xFD, 0x7F, 0x53, 0x02, 0x32,
-	0x1E, 0x90, 0x01, 0x34, 0x74, 0xFF, 0xF0, 0xA3,
-	0xF0, 0xA3, 0xF0, 0xA3, 0xF0, 0x90, 0x01, 0x3C,
-	0xF0, 0xA3, 0xF0, 0xA3, 0xF0, 0xA3, 0xF0, 0xFD,
-	0x7F, 0x54, 0x12, 0x32, 0x1E, 0x7D, 0xFF, 0x7F,
-	0x55, 0x12, 0x32, 0x1E, 0x7D, 0xFF, 0x7F, 0x56,
-	0x12, 0x32, 0x1E, 0x7D, 0xFF, 0x7F, 0x57, 0x02,
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-	0xFD, 0x7F, 0x80, 0x12, 0x32, 0x1E, 0x90, 0xFD,
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-	0x90, 0x81, 0x41, 0xE0, 0x04, 0xF0, 0x7F, 0x03,
-	0x12, 0x43, 0x15, 0x90, 0x81, 0x41, 0xE0, 0x04,
-	0xF0, 0x31, 0x01, 0x51, 0x3F, 0x90, 0x00, 0x80,
-	0xE0, 0x44, 0x40, 0xFD, 0x7F, 0x80, 0x12, 0x32,
-	0x1E, 0x75, 0x20, 0xFF, 0x51, 0x68, 0x51, 0xF9,
-	0x51, 0x7F, 0xE4, 0xFF, 0x02, 0x43, 0x9E, 0x51,
-	0x62, 0x51, 0x6F, 0x51, 0xA7, 0x71, 0x4F, 0x51,
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-	0xE4, 0xA3, 0xF0, 0xA3, 0xF0, 0x22, 0xE4, 0xF5,
-	0x4D, 0x22, 0xE4, 0x90, 0x80, 0xDE, 0xF0, 0x22,
-	0x75, 0xE8, 0x03, 0x75, 0xA8, 0x84, 0x22, 0xE4,
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-	0x74, 0x01, 0xF2, 0x90, 0x02, 0x09, 0xE0, 0x78,
-	0x00, 0xF2, 0x08, 0x74, 0x20, 0xF2, 0x18, 0xE2,
-	0xFF, 0x30, 0xE0, 0x05, 0x08, 0xE2, 0x24, 0x80,
-	0xF2, 0xEF, 0xC3, 0x13, 0x90, 0xFD, 0x10, 0xF0,
-	0x78, 0x01, 0xE2, 0x24, 0x00, 0xF5, 0x82, 0xE4,
-	0x34, 0xFC, 0xF5, 0x83, 0xE0, 0x78, 0x03, 0xF2,
-	0x64, 0x04, 0x60, 0x0D, 0xE2, 0xFF, 0x64, 0x08,
-	0x60, 0x07, 0xEF, 0x64, 0x0C, 0x60, 0x02, 0x61,
-	0xDE, 0xE4, 0x78, 0x02, 0xF2, 0x78, 0x03, 0xE2,
-	0xFF, 0x18, 0xE2, 0xC3, 0x9F, 0x50, 0x2D, 0xE2,
-	0xFD, 0x18, 0xE2, 0x2D, 0x90, 0x81, 0x5A, 0xF0,
-	0xE0, 0xFF, 0x24, 0x00, 0xF5, 0x82, 0xE4, 0x34,
-	0xFC, 0xF5, 0x83, 0xE0, 0xFE, 0x74, 0x04, 0x2D,
-	0xF8, 0xEE, 0xF2, 0xEF, 0xB4, 0xFF, 0x06, 0x90,
-	0xFD, 0x10, 0xE0, 0x04, 0xF0, 0x78, 0x02, 0xE2,
-	0x04, 0xF2, 0x80, 0xC9, 0x78, 0x04, 0xE2, 0x78,
-	0x12, 0xF2, 0xFF, 0x78, 0x05, 0xE2, 0x78, 0x11,
-	0xF2, 0x78, 0x06, 0xE2, 0x78, 0x13, 0xF2, 0x78,
-	0x07, 0xE2, 0x78, 0x14, 0xF2, 0x78, 0x08, 0xE2,
-	0x78, 0x33, 0xF2, 0x78, 0x09, 0xE2, 0x78, 0x34,
-	0xF2, 0x78, 0x0A, 0xE2, 0x78, 0x35, 0xF2, 0x78,
-	0x0B, 0xE2, 0x78, 0x36, 0xF2, 0x78, 0x0C, 0xE2,
-	0x78, 0x37, 0xF2, 0x78, 0x0D, 0xE2, 0x78, 0x38,
-	0xF2, 0x78, 0x0E, 0xE2, 0x78, 0x39, 0xF2, 0x78,
-	0x0F, 0xE2, 0x78, 0x3A, 0xF2, 0xE4, 0x78, 0x15,
-	0xF2, 0xEF, 0x24, 0xF8, 0x60, 0x75, 0x24, 0xFC,
-	0x60, 0x6C, 0x24, 0x08, 0x60, 0x02, 0x61, 0xC0,
-	0x78, 0x11, 0xE2, 0xB4, 0x01, 0x05, 0x12, 0x29,
-	0xC5, 0x61, 0xC5, 0x78, 0x11, 0xE2, 0xB4, 0x02,
-	0x05, 0x12, 0x11, 0xBD, 0x61, 0xC5, 0x78, 0x11,
-	0xE2, 0xB4, 0x03, 0x04, 0xF1, 0x06, 0x61, 0xC5,
-	0x78, 0x11, 0xE2, 0xB4, 0x10, 0x17, 0x78, 0x14,
-	0xE2, 0xFE, 0x18, 0xE2, 0xFD, 0xED, 0xFF, 0x78,
-	0x16, 0xEE, 0xF2, 0xFE, 0x08, 0xEF, 0xF2, 0xFF,
-	0x12, 0x32, 0xAA, 0x61, 0xC5, 0x78, 0x11, 0xE2,
-	0xB4, 0x11, 0x17, 0x78, 0x14, 0xE2, 0xFE, 0x18,
-	0xE2, 0xFD, 0xED, 0xFF, 0x78, 0x16, 0xEE, 0xF2,
-	0xFE, 0x08, 0xEF, 0xF2, 0xFF, 0x12, 0x32, 0x06,
-	0x61, 0xC5, 0x78, 0x11, 0xE2, 0xF4, 0x60, 0x02,
-	0x61, 0xC5, 0x18, 0xF2, 0x61, 0xC5, 0x78, 0x15,
-	0x74, 0x01, 0xF2, 0x78, 0x11, 0xE2, 0x64, 0x07,
-	0x60, 0x02, 0x61, 0xAA, 0x78, 0x34, 0xE2, 0xFF,
-	0xE4, 0xFC, 0xFD, 0xFE, 0x78, 0x08, 0x12, 0x20,
-	0xBB, 0xC0, 0x04, 0xA9, 0x05, 0xAA, 0x06, 0xAB,
-	0x07, 0x78, 0x33, 0xE2, 0xFF, 0xE4, 0xFC, 0xFD,
-	0xFE, 0xD0, 0x00, 0x12, 0x44, 0xCC, 0xC0, 0x04,
-	0xC0, 0x05, 0xC0, 0x06, 0xC0, 0x07, 0x78, 0x35,
-	0xE2, 0xFF, 0xE4, 0xFC, 0xFD, 0xFE, 0x78, 0x10,
-	0x12, 0x20, 0xBB, 0xD0, 0x03, 0xD0, 0x02, 0xD0,
-	0x01, 0xD0, 0x00, 0x12, 0x44, 0xCC, 0x78, 0x18,
-	0x12, 0x44, 0xFE, 0x78, 0x15, 0xE2, 0x70, 0x02,
-	0x61, 0x93, 0x18, 0xE2, 0xFF, 0x18, 0xE2, 0xFD,
-	0x31, 0x5F, 0x78, 0x1C, 0x12, 0x44, 0xFE, 0x78,
-	0x38, 0xE2, 0xFF, 0xE4, 0xFC, 0xFD, 0xFE, 0x78,
-	0x08, 0x12, 0x20, 0xBB, 0xC0, 0x04, 0xA9, 0x05,
-	0xAA, 0x06, 0xAB, 0x07, 0x78, 0x37, 0xE2, 0xFF,
-	0xE4, 0xFC, 0xFD, 0xFE, 0xD0, 0x00, 0x12, 0x44,
-	0xCC, 0xC0, 0x04, 0xC0, 0x05, 0xC0, 0x06, 0xC0,
-	0x07, 0x78, 0x39, 0xE2, 0xFF, 0xE4, 0xFC, 0xFD,
-	0xFE, 0x78, 0x10, 0x12, 0x20, 0xBB, 0xD0, 0x03,
-	0xD0, 0x02, 0xD0, 0x01, 0xD0, 0x00, 0x12, 0x44,
-	0xCC, 0x78, 0x20, 0x12, 0x44, 0xFE, 0x78, 0x20,
-	0x12, 0x44, 0xE5, 0x12, 0x20, 0x9B, 0x78, 0x1C,
-	0x12, 0x44, 0xF1, 0x12, 0x44, 0xBF, 0xC0, 0x04,
-	0xC0, 0x05, 0xC0, 0x06, 0xC0, 0x07, 0x78, 0x18,
-	0x12, 0x44, 0xE5, 0x78, 0x20, 0x12, 0x44, 0xF1,
-	0x12, 0x44, 0xBF, 0xD0, 0x03, 0xD0, 0x02, 0xD0,
-	0x01, 0xD0, 0x00, 0x12, 0x44, 0xCC, 0x78, 0x18,
-	0x12, 0x44, 0xFE, 0x78, 0x18, 0x12, 0x44, 0xE5,
-	0x90, 0x81, 0xF9, 0x12, 0x20, 0xCE, 0x78, 0x13,
-	0xE2, 0xFD, 0x08, 0xE2, 0xFF, 0x12, 0x55, 0x1C,
-	0x80, 0x1B, 0x78, 0x13, 0xE2, 0xFF, 0x08, 0xE2,
-	0xFD, 0x78, 0x11, 0xE2, 0xFB, 0x78, 0x15, 0xE2,
-	0x90, 0x81, 0xBC, 0xF0, 0x71, 0xE1, 0x80, 0x05,
-	0x78, 0x10, 0x74, 0x02, 0xF2, 0x78, 0x10, 0xE2,
-	0xFF, 0xC3, 0x94, 0x02, 0x50, 0x10, 0xEF, 0x60,
-	0x0A, 0x78, 0x02, 0xE2, 0xFF, 0x18, 0xE2, 0x2F,
-	0xF2, 0x21, 0x90, 0x7F, 0x01, 0x22, 0x7F, 0x00,
-	0x22, 0xAC, 0x07, 0xED, 0xAD, 0x04, 0x78, 0x24,
-	0xF2, 0xED, 0x08, 0xF2, 0xEB, 0xB4, 0x04, 0x07,
-	0x78, 0x27, 0x74, 0x01, 0xF2, 0x80, 0x0E, 0xEB,
-	0x78, 0x27, 0xB4, 0x05, 0x05, 0x74, 0x02, 0xF2,
-	0x80, 0x03, 0x74, 0x04, 0xF2, 0xD3, 0x78, 0x25,
-	0xE2, 0x94, 0xFF, 0x18, 0xE2, 0x94, 0x00, 0x50,
-	0x63, 0xE4, 0x78, 0x26, 0xF2, 0x78, 0x27, 0xE2,
-	0xFF, 0x18, 0xE2, 0xFE, 0xC3, 0x9F, 0x40, 0x02,
-	0xA1, 0x7F, 0x74, 0x33, 0x2E, 0xF8, 0xE2, 0x78,
-	0x28, 0xF2, 0x90, 0x81, 0xBC, 0xE0, 0x60, 0x2D,
-	0x74, 0x37, 0x2E, 0xF8, 0xE2, 0x78, 0x32, 0xF2,
-	0xEE, 0xFF, 0x78, 0x25, 0xE2, 0x2F, 0xFF, 0x18,
-	0xE2, 0x34, 0x00, 0x8F, 0x82, 0xF5, 0x83, 0xE0,
-	0x78, 0x29, 0xF2, 0x78, 0x32, 0xE2, 0xFF, 0xF4,
-	0xFE, 0x78, 0x29, 0xE2, 0x5E, 0xFE, 0x18, 0xE2,
-	0xFD, 0xEF, 0x5D, 0x4E, 0xF2, 0x78, 0x24, 0x08,
-	0xE2, 0xFF, 0x08, 0xE2, 0x2F, 0xFF, 0x78, 0x28,
-	0xE2, 0xFD, 0x12, 0x32, 0x1E, 0x78, 0x26, 0xE2,
-	0x04, 0xF2, 0x80, 0xA1, 0xD3, 0x78, 0x25, 0xE2,
-	0x94, 0xFF, 0x18, 0xE2, 0x94, 0x07, 0x50, 0x69,
-	0xE4, 0x78, 0x26, 0xF2, 0x78, 0x27, 0xE2, 0xFF,
-	0x18, 0xE2, 0xFE, 0xC3, 0x9F, 0x40, 0x02, 0xA1,
-	0x7F, 0x74, 0x33, 0x2E, 0xF8, 0xE2, 0x78, 0x28,
-	0xF2, 0x90, 0x81, 0xBC, 0xE0, 0x60, 0x2D, 0x78,
-	0x26, 0xE2, 0xFF, 0xFD, 0x18, 0xE2, 0x2D, 0xFD,
-	0x18, 0xE2, 0x34, 0x00, 0x8D, 0x82, 0xF5, 0x83,
-	0xE0, 0x78, 0x29, 0xF2, 0x74, 0x37, 0x2F, 0xF8,
-	0xE2, 0x78, 0x32, 0xF2, 0xE2, 0xFF, 0xF4, 0xFE,
-	0x78, 0x29, 0xE2, 0x5E, 0xFE, 0x18, 0xE2, 0xFD,
-	0xEF, 0x5D, 0x4E, 0xF2, 0x78, 0x28, 0xE2, 0xFF,
-	0x78, 0x26, 0xE2, 0xFD, 0x18, 0xE2, 0x2D, 0xFD,
-	0x18, 0xE2, 0x34, 0x00, 0x8D, 0x82, 0xF5, 0x83,
-	0xEF, 0xF0, 0x78, 0x26, 0xE2, 0x04, 0xF2, 0x80,
-	0x9B, 0x90, 0x81, 0xBC, 0xE0, 0x60, 0x0F, 0x78,
-	0x24, 0xE2, 0xFE, 0x08, 0xE2, 0xFF, 0x12, 0x2D,
-	0x5C, 0x78, 0x2E, 0x12, 0x44, 0xFE, 0xE4, 0x78,
-	0x26, 0xF2, 0x78, 0x27, 0xE2, 0xFF, 0x18, 0xE2,
-	0xFE, 0xC3, 0x9F, 0x50, 0x5D, 0x74, 0x33, 0x2E,
-	0xF8, 0xE2, 0x78, 0x28, 0xF2, 0x90, 0x81, 0xBC,
-	0xE0, 0x60, 0x2B, 0x78, 0x2E, 0x12, 0x44, 0xE5,
-	0x78, 0x26, 0xE2, 0xFB, 0x75, 0xF0, 0x08, 0xA4,
-	0xF9, 0xF8, 0x12, 0x20, 0xA8, 0x78, 0x29, 0xEF,
-	0xF2, 0x74, 0x37, 0x2B, 0xF8, 0xE2, 0x78, 0x32,
-	0xF2, 0xE2, 0xFE, 0xF4, 0x5F, 0xFF, 0x78, 0x28,
-	0xE2, 0xFD, 0xEE, 0x5D, 0x4F, 0xF2, 0x78, 0x28,
-	0xE2, 0xFF, 0x78, 0x26, 0xE2, 0xFD, 0xC3, 0x74,
-	0x03, 0x9D, 0xFD, 0xE4, 0x94, 0x00, 0xFC, 0x7B,
-	0xFE, 0x74, 0x2A, 0x2D, 0xF9, 0x74, 0x80, 0x3C,
-	0xFA, 0xEF, 0x12, 0x1F, 0xEA, 0xE2, 0x04, 0xF2,
-	0x80, 0x98, 0x78, 0x2A, 0x12, 0x44, 0xE5, 0x90,
-	0x85, 0xBB, 0x12, 0x20, 0xCE, 0x78, 0x24, 0xE2,
-	0xFE, 0x08, 0xE2, 0xFF, 0x12, 0x2E, 0xA2, 0x22,
-	0x22, 0x90, 0x81, 0xCB, 0x12, 0x45, 0x1F, 0x90,
-	0x00, 0x01, 0x12, 0x1F, 0xBD, 0xFF, 0xFE, 0x12,
-	0x1F, 0xA4, 0xFD, 0xC3, 0x13, 0x30, 0xE0, 0x12,
-	0x90, 0x81, 0xCB, 0x12, 0x45, 0x16, 0x90, 0x00,
-	0x02, 0x12, 0x1F, 0xBD, 0x90, 0x81, 0xCF, 0xF0,
-	0x80, 0x05, 0x90, 0x81, 0xCF, 0xEF, 0xF0, 0x90,
-	0x81, 0xCE, 0xEE, 0xF0, 0x90, 0x81, 0xCF, 0xE0,
-	0xFE, 0x90, 0x81, 0xCE, 0xE0, 0xFF, 0xD3, 0x9E,
-	0x50, 0x38, 0x90, 0x81, 0xCB, 0x12, 0x45, 0x16,
-	0x12, 0x1F, 0xA4, 0x54, 0x01, 0xFE, 0x74, 0xDE,
-	0x2F, 0xF5, 0x82, 0xE4, 0x34, 0x80, 0xF5, 0x83,
-	0xEE, 0xF0, 0x74, 0xDE, 0x2F, 0xF5, 0x82, 0xE4,
-	0x34, 0x80, 0xF5, 0x83, 0xE0, 0x70, 0x04, 0xD1,
-	0x25, 0x80, 0x07, 0x90, 0x81, 0xCE, 0xE0, 0xFF,
-	0xB1, 0x80, 0x90, 0x81, 0xCE, 0xE0, 0x04, 0xF0,
-	0x80, 0xBA, 0x90, 0x80, 0xDE, 0xE0, 0x70, 0x24,
-	0x90, 0x81, 0x2A, 0xE0, 0x70, 0x04, 0xFF, 0x12,
-	0x49, 0x93, 0x90, 0x81, 0x2A, 0xE0, 0x64, 0x0C,
-	0x60, 0x02, 0xD1, 0x26, 0x90, 0x81, 0x24, 0xE0,
-	0x54, 0xF7, 0xF0, 0x54, 0xEF, 0xF0, 0x54, 0xBF,
-	0xF0, 0x54, 0x7F, 0xF0, 0x22, 0x22, 0x90, 0x06,
-	0x04, 0xE0, 0x54, 0x7F, 0xF0, 0x90, 0x05, 0x22,
-	0xE4, 0xF0, 0x90, 0x81, 0x2A, 0x74, 0x0C, 0xF0,
-	0x22, 0x90, 0x81, 0xED, 0xEF, 0xF0, 0xA3, 0xED,
-	0xF0, 0xAD, 0x03, 0xAC, 0x02, 0xE4, 0x90, 0x81,
-	0xF5, 0xF0, 0xA3, 0xF0, 0x90, 0x01, 0xC4, 0x74,
-	0x39, 0xF0, 0x74, 0x66, 0xA3, 0xF0, 0xEC, 0x54,
-	0x3F, 0xFC, 0x90, 0x01, 0x40, 0xED, 0xF0, 0xAE,
-	0x04, 0xEE, 0xA3, 0xF0, 0x90, 0x81, 0xED, 0xE0,
-	0x24, 0x81, 0x60, 0x34, 0x24, 0xDA, 0x60, 0x1C,
-	0x24, 0x3C, 0x70, 0x41, 0x90, 0x81, 0xEE, 0xE0,
-	0xC4, 0x33, 0x33, 0x33, 0x54, 0x80, 0x90, 0x81,
-	0xF2, 0xF0, 0xA3, 0x74, 0x69, 0xF0, 0xA3, 0x74,
-	0x80, 0xF0, 0x80, 0x2C, 0x90, 0x81, 0xEE, 0xE0,
-	0x54, 0x01, 0x90, 0x81, 0xF2, 0xF0, 0xA3, 0x74,
-	0xA5, 0xF0, 0xA3, 0x74, 0x01, 0xF0, 0x80, 0x18,
-	0x90, 0x81, 0xEE, 0xE0, 0xC4, 0x54, 0x10, 0x90,
-	0x81, 0xF2, 0xF0, 0xA3, 0x74, 0x7F, 0xF0, 0xA3,
-	0x74, 0x10, 0xF0, 0x80, 0x03, 0x7F, 0x00, 0x22,
-	0x90, 0x81, 0xF3, 0xE0, 0x90, 0x01, 0x06, 0xF0,
-	0x90, 0x81, 0xF2, 0xE0, 0x60, 0x0E, 0x90, 0x01,
-	0x42, 0xF0, 0x90, 0x81, 0xF1, 0xE0, 0x90, 0x01,
-	0x43, 0xF0, 0x80, 0x0D, 0x90, 0x01, 0x43, 0xE4,
-	0xF0, 0x90, 0x81, 0xF2, 0xE0, 0x90, 0x01, 0x42,
-	0xF0, 0x90, 0x81, 0xF4, 0xE0, 0xFF, 0x90, 0x01,
-	0x42, 0xE0, 0x5F, 0xFF, 0x90, 0x81, 0xF2, 0xE0,
-	0x6F, 0x60, 0xEE, 0x74, 0x39, 0x04, 0x90, 0x01,
-	0xC4, 0xF0, 0x74, 0x66, 0xA3, 0xF0, 0x90, 0x01,
-	0x43, 0xE4, 0xF0, 0x7F, 0x01, 0x22, 0xE4, 0x90,
-	0x81, 0x6A, 0xF0, 0x90, 0x87, 0x5F, 0xE0, 0x90,
-	0x81, 0x69, 0xF0, 0xE4, 0x90, 0x81, 0x76, 0xF0,
-	0x90, 0x81, 0x66, 0xF0, 0x90, 0x81, 0x66, 0xE0,
-	0xFF, 0xC3, 0x94, 0x40, 0x50, 0x15, 0x74, 0x79,
-	0x2F, 0xF5, 0x82, 0xE4, 0x34, 0x81, 0xF5, 0x83,
-	0x74, 0xFF, 0xF0, 0x90, 0x81, 0x66, 0xE0, 0x04,
-	0xF0, 0x80, 0xE1, 0xE4, 0x90, 0x81, 0x66, 0xF0,
-	0x90, 0x81, 0x69, 0xE0, 0xFF, 0x90, 0x81, 0x66,
-	0xE0, 0xFE, 0xC3, 0x9F, 0x40, 0x03, 0x02, 0x68,
-	0x12, 0x74, 0xDF, 0x2E, 0xF9, 0xE4, 0x34, 0x86,
-	0x75, 0x13, 0x01, 0xF5, 0x14, 0x89, 0x15, 0x75,
-	0x16, 0x0A, 0x7B, 0x01, 0x7A, 0x81, 0x79, 0x5B,
-	0x12, 0x2B, 0xED, 0x90, 0x81, 0x5C, 0xE0, 0xFF,
-	0x12, 0x2F, 0x27, 0xEF, 0x04, 0x90, 0x81, 0x76,
-	0xF0, 0x90, 0x81, 0x5B, 0xE0, 0xFF, 0xA3, 0xE0,
-	0xFD, 0x12, 0x31, 0xEA, 0xEF, 0x24, 0xC8, 0x90,
-	0x81, 0x78, 0xF0, 0x75, 0xF0, 0x08, 0xA4, 0xF0,
-	0x90, 0x81, 0x5C, 0xE0, 0x54, 0x0F, 0x90, 0x81,
-	0x77, 0xF0, 0xE4, 0x90, 0x81, 0x65, 0xF0, 0x90,
-	0x81, 0x67, 0xF0, 0x90, 0x81, 0x67, 0xE0, 0xFF,
-	0xC3, 0x94, 0x04, 0x50, 0x57, 0x90, 0x81, 0x77,
-	0xE0, 0xFE, 0xA8, 0x07, 0x08, 0x80, 0x02, 0xC3,
-	0x13, 0xD8, 0xFC, 0x20, 0xE0, 0x3E, 0x90, 0x81,
-	0x67, 0xE0, 0x25, 0xE0, 0xFF, 0x90, 0x81, 0x78,
-	0xE0, 0x2F, 0x24, 0x79, 0xF9, 0xE4, 0x34, 0x81,
-	0xFA, 0x7B, 0x01, 0xC0, 0x03, 0xC0, 0x01, 0x90,
-	0x81, 0x65, 0xE0, 0x75, 0xF0, 0x02, 0xA4, 0x24,
-	0x5D, 0xF9, 0x74, 0x81, 0x35, 0xF0, 0x8B, 0x13,
-	0xF5, 0x14, 0x89, 0x15, 0x75, 0x16, 0x02, 0xD0,
-	0x01, 0xD0, 0x03, 0x12, 0x2B, 0xED, 0x90, 0x81,
-	0x65, 0xE0, 0x04, 0xF0, 0x90, 0x81, 0x67, 0xE0,
-	0x04, 0xF0, 0x80, 0x9F, 0x90, 0x81, 0x76, 0xE0,
-	0xFF, 0x90, 0x81, 0x66, 0xE0, 0x2F, 0xF0, 0x02,
-	0x67, 0x40, 0xE4, 0x90, 0x81, 0x6A, 0xF0, 0x90,
-	0x81, 0x6A, 0xE0, 0xC3, 0x94, 0x40, 0x40, 0x02,
-	0x41, 0xAF, 0xE0, 0xFF, 0x24, 0x79, 0xF5, 0x82,
-	0xE4, 0x34, 0x81, 0xF5, 0x83, 0xE0, 0x90, 0x81,
-	0x6C, 0xF0, 0xE0, 0xFE, 0x54, 0xF0, 0xC4, 0x54,
-	0x0F, 0xFD, 0x90, 0x81, 0x6B, 0xF0, 0xEE, 0x54,
-	0x0F, 0xFE, 0xA3, 0xF0, 0x74, 0x7A, 0x2F, 0xF5,
-	0x82, 0xE4, 0x34, 0x81, 0xF5, 0x83, 0xE0, 0x90,
-	0x81, 0x6D, 0xF0, 0xFC, 0xEE, 0xFE, 0xEC, 0xFB,
-	0xEB, 0xFF, 0x90, 0x81, 0x72, 0xEE, 0xF0, 0xA3,
-	0xEF, 0xF0, 0xED, 0x12, 0x45, 0x28, 0x68, 0x8B,
-	0x00, 0x68, 0xC2, 0x01, 0x69, 0x73, 0x02, 0x6A,
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-	0x69, 0xAF, 0x06, 0x69, 0xAF, 0x07, 0x69, 0xAF,
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-	0xEF, 0xF0, 0x90, 0x81, 0x6D, 0xE0, 0xFF, 0x12,
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-	0x41, 0xA0, 0x90, 0x81, 0x6A, 0xE0, 0x24, 0x7C,
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-	0xFF, 0xE4, 0xFC, 0xFD, 0xFE, 0x78, 0x08, 0x12,
-	0x20, 0xBB, 0xA8, 0x04, 0xA9, 0x05, 0xAA, 0x06,
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-	0xF5, 0x82, 0xE4, 0x34, 0x81, 0xF5, 0x83, 0xE0,
-	0xFF, 0xE4, 0xFC, 0xFD, 0xFE, 0x12, 0x44, 0xCC,
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-	0xFC, 0xFD, 0xFE, 0x78, 0x10, 0x12, 0x20, 0xBB,
-	0xD0, 0x03, 0xD0, 0x02, 0xD0, 0x01, 0xD0, 0x00,
-	0x12, 0x44, 0xCC, 0xC0, 0x04, 0xC0, 0x05, 0xC0,
-	0x06, 0xC0, 0x07, 0x90, 0x81, 0x6A, 0xE0, 0x24,
-	0x7E, 0xF5, 0x82, 0xE4, 0x34, 0x81, 0xF5, 0x83,
-	0xE0, 0xFF, 0xE4, 0xFC, 0xFD, 0xFE, 0x78, 0x18,
-	0x12, 0x20, 0xBB, 0xD0, 0x03, 0xD0, 0x02, 0xD0,
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-	0x90, 0x81, 0x72, 0xE0, 0xFE, 0xA3, 0xE0, 0xFF,
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-	0x90, 0x81, 0x6A, 0xE0, 0x24, 0x7B, 0xF5, 0x82,
-	0xE4, 0x34, 0x81, 0xF5, 0x83, 0xE0, 0xFB, 0xE4,
-	0xFF, 0x12, 0x30, 0xC7, 0x80, 0x19, 0x90, 0x81,
-	0x6D, 0xE0, 0xFD, 0x90, 0x81, 0x6A, 0xE0, 0x24,
-	0x7B, 0xF5, 0x82, 0xE4, 0x34, 0x81, 0xF5, 0x83,
-	0xE0, 0xFB, 0xE4, 0xFF, 0x12, 0x30, 0x6A, 0x90,
-	0x81, 0x68, 0x74, 0x01, 0xF0, 0x41, 0xA0, 0x90,
-	0x81, 0x68, 0x74, 0x02, 0xF0, 0x90, 0x81, 0x6A,
-	0xE0, 0x24, 0x7C, 0xF5, 0x82, 0xE4, 0x34, 0x81,
-	0xF5, 0x83, 0xE0, 0xFF, 0xE4, 0xFC, 0xFD, 0xFE,
-	0x78, 0x08, 0x12, 0x20, 0xBB, 0xA8, 0x04, 0xA9,
-	0x05, 0xAA, 0x06, 0xAB, 0x07, 0x90, 0x81, 0x6A,
-	0xE0, 0x24, 0x7B, 0xF5, 0x82, 0xE4, 0x34, 0x81,
-	0xF5, 0x83, 0xE0, 0xFF, 0xE4, 0xFC, 0xFD, 0xFE,
-	0x12, 0x44, 0xCC, 0xC0, 0x04, 0xC0, 0x05, 0xC0,
-	0x06, 0xC0, 0x07, 0x90, 0x81, 0x6C, 0xE0, 0xFF,
-	0xE4, 0xFC, 0xFD, 0xFE, 0x78, 0x10, 0x12, 0x20,
-	0xBB, 0xD0, 0x03, 0xD0, 0x02, 0xD0, 0x01, 0xD0,
-	0x00, 0x12, 0x44, 0xCC, 0x90, 0x81, 0x6E, 0x12,
-	0x20, 0xCE, 0x90, 0x81, 0x6B, 0xE0, 0x24, 0xFB,
-	0xFF, 0xC0, 0x07, 0x90, 0x81, 0x6E, 0x12, 0x44,
-	0xD9, 0x90, 0x81, 0xF9, 0x12, 0x20, 0xCE, 0x90,
-	0x81, 0x6D, 0xE0, 0xFD, 0xD0, 0x07, 0x12, 0x55,
-	0x1C, 0x80, 0x6D, 0x90, 0x81, 0x68, 0x74, 0x01,
-	0xF0, 0x90, 0x81, 0x6A, 0xE0, 0x24, 0x7B, 0xF9,
-	0xE4, 0x34, 0x81, 0x75, 0x13, 0x01, 0xF5, 0x14,
-	0x89, 0x15, 0x75, 0x16, 0x01, 0x7B, 0xFE, 0x7A,
-	0x80, 0x79, 0x33, 0x12, 0x2B, 0xED, 0x90, 0x81,
-	0x6D, 0xE0, 0xFF, 0x90, 0x81, 0x6C, 0xE0, 0xFD,
-	0xE4, 0x90, 0x81, 0xBC, 0xF0, 0x7B, 0x04, 0x80,
-	0x34, 0x90, 0x81, 0x68, 0x74, 0x04, 0xF0, 0x90,
-	0x81, 0x6A, 0xE0, 0x24, 0x7B, 0xF9, 0xE4, 0x34,
-	0x81, 0x75, 0x13, 0x01, 0xF5, 0x14, 0x89, 0x15,
-	0x75, 0x16, 0x04, 0x7B, 0xFE, 0x7A, 0x80, 0x79,
-	0x33, 0x12, 0x2B, 0xED, 0x90, 0x81, 0x6D, 0xE0,
-	0xFF, 0x90, 0x81, 0x6C, 0xE0, 0xFD, 0xE4, 0x90,
-	0x81, 0xBC, 0xF0, 0x7B, 0x06, 0x12, 0x63, 0xE1,
-	0x90, 0x81, 0x68, 0xE0, 0x24, 0x02, 0xFF, 0x90,
-	0x81, 0x6A, 0xE0, 0x2F, 0xF0, 0x01, 0x17, 0x22,
-	0x90, 0x02, 0x09, 0xE0, 0xFD, 0x12, 0x1F, 0xA4,
-	0xFE, 0xAF, 0x05, 0xED, 0x2E, 0x90, 0x80, 0x3D,
-	0xF0, 0x90, 0x00, 0x01, 0x12, 0x1F, 0xBD, 0xFF,
-	0xED, 0x2F, 0x90, 0x80, 0x3E, 0xF0, 0x90, 0x00,
-	0x02, 0x12, 0x1F, 0xBD, 0xFF, 0xED, 0x2F, 0x90,
-	0x80, 0x3F, 0xF0, 0x90, 0x00, 0x03, 0x12, 0x1F,
-	0xBD, 0xFF, 0xED, 0x2F, 0x90, 0x80, 0x40, 0xF0,
-	0x90, 0x00, 0x04, 0x12, 0x1F, 0xBD, 0xFF, 0xAE,
-	0x05, 0xED, 0x2F, 0x90, 0x80, 0x41, 0xF0, 0x22,
-	0x90, 0x00, 0x02, 0x12, 0x1F, 0xBD, 0xFF, 0x30,
-	0xE0, 0x26, 0x12, 0x1F, 0xA4, 0x90, 0x81, 0x38,
-	0xF0, 0x90, 0x00, 0x01, 0x12, 0x1F, 0xBD, 0x90,
-	0x81, 0x39, 0xF0, 0xEF, 0x54, 0xFE, 0xFF, 0xA3,
-	0xE0, 0x54, 0x01, 0x4F, 0xF0, 0x90, 0x00, 0x03,
-	0x12, 0x1F, 0xBD, 0x90, 0x81, 0x3B, 0xF0, 0x22,
-	0x90, 0x81, 0x38, 0x74, 0x01, 0xF0, 0xA3, 0x74,
-	0x05, 0xF0, 0xA3, 0xE0, 0x54, 0x01, 0x44, 0x28,
-	0xF0, 0xA3, 0x74, 0x05, 0xF0, 0x22, 0x12, 0x1F,
-	0xA4, 0x90, 0x81, 0x3E, 0xF0, 0x90, 0x81, 0x3E,
-	0xE0, 0x90, 0x01, 0xE7, 0xF0, 0x22, 0x12, 0x1F,
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-	0x12, 0x1F, 0xBD, 0x90, 0x81, 0x4B, 0xF0, 0x22,
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-	0x81, 0xFD, 0xEE, 0xF0, 0xA3, 0xEF, 0xF0, 0xE4,
-	0xA3, 0xF0, 0xA3, 0xF0, 0x90, 0x81, 0xFD, 0xE0,
-	0xFE, 0xA3, 0xE0, 0xF5, 0x82, 0x8E, 0x83, 0xE0,
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-	0xE8, 0x90, 0x81, 0xFF, 0xE0, 0x94, 0x03, 0x40,
-	0x0B, 0x90, 0x01, 0xC0, 0xE0, 0x44, 0x80, 0xF0,
-	0x7F, 0x00, 0x80, 0x15, 0x90, 0x81, 0xFF, 0xE4,
-	0x75, 0xF0, 0x01, 0x12, 0x44, 0xA9, 0x7F, 0x0A,
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-	0x01, 0xD0, 0xD0, 0x92, 0xAF, 0x22, 0xD3, 0x10,
-	0xAF, 0x01, 0xC3, 0xC0, 0xD0, 0x90, 0x81, 0xD1,
-	0x12, 0x45, 0x1F, 0x90, 0x82, 0x0A, 0xE0, 0xFF,
-	0x04, 0xF0, 0x90, 0x00, 0x01, 0xEF, 0x12, 0x1F,
-	0xFC, 0x7F, 0xAF, 0x7E, 0x01, 0x71, 0x60, 0xEF,
-	0x60, 0x3A, 0x90, 0x81, 0xD1, 0x12, 0x45, 0x16,
-	0x8B, 0x13, 0x8A, 0x14, 0x89, 0x15, 0x90, 0x00,
-	0x0E, 0x12, 0x1F, 0xBD, 0x24, 0x02, 0xF5, 0x16,
-	0x7B, 0x01, 0x7A, 0x01, 0x79, 0xA0, 0x12, 0x2B,
-	0xED, 0x90, 0x81, 0xD1, 0x12, 0x45, 0x16, 0x90,
-	0x00, 0x0E, 0x12, 0x1F, 0xBD, 0x90, 0x01, 0xAE,
-	0xF0, 0xA3, 0x74, 0xFF, 0xF0, 0x90, 0x01, 0xCB,
-	0xE0, 0x64, 0x80, 0xF0, 0xD0, 0xD0, 0x92, 0xAF,
-	0x22, 0xD3, 0x10, 0xAF, 0x01, 0xC3, 0xC0, 0xD0,
-	0xE4, 0xFF, 0x90, 0x80, 0xD9, 0xE0, 0xFE, 0x90,
-	0x80, 0xD8, 0xE0, 0xFD, 0xB5, 0x06, 0x04, 0x7E,
-	0x01, 0x80, 0x02, 0x7E, 0x00, 0xEE, 0x64, 0x01,
-	0x60, 0x32, 0x90, 0x01, 0xAF, 0xE0, 0x70, 0x13,
-	0xED, 0x75, 0xF0, 0x0F, 0xA4, 0x24, 0x42, 0xF9,
-	0x74, 0x80, 0x35, 0xF0, 0xFA, 0x7B, 0x01, 0x71,
-	0xB6, 0x7F, 0x01, 0xEF, 0x60, 0x16, 0x90, 0x80,
-	0xD8, 0xE0, 0x04, 0xF0, 0xE0, 0x7F, 0x00, 0xB4,
-	0x0A, 0x02, 0x7F, 0x01, 0xEF, 0x60, 0x05, 0xE4,
-	0x90, 0x80, 0xD8, 0xF0, 0xD0, 0xD0, 0x92, 0xAF,
-	0x22, 0x8F, 0x0D, 0x22, 0x8F, 0x0E, 0x22, 0x22,
-	0x90, 0x01, 0x34, 0xE0, 0x55, 0x3D, 0xF5, 0x41,
-	0xA3, 0xE0, 0x55, 0x3E, 0xF5, 0x42, 0xA3, 0xE0,
-	0x55, 0x3F, 0xF5, 0x43, 0xA3, 0xE0, 0x55, 0x40,
-	0xF5, 0x44, 0x90, 0x01, 0x34, 0xE5, 0x41, 0xF0,
-	0xA3, 0xE5, 0x42, 0xF0, 0xA3, 0xE5, 0x43, 0xF0,
-	0xA3, 0xE5, 0x44, 0xF0, 0x22, 0x90, 0x01, 0x3C,
-	0xE0, 0x55, 0x45, 0xF5, 0x49, 0xA3, 0xE0, 0x55,
-	0x46, 0xF5, 0x4A, 0xA3, 0xE0, 0x55, 0x47, 0xF5,
-	0x4B, 0xA3, 0xE0, 0x55, 0x48, 0xF5, 0x4C, 0x90,
-	0x01, 0x3C, 0xE5, 0x49, 0xF0, 0xA3, 0xE5, 0x4A,
-	0xF0, 0xA3, 0xE5, 0x4B, 0xF0, 0xA3, 0xE5, 0x4C,
-	0xF0, 0x53, 0x91, 0xDF, 0x22, 0x90, 0x81, 0x1F,
-	0xE0, 0x30, 0xE0, 0x05, 0xE4, 0xA3, 0xF0, 0xA3,
-	0xF0, 0x22, 0x90, 0x80, 0xDE, 0xE0, 0x64, 0x01,
-	0x70, 0x19, 0x90, 0x81, 0x27, 0xE0, 0x60, 0x13,
-	0x90, 0x01, 0x57, 0xE4, 0xF0, 0x90, 0x01, 0x3C,
-	0x74, 0x02, 0x12, 0x4F, 0xF4, 0x90, 0x01, 0x57,
-	0x74, 0x05, 0xF0, 0x22, 0x90, 0x80, 0xDE, 0xE0,
-	0x64, 0x01, 0x70, 0x26, 0x90, 0x81, 0x27, 0xE0,
-	0x60, 0x20, 0x90, 0x01, 0x57, 0xE4, 0xF0, 0x90,
-	0x01, 0x3C, 0x74, 0x02, 0xF0, 0x90, 0x81, 0x24,
-	0xE0, 0x54, 0xFB, 0xF0, 0x90, 0x81, 0x2B, 0xE0,
-	0x54, 0xFD, 0xF0, 0x54, 0x07, 0x70, 0x03, 0x12,
-	0x47, 0x2A, 0x22, 0x90, 0x80, 0xDE, 0xE0, 0xB4,
-	0x01, 0x14, 0x90, 0x81, 0x27, 0xE0, 0x60, 0x0E,
-	0x90, 0x81, 0x26, 0xE0, 0x54, 0x0F, 0x64, 0x02,
-	0x60, 0x02, 0x80, 0x03, 0xD1, 0x7F, 0x22, 0x90,
-	0x04, 0x1D, 0xE0, 0x70, 0x13, 0x90, 0x80, 0x3E,
-	0xE0, 0xFF, 0xE4, 0xFD, 0xB1, 0x69, 0x8E, 0x4E,
-	0x8F, 0x4F, 0x90, 0x04, 0x1F, 0x74, 0x20, 0xF0,
-	0x22, 0xD3, 0x10, 0xAF, 0x01, 0xC3, 0xC0, 0xD0,
-	0x90, 0x82, 0x0E, 0xED, 0xF0, 0x90, 0x82, 0x0D,
-	0xEF, 0xF0, 0xE4, 0xFD, 0xFC, 0xF1, 0x37, 0x7C,
-	0x00, 0xAD, 0x07, 0x90, 0x82, 0x0D, 0xE0, 0x90,
-	0x04, 0x25, 0xF0, 0x90, 0x82, 0x0E, 0xE0, 0x60,
-	0x0E, 0x74, 0x0F, 0x2F, 0xF5, 0x82, 0xE4, 0x34,
-	0xFC, 0xF5, 0x83, 0xE0, 0x44, 0x80, 0xF0, 0xAF,
-	0x05, 0x74, 0x08, 0x2F, 0xF5, 0x82, 0xE4, 0x34,
-	0xFC, 0xF5, 0x83, 0xE4, 0xF0, 0x74, 0x09, 0x2F,
-	0xF5, 0x82, 0xE4, 0x34, 0xFC, 0xF5, 0x83, 0xE0,
-	0x54, 0xF0, 0xF0, 0x74, 0x21, 0x2D, 0xF5, 0x82,
-	0xE4, 0x34, 0xFC, 0xF5, 0x83, 0xE0, 0x54, 0xF7,
-	0xF0, 0xAE, 0x04, 0xAF, 0x05, 0xD0, 0xD0, 0x92,
-	0xAF, 0x22, 0x8F, 0x4E, 0xF1, 0x4B, 0xBF, 0x01,
-	0x18, 0x90, 0x80, 0x40, 0xE0, 0xFF, 0x7D, 0x01,
-	0xB1, 0x69, 0xAD, 0x07, 0xAC, 0x06, 0xAF, 0x4E,
-	0x12, 0x4F, 0x82, 0x90, 0x04, 0x1F, 0x74, 0x20,
-	0xF0, 0x22, 0x90, 0x06, 0xA9, 0xE0, 0x90, 0x81,
-	0x4C, 0xF0, 0xE0, 0xFD, 0x54, 0xC0, 0x70, 0x09,
-	0x90, 0x81, 0x2B, 0xE0, 0x54, 0xFE, 0xF0, 0x80,
-	0x72, 0xED, 0x30, 0xE6, 0x4B, 0x90, 0x81, 0x27,
-	0xE0, 0x64, 0x02, 0x70, 0x2A, 0x90, 0x81, 0x24,
-	0xE0, 0xFF, 0xC3, 0x13, 0x20, 0xE0, 0x09, 0x90,
-	0x81, 0x2B, 0xE0, 0x44, 0x01, 0xF0, 0x80, 0x28,
-	0x90, 0x81, 0x26, 0xE0, 0x54, 0x0F, 0x64, 0x01,
-	0x70, 0x2D, 0x90, 0x81, 0x2B, 0xE0, 0x44, 0x04,
-	0xF0, 0x7F, 0x01, 0xB1, 0xD2, 0x80, 0x20, 0x90,
-	0x81, 0x2B, 0xE0, 0x44, 0x01, 0xF0, 0x90, 0x81,
-	0x26, 0xE0, 0x54, 0x0F, 0x64, 0x02, 0x60, 0x04,
-	0xB1, 0x4F, 0x80, 0x0B, 0xD1, 0x7F, 0x80, 0x07,
-	0x90, 0x81, 0x2B, 0xE0, 0x54, 0xFE, 0xF0, 0x90,
-	0x81, 0x4C, 0xE0, 0x90, 0x81, 0x2B, 0x30, 0xE7,
-	0x11, 0x12, 0x4F, 0xF1, 0x90, 0x01, 0x57, 0x74,
-	0x05, 0xF0, 0x90, 0x81, 0x24, 0xE0, 0x44, 0x04,
-	0xF0, 0x22, 0xE0, 0x54, 0xFD, 0xF0, 0x22, 0x90,
-	0x01, 0x5F, 0xE4, 0xF0, 0x90, 0x01, 0x3C, 0x74,
-	0x08, 0xF0, 0xE4, 0xF5, 0x1D, 0x90, 0x81, 0x3A,
-	0xE0, 0xC3, 0x13, 0x54, 0x7F, 0xF5, 0x1E, 0xE4,
-	0xFB, 0xFD, 0x7F, 0x5C, 0x7E, 0x01, 0x12, 0x50,
-	0x05, 0x90, 0x01, 0x5F, 0x74, 0x05, 0xF0, 0x90,
-	0x06, 0x92, 0x74, 0x02, 0xF0, 0x90, 0x81, 0x24,
-	0xE0, 0x44, 0x10, 0xF0, 0x90, 0x81, 0x2A, 0xE0,
-	0x64, 0x0C, 0x60, 0x0C, 0xE4, 0xFD, 0x7F, 0x0C,
-	0x12, 0x47, 0x3D, 0xE4, 0xFF, 0x12, 0x4F, 0x0D,
-	0x22, 0xE4, 0x90, 0x81, 0x4C, 0xF0, 0x90, 0x06,
-	0xA9, 0xE0, 0x90, 0x81, 0x4C, 0xF0, 0xE0, 0x54,
-	0xC0, 0x70, 0x0D, 0x90, 0x81, 0x2B, 0xE0, 0x54,
-	0xFE, 0xF0, 0x54, 0xFD, 0xF0, 0x02, 0x47, 0x2A,
-	0x90, 0x81, 0x4C, 0xE0, 0x30, 0xE6, 0x21, 0x90,
-	0x81, 0x27, 0xE0, 0x64, 0x01, 0x70, 0x20, 0x90,
-	0x81, 0x2B, 0xE0, 0x44, 0x01, 0xF0, 0x90, 0x81,
-	0x26, 0xE0, 0x54, 0x0F, 0x64, 0x02, 0x60, 0x04,
-	0xB1, 0x4F, 0x80, 0x0B, 0xD1, 0x7F, 0x80, 0x07,
-	0x90, 0x81, 0x2B, 0xE0, 0x54, 0xFE, 0xF0, 0x90,
-	0x81, 0x4C, 0xE0, 0x90, 0x81, 0x2B, 0x30, 0xE7,
-	0x11, 0x12, 0x4F, 0xF1, 0x90, 0x01, 0x57, 0x74,
-	0x05, 0xF0, 0x90, 0x81, 0x24, 0xE0, 0x44, 0x04,
-	0xF0, 0x22, 0xE0, 0x54, 0xFD, 0xF0, 0x22, 0xE4,
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-	0x90, 0x81, 0x48, 0xF0, 0x22, 0x00, 0xBB, 0x8E,
-};
diff --git a/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c b/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c
index 51f03c3b53a4..52b3fba0fae1 100644
--- a/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c
+++ b/drivers/staging/rtl8188eu/hal/rtl8188e_hal_init.c
@@ -19,6 +19,7 @@
  ******************************************************************************/
 #define _HAL_INIT_C_
 
+#include <linux/firmware.h>
 #include <drv_types.h>
 #include <rtw_efuse.h>
 
@@ -588,13 +589,15 @@ s32 rtl8188e_FirmwareDownload(struct adapter *padapter)
 	u8 writeFW_retry = 0;
 	u32 fwdl_start_time;
 	struct hal_data_8188e *pHalData = GET_HAL_DATA(padapter);
-
-	u8 *FwImage;
-	u32			FwImageLen;
+	struct dvobj_priv *dvobj = adapter_to_dvobj(padapter);
+	struct device *device = dvobj_to_dev(dvobj);
 	struct rt_firmware *pFirmware = NULL;
+	const struct firmware *fw;
 	struct rt_firmware_hdr *pFwHdr = NULL;
 	u8 *pFirmwareBuf;
-	u32			FirmwareLen;
+	u32 FirmwareLen;
+	char fw_name[] = "rtlwifi/rtl8188eufw.bin";
+	static int log_version;
 
 	RT_TRACE(_module_hal_init_c_, _drv_info_, ("+%s\n", __func__));
 	pFirmware = (struct rt_firmware *)rtw_zmalloc(sizeof(struct rt_firmware));
@@ -603,27 +606,32 @@ s32 rtl8188e_FirmwareDownload(struct adapter *padapter)
 		goto Exit;
 	}
 
-	FwImage = (u8 *)Rtl8188E_FwImageArray;
-	FwImageLen = Rtl8188E_FWImgArrayLength;
-
-	pFirmware->eFWSource = FW_SOURCE_HEADER_FILE;
-
-	switch (pFirmware->eFWSource) {
-	case FW_SOURCE_IMG_FILE:
-		break;
-	case FW_SOURCE_HEADER_FILE:
-		if (FwImageLen > FW_8188E_SIZE) {
-			rtStatus = _FAIL;
-			RT_TRACE(_module_hal_init_c_, _drv_err_, ("Firmware size exceed 0x%X. Check it.\n", FW_8188E_SIZE));
-			goto Exit;
-		}
+	if (request_firmware(&fw, fw_name, device)) {
+		rtStatus = _FAIL;
+		goto Exit;
+	}
+	if (!fw) {
+		pr_err("Firmware %s not available\n", fw_name);
+		rtStatus = _FAIL;
+		goto Exit;
+	}
+	if (fw->size > FW_8188E_SIZE) {
+		rtStatus = _FAIL;
+		RT_TRACE(_module_hal_init_c_, _drv_err_, ("Firmware size exceed 0x%X. Check it.\n", FW_8188E_SIZE));
+		goto Exit;
+	}
 
-		pFirmware->szFwBuffer = FwImage;
-		pFirmware->ulFwLength = FwImageLen;
-		break;
+	pFirmware->szFwBuffer = kzalloc(FW_8188E_SIZE, GFP_KERNEL);
+	if (!pFirmware->szFwBuffer) {
+		rtStatus = _FAIL;
+		goto Exit;
 	}
+	memcpy(pFirmware->szFwBuffer, fw->data, fw->size);
+	pFirmware->ulFwLength = fw->size;
 	pFirmwareBuf = pFirmware->szFwBuffer;
 	FirmwareLen = pFirmware->ulFwLength;
+	release_firmware(fw);
+
 	DBG_88E_LEVEL(_drv_info_, "+%s: !bUsedWoWLANFw, FmrmwareLen:%d+\n", __func__, FirmwareLen);
 
 	/*  To Check Fw header. Added by tynli. 2009.12.04. */
@@ -633,8 +641,10 @@ s32 rtl8188e_FirmwareDownload(struct adapter *padapter)
 	pHalData->FirmwareSubVersion = pFwHdr->Subversion;
 	pHalData->FirmwareSignature = le16_to_cpu(pFwHdr->Signature);
 
-	DBG_88E("%s: fw_ver =%d fw_subver =%d sig = 0x%x\n",
-		__func__, pHalData->FirmwareVersion, pHalData->FirmwareSubVersion, pHalData->FirmwareSignature);
+	if (!log_version++)
+		pr_info("%sFirmware Version %d, SubVersion %d, Signature 0x%x\n",
+			DRIVER_PREFIX, pHalData->FirmwareVersion,
+			pHalData->FirmwareSubVersion, pHalData->FirmwareSignature);
 
 	if (IS_FW_HEADER_EXIST(pFwHdr)) {
 		/*  Shift 32 bytes for FW header */
@@ -677,7 +687,7 @@ s32 rtl8188e_FirmwareDownload(struct adapter *padapter)
 		goto Exit;
 	}
 	RT_TRACE(_module_hal_init_c_, _drv_info_, ("Firmware is ready to run!\n"));
-
+	kfree(pFirmware->szFwBuffer);
 Exit:
 
 	kfree(pFirmware);
diff --git a/drivers/staging/rtl8188eu/include/Hal8188EFWImg_CE.h b/drivers/staging/rtl8188eu/include/Hal8188EFWImg_CE.h
deleted file mode 100644
index 949c33b9ed68..000000000000
--- a/drivers/staging/rtl8188eu/include/Hal8188EFWImg_CE.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/******************************************************************************
-*
-* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
-*
-* This program is free software; you can redistribute it and/or modify it
-* under the terms of version 2 of the GNU General Public License as
-* published by the Free Software Foundation.
-*
-* This program is distributed in the hope that it will be useful, but WITHOUT
-* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
-* more details.
-*
-* You should have received a copy of the GNU General Public License along with
-* this program; if not, write to the Free Software Foundation, Inc.,
-* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
-*
-*
-******************************************************************************/
-#ifndef __INC_HAL8188E_FW_IMG_H
-#define __INC_HAL8188E_FW_IMG_H
-
-/* V10(1641) */
-#define Rtl8188EFWImgArrayLength 13904
-
-extern const u8 Rtl8188EFwImgArray[Rtl8188EFWImgArrayLength];
-
-#endif /* __INC_HAL8188E_FW_IMG_H */
diff --git a/drivers/staging/rtl8188eu/include/odm_precomp.h b/drivers/staging/rtl8188eu/include/odm_precomp.h
index 520cbbaac35f..d1d95f4b87a8 100644
--- a/drivers/staging/rtl8188eu/include/odm_precomp.h
+++ b/drivers/staging/rtl8188eu/include/odm_precomp.h
@@ -31,11 +31,6 @@
 #include <drv_types.h>
 #include <hal_intf.h>
 
-/* 2 Hardware Parameter Files */
-
-#include "Hal8188EFWImg_CE.h"
-
-
 /* 2 OutSrc Header Files */
 
 #include "odm.h"
-- 
cgit 


From ec83e611c21592c38744a5b86e1c8286ed1c4f90 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sun, 13 Oct 2013 20:22:03 -0700
Subject: staging: lustre: Use parenthesis around sizeof

Convert sizeof foo to sizeof(foo) to be more kernel style compatible.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/fld/fld_cache.c      |  2 +-
 drivers/staging/lustre/lustre/include/cl_object.h  | 12 +++----
 drivers/staging/lustre/lustre/include/lclient.h    |  4 +--
 .../lustre/lustre/include/lustre/lustre_idl.h      | 42 +++++++++++++---------
 drivers/staging/lustre/lustre/include/lustre_fid.h |  2 +-
 drivers/staging/lustre/lustre/include/obd.h        |  2 +-
 .../staging/lustre/lustre/include/obd_support.h    | 18 +++++-----
 drivers/staging/lustre/lustre/lclient/lcommon_cl.c |  2 +-
 drivers/staging/lustre/lustre/ldlm/ldlm_lock.c     |  2 +-
 drivers/staging/lustre/lustre/ldlm/ldlm_resource.c |  6 ++--
 .../lustre/lustre/libcfs/linux/linux-debug.c       |  2 +-
 drivers/staging/lustre/lustre/llite/file.c         |  4 +--
 drivers/staging/lustre/lustre/llite/llite_lib.c    |  4 +--
 drivers/staging/lustre/lustre/llite/rw.c           |  2 +-
 drivers/staging/lustre/lustre/lov/lov_dev.c        |  8 ++---
 drivers/staging/lustre/lustre/lov/lov_internal.h   |  2 +-
 drivers/staging/lustre/lustre/lov/lov_io.c         |  4 +--
 drivers/staging/lustre/lustre/lov/lov_lock.c       |  4 +--
 drivers/staging/lustre/lustre/lov/lov_object.c     |  4 +--
 drivers/staging/lustre/lustre/lov/lov_pack.c       |  2 +-
 drivers/staging/lustre/lustre/lov/lov_request.c    |  4 +--
 drivers/staging/lustre/lustre/obdclass/cl_io.c     |  6 ++--
 drivers/staging/lustre/lustre/obdclass/class_obd.c |  2 +-
 drivers/staging/lustre/lustre/obdclass/llog_test.c |  6 ++--
 drivers/staging/lustre/lustre/obdclass/lu_object.c | 13 +++----
 .../staging/lustre/lustre/obdclass/obd_config.c    |  6 ++--
 drivers/staging/lustre/lustre/obdclass/uuid.c      |  4 +--
 .../staging/lustre/lustre/obdecho/echo_client.c    |  2 +-
 drivers/staging/lustre/lustre/osc/osc_lock.c       |  2 +-
 drivers/staging/lustre/lustre/osc/osc_page.c       |  2 +-
 drivers/staging/lustre/lustre/osc/osc_request.c    |  2 +-
 drivers/staging/lustre/lustre/ptlrpc/client.c      |  4 +--
 drivers/staging/lustre/lustre/ptlrpc/import.c      |  2 +-
 drivers/staging/lustre/lustre/ptlrpc/layout.c      |  2 +-
 drivers/staging/lustre/lustre/ptlrpc/service.c     |  8 ++---
 35 files changed, 101 insertions(+), 92 deletions(-)

diff --git a/drivers/staging/lustre/lustre/fld/fld_cache.c b/drivers/staging/lustre/lustre/fld/fld_cache.c
index 25099cbe37eb..45315101848c 100644
--- a/drivers/staging/lustre/lustre/fld/fld_cache.c
+++ b/drivers/staging/lustre/lustre/fld/fld_cache.c
@@ -267,7 +267,7 @@ void fld_cache_punch_hole(struct fld_cache *cache,
 	const seqno_t new_end  = range->lsr_end;
 	struct fld_cache_entry *fldt;
 
-	OBD_ALLOC_GFP(fldt, sizeof *fldt, GFP_ATOMIC);
+	OBD_ALLOC_GFP(fldt, sizeof(*fldt), GFP_ATOMIC);
 	if (!fldt) {
 		OBD_FREE_PTR(f_new);
 		/* overlap is not allowed, so dont mess up list. */
diff --git a/drivers/staging/lustre/lustre/include/cl_object.h b/drivers/staging/lustre/lustre/include/cl_object.h
index edb40afe66f1..c485206fc6c2 100644
--- a/drivers/staging/lustre/lustre/include/cl_object.h
+++ b/drivers/staging/lustre/lustre/include/cl_object.h
@@ -3096,13 +3096,13 @@ struct cl_io *cl_io_top(struct cl_io *io);
 void cl_io_print(const struct lu_env *env, void *cookie,
 		 lu_printer_t printer, const struct cl_io *io);
 
-#define CL_IO_SLICE_CLEAN(foo_io, base)				 \
-do {								    \
-	typeof(foo_io) __foo_io = (foo_io);			     \
+#define CL_IO_SLICE_CLEAN(foo_io, base)					\
+do {									\
+	typeof(foo_io) __foo_io = (foo_io);				\
 									\
-	CLASSERT(offsetof(typeof(*__foo_io), base) == 0);	       \
-	memset(&__foo_io->base + 1, 0,				  \
-	       (sizeof *__foo_io) - sizeof __foo_io->base);	     \
+	CLASSERT(offsetof(typeof(*__foo_io), base) == 0);		\
+	memset(&__foo_io->base + 1, 0,					\
+	       sizeof(*__foo_io) - sizeof(__foo_io->base));		\
 } while (0)
 
 /** @} cl_io */
diff --git a/drivers/staging/lustre/lustre/include/lclient.h b/drivers/staging/lustre/lustre/include/lclient.h
index 9d4011f2908b..27316f7b7a70 100644
--- a/drivers/staging/lustre/lustre/include/lclient.h
+++ b/drivers/staging/lustre/lustre/include/lclient.h
@@ -388,8 +388,8 @@ __u16 ll_dirent_type_get(struct lu_dirent *ent);
 __u64 cl_fid_build_ino(const struct lu_fid *fid, int api32);
 __u32 cl_fid_build_gen(const struct lu_fid *fid);
 
-# define CLOBINVRNT(env, clob, expr)				    \
-	((void)sizeof(env), (void)sizeof(clob), (void)sizeof !!(expr))
+# define CLOBINVRNT(env, clob, expr)					\
+	((void)sizeof(env), (void)sizeof(clob), (void)sizeof(!!(expr)))
 
 int cl_init_ea_size(struct obd_export *md_exp, struct obd_export *dt_exp);
 int cl_ocd_update(struct obd_device *host,
diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
index 984235ccd3a5..5ca18d016014 100644
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_idl.h
@@ -831,9 +831,10 @@ static inline void lu_igif_build(struct lu_fid *fid, __u32 ino, __u32 gen)
 static inline void fid_cpu_to_le(struct lu_fid *dst, const struct lu_fid *src)
 {
 	/* check that all fields are converted */
-	CLASSERT(sizeof *src ==
-		 sizeof fid_seq(src) +
-		 sizeof fid_oid(src) + sizeof fid_ver(src));
+	CLASSERT(sizeof(*src) ==
+		 sizeof(fid_seq(src)) +
+		 sizeof(fid_oid(src)) +
+		 sizeof(fid_ver(src)));
 	dst->f_seq = cpu_to_le64(fid_seq(src));
 	dst->f_oid = cpu_to_le32(fid_oid(src));
 	dst->f_ver = cpu_to_le32(fid_ver(src));
@@ -842,9 +843,10 @@ static inline void fid_cpu_to_le(struct lu_fid *dst, const struct lu_fid *src)
 static inline void fid_le_to_cpu(struct lu_fid *dst, const struct lu_fid *src)
 {
 	/* check that all fields are converted */
-	CLASSERT(sizeof *src ==
-		 sizeof fid_seq(src) +
-		 sizeof fid_oid(src) + sizeof fid_ver(src));
+	CLASSERT(sizeof(*src) ==
+		 sizeof(fid_seq(src)) +
+		 sizeof(fid_oid(src)) +
+		 sizeof(fid_ver(src)));
 	dst->f_seq = le64_to_cpu(fid_seq(src));
 	dst->f_oid = le32_to_cpu(fid_oid(src));
 	dst->f_ver = le32_to_cpu(fid_ver(src));
@@ -853,9 +855,10 @@ static inline void fid_le_to_cpu(struct lu_fid *dst, const struct lu_fid *src)
 static inline void fid_cpu_to_be(struct lu_fid *dst, const struct lu_fid *src)
 {
 	/* check that all fields are converted */
-	CLASSERT(sizeof *src ==
-		 sizeof fid_seq(src) +
-		 sizeof fid_oid(src) + sizeof fid_ver(src));
+	CLASSERT(sizeof(*src) ==
+		 sizeof(fid_seq(src)) +
+		 sizeof(fid_oid(src)) +
+		 sizeof(fid_ver(src)));
 	dst->f_seq = cpu_to_be64(fid_seq(src));
 	dst->f_oid = cpu_to_be32(fid_oid(src));
 	dst->f_ver = cpu_to_be32(fid_ver(src));
@@ -864,9 +867,10 @@ static inline void fid_cpu_to_be(struct lu_fid *dst, const struct lu_fid *src)
 static inline void fid_be_to_cpu(struct lu_fid *dst, const struct lu_fid *src)
 {
 	/* check that all fields are converted */
-	CLASSERT(sizeof *src ==
-		 sizeof fid_seq(src) +
-		 sizeof fid_oid(src) + sizeof fid_ver(src));
+	CLASSERT(sizeof(*src) ==
+		 sizeof(fid_seq(src)) +
+		 sizeof(fid_oid(src)) +
+		 sizeof(fid_ver(src)));
 	dst->f_seq = be64_to_cpu(fid_seq(src));
 	dst->f_oid = be32_to_cpu(fid_oid(src));
 	dst->f_ver = be32_to_cpu(fid_ver(src));
@@ -891,9 +895,11 @@ extern void lustre_swab_lu_seq_range(struct lu_seq_range *range);
 static inline int lu_fid_eq(const struct lu_fid *f0, const struct lu_fid *f1)
 {
 	/* Check that there is no alignment padding. */
-	CLASSERT(sizeof *f0 ==
-		 sizeof f0->f_seq + sizeof f0->f_oid + sizeof f0->f_ver);
-	return memcmp(f0, f1, sizeof *f0) == 0;
+	CLASSERT(sizeof(*f0) ==
+		 sizeof(f0->f_seq) +
+		 sizeof(f0->f_oid) +
+		 sizeof(f0->f_ver));
+	return memcmp(f0, f1, sizeof(*f0)) == 0;
 }
 
 #define __diff_normalize(val0, val1)			    \
@@ -1638,8 +1644,10 @@ static inline void lmm_oi_cpu_to_le(struct ost_id *dst_oi,
 
 /* extern void lustre_swab_lov_mds_md(struct lov_mds_md *llm); */
 
-#define MAX_MD_SIZE (sizeof(struct lov_mds_md) + 4 * sizeof(struct lov_ost_data))
-#define MIN_MD_SIZE (sizeof(struct lov_mds_md) + 1 * sizeof(struct lov_ost_data))
+#define MAX_MD_SIZE							\
+	(sizeof(struct lov_mds_md) + 4 * sizeof(struct lov_ost_data))
+#define MIN_MD_SIZE							\
+	(sizeof(struct lov_mds_md) + 1 * sizeof(struct lov_ost_data))
 
 #define XATTR_NAME_ACL_ACCESS   "system.posix_acl_access"
 #define XATTR_NAME_ACL_DEFAULT  "system.posix_acl_default"
diff --git a/drivers/staging/lustre/lustre/include/lustre_fid.h b/drivers/staging/lustre/lustre/include/lustre_fid.h
index d9d5814e318d..ff119532dafb 100644
--- a/drivers/staging/lustre/lustre/include/lustre_fid.h
+++ b/drivers/staging/lustre/lustre/include/lustre_fid.h
@@ -590,7 +590,7 @@ fid_build_pdo_res_name(const struct lu_fid *fid, unsigned int hash,
 static inline void ostid_build_res_name(struct ost_id *oi,
 					struct ldlm_res_id *name)
 {
-	memset(name, 0, sizeof *name);
+	memset(name, 0, sizeof(*name));
 	if (fid_seq_is_mdt0(ostid_seq(oi))) {
 		name->name[LUSTRE_RES_ID_SEQ_OFF] = ostid_id(oi);
 		name->name[LUSTRE_RES_ID_VER_OID_OFF] = ostid_seq(oi);
diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h
index a6122559d55d..4fd4af9f29c9 100644
--- a/drivers/staging/lustre/lustre/include/obd.h
+++ b/drivers/staging/lustre/lustre/include/obd.h
@@ -177,7 +177,7 @@ static inline int lov_stripe_md_cmp(struct lov_stripe_md *m1,
 	 * ->lsm_wire contains padding, but it should be zeroed out during
 	 * allocation.
 	 */
-	return memcmp(&m1->lsm_wire, &m2->lsm_wire, sizeof m1->lsm_wire);
+	return memcmp(&m1->lsm_wire, &m2->lsm_wire, sizeof(m1->lsm_wire));
 }
 
 static inline int lov_lum_lsm_cmp(struct lov_user_md *lum,
diff --git a/drivers/staging/lustre/lustre/include/obd_support.h b/drivers/staging/lustre/lustre/include/obd_support.h
index 03e6133ef50f..9697e7faff2f 100644
--- a/drivers/staging/lustre/lustre/include/obd_support.h
+++ b/drivers/staging/lustre/lustre/include/obd_support.h
@@ -633,8 +633,8 @@ do {									      \
 
 #define OBD_ALLOC(ptr, size) OBD_ALLOC_GFP(ptr, size, __GFP_IO)
 #define OBD_ALLOC_WAIT(ptr, size) OBD_ALLOC_GFP(ptr, size, GFP_IOFS)
-#define OBD_ALLOC_PTR(ptr) OBD_ALLOC(ptr, sizeof *(ptr))
-#define OBD_ALLOC_PTR_WAIT(ptr) OBD_ALLOC_WAIT(ptr, sizeof *(ptr))
+#define OBD_ALLOC_PTR(ptr) OBD_ALLOC(ptr, sizeof(*(ptr)))
+#define OBD_ALLOC_PTR_WAIT(ptr) OBD_ALLOC_WAIT(ptr, sizeof(*(ptr)))
 
 #define OBD_CPT_ALLOC_GFP(ptr, cptab, cpt, size, gfp_mask)		      \
 	__OBD_MALLOC_VERBOSE(ptr, cptab, cpt, size, gfp_mask)
@@ -643,7 +643,7 @@ do {									      \
 	OBD_CPT_ALLOC_GFP(ptr, cptab, cpt, size, __GFP_IO)
 
 #define OBD_CPT_ALLOC_PTR(ptr, cptab, cpt)				      \
-	OBD_CPT_ALLOC(ptr, cptab, cpt, sizeof *(ptr))
+	OBD_CPT_ALLOC(ptr, cptab, cpt, sizeof(*(ptr)))
 
 # define __OBD_VMALLOC_VEROBSE(ptr, cptab, cpt, size)			      \
 do {									      \
@@ -773,7 +773,7 @@ do {									      \
 #define OBD_SLAB_CPT_ALLOC_GFP(ptr, slab, cptab, cpt, size, flags)	      \
 	__OBD_SLAB_ALLOC_VERBOSE(ptr, slab, cptab, cpt, size, flags)
 
-#define OBD_FREE_PTR(ptr) OBD_FREE(ptr, sizeof *(ptr))
+#define OBD_FREE_PTR(ptr) OBD_FREE(ptr, sizeof(*(ptr)))
 
 #define OBD_SLAB_FREE(ptr, slab, size)					\
 do {									  \
@@ -789,19 +789,19 @@ do {									  \
 	OBD_SLAB_CPT_ALLOC_GFP(ptr, slab, cptab, cpt, size, __GFP_IO)
 
 #define OBD_SLAB_ALLOC_PTR(ptr, slab)					      \
-	OBD_SLAB_ALLOC(ptr, slab, sizeof *(ptr))
+	OBD_SLAB_ALLOC(ptr, slab, sizeof(*(ptr)))
 
 #define OBD_SLAB_CPT_ALLOC_PTR(ptr, slab, cptab, cpt)			      \
-	OBD_SLAB_CPT_ALLOC(ptr, slab, cptab, cpt, sizeof *(ptr))
+	OBD_SLAB_CPT_ALLOC(ptr, slab, cptab, cpt, sizeof(*(ptr)))
 
 #define OBD_SLAB_ALLOC_PTR_GFP(ptr, slab, flags)			      \
-	OBD_SLAB_ALLOC_GFP(ptr, slab, sizeof *(ptr), flags)
+	OBD_SLAB_ALLOC_GFP(ptr, slab, sizeof(*(ptr)), flags)
 
 #define OBD_SLAB_CPT_ALLOC_PTR_GFP(ptr, slab, cptab, cpt, flags)		      \
-	OBD_SLAB_CPT_ALLOC_GFP(ptr, slab, cptab, cpt, sizeof *(ptr), flags)
+	OBD_SLAB_CPT_ALLOC_GFP(ptr, slab, cptab, cpt, sizeof(*(ptr)), flags)
 
 #define OBD_SLAB_FREE_PTR(ptr, slab)					      \
-	OBD_SLAB_FREE((ptr), (slab), sizeof *(ptr))
+	OBD_SLAB_FREE((ptr), (slab), sizeof(*(ptr)))
 
 #define KEY_IS(str) \
 	(keylen >= (sizeof(str)-1) && memcmp(key, str, (sizeof(str)-1)) == 0)
diff --git a/drivers/staging/lustre/lustre/lclient/lcommon_cl.c b/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
index 8ff38c64b7a1..e60c04d5393a 100644
--- a/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
+++ b/drivers/staging/lustre/lustre/lclient/lcommon_cl.c
@@ -701,7 +701,7 @@ int ccc_io_one_lock_index(const struct lu_env *env, struct cl_io *io,
 
 	CDEBUG(D_VFSTRACE, "lock: %d [%lu, %lu]\n", mode, start, end);
 
-	memset(&cio->cui_link, 0, sizeof cio->cui_link);
+	memset(&cio->cui_link, 0, sizeof(cio->cui_link));
 
 	if (cio->cui_fd && (cio->cui_fd->fd_flags & LL_FILE_GROUP_LOCKED)) {
 		descr->cld_mode = CLM_GROUP;
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
index 6133b3f34718..027617f5083f 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
@@ -529,7 +529,7 @@ int ldlm_lock_change_resource(struct ldlm_namespace *ns, struct ldlm_lock *lock,
 		lock_res_nested(oldres, LRT_NEW);
 	}
 	LASSERT(memcmp(new_resid, &oldres->lr_name,
-		       sizeof oldres->lr_name) != 0);
+		       sizeof(oldres->lr_name)) != 0);
 	lock->l_resource = newres;
 	unlock_res(oldres);
 	unlock_res_and_lock(lock);
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
index 208751a154b3..8d3dd6dad9b7 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
@@ -1115,7 +1115,7 @@ ldlm_resource_get(struct ldlm_namespace *ns, struct ldlm_resource *parent,
 		lu_ref_fini(&res->lr_reference);
 		/* We have taken lr_lvb_mutex. Drop it. */
 		mutex_unlock(&res->lr_lvb_mutex);
-		OBD_SLAB_FREE(res, ldlm_resource_slab, sizeof *res);
+		OBD_SLAB_FREE(res, ldlm_resource_slab, sizeof(*res));
 
 		res = hlist_entry(hnode, struct ldlm_resource, lr_hash);
 		/* Synchronize with regard to resource creation. */
@@ -1226,7 +1226,7 @@ int ldlm_resource_putref(struct ldlm_resource *res)
 		cfs_hash_bd_unlock(ns->ns_rs_hash, &bd, 1);
 		if (ns->ns_lvbo && ns->ns_lvbo->lvbo_free)
 			ns->ns_lvbo->lvbo_free(res);
-		OBD_SLAB_FREE(res, ldlm_resource_slab, sizeof *res);
+		OBD_SLAB_FREE(res, ldlm_resource_slab, sizeof(*res));
 		return 1;
 	}
 	return 0;
@@ -1256,7 +1256,7 @@ int ldlm_resource_putref_locked(struct ldlm_resource *res)
 		 */
 		if (ns->ns_lvbo && ns->ns_lvbo->lvbo_free)
 			ns->ns_lvbo->lvbo_free(res);
-		OBD_SLAB_FREE(res, ldlm_resource_slab, sizeof *res);
+		OBD_SLAB_FREE(res, ldlm_resource_slab, sizeof(*res));
 
 		cfs_hash_bd_lock(ns->ns_rs_hash, &bd, 1);
 		return 1;
diff --git a/drivers/staging/lustre/lustre/libcfs/linux/linux-debug.c b/drivers/staging/lustre/lustre/libcfs/linux/linux-debug.c
index ab1e73168472..cc565b1fb994 100644
--- a/drivers/staging/lustre/lustre/libcfs/linux/linux-debug.c
+++ b/drivers/staging/lustre/lustre/libcfs/linux/linux-debug.c
@@ -137,7 +137,7 @@ void libcfs_run_lbug_upcall(struct libcfs_debug_msg_data *msgdata)
 	char *argv[6];
 	char buf[32];
 
-	snprintf (buf, sizeof buf, "%d", msgdata->msg_line);
+	snprintf(buf, sizeof(buf), "%d", msgdata->msg_line);
 
 	argv[1] = "LBUG";
 	argv[2] = (char *)msgdata->msg_file;
diff --git a/drivers/staging/lustre/lustre/llite/file.c b/drivers/staging/lustre/lustre/llite/file.c
index 8c4b4fa0d59b..fb85a58db058 100644
--- a/drivers/staging/lustre/lustre/llite/file.c
+++ b/drivers/staging/lustre/lustre/llite/file.c
@@ -3011,7 +3011,7 @@ static int ll_layout_lock_set(struct lustre_handle *lockh, ldlm_mode_t mode,
 
 	/* set layout to file. Unlikely this will fail as old layout was
 	 * surely eliminated */
-	memset(&conf, 0, sizeof conf);
+	memset(&conf, 0, sizeof(conf));
 	conf.coc_opc = OBJECT_CONF_SET;
 	conf.coc_inode = inode;
 	conf.coc_lock = lock;
@@ -3034,7 +3034,7 @@ out:
 			ll_get_fsname(inode->i_sb, NULL, 0),
 			inode, PFID(&lli->lli_fid));
 
-		memset(&conf, 0, sizeof conf);
+		memset(&conf, 0, sizeof(conf));
 		conf.coc_opc = OBJECT_CONF_WAIT;
 		conf.coc_inode = inode;
 		rc = ll_layout_conf(inode, &conf);
diff --git a/drivers/staging/lustre/lustre/llite/llite_lib.c b/drivers/staging/lustre/lustre/llite/llite_lib.c
index b868c2bd58d2..fd584ff7e2df 100644
--- a/drivers/staging/lustre/lustre/llite/llite_lib.c
+++ b/drivers/staging/lustre/lustre/llite/llite_lib.c
@@ -1973,10 +1973,10 @@ void ll_umount_begin(struct super_block *sb)
 	OBD_ALLOC_PTR(ioc_data);
 	if (ioc_data) {
 		obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_md_exp,
-			      sizeof *ioc_data, ioc_data, NULL);
+			      sizeof(*ioc_data), ioc_data, NULL);
 
 		obd_iocontrol(IOC_OSC_SET_ACTIVE, sbi->ll_dt_exp,
-			      sizeof *ioc_data, ioc_data, NULL);
+			      sizeof(*ioc_data), ioc_data, NULL);
 
 		OBD_FREE_PTR(ioc_data);
 	}
diff --git a/drivers/staging/lustre/lustre/llite/rw.c b/drivers/staging/lustre/lustre/llite/rw.c
index ae0dc441d1d9..e9ba38a553cf 100644
--- a/drivers/staging/lustre/lustre/llite/rw.c
+++ b/drivers/staging/lustre/lustre/llite/rw.c
@@ -717,7 +717,7 @@ int ll_readahead(const struct lu_env *env, struct cl_io *io,
 	lli = ll_i2info(inode);
 	clob = lli->lli_clob;
 
-	memset(ria, 0, sizeof *ria);
+	memset(ria, 0, sizeof(*ria));
 
 	cl_object_attr_lock(clob);
 	ret = cl_object_attr_get(env, clob, attr);
diff --git a/drivers/staging/lustre/lustre/lov/lov_dev.c b/drivers/staging/lustre/lustre/lov/lov_dev.c
index a4006ef46ad2..099cebb05e44 100644
--- a/drivers/staging/lustre/lustre/lov/lov_dev.c
+++ b/drivers/staging/lustre/lustre/lov/lov_dev.c
@@ -286,7 +286,7 @@ static void lov_emerg_free(struct lov_device_emerg **emrg, int nr)
 			OBD_FREE_PTR(em);
 		}
 	}
-	OBD_FREE(emrg, nr * sizeof emrg[0]);
+	OBD_FREE(emrg, nr * sizeof(emrg[0]));
 }
 
 static struct lu_device *lov_device_free(const struct lu_env *env,
@@ -297,7 +297,7 @@ static struct lu_device *lov_device_free(const struct lu_env *env,
 
 	cl_device_fini(lu2cl_dev(d));
 	if (ld->ld_target != NULL)
-		OBD_FREE(ld->ld_target, nr * sizeof ld->ld_target[0]);
+		OBD_FREE(ld->ld_target, nr * sizeof(ld->ld_target[0]));
 	if (ld->ld_emrg != NULL)
 		lov_emerg_free(ld->ld_emrg, nr);
 	OBD_FREE_PTR(ld);
@@ -321,7 +321,7 @@ static struct lov_device_emerg **lov_emerg_alloc(int nr)
 	int i;
 	int result;
 
-	OBD_ALLOC(emerg, nr * sizeof emerg[0]);
+	OBD_ALLOC(emerg, nr * sizeof(emerg[0]));
 	if (emerg == NULL)
 		return ERR_PTR(-ENOMEM);
 	for (result = i = 0; i < nr && result == 0; i++) {
@@ -361,7 +361,7 @@ static int lov_expand_targets(const struct lu_env *env, struct lov_device *dev)
 	if (sub_size < tgt_size) {
 		struct lovsub_device    **newd;
 		struct lov_device_emerg **emerg;
-		const size_t	      sz   = sizeof newd[0];
+		const size_t	      sz   = sizeof(newd[0]);
 
 		emerg = lov_emerg_alloc(tgt_size);
 		if (IS_ERR(emerg))
diff --git a/drivers/staging/lustre/lustre/lov/lov_internal.h b/drivers/staging/lustre/lustre/lov/lov_internal.h
index 16770d14ee04..9870d360a15a 100644
--- a/drivers/staging/lustre/lustre/lov/lov_internal.h
+++ b/drivers/staging/lustre/lustre/lov/lov_internal.h
@@ -124,7 +124,7 @@ static inline void lov_llh_put(struct lov_lock_handles *llh)
 		if (atomic_read(&llh->llh_refcount))
 			return;
 
-		OBD_FREE_RCU(llh, sizeof *llh +
+		OBD_FREE_RCU(llh, sizeof(*llh) +
 			     sizeof(*llh->llh_handles) * llh->llh_stripe_count,
 			     &llh->llh_handle);
 	}
diff --git a/drivers/staging/lustre/lustre/lov/lov_io.c b/drivers/staging/lustre/lustre/lov/lov_io.c
index b611aa4e9dcb..5be0e2c243b0 100644
--- a/drivers/staging/lustre/lustre/lov/lov_io.c
+++ b/drivers/staging/lustre/lustre/lov/lov_io.c
@@ -282,7 +282,7 @@ static int lov_io_subio_init(const struct lu_env *env, struct lov_io *lio,
 	 * when writing a page. -jay
 	 */
 	OBD_ALLOC_LARGE(lio->lis_subs,
-			lsm->lsm_stripe_count * sizeof lio->lis_subs[0]);
+			lsm->lsm_stripe_count * sizeof(lio->lis_subs[0]));
 	if (lio->lis_subs != NULL) {
 		lio->lis_nr_subios = lio->lis_stripe_count;
 		lio->lis_single_subio_index = -1;
@@ -356,7 +356,7 @@ static void lov_io_fini(const struct lu_env *env, const struct cl_io_slice *ios)
 		for (i = 0; i < lio->lis_nr_subios; i++)
 			lov_io_sub_fini(env, lio, &lio->lis_subs[i]);
 		OBD_FREE_LARGE(lio->lis_subs,
-			 lio->lis_nr_subios * sizeof lio->lis_subs[0]);
+			 lio->lis_nr_subios * sizeof(lio->lis_subs[0]));
 		lio->lis_nr_subios = 0;
 	}
 
diff --git a/drivers/staging/lustre/lustre/lov/lov_lock.c b/drivers/staging/lustre/lustre/lov/lov_lock.c
index ec297e87c2a2..7682aeb3fa6a 100644
--- a/drivers/staging/lustre/lustre/lov/lov_lock.c
+++ b/drivers/staging/lustre/lustre/lov/lov_lock.c
@@ -313,7 +313,7 @@ static int lov_lock_sub_init(const struct lu_env *env,
 			nr++;
 	}
 	LASSERT(nr > 0);
-	OBD_ALLOC_LARGE(lck->lls_sub, nr * sizeof lck->lls_sub[0]);
+	OBD_ALLOC_LARGE(lck->lls_sub, nr * sizeof(lck->lls_sub[0]));
 	if (lck->lls_sub == NULL)
 		return -ENOMEM;
 
@@ -474,7 +474,7 @@ static void lov_lock_fini(const struct lu_env *env,
 			 */
 			LASSERT(lck->lls_sub[i].sub_lock == NULL);
 		OBD_FREE_LARGE(lck->lls_sub,
-			       lck->lls_nr * sizeof lck->lls_sub[0]);
+			       lck->lls_nr * sizeof(lck->lls_sub[0]));
 	}
 	OBD_SLAB_FREE_PTR(lck, lov_lock_kmem);
 }
diff --git a/drivers/staging/lustre/lustre/lov/lov_object.c b/drivers/staging/lustre/lustre/lov/lov_object.c
index 84e55ce3ccd2..cf2fa8abfb1d 100644
--- a/drivers/staging/lustre/lustre/lov/lov_object.c
+++ b/drivers/staging/lustre/lustre/lov/lov_object.c
@@ -214,7 +214,7 @@ static int lov_init_raid0(const struct lu_env *env,
 	r0->lo_nr  = lsm->lsm_stripe_count;
 	LASSERT(r0->lo_nr <= lov_targets_nr(dev));
 
-	OBD_ALLOC_LARGE(r0->lo_sub, r0->lo_nr * sizeof r0->lo_sub[0]);
+	OBD_ALLOC_LARGE(r0->lo_sub, r0->lo_nr * sizeof(r0->lo_sub[0]));
 	if (r0->lo_sub != NULL) {
 		result = 0;
 		subconf->coc_inode = conf->coc_inode;
@@ -368,7 +368,7 @@ static void lov_fini_raid0(const struct lu_env *env, struct lov_object *lov,
 	struct lov_layout_raid0 *r0 = &state->raid0;
 
 	if (r0->lo_sub != NULL) {
-		OBD_FREE_LARGE(r0->lo_sub, r0->lo_nr * sizeof r0->lo_sub[0]);
+		OBD_FREE_LARGE(r0->lo_sub, r0->lo_nr * sizeof(r0->lo_sub[0]));
 		r0->lo_sub = NULL;
 	}
 
diff --git a/drivers/staging/lustre/lustre/lov/lov_pack.c b/drivers/staging/lustre/lustre/lov/lov_pack.c
index 55ec26778f80..2f80833f164a 100644
--- a/drivers/staging/lustre/lustre/lov/lov_pack.c
+++ b/drivers/staging/lustre/lustre/lov/lov_pack.c
@@ -630,7 +630,7 @@ int lov_getstripe(struct obd_export *exp, struct lov_stripe_md *lsm,
 	/* FIXME: Bug 1185 - copy fields properly when structs change */
 	/* struct lov_user_md_v3 and struct lov_mds_md_v3 must be the same */
 	CLASSERT(sizeof(lum) == sizeof(struct lov_mds_md_v3));
-	CLASSERT(sizeof lum.lmm_objects[0] == sizeof lmmk->lmm_objects[0]);
+	CLASSERT(sizeof(lum.lmm_objects[0]) == sizeof(lmmk->lmm_objects[0]));
 
 	if ((cpu_to_le32(LOV_MAGIC) != LOV_MAGIC) &&
 	    ((lmmk->lmm_magic == cpu_to_le32(LOV_MAGIC_V1)) ||
diff --git a/drivers/staging/lustre/lustre/lov/lov_request.c b/drivers/staging/lustre/lustre/lov/lov_request.c
index 61e6d0b46c98..f80e62646683 100644
--- a/drivers/staging/lustre/lustre/lov/lov_request.c
+++ b/drivers/staging/lustre/lustre/lov/lov_request.c
@@ -245,7 +245,7 @@ int lov_update_enqueue_set(struct lov_request *req, __u32 mode, int rc)
 	osc_update_enqueue(lov_lockhp, loi, oi->oi_flags,
 			   &req->rq_oi.oi_md->lsm_oinfo[0]->loi_lvb, mode, rc);
 	if (rc == ELDLM_LOCK_ABORTED && (oi->oi_flags & LDLM_FL_HAS_INTENT))
-		memset(lov_lockhp, 0, sizeof *lov_lockhp);
+		memset(lov_lockhp, 0, sizeof(*lov_lockhp));
 	rc = lov_update_enqueue_lov(set->set_exp, lov_lockhp, loi, oi->oi_flags,
 				    req->rq_idx, &oi->oi_md->lsm_oi, rc);
 	lov_stripe_unlock(oi->oi_md);
@@ -343,7 +343,7 @@ static struct lov_lock_handles *lov_llh_new(struct lov_stripe_md *lsm)
 {
 	struct lov_lock_handles *llh;
 
-	OBD_ALLOC(llh, sizeof *llh +
+	OBD_ALLOC(llh, sizeof(*llh) +
 		  sizeof(*llh->llh_handles) * lsm->lsm_stripe_count);
 	if (llh == NULL)
 		return NULL;
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_io.c b/drivers/staging/lustre/lustre/obdclass/cl_io.c
index 426979341554..e048500edd60 100644
--- a/drivers/staging/lustre/lustre/obdclass/cl_io.c
+++ b/drivers/staging/lustre/lustre/obdclass/cl_io.c
@@ -1387,7 +1387,7 @@ static void cl_req_free(const struct lu_env *env, struct cl_req *req)
 				cl_object_put(env, obj);
 			}
 		}
-		OBD_FREE(req->crq_o, req->crq_nrobjs * sizeof req->crq_o[0]);
+		OBD_FREE(req->crq_o, req->crq_nrobjs * sizeof(req->crq_o[0]));
 	}
 	OBD_FREE_PTR(req);
 }
@@ -1452,7 +1452,7 @@ struct cl_req *cl_req_alloc(const struct lu_env *env, struct cl_page *page,
 	if (req != NULL) {
 		int result;
 
-		OBD_ALLOC(req->crq_o, nr_objects * sizeof req->crq_o[0]);
+		OBD_ALLOC(req->crq_o, nr_objects * sizeof(req->crq_o[0]));
 		if (req->crq_o != NULL) {
 			req->crq_nrobjs = nr_objects;
 			req->crq_type = crt;
@@ -1642,7 +1642,7 @@ int cl_sync_io_wait(const struct lu_env *env, struct cl_io *io,
 		cpu_relax();
 	}
 
-	POISON(anchor, 0x5a, sizeof *anchor);
+	POISON(anchor, 0x5a, sizeof(*anchor));
 	return rc;
 }
 EXPORT_SYMBOL(cl_sync_io_wait);
diff --git a/drivers/staging/lustre/lustre/obdclass/class_obd.c b/drivers/staging/lustre/lustre/obdclass/class_obd.c
index b1024a6d37dd..4afd962cdb64 100644
--- a/drivers/staging/lustre/lustre/obdclass/class_obd.c
+++ b/drivers/staging/lustre/lustre/obdclass/class_obd.c
@@ -178,7 +178,7 @@ EXPORT_SYMBOL(obd_alloc_fail);
 static inline void obd_data2conn(struct lustre_handle *conn,
 				 struct obd_ioctl_data *data)
 {
-	memset(conn, 0, sizeof *conn);
+	memset(conn, 0, sizeof(*conn));
 	conn->cookie = data->ioc_cookie;
 }
 
diff --git a/drivers/staging/lustre/lustre/obdclass/llog_test.c b/drivers/staging/lustre/lustre/obdclass/llog_test.c
index d9e6d12215f9..178f89eccab1 100644
--- a/drivers/staging/lustre/lustre/obdclass/llog_test.c
+++ b/drivers/staging/lustre/lustre/obdclass/llog_test.c
@@ -242,7 +242,7 @@ static int llog_test_3(const struct lu_env *env, struct obd_device *obd,
 
 		hdr.lrh_len = 8;
 		hdr.lrh_type = OBD_CFG_REC;
-		memset(buf, 0, sizeof buf);
+		memset(buf, 0, sizeof(buf));
 		rc = llog_write(env, llh, &hdr, NULL, 0, buf, -1);
 		if (rc < 0) {
 			CERROR("3b: write 10 records failed at #%d: %d\n",
@@ -277,8 +277,8 @@ static int llog_test_3(const struct lu_env *env, struct obd_device *obd,
 		char			buf_even[24];
 		char			buf_odd[32];
 
-		memset(buf_odd, 0, sizeof buf_odd);
-		memset(buf_even, 0, sizeof buf_even);
+		memset(buf_odd, 0, sizeof(buf_odd));
+		memset(buf_even, 0, sizeof(buf_even));
 		if ((i % 2) == 0) {
 			hdr.lrh_len = 24;
 			hdr.lrh_type = OBD_CFG_REC;
diff --git a/drivers/staging/lustre/lustre/obdclass/lu_object.c b/drivers/staging/lustre/lustre/obdclass/lu_object.c
index 3a3d5bc5a628..e8f260781c0e 100644
--- a/drivers/staging/lustre/lustre/obdclass/lu_object.c
+++ b/drivers/staging/lustre/lustre/obdclass/lu_object.c
@@ -980,7 +980,7 @@ int lu_site_init(struct lu_site *s, struct lu_device *top)
 	int bits;
 	int i;
 
-	memset(s, 0, sizeof *s);
+	memset(s, 0, sizeof(*s));
 	bits = lu_htable_order();
 	snprintf(name, 16, "lu_site_%s", top->ld_type->ldt_name);
 	for (bits = min(max(LU_SITE_BITS_MIN, bits), LU_SITE_BITS_MAX);
@@ -1110,7 +1110,7 @@ int lu_device_init(struct lu_device *d, struct lu_device_type *t)
 {
 	if (t->ldt_device_nr++ == 0 && t->ldt_ops->ldto_start != NULL)
 		t->ldt_ops->ldto_start(t);
-	memset(d, 0, sizeof *d);
+	memset(d, 0, sizeof(*d));
 	atomic_set(&d->ld_ref, 0);
 	d->ld_type = t;
 	lu_ref_init(&d->ld_reference);
@@ -1206,7 +1206,7 @@ EXPORT_SYMBOL(lu_object_add);
  */
 int lu_object_header_init(struct lu_object_header *h)
 {
-	memset(h, 0, sizeof *h);
+	memset(h, 0, sizeof(*h));
 	atomic_set(&h->loh_ref, 1);
 	INIT_HLIST_NODE(&h->loh_hash);
 	INIT_LIST_HEAD(&h->loh_lru);
@@ -1525,7 +1525,7 @@ static void keys_fini(struct lu_context *ctx)
 	for (i = 0; i < ARRAY_SIZE(lu_keys); ++i)
 		key_fini(ctx, i);
 
-	OBD_FREE(ctx->lc_value, ARRAY_SIZE(lu_keys) * sizeof ctx->lc_value[0]);
+	OBD_FREE(ctx->lc_value, ARRAY_SIZE(lu_keys) * sizeof(ctx->lc_value[0]));
 	ctx->lc_value = NULL;
 }
 
@@ -1574,7 +1574,8 @@ static int keys_fill(struct lu_context *ctx)
 
 static int keys_init(struct lu_context *ctx)
 {
-	OBD_ALLOC(ctx->lc_value, ARRAY_SIZE(lu_keys) * sizeof ctx->lc_value[0]);
+	OBD_ALLOC(ctx->lc_value,
+		  ARRAY_SIZE(lu_keys) * sizeof(ctx->lc_value[0]));
 	if (likely(ctx->lc_value != NULL))
 		return keys_fill(ctx);
 
@@ -1588,7 +1589,7 @@ int lu_context_init(struct lu_context *ctx, __u32 tags)
 {
 	int	rc;
 
-	memset(ctx, 0, sizeof *ctx);
+	memset(ctx, 0, sizeof(*ctx));
 	ctx->lc_state = LCS_INITIALIZED;
 	ctx->lc_tags = tags;
 	if (tags & LCT_REMEMBER) {
diff --git a/drivers/staging/lustre/lustre/obdclass/obd_config.c b/drivers/staging/lustre/lustre/obdclass/obd_config.c
index d0a64ff53581..73e2571f463f 100644
--- a/drivers/staging/lustre/lustre/obdclass/obd_config.c
+++ b/drivers/staging/lustre/lustre/obdclass/obd_config.c
@@ -417,7 +417,7 @@ int class_attach(struct lustre_cfg *lcfg)
 
 	/* do the attach */
 	if (OBP(obd, attach)) {
-		rc = OBP(obd,attach)(obd, sizeof *lcfg, lcfg);
+		rc = OBP(obd, attach)(obd, sizeof(*lcfg), lcfg);
 		if (rc)
 			GOTO(out, rc = -EINVAL);
 	}
@@ -900,7 +900,7 @@ void class_del_profile(const char *prof)
 		OBD_FREE(lprof->lp_dt, strlen(lprof->lp_dt) + 1);
 		if (lprof->lp_md)
 			OBD_FREE(lprof->lp_md, strlen(lprof->lp_md) + 1);
-		OBD_FREE(lprof, sizeof *lprof);
+		OBD_FREE(lprof, sizeof(*lprof));
 	}
 }
 EXPORT_SYMBOL(class_del_profile);
@@ -916,7 +916,7 @@ void class_del_profiles(void)
 		OBD_FREE(lprof->lp_dt, strlen(lprof->lp_dt) + 1);
 		if (lprof->lp_md)
 			OBD_FREE(lprof->lp_md, strlen(lprof->lp_md) + 1);
-		OBD_FREE(lprof, sizeof *lprof);
+		OBD_FREE(lprof, sizeof(*lprof));
 	}
 }
 EXPORT_SYMBOL(class_del_profiles);
diff --git a/drivers/staging/lustre/lustre/obdclass/uuid.c b/drivers/staging/lustre/lustre/obdclass/uuid.c
index af5f27f82bc5..e87a19900770 100644
--- a/drivers/staging/lustre/lustre/obdclass/uuid.c
+++ b/drivers/staging/lustre/lustre/obdclass/uuid.c
@@ -48,7 +48,7 @@ static inline __u32 consume(int nob, __u8 **ptr)
 {
 	__u32 value;
 
-	LASSERT(nob <= sizeof value);
+	LASSERT(nob <= sizeof(value));
 
 	for (value = 0; nob > 0; --nob)
 		value = (value << 8) | *((*ptr)++);
@@ -61,7 +61,7 @@ static void uuid_unpack(class_uuid_t in, __u16 *uu, int nr)
 {
 	__u8 *ptr = in;
 
-	LASSERT(nr * sizeof *uu == sizeof(class_uuid_t));
+	LASSERT(nr * sizeof(*uu) == sizeof(class_uuid_t));
 
 	while (nr-- > 0)
 		CONSUME(uu[nr], &ptr);
diff --git a/drivers/staging/lustre/lustre/obdecho/echo_client.c b/drivers/staging/lustre/lustre/obdecho/echo_client.c
index c8b43442dc74..1fb0ac4e920d 100644
--- a/drivers/staging/lustre/lustre/obdecho/echo_client.c
+++ b/drivers/staging/lustre/lustre/obdecho/echo_client.c
@@ -1089,7 +1089,7 @@ static struct echo_object *cl_echo_object_find(struct echo_device *d,
 		} else {
 			struct lustre_md *md;
 			md = &info->eti_md;
-			memset(md, 0, sizeof *md);
+			memset(md, 0, sizeof(*md));
 			md->lsm = lsm;
 			conf->eoc_cl.u.coc_md = md;
 		}
diff --git a/drivers/staging/lustre/lustre/osc/osc_lock.c b/drivers/staging/lustre/lustre/osc/osc_lock.c
index 5d7bdbfc871a..c90abfbb1d7a 100644
--- a/drivers/staging/lustre/lustre/osc/osc_lock.c
+++ b/drivers/staging/lustre/lustre/osc/osc_lock.c
@@ -862,7 +862,7 @@ static int osc_ldlm_glimpse_ast(struct ldlm_lock *dlmlock, void *data)
 			cap = &req->rq_pill;
 			req_capsule_extend(cap, &RQF_LDLM_GL_CALLBACK);
 			req_capsule_set_size(cap, &RMF_DLM_LVB, RCL_SERVER,
-					     sizeof *lvb);
+					     sizeof(*lvb));
 			result = req_capsule_server_pack(cap);
 			if (result == 0) {
 				lvb = req_capsule_server_get(cap, &RMF_DLM_LVB);
diff --git a/drivers/staging/lustre/lustre/osc/osc_page.c b/drivers/staging/lustre/lustre/osc/osc_page.c
index d272322b29b6..6c20b8ecfb82 100644
--- a/drivers/staging/lustre/lustre/osc/osc_page.c
+++ b/drivers/staging/lustre/lustre/osc/osc_page.c
@@ -245,7 +245,7 @@ static int osc_page_cache_add(const struct lu_env *env,
 void osc_index2policy(ldlm_policy_data_t *policy, const struct cl_object *obj,
 		      pgoff_t start, pgoff_t end)
 {
-	memset(policy, 0, sizeof *policy);
+	memset(policy, 0, sizeof(*policy));
 	policy->l_extent.start = cl_offset(obj, start);
 	policy->l_extent.end   = cl_offset(obj, end + 1) - 1;
 }
diff --git a/drivers/staging/lustre/lustre/osc/osc_request.c b/drivers/staging/lustre/lustre/osc/osc_request.c
index ee6707a5ea9d..cb197782d9a3 100644
--- a/drivers/staging/lustre/lustre/osc/osc_request.c
+++ b/drivers/staging/lustre/lustre/osc/osc_request.c
@@ -2554,7 +2554,7 @@ int osc_enqueue_base(struct obd_export *exp, struct ldlm_res_id *res_id,
 		}
 
 		req_capsule_set_size(&req->rq_pill, &RMF_DLM_LVB, RCL_SERVER,
-				     sizeof *lvb);
+				     sizeof(*lvb));
 		ptlrpc_request_set_replen(req);
 	}
 
diff --git a/drivers/staging/lustre/lustre/ptlrpc/client.c b/drivers/staging/lustre/lustre/ptlrpc/client.c
index 810a458caed7..c2ab0c8c4d42 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/client.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/client.c
@@ -817,7 +817,7 @@ struct ptlrpc_request_set *ptlrpc_prep_set(void)
 {
 	struct ptlrpc_request_set *set;
 
-	OBD_ALLOC(set, sizeof *set);
+	OBD_ALLOC(set, sizeof(*set));
 	if (!set)
 		return NULL;
 	atomic_set(&set->set_refcount, 1);
@@ -2690,7 +2690,7 @@ int ptlrpc_replay_req(struct ptlrpc_request *req)
 
 	LASSERT (sizeof (*aa) <= sizeof (req->rq_async_args));
 	aa = ptlrpc_req_async_args(req);
-	memset(aa, 0, sizeof *aa);
+	memset(aa, 0, sizeof(*aa));
 
 	/* Prepare request to be resent with ptlrpcd */
 	aa->praa_old_state = req->rq_send_state;
diff --git a/drivers/staging/lustre/lustre/ptlrpc/import.c b/drivers/staging/lustre/lustre/ptlrpc/import.c
index 5ca69aec72e1..7b96a0e88cdb 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/import.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/import.c
@@ -682,7 +682,7 @@ int ptlrpc_connect_import(struct obd_import *imp)
 
 	CLASSERT(sizeof (*aa) <= sizeof (request->rq_async_args));
 	aa = ptlrpc_req_async_args(request);
-	memset(aa, 0, sizeof *aa);
+	memset(aa, 0, sizeof(*aa));
 
 	aa->pcaa_peer_committed = committed_before_reconnect;
 	aa->pcaa_initial_connect = initial_connect;
diff --git a/drivers/staging/lustre/lustre/ptlrpc/layout.c b/drivers/staging/lustre/lustre/ptlrpc/layout.c
index 2f55ce26ccba..d0a6e5689227 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/layout.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/layout.c
@@ -1669,7 +1669,7 @@ void req_capsule_init(struct req_capsule *pill,
 	if (req != NULL && pill == &req->rq_pill && req->rq_pill_init)
 		return;
 
-	memset(pill, 0, sizeof *pill);
+	memset(pill, 0, sizeof(*pill));
 	pill->rc_req = req;
 	pill->rc_loc = location;
 	req_capsule_init_area(pill);
diff --git a/drivers/staging/lustre/lustre/ptlrpc/service.c b/drivers/staging/lustre/lustre/ptlrpc/service.c
index acf75f3873d1..21de868da522 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/service.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/service.c
@@ -263,7 +263,7 @@ static struct ptlrpc_hr_service		ptlrpc_hr;
  */
 static void rs_batch_init(struct rs_batch *b)
 {
-	memset(b, 0, sizeof *b);
+	memset(b, 0, sizeof(*b));
 	INIT_LIST_HEAD(&b->rsb_replies);
 }
 
@@ -1306,12 +1306,12 @@ static int ptlrpc_at_send_early_reply(struct ptlrpc_request *req)
 	}
 	newdl = cfs_time_current_sec() + at_get(&svcpt->scp_at_estimate);
 
-	OBD_ALLOC(reqcopy, sizeof *reqcopy);
+	OBD_ALLOC(reqcopy, sizeof(*reqcopy));
 	if (reqcopy == NULL)
 		return -ENOMEM;
 	OBD_ALLOC_LARGE(reqmsg, req->rq_reqlen);
 	if (!reqmsg) {
-		OBD_FREE(reqcopy, sizeof *reqcopy);
+		OBD_FREE(reqcopy, sizeof(*reqcopy));
 		return -ENOMEM;
 	}
 
@@ -1370,7 +1370,7 @@ out_put:
 out:
 	sptlrpc_svc_ctx_decref(reqcopy);
 	OBD_FREE_LARGE(reqmsg, req->rq_reqlen);
-	OBD_FREE(reqcopy, sizeof *reqcopy);
+	OBD_FREE(reqcopy, sizeof(*reqcopy));
 	return rc;
 }
 
-- 
cgit 


From 9f1614aae59033b79941220f65ad36f5fe54a579 Mon Sep 17 00:00:00 2001
From: Markus Pargmann <mpa@pengutronix.de>
Date: Fri, 11 Oct 2013 12:11:02 +0200
Subject: ASoC: snd_soc_dai_ops trigger function description

Add a comment to the trigger function in snd_soc_dai_ops struct about
possible command sequences.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/sound/soc-dai.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index ae9a227d35d3..0f2e5daa1451 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -166,6 +166,13 @@ struct snd_soc_dai_ops {
 		struct snd_soc_dai *);
 	int (*prepare)(struct snd_pcm_substream *,
 		struct snd_soc_dai *);
+	/*
+	 * NOTE: Commands passed to the trigger function are not necessarily
+	 * compatible with the current state of the dai. For example this
+	 * sequence of commands is possible: START STOP STOP.
+	 * So do not unconditionally use refcounting functions in the trigger
+	 * function, e.g. clk_enable/disable.
+	 */
 	int (*trigger)(struct snd_pcm_substream *, int,
 		struct snd_soc_dai *);
 	int (*bespoke_trigger)(struct snd_pcm_substream *, int,
-- 
cgit 


From 88cf632a135188db35b4db412a06b155fa444eb1 Mon Sep 17 00:00:00 2001
From: Markus Pargmann <mpa@pengutronix.de>
Date: Fri, 11 Oct 2013 12:11:03 +0200
Subject: ASoC: mxs-saif: Store saif state

Trigger commands may be passed multiple times. To avoid errors with
clk_enable/disable, store the saif state and return if saif is already
running/stopped.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/mxs/mxs-saif.c | 8 ++++++++
 sound/soc/mxs/mxs-saif.h | 5 +++++
 2 files changed, 13 insertions(+)

diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index b56b8a0e8deb..c8ead011c95b 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -503,6 +503,9 @@ static int mxs_saif_trigger(struct snd_pcm_substream *substream, int cmd,
 	case SNDRV_PCM_TRIGGER_START:
 	case SNDRV_PCM_TRIGGER_RESUME:
 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		if (saif->state == MXS_SAIF_STATE_RUNNING)
+			return 0;
+
 		dev_dbg(cpu_dai->dev, "start\n");
 
 		clk_enable(master_saif->clk);
@@ -543,6 +546,7 @@ static int mxs_saif_trigger(struct snd_pcm_substream *substream, int cmd,
 		}
 
 		master_saif->ongoing = 1;
+		saif->state = MXS_SAIF_STATE_RUNNING;
 
 		dev_dbg(saif->dev, "CTRL 0x%x STAT 0x%x\n",
 			__raw_readl(saif->base + SAIF_CTRL),
@@ -555,6 +559,9 @@ static int mxs_saif_trigger(struct snd_pcm_substream *substream, int cmd,
 	case SNDRV_PCM_TRIGGER_SUSPEND:
 	case SNDRV_PCM_TRIGGER_STOP:
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		if (saif->state == MXS_SAIF_STATE_STOPPED)
+			return 0;
+
 		dev_dbg(cpu_dai->dev, "stop\n");
 
 		/* wait a while for the current sample to complete */
@@ -575,6 +582,7 @@ static int mxs_saif_trigger(struct snd_pcm_substream *substream, int cmd,
 		}
 
 		master_saif->ongoing = 0;
+		saif->state = MXS_SAIF_STATE_STOPPED;
 
 		break;
 	default:
diff --git a/sound/soc/mxs/mxs-saif.h b/sound/soc/mxs/mxs-saif.h
index 53eaa4bf0e27..fbaf7badfdfb 100644
--- a/sound/soc/mxs/mxs-saif.h
+++ b/sound/soc/mxs/mxs-saif.h
@@ -124,6 +124,11 @@ struct mxs_saif {
 
 	u32 fifo_underrun;
 	u32 fifo_overrun;
+
+	enum {
+		MXS_SAIF_STATE_STOPPED,
+		MXS_SAIF_STATE_RUNNING,
+	} state;
 };
 
 extern int mxs_saif_put_mclk(unsigned int saif_id);
-- 
cgit 


From 863ebddec85c5ce2fb2e7742e8834a3bd69a2512 Mon Sep 17 00:00:00 2001
From: Markus Pargmann <mpa@pengutronix.de>
Date: Fri, 11 Oct 2013 12:11:04 +0200
Subject: ASoC: mxs-saif: Handle errors in trigger function

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/mxs/mxs-saif.c | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index c8ead011c95b..fc3d89b75d48 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -494,6 +494,7 @@ static int mxs_saif_trigger(struct snd_pcm_substream *substream, int cmd,
 	struct mxs_saif *saif = snd_soc_dai_get_drvdata(cpu_dai);
 	struct mxs_saif *master_saif;
 	u32 delay;
+	int ret;
 
 	master_saif = mxs_saif_get_master(saif);
 	if (!master_saif)
@@ -508,21 +509,32 @@ static int mxs_saif_trigger(struct snd_pcm_substream *substream, int cmd,
 
 		dev_dbg(cpu_dai->dev, "start\n");
 
-		clk_enable(master_saif->clk);
-		if (!master_saif->mclk_in_use)
-			__raw_writel(BM_SAIF_CTRL_RUN,
-				master_saif->base + SAIF_CTRL + MXS_SET_ADDR);
+		ret = clk_enable(master_saif->clk);
+		if (ret) {
+			dev_err(saif->dev, "Failed to enable master clock\n");
+			return ret;
+		}
 
 		/*
 		 * If the saif's master is not himself, we also need to enable
 		 * itself clk for its internal basic logic to work.
 		 */
 		if (saif != master_saif) {
-			clk_enable(saif->clk);
+			ret = clk_enable(saif->clk);
+			if (ret) {
+				dev_err(saif->dev, "Failed to enable master clock\n");
+				clk_disable(master_saif->clk);
+				return ret;
+			}
+
 			__raw_writel(BM_SAIF_CTRL_RUN,
 				saif->base + SAIF_CTRL + MXS_SET_ADDR);
 		}
 
+		if (!master_saif->mclk_in_use)
+			__raw_writel(BM_SAIF_CTRL_RUN,
+				master_saif->base + SAIF_CTRL + MXS_SET_ADDR);
+
 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 			/*
 			 * write data to saif data register to trigger
-- 
cgit 


From d723a92dd465d549bf79dd481c09d59f0be02936 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Thu, 10 Oct 2013 18:03:55 +1100
Subject: sysfs/bin: Fix size handling overflow for bin_attribute

While looking at the code, I noticed that bin_attribute read() and write()
ops copy the inode size into an int for futher comparisons.

Some bin_attributes can be fairly large. For example, pci creates some for
BARs set to the BAR size and giant BARs are around the corner, so this is
going to break something somewhere eventually.

Let's use the right type.

[adjust for seqfile conversions, only needed for bin_read() - gkh]

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index c324ee906df0..5d818df7250b 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -156,7 +156,7 @@ static ssize_t sysfs_bin_read(struct file *file, char __user *userbuf,
 	struct sysfs_open_file *of = sysfs_of(file);
 	struct bin_attribute *battr = of->sd->s_bin_attr.bin_attr;
 	struct kobject *kobj = of->sd->s_parent->s_dir.kobj;
-	int size = file_inode(file)->i_size;
+	loff_t size = file_inode(file)->i_size;
 	int count = min_t(size_t, bytes, PAGE_SIZE);
 	loff_t offs = *off;
 	char *buf;
-- 
cgit 


From 3de80bfc1c9dc2b791e1f00671356279f2a9442b Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 14 Oct 2013 10:15:50 -0700
Subject: Revert "USB: OHCI: Properly handle ohci-spear suspend"

This reverts commit 36a8758736238c9354f46b39ca506e9acabe82d0.

Manjunath is no longer at Linaro, the email address bounces.  Given
that, and the fact that others have reported problems with these
patches, I'm reverting them until someone from Linaro who can SUPPORT
THEM submits them.

I will no longer accept patches from linaro.com developers unless a
senior Linaro developer has signed off on them, which did not happen
with this patch set.

Reported-by: Olof Johansson <olof@lixom.net>
Cc: Manjunath Goudar <manjunath.goudar@linaro.org>
Cc: Manjunath Goudar <csmanjuvijay@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
---
 drivers/usb/host/ohci-spear.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c
index 41148f8895a4..31ff3fc4e26f 100644
--- a/drivers/usb/host/ohci-spear.c
+++ b/drivers/usb/host/ohci-spear.c
@@ -130,26 +130,20 @@ static int spear_ohci_hcd_drv_remove(struct platform_device *pdev)
 }
 
 #if defined(CONFIG_PM)
-static int spear_ohci_hcd_drv_suspend(struct platform_device *pdev,
+static int spear_ohci_hcd_drv_suspend(struct platform_device *dev,
 		pm_message_t message)
 {
-	struct usb_hcd *hcd = platform_get_drvdata(pdev);
+	struct usb_hcd *hcd = platform_get_drvdata(dev);
 	struct ohci_hcd	*ohci = hcd_to_ohci(hcd);
 	struct spear_ohci *sohci_p = to_spear_ohci(hcd);
-	bool do_wakeup = device_may_wakeup(&pdev->dev);
-	int ret;
 
 	if (time_before(jiffies, ohci->next_statechange))
 		msleep(5);
 	ohci->next_statechange = jiffies;
 
-	ret = ohci_suspend(hcd, do_wakeup);
-	if (ret)
-		return ret;
-
 	clk_disable_unprepare(sohci_p->clk);
 
-	return ret;
+	return 0;
 }
 
 static int spear_ohci_hcd_drv_resume(struct platform_device *dev)
-- 
cgit 


From 066ba8e0617754f47b7bec068ebe6789f8c6cac6 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 14 Oct 2013 10:16:58 -0700
Subject: Revert "USB: OHCI: Properly handle ohci-exynos suspend"

This reverts commit fea0896fd36cff487685970bfc36ddd96352d95b.

Manjunath is no longer at Linaro, the email address bounces.  Given
that, and the fact that others have reported problems with these
patches, I'm reverting them until someone from Linaro who can SUPPORT
THEM submits them.

I will no longer accept patches from linaro.com developers unless a
senior Linaro developer has signed off on them, which did not happen
with this patch set.

Reported-by: Olof Johansson <olof@lixom.net>
Cc: Manjunath Goudar <manjunath.goudar@linaro.org>
Cc: Manjunath Goudar <csmanjuvijay@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
---
 drivers/usb/host/ohci-exynos.c | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c
index 122e52e88a40..17f46fbf047d 100644
--- a/drivers/usb/host/ohci-exynos.c
+++ b/drivers/usb/host/ohci-exynos.c
@@ -204,15 +204,24 @@ static int exynos_ohci_suspend(struct device *dev)
 	struct exynos_ohci_hcd *exynos_ohci = to_exynos_ohci(hcd);
 	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
 	struct platform_device *pdev = to_platform_device(dev);
-	bool do_wakeup = device_may_wakeup(dev);
 	unsigned long flags;
 	int rc = 0;
 
-	rc = ohci_suspend(hcd, do_wakeup);
-	if (rc)
-		return rc;
-
+	/*
+	 * Root hub was already suspended. Disable irq emission and
+	 * mark HW unaccessible, bail out if RH has been resumed. Use
+	 * the spinlock to properly synchronize with possible pending
+	 * RH suspend or resume activity.
+	 */
 	spin_lock_irqsave(&ohci->lock, flags);
+	if (ohci->rh_state != OHCI_RH_SUSPENDED &&
+			ohci->rh_state != OHCI_RH_HALTED) {
+		rc = -EINVAL;
+		goto fail;
+	}
+
+	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+
 	if (exynos_ohci->otg)
 		exynos_ohci->otg->set_host(exynos_ohci->otg, &hcd->self);
 
@@ -220,6 +229,7 @@ static int exynos_ohci_suspend(struct device *dev)
 
 	clk_disable_unprepare(exynos_ohci->clk);
 
+fail:
 	spin_unlock_irqrestore(&ohci->lock, flags);
 
 	return rc;
-- 
cgit 


From 848b5b5e06ffbdbda786c68ffd4a8f84edc8be9c Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 14 Oct 2013 10:18:10 -0700
Subject: Revert "USB: OHCI: Properly handle ohci-ep93xx suspend"

This reverts commit 018258b4360b99b41c50ece917111f138e2314e7.

Manjunath is no longer at Linaro, the email address bounces.  Given
that, and the fact that others have reported problems with these
patches, I'm reverting them until someone from Linaro who can SUPPORT
THEM submits them.

I will no longer accept patches from linaro.com developers unless a
senior Linaro developer has signed off on them, which did not happen
with this patch set.

Reported-by: Olof Johansson <olof@lixom.net>
Cc: Manjunath Goudar <manjunath.goudar@linaro.org>
Cc: Manjunath Goudar <csmanjuvijay@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
---
 drivers/usb/host/ohci-ep93xx.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c
index 08409bfa1cde..492f681c70f2 100644
--- a/drivers/usb/host/ohci-ep93xx.c
+++ b/drivers/usb/host/ohci-ep93xx.c
@@ -112,20 +112,13 @@ static int ohci_hcd_ep93xx_drv_suspend(struct platform_device *pdev, pm_message_
 {
 	struct usb_hcd *hcd = platform_get_drvdata(pdev);
 	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
-	bool do_wakeup = device_may_wakeup(&pdev->dev);
-	int ret;
 
 	if (time_before(jiffies, ohci->next_statechange))
 		msleep(5);
 	ohci->next_statechange = jiffies;
 
-	ret = ohci_suspend(hcd, do_wakeup);
-	if (ret)
-		return ret;
-
-	ep93xx_stop_hc(&pdev->dev);
-
-	return ret;
+	clk_disable(usb_host_clock);
+	return 0;
 }
 
 static int ohci_hcd_ep93xx_drv_resume(struct platform_device *pdev)
-- 
cgit 


From 5d931288afe971c4018222681456226264e6a7c1 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 14 Oct 2013 10:18:25 -0700
Subject: Revert "USB: OHCI: Properly handle ohci-da8xx suspend"

This reverts commit 86a63f10211ba7d249763bbe10b52073273affa8.

Manjunath is no longer at Linaro, the email address bounces.  Given
that, and the fact that others have reported problems with these
patches, I'm reverting them until someone from Linaro who can SUPPORT
THEM submits them.

I will no longer accept patches from linaro.com developers unless a
senior Linaro developer has signed off on them, which did not happen
with this patch set.

Reported-by: Olof Johansson <olof@lixom.net>
Cc: Manjunath Goudar <manjunath.goudar@linaro.org>
Cc: Manjunath Goudar <csmanjuvijay@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
---
 drivers/usb/host/ohci-da8xx.c | 15 ++++-----------
 1 file changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/usb/host/ohci-da8xx.c b/drivers/usb/host/ohci-da8xx.c
index f8238a41c98c..9be59f11e051 100644
--- a/drivers/usb/host/ohci-da8xx.c
+++ b/drivers/usb/host/ohci-da8xx.c
@@ -406,26 +406,19 @@ static int ohci_hcd_da8xx_drv_remove(struct platform_device *dev)
 }
 
 #ifdef CONFIG_PM
-static int ohci_da8xx_suspend(struct platform_device *pdev,
-				pm_message_t message)
+static int ohci_da8xx_suspend(struct platform_device *dev, pm_message_t message)
 {
-	struct usb_hcd	*hcd	= platform_get_drvdata(pdev);
+	struct usb_hcd	*hcd	= platform_get_drvdata(dev);
 	struct ohci_hcd	*ohci	= hcd_to_ohci(hcd);
-	bool		do_wakeup	= device_may_wakeup(&pdev->dev);
-	int		ret;
 
 	if (time_before(jiffies, ohci->next_statechange))
 		msleep(5);
 	ohci->next_statechange = jiffies;
 
-	ret = ohci_suspend(hcd, do_wakeup);
-	if (ret)
-		return ret;
-
 	ohci_da8xx_clock(0);
 	hcd->state = HC_STATE_SUSPENDED;
-
-	return ret;
+	dev->dev.power.power_state = PMSG_SUSPEND;
+	return 0;
 }
 
 static int ohci_da8xx_resume(struct platform_device *dev)
-- 
cgit 


From ba8d400ec8b29d8783d5e11980084b6071f607f6 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 14 Oct 2013 10:18:39 -0700
Subject: Revert "USB: OHCI: Properly handle ohci-s3c2410 suspend"

This reverts commit 19d339430403336f2f3c9d502db5f4e51fa21729.

Manjunath is no longer at Linaro, the email address bounces.  Given
that, and the fact that others have reported problems with these
patches, I'm reverting them until someone from Linaro who can SUPPORT
THEM submits them.

I will no longer accept patches from linaro.com developers unless a
senior Linaro developer has signed off on them, which did not happen
with this patch set.

Reported-by: Olof Johansson <olof@lixom.net>
Cc: Manjunath Goudar <manjunath.goudar@linaro.org>
Cc: Manjunath Goudar <csmanjuvijay@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
---
 drivers/usb/host/ohci-s3c2410.c | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c
index b5bf9b7a54fc..be3429e08d90 100644
--- a/drivers/usb/host/ohci-s3c2410.c
+++ b/drivers/usb/host/ohci-s3c2410.c
@@ -426,15 +426,28 @@ static int ohci_hcd_s3c2410_drv_remove(struct platform_device *pdev)
 static int ohci_hcd_s3c2410_drv_suspend(struct device *dev)
 {
 	struct usb_hcd *hcd = dev_get_drvdata(dev);
+	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
 	struct platform_device *pdev = to_platform_device(dev);
-	bool do_wakeup = device_may_wakeup(dev);
+	unsigned long flags;
 	int rc = 0;
 
-	rc = ohci_suspend(hcd, do_wakeup);
-	if (rc)
-		return rc;
+	/*
+	 * Root hub was already suspended. Disable irq emission and
+	 * mark HW unaccessible, bail out if RH has been resumed. Use
+	 * the spinlock to properly synchronize with possible pending
+	 * RH suspend or resume activity.
+	 */
+	spin_lock_irqsave(&ohci->lock, flags);
+	if (ohci->rh_state != OHCI_RH_SUSPENDED) {
+		rc = -EINVAL;
+		goto bail;
+	}
+
+	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
 
 	s3c2410_stop_hc(pdev);
+bail:
+	spin_unlock_irqrestore(&ohci->lock, flags);
 
 	return rc;
 }
-- 
cgit 


From 118cb990cd66791e5ae86bfae22b8b9c64bd5fd9 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 14 Oct 2013 10:18:55 -0700
Subject: Revert "USB: OHCI: Properly handle ohci-at91 suspend"

This reverts commit 056ca85dab838bf064485b6cd73ddfcd9bf707e7.

Manjunath is no longer at Linaro, the email address bounces.  Given
that, and the fact that others have reported problems with these
patches, I'm reverting them until someone from Linaro who can SUPPORT
THEM submits them.

I will no longer accept patches from linaro.com developers unless a
senior Linaro developer has signed off on them, which did not happen
with this patch set.

Reported-by: Olof Johansson <olof@lixom.net>
Cc: Manjunath Goudar <manjunath.goudar@linaro.org>
Cc: Manjunath Goudar <csmanjuvijay@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
---
 drivers/usb/host/ohci-at91.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index f2d840370a87..476b5a5baf25 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -636,14 +636,8 @@ ohci_hcd_at91_drv_suspend(struct platform_device *pdev, pm_message_t mesg)
 {
 	struct usb_hcd	*hcd = platform_get_drvdata(pdev);
 	struct ohci_hcd	*ohci = hcd_to_ohci(hcd);
-	bool		do_wakeup = device_may_wakeup(&pdev->dev);
-	int		ret;
 
-	ret = ohci_suspend(hcd, do_wakeup);
-	if (ret)
-		return ret;
-
-	if (do_wakeup)
+	if (device_may_wakeup(&pdev->dev))
 		enable_irq_wake(hcd->irq);
 
 	/*
@@ -664,7 +658,7 @@ ohci_hcd_at91_drv_suspend(struct platform_device *pdev, pm_message_t mesg)
 		at91_stop_clock();
 	}
 
-	return ret;
+	return 0;
 }
 
 static int ohci_hcd_at91_drv_resume(struct platform_device *pdev)
-- 
cgit 


From ca1ad0ffcaa6194a05a2612f8afb49179d998256 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 14 Oct 2013 10:19:10 -0700
Subject: Revert "USB: OHCI: Properly handle OHCI controller suspend"

This reverts commit 476e4bf939c9b947ea49923700fbac655cc9057c.

Manjunath is no longer at Linaro, the email address bounces.  Given
that, and the fact that others have reported problems with these
patches, I'm reverting them until someone from Linaro who can SUPPORT
THEM submits them.

I will no longer accept patches from linaro.com developers unless a
senior Linaro developer has signed off on them, which did not happen
with this patch set.

Reported-by: Olof Johansson <olof@lixom.net>
Cc: Manjunath Goudar <manjunath.goudar@linaro.org>
Cc: Manjunath Goudar <csmanjuvijay@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
---
 drivers/usb/host/ohci-hcd.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 310bcfe4ebc4..8ada13f8dde2 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -1036,7 +1036,6 @@ int ohci_suspend(struct usb_hcd *hcd, bool do_wakeup)
 {
 	struct ohci_hcd	*ohci = hcd_to_ohci (hcd);
 	unsigned long	flags;
-	int		rc = 0;
 
 	/* Disable irq emission and mark HW unaccessible. Use
 	 * the spinlock to properly synchronize with possible pending
@@ -1049,13 +1048,7 @@ int ohci_suspend(struct usb_hcd *hcd, bool do_wakeup)
 	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
 	spin_unlock_irqrestore (&ohci->lock, flags);
 
-	synchronize_irq(hcd->irq);
-
-	if (do_wakeup && HCD_WAKEUP_PENDING(hcd)) {
-		ohci_resume(hcd, false);
-		rc = -EBUSY;
-	}
-	return rc;
+	return 0;
 }
 EXPORT_SYMBOL_GPL(ohci_suspend);
 
-- 
cgit 


From 2c067509a1e3540613ef597c5dc6bd1f47d539cb Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 11 Oct 2013 18:29:58 +0900
Subject: spi: pl022: Use dev_info() instead of printk()

Change raw printk() call to dev_info() to provide a better message
to userspace so it can properly identify the device.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-pl022.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-pl022.c b/drivers/spi/spi-pl022.c
index c13d523f1f48..6e77c938a6ae 100644
--- a/drivers/spi/spi-pl022.c
+++ b/drivers/spi/spi-pl022.c
@@ -2173,8 +2173,8 @@ static int pl022_probe(struct amba_device *adev, const struct amba_id *id)
 		status = -ENOMEM;
 		goto err_no_ioremap;
 	}
-	printk(KERN_INFO "pl022: mapped registers from %pa to %p\n",
-	       &adev->res.start, pl022->virtbase);
+	dev_info(&adev->dev, "mapped registers from %pa to %p\n",
+		&adev->res.start, pl022->virtbase);
 
 	pl022->clk = devm_clk_get(&adev->dev, NULL);
 	if (IS_ERR(pl022->clk)) {
-- 
cgit 


From e0045ebf3be4a7461a42b7f87c1c094ac7e4db78 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 11 Oct 2013 18:31:41 +0900
Subject: spi: dw-pci: Use dev_info() instead of printk()

Change raw printk() call to dev_info() to provide a better message
to userspace so it can properly identify the device.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-dw-pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-dw-pci.c b/drivers/spi/spi-dw-pci.c
index 6a708620816a..66fa9955ea14 100644
--- a/drivers/spi/spi-dw-pci.c
+++ b/drivers/spi/spi-dw-pci.c
@@ -40,7 +40,7 @@ static int spi_pci_probe(struct pci_dev *pdev,
 	int pci_bar = 0;
 	int ret;
 
-	printk(KERN_INFO "DW: found PCI SPI controller(ID: %04x:%04x)\n",
+	dev_info(&pdev->dev, "found PCI SPI controller(ID: %04x:%04x)\n",
 		pdev->vendor, pdev->device);
 
 	ret = pci_enable_device(pdev);
-- 
cgit 


From 5fe5f05e2202414a8b9015e9aedf19e08f6fe832 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 14 Oct 2013 10:31:51 +0900
Subject: spi: Fix checkpatch issue

Fix the following checkpatch error and warnings.

  ERROR: space required after that ',' (ctx:VxV)
  WARNING: quoted string split across lines
  WARNING: max() should probably be max_t(int, nb, master->num_chipselect)
  WARNING: sizeof *spi should be sizeof(*spi)
  WARNING: sizeof *master should be sizeof(*master)
  WARNING: sizeof x should be sizeof(x)

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 7f8057f3433a..956b26c2b737 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -325,7 +325,7 @@ struct spi_device *spi_alloc_device(struct spi_master *master)
 	if (!spi_master_get(master))
 		return NULL;
 
-	spi = kzalloc(sizeof *spi, GFP_KERNEL);
+	spi = kzalloc(sizeof(*spi), GFP_KERNEL);
 	if (!spi) {
 		dev_err(dev, "cannot alloc spi_device\n");
 		spi_master_put(master);
@@ -1093,7 +1093,7 @@ struct spi_master *spi_alloc_master(struct device *dev, unsigned size)
 	if (!dev)
 		return NULL;
 
-	master = kzalloc(size + sizeof *master, GFP_KERNEL);
+	master = kzalloc(size + sizeof(*master), GFP_KERNEL);
 	if (!master)
 		return NULL;
 
@@ -1118,7 +1118,7 @@ static int of_spi_register_master(struct spi_master *master)
 		return 0;
 
 	nb = of_gpio_named_count(np, "cs-gpios");
-	master->num_chipselect = max(nb, (int)master->num_chipselect);
+	master->num_chipselect = max_t(int, nb, master->num_chipselect);
 
 	/* Return error only for an incorrectly formed cs-gpios property */
 	if (nb == 0 || nb == -ENOENT)
@@ -1398,8 +1398,7 @@ int spi_setup(struct spi_device *spi)
 	if (spi->master->setup)
 		status = spi->master->setup(spi);
 
-	dev_dbg(&spi->dev, "setup mode %d, %s%s%s%s"
-				"%u bits/w, %u Hz max --> %d\n",
+	dev_dbg(&spi->dev, "setup mode %d, %s%s%s%s%u bits/w, %u Hz max --> %d\n",
 			(int) (spi->mode & (SPI_CPOL | SPI_CPHA)),
 			(spi->mode & SPI_CS_HIGH) ? "cs_high, " : "",
 			(spi->mode & SPI_LSB_FIRST) ? "lsb, " : "",
@@ -1758,7 +1757,7 @@ int spi_bus_unlock(struct spi_master *master)
 EXPORT_SYMBOL_GPL(spi_bus_unlock);
 
 /* portable code must never pass more than 32 bytes */
-#define	SPI_BUFSIZ	max(32,SMP_CACHE_BYTES)
+#define	SPI_BUFSIZ	max(32, SMP_CACHE_BYTES)
 
 static u8	*buf;
 
@@ -1807,7 +1806,7 @@ int spi_write_then_read(struct spi_device *spi,
 	}
 
 	spi_message_init(&message);
-	memset(x, 0, sizeof x);
+	memset(x, 0, sizeof(x));
 	if (n_tx) {
 		x[0].len = n_tx;
 		spi_message_add_tail(&x[0], &message);
-- 
cgit 


From 01b9e0418689951c6ae4ba3b221bc42f49eb6407 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 14 Oct 2013 10:32:48 +0900
Subject: spi: atmel: Fix checkpatch issue

Fix the following checkpatch warning.

  WARNING: quoted string split across lines

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-atmel.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index 6478a9713038..a828222c3e4e 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -1401,8 +1401,7 @@ static int atmel_spi_transfer(struct spi_device *spi, struct spi_message *msg)
 			asd = spi->controller_state;
 			bits = (asd->csr >> 4) & 0xf;
 			if (bits != xfer->bits_per_word - 8) {
-				dev_dbg(&spi->dev, "you can't yet change "
-					 "bits_per_word in transfers\n");
+				dev_dbg(&spi->dev, "you can't yet change bits_per_word in transfers\n");
 				return -ENOPROTOOPT;
 			}
 		}
-- 
cgit 


From cff93c58f7a99b3bf2fc3b343a1b6ca0546120da Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 14 Oct 2013 10:33:38 +0900
Subject: spi: bitbang: Fix checkpatch issue

Fix the following checkpatch warnings

  WARNING: sizeof *cs should be sizeof(*cs)
  WARNING: please, no space before tabs
  WARNING: space prohibited between function name and open parenthesis '('
  WARNING: line over 80 characters

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-bitbang.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/spi/spi-bitbang.c b/drivers/spi/spi-bitbang.c
index 0056623dfc6b..bd222f6b677d 100644
--- a/drivers/spi/spi-bitbang.c
+++ b/drivers/spi/spi-bitbang.c
@@ -191,7 +191,7 @@ int spi_bitbang_setup(struct spi_device *spi)
 	bitbang = spi_master_get_devdata(spi->master);
 
 	if (!cs) {
-		cs = kzalloc(sizeof *cs, GFP_KERNEL);
+		cs = kzalloc(sizeof(*cs), GFP_KERNEL);
 		if (!cs)
 			return -ENOMEM;
 		spi->controller_state = cs;
@@ -258,7 +258,7 @@ static int spi_bitbang_bufs(struct spi_device *spi, struct spi_transfer *t)
 
 static int spi_bitbang_prepare_hardware(struct spi_master *spi)
 {
-	struct spi_bitbang 	*bitbang;
+	struct spi_bitbang	*bitbang;
 	unsigned long		flags;
 
 	bitbang = spi_master_get_devdata(spi);
@@ -273,7 +273,7 @@ static int spi_bitbang_prepare_hardware(struct spi_master *spi)
 static int spi_bitbang_transfer_one(struct spi_master *master,
 				    struct spi_message *m)
 {
-	struct spi_bitbang 	*bitbang;
+	struct spi_bitbang	*bitbang;
 	unsigned		nsecs;
 	struct spi_transfer	*t = NULL;
 	unsigned		cs_change;
@@ -292,7 +292,7 @@ static int spi_bitbang_transfer_one(struct spi_master *master,
 	cs_change = 1;
 	status = 0;
 
-	list_for_each_entry (t, &m->transfers, transfer_list) {
+	list_for_each_entry(t, &m->transfers, transfer_list) {
 
 		/* override speed or wordsize? */
 		if (t->speed_hz || t->bits_per_word)
@@ -349,7 +349,8 @@ static int spi_bitbang_transfer_one(struct spi_master *master,
 		if (t->delay_usecs)
 			udelay(t->delay_usecs);
 
-		if (cs_change && !list_is_last(&t->transfer_list, &m->transfers)) {
+		if (cs_change &&
+		    !list_is_last(&t->transfer_list, &m->transfers)) {
 			/* sometimes a short mid-message deselect of the chip
 			 * may be needed to terminate a mode or command
 			 */
@@ -378,7 +379,7 @@ static int spi_bitbang_transfer_one(struct spi_master *master,
 
 static int spi_bitbang_unprepare_hardware(struct spi_master *spi)
 {
-	struct spi_bitbang 	*bitbang;
+	struct spi_bitbang	*bitbang;
 	unsigned long		flags;
 
 	bitbang = spi_master_get_devdata(spi);
-- 
cgit 


From 687b63a3bfd5022706075c5181d53263464799ea Mon Sep 17 00:00:00 2001
From: Jovi Zhangwei <jovi.zhangwei@gmail.com>
Date: Fri, 11 Oct 2013 23:08:42 -0400
Subject: staging: ktap: update email name in MAINTAINERS

Use "Jovi Zhangwei" from now on.

Signed-off-by: Jovi Zhangwei <jovi.zhangwei@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 MAINTAINERS | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 500c8fa86133..6c60b4fe0ddf 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4749,7 +4749,7 @@ F:	Documentation/hwmon/k8temp
 F:	drivers/hwmon/k8temp.c
 
 KTAP
-M:	zhangwei(Jovi) <jovi.zhangwei@gmail.com>
+M:	Jovi Zhangwei <jovi.zhangwei@gmail.com>
 W:	http://www.ktap.org
 L:	ktap@freelists.org
 S:	Maintained
-- 
cgit 


From 2c856b9e3e06fa731f70458924a449928fec7dfc Mon Sep 17 00:00:00 2001
From: Jovi Zhangwei <jovi.zhangwei@gmail.com>
Date: Fri, 11 Oct 2013 23:11:57 -0400
Subject: staging: ktap: remove unused <asm/syscall.h> header file

Fengguang Wu reported that ktap compile failed in mips,
the reason is it cannot found <asm/syscall.h> in mips arch.

Due to the code serviced by <asm/syscall.h> already removed,
so just simply remove the according header file to avoid
compiler failure.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Jovi Zhangwei <jovi.zhangwei@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ktap/interpreter/library/kdebug.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/staging/ktap/interpreter/library/kdebug.c b/drivers/staging/ktap/interpreter/library/kdebug.c
index 8bbbc491b6c7..a9477beeaebf 100644
--- a/drivers/staging/ktap/interpreter/library/kdebug.c
+++ b/drivers/staging/ktap/interpreter/library/kdebug.c
@@ -23,7 +23,6 @@
 #include <linux/ctype.h>
 #include <linux/version.h>
 #include <linux/ftrace_event.h>
-#include <asm/syscall.h> //syscall_set_return_value defined here
 #include "../../include/ktap.h"
 
 static void ktap_call_probe_closure(ktap_state *mainthread, ktap_closure *cl,
-- 
cgit 


From 42f920c90d881535c049d776b692ccde3f5a10d5 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Fri, 11 Oct 2013 12:50:08 +0200
Subject: rt2x00: cleanup indentation in rt2800.h

Adjust whitespaces to move badly aligned constants
to the right column.

The patch contains no functional changes.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800.h | 42 ++++++++++++++++++------------------
 1 file changed, 21 insertions(+), 21 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h
index e3eb95292a7f..aab6b5e4f5dd 100644
--- a/drivers/net/wireless/rt2x00/rt2800.h
+++ b/drivers/net/wireless/rt2x00/rt2800.h
@@ -124,7 +124,7 @@
 /*
  * MAC_CSR0_3290: MAC_CSR0 for RT3290 to identity MAC version number.
  */
-#define MAC_CSR0_3290				0x0000
+#define MAC_CSR0_3290			0x0000
 
 /*
  * E2PROM_CSR: PCI EEPROM control register.
@@ -213,17 +213,17 @@
 /*
  * COEX_CFG_0
  */
-#define COEX_CFG0			0x0040
+#define COEX_CFG0		0x0040
 #define COEX_CFG_ANT		FIELD32(0xff000000)
 /*
  * COEX_CFG_1
  */
-#define COEX_CFG1			0x0044
+#define COEX_CFG1		0x0044
 
 /*
  * COEX_CFG_2
  */
-#define COEX_CFG2			0x0048
+#define COEX_CFG2		0x0048
 #define BT_COEX_CFG1		FIELD32(0xff000000)
 #define BT_COEX_CFG0		FIELD32(0x00ff0000)
 #define WL_COEX_CFG1		FIELD32(0x0000ff00)
@@ -237,8 +237,8 @@
 #define PLL_RESERVED_INPUT2	FIELD32(0x0000ff00)
 #define PLL_CONTROL		FIELD32(0x00070000)
 #define PLL_LPF_R1		FIELD32(0x00080000)
-#define PLL_LPF_C1_CTRL	FIELD32(0x00300000)
-#define PLL_LPF_C2_CTRL	FIELD32(0x00c00000)
+#define PLL_LPF_C1_CTRL		FIELD32(0x00300000)
+#define PLL_LPF_C2_CTRL		FIELD32(0x00c00000)
 #define PLL_CP_CURRENT_CTRL	FIELD32(0x03000000)
 #define PLL_PFD_DELAY_CTRL	FIELD32(0x0c000000)
 #define PLL_LOCK_CTRL		FIELD32(0x70000000)
@@ -2166,7 +2166,7 @@ struct mac_iveiv_entry {
  */
 #define RFCSR6_R1			FIELD8(0x03)
 #define RFCSR6_R2			FIELD8(0x40)
-#define RFCSR6_TXDIV		FIELD8(0x0c)
+#define RFCSR6_TXDIV			FIELD8(0x0c)
 /* bits for RF3053 */
 #define RFCSR6_VCO_IC			FIELD8(0xc0)
 
@@ -2204,13 +2204,13 @@ struct mac_iveiv_entry {
  * RFCSR 12:
  */
 #define RFCSR12_TX_POWER		FIELD8(0x1f)
-#define RFCSR12_DR0				FIELD8(0xe0)
+#define RFCSR12_DR0			FIELD8(0xe0)
 
 /*
  * RFCSR 13:
  */
 #define RFCSR13_TX_POWER		FIELD8(0x1f)
-#define RFCSR13_DR0				FIELD8(0xe0)
+#define RFCSR13_DR0			FIELD8(0xe0)
 
 /*
  * RFCSR 15:
@@ -2228,7 +2228,7 @@ struct mac_iveiv_entry {
 #define RFCSR17_TXMIXER_GAIN		FIELD8(0x07)
 #define RFCSR17_TX_LO1_EN		FIELD8(0x08)
 #define RFCSR17_R			FIELD8(0x20)
-#define RFCSR17_CODE                   FIELD8(0x7f)
+#define RFCSR17_CODE			FIELD8(0x7f)
 
 /* RFCSR 18 */
 #define RFCSR18_XO_TUNE_BYPASS		FIELD8(0x40)
@@ -2451,7 +2451,7 @@ enum rt2800_eeprom_word {
  */
 #define EEPROM_NIC_CONF0_RXPATH		FIELD16(0x000f)
 #define EEPROM_NIC_CONF0_TXPATH		FIELD16(0x00f0)
-#define EEPROM_NIC_CONF0_RF_TYPE		FIELD16(0x0f00)
+#define EEPROM_NIC_CONF0_RF_TYPE	FIELD16(0x0f00)
 
 /*
  * EEPROM NIC Configuration 1
@@ -2473,18 +2473,18 @@ enum rt2800_eeprom_word {
  * DAC_TEST: 0: disable, 1: enable
  */
 #define EEPROM_NIC_CONF1_HW_RADIO		FIELD16(0x0001)
-#define EEPROM_NIC_CONF1_EXTERNAL_TX_ALC		FIELD16(0x0002)
-#define EEPROM_NIC_CONF1_EXTERNAL_LNA_2G		FIELD16(0x0004)
-#define EEPROM_NIC_CONF1_EXTERNAL_LNA_5G		FIELD16(0x0008)
+#define EEPROM_NIC_CONF1_EXTERNAL_TX_ALC	FIELD16(0x0002)
+#define EEPROM_NIC_CONF1_EXTERNAL_LNA_2G	FIELD16(0x0004)
+#define EEPROM_NIC_CONF1_EXTERNAL_LNA_5G	FIELD16(0x0008)
 #define EEPROM_NIC_CONF1_CARDBUS_ACCEL		FIELD16(0x0010)
 #define EEPROM_NIC_CONF1_BW40M_SB_2G		FIELD16(0x0020)
 #define EEPROM_NIC_CONF1_BW40M_SB_5G		FIELD16(0x0040)
 #define EEPROM_NIC_CONF1_WPS_PBC		FIELD16(0x0080)
 #define EEPROM_NIC_CONF1_BW40M_2G		FIELD16(0x0100)
 #define EEPROM_NIC_CONF1_BW40M_5G		FIELD16(0x0200)
-#define EEPROM_NIC_CONF1_BROADBAND_EXT_LNA		FIELD16(0x400)
+#define EEPROM_NIC_CONF1_BROADBAND_EXT_LNA	FIELD16(0x400)
 #define EEPROM_NIC_CONF1_ANT_DIVERSITY		FIELD16(0x1800)
-#define EEPROM_NIC_CONF1_INTERNAL_TX_ALC		FIELD16(0x2000)
+#define EEPROM_NIC_CONF1_INTERNAL_TX_ALC	FIELD16(0x2000)
 #define EEPROM_NIC_CONF1_BT_COEXIST		FIELD16(0x4000)
 #define EEPROM_NIC_CONF1_DAC_TEST		FIELD16(0x8000)
 
@@ -2523,9 +2523,9 @@ enum rt2800_eeprom_word {
  * TX_STREAM: 0: Reserved, 1: 1 Stream, 2: 2 Stream
  * CRYSTAL: 00: Reserved, 01: One crystal, 10: Two crystal, 11: Reserved
  */
-#define EEPROM_NIC_CONF2_RX_STREAM		FIELD16(0x000f)
-#define EEPROM_NIC_CONF2_TX_STREAM		FIELD16(0x00f0)
-#define EEPROM_NIC_CONF2_CRYSTAL		FIELD16(0x0600)
+#define EEPROM_NIC_CONF2_RX_STREAM	FIELD16(0x000f)
+#define EEPROM_NIC_CONF2_TX_STREAM	FIELD16(0x00f0)
+#define EEPROM_NIC_CONF2_CRYSTAL	FIELD16(0x0600)
 
 /*
  * EEPROM LNA
@@ -2792,7 +2792,7 @@ enum rt2800_eeprom_word {
 #define MCU_CURRENT			0x36
 #define MCU_LED				0x50
 #define MCU_LED_STRENGTH		0x51
-#define MCU_LED_AG_CONF		0x52
+#define MCU_LED_AG_CONF			0x52
 #define MCU_LED_ACT_CONF		0x53
 #define MCU_LED_LED_POLARITY		0x54
 #define MCU_RADAR			0x60
@@ -2801,7 +2801,7 @@ enum rt2800_eeprom_word {
 #define MCU_FREQ_OFFSET			0x74
 #define MCU_BBP_SIGNAL			0x80
 #define MCU_POWER_SAVE			0x83
-#define MCU_BAND_SELECT		0x91
+#define MCU_BAND_SELECT			0x91
 
 /*
  * MCU mailbox tokens
-- 
cgit 


From a44d01419ca4f8f4bec721504fa257b6c438c77c Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Fri, 11 Oct 2013 13:18:40 +0200
Subject: rt2x00: add rt2x00_has_cap_* helpers

The rt2x00 code directly accesses the 'cap_flags'
field of 'struct rt2x00_dev' when checking presence
of a given capability flag. The direct access needs
long expressions which lowers readability of the code.

Add a few helper functions which can be used to test
device capabilities without directly accessing the
cap_flags filed.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2x00.h | 87 ++++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)

diff --git a/drivers/net/wireless/rt2x00/rt2x00.h b/drivers/net/wireless/rt2x00/rt2x00.h
index 30ed92a6121e..e4ba2ce0f212 100644
--- a/drivers/net/wireless/rt2x00/rt2x00.h
+++ b/drivers/net/wireless/rt2x00/rt2x00.h
@@ -1169,6 +1169,93 @@ static inline bool rt2x00_is_soc(struct rt2x00_dev *rt2x00dev)
 	return rt2x00_intf(rt2x00dev, RT2X00_CHIP_INTF_SOC);
 }
 
+/* Helpers for capability flags */
+
+static inline bool
+rt2x00_has_cap_flag(struct rt2x00_dev *rt2x00dev,
+		    enum rt2x00_capability_flags cap_flag)
+{
+	return test_bit(cap_flag, &rt2x00dev->cap_flags);
+}
+
+static inline bool
+rt2x00_has_cap_hw_crypto(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_HW_CRYPTO);
+}
+
+static inline bool
+rt2x00_has_cap_power_limit(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_POWER_LIMIT);
+}
+
+static inline bool
+rt2x00_has_cap_control_filters(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_CONTROL_FILTERS);
+}
+
+static inline bool
+rt2x00_has_cap_control_filter_pspoll(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_CONTROL_FILTER_PSPOLL);
+}
+
+static inline bool
+rt2x00_has_cap_pre_tbtt_interrupt(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_PRE_TBTT_INTERRUPT);
+}
+
+static inline bool
+rt2x00_has_cap_link_tuning(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_LINK_TUNING);
+}
+
+static inline bool
+rt2x00_has_cap_frame_type(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_FRAME_TYPE);
+}
+
+static inline bool
+rt2x00_has_cap_rf_sequence(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_RF_SEQUENCE);
+}
+
+static inline bool
+rt2x00_has_cap_external_lna_a(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_EXTERNAL_LNA_A);
+}
+
+static inline bool
+rt2x00_has_cap_external_lna_bg(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_EXTERNAL_LNA_BG);
+}
+
+static inline bool
+rt2x00_has_cap_double_antenna(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_DOUBLE_ANTENNA);
+}
+
+static inline bool
+rt2x00_has_cap_bt_coexist(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_BT_COEXIST);
+}
+
+static inline bool
+rt2x00_has_cap_vco_recalibration(struct rt2x00_dev *rt2x00dev)
+{
+	return rt2x00_has_cap_flag(rt2x00dev, CAPABILITY_VCO_RECALIBRATION);
+}
+
 /**
  * rt2x00queue_map_txskb - Map a skb into DMA for TX purposes.
  * @entry: Pointer to &struct queue_entry
-- 
cgit 


From 7b8a00dc571417c845aac8feb2f8e01ce96213bf Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Fri, 11 Oct 2013 13:18:41 +0200
Subject: rt2x00: rt2x00lib: use rt2x00_has_cap_* helpers

Use the appropriate helper functions instead of
directly accessing the rt2x00dev->cap_flags field
to check device capability flags.

This improves readability of the code a bit.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2x00crypto.c | 4 ++--
 drivers/net/wireless/rt2x00/rt2x00debug.c  | 2 +-
 drivers/net/wireless/rt2x00/rt2x00dev.c    | 8 ++++----
 drivers/net/wireless/rt2x00/rt2x00link.c   | 4 ++--
 drivers/net/wireless/rt2x00/rt2x00mac.c    | 6 +++---
 drivers/net/wireless/rt2x00/rt2x00queue.c  | 2 +-
 6 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2x00crypto.c b/drivers/net/wireless/rt2x00/rt2x00crypto.c
index 1ca4c7ffc189..3db0d99d9da7 100644
--- a/drivers/net/wireless/rt2x00/rt2x00crypto.c
+++ b/drivers/net/wireless/rt2x00/rt2x00crypto.c
@@ -52,7 +52,7 @@ void rt2x00crypto_create_tx_descriptor(struct rt2x00_dev *rt2x00dev,
 	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
 	struct ieee80211_key_conf *hw_key = tx_info->control.hw_key;
 
-	if (!test_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags) || !hw_key)
+	if (!rt2x00_has_cap_hw_crypto(rt2x00dev) || !hw_key)
 		return;
 
 	__set_bit(ENTRY_TXD_ENCRYPT, &txdesc->flags);
@@ -80,7 +80,7 @@ unsigned int rt2x00crypto_tx_overhead(struct rt2x00_dev *rt2x00dev,
 	struct ieee80211_key_conf *key = tx_info->control.hw_key;
 	unsigned int overhead = 0;
 
-	if (!test_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags) || !key)
+	if (!rt2x00_has_cap_hw_crypto(rt2x00dev) || !key)
 		return overhead;
 
 	/*
diff --git a/drivers/net/wireless/rt2x00/rt2x00debug.c b/drivers/net/wireless/rt2x00/rt2x00debug.c
index fe7a7f63a9ed..7f7baae5ae02 100644
--- a/drivers/net/wireless/rt2x00/rt2x00debug.c
+++ b/drivers/net/wireless/rt2x00/rt2x00debug.c
@@ -750,7 +750,7 @@ void rt2x00debug_register(struct rt2x00_dev *rt2x00dev)
 				intf, &rt2x00debug_fop_queue_stats);
 
 #ifdef CONFIG_RT2X00_LIB_CRYPTO
-	if (test_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags))
+	if (rt2x00_has_cap_hw_crypto(rt2x00dev))
 		intf->crypto_stats_entry =
 		    debugfs_create_file("crypto", S_IRUGO, intf->queue_folder,
 					intf, &rt2x00debug_fop_crypto_stats);
diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index 712eea9d398f..080b1fcae5fa 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -88,7 +88,7 @@ int rt2x00lib_enable_radio(struct rt2x00_dev *rt2x00dev)
 	rt2x00queue_start_queues(rt2x00dev);
 	rt2x00link_start_tuner(rt2x00dev);
 	rt2x00link_start_agc(rt2x00dev);
-	if (test_bit(CAPABILITY_VCO_RECALIBRATION, &rt2x00dev->cap_flags))
+	if (rt2x00_has_cap_vco_recalibration(rt2x00dev))
 		rt2x00link_start_vcocal(rt2x00dev);
 
 	/*
@@ -113,7 +113,7 @@ void rt2x00lib_disable_radio(struct rt2x00_dev *rt2x00dev)
 	 * Stop all queues
 	 */
 	rt2x00link_stop_agc(rt2x00dev);
-	if (test_bit(CAPABILITY_VCO_RECALIBRATION, &rt2x00dev->cap_flags))
+	if (rt2x00_has_cap_vco_recalibration(rt2x00dev))
 		rt2x00link_stop_vcocal(rt2x00dev);
 	rt2x00link_stop_tuner(rt2x00dev);
 	rt2x00queue_stop_queues(rt2x00dev);
@@ -234,7 +234,7 @@ void rt2x00lib_beacondone(struct rt2x00_dev *rt2x00dev)
 	 * here as they will fetch the next beacon directly prior to
 	 * transmission.
 	 */
-	if (test_bit(CAPABILITY_PRE_TBTT_INTERRUPT, &rt2x00dev->cap_flags))
+	if (rt2x00_has_cap_pre_tbtt_interrupt(rt2x00dev))
 		return;
 
 	/* fetch next beacon */
@@ -358,7 +358,7 @@ void rt2x00lib_txdone(struct queue_entry *entry,
 	 * mac80211 will expect the same data to be present it the
 	 * frame as it was passed to us.
 	 */
-	if (test_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags))
+	if (rt2x00_has_cap_hw_crypto(rt2x00dev))
 		rt2x00crypto_tx_insert_iv(entry->skb, header_length);
 
 	/*
diff --git a/drivers/net/wireless/rt2x00/rt2x00link.c b/drivers/net/wireless/rt2x00/rt2x00link.c
index a0e3c021c128..c2b3b6629188 100644
--- a/drivers/net/wireless/rt2x00/rt2x00link.c
+++ b/drivers/net/wireless/rt2x00/rt2x00link.c
@@ -353,7 +353,7 @@ static void rt2x00link_tuner(struct work_struct *work)
 	 * do not support link tuning at all, while other devices can disable
 	 * the feature from the EEPROM.
 	 */
-	if (test_bit(CAPABILITY_LINK_TUNING, &rt2x00dev->cap_flags))
+	if (rt2x00_has_cap_link_tuning(rt2x00dev))
 		rt2x00dev->ops->lib->link_tuner(rt2x00dev, qual, link->count);
 
 	/*
@@ -493,7 +493,7 @@ static void rt2x00link_vcocal(struct work_struct *work)
 void rt2x00link_register(struct rt2x00_dev *rt2x00dev)
 {
 	INIT_DELAYED_WORK(&rt2x00dev->link.agc_work, rt2x00link_agc);
-	if (test_bit(CAPABILITY_VCO_RECALIBRATION, &rt2x00dev->cap_flags))
+	if (rt2x00_has_cap_vco_recalibration(rt2x00dev))
 		INIT_DELAYED_WORK(&rt2x00dev->link.vco_work, rt2x00link_vcocal);
 	INIT_DELAYED_WORK(&rt2x00dev->link.watchdog_work, rt2x00link_watchdog);
 	INIT_DELAYED_WORK(&rt2x00dev->link.work, rt2x00link_tuner);
diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c
index f883802f3505..51f17cfb93f9 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
@@ -382,11 +382,11 @@ void rt2x00mac_configure_filter(struct ieee80211_hw *hw,
 	 * of different types, but has no a separate filter for PS Poll frames,
 	 * FIF_CONTROL flag implies FIF_PSPOLL.
 	 */
-	if (!test_bit(CAPABILITY_CONTROL_FILTERS, &rt2x00dev->cap_flags)) {
+	if (!rt2x00_has_cap_control_filters(rt2x00dev)) {
 		if (*total_flags & FIF_CONTROL || *total_flags & FIF_PSPOLL)
 			*total_flags |= FIF_CONTROL | FIF_PSPOLL;
 	}
-	if (!test_bit(CAPABILITY_CONTROL_FILTER_PSPOLL, &rt2x00dev->cap_flags)) {
+	if (!rt2x00_has_cap_control_filter_pspoll(rt2x00dev)) {
 		if (*total_flags & FIF_CONTROL)
 			*total_flags |= FIF_PSPOLL;
 	}
@@ -469,7 +469,7 @@ int rt2x00mac_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
 		return 0;
 
-	if (!test_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags))
+	if (!rt2x00_has_cap_hw_crypto(rt2x00dev))
 		return -EOPNOTSUPP;
 
 	/*
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 218e3206ce1b..50590b1420a5 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -61,7 +61,7 @@ struct sk_buff *rt2x00queue_alloc_rxskb(struct queue_entry *entry, gfp_t gfp)
 	 * at least 8 bytes bytes available in headroom for IV/EIV
 	 * and 8 bytes for ICV data as tailroon.
 	 */
-	if (test_bit(CAPABILITY_HW_CRYPTO, &rt2x00dev->cap_flags)) {
+	if (rt2x00_has_cap_hw_crypto(rt2x00dev)) {
 		head_size += 8;
 		tail_size += 8;
 	}
-- 
cgit 


From c429dfef7041417515ffef5b7f619f5b24b16188 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Fri, 11 Oct 2013 13:18:42 +0200
Subject: rt2x00: rt2800lib: use rt2x00_has_cap_* helpers

Use the appropriate helper functions instead of
directly accessing the rt2x00dev->cap_flags field
to check device capability flags.

This improves readability of the code a bit.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800lib.c | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index a114cab413e9..78b31e308060 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -1780,7 +1780,7 @@ void rt2800_config_ant(struct rt2x00_dev *rt2x00dev, struct antenna_setup *ant)
 	rt2800_bbp_read(rt2x00dev, 3, &r3);
 
 	if (rt2x00_rt(rt2x00dev, RT3572) &&
-	    test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags))
+	    rt2x00_has_cap_bt_coexist(rt2x00dev))
 		rt2800_config_3572bt_ant(rt2x00dev);
 
 	/*
@@ -1792,7 +1792,7 @@ void rt2800_config_ant(struct rt2x00_dev *rt2x00dev, struct antenna_setup *ant)
 		break;
 	case 2:
 		if (rt2x00_rt(rt2x00dev, RT3572) &&
-		    test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags))
+		    rt2x00_has_cap_bt_coexist(rt2x00dev))
 			rt2x00_set_field8(&r1, BBP1_TX_ANTENNA, 1);
 		else
 			rt2x00_set_field8(&r1, BBP1_TX_ANTENNA, 2);
@@ -1822,7 +1822,7 @@ void rt2800_config_ant(struct rt2x00_dev *rt2x00dev, struct antenna_setup *ant)
 		break;
 	case 2:
 		if (rt2x00_rt(rt2x00dev, RT3572) &&
-		    test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags)) {
+		    rt2x00_has_cap_bt_coexist(rt2x00dev)) {
 			rt2x00_set_field8(&r3, BBP3_RX_ADC, 1);
 			rt2x00_set_field8(&r3, BBP3_RX_ANTENNA,
 				rt2x00dev->curr_band == IEEE80211_BAND_5GHZ);
@@ -2131,7 +2131,7 @@ static void rt2800_config_channel_rf3052(struct rt2x00_dev *rt2x00dev,
 	rt2x00_set_field8(&rfcsr, RFCSR1_TX1_PD, 0);
 	rt2x00_set_field8(&rfcsr, RFCSR1_RX2_PD, 0);
 	rt2x00_set_field8(&rfcsr, RFCSR1_TX2_PD, 0);
-	if (test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags)) {
+	if (rt2x00_has_cap_bt_coexist(rt2x00dev)) {
 		if (rf->channel <= 14) {
 			rt2x00_set_field8(&rfcsr, RFCSR1_RX0_PD, 1);
 			rt2x00_set_field8(&rfcsr, RFCSR1_TX0_PD, 1);
@@ -2664,7 +2664,7 @@ static void rt2800_config_channel_rf53xx(struct rt2x00_dev *rt2x00dev,
 	if (rf->channel <= 14) {
 		int idx = rf->channel-1;
 
-		if (test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags)) {
+		if (rt2x00_has_cap_bt_coexist(rt2x00dev)) {
 			if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390F)) {
 				/* r55/r59 value array of channel 1~14 */
 				static const char r55_bt_rev[] = {0x83, 0x83,
@@ -3210,8 +3210,7 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
 	if (rf->channel <= 14) {
 		if (!rt2x00_rt(rt2x00dev, RT5390) &&
 		    !rt2x00_rt(rt2x00dev, RT5392)) {
-			if (test_bit(CAPABILITY_EXTERNAL_LNA_BG,
-				     &rt2x00dev->cap_flags)) {
+			if (rt2x00_has_cap_external_lna_bg(rt2x00dev)) {
 				rt2800_bbp_write(rt2x00dev, 82, 0x62);
 				rt2800_bbp_write(rt2x00dev, 75, 0x46);
 			} else {
@@ -3236,7 +3235,7 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
 		if (rt2x00_rt(rt2x00dev, RT3593))
 			rt2800_bbp_write(rt2x00dev, 83, 0x9a);
 
-		if (test_bit(CAPABILITY_EXTERNAL_LNA_A, &rt2x00dev->cap_flags))
+		if (rt2x00_has_cap_external_lna_a(rt2x00dev))
 			rt2800_bbp_write(rt2x00dev, 75, 0x46);
 		else
 			rt2800_bbp_write(rt2x00dev, 75, 0x50);
@@ -3272,7 +3271,7 @@ static void rt2800_config_channel(struct rt2x00_dev *rt2x00dev,
 		/* Turn on primary PAs */
 		rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_A0_EN,
 				   rf->channel > 14);
-		if (test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags))
+		if (rt2x00_has_cap_bt_coexist(rt2x00dev))
 			rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_G0_EN, 1);
 		else
 			rt2x00_set_field32(&tx_pin, TX_PIN_CFG_PA_PE_G0_EN,
@@ -3574,7 +3573,7 @@ static int rt2800_get_txpower_reg_delta(struct rt2x00_dev *rt2x00dev,
 {
 	int delta;
 
-	if (test_bit(CAPABILITY_POWER_LIMIT, &rt2x00dev->cap_flags))
+	if (rt2x00_has_cap_power_limit(rt2x00dev))
 		return 0;
 
 	/*
@@ -3603,7 +3602,7 @@ static u8 rt2800_compensate_txpower(struct rt2x00_dev *rt2x00dev, int is_rate_b,
 	if (rt2x00_rt(rt2x00dev, RT3593))
 		return min_t(u8, txpower, 0xc);
 
-	if (test_bit(CAPABILITY_POWER_LIMIT, &rt2x00dev->cap_flags)) {
+	if (rt2x00_has_cap_power_limit(rt2x00dev)) {
 		/*
 		 * Check if eirp txpower exceed txpower_limit.
 		 * We use OFDM 6M as criterion and its eirp txpower
@@ -5524,7 +5523,7 @@ static void rt2800_init_bbp_53xx(struct rt2x00_dev *rt2x00dev)
 	ant = (div_mode == 3) ? 1 : 0;
 
 	/* check if this is a Bluetooth combo card */
-	if (test_bit(CAPABILITY_BT_COEXIST, &rt2x00dev->cap_flags)) {
+	if (rt2x00_has_cap_bt_coexist(rt2x00dev)) {
 		u32 reg;
 
 		rt2800_register_read(rt2x00dev, GPIO_CTRL, &reg);
@@ -5833,7 +5832,7 @@ static void rt2800_normal_mode_setup_3xxx(struct rt2x00_dev *rt2x00dev)
 	    rt2x00_rt_rev_lt(rt2x00dev, RT3071, REV_RT3071E) ||
 	    rt2x00_rt_rev_lt(rt2x00dev, RT3090, REV_RT3090E) ||
 	    rt2x00_rt_rev_lt(rt2x00dev, RT3390, REV_RT3390E)) {
-		if (!test_bit(CAPABILITY_EXTERNAL_LNA_BG, &rt2x00dev->cap_flags))
+		if (!rt2x00_has_cap_external_lna_bg(rt2x00dev))
 			rt2x00_set_field8(&rfcsr, RFCSR17_R, 1);
 	}
 
-- 
cgit 


From f3218beef6e21769df6ead91717be9f3986668a4 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Fri, 11 Oct 2013 13:18:43 +0200
Subject: rt2x00: rt61pci: use rt2x00_has_cap_* helpers

Use the appropriate helper functions instead of
directly accessing the rt2x00dev->cap_flags field
to check device capability flags.

This improves readability of the code a bit.

Compile tested only.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt61pci.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt61pci.c b/drivers/net/wireless/rt2x00/rt61pci.c
index 54d3ddfc9888..a5b69cb49012 100644
--- a/drivers/net/wireless/rt2x00/rt61pci.c
+++ b/drivers/net/wireless/rt2x00/rt61pci.c
@@ -685,7 +685,7 @@ static void rt61pci_config_antenna_2x(struct rt2x00_dev *rt2x00dev,
 
 	rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, rt2x00_rf(rt2x00dev, RF2529));
 	rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
-			  !test_bit(CAPABILITY_FRAME_TYPE, &rt2x00dev->cap_flags));
+			  !rt2x00_has_cap_frame_type(rt2x00dev));
 
 	/*
 	 * Configure the RX antenna.
@@ -813,10 +813,10 @@ static void rt61pci_config_ant(struct rt2x00_dev *rt2x00dev,
 
 	if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ) {
 		sel = antenna_sel_a;
-		lna = test_bit(CAPABILITY_EXTERNAL_LNA_A, &rt2x00dev->cap_flags);
+		lna = rt2x00_has_cap_external_lna_a(rt2x00dev);
 	} else {
 		sel = antenna_sel_bg;
-		lna = test_bit(CAPABILITY_EXTERNAL_LNA_BG, &rt2x00dev->cap_flags);
+		lna = rt2x00_has_cap_external_lna_bg(rt2x00dev);
 	}
 
 	for (i = 0; i < ARRAY_SIZE(antenna_sel_a); i++)
@@ -836,7 +836,7 @@ static void rt61pci_config_ant(struct rt2x00_dev *rt2x00dev,
 	else if (rt2x00_rf(rt2x00dev, RF2527))
 		rt61pci_config_antenna_2x(rt2x00dev, ant);
 	else if (rt2x00_rf(rt2x00dev, RF2529)) {
-		if (test_bit(CAPABILITY_DOUBLE_ANTENNA, &rt2x00dev->cap_flags))
+		if (rt2x00_has_cap_double_antenna(rt2x00dev))
 			rt61pci_config_antenna_2x(rt2x00dev, ant);
 		else
 			rt61pci_config_antenna_2529(rt2x00dev, ant);
@@ -850,13 +850,13 @@ static void rt61pci_config_lna_gain(struct rt2x00_dev *rt2x00dev,
 	short lna_gain = 0;
 
 	if (libconf->conf->chandef.chan->band == IEEE80211_BAND_2GHZ) {
-		if (test_bit(CAPABILITY_EXTERNAL_LNA_BG, &rt2x00dev->cap_flags))
+		if (rt2x00_has_cap_external_lna_bg(rt2x00dev))
 			lna_gain += 14;
 
 		rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG, &eeprom);
 		lna_gain -= rt2x00_get_field16(eeprom, EEPROM_RSSI_OFFSET_BG_1);
 	} else {
-		if (test_bit(CAPABILITY_EXTERNAL_LNA_A, &rt2x00dev->cap_flags))
+		if (rt2x00_has_cap_external_lna_a(rt2x00dev))
 			lna_gain += 14;
 
 		rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_A, &eeprom);
@@ -1054,14 +1054,14 @@ static void rt61pci_link_tuner(struct rt2x00_dev *rt2x00dev,
 	if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ) {
 		low_bound = 0x28;
 		up_bound = 0x48;
-		if (test_bit(CAPABILITY_EXTERNAL_LNA_A, &rt2x00dev->cap_flags)) {
+		if (rt2x00_has_cap_external_lna_a(rt2x00dev)) {
 			low_bound += 0x10;
 			up_bound += 0x10;
 		}
 	} else {
 		low_bound = 0x20;
 		up_bound = 0x40;
-		if (test_bit(CAPABILITY_EXTERNAL_LNA_BG, &rt2x00dev->cap_flags)) {
+		if (rt2x00_has_cap_external_lna_bg(rt2x00dev)) {
 			low_bound += 0x10;
 			up_bound += 0x10;
 		}
@@ -2578,7 +2578,7 @@ static int rt61pci_init_eeprom(struct rt2x00_dev *rt2x00dev)
 	 * eeprom word.
 	 */
 	if (rt2x00_rf(rt2x00dev, RF2529) &&
-	    !test_bit(CAPABILITY_DOUBLE_ANTENNA, &rt2x00dev->cap_flags)) {
+	    !rt2x00_has_cap_double_antenna(rt2x00dev)) {
 		rt2x00dev->default_ant.rx =
 		    ANTENNA_A + rt2x00_get_field16(eeprom, EEPROM_NIC_RX_FIXED);
 		rt2x00dev->default_ant.tx =
@@ -2793,7 +2793,7 @@ static int rt61pci_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 	spec->supported_bands = SUPPORT_BAND_2GHZ;
 	spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
 
-	if (!test_bit(CAPABILITY_RF_SEQUENCE, &rt2x00dev->cap_flags)) {
+	if (!rt2x00_has_cap_rf_sequence(rt2x00dev)) {
 		spec->num_channels = 14;
 		spec->channels = rf_vals_noseq;
 	} else {
-- 
cgit 


From 7e43f3b066a26ac1b9c998f28d33e9f70d845033 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Fri, 11 Oct 2013 13:18:44 +0200
Subject: rt2x00: rt73usb: use rt2x00_has_cap_* helpers

Use the appropriate helper functions instead of
directly accessing the rt2x00dev->cap_flags field
to check device capability flags.

This improves readability of the code a bit.

Compile tested only.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt73usb.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt73usb.c b/drivers/net/wireless/rt2x00/rt73usb.c
index 1d3880e09a13..1baf9c896dcd 100644
--- a/drivers/net/wireless/rt2x00/rt73usb.c
+++ b/drivers/net/wireless/rt2x00/rt73usb.c
@@ -595,8 +595,8 @@ static void rt73usb_config_antenna_5x(struct rt2x00_dev *rt2x00dev,
 	switch (ant->rx) {
 	case ANTENNA_HW_DIVERSITY:
 		rt2x00_set_field8(&r4, BBP_R4_RX_ANTENNA_CONTROL, 2);
-		temp = !test_bit(CAPABILITY_FRAME_TYPE, &rt2x00dev->cap_flags)
-		       && (rt2x00dev->curr_band != IEEE80211_BAND_5GHZ);
+		temp = !rt2x00_has_cap_frame_type(rt2x00dev) &&
+		       (rt2x00dev->curr_band != IEEE80211_BAND_5GHZ);
 		rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END, temp);
 		break;
 	case ANTENNA_A:
@@ -636,7 +636,7 @@ static void rt73usb_config_antenna_2x(struct rt2x00_dev *rt2x00dev,
 
 	rt2x00_set_field8(&r3, BBP_R3_SMART_MODE, 0);
 	rt2x00_set_field8(&r4, BBP_R4_RX_FRAME_END,
-			  !test_bit(CAPABILITY_FRAME_TYPE, &rt2x00dev->cap_flags));
+			  !rt2x00_has_cap_frame_type(rt2x00dev));
 
 	/*
 	 * Configure the RX antenna.
@@ -709,10 +709,10 @@ static void rt73usb_config_ant(struct rt2x00_dev *rt2x00dev,
 
 	if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ) {
 		sel = antenna_sel_a;
-		lna = test_bit(CAPABILITY_EXTERNAL_LNA_A, &rt2x00dev->cap_flags);
+		lna = rt2x00_has_cap_external_lna_a(rt2x00dev);
 	} else {
 		sel = antenna_sel_bg;
-		lna = test_bit(CAPABILITY_EXTERNAL_LNA_BG, &rt2x00dev->cap_flags);
+		lna = rt2x00_has_cap_external_lna_bg(rt2x00dev);
 	}
 
 	for (i = 0; i < ARRAY_SIZE(antenna_sel_a); i++)
@@ -740,7 +740,7 @@ static void rt73usb_config_lna_gain(struct rt2x00_dev *rt2x00dev,
 	short lna_gain = 0;
 
 	if (libconf->conf->chandef.chan->band == IEEE80211_BAND_2GHZ) {
-		if (test_bit(CAPABILITY_EXTERNAL_LNA_BG, &rt2x00dev->cap_flags))
+		if (rt2x00_has_cap_external_lna_bg(rt2x00dev))
 			lna_gain += 14;
 
 		rt2x00_eeprom_read(rt2x00dev, EEPROM_RSSI_OFFSET_BG, &eeprom);
@@ -930,7 +930,7 @@ static void rt73usb_link_tuner(struct rt2x00_dev *rt2x00dev,
 		low_bound = 0x28;
 		up_bound = 0x48;
 
-		if (test_bit(CAPABILITY_EXTERNAL_LNA_A, &rt2x00dev->cap_flags)) {
+		if (rt2x00_has_cap_external_lna_a(rt2x00dev)) {
 			low_bound += 0x10;
 			up_bound += 0x10;
 		}
@@ -946,7 +946,7 @@ static void rt73usb_link_tuner(struct rt2x00_dev *rt2x00dev,
 			up_bound = 0x1c;
 		}
 
-		if (test_bit(CAPABILITY_EXTERNAL_LNA_BG, &rt2x00dev->cap_flags)) {
+		if (rt2x00_has_cap_external_lna_bg(rt2x00dev)) {
 			low_bound += 0x14;
 			up_bound += 0x10;
 		}
@@ -1661,7 +1661,7 @@ static int rt73usb_agc_to_rssi(struct rt2x00_dev *rt2x00dev, int rxd_w1)
 	}
 
 	if (rt2x00dev->curr_band == IEEE80211_BAND_5GHZ) {
-		if (test_bit(CAPABILITY_EXTERNAL_LNA_A, &rt2x00dev->cap_flags)) {
+		if (rt2x00_has_cap_external_lna_a(rt2x00dev)) {
 			if (lna == 3 || lna == 2)
 				offset += 10;
 		} else {
-- 
cgit 


From 50d60c6322f14e32bc11635732c54db1447fd3f5 Mon Sep 17 00:00:00 2001
From: Fengguang Wu <fengguang.wu@intel.com>
Date: Fri, 11 Oct 2013 23:30:26 +0800
Subject: wcn36xx: fix coccinelle warnings

drivers/net/wireless/ath/wcn36xx/debug.c:27:11-31: WARNING opportunity for simple_open, see also structure on line 106
/c/kernel-tests/src/i386/drivers/net/wireless/ath/wcn36xx/debug.c:27:11-31: WARNING opportunity for simple_open, see also structure on line 148

 This removes an open coded simple_open() function
 and replaces file operations references to the function
 with simple_open() instead.

Generated by: coccinelle/api/simple_open.cocci

CC: Eugene Krasnikov <k.eugene.e@gmail.com>
CC: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/wcn36xx/debug.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/debug.c b/drivers/net/wireless/ath/wcn36xx/debug.c
index 682bcd650f70..5b84f7ae0b1e 100644
--- a/drivers/net/wireless/ath/wcn36xx/debug.c
+++ b/drivers/net/wireless/ath/wcn36xx/debug.c
@@ -24,13 +24,6 @@
 
 #ifdef CONFIG_WCN36XX_DEBUGFS
 
-static int wcn36xx_debugfs_open(struct inode *inode, struct file *file)
-{
-	file->private_data = inode->i_private;
-
-	return 0;
-}
-
 static ssize_t read_file_bool_bmps(struct file *file, char __user *user_buf,
 				   size_t count, loff_t *ppos)
 {
@@ -103,7 +96,7 @@ static ssize_t write_file_bool_bmps(struct file *file,
 }
 
 static const struct file_operations fops_wcn36xx_bmps = {
-	.open  =       wcn36xx_debugfs_open,
+	.open = simple_open,
 	.read  =       read_file_bool_bmps,
 	.write =       write_file_bool_bmps,
 };
@@ -145,7 +138,7 @@ static ssize_t write_file_dump(struct file *file,
 }
 
 static const struct file_operations fops_wcn36xx_dump = {
-	.open  =       wcn36xx_debugfs_open,
+	.open = simple_open,
 	.write =       write_file_dump,
 };
 
-- 
cgit 


From 1a04d59d3ec982689552077172893b6836def984 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 11 Oct 2013 23:30:52 +0200
Subject: ath9k: use a separate data structure for rx buffers

There's no shared code for handling both rx and tx buffers, and tx
buffers require a lot more metadata than rx buffers.
Using a separate data structure for rx reduces memory usage and improves
cache footprint.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ath9k.h | 10 +++-
 drivers/net/wireless/ath/ath9k/init.c  | 84 ++++++++++++++++++++++++----------
 drivers/net/wireless/ath/ath9k/recv.c  | 48 +++++++++----------
 3 files changed, 92 insertions(+), 50 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 8878f2dada2d..83c045549db4 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -207,6 +207,14 @@ struct ath_frame_info {
 	u8 baw_tracked : 1;
 };
 
+struct ath_rxbuf {
+	struct list_head list;
+	struct sk_buff *bf_mpdu;
+	void *bf_desc;
+	dma_addr_t bf_daddr;
+	dma_addr_t bf_buf_addr;
+};
+
 struct ath_buf_state {
 	u8 bf_type;
 	u8 bfs_paprd;
@@ -307,7 +315,7 @@ struct ath_rx {
 	struct ath_descdma rxdma;
 	struct ath_rx_edma rx_edma[ATH9K_RX_QUEUE_MAX];
 
-	struct ath_buf *buf_hold;
+	struct ath_rxbuf *buf_hold;
 	struct sk_buff *frag;
 
 	u32 ampdu_ref;
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index e3d11c41a145..2306f5788675 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -347,7 +347,6 @@ int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
 {
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 	u8 *ds;
-	struct ath_buf *bf;
 	int i, bsize, desc_len;
 
 	ath_dbg(common, CONFIG, "%s DMA: %u buffers %u desc/buf\n",
@@ -399,33 +398,68 @@ int ath_descdma_setup(struct ath_softc *sc, struct ath_descdma *dd,
 		ito64(dd->dd_desc_paddr), /*XXX*/(u32) dd->dd_desc_len);
 
 	/* allocate buffers */
-	bsize = sizeof(struct ath_buf) * nbuf;
-	bf = devm_kzalloc(sc->dev, bsize, GFP_KERNEL);
-	if (!bf)
-		return -ENOMEM;
+	if (is_tx) {
+		struct ath_buf *bf;
+
+		bsize = sizeof(struct ath_buf) * nbuf;
+		bf = devm_kzalloc(sc->dev, bsize, GFP_KERNEL);
+		if (!bf)
+			return -ENOMEM;
+
+		for (i = 0; i < nbuf; i++, bf++, ds += (desc_len * ndesc)) {
+			bf->bf_desc = ds;
+			bf->bf_daddr = DS2PHYS(dd, ds);
+
+			if (!(sc->sc_ah->caps.hw_caps &
+				  ATH9K_HW_CAP_4KB_SPLITTRANS)) {
+				/*
+				 * Skip descriptor addresses which can cause 4KB
+				 * boundary crossing (addr + length) with a 32 dword
+				 * descriptor fetch.
+				 */
+				while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) {
+					BUG_ON((caddr_t) bf->bf_desc >=
+						   ((caddr_t) dd->dd_desc +
+						dd->dd_desc_len));
+
+					ds += (desc_len * ndesc);
+					bf->bf_desc = ds;
+					bf->bf_daddr = DS2PHYS(dd, ds);
+				}
+			}
+			list_add_tail(&bf->list, head);
+		}
+	} else {
+		struct ath_rxbuf *bf;
+
+		bsize = sizeof(struct ath_rxbuf) * nbuf;
+		bf = devm_kzalloc(sc->dev, bsize, GFP_KERNEL);
+		if (!bf)
+			return -ENOMEM;
 
-	for (i = 0; i < nbuf; i++, bf++, ds += (desc_len * ndesc)) {
-		bf->bf_desc = ds;
-		bf->bf_daddr = DS2PHYS(dd, ds);
-
-		if (!(sc->sc_ah->caps.hw_caps &
-		      ATH9K_HW_CAP_4KB_SPLITTRANS)) {
-			/*
-			 * Skip descriptor addresses which can cause 4KB
-			 * boundary crossing (addr + length) with a 32 dword
-			 * descriptor fetch.
-			 */
-			while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) {
-				BUG_ON((caddr_t) bf->bf_desc >=
-				       ((caddr_t) dd->dd_desc +
-					dd->dd_desc_len));
-
-				ds += (desc_len * ndesc);
-				bf->bf_desc = ds;
-				bf->bf_daddr = DS2PHYS(dd, ds);
+		for (i = 0; i < nbuf; i++, bf++, ds += (desc_len * ndesc)) {
+			bf->bf_desc = ds;
+			bf->bf_daddr = DS2PHYS(dd, ds);
+
+			if (!(sc->sc_ah->caps.hw_caps &
+				  ATH9K_HW_CAP_4KB_SPLITTRANS)) {
+				/*
+				 * Skip descriptor addresses which can cause 4KB
+				 * boundary crossing (addr + length) with a 32 dword
+				 * descriptor fetch.
+				 */
+				while (ATH_DESC_4KB_BOUND_CHECK(bf->bf_daddr)) {
+					BUG_ON((caddr_t) bf->bf_desc >=
+						   ((caddr_t) dd->dd_desc +
+						dd->dd_desc_len));
+
+					ds += (desc_len * ndesc);
+					bf->bf_desc = ds;
+					bf->bf_daddr = DS2PHYS(dd, ds);
+				}
 			}
+			list_add_tail(&bf->list, head);
 		}
-		list_add_tail(&bf->list, head);
 	}
 	return 0;
 }
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index 4ee472a5a4e4..a05164166de8 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -19,7 +19,7 @@
 #include "ath9k.h"
 #include "ar9003_mac.h"
 
-#define SKB_CB_ATHBUF(__skb)	(*((struct ath_buf **)__skb->cb))
+#define SKB_CB_ATHBUF(__skb)	(*((struct ath_rxbuf **)__skb->cb))
 
 static inline bool ath9k_check_auto_sleep(struct ath_softc *sc)
 {
@@ -35,7 +35,7 @@ static inline bool ath9k_check_auto_sleep(struct ath_softc *sc)
  * buffer (or rx fifo). This can incorrectly acknowledge packets
  * to a sender if last desc is self-linked.
  */
-static void ath_rx_buf_link(struct ath_softc *sc, struct ath_buf *bf)
+static void ath_rx_buf_link(struct ath_softc *sc, struct ath_rxbuf *bf)
 {
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_common *common = ath9k_hw_common(ah);
@@ -68,7 +68,7 @@ static void ath_rx_buf_link(struct ath_softc *sc, struct ath_buf *bf)
 	sc->rx.rxlink = &ds->ds_link;
 }
 
-static void ath_rx_buf_relink(struct ath_softc *sc, struct ath_buf *bf)
+static void ath_rx_buf_relink(struct ath_softc *sc, struct ath_rxbuf *bf)
 {
 	if (sc->rx.buf_hold)
 		ath_rx_buf_link(sc, sc->rx.buf_hold);
@@ -112,13 +112,13 @@ static bool ath_rx_edma_buf_link(struct ath_softc *sc,
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_rx_edma *rx_edma;
 	struct sk_buff *skb;
-	struct ath_buf *bf;
+	struct ath_rxbuf *bf;
 
 	rx_edma = &sc->rx.rx_edma[qtype];
 	if (skb_queue_len(&rx_edma->rx_fifo) >= rx_edma->rx_fifo_hwsize)
 		return false;
 
-	bf = list_first_entry(&sc->rx.rxbuf, struct ath_buf, list);
+	bf = list_first_entry(&sc->rx.rxbuf, struct ath_rxbuf, list);
 	list_del_init(&bf->list);
 
 	skb = bf->bf_mpdu;
@@ -138,7 +138,7 @@ static void ath_rx_addbuffer_edma(struct ath_softc *sc,
 				  enum ath9k_rx_qtype qtype)
 {
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
-	struct ath_buf *bf, *tbf;
+	struct ath_rxbuf *bf, *tbf;
 
 	if (list_empty(&sc->rx.rxbuf)) {
 		ath_dbg(common, QUEUE, "No free rx buf available\n");
@@ -154,7 +154,7 @@ static void ath_rx_addbuffer_edma(struct ath_softc *sc,
 static void ath_rx_remove_buffer(struct ath_softc *sc,
 				 enum ath9k_rx_qtype qtype)
 {
-	struct ath_buf *bf;
+	struct ath_rxbuf *bf;
 	struct ath_rx_edma *rx_edma;
 	struct sk_buff *skb;
 
@@ -171,7 +171,7 @@ static void ath_rx_edma_cleanup(struct ath_softc *sc)
 {
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_common *common = ath9k_hw_common(ah);
-	struct ath_buf *bf;
+	struct ath_rxbuf *bf;
 
 	ath_rx_remove_buffer(sc, ATH9K_RX_QUEUE_LP);
 	ath_rx_remove_buffer(sc, ATH9K_RX_QUEUE_HP);
@@ -199,7 +199,7 @@ static int ath_rx_edma_init(struct ath_softc *sc, int nbufs)
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 	struct ath_hw *ah = sc->sc_ah;
 	struct sk_buff *skb;
-	struct ath_buf *bf;
+	struct ath_rxbuf *bf;
 	int error = 0, i;
 	u32 size;
 
@@ -211,7 +211,7 @@ static int ath_rx_edma_init(struct ath_softc *sc, int nbufs)
 	ath_rx_edma_init_queue(&sc->rx.rx_edma[ATH9K_RX_QUEUE_HP],
 			       ah->caps.rx_hp_qdepth);
 
-	size = sizeof(struct ath_buf) * nbufs;
+	size = sizeof(struct ath_rxbuf) * nbufs;
 	bf = devm_kzalloc(sc->dev, size, GFP_KERNEL);
 	if (!bf)
 		return -ENOMEM;
@@ -271,7 +271,7 @@ int ath_rx_init(struct ath_softc *sc, int nbufs)
 {
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 	struct sk_buff *skb;
-	struct ath_buf *bf;
+	struct ath_rxbuf *bf;
 	int error = 0;
 
 	spin_lock_init(&sc->sc_pcu_lock);
@@ -332,7 +332,7 @@ void ath_rx_cleanup(struct ath_softc *sc)
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct sk_buff *skb;
-	struct ath_buf *bf;
+	struct ath_rxbuf *bf;
 
 	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
 		ath_rx_edma_cleanup(sc);
@@ -427,7 +427,7 @@ u32 ath_calcrxfilter(struct ath_softc *sc)
 int ath_startrecv(struct ath_softc *sc)
 {
 	struct ath_hw *ah = sc->sc_ah;
-	struct ath_buf *bf, *tbf;
+	struct ath_rxbuf *bf, *tbf;
 
 	if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
 		ath_edma_start_recv(sc);
@@ -447,7 +447,7 @@ int ath_startrecv(struct ath_softc *sc)
 	if (list_empty(&sc->rx.rxbuf))
 		goto start_recv;
 
-	bf = list_first_entry(&sc->rx.rxbuf, struct ath_buf, list);
+	bf = list_first_entry(&sc->rx.rxbuf, struct ath_rxbuf, list);
 	ath9k_hw_putrxbuf(ah, bf->bf_daddr);
 	ath9k_hw_rxena(ah);
 
@@ -603,13 +603,13 @@ static void ath_rx_ps(struct ath_softc *sc, struct sk_buff *skb, bool mybeacon)
 static bool ath_edma_get_buffers(struct ath_softc *sc,
 				 enum ath9k_rx_qtype qtype,
 				 struct ath_rx_status *rs,
-				 struct ath_buf **dest)
+				 struct ath_rxbuf **dest)
 {
 	struct ath_rx_edma *rx_edma = &sc->rx.rx_edma[qtype];
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct sk_buff *skb;
-	struct ath_buf *bf;
+	struct ath_rxbuf *bf;
 	int ret;
 
 	skb = skb_peek(&rx_edma->rx_fifo);
@@ -653,11 +653,11 @@ static bool ath_edma_get_buffers(struct ath_softc *sc,
 	return true;
 }
 
-static struct ath_buf *ath_edma_get_next_rx_buf(struct ath_softc *sc,
+static struct ath_rxbuf *ath_edma_get_next_rx_buf(struct ath_softc *sc,
 						struct ath_rx_status *rs,
 						enum ath9k_rx_qtype qtype)
 {
-	struct ath_buf *bf = NULL;
+	struct ath_rxbuf *bf = NULL;
 
 	while (ath_edma_get_buffers(sc, qtype, rs, &bf)) {
 		if (!bf)
@@ -668,13 +668,13 @@ static struct ath_buf *ath_edma_get_next_rx_buf(struct ath_softc *sc,
 	return NULL;
 }
 
-static struct ath_buf *ath_get_next_rx_buf(struct ath_softc *sc,
+static struct ath_rxbuf *ath_get_next_rx_buf(struct ath_softc *sc,
 					   struct ath_rx_status *rs)
 {
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_common *common = ath9k_hw_common(ah);
 	struct ath_desc *ds;
-	struct ath_buf *bf;
+	struct ath_rxbuf *bf;
 	int ret;
 
 	if (list_empty(&sc->rx.rxbuf)) {
@@ -682,7 +682,7 @@ static struct ath_buf *ath_get_next_rx_buf(struct ath_softc *sc,
 		return NULL;
 	}
 
-	bf = list_first_entry(&sc->rx.rxbuf, struct ath_buf, list);
+	bf = list_first_entry(&sc->rx.rxbuf, struct ath_rxbuf, list);
 	if (bf == sc->rx.buf_hold)
 		return NULL;
 
@@ -702,7 +702,7 @@ static struct ath_buf *ath_get_next_rx_buf(struct ath_softc *sc,
 	ret = ath9k_hw_rxprocdesc(ah, ds, rs);
 	if (ret == -EINPROGRESS) {
 		struct ath_rx_status trs;
-		struct ath_buf *tbf;
+		struct ath_rxbuf *tbf;
 		struct ath_desc *tds;
 
 		memset(&trs, 0, sizeof(trs));
@@ -711,7 +711,7 @@ static struct ath_buf *ath_get_next_rx_buf(struct ath_softc *sc,
 			return NULL;
 		}
 
-		tbf = list_entry(bf->list.next, struct ath_buf, list);
+		tbf = list_entry(bf->list.next, struct ath_rxbuf, list);
 
 		/*
 		 * On some hardware the descriptor status words could
@@ -1315,7 +1315,7 @@ static void ath9k_apply_ampdu_details(struct ath_softc *sc,
 
 int ath_rx_tasklet(struct ath_softc *sc, int flush, bool hp)
 {
-	struct ath_buf *bf;
+	struct ath_rxbuf *bf;
 	struct sk_buff *skb = NULL, *requeue_skb, *hdr_skb;
 	struct ieee80211_rx_status *rxs;
 	struct ath_hw *ah = sc->sc_ah;
-- 
cgit 


From 8896934c168474079ba1e81cf3f0c4a975b30406 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 11 Oct 2013 23:30:53 +0200
Subject: ath9k_hw: remove direct accesses to channel mode flags

Use wrappers where available. Simplifies code and helps with further
improvements to the channel data structure

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ani.c          |   6 +-
 drivers/net/wireless/ath/ath9k/ar5008_phy.c   |  35 ++-------
 drivers/net/wireless/ath/ath9k/ar9002_hw.c    |  26 +------
 drivers/net/wireless/ath/ath9k/ar9003_phy.c   | 105 ++++++--------------------
 drivers/net/wireless/ath/ath9k/htc_drv_main.c |  26 +------
 drivers/net/wireless/ath/ath9k/hw.c           |   7 +-
 drivers/net/wireless/ath/ath9k/hw.h           |   2 +
 drivers/net/wireless/ath/ath9k/mci.c          |   8 +-
 drivers/net/wireless/ath/ath9k/xmit.c         |   3 +-
 9 files changed, 49 insertions(+), 169 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ani.c b/drivers/net/wireless/ath/ath9k/ani.c
index be466b0ef7a7..d28923b7435b 100644
--- a/drivers/net/wireless/ath/ath9k/ani.c
+++ b/drivers/net/wireless/ath/ath9k/ani.c
@@ -338,10 +338,9 @@ void ath9k_ani_reset(struct ath_hw *ah, bool is_scanning)
 		    aniState->cckNoiseImmunityLevel !=
 		    ATH9K_ANI_CCK_DEF_LEVEL) {
 			ath_dbg(common, ANI,
-				"Restore defaults: opmode %u chan %d Mhz/0x%x is_scanning=%d ofdm:%d cck:%d\n",
+				"Restore defaults: opmode %u chan %d Mhz is_scanning=%d ofdm:%d cck:%d\n",
 				ah->opmode,
 				chan->channel,
-				chan->channelFlags,
 				is_scanning,
 				aniState->ofdmNoiseImmunityLevel,
 				aniState->cckNoiseImmunityLevel);
@@ -354,10 +353,9 @@ void ath9k_ani_reset(struct ath_hw *ah, bool is_scanning)
 		 * restore historical levels for this channel
 		 */
 		ath_dbg(common, ANI,
-			"Restore history: opmode %u chan %d Mhz/0x%x is_scanning=%d ofdm:%d cck:%d\n",
+			"Restore history: opmode %u chan %d Mhz is_scanning=%d ofdm:%d cck:%d\n",
 			ah->opmode,
 			chan->channel,
-			chan->channelFlags,
 			is_scanning,
 			aniState->ofdmNoiseImmunityLevel,
 			aniState->cckNoiseImmunityLevel);
diff --git a/drivers/net/wireless/ath/ath9k/ar5008_phy.c b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
index cb6435e7c6f5..2bfa6fbc6bb1 100644
--- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
@@ -666,8 +666,7 @@ static void ar5008_hw_set_channel_regs(struct ath_hw *ah,
 	if (IS_CHAN_HT40(chan)) {
 		phymode |= AR_PHY_FC_DYN2040_EN;
 
-		if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
-		    (chan->chanmode == CHANNEL_G_HT40PLUS))
+		if (IS_CHAN_HT40PLUS(chan))
 			phymode |= AR_PHY_FC_DYN2040_PRI_CH;
 
 	}
@@ -691,31 +690,12 @@ static int ar5008_hw_process_ini(struct ath_hw *ah,
 	int i, regWrites = 0;
 	u32 modesIndex, freqIndex;
 
-	switch (chan->chanmode) {
-	case CHANNEL_A:
-	case CHANNEL_A_HT20:
-		modesIndex = 1;
+	if (IS_CHAN_5GHZ(chan)) {
 		freqIndex = 1;
-		break;
-	case CHANNEL_A_HT40PLUS:
-	case CHANNEL_A_HT40MINUS:
-		modesIndex = 2;
-		freqIndex = 1;
-		break;
-	case CHANNEL_G:
-	case CHANNEL_G_HT20:
-	case CHANNEL_B:
-		modesIndex = 4;
-		freqIndex = 2;
-		break;
-	case CHANNEL_G_HT40PLUS:
-	case CHANNEL_G_HT40MINUS:
-		modesIndex = 3;
+		modesIndex = IS_CHAN_HT40(chan) ? 2 : 1;
+	} else {
 		freqIndex = 2;
-		break;
-
-	default:
-		return -EINVAL;
+		modesIndex = IS_CHAN_HT40(chan) ? 3 : 4;
 	}
 
 	/*
@@ -1218,12 +1198,11 @@ static void ar5008_hw_ani_cache_ini_regs(struct ath_hw *ah)
 
 	iniDef = &aniState->iniDef;
 
-	ath_dbg(common, ANI, "ver %d.%d opmode %u chan %d Mhz/0x%x\n",
+	ath_dbg(common, ANI, "ver %d.%d opmode %u chan %d Mhz\n",
 		ah->hw_version.macVersion,
 		ah->hw_version.macRev,
 		ah->opmode,
-		chan->channel,
-		chan->channelFlags);
+		chan->channel);
 
 	val = REG_READ(ah, AR_PHY_SFCORR);
 	iniDef->m1Thresh = MS(val, AR_PHY_SFCORR_M1_THRESH);
diff --git a/drivers/net/wireless/ath/ath9k/ar9002_hw.c b/drivers/net/wireless/ath/ath9k/ar9002_hw.c
index fb61b081d172..5c95fd9e9c9e 100644
--- a/drivers/net/wireless/ath/ath9k/ar9002_hw.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_hw.c
@@ -419,28 +419,10 @@ void ar9002_hw_load_ani_reg(struct ath_hw *ah, struct ath9k_channel *chan)
 	u32 modesIndex;
 	int i;
 
-	switch (chan->chanmode) {
-	case CHANNEL_A:
-	case CHANNEL_A_HT20:
-		modesIndex = 1;
-		break;
-	case CHANNEL_A_HT40PLUS:
-	case CHANNEL_A_HT40MINUS:
-		modesIndex = 2;
-		break;
-	case CHANNEL_G:
-	case CHANNEL_G_HT20:
-	case CHANNEL_B:
-		modesIndex = 4;
-		break;
-	case CHANNEL_G_HT40PLUS:
-	case CHANNEL_G_HT40MINUS:
-		modesIndex = 3;
-		break;
-
-	default:
-		return;
-	}
+	if (IS_CHAN_5GHZ(chan))
+		modesIndex = IS_CHAN_HT40(chan) ? 2 : 1;
+	else
+		modesIndex = IS_CHAN_HT40(chan) ? 3 : 4;
 
 	ENABLE_REGWRITE_BUFFER(ah);
 
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index 0131ba2f5d51..724984430448 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -551,8 +551,7 @@ static void ar9003_hw_set_channel_regs(struct ath_hw *ah,
 	if (IS_CHAN_HT40(chan)) {
 		phymode |= AR_PHY_GC_DYN2040_EN;
 		/* Configure control (primary) channel at +-10MHz */
-		if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
-		    (chan->chanmode == CHANNEL_G_HT40PLUS))
+		if (IS_CHAN_HT40PLUS(chan))
 			phymode |= AR_PHY_GC_DYN2040_PRI_CH;
 
 	}
@@ -682,41 +681,22 @@ static int ar9550_hw_get_modes_txgain_index(struct ath_hw *ah,
 {
 	int ret;
 
-	switch (chan->chanmode) {
-	case CHANNEL_A:
-	case CHANNEL_A_HT20:
-		if (chan->channel <= 5350)
-			ret = 1;
-		else if ((chan->channel > 5350) && (chan->channel <= 5600))
-			ret = 3;
+	if (IS_CHAN_2GHZ(chan)) {
+		if (IS_CHAN_HT40(chan))
+			return 7;
 		else
-			ret = 5;
-		break;
-
-	case CHANNEL_A_HT40PLUS:
-	case CHANNEL_A_HT40MINUS:
-		if (chan->channel <= 5350)
-			ret = 2;
-		else if ((chan->channel > 5350) && (chan->channel <= 5600))
-			ret = 4;
-		else
-			ret = 6;
-		break;
-
-	case CHANNEL_G:
-	case CHANNEL_G_HT20:
-	case CHANNEL_B:
-		ret = 8;
-		break;
+			return 8;
+	}
 
-	case CHANNEL_G_HT40PLUS:
-	case CHANNEL_G_HT40MINUS:
-		ret = 7;
-		break;
+	if (chan->channel <= 5350)
+		ret = 1;
+	else if ((chan->channel > 5350) && (chan->channel <= 5600))
+		ret = 3;
+	else
+		ret = 5;
 
-	default:
-		ret = -EINVAL;
-	}
+	if (IS_CHAN_HT40(chan))
+		ret++;
 
 	return ret;
 }
@@ -727,28 +707,10 @@ static int ar9003_hw_process_ini(struct ath_hw *ah,
 	unsigned int regWrites = 0, i;
 	u32 modesIndex;
 
-	switch (chan->chanmode) {
-	case CHANNEL_A:
-	case CHANNEL_A_HT20:
-		modesIndex = 1;
-		break;
-	case CHANNEL_A_HT40PLUS:
-	case CHANNEL_A_HT40MINUS:
-		modesIndex = 2;
-		break;
-	case CHANNEL_G:
-	case CHANNEL_G_HT20:
-	case CHANNEL_B:
-		modesIndex = 4;
-		break;
-	case CHANNEL_G_HT40PLUS:
-	case CHANNEL_G_HT40MINUS:
-		modesIndex = 3;
-		break;
-
-	default:
-		return -EINVAL;
-	}
+	if (IS_CHAN_5GHZ(chan))
+		modesIndex = IS_CHAN_HT40(chan) ? 2 : 1;
+	else
+		modesIndex = IS_CHAN_HT40(chan) ? 3 : 4;
 
 	/*
 	 * SOC, MAC, BB, RADIO initvals.
@@ -1273,12 +1235,11 @@ static void ar9003_hw_ani_cache_ini_regs(struct ath_hw *ah)
 	aniState = &ah->ani;
 	iniDef = &aniState->iniDef;
 
-	ath_dbg(common, ANI, "ver %d.%d opmode %u chan %d Mhz/0x%x\n",
+	ath_dbg(common, ANI, "ver %d.%d opmode %u chan %d Mhz\n",
 		ah->hw_version.macVersion,
 		ah->hw_version.macRev,
 		ah->opmode,
-		chan->channel,
-		chan->channelFlags);
+		chan->channel);
 
 	val = REG_READ(ah, AR_PHY_SFCORR);
 	iniDef->m1Thresh = MS(val, AR_PHY_SFCORR_M1_THRESH);
@@ -1536,28 +1497,10 @@ static int ar9003_hw_fast_chan_change(struct ath_hw *ah,
 	unsigned int regWrites = 0;
 	u32 modesIndex;
 
-	switch (chan->chanmode) {
-	case CHANNEL_A:
-	case CHANNEL_A_HT20:
-		modesIndex = 1;
-		break;
-	case CHANNEL_A_HT40PLUS:
-	case CHANNEL_A_HT40MINUS:
-		modesIndex = 2;
-		break;
-	case CHANNEL_G:
-	case CHANNEL_G_HT20:
-	case CHANNEL_B:
-		modesIndex = 4;
-		break;
-	case CHANNEL_G_HT40PLUS:
-	case CHANNEL_G_HT40MINUS:
-		modesIndex = 3;
-		break;
-
-	default:
-		return -EINVAL;
-	}
+	if (IS_CHAN_5GHZ(chan))
+		modesIndex = IS_CHAN_HT40(chan) ? 2 : 1;
+	else
+		modesIndex = IS_CHAN_HT40(chan) ? 3 : 4;
 
 	if (modesIndex == ah->modes_index) {
 		*ini_reloaded = false;
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index d44258172c0f..fa71af11fc5e 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -24,30 +24,10 @@
 static enum htc_phymode ath9k_htc_get_curmode(struct ath9k_htc_priv *priv,
 					      struct ath9k_channel *ichan)
 {
-	enum htc_phymode mode;
-
-	mode = -EINVAL;
-
-	switch (ichan->chanmode) {
-	case CHANNEL_G:
-	case CHANNEL_G_HT20:
-	case CHANNEL_G_HT40PLUS:
-	case CHANNEL_G_HT40MINUS:
-		mode = HTC_MODE_11NG;
-		break;
-	case CHANNEL_A:
-	case CHANNEL_A_HT20:
-	case CHANNEL_A_HT40PLUS:
-	case CHANNEL_A_HT40MINUS:
-		mode = HTC_MODE_11NA;
-		break;
-	default:
-		break;
-	}
-
-	WARN_ON(mode < 0);
+	if (IS_CHAN_5GHZ(ichan))
+		return HTC_MODE_11NA;
 
-	return mode;
+	return HTC_MODE_11NG;
 }
 
 bool ath9k_htc_setpower(struct ath9k_htc_priv *priv,
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index f11e8389a9be..7c4d600b14db 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -294,8 +294,7 @@ void ath9k_hw_get_channel_centers(struct ath_hw *ah,
 		return;
 	}
 
-	if ((chan->chanmode == CHANNEL_A_HT40PLUS) ||
-	    (chan->chanmode == CHANNEL_G_HT40PLUS)) {
+	if (IS_CHAN_HT40PLUS(chan)) {
 		centers->synth_center =
 			chan->channel + HT40_CHANNEL_CENTER_SHIFT;
 		extoff = 1;
@@ -1510,9 +1509,7 @@ static bool ath9k_hw_channel_change(struct ath_hw *ah,
 	int r;
 
 	if (pCap->hw_caps & ATH9K_HW_CAP_FCC_BAND_SWITCH) {
-		u32 cur = ah->curchan->channelFlags & (CHANNEL_2GHZ | CHANNEL_5GHZ);
-		u32 new = chan->channelFlags & (CHANNEL_2GHZ | CHANNEL_5GHZ);
-		band_switch = (cur != new);
+		band_switch = IS_CHAN_5GHZ(ah->curchan) != IS_CHAN_5GHZ(chan);
 		mode_diff = (chan->chanmode != ah->curchan->chanmode);
 	}
 
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 2babf931b459..102b3b6571f3 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -463,6 +463,8 @@ struct ath9k_channel {
 			  ((_c)->chanmode == CHANNEL_G_HT40PLUS) ||	\
 			  ((_c)->chanmode == CHANNEL_G_HT40MINUS))
 #define IS_CHAN_HT(_c) (IS_CHAN_HT20((_c)) || IS_CHAN_HT40((_c)))
+#define IS_CHAN_HT40PLUS(_c) ((_c)->chanmode & CHANNEL_HT40PLUS)
+#define IS_CHAN_HT40MINUS(_c) ((_c)->chanmode & CHANNEL_HT40MINUS)
 
 enum ath9k_power_mode {
 	ATH9K_PM_AWAKE = 0,
diff --git a/drivers/net/wireless/ath/ath9k/mci.c b/drivers/net/wireless/ath/ath9k/mci.c
index 815bee21c19a..0ac1b5f04256 100644
--- a/drivers/net/wireless/ath/ath9k/mci.c
+++ b/drivers/net/wireless/ath/ath9k/mci.c
@@ -661,9 +661,9 @@ void ath9k_mci_update_wlan_channels(struct ath_softc *sc, bool allow_all)
 	chan_start = wlan_chan - 10;
 	chan_end = wlan_chan + 10;
 
-	if (chan->chanmode == CHANNEL_G_HT40PLUS)
+	if (IS_CHAN_HT40PLUS(chan))
 		chan_end += 20;
-	else if (chan->chanmode == CHANNEL_G_HT40MINUS)
+	else if (IS_CHAN_HT40MINUS(chan))
 		chan_start -= 20;
 
 	/* adjust side band */
@@ -707,11 +707,11 @@ void ath9k_mci_set_txpower(struct ath_softc *sc, bool setchannel,
 
 	if (setchannel) {
 		struct ath9k_hw_cal_data *caldata = &sc->caldata;
-		if ((caldata->chanmode == CHANNEL_G_HT40PLUS) &&
+		if (IS_CHAN_HT40PLUS(ah->curchan) &&
 		    (ah->curchan->channel > caldata->channel) &&
 		    (ah->curchan->channel <= caldata->channel + 20))
 			return;
-		if ((caldata->chanmode == CHANNEL_G_HT40MINUS) &&
+		if (IS_CHAN_HT40MINUS(ah->curchan) &&
 		    (ah->curchan->channel < caldata->channel) &&
 		    (ah->curchan->channel >= caldata->channel - 20))
 			return;
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 62c93a655df9..563f8a9819a6 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -2023,8 +2023,7 @@ u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate)
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath9k_channel *curchan = ah->curchan;
 
-	if ((ah->caps.hw_caps & ATH9K_HW_CAP_APM) &&
-	    (curchan->channelFlags & CHANNEL_5GHZ) &&
+	if ((ah->caps.hw_caps & ATH9K_HW_CAP_APM) && IS_CHAN_5GHZ(curchan) &&
 	    (chainmask == 0x7) && (rate < 0x90))
 		return 0x3;
 	else if (AR_SREV_9462(ah) && ath9k_hw_btcoex_is_enabled(ah) &&
-- 
cgit 


From 1a5e63265f6dbd616596325d899332ddc506e83e Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 11 Oct 2013 23:30:54 +0200
Subject: ath9k_hw: remove IS_CHAN_B()

Hardware 802.11b-only mode isn't supported by the driver (the device is
configured for 802.11n/g instead). Simplify the code by removing checks
for it.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ar5008_phy.c   | 6 ++++--
 drivers/net/wireless/ath/ath9k/ar9002_calib.c | 7 ++-----
 drivers/net/wireless/ath/ath9k/ar9003_phy.c   | 6 ++++--
 drivers/net/wireless/ath/ath9k/hw.c           | 9 ++-------
 drivers/net/wireless/ath/ath9k/hw.h           | 1 -
 drivers/net/wireless/ath/ath9k/mac.c          | 6 +-----
 6 files changed, 13 insertions(+), 22 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar5008_phy.c b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
index 2bfa6fbc6bb1..b197bf2047e7 100644
--- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
@@ -794,8 +794,10 @@ static void ar5008_hw_set_rfmode(struct ath_hw *ah, struct ath9k_channel *chan)
 	if (chan == NULL)
 		return;
 
-	rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
-		? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;
+	if (IS_CHAN_2GHZ(chan))
+		rfMode |= AR_PHY_MODE_DYNAMIC;
+	else
+		rfMode |= AR_PHY_MODE_OFDM;
 
 	if (!AR_SREV_9280_20_OR_LATER(ah))
 		rfMode |= (IS_CHAN_5GHZ(chan)) ?
diff --git a/drivers/net/wireless/ath/ath9k/ar9002_calib.c b/drivers/net/wireless/ath/ath9k/ar9002_calib.c
index 32376ad74011..cdc74005650c 100644
--- a/drivers/net/wireless/ath/ath9k/ar9002_calib.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_calib.c
@@ -33,15 +33,12 @@ static bool ar9002_hw_is_cal_supported(struct ath_hw *ah,
 	bool supported = false;
 	switch (ah->supp_cals & cal_type) {
 	case IQ_MISMATCH_CAL:
-		/* Run IQ Mismatch for non-CCK only */
-		if (!IS_CHAN_B(chan))
-			supported = true;
+		supported = true;
 		break;
 	case ADC_GAIN_CAL:
 	case ADC_DC_CAL:
 		/* Run ADC Gain Cal for non-CCK & non 2GHz-HT20 only */
-		if (!IS_CHAN_B(chan) &&
-		    !((IS_CHAN_2GHZ(chan) || IS_CHAN_A_FAST_CLOCK(ah, chan)) &&
+		if (!((IS_CHAN_2GHZ(chan) || IS_CHAN_A_FAST_CLOCK(ah, chan)) &&
 		      IS_CHAN_HT20(chan)))
 			supported = true;
 		break;
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index 724984430448..312c868f05be 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -808,8 +808,10 @@ static void ar9003_hw_set_rfmode(struct ath_hw *ah,
 	if (chan == NULL)
 		return;
 
-	rfMode |= (IS_CHAN_B(chan) || IS_CHAN_G(chan))
-		? AR_PHY_MODE_DYNAMIC : AR_PHY_MODE_OFDM;
+	if (IS_CHAN_2GHZ(chan))
+		rfMode |= AR_PHY_MODE_DYNAMIC;
+	else
+		rfMode |= AR_PHY_MODE_OFDM;
 
 	if (IS_CHAN_A_FAST_CLOCK(ah, chan))
 		rfMode |= (AR_PHY_MODE_DYNAMIC | AR_PHY_MODE_DYN_CCK_DISABLE);
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 7c4d600b14db..34c8e2ebb69b 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -190,10 +190,7 @@ EXPORT_SYMBOL(ath9k_hw_wait);
 void ath9k_hw_synth_delay(struct ath_hw *ah, struct ath9k_channel *chan,
 			  int hw_delay)
 {
-	if (IS_CHAN_B(chan))
-		hw_delay = (4 * hw_delay) / 22;
-	else
-		hw_delay /= 10;
+	hw_delay /= 10;
 
 	if (IS_CHAN_HALF_RATE(chan))
 		hw_delay *= 2;
@@ -1159,9 +1156,7 @@ u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan)
 {
 	u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
 
-	if (IS_CHAN_B(chan))
-		ctl |= CTL_11B;
-	else if (IS_CHAN_G(chan))
+	if (IS_CHAN_G(chan))
 		ctl |= CTL_11G;
 	else
 		ctl |= CTL_11A;
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 102b3b6571f3..eaaf98ba2509 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -455,7 +455,6 @@ struct ath9k_channel {
 	 ((_ah)->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK))
 
 /* These macros check chanmode and not channelFlags */
-#define IS_CHAN_B(_c) ((_c)->chanmode == CHANNEL_B)
 #define IS_CHAN_HT20(_c) (((_c)->chanmode == CHANNEL_A_HT20) ||	\
 			  ((_c)->chanmode == CHANNEL_G_HT20))
 #define IS_CHAN_HT40(_c) (((_c)->chanmode == CHANNEL_A_HT40PLUS) ||	\
diff --git a/drivers/net/wireless/ath/ath9k/mac.c b/drivers/net/wireless/ath/ath9k/mac.c
index a3eff0986a3f..6a18f9d3e9cc 100644
--- a/drivers/net/wireless/ath/ath9k/mac.c
+++ b/drivers/net/wireless/ath/ath9k/mac.c
@@ -374,7 +374,6 @@ EXPORT_SYMBOL(ath9k_hw_releasetxqueue);
 bool ath9k_hw_resettxqueue(struct ath_hw *ah, u32 q)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
-	struct ath9k_channel *chan = ah->curchan;
 	struct ath9k_tx_queue_info *qi;
 	u32 cwMin, chanCwMin, value;
 
@@ -387,10 +386,7 @@ bool ath9k_hw_resettxqueue(struct ath_hw *ah, u32 q)
 	ath_dbg(common, QUEUE, "Reset TX queue: %u\n", q);
 
 	if (qi->tqi_cwmin == ATH9K_TXQ_USEDEFAULT) {
-		if (chan && IS_CHAN_B(chan))
-			chanCwMin = INIT_CWMIN_11B;
-		else
-			chanCwMin = INIT_CWMIN;
+		chanCwMin = INIT_CWMIN;
 
 		for (cwMin = 1; cwMin < chanCwMin; cwMin = (cwMin << 1) | 1);
 	} else
-- 
cgit 


From 81c507a8b09fe00a1b4a2e7e84ba7234b126c332 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 11 Oct 2013 23:30:55 +0200
Subject: ath9k_hw: remove IS_CHAN_OFDM()

The hardware is always configured with OFDM support enabled

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/hw.c | 8 ++------
 drivers/net/wireless/ath/ath9k/hw.h | 1 -
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 34c8e2ebb69b..40a1132910f5 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1544,9 +1544,7 @@ static bool ath9k_hw_channel_change(struct ath_hw *ah,
 	ath9k_hw_set_clockrate(ah);
 	ath9k_hw_apply_txpower(ah, chan, false);
 
-	if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
-		ath9k_hw_set_delta_slope(ah, chan);
-
+	ath9k_hw_set_delta_slope(ah, chan);
 	ath9k_hw_spur_mitigate_freq(ah, chan);
 
 	if (band_switch || ini_reloaded)
@@ -1981,9 +1979,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 
 	ath9k_hw_init_mfp(ah);
 
-	if (IS_CHAN_OFDM(chan) || IS_CHAN_HT(chan))
-		ath9k_hw_set_delta_slope(ah, chan);
-
+	ath9k_hw_set_delta_slope(ah, chan);
 	ath9k_hw_spur_mitigate_freq(ah, chan);
 	ah->eep_ops->set_board_values(ah, chan);
 
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index eaaf98ba2509..0e446939b2d6 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -445,7 +445,6 @@ struct ath9k_channel {
        (((_c)->channelFlags & CHANNEL_G_HT20) == CHANNEL_G_HT20) || \
        (((_c)->channelFlags & CHANNEL_G_HT40PLUS) == CHANNEL_G_HT40PLUS) || \
        (((_c)->channelFlags & CHANNEL_G_HT40MINUS) == CHANNEL_G_HT40MINUS))
-#define IS_CHAN_OFDM(_c) (((_c)->channelFlags & CHANNEL_OFDM) != 0)
 #define IS_CHAN_5GHZ(_c) (((_c)->channelFlags & CHANNEL_5GHZ) != 0)
 #define IS_CHAN_2GHZ(_c) (((_c)->channelFlags & CHANNEL_2GHZ) != 0)
 #define IS_CHAN_HALF_RATE(_c) (((_c)->channelFlags & CHANNEL_HALF) != 0)
-- 
cgit 


From 6b21fd2027f8deb6fb7d3283b4c2eacabc8eeb95 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 11 Oct 2013 23:30:56 +0200
Subject: ath9k_hw: simplify channel flags

There was some duplication between channelFlags and chanmode, as well as
a lot of redundant checks based on the combinations of flags.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/calib.c  |  1 -
 drivers/net/wireless/ath/ath9k/common.c | 75 ++++++++-----------------------
 drivers/net/wireless/ath/ath9k/hw.c     | 24 +++-------
 drivers/net/wireless/ath/ath9k/hw.h     | 80 +++++++++++----------------------
 4 files changed, 50 insertions(+), 130 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c
index d438a0341e68..fe23026d82cd 100644
--- a/drivers/net/wireless/ath/ath9k/calib.c
+++ b/drivers/net/wireless/ath/ath9k/calib.c
@@ -408,7 +408,6 @@ void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah,
 
 	ah->caldata->channel = chan->channel;
 	ah->caldata->channelFlags = chan->channelFlags;
-	ah->caldata->chanmode = chan->chanmode;
 	h = ah->caldata->nfCalHist;
 	default_nf = ath9k_hw_get_default_nf(ah, chan);
 	for (i = 0; i < NUM_NF_READINGS; i++) {
diff --git a/drivers/net/wireless/ath/ath9k/common.c b/drivers/net/wireless/ath/ath9k/common.c
index d3063c21e16c..b5ac26994f19 100644
--- a/drivers/net/wireless/ath/ath9k/common.c
+++ b/drivers/net/wireless/ath/ath9k/common.c
@@ -49,83 +49,44 @@ int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb)
 }
 EXPORT_SYMBOL(ath9k_cmn_get_hw_crypto_keytype);
 
-static u32 ath9k_get_extchanmode(struct cfg80211_chan_def *chandef)
-{
-	u32 chanmode = 0;
-
-	switch (chandef->chan->band) {
-	case IEEE80211_BAND_2GHZ:
-		switch (chandef->width) {
-		case NL80211_CHAN_WIDTH_20_NOHT:
-		case NL80211_CHAN_WIDTH_20:
-			chanmode = CHANNEL_G_HT20;
-			break;
-		case NL80211_CHAN_WIDTH_40:
-			if (chandef->center_freq1 > chandef->chan->center_freq)
-				chanmode = CHANNEL_G_HT40PLUS;
-			else
-				chanmode = CHANNEL_G_HT40MINUS;
-			break;
-		default:
-			break;
-		}
-		break;
-	case IEEE80211_BAND_5GHZ:
-		switch (chandef->width) {
-		case NL80211_CHAN_WIDTH_20_NOHT:
-		case NL80211_CHAN_WIDTH_20:
-			chanmode = CHANNEL_A_HT20;
-			break;
-		case NL80211_CHAN_WIDTH_40:
-			if (chandef->center_freq1 > chandef->chan->center_freq)
-				chanmode = CHANNEL_A_HT40PLUS;
-			else
-				chanmode = CHANNEL_A_HT40MINUS;
-			break;
-		default:
-			break;
-		}
-		break;
-	default:
-		break;
-	}
-
-	return chanmode;
-}
-
 /*
  * Update internal channel flags.
  */
 void ath9k_cmn_update_ichannel(struct ath9k_channel *ichan,
 			       struct cfg80211_chan_def *chandef)
 {
-	ichan->channel = chandef->chan->center_freq;
-	ichan->chan = chandef->chan;
-
-	if (chandef->chan->band == IEEE80211_BAND_2GHZ) {
-		ichan->chanmode = CHANNEL_G;
-		ichan->channelFlags = CHANNEL_2GHZ | CHANNEL_OFDM;
-	} else {
-		ichan->chanmode = CHANNEL_A;
-		ichan->channelFlags = CHANNEL_5GHZ | CHANNEL_OFDM;
-	}
+	struct ieee80211_channel *chan = chandef->chan;
+	u16 flags = 0;
+
+	ichan->channel = chan->center_freq;
+	ichan->chan = chan;
+
+	if (chan->band == IEEE80211_BAND_5GHZ)
+		flags |= CHANNEL_5GHZ;
 
 	switch (chandef->width) {
 	case NL80211_CHAN_WIDTH_5:
-		ichan->channelFlags |= CHANNEL_QUARTER;
+		flags |= CHANNEL_QUARTER;
 		break;
 	case NL80211_CHAN_WIDTH_10:
-		ichan->channelFlags |= CHANNEL_HALF;
+		flags |= CHANNEL_HALF;
 		break;
 	case NL80211_CHAN_WIDTH_20_NOHT:
 		break;
 	case NL80211_CHAN_WIDTH_20:
+		flags |= CHANNEL_HT;
+		break;
 	case NL80211_CHAN_WIDTH_40:
-		ichan->chanmode = ath9k_get_extchanmode(chandef);
+		if (chandef->center_freq1 > chandef->chan->center_freq)
+			flags |= CHANNEL_HT40PLUS | CHANNEL_HT;
+		else
+			flags |= CHANNEL_HT40MINUS | CHANNEL_HT;
 		break;
 	default:
 		WARN_ON(1);
 	}
+
+	ichan->channelFlags = flags;
 }
 EXPORT_SYMBOL(ath9k_cmn_update_ichannel);
 
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index 40a1132910f5..bc7382fbcf66 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1156,7 +1156,7 @@ u32 ath9k_regd_get_ctl(struct ath_regulatory *reg, struct ath9k_channel *chan)
 {
 	u32 ctl = ath_regd_get_band_ctl(reg, chan->chan->band);
 
-	if (IS_CHAN_G(chan))
+	if (IS_CHAN_2GHZ(chan))
 		ctl |= CTL_11G;
 	else
 		ctl |= CTL_11A;
@@ -1505,7 +1505,7 @@ static bool ath9k_hw_channel_change(struct ath_hw *ah,
 
 	if (pCap->hw_caps & ATH9K_HW_CAP_FCC_BAND_SWITCH) {
 		band_switch = IS_CHAN_5GHZ(ah->curchan) != IS_CHAN_5GHZ(chan);
-		mode_diff = (chan->chanmode != ah->curchan->chanmode);
+		mode_diff = (chan->channelFlags != ah->curchan->channelFlags);
 	}
 
 	for (qnum = 0; qnum < AR_NUM_QCU; qnum++) {
@@ -1814,20 +1814,11 @@ static int ath9k_hw_do_fastcc(struct ath_hw *ah, struct ath9k_channel *chan)
 		goto fail;
 
 	/*
-	 * If cross-band fcc is not supoprted, bail out if
-	 * either channelFlags or chanmode differ.
-	 *
-	 * chanmode will be different if the HT operating mode
-	 * changes because of CSA.
+	 * If cross-band fcc is not supoprted, bail out if channelFlags differ.
 	 */
-	if (!(pCap->hw_caps & ATH9K_HW_CAP_FCC_BAND_SWITCH)) {
-		if ((chan->channelFlags & CHANNEL_ALL) !=
-		    (ah->curchan->channelFlags & CHANNEL_ALL))
-			goto fail;
-
-		if (chan->chanmode != ah->curchan->chanmode)
-			goto fail;
-	}
+	if (!(pCap->hw_caps & ATH9K_HW_CAP_FCC_BAND_SWITCH) &&
+	    chan->channelFlags != ah->curchan->channelFlags)
+		goto fail;
 
 	if (!ath9k_hw_check_alive(ah))
 		goto fail;
@@ -1889,8 +1880,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 
 	ah->caldata = caldata;
 	if (caldata && (chan->channel != caldata->channel ||
-			chan->channelFlags != caldata->channelFlags ||
-			chan->chanmode != caldata->chanmode)) {
+			chan->channelFlags != caldata->channelFlags)) {
 		/* Operating channel changed, reset channel calibration data */
 		memset(caldata, 0, sizeof(*caldata));
 		ath9k_init_nfcal_hist_buffer(ah, chan);
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 0e446939b2d6..9d04d67843b2 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -369,36 +369,6 @@ enum ath9k_int {
 	ATH9K_INT_NOCARD = 0xffffffff
 };
 
-#define CHANNEL_CCK       0x00020
-#define CHANNEL_OFDM      0x00040
-#define CHANNEL_2GHZ      0x00080
-#define CHANNEL_5GHZ      0x00100
-#define CHANNEL_PASSIVE   0x00200
-#define CHANNEL_DYN       0x00400
-#define CHANNEL_HALF      0x04000
-#define CHANNEL_QUARTER   0x08000
-#define CHANNEL_HT20      0x10000
-#define CHANNEL_HT40PLUS  0x20000
-#define CHANNEL_HT40MINUS 0x40000
-
-#define CHANNEL_A           (CHANNEL_5GHZ|CHANNEL_OFDM)
-#define CHANNEL_B           (CHANNEL_2GHZ|CHANNEL_CCK)
-#define CHANNEL_G           (CHANNEL_2GHZ|CHANNEL_OFDM)
-#define CHANNEL_G_HT20      (CHANNEL_2GHZ|CHANNEL_HT20)
-#define CHANNEL_A_HT20      (CHANNEL_5GHZ|CHANNEL_HT20)
-#define CHANNEL_G_HT40PLUS  (CHANNEL_2GHZ|CHANNEL_HT40PLUS)
-#define CHANNEL_G_HT40MINUS (CHANNEL_2GHZ|CHANNEL_HT40MINUS)
-#define CHANNEL_A_HT40PLUS  (CHANNEL_5GHZ|CHANNEL_HT40PLUS)
-#define CHANNEL_A_HT40MINUS (CHANNEL_5GHZ|CHANNEL_HT40MINUS)
-#define CHANNEL_ALL				\
-	(CHANNEL_OFDM|				\
-	 CHANNEL_CCK|				\
-	 CHANNEL_2GHZ |				\
-	 CHANNEL_5GHZ |				\
-	 CHANNEL_HT20 |				\
-	 CHANNEL_HT40PLUS |			\
-	 CHANNEL_HT40MINUS)
-
 #define MAX_RTT_TABLE_ENTRY     6
 #define MAX_IQCAL_MEASUREMENT	8
 #define MAX_CL_TAB_ENTRY	16
@@ -417,8 +387,7 @@ enum ath9k_cal_flags {
 
 struct ath9k_hw_cal_data {
 	u16 channel;
-	u32 channelFlags;
-	u32 chanmode;
+	u16 channelFlags;
 	unsigned long cal_flags;
 	int32_t CalValid;
 	int8_t iCoff;
@@ -436,33 +405,34 @@ struct ath9k_hw_cal_data {
 struct ath9k_channel {
 	struct ieee80211_channel *chan;
 	u16 channel;
-	u32 channelFlags;
-	u32 chanmode;
+	u16 channelFlags;
 	s16 noisefloor;
 };
 
-#define IS_CHAN_G(_c) ((((_c)->channelFlags & (CHANNEL_G)) == CHANNEL_G) || \
-       (((_c)->channelFlags & CHANNEL_G_HT20) == CHANNEL_G_HT20) || \
-       (((_c)->channelFlags & CHANNEL_G_HT40PLUS) == CHANNEL_G_HT40PLUS) || \
-       (((_c)->channelFlags & CHANNEL_G_HT40MINUS) == CHANNEL_G_HT40MINUS))
-#define IS_CHAN_5GHZ(_c) (((_c)->channelFlags & CHANNEL_5GHZ) != 0)
-#define IS_CHAN_2GHZ(_c) (((_c)->channelFlags & CHANNEL_2GHZ) != 0)
-#define IS_CHAN_HALF_RATE(_c) (((_c)->channelFlags & CHANNEL_HALF) != 0)
-#define IS_CHAN_QUARTER_RATE(_c) (((_c)->channelFlags & CHANNEL_QUARTER) != 0)
+#define CHANNEL_5GHZ		BIT(0)
+#define CHANNEL_HALF		BIT(1)
+#define CHANNEL_QUARTER		BIT(2)
+#define CHANNEL_HT		BIT(3)
+#define CHANNEL_HT40PLUS	BIT(4)
+#define CHANNEL_HT40MINUS	BIT(5)
+
+#define IS_CHAN_5GHZ(_c) (!!((_c)->channelFlags & CHANNEL_5GHZ))
+#define IS_CHAN_2GHZ(_c) (!IS_CHAN_5GHZ(_c))
+
+#define IS_CHAN_HALF_RATE(_c) (!!((_c)->channelFlags & CHANNEL_HALF))
+#define IS_CHAN_QUARTER_RATE(_c) (!!((_c)->channelFlags & CHANNEL_QUARTER))
 #define IS_CHAN_A_FAST_CLOCK(_ah, _c)			\
-	((((_c)->channelFlags & CHANNEL_5GHZ) != 0) &&	\
-	 ((_ah)->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK))
-
-/* These macros check chanmode and not channelFlags */
-#define IS_CHAN_HT20(_c) (((_c)->chanmode == CHANNEL_A_HT20) ||	\
-			  ((_c)->chanmode == CHANNEL_G_HT20))
-#define IS_CHAN_HT40(_c) (((_c)->chanmode == CHANNEL_A_HT40PLUS) ||	\
-			  ((_c)->chanmode == CHANNEL_A_HT40MINUS) ||	\
-			  ((_c)->chanmode == CHANNEL_G_HT40PLUS) ||	\
-			  ((_c)->chanmode == CHANNEL_G_HT40MINUS))
-#define IS_CHAN_HT(_c) (IS_CHAN_HT20((_c)) || IS_CHAN_HT40((_c)))
-#define IS_CHAN_HT40PLUS(_c) ((_c)->chanmode & CHANNEL_HT40PLUS)
-#define IS_CHAN_HT40MINUS(_c) ((_c)->chanmode & CHANNEL_HT40MINUS)
+	(IS_CHAN_5GHZ(_c) && ((_ah)->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK))
+
+#define IS_CHAN_HT(_c) ((_c)->channelFlags & CHANNEL_HT)
+
+#define IS_CHAN_HT20(_c) (IS_CHAN_HT(_c) && !IS_CHAN_HT40(_c))
+
+#define IS_CHAN_HT40(_c) \
+	(!!((_c)->channelFlags & (CHANNEL_HT40PLUS | CHANNEL_HT40MINUS)))
+
+#define IS_CHAN_HT40PLUS(_c) ((_c)->channelFlags & CHANNEL_HT40PLUS)
+#define IS_CHAN_HT40MINUS(_c) ((_c)->channelFlags & CHANNEL_HT40MINUS)
 
 enum ath9k_power_mode {
 	ATH9K_PM_AWAKE = 0,
-- 
cgit 


From 2297f1c7beec785e437da3da0157666bca525c99 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 11 Oct 2013 23:30:57 +0200
Subject: ath9k: make ath9k_cmn_update_ichannel static

Rework its wrapper function to make it more generic, using it as a
replacement for previous calls to ath9k_cmn_update_ichannel.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/common.c       | 16 ++++++++--------
 drivers/net/wireless/ath/ath9k/common.h       |  7 +++----
 drivers/net/wireless/ath/ath9k/htc_drv_main.c |  6 ++----
 drivers/net/wireless/ath/ath9k/init.c         |  2 +-
 drivers/net/wireless/ath/ath9k/main.c         |  7 +++----
 5 files changed, 17 insertions(+), 21 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/common.c b/drivers/net/wireless/ath/ath9k/common.c
index b5ac26994f19..a7e5a05b2eff 100644
--- a/drivers/net/wireless/ath/ath9k/common.c
+++ b/drivers/net/wireless/ath/ath9k/common.c
@@ -52,8 +52,8 @@ EXPORT_SYMBOL(ath9k_cmn_get_hw_crypto_keytype);
 /*
  * Update internal channel flags.
  */
-void ath9k_cmn_update_ichannel(struct ath9k_channel *ichan,
-			       struct cfg80211_chan_def *chandef)
+static void ath9k_cmn_update_ichannel(struct ath9k_channel *ichan,
+				      struct cfg80211_chan_def *chandef)
 {
 	struct ieee80211_channel *chan = chandef->chan;
 	u16 flags = 0;
@@ -88,25 +88,25 @@ void ath9k_cmn_update_ichannel(struct ath9k_channel *ichan,
 
 	ichan->channelFlags = flags;
 }
-EXPORT_SYMBOL(ath9k_cmn_update_ichannel);
 
 /*
  * Get the internal channel reference.
  */
-struct ath9k_channel *ath9k_cmn_get_curchannel(struct ieee80211_hw *hw,
-					       struct ath_hw *ah)
+struct ath9k_channel *ath9k_cmn_get_channel(struct ieee80211_hw *hw,
+					    struct ath_hw *ah,
+					    struct cfg80211_chan_def *chandef)
 {
-	struct ieee80211_channel *curchan = hw->conf.chandef.chan;
+	struct ieee80211_channel *curchan = chandef->chan;
 	struct ath9k_channel *channel;
 	u8 chan_idx;
 
 	chan_idx = curchan->hw_value;
 	channel = &ah->channels[chan_idx];
-	ath9k_cmn_update_ichannel(channel, &hw->conf.chandef);
+	ath9k_cmn_update_ichannel(channel, chandef);
 
 	return channel;
 }
-EXPORT_SYMBOL(ath9k_cmn_get_curchannel);
+EXPORT_SYMBOL(ath9k_cmn_get_channel);
 
 int ath9k_cmn_count_streams(unsigned int chainmask, int max)
 {
diff --git a/drivers/net/wireless/ath/ath9k/common.h b/drivers/net/wireless/ath/ath9k/common.h
index e039bcbfbd79..eb85e1bdca88 100644
--- a/drivers/net/wireless/ath/ath9k/common.h
+++ b/drivers/net/wireless/ath/ath9k/common.h
@@ -43,10 +43,9 @@
 	(((x) + ((mul)/2)) / (mul))
 
 int ath9k_cmn_get_hw_crypto_keytype(struct sk_buff *skb);
-void ath9k_cmn_update_ichannel(struct ath9k_channel *ichan,
-			       struct cfg80211_chan_def *chandef);
-struct ath9k_channel *ath9k_cmn_get_curchannel(struct ieee80211_hw *hw,
-					       struct ath_hw *ah);
+struct ath9k_channel *ath9k_cmn_get_channel(struct ieee80211_hw *hw,
+					    struct ath_hw *ah,
+					    struct cfg80211_chan_def *chandef);
 int ath9k_cmn_count_streams(unsigned int chainmask, int max);
 void ath9k_cmn_btcoex_bt_stomp(struct ath_common *common,
 				  enum ath_stomp_type stomp_type);
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index fa71af11fc5e..9a2657fdd9cc 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -906,7 +906,7 @@ static int ath9k_htc_start(struct ieee80211_hw *hw)
 	WMI_CMD(WMI_FLUSH_RECV_CMDID);
 
 	/* setup initial channel */
-	init_channel = ath9k_cmn_get_curchannel(hw, ah);
+	init_channel = ath9k_cmn_get_channel(hw, ah, &hw->conf.chandef);
 
 	ret = ath9k_hw_reset(ah, init_channel, ah->caldata, false);
 	if (ret) {
@@ -1188,9 +1188,7 @@ static int ath9k_htc_config(struct ieee80211_hw *hw, u32 changed)
 		ath_dbg(common, CONFIG, "Set channel: %d MHz\n",
 			curchan->center_freq);
 
-		ath9k_cmn_update_ichannel(&priv->ah->channels[pos],
-					  &hw->conf.chandef);
-
+		ath9k_cmn_get_channel(hw, priv->ah, &hw->conf.chandef);
 		if (ath9k_htc_set_channel(priv, hw, &priv->ah->channels[pos]) < 0) {
 			ath_err(common, "Unable to set channel\n");
 			ret = -EINVAL;
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 2306f5788675..9c145faa997d 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -802,7 +802,7 @@ static void ath9k_init_band_txpower(struct ath_softc *sc, int band)
 		chan = &sband->channels[i];
 		ah->curchan = &ah->channels[chan->hw_value];
 		cfg80211_chandef_create(&chandef, chan, NL80211_CHAN_HT20);
-		ath9k_cmn_update_ichannel(ah->curchan, &chandef);
+		ath9k_cmn_get_channel(sc->hw, ah, &chandef);
 		ath9k_hw_set_txpowerlimit(ah, MAX_RATE_POWER, true);
 	}
 }
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index cdb3b1e10b95..ecbeccdb60bc 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -601,7 +601,7 @@ static int ath9k_start(struct ieee80211_hw *hw)
 	ath9k_ps_wakeup(sc);
 	mutex_lock(&sc->mutex);
 
-	init_channel = ath9k_cmn_get_curchannel(hw, ah);
+	init_channel = ath9k_cmn_get_channel(hw, ah, &hw->conf.chandef);
 
 	/* Reset SERDES registers */
 	ath9k_hw_configpcipowersave(ah, false);
@@ -804,7 +804,7 @@ static void ath9k_stop(struct ieee80211_hw *hw)
 	}
 
 	if (!ah->curchan)
-		ah->curchan = ath9k_cmn_get_curchannel(hw, ah);
+		ah->curchan = ath9k_cmn_get_channel(hw, ah, &hw->conf.chandef);
 
 	ath9k_hw_reset(ah, ah->curchan, ah->caldata, false);
 	ath9k_hw_phy_disable(ah);
@@ -1224,8 +1224,7 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 		ath_update_survey_stats(sc);
 		spin_unlock_irqrestore(&common->cc_lock, flags);
 
-		ath9k_cmn_update_ichannel(&sc->sc_ah->channels[pos],
-					  &conf->chandef);
+		ath9k_cmn_get_channel(hw, ah, &conf->chandef);
 
 		/*
 		 * If the operating channel changes, change the survey in-use flags
-- 
cgit 


From 45c67f6fecd28abdfeca5e6c58d7f5b7278c6362 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 11 Oct 2013 23:30:58 +0200
Subject: ath9k: move channel change code to ath_set_channel

Preparation for adding the scanning state machine to ath9k

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/main.c | 150 ++++++++++++++++++----------------
 1 file changed, 78 insertions(+), 72 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index ecbeccdb60bc..c01831b462a0 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -302,17 +302,91 @@ out:
  * by reseting the chip.  To accomplish this we must first cleanup any pending
  * DMA, then restart stuff.
 */
-static int ath_set_channel(struct ath_softc *sc, struct ieee80211_hw *hw,
-		    struct ath9k_channel *hchan)
+static int ath_set_channel(struct ath_softc *sc, struct cfg80211_chan_def *chandef)
 {
+	struct ath_hw *ah = sc->sc_ah;
+	struct ath_common *common = ath9k_hw_common(ah);
+	struct ieee80211_hw *hw = sc->hw;
+	struct ath9k_channel *hchan;
+	struct ieee80211_channel *chan = chandef->chan;
+	unsigned long flags;
+	bool offchannel;
+	int pos = chan->hw_value;
+	int old_pos = -1;
 	int r;
 
 	if (test_bit(SC_OP_INVALID, &sc->sc_flags))
 		return -EIO;
 
+	offchannel = !!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL);
+
+	if (ah->curchan)
+		old_pos = ah->curchan - &ah->channels[0];
+
+	ath_dbg(common, CONFIG, "Set channel: %d MHz width: %d\n",
+		chan->center_freq, chandef->width);
+
+	/* update survey stats for the old channel before switching */
+	spin_lock_irqsave(&common->cc_lock, flags);
+	ath_update_survey_stats(sc);
+	spin_unlock_irqrestore(&common->cc_lock, flags);
+
+	ath9k_cmn_get_channel(hw, ah, chandef);
+
+	/*
+	 * If the operating channel changes, change the survey in-use flags
+	 * along with it.
+	 * Reset the survey data for the new channel, unless we're switching
+	 * back to the operating channel from an off-channel operation.
+	 */
+	if (!offchannel && sc->cur_survey != &sc->survey[pos]) {
+		if (sc->cur_survey)
+			sc->cur_survey->filled &= ~SURVEY_INFO_IN_USE;
+
+		sc->cur_survey = &sc->survey[pos];
+
+		memset(sc->cur_survey, 0, sizeof(struct survey_info));
+		sc->cur_survey->filled |= SURVEY_INFO_IN_USE;
+	} else if (!(sc->survey[pos].filled & SURVEY_INFO_IN_USE)) {
+		memset(&sc->survey[pos], 0, sizeof(struct survey_info));
+	}
+
+	hchan = &sc->sc_ah->channels[pos];
 	r = ath_reset_internal(sc, hchan);
+	if (r)
+		return r;
 
-	return r;
+	/*
+	 * The most recent snapshot of channel->noisefloor for the old
+	 * channel is only available after the hardware reset. Copy it to
+	 * the survey stats now.
+	 */
+	if (old_pos >= 0)
+		ath_update_survey_nf(sc, old_pos);
+
+	/*
+	 * Enable radar pulse detection if on a DFS channel. Spectral
+	 * scanning and radar detection can not be used concurrently.
+	 */
+	if (hw->conf.radar_enabled) {
+		u32 rxfilter;
+
+		/* set HW specific DFS configuration */
+		ath9k_hw_set_radar_params(ah);
+		rxfilter = ath9k_hw_getrxfilter(ah);
+		rxfilter |= ATH9K_RX_FILTER_PHYRADAR |
+				ATH9K_RX_FILTER_PHYERR;
+		ath9k_hw_setrxfilter(ah, rxfilter);
+		ath_dbg(common, DFS, "DFS enabled at freq %d\n",
+			chan->center_freq);
+	} else {
+		/* perform spectral scan if requested. */
+		if (test_bit(SC_OP_SCANNING, &sc->sc_flags) &&
+			sc->spectral_mode == SPECTRAL_CHANSCAN)
+			ath9k_spectral_scan_trigger(hw);
+	}
+
+	return 0;
 }
 
 static void ath_node_attach(struct ath_softc *sc, struct ieee80211_sta *sta,
@@ -1208,80 +1282,12 @@ static int ath9k_config(struct ieee80211_hw *hw, u32 changed)
 	}
 
 	if ((changed & IEEE80211_CONF_CHANGE_CHANNEL) || reset_channel) {
-		struct ieee80211_channel *curchan = hw->conf.chandef.chan;
-		int pos = curchan->hw_value;
-		int old_pos = -1;
-		unsigned long flags;
-
-		if (ah->curchan)
-			old_pos = ah->curchan - &ah->channels[0];
-
-		ath_dbg(common, CONFIG, "Set channel: %d MHz width: %d\n",
-			curchan->center_freq, hw->conf.chandef.width);
-
-		/* update survey stats for the old channel before switching */
-		spin_lock_irqsave(&common->cc_lock, flags);
-		ath_update_survey_stats(sc);
-		spin_unlock_irqrestore(&common->cc_lock, flags);
-
-		ath9k_cmn_get_channel(hw, ah, &conf->chandef);
-
-		/*
-		 * If the operating channel changes, change the survey in-use flags
-		 * along with it.
-		 * Reset the survey data for the new channel, unless we're switching
-		 * back to the operating channel from an off-channel operation.
-		 */
-		if (!(hw->conf.flags & IEEE80211_CONF_OFFCHANNEL) &&
-		    sc->cur_survey != &sc->survey[pos]) {
-
-			if (sc->cur_survey)
-				sc->cur_survey->filled &= ~SURVEY_INFO_IN_USE;
-
-			sc->cur_survey = &sc->survey[pos];
-
-			memset(sc->cur_survey, 0, sizeof(struct survey_info));
-			sc->cur_survey->filled |= SURVEY_INFO_IN_USE;
-		} else if (!(sc->survey[pos].filled & SURVEY_INFO_IN_USE)) {
-			memset(&sc->survey[pos], 0, sizeof(struct survey_info));
-		}
-
-		if (ath_set_channel(sc, hw, &sc->sc_ah->channels[pos]) < 0) {
+		if (ath_set_channel(sc, &hw->conf.chandef) < 0) {
 			ath_err(common, "Unable to set channel\n");
 			mutex_unlock(&sc->mutex);
 			ath9k_ps_restore(sc);
 			return -EINVAL;
 		}
-
-		/*
-		 * The most recent snapshot of channel->noisefloor for the old
-		 * channel is only available after the hardware reset. Copy it to
-		 * the survey stats now.
-		 */
-		if (old_pos >= 0)
-			ath_update_survey_nf(sc, old_pos);
-
-		/*
-		 * Enable radar pulse detection if on a DFS channel. Spectral
-		 * scanning and radar detection can not be used concurrently.
-		 */
-		if (hw->conf.radar_enabled) {
-			u32 rxfilter;
-
-			/* set HW specific DFS configuration */
-			ath9k_hw_set_radar_params(ah);
-			rxfilter = ath9k_hw_getrxfilter(ah);
-			rxfilter |= ATH9K_RX_FILTER_PHYRADAR |
-				    ATH9K_RX_FILTER_PHYERR;
-			ath9k_hw_setrxfilter(ah, rxfilter);
-			ath_dbg(common, DFS, "DFS enabled at freq %d\n",
-				curchan->center_freq);
-		} else {
-			/* perform spectral scan if requested. */
-			if (test_bit(SC_OP_SCANNING, &sc->sc_flags) &&
-			    sc->spectral_mode == SPECTRAL_CHANSCAN)
-				ath9k_spectral_scan_trigger(hw);
-		}
 	}
 
 	if (changed & IEEE80211_CONF_CHANGE_POWER) {
-- 
cgit 


From 7f329bbb3debf22c272b192d334058554c716d57 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 11 Oct 2013 23:30:59 +0200
Subject: ath9k: remove sc->config.cabqReadyTime

It is not exposed as a configuration option anyway

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ath9k.h | 1 -
 drivers/net/wireless/ath/ath9k/init.c  | 1 -
 drivers/net/wireless/ath/ath9k/mac.h   | 2 --
 drivers/net/wireless/ath/ath9k/xmit.c  | 9 +--------
 4 files changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 83c045549db4..d03b85e57614 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -64,7 +64,6 @@ struct ath_node;
 
 struct ath_config {
 	u16 txpowlimit;
-	u8 cabqReadytime;
 };
 
 /*************************/
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 9c145faa997d..7df728f36330 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -471,7 +471,6 @@ static int ath9k_init_queues(struct ath_softc *sc)
 	sc->beacon.beaconq = ath9k_hw_beaconq_setup(sc->sc_ah);
 	sc->beacon.cabq = ath_txq_setup(sc, ATH9K_TX_QUEUE_CAB, 0);
 
-	sc->config.cabqReadytime = ATH_CABQ_READY_TIME;
 	ath_cabq_update(sc);
 
 	sc->tx.uapsdq = ath_txq_setup(sc, ATH9K_TX_QUEUE_UAPSD, 0);
diff --git a/drivers/net/wireless/ath/ath9k/mac.h b/drivers/net/wireless/ath/ath9k/mac.h
index bfccaceed44e..e3eed81f2439 100644
--- a/drivers/net/wireless/ath/ath9k/mac.h
+++ b/drivers/net/wireless/ath/ath9k/mac.h
@@ -603,8 +603,6 @@ enum ath9k_tx_queue_flags {
 #define ATH9K_TXQ_USE_LOCKOUT_BKOFF_DIS 0x00000001
 
 #define ATH9K_DECOMP_MASK_SIZE     128
-#define ATH9K_READY_TIME_LO_BOUND  50
-#define ATH9K_READY_TIME_HI_BOUND  96
 
 enum ath9k_pkt_type {
 	ATH9K_PKT_TYPE_NORMAL = 0,
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 563f8a9819a6..fc76052c0721 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1695,16 +1695,9 @@ int ath_cabq_update(struct ath_softc *sc)
 	int qnum = sc->beacon.cabq->axq_qnum;
 
 	ath9k_hw_get_txq_props(sc->sc_ah, qnum, &qi);
-	/*
-	 * Ensure the readytime % is within the bounds.
-	 */
-	if (sc->config.cabqReadytime < ATH9K_READY_TIME_LO_BOUND)
-		sc->config.cabqReadytime = ATH9K_READY_TIME_LO_BOUND;
-	else if (sc->config.cabqReadytime > ATH9K_READY_TIME_HI_BOUND)
-		sc->config.cabqReadytime = ATH9K_READY_TIME_HI_BOUND;
 
 	qi.tqi_readyTime = (cur_conf->beacon_interval *
-			    sc->config.cabqReadytime) / 100;
+			    ATH_CABQ_READY_TIME) / 100;
 	ath_txq_update(sc, qnum, &qi);
 
 	return 0;
-- 
cgit 


From c648ecb044a0536be0f40533663eae9f20f1e83e Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 11 Oct 2013 23:31:00 +0200
Subject: ath9k: make ath9k_uses_beacons static

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ath9k.h | 1 -
 drivers/net/wireless/ath/ath9k/main.c  | 2 +-
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index d03b85e57614..5492a0ce0729 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -933,7 +933,6 @@ void ath9k_deinit_device(struct ath_softc *sc);
 void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw);
 void ath9k_reload_chainmask_settings(struct ath_softc *sc);
 
-bool ath9k_uses_beacons(int type);
 void ath9k_spectral_scan_trigger(struct ieee80211_hw *hw);
 int ath9k_spectral_scan_config(struct ieee80211_hw *hw,
 			       enum spectral_mode spectral_mode);
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index c01831b462a0..c42b55c1face 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -897,7 +897,7 @@ static void ath9k_stop(struct ieee80211_hw *hw)
 	ath_dbg(common, CONFIG, "Driver halt\n");
 }
 
-bool ath9k_uses_beacons(int type)
+static bool ath9k_uses_beacons(int type)
 {
 	switch (type) {
 	case NL80211_IFTYPE_AP:
-- 
cgit 


From e4744ec78669926000e47e6ec78b987c0b2f10e9 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Fri, 11 Oct 2013 23:31:01 +0200
Subject: ath9k_hw: remove references to hw->conf

Accessing it to get the current operating channel is racy and in the way
of further channel handling related changes

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ar5008_phy.c |  2 +-
 drivers/net/wireless/ath/ath9k/ar9003_phy.c |  2 +-
 drivers/net/wireless/ath/ath9k/calib.c      |  8 +++-----
 drivers/net/wireless/ath/ath9k/hw.c         | 21 +++++++++------------
 drivers/net/wireless/ath/ath9k/hw.h         |  2 +-
 5 files changed, 15 insertions(+), 20 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar5008_phy.c b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
index b197bf2047e7..ff415e863ee9 100644
--- a/drivers/net/wireless/ath/ath9k/ar5008_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar5008_phy.c
@@ -672,7 +672,7 @@ static void ar5008_hw_set_channel_regs(struct ath_hw *ah,
 	}
 	REG_WRITE(ah, AR_PHY_TURBO, phymode);
 
-	ath9k_hw_set11nmac2040(ah);
+	ath9k_hw_set11nmac2040(ah, chan);
 
 	ENABLE_REGWRITE_BUFFER(ah);
 
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index 312c868f05be..f3adafd33704 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -564,7 +564,7 @@ static void ar9003_hw_set_channel_regs(struct ath_hw *ah,
 	REG_WRITE(ah, AR_PHY_GEN_CTRL, phymode);
 
 	/* Configure MAC for 20/40 operation */
-	ath9k_hw_set11nmac2040(ah);
+	ath9k_hw_set11nmac2040(ah, chan);
 
 	/* global transmit timeout (25 TUs default)*/
 	REG_WRITE(ah, AR_GTXTO, 25 << AR_GTXTO_TIMEOUT_LIMIT_S);
diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c
index fe23026d82cd..d8db74b0ef66 100644
--- a/drivers/net/wireless/ath/ath9k/calib.c
+++ b/drivers/net/wireless/ath/ath9k/calib.c
@@ -186,7 +186,6 @@ void ath9k_hw_reset_calibration(struct ath_hw *ah,
 bool ath9k_hw_reset_calvalid(struct ath_hw *ah)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
-	struct ieee80211_conf *conf = &common->hw->conf;
 	struct ath9k_cal_list *currCal = ah->cal_list_curr;
 
 	if (!ah->caldata)
@@ -208,7 +207,7 @@ bool ath9k_hw_reset_calvalid(struct ath_hw *ah)
 		return true;
 
 	ath_dbg(common, CALIBRATE, "Resetting Cal %d state for channel %u\n",
-		currCal->calData->calType, conf->chandef.chan->center_freq);
+		currCal->calData->calType, ah->curchan->chan->center_freq);
 
 	ah->caldata->CalValid &= ~currCal->calData->calType;
 	currCal->calState = CAL_WAITING;
@@ -242,7 +241,6 @@ void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan)
 	int32_t val;
 	u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
 	struct ath_common *common = ath9k_hw_common(ah);
-	struct ieee80211_conf *conf = &common->hw->conf;
 	s16 default_nf = ath9k_hw_get_default_nf(ah, chan);
 
 	if (ah->caldata)
@@ -252,7 +250,7 @@ void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan)
 		if (chainmask & (1 << i)) {
 			s16 nfval;
 
-			if ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf))
+			if ((i >= AR5416_MAX_CHAINS) && !IS_CHAN_HT40(chan))
 				continue;
 
 			if (h)
@@ -314,7 +312,7 @@ void ath9k_hw_loadnf(struct ath_hw *ah, struct ath9k_channel *chan)
 	ENABLE_REGWRITE_BUFFER(ah);
 	for (i = 0; i < NUM_NF_READINGS; i++) {
 		if (chainmask & (1 << i)) {
-			if ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf))
+			if ((i >= AR5416_MAX_CHAINS) && !IS_CHAN_HT40(chan))
 				continue;
 
 			val = REG_READ(ah, ah->nf_regs[i]);
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index bc7382fbcf66..dcdbab48709e 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -130,29 +130,29 @@ void ath9k_debug_sync_cause(struct ath_common *common, u32 sync_cause)
 
 static void ath9k_hw_set_clockrate(struct ath_hw *ah)
 {
-	struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
 	struct ath_common *common = ath9k_hw_common(ah);
+	struct ath9k_channel *chan = ah->curchan;
 	unsigned int clockrate;
 
 	/* AR9287 v1.3+ uses async FIFO and runs the MAC at 117 MHz */
 	if (AR_SREV_9287(ah) && AR_SREV_9287_13_OR_LATER(ah))
 		clockrate = 117;
-	else if (!ah->curchan) /* should really check for CCK instead */
+	else if (!chan) /* should really check for CCK instead */
 		clockrate = ATH9K_CLOCK_RATE_CCK;
-	else if (conf->chandef.chan->band == IEEE80211_BAND_2GHZ)
+	else if (IS_CHAN_2GHZ(chan))
 		clockrate = ATH9K_CLOCK_RATE_2GHZ_OFDM;
 	else if (ah->caps.hw_caps & ATH9K_HW_CAP_FASTCLOCK)
 		clockrate = ATH9K_CLOCK_FAST_RATE_5GHZ_OFDM;
 	else
 		clockrate = ATH9K_CLOCK_RATE_5GHZ_OFDM;
 
-	if (conf_is_ht40(conf))
+	if (IS_CHAN_HT40(chan))
 		clockrate *= 2;
 
 	if (ah->curchan) {
-		if (IS_CHAN_HALF_RATE(ah->curchan))
+		if (IS_CHAN_HALF_RATE(chan))
 			clockrate /= 2;
-		if (IS_CHAN_QUARTER_RATE(ah->curchan))
+		if (IS_CHAN_QUARTER_RATE(chan))
 			clockrate /= 4;
 	}
 
@@ -1038,7 +1038,6 @@ static bool ath9k_hw_set_global_txtimeout(struct ath_hw *ah, u32 tu)
 void ath9k_hw_init_global_settings(struct ath_hw *ah)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
-	struct ieee80211_conf *conf = &common->hw->conf;
 	const struct ath9k_channel *chan = ah->curchan;
 	int acktimeout, ctstimeout, ack_offset = 0;
 	int slottime;
@@ -1113,8 +1112,7 @@ void ath9k_hw_init_global_settings(struct ath_hw *ah)
 	 * BA frames in some implementations, but it has been found to fix ACK
 	 * timeout issues in other cases as well.
 	 */
-	if (conf->chandef.chan &&
-	    conf->chandef.chan->band == IEEE80211_BAND_2GHZ &&
+	if (IS_CHAN_2GHZ(chan) &&
 	    !IS_CHAN_HALF_RATE(chan) && !IS_CHAN_QUARTER_RATE(chan)) {
 		acktimeout += 64 - sifstime - ah->slottime;
 		ctstimeout += 48 - sifstime - ah->slottime;
@@ -2946,12 +2944,11 @@ void ath9k_hw_set_tsfadjust(struct ath_hw *ah, bool set)
 }
 EXPORT_SYMBOL(ath9k_hw_set_tsfadjust);
 
-void ath9k_hw_set11nmac2040(struct ath_hw *ah)
+void ath9k_hw_set11nmac2040(struct ath_hw *ah, struct ath9k_channel *chan)
 {
-	struct ieee80211_conf *conf = &ath9k_hw_common(ah)->hw->conf;
 	u32 macmode;
 
-	if (conf_is_ht40(conf) && !ah->config.cwm_ignore_extcca)
+	if (IS_CHAN_HT40(chan) && !ah->config.cwm_ignore_extcca)
 		macmode = AR_2040_JOINED_RX_CLEAR;
 	else
 		macmode = 0;
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 9d04d67843b2..81fcbc756122 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -1003,7 +1003,7 @@ void ath9k_hw_reset_tsf(struct ath_hw *ah);
 void ath9k_hw_set_tsfadjust(struct ath_hw *ah, bool set);
 void ath9k_hw_init_global_settings(struct ath_hw *ah);
 u32 ar9003_get_pll_sqsum_dvc(struct ath_hw *ah);
-void ath9k_hw_set11nmac2040(struct ath_hw *ah);
+void ath9k_hw_set11nmac2040(struct ath_hw *ah, struct ath9k_channel *chan);
 void ath9k_hw_beaconinit(struct ath_hw *ah, u32 next_beacon, u32 beacon_period);
 void ath9k_hw_set_sta_beacon_timers(struct ath_hw *ah,
 				    const struct ath9k_beacon_state *bs);
-- 
cgit 


From 448a71cc747d5d18a126a1214bf4db3ec1ea1e05 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Fri, 11 Oct 2013 18:33:04 -0700
Subject: mwifiex: use alloc_workqueue() function

It replaces deprecated create_workqueue().

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/mwifiex/main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index fd778337deee..408f307694aa 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -880,7 +880,9 @@ mwifiex_add_card(void *card, struct semaphore *sem,
 	adapter->cmd_wait_q.status = 0;
 	adapter->scan_wait_q_woken = false;
 
-	adapter->workqueue = create_workqueue("MWIFIEX_WORK_QUEUE");
+	adapter->workqueue =
+		alloc_workqueue("MWIFIEX_WORK_QUEUE",
+				WQ_HIGHPRI | WQ_MEM_RECLAIM | WQ_UNBOUND, 1);
 	if (!adapter->workqueue)
 		goto err_kmalloc;
 
-- 
cgit 


From 7122e660027f806c2d01b3db6e322aff98183e75 Mon Sep 17 00:00:00 2001
From: Kevin Lo <kevlo@kevlo.org>
Date: Sat, 12 Oct 2013 23:25:23 +0800
Subject: rt2x00: rt2800lib: fix RF registers for RT5390/RT5392

Update rf registers to use the same values that the MediaTek/Ralink
reference driver DPO_RT5572_LinuxSTA_2.6.1.3_20121022 uses.

References:
  RF5390RegTable in chips/rt5390.c
  RF5392RegTable in chips/rt5390.c

Tested on TP-Link TL-WN727N and D-Link DWA-140 Rev.b3 usb wifi dongles.

Signed-off-by: Kevin Lo <kevlo@kevlo.org>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800lib.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 78b31e308060..cd99b1560810 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -6475,7 +6475,7 @@ static void rt2800_init_rfcsr_5390(struct rt2x00_dev *rt2x00dev)
 	rt2800_rfcsr_write(rt2x00dev, 28, 0x00);
 	rt2800_rfcsr_write(rt2x00dev, 29, 0x10);
 
-	rt2800_rfcsr_write(rt2x00dev, 30, 0x00);
+	rt2800_rfcsr_write(rt2x00dev, 30, 0x10);
 	rt2800_rfcsr_write(rt2x00dev, 31, 0x80);
 	rt2800_rfcsr_write(rt2x00dev, 32, 0x80);
 	rt2800_rfcsr_write(rt2x00dev, 33, 0x00);
@@ -6513,7 +6513,7 @@ static void rt2800_init_rfcsr_5390(struct rt2x00_dev *rt2x00dev)
 	rt2800_rfcsr_write(rt2x00dev, 56, 0x22);
 	rt2800_rfcsr_write(rt2x00dev, 57, 0x80);
 	rt2800_rfcsr_write(rt2x00dev, 58, 0x7f);
-	rt2800_rfcsr_write(rt2x00dev, 59, 0x63);
+	rt2800_rfcsr_write(rt2x00dev, 59, 0x8f);
 
 	rt2800_rfcsr_write(rt2x00dev, 60, 0x45);
 	if (rt2x00_rt_rev_gte(rt2x00dev, RT5390, REV_RT5390F))
@@ -6533,7 +6533,6 @@ static void rt2800_init_rfcsr_5392(struct rt2x00_dev *rt2x00dev)
 	rt2800_rf_init_calibration(rt2x00dev, 2);
 
 	rt2800_rfcsr_write(rt2x00dev, 1, 0x17);
-	rt2800_rfcsr_write(rt2x00dev, 2, 0x80);
 	rt2800_rfcsr_write(rt2x00dev, 3, 0x88);
 	rt2800_rfcsr_write(rt2x00dev, 5, 0x10);
 	rt2800_rfcsr_write(rt2x00dev, 6, 0xe0);
-- 
cgit 


From b6b561c31d51db3dec0cb55412a5d7a1a2397521 Mon Sep 17 00:00:00 2001
From: Kevin Lo <kevlo@kevlo.org>
Date: Mon, 14 Oct 2013 10:05:45 +0800
Subject: rt2x00: rt2800lib: remove duplicate rf_vals for RF3053

lready have rf_vals_3x with same values.  Hence rf_vals_3053 is removed
in this patch.

Signed-off-by: Kevin Lo <kevlo@kevlo.org>
Acked-by: Paul Menzel <paulepanter@users.sourceforge.net>
Acked-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800lib.c | 75 ++-------------------------------
 1 file changed, 3 insertions(+), 72 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index cd99b1560810..aa8789423937 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -7246,7 +7246,7 @@ static const struct rf_channel rf_vals[] = {
 
 /*
  * RF value list for rt3xxx
- * Supports: 2.4 GHz (all) & 5.2 GHz (RF3052)
+ * Supports: 2.4 GHz (all) & 5.2 GHz (RF3052 & RF3053)
  */
 static const struct rf_channel rf_vals_3x[] = {
 	{1,  241, 2, 2 },
@@ -7442,72 +7442,6 @@ static const struct rf_channel rf_vals_5592_xtal40[] = {
 	{196, 83, 0, 12, 1},
 };
 
-static const struct rf_channel rf_vals_3053[] = {
-	/* Channel, N, R, K */
-	{1, 241, 2, 2},
-	{2, 241, 2, 7},
-	{3, 242, 2, 2},
-	{4, 242, 2, 7},
-	{5, 243, 2, 2},
-	{6, 243, 2, 7},
-	{7, 244, 2, 2},
-	{8, 244, 2, 7},
-	{9, 245, 2, 2},
-	{10, 245, 2, 7},
-	{11, 246, 2, 2},
-	{12, 246, 2, 7},
-	{13, 247, 2, 2},
-	{14, 248, 2, 4},
-
-	{36, 0x56, 0, 4},
-	{38, 0x56, 0, 6},
-	{40, 0x56, 0, 8},
-	{44, 0x57, 0, 0},
-	{46, 0x57, 0, 2},
-	{48, 0x57, 0, 4},
-	{52, 0x57, 0, 8},
-	{54, 0x57, 0, 10},
-	{56, 0x58, 0, 0},
-	{60, 0x58, 0, 4},
-	{62, 0x58, 0, 6},
-	{64, 0x58, 0, 8},
-
-	{100, 0x5B, 0, 8},
-	{102, 0x5B, 0, 10},
-	{104, 0x5C, 0, 0},
-	{108, 0x5C, 0, 4},
-	{110, 0x5C, 0, 6},
-	{112, 0x5C, 0, 8},
-
-	/* NOTE: Channel 114 has been removed intentionally.
-	 * The EEPROM contains no TX power values for that,
-	 * and it is disabled in the vendor driver as well.
-	 */
-
-	{116, 0x5D, 0, 0},
-	{118, 0x5D, 0, 2},
-	{120, 0x5D, 0, 4},
-	{124, 0x5D, 0, 8},
-	{126, 0x5D, 0, 10},
-	{128, 0x5E, 0, 0},
-	{132, 0x5E, 0, 4},
-	{134, 0x5E, 0, 6},
-	{136, 0x5E, 0, 8},
-	{140, 0x5F, 0, 0},
-
-	{149, 0x5F, 0, 9},
-	{151, 0x5F, 0, 11},
-	{153, 0x60, 0, 1},
-	{157, 0x60, 0, 5},
-	{159, 0x60, 0, 7},
-	{161, 0x60, 0, 9},
-	{165, 0x61, 0, 1},
-	{167, 0x61, 0, 3},
-	{169, 0x61, 0, 5},
-	{171, 0x61, 0, 7},
-	{173, 0x61, 0, 9},
-};
-
 static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 {
 	struct hw_mode_spec *spec = &rt2x00dev->spec;
@@ -7597,14 +7531,11 @@ static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 		   rt2x00_rf(rt2x00dev, RF5392)) {
 		spec->num_channels = 14;
 		spec->channels = rf_vals_3x;
-	} else if (rt2x00_rf(rt2x00dev, RF3052)) {
+	} else if (rt2x00_rf(rt2x00dev, RF3052) ||
+		   rt2x00_rf(rt2x00dev, RF3053)) {
 		spec->supported_bands |= SUPPORT_BAND_5GHZ;
 		spec->num_channels = ARRAY_SIZE(rf_vals_3x);
 		spec->channels = rf_vals_3x;
-	} else if (rt2x00_rf(rt2x00dev, RF3053)) {
-		spec->supported_bands |= SUPPORT_BAND_5GHZ;
-		spec->num_channels = ARRAY_SIZE(rf_vals_3053);
-		spec->channels = rf_vals_3053;
 	} else if (rt2x00_rf(rt2x00dev, RF5592)) {
 		spec->supported_bands |= SUPPORT_BAND_5GHZ;
 
-- 
cgit 


From facfbc49b4815a05c94621a1f0ec549cbd95a760 Mon Sep 17 00:00:00 2001
From: George Cherian <george.cherian@ti.com>
Date: Mon, 14 Oct 2013 18:06:24 +0530
Subject: ARM: OMAP2+: hwmod: Add USB hwmod data for AM437x.

Add hwmod for USBSS and the OCP2SCP for AM437x.
AM437x has got 2 instances of USBSS.

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/omap_hwmod_43xx_data.c | 105 +++++++++++++++++++++++++++++
 arch/arm/mach-omap2/prcm43xx.h             |   4 ++
 2 files changed, 109 insertions(+)

diff --git a/arch/arm/mach-omap2/omap_hwmod_43xx_data.c b/arch/arm/mach-omap2/omap_hwmod_43xx_data.c
index 6500d43defc5..a58024d703ca 100644
--- a/arch/arm/mach-omap2/omap_hwmod_43xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_43xx_data.c
@@ -316,6 +316,79 @@ static struct omap_hwmod am43xx_gpio5_hwmod = {
 	.dev_attr	= &gpio_dev_attr,
 };
 
+static struct omap_hwmod_class am43xx_ocp2scp_hwmod_class = {
+	.name	= "ocp2scp",
+};
+
+static struct omap_hwmod am43xx_ocp2scp0_hwmod = {
+	.name		= "ocp2scp0",
+	.class		= &am43xx_ocp2scp_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+	.prcm = {
+		.omap4 = {
+			.clkctrl_offs = AM43XX_CM_PER_USBPHYOCP2SCP0_CLKCTRL_OFFSET,
+			.modulemode   = MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+static struct omap_hwmod am43xx_ocp2scp1_hwmod = {
+	.name		= "ocp2scp1",
+	.class		= &am43xx_ocp2scp_hwmod_class,
+	.clkdm_name	= "l4ls_clkdm",
+	.main_clk	= "l4ls_gclk",
+	.prcm = {
+		.omap4 = {
+			.clkctrl_offs	= AM43XX_CM_PER_USBPHYOCP2SCP1_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+static struct omap_hwmod_class_sysconfig am43xx_usb_otg_ss_sysc = {
+	.rev_offs	= 0x0000,
+	.sysc_offs	= 0x0010,
+	.sysc_flags	= (SYSC_HAS_DMADISABLE | SYSC_HAS_MIDLEMODE |
+				SYSC_HAS_SIDLEMODE),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
+				SIDLE_SMART_WKUP | MSTANDBY_FORCE |
+				MSTANDBY_NO | MSTANDBY_SMART |
+				MSTANDBY_SMART_WKUP),
+	.sysc_fields	= &omap_hwmod_sysc_type2,
+};
+
+static struct omap_hwmod_class am43xx_usb_otg_ss_hwmod_class = {
+	.name	= "usb_otg_ss",
+	.sysc	= &am43xx_usb_otg_ss_sysc,
+};
+
+static struct omap_hwmod am43xx_usb_otg_ss0_hwmod = {
+	.name		= "usb_otg_ss0",
+	.class		= &am43xx_usb_otg_ss_hwmod_class,
+	.clkdm_name	= "l3s_clkdm",
+	.main_clk	= "l3s_gclk",
+	.prcm = {
+		.omap4 = {
+			.clkctrl_offs	= AM43XX_CM_PER_USB_OTG_SS0_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
+static struct omap_hwmod am43xx_usb_otg_ss1_hwmod = {
+	.name		= "usb_otg_ss1",
+	.class		= &am43xx_usb_otg_ss_hwmod_class,
+	.clkdm_name	= "l3s_clkdm",
+	.main_clk	= "l3s_gclk",
+	.prcm = {
+		.omap4 = {
+			.clkctrl_offs	= AM43XX_CM_PER_USB_OTG_SS1_CLKCTRL_OFFSET,
+			.modulemode	= MODULEMODE_SWCTRL,
+		},
+	},
+};
+
 /* Interfaces */
 static struct omap_hwmod_ocp_if am43xx_l3_main__l4_hs = {
 	.master		= &am33xx_l3_main_hwmod,
@@ -520,6 +593,34 @@ static struct omap_hwmod_ocp_if am43xx_l4_ls__gpio5 = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
+static struct omap_hwmod_ocp_if am43xx_l4_ls__ocp2scp0 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am43xx_ocp2scp0_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l4_ls__ocp2scp1 = {
+	.master		= &am33xx_l4_ls_hwmod,
+	.slave		= &am43xx_ocp2scp1_hwmod,
+	.clk		= "l4ls_gclk",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l3_s__usbotgss0 = {
+	.master         = &am33xx_l3_s_hwmod,
+	.slave          = &am43xx_usb_otg_ss0_hwmod,
+	.clk            = "l3s_gclk",
+	.user           = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+static struct omap_hwmod_ocp_if am43xx_l3_s__usbotgss1 = {
+	.master         = &am33xx_l3_s_hwmod,
+	.slave          = &am43xx_usb_otg_ss1_hwmod,
+	.clk            = "l3s_gclk",
+	.user           = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
 static struct omap_hwmod_ocp_if *am43xx_hwmod_ocp_ifs[] __initdata = {
 	&am33xx_l4_wkup__synctimer,
 	&am43xx_l4_ls__timer8,
@@ -608,6 +709,10 @@ static struct omap_hwmod_ocp_if *am43xx_hwmod_ocp_ifs[] __initdata = {
 	&am33xx_cpgmac0__mdio,
 	&am33xx_l3_main__sha0,
 	&am33xx_l3_main__aes0,
+	&am43xx_l4_ls__ocp2scp0,
+	&am43xx_l4_ls__ocp2scp1,
+	&am43xx_l3_s__usbotgss0,
+	&am43xx_l3_s__usbotgss1,
 	NULL,
 };
 
diff --git a/arch/arm/mach-omap2/prcm43xx.h b/arch/arm/mach-omap2/prcm43xx.h
index f0636eca7a6e..0d66a6e81efa 100644
--- a/arch/arm/mach-omap2/prcm43xx.h
+++ b/arch/arm/mach-omap2/prcm43xx.h
@@ -137,5 +137,9 @@
 #define AM43XX_CM_PER_SPI4_CLKCTRL_OFFSET		0x0520
 #define AM43XX_CM_PER_GPIO4_CLKCTRL_OFFSET		0x0490
 #define AM43XX_CM_PER_GPIO5_CLKCTRL_OFFSET		0x0498
+#define AM43XX_CM_PER_USB_OTG_SS0_CLKCTRL_OFFSET	0x0260
+#define AM43XX_CM_PER_USBPHYOCP2SCP0_CLKCTRL_OFFSET	0x05B8
+#define AM43XX_CM_PER_USB_OTG_SS1_CLKCTRL_OFFSET        0x0268
+#define AM43XX_CM_PER_USBPHYOCP2SCP1_CLKCTRL_OFFSET	0x05C0
 
 #endif
-- 
cgit 


From b35c5009bbf619d8885b4b3c8b102d09002acfe5 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 11 Oct 2013 22:16:21 -0400
Subject: USB: EHCI: create per-TT bandwidth tables

This patch continues the scheduling changes in ehci-hcd by adding a
table to store the bandwidth allocation below each TT.  This will
speed up the scheduling code, as it will no longer need to read
through the entire schedule to compute the bandwidth currently in use.

Properly speaking, the FS/LS budget calculations should be done in
terms of full-speed bytes per microframe, as described in the USB-2
spec.  However the driver currently uses microseconds per microframe,
and the scheduling code isn't robust enough at this point to change
over.  For the time being, we leave the calculations as they are.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-dbg.c   |  48 +++++++
 drivers/usb/host/ehci-hcd.c   |  22 ++++
 drivers/usb/host/ehci-sched.c | 294 ++++++++++++++++++++++++++++++------------
 drivers/usb/host/ehci.h       |  33 +++++
 4 files changed, 312 insertions(+), 85 deletions(-)

diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c
index 5bbfb1f9929c..4a9c2edbcb2b 100644
--- a/drivers/usb/host/ehci-dbg.c
+++ b/drivers/usb/host/ehci-dbg.c
@@ -536,10 +536,14 @@ static ssize_t fill_async_buffer(struct debug_buffer *buf)
 static ssize_t fill_bandwidth_buffer(struct debug_buffer *buf)
 {
 	struct ehci_hcd		*ehci;
+	struct ehci_tt		*tt;
+	struct ehci_per_sched	*ps;
 	unsigned		temp, size;
 	char			*next;
 	unsigned		i;
 	u8			*bw;
+	u16			*bf;
+	u8			budget[EHCI_BANDWIDTH_SIZE];
 
 	ehci = hcd_to_ehci(bus_to_hcd(buf->bus));
 	next = buf->output_buf;
@@ -563,6 +567,50 @@ static ssize_t fill_bandwidth_buffer(struct debug_buffer *buf)
 		size -= temp;
 		next += temp;
 	}
+
+	/* Dump all the FS/LS tables */
+	list_for_each_entry(tt, &ehci->tt_list, tt_list) {
+		temp = scnprintf(next, size,
+				"\nTT %s port %d  FS/LS bandwidth allocation (us per frame)\n",
+				dev_name(&tt->usb_tt->hub->dev),
+				tt->tt_port + !!tt->usb_tt->multi);
+		size -= temp;
+		next += temp;
+
+		bf = tt->bandwidth;
+		temp = scnprintf(next, size,
+				"  %5u%5u%5u%5u%5u%5u%5u%5u\n",
+				bf[0], bf[1], bf[2], bf[3],
+					bf[4], bf[5], bf[6], bf[7]);
+		size -= temp;
+		next += temp;
+
+		temp = scnprintf(next, size,
+				"FS/LS budget (us per microframe)\n");
+		size -= temp;
+		next += temp;
+		compute_tt_budget(budget, tt);
+		for (i = 0; i < EHCI_BANDWIDTH_SIZE; i += 8) {
+			bw = &budget[i];
+			temp = scnprintf(next, size,
+					"%2u: %4u%4u%4u%4u%4u%4u%4u%4u\n",
+					i, bw[0], bw[1], bw[2], bw[3],
+						bw[4], bw[5], bw[6], bw[7]);
+			size -= temp;
+			next += temp;
+		}
+		list_for_each_entry(ps, &tt->ps_list, ps_list) {
+			temp = scnprintf(next, size,
+					"%s ep %02x:  %4u @ %2u.%u+%u mask %04x\n",
+					dev_name(&ps->udev->dev),
+					ps->ep->desc.bEndpointAddress,
+					ps->tt_usecs,
+					ps->bw_phase, ps->phase_uf,
+					ps->bw_period, ps->cs_mask);
+			size -= temp;
+			next += temp;
+		}
+	}
 	spin_unlock_irq(&ehci->lock);
 
 	return next - buf->output_buf;
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 398e8fa3032f..e66706aa9f0c 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -110,6 +110,9 @@ MODULE_PARM_DESC (ignore_oc, "ignore bogus hardware overcurrent indications");
 #include "ehci.h"
 #include "pci-quirks.h"
 
+static void compute_tt_budget(u8 budget_table[EHCI_BANDWIDTH_SIZE],
+		struct ehci_tt *tt);
+
 /*
  * The MosChip MCS9990 controller updates its microframe counter
  * a little before the frame counter, and occasionally we will read
@@ -484,6 +487,7 @@ static int ehci_init(struct usb_hcd *hcd)
 	INIT_LIST_HEAD(&ehci->intr_qh_list);
 	INIT_LIST_HEAD(&ehci->cached_itd_list);
 	INIT_LIST_HEAD(&ehci->cached_sitd_list);
+	INIT_LIST_HEAD(&ehci->tt_list);
 
 	if (HCC_PGM_FRAMELISTLEN(hcc_params)) {
 		/* periodic schedule size can be smaller than default */
@@ -1051,6 +1055,19 @@ static int ehci_get_frame (struct usb_hcd *hcd)
 
 /*-------------------------------------------------------------------------*/
 
+/* Device addition and removal */
+
+static void ehci_remove_device(struct usb_hcd *hcd, struct usb_device *udev)
+{
+	struct ehci_hcd		*ehci = hcd_to_ehci(hcd);
+
+	spin_lock_irq(&ehci->lock);
+	drop_tt(udev);
+	spin_unlock_irq(&ehci->lock);
+}
+
+/*-------------------------------------------------------------------------*/
+
 #ifdef	CONFIG_PM
 
 /* suspend/resume, section 4.3 */
@@ -1194,6 +1211,11 @@ static const struct hc_driver ehci_hc_driver = {
 	.bus_resume =		ehci_bus_resume,
 	.relinquish_port =	ehci_relinquish_port,
 	.port_handed_over =	ehci_port_handed_over,
+
+	/*
+	 * device support
+	 */
+	.free_dev =		ehci_remove_device,
 };
 
 void ehci_init_driver(struct hc_driver *drv,
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 790a64c0da5c..b5f957d322e3 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -106,6 +106,103 @@ static void periodic_unlink (struct ehci_hcd *ehci, unsigned frame, void *ptr)
 		*hw_p = ehci->dummy->qh_dma;
 }
 
+/*-------------------------------------------------------------------------*/
+
+/* Bandwidth and TT management */
+
+/* Find the TT data structure for this device; create it if necessary */
+static struct ehci_tt *find_tt(struct usb_device *udev)
+{
+	struct usb_tt		*utt = udev->tt;
+	struct ehci_tt		*tt, **tt_index, **ptt;
+	unsigned		port;
+	bool			allocated_index = false;
+
+	if (!utt)
+		return NULL;		/* Not below a TT */
+
+	/*
+	 * Find/create our data structure.
+	 * For hubs with a single TT, we get it directly.
+	 * For hubs with multiple TTs, there's an extra level of pointers.
+	 */
+	tt_index = NULL;
+	if (utt->multi) {
+		tt_index = utt->hcpriv;
+		if (!tt_index) {		/* Create the index array */
+			tt_index = kzalloc(utt->hub->maxchild *
+					sizeof(*tt_index), GFP_ATOMIC);
+			if (!tt_index)
+				return ERR_PTR(-ENOMEM);
+			utt->hcpriv = tt_index;
+			allocated_index = true;
+		}
+		port = udev->ttport - 1;
+		ptt = &tt_index[port];
+	} else {
+		port = 0;
+		ptt = (struct ehci_tt **) &utt->hcpriv;
+	}
+
+	tt = *ptt;
+	if (!tt) {				/* Create the ehci_tt */
+		struct ehci_hcd		*ehci =
+				hcd_to_ehci(bus_to_hcd(udev->bus));
+
+		tt = kzalloc(sizeof(*tt), GFP_ATOMIC);
+		if (!tt) {
+			if (allocated_index) {
+				utt->hcpriv = NULL;
+				kfree(tt_index);
+			}
+			return ERR_PTR(-ENOMEM);
+		}
+		list_add_tail(&tt->tt_list, &ehci->tt_list);
+		INIT_LIST_HEAD(&tt->ps_list);
+		tt->usb_tt = utt;
+		tt->tt_port = port;
+		*ptt = tt;
+	}
+
+	return tt;
+}
+
+/* Release the TT above udev, if it's not in use */
+static void drop_tt(struct usb_device *udev)
+{
+	struct usb_tt		*utt = udev->tt;
+	struct ehci_tt		*tt, **tt_index, **ptt;
+	int			cnt, i;
+
+	if (!utt || !utt->hcpriv)
+		return;		/* Not below a TT, or never allocated */
+
+	cnt = 0;
+	if (utt->multi) {
+		tt_index = utt->hcpriv;
+		ptt = &tt_index[udev->ttport - 1];
+
+		/* How many entries are left in tt_index? */
+		for (i = 0; i < utt->hub->maxchild; ++i)
+			cnt += !!tt_index[i];
+	} else {
+		tt_index = NULL;
+		ptt = (struct ehci_tt **) &utt->hcpriv;
+	}
+
+	tt = *ptt;
+	if (!tt || !list_empty(&tt->ps_list))
+		return;		/* never allocated, or still in use */
+
+	list_del(&tt->tt_list);
+	*ptt = NULL;
+	kfree(tt);
+	if (cnt == 1) {
+		utt->hcpriv = NULL;
+		kfree(tt_index);
+	}
+}
+
 static void bandwidth_dbg(struct ehci_hcd *ehci, int sign, char *type,
 		struct ehci_per_sched *ps)
 {
@@ -125,6 +222,8 @@ static void reserve_release_intr_bandwidth(struct ehci_hcd *ehci,
 	unsigned		i, j, m;
 	int			usecs = qh->ps.usecs;
 	int			c_usecs = qh->ps.c_usecs;
+	int			tt_usecs = qh->ps.tt_usecs;
+	struct ehci_tt		*tt;
 
 	if (qh->ps.phase == NO_FRAME)	/* Bandwidth wasn't reserved */
 		return;
@@ -135,6 +234,7 @@ static void reserve_release_intr_bandwidth(struct ehci_hcd *ehci,
 	if (sign < 0) {		/* Release bandwidth */
 		usecs = -usecs;
 		c_usecs = -c_usecs;
+		tt_usecs = -tt_usecs;
 	}
 
 	/* Entire transaction (high speed) or start-split (full/low speed) */
@@ -153,11 +253,60 @@ static void reserve_release_intr_bandwidth(struct ehci_hcd *ehci,
 			}
 		}
 	}
+
+	/* FS/LS bus bandwidth */
+	if (tt_usecs) {
+		tt = find_tt(qh->ps.udev);
+		if (sign > 0)
+			list_add_tail(&qh->ps.ps_list, &tt->ps_list);
+		else
+			list_del(&qh->ps.ps_list);
+
+		for (i = start_uf >> 3; i < EHCI_BANDWIDTH_FRAMES;
+				i += qh->ps.bw_period)
+			tt->bandwidth[i] += tt_usecs;
+	}
 }
 
 /*-------------------------------------------------------------------------*/
 
-static int same_tt (struct usb_device *dev1, struct usb_device *dev2)
+static void compute_tt_budget(u8 budget_table[EHCI_BANDWIDTH_SIZE],
+		struct ehci_tt *tt)
+{
+	struct ehci_per_sched	*ps;
+	unsigned		uframe, uf, x;
+	u8			*budget_line;
+
+	if (!tt)
+		return;
+	memset(budget_table, 0, EHCI_BANDWIDTH_SIZE);
+
+	/* Add up the contributions from all the endpoints using this TT */
+	list_for_each_entry(ps, &tt->ps_list, ps_list) {
+		for (uframe = ps->bw_phase << 3; uframe < EHCI_BANDWIDTH_SIZE;
+				uframe += ps->bw_uperiod) {
+			budget_line = &budget_table[uframe];
+			x = ps->tt_usecs;
+
+			/* propagate the time forward */
+			for (uf = ps->phase_uf; uf < 8; ++uf) {
+				x += budget_line[uf];
+
+				/* Each microframe lasts 125 us */
+				if (x <= 125) {
+					budget_line[uf] = x;
+					break;
+				} else {
+					budget_line[uf] = 125;
+					x -= 125;
+				}
+			}
+		}
+	}
+}
+
+static int __maybe_unused same_tt(struct usb_device *dev1,
+		struct usb_device *dev2)
 {
 	if (!dev1->tt || !dev2->tt)
 		return 0;
@@ -205,68 +354,6 @@ static inline void carryover_tt_bandwidth(unsigned short tt_usecs[8])
 	}
 }
 
-/* How many of the tt's periodic downstream 1000 usecs are allocated?
- *
- * While this measures the bandwidth in terms of usecs/uframe,
- * the low/fullspeed bus has no notion of uframes, so any particular
- * low/fullspeed transfer can "carry over" from one uframe to the next,
- * since the TT just performs downstream transfers in sequence.
- *
- * For example two separate 100 usec transfers can start in the same uframe,
- * and the second one would "carry over" 75 usecs into the next uframe.
- */
-static void
-periodic_tt_usecs (
-	struct ehci_hcd *ehci,
-	struct usb_device *dev,
-	unsigned frame,
-	unsigned short tt_usecs[8]
-)
-{
-	__hc32			*hw_p = &ehci->periodic [frame];
-	union ehci_shadow	*q = &ehci->pshadow [frame];
-	unsigned char		uf;
-
-	memset(tt_usecs, 0, 16);
-
-	while (q->ptr) {
-		switch (hc32_to_cpu(ehci, Q_NEXT_TYPE(ehci, *hw_p))) {
-		case Q_TYPE_ITD:
-			hw_p = &q->itd->hw_next;
-			q = &q->itd->itd_next;
-			continue;
-		case Q_TYPE_QH:
-			if (same_tt(dev, q->qh->ps.udev)) {
-				uf = tt_start_uframe(ehci, q->qh->hw->hw_info2);
-				tt_usecs[uf] += q->qh->ps.tt_usecs;
-			}
-			hw_p = &q->qh->hw->hw_next;
-			q = &q->qh->qh_next;
-			continue;
-		case Q_TYPE_SITD:
-			if (same_tt(dev, q->sitd->urb->dev)) {
-				uf = tt_start_uframe(ehci, q->sitd->hw_uframe);
-				tt_usecs[uf] += q->sitd->stream->ps.tt_usecs;
-			}
-			hw_p = &q->sitd->hw_next;
-			q = &q->sitd->sitd_next;
-			continue;
-		// case Q_TYPE_FSTN:
-		default:
-			ehci_dbg(ehci, "ignoring periodic frame %d FSTN\n",
-					frame);
-			hw_p = &q->fstn->hw_next;
-			q = &q->fstn->fstn_next;
-		}
-	}
-
-	carryover_tt_bandwidth(tt_usecs);
-
-	if (max_tt_usecs[7] < tt_usecs[7])
-		ehci_err(ehci, "frame %d tt sched overrun: %d usecs\n",
-			frame, tt_usecs[7] - max_tt_usecs[7]);
-}
-
 /*
  * Return true if the device's tt's downstream bus is available for a
  * periodic transfer of the specified length (usecs), starting at the
@@ -290,20 +377,29 @@ periodic_tt_usecs (
  */
 static int tt_available (
 	struct ehci_hcd		*ehci,
-	unsigned		period,
-	struct usb_device	*dev,
+	struct ehci_per_sched	*ps,
+	struct ehci_tt		*tt,
 	unsigned		frame,
-	unsigned		uframe,
-	u16			usecs
+	unsigned		uframe
 )
 {
+	unsigned		period = ps->bw_period;
+	unsigned		usecs = ps->tt_usecs;
+
 	if ((period == 0) || (uframe >= 7))	/* error */
 		return 0;
 
-	for (; frame < ehci->periodic_size; frame += period) {
-		unsigned short tt_usecs[8];
+	for (frame &= period - 1; frame < EHCI_BANDWIDTH_FRAMES;
+			frame += period) {
+		unsigned	i, uf;
+		unsigned short	tt_usecs[8];
+
+		if (tt->bandwidth[frame] + usecs > 900)
+			return 0;
 
-		periodic_tt_usecs (ehci, dev, frame, tt_usecs);
+		uf = frame << 3;
+		for (i = 0; i < 8; (++i, ++uf))
+			tt_usecs[i] = ehci->tt_budget[uf];
 
 		if (max_tt_usecs[uframe] <= tt_usecs[uframe])
 			return 0;
@@ -315,7 +411,7 @@ static int tt_available (
 		 */
 		if (125 < usecs) {
 			int ufs = (usecs / 125);
-			int i;
+
 			for (i = uframe; i < (uframe + ufs) && i < 8; i++)
 				if (0 < tt_usecs[i])
 					return 0;
@@ -697,8 +793,9 @@ static int check_intr_schedule (
 	struct ehci_hcd		*ehci,
 	unsigned		frame,
 	unsigned		uframe,
-	const struct ehci_qh	*qh,
-	__hc32			*c_maskp
+	struct ehci_qh		*qh,
+	__hc32			*c_maskp,
+	struct ehci_tt		*tt
 )
 {
 	int		retval = -ENOSPC;
@@ -716,8 +813,7 @@ static int check_intr_schedule (
 	}
 
 #ifdef CONFIG_USB_EHCI_TT_NEWSCHED
-	if (tt_available(ehci, qh->ps.bw_period, qh->ps.udev, frame, uframe,
-				qh->ps.tt_usecs)) {
+	if (tt_available(ehci, &qh->ps, tt, frame, uframe)) {
 		unsigned i;
 
 		/* TODO : this may need FSTN for SSPLIT in uframe 5. */
@@ -763,10 +859,11 @@ done:
  */
 static int qh_schedule(struct ehci_hcd *ehci, struct ehci_qh *qh)
 {
-	int		status;
+	int		status = 0;
 	unsigned	uframe;
 	unsigned	c_mask;
 	struct ehci_qh_hw	*hw = qh->hw;
+	struct ehci_tt		*tt;
 
 	hw->hw_next = EHCI_LIST_END(ehci);
 
@@ -778,7 +875,12 @@ static int qh_schedule(struct ehci_hcd *ehci, struct ehci_qh *qh)
 
 	uframe = 0;
 	c_mask = 0;
-	status = -ENOSPC;
+	tt = find_tt(qh->ps.udev);
+	if (IS_ERR(tt)) {
+		status = PTR_ERR(tt);
+		goto done;
+	}
+	compute_tt_budget(ehci->tt_budget, tt);
 
 	/* else scan the schedule to find a group of slots such that all
 	 * uframes have enough periodic bandwidth available.
@@ -788,22 +890,24 @@ static int qh_schedule(struct ehci_hcd *ehci, struct ehci_qh *qh)
 		int		i;
 		unsigned	frame;
 
-		for (i = qh->ps.bw_period; status && i > 0; --i) {
+		for (i = qh->ps.bw_period; i > 0; --i) {
 			frame = ++ehci->random_frame & (qh->ps.bw_period - 1);
 			for (uframe = 0; uframe < 8; uframe++) {
 				status = check_intr_schedule(ehci,
-						frame, uframe, qh, &c_mask);
+						frame, uframe, qh, &c_mask, tt);
 				if (status == 0)
-					break;
+					goto got_it;
 			}
 		}
 
 	/* qh->ps.bw_period == 0 means every uframe */
 	} else {
-		status = check_intr_schedule(ehci, 0, 0, qh, &c_mask);
+		status = check_intr_schedule(ehci, 0, 0, qh, &c_mask, tt);
 	}
 	if (status)
 		goto done;
+
+ got_it:
 	qh->ps.phase = (qh->ps.period ? ehci->random_frame &
 			(qh->ps.period - 1) : 0);
 	qh->ps.bw_phase = qh->ps.phase & (qh->ps.bw_period - 1);
@@ -1232,6 +1336,8 @@ static void reserve_release_iso_bandwidth(struct ehci_hcd *ehci,
 	unsigned		s_mask, c_mask, m;
 	int			usecs = stream->ps.usecs;
 	int			c_usecs = stream->ps.c_usecs;
+	int			tt_usecs = stream->ps.tt_usecs;
+	struct ehci_tt		*tt;
 
 	if (stream->ps.phase == NO_FRAME)	/* Bandwidth wasn't reserved */
 		return;
@@ -1242,6 +1348,7 @@ static void reserve_release_iso_bandwidth(struct ehci_hcd *ehci,
 	if (sign < 0) {		/* Release bandwidth */
 		usecs = -usecs;
 		c_usecs = -c_usecs;
+		tt_usecs = -tt_usecs;
 	}
 
 	if (!stream->splits) {		/* High speed */
@@ -1264,6 +1371,16 @@ static void reserve_release_iso_bandwidth(struct ehci_hcd *ehci,
 					ehci->bandwidth[i+j] += c_usecs;
 			}
 		}
+
+		tt = find_tt(stream->ps.udev);
+		if (sign > 0)
+			list_add_tail(&stream->ps.ps_list, &tt->ps_list);
+		else
+			list_del(&stream->ps.ps_list);
+
+		for (i = uframe >> 3; i < EHCI_BANDWIDTH_FRAMES;
+				i += stream->ps.bw_period)
+			tt->bandwidth[i] += tt_usecs;
 	}
 }
 
@@ -1292,7 +1409,8 @@ sitd_slot_ok (
 	struct ehci_hcd		*ehci,
 	struct ehci_iso_stream	*stream,
 	unsigned		uframe,
-	struct ehci_iso_sched	*sched
+	struct ehci_iso_sched	*sched,
+	struct ehci_tt		*tt
 )
 {
 	unsigned		mask, tmp;
@@ -1317,8 +1435,7 @@ sitd_slot_ok (
 	 * tt_available scheduling guarantees 10+% for control/bulk.
 	 */
 	uf = uframe & 7;
-	if (!tt_available(ehci, stream->ps.bw_period,
-			stream->ps.udev, frame, uf, stream->ps.tt_usecs))
+	if (!tt_available(ehci, &stream->ps, tt, frame, uf))
 		return 0;
 #else
 	/* tt must be idle for start(s), any gap, and csplit.
@@ -1417,6 +1534,13 @@ iso_stream_schedule (
 		/* Schedule the endpoint */
 		if (stream->ps.phase == NO_FRAME) {
 			int		done = 0;
+			struct ehci_tt	*tt = find_tt(stream->ps.udev);
+
+			if (IS_ERR(tt)) {
+				status = PTR_ERR(tt);
+				goto fail;
+			}
+			compute_tt_budget(ehci->tt_budget, tt);
 
 			start = (now & ~0x07) + SCHEDULING_DELAY;
 
@@ -1437,7 +1561,7 @@ iso_stream_schedule (
 					if ((start % 8) >= 6)
 						continue;
 					if (sitd_slot_ok(ehci, stream, start,
-							sched))
+							sched, tt))
 						done = 1;
 				}
 			} while (start > next && !done);
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index 12504fbded56..e8f41c5e771b 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -61,6 +61,7 @@ struct ehci_stats {
 struct ehci_per_sched {
 	struct usb_device	*udev;		/* access to the TT */
 	struct usb_host_endpoint *ep;
+	struct list_head	ps_list;	/* node on ehci_tt's ps_list */
 	u16			tt_usecs;	/* time on the FS/LS bus */
 	u16			cs_mask;	/* C-mask and S-mask bytes */
 	u16			period;		/* actual period in frames */
@@ -256,6 +257,9 @@ struct ehci_hcd {			/* one per controller */
 #define EHCI_BANDWIDTH_FRAMES	(EHCI_BANDWIDTH_SIZE >> 3)
 	u8			bandwidth[EHCI_BANDWIDTH_SIZE];
 						/* us allocated per uframe */
+	u8			tt_budget[EHCI_BANDWIDTH_SIZE];
+						/* us budgeted per uframe */
+	struct list_head	tt_list;
 
 	/* platform-specific data -- must come last */
 	unsigned long		priv[0] __aligned(sizeof(s64));
@@ -595,6 +599,35 @@ struct ehci_fstn {
 
 /*-------------------------------------------------------------------------*/
 
+/*
+ * USB-2.0 Specification Sections 11.14 and 11.18
+ * Scheduling and budgeting split transactions using TTs
+ *
+ * A hub can have a single TT for all its ports, or multiple TTs (one for each
+ * port).  The bandwidth and budgeting information for the full/low-speed bus
+ * below each TT is self-contained and independent of the other TTs or the
+ * high-speed bus.
+ *
+ * "Bandwidth" refers to the number of microseconds on the FS/LS bus allocated
+ * to an interrupt or isochronous endpoint for each frame.  "Budget" refers to
+ * the best-case estimate of the number of full-speed bytes allocated to an
+ * endpoint for each microframe within an allocated frame.
+ *
+ * Removal of an endpoint invalidates a TT's budget.  Instead of trying to
+ * keep an up-to-date record, we recompute the budget when it is needed.
+ */
+
+struct ehci_tt {
+	u16			bandwidth[EHCI_BANDWIDTH_FRAMES];
+
+	struct list_head	tt_list;	/* List of all ehci_tt's */
+	struct list_head	ps_list;	/* Items using this TT */
+	struct usb_tt		*usb_tt;
+	int			tt_port;	/* TT port number */
+};
+
+/*-------------------------------------------------------------------------*/
+
 /* Prepare the PORTSC wakeup flags during controller suspend/resume */
 
 #define ehci_prepare_ports_for_controller_suspend(ehci, do_wakeup)	\
-- 
cgit 


From a393a807d0c805e7c723315ff0e88a857055e9c6 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 11 Oct 2013 11:29:36 -0400
Subject: USB: EHCI: start new isochronous streams ASAP

This patch changes the initial delay before the startup of a newly
scheduled isochronous stream.  Currently the stream doesn't start
for at least 5 ms (40 microframes).  This value is just an estimate;
it has no real justification.

Instead, we can start the stream as soon as possible after the
scheduling computations are complete.  Essentially this requires
nothing more than reading the frame counter after the stream is
scheduled, instead of before.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-sched.c | 44 ++++++++++++++++++++++---------------------
 1 file changed, 23 insertions(+), 21 deletions(-)

diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index b5f957d322e3..7ce5c2a2fe31 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -1491,8 +1491,6 @@ sitd_slot_ok (
  * given EHCI_TUNE_FLS and the slop).  Or, write a smarter scheduler!
  */
 
-#define SCHEDULING_DELAY	40	/* microframes */
-
 static int
 iso_stream_schedule (
 	struct ehci_hcd		*ehci,
@@ -1506,27 +1504,13 @@ iso_stream_schedule (
 	unsigned		mod = ehci->periodic_size << 3;
 	struct ehci_iso_sched	*sched = urb->hcpriv;
 	bool			empty = list_empty(&stream->td_list);
+	bool			new_stream = false;
 
 	period = stream->uperiod;
 	span = sched->span;
 	if (!stream->highspeed)
 		span <<= 3;
 
-	now = ehci_read_frame_index(ehci) & (mod - 1);
-
-	/* Take the isochronous scheduling threshold into account */
-	if (ehci->i_thresh)
-		next = now + ehci->i_thresh;	/* uframe cache */
-	else
-		next = (now + 2 + 7) & ~0x07;	/* full frame cache */
-
-	/*
-	 * Use ehci->last_iso_frame as the base.  There can't be any
-	 * TDs scheduled for earlier than that.
-	 */
-	base = ehci->last_iso_frame << 3;
-	next = (next - base) & (mod - 1);
-
 	/* Start a new isochronous stream? */
 	if (unlikely(empty && !hcd_periodic_completion_in_progress(
 			ehci_to_hcd(ehci), urb->ep))) {
@@ -1542,7 +1526,7 @@ iso_stream_schedule (
 			}
 			compute_tt_budget(ehci->tt_budget, tt);
 
-			start = (now & ~0x07) + SCHEDULING_DELAY;
+			start = ((-(++ehci->random_frame)) << 3) & (period - 1);
 
 			/* find a uframe slot with enough bandwidth.
 			 * Early uframes are more precious because full-speed
@@ -1585,17 +1569,35 @@ iso_stream_schedule (
 			start = (stream->ps.phase << 3) + stream->ps.phase_uf;
 		}
 
-		start = (start - base) & (mod - 1);
-		goto use_start;
+		stream->next_uframe = start;
+		new_stream = true;
 	}
 
+	now = ehci_read_frame_index(ehci) & (mod - 1);
+
+	/* Take the isochronous scheduling threshold into account */
+	if (ehci->i_thresh)
+		next = now + ehci->i_thresh;	/* uframe cache */
+	else
+		next = (now + 2 + 7) & ~0x07;	/* full frame cache */
+
+	/*
+	 * Use ehci->last_iso_frame as the base.  There can't be any
+	 * TDs scheduled for earlier than that.
+	 */
+	base = ehci->last_iso_frame << 3;
+	next = (next - base) & (mod - 1);
+	start = (stream->next_uframe - base) & (mod - 1);
+
+	if (unlikely(new_stream))
+		goto do_ASAP;
+
 	/*
 	 * Typical case: reuse current schedule, stream may still be active.
 	 * Hopefully there are no gaps from the host falling behind
 	 * (irq delays etc).  If there are, the behavior depends on
 	 * whether URB_ISO_ASAP is set.
 	 */
-	start = (stream->next_uframe - base) & (mod - 1);
 	now2 = (now - base) & (mod - 1);
 
 	/* Is the schedule already full? */
-- 
cgit 


From 88ed9fd50e573fee332ca1e07641102b59f743fe Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 09:14:19 +0200
Subject: usb/hcd: remove unnecessary local_irq_save

Remove the use of local_irq_save() and IRQF_DISABLED, no longer needed since
interrupt handlers are always run with interrupts disabled on the
current CPU.

Tested successfully with 3.12.0-rc4 on my PC. Didn't find
any issue because of this change.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hcd.c | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 6ec8dda31118..6bffb8c87bc9 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -2331,15 +2331,8 @@ EXPORT_SYMBOL_GPL(usb_bus_start_enum);
 irqreturn_t usb_hcd_irq (int irq, void *__hcd)
 {
 	struct usb_hcd		*hcd = __hcd;
-	unsigned long		flags;
 	irqreturn_t		rc;
 
-	/* IRQF_DISABLED doesn't work correctly with shared IRQs
-	 * when the first handler doesn't use it.  So let's just
-	 * assume it's never used.
-	 */
-	local_irq_save(flags);
-
 	if (unlikely(HCD_DEAD(hcd) || !HCD_HW_ACCESSIBLE(hcd)))
 		rc = IRQ_NONE;
 	else if (hcd->driver->irq(hcd) == IRQ_NONE)
@@ -2347,7 +2340,6 @@ irqreturn_t usb_hcd_irq (int irq, void *__hcd)
 	else
 		rc = IRQ_HANDLED;
 
-	local_irq_restore(flags);
 	return rc;
 }
 EXPORT_SYMBOL_GPL(usb_hcd_irq);
@@ -2554,13 +2546,6 @@ static int usb_hcd_request_irqs(struct usb_hcd *hcd,
 
 	if (hcd->driver->irq) {
 
-		/* IRQF_DISABLED doesn't work as advertised when used together
-		 * with IRQF_SHARED. As usb_hcd_irq() will always disable
-		 * interrupts we can remove it here.
-		 */
-		if (irqflags & IRQF_SHARED)
-			irqflags &= ~IRQF_DISABLED;
-
 		snprintf(hcd->irq_descr, sizeof(hcd->irq_descr), "%s:usb%d",
 				hcd->driver->description, hcd->self.busnum);
 		retval = request_irq(irqnum, &usb_hcd_irq, irqflags,
-- 
cgit 


From c00809d330cfe42469fcd1cfd63f0690b47ea9bb Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 14 Oct 2013 09:18:54 +0900
Subject: USB: ohci-exynos: Remove non-DT support

The non-DT for EXYNOS SoCs is not supported from v3.11.
Thus, there is no need to support non-DT for Exynos OHCI driver.

The 'include/linux/platform_data/usb-ohci-exynos.h' file has been
used for non-DT support. Thus, the 'usb-ohci-exynos.h' file can
be removed.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ohci-exynos.c                | 18 +++---------------
 include/linux/platform_data/usb-ohci-exynos.h | 21 ---------------------
 2 files changed, 3 insertions(+), 36 deletions(-)
 delete mode 100644 include/linux/platform_data/usb-ohci-exynos.h

diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c
index 17f46fbf047d..a87baedc0aa7 100644
--- a/drivers/usb/host/ohci-exynos.c
+++ b/drivers/usb/host/ohci-exynos.c
@@ -18,7 +18,6 @@
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/platform_device.h>
-#include <linux/platform_data/usb-ohci-exynos.h>
 #include <linux/usb/phy.h>
 #include <linux/usb/samsung_usb_phy.h>
 #include <linux/usb.h>
@@ -38,7 +37,6 @@ struct exynos_ohci_hcd {
 	struct clk *clk;
 	struct usb_phy *phy;
 	struct usb_otg *otg;
-	struct exynos4_ohci_platdata *pdata;
 };
 
 static void exynos_ohci_phy_enable(struct platform_device *pdev)
@@ -48,8 +46,6 @@ static void exynos_ohci_phy_enable(struct platform_device *pdev)
 
 	if (exynos_ohci->phy)
 		usb_phy_init(exynos_ohci->phy);
-	else if (exynos_ohci->pdata && exynos_ohci->pdata->phy_init)
-		exynos_ohci->pdata->phy_init(pdev, USB_PHY_TYPE_HOST);
 }
 
 static void exynos_ohci_phy_disable(struct platform_device *pdev)
@@ -59,13 +55,10 @@ static void exynos_ohci_phy_disable(struct platform_device *pdev)
 
 	if (exynos_ohci->phy)
 		usb_phy_shutdown(exynos_ohci->phy);
-	else if (exynos_ohci->pdata && exynos_ohci->pdata->phy_exit)
-		exynos_ohci->pdata->phy_exit(pdev, USB_PHY_TYPE_HOST);
 }
 
 static int exynos_ohci_probe(struct platform_device *pdev)
 {
-	struct exynos4_ohci_platdata *pdata = dev_get_platdata(&pdev->dev);
 	struct exynos_ohci_hcd *exynos_ohci;
 	struct usb_hcd *hcd;
 	struct resource *res;
@@ -98,14 +91,9 @@ static int exynos_ohci_probe(struct platform_device *pdev)
 
 	phy = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
 	if (IS_ERR(phy)) {
-		/* Fallback to pdata */
-		if (!pdata) {
-			usb_put_hcd(hcd);
-			dev_warn(&pdev->dev, "no platform data or transceiver defined\n");
-			return -EPROBE_DEFER;
-		} else {
-			exynos_ohci->pdata = pdata;
-		}
+		usb_put_hcd(hcd);
+		dev_warn(&pdev->dev, "no platform data or transceiver defined\n");
+		return -EPROBE_DEFER;
 	} else {
 		exynos_ohci->phy = phy;
 		exynos_ohci->otg = phy->otg;
diff --git a/include/linux/platform_data/usb-ohci-exynos.h b/include/linux/platform_data/usb-ohci-exynos.h
deleted file mode 100644
index c256c595be5e..000000000000
--- a/include/linux/platform_data/usb-ohci-exynos.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (C) 2011 Samsung Electronics Co.Ltd
- *		http://www.samsung.com/
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- */
-
-#ifndef __MACH_EXYNOS_OHCI_H
-#define __MACH_EXYNOS_OHCI_H
-
-struct exynos4_ohci_platdata {
-	int (*phy_init)(struct platform_device *pdev, int type);
-	int (*phy_exit)(struct platform_device *pdev, int type);
-};
-
-extern void exynos4_ohci_set_platdata(struct exynos4_ohci_platdata *pd);
-
-#endif /* __MACH_EXYNOS_OHCI_H */
-- 
cgit 


From 8620d2c536dc5805bca75a76053a1becb728ddc8 Mon Sep 17 00:00:00 2001
From: Kevin Hilman <khilman@linaro.org>
Date: Mon, 14 Oct 2013 10:30:11 -0700
Subject: ARM: keystone: fix PM domain initcall to be keystone only

initcalls need to have platform specific checks so they are not run in
multi-platform builds.

Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
---
 arch/arm/mach-keystone/pm_domain.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/mach-keystone/pm_domain.c b/arch/arm/mach-keystone/pm_domain.c
index beac3fb1d205..29625232e954 100644
--- a/arch/arm/mach-keystone/pm_domain.c
+++ b/arch/arm/mach-keystone/pm_domain.c
@@ -17,6 +17,7 @@
 #include <linux/pm_clock.h>
 #include <linux/platform_device.h>
 #include <linux/clk-provider.h>
+#include <linux/of.h>
 
 #ifdef CONFIG_PM_RUNTIME
 static int keystone_pm_runtime_suspend(struct device *dev)
@@ -60,8 +61,19 @@ static struct pm_clk_notifier_block platform_domain_notifier = {
 	.pm_domain = &keystone_pm_domain,
 };
 
+static struct of_device_id of_keystone_table[] = {
+	{.compatible = "ti,keystone"},
+	{ /* end of list */ },
+};
+
 int __init keystone_pm_runtime_init(void)
 {
+	struct device_node *np;
+
+	np = of_find_matching_node(NULL, of_keystone_table);
+	if (!np)
+		return 0;
+
 	of_clk_init(NULL);
 	pm_clk_add_notifier(&platform_bus_type, &platform_domain_notifier);
 
-- 
cgit 


From 1987fdc77f49282efeec76d14eee2ded3ee9b5d2 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 14 Oct 2013 21:15:24 +0300
Subject: Bluetooth: Make Set Connectable also update the LE advertising type

This patch updates the Set Connectable Management command to also update
the LE advertising type to either connectable or non-connectable
advertising. An extra helper function is needed for getting the right
advertising type since we can not only rely on the HCI_CONNECTABLE flag
but must also check for a pending Set Connectable command (in which case
the flag does not yet have its final value).

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 35 ++++++++++++++++++++++++++++++-----
 1 file changed, 30 insertions(+), 5 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index caa552cf21f3..a07b08156dba 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1072,6 +1072,25 @@ static void write_fast_connectable(struct hci_request *req, bool enable)
 		hci_req_add(req, HCI_OP_WRITE_PAGE_SCAN_TYPE, 1, &type);
 }
 
+static u8 get_adv_type(struct hci_dev *hdev)
+{
+	struct pending_cmd *cmd;
+	bool connectable;
+
+	/* If there's a pending mgmt command the flag will not yet have
+	 * it's final value, so check for this first.
+	 */
+	cmd = mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev);
+	if (cmd) {
+		struct mgmt_mode *cp = cmd->param;
+		connectable = !!cp->val;
+	} else {
+		connectable = test_bit(HCI_CONNECTABLE, &hdev->dev_flags);
+	}
+
+	return connectable ? LE_ADV_IND : LE_ADV_NONCONN_IND;
+}
+
 static void enable_advertising(struct hci_request *req)
 {
 	struct hci_dev *hdev = req->hdev;
@@ -1081,7 +1100,7 @@ static void enable_advertising(struct hci_request *req)
 	memset(&cp, 0, sizeof(cp));
 	cp.min_interval = __constant_cpu_to_le16(0x0800);
 	cp.max_interval = __constant_cpu_to_le16(0x0800);
-	cp.type = LE_ADV_IND;
+	cp.type = get_adv_type(hdev);
 	if (bacmp(&hdev->bdaddr, BDADDR_ANY))
 		cp.own_address_type = ADDR_LE_DEV_PUBLIC;
 	else
@@ -1144,15 +1163,15 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 	struct mgmt_mode *cp = data;
 	struct pending_cmd *cmd;
 	struct hci_request req;
-	u8 scan, status;
+	u8 scan;
 	int err;
 
 	BT_DBG("request for %s", hdev->name);
 
-	status = mgmt_bredr_support(hdev);
-	if (status)
+	if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags) &&
+	    !test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
-				  status);
+				  MGMT_STATUS_REJECTED);
 
 	if (cp->val != 0x00 && cp->val != 0x01)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
@@ -1223,6 +1242,12 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 	if (cp->val || test_bit(HCI_FAST_CONNECTABLE, &hdev->dev_flags))
 		write_fast_connectable(&req, false);
 
+	if (test_bit(HCI_ADVERTISING, &hdev->dev_flags) &&
+	    hci_conn_num(hdev, LE_LINK) == 0) {
+		disable_advertising(&req);
+		enable_advertising(&req);
+	}
+
 	err = hci_req_run(&req, set_connectable_complete);
 	if (err < 0) {
 		mgmt_pending_remove(cmd);
-- 
cgit 


From 67e5a7a3d796d88da9662ab90aa23161c6a9f753 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 14 Oct 2013 21:15:25 +0300
Subject: Bluetooth: Move set_bredr_scan() to avoid forward declaration

The set_bredr_scan() function will soon be needed by the set_bredr()
function, so move it to a new location to avoid having to add a forward
declaration.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 40 ++++++++++++++++++++--------------------
 1 file changed, 20 insertions(+), 20 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index a07b08156dba..48aa23977da3 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3558,6 +3558,26 @@ unlock:
 	return err;
 }
 
+static void set_bredr_scan(struct hci_request *req)
+{
+	struct hci_dev *hdev = req->hdev;
+	u8 scan = 0;
+
+	/* Ensure that fast connectable is disabled. This function will
+	 * not do anything if the page scan parameters are already what
+	 * they should be.
+	 */
+	write_fast_connectable(req, false);
+
+	if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
+		scan |= SCAN_PAGE;
+	if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
+		scan |= SCAN_INQUIRY;
+
+	if (scan)
+		hci_req_add(req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+}
+
 static void set_bredr_complete(struct hci_dev *hdev, u8 status)
 {
 	struct pending_cmd *cmd;
@@ -3917,26 +3937,6 @@ void mgmt_index_removed(struct hci_dev *hdev)
 	mgmt_event(MGMT_EV_INDEX_REMOVED, hdev, NULL, 0, NULL);
 }
 
-static void set_bredr_scan(struct hci_request *req)
-{
-	struct hci_dev *hdev = req->hdev;
-	u8 scan = 0;
-
-	/* Ensure that fast connectable is disabled. This function will
-	 * not do anything if the page scan parameters are already what
-	 * they should be.
-	 */
-	write_fast_connectable(req, false);
-
-	if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
-		scan |= SCAN_PAGE;
-	if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
-		scan |= SCAN_INQUIRY;
-
-	if (scan)
-		hci_req_add(req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
-}
-
 static void powered_complete(struct hci_dev *hdev, u8 status)
 {
 	struct cmd_lookup match = { NULL, hdev };
-- 
cgit 


From aa8af46e90869686e1a2707d0803ea9445a643a3 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 14 Oct 2013 21:15:26 +0300
Subject: Bluetooth: Fix updating scan mode in set_bredr()

Now that the connectable setting is also applicable for the LE side it's
possible that the HCI_CONNECTABLE flag is already set when changing the
BR/EDR setting from false to true while the controller is powered. In
this situation we need to update the BR/EDR scan mode to reflect the
setting. Additionally, since HCI_CONNECTABLE also applies to LE we must
not clear the HCI_CONNECTABLE flag when disabling bredr.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 48aa23977da3..0bad451e5a90 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3640,7 +3640,6 @@ static int set_bredr(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 
 	if (!hdev_is_powered(hdev)) {
 		if (!cp->val) {
-			clear_bit(HCI_CONNECTABLE, &hdev->dev_flags);
 			clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags);
 			clear_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
 			clear_bit(HCI_LINK_SECURITY, &hdev->dev_flags);
@@ -3683,7 +3682,12 @@ static int set_bredr(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 	set_bit(HCI_BREDR_ENABLED, &hdev->dev_flags);
 
 	hci_req_init(&req, hdev);
+
+	if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
+		set_bredr_scan(&req);
+
 	hci_update_ad(&req);
+
 	err = hci_req_run(&req, set_bredr_complete);
 	if (err < 0)
 		mgmt_pending_remove(cmd);
-- 
cgit 


From bfaf8c9ff17a256fe435d452e8ff5a515155ee3b Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 14 Oct 2013 21:15:27 +0300
Subject: Bluetooth: Convert Set Discoverable to use an asynchronous request

This patch converts Set Discoverable to use an asynchronous request
along with its own completion callback. This is necessary for splitting
raw HCI socket use cases from mgmt, as well as for enabling the hooking
up of Advertising parameters together with the HCI_DISCOVERABLE flag
(coming in later patches).

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 63 ++++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 54 insertions(+), 9 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 0bad451e5a90..813012f5032e 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -935,11 +935,52 @@ static u8 mgmt_le_support(struct hci_dev *hdev)
 		return MGMT_STATUS_SUCCESS;
 }
 
+static void set_discoverable_complete(struct hci_dev *hdev, u8 status)
+{
+	struct pending_cmd *cmd;
+	struct mgmt_mode *cp;
+	bool changed;
+
+	BT_DBG("status 0x%02x", status);
+
+	hci_dev_lock(hdev);
+
+	cmd = mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev);
+	if (!cmd)
+		goto unlock;
+
+	if (status) {
+		u8 mgmt_err = mgmt_status(status);
+		cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
+		goto remove_cmd;
+	}
+
+	cp = cmd->param;
+	if (cp->val)
+		changed = !test_and_set_bit(HCI_DISCOVERABLE,
+					    &hdev->dev_flags);
+	else
+		changed = test_and_clear_bit(HCI_DISCOVERABLE,
+					     &hdev->dev_flags);
+
+	send_settings_rsp(cmd->sk, MGMT_OP_SET_DISCOVERABLE, hdev);
+
+	if (changed)
+		new_settings(hdev, cmd->sk);
+
+remove_cmd:
+	mgmt_pending_remove(cmd);
+
+unlock:
+	hci_dev_unlock(hdev);
+}
+
 static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 			    u16 len)
 {
 	struct mgmt_cp_set_discoverable *cp = data;
 	struct pending_cmd *cmd;
+	struct hci_request req;
 	u16 timeout;
 	u8 scan, status;
 	int err;
@@ -1021,6 +1062,8 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 		goto failed;
 	}
 
+	hci_req_init(&req, hdev);
+
 	scan = SCAN_PAGE;
 
 	if (cp->val)
@@ -1028,7 +1071,9 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 	else
 		cancel_delayed_work(&hdev->discov_off);
 
-	err = hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+	hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+
+	err = hci_req_run(&req, set_discoverable_complete);
 	if (err < 0)
 		mgmt_pending_remove(cmd);
 
@@ -4074,10 +4119,16 @@ void mgmt_set_powered_failed(struct hci_dev *hdev, int err)
 
 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable)
 {
-	struct cmd_lookup match = { NULL, hdev };
 	bool changed = false;
 	int err = 0;
 
+	/* Nothing needed here if there's a pending command since that
+	 * commands request completion callback takes care of everything
+	 * necessary.
+	 */
+	if (mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev))
+		return 0;
+
 	if (discoverable) {
 		if (!test_and_set_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
 			changed = true;
@@ -4086,14 +4137,8 @@ int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable)
 			changed = true;
 	}
 
-	mgmt_pending_foreach(MGMT_OP_SET_DISCOVERABLE, hdev, settings_rsp,
-			     &match);
-
 	if (changed)
-		err = new_settings(hdev, match.sk);
-
-	if (match.sk)
-		sock_put(match.sk);
+		err = new_settings(hdev, NULL);
 
 	return err;
 }
-- 
cgit 


From 80c1a2e76dbb36588facb265ab364b1302f7ef8c Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 14 Oct 2013 21:17:52 +0300
Subject: Bluetooth: Reject invalid bdaddr types for sockets

We need to verify that the bdaddr type passed to connect() and bind() is
within the set of valid values. If it is not we need to cleanly fail
with EINVAL.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/l2cap_sock.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index fcf012a422fd..3f21207d59e5 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -69,6 +69,9 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
 	if (la.l2_cid && la.l2_psm)
 		return -EINVAL;
 
+	if (!bdaddr_type_is_valid(la.l2_bdaddr_type))
+		return -EINVAL;
+
 	lock_sock(sk);
 
 	if (sk->sk_state != BT_OPEN) {
@@ -144,6 +147,9 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr,
 	if (la.l2_cid && la.l2_psm)
 		return -EINVAL;
 
+	if (!bdaddr_type_is_valid(la.l2_bdaddr_type))
+		return -EINVAL;
+
 	err = l2cap_chan_connect(chan, la.l2_psm, __le16_to_cpu(la.l2_cid),
 				 &la.l2_bdaddr, la.l2_bdaddr_type);
 	if (err)
-- 
cgit 


From 1f209383f2be94e15e179da3a4cbcfeabcc2efc2 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 14 Oct 2013 21:17:53 +0300
Subject: Bluetooth: Check that bind() bdaddr type matches connect()

If a socket was bound to an address type other than BR/EDR (such as LE)
we should reject trying to connect it to a BR/EDR address. The same
applies for binding to BR/EDR and trying to connect to non-BR/EDR.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/l2cap_sock.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 3f21207d59e5..5ffd75e20bde 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -150,6 +150,12 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr,
 	if (!bdaddr_type_is_valid(la.l2_bdaddr_type))
 		return -EINVAL;
 
+	if (chan->src_type == BDADDR_BREDR && la.l2_bdaddr_type != BDADDR_BREDR)
+		return -EINVAL;
+
+	if (chan->src_type != BDADDR_BREDR && la.l2_bdaddr_type == BDADDR_BREDR)
+		return -EINVAL;
+
 	err = l2cap_chan_connect(chan, la.l2_psm, __le16_to_cpu(la.l2_cid),
 				 &la.l2_bdaddr, la.l2_bdaddr_type);
 	if (err)
-- 
cgit 


From 6b2978ac40e414f984904fd53f6599d9eaf56407 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Mon, 14 Oct 2013 11:31:42 -0700
Subject: ARM: dts: Shared file for omap GPMC connected smsc911x

Looks like at least Igep, Zoom and EVM boards can use a
common file for the GPMC connected smsc911x.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi | 52 +++++++++++++++++++++++++++++++
 arch/arm/boot/dts/omap3-igep0020.dts      | 45 ++------------------------
 2 files changed, 54 insertions(+), 43 deletions(-)
 create mode 100644 arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi

diff --git a/arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi b/arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi
new file mode 100644
index 000000000000..9c18adf788f7
--- /dev/null
+++ b/arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi
@@ -0,0 +1,52 @@
+/*
+ * Common file for GPMC connected smsc911x on omaps
+ *
+ * Note that the board specifc DTS file needs to specify
+ * ranges, pinctrl, reg, interrupt parent and interrupts.
+ */
+
+/ {
+	vddvario: regulator-vddvario {
+		  compatible = "regulator-fixed";
+		  regulator-name = "vddvario";
+		  regulator-always-on;
+	};
+
+	vdd33a: regulator-vdd33a {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd33a";
+		regulator-always-on;
+	};
+};
+
+&gpmc {
+	ethernet@gpmc {
+		compatible = "smsc,lan9221", "smsc,lan9115";
+		bank-width = <2>;
+		gpmc,mux-add-data;
+		gpmc,cs-on-ns = <0>;
+		gpmc,cs-rd-off-ns = <186>;
+		gpmc,cs-wr-off-ns = <186>;
+		gpmc,adv-on-ns = <12>;
+		gpmc,adv-rd-off-ns = <48>;
+		gpmc,adv-wr-off-ns = <48>;
+		gpmc,oe-on-ns = <54>;
+		gpmc,oe-off-ns = <168>;
+		gpmc,we-on-ns = <54>;
+		gpmc,we-off-ns = <168>;
+		gpmc,rd-cycle-ns = <186>;
+		gpmc,wr-cycle-ns = <186>;
+		gpmc,access-ns = <114>;
+		gpmc,page-burst-access-ns = <6>;
+		gpmc,bus-turnaround-ns = <12>;
+		gpmc,cycle2cycle-delay-ns = <18>;
+		gpmc,wr-data-mux-bus-ns = <90>;
+		gpmc,wr-access-ns = <186>;
+		gpmc,cycle2cycle-samecsen;
+		gpmc,cycle2cycle-diffcsen;
+		vmmc-supply = <&vddvario>;
+		vmmc_aux-supply = <&vdd33a>;
+		reg-io-width = <4>;
+		smsc,save-mac-address;
+	};
+};
diff --git a/arch/arm/boot/dts/omap3-igep0020.dts b/arch/arm/boot/dts/omap3-igep0020.dts
index 750ce84fc195..d5cc79267250 100644
--- a/arch/arm/boot/dts/omap3-igep0020.dts
+++ b/arch/arm/boot/dts/omap3-igep0020.dts
@@ -10,6 +10,7 @@
  */
 
 #include "omap3-igep.dtsi"
+#include "omap-gpmc-smsc911x.dtsi"
 
 / {
 	model = "IGEPv2";
@@ -44,18 +45,6 @@
 		};
 	};
 
-	vddvario: regulator-vddvario {
-		  compatible = "regulator-fixed";
-		  regulator-name = "vddvario";
-		  regulator-always-on;
-	};
-
-	vdd33a: regulator-vdd33a {
-		compatible = "regulator-fixed";
-		regulator-name = "vdd33a";
-		regulator-always-on;
-	};
-
        /* HS USB Port 1 Power */
        hsusb1_power: hsusb1_power_reg {
                compatible = "regulator-fixed";
@@ -169,42 +158,12 @@
 		};
 	};
 
-	ethernet@5,0 {
+	ethernet@gpmc {
 		pinctrl-names = "default";
 		pinctrl-0 = <&smsc911x_pins>;
-		compatible = "smsc,lan9221", "smsc,lan9115";
 		reg = <5 0 0xff>;
-		bank-width = <2>;
-
-		gpmc,mux-add-data;
-		gpmc,cs-on-ns = <0>;
-		gpmc,cs-rd-off-ns = <186>;
-		gpmc,cs-wr-off-ns = <186>;
-		gpmc,adv-on-ns = <12>;
-		gpmc,adv-rd-off-ns = <48>;
-		gpmc,adv-wr-off-ns = <48>;
-		gpmc,oe-on-ns = <54>;
-		gpmc,oe-off-ns = <168>;
-		gpmc,we-on-ns = <54>;
-		gpmc,we-off-ns = <168>;
-		gpmc,rd-cycle-ns = <186>;
-		gpmc,wr-cycle-ns = <186>;
-		gpmc,access-ns = <114>;
-		gpmc,page-burst-access-ns = <6>;
-		gpmc,bus-turnaround-ns = <12>;
-		gpmc,cycle2cycle-delay-ns = <18>;
-		gpmc,wr-data-mux-bus-ns = <90>;
-		gpmc,wr-access-ns = <186>;
-		gpmc,cycle2cycle-samecsen;
-		gpmc,cycle2cycle-diffcsen;
-
 		interrupt-parent = <&gpio6>;
 		interrupts = <16 IRQ_TYPE_LEVEL_LOW>;
-		vmmc-supply = <&vddvario>;
-		vmmc_aux-supply = <&vdd33a>;
-		reg-io-width = <4>;
-
-		smsc,save-mac-address;
 	};
 };
 
-- 
cgit 


From 465ce68b467e5e47d699564432dff8cb60204433 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Mon, 14 Oct 2013 11:31:42 -0700
Subject: ARM: dts: Add common support for omap3-evm

Looks like the main difference between the TMDSEVM3530 and
TMDSEVM3730 is just the omap processor:

http://www.ti.com/tool/tmdsevm3530
http://www.ti.com/tool/tmdsevm3730

So let's add a common file for the EVMs, and fix the description
for the omap3-evm.dst as that's clearly for the TMDSEVM3530
since it includes omap34xx.dtsi. It cannot support the TMDSEVM3730
properly, and we need a separate file for that in the following
patch.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap3-evm-common.dtsi | 60 +++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/omap3-evm.dts         | 58 ++-----------------------------
 2 files changed, 62 insertions(+), 56 deletions(-)
 create mode 100644 arch/arm/boot/dts/omap3-evm-common.dtsi

diff --git a/arch/arm/boot/dts/omap3-evm-common.dtsi b/arch/arm/boot/dts/omap3-evm-common.dtsi
new file mode 100644
index 000000000000..75753bb28535
--- /dev/null
+++ b/arch/arm/boot/dts/omap3-evm-common.dtsi
@@ -0,0 +1,60 @@
+/*
+ * Common support for omap3 EVM boards
+ */
+
+/ {
+	cpus {
+		cpu@0 {
+			cpu0-supply = <&vcc>;
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		ledb {
+			label = "omap3evm::ledb";
+			gpios = <&twl_gpio 19 GPIO_ACTIVE_HIGH>; /* LEDB */
+			linux,default-trigger = "default-on";
+		};
+	};
+};
+
+&i2c1 {
+	clock-frequency = <2600000>;
+
+	twl: twl@48 {
+		reg = <0x48>;
+		interrupts = <7>; /* SYS_NIRQ cascaded to intc */
+		interrupt-parent = <&intc>;
+	};
+};
+
+#include "twl4030.dtsi"
+#include "twl4030_omap3.dtsi"
+
+&i2c2 {
+	clock-frequency = <400000>;
+};
+
+&i2c3 {
+	clock-frequency = <400000>;
+
+	/*
+	 * TVP5146 Video decoder-in for analog input support.
+	 */
+	tvp5146@5c {
+		compatible = "ti,tvp5146m2";
+		reg = <0x5c>;
+	};
+};
+
+&twl_gpio {
+	ti,use-leds;
+};
+
+&usb_otg_hs {
+	interface-type = <0>;
+	usb-phy = <&usb2_phy>;
+	mode = <3>;
+	power = <50>;
+};
diff --git a/arch/arm/boot/dts/omap3-evm.dts b/arch/arm/boot/dts/omap3-evm.dts
index 7d4329d179c4..e10dcd0fa539 100644
--- a/arch/arm/boot/dts/omap3-evm.dts
+++ b/arch/arm/boot/dts/omap3-evm.dts
@@ -8,68 +8,14 @@
 /dts-v1/;
 
 #include "omap34xx.dtsi"
+#include "omap3-evm-common.dtsi"
 
 / {
-	model = "TI OMAP3 EVM (OMAP3530, AM/DM37x)";
+	model = "TI OMAP35XX EVM (TMDSEVM3530)";
 	compatible = "ti,omap3-evm", "ti,omap3";
 
-	cpus {
-		cpu@0 {
-			cpu0-supply = <&vcc>;
-		};
-	};
-
 	memory {
 		device_type = "memory";
 		reg = <0x80000000 0x10000000>; /* 256 MB */
 	};
-
-	leds {
-		compatible = "gpio-leds";
-		ledb {
-			label = "omap3evm::ledb";
-			gpios = <&twl_gpio 19 GPIO_ACTIVE_HIGH>; /* LEDB */
-			linux,default-trigger = "default-on";
-		};
-	};
-};
-
-&i2c1 {
-	clock-frequency = <2600000>;
-
-	twl: twl@48 {
-		reg = <0x48>;
-		interrupts = <7>; /* SYS_NIRQ cascaded to intc */
-		interrupt-parent = <&intc>;
-	};
-};
-
-#include "twl4030.dtsi"
-#include "twl4030_omap3.dtsi"
-
-&i2c2 {
-	clock-frequency = <400000>;
-};
-
-&i2c3 {
-	clock-frequency = <400000>;
-
-	/*
-	 * TVP5146 Video decoder-in for analog input support.
-	 */
-	tvp5146@5c {
-		compatible = "ti,tvp5146m2";
-		reg = <0x5c>;
-	};
-};
-
-&twl_gpio {
-	ti,use-leds;
-};
-
-&usb_otg_hs {
-	interface-type = <0>;
-	usb-phy = <&usb2_phy>;
-	mode = <3>;
-	power = <50>;
 };
-- 
cgit 


From 5992234bc5f34f3069d0457090d87865ec31fe13 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Mon, 14 Oct 2013 11:31:43 -0700
Subject: ARM: dts: Add basic support for TMDSEVM3730 (Mistral AM/DM37x EVM)

I've tested the serial, MMC, smsc911x, wl12xx, and off-idle support
with the pinctrl patches, so it probably works better than the
board-*.c files ever did. Also the board-omap3evm.c file is broken
for the DSS, and has been for a while. Patches are welcome to fix
it in this .dts file, let's just drop the board-*.c file for this.

Note that off-idle currently requires doing request_irq() on the
wake-up pin from pinctrl-single IRQ domain until we can handle
that in some Linux generic way.

[tony@atomide.com: updated for make dtbs build fix]
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/Makefile              |   1 +
 arch/arm/boot/dts/omap3-evm-37xx.dts    | 151 ++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/omap3-evm-common.dtsi |  34 +++++++
 3 files changed, 186 insertions(+)
 create mode 100644 arch/arm/boot/dts/omap3-evm-37xx.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 9df7d2c15e7d..96d8f1f50430 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -172,6 +172,7 @@ dtb-$(CONFIG_ARCH_OMAP2PLUS) += omap2420-h4.dtb \
 	omap3-devkit8000.dtb \
 	omap3-beagle-xm.dtb \
 	omap3-evm.dtb \
+	omap3-evm-37xx.dtb \
 	omap3-n900.dtb \
 	omap3-tobi.dtb \
 	omap3-gta04.dtb \
diff --git a/arch/arm/boot/dts/omap3-evm-37xx.dts b/arch/arm/boot/dts/omap3-evm-37xx.dts
new file mode 100644
index 000000000000..4df68ad3736a
--- /dev/null
+++ b/arch/arm/boot/dts/omap3-evm-37xx.dts
@@ -0,0 +1,151 @@
+/*
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+/dts-v1/;
+
+#include "omap36xx.dtsi"
+#include "omap3-evm-common.dtsi"
+
+
+/ {
+	model = "TI OMAP37XX EVM (TMDSEVM3730)";
+	compatible = "ti,omap3-evm-37xx", "ti,omap36xx";
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x10000000>; /* 256 MB */
+	};
+
+	wl12xx_vmmc: wl12xx_vmmc {
+		pinctrl-names = "default";
+		pinctrl-0 = <&wl12xx_gpio>;
+	};
+};
+
+&omap3_pmx_core {
+	mmc1_pins: pinmux_mmc1_pins {
+		pinctrl-single,pins = <
+			0x114 (PIN_OUTPUT_PULLUP | MUX_MODE0)	/* sdmmc1_clk.sdmmc1_clk */
+			0x116 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_cmd.sdmmc1_cmd */
+			0x118 (PIN_INPUT_PULLUP | MUX_MODE0) 	/* sdmmc1_dat0.sdmmc1_dat0 */
+			0x11a (PIN_INPUT_PULLUP | MUX_MODE0) 	/* sdmmc1_dat1.sdmmc1_dat1 */
+			0x11c (PIN_INPUT_PULLUP | MUX_MODE0) 	/* sdmmc1_dat2.sdmmc1_dat2 */
+			0x11e (PIN_INPUT_PULLUP | MUX_MODE0) 	/* sdmmc1_dat3.sdmmc1_dat3 */
+			0x120 (PIN_INPUT_PULLUP | MUX_MODE0) 	/* sdmmc1_dat4.sdmmc1_dat4 */
+			0x122 (PIN_INPUT_PULLUP | MUX_MODE0) 	/* sdmmc1_dat5.sdmmc1_dat5 */
+			0x124 (PIN_INPUT_PULLUP | MUX_MODE0) 	/* sdmmc1_dat6.sdmmc1_dat6 */
+			0x126 (PIN_INPUT_PULLUP | MUX_MODE0) 	/* sdmmc1_dat7.sdmmc1_dat7 */
+		>;
+	};
+
+	/* NOTE: Clocked externally, needs INPUT also for sdmmc2_clk.sdmmc2_clk */
+	mmc2_pins: pinmux_mmc2_pins {
+		pinctrl-single,pins = <
+			0x128 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_clk.sdmmc2_clk */
+			0x12a (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_cmd.sdmmc2_cmd */
+			0x12c (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_dat0.sdmmc2_dat0 */
+			0x12e (WAKEUP_EN | PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_dat1.sdmmc2_dat1 */
+			0x130 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_dat2.sdmmc2_dat2 */
+			0x132 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_dat3.sdmmc2_dat3 */
+		>;
+	};
+
+	uart3_pins: pinmux_uart3_pins {
+		pinctrl-single,pins = <
+			0x16e (WAKEUP_EN | PIN_INPUT | MUX_MODE0) /* uart3_rx_irrx.uart3_rx_irrx */
+			0x170 (PIN_OUTPUT | MUX_MODE0)		/* uart3_tx_irtx.uart3_tx_irtx */
+		>;
+	};
+
+	wl12xx_gpio: pinmux_wl12xx_gpio {
+		pinctrl-single,pins = <
+			0x150 (PIN_OUTPUT | MUX_MODE4)		/* uart1_cts.gpio_150 */
+			0x14e (PIN_INPUT | MUX_MODE4)		/* uart1_rts.gpio_149 */
+		>;
+	};
+
+	smsc911x_pins: pinmux_smsc911x_pins {
+		pinctrl-single,pins = <
+			0x1a2 (PIN_INPUT | MUX_MODE4)		/* mcspi1_cs2.gpio_176 */
+		>;
+	};
+};
+
+&mmc1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc1_pins>;
+};
+
+&mmc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc2_pins>;
+};
+
+&mmc3 {
+	status = "disabled";
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart3_pins>;
+};
+
+&gpmc {
+	ranges = <0 0 0x00000000 0x20000000>,
+		 <5 0 0x2c000000 0x01000000>;
+
+	nand@0,0 {
+		linux,mtd-name= "hynix,h8kds0un0mer-4em";
+		reg = <0 0 0>;
+		nand-bus-width = <16>;
+		ti,nand-ecc-opt = "bch8";
+
+		gpmc,sync-clk-ps = <0>;
+		gpmc,cs-on-ns = <0>;
+		gpmc,cs-rd-off-ns = <44>;
+		gpmc,cs-wr-off-ns = <44>;
+		gpmc,adv-on-ns = <6>;
+		gpmc,adv-rd-off-ns = <34>;
+		gpmc,adv-wr-off-ns = <44>;
+		gpmc,we-off-ns = <40>;
+		gpmc,oe-off-ns = <54>;
+		gpmc,access-ns = <64>;
+		gpmc,rd-cycle-ns = <82>;
+		gpmc,wr-cycle-ns = <82>;
+		gpmc,wr-access-ns = <40>;
+		gpmc,wr-data-mux-bus-ns = <0>;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		partition@0 {
+			label = "X-Loader";
+			reg = <0 0x80000>;
+		};
+		partition@0x80000 {
+			label = "U-Boot";
+			reg = <0x80000 0x1c0000>;
+		};
+		partition@0x1c0000 {
+			label = "Environment";
+			reg = <0x240000 0x40000>;
+		};
+		partition@0x280000 {
+			label = "Kernel";
+			reg = <0x280000 0x500000>;
+		};
+		partition@0x780000 {
+			label = "Filesystem";
+			reg = <0x780000 0x1f880000>;
+		};
+	};
+
+	ethernet@gpmc {
+		pinctrl-names = "default";
+		pinctrl-0 = <&smsc911x_pins>;
+	};
+};
diff --git a/arch/arm/boot/dts/omap3-evm-common.dtsi b/arch/arm/boot/dts/omap3-evm-common.dtsi
index 75753bb28535..b5493296d103 100644
--- a/arch/arm/boot/dts/omap3-evm-common.dtsi
+++ b/arch/arm/boot/dts/omap3-evm-common.dtsi
@@ -2,6 +2,8 @@
  * Common support for omap3 EVM boards
  */
 
+#include "omap-gpmc-smsc911x.dtsi"
+
 / {
 	cpus {
 		cpu@0 {
@@ -17,6 +19,17 @@
 			linux,default-trigger = "default-on";
 		};
 	};
+
+	wl12xx_vmmc: wl12xx_vmmc {
+		compatible = "regulator-fixed";
+		regulator-name = "vwl1271";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		gpio = <&gpio5 22 0>;	/* gpio150 */
+		startup-delay-us = <70000>;
+		enable-active-high;
+		vin-supply = <&vmmc2>;
+	};
 };
 
 &i2c1 {
@@ -48,6 +61,19 @@
 	};
 };
 
+&mmc1 {
+	vmmc-supply = <&vmmc1>;
+	vmmc_aux-supply = <&vsim>;
+	bus-width = <8>;
+};
+
+&mmc2 {
+	vmmc-supply = <&wl12xx_vmmc>;
+	non-removable;
+	bus-width = <4>;
+	cap-power-off-card;
+};
+
 &twl_gpio {
 	ti,use-leds;
 };
@@ -58,3 +84,11 @@
 	mode = <3>;
 	power = <50>;
 };
+
+&gpmc {
+	ethernet@gpmc {
+		interrupt-parent = <&gpio6>;
+		interrupts = <16 8>;
+		reg = <5 0 0xff>;
+	};
+};
-- 
cgit 


From 899e107577a8de67b97a877ed90bbfbfefb1916e Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 14 Oct 2013 09:55:32 -0700
Subject: Bluetooth: Check that scan window is smaller or equal than scan
 interval

The scan window parameter for connection establishment and passive
scanning needs to be smaller or equal than the scan interval.

Instead of waiting for a controller to reject these values later on,
just reject them right away.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 813012f5032e..861e389f4b4c 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3493,6 +3493,10 @@ static int set_scan_params(struct sock *sk, struct hci_dev *hdev,
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
 				  MGMT_STATUS_INVALID_PARAMS);
 
+	if (window > interval)
+		return cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
+				  MGMT_STATUS_INVALID_PARAMS);
+
 	hci_dev_lock(hdev);
 
 	hdev->le_scan_interval = interval;
-- 
cgit 


From 7f50547059bd55ac6a98c29fd1989421bdc36ec9 Mon Sep 17 00:00:00 2001
From: Simon Wood <simon@mungewell.org>
Date: Thu, 10 Oct 2013 08:20:12 -0600
Subject: HID: lg: fix ReportDescriptor for Logitech Formula Vibration

By default the Logitech Formula Vibration presents a combined accel/brake
axis ('Y'). This patch modifies the HID descriptor to present seperate
accel/brake axes ('Y' and 'Z').

Signed-off-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-lg.c | 77 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)

diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c
index c2c7dab7d2c4..1bfd292cac8f 100644
--- a/drivers/hid/hid-lg.c
+++ b/drivers/hid/hid-lg.c
@@ -45,6 +45,7 @@
 /* Size of the original descriptors of the Driving Force (and Pro) wheels */
 #define DF_RDESC_ORIG_SIZE	130
 #define DFP_RDESC_ORIG_SIZE	97
+#define FV_RDESC_ORIG_SIZE	130
 #define MOMO_RDESC_ORIG_SIZE	87
 
 /* Fixed report descriptors for Logitech Driving Force (and Pro)
@@ -170,6 +171,73 @@ static __u8 dfp_rdesc_fixed[] = {
 0xC0                /*  End Collection                          */
 };
 
+static __u8 fv_rdesc_fixed[] = {
+0x05, 0x01,         /*  Usage Page (Desktop),                   */
+0x09, 0x04,         /*  Usage (Joystik),                        */
+0xA1, 0x01,         /*  Collection (Application),               */
+0xA1, 0x02,         /*      Collection (Logical),               */
+0x95, 0x01,         /*          Report Count (1),               */
+0x75, 0x0A,         /*          Report Size (10),               */
+0x15, 0x00,         /*          Logical Minimum (0),            */
+0x26, 0xFF, 0x03,   /*          Logical Maximum (1023),         */
+0x35, 0x00,         /*          Physical Minimum (0),           */
+0x46, 0xFF, 0x03,   /*          Physical Maximum (1023),        */
+0x09, 0x30,         /*          Usage (X),                      */
+0x81, 0x02,         /*          Input (Variable),               */
+0x95, 0x0C,         /*          Report Count (12),              */
+0x75, 0x01,         /*          Report Size (1),                */
+0x25, 0x01,         /*          Logical Maximum (1),            */
+0x45, 0x01,         /*          Physical Maximum (1),           */
+0x05, 0x09,         /*          Usage Page (Button),            */
+0x19, 0x01,         /*          Usage Minimum (01h),            */
+0x29, 0x0C,         /*          Usage Maximum (0Ch),            */
+0x81, 0x02,         /*          Input (Variable),               */
+0x95, 0x02,         /*          Report Count (2),               */
+0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),             */
+0x09, 0x01,         /*          Usage (01h),                    */
+0x81, 0x02,         /*          Input (Variable),               */
+0x09, 0x02,         /*          Usage (02h),                    */
+0x26, 0xFF, 0x00,   /*          Logical Maximum (255),          */
+0x46, 0xFF, 0x00,   /*          Physical Maximum (255),         */
+0x95, 0x01,         /*          Report Count (1),               */
+0x75, 0x08,         /*          Report Size (8),                */
+0x81, 0x02,         /*          Input (Variable),               */
+0x05, 0x01,         /*          Usage Page (Desktop),           */
+0x25, 0x07,         /*          Logical Maximum (7),            */
+0x46, 0x3B, 0x01,   /*          Physical Maximum (315),         */
+0x75, 0x04,         /*          Report Size (4),                */
+0x65, 0x14,         /*          Unit (Degrees),                 */
+0x09, 0x39,         /*          Usage (Hat Switch),             */
+0x81, 0x42,         /*          Input (Variable, Null State),   */
+0x75, 0x01,         /*          Report Size (1),                */
+0x95, 0x04,         /*          Report Count (4),               */
+0x65, 0x00,         /*          Unit,                           */
+0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),             */
+0x09, 0x01,         /*          Usage (01h),                    */
+0x25, 0x01,         /*          Logical Maximum (1),            */
+0x45, 0x01,         /*          Physical Maximum (1),           */
+0x81, 0x02,         /*          Input (Variable),               */
+0x05, 0x01,         /*          Usage Page (Desktop),           */
+0x95, 0x01,         /*          Report Count (1),               */
+0x75, 0x08,         /*          Report Size (8),                */
+0x26, 0xFF, 0x00,   /*          Logical Maximum (255),          */
+0x46, 0xFF, 0x00,   /*          Physical Maximum (255),         */
+0x09, 0x31,         /*          Usage (Y),                      */
+0x81, 0x02,         /*          Input (Variable),               */
+0x09, 0x32,         /*          Usage (Z),                      */
+0x81, 0x02,         /*          Input (Variable),               */
+0xC0,               /*      End Collection,                     */
+0xA1, 0x02,         /*      Collection (Logical),               */
+0x26, 0xFF, 0x00,   /*          Logical Maximum (255),          */
+0x46, 0xFF, 0x00,   /*          Physical Maximum (255),         */
+0x95, 0x07,         /*          Report Count (7),               */
+0x75, 0x08,         /*          Report Size (8),                */
+0x09, 0x03,         /*          Usage (03h),                    */
+0x91, 0x02,         /*          Output (Variable),              */
+0xC0,               /*      End Collection,                     */
+0xC0                /*  End Collection                          */
+};
+
 static __u8 momo_rdesc_fixed[] = {
 0x05, 0x01,         /*  Usage Page (Desktop),               */
 0x09, 0x04,         /*  Usage (Joystik),                    */
@@ -275,6 +343,15 @@ static __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		}
 		break;
 
+	case USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL:
+		if (*rsize == FV_RDESC_ORIG_SIZE) {
+			hid_info(hdev,
+				"fixing up Logitech Formula Vibration report descriptor\n");
+			rdesc = fv_rdesc_fixed;
+			*rsize = sizeof(fv_rdesc_fixed);
+		}
+		break;
+
 	case USB_DEVICE_ID_LOGITECH_DFP_WHEEL:
 		if (*rsize == DFP_RDESC_ORIG_SIZE) {
 			hid_info(hdev,
-- 
cgit 


From 348cbaa800f8161168b20f85f72abb541c145132 Mon Sep 17 00:00:00 2001
From: Simon Wood <simon@mungewell.org>
Date: Thu, 10 Oct 2013 08:20:13 -0600
Subject: HID: lg: fix Report Descriptor for Logitech MOMO Force (Black)

By default the Logitech MOMO Force (Black) presents a combined accel/brake
axis ('Y'). This patch modifies the HID descriptor to present seperate
accel/brake axes ('Y' and 'Z').

Signed-off-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-lg.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)

diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c
index 1bfd292cac8f..06eb45fa6331 100644
--- a/drivers/hid/hid-lg.c
+++ b/drivers/hid/hid-lg.c
@@ -47,6 +47,7 @@
 #define DFP_RDESC_ORIG_SIZE	97
 #define FV_RDESC_ORIG_SIZE	130
 #define MOMO_RDESC_ORIG_SIZE	87
+#define MOMO2_RDESC_ORIG_SIZE	87
 
 /* Fixed report descriptors for Logitech Driving Force (and Pro)
  * wheel controllers
@@ -284,6 +285,54 @@ static __u8 momo_rdesc_fixed[] = {
 0xC0                /*  End Collection                      */
 };
 
+static __u8 momo2_rdesc_fixed[] = {
+0x05, 0x01,         /*  Usage Page (Desktop),               */
+0x09, 0x04,         /*  Usage (Joystik),                    */
+0xA1, 0x01,         /*  Collection (Application),           */
+0xA1, 0x02,         /*      Collection (Logical),           */
+0x95, 0x01,         /*          Report Count (1),           */
+0x75, 0x0A,         /*          Report Size (10),           */
+0x15, 0x00,         /*          Logical Minimum (0),        */
+0x26, 0xFF, 0x03,   /*          Logical Maximum (1023),     */
+0x35, 0x00,         /*          Physical Minimum (0),       */
+0x46, 0xFF, 0x03,   /*          Physical Maximum (1023),    */
+0x09, 0x30,         /*          Usage (X),                  */
+0x81, 0x02,         /*          Input (Variable),           */
+0x95, 0x0A,         /*          Report Count (10),          */
+0x75, 0x01,         /*          Report Size (1),            */
+0x25, 0x01,         /*          Logical Maximum (1),        */
+0x45, 0x01,         /*          Physical Maximum (1),       */
+0x05, 0x09,         /*          Usage Page (Button),        */
+0x19, 0x01,         /*          Usage Minimum (01h),        */
+0x29, 0x0A,         /*          Usage Maximum (0Ah),        */
+0x81, 0x02,         /*          Input (Variable),           */
+0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
+0x09, 0x00,         /*          Usage (00h),                */
+0x95, 0x04,         /*          Report Count (4),           */
+0x81, 0x02,         /*          Input (Variable),           */
+0x95, 0x01,         /*          Report Count (1),           */
+0x75, 0x08,         /*          Report Size (8),            */
+0x26, 0xFF, 0x00,   /*          Logical Maximum (255),      */
+0x46, 0xFF, 0x00,   /*          Physical Maximum (255),     */
+0x09, 0x01,         /*          Usage (01h),                */
+0x81, 0x02,         /*          Input (Variable),           */
+0x05, 0x01,         /*          Usage Page (Desktop),       */
+0x09, 0x31,         /*          Usage (Y),                  */
+0x81, 0x02,         /*          Input (Variable),           */
+0x09, 0x32,         /*          Usage (Z),                  */
+0x81, 0x02,         /*          Input (Variable),           */
+0x06, 0x00, 0xFF,   /*          Usage Page (FF00h),         */
+0x09, 0x00,         /*          Usage (00h),                */
+0x81, 0x02,         /*          Input (Variable),           */
+0xC0,               /*      End Collection,                 */
+0xA1, 0x02,         /*      Collection (Logical),           */
+0x09, 0x02,         /*          Usage (02h),                */
+0x95, 0x07,         /*          Report Count (7),           */
+0x91, 0x02,         /*          Output (Variable),          */
+0xC0,               /*      End Collection,                 */
+0xC0                /*  End Collection                      */
+};
+
 /*
  * Certain Logitech keyboards send in report #3 keys which are far
  * above the logical maximum described in descriptor. This extends
@@ -343,6 +392,15 @@ static __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		}
 		break;
 
+	case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2:
+		if (*rsize == MOMO2_RDESC_ORIG_SIZE) {
+			hid_info(hdev,
+				"fixing up Logitech Momo Racing Force (Black) report descriptor\n");
+			rdesc = momo2_rdesc_fixed;
+			*rsize = sizeof(momo2_rdesc_fixed);
+		}
+		break;
+
 	case USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL:
 		if (*rsize == FV_RDESC_ORIG_SIZE) {
 			hid_info(hdev,
-- 
cgit 


From 362ecc7c38ac3806d2afca92b25094e6063a0f17 Mon Sep 17 00:00:00 2001
From: Simon Wood <simon@mungewell.org>
Date: Thu, 10 Oct 2013 08:20:14 -0600
Subject: HID: Correct Kconfig MOMO description

Minor correction to the description in Kconfig.

The Logitect MOMO wheel is actually handled by the LOGITECH_WHEELS (hid-lg4ff)
section, not by the LOGITECH_FF (hid-lgff).

Signed-off-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/Kconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 46fd27f6f026..aee718269ab3 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -362,7 +362,6 @@ config LOGITECH_FF
 	  - Logitech WingMan Force 3D
 	  - Logitech Formula Force EX
 	  - Logitech WingMan Formula Force GP
-	  - Logitech MOMO Force wheel
 
 	  and if you want to enable force feedback for them.
 	  Note: if you say N here, this device will still be supported, but without
-- 
cgit 


From f350f823867e82d885278346a75ed33b63248c42 Mon Sep 17 00:00:00 2001
From: Heiko Stuebner <heiko@sntech.de>
Date: Sun, 29 Sep 2013 16:15:35 +0200
Subject: ARM: rockchip: fix wrong use of non-existent CONFIG_LOCAL_TIMERS

CONFIG_LOCAL_TIMERS was removed in february, so the twd never gets
selected. Fix this by making the twd depend on SMP directly.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
 arch/arm/mach-rockchip/Kconfig | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index 25ee12b21f01..a8487337344a 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -5,9 +5,8 @@ config ARCH_ROCKCHIP
 	select ARCH_REQUIRE_GPIOLIB
 	select ARM_GIC
 	select CACHE_L2X0
-	select HAVE_ARM_TWD if LOCAL_TIMERS
+	select HAVE_ARM_TWD if SMP
 	select HAVE_SMP
-	select LOCAL_TIMERS if SMP
 	select COMMON_CLK
 	select GENERIC_CLOCKEVENTS
 	select DW_APB_TIMER_OF
-- 
cgit 


From 1b6dc1e478c85e6028ce3a918d484ecbcd52173e Mon Sep 17 00:00:00 2001
From: Heiko Stuebner <heiko@sntech.de>
Date: Wed, 3 Jul 2013 23:28:38 +0200
Subject: ARM: rockchip: remove obsolete rockchip,config properties

These were used only in one intermediate variant of the pinctrl
driver but forgotten in the dtsi file. rockchip,config properties are
neither part of the actual binding nor handled by the pinctrl driver
at all, so remove them.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
 arch/arm/boot/dts/rk3066a.dtsi | 22 ----------------------
 1 file changed, 22 deletions(-)

diff --git a/arch/arm/boot/dts/rk3066a.dtsi b/arch/arm/boot/dts/rk3066a.dtsi
index 56bfac93d3f6..98f3597a6a35 100644
--- a/arch/arm/boot/dts/rk3066a.dtsi
+++ b/arch/arm/boot/dts/rk3066a.dtsi
@@ -191,17 +191,14 @@
 				uart0_xfer: uart0-xfer {
 					rockchip,pins = <RK_GPIO1 0 RK_FUNC_1 &pcfg_pull_default>,
 							<RK_GPIO1 1 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 
 				uart0_cts: uart0-cts {
 					rockchip,pins = <RK_GPIO1 2 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 
 				uart0_rts: uart0-rts {
 					rockchip,pins = <RK_GPIO1 3 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 			};
 
@@ -209,17 +206,14 @@
 				uart1_xfer: uart1-xfer {
 					rockchip,pins = <RK_GPIO1 4 RK_FUNC_1 &pcfg_pull_default>,
 							<RK_GPIO1 5 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 
 				uart1_cts: uart1-cts {
 					rockchip,pins = <RK_GPIO1 6 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 
 				uart1_rts: uart1-rts {
 					rockchip,pins = <RK_GPIO1 7 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 			};
 
@@ -227,7 +221,6 @@
 				uart2_xfer: uart2-xfer {
 					rockchip,pins = <RK_GPIO1 8 RK_FUNC_1 &pcfg_pull_default>,
 							<RK_GPIO1 9 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 				/* no rts / cts for uart2 */
 			};
@@ -236,44 +229,36 @@
 				uart3_xfer: uart3-xfer {
 					rockchip,pins = <RK_GPIO3 27 RK_FUNC_1 &pcfg_pull_default>,
 							<RK_GPIO3 28 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 
 				uart3_cts: uart3-cts {
 					rockchip,pins = <RK_GPIO3 29 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 
 				uart3_rts: uart3-rts {
 					rockchip,pins = <RK_GPIO3 30 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 			};
 
 			sd0 {
 				sd0_clk: sd0-clk {
 					rockchip,pins = <RK_GPIO3 8 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 
 				sd0_cmd: sd0-cmd {
 					rockchip,pins = <RK_GPIO3 9 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 
 				sd0_cd: sd0-cd {
 					rockchip,pins = <RK_GPIO3 14 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 
 				sd0_wp: sd0-wp {
 					rockchip,pins = <RK_GPIO3 15 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 
 				sd0_bus1: sd0-bus-width1 {
 					rockchip,pins = <RK_GPIO3 10 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 
 				sd0_bus4: sd0-bus-width4 {
@@ -281,34 +266,28 @@
 							<RK_GPIO3 11 RK_FUNC_1 &pcfg_pull_default>,
 							<RK_GPIO3 12 RK_FUNC_1 &pcfg_pull_default>,
 							<RK_GPIO3 13 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 			};
 
 			sd1 {
 				sd1_clk: sd1-clk {
 					rockchip,pins = <RK_GPIO3 21 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 
 				sd1_cmd: sd1-cmd {
 					rockchip,pins = <RK_GPIO3 16 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 
 				sd1_cd: sd1-cd {
 					rockchip,pins = <RK_GPIO3 22 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 
 				sd1_wp: sd1-wp {
 					rockchip,pins = <RK_GPIO3 23 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 
 				sd1_bus1: sd1-bus-width1 {
 					rockchip,pins = <RK_GPIO3 17 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 
 				sd1_bus4: sd1-bus-width4 {
@@ -316,7 +295,6 @@
 							<RK_GPIO3 18 RK_FUNC_1 &pcfg_pull_default>,
 							<RK_GPIO3 19 RK_FUNC_1 &pcfg_pull_default>,
 							<RK_GPIO3 20 RK_FUNC_1 &pcfg_pull_default>;
-					rockchip,config = <&pcfg_pull_default>;
 				};
 			};
 		};
-- 
cgit 


From f75efdd7687a366cb8a096c40bd44430abdf0cab Mon Sep 17 00:00:00 2001
From: Heiko Stuebner <heiko@sntech.de>
Date: Sun, 29 Sep 2013 13:25:08 +0200
Subject: ARM: rockchip: move shared dt properties to common source file

The rk3188 SoC shares a lot of peripherals with the rk3066 SoC,
but not all. Therefore move the common parts to a shared dtsi.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
 arch/arm/boot/dts/rk3066a.dtsi |  98 +---------------------------------
 arch/arm/boot/dts/rk3xxx.dtsi  | 117 +++++++++++++++++++++++++++++++++++++++++
 2 files changed, 118 insertions(+), 97 deletions(-)
 create mode 100644 arch/arm/boot/dts/rk3xxx.dtsi

diff --git a/arch/arm/boot/dts/rk3066a.dtsi b/arch/arm/boot/dts/rk3066a.dtsi
index 56bfac93d3f6..2218c64410de 100644
--- a/arch/arm/boot/dts/rk3066a.dtsi
+++ b/arch/arm/boot/dts/rk3066a.dtsi
@@ -14,15 +14,12 @@
  */
 
 #include <dt-bindings/gpio/gpio.h>
-#include <dt-bindings/interrupt-controller/irq.h>
-#include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/pinctrl/rockchip.h>
-#include "skeleton.dtsi"
+#include "rk3xxx.dtsi"
 #include "rk3066a-clocks.dtsi"
 
 / {
 	compatible = "rockchip,rk3066a";
-	interrupt-parent = <&gic>;
 
 	cpus {
 		#address-cells = <1>;
@@ -43,33 +40,6 @@
 	};
 
 	soc {
-		#address-cells = <1>;
-		#size-cells = <1>;
-		compatible = "simple-bus";
-		ranges;
-
-		gic: interrupt-controller@1013d000 {
-			compatible = "arm,cortex-a9-gic";
-			interrupt-controller;
-			#interrupt-cells = <3>;
-			reg = <0x1013d000 0x1000>,
-			      <0x1013c100 0x0100>;
-		};
-
-		L2: l2-cache-controller@10138000 {
-			compatible = "arm,pl310-cache";
-			reg = <0x10138000 0x1000>;
-			cache-unified;
-			cache-level = <2>;
-		};
-
-		local-timer@1013c600 {
-			compatible = "arm,cortex-a9-twd-timer";
-			reg = <0x1013c600 0x20>;
-			interrupts = <GIC_PPI 13 0x304>;
-			clocks = <&dummy150m>;
-		};
-
 		timer@20038000 {
 			compatible = "snps,dw-apb-timer-osc";
 			reg = <0x20038000 0x100>;
@@ -320,71 +290,5 @@
 				};
 			};
 		};
-
-		uart0: serial@10124000 {
-			compatible = "snps,dw-apb-uart";
-			reg = <0x10124000 0x400>;
-			interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
-			reg-shift = <2>;
-			reg-io-width = <1>;
-			clocks = <&clk_gates1 8>;
-			status = "disabled";
-		};
-
-		uart1: serial@10126000 {
-			compatible = "snps,dw-apb-uart";
-			reg = <0x10126000 0x400>;
-			interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
-			reg-shift = <2>;
-			reg-io-width = <1>;
-			clocks = <&clk_gates1 10>;
-			status = "disabled";
-		};
-
-		uart2: serial@20064000 {
-			compatible = "snps,dw-apb-uart";
-			reg = <0x20064000 0x400>;
-			interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
-			reg-shift = <2>;
-			reg-io-width = <1>;
-			clocks = <&clk_gates1 12>;
-			status = "disabled";
-		};
-
-		uart3: serial@20068000 {
-			compatible = "snps,dw-apb-uart";
-			reg = <0x20068000 0x400>;
-			interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
-			reg-shift = <2>;
-			reg-io-width = <1>;
-			clocks = <&clk_gates1 14>;
-			status = "disabled";
-		};
-
-		dwmmc@10214000 {
-			compatible = "rockchip,rk2928-dw-mshc";
-			reg = <0x10214000 0x1000>;
-			interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
-			#address-cells = <1>;
-			#size-cells = <0>;
-
-			clocks = <&clk_gates5 10>, <&clk_gates2 11>;
-			clock-names = "biu", "ciu";
-
-			status = "disabled";
-		};
-
-		dwmmc@10218000 {
-			compatible = "rockchip,rk2928-dw-mshc";
-			reg = <0x10218000 0x1000>;
-			interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
-			#address-cells = <1>;
-			#size-cells = <0>;
-
-			clocks = <&clk_gates5 11>, <&clk_gates2 13>;
-			clock-names = "biu", "ciu";
-
-			status = "disabled";
-		};
 	};
 };
diff --git a/arch/arm/boot/dts/rk3xxx.dtsi b/arch/arm/boot/dts/rk3xxx.dtsi
new file mode 100644
index 000000000000..fd3e47699e54
--- /dev/null
+++ b/arch/arm/boot/dts/rk3xxx.dtsi
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2013 MundoReader S.L.
+ * Author: Heiko Stuebner <heiko@sntech.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include "skeleton.dtsi"
+
+/ {
+	interrupt-parent = <&gic>;
+
+	soc {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "simple-bus";
+		ranges;
+
+		gic: interrupt-controller@1013d000 {
+			compatible = "arm,cortex-a9-gic";
+			interrupt-controller;
+			#interrupt-cells = <3>;
+			reg = <0x1013d000 0x1000>,
+			      <0x1013c100 0x0100>;
+		};
+
+		L2: l2-cache-controller@10138000 {
+			compatible = "arm,pl310-cache";
+			reg = <0x10138000 0x1000>;
+			cache-unified;
+			cache-level = <2>;
+		};
+
+		local-timer@1013c600 {
+			compatible = "arm,cortex-a9-twd-timer";
+			reg = <0x1013c600 0x20>;
+			interrupts = <GIC_PPI 13 0x304>;
+			clocks = <&dummy150m>;
+		};
+
+		uart0: serial@10124000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x10124000 0x400>;
+			interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <1>;
+			clocks = <&clk_gates1 8>;
+			status = "disabled";
+		};
+
+		uart1: serial@10126000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x10126000 0x400>;
+			interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <1>;
+			clocks = <&clk_gates1 10>;
+			status = "disabled";
+		};
+
+		uart2: serial@20064000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x20064000 0x400>;
+			interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <1>;
+			clocks = <&clk_gates1 12>;
+			status = "disabled";
+		};
+
+		uart3: serial@20068000 {
+			compatible = "snps,dw-apb-uart";
+			reg = <0x20068000 0x400>;
+			interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+			reg-shift = <2>;
+			reg-io-width = <1>;
+			clocks = <&clk_gates1 14>;
+			status = "disabled";
+		};
+
+		dwmmc@10214000 {
+			compatible = "rockchip,rk2928-dw-mshc";
+			reg = <0x10214000 0x1000>;
+			interrupts = <GIC_SPI 23 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			clocks = <&clk_gates5 10>, <&clk_gates2 11>;
+			clock-names = "biu", "ciu";
+
+			status = "disabled";
+		};
+
+		dwmmc@10218000 {
+			compatible = "rockchip,rk2928-dw-mshc";
+			reg = <0x10218000 0x1000>;
+			interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			clocks = <&clk_gates5 11>, <&clk_gates2 13>;
+			clock-names = "biu", "ciu";
+
+			status = "disabled";
+		};
+	};
+};
-- 
cgit 


From f95a2b3d98f349eecd97d8adef7085323acec7b7 Mon Sep 17 00:00:00 2001
From: Heiko Stuebner <heiko@sntech.de>
Date: Mon, 30 Sep 2013 16:29:55 +0200
Subject: ARM: rockchip: enable arm-global-timer

RK2928 and RK3066 contain a dw_apb timer component, while the rk3188 uses
a slightly similar but still different timer component. But all of them
support the ARM-global-timer that got added as clocksource driver recently.

So enable support for it to get a working clocksource for rk3188.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
 arch/arm/boot/dts/rk3xxx.dtsi  | 7 +++++++
 arch/arm/mach-rockchip/Kconfig | 2 ++
 2 files changed, 9 insertions(+)

diff --git a/arch/arm/boot/dts/rk3xxx.dtsi b/arch/arm/boot/dts/rk3xxx.dtsi
index fd3e47699e54..0fcbcfd67de2 100644
--- a/arch/arm/boot/dts/rk3xxx.dtsi
+++ b/arch/arm/boot/dts/rk3xxx.dtsi
@@ -41,6 +41,13 @@
 			cache-level = <2>;
 		};
 
+		global-timer@1013c200 {
+			compatible = "arm,cortex-a9-global-timer";
+			reg = <0x1013c200 0x20>;
+			interrupts = <GIC_PPI 11 0x304>;
+			clocks = <&dummy150m>;
+		};
+
 		local-timer@1013c600 {
 			compatible = "arm,cortex-a9-twd-timer";
 			reg = <0x1013c600 0x20>;
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index 25ee12b21f01..6fef4647b6fe 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -11,6 +11,8 @@ config ARCH_ROCKCHIP
 	select COMMON_CLK
 	select GENERIC_CLOCKEVENTS
 	select DW_APB_TIMER_OF
+	select ARM_GLOBAL_TIMER
+	select CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
 	help
 	  Support for Rockchip's Cortex-A9 Single-to-Quad-Core-SoCs
 	  containing the RK2928, RK30xx and RK31xx series.
-- 
cgit 


From 9586609619b50d1fea49986a6f8f931bd58593b1 Mon Sep 17 00:00:00 2001
From: Heiko Stuebner <heiko@sntech.de>
Date: Mon, 14 Oct 2013 17:28:32 +0200
Subject: ARM: rockchip: add dts for bqcurie2 tablet

The BQ Curie2 is a tablet based on the rk3066a SoC.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
 arch/arm/boot/dts/rk3066a-bqcurie2.dts | 109 +++++++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 arch/arm/boot/dts/rk3066a-bqcurie2.dts

diff --git a/arch/arm/boot/dts/rk3066a-bqcurie2.dts b/arch/arm/boot/dts/rk3066a-bqcurie2.dts
new file mode 100644
index 000000000000..035df4053c21
--- /dev/null
+++ b/arch/arm/boot/dts/rk3066a-bqcurie2.dts
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2013 MundoReader S.L.
+ * Author: Heiko Stuebner <heiko@sntech.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+/dts-v1/;
+#include "rk3066a.dtsi"
+
+/ {
+	model = "bq Curie 2";
+
+	memory {
+		reg = <0x60000000 0x40000000>;
+	};
+
+	soc {
+		uart0: serial@10124000 {
+			status = "okay";
+		};
+
+		uart1: serial@10126000 {
+			status = "okay";
+		};
+
+		uart2: serial@20064000 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&uart2_xfer>;
+			status = "okay";
+		};
+
+		uart3: serial@20068000 {
+			status = "okay";
+		};
+
+		vcc_sd0: fixed-regulator {
+			compatible = "regulator-fixed";
+			regulator-name = "sdmmc-supply";
+			regulator-min-microvolt = <3000000>;
+			regulator-max-microvolt = <3000000>;
+			gpio = <&gpio3 7 GPIO_ACTIVE_LOW>;
+			startup-delay-us = <100000>;
+		};
+
+		dwmmc@10214000 { /* sdmmc */
+			num-slots = <1>;
+			status = "okay";
+
+			pinctrl-names = "default";
+			pinctrl-0 = <&sd0_clk &sd0_cmd &sd0_cd &sd0_bus4>;
+			vmmc-supply = <&vcc_sd0>;
+
+			slot@0 {
+				reg = <0>;
+				bus-width = <4>;
+				disable-wp;
+			};
+		};
+
+		dwmmc@10218000 { /* wifi */
+			num-slots = <1>;
+			status = "okay";
+			non-removable;
+
+			pinctrl-names = "default";
+			pinctrl-0 = <&sd1_clk &sd1_cmd &sd1_bus4>;
+
+			slot@0 {
+				reg = <0>;
+				bus-width = <4>;
+				disable-wp;
+			};
+		};
+
+		gpio-keys {
+			compatible = "gpio-keys";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			autorepeat;
+
+			button@0 {
+				gpios = <&gpio6 2 GPIO_ACTIVE_LOW>; /* GPIO6_A2 */
+				linux,code = <116>;
+				label = "GPIO Key Power";
+				linux,input-type = <1>;
+				gpio-key,wakeup = <1>;
+				debounce-interval = <100>;
+			};
+			button@1 {
+				gpios = <&gpio4 21 GPIO_ACTIVE_LOW>; /* GPIO4_C5 */
+				linux,code = <104>;
+				label = "GPIO Key Vol-";
+				linux,input-type = <1>;
+				gpio-key,wakeup = <0>;
+				debounce-interval = <100>;
+			};
+			/* VOL+ comes somehow thru the ADC */
+		};
+	};
+};
-- 
cgit 


From 6bcf60f8d557f15c85faf82ccbfc38cf986c45cc Mon Sep 17 00:00:00 2001
From: Heiko Stuebner <heiko@sntech.de>
Date: Mon, 14 Oct 2013 17:34:02 +0200
Subject: ARM: rockchip: add support for rk3188 and Radxa Rock board

Basic devicetree files for the rk3188 SoC. Also provided is a board
dts file for the upcoming Radxa Rock board using this SoC.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---
 arch/arm/boot/dts/rk3188-clocks.dtsi   | 289 +++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/rk3188-radxarock.dts |  80 +++++++++
 arch/arm/boot/dts/rk3188.dtsi          | 253 +++++++++++++++++++++++++++++
 3 files changed, 622 insertions(+)
 create mode 100644 arch/arm/boot/dts/rk3188-clocks.dtsi
 create mode 100644 arch/arm/boot/dts/rk3188-radxarock.dts
 create mode 100644 arch/arm/boot/dts/rk3188.dtsi

diff --git a/arch/arm/boot/dts/rk3188-clocks.dtsi b/arch/arm/boot/dts/rk3188-clocks.dtsi
new file mode 100644
index 000000000000..b1b92dc245ce
--- /dev/null
+++ b/arch/arm/boot/dts/rk3188-clocks.dtsi
@@ -0,0 +1,289 @@
+/*
+ * Copyright (c) 2013 MundoReader S.L.
+ * Author: Heiko Stuebner <heiko@sntech.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+/ {
+	clocks {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		/*
+		 * This is a dummy clock, to be used as placeholder on
+		 * other mux clocks when a specific parent clock is not
+		 * yet implemented. It should be dropped when the driver
+		 * is complete.
+		 */
+		dummy: dummy {
+			compatible = "fixed-clock";
+			clock-frequency = <0>;
+			#clock-cells = <0>;
+		};
+
+		xin24m: xin24m {
+			compatible = "fixed-clock";
+			clock-frequency = <24000000>;
+			#clock-cells = <0>;
+		};
+
+		dummy48m: dummy48m {
+			compatible = "fixed-clock";
+			clock-frequency = <48000000>;
+			#clock-cells = <0>;
+		};
+
+		dummy150m: dummy150m {
+			compatible = "fixed-clock";
+			clock-frequency = <150000000>;
+			#clock-cells = <0>;
+		};
+
+		clk_gates0: gate-clk@200000d0 {
+			compatible = "rockchip,rk2928-gate-clk";
+			reg = <0x200000d0 0x4>;
+			clocks = <&dummy150m>, <&dummy>,
+				 <&dummy>, <&dummy>,
+				 <&dummy>, <&dummy>,
+				 <&dummy>, <&dummy>,
+				 <&dummy>, <&dummy>,
+				 <&dummy>, <&dummy>,
+				 <&dummy>, <&dummy>,
+				 <&dummy>, <&dummy>;
+
+			clock-output-names =
+				"gate_core_periph", "gate_cpu_gpll",
+				"gate_ddrphy", "gate_aclk_cpu",
+				"gate_hclk_cpu", "gate_pclk_cpu",
+				"gate_atclk_cpu", "gate_aclk_core",
+				"reserved", "gate_i2s0",
+				"gate_i2s0_frac", "reserved",
+				"reserved", "gate_spdif",
+				"gate_spdif_frac", "gate_testclk";
+
+			#clock-cells = <1>;
+		};
+
+		clk_gates1: gate-clk@200000d4 {
+			compatible = "rockchip,rk2928-gate-clk";
+			reg = <0x200000d4 0x4>;
+			clocks = <&xin24m>, <&xin24m>,
+				 <&xin24m>, <&dummy>,
+				 <&dummy>, <&xin24m>,
+				 <&xin24m>, <&dummy>,
+				 <&xin24m>, <&dummy>,
+				 <&xin24m>, <&dummy>,
+				 <&xin24m>, <&dummy>,
+				 <&xin24m>, <&dummy>;
+
+			clock-output-names =
+				"gate_timer0", "gate_timer1",
+				"gate_timer3", "gate_jtag",
+				"gate_aclk_lcdc1_src", "gate_otgphy0",
+				"gate_otgphy1", "gate_ddr_gpll",
+				"gate_uart0", "gate_frac_uart0",
+				"gate_uart1", "gate_frac_uart1",
+				"gate_uart2", "gate_frac_uart2",
+				"gate_uart3", "gate_frac_uart3";
+
+			#clock-cells = <1>;
+		};
+
+		clk_gates2: gate-clk@200000d8 {
+			compatible = "rockchip,rk2928-gate-clk";
+			reg = <0x200000d8 0x4>;
+			clocks = <&clk_gates2 1>, <&dummy>,
+				 <&dummy>, <&dummy>,
+				 <&dummy>, <&dummy>,
+				 <&clk_gates2 3>, <&dummy>,
+				 <&dummy>, <&dummy>,
+				 <&dummy>, <&dummy48m>,
+				 <&dummy>, <&dummy48m>,
+				 <&dummy>, <&dummy>;
+
+			clock-output-names =
+				"gate_periph_src", "gate_aclk_periph",
+				"gate_hclk_periph", "gate_pclk_periph",
+				"gate_smc", "gate_mac",
+				"gate_hsadc", "gate_hsadc_frac",
+				"gate_saradc", "gate_spi0",
+				"gate_spi1", "gate_mmc0",
+				"gate_mac_lbtest", "gate_mmc1",
+				"gate_emmc", "reserved";
+
+			#clock-cells = <1>;
+		};
+
+		clk_gates3: gate-clk@200000dc {
+			compatible = "rockchip,rk2928-gate-clk";
+			reg = <0x200000dc 0x4>;
+			clocks = <&dummy>, <&dummy>,
+				 <&dummy>, <&dummy>,
+				 <&xin24m>, <&xin24m>,
+				 <&dummy>, <&dummy>,
+				 <&xin24m>, <&dummy>,
+				 <&dummy>, <&dummy>,
+				 <&dummy>, <&dummy>,
+				 <&xin24m>, <&dummy>;
+
+			clock-output-names =
+				"gate_aclk_lcdc0_src", "gate_dclk_lcdc0",
+				"gate_dclk_lcdc1", "gate_pclkin_cif0",
+				"gate_timer2", "gate_timer4",
+				"gate_hsicphy", "gate_cif0_out",
+				"gate_timer5", "gate_aclk_vepu",
+				"gate_hclk_vepu", "gate_aclk_vdpu",
+				"gate_hclk_vdpu", "reserved",
+				"gate_timer6", "gate_aclk_gpu_src";
+
+			#clock-cells = <1>;
+		};
+
+		clk_gates4: gate-clk@200000e0 {
+			compatible = "rockchip,rk2928-gate-clk";
+			reg = <0x200000e0 0x4>;
+			clocks = <&clk_gates2 2>, <&clk_gates2 3>,
+				 <&clk_gates2 1>, <&clk_gates2 1>,
+				 <&clk_gates2 1>, <&clk_gates2 2>,
+				 <&clk_gates2 2>, <&clk_gates2 2>,
+				 <&clk_gates0 4>, <&clk_gates0 4>,
+				 <&clk_gates0 3>, <&dummy>,
+				 <&clk_gates0 3>, <&dummy>,
+				 <&dummy>, <&dummy>;
+
+			clock-output-names =
+				"gate_hclk_peri_axi_matrix", "gate_pclk_peri_axi_matrix",
+				"gate_aclk_cpu_peri", "gate_aclk_peri_axi_matrix",
+				"gate_aclk_pei_niu", "gate_hclk_usb_peri",
+				"gate_hclk_peri_ahb_arbi", "gate_hclk_emem_peri",
+				"gate_hclk_cpubus", "gate_hclk_ahb2apb",
+				"gate_aclk_strc_sys", "reserved",
+				"gate_aclk_intmem", "reserved",
+				"gate_hclk_imem1", "gate_hclk_imem0";
+
+			#clock-cells = <1>;
+		};
+
+		clk_gates5: gate-clk@200000e4 {
+			compatible = "rockchip,rk2928-gate-clk";
+			reg = <0x200000e4 0x4>;
+			clocks = <&clk_gates0 3>, <&clk_gates2 1>,
+				 <&clk_gates0 5>, <&clk_gates0 5>,
+				 <&clk_gates0 5>, <&clk_gates0 5>,
+				 <&clk_gates0 4>, <&clk_gates0 5>,
+				 <&clk_gates2 1>, <&clk_gates2 2>,
+				 <&clk_gates2 2>, <&clk_gates2 2>,
+				 <&clk_gates2 2>, <&clk_gates4 5>;
+
+			clock-output-names =
+				"gate_aclk_dmac1", "gate_aclk_dmac2",
+				"gate_pclk_efuse", "gate_pclk_tzpc",
+				"gate_pclk_grf", "gate_pclk_pmu",
+				"gate_hclk_rom", "gate_pclk_ddrupctl",
+				"gate_aclk_smc", "gate_hclk_nandc",
+				"gate_hclk_mmc0", "gate_hclk_mmc1",
+				"gate_hclk_emmc", "gate_hclk_otg0";
+
+			#clock-cells = <1>;
+		};
+
+		clk_gates6: gate-clk@200000e8 {
+			compatible = "rockchip,rk2928-gate-clk";
+			reg = <0x200000e8 0x4>;
+			clocks = <&clk_gates3 0>, <&clk_gates0 4>,
+				 <&clk_gates0 4>, <&clk_gates1 4>,
+				 <&clk_gates0 4>, <&clk_gates3 0>,
+				 <&dummy>, <&dummy>,
+				 <&clk_gates3 0>, <&clk_gates0 4>,
+				 <&clk_gates0 4>, <&clk_gates1 4>,
+				 <&clk_gates0 4>, <&clk_gates3 0>;
+
+			clock-output-names =
+				"gate_aclk_lcdc0", "gate_hclk_lcdc0",
+				"gate_hclk_lcdc1", "gate_aclk_lcdc1",
+				"gate_hclk_cif0", "gate_aclk_cif0",
+				"reserved", "reserved",
+				"gate_aclk_ipp", "gate_hclk_ipp",
+				"gate_hclk_rga", "gate_aclk_rga",
+				"gate_hclk_vio_bus", "gate_aclk_vio0";
+
+			#clock-cells = <1>;
+		};
+
+		clk_gates7: gate-clk@200000ec {
+			compatible = "rockchip,rk2928-gate-clk";
+			reg = <0x200000ec 0x4>;
+			clocks = <&clk_gates2 2>, <&clk_gates0 4>,
+				 <&clk_gates0 4>, <&dummy>,
+				 <&dummy>, <&clk_gates2 2>,
+				 <&clk_gates2 2>, <&clk_gates0 5>,
+				 <&dummy>, <&clk_gates0 5>,
+				 <&clk_gates0 5>, <&clk_gates2 3>,
+				 <&clk_gates2 3>, <&clk_gates2 3>,
+				 <&clk_gates2 3>, <&clk_gates2 3>;
+
+			clock-output-names =
+				"gate_hclk_emac", "gate_hclk_spdif",
+				"gate_hclk_i2s0_2ch", "gate_hclk_otg1",
+				"gate_hclk_hsic", "gate_hclk_hsadc",
+				"gate_hclk_pidf", "gate_pclk_timer0",
+				"reserved", "gate_pclk_timer2",
+				"gate_pclk_pwm01", "gate_pclk_pwm23",
+				"gate_pclk_spi0", "gate_pclk_spi1",
+				"gate_pclk_saradc", "gate_pclk_wdt";
+
+			#clock-cells = <1>;
+		};
+
+		clk_gates8: gate-clk@200000f0 {
+			compatible = "rockchip,rk2928-gate-clk";
+			reg = <0x200000f0 0x4>;
+			clocks = <&clk_gates0 5>, <&clk_gates0 5>,
+				 <&clk_gates2 3>, <&clk_gates2 3>,
+				 <&clk_gates0 5>, <&clk_gates0 5>,
+				 <&clk_gates2 3>, <&clk_gates2 3>,
+				 <&clk_gates2 3>, <&clk_gates0 5>,
+				 <&clk_gates0 5>, <&clk_gates0 5>,
+				 <&clk_gates2 3>, <&dummy>;
+
+			clock-output-names =
+				"gate_pclk_uart0", "gate_pclk_uart1",
+				"gate_pclk_uart2", "gate_pclk_uart3",
+				"gate_pclk_i2c0", "gate_pclk_i2c1",
+				"gate_pclk_i2c2", "gate_pclk_i2c3",
+				"gate_pclk_i2c4", "gate_pclk_gpio0",
+				"gate_pclk_gpio1", "gate_pclk_gpio2",
+				"gate_pclk_gpio3", "gate_aclk_gps";
+
+			#clock-cells = <1>;
+		};
+
+		clk_gates9: gate-clk@200000f4 {
+			compatible = "rockchip,rk2928-gate-clk";
+			reg = <0x200000f4 0x4>;
+			clocks = <&dummy>, <&dummy>,
+				 <&dummy>, <&dummy>,
+				 <&dummy>, <&dummy>,
+				 <&dummy>, <&dummy>;
+
+			clock-output-names =
+				"gate_clk_core_dbg", "gate_pclk_dbg",
+				"gate_clk_trace", "gate_atclk",
+				"gate_clk_l2c", "gate_aclk_vio1",
+				"gate_pclk_publ", "gate_aclk_gpu";
+
+			#clock-cells = <1>;
+		};
+	};
+
+};
diff --git a/arch/arm/boot/dts/rk3188-radxarock.dts b/arch/arm/boot/dts/rk3188-radxarock.dts
new file mode 100644
index 000000000000..3ba1968a70ab
--- /dev/null
+++ b/arch/arm/boot/dts/rk3188-radxarock.dts
@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2013 Heiko Stuebner <heiko@sntech.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+/dts-v1/;
+#include "rk3188.dtsi"
+
+/ {
+	model = "Radxa Rock";
+
+	memory {
+		reg = <0x60000000 0x80000000>;
+	};
+
+	soc {
+		uart0: serial@10124000 {
+			status = "okay";
+		};
+
+		uart1: serial@10126000 {
+			status = "okay";
+		};
+
+		uart2: serial@20064000 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&uart2_xfer>;
+			status = "okay";
+		};
+
+		uart3: serial@20068000 {
+			status = "okay";
+		};
+
+		gpio-keys {
+			compatible = "gpio-keys";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			autorepeat;
+
+			button@0 {
+				gpios = <&gpio0 4 GPIO_ACTIVE_LOW>;
+				linux,code = <116>;
+				label = "GPIO Key Power";
+				linux,input-type = <1>;
+				gpio-key,wakeup = <1>;
+				debounce-interval = <100>;
+			};
+		};
+
+		gpio-leds {
+			compatible = "gpio-leds";
+
+			green {
+				gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
+				default-state = "off";
+			};
+
+			yellow {
+				gpios = <&gpio0 14 GPIO_ACTIVE_LOW>;
+				default-state = "off";
+			};
+
+			sleep {
+				gpios = <&gpio0 15 0>;
+				default-state = "off";
+			};
+		};
+
+	};
+};
diff --git a/arch/arm/boot/dts/rk3188.dtsi b/arch/arm/boot/dts/rk3188.dtsi
new file mode 100644
index 000000000000..1a26b03b3649
--- /dev/null
+++ b/arch/arm/boot/dts/rk3188.dtsi
@@ -0,0 +1,253 @@
+/*
+ * Copyright (c) 2013 MundoReader S.L.
+ * Author: Heiko Stuebner <heiko@sntech.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/pinctrl/rockchip.h>
+#include "rk3xxx.dtsi"
+#include "rk3188-clocks.dtsi"
+
+/ {
+	compatible = "rockchip,rk3188";
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			next-level-cache = <&L2>;
+			reg = <0x0>;
+		};
+		cpu@1 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			next-level-cache = <&L2>;
+			reg = <0x1>;
+		};
+		cpu@2 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			next-level-cache = <&L2>;
+			reg = <0x2>;
+		};
+		cpu@3 {
+			device_type = "cpu";
+			compatible = "arm,cortex-a9";
+			next-level-cache = <&L2>;
+			reg = <0x3>;
+		};
+	};
+
+	soc {
+		global-timer@1013c200 {
+			interrupts = <GIC_PPI 11 0xf04>;
+		};
+
+		local-timer@1013c600 {
+			interrupts = <GIC_PPI 13 0xf04>;
+		};
+
+		pinctrl@20008000 {
+			compatible = "rockchip,rk3188-pinctrl";
+			reg = <0x20008000 0xa0>,
+			      <0x20008164 0x1a0>;
+			reg-names = "base", "pull";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
+
+			gpio0: gpio0@0x2000a000 {
+				compatible = "rockchip,rk3188-gpio-bank0";
+				reg = <0x2000a000 0x100>,
+				      <0x20004064 0x8>;
+				interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&clk_gates8 9>;
+
+				gpio-controller;
+				#gpio-cells = <2>;
+
+				interrupt-controller;
+				#interrupt-cells = <2>;
+			};
+
+			gpio1: gpio1@0x2003c000 {
+				compatible = "rockchip,gpio-bank";
+				reg = <0x2003c000 0x100>;
+				interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&clk_gates8 10>;
+
+				gpio-controller;
+				#gpio-cells = <2>;
+
+				interrupt-controller;
+				#interrupt-cells = <2>;
+			};
+
+			gpio2: gpio2@2003e000 {
+				compatible = "rockchip,gpio-bank";
+				reg = <0x2003e000 0x100>;
+				interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&clk_gates8 11>;
+
+				gpio-controller;
+				#gpio-cells = <2>;
+
+				interrupt-controller;
+				#interrupt-cells = <2>;
+			};
+
+			gpio3: gpio3@20080000 {
+				compatible = "rockchip,gpio-bank";
+				reg = <0x20080000 0x100>;
+				interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
+				clocks = <&clk_gates8 12>;
+
+				gpio-controller;
+				#gpio-cells = <2>;
+
+				interrupt-controller;
+				#interrupt-cells = <2>;
+			};
+
+			pcfg_pull_up: pcfg_pull_up {
+				bias-pull-up;
+			};
+
+			pcfg_pull_down: pcfg_pull_down {
+				bias-pull-down;
+			};
+
+			pcfg_pull_none: pcfg_pull_none {
+				bias-disable;
+			};
+
+			uart0 {
+				uart0_xfer: uart0-xfer {
+					rockchip,pins = <RK_GPIO1 0 RK_FUNC_1 &pcfg_pull_none>,
+							<RK_GPIO1 1 RK_FUNC_1 &pcfg_pull_none>;
+				};
+
+				uart0_cts: uart0-cts {
+					rockchip,pins = <RK_GPIO1 2 RK_FUNC_1 &pcfg_pull_none>;
+				};
+
+				uart0_rts: uart0-rts {
+					rockchip,pins = <RK_GPIO1 3 RK_FUNC_1 &pcfg_pull_none>;
+				};
+			};
+
+			uart1 {
+				uart1_xfer: uart1-xfer {
+					rockchip,pins = <RK_GPIO1 4 RK_FUNC_1 &pcfg_pull_none>,
+							<RK_GPIO1 5 RK_FUNC_1 &pcfg_pull_none>;
+				};
+
+				uart1_cts: uart1-cts {
+					rockchip,pins = <RK_GPIO1 6 RK_FUNC_1 &pcfg_pull_none>;
+				};
+
+				uart1_rts: uart1-rts {
+					rockchip,pins = <RK_GPIO1 7 RK_FUNC_1 &pcfg_pull_none>;
+				};
+			};
+
+			uart2 {
+				uart2_xfer: uart2-xfer {
+					rockchip,pins = <RK_GPIO1 8 RK_FUNC_1 &pcfg_pull_none>,
+							<RK_GPIO1 9 RK_FUNC_1 &pcfg_pull_none>;
+				};
+				/* no rts / cts for uart2 */
+			};
+
+			uart3 {
+				uart3_xfer: uart3-xfer {
+					rockchip,pins = <RK_GPIO1 10 RK_FUNC_1 &pcfg_pull_none>,
+							<RK_GPIO1 11 RK_FUNC_1 &pcfg_pull_none>;
+				};
+
+				uart3_cts: uart3-cts {
+					rockchip,pins = <RK_GPIO1 12 RK_FUNC_1 &pcfg_pull_none>;
+				};
+
+				uart3_rts: uart3-rts {
+					rockchip,pins = <RK_GPIO1 13 RK_FUNC_1 &pcfg_pull_none>;
+				};
+			};
+
+			sd0 {
+				sd0_clk: sd0-clk {
+					rockchip,pins = <RK_GPIO3 2 RK_FUNC_1 &pcfg_pull_none>;
+				};
+
+				sd0_cmd: sd0-cmd {
+					rockchip,pins = <RK_GPIO3 3 RK_FUNC_1 &pcfg_pull_none>;
+				};
+
+				sd0_cd: sd0-cd {
+					rockchip,pins = <RK_GPIO3 8 RK_FUNC_1 &pcfg_pull_none>;
+				};
+
+				sd0_wp: sd0-wp {
+					rockchip,pins = <RK_GPIO3 9 RK_FUNC_1 &pcfg_pull_none>;
+				};
+
+				sd0_pwr: sd0-pwr {
+					rockchip,pins = <RK_GPIO3 1 RK_FUNC_1 &pcfg_pull_none>;
+				};
+
+				sd0_bus1: sd0-bus-width1 {
+					rockchip,pins = <RK_GPIO3 4 RK_FUNC_1 &pcfg_pull_none>;
+				};
+
+				sd0_bus4: sd0-bus-width4 {
+					rockchip,pins = <RK_GPIO3 4 RK_FUNC_1 &pcfg_pull_none>,
+							<RK_GPIO3 5 RK_FUNC_1 &pcfg_pull_none>,
+							<RK_GPIO3 6 RK_FUNC_1 &pcfg_pull_none>,
+							<RK_GPIO3 7 RK_FUNC_1 &pcfg_pull_none>;
+				};
+			};
+
+			sd1 {
+				sd1_clk: sd1-clk {
+					rockchip,pins = <RK_GPIO3 21 RK_FUNC_1 &pcfg_pull_none>;
+				};
+
+				sd1_cmd: sd1-cmd {
+					rockchip,pins = <RK_GPIO3 16 RK_FUNC_1 &pcfg_pull_none>;
+				};
+
+				sd1_cd: sd1-cd {
+					rockchip,pins = <RK_GPIO3 22 RK_FUNC_1 &pcfg_pull_none>;
+				};
+
+				sd1_wp: sd1-wp {
+					rockchip,pins = <RK_GPIO3 23 RK_FUNC_1 &pcfg_pull_none>;
+				};
+
+				sd1_bus1: sd1-bus-width1 {
+					rockchip,pins = <RK_GPIO3 17 RK_FUNC_1 &pcfg_pull_none>;
+				};
+
+				sd1_bus4: sd1-bus-width4 {
+					rockchip,pins = <RK_GPIO3 17 RK_FUNC_1 &pcfg_pull_none>,
+							<RK_GPIO3 18 RK_FUNC_1 &pcfg_pull_none>,
+							<RK_GPIO3 19 RK_FUNC_1 &pcfg_pull_none>,
+							<RK_GPIO3 20 RK_FUNC_1 &pcfg_pull_none>;
+				};
+			};
+		};
+	};
+};
-- 
cgit 


From cd1b9dd0220d3c126b3b61c1f96f0832fc21fc61 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Thu, 10 Oct 2013 22:25:23 +0100
Subject: regmap: spi: Handle async writes of only one buffer

If the value is zero then assume it has been included in the register data
and don't send anything, minimising the number of interactions with the
hardware.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/base/regmap/regmap-spi.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/base/regmap/regmap-spi.c b/drivers/base/regmap/regmap-spi.c
index 4c506bd940f3..37f12ae7aada 100644
--- a/drivers/base/regmap/regmap-spi.c
+++ b/drivers/base/regmap/regmap-spi.c
@@ -73,7 +73,8 @@ static int regmap_spi_async_write(void *context,
 
 	spi_message_init(&async->m);
 	spi_message_add_tail(&async->t[0], &async->m);
-	spi_message_add_tail(&async->t[1], &async->m);
+	if (val)
+		spi_message_add_tail(&async->t[1], &async->m);
 
 	async->m.complete = regmap_spi_complete;
 	async->m.context = async;
-- 
cgit 


From 04c50ccf0dab02923ef888a4839bfbd00de03181 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Thu, 10 Oct 2013 22:38:29 +0100
Subject: regmap: Only send a single buffer for async I/O if writing one
 register

Extend the interface for async I/O by allowing the value buffer to be
omitted and sending the value as part of the register buffer, minimising
the number of separate hardware operations required.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/base/regmap/regmap.c | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/drivers/base/regmap/regmap.c b/drivers/base/regmap/regmap.c
index a975a601f718..d0ce2fef43a3 100644
--- a/drivers/base/regmap/regmap.c
+++ b/drivers/base/regmap/regmap.c
@@ -1157,18 +1157,23 @@ int _regmap_raw_write(struct regmap *map, unsigned int reg,
 		/* If the caller supplied the value we can use it safely. */
 		memcpy(async->work_buf, map->work_buf, map->format.pad_bytes +
 		       map->format.reg_bytes + map->format.val_bytes);
-		if (val == work_val)
-			val = async->work_buf + map->format.pad_bytes +
-				map->format.reg_bytes;
 
 		spin_lock_irqsave(&map->async_lock, flags);
 		list_add_tail(&async->list, &map->async_list);
 		spin_unlock_irqrestore(&map->async_lock, flags);
 
-		ret = map->bus->async_write(map->bus_context, async->work_buf,
-					    map->format.reg_bytes +
-					    map->format.pad_bytes,
-					    val, val_len, async);
+		if (val != work_val)
+			ret = map->bus->async_write(map->bus_context,
+						    async->work_buf,
+						    map->format.reg_bytes +
+						    map->format.pad_bytes,
+						    val, val_len, async);
+		else
+			ret = map->bus->async_write(map->bus_context,
+						    async->work_buf,
+						    map->format.reg_bytes +
+						    map->format.pad_bytes +
+						    val_len, NULL, 0, async);
 
 		if (ret != 0) {
 			dev_err(map->dev, "Failed to schedule write: %d\n",
-- 
cgit 


From 8ecf5002f4e5be54b05f98d581ffd5f8a4082546 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 12 Oct 2013 14:55:00 +0100
Subject: staging:iio:spear_adc: Fix sparse warning

The driver is casting from one __iomem pointer to another. Make sure to include
__iomem in the cast, otherwise sparse will complain with the following warning:

	drivers/staging/iio/adc/spear_adc.c:321:18: warning: cast removes address space of expression
	drivers/staging/iio/adc/spear_adc.c:320:33: warning: incorrect type in assignment (different address spaces)
	drivers/staging/iio/adc/spear_adc.c:320:33:    expected struct adc_regs_spear3xx [noderef] <asn:2>*adc_base_spear3xx
	drivers/staging/iio/adc/spear_adc.c:320:33:    got struct adc_regs_spear3xx *<noident>

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Stefan Roese <sr@denx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/spear_adc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/iio/adc/spear_adc.c b/drivers/staging/iio/adc/spear_adc.c
index fc99598b532a..e6555b6d8bcb 100644
--- a/drivers/staging/iio/adc/spear_adc.c
+++ b/drivers/staging/iio/adc/spear_adc.c
@@ -318,7 +318,7 @@ static int spear_adc_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 	info->adc_base_spear3xx =
-		(struct adc_regs_spear3xx *)info->adc_base_spear6xx;
+		(struct adc_regs_spear3xx __iomem *)info->adc_base_spear6xx;
 
 	info->clk = clk_get(dev, NULL);
 	if (IS_ERR(info->clk)) {
-- 
cgit 


From 2cd1e1d8c19adee184ce4c99b0dd586b71892837 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 12 Oct 2013 14:55:00 +0100
Subject: staging:iio:mxs-lradc: Select STMP_DEVICE

The MXS ADC driver uses the stmp_reset_block() which is only provided when the
STMP_DEVICE Kconfig symbol is selected. Hence the driver should select this
symbol. So far this has not been a problem since the driver depends on ARCH_MXS,
which already selects STMP_DEVICE, but will become necessary once we allow the
driver to be built when COMPILE_TEST is selected.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Marek Vasut <marex@denx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig
index cabc7a367db5..52d92a1cad45 100644
--- a/drivers/staging/iio/adc/Kconfig
+++ b/drivers/staging/iio/adc/Kconfig
@@ -114,6 +114,7 @@ config LPC32XX_ADC
 config MXS_LRADC
 	tristate "Freescale i.MX23/i.MX28 LRADC"
 	depends on ARCH_MXS
+	select STMP_DEVICE
 	select IIO_BUFFER
 	select IIO_TRIGGERED_BUFFER
 	help
-- 
cgit 


From ef4d4d1b8f2cda46ed483ee2f0d6f5b63bc7c020 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Sat, 12 Oct 2013 14:55:00 +0100
Subject: staging:iio: Allow to build SoC specific drivers when COMPILE_TEST is
 set

None of the SPEAr, LPC32XX or MXS ADC drivers have a compile time dependency on
their respective platform. So make it possible to build the drivers when
CONFIG_COMPILE_TEST is set. This makes it easier to compile test changes.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reviewed-by: Marek Vasut <marex@denx.de>
Cc: Stefan Roese <sr@denx.de>
Cc: Roland Stigge <stigge@antcom.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/Kconfig | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig
index 52d92a1cad45..1cf476484d77 100644
--- a/drivers/staging/iio/adc/Kconfig
+++ b/drivers/staging/iio/adc/Kconfig
@@ -102,7 +102,7 @@ config AD7280
 
 config LPC32XX_ADC
 	tristate "NXP LPC32XX ADC"
-	depends on ARCH_LPC32XX
+	depends on ARCH_LPC32XX || COMPILE_TEST
 	help
 	  Say yes here to build support for the integrated ADC inside the
 	  LPC32XX SoC. Note that this feature uses the same hardware as the
@@ -113,7 +113,7 @@ config LPC32XX_ADC
 
 config MXS_LRADC
 	tristate "Freescale i.MX23/i.MX28 LRADC"
-	depends on ARCH_MXS
+	depends on ARCH_MXS || COMPILE_TEST
 	select STMP_DEVICE
 	select IIO_BUFFER
 	select IIO_TRIGGERED_BUFFER
@@ -126,7 +126,7 @@ config MXS_LRADC
 
 config SPEAR_ADC
 	tristate "ST SPEAr ADC"
-	depends on PLAT_SPEAR
+	depends on PLAT_SPEAR || COMPILE_TEST
 	help
 	  Say yes here to build support for the integrated ADC inside the
 	  ST SPEAr SoC. Provides direct access via sysfs.
-- 
cgit 


From b4cb9fb25e9eae749f456e9e94446650389e736b Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 14 Oct 2013 13:56:16 -0700
Subject: Bluetooth: Read number of supported IAC on controller setup

When initializing a controller make sure to read out the number of
supported IAC and store its result. This value is needed to determine
if limited discoverable for BR/EDR can be configured or not.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/hci.h      |  6 ++++++
 include/net/bluetooth/hci_core.h |  1 +
 net/bluetooth/hci_core.c         |  6 +++++-
 net/bluetooth/hci_event.c        | 19 +++++++++++++++++++
 4 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index c8a91cb20173..8567f44aa618 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -815,6 +815,12 @@ struct hci_cp_host_buffer_size {
 	__le16   sco_max_pkt;
 } __packed;
 
+#define HCI_OP_READ_NUM_SUPPORTED_IAC	0x0c38
+struct hci_rp_read_num_supported_iac {
+	__u8	status;
+	__u8	num_iac;
+} __packed;
+
 #define HCI_OP_WRITE_INQUIRY_MODE	0x0c45
 
 #define HCI_MAX_EIR_LENGTH		240
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 0326b160b89a..4e208420d84c 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -159,6 +159,7 @@ struct hci_dev {
 	__u16		manufacturer;
 	__u16		lmp_subver;
 	__u16		voice_setting;
+	__u8		num_iac;
 	__u8		io_capability;
 	__s8		inq_tx_power;
 	__u16		page_scan_interval;
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 0e05edee0962..b5ef05e66a2d 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -370,6 +370,9 @@ static void bredr_setup(struct hci_request *req)
 	/* Read Voice Setting */
 	hci_req_add(req, HCI_OP_READ_VOICE_SETTING, 0, NULL);
 
+	/* Read Number of Supported IAC */
+	hci_req_add(req, HCI_OP_READ_NUM_SUPPORTED_IAC, 0, NULL);
+
 	/* Clear Event Filters */
 	flt_type = HCI_FLT_CLEAR_ALL;
 	hci_req_add(req, HCI_OP_SET_EVENT_FLT, 1, &flt_type);
@@ -2271,7 +2274,8 @@ struct hci_dev *hci_alloc_dev(void)
 	hdev->pkt_type  = (HCI_DM1 | HCI_DH1 | HCI_HV1);
 	hdev->esco_type = (ESCO_HV1);
 	hdev->link_mode = (HCI_LM_ACCEPT);
-	hdev->io_capability = 0x03; /* No Input No Output */
+	hdev->num_iac = 0x01;		/* One IAC support is mandatory */
+	hdev->io_capability = 0x03;	/* No Input No Output */
 	hdev->inq_tx_power = HCI_TX_POWER_INVALID;
 	hdev->adv_tx_power = HCI_TX_POWER_INVALID;
 
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index da2bc3d3d289..5391469ff1a5 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -418,6 +418,21 @@ static void hci_cc_write_voice_setting(struct hci_dev *hdev,
 		hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
 }
 
+static void hci_cc_read_num_supported_iac(struct hci_dev *hdev,
+					  struct sk_buff *skb)
+{
+	struct hci_rp_read_num_supported_iac *rp = (void *) skb->data;
+
+	BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
+
+	if (rp->status)
+		return;
+
+	hdev->num_iac = rp->num_iac;
+
+	BT_DBG("%s num iac %d", hdev->name, hdev->num_iac);
+}
+
 static void hci_cc_write_ssp_mode(struct hci_dev *hdev, struct sk_buff *skb)
 {
 	__u8 status = *((__u8 *) skb->data);
@@ -2135,6 +2150,10 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
 		hci_cc_write_voice_setting(hdev, skb);
 		break;
 
+	case HCI_OP_READ_NUM_SUPPORTED_IAC:
+		hci_cc_read_num_supported_iac(hdev, skb);
+		break;
+
 	case HCI_OP_WRITE_SSP_MODE:
 		hci_cc_write_ssp_mode(hdev, skb);
 		break;
-- 
cgit 


From 4b836f393bd8ed111857a6ee1865e44627266ec6 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 14 Oct 2013 14:06:36 -0700
Subject: Bluetooth: Read current IAC LAP on controller setup

Read the current IAC LAP values when initializing the controller. The
values are not used, but it is good to have them in the trace files
for debugging purposes.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/hci.h | 2 ++
 net/bluetooth/hci_core.c    | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 8567f44aa618..b096f5f73789 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -821,6 +821,8 @@ struct hci_rp_read_num_supported_iac {
 	__u8	num_iac;
 } __packed;
 
+#define HCI_OP_READ_CURRENT_IAC_LAP	0x0c39
+
 #define HCI_OP_WRITE_INQUIRY_MODE	0x0c45
 
 #define HCI_MAX_EIR_LENGTH		240
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index b5ef05e66a2d..7add9c96e32c 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -373,6 +373,9 @@ static void bredr_setup(struct hci_request *req)
 	/* Read Number of Supported IAC */
 	hci_req_add(req, HCI_OP_READ_NUM_SUPPORTED_IAC, 0, NULL);
 
+	/* Read Current IAC LAP */
+	hci_req_add(req, HCI_OP_READ_CURRENT_IAC_LAP, 0, NULL);
+
 	/* Clear Event Filters */
 	flt_type = HCI_FLT_CLEAR_ALL;
 	hci_req_add(req, HCI_OP_SET_EVENT_FLT, 1, &flt_type);
-- 
cgit 


From 120c9794a3ee2f9b1548a1b0b252652e3c134f59 Mon Sep 17 00:00:00 2001
From: Julian Anastasov <ja@ssi.bg>
Date: Wed, 28 Aug 2013 19:31:22 +0300
Subject: ipvs: fix the IPVS_CMD_ATTR_MAX definition

It was wrong (bigger) but problem is harmless.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
---
 include/uapi/linux/ip_vs.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/uapi/linux/ip_vs.h b/include/uapi/linux/ip_vs.h
index 29458223d044..fbcffe8041f7 100644
--- a/include/uapi/linux/ip_vs.h
+++ b/include/uapi/linux/ip_vs.h
@@ -334,7 +334,7 @@ enum {
 	__IPVS_CMD_ATTR_MAX,
 };
 
-#define IPVS_CMD_ATTR_MAX (__IPVS_SVC_ATTR_MAX - 1)
+#define IPVS_CMD_ATTR_MAX (__IPVS_CMD_ATTR_MAX - 1)
 
 /*
  * Attributes used to describe a service
-- 
cgit 


From 9e4e948a3edafd2b7f4dc14c395e146ffd0d9611 Mon Sep 17 00:00:00 2001
From: Julian Anastasov <ja@ssi.bg>
Date: Wed, 9 Oct 2013 09:24:27 +0300
Subject: ipvs: avoid rcu_barrier during netns cleanup

commit 578bc3ef1e473a ("ipvs: reorganize dest trash") added
rcu_barrier() on cleanup to wait dest users and schedulers
like LBLC and LBLCR to put their last dest reference.
Using rcu_barrier with many namespaces is problematic.

Trying to fix it by freeing dest with kfree_rcu is not
a solution, RCU callbacks can run in parallel and execution
order is random.

Fix it by creating new function ip_vs_dest_put_and_free()
which is heavier than ip_vs_dest_put(). We will use it just
for schedulers like LBLC, LBLCR that can delay their dest
release.

By default, dests reference is above 0 if they are present in
service and it is 0 when deleted but still in trash list.
Change the dest trash code to use ip_vs_dest_put_and_free(),
so that refcnt -1 can be used for freeing. As result,
such checks remain in slow path and the rcu_barrier() from
netns cleanup can be removed.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
---
 include/net/ip_vs.h              | 6 ++++++
 net/netfilter/ipvs/ip_vs_ctl.c   | 6 +-----
 net/netfilter/ipvs/ip_vs_lblc.c  | 2 +-
 net/netfilter/ipvs/ip_vs_lblcr.c | 2 +-
 4 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index 1c2e1b9f6b86..cd7275f9c463 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -1442,6 +1442,12 @@ static inline void ip_vs_dest_put(struct ip_vs_dest *dest)
 	atomic_dec(&dest->refcnt);
 }
 
+static inline void ip_vs_dest_put_and_free(struct ip_vs_dest *dest)
+{
+	if (atomic_dec_return(&dest->refcnt) < 0)
+		kfree(dest);
+}
+
 /*
  *      IPVS sync daemon data and function prototypes
  *      (from ip_vs_sync.c)
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index a3df9bddc4f7..62786a495cea 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -704,7 +704,7 @@ static void ip_vs_dest_free(struct ip_vs_dest *dest)
 	__ip_vs_dst_cache_reset(dest);
 	__ip_vs_svc_put(svc, false);
 	free_percpu(dest->stats.cpustats);
-	kfree(dest);
+	ip_vs_dest_put_and_free(dest);
 }
 
 /*
@@ -3820,10 +3820,6 @@ void __net_exit ip_vs_control_net_cleanup(struct net *net)
 {
 	struct netns_ipvs *ipvs = net_ipvs(net);
 
-	/* Some dest can be in grace period even before cleanup, we have to
-	 * defer ip_vs_trash_cleanup until ip_vs_dest_wait_readers is called.
-	 */
-	rcu_barrier();
 	ip_vs_trash_cleanup(net);
 	ip_vs_stop_estimator(net, &ipvs->tot_stats);
 	ip_vs_control_net_cleanup_sysctl(net);
diff --git a/net/netfilter/ipvs/ip_vs_lblc.c b/net/netfilter/ipvs/ip_vs_lblc.c
index eff13c94498e..ca056a331e60 100644
--- a/net/netfilter/ipvs/ip_vs_lblc.c
+++ b/net/netfilter/ipvs/ip_vs_lblc.c
@@ -136,7 +136,7 @@ static void ip_vs_lblc_rcu_free(struct rcu_head *head)
 						   struct ip_vs_lblc_entry,
 						   rcu_head);
 
-	ip_vs_dest_put(en->dest);
+	ip_vs_dest_put_and_free(en->dest);
 	kfree(en);
 }
 
diff --git a/net/netfilter/ipvs/ip_vs_lblcr.c b/net/netfilter/ipvs/ip_vs_lblcr.c
index 0b8550089a2e..3f21a2f47de1 100644
--- a/net/netfilter/ipvs/ip_vs_lblcr.c
+++ b/net/netfilter/ipvs/ip_vs_lblcr.c
@@ -130,7 +130,7 @@ static void ip_vs_lblcr_elem_rcu_free(struct rcu_head *head)
 	struct ip_vs_dest_set_elem *e;
 
 	e = container_of(head, struct ip_vs_dest_set_elem, rcu_head);
-	ip_vs_dest_put(e->dest);
+	ip_vs_dest_put_and_free(e->dest);
 	kfree(e);
 }
 
-- 
cgit 


From 1255ce5f10dbb4646c8d43b8d59faab48ae4a6b2 Mon Sep 17 00:00:00 2001
From: Alexander Frolkin <avf@eldamar.org.uk>
Date: Fri, 27 Sep 2013 11:06:23 +0100
Subject: ipvs: improved SH fallback strategy

Improve the SH fallback realserver selection strategy.

With sh and sh-fallback, if a realserver is down, this attempts to
distribute the traffic that would have gone to that server evenly
among the remaining servers.

Signed-off-by: Alexander Frolkin <avf@eldamar.org.uk>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
---
 net/netfilter/ipvs/ip_vs_sh.c | 39 +++++++++++++++++++++++++++++----------
 1 file changed, 29 insertions(+), 10 deletions(-)

diff --git a/net/netfilter/ipvs/ip_vs_sh.c b/net/netfilter/ipvs/ip_vs_sh.c
index 3588faebe529..cc65b2f42cd4 100644
--- a/net/netfilter/ipvs/ip_vs_sh.c
+++ b/net/netfilter/ipvs/ip_vs_sh.c
@@ -115,27 +115,46 @@ ip_vs_sh_get(struct ip_vs_service *svc, struct ip_vs_sh_state *s,
 }
 
 
-/* As ip_vs_sh_get, but with fallback if selected server is unavailable */
+/* As ip_vs_sh_get, but with fallback if selected server is unavailable
+ *
+ * The fallback strategy loops around the table starting from a "random"
+ * point (in fact, it is chosen to be the original hash value to make the
+ * algorithm deterministic) to find a new server.
+ */
 static inline struct ip_vs_dest *
 ip_vs_sh_get_fallback(struct ip_vs_service *svc, struct ip_vs_sh_state *s,
 		      const union nf_inet_addr *addr, __be16 port)
 {
-	unsigned int offset;
-	unsigned int hash;
+	unsigned int offset, roffset;
+	unsigned int hash, ihash;
 	struct ip_vs_dest *dest;
 
+	/* first try the dest it's supposed to go to */
+	ihash = ip_vs_sh_hashkey(svc->af, addr, port, 0);
+	dest = rcu_dereference(s->buckets[ihash].dest);
+	if (!dest)
+		return NULL;
+	if (!is_unavailable(dest))
+		return dest;
+
+	IP_VS_DBG_BUF(6, "SH: selected unavailable server %s:%d, reselecting",
+		      IP_VS_DBG_ADDR(svc->af, &dest->addr), ntohs(dest->port));
+
+	/* if the original dest is unavailable, loop around the table
+	 * starting from ihash to find a new dest
+	 */
 	for (offset = 0; offset < IP_VS_SH_TAB_SIZE; offset++) {
-		hash = ip_vs_sh_hashkey(svc->af, addr, port, offset);
+		roffset = (offset + ihash) % IP_VS_SH_TAB_SIZE;
+		hash = ip_vs_sh_hashkey(svc->af, addr, port, roffset);
 		dest = rcu_dereference(s->buckets[hash].dest);
 		if (!dest)
 			break;
-		if (is_unavailable(dest))
-			IP_VS_DBG_BUF(6, "SH: selected unavailable server "
-				      "%s:%d (offset %d)",
-				      IP_VS_DBG_ADDR(svc->af, &dest->addr),
-				      ntohs(dest->port), offset);
-		else
+		if (!is_unavailable(dest))
 			return dest;
+		IP_VS_DBG_BUF(6, "SH: selected unavailable "
+			      "server %s:%d (offset %d), reselecting",
+			      IP_VS_DBG_ADDR(svc->af, &dest->addr),
+			      ntohs(dest->port), roffset);
 	}
 
 	return NULL;
-- 
cgit 


From 8d6083fe0ab6ffbe486b5d537922fba68e872568 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Mon, 14 Oct 2013 16:38:45 -0700
Subject: Bluetooth: Fix minor coding style issue in set_connectable()

There is a minor coding style violation and so just fix it. No actual
logic has changed.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 861e389f4b4c..c071708aac24 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1264,14 +1264,13 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 
 	if (test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags) &&
 	    cp->val != test_bit(HCI_PSCAN, &hdev->flags)) {
-
 		if (cp->val) {
 			scan = SCAN_PAGE;
 		} else {
 			scan = 0;
 
 			if (test_bit(HCI_ISCAN, &hdev->flags) &&
-					hdev->discov_timeout > 0)
+			    hdev->discov_timeout > 0)
 				cancel_delayed_work(&hdev->discov_off);
 		}
 
-- 
cgit 


From faed9c380860d986886e8a8b79b29bb3d1ac2a91 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Sun, 13 Oct 2013 18:17:49 +0200
Subject: pwm: don't use devm_pinctrl_get_select_default() in probe

Since commit ab78029 (drivers/pinctrl: grab default handles from device core),
we can rely on device core for setting the default pins. Compile tested only.

Acked-by: Linus Walleij <linus.walleij@linaro.org> (personally at LCE13)
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---
 drivers/pwm/pwm-tiecap.c   | 6 ------
 drivers/pwm/pwm-tiehrpwm.c | 6 ------
 2 files changed, 12 deletions(-)

diff --git a/drivers/pwm/pwm-tiecap.c b/drivers/pwm/pwm-tiecap.c
index c2e2e5852362..4e5c3d13d4f8 100644
--- a/drivers/pwm/pwm-tiecap.c
+++ b/drivers/pwm/pwm-tiecap.c
@@ -26,7 +26,6 @@
 #include <linux/pm_runtime.h>
 #include <linux/pwm.h>
 #include <linux/of_device.h>
-#include <linux/pinctrl/consumer.h>
 
 #include "pwm-tipwmss.h"
 
@@ -208,11 +207,6 @@ static int ecap_pwm_probe(struct platform_device *pdev)
 	struct clk *clk;
 	struct ecap_pwm_chip *pc;
 	u16 status;
-	struct pinctrl *pinctrl;
-
-	pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
-	if (IS_ERR(pinctrl))
-		dev_warn(&pdev->dev, "unable to select pin group\n");
 
 	pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL);
 	if (!pc) {
diff --git a/drivers/pwm/pwm-tiehrpwm.c b/drivers/pwm/pwm-tiehrpwm.c
index 084f55246532..a4d8f519d965 100644
--- a/drivers/pwm/pwm-tiehrpwm.c
+++ b/drivers/pwm/pwm-tiehrpwm.c
@@ -26,7 +26,6 @@
 #include <linux/clk.h>
 #include <linux/pm_runtime.h>
 #include <linux/of_device.h>
-#include <linux/pinctrl/consumer.h>
 
 #include "pwm-tipwmss.h"
 
@@ -439,11 +438,6 @@ static int ehrpwm_pwm_probe(struct platform_device *pdev)
 	struct clk *clk;
 	struct ehrpwm_pwm_chip *pc;
 	u16 status;
-	struct pinctrl *pinctrl;
-
-	pinctrl = devm_pinctrl_get_select_default(&pdev->dev);
-	if (IS_ERR(pinctrl))
-		dev_warn(&pdev->dev, "unable to select pin group\n");
 
 	pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL);
 	if (!pc) {
-- 
cgit 


From f2e106692d5189303997ad7b96de8d8123aa5613 Mon Sep 17 00:00:00 2001
From: chai wen <chaiw.fnst@cn.fujitsu.com>
Date: Mon, 14 Oct 2013 22:22:33 +0800
Subject: KVM: Drop FOLL_GET in GUP when doing async page fault

Page pinning is not mandatory in kvm async page fault processing since
after async page fault event is delivered to a guest it accesses page once
again and does its own GUP.  Drop the FOLL_GET flag in GUP in async_pf
code, and do some simplifying in check/clear processing.

Suggested-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Gu zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: chai wen <chaiw.fnst@cn.fujitsu.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/kvm/x86.c         |  4 ++--
 include/linux/kvm_host.h   |  2 +-
 include/trace/events/kvm.h | 10 ++++------
 virt/kvm/async_pf.c        | 17 +++++------------
 4 files changed, 12 insertions(+), 21 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index c951c71dc80b..edf2a07df3a3 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7298,7 +7298,7 @@ void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu, struct kvm_async_pf *work)
 	int r;
 
 	if ((vcpu->arch.mmu.direct_map != work->arch.direct_map) ||
-	      is_error_page(work->page))
+	      work->wakeup_all)
 		return;
 
 	r = kvm_mmu_reload(vcpu);
@@ -7408,7 +7408,7 @@ void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
 	struct x86_exception fault;
 
 	trace_kvm_async_pf_ready(work->arch.token, work->gva);
-	if (is_error_page(work->page))
+	if (work->wakeup_all)
 		work->arch.token = ~0; /* broadcast wakeup */
 	else
 		kvm_del_async_pf_gfn(vcpu, work->arch.gfn);
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index f6dccde755f6..c9d4236ab442 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -189,7 +189,7 @@ struct kvm_async_pf {
 	gva_t gva;
 	unsigned long addr;
 	struct kvm_arch_async_pf arch;
-	struct page *page;
+	bool   wakeup_all;
 };
 
 void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu);
diff --git a/include/trace/events/kvm.h b/include/trace/events/kvm.h
index 7005d1109ec9..131a0bda7aec 100644
--- a/include/trace/events/kvm.h
+++ b/include/trace/events/kvm.h
@@ -296,23 +296,21 @@ DEFINE_EVENT(kvm_async_pf_nopresent_ready, kvm_async_pf_ready,
 
 TRACE_EVENT(
 	kvm_async_pf_completed,
-	TP_PROTO(unsigned long address, struct page *page, u64 gva),
-	TP_ARGS(address, page, gva),
+	TP_PROTO(unsigned long address, u64 gva),
+	TP_ARGS(address, gva),
 
 	TP_STRUCT__entry(
 		__field(unsigned long, address)
-		__field(pfn_t, pfn)
 		__field(u64, gva)
 		),
 
 	TP_fast_assign(
 		__entry->address = address;
-		__entry->pfn = page ? page_to_pfn(page) : 0;
 		__entry->gva = gva;
 		),
 
-	TP_printk("gva %#llx address %#lx pfn %#llx",  __entry->gva,
-		  __entry->address, __entry->pfn)
+	TP_printk("gva %#llx address %#lx",  __entry->gva,
+		  __entry->address)
 );
 
 #endif
diff --git a/virt/kvm/async_pf.c b/virt/kvm/async_pf.c
index b197950ac4d5..8631d9c14320 100644
--- a/virt/kvm/async_pf.c
+++ b/virt/kvm/async_pf.c
@@ -56,7 +56,6 @@ void kvm_async_pf_vcpu_init(struct kvm_vcpu *vcpu)
 
 static void async_pf_execute(struct work_struct *work)
 {
-	struct page *page = NULL;
 	struct kvm_async_pf *apf =
 		container_of(work, struct kvm_async_pf, work);
 	struct mm_struct *mm = apf->mm;
@@ -68,13 +67,12 @@ static void async_pf_execute(struct work_struct *work)
 
 	use_mm(mm);
 	down_read(&mm->mmap_sem);
-	get_user_pages(current, mm, addr, 1, 1, 0, &page, NULL);
+	get_user_pages(current, mm, addr, 1, 1, 0, NULL, NULL);
 	up_read(&mm->mmap_sem);
 	unuse_mm(mm);
 
 	spin_lock(&vcpu->async_pf.lock);
 	list_add_tail(&apf->link, &vcpu->async_pf.done);
-	apf->page = page;
 	spin_unlock(&vcpu->async_pf.lock);
 
 	/*
@@ -82,7 +80,7 @@ static void async_pf_execute(struct work_struct *work)
 	 * this point
 	 */
 
-	trace_kvm_async_pf_completed(addr, page, gva);
+	trace_kvm_async_pf_completed(addr, gva);
 
 	if (waitqueue_active(&vcpu->wq))
 		wake_up_interruptible(&vcpu->wq);
@@ -112,8 +110,6 @@ void kvm_clear_async_pf_completion_queue(struct kvm_vcpu *vcpu)
 			list_entry(vcpu->async_pf.done.next,
 				   typeof(*work), link);
 		list_del(&work->link);
-		if (!is_error_page(work->page))
-			kvm_release_page_clean(work->page);
 		kmem_cache_free(async_pf_cache, work);
 	}
 	spin_unlock(&vcpu->async_pf.lock);
@@ -133,14 +129,11 @@ void kvm_check_async_pf_completion(struct kvm_vcpu *vcpu)
 		list_del(&work->link);
 		spin_unlock(&vcpu->async_pf.lock);
 
-		if (work->page)
-			kvm_arch_async_page_ready(vcpu, work);
+		kvm_arch_async_page_ready(vcpu, work);
 		kvm_arch_async_page_present(vcpu, work);
 
 		list_del(&work->queue);
 		vcpu->async_pf.queued--;
-		if (!is_error_page(work->page))
-			kvm_release_page_clean(work->page);
 		kmem_cache_free(async_pf_cache, work);
 	}
 }
@@ -163,7 +156,7 @@ int kvm_setup_async_pf(struct kvm_vcpu *vcpu, gva_t gva, gfn_t gfn,
 	if (!work)
 		return 0;
 
-	work->page = NULL;
+	work->wakeup_all = false;
 	work->vcpu = vcpu;
 	work->gva = gva;
 	work->addr = gfn_to_hva(vcpu->kvm, gfn);
@@ -203,7 +196,7 @@ int kvm_async_pf_wakeup_all(struct kvm_vcpu *vcpu)
 	if (!work)
 		return -ENOMEM;
 
-	work->page = KVM_ERR_PTR_BAD_PAGE;
+	work->wakeup_all = true;
 	INIT_LIST_HEAD(&work->queue); /* for list_del to work */
 
 	spin_lock(&vcpu->async_pf.lock);
-- 
cgit 


From 6650b181cc0b0c4218ebff9b0c368a2e56287907 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Mon, 14 Oct 2013 18:25:12 -0300
Subject: perf scripting perl: Fix build error on Fedora 12
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Cast __u64 to u64 to silence this warning on older distros, such as
Fedora 12:

    CC       /tmp/build/perf/util/scripting-engines/trace-event-perl.o
  cc1: warnings being treated as errors
  util/scripting-engines/trace-event-perl.c: In function ‘perl_process_tracepoint’:
  util/scripting-engines/trace-event-perl.c:285: error: format ‘%lu’ expects type ‘long unsigned int’, but argument 2 has type ‘__u64’
  make[1]: *** [/tmp/build/perf/util/scripting-engines/trace-event-perl.o] Error 1
  make: *** [install] Error 2
  make: Leaving directory `/home/acme/git/linux/tools/perf'
  [acme@fedora12 linux]$

Reported-by: Waiman Long <Waiman.Long@hp.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tom.zanussi@linux.intel.com>
Cc: Waiman Long <Waiman.Long@hp.com>
Link: http://lkml.kernel.org/n/tip-nlxofdqcdjfm0w9o6bgq4kqv@git.kernel.org
Link: http://lkml.kernel.org/r/1381265120-58532-1-git-send-email-Waiman.Long@hp.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/scripting-engines/trace-event-perl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c
index a85e4ae5f3ac..c0c9795c4f02 100644
--- a/tools/perf/util/scripting-engines/trace-event-perl.c
+++ b/tools/perf/util/scripting-engines/trace-event-perl.c
@@ -282,7 +282,7 @@ static void perl_process_tracepoint(union perf_event *perf_event __maybe_unused,
 
 	event = find_cache_event(evsel);
 	if (!event)
-		die("ug! no event found for type %" PRIu64, evsel->attr.config);
+		die("ug! no event found for type %" PRIu64, (u64)evsel->attr.config);
 
 	pid = raw_field_value(event, "common_pid", data);
 
-- 
cgit 


From 81a1d5ea6670acecf1366cd6a4d328c123bdf9fa Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Tue, 15 Oct 2013 08:33:12 +0200
Subject: usb: gadget: storage_common: use strtobool instead of kstrtouint

strtobool is more flexible for the user and is more appropriate in the
context.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/storage_common.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/gadget/storage_common.c b/drivers/usb/gadget/storage_common.c
index c7b78a1f6086..8bd5f2d838db 100644
--- a/drivers/usb/gadget/storage_common.c
+++ b/drivers/usb/gadget/storage_common.c
@@ -375,9 +375,9 @@ ssize_t fsg_store_ro(struct fsg_lun *curlun, struct rw_semaphore *filesem,
 		     const char *buf, size_t count)
 {
 	ssize_t		rc;
-	unsigned	ro;
+	bool		ro;
 
-	rc = kstrtouint(buf, 2, &ro);
+	rc = strtobool(buf, &ro);
 	if (rc)
 		return rc;
 
@@ -402,10 +402,10 @@ EXPORT_SYMBOL(fsg_store_ro);
 
 ssize_t fsg_store_nofua(struct fsg_lun *curlun, const char *buf, size_t count)
 {
-	unsigned	nofua;
+	bool		nofua;
 	int		ret;
 
-	ret = kstrtouint(buf, 2, &nofua);
+	ret = strtobool(buf, &nofua);
 	if (ret)
 		return ret;
 
@@ -452,10 +452,10 @@ EXPORT_SYMBOL(fsg_store_file);
 
 ssize_t fsg_store_cdrom(struct fsg_lun *curlun, const char *buf, size_t count)
 {
-	unsigned	cdrom;
+	bool		cdrom;
 	int		ret;
 
-	ret = kstrtouint(buf, 2, &cdrom);
+	ret = strtobool(buf, &cdrom);
 	if (ret)
 		return ret;
 
@@ -468,10 +468,10 @@ EXPORT_SYMBOL(fsg_store_cdrom);
 ssize_t fsg_store_removable(struct fsg_lun *curlun, const char *buf,
 			    size_t count)
 {
-	unsigned	removable;
+	bool		removable;
 	int		ret;
 
-	ret = kstrtouint(buf, 2, &removable);
+	ret = strtobool(buf, &removable);
 	if (ret)
 		return ret;
 
-- 
cgit 


From b8798636798ee04feb0f1bb87eec0027e3f68d98 Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Tue, 15 Oct 2013 08:33:13 +0200
Subject: usb: gadget: storage_common: pass filesem to fsg_store_cdrom

If cdrom flag is set ro flag is implied. Try setting the ro first, and
only if it succeeds set the cdrom flag.

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/f_mass_storage.c |  7 ++++++-
 drivers/usb/gadget/storage_common.c | 42 +++++++++++++++++++++++++++----------
 drivers/usb/gadget/storage_common.h |  3 ++-
 3 files changed, 39 insertions(+), 13 deletions(-)

diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 6e5a6daf1a12..6b5f45144cdf 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -3281,7 +3281,12 @@ static ssize_t fsg_lun_opts_cdrom_show(struct fsg_lun_opts *opts, char *page)
 static ssize_t fsg_lun_opts_cdrom_store(struct fsg_lun_opts *opts,
 				       const char *page, size_t len)
 {
-	return fsg_store_cdrom(opts->lun, page, len);
+	struct fsg_opts *fsg_opts;
+
+	fsg_opts = to_fsg_opts(opts->group.cg_item.ci_parent);
+
+	return fsg_store_cdrom(opts->lun, &fsg_opts->common->filesem, page,
+			       len);
 }
 
 static struct fsg_lun_opts_attribute fsg_lun_opts_cdrom =
diff --git a/drivers/usb/gadget/storage_common.c b/drivers/usb/gadget/storage_common.c
index 8bd5f2d838db..ec20a1f50c2d 100644
--- a/drivers/usb/gadget/storage_common.c
+++ b/drivers/usb/gadget/storage_common.c
@@ -371,6 +371,23 @@ ssize_t fsg_show_removable(struct fsg_lun *curlun, char *buf)
 }
 EXPORT_SYMBOL(fsg_show_removable);
 
+/*
+ * The caller must hold fsg->filesem for reading when calling this function.
+ */
+static ssize_t _fsg_store_ro(struct fsg_lun *curlun, bool ro)
+{
+	if (fsg_lun_is_open(curlun)) {
+		LDBG(curlun, "read-only status change prevented\n");
+		return -EBUSY;
+	}
+
+	curlun->ro = ro;
+	curlun->initially_ro = ro;
+	LDBG(curlun, "read-only status set to %d\n", curlun->ro);
+
+	return 0;
+}
+
 ssize_t fsg_store_ro(struct fsg_lun *curlun, struct rw_semaphore *filesem,
 		     const char *buf, size_t count)
 {
@@ -386,16 +403,11 @@ ssize_t fsg_store_ro(struct fsg_lun *curlun, struct rw_semaphore *filesem,
 	 * backing file is closed.
 	 */
 	down_read(filesem);
-	if (fsg_lun_is_open(curlun)) {
-		LDBG(curlun, "read-only status change prevented\n");
-		rc = -EBUSY;
-	} else {
-		curlun->ro = ro;
-		curlun->initially_ro = ro;
-		LDBG(curlun, "read-only status set to %d\n", curlun->ro);
+	rc = _fsg_store_ro(curlun, ro);
+	if (!rc)
 		rc = count;
-	}
 	up_read(filesem);
+
 	return rc;
 }
 EXPORT_SYMBOL(fsg_store_ro);
@@ -450,7 +462,8 @@ ssize_t fsg_store_file(struct fsg_lun *curlun, struct rw_semaphore *filesem,
 }
 EXPORT_SYMBOL(fsg_store_file);
 
-ssize_t fsg_store_cdrom(struct fsg_lun *curlun, const char *buf, size_t count)
+ssize_t fsg_store_cdrom(struct fsg_lun *curlun, struct rw_semaphore *filesem,
+			const char *buf, size_t count)
 {
 	bool		cdrom;
 	int		ret;
@@ -459,9 +472,16 @@ ssize_t fsg_store_cdrom(struct fsg_lun *curlun, const char *buf, size_t count)
 	if (ret)
 		return ret;
 
-	curlun->cdrom = cdrom;
+	down_read(filesem);
+	ret = cdrom ? _fsg_store_ro(curlun, true) : 0;
 
-	return count;
+	if (!ret) {
+		curlun->cdrom = cdrom;
+		ret = count;
+	}
+	up_read(filesem);
+
+	return ret;
 }
 EXPORT_SYMBOL(fsg_store_cdrom);
 
diff --git a/drivers/usb/gadget/storage_common.h b/drivers/usb/gadget/storage_common.h
index e0f7aa69c7ed..c74c2fdbd56e 100644
--- a/drivers/usb/gadget/storage_common.h
+++ b/drivers/usb/gadget/storage_common.h
@@ -221,7 +221,8 @@ ssize_t fsg_store_ro(struct fsg_lun *curlun, struct rw_semaphore *filesem,
 ssize_t fsg_store_nofua(struct fsg_lun *curlun, const char *buf, size_t count);
 ssize_t fsg_store_file(struct fsg_lun *curlun, struct rw_semaphore *filesem,
 		       const char *buf, size_t count);
-ssize_t fsg_store_cdrom(struct fsg_lun *curlun, const char *buf, size_t count);
+ssize_t fsg_store_cdrom(struct fsg_lun *curlun, struct rw_semaphore *filesem,
+			const char *buf, size_t count);
 ssize_t fsg_store_removable(struct fsg_lun *curlun, const char *buf,
 			    size_t count);
 
-- 
cgit 


From ac8ed236a9765c8b0689ff97eaca071211d9e22b Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 14 Oct 2013 10:34:24 +0900
Subject: spi: butterfly: Fix checkpatch issue

Fix the following checkpatch errors and warnings.

  ERROR: space required before the open brace '{'
  ERROR: space required after that close brace '}'
  ERROR: space required before the open parenthesis '('
  ERROR: do not use C99 // comments
  WARNING: sizeof *pp should be sizeof(*pp)

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-butterfly.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/spi/spi-butterfly.c b/drivers/spi/spi-butterfly.c
index 5ed08e537433..75b1860cb25e 100644
--- a/drivers/spi/spi-butterfly.c
+++ b/drivers/spi/spi-butterfly.c
@@ -147,8 +147,8 @@ static void butterfly_chipselect(struct spi_device *spi, int value)
 
 /* we only needed to implement one mode here, and choose SPI_MODE_0 */
 
-#define	spidelay(X)	do{}while(0)
-//#define	spidelay	ndelay
+#define spidelay(X)	do { } while (0)
+/* #define spidelay	ndelay */
 
 #include "spi-bitbang-txrx.h"
 
@@ -171,15 +171,15 @@ static struct mtd_partition partitions[] = { {
 	/* sector 0 = 8 pages * 264 bytes/page (1 block)
 	 * sector 1 = 248 pages * 264 bytes/page
 	 */
-	.name		= "bookkeeping",	// 66 KB
+	.name		= "bookkeeping",	/* 66 KB */
 	.offset		= 0,
 	.size		= (8 + 248) * 264,
-//	.mask_flags	= MTD_WRITEABLE,
+	/* .mask_flags	= MTD_WRITEABLE, */
 }, {
 	/* sector 2 = 256 pages * 264 bytes/page
 	 * sectors 3-5 = 512 pages * 264 bytes/page
 	 */
-	.name		= "filesystem",		// 462 KB
+	.name		= "filesystem",		/* 462 KB */
 	.offset		= MTDPART_OFS_APPEND,
 	.size		= MTDPART_SIZ_FULL,
 } };
@@ -209,7 +209,7 @@ static void butterfly_attach(struct parport *p)
 	 * and no way to be selective about what it binds to.
 	 */
 
-	master = spi_alloc_master(dev, sizeof *pp);
+	master = spi_alloc_master(dev, sizeof(*pp));
 	if (!master) {
 		status = -ENOMEM;
 		goto done;
@@ -289,7 +289,6 @@ static void butterfly_attach(struct parport *p)
 		pr_debug("%s: dataflash at %s\n", p->name,
 				dev_name(&pp->dataflash->dev));
 
-	// dev_info(_what?_, ...)
 	pr_info("%s: AVR Butterfly\n", p->name);
 	butterfly = pp;
 	return;
-- 
cgit 


From 3fed8068fbad01b044c40c4df24bb97e853813ff Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 14 Oct 2013 10:35:08 +0900
Subject: spi: orion: Fix checkpatch issue

Fix the following checkpatch warnings.

  WARNING: quoted string split across lines
  WARNING: sizeof *spi should be sizeof(*spi)

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-orion.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/spi-orion.c b/drivers/spi/spi-orion.c
index 1d1d321d90c4..c6caed3c4625 100644
--- a/drivers/spi/spi-orion.c
+++ b/drivers/spi/spi-orion.c
@@ -84,8 +84,8 @@ static int orion_spi_set_transfer_size(struct orion_spi *orion_spi, int size)
 		orion_spi_clrbits(orion_spi, ORION_SPI_IF_CONFIG_REG,
 				  ORION_SPI_IF_8_16_BIT_MODE);
 	} else {
-		pr_debug("Bad bits per word value %d (only 8 or 16 are "
-			 "allowed).\n", size);
+		pr_debug("Bad bits per word value %d (only 8 or 16 are allowed).\n",
+			size);
 		return -EINVAL;
 	}
 
@@ -407,7 +407,7 @@ static int orion_spi_probe(struct platform_device *pdev)
 	const u32 *iprop;
 	int size;
 
-	master = spi_alloc_master(&pdev->dev, sizeof *spi);
+	master = spi_alloc_master(&pdev->dev, sizeof(*spi));
 	if (master == NULL) {
 		dev_dbg(&pdev->dev, "master allocation failed\n");
 		return -ENOMEM;
-- 
cgit 


From a29c8ae7187aee902d37d7677255de726614e43e Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 14 Oct 2013 10:35:42 +0900
Subject: spi: sh-hspi: Fix checkpatch issue

Fix the following checkpatch warning.

  WARNING: space prohibited before semicolon

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-sh-hspi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-sh-hspi.c b/drivers/spi/spi-sh-hspi.c
index e488a90a98b8..b9e7b5e61528 100644
--- a/drivers/spi/spi-sh-hspi.c
+++ b/drivers/spi/spi-sh-hspi.c
@@ -137,7 +137,7 @@ static void hspi_hw_setup(struct hspi_priv *hspi,
 			rate /= 16;
 
 		/* CLKCx calculation */
-		rate /= (((idiv_clk & 0x1F) + 1) * 2) ;
+		rate /= (((idiv_clk & 0x1F) + 1) * 2);
 
 		/* save best settings */
 		tmp = abs(target_rate - rate);
-- 
cgit 


From 3cb7b407ce84e5756076f64bf4341cc101955966 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 14 Oct 2013 10:36:10 +0900
Subject: spi: tegra20-slink: Fix checkpatch issue

Fix the following checkpatch warning.

  WARNING: space prohibited before semicolon

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-tegra20-slink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c
index 36d4e663db9b..d1d2bff01301 100644
--- a/drivers/spi/spi-tegra20-slink.c
+++ b/drivers/spi/spi-tegra20-slink.c
@@ -278,7 +278,7 @@ static unsigned tegra_slink_calculate_curr_xfer_param(
 {
 	unsigned remain_len = t->len - tspi->cur_pos;
 	unsigned max_word;
-	unsigned bits_per_word ;
+	unsigned bits_per_word;
 	unsigned max_len;
 	unsigned total_fifo_words;
 
-- 
cgit 


From 256fbf36d159f286011667ad84c378452d5fc1bf Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 14 Oct 2013 10:36:31 +0900
Subject: spi: txx9: Fix checkpatch issue

Fix the following checkpatch warnings.

  WARNING: space prohibited between function name and open parenthesis '('

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-txx9.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/spi/spi-txx9.c b/drivers/spi/spi-txx9.c
index 7c6d15766c72..017139bdec99 100644
--- a/drivers/spi/spi-txx9.c
+++ b/drivers/spi/spi-txx9.c
@@ -177,7 +177,7 @@ static void txx9spi_work_one(struct txx9spi *c, struct spi_message *m)
 			| 0x08,
 			TXx9_SPCR0);
 
-	list_for_each_entry (t, &m->transfers, transfer_list) {
+	list_for_each_entry(t, &m->transfers, transfer_list) {
 		const void *txbuf = t->tx_buf;
 		void *rxbuf = t->rx_buf;
 		u32 data;
@@ -308,7 +308,7 @@ static int txx9spi_transfer(struct spi_device *spi, struct spi_message *m)
 	m->actual_length = 0;
 
 	/* check each transfer's parameters */
-	list_for_each_entry (t, &m->transfers, transfer_list) {
+	list_for_each_entry(t, &m->transfers, transfer_list) {
 		u32 speed_hz = t->speed_hz ? : spi->max_speed_hz;
 		u8 bits_per_word = t->bits_per_word;
 
-- 
cgit 


From 95c63cfba777bf2154565abbdc61ea970aaa632c Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 14 Oct 2013 10:36:54 +0900
Subject: spi: spidev: Fix checkpatch issue

Fix the following checkpatch warnings.

  WARNING: Use #include <linux/uaccess.h> instead of <asm/uaccess.h>
  WARNING: braces {} are not necessary for any arm of this statement

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spidev.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c
index c53556a1899a..d7c6e36021e8 100644
--- a/drivers/spi/spidev.c
+++ b/drivers/spi/spidev.c
@@ -37,7 +37,7 @@
 #include <linux/spi/spi.h>
 #include <linux/spi/spidev.h>
 
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 
 /*
@@ -206,9 +206,9 @@ spidev_write(struct file *filp, const char __user *buf,
 
 	mutex_lock(&spidev->buf_lock);
 	missing = copy_from_user(spidev->buffer, buf, count);
-	if (missing == 0) {
+	if (missing == 0)
 		status = spidev_sync_write(spidev, count);
-	} else
+	else
 		status = -EFAULT;
 	mutex_unlock(&spidev->buf_lock);
 
-- 
cgit 


From 34f7568510564726d33fe8248736ece7d76d0054 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 14 Oct 2013 17:45:51 +0900
Subject: regulator: anatop: Fix checkpatch issue

Fix the following checkpatch warning.

  WARNING: quoted string split across lines

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/anatop-regulator.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/anatop-regulator.c b/drivers/regulator/anatop-regulator.c
index 0d4a8ccbb536..75a9c7875a7a 100644
--- a/drivers/regulator/anatop-regulator.c
+++ b/drivers/regulator/anatop-regulator.c
@@ -256,7 +256,7 @@ static void __exit anatop_regulator_exit(void)
 }
 module_exit(anatop_regulator_exit);
 
-MODULE_AUTHOR("Nancy Chen <Nancy.Chen@freescale.com>, "
-	      "Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org>");
+MODULE_AUTHOR("Nancy Chen <Nancy.Chen@freescale.com>");
+MODULE_AUTHOR("Ying-Chun Liu (PaulLiu) <paul.liu@linaro.org>");
 MODULE_DESCRIPTION("ANATOP Regulator driver");
 MODULE_LICENSE("GPL v2");
-- 
cgit 


From 609d5f6ddc18d05801646c869fcf4d0537b9110b Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 14 Oct 2013 17:46:36 +0900
Subject: regulator: fixed: Fix checkpatch issue

Fix the following checkpatch warnings.

  WARNING: braces {} are not necessary for any arm of this statement

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/fixed.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c
index de811f3b921b..5ea64b94341c 100644
--- a/drivers/regulator/fixed.c
+++ b/drivers/regulator/fixed.c
@@ -168,17 +168,15 @@ static int reg_fixed_voltage_probe(struct platform_device *pdev)
 		cfg.ena_gpio = config->gpio;
 	cfg.ena_gpio_invert = !config->enable_high;
 	if (config->enabled_at_boot) {
-		if (config->enable_high) {
+		if (config->enable_high)
 			cfg.ena_gpio_flags |= GPIOF_OUT_INIT_HIGH;
-		} else {
+		else
 			cfg.ena_gpio_flags |= GPIOF_OUT_INIT_LOW;
-		}
 	} else {
-		if (config->enable_high) {
+		if (config->enable_high)
 			cfg.ena_gpio_flags |= GPIOF_OUT_INIT_LOW;
-		} else {
+		else
 			cfg.ena_gpio_flags |= GPIOF_OUT_INIT_HIGH;
-		}
 	}
 	if (config->gpio_is_open_drain)
 		cfg.ena_gpio_flags |= GPIOF_OPEN_DRAIN;
-- 
cgit 


From 0a3ee93a3226a951dc32197f6fcfb1b535fbabf4 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 14 Oct 2013 17:47:31 +0900
Subject: regulator: lp3971: Fix checkpatch issue

Fix the following checkpatch warnings.

  WARNING: please, no spaces at the start of a line

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/lp3971.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/lp3971.c b/drivers/regulator/lp3971.c
index 5a4604ee5ea5..947c05ffe0ab 100644
--- a/drivers/regulator/lp3971.c
+++ b/drivers/regulator/lp3971.c
@@ -474,8 +474,8 @@ static int lp3971_i2c_remove(struct i2c_client *i2c)
 }
 
 static const struct i2c_device_id lp3971_i2c_id[] = {
-       { "lp3971", 0 },
-       { }
+	{ "lp3971", 0 },
+	{ }
 };
 MODULE_DEVICE_TABLE(i2c, lp3971_i2c_id);
 
-- 
cgit 


From c4e3b1442a77e7fd7459168894f6416f00542f74 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 14 Oct 2013 17:49:11 +0900
Subject: regulator: max8997: Fix checkpatch issue

Fix the following checkpatch warning.

  WARNING: quoted string split across lines

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/max8997.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/max8997.c b/drivers/regulator/max8997.c
index df20069f0537..e789b4b96469 100644
--- a/drivers/regulator/max8997.c
+++ b/drivers/regulator/max8997.c
@@ -690,8 +690,9 @@ static int max8997_set_voltage_buck(struct regulator_dev *rdev,
 	if (max8997->ignore_gpiodvs_side_effect == false)
 		return -EINVAL;
 
-	dev_warn(&rdev->dev, "MAX8997 GPIO-DVS Side Effect Warning: GPIO SET:"
-			" %d -> %d\n", max8997->buck125_gpioindex, tmp_idx);
+	dev_warn(&rdev->dev,
+		"MAX8997 GPIO-DVS Side Effect Warning: GPIO SET:  %d -> %d\n",
+		max8997->buck125_gpioindex, tmp_idx);
 
 out:
 	if (new_idx < 0 || new_val < 0)
-- 
cgit 


From 6e044c3fa87e310f24ec8062d7d6954180761fea Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 14 Oct 2013 17:49:55 +0900
Subject: regulator: mc13783: Fix checkpatch issue

Fix the following checkpatch warnings.

  WARNING: Avoid unnecessary line continuations

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/mc13783-regulator.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/regulator/mc13783-regulator.c b/drivers/regulator/mc13783-regulator.c
index 5ff99d2703db..4921bcbf711b 100644
--- a/drivers/regulator/mc13783-regulator.c
+++ b/drivers/regulator/mc13783-regulator.c
@@ -258,34 +258,34 @@ static struct mc13xxx_regulator mc13783_regulators[] = {
 
 	MC13783_FIXED_DEFINE(REG, VAUDIO, REGULATORMODE0, mc13783_vaudio_val),
 	MC13783_FIXED_DEFINE(REG, VIOHI, REGULATORMODE0, mc13783_viohi_val),
-	MC13783_DEFINE_REGU(VIOLO, REGULATORMODE0, REGULATORSETTING0,	\
+	MC13783_DEFINE_REGU(VIOLO, REGULATORMODE0, REGULATORSETTING0,
 			    mc13783_violo_val),
-	MC13783_DEFINE_REGU(VDIG, REGULATORMODE0, REGULATORSETTING0,	\
+	MC13783_DEFINE_REGU(VDIG, REGULATORMODE0, REGULATORSETTING0,
 			    mc13783_vdig_val),
-	MC13783_DEFINE_REGU(VGEN, REGULATORMODE0, REGULATORSETTING0,	\
+	MC13783_DEFINE_REGU(VGEN, REGULATORMODE0, REGULATORSETTING0,
 			    mc13783_vgen_val),
-	MC13783_DEFINE_REGU(VRFDIG, REGULATORMODE0, REGULATORSETTING0,	\
+	MC13783_DEFINE_REGU(VRFDIG, REGULATORMODE0, REGULATORSETTING0,
 			    mc13783_vrfdig_val),
-	MC13783_DEFINE_REGU(VRFREF, REGULATORMODE0, REGULATORSETTING0,	\
+	MC13783_DEFINE_REGU(VRFREF, REGULATORMODE0, REGULATORSETTING0,
 			    mc13783_vrfref_val),
-	MC13783_DEFINE_REGU(VRFCP, REGULATORMODE0, REGULATORSETTING0,	\
+	MC13783_DEFINE_REGU(VRFCP, REGULATORMODE0, REGULATORSETTING0,
 			    mc13783_vrfcp_val),
-	MC13783_DEFINE_REGU(VSIM, REGULATORMODE1, REGULATORSETTING0,	\
+	MC13783_DEFINE_REGU(VSIM, REGULATORMODE1, REGULATORSETTING0,
 			    mc13783_vsim_val),
-	MC13783_DEFINE_REGU(VESIM, REGULATORMODE1, REGULATORSETTING0,	\
+	MC13783_DEFINE_REGU(VESIM, REGULATORMODE1, REGULATORSETTING0,
 			    mc13783_vesim_val),
-	MC13783_DEFINE_REGU(VCAM, REGULATORMODE1, REGULATORSETTING0,	\
+	MC13783_DEFINE_REGU(VCAM, REGULATORMODE1, REGULATORSETTING0,
 			    mc13783_vcam_val),
 	MC13783_FIXED_DEFINE(REG, VRFBG, REGULATORMODE1, mc13783_vrfbg_val),
-	MC13783_DEFINE_REGU(VVIB, REGULATORMODE1, REGULATORSETTING1,	\
+	MC13783_DEFINE_REGU(VVIB, REGULATORMODE1, REGULATORSETTING1,
 			    mc13783_vvib_val),
-	MC13783_DEFINE_REGU(VRF1, REGULATORMODE1, REGULATORSETTING1,	\
+	MC13783_DEFINE_REGU(VRF1, REGULATORMODE1, REGULATORSETTING1,
 			    mc13783_vrf_val),
-	MC13783_DEFINE_REGU(VRF2, REGULATORMODE1, REGULATORSETTING1,	\
+	MC13783_DEFINE_REGU(VRF2, REGULATORMODE1, REGULATORSETTING1,
 			    mc13783_vrf_val),
-	MC13783_DEFINE_REGU(VMMC1, REGULATORMODE1, REGULATORSETTING1,	\
+	MC13783_DEFINE_REGU(VMMC1, REGULATORMODE1, REGULATORSETTING1,
 			    mc13783_vmmc_val),
-	MC13783_DEFINE_REGU(VMMC2, REGULATORMODE1, REGULATORSETTING1,	\
+	MC13783_DEFINE_REGU(VMMC2, REGULATORMODE1, REGULATORSETTING1,
 			    mc13783_vmmc_val),
 	MC13783_GPO_DEFINE(REG, GPO1, POWERMISC, mc13783_gpo_val),
 	MC13783_GPO_DEFINE(REG, GPO2, POWERMISC, mc13783_gpo_val),
-- 
cgit 


From 4932e89d75f7b946d2f03a0157b8b9f6a0e12e10 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 14 Oct 2013 17:51:51 +0900
Subject: regulator: tps6105x: Fix checkpatch issue

Fix the following checkpatch warning.

  WARNING: unnecessary whitespace before a quoted newline

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/tps6105x-regulator.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/tps6105x-regulator.c b/drivers/regulator/tps6105x-regulator.c
index ec9453ffb77f..3346e78fb960 100644
--- a/drivers/regulator/tps6105x-regulator.c
+++ b/drivers/regulator/tps6105x-regulator.c
@@ -137,7 +137,7 @@ static int tps6105x_regulator_probe(struct platform_device *pdev)
 	/* This instance is not set for regulator mode so bail out */
 	if (pdata->mode != TPS6105X_MODE_VOLTAGE) {
 		dev_info(&pdev->dev,
-			 "chip not in voltage mode mode, exit probe \n");
+			"chip not in voltage mode mode, exit probe\n");
 		return 0;
 	}
 
-- 
cgit 


From 5ee034e614a9e115763fa8d50ae18bf6a13b21d1 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 14 Oct 2013 17:52:45 +0900
Subject: regulator: tps65023: Fix checkpatch issue

Fix the following checkpatch warning.

  WARNING: line over 80 characters

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/tps65023-regulator.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c
index a15263d4bdff..f6e398240686 100644
--- a/drivers/regulator/tps65023-regulator.c
+++ b/drivers/regulator/tps65023-regulator.c
@@ -293,7 +293,8 @@ static int tps_65023_probe(struct i2c_client *client,
 
 	/* Enable setting output voltage by I2C */
 	regmap_update_bits(tps->regmap, TPS65023_REG_CON_CTRL2,
-			TPS65023_REG_CTRL2_CORE_ADJ, TPS65023_REG_CTRL2_CORE_ADJ);
+					TPS65023_REG_CTRL2_CORE_ADJ,
+					TPS65023_REG_CTRL2_CORE_ADJ);
 
 	return 0;
 
-- 
cgit 


From 4b57927045c30d8f8579a43177459782f45f5468 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 14 Oct 2013 17:53:40 +0900
Subject: regulator: tps65910: Fix checkpatch issue

Fix the following checkpatch errors and warning.

  ERROR: spaces required around that '=' (ctx:VxV)
  ERROR: space required before the open parenthesis '('
  WARNING: line over 80 characters

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/tps65910-regulator.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c
index 95ebc67a3da4..10615d2a32e1 100644
--- a/drivers/regulator/tps65910-regulator.c
+++ b/drivers/regulator/tps65910-regulator.c
@@ -481,7 +481,7 @@ static int tps65910_get_voltage_dcdc_sel(struct regulator_dev *dev)
 
 	/* multiplier 0 == 1 but 2,3 normal */
 	if (!mult)
-		mult=1;
+		mult = 1;
 
 	if (sr) {
 		/* normalise to valid range */
@@ -685,7 +685,7 @@ static int tps65910_list_voltage_dcdc(struct regulator_dev *dev,
 	case TPS65910_REG_VDD2:
 		mult = (selector / VDD1_2_NUM_VOLT_FINE) + 1;
 		volt = VDD1_2_MIN_VOLT +
-				(selector % VDD1_2_NUM_VOLT_FINE) * VDD1_2_OFFSET;
+			(selector % VDD1_2_NUM_VOLT_FINE) * VDD1_2_OFFSET;
 		break;
 	case TPS65911_REG_VDDCTRL:
 		volt = VDDCTRL_MIN_VOLT + (selector * VDDCTRL_OFFSET);
@@ -703,7 +703,7 @@ static int tps65911_list_voltage(struct regulator_dev *dev, unsigned selector)
 	struct tps65910_reg *pmic = rdev_get_drvdata(dev);
 	int step_mv = 0, id = rdev_get_id(dev);
 
-	switch(id) {
+	switch (id) {
 	case TPS65911_REG_LDO1:
 	case TPS65911_REG_LDO2:
 	case TPS65911_REG_LDO4:
@@ -1074,7 +1074,7 @@ static int tps65910_probe(struct platform_device *pdev)
 	tps65910_reg_set_bits(pmic->mfd, TPS65910_DEVCTRL,
 				DEVCTRL_SR_CTL_I2C_SEL_MASK);
 
-	switch(tps65910_chip_id(tps65910)) {
+	switch (tps65910_chip_id(tps65910)) {
 	case TPS65910:
 		pmic->get_ctrl_reg = &tps65910_get_ctrl_register;
 		pmic->num_regulators = ARRAY_SIZE(tps65910_regs);
-- 
cgit 


From 8b789d89813fae01908ecc825c9dfc0ec90647ad Mon Sep 17 00:00:00 2001
From: Richard Zhu <r65037@freescale.com>
Date: Tue, 15 Oct 2013 10:44:54 +0800
Subject: ahci: imx: setup power saving methods

In order to save power consumption as much as possible.

* Disable sata phy internal pll reference clock when sysetem enter
  into suspend mode, enable it after resume.

* Setup module parameter used to enable imx ahci test power down
  mode(PDDQ) or not, when there is no device detected on the port

* minor modifications:
  - The format of the copyright is changed, because that the original
    one can't pass fsl internal patch reivew without the character
    '(c)'.
  - Exports ahci_platform_ops and ahci_error_handler().

NOTE:
* The hot-plug can't be supported when PDDQ mode is ever enabled.

* module parameter usage how-to:
  - default: enable PDDQ mode when no device detected.
  - add "ahci-imx.hotplug=1" into kernel command line if your don't
    want to enable PDDQ mode when no device detected on the port.

tj: Slightly updated description and comments.

Signed-off-by: Richard Zhu <r65037@freescale.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 drivers/ata/ahci.h          |   2 +
 drivers/ata/ahci_imx.c      | 101 +++++++++++++++++++++++++++++++++++++++++++-
 drivers/ata/ahci_platform.c |   3 +-
 drivers/ata/libahci.c       |   4 +-
 4 files changed, 105 insertions(+), 5 deletions(-)

diff --git a/drivers/ata/ahci.h b/drivers/ata/ahci.h
index 11456371f29b..2289efdf8203 100644
--- a/drivers/ata/ahci.h
+++ b/drivers/ata/ahci.h
@@ -339,6 +339,7 @@ extern struct device_attribute *ahci_sdev_attrs[];
 	.sdev_attrs		= ahci_sdev_attrs
 
 extern struct ata_port_operations ahci_ops;
+extern struct ata_port_operations ahci_platform_ops;
 extern struct ata_port_operations ahci_pmp_retry_srst_ops;
 
 unsigned int ahci_dev_classify(struct ata_port *ap);
@@ -368,6 +369,7 @@ irqreturn_t ahci_hw_interrupt(int irq, void *dev_instance);
 irqreturn_t ahci_thread_fn(int irq, void *dev_instance);
 void ahci_print_info(struct ata_host *host, const char *scc_s);
 int ahci_host_activate(struct ata_host *host, int irq, unsigned int n_msis);
+void ahci_error_handler(struct ata_port *ap);
 
 static inline void __iomem *__ahci_port_base(struct ata_host *host,
 					     unsigned int port_no)
diff --git a/drivers/ata/ahci_imx.c b/drivers/ata/ahci_imx.c
index 58debb0acc3a..ae2d73fe321e 100644
--- a/drivers/ata/ahci_imx.c
+++ b/drivers/ata/ahci_imx.c
@@ -1,6 +1,6 @@
 /*
+ * copyright (c) 2013 Freescale Semiconductor, Inc.
  * Freescale IMX AHCI SATA platform driver
- * Copyright 2013 Freescale Semiconductor, Inc.
  *
  * based on the AHCI SATA platform driver by Jeff Garzik and Anton Vorontsov
  *
@@ -25,10 +25,13 @@
 #include <linux/of_device.h>
 #include <linux/mfd/syscon.h>
 #include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
+#include <linux/libata.h>
 #include "ahci.h"
 
 enum {
-	HOST_TIMER1MS = 0xe0, /* Timer 1-ms */
+	PORT_PHY_CTL = 0x178,			/* Port0 PHY Control */
+	PORT_PHY_CTL_PDDQ_LOC = 0x100000,	/* PORT_PHY_CTL bits */
+	HOST_TIMER1MS = 0xe0,			/* Timer 1-ms */
 };
 
 struct imx_ahci_priv {
@@ -36,6 +39,56 @@ struct imx_ahci_priv {
 	struct clk *sata_ref_clk;
 	struct clk *ahb_clk;
 	struct regmap *gpr;
+	bool no_device;
+	bool first_time;
+};
+
+static int ahci_imx_hotplug;
+module_param_named(hotplug, ahci_imx_hotplug, int, 0644);
+MODULE_PARM_DESC(hotplug, "AHCI IMX hot-plug support (0=Don't support, 1=support)");
+
+static void ahci_imx_error_handler(struct ata_port *ap)
+{
+	u32 reg_val;
+	struct ata_device *dev;
+	struct ata_host *host = dev_get_drvdata(ap->dev);
+	struct ahci_host_priv *hpriv = host->private_data;
+	void __iomem *mmio = hpriv->mmio;
+	struct imx_ahci_priv *imxpriv = dev_get_drvdata(ap->dev->parent);
+
+	ahci_error_handler(ap);
+
+	if (!(imxpriv->first_time) || ahci_imx_hotplug)
+		return;
+
+	imxpriv->first_time = false;
+
+	ata_for_each_dev(dev, &ap->link, ENABLED)
+		return;
+	/*
+	 * Disable link to save power.  An imx ahci port can't be recovered
+	 * without full reset once the pddq mode is enabled making it
+	 * impossible to use as part of libata LPM.
+	 */
+	reg_val = readl(mmio + PORT_PHY_CTL);
+	writel(reg_val | PORT_PHY_CTL_PDDQ_LOC, mmio + PORT_PHY_CTL);
+	regmap_update_bits(imxpriv->gpr, IOMUXC_GPR13,
+			IMX6Q_GPR13_SATA_MPLL_CLK_EN,
+			!IMX6Q_GPR13_SATA_MPLL_CLK_EN);
+	clk_disable_unprepare(imxpriv->sata_ref_clk);
+	imxpriv->no_device = true;
+}
+
+static struct ata_port_operations ahci_imx_ops = {
+	.inherits	= &ahci_platform_ops,
+	.error_handler	= ahci_imx_error_handler,
+};
+
+static const struct ata_port_info ahci_imx_port_info = {
+	.flags		= AHCI_FLAG_COMMON,
+	.pio_mask	= ATA_PIO4,
+	.udma_mask	= ATA_UDMA6,
+	.port_ops	= &ahci_imx_ops,
 };
 
 static int imx6q_sata_init(struct device *dev, void __iomem *mmio)
@@ -117,9 +170,51 @@ static void imx6q_sata_exit(struct device *dev)
 	clk_disable_unprepare(imxpriv->sata_ref_clk);
 }
 
+static int imx_ahci_suspend(struct device *dev)
+{
+	struct imx_ahci_priv *imxpriv =  dev_get_drvdata(dev->parent);
+
+	/*
+	 * If no_device is set, The CLKs had been gated off in the
+	 * initialization so don't do it again here.
+	 */
+	if (!imxpriv->no_device) {
+		regmap_update_bits(imxpriv->gpr, IOMUXC_GPR13,
+				IMX6Q_GPR13_SATA_MPLL_CLK_EN,
+				!IMX6Q_GPR13_SATA_MPLL_CLK_EN);
+		clk_disable_unprepare(imxpriv->sata_ref_clk);
+	}
+
+	return 0;
+}
+
+static int imx_ahci_resume(struct device *dev)
+{
+	struct imx_ahci_priv *imxpriv =  dev_get_drvdata(dev->parent);
+	int ret;
+
+	if (!imxpriv->no_device) {
+		ret = clk_prepare_enable(imxpriv->sata_ref_clk);
+		if (ret < 0) {
+			dev_err(dev, "pre-enable sata_ref clock err:%d\n", ret);
+			return ret;
+		}
+
+		regmap_update_bits(imxpriv->gpr, IOMUXC_GPR13,
+				IMX6Q_GPR13_SATA_MPLL_CLK_EN,
+				IMX6Q_GPR13_SATA_MPLL_CLK_EN);
+		usleep_range(1000, 2000);
+	}
+
+	return 0;
+}
+
 static struct ahci_platform_data imx6q_sata_pdata = {
 	.init = imx6q_sata_init,
 	.exit = imx6q_sata_exit,
+	.ata_port_info = &ahci_imx_port_info,
+	.suspend = imx_ahci_suspend,
+	.resume = imx_ahci_resume,
 };
 
 static const struct of_device_id imx_ahci_of_match[] = {
@@ -152,6 +247,8 @@ static int imx_ahci_probe(struct platform_device *pdev)
 	ahci_dev = &ahci_pdev->dev;
 	ahci_dev->parent = dev;
 
+	imxpriv->no_device = false;
+	imxpriv->first_time = true;
 	imxpriv->ahb_clk = devm_clk_get(dev, "ahb");
 	if (IS_ERR(imxpriv->ahb_clk)) {
 		dev_err(dev, "can't get ahb clock.\n");
diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
index 2daaee05cab1..7708ca71f14e 100644
--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -49,10 +49,11 @@ static struct platform_device_id ahci_devtype[] = {
 };
 MODULE_DEVICE_TABLE(platform, ahci_devtype);
 
-static struct ata_port_operations ahci_platform_ops = {
+struct ata_port_operations ahci_platform_ops = {
 	.inherits	= &ahci_ops,
 	.host_stop	= ahci_host_stop,
 };
+EXPORT_SYMBOL_GPL(ahci_platform_ops);
 
 static struct ata_port_operations ahci_platform_retry_srst_ops = {
 	.inherits	= &ahci_pmp_retry_srst_ops,
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index b67086fde1f1..7e2a1b38093e 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -89,7 +89,6 @@ static int ahci_pmp_retry_softreset(struct ata_link *link, unsigned int *class,
 static int ahci_hardreset(struct ata_link *link, unsigned int *class,
 			  unsigned long deadline);
 static void ahci_postreset(struct ata_link *link, unsigned int *class);
-static void ahci_error_handler(struct ata_port *ap);
 static void ahci_post_internal_cmd(struct ata_queued_cmd *qc);
 static void ahci_dev_config(struct ata_device *dev);
 #ifdef CONFIG_PM
@@ -1982,7 +1981,7 @@ static void ahci_thaw(struct ata_port *ap)
 	writel(pp->intr_mask, port_mmio + PORT_IRQ_MASK);
 }
 
-static void ahci_error_handler(struct ata_port *ap)
+void ahci_error_handler(struct ata_port *ap)
 {
 	if (!(ap->pflags & ATA_PFLAG_FROZEN)) {
 		/* restart engine */
@@ -1995,6 +1994,7 @@ static void ahci_error_handler(struct ata_port *ap)
 	if (!ata_dev_enabled(ap->link.device))
 		ahci_stop_engine(ap);
 }
+EXPORT_SYMBOL_GPL(ahci_error_handler);
 
 static void ahci_post_internal_cmd(struct ata_queued_cmd *qc)
 {
-- 
cgit 


From 05209f457069e595ce0262a9032cbade05398571 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Sat, 12 Oct 2013 15:15:31 +0800
Subject: spi: fsl-dspi: add missing clk_disable_unprepare() in dspi_remove()

clock source is prepared and enabled by clk_prepare_enable()
in probe function, but no disable or unprepare in remove.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-fsl-dspi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/spi/spi-fsl-dspi.c b/drivers/spi/spi-fsl-dspi.c
index dc3d4eb0531c..3c26fb297cf1 100644
--- a/drivers/spi/spi-fsl-dspi.c
+++ b/drivers/spi/spi-fsl-dspi.c
@@ -536,6 +536,7 @@ static int dspi_remove(struct platform_device *pdev)
 
 	/* Disconnect from the SPI framework */
 	spi_bitbang_stop(&dspi->bitbang);
+	clk_disable_unprepare(dspi->clk);
 	spi_master_put(dspi->bitbang.master);
 
 	return 0;
-- 
cgit 


From 1431fcb74eb5c67d3c38db5e5fe60b726c204273 Mon Sep 17 00:00:00 2001
From: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Date: Mon, 14 Oct 2013 10:46:55 +0200
Subject: mac80211: fix honouring rate flags in low-rate transmit

Transmissions with the IEEE80211_TX_CTL_NO_CCK_RATE flag set
(which can come from userspace) were no longer guaranteed to
be transmitted with allowed rates since commit 2103dec14792b
("mac80211: select and adjust bitrates according to channel
mode") due to a missing rate_flags check in that commit. The
commit also introduced the need to check the 5/10 MHz flags
but accidentally didn't. Fix it by adding the missing check.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/rate.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index e126605cec66..7f7ce1173bf6 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -247,6 +247,9 @@ static void __rate_control_send_low(struct ieee80211_hw *hw,
 
 	info->control.rates[0].idx = 0;
 	for (i = 0; i < sband->n_bitrates; i++) {
+		if ((rate_flags & sband->bitrates[i].flags) != rate_flags)
+			continue;
+
 		if (!rate_supported(sta, sband->band, i))
 			continue;
 
-- 
cgit 


From 1d2d350bbf4a1ba6cef5e3dbb63c66da11814d9a Mon Sep 17 00:00:00 2001
From: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Date: Mon, 14 Oct 2013 11:04:28 +0200
Subject: mac80211: respect rate mask in TX

Bitrate mask were not respected in transmissions, causing (for
example) P2P GO/client to use CCK rates for auth and assoc frames.
Fix it by considering the rate mask in __rate_control_send_low().

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/rate.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/net/mac80211/rate.c b/net/mac80211/rate.c
index 7f7ce1173bf6..22b223f13c9f 100644
--- a/net/mac80211/rate.c
+++ b/net/mac80211/rate.c
@@ -235,7 +235,8 @@ static void rc_send_low_basicrate(s8 *idx, u32 basic_rates,
 static void __rate_control_send_low(struct ieee80211_hw *hw,
 				    struct ieee80211_supported_band *sband,
 				    struct ieee80211_sta *sta,
-				    struct ieee80211_tx_info *info)
+				    struct ieee80211_tx_info *info,
+				    u32 rate_mask)
 {
 	int i;
 	u32 rate_flags =
@@ -247,6 +248,9 @@ static void __rate_control_send_low(struct ieee80211_hw *hw,
 
 	info->control.rates[0].idx = 0;
 	for (i = 0; i < sband->n_bitrates; i++) {
+		if (!(rate_mask & BIT(i)))
+			continue;
+
 		if ((rate_flags & sband->bitrates[i].flags) != rate_flags)
 			continue;
 
@@ -277,7 +281,8 @@ bool rate_control_send_low(struct ieee80211_sta *pubsta,
 	bool use_basicrate = false;
 
 	if (!pubsta || !priv_sta || rc_no_data_or_no_ack_use_min(txrc)) {
-		__rate_control_send_low(txrc->hw, sband, pubsta, info);
+		__rate_control_send_low(txrc->hw, sband, pubsta, info,
+					txrc->rate_idx_mask);
 
 		if (!pubsta && txrc->bss) {
 			mcast_rate = txrc->bss_conf->mcast_rate[sband->band];
@@ -659,7 +664,8 @@ void ieee80211_get_tx_rates(struct ieee80211_vif *vif,
 		rate_control_apply_mask(sdata, sta, sband, info, dest, max_rates);
 
 	if (dest[0].idx < 0)
-		__rate_control_send_low(&sdata->local->hw, sband, sta, info);
+		__rate_control_send_low(&sdata->local->hw, sband, sta, info,
+					sdata->rc_rateidx_mask[info->band]);
 
 	if (sta)
 		rate_fixup_ratelist(vif, sband, info, dest, max_rates);
-- 
cgit 


From ab93e014f35374a8169b0f465fccee69e04ea34c Mon Sep 17 00:00:00 2001
From: Robert Baldyga <r.baldyga@samsung.com>
Date: Thu, 19 Sep 2013 11:50:17 +0200
Subject: usb: gadget: s3c-hsotg: fix "protocol stall" handling

After normal handling of SetupDone interrupt, XferCompl interrupt occurs, and
then we enqueue new setup request. But when ep0 is stalled, there is no
XferCompl, so we have to enqueue setup request immediately after stalling ep.
Otherwise incoming control requests won't be processed correctly.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/s3c-hsotg.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 93f786669dd5..4faf5e70e093 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -1164,6 +1164,8 @@ static int s3c_hsotg_process_req_feature(struct s3c_hsotg *hsotg,
 	return 1;
 }
 
+static void s3c_hsotg_enqueue_setup(struct s3c_hsotg *hsotg);
+
 /**
  * s3c_hsotg_process_control - process a control request
  * @hsotg: The device state
@@ -1263,11 +1265,15 @@ static void s3c_hsotg_process_control(struct s3c_hsotg *hsotg,
 		 * don't believe we need to anything more to get the EP
 		 * to reply with a STALL packet
 		 */
+
+		 /*
+		  * complete won't be called, so we enqueue
+		  * setup request here
+		  */
+		 s3c_hsotg_enqueue_setup(hsotg);
 	}
 }
 
-static void s3c_hsotg_enqueue_setup(struct s3c_hsotg *hsotg);
-
 /**
  * s3c_hsotg_complete_setup - completion of a setup transfer
  * @ep: The endpoint the request was on.
-- 
cgit 


From 5cb2ff0cdd60aef07c592a9d09349b5993fdf9b4 Mon Sep 17 00:00:00 2001
From: Robert Baldyga <r.baldyga@samsung.com>
Date: Thu, 19 Sep 2013 11:50:18 +0200
Subject: usb: gadget: s3c-hsotg: fix s3c_hsotg_write_fifo function for
 dedicated fifo mode

In s3c_hsotg_write_fifo function PTxFEmp/NPTxFEmp interrupts are enabled
only in shared-fifo mode. In dedicated-fifo mode they should not be used
(when enabled then cause interrupt storm).

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/s3c-hsotg.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 4faf5e70e093..bb173852ae4c 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -563,9 +563,11 @@ static int s3c_hsotg_write_fifo(struct s3c_hsotg *hsotg,
 	if (to_write > max_transfer) {
 		to_write = max_transfer;
 
-		s3c_hsotg_en_gsint(hsotg,
-				   periodic ? GINTSTS_PTxFEmp :
-				   GINTSTS_NPTxFEmp);
+		/* it's needed only when we do not use dedicated fifos */
+		if (!hsotg->dedicated_fifos)
+			s3c_hsotg_en_gsint(hsotg,
+					   periodic ? GINTSTS_PTxFEmp :
+					   GINTSTS_NPTxFEmp);
 	}
 
 	/* see if we can write data */
@@ -590,9 +592,11 @@ static int s3c_hsotg_write_fifo(struct s3c_hsotg *hsotg,
 		 * is more room left.
 		 */
 
-		s3c_hsotg_en_gsint(hsotg,
-				   periodic ? GINTSTS_PTxFEmp :
-				   GINTSTS_NPTxFEmp);
+		/* it's needed only when we do not use dedicated fifos */
+		if (!hsotg->dedicated_fifos)
+			s3c_hsotg_en_gsint(hsotg,
+					   periodic ? GINTSTS_PTxFEmp :
+					   GINTSTS_NPTxFEmp);
 	}
 
 	dev_dbg(hsotg->dev, "write %d/%d, can_write %d, done %d\n",
-- 
cgit 


From afcf4169a41ef02d3f833f4eccac11038bd2b39c Mon Sep 17 00:00:00 2001
From: Robert Baldyga <r.baldyga@samsung.com>
Date: Thu, 19 Sep 2013 11:50:19 +0200
Subject: usb: gadget: s3c-hsotg: fix endpoint interrupts handling

When s3c_hsotg_trytx is called for ep without enqueued request, interrupts
for this ep are disabled, to prevent interrupt flooding. Interrupts are
enabled when new request for this ep is starting.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/s3c-hsotg.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index bb173852ae4c..30cead183d50 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -841,6 +841,9 @@ static void s3c_hsotg_start_req(struct s3c_hsotg *hsotg,
 
 	dev_dbg(hsotg->dev, "%s: DxEPCTL=0x%08x\n",
 		__func__, readl(hsotg->regs + epctrl_reg));
+
+	/* enable ep interrupts */
+	s3c_hsotg_ctrl_epint(hsotg, hs_ep->index, hs_ep->dir_in, 1);
 }
 
 /**
@@ -1814,8 +1817,16 @@ static int s3c_hsotg_trytx(struct s3c_hsotg *hsotg,
 {
 	struct s3c_hsotg_req *hs_req = hs_ep->req;
 
-	if (!hs_ep->dir_in || !hs_req)
+	if (!hs_ep->dir_in || !hs_req) {
+		/**
+		 * if request is not enqueued, we disable interrupts
+		 * for endpoints, excepting ep0
+		 */
+		if (hs_ep->index != 0)
+			s3c_hsotg_ctrl_epint(hsotg, hs_ep->index,
+					     hs_ep->dir_in, 0);
 		return 0;
+	}
 
 	if (hs_req->req.actual < hs_req->req.length) {
 		dev_dbg(hsotg->dev, "trying to write more for ep%d\n",
-- 
cgit 


From 7e8046505c9fda30c3c2a64f1cc84390e2458c54 Mon Sep 17 00:00:00 2001
From: Robert Baldyga <r.baldyga@samsung.com>
Date: Thu, 19 Sep 2013 11:50:20 +0200
Subject: usb: gadget: s3c-hsotg: add DAINT masking

In OEPInt/IEPInt interrupts handling added bitwise and of DAINT and
DAINTMSK, because we should handle masked interrupts only.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/s3c-hsotg.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 30cead183d50..8d71a9b09005 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -2433,10 +2433,14 @@ irq_retry:
 
 	if (gintsts & (GINTSTS_OEPInt | GINTSTS_IEPInt)) {
 		u32 daint = readl(hsotg->regs + DAINT);
-		u32 daint_out = daint >> DAINT_OutEP_SHIFT;
-		u32 daint_in = daint & ~(daint_out << DAINT_OutEP_SHIFT);
+		u32 daintmsk = readl(hsotg->regs + DAINTMSK);
+		u32 daint_out, daint_in;
 		int ep;
 
+		daint &= daintmsk;
+		daint_out = daint >> DAINT_OutEP_SHIFT;
+		daint_in = daint & ~(daint_out << DAINT_OutEP_SHIFT);
+
 		dev_dbg(hsotg->dev, "%s: daint=%08x\n", __func__, daint);
 
 		for (ep = 0; ep < 15 && daint_out; ep++, daint_out >>= 1) {
-- 
cgit 


From a18ed7b036454794dc2d18b92e531c76953d556f Mon Sep 17 00:00:00 2001
From: Robert Baldyga <r.baldyga@samsung.com>
Date: Thu, 19 Sep 2013 11:50:21 +0200
Subject: usb: gadget: s3c-hsotg: fix "halted" property updating

Property "halted" of s3c_hsotg_ep structure is actually initialised when ep
enabled, and changed when halt is set/cleared.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/s3c-hsotg.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 8d71a9b09005..a854cb3c965f 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -2641,6 +2641,7 @@ static int s3c_hsotg_ep_enable(struct usb_ep *ep,
 	/* default, set to non-periodic */
 	hs_ep->isochronous = 0;
 	hs_ep->periodic = 0;
+	hs_ep->halted = 0;
 	hs_ep->interval = desc->bInterval;
 
 	if (hs_ep->interval > 1 && hs_ep->mc > 1)
@@ -2842,6 +2843,8 @@ static int s3c_hsotg_ep_sethalt(struct usb_ep *ep, int value)
 
 	writel(epctl, hs->regs + epreg);
 
+	hs_ep->halted = value;
+
 	return 0;
 }
 
-- 
cgit 


From bd9ef7bf0c8e129f24b28366e6c7e9ea92a7aed6 Mon Sep 17 00:00:00 2001
From: Robert Baldyga <r.baldyga@samsung.com>
Date: Thu, 19 Sep 2013 11:50:22 +0200
Subject: usb: gadget: s3c-hsotg: fix clear feature ENDPOINT_HALT

All requests for endpoint are completed when it was halted and the halt was
cleared by CLEAR_FEATURE, but not when new state is same as previous.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/s3c-hsotg.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index a854cb3c965f..70615585b48d 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -1115,6 +1115,7 @@ static int s3c_hsotg_process_req_feature(struct s3c_hsotg *hsotg,
 	bool set = (ctrl->bRequest == USB_REQ_SET_FEATURE);
 	struct s3c_hsotg_ep *ep;
 	int ret;
+	bool halted;
 
 	dev_dbg(hsotg->dev, "%s: %s_FEATURE\n",
 		__func__, set ? "SET" : "CLEAR");
@@ -1129,6 +1130,8 @@ static int s3c_hsotg_process_req_feature(struct s3c_hsotg *hsotg,
 
 		switch (le16_to_cpu(ctrl->wValue)) {
 		case USB_ENDPOINT_HALT:
+			halted = ep->halted;
+
 			s3c_hsotg_ep_sethalt(&ep->ep, set);
 
 			ret = s3c_hsotg_send_reply(hsotg, ep0, NULL, 0);
@@ -1138,7 +1141,12 @@ static int s3c_hsotg_process_req_feature(struct s3c_hsotg *hsotg,
 				return ret;
 			}
 
-			if (!set) {
+			/*
+			 * we have to complete all requests for ep if it was
+			 * halted, and the halt was cleared by CLEAR_FEATURE
+			 */
+
+			if (!set && halted) {
 				/*
 				 * If we have request in progress,
 				 * then complete it
-- 
cgit 


From 8acc8296f94349e7a933dd97e8f5d0ec16d4b4db Mon Sep 17 00:00:00 2001
From: Robert Baldyga <r.baldyga@samsung.com>
Date: Thu, 19 Sep 2013 11:50:23 +0200
Subject: usb: gadget: s3c-hsotg: fix interrupt configuration in dedicated-fifo
 mode

In dedicated-fifo mode TxFIFOEmpty interrupt should be asserted when TxFIFO
for this endpoint is completly empty, so NPTxFEmpLvl and PTxFEmpLvl bits are
set in GAHBCFG register.
In DIEPMSK register INTknTXFEmpMsk is set, becouse it's needed to indicate
FIFO Empty state.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/s3c-hsotg.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 70615585b48d..a9cae1ff0449 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -2304,15 +2304,19 @@ static void s3c_hsotg_core_init(struct s3c_hsotg *hsotg)
 		       GAHBCFG_HBstLen_Incr4,
 		       hsotg->regs + GAHBCFG);
 	else
-		writel(GAHBCFG_GlblIntrEn, hsotg->regs + GAHBCFG);
+		writel(((hsotg->dedicated_fifos) ? (GAHBCFG_NPTxFEmpLvl |
+						    GAHBCFG_PTxFEmpLvl) : 0) |
+		       GAHBCFG_GlblIntrEn,
+		       hsotg->regs + GAHBCFG);
 
 	/*
-	 * Enabling INTknTXFEmpMsk here seems to be a big mistake, we end
-	 * up being flooded with interrupts if the host is polling the
-	 * endpoint to try and read data.
+	 * If INTknTXFEmpMsk is enabled, it's important to disable ep interrupts
+	 * when we have no data to transfer. Otherwise we get being flooded by
+	 * interrupts.
 	 */
 
-	writel(((hsotg->dedicated_fifos) ? DIEPMSK_TxFIFOEmpty : 0) |
+	writel(((hsotg->dedicated_fifos) ? DIEPMSK_TxFIFOEmpty |
+	       DIEPMSK_INTknTXFEmpMsk : 0) |
 	       DIEPMSK_EPDisbldMsk | DIEPMSK_XferComplMsk |
 	       DIEPMSK_TimeOUTMsk | DIEPMSK_AHBErrMsk |
 	       DIEPMSK_INTknEPMisMsk,
-- 
cgit 


From 811f33033f9e6a00756e38990d82214c8c619f4c Mon Sep 17 00:00:00 2001
From: Robert Baldyga <r.baldyga@samsung.com>
Date: Tue, 24 Sep 2013 11:24:28 +0200
Subject: usb: gadget: s3c-hsotg: fix can_write limit for non-periodic
 endpoints

Value of can_write variable in s3c_hsotg_write_fifo function should be limited
to 512 only for non-periodic endpoints. There was some discrepancy between
comment and code, becouse comment suggests correct behavior, but in the code
limit was applied to periodic endpoints too. So there is additional check
causing the limitation concerns only non-periodic endpoints.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/s3c-hsotg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index a9cae1ff0449..9875d9c0823f 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -552,7 +552,7 @@ static int s3c_hsotg_write_fifo(struct s3c_hsotg *hsotg,
 	 * FIFO, requests of >512 cause the endpoint to get stuck with a
 	 * fragment of the end of the transfer in it.
 	 */
-	if (can_write > 512)
+	if (can_write > 512 && !periodic)
 		can_write = 512;
 
 	/*
-- 
cgit 


From b1e73124104d0c4c6c9a073afea07ff0b73d5787 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 06:33:51 -0700
Subject: Bluetooth: Use hci_request for discoverable timeout handling

When the discoverable timeout triggers and it is time to turn inquiry
scan back off, use the HCI request framework to do it.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 7add9c96e32c..c53f7f9c630a 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1789,6 +1789,7 @@ static void hci_power_off(struct work_struct *work)
 static void hci_discov_off(struct work_struct *work)
 {
 	struct hci_dev *hdev;
+	struct hci_request req;
 	u8 scan = SCAN_PAGE;
 
 	hdev = container_of(work, struct hci_dev, discov_off.work);
@@ -1797,7 +1798,9 @@ static void hci_discov_off(struct work_struct *work)
 
 	hci_dev_lock(hdev);
 
-	hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, sizeof(scan), &scan);
+	hci_req_init(&req, hdev);
+	hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, sizeof(scan), &scan);
+	hci_req_run(&req, NULL);
 
 	hdev->discov_timeout = 0;
 
-- 
cgit 


From e66cf161098a634dc96e32d0089c5767cf25668a Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Tue, 15 Oct 2013 15:18:08 +0100
Subject: GFS2: Use lockref for glocks

Currently glocks have an atomic reference count and also a spinlock
which covers various internal fields, such as the state. This intent of
this patch is to replace the spinlock and the atomic reference count
with a lockref structure. This contains a spinlock which we can continue
to use as before, and a reference counter which is used in conjuction
with the spinlock to replace the previous atomic counter.

As a result of this there are some new rules for reference counting on
glocks. We need to distinguish between reference count changes under
gl_spin (which are now just increment or decrement of the new counter,
provided the count cannot hit zero) and those which are outside of
gl_spin, but which now take gl_spin internally.

The conversion is relatively straight forward. There is probably some
further clean up which can be done, but the priority at this stage is to
make the change in as simple a manner as possible.

A consequence of this change is that the reference count is being
decoupled from the lru list processing. This should allow future
adoption of the lru_list code with glocks in due course.

The reason for using the "dead" state and not just relying on 0 being
the "invalid state" is so that in due course 0 ref counts can be
allowable. The intent is to eventually be able to remove the ref count
changes which are currently hidden away in state_change().

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---
 fs/gfs2/glock.c         | 83 ++++++++++++++++++++++++-------------------------
 fs/gfs2/glock.h         |  2 --
 fs/gfs2/glops.c         |  4 +--
 fs/gfs2/incore.h        |  5 +--
 include/linux/lockref.h |  6 ++++
 lib/lockref.c           |  1 +
 6 files changed, 52 insertions(+), 49 deletions(-)

diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index c2f41b4d00b9..e66a8009aff1 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -31,6 +31,7 @@
 #include <linux/bit_spinlock.h>
 #include <linux/percpu.h>
 #include <linux/list_sort.h>
+#include <linux/lockref.h>
 
 #include "gfs2.h"
 #include "incore.h"
@@ -129,10 +130,10 @@ void gfs2_glock_free(struct gfs2_glock *gl)
  *
  */
 
-void gfs2_glock_hold(struct gfs2_glock *gl)
+static void gfs2_glock_hold(struct gfs2_glock *gl)
 {
-	GLOCK_BUG_ON(gl, atomic_read(&gl->gl_ref) == 0);
-	atomic_inc(&gl->gl_ref);
+	GLOCK_BUG_ON(gl, __lockref_is_dead(&gl->gl_lockref));
+	lockref_get(&gl->gl_lockref);
 }
 
 /**
@@ -186,20 +187,6 @@ static void gfs2_glock_remove_from_lru(struct gfs2_glock *gl)
 	spin_unlock(&lru_lock);
 }
 
-/**
- * gfs2_glock_put_nolock() - Decrement reference count on glock
- * @gl: The glock to put
- *
- * This function should only be used if the caller has its own reference
- * to the glock, in addition to the one it is dropping.
- */
-
-void gfs2_glock_put_nolock(struct gfs2_glock *gl)
-{
-	if (atomic_dec_and_test(&gl->gl_ref))
-		GLOCK_BUG_ON(gl, 1);
-}
-
 /**
  * gfs2_glock_put() - Decrement reference count on glock
  * @gl: The glock to put
@@ -211,17 +198,22 @@ void gfs2_glock_put(struct gfs2_glock *gl)
 	struct gfs2_sbd *sdp = gl->gl_sbd;
 	struct address_space *mapping = gfs2_glock2aspace(gl);
 
-	if (atomic_dec_and_lock(&gl->gl_ref, &lru_lock)) {
-		__gfs2_glock_remove_from_lru(gl);
-		spin_unlock(&lru_lock);
-		spin_lock_bucket(gl->gl_hash);
-		hlist_bl_del_rcu(&gl->gl_list);
-		spin_unlock_bucket(gl->gl_hash);
-		GLOCK_BUG_ON(gl, !list_empty(&gl->gl_holders));
-		GLOCK_BUG_ON(gl, mapping && mapping->nrpages);
-		trace_gfs2_glock_put(gl);
-		sdp->sd_lockstruct.ls_ops->lm_put_lock(gl);
-	}
+	if (lockref_put_or_lock(&gl->gl_lockref))
+		return;
+
+	lockref_mark_dead(&gl->gl_lockref);
+
+	spin_lock(&lru_lock);
+	__gfs2_glock_remove_from_lru(gl);
+	spin_unlock(&lru_lock);
+	spin_unlock(&gl->gl_lockref.lock);
+	spin_lock_bucket(gl->gl_hash);
+	hlist_bl_del_rcu(&gl->gl_list);
+	spin_unlock_bucket(gl->gl_hash);
+	GLOCK_BUG_ON(gl, !list_empty(&gl->gl_holders));
+	GLOCK_BUG_ON(gl, mapping && mapping->nrpages);
+	trace_gfs2_glock_put(gl);
+	sdp->sd_lockstruct.ls_ops->lm_put_lock(gl);
 }
 
 /**
@@ -244,7 +236,7 @@ static struct gfs2_glock *search_bucket(unsigned int hash,
 			continue;
 		if (gl->gl_sbd != sdp)
 			continue;
-		if (atomic_inc_not_zero(&gl->gl_ref))
+		if (lockref_get_not_dead(&gl->gl_lockref))
 			return gl;
 	}
 
@@ -396,10 +388,11 @@ static void state_change(struct gfs2_glock *gl, unsigned int new_state)
 	held2 = (new_state != LM_ST_UNLOCKED);
 
 	if (held1 != held2) {
+		GLOCK_BUG_ON(gl, __lockref_is_dead(&gl->gl_lockref));
 		if (held2)
-			gfs2_glock_hold(gl);
+			gl->gl_lockref.count++;
 		else
-			gfs2_glock_put_nolock(gl);
+			gl->gl_lockref.count--;
 	}
 	if (held1 && held2 && list_empty(&gl->gl_holders))
 		clear_bit(GLF_QUEUED, &gl->gl_flags);
@@ -626,9 +619,9 @@ out:
 out_sched:
 	clear_bit(GLF_LOCK, &gl->gl_flags);
 	smp_mb__after_clear_bit();
-	gfs2_glock_hold(gl);
+	gl->gl_lockref.count++;
 	if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
-		gfs2_glock_put_nolock(gl);
+		gl->gl_lockref.count--;
 	return;
 
 out_unlock:
@@ -754,7 +747,7 @@ int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number,
 	gl->gl_sbd = sdp;
 	gl->gl_flags = 0;
 	gl->gl_name = name;
-	atomic_set(&gl->gl_ref, 1);
+	gl->gl_lockref.count = 1;
 	gl->gl_state = LM_ST_UNLOCKED;
 	gl->gl_target = LM_ST_UNLOCKED;
 	gl->gl_demote_state = LM_ST_EXCLUSIVE;
@@ -1356,10 +1349,10 @@ void gfs2_glock_complete(struct gfs2_glock *gl, int ret)
 		}
 	}
 
-	spin_unlock(&gl->gl_spin);
+	gl->gl_lockref.count++;
 	set_bit(GLF_REPLY_PENDING, &gl->gl_flags);
-	smp_wmb();
-	gfs2_glock_hold(gl);
+	spin_unlock(&gl->gl_spin);
+
 	if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
 		gfs2_glock_put(gl);
 }
@@ -1404,15 +1397,19 @@ __acquires(&lru_lock)
 	while(!list_empty(list)) {
 		gl = list_entry(list->next, struct gfs2_glock, gl_lru);
 		list_del_init(&gl->gl_lru);
+		if (!spin_trylock(&gl->gl_spin)) {
+			list_add(&gl->gl_lru, &lru_list);
+			atomic_inc(&lru_count);
+			continue;
+		}
 		clear_bit(GLF_LRU, &gl->gl_flags);
-		gfs2_glock_hold(gl);
 		spin_unlock(&lru_lock);
-		spin_lock(&gl->gl_spin);
+		gl->gl_lockref.count++;
 		if (demote_ok(gl))
 			handle_callback(gl, LM_ST_UNLOCKED, 0, false);
 		WARN_ON(!test_and_clear_bit(GLF_LOCK, &gl->gl_flags));
 		if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
-			gfs2_glock_put_nolock(gl);
+			gl->gl_lockref.count--;
 		spin_unlock(&gl->gl_spin);
 		spin_lock(&lru_lock);
 	}
@@ -1493,7 +1490,7 @@ static void examine_bucket(glock_examiner examiner, const struct gfs2_sbd *sdp,
 
 	rcu_read_lock();
 	hlist_bl_for_each_entry_rcu(gl, pos, head, gl_list) {
-		if ((gl->gl_sbd == sdp) && atomic_inc_not_zero(&gl->gl_ref))
+		if ((gl->gl_sbd == sdp) && lockref_get_not_dead(&gl->gl_lockref))
 			examiner(gl);
 	}
 	rcu_read_unlock();
@@ -1746,7 +1743,7 @@ int gfs2_dump_glock(struct seq_file *seq, const struct gfs2_glock *gl)
 		  state2str(gl->gl_demote_state), dtime,
 		  atomic_read(&gl->gl_ail_count),
 		  atomic_read(&gl->gl_revokes),
-		  atomic_read(&gl->gl_ref), gl->gl_hold_time);
+		  (int)gl->gl_lockref.count, gl->gl_hold_time);
 
 	list_for_each_entry(gh, &gl->gl_holders, gh_list) {
 		error = dump_holder(seq, gh);
@@ -1902,7 +1899,7 @@ static int gfs2_glock_iter_next(struct gfs2_glock_iter *gi)
 			gi->nhash = 0;
 		}
 	/* Skip entries for other sb and dead entries */
-	} while (gi->sdp != gi->gl->gl_sbd || atomic_read(&gi->gl->gl_ref) == 0);
+	} while (gi->sdp != gi->gl->gl_sbd || __lockref_is_dead(&gl->gl_lockref));
 
 	return 0;
 }
diff --git a/fs/gfs2/glock.h b/fs/gfs2/glock.h
index 69f66e3d22bf..6647d77366ba 100644
--- a/fs/gfs2/glock.h
+++ b/fs/gfs2/glock.h
@@ -181,8 +181,6 @@ static inline struct address_space *gfs2_glock2aspace(struct gfs2_glock *gl)
 extern int gfs2_glock_get(struct gfs2_sbd *sdp, u64 number,
 			  const struct gfs2_glock_operations *glops,
 			  int create, struct gfs2_glock **glp);
-extern void gfs2_glock_hold(struct gfs2_glock *gl);
-extern void gfs2_glock_put_nolock(struct gfs2_glock *gl);
 extern void gfs2_glock_put(struct gfs2_glock *gl);
 extern void gfs2_holder_init(struct gfs2_glock *gl, unsigned int state,
 			     unsigned flags, struct gfs2_holder *gh);
diff --git a/fs/gfs2/glops.c b/fs/gfs2/glops.c
index e2e0a90396e7..db908f697139 100644
--- a/fs/gfs2/glops.c
+++ b/fs/gfs2/glops.c
@@ -525,9 +525,9 @@ static void iopen_go_callback(struct gfs2_glock *gl, bool remote)
 
 	if (gl->gl_demote_state == LM_ST_UNLOCKED &&
 	    gl->gl_state == LM_ST_SHARED && ip) {
-		gfs2_glock_hold(gl);
+		gl->gl_lockref.count++;
 		if (queue_work(gfs2_delete_workqueue, &gl->gl_delete) == 0)
-			gfs2_glock_put_nolock(gl);
+			gl->gl_lockref.count--;
 	}
 }
 
diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index 2ab4f8d8f4c4..bb88e417231f 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -21,6 +21,7 @@
 #include <linux/rbtree.h>
 #include <linux/ktime.h>
 #include <linux/percpu.h>
+#include <linux/lockref.h>
 
 #define DIO_WAIT	0x00000010
 #define DIO_METADATA	0x00000020
@@ -321,9 +322,9 @@ struct gfs2_glock {
 	struct gfs2_sbd *gl_sbd;
 	unsigned long gl_flags;		/* GLF_... */
 	struct lm_lockname gl_name;
-	atomic_t gl_ref;
 
-	spinlock_t gl_spin;
+	struct lockref gl_lockref;
+#define gl_spin gl_lockref.lock
 
 	/* State fields protected by gl_spin */
 	unsigned int gl_state:2,	/* Current state */
diff --git a/include/linux/lockref.h b/include/linux/lockref.h
index f279ed9a9163..13dfd36a3294 100644
--- a/include/linux/lockref.h
+++ b/include/linux/lockref.h
@@ -36,4 +36,10 @@ extern int lockref_put_or_lock(struct lockref *);
 extern void lockref_mark_dead(struct lockref *);
 extern int lockref_get_not_dead(struct lockref *);
 
+/* Must be called under spinlock for reliable results */
+static inline int __lockref_is_dead(const struct lockref *l)
+{
+	return ((int)l->count < 0);
+}
+
 #endif /* __LINUX_LOCKREF_H */
diff --git a/lib/lockref.c b/lib/lockref.c
index e2cd2c0a8821..8ff162fe3413 100644
--- a/lib/lockref.c
+++ b/lib/lockref.c
@@ -136,6 +136,7 @@ void lockref_mark_dead(struct lockref *lockref)
 	assert_spin_locked(&lockref->lock);
 	lockref->count = -128;
 }
+EXPORT_SYMBOL(lockref_mark_dead);
 
 /**
  * lockref_get_not_dead - Increments count unless the ref is dead
-- 
cgit 


From 441ad2d04123eecb06d7c14948a0e7b07bf75aa5 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 06:33:52 -0700
Subject: Bluetooth: Update advertising data based on management commands

Magically updating the advertising data when some random command enables
advertising in the controller is not really a good idea. It also caused
a bit of complicated code with the exported hci_udpate_ad function that
is shared from many places.

This patch consolidates the advertising data update into the management
core. It also makes sure that when powering on with LE enabled or later
on enabling LE the controller has a good default for advertising data.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h |   2 -
 net/bluetooth/hci_core.c         |  87 +--------------------------
 net/bluetooth/hci_event.c        |   8 ---
 net/bluetooth/mgmt.c             | 126 +++++++++++++++++++++++++++++++++++----
 4 files changed, 116 insertions(+), 107 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 4e208420d84c..4a186ec99132 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1183,8 +1183,6 @@ struct hci_sec_filter {
 #define hci_req_lock(d)		mutex_lock(&d->req_lock)
 #define hci_req_unlock(d)	mutex_unlock(&d->req_lock)
 
-void hci_update_ad(struct hci_request *req);
-
 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
 					u16 latency, u16 to_multiplier);
 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index c53f7f9c630a..a49ca4869621 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -685,10 +685,8 @@ static void hci_init3_req(struct hci_request *req, unsigned long opt)
 	if (hdev->commands[5] & 0x10)
 		hci_setup_link_policy(req);
 
-	if (lmp_le_capable(hdev)) {
+	if (lmp_le_capable(hdev))
 		hci_set_le_support(req);
-		hci_update_ad(req);
-	}
 
 	/* Read features beyond page 1 if available */
 	for (p = 2; p < HCI_MAX_PAGES && p <= hdev->max_page; p++) {
@@ -1127,89 +1125,6 @@ done:
 	return err;
 }
 
-static u8 create_ad(struct hci_dev *hdev, u8 *ptr)
-{
-	u8 ad_len = 0, flags = 0;
-	size_t name_len;
-
-	if (test_bit(HCI_ADVERTISING, &hdev->dev_flags))
-		flags |= LE_AD_GENERAL;
-
-	if (test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) {
-		if (lmp_le_br_capable(hdev))
-			flags |= LE_AD_SIM_LE_BREDR_CTRL;
-		if (lmp_host_le_br_capable(hdev))
-			flags |= LE_AD_SIM_LE_BREDR_HOST;
-	} else {
-		flags |= LE_AD_NO_BREDR;
-	}
-
-	if (flags) {
-		BT_DBG("adv flags 0x%02x", flags);
-
-		ptr[0] = 2;
-		ptr[1] = EIR_FLAGS;
-		ptr[2] = flags;
-
-		ad_len += 3;
-		ptr += 3;
-	}
-
-	if (hdev->adv_tx_power != HCI_TX_POWER_INVALID) {
-		ptr[0] = 2;
-		ptr[1] = EIR_TX_POWER;
-		ptr[2] = (u8) hdev->adv_tx_power;
-
-		ad_len += 3;
-		ptr += 3;
-	}
-
-	name_len = strlen(hdev->dev_name);
-	if (name_len > 0) {
-		size_t max_len = HCI_MAX_AD_LENGTH - ad_len - 2;
-
-		if (name_len > max_len) {
-			name_len = max_len;
-			ptr[1] = EIR_NAME_SHORT;
-		} else
-			ptr[1] = EIR_NAME_COMPLETE;
-
-		ptr[0] = name_len + 1;
-
-		memcpy(ptr + 2, hdev->dev_name, name_len);
-
-		ad_len += (name_len + 2);
-		ptr += (name_len + 2);
-	}
-
-	return ad_len;
-}
-
-void hci_update_ad(struct hci_request *req)
-{
-	struct hci_dev *hdev = req->hdev;
-	struct hci_cp_le_set_adv_data cp;
-	u8 len;
-
-	if (!lmp_le_capable(hdev))
-		return;
-
-	memset(&cp, 0, sizeof(cp));
-
-	len = create_ad(hdev, cp.data);
-
-	if (hdev->adv_data_len == len &&
-	    memcmp(cp.data, hdev->adv_data, len) == 0)
-		return;
-
-	memcpy(hdev->adv_data, cp.data, sizeof(cp.data));
-	hdev->adv_data_len = len;
-
-	cp.length = len;
-
-	hci_req_add(req, HCI_OP_LE_SET_ADV_DATA, sizeof(cp), &cp);
-}
-
 static int hci_dev_do_open(struct hci_dev *hdev)
 {
 	int ret = 0;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 5391469ff1a5..7b133f0e0c3c 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -939,14 +939,6 @@ static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb)
 			clear_bit(HCI_ADVERTISING, &hdev->dev_flags);
 	}
 
-	if (*sent && !test_bit(HCI_INIT, &hdev->flags)) {
-		struct hci_request req;
-
-		hci_req_init(&req, hdev);
-		hci_update_ad(&req);
-		hci_req_run(&req, NULL);
-	}
-
 	hci_dev_unlock(hdev);
 }
 
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index c071708aac24..285d571eee6b 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -536,6 +536,89 @@ static u8 *create_uuid128_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
 	return ptr;
 }
 
+static u8 create_ad(struct hci_dev *hdev, u8 *ptr)
+{
+	u8 ad_len = 0, flags = 0;
+	size_t name_len;
+
+	if (test_bit(HCI_ADVERTISING, &hdev->dev_flags))
+		flags |= LE_AD_GENERAL;
+
+	if (test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) {
+		if (lmp_le_br_capable(hdev))
+			flags |= LE_AD_SIM_LE_BREDR_CTRL;
+		if (lmp_host_le_br_capable(hdev))
+			flags |= LE_AD_SIM_LE_BREDR_HOST;
+	} else {
+		flags |= LE_AD_NO_BREDR;
+	}
+
+	if (flags) {
+		BT_DBG("adv flags 0x%02x", flags);
+
+		ptr[0] = 2;
+		ptr[1] = EIR_FLAGS;
+		ptr[2] = flags;
+
+		ad_len += 3;
+		ptr += 3;
+	}
+
+	if (hdev->adv_tx_power != HCI_TX_POWER_INVALID) {
+		ptr[0] = 2;
+		ptr[1] = EIR_TX_POWER;
+		ptr[2] = (u8) hdev->adv_tx_power;
+
+		ad_len += 3;
+		ptr += 3;
+	}
+
+	name_len = strlen(hdev->dev_name);
+	if (name_len > 0) {
+		size_t max_len = HCI_MAX_AD_LENGTH - ad_len - 2;
+
+		if (name_len > max_len) {
+			name_len = max_len;
+			ptr[1] = EIR_NAME_SHORT;
+		} else
+			ptr[1] = EIR_NAME_COMPLETE;
+
+		ptr[0] = name_len + 1;
+
+		memcpy(ptr + 2, hdev->dev_name, name_len);
+
+		ad_len += (name_len + 2);
+		ptr += (name_len + 2);
+	}
+
+	return ad_len;
+}
+
+static void update_ad(struct hci_request *req)
+{
+	struct hci_dev *hdev = req->hdev;
+	struct hci_cp_le_set_adv_data cp;
+	u8 len;
+
+	if (!lmp_le_capable(hdev))
+		return;
+
+	memset(&cp, 0, sizeof(cp));
+
+	len = create_ad(hdev, cp.data);
+
+	if (hdev->adv_data_len == len &&
+	    memcmp(cp.data, hdev->adv_data, len) == 0)
+		return;
+
+	memcpy(hdev->adv_data, cp.data, sizeof(cp.data));
+	hdev->adv_data_len = len;
+
+	cp.length = len;
+
+	hci_req_add(req, HCI_OP_LE_SET_ADV_DATA, sizeof(cp), &cp);
+}
+
 static void create_eir(struct hci_dev *hdev, u8 *data)
 {
 	u8 *ptr = data;
@@ -1555,6 +1638,23 @@ static void le_enable_complete(struct hci_dev *hdev, u8 status)
 
 	if (match.sk)
 		sock_put(match.sk);
+
+	/* Make sure the controller has a good default for
+	 * advertising data. Restrict the update to when LE
+	 * has actually been enabled. During power on, the
+	 * update in powered_update_hci will take care of it.
+	 */
+	if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) {
+		struct hci_request req;
+
+		hci_dev_lock(hdev);
+
+		hci_req_init(&req, hdev);
+		update_ad(&req);
+		hci_req_run(&req, NULL);
+
+		hci_dev_unlock(hdev);
+	}
 }
 
 static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
@@ -1622,18 +1722,18 @@ static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 		goto unlock;
 	}
 
+	hci_req_init(&req, hdev);
+
 	memset(&hci_cp, 0, sizeof(hci_cp));
 
 	if (val) {
 		hci_cp.le = val;
 		hci_cp.simul = lmp_le_br_capable(hdev);
+	} else {
+		if (test_bit(HCI_ADVERTISING, &hdev->dev_flags))
+			disable_advertising(&req);
 	}
 
-	hci_req_init(&req, hdev);
-
-	if (test_bit(HCI_ADVERTISING, &hdev->dev_flags) && !val)
-		disable_advertising(&req);
-
 	hci_req_add(&req, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(hci_cp),
 		    &hci_cp);
 
@@ -2772,7 +2872,7 @@ static int set_local_name(struct sock *sk, struct hci_dev *hdev, void *data,
 	}
 
 	if (lmp_le_capable(hdev))
-		hci_update_ad(&req);
+		update_ad(&req);
 
 	err = hci_req_run(&req, set_name_complete);
 	if (err < 0)
@@ -3724,7 +3824,7 @@ static int set_bredr(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 		goto unlock;
 	}
 
-	/* We need to flip the bit already here so that hci_update_ad
+	/* We need to flip the bit already here so that update_ad
 	 * generates the correct flags.
 	 */
 	set_bit(HCI_BREDR_ENABLED, &hdev->dev_flags);
@@ -3734,7 +3834,7 @@ static int set_bredr(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 	if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
 		set_bredr_scan(&req);
 
-	hci_update_ad(&req);
+	update_ad(&req);
 
 	err = hci_req_run(&req, set_bredr_complete);
 	if (err < 0)
@@ -4035,9 +4135,6 @@ static int powered_update_hci(struct hci_dev *hdev)
 		    cp.simul != lmp_host_le_br_capable(hdev))
 			hci_req_add(&req, HCI_OP_WRITE_LE_HOST_SUPPORTED,
 				    sizeof(cp), &cp);
-
-		/* In case BR/EDR was toggled during the AUTO_OFF phase */
-		hci_update_ad(&req);
 	}
 
 	if (lmp_le_capable(hdev)) {
@@ -4046,6 +4143,13 @@ static int powered_update_hci(struct hci_dev *hdev)
 			hci_req_add(&req, HCI_OP_LE_SET_RANDOM_ADDR, 6,
 				    &hdev->static_addr);
 
+		/* Make sure the controller has a good default for
+		 * advertising data. This also applies to the case
+		 * where BR/EDR was toggled during the AUTO_OFF phase.
+		 */
+		if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags))
+			update_ad(&req);
+
 		if (test_bit(HCI_ADVERTISING, &hdev->dev_flags))
 			enable_advertising(&req);
 	}
-- 
cgit 


From 6acd7db41dc2b6bc91b930edf21fbfd8654cbb68 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 06:33:53 -0700
Subject: Bluetooth: Introduce flag for limited discoverable mode

Add a new flag that can be set when in limited discoverable mode. This
flag will cause the limited discoverable bit in the class of device
value to bet set.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci.h | 1 +
 net/bluetooth/mgmt.c        | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index b096f5f73789..f4650a8c1194 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -125,6 +125,7 @@ enum {
 	HCI_ADVERTISING,
 	HCI_CONNECTABLE,
 	HCI_DISCOVERABLE,
+	HCI_LIMITED_DISCOVERABLE,
 	HCI_LINK_SECURITY,
 	HCI_PERIODIC_INQ,
 	HCI_FAST_CONNECTABLE,
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 285d571eee6b..d5eaa28bfd52 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -724,6 +724,9 @@ static void update_class(struct hci_request *req)
 	cod[1] = hdev->major_class;
 	cod[2] = get_service_classes(hdev);
 
+	if (test_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags))
+		cod[1] |= 0x20;
+
 	if (memcmp(cod, hdev->dev_class, 3) == 0)
 		return;
 
-- 
cgit 


From 86a7564573a7de9e01aa9a2e26faa993d8f962ac Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 06:33:54 -0700
Subject: Bluetooth: Make mgmt_discoverable() return void

The return value of mgmt_discoverable() function is not used
and so just change it to return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h |  2 +-
 net/bluetooth/mgmt.c             | 22 ++++++++--------------
 2 files changed, 9 insertions(+), 15 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 4a186ec99132..783c70cf305a 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1100,7 +1100,7 @@ void mgmt_index_added(struct hci_dev *hdev);
 void mgmt_index_removed(struct hci_dev *hdev);
 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
 int mgmt_powered(struct hci_dev *hdev, u8 powered);
-int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
+void mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
 int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
 int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
 int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index d5eaa28bfd52..62c531269927 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4227,30 +4227,24 @@ void mgmt_set_powered_failed(struct hci_dev *hdev, int err)
 	mgmt_pending_remove(cmd);
 }
 
-int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable)
+void mgmt_discoverable(struct hci_dev *hdev, u8 discoverable)
 {
-	bool changed = false;
-	int err = 0;
+	bool changed;
 
 	/* Nothing needed here if there's a pending command since that
 	 * commands request completion callback takes care of everything
 	 * necessary.
 	 */
 	if (mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev))
-		return 0;
+		return;
 
-	if (discoverable) {
-		if (!test_and_set_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
-			changed = true;
-	} else {
-		if (test_and_clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
-			changed = true;
-	}
+	if (discoverable)
+		changed = !test_and_set_bit(HCI_DISCOVERABLE, &hdev->dev_flags);
+	else
+		changed = test_and_clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags);
 
 	if (changed)
-		err = new_settings(hdev, NULL);
-
-	return err;
+		new_settings(hdev, NULL);
 }
 
 int mgmt_connectable(struct hci_dev *hdev, u8 connectable)
-- 
cgit 


From a330916c4f29898b93708b6bec8f59f7a7956f41 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 06:33:55 -0700
Subject: Bluetooth: Make mgmt_connectable() return void

The return value of mgmt_connectable() function is not used
and so just change it to return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h |  2 +-
 net/bluetooth/mgmt.c             | 22 ++++++++--------------
 2 files changed, 9 insertions(+), 15 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 783c70cf305a..997d43d1996e 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1101,7 +1101,7 @@ void mgmt_index_removed(struct hci_dev *hdev);
 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
 int mgmt_powered(struct hci_dev *hdev, u8 powered);
 void mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
-int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
+void mgmt_connectable(struct hci_dev *hdev, u8 connectable);
 int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
 int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
 		      bool persistent);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 62c531269927..9ffca590566a 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4247,30 +4247,24 @@ void mgmt_discoverable(struct hci_dev *hdev, u8 discoverable)
 		new_settings(hdev, NULL);
 }
 
-int mgmt_connectable(struct hci_dev *hdev, u8 connectable)
+void mgmt_connectable(struct hci_dev *hdev, u8 connectable)
 {
-	bool changed = false;
-	int err = 0;
+	bool changed;
 
 	/* Nothing needed here if there's a pending command since that
 	 * commands request completion callback takes care of everything
 	 * necessary.
 	 */
 	if (mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev))
-		return 0;
+		return;
 
-	if (connectable) {
-		if (!test_and_set_bit(HCI_CONNECTABLE, &hdev->dev_flags))
-			changed = true;
-	} else {
-		if (test_and_clear_bit(HCI_CONNECTABLE, &hdev->dev_flags))
-			changed = true;
-	}
+	if (connectable)
+		changed = !test_and_set_bit(HCI_CONNECTABLE, &hdev->dev_flags);
+	else
+		changed = test_and_clear_bit(HCI_CONNECTABLE, &hdev->dev_flags);
 
 	if (changed)
-		err = new_settings(hdev, NULL);
-
-	return err;
+		new_settings(hdev, NULL);
 }
 
 int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status)
-- 
cgit 


From 4796e8af60ee7d2922386ef9fd4389d21e2c1665 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 06:33:56 -0700
Subject: Bluetooth: Make mgmt_write_scan_failed() return void

The return value of mgmt_write_scan_failed() function is not used
and so just change it to return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h | 2 +-
 net/bluetooth/mgmt.c             | 4 +---
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 997d43d1996e..da21a8d2b4a1 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1102,7 +1102,7 @@ void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
 int mgmt_powered(struct hci_dev *hdev, u8 powered);
 void mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
 void mgmt_connectable(struct hci_dev *hdev, u8 connectable);
-int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
+void mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
 int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
 		      bool persistent);
 void mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 9ffca590566a..12d1cb02c2a1 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4267,7 +4267,7 @@ void mgmt_connectable(struct hci_dev *hdev, u8 connectable)
 		new_settings(hdev, NULL);
 }
 
-int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status)
+void mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status)
 {
 	u8 mgmt_err = mgmt_status(status);
 
@@ -4278,8 +4278,6 @@ int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status)
 	if (scan & SCAN_INQUIRY)
 		mgmt_pending_foreach(MGMT_OP_SET_DISCOVERABLE, hdev,
 				     cmd_status_rsp, &mgmt_err);
-
-	return 0;
 }
 
 int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
-- 
cgit 


From 970ba5242d86ea281a263231639e935f6386e49d Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 06:33:57 -0700
Subject: Bluetooth: Update class of device after changing discoverable mode

When the discoverable mode gets changed, ensure that the class of
device value has the correct limited discoverable bit value set.

Since the class of device HCI command will only be send to the
controller when the value changes, it is safe to just always
trigger the update.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 12d1cb02c2a1..6db23934ac9e 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1025,6 +1025,7 @@ static void set_discoverable_complete(struct hci_dev *hdev, u8 status)
 {
 	struct pending_cmd *cmd;
 	struct mgmt_mode *cp;
+	struct hci_request req;
 	bool changed;
 
 	BT_DBG("status 0x%02x", status);
@@ -1054,6 +1055,14 @@ static void set_discoverable_complete(struct hci_dev *hdev, u8 status)
 	if (changed)
 		new_settings(hdev, cmd->sk);
 
+	/* When the discoverable mode gets changed, make sure
+	 * that class of device has the limited discoverable
+	 * bit correctly set.
+	 */
+	hci_req_init(&req, hdev);
+	update_class(&req);
+	hci_req_run(&req, NULL);
+
 remove_cmd:
 	mgmt_pending_remove(cmd);
 
-- 
cgit 


From d4462a07de025dec0f5242743f4d687a39b78bd5 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 08:11:02 -0700
Subject: Bluetooth: Move arming of discoverable timeout to complete handler

The discoverable timeout is currently armed from hci_event.c and causes
some side effects when using HCI commands instead of the management
interface. To make this clear, only arm the discoverable timeout from
the management command complete handler.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_event.c |  5 -----
 net/bluetooth/mgmt.c      | 11 +++++++++--
 2 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 7b133f0e0c3c..071c0df118d5 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -310,11 +310,6 @@ static void hci_cc_write_scan_enable(struct hci_dev *hdev, struct sk_buff *skb)
 		set_bit(HCI_ISCAN, &hdev->flags);
 		if (!old_iscan)
 			mgmt_discoverable(hdev, 1);
-		if (hdev->discov_timeout > 0) {
-			int to = msecs_to_jiffies(hdev->discov_timeout * 1000);
-			queue_delayed_work(hdev->workqueue, &hdev->discov_off,
-					   to);
-		}
 	} else if (old_iscan)
 		mgmt_discoverable(hdev, 0);
 
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 6db23934ac9e..686bda76fcad 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1043,12 +1043,19 @@ static void set_discoverable_complete(struct hci_dev *hdev, u8 status)
 	}
 
 	cp = cmd->param;
-	if (cp->val)
+	if (cp->val) {
 		changed = !test_and_set_bit(HCI_DISCOVERABLE,
 					    &hdev->dev_flags);
-	else
+
+		if (hdev->discov_timeout > 0) {
+			int to = msecs_to_jiffies(hdev->discov_timeout * 1000);
+			queue_delayed_work(hdev->workqueue, &hdev->discov_off,
+					   to);
+		}
+	} else {
 		changed = test_and_clear_bit(HCI_DISCOVERABLE,
 					     &hdev->dev_flags);
+	}
 
 	send_settings_rsp(cmd->sk, MGMT_OP_SET_DISCOVERABLE, hdev);
 
-- 
cgit 


From 0a9375d129d4367883a9914c04cecbd31df1361a Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Mon, 5 Aug 2013 16:10:02 -0700
Subject: ARM: tegra: add GPIO controller to tegra124.dtsi

The Tegra124 GPIO controller is identical to Tegra30, so copy the
DT node from tegra30.dtsi to tegra124.dtsi.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
---
 arch/arm/boot/dts/tegra124.dtsi | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm/boot/dts/tegra124.dtsi b/arch/arm/boot/dts/tegra124.dtsi
index f8242488de53..b7413004ee77 100644
--- a/arch/arm/boot/dts/tegra124.dtsi
+++ b/arch/arm/boot/dts/tegra124.dtsi
@@ -1,3 +1,4 @@
+#include <dt-bindings/gpio/tegra-gpio.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 
 #include "skeleton.dtsi"
@@ -29,6 +30,23 @@
 			     <GIC_SPI 122 IRQ_TYPE_LEVEL_HIGH>;
 	};
 
+	gpio: gpio@6000d000 {
+		compatible = "nvidia,tegra124-gpio", "nvidia,tegra30-gpio";
+		reg = <0x6000d000 0x1000>;
+		interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>,
+			     <GIC_SPI 125 IRQ_TYPE_LEVEL_HIGH>;
+		#gpio-cells = <2>;
+		gpio-controller;
+		#interrupt-cells = <2>;
+		interrupt-controller;
+	};
+
 	/*
 	 * There are two serial driver i.e. 8250 based simple serial
 	 * driver and APB DMA based serial driver for higher baudrate
-- 
cgit 


From 17cba02f9a1bd4c1a904352b52e060230fb454be Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Tue, 15 Oct 2013 20:07:00 +0530
Subject: Staging: btmtk_usb: Fix Sparse Warning of incorrect casting

This patch fixes the following Sparse Warnings in btmtk_usb.c:

drivers/staging/btmtk_usb/btmtk_usb.c:110:16: warning: cast to restricted __le32
drivers/staging/btmtk_usb/btmtk_usb.c:299:23: warning: cast to restricted __le16

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/btmtk_usb/btmtk_usb.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/btmtk_usb/btmtk_usb.c b/drivers/staging/btmtk_usb/btmtk_usb.c
index 1b0f993b350c..cb315b5315ac 100644
--- a/drivers/staging/btmtk_usb/btmtk_usb.c
+++ b/drivers/staging/btmtk_usb/btmtk_usb.c
@@ -93,6 +93,7 @@ static int btmtk_usb_io_read32(struct btmtk_usb_data *data, u32 reg, u32 *val)
 	u8 request = data->r_request;
 	struct usb_device *udev = data->udev;
 	int ret;
+	__le32 val_le;
 
 	ret = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0), request,
 			DEVICE_VENDOR_REQUEST_IN, 0x0, reg, data->io_buf,
@@ -105,9 +106,9 @@ static int btmtk_usb_io_read32(struct btmtk_usb_data *data, u32 reg, u32 *val)
 		return ret;
 	}
 
-	memmove(val, data->io_buf, 4);
+	memmove(&val_le, data->io_buf, 4);
 
-	*val = le32_to_cpu(*val);
+	*val = le32_to_cpu(val_le);
 
 	if (ret > 0)
 		ret = 0;
@@ -280,6 +281,7 @@ static u16 btmtk_usb_get_crc(struct btmtk_usb_data *data)
 	int ret = 0;
 	struct usb_device *udev = data->udev;
 	u16 crc, count = 0;
+	__le16 crc_le;
 
 	BT_DBG("%s\n", __func__);
 
@@ -294,9 +296,9 @@ static u16 btmtk_usb_get_crc(struct btmtk_usb_data *data)
 			BT_ERR("%s error(%d)\n", __func__, ret);
 		}
 
-		memmove(&crc, data->io_buf, 2);
+		memmove(&crc_le, data->io_buf, 2);
 
-		crc = le16_to_cpu(crc);
+		crc = le16_to_cpu(crc_le);
 
 		if (crc != 0xFFFF)
 			break;
-- 
cgit 


From 36261547c9699c6bc746b1db9508aaeb68faa7c9 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 08:28:51 -0700
Subject: Bluetooth: Simplify the code for re-arming discoverable timeout

When only the discoverable timeout gets updated, just cancel the current
timeout, store the new timeout value. If the new timeout is valid, then
arm the discoverable timeout again.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 686bda76fcad..1d608ca0b0ee 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1143,15 +1143,13 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 	}
 
 	if (!!cp->val == test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) {
-		if (hdev->discov_timeout > 0) {
-			cancel_delayed_work(&hdev->discov_off);
-			hdev->discov_timeout = 0;
-		}
+		cancel_delayed_work(&hdev->discov_off);
+		hdev->discov_timeout = timeout;
 
-		if (cp->val && timeout > 0) {
-			hdev->discov_timeout = timeout;
+		if (cp->val && hdev->discov_timeout > 0) {
+			int to = msecs_to_jiffies(hdev->discov_timeout * 1000);
 			queue_delayed_work(hdev->workqueue, &hdev->discov_off,
-				msecs_to_jiffies(hdev->discov_timeout * 1000));
+					   to);
 		}
 
 		err = send_settings_rsp(sk, MGMT_OP_SET_DISCOVERABLE, hdev);
-- 
cgit 


From 3d5053127fc51b11f10a2cc3ad638736f2fa814c Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 08:34:15 -0700
Subject: Bluetooth: Add HCI command structure for writing current IAC LAP

This patch just adds the HCI command structure for configuring the
current IAC LAP setting. The length of the command is variable and
supports more than two IAC. However since there is only general
discoverable and limited discoverable modes, this can be limited
to two possible IACs.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index f4650a8c1194..8b8c3e2ddb06 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -824,6 +824,12 @@ struct hci_rp_read_num_supported_iac {
 
 #define HCI_OP_READ_CURRENT_IAC_LAP	0x0c39
 
+#define HCI_OP_WRITE_CURRENT_IAC_LAP	0x0c3a
+struct hci_cp_write_current_iac_lap {
+	__u8	num_iac;
+	__u8	iac_lap[6];
+} __packed;
+
 #define HCI_OP_WRITE_INQUIRY_MODE	0x0c45
 
 #define HCI_MAX_EIR_LENGTH		240
-- 
cgit 


From f222c70ccf67f4569908e5f087b8dfc956696174 Mon Sep 17 00:00:00 2001
From: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Date: Tue, 15 Oct 2013 18:14:30 +0530
Subject: Staging: rtl8192e: Replacing (u8*) with (u8 *)

Fix checkpatch error: ERROR: "(foo*)" should be "(foo *)"

Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192e/dot11d.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8192e/dot11d.c b/drivers/staging/rtl8192e/dot11d.c
index f7b14f8b7b83..1260f10944ef 100644
--- a/drivers/staging/rtl8192e/dot11d.c
+++ b/drivers/staging/rtl8192e/dot11d.c
@@ -151,7 +151,7 @@ void Dot11d_UpdateCountryIe(struct rtllib_device *dev, u8 *pTaddr,
 			MaxChnlNum = pTriple->FirstChnl + j;
 		}
 
-		pTriple = (struct chnl_txpow_triple *)((u8*)pTriple + 3);
+		pTriple = (struct chnl_txpow_triple *)((u8 *)pTriple + 3);
 	}
 
 	UPDATE_CIE_SRC(dev, pTaddr);
-- 
cgit 


From 8d100b27fb3f660f3a3355ad71ee9f1cb8e10b45 Mon Sep 17 00:00:00 2001
From: Antti Palosaari <crope@iki.fi>
Date: Fri, 4 Oct 2013 14:40:06 -0300
Subject: [media] em28xx: MaxMedia UB425-TC offer firmware for demodulator

Downloading new firmware for DRX-K demodulator is not obligatory but
usually it offers important bug fixes compared to default firmware
burned into chip rom. DRX-K demod driver will continue even without
the firmware, but in that case it will print warning to system log
to tip user he should install firmware.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/em28xx/em28xx-dvb.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c
index bb1e8dca80cd..f8a22122aa47 100644
--- a/drivers/media/usb/em28xx/em28xx-dvb.c
+++ b/drivers/media/usb/em28xx/em28xx-dvb.c
@@ -384,6 +384,8 @@ static struct drxk_config maxmedia_ub425_tc_drxk = {
 	.adr = 0x29,
 	.single_master = 1,
 	.no_i2c_bridge = 1,
+	.microcode_name = "dvb-demod-drxk-01.fw",
+	.chunk_size = 62,
 	.load_firmware_sync = true,
 };
 
@@ -1234,11 +1236,6 @@ static int em28xx_dvb_init(struct em28xx *dev)
 				goto out_free;
 			}
 		}
-
-		/* TODO: we need drx-3913k firmware in order to support DVB-T */
-		em28xx_info("MaxMedia UB425-TC/Delock 61959: only DVB-C " \
-				"supported by that driver version\n");
-
 		break;
 	case EM2884_BOARD_PCTV_510E:
 	case EM2884_BOARD_PCTV_520E:
-- 
cgit 


From b6c7abb1c3c8e4534e0a1a29aea4060feeee3bba Mon Sep 17 00:00:00 2001
From: Antti Palosaari <crope@iki.fi>
Date: Fri, 4 Oct 2013 15:17:51 -0300
Subject: [media] em28xx: MaxMedia UB425-TC switch RF tuner driver to another

tda18271c2dd => tda18271
tda18271 is more complete than tda18271c2dd.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/em28xx/em28xx-dvb.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c
index f8a22122aa47..0697aad07d22 100644
--- a/drivers/media/usb/em28xx/em28xx-dvb.c
+++ b/drivers/media/usb/em28xx/em28xx-dvb.c
@@ -1229,8 +1229,9 @@ static int em28xx_dvb_init(struct em28xx *dev)
 			dvb->fe[0]->ops.i2c_gate_ctrl = NULL;
 
 			/* attach tuner */
-			if (!dvb_attach(tda18271c2dd_attach, dvb->fe[0],
-					&dev->i2c_adap[dev->def_i2c_bus], 0x60)) {
+			if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
+					&dev->i2c_adap[dev->def_i2c_bus],
+					&em28xx_cxd2820r_tda18271_config)) {
 				dvb_frontend_detach(dvb->fe[0]);
 				result = -EINVAL;
 				goto out_free;
-- 
cgit 


From de0fc463268eed44ba68ebdddbc472e4f2ccd29e Mon Sep 17 00:00:00 2001
From: Antti Palosaari <crope@iki.fi>
Date: Fri, 4 Oct 2013 15:25:55 -0300
Subject: [media] em28xx: MaxMedia UB425-TC change demod settings

That version of DRX-K chip supports only 2.
drxk: SCU_RESULT_INVPAR while sending cmd 0x0203 with params:
drxk: Warning -22 on qam_demodulator_command

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/em28xx/em28xx-dvb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c
index 0697aad07d22..2324ac662ed3 100644
--- a/drivers/media/usb/em28xx/em28xx-dvb.c
+++ b/drivers/media/usb/em28xx/em28xx-dvb.c
@@ -387,6 +387,7 @@ static struct drxk_config maxmedia_ub425_tc_drxk = {
 	.microcode_name = "dvb-demod-drxk-01.fw",
 	.chunk_size = 62,
 	.load_firmware_sync = true,
+	.qam_demod_parameter_count = 2,
 };
 
 static struct drxk_config pctv_520e_drxk = {
-- 
cgit 


From 15807765d81dd71ab4e43517257e5e0ddcc2bc3b Mon Sep 17 00:00:00 2001
From: Vladik Aranov <earnol@mail.ru>
Date: Fri, 20 Sep 2013 21:09:44 -0300
Subject: [media] gscpa_ov534_9: Add support for ov3610 sensor

Dear Hans de Goede, I have Ubuntu (raring) and recently bought digital
microscope eyepiece Lomo MD300. It is the same device as Future Optics MVV3000.
Unfortunately it does not work out of box. Moreover drivers refused to work
under Windows 7 as well leaving me only with Win Xp working system. I have had
no choice but to examine what happened in USB bus and attempt to reproduce the
sequence. So, i have download the source(3.8.0-30 kernel) and made required
changes to driver to make my hardware work.
I submit my changed files to you as maintainer of the driver so you can
integrade my changes into main stream. Thanx. Hopefully my Ubuntu will work
with my hardware out of box.
Sincerely yours Vladik Aranov

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/gspca/ov534_9.c | 334 +++++++++++++++++++++++++++++++++++++-
 1 file changed, 333 insertions(+), 1 deletion(-)

diff --git a/drivers/media/usb/gspca/ov534_9.c b/drivers/media/usb/gspca/ov534_9.c
index c4cd028fe0b4..47085cf2d723 100644
--- a/drivers/media/usb/gspca/ov534_9.c
+++ b/drivers/media/usb/gspca/ov534_9.c
@@ -59,6 +59,7 @@ enum sensors {
 	SENSOR_OV965x,		/* ov9657 */
 	SENSOR_OV971x,		/* ov9712 */
 	SENSOR_OV562x,		/* ov5621 */
+	SENSOR_OV361x,		/* ov3610 */
 	NSENSORS
 };
 
@@ -106,6 +107,274 @@ static const struct v4l2_pix_format ov562x_mode[] = {
 	}
 };
 
+enum ov361x {
+	ov361x_2048 = 0,
+	ov361x_1600,
+	ov361x_1024,
+	ov361x_640,
+	ov361x_320,
+	ov361x_160,
+	ov361x_last
+};
+
+static const struct v4l2_pix_format ov361x_mode[] = {
+	{0x800, 0x600, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
+		.bytesperline = 0x800,
+		.sizeimage = 0x800 * 0x600,
+		.colorspace = V4L2_COLORSPACE_SRGB},
+	{1600, 1200, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
+		.bytesperline = 1600,
+		.sizeimage = 1600 * 1200,
+		.colorspace = V4L2_COLORSPACE_SRGB},
+	{1024, 768, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
+		.bytesperline = 768,
+		.sizeimage = 1024 * 768,
+		.colorspace = V4L2_COLORSPACE_SRGB},
+	{640, 480, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
+		.bytesperline = 640,
+		.sizeimage = 640 * 480,
+		.colorspace = V4L2_COLORSPACE_SRGB},
+	{320, 240, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
+		.bytesperline = 320,
+		.sizeimage = 320 * 240,
+		.colorspace = V4L2_COLORSPACE_SRGB},
+	{160, 120, V4L2_PIX_FMT_SBGGR8, V4L2_FIELD_NONE,
+		.bytesperline = 160,
+		.sizeimage = 160 * 120,
+		.colorspace = V4L2_COLORSPACE_SRGB}
+};
+
+static const u8 ov361x_start_2048[][2] = {
+	{0x12, 0x80},
+	{0x13, 0xcf},
+	{0x14, 0x40},
+	{0x15, 0x00},
+	{0x01, 0x80},
+	{0x02, 0x80},
+	{0x04, 0x70},
+	{0x0d, 0x40},
+	{0x0f, 0x47},
+	{0x11, 0x81},
+	{0x32, 0x36},
+	{0x33, 0x0c},
+	{0x34, 0x00},
+	{0x35, 0x90},
+	{0x12, 0x00},
+	{0x17, 0x10},
+	{0x18, 0x90},
+	{0x19, 0x00},
+	{0x1a, 0xc0},
+};
+static const u8 ov361x_bridge_start_2048[][2] = {
+	{0xf1, 0x60},
+	{0x88, 0x00},
+	{0x89, 0x08},
+	{0x8a, 0x00},
+	{0x8b, 0x06},
+	{0x8c, 0x01},
+	{0x8d, 0x10},
+	{0x1c, 0x00},
+	{0x1d, 0x48},
+	{0x1d, 0x00},
+	{0x1d, 0xff},
+	{0x1c, 0x0a},
+	{0x1d, 0x2e},
+	{0x1d, 0x1e},
+};
+
+static const u8 ov361x_start_1600[][2] = {
+	{0x12, 0x80},
+	{0x13, 0xcf},
+	{0x14, 0x40},
+	{0x15, 0x00},
+	{0x01, 0x80},
+	{0x02, 0x80},
+	{0x04, 0x70},
+	{0x0d, 0x40},
+	{0x0f, 0x47},
+	{0x11, 0x81},
+	{0x32, 0x36},
+	{0x33, 0x0C},
+	{0x34, 0x00},
+	{0x35, 0x90},
+	{0x12, 0x00},
+	{0x17, 0x10},
+	{0x18, 0x90},
+	{0x19, 0x00},
+	{0x1a, 0xc0},
+};
+static const u8 ov361x_bridge_start_1600[][2] = {
+	{0xf1, 0x60},  /* Hsize[7:0] */
+	{0x88, 0x00},  /* Hsize[15:8] Write Only, can't read */
+	{0x89, 0x08},  /* Vsize[7:0] */
+	{0x8a, 0x00},  /* Vsize[15:8] Write Only, can't read */
+	{0x8b, 0x06},  /* for Iso */
+	{0x8c, 0x01},  /* RAW input */
+	{0x8d, 0x10},
+	{0x1c, 0x00},  /* RAW output, Iso transfer */
+	{0x1d, 0x48},
+	{0x1d, 0x00},
+	{0x1d, 0xff},
+	{0x1c, 0x0a},  /* turn off JPEG, Iso mode */
+	{0x1d, 0x2e},  /* for Iso */
+	{0x1d, 0x1e},
+};
+
+static const u8 ov361x_start_1024[][2] = {
+	{0x12, 0x80},
+	{0x13, 0xcf},
+	{0x14, 0x40},
+	{0x15, 0x00},
+	{0x01, 0x80},
+	{0x02, 0x80},
+	{0x04, 0x70},
+	{0x0d, 0x40},
+	{0x0f, 0x47},
+	{0x11, 0x81},
+	{0x32, 0x36},
+	{0x33, 0x0C},
+	{0x34, 0x00},
+	{0x35, 0x90},
+	{0x12, 0x40},
+	{0x17, 0x1f},
+	{0x18, 0x5f},
+	{0x19, 0x00},
+	{0x1a, 0x68},
+};
+static const u8 ov361x_bridge_start_1024[][2] = {
+	{0xf1, 0x60},  /* Hsize[7:0] */
+	{0x88, 0x00},  /* Hsize[15:8] Write Only, can't read */
+	{0x89, 0x04},  /* Vsize[7:0] */
+	{0x8a, 0x00},  /* Vsize[15:8] Write Only, can't read */
+	{0x8b, 0x03},  /* for Iso */
+	{0x8c, 0x01},  /* RAW input  */
+	{0x8d, 0x10},
+	{0x1c, 0x00},  /* RAW output, Iso transfer */
+	{0x1d, 0x48},
+	{0x1d, 0x00},
+	{0x1d, 0xff},
+	{0x1c, 0x0a},  /* turn off JPEG, Iso mode */
+	{0x1d, 0x2e},  /* for Iso */
+	{0x1d, 0x1e},
+};
+
+static const u8 ov361x_start_640[][2] = {
+	{0x12, 0x80},
+	{0x13, 0xcf},
+	{0x14, 0x40},
+	{0x15, 0x00},
+	{0x01, 0x80},
+	{0x02, 0x80},
+	{0x04, 0x70},
+	{0x0d, 0x40},
+	{0x0f, 0x47},
+	{0x11, 0x81},
+	{0x32, 0x36},
+	{0x33, 0x0C},
+	{0x34, 0x00},
+	{0x35, 0x90},
+	{0x12, 0x40},
+	{0x17, 0x1f},
+	{0x18, 0x5f},
+	{0x19, 0x00},
+	{0x1a, 0x68},
+};
+
+static const u8 ov361x_bridge_start_640[][2] = {
+	{0xf1, 0x60},  /* Hsize[7:0]*/
+	{0x88, 0x00},  /* Hsize[15:8] Write Only, can't read */
+	{0x89, 0x04},  /* Vsize[7:0] */
+	{0x8a, 0x00},  /* Vsize[15:8] Write Only, can't read */
+	{0x8b, 0x03},  /* for Iso */
+	{0x8c, 0x01},  /* RAW input */
+	{0x8d, 0x10},
+	{0x1c, 0x00},  /* RAW output, Iso transfer */
+	{0x1d, 0x48},
+	{0x1d, 0x00},
+	{0x1d, 0xff},
+	{0x1c, 0x0a},  /* turn off JPEG, Iso mode */
+	{0x1d, 0x2e},  /* for Iso */
+	{0x1d, 0x1e},
+};
+
+static const u8 ov361x_start_320[][2] = {
+	{0x12, 0x80},
+	{0x13, 0xcf},
+	{0x14, 0x40},
+	{0x15, 0x00},
+	{0x01, 0x80},
+	{0x02, 0x80},
+	{0x04, 0x70},
+	{0x0d, 0x40},
+	{0x0f, 0x47},
+	{0x11, 0x81},
+	{0x32, 0x36},
+	{0x33, 0x0C},
+	{0x34, 0x00},
+	{0x35, 0x90},
+	{0x12, 0x40},
+	{0x17, 0x1f},
+	{0x18, 0x5f},
+	{0x19, 0x00},
+	{0x1a, 0x68},
+};
+
+static const u8 ov361x_bridge_start_320[][2] = {
+	{0xf1, 0x60},  /* Hsize[7:0] */
+	{0x88, 0x00},  /* Hsize[15:8] Write Only, can't read */
+	{0x89, 0x04},  /* Vsize[7:0] */
+	{0x8a, 0x00},  /* Vsize[15:8] Write Only, can't read */
+	{0x8b, 0x03},  /* for Iso */
+	{0x8c, 0x01},  /* RAW input */
+	{0x8d, 0x10},
+	{0x1c, 0x00},  /* RAW output, Iso transfer; */
+	{0x1d, 0x48},
+	{0x1d, 0x00},
+	{0x1d, 0xff},
+	{0x1c, 0x0a},  /* turn off JPEG, Iso mode */
+	{0x1d, 0x2e},  /* for Iso */
+	{0x1d, 0x1e},
+};
+
+static const u8 ov361x_start_160[][2] = {
+	{0x12, 0x80},
+	{0x13, 0xcf},
+	{0x14, 0x40},
+	{0x15, 0x00},
+	{0x01, 0x80},
+	{0x02, 0x80},
+	{0x04, 0x70},
+	{0x0d, 0x40},
+	{0x0f, 0x47},
+	{0x11, 0x81},
+	{0x32, 0x36},
+	{0x33, 0x0C},
+	{0x34, 0x00},
+	{0x35, 0x90},
+	{0x12, 0x40},
+	{0x17, 0x1f},
+	{0x18, 0x5f},
+	{0x19, 0x00},
+	{0x1a, 0x68},
+};
+
+static const u8 ov361x_bridge_start_160[][2] = {
+	{0xf1, 0x60},  /* Hsize[7:0] */
+	{0x88, 0x00},  /* Hsize[15:8] Write Only, can't read */
+	{0x89, 0x04},  /* Vsize[7:0] */
+	{0x8a, 0x00},  /* Vsize[15:8] Write Only, can't read */
+	{0x8b, 0x03},  /* for Iso */
+	{0x8c, 0x01},  /* RAW input */
+	{0x8d, 0x10},
+	{0x1c, 0x00},  /* RAW output, Iso transfer */
+	{0x1d, 0x48},
+	{0x1d, 0x00},
+	{0x1d, 0xff},
+	{0x1c, 0x0a},  /* turn off JPEG, Iso mode */
+	{0x1d, 0x2e},  /* for Iso */
+	{0x1d, 0x1e},
+};
+
 static const u8 bridge_init[][2] = {
 	{0x88, 0xf8},
 	{0x89, 0xff},
@@ -898,7 +1167,7 @@ static int sccb_check_status(struct gspca_dev *gspca_dev)
 	int i;
 
 	for (i = 0; i < 5; i++) {
-		msleep(10);
+		msleep(20);
 		data = reg_r(gspca_dev, OV534_REG_STATUS);
 
 		switch (data) {
@@ -1221,6 +1490,13 @@ static int sd_init(struct gspca_dev *gspca_dev)
 		sccb_w_array(gspca_dev, ov562x_init_2,
 				ARRAY_SIZE(ov562x_init_2));
 		reg_w(gspca_dev, 0xe0, 0x00);
+	} else if ((sensor_id & 0xfff0) == 0x3610) {
+		sd->sensor = SENSOR_OV361x;
+		gspca_dev->cam.cam_mode = ov361x_mode;
+		gspca_dev->cam.nmodes = ARRAY_SIZE(ov361x_mode);
+		reg_w(gspca_dev, 0xe7, 0x3a);
+		reg_w(gspca_dev, 0xf1, 0x60);
+		sccb_write(gspca_dev, 0x12, 0x80);
 	} else {
 		pr_err("Unknown sensor %04x", sensor_id);
 		return -EINVAL;
@@ -1229,6 +1505,53 @@ static int sd_init(struct gspca_dev *gspca_dev)
 	return gspca_dev->usb_err;
 }
 
+static int sd_start_ov361x(struct gspca_dev *gspca_dev)
+{
+	sccb_write(gspca_dev, 0x12, 0x80);
+	msleep(20);
+	switch (gspca_dev->curr_mode % (ov361x_last)) {
+	case ov361x_2048:
+		reg_w_array(gspca_dev, ov361x_bridge_start_2048,
+			    ARRAY_SIZE(ov361x_bridge_start_2048));
+		sccb_w_array(gspca_dev, ov361x_start_2048,
+			     ARRAY_SIZE(ov361x_start_2048));
+		break;
+	case ov361x_1600:
+		reg_w_array(gspca_dev, ov361x_bridge_start_1600,
+			    ARRAY_SIZE(ov361x_bridge_start_1600));
+		sccb_w_array(gspca_dev, ov361x_start_1600,
+			     ARRAY_SIZE(ov361x_start_1600));
+		break;
+	case ov361x_1024:
+		reg_w_array(gspca_dev, ov361x_bridge_start_1024,
+			    ARRAY_SIZE(ov361x_bridge_start_1024));
+		sccb_w_array(gspca_dev, ov361x_start_1024,
+			     ARRAY_SIZE(ov361x_start_1024));
+		break;
+	case ov361x_640:
+		reg_w_array(gspca_dev, ov361x_bridge_start_640,
+			    ARRAY_SIZE(ov361x_bridge_start_640));
+		sccb_w_array(gspca_dev, ov361x_start_640,
+			     ARRAY_SIZE(ov361x_start_640));
+		break;
+	case ov361x_320:
+		reg_w_array(gspca_dev, ov361x_bridge_start_320,
+			    ARRAY_SIZE(ov361x_bridge_start_320));
+		sccb_w_array(gspca_dev, ov361x_start_320,
+			     ARRAY_SIZE(ov361x_start_320));
+		break;
+	case ov361x_160:
+		reg_w_array(gspca_dev, ov361x_bridge_start_160,
+			    ARRAY_SIZE(ov361x_bridge_start_160));
+		sccb_w_array(gspca_dev, ov361x_start_160,
+			     ARRAY_SIZE(ov361x_start_160));
+		break;
+	}
+	reg_w(gspca_dev, 0xe0, 0x00); /* start transfer */
+
+	return gspca_dev->usb_err;
+}
+
 static int sd_start(struct gspca_dev *gspca_dev)
 {
 	struct sd *sd = (struct sd *) gspca_dev;
@@ -1237,6 +1560,8 @@ static int sd_start(struct gspca_dev *gspca_dev)
 		return gspca_dev->usb_err;
 	if (sd->sensor == SENSOR_OV562x)
 		return gspca_dev->usb_err;
+	if (sd->sensor == SENSOR_OV361x)
+		return sd_start_ov361x(gspca_dev);
 
 	switch (gspca_dev->curr_mode) {
 	case QVGA_MODE:			/* 320x240 */
@@ -1290,6 +1615,11 @@ static int sd_start(struct gspca_dev *gspca_dev)
 
 static void sd_stopN(struct gspca_dev *gspca_dev)
 {
+	if (((struct sd *)gspca_dev)->sensor == SENSOR_OV361x) {
+		reg_w(gspca_dev, 0xe0, 0x01); /* stop transfer */
+		/* reg_w(gspca_dev, 0x31, 0x09); */
+		return;
+	}
 	reg_w(gspca_dev, 0xe0, 0x01);
 	set_led(gspca_dev, 0);
 	reg_w(gspca_dev, 0xe0, 0x00);
@@ -1425,6 +1755,8 @@ static int sd_init_controls(struct gspca_dev *gspca_dev)
 
 	if (sd->sensor == SENSOR_OV971x)
 		return 0;
+	if (sd->sensor == SENSOR_OV361x)
+		return 0;
 	gspca_dev->vdev.ctrl_handler = hdl;
 	v4l2_ctrl_handler_init(hdl, 7);
 	if (sd->sensor == SENSOR_OV562x) {
-- 
cgit 


From 89a03d3662916e1541f8c2a956c283b24ab82a67 Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Mon, 14 Oct 2013 14:21:30 -0700
Subject: staging: ft1000: change ft1000-download.c header to /* */ comment
 style

Coding style requires that comments use the standard /* */ style
instead of C99 style.
Also removed author comment from a previous contributor

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_download.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index f80dc433e6d5..46c746236724 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -1,12 +1,8 @@
-//=====================================================
-// CopyRight (C) 2007 Qualcomm Inc. All Rights Reserved.
-//
-//
-// This file is part of Express Card USB Driver
-//
-// $Id:
-//====================================================
-// 20090926; aelias; removed compiler warnings; ubuntu 9.04; 2.6.28-15-generic
+/*
+* CopyRight (C) 2007 Qualcomm Inc. All Rights Reserved.
+*
+* This file is part of Express Card USB Driver
+*/
 
 #include <linux/init.h>
 #include <linux/kernel.h>
-- 
cgit 


From fafa4dcef4b5438427d194926e804b13e441fc92 Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Mon, 14 Oct 2013 14:40:01 -0700
Subject: staging: ft1000: convert formal put_handshake() header to single line
 comment

As per coding style,C99 comments are not allowed
also, the formal header contained empty space and
redundant information that's right there in the function

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_download.c | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index 46c746236724..911acfda27c3 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -201,20 +201,7 @@ static u16 get_handshake(struct ft1000_usb *ft1000dev, u16 expected_value)
 	return HANDSHAKE_TIMEOUT_VALUE;
 }
 
-//---------------------------------------------------------------------------
-// Function:    put_handshake
-//
-// Parameters:  struct ft1000_usb  - device structure
-//              u16 handshake_value - handshake to be written
-//
-// Returns:     none
-//
-// Description: This function write the handshake value to the handshake location
-//              in DPRAM
-//
-// Notes:
-//
-//---------------------------------------------------------------------------
+/* write the handshake value to the handshake location */
 static void put_handshake(struct ft1000_usb *ft1000dev,u16 handshake_value)
 {
 	u32 tempx;
-- 
cgit 


From c50ede79751ffcf263b8f4bbb4060f41eec3dfe0 Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Mon, 14 Oct 2013 15:21:48 -0700
Subject: staging: ft1000: remove formal get_request_type function header from
 ft1000-download.c

since there was no information in the C99 style header
for function get_request_type() that was not easily obtainable
by looking at the function, the header was completely removed.

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_download.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index 911acfda27c3..f47546aa1385 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -275,18 +275,6 @@ static void put_handshake_usb(struct ft1000_usb *ft1000dev,u16 handshake_value)
         for (i=0; i<1000; i++);
 }
 
-//---------------------------------------------------------------------------
-// Function:    get_request_type
-//
-// Parameters:  struct ft1000_usb  - device structure
-//
-// Returns:     request type - success
-//
-// Description: This function returns the request type
-//
-// Notes:
-//
-//---------------------------------------------------------------------------
 static u16 get_request_type(struct ft1000_usb *ft1000dev)
 {
 	u16 request_type;
-- 
cgit 


From 1f13b0b8e7a60cfdc5fcc7367350592b37789528 Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Mon, 14 Oct 2013 15:38:18 -0700
Subject: staging: ft1000: remove formal get_request_value function header from
 ft1000-download.c

since there was no information in the C99 style header
for function get_request_type() that was not easily obtainable
by looking at the function, the header was completely removed.

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_download.c | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index f47546aa1385..97950b98919f 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -327,18 +327,6 @@ static u16 get_request_type_usb(struct ft1000_usb *ft1000dev)
 	return request_type;
 }
 
-//---------------------------------------------------------------------------
-// Function:    get_request_value
-//
-// Parameters:  struct ft1000_usb  - device structure
-//
-// Returns:     request value - success
-//
-// Description: This function returns the request value
-//
-// Notes:
-//
-//---------------------------------------------------------------------------
 static long get_request_value(struct ft1000_usb *ft1000dev)
 {
 	u32 value;
-- 
cgit 


From c8e479c48326d3c2dbd55e61f0da00694df472a8 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Fri, 4 Oct 2013 11:01:39 -0300
Subject: [media] hdpvr: fix sparse warnings

drivers/media/usb/hdpvr/hdpvr-core.c:110:54: warning: incorrect type in argument 1 (different base types)
drivers/media/usb/hdpvr/hdpvr-core.c:112:39: warning: invalid assignment: +=
drivers/media/usb/hdpvr/hdpvr-core.c:304:26: warning: Using plain integer as NULL pointer

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/hdpvr/hdpvr-core.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/media/usb/hdpvr/hdpvr-core.c b/drivers/media/usb/hdpvr/hdpvr-core.c
index 6e5070774dc2..2f0c89cbac76 100644
--- a/drivers/media/usb/hdpvr/hdpvr-core.c
+++ b/drivers/media/usb/hdpvr/hdpvr-core.c
@@ -78,7 +78,8 @@ void hdpvr_delete(struct hdpvr_device *dev)
 
 static void challenge(u8 *bytes)
 {
-	u64 *i64P, tmp64;
+	__le64 *i64P;
+	u64 tmp64;
 	uint i, idx;
 
 	for (idx = 0; idx < 32; ++idx) {
@@ -106,10 +107,10 @@ static void challenge(u8 *bytes)
 			for (i = 0; i < 3; i++)
 				bytes[1] *= bytes[6] + 1;
 			for (i = 0; i < 3; i++) {
-				i64P = (u64 *)bytes;
+				i64P = (__le64 *)bytes;
 				tmp64 = le64_to_cpup(i64P);
-				tmp64 <<= bytes[7] & 0x0f;
-				*i64P += cpu_to_le64(tmp64);
+				tmp64 = tmp64 + (tmp64 << (bytes[7] & 0x0f));
+				*i64P = cpu_to_le64(tmp64);
 			}
 			break;
 		}
@@ -301,8 +302,6 @@ static int hdpvr_probe(struct usb_interface *interface,
 		goto error;
 	}
 
-	dev->workqueue = 0;
-
 	/* init video transfer queues first of all */
 	/* to prevent oops in hdpvr_delete() on error paths */
 	INIT_LIST_HEAD(&dev->free_buff_list);
-- 
cgit 


From 45bc3fce17905036d57706844fcdaa185a23f6e9 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Fri, 4 Oct 2013 11:01:40 -0300
Subject: [media] pvrusb2: fix sparse warning

drivers/media/usb/pvrusb2/pvrusb2-hdw.c:2871:13: warning: symbol 'pvr2_hdw_get_detected_std' was not declared. Should it be static?

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Mike Isely <isely@pobox.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/pvrusb2/pvrusb2-hdw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/usb/pvrusb2/pvrusb2-hdw.c b/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
index c4d51d78f837..ea05f678b559 100644
--- a/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
+++ b/drivers/media/usb/pvrusb2/pvrusb2-hdw.c
@@ -2868,7 +2868,7 @@ static void pvr2_subdev_set_control(struct pvr2_hdw *hdw, int id,
 		pvr2_subdev_set_control(hdw, id, #lab, (hdw)->lab##_val); \
 	}
 
-v4l2_std_id pvr2_hdw_get_detected_std(struct pvr2_hdw *hdw)
+static v4l2_std_id pvr2_hdw_get_detected_std(struct pvr2_hdw *hdw)
 {
 	v4l2_std_id std;
 	std = (v4l2_std_id)hdw->std_mask_avail;
-- 
cgit 


From 19227efb9ba40801a7d34c88a63c1f08a8382d27 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Fri, 4 Oct 2013 11:01:41 -0300
Subject: [media] timblogiw: fix two sparse warnings

drivers/media/platform/timblogiw.c:763:43: warning: incorrect type in initializer (incompatible argument 3 (different signedness))
drivers/media/platform/timblogiw.c:764:43: warning: incorrect type in initializer (incompatible argument 3 (different signedness))

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/timblogiw.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/timblogiw.c b/drivers/media/platform/timblogiw.c
index b557caf5b1a4..6a74ce040d28 100644
--- a/drivers/media/platform/timblogiw.c
+++ b/drivers/media/platform/timblogiw.c
@@ -403,7 +403,7 @@ static int timblogiw_s_input(struct file *file, void  *priv, unsigned int input)
 	return 0;
 }
 
-static int timblogiw_streamon(struct file *file, void  *priv, unsigned int type)
+static int timblogiw_streamon(struct file *file, void  *priv, enum v4l2_buf_type type)
 {
 	struct video_device *vdev = video_devdata(file);
 	struct timblogiw_fh *fh = priv;
@@ -420,7 +420,7 @@ static int timblogiw_streamon(struct file *file, void  *priv, unsigned int type)
 }
 
 static int timblogiw_streamoff(struct file *file, void  *priv,
-	unsigned int type)
+	enum v4l2_buf_type type)
 {
 	struct video_device *vdev = video_devdata(file);
 	struct timblogiw_fh *fh = priv;
-- 
cgit 


From 84eeb0b4c7927feb69a3b4dc0a1ee201893d9137 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Fri, 4 Oct 2013 11:01:42 -0300
Subject: [media] tuner-xs2028.c: fix sparse warnings

drivers/media/tuners/tuner-xc2028.c:575:24: warning: cast to restricted __le16
drivers/media/tuners/tuner-xc2028.c:686:21: warning: cast to restricted __le16

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/tuners/tuner-xc2028.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/tuners/tuner-xc2028.c b/drivers/media/tuners/tuner-xc2028.c
index 878d2c4d9e8e..e287a7417319 100644
--- a/drivers/media/tuners/tuner-xc2028.c
+++ b/drivers/media/tuners/tuner-xc2028.c
@@ -572,7 +572,7 @@ static int load_firmware(struct dvb_frontend *fe, unsigned int type,
 			return -EINVAL;
 		}
 
-		size = le16_to_cpu(*(__u16 *) p);
+		size = le16_to_cpu(*(__le16 *) p);
 		p += sizeof(size);
 
 		if (size == 0xffff)
@@ -683,7 +683,7 @@ static int load_scode(struct dvb_frontend *fe, unsigned int type,
 		/* 16 SCODE entries per file; each SCODE entry is 12 bytes and
 		 * has a 2-byte size header in the firmware format. */
 		if (priv->firm[pos].size != 14 * 16 || scode >= 16 ||
-		    le16_to_cpu(*(__u16 *)(p + 14 * scode)) != 12)
+		    le16_to_cpu(*(__le16 *)(p + 14 * scode)) != 12)
 			return -EINVAL;
 		p += 14 * scode + 2;
 	}
-- 
cgit 


From 883cdd5e3b71703d95b3d414abd8bef1b6217dd0 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Fri, 4 Oct 2013 11:01:46 -0300
Subject: [media] fmdrv_common: fix sparse warning

drivers/media/radio/wl128x/fmdrv_common.c:178:6: warning: symbol 'g_st_write' was not declared. Should it be static?

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/radio/wl128x/fmdrv_common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/radio/wl128x/fmdrv_common.c b/drivers/media/radio/wl128x/fmdrv_common.c
index 253f307f0b37..4b2e9e8298e1 100644
--- a/drivers/media/radio/wl128x/fmdrv_common.c
+++ b/drivers/media/radio/wl128x/fmdrv_common.c
@@ -175,7 +175,7 @@ static int_handler_prototype int_handler_table[] = {
 	fm_irq_handle_intmsk_cmd_resp
 };
 
-long (*g_st_write) (struct sk_buff *skb);
+static long (*g_st_write) (struct sk_buff *skb);
 static struct completion wait_for_fmdrv_reg_comp;
 
 static inline void fm_irq_call(struct fmdev *fmdev)
-- 
cgit 


From 437eb18d804dbf7386e4ae46738facfd3074229f Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Fri, 4 Oct 2013 11:01:47 -0300
Subject: [media] radio-keene: fix sparse warning

drivers/media/radio/radio-keene.c:126:45: warning: dubious: !x | y

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/radio/radio-keene.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/radio/radio-keene.c b/drivers/media/radio/radio-keene.c
index 21db23b196be..fa3964022b96 100644
--- a/drivers/media/radio/radio-keene.c
+++ b/drivers/media/radio/radio-keene.c
@@ -123,7 +123,7 @@ static int keene_cmd_set(struct keene_device *radio)
 	/* If bit 0 is set, then transmit mono, otherwise stereo.
 	   If bit 2 is set, then enable 75 us preemphasis, otherwise
 	   it is 50 us. */
-	radio->buffer[3] = (!radio->stereo) | (radio->preemph_75_us ? 4 : 0);
+	radio->buffer[3] = (radio->stereo ? 0 : 1) | (radio->preemph_75_us ? 4 : 0);
 	radio->buffer[4] = 0x00;
 	radio->buffer[5] = 0x00;
 	radio->buffer[6] = 0x00;
-- 
cgit 


From eb9678c4b0025cb87292aee9f709eae8c9b34bfc Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Fri, 4 Oct 2013 11:01:49 -0300
Subject: [media] cx231xx: fix sparse warnings

drivers/media/usb/cx231xx/cx231xx-pcb-cfg.c:31:19: warning: symbol 'cx231xx_Scenario' was not declared. Should it be static?
drivers/media/usb/cx231xx/cx231xx-pcb-cfg.c:675:23: warning: cast to restricted __le32

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/cx231xx/cx231xx-pcb-cfg.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/usb/cx231xx/cx231xx-pcb-cfg.c b/drivers/media/usb/cx231xx/cx231xx-pcb-cfg.c
index d7308ab7a90f..2a34ceee4802 100644
--- a/drivers/media/usb/cx231xx/cx231xx-pcb-cfg.c
+++ b/drivers/media/usb/cx231xx/cx231xx-pcb-cfg.c
@@ -28,7 +28,7 @@ MODULE_PARM_DESC(pcb_debug, "enable pcb config debug messages [video]");
 
 /******************************************************************************/
 
-struct pcb_config cx231xx_Scenario[] = {
+static struct pcb_config cx231xx_Scenario[] = {
 	{
 	 INDEX_SELFPOWER_DIGITAL_ONLY,	/* index */
 	 USB_SELF_POWER,	/* power_type */
@@ -672,7 +672,7 @@ u32 initialize_cx231xx(struct cx231xx *dev)
 	pcb config it is related to */
 	cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, BOARD_CFG_STAT, data, 4);
 
-	config_info = le32_to_cpu(*((u32 *) data));
+	config_info = le32_to_cpu(*((__le32 *)data));
 	usb_speed = (u8) (config_info & 0x1);
 
 	/* Verify this device belongs to Bus power or Self power device */
-- 
cgit 


From 336d30ed131bd0b135577ef5c263fe40d2e5d8d3 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Fri, 4 Oct 2013 11:01:50 -0300
Subject: [media] tlg2300: fix sparse warning

drivers/media/usb/tlg2300/pd-main.c:235:25: warning: incorrect type in assignment (different base types)

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/tlg2300/pd-main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/usb/tlg2300/pd-main.c b/drivers/media/usb/tlg2300/pd-main.c
index 95f94e5aa66d..3316caa4733b 100644
--- a/drivers/media/usb/tlg2300/pd-main.c
+++ b/drivers/media/usb/tlg2300/pd-main.c
@@ -232,7 +232,7 @@ static int firmware_download(struct usb_device *udev)
 		goto out;
 	}
 
-	max_packet_size = udev->ep_out[0x1]->desc.wMaxPacketSize;
+	max_packet_size = le16_to_cpu(udev->ep_out[0x1]->desc.wMaxPacketSize);
 	log("\t\t download size : %d", (int)max_packet_size);
 
 	for (offset = 0; offset < fwlength; offset += max_packet_size) {
-- 
cgit 


From e7ed40fb26942c74d3808e00d5711588a0cdc476 Mon Sep 17 00:00:00 2001
From: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Date: Tue, 15 Oct 2013 15:00:40 +0530
Subject: Staging: vt6656: adding spaces around '='

Fix checkpatch error: ERROR: spaces required around that '=' (ctx:WxV)

Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/wmgr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/vt6656/wmgr.c b/drivers/staging/vt6656/wmgr.c
index 5a6a5bad0c42..7bb3cee80469 100644
--- a/drivers/staging/vt6656/wmgr.c
+++ b/drivers/staging/vt6656/wmgr.c
@@ -81,7 +81,7 @@
 #include "control.h"
 #include "rndis.h"
 
-static int          msglevel                =MSG_LEVEL_INFO;
+static int msglevel = MSG_LEVEL_INFO;
 //static int          msglevel                =MSG_LEVEL_DEBUG;
 
 static int ChannelExceedZoneType(struct vnt_private *, u8 byCurrChannel);
-- 
cgit 


From dc070641ee2df26da60fa9a1cbe446ee59ce4f0e Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 15 Oct 2013 09:40:57 -0700
Subject: Revert "staging:media:lirc: quoted string split across lines"

This reverts commit 7db78438d932d12afda5f367cfcb56337457e037.

It broke the build, and isn't ok.

Cc: Archana kumari <archanakumari959@gmail.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/media/lirc/lirc_imon.c | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/media/lirc/lirc_imon.c b/drivers/staging/media/lirc/lirc_imon.c
index 8180187d8ebd..4afa7da11f37 100644
--- a/drivers/staging/media/lirc/lirc_imon.c
+++ b/drivers/staging/media/lirc/lirc_imon.c
@@ -619,9 +619,8 @@ static void imon_incoming_packet(struct imon_context *context,
 		return;
 
 	if (len != 8) {
-		dev_warn(dev,
-		 "imon %s: invalid incoming packet size (len = %d, intf%d)\n",
-				__func__, len, intf);
+		dev_warn(dev, "imon %s: invalid incoming packet "
+			 "size (len = %d, intf%d)\n", __func__, len, intf);
 		return;
 	}
 
@@ -879,8 +878,8 @@ static int imon_probe(struct usb_interface *interface,
 		alloc_status = 7;
 		goto unlock;
 	} else
-		dev_info(dev, "Registered iMON driver (lirc minor: %d)\n",
-				lirc_minor);
+		dev_info(dev, "Registered iMON driver "
+			 "(lirc minor: %d)\n", lirc_minor);
 
 	/* Needed while unregistering! */
 	driver->minor = lirc_minor;
@@ -924,16 +923,14 @@ static int imon_probe(struct usb_interface *interface,
 
 		if (usb_register_dev(interface, &imon_class)) {
 			/* Not a fatal error, so ignore */
-			dev_info(dev,
-			       "%s: could not get a minor number for display\n"
-						__func__);
+			dev_info(dev, "%s: could not get a minor number for "
+				 "display\n", __func__);
 		}
 	}
 
-	dev_info(dev,
-		"iMON device (%04x:%04x, intf%d) on usb<%d:%d> initialized\n",
-			vendor, product, ifnum, usbdev->bus->busnum,
-					usbdev->devnum);
+	dev_info(dev, "iMON device (%04x:%04x, intf%d) on "
+		 "usb<%d:%d> initialized\n", vendor, product, ifnum,
+		 usbdev->bus->busnum, usbdev->devnum);
 
 unlock:
 	mutex_unlock(&context->ctx_lock);
-- 
cgit 


From 759e9eba4380420ee6c33873cde1b503d5962154 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Mon, 14 Oct 2013 19:58:12 +0100
Subject: staging: vt6656: main_usb.c correct pDevice->pControlURB goto

Correct goto of patch
staging: vt6656: make pControlURB available life time of driver.

Which should free_netdev.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/main_usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index 0de215657388..a4fdd3a73ee1 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -710,7 +710,7 @@ vt6656_probe(struct usb_interface *intf, const struct usb_device_id *id)
 	pDevice->pControlURB = usb_alloc_urb(0, GFP_ATOMIC);
 	if (!pDevice->pControlURB) {
 		DBG_PRT(MSG_LEVEL_ERR, KERN_ERR"Failed to alloc control urb\n");
-		goto err_nomem;
+		goto err_netdev;
 	}
 
 	pDevice->tx_80211 = device_dma0_tx_80211;
-- 
cgit 


From 17f3ced05f5ae20c619103df9718af597cf83ac4 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Mon, 14 Oct 2013 19:51:45 +0100
Subject: staging: vt6656: return from workqueues on fMP_DISCONNECTED

Return from work queues on flag fMP_DISCONNECTED to prevent
any scheduling threads past closing of device.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/bssdb.c | 3 +++
 drivers/staging/vt6656/dpc.c   | 6 ++++++
 drivers/staging/vt6656/wcmd.c  | 3 +++
 3 files changed, 12 insertions(+)

diff --git a/drivers/staging/vt6656/bssdb.c b/drivers/staging/vt6656/bssdb.c
index ae0438a43ea5..e120eb2f47e9 100644
--- a/drivers/staging/vt6656/bssdb.c
+++ b/drivers/staging/vt6656/bssdb.c
@@ -824,6 +824,9 @@ void BSSvSecondCallBack(struct work_struct *work)
 	u32 uNonShortSlotSTACnt = 0;
 	u32 uLongPreambleSTACnt = 0;
 
+	if (pDevice->Flags & fMP_DISCONNECTED)
+		return;
+
     spin_lock_irq(&pDevice->lock);
 
     pDevice->uAssocCount = 0;
diff --git a/drivers/staging/vt6656/dpc.c b/drivers/staging/vt6656/dpc.c
index 82d7c1d09ef6..75dc92d64056 100644
--- a/drivers/staging/vt6656/dpc.c
+++ b/drivers/staging/vt6656/dpc.c
@@ -1339,6 +1339,9 @@ void RXvWorkItem(struct work_struct *work)
 	int ntStatus;
 	struct vnt_rcb *pRCB = NULL;
 
+	if (pDevice->Flags & fMP_DISCONNECTED)
+		return;
+
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Rx Polling Thread\n");
     spin_lock_irq(&pDevice->lock);
 
@@ -1398,6 +1401,9 @@ void RXvMngWorkItem(struct work_struct *work)
 	struct vnt_rx_mgmt *pRxPacket;
 	int bReAllocSkb = false;
 
+	if (pDevice->Flags & fMP_DISCONNECTED)
+		return;
+
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Rx Mng Thread\n");
 
     spin_lock_irq(&pDevice->lock);
diff --git a/drivers/staging/vt6656/wcmd.c b/drivers/staging/vt6656/wcmd.c
index debb87a6aba7..95d2960bd1a1 100644
--- a/drivers/staging/vt6656/wcmd.c
+++ b/drivers/staging/vt6656/wcmd.c
@@ -286,6 +286,9 @@ void vRunCommand(struct work_struct *work)
 	u8 byMask[8] = {1, 2, 4, 8, 0x10, 0x20, 0x40, 0x80};
 	u8 byData;
 
+	if (pDevice->Flags & fMP_DISCONNECTED)
+		return;
+
     if (pDevice->dwDiagRefCount != 0)
         return;
     if (pDevice->bCmdRunning != true)
-- 
cgit 


From 60cc27472c9c4239cf6aec957fdb520510a5d93a Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Mon, 14 Oct 2013 19:46:52 +0100
Subject: staging: vt6656: Remove 10 second timer and move to
 BSSvSecondCallBack

Remove sTimerTxData 10 second timer which triggers PSbSendNullPacket
every 40 seconds when bLinkPass == true.

Move the 40 second timer to the existing BSSvSecondCallBack
one second delayed workqueue and trigger every 40 seconds when
bLinkPass == true.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/bssdb.c    | 21 +++++++++++++----
 drivers/staging/vt6656/device.h   |  7 ++----
 drivers/staging/vt6656/main_usb.c |  2 --
 drivers/staging/vt6656/power.c    |  6 ++---
 drivers/staging/vt6656/usbpipe.c  |  2 --
 drivers/staging/vt6656/wcmd.c     | 47 ---------------------------------------
 drivers/staging/vt6656/wcmd.h     |  2 --
 drivers/staging/vt6656/wmgr.c     |  8 -------
 8 files changed, 21 insertions(+), 74 deletions(-)

diff --git a/drivers/staging/vt6656/bssdb.c b/drivers/staging/vt6656/bssdb.c
index e120eb2f47e9..dad3f8c78e21 100644
--- a/drivers/staging/vt6656/bssdb.c
+++ b/drivers/staging/vt6656/bssdb.c
@@ -57,6 +57,7 @@
 #include "control.h"
 #include "rndis.h"
 #include "iowpa.h"
+#include "power.h"
 
 static int          msglevel                =MSG_LEVEL_INFO;
 //static int          msglevel                =MSG_LEVEL_DEBUG;
@@ -1124,10 +1125,22 @@ else {
         }
     }
 
-    if (pDevice->bLinkPass == true) {
-        if (netif_queue_stopped(pDevice->dev))
-            netif_wake_queue(pDevice->dev);
-    }
+	if (pDevice->bLinkPass == true) {
+		if (pMgmt->eAuthenMode < WMAC_AUTH_WPA ||
+			pDevice->fWPA_Authened == true) {
+			if (++pDevice->tx_data_time_out > 40) {
+				pDevice->tx_trigger = true;
+
+				PSbSendNullPacket(pDevice);
+
+				pDevice->tx_trigger = false;
+				pDevice->tx_data_time_out = 0;
+			}
+		}
+
+		if (netif_queue_stopped(pDevice->dev))
+			netif_wake_queue(pDevice->dev);
+	}
 
     spin_unlock_irq(&pDevice->lock);
 
diff --git a/drivers/staging/vt6656/device.h b/drivers/staging/vt6656/device.h
index fa1cefb2f2af..95b181d6c5b8 100644
--- a/drivers/staging/vt6656/device.h
+++ b/drivers/staging/vt6656/device.h
@@ -711,11 +711,8 @@ struct vnt_private {
 	/* One second callback */
 	struct delayed_work second_callback_work;
 
-	struct timer_list sTimerTxData;
-	unsigned long nTxDataTimeCout;
-	int fTxDataInSleep;
-	int IsTxDataTrigger;
-
+	u8 tx_data_time_out;
+	bool tx_trigger;
 	int fWPA_Authened; /*is WPA/WPA-PSK or WPA2/WPA2-PSK authen?? */
 	u8 byReAssocCount;
 	u8 byLinkWaitCount;
diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index a4fdd3a73ee1..5e4a5d0988d7 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -1081,8 +1081,6 @@ static int device_close(struct net_device *dev)
 	cancel_delayed_work_sync(&pDevice->run_command_work);
 	cancel_delayed_work_sync(&pDevice->second_callback_work);
 
-    del_timer(&pDevice->sTimerTxData);
-
     if (pDevice->bDiversityRegCtlON) {
         del_timer(&pDevice->TimerSQ3Tmax1);
         del_timer(&pDevice->TimerSQ3Tmax2);
diff --git a/drivers/staging/vt6656/power.c b/drivers/staging/vt6656/power.c
index edc8975b2e2a..6334315807bb 100644
--- a/drivers/staging/vt6656/power.c
+++ b/drivers/staging/vt6656/power.c
@@ -257,10 +257,8 @@ int PSbSendNullPacket(struct vnt_private *pDevice)
 	if (pDevice->bLinkPass == false)
 		return false;
 
-	if ((pDevice->bEnablePSMode == false) &&
-		(pDevice->fTxDataInSleep == false)) {
-			return false;
-	}
+	if (pDevice->bEnablePSMode == false && pDevice->tx_trigger == false)
+		return false;
 
 	memset(pMgmt->pbyPSPacketPool, 0, sizeof(struct vnt_tx_mgmt)
 		+ WLAN_NULLDATA_FR_MAXLEN);
diff --git a/drivers/staging/vt6656/usbpipe.c b/drivers/staging/vt6656/usbpipe.c
index 3a03f1d5b685..fc9b6ee4849c 100644
--- a/drivers/staging/vt6656/usbpipe.c
+++ b/drivers/staging/vt6656/usbpipe.c
@@ -656,8 +656,6 @@ static void s_nsBulkOutIoCompleteWrite(struct urb *urb)
         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Write %d bytes\n",(int)ulBufLen);
         pDevice->ulBulkOutBytesWrite += ulBufLen;
         pDevice->ulBulkOutContCRCError = 0;
-	pDevice->nTxDataTimeCout = 0;
-
     } else {
         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"BULK Out failed %d\n", status);
         pDevice->ulBulkOutError++;
diff --git a/drivers/staging/vt6656/wcmd.c b/drivers/staging/vt6656/wcmd.c
index 95d2960bd1a1..2f8e2a875331 100644
--- a/drivers/staging/vt6656/wcmd.c
+++ b/drivers/staging/vt6656/wcmd.c
@@ -657,22 +657,6 @@ void vRunCommand(struct work_struct *work)
                     netif_wake_queue(pDevice->dev);
                 }
 
-		 if(pDevice->IsTxDataTrigger != false)   {    //TxDataTimer is not triggered at the first time
-                     // printk("Re-initial TxDataTimer****\n");
-		    del_timer(&pDevice->sTimerTxData);
-                      init_timer(&pDevice->sTimerTxData);
-			pDevice->sTimerTxData.data = (unsigned long) pDevice;
-                      pDevice->sTimerTxData.function = (TimerFunction)BSSvSecondTxData;
-                      pDevice->sTimerTxData.expires = RUN_AT(10*HZ);      //10s callback
-                      pDevice->fTxDataInSleep = false;
-                      pDevice->nTxDataTimeCout = 0;
-		 }
-		 else {
-		   // printk("mike:-->First time trigger TimerTxData InSleep\n");
-		 }
-		pDevice->IsTxDataTrigger = true;
-                add_timer(&pDevice->sTimerTxData);
-
             }
 	   else if(pMgmt->eCurrState < WMAC_STATE_ASSOCPENDING) {
                printk("WLAN_ASSOCIATE_WAIT:Association Fail???\n");
@@ -684,7 +668,6 @@ void vRunCommand(struct work_struct *work)
 	       vCommandTimerWait((void *) pDevice, ASSOCIATE_TIMEOUT/2);
 	       return;
 	   }
-	          pDevice->byLinkWaitCount = 0;
 
             s_bCommandComplete(pDevice);
             break;
@@ -1162,33 +1145,3 @@ void vResetCommandTimer(struct vnt_private *pDevice)
 	pDevice->bCmdRunning = false;
 	pDevice->bCmdClear = false;
 }
-
-void BSSvSecondTxData(struct vnt_private *pDevice)
-{
-	struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
-
-	pDevice->nTxDataTimeCout++;
-
-	if (pDevice->nTxDataTimeCout < 4) {   //don't tx data if timer less than 40s
-		// printk("mike:%s-->no data Tx not exceed the desired Time as %d\n",__FUNCTION__,
-		//  	(int)pDevice->nTxDataTimeCout);
-		pDevice->sTimerTxData.expires = RUN_AT(10 * HZ);      //10s callback
-		add_timer(&pDevice->sTimerTxData);
-		return;
-	}
-
-	spin_lock_irq(&pDevice->lock);
-	//is wap_supplicant running successful OR only open && sharekey mode!
-	if (((pDevice->bLinkPass == true) &&
-		(pMgmt->eAuthenMode < WMAC_AUTH_WPA)) ||  //open && sharekey linking
-		(pDevice->fWPA_Authened == true)) {   //wpa linking
-		//   printk("mike:%s-->InSleep Tx Data Procedure\n",__FUNCTION__);
-		pDevice->fTxDataInSleep = true;
-		PSbSendNullPacket(pDevice);      //send null packet
-		pDevice->fTxDataInSleep = false;
-	}
-	spin_unlock_irq(&pDevice->lock);
-
-	pDevice->sTimerTxData.expires = RUN_AT(10 * HZ);      //10s callback
-	add_timer(&pDevice->sTimerTxData);
-}
diff --git a/drivers/staging/vt6656/wcmd.h b/drivers/staging/vt6656/wcmd.h
index cd12558d5d3f..caf2684ce915 100644
--- a/drivers/staging/vt6656/wcmd.h
+++ b/drivers/staging/vt6656/wcmd.h
@@ -107,6 +107,4 @@ int bScheduleCommand(struct vnt_private *, CMD_CODE eCommand, u8 *pbyItem0);
 
 void vRunCommand(struct work_struct *work);
 
-void BSSvSecondTxData(struct vnt_private *);
-
 #endif /* __WCMD_H__ */
diff --git a/drivers/staging/vt6656/wmgr.c b/drivers/staging/vt6656/wmgr.c
index 7bb3cee80469..e26c41519b15 100644
--- a/drivers/staging/vt6656/wmgr.c
+++ b/drivers/staging/vt6656/wmgr.c
@@ -213,14 +213,6 @@ void vMgrObjectInit(struct vnt_private *pDevice)
     pMgmt->wIBSSBeaconPeriod = DEFAULT_IBSS_BI;
     BSSvClearBSSList((void *) pDevice, false);
 
-    init_timer(&pDevice->sTimerTxData);
-    pDevice->sTimerTxData.data = (unsigned long)pDevice;
-    pDevice->sTimerTxData.function = (TimerFunction)BSSvSecondTxData;
-    pDevice->sTimerTxData.expires = RUN_AT(10*HZ);      //10s callback
-    pDevice->fTxDataInSleep = false;
-    pDevice->IsTxDataTrigger = false;
-    pDevice->nTxDataTimeCout = 0;
-
     pDevice->cbFreeCmdQueue = CMD_Q_SIZE;
     pDevice->uCmdDequeueIdx = 0;
     pDevice->uCmdEnqueueIdx = 0;
-- 
cgit 


From e1feda132fdf3e8d16689bbc6af38d40278a4e92 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Mon, 14 Oct 2013 19:44:13 +0100
Subject: staging: vt6656: return if pControlURB->hcpriv not NULL

Fixes occasional urb submitted while active.

Even thought the fMP_CONTROL_WRITES/fMP_CONTROL_READS flags
are cleared in the return context urb->hcpriv is not NULL.

check for hcpriv and return STATUS_FAILURE if not NULL.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/usbpipe.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/staging/vt6656/usbpipe.c b/drivers/staging/vt6656/usbpipe.c
index fc9b6ee4849c..5fc18ad822d3 100644
--- a/drivers/staging/vt6656/usbpipe.c
+++ b/drivers/staging/vt6656/usbpipe.c
@@ -118,6 +118,9 @@ int PIPEnsControlOut(struct vnt_private *pDevice, u8 byRequest, u16 wValue,
 	if (pDevice->Flags & fMP_CONTROL_READS)
 		return STATUS_FAILURE;
 
+	if (pDevice->pControlURB->hcpriv)
+		return STATUS_FAILURE;
+
 	MP_SET_FLAG(pDevice, fMP_CONTROL_WRITES);
 
 	pDevice->sUsbCtlRequest.bRequestType = 0x40;
@@ -177,6 +180,9 @@ int PIPEnsControlIn(struct vnt_private *pDevice, u8 byRequest, u16 wValue,
 	if (pDevice->Flags & fMP_CONTROL_WRITES)
 		return STATUS_FAILURE;
 
+	if (pDevice->pControlURB->hcpriv)
+		return STATUS_FAILURE;
+
 	MP_SET_FLAG(pDevice, fMP_CONTROL_READS);
 
 	pDevice->sUsbCtlRequest.bRequestType = 0xC0;
-- 
cgit 


From f6c23f483937b8be53f313ec31068acdca91a25d Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 15 Oct 2013 09:30:00 +0100
Subject: iio:kfifo: Fix memory leak

We need to free the kfifo when we release the buffer, otherwise the fifos memory
will be leaked.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/kfifo_buf.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/kfifo_buf.c b/drivers/iio/kfifo_buf.c
index b4ac55a29fc4..ce51092695ab 100644
--- a/drivers/iio/kfifo_buf.c
+++ b/drivers/iio/kfifo_buf.c
@@ -132,7 +132,10 @@ static int iio_read_first_n_kfifo(struct iio_buffer *r,
 
 static void iio_kfifo_buffer_release(struct iio_buffer *buffer)
 {
-	kfree(iio_to_kfifo(buffer));
+	struct iio_kfifo *kf = iio_to_kfifo(buffer);
+
+	kfifo_free(&kf->kf);
+	kfree(kf);
 }
 
 static const struct iio_buffer_access_funcs kfifo_access_funcs = {
-- 
cgit 


From 0894d80dfddaeb9f95904ceab623460c1bfdab06 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 15 Oct 2013 09:30:00 +0100
Subject: iio:kfifo: Protect against concurrent access from userspace

It is possible for userspace to concurrently access the buffer from multiple
threads or processes. To avoid corruption of the internal state of the buffer we
need to add proper locking. It is possible for multiple processes to try to read
from the buffer concurrently and it is also possible that one process causes a
buffer re-allocation while a different process still access the buffer. Both can
be fixed by protecting the calls to kfifo_to_user() and kfifo_alloc() by the
same mutex. In iio_read_first_n_kfifo() we also use kfifo_recsize() instead of
the buffers bytes_per_datum to avoid a race that can happen if bytes_per_datum
has been changed, but the buffer has not been reallocated yet.

Note that all access to the buffer from within the kernel is already properly
synchronized, so there is no need for extra locking in iio_store_to_kfifo().

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/kfifo_buf.c | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/drivers/iio/kfifo_buf.c b/drivers/iio/kfifo_buf.c
index ce51092695ab..c95b61f60919 100644
--- a/drivers/iio/kfifo_buf.c
+++ b/drivers/iio/kfifo_buf.c
@@ -12,6 +12,7 @@
 struct iio_kfifo {
 	struct iio_buffer buffer;
 	struct kfifo kf;
+	struct mutex user_lock;
 	int update_needed;
 };
 
@@ -34,10 +35,12 @@ static int iio_request_update_kfifo(struct iio_buffer *r)
 
 	if (!buf->update_needed)
 		goto error_ret;
+	mutex_lock(&buf->user_lock);
 	kfifo_free(&buf->kf);
 	ret = __iio_allocate_kfifo(buf, buf->buffer.bytes_per_datum,
 				   buf->buffer.length);
 	r->stufftoread = false;
+	mutex_unlock(&buf->user_lock);
 error_ret:
 	return ret;
 }
@@ -114,12 +117,13 @@ static int iio_read_first_n_kfifo(struct iio_buffer *r,
 	int ret, copied;
 	struct iio_kfifo *kf = iio_to_kfifo(r);
 
-	if (n < r->bytes_per_datum || r->bytes_per_datum == 0)
-		return -EINVAL;
+	if (mutex_lock_interruptible(&kf->user_lock))
+		return -ERESTARTSYS;
 
-	ret = kfifo_to_user(&kf->kf, buf, n, &copied);
-	if (ret < 0)
-		return ret;
+	if (!kfifo_initialized(&kf->kf) || n < kfifo_esize(&kf->kf))
+		ret = -EINVAL;
+	else
+		ret = kfifo_to_user(&kf->kf, buf, n, &copied);
 
 	if (kfifo_is_empty(&kf->kf))
 		r->stufftoread = false;
@@ -127,6 +131,10 @@ static int iio_read_first_n_kfifo(struct iio_buffer *r,
 	if (!kfifo_is_empty(&kf->kf))
 		r->stufftoread = true;
 
+	mutex_unlock(&kf->user_lock);
+	if (ret < 0)
+		return ret;
+
 	return copied;
 }
 
@@ -134,6 +142,7 @@ static void iio_kfifo_buffer_release(struct iio_buffer *buffer)
 {
 	struct iio_kfifo *kf = iio_to_kfifo(buffer);
 
+	mutex_destroy(&kf->user_lock);
 	kfifo_free(&kf->kf);
 	kfree(kf);
 }
@@ -161,6 +170,7 @@ struct iio_buffer *iio_kfifo_allocate(struct iio_dev *indio_dev)
 	kf->buffer.attrs = &iio_kfifo_attribute_group;
 	kf->buffer.access = &kfifo_access_funcs;
 	kf->buffer.length = 2;
+	mutex_init(&kf->user_lock);
 	return &kf->buffer;
 }
 EXPORT_SYMBOL(iio_kfifo_allocate);
-- 
cgit 


From 5b78e5138e6a636d00fea08514bfc5a2ff5dfb15 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 15 Oct 2013 09:30:00 +0100
Subject: iio:kfifo: Empty buffer on update

The kfifo's request_update callback will free the current buffer and allocate a
new one if the size has changed. This will remove any samples that might still
be left in the buffer. If the size has not changed the buffer content is
left untouched though. This is a bit inconsistent and might cause an application
to see data from a previous capture. This patch inserts a call to
kfifo_reset_out() when the size did not change. This makes sure that any pending
samples are removed from the buffer.

Note, due to a different bug the buffer is currently always re-allocated, even
if the size did not change. So this patch will not change the behavior. In the
next patch the bug will be fixed and this patch makes sure that the current
behavior is kept.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/kfifo_buf.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/iio/kfifo_buf.c b/drivers/iio/kfifo_buf.c
index c95b61f60919..d654f42e16aa 100644
--- a/drivers/iio/kfifo_buf.c
+++ b/drivers/iio/kfifo_buf.c
@@ -33,15 +33,17 @@ static int iio_request_update_kfifo(struct iio_buffer *r)
 	int ret = 0;
 	struct iio_kfifo *buf = iio_to_kfifo(r);
 
-	if (!buf->update_needed)
-		goto error_ret;
 	mutex_lock(&buf->user_lock);
-	kfifo_free(&buf->kf);
-	ret = __iio_allocate_kfifo(buf, buf->buffer.bytes_per_datum,
+	if (buf->update_needed) {
+		kfifo_free(&buf->kf);
+		ret = __iio_allocate_kfifo(buf, buf->buffer.bytes_per_datum,
 				   buf->buffer.length);
+	} else {
+		kfifo_reset_out(&buf->kf);
+	}
 	r->stufftoread = false;
 	mutex_unlock(&buf->user_lock);
-error_ret:
+
 	return ret;
 }
 
-- 
cgit 


From cb6fbfa1387f47e5ef4ab2fac5ed71f3c1175f75 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 15 Oct 2013 09:30:00 +0100
Subject: iio:kfifo: Set update_needed to false after allocating a new buffer

update_needed is used to decide whether the kfifo buffer needs to be
re-allocated. It is set to true whenever the size of the buffer is changed. It
is never set to false though, causing the buffer to always be re-allocated.
Setting update_needed to false after the new buffer has been allocated fixes the
problem.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/kfifo_buf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/kfifo_buf.c b/drivers/iio/kfifo_buf.c
index d654f42e16aa..95c6fc81c2c7 100644
--- a/drivers/iio/kfifo_buf.c
+++ b/drivers/iio/kfifo_buf.c
@@ -38,6 +38,7 @@ static int iio_request_update_kfifo(struct iio_buffer *r)
 		kfifo_free(&buf->kf);
 		ret = __iio_allocate_kfifo(buf, buf->buffer.bytes_per_datum,
 				   buf->buffer.length);
+		buf->update_needed = false;
 	} else {
 		kfifo_reset_out(&buf->kf);
 	}
-- 
cgit 


From 310a3d4854d71c0a565c9f7705749e78f6113c4c Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 09:13:39 -0700
Subject: Bluetooth: Add support for entering limited discoverable mode

The limited discoverable mode should be used when a device is only
discoverable for a certain amount of time and after that it returns
back into being non-discoverable.

This adds another option to the set discoverable management command
to clearly distinguish limited discoverable from general discoverable
mode.

While the general discoverable mode can be set with a specific
timeout or as permanent setting, the limited discoverable mode
requires a timeout. The timeout is flexible and the kernel will
not enforce any specific limitations. That GAP part of this is
required by userspace to enforce according to the Bluetooth core
specification.

Devices in limited discoverable mode can still be found by the
general discovery procedure. It is mandatory that a device sets
both GIAC and LIAC when entering limited discoverable mode.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c |  8 ++++++
 net/bluetooth/mgmt.c     | 67 ++++++++++++++++++++++++++++++++++++++++--------
 2 files changed, 65 insertions(+), 10 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index a49ca4869621..7a3d17990b43 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1282,6 +1282,7 @@ static int hci_dev_do_close(struct hci_dev *hdev)
 		cancel_delayed_work(&hdev->discov_off);
 		hdev->discov_timeout = 0;
 		clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags);
+		clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags);
 	}
 
 	if (test_and_clear_bit(HCI_SERVICE_CACHE, &hdev->dev_flags))
@@ -1717,6 +1718,13 @@ static void hci_discov_off(struct work_struct *work)
 	hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, sizeof(scan), &scan);
 	hci_req_run(&req, NULL);
 
+	/* When discoverable timeout triggers, then just make sure
+	 * the limited discoverable flag is cleared. Even in the case
+	 * of a timeout triggered from general discoverable, it is
+	 * safe to unconditionally clear the flag.
+	 */
+	clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags);
+
 	hdev->discov_timeout = 0;
 
 	hci_dev_unlock(hdev);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 1d608ca0b0ee..c70094014d46 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1039,6 +1039,7 @@ static void set_discoverable_complete(struct hci_dev *hdev, u8 status)
 	if (status) {
 		u8 mgmt_err = mgmt_status(status);
 		cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
+		clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags);
 		goto remove_cmd;
 	}
 
@@ -1094,12 +1095,17 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
 				  status);
 
-	if (cp->val != 0x00 && cp->val != 0x01)
+	if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
 				  MGMT_STATUS_INVALID_PARAMS);
 
 	timeout = __le16_to_cpu(cp->timeout);
-	if (!cp->val && timeout > 0)
+
+	/* Disabling discoverable requires that no timeout is set,
+	 * and enabling limited discoverable requires a timeout.
+	 */
+	if ((cp->val == 0x00 && timeout > 0) ||
+	    (cp->val == 0x02 && timeout == 0))
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
 				  MGMT_STATUS_INVALID_PARAMS);
 
@@ -1127,6 +1133,10 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 	if (!hdev_is_powered(hdev)) {
 		bool changed = false;
 
+		/* Setting limited discoverable when powered off is
+		 * not a valid operation since it requires a timeout
+		 * and so no need to check HCI_LIMITED_DISCOVERABLE.
+		 */
 		if (!!cp->val != test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) {
 			change_bit(HCI_DISCOVERABLE, &hdev->dev_flags);
 			changed = true;
@@ -1142,7 +1152,13 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 		goto failed;
 	}
 
-	if (!!cp->val == test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) {
+	/* If the current mode is the same, then just update the timeout
+	 * value with the new value. And if only the timeout gets updated,
+	 * then no need for any HCI transactions.
+	 */
+	if (!!cp->val == test_bit(HCI_DISCOVERABLE, &hdev->dev_flags) &&
+	    (cp->val == 0x02) == test_bit(HCI_LIMITED_DISCOVERABLE,
+					  &hdev->dev_flags)) {
 		cancel_delayed_work(&hdev->discov_off);
 		hdev->discov_timeout = timeout;
 
@@ -1162,24 +1178,55 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 		goto failed;
 	}
 
+	/* Cancel any potential discoverable timeout that might be
+	 * still active and store new timeout value. The arming of
+	 * the timeout happens in the complete handler.
+	 */
+	cancel_delayed_work(&hdev->discov_off);
+	hdev->discov_timeout = timeout;
+
 	hci_req_init(&req, hdev);
 
 	scan = SCAN_PAGE;
 
-	if (cp->val)
+	if (cp->val) {
+		struct hci_cp_write_current_iac_lap hci_cp;
+
+		if (cp->val == 0x02) {
+			/* Limited discoverable mode */
+			set_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags);
+
+			hci_cp.num_iac = 2;
+			hci_cp.iac_lap[0] = 0x00;	/* LIAC */
+			hci_cp.iac_lap[1] = 0x8b;
+			hci_cp.iac_lap[2] = 0x9e;
+			hci_cp.iac_lap[3] = 0x33;	/* GIAC */
+			hci_cp.iac_lap[4] = 0x8b;
+			hci_cp.iac_lap[5] = 0x9e;
+		} else {
+			/* General discoverable mode */
+			clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags);
+
+			hci_cp.num_iac = 1;
+			hci_cp.iac_lap[0] = 0x33;	/* GIAC */
+			hci_cp.iac_lap[1] = 0x8b;
+			hci_cp.iac_lap[2] = 0x9e;
+		}
+
+		hci_req_add(&req, HCI_OP_WRITE_CURRENT_IAC_LAP,
+			    (hci_cp.num_iac * 3) + 1, &hci_cp);
+
 		scan |= SCAN_INQUIRY;
-	else
-		cancel_delayed_work(&hdev->discov_off);
+	} else {
+		clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags);
+	}
 
-	hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
+	hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, sizeof(scan), &scan);
 
 	err = hci_req_run(&req, set_discoverable_complete);
 	if (err < 0)
 		mgmt_pending_remove(cmd);
 
-	if (cp->val)
-		hdev->discov_timeout = timeout;
-
 failed:
 	hci_dev_unlock(hdev);
 	return err;
-- 
cgit 


From dc4a5ee2a3282a1044b164979609b4bfab43900b Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 10:15:57 -0700
Subject: Bluetooth: Make mgmt_new_link_key() return void

The return value of mgmt_new_link_key() function is not used
and so just change it to return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h | 4 ++--
 net/bluetooth/mgmt.c             | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index da21a8d2b4a1..cf6be04336aa 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1103,8 +1103,8 @@ int mgmt_powered(struct hci_dev *hdev, u8 powered);
 void mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
 void mgmt_connectable(struct hci_dev *hdev, u8 connectable);
 void mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
-int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
-		      bool persistent);
+void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
+		       bool persistent);
 void mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 			   u8 addr_type, u32 flags, u8 *name, u8 name_len,
 			   u8 *dev_class);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index c70094014d46..6fb302e04cd8 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4341,8 +4341,8 @@ void mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status)
 				     cmd_status_rsp, &mgmt_err);
 }
 
-int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
-		      bool persistent)
+void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
+		       bool persistent)
 {
 	struct mgmt_ev_new_link_key ev;
 
@@ -4355,7 +4355,7 @@ int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
 	memcpy(ev.key.val, key->val, HCI_LINK_KEY_SIZE);
 	ev.key.pin_len = key->pin_len;
 
-	return mgmt_event(MGMT_EV_NEW_LINK_KEY, hdev, &ev, sizeof(ev), NULL);
+	mgmt_event(MGMT_EV_NEW_LINK_KEY, hdev, &ev, sizeof(ev), NULL);
 }
 
 int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent)
-- 
cgit 


From 9493399108a186492bb828417a43ff37d9ae48fa Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 10:26:39 -0700
Subject: Bluetooth: Move eir_append_data() function into mgmt.c

The eir_append_data() function is only used from mgmt.c and so
instead of having a public function move it to the location where
it is used.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h | 11 -----------
 net/bluetooth/mgmt.c             | 11 +++++++++++
 2 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index cf6be04336aa..42591a41baf0 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1026,17 +1026,6 @@ static inline size_t eir_get_length(u8 *eir, size_t eir_len)
 	return eir_len;
 }
 
-static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data,
-				  u8 data_len)
-{
-	eir[eir_len++] = sizeof(type) + data_len;
-	eir[eir_len++] = type;
-	memcpy(&eir[eir_len], data, data_len);
-	eir_len += data_len;
-
-	return eir_len;
-}
-
 int hci_register_cb(struct hci_cb *hcb);
 int hci_unregister_cb(struct hci_cb *hcb);
 
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 6fb302e04cd8..292e81fcfa95 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4381,6 +4381,17 @@ int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent)
 			  NULL);
 }
 
+static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data,
+				  u8 data_len)
+{
+	eir[eir_len++] = sizeof(type) + data_len;
+	eir[eir_len++] = type;
+	memcpy(&eir[eir_len], data, data_len);
+	eir_len += data_len;
+
+	return eir_len;
+}
+
 void mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 			   u8 addr_type, u32 flags, u8 *name, u8 name_len,
 			   u8 *dev_class)
-- 
cgit 


From efdcf8e3d716730d2212dfd973571a0ed00c9b10 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 10:31:12 -0700
Subject: Bluetooth: Move eir_get_length() function into hci_event.c

The eir_get_length() function is only used from hci_event.c and so
instead of having a public function move it to the location where
it is used.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h | 17 -----------------
 net/bluetooth/hci_event.c        | 17 +++++++++++++++++
 2 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 42591a41baf0..b076cd9f6683 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1009,23 +1009,6 @@ static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type)
 	return false;
 }
 
-static inline size_t eir_get_length(u8 *eir, size_t eir_len)
-{
-	size_t parsed = 0;
-
-	while (parsed < eir_len) {
-		u8 field_len = eir[0];
-
-		if (field_len == 0)
-			return parsed;
-
-		parsed += field_len + 1;
-		eir += field_len + 1;
-	}
-
-	return eir_len;
-}
-
 int hci_register_cb(struct hci_cb *hcb);
 int hci_unregister_cb(struct hci_cb *hcb);
 
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 071c0df118d5..7450626b7704 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2928,6 +2928,23 @@ unlock:
 	hci_dev_unlock(hdev);
 }
 
+static inline size_t eir_get_length(u8 *eir, size_t eir_len)
+{
+	size_t parsed = 0;
+
+	while (parsed < eir_len) {
+		u8 field_len = eir[0];
+
+		if (field_len == 0)
+			return parsed;
+
+		parsed += field_len + 1;
+		eir += field_len + 1;
+	}
+
+	return eir_len;
+}
+
 static void hci_extended_inquiry_result_evt(struct hci_dev *hdev,
 					    struct sk_buff *skb)
 {
-- 
cgit 


From d1967ff88b3854d1bb002cccd15d28ad0d9223a9 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 10:57:40 -0700
Subject: Bluetooth: Update class of device on discoverable timeout

When the discoverable timeout triggers and limited discoverable mode
was used, then the class of device needs to be updated to remove
the limited discoverable bit.

To keep the class of device logic in a central place, expose a new
function mgmt_discoverable_timeout that can be called from the
timeout callback. In case the class of device value needs updating,
it will add the HCI command to the transaction.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h |  1 +
 net/bluetooth/hci_core.c         | 19 +------------------
 net/bluetooth/mgmt.c             | 24 ++++++++++++++++++++++++
 3 files changed, 26 insertions(+), 18 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index b076cd9f6683..fc04bc846617 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1072,6 +1072,7 @@ void mgmt_index_added(struct hci_dev *hdev);
 void mgmt_index_removed(struct hci_dev *hdev);
 void mgmt_set_powered_failed(struct hci_dev *hdev, int err);
 int mgmt_powered(struct hci_dev *hdev, u8 powered);
+void mgmt_discoverable_timeout(struct hci_dev *hdev);
 void mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
 void mgmt_connectable(struct hci_dev *hdev, u8 connectable);
 void mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 7a3d17990b43..2af0baca6dc1 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1705,29 +1705,12 @@ static void hci_power_off(struct work_struct *work)
 static void hci_discov_off(struct work_struct *work)
 {
 	struct hci_dev *hdev;
-	struct hci_request req;
-	u8 scan = SCAN_PAGE;
 
 	hdev = container_of(work, struct hci_dev, discov_off.work);
 
 	BT_DBG("%s", hdev->name);
 
-	hci_dev_lock(hdev);
-
-	hci_req_init(&req, hdev);
-	hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, sizeof(scan), &scan);
-	hci_req_run(&req, NULL);
-
-	/* When discoverable timeout triggers, then just make sure
-	 * the limited discoverable flag is cleared. Even in the case
-	 * of a timeout triggered from general discoverable, it is
-	 * safe to unconditionally clear the flag.
-	 */
-	clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags);
-
-	hdev->discov_timeout = 0;
-
-	hci_dev_unlock(hdev);
+	mgmt_discoverable_timeout(hdev);
 }
 
 int hci_uuids_clear(struct hci_dev *hdev)
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 292e81fcfa95..ca3cdb520b2f 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4288,6 +4288,30 @@ void mgmt_set_powered_failed(struct hci_dev *hdev, int err)
 	mgmt_pending_remove(cmd);
 }
 
+void mgmt_discoverable_timeout(struct hci_dev *hdev)
+{
+	struct hci_request req;
+	u8 scan = SCAN_PAGE;
+
+	hci_dev_lock(hdev);
+
+	/* When discoverable timeout triggers, then just make sure
+	 * the limited discoverable flag is cleared. Even in the case
+	 * of a timeout triggered from general discoverable, it is
+	 * safe to unconditionally clear the flag.
+	 */
+	clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags);
+
+	hci_req_init(&req, hdev);
+	hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, sizeof(scan), &scan);
+	update_class(&req);
+	hci_req_run(&req, NULL);
+
+	hdev->discov_timeout = 0;
+
+	hci_dev_unlock(hdev);
+}
+
 void mgmt_discoverable(struct hci_dev *hdev, u8 discoverable)
 {
 	bool changed;
-- 
cgit 


From d1cb9d1af0bc11b7450a6032f43935c746609418 Mon Sep 17 00:00:00 2001
From: David Miller <davem@davemloft.net>
Date: Thu, 3 Oct 2013 17:24:51 -0400
Subject: of: Make cpu node handling more portable.

Use for_each_node_by_type() to iterate all cpu nodes in the
system.

Provide and overridable function arch_find_n_match_cpu_physical_id,
which sees if the given device node matches 'cpu' and if so sets
'*thread' when non-NULL to the cpu thread number within the core.

The default implementation behaves the same as the existing code.

Add a sparc64 implementation.

Signed-off-by: David S. Miller <davem@davemloft.net>
Tested-by: Sudeep KarkadaNagesha <Sudeep.KarkadaNagesha@arm.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>
---
 arch/sparc/kernel/prom_64.c | 53 +++++++++++++++++++++++++++++++++++++++++++++
 drivers/of/base.c           | 45 +++++++++++++++++++++++---------------
 include/linux/cpu.h         |  3 +++
 3 files changed, 84 insertions(+), 17 deletions(-)

diff --git a/arch/sparc/kernel/prom_64.c b/arch/sparc/kernel/prom_64.c
index d397d7fc5c28..6b39125eb927 100644
--- a/arch/sparc/kernel/prom_64.c
+++ b/arch/sparc/kernel/prom_64.c
@@ -373,6 +373,59 @@ static const char *get_mid_prop(void)
 	return (tlb_type == spitfire ? "upa-portid" : "portid");
 }
 
+bool arch_find_n_match_cpu_physical_id(struct device_node *cpun,
+				       int cpu, unsigned int *thread)
+{
+	const char *mid_prop = get_mid_prop();
+	int this_cpu_id;
+
+	/* On hypervisor based platforms we interrogate the 'reg'
+	 * property.  On everything else we look for a 'upa-portis',
+	 * 'portid', or 'cpuid' property.
+	 */
+
+	if (tlb_type == hypervisor) {
+		struct property *prop = of_find_property(cpun, "reg", NULL);
+		u32 *regs;
+
+		if (!prop) {
+			pr_warn("CPU node missing reg property\n");
+			return false;
+		}
+		regs = prop->value;
+		this_cpu_id = regs[0] & 0x0fffffff;
+	} else {
+		this_cpu_id = of_getintprop_default(cpun, mid_prop, -1);
+
+		if (this_cpu_id < 0) {
+			mid_prop = "cpuid";
+			this_cpu_id = of_getintprop_default(cpun, mid_prop, -1);
+		}
+		if (this_cpu_id < 0) {
+			pr_warn("CPU node missing cpu ID property\n");
+			return false;
+		}
+	}
+	if (this_cpu_id == cpu) {
+		if (thread) {
+			int proc_id = cpu_data(cpu).proc_id;
+
+			/* On sparc64, the cpu thread information is obtained
+			 * either from OBP or the machine description.  We've
+			 * actually probed this information already long before
+			 * this interface gets called so instead of interrogating
+			 * both the OF node and the MDESC again, just use what
+			 * we discovered already.
+			 */
+			if (proc_id < 0)
+				proc_id = 0;
+			*thread = proc_id;
+		}
+		return true;
+	}
+	return false;
+}
+
 static void *of_iterate_over_cpus(void *(*func)(struct device_node *, int, int), int arg)
 {
 	struct device_node *dp;
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 7d4c70f859e3..e4c99453adf1 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -280,6 +280,31 @@ static bool __of_find_n_match_cpu_property(struct device_node *cpun,
 	return false;
 }
 
+/*
+ * arch_find_n_match_cpu_physical_id - See if the given device node is
+ * for the cpu corresponding to logical cpu 'cpu'.  Return true if so,
+ * else false.  If 'thread' is non-NULL, the local thread number within the
+ * core is returned in it.
+ */
+bool __weak arch_find_n_match_cpu_physical_id(struct device_node *cpun,
+					      int cpu, unsigned int *thread)
+{
+	/* Check for non-standard "ibm,ppc-interrupt-server#s" property
+	 * for thread ids on PowerPC. If it doesn't exist fallback to
+	 * standard "reg" property.
+	 */
+	if (IS_ENABLED(CONFIG_PPC) &&
+	    __of_find_n_match_cpu_property(cpun,
+					   "ibm,ppc-interrupt-server#s",
+					   cpu, thread))
+		return true;
+
+	if (__of_find_n_match_cpu_property(cpun, "reg", cpu, thread))
+		return true;
+
+	return false;
+}
+
 /**
  * of_get_cpu_node - Get device node associated with the given logical CPU
  *
@@ -300,24 +325,10 @@ static bool __of_find_n_match_cpu_property(struct device_node *cpun,
  */
 struct device_node *of_get_cpu_node(int cpu, unsigned int *thread)
 {
-	struct device_node *cpun, *cpus;
-
-	cpus = of_find_node_by_path("/cpus");
-	if (!cpus)
-		return NULL;
+	struct device_node *cpun;
 
-	for_each_child_of_node(cpus, cpun) {
-		if (of_node_cmp(cpun->type, "cpu"))
-			continue;
-		/* Check for non-standard "ibm,ppc-interrupt-server#s" property
-		 * for thread ids on PowerPC. If it doesn't exist fallback to
-		 * standard "reg" property.
-		 */
-		if (IS_ENABLED(CONFIG_PPC) &&
-			__of_find_n_match_cpu_property(cpun,
-				"ibm,ppc-interrupt-server#s", cpu, thread))
-			return cpun;
-		if (__of_find_n_match_cpu_property(cpun, "reg", cpu, thread))
+	for_each_node_by_type(cpun, "cpu") {
+		if (arch_find_n_match_cpu_physical_id(cpun, cpu, thread))
 			return cpun;
 	}
 	return NULL;
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index 801ff9e73679..fbd25c3c2923 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -18,6 +18,7 @@
 #include <linux/cpumask.h>
 
 struct device;
+struct device_node;
 
 struct cpu {
 	int node_id;		/* The node which contains the CPU */
@@ -29,6 +30,8 @@ extern int register_cpu(struct cpu *cpu, int num);
 extern struct device *get_cpu_device(unsigned cpu);
 extern bool cpu_is_hotpluggable(unsigned cpu);
 extern bool arch_match_cpu_phys_id(int cpu, u64 phys_id);
+extern bool arch_find_n_match_cpu_physical_id(struct device_node *cpun,
+					      int cpu, unsigned int *thread);
 
 extern int cpu_add_dev_attr(struct device_attribute *attr);
 extern void cpu_remove_dev_attr(struct device_attribute *attr);
-- 
cgit 


From f3cea45a77c8ebdb7efad100e576eb6cb401bf25 Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Fri, 4 Oct 2013 17:24:26 +0100
Subject: of: Fix iteration bug over CPU reg properties

The size of each hwid in a cpu nodes 'reg' property is defined by the
parents #address-cells property in the normal way. The cpu parsing code
has a bug where it will overrun the end of the property if
address-cells is greater than one. This commit fixes the problem by
adjusting the array size by the number of address cells. It also makes
sure address-cells isn't zero for that would cause an infinite loop.

v2: bail if #address-cells is zero instead of forcing to
    OF_ROOT_NODE_ADDR_CELLS_DEFAULT. Forcing it will cause the reg
    property to be parsed incorrectly.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 drivers/of/base.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/of/base.c b/drivers/of/base.c
index e4c99453adf1..3ae106d89791 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -265,9 +265,9 @@ static bool __of_find_n_match_cpu_property(struct device_node *cpun,
 
 	ac = of_n_addr_cells(cpun);
 	cell = of_get_property(cpun, prop_name, &prop_len);
-	if (!cell)
+	if (!cell || !ac)
 		return false;
-	prop_len /= sizeof(*cell);
+	prop_len /= sizeof(*cell) * ac;
 	for (tid = 0; tid < prop_len; tid++) {
 		hwid = of_read_number(cell, ac);
 		if (arch_match_cpu_phys_id(cpu, hwid)) {
-- 
cgit 


From 8804827b305dbc1c6e24f2b36f1df4a9856b80e8 Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Thu, 19 Sep 2013 11:01:52 -0500
Subject: of: Fix dereferencing node name in debug output to be safe

Several locations in the of_address and of_irq code dereference the
full_name parameter from a device_node pointer without checking if the
pointer is valid.  This patch switches to use of_node_full_name() which
always checks the pointer.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
---
 drivers/of/address.c | 6 +++---
 drivers/of/irq.c     | 8 ++++----
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/of/address.c b/drivers/of/address.c
index b55c21890760..71180b91bfbe 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -489,7 +489,7 @@ static u64 __of_translate_address(struct device_node *dev,
 	int na, ns, pna, pns;
 	u64 result = OF_BAD_ADDR;
 
-	pr_debug("OF: ** translation for device %s **\n", dev->full_name);
+	pr_debug("OF: ** translation for device %s **\n", of_node_full_name(dev));
 
 	/* Increase refcount at current level */
 	of_node_get(dev);
@@ -504,13 +504,13 @@ static u64 __of_translate_address(struct device_node *dev,
 	bus->count_cells(dev, &na, &ns);
 	if (!OF_CHECK_COUNTS(na, ns)) {
 		printk(KERN_ERR "prom_parse: Bad cell count for %s\n",
-		       dev->full_name);
+		       of_node_full_name(dev));
 		goto bail;
 	}
 	memcpy(addr, in_addr, na * 4);
 
 	pr_debug("OF: bus is %s (na=%d, ns=%d) on %s\n",
-	    bus->name, na, ns, parent->full_name);
+	    bus->name, na, ns, of_node_full_name(parent));
 	of_dump_addr("OF: translating address:", addr, na);
 
 	/* Translate */
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 1752988d6aa8..f5fa5d84aa06 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -102,7 +102,7 @@ int of_irq_map_raw(struct device_node *parent, const __be32 *intspec,
 	int imaplen, match, i;
 
 	pr_debug("of_irq_map_raw: par=%s,intspec=[0x%08x 0x%08x...],ointsize=%d\n",
-		 parent->full_name, be32_to_cpup(intspec),
+		 of_node_full_name(parent), be32_to_cpup(intspec),
 		 be32_to_cpup(intspec + 1), ointsize);
 
 	ipar = of_node_get(parent);
@@ -126,7 +126,7 @@ int of_irq_map_raw(struct device_node *parent, const __be32 *intspec,
 		goto fail;
 	}
 
-	pr_debug("of_irq_map_raw: ipar=%s, size=%d\n", ipar->full_name, intsize);
+	pr_debug("of_irq_map_raw: ipar=%s, size=%d\n", of_node_full_name(ipar), intsize);
 
 	if (ointsize != intsize)
 		return -EINVAL;
@@ -287,7 +287,7 @@ int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq
 	u32 intsize, intlen;
 	int res = -EINVAL;
 
-	pr_debug("of_irq_map_one: dev=%s, index=%d\n", device->full_name, index);
+	pr_debug("of_irq_map_one: dev=%s, index=%d\n", of_node_full_name(device), index);
 
 	/* OldWorld mac stuff is "special", handle out of line */
 	if (of_irq_workarounds & OF_IMAP_OLDWORLD_MAC)
@@ -355,7 +355,7 @@ int of_irq_to_resource(struct device_node *dev, int index, struct resource *r)
 
 		r->start = r->end = irq;
 		r->flags = IORESOURCE_IRQ;
-		r->name = name ? name : dev->full_name;
+		r->name = name ? name : of_node_full_name(dev);
 	}
 
 	return irq;
-- 
cgit 


From 4a43d686fe336cc0e955c4400ba4d3fcff788786 Mon Sep 17 00:00:00 2001
From: Tomasz Figa <tomasz.figa@gmail.com>
Date: Sat, 28 Sep 2013 19:52:51 +0200
Subject: of/irq: Pass trigger type in IRQ resource flags

Some drivers might rely on availability of trigger flags in IRQ
resource, for example to configure the hardware for particular interrupt
type. However current code creating IRQ resources from data in device
tree does not configure trigger flags in resulting resources.

This patch tries to solve the problem, based on the fact that
irq_of_parse_and_map() configures the trigger based on DT interrupt
specifier and IRQD_TRIGGER_* flags are consistent with IORESOURCE_IRQ_*,
and we can get correct trigger flags by calling irqd_get_trigger_type()
after mapping the interrupt.

Signed-off-by: Tomasz Figa <tomasz.figa@gmail.com>
[grant.likely: Merged the two assignments to r->flags]
Signed-off-by: Grant Likely <grant.likely@linaro.org>
---
 drivers/of/irq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index f5fa5d84aa06..90068f914911 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -354,7 +354,7 @@ int of_irq_to_resource(struct device_node *dev, int index, struct resource *r)
 					      &name);
 
 		r->start = r->end = irq;
-		r->flags = IORESOURCE_IRQ;
+		r->flags = IORESOURCE_IRQ | irqd_get_trigger_type(irq_get_irq_data(irq));
 		r->name = name ? name : of_node_full_name(dev);
 	}
 
-- 
cgit 


From 3685ebc4bd2fb7da18b44a993d6c555ae31e5472 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Mon, 14 Oct 2013 12:39:37 -0700
Subject: staging/mt29f_spinand: fix build error when ONDIEECC not enabled

Fix build error when CONFIG_MTD_SPINAND_ONDIEECC is not enabled
by moving an inline function outside of that #ifdef block.

drivers/staging/mt29f_spinand/mt29f_spinand.c: In function 'spinand_read_byte':
drivers/staging/mt29f_spinand/mt29f_spinand.c:665:9: error: implicit declaration of function 'mtd_to_state' [-Werror=implicit-function-declaration]
drivers/staging/mt29f_spinand/mt29f_spinand.c:665:32: warning: initialization makes pointer from integer without a cast [enabled by default]
drivers/staging/mt29f_spinand/mt29f_spinand.c: In function 'spinand_write_buf':
drivers/staging/mt29f_spinand/mt29f_spinand.c:700:32: warning: initialization makes pointer from integer without a cast [enabled by default]
drivers/staging/mt29f_spinand/mt29f_spinand.c: In function 'spinand_read_buf':
drivers/staging/mt29f_spinand/mt29f_spinand.c:707:32: warning: initialization makes pointer from integer without a cast [enabled by default]

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Kamlakant Patel <kamlakant.patel@broadcom.com>
Cc: Mona Anonuevo <manonuevo@micron.com>
Cc: linux-mtd@lists.infradead.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/mt29f_spinand/mt29f_spinand.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/mt29f_spinand/mt29f_spinand.c b/drivers/staging/mt29f_spinand/mt29f_spinand.c
index 564707947598..51dbc13e757f 100644
--- a/drivers/staging/mt29f_spinand/mt29f_spinand.c
+++ b/drivers/staging/mt29f_spinand/mt29f_spinand.c
@@ -28,9 +28,6 @@
 /*
  * OOB area specification layout:  Total 32 available free bytes.
  */
-#ifdef CONFIG_MTD_SPINAND_ONDIEECC
-static int enable_hw_ecc;
-static int enable_read_hw_ecc;
 
 static inline struct spinand_state *mtd_to_state(struct mtd_info *mtd)
 {
@@ -41,6 +38,10 @@ static inline struct spinand_state *mtd_to_state(struct mtd_info *mtd)
 	return state;
 }
 
+#ifdef CONFIG_MTD_SPINAND_ONDIEECC
+static int enable_hw_ecc;
+static int enable_read_hw_ecc;
+
 static struct nand_ecclayout spinand_oob_64 = {
 	.eccbytes = 24,
 	.eccpos = {
-- 
cgit 


From fcd70b4b08d46e135d51978404da46f12dc9ccbd Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Tue, 15 Oct 2013 12:22:15 -0700
Subject: Revert "staging/olpc: fix dependencies to fix build errors"

This reverts commit 6170155d4affa14eb13cb789623d54baba2bf241.

It isn't correct.

Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Daniel Drake <dsd@laptop.org>
Cc: Jens Frederich <jfrederich@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/olpc_dcon/Kconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/staging/olpc_dcon/Kconfig b/drivers/staging/olpc_dcon/Kconfig
index 28aa42c77a9f..2ff015d84509 100644
--- a/drivers/staging/olpc_dcon/Kconfig
+++ b/drivers/staging/olpc_dcon/Kconfig
@@ -1,7 +1,6 @@
 config FB_OLPC_DCON
 	tristate "One Laptop Per Child Display CONtroller support"
 	depends on OLPC && FB
-	depends on (GPIO_CS5535 || GPIO_CS5535=n)
 	select I2C
 	select BACKLIGHT_CLASS_DEVICE
 	---help---
-- 
cgit 


From d6ae99d04e1cca3aa4696cc1b1b90542198e2d0a Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Sun, 13 Oct 2013 12:30:00 -0700
Subject: staging/olpc_dcon: fix kconfig to fix build errors

Fix build errors when GPIO_CS5535=m and FB_OLPC_DCON=y
by preventing that kconfig combination.

These build errors are caused by having a kconfig bool symbol
(FB_OLPC_DCON_1) that depend on a tristate symbol (GPIO_CS5535),
but when the tristate symbol is =m, the bool symbol is =y.

  drivers/built-in.o: In function `dcon_read_status_xo_1':
  olpc_dcon_xo_1.c:(.text+0x359531): undefined reference to `cs5535_gpio_set'
  drivers/built-in.o: In function `dcon_wiggle_xo_1':
  olpc_dcon_xo_1.c:(.text+0x35959f): undefined reference to `cs5535_gpio_set'
  olpc_dcon_xo_1.c:(.text+0x359610): undefined reference to `cs5535_gpio_clear'
  drivers/built-in.o:olpc_dcon_xo_1.c:(.text+0x3596a1): more undefined references to `cs5535_gpio_clear' follow
  drivers/built-in.o: In function `dcon_wiggle_xo_1':
  olpc_dcon_xo_1.c:(.text+0x359708): undefined reference to `cs5535_gpio_set'
  drivers/built-in.o: In function `dcon_init_xo_1':
  olpc_dcon_xo_1.c:(.text+0x35989b): undefined reference to `cs5535_gpio_clear'
  olpc_dcon_xo_1.c:(.text+0x3598b5): undefined reference to `cs5535_gpio_isset'
  olpc_dcon_xo_1.c:(.text+0x359963): undefined reference to `cs5535_gpio_setup_event'
  olpc_dcon_xo_1.c:(.text+0x359980): undefined reference to `cs5535_gpio_set_irq'
  olpc_dcon_xo_1.c:(.text+0x359a36): undefined reference to `cs5535_gpio_set'

However, adding GPIO_CS5535 to the Kconfig dependencies also creates
a kconfig recursive dependency error on powerpc:
  drivers/i2c/Kconfig:5:error: recursive dependency detected!
  drivers/i2c/Kconfig:5:	symbol I2C is selected by FB_OLPC_DCON
  drivers/staging/olpc_dcon/Kconfig:1:	symbol FB_OLPC_DCON depends on GPIO_CS5535
  drivers/gpio/Kconfig:577:	symbol GPIO_CS5535 depends on GPIOLIB
  drivers/gpio/Kconfig:38:	symbol GPIOLIB is selected by ARCH_REQUIRE_GPIOLIB
  drivers/gpio/Kconfig:23:	symbol ARCH_REQUIRE_GPIOLIB is selected by MCU_MPC8349EMITX
  arch/powerpc/platforms/Kconfig:351:	symbol MCU_MPC8349EMITX depends on I2C

This is due to FB_OLPC_DCON selecting I2C instead of depending on it,
so change the select to a dependency.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc:	Daniel Drake <dsd@laptop.org>
Cc:	Jens Frederich <jfrederich@gmail.com>
Cc:	Jon Nettleton <jon.nettleton@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/olpc_dcon/Kconfig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/olpc_dcon/Kconfig b/drivers/staging/olpc_dcon/Kconfig
index 2ff015d84509..d277f048789e 100644
--- a/drivers/staging/olpc_dcon/Kconfig
+++ b/drivers/staging/olpc_dcon/Kconfig
@@ -1,7 +1,8 @@
 config FB_OLPC_DCON
 	tristate "One Laptop Per Child Display CONtroller support"
 	depends on OLPC && FB
-	select I2C
+	depends on I2C
+	depends on (GPIO_CS5535 || GPIO_CS5535=n)
 	select BACKLIGHT_CLASS_DEVICE
 	---help---
 	  In order to support very low power operation, the XO laptop uses a
-- 
cgit 


From 2db0083d90eb773025af0cf148570a217699b459 Mon Sep 17 00:00:00 2001
From: Archana kumari <archanakumari959@gmail.com>
Date: Tue, 15 Oct 2013 23:42:14 +0530
Subject: staging:netlogic:Fixes commenting style in xlr_net.c

Fixes commenting style in xlr_net.c mentioned in
drivers:staging:netlogic:TODO file

Signed-off-by: Archana kumari <archanakumari959@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/netlogic/xlr_net.c | 34 ++++++++++++++++++++++------------
 1 file changed, 22 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/netlogic/xlr_net.c b/drivers/staging/netlogic/xlr_net.c
index 46eabd0e426a..235d2b1ec593 100644
--- a/drivers/staging/netlogic/xlr_net.c
+++ b/drivers/staging/netlogic/xlr_net.c
@@ -44,8 +44,8 @@
 #include <linux/platform_device.h>
 
 #include <asm/mipsregs.h>
-
-/* fmn.h - For FMN credit configuration and registering fmn_handler.
+/*
+ * fmn.h - For FMN credit configuration and registering fmn_handler.
  * FMN is communication mechanism that allows processing agents within
  * XLR/XLS to communicate each other.
  */
@@ -90,7 +90,8 @@ static inline struct sk_buff *mac_get_skb_back_ptr(void *addr)
 {
 	struct sk_buff **back_ptr;
 
-	/* this function should be used only for newly allocated packets.
+	/*
+	 * this function should be used only for newly allocated packets.
 	 * It assumes the first cacheline is for the back pointer related
 	 * book keeping info.
 	 */
@@ -102,7 +103,8 @@ static inline void mac_put_skb_back_ptr(struct sk_buff *skb)
 {
 	struct sk_buff **back_ptr = (struct sk_buff **)skb->data;
 
-	/* this function should be used only for newly allocated packets.
+	/*
+	 * this function should be used only for newly allocated packets.
 	 * It assumes the first cacheline is for the back pointer related
 	 * book keeping info.
 	 */
@@ -500,8 +502,10 @@ static void xlr_config_fifo_spill_area(struct xlr_net_priv *priv)
 			sizeof(u64));
 }
 
-/* Configure PDE to Round-Robin distribution of packets to the
- * available cpu */
+/*
+ * Configure PDE to Round-Robin distribution of packets to the
+ * available cpu
+ */
 static void xlr_config_pde(struct xlr_net_priv *priv)
 {
 	int i = 0;
@@ -528,8 +532,10 @@ static void xlr_config_pde(struct xlr_net_priv *priv)
 			((bkt_map >> 32) & 0xffffffff));
 }
 
-/* Setup the Message ring credits, bucket size and other
- * common configuration */
+/*
+ * Setup the Message ring credits, bucket size and other
+ * common configuration
+ */
 static void xlr_config_common(struct xlr_net_priv *priv)
 {
 	struct xlr_fmn_info *gmac = priv->nd->gmac_fmn_info;
@@ -545,8 +551,10 @@ static void xlr_config_common(struct xlr_net_priv *priv)
 				bucket_size[i]);
 	}
 
-	/* Setting non-core Credit counter register
-	 * Distributing Gmac's credit to CPU's*/
+	/*
+	 * Setting non-core Credit counter register
+	 * Distributing Gmac's credit to CPU's
+	 */
 	for (i = 0; i < 8; i++) {
 		for (j = 0; j < 8; j++)
 			xlr_nae_wreg(priv->base_addr,
@@ -593,7 +601,8 @@ static void xlr_config_translate_table(struct xlr_net_priv *priv)
 	c1 = 3;
 	c2 = 0;
 	for (i = 0; i < 64; i++) {
-		/* On use_bkt set the b0, b1 are used, else
+		/*
+		 * On use_bkt set the b0, b1 are used, else
 		 * the 4 classes are used, here implemented
 		 * a logic to distribute the packets to the
 		 * buckets equally or based on the class
@@ -736,7 +745,8 @@ static int xlr_mii_read(struct mii_bus *bus, int phy_addr, int regnum)
 	return ret;
 }
 
-/* XLR ports are RGMII. XLS ports are SGMII mostly except the port0,
+/*
+ * XLR ports are RGMII. XLS ports are SGMII mostly except the port0,
  * which can be configured either SGMII or RGMII, considered SGMII
  * by default, if board setup to RGMII the port_type need to set
  * accordingly.Serdes and PCS layer need to configured for SGMII
-- 
cgit 


From 4102adab9189c8ea2f0cdd2f88345fd25d2790f1 Mon Sep 17 00:00:00 2001
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Date: Tue, 8 Oct 2013 20:23:47 -0700
Subject: rcu: Move RCU-related source code to kernel/rcu directory

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
---
 Documentation/DocBook/device-drivers.tmpl |    5 +-
 Documentation/kernel-parameters.txt       |   95 +-
 MAINTAINERS                               |   11 +-
 kernel/Makefile                           |   11 +-
 kernel/rcu.h                              |  132 --
 kernel/rcu/Makefile                       |    6 +
 kernel/rcu/rcu.h                          |  132 ++
 kernel/rcu/srcu.c                         |  651 ++++++
 kernel/rcu/tiny.c                         |  388 ++++
 kernel/rcu/tiny_plugin.h                  |  174 ++
 kernel/rcu/torture.c                      | 2145 ++++++++++++++++++
 kernel/rcu/tree.c                         | 3403 +++++++++++++++++++++++++++++
 kernel/rcu/tree.h                         |  585 +++++
 kernel/rcu/tree_plugin.h                  | 2831 ++++++++++++++++++++++++
 kernel/rcu/tree_trace.c                   |  500 +++++
 kernel/rcu/update.c                       |  347 +++
 kernel/rcupdate.c                         |  341 ---
 kernel/rcutiny.c                          |  388 ----
 kernel/rcutiny_plugin.h                   |  174 --
 kernel/rcutorture.c                       | 2139 ------------------
 kernel/rcutree.c                          | 3396 ----------------------------
 kernel/rcutree.h                          |  585 -----
 kernel/rcutree_plugin.h                   | 2831 ------------------------
 kernel/rcutree_trace.c                    |  500 -----
 kernel/srcu.c                             |  651 ------
 25 files changed, 11232 insertions(+), 11189 deletions(-)
 delete mode 100644 kernel/rcu.h
 create mode 100644 kernel/rcu/Makefile
 create mode 100644 kernel/rcu/rcu.h
 create mode 100644 kernel/rcu/srcu.c
 create mode 100644 kernel/rcu/tiny.c
 create mode 100644 kernel/rcu/tiny_plugin.h
 create mode 100644 kernel/rcu/torture.c
 create mode 100644 kernel/rcu/tree.c
 create mode 100644 kernel/rcu/tree.h
 create mode 100644 kernel/rcu/tree_plugin.h
 create mode 100644 kernel/rcu/tree_trace.c
 create mode 100644 kernel/rcu/update.c
 delete mode 100644 kernel/rcupdate.c
 delete mode 100644 kernel/rcutiny.c
 delete mode 100644 kernel/rcutiny_plugin.h
 delete mode 100644 kernel/rcutorture.c
 delete mode 100644 kernel/rcutree.c
 delete mode 100644 kernel/rcutree.h
 delete mode 100644 kernel/rcutree_plugin.h
 delete mode 100644 kernel/rcutree_trace.c
 delete mode 100644 kernel/srcu.c

diff --git a/Documentation/DocBook/device-drivers.tmpl b/Documentation/DocBook/device-drivers.tmpl
index fe397f90a34f..6c9d9d37c83a 100644
--- a/Documentation/DocBook/device-drivers.tmpl
+++ b/Documentation/DocBook/device-drivers.tmpl
@@ -87,7 +87,10 @@ X!Iinclude/linux/kobject.h
 !Ekernel/printk/printk.c
 !Ekernel/panic.c
 !Ekernel/sys.c
-!Ekernel/rcupdate.c
+!Ekernel/rcu/srcu.c
+!Ekernel/rcu/tree.c
+!Ekernel/rcu/tree_plugin.h
+!Ekernel/rcu/update.c
      </sect1>
 
      <sect1><title>Device Resource Management</title>
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 1a036cd972fb..c3dc13e90a40 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -2595,7 +2595,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 	ramdisk_size=	[RAM] Sizes of RAM disks in kilobytes
 			See Documentation/blockdev/ramdisk.txt.
 
-	rcu_nocbs=	[KNL,BOOT]
+	rcu_nocbs=	[KNL]
 			In kernels built with CONFIG_RCU_NOCB_CPU=y, set
 			the specified list of CPUs to be no-callback CPUs.
 			Invocation of these CPUs' RCU callbacks will
@@ -2608,7 +2608,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			real-time workloads.  It can also improve energy
 			efficiency for asymmetric multiprocessors.
 
-	rcu_nocb_poll	[KNL,BOOT]
+	rcu_nocb_poll	[KNL]
 			Rather than requiring that offloaded CPUs
 			(specified by rcu_nocbs= above) explicitly
 			awaken the corresponding "rcuoN" kthreads,
@@ -2619,126 +2619,145 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			energy efficiency by requiring that the kthreads
 			periodically wake up to do the polling.
 
-	rcutree.blimit=	[KNL,BOOT]
+	rcutree.blimit=	[KNL]
 			Set maximum number of finished RCU callbacks to process
 			in one batch.
 
-	rcutree.fanout_leaf=	[KNL,BOOT]
+	rcutree.rcu_fanout_leaf= [KNL]
 			Increase the number of CPUs assigned to each
 			leaf rcu_node structure.  Useful for very large
 			systems.
 
-	rcutree.jiffies_till_first_fqs= [KNL,BOOT]
+	rcutree.jiffies_till_first_fqs= [KNL]
 			Set delay from grace-period initialization to
 			first attempt to force quiescent states.
 			Units are jiffies, minimum value is zero,
 			and maximum value is HZ.
 
-	rcutree.jiffies_till_next_fqs= [KNL,BOOT]
+	rcutree.jiffies_till_next_fqs= [KNL]
 			Set delay between subsequent attempts to force
 			quiescent states.  Units are jiffies, minimum
 			value is one, and maximum value is HZ.
 
-	rcutree.qhimark=	[KNL,BOOT]
+	rcutree.qhimark= [KNL]
 			Set threshold of queued
 			RCU callbacks over which batch limiting is disabled.
 
-	rcutree.qlowmark=	[KNL,BOOT]
+	rcutree.qlowmark= [KNL]
 			Set threshold of queued RCU callbacks below which
 			batch limiting is re-enabled.
 
-	rcutree.rcu_cpu_stall_suppress=	[KNL,BOOT]
-			Suppress RCU CPU stall warning messages.
-
-	rcutree.rcu_cpu_stall_timeout= [KNL,BOOT]
-			Set timeout for RCU CPU stall warning messages.
-
-	rcutree.rcu_idle_gp_delay=	[KNL,BOOT]
+	rcutree.rcu_idle_gp_delay= [KNL]
 			Set wakeup interval for idle CPUs that have
 			RCU callbacks (RCU_FAST_NO_HZ=y).
 
-	rcutree.rcu_idle_lazy_gp_delay=	[KNL,BOOT]
+	rcutree.rcu_idle_lazy_gp_delay= [KNL]
 			Set wakeup interval for idle CPUs that have
 			only "lazy" RCU callbacks (RCU_FAST_NO_HZ=y).
 			Lazy RCU callbacks are those which RCU can
 			prove do nothing more than free memory.
 
-	rcutorture.fqs_duration= [KNL,BOOT]
+	rcutorture.fqs_duration= [KNL]
 			Set duration of force_quiescent_state bursts.
 
-	rcutorture.fqs_holdoff= [KNL,BOOT]
+	rcutorture.fqs_holdoff= [KNL]
 			Set holdoff time within force_quiescent_state bursts.
 
-	rcutorture.fqs_stutter= [KNL,BOOT]
+	rcutorture.fqs_stutter= [KNL]
 			Set wait time between force_quiescent_state bursts.
 
-	rcutorture.irqreader= [KNL,BOOT]
-			Test RCU readers from irq handlers.
+	rcutorture.gp_exp= [KNL]
+			Use expedited update-side primitives.
+
+	rcutorture.gp_normal= [KNL]
+			Use normal (non-expedited) update-side primitives.
+			If both gp_exp and gp_normal are set, do both.
+			If neither gp_exp nor gp_normal are set, still
+			do both.
 
-	rcutorture.n_barrier_cbs= [KNL,BOOT]
+	rcutorture.n_barrier_cbs= [KNL]
 			Set callbacks/threads for rcu_barrier() testing.
 
-	rcutorture.nfakewriters= [KNL,BOOT]
+	rcutorture.nfakewriters= [KNL]
 			Set number of concurrent RCU writers.  These just
 			stress RCU, they don't participate in the actual
 			test, hence the "fake".
 
-	rcutorture.nreaders= [KNL,BOOT]
+	rcutorture.nreaders= [KNL]
 			Set number of RCU readers.
 
-	rcutorture.onoff_holdoff= [KNL,BOOT]
+	rcutorture.object_debug= [KNL]
+			Enable debug-object double-call_rcu() testing.
+
+	rcutorture.onoff_holdoff= [KNL]
 			Set time (s) after boot for CPU-hotplug testing.
 
-	rcutorture.onoff_interval= [KNL,BOOT]
+	rcutorture.onoff_interval= [KNL]
 			Set time (s) between CPU-hotplug operations, or
 			zero to disable CPU-hotplug testing.
 
-	rcutorture.shuffle_interval= [KNL,BOOT]
+	rcutorture.rcutorture_runnable= [BOOT]
+			Start rcutorture running at boot time.
+
+	rcutorture.shuffle_interval= [KNL]
 			Set task-shuffle interval (s).  Shuffling tasks
 			allows some CPUs to go into dyntick-idle mode
 			during the rcutorture test.
 
-	rcutorture.shutdown_secs= [KNL,BOOT]
+	rcutorture.shutdown_secs= [KNL]
 			Set time (s) after boot system shutdown.  This
 			is useful for hands-off automated testing.
 
-	rcutorture.stall_cpu= [KNL,BOOT]
+	rcutorture.stall_cpu= [KNL]
 			Duration of CPU stall (s) to test RCU CPU stall
 			warnings, zero to disable.
 
-	rcutorture.stall_cpu_holdoff= [KNL,BOOT]
+	rcutorture.stall_cpu_holdoff= [KNL]
 			Time to wait (s) after boot before inducing stall.
 
-	rcutorture.stat_interval= [KNL,BOOT]
+	rcutorture.stat_interval= [KNL]
 			Time (s) between statistics printk()s.
 
-	rcutorture.stutter= [KNL,BOOT]
+	rcutorture.stutter= [KNL]
 			Time (s) to stutter testing, for example, specifying
 			five seconds causes the test to run for five seconds,
 			wait for five seconds, and so on.  This tests RCU's
 			ability to transition abruptly to and from idle.
 
-	rcutorture.test_boost= [KNL,BOOT]
+	rcutorture.test_boost= [KNL]
 			Test RCU priority boosting?  0=no, 1=maybe, 2=yes.
 			"Maybe" means test if the RCU implementation
 			under test support RCU priority boosting.
 
-	rcutorture.test_boost_duration= [KNL,BOOT]
+	rcutorture.test_boost_duration= [KNL]
 			Duration (s) of each individual boost test.
 
-	rcutorture.test_boost_interval= [KNL,BOOT]
+	rcutorture.test_boost_interval= [KNL]
 			Interval (s) between each boost test.
 
-	rcutorture.test_no_idle_hz= [KNL,BOOT]
+	rcutorture.test_no_idle_hz= [KNL]
 			Test RCU's dyntick-idle handling.  See also the
 			rcutorture.shuffle_interval parameter.
 
-	rcutorture.torture_type= [KNL,BOOT]
+	rcutorture.torture_type= [KNL]
 			Specify the RCU implementation to test.
 
-	rcutorture.verbose= [KNL,BOOT]
+	rcutorture.verbose= [KNL]
 			Enable additional printk() statements.
 
+	rcupdate.rcu_expedited= [KNL]
+			Use expedited grace-period primitives, for
+			example, synchronize_rcu_expedited() instead
+			of synchronize_rcu().  This reduces latency,
+			but can increase CPU utilization, degrade
+			real-time latency, and degrade energy efficiency.
+
+	rcupdate.rcu_cpu_stall_suppress= [KNL]
+			Suppress RCU CPU stall warning messages.
+
+	rcupdate.rcu_cpu_stall_timeout= [KNL]
+			Set timeout for RCU CPU stall warning messages.
+
 	rdinit=		[KNL]
 			Format: <full_path>
 			Run specified binary instead of /init from the ramdisk,
diff --git a/MAINTAINERS b/MAINTAINERS
index e61c2e83fc2b..28f2478b6794 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6903,7 +6903,7 @@ M:	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
 S:	Supported
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
 F:	Documentation/RCU/torture.txt
-F:	kernel/rcutorture.c
+F:	kernel/rcu/torture.c
 
 RDC R-321X SoC
 M:	Florian Fainelli <florian@openwrt.org>
@@ -6930,8 +6930,9 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
 F:	Documentation/RCU/
 X:	Documentation/RCU/torture.txt
 F:	include/linux/rcu*
-F:	kernel/rcu*
-X:	kernel/rcutorture.c
+X:	include/linux/srcu.h
+F:	kernel/rcu/
+X:	kernel/rcu/torture.c
 
 REAL TIME CLOCK (RTC) SUBSYSTEM
 M:	Alessandro Zummo <a.zummo@towertech.it>
@@ -7618,8 +7619,8 @@ M:	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
 W:	http://www.rdrop.com/users/paulmck/RCU/
 S:	Supported
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
-F:	include/linux/srcu*
-F:	kernel/srcu*
+F:	include/linux/srcu.h
+F:	kernel/rcu/srcu.c
 
 SMACK SECURITY MODULE
 M:	Casey Schaufler <casey@schaufler-ca.com>
diff --git a/kernel/Makefile b/kernel/Makefile
index 1ce47553fb02..f99d908b5550 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -6,9 +6,9 @@ obj-y     = fork.o exec_domain.o panic.o \
 	    cpu.o exit.o itimer.o time.o softirq.o resource.o \
 	    sysctl.o sysctl_binary.o capability.o ptrace.o timer.o user.o \
 	    signal.o sys.o kmod.o workqueue.o pid.o task_work.o \
-	    rcupdate.o extable.o params.o posix-timers.o \
+	    extable.o params.o posix-timers.o \
 	    kthread.o wait.o sys_ni.o posix-cpu-timers.o mutex.o \
-	    hrtimer.o rwsem.o nsproxy.o srcu.o semaphore.o \
+	    hrtimer.o rwsem.o nsproxy.o semaphore.o \
 	    notifier.o ksysfs.o cred.o reboot.o \
 	    async.o range.o groups.o lglock.o smpboot.o
 
@@ -27,6 +27,7 @@ obj-y += power/
 obj-y += printk/
 obj-y += cpu/
 obj-y += irq/
+obj-y += rcu/
 
 obj-$(CONFIG_CHECKPOINT_RESTORE) += kcmp.o
 obj-$(CONFIG_FREEZER) += freezer.o
@@ -81,12 +82,6 @@ obj-$(CONFIG_KGDB) += debug/
 obj-$(CONFIG_DETECT_HUNG_TASK) += hung_task.o
 obj-$(CONFIG_LOCKUP_DETECTOR) += watchdog.o
 obj-$(CONFIG_SECCOMP) += seccomp.o
-obj-$(CONFIG_RCU_TORTURE_TEST) += rcutorture.o
-obj-$(CONFIG_TREE_RCU) += rcutree.o
-obj-$(CONFIG_TREE_PREEMPT_RCU) += rcutree.o
-obj-$(CONFIG_TREE_RCU_TRACE) += rcutree_trace.o
-obj-$(CONFIG_TINY_RCU) += rcutiny.o
-obj-$(CONFIG_TINY_PREEMPT_RCU) += rcutiny.o
 obj-$(CONFIG_RELAY) += relay.o
 obj-$(CONFIG_SYSCTL) += utsname_sysctl.o
 obj-$(CONFIG_TASK_DELAY_ACCT) += delayacct.o
diff --git a/kernel/rcu.h b/kernel/rcu.h
deleted file mode 100644
index 7859a0a3951e..000000000000
--- a/kernel/rcu.h
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * Read-Copy Update definitions shared among RCU implementations.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright IBM Corporation, 2011
- *
- * Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
- */
-
-#ifndef __LINUX_RCU_H
-#define __LINUX_RCU_H
-
-#ifdef CONFIG_RCU_TRACE
-#define RCU_TRACE(stmt) stmt
-#else /* #ifdef CONFIG_RCU_TRACE */
-#define RCU_TRACE(stmt)
-#endif /* #else #ifdef CONFIG_RCU_TRACE */
-
-/*
- * Process-level increment to ->dynticks_nesting field.  This allows for
- * architectures that use half-interrupts and half-exceptions from
- * process context.
- *
- * DYNTICK_TASK_NEST_MASK defines a field of width DYNTICK_TASK_NEST_WIDTH
- * that counts the number of process-based reasons why RCU cannot
- * consider the corresponding CPU to be idle, and DYNTICK_TASK_NEST_VALUE
- * is the value used to increment or decrement this field.
- *
- * The rest of the bits could in principle be used to count interrupts,
- * but this would mean that a negative-one value in the interrupt
- * field could incorrectly zero out the DYNTICK_TASK_NEST_MASK field.
- * We therefore provide a two-bit guard field defined by DYNTICK_TASK_MASK
- * that is set to DYNTICK_TASK_FLAG upon initial exit from idle.
- * The DYNTICK_TASK_EXIT_IDLE value is thus the combined value used upon
- * initial exit from idle.
- */
-#define DYNTICK_TASK_NEST_WIDTH 7
-#define DYNTICK_TASK_NEST_VALUE ((LLONG_MAX >> DYNTICK_TASK_NEST_WIDTH) + 1)
-#define DYNTICK_TASK_NEST_MASK  (LLONG_MAX - DYNTICK_TASK_NEST_VALUE + 1)
-#define DYNTICK_TASK_FLAG	   ((DYNTICK_TASK_NEST_VALUE / 8) * 2)
-#define DYNTICK_TASK_MASK	   ((DYNTICK_TASK_NEST_VALUE / 8) * 3)
-#define DYNTICK_TASK_EXIT_IDLE	   (DYNTICK_TASK_NEST_VALUE + \
-				    DYNTICK_TASK_FLAG)
-
-/*
- * debug_rcu_head_queue()/debug_rcu_head_unqueue() are used internally
- * by call_rcu() and rcu callback execution, and are therefore not part of the
- * RCU API. Leaving in rcupdate.h because they are used by all RCU flavors.
- */
-
-#ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD
-# define STATE_RCU_HEAD_READY	0
-# define STATE_RCU_HEAD_QUEUED	1
-
-extern struct debug_obj_descr rcuhead_debug_descr;
-
-static inline int debug_rcu_head_queue(struct rcu_head *head)
-{
-	int r1;
-
-	r1 = debug_object_activate(head, &rcuhead_debug_descr);
-	debug_object_active_state(head, &rcuhead_debug_descr,
-				  STATE_RCU_HEAD_READY,
-				  STATE_RCU_HEAD_QUEUED);
-	return r1;
-}
-
-static inline void debug_rcu_head_unqueue(struct rcu_head *head)
-{
-	debug_object_active_state(head, &rcuhead_debug_descr,
-				  STATE_RCU_HEAD_QUEUED,
-				  STATE_RCU_HEAD_READY);
-	debug_object_deactivate(head, &rcuhead_debug_descr);
-}
-#else	/* !CONFIG_DEBUG_OBJECTS_RCU_HEAD */
-static inline int debug_rcu_head_queue(struct rcu_head *head)
-{
-	return 0;
-}
-
-static inline void debug_rcu_head_unqueue(struct rcu_head *head)
-{
-}
-#endif	/* #else !CONFIG_DEBUG_OBJECTS_RCU_HEAD */
-
-extern void kfree(const void *);
-
-static inline bool __rcu_reclaim(const char *rn, struct rcu_head *head)
-{
-	unsigned long offset = (unsigned long)head->func;
-
-	if (__is_kfree_rcu_offset(offset)) {
-		RCU_TRACE(trace_rcu_invoke_kfree_callback(rn, head, offset));
-		kfree((void *)head - offset);
-		return 1;
-	} else {
-		RCU_TRACE(trace_rcu_invoke_callback(rn, head));
-		head->func(head);
-		return 0;
-	}
-}
-
-extern int rcu_expedited;
-
-#ifdef CONFIG_RCU_STALL_COMMON
-
-extern int rcu_cpu_stall_suppress;
-int rcu_jiffies_till_stall_check(void);
-
-#endif /* #ifdef CONFIG_RCU_STALL_COMMON */
-
-/*
- * Strings used in tracepoints need to be exported via the
- * tracing system such that tools like perf and trace-cmd can
- * translate the string address pointers to actual text.
- */
-#define TPS(x)  tracepoint_string(x)
-
-#endif /* __LINUX_RCU_H */
diff --git a/kernel/rcu/Makefile b/kernel/rcu/Makefile
new file mode 100644
index 000000000000..01e9ec37a3e3
--- /dev/null
+++ b/kernel/rcu/Makefile
@@ -0,0 +1,6 @@
+obj-y += update.o srcu.o
+obj-$(CONFIG_RCU_TORTURE_TEST) += torture.o
+obj-$(CONFIG_TREE_RCU) += tree.o
+obj-$(CONFIG_TREE_PREEMPT_RCU) += tree.o
+obj-$(CONFIG_TREE_RCU_TRACE) += tree_trace.o
+obj-$(CONFIG_TINY_RCU) += tiny.o
diff --git a/kernel/rcu/rcu.h b/kernel/rcu/rcu.h
new file mode 100644
index 000000000000..7859a0a3951e
--- /dev/null
+++ b/kernel/rcu/rcu.h
@@ -0,0 +1,132 @@
+/*
+ * Read-Copy Update definitions shared among RCU implementations.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright IBM Corporation, 2011
+ *
+ * Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+ */
+
+#ifndef __LINUX_RCU_H
+#define __LINUX_RCU_H
+
+#ifdef CONFIG_RCU_TRACE
+#define RCU_TRACE(stmt) stmt
+#else /* #ifdef CONFIG_RCU_TRACE */
+#define RCU_TRACE(stmt)
+#endif /* #else #ifdef CONFIG_RCU_TRACE */
+
+/*
+ * Process-level increment to ->dynticks_nesting field.  This allows for
+ * architectures that use half-interrupts and half-exceptions from
+ * process context.
+ *
+ * DYNTICK_TASK_NEST_MASK defines a field of width DYNTICK_TASK_NEST_WIDTH
+ * that counts the number of process-based reasons why RCU cannot
+ * consider the corresponding CPU to be idle, and DYNTICK_TASK_NEST_VALUE
+ * is the value used to increment or decrement this field.
+ *
+ * The rest of the bits could in principle be used to count interrupts,
+ * but this would mean that a negative-one value in the interrupt
+ * field could incorrectly zero out the DYNTICK_TASK_NEST_MASK field.
+ * We therefore provide a two-bit guard field defined by DYNTICK_TASK_MASK
+ * that is set to DYNTICK_TASK_FLAG upon initial exit from idle.
+ * The DYNTICK_TASK_EXIT_IDLE value is thus the combined value used upon
+ * initial exit from idle.
+ */
+#define DYNTICK_TASK_NEST_WIDTH 7
+#define DYNTICK_TASK_NEST_VALUE ((LLONG_MAX >> DYNTICK_TASK_NEST_WIDTH) + 1)
+#define DYNTICK_TASK_NEST_MASK  (LLONG_MAX - DYNTICK_TASK_NEST_VALUE + 1)
+#define DYNTICK_TASK_FLAG	   ((DYNTICK_TASK_NEST_VALUE / 8) * 2)
+#define DYNTICK_TASK_MASK	   ((DYNTICK_TASK_NEST_VALUE / 8) * 3)
+#define DYNTICK_TASK_EXIT_IDLE	   (DYNTICK_TASK_NEST_VALUE + \
+				    DYNTICK_TASK_FLAG)
+
+/*
+ * debug_rcu_head_queue()/debug_rcu_head_unqueue() are used internally
+ * by call_rcu() and rcu callback execution, and are therefore not part of the
+ * RCU API. Leaving in rcupdate.h because they are used by all RCU flavors.
+ */
+
+#ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD
+# define STATE_RCU_HEAD_READY	0
+# define STATE_RCU_HEAD_QUEUED	1
+
+extern struct debug_obj_descr rcuhead_debug_descr;
+
+static inline int debug_rcu_head_queue(struct rcu_head *head)
+{
+	int r1;
+
+	r1 = debug_object_activate(head, &rcuhead_debug_descr);
+	debug_object_active_state(head, &rcuhead_debug_descr,
+				  STATE_RCU_HEAD_READY,
+				  STATE_RCU_HEAD_QUEUED);
+	return r1;
+}
+
+static inline void debug_rcu_head_unqueue(struct rcu_head *head)
+{
+	debug_object_active_state(head, &rcuhead_debug_descr,
+				  STATE_RCU_HEAD_QUEUED,
+				  STATE_RCU_HEAD_READY);
+	debug_object_deactivate(head, &rcuhead_debug_descr);
+}
+#else	/* !CONFIG_DEBUG_OBJECTS_RCU_HEAD */
+static inline int debug_rcu_head_queue(struct rcu_head *head)
+{
+	return 0;
+}
+
+static inline void debug_rcu_head_unqueue(struct rcu_head *head)
+{
+}
+#endif	/* #else !CONFIG_DEBUG_OBJECTS_RCU_HEAD */
+
+extern void kfree(const void *);
+
+static inline bool __rcu_reclaim(const char *rn, struct rcu_head *head)
+{
+	unsigned long offset = (unsigned long)head->func;
+
+	if (__is_kfree_rcu_offset(offset)) {
+		RCU_TRACE(trace_rcu_invoke_kfree_callback(rn, head, offset));
+		kfree((void *)head - offset);
+		return 1;
+	} else {
+		RCU_TRACE(trace_rcu_invoke_callback(rn, head));
+		head->func(head);
+		return 0;
+	}
+}
+
+extern int rcu_expedited;
+
+#ifdef CONFIG_RCU_STALL_COMMON
+
+extern int rcu_cpu_stall_suppress;
+int rcu_jiffies_till_stall_check(void);
+
+#endif /* #ifdef CONFIG_RCU_STALL_COMMON */
+
+/*
+ * Strings used in tracepoints need to be exported via the
+ * tracing system such that tools like perf and trace-cmd can
+ * translate the string address pointers to actual text.
+ */
+#define TPS(x)  tracepoint_string(x)
+
+#endif /* __LINUX_RCU_H */
diff --git a/kernel/rcu/srcu.c b/kernel/rcu/srcu.c
new file mode 100644
index 000000000000..01d5ccb8bfe3
--- /dev/null
+++ b/kernel/rcu/srcu.c
@@ -0,0 +1,651 @@
+/*
+ * Sleepable Read-Copy Update mechanism for mutual exclusion.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2006
+ * Copyright (C) Fujitsu, 2012
+ *
+ * Author: Paul McKenney <paulmck@us.ibm.com>
+ *	   Lai Jiangshan <laijs@cn.fujitsu.com>
+ *
+ * For detailed explanation of Read-Copy Update mechanism see -
+ * 		Documentation/RCU/ *.txt
+ *
+ */
+
+#include <linux/export.h>
+#include <linux/mutex.h>
+#include <linux/percpu.h>
+#include <linux/preempt.h>
+#include <linux/rcupdate.h>
+#include <linux/sched.h>
+#include <linux/smp.h>
+#include <linux/delay.h>
+#include <linux/srcu.h>
+
+#include <trace/events/rcu.h>
+
+#include "rcu.h"
+
+/*
+ * Initialize an rcu_batch structure to empty.
+ */
+static inline void rcu_batch_init(struct rcu_batch *b)
+{
+	b->head = NULL;
+	b->tail = &b->head;
+}
+
+/*
+ * Enqueue a callback onto the tail of the specified rcu_batch structure.
+ */
+static inline void rcu_batch_queue(struct rcu_batch *b, struct rcu_head *head)
+{
+	*b->tail = head;
+	b->tail = &head->next;
+}
+
+/*
+ * Is the specified rcu_batch structure empty?
+ */
+static inline bool rcu_batch_empty(struct rcu_batch *b)
+{
+	return b->tail == &b->head;
+}
+
+/*
+ * Remove the callback at the head of the specified rcu_batch structure
+ * and return a pointer to it, or return NULL if the structure is empty.
+ */
+static inline struct rcu_head *rcu_batch_dequeue(struct rcu_batch *b)
+{
+	struct rcu_head *head;
+
+	if (rcu_batch_empty(b))
+		return NULL;
+
+	head = b->head;
+	b->head = head->next;
+	if (b->tail == &head->next)
+		rcu_batch_init(b);
+
+	return head;
+}
+
+/*
+ * Move all callbacks from the rcu_batch structure specified by "from" to
+ * the structure specified by "to".
+ */
+static inline void rcu_batch_move(struct rcu_batch *to, struct rcu_batch *from)
+{
+	if (!rcu_batch_empty(from)) {
+		*to->tail = from->head;
+		to->tail = from->tail;
+		rcu_batch_init(from);
+	}
+}
+
+static int init_srcu_struct_fields(struct srcu_struct *sp)
+{
+	sp->completed = 0;
+	spin_lock_init(&sp->queue_lock);
+	sp->running = false;
+	rcu_batch_init(&sp->batch_queue);
+	rcu_batch_init(&sp->batch_check0);
+	rcu_batch_init(&sp->batch_check1);
+	rcu_batch_init(&sp->batch_done);
+	INIT_DELAYED_WORK(&sp->work, process_srcu);
+	sp->per_cpu_ref = alloc_percpu(struct srcu_struct_array);
+	return sp->per_cpu_ref ? 0 : -ENOMEM;
+}
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+
+int __init_srcu_struct(struct srcu_struct *sp, const char *name,
+		       struct lock_class_key *key)
+{
+	/* Don't re-initialize a lock while it is held. */
+	debug_check_no_locks_freed((void *)sp, sizeof(*sp));
+	lockdep_init_map(&sp->dep_map, name, key, 0);
+	return init_srcu_struct_fields(sp);
+}
+EXPORT_SYMBOL_GPL(__init_srcu_struct);
+
+#else /* #ifdef CONFIG_DEBUG_LOCK_ALLOC */
+
+/**
+ * init_srcu_struct - initialize a sleep-RCU structure
+ * @sp: structure to initialize.
+ *
+ * Must invoke this on a given srcu_struct before passing that srcu_struct
+ * to any other function.  Each srcu_struct represents a separate domain
+ * of SRCU protection.
+ */
+int init_srcu_struct(struct srcu_struct *sp)
+{
+	return init_srcu_struct_fields(sp);
+}
+EXPORT_SYMBOL_GPL(init_srcu_struct);
+
+#endif /* #else #ifdef CONFIG_DEBUG_LOCK_ALLOC */
+
+/*
+ * Returns approximate total of the readers' ->seq[] values for the
+ * rank of per-CPU counters specified by idx.
+ */
+static unsigned long srcu_readers_seq_idx(struct srcu_struct *sp, int idx)
+{
+	int cpu;
+	unsigned long sum = 0;
+	unsigned long t;
+
+	for_each_possible_cpu(cpu) {
+		t = ACCESS_ONCE(per_cpu_ptr(sp->per_cpu_ref, cpu)->seq[idx]);
+		sum += t;
+	}
+	return sum;
+}
+
+/*
+ * Returns approximate number of readers active on the specified rank
+ * of the per-CPU ->c[] counters.
+ */
+static unsigned long srcu_readers_active_idx(struct srcu_struct *sp, int idx)
+{
+	int cpu;
+	unsigned long sum = 0;
+	unsigned long t;
+
+	for_each_possible_cpu(cpu) {
+		t = ACCESS_ONCE(per_cpu_ptr(sp->per_cpu_ref, cpu)->c[idx]);
+		sum += t;
+	}
+	return sum;
+}
+
+/*
+ * Return true if the number of pre-existing readers is determined to
+ * be stably zero.  An example unstable zero can occur if the call
+ * to srcu_readers_active_idx() misses an __srcu_read_lock() increment,
+ * but due to task migration, sees the corresponding __srcu_read_unlock()
+ * decrement.  This can happen because srcu_readers_active_idx() takes
+ * time to sum the array, and might in fact be interrupted or preempted
+ * partway through the summation.
+ */
+static bool srcu_readers_active_idx_check(struct srcu_struct *sp, int idx)
+{
+	unsigned long seq;
+
+	seq = srcu_readers_seq_idx(sp, idx);
+
+	/*
+	 * The following smp_mb() A pairs with the smp_mb() B located in
+	 * __srcu_read_lock().  This pairing ensures that if an
+	 * __srcu_read_lock() increments its counter after the summation
+	 * in srcu_readers_active_idx(), then the corresponding SRCU read-side
+	 * critical section will see any changes made prior to the start
+	 * of the current SRCU grace period.
+	 *
+	 * Also, if the above call to srcu_readers_seq_idx() saw the
+	 * increment of ->seq[], then the call to srcu_readers_active_idx()
+	 * must see the increment of ->c[].
+	 */
+	smp_mb(); /* A */
+
+	/*
+	 * Note that srcu_readers_active_idx() can incorrectly return
+	 * zero even though there is a pre-existing reader throughout.
+	 * To see this, suppose that task A is in a very long SRCU
+	 * read-side critical section that started on CPU 0, and that
+	 * no other reader exists, so that the sum of the counters
+	 * is equal to one.  Then suppose that task B starts executing
+	 * srcu_readers_active_idx(), summing up to CPU 1, and then that
+	 * task C starts reading on CPU 0, so that its increment is not
+	 * summed, but finishes reading on CPU 2, so that its decrement
+	 * -is- summed.  Then when task B completes its sum, it will
+	 * incorrectly get zero, despite the fact that task A has been
+	 * in its SRCU read-side critical section the whole time.
+	 *
+	 * We therefore do a validation step should srcu_readers_active_idx()
+	 * return zero.
+	 */
+	if (srcu_readers_active_idx(sp, idx) != 0)
+		return false;
+
+	/*
+	 * The remainder of this function is the validation step.
+	 * The following smp_mb() D pairs with the smp_mb() C in
+	 * __srcu_read_unlock().  If the __srcu_read_unlock() was seen
+	 * by srcu_readers_active_idx() above, then any destructive
+	 * operation performed after the grace period will happen after
+	 * the corresponding SRCU read-side critical section.
+	 *
+	 * Note that there can be at most NR_CPUS worth of readers using
+	 * the old index, which is not enough to overflow even a 32-bit
+	 * integer.  (Yes, this does mean that systems having more than
+	 * a billion or so CPUs need to be 64-bit systems.)  Therefore,
+	 * the sum of the ->seq[] counters cannot possibly overflow.
+	 * Therefore, the only way that the return values of the two
+	 * calls to srcu_readers_seq_idx() can be equal is if there were
+	 * no increments of the corresponding rank of ->seq[] counts
+	 * in the interim.  But the missed-increment scenario laid out
+	 * above includes an increment of the ->seq[] counter by
+	 * the corresponding __srcu_read_lock().  Therefore, if this
+	 * scenario occurs, the return values from the two calls to
+	 * srcu_readers_seq_idx() will differ, and thus the validation
+	 * step below suffices.
+	 */
+	smp_mb(); /* D */
+
+	return srcu_readers_seq_idx(sp, idx) == seq;
+}
+
+/**
+ * srcu_readers_active - returns approximate number of readers.
+ * @sp: which srcu_struct to count active readers (holding srcu_read_lock).
+ *
+ * Note that this is not an atomic primitive, and can therefore suffer
+ * severe errors when invoked on an active srcu_struct.  That said, it
+ * can be useful as an error check at cleanup time.
+ */
+static int srcu_readers_active(struct srcu_struct *sp)
+{
+	int cpu;
+	unsigned long sum = 0;
+
+	for_each_possible_cpu(cpu) {
+		sum += ACCESS_ONCE(per_cpu_ptr(sp->per_cpu_ref, cpu)->c[0]);
+		sum += ACCESS_ONCE(per_cpu_ptr(sp->per_cpu_ref, cpu)->c[1]);
+	}
+	return sum;
+}
+
+/**
+ * cleanup_srcu_struct - deconstruct a sleep-RCU structure
+ * @sp: structure to clean up.
+ *
+ * Must invoke this after you are finished using a given srcu_struct that
+ * was initialized via init_srcu_struct(), else you leak memory.
+ */
+void cleanup_srcu_struct(struct srcu_struct *sp)
+{
+	if (WARN_ON(srcu_readers_active(sp)))
+		return; /* Leakage unless caller handles error. */
+	free_percpu(sp->per_cpu_ref);
+	sp->per_cpu_ref = NULL;
+}
+EXPORT_SYMBOL_GPL(cleanup_srcu_struct);
+
+/*
+ * Counts the new reader in the appropriate per-CPU element of the
+ * srcu_struct.  Must be called from process context.
+ * Returns an index that must be passed to the matching srcu_read_unlock().
+ */
+int __srcu_read_lock(struct srcu_struct *sp)
+{
+	int idx;
+
+	idx = ACCESS_ONCE(sp->completed) & 0x1;
+	preempt_disable();
+	ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->c[idx]) += 1;
+	smp_mb(); /* B */  /* Avoid leaking the critical section. */
+	ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->seq[idx]) += 1;
+	preempt_enable();
+	return idx;
+}
+EXPORT_SYMBOL_GPL(__srcu_read_lock);
+
+/*
+ * Removes the count for the old reader from the appropriate per-CPU
+ * element of the srcu_struct.  Note that this may well be a different
+ * CPU than that which was incremented by the corresponding srcu_read_lock().
+ * Must be called from process context.
+ */
+void __srcu_read_unlock(struct srcu_struct *sp, int idx)
+{
+	smp_mb(); /* C */  /* Avoid leaking the critical section. */
+	this_cpu_dec(sp->per_cpu_ref->c[idx]);
+}
+EXPORT_SYMBOL_GPL(__srcu_read_unlock);
+
+/*
+ * We use an adaptive strategy for synchronize_srcu() and especially for
+ * synchronize_srcu_expedited().  We spin for a fixed time period
+ * (defined below) to allow SRCU readers to exit their read-side critical
+ * sections.  If there are still some readers after 10 microseconds,
+ * we repeatedly block for 1-millisecond time periods.  This approach
+ * has done well in testing, so there is no need for a config parameter.
+ */
+#define SRCU_RETRY_CHECK_DELAY		5
+#define SYNCHRONIZE_SRCU_TRYCOUNT	2
+#define SYNCHRONIZE_SRCU_EXP_TRYCOUNT	12
+
+/*
+ * @@@ Wait until all pre-existing readers complete.  Such readers
+ * will have used the index specified by "idx".
+ * the caller should ensures the ->completed is not changed while checking
+ * and idx = (->completed & 1) ^ 1
+ */
+static bool try_check_zero(struct srcu_struct *sp, int idx, int trycount)
+{
+	for (;;) {
+		if (srcu_readers_active_idx_check(sp, idx))
+			return true;
+		if (--trycount <= 0)
+			return false;
+		udelay(SRCU_RETRY_CHECK_DELAY);
+	}
+}
+
+/*
+ * Increment the ->completed counter so that future SRCU readers will
+ * use the other rank of the ->c[] and ->seq[] arrays.  This allows
+ * us to wait for pre-existing readers in a starvation-free manner.
+ */
+static void srcu_flip(struct srcu_struct *sp)
+{
+	sp->completed++;
+}
+
+/*
+ * Enqueue an SRCU callback on the specified srcu_struct structure,
+ * initiating grace-period processing if it is not already running.
+ */
+void call_srcu(struct srcu_struct *sp, struct rcu_head *head,
+		void (*func)(struct rcu_head *head))
+{
+	unsigned long flags;
+
+	head->next = NULL;
+	head->func = func;
+	spin_lock_irqsave(&sp->queue_lock, flags);
+	rcu_batch_queue(&sp->batch_queue, head);
+	if (!sp->running) {
+		sp->running = true;
+		schedule_delayed_work(&sp->work, 0);
+	}
+	spin_unlock_irqrestore(&sp->queue_lock, flags);
+}
+EXPORT_SYMBOL_GPL(call_srcu);
+
+struct rcu_synchronize {
+	struct rcu_head head;
+	struct completion completion;
+};
+
+/*
+ * Awaken the corresponding synchronize_srcu() instance now that a
+ * grace period has elapsed.
+ */
+static void wakeme_after_rcu(struct rcu_head *head)
+{
+	struct rcu_synchronize *rcu;
+
+	rcu = container_of(head, struct rcu_synchronize, head);
+	complete(&rcu->completion);
+}
+
+static void srcu_advance_batches(struct srcu_struct *sp, int trycount);
+static void srcu_reschedule(struct srcu_struct *sp);
+
+/*
+ * Helper function for synchronize_srcu() and synchronize_srcu_expedited().
+ */
+static void __synchronize_srcu(struct srcu_struct *sp, int trycount)
+{
+	struct rcu_synchronize rcu;
+	struct rcu_head *head = &rcu.head;
+	bool done = false;
+
+	rcu_lockdep_assert(!lock_is_held(&sp->dep_map) &&
+			   !lock_is_held(&rcu_bh_lock_map) &&
+			   !lock_is_held(&rcu_lock_map) &&
+			   !lock_is_held(&rcu_sched_lock_map),
+			   "Illegal synchronize_srcu() in same-type SRCU (or RCU) read-side critical section");
+
+	might_sleep();
+	init_completion(&rcu.completion);
+
+	head->next = NULL;
+	head->func = wakeme_after_rcu;
+	spin_lock_irq(&sp->queue_lock);
+	if (!sp->running) {
+		/* steal the processing owner */
+		sp->running = true;
+		rcu_batch_queue(&sp->batch_check0, head);
+		spin_unlock_irq(&sp->queue_lock);
+
+		srcu_advance_batches(sp, trycount);
+		if (!rcu_batch_empty(&sp->batch_done)) {
+			BUG_ON(sp->batch_done.head != head);
+			rcu_batch_dequeue(&sp->batch_done);
+			done = true;
+		}
+		/* give the processing owner to work_struct */
+		srcu_reschedule(sp);
+	} else {
+		rcu_batch_queue(&sp->batch_queue, head);
+		spin_unlock_irq(&sp->queue_lock);
+	}
+
+	if (!done)
+		wait_for_completion(&rcu.completion);
+}
+
+/**
+ * synchronize_srcu - wait for prior SRCU read-side critical-section completion
+ * @sp: srcu_struct with which to synchronize.
+ *
+ * Wait for the count to drain to zero of both indexes. To avoid the
+ * possible starvation of synchronize_srcu(), it waits for the count of
+ * the index=((->completed & 1) ^ 1) to drain to zero at first,
+ * and then flip the completed and wait for the count of the other index.
+ *
+ * Can block; must be called from process context.
+ *
+ * Note that it is illegal to call synchronize_srcu() from the corresponding
+ * SRCU read-side critical section; doing so will result in deadlock.
+ * However, it is perfectly legal to call synchronize_srcu() on one
+ * srcu_struct from some other srcu_struct's read-side critical section.
+ */
+void synchronize_srcu(struct srcu_struct *sp)
+{
+	__synchronize_srcu(sp, rcu_expedited
+			   ? SYNCHRONIZE_SRCU_EXP_TRYCOUNT
+			   : SYNCHRONIZE_SRCU_TRYCOUNT);
+}
+EXPORT_SYMBOL_GPL(synchronize_srcu);
+
+/**
+ * synchronize_srcu_expedited - Brute-force SRCU grace period
+ * @sp: srcu_struct with which to synchronize.
+ *
+ * Wait for an SRCU grace period to elapse, but be more aggressive about
+ * spinning rather than blocking when waiting.
+ *
+ * Note that it is also illegal to call synchronize_srcu_expedited()
+ * from the corresponding SRCU read-side critical section;
+ * doing so will result in deadlock.  However, it is perfectly legal
+ * to call synchronize_srcu_expedited() on one srcu_struct from some
+ * other srcu_struct's read-side critical section, as long as
+ * the resulting graph of srcu_structs is acyclic.
+ */
+void synchronize_srcu_expedited(struct srcu_struct *sp)
+{
+	__synchronize_srcu(sp, SYNCHRONIZE_SRCU_EXP_TRYCOUNT);
+}
+EXPORT_SYMBOL_GPL(synchronize_srcu_expedited);
+
+/**
+ * srcu_barrier - Wait until all in-flight call_srcu() callbacks complete.
+ */
+void srcu_barrier(struct srcu_struct *sp)
+{
+	synchronize_srcu(sp);
+}
+EXPORT_SYMBOL_GPL(srcu_barrier);
+
+/**
+ * srcu_batches_completed - return batches completed.
+ * @sp: srcu_struct on which to report batch completion.
+ *
+ * Report the number of batches, correlated with, but not necessarily
+ * precisely the same as, the number of grace periods that have elapsed.
+ */
+long srcu_batches_completed(struct srcu_struct *sp)
+{
+	return sp->completed;
+}
+EXPORT_SYMBOL_GPL(srcu_batches_completed);
+
+#define SRCU_CALLBACK_BATCH	10
+#define SRCU_INTERVAL		1
+
+/*
+ * Move any new SRCU callbacks to the first stage of the SRCU grace
+ * period pipeline.
+ */
+static void srcu_collect_new(struct srcu_struct *sp)
+{
+	if (!rcu_batch_empty(&sp->batch_queue)) {
+		spin_lock_irq(&sp->queue_lock);
+		rcu_batch_move(&sp->batch_check0, &sp->batch_queue);
+		spin_unlock_irq(&sp->queue_lock);
+	}
+}
+
+/*
+ * Core SRCU state machine.  Advance callbacks from ->batch_check0 to
+ * ->batch_check1 and then to ->batch_done as readers drain.
+ */
+static void srcu_advance_batches(struct srcu_struct *sp, int trycount)
+{
+	int idx = 1 ^ (sp->completed & 1);
+
+	/*
+	 * Because readers might be delayed for an extended period after
+	 * fetching ->completed for their index, at any point in time there
+	 * might well be readers using both idx=0 and idx=1.  We therefore
+	 * need to wait for readers to clear from both index values before
+	 * invoking a callback.
+	 */
+
+	if (rcu_batch_empty(&sp->batch_check0) &&
+	    rcu_batch_empty(&sp->batch_check1))
+		return; /* no callbacks need to be advanced */
+
+	if (!try_check_zero(sp, idx, trycount))
+		return; /* failed to advance, will try after SRCU_INTERVAL */
+
+	/*
+	 * The callbacks in ->batch_check1 have already done with their
+	 * first zero check and flip back when they were enqueued on
+	 * ->batch_check0 in a previous invocation of srcu_advance_batches().
+	 * (Presumably try_check_zero() returned false during that
+	 * invocation, leaving the callbacks stranded on ->batch_check1.)
+	 * They are therefore ready to invoke, so move them to ->batch_done.
+	 */
+	rcu_batch_move(&sp->batch_done, &sp->batch_check1);
+
+	if (rcu_batch_empty(&sp->batch_check0))
+		return; /* no callbacks need to be advanced */
+	srcu_flip(sp);
+
+	/*
+	 * The callbacks in ->batch_check0 just finished their
+	 * first check zero and flip, so move them to ->batch_check1
+	 * for future checking on the other idx.
+	 */
+	rcu_batch_move(&sp->batch_check1, &sp->batch_check0);
+
+	/*
+	 * SRCU read-side critical sections are normally short, so check
+	 * at least twice in quick succession after a flip.
+	 */
+	trycount = trycount < 2 ? 2 : trycount;
+	if (!try_check_zero(sp, idx^1, trycount))
+		return; /* failed to advance, will try after SRCU_INTERVAL */
+
+	/*
+	 * The callbacks in ->batch_check1 have now waited for all
+	 * pre-existing readers using both idx values.  They are therefore
+	 * ready to invoke, so move them to ->batch_done.
+	 */
+	rcu_batch_move(&sp->batch_done, &sp->batch_check1);
+}
+
+/*
+ * Invoke a limited number of SRCU callbacks that have passed through
+ * their grace period.  If there are more to do, SRCU will reschedule
+ * the workqueue.
+ */
+static void srcu_invoke_callbacks(struct srcu_struct *sp)
+{
+	int i;
+	struct rcu_head *head;
+
+	for (i = 0; i < SRCU_CALLBACK_BATCH; i++) {
+		head = rcu_batch_dequeue(&sp->batch_done);
+		if (!head)
+			break;
+		local_bh_disable();
+		head->func(head);
+		local_bh_enable();
+	}
+}
+
+/*
+ * Finished one round of SRCU grace period.  Start another if there are
+ * more SRCU callbacks queued, otherwise put SRCU into not-running state.
+ */
+static void srcu_reschedule(struct srcu_struct *sp)
+{
+	bool pending = true;
+
+	if (rcu_batch_empty(&sp->batch_done) &&
+	    rcu_batch_empty(&sp->batch_check1) &&
+	    rcu_batch_empty(&sp->batch_check0) &&
+	    rcu_batch_empty(&sp->batch_queue)) {
+		spin_lock_irq(&sp->queue_lock);
+		if (rcu_batch_empty(&sp->batch_done) &&
+		    rcu_batch_empty(&sp->batch_check1) &&
+		    rcu_batch_empty(&sp->batch_check0) &&
+		    rcu_batch_empty(&sp->batch_queue)) {
+			sp->running = false;
+			pending = false;
+		}
+		spin_unlock_irq(&sp->queue_lock);
+	}
+
+	if (pending)
+		schedule_delayed_work(&sp->work, SRCU_INTERVAL);
+}
+
+/*
+ * This is the work-queue function that handles SRCU grace periods.
+ */
+void process_srcu(struct work_struct *work)
+{
+	struct srcu_struct *sp;
+
+	sp = container_of(work, struct srcu_struct, work.work);
+
+	srcu_collect_new(sp);
+	srcu_advance_batches(sp, 1);
+	srcu_invoke_callbacks(sp);
+	srcu_reschedule(sp);
+}
+EXPORT_SYMBOL_GPL(process_srcu);
diff --git a/kernel/rcu/tiny.c b/kernel/rcu/tiny.c
new file mode 100644
index 000000000000..0c9a934cfec1
--- /dev/null
+++ b/kernel/rcu/tiny.c
@@ -0,0 +1,388 @@
+/*
+ * Read-Copy Update mechanism for mutual exclusion, the Bloatwatch edition.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright IBM Corporation, 2008
+ *
+ * Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+ *
+ * For detailed explanation of Read-Copy Update mechanism see -
+ *		Documentation/RCU
+ */
+#include <linux/completion.h>
+#include <linux/interrupt.h>
+#include <linux/notifier.h>
+#include <linux/rcupdate.h>
+#include <linux/kernel.h>
+#include <linux/export.h>
+#include <linux/mutex.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/time.h>
+#include <linux/cpu.h>
+#include <linux/prefetch.h>
+#include <linux/ftrace_event.h>
+
+#ifdef CONFIG_RCU_TRACE
+#include <trace/events/rcu.h>
+#endif /* #else #ifdef CONFIG_RCU_TRACE */
+
+#include "rcu.h"
+
+/* Forward declarations for tiny_plugin.h. */
+struct rcu_ctrlblk;
+static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp);
+static void rcu_process_callbacks(struct softirq_action *unused);
+static void __call_rcu(struct rcu_head *head,
+		       void (*func)(struct rcu_head *rcu),
+		       struct rcu_ctrlblk *rcp);
+
+static long long rcu_dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
+
+#include "tiny_plugin.h"
+
+/* Common code for rcu_idle_enter() and rcu_irq_exit(), see kernel/rcutree.c. */
+static void rcu_idle_enter_common(long long newval)
+{
+	if (newval) {
+		RCU_TRACE(trace_rcu_dyntick(TPS("--="),
+					    rcu_dynticks_nesting, newval));
+		rcu_dynticks_nesting = newval;
+		return;
+	}
+	RCU_TRACE(trace_rcu_dyntick(TPS("Start"),
+				    rcu_dynticks_nesting, newval));
+	if (!is_idle_task(current)) {
+		struct task_struct *idle __maybe_unused = idle_task(smp_processor_id());
+
+		RCU_TRACE(trace_rcu_dyntick(TPS("Entry error: not idle task"),
+					    rcu_dynticks_nesting, newval));
+		ftrace_dump(DUMP_ALL);
+		WARN_ONCE(1, "Current pid: %d comm: %s / Idle pid: %d comm: %s",
+			  current->pid, current->comm,
+			  idle->pid, idle->comm); /* must be idle task! */
+	}
+	rcu_sched_qs(0); /* implies rcu_bh_qsctr_inc(0) */
+	barrier();
+	rcu_dynticks_nesting = newval;
+}
+
+/*
+ * Enter idle, which is an extended quiescent state if we have fully
+ * entered that mode (i.e., if the new value of dynticks_nesting is zero).
+ */
+void rcu_idle_enter(void)
+{
+	unsigned long flags;
+	long long newval;
+
+	local_irq_save(flags);
+	WARN_ON_ONCE((rcu_dynticks_nesting & DYNTICK_TASK_NEST_MASK) == 0);
+	if ((rcu_dynticks_nesting & DYNTICK_TASK_NEST_MASK) ==
+	    DYNTICK_TASK_NEST_VALUE)
+		newval = 0;
+	else
+		newval = rcu_dynticks_nesting - DYNTICK_TASK_NEST_VALUE;
+	rcu_idle_enter_common(newval);
+	local_irq_restore(flags);
+}
+EXPORT_SYMBOL_GPL(rcu_idle_enter);
+
+/*
+ * Exit an interrupt handler towards idle.
+ */
+void rcu_irq_exit(void)
+{
+	unsigned long flags;
+	long long newval;
+
+	local_irq_save(flags);
+	newval = rcu_dynticks_nesting - 1;
+	WARN_ON_ONCE(newval < 0);
+	rcu_idle_enter_common(newval);
+	local_irq_restore(flags);
+}
+EXPORT_SYMBOL_GPL(rcu_irq_exit);
+
+/* Common code for rcu_idle_exit() and rcu_irq_enter(), see kernel/rcutree.c. */
+static void rcu_idle_exit_common(long long oldval)
+{
+	if (oldval) {
+		RCU_TRACE(trace_rcu_dyntick(TPS("++="),
+					    oldval, rcu_dynticks_nesting));
+		return;
+	}
+	RCU_TRACE(trace_rcu_dyntick(TPS("End"), oldval, rcu_dynticks_nesting));
+	if (!is_idle_task(current)) {
+		struct task_struct *idle __maybe_unused = idle_task(smp_processor_id());
+
+		RCU_TRACE(trace_rcu_dyntick(TPS("Exit error: not idle task"),
+			  oldval, rcu_dynticks_nesting));
+		ftrace_dump(DUMP_ALL);
+		WARN_ONCE(1, "Current pid: %d comm: %s / Idle pid: %d comm: %s",
+			  current->pid, current->comm,
+			  idle->pid, idle->comm); /* must be idle task! */
+	}
+}
+
+/*
+ * Exit idle, so that we are no longer in an extended quiescent state.
+ */
+void rcu_idle_exit(void)
+{
+	unsigned long flags;
+	long long oldval;
+
+	local_irq_save(flags);
+	oldval = rcu_dynticks_nesting;
+	WARN_ON_ONCE(rcu_dynticks_nesting < 0);
+	if (rcu_dynticks_nesting & DYNTICK_TASK_NEST_MASK)
+		rcu_dynticks_nesting += DYNTICK_TASK_NEST_VALUE;
+	else
+		rcu_dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
+	rcu_idle_exit_common(oldval);
+	local_irq_restore(flags);
+}
+EXPORT_SYMBOL_GPL(rcu_idle_exit);
+
+/*
+ * Enter an interrupt handler, moving away from idle.
+ */
+void rcu_irq_enter(void)
+{
+	unsigned long flags;
+	long long oldval;
+
+	local_irq_save(flags);
+	oldval = rcu_dynticks_nesting;
+	rcu_dynticks_nesting++;
+	WARN_ON_ONCE(rcu_dynticks_nesting == 0);
+	rcu_idle_exit_common(oldval);
+	local_irq_restore(flags);
+}
+EXPORT_SYMBOL_GPL(rcu_irq_enter);
+
+#if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE)
+
+/*
+ * Test whether RCU thinks that the current CPU is idle.
+ */
+bool __rcu_is_watching(void)
+{
+	return rcu_dynticks_nesting;
+}
+EXPORT_SYMBOL(__rcu_is_watching);
+
+#endif /* defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE) */
+
+/*
+ * Test whether the current CPU was interrupted from idle.  Nested
+ * interrupts don't count, we must be running at the first interrupt
+ * level.
+ */
+static int rcu_is_cpu_rrupt_from_idle(void)
+{
+	return rcu_dynticks_nesting <= 1;
+}
+
+/*
+ * Helper function for rcu_sched_qs() and rcu_bh_qs().
+ * Also irqs are disabled to avoid confusion due to interrupt handlers
+ * invoking call_rcu().
+ */
+static int rcu_qsctr_help(struct rcu_ctrlblk *rcp)
+{
+	RCU_TRACE(reset_cpu_stall_ticks(rcp));
+	if (rcp->rcucblist != NULL &&
+	    rcp->donetail != rcp->curtail) {
+		rcp->donetail = rcp->curtail;
+		return 1;
+	}
+
+	return 0;
+}
+
+/*
+ * Record an rcu quiescent state.  And an rcu_bh quiescent state while we
+ * are at it, given that any rcu quiescent state is also an rcu_bh
+ * quiescent state.  Use "+" instead of "||" to defeat short circuiting.
+ */
+void rcu_sched_qs(int cpu)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	if (rcu_qsctr_help(&rcu_sched_ctrlblk) +
+	    rcu_qsctr_help(&rcu_bh_ctrlblk))
+		raise_softirq(RCU_SOFTIRQ);
+	local_irq_restore(flags);
+}
+
+/*
+ * Record an rcu_bh quiescent state.
+ */
+void rcu_bh_qs(int cpu)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	if (rcu_qsctr_help(&rcu_bh_ctrlblk))
+		raise_softirq(RCU_SOFTIRQ);
+	local_irq_restore(flags);
+}
+
+/*
+ * Check to see if the scheduling-clock interrupt came from an extended
+ * quiescent state, and, if so, tell RCU about it.  This function must
+ * be called from hardirq context.  It is normally called from the
+ * scheduling-clock interrupt.
+ */
+void rcu_check_callbacks(int cpu, int user)
+{
+	RCU_TRACE(check_cpu_stalls());
+	if (user || rcu_is_cpu_rrupt_from_idle())
+		rcu_sched_qs(cpu);
+	else if (!in_softirq())
+		rcu_bh_qs(cpu);
+}
+
+/*
+ * Invoke the RCU callbacks on the specified rcu_ctrlkblk structure
+ * whose grace period has elapsed.
+ */
+static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp)
+{
+	const char *rn = NULL;
+	struct rcu_head *next, *list;
+	unsigned long flags;
+	RCU_TRACE(int cb_count = 0);
+
+	/* If no RCU callbacks ready to invoke, just return. */
+	if (&rcp->rcucblist == rcp->donetail) {
+		RCU_TRACE(trace_rcu_batch_start(rcp->name, 0, 0, -1));
+		RCU_TRACE(trace_rcu_batch_end(rcp->name, 0,
+					      !!ACCESS_ONCE(rcp->rcucblist),
+					      need_resched(),
+					      is_idle_task(current),
+					      false));
+		return;
+	}
+
+	/* Move the ready-to-invoke callbacks to a local list. */
+	local_irq_save(flags);
+	RCU_TRACE(trace_rcu_batch_start(rcp->name, 0, rcp->qlen, -1));
+	list = rcp->rcucblist;
+	rcp->rcucblist = *rcp->donetail;
+	*rcp->donetail = NULL;
+	if (rcp->curtail == rcp->donetail)
+		rcp->curtail = &rcp->rcucblist;
+	rcp->donetail = &rcp->rcucblist;
+	local_irq_restore(flags);
+
+	/* Invoke the callbacks on the local list. */
+	RCU_TRACE(rn = rcp->name);
+	while (list) {
+		next = list->next;
+		prefetch(next);
+		debug_rcu_head_unqueue(list);
+		local_bh_disable();
+		__rcu_reclaim(rn, list);
+		local_bh_enable();
+		list = next;
+		RCU_TRACE(cb_count++);
+	}
+	RCU_TRACE(rcu_trace_sub_qlen(rcp, cb_count));
+	RCU_TRACE(trace_rcu_batch_end(rcp->name,
+				      cb_count, 0, need_resched(),
+				      is_idle_task(current),
+				      false));
+}
+
+static void rcu_process_callbacks(struct softirq_action *unused)
+{
+	__rcu_process_callbacks(&rcu_sched_ctrlblk);
+	__rcu_process_callbacks(&rcu_bh_ctrlblk);
+}
+
+/*
+ * Wait for a grace period to elapse.  But it is illegal to invoke
+ * synchronize_sched() from within an RCU read-side critical section.
+ * Therefore, any legal call to synchronize_sched() is a quiescent
+ * state, and so on a UP system, synchronize_sched() need do nothing.
+ * Ditto for synchronize_rcu_bh().  (But Lai Jiangshan points out the
+ * benefits of doing might_sleep() to reduce latency.)
+ *
+ * Cool, huh?  (Due to Josh Triplett.)
+ *
+ * But we want to make this a static inline later.  The cond_resched()
+ * currently makes this problematic.
+ */
+void synchronize_sched(void)
+{
+	rcu_lockdep_assert(!lock_is_held(&rcu_bh_lock_map) &&
+			   !lock_is_held(&rcu_lock_map) &&
+			   !lock_is_held(&rcu_sched_lock_map),
+			   "Illegal synchronize_sched() in RCU read-side critical section");
+	cond_resched();
+}
+EXPORT_SYMBOL_GPL(synchronize_sched);
+
+/*
+ * Helper function for call_rcu() and call_rcu_bh().
+ */
+static void __call_rcu(struct rcu_head *head,
+		       void (*func)(struct rcu_head *rcu),
+		       struct rcu_ctrlblk *rcp)
+{
+	unsigned long flags;
+
+	debug_rcu_head_queue(head);
+	head->func = func;
+	head->next = NULL;
+
+	local_irq_save(flags);
+	*rcp->curtail = head;
+	rcp->curtail = &head->next;
+	RCU_TRACE(rcp->qlen++);
+	local_irq_restore(flags);
+}
+
+/*
+ * Post an RCU callback to be invoked after the end of an RCU-sched grace
+ * period.  But since we have but one CPU, that would be after any
+ * quiescent state.
+ */
+void call_rcu_sched(struct rcu_head *head, void (*func)(struct rcu_head *rcu))
+{
+	__call_rcu(head, func, &rcu_sched_ctrlblk);
+}
+EXPORT_SYMBOL_GPL(call_rcu_sched);
+
+/*
+ * Post an RCU bottom-half callback to be invoked after any subsequent
+ * quiescent state.
+ */
+void call_rcu_bh(struct rcu_head *head, void (*func)(struct rcu_head *rcu))
+{
+	__call_rcu(head, func, &rcu_bh_ctrlblk);
+}
+EXPORT_SYMBOL_GPL(call_rcu_bh);
+
+void rcu_init(void)
+{
+	open_softirq(RCU_SOFTIRQ, rcu_process_callbacks);
+}
diff --git a/kernel/rcu/tiny_plugin.h b/kernel/rcu/tiny_plugin.h
new file mode 100644
index 000000000000..280d06cae352
--- /dev/null
+++ b/kernel/rcu/tiny_plugin.h
@@ -0,0 +1,174 @@
+/*
+ * Read-Copy Update mechanism for mutual exclusion, the Bloatwatch edition
+ * Internal non-public definitions that provide either classic
+ * or preemptible semantics.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (c) 2010 Linaro
+ *
+ * Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+ */
+
+#include <linux/kthread.h>
+#include <linux/module.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+
+/* Global control variables for rcupdate callback mechanism. */
+struct rcu_ctrlblk {
+	struct rcu_head *rcucblist;	/* List of pending callbacks (CBs). */
+	struct rcu_head **donetail;	/* ->next pointer of last "done" CB. */
+	struct rcu_head **curtail;	/* ->next pointer of last CB. */
+	RCU_TRACE(long qlen);		/* Number of pending CBs. */
+	RCU_TRACE(unsigned long gp_start); /* Start time for stalls. */
+	RCU_TRACE(unsigned long ticks_this_gp); /* Statistic for stalls. */
+	RCU_TRACE(unsigned long jiffies_stall); /* Jiffies at next stall. */
+	RCU_TRACE(const char *name);	/* Name of RCU type. */
+};
+
+/* Definition for rcupdate control block. */
+static struct rcu_ctrlblk rcu_sched_ctrlblk = {
+	.donetail	= &rcu_sched_ctrlblk.rcucblist,
+	.curtail	= &rcu_sched_ctrlblk.rcucblist,
+	RCU_TRACE(.name = "rcu_sched")
+};
+
+static struct rcu_ctrlblk rcu_bh_ctrlblk = {
+	.donetail	= &rcu_bh_ctrlblk.rcucblist,
+	.curtail	= &rcu_bh_ctrlblk.rcucblist,
+	RCU_TRACE(.name = "rcu_bh")
+};
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+#include <linux/kernel_stat.h>
+
+int rcu_scheduler_active __read_mostly;
+EXPORT_SYMBOL_GPL(rcu_scheduler_active);
+
+/*
+ * During boot, we forgive RCU lockdep issues.  After this function is
+ * invoked, we start taking RCU lockdep issues seriously.
+ */
+void __init rcu_scheduler_starting(void)
+{
+	WARN_ON(nr_context_switches() > 0);
+	rcu_scheduler_active = 1;
+}
+
+#endif /* #ifdef CONFIG_DEBUG_LOCK_ALLOC */
+
+#ifdef CONFIG_RCU_TRACE
+
+static void rcu_trace_sub_qlen(struct rcu_ctrlblk *rcp, int n)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	rcp->qlen -= n;
+	local_irq_restore(flags);
+}
+
+/*
+ * Dump statistics for TINY_RCU, such as they are.
+ */
+static int show_tiny_stats(struct seq_file *m, void *unused)
+{
+	seq_printf(m, "rcu_sched: qlen: %ld\n", rcu_sched_ctrlblk.qlen);
+	seq_printf(m, "rcu_bh: qlen: %ld\n", rcu_bh_ctrlblk.qlen);
+	return 0;
+}
+
+static int show_tiny_stats_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, show_tiny_stats, NULL);
+}
+
+static const struct file_operations show_tiny_stats_fops = {
+	.owner = THIS_MODULE,
+	.open = show_tiny_stats_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static struct dentry *rcudir;
+
+static int __init rcutiny_trace_init(void)
+{
+	struct dentry *retval;
+
+	rcudir = debugfs_create_dir("rcu", NULL);
+	if (!rcudir)
+		goto free_out;
+	retval = debugfs_create_file("rcudata", 0444, rcudir,
+				     NULL, &show_tiny_stats_fops);
+	if (!retval)
+		goto free_out;
+	return 0;
+free_out:
+	debugfs_remove_recursive(rcudir);
+	return 1;
+}
+
+static void __exit rcutiny_trace_cleanup(void)
+{
+	debugfs_remove_recursive(rcudir);
+}
+
+module_init(rcutiny_trace_init);
+module_exit(rcutiny_trace_cleanup);
+
+MODULE_AUTHOR("Paul E. McKenney");
+MODULE_DESCRIPTION("Read-Copy Update tracing for tiny implementation");
+MODULE_LICENSE("GPL");
+
+static void check_cpu_stall(struct rcu_ctrlblk *rcp)
+{
+	unsigned long j;
+	unsigned long js;
+
+	if (rcu_cpu_stall_suppress)
+		return;
+	rcp->ticks_this_gp++;
+	j = jiffies;
+	js = rcp->jiffies_stall;
+	if (*rcp->curtail && ULONG_CMP_GE(j, js)) {
+		pr_err("INFO: %s stall on CPU (%lu ticks this GP) idle=%llx (t=%lu jiffies q=%ld)\n",
+		       rcp->name, rcp->ticks_this_gp, rcu_dynticks_nesting,
+		       jiffies - rcp->gp_start, rcp->qlen);
+		dump_stack();
+	}
+	if (*rcp->curtail && ULONG_CMP_GE(j, js))
+		rcp->jiffies_stall = jiffies +
+			3 * rcu_jiffies_till_stall_check() + 3;
+	else if (ULONG_CMP_GE(j, js))
+		rcp->jiffies_stall = jiffies + rcu_jiffies_till_stall_check();
+}
+
+static void reset_cpu_stall_ticks(struct rcu_ctrlblk *rcp)
+{
+	rcp->ticks_this_gp = 0;
+	rcp->gp_start = jiffies;
+	rcp->jiffies_stall = jiffies + rcu_jiffies_till_stall_check();
+}
+
+static void check_cpu_stalls(void)
+{
+	RCU_TRACE(check_cpu_stall(&rcu_bh_ctrlblk));
+	RCU_TRACE(check_cpu_stall(&rcu_sched_ctrlblk));
+}
+
+#endif /* #ifdef CONFIG_RCU_TRACE */
diff --git a/kernel/rcu/torture.c b/kernel/rcu/torture.c
new file mode 100644
index 000000000000..3929cd451511
--- /dev/null
+++ b/kernel/rcu/torture.c
@@ -0,0 +1,2145 @@
+/*
+ * Read-Copy Update module-based torture test facility
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2005, 2006
+ *
+ * Authors: Paul E. McKenney <paulmck@us.ibm.com>
+ *	  Josh Triplett <josh@freedesktop.org>
+ *
+ * See also:  Documentation/RCU/torture.txt
+ */
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kthread.h>
+#include <linux/err.h>
+#include <linux/spinlock.h>
+#include <linux/smp.h>
+#include <linux/rcupdate.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/atomic.h>
+#include <linux/bitops.h>
+#include <linux/completion.h>
+#include <linux/moduleparam.h>
+#include <linux/percpu.h>
+#include <linux/notifier.h>
+#include <linux/reboot.h>
+#include <linux/freezer.h>
+#include <linux/cpu.h>
+#include <linux/delay.h>
+#include <linux/stat.h>
+#include <linux/srcu.h>
+#include <linux/slab.h>
+#include <linux/trace_clock.h>
+#include <asm/byteorder.h>
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Paul E. McKenney <paulmck@us.ibm.com> and Josh Triplett <josh@freedesktop.org>");
+
+MODULE_ALIAS("rcutorture");
+#ifdef MODULE_PARAM_PREFIX
+#undef MODULE_PARAM_PREFIX
+#endif
+#define MODULE_PARAM_PREFIX "rcutorture."
+
+static int fqs_duration;
+module_param(fqs_duration, int, 0444);
+MODULE_PARM_DESC(fqs_duration, "Duration of fqs bursts (us), 0 to disable");
+static int fqs_holdoff;
+module_param(fqs_holdoff, int, 0444);
+MODULE_PARM_DESC(fqs_holdoff, "Holdoff time within fqs bursts (us)");
+static int fqs_stutter = 3;
+module_param(fqs_stutter, int, 0444);
+MODULE_PARM_DESC(fqs_stutter, "Wait time between fqs bursts (s)");
+static bool gp_exp;
+module_param(gp_exp, bool, 0444);
+MODULE_PARM_DESC(gp_exp, "Use expedited GP wait primitives");
+static bool gp_normal;
+module_param(gp_normal, bool, 0444);
+MODULE_PARM_DESC(gp_normal, "Use normal (non-expedited) GP wait primitives");
+static int irqreader = 1;
+module_param(irqreader, int, 0444);
+MODULE_PARM_DESC(irqreader, "Allow RCU readers from irq handlers");
+static int n_barrier_cbs;
+module_param(n_barrier_cbs, int, 0444);
+MODULE_PARM_DESC(n_barrier_cbs, "# of callbacks/kthreads for barrier testing");
+static int nfakewriters = 4;
+module_param(nfakewriters, int, 0444);
+MODULE_PARM_DESC(nfakewriters, "Number of RCU fake writer threads");
+static int nreaders = -1;
+module_param(nreaders, int, 0444);
+MODULE_PARM_DESC(nreaders, "Number of RCU reader threads");
+static int object_debug;
+module_param(object_debug, int, 0444);
+MODULE_PARM_DESC(object_debug, "Enable debug-object double call_rcu() testing");
+static int onoff_holdoff;
+module_param(onoff_holdoff, int, 0444);
+MODULE_PARM_DESC(onoff_holdoff, "Time after boot before CPU hotplugs (s)");
+static int onoff_interval;
+module_param(onoff_interval, int, 0444);
+MODULE_PARM_DESC(onoff_interval, "Time between CPU hotplugs (s), 0=disable");
+static int shuffle_interval = 3;
+module_param(shuffle_interval, int, 0444);
+MODULE_PARM_DESC(shuffle_interval, "Number of seconds between shuffles");
+static int shutdown_secs;
+module_param(shutdown_secs, int, 0444);
+MODULE_PARM_DESC(shutdown_secs, "Shutdown time (s), <= zero to disable.");
+static int stall_cpu;
+module_param(stall_cpu, int, 0444);
+MODULE_PARM_DESC(stall_cpu, "Stall duration (s), zero to disable.");
+static int stall_cpu_holdoff = 10;
+module_param(stall_cpu_holdoff, int, 0444);
+MODULE_PARM_DESC(stall_cpu_holdoff, "Time to wait before starting stall (s).");
+static int stat_interval = 60;
+module_param(stat_interval, int, 0644);
+MODULE_PARM_DESC(stat_interval, "Number of seconds between stats printk()s");
+static int stutter = 5;
+module_param(stutter, int, 0444);
+MODULE_PARM_DESC(stutter, "Number of seconds to run/halt test");
+static int test_boost = 1;
+module_param(test_boost, int, 0444);
+MODULE_PARM_DESC(test_boost, "Test RCU prio boost: 0=no, 1=maybe, 2=yes.");
+static int test_boost_duration = 4;
+module_param(test_boost_duration, int, 0444);
+MODULE_PARM_DESC(test_boost_duration, "Duration of each boost test, seconds.");
+static int test_boost_interval = 7;
+module_param(test_boost_interval, int, 0444);
+MODULE_PARM_DESC(test_boost_interval, "Interval between boost tests, seconds.");
+static bool test_no_idle_hz = true;
+module_param(test_no_idle_hz, bool, 0444);
+MODULE_PARM_DESC(test_no_idle_hz, "Test support for tickless idle CPUs");
+static char *torture_type = "rcu";
+module_param(torture_type, charp, 0444);
+MODULE_PARM_DESC(torture_type, "Type of RCU to torture (rcu, rcu_bh, ...)");
+static bool verbose;
+module_param(verbose, bool, 0444);
+MODULE_PARM_DESC(verbose, "Enable verbose debugging printk()s");
+
+#define TORTURE_FLAG "-torture:"
+#define PRINTK_STRING(s) \
+	do { pr_alert("%s" TORTURE_FLAG s "\n", torture_type); } while (0)
+#define VERBOSE_PRINTK_STRING(s) \
+	do { if (verbose) pr_alert("%s" TORTURE_FLAG s "\n", torture_type); } while (0)
+#define VERBOSE_PRINTK_ERRSTRING(s) \
+	do { if (verbose) pr_alert("%s" TORTURE_FLAG "!!! " s "\n", torture_type); } while (0)
+
+static char printk_buf[4096];
+
+static int nrealreaders;
+static struct task_struct *writer_task;
+static struct task_struct **fakewriter_tasks;
+static struct task_struct **reader_tasks;
+static struct task_struct *stats_task;
+static struct task_struct *shuffler_task;
+static struct task_struct *stutter_task;
+static struct task_struct *fqs_task;
+static struct task_struct *boost_tasks[NR_CPUS];
+static struct task_struct *shutdown_task;
+#ifdef CONFIG_HOTPLUG_CPU
+static struct task_struct *onoff_task;
+#endif /* #ifdef CONFIG_HOTPLUG_CPU */
+static struct task_struct *stall_task;
+static struct task_struct **barrier_cbs_tasks;
+static struct task_struct *barrier_task;
+
+#define RCU_TORTURE_PIPE_LEN 10
+
+struct rcu_torture {
+	struct rcu_head rtort_rcu;
+	int rtort_pipe_count;
+	struct list_head rtort_free;
+	int rtort_mbtest;
+};
+
+static LIST_HEAD(rcu_torture_freelist);
+static struct rcu_torture __rcu *rcu_torture_current;
+static unsigned long rcu_torture_current_version;
+static struct rcu_torture rcu_tortures[10 * RCU_TORTURE_PIPE_LEN];
+static DEFINE_SPINLOCK(rcu_torture_lock);
+static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_count) =
+	{ 0 };
+static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_batch) =
+	{ 0 };
+static atomic_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1];
+static atomic_t n_rcu_torture_alloc;
+static atomic_t n_rcu_torture_alloc_fail;
+static atomic_t n_rcu_torture_free;
+static atomic_t n_rcu_torture_mberror;
+static atomic_t n_rcu_torture_error;
+static long n_rcu_torture_barrier_error;
+static long n_rcu_torture_boost_ktrerror;
+static long n_rcu_torture_boost_rterror;
+static long n_rcu_torture_boost_failure;
+static long n_rcu_torture_boosts;
+static long n_rcu_torture_timers;
+static long n_offline_attempts;
+static long n_offline_successes;
+static unsigned long sum_offline;
+static int min_offline = -1;
+static int max_offline;
+static long n_online_attempts;
+static long n_online_successes;
+static unsigned long sum_online;
+static int min_online = -1;
+static int max_online;
+static long n_barrier_attempts;
+static long n_barrier_successes;
+static struct list_head rcu_torture_removed;
+static cpumask_var_t shuffle_tmp_mask;
+
+static int stutter_pause_test;
+
+#if defined(MODULE) || defined(CONFIG_RCU_TORTURE_TEST_RUNNABLE)
+#define RCUTORTURE_RUNNABLE_INIT 1
+#else
+#define RCUTORTURE_RUNNABLE_INIT 0
+#endif
+int rcutorture_runnable = RCUTORTURE_RUNNABLE_INIT;
+module_param(rcutorture_runnable, int, 0444);
+MODULE_PARM_DESC(rcutorture_runnable, "Start rcutorture at boot");
+
+#if defined(CONFIG_RCU_BOOST) && !defined(CONFIG_HOTPLUG_CPU)
+#define rcu_can_boost() 1
+#else /* #if defined(CONFIG_RCU_BOOST) && !defined(CONFIG_HOTPLUG_CPU) */
+#define rcu_can_boost() 0
+#endif /* #else #if defined(CONFIG_RCU_BOOST) && !defined(CONFIG_HOTPLUG_CPU) */
+
+#ifdef CONFIG_RCU_TRACE
+static u64 notrace rcu_trace_clock_local(void)
+{
+	u64 ts = trace_clock_local();
+	unsigned long __maybe_unused ts_rem = do_div(ts, NSEC_PER_USEC);
+	return ts;
+}
+#else /* #ifdef CONFIG_RCU_TRACE */
+static u64 notrace rcu_trace_clock_local(void)
+{
+	return 0ULL;
+}
+#endif /* #else #ifdef CONFIG_RCU_TRACE */
+
+static unsigned long shutdown_time;	/* jiffies to system shutdown. */
+static unsigned long boost_starttime;	/* jiffies of next boost test start. */
+DEFINE_MUTEX(boost_mutex);		/* protect setting boost_starttime */
+					/*  and boost task create/destroy. */
+static atomic_t barrier_cbs_count;	/* Barrier callbacks registered. */
+static bool barrier_phase;		/* Test phase. */
+static atomic_t barrier_cbs_invoked;	/* Barrier callbacks invoked. */
+static wait_queue_head_t *barrier_cbs_wq; /* Coordinate barrier testing. */
+static DECLARE_WAIT_QUEUE_HEAD(barrier_wq);
+
+/* Mediate rmmod and system shutdown.  Concurrent rmmod & shutdown illegal! */
+
+#define FULLSTOP_DONTSTOP 0	/* Normal operation. */
+#define FULLSTOP_SHUTDOWN 1	/* System shutdown with rcutorture running. */
+#define FULLSTOP_RMMOD    2	/* Normal rmmod of rcutorture. */
+static int fullstop = FULLSTOP_RMMOD;
+/*
+ * Protect fullstop transitions and spawning of kthreads.
+ */
+static DEFINE_MUTEX(fullstop_mutex);
+
+/* Forward reference. */
+static void rcu_torture_cleanup(void);
+
+/*
+ * Detect and respond to a system shutdown.
+ */
+static int
+rcutorture_shutdown_notify(struct notifier_block *unused1,
+			   unsigned long unused2, void *unused3)
+{
+	mutex_lock(&fullstop_mutex);
+	if (fullstop == FULLSTOP_DONTSTOP)
+		fullstop = FULLSTOP_SHUTDOWN;
+	else
+		pr_warn(/* but going down anyway, so... */
+		       "Concurrent 'rmmod rcutorture' and shutdown illegal!\n");
+	mutex_unlock(&fullstop_mutex);
+	return NOTIFY_DONE;
+}
+
+/*
+ * Absorb kthreads into a kernel function that won't return, so that
+ * they won't ever access module text or data again.
+ */
+static void rcutorture_shutdown_absorb(const char *title)
+{
+	if (ACCESS_ONCE(fullstop) == FULLSTOP_SHUTDOWN) {
+		pr_notice(
+		       "rcutorture thread %s parking due to system shutdown\n",
+		       title);
+		schedule_timeout_uninterruptible(MAX_SCHEDULE_TIMEOUT);
+	}
+}
+
+/*
+ * Allocate an element from the rcu_tortures pool.
+ */
+static struct rcu_torture *
+rcu_torture_alloc(void)
+{
+	struct list_head *p;
+
+	spin_lock_bh(&rcu_torture_lock);
+	if (list_empty(&rcu_torture_freelist)) {
+		atomic_inc(&n_rcu_torture_alloc_fail);
+		spin_unlock_bh(&rcu_torture_lock);
+		return NULL;
+	}
+	atomic_inc(&n_rcu_torture_alloc);
+	p = rcu_torture_freelist.next;
+	list_del_init(p);
+	spin_unlock_bh(&rcu_torture_lock);
+	return container_of(p, struct rcu_torture, rtort_free);
+}
+
+/*
+ * Free an element to the rcu_tortures pool.
+ */
+static void
+rcu_torture_free(struct rcu_torture *p)
+{
+	atomic_inc(&n_rcu_torture_free);
+	spin_lock_bh(&rcu_torture_lock);
+	list_add_tail(&p->rtort_free, &rcu_torture_freelist);
+	spin_unlock_bh(&rcu_torture_lock);
+}
+
+struct rcu_random_state {
+	unsigned long rrs_state;
+	long rrs_count;
+};
+
+#define RCU_RANDOM_MULT 39916801  /* prime */
+#define RCU_RANDOM_ADD	479001701 /* prime */
+#define RCU_RANDOM_REFRESH 10000
+
+#define DEFINE_RCU_RANDOM(name) struct rcu_random_state name = { 0, 0 }
+
+/*
+ * Crude but fast random-number generator.  Uses a linear congruential
+ * generator, with occasional help from cpu_clock().
+ */
+static unsigned long
+rcu_random(struct rcu_random_state *rrsp)
+{
+	if (--rrsp->rrs_count < 0) {
+		rrsp->rrs_state += (unsigned long)local_clock();
+		rrsp->rrs_count = RCU_RANDOM_REFRESH;
+	}
+	rrsp->rrs_state = rrsp->rrs_state * RCU_RANDOM_MULT + RCU_RANDOM_ADD;
+	return swahw32(rrsp->rrs_state);
+}
+
+static void
+rcu_stutter_wait(const char *title)
+{
+	while (stutter_pause_test || !rcutorture_runnable) {
+		if (rcutorture_runnable)
+			schedule_timeout_interruptible(1);
+		else
+			schedule_timeout_interruptible(round_jiffies_relative(HZ));
+		rcutorture_shutdown_absorb(title);
+	}
+}
+
+/*
+ * Operations vector for selecting different types of tests.
+ */
+
+struct rcu_torture_ops {
+	void (*init)(void);
+	int (*readlock)(void);
+	void (*read_delay)(struct rcu_random_state *rrsp);
+	void (*readunlock)(int idx);
+	int (*completed)(void);
+	void (*deferred_free)(struct rcu_torture *p);
+	void (*sync)(void);
+	void (*exp_sync)(void);
+	void (*call)(struct rcu_head *head, void (*func)(struct rcu_head *rcu));
+	void (*cb_barrier)(void);
+	void (*fqs)(void);
+	int (*stats)(char *page);
+	int irq_capable;
+	int can_boost;
+	const char *name;
+};
+
+static struct rcu_torture_ops *cur_ops;
+
+/*
+ * Definitions for rcu torture testing.
+ */
+
+static int rcu_torture_read_lock(void) __acquires(RCU)
+{
+	rcu_read_lock();
+	return 0;
+}
+
+static void rcu_read_delay(struct rcu_random_state *rrsp)
+{
+	const unsigned long shortdelay_us = 200;
+	const unsigned long longdelay_ms = 50;
+
+	/* We want a short delay sometimes to make a reader delay the grace
+	 * period, and we want a long delay occasionally to trigger
+	 * force_quiescent_state. */
+
+	if (!(rcu_random(rrsp) % (nrealreaders * 2000 * longdelay_ms)))
+		mdelay(longdelay_ms);
+	if (!(rcu_random(rrsp) % (nrealreaders * 2 * shortdelay_us)))
+		udelay(shortdelay_us);
+#ifdef CONFIG_PREEMPT
+	if (!preempt_count() && !(rcu_random(rrsp) % (nrealreaders * 20000)))
+		preempt_schedule();  /* No QS if preempt_disable() in effect */
+#endif
+}
+
+static void rcu_torture_read_unlock(int idx) __releases(RCU)
+{
+	rcu_read_unlock();
+}
+
+static int rcu_torture_completed(void)
+{
+	return rcu_batches_completed();
+}
+
+static void
+rcu_torture_cb(struct rcu_head *p)
+{
+	int i;
+	struct rcu_torture *rp = container_of(p, struct rcu_torture, rtort_rcu);
+
+	if (fullstop != FULLSTOP_DONTSTOP) {
+		/* Test is ending, just drop callbacks on the floor. */
+		/* The next initialization will pick up the pieces. */
+		return;
+	}
+	i = rp->rtort_pipe_count;
+	if (i > RCU_TORTURE_PIPE_LEN)
+		i = RCU_TORTURE_PIPE_LEN;
+	atomic_inc(&rcu_torture_wcount[i]);
+	if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN) {
+		rp->rtort_mbtest = 0;
+		rcu_torture_free(rp);
+	} else {
+		cur_ops->deferred_free(rp);
+	}
+}
+
+static int rcu_no_completed(void)
+{
+	return 0;
+}
+
+static void rcu_torture_deferred_free(struct rcu_torture *p)
+{
+	call_rcu(&p->rtort_rcu, rcu_torture_cb);
+}
+
+static void rcu_sync_torture_init(void)
+{
+	INIT_LIST_HEAD(&rcu_torture_removed);
+}
+
+static struct rcu_torture_ops rcu_ops = {
+	.init		= rcu_sync_torture_init,
+	.readlock	= rcu_torture_read_lock,
+	.read_delay	= rcu_read_delay,
+	.readunlock	= rcu_torture_read_unlock,
+	.completed	= rcu_torture_completed,
+	.deferred_free	= rcu_torture_deferred_free,
+	.sync		= synchronize_rcu,
+	.exp_sync	= synchronize_rcu_expedited,
+	.call		= call_rcu,
+	.cb_barrier	= rcu_barrier,
+	.fqs		= rcu_force_quiescent_state,
+	.stats		= NULL,
+	.irq_capable	= 1,
+	.can_boost	= rcu_can_boost(),
+	.name		= "rcu"
+};
+
+/*
+ * Definitions for rcu_bh torture testing.
+ */
+
+static int rcu_bh_torture_read_lock(void) __acquires(RCU_BH)
+{
+	rcu_read_lock_bh();
+	return 0;
+}
+
+static void rcu_bh_torture_read_unlock(int idx) __releases(RCU_BH)
+{
+	rcu_read_unlock_bh();
+}
+
+static int rcu_bh_torture_completed(void)
+{
+	return rcu_batches_completed_bh();
+}
+
+static void rcu_bh_torture_deferred_free(struct rcu_torture *p)
+{
+	call_rcu_bh(&p->rtort_rcu, rcu_torture_cb);
+}
+
+static struct rcu_torture_ops rcu_bh_ops = {
+	.init		= rcu_sync_torture_init,
+	.readlock	= rcu_bh_torture_read_lock,
+	.read_delay	= rcu_read_delay,  /* just reuse rcu's version. */
+	.readunlock	= rcu_bh_torture_read_unlock,
+	.completed	= rcu_bh_torture_completed,
+	.deferred_free	= rcu_bh_torture_deferred_free,
+	.sync		= synchronize_rcu_bh,
+	.exp_sync	= synchronize_rcu_bh_expedited,
+	.call		= call_rcu_bh,
+	.cb_barrier	= rcu_barrier_bh,
+	.fqs		= rcu_bh_force_quiescent_state,
+	.stats		= NULL,
+	.irq_capable	= 1,
+	.name		= "rcu_bh"
+};
+
+/*
+ * Definitions for srcu torture testing.
+ */
+
+DEFINE_STATIC_SRCU(srcu_ctl);
+
+static int srcu_torture_read_lock(void) __acquires(&srcu_ctl)
+{
+	return srcu_read_lock(&srcu_ctl);
+}
+
+static void srcu_read_delay(struct rcu_random_state *rrsp)
+{
+	long delay;
+	const long uspertick = 1000000 / HZ;
+	const long longdelay = 10;
+
+	/* We want there to be long-running readers, but not all the time. */
+
+	delay = rcu_random(rrsp) % (nrealreaders * 2 * longdelay * uspertick);
+	if (!delay)
+		schedule_timeout_interruptible(longdelay);
+	else
+		rcu_read_delay(rrsp);
+}
+
+static void srcu_torture_read_unlock(int idx) __releases(&srcu_ctl)
+{
+	srcu_read_unlock(&srcu_ctl, idx);
+}
+
+static int srcu_torture_completed(void)
+{
+	return srcu_batches_completed(&srcu_ctl);
+}
+
+static void srcu_torture_deferred_free(struct rcu_torture *rp)
+{
+	call_srcu(&srcu_ctl, &rp->rtort_rcu, rcu_torture_cb);
+}
+
+static void srcu_torture_synchronize(void)
+{
+	synchronize_srcu(&srcu_ctl);
+}
+
+static void srcu_torture_call(struct rcu_head *head,
+			      void (*func)(struct rcu_head *head))
+{
+	call_srcu(&srcu_ctl, head, func);
+}
+
+static void srcu_torture_barrier(void)
+{
+	srcu_barrier(&srcu_ctl);
+}
+
+static int srcu_torture_stats(char *page)
+{
+	int cnt = 0;
+	int cpu;
+	int idx = srcu_ctl.completed & 0x1;
+
+	cnt += sprintf(&page[cnt], "%s%s per-CPU(idx=%d):",
+		       torture_type, TORTURE_FLAG, idx);
+	for_each_possible_cpu(cpu) {
+		cnt += sprintf(&page[cnt], " %d(%lu,%lu)", cpu,
+			       per_cpu_ptr(srcu_ctl.per_cpu_ref, cpu)->c[!idx],
+			       per_cpu_ptr(srcu_ctl.per_cpu_ref, cpu)->c[idx]);
+	}
+	cnt += sprintf(&page[cnt], "\n");
+	return cnt;
+}
+
+static void srcu_torture_synchronize_expedited(void)
+{
+	synchronize_srcu_expedited(&srcu_ctl);
+}
+
+static struct rcu_torture_ops srcu_ops = {
+	.init		= rcu_sync_torture_init,
+	.readlock	= srcu_torture_read_lock,
+	.read_delay	= srcu_read_delay,
+	.readunlock	= srcu_torture_read_unlock,
+	.completed	= srcu_torture_completed,
+	.deferred_free	= srcu_torture_deferred_free,
+	.sync		= srcu_torture_synchronize,
+	.exp_sync	= srcu_torture_synchronize_expedited,
+	.call		= srcu_torture_call,
+	.cb_barrier	= srcu_torture_barrier,
+	.stats		= srcu_torture_stats,
+	.name		= "srcu"
+};
+
+/*
+ * Definitions for sched torture testing.
+ */
+
+static int sched_torture_read_lock(void)
+{
+	preempt_disable();
+	return 0;
+}
+
+static void sched_torture_read_unlock(int idx)
+{
+	preempt_enable();
+}
+
+static void rcu_sched_torture_deferred_free(struct rcu_torture *p)
+{
+	call_rcu_sched(&p->rtort_rcu, rcu_torture_cb);
+}
+
+static struct rcu_torture_ops sched_ops = {
+	.init		= rcu_sync_torture_init,
+	.readlock	= sched_torture_read_lock,
+	.read_delay	= rcu_read_delay,  /* just reuse rcu's version. */
+	.readunlock	= sched_torture_read_unlock,
+	.completed	= rcu_no_completed,
+	.deferred_free	= rcu_sched_torture_deferred_free,
+	.sync		= synchronize_sched,
+	.exp_sync	= synchronize_sched_expedited,
+	.call		= call_rcu_sched,
+	.cb_barrier	= rcu_barrier_sched,
+	.fqs		= rcu_sched_force_quiescent_state,
+	.stats		= NULL,
+	.irq_capable	= 1,
+	.name		= "sched"
+};
+
+/*
+ * RCU torture priority-boost testing.  Runs one real-time thread per
+ * CPU for moderate bursts, repeatedly registering RCU callbacks and
+ * spinning waiting for them to be invoked.  If a given callback takes
+ * too long to be invoked, we assume that priority inversion has occurred.
+ */
+
+struct rcu_boost_inflight {
+	struct rcu_head rcu;
+	int inflight;
+};
+
+static void rcu_torture_boost_cb(struct rcu_head *head)
+{
+	struct rcu_boost_inflight *rbip =
+		container_of(head, struct rcu_boost_inflight, rcu);
+
+	smp_mb(); /* Ensure RCU-core accesses precede clearing ->inflight */
+	rbip->inflight = 0;
+}
+
+static int rcu_torture_boost(void *arg)
+{
+	unsigned long call_rcu_time;
+	unsigned long endtime;
+	unsigned long oldstarttime;
+	struct rcu_boost_inflight rbi = { .inflight = 0 };
+	struct sched_param sp;
+
+	VERBOSE_PRINTK_STRING("rcu_torture_boost started");
+
+	/* Set real-time priority. */
+	sp.sched_priority = 1;
+	if (sched_setscheduler(current, SCHED_FIFO, &sp) < 0) {
+		VERBOSE_PRINTK_STRING("rcu_torture_boost RT prio failed!");
+		n_rcu_torture_boost_rterror++;
+	}
+
+	init_rcu_head_on_stack(&rbi.rcu);
+	/* Each pass through the following loop does one boost-test cycle. */
+	do {
+		/* Wait for the next test interval. */
+		oldstarttime = boost_starttime;
+		while (ULONG_CMP_LT(jiffies, oldstarttime)) {
+			schedule_timeout_interruptible(oldstarttime - jiffies);
+			rcu_stutter_wait("rcu_torture_boost");
+			if (kthread_should_stop() ||
+			    fullstop != FULLSTOP_DONTSTOP)
+				goto checkwait;
+		}
+
+		/* Do one boost-test interval. */
+		endtime = oldstarttime + test_boost_duration * HZ;
+		call_rcu_time = jiffies;
+		while (ULONG_CMP_LT(jiffies, endtime)) {
+			/* If we don't have a callback in flight, post one. */
+			if (!rbi.inflight) {
+				smp_mb(); /* RCU core before ->inflight = 1. */
+				rbi.inflight = 1;
+				call_rcu(&rbi.rcu, rcu_torture_boost_cb);
+				if (jiffies - call_rcu_time >
+					 test_boost_duration * HZ - HZ / 2) {
+					VERBOSE_PRINTK_STRING("rcu_torture_boost boosting failed");
+					n_rcu_torture_boost_failure++;
+				}
+				call_rcu_time = jiffies;
+			}
+			cond_resched();
+			rcu_stutter_wait("rcu_torture_boost");
+			if (kthread_should_stop() ||
+			    fullstop != FULLSTOP_DONTSTOP)
+				goto checkwait;
+		}
+
+		/*
+		 * Set the start time of the next test interval.
+		 * Yes, this is vulnerable to long delays, but such
+		 * delays simply cause a false negative for the next
+		 * interval.  Besides, we are running at RT priority,
+		 * so delays should be relatively rare.
+		 */
+		while (oldstarttime == boost_starttime &&
+		       !kthread_should_stop()) {
+			if (mutex_trylock(&boost_mutex)) {
+				boost_starttime = jiffies +
+						  test_boost_interval * HZ;
+				n_rcu_torture_boosts++;
+				mutex_unlock(&boost_mutex);
+				break;
+			}
+			schedule_timeout_uninterruptible(1);
+		}
+
+		/* Go do the stutter. */
+checkwait:	rcu_stutter_wait("rcu_torture_boost");
+	} while (!kthread_should_stop() && fullstop  == FULLSTOP_DONTSTOP);
+
+	/* Clean up and exit. */
+	VERBOSE_PRINTK_STRING("rcu_torture_boost task stopping");
+	rcutorture_shutdown_absorb("rcu_torture_boost");
+	while (!kthread_should_stop() || rbi.inflight)
+		schedule_timeout_uninterruptible(1);
+	smp_mb(); /* order accesses to ->inflight before stack-frame death. */
+	destroy_rcu_head_on_stack(&rbi.rcu);
+	return 0;
+}
+
+/*
+ * RCU torture force-quiescent-state kthread.  Repeatedly induces
+ * bursts of calls to force_quiescent_state(), increasing the probability
+ * of occurrence of some important types of race conditions.
+ */
+static int
+rcu_torture_fqs(void *arg)
+{
+	unsigned long fqs_resume_time;
+	int fqs_burst_remaining;
+
+	VERBOSE_PRINTK_STRING("rcu_torture_fqs task started");
+	do {
+		fqs_resume_time = jiffies + fqs_stutter * HZ;
+		while (ULONG_CMP_LT(jiffies, fqs_resume_time) &&
+		       !kthread_should_stop()) {
+			schedule_timeout_interruptible(1);
+		}
+		fqs_burst_remaining = fqs_duration;
+		while (fqs_burst_remaining > 0 &&
+		       !kthread_should_stop()) {
+			cur_ops->fqs();
+			udelay(fqs_holdoff);
+			fqs_burst_remaining -= fqs_holdoff;
+		}
+		rcu_stutter_wait("rcu_torture_fqs");
+	} while (!kthread_should_stop() && fullstop == FULLSTOP_DONTSTOP);
+	VERBOSE_PRINTK_STRING("rcu_torture_fqs task stopping");
+	rcutorture_shutdown_absorb("rcu_torture_fqs");
+	while (!kthread_should_stop())
+		schedule_timeout_uninterruptible(1);
+	return 0;
+}
+
+/*
+ * RCU torture writer kthread.  Repeatedly substitutes a new structure
+ * for that pointed to by rcu_torture_current, freeing the old structure
+ * after a series of grace periods (the "pipeline").
+ */
+static int
+rcu_torture_writer(void *arg)
+{
+	bool exp;
+	int i;
+	struct rcu_torture *rp;
+	struct rcu_torture *rp1;
+	struct rcu_torture *old_rp;
+	static DEFINE_RCU_RANDOM(rand);
+
+	VERBOSE_PRINTK_STRING("rcu_torture_writer task started");
+	set_user_nice(current, 19);
+
+	do {
+		schedule_timeout_uninterruptible(1);
+		rp = rcu_torture_alloc();
+		if (rp == NULL)
+			continue;
+		rp->rtort_pipe_count = 0;
+		udelay(rcu_random(&rand) & 0x3ff);
+		old_rp = rcu_dereference_check(rcu_torture_current,
+					       current == writer_task);
+		rp->rtort_mbtest = 1;
+		rcu_assign_pointer(rcu_torture_current, rp);
+		smp_wmb(); /* Mods to old_rp must follow rcu_assign_pointer() */
+		if (old_rp) {
+			i = old_rp->rtort_pipe_count;
+			if (i > RCU_TORTURE_PIPE_LEN)
+				i = RCU_TORTURE_PIPE_LEN;
+			atomic_inc(&rcu_torture_wcount[i]);
+			old_rp->rtort_pipe_count++;
+			if (gp_normal == gp_exp)
+				exp = !!(rcu_random(&rand) & 0x80);
+			else
+				exp = gp_exp;
+			if (!exp) {
+				cur_ops->deferred_free(old_rp);
+			} else {
+				cur_ops->exp_sync();
+				list_add(&old_rp->rtort_free,
+					 &rcu_torture_removed);
+				list_for_each_entry_safe(rp, rp1,
+							 &rcu_torture_removed,
+							 rtort_free) {
+					i = rp->rtort_pipe_count;
+					if (i > RCU_TORTURE_PIPE_LEN)
+						i = RCU_TORTURE_PIPE_LEN;
+					atomic_inc(&rcu_torture_wcount[i]);
+					if (++rp->rtort_pipe_count >=
+					    RCU_TORTURE_PIPE_LEN) {
+						rp->rtort_mbtest = 0;
+						list_del(&rp->rtort_free);
+						rcu_torture_free(rp);
+					}
+				 }
+			}
+		}
+		rcutorture_record_progress(++rcu_torture_current_version);
+		rcu_stutter_wait("rcu_torture_writer");
+	} while (!kthread_should_stop() && fullstop == FULLSTOP_DONTSTOP);
+	VERBOSE_PRINTK_STRING("rcu_torture_writer task stopping");
+	rcutorture_shutdown_absorb("rcu_torture_writer");
+	while (!kthread_should_stop())
+		schedule_timeout_uninterruptible(1);
+	return 0;
+}
+
+/*
+ * RCU torture fake writer kthread.  Repeatedly calls sync, with a random
+ * delay between calls.
+ */
+static int
+rcu_torture_fakewriter(void *arg)
+{
+	DEFINE_RCU_RANDOM(rand);
+
+	VERBOSE_PRINTK_STRING("rcu_torture_fakewriter task started");
+	set_user_nice(current, 19);
+
+	do {
+		schedule_timeout_uninterruptible(1 + rcu_random(&rand)%10);
+		udelay(rcu_random(&rand) & 0x3ff);
+		if (cur_ops->cb_barrier != NULL &&
+		    rcu_random(&rand) % (nfakewriters * 8) == 0) {
+			cur_ops->cb_barrier();
+		} else if (gp_normal == gp_exp) {
+			if (rcu_random(&rand) & 0x80)
+				cur_ops->sync();
+			else
+				cur_ops->exp_sync();
+		} else if (gp_normal) {
+			cur_ops->sync();
+		} else {
+			cur_ops->exp_sync();
+		}
+		rcu_stutter_wait("rcu_torture_fakewriter");
+	} while (!kthread_should_stop() && fullstop == FULLSTOP_DONTSTOP);
+
+	VERBOSE_PRINTK_STRING("rcu_torture_fakewriter task stopping");
+	rcutorture_shutdown_absorb("rcu_torture_fakewriter");
+	while (!kthread_should_stop())
+		schedule_timeout_uninterruptible(1);
+	return 0;
+}
+
+void rcutorture_trace_dump(void)
+{
+	static atomic_t beenhere = ATOMIC_INIT(0);
+
+	if (atomic_read(&beenhere))
+		return;
+	if (atomic_xchg(&beenhere, 1) != 0)
+		return;
+	ftrace_dump(DUMP_ALL);
+}
+
+/*
+ * RCU torture reader from timer handler.  Dereferences rcu_torture_current,
+ * incrementing the corresponding element of the pipeline array.  The
+ * counter in the element should never be greater than 1, otherwise, the
+ * RCU implementation is broken.
+ */
+static void rcu_torture_timer(unsigned long unused)
+{
+	int idx;
+	int completed;
+	int completed_end;
+	static DEFINE_RCU_RANDOM(rand);
+	static DEFINE_SPINLOCK(rand_lock);
+	struct rcu_torture *p;
+	int pipe_count;
+	unsigned long long ts;
+
+	idx = cur_ops->readlock();
+	completed = cur_ops->completed();
+	ts = rcu_trace_clock_local();
+	p = rcu_dereference_check(rcu_torture_current,
+				  rcu_read_lock_bh_held() ||
+				  rcu_read_lock_sched_held() ||
+				  srcu_read_lock_held(&srcu_ctl));
+	if (p == NULL) {
+		/* Leave because rcu_torture_writer is not yet underway */
+		cur_ops->readunlock(idx);
+		return;
+	}
+	if (p->rtort_mbtest == 0)
+		atomic_inc(&n_rcu_torture_mberror);
+	spin_lock(&rand_lock);
+	cur_ops->read_delay(&rand);
+	n_rcu_torture_timers++;
+	spin_unlock(&rand_lock);
+	preempt_disable();
+	pipe_count = p->rtort_pipe_count;
+	if (pipe_count > RCU_TORTURE_PIPE_LEN) {
+		/* Should not happen, but... */
+		pipe_count = RCU_TORTURE_PIPE_LEN;
+	}
+	completed_end = cur_ops->completed();
+	if (pipe_count > 1) {
+		do_trace_rcu_torture_read(cur_ops->name, &p->rtort_rcu, ts,
+					  completed, completed_end);
+		rcutorture_trace_dump();
+	}
+	__this_cpu_inc(rcu_torture_count[pipe_count]);
+	completed = completed_end - completed;
+	if (completed > RCU_TORTURE_PIPE_LEN) {
+		/* Should not happen, but... */
+		completed = RCU_TORTURE_PIPE_LEN;
+	}
+	__this_cpu_inc(rcu_torture_batch[completed]);
+	preempt_enable();
+	cur_ops->readunlock(idx);
+}
+
+/*
+ * RCU torture reader kthread.  Repeatedly dereferences rcu_torture_current,
+ * incrementing the corresponding element of the pipeline array.  The
+ * counter in the element should never be greater than 1, otherwise, the
+ * RCU implementation is broken.
+ */
+static int
+rcu_torture_reader(void *arg)
+{
+	int completed;
+	int completed_end;
+	int idx;
+	DEFINE_RCU_RANDOM(rand);
+	struct rcu_torture *p;
+	int pipe_count;
+	struct timer_list t;
+	unsigned long long ts;
+
+	VERBOSE_PRINTK_STRING("rcu_torture_reader task started");
+	set_user_nice(current, 19);
+	if (irqreader && cur_ops->irq_capable)
+		setup_timer_on_stack(&t, rcu_torture_timer, 0);
+
+	do {
+		if (irqreader && cur_ops->irq_capable) {
+			if (!timer_pending(&t))
+				mod_timer(&t, jiffies + 1);
+		}
+		idx = cur_ops->readlock();
+		completed = cur_ops->completed();
+		ts = rcu_trace_clock_local();
+		p = rcu_dereference_check(rcu_torture_current,
+					  rcu_read_lock_bh_held() ||
+					  rcu_read_lock_sched_held() ||
+					  srcu_read_lock_held(&srcu_ctl));
+		if (p == NULL) {
+			/* Wait for rcu_torture_writer to get underway */
+			cur_ops->readunlock(idx);
+			schedule_timeout_interruptible(HZ);
+			continue;
+		}
+		if (p->rtort_mbtest == 0)
+			atomic_inc(&n_rcu_torture_mberror);
+		cur_ops->read_delay(&rand);
+		preempt_disable();
+		pipe_count = p->rtort_pipe_count;
+		if (pipe_count > RCU_TORTURE_PIPE_LEN) {
+			/* Should not happen, but... */
+			pipe_count = RCU_TORTURE_PIPE_LEN;
+		}
+		completed_end = cur_ops->completed();
+		if (pipe_count > 1) {
+			do_trace_rcu_torture_read(cur_ops->name, &p->rtort_rcu,
+						  ts, completed, completed_end);
+			rcutorture_trace_dump();
+		}
+		__this_cpu_inc(rcu_torture_count[pipe_count]);
+		completed = completed_end - completed;
+		if (completed > RCU_TORTURE_PIPE_LEN) {
+			/* Should not happen, but... */
+			completed = RCU_TORTURE_PIPE_LEN;
+		}
+		__this_cpu_inc(rcu_torture_batch[completed]);
+		preempt_enable();
+		cur_ops->readunlock(idx);
+		schedule();
+		rcu_stutter_wait("rcu_torture_reader");
+	} while (!kthread_should_stop() && fullstop == FULLSTOP_DONTSTOP);
+	VERBOSE_PRINTK_STRING("rcu_torture_reader task stopping");
+	rcutorture_shutdown_absorb("rcu_torture_reader");
+	if (irqreader && cur_ops->irq_capable)
+		del_timer_sync(&t);
+	while (!kthread_should_stop())
+		schedule_timeout_uninterruptible(1);
+	return 0;
+}
+
+/*
+ * Create an RCU-torture statistics message in the specified buffer.
+ */
+static int
+rcu_torture_printk(char *page)
+{
+	int cnt = 0;
+	int cpu;
+	int i;
+	long pipesummary[RCU_TORTURE_PIPE_LEN + 1] = { 0 };
+	long batchsummary[RCU_TORTURE_PIPE_LEN + 1] = { 0 };
+
+	for_each_possible_cpu(cpu) {
+		for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
+			pipesummary[i] += per_cpu(rcu_torture_count, cpu)[i];
+			batchsummary[i] += per_cpu(rcu_torture_batch, cpu)[i];
+		}
+	}
+	for (i = RCU_TORTURE_PIPE_LEN - 1; i >= 0; i--) {
+		if (pipesummary[i] != 0)
+			break;
+	}
+	cnt += sprintf(&page[cnt], "%s%s ", torture_type, TORTURE_FLAG);
+	cnt += sprintf(&page[cnt],
+		       "rtc: %p ver: %lu tfle: %d rta: %d rtaf: %d rtf: %d ",
+		       rcu_torture_current,
+		       rcu_torture_current_version,
+		       list_empty(&rcu_torture_freelist),
+		       atomic_read(&n_rcu_torture_alloc),
+		       atomic_read(&n_rcu_torture_alloc_fail),
+		       atomic_read(&n_rcu_torture_free));
+	cnt += sprintf(&page[cnt], "rtmbe: %d rtbke: %ld rtbre: %ld ",
+		       atomic_read(&n_rcu_torture_mberror),
+		       n_rcu_torture_boost_ktrerror,
+		       n_rcu_torture_boost_rterror);
+	cnt += sprintf(&page[cnt], "rtbf: %ld rtb: %ld nt: %ld ",
+		       n_rcu_torture_boost_failure,
+		       n_rcu_torture_boosts,
+		       n_rcu_torture_timers);
+	cnt += sprintf(&page[cnt],
+		       "onoff: %ld/%ld:%ld/%ld %d,%d:%d,%d %lu:%lu (HZ=%d) ",
+		       n_online_successes, n_online_attempts,
+		       n_offline_successes, n_offline_attempts,
+		       min_online, max_online,
+		       min_offline, max_offline,
+		       sum_online, sum_offline, HZ);
+	cnt += sprintf(&page[cnt], "barrier: %ld/%ld:%ld",
+		       n_barrier_successes,
+		       n_barrier_attempts,
+		       n_rcu_torture_barrier_error);
+	cnt += sprintf(&page[cnt], "\n%s%s ", torture_type, TORTURE_FLAG);
+	if (atomic_read(&n_rcu_torture_mberror) != 0 ||
+	    n_rcu_torture_barrier_error != 0 ||
+	    n_rcu_torture_boost_ktrerror != 0 ||
+	    n_rcu_torture_boost_rterror != 0 ||
+	    n_rcu_torture_boost_failure != 0 ||
+	    i > 1) {
+		cnt += sprintf(&page[cnt], "!!! ");
+		atomic_inc(&n_rcu_torture_error);
+		WARN_ON_ONCE(1);
+	}
+	cnt += sprintf(&page[cnt], "Reader Pipe: ");
+	for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++)
+		cnt += sprintf(&page[cnt], " %ld", pipesummary[i]);
+	cnt += sprintf(&page[cnt], "\n%s%s ", torture_type, TORTURE_FLAG);
+	cnt += sprintf(&page[cnt], "Reader Batch: ");
+	for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++)
+		cnt += sprintf(&page[cnt], " %ld", batchsummary[i]);
+	cnt += sprintf(&page[cnt], "\n%s%s ", torture_type, TORTURE_FLAG);
+	cnt += sprintf(&page[cnt], "Free-Block Circulation: ");
+	for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
+		cnt += sprintf(&page[cnt], " %d",
+			       atomic_read(&rcu_torture_wcount[i]));
+	}
+	cnt += sprintf(&page[cnt], "\n");
+	if (cur_ops->stats)
+		cnt += cur_ops->stats(&page[cnt]);
+	return cnt;
+}
+
+/*
+ * Print torture statistics.  Caller must ensure that there is only
+ * one call to this function at a given time!!!  This is normally
+ * accomplished by relying on the module system to only have one copy
+ * of the module loaded, and then by giving the rcu_torture_stats
+ * kthread full control (or the init/cleanup functions when rcu_torture_stats
+ * thread is not running).
+ */
+static void
+rcu_torture_stats_print(void)
+{
+	int cnt;
+
+	cnt = rcu_torture_printk(printk_buf);
+	pr_alert("%s", printk_buf);
+}
+
+/*
+ * Periodically prints torture statistics, if periodic statistics printing
+ * was specified via the stat_interval module parameter.
+ *
+ * No need to worry about fullstop here, since this one doesn't reference
+ * volatile state or register callbacks.
+ */
+static int
+rcu_torture_stats(void *arg)
+{
+	VERBOSE_PRINTK_STRING("rcu_torture_stats task started");
+	do {
+		schedule_timeout_interruptible(stat_interval * HZ);
+		rcu_torture_stats_print();
+		rcutorture_shutdown_absorb("rcu_torture_stats");
+	} while (!kthread_should_stop());
+	VERBOSE_PRINTK_STRING("rcu_torture_stats task stopping");
+	return 0;
+}
+
+static int rcu_idle_cpu;	/* Force all torture tasks off this CPU */
+
+/* Shuffle tasks such that we allow @rcu_idle_cpu to become idle. A special case
+ * is when @rcu_idle_cpu = -1, when we allow the tasks to run on all CPUs.
+ */
+static void rcu_torture_shuffle_tasks(void)
+{
+	int i;
+
+	cpumask_setall(shuffle_tmp_mask);
+	get_online_cpus();
+
+	/* No point in shuffling if there is only one online CPU (ex: UP) */
+	if (num_online_cpus() == 1) {
+		put_online_cpus();
+		return;
+	}
+
+	if (rcu_idle_cpu != -1)
+		cpumask_clear_cpu(rcu_idle_cpu, shuffle_tmp_mask);
+
+	set_cpus_allowed_ptr(current, shuffle_tmp_mask);
+
+	if (reader_tasks) {
+		for (i = 0; i < nrealreaders; i++)
+			if (reader_tasks[i])
+				set_cpus_allowed_ptr(reader_tasks[i],
+						     shuffle_tmp_mask);
+	}
+	if (fakewriter_tasks) {
+		for (i = 0; i < nfakewriters; i++)
+			if (fakewriter_tasks[i])
+				set_cpus_allowed_ptr(fakewriter_tasks[i],
+						     shuffle_tmp_mask);
+	}
+	if (writer_task)
+		set_cpus_allowed_ptr(writer_task, shuffle_tmp_mask);
+	if (stats_task)
+		set_cpus_allowed_ptr(stats_task, shuffle_tmp_mask);
+	if (stutter_task)
+		set_cpus_allowed_ptr(stutter_task, shuffle_tmp_mask);
+	if (fqs_task)
+		set_cpus_allowed_ptr(fqs_task, shuffle_tmp_mask);
+	if (shutdown_task)
+		set_cpus_allowed_ptr(shutdown_task, shuffle_tmp_mask);
+#ifdef CONFIG_HOTPLUG_CPU
+	if (onoff_task)
+		set_cpus_allowed_ptr(onoff_task, shuffle_tmp_mask);
+#endif /* #ifdef CONFIG_HOTPLUG_CPU */
+	if (stall_task)
+		set_cpus_allowed_ptr(stall_task, shuffle_tmp_mask);
+	if (barrier_cbs_tasks)
+		for (i = 0; i < n_barrier_cbs; i++)
+			if (barrier_cbs_tasks[i])
+				set_cpus_allowed_ptr(barrier_cbs_tasks[i],
+						     shuffle_tmp_mask);
+	if (barrier_task)
+		set_cpus_allowed_ptr(barrier_task, shuffle_tmp_mask);
+
+	if (rcu_idle_cpu == -1)
+		rcu_idle_cpu = num_online_cpus() - 1;
+	else
+		rcu_idle_cpu--;
+
+	put_online_cpus();
+}
+
+/* Shuffle tasks across CPUs, with the intent of allowing each CPU in the
+ * system to become idle at a time and cut off its timer ticks. This is meant
+ * to test the support for such tickless idle CPU in RCU.
+ */
+static int
+rcu_torture_shuffle(void *arg)
+{
+	VERBOSE_PRINTK_STRING("rcu_torture_shuffle task started");
+	do {
+		schedule_timeout_interruptible(shuffle_interval * HZ);
+		rcu_torture_shuffle_tasks();
+		rcutorture_shutdown_absorb("rcu_torture_shuffle");
+	} while (!kthread_should_stop());
+	VERBOSE_PRINTK_STRING("rcu_torture_shuffle task stopping");
+	return 0;
+}
+
+/* Cause the rcutorture test to "stutter", starting and stopping all
+ * threads periodically.
+ */
+static int
+rcu_torture_stutter(void *arg)
+{
+	VERBOSE_PRINTK_STRING("rcu_torture_stutter task started");
+	do {
+		schedule_timeout_interruptible(stutter * HZ);
+		stutter_pause_test = 1;
+		if (!kthread_should_stop())
+			schedule_timeout_interruptible(stutter * HZ);
+		stutter_pause_test = 0;
+		rcutorture_shutdown_absorb("rcu_torture_stutter");
+	} while (!kthread_should_stop());
+	VERBOSE_PRINTK_STRING("rcu_torture_stutter task stopping");
+	return 0;
+}
+
+static inline void
+rcu_torture_print_module_parms(struct rcu_torture_ops *cur_ops, const char *tag)
+{
+	pr_alert("%s" TORTURE_FLAG
+		 "--- %s: nreaders=%d nfakewriters=%d "
+		 "stat_interval=%d verbose=%d test_no_idle_hz=%d "
+		 "shuffle_interval=%d stutter=%d irqreader=%d "
+		 "fqs_duration=%d fqs_holdoff=%d fqs_stutter=%d "
+		 "test_boost=%d/%d test_boost_interval=%d "
+		 "test_boost_duration=%d shutdown_secs=%d "
+		 "stall_cpu=%d stall_cpu_holdoff=%d "
+		 "n_barrier_cbs=%d "
+		 "onoff_interval=%d onoff_holdoff=%d\n",
+		 torture_type, tag, nrealreaders, nfakewriters,
+		 stat_interval, verbose, test_no_idle_hz, shuffle_interval,
+		 stutter, irqreader, fqs_duration, fqs_holdoff, fqs_stutter,
+		 test_boost, cur_ops->can_boost,
+		 test_boost_interval, test_boost_duration, shutdown_secs,
+		 stall_cpu, stall_cpu_holdoff,
+		 n_barrier_cbs,
+		 onoff_interval, onoff_holdoff);
+}
+
+static struct notifier_block rcutorture_shutdown_nb = {
+	.notifier_call = rcutorture_shutdown_notify,
+};
+
+static void rcutorture_booster_cleanup(int cpu)
+{
+	struct task_struct *t;
+
+	if (boost_tasks[cpu] == NULL)
+		return;
+	mutex_lock(&boost_mutex);
+	VERBOSE_PRINTK_STRING("Stopping rcu_torture_boost task");
+	t = boost_tasks[cpu];
+	boost_tasks[cpu] = NULL;
+	mutex_unlock(&boost_mutex);
+
+	/* This must be outside of the mutex, otherwise deadlock! */
+	kthread_stop(t);
+	boost_tasks[cpu] = NULL;
+}
+
+static int rcutorture_booster_init(int cpu)
+{
+	int retval;
+
+	if (boost_tasks[cpu] != NULL)
+		return 0;  /* Already created, nothing more to do. */
+
+	/* Don't allow time recalculation while creating a new task. */
+	mutex_lock(&boost_mutex);
+	VERBOSE_PRINTK_STRING("Creating rcu_torture_boost task");
+	boost_tasks[cpu] = kthread_create_on_node(rcu_torture_boost, NULL,
+						  cpu_to_node(cpu),
+						  "rcu_torture_boost");
+	if (IS_ERR(boost_tasks[cpu])) {
+		retval = PTR_ERR(boost_tasks[cpu]);
+		VERBOSE_PRINTK_STRING("rcu_torture_boost task create failed");
+		n_rcu_torture_boost_ktrerror++;
+		boost_tasks[cpu] = NULL;
+		mutex_unlock(&boost_mutex);
+		return retval;
+	}
+	kthread_bind(boost_tasks[cpu], cpu);
+	wake_up_process(boost_tasks[cpu]);
+	mutex_unlock(&boost_mutex);
+	return 0;
+}
+
+/*
+ * Cause the rcutorture test to shutdown the system after the test has
+ * run for the time specified by the shutdown_secs module parameter.
+ */
+static int
+rcu_torture_shutdown(void *arg)
+{
+	long delta;
+	unsigned long jiffies_snap;
+
+	VERBOSE_PRINTK_STRING("rcu_torture_shutdown task started");
+	jiffies_snap = ACCESS_ONCE(jiffies);
+	while (ULONG_CMP_LT(jiffies_snap, shutdown_time) &&
+	       !kthread_should_stop()) {
+		delta = shutdown_time - jiffies_snap;
+		if (verbose)
+			pr_alert("%s" TORTURE_FLAG
+				 "rcu_torture_shutdown task: %lu jiffies remaining\n",
+				 torture_type, delta);
+		schedule_timeout_interruptible(delta);
+		jiffies_snap = ACCESS_ONCE(jiffies);
+	}
+	if (kthread_should_stop()) {
+		VERBOSE_PRINTK_STRING("rcu_torture_shutdown task stopping");
+		return 0;
+	}
+
+	/* OK, shut down the system. */
+
+	VERBOSE_PRINTK_STRING("rcu_torture_shutdown task shutting down system");
+	shutdown_task = NULL;	/* Avoid self-kill deadlock. */
+	rcu_torture_cleanup();	/* Get the success/failure message. */
+	kernel_power_off();	/* Shut down the system. */
+	return 0;
+}
+
+#ifdef CONFIG_HOTPLUG_CPU
+
+/*
+ * Execute random CPU-hotplug operations at the interval specified
+ * by the onoff_interval.
+ */
+static int
+rcu_torture_onoff(void *arg)
+{
+	int cpu;
+	unsigned long delta;
+	int maxcpu = -1;
+	DEFINE_RCU_RANDOM(rand);
+	int ret;
+	unsigned long starttime;
+
+	VERBOSE_PRINTK_STRING("rcu_torture_onoff task started");
+	for_each_online_cpu(cpu)
+		maxcpu = cpu;
+	WARN_ON(maxcpu < 0);
+	if (onoff_holdoff > 0) {
+		VERBOSE_PRINTK_STRING("rcu_torture_onoff begin holdoff");
+		schedule_timeout_interruptible(onoff_holdoff * HZ);
+		VERBOSE_PRINTK_STRING("rcu_torture_onoff end holdoff");
+	}
+	while (!kthread_should_stop()) {
+		cpu = (rcu_random(&rand) >> 4) % (maxcpu + 1);
+		if (cpu_online(cpu) && cpu_is_hotpluggable(cpu)) {
+			if (verbose)
+				pr_alert("%s" TORTURE_FLAG
+					 "rcu_torture_onoff task: offlining %d\n",
+					 torture_type, cpu);
+			starttime = jiffies;
+			n_offline_attempts++;
+			ret = cpu_down(cpu);
+			if (ret) {
+				if (verbose)
+					pr_alert("%s" TORTURE_FLAG
+						 "rcu_torture_onoff task: offline %d failed: errno %d\n",
+						 torture_type, cpu, ret);
+			} else {
+				if (verbose)
+					pr_alert("%s" TORTURE_FLAG
+						 "rcu_torture_onoff task: offlined %d\n",
+						 torture_type, cpu);
+				n_offline_successes++;
+				delta = jiffies - starttime;
+				sum_offline += delta;
+				if (min_offline < 0) {
+					min_offline = delta;
+					max_offline = delta;
+				}
+				if (min_offline > delta)
+					min_offline = delta;
+				if (max_offline < delta)
+					max_offline = delta;
+			}
+		} else if (cpu_is_hotpluggable(cpu)) {
+			if (verbose)
+				pr_alert("%s" TORTURE_FLAG
+					 "rcu_torture_onoff task: onlining %d\n",
+					 torture_type, cpu);
+			starttime = jiffies;
+			n_online_attempts++;
+			ret = cpu_up(cpu);
+			if (ret) {
+				if (verbose)
+					pr_alert("%s" TORTURE_FLAG
+						 "rcu_torture_onoff task: online %d failed: errno %d\n",
+						 torture_type, cpu, ret);
+			} else {
+				if (verbose)
+					pr_alert("%s" TORTURE_FLAG
+						 "rcu_torture_onoff task: onlined %d\n",
+						 torture_type, cpu);
+				n_online_successes++;
+				delta = jiffies - starttime;
+				sum_online += delta;
+				if (min_online < 0) {
+					min_online = delta;
+					max_online = delta;
+				}
+				if (min_online > delta)
+					min_online = delta;
+				if (max_online < delta)
+					max_online = delta;
+			}
+		}
+		schedule_timeout_interruptible(onoff_interval * HZ);
+	}
+	VERBOSE_PRINTK_STRING("rcu_torture_onoff task stopping");
+	return 0;
+}
+
+static int
+rcu_torture_onoff_init(void)
+{
+	int ret;
+
+	if (onoff_interval <= 0)
+		return 0;
+	onoff_task = kthread_run(rcu_torture_onoff, NULL, "rcu_torture_onoff");
+	if (IS_ERR(onoff_task)) {
+		ret = PTR_ERR(onoff_task);
+		onoff_task = NULL;
+		return ret;
+	}
+	return 0;
+}
+
+static void rcu_torture_onoff_cleanup(void)
+{
+	if (onoff_task == NULL)
+		return;
+	VERBOSE_PRINTK_STRING("Stopping rcu_torture_onoff task");
+	kthread_stop(onoff_task);
+	onoff_task = NULL;
+}
+
+#else /* #ifdef CONFIG_HOTPLUG_CPU */
+
+static int
+rcu_torture_onoff_init(void)
+{
+	return 0;
+}
+
+static void rcu_torture_onoff_cleanup(void)
+{
+}
+
+#endif /* #else #ifdef CONFIG_HOTPLUG_CPU */
+
+/*
+ * CPU-stall kthread.  It waits as specified by stall_cpu_holdoff, then
+ * induces a CPU stall for the time specified by stall_cpu.
+ */
+static int rcu_torture_stall(void *args)
+{
+	unsigned long stop_at;
+
+	VERBOSE_PRINTK_STRING("rcu_torture_stall task started");
+	if (stall_cpu_holdoff > 0) {
+		VERBOSE_PRINTK_STRING("rcu_torture_stall begin holdoff");
+		schedule_timeout_interruptible(stall_cpu_holdoff * HZ);
+		VERBOSE_PRINTK_STRING("rcu_torture_stall end holdoff");
+	}
+	if (!kthread_should_stop()) {
+		stop_at = get_seconds() + stall_cpu;
+		/* RCU CPU stall is expected behavior in following code. */
+		pr_alert("rcu_torture_stall start.\n");
+		rcu_read_lock();
+		preempt_disable();
+		while (ULONG_CMP_LT(get_seconds(), stop_at))
+			continue;  /* Induce RCU CPU stall warning. */
+		preempt_enable();
+		rcu_read_unlock();
+		pr_alert("rcu_torture_stall end.\n");
+	}
+	rcutorture_shutdown_absorb("rcu_torture_stall");
+	while (!kthread_should_stop())
+		schedule_timeout_interruptible(10 * HZ);
+	return 0;
+}
+
+/* Spawn CPU-stall kthread, if stall_cpu specified. */
+static int __init rcu_torture_stall_init(void)
+{
+	int ret;
+
+	if (stall_cpu <= 0)
+		return 0;
+	stall_task = kthread_run(rcu_torture_stall, NULL, "rcu_torture_stall");
+	if (IS_ERR(stall_task)) {
+		ret = PTR_ERR(stall_task);
+		stall_task = NULL;
+		return ret;
+	}
+	return 0;
+}
+
+/* Clean up after the CPU-stall kthread, if one was spawned. */
+static void rcu_torture_stall_cleanup(void)
+{
+	if (stall_task == NULL)
+		return;
+	VERBOSE_PRINTK_STRING("Stopping rcu_torture_stall_task.");
+	kthread_stop(stall_task);
+	stall_task = NULL;
+}
+
+/* Callback function for RCU barrier testing. */
+void rcu_torture_barrier_cbf(struct rcu_head *rcu)
+{
+	atomic_inc(&barrier_cbs_invoked);
+}
+
+/* kthread function to register callbacks used to test RCU barriers. */
+static int rcu_torture_barrier_cbs(void *arg)
+{
+	long myid = (long)arg;
+	bool lastphase = 0;
+	struct rcu_head rcu;
+
+	init_rcu_head_on_stack(&rcu);
+	VERBOSE_PRINTK_STRING("rcu_torture_barrier_cbs task started");
+	set_user_nice(current, 19);
+	do {
+		wait_event(barrier_cbs_wq[myid],
+			   barrier_phase != lastphase ||
+			   kthread_should_stop() ||
+			   fullstop != FULLSTOP_DONTSTOP);
+		lastphase = barrier_phase;
+		smp_mb(); /* ensure barrier_phase load before ->call(). */
+		if (kthread_should_stop() || fullstop != FULLSTOP_DONTSTOP)
+			break;
+		cur_ops->call(&rcu, rcu_torture_barrier_cbf);
+		if (atomic_dec_and_test(&barrier_cbs_count))
+			wake_up(&barrier_wq);
+	} while (!kthread_should_stop() && fullstop == FULLSTOP_DONTSTOP);
+	VERBOSE_PRINTK_STRING("rcu_torture_barrier_cbs task stopping");
+	rcutorture_shutdown_absorb("rcu_torture_barrier_cbs");
+	while (!kthread_should_stop())
+		schedule_timeout_interruptible(1);
+	cur_ops->cb_barrier();
+	destroy_rcu_head_on_stack(&rcu);
+	return 0;
+}
+
+/* kthread function to drive and coordinate RCU barrier testing. */
+static int rcu_torture_barrier(void *arg)
+{
+	int i;
+
+	VERBOSE_PRINTK_STRING("rcu_torture_barrier task starting");
+	do {
+		atomic_set(&barrier_cbs_invoked, 0);
+		atomic_set(&barrier_cbs_count, n_barrier_cbs);
+		smp_mb(); /* Ensure barrier_phase after prior assignments. */
+		barrier_phase = !barrier_phase;
+		for (i = 0; i < n_barrier_cbs; i++)
+			wake_up(&barrier_cbs_wq[i]);
+		wait_event(barrier_wq,
+			   atomic_read(&barrier_cbs_count) == 0 ||
+			   kthread_should_stop() ||
+			   fullstop != FULLSTOP_DONTSTOP);
+		if (kthread_should_stop() || fullstop != FULLSTOP_DONTSTOP)
+			break;
+		n_barrier_attempts++;
+		cur_ops->cb_barrier();
+		if (atomic_read(&barrier_cbs_invoked) != n_barrier_cbs) {
+			n_rcu_torture_barrier_error++;
+			WARN_ON_ONCE(1);
+		}
+		n_barrier_successes++;
+		schedule_timeout_interruptible(HZ / 10);
+	} while (!kthread_should_stop() && fullstop == FULLSTOP_DONTSTOP);
+	VERBOSE_PRINTK_STRING("rcu_torture_barrier task stopping");
+	rcutorture_shutdown_absorb("rcu_torture_barrier");
+	while (!kthread_should_stop())
+		schedule_timeout_interruptible(1);
+	return 0;
+}
+
+/* Initialize RCU barrier testing. */
+static int rcu_torture_barrier_init(void)
+{
+	int i;
+	int ret;
+
+	if (n_barrier_cbs == 0)
+		return 0;
+	if (cur_ops->call == NULL || cur_ops->cb_barrier == NULL) {
+		pr_alert("%s" TORTURE_FLAG
+			 " Call or barrier ops missing for %s,\n",
+			 torture_type, cur_ops->name);
+		pr_alert("%s" TORTURE_FLAG
+			 " RCU barrier testing omitted from run.\n",
+			 torture_type);
+		return 0;
+	}
+	atomic_set(&barrier_cbs_count, 0);
+	atomic_set(&barrier_cbs_invoked, 0);
+	barrier_cbs_tasks =
+		kzalloc(n_barrier_cbs * sizeof(barrier_cbs_tasks[0]),
+			GFP_KERNEL);
+	barrier_cbs_wq =
+		kzalloc(n_barrier_cbs * sizeof(barrier_cbs_wq[0]),
+			GFP_KERNEL);
+	if (barrier_cbs_tasks == NULL || !barrier_cbs_wq)
+		return -ENOMEM;
+	for (i = 0; i < n_barrier_cbs; i++) {
+		init_waitqueue_head(&barrier_cbs_wq[i]);
+		barrier_cbs_tasks[i] = kthread_run(rcu_torture_barrier_cbs,
+						   (void *)(long)i,
+						   "rcu_torture_barrier_cbs");
+		if (IS_ERR(barrier_cbs_tasks[i])) {
+			ret = PTR_ERR(barrier_cbs_tasks[i]);
+			VERBOSE_PRINTK_ERRSTRING("Failed to create rcu_torture_barrier_cbs");
+			barrier_cbs_tasks[i] = NULL;
+			return ret;
+		}
+	}
+	barrier_task = kthread_run(rcu_torture_barrier, NULL,
+				   "rcu_torture_barrier");
+	if (IS_ERR(barrier_task)) {
+		ret = PTR_ERR(barrier_task);
+		VERBOSE_PRINTK_ERRSTRING("Failed to create rcu_torture_barrier");
+		barrier_task = NULL;
+	}
+	return 0;
+}
+
+/* Clean up after RCU barrier testing. */
+static void rcu_torture_barrier_cleanup(void)
+{
+	int i;
+
+	if (barrier_task != NULL) {
+		VERBOSE_PRINTK_STRING("Stopping rcu_torture_barrier task");
+		kthread_stop(barrier_task);
+		barrier_task = NULL;
+	}
+	if (barrier_cbs_tasks != NULL) {
+		for (i = 0; i < n_barrier_cbs; i++) {
+			if (barrier_cbs_tasks[i] != NULL) {
+				VERBOSE_PRINTK_STRING("Stopping rcu_torture_barrier_cbs task");
+				kthread_stop(barrier_cbs_tasks[i]);
+				barrier_cbs_tasks[i] = NULL;
+			}
+		}
+		kfree(barrier_cbs_tasks);
+		barrier_cbs_tasks = NULL;
+	}
+	if (barrier_cbs_wq != NULL) {
+		kfree(barrier_cbs_wq);
+		barrier_cbs_wq = NULL;
+	}
+}
+
+static int rcutorture_cpu_notify(struct notifier_block *self,
+				 unsigned long action, void *hcpu)
+{
+	long cpu = (long)hcpu;
+
+	switch (action) {
+	case CPU_ONLINE:
+	case CPU_DOWN_FAILED:
+		(void)rcutorture_booster_init(cpu);
+		break;
+	case CPU_DOWN_PREPARE:
+		rcutorture_booster_cleanup(cpu);
+		break;
+	default:
+		break;
+	}
+	return NOTIFY_OK;
+}
+
+static struct notifier_block rcutorture_cpu_nb = {
+	.notifier_call = rcutorture_cpu_notify,
+};
+
+static void
+rcu_torture_cleanup(void)
+{
+	int i;
+
+	mutex_lock(&fullstop_mutex);
+	rcutorture_record_test_transition();
+	if (fullstop == FULLSTOP_SHUTDOWN) {
+		pr_warn(/* but going down anyway, so... */
+		       "Concurrent 'rmmod rcutorture' and shutdown illegal!\n");
+		mutex_unlock(&fullstop_mutex);
+		schedule_timeout_uninterruptible(10);
+		if (cur_ops->cb_barrier != NULL)
+			cur_ops->cb_barrier();
+		return;
+	}
+	fullstop = FULLSTOP_RMMOD;
+	mutex_unlock(&fullstop_mutex);
+	unregister_reboot_notifier(&rcutorture_shutdown_nb);
+	rcu_torture_barrier_cleanup();
+	rcu_torture_stall_cleanup();
+	if (stutter_task) {
+		VERBOSE_PRINTK_STRING("Stopping rcu_torture_stutter task");
+		kthread_stop(stutter_task);
+	}
+	stutter_task = NULL;
+	if (shuffler_task) {
+		VERBOSE_PRINTK_STRING("Stopping rcu_torture_shuffle task");
+		kthread_stop(shuffler_task);
+		free_cpumask_var(shuffle_tmp_mask);
+	}
+	shuffler_task = NULL;
+
+	if (writer_task) {
+		VERBOSE_PRINTK_STRING("Stopping rcu_torture_writer task");
+		kthread_stop(writer_task);
+	}
+	writer_task = NULL;
+
+	if (reader_tasks) {
+		for (i = 0; i < nrealreaders; i++) {
+			if (reader_tasks[i]) {
+				VERBOSE_PRINTK_STRING(
+					"Stopping rcu_torture_reader task");
+				kthread_stop(reader_tasks[i]);
+			}
+			reader_tasks[i] = NULL;
+		}
+		kfree(reader_tasks);
+		reader_tasks = NULL;
+	}
+	rcu_torture_current = NULL;
+
+	if (fakewriter_tasks) {
+		for (i = 0; i < nfakewriters; i++) {
+			if (fakewriter_tasks[i]) {
+				VERBOSE_PRINTK_STRING(
+					"Stopping rcu_torture_fakewriter task");
+				kthread_stop(fakewriter_tasks[i]);
+			}
+			fakewriter_tasks[i] = NULL;
+		}
+		kfree(fakewriter_tasks);
+		fakewriter_tasks = NULL;
+	}
+
+	if (stats_task) {
+		VERBOSE_PRINTK_STRING("Stopping rcu_torture_stats task");
+		kthread_stop(stats_task);
+	}
+	stats_task = NULL;
+
+	if (fqs_task) {
+		VERBOSE_PRINTK_STRING("Stopping rcu_torture_fqs task");
+		kthread_stop(fqs_task);
+	}
+	fqs_task = NULL;
+	if ((test_boost == 1 && cur_ops->can_boost) ||
+	    test_boost == 2) {
+		unregister_cpu_notifier(&rcutorture_cpu_nb);
+		for_each_possible_cpu(i)
+			rcutorture_booster_cleanup(i);
+	}
+	if (shutdown_task != NULL) {
+		VERBOSE_PRINTK_STRING("Stopping rcu_torture_shutdown task");
+		kthread_stop(shutdown_task);
+	}
+	shutdown_task = NULL;
+	rcu_torture_onoff_cleanup();
+
+	/* Wait for all RCU callbacks to fire.  */
+
+	if (cur_ops->cb_barrier != NULL)
+		cur_ops->cb_barrier();
+
+	rcu_torture_stats_print();  /* -After- the stats thread is stopped! */
+
+	if (atomic_read(&n_rcu_torture_error) || n_rcu_torture_barrier_error)
+		rcu_torture_print_module_parms(cur_ops, "End of test: FAILURE");
+	else if (n_online_successes != n_online_attempts ||
+		 n_offline_successes != n_offline_attempts)
+		rcu_torture_print_module_parms(cur_ops,
+					       "End of test: RCU_HOTPLUG");
+	else
+		rcu_torture_print_module_parms(cur_ops, "End of test: SUCCESS");
+}
+
+#ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD
+static void rcu_torture_leak_cb(struct rcu_head *rhp)
+{
+}
+
+static void rcu_torture_err_cb(struct rcu_head *rhp)
+{
+	/*
+	 * This -might- happen due to race conditions, but is unlikely.
+	 * The scenario that leads to this happening is that the
+	 * first of the pair of duplicate callbacks is queued,
+	 * someone else starts a grace period that includes that
+	 * callback, then the second of the pair must wait for the
+	 * next grace period.  Unlikely, but can happen.  If it
+	 * does happen, the debug-objects subsystem won't have splatted.
+	 */
+	pr_alert("rcutorture: duplicated callback was invoked.\n");
+}
+#endif /* #ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD */
+
+/*
+ * Verify that double-free causes debug-objects to complain, but only
+ * if CONFIG_DEBUG_OBJECTS_RCU_HEAD=y.  Otherwise, say that the test
+ * cannot be carried out.
+ */
+static void rcu_test_debug_objects(void)
+{
+#ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD
+	struct rcu_head rh1;
+	struct rcu_head rh2;
+
+	init_rcu_head_on_stack(&rh1);
+	init_rcu_head_on_stack(&rh2);
+	pr_alert("rcutorture: WARN: Duplicate call_rcu() test starting.\n");
+
+	/* Try to queue the rh2 pair of callbacks for the same grace period. */
+	preempt_disable(); /* Prevent preemption from interrupting test. */
+	rcu_read_lock(); /* Make it impossible to finish a grace period. */
+	call_rcu(&rh1, rcu_torture_leak_cb); /* Start grace period. */
+	local_irq_disable(); /* Make it harder to start a new grace period. */
+	call_rcu(&rh2, rcu_torture_leak_cb);
+	call_rcu(&rh2, rcu_torture_err_cb); /* Duplicate callback. */
+	local_irq_enable();
+	rcu_read_unlock();
+	preempt_enable();
+
+	/* Wait for them all to get done so we can safely return. */
+	rcu_barrier();
+	pr_alert("rcutorture: WARN: Duplicate call_rcu() test complete.\n");
+	destroy_rcu_head_on_stack(&rh1);
+	destroy_rcu_head_on_stack(&rh2);
+#else /* #ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD */
+	pr_alert("rcutorture: !CONFIG_DEBUG_OBJECTS_RCU_HEAD, not testing duplicate call_rcu()\n");
+#endif /* #else #ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD */
+}
+
+static int __init
+rcu_torture_init(void)
+{
+	int i;
+	int cpu;
+	int firsterr = 0;
+	int retval;
+	static struct rcu_torture_ops *torture_ops[] = {
+		&rcu_ops, &rcu_bh_ops, &srcu_ops, &sched_ops,
+	};
+
+	mutex_lock(&fullstop_mutex);
+
+	/* Process args and tell the world that the torturer is on the job. */
+	for (i = 0; i < ARRAY_SIZE(torture_ops); i++) {
+		cur_ops = torture_ops[i];
+		if (strcmp(torture_type, cur_ops->name) == 0)
+			break;
+	}
+	if (i == ARRAY_SIZE(torture_ops)) {
+		pr_alert("rcu-torture: invalid torture type: \"%s\"\n",
+			 torture_type);
+		pr_alert("rcu-torture types:");
+		for (i = 0; i < ARRAY_SIZE(torture_ops); i++)
+			pr_alert(" %s", torture_ops[i]->name);
+		pr_alert("\n");
+		mutex_unlock(&fullstop_mutex);
+		return -EINVAL;
+	}
+	if (cur_ops->fqs == NULL && fqs_duration != 0) {
+		pr_alert("rcu-torture: ->fqs NULL and non-zero fqs_duration, fqs disabled.\n");
+		fqs_duration = 0;
+	}
+	if (cur_ops->init)
+		cur_ops->init(); /* no "goto unwind" prior to this point!!! */
+
+	if (nreaders >= 0)
+		nrealreaders = nreaders;
+	else
+		nrealreaders = 2 * num_online_cpus();
+	rcu_torture_print_module_parms(cur_ops, "Start of test");
+	fullstop = FULLSTOP_DONTSTOP;
+
+	/* Set up the freelist. */
+
+	INIT_LIST_HEAD(&rcu_torture_freelist);
+	for (i = 0; i < ARRAY_SIZE(rcu_tortures); i++) {
+		rcu_tortures[i].rtort_mbtest = 0;
+		list_add_tail(&rcu_tortures[i].rtort_free,
+			      &rcu_torture_freelist);
+	}
+
+	/* Initialize the statistics so that each run gets its own numbers. */
+
+	rcu_torture_current = NULL;
+	rcu_torture_current_version = 0;
+	atomic_set(&n_rcu_torture_alloc, 0);
+	atomic_set(&n_rcu_torture_alloc_fail, 0);
+	atomic_set(&n_rcu_torture_free, 0);
+	atomic_set(&n_rcu_torture_mberror, 0);
+	atomic_set(&n_rcu_torture_error, 0);
+	n_rcu_torture_barrier_error = 0;
+	n_rcu_torture_boost_ktrerror = 0;
+	n_rcu_torture_boost_rterror = 0;
+	n_rcu_torture_boost_failure = 0;
+	n_rcu_torture_boosts = 0;
+	for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++)
+		atomic_set(&rcu_torture_wcount[i], 0);
+	for_each_possible_cpu(cpu) {
+		for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
+			per_cpu(rcu_torture_count, cpu)[i] = 0;
+			per_cpu(rcu_torture_batch, cpu)[i] = 0;
+		}
+	}
+
+	/* Start up the kthreads. */
+
+	VERBOSE_PRINTK_STRING("Creating rcu_torture_writer task");
+	writer_task = kthread_create(rcu_torture_writer, NULL,
+				     "rcu_torture_writer");
+	if (IS_ERR(writer_task)) {
+		firsterr = PTR_ERR(writer_task);
+		VERBOSE_PRINTK_ERRSTRING("Failed to create writer");
+		writer_task = NULL;
+		goto unwind;
+	}
+	wake_up_process(writer_task);
+	fakewriter_tasks = kzalloc(nfakewriters * sizeof(fakewriter_tasks[0]),
+				   GFP_KERNEL);
+	if (fakewriter_tasks == NULL) {
+		VERBOSE_PRINTK_ERRSTRING("out of memory");
+		firsterr = -ENOMEM;
+		goto unwind;
+	}
+	for (i = 0; i < nfakewriters; i++) {
+		VERBOSE_PRINTK_STRING("Creating rcu_torture_fakewriter task");
+		fakewriter_tasks[i] = kthread_run(rcu_torture_fakewriter, NULL,
+						  "rcu_torture_fakewriter");
+		if (IS_ERR(fakewriter_tasks[i])) {
+			firsterr = PTR_ERR(fakewriter_tasks[i]);
+			VERBOSE_PRINTK_ERRSTRING("Failed to create fakewriter");
+			fakewriter_tasks[i] = NULL;
+			goto unwind;
+		}
+	}
+	reader_tasks = kzalloc(nrealreaders * sizeof(reader_tasks[0]),
+			       GFP_KERNEL);
+	if (reader_tasks == NULL) {
+		VERBOSE_PRINTK_ERRSTRING("out of memory");
+		firsterr = -ENOMEM;
+		goto unwind;
+	}
+	for (i = 0; i < nrealreaders; i++) {
+		VERBOSE_PRINTK_STRING("Creating rcu_torture_reader task");
+		reader_tasks[i] = kthread_run(rcu_torture_reader, NULL,
+					      "rcu_torture_reader");
+		if (IS_ERR(reader_tasks[i])) {
+			firsterr = PTR_ERR(reader_tasks[i]);
+			VERBOSE_PRINTK_ERRSTRING("Failed to create reader");
+			reader_tasks[i] = NULL;
+			goto unwind;
+		}
+	}
+	if (stat_interval > 0) {
+		VERBOSE_PRINTK_STRING("Creating rcu_torture_stats task");
+		stats_task = kthread_run(rcu_torture_stats, NULL,
+					"rcu_torture_stats");
+		if (IS_ERR(stats_task)) {
+			firsterr = PTR_ERR(stats_task);
+			VERBOSE_PRINTK_ERRSTRING("Failed to create stats");
+			stats_task = NULL;
+			goto unwind;
+		}
+	}
+	if (test_no_idle_hz) {
+		rcu_idle_cpu = num_online_cpus() - 1;
+
+		if (!alloc_cpumask_var(&shuffle_tmp_mask, GFP_KERNEL)) {
+			firsterr = -ENOMEM;
+			VERBOSE_PRINTK_ERRSTRING("Failed to alloc mask");
+			goto unwind;
+		}
+
+		/* Create the shuffler thread */
+		shuffler_task = kthread_run(rcu_torture_shuffle, NULL,
+					  "rcu_torture_shuffle");
+		if (IS_ERR(shuffler_task)) {
+			free_cpumask_var(shuffle_tmp_mask);
+			firsterr = PTR_ERR(shuffler_task);
+			VERBOSE_PRINTK_ERRSTRING("Failed to create shuffler");
+			shuffler_task = NULL;
+			goto unwind;
+		}
+	}
+	if (stutter < 0)
+		stutter = 0;
+	if (stutter) {
+		/* Create the stutter thread */
+		stutter_task = kthread_run(rcu_torture_stutter, NULL,
+					  "rcu_torture_stutter");
+		if (IS_ERR(stutter_task)) {
+			firsterr = PTR_ERR(stutter_task);
+			VERBOSE_PRINTK_ERRSTRING("Failed to create stutter");
+			stutter_task = NULL;
+			goto unwind;
+		}
+	}
+	if (fqs_duration < 0)
+		fqs_duration = 0;
+	if (fqs_duration) {
+		/* Create the stutter thread */
+		fqs_task = kthread_run(rcu_torture_fqs, NULL,
+				       "rcu_torture_fqs");
+		if (IS_ERR(fqs_task)) {
+			firsterr = PTR_ERR(fqs_task);
+			VERBOSE_PRINTK_ERRSTRING("Failed to create fqs");
+			fqs_task = NULL;
+			goto unwind;
+		}
+	}
+	if (test_boost_interval < 1)
+		test_boost_interval = 1;
+	if (test_boost_duration < 2)
+		test_boost_duration = 2;
+	if ((test_boost == 1 && cur_ops->can_boost) ||
+	    test_boost == 2) {
+
+		boost_starttime = jiffies + test_boost_interval * HZ;
+		register_cpu_notifier(&rcutorture_cpu_nb);
+		for_each_possible_cpu(i) {
+			if (cpu_is_offline(i))
+				continue;  /* Heuristic: CPU can go offline. */
+			retval = rcutorture_booster_init(i);
+			if (retval < 0) {
+				firsterr = retval;
+				goto unwind;
+			}
+		}
+	}
+	if (shutdown_secs > 0) {
+		shutdown_time = jiffies + shutdown_secs * HZ;
+		shutdown_task = kthread_create(rcu_torture_shutdown, NULL,
+					       "rcu_torture_shutdown");
+		if (IS_ERR(shutdown_task)) {
+			firsterr = PTR_ERR(shutdown_task);
+			VERBOSE_PRINTK_ERRSTRING("Failed to create shutdown");
+			shutdown_task = NULL;
+			goto unwind;
+		}
+		wake_up_process(shutdown_task);
+	}
+	i = rcu_torture_onoff_init();
+	if (i != 0) {
+		firsterr = i;
+		goto unwind;
+	}
+	register_reboot_notifier(&rcutorture_shutdown_nb);
+	i = rcu_torture_stall_init();
+	if (i != 0) {
+		firsterr = i;
+		goto unwind;
+	}
+	retval = rcu_torture_barrier_init();
+	if (retval != 0) {
+		firsterr = retval;
+		goto unwind;
+	}
+	if (object_debug)
+		rcu_test_debug_objects();
+	rcutorture_record_test_transition();
+	mutex_unlock(&fullstop_mutex);
+	return 0;
+
+unwind:
+	mutex_unlock(&fullstop_mutex);
+	rcu_torture_cleanup();
+	return firsterr;
+}
+
+module_init(rcu_torture_init);
+module_exit(rcu_torture_cleanup);
diff --git a/kernel/rcu/tree.c b/kernel/rcu/tree.c
new file mode 100644
index 000000000000..8a2c81e86dda
--- /dev/null
+++ b/kernel/rcu/tree.c
@@ -0,0 +1,3403 @@
+/*
+ * Read-Copy Update mechanism for mutual exclusion
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright IBM Corporation, 2008
+ *
+ * Authors: Dipankar Sarma <dipankar@in.ibm.com>
+ *	    Manfred Spraul <manfred@colorfullife.com>
+ *	    Paul E. McKenney <paulmck@linux.vnet.ibm.com> Hierarchical version
+ *
+ * Based on the original work by Paul McKenney <paulmck@us.ibm.com>
+ * and inputs from Rusty Russell, Andrea Arcangeli and Andi Kleen.
+ *
+ * For detailed explanation of Read-Copy Update mechanism see -
+ *	Documentation/RCU
+ */
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/smp.h>
+#include <linux/rcupdate.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/nmi.h>
+#include <linux/atomic.h>
+#include <linux/bitops.h>
+#include <linux/export.h>
+#include <linux/completion.h>
+#include <linux/moduleparam.h>
+#include <linux/module.h>
+#include <linux/percpu.h>
+#include <linux/notifier.h>
+#include <linux/cpu.h>
+#include <linux/mutex.h>
+#include <linux/time.h>
+#include <linux/kernel_stat.h>
+#include <linux/wait.h>
+#include <linux/kthread.h>
+#include <linux/prefetch.h>
+#include <linux/delay.h>
+#include <linux/stop_machine.h>
+#include <linux/random.h>
+#include <linux/ftrace_event.h>
+#include <linux/suspend.h>
+
+#include "tree.h"
+#include <trace/events/rcu.h>
+
+#include "rcu.h"
+
+MODULE_ALIAS("rcutree");
+#ifdef MODULE_PARAM_PREFIX
+#undef MODULE_PARAM_PREFIX
+#endif
+#define MODULE_PARAM_PREFIX "rcutree."
+
+/* Data structures. */
+
+static struct lock_class_key rcu_node_class[RCU_NUM_LVLS];
+static struct lock_class_key rcu_fqs_class[RCU_NUM_LVLS];
+
+/*
+ * In order to export the rcu_state name to the tracing tools, it
+ * needs to be added in the __tracepoint_string section.
+ * This requires defining a separate variable tp_<sname>_varname
+ * that points to the string being used, and this will allow
+ * the tracing userspace tools to be able to decipher the string
+ * address to the matching string.
+ */
+#define RCU_STATE_INITIALIZER(sname, sabbr, cr) \
+static char sname##_varname[] = #sname; \
+static const char *tp_##sname##_varname __used __tracepoint_string = sname##_varname; \
+struct rcu_state sname##_state = { \
+	.level = { &sname##_state.node[0] }, \
+	.call = cr, \
+	.fqs_state = RCU_GP_IDLE, \
+	.gpnum = 0UL - 300UL, \
+	.completed = 0UL - 300UL, \
+	.orphan_lock = __RAW_SPIN_LOCK_UNLOCKED(&sname##_state.orphan_lock), \
+	.orphan_nxttail = &sname##_state.orphan_nxtlist, \
+	.orphan_donetail = &sname##_state.orphan_donelist, \
+	.barrier_mutex = __MUTEX_INITIALIZER(sname##_state.barrier_mutex), \
+	.onoff_mutex = __MUTEX_INITIALIZER(sname##_state.onoff_mutex), \
+	.name = sname##_varname, \
+	.abbr = sabbr, \
+}; \
+DEFINE_PER_CPU(struct rcu_data, sname##_data)
+
+RCU_STATE_INITIALIZER(rcu_sched, 's', call_rcu_sched);
+RCU_STATE_INITIALIZER(rcu_bh, 'b', call_rcu_bh);
+
+static struct rcu_state *rcu_state;
+LIST_HEAD(rcu_struct_flavors);
+
+/* Increase (but not decrease) the CONFIG_RCU_FANOUT_LEAF at boot time. */
+static int rcu_fanout_leaf = CONFIG_RCU_FANOUT_LEAF;
+module_param(rcu_fanout_leaf, int, 0444);
+int rcu_num_lvls __read_mostly = RCU_NUM_LVLS;
+static int num_rcu_lvl[] = {  /* Number of rcu_nodes at specified level. */
+	NUM_RCU_LVL_0,
+	NUM_RCU_LVL_1,
+	NUM_RCU_LVL_2,
+	NUM_RCU_LVL_3,
+	NUM_RCU_LVL_4,
+};
+int rcu_num_nodes __read_mostly = NUM_RCU_NODES; /* Total # rcu_nodes in use. */
+
+/*
+ * The rcu_scheduler_active variable transitions from zero to one just
+ * before the first task is spawned.  So when this variable is zero, RCU
+ * can assume that there is but one task, allowing RCU to (for example)
+ * optimize synchronize_sched() to a simple barrier().  When this variable
+ * is one, RCU must actually do all the hard work required to detect real
+ * grace periods.  This variable is also used to suppress boot-time false
+ * positives from lockdep-RCU error checking.
+ */
+int rcu_scheduler_active __read_mostly;
+EXPORT_SYMBOL_GPL(rcu_scheduler_active);
+
+/*
+ * The rcu_scheduler_fully_active variable transitions from zero to one
+ * during the early_initcall() processing, which is after the scheduler
+ * is capable of creating new tasks.  So RCU processing (for example,
+ * creating tasks for RCU priority boosting) must be delayed until after
+ * rcu_scheduler_fully_active transitions from zero to one.  We also
+ * currently delay invocation of any RCU callbacks until after this point.
+ *
+ * It might later prove better for people registering RCU callbacks during
+ * early boot to take responsibility for these callbacks, but one step at
+ * a time.
+ */
+static int rcu_scheduler_fully_active __read_mostly;
+
+#ifdef CONFIG_RCU_BOOST
+
+/*
+ * Control variables for per-CPU and per-rcu_node kthreads.  These
+ * handle all flavors of RCU.
+ */
+static DEFINE_PER_CPU(struct task_struct *, rcu_cpu_kthread_task);
+DEFINE_PER_CPU(unsigned int, rcu_cpu_kthread_status);
+DEFINE_PER_CPU(unsigned int, rcu_cpu_kthread_loops);
+DEFINE_PER_CPU(char, rcu_cpu_has_work);
+
+#endif /* #ifdef CONFIG_RCU_BOOST */
+
+static void rcu_boost_kthread_setaffinity(struct rcu_node *rnp, int outgoingcpu);
+static void invoke_rcu_core(void);
+static void invoke_rcu_callbacks(struct rcu_state *rsp, struct rcu_data *rdp);
+
+/*
+ * Track the rcutorture test sequence number and the update version
+ * number within a given test.  The rcutorture_testseq is incremented
+ * on every rcutorture module load and unload, so has an odd value
+ * when a test is running.  The rcutorture_vernum is set to zero
+ * when rcutorture starts and is incremented on each rcutorture update.
+ * These variables enable correlating rcutorture output with the
+ * RCU tracing information.
+ */
+unsigned long rcutorture_testseq;
+unsigned long rcutorture_vernum;
+
+/*
+ * Return true if an RCU grace period is in progress.  The ACCESS_ONCE()s
+ * permit this function to be invoked without holding the root rcu_node
+ * structure's ->lock, but of course results can be subject to change.
+ */
+static int rcu_gp_in_progress(struct rcu_state *rsp)
+{
+	return ACCESS_ONCE(rsp->completed) != ACCESS_ONCE(rsp->gpnum);
+}
+
+/*
+ * Note a quiescent state.  Because we do not need to know
+ * how many quiescent states passed, just if there was at least
+ * one since the start of the grace period, this just sets a flag.
+ * The caller must have disabled preemption.
+ */
+void rcu_sched_qs(int cpu)
+{
+	struct rcu_data *rdp = &per_cpu(rcu_sched_data, cpu);
+
+	if (rdp->passed_quiesce == 0)
+		trace_rcu_grace_period(TPS("rcu_sched"), rdp->gpnum, TPS("cpuqs"));
+	rdp->passed_quiesce = 1;
+}
+
+void rcu_bh_qs(int cpu)
+{
+	struct rcu_data *rdp = &per_cpu(rcu_bh_data, cpu);
+
+	if (rdp->passed_quiesce == 0)
+		trace_rcu_grace_period(TPS("rcu_bh"), rdp->gpnum, TPS("cpuqs"));
+	rdp->passed_quiesce = 1;
+}
+
+/*
+ * Note a context switch.  This is a quiescent state for RCU-sched,
+ * and requires special handling for preemptible RCU.
+ * The caller must have disabled preemption.
+ */
+void rcu_note_context_switch(int cpu)
+{
+	trace_rcu_utilization(TPS("Start context switch"));
+	rcu_sched_qs(cpu);
+	rcu_preempt_note_context_switch(cpu);
+	trace_rcu_utilization(TPS("End context switch"));
+}
+EXPORT_SYMBOL_GPL(rcu_note_context_switch);
+
+static DEFINE_PER_CPU(struct rcu_dynticks, rcu_dynticks) = {
+	.dynticks_nesting = DYNTICK_TASK_EXIT_IDLE,
+	.dynticks = ATOMIC_INIT(1),
+#ifdef CONFIG_NO_HZ_FULL_SYSIDLE
+	.dynticks_idle_nesting = DYNTICK_TASK_NEST_VALUE,
+	.dynticks_idle = ATOMIC_INIT(1),
+#endif /* #ifdef CONFIG_NO_HZ_FULL_SYSIDLE */
+};
+
+static long blimit = 10;	/* Maximum callbacks per rcu_do_batch. */
+static long qhimark = 10000;	/* If this many pending, ignore blimit. */
+static long qlowmark = 100;	/* Once only this many pending, use blimit. */
+
+module_param(blimit, long, 0444);
+module_param(qhimark, long, 0444);
+module_param(qlowmark, long, 0444);
+
+static ulong jiffies_till_first_fqs = ULONG_MAX;
+static ulong jiffies_till_next_fqs = ULONG_MAX;
+
+module_param(jiffies_till_first_fqs, ulong, 0644);
+module_param(jiffies_till_next_fqs, ulong, 0644);
+
+static void rcu_start_gp_advanced(struct rcu_state *rsp, struct rcu_node *rnp,
+				  struct rcu_data *rdp);
+static void force_qs_rnp(struct rcu_state *rsp,
+			 int (*f)(struct rcu_data *rsp, bool *isidle,
+				  unsigned long *maxj),
+			 bool *isidle, unsigned long *maxj);
+static void force_quiescent_state(struct rcu_state *rsp);
+static int rcu_pending(int cpu);
+
+/*
+ * Return the number of RCU-sched batches processed thus far for debug & stats.
+ */
+long rcu_batches_completed_sched(void)
+{
+	return rcu_sched_state.completed;
+}
+EXPORT_SYMBOL_GPL(rcu_batches_completed_sched);
+
+/*
+ * Return the number of RCU BH batches processed thus far for debug & stats.
+ */
+long rcu_batches_completed_bh(void)
+{
+	return rcu_bh_state.completed;
+}
+EXPORT_SYMBOL_GPL(rcu_batches_completed_bh);
+
+/*
+ * Force a quiescent state for RCU BH.
+ */
+void rcu_bh_force_quiescent_state(void)
+{
+	force_quiescent_state(&rcu_bh_state);
+}
+EXPORT_SYMBOL_GPL(rcu_bh_force_quiescent_state);
+
+/*
+ * Record the number of times rcutorture tests have been initiated and
+ * terminated.  This information allows the debugfs tracing stats to be
+ * correlated to the rcutorture messages, even when the rcutorture module
+ * is being repeatedly loaded and unloaded.  In other words, we cannot
+ * store this state in rcutorture itself.
+ */
+void rcutorture_record_test_transition(void)
+{
+	rcutorture_testseq++;
+	rcutorture_vernum = 0;
+}
+EXPORT_SYMBOL_GPL(rcutorture_record_test_transition);
+
+/*
+ * Record the number of writer passes through the current rcutorture test.
+ * This is also used to correlate debugfs tracing stats with the rcutorture
+ * messages.
+ */
+void rcutorture_record_progress(unsigned long vernum)
+{
+	rcutorture_vernum++;
+}
+EXPORT_SYMBOL_GPL(rcutorture_record_progress);
+
+/*
+ * Force a quiescent state for RCU-sched.
+ */
+void rcu_sched_force_quiescent_state(void)
+{
+	force_quiescent_state(&rcu_sched_state);
+}
+EXPORT_SYMBOL_GPL(rcu_sched_force_quiescent_state);
+
+/*
+ * Does the CPU have callbacks ready to be invoked?
+ */
+static int
+cpu_has_callbacks_ready_to_invoke(struct rcu_data *rdp)
+{
+	return &rdp->nxtlist != rdp->nxttail[RCU_DONE_TAIL] &&
+	       rdp->nxttail[RCU_DONE_TAIL] != NULL;
+}
+
+/*
+ * Does the current CPU require a not-yet-started grace period?
+ * The caller must have disabled interrupts to prevent races with
+ * normal callback registry.
+ */
+static int
+cpu_needs_another_gp(struct rcu_state *rsp, struct rcu_data *rdp)
+{
+	int i;
+
+	if (rcu_gp_in_progress(rsp))
+		return 0;  /* No, a grace period is already in progress. */
+	if (rcu_nocb_needs_gp(rsp))
+		return 1;  /* Yes, a no-CBs CPU needs one. */
+	if (!rdp->nxttail[RCU_NEXT_TAIL])
+		return 0;  /* No, this is a no-CBs (or offline) CPU. */
+	if (*rdp->nxttail[RCU_NEXT_READY_TAIL])
+		return 1;  /* Yes, this CPU has newly registered callbacks. */
+	for (i = RCU_WAIT_TAIL; i < RCU_NEXT_TAIL; i++)
+		if (rdp->nxttail[i - 1] != rdp->nxttail[i] &&
+		    ULONG_CMP_LT(ACCESS_ONCE(rsp->completed),
+				 rdp->nxtcompleted[i]))
+			return 1;  /* Yes, CBs for future grace period. */
+	return 0; /* No grace period needed. */
+}
+
+/*
+ * Return the root node of the specified rcu_state structure.
+ */
+static struct rcu_node *rcu_get_root(struct rcu_state *rsp)
+{
+	return &rsp->node[0];
+}
+
+/*
+ * rcu_eqs_enter_common - current CPU is moving towards extended quiescent state
+ *
+ * If the new value of the ->dynticks_nesting counter now is zero,
+ * we really have entered idle, and must do the appropriate accounting.
+ * The caller must have disabled interrupts.
+ */
+static void rcu_eqs_enter_common(struct rcu_dynticks *rdtp, long long oldval,
+				bool user)
+{
+	trace_rcu_dyntick(TPS("Start"), oldval, rdtp->dynticks_nesting);
+	if (!user && !is_idle_task(current)) {
+		struct task_struct *idle __maybe_unused =
+			idle_task(smp_processor_id());
+
+		trace_rcu_dyntick(TPS("Error on entry: not idle task"), oldval, 0);
+		ftrace_dump(DUMP_ORIG);
+		WARN_ONCE(1, "Current pid: %d comm: %s / Idle pid: %d comm: %s",
+			  current->pid, current->comm,
+			  idle->pid, idle->comm); /* must be idle task! */
+	}
+	rcu_prepare_for_idle(smp_processor_id());
+	/* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */
+	smp_mb__before_atomic_inc();  /* See above. */
+	atomic_inc(&rdtp->dynticks);
+	smp_mb__after_atomic_inc();  /* Force ordering with next sojourn. */
+	WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1);
+
+	/*
+	 * It is illegal to enter an extended quiescent state while
+	 * in an RCU read-side critical section.
+	 */
+	rcu_lockdep_assert(!lock_is_held(&rcu_lock_map),
+			   "Illegal idle entry in RCU read-side critical section.");
+	rcu_lockdep_assert(!lock_is_held(&rcu_bh_lock_map),
+			   "Illegal idle entry in RCU-bh read-side critical section.");
+	rcu_lockdep_assert(!lock_is_held(&rcu_sched_lock_map),
+			   "Illegal idle entry in RCU-sched read-side critical section.");
+}
+
+/*
+ * Enter an RCU extended quiescent state, which can be either the
+ * idle loop or adaptive-tickless usermode execution.
+ */
+static void rcu_eqs_enter(bool user)
+{
+	long long oldval;
+	struct rcu_dynticks *rdtp;
+
+	rdtp = this_cpu_ptr(&rcu_dynticks);
+	oldval = rdtp->dynticks_nesting;
+	WARN_ON_ONCE((oldval & DYNTICK_TASK_NEST_MASK) == 0);
+	if ((oldval & DYNTICK_TASK_NEST_MASK) == DYNTICK_TASK_NEST_VALUE)
+		rdtp->dynticks_nesting = 0;
+	else
+		rdtp->dynticks_nesting -= DYNTICK_TASK_NEST_VALUE;
+	rcu_eqs_enter_common(rdtp, oldval, user);
+}
+
+/**
+ * rcu_idle_enter - inform RCU that current CPU is entering idle
+ *
+ * Enter idle mode, in other words, -leave- the mode in which RCU
+ * read-side critical sections can occur.  (Though RCU read-side
+ * critical sections can occur in irq handlers in idle, a possibility
+ * handled by irq_enter() and irq_exit().)
+ *
+ * We crowbar the ->dynticks_nesting field to zero to allow for
+ * the possibility of usermode upcalls having messed up our count
+ * of interrupt nesting level during the prior busy period.
+ */
+void rcu_idle_enter(void)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	rcu_eqs_enter(false);
+	rcu_sysidle_enter(this_cpu_ptr(&rcu_dynticks), 0);
+	local_irq_restore(flags);
+}
+EXPORT_SYMBOL_GPL(rcu_idle_enter);
+
+#ifdef CONFIG_RCU_USER_QS
+/**
+ * rcu_user_enter - inform RCU that we are resuming userspace.
+ *
+ * Enter RCU idle mode right before resuming userspace.  No use of RCU
+ * is permitted between this call and rcu_user_exit(). This way the
+ * CPU doesn't need to maintain the tick for RCU maintenance purposes
+ * when the CPU runs in userspace.
+ */
+void rcu_user_enter(void)
+{
+	rcu_eqs_enter(1);
+}
+#endif /* CONFIG_RCU_USER_QS */
+
+/**
+ * rcu_irq_exit - inform RCU that current CPU is exiting irq towards idle
+ *
+ * Exit from an interrupt handler, which might possibly result in entering
+ * idle mode, in other words, leaving the mode in which read-side critical
+ * sections can occur.
+ *
+ * This code assumes that the idle loop never does anything that might
+ * result in unbalanced calls to irq_enter() and irq_exit().  If your
+ * architecture violates this assumption, RCU will give you what you
+ * deserve, good and hard.  But very infrequently and irreproducibly.
+ *
+ * Use things like work queues to work around this limitation.
+ *
+ * You have been warned.
+ */
+void rcu_irq_exit(void)
+{
+	unsigned long flags;
+	long long oldval;
+	struct rcu_dynticks *rdtp;
+
+	local_irq_save(flags);
+	rdtp = this_cpu_ptr(&rcu_dynticks);
+	oldval = rdtp->dynticks_nesting;
+	rdtp->dynticks_nesting--;
+	WARN_ON_ONCE(rdtp->dynticks_nesting < 0);
+	if (rdtp->dynticks_nesting)
+		trace_rcu_dyntick(TPS("--="), oldval, rdtp->dynticks_nesting);
+	else
+		rcu_eqs_enter_common(rdtp, oldval, true);
+	rcu_sysidle_enter(rdtp, 1);
+	local_irq_restore(flags);
+}
+
+/*
+ * rcu_eqs_exit_common - current CPU moving away from extended quiescent state
+ *
+ * If the new value of the ->dynticks_nesting counter was previously zero,
+ * we really have exited idle, and must do the appropriate accounting.
+ * The caller must have disabled interrupts.
+ */
+static void rcu_eqs_exit_common(struct rcu_dynticks *rdtp, long long oldval,
+			       int user)
+{
+	smp_mb__before_atomic_inc();  /* Force ordering w/previous sojourn. */
+	atomic_inc(&rdtp->dynticks);
+	/* CPUs seeing atomic_inc() must see later RCU read-side crit sects */
+	smp_mb__after_atomic_inc();  /* See above. */
+	WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
+	rcu_cleanup_after_idle(smp_processor_id());
+	trace_rcu_dyntick(TPS("End"), oldval, rdtp->dynticks_nesting);
+	if (!user && !is_idle_task(current)) {
+		struct task_struct *idle __maybe_unused =
+			idle_task(smp_processor_id());
+
+		trace_rcu_dyntick(TPS("Error on exit: not idle task"),
+				  oldval, rdtp->dynticks_nesting);
+		ftrace_dump(DUMP_ORIG);
+		WARN_ONCE(1, "Current pid: %d comm: %s / Idle pid: %d comm: %s",
+			  current->pid, current->comm,
+			  idle->pid, idle->comm); /* must be idle task! */
+	}
+}
+
+/*
+ * Exit an RCU extended quiescent state, which can be either the
+ * idle loop or adaptive-tickless usermode execution.
+ */
+static void rcu_eqs_exit(bool user)
+{
+	struct rcu_dynticks *rdtp;
+	long long oldval;
+
+	rdtp = this_cpu_ptr(&rcu_dynticks);
+	oldval = rdtp->dynticks_nesting;
+	WARN_ON_ONCE(oldval < 0);
+	if (oldval & DYNTICK_TASK_NEST_MASK)
+		rdtp->dynticks_nesting += DYNTICK_TASK_NEST_VALUE;
+	else
+		rdtp->dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
+	rcu_eqs_exit_common(rdtp, oldval, user);
+}
+
+/**
+ * rcu_idle_exit - inform RCU that current CPU is leaving idle
+ *
+ * Exit idle mode, in other words, -enter- the mode in which RCU
+ * read-side critical sections can occur.
+ *
+ * We crowbar the ->dynticks_nesting field to DYNTICK_TASK_NEST to
+ * allow for the possibility of usermode upcalls messing up our count
+ * of interrupt nesting level during the busy period that is just
+ * now starting.
+ */
+void rcu_idle_exit(void)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	rcu_eqs_exit(false);
+	rcu_sysidle_exit(this_cpu_ptr(&rcu_dynticks), 0);
+	local_irq_restore(flags);
+}
+EXPORT_SYMBOL_GPL(rcu_idle_exit);
+
+#ifdef CONFIG_RCU_USER_QS
+/**
+ * rcu_user_exit - inform RCU that we are exiting userspace.
+ *
+ * Exit RCU idle mode while entering the kernel because it can
+ * run a RCU read side critical section anytime.
+ */
+void rcu_user_exit(void)
+{
+	rcu_eqs_exit(1);
+}
+#endif /* CONFIG_RCU_USER_QS */
+
+/**
+ * rcu_irq_enter - inform RCU that current CPU is entering irq away from idle
+ *
+ * Enter an interrupt handler, which might possibly result in exiting
+ * idle mode, in other words, entering the mode in which read-side critical
+ * sections can occur.
+ *
+ * Note that the Linux kernel is fully capable of entering an interrupt
+ * handler that it never exits, for example when doing upcalls to
+ * user mode!  This code assumes that the idle loop never does upcalls to
+ * user mode.  If your architecture does do upcalls from the idle loop (or
+ * does anything else that results in unbalanced calls to the irq_enter()
+ * and irq_exit() functions), RCU will give you what you deserve, good
+ * and hard.  But very infrequently and irreproducibly.
+ *
+ * Use things like work queues to work around this limitation.
+ *
+ * You have been warned.
+ */
+void rcu_irq_enter(void)
+{
+	unsigned long flags;
+	struct rcu_dynticks *rdtp;
+	long long oldval;
+
+	local_irq_save(flags);
+	rdtp = this_cpu_ptr(&rcu_dynticks);
+	oldval = rdtp->dynticks_nesting;
+	rdtp->dynticks_nesting++;
+	WARN_ON_ONCE(rdtp->dynticks_nesting == 0);
+	if (oldval)
+		trace_rcu_dyntick(TPS("++="), oldval, rdtp->dynticks_nesting);
+	else
+		rcu_eqs_exit_common(rdtp, oldval, true);
+	rcu_sysidle_exit(rdtp, 1);
+	local_irq_restore(flags);
+}
+
+/**
+ * rcu_nmi_enter - inform RCU of entry to NMI context
+ *
+ * If the CPU was idle with dynamic ticks active, and there is no
+ * irq handler running, this updates rdtp->dynticks_nmi to let the
+ * RCU grace-period handling know that the CPU is active.
+ */
+void rcu_nmi_enter(void)
+{
+	struct rcu_dynticks *rdtp = this_cpu_ptr(&rcu_dynticks);
+
+	if (rdtp->dynticks_nmi_nesting == 0 &&
+	    (atomic_read(&rdtp->dynticks) & 0x1))
+		return;
+	rdtp->dynticks_nmi_nesting++;
+	smp_mb__before_atomic_inc();  /* Force delay from prior write. */
+	atomic_inc(&rdtp->dynticks);
+	/* CPUs seeing atomic_inc() must see later RCU read-side crit sects */
+	smp_mb__after_atomic_inc();  /* See above. */
+	WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
+}
+
+/**
+ * rcu_nmi_exit - inform RCU of exit from NMI context
+ *
+ * If the CPU was idle with dynamic ticks active, and there is no
+ * irq handler running, this updates rdtp->dynticks_nmi to let the
+ * RCU grace-period handling know that the CPU is no longer active.
+ */
+void rcu_nmi_exit(void)
+{
+	struct rcu_dynticks *rdtp = this_cpu_ptr(&rcu_dynticks);
+
+	if (rdtp->dynticks_nmi_nesting == 0 ||
+	    --rdtp->dynticks_nmi_nesting != 0)
+		return;
+	/* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */
+	smp_mb__before_atomic_inc();  /* See above. */
+	atomic_inc(&rdtp->dynticks);
+	smp_mb__after_atomic_inc();  /* Force delay to next write. */
+	WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1);
+}
+
+/**
+ * __rcu_is_watching - are RCU read-side critical sections safe?
+ *
+ * Return true if RCU is watching the running CPU, which means that
+ * this CPU can safely enter RCU read-side critical sections.  Unlike
+ * rcu_is_watching(), the caller of __rcu_is_watching() must have at
+ * least disabled preemption.
+ */
+bool __rcu_is_watching(void)
+{
+	return atomic_read(this_cpu_ptr(&rcu_dynticks.dynticks)) & 0x1;
+}
+
+/**
+ * rcu_is_watching - see if RCU thinks that the current CPU is idle
+ *
+ * If the current CPU is in its idle loop and is neither in an interrupt
+ * or NMI handler, return true.
+ */
+bool rcu_is_watching(void)
+{
+	int ret;
+
+	preempt_disable();
+	ret = __rcu_is_watching();
+	preempt_enable();
+	return ret;
+}
+EXPORT_SYMBOL_GPL(rcu_is_watching);
+
+#if defined(CONFIG_PROVE_RCU) && defined(CONFIG_HOTPLUG_CPU)
+
+/*
+ * Is the current CPU online?  Disable preemption to avoid false positives
+ * that could otherwise happen due to the current CPU number being sampled,
+ * this task being preempted, its old CPU being taken offline, resuming
+ * on some other CPU, then determining that its old CPU is now offline.
+ * It is OK to use RCU on an offline processor during initial boot, hence
+ * the check for rcu_scheduler_fully_active.  Note also that it is OK
+ * for a CPU coming online to use RCU for one jiffy prior to marking itself
+ * online in the cpu_online_mask.  Similarly, it is OK for a CPU going
+ * offline to continue to use RCU for one jiffy after marking itself
+ * offline in the cpu_online_mask.  This leniency is necessary given the
+ * non-atomic nature of the online and offline processing, for example,
+ * the fact that a CPU enters the scheduler after completing the CPU_DYING
+ * notifiers.
+ *
+ * This is also why RCU internally marks CPUs online during the
+ * CPU_UP_PREPARE phase and offline during the CPU_DEAD phase.
+ *
+ * Disable checking if in an NMI handler because we cannot safely report
+ * errors from NMI handlers anyway.
+ */
+bool rcu_lockdep_current_cpu_online(void)
+{
+	struct rcu_data *rdp;
+	struct rcu_node *rnp;
+	bool ret;
+
+	if (in_nmi())
+		return 1;
+	preempt_disable();
+	rdp = this_cpu_ptr(&rcu_sched_data);
+	rnp = rdp->mynode;
+	ret = (rdp->grpmask & rnp->qsmaskinit) ||
+	      !rcu_scheduler_fully_active;
+	preempt_enable();
+	return ret;
+}
+EXPORT_SYMBOL_GPL(rcu_lockdep_current_cpu_online);
+
+#endif /* #if defined(CONFIG_PROVE_RCU) && defined(CONFIG_HOTPLUG_CPU) */
+
+/**
+ * rcu_is_cpu_rrupt_from_idle - see if idle or immediately interrupted from idle
+ *
+ * If the current CPU is idle or running at a first-level (not nested)
+ * interrupt from idle, return true.  The caller must have at least
+ * disabled preemption.
+ */
+static int rcu_is_cpu_rrupt_from_idle(void)
+{
+	return __this_cpu_read(rcu_dynticks.dynticks_nesting) <= 1;
+}
+
+/*
+ * Snapshot the specified CPU's dynticks counter so that we can later
+ * credit them with an implicit quiescent state.  Return 1 if this CPU
+ * is in dynticks idle mode, which is an extended quiescent state.
+ */
+static int dyntick_save_progress_counter(struct rcu_data *rdp,
+					 bool *isidle, unsigned long *maxj)
+{
+	rdp->dynticks_snap = atomic_add_return(0, &rdp->dynticks->dynticks);
+	rcu_sysidle_check_cpu(rdp, isidle, maxj);
+	return (rdp->dynticks_snap & 0x1) == 0;
+}
+
+/*
+ * Return true if the specified CPU has passed through a quiescent
+ * state by virtue of being in or having passed through an dynticks
+ * idle state since the last call to dyntick_save_progress_counter()
+ * for this same CPU, or by virtue of having been offline.
+ */
+static int rcu_implicit_dynticks_qs(struct rcu_data *rdp,
+				    bool *isidle, unsigned long *maxj)
+{
+	unsigned int curr;
+	unsigned int snap;
+
+	curr = (unsigned int)atomic_add_return(0, &rdp->dynticks->dynticks);
+	snap = (unsigned int)rdp->dynticks_snap;
+
+	/*
+	 * If the CPU passed through or entered a dynticks idle phase with
+	 * no active irq/NMI handlers, then we can safely pretend that the CPU
+	 * already acknowledged the request to pass through a quiescent
+	 * state.  Either way, that CPU cannot possibly be in an RCU
+	 * read-side critical section that started before the beginning
+	 * of the current RCU grace period.
+	 */
+	if ((curr & 0x1) == 0 || UINT_CMP_GE(curr, snap + 2)) {
+		trace_rcu_fqs(rdp->rsp->name, rdp->gpnum, rdp->cpu, TPS("dti"));
+		rdp->dynticks_fqs++;
+		return 1;
+	}
+
+	/*
+	 * Check for the CPU being offline, but only if the grace period
+	 * is old enough.  We don't need to worry about the CPU changing
+	 * state: If we see it offline even once, it has been through a
+	 * quiescent state.
+	 *
+	 * The reason for insisting that the grace period be at least
+	 * one jiffy old is that CPUs that are not quite online and that
+	 * have just gone offline can still execute RCU read-side critical
+	 * sections.
+	 */
+	if (ULONG_CMP_GE(rdp->rsp->gp_start + 2, jiffies))
+		return 0;  /* Grace period is not old enough. */
+	barrier();
+	if (cpu_is_offline(rdp->cpu)) {
+		trace_rcu_fqs(rdp->rsp->name, rdp->gpnum, rdp->cpu, TPS("ofl"));
+		rdp->offline_fqs++;
+		return 1;
+	}
+
+	/*
+	 * There is a possibility that a CPU in adaptive-ticks state
+	 * might run in the kernel with the scheduling-clock tick disabled
+	 * for an extended time period.  Invoke rcu_kick_nohz_cpu() to
+	 * force the CPU to restart the scheduling-clock tick in this
+	 * CPU is in this state.
+	 */
+	rcu_kick_nohz_cpu(rdp->cpu);
+
+	return 0;
+}
+
+static void record_gp_stall_check_time(struct rcu_state *rsp)
+{
+	unsigned long j = ACCESS_ONCE(jiffies);
+
+	rsp->gp_start = j;
+	smp_wmb(); /* Record start time before stall time. */
+	rsp->jiffies_stall = j + rcu_jiffies_till_stall_check();
+}
+
+/*
+ * Dump stacks of all tasks running on stalled CPUs.  This is a fallback
+ * for architectures that do not implement trigger_all_cpu_backtrace().
+ * The NMI-triggered stack traces are more accurate because they are
+ * printed by the target CPU.
+ */
+static void rcu_dump_cpu_stacks(struct rcu_state *rsp)
+{
+	int cpu;
+	unsigned long flags;
+	struct rcu_node *rnp;
+
+	rcu_for_each_leaf_node(rsp, rnp) {
+		raw_spin_lock_irqsave(&rnp->lock, flags);
+		if (rnp->qsmask != 0) {
+			for (cpu = 0; cpu <= rnp->grphi - rnp->grplo; cpu++)
+				if (rnp->qsmask & (1UL << cpu))
+					dump_cpu_task(rnp->grplo + cpu);
+		}
+		raw_spin_unlock_irqrestore(&rnp->lock, flags);
+	}
+}
+
+static void print_other_cpu_stall(struct rcu_state *rsp)
+{
+	int cpu;
+	long delta;
+	unsigned long flags;
+	int ndetected = 0;
+	struct rcu_node *rnp = rcu_get_root(rsp);
+	long totqlen = 0;
+
+	/* Only let one CPU complain about others per time interval. */
+
+	raw_spin_lock_irqsave(&rnp->lock, flags);
+	delta = jiffies - rsp->jiffies_stall;
+	if (delta < RCU_STALL_RAT_DELAY || !rcu_gp_in_progress(rsp)) {
+		raw_spin_unlock_irqrestore(&rnp->lock, flags);
+		return;
+	}
+	rsp->jiffies_stall = jiffies + 3 * rcu_jiffies_till_stall_check() + 3;
+	raw_spin_unlock_irqrestore(&rnp->lock, flags);
+
+	/*
+	 * OK, time to rat on our buddy...
+	 * See Documentation/RCU/stallwarn.txt for info on how to debug
+	 * RCU CPU stall warnings.
+	 */
+	pr_err("INFO: %s detected stalls on CPUs/tasks:",
+	       rsp->name);
+	print_cpu_stall_info_begin();
+	rcu_for_each_leaf_node(rsp, rnp) {
+		raw_spin_lock_irqsave(&rnp->lock, flags);
+		ndetected += rcu_print_task_stall(rnp);
+		if (rnp->qsmask != 0) {
+			for (cpu = 0; cpu <= rnp->grphi - rnp->grplo; cpu++)
+				if (rnp->qsmask & (1UL << cpu)) {
+					print_cpu_stall_info(rsp,
+							     rnp->grplo + cpu);
+					ndetected++;
+				}
+		}
+		raw_spin_unlock_irqrestore(&rnp->lock, flags);
+	}
+
+	/*
+	 * Now rat on any tasks that got kicked up to the root rcu_node
+	 * due to CPU offlining.
+	 */
+	rnp = rcu_get_root(rsp);
+	raw_spin_lock_irqsave(&rnp->lock, flags);
+	ndetected += rcu_print_task_stall(rnp);
+	raw_spin_unlock_irqrestore(&rnp->lock, flags);
+
+	print_cpu_stall_info_end();
+	for_each_possible_cpu(cpu)
+		totqlen += per_cpu_ptr(rsp->rda, cpu)->qlen;
+	pr_cont("(detected by %d, t=%ld jiffies, g=%lu, c=%lu, q=%lu)\n",
+	       smp_processor_id(), (long)(jiffies - rsp->gp_start),
+	       rsp->gpnum, rsp->completed, totqlen);
+	if (ndetected == 0)
+		pr_err("INFO: Stall ended before state dump start\n");
+	else if (!trigger_all_cpu_backtrace())
+		rcu_dump_cpu_stacks(rsp);
+
+	/* Complain about tasks blocking the grace period. */
+
+	rcu_print_detail_task_stall(rsp);
+
+	force_quiescent_state(rsp);  /* Kick them all. */
+}
+
+static void print_cpu_stall(struct rcu_state *rsp)
+{
+	int cpu;
+	unsigned long flags;
+	struct rcu_node *rnp = rcu_get_root(rsp);
+	long totqlen = 0;
+
+	/*
+	 * OK, time to rat on ourselves...
+	 * See Documentation/RCU/stallwarn.txt for info on how to debug
+	 * RCU CPU stall warnings.
+	 */
+	pr_err("INFO: %s self-detected stall on CPU", rsp->name);
+	print_cpu_stall_info_begin();
+	print_cpu_stall_info(rsp, smp_processor_id());
+	print_cpu_stall_info_end();
+	for_each_possible_cpu(cpu)
+		totqlen += per_cpu_ptr(rsp->rda, cpu)->qlen;
+	pr_cont(" (t=%lu jiffies g=%lu c=%lu q=%lu)\n",
+		jiffies - rsp->gp_start, rsp->gpnum, rsp->completed, totqlen);
+	if (!trigger_all_cpu_backtrace())
+		dump_stack();
+
+	raw_spin_lock_irqsave(&rnp->lock, flags);
+	if (ULONG_CMP_GE(jiffies, rsp->jiffies_stall))
+		rsp->jiffies_stall = jiffies +
+				     3 * rcu_jiffies_till_stall_check() + 3;
+	raw_spin_unlock_irqrestore(&rnp->lock, flags);
+
+	set_need_resched();  /* kick ourselves to get things going. */
+}
+
+static void check_cpu_stall(struct rcu_state *rsp, struct rcu_data *rdp)
+{
+	unsigned long completed;
+	unsigned long gpnum;
+	unsigned long gps;
+	unsigned long j;
+	unsigned long js;
+	struct rcu_node *rnp;
+
+	if (rcu_cpu_stall_suppress || !rcu_gp_in_progress(rsp))
+		return;
+	j = ACCESS_ONCE(jiffies);
+
+	/*
+	 * Lots of memory barriers to reject false positives.
+	 *
+	 * The idea is to pick up rsp->gpnum, then rsp->jiffies_stall,
+	 * then rsp->gp_start, and finally rsp->completed.  These values
+	 * are updated in the opposite order with memory barriers (or
+	 * equivalent) during grace-period initialization and cleanup.
+	 * Now, a false positive can occur if we get an new value of
+	 * rsp->gp_start and a old value of rsp->jiffies_stall.  But given
+	 * the memory barriers, the only way that this can happen is if one
+	 * grace period ends and another starts between these two fetches.
+	 * Detect this by comparing rsp->completed with the previous fetch
+	 * from rsp->gpnum.
+	 *
+	 * Given this check, comparisons of jiffies, rsp->jiffies_stall,
+	 * and rsp->gp_start suffice to forestall false positives.
+	 */
+	gpnum = ACCESS_ONCE(rsp->gpnum);
+	smp_rmb(); /* Pick up ->gpnum first... */
+	js = ACCESS_ONCE(rsp->jiffies_stall);
+	smp_rmb(); /* ...then ->jiffies_stall before the rest... */
+	gps = ACCESS_ONCE(rsp->gp_start);
+	smp_rmb(); /* ...and finally ->gp_start before ->completed. */
+	completed = ACCESS_ONCE(rsp->completed);
+	if (ULONG_CMP_GE(completed, gpnum) ||
+	    ULONG_CMP_LT(j, js) ||
+	    ULONG_CMP_GE(gps, js))
+		return; /* No stall or GP completed since entering function. */
+	rnp = rdp->mynode;
+	if (rcu_gp_in_progress(rsp) &&
+	    (ACCESS_ONCE(rnp->qsmask) & rdp->grpmask)) {
+
+		/* We haven't checked in, so go dump stack. */
+		print_cpu_stall(rsp);
+
+	} else if (rcu_gp_in_progress(rsp) &&
+		   ULONG_CMP_GE(j, js + RCU_STALL_RAT_DELAY)) {
+
+		/* They had a few time units to dump stack, so complain. */
+		print_other_cpu_stall(rsp);
+	}
+}
+
+/**
+ * rcu_cpu_stall_reset - prevent further stall warnings in current grace period
+ *
+ * Set the stall-warning timeout way off into the future, thus preventing
+ * any RCU CPU stall-warning messages from appearing in the current set of
+ * RCU grace periods.
+ *
+ * The caller must disable hard irqs.
+ */
+void rcu_cpu_stall_reset(void)
+{
+	struct rcu_state *rsp;
+
+	for_each_rcu_flavor(rsp)
+		rsp->jiffies_stall = jiffies + ULONG_MAX / 2;
+}
+
+/*
+ * Initialize the specified rcu_data structure's callback list to empty.
+ */
+static void init_callback_list(struct rcu_data *rdp)
+{
+	int i;
+
+	if (init_nocb_callback_list(rdp))
+		return;
+	rdp->nxtlist = NULL;
+	for (i = 0; i < RCU_NEXT_SIZE; i++)
+		rdp->nxttail[i] = &rdp->nxtlist;
+}
+
+/*
+ * Determine the value that ->completed will have at the end of the
+ * next subsequent grace period.  This is used to tag callbacks so that
+ * a CPU can invoke callbacks in a timely fashion even if that CPU has
+ * been dyntick-idle for an extended period with callbacks under the
+ * influence of RCU_FAST_NO_HZ.
+ *
+ * The caller must hold rnp->lock with interrupts disabled.
+ */
+static unsigned long rcu_cbs_completed(struct rcu_state *rsp,
+				       struct rcu_node *rnp)
+{
+	/*
+	 * If RCU is idle, we just wait for the next grace period.
+	 * But we can only be sure that RCU is idle if we are looking
+	 * at the root rcu_node structure -- otherwise, a new grace
+	 * period might have started, but just not yet gotten around
+	 * to initializing the current non-root rcu_node structure.
+	 */
+	if (rcu_get_root(rsp) == rnp && rnp->gpnum == rnp->completed)
+		return rnp->completed + 1;
+
+	/*
+	 * Otherwise, wait for a possible partial grace period and
+	 * then the subsequent full grace period.
+	 */
+	return rnp->completed + 2;
+}
+
+/*
+ * Trace-event helper function for rcu_start_future_gp() and
+ * rcu_nocb_wait_gp().
+ */
+static void trace_rcu_future_gp(struct rcu_node *rnp, struct rcu_data *rdp,
+				unsigned long c, const char *s)
+{
+	trace_rcu_future_grace_period(rdp->rsp->name, rnp->gpnum,
+				      rnp->completed, c, rnp->level,
+				      rnp->grplo, rnp->grphi, s);
+}
+
+/*
+ * Start some future grace period, as needed to handle newly arrived
+ * callbacks.  The required future grace periods are recorded in each
+ * rcu_node structure's ->need_future_gp field.
+ *
+ * The caller must hold the specified rcu_node structure's ->lock.
+ */
+static unsigned long __maybe_unused
+rcu_start_future_gp(struct rcu_node *rnp, struct rcu_data *rdp)
+{
+	unsigned long c;
+	int i;
+	struct rcu_node *rnp_root = rcu_get_root(rdp->rsp);
+
+	/*
+	 * Pick up grace-period number for new callbacks.  If this
+	 * grace period is already marked as needed, return to the caller.
+	 */
+	c = rcu_cbs_completed(rdp->rsp, rnp);
+	trace_rcu_future_gp(rnp, rdp, c, TPS("Startleaf"));
+	if (rnp->need_future_gp[c & 0x1]) {
+		trace_rcu_future_gp(rnp, rdp, c, TPS("Prestartleaf"));
+		return c;
+	}
+
+	/*
+	 * If either this rcu_node structure or the root rcu_node structure
+	 * believe that a grace period is in progress, then we must wait
+	 * for the one following, which is in "c".  Because our request
+	 * will be noticed at the end of the current grace period, we don't
+	 * need to explicitly start one.
+	 */
+	if (rnp->gpnum != rnp->completed ||
+	    ACCESS_ONCE(rnp->gpnum) != ACCESS_ONCE(rnp->completed)) {
+		rnp->need_future_gp[c & 0x1]++;
+		trace_rcu_future_gp(rnp, rdp, c, TPS("Startedleaf"));
+		return c;
+	}
+
+	/*
+	 * There might be no grace period in progress.  If we don't already
+	 * hold it, acquire the root rcu_node structure's lock in order to
+	 * start one (if needed).
+	 */
+	if (rnp != rnp_root)
+		raw_spin_lock(&rnp_root->lock);
+
+	/*
+	 * Get a new grace-period number.  If there really is no grace
+	 * period in progress, it will be smaller than the one we obtained
+	 * earlier.  Adjust callbacks as needed.  Note that even no-CBs
+	 * CPUs have a ->nxtcompleted[] array, so no no-CBs checks needed.
+	 */
+	c = rcu_cbs_completed(rdp->rsp, rnp_root);
+	for (i = RCU_DONE_TAIL; i < RCU_NEXT_TAIL; i++)
+		if (ULONG_CMP_LT(c, rdp->nxtcompleted[i]))
+			rdp->nxtcompleted[i] = c;
+
+	/*
+	 * If the needed for the required grace period is already
+	 * recorded, trace and leave.
+	 */
+	if (rnp_root->need_future_gp[c & 0x1]) {
+		trace_rcu_future_gp(rnp, rdp, c, TPS("Prestartedroot"));
+		goto unlock_out;
+	}
+
+	/* Record the need for the future grace period. */
+	rnp_root->need_future_gp[c & 0x1]++;
+
+	/* If a grace period is not already in progress, start one. */
+	if (rnp_root->gpnum != rnp_root->completed) {
+		trace_rcu_future_gp(rnp, rdp, c, TPS("Startedleafroot"));
+	} else {
+		trace_rcu_future_gp(rnp, rdp, c, TPS("Startedroot"));
+		rcu_start_gp_advanced(rdp->rsp, rnp_root, rdp);
+	}
+unlock_out:
+	if (rnp != rnp_root)
+		raw_spin_unlock(&rnp_root->lock);
+	return c;
+}
+
+/*
+ * Clean up any old requests for the just-ended grace period.  Also return
+ * whether any additional grace periods have been requested.  Also invoke
+ * rcu_nocb_gp_cleanup() in order to wake up any no-callbacks kthreads
+ * waiting for this grace period to complete.
+ */
+static int rcu_future_gp_cleanup(struct rcu_state *rsp, struct rcu_node *rnp)
+{
+	int c = rnp->completed;
+	int needmore;
+	struct rcu_data *rdp = this_cpu_ptr(rsp->rda);
+
+	rcu_nocb_gp_cleanup(rsp, rnp);
+	rnp->need_future_gp[c & 0x1] = 0;
+	needmore = rnp->need_future_gp[(c + 1) & 0x1];
+	trace_rcu_future_gp(rnp, rdp, c,
+			    needmore ? TPS("CleanupMore") : TPS("Cleanup"));
+	return needmore;
+}
+
+/*
+ * If there is room, assign a ->completed number to any callbacks on
+ * this CPU that have not already been assigned.  Also accelerate any
+ * callbacks that were previously assigned a ->completed number that has
+ * since proven to be too conservative, which can happen if callbacks get
+ * assigned a ->completed number while RCU is idle, but with reference to
+ * a non-root rcu_node structure.  This function is idempotent, so it does
+ * not hurt to call it repeatedly.
+ *
+ * The caller must hold rnp->lock with interrupts disabled.
+ */
+static void rcu_accelerate_cbs(struct rcu_state *rsp, struct rcu_node *rnp,
+			       struct rcu_data *rdp)
+{
+	unsigned long c;
+	int i;
+
+	/* If the CPU has no callbacks, nothing to do. */
+	if (!rdp->nxttail[RCU_NEXT_TAIL] || !*rdp->nxttail[RCU_DONE_TAIL])
+		return;
+
+	/*
+	 * Starting from the sublist containing the callbacks most
+	 * recently assigned a ->completed number and working down, find the
+	 * first sublist that is not assignable to an upcoming grace period.
+	 * Such a sublist has something in it (first two tests) and has
+	 * a ->completed number assigned that will complete sooner than
+	 * the ->completed number for newly arrived callbacks (last test).
+	 *
+	 * The key point is that any later sublist can be assigned the
+	 * same ->completed number as the newly arrived callbacks, which
+	 * means that the callbacks in any of these later sublist can be
+	 * grouped into a single sublist, whether or not they have already
+	 * been assigned a ->completed number.
+	 */
+	c = rcu_cbs_completed(rsp, rnp);
+	for (i = RCU_NEXT_TAIL - 1; i > RCU_DONE_TAIL; i--)
+		if (rdp->nxttail[i] != rdp->nxttail[i - 1] &&
+		    !ULONG_CMP_GE(rdp->nxtcompleted[i], c))
+			break;
+
+	/*
+	 * If there are no sublist for unassigned callbacks, leave.
+	 * At the same time, advance "i" one sublist, so that "i" will
+	 * index into the sublist where all the remaining callbacks should
+	 * be grouped into.
+	 */
+	if (++i >= RCU_NEXT_TAIL)
+		return;
+
+	/*
+	 * Assign all subsequent callbacks' ->completed number to the next
+	 * full grace period and group them all in the sublist initially
+	 * indexed by "i".
+	 */
+	for (; i <= RCU_NEXT_TAIL; i++) {
+		rdp->nxttail[i] = rdp->nxttail[RCU_NEXT_TAIL];
+		rdp->nxtcompleted[i] = c;
+	}
+	/* Record any needed additional grace periods. */
+	rcu_start_future_gp(rnp, rdp);
+
+	/* Trace depending on how much we were able to accelerate. */
+	if (!*rdp->nxttail[RCU_WAIT_TAIL])
+		trace_rcu_grace_period(rsp->name, rdp->gpnum, TPS("AccWaitCB"));
+	else
+		trace_rcu_grace_period(rsp->name, rdp->gpnum, TPS("AccReadyCB"));
+}
+
+/*
+ * Move any callbacks whose grace period has completed to the
+ * RCU_DONE_TAIL sublist, then compact the remaining sublists and
+ * assign ->completed numbers to any callbacks in the RCU_NEXT_TAIL
+ * sublist.  This function is idempotent, so it does not hurt to
+ * invoke it repeatedly.  As long as it is not invoked -too- often...
+ *
+ * The caller must hold rnp->lock with interrupts disabled.
+ */
+static void rcu_advance_cbs(struct rcu_state *rsp, struct rcu_node *rnp,
+			    struct rcu_data *rdp)
+{
+	int i, j;
+
+	/* If the CPU has no callbacks, nothing to do. */
+	if (!rdp->nxttail[RCU_NEXT_TAIL] || !*rdp->nxttail[RCU_DONE_TAIL])
+		return;
+
+	/*
+	 * Find all callbacks whose ->completed numbers indicate that they
+	 * are ready to invoke, and put them into the RCU_DONE_TAIL sublist.
+	 */
+	for (i = RCU_WAIT_TAIL; i < RCU_NEXT_TAIL; i++) {
+		if (ULONG_CMP_LT(rnp->completed, rdp->nxtcompleted[i]))
+			break;
+		rdp->nxttail[RCU_DONE_TAIL] = rdp->nxttail[i];
+	}
+	/* Clean up any sublist tail pointers that were misordered above. */
+	for (j = RCU_WAIT_TAIL; j < i; j++)
+		rdp->nxttail[j] = rdp->nxttail[RCU_DONE_TAIL];
+
+	/* Copy down callbacks to fill in empty sublists. */
+	for (j = RCU_WAIT_TAIL; i < RCU_NEXT_TAIL; i++, j++) {
+		if (rdp->nxttail[j] == rdp->nxttail[RCU_NEXT_TAIL])
+			break;
+		rdp->nxttail[j] = rdp->nxttail[i];
+		rdp->nxtcompleted[j] = rdp->nxtcompleted[i];
+	}
+
+	/* Classify any remaining callbacks. */
+	rcu_accelerate_cbs(rsp, rnp, rdp);
+}
+
+/*
+ * Update CPU-local rcu_data state to record the beginnings and ends of
+ * grace periods.  The caller must hold the ->lock of the leaf rcu_node
+ * structure corresponding to the current CPU, and must have irqs disabled.
+ */
+static void __note_gp_changes(struct rcu_state *rsp, struct rcu_node *rnp, struct rcu_data *rdp)
+{
+	/* Handle the ends of any preceding grace periods first. */
+	if (rdp->completed == rnp->completed) {
+
+		/* No grace period end, so just accelerate recent callbacks. */
+		rcu_accelerate_cbs(rsp, rnp, rdp);
+
+	} else {
+
+		/* Advance callbacks. */
+		rcu_advance_cbs(rsp, rnp, rdp);
+
+		/* Remember that we saw this grace-period completion. */
+		rdp->completed = rnp->completed;
+		trace_rcu_grace_period(rsp->name, rdp->gpnum, TPS("cpuend"));
+	}
+
+	if (rdp->gpnum != rnp->gpnum) {
+		/*
+		 * If the current grace period is waiting for this CPU,
+		 * set up to detect a quiescent state, otherwise don't
+		 * go looking for one.
+		 */
+		rdp->gpnum = rnp->gpnum;
+		trace_rcu_grace_period(rsp->name, rdp->gpnum, TPS("cpustart"));
+		rdp->passed_quiesce = 0;
+		rdp->qs_pending = !!(rnp->qsmask & rdp->grpmask);
+		zero_cpu_stall_ticks(rdp);
+	}
+}
+
+static void note_gp_changes(struct rcu_state *rsp, struct rcu_data *rdp)
+{
+	unsigned long flags;
+	struct rcu_node *rnp;
+
+	local_irq_save(flags);
+	rnp = rdp->mynode;
+	if ((rdp->gpnum == ACCESS_ONCE(rnp->gpnum) &&
+	     rdp->completed == ACCESS_ONCE(rnp->completed)) || /* w/out lock. */
+	    !raw_spin_trylock(&rnp->lock)) { /* irqs already off, so later. */
+		local_irq_restore(flags);
+		return;
+	}
+	__note_gp_changes(rsp, rnp, rdp);
+	raw_spin_unlock_irqrestore(&rnp->lock, flags);
+}
+
+/*
+ * Initialize a new grace period.  Return 0 if no grace period required.
+ */
+static int rcu_gp_init(struct rcu_state *rsp)
+{
+	struct rcu_data *rdp;
+	struct rcu_node *rnp = rcu_get_root(rsp);
+
+	rcu_bind_gp_kthread();
+	raw_spin_lock_irq(&rnp->lock);
+	if (rsp->gp_flags == 0) {
+		/* Spurious wakeup, tell caller to go back to sleep.  */
+		raw_spin_unlock_irq(&rnp->lock);
+		return 0;
+	}
+	rsp->gp_flags = 0; /* Clear all flags: New grace period. */
+
+	if (WARN_ON_ONCE(rcu_gp_in_progress(rsp))) {
+		/*
+		 * Grace period already in progress, don't start another.
+		 * Not supposed to be able to happen.
+		 */
+		raw_spin_unlock_irq(&rnp->lock);
+		return 0;
+	}
+
+	/* Advance to a new grace period and initialize state. */
+	record_gp_stall_check_time(rsp);
+	smp_wmb(); /* Record GP times before starting GP. */
+	rsp->gpnum++;
+	trace_rcu_grace_period(rsp->name, rsp->gpnum, TPS("start"));
+	raw_spin_unlock_irq(&rnp->lock);
+
+	/* Exclude any concurrent CPU-hotplug operations. */
+	mutex_lock(&rsp->onoff_mutex);
+
+	/*
+	 * Set the quiescent-state-needed bits in all the rcu_node
+	 * structures for all currently online CPUs in breadth-first order,
+	 * starting from the root rcu_node structure, relying on the layout
+	 * of the tree within the rsp->node[] array.  Note that other CPUs
+	 * will access only the leaves of the hierarchy, thus seeing that no
+	 * grace period is in progress, at least until the corresponding
+	 * leaf node has been initialized.  In addition, we have excluded
+	 * CPU-hotplug operations.
+	 *
+	 * The grace period cannot complete until the initialization
+	 * process finishes, because this kthread handles both.
+	 */
+	rcu_for_each_node_breadth_first(rsp, rnp) {
+		raw_spin_lock_irq(&rnp->lock);
+		rdp = this_cpu_ptr(rsp->rda);
+		rcu_preempt_check_blocked_tasks(rnp);
+		rnp->qsmask = rnp->qsmaskinit;
+		ACCESS_ONCE(rnp->gpnum) = rsp->gpnum;
+		WARN_ON_ONCE(rnp->completed != rsp->completed);
+		ACCESS_ONCE(rnp->completed) = rsp->completed;
+		if (rnp == rdp->mynode)
+			__note_gp_changes(rsp, rnp, rdp);
+		rcu_preempt_boost_start_gp(rnp);
+		trace_rcu_grace_period_init(rsp->name, rnp->gpnum,
+					    rnp->level, rnp->grplo,
+					    rnp->grphi, rnp->qsmask);
+		raw_spin_unlock_irq(&rnp->lock);
+#ifdef CONFIG_PROVE_RCU_DELAY
+		if ((prandom_u32() % (rcu_num_nodes + 1)) == 0 &&
+		    system_state == SYSTEM_RUNNING)
+			udelay(200);
+#endif /* #ifdef CONFIG_PROVE_RCU_DELAY */
+		cond_resched();
+	}
+
+	mutex_unlock(&rsp->onoff_mutex);
+	return 1;
+}
+
+/*
+ * Do one round of quiescent-state forcing.
+ */
+static int rcu_gp_fqs(struct rcu_state *rsp, int fqs_state_in)
+{
+	int fqs_state = fqs_state_in;
+	bool isidle = false;
+	unsigned long maxj;
+	struct rcu_node *rnp = rcu_get_root(rsp);
+
+	rsp->n_force_qs++;
+	if (fqs_state == RCU_SAVE_DYNTICK) {
+		/* Collect dyntick-idle snapshots. */
+		if (is_sysidle_rcu_state(rsp)) {
+			isidle = 1;
+			maxj = jiffies - ULONG_MAX / 4;
+		}
+		force_qs_rnp(rsp, dyntick_save_progress_counter,
+			     &isidle, &maxj);
+		rcu_sysidle_report_gp(rsp, isidle, maxj);
+		fqs_state = RCU_FORCE_QS;
+	} else {
+		/* Handle dyntick-idle and offline CPUs. */
+		isidle = 0;
+		force_qs_rnp(rsp, rcu_implicit_dynticks_qs, &isidle, &maxj);
+	}
+	/* Clear flag to prevent immediate re-entry. */
+	if (ACCESS_ONCE(rsp->gp_flags) & RCU_GP_FLAG_FQS) {
+		raw_spin_lock_irq(&rnp->lock);
+		rsp->gp_flags &= ~RCU_GP_FLAG_FQS;
+		raw_spin_unlock_irq(&rnp->lock);
+	}
+	return fqs_state;
+}
+
+/*
+ * Clean up after the old grace period.
+ */
+static void rcu_gp_cleanup(struct rcu_state *rsp)
+{
+	unsigned long gp_duration;
+	int nocb = 0;
+	struct rcu_data *rdp;
+	struct rcu_node *rnp = rcu_get_root(rsp);
+
+	raw_spin_lock_irq(&rnp->lock);
+	gp_duration = jiffies - rsp->gp_start;
+	if (gp_duration > rsp->gp_max)
+		rsp->gp_max = gp_duration;
+
+	/*
+	 * We know the grace period is complete, but to everyone else
+	 * it appears to still be ongoing.  But it is also the case
+	 * that to everyone else it looks like there is nothing that
+	 * they can do to advance the grace period.  It is therefore
+	 * safe for us to drop the lock in order to mark the grace
+	 * period as completed in all of the rcu_node structures.
+	 */
+	raw_spin_unlock_irq(&rnp->lock);
+
+	/*
+	 * Propagate new ->completed value to rcu_node structures so
+	 * that other CPUs don't have to wait until the start of the next
+	 * grace period to process their callbacks.  This also avoids
+	 * some nasty RCU grace-period initialization races by forcing
+	 * the end of the current grace period to be completely recorded in
+	 * all of the rcu_node structures before the beginning of the next
+	 * grace period is recorded in any of the rcu_node structures.
+	 */
+	rcu_for_each_node_breadth_first(rsp, rnp) {
+		raw_spin_lock_irq(&rnp->lock);
+		ACCESS_ONCE(rnp->completed) = rsp->gpnum;
+		rdp = this_cpu_ptr(rsp->rda);
+		if (rnp == rdp->mynode)
+			__note_gp_changes(rsp, rnp, rdp);
+		nocb += rcu_future_gp_cleanup(rsp, rnp);
+		raw_spin_unlock_irq(&rnp->lock);
+		cond_resched();
+	}
+	rnp = rcu_get_root(rsp);
+	raw_spin_lock_irq(&rnp->lock);
+	rcu_nocb_gp_set(rnp, nocb);
+
+	rsp->completed = rsp->gpnum; /* Declare grace period done. */
+	trace_rcu_grace_period(rsp->name, rsp->completed, TPS("end"));
+	rsp->fqs_state = RCU_GP_IDLE;
+	rdp = this_cpu_ptr(rsp->rda);
+	rcu_advance_cbs(rsp, rnp, rdp);  /* Reduce false positives below. */
+	if (cpu_needs_another_gp(rsp, rdp)) {
+		rsp->gp_flags = RCU_GP_FLAG_INIT;
+		trace_rcu_grace_period(rsp->name,
+				       ACCESS_ONCE(rsp->gpnum),
+				       TPS("newreq"));
+	}
+	raw_spin_unlock_irq(&rnp->lock);
+}
+
+/*
+ * Body of kthread that handles grace periods.
+ */
+static int __noreturn rcu_gp_kthread(void *arg)
+{
+	int fqs_state;
+	int gf;
+	unsigned long j;
+	int ret;
+	struct rcu_state *rsp = arg;
+	struct rcu_node *rnp = rcu_get_root(rsp);
+
+	for (;;) {
+
+		/* Handle grace-period start. */
+		for (;;) {
+			trace_rcu_grace_period(rsp->name,
+					       ACCESS_ONCE(rsp->gpnum),
+					       TPS("reqwait"));
+			wait_event_interruptible(rsp->gp_wq,
+						 ACCESS_ONCE(rsp->gp_flags) &
+						 RCU_GP_FLAG_INIT);
+			if (rcu_gp_init(rsp))
+				break;
+			cond_resched();
+			flush_signals(current);
+			trace_rcu_grace_period(rsp->name,
+					       ACCESS_ONCE(rsp->gpnum),
+					       TPS("reqwaitsig"));
+		}
+
+		/* Handle quiescent-state forcing. */
+		fqs_state = RCU_SAVE_DYNTICK;
+		j = jiffies_till_first_fqs;
+		if (j > HZ) {
+			j = HZ;
+			jiffies_till_first_fqs = HZ;
+		}
+		ret = 0;
+		for (;;) {
+			if (!ret)
+				rsp->jiffies_force_qs = jiffies + j;
+			trace_rcu_grace_period(rsp->name,
+					       ACCESS_ONCE(rsp->gpnum),
+					       TPS("fqswait"));
+			ret = wait_event_interruptible_timeout(rsp->gp_wq,
+					((gf = ACCESS_ONCE(rsp->gp_flags)) &
+					 RCU_GP_FLAG_FQS) ||
+					(!ACCESS_ONCE(rnp->qsmask) &&
+					 !rcu_preempt_blocked_readers_cgp(rnp)),
+					j);
+			/* If grace period done, leave loop. */
+			if (!ACCESS_ONCE(rnp->qsmask) &&
+			    !rcu_preempt_blocked_readers_cgp(rnp))
+				break;
+			/* If time for quiescent-state forcing, do it. */
+			if (ULONG_CMP_GE(jiffies, rsp->jiffies_force_qs) ||
+			    (gf & RCU_GP_FLAG_FQS)) {
+				trace_rcu_grace_period(rsp->name,
+						       ACCESS_ONCE(rsp->gpnum),
+						       TPS("fqsstart"));
+				fqs_state = rcu_gp_fqs(rsp, fqs_state);
+				trace_rcu_grace_period(rsp->name,
+						       ACCESS_ONCE(rsp->gpnum),
+						       TPS("fqsend"));
+				cond_resched();
+			} else {
+				/* Deal with stray signal. */
+				cond_resched();
+				flush_signals(current);
+				trace_rcu_grace_period(rsp->name,
+						       ACCESS_ONCE(rsp->gpnum),
+						       TPS("fqswaitsig"));
+			}
+			j = jiffies_till_next_fqs;
+			if (j > HZ) {
+				j = HZ;
+				jiffies_till_next_fqs = HZ;
+			} else if (j < 1) {
+				j = 1;
+				jiffies_till_next_fqs = 1;
+			}
+		}
+
+		/* Handle grace-period end. */
+		rcu_gp_cleanup(rsp);
+	}
+}
+
+static void rsp_wakeup(struct irq_work *work)
+{
+	struct rcu_state *rsp = container_of(work, struct rcu_state, wakeup_work);
+
+	/* Wake up rcu_gp_kthread() to start the grace period. */
+	wake_up(&rsp->gp_wq);
+}
+
+/*
+ * Start a new RCU grace period if warranted, re-initializing the hierarchy
+ * in preparation for detecting the next grace period.  The caller must hold
+ * the root node's ->lock and hard irqs must be disabled.
+ *
+ * Note that it is legal for a dying CPU (which is marked as offline) to
+ * invoke this function.  This can happen when the dying CPU reports its
+ * quiescent state.
+ */
+static void
+rcu_start_gp_advanced(struct rcu_state *rsp, struct rcu_node *rnp,
+		      struct rcu_data *rdp)
+{
+	if (!rsp->gp_kthread || !cpu_needs_another_gp(rsp, rdp)) {
+		/*
+		 * Either we have not yet spawned the grace-period
+		 * task, this CPU does not need another grace period,
+		 * or a grace period is already in progress.
+		 * Either way, don't start a new grace period.
+		 */
+		return;
+	}
+	rsp->gp_flags = RCU_GP_FLAG_INIT;
+	trace_rcu_grace_period(rsp->name, ACCESS_ONCE(rsp->gpnum),
+			       TPS("newreq"));
+
+	/*
+	 * We can't do wakeups while holding the rnp->lock, as that
+	 * could cause possible deadlocks with the rq->lock. Defer
+	 * the wakeup to interrupt context.  And don't bother waking
+	 * up the running kthread.
+	 */
+	if (current != rsp->gp_kthread)
+		irq_work_queue(&rsp->wakeup_work);
+}
+
+/*
+ * Similar to rcu_start_gp_advanced(), but also advance the calling CPU's
+ * callbacks.  Note that rcu_start_gp_advanced() cannot do this because it
+ * is invoked indirectly from rcu_advance_cbs(), which would result in
+ * endless recursion -- or would do so if it wasn't for the self-deadlock
+ * that is encountered beforehand.
+ */
+static void
+rcu_start_gp(struct rcu_state *rsp)
+{
+	struct rcu_data *rdp = this_cpu_ptr(rsp->rda);
+	struct rcu_node *rnp = rcu_get_root(rsp);
+
+	/*
+	 * If there is no grace period in progress right now, any
+	 * callbacks we have up to this point will be satisfied by the
+	 * next grace period.  Also, advancing the callbacks reduces the
+	 * probability of false positives from cpu_needs_another_gp()
+	 * resulting in pointless grace periods.  So, advance callbacks
+	 * then start the grace period!
+	 */
+	rcu_advance_cbs(rsp, rnp, rdp);
+	rcu_start_gp_advanced(rsp, rnp, rdp);
+}
+
+/*
+ * Report a full set of quiescent states to the specified rcu_state
+ * data structure.  This involves cleaning up after the prior grace
+ * period and letting rcu_start_gp() start up the next grace period
+ * if one is needed.  Note that the caller must hold rnp->lock, which
+ * is released before return.
+ */
+static void rcu_report_qs_rsp(struct rcu_state *rsp, unsigned long flags)
+	__releases(rcu_get_root(rsp)->lock)
+{
+	WARN_ON_ONCE(!rcu_gp_in_progress(rsp));
+	raw_spin_unlock_irqrestore(&rcu_get_root(rsp)->lock, flags);
+	wake_up(&rsp->gp_wq);  /* Memory barrier implied by wake_up() path. */
+}
+
+/*
+ * Similar to rcu_report_qs_rdp(), for which it is a helper function.
+ * Allows quiescent states for a group of CPUs to be reported at one go
+ * to the specified rcu_node structure, though all the CPUs in the group
+ * must be represented by the same rcu_node structure (which need not be
+ * a leaf rcu_node structure, though it often will be).  That structure's
+ * lock must be held upon entry, and it is released before return.
+ */
+static void
+rcu_report_qs_rnp(unsigned long mask, struct rcu_state *rsp,
+		  struct rcu_node *rnp, unsigned long flags)
+	__releases(rnp->lock)
+{
+	struct rcu_node *rnp_c;
+
+	/* Walk up the rcu_node hierarchy. */
+	for (;;) {
+		if (!(rnp->qsmask & mask)) {
+
+			/* Our bit has already been cleared, so done. */
+			raw_spin_unlock_irqrestore(&rnp->lock, flags);
+			return;
+		}
+		rnp->qsmask &= ~mask;
+		trace_rcu_quiescent_state_report(rsp->name, rnp->gpnum,
+						 mask, rnp->qsmask, rnp->level,
+						 rnp->grplo, rnp->grphi,
+						 !!rnp->gp_tasks);
+		if (rnp->qsmask != 0 || rcu_preempt_blocked_readers_cgp(rnp)) {
+
+			/* Other bits still set at this level, so done. */
+			raw_spin_unlock_irqrestore(&rnp->lock, flags);
+			return;
+		}
+		mask = rnp->grpmask;
+		if (rnp->parent == NULL) {
+
+			/* No more levels.  Exit loop holding root lock. */
+
+			break;
+		}
+		raw_spin_unlock_irqrestore(&rnp->lock, flags);
+		rnp_c = rnp;
+		rnp = rnp->parent;
+		raw_spin_lock_irqsave(&rnp->lock, flags);
+		WARN_ON_ONCE(rnp_c->qsmask);
+	}
+
+	/*
+	 * Get here if we are the last CPU to pass through a quiescent
+	 * state for this grace period.  Invoke rcu_report_qs_rsp()
+	 * to clean up and start the next grace period if one is needed.
+	 */
+	rcu_report_qs_rsp(rsp, flags); /* releases rnp->lock. */
+}
+
+/*
+ * Record a quiescent state for the specified CPU to that CPU's rcu_data
+ * structure.  This must be either called from the specified CPU, or
+ * called when the specified CPU is known to be offline (and when it is
+ * also known that no other CPU is concurrently trying to help the offline
+ * CPU).  The lastcomp argument is used to make sure we are still in the
+ * grace period of interest.  We don't want to end the current grace period
+ * based on quiescent states detected in an earlier grace period!
+ */
+static void
+rcu_report_qs_rdp(int cpu, struct rcu_state *rsp, struct rcu_data *rdp)
+{
+	unsigned long flags;
+	unsigned long mask;
+	struct rcu_node *rnp;
+
+	rnp = rdp->mynode;
+	raw_spin_lock_irqsave(&rnp->lock, flags);
+	if (rdp->passed_quiesce == 0 || rdp->gpnum != rnp->gpnum ||
+	    rnp->completed == rnp->gpnum) {
+
+		/*
+		 * The grace period in which this quiescent state was
+		 * recorded has ended, so don't report it upwards.
+		 * We will instead need a new quiescent state that lies
+		 * within the current grace period.
+		 */
+		rdp->passed_quiesce = 0;	/* need qs for new gp. */
+		raw_spin_unlock_irqrestore(&rnp->lock, flags);
+		return;
+	}
+	mask = rdp->grpmask;
+	if ((rnp->qsmask & mask) == 0) {
+		raw_spin_unlock_irqrestore(&rnp->lock, flags);
+	} else {
+		rdp->qs_pending = 0;
+
+		/*
+		 * This GP can't end until cpu checks in, so all of our
+		 * callbacks can be processed during the next GP.
+		 */
+		rcu_accelerate_cbs(rsp, rnp, rdp);
+
+		rcu_report_qs_rnp(mask, rsp, rnp, flags); /* rlses rnp->lock */
+	}
+}
+
+/*
+ * Check to see if there is a new grace period of which this CPU
+ * is not yet aware, and if so, set up local rcu_data state for it.
+ * Otherwise, see if this CPU has just passed through its first
+ * quiescent state for this grace period, and record that fact if so.
+ */
+static void
+rcu_check_quiescent_state(struct rcu_state *rsp, struct rcu_data *rdp)
+{
+	/* Check for grace-period ends and beginnings. */
+	note_gp_changes(rsp, rdp);
+
+	/*
+	 * Does this CPU still need to do its part for current grace period?
+	 * If no, return and let the other CPUs do their part as well.
+	 */
+	if (!rdp->qs_pending)
+		return;
+
+	/*
+	 * Was there a quiescent state since the beginning of the grace
+	 * period? If no, then exit and wait for the next call.
+	 */
+	if (!rdp->passed_quiesce)
+		return;
+
+	/*
+	 * Tell RCU we are done (but rcu_report_qs_rdp() will be the
+	 * judge of that).
+	 */
+	rcu_report_qs_rdp(rdp->cpu, rsp, rdp);
+}
+
+#ifdef CONFIG_HOTPLUG_CPU
+
+/*
+ * Send the specified CPU's RCU callbacks to the orphanage.  The
+ * specified CPU must be offline, and the caller must hold the
+ * ->orphan_lock.
+ */
+static void
+rcu_send_cbs_to_orphanage(int cpu, struct rcu_state *rsp,
+			  struct rcu_node *rnp, struct rcu_data *rdp)
+{
+	/* No-CBs CPUs do not have orphanable callbacks. */
+	if (rcu_is_nocb_cpu(rdp->cpu))
+		return;
+
+	/*
+	 * Orphan the callbacks.  First adjust the counts.  This is safe
+	 * because _rcu_barrier() excludes CPU-hotplug operations, so it
+	 * cannot be running now.  Thus no memory barrier is required.
+	 */
+	if (rdp->nxtlist != NULL) {
+		rsp->qlen_lazy += rdp->qlen_lazy;
+		rsp->qlen += rdp->qlen;
+		rdp->n_cbs_orphaned += rdp->qlen;
+		rdp->qlen_lazy = 0;
+		ACCESS_ONCE(rdp->qlen) = 0;
+	}
+
+	/*
+	 * Next, move those callbacks still needing a grace period to
+	 * the orphanage, where some other CPU will pick them up.
+	 * Some of the callbacks might have gone partway through a grace
+	 * period, but that is too bad.  They get to start over because we
+	 * cannot assume that grace periods are synchronized across CPUs.
+	 * We don't bother updating the ->nxttail[] array yet, instead
+	 * we just reset the whole thing later on.
+	 */
+	if (*rdp->nxttail[RCU_DONE_TAIL] != NULL) {
+		*rsp->orphan_nxttail = *rdp->nxttail[RCU_DONE_TAIL];
+		rsp->orphan_nxttail = rdp->nxttail[RCU_NEXT_TAIL];
+		*rdp->nxttail[RCU_DONE_TAIL] = NULL;
+	}
+
+	/*
+	 * Then move the ready-to-invoke callbacks to the orphanage,
+	 * where some other CPU will pick them up.  These will not be
+	 * required to pass though another grace period: They are done.
+	 */
+	if (rdp->nxtlist != NULL) {
+		*rsp->orphan_donetail = rdp->nxtlist;
+		rsp->orphan_donetail = rdp->nxttail[RCU_DONE_TAIL];
+	}
+
+	/* Finally, initialize the rcu_data structure's list to empty.  */
+	init_callback_list(rdp);
+}
+
+/*
+ * Adopt the RCU callbacks from the specified rcu_state structure's
+ * orphanage.  The caller must hold the ->orphan_lock.
+ */
+static void rcu_adopt_orphan_cbs(struct rcu_state *rsp)
+{
+	int i;
+	struct rcu_data *rdp = __this_cpu_ptr(rsp->rda);
+
+	/* No-CBs CPUs are handled specially. */
+	if (rcu_nocb_adopt_orphan_cbs(rsp, rdp))
+		return;
+
+	/* Do the accounting first. */
+	rdp->qlen_lazy += rsp->qlen_lazy;
+	rdp->qlen += rsp->qlen;
+	rdp->n_cbs_adopted += rsp->qlen;
+	if (rsp->qlen_lazy != rsp->qlen)
+		rcu_idle_count_callbacks_posted();
+	rsp->qlen_lazy = 0;
+	rsp->qlen = 0;
+
+	/*
+	 * We do not need a memory barrier here because the only way we
+	 * can get here if there is an rcu_barrier() in flight is if
+	 * we are the task doing the rcu_barrier().
+	 */
+
+	/* First adopt the ready-to-invoke callbacks. */
+	if (rsp->orphan_donelist != NULL) {
+		*rsp->orphan_donetail = *rdp->nxttail[RCU_DONE_TAIL];
+		*rdp->nxttail[RCU_DONE_TAIL] = rsp->orphan_donelist;
+		for (i = RCU_NEXT_SIZE - 1; i >= RCU_DONE_TAIL; i--)
+			if (rdp->nxttail[i] == rdp->nxttail[RCU_DONE_TAIL])
+				rdp->nxttail[i] = rsp->orphan_donetail;
+		rsp->orphan_donelist = NULL;
+		rsp->orphan_donetail = &rsp->orphan_donelist;
+	}
+
+	/* And then adopt the callbacks that still need a grace period. */
+	if (rsp->orphan_nxtlist != NULL) {
+		*rdp->nxttail[RCU_NEXT_TAIL] = rsp->orphan_nxtlist;
+		rdp->nxttail[RCU_NEXT_TAIL] = rsp->orphan_nxttail;
+		rsp->orphan_nxtlist = NULL;
+		rsp->orphan_nxttail = &rsp->orphan_nxtlist;
+	}
+}
+
+/*
+ * Trace the fact that this CPU is going offline.
+ */
+static void rcu_cleanup_dying_cpu(struct rcu_state *rsp)
+{
+	RCU_TRACE(unsigned long mask);
+	RCU_TRACE(struct rcu_data *rdp = this_cpu_ptr(rsp->rda));
+	RCU_TRACE(struct rcu_node *rnp = rdp->mynode);
+
+	RCU_TRACE(mask = rdp->grpmask);
+	trace_rcu_grace_period(rsp->name,
+			       rnp->gpnum + 1 - !!(rnp->qsmask & mask),
+			       TPS("cpuofl"));
+}
+
+/*
+ * The CPU has been completely removed, and some other CPU is reporting
+ * this fact from process context.  Do the remainder of the cleanup,
+ * including orphaning the outgoing CPU's RCU callbacks, and also
+ * adopting them.  There can only be one CPU hotplug operation at a time,
+ * so no other CPU can be attempting to update rcu_cpu_kthread_task.
+ */
+static void rcu_cleanup_dead_cpu(int cpu, struct rcu_state *rsp)
+{
+	unsigned long flags;
+	unsigned long mask;
+	int need_report = 0;
+	struct rcu_data *rdp = per_cpu_ptr(rsp->rda, cpu);
+	struct rcu_node *rnp = rdp->mynode;  /* Outgoing CPU's rdp & rnp. */
+
+	/* Adjust any no-longer-needed kthreads. */
+	rcu_boost_kthread_setaffinity(rnp, -1);
+
+	/* Remove the dead CPU from the bitmasks in the rcu_node hierarchy. */
+
+	/* Exclude any attempts to start a new grace period. */
+	mutex_lock(&rsp->onoff_mutex);
+	raw_spin_lock_irqsave(&rsp->orphan_lock, flags);
+
+	/* Orphan the dead CPU's callbacks, and adopt them if appropriate. */
+	rcu_send_cbs_to_orphanage(cpu, rsp, rnp, rdp);
+	rcu_adopt_orphan_cbs(rsp);
+
+	/* Remove the outgoing CPU from the masks in the rcu_node hierarchy. */
+	mask = rdp->grpmask;	/* rnp->grplo is constant. */
+	do {
+		raw_spin_lock(&rnp->lock);	/* irqs already disabled. */
+		rnp->qsmaskinit &= ~mask;
+		if (rnp->qsmaskinit != 0) {
+			if (rnp != rdp->mynode)
+				raw_spin_unlock(&rnp->lock); /* irqs remain disabled. */
+			break;
+		}
+		if (rnp == rdp->mynode)
+			need_report = rcu_preempt_offline_tasks(rsp, rnp, rdp);
+		else
+			raw_spin_unlock(&rnp->lock); /* irqs remain disabled. */
+		mask = rnp->grpmask;
+		rnp = rnp->parent;
+	} while (rnp != NULL);
+
+	/*
+	 * We still hold the leaf rcu_node structure lock here, and
+	 * irqs are still disabled.  The reason for this subterfuge is
+	 * because invoking rcu_report_unblock_qs_rnp() with ->orphan_lock
+	 * held leads to deadlock.
+	 */
+	raw_spin_unlock(&rsp->orphan_lock); /* irqs remain disabled. */
+	rnp = rdp->mynode;
+	if (need_report & RCU_OFL_TASKS_NORM_GP)
+		rcu_report_unblock_qs_rnp(rnp, flags);
+	else
+		raw_spin_unlock_irqrestore(&rnp->lock, flags);
+	if (need_report & RCU_OFL_TASKS_EXP_GP)
+		rcu_report_exp_rnp(rsp, rnp, true);
+	WARN_ONCE(rdp->qlen != 0 || rdp->nxtlist != NULL,
+		  "rcu_cleanup_dead_cpu: Callbacks on offline CPU %d: qlen=%lu, nxtlist=%p\n",
+		  cpu, rdp->qlen, rdp->nxtlist);
+	init_callback_list(rdp);
+	/* Disallow further callbacks on this CPU. */
+	rdp->nxttail[RCU_NEXT_TAIL] = NULL;
+	mutex_unlock(&rsp->onoff_mutex);
+}
+
+#else /* #ifdef CONFIG_HOTPLUG_CPU */
+
+static void rcu_cleanup_dying_cpu(struct rcu_state *rsp)
+{
+}
+
+static void rcu_cleanup_dead_cpu(int cpu, struct rcu_state *rsp)
+{
+}
+
+#endif /* #else #ifdef CONFIG_HOTPLUG_CPU */
+
+/*
+ * Invoke any RCU callbacks that have made it to the end of their grace
+ * period.  Thottle as specified by rdp->blimit.
+ */
+static void rcu_do_batch(struct rcu_state *rsp, struct rcu_data *rdp)
+{
+	unsigned long flags;
+	struct rcu_head *next, *list, **tail;
+	long bl, count, count_lazy;
+	int i;
+
+	/* If no callbacks are ready, just return. */
+	if (!cpu_has_callbacks_ready_to_invoke(rdp)) {
+		trace_rcu_batch_start(rsp->name, rdp->qlen_lazy, rdp->qlen, 0);
+		trace_rcu_batch_end(rsp->name, 0, !!ACCESS_ONCE(rdp->nxtlist),
+				    need_resched(), is_idle_task(current),
+				    rcu_is_callbacks_kthread());
+		return;
+	}
+
+	/*
+	 * Extract the list of ready callbacks, disabling to prevent
+	 * races with call_rcu() from interrupt handlers.
+	 */
+	local_irq_save(flags);
+	WARN_ON_ONCE(cpu_is_offline(smp_processor_id()));
+	bl = rdp->blimit;
+	trace_rcu_batch_start(rsp->name, rdp->qlen_lazy, rdp->qlen, bl);
+	list = rdp->nxtlist;
+	rdp->nxtlist = *rdp->nxttail[RCU_DONE_TAIL];
+	*rdp->nxttail[RCU_DONE_TAIL] = NULL;
+	tail = rdp->nxttail[RCU_DONE_TAIL];
+	for (i = RCU_NEXT_SIZE - 1; i >= 0; i--)
+		if (rdp->nxttail[i] == rdp->nxttail[RCU_DONE_TAIL])
+			rdp->nxttail[i] = &rdp->nxtlist;
+	local_irq_restore(flags);
+
+	/* Invoke callbacks. */
+	count = count_lazy = 0;
+	while (list) {
+		next = list->next;
+		prefetch(next);
+		debug_rcu_head_unqueue(list);
+		if (__rcu_reclaim(rsp->name, list))
+			count_lazy++;
+		list = next;
+		/* Stop only if limit reached and CPU has something to do. */
+		if (++count >= bl &&
+		    (need_resched() ||
+		     (!is_idle_task(current) && !rcu_is_callbacks_kthread())))
+			break;
+	}
+
+	local_irq_save(flags);
+	trace_rcu_batch_end(rsp->name, count, !!list, need_resched(),
+			    is_idle_task(current),
+			    rcu_is_callbacks_kthread());
+
+	/* Update count, and requeue any remaining callbacks. */
+	if (list != NULL) {
+		*tail = rdp->nxtlist;
+		rdp->nxtlist = list;
+		for (i = 0; i < RCU_NEXT_SIZE; i++)
+			if (&rdp->nxtlist == rdp->nxttail[i])
+				rdp->nxttail[i] = tail;
+			else
+				break;
+	}
+	smp_mb(); /* List handling before counting for rcu_barrier(). */
+	rdp->qlen_lazy -= count_lazy;
+	ACCESS_ONCE(rdp->qlen) -= count;
+	rdp->n_cbs_invoked += count;
+
+	/* Reinstate batch limit if we have worked down the excess. */
+	if (rdp->blimit == LONG_MAX && rdp->qlen <= qlowmark)
+		rdp->blimit = blimit;
+
+	/* Reset ->qlen_last_fqs_check trigger if enough CBs have drained. */
+	if (rdp->qlen == 0 && rdp->qlen_last_fqs_check != 0) {
+		rdp->qlen_last_fqs_check = 0;
+		rdp->n_force_qs_snap = rsp->n_force_qs;
+	} else if (rdp->qlen < rdp->qlen_last_fqs_check - qhimark)
+		rdp->qlen_last_fqs_check = rdp->qlen;
+	WARN_ON_ONCE((rdp->nxtlist == NULL) != (rdp->qlen == 0));
+
+	local_irq_restore(flags);
+
+	/* Re-invoke RCU core processing if there are callbacks remaining. */
+	if (cpu_has_callbacks_ready_to_invoke(rdp))
+		invoke_rcu_core();
+}
+
+/*
+ * Check to see if this CPU is in a non-context-switch quiescent state
+ * (user mode or idle loop for rcu, non-softirq execution for rcu_bh).
+ * Also schedule RCU core processing.
+ *
+ * This function must be called from hardirq context.  It is normally
+ * invoked from the scheduling-clock interrupt.  If rcu_pending returns
+ * false, there is no point in invoking rcu_check_callbacks().
+ */
+void rcu_check_callbacks(int cpu, int user)
+{
+	trace_rcu_utilization(TPS("Start scheduler-tick"));
+	increment_cpu_stall_ticks();
+	if (user || rcu_is_cpu_rrupt_from_idle()) {
+
+		/*
+		 * Get here if this CPU took its interrupt from user
+		 * mode or from the idle loop, and if this is not a
+		 * nested interrupt.  In this case, the CPU is in
+		 * a quiescent state, so note it.
+		 *
+		 * No memory barrier is required here because both
+		 * rcu_sched_qs() and rcu_bh_qs() reference only CPU-local
+		 * variables that other CPUs neither access nor modify,
+		 * at least not while the corresponding CPU is online.
+		 */
+
+		rcu_sched_qs(cpu);
+		rcu_bh_qs(cpu);
+
+	} else if (!in_softirq()) {
+
+		/*
+		 * Get here if this CPU did not take its interrupt from
+		 * softirq, in other words, if it is not interrupting
+		 * a rcu_bh read-side critical section.  This is an _bh
+		 * critical section, so note it.
+		 */
+
+		rcu_bh_qs(cpu);
+	}
+	rcu_preempt_check_callbacks(cpu);
+	if (rcu_pending(cpu))
+		invoke_rcu_core();
+	trace_rcu_utilization(TPS("End scheduler-tick"));
+}
+
+/*
+ * Scan the leaf rcu_node structures, processing dyntick state for any that
+ * have not yet encountered a quiescent state, using the function specified.
+ * Also initiate boosting for any threads blocked on the root rcu_node.
+ *
+ * The caller must have suppressed start of new grace periods.
+ */
+static void force_qs_rnp(struct rcu_state *rsp,
+			 int (*f)(struct rcu_data *rsp, bool *isidle,
+				  unsigned long *maxj),
+			 bool *isidle, unsigned long *maxj)
+{
+	unsigned long bit;
+	int cpu;
+	unsigned long flags;
+	unsigned long mask;
+	struct rcu_node *rnp;
+
+	rcu_for_each_leaf_node(rsp, rnp) {
+		cond_resched();
+		mask = 0;
+		raw_spin_lock_irqsave(&rnp->lock, flags);
+		if (!rcu_gp_in_progress(rsp)) {
+			raw_spin_unlock_irqrestore(&rnp->lock, flags);
+			return;
+		}
+		if (rnp->qsmask == 0) {
+			rcu_initiate_boost(rnp, flags); /* releases rnp->lock */
+			continue;
+		}
+		cpu = rnp->grplo;
+		bit = 1;
+		for (; cpu <= rnp->grphi; cpu++, bit <<= 1) {
+			if ((rnp->qsmask & bit) != 0) {
+				if ((rnp->qsmaskinit & bit) != 0)
+					*isidle = 0;
+				if (f(per_cpu_ptr(rsp->rda, cpu), isidle, maxj))
+					mask |= bit;
+			}
+		}
+		if (mask != 0) {
+
+			/* rcu_report_qs_rnp() releases rnp->lock. */
+			rcu_report_qs_rnp(mask, rsp, rnp, flags);
+			continue;
+		}
+		raw_spin_unlock_irqrestore(&rnp->lock, flags);
+	}
+	rnp = rcu_get_root(rsp);
+	if (rnp->qsmask == 0) {
+		raw_spin_lock_irqsave(&rnp->lock, flags);
+		rcu_initiate_boost(rnp, flags); /* releases rnp->lock. */
+	}
+}
+
+/*
+ * Force quiescent states on reluctant CPUs, and also detect which
+ * CPUs are in dyntick-idle mode.
+ */
+static void force_quiescent_state(struct rcu_state *rsp)
+{
+	unsigned long flags;
+	bool ret;
+	struct rcu_node *rnp;
+	struct rcu_node *rnp_old = NULL;
+
+	/* Funnel through hierarchy to reduce memory contention. */
+	rnp = per_cpu_ptr(rsp->rda, raw_smp_processor_id())->mynode;
+	for (; rnp != NULL; rnp = rnp->parent) {
+		ret = (ACCESS_ONCE(rsp->gp_flags) & RCU_GP_FLAG_FQS) ||
+		      !raw_spin_trylock(&rnp->fqslock);
+		if (rnp_old != NULL)
+			raw_spin_unlock(&rnp_old->fqslock);
+		if (ret) {
+			rsp->n_force_qs_lh++;
+			return;
+		}
+		rnp_old = rnp;
+	}
+	/* rnp_old == rcu_get_root(rsp), rnp == NULL. */
+
+	/* Reached the root of the rcu_node tree, acquire lock. */
+	raw_spin_lock_irqsave(&rnp_old->lock, flags);
+	raw_spin_unlock(&rnp_old->fqslock);
+	if (ACCESS_ONCE(rsp->gp_flags) & RCU_GP_FLAG_FQS) {
+		rsp->n_force_qs_lh++;
+		raw_spin_unlock_irqrestore(&rnp_old->lock, flags);
+		return;  /* Someone beat us to it. */
+	}
+	rsp->gp_flags |= RCU_GP_FLAG_FQS;
+	raw_spin_unlock_irqrestore(&rnp_old->lock, flags);
+	wake_up(&rsp->gp_wq);  /* Memory barrier implied by wake_up() path. */
+}
+
+/*
+ * This does the RCU core processing work for the specified rcu_state
+ * and rcu_data structures.  This may be called only from the CPU to
+ * whom the rdp belongs.
+ */
+static void
+__rcu_process_callbacks(struct rcu_state *rsp)
+{
+	unsigned long flags;
+	struct rcu_data *rdp = __this_cpu_ptr(rsp->rda);
+
+	WARN_ON_ONCE(rdp->beenonline == 0);
+
+	/* Update RCU state based on any recent quiescent states. */
+	rcu_check_quiescent_state(rsp, rdp);
+
+	/* Does this CPU require a not-yet-started grace period? */
+	local_irq_save(flags);
+	if (cpu_needs_another_gp(rsp, rdp)) {
+		raw_spin_lock(&rcu_get_root(rsp)->lock); /* irqs disabled. */
+		rcu_start_gp(rsp);
+		raw_spin_unlock_irqrestore(&rcu_get_root(rsp)->lock, flags);
+	} else {
+		local_irq_restore(flags);
+	}
+
+	/* If there are callbacks ready, invoke them. */
+	if (cpu_has_callbacks_ready_to_invoke(rdp))
+		invoke_rcu_callbacks(rsp, rdp);
+}
+
+/*
+ * Do RCU core processing for the current CPU.
+ */
+static void rcu_process_callbacks(struct softirq_action *unused)
+{
+	struct rcu_state *rsp;
+
+	if (cpu_is_offline(smp_processor_id()))
+		return;
+	trace_rcu_utilization(TPS("Start RCU core"));
+	for_each_rcu_flavor(rsp)
+		__rcu_process_callbacks(rsp);
+	trace_rcu_utilization(TPS("End RCU core"));
+}
+
+/*
+ * Schedule RCU callback invocation.  If the specified type of RCU
+ * does not support RCU priority boosting, just do a direct call,
+ * otherwise wake up the per-CPU kernel kthread.  Note that because we
+ * are running on the current CPU with interrupts disabled, the
+ * rcu_cpu_kthread_task cannot disappear out from under us.
+ */
+static void invoke_rcu_callbacks(struct rcu_state *rsp, struct rcu_data *rdp)
+{
+	if (unlikely(!ACCESS_ONCE(rcu_scheduler_fully_active)))
+		return;
+	if (likely(!rsp->boost)) {
+		rcu_do_batch(rsp, rdp);
+		return;
+	}
+	invoke_rcu_callbacks_kthread();
+}
+
+static void invoke_rcu_core(void)
+{
+	if (cpu_online(smp_processor_id()))
+		raise_softirq(RCU_SOFTIRQ);
+}
+
+/*
+ * Handle any core-RCU processing required by a call_rcu() invocation.
+ */
+static void __call_rcu_core(struct rcu_state *rsp, struct rcu_data *rdp,
+			    struct rcu_head *head, unsigned long flags)
+{
+	/*
+	 * If called from an extended quiescent state, invoke the RCU
+	 * core in order to force a re-evaluation of RCU's idleness.
+	 */
+	if (!rcu_is_watching() && cpu_online(smp_processor_id()))
+		invoke_rcu_core();
+
+	/* If interrupts were disabled or CPU offline, don't invoke RCU core. */
+	if (irqs_disabled_flags(flags) || cpu_is_offline(smp_processor_id()))
+		return;
+
+	/*
+	 * Force the grace period if too many callbacks or too long waiting.
+	 * Enforce hysteresis, and don't invoke force_quiescent_state()
+	 * if some other CPU has recently done so.  Also, don't bother
+	 * invoking force_quiescent_state() if the newly enqueued callback
+	 * is the only one waiting for a grace period to complete.
+	 */
+	if (unlikely(rdp->qlen > rdp->qlen_last_fqs_check + qhimark)) {
+
+		/* Are we ignoring a completed grace period? */
+		note_gp_changes(rsp, rdp);
+
+		/* Start a new grace period if one not already started. */
+		if (!rcu_gp_in_progress(rsp)) {
+			struct rcu_node *rnp_root = rcu_get_root(rsp);
+
+			raw_spin_lock(&rnp_root->lock);
+			rcu_start_gp(rsp);
+			raw_spin_unlock(&rnp_root->lock);
+		} else {
+			/* Give the grace period a kick. */
+			rdp->blimit = LONG_MAX;
+			if (rsp->n_force_qs == rdp->n_force_qs_snap &&
+			    *rdp->nxttail[RCU_DONE_TAIL] != head)
+				force_quiescent_state(rsp);
+			rdp->n_force_qs_snap = rsp->n_force_qs;
+			rdp->qlen_last_fqs_check = rdp->qlen;
+		}
+	}
+}
+
+/*
+ * RCU callback function to leak a callback.
+ */
+static void rcu_leak_callback(struct rcu_head *rhp)
+{
+}
+
+/*
+ * Helper function for call_rcu() and friends.  The cpu argument will
+ * normally be -1, indicating "currently running CPU".  It may specify
+ * a CPU only if that CPU is a no-CBs CPU.  Currently, only _rcu_barrier()
+ * is expected to specify a CPU.
+ */
+static void
+__call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu),
+	   struct rcu_state *rsp, int cpu, bool lazy)
+{
+	unsigned long flags;
+	struct rcu_data *rdp;
+
+	WARN_ON_ONCE((unsigned long)head & 0x3); /* Misaligned rcu_head! */
+	if (debug_rcu_head_queue(head)) {
+		/* Probable double call_rcu(), so leak the callback. */
+		ACCESS_ONCE(head->func) = rcu_leak_callback;
+		WARN_ONCE(1, "__call_rcu(): Leaked duplicate callback\n");
+		return;
+	}
+	head->func = func;
+	head->next = NULL;
+
+	/*
+	 * Opportunistically note grace-period endings and beginnings.
+	 * Note that we might see a beginning right after we see an
+	 * end, but never vice versa, since this CPU has to pass through
+	 * a quiescent state betweentimes.
+	 */
+	local_irq_save(flags);
+	rdp = this_cpu_ptr(rsp->rda);
+
+	/* Add the callback to our list. */
+	if (unlikely(rdp->nxttail[RCU_NEXT_TAIL] == NULL) || cpu != -1) {
+		int offline;
+
+		if (cpu != -1)
+			rdp = per_cpu_ptr(rsp->rda, cpu);
+		offline = !__call_rcu_nocb(rdp, head, lazy);
+		WARN_ON_ONCE(offline);
+		/* _call_rcu() is illegal on offline CPU; leak the callback. */
+		local_irq_restore(flags);
+		return;
+	}
+	ACCESS_ONCE(rdp->qlen)++;
+	if (lazy)
+		rdp->qlen_lazy++;
+	else
+		rcu_idle_count_callbacks_posted();
+	smp_mb();  /* Count before adding callback for rcu_barrier(). */
+	*rdp->nxttail[RCU_NEXT_TAIL] = head;
+	rdp->nxttail[RCU_NEXT_TAIL] = &head->next;
+
+	if (__is_kfree_rcu_offset((unsigned long)func))
+		trace_rcu_kfree_callback(rsp->name, head, (unsigned long)func,
+					 rdp->qlen_lazy, rdp->qlen);
+	else
+		trace_rcu_callback(rsp->name, head, rdp->qlen_lazy, rdp->qlen);
+
+	/* Go handle any RCU core processing required. */
+	__call_rcu_core(rsp, rdp, head, flags);
+	local_irq_restore(flags);
+}
+
+/*
+ * Queue an RCU-sched callback for invocation after a grace period.
+ */
+void call_rcu_sched(struct rcu_head *head, void (*func)(struct rcu_head *rcu))
+{
+	__call_rcu(head, func, &rcu_sched_state, -1, 0);
+}
+EXPORT_SYMBOL_GPL(call_rcu_sched);
+
+/*
+ * Queue an RCU callback for invocation after a quicker grace period.
+ */
+void call_rcu_bh(struct rcu_head *head, void (*func)(struct rcu_head *rcu))
+{
+	__call_rcu(head, func, &rcu_bh_state, -1, 0);
+}
+EXPORT_SYMBOL_GPL(call_rcu_bh);
+
+/*
+ * Because a context switch is a grace period for RCU-sched and RCU-bh,
+ * any blocking grace-period wait automatically implies a grace period
+ * if there is only one CPU online at any point time during execution
+ * of either synchronize_sched() or synchronize_rcu_bh().  It is OK to
+ * occasionally incorrectly indicate that there are multiple CPUs online
+ * when there was in fact only one the whole time, as this just adds
+ * some overhead: RCU still operates correctly.
+ */
+static inline int rcu_blocking_is_gp(void)
+{
+	int ret;
+
+	might_sleep();  /* Check for RCU read-side critical section. */
+	preempt_disable();
+	ret = num_online_cpus() <= 1;
+	preempt_enable();
+	return ret;
+}
+
+/**
+ * synchronize_sched - wait until an rcu-sched grace period has elapsed.
+ *
+ * Control will return to the caller some time after a full rcu-sched
+ * grace period has elapsed, in other words after all currently executing
+ * rcu-sched read-side critical sections have completed.   These read-side
+ * critical sections are delimited by rcu_read_lock_sched() and
+ * rcu_read_unlock_sched(), and may be nested.  Note that preempt_disable(),
+ * local_irq_disable(), and so on may be used in place of
+ * rcu_read_lock_sched().
+ *
+ * This means that all preempt_disable code sequences, including NMI and
+ * non-threaded hardware-interrupt handlers, in progress on entry will
+ * have completed before this primitive returns.  However, this does not
+ * guarantee that softirq handlers will have completed, since in some
+ * kernels, these handlers can run in process context, and can block.
+ *
+ * Note that this guarantee implies further memory-ordering guarantees.
+ * On systems with more than one CPU, when synchronize_sched() returns,
+ * each CPU is guaranteed to have executed a full memory barrier since the
+ * end of its last RCU-sched read-side critical section whose beginning
+ * preceded the call to synchronize_sched().  In addition, each CPU having
+ * an RCU read-side critical section that extends beyond the return from
+ * synchronize_sched() is guaranteed to have executed a full memory barrier
+ * after the beginning of synchronize_sched() and before the beginning of
+ * that RCU read-side critical section.  Note that these guarantees include
+ * CPUs that are offline, idle, or executing in user mode, as well as CPUs
+ * that are executing in the kernel.
+ *
+ * Furthermore, if CPU A invoked synchronize_sched(), which returned
+ * to its caller on CPU B, then both CPU A and CPU B are guaranteed
+ * to have executed a full memory barrier during the execution of
+ * synchronize_sched() -- even if CPU A and CPU B are the same CPU (but
+ * again only if the system has more than one CPU).
+ *
+ * This primitive provides the guarantees made by the (now removed)
+ * synchronize_kernel() API.  In contrast, synchronize_rcu() only
+ * guarantees that rcu_read_lock() sections will have completed.
+ * In "classic RCU", these two guarantees happen to be one and
+ * the same, but can differ in realtime RCU implementations.
+ */
+void synchronize_sched(void)
+{
+	rcu_lockdep_assert(!lock_is_held(&rcu_bh_lock_map) &&
+			   !lock_is_held(&rcu_lock_map) &&
+			   !lock_is_held(&rcu_sched_lock_map),
+			   "Illegal synchronize_sched() in RCU-sched read-side critical section");
+	if (rcu_blocking_is_gp())
+		return;
+	if (rcu_expedited)
+		synchronize_sched_expedited();
+	else
+		wait_rcu_gp(call_rcu_sched);
+}
+EXPORT_SYMBOL_GPL(synchronize_sched);
+
+/**
+ * synchronize_rcu_bh - wait until an rcu_bh grace period has elapsed.
+ *
+ * Control will return to the caller some time after a full rcu_bh grace
+ * period has elapsed, in other words after all currently executing rcu_bh
+ * read-side critical sections have completed.  RCU read-side critical
+ * sections are delimited by rcu_read_lock_bh() and rcu_read_unlock_bh(),
+ * and may be nested.
+ *
+ * See the description of synchronize_sched() for more detailed information
+ * on memory ordering guarantees.
+ */
+void synchronize_rcu_bh(void)
+{
+	rcu_lockdep_assert(!lock_is_held(&rcu_bh_lock_map) &&
+			   !lock_is_held(&rcu_lock_map) &&
+			   !lock_is_held(&rcu_sched_lock_map),
+			   "Illegal synchronize_rcu_bh() in RCU-bh read-side critical section");
+	if (rcu_blocking_is_gp())
+		return;
+	if (rcu_expedited)
+		synchronize_rcu_bh_expedited();
+	else
+		wait_rcu_gp(call_rcu_bh);
+}
+EXPORT_SYMBOL_GPL(synchronize_rcu_bh);
+
+static int synchronize_sched_expedited_cpu_stop(void *data)
+{
+	/*
+	 * There must be a full memory barrier on each affected CPU
+	 * between the time that try_stop_cpus() is called and the
+	 * time that it returns.
+	 *
+	 * In the current initial implementation of cpu_stop, the
+	 * above condition is already met when the control reaches
+	 * this point and the following smp_mb() is not strictly
+	 * necessary.  Do smp_mb() anyway for documentation and
+	 * robustness against future implementation changes.
+	 */
+	smp_mb(); /* See above comment block. */
+	return 0;
+}
+
+/**
+ * synchronize_sched_expedited - Brute-force RCU-sched grace period
+ *
+ * Wait for an RCU-sched grace period to elapse, but use a "big hammer"
+ * approach to force the grace period to end quickly.  This consumes
+ * significant time on all CPUs and is unfriendly to real-time workloads,
+ * so is thus not recommended for any sort of common-case code.  In fact,
+ * if you are using synchronize_sched_expedited() in a loop, please
+ * restructure your code to batch your updates, and then use a single
+ * synchronize_sched() instead.
+ *
+ * Note that it is illegal to call this function while holding any lock
+ * that is acquired by a CPU-hotplug notifier.  And yes, it is also illegal
+ * to call this function from a CPU-hotplug notifier.  Failing to observe
+ * these restriction will result in deadlock.
+ *
+ * This implementation can be thought of as an application of ticket
+ * locking to RCU, with sync_sched_expedited_started and
+ * sync_sched_expedited_done taking on the roles of the halves
+ * of the ticket-lock word.  Each task atomically increments
+ * sync_sched_expedited_started upon entry, snapshotting the old value,
+ * then attempts to stop all the CPUs.  If this succeeds, then each
+ * CPU will have executed a context switch, resulting in an RCU-sched
+ * grace period.  We are then done, so we use atomic_cmpxchg() to
+ * update sync_sched_expedited_done to match our snapshot -- but
+ * only if someone else has not already advanced past our snapshot.
+ *
+ * On the other hand, if try_stop_cpus() fails, we check the value
+ * of sync_sched_expedited_done.  If it has advanced past our
+ * initial snapshot, then someone else must have forced a grace period
+ * some time after we took our snapshot.  In this case, our work is
+ * done for us, and we can simply return.  Otherwise, we try again,
+ * but keep our initial snapshot for purposes of checking for someone
+ * doing our work for us.
+ *
+ * If we fail too many times in a row, we fall back to synchronize_sched().
+ */
+void synchronize_sched_expedited(void)
+{
+	long firstsnap, s, snap;
+	int trycount = 0;
+	struct rcu_state *rsp = &rcu_sched_state;
+
+	/*
+	 * If we are in danger of counter wrap, just do synchronize_sched().
+	 * By allowing sync_sched_expedited_started to advance no more than
+	 * ULONG_MAX/8 ahead of sync_sched_expedited_done, we are ensuring
+	 * that more than 3.5 billion CPUs would be required to force a
+	 * counter wrap on a 32-bit system.  Quite a few more CPUs would of
+	 * course be required on a 64-bit system.
+	 */
+	if (ULONG_CMP_GE((ulong)atomic_long_read(&rsp->expedited_start),
+			 (ulong)atomic_long_read(&rsp->expedited_done) +
+			 ULONG_MAX / 8)) {
+		synchronize_sched();
+		atomic_long_inc(&rsp->expedited_wrap);
+		return;
+	}
+
+	/*
+	 * Take a ticket.  Note that atomic_inc_return() implies a
+	 * full memory barrier.
+	 */
+	snap = atomic_long_inc_return(&rsp->expedited_start);
+	firstsnap = snap;
+	get_online_cpus();
+	WARN_ON_ONCE(cpu_is_offline(raw_smp_processor_id()));
+
+	/*
+	 * Each pass through the following loop attempts to force a
+	 * context switch on each CPU.
+	 */
+	while (try_stop_cpus(cpu_online_mask,
+			     synchronize_sched_expedited_cpu_stop,
+			     NULL) == -EAGAIN) {
+		put_online_cpus();
+		atomic_long_inc(&rsp->expedited_tryfail);
+
+		/* Check to see if someone else did our work for us. */
+		s = atomic_long_read(&rsp->expedited_done);
+		if (ULONG_CMP_GE((ulong)s, (ulong)firstsnap)) {
+			/* ensure test happens before caller kfree */
+			smp_mb__before_atomic_inc(); /* ^^^ */
+			atomic_long_inc(&rsp->expedited_workdone1);
+			return;
+		}
+
+		/* No joy, try again later.  Or just synchronize_sched(). */
+		if (trycount++ < 10) {
+			udelay(trycount * num_online_cpus());
+		} else {
+			wait_rcu_gp(call_rcu_sched);
+			atomic_long_inc(&rsp->expedited_normal);
+			return;
+		}
+
+		/* Recheck to see if someone else did our work for us. */
+		s = atomic_long_read(&rsp->expedited_done);
+		if (ULONG_CMP_GE((ulong)s, (ulong)firstsnap)) {
+			/* ensure test happens before caller kfree */
+			smp_mb__before_atomic_inc(); /* ^^^ */
+			atomic_long_inc(&rsp->expedited_workdone2);
+			return;
+		}
+
+		/*
+		 * Refetching sync_sched_expedited_started allows later
+		 * callers to piggyback on our grace period.  We retry
+		 * after they started, so our grace period works for them,
+		 * and they started after our first try, so their grace
+		 * period works for us.
+		 */
+		get_online_cpus();
+		snap = atomic_long_read(&rsp->expedited_start);
+		smp_mb(); /* ensure read is before try_stop_cpus(). */
+	}
+	atomic_long_inc(&rsp->expedited_stoppedcpus);
+
+	/*
+	 * Everyone up to our most recent fetch is covered by our grace
+	 * period.  Update the counter, but only if our work is still
+	 * relevant -- which it won't be if someone who started later
+	 * than we did already did their update.
+	 */
+	do {
+		atomic_long_inc(&rsp->expedited_done_tries);
+		s = atomic_long_read(&rsp->expedited_done);
+		if (ULONG_CMP_GE((ulong)s, (ulong)snap)) {
+			/* ensure test happens before caller kfree */
+			smp_mb__before_atomic_inc(); /* ^^^ */
+			atomic_long_inc(&rsp->expedited_done_lost);
+			break;
+		}
+	} while (atomic_long_cmpxchg(&rsp->expedited_done, s, snap) != s);
+	atomic_long_inc(&rsp->expedited_done_exit);
+
+	put_online_cpus();
+}
+EXPORT_SYMBOL_GPL(synchronize_sched_expedited);
+
+/*
+ * Check to see if there is any immediate RCU-related work to be done
+ * by the current CPU, for the specified type of RCU, returning 1 if so.
+ * The checks are in order of increasing expense: checks that can be
+ * carried out against CPU-local state are performed first.  However,
+ * we must check for CPU stalls first, else we might not get a chance.
+ */
+static int __rcu_pending(struct rcu_state *rsp, struct rcu_data *rdp)
+{
+	struct rcu_node *rnp = rdp->mynode;
+
+	rdp->n_rcu_pending++;
+
+	/* Check for CPU stalls, if enabled. */
+	check_cpu_stall(rsp, rdp);
+
+	/* Is the RCU core waiting for a quiescent state from this CPU? */
+	if (rcu_scheduler_fully_active &&
+	    rdp->qs_pending && !rdp->passed_quiesce) {
+		rdp->n_rp_qs_pending++;
+	} else if (rdp->qs_pending && rdp->passed_quiesce) {
+		rdp->n_rp_report_qs++;
+		return 1;
+	}
+
+	/* Does this CPU have callbacks ready to invoke? */
+	if (cpu_has_callbacks_ready_to_invoke(rdp)) {
+		rdp->n_rp_cb_ready++;
+		return 1;
+	}
+
+	/* Has RCU gone idle with this CPU needing another grace period? */
+	if (cpu_needs_another_gp(rsp, rdp)) {
+		rdp->n_rp_cpu_needs_gp++;
+		return 1;
+	}
+
+	/* Has another RCU grace period completed?  */
+	if (ACCESS_ONCE(rnp->completed) != rdp->completed) { /* outside lock */
+		rdp->n_rp_gp_completed++;
+		return 1;
+	}
+
+	/* Has a new RCU grace period started? */
+	if (ACCESS_ONCE(rnp->gpnum) != rdp->gpnum) { /* outside lock */
+		rdp->n_rp_gp_started++;
+		return 1;
+	}
+
+	/* nothing to do */
+	rdp->n_rp_need_nothing++;
+	return 0;
+}
+
+/*
+ * Check to see if there is any immediate RCU-related work to be done
+ * by the current CPU, returning 1 if so.  This function is part of the
+ * RCU implementation; it is -not- an exported member of the RCU API.
+ */
+static int rcu_pending(int cpu)
+{
+	struct rcu_state *rsp;
+
+	for_each_rcu_flavor(rsp)
+		if (__rcu_pending(rsp, per_cpu_ptr(rsp->rda, cpu)))
+			return 1;
+	return 0;
+}
+
+/*
+ * Return true if the specified CPU has any callback.  If all_lazy is
+ * non-NULL, store an indication of whether all callbacks are lazy.
+ * (If there are no callbacks, all of them are deemed to be lazy.)
+ */
+static int rcu_cpu_has_callbacks(int cpu, bool *all_lazy)
+{
+	bool al = true;
+	bool hc = false;
+	struct rcu_data *rdp;
+	struct rcu_state *rsp;
+
+	for_each_rcu_flavor(rsp) {
+		rdp = per_cpu_ptr(rsp->rda, cpu);
+		if (!rdp->nxtlist)
+			continue;
+		hc = true;
+		if (rdp->qlen != rdp->qlen_lazy || !all_lazy) {
+			al = false;
+			break;
+		}
+	}
+	if (all_lazy)
+		*all_lazy = al;
+	return hc;
+}
+
+/*
+ * Helper function for _rcu_barrier() tracing.  If tracing is disabled,
+ * the compiler is expected to optimize this away.
+ */
+static void _rcu_barrier_trace(struct rcu_state *rsp, const char *s,
+			       int cpu, unsigned long done)
+{
+	trace_rcu_barrier(rsp->name, s, cpu,
+			  atomic_read(&rsp->barrier_cpu_count), done);
+}
+
+/*
+ * RCU callback function for _rcu_barrier().  If we are last, wake
+ * up the task executing _rcu_barrier().
+ */
+static void rcu_barrier_callback(struct rcu_head *rhp)
+{
+	struct rcu_data *rdp = container_of(rhp, struct rcu_data, barrier_head);
+	struct rcu_state *rsp = rdp->rsp;
+
+	if (atomic_dec_and_test(&rsp->barrier_cpu_count)) {
+		_rcu_barrier_trace(rsp, "LastCB", -1, rsp->n_barrier_done);
+		complete(&rsp->barrier_completion);
+	} else {
+		_rcu_barrier_trace(rsp, "CB", -1, rsp->n_barrier_done);
+	}
+}
+
+/*
+ * Called with preemption disabled, and from cross-cpu IRQ context.
+ */
+static void rcu_barrier_func(void *type)
+{
+	struct rcu_state *rsp = type;
+	struct rcu_data *rdp = __this_cpu_ptr(rsp->rda);
+
+	_rcu_barrier_trace(rsp, "IRQ", -1, rsp->n_barrier_done);
+	atomic_inc(&rsp->barrier_cpu_count);
+	rsp->call(&rdp->barrier_head, rcu_barrier_callback);
+}
+
+/*
+ * Orchestrate the specified type of RCU barrier, waiting for all
+ * RCU callbacks of the specified type to complete.
+ */
+static void _rcu_barrier(struct rcu_state *rsp)
+{
+	int cpu;
+	struct rcu_data *rdp;
+	unsigned long snap = ACCESS_ONCE(rsp->n_barrier_done);
+	unsigned long snap_done;
+
+	_rcu_barrier_trace(rsp, "Begin", -1, snap);
+
+	/* Take mutex to serialize concurrent rcu_barrier() requests. */
+	mutex_lock(&rsp->barrier_mutex);
+
+	/*
+	 * Ensure that all prior references, including to ->n_barrier_done,
+	 * are ordered before the _rcu_barrier() machinery.
+	 */
+	smp_mb();  /* See above block comment. */
+
+	/*
+	 * Recheck ->n_barrier_done to see if others did our work for us.
+	 * This means checking ->n_barrier_done for an even-to-odd-to-even
+	 * transition.  The "if" expression below therefore rounds the old
+	 * value up to the next even number and adds two before comparing.
+	 */
+	snap_done = rsp->n_barrier_done;
+	_rcu_barrier_trace(rsp, "Check", -1, snap_done);
+
+	/*
+	 * If the value in snap is odd, we needed to wait for the current
+	 * rcu_barrier() to complete, then wait for the next one, in other
+	 * words, we need the value of snap_done to be three larger than
+	 * the value of snap.  On the other hand, if the value in snap is
+	 * even, we only had to wait for the next rcu_barrier() to complete,
+	 * in other words, we need the value of snap_done to be only two
+	 * greater than the value of snap.  The "(snap + 3) & ~0x1" computes
+	 * this for us (thank you, Linus!).
+	 */
+	if (ULONG_CMP_GE(snap_done, (snap + 3) & ~0x1)) {
+		_rcu_barrier_trace(rsp, "EarlyExit", -1, snap_done);
+		smp_mb(); /* caller's subsequent code after above check. */
+		mutex_unlock(&rsp->barrier_mutex);
+		return;
+	}
+
+	/*
+	 * Increment ->n_barrier_done to avoid duplicate work.  Use
+	 * ACCESS_ONCE() to prevent the compiler from speculating
+	 * the increment to precede the early-exit check.
+	 */
+	ACCESS_ONCE(rsp->n_barrier_done)++;
+	WARN_ON_ONCE((rsp->n_barrier_done & 0x1) != 1);
+	_rcu_barrier_trace(rsp, "Inc1", -1, rsp->n_barrier_done);
+	smp_mb(); /* Order ->n_barrier_done increment with below mechanism. */
+
+	/*
+	 * Initialize the count to one rather than to zero in order to
+	 * avoid a too-soon return to zero in case of a short grace period
+	 * (or preemption of this task).  Exclude CPU-hotplug operations
+	 * to ensure that no offline CPU has callbacks queued.
+	 */
+	init_completion(&rsp->barrier_completion);
+	atomic_set(&rsp->barrier_cpu_count, 1);
+	get_online_cpus();
+
+	/*
+	 * Force each CPU with callbacks to register a new callback.
+	 * When that callback is invoked, we will know that all of the
+	 * corresponding CPU's preceding callbacks have been invoked.
+	 */
+	for_each_possible_cpu(cpu) {
+		if (!cpu_online(cpu) && !rcu_is_nocb_cpu(cpu))
+			continue;
+		rdp = per_cpu_ptr(rsp->rda, cpu);
+		if (rcu_is_nocb_cpu(cpu)) {
+			_rcu_barrier_trace(rsp, "OnlineNoCB", cpu,
+					   rsp->n_barrier_done);
+			atomic_inc(&rsp->barrier_cpu_count);
+			__call_rcu(&rdp->barrier_head, rcu_barrier_callback,
+				   rsp, cpu, 0);
+		} else if (ACCESS_ONCE(rdp->qlen)) {
+			_rcu_barrier_trace(rsp, "OnlineQ", cpu,
+					   rsp->n_barrier_done);
+			smp_call_function_single(cpu, rcu_barrier_func, rsp, 1);
+		} else {
+			_rcu_barrier_trace(rsp, "OnlineNQ", cpu,
+					   rsp->n_barrier_done);
+		}
+	}
+	put_online_cpus();
+
+	/*
+	 * Now that we have an rcu_barrier_callback() callback on each
+	 * CPU, and thus each counted, remove the initial count.
+	 */
+	if (atomic_dec_and_test(&rsp->barrier_cpu_count))
+		complete(&rsp->barrier_completion);
+
+	/* Increment ->n_barrier_done to prevent duplicate work. */
+	smp_mb(); /* Keep increment after above mechanism. */
+	ACCESS_ONCE(rsp->n_barrier_done)++;
+	WARN_ON_ONCE((rsp->n_barrier_done & 0x1) != 0);
+	_rcu_barrier_trace(rsp, "Inc2", -1, rsp->n_barrier_done);
+	smp_mb(); /* Keep increment before caller's subsequent code. */
+
+	/* Wait for all rcu_barrier_callback() callbacks to be invoked. */
+	wait_for_completion(&rsp->barrier_completion);
+
+	/* Other rcu_barrier() invocations can now safely proceed. */
+	mutex_unlock(&rsp->barrier_mutex);
+}
+
+/**
+ * rcu_barrier_bh - Wait until all in-flight call_rcu_bh() callbacks complete.
+ */
+void rcu_barrier_bh(void)
+{
+	_rcu_barrier(&rcu_bh_state);
+}
+EXPORT_SYMBOL_GPL(rcu_barrier_bh);
+
+/**
+ * rcu_barrier_sched - Wait for in-flight call_rcu_sched() callbacks.
+ */
+void rcu_barrier_sched(void)
+{
+	_rcu_barrier(&rcu_sched_state);
+}
+EXPORT_SYMBOL_GPL(rcu_barrier_sched);
+
+/*
+ * Do boot-time initialization of a CPU's per-CPU RCU data.
+ */
+static void __init
+rcu_boot_init_percpu_data(int cpu, struct rcu_state *rsp)
+{
+	unsigned long flags;
+	struct rcu_data *rdp = per_cpu_ptr(rsp->rda, cpu);
+	struct rcu_node *rnp = rcu_get_root(rsp);
+
+	/* Set up local state, ensuring consistent view of global state. */
+	raw_spin_lock_irqsave(&rnp->lock, flags);
+	rdp->grpmask = 1UL << (cpu - rdp->mynode->grplo);
+	init_callback_list(rdp);
+	rdp->qlen_lazy = 0;
+	ACCESS_ONCE(rdp->qlen) = 0;
+	rdp->dynticks = &per_cpu(rcu_dynticks, cpu);
+	WARN_ON_ONCE(rdp->dynticks->dynticks_nesting != DYNTICK_TASK_EXIT_IDLE);
+	WARN_ON_ONCE(atomic_read(&rdp->dynticks->dynticks) != 1);
+	rdp->cpu = cpu;
+	rdp->rsp = rsp;
+	rcu_boot_init_nocb_percpu_data(rdp);
+	raw_spin_unlock_irqrestore(&rnp->lock, flags);
+}
+
+/*
+ * Initialize a CPU's per-CPU RCU data.  Note that only one online or
+ * offline event can be happening at a given time.  Note also that we
+ * can accept some slop in the rsp->completed access due to the fact
+ * that this CPU cannot possibly have any RCU callbacks in flight yet.
+ */
+static void
+rcu_init_percpu_data(int cpu, struct rcu_state *rsp, int preemptible)
+{
+	unsigned long flags;
+	unsigned long mask;
+	struct rcu_data *rdp = per_cpu_ptr(rsp->rda, cpu);
+	struct rcu_node *rnp = rcu_get_root(rsp);
+
+	/* Exclude new grace periods. */
+	mutex_lock(&rsp->onoff_mutex);
+
+	/* Set up local state, ensuring consistent view of global state. */
+	raw_spin_lock_irqsave(&rnp->lock, flags);
+	rdp->beenonline = 1;	 /* We have now been online. */
+	rdp->preemptible = preemptible;
+	rdp->qlen_last_fqs_check = 0;
+	rdp->n_force_qs_snap = rsp->n_force_qs;
+	rdp->blimit = blimit;
+	init_callback_list(rdp);  /* Re-enable callbacks on this CPU. */
+	rdp->dynticks->dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
+	rcu_sysidle_init_percpu_data(rdp->dynticks);
+	atomic_set(&rdp->dynticks->dynticks,
+		   (atomic_read(&rdp->dynticks->dynticks) & ~0x1) + 1);
+	raw_spin_unlock(&rnp->lock);		/* irqs remain disabled. */
+
+	/* Add CPU to rcu_node bitmasks. */
+	rnp = rdp->mynode;
+	mask = rdp->grpmask;
+	do {
+		/* Exclude any attempts to start a new GP on small systems. */
+		raw_spin_lock(&rnp->lock);	/* irqs already disabled. */
+		rnp->qsmaskinit |= mask;
+		mask = rnp->grpmask;
+		if (rnp == rdp->mynode) {
+			/*
+			 * If there is a grace period in progress, we will
+			 * set up to wait for it next time we run the
+			 * RCU core code.
+			 */
+			rdp->gpnum = rnp->completed;
+			rdp->completed = rnp->completed;
+			rdp->passed_quiesce = 0;
+			rdp->qs_pending = 0;
+			trace_rcu_grace_period(rsp->name, rdp->gpnum, TPS("cpuonl"));
+		}
+		raw_spin_unlock(&rnp->lock); /* irqs already disabled. */
+		rnp = rnp->parent;
+	} while (rnp != NULL && !(rnp->qsmaskinit & mask));
+	local_irq_restore(flags);
+
+	mutex_unlock(&rsp->onoff_mutex);
+}
+
+static void rcu_prepare_cpu(int cpu)
+{
+	struct rcu_state *rsp;
+
+	for_each_rcu_flavor(rsp)
+		rcu_init_percpu_data(cpu, rsp,
+				     strcmp(rsp->name, "rcu_preempt") == 0);
+}
+
+/*
+ * Handle CPU online/offline notification events.
+ */
+static int rcu_cpu_notify(struct notifier_block *self,
+				    unsigned long action, void *hcpu)
+{
+	long cpu = (long)hcpu;
+	struct rcu_data *rdp = per_cpu_ptr(rcu_state->rda, cpu);
+	struct rcu_node *rnp = rdp->mynode;
+	struct rcu_state *rsp;
+
+	trace_rcu_utilization(TPS("Start CPU hotplug"));
+	switch (action) {
+	case CPU_UP_PREPARE:
+	case CPU_UP_PREPARE_FROZEN:
+		rcu_prepare_cpu(cpu);
+		rcu_prepare_kthreads(cpu);
+		break;
+	case CPU_ONLINE:
+	case CPU_DOWN_FAILED:
+		rcu_boost_kthread_setaffinity(rnp, -1);
+		break;
+	case CPU_DOWN_PREPARE:
+		rcu_boost_kthread_setaffinity(rnp, cpu);
+		break;
+	case CPU_DYING:
+	case CPU_DYING_FROZEN:
+		for_each_rcu_flavor(rsp)
+			rcu_cleanup_dying_cpu(rsp);
+		break;
+	case CPU_DEAD:
+	case CPU_DEAD_FROZEN:
+	case CPU_UP_CANCELED:
+	case CPU_UP_CANCELED_FROZEN:
+		for_each_rcu_flavor(rsp)
+			rcu_cleanup_dead_cpu(cpu, rsp);
+		break;
+	default:
+		break;
+	}
+	trace_rcu_utilization(TPS("End CPU hotplug"));
+	return NOTIFY_OK;
+}
+
+static int rcu_pm_notify(struct notifier_block *self,
+			 unsigned long action, void *hcpu)
+{
+	switch (action) {
+	case PM_HIBERNATION_PREPARE:
+	case PM_SUSPEND_PREPARE:
+		if (nr_cpu_ids <= 256) /* Expediting bad for large systems. */
+			rcu_expedited = 1;
+		break;
+	case PM_POST_HIBERNATION:
+	case PM_POST_SUSPEND:
+		rcu_expedited = 0;
+		break;
+	default:
+		break;
+	}
+	return NOTIFY_OK;
+}
+
+/*
+ * Spawn the kthread that handles this RCU flavor's grace periods.
+ */
+static int __init rcu_spawn_gp_kthread(void)
+{
+	unsigned long flags;
+	struct rcu_node *rnp;
+	struct rcu_state *rsp;
+	struct task_struct *t;
+
+	for_each_rcu_flavor(rsp) {
+		t = kthread_run(rcu_gp_kthread, rsp, "%s", rsp->name);
+		BUG_ON(IS_ERR(t));
+		rnp = rcu_get_root(rsp);
+		raw_spin_lock_irqsave(&rnp->lock, flags);
+		rsp->gp_kthread = t;
+		raw_spin_unlock_irqrestore(&rnp->lock, flags);
+		rcu_spawn_nocb_kthreads(rsp);
+	}
+	return 0;
+}
+early_initcall(rcu_spawn_gp_kthread);
+
+/*
+ * This function is invoked towards the end of the scheduler's initialization
+ * process.  Before this is called, the idle task might contain
+ * RCU read-side critical sections (during which time, this idle
+ * task is booting the system).  After this function is called, the
+ * idle tasks are prohibited from containing RCU read-side critical
+ * sections.  This function also enables RCU lockdep checking.
+ */
+void rcu_scheduler_starting(void)
+{
+	WARN_ON(num_online_cpus() != 1);
+	WARN_ON(nr_context_switches() > 0);
+	rcu_scheduler_active = 1;
+}
+
+/*
+ * Compute the per-level fanout, either using the exact fanout specified
+ * or balancing the tree, depending on CONFIG_RCU_FANOUT_EXACT.
+ */
+#ifdef CONFIG_RCU_FANOUT_EXACT
+static void __init rcu_init_levelspread(struct rcu_state *rsp)
+{
+	int i;
+
+	for (i = rcu_num_lvls - 1; i > 0; i--)
+		rsp->levelspread[i] = CONFIG_RCU_FANOUT;
+	rsp->levelspread[0] = rcu_fanout_leaf;
+}
+#else /* #ifdef CONFIG_RCU_FANOUT_EXACT */
+static void __init rcu_init_levelspread(struct rcu_state *rsp)
+{
+	int ccur;
+	int cprv;
+	int i;
+
+	cprv = nr_cpu_ids;
+	for (i = rcu_num_lvls - 1; i >= 0; i--) {
+		ccur = rsp->levelcnt[i];
+		rsp->levelspread[i] = (cprv + ccur - 1) / ccur;
+		cprv = ccur;
+	}
+}
+#endif /* #else #ifdef CONFIG_RCU_FANOUT_EXACT */
+
+/*
+ * Helper function for rcu_init() that initializes one rcu_state structure.
+ */
+static void __init rcu_init_one(struct rcu_state *rsp,
+		struct rcu_data __percpu *rda)
+{
+	static char *buf[] = { "rcu_node_0",
+			       "rcu_node_1",
+			       "rcu_node_2",
+			       "rcu_node_3" };  /* Match MAX_RCU_LVLS */
+	static char *fqs[] = { "rcu_node_fqs_0",
+			       "rcu_node_fqs_1",
+			       "rcu_node_fqs_2",
+			       "rcu_node_fqs_3" };  /* Match MAX_RCU_LVLS */
+	int cpustride = 1;
+	int i;
+	int j;
+	struct rcu_node *rnp;
+
+	BUILD_BUG_ON(MAX_RCU_LVLS > ARRAY_SIZE(buf));  /* Fix buf[] init! */
+
+	/* Silence gcc 4.8 warning about array index out of range. */
+	if (rcu_num_lvls > RCU_NUM_LVLS)
+		panic("rcu_init_one: rcu_num_lvls overflow");
+
+	/* Initialize the level-tracking arrays. */
+
+	for (i = 0; i < rcu_num_lvls; i++)
+		rsp->levelcnt[i] = num_rcu_lvl[i];
+	for (i = 1; i < rcu_num_lvls; i++)
+		rsp->level[i] = rsp->level[i - 1] + rsp->levelcnt[i - 1];
+	rcu_init_levelspread(rsp);
+
+	/* Initialize the elements themselves, starting from the leaves. */
+
+	for (i = rcu_num_lvls - 1; i >= 0; i--) {
+		cpustride *= rsp->levelspread[i];
+		rnp = rsp->level[i];
+		for (j = 0; j < rsp->levelcnt[i]; j++, rnp++) {
+			raw_spin_lock_init(&rnp->lock);
+			lockdep_set_class_and_name(&rnp->lock,
+						   &rcu_node_class[i], buf[i]);
+			raw_spin_lock_init(&rnp->fqslock);
+			lockdep_set_class_and_name(&rnp->fqslock,
+						   &rcu_fqs_class[i], fqs[i]);
+			rnp->gpnum = rsp->gpnum;
+			rnp->completed = rsp->completed;
+			rnp->qsmask = 0;
+			rnp->qsmaskinit = 0;
+			rnp->grplo = j * cpustride;
+			rnp->grphi = (j + 1) * cpustride - 1;
+			if (rnp->grphi >= NR_CPUS)
+				rnp->grphi = NR_CPUS - 1;
+			if (i == 0) {
+				rnp->grpnum = 0;
+				rnp->grpmask = 0;
+				rnp->parent = NULL;
+			} else {
+				rnp->grpnum = j % rsp->levelspread[i - 1];
+				rnp->grpmask = 1UL << rnp->grpnum;
+				rnp->parent = rsp->level[i - 1] +
+					      j / rsp->levelspread[i - 1];
+			}
+			rnp->level = i;
+			INIT_LIST_HEAD(&rnp->blkd_tasks);
+			rcu_init_one_nocb(rnp);
+		}
+	}
+
+	rsp->rda = rda;
+	init_waitqueue_head(&rsp->gp_wq);
+	init_irq_work(&rsp->wakeup_work, rsp_wakeup);
+	rnp = rsp->level[rcu_num_lvls - 1];
+	for_each_possible_cpu(i) {
+		while (i > rnp->grphi)
+			rnp++;
+		per_cpu_ptr(rsp->rda, i)->mynode = rnp;
+		rcu_boot_init_percpu_data(i, rsp);
+	}
+	list_add(&rsp->flavors, &rcu_struct_flavors);
+}
+
+/*
+ * Compute the rcu_node tree geometry from kernel parameters.  This cannot
+ * replace the definitions in tree.h because those are needed to size
+ * the ->node array in the rcu_state structure.
+ */
+static void __init rcu_init_geometry(void)
+{
+	ulong d;
+	int i;
+	int j;
+	int n = nr_cpu_ids;
+	int rcu_capacity[MAX_RCU_LVLS + 1];
+
+	/*
+	 * Initialize any unspecified boot parameters.
+	 * The default values of jiffies_till_first_fqs and
+	 * jiffies_till_next_fqs are set to the RCU_JIFFIES_TILL_FORCE_QS
+	 * value, which is a function of HZ, then adding one for each
+	 * RCU_JIFFIES_FQS_DIV CPUs that might be on the system.
+	 */
+	d = RCU_JIFFIES_TILL_FORCE_QS + nr_cpu_ids / RCU_JIFFIES_FQS_DIV;
+	if (jiffies_till_first_fqs == ULONG_MAX)
+		jiffies_till_first_fqs = d;
+	if (jiffies_till_next_fqs == ULONG_MAX)
+		jiffies_till_next_fqs = d;
+
+	/* If the compile-time values are accurate, just leave. */
+	if (rcu_fanout_leaf == CONFIG_RCU_FANOUT_LEAF &&
+	    nr_cpu_ids == NR_CPUS)
+		return;
+
+	/*
+	 * Compute number of nodes that can be handled an rcu_node tree
+	 * with the given number of levels.  Setting rcu_capacity[0] makes
+	 * some of the arithmetic easier.
+	 */
+	rcu_capacity[0] = 1;
+	rcu_capacity[1] = rcu_fanout_leaf;
+	for (i = 2; i <= MAX_RCU_LVLS; i++)
+		rcu_capacity[i] = rcu_capacity[i - 1] * CONFIG_RCU_FANOUT;
+
+	/*
+	 * The boot-time rcu_fanout_leaf parameter is only permitted
+	 * to increase the leaf-level fanout, not decrease it.  Of course,
+	 * the leaf-level fanout cannot exceed the number of bits in
+	 * the rcu_node masks.  Finally, the tree must be able to accommodate
+	 * the configured number of CPUs.  Complain and fall back to the
+	 * compile-time values if these limits are exceeded.
+	 */
+	if (rcu_fanout_leaf < CONFIG_RCU_FANOUT_LEAF ||
+	    rcu_fanout_leaf > sizeof(unsigned long) * 8 ||
+	    n > rcu_capacity[MAX_RCU_LVLS]) {
+		WARN_ON(1);
+		return;
+	}
+
+	/* Calculate the number of rcu_nodes at each level of the tree. */
+	for (i = 1; i <= MAX_RCU_LVLS; i++)
+		if (n <= rcu_capacity[i]) {
+			for (j = 0; j <= i; j++)
+				num_rcu_lvl[j] =
+					DIV_ROUND_UP(n, rcu_capacity[i - j]);
+			rcu_num_lvls = i;
+			for (j = i + 1; j <= MAX_RCU_LVLS; j++)
+				num_rcu_lvl[j] = 0;
+			break;
+		}
+
+	/* Calculate the total number of rcu_node structures. */
+	rcu_num_nodes = 0;
+	for (i = 0; i <= MAX_RCU_LVLS; i++)
+		rcu_num_nodes += num_rcu_lvl[i];
+	rcu_num_nodes -= n;
+}
+
+void __init rcu_init(void)
+{
+	int cpu;
+
+	rcu_bootup_announce();
+	rcu_init_geometry();
+	rcu_init_one(&rcu_bh_state, &rcu_bh_data);
+	rcu_init_one(&rcu_sched_state, &rcu_sched_data);
+	__rcu_init_preempt();
+	open_softirq(RCU_SOFTIRQ, rcu_process_callbacks);
+
+	/*
+	 * We don't need protection against CPU-hotplug here because
+	 * this is called early in boot, before either interrupts
+	 * or the scheduler are operational.
+	 */
+	cpu_notifier(rcu_cpu_notify, 0);
+	pm_notifier(rcu_pm_notify, 0);
+	for_each_online_cpu(cpu)
+		rcu_cpu_notify(NULL, CPU_UP_PREPARE, (void *)(long)cpu);
+}
+
+#include "tree_plugin.h"
diff --git a/kernel/rcu/tree.h b/kernel/rcu/tree.h
new file mode 100644
index 000000000000..52be957c9fe2
--- /dev/null
+++ b/kernel/rcu/tree.h
@@ -0,0 +1,585 @@
+/*
+ * Read-Copy Update mechanism for mutual exclusion (tree-based version)
+ * Internal non-public definitions.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright IBM Corporation, 2008
+ *
+ * Author: Ingo Molnar <mingo@elte.hu>
+ *	   Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+ */
+
+#include <linux/cache.h>
+#include <linux/spinlock.h>
+#include <linux/threads.h>
+#include <linux/cpumask.h>
+#include <linux/seqlock.h>
+#include <linux/irq_work.h>
+
+/*
+ * Define shape of hierarchy based on NR_CPUS, CONFIG_RCU_FANOUT, and
+ * CONFIG_RCU_FANOUT_LEAF.
+ * In theory, it should be possible to add more levels straightforwardly.
+ * In practice, this did work well going from three levels to four.
+ * Of course, your mileage may vary.
+ */
+#define MAX_RCU_LVLS 4
+#define RCU_FANOUT_1	      (CONFIG_RCU_FANOUT_LEAF)
+#define RCU_FANOUT_2	      (RCU_FANOUT_1 * CONFIG_RCU_FANOUT)
+#define RCU_FANOUT_3	      (RCU_FANOUT_2 * CONFIG_RCU_FANOUT)
+#define RCU_FANOUT_4	      (RCU_FANOUT_3 * CONFIG_RCU_FANOUT)
+
+#if NR_CPUS <= RCU_FANOUT_1
+#  define RCU_NUM_LVLS	      1
+#  define NUM_RCU_LVL_0	      1
+#  define NUM_RCU_LVL_1	      (NR_CPUS)
+#  define NUM_RCU_LVL_2	      0
+#  define NUM_RCU_LVL_3	      0
+#  define NUM_RCU_LVL_4	      0
+#elif NR_CPUS <= RCU_FANOUT_2
+#  define RCU_NUM_LVLS	      2
+#  define NUM_RCU_LVL_0	      1
+#  define NUM_RCU_LVL_1	      DIV_ROUND_UP(NR_CPUS, RCU_FANOUT_1)
+#  define NUM_RCU_LVL_2	      (NR_CPUS)
+#  define NUM_RCU_LVL_3	      0
+#  define NUM_RCU_LVL_4	      0
+#elif NR_CPUS <= RCU_FANOUT_3
+#  define RCU_NUM_LVLS	      3
+#  define NUM_RCU_LVL_0	      1
+#  define NUM_RCU_LVL_1	      DIV_ROUND_UP(NR_CPUS, RCU_FANOUT_2)
+#  define NUM_RCU_LVL_2	      DIV_ROUND_UP(NR_CPUS, RCU_FANOUT_1)
+#  define NUM_RCU_LVL_3	      (NR_CPUS)
+#  define NUM_RCU_LVL_4	      0
+#elif NR_CPUS <= RCU_FANOUT_4
+#  define RCU_NUM_LVLS	      4
+#  define NUM_RCU_LVL_0	      1
+#  define NUM_RCU_LVL_1	      DIV_ROUND_UP(NR_CPUS, RCU_FANOUT_3)
+#  define NUM_RCU_LVL_2	      DIV_ROUND_UP(NR_CPUS, RCU_FANOUT_2)
+#  define NUM_RCU_LVL_3	      DIV_ROUND_UP(NR_CPUS, RCU_FANOUT_1)
+#  define NUM_RCU_LVL_4	      (NR_CPUS)
+#else
+# error "CONFIG_RCU_FANOUT insufficient for NR_CPUS"
+#endif /* #if (NR_CPUS) <= RCU_FANOUT_1 */
+
+#define RCU_SUM (NUM_RCU_LVL_0 + NUM_RCU_LVL_1 + NUM_RCU_LVL_2 + NUM_RCU_LVL_3 + NUM_RCU_LVL_4)
+#define NUM_RCU_NODES (RCU_SUM - NR_CPUS)
+
+extern int rcu_num_lvls;
+extern int rcu_num_nodes;
+
+/*
+ * Dynticks per-CPU state.
+ */
+struct rcu_dynticks {
+	long long dynticks_nesting; /* Track irq/process nesting level. */
+				    /* Process level is worth LLONG_MAX/2. */
+	int dynticks_nmi_nesting;   /* Track NMI nesting level. */
+	atomic_t dynticks;	    /* Even value for idle, else odd. */
+#ifdef CONFIG_NO_HZ_FULL_SYSIDLE
+	long long dynticks_idle_nesting;
+				    /* irq/process nesting level from idle. */
+	atomic_t dynticks_idle;	    /* Even value for idle, else odd. */
+				    /*  "Idle" excludes userspace execution. */
+	unsigned long dynticks_idle_jiffies;
+				    /* End of last non-NMI non-idle period. */
+#endif /* #ifdef CONFIG_NO_HZ_FULL_SYSIDLE */
+#ifdef CONFIG_RCU_FAST_NO_HZ
+	bool all_lazy;		    /* Are all CPU's CBs lazy? */
+	unsigned long nonlazy_posted;
+				    /* # times non-lazy CBs posted to CPU. */
+	unsigned long nonlazy_posted_snap;
+				    /* idle-period nonlazy_posted snapshot. */
+	unsigned long last_accelerate;
+				    /* Last jiffy CBs were accelerated. */
+	unsigned long last_advance_all;
+				    /* Last jiffy CBs were all advanced. */
+	int tick_nohz_enabled_snap; /* Previously seen value from sysfs. */
+#endif /* #ifdef CONFIG_RCU_FAST_NO_HZ */
+};
+
+/* RCU's kthread states for tracing. */
+#define RCU_KTHREAD_STOPPED  0
+#define RCU_KTHREAD_RUNNING  1
+#define RCU_KTHREAD_WAITING  2
+#define RCU_KTHREAD_OFFCPU   3
+#define RCU_KTHREAD_YIELDING 4
+#define RCU_KTHREAD_MAX      4
+
+/*
+ * Definition for node within the RCU grace-period-detection hierarchy.
+ */
+struct rcu_node {
+	raw_spinlock_t lock;	/* Root rcu_node's lock protects some */
+				/*  rcu_state fields as well as following. */
+	unsigned long gpnum;	/* Current grace period for this node. */
+				/*  This will either be equal to or one */
+				/*  behind the root rcu_node's gpnum. */
+	unsigned long completed; /* Last GP completed for this node. */
+				/*  This will either be equal to or one */
+				/*  behind the root rcu_node's gpnum. */
+	unsigned long qsmask;	/* CPUs or groups that need to switch in */
+				/*  order for current grace period to proceed.*/
+				/*  In leaf rcu_node, each bit corresponds to */
+				/*  an rcu_data structure, otherwise, each */
+				/*  bit corresponds to a child rcu_node */
+				/*  structure. */
+	unsigned long expmask;	/* Groups that have ->blkd_tasks */
+				/*  elements that need to drain to allow the */
+				/*  current expedited grace period to */
+				/*  complete (only for TREE_PREEMPT_RCU). */
+	unsigned long qsmaskinit;
+				/* Per-GP initial value for qsmask & expmask. */
+	unsigned long grpmask;	/* Mask to apply to parent qsmask. */
+				/*  Only one bit will be set in this mask. */
+	int	grplo;		/* lowest-numbered CPU or group here. */
+	int	grphi;		/* highest-numbered CPU or group here. */
+	u8	grpnum;		/* CPU/group number for next level up. */
+	u8	level;		/* root is at level 0. */
+	struct rcu_node *parent;
+	struct list_head blkd_tasks;
+				/* Tasks blocked in RCU read-side critical */
+				/*  section.  Tasks are placed at the head */
+				/*  of this list and age towards the tail. */
+	struct list_head *gp_tasks;
+				/* Pointer to the first task blocking the */
+				/*  current grace period, or NULL if there */
+				/*  is no such task. */
+	struct list_head *exp_tasks;
+				/* Pointer to the first task blocking the */
+				/*  current expedited grace period, or NULL */
+				/*  if there is no such task.  If there */
+				/*  is no current expedited grace period, */
+				/*  then there can cannot be any such task. */
+#ifdef CONFIG_RCU_BOOST
+	struct list_head *boost_tasks;
+				/* Pointer to first task that needs to be */
+				/*  priority boosted, or NULL if no priority */
+				/*  boosting is needed for this rcu_node */
+				/*  structure.  If there are no tasks */
+				/*  queued on this rcu_node structure that */
+				/*  are blocking the current grace period, */
+				/*  there can be no such task. */
+	unsigned long boost_time;
+				/* When to start boosting (jiffies). */
+	struct task_struct *boost_kthread_task;
+				/* kthread that takes care of priority */
+				/*  boosting for this rcu_node structure. */
+	unsigned int boost_kthread_status;
+				/* State of boost_kthread_task for tracing. */
+	unsigned long n_tasks_boosted;
+				/* Total number of tasks boosted. */
+	unsigned long n_exp_boosts;
+				/* Number of tasks boosted for expedited GP. */
+	unsigned long n_normal_boosts;
+				/* Number of tasks boosted for normal GP. */
+	unsigned long n_balk_blkd_tasks;
+				/* Refused to boost: no blocked tasks. */
+	unsigned long n_balk_exp_gp_tasks;
+				/* Refused to boost: nothing blocking GP. */
+	unsigned long n_balk_boost_tasks;
+				/* Refused to boost: already boosting. */
+	unsigned long n_balk_notblocked;
+				/* Refused to boost: RCU RS CS still running. */
+	unsigned long n_balk_notyet;
+				/* Refused to boost: not yet time. */
+	unsigned long n_balk_nos;
+				/* Refused to boost: not sure why, though. */
+				/*  This can happen due to race conditions. */
+#endif /* #ifdef CONFIG_RCU_BOOST */
+#ifdef CONFIG_RCU_NOCB_CPU
+	wait_queue_head_t nocb_gp_wq[2];
+				/* Place for rcu_nocb_kthread() to wait GP. */
+#endif /* #ifdef CONFIG_RCU_NOCB_CPU */
+	int need_future_gp[2];
+				/* Counts of upcoming no-CB GP requests. */
+	raw_spinlock_t fqslock ____cacheline_internodealigned_in_smp;
+} ____cacheline_internodealigned_in_smp;
+
+/*
+ * Do a full breadth-first scan of the rcu_node structures for the
+ * specified rcu_state structure.
+ */
+#define rcu_for_each_node_breadth_first(rsp, rnp) \
+	for ((rnp) = &(rsp)->node[0]; \
+	     (rnp) < &(rsp)->node[rcu_num_nodes]; (rnp)++)
+
+/*
+ * Do a breadth-first scan of the non-leaf rcu_node structures for the
+ * specified rcu_state structure.  Note that if there is a singleton
+ * rcu_node tree with but one rcu_node structure, this loop is a no-op.
+ */
+#define rcu_for_each_nonleaf_node_breadth_first(rsp, rnp) \
+	for ((rnp) = &(rsp)->node[0]; \
+	     (rnp) < (rsp)->level[rcu_num_lvls - 1]; (rnp)++)
+
+/*
+ * Scan the leaves of the rcu_node hierarchy for the specified rcu_state
+ * structure.  Note that if there is a singleton rcu_node tree with but
+ * one rcu_node structure, this loop -will- visit the rcu_node structure.
+ * It is still a leaf node, even if it is also the root node.
+ */
+#define rcu_for_each_leaf_node(rsp, rnp) \
+	for ((rnp) = (rsp)->level[rcu_num_lvls - 1]; \
+	     (rnp) < &(rsp)->node[rcu_num_nodes]; (rnp)++)
+
+/* Index values for nxttail array in struct rcu_data. */
+#define RCU_DONE_TAIL		0	/* Also RCU_WAIT head. */
+#define RCU_WAIT_TAIL		1	/* Also RCU_NEXT_READY head. */
+#define RCU_NEXT_READY_TAIL	2	/* Also RCU_NEXT head. */
+#define RCU_NEXT_TAIL		3
+#define RCU_NEXT_SIZE		4
+
+/* Per-CPU data for read-copy update. */
+struct rcu_data {
+	/* 1) quiescent-state and grace-period handling : */
+	unsigned long	completed;	/* Track rsp->completed gp number */
+					/*  in order to detect GP end. */
+	unsigned long	gpnum;		/* Highest gp number that this CPU */
+					/*  is aware of having started. */
+	bool		passed_quiesce;	/* User-mode/idle loop etc. */
+	bool		qs_pending;	/* Core waits for quiesc state. */
+	bool		beenonline;	/* CPU online at least once. */
+	bool		preemptible;	/* Preemptible RCU? */
+	struct rcu_node *mynode;	/* This CPU's leaf of hierarchy */
+	unsigned long grpmask;		/* Mask to apply to leaf qsmask. */
+#ifdef CONFIG_RCU_CPU_STALL_INFO
+	unsigned long	ticks_this_gp;	/* The number of scheduling-clock */
+					/*  ticks this CPU has handled */
+					/*  during and after the last grace */
+					/* period it is aware of. */
+#endif /* #ifdef CONFIG_RCU_CPU_STALL_INFO */
+
+	/* 2) batch handling */
+	/*
+	 * If nxtlist is not NULL, it is partitioned as follows.
+	 * Any of the partitions might be empty, in which case the
+	 * pointer to that partition will be equal to the pointer for
+	 * the following partition.  When the list is empty, all of
+	 * the nxttail elements point to the ->nxtlist pointer itself,
+	 * which in that case is NULL.
+	 *
+	 * [nxtlist, *nxttail[RCU_DONE_TAIL]):
+	 *	Entries that batch # <= ->completed
+	 *	The grace period for these entries has completed, and
+	 *	the other grace-period-completed entries may be moved
+	 *	here temporarily in rcu_process_callbacks().
+	 * [*nxttail[RCU_DONE_TAIL], *nxttail[RCU_WAIT_TAIL]):
+	 *	Entries that batch # <= ->completed - 1: waiting for current GP
+	 * [*nxttail[RCU_WAIT_TAIL], *nxttail[RCU_NEXT_READY_TAIL]):
+	 *	Entries known to have arrived before current GP ended
+	 * [*nxttail[RCU_NEXT_READY_TAIL], *nxttail[RCU_NEXT_TAIL]):
+	 *	Entries that might have arrived after current GP ended
+	 *	Note that the value of *nxttail[RCU_NEXT_TAIL] will
+	 *	always be NULL, as this is the end of the list.
+	 */
+	struct rcu_head *nxtlist;
+	struct rcu_head **nxttail[RCU_NEXT_SIZE];
+	unsigned long	nxtcompleted[RCU_NEXT_SIZE];
+					/* grace periods for sublists. */
+	long		qlen_lazy;	/* # of lazy queued callbacks */
+	long		qlen;		/* # of queued callbacks, incl lazy */
+	long		qlen_last_fqs_check;
+					/* qlen at last check for QS forcing */
+	unsigned long	n_cbs_invoked;	/* count of RCU cbs invoked. */
+	unsigned long	n_nocbs_invoked; /* count of no-CBs RCU cbs invoked. */
+	unsigned long   n_cbs_orphaned; /* RCU cbs orphaned by dying CPU */
+	unsigned long   n_cbs_adopted;  /* RCU cbs adopted from dying CPU */
+	unsigned long	n_force_qs_snap;
+					/* did other CPU force QS recently? */
+	long		blimit;		/* Upper limit on a processed batch */
+
+	/* 3) dynticks interface. */
+	struct rcu_dynticks *dynticks;	/* Shared per-CPU dynticks state. */
+	int dynticks_snap;		/* Per-GP tracking for dynticks. */
+
+	/* 4) reasons this CPU needed to be kicked by force_quiescent_state */
+	unsigned long dynticks_fqs;	/* Kicked due to dynticks idle. */
+	unsigned long offline_fqs;	/* Kicked due to being offline. */
+
+	/* 5) __rcu_pending() statistics. */
+	unsigned long n_rcu_pending;	/* rcu_pending() calls since boot. */
+	unsigned long n_rp_qs_pending;
+	unsigned long n_rp_report_qs;
+	unsigned long n_rp_cb_ready;
+	unsigned long n_rp_cpu_needs_gp;
+	unsigned long n_rp_gp_completed;
+	unsigned long n_rp_gp_started;
+	unsigned long n_rp_need_nothing;
+
+	/* 6) _rcu_barrier() and OOM callbacks. */
+	struct rcu_head barrier_head;
+#ifdef CONFIG_RCU_FAST_NO_HZ
+	struct rcu_head oom_head;
+#endif /* #ifdef CONFIG_RCU_FAST_NO_HZ */
+
+	/* 7) Callback offloading. */
+#ifdef CONFIG_RCU_NOCB_CPU
+	struct rcu_head *nocb_head;	/* CBs waiting for kthread. */
+	struct rcu_head **nocb_tail;
+	atomic_long_t nocb_q_count;	/* # CBs waiting for kthread */
+	atomic_long_t nocb_q_count_lazy; /*  (approximate). */
+	int nocb_p_count;		/* # CBs being invoked by kthread */
+	int nocb_p_count_lazy;		/*  (approximate). */
+	wait_queue_head_t nocb_wq;	/* For nocb kthreads to sleep on. */
+	struct task_struct *nocb_kthread;
+#endif /* #ifdef CONFIG_RCU_NOCB_CPU */
+
+	/* 8) RCU CPU stall data. */
+#ifdef CONFIG_RCU_CPU_STALL_INFO
+	unsigned int softirq_snap;	/* Snapshot of softirq activity. */
+#endif /* #ifdef CONFIG_RCU_CPU_STALL_INFO */
+
+	int cpu;
+	struct rcu_state *rsp;
+};
+
+/* Values for fqs_state field in struct rcu_state. */
+#define RCU_GP_IDLE		0	/* No grace period in progress. */
+#define RCU_GP_INIT		1	/* Grace period being initialized. */
+#define RCU_SAVE_DYNTICK	2	/* Need to scan dyntick state. */
+#define RCU_FORCE_QS		3	/* Need to force quiescent state. */
+#define RCU_SIGNAL_INIT		RCU_SAVE_DYNTICK
+
+#define RCU_JIFFIES_TILL_FORCE_QS (1 + (HZ > 250) + (HZ > 500))
+					/* For jiffies_till_first_fqs and */
+					/*  and jiffies_till_next_fqs. */
+
+#define RCU_JIFFIES_FQS_DIV	256	/* Very large systems need more */
+					/*  delay between bouts of */
+					/*  quiescent-state forcing. */
+
+#define RCU_STALL_RAT_DELAY	2	/* Allow other CPUs time to take */
+					/*  at least one scheduling clock */
+					/*  irq before ratting on them. */
+
+#define rcu_wait(cond)							\
+do {									\
+	for (;;) {							\
+		set_current_state(TASK_INTERRUPTIBLE);			\
+		if (cond)						\
+			break;						\
+		schedule();						\
+	}								\
+	__set_current_state(TASK_RUNNING);				\
+} while (0)
+
+/*
+ * RCU global state, including node hierarchy.  This hierarchy is
+ * represented in "heap" form in a dense array.  The root (first level)
+ * of the hierarchy is in ->node[0] (referenced by ->level[0]), the second
+ * level in ->node[1] through ->node[m] (->node[1] referenced by ->level[1]),
+ * and the third level in ->node[m+1] and following (->node[m+1] referenced
+ * by ->level[2]).  The number of levels is determined by the number of
+ * CPUs and by CONFIG_RCU_FANOUT.  Small systems will have a "hierarchy"
+ * consisting of a single rcu_node.
+ */
+struct rcu_state {
+	struct rcu_node node[NUM_RCU_NODES];	/* Hierarchy. */
+	struct rcu_node *level[RCU_NUM_LVLS];	/* Hierarchy levels. */
+	u32 levelcnt[MAX_RCU_LVLS + 1];		/* # nodes in each level. */
+	u8 levelspread[RCU_NUM_LVLS];		/* kids/node in each level. */
+	struct rcu_data __percpu *rda;		/* pointer of percu rcu_data. */
+	void (*call)(struct rcu_head *head,	/* call_rcu() flavor. */
+		     void (*func)(struct rcu_head *head));
+
+	/* The following fields are guarded by the root rcu_node's lock. */
+
+	u8	fqs_state ____cacheline_internodealigned_in_smp;
+						/* Force QS state. */
+	u8	boost;				/* Subject to priority boost. */
+	unsigned long gpnum;			/* Current gp number. */
+	unsigned long completed;		/* # of last completed gp. */
+	struct task_struct *gp_kthread;		/* Task for grace periods. */
+	wait_queue_head_t gp_wq;		/* Where GP task waits. */
+	int gp_flags;				/* Commands for GP task. */
+
+	/* End of fields guarded by root rcu_node's lock. */
+
+	raw_spinlock_t orphan_lock ____cacheline_internodealigned_in_smp;
+						/* Protect following fields. */
+	struct rcu_head *orphan_nxtlist;	/* Orphaned callbacks that */
+						/*  need a grace period. */
+	struct rcu_head **orphan_nxttail;	/* Tail of above. */
+	struct rcu_head *orphan_donelist;	/* Orphaned callbacks that */
+						/*  are ready to invoke. */
+	struct rcu_head **orphan_donetail;	/* Tail of above. */
+	long qlen_lazy;				/* Number of lazy callbacks. */
+	long qlen;				/* Total number of callbacks. */
+	/* End of fields guarded by orphan_lock. */
+
+	struct mutex onoff_mutex;		/* Coordinate hotplug & GPs. */
+
+	struct mutex barrier_mutex;		/* Guards barrier fields. */
+	atomic_t barrier_cpu_count;		/* # CPUs waiting on. */
+	struct completion barrier_completion;	/* Wake at barrier end. */
+	unsigned long n_barrier_done;		/* ++ at start and end of */
+						/*  _rcu_barrier(). */
+	/* End of fields guarded by barrier_mutex. */
+
+	atomic_long_t expedited_start;		/* Starting ticket. */
+	atomic_long_t expedited_done;		/* Done ticket. */
+	atomic_long_t expedited_wrap;		/* # near-wrap incidents. */
+	atomic_long_t expedited_tryfail;	/* # acquisition failures. */
+	atomic_long_t expedited_workdone1;	/* # done by others #1. */
+	atomic_long_t expedited_workdone2;	/* # done by others #2. */
+	atomic_long_t expedited_normal;		/* # fallbacks to normal. */
+	atomic_long_t expedited_stoppedcpus;	/* # successful stop_cpus. */
+	atomic_long_t expedited_done_tries;	/* # tries to update _done. */
+	atomic_long_t expedited_done_lost;	/* # times beaten to _done. */
+	atomic_long_t expedited_done_exit;	/* # times exited _done loop. */
+
+	unsigned long jiffies_force_qs;		/* Time at which to invoke */
+						/*  force_quiescent_state(). */
+	unsigned long n_force_qs;		/* Number of calls to */
+						/*  force_quiescent_state(). */
+	unsigned long n_force_qs_lh;		/* ~Number of calls leaving */
+						/*  due to lock unavailable. */
+	unsigned long n_force_qs_ngp;		/* Number of calls leaving */
+						/*  due to no GP active. */
+	unsigned long gp_start;			/* Time at which GP started, */
+						/*  but in jiffies. */
+	unsigned long jiffies_stall;		/* Time at which to check */
+						/*  for CPU stalls. */
+	unsigned long gp_max;			/* Maximum GP duration in */
+						/*  jiffies. */
+	const char *name;			/* Name of structure. */
+	char abbr;				/* Abbreviated name. */
+	struct list_head flavors;		/* List of RCU flavors. */
+	struct irq_work wakeup_work;		/* Postponed wakeups */
+};
+
+/* Values for rcu_state structure's gp_flags field. */
+#define RCU_GP_FLAG_INIT 0x1	/* Need grace-period initialization. */
+#define RCU_GP_FLAG_FQS  0x2	/* Need grace-period quiescent-state forcing. */
+
+extern struct list_head rcu_struct_flavors;
+
+/* Sequence through rcu_state structures for each RCU flavor. */
+#define for_each_rcu_flavor(rsp) \
+	list_for_each_entry((rsp), &rcu_struct_flavors, flavors)
+
+/* Return values for rcu_preempt_offline_tasks(). */
+
+#define RCU_OFL_TASKS_NORM_GP	0x1		/* Tasks blocking normal */
+						/*  GP were moved to root. */
+#define RCU_OFL_TASKS_EXP_GP	0x2		/* Tasks blocking expedited */
+						/*  GP were moved to root. */
+
+/*
+ * RCU implementation internal declarations:
+ */
+extern struct rcu_state rcu_sched_state;
+DECLARE_PER_CPU(struct rcu_data, rcu_sched_data);
+
+extern struct rcu_state rcu_bh_state;
+DECLARE_PER_CPU(struct rcu_data, rcu_bh_data);
+
+#ifdef CONFIG_TREE_PREEMPT_RCU
+extern struct rcu_state rcu_preempt_state;
+DECLARE_PER_CPU(struct rcu_data, rcu_preempt_data);
+#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */
+
+#ifdef CONFIG_RCU_BOOST
+DECLARE_PER_CPU(unsigned int, rcu_cpu_kthread_status);
+DECLARE_PER_CPU(int, rcu_cpu_kthread_cpu);
+DECLARE_PER_CPU(unsigned int, rcu_cpu_kthread_loops);
+DECLARE_PER_CPU(char, rcu_cpu_has_work);
+#endif /* #ifdef CONFIG_RCU_BOOST */
+
+#ifndef RCU_TREE_NONCORE
+
+/* Forward declarations for rcutree_plugin.h */
+static void rcu_bootup_announce(void);
+long rcu_batches_completed(void);
+static void rcu_preempt_note_context_switch(int cpu);
+static int rcu_preempt_blocked_readers_cgp(struct rcu_node *rnp);
+#ifdef CONFIG_HOTPLUG_CPU
+static void rcu_report_unblock_qs_rnp(struct rcu_node *rnp,
+				      unsigned long flags);
+#endif /* #ifdef CONFIG_HOTPLUG_CPU */
+static void rcu_print_detail_task_stall(struct rcu_state *rsp);
+static int rcu_print_task_stall(struct rcu_node *rnp);
+static void rcu_preempt_check_blocked_tasks(struct rcu_node *rnp);
+#ifdef CONFIG_HOTPLUG_CPU
+static int rcu_preempt_offline_tasks(struct rcu_state *rsp,
+				     struct rcu_node *rnp,
+				     struct rcu_data *rdp);
+#endif /* #ifdef CONFIG_HOTPLUG_CPU */
+static void rcu_preempt_check_callbacks(int cpu);
+void call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu));
+#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_TREE_PREEMPT_RCU)
+static void rcu_report_exp_rnp(struct rcu_state *rsp, struct rcu_node *rnp,
+			       bool wake);
+#endif /* #if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_TREE_PREEMPT_RCU) */
+static void __init __rcu_init_preempt(void);
+static void rcu_initiate_boost(struct rcu_node *rnp, unsigned long flags);
+static void rcu_preempt_boost_start_gp(struct rcu_node *rnp);
+static void invoke_rcu_callbacks_kthread(void);
+static bool rcu_is_callbacks_kthread(void);
+#ifdef CONFIG_RCU_BOOST
+static void rcu_preempt_do_callbacks(void);
+static int rcu_spawn_one_boost_kthread(struct rcu_state *rsp,
+						 struct rcu_node *rnp);
+#endif /* #ifdef CONFIG_RCU_BOOST */
+static void rcu_prepare_kthreads(int cpu);
+static void rcu_cleanup_after_idle(int cpu);
+static void rcu_prepare_for_idle(int cpu);
+static void rcu_idle_count_callbacks_posted(void);
+static void print_cpu_stall_info_begin(void);
+static void print_cpu_stall_info(struct rcu_state *rsp, int cpu);
+static void print_cpu_stall_info_end(void);
+static void zero_cpu_stall_ticks(struct rcu_data *rdp);
+static void increment_cpu_stall_ticks(void);
+static int rcu_nocb_needs_gp(struct rcu_state *rsp);
+static void rcu_nocb_gp_set(struct rcu_node *rnp, int nrq);
+static void rcu_nocb_gp_cleanup(struct rcu_state *rsp, struct rcu_node *rnp);
+static void rcu_init_one_nocb(struct rcu_node *rnp);
+static bool __call_rcu_nocb(struct rcu_data *rdp, struct rcu_head *rhp,
+			    bool lazy);
+static bool rcu_nocb_adopt_orphan_cbs(struct rcu_state *rsp,
+				      struct rcu_data *rdp);
+static void rcu_boot_init_nocb_percpu_data(struct rcu_data *rdp);
+static void rcu_spawn_nocb_kthreads(struct rcu_state *rsp);
+static void rcu_kick_nohz_cpu(int cpu);
+static bool init_nocb_callback_list(struct rcu_data *rdp);
+static void rcu_sysidle_enter(struct rcu_dynticks *rdtp, int irq);
+static void rcu_sysidle_exit(struct rcu_dynticks *rdtp, int irq);
+static void rcu_sysidle_check_cpu(struct rcu_data *rdp, bool *isidle,
+				  unsigned long *maxj);
+static bool is_sysidle_rcu_state(struct rcu_state *rsp);
+static void rcu_sysidle_report_gp(struct rcu_state *rsp, int isidle,
+				  unsigned long maxj);
+static void rcu_bind_gp_kthread(void);
+static void rcu_sysidle_init_percpu_data(struct rcu_dynticks *rdtp);
+
+#endif /* #ifndef RCU_TREE_NONCORE */
+
+#ifdef CONFIG_RCU_TRACE
+#ifdef CONFIG_RCU_NOCB_CPU
+/* Sum up queue lengths for tracing. */
+static inline void rcu_nocb_q_lengths(struct rcu_data *rdp, long *ql, long *qll)
+{
+	*ql = atomic_long_read(&rdp->nocb_q_count) + rdp->nocb_p_count;
+	*qll = atomic_long_read(&rdp->nocb_q_count_lazy) + rdp->nocb_p_count_lazy;
+}
+#else /* #ifdef CONFIG_RCU_NOCB_CPU */
+static inline void rcu_nocb_q_lengths(struct rcu_data *rdp, long *ql, long *qll)
+{
+	*ql = 0;
+	*qll = 0;
+}
+#endif /* #else #ifdef CONFIG_RCU_NOCB_CPU */
+#endif /* #ifdef CONFIG_RCU_TRACE */
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
new file mode 100644
index 000000000000..3822ac0c4b27
--- /dev/null
+++ b/kernel/rcu/tree_plugin.h
@@ -0,0 +1,2831 @@
+/*
+ * Read-Copy Update mechanism for mutual exclusion (tree-based version)
+ * Internal non-public definitions that provide either classic
+ * or preemptible semantics.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright Red Hat, 2009
+ * Copyright IBM Corporation, 2009
+ *
+ * Author: Ingo Molnar <mingo@elte.hu>
+ *	   Paul E. McKenney <paulmck@linux.vnet.ibm.com>
+ */
+
+#include <linux/delay.h>
+#include <linux/gfp.h>
+#include <linux/oom.h>
+#include <linux/smpboot.h>
+#include "../time/tick-internal.h"
+
+#define RCU_KTHREAD_PRIO 1
+
+#ifdef CONFIG_RCU_BOOST
+#define RCU_BOOST_PRIO CONFIG_RCU_BOOST_PRIO
+#else
+#define RCU_BOOST_PRIO RCU_KTHREAD_PRIO
+#endif
+
+#ifdef CONFIG_RCU_NOCB_CPU
+static cpumask_var_t rcu_nocb_mask; /* CPUs to have callbacks offloaded. */
+static bool have_rcu_nocb_mask;	    /* Was rcu_nocb_mask allocated? */
+static bool __read_mostly rcu_nocb_poll;    /* Offload kthread are to poll. */
+static char __initdata nocb_buf[NR_CPUS * 5];
+#endif /* #ifdef CONFIG_RCU_NOCB_CPU */
+
+/*
+ * Check the RCU kernel configuration parameters and print informative
+ * messages about anything out of the ordinary.  If you like #ifdef, you
+ * will love this function.
+ */
+static void __init rcu_bootup_announce_oddness(void)
+{
+#ifdef CONFIG_RCU_TRACE
+	pr_info("\tRCU debugfs-based tracing is enabled.\n");
+#endif
+#if (defined(CONFIG_64BIT) && CONFIG_RCU_FANOUT != 64) || (!defined(CONFIG_64BIT) && CONFIG_RCU_FANOUT != 32)
+	pr_info("\tCONFIG_RCU_FANOUT set to non-default value of %d\n",
+	       CONFIG_RCU_FANOUT);
+#endif
+#ifdef CONFIG_RCU_FANOUT_EXACT
+	pr_info("\tHierarchical RCU autobalancing is disabled.\n");
+#endif
+#ifdef CONFIG_RCU_FAST_NO_HZ
+	pr_info("\tRCU dyntick-idle grace-period acceleration is enabled.\n");
+#endif
+#ifdef CONFIG_PROVE_RCU
+	pr_info("\tRCU lockdep checking is enabled.\n");
+#endif
+#ifdef CONFIG_RCU_TORTURE_TEST_RUNNABLE
+	pr_info("\tRCU torture testing starts during boot.\n");
+#endif
+#if defined(CONFIG_TREE_PREEMPT_RCU) && !defined(CONFIG_RCU_CPU_STALL_VERBOSE)
+	pr_info("\tDump stacks of tasks blocking RCU-preempt GP.\n");
+#endif
+#if defined(CONFIG_RCU_CPU_STALL_INFO)
+	pr_info("\tAdditional per-CPU info printed with stalls.\n");
+#endif
+#if NUM_RCU_LVL_4 != 0
+	pr_info("\tFour-level hierarchy is enabled.\n");
+#endif
+	if (rcu_fanout_leaf != CONFIG_RCU_FANOUT_LEAF)
+		pr_info("\tBoot-time adjustment of leaf fanout to %d.\n", rcu_fanout_leaf);
+	if (nr_cpu_ids != NR_CPUS)
+		pr_info("\tRCU restricting CPUs from NR_CPUS=%d to nr_cpu_ids=%d.\n", NR_CPUS, nr_cpu_ids);
+#ifdef CONFIG_RCU_NOCB_CPU
+#ifndef CONFIG_RCU_NOCB_CPU_NONE
+	if (!have_rcu_nocb_mask) {
+		zalloc_cpumask_var(&rcu_nocb_mask, GFP_KERNEL);
+		have_rcu_nocb_mask = true;
+	}
+#ifdef CONFIG_RCU_NOCB_CPU_ZERO
+	pr_info("\tOffload RCU callbacks from CPU 0\n");
+	cpumask_set_cpu(0, rcu_nocb_mask);
+#endif /* #ifdef CONFIG_RCU_NOCB_CPU_ZERO */
+#ifdef CONFIG_RCU_NOCB_CPU_ALL
+	pr_info("\tOffload RCU callbacks from all CPUs\n");
+	cpumask_copy(rcu_nocb_mask, cpu_possible_mask);
+#endif /* #ifdef CONFIG_RCU_NOCB_CPU_ALL */
+#endif /* #ifndef CONFIG_RCU_NOCB_CPU_NONE */
+	if (have_rcu_nocb_mask) {
+		if (!cpumask_subset(rcu_nocb_mask, cpu_possible_mask)) {
+			pr_info("\tNote: kernel parameter 'rcu_nocbs=' contains nonexistent CPUs.\n");
+			cpumask_and(rcu_nocb_mask, cpu_possible_mask,
+				    rcu_nocb_mask);
+		}
+		cpulist_scnprintf(nocb_buf, sizeof(nocb_buf), rcu_nocb_mask);
+		pr_info("\tOffload RCU callbacks from CPUs: %s.\n", nocb_buf);
+		if (rcu_nocb_poll)
+			pr_info("\tPoll for callbacks from no-CBs CPUs.\n");
+	}
+#endif /* #ifdef CONFIG_RCU_NOCB_CPU */
+}
+
+#ifdef CONFIG_TREE_PREEMPT_RCU
+
+RCU_STATE_INITIALIZER(rcu_preempt, 'p', call_rcu);
+static struct rcu_state *rcu_state = &rcu_preempt_state;
+
+static int rcu_preempted_readers_exp(struct rcu_node *rnp);
+
+/*
+ * Tell them what RCU they are running.
+ */
+static void __init rcu_bootup_announce(void)
+{
+	pr_info("Preemptible hierarchical RCU implementation.\n");
+	rcu_bootup_announce_oddness();
+}
+
+/*
+ * Return the number of RCU-preempt batches processed thus far
+ * for debug and statistics.
+ */
+long rcu_batches_completed_preempt(void)
+{
+	return rcu_preempt_state.completed;
+}
+EXPORT_SYMBOL_GPL(rcu_batches_completed_preempt);
+
+/*
+ * Return the number of RCU batches processed thus far for debug & stats.
+ */
+long rcu_batches_completed(void)
+{
+	return rcu_batches_completed_preempt();
+}
+EXPORT_SYMBOL_GPL(rcu_batches_completed);
+
+/*
+ * Force a quiescent state for preemptible RCU.
+ */
+void rcu_force_quiescent_state(void)
+{
+	force_quiescent_state(&rcu_preempt_state);
+}
+EXPORT_SYMBOL_GPL(rcu_force_quiescent_state);
+
+/*
+ * Record a preemptible-RCU quiescent state for the specified CPU.  Note
+ * that this just means that the task currently running on the CPU is
+ * not in a quiescent state.  There might be any number of tasks blocked
+ * while in an RCU read-side critical section.
+ *
+ * Unlike the other rcu_*_qs() functions, callers to this function
+ * must disable irqs in order to protect the assignment to
+ * ->rcu_read_unlock_special.
+ */
+static void rcu_preempt_qs(int cpu)
+{
+	struct rcu_data *rdp = &per_cpu(rcu_preempt_data, cpu);
+
+	if (rdp->passed_quiesce == 0)
+		trace_rcu_grace_period(TPS("rcu_preempt"), rdp->gpnum, TPS("cpuqs"));
+	rdp->passed_quiesce = 1;
+	current->rcu_read_unlock_special &= ~RCU_READ_UNLOCK_NEED_QS;
+}
+
+/*
+ * We have entered the scheduler, and the current task might soon be
+ * context-switched away from.  If this task is in an RCU read-side
+ * critical section, we will no longer be able to rely on the CPU to
+ * record that fact, so we enqueue the task on the blkd_tasks list.
+ * The task will dequeue itself when it exits the outermost enclosing
+ * RCU read-side critical section.  Therefore, the current grace period
+ * cannot be permitted to complete until the blkd_tasks list entries
+ * predating the current grace period drain, in other words, until
+ * rnp->gp_tasks becomes NULL.
+ *
+ * Caller must disable preemption.
+ */
+static void rcu_preempt_note_context_switch(int cpu)
+{
+	struct task_struct *t = current;
+	unsigned long flags;
+	struct rcu_data *rdp;
+	struct rcu_node *rnp;
+
+	if (t->rcu_read_lock_nesting > 0 &&
+	    (t->rcu_read_unlock_special & RCU_READ_UNLOCK_BLOCKED) == 0) {
+
+		/* Possibly blocking in an RCU read-side critical section. */
+		rdp = per_cpu_ptr(rcu_preempt_state.rda, cpu);
+		rnp = rdp->mynode;
+		raw_spin_lock_irqsave(&rnp->lock, flags);
+		t->rcu_read_unlock_special |= RCU_READ_UNLOCK_BLOCKED;
+		t->rcu_blocked_node = rnp;
+
+		/*
+		 * If this CPU has already checked in, then this task
+		 * will hold up the next grace period rather than the
+		 * current grace period.  Queue the task accordingly.
+		 * If the task is queued for the current grace period
+		 * (i.e., this CPU has not yet passed through a quiescent
+		 * state for the current grace period), then as long
+		 * as that task remains queued, the current grace period
+		 * cannot end.  Note that there is some uncertainty as
+		 * to exactly when the current grace period started.
+		 * We take a conservative approach, which can result
+		 * in unnecessarily waiting on tasks that started very
+		 * slightly after the current grace period began.  C'est
+		 * la vie!!!
+		 *
+		 * But first, note that the current CPU must still be
+		 * on line!
+		 */
+		WARN_ON_ONCE((rdp->grpmask & rnp->qsmaskinit) == 0);
+		WARN_ON_ONCE(!list_empty(&t->rcu_node_entry));
+		if ((rnp->qsmask & rdp->grpmask) && rnp->gp_tasks != NULL) {
+			list_add(&t->rcu_node_entry, rnp->gp_tasks->prev);
+			rnp->gp_tasks = &t->rcu_node_entry;
+#ifdef CONFIG_RCU_BOOST
+			if (rnp->boost_tasks != NULL)
+				rnp->boost_tasks = rnp->gp_tasks;
+#endif /* #ifdef CONFIG_RCU_BOOST */
+		} else {
+			list_add(&t->rcu_node_entry, &rnp->blkd_tasks);
+			if (rnp->qsmask & rdp->grpmask)
+				rnp->gp_tasks = &t->rcu_node_entry;
+		}
+		trace_rcu_preempt_task(rdp->rsp->name,
+				       t->pid,
+				       (rnp->qsmask & rdp->grpmask)
+				       ? rnp->gpnum
+				       : rnp->gpnum + 1);
+		raw_spin_unlock_irqrestore(&rnp->lock, flags);
+	} else if (t->rcu_read_lock_nesting < 0 &&
+		   t->rcu_read_unlock_special) {
+
+		/*
+		 * Complete exit from RCU read-side critical section on
+		 * behalf of preempted instance of __rcu_read_unlock().
+		 */
+		rcu_read_unlock_special(t);
+	}
+
+	/*
+	 * Either we were not in an RCU read-side critical section to
+	 * begin with, or we have now recorded that critical section
+	 * globally.  Either way, we can now note a quiescent state
+	 * for this CPU.  Again, if we were in an RCU read-side critical
+	 * section, and if that critical section was blocking the current
+	 * grace period, then the fact that the task has been enqueued
+	 * means that we continue to block the current grace period.
+	 */
+	local_irq_save(flags);
+	rcu_preempt_qs(cpu);
+	local_irq_restore(flags);
+}
+
+/*
+ * Check for preempted RCU readers blocking the current grace period
+ * for the specified rcu_node structure.  If the caller needs a reliable
+ * answer, it must hold the rcu_node's ->lock.
+ */
+static int rcu_preempt_blocked_readers_cgp(struct rcu_node *rnp)
+{
+	return rnp->gp_tasks != NULL;
+}
+
+/*
+ * Record a quiescent state for all tasks that were previously queued
+ * on the specified rcu_node structure and that were blocking the current
+ * RCU grace period.  The caller must hold the specified rnp->lock with
+ * irqs disabled, and this lock is released upon return, but irqs remain
+ * disabled.
+ */
+static void rcu_report_unblock_qs_rnp(struct rcu_node *rnp, unsigned long flags)
+	__releases(rnp->lock)
+{
+	unsigned long mask;
+	struct rcu_node *rnp_p;
+
+	if (rnp->qsmask != 0 || rcu_preempt_blocked_readers_cgp(rnp)) {
+		raw_spin_unlock_irqrestore(&rnp->lock, flags);
+		return;  /* Still need more quiescent states! */
+	}
+
+	rnp_p = rnp->parent;
+	if (rnp_p == NULL) {
+		/*
+		 * Either there is only one rcu_node in the tree,
+		 * or tasks were kicked up to root rcu_node due to
+		 * CPUs going offline.
+		 */
+		rcu_report_qs_rsp(&rcu_preempt_state, flags);
+		return;
+	}
+
+	/* Report up the rest of the hierarchy. */
+	mask = rnp->grpmask;
+	raw_spin_unlock(&rnp->lock);	/* irqs remain disabled. */
+	raw_spin_lock(&rnp_p->lock);	/* irqs already disabled. */
+	rcu_report_qs_rnp(mask, &rcu_preempt_state, rnp_p, flags);
+}
+
+/*
+ * Advance a ->blkd_tasks-list pointer to the next entry, instead
+ * returning NULL if at the end of the list.
+ */
+static struct list_head *rcu_next_node_entry(struct task_struct *t,
+					     struct rcu_node *rnp)
+{
+	struct list_head *np;
+
+	np = t->rcu_node_entry.next;
+	if (np == &rnp->blkd_tasks)
+		np = NULL;
+	return np;
+}
+
+/*
+ * Handle special cases during rcu_read_unlock(), such as needing to
+ * notify RCU core processing or task having blocked during the RCU
+ * read-side critical section.
+ */
+void rcu_read_unlock_special(struct task_struct *t)
+{
+	int empty;
+	int empty_exp;
+	int empty_exp_now;
+	unsigned long flags;
+	struct list_head *np;
+#ifdef CONFIG_RCU_BOOST
+	struct rt_mutex *rbmp = NULL;
+#endif /* #ifdef CONFIG_RCU_BOOST */
+	struct rcu_node *rnp;
+	int special;
+
+	/* NMI handlers cannot block and cannot safely manipulate state. */
+	if (in_nmi())
+		return;
+
+	local_irq_save(flags);
+
+	/*
+	 * If RCU core is waiting for this CPU to exit critical section,
+	 * let it know that we have done so.
+	 */
+	special = t->rcu_read_unlock_special;
+	if (special & RCU_READ_UNLOCK_NEED_QS) {
+		rcu_preempt_qs(smp_processor_id());
+	}
+
+	/* Hardware IRQ handlers cannot block. */
+	if (in_irq() || in_serving_softirq()) {
+		local_irq_restore(flags);
+		return;
+	}
+
+	/* Clean up if blocked during RCU read-side critical section. */
+	if (special & RCU_READ_UNLOCK_BLOCKED) {
+		t->rcu_read_unlock_special &= ~RCU_READ_UNLOCK_BLOCKED;
+
+		/*
+		 * Remove this task from the list it blocked on.  The
+		 * task can migrate while we acquire the lock, but at
+		 * most one time.  So at most two passes through loop.
+		 */
+		for (;;) {
+			rnp = t->rcu_blocked_node;
+			raw_spin_lock(&rnp->lock);  /* irqs already disabled. */
+			if (rnp == t->rcu_blocked_node)
+				break;
+			raw_spin_unlock(&rnp->lock); /* irqs remain disabled. */
+		}
+		empty = !rcu_preempt_blocked_readers_cgp(rnp);
+		empty_exp = !rcu_preempted_readers_exp(rnp);
+		smp_mb(); /* ensure expedited fastpath sees end of RCU c-s. */
+		np = rcu_next_node_entry(t, rnp);
+		list_del_init(&t->rcu_node_entry);
+		t->rcu_blocked_node = NULL;
+		trace_rcu_unlock_preempted_task(TPS("rcu_preempt"),
+						rnp->gpnum, t->pid);
+		if (&t->rcu_node_entry == rnp->gp_tasks)
+			rnp->gp_tasks = np;
+		if (&t->rcu_node_entry == rnp->exp_tasks)
+			rnp->exp_tasks = np;
+#ifdef CONFIG_RCU_BOOST
+		if (&t->rcu_node_entry == rnp->boost_tasks)
+			rnp->boost_tasks = np;
+		/* Snapshot/clear ->rcu_boost_mutex with rcu_node lock held. */
+		if (t->rcu_boost_mutex) {
+			rbmp = t->rcu_boost_mutex;
+			t->rcu_boost_mutex = NULL;
+		}
+#endif /* #ifdef CONFIG_RCU_BOOST */
+
+		/*
+		 * If this was the last task on the current list, and if
+		 * we aren't waiting on any CPUs, report the quiescent state.
+		 * Note that rcu_report_unblock_qs_rnp() releases rnp->lock,
+		 * so we must take a snapshot of the expedited state.
+		 */
+		empty_exp_now = !rcu_preempted_readers_exp(rnp);
+		if (!empty && !rcu_preempt_blocked_readers_cgp(rnp)) {
+			trace_rcu_quiescent_state_report(TPS("preempt_rcu"),
+							 rnp->gpnum,
+							 0, rnp->qsmask,
+							 rnp->level,
+							 rnp->grplo,
+							 rnp->grphi,
+							 !!rnp->gp_tasks);
+			rcu_report_unblock_qs_rnp(rnp, flags);
+		} else {
+			raw_spin_unlock_irqrestore(&rnp->lock, flags);
+		}
+
+#ifdef CONFIG_RCU_BOOST
+		/* Unboost if we were boosted. */
+		if (rbmp)
+			rt_mutex_unlock(rbmp);
+#endif /* #ifdef CONFIG_RCU_BOOST */
+
+		/*
+		 * If this was the last task on the expedited lists,
+		 * then we need to report up the rcu_node hierarchy.
+		 */
+		if (!empty_exp && empty_exp_now)
+			rcu_report_exp_rnp(&rcu_preempt_state, rnp, true);
+	} else {
+		local_irq_restore(flags);
+	}
+}
+
+#ifdef CONFIG_RCU_CPU_STALL_VERBOSE
+
+/*
+ * Dump detailed information for all tasks blocking the current RCU
+ * grace period on the specified rcu_node structure.
+ */
+static void rcu_print_detail_task_stall_rnp(struct rcu_node *rnp)
+{
+	unsigned long flags;
+	struct task_struct *t;
+
+	raw_spin_lock_irqsave(&rnp->lock, flags);
+	if (!rcu_preempt_blocked_readers_cgp(rnp)) {
+		raw_spin_unlock_irqrestore(&rnp->lock, flags);
+		return;
+	}
+	t = list_entry(rnp->gp_tasks,
+		       struct task_struct, rcu_node_entry);
+	list_for_each_entry_continue(t, &rnp->blkd_tasks, rcu_node_entry)
+		sched_show_task(t);
+	raw_spin_unlock_irqrestore(&rnp->lock, flags);
+}
+
+/*
+ * Dump detailed information for all tasks blocking the current RCU
+ * grace period.
+ */
+static void rcu_print_detail_task_stall(struct rcu_state *rsp)
+{
+	struct rcu_node *rnp = rcu_get_root(rsp);
+
+	rcu_print_detail_task_stall_rnp(rnp);
+	rcu_for_each_leaf_node(rsp, rnp)
+		rcu_print_detail_task_stall_rnp(rnp);
+}
+
+#else /* #ifdef CONFIG_RCU_CPU_STALL_VERBOSE */
+
+static void rcu_print_detail_task_stall(struct rcu_state *rsp)
+{
+}
+
+#endif /* #else #ifdef CONFIG_RCU_CPU_STALL_VERBOSE */
+
+#ifdef CONFIG_RCU_CPU_STALL_INFO
+
+static void rcu_print_task_stall_begin(struct rcu_node *rnp)
+{
+	pr_err("\tTasks blocked on level-%d rcu_node (CPUs %d-%d):",
+	       rnp->level, rnp->grplo, rnp->grphi);
+}
+
+static void rcu_print_task_stall_end(void)
+{
+	pr_cont("\n");
+}
+
+#else /* #ifdef CONFIG_RCU_CPU_STALL_INFO */
+
+static void rcu_print_task_stall_begin(struct rcu_node *rnp)
+{
+}
+
+static void rcu_print_task_stall_end(void)
+{
+}
+
+#endif /* #else #ifdef CONFIG_RCU_CPU_STALL_INFO */
+
+/*
+ * Scan the current list of tasks blocked within RCU read-side critical
+ * sections, printing out the tid of each.
+ */
+static int rcu_print_task_stall(struct rcu_node *rnp)
+{
+	struct task_struct *t;
+	int ndetected = 0;
+
+	if (!rcu_preempt_blocked_readers_cgp(rnp))
+		return 0;
+	rcu_print_task_stall_begin(rnp);
+	t = list_entry(rnp->gp_tasks,
+		       struct task_struct, rcu_node_entry);
+	list_for_each_entry_continue(t, &rnp->blkd_tasks, rcu_node_entry) {
+		pr_cont(" P%d", t->pid);
+		ndetected++;
+	}
+	rcu_print_task_stall_end();
+	return ndetected;
+}
+
+/*
+ * Check that the list of blocked tasks for the newly completed grace
+ * period is in fact empty.  It is a serious bug to complete a grace
+ * period that still has RCU readers blocked!  This function must be
+ * invoked -before- updating this rnp's ->gpnum, and the rnp's ->lock
+ * must be held by the caller.
+ *
+ * Also, if there are blocked tasks on the list, they automatically
+ * block the newly created grace period, so set up ->gp_tasks accordingly.
+ */
+static void rcu_preempt_check_blocked_tasks(struct rcu_node *rnp)
+{
+	WARN_ON_ONCE(rcu_preempt_blocked_readers_cgp(rnp));
+	if (!list_empty(&rnp->blkd_tasks))
+		rnp->gp_tasks = rnp->blkd_tasks.next;
+	WARN_ON_ONCE(rnp->qsmask);
+}
+
+#ifdef CONFIG_HOTPLUG_CPU
+
+/*
+ * Handle tasklist migration for case in which all CPUs covered by the
+ * specified rcu_node have gone offline.  Move them up to the root
+ * rcu_node.  The reason for not just moving them to the immediate
+ * parent is to remove the need for rcu_read_unlock_special() to
+ * make more than two attempts to acquire the target rcu_node's lock.
+ * Returns true if there were tasks blocking the current RCU grace
+ * period.
+ *
+ * Returns 1 if there was previously a task blocking the current grace
+ * period on the specified rcu_node structure.
+ *
+ * The caller must hold rnp->lock with irqs disabled.
+ */
+static int rcu_preempt_offline_tasks(struct rcu_state *rsp,
+				     struct rcu_node *rnp,
+				     struct rcu_data *rdp)
+{
+	struct list_head *lp;
+	struct list_head *lp_root;
+	int retval = 0;
+	struct rcu_node *rnp_root = rcu_get_root(rsp);
+	struct task_struct *t;
+
+	if (rnp == rnp_root) {
+		WARN_ONCE(1, "Last CPU thought to be offlined?");
+		return 0;  /* Shouldn't happen: at least one CPU online. */
+	}
+
+	/* If we are on an internal node, complain bitterly. */
+	WARN_ON_ONCE(rnp != rdp->mynode);
+
+	/*
+	 * Move tasks up to root rcu_node.  Don't try to get fancy for
+	 * this corner-case operation -- just put this node's tasks
+	 * at the head of the root node's list, and update the root node's
+	 * ->gp_tasks and ->exp_tasks pointers to those of this node's,
+	 * if non-NULL.  This might result in waiting for more tasks than
+	 * absolutely necessary, but this is a good performance/complexity
+	 * tradeoff.
+	 */
+	if (rcu_preempt_blocked_readers_cgp(rnp) && rnp->qsmask == 0)
+		retval |= RCU_OFL_TASKS_NORM_GP;
+	if (rcu_preempted_readers_exp(rnp))
+		retval |= RCU_OFL_TASKS_EXP_GP;
+	lp = &rnp->blkd_tasks;
+	lp_root = &rnp_root->blkd_tasks;
+	while (!list_empty(lp)) {
+		t = list_entry(lp->next, typeof(*t), rcu_node_entry);
+		raw_spin_lock(&rnp_root->lock); /* irqs already disabled */
+		list_del(&t->rcu_node_entry);
+		t->rcu_blocked_node = rnp_root;
+		list_add(&t->rcu_node_entry, lp_root);
+		if (&t->rcu_node_entry == rnp->gp_tasks)
+			rnp_root->gp_tasks = rnp->gp_tasks;
+		if (&t->rcu_node_entry == rnp->exp_tasks)
+			rnp_root->exp_tasks = rnp->exp_tasks;
+#ifdef CONFIG_RCU_BOOST
+		if (&t->rcu_node_entry == rnp->boost_tasks)
+			rnp_root->boost_tasks = rnp->boost_tasks;
+#endif /* #ifdef CONFIG_RCU_BOOST */
+		raw_spin_unlock(&rnp_root->lock); /* irqs still disabled */
+	}
+
+	rnp->gp_tasks = NULL;
+	rnp->exp_tasks = NULL;
+#ifdef CONFIG_RCU_BOOST
+	rnp->boost_tasks = NULL;
+	/*
+	 * In case root is being boosted and leaf was not.  Make sure
+	 * that we boost the tasks blocking the current grace period
+	 * in this case.
+	 */
+	raw_spin_lock(&rnp_root->lock); /* irqs already disabled */
+	if (rnp_root->boost_tasks != NULL &&
+	    rnp_root->boost_tasks != rnp_root->gp_tasks &&
+	    rnp_root->boost_tasks != rnp_root->exp_tasks)
+		rnp_root->boost_tasks = rnp_root->gp_tasks;
+	raw_spin_unlock(&rnp_root->lock); /* irqs still disabled */
+#endif /* #ifdef CONFIG_RCU_BOOST */
+
+	return retval;
+}
+
+#endif /* #ifdef CONFIG_HOTPLUG_CPU */
+
+/*
+ * Check for a quiescent state from the current CPU.  When a task blocks,
+ * the task is recorded in the corresponding CPU's rcu_node structure,
+ * which is checked elsewhere.
+ *
+ * Caller must disable hard irqs.
+ */
+static void rcu_preempt_check_callbacks(int cpu)
+{
+	struct task_struct *t = current;
+
+	if (t->rcu_read_lock_nesting == 0) {
+		rcu_preempt_qs(cpu);
+		return;
+	}
+	if (t->rcu_read_lock_nesting > 0 &&
+	    per_cpu(rcu_preempt_data, cpu).qs_pending)
+		t->rcu_read_unlock_special |= RCU_READ_UNLOCK_NEED_QS;
+}
+
+#ifdef CONFIG_RCU_BOOST
+
+static void rcu_preempt_do_callbacks(void)
+{
+	rcu_do_batch(&rcu_preempt_state, this_cpu_ptr(&rcu_preempt_data));
+}
+
+#endif /* #ifdef CONFIG_RCU_BOOST */
+
+/*
+ * Queue a preemptible-RCU callback for invocation after a grace period.
+ */
+void call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu))
+{
+	__call_rcu(head, func, &rcu_preempt_state, -1, 0);
+}
+EXPORT_SYMBOL_GPL(call_rcu);
+
+/*
+ * Queue an RCU callback for lazy invocation after a grace period.
+ * This will likely be later named something like "call_rcu_lazy()",
+ * but this change will require some way of tagging the lazy RCU
+ * callbacks in the list of pending callbacks.  Until then, this
+ * function may only be called from __kfree_rcu().
+ */
+void kfree_call_rcu(struct rcu_head *head,
+		    void (*func)(struct rcu_head *rcu))
+{
+	__call_rcu(head, func, &rcu_preempt_state, -1, 1);
+}
+EXPORT_SYMBOL_GPL(kfree_call_rcu);
+
+/**
+ * synchronize_rcu - wait until a grace period has elapsed.
+ *
+ * Control will return to the caller some time after a full grace
+ * period has elapsed, in other words after all currently executing RCU
+ * read-side critical sections have completed.  Note, however, that
+ * upon return from synchronize_rcu(), the caller might well be executing
+ * concurrently with new RCU read-side critical sections that began while
+ * synchronize_rcu() was waiting.  RCU read-side critical sections are
+ * delimited by rcu_read_lock() and rcu_read_unlock(), and may be nested.
+ *
+ * See the description of synchronize_sched() for more detailed information
+ * on memory ordering guarantees.
+ */
+void synchronize_rcu(void)
+{
+	rcu_lockdep_assert(!lock_is_held(&rcu_bh_lock_map) &&
+			   !lock_is_held(&rcu_lock_map) &&
+			   !lock_is_held(&rcu_sched_lock_map),
+			   "Illegal synchronize_rcu() in RCU read-side critical section");
+	if (!rcu_scheduler_active)
+		return;
+	if (rcu_expedited)
+		synchronize_rcu_expedited();
+	else
+		wait_rcu_gp(call_rcu);
+}
+EXPORT_SYMBOL_GPL(synchronize_rcu);
+
+static DECLARE_WAIT_QUEUE_HEAD(sync_rcu_preempt_exp_wq);
+static unsigned long sync_rcu_preempt_exp_count;
+static DEFINE_MUTEX(sync_rcu_preempt_exp_mutex);
+
+/*
+ * Return non-zero if there are any tasks in RCU read-side critical
+ * sections blocking the current preemptible-RCU expedited grace period.
+ * If there is no preemptible-RCU expedited grace period currently in
+ * progress, returns zero unconditionally.
+ */
+static int rcu_preempted_readers_exp(struct rcu_node *rnp)
+{
+	return rnp->exp_tasks != NULL;
+}
+
+/*
+ * return non-zero if there is no RCU expedited grace period in progress
+ * for the specified rcu_node structure, in other words, if all CPUs and
+ * tasks covered by the specified rcu_node structure have done their bit
+ * for the current expedited grace period.  Works only for preemptible
+ * RCU -- other RCU implementation use other means.
+ *
+ * Caller must hold sync_rcu_preempt_exp_mutex.
+ */
+static int sync_rcu_preempt_exp_done(struct rcu_node *rnp)
+{
+	return !rcu_preempted_readers_exp(rnp) &&
+	       ACCESS_ONCE(rnp->expmask) == 0;
+}
+
+/*
+ * Report the exit from RCU read-side critical section for the last task
+ * that queued itself during or before the current expedited preemptible-RCU
+ * grace period.  This event is reported either to the rcu_node structure on
+ * which the task was queued or to one of that rcu_node structure's ancestors,
+ * recursively up the tree.  (Calm down, calm down, we do the recursion
+ * iteratively!)
+ *
+ * Most callers will set the "wake" flag, but the task initiating the
+ * expedited grace period need not wake itself.
+ *
+ * Caller must hold sync_rcu_preempt_exp_mutex.
+ */
+static void rcu_report_exp_rnp(struct rcu_state *rsp, struct rcu_node *rnp,
+			       bool wake)
+{
+	unsigned long flags;
+	unsigned long mask;
+
+	raw_spin_lock_irqsave(&rnp->lock, flags);
+	for (;;) {
+		if (!sync_rcu_preempt_exp_done(rnp)) {
+			raw_spin_unlock_irqrestore(&rnp->lock, flags);
+			break;
+		}
+		if (rnp->parent == NULL) {
+			raw_spin_unlock_irqrestore(&rnp->lock, flags);
+			if (wake)
+				wake_up(&sync_rcu_preempt_exp_wq);
+			break;
+		}
+		mask = rnp->grpmask;
+		raw_spin_unlock(&rnp->lock); /* irqs remain disabled */
+		rnp = rnp->parent;
+		raw_spin_lock(&rnp->lock); /* irqs already disabled */
+		rnp->expmask &= ~mask;
+	}
+}
+
+/*
+ * Snapshot the tasks blocking the newly started preemptible-RCU expedited
+ * grace period for the specified rcu_node structure.  If there are no such
+ * tasks, report it up the rcu_node hierarchy.
+ *
+ * Caller must hold sync_rcu_preempt_exp_mutex and must exclude
+ * CPU hotplug operations.
+ */
+static void
+sync_rcu_preempt_exp_init(struct rcu_state *rsp, struct rcu_node *rnp)
+{
+	unsigned long flags;
+	int must_wait = 0;
+
+	raw_spin_lock_irqsave(&rnp->lock, flags);
+	if (list_empty(&rnp->blkd_tasks)) {
+		raw_spin_unlock_irqrestore(&rnp->lock, flags);
+	} else {
+		rnp->exp_tasks = rnp->blkd_tasks.next;
+		rcu_initiate_boost(rnp, flags);  /* releases rnp->lock */
+		must_wait = 1;
+	}
+	if (!must_wait)
+		rcu_report_exp_rnp(rsp, rnp, false); /* Don't wake self. */
+}
+
+/**
+ * synchronize_rcu_expedited - Brute-force RCU grace period
+ *
+ * Wait for an RCU-preempt grace period, but expedite it.  The basic
+ * idea is to invoke synchronize_sched_expedited() to push all the tasks to
+ * the ->blkd_tasks lists and wait for this list to drain.  This consumes
+ * significant time on all CPUs and is unfriendly to real-time workloads,
+ * so is thus not recommended for any sort of common-case code.
+ * In fact, if you are using synchronize_rcu_expedited() in a loop,
+ * please restructure your code to batch your updates, and then Use a
+ * single synchronize_rcu() instead.
+ *
+ * Note that it is illegal to call this function while holding any lock
+ * that is acquired by a CPU-hotplug notifier.  And yes, it is also illegal
+ * to call this function from a CPU-hotplug notifier.  Failing to observe
+ * these restriction will result in deadlock.
+ */
+void synchronize_rcu_expedited(void)
+{
+	unsigned long flags;
+	struct rcu_node *rnp;
+	struct rcu_state *rsp = &rcu_preempt_state;
+	unsigned long snap;
+	int trycount = 0;
+
+	smp_mb(); /* Caller's modifications seen first by other CPUs. */
+	snap = ACCESS_ONCE(sync_rcu_preempt_exp_count) + 1;
+	smp_mb(); /* Above access cannot bleed into critical section. */
+
+	/*
+	 * Block CPU-hotplug operations.  This means that any CPU-hotplug
+	 * operation that finds an rcu_node structure with tasks in the
+	 * process of being boosted will know that all tasks blocking
+	 * this expedited grace period will already be in the process of
+	 * being boosted.  This simplifies the process of moving tasks
+	 * from leaf to root rcu_node structures.
+	 */
+	get_online_cpus();
+
+	/*
+	 * Acquire lock, falling back to synchronize_rcu() if too many
+	 * lock-acquisition failures.  Of course, if someone does the
+	 * expedited grace period for us, just leave.
+	 */
+	while (!mutex_trylock(&sync_rcu_preempt_exp_mutex)) {
+		if (ULONG_CMP_LT(snap,
+		    ACCESS_ONCE(sync_rcu_preempt_exp_count))) {
+			put_online_cpus();
+			goto mb_ret; /* Others did our work for us. */
+		}
+		if (trycount++ < 10) {
+			udelay(trycount * num_online_cpus());
+		} else {
+			put_online_cpus();
+			wait_rcu_gp(call_rcu);
+			return;
+		}
+	}
+	if (ULONG_CMP_LT(snap, ACCESS_ONCE(sync_rcu_preempt_exp_count))) {
+		put_online_cpus();
+		goto unlock_mb_ret; /* Others did our work for us. */
+	}
+
+	/* force all RCU readers onto ->blkd_tasks lists. */
+	synchronize_sched_expedited();
+
+	/* Initialize ->expmask for all non-leaf rcu_node structures. */
+	rcu_for_each_nonleaf_node_breadth_first(rsp, rnp) {
+		raw_spin_lock_irqsave(&rnp->lock, flags);
+		rnp->expmask = rnp->qsmaskinit;
+		raw_spin_unlock_irqrestore(&rnp->lock, flags);
+	}
+
+	/* Snapshot current state of ->blkd_tasks lists. */
+	rcu_for_each_leaf_node(rsp, rnp)
+		sync_rcu_preempt_exp_init(rsp, rnp);
+	if (NUM_RCU_NODES > 1)
+		sync_rcu_preempt_exp_init(rsp, rcu_get_root(rsp));
+
+	put_online_cpus();
+
+	/* Wait for snapshotted ->blkd_tasks lists to drain. */
+	rnp = rcu_get_root(rsp);
+	wait_event(sync_rcu_preempt_exp_wq,
+		   sync_rcu_preempt_exp_done(rnp));
+
+	/* Clean up and exit. */
+	smp_mb(); /* ensure expedited GP seen before counter increment. */
+	ACCESS_ONCE(sync_rcu_preempt_exp_count)++;
+unlock_mb_ret:
+	mutex_unlock(&sync_rcu_preempt_exp_mutex);
+mb_ret:
+	smp_mb(); /* ensure subsequent action seen after grace period. */
+}
+EXPORT_SYMBOL_GPL(synchronize_rcu_expedited);
+
+/**
+ * rcu_barrier - Wait until all in-flight call_rcu() callbacks complete.
+ *
+ * Note that this primitive does not necessarily wait for an RCU grace period
+ * to complete.  For example, if there are no RCU callbacks queued anywhere
+ * in the system, then rcu_barrier() is within its rights to return
+ * immediately, without waiting for anything, much less an RCU grace period.
+ */
+void rcu_barrier(void)
+{
+	_rcu_barrier(&rcu_preempt_state);
+}
+EXPORT_SYMBOL_GPL(rcu_barrier);
+
+/*
+ * Initialize preemptible RCU's state structures.
+ */
+static void __init __rcu_init_preempt(void)
+{
+	rcu_init_one(&rcu_preempt_state, &rcu_preempt_data);
+}
+
+/*
+ * Check for a task exiting while in a preemptible-RCU read-side
+ * critical section, clean up if so.  No need to issue warnings,
+ * as debug_check_no_locks_held() already does this if lockdep
+ * is enabled.
+ */
+void exit_rcu(void)
+{
+	struct task_struct *t = current;
+
+	if (likely(list_empty(&current->rcu_node_entry)))
+		return;
+	t->rcu_read_lock_nesting = 1;
+	barrier();
+	t->rcu_read_unlock_special = RCU_READ_UNLOCK_BLOCKED;
+	__rcu_read_unlock();
+}
+
+#else /* #ifdef CONFIG_TREE_PREEMPT_RCU */
+
+static struct rcu_state *rcu_state = &rcu_sched_state;
+
+/*
+ * Tell them what RCU they are running.
+ */
+static void __init rcu_bootup_announce(void)
+{
+	pr_info("Hierarchical RCU implementation.\n");
+	rcu_bootup_announce_oddness();
+}
+
+/*
+ * Return the number of RCU batches processed thus far for debug & stats.
+ */
+long rcu_batches_completed(void)
+{
+	return rcu_batches_completed_sched();
+}
+EXPORT_SYMBOL_GPL(rcu_batches_completed);
+
+/*
+ * Force a quiescent state for RCU, which, because there is no preemptible
+ * RCU, becomes the same as rcu-sched.
+ */
+void rcu_force_quiescent_state(void)
+{
+	rcu_sched_force_quiescent_state();
+}
+EXPORT_SYMBOL_GPL(rcu_force_quiescent_state);
+
+/*
+ * Because preemptible RCU does not exist, we never have to check for
+ * CPUs being in quiescent states.
+ */
+static void rcu_preempt_note_context_switch(int cpu)
+{
+}
+
+/*
+ * Because preemptible RCU does not exist, there are never any preempted
+ * RCU readers.
+ */
+static int rcu_preempt_blocked_readers_cgp(struct rcu_node *rnp)
+{
+	return 0;
+}
+
+#ifdef CONFIG_HOTPLUG_CPU
+
+/* Because preemptible RCU does not exist, no quieting of tasks. */
+static void rcu_report_unblock_qs_rnp(struct rcu_node *rnp, unsigned long flags)
+{
+	raw_spin_unlock_irqrestore(&rnp->lock, flags);
+}
+
+#endif /* #ifdef CONFIG_HOTPLUG_CPU */
+
+/*
+ * Because preemptible RCU does not exist, we never have to check for
+ * tasks blocked within RCU read-side critical sections.
+ */
+static void rcu_print_detail_task_stall(struct rcu_state *rsp)
+{
+}
+
+/*
+ * Because preemptible RCU does not exist, we never have to check for
+ * tasks blocked within RCU read-side critical sections.
+ */
+static int rcu_print_task_stall(struct rcu_node *rnp)
+{
+	return 0;
+}
+
+/*
+ * Because there is no preemptible RCU, there can be no readers blocked,
+ * so there is no need to check for blocked tasks.  So check only for
+ * bogus qsmask values.
+ */
+static void rcu_preempt_check_blocked_tasks(struct rcu_node *rnp)
+{
+	WARN_ON_ONCE(rnp->qsmask);
+}
+
+#ifdef CONFIG_HOTPLUG_CPU
+
+/*
+ * Because preemptible RCU does not exist, it never needs to migrate
+ * tasks that were blocked within RCU read-side critical sections, and
+ * such non-existent tasks cannot possibly have been blocking the current
+ * grace period.
+ */
+static int rcu_preempt_offline_tasks(struct rcu_state *rsp,
+				     struct rcu_node *rnp,
+				     struct rcu_data *rdp)
+{
+	return 0;
+}
+
+#endif /* #ifdef CONFIG_HOTPLUG_CPU */
+
+/*
+ * Because preemptible RCU does not exist, it never has any callbacks
+ * to check.
+ */
+static void rcu_preempt_check_callbacks(int cpu)
+{
+}
+
+/*
+ * Queue an RCU callback for lazy invocation after a grace period.
+ * This will likely be later named something like "call_rcu_lazy()",
+ * but this change will require some way of tagging the lazy RCU
+ * callbacks in the list of pending callbacks.  Until then, this
+ * function may only be called from __kfree_rcu().
+ *
+ * Because there is no preemptible RCU, we use RCU-sched instead.
+ */
+void kfree_call_rcu(struct rcu_head *head,
+		    void (*func)(struct rcu_head *rcu))
+{
+	__call_rcu(head, func, &rcu_sched_state, -1, 1);
+}
+EXPORT_SYMBOL_GPL(kfree_call_rcu);
+
+/*
+ * Wait for an rcu-preempt grace period, but make it happen quickly.
+ * But because preemptible RCU does not exist, map to rcu-sched.
+ */
+void synchronize_rcu_expedited(void)
+{
+	synchronize_sched_expedited();
+}
+EXPORT_SYMBOL_GPL(synchronize_rcu_expedited);
+
+#ifdef CONFIG_HOTPLUG_CPU
+
+/*
+ * Because preemptible RCU does not exist, there is never any need to
+ * report on tasks preempted in RCU read-side critical sections during
+ * expedited RCU grace periods.
+ */
+static void rcu_report_exp_rnp(struct rcu_state *rsp, struct rcu_node *rnp,
+			       bool wake)
+{
+}
+
+#endif /* #ifdef CONFIG_HOTPLUG_CPU */
+
+/*
+ * Because preemptible RCU does not exist, rcu_barrier() is just
+ * another name for rcu_barrier_sched().
+ */
+void rcu_barrier(void)
+{
+	rcu_barrier_sched();
+}
+EXPORT_SYMBOL_GPL(rcu_barrier);
+
+/*
+ * Because preemptible RCU does not exist, it need not be initialized.
+ */
+static void __init __rcu_init_preempt(void)
+{
+}
+
+/*
+ * Because preemptible RCU does not exist, tasks cannot possibly exit
+ * while in preemptible RCU read-side critical sections.
+ */
+void exit_rcu(void)
+{
+}
+
+#endif /* #else #ifdef CONFIG_TREE_PREEMPT_RCU */
+
+#ifdef CONFIG_RCU_BOOST
+
+#include "../rtmutex_common.h"
+
+#ifdef CONFIG_RCU_TRACE
+
+static void rcu_initiate_boost_trace(struct rcu_node *rnp)
+{
+	if (list_empty(&rnp->blkd_tasks))
+		rnp->n_balk_blkd_tasks++;
+	else if (rnp->exp_tasks == NULL && rnp->gp_tasks == NULL)
+		rnp->n_balk_exp_gp_tasks++;
+	else if (rnp->gp_tasks != NULL && rnp->boost_tasks != NULL)
+		rnp->n_balk_boost_tasks++;
+	else if (rnp->gp_tasks != NULL && rnp->qsmask != 0)
+		rnp->n_balk_notblocked++;
+	else if (rnp->gp_tasks != NULL &&
+		 ULONG_CMP_LT(jiffies, rnp->boost_time))
+		rnp->n_balk_notyet++;
+	else
+		rnp->n_balk_nos++;
+}
+
+#else /* #ifdef CONFIG_RCU_TRACE */
+
+static void rcu_initiate_boost_trace(struct rcu_node *rnp)
+{
+}
+
+#endif /* #else #ifdef CONFIG_RCU_TRACE */
+
+static void rcu_wake_cond(struct task_struct *t, int status)
+{
+	/*
+	 * If the thread is yielding, only wake it when this
+	 * is invoked from idle
+	 */
+	if (status != RCU_KTHREAD_YIELDING || is_idle_task(current))
+		wake_up_process(t);
+}
+
+/*
+ * Carry out RCU priority boosting on the task indicated by ->exp_tasks
+ * or ->boost_tasks, advancing the pointer to the next task in the
+ * ->blkd_tasks list.
+ *
+ * Note that irqs must be enabled: boosting the task can block.
+ * Returns 1 if there are more tasks needing to be boosted.
+ */
+static int rcu_boost(struct rcu_node *rnp)
+{
+	unsigned long flags;
+	struct rt_mutex mtx;
+	struct task_struct *t;
+	struct list_head *tb;
+
+	if (rnp->exp_tasks == NULL && rnp->boost_tasks == NULL)
+		return 0;  /* Nothing left to boost. */
+
+	raw_spin_lock_irqsave(&rnp->lock, flags);
+
+	/*
+	 * Recheck under the lock: all tasks in need of boosting
+	 * might exit their RCU read-side critical sections on their own.
+	 */
+	if (rnp->exp_tasks == NULL && rnp->boost_tasks == NULL) {
+		raw_spin_unlock_irqrestore(&rnp->lock, flags);
+		return 0;
+	}
+
+	/*
+	 * Preferentially boost tasks blocking expedited grace periods.
+	 * This cannot starve the normal grace periods because a second
+	 * expedited grace period must boost all blocked tasks, including
+	 * those blocking the pre-existing normal grace period.
+	 */
+	if (rnp->exp_tasks != NULL) {
+		tb = rnp->exp_tasks;
+		rnp->n_exp_boosts++;
+	} else {
+		tb = rnp->boost_tasks;
+		rnp->n_normal_boosts++;
+	}
+	rnp->n_tasks_boosted++;
+
+	/*
+	 * We boost task t by manufacturing an rt_mutex that appears to
+	 * be held by task t.  We leave a pointer to that rt_mutex where
+	 * task t can find it, and task t will release the mutex when it
+	 * exits its outermost RCU read-side critical section.  Then
+	 * simply acquiring this artificial rt_mutex will boost task
+	 * t's priority.  (Thanks to tglx for suggesting this approach!)
+	 *
+	 * Note that task t must acquire rnp->lock to remove itself from
+	 * the ->blkd_tasks list, which it will do from exit() if from
+	 * nowhere else.  We therefore are guaranteed that task t will
+	 * stay around at least until we drop rnp->lock.  Note that
+	 * rnp->lock also resolves races between our priority boosting
+	 * and task t's exiting its outermost RCU read-side critical
+	 * section.
+	 */
+	t = container_of(tb, struct task_struct, rcu_node_entry);
+	rt_mutex_init_proxy_locked(&mtx, t);
+	t->rcu_boost_mutex = &mtx;
+	raw_spin_unlock_irqrestore(&rnp->lock, flags);
+	rt_mutex_lock(&mtx);  /* Side effect: boosts task t's priority. */
+	rt_mutex_unlock(&mtx);  /* Keep lockdep happy. */
+
+	return ACCESS_ONCE(rnp->exp_tasks) != NULL ||
+	       ACCESS_ONCE(rnp->boost_tasks) != NULL;
+}
+
+/*
+ * Priority-boosting kthread.  One per leaf rcu_node and one for the
+ * root rcu_node.
+ */
+static int rcu_boost_kthread(void *arg)
+{
+	struct rcu_node *rnp = (struct rcu_node *)arg;
+	int spincnt = 0;
+	int more2boost;
+
+	trace_rcu_utilization(TPS("Start boost kthread@init"));
+	for (;;) {
+		rnp->boost_kthread_status = RCU_KTHREAD_WAITING;
+		trace_rcu_utilization(TPS("End boost kthread@rcu_wait"));
+		rcu_wait(rnp->boost_tasks || rnp->exp_tasks);
+		trace_rcu_utilization(TPS("Start boost kthread@rcu_wait"));
+		rnp->boost_kthread_status = RCU_KTHREAD_RUNNING;
+		more2boost = rcu_boost(rnp);
+		if (more2boost)
+			spincnt++;
+		else
+			spincnt = 0;
+		if (spincnt > 10) {
+			rnp->boost_kthread_status = RCU_KTHREAD_YIELDING;
+			trace_rcu_utilization(TPS("End boost kthread@rcu_yield"));
+			schedule_timeout_interruptible(2);
+			trace_rcu_utilization(TPS("Start boost kthread@rcu_yield"));
+			spincnt = 0;
+		}
+	}
+	/* NOTREACHED */
+	trace_rcu_utilization(TPS("End boost kthread@notreached"));
+	return 0;
+}
+
+/*
+ * Check to see if it is time to start boosting RCU readers that are
+ * blocking the current grace period, and, if so, tell the per-rcu_node
+ * kthread to start boosting them.  If there is an expedited grace
+ * period in progress, it is always time to boost.
+ *
+ * The caller must hold rnp->lock, which this function releases.
+ * The ->boost_kthread_task is immortal, so we don't need to worry
+ * about it going away.
+ */
+static void rcu_initiate_boost(struct rcu_node *rnp, unsigned long flags)
+{
+	struct task_struct *t;
+
+	if (!rcu_preempt_blocked_readers_cgp(rnp) && rnp->exp_tasks == NULL) {
+		rnp->n_balk_exp_gp_tasks++;
+		raw_spin_unlock_irqrestore(&rnp->lock, flags);
+		return;
+	}
+	if (rnp->exp_tasks != NULL ||
+	    (rnp->gp_tasks != NULL &&
+	     rnp->boost_tasks == NULL &&
+	     rnp->qsmask == 0 &&
+	     ULONG_CMP_GE(jiffies, rnp->boost_time))) {
+		if (rnp->exp_tasks == NULL)
+			rnp->boost_tasks = rnp->gp_tasks;
+		raw_spin_unlock_irqrestore(&rnp->lock, flags);
+		t = rnp->boost_kthread_task;
+		if (t)
+			rcu_wake_cond(t, rnp->boost_kthread_status);
+	} else {
+		rcu_initiate_boost_trace(rnp);
+		raw_spin_unlock_irqrestore(&rnp->lock, flags);
+	}
+}
+
+/*
+ * Wake up the per-CPU kthread to invoke RCU callbacks.
+ */
+static void invoke_rcu_callbacks_kthread(void)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	__this_cpu_write(rcu_cpu_has_work, 1);
+	if (__this_cpu_read(rcu_cpu_kthread_task) != NULL &&
+	    current != __this_cpu_read(rcu_cpu_kthread_task)) {
+		rcu_wake_cond(__this_cpu_read(rcu_cpu_kthread_task),
+			      __this_cpu_read(rcu_cpu_kthread_status));
+	}
+	local_irq_restore(flags);
+}
+
+/*
+ * Is the current CPU running the RCU-callbacks kthread?
+ * Caller must have preemption disabled.
+ */
+static bool rcu_is_callbacks_kthread(void)
+{
+	return __this_cpu_read(rcu_cpu_kthread_task) == current;
+}
+
+#define RCU_BOOST_DELAY_JIFFIES DIV_ROUND_UP(CONFIG_RCU_BOOST_DELAY * HZ, 1000)
+
+/*
+ * Do priority-boost accounting for the start of a new grace period.
+ */
+static void rcu_preempt_boost_start_gp(struct rcu_node *rnp)
+{
+	rnp->boost_time = jiffies + RCU_BOOST_DELAY_JIFFIES;
+}
+
+/*
+ * Create an RCU-boost kthread for the specified node if one does not
+ * already exist.  We only create this kthread for preemptible RCU.
+ * Returns zero if all is well, a negated errno otherwise.
+ */
+static int rcu_spawn_one_boost_kthread(struct rcu_state *rsp,
+						 struct rcu_node *rnp)
+{
+	int rnp_index = rnp - &rsp->node[0];
+	unsigned long flags;
+	struct sched_param sp;
+	struct task_struct *t;
+
+	if (&rcu_preempt_state != rsp)
+		return 0;
+
+	if (!rcu_scheduler_fully_active || rnp->qsmaskinit == 0)
+		return 0;
+
+	rsp->boost = 1;
+	if (rnp->boost_kthread_task != NULL)
+		return 0;
+	t = kthread_create(rcu_boost_kthread, (void *)rnp,
+			   "rcub/%d", rnp_index);
+	if (IS_ERR(t))
+		return PTR_ERR(t);
+	raw_spin_lock_irqsave(&rnp->lock, flags);
+	rnp->boost_kthread_task = t;
+	raw_spin_unlock_irqrestore(&rnp->lock, flags);
+	sp.sched_priority = RCU_BOOST_PRIO;
+	sched_setscheduler_nocheck(t, SCHED_FIFO, &sp);
+	wake_up_process(t); /* get to TASK_INTERRUPTIBLE quickly. */
+	return 0;
+}
+
+static void rcu_kthread_do_work(void)
+{
+	rcu_do_batch(&rcu_sched_state, this_cpu_ptr(&rcu_sched_data));
+	rcu_do_batch(&rcu_bh_state, this_cpu_ptr(&rcu_bh_data));
+	rcu_preempt_do_callbacks();
+}
+
+static void rcu_cpu_kthread_setup(unsigned int cpu)
+{
+	struct sched_param sp;
+
+	sp.sched_priority = RCU_KTHREAD_PRIO;
+	sched_setscheduler_nocheck(current, SCHED_FIFO, &sp);
+}
+
+static void rcu_cpu_kthread_park(unsigned int cpu)
+{
+	per_cpu(rcu_cpu_kthread_status, cpu) = RCU_KTHREAD_OFFCPU;
+}
+
+static int rcu_cpu_kthread_should_run(unsigned int cpu)
+{
+	return __this_cpu_read(rcu_cpu_has_work);
+}
+
+/*
+ * Per-CPU kernel thread that invokes RCU callbacks.  This replaces the
+ * RCU softirq used in flavors and configurations of RCU that do not
+ * support RCU priority boosting.
+ */
+static void rcu_cpu_kthread(unsigned int cpu)
+{
+	unsigned int *statusp = this_cpu_ptr(&rcu_cpu_kthread_status);
+	char work, *workp = this_cpu_ptr(&rcu_cpu_has_work);
+	int spincnt;
+
+	for (spincnt = 0; spincnt < 10; spincnt++) {
+		trace_rcu_utilization(TPS("Start CPU kthread@rcu_wait"));
+		local_bh_disable();
+		*statusp = RCU_KTHREAD_RUNNING;
+		this_cpu_inc(rcu_cpu_kthread_loops);
+		local_irq_disable();
+		work = *workp;
+		*workp = 0;
+		local_irq_enable();
+		if (work)
+			rcu_kthread_do_work();
+		local_bh_enable();
+		if (*workp == 0) {
+			trace_rcu_utilization(TPS("End CPU kthread@rcu_wait"));
+			*statusp = RCU_KTHREAD_WAITING;
+			return;
+		}
+	}
+	*statusp = RCU_KTHREAD_YIELDING;
+	trace_rcu_utilization(TPS("Start CPU kthread@rcu_yield"));
+	schedule_timeout_interruptible(2);
+	trace_rcu_utilization(TPS("End CPU kthread@rcu_yield"));
+	*statusp = RCU_KTHREAD_WAITING;
+}
+
+/*
+ * Set the per-rcu_node kthread's affinity to cover all CPUs that are
+ * served by the rcu_node in question.  The CPU hotplug lock is still
+ * held, so the value of rnp->qsmaskinit will be stable.
+ *
+ * We don't include outgoingcpu in the affinity set, use -1 if there is
+ * no outgoing CPU.  If there are no CPUs left in the affinity set,
+ * this function allows the kthread to execute on any CPU.
+ */
+static void rcu_boost_kthread_setaffinity(struct rcu_node *rnp, int outgoingcpu)
+{
+	struct task_struct *t = rnp->boost_kthread_task;
+	unsigned long mask = rnp->qsmaskinit;
+	cpumask_var_t cm;
+	int cpu;
+
+	if (!t)
+		return;
+	if (!zalloc_cpumask_var(&cm, GFP_KERNEL))
+		return;
+	for (cpu = rnp->grplo; cpu <= rnp->grphi; cpu++, mask >>= 1)
+		if ((mask & 0x1) && cpu != outgoingcpu)
+			cpumask_set_cpu(cpu, cm);
+	if (cpumask_weight(cm) == 0) {
+		cpumask_setall(cm);
+		for (cpu = rnp->grplo; cpu <= rnp->grphi; cpu++)
+			cpumask_clear_cpu(cpu, cm);
+		WARN_ON_ONCE(cpumask_weight(cm) == 0);
+	}
+	set_cpus_allowed_ptr(t, cm);
+	free_cpumask_var(cm);
+}
+
+static struct smp_hotplug_thread rcu_cpu_thread_spec = {
+	.store			= &rcu_cpu_kthread_task,
+	.thread_should_run	= rcu_cpu_kthread_should_run,
+	.thread_fn		= rcu_cpu_kthread,
+	.thread_comm		= "rcuc/%u",
+	.setup			= rcu_cpu_kthread_setup,
+	.park			= rcu_cpu_kthread_park,
+};
+
+/*
+ * Spawn all kthreads -- called as soon as the scheduler is running.
+ */
+static int __init rcu_spawn_kthreads(void)
+{
+	struct rcu_node *rnp;
+	int cpu;
+
+	rcu_scheduler_fully_active = 1;
+	for_each_possible_cpu(cpu)
+		per_cpu(rcu_cpu_has_work, cpu) = 0;
+	BUG_ON(smpboot_register_percpu_thread(&rcu_cpu_thread_spec));
+	rnp = rcu_get_root(rcu_state);
+	(void)rcu_spawn_one_boost_kthread(rcu_state, rnp);
+	if (NUM_RCU_NODES > 1) {
+		rcu_for_each_leaf_node(rcu_state, rnp)
+			(void)rcu_spawn_one_boost_kthread(rcu_state, rnp);
+	}
+	return 0;
+}
+early_initcall(rcu_spawn_kthreads);
+
+static void rcu_prepare_kthreads(int cpu)
+{
+	struct rcu_data *rdp = per_cpu_ptr(rcu_state->rda, cpu);
+	struct rcu_node *rnp = rdp->mynode;
+
+	/* Fire up the incoming CPU's kthread and leaf rcu_node kthread. */
+	if (rcu_scheduler_fully_active)
+		(void)rcu_spawn_one_boost_kthread(rcu_state, rnp);
+}
+
+#else /* #ifdef CONFIG_RCU_BOOST */
+
+static void rcu_initiate_boost(struct rcu_node *rnp, unsigned long flags)
+{
+	raw_spin_unlock_irqrestore(&rnp->lock, flags);
+}
+
+static void invoke_rcu_callbacks_kthread(void)
+{
+	WARN_ON_ONCE(1);
+}
+
+static bool rcu_is_callbacks_kthread(void)
+{
+	return false;
+}
+
+static void rcu_preempt_boost_start_gp(struct rcu_node *rnp)
+{
+}
+
+static void rcu_boost_kthread_setaffinity(struct rcu_node *rnp, int outgoingcpu)
+{
+}
+
+static int __init rcu_scheduler_really_started(void)
+{
+	rcu_scheduler_fully_active = 1;
+	return 0;
+}
+early_initcall(rcu_scheduler_really_started);
+
+static void rcu_prepare_kthreads(int cpu)
+{
+}
+
+#endif /* #else #ifdef CONFIG_RCU_BOOST */
+
+#if !defined(CONFIG_RCU_FAST_NO_HZ)
+
+/*
+ * Check to see if any future RCU-related work will need to be done
+ * by the current CPU, even if none need be done immediately, returning
+ * 1 if so.  This function is part of the RCU implementation; it is -not-
+ * an exported member of the RCU API.
+ *
+ * Because we not have RCU_FAST_NO_HZ, just check whether this CPU needs
+ * any flavor of RCU.
+ */
+int rcu_needs_cpu(int cpu, unsigned long *delta_jiffies)
+{
+	*delta_jiffies = ULONG_MAX;
+	return rcu_cpu_has_callbacks(cpu, NULL);
+}
+
+/*
+ * Because we do not have RCU_FAST_NO_HZ, don't bother cleaning up
+ * after it.
+ */
+static void rcu_cleanup_after_idle(int cpu)
+{
+}
+
+/*
+ * Do the idle-entry grace-period work, which, because CONFIG_RCU_FAST_NO_HZ=n,
+ * is nothing.
+ */
+static void rcu_prepare_for_idle(int cpu)
+{
+}
+
+/*
+ * Don't bother keeping a running count of the number of RCU callbacks
+ * posted because CONFIG_RCU_FAST_NO_HZ=n.
+ */
+static void rcu_idle_count_callbacks_posted(void)
+{
+}
+
+#else /* #if !defined(CONFIG_RCU_FAST_NO_HZ) */
+
+/*
+ * This code is invoked when a CPU goes idle, at which point we want
+ * to have the CPU do everything required for RCU so that it can enter
+ * the energy-efficient dyntick-idle mode.  This is handled by a
+ * state machine implemented by rcu_prepare_for_idle() below.
+ *
+ * The following three proprocessor symbols control this state machine:
+ *
+ * RCU_IDLE_GP_DELAY gives the number of jiffies that a CPU is permitted
+ *	to sleep in dyntick-idle mode with RCU callbacks pending.  This
+ *	is sized to be roughly one RCU grace period.  Those energy-efficiency
+ *	benchmarkers who might otherwise be tempted to set this to a large
+ *	number, be warned: Setting RCU_IDLE_GP_DELAY too high can hang your
+ *	system.  And if you are -that- concerned about energy efficiency,
+ *	just power the system down and be done with it!
+ * RCU_IDLE_LAZY_GP_DELAY gives the number of jiffies that a CPU is
+ *	permitted to sleep in dyntick-idle mode with only lazy RCU
+ *	callbacks pending.  Setting this too high can OOM your system.
+ *
+ * The values below work well in practice.  If future workloads require
+ * adjustment, they can be converted into kernel config parameters, though
+ * making the state machine smarter might be a better option.
+ */
+#define RCU_IDLE_GP_DELAY 4		/* Roughly one grace period. */
+#define RCU_IDLE_LAZY_GP_DELAY (6 * HZ)	/* Roughly six seconds. */
+
+static int rcu_idle_gp_delay = RCU_IDLE_GP_DELAY;
+module_param(rcu_idle_gp_delay, int, 0644);
+static int rcu_idle_lazy_gp_delay = RCU_IDLE_LAZY_GP_DELAY;
+module_param(rcu_idle_lazy_gp_delay, int, 0644);
+
+extern int tick_nohz_enabled;
+
+/*
+ * Try to advance callbacks for all flavors of RCU on the current CPU, but
+ * only if it has been awhile since the last time we did so.  Afterwards,
+ * if there are any callbacks ready for immediate invocation, return true.
+ */
+static bool rcu_try_advance_all_cbs(void)
+{
+	bool cbs_ready = false;
+	struct rcu_data *rdp;
+	struct rcu_dynticks *rdtp = this_cpu_ptr(&rcu_dynticks);
+	struct rcu_node *rnp;
+	struct rcu_state *rsp;
+
+	/* Exit early if we advanced recently. */
+	if (jiffies == rdtp->last_advance_all)
+		return 0;
+	rdtp->last_advance_all = jiffies;
+
+	for_each_rcu_flavor(rsp) {
+		rdp = this_cpu_ptr(rsp->rda);
+		rnp = rdp->mynode;
+
+		/*
+		 * Don't bother checking unless a grace period has
+		 * completed since we last checked and there are
+		 * callbacks not yet ready to invoke.
+		 */
+		if (rdp->completed != rnp->completed &&
+		    rdp->nxttail[RCU_DONE_TAIL] != rdp->nxttail[RCU_NEXT_TAIL])
+			note_gp_changes(rsp, rdp);
+
+		if (cpu_has_callbacks_ready_to_invoke(rdp))
+			cbs_ready = true;
+	}
+	return cbs_ready;
+}
+
+/*
+ * Allow the CPU to enter dyntick-idle mode unless it has callbacks ready
+ * to invoke.  If the CPU has callbacks, try to advance them.  Tell the
+ * caller to set the timeout based on whether or not there are non-lazy
+ * callbacks.
+ *
+ * The caller must have disabled interrupts.
+ */
+int rcu_needs_cpu(int cpu, unsigned long *dj)
+{
+	struct rcu_dynticks *rdtp = &per_cpu(rcu_dynticks, cpu);
+
+	/* Snapshot to detect later posting of non-lazy callback. */
+	rdtp->nonlazy_posted_snap = rdtp->nonlazy_posted;
+
+	/* If no callbacks, RCU doesn't need the CPU. */
+	if (!rcu_cpu_has_callbacks(cpu, &rdtp->all_lazy)) {
+		*dj = ULONG_MAX;
+		return 0;
+	}
+
+	/* Attempt to advance callbacks. */
+	if (rcu_try_advance_all_cbs()) {
+		/* Some ready to invoke, so initiate later invocation. */
+		invoke_rcu_core();
+		return 1;
+	}
+	rdtp->last_accelerate = jiffies;
+
+	/* Request timer delay depending on laziness, and round. */
+	if (!rdtp->all_lazy) {
+		*dj = round_up(rcu_idle_gp_delay + jiffies,
+			       rcu_idle_gp_delay) - jiffies;
+	} else {
+		*dj = round_jiffies(rcu_idle_lazy_gp_delay + jiffies) - jiffies;
+	}
+	return 0;
+}
+
+/*
+ * Prepare a CPU for idle from an RCU perspective.  The first major task
+ * is to sense whether nohz mode has been enabled or disabled via sysfs.
+ * The second major task is to check to see if a non-lazy callback has
+ * arrived at a CPU that previously had only lazy callbacks.  The third
+ * major task is to accelerate (that is, assign grace-period numbers to)
+ * any recently arrived callbacks.
+ *
+ * The caller must have disabled interrupts.
+ */
+static void rcu_prepare_for_idle(int cpu)
+{
+	struct rcu_data *rdp;
+	struct rcu_dynticks *rdtp = &per_cpu(rcu_dynticks, cpu);
+	struct rcu_node *rnp;
+	struct rcu_state *rsp;
+	int tne;
+
+	/* Handle nohz enablement switches conservatively. */
+	tne = ACCESS_ONCE(tick_nohz_enabled);
+	if (tne != rdtp->tick_nohz_enabled_snap) {
+		if (rcu_cpu_has_callbacks(cpu, NULL))
+			invoke_rcu_core(); /* force nohz to see update. */
+		rdtp->tick_nohz_enabled_snap = tne;
+		return;
+	}
+	if (!tne)
+		return;
+
+	/* If this is a no-CBs CPU, no callbacks, just return. */
+	if (rcu_is_nocb_cpu(cpu))
+		return;
+
+	/*
+	 * If a non-lazy callback arrived at a CPU having only lazy
+	 * callbacks, invoke RCU core for the side-effect of recalculating
+	 * idle duration on re-entry to idle.
+	 */
+	if (rdtp->all_lazy &&
+	    rdtp->nonlazy_posted != rdtp->nonlazy_posted_snap) {
+		rdtp->all_lazy = false;
+		rdtp->nonlazy_posted_snap = rdtp->nonlazy_posted;
+		invoke_rcu_core();
+		return;
+	}
+
+	/*
+	 * If we have not yet accelerated this jiffy, accelerate all
+	 * callbacks on this CPU.
+	 */
+	if (rdtp->last_accelerate == jiffies)
+		return;
+	rdtp->last_accelerate = jiffies;
+	for_each_rcu_flavor(rsp) {
+		rdp = per_cpu_ptr(rsp->rda, cpu);
+		if (!*rdp->nxttail[RCU_DONE_TAIL])
+			continue;
+		rnp = rdp->mynode;
+		raw_spin_lock(&rnp->lock); /* irqs already disabled. */
+		rcu_accelerate_cbs(rsp, rnp, rdp);
+		raw_spin_unlock(&rnp->lock); /* irqs remain disabled. */
+	}
+}
+
+/*
+ * Clean up for exit from idle.  Attempt to advance callbacks based on
+ * any grace periods that elapsed while the CPU was idle, and if any
+ * callbacks are now ready to invoke, initiate invocation.
+ */
+static void rcu_cleanup_after_idle(int cpu)
+{
+
+	if (rcu_is_nocb_cpu(cpu))
+		return;
+	if (rcu_try_advance_all_cbs())
+		invoke_rcu_core();
+}
+
+/*
+ * Keep a running count of the number of non-lazy callbacks posted
+ * on this CPU.  This running counter (which is never decremented) allows
+ * rcu_prepare_for_idle() to detect when something out of the idle loop
+ * posts a callback, even if an equal number of callbacks are invoked.
+ * Of course, callbacks should only be posted from within a trace event
+ * designed to be called from idle or from within RCU_NONIDLE().
+ */
+static void rcu_idle_count_callbacks_posted(void)
+{
+	__this_cpu_add(rcu_dynticks.nonlazy_posted, 1);
+}
+
+/*
+ * Data for flushing lazy RCU callbacks at OOM time.
+ */
+static atomic_t oom_callback_count;
+static DECLARE_WAIT_QUEUE_HEAD(oom_callback_wq);
+
+/*
+ * RCU OOM callback -- decrement the outstanding count and deliver the
+ * wake-up if we are the last one.
+ */
+static void rcu_oom_callback(struct rcu_head *rhp)
+{
+	if (atomic_dec_and_test(&oom_callback_count))
+		wake_up(&oom_callback_wq);
+}
+
+/*
+ * Post an rcu_oom_notify callback on the current CPU if it has at
+ * least one lazy callback.  This will unnecessarily post callbacks
+ * to CPUs that already have a non-lazy callback at the end of their
+ * callback list, but this is an infrequent operation, so accept some
+ * extra overhead to keep things simple.
+ */
+static void rcu_oom_notify_cpu(void *unused)
+{
+	struct rcu_state *rsp;
+	struct rcu_data *rdp;
+
+	for_each_rcu_flavor(rsp) {
+		rdp = __this_cpu_ptr(rsp->rda);
+		if (rdp->qlen_lazy != 0) {
+			atomic_inc(&oom_callback_count);
+			rsp->call(&rdp->oom_head, rcu_oom_callback);
+		}
+	}
+}
+
+/*
+ * If low on memory, ensure that each CPU has a non-lazy callback.
+ * This will wake up CPUs that have only lazy callbacks, in turn
+ * ensuring that they free up the corresponding memory in a timely manner.
+ * Because an uncertain amount of memory will be freed in some uncertain
+ * timeframe, we do not claim to have freed anything.
+ */
+static int rcu_oom_notify(struct notifier_block *self,
+			  unsigned long notused, void *nfreed)
+{
+	int cpu;
+
+	/* Wait for callbacks from earlier instance to complete. */
+	wait_event(oom_callback_wq, atomic_read(&oom_callback_count) == 0);
+
+	/*
+	 * Prevent premature wakeup: ensure that all increments happen
+	 * before there is a chance of the counter reaching zero.
+	 */
+	atomic_set(&oom_callback_count, 1);
+
+	get_online_cpus();
+	for_each_online_cpu(cpu) {
+		smp_call_function_single(cpu, rcu_oom_notify_cpu, NULL, 1);
+		cond_resched();
+	}
+	put_online_cpus();
+
+	/* Unconditionally decrement: no need to wake ourselves up. */
+	atomic_dec(&oom_callback_count);
+
+	return NOTIFY_OK;
+}
+
+static struct notifier_block rcu_oom_nb = {
+	.notifier_call = rcu_oom_notify
+};
+
+static int __init rcu_register_oom_notifier(void)
+{
+	register_oom_notifier(&rcu_oom_nb);
+	return 0;
+}
+early_initcall(rcu_register_oom_notifier);
+
+#endif /* #else #if !defined(CONFIG_RCU_FAST_NO_HZ) */
+
+#ifdef CONFIG_RCU_CPU_STALL_INFO
+
+#ifdef CONFIG_RCU_FAST_NO_HZ
+
+static void print_cpu_stall_fast_no_hz(char *cp, int cpu)
+{
+	struct rcu_dynticks *rdtp = &per_cpu(rcu_dynticks, cpu);
+	unsigned long nlpd = rdtp->nonlazy_posted - rdtp->nonlazy_posted_snap;
+
+	sprintf(cp, "last_accelerate: %04lx/%04lx, nonlazy_posted: %ld, %c%c",
+		rdtp->last_accelerate & 0xffff, jiffies & 0xffff,
+		ulong2long(nlpd),
+		rdtp->all_lazy ? 'L' : '.',
+		rdtp->tick_nohz_enabled_snap ? '.' : 'D');
+}
+
+#else /* #ifdef CONFIG_RCU_FAST_NO_HZ */
+
+static void print_cpu_stall_fast_no_hz(char *cp, int cpu)
+{
+	*cp = '\0';
+}
+
+#endif /* #else #ifdef CONFIG_RCU_FAST_NO_HZ */
+
+/* Initiate the stall-info list. */
+static void print_cpu_stall_info_begin(void)
+{
+	pr_cont("\n");
+}
+
+/*
+ * Print out diagnostic information for the specified stalled CPU.
+ *
+ * If the specified CPU is aware of the current RCU grace period
+ * (flavor specified by rsp), then print the number of scheduling
+ * clock interrupts the CPU has taken during the time that it has
+ * been aware.  Otherwise, print the number of RCU grace periods
+ * that this CPU is ignorant of, for example, "1" if the CPU was
+ * aware of the previous grace period.
+ *
+ * Also print out idle and (if CONFIG_RCU_FAST_NO_HZ) idle-entry info.
+ */
+static void print_cpu_stall_info(struct rcu_state *rsp, int cpu)
+{
+	char fast_no_hz[72];
+	struct rcu_data *rdp = per_cpu_ptr(rsp->rda, cpu);
+	struct rcu_dynticks *rdtp = rdp->dynticks;
+	char *ticks_title;
+	unsigned long ticks_value;
+
+	if (rsp->gpnum == rdp->gpnum) {
+		ticks_title = "ticks this GP";
+		ticks_value = rdp->ticks_this_gp;
+	} else {
+		ticks_title = "GPs behind";
+		ticks_value = rsp->gpnum - rdp->gpnum;
+	}
+	print_cpu_stall_fast_no_hz(fast_no_hz, cpu);
+	pr_err("\t%d: (%lu %s) idle=%03x/%llx/%d softirq=%u/%u %s\n",
+	       cpu, ticks_value, ticks_title,
+	       atomic_read(&rdtp->dynticks) & 0xfff,
+	       rdtp->dynticks_nesting, rdtp->dynticks_nmi_nesting,
+	       rdp->softirq_snap, kstat_softirqs_cpu(RCU_SOFTIRQ, cpu),
+	       fast_no_hz);
+}
+
+/* Terminate the stall-info list. */
+static void print_cpu_stall_info_end(void)
+{
+	pr_err("\t");
+}
+
+/* Zero ->ticks_this_gp for all flavors of RCU. */
+static void zero_cpu_stall_ticks(struct rcu_data *rdp)
+{
+	rdp->ticks_this_gp = 0;
+	rdp->softirq_snap = kstat_softirqs_cpu(RCU_SOFTIRQ, smp_processor_id());
+}
+
+/* Increment ->ticks_this_gp for all flavors of RCU. */
+static void increment_cpu_stall_ticks(void)
+{
+	struct rcu_state *rsp;
+
+	for_each_rcu_flavor(rsp)
+		__this_cpu_ptr(rsp->rda)->ticks_this_gp++;
+}
+
+#else /* #ifdef CONFIG_RCU_CPU_STALL_INFO */
+
+static void print_cpu_stall_info_begin(void)
+{
+	pr_cont(" {");
+}
+
+static void print_cpu_stall_info(struct rcu_state *rsp, int cpu)
+{
+	pr_cont(" %d", cpu);
+}
+
+static void print_cpu_stall_info_end(void)
+{
+	pr_cont("} ");
+}
+
+static void zero_cpu_stall_ticks(struct rcu_data *rdp)
+{
+}
+
+static void increment_cpu_stall_ticks(void)
+{
+}
+
+#endif /* #else #ifdef CONFIG_RCU_CPU_STALL_INFO */
+
+#ifdef CONFIG_RCU_NOCB_CPU
+
+/*
+ * Offload callback processing from the boot-time-specified set of CPUs
+ * specified by rcu_nocb_mask.  For each CPU in the set, there is a
+ * kthread created that pulls the callbacks from the corresponding CPU,
+ * waits for a grace period to elapse, and invokes the callbacks.
+ * The no-CBs CPUs do a wake_up() on their kthread when they insert
+ * a callback into any empty list, unless the rcu_nocb_poll boot parameter
+ * has been specified, in which case each kthread actively polls its
+ * CPU.  (Which isn't so great for energy efficiency, but which does
+ * reduce RCU's overhead on that CPU.)
+ *
+ * This is intended to be used in conjunction with Frederic Weisbecker's
+ * adaptive-idle work, which would seriously reduce OS jitter on CPUs
+ * running CPU-bound user-mode computations.
+ *
+ * Offloading of callback processing could also in theory be used as
+ * an energy-efficiency measure because CPUs with no RCU callbacks
+ * queued are more aggressive about entering dyntick-idle mode.
+ */
+
+
+/* Parse the boot-time rcu_nocb_mask CPU list from the kernel parameters. */
+static int __init rcu_nocb_setup(char *str)
+{
+	alloc_bootmem_cpumask_var(&rcu_nocb_mask);
+	have_rcu_nocb_mask = true;
+	cpulist_parse(str, rcu_nocb_mask);
+	return 1;
+}
+__setup("rcu_nocbs=", rcu_nocb_setup);
+
+static int __init parse_rcu_nocb_poll(char *arg)
+{
+	rcu_nocb_poll = 1;
+	return 0;
+}
+early_param("rcu_nocb_poll", parse_rcu_nocb_poll);
+
+/*
+ * Do any no-CBs CPUs need another grace period?
+ *
+ * Interrupts must be disabled.  If the caller does not hold the root
+ * rnp_node structure's ->lock, the results are advisory only.
+ */
+static int rcu_nocb_needs_gp(struct rcu_state *rsp)
+{
+	struct rcu_node *rnp = rcu_get_root(rsp);
+
+	return rnp->need_future_gp[(ACCESS_ONCE(rnp->completed) + 1) & 0x1];
+}
+
+/*
+ * Wake up any no-CBs CPUs' kthreads that were waiting on the just-ended
+ * grace period.
+ */
+static void rcu_nocb_gp_cleanup(struct rcu_state *rsp, struct rcu_node *rnp)
+{
+	wake_up_all(&rnp->nocb_gp_wq[rnp->completed & 0x1]);
+}
+
+/*
+ * Set the root rcu_node structure's ->need_future_gp field
+ * based on the sum of those of all rcu_node structures.  This does
+ * double-count the root rcu_node structure's requests, but this
+ * is necessary to handle the possibility of a rcu_nocb_kthread()
+ * having awakened during the time that the rcu_node structures
+ * were being updated for the end of the previous grace period.
+ */
+static void rcu_nocb_gp_set(struct rcu_node *rnp, int nrq)
+{
+	rnp->need_future_gp[(rnp->completed + 1) & 0x1] += nrq;
+}
+
+static void rcu_init_one_nocb(struct rcu_node *rnp)
+{
+	init_waitqueue_head(&rnp->nocb_gp_wq[0]);
+	init_waitqueue_head(&rnp->nocb_gp_wq[1]);
+}
+
+/* Is the specified CPU a no-CPUs CPU? */
+bool rcu_is_nocb_cpu(int cpu)
+{
+	if (have_rcu_nocb_mask)
+		return cpumask_test_cpu(cpu, rcu_nocb_mask);
+	return false;
+}
+
+/*
+ * Enqueue the specified string of rcu_head structures onto the specified
+ * CPU's no-CBs lists.  The CPU is specified by rdp, the head of the
+ * string by rhp, and the tail of the string by rhtp.  The non-lazy/lazy
+ * counts are supplied by rhcount and rhcount_lazy.
+ *
+ * If warranted, also wake up the kthread servicing this CPUs queues.
+ */
+static void __call_rcu_nocb_enqueue(struct rcu_data *rdp,
+				    struct rcu_head *rhp,
+				    struct rcu_head **rhtp,
+				    int rhcount, int rhcount_lazy)
+{
+	int len;
+	struct rcu_head **old_rhpp;
+	struct task_struct *t;
+
+	/* Enqueue the callback on the nocb list and update counts. */
+	old_rhpp = xchg(&rdp->nocb_tail, rhtp);
+	ACCESS_ONCE(*old_rhpp) = rhp;
+	atomic_long_add(rhcount, &rdp->nocb_q_count);
+	atomic_long_add(rhcount_lazy, &rdp->nocb_q_count_lazy);
+
+	/* If we are not being polled and there is a kthread, awaken it ... */
+	t = ACCESS_ONCE(rdp->nocb_kthread);
+	if (rcu_nocb_poll || !t) {
+		trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
+				    TPS("WakeNotPoll"));
+		return;
+	}
+	len = atomic_long_read(&rdp->nocb_q_count);
+	if (old_rhpp == &rdp->nocb_head) {
+		wake_up(&rdp->nocb_wq); /* ... only if queue was empty ... */
+		rdp->qlen_last_fqs_check = 0;
+		trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu, TPS("WakeEmpty"));
+	} else if (len > rdp->qlen_last_fqs_check + qhimark) {
+		wake_up_process(t); /* ... or if many callbacks queued. */
+		rdp->qlen_last_fqs_check = LONG_MAX / 2;
+		trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu, TPS("WakeOvf"));
+	} else {
+		trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu, TPS("WakeNot"));
+	}
+	return;
+}
+
+/*
+ * This is a helper for __call_rcu(), which invokes this when the normal
+ * callback queue is inoperable.  If this is not a no-CBs CPU, this
+ * function returns failure back to __call_rcu(), which can complain
+ * appropriately.
+ *
+ * Otherwise, this function queues the callback where the corresponding
+ * "rcuo" kthread can find it.
+ */
+static bool __call_rcu_nocb(struct rcu_data *rdp, struct rcu_head *rhp,
+			    bool lazy)
+{
+
+	if (!rcu_is_nocb_cpu(rdp->cpu))
+		return 0;
+	__call_rcu_nocb_enqueue(rdp, rhp, &rhp->next, 1, lazy);
+	if (__is_kfree_rcu_offset((unsigned long)rhp->func))
+		trace_rcu_kfree_callback(rdp->rsp->name, rhp,
+					 (unsigned long)rhp->func,
+					 -atomic_long_read(&rdp->nocb_q_count_lazy),
+					 -atomic_long_read(&rdp->nocb_q_count));
+	else
+		trace_rcu_callback(rdp->rsp->name, rhp,
+				   -atomic_long_read(&rdp->nocb_q_count_lazy),
+				   -atomic_long_read(&rdp->nocb_q_count));
+	return 1;
+}
+
+/*
+ * Adopt orphaned callbacks on a no-CBs CPU, or return 0 if this is
+ * not a no-CBs CPU.
+ */
+static bool __maybe_unused rcu_nocb_adopt_orphan_cbs(struct rcu_state *rsp,
+						     struct rcu_data *rdp)
+{
+	long ql = rsp->qlen;
+	long qll = rsp->qlen_lazy;
+
+	/* If this is not a no-CBs CPU, tell the caller to do it the old way. */
+	if (!rcu_is_nocb_cpu(smp_processor_id()))
+		return 0;
+	rsp->qlen = 0;
+	rsp->qlen_lazy = 0;
+
+	/* First, enqueue the donelist, if any.  This preserves CB ordering. */
+	if (rsp->orphan_donelist != NULL) {
+		__call_rcu_nocb_enqueue(rdp, rsp->orphan_donelist,
+					rsp->orphan_donetail, ql, qll);
+		ql = qll = 0;
+		rsp->orphan_donelist = NULL;
+		rsp->orphan_donetail = &rsp->orphan_donelist;
+	}
+	if (rsp->orphan_nxtlist != NULL) {
+		__call_rcu_nocb_enqueue(rdp, rsp->orphan_nxtlist,
+					rsp->orphan_nxttail, ql, qll);
+		ql = qll = 0;
+		rsp->orphan_nxtlist = NULL;
+		rsp->orphan_nxttail = &rsp->orphan_nxtlist;
+	}
+	return 1;
+}
+
+/*
+ * If necessary, kick off a new grace period, and either way wait
+ * for a subsequent grace period to complete.
+ */
+static void rcu_nocb_wait_gp(struct rcu_data *rdp)
+{
+	unsigned long c;
+	bool d;
+	unsigned long flags;
+	struct rcu_node *rnp = rdp->mynode;
+
+	raw_spin_lock_irqsave(&rnp->lock, flags);
+	c = rcu_start_future_gp(rnp, rdp);
+	raw_spin_unlock_irqrestore(&rnp->lock, flags);
+
+	/*
+	 * Wait for the grace period.  Do so interruptibly to avoid messing
+	 * up the load average.
+	 */
+	trace_rcu_future_gp(rnp, rdp, c, TPS("StartWait"));
+	for (;;) {
+		wait_event_interruptible(
+			rnp->nocb_gp_wq[c & 0x1],
+			(d = ULONG_CMP_GE(ACCESS_ONCE(rnp->completed), c)));
+		if (likely(d))
+			break;
+		flush_signals(current);
+		trace_rcu_future_gp(rnp, rdp, c, TPS("ResumeWait"));
+	}
+	trace_rcu_future_gp(rnp, rdp, c, TPS("EndWait"));
+	smp_mb(); /* Ensure that CB invocation happens after GP end. */
+}
+
+/*
+ * Per-rcu_data kthread, but only for no-CBs CPUs.  Each kthread invokes
+ * callbacks queued by the corresponding no-CBs CPU.
+ */
+static int rcu_nocb_kthread(void *arg)
+{
+	int c, cl;
+	bool firsttime = 1;
+	struct rcu_head *list;
+	struct rcu_head *next;
+	struct rcu_head **tail;
+	struct rcu_data *rdp = arg;
+
+	/* Each pass through this loop invokes one batch of callbacks */
+	for (;;) {
+		/* If not polling, wait for next batch of callbacks. */
+		if (!rcu_nocb_poll) {
+			trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
+					    TPS("Sleep"));
+			wait_event_interruptible(rdp->nocb_wq, rdp->nocb_head);
+		} else if (firsttime) {
+			firsttime = 0;
+			trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
+					    TPS("Poll"));
+		}
+		list = ACCESS_ONCE(rdp->nocb_head);
+		if (!list) {
+			if (!rcu_nocb_poll)
+				trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
+						    TPS("WokeEmpty"));
+			schedule_timeout_interruptible(1);
+			flush_signals(current);
+			continue;
+		}
+		firsttime = 1;
+		trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
+				    TPS("WokeNonEmpty"));
+
+		/*
+		 * Extract queued callbacks, update counts, and wait
+		 * for a grace period to elapse.
+		 */
+		ACCESS_ONCE(rdp->nocb_head) = NULL;
+		tail = xchg(&rdp->nocb_tail, &rdp->nocb_head);
+		c = atomic_long_xchg(&rdp->nocb_q_count, 0);
+		cl = atomic_long_xchg(&rdp->nocb_q_count_lazy, 0);
+		ACCESS_ONCE(rdp->nocb_p_count) += c;
+		ACCESS_ONCE(rdp->nocb_p_count_lazy) += cl;
+		rcu_nocb_wait_gp(rdp);
+
+		/* Each pass through the following loop invokes a callback. */
+		trace_rcu_batch_start(rdp->rsp->name, cl, c, -1);
+		c = cl = 0;
+		while (list) {
+			next = list->next;
+			/* Wait for enqueuing to complete, if needed. */
+			while (next == NULL && &list->next != tail) {
+				trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
+						    TPS("WaitQueue"));
+				schedule_timeout_interruptible(1);
+				trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
+						    TPS("WokeQueue"));
+				next = list->next;
+			}
+			debug_rcu_head_unqueue(list);
+			local_bh_disable();
+			if (__rcu_reclaim(rdp->rsp->name, list))
+				cl++;
+			c++;
+			local_bh_enable();
+			list = next;
+		}
+		trace_rcu_batch_end(rdp->rsp->name, c, !!list, 0, 0, 1);
+		ACCESS_ONCE(rdp->nocb_p_count) -= c;
+		ACCESS_ONCE(rdp->nocb_p_count_lazy) -= cl;
+		rdp->n_nocbs_invoked += c;
+	}
+	return 0;
+}
+
+/* Initialize per-rcu_data variables for no-CBs CPUs. */
+static void __init rcu_boot_init_nocb_percpu_data(struct rcu_data *rdp)
+{
+	rdp->nocb_tail = &rdp->nocb_head;
+	init_waitqueue_head(&rdp->nocb_wq);
+}
+
+/* Create a kthread for each RCU flavor for each no-CBs CPU. */
+static void __init rcu_spawn_nocb_kthreads(struct rcu_state *rsp)
+{
+	int cpu;
+	struct rcu_data *rdp;
+	struct task_struct *t;
+
+	if (rcu_nocb_mask == NULL)
+		return;
+	for_each_cpu(cpu, rcu_nocb_mask) {
+		rdp = per_cpu_ptr(rsp->rda, cpu);
+		t = kthread_run(rcu_nocb_kthread, rdp,
+				"rcuo%c/%d", rsp->abbr, cpu);
+		BUG_ON(IS_ERR(t));
+		ACCESS_ONCE(rdp->nocb_kthread) = t;
+	}
+}
+
+/* Prevent __call_rcu() from enqueuing callbacks on no-CBs CPUs */
+static bool init_nocb_callback_list(struct rcu_data *rdp)
+{
+	if (rcu_nocb_mask == NULL ||
+	    !cpumask_test_cpu(rdp->cpu, rcu_nocb_mask))
+		return false;
+	rdp->nxttail[RCU_NEXT_TAIL] = NULL;
+	return true;
+}
+
+#else /* #ifdef CONFIG_RCU_NOCB_CPU */
+
+static int rcu_nocb_needs_gp(struct rcu_state *rsp)
+{
+	return 0;
+}
+
+static void rcu_nocb_gp_cleanup(struct rcu_state *rsp, struct rcu_node *rnp)
+{
+}
+
+static void rcu_nocb_gp_set(struct rcu_node *rnp, int nrq)
+{
+}
+
+static void rcu_init_one_nocb(struct rcu_node *rnp)
+{
+}
+
+static bool __call_rcu_nocb(struct rcu_data *rdp, struct rcu_head *rhp,
+			    bool lazy)
+{
+	return 0;
+}
+
+static bool __maybe_unused rcu_nocb_adopt_orphan_cbs(struct rcu_state *rsp,
+						     struct rcu_data *rdp)
+{
+	return 0;
+}
+
+static void __init rcu_boot_init_nocb_percpu_data(struct rcu_data *rdp)
+{
+}
+
+static void __init rcu_spawn_nocb_kthreads(struct rcu_state *rsp)
+{
+}
+
+static bool init_nocb_callback_list(struct rcu_data *rdp)
+{
+	return false;
+}
+
+#endif /* #else #ifdef CONFIG_RCU_NOCB_CPU */
+
+/*
+ * An adaptive-ticks CPU can potentially execute in kernel mode for an
+ * arbitrarily long period of time with the scheduling-clock tick turned
+ * off.  RCU will be paying attention to this CPU because it is in the
+ * kernel, but the CPU cannot be guaranteed to be executing the RCU state
+ * machine because the scheduling-clock tick has been disabled.  Therefore,
+ * if an adaptive-ticks CPU is failing to respond to the current grace
+ * period and has not be idle from an RCU perspective, kick it.
+ */
+static void rcu_kick_nohz_cpu(int cpu)
+{
+#ifdef CONFIG_NO_HZ_FULL
+	if (tick_nohz_full_cpu(cpu))
+		smp_send_reschedule(cpu);
+#endif /* #ifdef CONFIG_NO_HZ_FULL */
+}
+
+
+#ifdef CONFIG_NO_HZ_FULL_SYSIDLE
+
+/*
+ * Define RCU flavor that holds sysidle state.  This needs to be the
+ * most active flavor of RCU.
+ */
+#ifdef CONFIG_PREEMPT_RCU
+static struct rcu_state *rcu_sysidle_state = &rcu_preempt_state;
+#else /* #ifdef CONFIG_PREEMPT_RCU */
+static struct rcu_state *rcu_sysidle_state = &rcu_sched_state;
+#endif /* #else #ifdef CONFIG_PREEMPT_RCU */
+
+static int full_sysidle_state;		/* Current system-idle state. */
+#define RCU_SYSIDLE_NOT		0	/* Some CPU is not idle. */
+#define RCU_SYSIDLE_SHORT	1	/* All CPUs idle for brief period. */
+#define RCU_SYSIDLE_LONG	2	/* All CPUs idle for long enough. */
+#define RCU_SYSIDLE_FULL	3	/* All CPUs idle, ready for sysidle. */
+#define RCU_SYSIDLE_FULL_NOTED	4	/* Actually entered sysidle state. */
+
+/*
+ * Invoked to note exit from irq or task transition to idle.  Note that
+ * usermode execution does -not- count as idle here!  After all, we want
+ * to detect full-system idle states, not RCU quiescent states and grace
+ * periods.  The caller must have disabled interrupts.
+ */
+static void rcu_sysidle_enter(struct rcu_dynticks *rdtp, int irq)
+{
+	unsigned long j;
+
+	/* Adjust nesting, check for fully idle. */
+	if (irq) {
+		rdtp->dynticks_idle_nesting--;
+		WARN_ON_ONCE(rdtp->dynticks_idle_nesting < 0);
+		if (rdtp->dynticks_idle_nesting != 0)
+			return;  /* Still not fully idle. */
+	} else {
+		if ((rdtp->dynticks_idle_nesting & DYNTICK_TASK_NEST_MASK) ==
+		    DYNTICK_TASK_NEST_VALUE) {
+			rdtp->dynticks_idle_nesting = 0;
+		} else {
+			rdtp->dynticks_idle_nesting -= DYNTICK_TASK_NEST_VALUE;
+			WARN_ON_ONCE(rdtp->dynticks_idle_nesting < 0);
+			return;  /* Still not fully idle. */
+		}
+	}
+
+	/* Record start of fully idle period. */
+	j = jiffies;
+	ACCESS_ONCE(rdtp->dynticks_idle_jiffies) = j;
+	smp_mb__before_atomic_inc();
+	atomic_inc(&rdtp->dynticks_idle);
+	smp_mb__after_atomic_inc();
+	WARN_ON_ONCE(atomic_read(&rdtp->dynticks_idle) & 0x1);
+}
+
+/*
+ * Unconditionally force exit from full system-idle state.  This is
+ * invoked when a normal CPU exits idle, but must be called separately
+ * for the timekeeping CPU (tick_do_timer_cpu).  The reason for this
+ * is that the timekeeping CPU is permitted to take scheduling-clock
+ * interrupts while the system is in system-idle state, and of course
+ * rcu_sysidle_exit() has no way of distinguishing a scheduling-clock
+ * interrupt from any other type of interrupt.
+ */
+void rcu_sysidle_force_exit(void)
+{
+	int oldstate = ACCESS_ONCE(full_sysidle_state);
+	int newoldstate;
+
+	/*
+	 * Each pass through the following loop attempts to exit full
+	 * system-idle state.  If contention proves to be a problem,
+	 * a trylock-based contention tree could be used here.
+	 */
+	while (oldstate > RCU_SYSIDLE_SHORT) {
+		newoldstate = cmpxchg(&full_sysidle_state,
+				      oldstate, RCU_SYSIDLE_NOT);
+		if (oldstate == newoldstate &&
+		    oldstate == RCU_SYSIDLE_FULL_NOTED) {
+			rcu_kick_nohz_cpu(tick_do_timer_cpu);
+			return; /* We cleared it, done! */
+		}
+		oldstate = newoldstate;
+	}
+	smp_mb(); /* Order initial oldstate fetch vs. later non-idle work. */
+}
+
+/*
+ * Invoked to note entry to irq or task transition from idle.  Note that
+ * usermode execution does -not- count as idle here!  The caller must
+ * have disabled interrupts.
+ */
+static void rcu_sysidle_exit(struct rcu_dynticks *rdtp, int irq)
+{
+	/* Adjust nesting, check for already non-idle. */
+	if (irq) {
+		rdtp->dynticks_idle_nesting++;
+		WARN_ON_ONCE(rdtp->dynticks_idle_nesting <= 0);
+		if (rdtp->dynticks_idle_nesting != 1)
+			return; /* Already non-idle. */
+	} else {
+		/*
+		 * Allow for irq misnesting.  Yes, it really is possible
+		 * to enter an irq handler then never leave it, and maybe
+		 * also vice versa.  Handle both possibilities.
+		 */
+		if (rdtp->dynticks_idle_nesting & DYNTICK_TASK_NEST_MASK) {
+			rdtp->dynticks_idle_nesting += DYNTICK_TASK_NEST_VALUE;
+			WARN_ON_ONCE(rdtp->dynticks_idle_nesting <= 0);
+			return; /* Already non-idle. */
+		} else {
+			rdtp->dynticks_idle_nesting = DYNTICK_TASK_EXIT_IDLE;
+		}
+	}
+
+	/* Record end of idle period. */
+	smp_mb__before_atomic_inc();
+	atomic_inc(&rdtp->dynticks_idle);
+	smp_mb__after_atomic_inc();
+	WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks_idle) & 0x1));
+
+	/*
+	 * If we are the timekeeping CPU, we are permitted to be non-idle
+	 * during a system-idle state.  This must be the case, because
+	 * the timekeeping CPU has to take scheduling-clock interrupts
+	 * during the time that the system is transitioning to full
+	 * system-idle state.  This means that the timekeeping CPU must
+	 * invoke rcu_sysidle_force_exit() directly if it does anything
+	 * more than take a scheduling-clock interrupt.
+	 */
+	if (smp_processor_id() == tick_do_timer_cpu)
+		return;
+
+	/* Update system-idle state: We are clearly no longer fully idle! */
+	rcu_sysidle_force_exit();
+}
+
+/*
+ * Check to see if the current CPU is idle.  Note that usermode execution
+ * does not count as idle.  The caller must have disabled interrupts.
+ */
+static void rcu_sysidle_check_cpu(struct rcu_data *rdp, bool *isidle,
+				  unsigned long *maxj)
+{
+	int cur;
+	unsigned long j;
+	struct rcu_dynticks *rdtp = rdp->dynticks;
+
+	/*
+	 * If some other CPU has already reported non-idle, if this is
+	 * not the flavor of RCU that tracks sysidle state, or if this
+	 * is an offline or the timekeeping CPU, nothing to do.
+	 */
+	if (!*isidle || rdp->rsp != rcu_sysidle_state ||
+	    cpu_is_offline(rdp->cpu) || rdp->cpu == tick_do_timer_cpu)
+		return;
+	if (rcu_gp_in_progress(rdp->rsp))
+		WARN_ON_ONCE(smp_processor_id() != tick_do_timer_cpu);
+
+	/* Pick up current idle and NMI-nesting counter and check. */
+	cur = atomic_read(&rdtp->dynticks_idle);
+	if (cur & 0x1) {
+		*isidle = false; /* We are not idle! */
+		return;
+	}
+	smp_mb(); /* Read counters before timestamps. */
+
+	/* Pick up timestamps. */
+	j = ACCESS_ONCE(rdtp->dynticks_idle_jiffies);
+	/* If this CPU entered idle more recently, update maxj timestamp. */
+	if (ULONG_CMP_LT(*maxj, j))
+		*maxj = j;
+}
+
+/*
+ * Is this the flavor of RCU that is handling full-system idle?
+ */
+static bool is_sysidle_rcu_state(struct rcu_state *rsp)
+{
+	return rsp == rcu_sysidle_state;
+}
+
+/*
+ * Bind the grace-period kthread for the sysidle flavor of RCU to the
+ * timekeeping CPU.
+ */
+static void rcu_bind_gp_kthread(void)
+{
+	int cpu = ACCESS_ONCE(tick_do_timer_cpu);
+
+	if (cpu < 0 || cpu >= nr_cpu_ids)
+		return;
+	if (raw_smp_processor_id() != cpu)
+		set_cpus_allowed_ptr(current, cpumask_of(cpu));
+}
+
+/*
+ * Return a delay in jiffies based on the number of CPUs, rcu_node
+ * leaf fanout, and jiffies tick rate.  The idea is to allow larger
+ * systems more time to transition to full-idle state in order to
+ * avoid the cache thrashing that otherwise occur on the state variable.
+ * Really small systems (less than a couple of tens of CPUs) should
+ * instead use a single global atomically incremented counter, and later
+ * versions of this will automatically reconfigure themselves accordingly.
+ */
+static unsigned long rcu_sysidle_delay(void)
+{
+	if (nr_cpu_ids <= CONFIG_NO_HZ_FULL_SYSIDLE_SMALL)
+		return 0;
+	return DIV_ROUND_UP(nr_cpu_ids * HZ, rcu_fanout_leaf * 1000);
+}
+
+/*
+ * Advance the full-system-idle state.  This is invoked when all of
+ * the non-timekeeping CPUs are idle.
+ */
+static void rcu_sysidle(unsigned long j)
+{
+	/* Check the current state. */
+	switch (ACCESS_ONCE(full_sysidle_state)) {
+	case RCU_SYSIDLE_NOT:
+
+		/* First time all are idle, so note a short idle period. */
+		ACCESS_ONCE(full_sysidle_state) = RCU_SYSIDLE_SHORT;
+		break;
+
+	case RCU_SYSIDLE_SHORT:
+
+		/*
+		 * Idle for a bit, time to advance to next state?
+		 * cmpxchg failure means race with non-idle, let them win.
+		 */
+		if (ULONG_CMP_GE(jiffies, j + rcu_sysidle_delay()))
+			(void)cmpxchg(&full_sysidle_state,
+				      RCU_SYSIDLE_SHORT, RCU_SYSIDLE_LONG);
+		break;
+
+	case RCU_SYSIDLE_LONG:
+
+		/*
+		 * Do an additional check pass before advancing to full.
+		 * cmpxchg failure means race with non-idle, let them win.
+		 */
+		if (ULONG_CMP_GE(jiffies, j + rcu_sysidle_delay()))
+			(void)cmpxchg(&full_sysidle_state,
+				      RCU_SYSIDLE_LONG, RCU_SYSIDLE_FULL);
+		break;
+
+	default:
+		break;
+	}
+}
+
+/*
+ * Found a non-idle non-timekeeping CPU, so kick the system-idle state
+ * back to the beginning.
+ */
+static void rcu_sysidle_cancel(void)
+{
+	smp_mb();
+	ACCESS_ONCE(full_sysidle_state) = RCU_SYSIDLE_NOT;
+}
+
+/*
+ * Update the sysidle state based on the results of a force-quiescent-state
+ * scan of the CPUs' dyntick-idle state.
+ */
+static void rcu_sysidle_report(struct rcu_state *rsp, int isidle,
+			       unsigned long maxj, bool gpkt)
+{
+	if (rsp != rcu_sysidle_state)
+		return;  /* Wrong flavor, ignore. */
+	if (gpkt && nr_cpu_ids <= CONFIG_NO_HZ_FULL_SYSIDLE_SMALL)
+		return;  /* Running state machine from timekeeping CPU. */
+	if (isidle)
+		rcu_sysidle(maxj);    /* More idle! */
+	else
+		rcu_sysidle_cancel(); /* Idle is over. */
+}
+
+/*
+ * Wrapper for rcu_sysidle_report() when called from the grace-period
+ * kthread's context.
+ */
+static void rcu_sysidle_report_gp(struct rcu_state *rsp, int isidle,
+				  unsigned long maxj)
+{
+	rcu_sysidle_report(rsp, isidle, maxj, true);
+}
+
+/* Callback and function for forcing an RCU grace period. */
+struct rcu_sysidle_head {
+	struct rcu_head rh;
+	int inuse;
+};
+
+static void rcu_sysidle_cb(struct rcu_head *rhp)
+{
+	struct rcu_sysidle_head *rshp;
+
+	/*
+	 * The following memory barrier is needed to replace the
+	 * memory barriers that would normally be in the memory
+	 * allocator.
+	 */
+	smp_mb();  /* grace period precedes setting inuse. */
+
+	rshp = container_of(rhp, struct rcu_sysidle_head, rh);
+	ACCESS_ONCE(rshp->inuse) = 0;
+}
+
+/*
+ * Check to see if the system is fully idle, other than the timekeeping CPU.
+ * The caller must have disabled interrupts.
+ */
+bool rcu_sys_is_idle(void)
+{
+	static struct rcu_sysidle_head rsh;
+	int rss = ACCESS_ONCE(full_sysidle_state);
+
+	if (WARN_ON_ONCE(smp_processor_id() != tick_do_timer_cpu))
+		return false;
+
+	/* Handle small-system case by doing a full scan of CPUs. */
+	if (nr_cpu_ids <= CONFIG_NO_HZ_FULL_SYSIDLE_SMALL) {
+		int oldrss = rss - 1;
+
+		/*
+		 * One pass to advance to each state up to _FULL.
+		 * Give up if any pass fails to advance the state.
+		 */
+		while (rss < RCU_SYSIDLE_FULL && oldrss < rss) {
+			int cpu;
+			bool isidle = true;
+			unsigned long maxj = jiffies - ULONG_MAX / 4;
+			struct rcu_data *rdp;
+
+			/* Scan all the CPUs looking for nonidle CPUs. */
+			for_each_possible_cpu(cpu) {
+				rdp = per_cpu_ptr(rcu_sysidle_state->rda, cpu);
+				rcu_sysidle_check_cpu(rdp, &isidle, &maxj);
+				if (!isidle)
+					break;
+			}
+			rcu_sysidle_report(rcu_sysidle_state,
+					   isidle, maxj, false);
+			oldrss = rss;
+			rss = ACCESS_ONCE(full_sysidle_state);
+		}
+	}
+
+	/* If this is the first observation of an idle period, record it. */
+	if (rss == RCU_SYSIDLE_FULL) {
+		rss = cmpxchg(&full_sysidle_state,
+			      RCU_SYSIDLE_FULL, RCU_SYSIDLE_FULL_NOTED);
+		return rss == RCU_SYSIDLE_FULL;
+	}
+
+	smp_mb(); /* ensure rss load happens before later caller actions. */
+
+	/* If already fully idle, tell the caller (in case of races). */
+	if (rss == RCU_SYSIDLE_FULL_NOTED)
+		return true;
+
+	/*
+	 * If we aren't there yet, and a grace period is not in flight,
+	 * initiate a grace period.  Either way, tell the caller that
+	 * we are not there yet.  We use an xchg() rather than an assignment
+	 * to make up for the memory barriers that would otherwise be
+	 * provided by the memory allocator.
+	 */
+	if (nr_cpu_ids > CONFIG_NO_HZ_FULL_SYSIDLE_SMALL &&
+	    !rcu_gp_in_progress(rcu_sysidle_state) &&
+	    !rsh.inuse && xchg(&rsh.inuse, 1) == 0)
+		call_rcu(&rsh.rh, rcu_sysidle_cb);
+	return false;
+}
+
+/*
+ * Initialize dynticks sysidle state for CPUs coming online.
+ */
+static void rcu_sysidle_init_percpu_data(struct rcu_dynticks *rdtp)
+{
+	rdtp->dynticks_idle_nesting = DYNTICK_TASK_NEST_VALUE;
+}
+
+#else /* #ifdef CONFIG_NO_HZ_FULL_SYSIDLE */
+
+static void rcu_sysidle_enter(struct rcu_dynticks *rdtp, int irq)
+{
+}
+
+static void rcu_sysidle_exit(struct rcu_dynticks *rdtp, int irq)
+{
+}
+
+static void rcu_sysidle_check_cpu(struct rcu_data *rdp, bool *isidle,
+				  unsigned long *maxj)
+{
+}
+
+static bool is_sysidle_rcu_state(struct rcu_state *rsp)
+{
+	return false;
+}
+
+static void rcu_bind_gp_kthread(void)
+{
+}
+
+static void rcu_sysidle_report_gp(struct rcu_state *rsp, int isidle,
+				  unsigned long maxj)
+{
+}
+
+static void rcu_sysidle_init_percpu_data(struct rcu_dynticks *rdtp)
+{
+}
+
+#endif /* #else #ifdef CONFIG_NO_HZ_FULL_SYSIDLE */
diff --git a/kernel/rcu/tree_trace.c b/kernel/rcu/tree_trace.c
new file mode 100644
index 000000000000..3596797b7e46
--- /dev/null
+++ b/kernel/rcu/tree_trace.c
@@ -0,0 +1,500 @@
+/*
+ * Read-Copy Update tracing for classic implementation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright IBM Corporation, 2008
+ *
+ * Papers:  http://www.rdrop.com/users/paulmck/RCU
+ *
+ * For detailed explanation of Read-Copy Update mechanism see -
+ *		Documentation/RCU
+ *
+ */
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/smp.h>
+#include <linux/rcupdate.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/atomic.h>
+#include <linux/bitops.h>
+#include <linux/module.h>
+#include <linux/completion.h>
+#include <linux/moduleparam.h>
+#include <linux/percpu.h>
+#include <linux/notifier.h>
+#include <linux/cpu.h>
+#include <linux/mutex.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+
+#define RCU_TREE_NONCORE
+#include "tree.h"
+
+static int r_open(struct inode *inode, struct file *file,
+					const struct seq_operations *op)
+{
+	int ret = seq_open(file, op);
+	if (!ret) {
+		struct seq_file *m = (struct seq_file *)file->private_data;
+		m->private = inode->i_private;
+	}
+	return ret;
+}
+
+static void *r_start(struct seq_file *m, loff_t *pos)
+{
+	struct rcu_state *rsp = (struct rcu_state *)m->private;
+	*pos = cpumask_next(*pos - 1, cpu_possible_mask);
+	if ((*pos) < nr_cpu_ids)
+		return per_cpu_ptr(rsp->rda, *pos);
+	return NULL;
+}
+
+static void *r_next(struct seq_file *m, void *v, loff_t *pos)
+{
+	(*pos)++;
+	return r_start(m, pos);
+}
+
+static void r_stop(struct seq_file *m, void *v)
+{
+}
+
+static int show_rcubarrier(struct seq_file *m, void *v)
+{
+	struct rcu_state *rsp = (struct rcu_state *)m->private;
+	seq_printf(m, "bcc: %d nbd: %lu\n",
+		   atomic_read(&rsp->barrier_cpu_count),
+		   rsp->n_barrier_done);
+	return 0;
+}
+
+static int rcubarrier_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, show_rcubarrier, inode->i_private);
+}
+
+static const struct file_operations rcubarrier_fops = {
+	.owner = THIS_MODULE,
+	.open = rcubarrier_open,
+	.read = seq_read,
+	.llseek = no_llseek,
+	.release = single_release,
+};
+
+#ifdef CONFIG_RCU_BOOST
+
+static char convert_kthread_status(unsigned int kthread_status)
+{
+	if (kthread_status > RCU_KTHREAD_MAX)
+		return '?';
+	return "SRWOY"[kthread_status];
+}
+
+#endif /* #ifdef CONFIG_RCU_BOOST */
+
+static void print_one_rcu_data(struct seq_file *m, struct rcu_data *rdp)
+{
+	long ql, qll;
+
+	if (!rdp->beenonline)
+		return;
+	seq_printf(m, "%3d%cc=%ld g=%ld pq=%d qp=%d",
+		   rdp->cpu,
+		   cpu_is_offline(rdp->cpu) ? '!' : ' ',
+		   ulong2long(rdp->completed), ulong2long(rdp->gpnum),
+		   rdp->passed_quiesce, rdp->qs_pending);
+	seq_printf(m, " dt=%d/%llx/%d df=%lu",
+		   atomic_read(&rdp->dynticks->dynticks),
+		   rdp->dynticks->dynticks_nesting,
+		   rdp->dynticks->dynticks_nmi_nesting,
+		   rdp->dynticks_fqs);
+	seq_printf(m, " of=%lu", rdp->offline_fqs);
+	rcu_nocb_q_lengths(rdp, &ql, &qll);
+	qll += rdp->qlen_lazy;
+	ql += rdp->qlen;
+	seq_printf(m, " ql=%ld/%ld qs=%c%c%c%c",
+		   qll, ql,
+		   ".N"[rdp->nxttail[RCU_NEXT_READY_TAIL] !=
+			rdp->nxttail[RCU_NEXT_TAIL]],
+		   ".R"[rdp->nxttail[RCU_WAIT_TAIL] !=
+			rdp->nxttail[RCU_NEXT_READY_TAIL]],
+		   ".W"[rdp->nxttail[RCU_DONE_TAIL] !=
+			rdp->nxttail[RCU_WAIT_TAIL]],
+		   ".D"[&rdp->nxtlist != rdp->nxttail[RCU_DONE_TAIL]]);
+#ifdef CONFIG_RCU_BOOST
+	seq_printf(m, " kt=%d/%c ktl=%x",
+		   per_cpu(rcu_cpu_has_work, rdp->cpu),
+		   convert_kthread_status(per_cpu(rcu_cpu_kthread_status,
+					  rdp->cpu)),
+		   per_cpu(rcu_cpu_kthread_loops, rdp->cpu) & 0xffff);
+#endif /* #ifdef CONFIG_RCU_BOOST */
+	seq_printf(m, " b=%ld", rdp->blimit);
+	seq_printf(m, " ci=%lu nci=%lu co=%lu ca=%lu\n",
+		   rdp->n_cbs_invoked, rdp->n_nocbs_invoked,
+		   rdp->n_cbs_orphaned, rdp->n_cbs_adopted);
+}
+
+static int show_rcudata(struct seq_file *m, void *v)
+{
+	print_one_rcu_data(m, (struct rcu_data *)v);
+	return 0;
+}
+
+static const struct seq_operations rcudate_op = {
+	.start = r_start,
+	.next  = r_next,
+	.stop  = r_stop,
+	.show  = show_rcudata,
+};
+
+static int rcudata_open(struct inode *inode, struct file *file)
+{
+	return r_open(inode, file, &rcudate_op);
+}
+
+static const struct file_operations rcudata_fops = {
+	.owner = THIS_MODULE,
+	.open = rcudata_open,
+	.read = seq_read,
+	.llseek = no_llseek,
+	.release = seq_release,
+};
+
+static int show_rcuexp(struct seq_file *m, void *v)
+{
+	struct rcu_state *rsp = (struct rcu_state *)m->private;
+
+	seq_printf(m, "s=%lu d=%lu w=%lu tf=%lu wd1=%lu wd2=%lu n=%lu sc=%lu dt=%lu dl=%lu dx=%lu\n",
+		   atomic_long_read(&rsp->expedited_start),
+		   atomic_long_read(&rsp->expedited_done),
+		   atomic_long_read(&rsp->expedited_wrap),
+		   atomic_long_read(&rsp->expedited_tryfail),
+		   atomic_long_read(&rsp->expedited_workdone1),
+		   atomic_long_read(&rsp->expedited_workdone2),
+		   atomic_long_read(&rsp->expedited_normal),
+		   atomic_long_read(&rsp->expedited_stoppedcpus),
+		   atomic_long_read(&rsp->expedited_done_tries),
+		   atomic_long_read(&rsp->expedited_done_lost),
+		   atomic_long_read(&rsp->expedited_done_exit));
+	return 0;
+}
+
+static int rcuexp_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, show_rcuexp, inode->i_private);
+}
+
+static const struct file_operations rcuexp_fops = {
+	.owner = THIS_MODULE,
+	.open = rcuexp_open,
+	.read = seq_read,
+	.llseek = no_llseek,
+	.release = single_release,
+};
+
+#ifdef CONFIG_RCU_BOOST
+
+static void print_one_rcu_node_boost(struct seq_file *m, struct rcu_node *rnp)
+{
+	seq_printf(m, "%d:%d tasks=%c%c%c%c kt=%c ntb=%lu neb=%lu nnb=%lu ",
+		   rnp->grplo, rnp->grphi,
+		   "T."[list_empty(&rnp->blkd_tasks)],
+		   "N."[!rnp->gp_tasks],
+		   "E."[!rnp->exp_tasks],
+		   "B."[!rnp->boost_tasks],
+		   convert_kthread_status(rnp->boost_kthread_status),
+		   rnp->n_tasks_boosted, rnp->n_exp_boosts,
+		   rnp->n_normal_boosts);
+	seq_printf(m, "j=%04x bt=%04x\n",
+		   (int)(jiffies & 0xffff),
+		   (int)(rnp->boost_time & 0xffff));
+	seq_printf(m, "    balk: nt=%lu egt=%lu bt=%lu nb=%lu ny=%lu nos=%lu\n",
+		   rnp->n_balk_blkd_tasks,
+		   rnp->n_balk_exp_gp_tasks,
+		   rnp->n_balk_boost_tasks,
+		   rnp->n_balk_notblocked,
+		   rnp->n_balk_notyet,
+		   rnp->n_balk_nos);
+}
+
+static int show_rcu_node_boost(struct seq_file *m, void *unused)
+{
+	struct rcu_node *rnp;
+
+	rcu_for_each_leaf_node(&rcu_preempt_state, rnp)
+		print_one_rcu_node_boost(m, rnp);
+	return 0;
+}
+
+static int rcu_node_boost_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, show_rcu_node_boost, NULL);
+}
+
+static const struct file_operations rcu_node_boost_fops = {
+	.owner = THIS_MODULE,
+	.open = rcu_node_boost_open,
+	.read = seq_read,
+	.llseek = no_llseek,
+	.release = single_release,
+};
+
+#endif /* #ifdef CONFIG_RCU_BOOST */
+
+static void print_one_rcu_state(struct seq_file *m, struct rcu_state *rsp)
+{
+	unsigned long gpnum;
+	int level = 0;
+	struct rcu_node *rnp;
+
+	gpnum = rsp->gpnum;
+	seq_printf(m, "c=%ld g=%ld s=%d jfq=%ld j=%x ",
+		   ulong2long(rsp->completed), ulong2long(gpnum),
+		   rsp->fqs_state,
+		   (long)(rsp->jiffies_force_qs - jiffies),
+		   (int)(jiffies & 0xffff));
+	seq_printf(m, "nfqs=%lu/nfqsng=%lu(%lu) fqlh=%lu oqlen=%ld/%ld\n",
+		   rsp->n_force_qs, rsp->n_force_qs_ngp,
+		   rsp->n_force_qs - rsp->n_force_qs_ngp,
+		   rsp->n_force_qs_lh, rsp->qlen_lazy, rsp->qlen);
+	for (rnp = &rsp->node[0]; rnp - &rsp->node[0] < rcu_num_nodes; rnp++) {
+		if (rnp->level != level) {
+			seq_puts(m, "\n");
+			level = rnp->level;
+		}
+		seq_printf(m, "%lx/%lx %c%c>%c %d:%d ^%d    ",
+			   rnp->qsmask, rnp->qsmaskinit,
+			   ".G"[rnp->gp_tasks != NULL],
+			   ".E"[rnp->exp_tasks != NULL],
+			   ".T"[!list_empty(&rnp->blkd_tasks)],
+			   rnp->grplo, rnp->grphi, rnp->grpnum);
+	}
+	seq_puts(m, "\n");
+}
+
+static int show_rcuhier(struct seq_file *m, void *v)
+{
+	struct rcu_state *rsp = (struct rcu_state *)m->private;
+	print_one_rcu_state(m, rsp);
+	return 0;
+}
+
+static int rcuhier_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, show_rcuhier, inode->i_private);
+}
+
+static const struct file_operations rcuhier_fops = {
+	.owner = THIS_MODULE,
+	.open = rcuhier_open,
+	.read = seq_read,
+	.llseek = no_llseek,
+	.release = single_release,
+};
+
+static void show_one_rcugp(struct seq_file *m, struct rcu_state *rsp)
+{
+	unsigned long flags;
+	unsigned long completed;
+	unsigned long gpnum;
+	unsigned long gpage;
+	unsigned long gpmax;
+	struct rcu_node *rnp = &rsp->node[0];
+
+	raw_spin_lock_irqsave(&rnp->lock, flags);
+	completed = ACCESS_ONCE(rsp->completed);
+	gpnum = ACCESS_ONCE(rsp->gpnum);
+	if (completed == gpnum)
+		gpage = 0;
+	else
+		gpage = jiffies - rsp->gp_start;
+	gpmax = rsp->gp_max;
+	raw_spin_unlock_irqrestore(&rnp->lock, flags);
+	seq_printf(m, "completed=%ld  gpnum=%ld  age=%ld  max=%ld\n",
+		   ulong2long(completed), ulong2long(gpnum), gpage, gpmax);
+}
+
+static int show_rcugp(struct seq_file *m, void *v)
+{
+	struct rcu_state *rsp = (struct rcu_state *)m->private;
+	show_one_rcugp(m, rsp);
+	return 0;
+}
+
+static int rcugp_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, show_rcugp, inode->i_private);
+}
+
+static const struct file_operations rcugp_fops = {
+	.owner = THIS_MODULE,
+	.open = rcugp_open,
+	.read = seq_read,
+	.llseek = no_llseek,
+	.release = single_release,
+};
+
+static void print_one_rcu_pending(struct seq_file *m, struct rcu_data *rdp)
+{
+	if (!rdp->beenonline)
+		return;
+	seq_printf(m, "%3d%cnp=%ld ",
+		   rdp->cpu,
+		   cpu_is_offline(rdp->cpu) ? '!' : ' ',
+		   rdp->n_rcu_pending);
+	seq_printf(m, "qsp=%ld rpq=%ld cbr=%ld cng=%ld ",
+		   rdp->n_rp_qs_pending,
+		   rdp->n_rp_report_qs,
+		   rdp->n_rp_cb_ready,
+		   rdp->n_rp_cpu_needs_gp);
+	seq_printf(m, "gpc=%ld gps=%ld nn=%ld\n",
+		   rdp->n_rp_gp_completed,
+		   rdp->n_rp_gp_started,
+		   rdp->n_rp_need_nothing);
+}
+
+static int show_rcu_pending(struct seq_file *m, void *v)
+{
+	print_one_rcu_pending(m, (struct rcu_data *)v);
+	return 0;
+}
+
+static const struct seq_operations rcu_pending_op = {
+	.start = r_start,
+	.next  = r_next,
+	.stop  = r_stop,
+	.show  = show_rcu_pending,
+};
+
+static int rcu_pending_open(struct inode *inode, struct file *file)
+{
+	return r_open(inode, file, &rcu_pending_op);
+}
+
+static const struct file_operations rcu_pending_fops = {
+	.owner = THIS_MODULE,
+	.open = rcu_pending_open,
+	.read = seq_read,
+	.llseek = no_llseek,
+	.release = seq_release,
+};
+
+static int show_rcutorture(struct seq_file *m, void *unused)
+{
+	seq_printf(m, "rcutorture test sequence: %lu %s\n",
+		   rcutorture_testseq >> 1,
+		   (rcutorture_testseq & 0x1) ? "(test in progress)" : "");
+	seq_printf(m, "rcutorture update version number: %lu\n",
+		   rcutorture_vernum);
+	return 0;
+}
+
+static int rcutorture_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, show_rcutorture, NULL);
+}
+
+static const struct file_operations rcutorture_fops = {
+	.owner = THIS_MODULE,
+	.open = rcutorture_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static struct dentry *rcudir;
+
+static int __init rcutree_trace_init(void)
+{
+	struct rcu_state *rsp;
+	struct dentry *retval;
+	struct dentry *rspdir;
+
+	rcudir = debugfs_create_dir("rcu", NULL);
+	if (!rcudir)
+		goto free_out;
+
+	for_each_rcu_flavor(rsp) {
+		rspdir = debugfs_create_dir(rsp->name, rcudir);
+		if (!rspdir)
+			goto free_out;
+
+		retval = debugfs_create_file("rcudata", 0444,
+				rspdir, rsp, &rcudata_fops);
+		if (!retval)
+			goto free_out;
+
+		retval = debugfs_create_file("rcuexp", 0444,
+				rspdir, rsp, &rcuexp_fops);
+		if (!retval)
+			goto free_out;
+
+		retval = debugfs_create_file("rcu_pending", 0444,
+				rspdir, rsp, &rcu_pending_fops);
+		if (!retval)
+			goto free_out;
+
+		retval = debugfs_create_file("rcubarrier", 0444,
+				rspdir, rsp, &rcubarrier_fops);
+		if (!retval)
+			goto free_out;
+
+#ifdef CONFIG_RCU_BOOST
+		if (rsp == &rcu_preempt_state) {
+			retval = debugfs_create_file("rcuboost", 0444,
+				rspdir, NULL, &rcu_node_boost_fops);
+			if (!retval)
+				goto free_out;
+		}
+#endif
+
+		retval = debugfs_create_file("rcugp", 0444,
+				rspdir, rsp, &rcugp_fops);
+		if (!retval)
+			goto free_out;
+
+		retval = debugfs_create_file("rcuhier", 0444,
+				rspdir, rsp, &rcuhier_fops);
+		if (!retval)
+			goto free_out;
+	}
+
+	retval = debugfs_create_file("rcutorture", 0444, rcudir,
+						NULL, &rcutorture_fops);
+	if (!retval)
+		goto free_out;
+	return 0;
+free_out:
+	debugfs_remove_recursive(rcudir);
+	return 1;
+}
+
+static void __exit rcutree_trace_cleanup(void)
+{
+	debugfs_remove_recursive(rcudir);
+}
+
+
+module_init(rcutree_trace_init);
+module_exit(rcutree_trace_cleanup);
+
+MODULE_AUTHOR("Paul E. McKenney");
+MODULE_DESCRIPTION("Read-Copy Update tracing for hierarchical implementation");
+MODULE_LICENSE("GPL");
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c
new file mode 100644
index 000000000000..6cb3dff89e2b
--- /dev/null
+++ b/kernel/rcu/update.c
@@ -0,0 +1,347 @@
+/*
+ * Read-Copy Update mechanism for mutual exclusion
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright IBM Corporation, 2001
+ *
+ * Authors: Dipankar Sarma <dipankar@in.ibm.com>
+ *	    Manfred Spraul <manfred@colorfullife.com>
+ *
+ * Based on the original work by Paul McKenney <paulmck@us.ibm.com>
+ * and inputs from Rusty Russell, Andrea Arcangeli and Andi Kleen.
+ * Papers:
+ * http://www.rdrop.com/users/paulmck/paper/rclockpdcsproof.pdf
+ * http://lse.sourceforge.net/locking/rclock_OLS.2001.05.01c.sc.pdf (OLS2001)
+ *
+ * For detailed explanation of Read-Copy Update mechanism see -
+ *		http://lse.sourceforge.net/locking/rcupdate.html
+ *
+ */
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/spinlock.h>
+#include <linux/smp.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/atomic.h>
+#include <linux/bitops.h>
+#include <linux/percpu.h>
+#include <linux/notifier.h>
+#include <linux/cpu.h>
+#include <linux/mutex.h>
+#include <linux/export.h>
+#include <linux/hardirq.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+
+#define CREATE_TRACE_POINTS
+#include <trace/events/rcu.h>
+
+#include "rcu.h"
+
+MODULE_ALIAS("rcupdate");
+#ifdef MODULE_PARAM_PREFIX
+#undef MODULE_PARAM_PREFIX
+#endif
+#define MODULE_PARAM_PREFIX "rcupdate."
+
+module_param(rcu_expedited, int, 0);
+
+#ifdef CONFIG_PREEMPT_RCU
+
+/*
+ * Preemptible RCU implementation for rcu_read_lock().
+ * Just increment ->rcu_read_lock_nesting, shared state will be updated
+ * if we block.
+ */
+void __rcu_read_lock(void)
+{
+	current->rcu_read_lock_nesting++;
+	barrier();  /* critical section after entry code. */
+}
+EXPORT_SYMBOL_GPL(__rcu_read_lock);
+
+/*
+ * Preemptible RCU implementation for rcu_read_unlock().
+ * Decrement ->rcu_read_lock_nesting.  If the result is zero (outermost
+ * rcu_read_unlock()) and ->rcu_read_unlock_special is non-zero, then
+ * invoke rcu_read_unlock_special() to clean up after a context switch
+ * in an RCU read-side critical section and other special cases.
+ */
+void __rcu_read_unlock(void)
+{
+	struct task_struct *t = current;
+
+	if (t->rcu_read_lock_nesting != 1) {
+		--t->rcu_read_lock_nesting;
+	} else {
+		barrier();  /* critical section before exit code. */
+		t->rcu_read_lock_nesting = INT_MIN;
+#ifdef CONFIG_PROVE_RCU_DELAY
+		udelay(10); /* Make preemption more probable. */
+#endif /* #ifdef CONFIG_PROVE_RCU_DELAY */
+		barrier();  /* assign before ->rcu_read_unlock_special load */
+		if (unlikely(ACCESS_ONCE(t->rcu_read_unlock_special)))
+			rcu_read_unlock_special(t);
+		barrier();  /* ->rcu_read_unlock_special load before assign */
+		t->rcu_read_lock_nesting = 0;
+	}
+#ifdef CONFIG_PROVE_LOCKING
+	{
+		int rrln = ACCESS_ONCE(t->rcu_read_lock_nesting);
+
+		WARN_ON_ONCE(rrln < 0 && rrln > INT_MIN / 2);
+	}
+#endif /* #ifdef CONFIG_PROVE_LOCKING */
+}
+EXPORT_SYMBOL_GPL(__rcu_read_unlock);
+
+#endif /* #ifdef CONFIG_PREEMPT_RCU */
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+static struct lock_class_key rcu_lock_key;
+struct lockdep_map rcu_lock_map =
+	STATIC_LOCKDEP_MAP_INIT("rcu_read_lock", &rcu_lock_key);
+EXPORT_SYMBOL_GPL(rcu_lock_map);
+
+static struct lock_class_key rcu_bh_lock_key;
+struct lockdep_map rcu_bh_lock_map =
+	STATIC_LOCKDEP_MAP_INIT("rcu_read_lock_bh", &rcu_bh_lock_key);
+EXPORT_SYMBOL_GPL(rcu_bh_lock_map);
+
+static struct lock_class_key rcu_sched_lock_key;
+struct lockdep_map rcu_sched_lock_map =
+	STATIC_LOCKDEP_MAP_INIT("rcu_read_lock_sched", &rcu_sched_lock_key);
+EXPORT_SYMBOL_GPL(rcu_sched_lock_map);
+
+int notrace debug_lockdep_rcu_enabled(void)
+{
+	return rcu_scheduler_active && debug_locks &&
+	       current->lockdep_recursion == 0;
+}
+EXPORT_SYMBOL_GPL(debug_lockdep_rcu_enabled);
+
+/**
+ * rcu_read_lock_bh_held() - might we be in RCU-bh read-side critical section?
+ *
+ * Check for bottom half being disabled, which covers both the
+ * CONFIG_PROVE_RCU and not cases.  Note that if someone uses
+ * rcu_read_lock_bh(), but then later enables BH, lockdep (if enabled)
+ * will show the situation.  This is useful for debug checks in functions
+ * that require that they be called within an RCU read-side critical
+ * section.
+ *
+ * Check debug_lockdep_rcu_enabled() to prevent false positives during boot.
+ *
+ * Note that rcu_read_lock() is disallowed if the CPU is either idle or
+ * offline from an RCU perspective, so check for those as well.
+ */
+int rcu_read_lock_bh_held(void)
+{
+	if (!debug_lockdep_rcu_enabled())
+		return 1;
+	if (!rcu_is_watching())
+		return 0;
+	if (!rcu_lockdep_current_cpu_online())
+		return 0;
+	return in_softirq() || irqs_disabled();
+}
+EXPORT_SYMBOL_GPL(rcu_read_lock_bh_held);
+
+#endif /* #ifdef CONFIG_DEBUG_LOCK_ALLOC */
+
+struct rcu_synchronize {
+	struct rcu_head head;
+	struct completion completion;
+};
+
+/*
+ * Awaken the corresponding synchronize_rcu() instance now that a
+ * grace period has elapsed.
+ */
+static void wakeme_after_rcu(struct rcu_head  *head)
+{
+	struct rcu_synchronize *rcu;
+
+	rcu = container_of(head, struct rcu_synchronize, head);
+	complete(&rcu->completion);
+}
+
+void wait_rcu_gp(call_rcu_func_t crf)
+{
+	struct rcu_synchronize rcu;
+
+	init_rcu_head_on_stack(&rcu.head);
+	init_completion(&rcu.completion);
+	/* Will wake me after RCU finished. */
+	crf(&rcu.head, wakeme_after_rcu);
+	/* Wait for it. */
+	wait_for_completion(&rcu.completion);
+	destroy_rcu_head_on_stack(&rcu.head);
+}
+EXPORT_SYMBOL_GPL(wait_rcu_gp);
+
+#ifdef CONFIG_PROVE_RCU
+/*
+ * wrapper function to avoid #include problems.
+ */
+int rcu_my_thread_group_empty(void)
+{
+	return thread_group_empty(current);
+}
+EXPORT_SYMBOL_GPL(rcu_my_thread_group_empty);
+#endif /* #ifdef CONFIG_PROVE_RCU */
+
+#ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD
+static inline void debug_init_rcu_head(struct rcu_head *head)
+{
+	debug_object_init(head, &rcuhead_debug_descr);
+}
+
+static inline void debug_rcu_head_free(struct rcu_head *head)
+{
+	debug_object_free(head, &rcuhead_debug_descr);
+}
+
+/*
+ * fixup_activate is called when:
+ * - an active object is activated
+ * - an unknown object is activated (might be a statically initialized object)
+ * Activation is performed internally by call_rcu().
+ */
+static int rcuhead_fixup_activate(void *addr, enum debug_obj_state state)
+{
+	struct rcu_head *head = addr;
+
+	switch (state) {
+
+	case ODEBUG_STATE_NOTAVAILABLE:
+		/*
+		 * This is not really a fixup. We just make sure that it is
+		 * tracked in the object tracker.
+		 */
+		debug_object_init(head, &rcuhead_debug_descr);
+		debug_object_activate(head, &rcuhead_debug_descr);
+		return 0;
+	default:
+		return 1;
+	}
+}
+
+/**
+ * init_rcu_head_on_stack() - initialize on-stack rcu_head for debugobjects
+ * @head: pointer to rcu_head structure to be initialized
+ *
+ * This function informs debugobjects of a new rcu_head structure that
+ * has been allocated as an auto variable on the stack.  This function
+ * is not required for rcu_head structures that are statically defined or
+ * that are dynamically allocated on the heap.  This function has no
+ * effect for !CONFIG_DEBUG_OBJECTS_RCU_HEAD kernel builds.
+ */
+void init_rcu_head_on_stack(struct rcu_head *head)
+{
+	debug_object_init_on_stack(head, &rcuhead_debug_descr);
+}
+EXPORT_SYMBOL_GPL(init_rcu_head_on_stack);
+
+/**
+ * destroy_rcu_head_on_stack() - destroy on-stack rcu_head for debugobjects
+ * @head: pointer to rcu_head structure to be initialized
+ *
+ * This function informs debugobjects that an on-stack rcu_head structure
+ * is about to go out of scope.  As with init_rcu_head_on_stack(), this
+ * function is not required for rcu_head structures that are statically
+ * defined or that are dynamically allocated on the heap.  Also as with
+ * init_rcu_head_on_stack(), this function has no effect for
+ * !CONFIG_DEBUG_OBJECTS_RCU_HEAD kernel builds.
+ */
+void destroy_rcu_head_on_stack(struct rcu_head *head)
+{
+	debug_object_free(head, &rcuhead_debug_descr);
+}
+EXPORT_SYMBOL_GPL(destroy_rcu_head_on_stack);
+
+struct debug_obj_descr rcuhead_debug_descr = {
+	.name = "rcu_head",
+	.fixup_activate = rcuhead_fixup_activate,
+};
+EXPORT_SYMBOL_GPL(rcuhead_debug_descr);
+#endif /* #ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD */
+
+#if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU) || defined(CONFIG_RCU_TRACE)
+void do_trace_rcu_torture_read(const char *rcutorturename, struct rcu_head *rhp,
+			       unsigned long secs,
+			       unsigned long c_old, unsigned long c)
+{
+	trace_rcu_torture_read(rcutorturename, rhp, secs, c_old, c);
+}
+EXPORT_SYMBOL_GPL(do_trace_rcu_torture_read);
+#else
+#define do_trace_rcu_torture_read(rcutorturename, rhp, secs, c_old, c) \
+	do { } while (0)
+#endif
+
+#ifdef CONFIG_RCU_STALL_COMMON
+
+#ifdef CONFIG_PROVE_RCU
+#define RCU_STALL_DELAY_DELTA	       (5 * HZ)
+#else
+#define RCU_STALL_DELAY_DELTA	       0
+#endif
+
+int rcu_cpu_stall_suppress __read_mostly; /* 1 = suppress stall warnings. */
+static int rcu_cpu_stall_timeout __read_mostly = CONFIG_RCU_CPU_STALL_TIMEOUT;
+
+module_param(rcu_cpu_stall_suppress, int, 0644);
+module_param(rcu_cpu_stall_timeout, int, 0644);
+
+int rcu_jiffies_till_stall_check(void)
+{
+	int till_stall_check = ACCESS_ONCE(rcu_cpu_stall_timeout);
+
+	/*
+	 * Limit check must be consistent with the Kconfig limits
+	 * for CONFIG_RCU_CPU_STALL_TIMEOUT.
+	 */
+	if (till_stall_check < 3) {
+		ACCESS_ONCE(rcu_cpu_stall_timeout) = 3;
+		till_stall_check = 3;
+	} else if (till_stall_check > 300) {
+		ACCESS_ONCE(rcu_cpu_stall_timeout) = 300;
+		till_stall_check = 300;
+	}
+	return till_stall_check * HZ + RCU_STALL_DELAY_DELTA;
+}
+
+static int rcu_panic(struct notifier_block *this, unsigned long ev, void *ptr)
+{
+	rcu_cpu_stall_suppress = 1;
+	return NOTIFY_DONE;
+}
+
+static struct notifier_block rcu_panic_block = {
+	.notifier_call = rcu_panic,
+};
+
+static int __init check_cpu_stall_init(void)
+{
+	atomic_notifier_chain_register(&panic_notifier_list, &rcu_panic_block);
+	return 0;
+}
+early_initcall(check_cpu_stall_init);
+
+#endif /* #ifdef CONFIG_RCU_STALL_COMMON */
diff --git a/kernel/rcupdate.c b/kernel/rcupdate.c
deleted file mode 100644
index c07af1c4e1bb..000000000000
--- a/kernel/rcupdate.c
+++ /dev/null
@@ -1,341 +0,0 @@
-/*
- * Read-Copy Update mechanism for mutual exclusion
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright IBM Corporation, 2001
- *
- * Authors: Dipankar Sarma <dipankar@in.ibm.com>
- *	    Manfred Spraul <manfred@colorfullife.com>
- *
- * Based on the original work by Paul McKenney <paulmck@us.ibm.com>
- * and inputs from Rusty Russell, Andrea Arcangeli and Andi Kleen.
- * Papers:
- * http://www.rdrop.com/users/paulmck/paper/rclockpdcsproof.pdf
- * http://lse.sourceforge.net/locking/rclock_OLS.2001.05.01c.sc.pdf (OLS2001)
- *
- * For detailed explanation of Read-Copy Update mechanism see -
- *		http://lse.sourceforge.net/locking/rcupdate.html
- *
- */
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/smp.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-#include <linux/atomic.h>
-#include <linux/bitops.h>
-#include <linux/percpu.h>
-#include <linux/notifier.h>
-#include <linux/cpu.h>
-#include <linux/mutex.h>
-#include <linux/export.h>
-#include <linux/hardirq.h>
-#include <linux/delay.h>
-#include <linux/module.h>
-
-#define CREATE_TRACE_POINTS
-#include <trace/events/rcu.h>
-
-#include "rcu.h"
-
-module_param(rcu_expedited, int, 0);
-
-#ifdef CONFIG_PREEMPT_RCU
-
-/*
- * Preemptible RCU implementation for rcu_read_lock().
- * Just increment ->rcu_read_lock_nesting, shared state will be updated
- * if we block.
- */
-void __rcu_read_lock(void)
-{
-	current->rcu_read_lock_nesting++;
-	barrier();  /* critical section after entry code. */
-}
-EXPORT_SYMBOL_GPL(__rcu_read_lock);
-
-/*
- * Preemptible RCU implementation for rcu_read_unlock().
- * Decrement ->rcu_read_lock_nesting.  If the result is zero (outermost
- * rcu_read_unlock()) and ->rcu_read_unlock_special is non-zero, then
- * invoke rcu_read_unlock_special() to clean up after a context switch
- * in an RCU read-side critical section and other special cases.
- */
-void __rcu_read_unlock(void)
-{
-	struct task_struct *t = current;
-
-	if (t->rcu_read_lock_nesting != 1) {
-		--t->rcu_read_lock_nesting;
-	} else {
-		barrier();  /* critical section before exit code. */
-		t->rcu_read_lock_nesting = INT_MIN;
-#ifdef CONFIG_PROVE_RCU_DELAY
-		udelay(10); /* Make preemption more probable. */
-#endif /* #ifdef CONFIG_PROVE_RCU_DELAY */
-		barrier();  /* assign before ->rcu_read_unlock_special load */
-		if (unlikely(ACCESS_ONCE(t->rcu_read_unlock_special)))
-			rcu_read_unlock_special(t);
-		barrier();  /* ->rcu_read_unlock_special load before assign */
-		t->rcu_read_lock_nesting = 0;
-	}
-#ifdef CONFIG_PROVE_LOCKING
-	{
-		int rrln = ACCESS_ONCE(t->rcu_read_lock_nesting);
-
-		WARN_ON_ONCE(rrln < 0 && rrln > INT_MIN / 2);
-	}
-#endif /* #ifdef CONFIG_PROVE_LOCKING */
-}
-EXPORT_SYMBOL_GPL(__rcu_read_unlock);
-
-#endif /* #ifdef CONFIG_PREEMPT_RCU */
-
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-static struct lock_class_key rcu_lock_key;
-struct lockdep_map rcu_lock_map =
-	STATIC_LOCKDEP_MAP_INIT("rcu_read_lock", &rcu_lock_key);
-EXPORT_SYMBOL_GPL(rcu_lock_map);
-
-static struct lock_class_key rcu_bh_lock_key;
-struct lockdep_map rcu_bh_lock_map =
-	STATIC_LOCKDEP_MAP_INIT("rcu_read_lock_bh", &rcu_bh_lock_key);
-EXPORT_SYMBOL_GPL(rcu_bh_lock_map);
-
-static struct lock_class_key rcu_sched_lock_key;
-struct lockdep_map rcu_sched_lock_map =
-	STATIC_LOCKDEP_MAP_INIT("rcu_read_lock_sched", &rcu_sched_lock_key);
-EXPORT_SYMBOL_GPL(rcu_sched_lock_map);
-
-int notrace debug_lockdep_rcu_enabled(void)
-{
-	return rcu_scheduler_active && debug_locks &&
-	       current->lockdep_recursion == 0;
-}
-EXPORT_SYMBOL_GPL(debug_lockdep_rcu_enabled);
-
-/**
- * rcu_read_lock_bh_held() - might we be in RCU-bh read-side critical section?
- *
- * Check for bottom half being disabled, which covers both the
- * CONFIG_PROVE_RCU and not cases.  Note that if someone uses
- * rcu_read_lock_bh(), but then later enables BH, lockdep (if enabled)
- * will show the situation.  This is useful for debug checks in functions
- * that require that they be called within an RCU read-side critical
- * section.
- *
- * Check debug_lockdep_rcu_enabled() to prevent false positives during boot.
- *
- * Note that rcu_read_lock() is disallowed if the CPU is either idle or
- * offline from an RCU perspective, so check for those as well.
- */
-int rcu_read_lock_bh_held(void)
-{
-	if (!debug_lockdep_rcu_enabled())
-		return 1;
-	if (!rcu_is_watching())
-		return 0;
-	if (!rcu_lockdep_current_cpu_online())
-		return 0;
-	return in_softirq() || irqs_disabled();
-}
-EXPORT_SYMBOL_GPL(rcu_read_lock_bh_held);
-
-#endif /* #ifdef CONFIG_DEBUG_LOCK_ALLOC */
-
-struct rcu_synchronize {
-	struct rcu_head head;
-	struct completion completion;
-};
-
-/*
- * Awaken the corresponding synchronize_rcu() instance now that a
- * grace period has elapsed.
- */
-static void wakeme_after_rcu(struct rcu_head  *head)
-{
-	struct rcu_synchronize *rcu;
-
-	rcu = container_of(head, struct rcu_synchronize, head);
-	complete(&rcu->completion);
-}
-
-void wait_rcu_gp(call_rcu_func_t crf)
-{
-	struct rcu_synchronize rcu;
-
-	init_rcu_head_on_stack(&rcu.head);
-	init_completion(&rcu.completion);
-	/* Will wake me after RCU finished. */
-	crf(&rcu.head, wakeme_after_rcu);
-	/* Wait for it. */
-	wait_for_completion(&rcu.completion);
-	destroy_rcu_head_on_stack(&rcu.head);
-}
-EXPORT_SYMBOL_GPL(wait_rcu_gp);
-
-#ifdef CONFIG_PROVE_RCU
-/*
- * wrapper function to avoid #include problems.
- */
-int rcu_my_thread_group_empty(void)
-{
-	return thread_group_empty(current);
-}
-EXPORT_SYMBOL_GPL(rcu_my_thread_group_empty);
-#endif /* #ifdef CONFIG_PROVE_RCU */
-
-#ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD
-static inline void debug_init_rcu_head(struct rcu_head *head)
-{
-	debug_object_init(head, &rcuhead_debug_descr);
-}
-
-static inline void debug_rcu_head_free(struct rcu_head *head)
-{
-	debug_object_free(head, &rcuhead_debug_descr);
-}
-
-/*
- * fixup_activate is called when:
- * - an active object is activated
- * - an unknown object is activated (might be a statically initialized object)
- * Activation is performed internally by call_rcu().
- */
-static int rcuhead_fixup_activate(void *addr, enum debug_obj_state state)
-{
-	struct rcu_head *head = addr;
-
-	switch (state) {
-
-	case ODEBUG_STATE_NOTAVAILABLE:
-		/*
-		 * This is not really a fixup. We just make sure that it is
-		 * tracked in the object tracker.
-		 */
-		debug_object_init(head, &rcuhead_debug_descr);
-		debug_object_activate(head, &rcuhead_debug_descr);
-		return 0;
-	default:
-		return 1;
-	}
-}
-
-/**
- * init_rcu_head_on_stack() - initialize on-stack rcu_head for debugobjects
- * @head: pointer to rcu_head structure to be initialized
- *
- * This function informs debugobjects of a new rcu_head structure that
- * has been allocated as an auto variable on the stack.  This function
- * is not required for rcu_head structures that are statically defined or
- * that are dynamically allocated on the heap.  This function has no
- * effect for !CONFIG_DEBUG_OBJECTS_RCU_HEAD kernel builds.
- */
-void init_rcu_head_on_stack(struct rcu_head *head)
-{
-	debug_object_init_on_stack(head, &rcuhead_debug_descr);
-}
-EXPORT_SYMBOL_GPL(init_rcu_head_on_stack);
-
-/**
- * destroy_rcu_head_on_stack() - destroy on-stack rcu_head for debugobjects
- * @head: pointer to rcu_head structure to be initialized
- *
- * This function informs debugobjects that an on-stack rcu_head structure
- * is about to go out of scope.  As with init_rcu_head_on_stack(), this
- * function is not required for rcu_head structures that are statically
- * defined or that are dynamically allocated on the heap.  Also as with
- * init_rcu_head_on_stack(), this function has no effect for
- * !CONFIG_DEBUG_OBJECTS_RCU_HEAD kernel builds.
- */
-void destroy_rcu_head_on_stack(struct rcu_head *head)
-{
-	debug_object_free(head, &rcuhead_debug_descr);
-}
-EXPORT_SYMBOL_GPL(destroy_rcu_head_on_stack);
-
-struct debug_obj_descr rcuhead_debug_descr = {
-	.name = "rcu_head",
-	.fixup_activate = rcuhead_fixup_activate,
-};
-EXPORT_SYMBOL_GPL(rcuhead_debug_descr);
-#endif /* #ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD */
-
-#if defined(CONFIG_TREE_RCU) || defined(CONFIG_TREE_PREEMPT_RCU) || defined(CONFIG_RCU_TRACE)
-void do_trace_rcu_torture_read(const char *rcutorturename, struct rcu_head *rhp,
-			       unsigned long secs,
-			       unsigned long c_old, unsigned long c)
-{
-	trace_rcu_torture_read(rcutorturename, rhp, secs, c_old, c);
-}
-EXPORT_SYMBOL_GPL(do_trace_rcu_torture_read);
-#else
-#define do_trace_rcu_torture_read(rcutorturename, rhp, secs, c_old, c) \
-	do { } while (0)
-#endif
-
-#ifdef CONFIG_RCU_STALL_COMMON
-
-#ifdef CONFIG_PROVE_RCU
-#define RCU_STALL_DELAY_DELTA	       (5 * HZ)
-#else
-#define RCU_STALL_DELAY_DELTA	       0
-#endif
-
-int rcu_cpu_stall_suppress __read_mostly; /* 1 = suppress stall warnings. */
-static int rcu_cpu_stall_timeout __read_mostly = CONFIG_RCU_CPU_STALL_TIMEOUT;
-
-module_param(rcu_cpu_stall_suppress, int, 0644);
-module_param(rcu_cpu_stall_timeout, int, 0644);
-
-int rcu_jiffies_till_stall_check(void)
-{
-	int till_stall_check = ACCESS_ONCE(rcu_cpu_stall_timeout);
-
-	/*
-	 * Limit check must be consistent with the Kconfig limits
-	 * for CONFIG_RCU_CPU_STALL_TIMEOUT.
-	 */
-	if (till_stall_check < 3) {
-		ACCESS_ONCE(rcu_cpu_stall_timeout) = 3;
-		till_stall_check = 3;
-	} else if (till_stall_check > 300) {
-		ACCESS_ONCE(rcu_cpu_stall_timeout) = 300;
-		till_stall_check = 300;
-	}
-	return till_stall_check * HZ + RCU_STALL_DELAY_DELTA;
-}
-
-static int rcu_panic(struct notifier_block *this, unsigned long ev, void *ptr)
-{
-	rcu_cpu_stall_suppress = 1;
-	return NOTIFY_DONE;
-}
-
-static struct notifier_block rcu_panic_block = {
-	.notifier_call = rcu_panic,
-};
-
-static int __init check_cpu_stall_init(void)
-{
-	atomic_notifier_chain_register(&panic_notifier_list, &rcu_panic_block);
-	return 0;
-}
-early_initcall(check_cpu_stall_init);
-
-#endif /* #ifdef CONFIG_RCU_STALL_COMMON */
diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c
deleted file mode 100644
index 312e9709713f..000000000000
--- a/kernel/rcutiny.c
+++ /dev/null
@@ -1,388 +0,0 @@
-/*
- * Read-Copy Update mechanism for mutual exclusion, the Bloatwatch edition.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright IBM Corporation, 2008
- *
- * Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
- *
- * For detailed explanation of Read-Copy Update mechanism see -
- *		Documentation/RCU
- */
-#include <linux/completion.h>
-#include <linux/interrupt.h>
-#include <linux/notifier.h>
-#include <linux/rcupdate.h>
-#include <linux/kernel.h>
-#include <linux/export.h>
-#include <linux/mutex.h>
-#include <linux/sched.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/time.h>
-#include <linux/cpu.h>
-#include <linux/prefetch.h>
-#include <linux/ftrace_event.h>
-
-#ifdef CONFIG_RCU_TRACE
-#include <trace/events/rcu.h>
-#endif /* #else #ifdef CONFIG_RCU_TRACE */
-
-#include "rcu.h"
-
-/* Forward declarations for rcutiny_plugin.h. */
-struct rcu_ctrlblk;
-static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp);
-static void rcu_process_callbacks(struct softirq_action *unused);
-static void __call_rcu(struct rcu_head *head,
-		       void (*func)(struct rcu_head *rcu),
-		       struct rcu_ctrlblk *rcp);
-
-static long long rcu_dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
-
-#include "rcutiny_plugin.h"
-
-/* Common code for rcu_idle_enter() and rcu_irq_exit(), see kernel/rcutree.c. */
-static void rcu_idle_enter_common(long long newval)
-{
-	if (newval) {
-		RCU_TRACE(trace_rcu_dyntick(TPS("--="),
-					    rcu_dynticks_nesting, newval));
-		rcu_dynticks_nesting = newval;
-		return;
-	}
-	RCU_TRACE(trace_rcu_dyntick(TPS("Start"),
-				    rcu_dynticks_nesting, newval));
-	if (!is_idle_task(current)) {
-		struct task_struct *idle = idle_task(smp_processor_id());
-
-		RCU_TRACE(trace_rcu_dyntick(TPS("Entry error: not idle task"),
-					    rcu_dynticks_nesting, newval));
-		ftrace_dump(DUMP_ALL);
-		WARN_ONCE(1, "Current pid: %d comm: %s / Idle pid: %d comm: %s",
-			  current->pid, current->comm,
-			  idle->pid, idle->comm); /* must be idle task! */
-	}
-	rcu_sched_qs(0); /* implies rcu_bh_qsctr_inc(0) */
-	barrier();
-	rcu_dynticks_nesting = newval;
-}
-
-/*
- * Enter idle, which is an extended quiescent state if we have fully
- * entered that mode (i.e., if the new value of dynticks_nesting is zero).
- */
-void rcu_idle_enter(void)
-{
-	unsigned long flags;
-	long long newval;
-
-	local_irq_save(flags);
-	WARN_ON_ONCE((rcu_dynticks_nesting & DYNTICK_TASK_NEST_MASK) == 0);
-	if ((rcu_dynticks_nesting & DYNTICK_TASK_NEST_MASK) ==
-	    DYNTICK_TASK_NEST_VALUE)
-		newval = 0;
-	else
-		newval = rcu_dynticks_nesting - DYNTICK_TASK_NEST_VALUE;
-	rcu_idle_enter_common(newval);
-	local_irq_restore(flags);
-}
-EXPORT_SYMBOL_GPL(rcu_idle_enter);
-
-/*
- * Exit an interrupt handler towards idle.
- */
-void rcu_irq_exit(void)
-{
-	unsigned long flags;
-	long long newval;
-
-	local_irq_save(flags);
-	newval = rcu_dynticks_nesting - 1;
-	WARN_ON_ONCE(newval < 0);
-	rcu_idle_enter_common(newval);
-	local_irq_restore(flags);
-}
-EXPORT_SYMBOL_GPL(rcu_irq_exit);
-
-/* Common code for rcu_idle_exit() and rcu_irq_enter(), see kernel/rcutree.c. */
-static void rcu_idle_exit_common(long long oldval)
-{
-	if (oldval) {
-		RCU_TRACE(trace_rcu_dyntick(TPS("++="),
-					    oldval, rcu_dynticks_nesting));
-		return;
-	}
-	RCU_TRACE(trace_rcu_dyntick(TPS("End"), oldval, rcu_dynticks_nesting));
-	if (!is_idle_task(current)) {
-		struct task_struct *idle = idle_task(smp_processor_id());
-
-		RCU_TRACE(trace_rcu_dyntick(TPS("Exit error: not idle task"),
-			  oldval, rcu_dynticks_nesting));
-		ftrace_dump(DUMP_ALL);
-		WARN_ONCE(1, "Current pid: %d comm: %s / Idle pid: %d comm: %s",
-			  current->pid, current->comm,
-			  idle->pid, idle->comm); /* must be idle task! */
-	}
-}
-
-/*
- * Exit idle, so that we are no longer in an extended quiescent state.
- */
-void rcu_idle_exit(void)
-{
-	unsigned long flags;
-	long long oldval;
-
-	local_irq_save(flags);
-	oldval = rcu_dynticks_nesting;
-	WARN_ON_ONCE(rcu_dynticks_nesting < 0);
-	if (rcu_dynticks_nesting & DYNTICK_TASK_NEST_MASK)
-		rcu_dynticks_nesting += DYNTICK_TASK_NEST_VALUE;
-	else
-		rcu_dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
-	rcu_idle_exit_common(oldval);
-	local_irq_restore(flags);
-}
-EXPORT_SYMBOL_GPL(rcu_idle_exit);
-
-/*
- * Enter an interrupt handler, moving away from idle.
- */
-void rcu_irq_enter(void)
-{
-	unsigned long flags;
-	long long oldval;
-
-	local_irq_save(flags);
-	oldval = rcu_dynticks_nesting;
-	rcu_dynticks_nesting++;
-	WARN_ON_ONCE(rcu_dynticks_nesting == 0);
-	rcu_idle_exit_common(oldval);
-	local_irq_restore(flags);
-}
-EXPORT_SYMBOL_GPL(rcu_irq_enter);
-
-#if defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE)
-
-/*
- * Test whether RCU thinks that the current CPU is idle.
- */
-bool __rcu_is_watching(void)
-{
-	return rcu_dynticks_nesting;
-}
-EXPORT_SYMBOL(__rcu_is_watching);
-
-#endif /* defined(CONFIG_DEBUG_LOCK_ALLOC) || defined(CONFIG_RCU_TRACE) */
-
-/*
- * Test whether the current CPU was interrupted from idle.  Nested
- * interrupts don't count, we must be running at the first interrupt
- * level.
- */
-static int rcu_is_cpu_rrupt_from_idle(void)
-{
-	return rcu_dynticks_nesting <= 1;
-}
-
-/*
- * Helper function for rcu_sched_qs() and rcu_bh_qs().
- * Also irqs are disabled to avoid confusion due to interrupt handlers
- * invoking call_rcu().
- */
-static int rcu_qsctr_help(struct rcu_ctrlblk *rcp)
-{
-	RCU_TRACE(reset_cpu_stall_ticks(rcp));
-	if (rcp->rcucblist != NULL &&
-	    rcp->donetail != rcp->curtail) {
-		rcp->donetail = rcp->curtail;
-		return 1;
-	}
-
-	return 0;
-}
-
-/*
- * Record an rcu quiescent state.  And an rcu_bh quiescent state while we
- * are at it, given that any rcu quiescent state is also an rcu_bh
- * quiescent state.  Use "+" instead of "||" to defeat short circuiting.
- */
-void rcu_sched_qs(int cpu)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	if (rcu_qsctr_help(&rcu_sched_ctrlblk) +
-	    rcu_qsctr_help(&rcu_bh_ctrlblk))
-		raise_softirq(RCU_SOFTIRQ);
-	local_irq_restore(flags);
-}
-
-/*
- * Record an rcu_bh quiescent state.
- */
-void rcu_bh_qs(int cpu)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	if (rcu_qsctr_help(&rcu_bh_ctrlblk))
-		raise_softirq(RCU_SOFTIRQ);
-	local_irq_restore(flags);
-}
-
-/*
- * Check to see if the scheduling-clock interrupt came from an extended
- * quiescent state, and, if so, tell RCU about it.  This function must
- * be called from hardirq context.  It is normally called from the
- * scheduling-clock interrupt.
- */
-void rcu_check_callbacks(int cpu, int user)
-{
-	RCU_TRACE(check_cpu_stalls());
-	if (user || rcu_is_cpu_rrupt_from_idle())
-		rcu_sched_qs(cpu);
-	else if (!in_softirq())
-		rcu_bh_qs(cpu);
-}
-
-/*
- * Invoke the RCU callbacks on the specified rcu_ctrlkblk structure
- * whose grace period has elapsed.
- */
-static void __rcu_process_callbacks(struct rcu_ctrlblk *rcp)
-{
-	const char *rn = NULL;
-	struct rcu_head *next, *list;
-	unsigned long flags;
-	RCU_TRACE(int cb_count = 0);
-
-	/* If no RCU callbacks ready to invoke, just return. */
-	if (&rcp->rcucblist == rcp->donetail) {
-		RCU_TRACE(trace_rcu_batch_start(rcp->name, 0, 0, -1));
-		RCU_TRACE(trace_rcu_batch_end(rcp->name, 0,
-					      !!ACCESS_ONCE(rcp->rcucblist),
-					      need_resched(),
-					      is_idle_task(current),
-					      false));
-		return;
-	}
-
-	/* Move the ready-to-invoke callbacks to a local list. */
-	local_irq_save(flags);
-	RCU_TRACE(trace_rcu_batch_start(rcp->name, 0, rcp->qlen, -1));
-	list = rcp->rcucblist;
-	rcp->rcucblist = *rcp->donetail;
-	*rcp->donetail = NULL;
-	if (rcp->curtail == rcp->donetail)
-		rcp->curtail = &rcp->rcucblist;
-	rcp->donetail = &rcp->rcucblist;
-	local_irq_restore(flags);
-
-	/* Invoke the callbacks on the local list. */
-	RCU_TRACE(rn = rcp->name);
-	while (list) {
-		next = list->next;
-		prefetch(next);
-		debug_rcu_head_unqueue(list);
-		local_bh_disable();
-		__rcu_reclaim(rn, list);
-		local_bh_enable();
-		list = next;
-		RCU_TRACE(cb_count++);
-	}
-	RCU_TRACE(rcu_trace_sub_qlen(rcp, cb_count));
-	RCU_TRACE(trace_rcu_batch_end(rcp->name,
-				      cb_count, 0, need_resched(),
-				      is_idle_task(current),
-				      false));
-}
-
-static void rcu_process_callbacks(struct softirq_action *unused)
-{
-	__rcu_process_callbacks(&rcu_sched_ctrlblk);
-	__rcu_process_callbacks(&rcu_bh_ctrlblk);
-}
-
-/*
- * Wait for a grace period to elapse.  But it is illegal to invoke
- * synchronize_sched() from within an RCU read-side critical section.
- * Therefore, any legal call to synchronize_sched() is a quiescent
- * state, and so on a UP system, synchronize_sched() need do nothing.
- * Ditto for synchronize_rcu_bh().  (But Lai Jiangshan points out the
- * benefits of doing might_sleep() to reduce latency.)
- *
- * Cool, huh?  (Due to Josh Triplett.)
- *
- * But we want to make this a static inline later.  The cond_resched()
- * currently makes this problematic.
- */
-void synchronize_sched(void)
-{
-	rcu_lockdep_assert(!lock_is_held(&rcu_bh_lock_map) &&
-			   !lock_is_held(&rcu_lock_map) &&
-			   !lock_is_held(&rcu_sched_lock_map),
-			   "Illegal synchronize_sched() in RCU read-side critical section");
-	cond_resched();
-}
-EXPORT_SYMBOL_GPL(synchronize_sched);
-
-/*
- * Helper function for call_rcu() and call_rcu_bh().
- */
-static void __call_rcu(struct rcu_head *head,
-		       void (*func)(struct rcu_head *rcu),
-		       struct rcu_ctrlblk *rcp)
-{
-	unsigned long flags;
-
-	debug_rcu_head_queue(head);
-	head->func = func;
-	head->next = NULL;
-
-	local_irq_save(flags);
-	*rcp->curtail = head;
-	rcp->curtail = &head->next;
-	RCU_TRACE(rcp->qlen++);
-	local_irq_restore(flags);
-}
-
-/*
- * Post an RCU callback to be invoked after the end of an RCU-sched grace
- * period.  But since we have but one CPU, that would be after any
- * quiescent state.
- */
-void call_rcu_sched(struct rcu_head *head, void (*func)(struct rcu_head *rcu))
-{
-	__call_rcu(head, func, &rcu_sched_ctrlblk);
-}
-EXPORT_SYMBOL_GPL(call_rcu_sched);
-
-/*
- * Post an RCU bottom-half callback to be invoked after any subsequent
- * quiescent state.
- */
-void call_rcu_bh(struct rcu_head *head, void (*func)(struct rcu_head *rcu))
-{
-	__call_rcu(head, func, &rcu_bh_ctrlblk);
-}
-EXPORT_SYMBOL_GPL(call_rcu_bh);
-
-void rcu_init(void)
-{
-	open_softirq(RCU_SOFTIRQ, rcu_process_callbacks);
-}
diff --git a/kernel/rcutiny_plugin.h b/kernel/rcutiny_plugin.h
deleted file mode 100644
index 280d06cae352..000000000000
--- a/kernel/rcutiny_plugin.h
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- * Read-Copy Update mechanism for mutual exclusion, the Bloatwatch edition
- * Internal non-public definitions that provide either classic
- * or preemptible semantics.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright (c) 2010 Linaro
- *
- * Author: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
- */
-
-#include <linux/kthread.h>
-#include <linux/module.h>
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
-
-/* Global control variables for rcupdate callback mechanism. */
-struct rcu_ctrlblk {
-	struct rcu_head *rcucblist;	/* List of pending callbacks (CBs). */
-	struct rcu_head **donetail;	/* ->next pointer of last "done" CB. */
-	struct rcu_head **curtail;	/* ->next pointer of last CB. */
-	RCU_TRACE(long qlen);		/* Number of pending CBs. */
-	RCU_TRACE(unsigned long gp_start); /* Start time for stalls. */
-	RCU_TRACE(unsigned long ticks_this_gp); /* Statistic for stalls. */
-	RCU_TRACE(unsigned long jiffies_stall); /* Jiffies at next stall. */
-	RCU_TRACE(const char *name);	/* Name of RCU type. */
-};
-
-/* Definition for rcupdate control block. */
-static struct rcu_ctrlblk rcu_sched_ctrlblk = {
-	.donetail	= &rcu_sched_ctrlblk.rcucblist,
-	.curtail	= &rcu_sched_ctrlblk.rcucblist,
-	RCU_TRACE(.name = "rcu_sched")
-};
-
-static struct rcu_ctrlblk rcu_bh_ctrlblk = {
-	.donetail	= &rcu_bh_ctrlblk.rcucblist,
-	.curtail	= &rcu_bh_ctrlblk.rcucblist,
-	RCU_TRACE(.name = "rcu_bh")
-};
-
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-#include <linux/kernel_stat.h>
-
-int rcu_scheduler_active __read_mostly;
-EXPORT_SYMBOL_GPL(rcu_scheduler_active);
-
-/*
- * During boot, we forgive RCU lockdep issues.  After this function is
- * invoked, we start taking RCU lockdep issues seriously.
- */
-void __init rcu_scheduler_starting(void)
-{
-	WARN_ON(nr_context_switches() > 0);
-	rcu_scheduler_active = 1;
-}
-
-#endif /* #ifdef CONFIG_DEBUG_LOCK_ALLOC */
-
-#ifdef CONFIG_RCU_TRACE
-
-static void rcu_trace_sub_qlen(struct rcu_ctrlblk *rcp, int n)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	rcp->qlen -= n;
-	local_irq_restore(flags);
-}
-
-/*
- * Dump statistics for TINY_RCU, such as they are.
- */
-static int show_tiny_stats(struct seq_file *m, void *unused)
-{
-	seq_printf(m, "rcu_sched: qlen: %ld\n", rcu_sched_ctrlblk.qlen);
-	seq_printf(m, "rcu_bh: qlen: %ld\n", rcu_bh_ctrlblk.qlen);
-	return 0;
-}
-
-static int show_tiny_stats_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, show_tiny_stats, NULL);
-}
-
-static const struct file_operations show_tiny_stats_fops = {
-	.owner = THIS_MODULE,
-	.open = show_tiny_stats_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
-
-static struct dentry *rcudir;
-
-static int __init rcutiny_trace_init(void)
-{
-	struct dentry *retval;
-
-	rcudir = debugfs_create_dir("rcu", NULL);
-	if (!rcudir)
-		goto free_out;
-	retval = debugfs_create_file("rcudata", 0444, rcudir,
-				     NULL, &show_tiny_stats_fops);
-	if (!retval)
-		goto free_out;
-	return 0;
-free_out:
-	debugfs_remove_recursive(rcudir);
-	return 1;
-}
-
-static void __exit rcutiny_trace_cleanup(void)
-{
-	debugfs_remove_recursive(rcudir);
-}
-
-module_init(rcutiny_trace_init);
-module_exit(rcutiny_trace_cleanup);
-
-MODULE_AUTHOR("Paul E. McKenney");
-MODULE_DESCRIPTION("Read-Copy Update tracing for tiny implementation");
-MODULE_LICENSE("GPL");
-
-static void check_cpu_stall(struct rcu_ctrlblk *rcp)
-{
-	unsigned long j;
-	unsigned long js;
-
-	if (rcu_cpu_stall_suppress)
-		return;
-	rcp->ticks_this_gp++;
-	j = jiffies;
-	js = rcp->jiffies_stall;
-	if (*rcp->curtail && ULONG_CMP_GE(j, js)) {
-		pr_err("INFO: %s stall on CPU (%lu ticks this GP) idle=%llx (t=%lu jiffies q=%ld)\n",
-		       rcp->name, rcp->ticks_this_gp, rcu_dynticks_nesting,
-		       jiffies - rcp->gp_start, rcp->qlen);
-		dump_stack();
-	}
-	if (*rcp->curtail && ULONG_CMP_GE(j, js))
-		rcp->jiffies_stall = jiffies +
-			3 * rcu_jiffies_till_stall_check() + 3;
-	else if (ULONG_CMP_GE(j, js))
-		rcp->jiffies_stall = jiffies + rcu_jiffies_till_stall_check();
-}
-
-static void reset_cpu_stall_ticks(struct rcu_ctrlblk *rcp)
-{
-	rcp->ticks_this_gp = 0;
-	rcp->gp_start = jiffies;
-	rcp->jiffies_stall = jiffies + rcu_jiffies_till_stall_check();
-}
-
-static void check_cpu_stalls(void)
-{
-	RCU_TRACE(check_cpu_stall(&rcu_bh_ctrlblk));
-	RCU_TRACE(check_cpu_stall(&rcu_sched_ctrlblk));
-}
-
-#endif /* #ifdef CONFIG_RCU_TRACE */
diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c
deleted file mode 100644
index be63101c6175..000000000000
--- a/kernel/rcutorture.c
+++ /dev/null
@@ -1,2139 +0,0 @@
-/*
- * Read-Copy Update module-based torture test facility
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright (C) IBM Corporation, 2005, 2006
- *
- * Authors: Paul E. McKenney <paulmck@us.ibm.com>
- *	  Josh Triplett <josh@freedesktop.org>
- *
- * See also:  Documentation/RCU/torture.txt
- */
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/kthread.h>
-#include <linux/err.h>
-#include <linux/spinlock.h>
-#include <linux/smp.h>
-#include <linux/rcupdate.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-#include <linux/atomic.h>
-#include <linux/bitops.h>
-#include <linux/completion.h>
-#include <linux/moduleparam.h>
-#include <linux/percpu.h>
-#include <linux/notifier.h>
-#include <linux/reboot.h>
-#include <linux/freezer.h>
-#include <linux/cpu.h>
-#include <linux/delay.h>
-#include <linux/stat.h>
-#include <linux/srcu.h>
-#include <linux/slab.h>
-#include <linux/trace_clock.h>
-#include <asm/byteorder.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Paul E. McKenney <paulmck@us.ibm.com> and Josh Triplett <josh@freedesktop.org>");
-
-static int fqs_duration;
-module_param(fqs_duration, int, 0444);
-MODULE_PARM_DESC(fqs_duration, "Duration of fqs bursts (us), 0 to disable");
-static int fqs_holdoff;
-module_param(fqs_holdoff, int, 0444);
-MODULE_PARM_DESC(fqs_holdoff, "Holdoff time within fqs bursts (us)");
-static int fqs_stutter = 3;
-module_param(fqs_stutter, int, 0444);
-MODULE_PARM_DESC(fqs_stutter, "Wait time between fqs bursts (s)");
-static bool gp_exp;
-module_param(gp_exp, bool, 0444);
-MODULE_PARM_DESC(gp_exp, "Use expedited GP wait primitives");
-static bool gp_normal;
-module_param(gp_normal, bool, 0444);
-MODULE_PARM_DESC(gp_normal, "Use normal (non-expedited) GP wait primitives");
-static int irqreader = 1;
-module_param(irqreader, int, 0444);
-MODULE_PARM_DESC(irqreader, "Allow RCU readers from irq handlers");
-static int n_barrier_cbs;
-module_param(n_barrier_cbs, int, 0444);
-MODULE_PARM_DESC(n_barrier_cbs, "# of callbacks/kthreads for barrier testing");
-static int nfakewriters = 4;
-module_param(nfakewriters, int, 0444);
-MODULE_PARM_DESC(nfakewriters, "Number of RCU fake writer threads");
-static int nreaders = -1;
-module_param(nreaders, int, 0444);
-MODULE_PARM_DESC(nreaders, "Number of RCU reader threads");
-static int object_debug;
-module_param(object_debug, int, 0444);
-MODULE_PARM_DESC(object_debug, "Enable debug-object double call_rcu() testing");
-static int onoff_holdoff;
-module_param(onoff_holdoff, int, 0444);
-MODULE_PARM_DESC(onoff_holdoff, "Time after boot before CPU hotplugs (s)");
-static int onoff_interval;
-module_param(onoff_interval, int, 0444);
-MODULE_PARM_DESC(onoff_interval, "Time between CPU hotplugs (s), 0=disable");
-static int shuffle_interval = 3;
-module_param(shuffle_interval, int, 0444);
-MODULE_PARM_DESC(shuffle_interval, "Number of seconds between shuffles");
-static int shutdown_secs;
-module_param(shutdown_secs, int, 0444);
-MODULE_PARM_DESC(shutdown_secs, "Shutdown time (s), <= zero to disable.");
-static int stall_cpu;
-module_param(stall_cpu, int, 0444);
-MODULE_PARM_DESC(stall_cpu, "Stall duration (s), zero to disable.");
-static int stall_cpu_holdoff = 10;
-module_param(stall_cpu_holdoff, int, 0444);
-MODULE_PARM_DESC(stall_cpu_holdoff, "Time to wait before starting stall (s).");
-static int stat_interval = 60;
-module_param(stat_interval, int, 0644);
-MODULE_PARM_DESC(stat_interval, "Number of seconds between stats printk()s");
-static int stutter = 5;
-module_param(stutter, int, 0444);
-MODULE_PARM_DESC(stutter, "Number of seconds to run/halt test");
-static int test_boost = 1;
-module_param(test_boost, int, 0444);
-MODULE_PARM_DESC(test_boost, "Test RCU prio boost: 0=no, 1=maybe, 2=yes.");
-static int test_boost_duration = 4;
-module_param(test_boost_duration, int, 0444);
-MODULE_PARM_DESC(test_boost_duration, "Duration of each boost test, seconds.");
-static int test_boost_interval = 7;
-module_param(test_boost_interval, int, 0444);
-MODULE_PARM_DESC(test_boost_interval, "Interval between boost tests, seconds.");
-static bool test_no_idle_hz = true;
-module_param(test_no_idle_hz, bool, 0444);
-MODULE_PARM_DESC(test_no_idle_hz, "Test support for tickless idle CPUs");
-static char *torture_type = "rcu";
-module_param(torture_type, charp, 0444);
-MODULE_PARM_DESC(torture_type, "Type of RCU to torture (rcu, rcu_bh, ...)");
-static bool verbose;
-module_param(verbose, bool, 0444);
-MODULE_PARM_DESC(verbose, "Enable verbose debugging printk()s");
-
-#define TORTURE_FLAG "-torture:"
-#define PRINTK_STRING(s) \
-	do { pr_alert("%s" TORTURE_FLAG s "\n", torture_type); } while (0)
-#define VERBOSE_PRINTK_STRING(s) \
-	do { if (verbose) pr_alert("%s" TORTURE_FLAG s "\n", torture_type); } while (0)
-#define VERBOSE_PRINTK_ERRSTRING(s) \
-	do { if (verbose) pr_alert("%s" TORTURE_FLAG "!!! " s "\n", torture_type); } while (0)
-
-static char printk_buf[4096];
-
-static int nrealreaders;
-static struct task_struct *writer_task;
-static struct task_struct **fakewriter_tasks;
-static struct task_struct **reader_tasks;
-static struct task_struct *stats_task;
-static struct task_struct *shuffler_task;
-static struct task_struct *stutter_task;
-static struct task_struct *fqs_task;
-static struct task_struct *boost_tasks[NR_CPUS];
-static struct task_struct *shutdown_task;
-#ifdef CONFIG_HOTPLUG_CPU
-static struct task_struct *onoff_task;
-#endif /* #ifdef CONFIG_HOTPLUG_CPU */
-static struct task_struct *stall_task;
-static struct task_struct **barrier_cbs_tasks;
-static struct task_struct *barrier_task;
-
-#define RCU_TORTURE_PIPE_LEN 10
-
-struct rcu_torture {
-	struct rcu_head rtort_rcu;
-	int rtort_pipe_count;
-	struct list_head rtort_free;
-	int rtort_mbtest;
-};
-
-static LIST_HEAD(rcu_torture_freelist);
-static struct rcu_torture __rcu *rcu_torture_current;
-static unsigned long rcu_torture_current_version;
-static struct rcu_torture rcu_tortures[10 * RCU_TORTURE_PIPE_LEN];
-static DEFINE_SPINLOCK(rcu_torture_lock);
-static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_count) =
-	{ 0 };
-static DEFINE_PER_CPU(long [RCU_TORTURE_PIPE_LEN + 1], rcu_torture_batch) =
-	{ 0 };
-static atomic_t rcu_torture_wcount[RCU_TORTURE_PIPE_LEN + 1];
-static atomic_t n_rcu_torture_alloc;
-static atomic_t n_rcu_torture_alloc_fail;
-static atomic_t n_rcu_torture_free;
-static atomic_t n_rcu_torture_mberror;
-static atomic_t n_rcu_torture_error;
-static long n_rcu_torture_barrier_error;
-static long n_rcu_torture_boost_ktrerror;
-static long n_rcu_torture_boost_rterror;
-static long n_rcu_torture_boost_failure;
-static long n_rcu_torture_boosts;
-static long n_rcu_torture_timers;
-static long n_offline_attempts;
-static long n_offline_successes;
-static unsigned long sum_offline;
-static int min_offline = -1;
-static int max_offline;
-static long n_online_attempts;
-static long n_online_successes;
-static unsigned long sum_online;
-static int min_online = -1;
-static int max_online;
-static long n_barrier_attempts;
-static long n_barrier_successes;
-static struct list_head rcu_torture_removed;
-static cpumask_var_t shuffle_tmp_mask;
-
-static int stutter_pause_test;
-
-#if defined(MODULE) || defined(CONFIG_RCU_TORTURE_TEST_RUNNABLE)
-#define RCUTORTURE_RUNNABLE_INIT 1
-#else
-#define RCUTORTURE_RUNNABLE_INIT 0
-#endif
-int rcutorture_runnable = RCUTORTURE_RUNNABLE_INIT;
-module_param(rcutorture_runnable, int, 0444);
-MODULE_PARM_DESC(rcutorture_runnable, "Start rcutorture at boot");
-
-#if defined(CONFIG_RCU_BOOST) && !defined(CONFIG_HOTPLUG_CPU)
-#define rcu_can_boost() 1
-#else /* #if defined(CONFIG_RCU_BOOST) && !defined(CONFIG_HOTPLUG_CPU) */
-#define rcu_can_boost() 0
-#endif /* #else #if defined(CONFIG_RCU_BOOST) && !defined(CONFIG_HOTPLUG_CPU) */
-
-#ifdef CONFIG_RCU_TRACE
-static u64 notrace rcu_trace_clock_local(void)
-{
-	u64 ts = trace_clock_local();
-	unsigned long __maybe_unused ts_rem = do_div(ts, NSEC_PER_USEC);
-	return ts;
-}
-#else /* #ifdef CONFIG_RCU_TRACE */
-static u64 notrace rcu_trace_clock_local(void)
-{
-	return 0ULL;
-}
-#endif /* #else #ifdef CONFIG_RCU_TRACE */
-
-static unsigned long shutdown_time;	/* jiffies to system shutdown. */
-static unsigned long boost_starttime;	/* jiffies of next boost test start. */
-DEFINE_MUTEX(boost_mutex);		/* protect setting boost_starttime */
-					/*  and boost task create/destroy. */
-static atomic_t barrier_cbs_count;	/* Barrier callbacks registered. */
-static bool barrier_phase;		/* Test phase. */
-static atomic_t barrier_cbs_invoked;	/* Barrier callbacks invoked. */
-static wait_queue_head_t *barrier_cbs_wq; /* Coordinate barrier testing. */
-static DECLARE_WAIT_QUEUE_HEAD(barrier_wq);
-
-/* Mediate rmmod and system shutdown.  Concurrent rmmod & shutdown illegal! */
-
-#define FULLSTOP_DONTSTOP 0	/* Normal operation. */
-#define FULLSTOP_SHUTDOWN 1	/* System shutdown with rcutorture running. */
-#define FULLSTOP_RMMOD    2	/* Normal rmmod of rcutorture. */
-static int fullstop = FULLSTOP_RMMOD;
-/*
- * Protect fullstop transitions and spawning of kthreads.
- */
-static DEFINE_MUTEX(fullstop_mutex);
-
-/* Forward reference. */
-static void rcu_torture_cleanup(void);
-
-/*
- * Detect and respond to a system shutdown.
- */
-static int
-rcutorture_shutdown_notify(struct notifier_block *unused1,
-			   unsigned long unused2, void *unused3)
-{
-	mutex_lock(&fullstop_mutex);
-	if (fullstop == FULLSTOP_DONTSTOP)
-		fullstop = FULLSTOP_SHUTDOWN;
-	else
-		pr_warn(/* but going down anyway, so... */
-		       "Concurrent 'rmmod rcutorture' and shutdown illegal!\n");
-	mutex_unlock(&fullstop_mutex);
-	return NOTIFY_DONE;
-}
-
-/*
- * Absorb kthreads into a kernel function that won't return, so that
- * they won't ever access module text or data again.
- */
-static void rcutorture_shutdown_absorb(const char *title)
-{
-	if (ACCESS_ONCE(fullstop) == FULLSTOP_SHUTDOWN) {
-		pr_notice(
-		       "rcutorture thread %s parking due to system shutdown\n",
-		       title);
-		schedule_timeout_uninterruptible(MAX_SCHEDULE_TIMEOUT);
-	}
-}
-
-/*
- * Allocate an element from the rcu_tortures pool.
- */
-static struct rcu_torture *
-rcu_torture_alloc(void)
-{
-	struct list_head *p;
-
-	spin_lock_bh(&rcu_torture_lock);
-	if (list_empty(&rcu_torture_freelist)) {
-		atomic_inc(&n_rcu_torture_alloc_fail);
-		spin_unlock_bh(&rcu_torture_lock);
-		return NULL;
-	}
-	atomic_inc(&n_rcu_torture_alloc);
-	p = rcu_torture_freelist.next;
-	list_del_init(p);
-	spin_unlock_bh(&rcu_torture_lock);
-	return container_of(p, struct rcu_torture, rtort_free);
-}
-
-/*
- * Free an element to the rcu_tortures pool.
- */
-static void
-rcu_torture_free(struct rcu_torture *p)
-{
-	atomic_inc(&n_rcu_torture_free);
-	spin_lock_bh(&rcu_torture_lock);
-	list_add_tail(&p->rtort_free, &rcu_torture_freelist);
-	spin_unlock_bh(&rcu_torture_lock);
-}
-
-struct rcu_random_state {
-	unsigned long rrs_state;
-	long rrs_count;
-};
-
-#define RCU_RANDOM_MULT 39916801  /* prime */
-#define RCU_RANDOM_ADD	479001701 /* prime */
-#define RCU_RANDOM_REFRESH 10000
-
-#define DEFINE_RCU_RANDOM(name) struct rcu_random_state name = { 0, 0 }
-
-/*
- * Crude but fast random-number generator.  Uses a linear congruential
- * generator, with occasional help from cpu_clock().
- */
-static unsigned long
-rcu_random(struct rcu_random_state *rrsp)
-{
-	if (--rrsp->rrs_count < 0) {
-		rrsp->rrs_state += (unsigned long)local_clock();
-		rrsp->rrs_count = RCU_RANDOM_REFRESH;
-	}
-	rrsp->rrs_state = rrsp->rrs_state * RCU_RANDOM_MULT + RCU_RANDOM_ADD;
-	return swahw32(rrsp->rrs_state);
-}
-
-static void
-rcu_stutter_wait(const char *title)
-{
-	while (stutter_pause_test || !rcutorture_runnable) {
-		if (rcutorture_runnable)
-			schedule_timeout_interruptible(1);
-		else
-			schedule_timeout_interruptible(round_jiffies_relative(HZ));
-		rcutorture_shutdown_absorb(title);
-	}
-}
-
-/*
- * Operations vector for selecting different types of tests.
- */
-
-struct rcu_torture_ops {
-	void (*init)(void);
-	int (*readlock)(void);
-	void (*read_delay)(struct rcu_random_state *rrsp);
-	void (*readunlock)(int idx);
-	int (*completed)(void);
-	void (*deferred_free)(struct rcu_torture *p);
-	void (*sync)(void);
-	void (*exp_sync)(void);
-	void (*call)(struct rcu_head *head, void (*func)(struct rcu_head *rcu));
-	void (*cb_barrier)(void);
-	void (*fqs)(void);
-	int (*stats)(char *page);
-	int irq_capable;
-	int can_boost;
-	const char *name;
-};
-
-static struct rcu_torture_ops *cur_ops;
-
-/*
- * Definitions for rcu torture testing.
- */
-
-static int rcu_torture_read_lock(void) __acquires(RCU)
-{
-	rcu_read_lock();
-	return 0;
-}
-
-static void rcu_read_delay(struct rcu_random_state *rrsp)
-{
-	const unsigned long shortdelay_us = 200;
-	const unsigned long longdelay_ms = 50;
-
-	/* We want a short delay sometimes to make a reader delay the grace
-	 * period, and we want a long delay occasionally to trigger
-	 * force_quiescent_state. */
-
-	if (!(rcu_random(rrsp) % (nrealreaders * 2000 * longdelay_ms)))
-		mdelay(longdelay_ms);
-	if (!(rcu_random(rrsp) % (nrealreaders * 2 * shortdelay_us)))
-		udelay(shortdelay_us);
-#ifdef CONFIG_PREEMPT
-	if (!preempt_count() && !(rcu_random(rrsp) % (nrealreaders * 20000)))
-		preempt_schedule();  /* No QS if preempt_disable() in effect */
-#endif
-}
-
-static void rcu_torture_read_unlock(int idx) __releases(RCU)
-{
-	rcu_read_unlock();
-}
-
-static int rcu_torture_completed(void)
-{
-	return rcu_batches_completed();
-}
-
-static void
-rcu_torture_cb(struct rcu_head *p)
-{
-	int i;
-	struct rcu_torture *rp = container_of(p, struct rcu_torture, rtort_rcu);
-
-	if (fullstop != FULLSTOP_DONTSTOP) {
-		/* Test is ending, just drop callbacks on the floor. */
-		/* The next initialization will pick up the pieces. */
-		return;
-	}
-	i = rp->rtort_pipe_count;
-	if (i > RCU_TORTURE_PIPE_LEN)
-		i = RCU_TORTURE_PIPE_LEN;
-	atomic_inc(&rcu_torture_wcount[i]);
-	if (++rp->rtort_pipe_count >= RCU_TORTURE_PIPE_LEN) {
-		rp->rtort_mbtest = 0;
-		rcu_torture_free(rp);
-	} else {
-		cur_ops->deferred_free(rp);
-	}
-}
-
-static int rcu_no_completed(void)
-{
-	return 0;
-}
-
-static void rcu_torture_deferred_free(struct rcu_torture *p)
-{
-	call_rcu(&p->rtort_rcu, rcu_torture_cb);
-}
-
-static void rcu_sync_torture_init(void)
-{
-	INIT_LIST_HEAD(&rcu_torture_removed);
-}
-
-static struct rcu_torture_ops rcu_ops = {
-	.init		= rcu_sync_torture_init,
-	.readlock	= rcu_torture_read_lock,
-	.read_delay	= rcu_read_delay,
-	.readunlock	= rcu_torture_read_unlock,
-	.completed	= rcu_torture_completed,
-	.deferred_free	= rcu_torture_deferred_free,
-	.sync		= synchronize_rcu,
-	.exp_sync	= synchronize_rcu_expedited,
-	.call		= call_rcu,
-	.cb_barrier	= rcu_barrier,
-	.fqs		= rcu_force_quiescent_state,
-	.stats		= NULL,
-	.irq_capable	= 1,
-	.can_boost	= rcu_can_boost(),
-	.name		= "rcu"
-};
-
-/*
- * Definitions for rcu_bh torture testing.
- */
-
-static int rcu_bh_torture_read_lock(void) __acquires(RCU_BH)
-{
-	rcu_read_lock_bh();
-	return 0;
-}
-
-static void rcu_bh_torture_read_unlock(int idx) __releases(RCU_BH)
-{
-	rcu_read_unlock_bh();
-}
-
-static int rcu_bh_torture_completed(void)
-{
-	return rcu_batches_completed_bh();
-}
-
-static void rcu_bh_torture_deferred_free(struct rcu_torture *p)
-{
-	call_rcu_bh(&p->rtort_rcu, rcu_torture_cb);
-}
-
-static struct rcu_torture_ops rcu_bh_ops = {
-	.init		= rcu_sync_torture_init,
-	.readlock	= rcu_bh_torture_read_lock,
-	.read_delay	= rcu_read_delay,  /* just reuse rcu's version. */
-	.readunlock	= rcu_bh_torture_read_unlock,
-	.completed	= rcu_bh_torture_completed,
-	.deferred_free	= rcu_bh_torture_deferred_free,
-	.sync		= synchronize_rcu_bh,
-	.exp_sync	= synchronize_rcu_bh_expedited,
-	.call		= call_rcu_bh,
-	.cb_barrier	= rcu_barrier_bh,
-	.fqs		= rcu_bh_force_quiescent_state,
-	.stats		= NULL,
-	.irq_capable	= 1,
-	.name		= "rcu_bh"
-};
-
-/*
- * Definitions for srcu torture testing.
- */
-
-DEFINE_STATIC_SRCU(srcu_ctl);
-
-static int srcu_torture_read_lock(void) __acquires(&srcu_ctl)
-{
-	return srcu_read_lock(&srcu_ctl);
-}
-
-static void srcu_read_delay(struct rcu_random_state *rrsp)
-{
-	long delay;
-	const long uspertick = 1000000 / HZ;
-	const long longdelay = 10;
-
-	/* We want there to be long-running readers, but not all the time. */
-
-	delay = rcu_random(rrsp) % (nrealreaders * 2 * longdelay * uspertick);
-	if (!delay)
-		schedule_timeout_interruptible(longdelay);
-	else
-		rcu_read_delay(rrsp);
-}
-
-static void srcu_torture_read_unlock(int idx) __releases(&srcu_ctl)
-{
-	srcu_read_unlock(&srcu_ctl, idx);
-}
-
-static int srcu_torture_completed(void)
-{
-	return srcu_batches_completed(&srcu_ctl);
-}
-
-static void srcu_torture_deferred_free(struct rcu_torture *rp)
-{
-	call_srcu(&srcu_ctl, &rp->rtort_rcu, rcu_torture_cb);
-}
-
-static void srcu_torture_synchronize(void)
-{
-	synchronize_srcu(&srcu_ctl);
-}
-
-static void srcu_torture_call(struct rcu_head *head,
-			      void (*func)(struct rcu_head *head))
-{
-	call_srcu(&srcu_ctl, head, func);
-}
-
-static void srcu_torture_barrier(void)
-{
-	srcu_barrier(&srcu_ctl);
-}
-
-static int srcu_torture_stats(char *page)
-{
-	int cnt = 0;
-	int cpu;
-	int idx = srcu_ctl.completed & 0x1;
-
-	cnt += sprintf(&page[cnt], "%s%s per-CPU(idx=%d):",
-		       torture_type, TORTURE_FLAG, idx);
-	for_each_possible_cpu(cpu) {
-		cnt += sprintf(&page[cnt], " %d(%lu,%lu)", cpu,
-			       per_cpu_ptr(srcu_ctl.per_cpu_ref, cpu)->c[!idx],
-			       per_cpu_ptr(srcu_ctl.per_cpu_ref, cpu)->c[idx]);
-	}
-	cnt += sprintf(&page[cnt], "\n");
-	return cnt;
-}
-
-static void srcu_torture_synchronize_expedited(void)
-{
-	synchronize_srcu_expedited(&srcu_ctl);
-}
-
-static struct rcu_torture_ops srcu_ops = {
-	.init		= rcu_sync_torture_init,
-	.readlock	= srcu_torture_read_lock,
-	.read_delay	= srcu_read_delay,
-	.readunlock	= srcu_torture_read_unlock,
-	.completed	= srcu_torture_completed,
-	.deferred_free	= srcu_torture_deferred_free,
-	.sync		= srcu_torture_synchronize,
-	.exp_sync	= srcu_torture_synchronize_expedited,
-	.call		= srcu_torture_call,
-	.cb_barrier	= srcu_torture_barrier,
-	.stats		= srcu_torture_stats,
-	.name		= "srcu"
-};
-
-/*
- * Definitions for sched torture testing.
- */
-
-static int sched_torture_read_lock(void)
-{
-	preempt_disable();
-	return 0;
-}
-
-static void sched_torture_read_unlock(int idx)
-{
-	preempt_enable();
-}
-
-static void rcu_sched_torture_deferred_free(struct rcu_torture *p)
-{
-	call_rcu_sched(&p->rtort_rcu, rcu_torture_cb);
-}
-
-static struct rcu_torture_ops sched_ops = {
-	.init		= rcu_sync_torture_init,
-	.readlock	= sched_torture_read_lock,
-	.read_delay	= rcu_read_delay,  /* just reuse rcu's version. */
-	.readunlock	= sched_torture_read_unlock,
-	.completed	= rcu_no_completed,
-	.deferred_free	= rcu_sched_torture_deferred_free,
-	.sync		= synchronize_sched,
-	.exp_sync	= synchronize_sched_expedited,
-	.call		= call_rcu_sched,
-	.cb_barrier	= rcu_barrier_sched,
-	.fqs		= rcu_sched_force_quiescent_state,
-	.stats		= NULL,
-	.irq_capable	= 1,
-	.name		= "sched"
-};
-
-/*
- * RCU torture priority-boost testing.  Runs one real-time thread per
- * CPU for moderate bursts, repeatedly registering RCU callbacks and
- * spinning waiting for them to be invoked.  If a given callback takes
- * too long to be invoked, we assume that priority inversion has occurred.
- */
-
-struct rcu_boost_inflight {
-	struct rcu_head rcu;
-	int inflight;
-};
-
-static void rcu_torture_boost_cb(struct rcu_head *head)
-{
-	struct rcu_boost_inflight *rbip =
-		container_of(head, struct rcu_boost_inflight, rcu);
-
-	smp_mb(); /* Ensure RCU-core accesses precede clearing ->inflight */
-	rbip->inflight = 0;
-}
-
-static int rcu_torture_boost(void *arg)
-{
-	unsigned long call_rcu_time;
-	unsigned long endtime;
-	unsigned long oldstarttime;
-	struct rcu_boost_inflight rbi = { .inflight = 0 };
-	struct sched_param sp;
-
-	VERBOSE_PRINTK_STRING("rcu_torture_boost started");
-
-	/* Set real-time priority. */
-	sp.sched_priority = 1;
-	if (sched_setscheduler(current, SCHED_FIFO, &sp) < 0) {
-		VERBOSE_PRINTK_STRING("rcu_torture_boost RT prio failed!");
-		n_rcu_torture_boost_rterror++;
-	}
-
-	init_rcu_head_on_stack(&rbi.rcu);
-	/* Each pass through the following loop does one boost-test cycle. */
-	do {
-		/* Wait for the next test interval. */
-		oldstarttime = boost_starttime;
-		while (ULONG_CMP_LT(jiffies, oldstarttime)) {
-			schedule_timeout_interruptible(oldstarttime - jiffies);
-			rcu_stutter_wait("rcu_torture_boost");
-			if (kthread_should_stop() ||
-			    fullstop != FULLSTOP_DONTSTOP)
-				goto checkwait;
-		}
-
-		/* Do one boost-test interval. */
-		endtime = oldstarttime + test_boost_duration * HZ;
-		call_rcu_time = jiffies;
-		while (ULONG_CMP_LT(jiffies, endtime)) {
-			/* If we don't have a callback in flight, post one. */
-			if (!rbi.inflight) {
-				smp_mb(); /* RCU core before ->inflight = 1. */
-				rbi.inflight = 1;
-				call_rcu(&rbi.rcu, rcu_torture_boost_cb);
-				if (jiffies - call_rcu_time >
-					 test_boost_duration * HZ - HZ / 2) {
-					VERBOSE_PRINTK_STRING("rcu_torture_boost boosting failed");
-					n_rcu_torture_boost_failure++;
-				}
-				call_rcu_time = jiffies;
-			}
-			cond_resched();
-			rcu_stutter_wait("rcu_torture_boost");
-			if (kthread_should_stop() ||
-			    fullstop != FULLSTOP_DONTSTOP)
-				goto checkwait;
-		}
-
-		/*
-		 * Set the start time of the next test interval.
-		 * Yes, this is vulnerable to long delays, but such
-		 * delays simply cause a false negative for the next
-		 * interval.  Besides, we are running at RT priority,
-		 * so delays should be relatively rare.
-		 */
-		while (oldstarttime == boost_starttime &&
-		       !kthread_should_stop()) {
-			if (mutex_trylock(&boost_mutex)) {
-				boost_starttime = jiffies +
-						  test_boost_interval * HZ;
-				n_rcu_torture_boosts++;
-				mutex_unlock(&boost_mutex);
-				break;
-			}
-			schedule_timeout_uninterruptible(1);
-		}
-
-		/* Go do the stutter. */
-checkwait:	rcu_stutter_wait("rcu_torture_boost");
-	} while (!kthread_should_stop() && fullstop  == FULLSTOP_DONTSTOP);
-
-	/* Clean up and exit. */
-	VERBOSE_PRINTK_STRING("rcu_torture_boost task stopping");
-	rcutorture_shutdown_absorb("rcu_torture_boost");
-	while (!kthread_should_stop() || rbi.inflight)
-		schedule_timeout_uninterruptible(1);
-	smp_mb(); /* order accesses to ->inflight before stack-frame death. */
-	destroy_rcu_head_on_stack(&rbi.rcu);
-	return 0;
-}
-
-/*
- * RCU torture force-quiescent-state kthread.  Repeatedly induces
- * bursts of calls to force_quiescent_state(), increasing the probability
- * of occurrence of some important types of race conditions.
- */
-static int
-rcu_torture_fqs(void *arg)
-{
-	unsigned long fqs_resume_time;
-	int fqs_burst_remaining;
-
-	VERBOSE_PRINTK_STRING("rcu_torture_fqs task started");
-	do {
-		fqs_resume_time = jiffies + fqs_stutter * HZ;
-		while (ULONG_CMP_LT(jiffies, fqs_resume_time) &&
-		       !kthread_should_stop()) {
-			schedule_timeout_interruptible(1);
-		}
-		fqs_burst_remaining = fqs_duration;
-		while (fqs_burst_remaining > 0 &&
-		       !kthread_should_stop()) {
-			cur_ops->fqs();
-			udelay(fqs_holdoff);
-			fqs_burst_remaining -= fqs_holdoff;
-		}
-		rcu_stutter_wait("rcu_torture_fqs");
-	} while (!kthread_should_stop() && fullstop == FULLSTOP_DONTSTOP);
-	VERBOSE_PRINTK_STRING("rcu_torture_fqs task stopping");
-	rcutorture_shutdown_absorb("rcu_torture_fqs");
-	while (!kthread_should_stop())
-		schedule_timeout_uninterruptible(1);
-	return 0;
-}
-
-/*
- * RCU torture writer kthread.  Repeatedly substitutes a new structure
- * for that pointed to by rcu_torture_current, freeing the old structure
- * after a series of grace periods (the "pipeline").
- */
-static int
-rcu_torture_writer(void *arg)
-{
-	bool exp;
-	int i;
-	struct rcu_torture *rp;
-	struct rcu_torture *rp1;
-	struct rcu_torture *old_rp;
-	static DEFINE_RCU_RANDOM(rand);
-
-	VERBOSE_PRINTK_STRING("rcu_torture_writer task started");
-	set_user_nice(current, 19);
-
-	do {
-		schedule_timeout_uninterruptible(1);
-		rp = rcu_torture_alloc();
-		if (rp == NULL)
-			continue;
-		rp->rtort_pipe_count = 0;
-		udelay(rcu_random(&rand) & 0x3ff);
-		old_rp = rcu_dereference_check(rcu_torture_current,
-					       current == writer_task);
-		rp->rtort_mbtest = 1;
-		rcu_assign_pointer(rcu_torture_current, rp);
-		smp_wmb(); /* Mods to old_rp must follow rcu_assign_pointer() */
-		if (old_rp) {
-			i = old_rp->rtort_pipe_count;
-			if (i > RCU_TORTURE_PIPE_LEN)
-				i = RCU_TORTURE_PIPE_LEN;
-			atomic_inc(&rcu_torture_wcount[i]);
-			old_rp->rtort_pipe_count++;
-			if (gp_normal == gp_exp)
-				exp = !!(rcu_random(&rand) & 0x80);
-			else
-				exp = gp_exp;
-			if (!exp) {
-				cur_ops->deferred_free(old_rp);
-			} else {
-				cur_ops->exp_sync();
-				list_add(&old_rp->rtort_free,
-					 &rcu_torture_removed);
-				list_for_each_entry_safe(rp, rp1,
-							 &rcu_torture_removed,
-							 rtort_free) {
-					i = rp->rtort_pipe_count;
-					if (i > RCU_TORTURE_PIPE_LEN)
-						i = RCU_TORTURE_PIPE_LEN;
-					atomic_inc(&rcu_torture_wcount[i]);
-					if (++rp->rtort_pipe_count >=
-					    RCU_TORTURE_PIPE_LEN) {
-						rp->rtort_mbtest = 0;
-						list_del(&rp->rtort_free);
-						rcu_torture_free(rp);
-					}
-				 }
-			}
-		}
-		rcutorture_record_progress(++rcu_torture_current_version);
-		rcu_stutter_wait("rcu_torture_writer");
-	} while (!kthread_should_stop() && fullstop == FULLSTOP_DONTSTOP);
-	VERBOSE_PRINTK_STRING("rcu_torture_writer task stopping");
-	rcutorture_shutdown_absorb("rcu_torture_writer");
-	while (!kthread_should_stop())
-		schedule_timeout_uninterruptible(1);
-	return 0;
-}
-
-/*
- * RCU torture fake writer kthread.  Repeatedly calls sync, with a random
- * delay between calls.
- */
-static int
-rcu_torture_fakewriter(void *arg)
-{
-	DEFINE_RCU_RANDOM(rand);
-
-	VERBOSE_PRINTK_STRING("rcu_torture_fakewriter task started");
-	set_user_nice(current, 19);
-
-	do {
-		schedule_timeout_uninterruptible(1 + rcu_random(&rand)%10);
-		udelay(rcu_random(&rand) & 0x3ff);
-		if (cur_ops->cb_barrier != NULL &&
-		    rcu_random(&rand) % (nfakewriters * 8) == 0) {
-			cur_ops->cb_barrier();
-		} else if (gp_normal == gp_exp) {
-			if (rcu_random(&rand) & 0x80)
-				cur_ops->sync();
-			else
-				cur_ops->exp_sync();
-		} else if (gp_normal) {
-			cur_ops->sync();
-		} else {
-			cur_ops->exp_sync();
-		}
-		rcu_stutter_wait("rcu_torture_fakewriter");
-	} while (!kthread_should_stop() && fullstop == FULLSTOP_DONTSTOP);
-
-	VERBOSE_PRINTK_STRING("rcu_torture_fakewriter task stopping");
-	rcutorture_shutdown_absorb("rcu_torture_fakewriter");
-	while (!kthread_should_stop())
-		schedule_timeout_uninterruptible(1);
-	return 0;
-}
-
-void rcutorture_trace_dump(void)
-{
-	static atomic_t beenhere = ATOMIC_INIT(0);
-
-	if (atomic_read(&beenhere))
-		return;
-	if (atomic_xchg(&beenhere, 1) != 0)
-		return;
-	ftrace_dump(DUMP_ALL);
-}
-
-/*
- * RCU torture reader from timer handler.  Dereferences rcu_torture_current,
- * incrementing the corresponding element of the pipeline array.  The
- * counter in the element should never be greater than 1, otherwise, the
- * RCU implementation is broken.
- */
-static void rcu_torture_timer(unsigned long unused)
-{
-	int idx;
-	int completed;
-	int completed_end;
-	static DEFINE_RCU_RANDOM(rand);
-	static DEFINE_SPINLOCK(rand_lock);
-	struct rcu_torture *p;
-	int pipe_count;
-	unsigned long long ts;
-
-	idx = cur_ops->readlock();
-	completed = cur_ops->completed();
-	ts = rcu_trace_clock_local();
-	p = rcu_dereference_check(rcu_torture_current,
-				  rcu_read_lock_bh_held() ||
-				  rcu_read_lock_sched_held() ||
-				  srcu_read_lock_held(&srcu_ctl));
-	if (p == NULL) {
-		/* Leave because rcu_torture_writer is not yet underway */
-		cur_ops->readunlock(idx);
-		return;
-	}
-	if (p->rtort_mbtest == 0)
-		atomic_inc(&n_rcu_torture_mberror);
-	spin_lock(&rand_lock);
-	cur_ops->read_delay(&rand);
-	n_rcu_torture_timers++;
-	spin_unlock(&rand_lock);
-	preempt_disable();
-	pipe_count = p->rtort_pipe_count;
-	if (pipe_count > RCU_TORTURE_PIPE_LEN) {
-		/* Should not happen, but... */
-		pipe_count = RCU_TORTURE_PIPE_LEN;
-	}
-	completed_end = cur_ops->completed();
-	if (pipe_count > 1) {
-		do_trace_rcu_torture_read(cur_ops->name, &p->rtort_rcu, ts,
-					  completed, completed_end);
-		rcutorture_trace_dump();
-	}
-	__this_cpu_inc(rcu_torture_count[pipe_count]);
-	completed = completed_end - completed;
-	if (completed > RCU_TORTURE_PIPE_LEN) {
-		/* Should not happen, but... */
-		completed = RCU_TORTURE_PIPE_LEN;
-	}
-	__this_cpu_inc(rcu_torture_batch[completed]);
-	preempt_enable();
-	cur_ops->readunlock(idx);
-}
-
-/*
- * RCU torture reader kthread.  Repeatedly dereferences rcu_torture_current,
- * incrementing the corresponding element of the pipeline array.  The
- * counter in the element should never be greater than 1, otherwise, the
- * RCU implementation is broken.
- */
-static int
-rcu_torture_reader(void *arg)
-{
-	int completed;
-	int completed_end;
-	int idx;
-	DEFINE_RCU_RANDOM(rand);
-	struct rcu_torture *p;
-	int pipe_count;
-	struct timer_list t;
-	unsigned long long ts;
-
-	VERBOSE_PRINTK_STRING("rcu_torture_reader task started");
-	set_user_nice(current, 19);
-	if (irqreader && cur_ops->irq_capable)
-		setup_timer_on_stack(&t, rcu_torture_timer, 0);
-
-	do {
-		if (irqreader && cur_ops->irq_capable) {
-			if (!timer_pending(&t))
-				mod_timer(&t, jiffies + 1);
-		}
-		idx = cur_ops->readlock();
-		completed = cur_ops->completed();
-		ts = rcu_trace_clock_local();
-		p = rcu_dereference_check(rcu_torture_current,
-					  rcu_read_lock_bh_held() ||
-					  rcu_read_lock_sched_held() ||
-					  srcu_read_lock_held(&srcu_ctl));
-		if (p == NULL) {
-			/* Wait for rcu_torture_writer to get underway */
-			cur_ops->readunlock(idx);
-			schedule_timeout_interruptible(HZ);
-			continue;
-		}
-		if (p->rtort_mbtest == 0)
-			atomic_inc(&n_rcu_torture_mberror);
-		cur_ops->read_delay(&rand);
-		preempt_disable();
-		pipe_count = p->rtort_pipe_count;
-		if (pipe_count > RCU_TORTURE_PIPE_LEN) {
-			/* Should not happen, but... */
-			pipe_count = RCU_TORTURE_PIPE_LEN;
-		}
-		completed_end = cur_ops->completed();
-		if (pipe_count > 1) {
-			do_trace_rcu_torture_read(cur_ops->name, &p->rtort_rcu,
-						  ts, completed, completed_end);
-			rcutorture_trace_dump();
-		}
-		__this_cpu_inc(rcu_torture_count[pipe_count]);
-		completed = completed_end - completed;
-		if (completed > RCU_TORTURE_PIPE_LEN) {
-			/* Should not happen, but... */
-			completed = RCU_TORTURE_PIPE_LEN;
-		}
-		__this_cpu_inc(rcu_torture_batch[completed]);
-		preempt_enable();
-		cur_ops->readunlock(idx);
-		schedule();
-		rcu_stutter_wait("rcu_torture_reader");
-	} while (!kthread_should_stop() && fullstop == FULLSTOP_DONTSTOP);
-	VERBOSE_PRINTK_STRING("rcu_torture_reader task stopping");
-	rcutorture_shutdown_absorb("rcu_torture_reader");
-	if (irqreader && cur_ops->irq_capable)
-		del_timer_sync(&t);
-	while (!kthread_should_stop())
-		schedule_timeout_uninterruptible(1);
-	return 0;
-}
-
-/*
- * Create an RCU-torture statistics message in the specified buffer.
- */
-static int
-rcu_torture_printk(char *page)
-{
-	int cnt = 0;
-	int cpu;
-	int i;
-	long pipesummary[RCU_TORTURE_PIPE_LEN + 1] = { 0 };
-	long batchsummary[RCU_TORTURE_PIPE_LEN + 1] = { 0 };
-
-	for_each_possible_cpu(cpu) {
-		for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
-			pipesummary[i] += per_cpu(rcu_torture_count, cpu)[i];
-			batchsummary[i] += per_cpu(rcu_torture_batch, cpu)[i];
-		}
-	}
-	for (i = RCU_TORTURE_PIPE_LEN - 1; i >= 0; i--) {
-		if (pipesummary[i] != 0)
-			break;
-	}
-	cnt += sprintf(&page[cnt], "%s%s ", torture_type, TORTURE_FLAG);
-	cnt += sprintf(&page[cnt],
-		       "rtc: %p ver: %lu tfle: %d rta: %d rtaf: %d rtf: %d ",
-		       rcu_torture_current,
-		       rcu_torture_current_version,
-		       list_empty(&rcu_torture_freelist),
-		       atomic_read(&n_rcu_torture_alloc),
-		       atomic_read(&n_rcu_torture_alloc_fail),
-		       atomic_read(&n_rcu_torture_free));
-	cnt += sprintf(&page[cnt], "rtmbe: %d rtbke: %ld rtbre: %ld ",
-		       atomic_read(&n_rcu_torture_mberror),
-		       n_rcu_torture_boost_ktrerror,
-		       n_rcu_torture_boost_rterror);
-	cnt += sprintf(&page[cnt], "rtbf: %ld rtb: %ld nt: %ld ",
-		       n_rcu_torture_boost_failure,
-		       n_rcu_torture_boosts,
-		       n_rcu_torture_timers);
-	cnt += sprintf(&page[cnt],
-		       "onoff: %ld/%ld:%ld/%ld %d,%d:%d,%d %lu:%lu (HZ=%d) ",
-		       n_online_successes, n_online_attempts,
-		       n_offline_successes, n_offline_attempts,
-		       min_online, max_online,
-		       min_offline, max_offline,
-		       sum_online, sum_offline, HZ);
-	cnt += sprintf(&page[cnt], "barrier: %ld/%ld:%ld",
-		       n_barrier_successes,
-		       n_barrier_attempts,
-		       n_rcu_torture_barrier_error);
-	cnt += sprintf(&page[cnt], "\n%s%s ", torture_type, TORTURE_FLAG);
-	if (atomic_read(&n_rcu_torture_mberror) != 0 ||
-	    n_rcu_torture_barrier_error != 0 ||
-	    n_rcu_torture_boost_ktrerror != 0 ||
-	    n_rcu_torture_boost_rterror != 0 ||
-	    n_rcu_torture_boost_failure != 0 ||
-	    i > 1) {
-		cnt += sprintf(&page[cnt], "!!! ");
-		atomic_inc(&n_rcu_torture_error);
-		WARN_ON_ONCE(1);
-	}
-	cnt += sprintf(&page[cnt], "Reader Pipe: ");
-	for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++)
-		cnt += sprintf(&page[cnt], " %ld", pipesummary[i]);
-	cnt += sprintf(&page[cnt], "\n%s%s ", torture_type, TORTURE_FLAG);
-	cnt += sprintf(&page[cnt], "Reader Batch: ");
-	for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++)
-		cnt += sprintf(&page[cnt], " %ld", batchsummary[i]);
-	cnt += sprintf(&page[cnt], "\n%s%s ", torture_type, TORTURE_FLAG);
-	cnt += sprintf(&page[cnt], "Free-Block Circulation: ");
-	for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
-		cnt += sprintf(&page[cnt], " %d",
-			       atomic_read(&rcu_torture_wcount[i]));
-	}
-	cnt += sprintf(&page[cnt], "\n");
-	if (cur_ops->stats)
-		cnt += cur_ops->stats(&page[cnt]);
-	return cnt;
-}
-
-/*
- * Print torture statistics.  Caller must ensure that there is only
- * one call to this function at a given time!!!  This is normally
- * accomplished by relying on the module system to only have one copy
- * of the module loaded, and then by giving the rcu_torture_stats
- * kthread full control (or the init/cleanup functions when rcu_torture_stats
- * thread is not running).
- */
-static void
-rcu_torture_stats_print(void)
-{
-	int cnt;
-
-	cnt = rcu_torture_printk(printk_buf);
-	pr_alert("%s", printk_buf);
-}
-
-/*
- * Periodically prints torture statistics, if periodic statistics printing
- * was specified via the stat_interval module parameter.
- *
- * No need to worry about fullstop here, since this one doesn't reference
- * volatile state or register callbacks.
- */
-static int
-rcu_torture_stats(void *arg)
-{
-	VERBOSE_PRINTK_STRING("rcu_torture_stats task started");
-	do {
-		schedule_timeout_interruptible(stat_interval * HZ);
-		rcu_torture_stats_print();
-		rcutorture_shutdown_absorb("rcu_torture_stats");
-	} while (!kthread_should_stop());
-	VERBOSE_PRINTK_STRING("rcu_torture_stats task stopping");
-	return 0;
-}
-
-static int rcu_idle_cpu;	/* Force all torture tasks off this CPU */
-
-/* Shuffle tasks such that we allow @rcu_idle_cpu to become idle. A special case
- * is when @rcu_idle_cpu = -1, when we allow the tasks to run on all CPUs.
- */
-static void rcu_torture_shuffle_tasks(void)
-{
-	int i;
-
-	cpumask_setall(shuffle_tmp_mask);
-	get_online_cpus();
-
-	/* No point in shuffling if there is only one online CPU (ex: UP) */
-	if (num_online_cpus() == 1) {
-		put_online_cpus();
-		return;
-	}
-
-	if (rcu_idle_cpu != -1)
-		cpumask_clear_cpu(rcu_idle_cpu, shuffle_tmp_mask);
-
-	set_cpus_allowed_ptr(current, shuffle_tmp_mask);
-
-	if (reader_tasks) {
-		for (i = 0; i < nrealreaders; i++)
-			if (reader_tasks[i])
-				set_cpus_allowed_ptr(reader_tasks[i],
-						     shuffle_tmp_mask);
-	}
-	if (fakewriter_tasks) {
-		for (i = 0; i < nfakewriters; i++)
-			if (fakewriter_tasks[i])
-				set_cpus_allowed_ptr(fakewriter_tasks[i],
-						     shuffle_tmp_mask);
-	}
-	if (writer_task)
-		set_cpus_allowed_ptr(writer_task, shuffle_tmp_mask);
-	if (stats_task)
-		set_cpus_allowed_ptr(stats_task, shuffle_tmp_mask);
-	if (stutter_task)
-		set_cpus_allowed_ptr(stutter_task, shuffle_tmp_mask);
-	if (fqs_task)
-		set_cpus_allowed_ptr(fqs_task, shuffle_tmp_mask);
-	if (shutdown_task)
-		set_cpus_allowed_ptr(shutdown_task, shuffle_tmp_mask);
-#ifdef CONFIG_HOTPLUG_CPU
-	if (onoff_task)
-		set_cpus_allowed_ptr(onoff_task, shuffle_tmp_mask);
-#endif /* #ifdef CONFIG_HOTPLUG_CPU */
-	if (stall_task)
-		set_cpus_allowed_ptr(stall_task, shuffle_tmp_mask);
-	if (barrier_cbs_tasks)
-		for (i = 0; i < n_barrier_cbs; i++)
-			if (barrier_cbs_tasks[i])
-				set_cpus_allowed_ptr(barrier_cbs_tasks[i],
-						     shuffle_tmp_mask);
-	if (barrier_task)
-		set_cpus_allowed_ptr(barrier_task, shuffle_tmp_mask);
-
-	if (rcu_idle_cpu == -1)
-		rcu_idle_cpu = num_online_cpus() - 1;
-	else
-		rcu_idle_cpu--;
-
-	put_online_cpus();
-}
-
-/* Shuffle tasks across CPUs, with the intent of allowing each CPU in the
- * system to become idle at a time and cut off its timer ticks. This is meant
- * to test the support for such tickless idle CPU in RCU.
- */
-static int
-rcu_torture_shuffle(void *arg)
-{
-	VERBOSE_PRINTK_STRING("rcu_torture_shuffle task started");
-	do {
-		schedule_timeout_interruptible(shuffle_interval * HZ);
-		rcu_torture_shuffle_tasks();
-		rcutorture_shutdown_absorb("rcu_torture_shuffle");
-	} while (!kthread_should_stop());
-	VERBOSE_PRINTK_STRING("rcu_torture_shuffle task stopping");
-	return 0;
-}
-
-/* Cause the rcutorture test to "stutter", starting and stopping all
- * threads periodically.
- */
-static int
-rcu_torture_stutter(void *arg)
-{
-	VERBOSE_PRINTK_STRING("rcu_torture_stutter task started");
-	do {
-		schedule_timeout_interruptible(stutter * HZ);
-		stutter_pause_test = 1;
-		if (!kthread_should_stop())
-			schedule_timeout_interruptible(stutter * HZ);
-		stutter_pause_test = 0;
-		rcutorture_shutdown_absorb("rcu_torture_stutter");
-	} while (!kthread_should_stop());
-	VERBOSE_PRINTK_STRING("rcu_torture_stutter task stopping");
-	return 0;
-}
-
-static inline void
-rcu_torture_print_module_parms(struct rcu_torture_ops *cur_ops, const char *tag)
-{
-	pr_alert("%s" TORTURE_FLAG
-		 "--- %s: nreaders=%d nfakewriters=%d "
-		 "stat_interval=%d verbose=%d test_no_idle_hz=%d "
-		 "shuffle_interval=%d stutter=%d irqreader=%d "
-		 "fqs_duration=%d fqs_holdoff=%d fqs_stutter=%d "
-		 "test_boost=%d/%d test_boost_interval=%d "
-		 "test_boost_duration=%d shutdown_secs=%d "
-		 "stall_cpu=%d stall_cpu_holdoff=%d "
-		 "n_barrier_cbs=%d "
-		 "onoff_interval=%d onoff_holdoff=%d\n",
-		 torture_type, tag, nrealreaders, nfakewriters,
-		 stat_interval, verbose, test_no_idle_hz, shuffle_interval,
-		 stutter, irqreader, fqs_duration, fqs_holdoff, fqs_stutter,
-		 test_boost, cur_ops->can_boost,
-		 test_boost_interval, test_boost_duration, shutdown_secs,
-		 stall_cpu, stall_cpu_holdoff,
-		 n_barrier_cbs,
-		 onoff_interval, onoff_holdoff);
-}
-
-static struct notifier_block rcutorture_shutdown_nb = {
-	.notifier_call = rcutorture_shutdown_notify,
-};
-
-static void rcutorture_booster_cleanup(int cpu)
-{
-	struct task_struct *t;
-
-	if (boost_tasks[cpu] == NULL)
-		return;
-	mutex_lock(&boost_mutex);
-	VERBOSE_PRINTK_STRING("Stopping rcu_torture_boost task");
-	t = boost_tasks[cpu];
-	boost_tasks[cpu] = NULL;
-	mutex_unlock(&boost_mutex);
-
-	/* This must be outside of the mutex, otherwise deadlock! */
-	kthread_stop(t);
-	boost_tasks[cpu] = NULL;
-}
-
-static int rcutorture_booster_init(int cpu)
-{
-	int retval;
-
-	if (boost_tasks[cpu] != NULL)
-		return 0;  /* Already created, nothing more to do. */
-
-	/* Don't allow time recalculation while creating a new task. */
-	mutex_lock(&boost_mutex);
-	VERBOSE_PRINTK_STRING("Creating rcu_torture_boost task");
-	boost_tasks[cpu] = kthread_create_on_node(rcu_torture_boost, NULL,
-						  cpu_to_node(cpu),
-						  "rcu_torture_boost");
-	if (IS_ERR(boost_tasks[cpu])) {
-		retval = PTR_ERR(boost_tasks[cpu]);
-		VERBOSE_PRINTK_STRING("rcu_torture_boost task create failed");
-		n_rcu_torture_boost_ktrerror++;
-		boost_tasks[cpu] = NULL;
-		mutex_unlock(&boost_mutex);
-		return retval;
-	}
-	kthread_bind(boost_tasks[cpu], cpu);
-	wake_up_process(boost_tasks[cpu]);
-	mutex_unlock(&boost_mutex);
-	return 0;
-}
-
-/*
- * Cause the rcutorture test to shutdown the system after the test has
- * run for the time specified by the shutdown_secs module parameter.
- */
-static int
-rcu_torture_shutdown(void *arg)
-{
-	long delta;
-	unsigned long jiffies_snap;
-
-	VERBOSE_PRINTK_STRING("rcu_torture_shutdown task started");
-	jiffies_snap = ACCESS_ONCE(jiffies);
-	while (ULONG_CMP_LT(jiffies_snap, shutdown_time) &&
-	       !kthread_should_stop()) {
-		delta = shutdown_time - jiffies_snap;
-		if (verbose)
-			pr_alert("%s" TORTURE_FLAG
-				 "rcu_torture_shutdown task: %lu jiffies remaining\n",
-				 torture_type, delta);
-		schedule_timeout_interruptible(delta);
-		jiffies_snap = ACCESS_ONCE(jiffies);
-	}
-	if (kthread_should_stop()) {
-		VERBOSE_PRINTK_STRING("rcu_torture_shutdown task stopping");
-		return 0;
-	}
-
-	/* OK, shut down the system. */
-
-	VERBOSE_PRINTK_STRING("rcu_torture_shutdown task shutting down system");
-	shutdown_task = NULL;	/* Avoid self-kill deadlock. */
-	rcu_torture_cleanup();	/* Get the success/failure message. */
-	kernel_power_off();	/* Shut down the system. */
-	return 0;
-}
-
-#ifdef CONFIG_HOTPLUG_CPU
-
-/*
- * Execute random CPU-hotplug operations at the interval specified
- * by the onoff_interval.
- */
-static int
-rcu_torture_onoff(void *arg)
-{
-	int cpu;
-	unsigned long delta;
-	int maxcpu = -1;
-	DEFINE_RCU_RANDOM(rand);
-	int ret;
-	unsigned long starttime;
-
-	VERBOSE_PRINTK_STRING("rcu_torture_onoff task started");
-	for_each_online_cpu(cpu)
-		maxcpu = cpu;
-	WARN_ON(maxcpu < 0);
-	if (onoff_holdoff > 0) {
-		VERBOSE_PRINTK_STRING("rcu_torture_onoff begin holdoff");
-		schedule_timeout_interruptible(onoff_holdoff * HZ);
-		VERBOSE_PRINTK_STRING("rcu_torture_onoff end holdoff");
-	}
-	while (!kthread_should_stop()) {
-		cpu = (rcu_random(&rand) >> 4) % (maxcpu + 1);
-		if (cpu_online(cpu) && cpu_is_hotpluggable(cpu)) {
-			if (verbose)
-				pr_alert("%s" TORTURE_FLAG
-					 "rcu_torture_onoff task: offlining %d\n",
-					 torture_type, cpu);
-			starttime = jiffies;
-			n_offline_attempts++;
-			ret = cpu_down(cpu);
-			if (ret) {
-				if (verbose)
-					pr_alert("%s" TORTURE_FLAG
-						 "rcu_torture_onoff task: offline %d failed: errno %d\n",
-						 torture_type, cpu, ret);
-			} else {
-				if (verbose)
-					pr_alert("%s" TORTURE_FLAG
-						 "rcu_torture_onoff task: offlined %d\n",
-						 torture_type, cpu);
-				n_offline_successes++;
-				delta = jiffies - starttime;
-				sum_offline += delta;
-				if (min_offline < 0) {
-					min_offline = delta;
-					max_offline = delta;
-				}
-				if (min_offline > delta)
-					min_offline = delta;
-				if (max_offline < delta)
-					max_offline = delta;
-			}
-		} else if (cpu_is_hotpluggable(cpu)) {
-			if (verbose)
-				pr_alert("%s" TORTURE_FLAG
-					 "rcu_torture_onoff task: onlining %d\n",
-					 torture_type, cpu);
-			starttime = jiffies;
-			n_online_attempts++;
-			ret = cpu_up(cpu);
-			if (ret) {
-				if (verbose)
-					pr_alert("%s" TORTURE_FLAG
-						 "rcu_torture_onoff task: online %d failed: errno %d\n",
-						 torture_type, cpu, ret);
-			} else {
-				if (verbose)
-					pr_alert("%s" TORTURE_FLAG
-						 "rcu_torture_onoff task: onlined %d\n",
-						 torture_type, cpu);
-				n_online_successes++;
-				delta = jiffies - starttime;
-				sum_online += delta;
-				if (min_online < 0) {
-					min_online = delta;
-					max_online = delta;
-				}
-				if (min_online > delta)
-					min_online = delta;
-				if (max_online < delta)
-					max_online = delta;
-			}
-		}
-		schedule_timeout_interruptible(onoff_interval * HZ);
-	}
-	VERBOSE_PRINTK_STRING("rcu_torture_onoff task stopping");
-	return 0;
-}
-
-static int
-rcu_torture_onoff_init(void)
-{
-	int ret;
-
-	if (onoff_interval <= 0)
-		return 0;
-	onoff_task = kthread_run(rcu_torture_onoff, NULL, "rcu_torture_onoff");
-	if (IS_ERR(onoff_task)) {
-		ret = PTR_ERR(onoff_task);
-		onoff_task = NULL;
-		return ret;
-	}
-	return 0;
-}
-
-static void rcu_torture_onoff_cleanup(void)
-{
-	if (onoff_task == NULL)
-		return;
-	VERBOSE_PRINTK_STRING("Stopping rcu_torture_onoff task");
-	kthread_stop(onoff_task);
-	onoff_task = NULL;
-}
-
-#else /* #ifdef CONFIG_HOTPLUG_CPU */
-
-static int
-rcu_torture_onoff_init(void)
-{
-	return 0;
-}
-
-static void rcu_torture_onoff_cleanup(void)
-{
-}
-
-#endif /* #else #ifdef CONFIG_HOTPLUG_CPU */
-
-/*
- * CPU-stall kthread.  It waits as specified by stall_cpu_holdoff, then
- * induces a CPU stall for the time specified by stall_cpu.
- */
-static int rcu_torture_stall(void *args)
-{
-	unsigned long stop_at;
-
-	VERBOSE_PRINTK_STRING("rcu_torture_stall task started");
-	if (stall_cpu_holdoff > 0) {
-		VERBOSE_PRINTK_STRING("rcu_torture_stall begin holdoff");
-		schedule_timeout_interruptible(stall_cpu_holdoff * HZ);
-		VERBOSE_PRINTK_STRING("rcu_torture_stall end holdoff");
-	}
-	if (!kthread_should_stop()) {
-		stop_at = get_seconds() + stall_cpu;
-		/* RCU CPU stall is expected behavior in following code. */
-		pr_alert("rcu_torture_stall start.\n");
-		rcu_read_lock();
-		preempt_disable();
-		while (ULONG_CMP_LT(get_seconds(), stop_at))
-			continue;  /* Induce RCU CPU stall warning. */
-		preempt_enable();
-		rcu_read_unlock();
-		pr_alert("rcu_torture_stall end.\n");
-	}
-	rcutorture_shutdown_absorb("rcu_torture_stall");
-	while (!kthread_should_stop())
-		schedule_timeout_interruptible(10 * HZ);
-	return 0;
-}
-
-/* Spawn CPU-stall kthread, if stall_cpu specified. */
-static int __init rcu_torture_stall_init(void)
-{
-	int ret;
-
-	if (stall_cpu <= 0)
-		return 0;
-	stall_task = kthread_run(rcu_torture_stall, NULL, "rcu_torture_stall");
-	if (IS_ERR(stall_task)) {
-		ret = PTR_ERR(stall_task);
-		stall_task = NULL;
-		return ret;
-	}
-	return 0;
-}
-
-/* Clean up after the CPU-stall kthread, if one was spawned. */
-static void rcu_torture_stall_cleanup(void)
-{
-	if (stall_task == NULL)
-		return;
-	VERBOSE_PRINTK_STRING("Stopping rcu_torture_stall_task.");
-	kthread_stop(stall_task);
-	stall_task = NULL;
-}
-
-/* Callback function for RCU barrier testing. */
-void rcu_torture_barrier_cbf(struct rcu_head *rcu)
-{
-	atomic_inc(&barrier_cbs_invoked);
-}
-
-/* kthread function to register callbacks used to test RCU barriers. */
-static int rcu_torture_barrier_cbs(void *arg)
-{
-	long myid = (long)arg;
-	bool lastphase = 0;
-	struct rcu_head rcu;
-
-	init_rcu_head_on_stack(&rcu);
-	VERBOSE_PRINTK_STRING("rcu_torture_barrier_cbs task started");
-	set_user_nice(current, 19);
-	do {
-		wait_event(barrier_cbs_wq[myid],
-			   barrier_phase != lastphase ||
-			   kthread_should_stop() ||
-			   fullstop != FULLSTOP_DONTSTOP);
-		lastphase = barrier_phase;
-		smp_mb(); /* ensure barrier_phase load before ->call(). */
-		if (kthread_should_stop() || fullstop != FULLSTOP_DONTSTOP)
-			break;
-		cur_ops->call(&rcu, rcu_torture_barrier_cbf);
-		if (atomic_dec_and_test(&barrier_cbs_count))
-			wake_up(&barrier_wq);
-	} while (!kthread_should_stop() && fullstop == FULLSTOP_DONTSTOP);
-	VERBOSE_PRINTK_STRING("rcu_torture_barrier_cbs task stopping");
-	rcutorture_shutdown_absorb("rcu_torture_barrier_cbs");
-	while (!kthread_should_stop())
-		schedule_timeout_interruptible(1);
-	cur_ops->cb_barrier();
-	destroy_rcu_head_on_stack(&rcu);
-	return 0;
-}
-
-/* kthread function to drive and coordinate RCU barrier testing. */
-static int rcu_torture_barrier(void *arg)
-{
-	int i;
-
-	VERBOSE_PRINTK_STRING("rcu_torture_barrier task starting");
-	do {
-		atomic_set(&barrier_cbs_invoked, 0);
-		atomic_set(&barrier_cbs_count, n_barrier_cbs);
-		smp_mb(); /* Ensure barrier_phase after prior assignments. */
-		barrier_phase = !barrier_phase;
-		for (i = 0; i < n_barrier_cbs; i++)
-			wake_up(&barrier_cbs_wq[i]);
-		wait_event(barrier_wq,
-			   atomic_read(&barrier_cbs_count) == 0 ||
-			   kthread_should_stop() ||
-			   fullstop != FULLSTOP_DONTSTOP);
-		if (kthread_should_stop() || fullstop != FULLSTOP_DONTSTOP)
-			break;
-		n_barrier_attempts++;
-		cur_ops->cb_barrier();
-		if (atomic_read(&barrier_cbs_invoked) != n_barrier_cbs) {
-			n_rcu_torture_barrier_error++;
-			WARN_ON_ONCE(1);
-		}
-		n_barrier_successes++;
-		schedule_timeout_interruptible(HZ / 10);
-	} while (!kthread_should_stop() && fullstop == FULLSTOP_DONTSTOP);
-	VERBOSE_PRINTK_STRING("rcu_torture_barrier task stopping");
-	rcutorture_shutdown_absorb("rcu_torture_barrier");
-	while (!kthread_should_stop())
-		schedule_timeout_interruptible(1);
-	return 0;
-}
-
-/* Initialize RCU barrier testing. */
-static int rcu_torture_barrier_init(void)
-{
-	int i;
-	int ret;
-
-	if (n_barrier_cbs == 0)
-		return 0;
-	if (cur_ops->call == NULL || cur_ops->cb_barrier == NULL) {
-		pr_alert("%s" TORTURE_FLAG
-			 " Call or barrier ops missing for %s,\n",
-			 torture_type, cur_ops->name);
-		pr_alert("%s" TORTURE_FLAG
-			 " RCU barrier testing omitted from run.\n",
-			 torture_type);
-		return 0;
-	}
-	atomic_set(&barrier_cbs_count, 0);
-	atomic_set(&barrier_cbs_invoked, 0);
-	barrier_cbs_tasks =
-		kzalloc(n_barrier_cbs * sizeof(barrier_cbs_tasks[0]),
-			GFP_KERNEL);
-	barrier_cbs_wq =
-		kzalloc(n_barrier_cbs * sizeof(barrier_cbs_wq[0]),
-			GFP_KERNEL);
-	if (barrier_cbs_tasks == NULL || !barrier_cbs_wq)
-		return -ENOMEM;
-	for (i = 0; i < n_barrier_cbs; i++) {
-		init_waitqueue_head(&barrier_cbs_wq[i]);
-		barrier_cbs_tasks[i] = kthread_run(rcu_torture_barrier_cbs,
-						   (void *)(long)i,
-						   "rcu_torture_barrier_cbs");
-		if (IS_ERR(barrier_cbs_tasks[i])) {
-			ret = PTR_ERR(barrier_cbs_tasks[i]);
-			VERBOSE_PRINTK_ERRSTRING("Failed to create rcu_torture_barrier_cbs");
-			barrier_cbs_tasks[i] = NULL;
-			return ret;
-		}
-	}
-	barrier_task = kthread_run(rcu_torture_barrier, NULL,
-				   "rcu_torture_barrier");
-	if (IS_ERR(barrier_task)) {
-		ret = PTR_ERR(barrier_task);
-		VERBOSE_PRINTK_ERRSTRING("Failed to create rcu_torture_barrier");
-		barrier_task = NULL;
-	}
-	return 0;
-}
-
-/* Clean up after RCU barrier testing. */
-static void rcu_torture_barrier_cleanup(void)
-{
-	int i;
-
-	if (barrier_task != NULL) {
-		VERBOSE_PRINTK_STRING("Stopping rcu_torture_barrier task");
-		kthread_stop(barrier_task);
-		barrier_task = NULL;
-	}
-	if (barrier_cbs_tasks != NULL) {
-		for (i = 0; i < n_barrier_cbs; i++) {
-			if (barrier_cbs_tasks[i] != NULL) {
-				VERBOSE_PRINTK_STRING("Stopping rcu_torture_barrier_cbs task");
-				kthread_stop(barrier_cbs_tasks[i]);
-				barrier_cbs_tasks[i] = NULL;
-			}
-		}
-		kfree(barrier_cbs_tasks);
-		barrier_cbs_tasks = NULL;
-	}
-	if (barrier_cbs_wq != NULL) {
-		kfree(barrier_cbs_wq);
-		barrier_cbs_wq = NULL;
-	}
-}
-
-static int rcutorture_cpu_notify(struct notifier_block *self,
-				 unsigned long action, void *hcpu)
-{
-	long cpu = (long)hcpu;
-
-	switch (action) {
-	case CPU_ONLINE:
-	case CPU_DOWN_FAILED:
-		(void)rcutorture_booster_init(cpu);
-		break;
-	case CPU_DOWN_PREPARE:
-		rcutorture_booster_cleanup(cpu);
-		break;
-	default:
-		break;
-	}
-	return NOTIFY_OK;
-}
-
-static struct notifier_block rcutorture_cpu_nb = {
-	.notifier_call = rcutorture_cpu_notify,
-};
-
-static void
-rcu_torture_cleanup(void)
-{
-	int i;
-
-	mutex_lock(&fullstop_mutex);
-	rcutorture_record_test_transition();
-	if (fullstop == FULLSTOP_SHUTDOWN) {
-		pr_warn(/* but going down anyway, so... */
-		       "Concurrent 'rmmod rcutorture' and shutdown illegal!\n");
-		mutex_unlock(&fullstop_mutex);
-		schedule_timeout_uninterruptible(10);
-		if (cur_ops->cb_barrier != NULL)
-			cur_ops->cb_barrier();
-		return;
-	}
-	fullstop = FULLSTOP_RMMOD;
-	mutex_unlock(&fullstop_mutex);
-	unregister_reboot_notifier(&rcutorture_shutdown_nb);
-	rcu_torture_barrier_cleanup();
-	rcu_torture_stall_cleanup();
-	if (stutter_task) {
-		VERBOSE_PRINTK_STRING("Stopping rcu_torture_stutter task");
-		kthread_stop(stutter_task);
-	}
-	stutter_task = NULL;
-	if (shuffler_task) {
-		VERBOSE_PRINTK_STRING("Stopping rcu_torture_shuffle task");
-		kthread_stop(shuffler_task);
-		free_cpumask_var(shuffle_tmp_mask);
-	}
-	shuffler_task = NULL;
-
-	if (writer_task) {
-		VERBOSE_PRINTK_STRING("Stopping rcu_torture_writer task");
-		kthread_stop(writer_task);
-	}
-	writer_task = NULL;
-
-	if (reader_tasks) {
-		for (i = 0; i < nrealreaders; i++) {
-			if (reader_tasks[i]) {
-				VERBOSE_PRINTK_STRING(
-					"Stopping rcu_torture_reader task");
-				kthread_stop(reader_tasks[i]);
-			}
-			reader_tasks[i] = NULL;
-		}
-		kfree(reader_tasks);
-		reader_tasks = NULL;
-	}
-	rcu_torture_current = NULL;
-
-	if (fakewriter_tasks) {
-		for (i = 0; i < nfakewriters; i++) {
-			if (fakewriter_tasks[i]) {
-				VERBOSE_PRINTK_STRING(
-					"Stopping rcu_torture_fakewriter task");
-				kthread_stop(fakewriter_tasks[i]);
-			}
-			fakewriter_tasks[i] = NULL;
-		}
-		kfree(fakewriter_tasks);
-		fakewriter_tasks = NULL;
-	}
-
-	if (stats_task) {
-		VERBOSE_PRINTK_STRING("Stopping rcu_torture_stats task");
-		kthread_stop(stats_task);
-	}
-	stats_task = NULL;
-
-	if (fqs_task) {
-		VERBOSE_PRINTK_STRING("Stopping rcu_torture_fqs task");
-		kthread_stop(fqs_task);
-	}
-	fqs_task = NULL;
-	if ((test_boost == 1 && cur_ops->can_boost) ||
-	    test_boost == 2) {
-		unregister_cpu_notifier(&rcutorture_cpu_nb);
-		for_each_possible_cpu(i)
-			rcutorture_booster_cleanup(i);
-	}
-	if (shutdown_task != NULL) {
-		VERBOSE_PRINTK_STRING("Stopping rcu_torture_shutdown task");
-		kthread_stop(shutdown_task);
-	}
-	shutdown_task = NULL;
-	rcu_torture_onoff_cleanup();
-
-	/* Wait for all RCU callbacks to fire.  */
-
-	if (cur_ops->cb_barrier != NULL)
-		cur_ops->cb_barrier();
-
-	rcu_torture_stats_print();  /* -After- the stats thread is stopped! */
-
-	if (atomic_read(&n_rcu_torture_error) || n_rcu_torture_barrier_error)
-		rcu_torture_print_module_parms(cur_ops, "End of test: FAILURE");
-	else if (n_online_successes != n_online_attempts ||
-		 n_offline_successes != n_offline_attempts)
-		rcu_torture_print_module_parms(cur_ops,
-					       "End of test: RCU_HOTPLUG");
-	else
-		rcu_torture_print_module_parms(cur_ops, "End of test: SUCCESS");
-}
-
-#ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD
-static void rcu_torture_leak_cb(struct rcu_head *rhp)
-{
-}
-
-static void rcu_torture_err_cb(struct rcu_head *rhp)
-{
-	/*
-	 * This -might- happen due to race conditions, but is unlikely.
-	 * The scenario that leads to this happening is that the
-	 * first of the pair of duplicate callbacks is queued,
-	 * someone else starts a grace period that includes that
-	 * callback, then the second of the pair must wait for the
-	 * next grace period.  Unlikely, but can happen.  If it
-	 * does happen, the debug-objects subsystem won't have splatted.
-	 */
-	pr_alert("rcutorture: duplicated callback was invoked.\n");
-}
-#endif /* #ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD */
-
-/*
- * Verify that double-free causes debug-objects to complain, but only
- * if CONFIG_DEBUG_OBJECTS_RCU_HEAD=y.  Otherwise, say that the test
- * cannot be carried out.
- */
-static void rcu_test_debug_objects(void)
-{
-#ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD
-	struct rcu_head rh1;
-	struct rcu_head rh2;
-
-	init_rcu_head_on_stack(&rh1);
-	init_rcu_head_on_stack(&rh2);
-	pr_alert("rcutorture: WARN: Duplicate call_rcu() test starting.\n");
-
-	/* Try to queue the rh2 pair of callbacks for the same grace period. */
-	preempt_disable(); /* Prevent preemption from interrupting test. */
-	rcu_read_lock(); /* Make it impossible to finish a grace period. */
-	call_rcu(&rh1, rcu_torture_leak_cb); /* Start grace period. */
-	local_irq_disable(); /* Make it harder to start a new grace period. */
-	call_rcu(&rh2, rcu_torture_leak_cb);
-	call_rcu(&rh2, rcu_torture_err_cb); /* Duplicate callback. */
-	local_irq_enable();
-	rcu_read_unlock();
-	preempt_enable();
-
-	/* Wait for them all to get done so we can safely return. */
-	rcu_barrier();
-	pr_alert("rcutorture: WARN: Duplicate call_rcu() test complete.\n");
-	destroy_rcu_head_on_stack(&rh1);
-	destroy_rcu_head_on_stack(&rh2);
-#else /* #ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD */
-	pr_alert("rcutorture: !CONFIG_DEBUG_OBJECTS_RCU_HEAD, not testing duplicate call_rcu()\n");
-#endif /* #else #ifdef CONFIG_DEBUG_OBJECTS_RCU_HEAD */
-}
-
-static int __init
-rcu_torture_init(void)
-{
-	int i;
-	int cpu;
-	int firsterr = 0;
-	int retval;
-	static struct rcu_torture_ops *torture_ops[] = {
-		&rcu_ops, &rcu_bh_ops, &srcu_ops, &sched_ops,
-	};
-
-	mutex_lock(&fullstop_mutex);
-
-	/* Process args and tell the world that the torturer is on the job. */
-	for (i = 0; i < ARRAY_SIZE(torture_ops); i++) {
-		cur_ops = torture_ops[i];
-		if (strcmp(torture_type, cur_ops->name) == 0)
-			break;
-	}
-	if (i == ARRAY_SIZE(torture_ops)) {
-		pr_alert("rcu-torture: invalid torture type: \"%s\"\n",
-			 torture_type);
-		pr_alert("rcu-torture types:");
-		for (i = 0; i < ARRAY_SIZE(torture_ops); i++)
-			pr_alert(" %s", torture_ops[i]->name);
-		pr_alert("\n");
-		mutex_unlock(&fullstop_mutex);
-		return -EINVAL;
-	}
-	if (cur_ops->fqs == NULL && fqs_duration != 0) {
-		pr_alert("rcu-torture: ->fqs NULL and non-zero fqs_duration, fqs disabled.\n");
-		fqs_duration = 0;
-	}
-	if (cur_ops->init)
-		cur_ops->init(); /* no "goto unwind" prior to this point!!! */
-
-	if (nreaders >= 0)
-		nrealreaders = nreaders;
-	else
-		nrealreaders = 2 * num_online_cpus();
-	rcu_torture_print_module_parms(cur_ops, "Start of test");
-	fullstop = FULLSTOP_DONTSTOP;
-
-	/* Set up the freelist. */
-
-	INIT_LIST_HEAD(&rcu_torture_freelist);
-	for (i = 0; i < ARRAY_SIZE(rcu_tortures); i++) {
-		rcu_tortures[i].rtort_mbtest = 0;
-		list_add_tail(&rcu_tortures[i].rtort_free,
-			      &rcu_torture_freelist);
-	}
-
-	/* Initialize the statistics so that each run gets its own numbers. */
-
-	rcu_torture_current = NULL;
-	rcu_torture_current_version = 0;
-	atomic_set(&n_rcu_torture_alloc, 0);
-	atomic_set(&n_rcu_torture_alloc_fail, 0);
-	atomic_set(&n_rcu_torture_free, 0);
-	atomic_set(&n_rcu_torture_mberror, 0);
-	atomic_set(&n_rcu_torture_error, 0);
-	n_rcu_torture_barrier_error = 0;
-	n_rcu_torture_boost_ktrerror = 0;
-	n_rcu_torture_boost_rterror = 0;
-	n_rcu_torture_boost_failure = 0;
-	n_rcu_torture_boosts = 0;
-	for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++)
-		atomic_set(&rcu_torture_wcount[i], 0);
-	for_each_possible_cpu(cpu) {
-		for (i = 0; i < RCU_TORTURE_PIPE_LEN + 1; i++) {
-			per_cpu(rcu_torture_count, cpu)[i] = 0;
-			per_cpu(rcu_torture_batch, cpu)[i] = 0;
-		}
-	}
-
-	/* Start up the kthreads. */
-
-	VERBOSE_PRINTK_STRING("Creating rcu_torture_writer task");
-	writer_task = kthread_create(rcu_torture_writer, NULL,
-				     "rcu_torture_writer");
-	if (IS_ERR(writer_task)) {
-		firsterr = PTR_ERR(writer_task);
-		VERBOSE_PRINTK_ERRSTRING("Failed to create writer");
-		writer_task = NULL;
-		goto unwind;
-	}
-	wake_up_process(writer_task);
-	fakewriter_tasks = kzalloc(nfakewriters * sizeof(fakewriter_tasks[0]),
-				   GFP_KERNEL);
-	if (fakewriter_tasks == NULL) {
-		VERBOSE_PRINTK_ERRSTRING("out of memory");
-		firsterr = -ENOMEM;
-		goto unwind;
-	}
-	for (i = 0; i < nfakewriters; i++) {
-		VERBOSE_PRINTK_STRING("Creating rcu_torture_fakewriter task");
-		fakewriter_tasks[i] = kthread_run(rcu_torture_fakewriter, NULL,
-						  "rcu_torture_fakewriter");
-		if (IS_ERR(fakewriter_tasks[i])) {
-			firsterr = PTR_ERR(fakewriter_tasks[i]);
-			VERBOSE_PRINTK_ERRSTRING("Failed to create fakewriter");
-			fakewriter_tasks[i] = NULL;
-			goto unwind;
-		}
-	}
-	reader_tasks = kzalloc(nrealreaders * sizeof(reader_tasks[0]),
-			       GFP_KERNEL);
-	if (reader_tasks == NULL) {
-		VERBOSE_PRINTK_ERRSTRING("out of memory");
-		firsterr = -ENOMEM;
-		goto unwind;
-	}
-	for (i = 0; i < nrealreaders; i++) {
-		VERBOSE_PRINTK_STRING("Creating rcu_torture_reader task");
-		reader_tasks[i] = kthread_run(rcu_torture_reader, NULL,
-					      "rcu_torture_reader");
-		if (IS_ERR(reader_tasks[i])) {
-			firsterr = PTR_ERR(reader_tasks[i]);
-			VERBOSE_PRINTK_ERRSTRING("Failed to create reader");
-			reader_tasks[i] = NULL;
-			goto unwind;
-		}
-	}
-	if (stat_interval > 0) {
-		VERBOSE_PRINTK_STRING("Creating rcu_torture_stats task");
-		stats_task = kthread_run(rcu_torture_stats, NULL,
-					"rcu_torture_stats");
-		if (IS_ERR(stats_task)) {
-			firsterr = PTR_ERR(stats_task);
-			VERBOSE_PRINTK_ERRSTRING("Failed to create stats");
-			stats_task = NULL;
-			goto unwind;
-		}
-	}
-	if (test_no_idle_hz) {
-		rcu_idle_cpu = num_online_cpus() - 1;
-
-		if (!alloc_cpumask_var(&shuffle_tmp_mask, GFP_KERNEL)) {
-			firsterr = -ENOMEM;
-			VERBOSE_PRINTK_ERRSTRING("Failed to alloc mask");
-			goto unwind;
-		}
-
-		/* Create the shuffler thread */
-		shuffler_task = kthread_run(rcu_torture_shuffle, NULL,
-					  "rcu_torture_shuffle");
-		if (IS_ERR(shuffler_task)) {
-			free_cpumask_var(shuffle_tmp_mask);
-			firsterr = PTR_ERR(shuffler_task);
-			VERBOSE_PRINTK_ERRSTRING("Failed to create shuffler");
-			shuffler_task = NULL;
-			goto unwind;
-		}
-	}
-	if (stutter < 0)
-		stutter = 0;
-	if (stutter) {
-		/* Create the stutter thread */
-		stutter_task = kthread_run(rcu_torture_stutter, NULL,
-					  "rcu_torture_stutter");
-		if (IS_ERR(stutter_task)) {
-			firsterr = PTR_ERR(stutter_task);
-			VERBOSE_PRINTK_ERRSTRING("Failed to create stutter");
-			stutter_task = NULL;
-			goto unwind;
-		}
-	}
-	if (fqs_duration < 0)
-		fqs_duration = 0;
-	if (fqs_duration) {
-		/* Create the stutter thread */
-		fqs_task = kthread_run(rcu_torture_fqs, NULL,
-				       "rcu_torture_fqs");
-		if (IS_ERR(fqs_task)) {
-			firsterr = PTR_ERR(fqs_task);
-			VERBOSE_PRINTK_ERRSTRING("Failed to create fqs");
-			fqs_task = NULL;
-			goto unwind;
-		}
-	}
-	if (test_boost_interval < 1)
-		test_boost_interval = 1;
-	if (test_boost_duration < 2)
-		test_boost_duration = 2;
-	if ((test_boost == 1 && cur_ops->can_boost) ||
-	    test_boost == 2) {
-
-		boost_starttime = jiffies + test_boost_interval * HZ;
-		register_cpu_notifier(&rcutorture_cpu_nb);
-		for_each_possible_cpu(i) {
-			if (cpu_is_offline(i))
-				continue;  /* Heuristic: CPU can go offline. */
-			retval = rcutorture_booster_init(i);
-			if (retval < 0) {
-				firsterr = retval;
-				goto unwind;
-			}
-		}
-	}
-	if (shutdown_secs > 0) {
-		shutdown_time = jiffies + shutdown_secs * HZ;
-		shutdown_task = kthread_create(rcu_torture_shutdown, NULL,
-					       "rcu_torture_shutdown");
-		if (IS_ERR(shutdown_task)) {
-			firsterr = PTR_ERR(shutdown_task);
-			VERBOSE_PRINTK_ERRSTRING("Failed to create shutdown");
-			shutdown_task = NULL;
-			goto unwind;
-		}
-		wake_up_process(shutdown_task);
-	}
-	i = rcu_torture_onoff_init();
-	if (i != 0) {
-		firsterr = i;
-		goto unwind;
-	}
-	register_reboot_notifier(&rcutorture_shutdown_nb);
-	i = rcu_torture_stall_init();
-	if (i != 0) {
-		firsterr = i;
-		goto unwind;
-	}
-	retval = rcu_torture_barrier_init();
-	if (retval != 0) {
-		firsterr = retval;
-		goto unwind;
-	}
-	if (object_debug)
-		rcu_test_debug_objects();
-	rcutorture_record_test_transition();
-	mutex_unlock(&fullstop_mutex);
-	return 0;
-
-unwind:
-	mutex_unlock(&fullstop_mutex);
-	rcu_torture_cleanup();
-	return firsterr;
-}
-
-module_init(rcu_torture_init);
-module_exit(rcu_torture_cleanup);
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
deleted file mode 100644
index 240604aa3f70..000000000000
--- a/kernel/rcutree.c
+++ /dev/null
@@ -1,3396 +0,0 @@
-/*
- * Read-Copy Update mechanism for mutual exclusion
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright IBM Corporation, 2008
- *
- * Authors: Dipankar Sarma <dipankar@in.ibm.com>
- *	    Manfred Spraul <manfred@colorfullife.com>
- *	    Paul E. McKenney <paulmck@linux.vnet.ibm.com> Hierarchical version
- *
- * Based on the original work by Paul McKenney <paulmck@us.ibm.com>
- * and inputs from Rusty Russell, Andrea Arcangeli and Andi Kleen.
- *
- * For detailed explanation of Read-Copy Update mechanism see -
- *	Documentation/RCU
- */
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/smp.h>
-#include <linux/rcupdate.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-#include <linux/nmi.h>
-#include <linux/atomic.h>
-#include <linux/bitops.h>
-#include <linux/export.h>
-#include <linux/completion.h>
-#include <linux/moduleparam.h>
-#include <linux/percpu.h>
-#include <linux/notifier.h>
-#include <linux/cpu.h>
-#include <linux/mutex.h>
-#include <linux/time.h>
-#include <linux/kernel_stat.h>
-#include <linux/wait.h>
-#include <linux/kthread.h>
-#include <linux/prefetch.h>
-#include <linux/delay.h>
-#include <linux/stop_machine.h>
-#include <linux/random.h>
-#include <linux/ftrace_event.h>
-#include <linux/suspend.h>
-
-#include "rcutree.h"
-#include <trace/events/rcu.h>
-
-#include "rcu.h"
-
-/* Data structures. */
-
-static struct lock_class_key rcu_node_class[RCU_NUM_LVLS];
-static struct lock_class_key rcu_fqs_class[RCU_NUM_LVLS];
-
-/*
- * In order to export the rcu_state name to the tracing tools, it
- * needs to be added in the __tracepoint_string section.
- * This requires defining a separate variable tp_<sname>_varname
- * that points to the string being used, and this will allow
- * the tracing userspace tools to be able to decipher the string
- * address to the matching string.
- */
-#define RCU_STATE_INITIALIZER(sname, sabbr, cr) \
-static char sname##_varname[] = #sname; \
-static const char *tp_##sname##_varname __used __tracepoint_string = sname##_varname; \
-struct rcu_state sname##_state = { \
-	.level = { &sname##_state.node[0] }, \
-	.call = cr, \
-	.fqs_state = RCU_GP_IDLE, \
-	.gpnum = 0UL - 300UL, \
-	.completed = 0UL - 300UL, \
-	.orphan_lock = __RAW_SPIN_LOCK_UNLOCKED(&sname##_state.orphan_lock), \
-	.orphan_nxttail = &sname##_state.orphan_nxtlist, \
-	.orphan_donetail = &sname##_state.orphan_donelist, \
-	.barrier_mutex = __MUTEX_INITIALIZER(sname##_state.barrier_mutex), \
-	.onoff_mutex = __MUTEX_INITIALIZER(sname##_state.onoff_mutex), \
-	.name = sname##_varname, \
-	.abbr = sabbr, \
-}; \
-DEFINE_PER_CPU(struct rcu_data, sname##_data)
-
-RCU_STATE_INITIALIZER(rcu_sched, 's', call_rcu_sched);
-RCU_STATE_INITIALIZER(rcu_bh, 'b', call_rcu_bh);
-
-static struct rcu_state *rcu_state;
-LIST_HEAD(rcu_struct_flavors);
-
-/* Increase (but not decrease) the CONFIG_RCU_FANOUT_LEAF at boot time. */
-static int rcu_fanout_leaf = CONFIG_RCU_FANOUT_LEAF;
-module_param(rcu_fanout_leaf, int, 0444);
-int rcu_num_lvls __read_mostly = RCU_NUM_LVLS;
-static int num_rcu_lvl[] = {  /* Number of rcu_nodes at specified level. */
-	NUM_RCU_LVL_0,
-	NUM_RCU_LVL_1,
-	NUM_RCU_LVL_2,
-	NUM_RCU_LVL_3,
-	NUM_RCU_LVL_4,
-};
-int rcu_num_nodes __read_mostly = NUM_RCU_NODES; /* Total # rcu_nodes in use. */
-
-/*
- * The rcu_scheduler_active variable transitions from zero to one just
- * before the first task is spawned.  So when this variable is zero, RCU
- * can assume that there is but one task, allowing RCU to (for example)
- * optimize synchronize_sched() to a simple barrier().  When this variable
- * is one, RCU must actually do all the hard work required to detect real
- * grace periods.  This variable is also used to suppress boot-time false
- * positives from lockdep-RCU error checking.
- */
-int rcu_scheduler_active __read_mostly;
-EXPORT_SYMBOL_GPL(rcu_scheduler_active);
-
-/*
- * The rcu_scheduler_fully_active variable transitions from zero to one
- * during the early_initcall() processing, which is after the scheduler
- * is capable of creating new tasks.  So RCU processing (for example,
- * creating tasks for RCU priority boosting) must be delayed until after
- * rcu_scheduler_fully_active transitions from zero to one.  We also
- * currently delay invocation of any RCU callbacks until after this point.
- *
- * It might later prove better for people registering RCU callbacks during
- * early boot to take responsibility for these callbacks, but one step at
- * a time.
- */
-static int rcu_scheduler_fully_active __read_mostly;
-
-#ifdef CONFIG_RCU_BOOST
-
-/*
- * Control variables for per-CPU and per-rcu_node kthreads.  These
- * handle all flavors of RCU.
- */
-static DEFINE_PER_CPU(struct task_struct *, rcu_cpu_kthread_task);
-DEFINE_PER_CPU(unsigned int, rcu_cpu_kthread_status);
-DEFINE_PER_CPU(unsigned int, rcu_cpu_kthread_loops);
-DEFINE_PER_CPU(char, rcu_cpu_has_work);
-
-#endif /* #ifdef CONFIG_RCU_BOOST */
-
-static void rcu_boost_kthread_setaffinity(struct rcu_node *rnp, int outgoingcpu);
-static void invoke_rcu_core(void);
-static void invoke_rcu_callbacks(struct rcu_state *rsp, struct rcu_data *rdp);
-
-/*
- * Track the rcutorture test sequence number and the update version
- * number within a given test.  The rcutorture_testseq is incremented
- * on every rcutorture module load and unload, so has an odd value
- * when a test is running.  The rcutorture_vernum is set to zero
- * when rcutorture starts and is incremented on each rcutorture update.
- * These variables enable correlating rcutorture output with the
- * RCU tracing information.
- */
-unsigned long rcutorture_testseq;
-unsigned long rcutorture_vernum;
-
-/*
- * Return true if an RCU grace period is in progress.  The ACCESS_ONCE()s
- * permit this function to be invoked without holding the root rcu_node
- * structure's ->lock, but of course results can be subject to change.
- */
-static int rcu_gp_in_progress(struct rcu_state *rsp)
-{
-	return ACCESS_ONCE(rsp->completed) != ACCESS_ONCE(rsp->gpnum);
-}
-
-/*
- * Note a quiescent state.  Because we do not need to know
- * how many quiescent states passed, just if there was at least
- * one since the start of the grace period, this just sets a flag.
- * The caller must have disabled preemption.
- */
-void rcu_sched_qs(int cpu)
-{
-	struct rcu_data *rdp = &per_cpu(rcu_sched_data, cpu);
-
-	if (rdp->passed_quiesce == 0)
-		trace_rcu_grace_period(TPS("rcu_sched"), rdp->gpnum, TPS("cpuqs"));
-	rdp->passed_quiesce = 1;
-}
-
-void rcu_bh_qs(int cpu)
-{
-	struct rcu_data *rdp = &per_cpu(rcu_bh_data, cpu);
-
-	if (rdp->passed_quiesce == 0)
-		trace_rcu_grace_period(TPS("rcu_bh"), rdp->gpnum, TPS("cpuqs"));
-	rdp->passed_quiesce = 1;
-}
-
-/*
- * Note a context switch.  This is a quiescent state for RCU-sched,
- * and requires special handling for preemptible RCU.
- * The caller must have disabled preemption.
- */
-void rcu_note_context_switch(int cpu)
-{
-	trace_rcu_utilization(TPS("Start context switch"));
-	rcu_sched_qs(cpu);
-	rcu_preempt_note_context_switch(cpu);
-	trace_rcu_utilization(TPS("End context switch"));
-}
-EXPORT_SYMBOL_GPL(rcu_note_context_switch);
-
-static DEFINE_PER_CPU(struct rcu_dynticks, rcu_dynticks) = {
-	.dynticks_nesting = DYNTICK_TASK_EXIT_IDLE,
-	.dynticks = ATOMIC_INIT(1),
-#ifdef CONFIG_NO_HZ_FULL_SYSIDLE
-	.dynticks_idle_nesting = DYNTICK_TASK_NEST_VALUE,
-	.dynticks_idle = ATOMIC_INIT(1),
-#endif /* #ifdef CONFIG_NO_HZ_FULL_SYSIDLE */
-};
-
-static long blimit = 10;	/* Maximum callbacks per rcu_do_batch. */
-static long qhimark = 10000;	/* If this many pending, ignore blimit. */
-static long qlowmark = 100;	/* Once only this many pending, use blimit. */
-
-module_param(blimit, long, 0444);
-module_param(qhimark, long, 0444);
-module_param(qlowmark, long, 0444);
-
-static ulong jiffies_till_first_fqs = ULONG_MAX;
-static ulong jiffies_till_next_fqs = ULONG_MAX;
-
-module_param(jiffies_till_first_fqs, ulong, 0644);
-module_param(jiffies_till_next_fqs, ulong, 0644);
-
-static void rcu_start_gp_advanced(struct rcu_state *rsp, struct rcu_node *rnp,
-				  struct rcu_data *rdp);
-static void force_qs_rnp(struct rcu_state *rsp,
-			 int (*f)(struct rcu_data *rsp, bool *isidle,
-				  unsigned long *maxj),
-			 bool *isidle, unsigned long *maxj);
-static void force_quiescent_state(struct rcu_state *rsp);
-static int rcu_pending(int cpu);
-
-/*
- * Return the number of RCU-sched batches processed thus far for debug & stats.
- */
-long rcu_batches_completed_sched(void)
-{
-	return rcu_sched_state.completed;
-}
-EXPORT_SYMBOL_GPL(rcu_batches_completed_sched);
-
-/*
- * Return the number of RCU BH batches processed thus far for debug & stats.
- */
-long rcu_batches_completed_bh(void)
-{
-	return rcu_bh_state.completed;
-}
-EXPORT_SYMBOL_GPL(rcu_batches_completed_bh);
-
-/*
- * Force a quiescent state for RCU BH.
- */
-void rcu_bh_force_quiescent_state(void)
-{
-	force_quiescent_state(&rcu_bh_state);
-}
-EXPORT_SYMBOL_GPL(rcu_bh_force_quiescent_state);
-
-/*
- * Record the number of times rcutorture tests have been initiated and
- * terminated.  This information allows the debugfs tracing stats to be
- * correlated to the rcutorture messages, even when the rcutorture module
- * is being repeatedly loaded and unloaded.  In other words, we cannot
- * store this state in rcutorture itself.
- */
-void rcutorture_record_test_transition(void)
-{
-	rcutorture_testseq++;
-	rcutorture_vernum = 0;
-}
-EXPORT_SYMBOL_GPL(rcutorture_record_test_transition);
-
-/*
- * Record the number of writer passes through the current rcutorture test.
- * This is also used to correlate debugfs tracing stats with the rcutorture
- * messages.
- */
-void rcutorture_record_progress(unsigned long vernum)
-{
-	rcutorture_vernum++;
-}
-EXPORT_SYMBOL_GPL(rcutorture_record_progress);
-
-/*
- * Force a quiescent state for RCU-sched.
- */
-void rcu_sched_force_quiescent_state(void)
-{
-	force_quiescent_state(&rcu_sched_state);
-}
-EXPORT_SYMBOL_GPL(rcu_sched_force_quiescent_state);
-
-/*
- * Does the CPU have callbacks ready to be invoked?
- */
-static int
-cpu_has_callbacks_ready_to_invoke(struct rcu_data *rdp)
-{
-	return &rdp->nxtlist != rdp->nxttail[RCU_DONE_TAIL] &&
-	       rdp->nxttail[RCU_DONE_TAIL] != NULL;
-}
-
-/*
- * Does the current CPU require a not-yet-started grace period?
- * The caller must have disabled interrupts to prevent races with
- * normal callback registry.
- */
-static int
-cpu_needs_another_gp(struct rcu_state *rsp, struct rcu_data *rdp)
-{
-	int i;
-
-	if (rcu_gp_in_progress(rsp))
-		return 0;  /* No, a grace period is already in progress. */
-	if (rcu_nocb_needs_gp(rsp))
-		return 1;  /* Yes, a no-CBs CPU needs one. */
-	if (!rdp->nxttail[RCU_NEXT_TAIL])
-		return 0;  /* No, this is a no-CBs (or offline) CPU. */
-	if (*rdp->nxttail[RCU_NEXT_READY_TAIL])
-		return 1;  /* Yes, this CPU has newly registered callbacks. */
-	for (i = RCU_WAIT_TAIL; i < RCU_NEXT_TAIL; i++)
-		if (rdp->nxttail[i - 1] != rdp->nxttail[i] &&
-		    ULONG_CMP_LT(ACCESS_ONCE(rsp->completed),
-				 rdp->nxtcompleted[i]))
-			return 1;  /* Yes, CBs for future grace period. */
-	return 0; /* No grace period needed. */
-}
-
-/*
- * Return the root node of the specified rcu_state structure.
- */
-static struct rcu_node *rcu_get_root(struct rcu_state *rsp)
-{
-	return &rsp->node[0];
-}
-
-/*
- * rcu_eqs_enter_common - current CPU is moving towards extended quiescent state
- *
- * If the new value of the ->dynticks_nesting counter now is zero,
- * we really have entered idle, and must do the appropriate accounting.
- * The caller must have disabled interrupts.
- */
-static void rcu_eqs_enter_common(struct rcu_dynticks *rdtp, long long oldval,
-				bool user)
-{
-	trace_rcu_dyntick(TPS("Start"), oldval, rdtp->dynticks_nesting);
-	if (!user && !is_idle_task(current)) {
-		struct task_struct *idle __maybe_unused =
-			idle_task(smp_processor_id());
-
-		trace_rcu_dyntick(TPS("Error on entry: not idle task"), oldval, 0);
-		ftrace_dump(DUMP_ORIG);
-		WARN_ONCE(1, "Current pid: %d comm: %s / Idle pid: %d comm: %s",
-			  current->pid, current->comm,
-			  idle->pid, idle->comm); /* must be idle task! */
-	}
-	rcu_prepare_for_idle(smp_processor_id());
-	/* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */
-	smp_mb__before_atomic_inc();  /* See above. */
-	atomic_inc(&rdtp->dynticks);
-	smp_mb__after_atomic_inc();  /* Force ordering with next sojourn. */
-	WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1);
-
-	/*
-	 * It is illegal to enter an extended quiescent state while
-	 * in an RCU read-side critical section.
-	 */
-	rcu_lockdep_assert(!lock_is_held(&rcu_lock_map),
-			   "Illegal idle entry in RCU read-side critical section.");
-	rcu_lockdep_assert(!lock_is_held(&rcu_bh_lock_map),
-			   "Illegal idle entry in RCU-bh read-side critical section.");
-	rcu_lockdep_assert(!lock_is_held(&rcu_sched_lock_map),
-			   "Illegal idle entry in RCU-sched read-side critical section.");
-}
-
-/*
- * Enter an RCU extended quiescent state, which can be either the
- * idle loop or adaptive-tickless usermode execution.
- */
-static void rcu_eqs_enter(bool user)
-{
-	long long oldval;
-	struct rcu_dynticks *rdtp;
-
-	rdtp = this_cpu_ptr(&rcu_dynticks);
-	oldval = rdtp->dynticks_nesting;
-	WARN_ON_ONCE((oldval & DYNTICK_TASK_NEST_MASK) == 0);
-	if ((oldval & DYNTICK_TASK_NEST_MASK) == DYNTICK_TASK_NEST_VALUE)
-		rdtp->dynticks_nesting = 0;
-	else
-		rdtp->dynticks_nesting -= DYNTICK_TASK_NEST_VALUE;
-	rcu_eqs_enter_common(rdtp, oldval, user);
-}
-
-/**
- * rcu_idle_enter - inform RCU that current CPU is entering idle
- *
- * Enter idle mode, in other words, -leave- the mode in which RCU
- * read-side critical sections can occur.  (Though RCU read-side
- * critical sections can occur in irq handlers in idle, a possibility
- * handled by irq_enter() and irq_exit().)
- *
- * We crowbar the ->dynticks_nesting field to zero to allow for
- * the possibility of usermode upcalls having messed up our count
- * of interrupt nesting level during the prior busy period.
- */
-void rcu_idle_enter(void)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	rcu_eqs_enter(false);
-	rcu_sysidle_enter(this_cpu_ptr(&rcu_dynticks), 0);
-	local_irq_restore(flags);
-}
-EXPORT_SYMBOL_GPL(rcu_idle_enter);
-
-#ifdef CONFIG_RCU_USER_QS
-/**
- * rcu_user_enter - inform RCU that we are resuming userspace.
- *
- * Enter RCU idle mode right before resuming userspace.  No use of RCU
- * is permitted between this call and rcu_user_exit(). This way the
- * CPU doesn't need to maintain the tick for RCU maintenance purposes
- * when the CPU runs in userspace.
- */
-void rcu_user_enter(void)
-{
-	rcu_eqs_enter(1);
-}
-#endif /* CONFIG_RCU_USER_QS */
-
-/**
- * rcu_irq_exit - inform RCU that current CPU is exiting irq towards idle
- *
- * Exit from an interrupt handler, which might possibly result in entering
- * idle mode, in other words, leaving the mode in which read-side critical
- * sections can occur.
- *
- * This code assumes that the idle loop never does anything that might
- * result in unbalanced calls to irq_enter() and irq_exit().  If your
- * architecture violates this assumption, RCU will give you what you
- * deserve, good and hard.  But very infrequently and irreproducibly.
- *
- * Use things like work queues to work around this limitation.
- *
- * You have been warned.
- */
-void rcu_irq_exit(void)
-{
-	unsigned long flags;
-	long long oldval;
-	struct rcu_dynticks *rdtp;
-
-	local_irq_save(flags);
-	rdtp = this_cpu_ptr(&rcu_dynticks);
-	oldval = rdtp->dynticks_nesting;
-	rdtp->dynticks_nesting--;
-	WARN_ON_ONCE(rdtp->dynticks_nesting < 0);
-	if (rdtp->dynticks_nesting)
-		trace_rcu_dyntick(TPS("--="), oldval, rdtp->dynticks_nesting);
-	else
-		rcu_eqs_enter_common(rdtp, oldval, true);
-	rcu_sysidle_enter(rdtp, 1);
-	local_irq_restore(flags);
-}
-
-/*
- * rcu_eqs_exit_common - current CPU moving away from extended quiescent state
- *
- * If the new value of the ->dynticks_nesting counter was previously zero,
- * we really have exited idle, and must do the appropriate accounting.
- * The caller must have disabled interrupts.
- */
-static void rcu_eqs_exit_common(struct rcu_dynticks *rdtp, long long oldval,
-			       int user)
-{
-	smp_mb__before_atomic_inc();  /* Force ordering w/previous sojourn. */
-	atomic_inc(&rdtp->dynticks);
-	/* CPUs seeing atomic_inc() must see later RCU read-side crit sects */
-	smp_mb__after_atomic_inc();  /* See above. */
-	WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
-	rcu_cleanup_after_idle(smp_processor_id());
-	trace_rcu_dyntick(TPS("End"), oldval, rdtp->dynticks_nesting);
-	if (!user && !is_idle_task(current)) {
-		struct task_struct *idle __maybe_unused =
-			idle_task(smp_processor_id());
-
-		trace_rcu_dyntick(TPS("Error on exit: not idle task"),
-				  oldval, rdtp->dynticks_nesting);
-		ftrace_dump(DUMP_ORIG);
-		WARN_ONCE(1, "Current pid: %d comm: %s / Idle pid: %d comm: %s",
-			  current->pid, current->comm,
-			  idle->pid, idle->comm); /* must be idle task! */
-	}
-}
-
-/*
- * Exit an RCU extended quiescent state, which can be either the
- * idle loop or adaptive-tickless usermode execution.
- */
-static void rcu_eqs_exit(bool user)
-{
-	struct rcu_dynticks *rdtp;
-	long long oldval;
-
-	rdtp = this_cpu_ptr(&rcu_dynticks);
-	oldval = rdtp->dynticks_nesting;
-	WARN_ON_ONCE(oldval < 0);
-	if (oldval & DYNTICK_TASK_NEST_MASK)
-		rdtp->dynticks_nesting += DYNTICK_TASK_NEST_VALUE;
-	else
-		rdtp->dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
-	rcu_eqs_exit_common(rdtp, oldval, user);
-}
-
-/**
- * rcu_idle_exit - inform RCU that current CPU is leaving idle
- *
- * Exit idle mode, in other words, -enter- the mode in which RCU
- * read-side critical sections can occur.
- *
- * We crowbar the ->dynticks_nesting field to DYNTICK_TASK_NEST to
- * allow for the possibility of usermode upcalls messing up our count
- * of interrupt nesting level during the busy period that is just
- * now starting.
- */
-void rcu_idle_exit(void)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	rcu_eqs_exit(false);
-	rcu_sysidle_exit(this_cpu_ptr(&rcu_dynticks), 0);
-	local_irq_restore(flags);
-}
-EXPORT_SYMBOL_GPL(rcu_idle_exit);
-
-#ifdef CONFIG_RCU_USER_QS
-/**
- * rcu_user_exit - inform RCU that we are exiting userspace.
- *
- * Exit RCU idle mode while entering the kernel because it can
- * run a RCU read side critical section anytime.
- */
-void rcu_user_exit(void)
-{
-	rcu_eqs_exit(1);
-}
-#endif /* CONFIG_RCU_USER_QS */
-
-/**
- * rcu_irq_enter - inform RCU that current CPU is entering irq away from idle
- *
- * Enter an interrupt handler, which might possibly result in exiting
- * idle mode, in other words, entering the mode in which read-side critical
- * sections can occur.
- *
- * Note that the Linux kernel is fully capable of entering an interrupt
- * handler that it never exits, for example when doing upcalls to
- * user mode!  This code assumes that the idle loop never does upcalls to
- * user mode.  If your architecture does do upcalls from the idle loop (or
- * does anything else that results in unbalanced calls to the irq_enter()
- * and irq_exit() functions), RCU will give you what you deserve, good
- * and hard.  But very infrequently and irreproducibly.
- *
- * Use things like work queues to work around this limitation.
- *
- * You have been warned.
- */
-void rcu_irq_enter(void)
-{
-	unsigned long flags;
-	struct rcu_dynticks *rdtp;
-	long long oldval;
-
-	local_irq_save(flags);
-	rdtp = this_cpu_ptr(&rcu_dynticks);
-	oldval = rdtp->dynticks_nesting;
-	rdtp->dynticks_nesting++;
-	WARN_ON_ONCE(rdtp->dynticks_nesting == 0);
-	if (oldval)
-		trace_rcu_dyntick(TPS("++="), oldval, rdtp->dynticks_nesting);
-	else
-		rcu_eqs_exit_common(rdtp, oldval, true);
-	rcu_sysidle_exit(rdtp, 1);
-	local_irq_restore(flags);
-}
-
-/**
- * rcu_nmi_enter - inform RCU of entry to NMI context
- *
- * If the CPU was idle with dynamic ticks active, and there is no
- * irq handler running, this updates rdtp->dynticks_nmi to let the
- * RCU grace-period handling know that the CPU is active.
- */
-void rcu_nmi_enter(void)
-{
-	struct rcu_dynticks *rdtp = this_cpu_ptr(&rcu_dynticks);
-
-	if (rdtp->dynticks_nmi_nesting == 0 &&
-	    (atomic_read(&rdtp->dynticks) & 0x1))
-		return;
-	rdtp->dynticks_nmi_nesting++;
-	smp_mb__before_atomic_inc();  /* Force delay from prior write. */
-	atomic_inc(&rdtp->dynticks);
-	/* CPUs seeing atomic_inc() must see later RCU read-side crit sects */
-	smp_mb__after_atomic_inc();  /* See above. */
-	WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks) & 0x1));
-}
-
-/**
- * rcu_nmi_exit - inform RCU of exit from NMI context
- *
- * If the CPU was idle with dynamic ticks active, and there is no
- * irq handler running, this updates rdtp->dynticks_nmi to let the
- * RCU grace-period handling know that the CPU is no longer active.
- */
-void rcu_nmi_exit(void)
-{
-	struct rcu_dynticks *rdtp = this_cpu_ptr(&rcu_dynticks);
-
-	if (rdtp->dynticks_nmi_nesting == 0 ||
-	    --rdtp->dynticks_nmi_nesting != 0)
-		return;
-	/* CPUs seeing atomic_inc() must see prior RCU read-side crit sects */
-	smp_mb__before_atomic_inc();  /* See above. */
-	atomic_inc(&rdtp->dynticks);
-	smp_mb__after_atomic_inc();  /* Force delay to next write. */
-	WARN_ON_ONCE(atomic_read(&rdtp->dynticks) & 0x1);
-}
-
-/**
- * __rcu_is_watching - are RCU read-side critical sections safe?
- *
- * Return true if RCU is watching the running CPU, which means that
- * this CPU can safely enter RCU read-side critical sections.  Unlike
- * rcu_is_watching(), the caller of __rcu_is_watching() must have at
- * least disabled preemption.
- */
-bool __rcu_is_watching(void)
-{
-	return atomic_read(this_cpu_ptr(&rcu_dynticks.dynticks)) & 0x1;
-}
-
-/**
- * rcu_is_watching - see if RCU thinks that the current CPU is idle
- *
- * If the current CPU is in its idle loop and is neither in an interrupt
- * or NMI handler, return true.
- */
-bool rcu_is_watching(void)
-{
-	int ret;
-
-	preempt_disable();
-	ret = __rcu_is_watching();
-	preempt_enable();
-	return ret;
-}
-EXPORT_SYMBOL_GPL(rcu_is_watching);
-
-#if defined(CONFIG_PROVE_RCU) && defined(CONFIG_HOTPLUG_CPU)
-
-/*
- * Is the current CPU online?  Disable preemption to avoid false positives
- * that could otherwise happen due to the current CPU number being sampled,
- * this task being preempted, its old CPU being taken offline, resuming
- * on some other CPU, then determining that its old CPU is now offline.
- * It is OK to use RCU on an offline processor during initial boot, hence
- * the check for rcu_scheduler_fully_active.  Note also that it is OK
- * for a CPU coming online to use RCU for one jiffy prior to marking itself
- * online in the cpu_online_mask.  Similarly, it is OK for a CPU going
- * offline to continue to use RCU for one jiffy after marking itself
- * offline in the cpu_online_mask.  This leniency is necessary given the
- * non-atomic nature of the online and offline processing, for example,
- * the fact that a CPU enters the scheduler after completing the CPU_DYING
- * notifiers.
- *
- * This is also why RCU internally marks CPUs online during the
- * CPU_UP_PREPARE phase and offline during the CPU_DEAD phase.
- *
- * Disable checking if in an NMI handler because we cannot safely report
- * errors from NMI handlers anyway.
- */
-bool rcu_lockdep_current_cpu_online(void)
-{
-	struct rcu_data *rdp;
-	struct rcu_node *rnp;
-	bool ret;
-
-	if (in_nmi())
-		return 1;
-	preempt_disable();
-	rdp = this_cpu_ptr(&rcu_sched_data);
-	rnp = rdp->mynode;
-	ret = (rdp->grpmask & rnp->qsmaskinit) ||
-	      !rcu_scheduler_fully_active;
-	preempt_enable();
-	return ret;
-}
-EXPORT_SYMBOL_GPL(rcu_lockdep_current_cpu_online);
-
-#endif /* #if defined(CONFIG_PROVE_RCU) && defined(CONFIG_HOTPLUG_CPU) */
-
-/**
- * rcu_is_cpu_rrupt_from_idle - see if idle or immediately interrupted from idle
- *
- * If the current CPU is idle or running at a first-level (not nested)
- * interrupt from idle, return true.  The caller must have at least
- * disabled preemption.
- */
-static int rcu_is_cpu_rrupt_from_idle(void)
-{
-	return __this_cpu_read(rcu_dynticks.dynticks_nesting) <= 1;
-}
-
-/*
- * Snapshot the specified CPU's dynticks counter so that we can later
- * credit them with an implicit quiescent state.  Return 1 if this CPU
- * is in dynticks idle mode, which is an extended quiescent state.
- */
-static int dyntick_save_progress_counter(struct rcu_data *rdp,
-					 bool *isidle, unsigned long *maxj)
-{
-	rdp->dynticks_snap = atomic_add_return(0, &rdp->dynticks->dynticks);
-	rcu_sysidle_check_cpu(rdp, isidle, maxj);
-	return (rdp->dynticks_snap & 0x1) == 0;
-}
-
-/*
- * Return true if the specified CPU has passed through a quiescent
- * state by virtue of being in or having passed through an dynticks
- * idle state since the last call to dyntick_save_progress_counter()
- * for this same CPU, or by virtue of having been offline.
- */
-static int rcu_implicit_dynticks_qs(struct rcu_data *rdp,
-				    bool *isidle, unsigned long *maxj)
-{
-	unsigned int curr;
-	unsigned int snap;
-
-	curr = (unsigned int)atomic_add_return(0, &rdp->dynticks->dynticks);
-	snap = (unsigned int)rdp->dynticks_snap;
-
-	/*
-	 * If the CPU passed through or entered a dynticks idle phase with
-	 * no active irq/NMI handlers, then we can safely pretend that the CPU
-	 * already acknowledged the request to pass through a quiescent
-	 * state.  Either way, that CPU cannot possibly be in an RCU
-	 * read-side critical section that started before the beginning
-	 * of the current RCU grace period.
-	 */
-	if ((curr & 0x1) == 0 || UINT_CMP_GE(curr, snap + 2)) {
-		trace_rcu_fqs(rdp->rsp->name, rdp->gpnum, rdp->cpu, TPS("dti"));
-		rdp->dynticks_fqs++;
-		return 1;
-	}
-
-	/*
-	 * Check for the CPU being offline, but only if the grace period
-	 * is old enough.  We don't need to worry about the CPU changing
-	 * state: If we see it offline even once, it has been through a
-	 * quiescent state.
-	 *
-	 * The reason for insisting that the grace period be at least
-	 * one jiffy old is that CPUs that are not quite online and that
-	 * have just gone offline can still execute RCU read-side critical
-	 * sections.
-	 */
-	if (ULONG_CMP_GE(rdp->rsp->gp_start + 2, jiffies))
-		return 0;  /* Grace period is not old enough. */
-	barrier();
-	if (cpu_is_offline(rdp->cpu)) {
-		trace_rcu_fqs(rdp->rsp->name, rdp->gpnum, rdp->cpu, TPS("ofl"));
-		rdp->offline_fqs++;
-		return 1;
-	}
-
-	/*
-	 * There is a possibility that a CPU in adaptive-ticks state
-	 * might run in the kernel with the scheduling-clock tick disabled
-	 * for an extended time period.  Invoke rcu_kick_nohz_cpu() to
-	 * force the CPU to restart the scheduling-clock tick in this
-	 * CPU is in this state.
-	 */
-	rcu_kick_nohz_cpu(rdp->cpu);
-
-	return 0;
-}
-
-static void record_gp_stall_check_time(struct rcu_state *rsp)
-{
-	unsigned long j = ACCESS_ONCE(jiffies);
-
-	rsp->gp_start = j;
-	smp_wmb(); /* Record start time before stall time. */
-	rsp->jiffies_stall = j + rcu_jiffies_till_stall_check();
-}
-
-/*
- * Dump stacks of all tasks running on stalled CPUs.  This is a fallback
- * for architectures that do not implement trigger_all_cpu_backtrace().
- * The NMI-triggered stack traces are more accurate because they are
- * printed by the target CPU.
- */
-static void rcu_dump_cpu_stacks(struct rcu_state *rsp)
-{
-	int cpu;
-	unsigned long flags;
-	struct rcu_node *rnp;
-
-	rcu_for_each_leaf_node(rsp, rnp) {
-		raw_spin_lock_irqsave(&rnp->lock, flags);
-		if (rnp->qsmask != 0) {
-			for (cpu = 0; cpu <= rnp->grphi - rnp->grplo; cpu++)
-				if (rnp->qsmask & (1UL << cpu))
-					dump_cpu_task(rnp->grplo + cpu);
-		}
-		raw_spin_unlock_irqrestore(&rnp->lock, flags);
-	}
-}
-
-static void print_other_cpu_stall(struct rcu_state *rsp)
-{
-	int cpu;
-	long delta;
-	unsigned long flags;
-	int ndetected = 0;
-	struct rcu_node *rnp = rcu_get_root(rsp);
-	long totqlen = 0;
-
-	/* Only let one CPU complain about others per time interval. */
-
-	raw_spin_lock_irqsave(&rnp->lock, flags);
-	delta = jiffies - rsp->jiffies_stall;
-	if (delta < RCU_STALL_RAT_DELAY || !rcu_gp_in_progress(rsp)) {
-		raw_spin_unlock_irqrestore(&rnp->lock, flags);
-		return;
-	}
-	rsp->jiffies_stall = jiffies + 3 * rcu_jiffies_till_stall_check() + 3;
-	raw_spin_unlock_irqrestore(&rnp->lock, flags);
-
-	/*
-	 * OK, time to rat on our buddy...
-	 * See Documentation/RCU/stallwarn.txt for info on how to debug
-	 * RCU CPU stall warnings.
-	 */
-	pr_err("INFO: %s detected stalls on CPUs/tasks:",
-	       rsp->name);
-	print_cpu_stall_info_begin();
-	rcu_for_each_leaf_node(rsp, rnp) {
-		raw_spin_lock_irqsave(&rnp->lock, flags);
-		ndetected += rcu_print_task_stall(rnp);
-		if (rnp->qsmask != 0) {
-			for (cpu = 0; cpu <= rnp->grphi - rnp->grplo; cpu++)
-				if (rnp->qsmask & (1UL << cpu)) {
-					print_cpu_stall_info(rsp,
-							     rnp->grplo + cpu);
-					ndetected++;
-				}
-		}
-		raw_spin_unlock_irqrestore(&rnp->lock, flags);
-	}
-
-	/*
-	 * Now rat on any tasks that got kicked up to the root rcu_node
-	 * due to CPU offlining.
-	 */
-	rnp = rcu_get_root(rsp);
-	raw_spin_lock_irqsave(&rnp->lock, flags);
-	ndetected += rcu_print_task_stall(rnp);
-	raw_spin_unlock_irqrestore(&rnp->lock, flags);
-
-	print_cpu_stall_info_end();
-	for_each_possible_cpu(cpu)
-		totqlen += per_cpu_ptr(rsp->rda, cpu)->qlen;
-	pr_cont("(detected by %d, t=%ld jiffies, g=%lu, c=%lu, q=%lu)\n",
-	       smp_processor_id(), (long)(jiffies - rsp->gp_start),
-	       rsp->gpnum, rsp->completed, totqlen);
-	if (ndetected == 0)
-		pr_err("INFO: Stall ended before state dump start\n");
-	else if (!trigger_all_cpu_backtrace())
-		rcu_dump_cpu_stacks(rsp);
-
-	/* Complain about tasks blocking the grace period. */
-
-	rcu_print_detail_task_stall(rsp);
-
-	force_quiescent_state(rsp);  /* Kick them all. */
-}
-
-static void print_cpu_stall(struct rcu_state *rsp)
-{
-	int cpu;
-	unsigned long flags;
-	struct rcu_node *rnp = rcu_get_root(rsp);
-	long totqlen = 0;
-
-	/*
-	 * OK, time to rat on ourselves...
-	 * See Documentation/RCU/stallwarn.txt for info on how to debug
-	 * RCU CPU stall warnings.
-	 */
-	pr_err("INFO: %s self-detected stall on CPU", rsp->name);
-	print_cpu_stall_info_begin();
-	print_cpu_stall_info(rsp, smp_processor_id());
-	print_cpu_stall_info_end();
-	for_each_possible_cpu(cpu)
-		totqlen += per_cpu_ptr(rsp->rda, cpu)->qlen;
-	pr_cont(" (t=%lu jiffies g=%lu c=%lu q=%lu)\n",
-		jiffies - rsp->gp_start, rsp->gpnum, rsp->completed, totqlen);
-	if (!trigger_all_cpu_backtrace())
-		dump_stack();
-
-	raw_spin_lock_irqsave(&rnp->lock, flags);
-	if (ULONG_CMP_GE(jiffies, rsp->jiffies_stall))
-		rsp->jiffies_stall = jiffies +
-				     3 * rcu_jiffies_till_stall_check() + 3;
-	raw_spin_unlock_irqrestore(&rnp->lock, flags);
-
-	set_need_resched();  /* kick ourselves to get things going. */
-}
-
-static void check_cpu_stall(struct rcu_state *rsp, struct rcu_data *rdp)
-{
-	unsigned long completed;
-	unsigned long gpnum;
-	unsigned long gps;
-	unsigned long j;
-	unsigned long js;
-	struct rcu_node *rnp;
-
-	if (rcu_cpu_stall_suppress || !rcu_gp_in_progress(rsp))
-		return;
-	j = ACCESS_ONCE(jiffies);
-
-	/*
-	 * Lots of memory barriers to reject false positives.
-	 *
-	 * The idea is to pick up rsp->gpnum, then rsp->jiffies_stall,
-	 * then rsp->gp_start, and finally rsp->completed.  These values
-	 * are updated in the opposite order with memory barriers (or
-	 * equivalent) during grace-period initialization and cleanup.
-	 * Now, a false positive can occur if we get an new value of
-	 * rsp->gp_start and a old value of rsp->jiffies_stall.  But given
-	 * the memory barriers, the only way that this can happen is if one
-	 * grace period ends and another starts between these two fetches.
-	 * Detect this by comparing rsp->completed with the previous fetch
-	 * from rsp->gpnum.
-	 *
-	 * Given this check, comparisons of jiffies, rsp->jiffies_stall,
-	 * and rsp->gp_start suffice to forestall false positives.
-	 */
-	gpnum = ACCESS_ONCE(rsp->gpnum);
-	smp_rmb(); /* Pick up ->gpnum first... */
-	js = ACCESS_ONCE(rsp->jiffies_stall);
-	smp_rmb(); /* ...then ->jiffies_stall before the rest... */
-	gps = ACCESS_ONCE(rsp->gp_start);
-	smp_rmb(); /* ...and finally ->gp_start before ->completed. */
-	completed = ACCESS_ONCE(rsp->completed);
-	if (ULONG_CMP_GE(completed, gpnum) ||
-	    ULONG_CMP_LT(j, js) ||
-	    ULONG_CMP_GE(gps, js))
-		return; /* No stall or GP completed since entering function. */
-	rnp = rdp->mynode;
-	if (rcu_gp_in_progress(rsp) &&
-	    (ACCESS_ONCE(rnp->qsmask) & rdp->grpmask)) {
-
-		/* We haven't checked in, so go dump stack. */
-		print_cpu_stall(rsp);
-
-	} else if (rcu_gp_in_progress(rsp) &&
-		   ULONG_CMP_GE(j, js + RCU_STALL_RAT_DELAY)) {
-
-		/* They had a few time units to dump stack, so complain. */
-		print_other_cpu_stall(rsp);
-	}
-}
-
-/**
- * rcu_cpu_stall_reset - prevent further stall warnings in current grace period
- *
- * Set the stall-warning timeout way off into the future, thus preventing
- * any RCU CPU stall-warning messages from appearing in the current set of
- * RCU grace periods.
- *
- * The caller must disable hard irqs.
- */
-void rcu_cpu_stall_reset(void)
-{
-	struct rcu_state *rsp;
-
-	for_each_rcu_flavor(rsp)
-		rsp->jiffies_stall = jiffies + ULONG_MAX / 2;
-}
-
-/*
- * Initialize the specified rcu_data structure's callback list to empty.
- */
-static void init_callback_list(struct rcu_data *rdp)
-{
-	int i;
-
-	if (init_nocb_callback_list(rdp))
-		return;
-	rdp->nxtlist = NULL;
-	for (i = 0; i < RCU_NEXT_SIZE; i++)
-		rdp->nxttail[i] = &rdp->nxtlist;
-}
-
-/*
- * Determine the value that ->completed will have at the end of the
- * next subsequent grace period.  This is used to tag callbacks so that
- * a CPU can invoke callbacks in a timely fashion even if that CPU has
- * been dyntick-idle for an extended period with callbacks under the
- * influence of RCU_FAST_NO_HZ.
- *
- * The caller must hold rnp->lock with interrupts disabled.
- */
-static unsigned long rcu_cbs_completed(struct rcu_state *rsp,
-				       struct rcu_node *rnp)
-{
-	/*
-	 * If RCU is idle, we just wait for the next grace period.
-	 * But we can only be sure that RCU is idle if we are looking
-	 * at the root rcu_node structure -- otherwise, a new grace
-	 * period might have started, but just not yet gotten around
-	 * to initializing the current non-root rcu_node structure.
-	 */
-	if (rcu_get_root(rsp) == rnp && rnp->gpnum == rnp->completed)
-		return rnp->completed + 1;
-
-	/*
-	 * Otherwise, wait for a possible partial grace period and
-	 * then the subsequent full grace period.
-	 */
-	return rnp->completed + 2;
-}
-
-/*
- * Trace-event helper function for rcu_start_future_gp() and
- * rcu_nocb_wait_gp().
- */
-static void trace_rcu_future_gp(struct rcu_node *rnp, struct rcu_data *rdp,
-				unsigned long c, const char *s)
-{
-	trace_rcu_future_grace_period(rdp->rsp->name, rnp->gpnum,
-				      rnp->completed, c, rnp->level,
-				      rnp->grplo, rnp->grphi, s);
-}
-
-/*
- * Start some future grace period, as needed to handle newly arrived
- * callbacks.  The required future grace periods are recorded in each
- * rcu_node structure's ->need_future_gp field.
- *
- * The caller must hold the specified rcu_node structure's ->lock.
- */
-static unsigned long __maybe_unused
-rcu_start_future_gp(struct rcu_node *rnp, struct rcu_data *rdp)
-{
-	unsigned long c;
-	int i;
-	struct rcu_node *rnp_root = rcu_get_root(rdp->rsp);
-
-	/*
-	 * Pick up grace-period number for new callbacks.  If this
-	 * grace period is already marked as needed, return to the caller.
-	 */
-	c = rcu_cbs_completed(rdp->rsp, rnp);
-	trace_rcu_future_gp(rnp, rdp, c, TPS("Startleaf"));
-	if (rnp->need_future_gp[c & 0x1]) {
-		trace_rcu_future_gp(rnp, rdp, c, TPS("Prestartleaf"));
-		return c;
-	}
-
-	/*
-	 * If either this rcu_node structure or the root rcu_node structure
-	 * believe that a grace period is in progress, then we must wait
-	 * for the one following, which is in "c".  Because our request
-	 * will be noticed at the end of the current grace period, we don't
-	 * need to explicitly start one.
-	 */
-	if (rnp->gpnum != rnp->completed ||
-	    ACCESS_ONCE(rnp->gpnum) != ACCESS_ONCE(rnp->completed)) {
-		rnp->need_future_gp[c & 0x1]++;
-		trace_rcu_future_gp(rnp, rdp, c, TPS("Startedleaf"));
-		return c;
-	}
-
-	/*
-	 * There might be no grace period in progress.  If we don't already
-	 * hold it, acquire the root rcu_node structure's lock in order to
-	 * start one (if needed).
-	 */
-	if (rnp != rnp_root)
-		raw_spin_lock(&rnp_root->lock);
-
-	/*
-	 * Get a new grace-period number.  If there really is no grace
-	 * period in progress, it will be smaller than the one we obtained
-	 * earlier.  Adjust callbacks as needed.  Note that even no-CBs
-	 * CPUs have a ->nxtcompleted[] array, so no no-CBs checks needed.
-	 */
-	c = rcu_cbs_completed(rdp->rsp, rnp_root);
-	for (i = RCU_DONE_TAIL; i < RCU_NEXT_TAIL; i++)
-		if (ULONG_CMP_LT(c, rdp->nxtcompleted[i]))
-			rdp->nxtcompleted[i] = c;
-
-	/*
-	 * If the needed for the required grace period is already
-	 * recorded, trace and leave.
-	 */
-	if (rnp_root->need_future_gp[c & 0x1]) {
-		trace_rcu_future_gp(rnp, rdp, c, TPS("Prestartedroot"));
-		goto unlock_out;
-	}
-
-	/* Record the need for the future grace period. */
-	rnp_root->need_future_gp[c & 0x1]++;
-
-	/* If a grace period is not already in progress, start one. */
-	if (rnp_root->gpnum != rnp_root->completed) {
-		trace_rcu_future_gp(rnp, rdp, c, TPS("Startedleafroot"));
-	} else {
-		trace_rcu_future_gp(rnp, rdp, c, TPS("Startedroot"));
-		rcu_start_gp_advanced(rdp->rsp, rnp_root, rdp);
-	}
-unlock_out:
-	if (rnp != rnp_root)
-		raw_spin_unlock(&rnp_root->lock);
-	return c;
-}
-
-/*
- * Clean up any old requests for the just-ended grace period.  Also return
- * whether any additional grace periods have been requested.  Also invoke
- * rcu_nocb_gp_cleanup() in order to wake up any no-callbacks kthreads
- * waiting for this grace period to complete.
- */
-static int rcu_future_gp_cleanup(struct rcu_state *rsp, struct rcu_node *rnp)
-{
-	int c = rnp->completed;
-	int needmore;
-	struct rcu_data *rdp = this_cpu_ptr(rsp->rda);
-
-	rcu_nocb_gp_cleanup(rsp, rnp);
-	rnp->need_future_gp[c & 0x1] = 0;
-	needmore = rnp->need_future_gp[(c + 1) & 0x1];
-	trace_rcu_future_gp(rnp, rdp, c,
-			    needmore ? TPS("CleanupMore") : TPS("Cleanup"));
-	return needmore;
-}
-
-/*
- * If there is room, assign a ->completed number to any callbacks on
- * this CPU that have not already been assigned.  Also accelerate any
- * callbacks that were previously assigned a ->completed number that has
- * since proven to be too conservative, which can happen if callbacks get
- * assigned a ->completed number while RCU is idle, but with reference to
- * a non-root rcu_node structure.  This function is idempotent, so it does
- * not hurt to call it repeatedly.
- *
- * The caller must hold rnp->lock with interrupts disabled.
- */
-static void rcu_accelerate_cbs(struct rcu_state *rsp, struct rcu_node *rnp,
-			       struct rcu_data *rdp)
-{
-	unsigned long c;
-	int i;
-
-	/* If the CPU has no callbacks, nothing to do. */
-	if (!rdp->nxttail[RCU_NEXT_TAIL] || !*rdp->nxttail[RCU_DONE_TAIL])
-		return;
-
-	/*
-	 * Starting from the sublist containing the callbacks most
-	 * recently assigned a ->completed number and working down, find the
-	 * first sublist that is not assignable to an upcoming grace period.
-	 * Such a sublist has something in it (first two tests) and has
-	 * a ->completed number assigned that will complete sooner than
-	 * the ->completed number for newly arrived callbacks (last test).
-	 *
-	 * The key point is that any later sublist can be assigned the
-	 * same ->completed number as the newly arrived callbacks, which
-	 * means that the callbacks in any of these later sublist can be
-	 * grouped into a single sublist, whether or not they have already
-	 * been assigned a ->completed number.
-	 */
-	c = rcu_cbs_completed(rsp, rnp);
-	for (i = RCU_NEXT_TAIL - 1; i > RCU_DONE_TAIL; i--)
-		if (rdp->nxttail[i] != rdp->nxttail[i - 1] &&
-		    !ULONG_CMP_GE(rdp->nxtcompleted[i], c))
-			break;
-
-	/*
-	 * If there are no sublist for unassigned callbacks, leave.
-	 * At the same time, advance "i" one sublist, so that "i" will
-	 * index into the sublist where all the remaining callbacks should
-	 * be grouped into.
-	 */
-	if (++i >= RCU_NEXT_TAIL)
-		return;
-
-	/*
-	 * Assign all subsequent callbacks' ->completed number to the next
-	 * full grace period and group them all in the sublist initially
-	 * indexed by "i".
-	 */
-	for (; i <= RCU_NEXT_TAIL; i++) {
-		rdp->nxttail[i] = rdp->nxttail[RCU_NEXT_TAIL];
-		rdp->nxtcompleted[i] = c;
-	}
-	/* Record any needed additional grace periods. */
-	rcu_start_future_gp(rnp, rdp);
-
-	/* Trace depending on how much we were able to accelerate. */
-	if (!*rdp->nxttail[RCU_WAIT_TAIL])
-		trace_rcu_grace_period(rsp->name, rdp->gpnum, TPS("AccWaitCB"));
-	else
-		trace_rcu_grace_period(rsp->name, rdp->gpnum, TPS("AccReadyCB"));
-}
-
-/*
- * Move any callbacks whose grace period has completed to the
- * RCU_DONE_TAIL sublist, then compact the remaining sublists and
- * assign ->completed numbers to any callbacks in the RCU_NEXT_TAIL
- * sublist.  This function is idempotent, so it does not hurt to
- * invoke it repeatedly.  As long as it is not invoked -too- often...
- *
- * The caller must hold rnp->lock with interrupts disabled.
- */
-static void rcu_advance_cbs(struct rcu_state *rsp, struct rcu_node *rnp,
-			    struct rcu_data *rdp)
-{
-	int i, j;
-
-	/* If the CPU has no callbacks, nothing to do. */
-	if (!rdp->nxttail[RCU_NEXT_TAIL] || !*rdp->nxttail[RCU_DONE_TAIL])
-		return;
-
-	/*
-	 * Find all callbacks whose ->completed numbers indicate that they
-	 * are ready to invoke, and put them into the RCU_DONE_TAIL sublist.
-	 */
-	for (i = RCU_WAIT_TAIL; i < RCU_NEXT_TAIL; i++) {
-		if (ULONG_CMP_LT(rnp->completed, rdp->nxtcompleted[i]))
-			break;
-		rdp->nxttail[RCU_DONE_TAIL] = rdp->nxttail[i];
-	}
-	/* Clean up any sublist tail pointers that were misordered above. */
-	for (j = RCU_WAIT_TAIL; j < i; j++)
-		rdp->nxttail[j] = rdp->nxttail[RCU_DONE_TAIL];
-
-	/* Copy down callbacks to fill in empty sublists. */
-	for (j = RCU_WAIT_TAIL; i < RCU_NEXT_TAIL; i++, j++) {
-		if (rdp->nxttail[j] == rdp->nxttail[RCU_NEXT_TAIL])
-			break;
-		rdp->nxttail[j] = rdp->nxttail[i];
-		rdp->nxtcompleted[j] = rdp->nxtcompleted[i];
-	}
-
-	/* Classify any remaining callbacks. */
-	rcu_accelerate_cbs(rsp, rnp, rdp);
-}
-
-/*
- * Update CPU-local rcu_data state to record the beginnings and ends of
- * grace periods.  The caller must hold the ->lock of the leaf rcu_node
- * structure corresponding to the current CPU, and must have irqs disabled.
- */
-static void __note_gp_changes(struct rcu_state *rsp, struct rcu_node *rnp, struct rcu_data *rdp)
-{
-	/* Handle the ends of any preceding grace periods first. */
-	if (rdp->completed == rnp->completed) {
-
-		/* No grace period end, so just accelerate recent callbacks. */
-		rcu_accelerate_cbs(rsp, rnp, rdp);
-
-	} else {
-
-		/* Advance callbacks. */
-		rcu_advance_cbs(rsp, rnp, rdp);
-
-		/* Remember that we saw this grace-period completion. */
-		rdp->completed = rnp->completed;
-		trace_rcu_grace_period(rsp->name, rdp->gpnum, TPS("cpuend"));
-	}
-
-	if (rdp->gpnum != rnp->gpnum) {
-		/*
-		 * If the current grace period is waiting for this CPU,
-		 * set up to detect a quiescent state, otherwise don't
-		 * go looking for one.
-		 */
-		rdp->gpnum = rnp->gpnum;
-		trace_rcu_grace_period(rsp->name, rdp->gpnum, TPS("cpustart"));
-		rdp->passed_quiesce = 0;
-		rdp->qs_pending = !!(rnp->qsmask & rdp->grpmask);
-		zero_cpu_stall_ticks(rdp);
-	}
-}
-
-static void note_gp_changes(struct rcu_state *rsp, struct rcu_data *rdp)
-{
-	unsigned long flags;
-	struct rcu_node *rnp;
-
-	local_irq_save(flags);
-	rnp = rdp->mynode;
-	if ((rdp->gpnum == ACCESS_ONCE(rnp->gpnum) &&
-	     rdp->completed == ACCESS_ONCE(rnp->completed)) || /* w/out lock. */
-	    !raw_spin_trylock(&rnp->lock)) { /* irqs already off, so later. */
-		local_irq_restore(flags);
-		return;
-	}
-	__note_gp_changes(rsp, rnp, rdp);
-	raw_spin_unlock_irqrestore(&rnp->lock, flags);
-}
-
-/*
- * Initialize a new grace period.  Return 0 if no grace period required.
- */
-static int rcu_gp_init(struct rcu_state *rsp)
-{
-	struct rcu_data *rdp;
-	struct rcu_node *rnp = rcu_get_root(rsp);
-
-	rcu_bind_gp_kthread();
-	raw_spin_lock_irq(&rnp->lock);
-	if (rsp->gp_flags == 0) {
-		/* Spurious wakeup, tell caller to go back to sleep.  */
-		raw_spin_unlock_irq(&rnp->lock);
-		return 0;
-	}
-	rsp->gp_flags = 0; /* Clear all flags: New grace period. */
-
-	if (WARN_ON_ONCE(rcu_gp_in_progress(rsp))) {
-		/*
-		 * Grace period already in progress, don't start another.
-		 * Not supposed to be able to happen.
-		 */
-		raw_spin_unlock_irq(&rnp->lock);
-		return 0;
-	}
-
-	/* Advance to a new grace period and initialize state. */
-	record_gp_stall_check_time(rsp);
-	smp_wmb(); /* Record GP times before starting GP. */
-	rsp->gpnum++;
-	trace_rcu_grace_period(rsp->name, rsp->gpnum, TPS("start"));
-	raw_spin_unlock_irq(&rnp->lock);
-
-	/* Exclude any concurrent CPU-hotplug operations. */
-	mutex_lock(&rsp->onoff_mutex);
-
-	/*
-	 * Set the quiescent-state-needed bits in all the rcu_node
-	 * structures for all currently online CPUs in breadth-first order,
-	 * starting from the root rcu_node structure, relying on the layout
-	 * of the tree within the rsp->node[] array.  Note that other CPUs
-	 * will access only the leaves of the hierarchy, thus seeing that no
-	 * grace period is in progress, at least until the corresponding
-	 * leaf node has been initialized.  In addition, we have excluded
-	 * CPU-hotplug operations.
-	 *
-	 * The grace period cannot complete until the initialization
-	 * process finishes, because this kthread handles both.
-	 */
-	rcu_for_each_node_breadth_first(rsp, rnp) {
-		raw_spin_lock_irq(&rnp->lock);
-		rdp = this_cpu_ptr(rsp->rda);
-		rcu_preempt_check_blocked_tasks(rnp);
-		rnp->qsmask = rnp->qsmaskinit;
-		ACCESS_ONCE(rnp->gpnum) = rsp->gpnum;
-		WARN_ON_ONCE(rnp->completed != rsp->completed);
-		ACCESS_ONCE(rnp->completed) = rsp->completed;
-		if (rnp == rdp->mynode)
-			__note_gp_changes(rsp, rnp, rdp);
-		rcu_preempt_boost_start_gp(rnp);
-		trace_rcu_grace_period_init(rsp->name, rnp->gpnum,
-					    rnp->level, rnp->grplo,
-					    rnp->grphi, rnp->qsmask);
-		raw_spin_unlock_irq(&rnp->lock);
-#ifdef CONFIG_PROVE_RCU_DELAY
-		if ((prandom_u32() % (rcu_num_nodes + 1)) == 0 &&
-		    system_state == SYSTEM_RUNNING)
-			udelay(200);
-#endif /* #ifdef CONFIG_PROVE_RCU_DELAY */
-		cond_resched();
-	}
-
-	mutex_unlock(&rsp->onoff_mutex);
-	return 1;
-}
-
-/*
- * Do one round of quiescent-state forcing.
- */
-static int rcu_gp_fqs(struct rcu_state *rsp, int fqs_state_in)
-{
-	int fqs_state = fqs_state_in;
-	bool isidle = false;
-	unsigned long maxj;
-	struct rcu_node *rnp = rcu_get_root(rsp);
-
-	rsp->n_force_qs++;
-	if (fqs_state == RCU_SAVE_DYNTICK) {
-		/* Collect dyntick-idle snapshots. */
-		if (is_sysidle_rcu_state(rsp)) {
-			isidle = 1;
-			maxj = jiffies - ULONG_MAX / 4;
-		}
-		force_qs_rnp(rsp, dyntick_save_progress_counter,
-			     &isidle, &maxj);
-		rcu_sysidle_report_gp(rsp, isidle, maxj);
-		fqs_state = RCU_FORCE_QS;
-	} else {
-		/* Handle dyntick-idle and offline CPUs. */
-		isidle = 0;
-		force_qs_rnp(rsp, rcu_implicit_dynticks_qs, &isidle, &maxj);
-	}
-	/* Clear flag to prevent immediate re-entry. */
-	if (ACCESS_ONCE(rsp->gp_flags) & RCU_GP_FLAG_FQS) {
-		raw_spin_lock_irq(&rnp->lock);
-		rsp->gp_flags &= ~RCU_GP_FLAG_FQS;
-		raw_spin_unlock_irq(&rnp->lock);
-	}
-	return fqs_state;
-}
-
-/*
- * Clean up after the old grace period.
- */
-static void rcu_gp_cleanup(struct rcu_state *rsp)
-{
-	unsigned long gp_duration;
-	int nocb = 0;
-	struct rcu_data *rdp;
-	struct rcu_node *rnp = rcu_get_root(rsp);
-
-	raw_spin_lock_irq(&rnp->lock);
-	gp_duration = jiffies - rsp->gp_start;
-	if (gp_duration > rsp->gp_max)
-		rsp->gp_max = gp_duration;
-
-	/*
-	 * We know the grace period is complete, but to everyone else
-	 * it appears to still be ongoing.  But it is also the case
-	 * that to everyone else it looks like there is nothing that
-	 * they can do to advance the grace period.  It is therefore
-	 * safe for us to drop the lock in order to mark the grace
-	 * period as completed in all of the rcu_node structures.
-	 */
-	raw_spin_unlock_irq(&rnp->lock);
-
-	/*
-	 * Propagate new ->completed value to rcu_node structures so
-	 * that other CPUs don't have to wait until the start of the next
-	 * grace period to process their callbacks.  This also avoids
-	 * some nasty RCU grace-period initialization races by forcing
-	 * the end of the current grace period to be completely recorded in
-	 * all of the rcu_node structures before the beginning of the next
-	 * grace period is recorded in any of the rcu_node structures.
-	 */
-	rcu_for_each_node_breadth_first(rsp, rnp) {
-		raw_spin_lock_irq(&rnp->lock);
-		ACCESS_ONCE(rnp->completed) = rsp->gpnum;
-		rdp = this_cpu_ptr(rsp->rda);
-		if (rnp == rdp->mynode)
-			__note_gp_changes(rsp, rnp, rdp);
-		nocb += rcu_future_gp_cleanup(rsp, rnp);
-		raw_spin_unlock_irq(&rnp->lock);
-		cond_resched();
-	}
-	rnp = rcu_get_root(rsp);
-	raw_spin_lock_irq(&rnp->lock);
-	rcu_nocb_gp_set(rnp, nocb);
-
-	rsp->completed = rsp->gpnum; /* Declare grace period done. */
-	trace_rcu_grace_period(rsp->name, rsp->completed, TPS("end"));
-	rsp->fqs_state = RCU_GP_IDLE;
-	rdp = this_cpu_ptr(rsp->rda);
-	rcu_advance_cbs(rsp, rnp, rdp);  /* Reduce false positives below. */
-	if (cpu_needs_another_gp(rsp, rdp)) {
-		rsp->gp_flags = RCU_GP_FLAG_INIT;
-		trace_rcu_grace_period(rsp->name,
-				       ACCESS_ONCE(rsp->gpnum),
-				       TPS("newreq"));
-	}
-	raw_spin_unlock_irq(&rnp->lock);
-}
-
-/*
- * Body of kthread that handles grace periods.
- */
-static int __noreturn rcu_gp_kthread(void *arg)
-{
-	int fqs_state;
-	int gf;
-	unsigned long j;
-	int ret;
-	struct rcu_state *rsp = arg;
-	struct rcu_node *rnp = rcu_get_root(rsp);
-
-	for (;;) {
-
-		/* Handle grace-period start. */
-		for (;;) {
-			trace_rcu_grace_period(rsp->name,
-					       ACCESS_ONCE(rsp->gpnum),
-					       TPS("reqwait"));
-			wait_event_interruptible(rsp->gp_wq,
-						 ACCESS_ONCE(rsp->gp_flags) &
-						 RCU_GP_FLAG_INIT);
-			if (rcu_gp_init(rsp))
-				break;
-			cond_resched();
-			flush_signals(current);
-			trace_rcu_grace_period(rsp->name,
-					       ACCESS_ONCE(rsp->gpnum),
-					       TPS("reqwaitsig"));
-		}
-
-		/* Handle quiescent-state forcing. */
-		fqs_state = RCU_SAVE_DYNTICK;
-		j = jiffies_till_first_fqs;
-		if (j > HZ) {
-			j = HZ;
-			jiffies_till_first_fqs = HZ;
-		}
-		ret = 0;
-		for (;;) {
-			if (!ret)
-				rsp->jiffies_force_qs = jiffies + j;
-			trace_rcu_grace_period(rsp->name,
-					       ACCESS_ONCE(rsp->gpnum),
-					       TPS("fqswait"));
-			ret = wait_event_interruptible_timeout(rsp->gp_wq,
-					((gf = ACCESS_ONCE(rsp->gp_flags)) &
-					 RCU_GP_FLAG_FQS) ||
-					(!ACCESS_ONCE(rnp->qsmask) &&
-					 !rcu_preempt_blocked_readers_cgp(rnp)),
-					j);
-			/* If grace period done, leave loop. */
-			if (!ACCESS_ONCE(rnp->qsmask) &&
-			    !rcu_preempt_blocked_readers_cgp(rnp))
-				break;
-			/* If time for quiescent-state forcing, do it. */
-			if (ULONG_CMP_GE(jiffies, rsp->jiffies_force_qs) ||
-			    (gf & RCU_GP_FLAG_FQS)) {
-				trace_rcu_grace_period(rsp->name,
-						       ACCESS_ONCE(rsp->gpnum),
-						       TPS("fqsstart"));
-				fqs_state = rcu_gp_fqs(rsp, fqs_state);
-				trace_rcu_grace_period(rsp->name,
-						       ACCESS_ONCE(rsp->gpnum),
-						       TPS("fqsend"));
-				cond_resched();
-			} else {
-				/* Deal with stray signal. */
-				cond_resched();
-				flush_signals(current);
-				trace_rcu_grace_period(rsp->name,
-						       ACCESS_ONCE(rsp->gpnum),
-						       TPS("fqswaitsig"));
-			}
-			j = jiffies_till_next_fqs;
-			if (j > HZ) {
-				j = HZ;
-				jiffies_till_next_fqs = HZ;
-			} else if (j < 1) {
-				j = 1;
-				jiffies_till_next_fqs = 1;
-			}
-		}
-
-		/* Handle grace-period end. */
-		rcu_gp_cleanup(rsp);
-	}
-}
-
-static void rsp_wakeup(struct irq_work *work)
-{
-	struct rcu_state *rsp = container_of(work, struct rcu_state, wakeup_work);
-
-	/* Wake up rcu_gp_kthread() to start the grace period. */
-	wake_up(&rsp->gp_wq);
-}
-
-/*
- * Start a new RCU grace period if warranted, re-initializing the hierarchy
- * in preparation for detecting the next grace period.  The caller must hold
- * the root node's ->lock and hard irqs must be disabled.
- *
- * Note that it is legal for a dying CPU (which is marked as offline) to
- * invoke this function.  This can happen when the dying CPU reports its
- * quiescent state.
- */
-static void
-rcu_start_gp_advanced(struct rcu_state *rsp, struct rcu_node *rnp,
-		      struct rcu_data *rdp)
-{
-	if (!rsp->gp_kthread || !cpu_needs_another_gp(rsp, rdp)) {
-		/*
-		 * Either we have not yet spawned the grace-period
-		 * task, this CPU does not need another grace period,
-		 * or a grace period is already in progress.
-		 * Either way, don't start a new grace period.
-		 */
-		return;
-	}
-	rsp->gp_flags = RCU_GP_FLAG_INIT;
-	trace_rcu_grace_period(rsp->name, ACCESS_ONCE(rsp->gpnum),
-			       TPS("newreq"));
-
-	/*
-	 * We can't do wakeups while holding the rnp->lock, as that
-	 * could cause possible deadlocks with the rq->lock. Defer
-	 * the wakeup to interrupt context.  And don't bother waking
-	 * up the running kthread.
-	 */
-	if (current != rsp->gp_kthread)
-		irq_work_queue(&rsp->wakeup_work);
-}
-
-/*
- * Similar to rcu_start_gp_advanced(), but also advance the calling CPU's
- * callbacks.  Note that rcu_start_gp_advanced() cannot do this because it
- * is invoked indirectly from rcu_advance_cbs(), which would result in
- * endless recursion -- or would do so if it wasn't for the self-deadlock
- * that is encountered beforehand.
- */
-static void
-rcu_start_gp(struct rcu_state *rsp)
-{
-	struct rcu_data *rdp = this_cpu_ptr(rsp->rda);
-	struct rcu_node *rnp = rcu_get_root(rsp);
-
-	/*
-	 * If there is no grace period in progress right now, any
-	 * callbacks we have up to this point will be satisfied by the
-	 * next grace period.  Also, advancing the callbacks reduces the
-	 * probability of false positives from cpu_needs_another_gp()
-	 * resulting in pointless grace periods.  So, advance callbacks
-	 * then start the grace period!
-	 */
-	rcu_advance_cbs(rsp, rnp, rdp);
-	rcu_start_gp_advanced(rsp, rnp, rdp);
-}
-
-/*
- * Report a full set of quiescent states to the specified rcu_state
- * data structure.  This involves cleaning up after the prior grace
- * period and letting rcu_start_gp() start up the next grace period
- * if one is needed.  Note that the caller must hold rnp->lock, which
- * is released before return.
- */
-static void rcu_report_qs_rsp(struct rcu_state *rsp, unsigned long flags)
-	__releases(rcu_get_root(rsp)->lock)
-{
-	WARN_ON_ONCE(!rcu_gp_in_progress(rsp));
-	raw_spin_unlock_irqrestore(&rcu_get_root(rsp)->lock, flags);
-	wake_up(&rsp->gp_wq);  /* Memory barrier implied by wake_up() path. */
-}
-
-/*
- * Similar to rcu_report_qs_rdp(), for which it is a helper function.
- * Allows quiescent states for a group of CPUs to be reported at one go
- * to the specified rcu_node structure, though all the CPUs in the group
- * must be represented by the same rcu_node structure (which need not be
- * a leaf rcu_node structure, though it often will be).  That structure's
- * lock must be held upon entry, and it is released before return.
- */
-static void
-rcu_report_qs_rnp(unsigned long mask, struct rcu_state *rsp,
-		  struct rcu_node *rnp, unsigned long flags)
-	__releases(rnp->lock)
-{
-	struct rcu_node *rnp_c;
-
-	/* Walk up the rcu_node hierarchy. */
-	for (;;) {
-		if (!(rnp->qsmask & mask)) {
-
-			/* Our bit has already been cleared, so done. */
-			raw_spin_unlock_irqrestore(&rnp->lock, flags);
-			return;
-		}
-		rnp->qsmask &= ~mask;
-		trace_rcu_quiescent_state_report(rsp->name, rnp->gpnum,
-						 mask, rnp->qsmask, rnp->level,
-						 rnp->grplo, rnp->grphi,
-						 !!rnp->gp_tasks);
-		if (rnp->qsmask != 0 || rcu_preempt_blocked_readers_cgp(rnp)) {
-
-			/* Other bits still set at this level, so done. */
-			raw_spin_unlock_irqrestore(&rnp->lock, flags);
-			return;
-		}
-		mask = rnp->grpmask;
-		if (rnp->parent == NULL) {
-
-			/* No more levels.  Exit loop holding root lock. */
-
-			break;
-		}
-		raw_spin_unlock_irqrestore(&rnp->lock, flags);
-		rnp_c = rnp;
-		rnp = rnp->parent;
-		raw_spin_lock_irqsave(&rnp->lock, flags);
-		WARN_ON_ONCE(rnp_c->qsmask);
-	}
-
-	/*
-	 * Get here if we are the last CPU to pass through a quiescent
-	 * state for this grace period.  Invoke rcu_report_qs_rsp()
-	 * to clean up and start the next grace period if one is needed.
-	 */
-	rcu_report_qs_rsp(rsp, flags); /* releases rnp->lock. */
-}
-
-/*
- * Record a quiescent state for the specified CPU to that CPU's rcu_data
- * structure.  This must be either called from the specified CPU, or
- * called when the specified CPU is known to be offline (and when it is
- * also known that no other CPU is concurrently trying to help the offline
- * CPU).  The lastcomp argument is used to make sure we are still in the
- * grace period of interest.  We don't want to end the current grace period
- * based on quiescent states detected in an earlier grace period!
- */
-static void
-rcu_report_qs_rdp(int cpu, struct rcu_state *rsp, struct rcu_data *rdp)
-{
-	unsigned long flags;
-	unsigned long mask;
-	struct rcu_node *rnp;
-
-	rnp = rdp->mynode;
-	raw_spin_lock_irqsave(&rnp->lock, flags);
-	if (rdp->passed_quiesce == 0 || rdp->gpnum != rnp->gpnum ||
-	    rnp->completed == rnp->gpnum) {
-
-		/*
-		 * The grace period in which this quiescent state was
-		 * recorded has ended, so don't report it upwards.
-		 * We will instead need a new quiescent state that lies
-		 * within the current grace period.
-		 */
-		rdp->passed_quiesce = 0;	/* need qs for new gp. */
-		raw_spin_unlock_irqrestore(&rnp->lock, flags);
-		return;
-	}
-	mask = rdp->grpmask;
-	if ((rnp->qsmask & mask) == 0) {
-		raw_spin_unlock_irqrestore(&rnp->lock, flags);
-	} else {
-		rdp->qs_pending = 0;
-
-		/*
-		 * This GP can't end until cpu checks in, so all of our
-		 * callbacks can be processed during the next GP.
-		 */
-		rcu_accelerate_cbs(rsp, rnp, rdp);
-
-		rcu_report_qs_rnp(mask, rsp, rnp, flags); /* rlses rnp->lock */
-	}
-}
-
-/*
- * Check to see if there is a new grace period of which this CPU
- * is not yet aware, and if so, set up local rcu_data state for it.
- * Otherwise, see if this CPU has just passed through its first
- * quiescent state for this grace period, and record that fact if so.
- */
-static void
-rcu_check_quiescent_state(struct rcu_state *rsp, struct rcu_data *rdp)
-{
-	/* Check for grace-period ends and beginnings. */
-	note_gp_changes(rsp, rdp);
-
-	/*
-	 * Does this CPU still need to do its part for current grace period?
-	 * If no, return and let the other CPUs do their part as well.
-	 */
-	if (!rdp->qs_pending)
-		return;
-
-	/*
-	 * Was there a quiescent state since the beginning of the grace
-	 * period? If no, then exit and wait for the next call.
-	 */
-	if (!rdp->passed_quiesce)
-		return;
-
-	/*
-	 * Tell RCU we are done (but rcu_report_qs_rdp() will be the
-	 * judge of that).
-	 */
-	rcu_report_qs_rdp(rdp->cpu, rsp, rdp);
-}
-
-#ifdef CONFIG_HOTPLUG_CPU
-
-/*
- * Send the specified CPU's RCU callbacks to the orphanage.  The
- * specified CPU must be offline, and the caller must hold the
- * ->orphan_lock.
- */
-static void
-rcu_send_cbs_to_orphanage(int cpu, struct rcu_state *rsp,
-			  struct rcu_node *rnp, struct rcu_data *rdp)
-{
-	/* No-CBs CPUs do not have orphanable callbacks. */
-	if (rcu_is_nocb_cpu(rdp->cpu))
-		return;
-
-	/*
-	 * Orphan the callbacks.  First adjust the counts.  This is safe
-	 * because _rcu_barrier() excludes CPU-hotplug operations, so it
-	 * cannot be running now.  Thus no memory barrier is required.
-	 */
-	if (rdp->nxtlist != NULL) {
-		rsp->qlen_lazy += rdp->qlen_lazy;
-		rsp->qlen += rdp->qlen;
-		rdp->n_cbs_orphaned += rdp->qlen;
-		rdp->qlen_lazy = 0;
-		ACCESS_ONCE(rdp->qlen) = 0;
-	}
-
-	/*
-	 * Next, move those callbacks still needing a grace period to
-	 * the orphanage, where some other CPU will pick them up.
-	 * Some of the callbacks might have gone partway through a grace
-	 * period, but that is too bad.  They get to start over because we
-	 * cannot assume that grace periods are synchronized across CPUs.
-	 * We don't bother updating the ->nxttail[] array yet, instead
-	 * we just reset the whole thing later on.
-	 */
-	if (*rdp->nxttail[RCU_DONE_TAIL] != NULL) {
-		*rsp->orphan_nxttail = *rdp->nxttail[RCU_DONE_TAIL];
-		rsp->orphan_nxttail = rdp->nxttail[RCU_NEXT_TAIL];
-		*rdp->nxttail[RCU_DONE_TAIL] = NULL;
-	}
-
-	/*
-	 * Then move the ready-to-invoke callbacks to the orphanage,
-	 * where some other CPU will pick them up.  These will not be
-	 * required to pass though another grace period: They are done.
-	 */
-	if (rdp->nxtlist != NULL) {
-		*rsp->orphan_donetail = rdp->nxtlist;
-		rsp->orphan_donetail = rdp->nxttail[RCU_DONE_TAIL];
-	}
-
-	/* Finally, initialize the rcu_data structure's list to empty.  */
-	init_callback_list(rdp);
-}
-
-/*
- * Adopt the RCU callbacks from the specified rcu_state structure's
- * orphanage.  The caller must hold the ->orphan_lock.
- */
-static void rcu_adopt_orphan_cbs(struct rcu_state *rsp)
-{
-	int i;
-	struct rcu_data *rdp = __this_cpu_ptr(rsp->rda);
-
-	/* No-CBs CPUs are handled specially. */
-	if (rcu_nocb_adopt_orphan_cbs(rsp, rdp))
-		return;
-
-	/* Do the accounting first. */
-	rdp->qlen_lazy += rsp->qlen_lazy;
-	rdp->qlen += rsp->qlen;
-	rdp->n_cbs_adopted += rsp->qlen;
-	if (rsp->qlen_lazy != rsp->qlen)
-		rcu_idle_count_callbacks_posted();
-	rsp->qlen_lazy = 0;
-	rsp->qlen = 0;
-
-	/*
-	 * We do not need a memory barrier here because the only way we
-	 * can get here if there is an rcu_barrier() in flight is if
-	 * we are the task doing the rcu_barrier().
-	 */
-
-	/* First adopt the ready-to-invoke callbacks. */
-	if (rsp->orphan_donelist != NULL) {
-		*rsp->orphan_donetail = *rdp->nxttail[RCU_DONE_TAIL];
-		*rdp->nxttail[RCU_DONE_TAIL] = rsp->orphan_donelist;
-		for (i = RCU_NEXT_SIZE - 1; i >= RCU_DONE_TAIL; i--)
-			if (rdp->nxttail[i] == rdp->nxttail[RCU_DONE_TAIL])
-				rdp->nxttail[i] = rsp->orphan_donetail;
-		rsp->orphan_donelist = NULL;
-		rsp->orphan_donetail = &rsp->orphan_donelist;
-	}
-
-	/* And then adopt the callbacks that still need a grace period. */
-	if (rsp->orphan_nxtlist != NULL) {
-		*rdp->nxttail[RCU_NEXT_TAIL] = rsp->orphan_nxtlist;
-		rdp->nxttail[RCU_NEXT_TAIL] = rsp->orphan_nxttail;
-		rsp->orphan_nxtlist = NULL;
-		rsp->orphan_nxttail = &rsp->orphan_nxtlist;
-	}
-}
-
-/*
- * Trace the fact that this CPU is going offline.
- */
-static void rcu_cleanup_dying_cpu(struct rcu_state *rsp)
-{
-	RCU_TRACE(unsigned long mask);
-	RCU_TRACE(struct rcu_data *rdp = this_cpu_ptr(rsp->rda));
-	RCU_TRACE(struct rcu_node *rnp = rdp->mynode);
-
-	RCU_TRACE(mask = rdp->grpmask);
-	trace_rcu_grace_period(rsp->name,
-			       rnp->gpnum + 1 - !!(rnp->qsmask & mask),
-			       TPS("cpuofl"));
-}
-
-/*
- * The CPU has been completely removed, and some other CPU is reporting
- * this fact from process context.  Do the remainder of the cleanup,
- * including orphaning the outgoing CPU's RCU callbacks, and also
- * adopting them.  There can only be one CPU hotplug operation at a time,
- * so no other CPU can be attempting to update rcu_cpu_kthread_task.
- */
-static void rcu_cleanup_dead_cpu(int cpu, struct rcu_state *rsp)
-{
-	unsigned long flags;
-	unsigned long mask;
-	int need_report = 0;
-	struct rcu_data *rdp = per_cpu_ptr(rsp->rda, cpu);
-	struct rcu_node *rnp = rdp->mynode;  /* Outgoing CPU's rdp & rnp. */
-
-	/* Adjust any no-longer-needed kthreads. */
-	rcu_boost_kthread_setaffinity(rnp, -1);
-
-	/* Remove the dead CPU from the bitmasks in the rcu_node hierarchy. */
-
-	/* Exclude any attempts to start a new grace period. */
-	mutex_lock(&rsp->onoff_mutex);
-	raw_spin_lock_irqsave(&rsp->orphan_lock, flags);
-
-	/* Orphan the dead CPU's callbacks, and adopt them if appropriate. */
-	rcu_send_cbs_to_orphanage(cpu, rsp, rnp, rdp);
-	rcu_adopt_orphan_cbs(rsp);
-
-	/* Remove the outgoing CPU from the masks in the rcu_node hierarchy. */
-	mask = rdp->grpmask;	/* rnp->grplo is constant. */
-	do {
-		raw_spin_lock(&rnp->lock);	/* irqs already disabled. */
-		rnp->qsmaskinit &= ~mask;
-		if (rnp->qsmaskinit != 0) {
-			if (rnp != rdp->mynode)
-				raw_spin_unlock(&rnp->lock); /* irqs remain disabled. */
-			break;
-		}
-		if (rnp == rdp->mynode)
-			need_report = rcu_preempt_offline_tasks(rsp, rnp, rdp);
-		else
-			raw_spin_unlock(&rnp->lock); /* irqs remain disabled. */
-		mask = rnp->grpmask;
-		rnp = rnp->parent;
-	} while (rnp != NULL);
-
-	/*
-	 * We still hold the leaf rcu_node structure lock here, and
-	 * irqs are still disabled.  The reason for this subterfuge is
-	 * because invoking rcu_report_unblock_qs_rnp() with ->orphan_lock
-	 * held leads to deadlock.
-	 */
-	raw_spin_unlock(&rsp->orphan_lock); /* irqs remain disabled. */
-	rnp = rdp->mynode;
-	if (need_report & RCU_OFL_TASKS_NORM_GP)
-		rcu_report_unblock_qs_rnp(rnp, flags);
-	else
-		raw_spin_unlock_irqrestore(&rnp->lock, flags);
-	if (need_report & RCU_OFL_TASKS_EXP_GP)
-		rcu_report_exp_rnp(rsp, rnp, true);
-	WARN_ONCE(rdp->qlen != 0 || rdp->nxtlist != NULL,
-		  "rcu_cleanup_dead_cpu: Callbacks on offline CPU %d: qlen=%lu, nxtlist=%p\n",
-		  cpu, rdp->qlen, rdp->nxtlist);
-	init_callback_list(rdp);
-	/* Disallow further callbacks on this CPU. */
-	rdp->nxttail[RCU_NEXT_TAIL] = NULL;
-	mutex_unlock(&rsp->onoff_mutex);
-}
-
-#else /* #ifdef CONFIG_HOTPLUG_CPU */
-
-static void rcu_cleanup_dying_cpu(struct rcu_state *rsp)
-{
-}
-
-static void rcu_cleanup_dead_cpu(int cpu, struct rcu_state *rsp)
-{
-}
-
-#endif /* #else #ifdef CONFIG_HOTPLUG_CPU */
-
-/*
- * Invoke any RCU callbacks that have made it to the end of their grace
- * period.  Thottle as specified by rdp->blimit.
- */
-static void rcu_do_batch(struct rcu_state *rsp, struct rcu_data *rdp)
-{
-	unsigned long flags;
-	struct rcu_head *next, *list, **tail;
-	long bl, count, count_lazy;
-	int i;
-
-	/* If no callbacks are ready, just return. */
-	if (!cpu_has_callbacks_ready_to_invoke(rdp)) {
-		trace_rcu_batch_start(rsp->name, rdp->qlen_lazy, rdp->qlen, 0);
-		trace_rcu_batch_end(rsp->name, 0, !!ACCESS_ONCE(rdp->nxtlist),
-				    need_resched(), is_idle_task(current),
-				    rcu_is_callbacks_kthread());
-		return;
-	}
-
-	/*
-	 * Extract the list of ready callbacks, disabling to prevent
-	 * races with call_rcu() from interrupt handlers.
-	 */
-	local_irq_save(flags);
-	WARN_ON_ONCE(cpu_is_offline(smp_processor_id()));
-	bl = rdp->blimit;
-	trace_rcu_batch_start(rsp->name, rdp->qlen_lazy, rdp->qlen, bl);
-	list = rdp->nxtlist;
-	rdp->nxtlist = *rdp->nxttail[RCU_DONE_TAIL];
-	*rdp->nxttail[RCU_DONE_TAIL] = NULL;
-	tail = rdp->nxttail[RCU_DONE_TAIL];
-	for (i = RCU_NEXT_SIZE - 1; i >= 0; i--)
-		if (rdp->nxttail[i] == rdp->nxttail[RCU_DONE_TAIL])
-			rdp->nxttail[i] = &rdp->nxtlist;
-	local_irq_restore(flags);
-
-	/* Invoke callbacks. */
-	count = count_lazy = 0;
-	while (list) {
-		next = list->next;
-		prefetch(next);
-		debug_rcu_head_unqueue(list);
-		if (__rcu_reclaim(rsp->name, list))
-			count_lazy++;
-		list = next;
-		/* Stop only if limit reached and CPU has something to do. */
-		if (++count >= bl &&
-		    (need_resched() ||
-		     (!is_idle_task(current) && !rcu_is_callbacks_kthread())))
-			break;
-	}
-
-	local_irq_save(flags);
-	trace_rcu_batch_end(rsp->name, count, !!list, need_resched(),
-			    is_idle_task(current),
-			    rcu_is_callbacks_kthread());
-
-	/* Update count, and requeue any remaining callbacks. */
-	if (list != NULL) {
-		*tail = rdp->nxtlist;
-		rdp->nxtlist = list;
-		for (i = 0; i < RCU_NEXT_SIZE; i++)
-			if (&rdp->nxtlist == rdp->nxttail[i])
-				rdp->nxttail[i] = tail;
-			else
-				break;
-	}
-	smp_mb(); /* List handling before counting for rcu_barrier(). */
-	rdp->qlen_lazy -= count_lazy;
-	ACCESS_ONCE(rdp->qlen) -= count;
-	rdp->n_cbs_invoked += count;
-
-	/* Reinstate batch limit if we have worked down the excess. */
-	if (rdp->blimit == LONG_MAX && rdp->qlen <= qlowmark)
-		rdp->blimit = blimit;
-
-	/* Reset ->qlen_last_fqs_check trigger if enough CBs have drained. */
-	if (rdp->qlen == 0 && rdp->qlen_last_fqs_check != 0) {
-		rdp->qlen_last_fqs_check = 0;
-		rdp->n_force_qs_snap = rsp->n_force_qs;
-	} else if (rdp->qlen < rdp->qlen_last_fqs_check - qhimark)
-		rdp->qlen_last_fqs_check = rdp->qlen;
-	WARN_ON_ONCE((rdp->nxtlist == NULL) != (rdp->qlen == 0));
-
-	local_irq_restore(flags);
-
-	/* Re-invoke RCU core processing if there are callbacks remaining. */
-	if (cpu_has_callbacks_ready_to_invoke(rdp))
-		invoke_rcu_core();
-}
-
-/*
- * Check to see if this CPU is in a non-context-switch quiescent state
- * (user mode or idle loop for rcu, non-softirq execution for rcu_bh).
- * Also schedule RCU core processing.
- *
- * This function must be called from hardirq context.  It is normally
- * invoked from the scheduling-clock interrupt.  If rcu_pending returns
- * false, there is no point in invoking rcu_check_callbacks().
- */
-void rcu_check_callbacks(int cpu, int user)
-{
-	trace_rcu_utilization(TPS("Start scheduler-tick"));
-	increment_cpu_stall_ticks();
-	if (user || rcu_is_cpu_rrupt_from_idle()) {
-
-		/*
-		 * Get here if this CPU took its interrupt from user
-		 * mode or from the idle loop, and if this is not a
-		 * nested interrupt.  In this case, the CPU is in
-		 * a quiescent state, so note it.
-		 *
-		 * No memory barrier is required here because both
-		 * rcu_sched_qs() and rcu_bh_qs() reference only CPU-local
-		 * variables that other CPUs neither access nor modify,
-		 * at least not while the corresponding CPU is online.
-		 */
-
-		rcu_sched_qs(cpu);
-		rcu_bh_qs(cpu);
-
-	} else if (!in_softirq()) {
-
-		/*
-		 * Get here if this CPU did not take its interrupt from
-		 * softirq, in other words, if it is not interrupting
-		 * a rcu_bh read-side critical section.  This is an _bh
-		 * critical section, so note it.
-		 */
-
-		rcu_bh_qs(cpu);
-	}
-	rcu_preempt_check_callbacks(cpu);
-	if (rcu_pending(cpu))
-		invoke_rcu_core();
-	trace_rcu_utilization(TPS("End scheduler-tick"));
-}
-
-/*
- * Scan the leaf rcu_node structures, processing dyntick state for any that
- * have not yet encountered a quiescent state, using the function specified.
- * Also initiate boosting for any threads blocked on the root rcu_node.
- *
- * The caller must have suppressed start of new grace periods.
- */
-static void force_qs_rnp(struct rcu_state *rsp,
-			 int (*f)(struct rcu_data *rsp, bool *isidle,
-				  unsigned long *maxj),
-			 bool *isidle, unsigned long *maxj)
-{
-	unsigned long bit;
-	int cpu;
-	unsigned long flags;
-	unsigned long mask;
-	struct rcu_node *rnp;
-
-	rcu_for_each_leaf_node(rsp, rnp) {
-		cond_resched();
-		mask = 0;
-		raw_spin_lock_irqsave(&rnp->lock, flags);
-		if (!rcu_gp_in_progress(rsp)) {
-			raw_spin_unlock_irqrestore(&rnp->lock, flags);
-			return;
-		}
-		if (rnp->qsmask == 0) {
-			rcu_initiate_boost(rnp, flags); /* releases rnp->lock */
-			continue;
-		}
-		cpu = rnp->grplo;
-		bit = 1;
-		for (; cpu <= rnp->grphi; cpu++, bit <<= 1) {
-			if ((rnp->qsmask & bit) != 0) {
-				if ((rnp->qsmaskinit & bit) != 0)
-					*isidle = 0;
-				if (f(per_cpu_ptr(rsp->rda, cpu), isidle, maxj))
-					mask |= bit;
-			}
-		}
-		if (mask != 0) {
-
-			/* rcu_report_qs_rnp() releases rnp->lock. */
-			rcu_report_qs_rnp(mask, rsp, rnp, flags);
-			continue;
-		}
-		raw_spin_unlock_irqrestore(&rnp->lock, flags);
-	}
-	rnp = rcu_get_root(rsp);
-	if (rnp->qsmask == 0) {
-		raw_spin_lock_irqsave(&rnp->lock, flags);
-		rcu_initiate_boost(rnp, flags); /* releases rnp->lock. */
-	}
-}
-
-/*
- * Force quiescent states on reluctant CPUs, and also detect which
- * CPUs are in dyntick-idle mode.
- */
-static void force_quiescent_state(struct rcu_state *rsp)
-{
-	unsigned long flags;
-	bool ret;
-	struct rcu_node *rnp;
-	struct rcu_node *rnp_old = NULL;
-
-	/* Funnel through hierarchy to reduce memory contention. */
-	rnp = per_cpu_ptr(rsp->rda, raw_smp_processor_id())->mynode;
-	for (; rnp != NULL; rnp = rnp->parent) {
-		ret = (ACCESS_ONCE(rsp->gp_flags) & RCU_GP_FLAG_FQS) ||
-		      !raw_spin_trylock(&rnp->fqslock);
-		if (rnp_old != NULL)
-			raw_spin_unlock(&rnp_old->fqslock);
-		if (ret) {
-			rsp->n_force_qs_lh++;
-			return;
-		}
-		rnp_old = rnp;
-	}
-	/* rnp_old == rcu_get_root(rsp), rnp == NULL. */
-
-	/* Reached the root of the rcu_node tree, acquire lock. */
-	raw_spin_lock_irqsave(&rnp_old->lock, flags);
-	raw_spin_unlock(&rnp_old->fqslock);
-	if (ACCESS_ONCE(rsp->gp_flags) & RCU_GP_FLAG_FQS) {
-		rsp->n_force_qs_lh++;
-		raw_spin_unlock_irqrestore(&rnp_old->lock, flags);
-		return;  /* Someone beat us to it. */
-	}
-	rsp->gp_flags |= RCU_GP_FLAG_FQS;
-	raw_spin_unlock_irqrestore(&rnp_old->lock, flags);
-	wake_up(&rsp->gp_wq);  /* Memory barrier implied by wake_up() path. */
-}
-
-/*
- * This does the RCU core processing work for the specified rcu_state
- * and rcu_data structures.  This may be called only from the CPU to
- * whom the rdp belongs.
- */
-static void
-__rcu_process_callbacks(struct rcu_state *rsp)
-{
-	unsigned long flags;
-	struct rcu_data *rdp = __this_cpu_ptr(rsp->rda);
-
-	WARN_ON_ONCE(rdp->beenonline == 0);
-
-	/* Update RCU state based on any recent quiescent states. */
-	rcu_check_quiescent_state(rsp, rdp);
-
-	/* Does this CPU require a not-yet-started grace period? */
-	local_irq_save(flags);
-	if (cpu_needs_another_gp(rsp, rdp)) {
-		raw_spin_lock(&rcu_get_root(rsp)->lock); /* irqs disabled. */
-		rcu_start_gp(rsp);
-		raw_spin_unlock_irqrestore(&rcu_get_root(rsp)->lock, flags);
-	} else {
-		local_irq_restore(flags);
-	}
-
-	/* If there are callbacks ready, invoke them. */
-	if (cpu_has_callbacks_ready_to_invoke(rdp))
-		invoke_rcu_callbacks(rsp, rdp);
-}
-
-/*
- * Do RCU core processing for the current CPU.
- */
-static void rcu_process_callbacks(struct softirq_action *unused)
-{
-	struct rcu_state *rsp;
-
-	if (cpu_is_offline(smp_processor_id()))
-		return;
-	trace_rcu_utilization(TPS("Start RCU core"));
-	for_each_rcu_flavor(rsp)
-		__rcu_process_callbacks(rsp);
-	trace_rcu_utilization(TPS("End RCU core"));
-}
-
-/*
- * Schedule RCU callback invocation.  If the specified type of RCU
- * does not support RCU priority boosting, just do a direct call,
- * otherwise wake up the per-CPU kernel kthread.  Note that because we
- * are running on the current CPU with interrupts disabled, the
- * rcu_cpu_kthread_task cannot disappear out from under us.
- */
-static void invoke_rcu_callbacks(struct rcu_state *rsp, struct rcu_data *rdp)
-{
-	if (unlikely(!ACCESS_ONCE(rcu_scheduler_fully_active)))
-		return;
-	if (likely(!rsp->boost)) {
-		rcu_do_batch(rsp, rdp);
-		return;
-	}
-	invoke_rcu_callbacks_kthread();
-}
-
-static void invoke_rcu_core(void)
-{
-	if (cpu_online(smp_processor_id()))
-		raise_softirq(RCU_SOFTIRQ);
-}
-
-/*
- * Handle any core-RCU processing required by a call_rcu() invocation.
- */
-static void __call_rcu_core(struct rcu_state *rsp, struct rcu_data *rdp,
-			    struct rcu_head *head, unsigned long flags)
-{
-	/*
-	 * If called from an extended quiescent state, invoke the RCU
-	 * core in order to force a re-evaluation of RCU's idleness.
-	 */
-	if (!rcu_is_watching() && cpu_online(smp_processor_id()))
-		invoke_rcu_core();
-
-	/* If interrupts were disabled or CPU offline, don't invoke RCU core. */
-	if (irqs_disabled_flags(flags) || cpu_is_offline(smp_processor_id()))
-		return;
-
-	/*
-	 * Force the grace period if too many callbacks or too long waiting.
-	 * Enforce hysteresis, and don't invoke force_quiescent_state()
-	 * if some other CPU has recently done so.  Also, don't bother
-	 * invoking force_quiescent_state() if the newly enqueued callback
-	 * is the only one waiting for a grace period to complete.
-	 */
-	if (unlikely(rdp->qlen > rdp->qlen_last_fqs_check + qhimark)) {
-
-		/* Are we ignoring a completed grace period? */
-		note_gp_changes(rsp, rdp);
-
-		/* Start a new grace period if one not already started. */
-		if (!rcu_gp_in_progress(rsp)) {
-			struct rcu_node *rnp_root = rcu_get_root(rsp);
-
-			raw_spin_lock(&rnp_root->lock);
-			rcu_start_gp(rsp);
-			raw_spin_unlock(&rnp_root->lock);
-		} else {
-			/* Give the grace period a kick. */
-			rdp->blimit = LONG_MAX;
-			if (rsp->n_force_qs == rdp->n_force_qs_snap &&
-			    *rdp->nxttail[RCU_DONE_TAIL] != head)
-				force_quiescent_state(rsp);
-			rdp->n_force_qs_snap = rsp->n_force_qs;
-			rdp->qlen_last_fqs_check = rdp->qlen;
-		}
-	}
-}
-
-/*
- * RCU callback function to leak a callback.
- */
-static void rcu_leak_callback(struct rcu_head *rhp)
-{
-}
-
-/*
- * Helper function for call_rcu() and friends.  The cpu argument will
- * normally be -1, indicating "currently running CPU".  It may specify
- * a CPU only if that CPU is a no-CBs CPU.  Currently, only _rcu_barrier()
- * is expected to specify a CPU.
- */
-static void
-__call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu),
-	   struct rcu_state *rsp, int cpu, bool lazy)
-{
-	unsigned long flags;
-	struct rcu_data *rdp;
-
-	WARN_ON_ONCE((unsigned long)head & 0x3); /* Misaligned rcu_head! */
-	if (debug_rcu_head_queue(head)) {
-		/* Probable double call_rcu(), so leak the callback. */
-		ACCESS_ONCE(head->func) = rcu_leak_callback;
-		WARN_ONCE(1, "__call_rcu(): Leaked duplicate callback\n");
-		return;
-	}
-	head->func = func;
-	head->next = NULL;
-
-	/*
-	 * Opportunistically note grace-period endings and beginnings.
-	 * Note that we might see a beginning right after we see an
-	 * end, but never vice versa, since this CPU has to pass through
-	 * a quiescent state betweentimes.
-	 */
-	local_irq_save(flags);
-	rdp = this_cpu_ptr(rsp->rda);
-
-	/* Add the callback to our list. */
-	if (unlikely(rdp->nxttail[RCU_NEXT_TAIL] == NULL) || cpu != -1) {
-		int offline;
-
-		if (cpu != -1)
-			rdp = per_cpu_ptr(rsp->rda, cpu);
-		offline = !__call_rcu_nocb(rdp, head, lazy);
-		WARN_ON_ONCE(offline);
-		/* _call_rcu() is illegal on offline CPU; leak the callback. */
-		local_irq_restore(flags);
-		return;
-	}
-	ACCESS_ONCE(rdp->qlen)++;
-	if (lazy)
-		rdp->qlen_lazy++;
-	else
-		rcu_idle_count_callbacks_posted();
-	smp_mb();  /* Count before adding callback for rcu_barrier(). */
-	*rdp->nxttail[RCU_NEXT_TAIL] = head;
-	rdp->nxttail[RCU_NEXT_TAIL] = &head->next;
-
-	if (__is_kfree_rcu_offset((unsigned long)func))
-		trace_rcu_kfree_callback(rsp->name, head, (unsigned long)func,
-					 rdp->qlen_lazy, rdp->qlen);
-	else
-		trace_rcu_callback(rsp->name, head, rdp->qlen_lazy, rdp->qlen);
-
-	/* Go handle any RCU core processing required. */
-	__call_rcu_core(rsp, rdp, head, flags);
-	local_irq_restore(flags);
-}
-
-/*
- * Queue an RCU-sched callback for invocation after a grace period.
- */
-void call_rcu_sched(struct rcu_head *head, void (*func)(struct rcu_head *rcu))
-{
-	__call_rcu(head, func, &rcu_sched_state, -1, 0);
-}
-EXPORT_SYMBOL_GPL(call_rcu_sched);
-
-/*
- * Queue an RCU callback for invocation after a quicker grace period.
- */
-void call_rcu_bh(struct rcu_head *head, void (*func)(struct rcu_head *rcu))
-{
-	__call_rcu(head, func, &rcu_bh_state, -1, 0);
-}
-EXPORT_SYMBOL_GPL(call_rcu_bh);
-
-/*
- * Because a context switch is a grace period for RCU-sched and RCU-bh,
- * any blocking grace-period wait automatically implies a grace period
- * if there is only one CPU online at any point time during execution
- * of either synchronize_sched() or synchronize_rcu_bh().  It is OK to
- * occasionally incorrectly indicate that there are multiple CPUs online
- * when there was in fact only one the whole time, as this just adds
- * some overhead: RCU still operates correctly.
- */
-static inline int rcu_blocking_is_gp(void)
-{
-	int ret;
-
-	might_sleep();  /* Check for RCU read-side critical section. */
-	preempt_disable();
-	ret = num_online_cpus() <= 1;
-	preempt_enable();
-	return ret;
-}
-
-/**
- * synchronize_sched - wait until an rcu-sched grace period has elapsed.
- *
- * Control will return to the caller some time after a full rcu-sched
- * grace period has elapsed, in other words after all currently executing
- * rcu-sched read-side critical sections have completed.   These read-side
- * critical sections are delimited by rcu_read_lock_sched() and
- * rcu_read_unlock_sched(), and may be nested.  Note that preempt_disable(),
- * local_irq_disable(), and so on may be used in place of
- * rcu_read_lock_sched().
- *
- * This means that all preempt_disable code sequences, including NMI and
- * non-threaded hardware-interrupt handlers, in progress on entry will
- * have completed before this primitive returns.  However, this does not
- * guarantee that softirq handlers will have completed, since in some
- * kernels, these handlers can run in process context, and can block.
- *
- * Note that this guarantee implies further memory-ordering guarantees.
- * On systems with more than one CPU, when synchronize_sched() returns,
- * each CPU is guaranteed to have executed a full memory barrier since the
- * end of its last RCU-sched read-side critical section whose beginning
- * preceded the call to synchronize_sched().  In addition, each CPU having
- * an RCU read-side critical section that extends beyond the return from
- * synchronize_sched() is guaranteed to have executed a full memory barrier
- * after the beginning of synchronize_sched() and before the beginning of
- * that RCU read-side critical section.  Note that these guarantees include
- * CPUs that are offline, idle, or executing in user mode, as well as CPUs
- * that are executing in the kernel.
- *
- * Furthermore, if CPU A invoked synchronize_sched(), which returned
- * to its caller on CPU B, then both CPU A and CPU B are guaranteed
- * to have executed a full memory barrier during the execution of
- * synchronize_sched() -- even if CPU A and CPU B are the same CPU (but
- * again only if the system has more than one CPU).
- *
- * This primitive provides the guarantees made by the (now removed)
- * synchronize_kernel() API.  In contrast, synchronize_rcu() only
- * guarantees that rcu_read_lock() sections will have completed.
- * In "classic RCU", these two guarantees happen to be one and
- * the same, but can differ in realtime RCU implementations.
- */
-void synchronize_sched(void)
-{
-	rcu_lockdep_assert(!lock_is_held(&rcu_bh_lock_map) &&
-			   !lock_is_held(&rcu_lock_map) &&
-			   !lock_is_held(&rcu_sched_lock_map),
-			   "Illegal synchronize_sched() in RCU-sched read-side critical section");
-	if (rcu_blocking_is_gp())
-		return;
-	if (rcu_expedited)
-		synchronize_sched_expedited();
-	else
-		wait_rcu_gp(call_rcu_sched);
-}
-EXPORT_SYMBOL_GPL(synchronize_sched);
-
-/**
- * synchronize_rcu_bh - wait until an rcu_bh grace period has elapsed.
- *
- * Control will return to the caller some time after a full rcu_bh grace
- * period has elapsed, in other words after all currently executing rcu_bh
- * read-side critical sections have completed.  RCU read-side critical
- * sections are delimited by rcu_read_lock_bh() and rcu_read_unlock_bh(),
- * and may be nested.
- *
- * See the description of synchronize_sched() for more detailed information
- * on memory ordering guarantees.
- */
-void synchronize_rcu_bh(void)
-{
-	rcu_lockdep_assert(!lock_is_held(&rcu_bh_lock_map) &&
-			   !lock_is_held(&rcu_lock_map) &&
-			   !lock_is_held(&rcu_sched_lock_map),
-			   "Illegal synchronize_rcu_bh() in RCU-bh read-side critical section");
-	if (rcu_blocking_is_gp())
-		return;
-	if (rcu_expedited)
-		synchronize_rcu_bh_expedited();
-	else
-		wait_rcu_gp(call_rcu_bh);
-}
-EXPORT_SYMBOL_GPL(synchronize_rcu_bh);
-
-static int synchronize_sched_expedited_cpu_stop(void *data)
-{
-	/*
-	 * There must be a full memory barrier on each affected CPU
-	 * between the time that try_stop_cpus() is called and the
-	 * time that it returns.
-	 *
-	 * In the current initial implementation of cpu_stop, the
-	 * above condition is already met when the control reaches
-	 * this point and the following smp_mb() is not strictly
-	 * necessary.  Do smp_mb() anyway for documentation and
-	 * robustness against future implementation changes.
-	 */
-	smp_mb(); /* See above comment block. */
-	return 0;
-}
-
-/**
- * synchronize_sched_expedited - Brute-force RCU-sched grace period
- *
- * Wait for an RCU-sched grace period to elapse, but use a "big hammer"
- * approach to force the grace period to end quickly.  This consumes
- * significant time on all CPUs and is unfriendly to real-time workloads,
- * so is thus not recommended for any sort of common-case code.  In fact,
- * if you are using synchronize_sched_expedited() in a loop, please
- * restructure your code to batch your updates, and then use a single
- * synchronize_sched() instead.
- *
- * Note that it is illegal to call this function while holding any lock
- * that is acquired by a CPU-hotplug notifier.  And yes, it is also illegal
- * to call this function from a CPU-hotplug notifier.  Failing to observe
- * these restriction will result in deadlock.
- *
- * This implementation can be thought of as an application of ticket
- * locking to RCU, with sync_sched_expedited_started and
- * sync_sched_expedited_done taking on the roles of the halves
- * of the ticket-lock word.  Each task atomically increments
- * sync_sched_expedited_started upon entry, snapshotting the old value,
- * then attempts to stop all the CPUs.  If this succeeds, then each
- * CPU will have executed a context switch, resulting in an RCU-sched
- * grace period.  We are then done, so we use atomic_cmpxchg() to
- * update sync_sched_expedited_done to match our snapshot -- but
- * only if someone else has not already advanced past our snapshot.
- *
- * On the other hand, if try_stop_cpus() fails, we check the value
- * of sync_sched_expedited_done.  If it has advanced past our
- * initial snapshot, then someone else must have forced a grace period
- * some time after we took our snapshot.  In this case, our work is
- * done for us, and we can simply return.  Otherwise, we try again,
- * but keep our initial snapshot for purposes of checking for someone
- * doing our work for us.
- *
- * If we fail too many times in a row, we fall back to synchronize_sched().
- */
-void synchronize_sched_expedited(void)
-{
-	long firstsnap, s, snap;
-	int trycount = 0;
-	struct rcu_state *rsp = &rcu_sched_state;
-
-	/*
-	 * If we are in danger of counter wrap, just do synchronize_sched().
-	 * By allowing sync_sched_expedited_started to advance no more than
-	 * ULONG_MAX/8 ahead of sync_sched_expedited_done, we are ensuring
-	 * that more than 3.5 billion CPUs would be required to force a
-	 * counter wrap on a 32-bit system.  Quite a few more CPUs would of
-	 * course be required on a 64-bit system.
-	 */
-	if (ULONG_CMP_GE((ulong)atomic_long_read(&rsp->expedited_start),
-			 (ulong)atomic_long_read(&rsp->expedited_done) +
-			 ULONG_MAX / 8)) {
-		synchronize_sched();
-		atomic_long_inc(&rsp->expedited_wrap);
-		return;
-	}
-
-	/*
-	 * Take a ticket.  Note that atomic_inc_return() implies a
-	 * full memory barrier.
-	 */
-	snap = atomic_long_inc_return(&rsp->expedited_start);
-	firstsnap = snap;
-	get_online_cpus();
-	WARN_ON_ONCE(cpu_is_offline(raw_smp_processor_id()));
-
-	/*
-	 * Each pass through the following loop attempts to force a
-	 * context switch on each CPU.
-	 */
-	while (try_stop_cpus(cpu_online_mask,
-			     synchronize_sched_expedited_cpu_stop,
-			     NULL) == -EAGAIN) {
-		put_online_cpus();
-		atomic_long_inc(&rsp->expedited_tryfail);
-
-		/* Check to see if someone else did our work for us. */
-		s = atomic_long_read(&rsp->expedited_done);
-		if (ULONG_CMP_GE((ulong)s, (ulong)firstsnap)) {
-			/* ensure test happens before caller kfree */
-			smp_mb__before_atomic_inc(); /* ^^^ */
-			atomic_long_inc(&rsp->expedited_workdone1);
-			return;
-		}
-
-		/* No joy, try again later.  Or just synchronize_sched(). */
-		if (trycount++ < 10) {
-			udelay(trycount * num_online_cpus());
-		} else {
-			wait_rcu_gp(call_rcu_sched);
-			atomic_long_inc(&rsp->expedited_normal);
-			return;
-		}
-
-		/* Recheck to see if someone else did our work for us. */
-		s = atomic_long_read(&rsp->expedited_done);
-		if (ULONG_CMP_GE((ulong)s, (ulong)firstsnap)) {
-			/* ensure test happens before caller kfree */
-			smp_mb__before_atomic_inc(); /* ^^^ */
-			atomic_long_inc(&rsp->expedited_workdone2);
-			return;
-		}
-
-		/*
-		 * Refetching sync_sched_expedited_started allows later
-		 * callers to piggyback on our grace period.  We retry
-		 * after they started, so our grace period works for them,
-		 * and they started after our first try, so their grace
-		 * period works for us.
-		 */
-		get_online_cpus();
-		snap = atomic_long_read(&rsp->expedited_start);
-		smp_mb(); /* ensure read is before try_stop_cpus(). */
-	}
-	atomic_long_inc(&rsp->expedited_stoppedcpus);
-
-	/*
-	 * Everyone up to our most recent fetch is covered by our grace
-	 * period.  Update the counter, but only if our work is still
-	 * relevant -- which it won't be if someone who started later
-	 * than we did already did their update.
-	 */
-	do {
-		atomic_long_inc(&rsp->expedited_done_tries);
-		s = atomic_long_read(&rsp->expedited_done);
-		if (ULONG_CMP_GE((ulong)s, (ulong)snap)) {
-			/* ensure test happens before caller kfree */
-			smp_mb__before_atomic_inc(); /* ^^^ */
-			atomic_long_inc(&rsp->expedited_done_lost);
-			break;
-		}
-	} while (atomic_long_cmpxchg(&rsp->expedited_done, s, snap) != s);
-	atomic_long_inc(&rsp->expedited_done_exit);
-
-	put_online_cpus();
-}
-EXPORT_SYMBOL_GPL(synchronize_sched_expedited);
-
-/*
- * Check to see if there is any immediate RCU-related work to be done
- * by the current CPU, for the specified type of RCU, returning 1 if so.
- * The checks are in order of increasing expense: checks that can be
- * carried out against CPU-local state are performed first.  However,
- * we must check for CPU stalls first, else we might not get a chance.
- */
-static int __rcu_pending(struct rcu_state *rsp, struct rcu_data *rdp)
-{
-	struct rcu_node *rnp = rdp->mynode;
-
-	rdp->n_rcu_pending++;
-
-	/* Check for CPU stalls, if enabled. */
-	check_cpu_stall(rsp, rdp);
-
-	/* Is the RCU core waiting for a quiescent state from this CPU? */
-	if (rcu_scheduler_fully_active &&
-	    rdp->qs_pending && !rdp->passed_quiesce) {
-		rdp->n_rp_qs_pending++;
-	} else if (rdp->qs_pending && rdp->passed_quiesce) {
-		rdp->n_rp_report_qs++;
-		return 1;
-	}
-
-	/* Does this CPU have callbacks ready to invoke? */
-	if (cpu_has_callbacks_ready_to_invoke(rdp)) {
-		rdp->n_rp_cb_ready++;
-		return 1;
-	}
-
-	/* Has RCU gone idle with this CPU needing another grace period? */
-	if (cpu_needs_another_gp(rsp, rdp)) {
-		rdp->n_rp_cpu_needs_gp++;
-		return 1;
-	}
-
-	/* Has another RCU grace period completed?  */
-	if (ACCESS_ONCE(rnp->completed) != rdp->completed) { /* outside lock */
-		rdp->n_rp_gp_completed++;
-		return 1;
-	}
-
-	/* Has a new RCU grace period started? */
-	if (ACCESS_ONCE(rnp->gpnum) != rdp->gpnum) { /* outside lock */
-		rdp->n_rp_gp_started++;
-		return 1;
-	}
-
-	/* nothing to do */
-	rdp->n_rp_need_nothing++;
-	return 0;
-}
-
-/*
- * Check to see if there is any immediate RCU-related work to be done
- * by the current CPU, returning 1 if so.  This function is part of the
- * RCU implementation; it is -not- an exported member of the RCU API.
- */
-static int rcu_pending(int cpu)
-{
-	struct rcu_state *rsp;
-
-	for_each_rcu_flavor(rsp)
-		if (__rcu_pending(rsp, per_cpu_ptr(rsp->rda, cpu)))
-			return 1;
-	return 0;
-}
-
-/*
- * Return true if the specified CPU has any callback.  If all_lazy is
- * non-NULL, store an indication of whether all callbacks are lazy.
- * (If there are no callbacks, all of them are deemed to be lazy.)
- */
-static int rcu_cpu_has_callbacks(int cpu, bool *all_lazy)
-{
-	bool al = true;
-	bool hc = false;
-	struct rcu_data *rdp;
-	struct rcu_state *rsp;
-
-	for_each_rcu_flavor(rsp) {
-		rdp = per_cpu_ptr(rsp->rda, cpu);
-		if (!rdp->nxtlist)
-			continue;
-		hc = true;
-		if (rdp->qlen != rdp->qlen_lazy || !all_lazy) {
-			al = false;
-			break;
-		}
-	}
-	if (all_lazy)
-		*all_lazy = al;
-	return hc;
-}
-
-/*
- * Helper function for _rcu_barrier() tracing.  If tracing is disabled,
- * the compiler is expected to optimize this away.
- */
-static void _rcu_barrier_trace(struct rcu_state *rsp, const char *s,
-			       int cpu, unsigned long done)
-{
-	trace_rcu_barrier(rsp->name, s, cpu,
-			  atomic_read(&rsp->barrier_cpu_count), done);
-}
-
-/*
- * RCU callback function for _rcu_barrier().  If we are last, wake
- * up the task executing _rcu_barrier().
- */
-static void rcu_barrier_callback(struct rcu_head *rhp)
-{
-	struct rcu_data *rdp = container_of(rhp, struct rcu_data, barrier_head);
-	struct rcu_state *rsp = rdp->rsp;
-
-	if (atomic_dec_and_test(&rsp->barrier_cpu_count)) {
-		_rcu_barrier_trace(rsp, "LastCB", -1, rsp->n_barrier_done);
-		complete(&rsp->barrier_completion);
-	} else {
-		_rcu_barrier_trace(rsp, "CB", -1, rsp->n_barrier_done);
-	}
-}
-
-/*
- * Called with preemption disabled, and from cross-cpu IRQ context.
- */
-static void rcu_barrier_func(void *type)
-{
-	struct rcu_state *rsp = type;
-	struct rcu_data *rdp = __this_cpu_ptr(rsp->rda);
-
-	_rcu_barrier_trace(rsp, "IRQ", -1, rsp->n_barrier_done);
-	atomic_inc(&rsp->barrier_cpu_count);
-	rsp->call(&rdp->barrier_head, rcu_barrier_callback);
-}
-
-/*
- * Orchestrate the specified type of RCU barrier, waiting for all
- * RCU callbacks of the specified type to complete.
- */
-static void _rcu_barrier(struct rcu_state *rsp)
-{
-	int cpu;
-	struct rcu_data *rdp;
-	unsigned long snap = ACCESS_ONCE(rsp->n_barrier_done);
-	unsigned long snap_done;
-
-	_rcu_barrier_trace(rsp, "Begin", -1, snap);
-
-	/* Take mutex to serialize concurrent rcu_barrier() requests. */
-	mutex_lock(&rsp->barrier_mutex);
-
-	/*
-	 * Ensure that all prior references, including to ->n_barrier_done,
-	 * are ordered before the _rcu_barrier() machinery.
-	 */
-	smp_mb();  /* See above block comment. */
-
-	/*
-	 * Recheck ->n_barrier_done to see if others did our work for us.
-	 * This means checking ->n_barrier_done for an even-to-odd-to-even
-	 * transition.  The "if" expression below therefore rounds the old
-	 * value up to the next even number and adds two before comparing.
-	 */
-	snap_done = rsp->n_barrier_done;
-	_rcu_barrier_trace(rsp, "Check", -1, snap_done);
-
-	/*
-	 * If the value in snap is odd, we needed to wait for the current
-	 * rcu_barrier() to complete, then wait for the next one, in other
-	 * words, we need the value of snap_done to be three larger than
-	 * the value of snap.  On the other hand, if the value in snap is
-	 * even, we only had to wait for the next rcu_barrier() to complete,
-	 * in other words, we need the value of snap_done to be only two
-	 * greater than the value of snap.  The "(snap + 3) & ~0x1" computes
-	 * this for us (thank you, Linus!).
-	 */
-	if (ULONG_CMP_GE(snap_done, (snap + 3) & ~0x1)) {
-		_rcu_barrier_trace(rsp, "EarlyExit", -1, snap_done);
-		smp_mb(); /* caller's subsequent code after above check. */
-		mutex_unlock(&rsp->barrier_mutex);
-		return;
-	}
-
-	/*
-	 * Increment ->n_barrier_done to avoid duplicate work.  Use
-	 * ACCESS_ONCE() to prevent the compiler from speculating
-	 * the increment to precede the early-exit check.
-	 */
-	ACCESS_ONCE(rsp->n_barrier_done)++;
-	WARN_ON_ONCE((rsp->n_barrier_done & 0x1) != 1);
-	_rcu_barrier_trace(rsp, "Inc1", -1, rsp->n_barrier_done);
-	smp_mb(); /* Order ->n_barrier_done increment with below mechanism. */
-
-	/*
-	 * Initialize the count to one rather than to zero in order to
-	 * avoid a too-soon return to zero in case of a short grace period
-	 * (or preemption of this task).  Exclude CPU-hotplug operations
-	 * to ensure that no offline CPU has callbacks queued.
-	 */
-	init_completion(&rsp->barrier_completion);
-	atomic_set(&rsp->barrier_cpu_count, 1);
-	get_online_cpus();
-
-	/*
-	 * Force each CPU with callbacks to register a new callback.
-	 * When that callback is invoked, we will know that all of the
-	 * corresponding CPU's preceding callbacks have been invoked.
-	 */
-	for_each_possible_cpu(cpu) {
-		if (!cpu_online(cpu) && !rcu_is_nocb_cpu(cpu))
-			continue;
-		rdp = per_cpu_ptr(rsp->rda, cpu);
-		if (rcu_is_nocb_cpu(cpu)) {
-			_rcu_barrier_trace(rsp, "OnlineNoCB", cpu,
-					   rsp->n_barrier_done);
-			atomic_inc(&rsp->barrier_cpu_count);
-			__call_rcu(&rdp->barrier_head, rcu_barrier_callback,
-				   rsp, cpu, 0);
-		} else if (ACCESS_ONCE(rdp->qlen)) {
-			_rcu_barrier_trace(rsp, "OnlineQ", cpu,
-					   rsp->n_barrier_done);
-			smp_call_function_single(cpu, rcu_barrier_func, rsp, 1);
-		} else {
-			_rcu_barrier_trace(rsp, "OnlineNQ", cpu,
-					   rsp->n_barrier_done);
-		}
-	}
-	put_online_cpus();
-
-	/*
-	 * Now that we have an rcu_barrier_callback() callback on each
-	 * CPU, and thus each counted, remove the initial count.
-	 */
-	if (atomic_dec_and_test(&rsp->barrier_cpu_count))
-		complete(&rsp->barrier_completion);
-
-	/* Increment ->n_barrier_done to prevent duplicate work. */
-	smp_mb(); /* Keep increment after above mechanism. */
-	ACCESS_ONCE(rsp->n_barrier_done)++;
-	WARN_ON_ONCE((rsp->n_barrier_done & 0x1) != 0);
-	_rcu_barrier_trace(rsp, "Inc2", -1, rsp->n_barrier_done);
-	smp_mb(); /* Keep increment before caller's subsequent code. */
-
-	/* Wait for all rcu_barrier_callback() callbacks to be invoked. */
-	wait_for_completion(&rsp->barrier_completion);
-
-	/* Other rcu_barrier() invocations can now safely proceed. */
-	mutex_unlock(&rsp->barrier_mutex);
-}
-
-/**
- * rcu_barrier_bh - Wait until all in-flight call_rcu_bh() callbacks complete.
- */
-void rcu_barrier_bh(void)
-{
-	_rcu_barrier(&rcu_bh_state);
-}
-EXPORT_SYMBOL_GPL(rcu_barrier_bh);
-
-/**
- * rcu_barrier_sched - Wait for in-flight call_rcu_sched() callbacks.
- */
-void rcu_barrier_sched(void)
-{
-	_rcu_barrier(&rcu_sched_state);
-}
-EXPORT_SYMBOL_GPL(rcu_barrier_sched);
-
-/*
- * Do boot-time initialization of a CPU's per-CPU RCU data.
- */
-static void __init
-rcu_boot_init_percpu_data(int cpu, struct rcu_state *rsp)
-{
-	unsigned long flags;
-	struct rcu_data *rdp = per_cpu_ptr(rsp->rda, cpu);
-	struct rcu_node *rnp = rcu_get_root(rsp);
-
-	/* Set up local state, ensuring consistent view of global state. */
-	raw_spin_lock_irqsave(&rnp->lock, flags);
-	rdp->grpmask = 1UL << (cpu - rdp->mynode->grplo);
-	init_callback_list(rdp);
-	rdp->qlen_lazy = 0;
-	ACCESS_ONCE(rdp->qlen) = 0;
-	rdp->dynticks = &per_cpu(rcu_dynticks, cpu);
-	WARN_ON_ONCE(rdp->dynticks->dynticks_nesting != DYNTICK_TASK_EXIT_IDLE);
-	WARN_ON_ONCE(atomic_read(&rdp->dynticks->dynticks) != 1);
-	rdp->cpu = cpu;
-	rdp->rsp = rsp;
-	rcu_boot_init_nocb_percpu_data(rdp);
-	raw_spin_unlock_irqrestore(&rnp->lock, flags);
-}
-
-/*
- * Initialize a CPU's per-CPU RCU data.  Note that only one online or
- * offline event can be happening at a given time.  Note also that we
- * can accept some slop in the rsp->completed access due to the fact
- * that this CPU cannot possibly have any RCU callbacks in flight yet.
- */
-static void
-rcu_init_percpu_data(int cpu, struct rcu_state *rsp, int preemptible)
-{
-	unsigned long flags;
-	unsigned long mask;
-	struct rcu_data *rdp = per_cpu_ptr(rsp->rda, cpu);
-	struct rcu_node *rnp = rcu_get_root(rsp);
-
-	/* Exclude new grace periods. */
-	mutex_lock(&rsp->onoff_mutex);
-
-	/* Set up local state, ensuring consistent view of global state. */
-	raw_spin_lock_irqsave(&rnp->lock, flags);
-	rdp->beenonline = 1;	 /* We have now been online. */
-	rdp->preemptible = preemptible;
-	rdp->qlen_last_fqs_check = 0;
-	rdp->n_force_qs_snap = rsp->n_force_qs;
-	rdp->blimit = blimit;
-	init_callback_list(rdp);  /* Re-enable callbacks on this CPU. */
-	rdp->dynticks->dynticks_nesting = DYNTICK_TASK_EXIT_IDLE;
-	rcu_sysidle_init_percpu_data(rdp->dynticks);
-	atomic_set(&rdp->dynticks->dynticks,
-		   (atomic_read(&rdp->dynticks->dynticks) & ~0x1) + 1);
-	raw_spin_unlock(&rnp->lock);		/* irqs remain disabled. */
-
-	/* Add CPU to rcu_node bitmasks. */
-	rnp = rdp->mynode;
-	mask = rdp->grpmask;
-	do {
-		/* Exclude any attempts to start a new GP on small systems. */
-		raw_spin_lock(&rnp->lock);	/* irqs already disabled. */
-		rnp->qsmaskinit |= mask;
-		mask = rnp->grpmask;
-		if (rnp == rdp->mynode) {
-			/*
-			 * If there is a grace period in progress, we will
-			 * set up to wait for it next time we run the
-			 * RCU core code.
-			 */
-			rdp->gpnum = rnp->completed;
-			rdp->completed = rnp->completed;
-			rdp->passed_quiesce = 0;
-			rdp->qs_pending = 0;
-			trace_rcu_grace_period(rsp->name, rdp->gpnum, TPS("cpuonl"));
-		}
-		raw_spin_unlock(&rnp->lock); /* irqs already disabled. */
-		rnp = rnp->parent;
-	} while (rnp != NULL && !(rnp->qsmaskinit & mask));
-	local_irq_restore(flags);
-
-	mutex_unlock(&rsp->onoff_mutex);
-}
-
-static void rcu_prepare_cpu(int cpu)
-{
-	struct rcu_state *rsp;
-
-	for_each_rcu_flavor(rsp)
-		rcu_init_percpu_data(cpu, rsp,
-				     strcmp(rsp->name, "rcu_preempt") == 0);
-}
-
-/*
- * Handle CPU online/offline notification events.
- */
-static int rcu_cpu_notify(struct notifier_block *self,
-				    unsigned long action, void *hcpu)
-{
-	long cpu = (long)hcpu;
-	struct rcu_data *rdp = per_cpu_ptr(rcu_state->rda, cpu);
-	struct rcu_node *rnp = rdp->mynode;
-	struct rcu_state *rsp;
-
-	trace_rcu_utilization(TPS("Start CPU hotplug"));
-	switch (action) {
-	case CPU_UP_PREPARE:
-	case CPU_UP_PREPARE_FROZEN:
-		rcu_prepare_cpu(cpu);
-		rcu_prepare_kthreads(cpu);
-		break;
-	case CPU_ONLINE:
-	case CPU_DOWN_FAILED:
-		rcu_boost_kthread_setaffinity(rnp, -1);
-		break;
-	case CPU_DOWN_PREPARE:
-		rcu_boost_kthread_setaffinity(rnp, cpu);
-		break;
-	case CPU_DYING:
-	case CPU_DYING_FROZEN:
-		for_each_rcu_flavor(rsp)
-			rcu_cleanup_dying_cpu(rsp);
-		break;
-	case CPU_DEAD:
-	case CPU_DEAD_FROZEN:
-	case CPU_UP_CANCELED:
-	case CPU_UP_CANCELED_FROZEN:
-		for_each_rcu_flavor(rsp)
-			rcu_cleanup_dead_cpu(cpu, rsp);
-		break;
-	default:
-		break;
-	}
-	trace_rcu_utilization(TPS("End CPU hotplug"));
-	return NOTIFY_OK;
-}
-
-static int rcu_pm_notify(struct notifier_block *self,
-			 unsigned long action, void *hcpu)
-{
-	switch (action) {
-	case PM_HIBERNATION_PREPARE:
-	case PM_SUSPEND_PREPARE:
-		if (nr_cpu_ids <= 256) /* Expediting bad for large systems. */
-			rcu_expedited = 1;
-		break;
-	case PM_POST_HIBERNATION:
-	case PM_POST_SUSPEND:
-		rcu_expedited = 0;
-		break;
-	default:
-		break;
-	}
-	return NOTIFY_OK;
-}
-
-/*
- * Spawn the kthread that handles this RCU flavor's grace periods.
- */
-static int __init rcu_spawn_gp_kthread(void)
-{
-	unsigned long flags;
-	struct rcu_node *rnp;
-	struct rcu_state *rsp;
-	struct task_struct *t;
-
-	for_each_rcu_flavor(rsp) {
-		t = kthread_run(rcu_gp_kthread, rsp, "%s", rsp->name);
-		BUG_ON(IS_ERR(t));
-		rnp = rcu_get_root(rsp);
-		raw_spin_lock_irqsave(&rnp->lock, flags);
-		rsp->gp_kthread = t;
-		raw_spin_unlock_irqrestore(&rnp->lock, flags);
-		rcu_spawn_nocb_kthreads(rsp);
-	}
-	return 0;
-}
-early_initcall(rcu_spawn_gp_kthread);
-
-/*
- * This function is invoked towards the end of the scheduler's initialization
- * process.  Before this is called, the idle task might contain
- * RCU read-side critical sections (during which time, this idle
- * task is booting the system).  After this function is called, the
- * idle tasks are prohibited from containing RCU read-side critical
- * sections.  This function also enables RCU lockdep checking.
- */
-void rcu_scheduler_starting(void)
-{
-	WARN_ON(num_online_cpus() != 1);
-	WARN_ON(nr_context_switches() > 0);
-	rcu_scheduler_active = 1;
-}
-
-/*
- * Compute the per-level fanout, either using the exact fanout specified
- * or balancing the tree, depending on CONFIG_RCU_FANOUT_EXACT.
- */
-#ifdef CONFIG_RCU_FANOUT_EXACT
-static void __init rcu_init_levelspread(struct rcu_state *rsp)
-{
-	int i;
-
-	for (i = rcu_num_lvls - 1; i > 0; i--)
-		rsp->levelspread[i] = CONFIG_RCU_FANOUT;
-	rsp->levelspread[0] = rcu_fanout_leaf;
-}
-#else /* #ifdef CONFIG_RCU_FANOUT_EXACT */
-static void __init rcu_init_levelspread(struct rcu_state *rsp)
-{
-	int ccur;
-	int cprv;
-	int i;
-
-	cprv = nr_cpu_ids;
-	for (i = rcu_num_lvls - 1; i >= 0; i--) {
-		ccur = rsp->levelcnt[i];
-		rsp->levelspread[i] = (cprv + ccur - 1) / ccur;
-		cprv = ccur;
-	}
-}
-#endif /* #else #ifdef CONFIG_RCU_FANOUT_EXACT */
-
-/*
- * Helper function for rcu_init() that initializes one rcu_state structure.
- */
-static void __init rcu_init_one(struct rcu_state *rsp,
-		struct rcu_data __percpu *rda)
-{
-	static char *buf[] = { "rcu_node_0",
-			       "rcu_node_1",
-			       "rcu_node_2",
-			       "rcu_node_3" };  /* Match MAX_RCU_LVLS */
-	static char *fqs[] = { "rcu_node_fqs_0",
-			       "rcu_node_fqs_1",
-			       "rcu_node_fqs_2",
-			       "rcu_node_fqs_3" };  /* Match MAX_RCU_LVLS */
-	int cpustride = 1;
-	int i;
-	int j;
-	struct rcu_node *rnp;
-
-	BUILD_BUG_ON(MAX_RCU_LVLS > ARRAY_SIZE(buf));  /* Fix buf[] init! */
-
-	/* Silence gcc 4.8 warning about array index out of range. */
-	if (rcu_num_lvls > RCU_NUM_LVLS)
-		panic("rcu_init_one: rcu_num_lvls overflow");
-
-	/* Initialize the level-tracking arrays. */
-
-	for (i = 0; i < rcu_num_lvls; i++)
-		rsp->levelcnt[i] = num_rcu_lvl[i];
-	for (i = 1; i < rcu_num_lvls; i++)
-		rsp->level[i] = rsp->level[i - 1] + rsp->levelcnt[i - 1];
-	rcu_init_levelspread(rsp);
-
-	/* Initialize the elements themselves, starting from the leaves. */
-
-	for (i = rcu_num_lvls - 1; i >= 0; i--) {
-		cpustride *= rsp->levelspread[i];
-		rnp = rsp->level[i];
-		for (j = 0; j < rsp->levelcnt[i]; j++, rnp++) {
-			raw_spin_lock_init(&rnp->lock);
-			lockdep_set_class_and_name(&rnp->lock,
-						   &rcu_node_class[i], buf[i]);
-			raw_spin_lock_init(&rnp->fqslock);
-			lockdep_set_class_and_name(&rnp->fqslock,
-						   &rcu_fqs_class[i], fqs[i]);
-			rnp->gpnum = rsp->gpnum;
-			rnp->completed = rsp->completed;
-			rnp->qsmask = 0;
-			rnp->qsmaskinit = 0;
-			rnp->grplo = j * cpustride;
-			rnp->grphi = (j + 1) * cpustride - 1;
-			if (rnp->grphi >= NR_CPUS)
-				rnp->grphi = NR_CPUS - 1;
-			if (i == 0) {
-				rnp->grpnum = 0;
-				rnp->grpmask = 0;
-				rnp->parent = NULL;
-			} else {
-				rnp->grpnum = j % rsp->levelspread[i - 1];
-				rnp->grpmask = 1UL << rnp->grpnum;
-				rnp->parent = rsp->level[i - 1] +
-					      j / rsp->levelspread[i - 1];
-			}
-			rnp->level = i;
-			INIT_LIST_HEAD(&rnp->blkd_tasks);
-			rcu_init_one_nocb(rnp);
-		}
-	}
-
-	rsp->rda = rda;
-	init_waitqueue_head(&rsp->gp_wq);
-	init_irq_work(&rsp->wakeup_work, rsp_wakeup);
-	rnp = rsp->level[rcu_num_lvls - 1];
-	for_each_possible_cpu(i) {
-		while (i > rnp->grphi)
-			rnp++;
-		per_cpu_ptr(rsp->rda, i)->mynode = rnp;
-		rcu_boot_init_percpu_data(i, rsp);
-	}
-	list_add(&rsp->flavors, &rcu_struct_flavors);
-}
-
-/*
- * Compute the rcu_node tree geometry from kernel parameters.  This cannot
- * replace the definitions in rcutree.h because those are needed to size
- * the ->node array in the rcu_state structure.
- */
-static void __init rcu_init_geometry(void)
-{
-	ulong d;
-	int i;
-	int j;
-	int n = nr_cpu_ids;
-	int rcu_capacity[MAX_RCU_LVLS + 1];
-
-	/*
-	 * Initialize any unspecified boot parameters.
-	 * The default values of jiffies_till_first_fqs and
-	 * jiffies_till_next_fqs are set to the RCU_JIFFIES_TILL_FORCE_QS
-	 * value, which is a function of HZ, then adding one for each
-	 * RCU_JIFFIES_FQS_DIV CPUs that might be on the system.
-	 */
-	d = RCU_JIFFIES_TILL_FORCE_QS + nr_cpu_ids / RCU_JIFFIES_FQS_DIV;
-	if (jiffies_till_first_fqs == ULONG_MAX)
-		jiffies_till_first_fqs = d;
-	if (jiffies_till_next_fqs == ULONG_MAX)
-		jiffies_till_next_fqs = d;
-
-	/* If the compile-time values are accurate, just leave. */
-	if (rcu_fanout_leaf == CONFIG_RCU_FANOUT_LEAF &&
-	    nr_cpu_ids == NR_CPUS)
-		return;
-
-	/*
-	 * Compute number of nodes that can be handled an rcu_node tree
-	 * with the given number of levels.  Setting rcu_capacity[0] makes
-	 * some of the arithmetic easier.
-	 */
-	rcu_capacity[0] = 1;
-	rcu_capacity[1] = rcu_fanout_leaf;
-	for (i = 2; i <= MAX_RCU_LVLS; i++)
-		rcu_capacity[i] = rcu_capacity[i - 1] * CONFIG_RCU_FANOUT;
-
-	/*
-	 * The boot-time rcu_fanout_leaf parameter is only permitted
-	 * to increase the leaf-level fanout, not decrease it.  Of course,
-	 * the leaf-level fanout cannot exceed the number of bits in
-	 * the rcu_node masks.  Finally, the tree must be able to accommodate
-	 * the configured number of CPUs.  Complain and fall back to the
-	 * compile-time values if these limits are exceeded.
-	 */
-	if (rcu_fanout_leaf < CONFIG_RCU_FANOUT_LEAF ||
-	    rcu_fanout_leaf > sizeof(unsigned long) * 8 ||
-	    n > rcu_capacity[MAX_RCU_LVLS]) {
-		WARN_ON(1);
-		return;
-	}
-
-	/* Calculate the number of rcu_nodes at each level of the tree. */
-	for (i = 1; i <= MAX_RCU_LVLS; i++)
-		if (n <= rcu_capacity[i]) {
-			for (j = 0; j <= i; j++)
-				num_rcu_lvl[j] =
-					DIV_ROUND_UP(n, rcu_capacity[i - j]);
-			rcu_num_lvls = i;
-			for (j = i + 1; j <= MAX_RCU_LVLS; j++)
-				num_rcu_lvl[j] = 0;
-			break;
-		}
-
-	/* Calculate the total number of rcu_node structures. */
-	rcu_num_nodes = 0;
-	for (i = 0; i <= MAX_RCU_LVLS; i++)
-		rcu_num_nodes += num_rcu_lvl[i];
-	rcu_num_nodes -= n;
-}
-
-void __init rcu_init(void)
-{
-	int cpu;
-
-	rcu_bootup_announce();
-	rcu_init_geometry();
-	rcu_init_one(&rcu_bh_state, &rcu_bh_data);
-	rcu_init_one(&rcu_sched_state, &rcu_sched_data);
-	__rcu_init_preempt();
-	open_softirq(RCU_SOFTIRQ, rcu_process_callbacks);
-
-	/*
-	 * We don't need protection against CPU-hotplug here because
-	 * this is called early in boot, before either interrupts
-	 * or the scheduler are operational.
-	 */
-	cpu_notifier(rcu_cpu_notify, 0);
-	pm_notifier(rcu_pm_notify, 0);
-	for_each_online_cpu(cpu)
-		rcu_cpu_notify(NULL, CPU_UP_PREPARE, (void *)(long)cpu);
-}
-
-#include "rcutree_plugin.h"
diff --git a/kernel/rcutree.h b/kernel/rcutree.h
deleted file mode 100644
index 52be957c9fe2..000000000000
--- a/kernel/rcutree.h
+++ /dev/null
@@ -1,585 +0,0 @@
-/*
- * Read-Copy Update mechanism for mutual exclusion (tree-based version)
- * Internal non-public definitions.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright IBM Corporation, 2008
- *
- * Author: Ingo Molnar <mingo@elte.hu>
- *	   Paul E. McKenney <paulmck@linux.vnet.ibm.com>
- */
-
-#include <linux/cache.h>
-#include <linux/spinlock.h>
-#include <linux/threads.h>
-#include <linux/cpumask.h>
-#include <linux/seqlock.h>
-#include <linux/irq_work.h>
-
-/*
- * Define shape of hierarchy based on NR_CPUS, CONFIG_RCU_FANOUT, and
- * CONFIG_RCU_FANOUT_LEAF.
- * In theory, it should be possible to add more levels straightforwardly.
- * In practice, this did work well going from three levels to four.
- * Of course, your mileage may vary.
- */
-#define MAX_RCU_LVLS 4
-#define RCU_FANOUT_1	      (CONFIG_RCU_FANOUT_LEAF)
-#define RCU_FANOUT_2	      (RCU_FANOUT_1 * CONFIG_RCU_FANOUT)
-#define RCU_FANOUT_3	      (RCU_FANOUT_2 * CONFIG_RCU_FANOUT)
-#define RCU_FANOUT_4	      (RCU_FANOUT_3 * CONFIG_RCU_FANOUT)
-
-#if NR_CPUS <= RCU_FANOUT_1
-#  define RCU_NUM_LVLS	      1
-#  define NUM_RCU_LVL_0	      1
-#  define NUM_RCU_LVL_1	      (NR_CPUS)
-#  define NUM_RCU_LVL_2	      0
-#  define NUM_RCU_LVL_3	      0
-#  define NUM_RCU_LVL_4	      0
-#elif NR_CPUS <= RCU_FANOUT_2
-#  define RCU_NUM_LVLS	      2
-#  define NUM_RCU_LVL_0	      1
-#  define NUM_RCU_LVL_1	      DIV_ROUND_UP(NR_CPUS, RCU_FANOUT_1)
-#  define NUM_RCU_LVL_2	      (NR_CPUS)
-#  define NUM_RCU_LVL_3	      0
-#  define NUM_RCU_LVL_4	      0
-#elif NR_CPUS <= RCU_FANOUT_3
-#  define RCU_NUM_LVLS	      3
-#  define NUM_RCU_LVL_0	      1
-#  define NUM_RCU_LVL_1	      DIV_ROUND_UP(NR_CPUS, RCU_FANOUT_2)
-#  define NUM_RCU_LVL_2	      DIV_ROUND_UP(NR_CPUS, RCU_FANOUT_1)
-#  define NUM_RCU_LVL_3	      (NR_CPUS)
-#  define NUM_RCU_LVL_4	      0
-#elif NR_CPUS <= RCU_FANOUT_4
-#  define RCU_NUM_LVLS	      4
-#  define NUM_RCU_LVL_0	      1
-#  define NUM_RCU_LVL_1	      DIV_ROUND_UP(NR_CPUS, RCU_FANOUT_3)
-#  define NUM_RCU_LVL_2	      DIV_ROUND_UP(NR_CPUS, RCU_FANOUT_2)
-#  define NUM_RCU_LVL_3	      DIV_ROUND_UP(NR_CPUS, RCU_FANOUT_1)
-#  define NUM_RCU_LVL_4	      (NR_CPUS)
-#else
-# error "CONFIG_RCU_FANOUT insufficient for NR_CPUS"
-#endif /* #if (NR_CPUS) <= RCU_FANOUT_1 */
-
-#define RCU_SUM (NUM_RCU_LVL_0 + NUM_RCU_LVL_1 + NUM_RCU_LVL_2 + NUM_RCU_LVL_3 + NUM_RCU_LVL_4)
-#define NUM_RCU_NODES (RCU_SUM - NR_CPUS)
-
-extern int rcu_num_lvls;
-extern int rcu_num_nodes;
-
-/*
- * Dynticks per-CPU state.
- */
-struct rcu_dynticks {
-	long long dynticks_nesting; /* Track irq/process nesting level. */
-				    /* Process level is worth LLONG_MAX/2. */
-	int dynticks_nmi_nesting;   /* Track NMI nesting level. */
-	atomic_t dynticks;	    /* Even value for idle, else odd. */
-#ifdef CONFIG_NO_HZ_FULL_SYSIDLE
-	long long dynticks_idle_nesting;
-				    /* irq/process nesting level from idle. */
-	atomic_t dynticks_idle;	    /* Even value for idle, else odd. */
-				    /*  "Idle" excludes userspace execution. */
-	unsigned long dynticks_idle_jiffies;
-				    /* End of last non-NMI non-idle period. */
-#endif /* #ifdef CONFIG_NO_HZ_FULL_SYSIDLE */
-#ifdef CONFIG_RCU_FAST_NO_HZ
-	bool all_lazy;		    /* Are all CPU's CBs lazy? */
-	unsigned long nonlazy_posted;
-				    /* # times non-lazy CBs posted to CPU. */
-	unsigned long nonlazy_posted_snap;
-				    /* idle-period nonlazy_posted snapshot. */
-	unsigned long last_accelerate;
-				    /* Last jiffy CBs were accelerated. */
-	unsigned long last_advance_all;
-				    /* Last jiffy CBs were all advanced. */
-	int tick_nohz_enabled_snap; /* Previously seen value from sysfs. */
-#endif /* #ifdef CONFIG_RCU_FAST_NO_HZ */
-};
-
-/* RCU's kthread states for tracing. */
-#define RCU_KTHREAD_STOPPED  0
-#define RCU_KTHREAD_RUNNING  1
-#define RCU_KTHREAD_WAITING  2
-#define RCU_KTHREAD_OFFCPU   3
-#define RCU_KTHREAD_YIELDING 4
-#define RCU_KTHREAD_MAX      4
-
-/*
- * Definition for node within the RCU grace-period-detection hierarchy.
- */
-struct rcu_node {
-	raw_spinlock_t lock;	/* Root rcu_node's lock protects some */
-				/*  rcu_state fields as well as following. */
-	unsigned long gpnum;	/* Current grace period for this node. */
-				/*  This will either be equal to or one */
-				/*  behind the root rcu_node's gpnum. */
-	unsigned long completed; /* Last GP completed for this node. */
-				/*  This will either be equal to or one */
-				/*  behind the root rcu_node's gpnum. */
-	unsigned long qsmask;	/* CPUs or groups that need to switch in */
-				/*  order for current grace period to proceed.*/
-				/*  In leaf rcu_node, each bit corresponds to */
-				/*  an rcu_data structure, otherwise, each */
-				/*  bit corresponds to a child rcu_node */
-				/*  structure. */
-	unsigned long expmask;	/* Groups that have ->blkd_tasks */
-				/*  elements that need to drain to allow the */
-				/*  current expedited grace period to */
-				/*  complete (only for TREE_PREEMPT_RCU). */
-	unsigned long qsmaskinit;
-				/* Per-GP initial value for qsmask & expmask. */
-	unsigned long grpmask;	/* Mask to apply to parent qsmask. */
-				/*  Only one bit will be set in this mask. */
-	int	grplo;		/* lowest-numbered CPU or group here. */
-	int	grphi;		/* highest-numbered CPU or group here. */
-	u8	grpnum;		/* CPU/group number for next level up. */
-	u8	level;		/* root is at level 0. */
-	struct rcu_node *parent;
-	struct list_head blkd_tasks;
-				/* Tasks blocked in RCU read-side critical */
-				/*  section.  Tasks are placed at the head */
-				/*  of this list and age towards the tail. */
-	struct list_head *gp_tasks;
-				/* Pointer to the first task blocking the */
-				/*  current grace period, or NULL if there */
-				/*  is no such task. */
-	struct list_head *exp_tasks;
-				/* Pointer to the first task blocking the */
-				/*  current expedited grace period, or NULL */
-				/*  if there is no such task.  If there */
-				/*  is no current expedited grace period, */
-				/*  then there can cannot be any such task. */
-#ifdef CONFIG_RCU_BOOST
-	struct list_head *boost_tasks;
-				/* Pointer to first task that needs to be */
-				/*  priority boosted, or NULL if no priority */
-				/*  boosting is needed for this rcu_node */
-				/*  structure.  If there are no tasks */
-				/*  queued on this rcu_node structure that */
-				/*  are blocking the current grace period, */
-				/*  there can be no such task. */
-	unsigned long boost_time;
-				/* When to start boosting (jiffies). */
-	struct task_struct *boost_kthread_task;
-				/* kthread that takes care of priority */
-				/*  boosting for this rcu_node structure. */
-	unsigned int boost_kthread_status;
-				/* State of boost_kthread_task for tracing. */
-	unsigned long n_tasks_boosted;
-				/* Total number of tasks boosted. */
-	unsigned long n_exp_boosts;
-				/* Number of tasks boosted for expedited GP. */
-	unsigned long n_normal_boosts;
-				/* Number of tasks boosted for normal GP. */
-	unsigned long n_balk_blkd_tasks;
-				/* Refused to boost: no blocked tasks. */
-	unsigned long n_balk_exp_gp_tasks;
-				/* Refused to boost: nothing blocking GP. */
-	unsigned long n_balk_boost_tasks;
-				/* Refused to boost: already boosting. */
-	unsigned long n_balk_notblocked;
-				/* Refused to boost: RCU RS CS still running. */
-	unsigned long n_balk_notyet;
-				/* Refused to boost: not yet time. */
-	unsigned long n_balk_nos;
-				/* Refused to boost: not sure why, though. */
-				/*  This can happen due to race conditions. */
-#endif /* #ifdef CONFIG_RCU_BOOST */
-#ifdef CONFIG_RCU_NOCB_CPU
-	wait_queue_head_t nocb_gp_wq[2];
-				/* Place for rcu_nocb_kthread() to wait GP. */
-#endif /* #ifdef CONFIG_RCU_NOCB_CPU */
-	int need_future_gp[2];
-				/* Counts of upcoming no-CB GP requests. */
-	raw_spinlock_t fqslock ____cacheline_internodealigned_in_smp;
-} ____cacheline_internodealigned_in_smp;
-
-/*
- * Do a full breadth-first scan of the rcu_node structures for the
- * specified rcu_state structure.
- */
-#define rcu_for_each_node_breadth_first(rsp, rnp) \
-	for ((rnp) = &(rsp)->node[0]; \
-	     (rnp) < &(rsp)->node[rcu_num_nodes]; (rnp)++)
-
-/*
- * Do a breadth-first scan of the non-leaf rcu_node structures for the
- * specified rcu_state structure.  Note that if there is a singleton
- * rcu_node tree with but one rcu_node structure, this loop is a no-op.
- */
-#define rcu_for_each_nonleaf_node_breadth_first(rsp, rnp) \
-	for ((rnp) = &(rsp)->node[0]; \
-	     (rnp) < (rsp)->level[rcu_num_lvls - 1]; (rnp)++)
-
-/*
- * Scan the leaves of the rcu_node hierarchy for the specified rcu_state
- * structure.  Note that if there is a singleton rcu_node tree with but
- * one rcu_node structure, this loop -will- visit the rcu_node structure.
- * It is still a leaf node, even if it is also the root node.
- */
-#define rcu_for_each_leaf_node(rsp, rnp) \
-	for ((rnp) = (rsp)->level[rcu_num_lvls - 1]; \
-	     (rnp) < &(rsp)->node[rcu_num_nodes]; (rnp)++)
-
-/* Index values for nxttail array in struct rcu_data. */
-#define RCU_DONE_TAIL		0	/* Also RCU_WAIT head. */
-#define RCU_WAIT_TAIL		1	/* Also RCU_NEXT_READY head. */
-#define RCU_NEXT_READY_TAIL	2	/* Also RCU_NEXT head. */
-#define RCU_NEXT_TAIL		3
-#define RCU_NEXT_SIZE		4
-
-/* Per-CPU data for read-copy update. */
-struct rcu_data {
-	/* 1) quiescent-state and grace-period handling : */
-	unsigned long	completed;	/* Track rsp->completed gp number */
-					/*  in order to detect GP end. */
-	unsigned long	gpnum;		/* Highest gp number that this CPU */
-					/*  is aware of having started. */
-	bool		passed_quiesce;	/* User-mode/idle loop etc. */
-	bool		qs_pending;	/* Core waits for quiesc state. */
-	bool		beenonline;	/* CPU online at least once. */
-	bool		preemptible;	/* Preemptible RCU? */
-	struct rcu_node *mynode;	/* This CPU's leaf of hierarchy */
-	unsigned long grpmask;		/* Mask to apply to leaf qsmask. */
-#ifdef CONFIG_RCU_CPU_STALL_INFO
-	unsigned long	ticks_this_gp;	/* The number of scheduling-clock */
-					/*  ticks this CPU has handled */
-					/*  during and after the last grace */
-					/* period it is aware of. */
-#endif /* #ifdef CONFIG_RCU_CPU_STALL_INFO */
-
-	/* 2) batch handling */
-	/*
-	 * If nxtlist is not NULL, it is partitioned as follows.
-	 * Any of the partitions might be empty, in which case the
-	 * pointer to that partition will be equal to the pointer for
-	 * the following partition.  When the list is empty, all of
-	 * the nxttail elements point to the ->nxtlist pointer itself,
-	 * which in that case is NULL.
-	 *
-	 * [nxtlist, *nxttail[RCU_DONE_TAIL]):
-	 *	Entries that batch # <= ->completed
-	 *	The grace period for these entries has completed, and
-	 *	the other grace-period-completed entries may be moved
-	 *	here temporarily in rcu_process_callbacks().
-	 * [*nxttail[RCU_DONE_TAIL], *nxttail[RCU_WAIT_TAIL]):
-	 *	Entries that batch # <= ->completed - 1: waiting for current GP
-	 * [*nxttail[RCU_WAIT_TAIL], *nxttail[RCU_NEXT_READY_TAIL]):
-	 *	Entries known to have arrived before current GP ended
-	 * [*nxttail[RCU_NEXT_READY_TAIL], *nxttail[RCU_NEXT_TAIL]):
-	 *	Entries that might have arrived after current GP ended
-	 *	Note that the value of *nxttail[RCU_NEXT_TAIL] will
-	 *	always be NULL, as this is the end of the list.
-	 */
-	struct rcu_head *nxtlist;
-	struct rcu_head **nxttail[RCU_NEXT_SIZE];
-	unsigned long	nxtcompleted[RCU_NEXT_SIZE];
-					/* grace periods for sublists. */
-	long		qlen_lazy;	/* # of lazy queued callbacks */
-	long		qlen;		/* # of queued callbacks, incl lazy */
-	long		qlen_last_fqs_check;
-					/* qlen at last check for QS forcing */
-	unsigned long	n_cbs_invoked;	/* count of RCU cbs invoked. */
-	unsigned long	n_nocbs_invoked; /* count of no-CBs RCU cbs invoked. */
-	unsigned long   n_cbs_orphaned; /* RCU cbs orphaned by dying CPU */
-	unsigned long   n_cbs_adopted;  /* RCU cbs adopted from dying CPU */
-	unsigned long	n_force_qs_snap;
-					/* did other CPU force QS recently? */
-	long		blimit;		/* Upper limit on a processed batch */
-
-	/* 3) dynticks interface. */
-	struct rcu_dynticks *dynticks;	/* Shared per-CPU dynticks state. */
-	int dynticks_snap;		/* Per-GP tracking for dynticks. */
-
-	/* 4) reasons this CPU needed to be kicked by force_quiescent_state */
-	unsigned long dynticks_fqs;	/* Kicked due to dynticks idle. */
-	unsigned long offline_fqs;	/* Kicked due to being offline. */
-
-	/* 5) __rcu_pending() statistics. */
-	unsigned long n_rcu_pending;	/* rcu_pending() calls since boot. */
-	unsigned long n_rp_qs_pending;
-	unsigned long n_rp_report_qs;
-	unsigned long n_rp_cb_ready;
-	unsigned long n_rp_cpu_needs_gp;
-	unsigned long n_rp_gp_completed;
-	unsigned long n_rp_gp_started;
-	unsigned long n_rp_need_nothing;
-
-	/* 6) _rcu_barrier() and OOM callbacks. */
-	struct rcu_head barrier_head;
-#ifdef CONFIG_RCU_FAST_NO_HZ
-	struct rcu_head oom_head;
-#endif /* #ifdef CONFIG_RCU_FAST_NO_HZ */
-
-	/* 7) Callback offloading. */
-#ifdef CONFIG_RCU_NOCB_CPU
-	struct rcu_head *nocb_head;	/* CBs waiting for kthread. */
-	struct rcu_head **nocb_tail;
-	atomic_long_t nocb_q_count;	/* # CBs waiting for kthread */
-	atomic_long_t nocb_q_count_lazy; /*  (approximate). */
-	int nocb_p_count;		/* # CBs being invoked by kthread */
-	int nocb_p_count_lazy;		/*  (approximate). */
-	wait_queue_head_t nocb_wq;	/* For nocb kthreads to sleep on. */
-	struct task_struct *nocb_kthread;
-#endif /* #ifdef CONFIG_RCU_NOCB_CPU */
-
-	/* 8) RCU CPU stall data. */
-#ifdef CONFIG_RCU_CPU_STALL_INFO
-	unsigned int softirq_snap;	/* Snapshot of softirq activity. */
-#endif /* #ifdef CONFIG_RCU_CPU_STALL_INFO */
-
-	int cpu;
-	struct rcu_state *rsp;
-};
-
-/* Values for fqs_state field in struct rcu_state. */
-#define RCU_GP_IDLE		0	/* No grace period in progress. */
-#define RCU_GP_INIT		1	/* Grace period being initialized. */
-#define RCU_SAVE_DYNTICK	2	/* Need to scan dyntick state. */
-#define RCU_FORCE_QS		3	/* Need to force quiescent state. */
-#define RCU_SIGNAL_INIT		RCU_SAVE_DYNTICK
-
-#define RCU_JIFFIES_TILL_FORCE_QS (1 + (HZ > 250) + (HZ > 500))
-					/* For jiffies_till_first_fqs and */
-					/*  and jiffies_till_next_fqs. */
-
-#define RCU_JIFFIES_FQS_DIV	256	/* Very large systems need more */
-					/*  delay between bouts of */
-					/*  quiescent-state forcing. */
-
-#define RCU_STALL_RAT_DELAY	2	/* Allow other CPUs time to take */
-					/*  at least one scheduling clock */
-					/*  irq before ratting on them. */
-
-#define rcu_wait(cond)							\
-do {									\
-	for (;;) {							\
-		set_current_state(TASK_INTERRUPTIBLE);			\
-		if (cond)						\
-			break;						\
-		schedule();						\
-	}								\
-	__set_current_state(TASK_RUNNING);				\
-} while (0)
-
-/*
- * RCU global state, including node hierarchy.  This hierarchy is
- * represented in "heap" form in a dense array.  The root (first level)
- * of the hierarchy is in ->node[0] (referenced by ->level[0]), the second
- * level in ->node[1] through ->node[m] (->node[1] referenced by ->level[1]),
- * and the third level in ->node[m+1] and following (->node[m+1] referenced
- * by ->level[2]).  The number of levels is determined by the number of
- * CPUs and by CONFIG_RCU_FANOUT.  Small systems will have a "hierarchy"
- * consisting of a single rcu_node.
- */
-struct rcu_state {
-	struct rcu_node node[NUM_RCU_NODES];	/* Hierarchy. */
-	struct rcu_node *level[RCU_NUM_LVLS];	/* Hierarchy levels. */
-	u32 levelcnt[MAX_RCU_LVLS + 1];		/* # nodes in each level. */
-	u8 levelspread[RCU_NUM_LVLS];		/* kids/node in each level. */
-	struct rcu_data __percpu *rda;		/* pointer of percu rcu_data. */
-	void (*call)(struct rcu_head *head,	/* call_rcu() flavor. */
-		     void (*func)(struct rcu_head *head));
-
-	/* The following fields are guarded by the root rcu_node's lock. */
-
-	u8	fqs_state ____cacheline_internodealigned_in_smp;
-						/* Force QS state. */
-	u8	boost;				/* Subject to priority boost. */
-	unsigned long gpnum;			/* Current gp number. */
-	unsigned long completed;		/* # of last completed gp. */
-	struct task_struct *gp_kthread;		/* Task for grace periods. */
-	wait_queue_head_t gp_wq;		/* Where GP task waits. */
-	int gp_flags;				/* Commands for GP task. */
-
-	/* End of fields guarded by root rcu_node's lock. */
-
-	raw_spinlock_t orphan_lock ____cacheline_internodealigned_in_smp;
-						/* Protect following fields. */
-	struct rcu_head *orphan_nxtlist;	/* Orphaned callbacks that */
-						/*  need a grace period. */
-	struct rcu_head **orphan_nxttail;	/* Tail of above. */
-	struct rcu_head *orphan_donelist;	/* Orphaned callbacks that */
-						/*  are ready to invoke. */
-	struct rcu_head **orphan_donetail;	/* Tail of above. */
-	long qlen_lazy;				/* Number of lazy callbacks. */
-	long qlen;				/* Total number of callbacks. */
-	/* End of fields guarded by orphan_lock. */
-
-	struct mutex onoff_mutex;		/* Coordinate hotplug & GPs. */
-
-	struct mutex barrier_mutex;		/* Guards barrier fields. */
-	atomic_t barrier_cpu_count;		/* # CPUs waiting on. */
-	struct completion barrier_completion;	/* Wake at barrier end. */
-	unsigned long n_barrier_done;		/* ++ at start and end of */
-						/*  _rcu_barrier(). */
-	/* End of fields guarded by barrier_mutex. */
-
-	atomic_long_t expedited_start;		/* Starting ticket. */
-	atomic_long_t expedited_done;		/* Done ticket. */
-	atomic_long_t expedited_wrap;		/* # near-wrap incidents. */
-	atomic_long_t expedited_tryfail;	/* # acquisition failures. */
-	atomic_long_t expedited_workdone1;	/* # done by others #1. */
-	atomic_long_t expedited_workdone2;	/* # done by others #2. */
-	atomic_long_t expedited_normal;		/* # fallbacks to normal. */
-	atomic_long_t expedited_stoppedcpus;	/* # successful stop_cpus. */
-	atomic_long_t expedited_done_tries;	/* # tries to update _done. */
-	atomic_long_t expedited_done_lost;	/* # times beaten to _done. */
-	atomic_long_t expedited_done_exit;	/* # times exited _done loop. */
-
-	unsigned long jiffies_force_qs;		/* Time at which to invoke */
-						/*  force_quiescent_state(). */
-	unsigned long n_force_qs;		/* Number of calls to */
-						/*  force_quiescent_state(). */
-	unsigned long n_force_qs_lh;		/* ~Number of calls leaving */
-						/*  due to lock unavailable. */
-	unsigned long n_force_qs_ngp;		/* Number of calls leaving */
-						/*  due to no GP active. */
-	unsigned long gp_start;			/* Time at which GP started, */
-						/*  but in jiffies. */
-	unsigned long jiffies_stall;		/* Time at which to check */
-						/*  for CPU stalls. */
-	unsigned long gp_max;			/* Maximum GP duration in */
-						/*  jiffies. */
-	const char *name;			/* Name of structure. */
-	char abbr;				/* Abbreviated name. */
-	struct list_head flavors;		/* List of RCU flavors. */
-	struct irq_work wakeup_work;		/* Postponed wakeups */
-};
-
-/* Values for rcu_state structure's gp_flags field. */
-#define RCU_GP_FLAG_INIT 0x1	/* Need grace-period initialization. */
-#define RCU_GP_FLAG_FQS  0x2	/* Need grace-period quiescent-state forcing. */
-
-extern struct list_head rcu_struct_flavors;
-
-/* Sequence through rcu_state structures for each RCU flavor. */
-#define for_each_rcu_flavor(rsp) \
-	list_for_each_entry((rsp), &rcu_struct_flavors, flavors)
-
-/* Return values for rcu_preempt_offline_tasks(). */
-
-#define RCU_OFL_TASKS_NORM_GP	0x1		/* Tasks blocking normal */
-						/*  GP were moved to root. */
-#define RCU_OFL_TASKS_EXP_GP	0x2		/* Tasks blocking expedited */
-						/*  GP were moved to root. */
-
-/*
- * RCU implementation internal declarations:
- */
-extern struct rcu_state rcu_sched_state;
-DECLARE_PER_CPU(struct rcu_data, rcu_sched_data);
-
-extern struct rcu_state rcu_bh_state;
-DECLARE_PER_CPU(struct rcu_data, rcu_bh_data);
-
-#ifdef CONFIG_TREE_PREEMPT_RCU
-extern struct rcu_state rcu_preempt_state;
-DECLARE_PER_CPU(struct rcu_data, rcu_preempt_data);
-#endif /* #ifdef CONFIG_TREE_PREEMPT_RCU */
-
-#ifdef CONFIG_RCU_BOOST
-DECLARE_PER_CPU(unsigned int, rcu_cpu_kthread_status);
-DECLARE_PER_CPU(int, rcu_cpu_kthread_cpu);
-DECLARE_PER_CPU(unsigned int, rcu_cpu_kthread_loops);
-DECLARE_PER_CPU(char, rcu_cpu_has_work);
-#endif /* #ifdef CONFIG_RCU_BOOST */
-
-#ifndef RCU_TREE_NONCORE
-
-/* Forward declarations for rcutree_plugin.h */
-static void rcu_bootup_announce(void);
-long rcu_batches_completed(void);
-static void rcu_preempt_note_context_switch(int cpu);
-static int rcu_preempt_blocked_readers_cgp(struct rcu_node *rnp);
-#ifdef CONFIG_HOTPLUG_CPU
-static void rcu_report_unblock_qs_rnp(struct rcu_node *rnp,
-				      unsigned long flags);
-#endif /* #ifdef CONFIG_HOTPLUG_CPU */
-static void rcu_print_detail_task_stall(struct rcu_state *rsp);
-static int rcu_print_task_stall(struct rcu_node *rnp);
-static void rcu_preempt_check_blocked_tasks(struct rcu_node *rnp);
-#ifdef CONFIG_HOTPLUG_CPU
-static int rcu_preempt_offline_tasks(struct rcu_state *rsp,
-				     struct rcu_node *rnp,
-				     struct rcu_data *rdp);
-#endif /* #ifdef CONFIG_HOTPLUG_CPU */
-static void rcu_preempt_check_callbacks(int cpu);
-void call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu));
-#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_TREE_PREEMPT_RCU)
-static void rcu_report_exp_rnp(struct rcu_state *rsp, struct rcu_node *rnp,
-			       bool wake);
-#endif /* #if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_TREE_PREEMPT_RCU) */
-static void __init __rcu_init_preempt(void);
-static void rcu_initiate_boost(struct rcu_node *rnp, unsigned long flags);
-static void rcu_preempt_boost_start_gp(struct rcu_node *rnp);
-static void invoke_rcu_callbacks_kthread(void);
-static bool rcu_is_callbacks_kthread(void);
-#ifdef CONFIG_RCU_BOOST
-static void rcu_preempt_do_callbacks(void);
-static int rcu_spawn_one_boost_kthread(struct rcu_state *rsp,
-						 struct rcu_node *rnp);
-#endif /* #ifdef CONFIG_RCU_BOOST */
-static void rcu_prepare_kthreads(int cpu);
-static void rcu_cleanup_after_idle(int cpu);
-static void rcu_prepare_for_idle(int cpu);
-static void rcu_idle_count_callbacks_posted(void);
-static void print_cpu_stall_info_begin(void);
-static void print_cpu_stall_info(struct rcu_state *rsp, int cpu);
-static void print_cpu_stall_info_end(void);
-static void zero_cpu_stall_ticks(struct rcu_data *rdp);
-static void increment_cpu_stall_ticks(void);
-static int rcu_nocb_needs_gp(struct rcu_state *rsp);
-static void rcu_nocb_gp_set(struct rcu_node *rnp, int nrq);
-static void rcu_nocb_gp_cleanup(struct rcu_state *rsp, struct rcu_node *rnp);
-static void rcu_init_one_nocb(struct rcu_node *rnp);
-static bool __call_rcu_nocb(struct rcu_data *rdp, struct rcu_head *rhp,
-			    bool lazy);
-static bool rcu_nocb_adopt_orphan_cbs(struct rcu_state *rsp,
-				      struct rcu_data *rdp);
-static void rcu_boot_init_nocb_percpu_data(struct rcu_data *rdp);
-static void rcu_spawn_nocb_kthreads(struct rcu_state *rsp);
-static void rcu_kick_nohz_cpu(int cpu);
-static bool init_nocb_callback_list(struct rcu_data *rdp);
-static void rcu_sysidle_enter(struct rcu_dynticks *rdtp, int irq);
-static void rcu_sysidle_exit(struct rcu_dynticks *rdtp, int irq);
-static void rcu_sysidle_check_cpu(struct rcu_data *rdp, bool *isidle,
-				  unsigned long *maxj);
-static bool is_sysidle_rcu_state(struct rcu_state *rsp);
-static void rcu_sysidle_report_gp(struct rcu_state *rsp, int isidle,
-				  unsigned long maxj);
-static void rcu_bind_gp_kthread(void);
-static void rcu_sysidle_init_percpu_data(struct rcu_dynticks *rdtp);
-
-#endif /* #ifndef RCU_TREE_NONCORE */
-
-#ifdef CONFIG_RCU_TRACE
-#ifdef CONFIG_RCU_NOCB_CPU
-/* Sum up queue lengths for tracing. */
-static inline void rcu_nocb_q_lengths(struct rcu_data *rdp, long *ql, long *qll)
-{
-	*ql = atomic_long_read(&rdp->nocb_q_count) + rdp->nocb_p_count;
-	*qll = atomic_long_read(&rdp->nocb_q_count_lazy) + rdp->nocb_p_count_lazy;
-}
-#else /* #ifdef CONFIG_RCU_NOCB_CPU */
-static inline void rcu_nocb_q_lengths(struct rcu_data *rdp, long *ql, long *qll)
-{
-	*ql = 0;
-	*qll = 0;
-}
-#endif /* #else #ifdef CONFIG_RCU_NOCB_CPU */
-#endif /* #ifdef CONFIG_RCU_TRACE */
diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h
deleted file mode 100644
index 8d85a5ce093a..000000000000
--- a/kernel/rcutree_plugin.h
+++ /dev/null
@@ -1,2831 +0,0 @@
-/*
- * Read-Copy Update mechanism for mutual exclusion (tree-based version)
- * Internal non-public definitions that provide either classic
- * or preemptible semantics.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright Red Hat, 2009
- * Copyright IBM Corporation, 2009
- *
- * Author: Ingo Molnar <mingo@elte.hu>
- *	   Paul E. McKenney <paulmck@linux.vnet.ibm.com>
- */
-
-#include <linux/delay.h>
-#include <linux/gfp.h>
-#include <linux/oom.h>
-#include <linux/smpboot.h>
-#include "time/tick-internal.h"
-
-#define RCU_KTHREAD_PRIO 1
-
-#ifdef CONFIG_RCU_BOOST
-#define RCU_BOOST_PRIO CONFIG_RCU_BOOST_PRIO
-#else
-#define RCU_BOOST_PRIO RCU_KTHREAD_PRIO
-#endif
-
-#ifdef CONFIG_RCU_NOCB_CPU
-static cpumask_var_t rcu_nocb_mask; /* CPUs to have callbacks offloaded. */
-static bool have_rcu_nocb_mask;	    /* Was rcu_nocb_mask allocated? */
-static bool __read_mostly rcu_nocb_poll;    /* Offload kthread are to poll. */
-static char __initdata nocb_buf[NR_CPUS * 5];
-#endif /* #ifdef CONFIG_RCU_NOCB_CPU */
-
-/*
- * Check the RCU kernel configuration parameters and print informative
- * messages about anything out of the ordinary.  If you like #ifdef, you
- * will love this function.
- */
-static void __init rcu_bootup_announce_oddness(void)
-{
-#ifdef CONFIG_RCU_TRACE
-	pr_info("\tRCU debugfs-based tracing is enabled.\n");
-#endif
-#if (defined(CONFIG_64BIT) && CONFIG_RCU_FANOUT != 64) || (!defined(CONFIG_64BIT) && CONFIG_RCU_FANOUT != 32)
-	pr_info("\tCONFIG_RCU_FANOUT set to non-default value of %d\n",
-	       CONFIG_RCU_FANOUT);
-#endif
-#ifdef CONFIG_RCU_FANOUT_EXACT
-	pr_info("\tHierarchical RCU autobalancing is disabled.\n");
-#endif
-#ifdef CONFIG_RCU_FAST_NO_HZ
-	pr_info("\tRCU dyntick-idle grace-period acceleration is enabled.\n");
-#endif
-#ifdef CONFIG_PROVE_RCU
-	pr_info("\tRCU lockdep checking is enabled.\n");
-#endif
-#ifdef CONFIG_RCU_TORTURE_TEST_RUNNABLE
-	pr_info("\tRCU torture testing starts during boot.\n");
-#endif
-#if defined(CONFIG_TREE_PREEMPT_RCU) && !defined(CONFIG_RCU_CPU_STALL_VERBOSE)
-	pr_info("\tDump stacks of tasks blocking RCU-preempt GP.\n");
-#endif
-#if defined(CONFIG_RCU_CPU_STALL_INFO)
-	pr_info("\tAdditional per-CPU info printed with stalls.\n");
-#endif
-#if NUM_RCU_LVL_4 != 0
-	pr_info("\tFour-level hierarchy is enabled.\n");
-#endif
-	if (rcu_fanout_leaf != CONFIG_RCU_FANOUT_LEAF)
-		pr_info("\tBoot-time adjustment of leaf fanout to %d.\n", rcu_fanout_leaf);
-	if (nr_cpu_ids != NR_CPUS)
-		pr_info("\tRCU restricting CPUs from NR_CPUS=%d to nr_cpu_ids=%d.\n", NR_CPUS, nr_cpu_ids);
-#ifdef CONFIG_RCU_NOCB_CPU
-#ifndef CONFIG_RCU_NOCB_CPU_NONE
-	if (!have_rcu_nocb_mask) {
-		zalloc_cpumask_var(&rcu_nocb_mask, GFP_KERNEL);
-		have_rcu_nocb_mask = true;
-	}
-#ifdef CONFIG_RCU_NOCB_CPU_ZERO
-	pr_info("\tOffload RCU callbacks from CPU 0\n");
-	cpumask_set_cpu(0, rcu_nocb_mask);
-#endif /* #ifdef CONFIG_RCU_NOCB_CPU_ZERO */
-#ifdef CONFIG_RCU_NOCB_CPU_ALL
-	pr_info("\tOffload RCU callbacks from all CPUs\n");
-	cpumask_copy(rcu_nocb_mask, cpu_possible_mask);
-#endif /* #ifdef CONFIG_RCU_NOCB_CPU_ALL */
-#endif /* #ifndef CONFIG_RCU_NOCB_CPU_NONE */
-	if (have_rcu_nocb_mask) {
-		if (!cpumask_subset(rcu_nocb_mask, cpu_possible_mask)) {
-			pr_info("\tNote: kernel parameter 'rcu_nocbs=' contains nonexistent CPUs.\n");
-			cpumask_and(rcu_nocb_mask, cpu_possible_mask,
-				    rcu_nocb_mask);
-		}
-		cpulist_scnprintf(nocb_buf, sizeof(nocb_buf), rcu_nocb_mask);
-		pr_info("\tOffload RCU callbacks from CPUs: %s.\n", nocb_buf);
-		if (rcu_nocb_poll)
-			pr_info("\tPoll for callbacks from no-CBs CPUs.\n");
-	}
-#endif /* #ifdef CONFIG_RCU_NOCB_CPU */
-}
-
-#ifdef CONFIG_TREE_PREEMPT_RCU
-
-RCU_STATE_INITIALIZER(rcu_preempt, 'p', call_rcu);
-static struct rcu_state *rcu_state = &rcu_preempt_state;
-
-static int rcu_preempted_readers_exp(struct rcu_node *rnp);
-
-/*
- * Tell them what RCU they are running.
- */
-static void __init rcu_bootup_announce(void)
-{
-	pr_info("Preemptible hierarchical RCU implementation.\n");
-	rcu_bootup_announce_oddness();
-}
-
-/*
- * Return the number of RCU-preempt batches processed thus far
- * for debug and statistics.
- */
-long rcu_batches_completed_preempt(void)
-{
-	return rcu_preempt_state.completed;
-}
-EXPORT_SYMBOL_GPL(rcu_batches_completed_preempt);
-
-/*
- * Return the number of RCU batches processed thus far for debug & stats.
- */
-long rcu_batches_completed(void)
-{
-	return rcu_batches_completed_preempt();
-}
-EXPORT_SYMBOL_GPL(rcu_batches_completed);
-
-/*
- * Force a quiescent state for preemptible RCU.
- */
-void rcu_force_quiescent_state(void)
-{
-	force_quiescent_state(&rcu_preempt_state);
-}
-EXPORT_SYMBOL_GPL(rcu_force_quiescent_state);
-
-/*
- * Record a preemptible-RCU quiescent state for the specified CPU.  Note
- * that this just means that the task currently running on the CPU is
- * not in a quiescent state.  There might be any number of tasks blocked
- * while in an RCU read-side critical section.
- *
- * Unlike the other rcu_*_qs() functions, callers to this function
- * must disable irqs in order to protect the assignment to
- * ->rcu_read_unlock_special.
- */
-static void rcu_preempt_qs(int cpu)
-{
-	struct rcu_data *rdp = &per_cpu(rcu_preempt_data, cpu);
-
-	if (rdp->passed_quiesce == 0)
-		trace_rcu_grace_period(TPS("rcu_preempt"), rdp->gpnum, TPS("cpuqs"));
-	rdp->passed_quiesce = 1;
-	current->rcu_read_unlock_special &= ~RCU_READ_UNLOCK_NEED_QS;
-}
-
-/*
- * We have entered the scheduler, and the current task might soon be
- * context-switched away from.  If this task is in an RCU read-side
- * critical section, we will no longer be able to rely on the CPU to
- * record that fact, so we enqueue the task on the blkd_tasks list.
- * The task will dequeue itself when it exits the outermost enclosing
- * RCU read-side critical section.  Therefore, the current grace period
- * cannot be permitted to complete until the blkd_tasks list entries
- * predating the current grace period drain, in other words, until
- * rnp->gp_tasks becomes NULL.
- *
- * Caller must disable preemption.
- */
-static void rcu_preempt_note_context_switch(int cpu)
-{
-	struct task_struct *t = current;
-	unsigned long flags;
-	struct rcu_data *rdp;
-	struct rcu_node *rnp;
-
-	if (t->rcu_read_lock_nesting > 0 &&
-	    (t->rcu_read_unlock_special & RCU_READ_UNLOCK_BLOCKED) == 0) {
-
-		/* Possibly blocking in an RCU read-side critical section. */
-		rdp = per_cpu_ptr(rcu_preempt_state.rda, cpu);
-		rnp = rdp->mynode;
-		raw_spin_lock_irqsave(&rnp->lock, flags);
-		t->rcu_read_unlock_special |= RCU_READ_UNLOCK_BLOCKED;
-		t->rcu_blocked_node = rnp;
-
-		/*
-		 * If this CPU has already checked in, then this task
-		 * will hold up the next grace period rather than the
-		 * current grace period.  Queue the task accordingly.
-		 * If the task is queued for the current grace period
-		 * (i.e., this CPU has not yet passed through a quiescent
-		 * state for the current grace period), then as long
-		 * as that task remains queued, the current grace period
-		 * cannot end.  Note that there is some uncertainty as
-		 * to exactly when the current grace period started.
-		 * We take a conservative approach, which can result
-		 * in unnecessarily waiting on tasks that started very
-		 * slightly after the current grace period began.  C'est
-		 * la vie!!!
-		 *
-		 * But first, note that the current CPU must still be
-		 * on line!
-		 */
-		WARN_ON_ONCE((rdp->grpmask & rnp->qsmaskinit) == 0);
-		WARN_ON_ONCE(!list_empty(&t->rcu_node_entry));
-		if ((rnp->qsmask & rdp->grpmask) && rnp->gp_tasks != NULL) {
-			list_add(&t->rcu_node_entry, rnp->gp_tasks->prev);
-			rnp->gp_tasks = &t->rcu_node_entry;
-#ifdef CONFIG_RCU_BOOST
-			if (rnp->boost_tasks != NULL)
-				rnp->boost_tasks = rnp->gp_tasks;
-#endif /* #ifdef CONFIG_RCU_BOOST */
-		} else {
-			list_add(&t->rcu_node_entry, &rnp->blkd_tasks);
-			if (rnp->qsmask & rdp->grpmask)
-				rnp->gp_tasks = &t->rcu_node_entry;
-		}
-		trace_rcu_preempt_task(rdp->rsp->name,
-				       t->pid,
-				       (rnp->qsmask & rdp->grpmask)
-				       ? rnp->gpnum
-				       : rnp->gpnum + 1);
-		raw_spin_unlock_irqrestore(&rnp->lock, flags);
-	} else if (t->rcu_read_lock_nesting < 0 &&
-		   t->rcu_read_unlock_special) {
-
-		/*
-		 * Complete exit from RCU read-side critical section on
-		 * behalf of preempted instance of __rcu_read_unlock().
-		 */
-		rcu_read_unlock_special(t);
-	}
-
-	/*
-	 * Either we were not in an RCU read-side critical section to
-	 * begin with, or we have now recorded that critical section
-	 * globally.  Either way, we can now note a quiescent state
-	 * for this CPU.  Again, if we were in an RCU read-side critical
-	 * section, and if that critical section was blocking the current
-	 * grace period, then the fact that the task has been enqueued
-	 * means that we continue to block the current grace period.
-	 */
-	local_irq_save(flags);
-	rcu_preempt_qs(cpu);
-	local_irq_restore(flags);
-}
-
-/*
- * Check for preempted RCU readers blocking the current grace period
- * for the specified rcu_node structure.  If the caller needs a reliable
- * answer, it must hold the rcu_node's ->lock.
- */
-static int rcu_preempt_blocked_readers_cgp(struct rcu_node *rnp)
-{
-	return rnp->gp_tasks != NULL;
-}
-
-/*
- * Record a quiescent state for all tasks that were previously queued
- * on the specified rcu_node structure and that were blocking the current
- * RCU grace period.  The caller must hold the specified rnp->lock with
- * irqs disabled, and this lock is released upon return, but irqs remain
- * disabled.
- */
-static void rcu_report_unblock_qs_rnp(struct rcu_node *rnp, unsigned long flags)
-	__releases(rnp->lock)
-{
-	unsigned long mask;
-	struct rcu_node *rnp_p;
-
-	if (rnp->qsmask != 0 || rcu_preempt_blocked_readers_cgp(rnp)) {
-		raw_spin_unlock_irqrestore(&rnp->lock, flags);
-		return;  /* Still need more quiescent states! */
-	}
-
-	rnp_p = rnp->parent;
-	if (rnp_p == NULL) {
-		/*
-		 * Either there is only one rcu_node in the tree,
-		 * or tasks were kicked up to root rcu_node due to
-		 * CPUs going offline.
-		 */
-		rcu_report_qs_rsp(&rcu_preempt_state, flags);
-		return;
-	}
-
-	/* Report up the rest of the hierarchy. */
-	mask = rnp->grpmask;
-	raw_spin_unlock(&rnp->lock);	/* irqs remain disabled. */
-	raw_spin_lock(&rnp_p->lock);	/* irqs already disabled. */
-	rcu_report_qs_rnp(mask, &rcu_preempt_state, rnp_p, flags);
-}
-
-/*
- * Advance a ->blkd_tasks-list pointer to the next entry, instead
- * returning NULL if at the end of the list.
- */
-static struct list_head *rcu_next_node_entry(struct task_struct *t,
-					     struct rcu_node *rnp)
-{
-	struct list_head *np;
-
-	np = t->rcu_node_entry.next;
-	if (np == &rnp->blkd_tasks)
-		np = NULL;
-	return np;
-}
-
-/*
- * Handle special cases during rcu_read_unlock(), such as needing to
- * notify RCU core processing or task having blocked during the RCU
- * read-side critical section.
- */
-void rcu_read_unlock_special(struct task_struct *t)
-{
-	int empty;
-	int empty_exp;
-	int empty_exp_now;
-	unsigned long flags;
-	struct list_head *np;
-#ifdef CONFIG_RCU_BOOST
-	struct rt_mutex *rbmp = NULL;
-#endif /* #ifdef CONFIG_RCU_BOOST */
-	struct rcu_node *rnp;
-	int special;
-
-	/* NMI handlers cannot block and cannot safely manipulate state. */
-	if (in_nmi())
-		return;
-
-	local_irq_save(flags);
-
-	/*
-	 * If RCU core is waiting for this CPU to exit critical section,
-	 * let it know that we have done so.
-	 */
-	special = t->rcu_read_unlock_special;
-	if (special & RCU_READ_UNLOCK_NEED_QS) {
-		rcu_preempt_qs(smp_processor_id());
-	}
-
-	/* Hardware IRQ handlers cannot block. */
-	if (in_irq() || in_serving_softirq()) {
-		local_irq_restore(flags);
-		return;
-	}
-
-	/* Clean up if blocked during RCU read-side critical section. */
-	if (special & RCU_READ_UNLOCK_BLOCKED) {
-		t->rcu_read_unlock_special &= ~RCU_READ_UNLOCK_BLOCKED;
-
-		/*
-		 * Remove this task from the list it blocked on.  The
-		 * task can migrate while we acquire the lock, but at
-		 * most one time.  So at most two passes through loop.
-		 */
-		for (;;) {
-			rnp = t->rcu_blocked_node;
-			raw_spin_lock(&rnp->lock);  /* irqs already disabled. */
-			if (rnp == t->rcu_blocked_node)
-				break;
-			raw_spin_unlock(&rnp->lock); /* irqs remain disabled. */
-		}
-		empty = !rcu_preempt_blocked_readers_cgp(rnp);
-		empty_exp = !rcu_preempted_readers_exp(rnp);
-		smp_mb(); /* ensure expedited fastpath sees end of RCU c-s. */
-		np = rcu_next_node_entry(t, rnp);
-		list_del_init(&t->rcu_node_entry);
-		t->rcu_blocked_node = NULL;
-		trace_rcu_unlock_preempted_task(TPS("rcu_preempt"),
-						rnp->gpnum, t->pid);
-		if (&t->rcu_node_entry == rnp->gp_tasks)
-			rnp->gp_tasks = np;
-		if (&t->rcu_node_entry == rnp->exp_tasks)
-			rnp->exp_tasks = np;
-#ifdef CONFIG_RCU_BOOST
-		if (&t->rcu_node_entry == rnp->boost_tasks)
-			rnp->boost_tasks = np;
-		/* Snapshot/clear ->rcu_boost_mutex with rcu_node lock held. */
-		if (t->rcu_boost_mutex) {
-			rbmp = t->rcu_boost_mutex;
-			t->rcu_boost_mutex = NULL;
-		}
-#endif /* #ifdef CONFIG_RCU_BOOST */
-
-		/*
-		 * If this was the last task on the current list, and if
-		 * we aren't waiting on any CPUs, report the quiescent state.
-		 * Note that rcu_report_unblock_qs_rnp() releases rnp->lock,
-		 * so we must take a snapshot of the expedited state.
-		 */
-		empty_exp_now = !rcu_preempted_readers_exp(rnp);
-		if (!empty && !rcu_preempt_blocked_readers_cgp(rnp)) {
-			trace_rcu_quiescent_state_report(TPS("preempt_rcu"),
-							 rnp->gpnum,
-							 0, rnp->qsmask,
-							 rnp->level,
-							 rnp->grplo,
-							 rnp->grphi,
-							 !!rnp->gp_tasks);
-			rcu_report_unblock_qs_rnp(rnp, flags);
-		} else {
-			raw_spin_unlock_irqrestore(&rnp->lock, flags);
-		}
-
-#ifdef CONFIG_RCU_BOOST
-		/* Unboost if we were boosted. */
-		if (rbmp)
-			rt_mutex_unlock(rbmp);
-#endif /* #ifdef CONFIG_RCU_BOOST */
-
-		/*
-		 * If this was the last task on the expedited lists,
-		 * then we need to report up the rcu_node hierarchy.
-		 */
-		if (!empty_exp && empty_exp_now)
-			rcu_report_exp_rnp(&rcu_preempt_state, rnp, true);
-	} else {
-		local_irq_restore(flags);
-	}
-}
-
-#ifdef CONFIG_RCU_CPU_STALL_VERBOSE
-
-/*
- * Dump detailed information for all tasks blocking the current RCU
- * grace period on the specified rcu_node structure.
- */
-static void rcu_print_detail_task_stall_rnp(struct rcu_node *rnp)
-{
-	unsigned long flags;
-	struct task_struct *t;
-
-	raw_spin_lock_irqsave(&rnp->lock, flags);
-	if (!rcu_preempt_blocked_readers_cgp(rnp)) {
-		raw_spin_unlock_irqrestore(&rnp->lock, flags);
-		return;
-	}
-	t = list_entry(rnp->gp_tasks,
-		       struct task_struct, rcu_node_entry);
-	list_for_each_entry_continue(t, &rnp->blkd_tasks, rcu_node_entry)
-		sched_show_task(t);
-	raw_spin_unlock_irqrestore(&rnp->lock, flags);
-}
-
-/*
- * Dump detailed information for all tasks blocking the current RCU
- * grace period.
- */
-static void rcu_print_detail_task_stall(struct rcu_state *rsp)
-{
-	struct rcu_node *rnp = rcu_get_root(rsp);
-
-	rcu_print_detail_task_stall_rnp(rnp);
-	rcu_for_each_leaf_node(rsp, rnp)
-		rcu_print_detail_task_stall_rnp(rnp);
-}
-
-#else /* #ifdef CONFIG_RCU_CPU_STALL_VERBOSE */
-
-static void rcu_print_detail_task_stall(struct rcu_state *rsp)
-{
-}
-
-#endif /* #else #ifdef CONFIG_RCU_CPU_STALL_VERBOSE */
-
-#ifdef CONFIG_RCU_CPU_STALL_INFO
-
-static void rcu_print_task_stall_begin(struct rcu_node *rnp)
-{
-	pr_err("\tTasks blocked on level-%d rcu_node (CPUs %d-%d):",
-	       rnp->level, rnp->grplo, rnp->grphi);
-}
-
-static void rcu_print_task_stall_end(void)
-{
-	pr_cont("\n");
-}
-
-#else /* #ifdef CONFIG_RCU_CPU_STALL_INFO */
-
-static void rcu_print_task_stall_begin(struct rcu_node *rnp)
-{
-}
-
-static void rcu_print_task_stall_end(void)
-{
-}
-
-#endif /* #else #ifdef CONFIG_RCU_CPU_STALL_INFO */
-
-/*
- * Scan the current list of tasks blocked within RCU read-side critical
- * sections, printing out the tid of each.
- */
-static int rcu_print_task_stall(struct rcu_node *rnp)
-{
-	struct task_struct *t;
-	int ndetected = 0;
-
-	if (!rcu_preempt_blocked_readers_cgp(rnp))
-		return 0;
-	rcu_print_task_stall_begin(rnp);
-	t = list_entry(rnp->gp_tasks,
-		       struct task_struct, rcu_node_entry);
-	list_for_each_entry_continue(t, &rnp->blkd_tasks, rcu_node_entry) {
-		pr_cont(" P%d", t->pid);
-		ndetected++;
-	}
-	rcu_print_task_stall_end();
-	return ndetected;
-}
-
-/*
- * Check that the list of blocked tasks for the newly completed grace
- * period is in fact empty.  It is a serious bug to complete a grace
- * period that still has RCU readers blocked!  This function must be
- * invoked -before- updating this rnp's ->gpnum, and the rnp's ->lock
- * must be held by the caller.
- *
- * Also, if there are blocked tasks on the list, they automatically
- * block the newly created grace period, so set up ->gp_tasks accordingly.
- */
-static void rcu_preempt_check_blocked_tasks(struct rcu_node *rnp)
-{
-	WARN_ON_ONCE(rcu_preempt_blocked_readers_cgp(rnp));
-	if (!list_empty(&rnp->blkd_tasks))
-		rnp->gp_tasks = rnp->blkd_tasks.next;
-	WARN_ON_ONCE(rnp->qsmask);
-}
-
-#ifdef CONFIG_HOTPLUG_CPU
-
-/*
- * Handle tasklist migration for case in which all CPUs covered by the
- * specified rcu_node have gone offline.  Move them up to the root
- * rcu_node.  The reason for not just moving them to the immediate
- * parent is to remove the need for rcu_read_unlock_special() to
- * make more than two attempts to acquire the target rcu_node's lock.
- * Returns true if there were tasks blocking the current RCU grace
- * period.
- *
- * Returns 1 if there was previously a task blocking the current grace
- * period on the specified rcu_node structure.
- *
- * The caller must hold rnp->lock with irqs disabled.
- */
-static int rcu_preempt_offline_tasks(struct rcu_state *rsp,
-				     struct rcu_node *rnp,
-				     struct rcu_data *rdp)
-{
-	struct list_head *lp;
-	struct list_head *lp_root;
-	int retval = 0;
-	struct rcu_node *rnp_root = rcu_get_root(rsp);
-	struct task_struct *t;
-
-	if (rnp == rnp_root) {
-		WARN_ONCE(1, "Last CPU thought to be offlined?");
-		return 0;  /* Shouldn't happen: at least one CPU online. */
-	}
-
-	/* If we are on an internal node, complain bitterly. */
-	WARN_ON_ONCE(rnp != rdp->mynode);
-
-	/*
-	 * Move tasks up to root rcu_node.  Don't try to get fancy for
-	 * this corner-case operation -- just put this node's tasks
-	 * at the head of the root node's list, and update the root node's
-	 * ->gp_tasks and ->exp_tasks pointers to those of this node's,
-	 * if non-NULL.  This might result in waiting for more tasks than
-	 * absolutely necessary, but this is a good performance/complexity
-	 * tradeoff.
-	 */
-	if (rcu_preempt_blocked_readers_cgp(rnp) && rnp->qsmask == 0)
-		retval |= RCU_OFL_TASKS_NORM_GP;
-	if (rcu_preempted_readers_exp(rnp))
-		retval |= RCU_OFL_TASKS_EXP_GP;
-	lp = &rnp->blkd_tasks;
-	lp_root = &rnp_root->blkd_tasks;
-	while (!list_empty(lp)) {
-		t = list_entry(lp->next, typeof(*t), rcu_node_entry);
-		raw_spin_lock(&rnp_root->lock); /* irqs already disabled */
-		list_del(&t->rcu_node_entry);
-		t->rcu_blocked_node = rnp_root;
-		list_add(&t->rcu_node_entry, lp_root);
-		if (&t->rcu_node_entry == rnp->gp_tasks)
-			rnp_root->gp_tasks = rnp->gp_tasks;
-		if (&t->rcu_node_entry == rnp->exp_tasks)
-			rnp_root->exp_tasks = rnp->exp_tasks;
-#ifdef CONFIG_RCU_BOOST
-		if (&t->rcu_node_entry == rnp->boost_tasks)
-			rnp_root->boost_tasks = rnp->boost_tasks;
-#endif /* #ifdef CONFIG_RCU_BOOST */
-		raw_spin_unlock(&rnp_root->lock); /* irqs still disabled */
-	}
-
-	rnp->gp_tasks = NULL;
-	rnp->exp_tasks = NULL;
-#ifdef CONFIG_RCU_BOOST
-	rnp->boost_tasks = NULL;
-	/*
-	 * In case root is being boosted and leaf was not.  Make sure
-	 * that we boost the tasks blocking the current grace period
-	 * in this case.
-	 */
-	raw_spin_lock(&rnp_root->lock); /* irqs already disabled */
-	if (rnp_root->boost_tasks != NULL &&
-	    rnp_root->boost_tasks != rnp_root->gp_tasks &&
-	    rnp_root->boost_tasks != rnp_root->exp_tasks)
-		rnp_root->boost_tasks = rnp_root->gp_tasks;
-	raw_spin_unlock(&rnp_root->lock); /* irqs still disabled */
-#endif /* #ifdef CONFIG_RCU_BOOST */
-
-	return retval;
-}
-
-#endif /* #ifdef CONFIG_HOTPLUG_CPU */
-
-/*
- * Check for a quiescent state from the current CPU.  When a task blocks,
- * the task is recorded in the corresponding CPU's rcu_node structure,
- * which is checked elsewhere.
- *
- * Caller must disable hard irqs.
- */
-static void rcu_preempt_check_callbacks(int cpu)
-{
-	struct task_struct *t = current;
-
-	if (t->rcu_read_lock_nesting == 0) {
-		rcu_preempt_qs(cpu);
-		return;
-	}
-	if (t->rcu_read_lock_nesting > 0 &&
-	    per_cpu(rcu_preempt_data, cpu).qs_pending)
-		t->rcu_read_unlock_special |= RCU_READ_UNLOCK_NEED_QS;
-}
-
-#ifdef CONFIG_RCU_BOOST
-
-static void rcu_preempt_do_callbacks(void)
-{
-	rcu_do_batch(&rcu_preempt_state, this_cpu_ptr(&rcu_preempt_data));
-}
-
-#endif /* #ifdef CONFIG_RCU_BOOST */
-
-/*
- * Queue a preemptible-RCU callback for invocation after a grace period.
- */
-void call_rcu(struct rcu_head *head, void (*func)(struct rcu_head *rcu))
-{
-	__call_rcu(head, func, &rcu_preempt_state, -1, 0);
-}
-EXPORT_SYMBOL_GPL(call_rcu);
-
-/*
- * Queue an RCU callback for lazy invocation after a grace period.
- * This will likely be later named something like "call_rcu_lazy()",
- * but this change will require some way of tagging the lazy RCU
- * callbacks in the list of pending callbacks.  Until then, this
- * function may only be called from __kfree_rcu().
- */
-void kfree_call_rcu(struct rcu_head *head,
-		    void (*func)(struct rcu_head *rcu))
-{
-	__call_rcu(head, func, &rcu_preempt_state, -1, 1);
-}
-EXPORT_SYMBOL_GPL(kfree_call_rcu);
-
-/**
- * synchronize_rcu - wait until a grace period has elapsed.
- *
- * Control will return to the caller some time after a full grace
- * period has elapsed, in other words after all currently executing RCU
- * read-side critical sections have completed.  Note, however, that
- * upon return from synchronize_rcu(), the caller might well be executing
- * concurrently with new RCU read-side critical sections that began while
- * synchronize_rcu() was waiting.  RCU read-side critical sections are
- * delimited by rcu_read_lock() and rcu_read_unlock(), and may be nested.
- *
- * See the description of synchronize_sched() for more detailed information
- * on memory ordering guarantees.
- */
-void synchronize_rcu(void)
-{
-	rcu_lockdep_assert(!lock_is_held(&rcu_bh_lock_map) &&
-			   !lock_is_held(&rcu_lock_map) &&
-			   !lock_is_held(&rcu_sched_lock_map),
-			   "Illegal synchronize_rcu() in RCU read-side critical section");
-	if (!rcu_scheduler_active)
-		return;
-	if (rcu_expedited)
-		synchronize_rcu_expedited();
-	else
-		wait_rcu_gp(call_rcu);
-}
-EXPORT_SYMBOL_GPL(synchronize_rcu);
-
-static DECLARE_WAIT_QUEUE_HEAD(sync_rcu_preempt_exp_wq);
-static unsigned long sync_rcu_preempt_exp_count;
-static DEFINE_MUTEX(sync_rcu_preempt_exp_mutex);
-
-/*
- * Return non-zero if there are any tasks in RCU read-side critical
- * sections blocking the current preemptible-RCU expedited grace period.
- * If there is no preemptible-RCU expedited grace period currently in
- * progress, returns zero unconditionally.
- */
-static int rcu_preempted_readers_exp(struct rcu_node *rnp)
-{
-	return rnp->exp_tasks != NULL;
-}
-
-/*
- * return non-zero if there is no RCU expedited grace period in progress
- * for the specified rcu_node structure, in other words, if all CPUs and
- * tasks covered by the specified rcu_node structure have done their bit
- * for the current expedited grace period.  Works only for preemptible
- * RCU -- other RCU implementation use other means.
- *
- * Caller must hold sync_rcu_preempt_exp_mutex.
- */
-static int sync_rcu_preempt_exp_done(struct rcu_node *rnp)
-{
-	return !rcu_preempted_readers_exp(rnp) &&
-	       ACCESS_ONCE(rnp->expmask) == 0;
-}
-
-/*
- * Report the exit from RCU read-side critical section for the last task
- * that queued itself during or before the current expedited preemptible-RCU
- * grace period.  This event is reported either to the rcu_node structure on
- * which the task was queued or to one of that rcu_node structure's ancestors,
- * recursively up the tree.  (Calm down, calm down, we do the recursion
- * iteratively!)
- *
- * Most callers will set the "wake" flag, but the task initiating the
- * expedited grace period need not wake itself.
- *
- * Caller must hold sync_rcu_preempt_exp_mutex.
- */
-static void rcu_report_exp_rnp(struct rcu_state *rsp, struct rcu_node *rnp,
-			       bool wake)
-{
-	unsigned long flags;
-	unsigned long mask;
-
-	raw_spin_lock_irqsave(&rnp->lock, flags);
-	for (;;) {
-		if (!sync_rcu_preempt_exp_done(rnp)) {
-			raw_spin_unlock_irqrestore(&rnp->lock, flags);
-			break;
-		}
-		if (rnp->parent == NULL) {
-			raw_spin_unlock_irqrestore(&rnp->lock, flags);
-			if (wake)
-				wake_up(&sync_rcu_preempt_exp_wq);
-			break;
-		}
-		mask = rnp->grpmask;
-		raw_spin_unlock(&rnp->lock); /* irqs remain disabled */
-		rnp = rnp->parent;
-		raw_spin_lock(&rnp->lock); /* irqs already disabled */
-		rnp->expmask &= ~mask;
-	}
-}
-
-/*
- * Snapshot the tasks blocking the newly started preemptible-RCU expedited
- * grace period for the specified rcu_node structure.  If there are no such
- * tasks, report it up the rcu_node hierarchy.
- *
- * Caller must hold sync_rcu_preempt_exp_mutex and must exclude
- * CPU hotplug operations.
- */
-static void
-sync_rcu_preempt_exp_init(struct rcu_state *rsp, struct rcu_node *rnp)
-{
-	unsigned long flags;
-	int must_wait = 0;
-
-	raw_spin_lock_irqsave(&rnp->lock, flags);
-	if (list_empty(&rnp->blkd_tasks)) {
-		raw_spin_unlock_irqrestore(&rnp->lock, flags);
-	} else {
-		rnp->exp_tasks = rnp->blkd_tasks.next;
-		rcu_initiate_boost(rnp, flags);  /* releases rnp->lock */
-		must_wait = 1;
-	}
-	if (!must_wait)
-		rcu_report_exp_rnp(rsp, rnp, false); /* Don't wake self. */
-}
-
-/**
- * synchronize_rcu_expedited - Brute-force RCU grace period
- *
- * Wait for an RCU-preempt grace period, but expedite it.  The basic
- * idea is to invoke synchronize_sched_expedited() to push all the tasks to
- * the ->blkd_tasks lists and wait for this list to drain.  This consumes
- * significant time on all CPUs and is unfriendly to real-time workloads,
- * so is thus not recommended for any sort of common-case code.
- * In fact, if you are using synchronize_rcu_expedited() in a loop,
- * please restructure your code to batch your updates, and then Use a
- * single synchronize_rcu() instead.
- *
- * Note that it is illegal to call this function while holding any lock
- * that is acquired by a CPU-hotplug notifier.  And yes, it is also illegal
- * to call this function from a CPU-hotplug notifier.  Failing to observe
- * these restriction will result in deadlock.
- */
-void synchronize_rcu_expedited(void)
-{
-	unsigned long flags;
-	struct rcu_node *rnp;
-	struct rcu_state *rsp = &rcu_preempt_state;
-	unsigned long snap;
-	int trycount = 0;
-
-	smp_mb(); /* Caller's modifications seen first by other CPUs. */
-	snap = ACCESS_ONCE(sync_rcu_preempt_exp_count) + 1;
-	smp_mb(); /* Above access cannot bleed into critical section. */
-
-	/*
-	 * Block CPU-hotplug operations.  This means that any CPU-hotplug
-	 * operation that finds an rcu_node structure with tasks in the
-	 * process of being boosted will know that all tasks blocking
-	 * this expedited grace period will already be in the process of
-	 * being boosted.  This simplifies the process of moving tasks
-	 * from leaf to root rcu_node structures.
-	 */
-	get_online_cpus();
-
-	/*
-	 * Acquire lock, falling back to synchronize_rcu() if too many
-	 * lock-acquisition failures.  Of course, if someone does the
-	 * expedited grace period for us, just leave.
-	 */
-	while (!mutex_trylock(&sync_rcu_preempt_exp_mutex)) {
-		if (ULONG_CMP_LT(snap,
-		    ACCESS_ONCE(sync_rcu_preempt_exp_count))) {
-			put_online_cpus();
-			goto mb_ret; /* Others did our work for us. */
-		}
-		if (trycount++ < 10) {
-			udelay(trycount * num_online_cpus());
-		} else {
-			put_online_cpus();
-			wait_rcu_gp(call_rcu);
-			return;
-		}
-	}
-	if (ULONG_CMP_LT(snap, ACCESS_ONCE(sync_rcu_preempt_exp_count))) {
-		put_online_cpus();
-		goto unlock_mb_ret; /* Others did our work for us. */
-	}
-
-	/* force all RCU readers onto ->blkd_tasks lists. */
-	synchronize_sched_expedited();
-
-	/* Initialize ->expmask for all non-leaf rcu_node structures. */
-	rcu_for_each_nonleaf_node_breadth_first(rsp, rnp) {
-		raw_spin_lock_irqsave(&rnp->lock, flags);
-		rnp->expmask = rnp->qsmaskinit;
-		raw_spin_unlock_irqrestore(&rnp->lock, flags);
-	}
-
-	/* Snapshot current state of ->blkd_tasks lists. */
-	rcu_for_each_leaf_node(rsp, rnp)
-		sync_rcu_preempt_exp_init(rsp, rnp);
-	if (NUM_RCU_NODES > 1)
-		sync_rcu_preempt_exp_init(rsp, rcu_get_root(rsp));
-
-	put_online_cpus();
-
-	/* Wait for snapshotted ->blkd_tasks lists to drain. */
-	rnp = rcu_get_root(rsp);
-	wait_event(sync_rcu_preempt_exp_wq,
-		   sync_rcu_preempt_exp_done(rnp));
-
-	/* Clean up and exit. */
-	smp_mb(); /* ensure expedited GP seen before counter increment. */
-	ACCESS_ONCE(sync_rcu_preempt_exp_count)++;
-unlock_mb_ret:
-	mutex_unlock(&sync_rcu_preempt_exp_mutex);
-mb_ret:
-	smp_mb(); /* ensure subsequent action seen after grace period. */
-}
-EXPORT_SYMBOL_GPL(synchronize_rcu_expedited);
-
-/**
- * rcu_barrier - Wait until all in-flight call_rcu() callbacks complete.
- *
- * Note that this primitive does not necessarily wait for an RCU grace period
- * to complete.  For example, if there are no RCU callbacks queued anywhere
- * in the system, then rcu_barrier() is within its rights to return
- * immediately, without waiting for anything, much less an RCU grace period.
- */
-void rcu_barrier(void)
-{
-	_rcu_barrier(&rcu_preempt_state);
-}
-EXPORT_SYMBOL_GPL(rcu_barrier);
-
-/*
- * Initialize preemptible RCU's state structures.
- */
-static void __init __rcu_init_preempt(void)
-{
-	rcu_init_one(&rcu_preempt_state, &rcu_preempt_data);
-}
-
-/*
- * Check for a task exiting while in a preemptible-RCU read-side
- * critical section, clean up if so.  No need to issue warnings,
- * as debug_check_no_locks_held() already does this if lockdep
- * is enabled.
- */
-void exit_rcu(void)
-{
-	struct task_struct *t = current;
-
-	if (likely(list_empty(&current->rcu_node_entry)))
-		return;
-	t->rcu_read_lock_nesting = 1;
-	barrier();
-	t->rcu_read_unlock_special = RCU_READ_UNLOCK_BLOCKED;
-	__rcu_read_unlock();
-}
-
-#else /* #ifdef CONFIG_TREE_PREEMPT_RCU */
-
-static struct rcu_state *rcu_state = &rcu_sched_state;
-
-/*
- * Tell them what RCU they are running.
- */
-static void __init rcu_bootup_announce(void)
-{
-	pr_info("Hierarchical RCU implementation.\n");
-	rcu_bootup_announce_oddness();
-}
-
-/*
- * Return the number of RCU batches processed thus far for debug & stats.
- */
-long rcu_batches_completed(void)
-{
-	return rcu_batches_completed_sched();
-}
-EXPORT_SYMBOL_GPL(rcu_batches_completed);
-
-/*
- * Force a quiescent state for RCU, which, because there is no preemptible
- * RCU, becomes the same as rcu-sched.
- */
-void rcu_force_quiescent_state(void)
-{
-	rcu_sched_force_quiescent_state();
-}
-EXPORT_SYMBOL_GPL(rcu_force_quiescent_state);
-
-/*
- * Because preemptible RCU does not exist, we never have to check for
- * CPUs being in quiescent states.
- */
-static void rcu_preempt_note_context_switch(int cpu)
-{
-}
-
-/*
- * Because preemptible RCU does not exist, there are never any preempted
- * RCU readers.
- */
-static int rcu_preempt_blocked_readers_cgp(struct rcu_node *rnp)
-{
-	return 0;
-}
-
-#ifdef CONFIG_HOTPLUG_CPU
-
-/* Because preemptible RCU does not exist, no quieting of tasks. */
-static void rcu_report_unblock_qs_rnp(struct rcu_node *rnp, unsigned long flags)
-{
-	raw_spin_unlock_irqrestore(&rnp->lock, flags);
-}
-
-#endif /* #ifdef CONFIG_HOTPLUG_CPU */
-
-/*
- * Because preemptible RCU does not exist, we never have to check for
- * tasks blocked within RCU read-side critical sections.
- */
-static void rcu_print_detail_task_stall(struct rcu_state *rsp)
-{
-}
-
-/*
- * Because preemptible RCU does not exist, we never have to check for
- * tasks blocked within RCU read-side critical sections.
- */
-static int rcu_print_task_stall(struct rcu_node *rnp)
-{
-	return 0;
-}
-
-/*
- * Because there is no preemptible RCU, there can be no readers blocked,
- * so there is no need to check for blocked tasks.  So check only for
- * bogus qsmask values.
- */
-static void rcu_preempt_check_blocked_tasks(struct rcu_node *rnp)
-{
-	WARN_ON_ONCE(rnp->qsmask);
-}
-
-#ifdef CONFIG_HOTPLUG_CPU
-
-/*
- * Because preemptible RCU does not exist, it never needs to migrate
- * tasks that were blocked within RCU read-side critical sections, and
- * such non-existent tasks cannot possibly have been blocking the current
- * grace period.
- */
-static int rcu_preempt_offline_tasks(struct rcu_state *rsp,
-				     struct rcu_node *rnp,
-				     struct rcu_data *rdp)
-{
-	return 0;
-}
-
-#endif /* #ifdef CONFIG_HOTPLUG_CPU */
-
-/*
- * Because preemptible RCU does not exist, it never has any callbacks
- * to check.
- */
-static void rcu_preempt_check_callbacks(int cpu)
-{
-}
-
-/*
- * Queue an RCU callback for lazy invocation after a grace period.
- * This will likely be later named something like "call_rcu_lazy()",
- * but this change will require some way of tagging the lazy RCU
- * callbacks in the list of pending callbacks.  Until then, this
- * function may only be called from __kfree_rcu().
- *
- * Because there is no preemptible RCU, we use RCU-sched instead.
- */
-void kfree_call_rcu(struct rcu_head *head,
-		    void (*func)(struct rcu_head *rcu))
-{
-	__call_rcu(head, func, &rcu_sched_state, -1, 1);
-}
-EXPORT_SYMBOL_GPL(kfree_call_rcu);
-
-/*
- * Wait for an rcu-preempt grace period, but make it happen quickly.
- * But because preemptible RCU does not exist, map to rcu-sched.
- */
-void synchronize_rcu_expedited(void)
-{
-	synchronize_sched_expedited();
-}
-EXPORT_SYMBOL_GPL(synchronize_rcu_expedited);
-
-#ifdef CONFIG_HOTPLUG_CPU
-
-/*
- * Because preemptible RCU does not exist, there is never any need to
- * report on tasks preempted in RCU read-side critical sections during
- * expedited RCU grace periods.
- */
-static void rcu_report_exp_rnp(struct rcu_state *rsp, struct rcu_node *rnp,
-			       bool wake)
-{
-}
-
-#endif /* #ifdef CONFIG_HOTPLUG_CPU */
-
-/*
- * Because preemptible RCU does not exist, rcu_barrier() is just
- * another name for rcu_barrier_sched().
- */
-void rcu_barrier(void)
-{
-	rcu_barrier_sched();
-}
-EXPORT_SYMBOL_GPL(rcu_barrier);
-
-/*
- * Because preemptible RCU does not exist, it need not be initialized.
- */
-static void __init __rcu_init_preempt(void)
-{
-}
-
-/*
- * Because preemptible RCU does not exist, tasks cannot possibly exit
- * while in preemptible RCU read-side critical sections.
- */
-void exit_rcu(void)
-{
-}
-
-#endif /* #else #ifdef CONFIG_TREE_PREEMPT_RCU */
-
-#ifdef CONFIG_RCU_BOOST
-
-#include "rtmutex_common.h"
-
-#ifdef CONFIG_RCU_TRACE
-
-static void rcu_initiate_boost_trace(struct rcu_node *rnp)
-{
-	if (list_empty(&rnp->blkd_tasks))
-		rnp->n_balk_blkd_tasks++;
-	else if (rnp->exp_tasks == NULL && rnp->gp_tasks == NULL)
-		rnp->n_balk_exp_gp_tasks++;
-	else if (rnp->gp_tasks != NULL && rnp->boost_tasks != NULL)
-		rnp->n_balk_boost_tasks++;
-	else if (rnp->gp_tasks != NULL && rnp->qsmask != 0)
-		rnp->n_balk_notblocked++;
-	else if (rnp->gp_tasks != NULL &&
-		 ULONG_CMP_LT(jiffies, rnp->boost_time))
-		rnp->n_balk_notyet++;
-	else
-		rnp->n_balk_nos++;
-}
-
-#else /* #ifdef CONFIG_RCU_TRACE */
-
-static void rcu_initiate_boost_trace(struct rcu_node *rnp)
-{
-}
-
-#endif /* #else #ifdef CONFIG_RCU_TRACE */
-
-static void rcu_wake_cond(struct task_struct *t, int status)
-{
-	/*
-	 * If the thread is yielding, only wake it when this
-	 * is invoked from idle
-	 */
-	if (status != RCU_KTHREAD_YIELDING || is_idle_task(current))
-		wake_up_process(t);
-}
-
-/*
- * Carry out RCU priority boosting on the task indicated by ->exp_tasks
- * or ->boost_tasks, advancing the pointer to the next task in the
- * ->blkd_tasks list.
- *
- * Note that irqs must be enabled: boosting the task can block.
- * Returns 1 if there are more tasks needing to be boosted.
- */
-static int rcu_boost(struct rcu_node *rnp)
-{
-	unsigned long flags;
-	struct rt_mutex mtx;
-	struct task_struct *t;
-	struct list_head *tb;
-
-	if (rnp->exp_tasks == NULL && rnp->boost_tasks == NULL)
-		return 0;  /* Nothing left to boost. */
-
-	raw_spin_lock_irqsave(&rnp->lock, flags);
-
-	/*
-	 * Recheck under the lock: all tasks in need of boosting
-	 * might exit their RCU read-side critical sections on their own.
-	 */
-	if (rnp->exp_tasks == NULL && rnp->boost_tasks == NULL) {
-		raw_spin_unlock_irqrestore(&rnp->lock, flags);
-		return 0;
-	}
-
-	/*
-	 * Preferentially boost tasks blocking expedited grace periods.
-	 * This cannot starve the normal grace periods because a second
-	 * expedited grace period must boost all blocked tasks, including
-	 * those blocking the pre-existing normal grace period.
-	 */
-	if (rnp->exp_tasks != NULL) {
-		tb = rnp->exp_tasks;
-		rnp->n_exp_boosts++;
-	} else {
-		tb = rnp->boost_tasks;
-		rnp->n_normal_boosts++;
-	}
-	rnp->n_tasks_boosted++;
-
-	/*
-	 * We boost task t by manufacturing an rt_mutex that appears to
-	 * be held by task t.  We leave a pointer to that rt_mutex where
-	 * task t can find it, and task t will release the mutex when it
-	 * exits its outermost RCU read-side critical section.  Then
-	 * simply acquiring this artificial rt_mutex will boost task
-	 * t's priority.  (Thanks to tglx for suggesting this approach!)
-	 *
-	 * Note that task t must acquire rnp->lock to remove itself from
-	 * the ->blkd_tasks list, which it will do from exit() if from
-	 * nowhere else.  We therefore are guaranteed that task t will
-	 * stay around at least until we drop rnp->lock.  Note that
-	 * rnp->lock also resolves races between our priority boosting
-	 * and task t's exiting its outermost RCU read-side critical
-	 * section.
-	 */
-	t = container_of(tb, struct task_struct, rcu_node_entry);
-	rt_mutex_init_proxy_locked(&mtx, t);
-	t->rcu_boost_mutex = &mtx;
-	raw_spin_unlock_irqrestore(&rnp->lock, flags);
-	rt_mutex_lock(&mtx);  /* Side effect: boosts task t's priority. */
-	rt_mutex_unlock(&mtx);  /* Keep lockdep happy. */
-
-	return ACCESS_ONCE(rnp->exp_tasks) != NULL ||
-	       ACCESS_ONCE(rnp->boost_tasks) != NULL;
-}
-
-/*
- * Priority-boosting kthread.  One per leaf rcu_node and one for the
- * root rcu_node.
- */
-static int rcu_boost_kthread(void *arg)
-{
-	struct rcu_node *rnp = (struct rcu_node *)arg;
-	int spincnt = 0;
-	int more2boost;
-
-	trace_rcu_utilization(TPS("Start boost kthread@init"));
-	for (;;) {
-		rnp->boost_kthread_status = RCU_KTHREAD_WAITING;
-		trace_rcu_utilization(TPS("End boost kthread@rcu_wait"));
-		rcu_wait(rnp->boost_tasks || rnp->exp_tasks);
-		trace_rcu_utilization(TPS("Start boost kthread@rcu_wait"));
-		rnp->boost_kthread_status = RCU_KTHREAD_RUNNING;
-		more2boost = rcu_boost(rnp);
-		if (more2boost)
-			spincnt++;
-		else
-			spincnt = 0;
-		if (spincnt > 10) {
-			rnp->boost_kthread_status = RCU_KTHREAD_YIELDING;
-			trace_rcu_utilization(TPS("End boost kthread@rcu_yield"));
-			schedule_timeout_interruptible(2);
-			trace_rcu_utilization(TPS("Start boost kthread@rcu_yield"));
-			spincnt = 0;
-		}
-	}
-	/* NOTREACHED */
-	trace_rcu_utilization(TPS("End boost kthread@notreached"));
-	return 0;
-}
-
-/*
- * Check to see if it is time to start boosting RCU readers that are
- * blocking the current grace period, and, if so, tell the per-rcu_node
- * kthread to start boosting them.  If there is an expedited grace
- * period in progress, it is always time to boost.
- *
- * The caller must hold rnp->lock, which this function releases.
- * The ->boost_kthread_task is immortal, so we don't need to worry
- * about it going away.
- */
-static void rcu_initiate_boost(struct rcu_node *rnp, unsigned long flags)
-{
-	struct task_struct *t;
-
-	if (!rcu_preempt_blocked_readers_cgp(rnp) && rnp->exp_tasks == NULL) {
-		rnp->n_balk_exp_gp_tasks++;
-		raw_spin_unlock_irqrestore(&rnp->lock, flags);
-		return;
-	}
-	if (rnp->exp_tasks != NULL ||
-	    (rnp->gp_tasks != NULL &&
-	     rnp->boost_tasks == NULL &&
-	     rnp->qsmask == 0 &&
-	     ULONG_CMP_GE(jiffies, rnp->boost_time))) {
-		if (rnp->exp_tasks == NULL)
-			rnp->boost_tasks = rnp->gp_tasks;
-		raw_spin_unlock_irqrestore(&rnp->lock, flags);
-		t = rnp->boost_kthread_task;
-		if (t)
-			rcu_wake_cond(t, rnp->boost_kthread_status);
-	} else {
-		rcu_initiate_boost_trace(rnp);
-		raw_spin_unlock_irqrestore(&rnp->lock, flags);
-	}
-}
-
-/*
- * Wake up the per-CPU kthread to invoke RCU callbacks.
- */
-static void invoke_rcu_callbacks_kthread(void)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	__this_cpu_write(rcu_cpu_has_work, 1);
-	if (__this_cpu_read(rcu_cpu_kthread_task) != NULL &&
-	    current != __this_cpu_read(rcu_cpu_kthread_task)) {
-		rcu_wake_cond(__this_cpu_read(rcu_cpu_kthread_task),
-			      __this_cpu_read(rcu_cpu_kthread_status));
-	}
-	local_irq_restore(flags);
-}
-
-/*
- * Is the current CPU running the RCU-callbacks kthread?
- * Caller must have preemption disabled.
- */
-static bool rcu_is_callbacks_kthread(void)
-{
-	return __this_cpu_read(rcu_cpu_kthread_task) == current;
-}
-
-#define RCU_BOOST_DELAY_JIFFIES DIV_ROUND_UP(CONFIG_RCU_BOOST_DELAY * HZ, 1000)
-
-/*
- * Do priority-boost accounting for the start of a new grace period.
- */
-static void rcu_preempt_boost_start_gp(struct rcu_node *rnp)
-{
-	rnp->boost_time = jiffies + RCU_BOOST_DELAY_JIFFIES;
-}
-
-/*
- * Create an RCU-boost kthread for the specified node if one does not
- * already exist.  We only create this kthread for preemptible RCU.
- * Returns zero if all is well, a negated errno otherwise.
- */
-static int rcu_spawn_one_boost_kthread(struct rcu_state *rsp,
-						 struct rcu_node *rnp)
-{
-	int rnp_index = rnp - &rsp->node[0];
-	unsigned long flags;
-	struct sched_param sp;
-	struct task_struct *t;
-
-	if (&rcu_preempt_state != rsp)
-		return 0;
-
-	if (!rcu_scheduler_fully_active || rnp->qsmaskinit == 0)
-		return 0;
-
-	rsp->boost = 1;
-	if (rnp->boost_kthread_task != NULL)
-		return 0;
-	t = kthread_create(rcu_boost_kthread, (void *)rnp,
-			   "rcub/%d", rnp_index);
-	if (IS_ERR(t))
-		return PTR_ERR(t);
-	raw_spin_lock_irqsave(&rnp->lock, flags);
-	rnp->boost_kthread_task = t;
-	raw_spin_unlock_irqrestore(&rnp->lock, flags);
-	sp.sched_priority = RCU_BOOST_PRIO;
-	sched_setscheduler_nocheck(t, SCHED_FIFO, &sp);
-	wake_up_process(t); /* get to TASK_INTERRUPTIBLE quickly. */
-	return 0;
-}
-
-static void rcu_kthread_do_work(void)
-{
-	rcu_do_batch(&rcu_sched_state, this_cpu_ptr(&rcu_sched_data));
-	rcu_do_batch(&rcu_bh_state, this_cpu_ptr(&rcu_bh_data));
-	rcu_preempt_do_callbacks();
-}
-
-static void rcu_cpu_kthread_setup(unsigned int cpu)
-{
-	struct sched_param sp;
-
-	sp.sched_priority = RCU_KTHREAD_PRIO;
-	sched_setscheduler_nocheck(current, SCHED_FIFO, &sp);
-}
-
-static void rcu_cpu_kthread_park(unsigned int cpu)
-{
-	per_cpu(rcu_cpu_kthread_status, cpu) = RCU_KTHREAD_OFFCPU;
-}
-
-static int rcu_cpu_kthread_should_run(unsigned int cpu)
-{
-	return __this_cpu_read(rcu_cpu_has_work);
-}
-
-/*
- * Per-CPU kernel thread that invokes RCU callbacks.  This replaces the
- * RCU softirq used in flavors and configurations of RCU that do not
- * support RCU priority boosting.
- */
-static void rcu_cpu_kthread(unsigned int cpu)
-{
-	unsigned int *statusp = this_cpu_ptr(&rcu_cpu_kthread_status);
-	char work, *workp = this_cpu_ptr(&rcu_cpu_has_work);
-	int spincnt;
-
-	for (spincnt = 0; spincnt < 10; spincnt++) {
-		trace_rcu_utilization(TPS("Start CPU kthread@rcu_wait"));
-		local_bh_disable();
-		*statusp = RCU_KTHREAD_RUNNING;
-		this_cpu_inc(rcu_cpu_kthread_loops);
-		local_irq_disable();
-		work = *workp;
-		*workp = 0;
-		local_irq_enable();
-		if (work)
-			rcu_kthread_do_work();
-		local_bh_enable();
-		if (*workp == 0) {
-			trace_rcu_utilization(TPS("End CPU kthread@rcu_wait"));
-			*statusp = RCU_KTHREAD_WAITING;
-			return;
-		}
-	}
-	*statusp = RCU_KTHREAD_YIELDING;
-	trace_rcu_utilization(TPS("Start CPU kthread@rcu_yield"));
-	schedule_timeout_interruptible(2);
-	trace_rcu_utilization(TPS("End CPU kthread@rcu_yield"));
-	*statusp = RCU_KTHREAD_WAITING;
-}
-
-/*
- * Set the per-rcu_node kthread's affinity to cover all CPUs that are
- * served by the rcu_node in question.  The CPU hotplug lock is still
- * held, so the value of rnp->qsmaskinit will be stable.
- *
- * We don't include outgoingcpu in the affinity set, use -1 if there is
- * no outgoing CPU.  If there are no CPUs left in the affinity set,
- * this function allows the kthread to execute on any CPU.
- */
-static void rcu_boost_kthread_setaffinity(struct rcu_node *rnp, int outgoingcpu)
-{
-	struct task_struct *t = rnp->boost_kthread_task;
-	unsigned long mask = rnp->qsmaskinit;
-	cpumask_var_t cm;
-	int cpu;
-
-	if (!t)
-		return;
-	if (!zalloc_cpumask_var(&cm, GFP_KERNEL))
-		return;
-	for (cpu = rnp->grplo; cpu <= rnp->grphi; cpu++, mask >>= 1)
-		if ((mask & 0x1) && cpu != outgoingcpu)
-			cpumask_set_cpu(cpu, cm);
-	if (cpumask_weight(cm) == 0) {
-		cpumask_setall(cm);
-		for (cpu = rnp->grplo; cpu <= rnp->grphi; cpu++)
-			cpumask_clear_cpu(cpu, cm);
-		WARN_ON_ONCE(cpumask_weight(cm) == 0);
-	}
-	set_cpus_allowed_ptr(t, cm);
-	free_cpumask_var(cm);
-}
-
-static struct smp_hotplug_thread rcu_cpu_thread_spec = {
-	.store			= &rcu_cpu_kthread_task,
-	.thread_should_run	= rcu_cpu_kthread_should_run,
-	.thread_fn		= rcu_cpu_kthread,
-	.thread_comm		= "rcuc/%u",
-	.setup			= rcu_cpu_kthread_setup,
-	.park			= rcu_cpu_kthread_park,
-};
-
-/*
- * Spawn all kthreads -- called as soon as the scheduler is running.
- */
-static int __init rcu_spawn_kthreads(void)
-{
-	struct rcu_node *rnp;
-	int cpu;
-
-	rcu_scheduler_fully_active = 1;
-	for_each_possible_cpu(cpu)
-		per_cpu(rcu_cpu_has_work, cpu) = 0;
-	BUG_ON(smpboot_register_percpu_thread(&rcu_cpu_thread_spec));
-	rnp = rcu_get_root(rcu_state);
-	(void)rcu_spawn_one_boost_kthread(rcu_state, rnp);
-	if (NUM_RCU_NODES > 1) {
-		rcu_for_each_leaf_node(rcu_state, rnp)
-			(void)rcu_spawn_one_boost_kthread(rcu_state, rnp);
-	}
-	return 0;
-}
-early_initcall(rcu_spawn_kthreads);
-
-static void rcu_prepare_kthreads(int cpu)
-{
-	struct rcu_data *rdp = per_cpu_ptr(rcu_state->rda, cpu);
-	struct rcu_node *rnp = rdp->mynode;
-
-	/* Fire up the incoming CPU's kthread and leaf rcu_node kthread. */
-	if (rcu_scheduler_fully_active)
-		(void)rcu_spawn_one_boost_kthread(rcu_state, rnp);
-}
-
-#else /* #ifdef CONFIG_RCU_BOOST */
-
-static void rcu_initiate_boost(struct rcu_node *rnp, unsigned long flags)
-{
-	raw_spin_unlock_irqrestore(&rnp->lock, flags);
-}
-
-static void invoke_rcu_callbacks_kthread(void)
-{
-	WARN_ON_ONCE(1);
-}
-
-static bool rcu_is_callbacks_kthread(void)
-{
-	return false;
-}
-
-static void rcu_preempt_boost_start_gp(struct rcu_node *rnp)
-{
-}
-
-static void rcu_boost_kthread_setaffinity(struct rcu_node *rnp, int outgoingcpu)
-{
-}
-
-static int __init rcu_scheduler_really_started(void)
-{
-	rcu_scheduler_fully_active = 1;
-	return 0;
-}
-early_initcall(rcu_scheduler_really_started);
-
-static void rcu_prepare_kthreads(int cpu)
-{
-}
-
-#endif /* #else #ifdef CONFIG_RCU_BOOST */
-
-#if !defined(CONFIG_RCU_FAST_NO_HZ)
-
-/*
- * Check to see if any future RCU-related work will need to be done
- * by the current CPU, even if none need be done immediately, returning
- * 1 if so.  This function is part of the RCU implementation; it is -not-
- * an exported member of the RCU API.
- *
- * Because we not have RCU_FAST_NO_HZ, just check whether this CPU needs
- * any flavor of RCU.
- */
-int rcu_needs_cpu(int cpu, unsigned long *delta_jiffies)
-{
-	*delta_jiffies = ULONG_MAX;
-	return rcu_cpu_has_callbacks(cpu, NULL);
-}
-
-/*
- * Because we do not have RCU_FAST_NO_HZ, don't bother cleaning up
- * after it.
- */
-static void rcu_cleanup_after_idle(int cpu)
-{
-}
-
-/*
- * Do the idle-entry grace-period work, which, because CONFIG_RCU_FAST_NO_HZ=n,
- * is nothing.
- */
-static void rcu_prepare_for_idle(int cpu)
-{
-}
-
-/*
- * Don't bother keeping a running count of the number of RCU callbacks
- * posted because CONFIG_RCU_FAST_NO_HZ=n.
- */
-static void rcu_idle_count_callbacks_posted(void)
-{
-}
-
-#else /* #if !defined(CONFIG_RCU_FAST_NO_HZ) */
-
-/*
- * This code is invoked when a CPU goes idle, at which point we want
- * to have the CPU do everything required for RCU so that it can enter
- * the energy-efficient dyntick-idle mode.  This is handled by a
- * state machine implemented by rcu_prepare_for_idle() below.
- *
- * The following three proprocessor symbols control this state machine:
- *
- * RCU_IDLE_GP_DELAY gives the number of jiffies that a CPU is permitted
- *	to sleep in dyntick-idle mode with RCU callbacks pending.  This
- *	is sized to be roughly one RCU grace period.  Those energy-efficiency
- *	benchmarkers who might otherwise be tempted to set this to a large
- *	number, be warned: Setting RCU_IDLE_GP_DELAY too high can hang your
- *	system.  And if you are -that- concerned about energy efficiency,
- *	just power the system down and be done with it!
- * RCU_IDLE_LAZY_GP_DELAY gives the number of jiffies that a CPU is
- *	permitted to sleep in dyntick-idle mode with only lazy RCU
- *	callbacks pending.  Setting this too high can OOM your system.
- *
- * The values below work well in practice.  If future workloads require
- * adjustment, they can be converted into kernel config parameters, though
- * making the state machine smarter might be a better option.
- */
-#define RCU_IDLE_GP_DELAY 4		/* Roughly one grace period. */
-#define RCU_IDLE_LAZY_GP_DELAY (6 * HZ)	/* Roughly six seconds. */
-
-static int rcu_idle_gp_delay = RCU_IDLE_GP_DELAY;
-module_param(rcu_idle_gp_delay, int, 0644);
-static int rcu_idle_lazy_gp_delay = RCU_IDLE_LAZY_GP_DELAY;
-module_param(rcu_idle_lazy_gp_delay, int, 0644);
-
-extern int tick_nohz_enabled;
-
-/*
- * Try to advance callbacks for all flavors of RCU on the current CPU, but
- * only if it has been awhile since the last time we did so.  Afterwards,
- * if there are any callbacks ready for immediate invocation, return true.
- */
-static bool rcu_try_advance_all_cbs(void)
-{
-	bool cbs_ready = false;
-	struct rcu_data *rdp;
-	struct rcu_dynticks *rdtp = this_cpu_ptr(&rcu_dynticks);
-	struct rcu_node *rnp;
-	struct rcu_state *rsp;
-
-	/* Exit early if we advanced recently. */
-	if (jiffies == rdtp->last_advance_all)
-		return 0;
-	rdtp->last_advance_all = jiffies;
-
-	for_each_rcu_flavor(rsp) {
-		rdp = this_cpu_ptr(rsp->rda);
-		rnp = rdp->mynode;
-
-		/*
-		 * Don't bother checking unless a grace period has
-		 * completed since we last checked and there are
-		 * callbacks not yet ready to invoke.
-		 */
-		if (rdp->completed != rnp->completed &&
-		    rdp->nxttail[RCU_DONE_TAIL] != rdp->nxttail[RCU_NEXT_TAIL])
-			note_gp_changes(rsp, rdp);
-
-		if (cpu_has_callbacks_ready_to_invoke(rdp))
-			cbs_ready = true;
-	}
-	return cbs_ready;
-}
-
-/*
- * Allow the CPU to enter dyntick-idle mode unless it has callbacks ready
- * to invoke.  If the CPU has callbacks, try to advance them.  Tell the
- * caller to set the timeout based on whether or not there are non-lazy
- * callbacks.
- *
- * The caller must have disabled interrupts.
- */
-int rcu_needs_cpu(int cpu, unsigned long *dj)
-{
-	struct rcu_dynticks *rdtp = &per_cpu(rcu_dynticks, cpu);
-
-	/* Snapshot to detect later posting of non-lazy callback. */
-	rdtp->nonlazy_posted_snap = rdtp->nonlazy_posted;
-
-	/* If no callbacks, RCU doesn't need the CPU. */
-	if (!rcu_cpu_has_callbacks(cpu, &rdtp->all_lazy)) {
-		*dj = ULONG_MAX;
-		return 0;
-	}
-
-	/* Attempt to advance callbacks. */
-	if (rcu_try_advance_all_cbs()) {
-		/* Some ready to invoke, so initiate later invocation. */
-		invoke_rcu_core();
-		return 1;
-	}
-	rdtp->last_accelerate = jiffies;
-
-	/* Request timer delay depending on laziness, and round. */
-	if (!rdtp->all_lazy) {
-		*dj = round_up(rcu_idle_gp_delay + jiffies,
-			       rcu_idle_gp_delay) - jiffies;
-	} else {
-		*dj = round_jiffies(rcu_idle_lazy_gp_delay + jiffies) - jiffies;
-	}
-	return 0;
-}
-
-/*
- * Prepare a CPU for idle from an RCU perspective.  The first major task
- * is to sense whether nohz mode has been enabled or disabled via sysfs.
- * The second major task is to check to see if a non-lazy callback has
- * arrived at a CPU that previously had only lazy callbacks.  The third
- * major task is to accelerate (that is, assign grace-period numbers to)
- * any recently arrived callbacks.
- *
- * The caller must have disabled interrupts.
- */
-static void rcu_prepare_for_idle(int cpu)
-{
-	struct rcu_data *rdp;
-	struct rcu_dynticks *rdtp = &per_cpu(rcu_dynticks, cpu);
-	struct rcu_node *rnp;
-	struct rcu_state *rsp;
-	int tne;
-
-	/* Handle nohz enablement switches conservatively. */
-	tne = ACCESS_ONCE(tick_nohz_enabled);
-	if (tne != rdtp->tick_nohz_enabled_snap) {
-		if (rcu_cpu_has_callbacks(cpu, NULL))
-			invoke_rcu_core(); /* force nohz to see update. */
-		rdtp->tick_nohz_enabled_snap = tne;
-		return;
-	}
-	if (!tne)
-		return;
-
-	/* If this is a no-CBs CPU, no callbacks, just return. */
-	if (rcu_is_nocb_cpu(cpu))
-		return;
-
-	/*
-	 * If a non-lazy callback arrived at a CPU having only lazy
-	 * callbacks, invoke RCU core for the side-effect of recalculating
-	 * idle duration on re-entry to idle.
-	 */
-	if (rdtp->all_lazy &&
-	    rdtp->nonlazy_posted != rdtp->nonlazy_posted_snap) {
-		rdtp->all_lazy = false;
-		rdtp->nonlazy_posted_snap = rdtp->nonlazy_posted;
-		invoke_rcu_core();
-		return;
-	}
-
-	/*
-	 * If we have not yet accelerated this jiffy, accelerate all
-	 * callbacks on this CPU.
-	 */
-	if (rdtp->last_accelerate == jiffies)
-		return;
-	rdtp->last_accelerate = jiffies;
-	for_each_rcu_flavor(rsp) {
-		rdp = per_cpu_ptr(rsp->rda, cpu);
-		if (!*rdp->nxttail[RCU_DONE_TAIL])
-			continue;
-		rnp = rdp->mynode;
-		raw_spin_lock(&rnp->lock); /* irqs already disabled. */
-		rcu_accelerate_cbs(rsp, rnp, rdp);
-		raw_spin_unlock(&rnp->lock); /* irqs remain disabled. */
-	}
-}
-
-/*
- * Clean up for exit from idle.  Attempt to advance callbacks based on
- * any grace periods that elapsed while the CPU was idle, and if any
- * callbacks are now ready to invoke, initiate invocation.
- */
-static void rcu_cleanup_after_idle(int cpu)
-{
-
-	if (rcu_is_nocb_cpu(cpu))
-		return;
-	if (rcu_try_advance_all_cbs())
-		invoke_rcu_core();
-}
-
-/*
- * Keep a running count of the number of non-lazy callbacks posted
- * on this CPU.  This running counter (which is never decremented) allows
- * rcu_prepare_for_idle() to detect when something out of the idle loop
- * posts a callback, even if an equal number of callbacks are invoked.
- * Of course, callbacks should only be posted from within a trace event
- * designed to be called from idle or from within RCU_NONIDLE().
- */
-static void rcu_idle_count_callbacks_posted(void)
-{
-	__this_cpu_add(rcu_dynticks.nonlazy_posted, 1);
-}
-
-/*
- * Data for flushing lazy RCU callbacks at OOM time.
- */
-static atomic_t oom_callback_count;
-static DECLARE_WAIT_QUEUE_HEAD(oom_callback_wq);
-
-/*
- * RCU OOM callback -- decrement the outstanding count and deliver the
- * wake-up if we are the last one.
- */
-static void rcu_oom_callback(struct rcu_head *rhp)
-{
-	if (atomic_dec_and_test(&oom_callback_count))
-		wake_up(&oom_callback_wq);
-}
-
-/*
- * Post an rcu_oom_notify callback on the current CPU if it has at
- * least one lazy callback.  This will unnecessarily post callbacks
- * to CPUs that already have a non-lazy callback at the end of their
- * callback list, but this is an infrequent operation, so accept some
- * extra overhead to keep things simple.
- */
-static void rcu_oom_notify_cpu(void *unused)
-{
-	struct rcu_state *rsp;
-	struct rcu_data *rdp;
-
-	for_each_rcu_flavor(rsp) {
-		rdp = __this_cpu_ptr(rsp->rda);
-		if (rdp->qlen_lazy != 0) {
-			atomic_inc(&oom_callback_count);
-			rsp->call(&rdp->oom_head, rcu_oom_callback);
-		}
-	}
-}
-
-/*
- * If low on memory, ensure that each CPU has a non-lazy callback.
- * This will wake up CPUs that have only lazy callbacks, in turn
- * ensuring that they free up the corresponding memory in a timely manner.
- * Because an uncertain amount of memory will be freed in some uncertain
- * timeframe, we do not claim to have freed anything.
- */
-static int rcu_oom_notify(struct notifier_block *self,
-			  unsigned long notused, void *nfreed)
-{
-	int cpu;
-
-	/* Wait for callbacks from earlier instance to complete. */
-	wait_event(oom_callback_wq, atomic_read(&oom_callback_count) == 0);
-
-	/*
-	 * Prevent premature wakeup: ensure that all increments happen
-	 * before there is a chance of the counter reaching zero.
-	 */
-	atomic_set(&oom_callback_count, 1);
-
-	get_online_cpus();
-	for_each_online_cpu(cpu) {
-		smp_call_function_single(cpu, rcu_oom_notify_cpu, NULL, 1);
-		cond_resched();
-	}
-	put_online_cpus();
-
-	/* Unconditionally decrement: no need to wake ourselves up. */
-	atomic_dec(&oom_callback_count);
-
-	return NOTIFY_OK;
-}
-
-static struct notifier_block rcu_oom_nb = {
-	.notifier_call = rcu_oom_notify
-};
-
-static int __init rcu_register_oom_notifier(void)
-{
-	register_oom_notifier(&rcu_oom_nb);
-	return 0;
-}
-early_initcall(rcu_register_oom_notifier);
-
-#endif /* #else #if !defined(CONFIG_RCU_FAST_NO_HZ) */
-
-#ifdef CONFIG_RCU_CPU_STALL_INFO
-
-#ifdef CONFIG_RCU_FAST_NO_HZ
-
-static void print_cpu_stall_fast_no_hz(char *cp, int cpu)
-{
-	struct rcu_dynticks *rdtp = &per_cpu(rcu_dynticks, cpu);
-	unsigned long nlpd = rdtp->nonlazy_posted - rdtp->nonlazy_posted_snap;
-
-	sprintf(cp, "last_accelerate: %04lx/%04lx, nonlazy_posted: %ld, %c%c",
-		rdtp->last_accelerate & 0xffff, jiffies & 0xffff,
-		ulong2long(nlpd),
-		rdtp->all_lazy ? 'L' : '.',
-		rdtp->tick_nohz_enabled_snap ? '.' : 'D');
-}
-
-#else /* #ifdef CONFIG_RCU_FAST_NO_HZ */
-
-static void print_cpu_stall_fast_no_hz(char *cp, int cpu)
-{
-	*cp = '\0';
-}
-
-#endif /* #else #ifdef CONFIG_RCU_FAST_NO_HZ */
-
-/* Initiate the stall-info list. */
-static void print_cpu_stall_info_begin(void)
-{
-	pr_cont("\n");
-}
-
-/*
- * Print out diagnostic information for the specified stalled CPU.
- *
- * If the specified CPU is aware of the current RCU grace period
- * (flavor specified by rsp), then print the number of scheduling
- * clock interrupts the CPU has taken during the time that it has
- * been aware.  Otherwise, print the number of RCU grace periods
- * that this CPU is ignorant of, for example, "1" if the CPU was
- * aware of the previous grace period.
- *
- * Also print out idle and (if CONFIG_RCU_FAST_NO_HZ) idle-entry info.
- */
-static void print_cpu_stall_info(struct rcu_state *rsp, int cpu)
-{
-	char fast_no_hz[72];
-	struct rcu_data *rdp = per_cpu_ptr(rsp->rda, cpu);
-	struct rcu_dynticks *rdtp = rdp->dynticks;
-	char *ticks_title;
-	unsigned long ticks_value;
-
-	if (rsp->gpnum == rdp->gpnum) {
-		ticks_title = "ticks this GP";
-		ticks_value = rdp->ticks_this_gp;
-	} else {
-		ticks_title = "GPs behind";
-		ticks_value = rsp->gpnum - rdp->gpnum;
-	}
-	print_cpu_stall_fast_no_hz(fast_no_hz, cpu);
-	pr_err("\t%d: (%lu %s) idle=%03x/%llx/%d softirq=%u/%u %s\n",
-	       cpu, ticks_value, ticks_title,
-	       atomic_read(&rdtp->dynticks) & 0xfff,
-	       rdtp->dynticks_nesting, rdtp->dynticks_nmi_nesting,
-	       rdp->softirq_snap, kstat_softirqs_cpu(RCU_SOFTIRQ, cpu),
-	       fast_no_hz);
-}
-
-/* Terminate the stall-info list. */
-static void print_cpu_stall_info_end(void)
-{
-	pr_err("\t");
-}
-
-/* Zero ->ticks_this_gp for all flavors of RCU. */
-static void zero_cpu_stall_ticks(struct rcu_data *rdp)
-{
-	rdp->ticks_this_gp = 0;
-	rdp->softirq_snap = kstat_softirqs_cpu(RCU_SOFTIRQ, smp_processor_id());
-}
-
-/* Increment ->ticks_this_gp for all flavors of RCU. */
-static void increment_cpu_stall_ticks(void)
-{
-	struct rcu_state *rsp;
-
-	for_each_rcu_flavor(rsp)
-		__this_cpu_ptr(rsp->rda)->ticks_this_gp++;
-}
-
-#else /* #ifdef CONFIG_RCU_CPU_STALL_INFO */
-
-static void print_cpu_stall_info_begin(void)
-{
-	pr_cont(" {");
-}
-
-static void print_cpu_stall_info(struct rcu_state *rsp, int cpu)
-{
-	pr_cont(" %d", cpu);
-}
-
-static void print_cpu_stall_info_end(void)
-{
-	pr_cont("} ");
-}
-
-static void zero_cpu_stall_ticks(struct rcu_data *rdp)
-{
-}
-
-static void increment_cpu_stall_ticks(void)
-{
-}
-
-#endif /* #else #ifdef CONFIG_RCU_CPU_STALL_INFO */
-
-#ifdef CONFIG_RCU_NOCB_CPU
-
-/*
- * Offload callback processing from the boot-time-specified set of CPUs
- * specified by rcu_nocb_mask.  For each CPU in the set, there is a
- * kthread created that pulls the callbacks from the corresponding CPU,
- * waits for a grace period to elapse, and invokes the callbacks.
- * The no-CBs CPUs do a wake_up() on their kthread when they insert
- * a callback into any empty list, unless the rcu_nocb_poll boot parameter
- * has been specified, in which case each kthread actively polls its
- * CPU.  (Which isn't so great for energy efficiency, but which does
- * reduce RCU's overhead on that CPU.)
- *
- * This is intended to be used in conjunction with Frederic Weisbecker's
- * adaptive-idle work, which would seriously reduce OS jitter on CPUs
- * running CPU-bound user-mode computations.
- *
- * Offloading of callback processing could also in theory be used as
- * an energy-efficiency measure because CPUs with no RCU callbacks
- * queued are more aggressive about entering dyntick-idle mode.
- */
-
-
-/* Parse the boot-time rcu_nocb_mask CPU list from the kernel parameters. */
-static int __init rcu_nocb_setup(char *str)
-{
-	alloc_bootmem_cpumask_var(&rcu_nocb_mask);
-	have_rcu_nocb_mask = true;
-	cpulist_parse(str, rcu_nocb_mask);
-	return 1;
-}
-__setup("rcu_nocbs=", rcu_nocb_setup);
-
-static int __init parse_rcu_nocb_poll(char *arg)
-{
-	rcu_nocb_poll = 1;
-	return 0;
-}
-early_param("rcu_nocb_poll", parse_rcu_nocb_poll);
-
-/*
- * Do any no-CBs CPUs need another grace period?
- *
- * Interrupts must be disabled.  If the caller does not hold the root
- * rnp_node structure's ->lock, the results are advisory only.
- */
-static int rcu_nocb_needs_gp(struct rcu_state *rsp)
-{
-	struct rcu_node *rnp = rcu_get_root(rsp);
-
-	return rnp->need_future_gp[(ACCESS_ONCE(rnp->completed) + 1) & 0x1];
-}
-
-/*
- * Wake up any no-CBs CPUs' kthreads that were waiting on the just-ended
- * grace period.
- */
-static void rcu_nocb_gp_cleanup(struct rcu_state *rsp, struct rcu_node *rnp)
-{
-	wake_up_all(&rnp->nocb_gp_wq[rnp->completed & 0x1]);
-}
-
-/*
- * Set the root rcu_node structure's ->need_future_gp field
- * based on the sum of those of all rcu_node structures.  This does
- * double-count the root rcu_node structure's requests, but this
- * is necessary to handle the possibility of a rcu_nocb_kthread()
- * having awakened during the time that the rcu_node structures
- * were being updated for the end of the previous grace period.
- */
-static void rcu_nocb_gp_set(struct rcu_node *rnp, int nrq)
-{
-	rnp->need_future_gp[(rnp->completed + 1) & 0x1] += nrq;
-}
-
-static void rcu_init_one_nocb(struct rcu_node *rnp)
-{
-	init_waitqueue_head(&rnp->nocb_gp_wq[0]);
-	init_waitqueue_head(&rnp->nocb_gp_wq[1]);
-}
-
-/* Is the specified CPU a no-CPUs CPU? */
-bool rcu_is_nocb_cpu(int cpu)
-{
-	if (have_rcu_nocb_mask)
-		return cpumask_test_cpu(cpu, rcu_nocb_mask);
-	return false;
-}
-
-/*
- * Enqueue the specified string of rcu_head structures onto the specified
- * CPU's no-CBs lists.  The CPU is specified by rdp, the head of the
- * string by rhp, and the tail of the string by rhtp.  The non-lazy/lazy
- * counts are supplied by rhcount and rhcount_lazy.
- *
- * If warranted, also wake up the kthread servicing this CPUs queues.
- */
-static void __call_rcu_nocb_enqueue(struct rcu_data *rdp,
-				    struct rcu_head *rhp,
-				    struct rcu_head **rhtp,
-				    int rhcount, int rhcount_lazy)
-{
-	int len;
-	struct rcu_head **old_rhpp;
-	struct task_struct *t;
-
-	/* Enqueue the callback on the nocb list and update counts. */
-	old_rhpp = xchg(&rdp->nocb_tail, rhtp);
-	ACCESS_ONCE(*old_rhpp) = rhp;
-	atomic_long_add(rhcount, &rdp->nocb_q_count);
-	atomic_long_add(rhcount_lazy, &rdp->nocb_q_count_lazy);
-
-	/* If we are not being polled and there is a kthread, awaken it ... */
-	t = ACCESS_ONCE(rdp->nocb_kthread);
-	if (rcu_nocb_poll || !t) {
-		trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
-				    TPS("WakeNotPoll"));
-		return;
-	}
-	len = atomic_long_read(&rdp->nocb_q_count);
-	if (old_rhpp == &rdp->nocb_head) {
-		wake_up(&rdp->nocb_wq); /* ... only if queue was empty ... */
-		rdp->qlen_last_fqs_check = 0;
-		trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu, TPS("WakeEmpty"));
-	} else if (len > rdp->qlen_last_fqs_check + qhimark) {
-		wake_up_process(t); /* ... or if many callbacks queued. */
-		rdp->qlen_last_fqs_check = LONG_MAX / 2;
-		trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu, TPS("WakeOvf"));
-	} else {
-		trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu, TPS("WakeNot"));
-	}
-	return;
-}
-
-/*
- * This is a helper for __call_rcu(), which invokes this when the normal
- * callback queue is inoperable.  If this is not a no-CBs CPU, this
- * function returns failure back to __call_rcu(), which can complain
- * appropriately.
- *
- * Otherwise, this function queues the callback where the corresponding
- * "rcuo" kthread can find it.
- */
-static bool __call_rcu_nocb(struct rcu_data *rdp, struct rcu_head *rhp,
-			    bool lazy)
-{
-
-	if (!rcu_is_nocb_cpu(rdp->cpu))
-		return 0;
-	__call_rcu_nocb_enqueue(rdp, rhp, &rhp->next, 1, lazy);
-	if (__is_kfree_rcu_offset((unsigned long)rhp->func))
-		trace_rcu_kfree_callback(rdp->rsp->name, rhp,
-					 (unsigned long)rhp->func,
-					 -atomic_long_read(&rdp->nocb_q_count_lazy),
-					 -atomic_long_read(&rdp->nocb_q_count));
-	else
-		trace_rcu_callback(rdp->rsp->name, rhp,
-				   -atomic_long_read(&rdp->nocb_q_count_lazy),
-				   -atomic_long_read(&rdp->nocb_q_count));
-	return 1;
-}
-
-/*
- * Adopt orphaned callbacks on a no-CBs CPU, or return 0 if this is
- * not a no-CBs CPU.
- */
-static bool __maybe_unused rcu_nocb_adopt_orphan_cbs(struct rcu_state *rsp,
-						     struct rcu_data *rdp)
-{
-	long ql = rsp->qlen;
-	long qll = rsp->qlen_lazy;
-
-	/* If this is not a no-CBs CPU, tell the caller to do it the old way. */
-	if (!rcu_is_nocb_cpu(smp_processor_id()))
-		return 0;
-	rsp->qlen = 0;
-	rsp->qlen_lazy = 0;
-
-	/* First, enqueue the donelist, if any.  This preserves CB ordering. */
-	if (rsp->orphan_donelist != NULL) {
-		__call_rcu_nocb_enqueue(rdp, rsp->orphan_donelist,
-					rsp->orphan_donetail, ql, qll);
-		ql = qll = 0;
-		rsp->orphan_donelist = NULL;
-		rsp->orphan_donetail = &rsp->orphan_donelist;
-	}
-	if (rsp->orphan_nxtlist != NULL) {
-		__call_rcu_nocb_enqueue(rdp, rsp->orphan_nxtlist,
-					rsp->orphan_nxttail, ql, qll);
-		ql = qll = 0;
-		rsp->orphan_nxtlist = NULL;
-		rsp->orphan_nxttail = &rsp->orphan_nxtlist;
-	}
-	return 1;
-}
-
-/*
- * If necessary, kick off a new grace period, and either way wait
- * for a subsequent grace period to complete.
- */
-static void rcu_nocb_wait_gp(struct rcu_data *rdp)
-{
-	unsigned long c;
-	bool d;
-	unsigned long flags;
-	struct rcu_node *rnp = rdp->mynode;
-
-	raw_spin_lock_irqsave(&rnp->lock, flags);
-	c = rcu_start_future_gp(rnp, rdp);
-	raw_spin_unlock_irqrestore(&rnp->lock, flags);
-
-	/*
-	 * Wait for the grace period.  Do so interruptibly to avoid messing
-	 * up the load average.
-	 */
-	trace_rcu_future_gp(rnp, rdp, c, TPS("StartWait"));
-	for (;;) {
-		wait_event_interruptible(
-			rnp->nocb_gp_wq[c & 0x1],
-			(d = ULONG_CMP_GE(ACCESS_ONCE(rnp->completed), c)));
-		if (likely(d))
-			break;
-		flush_signals(current);
-		trace_rcu_future_gp(rnp, rdp, c, TPS("ResumeWait"));
-	}
-	trace_rcu_future_gp(rnp, rdp, c, TPS("EndWait"));
-	smp_mb(); /* Ensure that CB invocation happens after GP end. */
-}
-
-/*
- * Per-rcu_data kthread, but only for no-CBs CPUs.  Each kthread invokes
- * callbacks queued by the corresponding no-CBs CPU.
- */
-static int rcu_nocb_kthread(void *arg)
-{
-	int c, cl;
-	bool firsttime = 1;
-	struct rcu_head *list;
-	struct rcu_head *next;
-	struct rcu_head **tail;
-	struct rcu_data *rdp = arg;
-
-	/* Each pass through this loop invokes one batch of callbacks */
-	for (;;) {
-		/* If not polling, wait for next batch of callbacks. */
-		if (!rcu_nocb_poll) {
-			trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
-					    TPS("Sleep"));
-			wait_event_interruptible(rdp->nocb_wq, rdp->nocb_head);
-		} else if (firsttime) {
-			firsttime = 0;
-			trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
-					    TPS("Poll"));
-		}
-		list = ACCESS_ONCE(rdp->nocb_head);
-		if (!list) {
-			if (!rcu_nocb_poll)
-				trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
-						    TPS("WokeEmpty"));
-			schedule_timeout_interruptible(1);
-			flush_signals(current);
-			continue;
-		}
-		firsttime = 1;
-		trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
-				    TPS("WokeNonEmpty"));
-
-		/*
-		 * Extract queued callbacks, update counts, and wait
-		 * for a grace period to elapse.
-		 */
-		ACCESS_ONCE(rdp->nocb_head) = NULL;
-		tail = xchg(&rdp->nocb_tail, &rdp->nocb_head);
-		c = atomic_long_xchg(&rdp->nocb_q_count, 0);
-		cl = atomic_long_xchg(&rdp->nocb_q_count_lazy, 0);
-		ACCESS_ONCE(rdp->nocb_p_count) += c;
-		ACCESS_ONCE(rdp->nocb_p_count_lazy) += cl;
-		rcu_nocb_wait_gp(rdp);
-
-		/* Each pass through the following loop invokes a callback. */
-		trace_rcu_batch_start(rdp->rsp->name, cl, c, -1);
-		c = cl = 0;
-		while (list) {
-			next = list->next;
-			/* Wait for enqueuing to complete, if needed. */
-			while (next == NULL && &list->next != tail) {
-				trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
-						    TPS("WaitQueue"));
-				schedule_timeout_interruptible(1);
-				trace_rcu_nocb_wake(rdp->rsp->name, rdp->cpu,
-						    TPS("WokeQueue"));
-				next = list->next;
-			}
-			debug_rcu_head_unqueue(list);
-			local_bh_disable();
-			if (__rcu_reclaim(rdp->rsp->name, list))
-				cl++;
-			c++;
-			local_bh_enable();
-			list = next;
-		}
-		trace_rcu_batch_end(rdp->rsp->name, c, !!list, 0, 0, 1);
-		ACCESS_ONCE(rdp->nocb_p_count) -= c;
-		ACCESS_ONCE(rdp->nocb_p_count_lazy) -= cl;
-		rdp->n_nocbs_invoked += c;
-	}
-	return 0;
-}
-
-/* Initialize per-rcu_data variables for no-CBs CPUs. */
-static void __init rcu_boot_init_nocb_percpu_data(struct rcu_data *rdp)
-{
-	rdp->nocb_tail = &rdp->nocb_head;
-	init_waitqueue_head(&rdp->nocb_wq);
-}
-
-/* Create a kthread for each RCU flavor for each no-CBs CPU. */
-static void __init rcu_spawn_nocb_kthreads(struct rcu_state *rsp)
-{
-	int cpu;
-	struct rcu_data *rdp;
-	struct task_struct *t;
-
-	if (rcu_nocb_mask == NULL)
-		return;
-	for_each_cpu(cpu, rcu_nocb_mask) {
-		rdp = per_cpu_ptr(rsp->rda, cpu);
-		t = kthread_run(rcu_nocb_kthread, rdp,
-				"rcuo%c/%d", rsp->abbr, cpu);
-		BUG_ON(IS_ERR(t));
-		ACCESS_ONCE(rdp->nocb_kthread) = t;
-	}
-}
-
-/* Prevent __call_rcu() from enqueuing callbacks on no-CBs CPUs */
-static bool init_nocb_callback_list(struct rcu_data *rdp)
-{
-	if (rcu_nocb_mask == NULL ||
-	    !cpumask_test_cpu(rdp->cpu, rcu_nocb_mask))
-		return false;
-	rdp->nxttail[RCU_NEXT_TAIL] = NULL;
-	return true;
-}
-
-#else /* #ifdef CONFIG_RCU_NOCB_CPU */
-
-static int rcu_nocb_needs_gp(struct rcu_state *rsp)
-{
-	return 0;
-}
-
-static void rcu_nocb_gp_cleanup(struct rcu_state *rsp, struct rcu_node *rnp)
-{
-}
-
-static void rcu_nocb_gp_set(struct rcu_node *rnp, int nrq)
-{
-}
-
-static void rcu_init_one_nocb(struct rcu_node *rnp)
-{
-}
-
-static bool __call_rcu_nocb(struct rcu_data *rdp, struct rcu_head *rhp,
-			    bool lazy)
-{
-	return 0;
-}
-
-static bool __maybe_unused rcu_nocb_adopt_orphan_cbs(struct rcu_state *rsp,
-						     struct rcu_data *rdp)
-{
-	return 0;
-}
-
-static void __init rcu_boot_init_nocb_percpu_data(struct rcu_data *rdp)
-{
-}
-
-static void __init rcu_spawn_nocb_kthreads(struct rcu_state *rsp)
-{
-}
-
-static bool init_nocb_callback_list(struct rcu_data *rdp)
-{
-	return false;
-}
-
-#endif /* #else #ifdef CONFIG_RCU_NOCB_CPU */
-
-/*
- * An adaptive-ticks CPU can potentially execute in kernel mode for an
- * arbitrarily long period of time with the scheduling-clock tick turned
- * off.  RCU will be paying attention to this CPU because it is in the
- * kernel, but the CPU cannot be guaranteed to be executing the RCU state
- * machine because the scheduling-clock tick has been disabled.  Therefore,
- * if an adaptive-ticks CPU is failing to respond to the current grace
- * period and has not be idle from an RCU perspective, kick it.
- */
-static void rcu_kick_nohz_cpu(int cpu)
-{
-#ifdef CONFIG_NO_HZ_FULL
-	if (tick_nohz_full_cpu(cpu))
-		smp_send_reschedule(cpu);
-#endif /* #ifdef CONFIG_NO_HZ_FULL */
-}
-
-
-#ifdef CONFIG_NO_HZ_FULL_SYSIDLE
-
-/*
- * Define RCU flavor that holds sysidle state.  This needs to be the
- * most active flavor of RCU.
- */
-#ifdef CONFIG_PREEMPT_RCU
-static struct rcu_state *rcu_sysidle_state = &rcu_preempt_state;
-#else /* #ifdef CONFIG_PREEMPT_RCU */
-static struct rcu_state *rcu_sysidle_state = &rcu_sched_state;
-#endif /* #else #ifdef CONFIG_PREEMPT_RCU */
-
-static int full_sysidle_state;		/* Current system-idle state. */
-#define RCU_SYSIDLE_NOT		0	/* Some CPU is not idle. */
-#define RCU_SYSIDLE_SHORT	1	/* All CPUs idle for brief period. */
-#define RCU_SYSIDLE_LONG	2	/* All CPUs idle for long enough. */
-#define RCU_SYSIDLE_FULL	3	/* All CPUs idle, ready for sysidle. */
-#define RCU_SYSIDLE_FULL_NOTED	4	/* Actually entered sysidle state. */
-
-/*
- * Invoked to note exit from irq or task transition to idle.  Note that
- * usermode execution does -not- count as idle here!  After all, we want
- * to detect full-system idle states, not RCU quiescent states and grace
- * periods.  The caller must have disabled interrupts.
- */
-static void rcu_sysidle_enter(struct rcu_dynticks *rdtp, int irq)
-{
-	unsigned long j;
-
-	/* Adjust nesting, check for fully idle. */
-	if (irq) {
-		rdtp->dynticks_idle_nesting--;
-		WARN_ON_ONCE(rdtp->dynticks_idle_nesting < 0);
-		if (rdtp->dynticks_idle_nesting != 0)
-			return;  /* Still not fully idle. */
-	} else {
-		if ((rdtp->dynticks_idle_nesting & DYNTICK_TASK_NEST_MASK) ==
-		    DYNTICK_TASK_NEST_VALUE) {
-			rdtp->dynticks_idle_nesting = 0;
-		} else {
-			rdtp->dynticks_idle_nesting -= DYNTICK_TASK_NEST_VALUE;
-			WARN_ON_ONCE(rdtp->dynticks_idle_nesting < 0);
-			return;  /* Still not fully idle. */
-		}
-	}
-
-	/* Record start of fully idle period. */
-	j = jiffies;
-	ACCESS_ONCE(rdtp->dynticks_idle_jiffies) = j;
-	smp_mb__before_atomic_inc();
-	atomic_inc(&rdtp->dynticks_idle);
-	smp_mb__after_atomic_inc();
-	WARN_ON_ONCE(atomic_read(&rdtp->dynticks_idle) & 0x1);
-}
-
-/*
- * Unconditionally force exit from full system-idle state.  This is
- * invoked when a normal CPU exits idle, but must be called separately
- * for the timekeeping CPU (tick_do_timer_cpu).  The reason for this
- * is that the timekeeping CPU is permitted to take scheduling-clock
- * interrupts while the system is in system-idle state, and of course
- * rcu_sysidle_exit() has no way of distinguishing a scheduling-clock
- * interrupt from any other type of interrupt.
- */
-void rcu_sysidle_force_exit(void)
-{
-	int oldstate = ACCESS_ONCE(full_sysidle_state);
-	int newoldstate;
-
-	/*
-	 * Each pass through the following loop attempts to exit full
-	 * system-idle state.  If contention proves to be a problem,
-	 * a trylock-based contention tree could be used here.
-	 */
-	while (oldstate > RCU_SYSIDLE_SHORT) {
-		newoldstate = cmpxchg(&full_sysidle_state,
-				      oldstate, RCU_SYSIDLE_NOT);
-		if (oldstate == newoldstate &&
-		    oldstate == RCU_SYSIDLE_FULL_NOTED) {
-			rcu_kick_nohz_cpu(tick_do_timer_cpu);
-			return; /* We cleared it, done! */
-		}
-		oldstate = newoldstate;
-	}
-	smp_mb(); /* Order initial oldstate fetch vs. later non-idle work. */
-}
-
-/*
- * Invoked to note entry to irq or task transition from idle.  Note that
- * usermode execution does -not- count as idle here!  The caller must
- * have disabled interrupts.
- */
-static void rcu_sysidle_exit(struct rcu_dynticks *rdtp, int irq)
-{
-	/* Adjust nesting, check for already non-idle. */
-	if (irq) {
-		rdtp->dynticks_idle_nesting++;
-		WARN_ON_ONCE(rdtp->dynticks_idle_nesting <= 0);
-		if (rdtp->dynticks_idle_nesting != 1)
-			return; /* Already non-idle. */
-	} else {
-		/*
-		 * Allow for irq misnesting.  Yes, it really is possible
-		 * to enter an irq handler then never leave it, and maybe
-		 * also vice versa.  Handle both possibilities.
-		 */
-		if (rdtp->dynticks_idle_nesting & DYNTICK_TASK_NEST_MASK) {
-			rdtp->dynticks_idle_nesting += DYNTICK_TASK_NEST_VALUE;
-			WARN_ON_ONCE(rdtp->dynticks_idle_nesting <= 0);
-			return; /* Already non-idle. */
-		} else {
-			rdtp->dynticks_idle_nesting = DYNTICK_TASK_EXIT_IDLE;
-		}
-	}
-
-	/* Record end of idle period. */
-	smp_mb__before_atomic_inc();
-	atomic_inc(&rdtp->dynticks_idle);
-	smp_mb__after_atomic_inc();
-	WARN_ON_ONCE(!(atomic_read(&rdtp->dynticks_idle) & 0x1));
-
-	/*
-	 * If we are the timekeeping CPU, we are permitted to be non-idle
-	 * during a system-idle state.  This must be the case, because
-	 * the timekeeping CPU has to take scheduling-clock interrupts
-	 * during the time that the system is transitioning to full
-	 * system-idle state.  This means that the timekeeping CPU must
-	 * invoke rcu_sysidle_force_exit() directly if it does anything
-	 * more than take a scheduling-clock interrupt.
-	 */
-	if (smp_processor_id() == tick_do_timer_cpu)
-		return;
-
-	/* Update system-idle state: We are clearly no longer fully idle! */
-	rcu_sysidle_force_exit();
-}
-
-/*
- * Check to see if the current CPU is idle.  Note that usermode execution
- * does not count as idle.  The caller must have disabled interrupts.
- */
-static void rcu_sysidle_check_cpu(struct rcu_data *rdp, bool *isidle,
-				  unsigned long *maxj)
-{
-	int cur;
-	unsigned long j;
-	struct rcu_dynticks *rdtp = rdp->dynticks;
-
-	/*
-	 * If some other CPU has already reported non-idle, if this is
-	 * not the flavor of RCU that tracks sysidle state, or if this
-	 * is an offline or the timekeeping CPU, nothing to do.
-	 */
-	if (!*isidle || rdp->rsp != rcu_sysidle_state ||
-	    cpu_is_offline(rdp->cpu) || rdp->cpu == tick_do_timer_cpu)
-		return;
-	if (rcu_gp_in_progress(rdp->rsp))
-		WARN_ON_ONCE(smp_processor_id() != tick_do_timer_cpu);
-
-	/* Pick up current idle and NMI-nesting counter and check. */
-	cur = atomic_read(&rdtp->dynticks_idle);
-	if (cur & 0x1) {
-		*isidle = false; /* We are not idle! */
-		return;
-	}
-	smp_mb(); /* Read counters before timestamps. */
-
-	/* Pick up timestamps. */
-	j = ACCESS_ONCE(rdtp->dynticks_idle_jiffies);
-	/* If this CPU entered idle more recently, update maxj timestamp. */
-	if (ULONG_CMP_LT(*maxj, j))
-		*maxj = j;
-}
-
-/*
- * Is this the flavor of RCU that is handling full-system idle?
- */
-static bool is_sysidle_rcu_state(struct rcu_state *rsp)
-{
-	return rsp == rcu_sysidle_state;
-}
-
-/*
- * Bind the grace-period kthread for the sysidle flavor of RCU to the
- * timekeeping CPU.
- */
-static void rcu_bind_gp_kthread(void)
-{
-	int cpu = ACCESS_ONCE(tick_do_timer_cpu);
-
-	if (cpu < 0 || cpu >= nr_cpu_ids)
-		return;
-	if (raw_smp_processor_id() != cpu)
-		set_cpus_allowed_ptr(current, cpumask_of(cpu));
-}
-
-/*
- * Return a delay in jiffies based on the number of CPUs, rcu_node
- * leaf fanout, and jiffies tick rate.  The idea is to allow larger
- * systems more time to transition to full-idle state in order to
- * avoid the cache thrashing that otherwise occur on the state variable.
- * Really small systems (less than a couple of tens of CPUs) should
- * instead use a single global atomically incremented counter, and later
- * versions of this will automatically reconfigure themselves accordingly.
- */
-static unsigned long rcu_sysidle_delay(void)
-{
-	if (nr_cpu_ids <= CONFIG_NO_HZ_FULL_SYSIDLE_SMALL)
-		return 0;
-	return DIV_ROUND_UP(nr_cpu_ids * HZ, rcu_fanout_leaf * 1000);
-}
-
-/*
- * Advance the full-system-idle state.  This is invoked when all of
- * the non-timekeeping CPUs are idle.
- */
-static void rcu_sysidle(unsigned long j)
-{
-	/* Check the current state. */
-	switch (ACCESS_ONCE(full_sysidle_state)) {
-	case RCU_SYSIDLE_NOT:
-
-		/* First time all are idle, so note a short idle period. */
-		ACCESS_ONCE(full_sysidle_state) = RCU_SYSIDLE_SHORT;
-		break;
-
-	case RCU_SYSIDLE_SHORT:
-
-		/*
-		 * Idle for a bit, time to advance to next state?
-		 * cmpxchg failure means race with non-idle, let them win.
-		 */
-		if (ULONG_CMP_GE(jiffies, j + rcu_sysidle_delay()))
-			(void)cmpxchg(&full_sysidle_state,
-				      RCU_SYSIDLE_SHORT, RCU_SYSIDLE_LONG);
-		break;
-
-	case RCU_SYSIDLE_LONG:
-
-		/*
-		 * Do an additional check pass before advancing to full.
-		 * cmpxchg failure means race with non-idle, let them win.
-		 */
-		if (ULONG_CMP_GE(jiffies, j + rcu_sysidle_delay()))
-			(void)cmpxchg(&full_sysidle_state,
-				      RCU_SYSIDLE_LONG, RCU_SYSIDLE_FULL);
-		break;
-
-	default:
-		break;
-	}
-}
-
-/*
- * Found a non-idle non-timekeeping CPU, so kick the system-idle state
- * back to the beginning.
- */
-static void rcu_sysidle_cancel(void)
-{
-	smp_mb();
-	ACCESS_ONCE(full_sysidle_state) = RCU_SYSIDLE_NOT;
-}
-
-/*
- * Update the sysidle state based on the results of a force-quiescent-state
- * scan of the CPUs' dyntick-idle state.
- */
-static void rcu_sysidle_report(struct rcu_state *rsp, int isidle,
-			       unsigned long maxj, bool gpkt)
-{
-	if (rsp != rcu_sysidle_state)
-		return;  /* Wrong flavor, ignore. */
-	if (gpkt && nr_cpu_ids <= CONFIG_NO_HZ_FULL_SYSIDLE_SMALL)
-		return;  /* Running state machine from timekeeping CPU. */
-	if (isidle)
-		rcu_sysidle(maxj);    /* More idle! */
-	else
-		rcu_sysidle_cancel(); /* Idle is over. */
-}
-
-/*
- * Wrapper for rcu_sysidle_report() when called from the grace-period
- * kthread's context.
- */
-static void rcu_sysidle_report_gp(struct rcu_state *rsp, int isidle,
-				  unsigned long maxj)
-{
-	rcu_sysidle_report(rsp, isidle, maxj, true);
-}
-
-/* Callback and function for forcing an RCU grace period. */
-struct rcu_sysidle_head {
-	struct rcu_head rh;
-	int inuse;
-};
-
-static void rcu_sysidle_cb(struct rcu_head *rhp)
-{
-	struct rcu_sysidle_head *rshp;
-
-	/*
-	 * The following memory barrier is needed to replace the
-	 * memory barriers that would normally be in the memory
-	 * allocator.
-	 */
-	smp_mb();  /* grace period precedes setting inuse. */
-
-	rshp = container_of(rhp, struct rcu_sysidle_head, rh);
-	ACCESS_ONCE(rshp->inuse) = 0;
-}
-
-/*
- * Check to see if the system is fully idle, other than the timekeeping CPU.
- * The caller must have disabled interrupts.
- */
-bool rcu_sys_is_idle(void)
-{
-	static struct rcu_sysidle_head rsh;
-	int rss = ACCESS_ONCE(full_sysidle_state);
-
-	if (WARN_ON_ONCE(smp_processor_id() != tick_do_timer_cpu))
-		return false;
-
-	/* Handle small-system case by doing a full scan of CPUs. */
-	if (nr_cpu_ids <= CONFIG_NO_HZ_FULL_SYSIDLE_SMALL) {
-		int oldrss = rss - 1;
-
-		/*
-		 * One pass to advance to each state up to _FULL.
-		 * Give up if any pass fails to advance the state.
-		 */
-		while (rss < RCU_SYSIDLE_FULL && oldrss < rss) {
-			int cpu;
-			bool isidle = true;
-			unsigned long maxj = jiffies - ULONG_MAX / 4;
-			struct rcu_data *rdp;
-
-			/* Scan all the CPUs looking for nonidle CPUs. */
-			for_each_possible_cpu(cpu) {
-				rdp = per_cpu_ptr(rcu_sysidle_state->rda, cpu);
-				rcu_sysidle_check_cpu(rdp, &isidle, &maxj);
-				if (!isidle)
-					break;
-			}
-			rcu_sysidle_report(rcu_sysidle_state,
-					   isidle, maxj, false);
-			oldrss = rss;
-			rss = ACCESS_ONCE(full_sysidle_state);
-		}
-	}
-
-	/* If this is the first observation of an idle period, record it. */
-	if (rss == RCU_SYSIDLE_FULL) {
-		rss = cmpxchg(&full_sysidle_state,
-			      RCU_SYSIDLE_FULL, RCU_SYSIDLE_FULL_NOTED);
-		return rss == RCU_SYSIDLE_FULL;
-	}
-
-	smp_mb(); /* ensure rss load happens before later caller actions. */
-
-	/* If already fully idle, tell the caller (in case of races). */
-	if (rss == RCU_SYSIDLE_FULL_NOTED)
-		return true;
-
-	/*
-	 * If we aren't there yet, and a grace period is not in flight,
-	 * initiate a grace period.  Either way, tell the caller that
-	 * we are not there yet.  We use an xchg() rather than an assignment
-	 * to make up for the memory barriers that would otherwise be
-	 * provided by the memory allocator.
-	 */
-	if (nr_cpu_ids > CONFIG_NO_HZ_FULL_SYSIDLE_SMALL &&
-	    !rcu_gp_in_progress(rcu_sysidle_state) &&
-	    !rsh.inuse && xchg(&rsh.inuse, 1) == 0)
-		call_rcu(&rsh.rh, rcu_sysidle_cb);
-	return false;
-}
-
-/*
- * Initialize dynticks sysidle state for CPUs coming online.
- */
-static void rcu_sysidle_init_percpu_data(struct rcu_dynticks *rdtp)
-{
-	rdtp->dynticks_idle_nesting = DYNTICK_TASK_NEST_VALUE;
-}
-
-#else /* #ifdef CONFIG_NO_HZ_FULL_SYSIDLE */
-
-static void rcu_sysidle_enter(struct rcu_dynticks *rdtp, int irq)
-{
-}
-
-static void rcu_sysidle_exit(struct rcu_dynticks *rdtp, int irq)
-{
-}
-
-static void rcu_sysidle_check_cpu(struct rcu_data *rdp, bool *isidle,
-				  unsigned long *maxj)
-{
-}
-
-static bool is_sysidle_rcu_state(struct rcu_state *rsp)
-{
-	return false;
-}
-
-static void rcu_bind_gp_kthread(void)
-{
-}
-
-static void rcu_sysidle_report_gp(struct rcu_state *rsp, int isidle,
-				  unsigned long maxj)
-{
-}
-
-static void rcu_sysidle_init_percpu_data(struct rcu_dynticks *rdtp)
-{
-}
-
-#endif /* #else #ifdef CONFIG_NO_HZ_FULL_SYSIDLE */
diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c
deleted file mode 100644
index cf6c17412932..000000000000
--- a/kernel/rcutree_trace.c
+++ /dev/null
@@ -1,500 +0,0 @@
-/*
- * Read-Copy Update tracing for classic implementation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright IBM Corporation, 2008
- *
- * Papers:  http://www.rdrop.com/users/paulmck/RCU
- *
- * For detailed explanation of Read-Copy Update mechanism see -
- *		Documentation/RCU
- *
- */
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/smp.h>
-#include <linux/rcupdate.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-#include <linux/atomic.h>
-#include <linux/bitops.h>
-#include <linux/module.h>
-#include <linux/completion.h>
-#include <linux/moduleparam.h>
-#include <linux/percpu.h>
-#include <linux/notifier.h>
-#include <linux/cpu.h>
-#include <linux/mutex.h>
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
-
-#define RCU_TREE_NONCORE
-#include "rcutree.h"
-
-static int r_open(struct inode *inode, struct file *file,
-					const struct seq_operations *op)
-{
-	int ret = seq_open(file, op);
-	if (!ret) {
-		struct seq_file *m = (struct seq_file *)file->private_data;
-		m->private = inode->i_private;
-	}
-	return ret;
-}
-
-static void *r_start(struct seq_file *m, loff_t *pos)
-{
-	struct rcu_state *rsp = (struct rcu_state *)m->private;
-	*pos = cpumask_next(*pos - 1, cpu_possible_mask);
-	if ((*pos) < nr_cpu_ids)
-		return per_cpu_ptr(rsp->rda, *pos);
-	return NULL;
-}
-
-static void *r_next(struct seq_file *m, void *v, loff_t *pos)
-{
-	(*pos)++;
-	return r_start(m, pos);
-}
-
-static void r_stop(struct seq_file *m, void *v)
-{
-}
-
-static int show_rcubarrier(struct seq_file *m, void *v)
-{
-	struct rcu_state *rsp = (struct rcu_state *)m->private;
-	seq_printf(m, "bcc: %d nbd: %lu\n",
-		   atomic_read(&rsp->barrier_cpu_count),
-		   rsp->n_barrier_done);
-	return 0;
-}
-
-static int rcubarrier_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, show_rcubarrier, inode->i_private);
-}
-
-static const struct file_operations rcubarrier_fops = {
-	.owner = THIS_MODULE,
-	.open = rcubarrier_open,
-	.read = seq_read,
-	.llseek = no_llseek,
-	.release = single_release,
-};
-
-#ifdef CONFIG_RCU_BOOST
-
-static char convert_kthread_status(unsigned int kthread_status)
-{
-	if (kthread_status > RCU_KTHREAD_MAX)
-		return '?';
-	return "SRWOY"[kthread_status];
-}
-
-#endif /* #ifdef CONFIG_RCU_BOOST */
-
-static void print_one_rcu_data(struct seq_file *m, struct rcu_data *rdp)
-{
-	long ql, qll;
-
-	if (!rdp->beenonline)
-		return;
-	seq_printf(m, "%3d%cc=%ld g=%ld pq=%d qp=%d",
-		   rdp->cpu,
-		   cpu_is_offline(rdp->cpu) ? '!' : ' ',
-		   ulong2long(rdp->completed), ulong2long(rdp->gpnum),
-		   rdp->passed_quiesce, rdp->qs_pending);
-	seq_printf(m, " dt=%d/%llx/%d df=%lu",
-		   atomic_read(&rdp->dynticks->dynticks),
-		   rdp->dynticks->dynticks_nesting,
-		   rdp->dynticks->dynticks_nmi_nesting,
-		   rdp->dynticks_fqs);
-	seq_printf(m, " of=%lu", rdp->offline_fqs);
-	rcu_nocb_q_lengths(rdp, &ql, &qll);
-	qll += rdp->qlen_lazy;
-	ql += rdp->qlen;
-	seq_printf(m, " ql=%ld/%ld qs=%c%c%c%c",
-		   qll, ql,
-		   ".N"[rdp->nxttail[RCU_NEXT_READY_TAIL] !=
-			rdp->nxttail[RCU_NEXT_TAIL]],
-		   ".R"[rdp->nxttail[RCU_WAIT_TAIL] !=
-			rdp->nxttail[RCU_NEXT_READY_TAIL]],
-		   ".W"[rdp->nxttail[RCU_DONE_TAIL] !=
-			rdp->nxttail[RCU_WAIT_TAIL]],
-		   ".D"[&rdp->nxtlist != rdp->nxttail[RCU_DONE_TAIL]]);
-#ifdef CONFIG_RCU_BOOST
-	seq_printf(m, " kt=%d/%c ktl=%x",
-		   per_cpu(rcu_cpu_has_work, rdp->cpu),
-		   convert_kthread_status(per_cpu(rcu_cpu_kthread_status,
-					  rdp->cpu)),
-		   per_cpu(rcu_cpu_kthread_loops, rdp->cpu) & 0xffff);
-#endif /* #ifdef CONFIG_RCU_BOOST */
-	seq_printf(m, " b=%ld", rdp->blimit);
-	seq_printf(m, " ci=%lu nci=%lu co=%lu ca=%lu\n",
-		   rdp->n_cbs_invoked, rdp->n_nocbs_invoked,
-		   rdp->n_cbs_orphaned, rdp->n_cbs_adopted);
-}
-
-static int show_rcudata(struct seq_file *m, void *v)
-{
-	print_one_rcu_data(m, (struct rcu_data *)v);
-	return 0;
-}
-
-static const struct seq_operations rcudate_op = {
-	.start = r_start,
-	.next  = r_next,
-	.stop  = r_stop,
-	.show  = show_rcudata,
-};
-
-static int rcudata_open(struct inode *inode, struct file *file)
-{
-	return r_open(inode, file, &rcudate_op);
-}
-
-static const struct file_operations rcudata_fops = {
-	.owner = THIS_MODULE,
-	.open = rcudata_open,
-	.read = seq_read,
-	.llseek = no_llseek,
-	.release = seq_release,
-};
-
-static int show_rcuexp(struct seq_file *m, void *v)
-{
-	struct rcu_state *rsp = (struct rcu_state *)m->private;
-
-	seq_printf(m, "s=%lu d=%lu w=%lu tf=%lu wd1=%lu wd2=%lu n=%lu sc=%lu dt=%lu dl=%lu dx=%lu\n",
-		   atomic_long_read(&rsp->expedited_start),
-		   atomic_long_read(&rsp->expedited_done),
-		   atomic_long_read(&rsp->expedited_wrap),
-		   atomic_long_read(&rsp->expedited_tryfail),
-		   atomic_long_read(&rsp->expedited_workdone1),
-		   atomic_long_read(&rsp->expedited_workdone2),
-		   atomic_long_read(&rsp->expedited_normal),
-		   atomic_long_read(&rsp->expedited_stoppedcpus),
-		   atomic_long_read(&rsp->expedited_done_tries),
-		   atomic_long_read(&rsp->expedited_done_lost),
-		   atomic_long_read(&rsp->expedited_done_exit));
-	return 0;
-}
-
-static int rcuexp_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, show_rcuexp, inode->i_private);
-}
-
-static const struct file_operations rcuexp_fops = {
-	.owner = THIS_MODULE,
-	.open = rcuexp_open,
-	.read = seq_read,
-	.llseek = no_llseek,
-	.release = single_release,
-};
-
-#ifdef CONFIG_RCU_BOOST
-
-static void print_one_rcu_node_boost(struct seq_file *m, struct rcu_node *rnp)
-{
-	seq_printf(m, "%d:%d tasks=%c%c%c%c kt=%c ntb=%lu neb=%lu nnb=%lu ",
-		   rnp->grplo, rnp->grphi,
-		   "T."[list_empty(&rnp->blkd_tasks)],
-		   "N."[!rnp->gp_tasks],
-		   "E."[!rnp->exp_tasks],
-		   "B."[!rnp->boost_tasks],
-		   convert_kthread_status(rnp->boost_kthread_status),
-		   rnp->n_tasks_boosted, rnp->n_exp_boosts,
-		   rnp->n_normal_boosts);
-	seq_printf(m, "j=%04x bt=%04x\n",
-		   (int)(jiffies & 0xffff),
-		   (int)(rnp->boost_time & 0xffff));
-	seq_printf(m, "    balk: nt=%lu egt=%lu bt=%lu nb=%lu ny=%lu nos=%lu\n",
-		   rnp->n_balk_blkd_tasks,
-		   rnp->n_balk_exp_gp_tasks,
-		   rnp->n_balk_boost_tasks,
-		   rnp->n_balk_notblocked,
-		   rnp->n_balk_notyet,
-		   rnp->n_balk_nos);
-}
-
-static int show_rcu_node_boost(struct seq_file *m, void *unused)
-{
-	struct rcu_node *rnp;
-
-	rcu_for_each_leaf_node(&rcu_preempt_state, rnp)
-		print_one_rcu_node_boost(m, rnp);
-	return 0;
-}
-
-static int rcu_node_boost_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, show_rcu_node_boost, NULL);
-}
-
-static const struct file_operations rcu_node_boost_fops = {
-	.owner = THIS_MODULE,
-	.open = rcu_node_boost_open,
-	.read = seq_read,
-	.llseek = no_llseek,
-	.release = single_release,
-};
-
-#endif /* #ifdef CONFIG_RCU_BOOST */
-
-static void print_one_rcu_state(struct seq_file *m, struct rcu_state *rsp)
-{
-	unsigned long gpnum;
-	int level = 0;
-	struct rcu_node *rnp;
-
-	gpnum = rsp->gpnum;
-	seq_printf(m, "c=%ld g=%ld s=%d jfq=%ld j=%x ",
-		   ulong2long(rsp->completed), ulong2long(gpnum),
-		   rsp->fqs_state,
-		   (long)(rsp->jiffies_force_qs - jiffies),
-		   (int)(jiffies & 0xffff));
-	seq_printf(m, "nfqs=%lu/nfqsng=%lu(%lu) fqlh=%lu oqlen=%ld/%ld\n",
-		   rsp->n_force_qs, rsp->n_force_qs_ngp,
-		   rsp->n_force_qs - rsp->n_force_qs_ngp,
-		   rsp->n_force_qs_lh, rsp->qlen_lazy, rsp->qlen);
-	for (rnp = &rsp->node[0]; rnp - &rsp->node[0] < rcu_num_nodes; rnp++) {
-		if (rnp->level != level) {
-			seq_puts(m, "\n");
-			level = rnp->level;
-		}
-		seq_printf(m, "%lx/%lx %c%c>%c %d:%d ^%d    ",
-			   rnp->qsmask, rnp->qsmaskinit,
-			   ".G"[rnp->gp_tasks != NULL],
-			   ".E"[rnp->exp_tasks != NULL],
-			   ".T"[!list_empty(&rnp->blkd_tasks)],
-			   rnp->grplo, rnp->grphi, rnp->grpnum);
-	}
-	seq_puts(m, "\n");
-}
-
-static int show_rcuhier(struct seq_file *m, void *v)
-{
-	struct rcu_state *rsp = (struct rcu_state *)m->private;
-	print_one_rcu_state(m, rsp);
-	return 0;
-}
-
-static int rcuhier_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, show_rcuhier, inode->i_private);
-}
-
-static const struct file_operations rcuhier_fops = {
-	.owner = THIS_MODULE,
-	.open = rcuhier_open,
-	.read = seq_read,
-	.llseek = no_llseek,
-	.release = single_release,
-};
-
-static void show_one_rcugp(struct seq_file *m, struct rcu_state *rsp)
-{
-	unsigned long flags;
-	unsigned long completed;
-	unsigned long gpnum;
-	unsigned long gpage;
-	unsigned long gpmax;
-	struct rcu_node *rnp = &rsp->node[0];
-
-	raw_spin_lock_irqsave(&rnp->lock, flags);
-	completed = ACCESS_ONCE(rsp->completed);
-	gpnum = ACCESS_ONCE(rsp->gpnum);
-	if (completed == gpnum)
-		gpage = 0;
-	else
-		gpage = jiffies - rsp->gp_start;
-	gpmax = rsp->gp_max;
-	raw_spin_unlock_irqrestore(&rnp->lock, flags);
-	seq_printf(m, "completed=%ld  gpnum=%ld  age=%ld  max=%ld\n",
-		   ulong2long(completed), ulong2long(gpnum), gpage, gpmax);
-}
-
-static int show_rcugp(struct seq_file *m, void *v)
-{
-	struct rcu_state *rsp = (struct rcu_state *)m->private;
-	show_one_rcugp(m, rsp);
-	return 0;
-}
-
-static int rcugp_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, show_rcugp, inode->i_private);
-}
-
-static const struct file_operations rcugp_fops = {
-	.owner = THIS_MODULE,
-	.open = rcugp_open,
-	.read = seq_read,
-	.llseek = no_llseek,
-	.release = single_release,
-};
-
-static void print_one_rcu_pending(struct seq_file *m, struct rcu_data *rdp)
-{
-	if (!rdp->beenonline)
-		return;
-	seq_printf(m, "%3d%cnp=%ld ",
-		   rdp->cpu,
-		   cpu_is_offline(rdp->cpu) ? '!' : ' ',
-		   rdp->n_rcu_pending);
-	seq_printf(m, "qsp=%ld rpq=%ld cbr=%ld cng=%ld ",
-		   rdp->n_rp_qs_pending,
-		   rdp->n_rp_report_qs,
-		   rdp->n_rp_cb_ready,
-		   rdp->n_rp_cpu_needs_gp);
-	seq_printf(m, "gpc=%ld gps=%ld nn=%ld\n",
-		   rdp->n_rp_gp_completed,
-		   rdp->n_rp_gp_started,
-		   rdp->n_rp_need_nothing);
-}
-
-static int show_rcu_pending(struct seq_file *m, void *v)
-{
-	print_one_rcu_pending(m, (struct rcu_data *)v);
-	return 0;
-}
-
-static const struct seq_operations rcu_pending_op = {
-	.start = r_start,
-	.next  = r_next,
-	.stop  = r_stop,
-	.show  = show_rcu_pending,
-};
-
-static int rcu_pending_open(struct inode *inode, struct file *file)
-{
-	return r_open(inode, file, &rcu_pending_op);
-}
-
-static const struct file_operations rcu_pending_fops = {
-	.owner = THIS_MODULE,
-	.open = rcu_pending_open,
-	.read = seq_read,
-	.llseek = no_llseek,
-	.release = seq_release,
-};
-
-static int show_rcutorture(struct seq_file *m, void *unused)
-{
-	seq_printf(m, "rcutorture test sequence: %lu %s\n",
-		   rcutorture_testseq >> 1,
-		   (rcutorture_testseq & 0x1) ? "(test in progress)" : "");
-	seq_printf(m, "rcutorture update version number: %lu\n",
-		   rcutorture_vernum);
-	return 0;
-}
-
-static int rcutorture_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, show_rcutorture, NULL);
-}
-
-static const struct file_operations rcutorture_fops = {
-	.owner = THIS_MODULE,
-	.open = rcutorture_open,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
-
-static struct dentry *rcudir;
-
-static int __init rcutree_trace_init(void)
-{
-	struct rcu_state *rsp;
-	struct dentry *retval;
-	struct dentry *rspdir;
-
-	rcudir = debugfs_create_dir("rcu", NULL);
-	if (!rcudir)
-		goto free_out;
-
-	for_each_rcu_flavor(rsp) {
-		rspdir = debugfs_create_dir(rsp->name, rcudir);
-		if (!rspdir)
-			goto free_out;
-
-		retval = debugfs_create_file("rcudata", 0444,
-				rspdir, rsp, &rcudata_fops);
-		if (!retval)
-			goto free_out;
-
-		retval = debugfs_create_file("rcuexp", 0444,
-				rspdir, rsp, &rcuexp_fops);
-		if (!retval)
-			goto free_out;
-
-		retval = debugfs_create_file("rcu_pending", 0444,
-				rspdir, rsp, &rcu_pending_fops);
-		if (!retval)
-			goto free_out;
-
-		retval = debugfs_create_file("rcubarrier", 0444,
-				rspdir, rsp, &rcubarrier_fops);
-		if (!retval)
-			goto free_out;
-
-#ifdef CONFIG_RCU_BOOST
-		if (rsp == &rcu_preempt_state) {
-			retval = debugfs_create_file("rcuboost", 0444,
-				rspdir, NULL, &rcu_node_boost_fops);
-			if (!retval)
-				goto free_out;
-		}
-#endif
-
-		retval = debugfs_create_file("rcugp", 0444,
-				rspdir, rsp, &rcugp_fops);
-		if (!retval)
-			goto free_out;
-
-		retval = debugfs_create_file("rcuhier", 0444,
-				rspdir, rsp, &rcuhier_fops);
-		if (!retval)
-			goto free_out;
-	}
-
-	retval = debugfs_create_file("rcutorture", 0444, rcudir,
-						NULL, &rcutorture_fops);
-	if (!retval)
-		goto free_out;
-	return 0;
-free_out:
-	debugfs_remove_recursive(rcudir);
-	return 1;
-}
-
-static void __exit rcutree_trace_cleanup(void)
-{
-	debugfs_remove_recursive(rcudir);
-}
-
-
-module_init(rcutree_trace_init);
-module_exit(rcutree_trace_cleanup);
-
-MODULE_AUTHOR("Paul E. McKenney");
-MODULE_DESCRIPTION("Read-Copy Update tracing for hierarchical implementation");
-MODULE_LICENSE("GPL");
diff --git a/kernel/srcu.c b/kernel/srcu.c
deleted file mode 100644
index 01d5ccb8bfe3..000000000000
--- a/kernel/srcu.c
+++ /dev/null
@@ -1,651 +0,0 @@
-/*
- * Sleepable Read-Copy Update mechanism for mutual exclusion.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- *
- * Copyright (C) IBM Corporation, 2006
- * Copyright (C) Fujitsu, 2012
- *
- * Author: Paul McKenney <paulmck@us.ibm.com>
- *	   Lai Jiangshan <laijs@cn.fujitsu.com>
- *
- * For detailed explanation of Read-Copy Update mechanism see -
- * 		Documentation/RCU/ *.txt
- *
- */
-
-#include <linux/export.h>
-#include <linux/mutex.h>
-#include <linux/percpu.h>
-#include <linux/preempt.h>
-#include <linux/rcupdate.h>
-#include <linux/sched.h>
-#include <linux/smp.h>
-#include <linux/delay.h>
-#include <linux/srcu.h>
-
-#include <trace/events/rcu.h>
-
-#include "rcu.h"
-
-/*
- * Initialize an rcu_batch structure to empty.
- */
-static inline void rcu_batch_init(struct rcu_batch *b)
-{
-	b->head = NULL;
-	b->tail = &b->head;
-}
-
-/*
- * Enqueue a callback onto the tail of the specified rcu_batch structure.
- */
-static inline void rcu_batch_queue(struct rcu_batch *b, struct rcu_head *head)
-{
-	*b->tail = head;
-	b->tail = &head->next;
-}
-
-/*
- * Is the specified rcu_batch structure empty?
- */
-static inline bool rcu_batch_empty(struct rcu_batch *b)
-{
-	return b->tail == &b->head;
-}
-
-/*
- * Remove the callback at the head of the specified rcu_batch structure
- * and return a pointer to it, or return NULL if the structure is empty.
- */
-static inline struct rcu_head *rcu_batch_dequeue(struct rcu_batch *b)
-{
-	struct rcu_head *head;
-
-	if (rcu_batch_empty(b))
-		return NULL;
-
-	head = b->head;
-	b->head = head->next;
-	if (b->tail == &head->next)
-		rcu_batch_init(b);
-
-	return head;
-}
-
-/*
- * Move all callbacks from the rcu_batch structure specified by "from" to
- * the structure specified by "to".
- */
-static inline void rcu_batch_move(struct rcu_batch *to, struct rcu_batch *from)
-{
-	if (!rcu_batch_empty(from)) {
-		*to->tail = from->head;
-		to->tail = from->tail;
-		rcu_batch_init(from);
-	}
-}
-
-static int init_srcu_struct_fields(struct srcu_struct *sp)
-{
-	sp->completed = 0;
-	spin_lock_init(&sp->queue_lock);
-	sp->running = false;
-	rcu_batch_init(&sp->batch_queue);
-	rcu_batch_init(&sp->batch_check0);
-	rcu_batch_init(&sp->batch_check1);
-	rcu_batch_init(&sp->batch_done);
-	INIT_DELAYED_WORK(&sp->work, process_srcu);
-	sp->per_cpu_ref = alloc_percpu(struct srcu_struct_array);
-	return sp->per_cpu_ref ? 0 : -ENOMEM;
-}
-
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-
-int __init_srcu_struct(struct srcu_struct *sp, const char *name,
-		       struct lock_class_key *key)
-{
-	/* Don't re-initialize a lock while it is held. */
-	debug_check_no_locks_freed((void *)sp, sizeof(*sp));
-	lockdep_init_map(&sp->dep_map, name, key, 0);
-	return init_srcu_struct_fields(sp);
-}
-EXPORT_SYMBOL_GPL(__init_srcu_struct);
-
-#else /* #ifdef CONFIG_DEBUG_LOCK_ALLOC */
-
-/**
- * init_srcu_struct - initialize a sleep-RCU structure
- * @sp: structure to initialize.
- *
- * Must invoke this on a given srcu_struct before passing that srcu_struct
- * to any other function.  Each srcu_struct represents a separate domain
- * of SRCU protection.
- */
-int init_srcu_struct(struct srcu_struct *sp)
-{
-	return init_srcu_struct_fields(sp);
-}
-EXPORT_SYMBOL_GPL(init_srcu_struct);
-
-#endif /* #else #ifdef CONFIG_DEBUG_LOCK_ALLOC */
-
-/*
- * Returns approximate total of the readers' ->seq[] values for the
- * rank of per-CPU counters specified by idx.
- */
-static unsigned long srcu_readers_seq_idx(struct srcu_struct *sp, int idx)
-{
-	int cpu;
-	unsigned long sum = 0;
-	unsigned long t;
-
-	for_each_possible_cpu(cpu) {
-		t = ACCESS_ONCE(per_cpu_ptr(sp->per_cpu_ref, cpu)->seq[idx]);
-		sum += t;
-	}
-	return sum;
-}
-
-/*
- * Returns approximate number of readers active on the specified rank
- * of the per-CPU ->c[] counters.
- */
-static unsigned long srcu_readers_active_idx(struct srcu_struct *sp, int idx)
-{
-	int cpu;
-	unsigned long sum = 0;
-	unsigned long t;
-
-	for_each_possible_cpu(cpu) {
-		t = ACCESS_ONCE(per_cpu_ptr(sp->per_cpu_ref, cpu)->c[idx]);
-		sum += t;
-	}
-	return sum;
-}
-
-/*
- * Return true if the number of pre-existing readers is determined to
- * be stably zero.  An example unstable zero can occur if the call
- * to srcu_readers_active_idx() misses an __srcu_read_lock() increment,
- * but due to task migration, sees the corresponding __srcu_read_unlock()
- * decrement.  This can happen because srcu_readers_active_idx() takes
- * time to sum the array, and might in fact be interrupted or preempted
- * partway through the summation.
- */
-static bool srcu_readers_active_idx_check(struct srcu_struct *sp, int idx)
-{
-	unsigned long seq;
-
-	seq = srcu_readers_seq_idx(sp, idx);
-
-	/*
-	 * The following smp_mb() A pairs with the smp_mb() B located in
-	 * __srcu_read_lock().  This pairing ensures that if an
-	 * __srcu_read_lock() increments its counter after the summation
-	 * in srcu_readers_active_idx(), then the corresponding SRCU read-side
-	 * critical section will see any changes made prior to the start
-	 * of the current SRCU grace period.
-	 *
-	 * Also, if the above call to srcu_readers_seq_idx() saw the
-	 * increment of ->seq[], then the call to srcu_readers_active_idx()
-	 * must see the increment of ->c[].
-	 */
-	smp_mb(); /* A */
-
-	/*
-	 * Note that srcu_readers_active_idx() can incorrectly return
-	 * zero even though there is a pre-existing reader throughout.
-	 * To see this, suppose that task A is in a very long SRCU
-	 * read-side critical section that started on CPU 0, and that
-	 * no other reader exists, so that the sum of the counters
-	 * is equal to one.  Then suppose that task B starts executing
-	 * srcu_readers_active_idx(), summing up to CPU 1, and then that
-	 * task C starts reading on CPU 0, so that its increment is not
-	 * summed, but finishes reading on CPU 2, so that its decrement
-	 * -is- summed.  Then when task B completes its sum, it will
-	 * incorrectly get zero, despite the fact that task A has been
-	 * in its SRCU read-side critical section the whole time.
-	 *
-	 * We therefore do a validation step should srcu_readers_active_idx()
-	 * return zero.
-	 */
-	if (srcu_readers_active_idx(sp, idx) != 0)
-		return false;
-
-	/*
-	 * The remainder of this function is the validation step.
-	 * The following smp_mb() D pairs with the smp_mb() C in
-	 * __srcu_read_unlock().  If the __srcu_read_unlock() was seen
-	 * by srcu_readers_active_idx() above, then any destructive
-	 * operation performed after the grace period will happen after
-	 * the corresponding SRCU read-side critical section.
-	 *
-	 * Note that there can be at most NR_CPUS worth of readers using
-	 * the old index, which is not enough to overflow even a 32-bit
-	 * integer.  (Yes, this does mean that systems having more than
-	 * a billion or so CPUs need to be 64-bit systems.)  Therefore,
-	 * the sum of the ->seq[] counters cannot possibly overflow.
-	 * Therefore, the only way that the return values of the two
-	 * calls to srcu_readers_seq_idx() can be equal is if there were
-	 * no increments of the corresponding rank of ->seq[] counts
-	 * in the interim.  But the missed-increment scenario laid out
-	 * above includes an increment of the ->seq[] counter by
-	 * the corresponding __srcu_read_lock().  Therefore, if this
-	 * scenario occurs, the return values from the two calls to
-	 * srcu_readers_seq_idx() will differ, and thus the validation
-	 * step below suffices.
-	 */
-	smp_mb(); /* D */
-
-	return srcu_readers_seq_idx(sp, idx) == seq;
-}
-
-/**
- * srcu_readers_active - returns approximate number of readers.
- * @sp: which srcu_struct to count active readers (holding srcu_read_lock).
- *
- * Note that this is not an atomic primitive, and can therefore suffer
- * severe errors when invoked on an active srcu_struct.  That said, it
- * can be useful as an error check at cleanup time.
- */
-static int srcu_readers_active(struct srcu_struct *sp)
-{
-	int cpu;
-	unsigned long sum = 0;
-
-	for_each_possible_cpu(cpu) {
-		sum += ACCESS_ONCE(per_cpu_ptr(sp->per_cpu_ref, cpu)->c[0]);
-		sum += ACCESS_ONCE(per_cpu_ptr(sp->per_cpu_ref, cpu)->c[1]);
-	}
-	return sum;
-}
-
-/**
- * cleanup_srcu_struct - deconstruct a sleep-RCU structure
- * @sp: structure to clean up.
- *
- * Must invoke this after you are finished using a given srcu_struct that
- * was initialized via init_srcu_struct(), else you leak memory.
- */
-void cleanup_srcu_struct(struct srcu_struct *sp)
-{
-	if (WARN_ON(srcu_readers_active(sp)))
-		return; /* Leakage unless caller handles error. */
-	free_percpu(sp->per_cpu_ref);
-	sp->per_cpu_ref = NULL;
-}
-EXPORT_SYMBOL_GPL(cleanup_srcu_struct);
-
-/*
- * Counts the new reader in the appropriate per-CPU element of the
- * srcu_struct.  Must be called from process context.
- * Returns an index that must be passed to the matching srcu_read_unlock().
- */
-int __srcu_read_lock(struct srcu_struct *sp)
-{
-	int idx;
-
-	idx = ACCESS_ONCE(sp->completed) & 0x1;
-	preempt_disable();
-	ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->c[idx]) += 1;
-	smp_mb(); /* B */  /* Avoid leaking the critical section. */
-	ACCESS_ONCE(this_cpu_ptr(sp->per_cpu_ref)->seq[idx]) += 1;
-	preempt_enable();
-	return idx;
-}
-EXPORT_SYMBOL_GPL(__srcu_read_lock);
-
-/*
- * Removes the count for the old reader from the appropriate per-CPU
- * element of the srcu_struct.  Note that this may well be a different
- * CPU than that which was incremented by the corresponding srcu_read_lock().
- * Must be called from process context.
- */
-void __srcu_read_unlock(struct srcu_struct *sp, int idx)
-{
-	smp_mb(); /* C */  /* Avoid leaking the critical section. */
-	this_cpu_dec(sp->per_cpu_ref->c[idx]);
-}
-EXPORT_SYMBOL_GPL(__srcu_read_unlock);
-
-/*
- * We use an adaptive strategy for synchronize_srcu() and especially for
- * synchronize_srcu_expedited().  We spin for a fixed time period
- * (defined below) to allow SRCU readers to exit their read-side critical
- * sections.  If there are still some readers after 10 microseconds,
- * we repeatedly block for 1-millisecond time periods.  This approach
- * has done well in testing, so there is no need for a config parameter.
- */
-#define SRCU_RETRY_CHECK_DELAY		5
-#define SYNCHRONIZE_SRCU_TRYCOUNT	2
-#define SYNCHRONIZE_SRCU_EXP_TRYCOUNT	12
-
-/*
- * @@@ Wait until all pre-existing readers complete.  Such readers
- * will have used the index specified by "idx".
- * the caller should ensures the ->completed is not changed while checking
- * and idx = (->completed & 1) ^ 1
- */
-static bool try_check_zero(struct srcu_struct *sp, int idx, int trycount)
-{
-	for (;;) {
-		if (srcu_readers_active_idx_check(sp, idx))
-			return true;
-		if (--trycount <= 0)
-			return false;
-		udelay(SRCU_RETRY_CHECK_DELAY);
-	}
-}
-
-/*
- * Increment the ->completed counter so that future SRCU readers will
- * use the other rank of the ->c[] and ->seq[] arrays.  This allows
- * us to wait for pre-existing readers in a starvation-free manner.
- */
-static void srcu_flip(struct srcu_struct *sp)
-{
-	sp->completed++;
-}
-
-/*
- * Enqueue an SRCU callback on the specified srcu_struct structure,
- * initiating grace-period processing if it is not already running.
- */
-void call_srcu(struct srcu_struct *sp, struct rcu_head *head,
-		void (*func)(struct rcu_head *head))
-{
-	unsigned long flags;
-
-	head->next = NULL;
-	head->func = func;
-	spin_lock_irqsave(&sp->queue_lock, flags);
-	rcu_batch_queue(&sp->batch_queue, head);
-	if (!sp->running) {
-		sp->running = true;
-		schedule_delayed_work(&sp->work, 0);
-	}
-	spin_unlock_irqrestore(&sp->queue_lock, flags);
-}
-EXPORT_SYMBOL_GPL(call_srcu);
-
-struct rcu_synchronize {
-	struct rcu_head head;
-	struct completion completion;
-};
-
-/*
- * Awaken the corresponding synchronize_srcu() instance now that a
- * grace period has elapsed.
- */
-static void wakeme_after_rcu(struct rcu_head *head)
-{
-	struct rcu_synchronize *rcu;
-
-	rcu = container_of(head, struct rcu_synchronize, head);
-	complete(&rcu->completion);
-}
-
-static void srcu_advance_batches(struct srcu_struct *sp, int trycount);
-static void srcu_reschedule(struct srcu_struct *sp);
-
-/*
- * Helper function for synchronize_srcu() and synchronize_srcu_expedited().
- */
-static void __synchronize_srcu(struct srcu_struct *sp, int trycount)
-{
-	struct rcu_synchronize rcu;
-	struct rcu_head *head = &rcu.head;
-	bool done = false;
-
-	rcu_lockdep_assert(!lock_is_held(&sp->dep_map) &&
-			   !lock_is_held(&rcu_bh_lock_map) &&
-			   !lock_is_held(&rcu_lock_map) &&
-			   !lock_is_held(&rcu_sched_lock_map),
-			   "Illegal synchronize_srcu() in same-type SRCU (or RCU) read-side critical section");
-
-	might_sleep();
-	init_completion(&rcu.completion);
-
-	head->next = NULL;
-	head->func = wakeme_after_rcu;
-	spin_lock_irq(&sp->queue_lock);
-	if (!sp->running) {
-		/* steal the processing owner */
-		sp->running = true;
-		rcu_batch_queue(&sp->batch_check0, head);
-		spin_unlock_irq(&sp->queue_lock);
-
-		srcu_advance_batches(sp, trycount);
-		if (!rcu_batch_empty(&sp->batch_done)) {
-			BUG_ON(sp->batch_done.head != head);
-			rcu_batch_dequeue(&sp->batch_done);
-			done = true;
-		}
-		/* give the processing owner to work_struct */
-		srcu_reschedule(sp);
-	} else {
-		rcu_batch_queue(&sp->batch_queue, head);
-		spin_unlock_irq(&sp->queue_lock);
-	}
-
-	if (!done)
-		wait_for_completion(&rcu.completion);
-}
-
-/**
- * synchronize_srcu - wait for prior SRCU read-side critical-section completion
- * @sp: srcu_struct with which to synchronize.
- *
- * Wait for the count to drain to zero of both indexes. To avoid the
- * possible starvation of synchronize_srcu(), it waits for the count of
- * the index=((->completed & 1) ^ 1) to drain to zero at first,
- * and then flip the completed and wait for the count of the other index.
- *
- * Can block; must be called from process context.
- *
- * Note that it is illegal to call synchronize_srcu() from the corresponding
- * SRCU read-side critical section; doing so will result in deadlock.
- * However, it is perfectly legal to call synchronize_srcu() on one
- * srcu_struct from some other srcu_struct's read-side critical section.
- */
-void synchronize_srcu(struct srcu_struct *sp)
-{
-	__synchronize_srcu(sp, rcu_expedited
-			   ? SYNCHRONIZE_SRCU_EXP_TRYCOUNT
-			   : SYNCHRONIZE_SRCU_TRYCOUNT);
-}
-EXPORT_SYMBOL_GPL(synchronize_srcu);
-
-/**
- * synchronize_srcu_expedited - Brute-force SRCU grace period
- * @sp: srcu_struct with which to synchronize.
- *
- * Wait for an SRCU grace period to elapse, but be more aggressive about
- * spinning rather than blocking when waiting.
- *
- * Note that it is also illegal to call synchronize_srcu_expedited()
- * from the corresponding SRCU read-side critical section;
- * doing so will result in deadlock.  However, it is perfectly legal
- * to call synchronize_srcu_expedited() on one srcu_struct from some
- * other srcu_struct's read-side critical section, as long as
- * the resulting graph of srcu_structs is acyclic.
- */
-void synchronize_srcu_expedited(struct srcu_struct *sp)
-{
-	__synchronize_srcu(sp, SYNCHRONIZE_SRCU_EXP_TRYCOUNT);
-}
-EXPORT_SYMBOL_GPL(synchronize_srcu_expedited);
-
-/**
- * srcu_barrier - Wait until all in-flight call_srcu() callbacks complete.
- */
-void srcu_barrier(struct srcu_struct *sp)
-{
-	synchronize_srcu(sp);
-}
-EXPORT_SYMBOL_GPL(srcu_barrier);
-
-/**
- * srcu_batches_completed - return batches completed.
- * @sp: srcu_struct on which to report batch completion.
- *
- * Report the number of batches, correlated with, but not necessarily
- * precisely the same as, the number of grace periods that have elapsed.
- */
-long srcu_batches_completed(struct srcu_struct *sp)
-{
-	return sp->completed;
-}
-EXPORT_SYMBOL_GPL(srcu_batches_completed);
-
-#define SRCU_CALLBACK_BATCH	10
-#define SRCU_INTERVAL		1
-
-/*
- * Move any new SRCU callbacks to the first stage of the SRCU grace
- * period pipeline.
- */
-static void srcu_collect_new(struct srcu_struct *sp)
-{
-	if (!rcu_batch_empty(&sp->batch_queue)) {
-		spin_lock_irq(&sp->queue_lock);
-		rcu_batch_move(&sp->batch_check0, &sp->batch_queue);
-		spin_unlock_irq(&sp->queue_lock);
-	}
-}
-
-/*
- * Core SRCU state machine.  Advance callbacks from ->batch_check0 to
- * ->batch_check1 and then to ->batch_done as readers drain.
- */
-static void srcu_advance_batches(struct srcu_struct *sp, int trycount)
-{
-	int idx = 1 ^ (sp->completed & 1);
-
-	/*
-	 * Because readers might be delayed for an extended period after
-	 * fetching ->completed for their index, at any point in time there
-	 * might well be readers using both idx=0 and idx=1.  We therefore
-	 * need to wait for readers to clear from both index values before
-	 * invoking a callback.
-	 */
-
-	if (rcu_batch_empty(&sp->batch_check0) &&
-	    rcu_batch_empty(&sp->batch_check1))
-		return; /* no callbacks need to be advanced */
-
-	if (!try_check_zero(sp, idx, trycount))
-		return; /* failed to advance, will try after SRCU_INTERVAL */
-
-	/*
-	 * The callbacks in ->batch_check1 have already done with their
-	 * first zero check and flip back when they were enqueued on
-	 * ->batch_check0 in a previous invocation of srcu_advance_batches().
-	 * (Presumably try_check_zero() returned false during that
-	 * invocation, leaving the callbacks stranded on ->batch_check1.)
-	 * They are therefore ready to invoke, so move them to ->batch_done.
-	 */
-	rcu_batch_move(&sp->batch_done, &sp->batch_check1);
-
-	if (rcu_batch_empty(&sp->batch_check0))
-		return; /* no callbacks need to be advanced */
-	srcu_flip(sp);
-
-	/*
-	 * The callbacks in ->batch_check0 just finished their
-	 * first check zero and flip, so move them to ->batch_check1
-	 * for future checking on the other idx.
-	 */
-	rcu_batch_move(&sp->batch_check1, &sp->batch_check0);
-
-	/*
-	 * SRCU read-side critical sections are normally short, so check
-	 * at least twice in quick succession after a flip.
-	 */
-	trycount = trycount < 2 ? 2 : trycount;
-	if (!try_check_zero(sp, idx^1, trycount))
-		return; /* failed to advance, will try after SRCU_INTERVAL */
-
-	/*
-	 * The callbacks in ->batch_check1 have now waited for all
-	 * pre-existing readers using both idx values.  They are therefore
-	 * ready to invoke, so move them to ->batch_done.
-	 */
-	rcu_batch_move(&sp->batch_done, &sp->batch_check1);
-}
-
-/*
- * Invoke a limited number of SRCU callbacks that have passed through
- * their grace period.  If there are more to do, SRCU will reschedule
- * the workqueue.
- */
-static void srcu_invoke_callbacks(struct srcu_struct *sp)
-{
-	int i;
-	struct rcu_head *head;
-
-	for (i = 0; i < SRCU_CALLBACK_BATCH; i++) {
-		head = rcu_batch_dequeue(&sp->batch_done);
-		if (!head)
-			break;
-		local_bh_disable();
-		head->func(head);
-		local_bh_enable();
-	}
-}
-
-/*
- * Finished one round of SRCU grace period.  Start another if there are
- * more SRCU callbacks queued, otherwise put SRCU into not-running state.
- */
-static void srcu_reschedule(struct srcu_struct *sp)
-{
-	bool pending = true;
-
-	if (rcu_batch_empty(&sp->batch_done) &&
-	    rcu_batch_empty(&sp->batch_check1) &&
-	    rcu_batch_empty(&sp->batch_check0) &&
-	    rcu_batch_empty(&sp->batch_queue)) {
-		spin_lock_irq(&sp->queue_lock);
-		if (rcu_batch_empty(&sp->batch_done) &&
-		    rcu_batch_empty(&sp->batch_check1) &&
-		    rcu_batch_empty(&sp->batch_check0) &&
-		    rcu_batch_empty(&sp->batch_queue)) {
-			sp->running = false;
-			pending = false;
-		}
-		spin_unlock_irq(&sp->queue_lock);
-	}
-
-	if (pending)
-		schedule_delayed_work(&sp->work, SRCU_INTERVAL);
-}
-
-/*
- * This is the work-queue function that handles SRCU grace periods.
- */
-void process_srcu(struct work_struct *work)
-{
-	struct srcu_struct *sp;
-
-	sp = container_of(work, struct srcu_struct, work.work);
-
-	srcu_collect_new(sp);
-	srcu_advance_batches(sp, 1);
-	srcu_invoke_callbacks(sp);
-	srcu_reschedule(sp);
-}
-EXPORT_SYMBOL_GPL(process_srcu);
-- 
cgit 


From f744812ba94d74f4b7fa20a55e16449d697825fa Mon Sep 17 00:00:00 2001
From: Al Stone <ahs3@redhat.com>
Date: Mon, 7 Oct 2013 23:10:52 +0900
Subject: ARM: dts: Correct typo in use of samsung,pin-drv for exynos5250

Corrects an obvious typo in the Arndale pinctrl descriptions in DT.
The samsung-pinctrl driver uses the correct name.

Signed-off-by: Al Stone <al.stone@linaro.org>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/boot/dts/exynos5250-pinctrl.dtsi | 44 +++++++++++++++----------------
 1 file changed, 22 insertions(+), 22 deletions(-)

diff --git a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
index 724a22f9b1c8..9a49e6804ae1 100644
--- a/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
+++ b/arch/arm/boot/dts/exynos5250-pinctrl.dtsi
@@ -210,21 +210,21 @@
 			samsung,pins = "gpa0-2", "gpa0-3";
 			samsung,pin-function = <2>;
 			samsung,pin-pud = <0>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 
 		i2c2_bus: i2c2-bus {
 			samsung,pins = "gpa0-6", "gpa0-7";
 			samsung,pin-function = <3>;
 			samsung,pin-pud = <3>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 
 		i2c2_hs_bus: i2c2-hs-bus {
 			samsung,pins = "gpa0-6", "gpa0-7";
 			samsung,pin-function = <4>;
 			samsung,pin-pud = <3>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 
 		uart2_data: uart2-data {
@@ -238,21 +238,21 @@
 			samsung,pins = "gpa1-2", "gpa1-3";
 			samsung,pin-function = <2>;
 			samsung,pin-pud = <0>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 
 		i2c3_bus: i2c3-bus {
 			samsung,pins = "gpa1-2", "gpa1-3";
 			samsung,pin-function = <3>;
 			samsung,pin-pud = <3>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 
 		i2c3_hs_bus: i2c3-hs-bus {
 			samsung,pins = "gpa1-2", "gpa1-3";
 			samsung,pin-function = <4>;
 			samsung,pin-pud = <3>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 
 		uart3_data: uart3-data {
@@ -273,14 +273,14 @@
 			samsung,pins = "gpa2-0", "gpa2-1";
 			samsung,pin-function = <3>;
 			samsung,pin-pud = <3>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 
 		i2c5_bus: i2c5-bus {
 			samsung,pins = "gpa2-2", "gpa2-3";
 			samsung,pin-function = <3>;
 			samsung,pin-pud = <3>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 
 		spi1_bus: spi1-bus {
@@ -376,14 +376,14 @@
 			samsung,pins = "gpb3-0", "gpb3-1";
 			samsung,pin-function = <4>;
 			samsung,pin-pud = <3>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 
 		i2c1_hs_bus: i2c1-hs-bus {
 			samsung,pins = "gpb3-2", "gpb3-3";
 			samsung,pin-function = <4>;
 			samsung,pin-pud = <3>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 
 		sd0_clk: sd0-clk {
@@ -551,14 +551,14 @@
 			samsung,pins = "gpd0-2", "gpd0-3";
 			samsung,pin-function = <2>;
 			samsung,pin-pud = <0>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 
 		dp_hpd: dp_hpd {
 			samsung,pins = "gpx0-7";
 			samsung,pin-function = <3>;
 			samsung,pin-pud = <0>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 	};
 
@@ -649,42 +649,42 @@
 				       "gpf1-0", "gpf1-1", "gpf1-2", "gpf1-3";
 			samsung,pin-function = <3>;
 			samsung,pin-pud = <0>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 
 		cam_i2c2_bus: cam-i2c2-bus {
 			samsung,pins = "gpe0-6", "gpe1-0";
 			samsung,pin-function = <4>;
 			samsung,pin-pud = <3>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 
 		cam_spi1_bus: cam-spi1-bus {
 			samsung,pins = "gpe0-4", "gpe0-5", "gpf0-2", "gpf0-3";
 			samsung,pin-function = <4>;
 			samsung,pin-pud = <0>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 
 		cam_i2c1_bus: cam-i2c1-bus {
 			samsung,pins = "gpf0-2", "gpf0-3";
 			samsung,pin-function = <2>;
 			samsung,pin-pud = <3>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 
 		cam_i2c0_bus: cam-i2c0-bus {
 			samsung,pins = "gpf0-0", "gpf0-1";
 			samsung,pin-function = <2>;
 			samsung,pin-pud = <3>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 
 		cam_spi0_bus: cam-spi0-bus {
 			samsung,pins = "gpf1-0", "gpf1-1", "gpf1-2", "gpf1-3";
 			samsung,pin-function = <2>;
 			samsung,pin-pud = <0>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 
 		cam_bayrgb_bus: cam-bayrgb-bus {
@@ -695,7 +695,7 @@
 				       "gpg2-0", "gpg2-1";
 			samsung,pin-function = <2>;
 			samsung,pin-pud = <0>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 
 		cam_port_a: cam-port-a {
@@ -704,7 +704,7 @@
 				       "gph1-4", "gph1-5", "gph1-6", "gph1-7";
 			samsung,pin-function = <2>;
 			samsung,pin-pud = <0>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 	};
 
@@ -756,7 +756,7 @@
 				       "gpv1-4", "gpv1-5", "gpv1-6", "gpv1-7";
 			samsung,pin-function = <2>;
 			samsung,pin-pud = <0>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 
 		c2c_txd: c2c-txd {
@@ -766,7 +766,7 @@
 				       "gpv3-4", "gpv3-5", "gpv3-6", "gpv3-7";
 			samsung,pin-function = <2>;
 			samsung,pin-pud = <0>;
-			samaung,pin-drv = <0>;
+			samsung,pin-drv = <0>;
 		};
 	};
 
-- 
cgit 


From fc017072f06d1d4f3be8fc7dc22bc7d2751493b6 Mon Sep 17 00:00:00 2001
From: Youngmin Nam <youngmin.nam@samsung.com>
Date: Mon, 7 Oct 2013 23:16:18 +0900
Subject: ARM: dts: Fix typo earlyprintk in exynos5440-sd5v1 and ssdk5440
 boards

This patch removes '_' from "early_prink" on Exynos5440 dts
files in according to kernel-parameters document.

Signed-off-by: Youngmin Nam <youngmin.nam@samsung.com>
Reviewed-by: Sachin Kamat <sachin.kamat@linaro.org>
Tested-by: Jungseok Lee <jays.lee@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/boot/dts/exynos5440-sd5v1.dts    | 2 +-
 arch/arm/boot/dts/exynos5440-ssdk5440.dts | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/exynos5440-sd5v1.dts b/arch/arm/boot/dts/exynos5440-sd5v1.dts
index 5b22508050da..777fb1c2c70f 100644
--- a/arch/arm/boot/dts/exynos5440-sd5v1.dts
+++ b/arch/arm/boot/dts/exynos5440-sd5v1.dts
@@ -17,7 +17,7 @@
 	compatible = "samsung,sd5v1", "samsung,exynos5440";
 
 	chosen {
-		bootargs = "root=/dev/sda2 rw rootwait ignore_loglevel early_printk no_console_suspend mem=2048M@0x80000000 mem=6144M@0x100000000 console=ttySAC0,115200";
+		bootargs = "root=/dev/sda2 rw rootwait ignore_loglevel earlyprintk no_console_suspend mem=2048M@0x80000000 mem=6144M@0x100000000 console=ttySAC0,115200";
 	};
 
 	fixed-rate-clocks {
diff --git a/arch/arm/boot/dts/exynos5440-ssdk5440.dts b/arch/arm/boot/dts/exynos5440-ssdk5440.dts
index ede772741f81..a7cb84884cfb 100644
--- a/arch/arm/boot/dts/exynos5440-ssdk5440.dts
+++ b/arch/arm/boot/dts/exynos5440-ssdk5440.dts
@@ -17,7 +17,7 @@
 	compatible = "samsung,ssdk5440", "samsung,exynos5440";
 
 	chosen {
-		bootargs = "root=/dev/sda2 rw rootwait ignore_loglevel early_printk no_console_suspend mem=2048M@0x80000000 mem=6144M@0x100000000 console=ttySAC0,115200";
+		bootargs = "root=/dev/sda2 rw rootwait ignore_loglevel earlyprintk no_console_suspend mem=2048M@0x80000000 mem=6144M@0x100000000 console=ttySAC0,115200";
 	};
 
 	spi_0: spi@D0000 {
-- 
cgit 


From db9f31696a5f2871238cbc1621253107f4fe132a Mon Sep 17 00:00:00 2001
From: Tomasz Figa <t.figa@samsung.com>
Date: Tue, 8 Oct 2013 07:06:18 +0900
Subject: ARM: dts: Work around lack of cpufreq regulator lookup for
 exynos4210-origen and trats boards

Exynos cpufreq drivers does not support device tree based regulator
lookup, so it can get the VDD ARM regulator only by its name. To get
cpufreq working for now, this patch works this around by renaming the
regulator in board dts files to vdd_arm, which is the name expected by
the driver.

This fixes a regression introduced by dropping support of board file
based bootup of Exynos 4210 boards that rendered cpufreq inoperable on
Trats and Origen boards.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/boot/dts/exynos4210-origen.dts | 7 ++++++-
 arch/arm/boot/dts/exynos4210-trats.dts  | 7 ++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/exynos4210-origen.dts b/arch/arm/boot/dts/exynos4210-origen.dts
index 382d8c7e2906..46378fee2a13 100644
--- a/arch/arm/boot/dts/exynos4210-origen.dts
+++ b/arch/arm/boot/dts/exynos4210-origen.dts
@@ -192,7 +192,12 @@
 				};
 
 				buck1_reg: BUCK1 {
-					regulator-name = "VDD_ARM_1.2V";
+					/*
+					* HACK: The real name is VDD_ARM_1.2V,
+					* but exynos-cpufreq does not support
+					* DT-based regulator lookup yet.
+					*/
+					regulator-name = "vdd_arm";
 					regulator-min-microvolt = <950000>;
 					regulator-max-microvolt	= <1350000>;
 					regulator-always-on;
diff --git a/arch/arm/boot/dts/exynos4210-trats.dts b/arch/arm/boot/dts/exynos4210-trats.dts
index 1c164f234bcc..63cc571ca307 100644
--- a/arch/arm/boot/dts/exynos4210-trats.dts
+++ b/arch/arm/boot/dts/exynos4210-trats.dts
@@ -290,7 +290,12 @@
 				};
 
 				varm_breg: BUCK1 {
-				     regulator-name = "VARM_1.2V_C210";
+				     /*
+				      * HACK: The real name is VARM_1.2V_C210,
+				      * but exynos-cpufreq does not support
+				      * DT-based regulator lookup yet.
+				      */
+				     regulator-name = "vdd_arm";
 				     regulator-min-microvolt = <900000>;
 				     regulator-max-microvolt = <1350000>;
 				     regulator-always-on;
-- 
cgit 


From 22c98592094e6c149b05cc13d4d6ec495e6f5879 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Tue, 8 Oct 2013 07:08:55 +0900
Subject: ARM: dts: fix PL330 MDMA1 address in DT for Universal C210 board

Revision 0 of Exynos4210 SoC (used on Universal C210 board) requires
'secure' PL330 MDMA1 address (0x12840000) instead of 'non-secure' one
(0x12850000). Fix it by overriding the default PL330 MDMA1 address in
exynos4210-universal_c210.dts.

This is a Device Tree (DT) version of commit 91280e7 ("ARM: EXYNOS:
PL330 MDMA1 fix for revision 0 of Exynos4210 SOC") and fixes recent
regression caused by conversion to DT-only setup on ARM EXYNOS.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/boot/dts/exynos4210-universal_c210.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/exynos4210-universal_c210.dts b/arch/arm/boot/dts/exynos4210-universal_c210.dts
index 889cdada1ce9..d2e3f5f5916d 100644
--- a/arch/arm/boot/dts/exynos4210-universal_c210.dts
+++ b/arch/arm/boot/dts/exynos4210-universal_c210.dts
@@ -350,3 +350,7 @@
 		status = "okay";
 	};
 };
+
+&mdma1 {
+	reg = <0x12840000 0x1000>;
+};
-- 
cgit 


From 3774929d2ac6213a78068a33660d3402f2334d60 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Wed, 9 Oct 2013 01:48:35 +0200
Subject: MAINTAINERS / ACPICA: Add ACPICA information to MAINTAINERS

ACPICA (ACPI Component Architecture) is an external project that
some ACPI kernel code, including the AML interpreter, is derived
from.  That kernel code is generated automatically out of the
original upstream ACPICA sources and therefore, as a general rule,
all changes to it have to go through the ACPICA upstream.

Add ACPICA information to MAINTAINERS to provide the upstream
ACPICA maintainers contact information and pointers to the original
ACPICA Web site and source code.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 MAINTAINERS | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index e61c2e83fc2b..2cafc0b867ca 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -253,6 +253,20 @@ F:	drivers/pci/*acpi*
 F:	drivers/pci/*/*acpi*
 F:	drivers/pci/*/*/*acpi*
 
+ACPI COMPONENT ARCHITECTURE (ACPICA)
+M:	Robert Moore <robert.moore@intel.com>
+M:	Lv Zheng <lv.zheng@intel.com>
+M:	Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+L:	linux-acpi@vger.kernel.org
+L:	devel@acpica.org
+W:	https://acpica.org/
+W:	https://github.com/acpica/acpica/
+Q:	https://patchwork.kernel.org/project/linux-acpi/list/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
+S:	Supported
+F:	drivers/acpi/acpica/
+F:	include/acpi/
+
 ACPI FAN DRIVER
 M:	Zhang Rui <rui.zhang@intel.com>
 L:	linux-acpi@vger.kernel.org
-- 
cgit 


From 67a29e558b17a923c3a53c348315c572b8ca261a Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Wed, 2 Oct 2013 14:13:11 +0530
Subject: cpufreq: remove invalid comment from __cpufreq_remove_dev()

Some section of kerneldoc comment for __cpufreq_remove_dev() is invalid now.
Remove it.

Suggested-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index eb993d997bef..c4d3d7601e59 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1306,8 +1306,6 @@ static int __cpufreq_remove_dev_finish(struct device *dev,
  * __cpufreq_remove_dev - remove a CPU device
  *
  * Removes the cpufreq interface for a CPU device.
- * Caller should already have policy_rwsem in write mode for this CPU.
- * This routine frees the rwsem before returning.
  */
 static inline int __cpufreq_remove_dev(struct device *dev,
 				       struct subsys_interface *sif,
-- 
cgit 


From bbdd04ab1f375ef46a0e2d98de439863d35e4d3e Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Wed, 2 Oct 2013 14:13:12 +0530
Subject: cpufreq: Remove extra blank line

We don't need a blank line just at start of a block, lets remove it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index c4d3d7601e59..c71a87989bbf 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1201,7 +1201,6 @@ static int __cpufreq_remove_dev_prepare(struct device *dev,
 		if (!frozen)
 			sysfs_remove_link(&dev->kobj, "cpufreq");
 	} else if (cpus > 1) {
-
 		new_cpu = cpufreq_nominate_new_policy_cpu(policy, cpu, frozen);
 		if (new_cpu >= 0) {
 			update_policy_cpu(policy, new_cpu);
-- 
cgit 


From 75949c9a1fe0fd07983788449059337edac2b9f6 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Wed, 2 Oct 2013 14:13:13 +0530
Subject: cpufreq: don't break string in print statements

As a rule its better not to break string (quoted inside "") in a
print statement even if it crosses 80 column boundary as that may
introduce bugs and so this patch rewrites one of the print statements..

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index c71a87989bbf..0255c081b4ee 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1206,8 +1206,8 @@ static int __cpufreq_remove_dev_prepare(struct device *dev,
 			update_policy_cpu(policy, new_cpu);
 
 			if (!frozen) {
-				pr_debug("%s: policy Kobject moved to cpu: %d "
-					 "from: %d\n",__func__, new_cpu, cpu);
+				pr_debug("%s: policy Kobject moved to cpu: %d from: %d\n",
+						__func__, new_cpu, cpu);
 			}
 		}
 	}
-- 
cgit 


From 27a862e98341226a50835f29aa26ffa528215ecc Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Wed, 2 Oct 2013 14:13:14 +0530
Subject: cpufreq: remove __cpufreq_remove_dev()

Nobody except cpufreq_remove_dev() calls __cpufreq_remove_dev() and
so we don't need two separate routines here. Merge code from
__cpufreq_remove_dev() into cpufreq_remove_dev() and get rid of
__cpufreq_remove_dev().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq.c | 26 ++++++++------------------
 1 file changed, 8 insertions(+), 18 deletions(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 0255c081b4ee..b04a5d6f13df 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1302,34 +1302,24 @@ static int __cpufreq_remove_dev_finish(struct device *dev,
 }
 
 /**
- * __cpufreq_remove_dev - remove a CPU device
+ * cpufreq_remove_dev - remove a CPU device
  *
  * Removes the cpufreq interface for a CPU device.
  */
-static inline int __cpufreq_remove_dev(struct device *dev,
-				       struct subsys_interface *sif,
-				       bool frozen)
-{
-	int ret;
-
-	ret = __cpufreq_remove_dev_prepare(dev, sif, frozen);
-
-	if (!ret)
-		ret = __cpufreq_remove_dev_finish(dev, sif, frozen);
-
-	return ret;
-}
-
 static int cpufreq_remove_dev(struct device *dev, struct subsys_interface *sif)
 {
 	unsigned int cpu = dev->id;
-	int retval;
+	int ret;
 
 	if (cpu_is_offline(cpu))
 		return 0;
 
-	retval = __cpufreq_remove_dev(dev, sif, false);
-	return retval;
+	ret = __cpufreq_remove_dev_prepare(dev, sif, false);
+
+	if (!ret)
+		ret = __cpufreq_remove_dev_finish(dev, sif, false);
+
+	return ret;
 }
 
 static void handle_update(struct work_struct *work)
-- 
cgit 


From 77db50c4eb1991d6e88254390ec368e1d23a8fa5 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Wed, 2 Oct 2013 14:13:15 +0530
Subject: cpufreq: Optimize cpufreq_frequency_table_verify()

cpufreq_frequency_table_verify() is rewritten here to make it more logical
and efficient.
 - merge multiple lines for variable declarations together.
 - quit early if any frequency between min/max is found.
 - don't call cpufreq_verify_within_limits() in case any valid freq is
   found as it is of no use.
 - rename the count variable as found and change its type to boolean.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/freq_table.c | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/drivers/cpufreq/freq_table.c b/drivers/cpufreq/freq_table.c
index 11f6fa92a58d..10f3cfb6b513 100644
--- a/drivers/cpufreq/freq_table.c
+++ b/drivers/cpufreq/freq_table.c
@@ -54,9 +54,8 @@ EXPORT_SYMBOL_GPL(cpufreq_frequency_table_cpuinfo);
 int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
 				   struct cpufreq_frequency_table *table)
 {
-	unsigned int next_larger = ~0;
-	unsigned int i;
-	unsigned int count = 0;
+	unsigned int next_larger = ~0, freq, i = 0;
+	bool found = false;
 
 	pr_debug("request for verification of policy (%u - %u kHz) for cpu %u\n",
 					policy->min, policy->max, policy->cpu);
@@ -64,21 +63,23 @@ int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
 	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
 				     policy->cpuinfo.max_freq);
 
-	for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++) {
-		unsigned int freq = table[i].frequency;
+	for (; freq = table[i].frequency, freq != CPUFREQ_TABLE_END; i++) {
 		if (freq == CPUFREQ_ENTRY_INVALID)
 			continue;
-		if ((freq >= policy->min) && (freq <= policy->max))
-			count++;
-		else if ((next_larger > freq) && (freq > policy->max))
+		if ((freq >= policy->min) && (freq <= policy->max)) {
+			found = true;
+			break;
+		}
+
+		if ((next_larger > freq) && (freq > policy->max))
 			next_larger = freq;
 	}
 
-	if (!count)
+	if (!found) {
 		policy->max = next_larger;
-
-	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
-				     policy->cpuinfo.max_freq);
+		cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
+				policy->cpuinfo.max_freq);
+	}
 
 	pr_debug("verification lead to (%u - %u kHz) for cpu %u\n",
 				policy->min, policy->max, policy->cpu);
-- 
cgit 


From 037ce8397d23b2f84ccfb879cf4b43277b0454e3 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Wed, 2 Oct 2013 14:13:16 +0530
Subject: cpufreq: rename __cpufreq_set_policy() as cpufreq_set_policy()

Earlier there used to be two functions named __cpufreq_set_policy() and
cpufreq_set_policy(), but now we only have a single routine lets name it
cpufreq_set_policy() instead of __cpufreq_set_policy().

This also removes some invalid comments or fixes some incorrect comments.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq.c | 22 +++++++++-------------
 1 file changed, 9 insertions(+), 13 deletions(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index b04a5d6f13df..3a811df43e14 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -412,7 +412,7 @@ show_one(scaling_min_freq, min);
 show_one(scaling_max_freq, max);
 show_one(scaling_cur_freq, cur);
 
-static int __cpufreq_set_policy(struct cpufreq_policy *policy,
+static int cpufreq_set_policy(struct cpufreq_policy *policy,
 				struct cpufreq_policy *new_policy);
 
 /**
@@ -433,7 +433,7 @@ static ssize_t store_##file_name					\
 	if (ret != 1)							\
 		return -EINVAL;						\
 									\
-	ret = __cpufreq_set_policy(policy, &new_policy);		\
+	ret = cpufreq_set_policy(policy, &new_policy);		\
 	policy->user_policy.object = policy->object;			\
 									\
 	return ret ? ret : count;					\
@@ -491,11 +491,7 @@ static ssize_t store_scaling_governor(struct cpufreq_policy *policy,
 						&new_policy.governor))
 		return -EINVAL;
 
-	/*
-	 * Do not use cpufreq_set_policy here or the user_policy.max
-	 * will be wrongly overridden
-	 */
-	ret = __cpufreq_set_policy(policy, &new_policy);
+	ret = cpufreq_set_policy(policy, &new_policy);
 
 	policy->user_policy.policy = policy->policy;
 	policy->user_policy.governor = policy->governor;
@@ -837,11 +833,11 @@ static void cpufreq_init_policy(struct cpufreq_policy *policy)
 	int ret = 0;
 
 	memcpy(&new_policy, policy, sizeof(*policy));
-	/* assure that the starting sequence is run in __cpufreq_set_policy */
+	/* assure that the starting sequence is run in cpufreq_set_policy */
 	policy->governor = NULL;
 
 	/* set default policy */
-	ret = __cpufreq_set_policy(policy, &new_policy);
+	ret = cpufreq_set_policy(policy, &new_policy);
 	policy->user_policy.policy = policy->policy;
 	policy->user_policy.governor = policy->governor;
 
@@ -1846,10 +1842,10 @@ int cpufreq_get_policy(struct cpufreq_policy *policy, unsigned int cpu)
 EXPORT_SYMBOL(cpufreq_get_policy);
 
 /*
- * data   : current policy.
- * policy : policy to be set.
+ * policy : current policy.
+ * new_policy: policy to be set.
  */
-static int __cpufreq_set_policy(struct cpufreq_policy *policy,
+static int cpufreq_set_policy(struct cpufreq_policy *policy,
 				struct cpufreq_policy *new_policy)
 {
 	int ret = 0, failed = 1;
@@ -1995,7 +1991,7 @@ int cpufreq_update_policy(unsigned int cpu)
 		}
 	}
 
-	ret = __cpufreq_set_policy(policy, &new_policy);
+	ret = cpufreq_set_policy(policy, &new_policy);
 
 	unlock_policy_rwsem_write(cpu);
 
-- 
cgit 


From 6461f018e7ad08863b55c386bf694683e4e2e86e Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Wed, 2 Oct 2013 14:13:17 +0530
Subject: cpufreq: rewrite cpufreq_driver->flags using shift operator

Currently cpufreq_driver's flags are defined directly using 0x1, 0x2, 0x4, 0x8,
etc.. As the list grows it becomes less readable..

Use bitwise shift operator << to generate these numbers for respective
positions.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/linux/cpufreq.h | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 6b199ed7aa58..00c80a5372db 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -211,13 +211,14 @@ struct cpufreq_driver {
 };
 
 /* flags */
-#define CPUFREQ_STICKY		0x01	/* the driver isn't removed even if
-					 * all ->init() calls failed */
-#define CPUFREQ_CONST_LOOPS	0x02	/* loops_per_jiffy or other kernel
-					 * "constants" aren't affected by
-					 * frequency transitions */
-#define CPUFREQ_PM_NO_WARN	0x04	/* don't warn on suspend/resume speed
-					 * mismatches */
+#define CPUFREQ_STICKY		(1 << 0)	/* driver isn't removed even if
+						   all ->init() calls failed */
+#define CPUFREQ_CONST_LOOPS	(1 << 1)	/* loops_per_jiffy or other
+						   kernel "constants" aren't
+						   affected by frequency
+						   transitions */
+#define CPUFREQ_PM_NO_WARN	(1 << 2)	/* don't warn on suspend/resume
+						   speed mismatches */
 
 int cpufreq_register_driver(struct cpufreq_driver *driver_data);
 int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);
-- 
cgit 


From 0b981e70748861a3e10ea2e2a689bdcee3e15085 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Wed, 2 Oct 2013 14:13:18 +0530
Subject: cpufreq: use cpufreq_driver->flags to mark
 CPUFREQ_HAVE_GOVERNOR_PER_POLICY

Use cpufreq_driver->flags to mark CPUFREQ_HAVE_GOVERNOR_PER_POLICY instead
of a separate field within cpufreq_driver. This will save some bytes of
memory.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/arm_big_little.c   |  4 ++--
 drivers/cpufreq/cpufreq.c          |  2 +-
 drivers/cpufreq/cpufreq_governor.h |  5 ++++-
 include/linux/cpufreq.h            | 15 ++++++++-------
 4 files changed, 15 insertions(+), 11 deletions(-)

diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index 9acfb82c1cfb..2c7c13494825 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -213,13 +213,13 @@ static struct freq_attr *bL_cpufreq_attr[] = {
 
 static struct cpufreq_driver bL_cpufreq_driver = {
 	.name			= "arm-big-little",
-	.flags			= CPUFREQ_STICKY,
+	.flags			= CPUFREQ_STICKY |
+					CPUFREQ_HAVE_GOVERNOR_PER_POLICY,
 	.verify			= bL_cpufreq_verify_policy,
 	.target			= bL_cpufreq_set_target,
 	.get			= bL_cpufreq_get,
 	.init			= bL_cpufreq_init,
 	.exit			= bL_cpufreq_exit,
-	.have_governor_per_policy = true,
 	.attr			= bL_cpufreq_attr,
 };
 
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 3a811df43e14..fc9110c9f10d 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -133,7 +133,7 @@ static DEFINE_MUTEX(cpufreq_governor_mutex);
 
 bool have_governor_per_policy(void)
 {
-	return cpufreq_driver->have_governor_per_policy;
+	return !!(cpufreq_driver->flags & CPUFREQ_HAVE_GOVERNOR_PER_POLICY);
 }
 EXPORT_SYMBOL_GPL(have_governor_per_policy);
 
diff --git a/drivers/cpufreq/cpufreq_governor.h b/drivers/cpufreq/cpufreq_governor.h
index 88cd39f7b0e9..b5f2b8618949 100644
--- a/drivers/cpufreq/cpufreq_governor.h
+++ b/drivers/cpufreq/cpufreq_governor.h
@@ -191,7 +191,10 @@ struct common_dbs_data {
 	struct attribute_group *attr_group_gov_sys; /* one governor - system */
 	struct attribute_group *attr_group_gov_pol; /* one governor - policy */
 
-	/* Common data for platforms that don't set have_governor_per_policy */
+	/*
+	 * Common data for platforms that don't set
+	 * CPUFREQ_HAVE_GOVERNOR_PER_POLICY
+	 */
 	struct dbs_data *gdbs_data;
 
 	struct cpu_dbs_common_info *(*get_cpu_cdbs)(int cpu);
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 00c80a5372db..24b84f7e7f8d 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -180,13 +180,6 @@ __ATTR(_name, 0644, show_##_name, store_##_name)
 struct cpufreq_driver {
 	char			name[CPUFREQ_NAME_LEN];
 	u8			flags;
-	/*
-	 * This should be set by platforms having multiple clock-domains, i.e.
-	 * supporting multiple policies. With this sysfs directories of governor
-	 * would be created in cpu/cpu<num>/cpufreq/ directory and so they can
-	 * use the same governor with different tunables for different clusters.
-	 */
-	bool			have_governor_per_policy;
 
 	/* needed by all drivers */
 	int	(*init)		(struct cpufreq_policy *policy);
@@ -220,6 +213,14 @@ struct cpufreq_driver {
 #define CPUFREQ_PM_NO_WARN	(1 << 2)	/* don't warn on suspend/resume
 						   speed mismatches */
 
+/*
+ * This should be set by platforms having multiple clock-domains, i.e.
+ * supporting multiple policies. With this sysfs directories of governor would
+ * be created in cpu/cpu<num>/cpufreq/ directory and so they can use the same
+ * governor with different tunables for different clusters.
+ */
+#define CPUFREQ_HAVE_GOVERNOR_PER_POLICY (1 << 3)
+
 int cpufreq_register_driver(struct cpufreq_driver *driver_data);
 int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);
 
-- 
cgit 


From be49e3465f222b4b796be8a21d14afbfd8f5d20f Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Wed, 2 Oct 2013 14:13:19 +0530
Subject: cpufreq: add new routine cpufreq_verify_within_cpu_limits()

Most of the users of cpufreq_verify_within_limits() calls it for
limiting with min/max from policy->cpuinfo. We can make that code
simple by introducing another routine which will do this for them
automatically.

This patch adds another routine cpufreq_verify_within_cpu_limits()
and updates others to use it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq-nforce2.c    | 4 +---
 drivers/cpufreq/davinci-cpufreq.c    | 4 +---
 drivers/cpufreq/freq_table.c         | 6 ++----
 drivers/cpufreq/integrator-cpufreq.c | 9 ++-------
 drivers/cpufreq/intel_pstate.c       | 4 +---
 drivers/cpufreq/longrun.c            | 4 +---
 drivers/cpufreq/pcc-cpufreq.c        | 3 +--
 drivers/cpufreq/sh-cpufreq.c         | 7 ++-----
 drivers/cpufreq/unicore2-cpufreq.c   | 4 +---
 include/linux/cpufreq.h              | 7 +++++++
 10 files changed, 19 insertions(+), 33 deletions(-)

diff --git a/drivers/cpufreq/cpufreq-nforce2.c b/drivers/cpufreq/cpufreq-nforce2.c
index b83d45f68574..56c964c16a66 100644
--- a/drivers/cpufreq/cpufreq-nforce2.c
+++ b/drivers/cpufreq/cpufreq-nforce2.c
@@ -303,9 +303,7 @@ static int nforce2_verify(struct cpufreq_policy *policy)
 	if (policy->min < (fsb_pol_max * fid * 100))
 		policy->max = (fsb_pol_max + 1) * fid * 100;
 
-	cpufreq_verify_within_limits(policy,
-				     policy->cpuinfo.min_freq,
-				     policy->cpuinfo.max_freq);
+	cpufreq_verify_within_cpu_limits(policy);
 	return 0;
 }
 
diff --git a/drivers/cpufreq/davinci-cpufreq.c b/drivers/cpufreq/davinci-cpufreq.c
index f67196e21fc9..ba03e6f91d47 100644
--- a/drivers/cpufreq/davinci-cpufreq.c
+++ b/drivers/cpufreq/davinci-cpufreq.c
@@ -50,9 +50,7 @@ static int davinci_verify_speed(struct cpufreq_policy *policy)
 	if (policy->cpu)
 		return -EINVAL;
 
-	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
-				     policy->cpuinfo.max_freq);
-
+	cpufreq_verify_within_cpu_limits(policy);
 	policy->min = clk_round_rate(armclk, policy->min * 1000) / 1000;
 	policy->max = clk_round_rate(armclk, policy->max * 1000) / 1000;
 	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
diff --git a/drivers/cpufreq/freq_table.c b/drivers/cpufreq/freq_table.c
index 10f3cfb6b513..b9336edb9bd6 100644
--- a/drivers/cpufreq/freq_table.c
+++ b/drivers/cpufreq/freq_table.c
@@ -60,8 +60,7 @@ int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
 	pr_debug("request for verification of policy (%u - %u kHz) for cpu %u\n",
 					policy->min, policy->max, policy->cpu);
 
-	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
-				     policy->cpuinfo.max_freq);
+	cpufreq_verify_within_cpu_limits(policy);
 
 	for (; freq = table[i].frequency, freq != CPUFREQ_TABLE_END; i++) {
 		if (freq == CPUFREQ_ENTRY_INVALID)
@@ -77,8 +76,7 @@ int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
 
 	if (!found) {
 		policy->max = next_larger;
-		cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
-				policy->cpuinfo.max_freq);
+		cpufreq_verify_within_cpu_limits(policy);
 	}
 
 	pr_debug("verification lead to (%u - %u kHz) for cpu %u\n",
diff --git a/drivers/cpufreq/integrator-cpufreq.c b/drivers/cpufreq/integrator-cpufreq.c
index f7c99df0880b..8152a9bb7e2c 100644
--- a/drivers/cpufreq/integrator-cpufreq.c
+++ b/drivers/cpufreq/integrator-cpufreq.c
@@ -59,9 +59,7 @@ static int integrator_verify_policy(struct cpufreq_policy *policy)
 {
 	struct icst_vco vco;
 
-	cpufreq_verify_within_limits(policy, 
-				     policy->cpuinfo.min_freq, 
-				     policy->cpuinfo.max_freq);
+	cpufreq_verify_within_cpu_limits(policy);
 
 	vco = icst_hz_to_vco(&cclk_params, policy->max * 1000);
 	policy->max = icst_hz(&cclk_params, vco) / 1000;
@@ -69,10 +67,7 @@ static int integrator_verify_policy(struct cpufreq_policy *policy)
 	vco = icst_hz_to_vco(&cclk_params, policy->min * 1000);
 	policy->min = icst_hz(&cclk_params, vco) / 1000;
 
-	cpufreq_verify_within_limits(policy, 
-				     policy->cpuinfo.min_freq, 
-				     policy->cpuinfo.max_freq);
-
+	cpufreq_verify_within_cpu_limits(policy);
 	return 0;
 }
 
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 9733f29ed148..a02bd77cbfe8 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -611,9 +611,7 @@ static int intel_pstate_set_policy(struct cpufreq_policy *policy)
 
 static int intel_pstate_verify_policy(struct cpufreq_policy *policy)
 {
-	cpufreq_verify_within_limits(policy,
-				policy->cpuinfo.min_freq,
-				policy->cpuinfo.max_freq);
+	cpufreq_verify_within_cpu_limits(policy);
 
 	if ((policy->policy != CPUFREQ_POLICY_POWERSAVE) &&
 		(policy->policy != CPUFREQ_POLICY_PERFORMANCE))
diff --git a/drivers/cpufreq/longrun.c b/drivers/cpufreq/longrun.c
index 5aa031612d53..074971b12635 100644
--- a/drivers/cpufreq/longrun.c
+++ b/drivers/cpufreq/longrun.c
@@ -129,9 +129,7 @@ static int longrun_verify_policy(struct cpufreq_policy *policy)
 		return -EINVAL;
 
 	policy->cpu = 0;
-	cpufreq_verify_within_limits(policy,
-		policy->cpuinfo.min_freq,
-		policy->cpuinfo.max_freq);
+	cpufreq_verify_within_cpu_limits(policy);
 
 	if ((policy->policy != CPUFREQ_POLICY_POWERSAVE) &&
 	    (policy->policy != CPUFREQ_POLICY_PERFORMANCE))
diff --git a/drivers/cpufreq/pcc-cpufreq.c b/drivers/cpufreq/pcc-cpufreq.c
index d81c4e5ea0ad..78787e965e0b 100644
--- a/drivers/cpufreq/pcc-cpufreq.c
+++ b/drivers/cpufreq/pcc-cpufreq.c
@@ -111,8 +111,7 @@ static struct pcc_cpu __percpu *pcc_cpu_info;
 
 static int pcc_cpufreq_verify(struct cpufreq_policy *policy)
 {
-	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
-				     policy->cpuinfo.max_freq);
+	cpufreq_verify_within_cpu_limits(policy);
 	return 0;
 }
 
diff --git a/drivers/cpufreq/sh-cpufreq.c b/drivers/cpufreq/sh-cpufreq.c
index 1362e8894ee1..f1fb944d714c 100644
--- a/drivers/cpufreq/sh-cpufreq.c
+++ b/drivers/cpufreq/sh-cpufreq.c
@@ -87,15 +87,12 @@ static int sh_cpufreq_verify(struct cpufreq_policy *policy)
 	if (freq_table)
 		return cpufreq_frequency_table_verify(policy, freq_table);
 
-	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
-				     policy->cpuinfo.max_freq);
+	cpufreq_verify_within_cpu_limits(policy);
 
 	policy->min = (clk_round_rate(cpuclk, 1) + 500) / 1000;
 	policy->max = (clk_round_rate(cpuclk, ~0UL) + 500) / 1000;
 
-	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
-				     policy->cpuinfo.max_freq);
-
+	cpufreq_verify_within_cpu_limits(policy);
 	return 0;
 }
 
diff --git a/drivers/cpufreq/unicore2-cpufreq.c b/drivers/cpufreq/unicore2-cpufreq.c
index b225f04d8ae5..14e6d3106355 100644
--- a/drivers/cpufreq/unicore2-cpufreq.c
+++ b/drivers/cpufreq/unicore2-cpufreq.c
@@ -29,9 +29,7 @@ static int ucv2_verify_speed(struct cpufreq_policy *policy)
 	if (policy->cpu)
 		return -EINVAL;
 
-	cpufreq_verify_within_limits(policy,
-			policy->cpuinfo.min_freq, policy->cpuinfo.max_freq);
-
+	cpufreq_verify_within_cpu_limits(policy);
 	return 0;
 }
 
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 24b84f7e7f8d..c7495915932d 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -242,6 +242,13 @@ static inline void cpufreq_verify_within_limits(struct cpufreq_policy *policy,
 	return;
 }
 
+static inline void
+cpufreq_verify_within_cpu_limits(struct cpufreq_policy *policy)
+{
+	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
+			policy->cpuinfo.max_freq);
+}
+
 /*********************************************************************
  *                     CPUFREQ NOTIFIER INTERFACE                    *
  *********************************************************************/
-- 
cgit 


From 184345129c53e76069c209f9912ed7c457eceb31 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:27:55 +0530
Subject: cpufreq: define generic .attr, .exit() and .verify() routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch introduces generic .attr, .exit() and .verify() cpufreq drivers.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/freq_table.c | 20 ++++++++++++++++++++
 include/linux/cpufreq.h      |  8 ++++++++
 2 files changed, 28 insertions(+)

diff --git a/drivers/cpufreq/freq_table.c b/drivers/cpufreq/freq_table.c
index b9336edb9bd6..3458d27f63b4 100644
--- a/drivers/cpufreq/freq_table.c
+++ b/drivers/cpufreq/freq_table.c
@@ -86,6 +86,20 @@ int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
 }
 EXPORT_SYMBOL_GPL(cpufreq_frequency_table_verify);
 
+/*
+ * Generic routine to verify policy & frequency table, requires driver to call
+ * cpufreq_frequency_table_get_attr() prior to it.
+ */
+int cpufreq_generic_frequency_table_verify(struct cpufreq_policy *policy)
+{
+	struct cpufreq_frequency_table *table =
+		cpufreq_frequency_get_table(policy->cpu);
+	if (!table)
+		return -ENODEV;
+
+	return cpufreq_frequency_table_verify(policy, table);
+}
+EXPORT_SYMBOL_GPL(cpufreq_generic_frequency_table_verify);
 
 int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
 				   struct cpufreq_frequency_table *table,
@@ -199,6 +213,12 @@ struct freq_attr cpufreq_freq_attr_scaling_available_freqs = {
 };
 EXPORT_SYMBOL_GPL(cpufreq_freq_attr_scaling_available_freqs);
 
+struct freq_attr *cpufreq_generic_attr[] = {
+	&cpufreq_freq_attr_scaling_available_freqs,
+	NULL,
+};
+EXPORT_SYMBOL_GPL(cpufreq_generic_attr);
+
 /*
  * if you use these, you must assure that the frequency table is valid
  * all the time between get_attr and put_attr!
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index c7495915932d..36ccd0bf1304 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -401,6 +401,7 @@ int cpufreq_frequency_table_cpuinfo(struct cpufreq_policy *policy,
 
 int cpufreq_frequency_table_verify(struct cpufreq_policy *policy,
 				   struct cpufreq_frequency_table *table);
+int cpufreq_generic_frequency_table_verify(struct cpufreq_policy *policy);
 
 int cpufreq_frequency_table_target(struct cpufreq_policy *policy,
 				   struct cpufreq_frequency_table *table,
@@ -416,10 +417,17 @@ struct cpufreq_frequency_table *cpufreq_frequency_get_table(unsigned int cpu);
 
 /* the following are really really optional */
 extern struct freq_attr cpufreq_freq_attr_scaling_available_freqs;
+extern struct freq_attr *cpufreq_generic_attr[];
 void cpufreq_frequency_table_get_attr(struct cpufreq_frequency_table *table,
 				      unsigned int cpu);
 void cpufreq_frequency_table_put_attr(unsigned int cpu);
 int cpufreq_table_validate_and_show(struct cpufreq_policy *policy,
 				      struct cpufreq_frequency_table *table);
 
+static inline int cpufreq_generic_exit(struct cpufreq_policy *policy)
+{
+	cpufreq_frequency_table_put_attr(policy->cpu);
+	return 0;
+}
+
 #endif /* _LINUX_CPUFREQ_H */
-- 
cgit 


From db9be2194a829b26d66a2a25e590d2fc39179ba3 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:27:56 +0530
Subject: cpufreq: acpi: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses the generic verify routine in the ACPI driver.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/acpi-cpufreq.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index d9932111a681..94a5a1d1eec9 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -516,15 +516,6 @@ out:
 	return result;
 }
 
-static int acpi_cpufreq_verify(struct cpufreq_policy *policy)
-{
-	struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu);
-
-	pr_debug("acpi_cpufreq_verify\n");
-
-	return cpufreq_frequency_table_verify(policy, data->freq_table);
-}
-
 static unsigned long
 acpi_cpufreq_guess_freq(struct acpi_cpufreq_data *data, unsigned int cpu)
 {
@@ -927,7 +918,7 @@ static struct freq_attr *acpi_cpufreq_attr[] = {
 };
 
 static struct cpufreq_driver acpi_cpufreq_driver = {
-	.verify		= acpi_cpufreq_verify,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= acpi_cpufreq_target,
 	.bios_limit	= acpi_processor_get_bios_limit,
 	.init		= acpi_cpufreq_cpu_init,
-- 
cgit 


From 3c75a1503f2c5ca91279436b1f573002c869ef06 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:27:57 +0530
Subject: cpufreq: arm_big_little: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the arm_big_little driver.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/arm_big_little.c | 18 ++----------------
 1 file changed, 2 insertions(+), 16 deletions(-)

diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index 2c7c13494825..132c966471c3 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -47,14 +47,6 @@ static unsigned int bL_cpufreq_get(unsigned int cpu)
 	return clk_get_rate(clk[cur_cluster]) / 1000;
 }
 
-/* Validate policy frequency range */
-static int bL_cpufreq_verify_policy(struct cpufreq_policy *policy)
-{
-	u32 cur_cluster = cpu_to_cluster(policy->cpu);
-
-	return cpufreq_frequency_table_verify(policy, freq_table[cur_cluster]);
-}
-
 /* Set clock frequency */
 static int bL_cpufreq_set_target(struct cpufreq_policy *policy,
 		unsigned int target_freq, unsigned int relation)
@@ -205,22 +197,16 @@ static int bL_cpufreq_exit(struct cpufreq_policy *policy)
 	return 0;
 }
 
-/* Export freq_table to sysfs */
-static struct freq_attr *bL_cpufreq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver bL_cpufreq_driver = {
 	.name			= "arm-big-little",
 	.flags			= CPUFREQ_STICKY |
 					CPUFREQ_HAVE_GOVERNOR_PER_POLICY,
-	.verify			= bL_cpufreq_verify_policy,
+	.verify			= cpufreq_generic_frequency_table_verify,
 	.target			= bL_cpufreq_set_target,
 	.get			= bL_cpufreq_get,
 	.init			= bL_cpufreq_init,
 	.exit			= bL_cpufreq_exit,
-	.attr			= bL_cpufreq_attr,
+	.attr			= cpufreq_generic_attr,
 };
 
 int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops)
-- 
cgit 


From 5ae68f4737cec20505f3bb0a99bcb2efcfd66792 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:27:58 +0530
Subject: cpufreq: at32ap: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the at32ap driver.

Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/at32ap-cpufreq.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/cpufreq/at32ap-cpufreq.c b/drivers/cpufreq/at32ap-cpufreq.c
index 1d19fa59bc2c..788f7e77565d 100644
--- a/drivers/cpufreq/at32ap-cpufreq.c
+++ b/drivers/cpufreq/at32ap-cpufreq.c
@@ -24,16 +24,6 @@
 static struct clk *cpuclk;
 static struct cpufreq_frequency_table *freq_table;
 
-static int at32_verify_speed(struct cpufreq_policy *policy)
-{
-	if (policy->cpu != 0)
-		return -EINVAL;
-
-	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
-			policy->cpuinfo.max_freq);
-	return 0;
-}
-
 static unsigned int at32_get_speed(unsigned int cpu)
 {
 	/* No SMP support */
@@ -152,7 +142,7 @@ out_err:
 static struct cpufreq_driver at32_driver = {
 	.name		= "at32ap",
 	.init		= at32_cpufreq_driver_init,
-	.verify		= at32_verify_speed,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= at32_set_target,
 	.get		= at32_get_speed,
 	.flags		= CPUFREQ_STICKY,
-- 
cgit 


From 00ff424caa68f0d880e3593554ed0aefb52a84a3 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:27:59 +0530
Subject: cpufreq: blackfin: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the blackfin driver.

Cc: Steven Miao <realmz6@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/blackfin-cpufreq.c | 23 +++--------------------
 1 file changed, 3 insertions(+), 20 deletions(-)

diff --git a/drivers/cpufreq/blackfin-cpufreq.c b/drivers/cpufreq/blackfin-cpufreq.c
index 0e76c09552b9..48888cf23bba 100644
--- a/drivers/cpufreq/blackfin-cpufreq.c
+++ b/drivers/cpufreq/blackfin-cpufreq.c
@@ -191,11 +191,6 @@ static int bfin_target(struct cpufreq_policy *policy,
 	return ret;
 }
 
-static int bfin_verify_speed(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, bfin_freq_table);
-}
-
 static int __bfin_cpu_init(struct cpufreq_policy *policy)
 {
 
@@ -213,26 +208,14 @@ static int __bfin_cpu_init(struct cpufreq_policy *policy)
 	return cpufreq_table_validate_and_show(policy, bfin_freq_table);
 }
 
-static int __bfin_cpu_exit(struct cpufreq_policy *policy)
-{
-
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
-}
-
-static struct freq_attr *bfin_freq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver bfin_driver = {
-	.verify = bfin_verify_speed,
+	.verify = cpufreq_generic_frequency_table_verify,
 	.target = bfin_target,
 	.get = bfin_getfreq_khz,
 	.init = __bfin_cpu_init,
-	.exit = __bfin_cpu_exit,
+	.exit = cpufreq_generic_exit,
 	.name = "bfin cpufreq",
-	.attr = bfin_freq_attr,
+	.attr = cpufreq_generic_attr,
 };
 
 static int __init bfin_cpu_init(void)
-- 
cgit 


From f793d79f08d1b44fcad60869fdadd556da780304 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:00 +0530
Subject: cpufreq: cpufreq-cpu0: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the cpufreq-cpu0 driver.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq-cpu0.c | 23 +++--------------------
 1 file changed, 3 insertions(+), 20 deletions(-)

diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
index fd031ec33fcc..c4a7514b1e15 100644
--- a/drivers/cpufreq/cpufreq-cpu0.c
+++ b/drivers/cpufreq/cpufreq-cpu0.c
@@ -30,11 +30,6 @@ static struct clk *cpu_clk;
 static struct regulator *cpu_reg;
 static struct cpufreq_frequency_table *freq_table;
 
-static int cpu0_verify_speed(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, freq_table);
-}
-
 static unsigned int cpu0_get_speed(unsigned int cpu)
 {
 	return clk_get_rate(cpu_clk) / 1000;
@@ -148,27 +143,15 @@ static int cpu0_cpufreq_init(struct cpufreq_policy *policy)
 	return 0;
 }
 
-static int cpu0_cpufreq_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-
-	return 0;
-}
-
-static struct freq_attr *cpu0_cpufreq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver cpu0_cpufreq_driver = {
 	.flags = CPUFREQ_STICKY,
-	.verify = cpu0_verify_speed,
+	.verify = cpufreq_generic_frequency_table_verify,
 	.target = cpu0_set_target,
 	.get = cpu0_get_speed,
 	.init = cpu0_cpufreq_init,
-	.exit = cpu0_cpufreq_exit,
+	.exit = cpufreq_generic_exit,
 	.name = "generic_cpu0",
-	.attr = cpu0_cpufreq_attr,
+	.attr = cpufreq_generic_attr,
 };
 
 static int cpu0_cpufreq_probe(struct platform_device *pdev)
-- 
cgit 


From 361db10f61b1d113eadd1b7b1db5f16f63c4eb49 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:01 +0530
Subject: cpufreq: cris: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the cris driver.

Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cris-artpec3-cpufreq.c | 23 +++--------------------
 drivers/cpufreq/cris-etraxfs-cpufreq.c | 22 +++-------------------
 2 files changed, 6 insertions(+), 39 deletions(-)

diff --git a/drivers/cpufreq/cris-artpec3-cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c
index 444fd96ad3a5..d26f4e45dabd 100644
--- a/drivers/cpufreq/cris-artpec3-cpufreq.c
+++ b/drivers/cpufreq/cris-artpec3-cpufreq.c
@@ -54,11 +54,6 @@ static void cris_freq_set_cpu_state(struct cpufreq_policy *policy,
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
 };
 
-static int cris_freq_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, &cris_freq_table[0]);
-}
-
 static int cris_freq_target(struct cpufreq_policy *policy,
 			    unsigned int target_freq,
 			    unsigned int relation)
@@ -84,26 +79,14 @@ static int cris_freq_cpu_init(struct cpufreq_policy *policy)
 }
 
 
-static int cris_freq_cpu_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
-}
-
-
-static struct freq_attr *cris_freq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver cris_freq_driver = {
 	.get	= cris_freq_get_cpu_frequency,
-	.verify	= cris_freq_verify,
+	.verify	= cpufreq_generic_frequency_table_verify,
 	.target	= cris_freq_target,
 	.init	= cris_freq_cpu_init,
-	.exit	= cris_freq_cpu_exit,
+	.exit	= cpufreq_generic_exit,
 	.name	= "cris_freq",
-	.attr	= cris_freq_attr,
+	.attr	= cpufreq_generic_attr,
 };
 
 static int __init cris_freq_init(void)
diff --git a/drivers/cpufreq/cris-etraxfs-cpufreq.c b/drivers/cpufreq/cris-etraxfs-cpufreq.c
index 428395e39a6d..d384e638fdbb 100644
--- a/drivers/cpufreq/cris-etraxfs-cpufreq.c
+++ b/drivers/cpufreq/cris-etraxfs-cpufreq.c
@@ -54,11 +54,6 @@ static void cris_freq_set_cpu_state(struct cpufreq_policy *policy,
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
 };
 
-static int cris_freq_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, &cris_freq_table[0]);
-}
-
 static int cris_freq_target(struct cpufreq_policy *policy,
 			    unsigned int target_freq, unsigned int relation)
 {
@@ -82,25 +77,14 @@ static int cris_freq_cpu_init(struct cpufreq_policy *policy)
 	return cpufreq_table_validate_and_show(policy, cris_freq_table);
 }
 
-static int cris_freq_cpu_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
-}
-
-static struct freq_attr *cris_freq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver cris_freq_driver = {
 	.get = cris_freq_get_cpu_frequency,
-	.verify = cris_freq_verify,
+	.verify = cpufreq_generic_frequency_table_verify,
 	.target = cris_freq_target,
 	.init = cris_freq_cpu_init,
-	.exit = cris_freq_cpu_exit,
+	.exit = cpufreq_generic_exit,
 	.name = "cris_freq",
-	.attr = cris_freq_attr,
+	.attr = cpufreq_generic_attr,
 };
 
 static int __init cris_freq_init(void)
-- 
cgit 


From 39d0c362b4f808484985a9ffd899c784ee8fca4d Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:02 +0530
Subject: cpufreq: davinci: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the davinci driver.

Cc: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/davinci-cpufreq.c | 15 ++-------------
 1 file changed, 2 insertions(+), 13 deletions(-)

diff --git a/drivers/cpufreq/davinci-cpufreq.c b/drivers/cpufreq/davinci-cpufreq.c
index ba03e6f91d47..f2286423665e 100644
--- a/drivers/cpufreq/davinci-cpufreq.c
+++ b/drivers/cpufreq/davinci-cpufreq.c
@@ -155,26 +155,15 @@ static int davinci_cpu_init(struct cpufreq_policy *policy)
 	return 0;
 }
 
-static int davinci_cpu_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
-}
-
-static struct freq_attr *davinci_cpufreq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver davinci_driver = {
 	.flags		= CPUFREQ_STICKY,
 	.verify		= davinci_verify_speed,
 	.target		= davinci_target,
 	.get		= davinci_getspeed,
 	.init		= davinci_cpu_init,
-	.exit		= davinci_cpu_exit,
+	.exit		= cpufreq_generic_exit,
 	.name		= "davinci",
-	.attr		= davinci_cpufreq_attr,
+	.attr		= cpufreq_generic_attr,
 };
 
 static int __init davinci_cpufreq_probe(struct platform_device *pdev)
-- 
cgit 


From 47150e985cf99578bb1cd76a8cb60b18403c4b30 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:03 +0530
Subject: cpufreq: dbx500: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines for in the dbx500 driver.

Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/dbx500-cpufreq.c | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/cpufreq/dbx500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c
index 8a484e91bbe6..2d7063785002 100644
--- a/drivers/cpufreq/dbx500-cpufreq.c
+++ b/drivers/cpufreq/dbx500-cpufreq.c
@@ -19,16 +19,6 @@
 static struct cpufreq_frequency_table *freq_table;
 static struct clk *armss_clk;
 
-static struct freq_attr *dbx500_cpufreq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
-static int dbx500_cpufreq_verify_speed(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, freq_table);
-}
-
 static int dbx500_cpufreq_target(struct cpufreq_policy *policy,
 				unsigned int target_freq,
 				unsigned int relation)
@@ -113,12 +103,12 @@ static int dbx500_cpufreq_init(struct cpufreq_policy *policy)
 
 static struct cpufreq_driver dbx500_cpufreq_driver = {
 	.flags  = CPUFREQ_STICKY | CPUFREQ_CONST_LOOPS,
-	.verify = dbx500_cpufreq_verify_speed,
+	.verify = cpufreq_generic_frequency_table_verify,
 	.target = dbx500_cpufreq_target,
 	.get    = dbx500_cpufreq_getspeed,
 	.init   = dbx500_cpufreq_init,
 	.name   = "DBX500",
-	.attr   = dbx500_cpufreq_attr,
+	.attr   = cpufreq_generic_attr,
 };
 
 static int dbx500_cpufreq_probe(struct platform_device *pdev)
-- 
cgit 


From f51d2ac3267b7898fc3f8e8b0af33ffc24823190 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:04 +0530
Subject: cpufreq: e_powersaver: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the e_powersaver driver.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/e_powersaver.c | 15 ++-------------
 1 file changed, 2 insertions(+), 13 deletions(-)

diff --git a/drivers/cpufreq/e_powersaver.c b/drivers/cpufreq/e_powersaver.c
index c1b7c99d2ef1..a8cbbd05436f 100644
--- a/drivers/cpufreq/e_powersaver.c
+++ b/drivers/cpufreq/e_powersaver.c
@@ -198,12 +198,6 @@ static int eps_target(struct cpufreq_policy *policy,
 	return ret;
 }
 
-static int eps_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy,
-			&eps_cpu[policy->cpu]->freq_table[0]);
-}
-
 static int eps_cpu_init(struct cpufreq_policy *policy)
 {
 	unsigned int i;
@@ -423,19 +417,14 @@ static int eps_cpu_exit(struct cpufreq_policy *policy)
 	return 0;
 }
 
-static struct freq_attr *eps_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver eps_driver = {
-	.verify		= eps_verify,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= eps_target,
 	.init		= eps_cpu_init,
 	.exit		= eps_cpu_exit,
 	.get		= eps_get,
 	.name		= "e_powersaver",
-	.attr		= eps_attr,
+	.attr		= cpufreq_generic_attr,
 };
 
 
-- 
cgit 


From 06494eb783cf34fa1d67b77fa597b656b6ad07fe Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:05 +0530
Subject: cpufreq: elanfreq: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the elanfreq driver.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/elanfreq.c | 32 +++-----------------------------
 1 file changed, 3 insertions(+), 29 deletions(-)

diff --git a/drivers/cpufreq/elanfreq.c b/drivers/cpufreq/elanfreq.c
index 4000c34e5e59..fe7053cd68af 100644
--- a/drivers/cpufreq/elanfreq.c
+++ b/drivers/cpufreq/elanfreq.c
@@ -165,19 +165,6 @@ static void elanfreq_set_cpu_state(struct cpufreq_policy *policy,
 };
 
 
-/**
- *	elanfreq_validatespeed: test if frequency range is valid
- *	@policy: the policy to validate
- *
- *	This function checks if a given frequency range in kHz is valid
- *	for the hardware supported by the driver.
- */
-
-static int elanfreq_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, &elanfreq_table[0]);
-}
-
 static int elanfreq_target(struct cpufreq_policy *policy,
 			    unsigned int target_freq,
 			    unsigned int relation)
@@ -226,13 +213,6 @@ static int elanfreq_cpu_init(struct cpufreq_policy *policy)
 }
 
 
-static int elanfreq_cpu_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
-}
-
-
 #ifndef MODULE
 /**
  * elanfreq_setup - elanfreq command line parameter parsing
@@ -255,20 +235,14 @@ __setup("elanfreq=", elanfreq_setup);
 #endif
 
 
-static struct freq_attr *elanfreq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
-
 static struct cpufreq_driver elanfreq_driver = {
 	.get		= elanfreq_get_cpu_frequency,
-	.verify		= elanfreq_verify,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= elanfreq_target,
 	.init		= elanfreq_cpu_init,
-	.exit		= elanfreq_cpu_exit,
+	.exit		= cpufreq_generic_exit,
 	.name		= "elanfreq",
-	.attr		= elanfreq_attr,
+	.attr		= cpufreq_generic_attr,
 };
 
 static const struct x86_cpu_id elan_id[] = {
-- 
cgit 


From eea6181ed2904f379497918a032588f5e74566e4 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:06 +0530
Subject: cpufreq: exynos: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the exynos driver.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-By: Amit Daniel Kachhap <amit.daniel@samsung.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/exynos-cpufreq.c     | 23 +++--------------------
 drivers/cpufreq/exynos5440-cpufreq.c | 16 ++--------------
 2 files changed, 5 insertions(+), 34 deletions(-)

diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index 954baed95899..08338d42c77b 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -31,12 +31,6 @@ static unsigned int locking_frequency;
 static bool frequency_locked;
 static DEFINE_MUTEX(cpufreq_lock);
 
-static int exynos_verify_speed(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy,
-					      exynos_info->freq_table);
-}
-
 static unsigned int exynos_getspeed(unsigned int cpu)
 {
 	return clk_get_rate(exynos_info->cpu_clk) / 1000;
@@ -257,26 +251,15 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	return cpufreq_table_validate_and_show(policy, exynos_info->freq_table);
 }
 
-static int exynos_cpufreq_cpu_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
-}
-
-static struct freq_attr *exynos_cpufreq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver exynos_driver = {
 	.flags		= CPUFREQ_STICKY,
-	.verify		= exynos_verify_speed,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= exynos_target,
 	.get		= exynos_getspeed,
 	.init		= exynos_cpufreq_cpu_init,
-	.exit		= exynos_cpufreq_cpu_exit,
+	.exit		= cpufreq_generic_exit,
 	.name		= "exynos_cpufreq",
-	.attr		= exynos_cpufreq_attr,
+	.attr		= cpufreq_generic_attr,
 #ifdef CONFIG_PM
 	.suspend	= exynos_cpufreq_suspend,
 	.resume		= exynos_cpufreq_resume,
diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c
index 24df155f871e..bce6f7442aa5 100644
--- a/drivers/cpufreq/exynos5440-cpufreq.c
+++ b/drivers/cpufreq/exynos5440-cpufreq.c
@@ -209,12 +209,6 @@ static void exynos_enable_dvfs(void)
 				dvfs_info->base + XMU_DVFS_CTRL);
 }
 
-static int exynos_verify_speed(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy,
-					      dvfs_info->freq_table);
-}
-
 static unsigned int exynos_getspeed(unsigned int cpu)
 {
 	return dvfs_info->cur_frequency;
@@ -339,19 +333,13 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	return 0;
 }
 
-static int exynos_cpufreq_cpu_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
-}
-
 static struct cpufreq_driver exynos_driver = {
 	.flags		= CPUFREQ_STICKY,
-	.verify		= exynos_verify_speed,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= exynos_target,
 	.get		= exynos_getspeed,
 	.init		= exynos_cpufreq_cpu_init,
-	.exit		= exynos_cpufreq_cpu_exit,
+	.exit		= cpufreq_generic_exit,
 	.name		= CPUFREQ_NAME,
 };
 
-- 
cgit 


From 59b2413bfe51925858148a9d86ffe6b5bbf68a1a Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:07 +0530
Subject: cpufreq: ia64-acpi: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the ia64-acpi driver.

Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/ia64-acpi-cpufreq.c | 26 ++------------------------
 1 file changed, 2 insertions(+), 24 deletions(-)

diff --git a/drivers/cpufreq/ia64-acpi-cpufreq.c b/drivers/cpufreq/ia64-acpi-cpufreq.c
index 6cfad5193d3b..b958bdb17f55 100644
--- a/drivers/cpufreq/ia64-acpi-cpufreq.c
+++ b/drivers/cpufreq/ia64-acpi-cpufreq.c
@@ -247,22 +247,6 @@ acpi_cpufreq_target (
 }
 
 
-static int
-acpi_cpufreq_verify (
-	struct cpufreq_policy   *policy)
-{
-	unsigned int result = 0;
-	struct cpufreq_acpi_io *data = acpi_io_data[policy->cpu];
-
-	pr_debug("acpi_cpufreq_verify\n");
-
-	result = cpufreq_frequency_table_verify(policy,
-			data->freq_table);
-
-	return (result);
-}
-
-
 static int
 acpi_cpufreq_cpu_init (
 	struct cpufreq_policy   *policy)
@@ -394,20 +378,14 @@ acpi_cpufreq_cpu_exit (
 }
 
 
-static struct freq_attr* acpi_cpufreq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
-
 static struct cpufreq_driver acpi_cpufreq_driver = {
-	.verify 	= acpi_cpufreq_verify,
+	.verify 	= cpufreq_generic_frequency_table_verify,
 	.target 	= acpi_cpufreq_target,
 	.get 		= acpi_cpufreq_get,
 	.init		= acpi_cpufreq_cpu_init,
 	.exit		= acpi_cpufreq_cpu_exit,
 	.name		= "acpi-cpufreq",
-	.attr           = acpi_cpufreq_attr,
+	.attr		= cpufreq_generic_attr,
 };
 
 
-- 
cgit 


From 4f6ba385e9db26536e5dbee81a3ae83ec126fa07 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:08 +0530
Subject: cpufreq: imx6q: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines for in the imx6q driver.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/imx6q-cpufreq.c | 22 +++-------------------
 1 file changed, 3 insertions(+), 19 deletions(-)

diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index af0e202d8770..d83965737462 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -35,11 +35,6 @@ static struct device *cpu_dev;
 static struct cpufreq_frequency_table *freq_table;
 static unsigned int transition_latency;
 
-static int imx6q_verify_speed(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, freq_table);
-}
-
 static unsigned int imx6q_get_speed(unsigned int cpu)
 {
 	return clk_get_rate(arm_clk) / 1000;
@@ -174,25 +169,14 @@ static int imx6q_cpufreq_init(struct cpufreq_policy *policy)
 	return 0;
 }
 
-static int imx6q_cpufreq_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
-}
-
-static struct freq_attr *imx6q_cpufreq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver imx6q_cpufreq_driver = {
-	.verify = imx6q_verify_speed,
+	.verify = cpufreq_generic_frequency_table_verify,
 	.target = imx6q_set_target,
 	.get = imx6q_get_speed,
 	.init = imx6q_cpufreq_init,
-	.exit = imx6q_cpufreq_exit,
+	.exit = cpufreq_generic_exit,
 	.name = "imx6q-cpufreq",
-	.attr = imx6q_cpufreq_attr,
+	.attr = cpufreq_generic_attr,
 };
 
 static int imx6q_cpufreq_probe(struct platform_device *pdev)
-- 
cgit 


From a86a41a13e7971c85a6dc2c6865ff7747397ef21 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:09 +0530
Subject: cpufreq: kirkwood: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the kirkwood driver.

Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/kirkwood-cpufreq.c | 22 +++-------------------
 1 file changed, 3 insertions(+), 19 deletions(-)

diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c
index 59cbb351fc6e..1a4e4f4420a7 100644
--- a/drivers/cpufreq/kirkwood-cpufreq.c
+++ b/drivers/cpufreq/kirkwood-cpufreq.c
@@ -102,11 +102,6 @@ static void kirkwood_cpufreq_set_cpu_state(struct cpufreq_policy *policy,
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
 };
 
-static int kirkwood_cpufreq_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, kirkwood_freq_table);
-}
-
 static int kirkwood_cpufreq_target(struct cpufreq_policy *policy,
 			    unsigned int target_freq,
 			    unsigned int relation)
@@ -132,25 +127,14 @@ static int kirkwood_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	return cpufreq_table_validate_and_show(policy, kirkwood_freq_table);
 }
 
-static int kirkwood_cpufreq_cpu_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
-}
-
-static struct freq_attr *kirkwood_cpufreq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver kirkwood_cpufreq_driver = {
 	.get	= kirkwood_cpufreq_get_cpu_frequency,
-	.verify	= kirkwood_cpufreq_verify,
+	.verify	= cpufreq_generic_frequency_table_verify,
 	.target	= kirkwood_cpufreq_target,
 	.init	= kirkwood_cpufreq_cpu_init,
-	.exit	= kirkwood_cpufreq_cpu_exit,
+	.exit	= cpufreq_generic_exit,
 	.name	= "kirkwood-cpufreq",
-	.attr	= kirkwood_cpufreq_attr,
+	.attr	= cpufreq_generic_attr,
 };
 
 static int kirkwood_cpufreq_probe(struct platform_device *pdev)
-- 
cgit 


From 3a4d0342ebada05810a2400ef1db3c66d88ef22c Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:10 +0530
Subject: cpufreq: longhaul: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the longhaul driver.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/longhaul.c | 23 +++--------------------
 1 file changed, 3 insertions(+), 20 deletions(-)

diff --git a/drivers/cpufreq/longhaul.c b/drivers/cpufreq/longhaul.c
index 70b66fda3cad..57d7b02f863a 100644
--- a/drivers/cpufreq/longhaul.c
+++ b/drivers/cpufreq/longhaul.c
@@ -625,12 +625,6 @@ static void longhaul_setup_voltagescaling(void)
 }
 
 
-static int longhaul_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, longhaul_table);
-}
-
-
 static int longhaul_target(struct cpufreq_policy *policy,
 			    unsigned int target_freq, unsigned int relation)
 {
@@ -924,25 +918,14 @@ static int longhaul_cpu_init(struct cpufreq_policy *policy)
 	return cpufreq_table_validate_and_show(policy, longhaul_table);
 }
 
-static int longhaul_cpu_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
-}
-
-static struct freq_attr *longhaul_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver longhaul_driver = {
-	.verify	= longhaul_verify,
+	.verify	= cpufreq_generic_frequency_table_verify,
 	.target	= longhaul_target,
 	.get	= longhaul_get,
 	.init	= longhaul_cpu_init,
-	.exit	= longhaul_cpu_exit,
+	.exit	= cpufreq_generic_exit,
 	.name	= "longhaul",
-	.attr	= longhaul_attr,
+	.attr	= cpufreq_generic_attr,
 };
 
 static const struct x86_cpu_id longhaul_id[] = {
-- 
cgit 


From 6b0f8d737b703f99baf5240d281c28430ed7e775 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:11 +0530
Subject: cpufreq: loongson2: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the loongson2 driver.

Cc: John Crispin <blogic@openwrt.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/loongson2_cpufreq.c | 15 ++-------------
 1 file changed, 2 insertions(+), 13 deletions(-)

diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c
index cec4e723d61b..ed7fbe23437e 100644
--- a/drivers/cpufreq/loongson2_cpufreq.c
+++ b/drivers/cpufreq/loongson2_cpufreq.c
@@ -137,12 +137,6 @@ static int loongson2_cpufreq_cpu_init(struct cpufreq_policy *policy)
 					    &loongson2_clockmod_table[0]);
 }
 
-static int loongson2_cpufreq_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy,
-					      &loongson2_clockmod_table[0]);
-}
-
 static int loongson2_cpufreq_exit(struct cpufreq_policy *policy)
 {
 	cpufreq_frequency_table_put_attr(policy->cpu);
@@ -150,19 +144,14 @@ static int loongson2_cpufreq_exit(struct cpufreq_policy *policy)
 	return 0;
 }
 
-static struct freq_attr *loongson2_table_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver loongson2_cpufreq_driver = {
 	.name = "loongson2",
 	.init = loongson2_cpufreq_cpu_init,
-	.verify = loongson2_cpufreq_verify,
+	.verify = cpufreq_generic_frequency_table_verify,
 	.target = loongson2_cpufreq_target,
 	.get = loongson2_cpufreq_get,
 	.exit = loongson2_cpufreq_exit,
-	.attr = loongson2_table_attr,
+	.attr = cpufreq_generic_attr,
 };
 
 static struct platform_device_id platform_device_ids[] = {
-- 
cgit 


From b766b90896203e39c833ec9f76babd5ccb1303b1 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:12 +0530
Subject: cpufreq: maple: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the maple driver.

Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/maple-cpufreq.c | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/cpufreq/maple-cpufreq.c b/drivers/cpufreq/maple-cpufreq.c
index b3fb661b2b56..b23d1d8ab9cc 100644
--- a/drivers/cpufreq/maple-cpufreq.c
+++ b/drivers/cpufreq/maple-cpufreq.c
@@ -64,11 +64,6 @@ static struct cpufreq_frequency_table maple_cpu_freqs[] = {
 	{0,			CPUFREQ_TABLE_END},
 };
 
-static struct freq_attr *maple_cpu_freqs_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 /* Power mode data is an array of the 32 bits PCR values to use for
  * the various frequencies, retrieved from the device-tree
  */
@@ -135,11 +130,6 @@ static int maple_scom_query_freq(void)
  * Common interface to the cpufreq core
  */
 
-static int maple_cpufreq_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, maple_cpu_freqs);
-}
-
 static int maple_cpufreq_target(struct cpufreq_policy *policy,
 	unsigned int target_freq, unsigned int relation)
 {
@@ -190,10 +180,10 @@ static struct cpufreq_driver maple_cpufreq_driver = {
 	.name		= "maple",
 	.flags		= CPUFREQ_CONST_LOOPS,
 	.init		= maple_cpufreq_cpu_init,
-	.verify		= maple_cpufreq_verify,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= maple_cpufreq_target,
 	.get		= maple_cpufreq_get_speed,
-	.attr		= maple_cpu_freqs_attr,
+	.attr		= cpufreq_generic_attr,
 };
 
 static int __init maple_cpufreq_init(void)
-- 
cgit 


From d5ca1649c1aebf1e5c95a33fdd80ad415f41dd1d Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:13 +0530
Subject: cpufreq: omap: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the OMAP driver.

Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/omap-cpufreq.c | 16 ++--------------
 1 file changed, 2 insertions(+), 14 deletions(-)

diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index 091f23334337..48020b5b6a99 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -40,13 +40,6 @@ static struct clk *mpu_clk;
 static struct device *mpu_dev;
 static struct regulator *mpu_reg;
 
-static int omap_verify_speed(struct cpufreq_policy *policy)
-{
-	if (!freq_table)
-		return -EINVAL;
-	return cpufreq_frequency_table_verify(policy, freq_table);
-}
-
 static unsigned int omap_getspeed(unsigned int cpu)
 {
 	unsigned long rate;
@@ -227,20 +220,15 @@ static int omap_cpu_exit(struct cpufreq_policy *policy)
 	return 0;
 }
 
-static struct freq_attr *omap_cpufreq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver omap_driver = {
 	.flags		= CPUFREQ_STICKY,
-	.verify		= omap_verify_speed,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= omap_target,
 	.get		= omap_getspeed,
 	.init		= omap_cpu_init,
 	.exit		= omap_cpu_exit,
 	.name		= "omap",
-	.attr		= omap_cpufreq_attr,
+	.attr		= cpufreq_generic_attr,
 };
 
 static int omap_cpufreq_probe(struct platform_device *pdev)
-- 
cgit 


From 522f70cefaedf414d8856677f46836f262572a35 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:14 +0530
Subject: cpufreq: p4-clockmod: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the p4-clockmod driver.

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/p4-clockmod.c | 23 +++--------------------
 1 file changed, 3 insertions(+), 20 deletions(-)

diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c
index 03478bf29677..4fe6d4cac74c 100644
--- a/drivers/cpufreq/p4-clockmod.c
+++ b/drivers/cpufreq/p4-clockmod.c
@@ -140,12 +140,6 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy,
 }
 
 
-static int cpufreq_p4_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, &p4clockmod_table[0]);
-}
-
-
 static unsigned int cpufreq_p4_get_frequency(struct cpuinfo_x86 *c)
 {
 	if (c->x86 == 0x06) {
@@ -242,12 +236,6 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy)
 }
 
 
-static int cpufreq_p4_cpu_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
-}
-
 static unsigned int cpufreq_p4_get(unsigned int cpu)
 {
 	u32 l, h;
@@ -266,19 +254,14 @@ static unsigned int cpufreq_p4_get(unsigned int cpu)
 	return stock_freq;
 }
 
-static struct freq_attr *p4clockmod_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver p4clockmod_driver = {
-	.verify		= cpufreq_p4_verify,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= cpufreq_p4_target,
 	.init		= cpufreq_p4_cpu_init,
-	.exit		= cpufreq_p4_cpu_exit,
+	.exit		= cpufreq_generic_exit,
 	.get		= cpufreq_p4_get,
 	.name		= "p4-clockmod",
-	.attr		= p4clockmod_attr,
+	.attr		= cpufreq_generic_attr,
 };
 
 static const struct x86_cpu_id cpufreq_p4_id[] = {
-- 
cgit 


From 571743107dff548ca9dd24d6e6ec2dac2f5424a1 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:15 +0530
Subject: cpufreq: pasemi: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the pasemi driver.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/pasemi-cpufreq.c | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c
index 23bc8a82b99e..16f250809d7a 100644
--- a/drivers/cpufreq/pasemi-cpufreq.c
+++ b/drivers/cpufreq/pasemi-cpufreq.c
@@ -69,11 +69,6 @@ static struct cpufreq_frequency_table pas_freqs[] = {
 	{0,	CPUFREQ_TABLE_END},
 };
 
-static struct freq_attr *pas_cpu_freqs_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 /*
  * hardware specific functions
  */
@@ -251,11 +246,6 @@ static int pas_cpufreq_cpu_exit(struct cpufreq_policy *policy)
 	return 0;
 }
 
-static int pas_cpufreq_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, pas_freqs);
-}
-
 static int pas_cpufreq_target(struct cpufreq_policy *policy,
 			      unsigned int target_freq,
 			      unsigned int relation)
@@ -298,9 +288,9 @@ static struct cpufreq_driver pas_cpufreq_driver = {
 	.flags		= CPUFREQ_CONST_LOOPS,
 	.init		= pas_cpufreq_cpu_init,
 	.exit		= pas_cpufreq_cpu_exit,
-	.verify		= pas_cpufreq_verify,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= pas_cpufreq_target,
-	.attr		= pas_cpu_freqs_attr,
+	.attr		= cpufreq_generic_attr,
 };
 
 /*
-- 
cgit 


From 2633a46c581baa2a9bc33737dfbc792745e30554 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:16 +0530
Subject: cpufreq: pmac: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the pmac driver.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/pmac32-cpufreq.c | 14 ++------------
 drivers/cpufreq/pmac64-cpufreq.c | 14 ++------------
 2 files changed, 4 insertions(+), 24 deletions(-)

diff --git a/drivers/cpufreq/pmac32-cpufreq.c b/drivers/cpufreq/pmac32-cpufreq.c
index 470b5553bb66..8715ab99d80e 100644
--- a/drivers/cpufreq/pmac32-cpufreq.c
+++ b/drivers/cpufreq/pmac32-cpufreq.c
@@ -86,11 +86,6 @@ static struct cpufreq_frequency_table pmac_cpu_freqs[] = {
 	{0,			CPUFREQ_TABLE_END},
 };
 
-static struct freq_attr* pmac_cpu_freqs_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static inline void local_delay(unsigned long ms)
 {
 	if (no_schedule)
@@ -378,11 +373,6 @@ static unsigned int pmac_cpufreq_get_speed(unsigned int cpu)
 	return cur_freq;
 }
 
-static int pmac_cpufreq_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, pmac_cpu_freqs);
-}
-
 static int pmac_cpufreq_target(	struct cpufreq_policy *policy,
 					unsigned int target_freq,
 					unsigned int relation)
@@ -468,14 +458,14 @@ static int pmac_cpufreq_resume(struct cpufreq_policy *policy)
 }
 
 static struct cpufreq_driver pmac_cpufreq_driver = {
-	.verify 	= pmac_cpufreq_verify,
+	.verify 	= cpufreq_generic_frequency_table_verify,
 	.target 	= pmac_cpufreq_target,
 	.get		= pmac_cpufreq_get_speed,
 	.init		= pmac_cpufreq_cpu_init,
 	.suspend	= pmac_cpufreq_suspend,
 	.resume		= pmac_cpufreq_resume,
 	.flags		= CPUFREQ_PM_NO_WARN,
-	.attr		= pmac_cpu_freqs_attr,
+	.attr		= cpufreq_generic_attr,
 	.name		= "powermac",
 };
 
diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c
index 41fa89e4d9d8..e853b852b34b 100644
--- a/drivers/cpufreq/pmac64-cpufreq.c
+++ b/drivers/cpufreq/pmac64-cpufreq.c
@@ -70,11 +70,6 @@ static struct cpufreq_frequency_table g5_cpu_freqs[] = {
 	{0,			CPUFREQ_TABLE_END},
 };
 
-static struct freq_attr* g5_cpu_freqs_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 /* Power mode data is an array of the 32 bits PCR values to use for
  * the various frequencies, retrieved from the device-tree
  */
@@ -317,11 +312,6 @@ static int g5_pfunc_query_freq(void)
  * Common interface to the cpufreq core
  */
 
-static int g5_cpufreq_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, g5_cpu_freqs);
-}
-
 static int g5_cpufreq_target(struct cpufreq_policy *policy,
 	unsigned int target_freq, unsigned int relation)
 {
@@ -372,10 +362,10 @@ static struct cpufreq_driver g5_cpufreq_driver = {
 	.name		= "powermac",
 	.flags		= CPUFREQ_CONST_LOOPS,
 	.init		= g5_cpufreq_cpu_init,
-	.verify		= g5_cpufreq_verify,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= g5_cpufreq_target,
 	.get		= g5_cpufreq_get_speed,
-	.attr 		= g5_cpu_freqs_attr,
+	.attr 		= cpufreq_generic_attr,
 };
 
 
-- 
cgit 


From d63bd27fe953daa402a108e141c36dcc59c6931c Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:17 +0530
Subject: cpufreq: powernow: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the powernow driver.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/powernow-k6.c | 22 ++--------------------
 drivers/cpufreq/powernow-k7.c | 14 ++------------
 drivers/cpufreq/powernow-k8.c | 20 ++------------------
 3 files changed, 6 insertions(+), 50 deletions(-)

diff --git a/drivers/cpufreq/powernow-k6.c b/drivers/cpufreq/powernow-k6.c
index ab1de0d25099..ff05d284e48e 100644
--- a/drivers/cpufreq/powernow-k6.c
+++ b/drivers/cpufreq/powernow-k6.c
@@ -104,19 +104,6 @@ static void powernow_k6_set_state(struct cpufreq_policy *policy,
 }
 
 
-/**
- * powernow_k6_verify - verifies a new CPUfreq policy
- * @policy: new policy
- *
- * Policy must be within lowest and highest possible CPU Frequency,
- * and at least one possible state must be within min and max.
- */
-static int powernow_k6_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, &clock_ratio[0]);
-}
-
-
 /**
  * powernow_k6_setpolicy - sets a new CPUFreq policy
  * @policy: new policy
@@ -188,19 +175,14 @@ static unsigned int powernow_k6_get(unsigned int cpu)
 	return ret;
 }
 
-static struct freq_attr *powernow_k6_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver powernow_k6_driver = {
-	.verify		= powernow_k6_verify,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= powernow_k6_target,
 	.init		= powernow_k6_cpu_init,
 	.exit		= powernow_k6_cpu_exit,
 	.get		= powernow_k6_get,
 	.name		= "powernow-k6",
-	.attr		= powernow_k6_attr,
+	.attr		= cpufreq_generic_attr,
 };
 
 static const struct x86_cpu_id powernow_k6_ids[] = {
diff --git a/drivers/cpufreq/powernow-k7.c b/drivers/cpufreq/powernow-k7.c
index c863c13dfcc8..14cd98f5a096 100644
--- a/drivers/cpufreq/powernow-k7.c
+++ b/drivers/cpufreq/powernow-k7.c
@@ -549,11 +549,6 @@ static int powernow_target(struct cpufreq_policy *policy,
 }
 
 
-static int powernow_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, powernow_table);
-}
-
 /*
  * We use the fact that the bus frequency is somehow
  * a multiple of 100000/3 khz, then we compute sgtc according
@@ -699,13 +694,8 @@ static int powernow_cpu_exit(struct cpufreq_policy *policy)
 	return 0;
 }
 
-static struct freq_attr *powernow_table_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver powernow_driver = {
-	.verify		= powernow_verify,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= powernow_target,
 	.get		= powernow_get,
 #ifdef CONFIG_X86_POWERNOW_K7_ACPI
@@ -714,7 +704,7 @@ static struct cpufreq_driver powernow_driver = {
 	.init		= powernow_cpu_init,
 	.exit		= powernow_cpu_exit,
 	.name		= "powernow-k7",
-	.attr		= powernow_table_attr,
+	.attr		= cpufreq_generic_attr,
 };
 
 static int __init powernow_init(void)
diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c
index 8d4114a043b3..1e6f68af87a4 100644
--- a/drivers/cpufreq/powernow-k8.c
+++ b/drivers/cpufreq/powernow-k8.c
@@ -1053,17 +1053,6 @@ static int powernowk8_target(struct cpufreq_policy *pol,
 	return work_on_cpu(pol->cpu, powernowk8_target_fn, &pta);
 }
 
-/* Driver entry point to verify the policy and range of frequencies */
-static int powernowk8_verify(struct cpufreq_policy *pol)
-{
-	struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu);
-
-	if (!data)
-		return -EINVAL;
-
-	return cpufreq_frequency_table_verify(pol, data->powernow_table);
-}
-
 struct init_on_cpu {
 	struct powernow_k8_data *data;
 	int rc;
@@ -1225,20 +1214,15 @@ out:
 	return khz;
 }
 
-static struct freq_attr *powernow_k8_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver cpufreq_amd64_driver = {
-	.verify		= powernowk8_verify,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= powernowk8_target,
 	.bios_limit	= acpi_processor_get_bios_limit,
 	.init		= powernowk8_cpu_init,
 	.exit		= powernowk8_cpu_exit,
 	.get		= powernowk8_get,
 	.name		= "powernow-k8",
-	.attr		= powernow_k8_attr,
+	.attr		= cpufreq_generic_attr,
 };
 
 static void __request_acpi_cpufreq(void)
-- 
cgit 


From dc2398d7ff282bce5a348481024e41f96e40e854 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:18 +0530
Subject: cpufreq: ppc-corenet: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the ppc-corenet driver.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/ppc-corenet-cpufreq.c | 17 ++---------------
 1 file changed, 2 insertions(+), 15 deletions(-)

diff --git a/drivers/cpufreq/ppc-corenet-cpufreq.c b/drivers/cpufreq/ppc-corenet-cpufreq.c
index 5716b44ffc0d..befd489314e8 100644
--- a/drivers/cpufreq/ppc-corenet-cpufreq.c
+++ b/drivers/cpufreq/ppc-corenet-cpufreq.c
@@ -252,14 +252,6 @@ static int __exit corenet_cpufreq_cpu_exit(struct cpufreq_policy *policy)
 	return 0;
 }
 
-static int corenet_cpufreq_verify(struct cpufreq_policy *policy)
-{
-	struct cpufreq_frequency_table *table =
-		per_cpu(cpu_data, policy->cpu)->table;
-
-	return cpufreq_frequency_table_verify(policy, table);
-}
-
 static int corenet_cpufreq_target(struct cpufreq_policy *policy,
 		unsigned int target_freq, unsigned int relation)
 {
@@ -292,20 +284,15 @@ static int corenet_cpufreq_target(struct cpufreq_policy *policy,
 	return ret;
 }
 
-static struct freq_attr *corenet_cpufreq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver ppc_corenet_cpufreq_driver = {
 	.name		= "ppc_cpufreq",
 	.flags		= CPUFREQ_CONST_LOOPS,
 	.init		= corenet_cpufreq_cpu_init,
 	.exit		= __exit_p(corenet_cpufreq_cpu_exit),
-	.verify		= corenet_cpufreq_verify,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= corenet_cpufreq_target,
 	.get		= corenet_cpufreq_get_speed,
-	.attr		= corenet_cpufreq_attr,
+	.attr		= cpufreq_generic_attr,
 };
 
 static const struct of_device_id node_matches[] __initdata = {
-- 
cgit 


From c3bc3d67ff07c1986e8ededc14e3fbdd26528f17 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:19 +0530
Subject: cpufreq: ppc_cbe: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the ppc_cbe driver.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/ppc_cbe_cpufreq.c | 15 ++-------------
 1 file changed, 2 insertions(+), 13 deletions(-)

diff --git a/drivers/cpufreq/ppc_cbe_cpufreq.c b/drivers/cpufreq/ppc_cbe_cpufreq.c
index 6c5be63ce918..38540d1f5939 100644
--- a/drivers/cpufreq/ppc_cbe_cpufreq.c
+++ b/drivers/cpufreq/ppc_cbe_cpufreq.c
@@ -128,17 +128,6 @@ static int cbe_cpufreq_cpu_init(struct cpufreq_policy *policy)
 	return cpufreq_table_validate_and_show(policy, cbe_freqs);
 }
 
-static int cbe_cpufreq_cpu_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
-}
-
-static int cbe_cpufreq_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, cbe_freqs);
-}
-
 static int cbe_cpufreq_target(struct cpufreq_policy *policy,
 			      unsigned int target_freq,
 			      unsigned int relation)
@@ -174,10 +163,10 @@ static int cbe_cpufreq_target(struct cpufreq_policy *policy,
 }
 
 static struct cpufreq_driver cbe_cpufreq_driver = {
-	.verify		= cbe_cpufreq_verify,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= cbe_cpufreq_target,
 	.init		= cbe_cpufreq_cpu_init,
-	.exit		= cbe_cpufreq_cpu_exit,
+	.exit		= cpufreq_generic_exit,
 	.name		= "cbe-cpufreq",
 	.flags		= CPUFREQ_CONST_LOOPS,
 };
-- 
cgit 


From bf36e48d737ebcb2282f51c08e9c7667e30ed3b6 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:20 +0530
Subject: cpufreq: pxa: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the PXA driver.

Cc: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/pxa2xx-cpufreq.c | 27 ++-------------------------
 drivers/cpufreq/pxa3xx-cpufreq.c | 15 ++-------------
 2 files changed, 4 insertions(+), 38 deletions(-)

diff --git a/drivers/cpufreq/pxa2xx-cpufreq.c b/drivers/cpufreq/pxa2xx-cpufreq.c
index 236531a0753a..82905fe0041b 100644
--- a/drivers/cpufreq/pxa2xx-cpufreq.c
+++ b/drivers/cpufreq/pxa2xx-cpufreq.c
@@ -262,23 +262,6 @@ static u32 mdrefr_dri(unsigned int freq)
 	return (interval - (cpu_is_pxa27x() ? 31 : 0)) / 32;
 }
 
-/* find a valid frequency point */
-static int pxa_verify_policy(struct cpufreq_policy *policy)
-{
-	struct cpufreq_frequency_table *pxa_freqs_table;
-	pxa_freqs_t *pxa_freqs;
-	int ret;
-
-	find_freq_tables(&pxa_freqs_table, &pxa_freqs);
-	ret = cpufreq_frequency_table_verify(policy, pxa_freqs_table);
-
-	if (freq_debug)
-		pr_debug("Verified CPU policy: %dKhz min to %dKhz max\n",
-			 policy->min, policy->max);
-
-	return ret;
-}
-
 static unsigned int pxa_cpufreq_get(unsigned int cpu)
 {
 	return get_clk_frequency_khz(0);
@@ -465,17 +448,11 @@ static int pxa_cpufreq_init(struct cpufreq_policy *policy)
 	return 0;
 }
 
-static int pxa_cpufreq_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
-}
-
 static struct cpufreq_driver pxa_cpufreq_driver = {
-	.verify	= pxa_verify_policy,
+	.verify	= cpufreq_generic_frequency_table_verify,
 	.target	= pxa_set_target,
 	.init	= pxa_cpufreq_init,
-	.exit	= pxa_cpufreq_exit,
+	.exit	= cpufreq_generic_exit,
 	.get	= pxa_cpufreq_get,
 	.name	= "PXA2xx",
 };
diff --git a/drivers/cpufreq/pxa3xx-cpufreq.c b/drivers/cpufreq/pxa3xx-cpufreq.c
index 65fd01e57cba..ae3ac08a7b23 100644
--- a/drivers/cpufreq/pxa3xx-cpufreq.c
+++ b/drivers/cpufreq/pxa3xx-cpufreq.c
@@ -150,11 +150,6 @@ static void __update_bus_freq(struct pxa3xx_freq_info *info)
 		cpu_relax();
 }
 
-static int pxa3xx_cpufreq_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, pxa3xx_freqs_table);
-}
-
 static unsigned int pxa3xx_cpufreq_get(unsigned int cpu)
 {
 	return pxa3xx_get_clk_frequency_khz(0);
@@ -229,17 +224,11 @@ static int pxa3xx_cpufreq_init(struct cpufreq_policy *policy)
 	return 0;
 }
 
-static int pxa3xx_cpufreq_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
-}
-
 static struct cpufreq_driver pxa3xx_cpufreq_driver = {
-	.verify		= pxa3xx_cpufreq_verify,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= pxa3xx_cpufreq_set,
 	.init		= pxa3xx_cpufreq_init,
-	.exit		= pxa3xx_cpufreq_exit,
+	.exit		= cpufreq_generic_exit,
 	.get		= pxa3xx_cpufreq_get,
 	.name		= "pxa3xx-cpufreq",
 };
-- 
cgit 


From e96a410540764c21464c22660f7da9d3bfede815 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:21 +0530
Subject: cpufreq: s3cx4xx: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the s3cx4xx driver.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/s3c2416-cpufreq.c | 19 ++-----------------
 drivers/cpufreq/s3c24xx-cpufreq.c |  9 ---------
 drivers/cpufreq/s3c64xx-cpufreq.c | 10 +---------
 3 files changed, 3 insertions(+), 35 deletions(-)

diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c
index a7a4c612d156..8c57f10b2ff6 100644
--- a/drivers/cpufreq/s3c2416-cpufreq.c
+++ b/drivers/cpufreq/s3c2416-cpufreq.c
@@ -87,16 +87,6 @@ static struct cpufreq_frequency_table s3c2450_freq_table[] = {
 	{ 0, CPUFREQ_TABLE_END },
 };
 
-static int s3c2416_cpufreq_verify_speed(struct cpufreq_policy *policy)
-{
-	struct s3c2416_data *s3c_freq = &s3c2416_cpufreq;
-
-	if (policy->cpu != 0)
-		return -EINVAL;
-
-	return cpufreq_frequency_table_verify(policy, s3c_freq->freq_table);
-}
-
 static unsigned int s3c2416_cpufreq_get_speed(unsigned int cpu)
 {
 	struct s3c2416_data *s3c_freq = &s3c2416_cpufreq;
@@ -516,19 +506,14 @@ err_hclk:
 	return ret;
 }
 
-static struct freq_attr *s3c2416_cpufreq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver s3c2416_cpufreq_driver = {
 	.flags          = 0,
-	.verify		= s3c2416_cpufreq_verify_speed,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= s3c2416_cpufreq_set_target,
 	.get		= s3c2416_cpufreq_get_speed,
 	.init		= s3c2416_cpufreq_driver_init,
 	.name		= "s3c2416",
-	.attr		= s3c2416_cpufreq_attr,
+	.attr		= cpufreq_generic_attr,
 };
 
 static int __init s3c2416_cpufreq_init(void)
diff --git a/drivers/cpufreq/s3c24xx-cpufreq.c b/drivers/cpufreq/s3c24xx-cpufreq.c
index 73856d1d4d40..027dec1cf09a 100644
--- a/drivers/cpufreq/s3c24xx-cpufreq.c
+++ b/drivers/cpufreq/s3c24xx-cpufreq.c
@@ -416,14 +416,6 @@ static int __init s3c_cpufreq_initclks(void)
 	return 0;
 }
 
-static int s3c_cpufreq_verify(struct cpufreq_policy *policy)
-{
-	if (policy->cpu != 0)
-		return -EINVAL;
-
-	return 0;
-}
-
 #ifdef CONFIG_PM
 static struct cpufreq_frequency_table suspend_pll;
 static unsigned int suspend_freq;
@@ -473,7 +465,6 @@ static int s3c_cpufreq_resume(struct cpufreq_policy *policy)
 
 static struct cpufreq_driver s3c24xx_driver = {
 	.flags		= CPUFREQ_STICKY,
-	.verify		= s3c_cpufreq_verify,
 	.target		= s3c_cpufreq_target,
 	.get		= s3c_cpufreq_get,
 	.init		= s3c_cpufreq_init,
diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c
index 872f74dd401a..99fbc49af958 100644
--- a/drivers/cpufreq/s3c64xx-cpufreq.c
+++ b/drivers/cpufreq/s3c64xx-cpufreq.c
@@ -54,14 +54,6 @@ static struct cpufreq_frequency_table s3c64xx_freq_table[] = {
 };
 #endif
 
-static int s3c64xx_cpufreq_verify_speed(struct cpufreq_policy *policy)
-{
-	if (policy->cpu != 0)
-		return -EINVAL;
-
-	return cpufreq_frequency_table_verify(policy, s3c64xx_freq_table);
-}
-
 static unsigned int s3c64xx_cpufreq_get_speed(unsigned int cpu)
 {
 	if (cpu != 0)
@@ -264,7 +256,7 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy)
 
 static struct cpufreq_driver s3c64xx_cpufreq_driver = {
 	.flags          = 0,
-	.verify		= s3c64xx_cpufreq_verify_speed,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= s3c64xx_cpufreq_set_target,
 	.get		= s3c64xx_cpufreq_get_speed,
 	.init		= s3c64xx_cpufreq_driver_init,
-- 
cgit 


From 9c3c6e337d022291da119c9b5a210eae93884ec4 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:22 +0530
Subject: cpufreq: s5pv210: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the s5pv210 driver.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/s5pv210-cpufreq.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/cpufreq/s5pv210-cpufreq.c b/drivers/cpufreq/s5pv210-cpufreq.c
index c266a7ef3a7b..0eafc528f131 100644
--- a/drivers/cpufreq/s5pv210-cpufreq.c
+++ b/drivers/cpufreq/s5pv210-cpufreq.c
@@ -174,14 +174,6 @@ static void s5pv210_set_refresh(enum s5pv210_dmc_port ch, unsigned long freq)
 	__raw_writel(tmp1, reg);
 }
 
-static int s5pv210_verify_speed(struct cpufreq_policy *policy)
-{
-	if (policy->cpu)
-		return -EINVAL;
-
-	return cpufreq_frequency_table_verify(policy, s5pv210_freq_table);
-}
-
 static unsigned int s5pv210_getspeed(unsigned int cpu)
 {
 	if (cpu)
@@ -603,7 +595,7 @@ static int s5pv210_cpufreq_reboot_notifier_event(struct notifier_block *this,
 
 static struct cpufreq_driver s5pv210_driver = {
 	.flags		= CPUFREQ_STICKY,
-	.verify		= s5pv210_verify_speed,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= s5pv210_target,
 	.get		= s5pv210_getspeed,
 	.init		= s5pv210_cpu_init,
-- 
cgit 


From dd9f263956727320a2bcba8ffae7e9ab4a5be8a6 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:23 +0530
Subject: cpufreq: sa11x0: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the sa11x0 driver.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/arm/mach-sa1100/generic.c   | 22 ----------------------
 arch/arm/mach-sa1100/generic.h   |  1 -
 drivers/cpufreq/sa1100-cpufreq.c |  2 +-
 drivers/cpufreq/sa1110-cpufreq.c |  2 +-
 4 files changed, 2 insertions(+), 25 deletions(-)

diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c
index 5c8167b05c26..cb4b2ca3cf6b 100644
--- a/arch/arm/mach-sa1100/generic.c
+++ b/arch/arm/mach-sa1100/generic.c
@@ -82,28 +82,6 @@ unsigned int sa11x0_ppcr_to_freq(unsigned int idx)
 	return freq;
 }
 
-
-/* make sure that only the "userspace" governor is run -- anything else wouldn't make sense on
- * this platform, anyway.
- */
-int sa11x0_verify_speed(struct cpufreq_policy *policy)
-{
-	unsigned int tmp;
-	if (policy->cpu)
-		return -EINVAL;
-
-	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, policy->cpuinfo.max_freq);
-
-	/* make sure that at least one frequency is within the policy */
-	tmp = sa11x0_freq_table[sa11x0_freq_to_ppcr(policy->min)].frequency;
-	if (tmp > policy->max)
-		policy->max = tmp;
-
-	cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq, policy->cpuinfo.max_freq);
-
-	return 0;
-}
-
 unsigned int sa11x0_getspeed(unsigned int cpu)
 {
 	if (cpu)
diff --git a/arch/arm/mach-sa1100/generic.h b/arch/arm/mach-sa1100/generic.h
index f5214ce494ab..39d56a676566 100644
--- a/arch/arm/mach-sa1100/generic.h
+++ b/arch/arm/mach-sa1100/generic.h
@@ -23,7 +23,6 @@ struct cpufreq_policy;
 
 extern struct cpufreq_frequency_table sa11x0_freq_table[];
 extern unsigned int sa11x0_freq_to_ppcr(unsigned int khz);
-extern int sa11x0_verify_speed(struct cpufreq_policy *policy);
 extern unsigned int sa11x0_getspeed(unsigned int cpu);
 extern unsigned int sa11x0_ppcr_to_freq(unsigned int idx);
 
diff --git a/drivers/cpufreq/sa1100-cpufreq.c b/drivers/cpufreq/sa1100-cpufreq.c
index 37fce2f15711..80a4fde0021f 100644
--- a/drivers/cpufreq/sa1100-cpufreq.c
+++ b/drivers/cpufreq/sa1100-cpufreq.c
@@ -228,7 +228,7 @@ static int __init sa1100_cpu_init(struct cpufreq_policy *policy)
 
 static struct cpufreq_driver sa1100_driver __refdata = {
 	.flags		= CPUFREQ_STICKY,
-	.verify		= sa11x0_verify_speed,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= sa1100_target,
 	.get		= sa11x0_getspeed,
 	.init		= sa1100_cpu_init,
diff --git a/drivers/cpufreq/sa1110-cpufreq.c b/drivers/cpufreq/sa1110-cpufreq.c
index 13760fc63859..a38d904d168e 100644
--- a/drivers/cpufreq/sa1110-cpufreq.c
+++ b/drivers/cpufreq/sa1110-cpufreq.c
@@ -344,7 +344,7 @@ static int __init sa1110_cpu_init(struct cpufreq_policy *policy)
  * it with cpufreq_register_driver() */
 static struct cpufreq_driver sa1110_driver __refdata = {
 	.flags		= CPUFREQ_STICKY,
-	.verify		= sa11x0_verify_speed,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= sa1110_target,
 	.get		= sa11x0_getspeed,
 	.init		= sa1110_cpu_init,
-- 
cgit 


From a823c4aecdcdc0ead1a80f280cb2baa31d118462 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:24 +0530
Subject: cpufreq: sc520: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the sc520 driver.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/sc520_freq.c | 24 +++---------------------
 1 file changed, 3 insertions(+), 21 deletions(-)

diff --git a/drivers/cpufreq/sc520_freq.c b/drivers/cpufreq/sc520_freq.c
index bb9c0def3f0d..85562251f99f 100644
--- a/drivers/cpufreq/sc520_freq.c
+++ b/drivers/cpufreq/sc520_freq.c
@@ -78,11 +78,6 @@ static void sc520_freq_set_cpu_state(struct cpufreq_policy *policy,
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
 };
 
-static int sc520_freq_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, &sc520_freq_table[0]);
-}
-
 static int sc520_freq_target(struct cpufreq_policy *policy,
 			    unsigned int target_freq,
 			    unsigned int relation)
@@ -120,27 +115,14 @@ static int sc520_freq_cpu_init(struct cpufreq_policy *policy)
 }
 
 
-static int sc520_freq_cpu_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
-}
-
-
-static struct freq_attr *sc520_freq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
-
 static struct cpufreq_driver sc520_freq_driver = {
 	.get	= sc520_freq_get_cpu_frequency,
-	.verify	= sc520_freq_verify,
+	.verify	= cpufreq_generic_frequency_table_verify,
 	.target	= sc520_freq_target,
 	.init	= sc520_freq_cpu_init,
-	.exit	= sc520_freq_cpu_exit,
+	.exit	= cpufreq_generic_exit,
 	.name	= "sc520_freq",
-	.attr	= sc520_freq_attr,
+	.attr	= cpufreq_generic_attr,
 };
 
 static const struct x86_cpu_id sc520_ids[] = {
-- 
cgit 


From a8f64decf383aaf16fd4698f753d3a4c26fbba7d Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:25 +0530
Subject: cpufreq: sh: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the sh driver.

Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/sh-cpufreq.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/cpufreq/sh-cpufreq.c b/drivers/cpufreq/sh-cpufreq.c
index f1fb944d714c..c681b86932c5 100644
--- a/drivers/cpufreq/sh-cpufreq.c
+++ b/drivers/cpufreq/sh-cpufreq.c
@@ -151,11 +151,6 @@ static int sh_cpufreq_cpu_exit(struct cpufreq_policy *policy)
 	return 0;
 }
 
-static struct freq_attr *sh_freq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver sh_cpufreq_driver = {
 	.name		= "sh",
 	.get		= sh_cpufreq_get,
@@ -163,7 +158,7 @@ static struct cpufreq_driver sh_cpufreq_driver = {
 	.verify		= sh_cpufreq_verify,
 	.init		= sh_cpufreq_cpu_init,
 	.exit		= sh_cpufreq_cpu_exit,
-	.attr		= sh_freq_attr,
+	.attr		= cpufreq_generic_attr,
 };
 
 static int __init sh_cpufreq_module_init(void)
-- 
cgit 


From 7a1874a0645b7cefd80c379db6d78916dd0788a1 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:26 +0530
Subject: cpufreq: sparc: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the sparc driver.

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/sparc-us2e-cpufreq.c | 8 +-------
 drivers/cpufreq/sparc-us3-cpufreq.c  | 8 +-------
 2 files changed, 2 insertions(+), 14 deletions(-)

diff --git a/drivers/cpufreq/sparc-us2e-cpufreq.c b/drivers/cpufreq/sparc-us2e-cpufreq.c
index 8db0c1890c92..291688c1da9a 100644
--- a/drivers/cpufreq/sparc-us2e-cpufreq.c
+++ b/drivers/cpufreq/sparc-us2e-cpufreq.c
@@ -295,12 +295,6 @@ static int us2e_freq_target(struct cpufreq_policy *policy,
 	return 0;
 }
 
-static int us2e_freq_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy,
-					      &us2e_freq_table[policy->cpu].table[0]);
-}
-
 static int __init us2e_freq_cpu_init(struct cpufreq_policy *policy)
 {
 	unsigned int cpu = policy->cpu;
@@ -363,7 +357,7 @@ static int __init us2e_freq_init(void)
 			goto err_out;
 
 		driver->init = us2e_freq_cpu_init;
-		driver->verify = us2e_freq_verify;
+		driver->verify = cpufreq_generic_frequency_table_verify;
 		driver->target = us2e_freq_target;
 		driver->get = us2e_freq_get;
 		driver->exit = us2e_freq_cpu_exit;
diff --git a/drivers/cpufreq/sparc-us3-cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c
index 120a2df2bc70..9b3dbd31362e 100644
--- a/drivers/cpufreq/sparc-us3-cpufreq.c
+++ b/drivers/cpufreq/sparc-us3-cpufreq.c
@@ -156,12 +156,6 @@ static int us3_freq_target(struct cpufreq_policy *policy,
 	return 0;
 }
 
-static int us3_freq_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy,
-					      &us3_freq_table[policy->cpu].table[0]);
-}
-
 static int __init us3_freq_cpu_init(struct cpufreq_policy *policy)
 {
 	unsigned int cpu = policy->cpu;
@@ -224,7 +218,7 @@ static int __init us3_freq_init(void)
 			goto err_out;
 
 		driver->init = us3_freq_cpu_init;
-		driver->verify = us3_freq_verify;
+		driver->verify = cpufreq_generic_frequency_table_verify;
 		driver->target = us3_freq_target;
 		driver->get = us3_freq_get;
 		driver->exit = us3_freq_cpu_exit;
-- 
cgit 


From e2132fa66d1ee74a975fd6c42c0aa2fe91e3fc75 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:27 +0530
Subject: cpufreq: spear: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the spear driver.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/spear-cpufreq.c | 22 +++-------------------
 1 file changed, 3 insertions(+), 19 deletions(-)

diff --git a/drivers/cpufreq/spear-cpufreq.c b/drivers/cpufreq/spear-cpufreq.c
index b86be6bd9b92..e9657e33b654 100644
--- a/drivers/cpufreq/spear-cpufreq.c
+++ b/drivers/cpufreq/spear-cpufreq.c
@@ -30,11 +30,6 @@ static struct {
 	u32 cnt;
 } spear_cpufreq;
 
-static int spear_cpufreq_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, spear_cpufreq.freq_tbl);
-}
-
 static unsigned int spear_cpufreq_get(unsigned int cpu)
 {
 	return clk_get_rate(spear_cpufreq.clk) / 1000;
@@ -192,26 +187,15 @@ static int spear_cpufreq_init(struct cpufreq_policy *policy)
 	return 0;
 }
 
-static int spear_cpufreq_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
-}
-
-static struct freq_attr *spear_cpufreq_attr[] = {
-	 &cpufreq_freq_attr_scaling_available_freqs,
-	 NULL,
-};
-
 static struct cpufreq_driver spear_cpufreq_driver = {
 	.name		= "cpufreq-spear",
 	.flags		= CPUFREQ_STICKY,
-	.verify		= spear_cpufreq_verify,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= spear_cpufreq_target,
 	.get		= spear_cpufreq_get,
 	.init		= spear_cpufreq_init,
-	.exit		= spear_cpufreq_exit,
-	.attr		= spear_cpufreq_attr,
+	.exit		= cpufreq_generic_exit,
+	.attr		= cpufreq_generic_attr,
 };
 
 static int spear_cpufreq_driver_init(void)
-- 
cgit 


From 3be1394a6873496c36d99899fb6ba76ff03a2e96 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:28 +0530
Subject: cpufreq: speedstep: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the speedstep driver.

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/speedstep-centrino.c | 22 ++--------------------
 drivers/cpufreq/speedstep-ich.c      | 30 +++---------------------------
 drivers/cpufreq/speedstep-smi.c      | 30 +++---------------------------
 3 files changed, 8 insertions(+), 74 deletions(-)

diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c
index f180561c3635..c7c14ae1935f 100644
--- a/drivers/cpufreq/speedstep-centrino.c
+++ b/drivers/cpufreq/speedstep-centrino.c
@@ -419,19 +419,6 @@ static int centrino_cpu_exit(struct cpufreq_policy *policy)
 	return 0;
 }
 
-/**
- * centrino_verify - verifies a new CPUFreq policy
- * @policy: new policy
- *
- * Limit must be within this model's frequency range at least one
- * border included.
- */
-static int centrino_verify (struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy,
-			per_cpu(centrino_model, policy->cpu)->op_points);
-}
-
 /**
  * centrino_setpolicy - set a new CPUFreq policy
  * @policy: new policy
@@ -553,20 +540,15 @@ out:
 	return retval;
 }
 
-static struct freq_attr* centrino_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver centrino_driver = {
 	.name		= "centrino", /* should be speedstep-centrino,
 					 but there's a 16 char limit */
 	.init		= centrino_cpu_init,
 	.exit		= centrino_cpu_exit,
-	.verify		= centrino_verify,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= centrino_target,
 	.get		= get_cur_freq,
-	.attr           = centrino_attr,
+	.attr		= cpufreq_generic_attr,
 };
 
 /*
diff --git a/drivers/cpufreq/speedstep-ich.c b/drivers/cpufreq/speedstep-ich.c
index 86a184eaa815..929a4f0469a3 100644
--- a/drivers/cpufreq/speedstep-ich.c
+++ b/drivers/cpufreq/speedstep-ich.c
@@ -289,18 +289,6 @@ static int speedstep_target(struct cpufreq_policy *policy,
 }
 
 
-/**
- * speedstep_verify - verifies a new CPUFreq policy
- * @policy: new policy
- *
- * Limit must be within speedstep_low_freq and speedstep_high_freq, with
- * at least one border included.
- */
-static int speedstep_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, &speedstep_freqs[0]);
-}
-
 struct get_freqs {
 	struct cpufreq_policy *policy;
 	int ret;
@@ -352,26 +340,14 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy)
 }
 
 
-static int speedstep_cpu_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
-}
-
-static struct freq_attr *speedstep_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
-
 static struct cpufreq_driver speedstep_driver = {
 	.name	= "speedstep-ich",
-	.verify	= speedstep_verify,
+	.verify	= cpufreq_generic_frequency_table_verify,
 	.target	= speedstep_target,
 	.init	= speedstep_cpu_init,
-	.exit	= speedstep_cpu_exit,
+	.exit	= cpufreq_generic_exit,
 	.get	= speedstep_get,
-	.attr	= speedstep_attr,
+	.attr	= cpufreq_generic_attr,
 };
 
 static const struct x86_cpu_id ss_smi_ids[] = {
diff --git a/drivers/cpufreq/speedstep-smi.c b/drivers/cpufreq/speedstep-smi.c
index f4d03186e0c1..b3dfba0daabb 100644
--- a/drivers/cpufreq/speedstep-smi.c
+++ b/drivers/cpufreq/speedstep-smi.c
@@ -264,19 +264,6 @@ static int speedstep_target(struct cpufreq_policy *policy,
 }
 
 
-/**
- * speedstep_verify - verifies a new CPUFreq policy
- * @policy: new policy
- *
- * Limit must be within speedstep_low_freq and speedstep_high_freq, with
- * at least one border included.
- */
-static int speedstep_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, &speedstep_freqs[0]);
-}
-
-
 static int speedstep_cpu_init(struct cpufreq_policy *policy)
 {
 	int result;
@@ -332,12 +319,6 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy)
 	return cpufreq_table_validate_and_show(policy, speedstep_freqs);
 }
 
-static int speedstep_cpu_exit(struct cpufreq_policy *policy)
-{
-	cpufreq_frequency_table_put_attr(policy->cpu);
-	return 0;
-}
-
 static unsigned int speedstep_get(unsigned int cpu)
 {
 	if (cpu)
@@ -356,20 +337,15 @@ static int speedstep_resume(struct cpufreq_policy *policy)
 	return result;
 }
 
-static struct freq_attr *speedstep_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver speedstep_driver = {
 	.name		= "speedstep-smi",
-	.verify		= speedstep_verify,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= speedstep_target,
 	.init		= speedstep_cpu_init,
-	.exit		= speedstep_cpu_exit,
+	.exit		= cpufreq_generic_exit,
 	.get		= speedstep_get,
 	.resume		= speedstep_resume,
-	.attr		= speedstep_attr,
+	.attr		= cpufreq_generic_attr,
 };
 
 static const struct x86_cpu_id ss_smi_ids[] = {
-- 
cgit 


From 8e08cf03a46299bc1ebf9dbd2ebe7d3093f89541 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:29 +0530
Subject: cpufreq: tegra: Use generic cpufreq routines

Most of the CPUFreq drivers do similar things in .exit() and .verify() routines
and .attr. So its better if we have generic routines for them which can be used
by cpufreq drivers then.

This patch uses these generic routines in the Tegra driver.

Cc: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/tegra-cpufreq.c | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c
index e0140779b864..c36a8e7036af 100644
--- a/drivers/cpufreq/tegra-cpufreq.c
+++ b/drivers/cpufreq/tegra-cpufreq.c
@@ -51,11 +51,6 @@ static unsigned long target_cpu_speed[NUM_CPUS];
 static DEFINE_MUTEX(tegra_cpu_lock);
 static bool is_suspended;
 
-static int tegra_verify_speed(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy, freq_table);
-}
-
 static unsigned int tegra_getspeed(unsigned int cpu)
 {
 	unsigned long rate;
@@ -237,19 +232,14 @@ static int tegra_cpu_exit(struct cpufreq_policy *policy)
 	return 0;
 }
 
-static struct freq_attr *tegra_cpufreq_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
 static struct cpufreq_driver tegra_cpufreq_driver = {
-	.verify		= tegra_verify_speed,
+	.verify		= cpufreq_generic_frequency_table_verify,
 	.target		= tegra_target,
 	.get		= tegra_getspeed,
 	.init		= tegra_cpu_init,
 	.exit		= tegra_cpu_exit,
 	.name		= "tegra",
-	.attr		= tegra_cpufreq_attr,
+	.attr		= cpufreq_generic_attr,
 };
 
 static int __init tegra_cpufreq_init(void)
-- 
cgit 


From da60ce9f2faca87013fd3cab1c3bed5183608c3d Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:30 +0530
Subject: cpufreq: call cpufreq_driver->get() after calling ->init()

Almost all drivers set policy->cur with current CPU frequency in their ->init()
part. This can be done for all of them at core level and so they wouldn't need
to do it.

This patch adds supporting code in cpufreq core for calling get() after we have
called init() for a policy.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index fc9110c9f10d..f033adf06eaf 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1042,6 +1042,14 @@ static int __cpufreq_add_dev(struct device *dev, struct subsys_interface *sif,
 		goto err_set_policy_cpu;
 	}
 
+	if (cpufreq_driver->get) {
+		policy->cur = cpufreq_driver->get(policy->cpu);
+		if (!policy->cur) {
+			pr_err("%s: ->get() failed\n", __func__);
+			goto err_get_freq;
+		}
+	}
+
 	/* related cpus should atleast have policy->cpus */
 	cpumask_or(policy->related_cpus, policy->related_cpus, policy->cpus);
 
@@ -1096,6 +1104,9 @@ err_out_unregister:
 		per_cpu(cpufreq_cpu_data, j) = NULL;
 	write_unlock_irqrestore(&cpufreq_driver_lock, flags);
 
+err_get_freq:
+	if (cpufreq_driver->exit)
+		cpufreq_driver->exit(policy);
 err_set_policy_cpu:
 	cpufreq_policy_free(policy);
 nomem_out:
-- 
cgit 


From 2f75db781b88df2ee4bd62254efbb2768e3619bd Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:31 +0530
Subject: cpufreq: acpi-cpufreq: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/acpi-cpufreq.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 94a5a1d1eec9..a8dac7b53042 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -842,7 +842,6 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
 		break;
 	case ACPI_ADR_SPACE_FIXED_HARDWARE:
 		acpi_cpufreq_driver.get = get_cur_freq_on_cpu;
-		policy->cur = get_cur_freq_on_cpu(cpu);
 		break;
 	default:
 		break;
-- 
cgit 


From e4c8afe3a06c682e215c3e38240126b652fa98d0 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:32 +0530
Subject: cpufreq: arm_big_little: don't initialize part of policy is set by
 core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/arm_big_little.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index 132c966471c3..f7717efdd28f 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -171,8 +171,6 @@ static int bL_cpufreq_init(struct cpufreq_policy *policy)
 	else
 		policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
 
-	policy->cur = bL_cpufreq_get(policy->cpu);
-
 	cpumask_copy(policy->cpus, topology_core_cpumask(policy->cpu));
 
 	dev_info(cpu_dev, "%s: CPU %d initialized\n", __func__, policy->cpu);
-- 
cgit 


From 017189b51e0eecd58cf4f65f6f16d59dae6c1368 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:33 +0530
Subject: cpufreq: at32ap: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/at32ap-cpufreq.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/cpufreq/at32ap-cpufreq.c b/drivers/cpufreq/at32ap-cpufreq.c
index 788f7e77565d..7439deddd5cf 100644
--- a/drivers/cpufreq/at32ap-cpufreq.c
+++ b/drivers/cpufreq/at32ap-cpufreq.c
@@ -77,7 +77,7 @@ static int at32_set_target(struct cpufreq_policy *policy,
 
 static int __init at32_cpufreq_driver_init(struct cpufreq_policy *policy)
 {
-	unsigned int frequency, rate;
+	unsigned int frequency, rate, min_freq;
 	int retval, steps, i;
 
 	if (policy->cpu != 0)
@@ -90,12 +90,9 @@ static int __init at32_cpufreq_driver_init(struct cpufreq_policy *policy)
 		goto out_err;
 	}
 
-	policy->cpuinfo.min_freq = (clk_round_rate(cpuclk, 1) + 500) / 1000;
-	policy->cpuinfo.max_freq = (clk_round_rate(cpuclk, ~0UL) + 500) / 1000;
+	min_freq = (clk_round_rate(cpuclk, 1) + 500) / 1000;
+	frequency = (clk_round_rate(cpuclk, ~0UL) + 500) / 1000;
 	policy->cpuinfo.transition_latency = 0;
-	policy->cur = at32_get_speed(0);
-	policy->min = policy->cpuinfo.min_freq;
-	policy->max = policy->cpuinfo.max_freq;
 
 	/*
 	 * AVR32 CPU frequency rate scales in power of two between maximum and
@@ -104,7 +101,7 @@ static int __init at32_cpufreq_driver_init(struct cpufreq_policy *policy)
 	 * Further validate that the frequency is usable, and append it to the
 	 * frequency table.
 	 */
-	steps = fls(policy->cpuinfo.max_freq / policy->cpuinfo.min_freq) + 1;
+	steps = fls(frequency / min_freq) + 1;
 	freq_table = kzalloc(steps * sizeof(struct cpufreq_frequency_table),
 			GFP_KERNEL);
 	if (!freq_table) {
@@ -112,7 +109,6 @@ static int __init at32_cpufreq_driver_init(struct cpufreq_policy *policy)
 		goto out_err_put_clk;
 	}
 
-	frequency = policy->cpuinfo.max_freq;
 	for (i = 0; i < (steps - 1); i++) {
 		rate = clk_round_rate(cpuclk, frequency * 1000) / 1000;
 
-- 
cgit 


From 49ad1eabb6b46bc9d5b4f6c21bf0a555f35905d5 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:34 +0530
Subject: cpufreq: blackfin: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Cc: Steven Miao <realmz6@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/blackfin-cpufreq.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/cpufreq/blackfin-cpufreq.c b/drivers/cpufreq/blackfin-cpufreq.c
index 48888cf23bba..0bc9e8c2c79b 100644
--- a/drivers/cpufreq/blackfin-cpufreq.c
+++ b/drivers/cpufreq/blackfin-cpufreq.c
@@ -204,7 +204,6 @@ static int __bfin_cpu_init(struct cpufreq_policy *policy)
 
 	policy->cpuinfo.transition_latency = 50000; /* 50us assumed */
 
-	policy->cur = cclk;
 	return cpufreq_table_validate_and_show(policy, bfin_freq_table);
 }
 
-- 
cgit 


From 179b889f7c5e6221a9fbf60cf4ef5e55be45cf34 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:35 +0530
Subject: cpufreq: cpu0: don't initialize part of policy set by core too

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq-cpu0.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
index c4a7514b1e15..3c09a265903f 100644
--- a/drivers/cpufreq/cpufreq-cpu0.c
+++ b/drivers/cpufreq/cpufreq-cpu0.c
@@ -131,7 +131,6 @@ static int cpu0_cpufreq_init(struct cpufreq_policy *policy)
 	}
 
 	policy->cpuinfo.transition_latency = transition_latency;
-	policy->cur = clk_get_rate(cpu_clk) / 1000;
 
 	/*
 	 * The driver only supports the SMP configuartion where all processors
-- 
cgit 


From 43d864066fdb55fe6f914e07862d600d9c48e455 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:36 +0530
Subject: cpufreq: nforce2: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq-nforce2.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/cpufreq/cpufreq-nforce2.c b/drivers/cpufreq/cpufreq-nforce2.c
index 56c964c16a66..a05b876f375e 100644
--- a/drivers/cpufreq/cpufreq-nforce2.c
+++ b/drivers/cpufreq/cpufreq-nforce2.c
@@ -360,7 +360,6 @@ static int nforce2_cpu_init(struct cpufreq_policy *policy)
 	policy->min = policy->cpuinfo.min_freq = min_fsb * fid * 100;
 	policy->max = policy->cpuinfo.max_freq = max_fsb * fid * 100;
 	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
-	policy->cur = nforce2_get(policy->cpu);
 
 	return 0;
 }
-- 
cgit 


From 0a7485e19d7dded0c8cd2e309b5ff72b6e8ab3ce Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:37 +0530
Subject: cpufreq: cris: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cris-artpec3-cpufreq.c | 1 -
 drivers/cpufreq/cris-etraxfs-cpufreq.c | 1 -
 2 files changed, 2 deletions(-)

diff --git a/drivers/cpufreq/cris-artpec3-cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c
index d26f4e45dabd..4d88e4fa2ad4 100644
--- a/drivers/cpufreq/cris-artpec3-cpufreq.c
+++ b/drivers/cpufreq/cris-artpec3-cpufreq.c
@@ -73,7 +73,6 @@ static int cris_freq_cpu_init(struct cpufreq_policy *policy)
 {
 	/* cpuinfo and default policy values */
 	policy->cpuinfo.transition_latency = 1000000; /* 1ms */
-	policy->cur = cris_freq_get_cpu_frequency(0);
 
 	return cpufreq_table_validate_and_show(policy, cris_freq_table);
 }
diff --git a/drivers/cpufreq/cris-etraxfs-cpufreq.c b/drivers/cpufreq/cris-etraxfs-cpufreq.c
index d384e638fdbb..f7d2d49f7c07 100644
--- a/drivers/cpufreq/cris-etraxfs-cpufreq.c
+++ b/drivers/cpufreq/cris-etraxfs-cpufreq.c
@@ -72,7 +72,6 @@ static int cris_freq_cpu_init(struct cpufreq_policy *policy)
 {
 	/* cpuinfo and default policy values */
 	policy->cpuinfo.transition_latency = 1000000;	/* 1ms */
-	policy->cur = cris_freq_get_cpu_frequency(0);
 
 	return cpufreq_table_validate_and_show(policy, cris_freq_table);
 }
-- 
cgit 


From b31c95d72d40b5b0cac318d17c69c69582b55a98 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:38 +0530
Subject: cpufreq: davinci: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Cc: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/davinci-cpufreq.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/cpufreq/davinci-cpufreq.c b/drivers/cpufreq/davinci-cpufreq.c
index f2286423665e..55cf09425db2 100644
--- a/drivers/cpufreq/davinci-cpufreq.c
+++ b/drivers/cpufreq/davinci-cpufreq.c
@@ -136,8 +136,6 @@ static int davinci_cpu_init(struct cpufreq_policy *policy)
 			return result;
 	}
 
-	policy->cur = davinci_getspeed(0);
-
 	result = cpufreq_table_validate_and_show(policy, freq_table);
 	if (result) {
 		pr_err("%s: cpufreq_table_validate_and_show() failed",
-- 
cgit 


From ceb7682ee313e353ea34fec80727fe7f986f0be1 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:39 +0530
Subject: cpufreq: dbx500: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/dbx500-cpufreq.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/cpufreq/dbx500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c
index 2d7063785002..ae1aa60b138a 100644
--- a/drivers/cpufreq/dbx500-cpufreq.c
+++ b/drivers/cpufreq/dbx500-cpufreq.c
@@ -83,11 +83,6 @@ static int dbx500_cpufreq_init(struct cpufreq_policy *policy)
 		return res;
 	}
 
-	policy->min = policy->cpuinfo.min_freq;
-	policy->max = policy->cpuinfo.max_freq;
-	policy->cur = dbx500_cpufreq_getspeed(policy->cpu);
-	policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
-
 	/*
 	 * FIXME : Need to take time measurement across the target()
 	 *	   function with no/some/all drivers in the notification
-- 
cgit 


From 18bb6de7c475f4a2299b35d7f34d72be10c71466 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:40 +0530
Subject: cpufreq: e_powersaver: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/e_powersaver.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/cpufreq/e_powersaver.c b/drivers/cpufreq/e_powersaver.c
index a8cbbd05436f..2c11ce3c67bd 100644
--- a/drivers/cpufreq/e_powersaver.c
+++ b/drivers/cpufreq/e_powersaver.c
@@ -395,7 +395,6 @@ static int eps_cpu_init(struct cpufreq_policy *policy)
 	}
 
 	policy->cpuinfo.transition_latency = 140000; /* 844mV -> 700mV in ns */
-	policy->cur = fsb * current_multiplier;
 
 	ret = cpufreq_table_validate_and_show(policy, &centaur->freq_table[0]);
 	if (ret) {
-- 
cgit 


From daaf2a46c5f77120ce3cb92fb548972ee5db74bc Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:41 +0530
Subject: cpufreq: elanfreq: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/elanfreq.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/cpufreq/elanfreq.c b/drivers/cpufreq/elanfreq.c
index fe7053cd68af..d91a645a27ae 100644
--- a/drivers/cpufreq/elanfreq.c
+++ b/drivers/cpufreq/elanfreq.c
@@ -207,7 +207,6 @@ static int elanfreq_cpu_init(struct cpufreq_policy *policy)
 
 	/* cpuinfo and default policy values */
 	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
-	policy->cur = elanfreq_get_cpu_frequency(0);
 
 	return cpufreq_table_validate_and_show(policy, elanfreq_table);
 }
-- 
cgit 


From 77fa10501861a141492a5cca6a62af14a7a5b2dc Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:42 +0530
Subject: cpufreq: exynos: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-By: Amit Daniel Kachhap <amit.daniel@samsung.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/exynos-cpufreq.c     | 2 --
 drivers/cpufreq/exynos5440-cpufreq.c | 1 -
 2 files changed, 3 deletions(-)

diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index 08338d42c77b..5244086bb9ca 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -241,8 +241,6 @@ static struct notifier_block exynos_cpufreq_nb = {
 
 static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
 {
-	policy->cur = policy->min = policy->max = exynos_getspeed(policy->cpu);
-
 	/* set the transition latency value */
 	policy->cpuinfo.transition_latency = 100000;
 
diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c
index bce6f7442aa5..9b7fdec19622 100644
--- a/drivers/cpufreq/exynos5440-cpufreq.c
+++ b/drivers/cpufreq/exynos5440-cpufreq.c
@@ -326,7 +326,6 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
 		return ret;
 	}
 
-	policy->cur = dvfs_info->cur_frequency;
 	policy->cpuinfo.transition_latency = dvfs_info->latency;
 	cpumask_setall(policy->cpus);
 
-- 
cgit 


From cd59064372bef595709a85ae18fae159803aa791 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:43 +0530
Subject: cpufreq: gx: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/gx-suspmod.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/cpufreq/gx-suspmod.c b/drivers/cpufreq/gx-suspmod.c
index 70442c7b5e71..d83e8266a58e 100644
--- a/drivers/cpufreq/gx-suspmod.c
+++ b/drivers/cpufreq/gx-suspmod.c
@@ -401,7 +401,7 @@ static int cpufreq_gx_target(struct cpufreq_policy *policy,
 
 static int cpufreq_gx_cpu_init(struct cpufreq_policy *policy)
 {
-	unsigned int maxfreq, curfreq;
+	unsigned int maxfreq;
 
 	if (!policy || policy->cpu != 0)
 		return -ENODEV;
@@ -415,10 +415,8 @@ static int cpufreq_gx_cpu_init(struct cpufreq_policy *policy)
 		maxfreq = 30000 * gx_freq_mult[getCx86(CX86_DIR1) & 0x0f];
 
 	stock_freq = maxfreq;
-	curfreq = gx_get_cpuspeed(0);
 
 	pr_debug("cpu max frequency is %d.\n", maxfreq);
-	pr_debug("cpu current frequency is %dkHz.\n", curfreq);
 
 	/* setup basic struct for cpufreq API */
 	policy->cpu = 0;
@@ -428,7 +426,6 @@ static int cpufreq_gx_cpu_init(struct cpufreq_policy *policy)
 	else
 		policy->min = maxfreq / POLICY_MIN_DIV;
 	policy->max = maxfreq;
-	policy->cur = curfreq;
 	policy->cpuinfo.min_freq = maxfreq / max_duration;
 	policy->cpuinfo.max_freq = maxfreq;
 	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
-- 
cgit 


From 34a2548890ccccd9c9a3c7ad3d610ad133a6c04a Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:44 +0530
Subject: cpufreq: ia64-acpi: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/ia64-acpi-cpufreq.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/cpufreq/ia64-acpi-cpufreq.c b/drivers/cpufreq/ia64-acpi-cpufreq.c
index b958bdb17f55..90c6598415fd 100644
--- a/drivers/cpufreq/ia64-acpi-cpufreq.c
+++ b/drivers/cpufreq/ia64-acpi-cpufreq.c
@@ -305,7 +305,6 @@ acpi_cpufreq_cpu_init (
 			    data->acpi_data.states[i].transition_latency * 1000;
 		}
 	}
-	policy->cur = processor_get_freq(data, policy->cpu);
 
 	/* table init */
 	for (i = 0; i <= data->acpi_data.state_count; i++)
-- 
cgit 


From 5e62178cb9088edc002c848912f8610b159d57a8 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:45 +0530
Subject: cpufreq: imx6q: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/imx6q-cpufreq.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index d83965737462..9d22dfa7a2be 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -163,7 +163,6 @@ static int imx6q_cpufreq_init(struct cpufreq_policy *policy)
 	}
 
 	policy->cpuinfo.transition_latency = transition_latency;
-	policy->cur = clk_get_rate(arm_clk) / 1000;
 	cpumask_setall(policy->cpus);
 
 	return 0;
-- 
cgit 


From ab537016e86467bd2b9a5d091e24ca563d0d7dc6 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:46 +0530
Subject: cpufreq: integrator: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init(). And so we don't need to set policy->cur from driver anymore.

Over that it sets policy->min and max correctly. They were earlier set to
current frequency of CPU but they should be set to max and min freq of cpu.

Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/integrator-cpufreq.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/cpufreq/integrator-cpufreq.c b/drivers/cpufreq/integrator-cpufreq.c
index 8152a9bb7e2c..babf3e40e9fa 100644
--- a/drivers/cpufreq/integrator-cpufreq.c
+++ b/drivers/cpufreq/integrator-cpufreq.c
@@ -181,10 +181,9 @@ static int integrator_cpufreq_init(struct cpufreq_policy *policy)
 {
 
 	/* set default policy and cpuinfo */
-	policy->cpuinfo.max_freq = 160000;
-	policy->cpuinfo.min_freq = 12000;
+	policy->max = policy->cpuinfo.max_freq = 160000;
+	policy->min = policy->cpuinfo.min_freq = 12000;
 	policy->cpuinfo.transition_latency = 1000000; /* 1 ms, assumed */
-	policy->cur = policy->min = policy->max = integrator_get(policy->cpu);
 
 	return 0;
 }
-- 
cgit 


From 1cdf547790db07db200516ebd0d427e20eb37f69 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:47 +0530
Subject: cpufreq: kirkwood: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/kirkwood-cpufreq.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c
index 1a4e4f4420a7..dc434c44acee 100644
--- a/drivers/cpufreq/kirkwood-cpufreq.c
+++ b/drivers/cpufreq/kirkwood-cpufreq.c
@@ -122,7 +122,6 @@ static int kirkwood_cpufreq_cpu_init(struct cpufreq_policy *policy)
 {
 	/* cpuinfo and default policy values */
 	policy->cpuinfo.transition_latency = 5000; /* 5uS */
-	policy->cur = kirkwood_cpufreq_get_cpu_frequency(0);
 
 	return cpufreq_table_validate_and_show(policy, kirkwood_freq_table);
 }
-- 
cgit 


From b1123ea3c3e4874c03daaf8b742f2a12ada5d548 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:48 +0530
Subject: cpufreq: longhaul: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/longhaul.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/cpufreq/longhaul.c b/drivers/cpufreq/longhaul.c
index 57d7b02f863a..14df4974fb45 100644
--- a/drivers/cpufreq/longhaul.c
+++ b/drivers/cpufreq/longhaul.c
@@ -913,7 +913,6 @@ static int longhaul_cpu_init(struct cpufreq_policy *policy)
 		longhaul_setup_voltagescaling();
 
 	policy->cpuinfo.transition_latency = 200000;	/* nsec */
-	policy->cur = calc_speed(longhaul_get_cpu_mult());
 
 	return cpufreq_table_validate_and_show(policy, longhaul_table);
 }
-- 
cgit 


From adbed6e8473db90b18ef1cc3bf6f7f87e6cc46b7 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:49 +0530
Subject: cpufreq: loongson2: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Cc: John Crispin <blogic@openwrt.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/loongson2_cpufreq.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c
index ed7fbe23437e..dd4f3e46f724 100644
--- a/drivers/cpufreq/loongson2_cpufreq.c
+++ b/drivers/cpufreq/loongson2_cpufreq.c
@@ -131,8 +131,6 @@ static int loongson2_cpufreq_cpu_init(struct cpufreq_policy *policy)
 		return ret;
 	}
 
-	policy->cur = loongson2_cpufreq_get(policy->cpu);
-
 	return cpufreq_table_validate_and_show(policy,
 					    &loongson2_clockmod_table[0]);
 }
-- 
cgit 


From d31a4a9ae0d09a56154c7408406efd2ffbc23985 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:50 +0530
Subject: cpufreq: maple: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Cc: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/maple-cpufreq.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/cpufreq/maple-cpufreq.c b/drivers/cpufreq/maple-cpufreq.c
index b23d1d8ab9cc..1c0cec1518ff 100644
--- a/drivers/cpufreq/maple-cpufreq.c
+++ b/drivers/cpufreq/maple-cpufreq.c
@@ -166,7 +166,6 @@ static unsigned int maple_cpufreq_get_speed(unsigned int cpu)
 static int maple_cpufreq_cpu_init(struct cpufreq_policy *policy)
 {
 	policy->cpuinfo.transition_latency = 12000;
-	policy->cur = maple_cpu_freqs[maple_scom_query_freq()].frequency;
 	/* secondary CPUs are tied to the primary one by the
 	 * cpufreq core if in the secondary policy we tell it that
 	 * it actually must be one policy together with all others. */
-- 
cgit 


From 1857a25cd3f0827f413be3328490dc5dc56e0f10 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:51 +0530
Subject: cpufreq: omap: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/omap-cpufreq.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index 48020b5b6a99..a8c3f90571ea 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -171,8 +171,6 @@ static int omap_cpu_init(struct cpufreq_policy *policy)
 		goto fail_ck;
 	}
 
-	policy->cur = omap_getspeed(policy->cpu);
-
 	if (!freq_table)
 		result = opp_init_cpufreq_table(mpu_dev, &freq_table);
 
@@ -188,8 +186,6 @@ static int omap_cpu_init(struct cpufreq_policy *policy)
 	if (result)
 		goto fail_table;
 
-	policy->cur = omap_getspeed(policy->cpu);
-
 	/*
 	 * On OMAP SMP configuartion, both processors share the voltage
 	 * and clock. So both CPUs needs to be scaled together and hence
-- 
cgit 


From c8fb6e9a906c97d86c9d7dda20e0141f952db678 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:52 +0530
Subject: cpufreq: p4: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/p4-clockmod.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c
index 4fe6d4cac74c..6164c1cca504 100644
--- a/drivers/cpufreq/p4-clockmod.c
+++ b/drivers/cpufreq/p4-clockmod.c
@@ -230,7 +230,6 @@ static int cpufreq_p4_cpu_init(struct cpufreq_policy *policy)
 	/* the transition latency is set to be 1 higher than the maximum
 	 * transition latency of the ondemand governor */
 	policy->cpuinfo.transition_latency = 10000001;
-	policy->cur = stock_freq;
 
 	return cpufreq_table_validate_and_show(policy, &p4clockmod_table[0]);
 }
-- 
cgit 


From 6b67ca322d409003c29e119f8c8beeecd5785e20 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:53 +0530
Subject: cpufreq: pcc: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/pcc-cpufreq.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/cpufreq/pcc-cpufreq.c b/drivers/cpufreq/pcc-cpufreq.c
index 78787e965e0b..ef663474a643 100644
--- a/drivers/cpufreq/pcc-cpufreq.c
+++ b/drivers/cpufreq/pcc-cpufreq.c
@@ -559,13 +559,6 @@ static int pcc_cpufreq_cpu_init(struct cpufreq_policy *policy)
 		ioread32(&pcch_hdr->nominal) * 1000;
 	policy->min = policy->cpuinfo.min_freq =
 		ioread32(&pcch_hdr->minimum_frequency) * 1000;
-	policy->cur = pcc_get_freq(cpu);
-
-	if (!policy->cur) {
-		pr_debug("init: Unable to get current CPU frequency\n");
-		result = -EINVAL;
-		goto out;
-	}
 
 	pr_debug("init: policy->max is %d, policy->min is %d\n",
 		policy->max, policy->min);
-- 
cgit 


From cb8bd497a61adea2ccb937e3181408fb95c78b52 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:54 +0530
Subject: cpufreq: pmac: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/pmac32-cpufreq.c | 1 -
 drivers/cpufreq/pmac64-cpufreq.c | 1 -
 2 files changed, 2 deletions(-)

diff --git a/drivers/cpufreq/pmac32-cpufreq.c b/drivers/cpufreq/pmac32-cpufreq.c
index 8715ab99d80e..672b7f4a7de5 100644
--- a/drivers/cpufreq/pmac32-cpufreq.c
+++ b/drivers/cpufreq/pmac32-cpufreq.c
@@ -396,7 +396,6 @@ static int pmac_cpufreq_cpu_init(struct cpufreq_policy *policy)
 		return -ENODEV;
 
 	policy->cpuinfo.transition_latency	= transition_latency;
-	policy->cur = cur_freq;
 
 	return cpufreq_table_validate_and_show(policy, pmac_cpu_freqs);
 }
diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c
index e853b852b34b..79e40c91378e 100644
--- a/drivers/cpufreq/pmac64-cpufreq.c
+++ b/drivers/cpufreq/pmac64-cpufreq.c
@@ -348,7 +348,6 @@ static unsigned int g5_cpufreq_get_speed(unsigned int cpu)
 static int g5_cpufreq_cpu_init(struct cpufreq_policy *policy)
 {
 	policy->cpuinfo.transition_latency = transition_latency;
-	policy->cur = g5_cpu_freqs[g5_query_freq()].frequency;
 	/* secondary CPUs are tied to the primary one by the
 	 * cpufreq core if in the secondary policy we tell it that
 	 * it actually must be one policy together with all others. */
-- 
cgit 


From eaf8120e8f9c4efc71475b1e08b8e2d3e421e6ca Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:55 +0530
Subject: cpufreq: powernow: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/powernow-k6.c | 1 -
 drivers/cpufreq/powernow-k7.c | 2 --
 drivers/cpufreq/powernow-k8.c | 3 ---
 3 files changed, 6 deletions(-)

diff --git a/drivers/cpufreq/powernow-k6.c b/drivers/cpufreq/powernow-k6.c
index ff05d284e48e..eda17024a34a 100644
--- a/drivers/cpufreq/powernow-k6.c
+++ b/drivers/cpufreq/powernow-k6.c
@@ -151,7 +151,6 @@ static int powernow_k6_cpu_init(struct cpufreq_policy *policy)
 
 	/* cpuinfo and default policy values */
 	policy->cpuinfo.transition_latency = 200000;
-	policy->cur = busfreq * max_multiplier;
 
 	return cpufreq_table_validate_and_show(policy, clock_ratio);
 }
diff --git a/drivers/cpufreq/powernow-k7.c b/drivers/cpufreq/powernow-k7.c
index 14cd98f5a096..44d345bad6fb 100644
--- a/drivers/cpufreq/powernow-k7.c
+++ b/drivers/cpufreq/powernow-k7.c
@@ -673,8 +673,6 @@ static int powernow_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency =
 		cpufreq_scale(2000000UL, fsb, latency);
 
-	policy->cur = powernow_get(0);
-
 	return cpufreq_table_validate_and_show(policy, powernow_table);
 }
 
diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c
index 1e6f68af87a4..298beb742ebb 100644
--- a/drivers/cpufreq/powernow-k8.c
+++ b/drivers/cpufreq/powernow-k8.c
@@ -1141,9 +1141,6 @@ static int powernowk8_cpu_init(struct cpufreq_policy *pol)
 	cpumask_copy(pol->cpus, cpu_core_mask(pol->cpu));
 	data->available_cores = pol->cpus;
 
-	pol->cur = find_khz_freq_from_fid(data->currfid);
-	pr_debug("policy current frequency %d kHz\n", pol->cur);
-
 	/* min/max the cpu is capable of */
 	if (cpufreq_table_validate_and_show(pol, data->powernow_table)) {
 		printk(KERN_ERR FW_BUG PFX "invalid powernow_table\n");
-- 
cgit 


From 0bcc9d9a3e680ebf7717f1aa8caeee45048ebae3 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:56 +0530
Subject: cpufreq: ppc: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/ppc-corenet-cpufreq.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/cpufreq/ppc-corenet-cpufreq.c b/drivers/cpufreq/ppc-corenet-cpufreq.c
index befd489314e8..a0f562ca292d 100644
--- a/drivers/cpufreq/ppc-corenet-cpufreq.c
+++ b/drivers/cpufreq/ppc-corenet-cpufreq.c
@@ -217,8 +217,6 @@ static int corenet_cpufreq_cpu_init(struct cpufreq_policy *policy)
 		per_cpu(cpu_data, i) = data;
 
 	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
-	policy->cur = corenet_cpufreq_get_speed(policy->cpu);
-
 	of_node_put(np);
 
 	return 0;
-- 
cgit 


From 200ea8e2c28c1cca4f3faf1e15da78539ecaf835 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:57 +0530
Subject: cpufreq: pxa: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Cc: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/pxa2xx-cpufreq.c | 2 --
 drivers/cpufreq/pxa3xx-cpufreq.c | 7 +++----
 2 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/cpufreq/pxa2xx-cpufreq.c b/drivers/cpufreq/pxa2xx-cpufreq.c
index 82905fe0041b..29aca574317b 100644
--- a/drivers/cpufreq/pxa2xx-cpufreq.c
+++ b/drivers/cpufreq/pxa2xx-cpufreq.c
@@ -397,8 +397,6 @@ static int pxa_cpufreq_init(struct cpufreq_policy *policy)
 
 	/* set default policy and cpuinfo */
 	policy->cpuinfo.transition_latency = 1000; /* FIXME: 1 ms, assumed */
-	policy->cur = get_clk_frequency_khz(0);	   /* current freq */
-	policy->min = policy->max = policy->cur;
 
 	/* Generate pxa25x the run cpufreq_frequency_table struct */
 	for (i = 0; i < NUM_PXA25x_RUN_FREQS; i++) {
diff --git a/drivers/cpufreq/pxa3xx-cpufreq.c b/drivers/cpufreq/pxa3xx-cpufreq.c
index ae3ac08a7b23..47fbee49d6e5 100644
--- a/drivers/cpufreq/pxa3xx-cpufreq.c
+++ b/drivers/cpufreq/pxa3xx-cpufreq.c
@@ -201,11 +201,10 @@ static int pxa3xx_cpufreq_init(struct cpufreq_policy *policy)
 	int ret = -EINVAL;
 
 	/* set default policy and cpuinfo */
-	policy->cpuinfo.min_freq = 104000;
-	policy->cpuinfo.max_freq = (cpu_is_pxa320()) ? 806000 : 624000;
+	policy->min = policy->cpuinfo.min_freq = 104000;
+	policy->max = policy->cpuinfo.max_freq =
+		(cpu_is_pxa320()) ? 806000 : 624000;
 	policy->cpuinfo.transition_latency = 1000; /* FIXME: 1 ms, assumed */
-	policy->max = pxa3xx_get_clk_frequency_khz(0);
-	policy->cur = policy->min = policy->max;
 
 	if (cpu_is_pxa300() || cpu_is_pxa310())
 		ret = setup_freqs_table(policy, pxa300_freqs,
-- 
cgit 


From 0ecc402e0f1f8cc55000c75cb216615d0bee62a6 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:58 +0530
Subject: cpufreq: s3c: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Cc: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/s3c2416-cpufreq.c | 2 --
 drivers/cpufreq/s3c24xx-cpufreq.c | 5 -----
 drivers/cpufreq/s3c64xx-cpufreq.c | 2 --
 3 files changed, 9 deletions(-)

diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c
index 8c57f10b2ff6..22c4c2d837bd 100644
--- a/drivers/cpufreq/s3c2416-cpufreq.c
+++ b/drivers/cpufreq/s3c2416-cpufreq.c
@@ -476,8 +476,6 @@ static int __init s3c2416_cpufreq_driver_init(struct cpufreq_policy *policy)
 		freq++;
 	}
 
-	policy->cur = clk_get_rate(s3c_freq->armclk) / 1000;
-
 	/* Datasheet says PLL stabalisation time must be at least 300us,
 	 * so but add some fudge. (reference in LOCKCON0 register description)
 	 */
diff --git a/drivers/cpufreq/s3c24xx-cpufreq.c b/drivers/cpufreq/s3c24xx-cpufreq.c
index 027dec1cf09a..e0fbaefc69a7 100644
--- a/drivers/cpufreq/s3c24xx-cpufreq.c
+++ b/drivers/cpufreq/s3c24xx-cpufreq.c
@@ -378,11 +378,6 @@ static int s3c_cpufreq_init(struct cpufreq_policy *policy)
 	if (policy->cpu != 0)
 		return -EINVAL;
 
-	policy->cur = s3c_cpufreq_get(0);
-	policy->min = policy->cpuinfo.min_freq = 0;
-	policy->max = policy->cpuinfo.max_freq = cpu_cur.info->max.fclk / 1000;
-	policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
-
 	/* feed the latency information from the cpu driver */
 	policy->cpuinfo.transition_latency = cpu_cur.info->latency;
 
diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c
index 99fbc49af958..a66cfa3e54a1 100644
--- a/drivers/cpufreq/s3c64xx-cpufreq.c
+++ b/drivers/cpufreq/s3c64xx-cpufreq.c
@@ -235,8 +235,6 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy)
 		freq++;
 	}
 
-	policy->cur = clk_get_rate(armclk) / 1000;
-
 	/* Datasheet says PLL stabalisation time (if we were to use
 	 * the PLLs, which we don't currently) is ~300us worst case,
 	 * but add some fudge.
-- 
cgit 


From da9cbb9e284bde07ad4c0506aa4cb8ae6a6973f6 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:28:59 +0530
Subject: cpufreq: s5pv210: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Cc: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/s5pv210-cpufreq.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/cpufreq/s5pv210-cpufreq.c b/drivers/cpufreq/s5pv210-cpufreq.c
index 0eafc528f131..30d9bb7a393e 100644
--- a/drivers/cpufreq/s5pv210-cpufreq.c
+++ b/drivers/cpufreq/s5pv210-cpufreq.c
@@ -543,8 +543,6 @@ static int __init s5pv210_cpu_init(struct cpufreq_policy *policy)
 	s5pv210_dram_conf[1].refresh = (__raw_readl(S5P_VA_DMC1 + 0x30) * 1000);
 	s5pv210_dram_conf[1].freq = clk_get_rate(dmc1_clk);
 
-	policy->cur = policy->min = policy->max = s5pv210_getspeed(0);
-
 	policy->cpuinfo.transition_latency = 40000;
 
 	return cpufreq_table_validate_and_show(policy, s5pv210_freq_table);
-- 
cgit 


From b256888fd0c3d5cd109798a0d32d47f665339695 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:00 +0530
Subject: cpufreq: sa11x0: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/sa1100-cpufreq.c | 1 -
 drivers/cpufreq/sa1110-cpufreq.c | 1 -
 2 files changed, 2 deletions(-)

diff --git a/drivers/cpufreq/sa1100-cpufreq.c b/drivers/cpufreq/sa1100-cpufreq.c
index 80a4fde0021f..a1d1bb72bac4 100644
--- a/drivers/cpufreq/sa1100-cpufreq.c
+++ b/drivers/cpufreq/sa1100-cpufreq.c
@@ -220,7 +220,6 @@ static int __init sa1100_cpu_init(struct cpufreq_policy *policy)
 {
 	if (policy->cpu != 0)
 		return -EINVAL;
-	policy->cur = sa11x0_getspeed(0);
 	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
 
 	return cpufreq_table_validate_and_show(policy, sa11x0_freq_table);
diff --git a/drivers/cpufreq/sa1110-cpufreq.c b/drivers/cpufreq/sa1110-cpufreq.c
index a38d904d168e..9da940e66b7e 100644
--- a/drivers/cpufreq/sa1110-cpufreq.c
+++ b/drivers/cpufreq/sa1110-cpufreq.c
@@ -334,7 +334,6 @@ static int __init sa1110_cpu_init(struct cpufreq_policy *policy)
 {
 	if (policy->cpu != 0)
 		return -EINVAL;
-	policy->cur = sa11x0_getspeed(0);
 	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
 
 	return cpufreq_table_validate_and_show(policy, sa11x0_freq_table);
-- 
cgit 


From df38a23b7e51e9d8940714a39cf122966d55d882 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:01 +0530
Subject: cpufreq: sc520_freq: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/sc520_freq.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/cpufreq/sc520_freq.c b/drivers/cpufreq/sc520_freq.c
index 85562251f99f..9047ab1ca014 100644
--- a/drivers/cpufreq/sc520_freq.c
+++ b/drivers/cpufreq/sc520_freq.c
@@ -109,7 +109,6 @@ static int sc520_freq_cpu_init(struct cpufreq_policy *policy)
 
 	/* cpuinfo and default policy values */
 	policy->cpuinfo.transition_latency = 1000000; /* 1ms */
-	policy->cur = sc520_freq_get_cpu_frequency(0);
 
 	return cpufreq_table_validate_and_show(policy, sc520_freq_table);
 }
-- 
cgit 


From 0ff12b6f487cbf01c47c551f8614f06c0dfd6a7a Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:02 +0530
Subject: cpufreq: sh: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/sh-cpufreq.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/cpufreq/sh-cpufreq.c b/drivers/cpufreq/sh-cpufreq.c
index c681b86932c5..387af12503a6 100644
--- a/drivers/cpufreq/sh-cpufreq.c
+++ b/drivers/cpufreq/sh-cpufreq.c
@@ -111,8 +111,6 @@ static int sh_cpufreq_cpu_init(struct cpufreq_policy *policy)
 		return PTR_ERR(cpuclk);
 	}
 
-	policy->cur = sh_cpufreq_get(cpu);
-
 	freq_table = cpuclk->nr_freqs ? cpuclk->freq_table : NULL;
 	if (freq_table) {
 		int result;
-- 
cgit 


From 1812136ec9adca227b185305b538a8a2065038d2 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:03 +0530
Subject: cpufreq: spear: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/spear-cpufreq.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/cpufreq/spear-cpufreq.c b/drivers/cpufreq/spear-cpufreq.c
index e9657e33b654..aacdb615e4ed 100644
--- a/drivers/cpufreq/spear-cpufreq.c
+++ b/drivers/cpufreq/spear-cpufreq.c
@@ -180,8 +180,6 @@ static int spear_cpufreq_init(struct cpufreq_policy *policy)
 	}
 
 	policy->cpuinfo.transition_latency = spear_cpufreq.transition_latency;
-	policy->cur = spear_cpufreq_get(0);
-
 	cpumask_setall(policy->cpus);
 
 	return 0;
-- 
cgit 


From 4b15768325afe81057e3e71ae8b896d5ea657c30 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:04 +0530
Subject: cpufreq: speedstep: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/speedstep-centrino.c |  5 -----
 drivers/cpufreq/speedstep-ich.c      | 15 +--------------
 drivers/cpufreq/speedstep-smi.c      | 13 -------------
 3 files changed, 1 insertion(+), 32 deletions(-)

diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c
index c7c14ae1935f..6b882c7b3219 100644
--- a/drivers/cpufreq/speedstep-centrino.c
+++ b/drivers/cpufreq/speedstep-centrino.c
@@ -343,7 +343,6 @@ static unsigned int get_cur_freq(unsigned int cpu)
 static int centrino_cpu_init(struct cpufreq_policy *policy)
 {
 	struct cpuinfo_x86 *cpu = &cpu_data(policy->cpu);
-	unsigned freq;
 	unsigned l, h;
 	int i;
 
@@ -394,12 +393,8 @@ static int centrino_cpu_init(struct cpufreq_policy *policy)
 		}
 	}
 
-	freq = get_cur_freq(policy->cpu);
 	policy->cpuinfo.transition_latency = 10000;
 						/* 10uS transition latency */
-	policy->cur = freq;
-
-	pr_debug("centrino_cpu_init: cur=%dkHz\n", policy->cur);
 
 	return cpufreq_table_validate_and_show(policy,
 		per_cpu(centrino_model, policy->cpu)->op_points);
diff --git a/drivers/cpufreq/speedstep-ich.c b/drivers/cpufreq/speedstep-ich.c
index 929a4f0469a3..1a8b01bd0fec 100644
--- a/drivers/cpufreq/speedstep-ich.c
+++ b/drivers/cpufreq/speedstep-ich.c
@@ -308,7 +308,7 @@ static void get_freqs_on_cpu(void *_get_freqs)
 
 static int speedstep_cpu_init(struct cpufreq_policy *policy)
 {
-	unsigned int policy_cpu, speed;
+	unsigned int policy_cpu;
 	struct get_freqs gf;
 
 	/* only run on CPU to be set, or on its sibling */
@@ -323,19 +323,6 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy)
 	if (gf.ret)
 		return gf.ret;
 
-	/* get current speed setting */
-	speed = speedstep_get(policy_cpu);
-	if (!speed)
-		return -EIO;
-
-	pr_debug("currently at %s speed setting - %i MHz\n",
-		(speed == speedstep_freqs[SPEEDSTEP_LOW].frequency)
-		? "low" : "high",
-		(speed / 1000));
-
-	/* cpuinfo and default policy values */
-	policy->cur = speed;
-
 	return cpufreq_table_validate_and_show(policy, speedstep_freqs);
 }
 
diff --git a/drivers/cpufreq/speedstep-smi.c b/drivers/cpufreq/speedstep-smi.c
index b3dfba0daabb..a02b649c9647 100644
--- a/drivers/cpufreq/speedstep-smi.c
+++ b/drivers/cpufreq/speedstep-smi.c
@@ -267,7 +267,6 @@ static int speedstep_target(struct cpufreq_policy *policy,
 static int speedstep_cpu_init(struct cpufreq_policy *policy)
 {
 	int result;
-	unsigned int speed, state;
 	unsigned int *low, *high;
 
 	/* capability check */
@@ -303,19 +302,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy)
 			pr_debug("workaround worked.\n");
 	}
 
-	/* get current speed setting */
-	state = speedstep_get_state();
-	speed = speedstep_freqs[state].frequency;
-
-	pr_debug("currently at %s speed setting - %i MHz\n",
-		(speed == speedstep_freqs[SPEEDSTEP_LOW].frequency)
-		? "low" : "high",
-		(speed / 1000));
-
-	/* cpuinfo and default policy values */
 	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
-	policy->cur = speed;
-
 	return cpufreq_table_validate_and_show(policy, speedstep_freqs);
 }
 
-- 
cgit 


From 21c895ce7172b21fed5f10e17b4b276962fa7f32 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:05 +0530
Subject: cpufreq: tegra: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Cc: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/tegra-cpufreq.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c
index c36a8e7036af..9c32b23322bd 100644
--- a/drivers/cpufreq/tegra-cpufreq.c
+++ b/drivers/cpufreq/tegra-cpufreq.c
@@ -211,8 +211,7 @@ static int tegra_cpu_init(struct cpufreq_policy *policy)
 	clk_prepare_enable(cpu_clk);
 
 	cpufreq_table_validate_and_show(policy, freq_table);
-	policy->cur = tegra_getspeed(policy->cpu);
-	target_cpu_speed[policy->cpu] = policy->cur;
+	target_cpu_speed[policy->cpu] = tegra_getspeed(policy->cpu);
 
 	/* FIXME: what's the actual transition time? */
 	policy->cpuinfo.transition_latency = 300 * 1000;
-- 
cgit 


From 9909aa1e3b69eb05201bdbd2b9bde00c50c1723a Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:06 +0530
Subject: cpufreq: unicore2: don't initialize part of policy set by core

Many common initializations of struct policy are moved to core now and hence
this driver doesn't need to do it. This patch removes such code.

Most recent of those changes is to call ->get() in the core after calling
->init().

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/unicore2-cpufreq.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/cpufreq/unicore2-cpufreq.c b/drivers/cpufreq/unicore2-cpufreq.c
index 14e6d3106355..653ae2955b55 100644
--- a/drivers/cpufreq/unicore2-cpufreq.c
+++ b/drivers/cpufreq/unicore2-cpufreq.c
@@ -66,7 +66,6 @@ static int __init ucv2_cpu_init(struct cpufreq_policy *policy)
 {
 	if (policy->cpu != 0)
 		return -EINVAL;
-	policy->cur = ucv2_getspeed(0);
 	policy->min = policy->cpuinfo.min_freq = 250000;
 	policy->max = policy->cpuinfo.max_freq = 1000000;
 	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
-- 
cgit 


From 70e9e778337973d5bf57004092b360bd3f3c412f Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:07 +0530
Subject: cpufreq: create cpufreq_generic_init() routine

Many CPUFreq drivers for SMP system (where all cores share same clock lines), do
similar stuff in their ->init() part.

This patch creates a generic routine in cpufreq core which can be used by these
so that we can remove some redundant code.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/Kconfig   |  1 +
 drivers/cpufreq/cpufreq.c | 31 +++++++++++++++++++++++++++++++
 include/linux/cpufreq.h   |  3 +++
 3 files changed, 35 insertions(+)

diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
index 534fcb825153..2d06754f4a04 100644
--- a/drivers/cpufreq/Kconfig
+++ b/drivers/cpufreq/Kconfig
@@ -2,6 +2,7 @@ menu "CPU Frequency scaling"
 
 config CPU_FREQ
 	bool "CPU Frequency scaling"
+	select CPU_FREQ_TABLE
 	help
 	  CPU Frequency scaling allows you to change the clock speed of 
 	  CPUs on the fly. This is a nice method to save power, because 
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index f033adf06eaf..985f325adc4f 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -181,6 +181,37 @@ u64 get_cpu_idle_time(unsigned int cpu, u64 *wall, int io_busy)
 }
 EXPORT_SYMBOL_GPL(get_cpu_idle_time);
 
+/*
+ * This is a generic cpufreq init() routine which can be used by cpufreq
+ * drivers of SMP systems. It will do following:
+ * - validate & show freq table passed
+ * - set policies transition latency
+ * - policy->cpus with all possible CPUs
+ */
+int cpufreq_generic_init(struct cpufreq_policy *policy,
+		struct cpufreq_frequency_table *table,
+		unsigned int transition_latency)
+{
+	int ret;
+
+	ret = cpufreq_table_validate_and_show(policy, table);
+	if (ret) {
+		pr_err("%s: invalid frequency table: %d\n", __func__, ret);
+		return ret;
+	}
+
+	policy->cpuinfo.transition_latency = transition_latency;
+
+	/*
+	 * The driver only supports the SMP configuartion where all processors
+	 * share the clock and voltage and clock.
+	 */
+	cpumask_setall(policy->cpus);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(cpufreq_generic_init);
+
 struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu)
 {
 	struct cpufreq_policy *policy = NULL;
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 36ccd0bf1304..0aba2a6cadaf 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -424,6 +424,9 @@ void cpufreq_frequency_table_put_attr(unsigned int cpu);
 int cpufreq_table_validate_and_show(struct cpufreq_policy *policy,
 				      struct cpufreq_frequency_table *table);
 
+int cpufreq_generic_init(struct cpufreq_policy *policy,
+		struct cpufreq_frequency_table *table,
+		unsigned int transition_latency);
 static inline int cpufreq_generic_exit(struct cpufreq_policy *policy)
 {
 	cpufreq_frequency_table_put_attr(policy->cpu);
-- 
cgit 


From 3bc28ab6da039f8020bbcea8e832b63a900bdb66 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:08 +0530
Subject: cpufreq: remove CONFIG_CPU_FREQ_TABLE

CONFIG_CPU_FREQ_TABLE will be always enabled when cpufreq framework is used, as
cpufreq core depends on it. So, we don't need this CONFIG option anymore as it
is not configurable. Remove CONFIG_CPU_FREQ_TABLE and update its users.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/arm/mach-davinci/Kconfig   |  1 -
 arch/arm/mach-pxa/Kconfig       |  3 ---
 arch/arm/mach-ux500/Kconfig     |  1 -
 arch/blackfin/Kconfig           |  1 -
 arch/cris/Kconfig               |  2 --
 drivers/cpufreq/Kconfig         | 12 ------------
 drivers/cpufreq/Kconfig.arm     | 11 -----------
 drivers/cpufreq/Kconfig.powerpc |  6 ------
 drivers/cpufreq/Kconfig.x86     | 13 -------------
 drivers/cpufreq/Makefile        |  5 +----
 drivers/cpufreq/cpufreq.c       |  2 --
 drivers/thermal/Kconfig         |  1 -
 12 files changed, 1 insertion(+), 57 deletions(-)

diff --git a/arch/arm/mach-davinci/Kconfig b/arch/arm/mach-davinci/Kconfig
index e026b19b23ea..a075b3e0c5c7 100644
--- a/arch/arm/mach-davinci/Kconfig
+++ b/arch/arm/mach-davinci/Kconfig
@@ -40,7 +40,6 @@ config ARCH_DAVINCI_DA850
 	bool "DA850/OMAP-L138/AM18x based system"
 	select ARCH_DAVINCI_DA8XX
 	select ARCH_HAS_CPUFREQ
-	select CPU_FREQ_TABLE
 	select CP_INTC
 
 config ARCH_DAVINCI_DA8XX
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index a8427115ee07..96100dbf5a2e 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -615,14 +615,12 @@ endmenu
 config PXA25x
 	bool
 	select CPU_XSCALE
-	select CPU_FREQ_TABLE if CPU_FREQ
 	help
 	  Select code specific to PXA21x/25x/26x variants
 
 config PXA27x
 	bool
 	select CPU_XSCALE
-	select CPU_FREQ_TABLE if CPU_FREQ
 	help
 	  Select code specific to PXA27x variants
 
@@ -635,7 +633,6 @@ config CPU_PXA26x
 config PXA3xx
 	bool
 	select CPU_XSC3
-	select CPU_FREQ_TABLE if CPU_FREQ
 	help
 	  Select code specific to PXA3xx variants
 
diff --git a/arch/arm/mach-ux500/Kconfig b/arch/arm/mach-ux500/Kconfig
index 99a28d628297..7a3fc1af6944 100644
--- a/arch/arm/mach-ux500/Kconfig
+++ b/arch/arm/mach-ux500/Kconfig
@@ -34,7 +34,6 @@ config UX500_SOC_COMMON
 
 config UX500_SOC_DB8500
 	bool
-	select CPU_FREQ_TABLE if CPU_FREQ
 	select MFD_DB8500_PRCMU
 	select PINCTRL_DB8500
 	select PINCTRL_DB8540
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index f78c9a2c7e28..eb382aedd9a2 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -1429,7 +1429,6 @@ source "drivers/cpufreq/Kconfig"
 config BFIN_CPU_FREQ
 	bool
 	depends on CPU_FREQ
-	select CPU_FREQ_TABLE
 	default y
 
 config CPU_VOLTAGE
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index 02380bed189c..9c957c81c688 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -130,13 +130,11 @@ config SVINTO_SIM
 
 config ETRAXFS
 	bool "ETRAX-FS-V32"
-	select CPU_FREQ_TABLE if CPU_FREQ
 	help
 	  Support CRIS V32.
 
 config CRIS_MACH_ARTPEC3
         bool "ARTPEC-3"
-	select CPU_FREQ_TABLE if CPU_FREQ
         help
           Support Axis ARTPEC-3.
 
diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
index 2d06754f4a04..38093e272377 100644
--- a/drivers/cpufreq/Kconfig
+++ b/drivers/cpufreq/Kconfig
@@ -2,7 +2,6 @@ menu "CPU Frequency scaling"
 
 config CPU_FREQ
 	bool "CPU Frequency scaling"
-	select CPU_FREQ_TABLE
 	help
 	  CPU Frequency scaling allows you to change the clock speed of 
 	  CPUs on the fly. This is a nice method to save power, because 
@@ -18,15 +17,11 @@ config CPU_FREQ
 
 if CPU_FREQ
 
-config CPU_FREQ_TABLE
-	tristate
-
 config CPU_FREQ_GOV_COMMON
 	bool
 
 config CPU_FREQ_STAT
 	tristate "CPU frequency translation statistics"
-	select CPU_FREQ_TABLE
 	default y
 	help
 	  This driver exports CPU frequency statistics information through sysfs
@@ -144,7 +139,6 @@ config CPU_FREQ_GOV_USERSPACE
 
 config CPU_FREQ_GOV_ONDEMAND
 	tristate "'ondemand' cpufreq policy governor"
-	select CPU_FREQ_TABLE
 	select CPU_FREQ_GOV_COMMON
 	help
 	  'ondemand' - This driver adds a dynamic cpufreq policy governor.
@@ -188,7 +182,6 @@ config CPU_FREQ_GOV_CONSERVATIVE
 config GENERIC_CPUFREQ_CPU0
 	tristate "Generic CPU0 cpufreq driver"
 	depends on HAVE_CLK && REGULATOR && PM_OPP && OF
-	select CPU_FREQ_TABLE
 	help
 	  This adds a generic cpufreq driver for CPU0 frequency management.
 	  It supports both uniprocessor (UP) and symmetric multiprocessor (SMP)
@@ -224,7 +217,6 @@ depends on IA64
 
 config IA64_ACPI_CPUFREQ
 	tristate "ACPI Processor P-States driver"
-	select CPU_FREQ_TABLE
 	depends on ACPI_PROCESSOR
 	help
 	This driver adds a CPUFreq driver which utilizes the ACPI
@@ -241,7 +233,6 @@ depends on MIPS
 
 config LOONGSON2_CPUFREQ
 	tristate "Loongson2 CPUFreq Driver"
-	select CPU_FREQ_TABLE
 	help
 	  This option adds a CPUFreq driver for loongson processors which
 	  support software configurable cpu frequency.
@@ -263,7 +254,6 @@ menu "SPARC CPU frequency scaling drivers"
 depends on SPARC64
 config SPARC_US3_CPUFREQ
 	tristate "UltraSPARC-III CPU Frequency driver"
-	select CPU_FREQ_TABLE
 	help
 	  This adds the CPUFreq driver for UltraSPARC-III processors.
 
@@ -273,7 +263,6 @@ config SPARC_US3_CPUFREQ
 
 config SPARC_US2E_CPUFREQ
 	tristate "UltraSPARC-IIe CPU Frequency driver"
-	select CPU_FREQ_TABLE
 	help
 	  This adds the CPUFreq driver for UltraSPARC-IIe processors.
 
@@ -286,7 +275,6 @@ menu "SH CPU Frequency scaling"
 depends on SUPERH
 config SH_CPU_FREQ
 	tristate "SuperH CPU Frequency driver"
-	select CPU_FREQ_TABLE
 	help
 	  This adds the cpufreq driver for SuperH. Any CPU that supports
 	  clock rate rounding through the clock framework can use this
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 0fa204b244bd..701ec95ce954 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -5,7 +5,6 @@
 config ARM_BIG_LITTLE_CPUFREQ
 	tristate "Generic ARM big LITTLE CPUfreq driver"
 	depends on ARM_CPU_TOPOLOGY && PM_OPP && HAVE_CLK
-	select CPU_FREQ_TABLE
 	help
 	  This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
 
@@ -18,7 +17,6 @@ config ARM_DT_BL_CPUFREQ
 
 config ARM_EXYNOS_CPUFREQ
 	bool
-	select CPU_FREQ_TABLE
 
 config ARM_EXYNOS4210_CPUFREQ
 	bool "SAMSUNG EXYNOS4210"
@@ -58,7 +56,6 @@ config ARM_EXYNOS5440_CPUFREQ
 	depends on SOC_EXYNOS5440
 	depends on HAVE_CLK && PM_OPP && OF
 	default y
-	select CPU_FREQ_TABLE
 	help
 	  This adds the CPUFreq driver for Samsung EXYNOS5440
 	  SoC. The nature of exynos5440 clock controller is
@@ -85,7 +82,6 @@ config ARM_IMX6Q_CPUFREQ
 	tristate "Freescale i.MX6Q cpufreq support"
 	depends on SOC_IMX6Q
 	depends on REGULATOR_ANATOP
-	select CPU_FREQ_TABLE
 	help
 	  This adds cpufreq driver support for Freescale i.MX6Q SOC.
 
@@ -101,7 +97,6 @@ config ARM_INTEGRATOR
 
 config ARM_KIRKWOOD_CPUFREQ
 	def_bool ARCH_KIRKWOOD && OF
-	select CPU_FREQ_TABLE
 	help
 	  This adds the CPUFreq driver for Marvell Kirkwood
 	  SoCs.
@@ -110,7 +105,6 @@ config ARM_OMAP2PLUS_CPUFREQ
 	bool "TI OMAP2+"
 	depends on ARCH_OMAP2PLUS
 	default ARCH_OMAP2PLUS
-	select CPU_FREQ_TABLE
 
 config ARM_S3C_CPUFREQ
 	bool
@@ -165,7 +159,6 @@ config ARM_S3C2412_CPUFREQ
 config ARM_S3C2416_CPUFREQ
 	bool "S3C2416 CPU Frequency scaling support"
 	depends on CPU_S3C2416
-	select CPU_FREQ_TABLE
 	help
 	  This adds the CPUFreq driver for the Samsung S3C2416 and
 	  S3C2450 SoC. The S3C2416 supports changing the rate of the
@@ -196,7 +189,6 @@ config ARM_S3C2440_CPUFREQ
 config ARM_S3C64XX_CPUFREQ
 	bool "Samsung S3C64XX"
 	depends on CPU_S3C6410
-	select CPU_FREQ_TABLE
 	default y
 	help
 	  This adds the CPUFreq driver for Samsung S3C6410 SoC.
@@ -206,7 +198,6 @@ config ARM_S3C64XX_CPUFREQ
 config ARM_S5PV210_CPUFREQ
 	bool "Samsung S5PV210 and S5PC110"
 	depends on CPU_S5PV210
-	select CPU_FREQ_TABLE
 	default y
 	help
 	  This adds the CPUFreq driver for Samsung S5PV210 and
@@ -223,7 +214,6 @@ config ARM_SA1110_CPUFREQ
 config ARM_SPEAR_CPUFREQ
 	bool "SPEAr CPUFreq support"
 	depends on PLAT_SPEAR
-	select CPU_FREQ_TABLE
 	default y
 	help
 	  This adds the CPUFreq driver support for SPEAr SOCs.
@@ -231,7 +221,6 @@ config ARM_SPEAR_CPUFREQ
 config ARM_TEGRA_CPUFREQ
 	bool "TEGRA CPUFreq support"
 	depends on ARCH_TEGRA
-	select CPU_FREQ_TABLE
 	default y
 	help
 	  This adds the CPUFreq driver support for TEGRA SOCs.
diff --git a/drivers/cpufreq/Kconfig.powerpc b/drivers/cpufreq/Kconfig.powerpc
index 25ca9db62e09..ca0021a96e19 100644
--- a/drivers/cpufreq/Kconfig.powerpc
+++ b/drivers/cpufreq/Kconfig.powerpc
@@ -1,7 +1,6 @@
 config CPU_FREQ_CBE
 	tristate "CBE frequency scaling"
 	depends on CBE_RAS && PPC_CELL
-	select CPU_FREQ_TABLE
 	default m
 	help
 	  This adds the cpufreq driver for Cell BE processors.
@@ -20,7 +19,6 @@ config CPU_FREQ_CBE_PMI
 config CPU_FREQ_MAPLE
 	bool "Support for Maple 970FX Evaluation Board"
 	depends on PPC_MAPLE
-	select CPU_FREQ_TABLE
 	help
 	  This adds support for frequency switching on Maple 970FX
 	  Evaluation Board and compatible boards (IBM JS2x blades).
@@ -28,7 +26,6 @@ config CPU_FREQ_MAPLE
 config PPC_CORENET_CPUFREQ
 	tristate "CPU frequency scaling driver for Freescale E500MC SoCs"
 	depends on PPC_E500MC && OF && COMMON_CLK
-	select CPU_FREQ_TABLE
 	select CLK_PPC_CORENET
 	help
 	  This adds the CPUFreq driver support for Freescale e500mc,
@@ -38,7 +35,6 @@ config PPC_CORENET_CPUFREQ
 config CPU_FREQ_PMAC
 	bool "Support for Apple PowerBooks"
 	depends on ADB_PMU && PPC32
-	select CPU_FREQ_TABLE
 	help
 	  This adds support for frequency switching on Apple PowerBooks,
 	  this currently includes some models of iBook & Titanium
@@ -47,7 +43,6 @@ config CPU_FREQ_PMAC
 config CPU_FREQ_PMAC64
 	bool "Support for some Apple G5s"
 	depends on PPC_PMAC && PPC64
-	select CPU_FREQ_TABLE
 	help
 	  This adds support for frequency switching on Apple iMac G5,
 	  and some of the more recent desktop G5 machines as well.
@@ -55,7 +50,6 @@ config CPU_FREQ_PMAC64
 config PPC_PASEMI_CPUFREQ
 	bool "Support for PA Semi PWRficient"
 	depends on PPC_PASEMI
-	select CPU_FREQ_TABLE
 	default y
 	help
 	  This adds the support for frequency switching on PA Semi
diff --git a/drivers/cpufreq/Kconfig.x86 b/drivers/cpufreq/Kconfig.x86
index e2b6eabef221..6897ad85b046 100644
--- a/drivers/cpufreq/Kconfig.x86
+++ b/drivers/cpufreq/Kconfig.x86
@@ -31,7 +31,6 @@ config X86_PCC_CPUFREQ
 
 config X86_ACPI_CPUFREQ
 	tristate "ACPI Processor P-States driver"
-	select CPU_FREQ_TABLE
 	depends on ACPI_PROCESSOR
 	help
 	  This driver adds a CPUFreq driver which utilizes the ACPI
@@ -60,7 +59,6 @@ config X86_ACPI_CPUFREQ_CPB
 
 config ELAN_CPUFREQ
 	tristate "AMD Elan SC400 and SC410"
-	select CPU_FREQ_TABLE
 	depends on MELAN
 	---help---
 	  This adds the CPUFreq driver for AMD Elan SC400 and SC410
@@ -76,7 +74,6 @@ config ELAN_CPUFREQ
 
 config SC520_CPUFREQ
 	tristate "AMD Elan SC520"
-	select CPU_FREQ_TABLE
 	depends on MELAN
 	---help---
 	  This adds the CPUFreq driver for AMD Elan SC520 processor.
@@ -88,7 +85,6 @@ config SC520_CPUFREQ
 
 config X86_POWERNOW_K6
 	tristate "AMD Mobile K6-2/K6-3 PowerNow!"
-	select CPU_FREQ_TABLE
 	depends on X86_32
 	help
 	  This adds the CPUFreq driver for mobile AMD K6-2+ and mobile
@@ -100,7 +96,6 @@ config X86_POWERNOW_K6
 
 config X86_POWERNOW_K7
 	tristate "AMD Mobile Athlon/Duron PowerNow!"
-	select CPU_FREQ_TABLE
 	depends on X86_32
 	help
 	  This adds the CPUFreq driver for mobile AMD K7 mobile processors.
@@ -118,7 +113,6 @@ config X86_POWERNOW_K7_ACPI
 
 config X86_POWERNOW_K8
 	tristate "AMD Opteron/Athlon64 PowerNow!"
-	select CPU_FREQ_TABLE
 	depends on ACPI && ACPI_PROCESSOR && X86_ACPI_CPUFREQ
 	help
 	  This adds the CPUFreq driver for K8/early Opteron/Athlon64 processors.
@@ -132,7 +126,6 @@ config X86_POWERNOW_K8
 config X86_AMD_FREQ_SENSITIVITY
 	tristate "AMD frequency sensitivity feedback powersave bias"
 	depends on CPU_FREQ_GOV_ONDEMAND && X86_ACPI_CPUFREQ && CPU_SUP_AMD
-	select CPU_FREQ_TABLE
 	help
 	  This adds AMD-specific powersave bias function to the ondemand
 	  governor, which allows it to make more power-conscious frequency
@@ -160,7 +153,6 @@ config X86_GX_SUSPMOD
 
 config X86_SPEEDSTEP_CENTRINO
 	tristate "Intel Enhanced SpeedStep (deprecated)"
-	select CPU_FREQ_TABLE
 	select X86_SPEEDSTEP_CENTRINO_TABLE if X86_32
 	depends on X86_32 || (X86_64 && ACPI_PROCESSOR)
 	help
@@ -190,7 +182,6 @@ config X86_SPEEDSTEP_CENTRINO_TABLE
 
 config X86_SPEEDSTEP_ICH
 	tristate "Intel Speedstep on ICH-M chipsets (ioport interface)"
-	select CPU_FREQ_TABLE
 	depends on X86_32
 	help
 	  This adds the CPUFreq driver for certain mobile Intel Pentium III
@@ -204,7 +195,6 @@ config X86_SPEEDSTEP_ICH
 
 config X86_SPEEDSTEP_SMI
 	tristate "Intel SpeedStep on 440BX/ZX/MX chipsets (SMI interface)"
-	select CPU_FREQ_TABLE
 	depends on X86_32
 	help
 	  This adds the CPUFreq driver for certain mobile Intel Pentium III
@@ -217,7 +207,6 @@ config X86_SPEEDSTEP_SMI
 
 config X86_P4_CLOCKMOD
 	tristate "Intel Pentium 4 clock modulation"
-	select CPU_FREQ_TABLE
 	help
 	  This adds the CPUFreq driver for Intel Pentium 4 / XEON
 	  processors.  When enabled it will lower CPU temperature by skipping
@@ -259,7 +248,6 @@ config X86_LONGRUN
 
 config X86_LONGHAUL
 	tristate "VIA Cyrix III Longhaul"
-	select CPU_FREQ_TABLE
 	depends on X86_32 && ACPI_PROCESSOR
 	help
 	  This adds the CPUFreq driver for VIA Samuel/CyrixIII,
@@ -272,7 +260,6 @@ config X86_LONGHAUL
 
 config X86_E_POWERSAVER
 	tristate "VIA C7 Enhanced PowerSaver (DANGEROUS)"
-	select CPU_FREQ_TABLE
 	depends on X86_32 && ACPI_PROCESSOR
 	help
 	  This adds the CPUFreq driver for VIA C7 processors.  However, this driver
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index ad5866c2ada0..b7948bbbbf1f 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -1,5 +1,5 @@
 # CPUfreq core
-obj-$(CONFIG_CPU_FREQ)			+= cpufreq.o
+obj-$(CONFIG_CPU_FREQ)			+= cpufreq.o freq_table.o
 # CPUfreq stats
 obj-$(CONFIG_CPU_FREQ_STAT)             += cpufreq_stats.o
 
@@ -11,9 +11,6 @@ obj-$(CONFIG_CPU_FREQ_GOV_ONDEMAND)	+= cpufreq_ondemand.o
 obj-$(CONFIG_CPU_FREQ_GOV_CONSERVATIVE)	+= cpufreq_conservative.o
 obj-$(CONFIG_CPU_FREQ_GOV_COMMON)		+= cpufreq_governor.o
 
-# CPUfreq cross-arch helpers
-obj-$(CONFIG_CPU_FREQ_TABLE)		+= freq_table.o
-
 obj-$(CONFIG_GENERIC_CPUFREQ_CPU0)	+= cpufreq-cpu0.o
 
 ##################################################################################
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 985f325adc4f..f0897c75468b 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -986,9 +986,7 @@ static void update_policy_cpu(struct cpufreq_policy *policy, unsigned int cpu)
 
 	up_write(&per_cpu(cpu_policy_rwsem, policy->last_cpu));
 
-#ifdef CONFIG_CPU_FREQ_TABLE
 	cpufreq_frequency_table_update_policy_cpu(policy);
-#endif
 	blocking_notifier_call_chain(&cpufreq_policy_notifier_list,
 			CPUFREQ_UPDATE_POLICY_CPU, policy);
 }
diff --git a/drivers/thermal/Kconfig b/drivers/thermal/Kconfig
index dbfc390330ac..5ef596765060 100644
--- a/drivers/thermal/Kconfig
+++ b/drivers/thermal/Kconfig
@@ -78,7 +78,6 @@ config THERMAL_GOV_USER_SPACE
 config CPU_THERMAL
 	bool "generic cpu cooling support"
 	depends on CPU_FREQ
-	select CPU_FREQ_TABLE
 	help
 	  This implements the generic cpu cooling mechanism through frequency
 	  reduction. An ACPI version of this already exists
-- 
cgit 


From 78b3d1093626f8536a089b0490127b47131bd327 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:09 +0530
Subject: cpufreq: cpufreq-cpu0: use cpufreq_generic_init()

Use generic cpufreq_generic_init() routine instead of replicating the same code
here.

Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq-cpu0.c | 19 +------------------
 1 file changed, 1 insertion(+), 18 deletions(-)

diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
index 3c09a265903f..582888db6058 100644
--- a/drivers/cpufreq/cpufreq-cpu0.c
+++ b/drivers/cpufreq/cpufreq-cpu0.c
@@ -122,24 +122,7 @@ post_notify:
 
 static int cpu0_cpufreq_init(struct cpufreq_policy *policy)
 {
-	int ret;
-
-	ret = cpufreq_table_validate_and_show(policy, freq_table);
-	if (ret) {
-		pr_err("invalid frequency table: %d\n", ret);
-		return ret;
-	}
-
-	policy->cpuinfo.transition_latency = transition_latency;
-
-	/*
-	 * The driver only supports the SMP configuartion where all processors
-	 * share the clock and voltage and clock.  Use cpufreq affected_cpus
-	 * interface to have all CPUs scaled together.
-	 */
-	cpumask_setall(policy->cpus);
-
-	return 0;
+	return cpufreq_generic_init(policy, freq_table, transition_latency);
 }
 
 static struct cpufreq_driver cpu0_cpufreq_driver = {
-- 
cgit 


From 1870e11193925c87f9b3a647ef26531277530136 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:10 +0530
Subject: cpufreq: cris: use cpufreq_generic_init()

Use generic cpufreq_generic_init() routine instead of replicating the same code
here.

Cc: Mikael Starvik <starvik@axis.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cris-artpec3-cpufreq.c | 6 +-----
 drivers/cpufreq/cris-etraxfs-cpufreq.c | 5 +----
 2 files changed, 2 insertions(+), 9 deletions(-)

diff --git a/drivers/cpufreq/cris-artpec3-cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c
index 4d88e4fa2ad4..05fdc7e40257 100644
--- a/drivers/cpufreq/cris-artpec3-cpufreq.c
+++ b/drivers/cpufreq/cris-artpec3-cpufreq.c
@@ -71,13 +71,9 @@ static int cris_freq_target(struct cpufreq_policy *policy,
 
 static int cris_freq_cpu_init(struct cpufreq_policy *policy)
 {
-	/* cpuinfo and default policy values */
-	policy->cpuinfo.transition_latency = 1000000; /* 1ms */
-
-	return cpufreq_table_validate_and_show(policy, cris_freq_table);
+	return cpufreq_generic_init(policy, cris_freq_table, 1000000);
 }
 
-
 static struct cpufreq_driver cris_freq_driver = {
 	.get	= cris_freq_get_cpu_frequency,
 	.verify	= cpufreq_generic_frequency_table_verify,
diff --git a/drivers/cpufreq/cris-etraxfs-cpufreq.c b/drivers/cpufreq/cris-etraxfs-cpufreq.c
index f7d2d49f7c07..fac2b26932dd 100644
--- a/drivers/cpufreq/cris-etraxfs-cpufreq.c
+++ b/drivers/cpufreq/cris-etraxfs-cpufreq.c
@@ -70,10 +70,7 @@ static int cris_freq_target(struct cpufreq_policy *policy,
 
 static int cris_freq_cpu_init(struct cpufreq_policy *policy)
 {
-	/* cpuinfo and default policy values */
-	policy->cpuinfo.transition_latency = 1000000;	/* 1ms */
-
-	return cpufreq_table_validate_and_show(policy, cris_freq_table);
+	return cpufreq_generic_init(policy, cris_freq_table, 1000000);
 }
 
 static struct cpufreq_driver cris_freq_driver = {
-- 
cgit 


From af8c4cfabea88b441282dff26ef08d52a90d653c Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:11 +0530
Subject: cpufreq: davinci: use cpufreq_generic_init()

Use generic cpufreq_generic_init() routine instead of replicating the same code
here.

Cc: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/davinci-cpufreq.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/cpufreq/davinci-cpufreq.c b/drivers/cpufreq/davinci-cpufreq.c
index 55cf09425db2..972583baf9e8 100644
--- a/drivers/cpufreq/davinci-cpufreq.c
+++ b/drivers/cpufreq/davinci-cpufreq.c
@@ -136,21 +136,13 @@ static int davinci_cpu_init(struct cpufreq_policy *policy)
 			return result;
 	}
 
-	result = cpufreq_table_validate_and_show(policy, freq_table);
-	if (result) {
-		pr_err("%s: cpufreq_table_validate_and_show() failed",
-				__func__);
-		return result;
-	}
-
 	/*
 	 * Time measurement across the target() function yields ~1500-1800us
 	 * time taken with no drivers on notification list.
 	 * Setting the latency to 2000 us to accommodate addition of drivers
 	 * to pre/post change notification list.
 	 */
-	policy->cpuinfo.transition_latency = 2000 * 1000;
-	return 0;
+	return cpufreq_generic_init(policy, freq_table, 2000 * 1000);
 }
 
 static struct cpufreq_driver davinci_driver = {
-- 
cgit 


From 2b3dc761cf2cfaf773ebec5c169494c4a670a419 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:12 +0530
Subject: cpufreq: dbx500: use cpufreq_generic_init()

Use generic cpufreq_generic_init() routine instead of replicating the same code
here.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/dbx500-cpufreq.c | 21 +--------------------
 1 file changed, 1 insertion(+), 20 deletions(-)

diff --git a/drivers/cpufreq/dbx500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c
index ae1aa60b138a..a60f7693c18e 100644
--- a/drivers/cpufreq/dbx500-cpufreq.c
+++ b/drivers/cpufreq/dbx500-cpufreq.c
@@ -74,26 +74,7 @@ static unsigned int dbx500_cpufreq_getspeed(unsigned int cpu)
 
 static int dbx500_cpufreq_init(struct cpufreq_policy *policy)
 {
-	int res;
-
-	/* get policy fields based on the table */
-	res = cpufreq_table_validate_and_show(policy, freq_table);
-	if (res) {
-		pr_err("dbx500-cpufreq: Failed to read policy table\n");
-		return res;
-	}
-
-	/*
-	 * FIXME : Need to take time measurement across the target()
-	 *	   function with no/some/all drivers in the notification
-	 *	   list.
-	 */
-	policy->cpuinfo.transition_latency = 20 * 1000; /* in ns */
-
-	/* policy sharing between dual CPUs */
-	cpumask_setall(policy->cpus);
-
-	return 0;
+	return cpufreq_generic_init(policy, freq_table, 20 * 1000);
 }
 
 static struct cpufreq_driver dbx500_cpufreq_driver = {
-- 
cgit 


From b249abaebfc2ce5cfac4cdb454a64ce6273aba2a Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:13 +0530
Subject: cpufreq: exynos: use cpufreq_generic_init()

Use generic cpufreq_generic_init() routine instead of replicating the same code
here.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/exynos-cpufreq.c     |  7 +------
 drivers/cpufreq/exynos5440-cpufreq.c | 14 ++------------
 2 files changed, 3 insertions(+), 18 deletions(-)

diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index 5244086bb9ca..b96fcc847636 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -241,12 +241,7 @@ static struct notifier_block exynos_cpufreq_nb = {
 
 static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
 {
-	/* set the transition latency value */
-	policy->cpuinfo.transition_latency = 100000;
-
-	cpumask_setall(policy->cpus);
-
-	return cpufreq_table_validate_and_show(policy, exynos_info->freq_table);
+	return cpufreq_generic_init(policy, exynos_info->freq_table, 100000);
 }
 
 static struct cpufreq_driver exynos_driver = {
diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c
index 9b7fdec19622..06b73e85eec0 100644
--- a/drivers/cpufreq/exynos5440-cpufreq.c
+++ b/drivers/cpufreq/exynos5440-cpufreq.c
@@ -318,18 +318,8 @@ static void exynos_sort_descend_freq_table(void)
 
 static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
 {
-	int ret;
-
-	ret = cpufreq_table_validate_and_show(policy, dvfs_info->freq_table);
-	if (ret) {
-		dev_err(dvfs_info->dev, "Invalid frequency table: %d\n", ret);
-		return ret;
-	}
-
-	policy->cpuinfo.transition_latency = dvfs_info->latency;
-	cpumask_setall(policy->cpus);
-
-	return 0;
+	return cpufreq_generic_init(policy, dvfs_info->freq_table,
+			dvfs_info->latency);
 }
 
 static struct cpufreq_driver exynos_driver = {
-- 
cgit 


From 17922ddd8eeb0d6474fbeb32a5366bb82d4273fa Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:14 +0530
Subject: cpufreq: imx6q: use cpufreq_generic_init()

Use generic cpufreq_generic_init() routine instead of replicating the same code
here.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/imx6q-cpufreq.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index 9d22dfa7a2be..d81062f7dd73 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -154,18 +154,7 @@ post_notify:
 
 static int imx6q_cpufreq_init(struct cpufreq_policy *policy)
 {
-	int ret;
-
-	ret = cpufreq_table_validate_and_show(policy, freq_table);
-	if (ret) {
-		dev_err(cpu_dev, "invalid frequency table: %d\n", ret);
-		return ret;
-	}
-
-	policy->cpuinfo.transition_latency = transition_latency;
-	cpumask_setall(policy->cpus);
-
-	return 0;
+	return cpufreq_generic_init(policy, freq_table, transition_latency);
 }
 
 static struct cpufreq_driver imx6q_cpufreq_driver = {
-- 
cgit 


From fa6fa663b61929fbd9a83765aaa1996d65246167 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:15 +0530
Subject: cpufreq: kirkwood: use cpufreq_generic_init()

Use generic cpufreq_generic_init() routine instead of replicating the same code
here.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/kirkwood-cpufreq.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c
index dc434c44acee..fff8653c8e9b 100644
--- a/drivers/cpufreq/kirkwood-cpufreq.c
+++ b/drivers/cpufreq/kirkwood-cpufreq.c
@@ -120,10 +120,7 @@ static int kirkwood_cpufreq_target(struct cpufreq_policy *policy,
 /* Module init and exit code */
 static int kirkwood_cpufreq_cpu_init(struct cpufreq_policy *policy)
 {
-	/* cpuinfo and default policy values */
-	policy->cpuinfo.transition_latency = 5000; /* 5uS */
-
-	return cpufreq_table_validate_and_show(policy, kirkwood_freq_table);
+	return cpufreq_generic_init(policy, kirkwood_freq_table, 5000);
 }
 
 static struct cpufreq_driver kirkwood_cpufreq_driver = {
-- 
cgit 


From e0b2da585f286ffa86cd24c0df1c1440d9dae19f Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:16 +0530
Subject: cpufreq: loongson2: use cpufreq_generic_init()

Use generic cpufreq_generic_init() routine instead of replicating the same code
here. This driver wasn't setting transition_latency and so is getting set to 0
by default. Lets mark it explicitly by calling the generic routine with
transition_latency as 0.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/loongson2_cpufreq.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c
index dd4f3e46f724..2c8ec8e06449 100644
--- a/drivers/cpufreq/loongson2_cpufreq.c
+++ b/drivers/cpufreq/loongson2_cpufreq.c
@@ -131,8 +131,7 @@ static int loongson2_cpufreq_cpu_init(struct cpufreq_policy *policy)
 		return ret;
 	}
 
-	return cpufreq_table_validate_and_show(policy,
-					    &loongson2_clockmod_table[0]);
+	return cpufreq_generic_init(policy, &loongson2_clockmod_table[0], 0);
 }
 
 static int loongson2_cpufreq_exit(struct cpufreq_policy *policy)
-- 
cgit 


From 7bfd24835697376bebb6f4dd88fa7ebc42937f99 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:17 +0530
Subject: cpufreq: maple: use cpufreq_generic_init()

Use generic cpufreq_generic_init() routine instead of replicating the same code
here.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/maple-cpufreq.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/cpufreq/maple-cpufreq.c b/drivers/cpufreq/maple-cpufreq.c
index 1c0cec1518ff..eb1e1766baed 100644
--- a/drivers/cpufreq/maple-cpufreq.c
+++ b/drivers/cpufreq/maple-cpufreq.c
@@ -165,16 +165,9 @@ static unsigned int maple_cpufreq_get_speed(unsigned int cpu)
 
 static int maple_cpufreq_cpu_init(struct cpufreq_policy *policy)
 {
-	policy->cpuinfo.transition_latency = 12000;
-	/* secondary CPUs are tied to the primary one by the
-	 * cpufreq core if in the secondary policy we tell it that
-	 * it actually must be one policy together with all others. */
-	cpumask_setall(policy->cpus);
-
-	return cpufreq_table_validate_and_show(policy, maple_cpu_freqs);
+	return cpufreq_generic_init(policy, maple_cpu_freqs, 12000);
 }
 
-
 static struct cpufreq_driver maple_cpufreq_driver = {
 	.name		= "maple",
 	.flags		= CPUFREQ_CONST_LOOPS,
-- 
cgit 


From 982bce112f48e588bdf8b588dc57c1755fe58805 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:18 +0530
Subject: cpufreq: omap: use cpufreq_generic_init()

Use generic cpufreq_generic_init() routine instead of replicating the same code
here.

This also rearranges the code a bit to make it more sensible. Also removes some
unnecessary checks.

Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/omap-cpufreq.c | 41 +++++++++++------------------------------
 1 file changed, 11 insertions(+), 30 deletions(-)

diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index a8c3f90571ea..58b2200ec780 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -160,50 +160,31 @@ static inline void freq_table_free(void)
 
 static int omap_cpu_init(struct cpufreq_policy *policy)
 {
-	int result = 0;
+	int result;
 
 	mpu_clk = clk_get(NULL, "cpufreq_ck");
 	if (IS_ERR(mpu_clk))
 		return PTR_ERR(mpu_clk);
 
-	if (policy->cpu >= NR_CPUS) {
-		result = -EINVAL;
-		goto fail_ck;
-	}
-
-	if (!freq_table)
+	if (!freq_table) {
 		result = opp_init_cpufreq_table(mpu_dev, &freq_table);
-
-	if (result) {
-		dev_err(mpu_dev, "%s: cpu%d: failed creating freq table[%d]\n",
+		if (result) {
+			dev_err(mpu_dev,
+				"%s: cpu%d: failed creating freq table[%d]\n",
 				__func__, policy->cpu, result);
-		goto fail_ck;
+			goto fail;
+		}
 	}
 
 	atomic_inc_return(&freq_table_users);
 
-	result = cpufreq_table_validate_and_show(policy, freq_table);
-	if (result)
-		goto fail_table;
-
-	/*
-	 * On OMAP SMP configuartion, both processors share the voltage
-	 * and clock. So both CPUs needs to be scaled together and hence
-	 * needs software co-ordination. Use cpufreq affected_cpus
-	 * interface to handle this scenario. Additional is_smp() check
-	 * is to keep SMP_ON_UP build working.
-	 */
-	if (is_smp())
-		cpumask_setall(policy->cpus);
-
 	/* FIXME: what's the actual transition time? */
-	policy->cpuinfo.transition_latency = 300 * 1000;
-
-	return 0;
+	result = cpufreq_generic_init(policy, freq_table, 300 * 1000);
+	if (!result)
+		return 0;
 
-fail_table:
 	freq_table_free();
-fail_ck:
+fail:
 	clk_put(mpu_clk);
 	return result;
 }
-- 
cgit 


From e315bb738c618d5a60073ba885c586a874f8deda Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:19 +0530
Subject: cpufreq: pasemi: use cpufreq_generic_init()

Use generic cpufreq_generic_init() routine instead of replicating the same code
here.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/pasemi-cpufreq.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c
index 16f250809d7a..1cca332728c3 100644
--- a/drivers/cpufreq/pasemi-cpufreq.c
+++ b/drivers/cpufreq/pasemi-cpufreq.c
@@ -204,20 +204,13 @@ static int pas_cpufreq_cpu_init(struct cpufreq_policy *policy)
 		pr_debug("%d: %d\n", i, pas_freqs[i].frequency);
 	}
 
-	policy->cpuinfo.transition_latency = get_gizmo_latency();
-
 	cur_astate = get_cur_astate(policy->cpu);
 	pr_debug("current astate is at %d\n",cur_astate);
 
 	policy->cur = pas_freqs[cur_astate].frequency;
-	cpumask_copy(policy->cpus, cpu_online_mask);
-
 	ppc_proc_freq = policy->cur * 1000ul;
 
-	/* this ensures that policy->cpuinfo_min and policy->cpuinfo_max
-	 * are set correctly
-	 */
-	return cpufreq_table_validate_and_show(policy, pas_freqs);
+	return cpufreq_generic_init(policy, pas_freqs, get_gizmo_latency());
 
 out_unmap_sdcpwr:
 	iounmap(sdcpwr_mapbase);
-- 
cgit 


From 5465e7be76cc75c7dcb08801fa5b7add28d8d3a9 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:20 +0530
Subject: cpufreq: pmac32: use cpufreq_generic_init()

Use generic cpufreq_generic_init() routine instead of replicating the same code
here.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/pmac32-cpufreq.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/cpufreq/pmac32-cpufreq.c b/drivers/cpufreq/pmac32-cpufreq.c
index 672b7f4a7de5..6eac1e230078 100644
--- a/drivers/cpufreq/pmac32-cpufreq.c
+++ b/drivers/cpufreq/pmac32-cpufreq.c
@@ -392,12 +392,7 @@ static int pmac_cpufreq_target(	struct cpufreq_policy *policy,
 
 static int pmac_cpufreq_cpu_init(struct cpufreq_policy *policy)
 {
-	if (policy->cpu != 0)
-		return -ENODEV;
-
-	policy->cpuinfo.transition_latency	= transition_latency;
-
-	return cpufreq_table_validate_and_show(policy, pmac_cpu_freqs);
+	return cpufreq_generic_init(policy, pmac_cpu_freqs, transition_latency);
 }
 
 static u32 read_gpio(struct device_node *np)
-- 
cgit 


From 8ce6f9de9785857669d39e061c9d2e87d1c516d7 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:21 +0530
Subject: cpufreq: pmac64: use cpufreq_generic_init()

Use generic cpufreq_generic_init() routine instead of replicating the same code
here.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/pmac64-cpufreq.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c
index 79e40c91378e..b977b9aa408e 100644
--- a/drivers/cpufreq/pmac64-cpufreq.c
+++ b/drivers/cpufreq/pmac64-cpufreq.c
@@ -347,16 +347,9 @@ static unsigned int g5_cpufreq_get_speed(unsigned int cpu)
 
 static int g5_cpufreq_cpu_init(struct cpufreq_policy *policy)
 {
-	policy->cpuinfo.transition_latency = transition_latency;
-	/* secondary CPUs are tied to the primary one by the
-	 * cpufreq core if in the secondary policy we tell it that
-	 * it actually must be one policy together with all others. */
-	cpumask_copy(policy->cpus, cpu_online_mask);
-
-	return cpufreq_table_validate_and_show(policy, g5_cpu_freqs);
+	return cpufreq_generic_init(policy, g5_cpu_freqs, transition_latency);
 }
 
-
 static struct cpufreq_driver g5_cpufreq_driver = {
 	.name		= "powermac",
 	.flags		= CPUFREQ_CONST_LOOPS,
-- 
cgit 


From a307a1e6bc0da1ea1e5960fb386b2bbc3587e808 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:22 +0530
Subject: cpufreq: s3c: use cpufreq_generic_init()

Use generic cpufreq_generic_init() routine instead of replicating the same code
here.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/s3c2416-cpufreq.c |  6 ++----
 drivers/cpufreq/s3c24xx-cpufreq.c | 13 +------------
 drivers/cpufreq/s3c64xx-cpufreq.c |  5 ++---
 3 files changed, 5 insertions(+), 19 deletions(-)

diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c
index 22c4c2d837bd..26a35d137157 100644
--- a/drivers/cpufreq/s3c2416-cpufreq.c
+++ b/drivers/cpufreq/s3c2416-cpufreq.c
@@ -479,10 +479,8 @@ static int __init s3c2416_cpufreq_driver_init(struct cpufreq_policy *policy)
 	/* Datasheet says PLL stabalisation time must be at least 300us,
 	 * so but add some fudge. (reference in LOCKCON0 register description)
 	 */
-	policy->cpuinfo.transition_latency = (500 * 1000) +
-					     s3c_freq->regulator_latency;
-
-	ret = cpufreq_table_validate_and_show(policy, s3c_freq->freq_table);
+	ret = cpufreq_generic_init(policy, s3c_freq->freq_table,
+			(500 * 1000) + s3c_freq->regulator_latency);
 	if (ret)
 		goto err_freq_table;
 
diff --git a/drivers/cpufreq/s3c24xx-cpufreq.c b/drivers/cpufreq/s3c24xx-cpufreq.c
index e0fbaefc69a7..485088253358 100644
--- a/drivers/cpufreq/s3c24xx-cpufreq.c
+++ b/drivers/cpufreq/s3c24xx-cpufreq.c
@@ -373,18 +373,7 @@ struct clk *s3c_cpufreq_clk_get(struct device *dev, const char *name)
 
 static int s3c_cpufreq_init(struct cpufreq_policy *policy)
 {
-	printk(KERN_INFO "%s: initialising policy %p\n", __func__, policy);
-
-	if (policy->cpu != 0)
-		return -EINVAL;
-
-	/* feed the latency information from the cpu driver */
-	policy->cpuinfo.transition_latency = cpu_cur.info->latency;
-
-	if (ftab)
-		return cpufreq_table_validate_and_show(policy, ftab);
-
-	return 0;
+	return cpufreq_generic_init(policy, ftab, cpu_cur.info->latency);
 }
 
 static int __init s3c_cpufreq_initclks(void)
diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c
index a66cfa3e54a1..16dc315d31e6 100644
--- a/drivers/cpufreq/s3c64xx-cpufreq.c
+++ b/drivers/cpufreq/s3c64xx-cpufreq.c
@@ -239,9 +239,8 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy)
 	 * the PLLs, which we don't currently) is ~300us worst case,
 	 * but add some fudge.
 	 */
-	policy->cpuinfo.transition_latency = (500 * 1000) + regulator_latency;
-
-	ret = cpufreq_table_validate_and_show(policy, s3c64xx_freq_table);
+	ret = cpufreq_generic_init(policy, s3c64xx_freq_table,
+			(500 * 1000) + regulator_latency);
 	if (ret != 0) {
 		pr_err("Failed to configure frequency table: %d\n",
 		       ret);
-- 
cgit 


From c3d7d87d7f6fc35f1a97b628229e06bb0dffa0bf Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:29:23 +0530
Subject: cpufreq: s5pv210: use cpufreq_generic_init()

Use generic cpufreq_generic_init() routine instead of replicating the same code
here.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/s5pv210-cpufreq.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/cpufreq/s5pv210-cpufreq.c b/drivers/cpufreq/s5pv210-cpufreq.c
index 30d9bb7a393e..600b4f472e28 100644
--- a/drivers/cpufreq/s5pv210-cpufreq.c
+++ b/drivers/cpufreq/s5pv210-cpufreq.c
@@ -543,9 +543,7 @@ static int __init s5pv210_cpu_init(struct cpufreq_policy *policy)
 	s5pv210_dram_conf[1].refresh = (__raw_readl(S5P_VA_DMC1 + 0x30) * 1000);
 	s5pv210_dram_conf[1].freq = clk_get_rate(dmc1_clk);
 
-	policy->cpuinfo.transition_latency = 40000;
-
-	return cpufreq_table_validate_and_show(policy, s5pv210_freq_table);
+	return cpufreq_generic_init(policy, s5pv210_freq_table, 40000);
 
 out_dmc1:
 	clk_put(dmc0_clk);
-- 
cgit 


From 9b30367bbf3353a7dfc34ed800b7ff03cb35252b Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:42:09 +0530
Subject: cpufreq: sa11x0: use cpufreq_generic_init()

Use generic cpufreq_generic_init() routine instead of replicating the same code
here.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/sa1100-cpufreq.c | 6 +-----
 drivers/cpufreq/sa1110-cpufreq.c | 6 +-----
 2 files changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/cpufreq/sa1100-cpufreq.c b/drivers/cpufreq/sa1100-cpufreq.c
index a1d1bb72bac4..b282cea47e62 100644
--- a/drivers/cpufreq/sa1100-cpufreq.c
+++ b/drivers/cpufreq/sa1100-cpufreq.c
@@ -218,11 +218,7 @@ static int sa1100_target(struct cpufreq_policy *policy,
 
 static int __init sa1100_cpu_init(struct cpufreq_policy *policy)
 {
-	if (policy->cpu != 0)
-		return -EINVAL;
-	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
-
-	return cpufreq_table_validate_and_show(policy, sa11x0_freq_table);
+	return cpufreq_generic_init(policy, sa11x0_freq_table, CPUFREQ_ETERNAL);
 }
 
 static struct cpufreq_driver sa1100_driver __refdata = {
diff --git a/drivers/cpufreq/sa1110-cpufreq.c b/drivers/cpufreq/sa1110-cpufreq.c
index 9da940e66b7e..bca04c0b4a73 100644
--- a/drivers/cpufreq/sa1110-cpufreq.c
+++ b/drivers/cpufreq/sa1110-cpufreq.c
@@ -332,11 +332,7 @@ static int sa1110_target(struct cpufreq_policy *policy,
 
 static int __init sa1110_cpu_init(struct cpufreq_policy *policy)
 {
-	if (policy->cpu != 0)
-		return -EINVAL;
-	policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
-
-	return cpufreq_table_validate_and_show(policy, sa11x0_freq_table);
+	return cpufreq_generic_init(policy, sa11x0_freq_table, CPUFREQ_ETERNAL);
 }
 
 /* sa1110_driver needs __refdata because it must remain after init registers
-- 
cgit 


From 7a936bd085372842fd1c9397a80b74e62026c89e Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:42:10 +0530
Subject: cpufreq: spear: use cpufreq_generic_init()

Use generic cpufreq_generic_init() routine instead of replicating the same code
here.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/spear-cpufreq.c | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/cpufreq/spear-cpufreq.c b/drivers/cpufreq/spear-cpufreq.c
index aacdb615e4ed..2a031587f52c 100644
--- a/drivers/cpufreq/spear-cpufreq.c
+++ b/drivers/cpufreq/spear-cpufreq.c
@@ -171,18 +171,8 @@ static int spear_cpufreq_target(struct cpufreq_policy *policy,
 
 static int spear_cpufreq_init(struct cpufreq_policy *policy)
 {
-	int ret;
-
-	ret = cpufreq_table_validate_and_show(policy, spear_cpufreq.freq_tbl);
-	if (ret) {
-		pr_err("cpufreq_table_validate_and_show() failed");
-		return ret;
-	}
-
-	policy->cpuinfo.transition_latency = spear_cpufreq.transition_latency;
-	cpumask_setall(policy->cpus);
-
-	return 0;
+	return cpufreq_generic_init(policy, spear_cpufreq.freq_tbl,
+			spear_cpufreq.transition_latency);
 }
 
 static struct cpufreq_driver spear_cpufreq_driver = {
-- 
cgit 


From 99d428cf0bcdbbbdeb622c338cd5ab72189e8d22 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 20:42:11 +0530
Subject: cpufreq: tegra: use cpufreq_generic_init()

Use generic cpufreq_generic_init() routine instead of replicating the same code
here.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/tegra-cpufreq.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c
index 9c32b23322bd..32483ef63d53 100644
--- a/drivers/cpufreq/tegra-cpufreq.c
+++ b/drivers/cpufreq/tegra-cpufreq.c
@@ -204,19 +204,23 @@ static struct notifier_block tegra_cpu_pm_notifier = {
 
 static int tegra_cpu_init(struct cpufreq_policy *policy)
 {
+	int ret;
+
 	if (policy->cpu >= NUM_CPUS)
 		return -EINVAL;
 
 	clk_prepare_enable(emc_clk);
 	clk_prepare_enable(cpu_clk);
 
-	cpufreq_table_validate_and_show(policy, freq_table);
 	target_cpu_speed[policy->cpu] = tegra_getspeed(policy->cpu);
 
 	/* FIXME: what's the actual transition time? */
-	policy->cpuinfo.transition_latency = 300 * 1000;
-
-	cpumask_copy(policy->cpus, cpu_possible_mask);
+	ret = cpufreq_generic_init(policy, freq_table, 300 * 1000);
+	if (ret) {
+		clk_disable_unprepare(cpu_clk);
+		clk_disable_unprepare(emc_clk);
+		return ret;
+	}
 
 	if (policy->cpu == 0)
 		register_pm_notifier(&tegra_cpu_pm_notifier);
@@ -227,6 +231,7 @@ static int tegra_cpu_init(struct cpufreq_policy *policy)
 static int tegra_cpu_exit(struct cpufreq_policy *policy)
 {
 	cpufreq_frequency_table_put_attr(policy->cpu);
+	clk_disable_unprepare(cpu_clk);
 	clk_disable_unprepare(emc_clk);
 	return 0;
 }
-- 
cgit 


From e50322a59a3fc42245ae6159095d9ba635da1a03 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Sat, 12 Oct 2013 22:16:05 +0200
Subject: cpufreq: sa11x0: Fix build breakage after "Expose frequency table"

Fix build breakage introduced by commit 22c8b4f (cpufreq: sa11x0:
Expose frequency table).

[rjw: Changelog]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/arm/mach-sa1100/generic.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm/mach-sa1100/generic.h b/arch/arm/mach-sa1100/generic.h
index 39d56a676566..cbdfae744dc5 100644
--- a/arch/arm/mach-sa1100/generic.h
+++ b/arch/arm/mach-sa1100/generic.h
@@ -3,6 +3,7 @@
  *
  * Author: Nicolas Pitre
  */
+#include <linux/cpufreq.h>
 #include <linux/reboot.h>
 
 extern void sa1100_timer_init(void);
@@ -19,8 +20,6 @@ extern void sa11x0_init_late(void);
 extern void sa1110_mb_enable(void);
 extern void sa1110_mb_disable(void);
 
-struct cpufreq_policy;
-
 extern struct cpufreq_frequency_table sa11x0_freq_table[];
 extern unsigned int sa11x0_freq_to_ppcr(unsigned int khz);
 extern unsigned int sa11x0_getspeed(unsigned int cpu);
-- 
cgit 


From 5915a3db0c3983f1cd5e046bf70086c7d0c686d2 Mon Sep 17 00:00:00 2001
From: Aaron Lu <aaron.lu@intel.com>
Date: Fri, 11 Oct 2013 21:27:43 +0800
Subject: backlight: introduce backlight_device_registered

Introduce a new API for modules to query if a specific type of backlight
device has been registered. This is useful for some backlight device
provider module (e.g. ACPI video) to know if a native control
interface(e.g. the interface created by i915) is available and then do
things accordingly (e.g. avoid registering its own on Win8 systems).

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/video/backlight/backlight.c | 31 +++++++++++++++++++++++++++++++
 include/linux/backlight.h           |  4 ++++
 2 files changed, 35 insertions(+)

diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c
index 94a403a9717a..5d05555fe841 100644
--- a/drivers/video/backlight/backlight.c
+++ b/drivers/video/backlight/backlight.c
@@ -21,6 +21,9 @@
 #include <asm/backlight.h>
 #endif
 
+static struct list_head backlight_dev_list;
+static struct mutex backlight_dev_list_mutex;
+
 static const char *const backlight_types[] = {
 	[BACKLIGHT_RAW] = "raw",
 	[BACKLIGHT_PLATFORM] = "platform",
@@ -349,10 +352,32 @@ struct backlight_device *backlight_device_register(const char *name,
 	mutex_unlock(&pmac_backlight_mutex);
 #endif
 
+	mutex_lock(&backlight_dev_list_mutex);
+	list_add(&new_bd->entry, &backlight_dev_list);
+	mutex_unlock(&backlight_dev_list_mutex);
+
 	return new_bd;
 }
 EXPORT_SYMBOL(backlight_device_register);
 
+bool backlight_device_registered(enum backlight_type type)
+{
+	bool found = false;
+	struct backlight_device *bd;
+
+	mutex_lock(&backlight_dev_list_mutex);
+	list_for_each_entry(bd, &backlight_dev_list, entry) {
+		if (bd->props.type == type) {
+			found = true;
+			break;
+		}
+	}
+	mutex_unlock(&backlight_dev_list_mutex);
+
+	return found;
+}
+EXPORT_SYMBOL(backlight_device_registered);
+
 /**
  * backlight_device_unregister - unregisters a backlight device object.
  * @bd: the backlight device object to be unregistered and freed.
@@ -364,6 +389,10 @@ void backlight_device_unregister(struct backlight_device *bd)
 	if (!bd)
 		return;
 
+	mutex_lock(&backlight_dev_list_mutex);
+	list_del(&bd->entry);
+	mutex_unlock(&backlight_dev_list_mutex);
+
 #ifdef CONFIG_PMAC_BACKLIGHT
 	mutex_lock(&pmac_backlight_mutex);
 	if (pmac_backlight == bd)
@@ -499,6 +528,8 @@ static int __init backlight_class_init(void)
 
 	backlight_class->dev_groups = bl_device_groups;
 	backlight_class->pm = &backlight_class_dev_pm_ops;
+	INIT_LIST_HEAD(&backlight_dev_list);
+	mutex_init(&backlight_dev_list_mutex);
 	return 0;
 }
 
diff --git a/include/linux/backlight.h b/include/linux/backlight.h
index 53b77949c79d..5f9cd963213d 100644
--- a/include/linux/backlight.h
+++ b/include/linux/backlight.h
@@ -100,6 +100,9 @@ struct backlight_device {
 	/* The framebuffer notifier block */
 	struct notifier_block fb_notif;
 
+	/* list entry of all registered backlight devices */
+	struct list_head entry;
+
 	struct device dev;
 };
 
@@ -123,6 +126,7 @@ extern void devm_backlight_device_unregister(struct device *dev,
 					struct backlight_device *bd);
 extern void backlight_force_update(struct backlight_device *bd,
 				   enum backlight_update_reason reason);
+extern bool backlight_device_registered(enum backlight_type type);
 
 #define to_backlight_device(obj) container_of(obj, struct backlight_device, dev)
 
-- 
cgit 


From 67b662e189f469c6d373f81d76b0ef0495940e99 Mon Sep 17 00:00:00 2001
From: Aaron Lu <aaron.lu@intel.com>
Date: Fri, 11 Oct 2013 21:27:44 +0800
Subject: ACPI / video: seperate backlight control and event interface

The backlight control and event delivery functionality provided by ACPI
video module is mixed together and registered all during video device
enumeration time. As a result, the two functionality are also removed
together on module unload time or by the acpi_video_unregister function.
The two functionalities are actually independent and one may be useful
while the other one may be broken, so it is desirable to seperate the
two functionalities such that it is clear and easy to disable one
functionality without affecting the other one.

APIs to selectively remove backlight control interface and/or event
delivery functionality can be easily added once needed.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/video.c | 434 +++++++++++++++++++++++++++++----------------------
 1 file changed, 245 insertions(+), 189 deletions(-)

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index aebcf6355df4..3bd1eaa4ef90 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -89,6 +89,8 @@ static bool use_bios_initial_backlight = 1;
 module_param(use_bios_initial_backlight, bool, 0644);
 
 static int register_count;
+static struct mutex video_list_lock;
+static struct list_head video_bus_head;
 static int acpi_video_bus_add(struct acpi_device *device);
 static int acpi_video_bus_remove(struct acpi_device *device);
 static void acpi_video_bus_notify(struct acpi_device *device, u32 event);
@@ -157,6 +159,7 @@ struct acpi_video_bus {
 	struct acpi_video_bus_flags flags;
 	struct list_head video_device_list;
 	struct mutex device_list_lock;	/* protects video_device_list */
+	struct list_head entry;
 	struct input_dev *input;
 	char phys[32];	/* for input device */
 	struct notifier_block pm_nb;
@@ -884,79 +887,6 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
 
 	if (acpi_has_method(device->dev->handle, "_DDC"))
 		device->cap._DDC = 1;
-
-	if (acpi_video_backlight_support()) {
-		struct backlight_properties props;
-		struct pci_dev *pdev;
-		acpi_handle acpi_parent;
-		struct device *parent = NULL;
-		int result;
-		static int count;
-		char *name;
-
-		result = acpi_video_init_brightness(device);
-		if (result)
-			return;
-		name = kasprintf(GFP_KERNEL, "acpi_video%d", count);
-		if (!name)
-			return;
-		count++;
-
-		acpi_get_parent(device->dev->handle, &acpi_parent);
-
-		pdev = acpi_get_pci_dev(acpi_parent);
-		if (pdev) {
-			parent = &pdev->dev;
-			pci_dev_put(pdev);
-		}
-
-		memset(&props, 0, sizeof(struct backlight_properties));
-		props.type = BACKLIGHT_FIRMWARE;
-		props.max_brightness = device->brightness->count - 3;
-		device->backlight = backlight_device_register(name,
-							      parent,
-							      device,
-							      &acpi_backlight_ops,
-							      &props);
-		kfree(name);
-		if (IS_ERR(device->backlight))
-			return;
-
-		/*
-		 * Save current brightness level in case we have to restore it
-		 * before acpi_video_device_lcd_set_level() is called next time.
-		 */
-		device->backlight->props.brightness =
-				acpi_video_get_brightness(device->backlight);
-
-		device->cooling_dev = thermal_cooling_device_register("LCD",
-					device->dev, &video_cooling_ops);
-		if (IS_ERR(device->cooling_dev)) {
-			/*
-			 * Set cooling_dev to NULL so we don't crash trying to
-			 * free it.
-			 * Also, why the hell we are returning early and
-			 * not attempt to register video output if cooling
-			 * device registration failed?
-			 * -- dtor
-			 */
-			device->cooling_dev = NULL;
-			return;
-		}
-
-		dev_info(&device->dev->dev, "registered as cooling_device%d\n",
-			 device->cooling_dev->id);
-		result = sysfs_create_link(&device->dev->dev.kobj,
-				&device->cooling_dev->device.kobj,
-				"thermal_cooling");
-		if (result)
-			printk(KERN_ERR PREFIX "Create sysfs link\n");
-		result = sysfs_create_link(&device->cooling_dev->device.kobj,
-				&device->dev->dev.kobj, "device");
-		if (result)
-			printk(KERN_ERR PREFIX "Create sysfs link\n");
-
-	}
 }
 
 /*
@@ -1143,13 +1073,6 @@ acpi_video_bus_get_one_device(struct acpi_device *device,
 	acpi_video_device_bind(video, data);
 	acpi_video_device_find_cap(data);
 
-	status = acpi_install_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
-					     acpi_video_device_notify, data);
-	if (ACPI_FAILURE(status))
-		dev_err(&device->dev, "Error installing notify handler\n");
-	else
-		data->flags.notify = 1;
-
 	mutex_lock(&video->device_list_lock);
 	list_add_tail(&data->entry, &video->video_device_list);
 	mutex_unlock(&video->device_list_lock);
@@ -1454,64 +1377,6 @@ acpi_video_bus_get_devices(struct acpi_video_bus *video,
 	return status;
 }
 
-static int acpi_video_bus_put_one_device(struct acpi_video_device *device)
-{
-	acpi_status status;
-
-	if (!device || !device->video)
-		return -ENOENT;
-
-	if (device->flags.notify) {
-		status = acpi_remove_notify_handler(device->dev->handle,
-				ACPI_DEVICE_NOTIFY, acpi_video_device_notify);
-		if (ACPI_FAILURE(status))
-			dev_err(&device->dev->dev,
-					"Can't remove video notify handler\n");
-	}
-
-	if (device->backlight) {
-		backlight_device_unregister(device->backlight);
-		device->backlight = NULL;
-	}
-	if (device->cooling_dev) {
-		sysfs_remove_link(&device->dev->dev.kobj,
-				  "thermal_cooling");
-		sysfs_remove_link(&device->cooling_dev->device.kobj,
-				  "device");
-		thermal_cooling_device_unregister(device->cooling_dev);
-		device->cooling_dev = NULL;
-	}
-
-	return 0;
-}
-
-static int acpi_video_bus_put_devices(struct acpi_video_bus *video)
-{
-	int status;
-	struct acpi_video_device *dev, *next;
-
-	mutex_lock(&video->device_list_lock);
-
-	list_for_each_entry_safe(dev, next, &video->video_device_list, entry) {
-
-		status = acpi_video_bus_put_one_device(dev);
-		if (ACPI_FAILURE(status))
-			printk(KERN_WARNING PREFIX
-			       "hhuuhhuu bug in acpi video driver.\n");
-
-		if (dev->brightness) {
-			kfree(dev->brightness->levels);
-			kfree(dev->brightness);
-		}
-		list_del(&dev->entry);
-		kfree(dev);
-	}
-
-	mutex_unlock(&video->device_list_lock);
-
-	return 0;
-}
-
 /* acpi_video interface */
 
 /*
@@ -1536,7 +1401,7 @@ static void acpi_video_bus_notify(struct acpi_device *device, u32 event)
 	struct input_dev *input;
 	int keycode = 0;
 
-	if (!video)
+	if (!video || !video->input)
 		return;
 
 	input = video->input;
@@ -1691,12 +1556,236 @@ acpi_video_bus_match(acpi_handle handle, u32 level, void *context,
 	return AE_OK;
 }
 
+static void acpi_video_dev_register_backlight(struct acpi_video_device *device)
+{
+	if (acpi_video_backlight_support()) {
+		struct backlight_properties props;
+		struct pci_dev *pdev;
+		acpi_handle acpi_parent;
+		struct device *parent = NULL;
+		int result;
+		static int count;
+		char *name;
+
+		result = acpi_video_init_brightness(device);
+		if (result)
+			return;
+		name = kasprintf(GFP_KERNEL, "acpi_video%d", count);
+		if (!name)
+			return;
+		count++;
+
+		acpi_get_parent(device->dev->handle, &acpi_parent);
+
+		pdev = acpi_get_pci_dev(acpi_parent);
+		if (pdev) {
+			parent = &pdev->dev;
+			pci_dev_put(pdev);
+		}
+
+		memset(&props, 0, sizeof(struct backlight_properties));
+		props.type = BACKLIGHT_FIRMWARE;
+		props.max_brightness = device->brightness->count - 3;
+		device->backlight = backlight_device_register(name,
+							      parent,
+							      device,
+							      &acpi_backlight_ops,
+							      &props);
+		kfree(name);
+		if (IS_ERR(device->backlight))
+			return;
+
+		/*
+		 * Save current brightness level in case we have to restore it
+		 * before acpi_video_device_lcd_set_level() is called next time.
+		 */
+		device->backlight->props.brightness =
+				acpi_video_get_brightness(device->backlight);
+
+		device->cooling_dev = thermal_cooling_device_register("LCD",
+					device->dev, &video_cooling_ops);
+		if (IS_ERR(device->cooling_dev)) {
+			/*
+			 * Set cooling_dev to NULL so we don't crash trying to
+			 * free it.
+			 * Also, why the hell we are returning early and
+			 * not attempt to register video output if cooling
+			 * device registration failed?
+			 * -- dtor
+			 */
+			device->cooling_dev = NULL;
+			return;
+		}
+
+		dev_info(&device->dev->dev, "registered as cooling_device%d\n",
+			 device->cooling_dev->id);
+		result = sysfs_create_link(&device->dev->dev.kobj,
+				&device->cooling_dev->device.kobj,
+				"thermal_cooling");
+		if (result)
+			printk(KERN_ERR PREFIX "Create sysfs link\n");
+		result = sysfs_create_link(&device->cooling_dev->device.kobj,
+				&device->dev->dev.kobj, "device");
+		if (result)
+			printk(KERN_ERR PREFIX "Create sysfs link\n");
+	}
+}
+
+static int acpi_video_bus_register_backlight(struct acpi_video_bus *video)
+{
+	struct acpi_video_device *dev;
+
+	mutex_lock(&video->device_list_lock);
+	list_for_each_entry(dev, &video->video_device_list, entry)
+		acpi_video_dev_register_backlight(dev);
+	mutex_unlock(&video->device_list_lock);
+
+	video->pm_nb.notifier_call = acpi_video_resume;
+	video->pm_nb.priority = 0;
+	return register_pm_notifier(&video->pm_nb);
+}
+
+static void acpi_video_dev_unregister_backlight(struct acpi_video_device *device)
+{
+	if (device->backlight) {
+		backlight_device_unregister(device->backlight);
+		device->backlight = NULL;
+	}
+	if (device->brightness) {
+		kfree(device->brightness->levels);
+		kfree(device->brightness);
+		device->brightness = NULL;
+	}
+	if (device->cooling_dev) {
+		sysfs_remove_link(&device->dev->dev.kobj, "thermal_cooling");
+		sysfs_remove_link(&device->cooling_dev->device.kobj, "device");
+		thermal_cooling_device_unregister(device->cooling_dev);
+		device->cooling_dev = NULL;
+	}
+}
+
+static int acpi_video_bus_unregister_backlight(struct acpi_video_bus *video)
+{
+	struct acpi_video_device *dev;
+	int error = unregister_pm_notifier(&video->pm_nb);
+
+	mutex_lock(&video->device_list_lock);
+	list_for_each_entry(dev, &video->video_device_list, entry)
+		acpi_video_dev_unregister_backlight(dev);
+	mutex_unlock(&video->device_list_lock);
+
+	return error;
+}
+
+static void acpi_video_dev_add_notify_handler(struct acpi_video_device *device)
+{
+	acpi_status status;
+	struct acpi_device *adev = device->dev;
+
+	status = acpi_install_notify_handler(adev->handle, ACPI_DEVICE_NOTIFY,
+					     acpi_video_device_notify, device);
+	if (ACPI_FAILURE(status))
+		dev_err(&adev->dev, "Error installing notify handler\n");
+	else
+		device->flags.notify = 1;
+}
+
+static int acpi_video_bus_add_notify_handler(struct acpi_video_bus *video)
+{
+	struct input_dev *input;
+	struct acpi_video_device *dev;
+	int error;
+
+	video->input = input = input_allocate_device();
+	if (!input) {
+		error = -ENOMEM;
+		goto out;
+	}
+
+	error = acpi_video_bus_start_devices(video);
+	if (error)
+		goto err_free_input;
+
+	snprintf(video->phys, sizeof(video->phys),
+			"%s/video/input0", acpi_device_hid(video->device));
+
+	input->name = acpi_device_name(video->device);
+	input->phys = video->phys;
+	input->id.bustype = BUS_HOST;
+	input->id.product = 0x06;
+	input->dev.parent = &video->device->dev;
+	input->evbit[0] = BIT(EV_KEY);
+	set_bit(KEY_SWITCHVIDEOMODE, input->keybit);
+	set_bit(KEY_VIDEO_NEXT, input->keybit);
+	set_bit(KEY_VIDEO_PREV, input->keybit);
+	set_bit(KEY_BRIGHTNESS_CYCLE, input->keybit);
+	set_bit(KEY_BRIGHTNESSUP, input->keybit);
+	set_bit(KEY_BRIGHTNESSDOWN, input->keybit);
+	set_bit(KEY_BRIGHTNESS_ZERO, input->keybit);
+	set_bit(KEY_DISPLAY_OFF, input->keybit);
+
+	error = input_register_device(input);
+	if (error)
+		goto err_stop_dev;
+
+	mutex_lock(&video->device_list_lock);
+	list_for_each_entry(dev, &video->video_device_list, entry)
+		acpi_video_dev_add_notify_handler(dev);
+	mutex_unlock(&video->device_list_lock);
+
+	return 0;
+
+err_stop_dev:
+	acpi_video_bus_stop_devices(video);
+err_free_input:
+	input_free_device(input);
+	video->input = NULL;
+out:
+	return error;
+}
+
+static void acpi_video_dev_remove_notify_handler(struct acpi_video_device *dev)
+{
+	if (dev->flags.notify) {
+		acpi_remove_notify_handler(dev->dev->handle, ACPI_DEVICE_NOTIFY,
+					   acpi_video_device_notify);
+		dev->flags.notify = 0;
+	}
+}
+
+static void acpi_video_bus_remove_notify_handler(struct acpi_video_bus *video)
+{
+	struct acpi_video_device *dev;
+
+	mutex_lock(&video->device_list_lock);
+	list_for_each_entry(dev, &video->video_device_list, entry)
+		acpi_video_dev_remove_notify_handler(dev);
+	mutex_unlock(&video->device_list_lock);
+
+	acpi_video_bus_stop_devices(video);
+	input_unregister_device(video->input);
+	video->input = NULL;
+}
+
+static int acpi_video_bus_put_devices(struct acpi_video_bus *video)
+{
+	struct acpi_video_device *dev, *next;
+
+	mutex_lock(&video->device_list_lock);
+	list_for_each_entry_safe(dev, next, &video->video_device_list, entry) {
+		list_del(&dev->entry);
+		kfree(dev);
+	}
+	mutex_unlock(&video->device_list_lock);
+
+	return 0;
+}
+
 static int instance;
 
 static int acpi_video_bus_add(struct acpi_device *device)
 {
 	struct acpi_video_bus *video;
-	struct input_dev *input;
 	int error;
 	acpi_status status;
 
@@ -1748,62 +1837,24 @@ static int acpi_video_bus_add(struct acpi_device *device)
 	if (error)
 		goto err_put_video;
 
-	video->input = input = input_allocate_device();
-	if (!input) {
-		error = -ENOMEM;
-		goto err_put_video;
-	}
-
-	error = acpi_video_bus_start_devices(video);
-	if (error)
-		goto err_free_input_dev;
-
-	snprintf(video->phys, sizeof(video->phys),
-		"%s/video/input0", acpi_device_hid(video->device));
-
-	input->name = acpi_device_name(video->device);
-	input->phys = video->phys;
-	input->id.bustype = BUS_HOST;
-	input->id.product = 0x06;
-	input->dev.parent = &device->dev;
-	input->evbit[0] = BIT(EV_KEY);
-	set_bit(KEY_SWITCHVIDEOMODE, input->keybit);
-	set_bit(KEY_VIDEO_NEXT, input->keybit);
-	set_bit(KEY_VIDEO_PREV, input->keybit);
-	set_bit(KEY_BRIGHTNESS_CYCLE, input->keybit);
-	set_bit(KEY_BRIGHTNESSUP, input->keybit);
-	set_bit(KEY_BRIGHTNESSDOWN, input->keybit);
-	set_bit(KEY_BRIGHTNESS_ZERO, input->keybit);
-	set_bit(KEY_DISPLAY_OFF, input->keybit);
-
 	printk(KERN_INFO PREFIX "%s [%s] (multi-head: %s  rom: %s  post: %s)\n",
 	       ACPI_VIDEO_DEVICE_NAME, acpi_device_bid(device),
 	       video->flags.multihead ? "yes" : "no",
 	       video->flags.rom ? "yes" : "no",
 	       video->flags.post ? "yes" : "no");
+	mutex_lock(&video_list_lock);
+	list_add_tail(&video->entry, &video_bus_head);
+	mutex_unlock(&video_list_lock);
 
-	video->pm_nb.notifier_call = acpi_video_resume;
-	video->pm_nb.priority = 0;
-	error = register_pm_notifier(&video->pm_nb);
-	if (error)
-		goto err_stop_video;
-
-	error = input_register_device(input);
-	if (error)
-		goto err_unregister_pm_notifier;
+	acpi_video_bus_register_backlight(video);
+	acpi_video_bus_add_notify_handler(video);
 
 	return 0;
 
- err_unregister_pm_notifier:
-	unregister_pm_notifier(&video->pm_nb);
- err_stop_video:
-	acpi_video_bus_stop_devices(video);
- err_free_input_dev:
-	input_free_device(input);
- err_put_video:
+err_put_video:
 	acpi_video_bus_put_devices(video);
 	kfree(video->attached_array);
- err_free_video:
+err_free_video:
 	kfree(video);
 	device->driver_data = NULL;
 
@@ -1820,12 +1871,14 @@ static int acpi_video_bus_remove(struct acpi_device *device)
 
 	video = acpi_driver_data(device);
 
-	unregister_pm_notifier(&video->pm_nb);
-
-	acpi_video_bus_stop_devices(video);
+	acpi_video_bus_remove_notify_handler(video);
+	acpi_video_bus_unregister_backlight(video);
 	acpi_video_bus_put_devices(video);
 
-	input_unregister_device(video->input);
+	mutex_lock(&video_list_lock);
+	list_del(&video->entry);
+	mutex_unlock(&video_list_lock);
+
 	kfree(video->attached_array);
 	kfree(video);
 
@@ -1874,6 +1927,9 @@ int acpi_video_register(void)
 		return 0;
 	}
 
+	mutex_init(&video_list_lock);
+	INIT_LIST_HEAD(&video_bus_head);
+
 	result = acpi_bus_register_driver(&acpi_video_bus);
 	if (result < 0)
 		return -ENODEV;
-- 
cgit 


From fbc9fe1b4f222a7c575e3bd8e9defe59c6190a04 Mon Sep 17 00:00:00 2001
From: Aaron Lu <aaron.lu@intel.com>
Date: Fri, 11 Oct 2013 21:27:45 +0800
Subject: ACPI / video: Do not register backlight if win8 and native interface
 exists

According to Matthew Garrett, "Windows 8 leaves backlight control up
to individual graphics drivers rather than making ACPI calls itself.
There's plenty of evidence to suggest that the Intel driver for
Windows [8] doesn't use the ACPI interface, including the fact that
it's broken on a bunch of machines when the OS claims to support
Windows 8.  The simplest thing to do appears to be to disable the
ACPI backlight interface on these systems".

So for Win8 systems, if there is native backlight control interface
registered by GPU driver, ACPI video does not need to register its own.
Since there are systems that don't work well with this approach, a
parameter for video module named use_native_backlight is introduced and
has the value of false by default. For users who have a broken ACPI
video backlight interface, video.use_native_backlight=1 is needed in
kernel cmdline.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/internal.h     |  4 +---
 drivers/acpi/video.c        | 25 ++++++++++++++++++++-----
 drivers/acpi/video_detect.c |  4 ++--
 3 files changed, 23 insertions(+), 10 deletions(-)

diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 20f423337e1f..e9304dc7ebfa 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -169,9 +169,7 @@ int acpi_create_platform_device(struct acpi_device *adev,
 					Video
   -------------------------------------------------------------------------- */
 #if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
-bool acpi_video_backlight_quirks(void);
-#else
-static inline bool acpi_video_backlight_quirks(void) { return false; }
+bool acpi_osi_is_win8(void);
 #endif
 
 #endif /* _ACPI_INTERNAL_H_ */
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 3bd1eaa4ef90..d020df5a732a 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -88,6 +88,13 @@ module_param(allow_duplicates, bool, 0644);
 static bool use_bios_initial_backlight = 1;
 module_param(use_bios_initial_backlight, bool, 0644);
 
+/*
+ * For Windows 8 systems: if set ture and the GPU driver has
+ * registered a backlight interface, skip registering ACPI video's.
+ */
+static bool use_native_backlight = false;
+module_param(use_native_backlight, bool, 0644);
+
 static int register_count;
 static struct mutex video_list_lock;
 static struct list_head video_bus_head;
@@ -232,6 +239,14 @@ static int acpi_video_get_next_level(struct acpi_video_device *device,
 static int acpi_video_switch_brightness(struct acpi_video_device *device,
 					 int event);
 
+static bool acpi_video_verify_backlight_support(void)
+{
+	if (acpi_osi_is_win8() && use_native_backlight &&
+	    backlight_device_registered(BACKLIGHT_RAW))
+		return false;
+	return acpi_video_backlight_support();
+}
+
 /* backlight device sysfs support */
 static int acpi_video_get_brightness(struct backlight_device *bd)
 {
@@ -1256,8 +1271,8 @@ acpi_video_switch_brightness(struct acpi_video_device *device, int event)
 	unsigned long long level_current, level_next;
 	int result = -EINVAL;
 
-	/* no warning message if acpi_backlight=vendor is used */
-	if (!acpi_video_backlight_support())
+	/* no warning message if acpi_backlight=vendor or a quirk is used */
+	if (!acpi_video_verify_backlight_support())
 		return 0;
 
 	if (!device->brightness)
@@ -1386,13 +1401,13 @@ acpi_video_bus_get_devices(struct acpi_video_bus *video,
 static int acpi_video_bus_start_devices(struct acpi_video_bus *video)
 {
 	return acpi_video_bus_DOS(video, 0,
-				  acpi_video_backlight_quirks() ? 1 : 0);
+				  acpi_osi_is_win8() ? 1 : 0);
 }
 
 static int acpi_video_bus_stop_devices(struct acpi_video_bus *video)
 {
 	return acpi_video_bus_DOS(video, 0,
-				  acpi_video_backlight_quirks() ? 0 : 1);
+				  acpi_osi_is_win8() ? 0 : 1);
 }
 
 static void acpi_video_bus_notify(struct acpi_device *device, u32 event)
@@ -1558,7 +1573,7 @@ acpi_video_bus_match(acpi_handle handle, u32 level, void *context,
 
 static void acpi_video_dev_register_backlight(struct acpi_video_device *device)
 {
-	if (acpi_video_backlight_support()) {
+	if (acpi_video_verify_backlight_support()) {
 		struct backlight_properties props;
 		struct pci_dev *pdev;
 		acpi_handle acpi_parent;
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 940edbf2fe8f..b6399343de51 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -233,11 +233,11 @@ static void acpi_video_caps_check(void)
 		acpi_video_get_capabilities(NULL);
 }
 
-bool acpi_video_backlight_quirks(void)
+bool acpi_osi_is_win8(void)
 {
 	return acpi_gbl_osi_data >= ACPI_OSI_WIN_8;
 }
-EXPORT_SYMBOL(acpi_video_backlight_quirks);
+EXPORT_SYMBOL(acpi_osi_is_win8);
 
 /* Promote the vendor interface instead of the generic video module.
  * This function allow DMI blacklists to be implemented by externals
-- 
cgit 


From 46445b6b896fd6b9fd8261f1747801dc520d2968 Mon Sep 17 00:00:00 2001
From: Aaron Lu <aaron.lu@intel.com>
Date: Fri, 11 Oct 2013 21:27:46 +0800
Subject: thinkpad-acpi: fix handle locate for video and query of _BCL

The tpacpi_acpi_handle_locate function makes use of acpi_get_devices to
locate handle for ACPI video by HID, the problem is, ACPI video node
doesn't really have HID defined(i.e. no _HID control method is defined
for video device), so.. that function would fail. This can be solved by
enhancing the callback function for acpi_get_devices, where we can use
acpi_device_hid function to check if the ACPI node corresponds to a
video controller.

In addition to that, the _BCL control method only exists under a video
output device node, not a video controller device node. So to evaluate
_BCL, we need the handle of a video output device node, which is child
of the located video controller node from tpacpi_acpi_handle_locate.

The two fix are necessary for some Thinkpad models to emit notification
on backlight hotkey press as a result of evaluation of _BCL.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Tested-by: Igor Gnatenko <i.gnatenko.brain@gmail.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/platform/x86/thinkpad_acpi.c | 31 ++++++++++++++++++++++++-------
 1 file changed, 24 insertions(+), 7 deletions(-)

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 03ca6c139f1a..170f2788ee67 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -700,6 +700,14 @@ static void __init drv_acpi_handle_init(const char *name,
 static acpi_status __init tpacpi_acpi_handle_locate_callback(acpi_handle handle,
 			u32 level, void *context, void **return_value)
 {
+	struct acpi_device *dev;
+	if (!strcmp(context, "video")) {
+		if (acpi_bus_get_device(handle, &dev))
+			return AE_OK;
+		if (strcmp(ACPI_VIDEO_HID, acpi_device_hid(dev)))
+			return AE_OK;
+	}
+
 	*(acpi_handle *)return_value = handle;
 
 	return AE_CTRL_TERMINATE;
@@ -712,10 +720,10 @@ static void __init tpacpi_acpi_handle_locate(const char *name,
 	acpi_status status;
 	acpi_handle device_found;
 
-	BUG_ON(!name || !hid || !handle);
+	BUG_ON(!name || !handle);
 	vdbg_printk(TPACPI_DBG_INIT,
 			"trying to locate ACPI handle for %s, using HID %s\n",
-			name, hid);
+			name, hid ? hid : "NULL");
 
 	memset(&device_found, 0, sizeof(device_found));
 	status = acpi_get_devices(hid, tpacpi_acpi_handle_locate_callback,
@@ -6090,19 +6098,28 @@ static int __init tpacpi_query_bcl_levels(acpi_handle handle)
 {
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 	union acpi_object *obj;
+	struct acpi_device *device, *child;
 	int rc;
 
-	if (ACPI_SUCCESS(acpi_evaluate_object(handle, "_BCL", NULL, &buffer))) {
+	if (acpi_bus_get_device(handle, &device))
+		return 0;
+
+	rc = 0;
+	list_for_each_entry(child, &device->children, node) {
+		acpi_status status = acpi_evaluate_object(child->handle, "_BCL",
+							  NULL, &buffer);
+		if (ACPI_FAILURE(status))
+			continue;
+
 		obj = (union acpi_object *)buffer.pointer;
 		if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) {
 			pr_err("Unknown _BCL data, please report this to %s\n",
-			       TPACPI_MAIL);
+				TPACPI_MAIL);
 			rc = 0;
 		} else {
 			rc = obj->package.count;
 		}
-	} else {
-		return 0;
+		break;
 	}
 
 	kfree(buffer.pointer);
@@ -6118,7 +6135,7 @@ static unsigned int __init tpacpi_check_std_acpi_brightness_support(void)
 	acpi_handle video_device;
 	int bcl_levels = 0;
 
-	tpacpi_acpi_handle_locate("video", ACPI_VIDEO_HID, &video_device);
+	tpacpi_acpi_handle_locate("video", NULL, &video_device);
 	if (video_device)
 		bcl_levels = tpacpi_query_bcl_levels(video_device);
 
-- 
cgit 


From ab0fd674d6cef0904baa511f22613ef6474f8169 Mon Sep 17 00:00:00 2001
From: Lan Tianyu <tianyu.lan@intel.com>
Date: Sat, 12 Oct 2013 21:04:48 +0800
Subject: ACPI / AC: Remove AC's proc directory.

AC's proc directory is not used and so remove it. Prepare for removing
/proc/acpi directory.

Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/ac.c | 129 ++----------------------------------------------------
 1 file changed, 3 insertions(+), 126 deletions(-)

diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 324b5a096eff..b9f0d5f4bba5 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -30,10 +30,6 @@
 #include <linux/types.h>
 #include <linux/dmi.h>
 #include <linux/delay.h>
-#ifdef CONFIG_ACPI_PROCFS_POWER
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#endif
 #include <linux/platform_device.h>
 #include <linux/power_supply.h>
 #include <acpi/acpi_bus.h>
@@ -56,12 +52,6 @@ MODULE_AUTHOR("Paul Diefenbaugh");
 MODULE_DESCRIPTION("ACPI AC Adapter Driver");
 MODULE_LICENSE("GPL");
 
-#ifdef CONFIG_ACPI_PROCFS_POWER
-extern struct proc_dir_entry *acpi_lock_ac_dir(void);
-extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir);
-static int acpi_ac_open_fs(struct inode *inode, struct file *file);
-#endif
-
 static int ac_sleep_before_get_state_ms;
 
 struct acpi_ac {
@@ -73,16 +63,6 @@ struct acpi_ac {
 
 #define to_acpi_ac(x) container_of(x, struct acpi_ac, charger)
 
-#ifdef CONFIG_ACPI_PROCFS_POWER
-static const struct file_operations acpi_ac_fops = {
-	.owner = THIS_MODULE,
-	.open = acpi_ac_open_fs,
-	.read = seq_read,
-	.llseek = seq_lseek,
-	.release = single_release,
-};
-#endif
-
 /* --------------------------------------------------------------------------
                                AC Adapter Management
    -------------------------------------------------------------------------- */
@@ -132,83 +112,6 @@ static enum power_supply_property ac_props[] = {
 	POWER_SUPPLY_PROP_ONLINE,
 };
 
-#ifdef CONFIG_ACPI_PROCFS_POWER
-/* --------------------------------------------------------------------------
-                              FS Interface (/proc)
-   -------------------------------------------------------------------------- */
-
-static struct proc_dir_entry *acpi_ac_dir;
-
-static int acpi_ac_seq_show(struct seq_file *seq, void *offset)
-{
-	struct acpi_ac *ac = seq->private;
-
-
-	if (!ac)
-		return 0;
-
-	if (acpi_ac_get_state(ac)) {
-		seq_puts(seq, "ERROR: Unable to read AC Adapter state\n");
-		return 0;
-	}
-
-	seq_puts(seq, "state:                   ");
-	switch (ac->state) {
-	case ACPI_AC_STATUS_OFFLINE:
-		seq_puts(seq, "off-line\n");
-		break;
-	case ACPI_AC_STATUS_ONLINE:
-		seq_puts(seq, "on-line\n");
-		break;
-	default:
-		seq_puts(seq, "unknown\n");
-		break;
-	}
-
-	return 0;
-}
-
-static int acpi_ac_open_fs(struct inode *inode, struct file *file)
-{
-	return single_open(file, acpi_ac_seq_show, PDE_DATA(inode));
-}
-
-static int acpi_ac_add_fs(struct acpi_ac *ac)
-{
-	struct proc_dir_entry *entry = NULL;
-
-	printk(KERN_WARNING PREFIX "Deprecated procfs I/F for AC is loaded,"
-			" please retry with CONFIG_ACPI_PROCFS_POWER cleared\n");
-	if (!acpi_device_dir(ac->adev)) {
-		acpi_device_dir(ac->adev) =
-			proc_mkdir(acpi_device_bid(ac->adev), acpi_ac_dir);
-		if (!acpi_device_dir(ac->adev))
-			return -ENODEV;
-	}
-
-	/* 'state' [R] */
-	entry = proc_create_data(ACPI_AC_FILE_STATE,
-				 S_IRUGO, acpi_device_dir(ac->adev),
-				 &acpi_ac_fops, ac);
-	if (!entry)
-		return -ENODEV;
-	return 0;
-}
-
-static int acpi_ac_remove_fs(struct acpi_ac *ac)
-{
-
-	if (acpi_device_dir(ac->adev)) {
-		remove_proc_entry(ACPI_AC_FILE_STATE,
-				  acpi_device_dir(ac->adev));
-		remove_proc_entry(acpi_device_bid(ac->adev), acpi_ac_dir);
-		acpi_device_dir(ac->adev) = NULL;
-	}
-
-	return 0;
-}
-#endif
-
 /* --------------------------------------------------------------------------
                                    Driver Model
    -------------------------------------------------------------------------- */
@@ -293,11 +196,6 @@ static int acpi_ac_probe(struct platform_device *pdev)
 	if (result)
 		goto end;
 
-#ifdef CONFIG_ACPI_PROCFS_POWER
-	result = acpi_ac_add_fs(ac);
-	if (result)
-		goto end;
-#endif
 	ac->charger.name = acpi_device_bid(adev);
 	ac->charger.type = POWER_SUPPLY_TYPE_MAINS;
 	ac->charger.properties = ac_props;
@@ -317,13 +215,9 @@ static int acpi_ac_probe(struct platform_device *pdev)
 	       acpi_device_name(adev), acpi_device_bid(adev),
 	       ac->state ? "on-line" : "off-line");
 
-      end:
-	if (result) {
-#ifdef CONFIG_ACPI_PROCFS_POWER
-		acpi_ac_remove_fs(ac);
-#endif
+end:
+	if (result)
 		kfree(ac);
-	}
 
 	dmi_check_system(ac_dmi_table);
 	return result;
@@ -366,10 +260,6 @@ static int acpi_ac_remove(struct platform_device *pdev)
 	if (ac->charger.dev)
 		power_supply_unregister(&ac->charger);
 
-#ifdef CONFIG_ACPI_PROCFS_POWER
-	acpi_ac_remove_fs(ac);
-#endif
-
 	kfree(ac);
 
 	return 0;
@@ -399,19 +289,9 @@ static int __init acpi_ac_init(void)
 	if (acpi_disabled)
 		return -ENODEV;
 
-#ifdef CONFIG_ACPI_PROCFS_POWER
-	acpi_ac_dir = acpi_lock_ac_dir();
-	if (!acpi_ac_dir)
-		return -ENODEV;
-#endif
-
 	result = platform_driver_register(&acpi_ac_driver);
-	if (result < 0) {
-#ifdef CONFIG_ACPI_PROCFS_POWER
-		acpi_unlock_ac_dir(acpi_ac_dir);
-#endif
+	if (result < 0)
 		return -ENODEV;
-	}
 
 	return 0;
 }
@@ -419,9 +299,6 @@ static int __init acpi_ac_init(void)
 static void __exit acpi_ac_exit(void)
 {
 	platform_driver_unregister(&acpi_ac_driver);
-#ifdef CONFIG_ACPI_PROCFS_POWER
-	acpi_unlock_ac_dir(acpi_ac_dir);
-#endif
 }
 module_init(acpi_ac_init);
 module_exit(acpi_ac_exit);
-- 
cgit 


From a8d52f4495f21da3f47f7318301abf6823ec6648 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Mon, 14 Oct 2013 02:55:05 +0200
Subject: ACPI / video: Add Lenovo IdeaPad Yoga 13 to acpi video detect
 blacklist

On the Yoga 13 the backlight control doesn't work via ACPI. (And doesn't
work either with the low-level platform driver ideapad_laptop; but
works correctly via the intel video driver).  This patch hence adds the
Yoga 13 to the ACPI video detect blacklist, to make sure the broken ACPI
backlight device is never exposed to userspace.

Note that this appears unrelated to the Windows 8 backlight issues tracked
here:

https://bugzilla.kernel.org/show_bug.cgi?id=51231
https://bugzilla.kernel.org/show_bug.cgi?id=60682

The Yoga's ACPI backlight controls work neither with nor without
acpi_osi="!Windows 2012" on the kernel command line. It appears that
backlight control via the EC simply is not available at all, regardless
whether done via ACPI or via the vendor driver.

Signed-off-by: Lennart Poettering <lennart@poettering.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/video_detect.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index b6399343de51..84875fd4c74f 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -168,6 +168,14 @@ static struct dmi_system_id video_detect_dmi_table[] = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "UL30A"),
 		},
 	},
+	{
+	.callback = video_detect_force_vendor,
+	.ident = "Lenovo Yoga 13",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+		DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo IdeaPad Yoga 13"),
+		},
+	},
 	{ },
 };
 
-- 
cgit 


From 53f5212121fc3bcd0bccb8841c01e08ca942f333 Mon Sep 17 00:00:00 2001
From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Date: Tue, 15 Oct 2013 19:24:45 -0300
Subject: Bluetooth: Extend state_change() call to report errors too

Instead of creating an new function pointer to report errors we are just
reusing state_change for that and there is a simple reason for this, one
place in the l2cap_core.c code needs, in a locked sk, set both the sk_state
and sk_err. If we create two different functions for this we would need to
release the lock between the two operation putting the socket in non
desired state.

The change is transparent to the l2cap_core.c code, user that only needs
to set the state won't need any modification.

This is another step of an ongoing work to make l2cap_core.c totally
independent from l2cap's struct sock.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/l2cap.h | 2 +-
 net/bluetooth/a2mp.c          | 3 ++-
 net/bluetooth/l2cap_core.c    | 6 ++----
 net/bluetooth/l2cap_sock.c    | 6 +++++-
 4 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 07757a2af942..4ec86cec8914 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -551,7 +551,7 @@ struct l2cap_ops {
 	void			(*teardown) (struct l2cap_chan *chan, int err);
 	void			(*close) (struct l2cap_chan *chan);
 	void			(*state_change) (struct l2cap_chan *chan,
-						 int state);
+						 int state, int err);
 	void			(*ready) (struct l2cap_chan *chan);
 	void			(*defer) (struct l2cap_chan *chan);
 	void			(*resume) (struct l2cap_chan *chan);
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 60ca52819247..6b8cc23787e2 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -672,7 +672,8 @@ static void a2mp_chan_close_cb(struct l2cap_chan *chan)
 	l2cap_chan_put(chan);
 }
 
-static void a2mp_chan_state_change_cb(struct l2cap_chan *chan, int state)
+static void a2mp_chan_state_change_cb(struct l2cap_chan *chan, int state,
+				      int err)
 {
 	struct amp_mgr *mgr = chan->data;
 
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 0c3446da1ec9..df5670d8e11d 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -229,7 +229,7 @@ static void __l2cap_state_change(struct l2cap_chan *chan, int state)
 	       state_to_string(state));
 
 	chan->state = state;
-	chan->ops->state_change(chan, state);
+	chan->ops->state_change(chan, state, 0);
 }
 
 static void l2cap_state_change(struct l2cap_chan *chan, int state)
@@ -243,9 +243,7 @@ static void l2cap_state_change(struct l2cap_chan *chan, int state)
 
 static inline void __l2cap_chan_set_err(struct l2cap_chan *chan, int err)
 {
-	struct sock *sk = chan->sk;
-
-	sk->sk_err = err;
+	chan->ops->state_change(chan, chan->state, err);
 }
 
 static inline void l2cap_chan_set_err(struct l2cap_chan *chan, int err)
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 5ffd75e20bde..0de8a30c06a1 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1072,11 +1072,15 @@ static void l2cap_sock_teardown_cb(struct l2cap_chan *chan, int err)
 	release_sock(sk);
 }
 
-static void l2cap_sock_state_change_cb(struct l2cap_chan *chan, int state)
+static void l2cap_sock_state_change_cb(struct l2cap_chan *chan, int state,
+				       int err)
 {
 	struct sock *sk = chan->data;
 
 	sk->sk_state = state;
+
+	if (err)
+		sk->sk_err = err;
 }
 
 static struct sk_buff *l2cap_sock_alloc_skb_cb(struct l2cap_chan *chan,
-- 
cgit 


From f8e73017c15b007bd519d0049305bb377e8cc1f5 Mon Sep 17 00:00:00 2001
From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Date: Tue, 15 Oct 2013 19:24:46 -0300
Subject: Bluetooth: Add l2cap_state_change_and_error()

l2cap_state_change_and_error() introduces the ability to update a
l2cap_user with changes in channel's state and error code with just one
call. The main reason for this is to avoid race conditions between and
setting the state and then the error. Otherwise we would need to release
the lock between both operations.

This is another step of an ongoing work to make l2cap_core.c totally
independent from l2cap's struct sock.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/l2cap_core.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index df5670d8e11d..f4e02b453984 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -241,9 +241,15 @@ static void l2cap_state_change(struct l2cap_chan *chan, int state)
 	release_sock(sk);
 }
 
-static inline void __l2cap_chan_set_err(struct l2cap_chan *chan, int err)
+static inline void l2cap_state_change_and_error(struct l2cap_chan *chan,
+						int state, int err)
 {
+	struct sock *sk = chan->sk;
+
+	lock_sock(sk);
+	chan->state = state;
 	chan->ops->state_change(chan, chan->state, err);
+	release_sock(sk);
 }
 
 static inline void l2cap_chan_set_err(struct l2cap_chan *chan, int err)
@@ -251,7 +257,7 @@ static inline void l2cap_chan_set_err(struct l2cap_chan *chan, int err)
 	struct sock *sk = chan->sk;
 
 	lock_sock(sk);
-	__l2cap_chan_set_err(chan, err);
+	chan->ops->state_change(chan, chan->state, err);
 	release_sock(sk);
 }
 
@@ -1228,7 +1234,6 @@ static inline int l2cap_mode_supported(__u8 mode, __u32 feat_mask)
 
 static void l2cap_send_disconn_req(struct l2cap_chan *chan, int err)
 {
-	struct sock *sk = chan->sk;
 	struct l2cap_conn *conn = chan->conn;
 	struct l2cap_disconn_req req;
 
@@ -1251,10 +1256,7 @@ static void l2cap_send_disconn_req(struct l2cap_chan *chan, int err)
 	l2cap_send_cmd(conn, l2cap_get_ident(conn), L2CAP_DISCONN_REQ,
 		       sizeof(req), &req);
 
-	lock_sock(sk);
-	__l2cap_state_change(chan, BT_DISCONN);
-	__l2cap_chan_set_err(chan, err);
-	release_sock(sk);
+	l2cap_state_change_and_error(chan, BT_DISCONN, err);
 }
 
 /* ---- L2CAP connections ---- */
-- 
cgit 


From 8d836d71e2223b8961b21112bb4ce89ef8231682 Mon Sep 17 00:00:00 2001
From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Date: Tue, 15 Oct 2013 19:24:47 -0300
Subject: Bluetooth: Access sk_sndtimeo indirectly in l2cap_core.c

As part of the work to remove struct sock from l2cap_core.c and make it
more generic we remove in this commit the direct access to sk->sk_sndtimeo
member. This objective of this change is purely remove sk usage from
l2cap_core.c

Now we have a new l2cap ops to get the current value of sk->sndtimeo. A
l2cap_chan_no_get_sndtimeo was added for users of L2CAP that doesn't need
to set a timeout.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/l2cap.h | 6 ++++++
 net/bluetooth/a2mp.c          | 1 +
 net/bluetooth/l2cap_core.c    | 8 +++-----
 net/bluetooth/l2cap_sock.c    | 8 ++++++++
 4 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 4ec86cec8914..9c6be72b6e4e 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -555,6 +555,7 @@ struct l2cap_ops {
 	void			(*ready) (struct l2cap_chan *chan);
 	void			(*defer) (struct l2cap_chan *chan);
 	void			(*resume) (struct l2cap_chan *chan);
+	long			(*get_sndtimeo) (struct l2cap_chan *chan);
 	struct sk_buff		*(*alloc_skb) (struct l2cap_chan *chan,
 					       unsigned long len, int nb);
 };
@@ -795,6 +796,11 @@ static inline void l2cap_chan_no_defer(struct l2cap_chan *chan)
 {
 }
 
+static inline long l2cap_chan_no_get_sndtimeo(struct l2cap_chan *chan)
+{
+	return 0;
+}
+
 extern bool disable_ertm;
 
 int l2cap_init_sockets(void);
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 6b8cc23787e2..1e9921024a1d 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -710,6 +710,7 @@ static struct l2cap_ops a2mp_chan_ops = {
 	.teardown = l2cap_chan_no_teardown,
 	.ready = l2cap_chan_no_ready,
 	.defer = l2cap_chan_no_defer,
+	.get_sndtimeo = l2cap_chan_no_get_sndtimeo,
 };
 
 static struct l2cap_chan *a2mp_chan_open(struct l2cap_conn *conn, bool locked)
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index f4e02b453984..c6334fc86d1d 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -649,8 +649,7 @@ void l2cap_chan_close(struct l2cap_chan *chan, int reason)
 	case BT_CONFIG:
 		if (chan->chan_type == L2CAP_CHAN_CONN_ORIENTED &&
 		    conn->hcon->type == ACL_LINK) {
-			struct sock *sk = chan->sk;
-			__set_chan_timer(chan, sk->sk_sndtimeo);
+			__set_chan_timer(chan, chan->ops->get_sndtimeo(chan));
 			l2cap_send_disconn_req(chan, reason);
 		} else
 			l2cap_chan_del(chan, reason);
@@ -1764,7 +1763,6 @@ static struct l2cap_chan *l2cap_global_chan_by_psm(int state, __le16 psm,
 int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 		       bdaddr_t *dst, u8 dst_type)
 {
-	struct sock *sk = chan->sk;
 	struct l2cap_conn *conn;
 	struct hci_conn *hcon;
 	struct hci_dev *hdev;
@@ -1876,7 +1874,7 @@ int l2cap_chan_connect(struct l2cap_chan *chan, __le16 psm, u16 cid,
 	hci_conn_drop(hcon);
 
 	l2cap_state_change(chan, BT_CONNECT);
-	__set_chan_timer(chan, sk->sk_sndtimeo);
+	__set_chan_timer(chan, chan->ops->get_sndtimeo(chan));
 
 	if (hcon->state == BT_CONNECTED) {
 		if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED) {
@@ -3817,7 +3815,7 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 
 	dcid = chan->scid;
 
-	__set_chan_timer(chan, sk->sk_sndtimeo);
+	__set_chan_timer(chan, chan->ops->get_sndtimeo(chan));
 
 	chan->ident = cmd->ident;
 
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 0de8a30c06a1..ffa78d3cd8ac 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1136,6 +1136,13 @@ static void l2cap_sock_resume_cb(struct l2cap_chan *chan)
 	sk->sk_state_change(sk);
 }
 
+static long l2cap_sock_get_sndtimeo_cb(struct l2cap_chan *chan)
+{
+	struct sock *sk = chan->data;
+
+	return sk->sk_sndtimeo;
+}
+
 static struct l2cap_ops l2cap_chan_ops = {
 	.name		= "L2CAP Socket Interface",
 	.new_connection	= l2cap_sock_new_connection_cb,
@@ -1146,6 +1153,7 @@ static struct l2cap_ops l2cap_chan_ops = {
 	.ready		= l2cap_sock_ready_cb,
 	.defer		= l2cap_sock_defer_cb,
 	.resume		= l2cap_sock_resume_cb,
+	.get_sndtimeo	= l2cap_sock_get_sndtimeo_cb,
 	.alloc_skb	= l2cap_sock_alloc_skb_cb,
 };
 
-- 
cgit 


From 5ec1bbe549d939ff1ef88e2cc22b2c3b95d76401 Mon Sep 17 00:00:00 2001
From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Date: Tue, 15 Oct 2013 19:24:48 -0300
Subject: Bluetooth: Add chan->ops->set_shutdown()

We need to remove all direct access of struct sock from L2CAP core.
This change is pretty simple and just add a new L2CAP channel callback to
do the work in the L2CAP socket side.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/l2cap.h |  5 +++++
 net/bluetooth/a2mp.c          |  1 +
 net/bluetooth/l2cap_core.c    |  7 +------
 net/bluetooth/l2cap_sock.c    | 10 ++++++++++
 4 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 9c6be72b6e4e..ae3a99bc31d0 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -555,6 +555,7 @@ struct l2cap_ops {
 	void			(*ready) (struct l2cap_chan *chan);
 	void			(*defer) (struct l2cap_chan *chan);
 	void			(*resume) (struct l2cap_chan *chan);
+	void			(*set_shutdown) (struct l2cap_chan *chan);
 	long			(*get_sndtimeo) (struct l2cap_chan *chan);
 	struct sk_buff		*(*alloc_skb) (struct l2cap_chan *chan,
 					       unsigned long len, int nb);
@@ -796,6 +797,10 @@ static inline void l2cap_chan_no_defer(struct l2cap_chan *chan)
 {
 }
 
+static inline void l2cap_chan_no_set_shutdown(struct l2cap_chan *chan)
+{
+}
+
 static inline long l2cap_chan_no_get_sndtimeo(struct l2cap_chan *chan)
 {
 	return 0;
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 1e9921024a1d..74c14779bed6 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -710,6 +710,7 @@ static struct l2cap_ops a2mp_chan_ops = {
 	.teardown = l2cap_chan_no_teardown,
 	.ready = l2cap_chan_no_ready,
 	.defer = l2cap_chan_no_defer,
+	.set_shutdown = l2cap_chan_no_set_shutdown,
 	.get_sndtimeo = l2cap_chan_no_get_sndtimeo,
 };
 
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index c6334fc86d1d..634781a60d3f 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -4241,7 +4241,6 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn,
 	struct l2cap_disconn_rsp rsp;
 	u16 dcid, scid;
 	struct l2cap_chan *chan;
-	struct sock *sk;
 
 	if (cmd_len != sizeof(*req))
 		return -EPROTO;
@@ -4261,15 +4260,11 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn,
 
 	l2cap_chan_lock(chan);
 
-	sk = chan->sk;
-
 	rsp.dcid = cpu_to_le16(chan->scid);
 	rsp.scid = cpu_to_le16(chan->dcid);
 	l2cap_send_cmd(conn, cmd->ident, L2CAP_DISCONN_RSP, sizeof(rsp), &rsp);
 
-	lock_sock(sk);
-	sk->sk_shutdown = SHUTDOWN_MASK;
-	release_sock(sk);
+	chan->ops->set_shutdown(chan);
 
 	l2cap_chan_hold(chan);
 	l2cap_chan_del(chan, ECONNRESET);
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index ffa78d3cd8ac..301f25b9b521 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1136,6 +1136,15 @@ static void l2cap_sock_resume_cb(struct l2cap_chan *chan)
 	sk->sk_state_change(sk);
 }
 
+static void l2cap_sock_set_shutdown_cb(struct l2cap_chan *chan)
+{
+	struct sock *sk = chan->data;
+
+	lock_sock(sk);
+	sk->sk_shutdown = SHUTDOWN_MASK;
+	release_sock(sk);
+}
+
 static long l2cap_sock_get_sndtimeo_cb(struct l2cap_chan *chan)
 {
 	struct sock *sk = chan->data;
@@ -1153,6 +1162,7 @@ static struct l2cap_ops l2cap_chan_ops = {
 	.ready		= l2cap_sock_ready_cb,
 	.defer		= l2cap_sock_defer_cb,
 	.resume		= l2cap_sock_resume_cb,
+	.set_shutdown	= l2cap_sock_set_shutdown_cb,
 	.get_sndtimeo	= l2cap_sock_get_sndtimeo_cb,
 	.alloc_skb	= l2cap_sock_alloc_skb_cb,
 };
-- 
cgit 


From dc25306b033cc27ca2a45b4bb307a437092408d1 Mon Sep 17 00:00:00 2001
From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Date: Tue, 15 Oct 2013 19:24:49 -0300
Subject: Bluetooth: Move l2cap_wait_ack() to l2cap_sock.c

The wait_ack code has a heavy dependency on the socket data structures
and, as of now, it won't be worthless change it to use non-socket
structures as the only user of such feature is a socket.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/l2cap.h |  1 -
 net/bluetooth/l2cap_core.c    | 32 --------------------------------
 net/bluetooth/l2cap_sock.c    | 32 ++++++++++++++++++++++++++++++++
 3 files changed, 32 insertions(+), 33 deletions(-)

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index ae3a99bc31d0..377db2aa89f9 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -813,7 +813,6 @@ void l2cap_cleanup_sockets(void);
 bool l2cap_is_socket(struct socket *sock);
 
 void __l2cap_connect_rsp_defer(struct l2cap_chan *chan);
-int __l2cap_wait_ack(struct sock *sk);
 
 int l2cap_add_psm(struct l2cap_chan *chan, bdaddr_t *src, __le16 psm);
 int l2cap_add_scid(struct l2cap_chan *chan,  __u16 scid);
diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 634781a60d3f..39f02c08a882 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1894,38 +1894,6 @@ done:
 	return err;
 }
 
-int __l2cap_wait_ack(struct sock *sk)
-{
-	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
-	DECLARE_WAITQUEUE(wait, current);
-	int err = 0;
-	int timeo = HZ/5;
-
-	add_wait_queue(sk_sleep(sk), &wait);
-	set_current_state(TASK_INTERRUPTIBLE);
-	while (chan->unacked_frames > 0 && chan->conn) {
-		if (!timeo)
-			timeo = HZ/5;
-
-		if (signal_pending(current)) {
-			err = sock_intr_errno(timeo);
-			break;
-		}
-
-		release_sock(sk);
-		timeo = schedule_timeout(timeo);
-		lock_sock(sk);
-		set_current_state(TASK_INTERRUPTIBLE);
-
-		err = sock_error(sk);
-		if (err)
-			break;
-	}
-	set_current_state(TASK_RUNNING);
-	remove_wait_queue(sk_sleep(sk), &wait);
-	return err;
-}
-
 static void l2cap_monitor_timeout(struct work_struct *work)
 {
 	struct l2cap_chan *chan = container_of(work, struct l2cap_chan,
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 301f25b9b521..68f486a586ff 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -879,6 +879,38 @@ static void l2cap_sock_kill(struct sock *sk)
 	sock_put(sk);
 }
 
+static int __l2cap_wait_ack(struct sock *sk)
+{
+	struct l2cap_chan *chan = l2cap_pi(sk)->chan;
+	DECLARE_WAITQUEUE(wait, current);
+	int err = 0;
+	int timeo = HZ/5;
+
+	add_wait_queue(sk_sleep(sk), &wait);
+	set_current_state(TASK_INTERRUPTIBLE);
+	while (chan->unacked_frames > 0 && chan->conn) {
+		if (!timeo)
+			timeo = HZ/5;
+
+		if (signal_pending(current)) {
+			err = sock_intr_errno(timeo);
+			break;
+		}
+
+		release_sock(sk);
+		timeo = schedule_timeout(timeo);
+		lock_sock(sk);
+		set_current_state(TASK_INTERRUPTIBLE);
+
+		err = sock_error(sk);
+		if (err)
+			break;
+	}
+	set_current_state(TASK_RUNNING);
+	remove_wait_queue(sk_sleep(sk), &wait);
+	return err;
+}
+
 static int l2cap_sock_shutdown(struct socket *sock, int how)
 {
 	struct sock *sk = sock->sk;
-- 
cgit 


From 74e7574066e020dca8ad8a57927470e67ea91394 Mon Sep 17 00:00:00 2001
From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Date: Tue, 15 Oct 2013 19:24:51 -0300
Subject: Bluetooth: use l2cap_chan_ready() instead of duplicate code

In this case the replacement by l2cap_chan_ready() doesn't change the code
flow, the same operations will executed plus two others that have no
effect: the use of the parent socket, that a non-oriented channel doesn't
have and the reset of conf_state, which is also fine since the connection
is ready at this point.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/l2cap_core.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 39f02c08a882..72ce21a822f7 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1450,12 +1450,7 @@ static void l2cap_conn_ready(struct l2cap_conn *conn)
 				l2cap_chan_ready(chan);
 
 		} else if (chan->chan_type != L2CAP_CHAN_CONN_ORIENTED) {
-			struct sock *sk = chan->sk;
-			__clear_chan_timer(chan);
-			lock_sock(sk);
-			__l2cap_state_change(chan, BT_CONNECTED);
-			sk->sk_state_change(sk);
-			release_sock(sk);
+			l2cap_chan_ready(chan);
 
 		} else if (chan->state == BT_CONNECT) {
 			l2cap_do_start(chan);
-- 
cgit 


From 2ce5fb510fc0ba50c8e1b6bcb991848084ea67ec Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 16:47:11 -0700
Subject: Bluetooth: Add l2cap_chan_no_resume stub for A2MP

The A2MP client for L2CAP channels needs to use l2cap_chan_no_resume
empty stub function.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/l2cap.h | 4 ++++
 net/bluetooth/a2mp.c          | 1 +
 2 files changed, 5 insertions(+)

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 377db2aa89f9..3d922b938141 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -797,6 +797,10 @@ static inline void l2cap_chan_no_defer(struct l2cap_chan *chan)
 {
 }
 
+static inline void l2cap_chan_no_resume(struct l2cap_chan *chan)
+{
+}
+
 static inline void l2cap_chan_no_set_shutdown(struct l2cap_chan *chan)
 {
 }
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 74c14779bed6..fe32a334a52d 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -710,6 +710,7 @@ static struct l2cap_ops a2mp_chan_ops = {
 	.teardown = l2cap_chan_no_teardown,
 	.ready = l2cap_chan_no_ready,
 	.defer = l2cap_chan_no_defer,
+	.resume = l2cap_chan_no_resume,
 	.set_shutdown = l2cap_chan_no_set_shutdown,
 	.get_sndtimeo = l2cap_chan_no_get_sndtimeo,
 };
-- 
cgit 


From ce0e4a0d7b84d4ceebc91f97de8c08da23a7bda3 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 14:26:20 -0700
Subject: Bluetooth: Make mgmt_pin_code_request() return void

The return value of mgmt_pin_code_request() function is not used
and so just change it to return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/hci_core.h | 2 +-
 net/bluetooth/mgmt.c             | 5 ++---
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index fc04bc846617..a167a9dda7c7 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1087,7 +1087,7 @@ void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
 			    u8 link_type, u8 addr_type, u8 status);
 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 			 u8 addr_type, u8 status);
-int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
+void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
 int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
 				 u8 status);
 int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index ca3cdb520b2f..efa2c524fcf8 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4533,7 +4533,7 @@ void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 	mgmt_event(MGMT_EV_CONNECT_FAILED, hdev, &ev, sizeof(ev), NULL);
 }
 
-int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure)
+void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure)
 {
 	struct mgmt_ev_pin_code_request ev;
 
@@ -4541,8 +4541,7 @@ int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure)
 	ev.addr.type = BDADDR_BREDR;
 	ev.secure = secure;
 
-	return mgmt_event(MGMT_EV_PIN_CODE_REQUEST, hdev, &ev, sizeof(ev),
-			  NULL);
+	mgmt_event(MGMT_EV_PIN_CODE_REQUEST, hdev, &ev, sizeof(ev), NULL);
 }
 
 int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
-- 
cgit 


From e669cf803cb14d63d0b7c612286e5cfdec6e34f7 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 14:26:21 -0700
Subject: Bluetooth: Make mgmt_pin_code_reply_complete() return void

The return value of mgmt_pin_code_reply_complete() function is not
used and so just change it to return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/hci_core.h |  4 ++--
 net/bluetooth/mgmt.c             | 13 +++++--------
 2 files changed, 7 insertions(+), 10 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index a167a9dda7c7..95baf3561dad 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1088,8 +1088,8 @@ void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 			 u8 addr_type, u8 status);
 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
-int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
-				 u8 status);
+void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
+				  u8 status);
 int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
 				     u8 status);
 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index efa2c524fcf8..608aa0f8bf7b 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4544,26 +4544,23 @@ void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure)
 	mgmt_event(MGMT_EV_PIN_CODE_REQUEST, hdev, &ev, sizeof(ev), NULL);
 }
 
-int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
-				 u8 status)
+void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
+				  u8 status)
 {
 	struct pending_cmd *cmd;
 	struct mgmt_rp_pin_code_reply rp;
-	int err;
 
 	cmd = mgmt_pending_find(MGMT_OP_PIN_CODE_REPLY, hdev);
 	if (!cmd)
-		return -ENOENT;
+		return;
 
 	bacpy(&rp.addr.bdaddr, bdaddr);
 	rp.addr.type = BDADDR_BREDR;
 
-	err = cmd_complete(cmd->sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
-			   mgmt_status(status), &rp, sizeof(rp));
+	cmd_complete(cmd->sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
+		     mgmt_status(status), &rp, sizeof(rp));
 
 	mgmt_pending_remove(cmd);
-
-	return err;
 }
 
 int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
-- 
cgit 


From 3eb385289a8b71db40b1a4a4d739817bd437db4f Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 14:26:22 -0700
Subject: Bluetooth: Make mgmt_pin_code_neg_reply_complete() return void

The return value of mgmt_pin_code_neg_reply_complete() function is
not used and so just change it to return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/hci_core.h |  4 ++--
 net/bluetooth/mgmt.c             | 13 +++++--------
 2 files changed, 7 insertions(+), 10 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 95baf3561dad..aaa897f3b50a 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1090,8 +1090,8 @@ void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
 				  u8 status);
-int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
-				     u8 status);
+void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
+				      u8 status);
 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
 			      u8 link_type, u8 addr_type, __le32 value,
 			      u8 confirm_hint);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 608aa0f8bf7b..c959915d308e 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4563,26 +4563,23 @@ void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
 	mgmt_pending_remove(cmd);
 }
 
-int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
-				     u8 status)
+void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
+				      u8 status)
 {
 	struct pending_cmd *cmd;
 	struct mgmt_rp_pin_code_reply rp;
-	int err;
 
 	cmd = mgmt_pending_find(MGMT_OP_PIN_CODE_NEG_REPLY, hdev);
 	if (!cmd)
-		return -ENOENT;
+		return;
 
 	bacpy(&rp.addr.bdaddr, bdaddr);
 	rp.addr.type = BDADDR_BREDR;
 
-	err = cmd_complete(cmd->sk, hdev->id, MGMT_OP_PIN_CODE_NEG_REPLY,
-			   mgmt_status(status), &rp, sizeof(rp));
+	cmd_complete(cmd->sk, hdev->id, MGMT_OP_PIN_CODE_NEG_REPLY,
+		     mgmt_status(status), &rp, sizeof(rp));
 
 	mgmt_pending_remove(cmd);
-
-	return err;
 }
 
 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
-- 
cgit 


From e546099c3194ef6ecf46a8a50414005c29a46bc4 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 14:26:23 -0700
Subject: Bluetooth: Make mgmt_auth_failed() return void

The return value of mgmt_auth_failed() function is not used
and so just change it to return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/hci_core.h | 4 ++--
 net/bluetooth/mgmt.c             | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index aaa897f3b50a..c7427160c7c2 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1108,8 +1108,8 @@ int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
 			     u8 link_type, u8 addr_type, u32 passkey,
 			     u8 entered);
-int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-		     u8 addr_type, u8 status);
+void mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+		      u8 addr_type, u8 status);
 int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
 int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
 int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index c959915d308e..3c4499041aeb 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4681,8 +4681,8 @@ int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
 	return mgmt_event(MGMT_EV_PASSKEY_NOTIFY, hdev, &ev, sizeof(ev), NULL);
 }
 
-int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-		     u8 addr_type, u8 status)
+void mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
+		      u8 addr_type, u8 status)
 {
 	struct mgmt_ev_auth_failed ev;
 
@@ -4690,7 +4690,7 @@ int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 	ev.addr.type = link_to_bdaddr(link_type, addr_type);
 	ev.status = mgmt_status(status);
 
-	return mgmt_event(MGMT_EV_AUTH_FAILED, hdev, &ev, sizeof(ev), NULL);
+	mgmt_event(MGMT_EV_AUTH_FAILED, hdev, &ev, sizeof(ev), NULL);
 }
 
 int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status)
-- 
cgit 


From 464996aea48aa1ec3d7d60098dbb0f7623da6c92 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 14:26:24 -0700
Subject: Bluetooth: Make mgmt_auth_enable_complete() return void

The return value of mgmt_auth_enable_complete() function is not
used and so just change it to return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/hci_core.h |  2 +-
 net/bluetooth/mgmt.c             | 24 ++++++++++--------------
 2 files changed, 11 insertions(+), 15 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index c7427160c7c2..3ee5691b247f 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1110,7 +1110,7 @@ int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
 			     u8 entered);
 void mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 		      u8 addr_type, u8 status);
-int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
+void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
 int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
 int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
 				   u8 status);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 3c4499041aeb..0672a8cb662e 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4693,37 +4693,33 @@ void mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 	mgmt_event(MGMT_EV_AUTH_FAILED, hdev, &ev, sizeof(ev), NULL);
 }
 
-int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status)
+void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status)
 {
 	struct cmd_lookup match = { NULL, hdev };
-	bool changed = false;
-	int err = 0;
+	bool changed;
 
 	if (status) {
 		u8 mgmt_err = mgmt_status(status);
 		mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev,
 				     cmd_status_rsp, &mgmt_err);
-		return 0;
+		return;
 	}
 
-	if (test_bit(HCI_AUTH, &hdev->flags)) {
-		if (!test_and_set_bit(HCI_LINK_SECURITY, &hdev->dev_flags))
-			changed = true;
-	} else {
-		if (test_and_clear_bit(HCI_LINK_SECURITY, &hdev->dev_flags))
-			changed = true;
-	}
+	if (test_bit(HCI_AUTH, &hdev->flags))
+		changed = !test_and_set_bit(HCI_LINK_SECURITY,
+					    &hdev->dev_flags);
+	else
+		changed = test_and_clear_bit(HCI_LINK_SECURITY,
+					     &hdev->dev_flags);
 
 	mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev, settings_rsp,
 			     &match);
 
 	if (changed)
-		err = new_settings(hdev, match.sk);
+		new_settings(hdev, match.sk);
 
 	if (match.sk)
 		sock_put(match.sk);
-
-	return err;
 }
 
 static void clear_eir(struct hci_request *req)
-- 
cgit 


From 3e248560d951b4a99aaa1d1332030853e2ebc3fd Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 14:26:25 -0700
Subject: Bluetooth: Make mgmt_ssp_enable_complete() return void

The return value of mgmt_ssp_enable_complete() function is not
used and so just change it to return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/hci_core.h |  2 +-
 net/bluetooth/mgmt.c             | 12 ++++--------
 2 files changed, 5 insertions(+), 9 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 3ee5691b247f..734b09f28f8c 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1111,7 +1111,7 @@ int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
 void mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 		      u8 addr_type, u8 status);
 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
-int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
+void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
 int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
 				   u8 status);
 int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 0672a8cb662e..969dbaaf243a 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4737,12 +4737,11 @@ static void clear_eir(struct hci_request *req)
 	hci_req_add(req, HCI_OP_WRITE_EIR, sizeof(cp), &cp);
 }
 
-int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
+void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
 {
 	struct cmd_lookup match = { NULL, hdev };
 	struct hci_request req;
 	bool changed = false;
-	int err = 0;
 
 	if (status) {
 		u8 mgmt_err = mgmt_status(status);
@@ -4750,13 +4749,12 @@ int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
 		if (enable && test_and_clear_bit(HCI_SSP_ENABLED,
 						 &hdev->dev_flags)) {
 			clear_bit(HCI_HS_ENABLED, &hdev->dev_flags);
-			err = new_settings(hdev, NULL);
+			new_settings(hdev, NULL);
 		}
 
 		mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, cmd_status_rsp,
 				     &mgmt_err);
-
-		return err;
+		return;
 	}
 
 	if (enable) {
@@ -4773,7 +4771,7 @@ int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
 	mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, settings_rsp, &match);
 
 	if (changed)
-		err = new_settings(hdev, match.sk);
+		new_settings(hdev, match.sk);
 
 	if (match.sk)
 		sock_put(match.sk);
@@ -4786,8 +4784,6 @@ int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
 		clear_eir(&req);
 
 	hci_req_run(&req, NULL);
-
-	return err;
 }
 
 static void sk_lookup(struct pending_cmd *cmd, void *data)
-- 
cgit 


From 4e1b0245f2394a6ee4a79bb183f56f8fe2c7af33 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 14:26:26 -0700
Subject: Bluetooth: Make mgmt_set_class_of_dev_complete() return void

The return value of mgmt_set_class_of_dev_complete() function is
not used and so just change it to return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/hci_core.h |  4 ++--
 net/bluetooth/mgmt.c             | 11 ++++-------
 2 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 734b09f28f8c..b2b472cbb611 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1112,8 +1112,8 @@ void mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 		      u8 addr_type, u8 status);
 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
-int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
-				   u8 status);
+void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
+				    u8 status);
 int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
 int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
 					    u8 *randomizer, u8 status);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 969dbaaf243a..24da84ecd062 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4796,24 +4796,21 @@ static void sk_lookup(struct pending_cmd *cmd, void *data)
 	}
 }
 
-int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
-				   u8 status)
+void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
+				    u8 status)
 {
 	struct cmd_lookup match = { NULL, hdev, mgmt_status(status) };
-	int err = 0;
 
 	mgmt_pending_foreach(MGMT_OP_SET_DEV_CLASS, hdev, sk_lookup, &match);
 	mgmt_pending_foreach(MGMT_OP_ADD_UUID, hdev, sk_lookup, &match);
 	mgmt_pending_foreach(MGMT_OP_REMOVE_UUID, hdev, sk_lookup, &match);
 
 	if (!status)
-		err = mgmt_event(MGMT_EV_CLASS_OF_DEV_CHANGED, hdev, dev_class,
-				 3, NULL);
+		mgmt_event(MGMT_EV_CLASS_OF_DEV_CHANGED, hdev, dev_class, 3,
+			   NULL);
 
 	if (match.sk)
 		sock_put(match.sk);
-
-	return err;
 }
 
 int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status)
-- 
cgit 


From 7667da3423cdf06a818e73adaf2f675455cc8e99 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 14:26:27 -0700
Subject: Bluetooth: Make mgmt_set_local_name_complete() return void

The return value of mgmt_set_local_name_complete() function is
not used and so just change it to return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/hci_core.h |  2 +-
 net/bluetooth/mgmt.c             | 10 +++++-----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index b2b472cbb611..d40212b94c8a 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1114,7 +1114,7 @@ void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
 				    u8 status);
-int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
+void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
 int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
 					    u8 *randomizer, u8 status);
 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 24da84ecd062..b4b5cb7786df 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4813,13 +4813,13 @@ void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
 		sock_put(match.sk);
 }
 
-int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status)
+void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status)
 {
 	struct mgmt_cp_set_local_name ev;
 	struct pending_cmd *cmd;
 
 	if (status)
-		return 0;
+		return;
 
 	memset(&ev, 0, sizeof(ev));
 	memcpy(ev.name, name, HCI_MAX_NAME_LENGTH);
@@ -4833,11 +4833,11 @@ int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status)
 		 * HCI dev don't send any mgmt signals.
 		 */
 		if (mgmt_pending_find(MGMT_OP_SET_POWERED, hdev))
-			return 0;
+			return;
 	}
 
-	return mgmt_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, &ev, sizeof(ev),
-			  cmd ? cmd->sk : NULL);
+	mgmt_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, &ev, sizeof(ev),
+		   cmd ? cmd->sk : NULL);
 }
 
 int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
-- 
cgit 


From 3edaf092c271d91228c66a48b415c92925b83d0b Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 14:26:28 -0700
Subject: Bluetooth: Make mgmt_read_local_oob_data_reply_complete() return void

The return value of mgmt_read_local_oob_data_reply_complete() function
is not used and so just change it to return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/hci_core.h |  4 ++--
 net/bluetooth/mgmt.c             | 18 +++++++-----------
 2 files changed, 9 insertions(+), 13 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index d40212b94c8a..5d8d322a0855 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1115,8 +1115,8 @@ void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
 				    u8 status);
 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
-int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
-					    u8 *randomizer, u8 status);
+void mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
+					     u8 *randomizer, u8 status);
 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 		       u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name,
 		       u8 ssp, u8 *eir, u16 eir_len);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index b4b5cb7786df..1ed0b3e1b9ff 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4840,35 +4840,31 @@ void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status)
 		   cmd ? cmd->sk : NULL);
 }
 
-int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
-					    u8 *randomizer, u8 status)
+void mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
+					     u8 *randomizer, u8 status)
 {
 	struct pending_cmd *cmd;
-	int err;
 
 	BT_DBG("%s status %u", hdev->name, status);
 
 	cmd = mgmt_pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev);
 	if (!cmd)
-		return -ENOENT;
+		return;
 
 	if (status) {
-		err = cmd_status(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
-				 mgmt_status(status));
+		cmd_status(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
+			   mgmt_status(status));
 	} else {
 		struct mgmt_rp_read_local_oob_data rp;
 
 		memcpy(rp.hash, hash, sizeof(rp.hash));
 		memcpy(rp.randomizer, randomizer, sizeof(rp.randomizer));
 
-		err = cmd_complete(cmd->sk, hdev->id,
-				   MGMT_OP_READ_LOCAL_OOB_DATA, 0, &rp,
-				   sizeof(rp));
+		cmd_complete(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
+			     0, &rp, sizeof(rp));
 	}
 
 	mgmt_pending_remove(cmd);
-
-	return err;
 }
 
 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
-- 
cgit 


From 083368f7b8c03a0b3eaa048e84eb9fa9573745d4 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Tue, 15 Oct 2013 14:26:29 -0700
Subject: Bluetooth: Make mgmt_new_ltk() return void

The return value of mgmt_new_ltk() function is not used and
so just change it to return void.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
---
 include/net/bluetooth/hci_core.h | 2 +-
 net/bluetooth/mgmt.c             | 5 ++---
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 5d8d322a0855..0a3a10a76b6c 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1125,7 +1125,7 @@ void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
 void mgmt_discovering(struct hci_dev *hdev, u8 discovering);
 int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
 int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
-int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent);
+void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent);
 void mgmt_reenable_advertising(struct hci_dev *hdev);
 
 /* HCI info for socket */
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 1ed0b3e1b9ff..90d935373449 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4382,7 +4382,7 @@ void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
 	mgmt_event(MGMT_EV_NEW_LINK_KEY, hdev, &ev, sizeof(ev), NULL);
 }
 
-int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent)
+void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent)
 {
 	struct mgmt_ev_new_long_term_key ev;
 
@@ -4401,8 +4401,7 @@ int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent)
 	memcpy(ev.key.rand, key->rand, sizeof(key->rand));
 	memcpy(ev.key.val, key->val, sizeof(key->val));
 
-	return mgmt_event(MGMT_EV_NEW_LONG_TERM_KEY, hdev, &ev, sizeof(ev),
-			  NULL);
+	mgmt_event(MGMT_EV_NEW_LONG_TERM_KEY, hdev, &ev, sizeof(ev), NULL);
 }
 
 static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data,
-- 
cgit 


From d66e6db28df330c0e5b61f9863754fc2fd37f8ca Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Tue, 15 Oct 2013 22:25:08 +0200
Subject: PM / Runtime: Respect autosuspend when idle triggers suspend

For devices which don't have a .runtime_idle() callback or if it
returns 0, rpm_idle() will end up in triggering a call to
rpm_suspend(), thus trying to carry out a runtime suspend directly
from runtime_idle().

In the above situation we want to respect devices which has enabled
autosuspend, we therfore append the flag sent to rpm_suspend with
RPM_AUTO.

Do note that drivers still needs to update the device last busy mark,
to control the delay for this circumstance.

Updated runtime PM documentation accordingly.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 Documentation/power/runtime_pm.txt | 14 ++++++++------
 drivers/base/power/runtime.c       |  5 +++--
 2 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/Documentation/power/runtime_pm.txt b/Documentation/power/runtime_pm.txt
index 71d8fe4e75d3..0f54333b0ff2 100644
--- a/Documentation/power/runtime_pm.txt
+++ b/Documentation/power/runtime_pm.txt
@@ -145,11 +145,13 @@ The action performed by the idle callback is totally dependent on the subsystem
 if the device can be suspended (i.e. if all of the conditions necessary for
 suspending the device are satisfied) and to queue up a suspend request for the
 device in that case.  If there is no idle callback, or if the callback returns
-0, then the PM core will attempt to carry out a runtime suspend of the device;
-in essence, it will call pm_runtime_suspend() directly.  To prevent this (for
-example, if the callback routine has started a delayed suspend), the routine
-should return a non-zero value.  Negative error return codes are ignored by the
-PM core.
+0, then the PM core will attempt to carry out a runtime suspend of the device,
+also respecting devices configured for autosuspend.  In essence this means a
+call to pm_runtime_autosuspend() (do note that drivers needs to update the
+device last busy mark, pm_runtime_mark_last_busy(), to control the delay under
+this circumstance).  To prevent this (for example, if the callback routine has
+started a delayed suspend), the routine must return a non-zero value.  Negative
+error return codes are ignored by the PM core.
 
 The helper functions provided by the PM core, described in Section 4, guarantee
 that the following constraints are met with respect to runtime PM callbacks for
@@ -308,7 +310,7 @@ drivers/base/power/runtime.c and include/linux/pm_runtime.h:
     - execute the subsystem-level idle callback for the device; returns an
       error code on failure, where -EINPROGRESS means that ->runtime_idle() is
       already being executed; if there is no callback or the callback returns 0
-      then run pm_runtime_suspend(dev) and return its result
+      then run pm_runtime_autosuspend(dev) and return its result
 
   int pm_runtime_suspend(struct device *dev);
     - execute the subsystem-level suspend callback for the device; returns 0 on
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 268a35097578..72e00e66ecc5 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -258,7 +258,8 @@ static int __rpm_callback(int (*cb)(struct device *), struct device *dev)
  * Check if the device's runtime PM status allows it to be suspended.  If
  * another idle notification has been started earlier, return immediately.  If
  * the RPM_ASYNC flag is set then queue an idle-notification request; otherwise
- * run the ->runtime_idle() callback directly.
+ * run the ->runtime_idle() callback directly. If the ->runtime_idle callback
+ * doesn't exist or if it returns 0, call rpm_suspend with the RPM_AUTO flag.
  *
  * This function must be called under dev->power.lock with interrupts disabled.
  */
@@ -331,7 +332,7 @@ static int rpm_idle(struct device *dev, int rpmflags)
 
  out:
 	trace_rpm_return_int(dev, _THIS_IP_, retval);
-	return retval ? retval : rpm_suspend(dev, rpmflags);
+	return retval ? retval : rpm_suspend(dev, rpmflags | RPM_AUTO);
 }
 
 /**
-- 
cgit 


From a7265fb1751ffbfad553afc7f592a6dac6be48de Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Tue, 15 Oct 2013 17:43:00 -0700
Subject: KVM: ARM: Remove non-ASCII space characters

Some strange character leaped into the documentation, which makes
git-send-email behave quite strangely.  Get rid of this before it bites
anyone else.

Cc: Anup Patel <anup.patel@linaro.org>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 Documentation/virtual/kvm/api.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 076b8492d810..a89a5ee0b940 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -2312,7 +2312,7 @@ Type: vm ioctl
 Parameters: struct struct kvm_vcpu_init (out)
 Returns: 0 on success; -1 on error
 Errors:
-  ENODEV:    no preferred target available for the host
+  ENODEV:    no preferred target available for the host
 
 This queries KVM for preferred CPU target type which can be emulated
 by KVM on underlying host.
-- 
cgit 


From 1f5580986a3667e9d67b65d916bb4249fd86a400 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Tue, 8 Oct 2013 18:38:13 +0100
Subject: ARM: KVM: Yield CPU when vcpu executes a WFE

On an (even slightly) oversubscribed system, spinlocks are quickly
becoming a bottleneck, as some vcpus are spinning, waiting for a
lock to be released, while the vcpu holding the lock may not be
running at all.

This creates contention, and the observed slowdown is 40x for
hackbench. No, this isn't a typo.

The solution is to trap blocking WFEs and tell KVM that we're
now spinning. This ensures that other vpus will get a scheduling
boost, allowing the lock to be released more quickly. Also, using
CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT slightly improves the performance
when the VM is severely overcommited.

Quick test to estimate the performance: hackbench 1 process 1000

2xA15 host (baseline):	1.843s

2xA15 guest w/o patch:	2.083s
4xA15 guest w/o patch:	80.212s
8xA15 guest w/o patch:	Could not be bothered to find out

2xA15 guest w/ patch:	2.102s
4xA15 guest w/ patch:	3.205s
8xA15 guest w/ patch:	6.887s

So we go from a 40x degradation to 1.5x in the 2x overcommit case,
which is vaguely more acceptable.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm/include/asm/kvm_arm.h | 4 +++-
 arch/arm/kvm/Kconfig           | 1 +
 arch/arm/kvm/handle_exit.c     | 6 +++++-
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/arm/include/asm/kvm_arm.h b/arch/arm/include/asm/kvm_arm.h
index d556f03bca17..fe395b7b1ce2 100644
--- a/arch/arm/include/asm/kvm_arm.h
+++ b/arch/arm/include/asm/kvm_arm.h
@@ -67,7 +67,7 @@
  */
 #define HCR_GUEST_MASK (HCR_TSC | HCR_TSW | HCR_TWI | HCR_VM | HCR_BSU_IS | \
 			HCR_FB | HCR_TAC | HCR_AMO | HCR_IMO | HCR_FMO | \
-			HCR_SWIO | HCR_TIDCP)
+			HCR_TWE | HCR_SWIO | HCR_TIDCP)
 #define HCR_VIRT_EXCP_MASK (HCR_VA | HCR_VI | HCR_VF)
 
 /* System Control Register (SCTLR) bits */
@@ -208,6 +208,8 @@
 #define HSR_EC_DABT	(0x24)
 #define HSR_EC_DABT_HYP	(0x25)
 
+#define HSR_WFI_IS_WFE		(1U << 0)
+
 #define HSR_HVC_IMM_MASK	((1UL << 16) - 1)
 
 #define HSR_DABT_S1PTW		(1U << 7)
diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig
index ebf5015508b5..466bd299b1a8 100644
--- a/arch/arm/kvm/Kconfig
+++ b/arch/arm/kvm/Kconfig
@@ -20,6 +20,7 @@ config KVM
 	bool "Kernel-based Virtual Machine (KVM) support"
 	select PREEMPT_NOTIFIERS
 	select ANON_INODES
+	select HAVE_KVM_CPU_RELAX_INTERCEPT
 	select KVM_MMIO
 	select KVM_ARM_HOST
 	depends on ARM_VIRT_EXT && ARM_LPAE
diff --git a/arch/arm/kvm/handle_exit.c b/arch/arm/kvm/handle_exit.c
index df4c82d47ad7..c4c496f7619c 100644
--- a/arch/arm/kvm/handle_exit.c
+++ b/arch/arm/kvm/handle_exit.c
@@ -84,7 +84,11 @@ static int handle_dabt_hyp(struct kvm_vcpu *vcpu, struct kvm_run *run)
 static int kvm_handle_wfi(struct kvm_vcpu *vcpu, struct kvm_run *run)
 {
 	trace_kvm_wfi(*vcpu_pc(vcpu));
-	kvm_vcpu_block(vcpu);
+	if (kvm_vcpu_get_hsr(vcpu) & HSR_WFI_IS_WFE)
+		kvm_vcpu_on_spin(vcpu);
+	else
+		kvm_vcpu_block(vcpu);
+
 	return 1;
 }
 
-- 
cgit 


From 82ea046c95a3c3ddcfa058c8a270b9afb6e93700 Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Tue, 15 Oct 2013 18:10:42 -0700
Subject: KVM: ARM: Update comments for kvm_handle_wfi

Update comments to reflect what is really going on and add the TWE bit
to the comments in kvm_arm.h.

Also renames the function to kvm_handle_wfx like is done on arm64 for
consistency and uber-correctness.

Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm/include/asm/kvm_arm.h |  1 +
 arch/arm/kvm/handle_exit.c     | 14 ++++++++------
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/arch/arm/include/asm/kvm_arm.h b/arch/arm/include/asm/kvm_arm.h
index fe395b7b1ce2..1d3153c7eb41 100644
--- a/arch/arm/include/asm/kvm_arm.h
+++ b/arch/arm/include/asm/kvm_arm.h
@@ -57,6 +57,7 @@
  * TSC:		Trap SMC
  * TSW:		Trap cache operations by set/way
  * TWI:		Trap WFI
+ * TWE:		Trap WFE
  * TIDCP:	Trap L2CTLR/L2ECTLR
  * BSU_IS:	Upgrade barriers to the inner shareable domain
  * FB:		Force broadcast of all maintainance operations
diff --git a/arch/arm/kvm/handle_exit.c b/arch/arm/kvm/handle_exit.c
index c4c496f7619c..a92079011a83 100644
--- a/arch/arm/kvm/handle_exit.c
+++ b/arch/arm/kvm/handle_exit.c
@@ -73,15 +73,17 @@ static int handle_dabt_hyp(struct kvm_vcpu *vcpu, struct kvm_run *run)
 }
 
 /**
- * kvm_handle_wfi - handle a wait-for-interrupts instruction executed by a guest
+ * kvm_handle_wfx - handle a WFI or WFE instructions trapped in guests
  * @vcpu:	the vcpu pointer
  * @run:	the kvm_run structure pointer
  *
- * Simply sets the wait_for_interrupts flag on the vcpu structure, which will
- * halt execution of world-switches and schedule other host processes until
- * there is an incoming IRQ or FIQ to the VM.
+ * WFE: Yield the CPU and come back to this vcpu when the scheduler
+ * decides to.
+ * WFI: Simply call kvm_vcpu_block(), which will halt execution of
+ * world-switches and schedule other host processes until there is an
+ * incoming IRQ or FIQ to the VM.
  */
-static int kvm_handle_wfi(struct kvm_vcpu *vcpu, struct kvm_run *run)
+static int kvm_handle_wfx(struct kvm_vcpu *vcpu, struct kvm_run *run)
 {
 	trace_kvm_wfi(*vcpu_pc(vcpu));
 	if (kvm_vcpu_get_hsr(vcpu) & HSR_WFI_IS_WFE)
@@ -93,7 +95,7 @@ static int kvm_handle_wfi(struct kvm_vcpu *vcpu, struct kvm_run *run)
 }
 
 static exit_handle_fn arm_exit_handlers[] = {
-	[HSR_EC_WFI]		= kvm_handle_wfi,
+	[HSR_EC_WFI]		= kvm_handle_wfx,
 	[HSR_EC_CP15_32]	= kvm_handle_cp15_32,
 	[HSR_EC_CP15_64]	= kvm_handle_cp15_64,
 	[HSR_EC_CP14_MR]	= kvm_handle_cp14_access,
-- 
cgit 


From 70b0d5f5838e0c9dfecabefe4ff43b5a2e7c1e8b Mon Sep 17 00:00:00 2001
From: Sourav Poddar <sourav.poddar@ti.com>
Date: Tue, 15 Oct 2013 11:07:27 +0530
Subject: ARM: OMAP2: hwmod: Add qspi data for am437x.

Add hwmod data for qspi for AM437x.

Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/omap_hwmod_43xx_data.c | 34 ++++++++++++++++++++++++++++++
 arch/arm/mach-omap2/prcm43xx.h             |  1 +
 2 files changed, 35 insertions(+)

diff --git a/arch/arm/mach-omap2/omap_hwmod_43xx_data.c b/arch/arm/mach-omap2/omap_hwmod_43xx_data.c
index a58024d703ca..9002fca76699 100644
--- a/arch/arm/mach-omap2/omap_hwmod_43xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_43xx_data.c
@@ -389,6 +389,32 @@ static struct omap_hwmod am43xx_usb_otg_ss1_hwmod = {
 	},
 };
 
+static struct omap_hwmod_class_sysconfig am43xx_qspi_sysc = {
+	.sysc_offs      = 0x0010,
+	.sysc_flags     = SYSC_HAS_SIDLEMODE,
+	.idlemodes      = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
+				SIDLE_SMART_WKUP),
+	.sysc_fields    = &omap_hwmod_sysc_type2,
+};
+
+static struct omap_hwmod_class am43xx_qspi_hwmod_class = {
+	.name   = "qspi",
+	.sysc   = &am43xx_qspi_sysc,
+};
+
+static struct omap_hwmod am43xx_qspi_hwmod = {
+	.name           = "qspi",
+	.class          = &am43xx_qspi_hwmod_class,
+	.clkdm_name     = "l3s_clkdm",
+	.main_clk       = "l3s_gclk",
+	.prcm = {
+		.omap4 = {
+			.clkctrl_offs = AM43XX_CM_PER_QSPI_CLKCTRL_OFFSET,
+			.modulemode   = MODULEMODE_SWCTRL,
+		},
+	},
+};
+
 /* Interfaces */
 static struct omap_hwmod_ocp_if am43xx_l3_main__l4_hs = {
 	.master		= &am33xx_l3_main_hwmod,
@@ -621,6 +647,13 @@ static struct omap_hwmod_ocp_if am43xx_l3_s__usbotgss1 = {
 	.user           = OCP_USER_MPU | OCP_USER_SDMA,
 };
 
+static struct omap_hwmod_ocp_if am43xx_l3_s__qspi = {
+	.master         = &am33xx_l3_s_hwmod,
+	.slave          = &am43xx_qspi_hwmod,
+	.clk            = "l3s_gclk",
+	.user           = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
 static struct omap_hwmod_ocp_if *am43xx_hwmod_ocp_ifs[] __initdata = {
 	&am33xx_l4_wkup__synctimer,
 	&am43xx_l4_ls__timer8,
@@ -660,6 +693,7 @@ static struct omap_hwmod_ocp_if *am43xx_hwmod_ocp_ifs[] __initdata = {
 	&am43xx_l4_wkup__i2c1,
 	&am43xx_l4_wkup__gpio0,
 	&am43xx_l4_wkup__wd_timer1,
+	&am43xx_l3_s__qspi,
 	&am33xx_l4_per__dcan0,
 	&am33xx_l4_per__dcan1,
 	&am33xx_l4_per__gpio1,
diff --git a/arch/arm/mach-omap2/prcm43xx.h b/arch/arm/mach-omap2/prcm43xx.h
index 0d66a6e81efa..7785be984edd 100644
--- a/arch/arm/mach-omap2/prcm43xx.h
+++ b/arch/arm/mach-omap2/prcm43xx.h
@@ -106,6 +106,7 @@
 #define AM43XX_CM_WKUP_L4WKUP_CLKCTRL_OFFSET		0x0220
 #define AM43XX_CM_RTC_RTC_CLKCTRL_OFFSET		0x0020
 #define AM43XX_CM_PER_MMC2_CLKCTRL_OFFSET		0x0248
+#define AM43XX_CM_PER_QSPI_CLKCTRL_OFFSET               0x0258
 #define AM43XX_CM_PER_GPMC_CLKCTRL_OFFSET		0x0220
 #define AM43XX_CM_PER_MCASP0_CLKCTRL_OFFSET		0x0238
 #define AM43XX_CM_PER_MCASP1_CLKCTRL_OFFSET		0x0240
-- 
cgit 


From 4a7d3e8a9939cf8073c247286d81cbe0ae48eba2 Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Tue, 15 Oct 2013 15:31:51 +0200
Subject: clocksource: arch_timer: Do not register arch_sys_counter twice

Commit:

   65cd4f6 ("arch_timer: Move to generic sched_clock framework")

added code to register the arch_sys_counter in arch_timer_register(),
but it is already registered in arch_counter_register().

This results in the timer being added to the clocksource list twice,
therefore causing an infinite loop in the list.

Remove the duplicate registration and register the scheduler
clock after the original registration instead.

This fixes a hang during boot on Tegra114 (Cortex-A15).

[ While I've only tested this on Tegra114, I suspect the same hang
  during boot happens for all processors that use this clock source. ]

Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: John Stultz <john.stultz@linaro.org>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: http://lkml.kernel.org/r/1381843911-31962-1-git-send-email-treding@nvidia.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 drivers/clocksource/arm_arch_timer.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/clocksource/arm_arch_timer.c b/drivers/clocksource/arm_arch_timer.c
index f655036b524f..95fb944e15ee 100644
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -436,6 +436,9 @@ static void __init arch_counter_register(unsigned type)
 	cyclecounter.mult = clocksource_counter.mult;
 	cyclecounter.shift = clocksource_counter.shift;
 	timecounter_init(&timecounter, &cyclecounter, start_count);
+
+	/* 56 bits minimum, so we assume worst case rollover */
+	sched_clock_register(arch_timer_read_counter, 56, arch_timer_rate);
 }
 
 static void arch_timer_stop(struct clock_event_device *clk)
@@ -515,15 +518,6 @@ static int __init arch_timer_register(void)
 		goto out;
 	}
 
-	clocksource_register_hz(&clocksource_counter, arch_timer_rate);
-	cyclecounter.mult = clocksource_counter.mult;
-	cyclecounter.shift = clocksource_counter.shift;
-	timecounter_init(&timecounter, &cyclecounter,
-			 arch_counter_get_cntvct());
-
-	/* 56 bits minimum, so we assume worst case rollover */
-	sched_clock_register(arch_timer_read_counter, 56, arch_timer_rate);
-
 	if (arch_timer_use_virtual) {
 		ppi = arch_timer_ppi[VIRT_PPI];
 		err = request_percpu_irq(ppi, arch_timer_handler_virt,
-- 
cgit 


From 1ccd33b8f69f9df7f11b0ec08259058164831ca5 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Tue, 8 Oct 2013 22:48:33 -0700
Subject: Input: clarify gamepad API ABS values

It wasn't really clear from the gamepad-API description how ABS values are
mapped exactly. Clarify that negative is left/up and positive is
right/down. Unfortunately, this means I screwed up the Wii U ProController
ABI. Anyhow, this just means we continue to have 0 compatible gamepad
drivers in the kernel. User-space needs to fix them up, anyway, as all
other gamepads are also incompatible.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 Documentation/input/gamepad.txt | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Documentation/input/gamepad.txt b/Documentation/input/gamepad.txt
index 8002c894c6b0..31bb6a4029ef 100644
--- a/Documentation/input/gamepad.txt
+++ b/Documentation/input/gamepad.txt
@@ -122,12 +122,14 @@ D-Pad:
       BTN_DPAD_*
     Analog buttons are reported as:
       ABS_HAT0X and ABS_HAT0Y
+      (for ABS values negative is left/up, positive is right/down)
 
 Analog-Sticks:
   The left analog-stick is reported as ABS_X, ABS_Y. The right analog stick is
   reported as ABS_RX, ABS_RY. Zero, one or two sticks may be present.
   If analog-sticks provide digital buttons, they are mapped accordingly as
   BTN_THUMBL (first/left) and BTN_THUMBR (second/right).
+    (for ABS values negative is left/up, positive is right/down)
 
 Triggers:
   Trigger buttons can be available as digital or analog buttons or both. User-
@@ -138,6 +140,7 @@ Triggers:
   ABS_HAT2X (right/ZR) and BTN_TL2 or ABS_HAT2Y (left/ZL).
   If only one trigger-button combination is present (upper+lower), they are
   reported as "right" triggers (BTN_TR/ABS_HAT1X).
+    (ABS trigger values start at 0, pressure is reported as positive values)
 
 Menu-Pad:
   Menu buttons are always digital and are mapped according to their location
-- 
cgit 


From a4da47527d9f2e19a66527379418a5d13de9fff1 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Tue, 15 Oct 2013 23:37:44 -0700
Subject: Input: nspire-keypad - add missing clk_disable_unprepare() on error
 path

Add the missing clk_disable_unprepare() before return
from nspire_keypad_open() in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/keyboard/nspire-keypad.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/input/keyboard/nspire-keypad.c b/drivers/input/keyboard/nspire-keypad.c
index 9981928234cd..b31064981e96 100644
--- a/drivers/input/keyboard/nspire-keypad.c
+++ b/drivers/input/keyboard/nspire-keypad.c
@@ -143,8 +143,10 @@ static int nspire_keypad_open(struct input_dev *input)
 		return error;
 
 	error = nspire_keypad_chip_init(keypad);
-	if (error)
+	if (error) {
+		clk_disable_unprepare(keypad->clk);
 		return error;
+	}
 
 	return 0;
 }
-- 
cgit 


From 668e63c6701d486c68b49ffffc0e5b7de1a2e95c Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Mon, 7 Oct 2013 11:30:50 +0200
Subject: pwm-backlight: Improve readability

Add more blank lines to increase readability. While at it, remove a
trailing blank line at the end of the file.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 drivers/video/backlight/pwm_bl.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index 1fea627394d7..774bce38ba42 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -269,8 +269,10 @@ static int pwm_backlight_remove(struct platform_device *pdev)
 	backlight_device_unregister(bl);
 	pwm_config(pb->pwm, 0, pb->period);
 	pwm_disable(pb->pwm);
+
 	if (pb->exit)
 		pb->exit(&pdev->dev);
+
 	return 0;
 }
 
@@ -282,10 +284,13 @@ static int pwm_backlight_suspend(struct device *dev)
 
 	if (pb->notify)
 		pb->notify(pb->dev, 0);
+
 	pwm_config(pb->pwm, 0, pb->period);
 	pwm_disable(pb->pwm);
+
 	if (pb->notify_after)
 		pb->notify_after(pb->dev, 0);
+
 	return 0;
 }
 
@@ -294,6 +299,7 @@ static int pwm_backlight_resume(struct device *dev)
 	struct backlight_device *bl = dev_get_drvdata(dev);
 
 	backlight_update_status(bl);
+
 	return 0;
 }
 #endif
@@ -317,4 +323,3 @@ module_platform_driver(pwm_backlight_driver);
 MODULE_DESCRIPTION("PWM based Backlight Driver");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:pwm-backlight");
-
-- 
cgit 


From 62b744a87c1170b339f993aa3cfb22465974816a Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Mon, 7 Oct 2013 11:32:02 +0200
Subject: pwm-backlight: Refactor backlight power on/off

In preparation for adding an optional regulator and enable GPIO to the
driver, split the power on and power off sequences into separate
functions to reduce code duplication at the multiple call sites.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 drivers/video/backlight/pwm_bl.c | 53 +++++++++++++++++++++++-----------------
 1 file changed, 31 insertions(+), 22 deletions(-)

diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index 774bce38ba42..ab9d5e6012a4 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -35,6 +35,31 @@ struct pwm_bl_data {
 	void			(*exit)(struct device *);
 };
 
+static void pwm_backlight_power_on(struct pwm_bl_data *pb, int brightness,
+				   int max)
+{
+	int duty_cycle, err;
+
+	if (pb->levels) {
+		duty_cycle = pb->levels[brightness];
+		max = pb->levels[max];
+	} else {
+		duty_cycle = brightness;
+	}
+
+	duty_cycle = (duty_cycle * (pb->period - pb->lth_brightness) / max) +
+		     pb->lth_brightness;
+
+	pwm_config(pb->pwm, duty_cycle, pb->period);
+	pwm_enable(pb->pwm);
+}
+
+static void pwm_backlight_power_off(struct pwm_bl_data *pb)
+{
+	pwm_config(pb->pwm, 0, pb->period);
+	pwm_disable(pb->pwm);
+}
+
 static int pwm_backlight_update_status(struct backlight_device *bl)
 {
 	struct pwm_bl_data *pb = bl_get_data(bl);
@@ -49,24 +74,10 @@ static int pwm_backlight_update_status(struct backlight_device *bl)
 	if (pb->notify)
 		brightness = pb->notify(pb->dev, brightness);
 
-	if (brightness == 0) {
-		pwm_config(pb->pwm, 0, pb->period);
-		pwm_disable(pb->pwm);
-	} else {
-		int duty_cycle;
-
-		if (pb->levels) {
-			duty_cycle = pb->levels[brightness];
-			max = pb->levels[max];
-		} else {
-			duty_cycle = brightness;
-		}
-
-		duty_cycle = pb->lth_brightness +
-		     (duty_cycle * (pb->period - pb->lth_brightness) / max);
-		pwm_config(pb->pwm, duty_cycle, pb->period);
-		pwm_enable(pb->pwm);
-	}
+	if (brightness > 0)
+		pwm_backlight_power_on(pb, brightness, max);
+	else
+		pwm_backlight_power_off(pb);
 
 	if (pb->notify_after)
 		pb->notify_after(pb->dev, brightness);
@@ -267,8 +278,7 @@ static int pwm_backlight_remove(struct platform_device *pdev)
 	struct pwm_bl_data *pb = bl_get_data(bl);
 
 	backlight_device_unregister(bl);
-	pwm_config(pb->pwm, 0, pb->period);
-	pwm_disable(pb->pwm);
+	pwm_backlight_power_off(pb);
 
 	if (pb->exit)
 		pb->exit(&pdev->dev);
@@ -285,8 +295,7 @@ static int pwm_backlight_suspend(struct device *dev)
 	if (pb->notify)
 		pb->notify(pb->dev, 0);
 
-	pwm_config(pb->pwm, 0, pb->period);
-	pwm_disable(pb->pwm);
+	pwm_backlight_power_off(pb);
 
 	if (pb->notify_after)
 		pb->notify_after(pb->dev, 0);
-- 
cgit 


From 97c38437115aa0c3fb2d50c488814b503ba529e0 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Wed, 2 Oct 2013 18:01:02 +0200
Subject: pwm-backlight: Track enable state

Follow up patches will add support for more complex means of powering
the backlight on and off such as using a regulator. To prevent calls to
the regulator API from becoming unbalanced, keep track of the enabled
state internally.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 drivers/video/backlight/pwm_bl.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index ab9d5e6012a4..4053efbe5edb 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -27,6 +27,7 @@ struct pwm_bl_data {
 	unsigned int		period;
 	unsigned int		lth_brightness;
 	unsigned int		*levels;
+	bool			enabled;
 	int			(*notify)(struct device *,
 					  int brightness);
 	void			(*notify_after)(struct device *,
@@ -40,6 +41,9 @@ static void pwm_backlight_power_on(struct pwm_bl_data *pb, int brightness,
 {
 	int duty_cycle, err;
 
+	if (pb->enabled)
+		return;
+
 	if (pb->levels) {
 		duty_cycle = pb->levels[brightness];
 		max = pb->levels[max];
@@ -52,12 +56,18 @@ static void pwm_backlight_power_on(struct pwm_bl_data *pb, int brightness,
 
 	pwm_config(pb->pwm, duty_cycle, pb->period);
 	pwm_enable(pb->pwm);
+	pb->enabled = true;
 }
 
 static void pwm_backlight_power_off(struct pwm_bl_data *pb)
 {
+	if (!pb->enabled)
+		return;
+
 	pwm_config(pb->pwm, 0, pb->period);
 	pwm_disable(pb->pwm);
+
+	pb->enabled = false;
 }
 
 static int pwm_backlight_update_status(struct backlight_device *bl)
@@ -216,6 +226,7 @@ static int pwm_backlight_probe(struct platform_device *pdev)
 	pb->check_fb = data->check_fb;
 	pb->exit = data->exit;
 	pb->dev = &pdev->dev;
+	pb->enabled = false;
 
 	pb->pwm = devm_pwm_get(&pdev->dev, NULL);
 	if (IS_ERR(pb->pwm)) {
-- 
cgit 


From 2b9b1620349e325f184c68cddf3b484499c163c0 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Fri, 30 Aug 2013 11:51:22 +0200
Subject: pwm-backlight: Add optional enable GPIO

To support a wider variety of backlight setups, introduce an optional
enable GPIO. Legacy users of the platform data already have a means of
supporting GPIOs by using the .init(), .exit() and .notify() hooks. DT
users however cannot use those, so an alternative method is required.

In order to ease the introduction of the optional enable GPIO, make it
available in the platform data first, so that existing users can be
converted. Once that has happened a second patch will add code to make
use of it in the driver.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 include/linux/pwm_backlight.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/pwm_backlight.h b/include/linux/pwm_backlight.h
index 56f4a866539a..2de2e275b2cb 100644
--- a/include/linux/pwm_backlight.h
+++ b/include/linux/pwm_backlight.h
@@ -6,6 +6,9 @@
 
 #include <linux/backlight.h>
 
+/* TODO: convert to gpiod_*() API once it has been merged */
+#define PWM_BACKLIGHT_GPIO_ACTIVE_LOW	(1 << 0)
+
 struct platform_pwm_backlight_data {
 	int pwm_id;
 	unsigned int max_brightness;
@@ -13,6 +16,8 @@ struct platform_pwm_backlight_data {
 	unsigned int lth_brightness;
 	unsigned int pwm_period_ns;
 	unsigned int *levels;
+	int enable_gpio;
+	unsigned long enable_gpio_flags;
 	int (*init)(struct device *dev);
 	int (*notify)(struct device *dev, int brightness);
 	void (*notify_after)(struct device *dev, int brightness);
-- 
cgit 


From d46055af1cc4ba413ae0c3b6f1e6066501f943a0 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Fri, 30 Aug 2013 12:13:53 +0200
Subject: ARM: OMAP: Initialize PWM backlight enable_gpio field

The GPIO API defines 0 as being a valid GPIO number, so this field needs
to be initialized explicitly.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 arch/arm/mach-omap2/board-zoom-peripherals.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c b/arch/arm/mach-omap2/board-zoom-peripherals.c
index a90375d5b2b6..5ed28844e673 100644
--- a/arch/arm/mach-omap2/board-zoom-peripherals.c
+++ b/arch/arm/mach-omap2/board-zoom-peripherals.c
@@ -227,6 +227,7 @@ static struct platform_pwm_backlight_data zoom_backlight_data = {
 	.max_brightness = 127,
 	.dft_brightness = 127,
 	.pwm_period_ns = 7812500,
+	.enable_gpio = -1,
 };
 
 static struct platform_device zoom_backlight_pwm = {
-- 
cgit 


From db01120c5f6cb1d8c6533a49b009f08a73852498 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Fri, 30 Aug 2013 12:15:24 +0200
Subject: ARM: pxa: Initialize PWM backlight enable_gpio field

The GPIO API defines 0 as being a valid GPIO number, so this field needs
to be initialized explicitly.

A special case is the Palm Tungsten|C board. Since it doesn't use any
quirks that would require the existing .init() or .exit() hooks it can
simply use the new enable_gpio field.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 arch/arm/mach-pxa/cm-x300.c               |  1 +
 arch/arm/mach-pxa/colibri-pxa270-income.c |  1 +
 arch/arm/mach-pxa/ezx.c                   |  1 +
 arch/arm/mach-pxa/hx4700.c                |  1 +
 arch/arm/mach-pxa/lpd270.c                |  1 +
 arch/arm/mach-pxa/magician.c              |  1 +
 arch/arm/mach-pxa/mainstone.c             |  1 +
 arch/arm/mach-pxa/mioa701.c               |  1 +
 arch/arm/mach-pxa/palm27x.c               |  1 +
 arch/arm/mach-pxa/palmtc.c                | 35 +------------------------------
 arch/arm/mach-pxa/palmte2.c               |  1 +
 arch/arm/mach-pxa/pcm990-baseboard.c      |  1 +
 arch/arm/mach-pxa/raumfeld.c              |  1 +
 arch/arm/mach-pxa/tavorevb.c              |  2 ++
 arch/arm/mach-pxa/viper.c                 |  1 +
 arch/arm/mach-pxa/z2.c                    |  2 ++
 arch/arm/mach-pxa/zylonite.c              |  1 +
 17 files changed, 19 insertions(+), 34 deletions(-)

diff --git a/arch/arm/mach-pxa/cm-x300.c b/arch/arm/mach-pxa/cm-x300.c
index f9423493ed36..584439bfa59f 100644
--- a/arch/arm/mach-pxa/cm-x300.c
+++ b/arch/arm/mach-pxa/cm-x300.c
@@ -310,6 +310,7 @@ static struct platform_pwm_backlight_data cm_x300_backlight_data = {
 	.max_brightness	= 100,
 	.dft_brightness	= 100,
 	.pwm_period_ns	= 10000,
+	.enable_gpio	= -1,
 };
 
 static struct platform_device cm_x300_backlight_device = {
diff --git a/arch/arm/mach-pxa/colibri-pxa270-income.c b/arch/arm/mach-pxa/colibri-pxa270-income.c
index 2d4a7b4d5d78..3aa264640c9d 100644
--- a/arch/arm/mach-pxa/colibri-pxa270-income.c
+++ b/arch/arm/mach-pxa/colibri-pxa270-income.c
@@ -189,6 +189,7 @@ static struct platform_pwm_backlight_data income_backlight_data = {
 	.max_brightness	= 0x3ff,
 	.dft_brightness	= 0x1ff,
 	.pwm_period_ns	= 1000000,
+	.enable_gpio	= -1,
 };
 
 static struct platform_device income_backlight = {
diff --git a/arch/arm/mach-pxa/ezx.c b/arch/arm/mach-pxa/ezx.c
index fe2eb8394dff..ab93441e596e 100644
--- a/arch/arm/mach-pxa/ezx.c
+++ b/arch/arm/mach-pxa/ezx.c
@@ -54,6 +54,7 @@ static struct platform_pwm_backlight_data ezx_backlight_data = {
 	.max_brightness	= 1023,
 	.dft_brightness	= 1023,
 	.pwm_period_ns	= 78770,
+	.enable_gpio	= -1,
 };
 
 static struct platform_device ezx_backlight_device = {
diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c
index 133109ec7332..a7c30eb0c8db 100644
--- a/arch/arm/mach-pxa/hx4700.c
+++ b/arch/arm/mach-pxa/hx4700.c
@@ -561,6 +561,7 @@ static struct platform_pwm_backlight_data backlight_data = {
 	.max_brightness = 200,
 	.dft_brightness = 100,
 	.pwm_period_ns  = 30923,
+	.enable_gpio    = -1,
 };
 
 static struct platform_device backlight = {
diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c
index 1255ee00f3d1..9f6ec167902a 100644
--- a/arch/arm/mach-pxa/lpd270.c
+++ b/arch/arm/mach-pxa/lpd270.c
@@ -269,6 +269,7 @@ static struct platform_pwm_backlight_data lpd270_backlight_data = {
 	.max_brightness	= 1,
 	.dft_brightness	= 1,
 	.pwm_period_ns	= 78770,
+	.enable_gpio	= -1,
 };
 
 static struct platform_device lpd270_backlight_device = {
diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c
index f44532fc648b..fab30d666cc7 100644
--- a/arch/arm/mach-pxa/magician.c
+++ b/arch/arm/mach-pxa/magician.c
@@ -378,6 +378,7 @@ static struct platform_pwm_backlight_data backlight_data = {
 	.max_brightness = 272,
 	.dft_brightness = 100,
 	.pwm_period_ns  = 30923,
+	.enable_gpio    = -1,
 	.init           = magician_backlight_init,
 	.notify         = magician_backlight_notify,
 	.exit           = magician_backlight_exit,
diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index dd70343c8708..08ccc0718f31 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -338,6 +338,7 @@ static struct platform_pwm_backlight_data mainstone_backlight_data = {
 	.max_brightness	= 1023,
 	.dft_brightness	= 1023,
 	.pwm_period_ns	= 78770,
+	.enable_gpio	= -1,
 };
 
 static struct platform_device mainstone_backlight_device = {
diff --git a/arch/arm/mach-pxa/mioa701.c b/arch/arm/mach-pxa/mioa701.c
index acc9d3cc0762..f70583fee59f 100644
--- a/arch/arm/mach-pxa/mioa701.c
+++ b/arch/arm/mach-pxa/mioa701.c
@@ -186,6 +186,7 @@ static struct platform_pwm_backlight_data mioa701_backlight_data = {
 	.max_brightness	= 100,
 	.dft_brightness	= 50,
 	.pwm_period_ns	= 4000 * 1024,	/* Fl = 250kHz */
+	.enable_gpio	= -1,
 };
 
 /*
diff --git a/arch/arm/mach-pxa/palm27x.c b/arch/arm/mach-pxa/palm27x.c
index 17d4c53017ca..e54a296fb81f 100644
--- a/arch/arm/mach-pxa/palm27x.c
+++ b/arch/arm/mach-pxa/palm27x.c
@@ -322,6 +322,7 @@ static struct platform_pwm_backlight_data palm27x_backlight_data = {
 	.max_brightness	= 0xfe,
 	.dft_brightness	= 0x7e,
 	.pwm_period_ns	= 3500 * 1024,
+	.enable_gpio	= -1,
 	.init		= palm27x_backlight_init,
 	.notify		= palm27x_backlight_notify,
 	.exit		= palm27x_backlight_exit,
diff --git a/arch/arm/mach-pxa/palmtc.c b/arch/arm/mach-pxa/palmtc.c
index 100b176f7e88..7691c974ca4b 100644
--- a/arch/arm/mach-pxa/palmtc.c
+++ b/arch/arm/mach-pxa/palmtc.c
@@ -166,45 +166,12 @@ static inline void palmtc_keys_init(void) {}
  * Backlight
  ******************************************************************************/
 #if defined(CONFIG_BACKLIGHT_PWM) || defined(CONFIG_BACKLIGHT_PWM_MODULE)
-static int palmtc_backlight_init(struct device *dev)
-{
-	int ret;
-
-	ret = gpio_request(GPIO_NR_PALMTC_BL_POWER, "BL POWER");
-	if (ret)
-		goto err;
-	ret = gpio_direction_output(GPIO_NR_PALMTC_BL_POWER, 1);
-	if (ret)
-		goto err2;
-
-	return 0;
-
-err2:
-	gpio_free(GPIO_NR_PALMTC_BL_POWER);
-err:
-	return ret;
-}
-
-static int palmtc_backlight_notify(struct device *dev, int brightness)
-{
-	/* backlight is on when GPIO16 AF0 is high */
-	gpio_set_value(GPIO_NR_PALMTC_BL_POWER, brightness);
-	return brightness;
-}
-
-static void palmtc_backlight_exit(struct device *dev)
-{
-	gpio_free(GPIO_NR_PALMTC_BL_POWER);
-}
-
 static struct platform_pwm_backlight_data palmtc_backlight_data = {
 	.pwm_id		= 1,
 	.max_brightness	= PALMTC_MAX_INTENSITY,
 	.dft_brightness	= PALMTC_MAX_INTENSITY,
 	.pwm_period_ns	= PALMTC_PERIOD_NS,
-	.init		= palmtc_backlight_init,
-	.notify		= palmtc_backlight_notify,
-	.exit		= palmtc_backlight_exit,
+	.enable_gpio	= GPIO_NR_PALMTC_BL_POWER,
 };
 
 static struct platform_device palmtc_backlight = {
diff --git a/arch/arm/mach-pxa/palmte2.c b/arch/arm/mach-pxa/palmte2.c
index 0742721ced2d..956fd24ee6fd 100644
--- a/arch/arm/mach-pxa/palmte2.c
+++ b/arch/arm/mach-pxa/palmte2.c
@@ -165,6 +165,7 @@ static struct platform_pwm_backlight_data palmte2_backlight_data = {
 	.max_brightness	= PALMTE2_MAX_INTENSITY,
 	.dft_brightness	= PALMTE2_MAX_INTENSITY,
 	.pwm_period_ns	= PALMTE2_PERIOD_NS,
+	.enable_gpio	= -1,
 	.init		= palmte2_backlight_init,
 	.notify		= palmte2_backlight_notify,
 	.exit		= palmte2_backlight_exit,
diff --git a/arch/arm/mach-pxa/pcm990-baseboard.c b/arch/arm/mach-pxa/pcm990-baseboard.c
index 3133ba82c508..9a4e470f162b 100644
--- a/arch/arm/mach-pxa/pcm990-baseboard.c
+++ b/arch/arm/mach-pxa/pcm990-baseboard.c
@@ -153,6 +153,7 @@ static struct platform_pwm_backlight_data pcm990_backlight_data = {
 	.max_brightness	= 1023,
 	.dft_brightness	= 1023,
 	.pwm_period_ns	= 78770,
+	.enable_gpio	= -1,
 };
 
 static struct platform_device pcm990_backlight_device = {
diff --git a/arch/arm/mach-pxa/raumfeld.c b/arch/arm/mach-pxa/raumfeld.c
index 969b0ba7fa70..8386dc30b3e4 100644
--- a/arch/arm/mach-pxa/raumfeld.c
+++ b/arch/arm/mach-pxa/raumfeld.c
@@ -539,6 +539,7 @@ static struct platform_pwm_backlight_data raumfeld_pwm_backlight_data = {
 	.dft_brightness	= 100,
 	/* 10000 ns = 10 ms ^= 100 kHz */
 	.pwm_period_ns	= 10000,
+	.enable_gpio	= -1,
 };
 
 static struct platform_device raumfeld_pwm_backlight_device = {
diff --git a/arch/arm/mach-pxa/tavorevb.c b/arch/arm/mach-pxa/tavorevb.c
index 4680efe55345..a71da84e784b 100644
--- a/arch/arm/mach-pxa/tavorevb.c
+++ b/arch/arm/mach-pxa/tavorevb.c
@@ -175,6 +175,7 @@ static struct platform_pwm_backlight_data tavorevb_backlight_data[] = {
 		.max_brightness	= 100,
 		.dft_brightness	= 100,
 		.pwm_period_ns	= 100000,
+		.enable_gpio	= -1,
 	},
 	[1] = {
 		/* secondary backlight */
@@ -182,6 +183,7 @@ static struct platform_pwm_backlight_data tavorevb_backlight_data[] = {
 		.max_brightness	= 100,
 		.dft_brightness	= 100,
 		.pwm_period_ns	= 100000,
+		.enable_gpio	= -1,
 	},
 };
 
diff --git a/arch/arm/mach-pxa/viper.c b/arch/arm/mach-pxa/viper.c
index 9c363c081d3f..29905b127ad9 100644
--- a/arch/arm/mach-pxa/viper.c
+++ b/arch/arm/mach-pxa/viper.c
@@ -401,6 +401,7 @@ static struct platform_pwm_backlight_data viper_backlight_data = {
 	.max_brightness	= 100,
 	.dft_brightness	= 100,
 	.pwm_period_ns	= 1000000,
+	.enable_gpio	= -1,
 	.init		= viper_backlight_init,
 	.notify		= viper_backlight_notify,
 	.exit		= viper_backlight_exit,
diff --git a/arch/arm/mach-pxa/z2.c b/arch/arm/mach-pxa/z2.c
index 2513d8f4931f..e1a121b36cfa 100644
--- a/arch/arm/mach-pxa/z2.c
+++ b/arch/arm/mach-pxa/z2.c
@@ -206,6 +206,7 @@ static struct platform_pwm_backlight_data z2_backlight_data[] = {
 		.max_brightness	= 1023,
 		.dft_brightness	= 0,
 		.pwm_period_ns	= 1260320,
+		.enable_gpio	= -1,
 	},
 	[1] = {
 		/* LCD Backlight */
@@ -213,6 +214,7 @@ static struct platform_pwm_backlight_data z2_backlight_data[] = {
 		.max_brightness	= 1023,
 		.dft_brightness	= 512,
 		.pwm_period_ns	= 1260320,
+		.enable_gpio	= -1,
 	},
 };
 
diff --git a/arch/arm/mach-pxa/zylonite.c b/arch/arm/mach-pxa/zylonite.c
index 36cf7cf95ec1..77daea478e88 100644
--- a/arch/arm/mach-pxa/zylonite.c
+++ b/arch/arm/mach-pxa/zylonite.c
@@ -125,6 +125,7 @@ static struct platform_pwm_backlight_data zylonite_backlight_data = {
 	.max_brightness	= 100,
 	.dft_brightness	= 100,
 	.pwm_period_ns	= 10000,
+	.enable_gpio	= -1,
 };
 
 static struct platform_device zylonite_backlight_device = {
-- 
cgit 


From a63652f1a7b5b04545bfe0ebc9e54f32bde05caf Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Fri, 30 Aug 2013 12:19:52 +0200
Subject: ARM: SAMSUNG: Initialize PWM backlight enable_gpio field

The GPIO API defines 0 as being a valid GPIO number, so this field needs
to be initialized explicitly.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 arch/arm/mach-s3c24xx/mach-h1940.c    | 1 +
 arch/arm/mach-s3c24xx/mach-rx1950.c   | 1 +
 arch/arm/mach-s3c64xx/mach-crag6410.c | 1 +
 arch/arm/mach-s3c64xx/mach-hmt.c      | 1 +
 arch/arm/mach-s3c64xx/mach-smartq.c   | 1 +
 arch/arm/mach-s3c64xx/mach-smdk6410.c | 1 +
 arch/arm/mach-s5p64x0/mach-smdk6440.c | 1 +
 arch/arm/mach-s5p64x0/mach-smdk6450.c | 1 +
 arch/arm/mach-s5pc100/mach-smdkc100.c | 1 +
 arch/arm/mach-s5pv210/mach-smdkv210.c | 1 +
 arch/arm/plat-samsung/dev-backlight.c | 5 +++++
 11 files changed, 15 insertions(+)

diff --git a/arch/arm/mach-s3c24xx/mach-h1940.c b/arch/arm/mach-s3c24xx/mach-h1940.c
index 74dd47988b41..952b6a040d1f 100644
--- a/arch/arm/mach-s3c24xx/mach-h1940.c
+++ b/arch/arm/mach-s3c24xx/mach-h1940.c
@@ -504,6 +504,7 @@ static struct platform_pwm_backlight_data backlight_data = {
 	.dft_brightness = 50,
 	/* tcnt = 0x31 */
 	.pwm_period_ns  = 36296,
+	.enable_gpio    = -1,
 	.init           = h1940_backlight_init,
 	.notify		= h1940_backlight_notify,
 	.exit           = h1940_backlight_exit,
diff --git a/arch/arm/mach-s3c24xx/mach-rx1950.c b/arch/arm/mach-s3c24xx/mach-rx1950.c
index 206b1f7546d1..034b7fe45c49 100644
--- a/arch/arm/mach-s3c24xx/mach-rx1950.c
+++ b/arch/arm/mach-s3c24xx/mach-rx1950.c
@@ -522,6 +522,7 @@ static struct platform_pwm_backlight_data rx1950_backlight_data = {
 	.max_brightness = 24,
 	.dft_brightness = 4,
 	.pwm_period_ns = 48000,
+	.enable_gpio = -1,
 	.init = rx1950_backlight_init,
 	.notify = rx1950_backlight_notify,
 	.exit = rx1950_backlight_exit,
diff --git a/arch/arm/mach-s3c64xx/mach-crag6410.c b/arch/arm/mach-s3c64xx/mach-crag6410.c
index eb8e5a1aca42..51d0fcd161d5 100644
--- a/arch/arm/mach-s3c64xx/mach-crag6410.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410.c
@@ -114,6 +114,7 @@ static struct platform_pwm_backlight_data crag6410_backlight_data = {
 	.max_brightness	= 1000,
 	.dft_brightness	= 600,
 	.pwm_period_ns	= 100000,	/* about 1kHz */
+	.enable_gpio	= -1,
 };
 
 static struct platform_device crag6410_backlight_device = {
diff --git a/arch/arm/mach-s3c64xx/mach-hmt.c b/arch/arm/mach-s3c64xx/mach-hmt.c
index f39569e0f2e6..7ce417da3103 100644
--- a/arch/arm/mach-s3c64xx/mach-hmt.c
+++ b/arch/arm/mach-s3c64xx/mach-hmt.c
@@ -114,6 +114,7 @@ static struct platform_pwm_backlight_data hmt_backlight_data = {
 	.max_brightness	= 100 * 256,
 	.dft_brightness	= 40 * 256,
 	.pwm_period_ns	= 1000000000 / (100 * 256 * 20),
+	.enable_gpio	= -1,
 	.init		= hmt_bl_init,
 	.notify		= hmt_bl_notify,
 	.exit		= hmt_bl_exit,
diff --git a/arch/arm/mach-s3c64xx/mach-smartq.c b/arch/arm/mach-s3c64xx/mach-smartq.c
index 86d980b448fd..f3699a92d438 100644
--- a/arch/arm/mach-s3c64xx/mach-smartq.c
+++ b/arch/arm/mach-s3c64xx/mach-smartq.c
@@ -151,6 +151,7 @@ static struct platform_pwm_backlight_data smartq_backlight_data = {
 	.max_brightness	= 1000,
 	.dft_brightness	= 600,
 	.pwm_period_ns	= 1000000000 / (1000 * 20),
+	.enable_gpio	= -1,
 	.init		= smartq_bl_init,
 };
 
diff --git a/arch/arm/mach-s3c64xx/mach-smdk6410.c b/arch/arm/mach-s3c64xx/mach-smdk6410.c
index d90b450c5645..0bf5b331ba5c 100644
--- a/arch/arm/mach-s3c64xx/mach-smdk6410.c
+++ b/arch/arm/mach-s3c64xx/mach-smdk6410.c
@@ -625,6 +625,7 @@ static struct samsung_bl_gpio_info smdk6410_bl_gpio_info = {
 
 static struct platform_pwm_backlight_data smdk6410_bl_data = {
 	.pwm_id = 1,
+	.enable_gpio = -1,
 };
 
 static struct s3c_hsotg_plat smdk6410_hsotg_pdata;
diff --git a/arch/arm/mach-s5p64x0/mach-smdk6440.c b/arch/arm/mach-s5p64x0/mach-smdk6440.c
index 0b00304c1e91..9efdcc03df3b 100644
--- a/arch/arm/mach-s5p64x0/mach-smdk6440.c
+++ b/arch/arm/mach-s5p64x0/mach-smdk6440.c
@@ -223,6 +223,7 @@ static struct samsung_bl_gpio_info smdk6440_bl_gpio_info = {
 
 static struct platform_pwm_backlight_data smdk6440_bl_data = {
 	.pwm_id = 1,
+	.enable_gpio = -1,
 };
 
 static void __init smdk6440_map_io(void)
diff --git a/arch/arm/mach-s5p64x0/mach-smdk6450.c b/arch/arm/mach-s5p64x0/mach-smdk6450.c
index 5949296e88fd..c3cacc067efe 100644
--- a/arch/arm/mach-s5p64x0/mach-smdk6450.c
+++ b/arch/arm/mach-s5p64x0/mach-smdk6450.c
@@ -242,6 +242,7 @@ static struct samsung_bl_gpio_info smdk6450_bl_gpio_info = {
 
 static struct platform_pwm_backlight_data smdk6450_bl_data = {
 	.pwm_id = 1,
+	.enable_gpio = -1,
 };
 
 static void __init smdk6450_map_io(void)
diff --git a/arch/arm/mach-s5pc100/mach-smdkc100.c b/arch/arm/mach-s5pc100/mach-smdkc100.c
index 7c57a221785e..9e256b9fc930 100644
--- a/arch/arm/mach-s5pc100/mach-smdkc100.c
+++ b/arch/arm/mach-s5pc100/mach-smdkc100.c
@@ -216,6 +216,7 @@ static struct samsung_bl_gpio_info smdkc100_bl_gpio_info = {
 
 static struct platform_pwm_backlight_data smdkc100_bl_data = {
 	.pwm_id = 0,
+	.enable_gpio = -1,
 };
 
 static void __init smdkc100_map_io(void)
diff --git a/arch/arm/mach-s5pv210/mach-smdkv210.c b/arch/arm/mach-s5pv210/mach-smdkv210.c
index 6d72bb992e38..f52cc15c2d85 100644
--- a/arch/arm/mach-s5pv210/mach-smdkv210.c
+++ b/arch/arm/mach-s5pv210/mach-smdkv210.c
@@ -279,6 +279,7 @@ static struct samsung_bl_gpio_info smdkv210_bl_gpio_info = {
 static struct platform_pwm_backlight_data smdkv210_bl_data = {
 	.pwm_id = 3,
 	.pwm_period_ns = 1000,
+	.enable_gpio = -1,
 };
 
 static void __init smdkv210_map_io(void)
diff --git a/arch/arm/plat-samsung/dev-backlight.c b/arch/arm/plat-samsung/dev-backlight.c
index d51f9565567c..be4ad0b21c08 100644
--- a/arch/arm/plat-samsung/dev-backlight.c
+++ b/arch/arm/plat-samsung/dev-backlight.c
@@ -70,6 +70,7 @@ static struct samsung_bl_drvdata samsung_dfl_bl_data __initdata = {
 		.max_brightness = 255,
 		.dft_brightness = 255,
 		.pwm_period_ns  = 78770,
+		.enable_gpio    = -1,
 		.init           = samsung_bl_init,
 		.exit           = samsung_bl_exit,
 	},
@@ -121,6 +122,10 @@ void __init samsung_bl_set(struct samsung_bl_gpio_info *gpio_info,
 		samsung_bl_data->lth_brightness = bl_data->lth_brightness;
 	if (bl_data->pwm_period_ns)
 		samsung_bl_data->pwm_period_ns = bl_data->pwm_period_ns;
+	if (bl_data->enable_gpio >= 0)
+		samsung_bl_data->enable_gpio = bl_data->enable_gpio;
+	if (bl_data->enable_gpio_flags)
+		samsung_bl_data->enable_gpio_flags = bl_data->enable_gpio_flags;
 	if (bl_data->init)
 		samsung_bl_data->init = bl_data->init;
 	if (bl_data->notify)
-- 
cgit 


From bf4d252a2906df097874926bcfff6a3bcef38491 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Fri, 30 Aug 2013 12:21:42 +0200
Subject: ARM: shmobile: Initialize PWM backlight enable_gpio field

The GPIO API defines 0 as being a valid GPIO number, so this field needs
to be initialized explicitly.

Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 arch/arm/mach-shmobile/board-armadillo800eva.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-shmobile/board-armadillo800eva.c b/arch/arm/mach-shmobile/board-armadillo800eva.c
index 5bd1479d3deb..f68634a07c15 100644
--- a/arch/arm/mach-shmobile/board-armadillo800eva.c
+++ b/arch/arm/mach-shmobile/board-armadillo800eva.c
@@ -423,6 +423,7 @@ static struct platform_pwm_backlight_data pwm_backlight_data = {
 	.max_brightness = 255,
 	.dft_brightness = 255,
 	.pwm_period_ns = 33333, /* 30kHz */
+	.enable_gpio = -1,
 };
 
 static struct platform_device pwm_backlight_device = {
-- 
cgit 


From 611c86c6de7a58c59b231804ffa19d1b70f6fd90 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Fri, 30 Aug 2013 13:30:32 +0200
Subject: unicore32: Initialize PWM backlight enable_gpio field

The GPIO API defines 0 as being a valid GPIO number, so this field needs
to be initialized explicitly.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 arch/unicore32/kernel/puv3-nb0916.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/unicore32/kernel/puv3-nb0916.c b/arch/unicore32/kernel/puv3-nb0916.c
index 181108b8ecce..0c6618e71897 100644
--- a/arch/unicore32/kernel/puv3-nb0916.c
+++ b/arch/unicore32/kernel/puv3-nb0916.c
@@ -54,6 +54,7 @@ static struct platform_pwm_backlight_data nb0916_backlight_data = {
 	.max_brightness	= 100,
 	.dft_brightness	= 100,
 	.pwm_period_ns	= 70 * 1024,
+	.enable_gpio	= -1,
 };
 
 static struct gpio_keys_button nb0916_gpio_keys[] = {
-- 
cgit 


From 8265b2e4e62632b01f998095d1bbda4d281629fe Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Fri, 30 Aug 2013 12:32:18 +0200
Subject: pwm-backlight: Use new enable_gpio field

Make use of the new enable_gpio field and allow it to be set from DT as
well. Now that all legacy users of platform data have been converted to
initialize this field to an invalid value, it is safe to use the field
from the driver.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 .../bindings/video/backlight/pwm-backlight.txt     |  5 ++
 drivers/video/backlight/pwm_bl.c                   | 57 +++++++++++++++++++---
 2 files changed, 55 insertions(+), 7 deletions(-)

diff --git a/Documentation/devicetree/bindings/video/backlight/pwm-backlight.txt b/Documentation/devicetree/bindings/video/backlight/pwm-backlight.txt
index 1e4fc727f3b1..72810cc2dbc1 100644
--- a/Documentation/devicetree/bindings/video/backlight/pwm-backlight.txt
+++ b/Documentation/devicetree/bindings/video/backlight/pwm-backlight.txt
@@ -14,8 +14,11 @@ Required properties:
 Optional properties:
   - pwm-names: a list of names for the PWM devices specified in the
                "pwms" property (see PWM binding[0])
+  - enable-gpios: contains a single GPIO specifier for the GPIO which enables
+                  and disables the backlight (see GPIO binding[1])
 
 [0]: Documentation/devicetree/bindings/pwm/pwm.txt
+[1]: Documentation/devicetree/bindings/gpio/gpio.txt
 
 Example:
 
@@ -25,4 +28,6 @@ Example:
 
 		brightness-levels = <0 4 8 16 32 64 128 255>;
 		default-brightness-level = <6>;
+
+		enable-gpios = <&gpio 58 0>;
 	};
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index 4053efbe5edb..cdef4a346555 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -10,6 +10,8 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/gpio.h>
+#include <linux/of_gpio.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -28,6 +30,8 @@ struct pwm_bl_data {
 	unsigned int		lth_brightness;
 	unsigned int		*levels;
 	bool			enabled;
+	int			enable_gpio;
+	unsigned long		enable_gpio_flags;
 	int			(*notify)(struct device *,
 					  int brightness);
 	void			(*notify_after)(struct device *,
@@ -55,6 +59,14 @@ static void pwm_backlight_power_on(struct pwm_bl_data *pb, int brightness,
 		     pb->lth_brightness;
 
 	pwm_config(pb->pwm, duty_cycle, pb->period);
+
+	if (gpio_is_valid(pb->enable_gpio)) {
+		if (pb->enable_gpio_flags & PWM_BACKLIGHT_GPIO_ACTIVE_LOW)
+			gpio_set_value(pb->enable_gpio, 0);
+		else
+			gpio_set_value(pb->enable_gpio, 1);
+	}
+
 	pwm_enable(pb->pwm);
 	pb->enabled = true;
 }
@@ -67,6 +79,13 @@ static void pwm_backlight_power_off(struct pwm_bl_data *pb)
 	pwm_config(pb->pwm, 0, pb->period);
 	pwm_disable(pb->pwm);
 
+	if (gpio_is_valid(pb->enable_gpio)) {
+		if (pb->enable_gpio_flags & PWM_BACKLIGHT_GPIO_ACTIVE_LOW)
+			gpio_set_value(pb->enable_gpio, 1);
+		else
+			gpio_set_value(pb->enable_gpio, 0);
+	}
+
 	pb->enabled = false;
 }
 
@@ -119,6 +138,7 @@ static int pwm_backlight_parse_dt(struct device *dev,
 				  struct platform_pwm_backlight_data *data)
 {
 	struct device_node *node = dev->of_node;
+	enum of_gpio_flags flags;
 	struct property *prop;
 	int length;
 	u32 value;
@@ -159,11 +179,13 @@ static int pwm_backlight_parse_dt(struct device *dev,
 		data->max_brightness--;
 	}
 
-	/*
-	 * TODO: Most users of this driver use a number of GPIOs to control
-	 *       backlight power. Support for specifying these needs to be
-	 *       added.
-	 */
+	data->enable_gpio = of_get_named_gpio_flags(node, "enable-gpios", 0,
+						    &flags);
+	if (data->enable_gpio == -EPROBE_DEFER)
+		return -EPROBE_DEFER;
+
+	if (gpio_is_valid(data->enable_gpio) && (flags & OF_GPIO_ACTIVE_LOW))
+		data->enable_gpio_flags |= PWM_BACKLIGHT_GPIO_ACTIVE_LOW;
 
 	return 0;
 }
@@ -221,6 +243,8 @@ static int pwm_backlight_probe(struct platform_device *pdev)
 	} else
 		max = data->max_brightness;
 
+	pb->enable_gpio = data->enable_gpio;
+	pb->enable_gpio_flags = data->enable_gpio_flags;
 	pb->notify = data->notify;
 	pb->notify_after = data->notify_after;
 	pb->check_fb = data->check_fb;
@@ -228,6 +252,22 @@ static int pwm_backlight_probe(struct platform_device *pdev)
 	pb->dev = &pdev->dev;
 	pb->enabled = false;
 
+	if (gpio_is_valid(pb->enable_gpio)) {
+		unsigned long flags;
+
+		if (pb->enable_gpio_flags & PWM_BACKLIGHT_GPIO_ACTIVE_LOW)
+			flags = GPIOF_OUT_INIT_HIGH;
+		else
+			flags = GPIOF_OUT_INIT_LOW;
+
+		ret = gpio_request_one(pb->enable_gpio, flags, "enable");
+		if (ret < 0) {
+			dev_err(&pdev->dev, "failed to request GPIO#%d: %d\n",
+				pb->enable_gpio, ret);
+			goto err_alloc;
+		}
+	}
+
 	pb->pwm = devm_pwm_get(&pdev->dev, NULL);
 	if (IS_ERR(pb->pwm)) {
 		dev_err(&pdev->dev, "unable to request PWM, trying legacy API\n");
@@ -236,7 +276,7 @@ static int pwm_backlight_probe(struct platform_device *pdev)
 		if (IS_ERR(pb->pwm)) {
 			dev_err(&pdev->dev, "unable to request legacy PWM\n");
 			ret = PTR_ERR(pb->pwm);
-			goto err_alloc;
+			goto err_gpio;
 		}
 	}
 
@@ -261,7 +301,7 @@ static int pwm_backlight_probe(struct platform_device *pdev)
 	if (IS_ERR(bl)) {
 		dev_err(&pdev->dev, "failed to register backlight\n");
 		ret = PTR_ERR(bl);
-		goto err_alloc;
+		goto err_gpio;
 	}
 
 	if (data->dft_brightness > data->max_brightness) {
@@ -277,6 +317,9 @@ static int pwm_backlight_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, bl);
 	return 0;
 
+err_gpio:
+	if (gpio_is_valid(pb->enable_gpio))
+		gpio_free(pb->enable_gpio);
 err_alloc:
 	if (data->exit)
 		data->exit(&pdev->dev);
-- 
cgit 


From 22ceeee16eb8f0d04de3ef43a5174fb30ec18af9 Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Fri, 30 Aug 2013 12:38:34 +0200
Subject: pwm-backlight: Add power supply support

Backlights require a power supply to work properly. This commit adds a
regulator to power up and power down the backlight.

Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 .../devicetree/bindings/video/backlight/pwm-backlight.txt   |  2 ++
 drivers/video/backlight/pwm_bl.c                            | 13 +++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/Documentation/devicetree/bindings/video/backlight/pwm-backlight.txt b/Documentation/devicetree/bindings/video/backlight/pwm-backlight.txt
index 72810cc2dbc1..764db86d441a 100644
--- a/Documentation/devicetree/bindings/video/backlight/pwm-backlight.txt
+++ b/Documentation/devicetree/bindings/video/backlight/pwm-backlight.txt
@@ -10,6 +10,7 @@ Required properties:
       last value in the array represents a 100% duty cycle (brightest).
   - default-brightness-level: the default brightness level (index into the
       array defined by the "brightness-levels" property)
+  - power-supply: regulator for supply voltage
 
 Optional properties:
   - pwm-names: a list of names for the PWM devices specified in the
@@ -29,5 +30,6 @@ Example:
 		brightness-levels = <0 4 8 16 32 64 128 255>;
 		default-brightness-level = <6>;
 
+		power-supply = <&vdd_bl_reg>;
 		enable-gpios = <&gpio 58 0>;
 	};
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index cdef4a346555..eec6c98527f9 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -21,6 +21,7 @@
 #include <linux/err.h>
 #include <linux/pwm.h>
 #include <linux/pwm_backlight.h>
+#include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 
 struct pwm_bl_data {
@@ -30,6 +31,7 @@ struct pwm_bl_data {
 	unsigned int		lth_brightness;
 	unsigned int		*levels;
 	bool			enabled;
+	struct regulator	*power_supply;
 	int			enable_gpio;
 	unsigned long		enable_gpio_flags;
 	int			(*notify)(struct device *,
@@ -60,6 +62,10 @@ static void pwm_backlight_power_on(struct pwm_bl_data *pb, int brightness,
 
 	pwm_config(pb->pwm, duty_cycle, pb->period);
 
+	err = regulator_enable(pb->power_supply);
+	if (err < 0)
+		dev_err(pb->dev, "failed to enable power supply\n");
+
 	if (gpio_is_valid(pb->enable_gpio)) {
 		if (pb->enable_gpio_flags & PWM_BACKLIGHT_GPIO_ACTIVE_LOW)
 			gpio_set_value(pb->enable_gpio, 0);
@@ -86,6 +92,7 @@ static void pwm_backlight_power_off(struct pwm_bl_data *pb)
 			gpio_set_value(pb->enable_gpio, 0);
 	}
 
+	regulator_disable(pb->power_supply);
 	pb->enabled = false;
 }
 
@@ -268,6 +275,12 @@ static int pwm_backlight_probe(struct platform_device *pdev)
 		}
 	}
 
+	pb->power_supply = devm_regulator_get(&pdev->dev, "power");
+	if (IS_ERR(pb->power_supply)) {
+		ret = PTR_ERR(pb->power_supply);
+		goto err_gpio;
+	}
+
 	pb->pwm = devm_pwm_get(&pdev->dev, NULL);
 	if (IS_ERR(pb->pwm)) {
 		dev_err(&pdev->dev, "unable to request PWM, trying legacy API\n");
-- 
cgit 


From 8f43e18e2769b3b28383903d501b4da29e388aad Mon Sep 17 00:00:00 2001
From: Mike Dunn <mikedunn@newsguy.com>
Date: Sun, 22 Sep 2013 09:59:56 -0700
Subject: pwm-backlight: Allow for non-increasing brightness levels

Currently the driver assumes that the values specified in the
brightness-levels device tree property increase as they are parsed from
left to right.  But boards that invert the signal between the PWM output
and the backlight will need to specify decreasing brightness-levels.
This patch removes the assumption that the last element of the array is
the maximum value, and instead searches the array for the maximum value
and uses that in the duty cycle calculation.

Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 drivers/video/backlight/pwm_bl.c | 29 +++++++++++++++--------------
 1 file changed, 15 insertions(+), 14 deletions(-)

diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index eec6c98527f9..32e96e3525a1 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -34,6 +34,7 @@ struct pwm_bl_data {
 	struct regulator	*power_supply;
 	int			enable_gpio;
 	unsigned long		enable_gpio_flags;
+	unsigned int		scale;
 	int			(*notify)(struct device *,
 					  int brightness);
 	void			(*notify_after)(struct device *,
@@ -42,23 +43,20 @@ struct pwm_bl_data {
 	void			(*exit)(struct device *);
 };
 
-static void pwm_backlight_power_on(struct pwm_bl_data *pb, int brightness,
-				   int max)
+static void pwm_backlight_power_on(struct pwm_bl_data *pb, int brightness)
 {
+	unsigned int lth = pb->lth_brightness;
 	int duty_cycle, err;
 
 	if (pb->enabled)
 		return;
 
-	if (pb->levels) {
+	if (pb->levels)
 		duty_cycle = pb->levels[brightness];
-		max = pb->levels[max];
-	} else {
+	else
 		duty_cycle = brightness;
-	}
 
-	duty_cycle = (duty_cycle * (pb->period - pb->lth_brightness) / max) +
-		     pb->lth_brightness;
+	duty_cycle = (duty_cycle * (pb->period - lth) / pb->scale) + lth;
 
 	pwm_config(pb->pwm, duty_cycle, pb->period);
 
@@ -100,7 +98,6 @@ static int pwm_backlight_update_status(struct backlight_device *bl)
 {
 	struct pwm_bl_data *pb = bl_get_data(bl);
 	int brightness = bl->props.brightness;
-	int max = bl->props.max_brightness;
 
 	if (bl->props.power != FB_BLANK_UNBLANK ||
 	    bl->props.fb_blank != FB_BLANK_UNBLANK ||
@@ -111,7 +108,7 @@ static int pwm_backlight_update_status(struct backlight_device *bl)
 		brightness = pb->notify(pb->dev, brightness);
 
 	if (brightness > 0)
-		pwm_backlight_power_on(pb, brightness, max);
+		pwm_backlight_power_on(pb, brightness);
 	else
 		pwm_backlight_power_off(pb);
 
@@ -218,7 +215,6 @@ static int pwm_backlight_probe(struct platform_device *pdev)
 	struct backlight_properties props;
 	struct backlight_device *bl;
 	struct pwm_bl_data *pb;
-	unsigned int max;
 	int ret;
 
 	if (!data) {
@@ -245,10 +241,15 @@ static int pwm_backlight_probe(struct platform_device *pdev)
 	}
 
 	if (data->levels) {
-		max = data->levels[data->max_brightness];
+		unsigned int i;
+
+		for (i = 0; i <= data->max_brightness; i++)
+			if (data->levels[i] > pb->scale)
+				pb->scale = data->levels[i];
+
 		pb->levels = data->levels;
 	} else
-		max = data->max_brightness;
+		pb->scale = data->max_brightness;
 
 	pb->enable_gpio = data->enable_gpio;
 	pb->enable_gpio_flags = data->enable_gpio_flags;
@@ -304,7 +305,7 @@ static int pwm_backlight_probe(struct platform_device *pdev)
 		pwm_set_period(pb->pwm, data->pwm_period_ns);
 
 	pb->period = pwm_get_period(pb->pwm);
-	pb->lth_brightness = data->lth_brightness * (pb->period / max);
+	pb->lth_brightness = data->lth_brightness * (pb->period / pb->scale);
 
 	memset(&props, 0, sizeof(struct backlight_properties));
 	props.type = BACKLIGHT_RAW;
-- 
cgit 


From 46cad2edb13be71ae11da896411db8a42b82d555 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 16 Oct 2013 00:16:46 -0700
Subject: Bluetooth: Rename create_ad into create_adv_data

Rename the create_ad function into create_adv_data to make it clear
that it is used to create the advertising data. This is important
since later on a function adding the scan response data will be
added.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 90d935373449..54f14547259b 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -536,7 +536,7 @@ static u8 *create_uuid128_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
 	return ptr;
 }
 
-static u8 create_ad(struct hci_dev *hdev, u8 *ptr)
+static u8 create_adv_data(struct hci_dev *hdev, u8 *ptr)
 {
 	u8 ad_len = 0, flags = 0;
 	size_t name_len;
@@ -605,7 +605,7 @@ static void update_ad(struct hci_request *req)
 
 	memset(&cp, 0, sizeof(cp));
 
-	len = create_ad(hdev, cp.data);
+	len = create_adv_data(hdev, cp.data);
 
 	if (hdev->adv_data_len == len &&
 	    memcmp(cp.data, hdev->adv_data, len) == 0)
-- 
cgit 


From f8e808bd6853f1ada3614f99c95beac1bc2f2140 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 16 Oct 2013 00:16:47 -0700
Subject: Bluetooth: Store scan response data in HCI device

The scan response data needs to be stored in HCI device and so
add a buffer for it and also ensure to clear it when resetting
the controller.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h | 2 ++
 net/bluetooth/hci_event.c        | 3 +++
 2 files changed, 5 insertions(+)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 0a3a10a76b6c..d987c795ba14 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -283,6 +283,8 @@ struct hci_dev {
 	__s8			adv_tx_power;
 	__u8			adv_data[HCI_MAX_AD_LENGTH];
 	__u8			adv_data_len;
+	__u8			scan_rsp_data[HCI_MAX_AD_LENGTH];
+	__u8			scan_rsp_data_len;
 
 	int (*open)(struct hci_dev *hdev);
 	int (*close)(struct hci_dev *hdev);
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 7450626b7704..e71c98fedc9b 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -195,6 +195,9 @@ static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
 
 	memset(hdev->adv_data, 0, sizeof(hdev->adv_data));
 	hdev->adv_data_len = 0;
+
+	memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data));
+	hdev->scan_rsp_data_len = 0;
 }
 
 static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb)
-- 
cgit 


From f14d8f643733a564b299ec24464ae23a0d7eb230 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 16 Oct 2013 00:16:48 -0700
Subject: Bluetooth: Set the scan response data when needed

On controller power on and when enabling LE functionality,
make sure that also the scan response data is correctly set.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci.h |  6 ++++++
 net/bluetooth/mgmt.c        | 38 +++++++++++++++++++++++++++++++++++++-
 2 files changed, 43 insertions(+), 1 deletion(-)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 8b8c3e2ddb06..aca8944b3e30 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -1094,6 +1094,12 @@ struct hci_cp_le_set_adv_data {
 	__u8	data[HCI_MAX_AD_LENGTH];
 } __packed;
 
+#define HCI_OP_LE_SET_SCAN_RSP_DATA	0x2009
+struct hci_cp_le_set_scan_rsp_data {
+	__u8	length;
+	__u8	data[HCI_MAX_AD_LENGTH];
+} __packed;
+
 #define HCI_OP_LE_SET_ADV_ENABLE	0x200a
 
 #define LE_SCAN_PASSIVE			0x00
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 54f14547259b..59bbf434ba9a 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -536,6 +536,36 @@ static u8 *create_uuid128_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
 	return ptr;
 }
 
+static u8 create_scan_rsp_data(struct hci_dev *hdev, u8 *ptr)
+{
+	return 0;
+}
+
+static void update_scan_rsp_data(struct hci_request *req)
+{
+	struct hci_dev *hdev = req->hdev;
+	struct hci_cp_le_set_scan_rsp_data cp;
+	u8 len;
+
+	if (!lmp_le_capable(hdev))
+		return;
+
+	memset(&cp, 0, sizeof(cp));
+
+	len = create_scan_rsp_data(hdev, cp.data);
+
+	if (hdev->adv_data_len == len &&
+	    memcmp(cp.data, hdev->adv_data, len) == 0)
+		return;
+
+	memcpy(hdev->adv_data, cp.data, sizeof(cp.data));
+	hdev->adv_data_len = len;
+
+	cp.length = len;
+
+	hci_req_add(req, HCI_OP_LE_SET_SCAN_RSP_DATA, sizeof(cp), &cp);
+}
+
 static u8 create_adv_data(struct hci_dev *hdev, u8 *ptr)
 {
 	u8 ad_len = 0, flags = 0;
@@ -1715,6 +1745,7 @@ static void le_enable_complete(struct hci_dev *hdev, u8 status)
 
 		hci_req_init(&req, hdev);
 		update_ad(&req);
+		update_scan_rsp_data(&req);
 		hci_req_run(&req, NULL);
 
 		hci_dev_unlock(hdev);
@@ -3898,6 +3929,9 @@ static int set_bredr(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 	if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
 		set_bredr_scan(&req);
 
+	/* Since only the advertising data flags will change, there
+	 * is no need to update the scan response data.
+	 */
 	update_ad(&req);
 
 	err = hci_req_run(&req, set_bredr_complete);
@@ -4211,8 +4245,10 @@ static int powered_update_hci(struct hci_dev *hdev)
 		 * advertising data. This also applies to the case
 		 * where BR/EDR was toggled during the AUTO_OFF phase.
 		 */
-		if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags))
+		if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) {
 			update_ad(&req);
+			update_scan_rsp_data(&req);
+		}
 
 		if (test_bit(HCI_ADVERTISING, &hdev->dev_flags))
 			enable_advertising(&req);
-- 
cgit 


From 7a5f4990a4c6934a84b040337bdd7682637c2562 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 16 Oct 2013 00:16:49 -0700
Subject: Bluetooth: Store device name in scan response data

The scan response data is a better place to store the device name
since it has more space available and is also enforcing privacy.

When the controller is advertising, the connectable setting decides
if ADV_IND or ADV_NONCONN_IND is used. In case of ADV_IND, the
remote side is allowed to request the scan response data. Same as
with BR/EDR where either EIR is used or a remote name request. In
non-connectable mode, the device name is not available since it is
not allowed to request scan response data. Same as in BR/EDR where
the device is non-discoverable and no name requests are answered.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 47 ++++++++++++++++++++++++++---------------------
 1 file changed, 26 insertions(+), 21 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 59bbf434ba9a..cd285d6c1ebf 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -538,7 +538,28 @@ static u8 *create_uuid128_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
 
 static u8 create_scan_rsp_data(struct hci_dev *hdev, u8 *ptr)
 {
-	return 0;
+	u8 ad_len = 0;
+	size_t name_len;
+
+	name_len = strlen(hdev->dev_name);
+	if (name_len > 0) {
+		size_t max_len = HCI_MAX_AD_LENGTH - ad_len - 2;
+
+		if (name_len > max_len) {
+			name_len = max_len;
+			ptr[1] = EIR_NAME_SHORT;
+		} else
+			ptr[1] = EIR_NAME_COMPLETE;
+
+		ptr[0] = name_len + 1;
+
+		memcpy(ptr + 2, hdev->dev_name, name_len);
+
+		ad_len += (name_len + 2);
+		ptr += (name_len + 2);
+	}
+
+	return ad_len;
 }
 
 static void update_scan_rsp_data(struct hci_request *req)
@@ -569,7 +590,6 @@ static void update_scan_rsp_data(struct hci_request *req)
 static u8 create_adv_data(struct hci_dev *hdev, u8 *ptr)
 {
 	u8 ad_len = 0, flags = 0;
-	size_t name_len;
 
 	if (test_bit(HCI_ADVERTISING, &hdev->dev_flags))
 		flags |= LE_AD_GENERAL;
@@ -603,24 +623,6 @@ static u8 create_adv_data(struct hci_dev *hdev, u8 *ptr)
 		ptr += 3;
 	}
 
-	name_len = strlen(hdev->dev_name);
-	if (name_len > 0) {
-		size_t max_len = HCI_MAX_AD_LENGTH - ad_len - 2;
-
-		if (name_len > max_len) {
-			name_len = max_len;
-			ptr[1] = EIR_NAME_SHORT;
-		} else
-			ptr[1] = EIR_NAME_COMPLETE;
-
-		ptr[0] = name_len + 1;
-
-		memcpy(ptr + 2, hdev->dev_name, name_len);
-
-		ad_len += (name_len + 2);
-		ptr += (name_len + 2);
-	}
-
 	return ad_len;
 }
 
@@ -2966,8 +2968,11 @@ static int set_local_name(struct sock *sk, struct hci_dev *hdev, void *data,
 		update_eir(&req);
 	}
 
+	/* The name is stored in the scan response data and so
+	 * no need to udpate the advertising data here.
+	 */
 	if (lmp_le_capable(hdev))
-		update_ad(&req);
+		update_scan_rsp_data(&req);
 
 	err = hci_req_run(&req, set_name_complete);
 	if (err < 0)
-- 
cgit 


From 5947f4bc4253df3a18a540af096463530c5f8737 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 16 Oct 2013 00:16:50 -0700
Subject: Bluetooth: Rename update_ad into update_adv_data

Since there is update_scan_rsp_data, it is also better to use the
clear name update_adv_data instead of update_ad.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/mgmt.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index cd285d6c1ebf..0bf823b5d90e 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -626,7 +626,7 @@ static u8 create_adv_data(struct hci_dev *hdev, u8 *ptr)
 	return ad_len;
 }
 
-static void update_ad(struct hci_request *req)
+static void update_adv_data(struct hci_request *req)
 {
 	struct hci_dev *hdev = req->hdev;
 	struct hci_cp_le_set_adv_data cp;
@@ -1746,7 +1746,7 @@ static void le_enable_complete(struct hci_dev *hdev, u8 status)
 		hci_dev_lock(hdev);
 
 		hci_req_init(&req, hdev);
-		update_ad(&req);
+		update_adv_data(&req);
 		update_scan_rsp_data(&req);
 		hci_req_run(&req, NULL);
 
@@ -3924,7 +3924,7 @@ static int set_bredr(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 		goto unlock;
 	}
 
-	/* We need to flip the bit already here so that update_ad
+	/* We need to flip the bit already here so that update_adv_data
 	 * generates the correct flags.
 	 */
 	set_bit(HCI_BREDR_ENABLED, &hdev->dev_flags);
@@ -3937,7 +3937,7 @@ static int set_bredr(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
 	/* Since only the advertising data flags will change, there
 	 * is no need to update the scan response data.
 	 */
-	update_ad(&req);
+	update_adv_data(&req);
 
 	err = hci_req_run(&req, set_bredr_complete);
 	if (err < 0)
@@ -4251,7 +4251,7 @@ static int powered_update_hci(struct hci_dev *hdev)
 		 * where BR/EDR was toggled during the AUTO_OFF phase.
 		 */
 		if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) {
-			update_ad(&req);
+			update_adv_data(&req);
 			update_scan_rsp_data(&req);
 		}
 
-- 
cgit 


From db3aebf4a13562c60761e5530f2cbf6ef9fdee2b Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 16 Oct 2013 00:16:51 -0700
Subject: Bluetooth: Remove duplicate definitions for advertising event types

The constants for advertising event types have been defined twice. So
remove one copy of it.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci.h | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index aca8944b3e30..c8bc7bfffaf5 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -1063,11 +1063,6 @@ struct hci_rp_le_read_local_features {
 
 #define HCI_OP_LE_SET_RANDOM_ADDR	0x2005
 
-#define LE_ADV_IND			0x00
-#define LE_ADV_DIRECT_IND		0x01
-#define LE_ADV_SCAN_IND			0x02
-#define LE_ADV_NONCONN_IND		0x03
-
 #define HCI_OP_LE_SET_ADV_PARAM		0x2006
 struct hci_cp_le_set_adv_param {
 	__le16   min_interval;
@@ -1580,11 +1575,11 @@ struct hci_ev_le_ltk_req {
 } __packed;
 
 /* Advertising report event types */
-#define ADV_IND		0x00
-#define ADV_DIRECT_IND	0x01
-#define ADV_SCAN_IND	0x02
-#define ADV_NONCONN_IND	0x03
-#define ADV_SCAN_RSP	0x04
+#define LE_ADV_IND		0x00
+#define LE_ADV_DIRECT_IND	0x01
+#define LE_ADV_SCAN_IND		0x02
+#define LE_ADV_NONCONN_IND	0x03
+#define LE_ADV_SCAN_RSP		0x04
 
 #define ADDR_LE_DEV_PUBLIC	0x00
 #define ADDR_LE_DEV_RANDOM	0x01
-- 
cgit 


From 472f95b93860ef8ba562c6231ab8f6ff9d352a0e Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 11 Oct 2013 19:10:00 +0200
Subject: gpio: adnp: rename "virq" to "child_irq"

This variable is confusingly named, the different Linux IRQs
aren't any more virtual than any other Linux IRQ. Give it a
non-misleading name.

Acked-by: Lars Poeschel <poeschel@lemonage.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-adnp.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-adnp.c b/drivers/gpio/gpio-adnp.c
index 6439e0e5881c..b204033acaeb 100644
--- a/drivers/gpio/gpio-adnp.c
+++ b/drivers/gpio/gpio-adnp.c
@@ -325,9 +325,9 @@ static irqreturn_t adnp_irq(int irq, void *data)
 		pending &= isr & ier;
 
 		for_each_set_bit(bit, &pending, 8) {
-			unsigned int virq;
-			virq = irq_find_mapping(adnp->domain, base + bit);
-			handle_nested_irq(virq);
+			unsigned int child_irq;
+			child_irq = irq_find_mapping(adnp->domain, base + bit);
+			handle_nested_irq(child_irq);
 		}
 	}
 
-- 
cgit 


From d933cc619e36c2288730fd8a8bdbb16a35dade07 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 11 Oct 2013 19:14:50 +0200
Subject: gpio: bcm_kona: rename confusing variables

Rename the argument "virq" to just "irq", this IRQ isn't any
more "virtual" than any other Linux IRQ number, we use "hwirq"
for the actual hw-numbers, "virq" is just bogus. Rename the
"gpio" variable to "hwirq" to reflect what it is. Rename one
instance of "virq" to "child_irq" that better describes what
it is.

Cc: Markus Mayer <markus.mayer@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-bcm-kona.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/gpio/gpio-bcm-kona.c b/drivers/gpio/gpio-bcm-kona.c
index ff5c98e8a075..58188bafba43 100644
--- a/drivers/gpio/gpio-bcm-kona.c
+++ b/drivers/gpio/gpio-bcm-kona.c
@@ -428,9 +428,10 @@ static void bcm_kona_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
 	while ((sta = readl(reg_base + GPIO_INT_STATUS(bank_id)) &
 		    (~(readl(reg_base + GPIO_INT_MASK(bank_id)))))) {
 		for_each_set_bit(bit, &sta, 32) {
-			int gpio = GPIO_PER_BANK * bank_id + bit;
-			int virq = irq_find_mapping(bank->kona_gpio->irq_domain,
-						    gpio);
+			int hwirq = GPIO_PER_BANK * bank_id + bit;
+			int child_irq =
+				irq_find_mapping(bank->kona_gpio->irq_domain,
+						 hwirq);
 			/*
 			 * Clear interrupt before handler is called so we don't
 			 * miss any interrupt occurred during executing them.
@@ -438,7 +439,7 @@ static void bcm_kona_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
 			writel(readl(reg_base + GPIO_INT_STATUS(bank_id)) |
 			       BIT(bit), reg_base + GPIO_INT_STATUS(bank_id));
 			/* Invoke interrupt handler */
-			generic_handle_irq(virq);
+			generic_handle_irq(child_irq);
 		}
 	}
 
@@ -487,10 +488,10 @@ static int bcm_kona_gpio_irq_map(struct irq_domain *d, unsigned int irq,
 	return 0;
 }
 
-static void bcm_kona_gpio_irq_unmap(struct irq_domain *d, unsigned int virq)
+static void bcm_kona_gpio_irq_unmap(struct irq_domain *d, unsigned int irq)
 {
-	irq_set_chip_and_handler(virq, NULL, NULL);
-	irq_set_chip_data(virq, NULL);
+	irq_set_chip_and_handler(irq, NULL, NULL);
+	irq_set_chip_data(irq, NULL);
 }
 
 static struct irq_domain_ops bcm_kona_irq_ops = {
-- 
cgit 


From 2d61e3e90798fdedb0a33714a30b241a5d5f2744 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 11 Oct 2013 19:21:34 +0200
Subject: gpio: em: drop references to "virtual" IRQ

Rename the argument "virq" to just "irq", this IRQ isn't any
more "virtual" than any other Linux IRQ number, we use "hwirq"
for the actual hw-numbers, "virq" is just bogus.

Cc: Magnus Damm <damm@opensource.se>
Reviewed-by: Ian Molton <ian.molton@codethink.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-em.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpio/gpio-em.c b/drivers/gpio/gpio-em.c
index 160d759170a5..ec190361bf2e 100644
--- a/drivers/gpio/gpio-em.c
+++ b/drivers/gpio/gpio-em.c
@@ -232,16 +232,16 @@ static void em_gio_free(struct gpio_chip *chip, unsigned offset)
 	em_gio_direction_input(chip, offset);
 }
 
-static int em_gio_irq_domain_map(struct irq_domain *h, unsigned int virq,
-				 irq_hw_number_t hw)
+static int em_gio_irq_domain_map(struct irq_domain *h, unsigned int irq,
+				 irq_hw_number_t hwirq)
 {
 	struct em_gio_priv *p = h->host_data;
 
-	pr_debug("gio: map hw irq = %d, virq = %d\n", (int)hw, virq);
+	pr_debug("gio: map hw irq = %d, irq = %d\n", (int)hwirq, irq);
 
-	irq_set_chip_data(virq, h->host_data);
-	irq_set_chip_and_handler(virq, &p->irq_chip, handle_level_irq);
-	set_irq_flags(virq, IRQF_VALID); /* kill me now */
+	irq_set_chip_data(irq, h->host_data);
+	irq_set_chip_and_handler(irq, &p->irq_chip, handle_level_irq);
+	set_irq_flags(irq, IRQF_VALID); /* kill me now */
 	return 0;
 }
 
-- 
cgit 


From ba519dd46c46fb923b531ef833aac074cb0114b3 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 11 Oct 2013 19:27:02 +0200
Subject: gpio: intel-mid: drop references to "virtual" IRQ

Rename the argument "virq" to just "irq", this IRQ isn't any
more "virtual" than any other Linux IRQ number, we use "hwirq"
for the actual hw-numbers, "virq" is just bogus.

Acked-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-intel-mid.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpio/gpio-intel-mid.c b/drivers/gpio/gpio-intel-mid.c
index 612b54d3a3bf..be803af658ac 100644
--- a/drivers/gpio/gpio-intel-mid.c
+++ b/drivers/gpio/gpio-intel-mid.c
@@ -353,15 +353,15 @@ static void intel_mid_irq_init_hw(struct intel_mid_gpio *priv)
 	}
 }
 
-static int intel_gpio_irq_map(struct irq_domain *d, unsigned int virq,
-			    irq_hw_number_t hw)
+static int intel_gpio_irq_map(struct irq_domain *d, unsigned int irq,
+			    irq_hw_number_t hwirq)
 {
 	struct intel_mid_gpio *priv = d->host_data;
 
-	irq_set_chip_and_handler_name(virq, &intel_mid_irqchip,
+	irq_set_chip_and_handler_name(irq, &intel_mid_irqchip,
 				      handle_simple_irq, "demux");
-	irq_set_chip_data(virq, priv);
-	irq_set_irq_type(virq, IRQ_TYPE_NONE);
+	irq_set_chip_data(irq, priv);
+	irq_set_irq_type(irq, IRQ_TYPE_NONE);
 
 	return 0;
 }
-- 
cgit 


From b551b023bdeb28fe81ab522b25e89f85c6418198 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 11 Oct 2013 19:32:16 +0200
Subject: gpio: lynxpoint: drop references to "virtual" IRQ

Rename the argument "virq" to just "irq", this IRQ isn't any
more "virtual" than any other Linux IRQ number, we use "hwirq"
for the actual hw-numbers, "virq" is just bogus. Take this
opportunity to sink a variable into a loop.

Acked-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-lynxpoint.c | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/gpio/gpio-lynxpoint.c b/drivers/gpio/gpio-lynxpoint.c
index 2d9ca6055e5e..21603e6aceaf 100644
--- a/drivers/gpio/gpio-lynxpoint.c
+++ b/drivers/gpio/gpio-lynxpoint.c
@@ -242,26 +242,27 @@ static int lp_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
 	return irq_create_mapping(lg->domain, offset);
 }
 
-static void lp_gpio_irq_handler(unsigned irq, struct irq_desc *desc)
+static void lp_gpio_irq_handler(unsigned hwirq, struct irq_desc *desc)
 {
 	struct irq_data *data = irq_desc_get_irq_data(desc);
 	struct lp_gpio *lg = irq_data_get_irq_handler_data(data);
 	struct irq_chip *chip = irq_data_get_irq_chip(data);
 	u32 base, pin, mask;
 	unsigned long reg, pending;
-	unsigned virq;
 
 	/* check from GPIO controller which pin triggered the interrupt */
 	for (base = 0; base < lg->chip.ngpio; base += 32) {
 		reg = lp_gpio_reg(&lg->chip, base, LP_INT_STAT);
 
 		while ((pending = inl(reg))) {
+			unsigned irq;
+
 			pin = __ffs(pending);
 			mask = BIT(pin);
 			/* Clear before handling so we don't lose an edge */
 			outl(mask, reg);
-			virq = irq_find_mapping(lg->domain, base + pin);
-			generic_handle_irq(virq);
+			irq = irq_find_mapping(lg->domain, base + pin);
+			generic_handle_irq(irq);
 		}
 	}
 	chip->irq_eoi(data);
@@ -324,15 +325,15 @@ static void lp_gpio_irq_init_hw(struct lp_gpio *lg)
 	}
 }
 
-static int lp_gpio_irq_map(struct irq_domain *d, unsigned int virq,
-			    irq_hw_number_t hw)
+static int lp_gpio_irq_map(struct irq_domain *d, unsigned int irq,
+			    irq_hw_number_t hwirq)
 {
 	struct lp_gpio *lg = d->host_data;
 
-	irq_set_chip_and_handler_name(virq, &lp_irqchip, handle_simple_irq,
+	irq_set_chip_and_handler_name(irq, &lp_irqchip, handle_simple_irq,
 				      "demux");
-	irq_set_chip_data(virq, lg);
-	irq_set_irq_type(virq, IRQ_TYPE_NONE);
+	irq_set_chip_data(irq, lg);
+	irq_set_irq_type(irq, IRQ_TYPE_NONE);
 
 	return 0;
 }
-- 
cgit 


From 5ba17ae9b84a04ee9aaa213a1cbb060f8e13c20c Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 11 Oct 2013 19:37:30 +0200
Subject: gpio: mpc8xxx: drop references to "virtual" IRQ
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Rename the argument "virq" to just "irq", this IRQ isn't any
more "virtual" than any other Linux IRQ number, we use "hwirq"
for the actual hw-numbers, "virq" is just bogus.

Cc: Anatolij Gustschin <agust@denx.de>
Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-mpc8xxx.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index a0b33a216d4a..b350649b9764 100644
--- a/drivers/gpio/gpio-mpc8xxx.c
+++ b/drivers/gpio/gpio-mpc8xxx.c
@@ -282,16 +282,16 @@ static struct irq_chip mpc8xxx_irq_chip = {
 	.irq_set_type	= mpc8xxx_irq_set_type,
 };
 
-static int mpc8xxx_gpio_irq_map(struct irq_domain *h, unsigned int virq,
-				irq_hw_number_t hw)
+static int mpc8xxx_gpio_irq_map(struct irq_domain *h, unsigned int irq,
+				irq_hw_number_t hwirq)
 {
 	struct mpc8xxx_gpio_chip *mpc8xxx_gc = h->host_data;
 
 	if (mpc8xxx_gc->of_dev_id_data)
 		mpc8xxx_irq_chip.irq_set_type = mpc8xxx_gc->of_dev_id_data;
 
-	irq_set_chip_data(virq, h->host_data);
-	irq_set_chip_and_handler(virq, &mpc8xxx_irq_chip, handle_level_irq);
+	irq_set_chip_data(irq, h->host_data);
+	irq_set_chip_and_handler(irq, &mpc8xxx_irq_chip, handle_level_irq);
 
 	return 0;
 }
-- 
cgit 


From f8f669f706664ef506b233157a1af67eaebf380c Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 11 Oct 2013 19:40:16 +0200
Subject: gpio: pl061: drop references to "virtual" IRQ

Rename the argument "virq" to just "irq", this IRQ isn't any
more "virtual" than any other Linux IRQ number, we use "hwirq"
for the actual hw-numbers, "virq" is just bogus.

Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Acked-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-pl061.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c
index 4274e2e70ef8..f22f7f3e2e53 100644
--- a/drivers/gpio/gpio-pl061.c
+++ b/drivers/gpio/gpio-pl061.c
@@ -238,15 +238,15 @@ static struct irq_chip pl061_irqchip = {
 	.irq_set_type	= pl061_irq_type,
 };
 
-static int pl061_irq_map(struct irq_domain *d, unsigned int virq,
-			 irq_hw_number_t hw)
+static int pl061_irq_map(struct irq_domain *d, unsigned int irq,
+			 irq_hw_number_t hwirq)
 {
 	struct pl061_gpio *chip = d->host_data;
 
-	irq_set_chip_and_handler_name(virq, &pl061_irqchip, handle_simple_irq,
+	irq_set_chip_and_handler_name(irq, &pl061_irqchip, handle_simple_irq,
 				      "pl061");
-	irq_set_chip_data(virq, chip);
-	irq_set_irq_type(virq, IRQ_TYPE_NONE);
+	irq_set_chip_data(irq, chip);
+	irq_set_irq_type(irq, IRQ_TYPE_NONE);
 
 	return 0;
 }
-- 
cgit 


From c0d6c1ad0ad8fa1b7c2148ba918fd5d64a51166a Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 11 Oct 2013 19:43:39 +0200
Subject: gpio: rcar: drop references to "virtual" IRQ

Rename the argument "virq" to just "irq", this IRQ isn't any
more "virtual" than any other Linux IRQ number, we use "hwirq"
for the actual hw-numbers, "virq" is just bogus.

Cc: Magnus Damm <damm@opensource.se>
Acked-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-rcar.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index e3745eb07570..65dbf8772085 100644
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -266,16 +266,16 @@ static int gpio_rcar_to_irq(struct gpio_chip *chip, unsigned offset)
 	return irq_create_mapping(gpio_to_priv(chip)->irq_domain, offset);
 }
 
-static int gpio_rcar_irq_domain_map(struct irq_domain *h, unsigned int virq,
-				 irq_hw_number_t hw)
+static int gpio_rcar_irq_domain_map(struct irq_domain *h, unsigned int irq,
+				 irq_hw_number_t hwirq)
 {
 	struct gpio_rcar_priv *p = h->host_data;
 
-	dev_dbg(&p->pdev->dev, "map hw irq = %d, virq = %d\n", (int)hw, virq);
+	dev_dbg(&p->pdev->dev, "map hw irq = %d, irq = %d\n", (int)hwirq, irq);
 
-	irq_set_chip_data(virq, h->host_data);
-	irq_set_chip_and_handler(virq, &p->irq_chip, handle_level_irq);
-	set_irq_flags(virq, IRQF_VALID); /* kill me now */
+	irq_set_chip_data(irq, h->host_data);
+	irq_set_chip_and_handler(irq, &p->irq_chip, handle_level_irq);
+	set_irq_flags(irq, IRQF_VALID); /* kill me now */
 	return 0;
 }
 
-- 
cgit 


From ed05e204af5a2a7814858407bfd698d51e31f938 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 11 Oct 2013 19:51:38 +0200
Subject: gpio: stmpe: drop references to "virtual" IRQ, fix bug

Rename the argument "virq" to just "irq", this IRQ isn't any
more "virtual" than any other Linux IRQ number, we use "hwirq"
for the actual hw-numbers, "virq" is just bogus.

When doing this I see that the hwirq argument is used
for mapping rather than the Linux IRQ in the map function.
This doesn't look right. Use the Linux IRQ instead.

I cannot test this patch so I don't know if the mapping change
is correct, however since absolutely every other driver does
it the other way around this doesn't look sound at all. Please
help out with review.

Cc: Vipul Kumar Samar <vipulkumar.samar@st.com>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Gabriel Fernandez <gabriel.fernandez@st.com>
Cc: Jean-Nicolas Graux <jean-nicolas.graux@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-stmpe.c | 25 +++++++++++++------------
 1 file changed, 13 insertions(+), 12 deletions(-)

diff --git a/drivers/gpio/gpio-stmpe.c b/drivers/gpio/gpio-stmpe.c
index b33bad1bb4df..2647e243d471 100644
--- a/drivers/gpio/gpio-stmpe.c
+++ b/drivers/gpio/gpio-stmpe.c
@@ -254,9 +254,10 @@ static irqreturn_t stmpe_gpio_irq(int irq, void *dev)
 		while (stat) {
 			int bit = __ffs(stat);
 			int line = bank * 8 + bit;
-			int virq = irq_find_mapping(stmpe_gpio->domain, line);
+			int child_irq = irq_find_mapping(stmpe_gpio->domain,
+							 line);
 
-			handle_nested_irq(virq);
+			handle_nested_irq(child_irq);
 			stat &= ~(1 << bit);
 		}
 
@@ -271,7 +272,7 @@ static irqreturn_t stmpe_gpio_irq(int irq, void *dev)
 	return IRQ_HANDLED;
 }
 
-static int stmpe_gpio_irq_map(struct irq_domain *d, unsigned int virq,
+static int stmpe_gpio_irq_map(struct irq_domain *d, unsigned int irq,
 			      irq_hw_number_t hwirq)
 {
 	struct stmpe_gpio *stmpe_gpio = d->host_data;
@@ -279,26 +280,26 @@ static int stmpe_gpio_irq_map(struct irq_domain *d, unsigned int virq,
 	if (!stmpe_gpio)
 		return -EINVAL;
 
-	irq_set_chip_data(hwirq, stmpe_gpio);
-	irq_set_chip_and_handler(hwirq, &stmpe_gpio_irq_chip,
+	irq_set_chip_data(irq, stmpe_gpio);
+	irq_set_chip_and_handler(irq, &stmpe_gpio_irq_chip,
 				 handle_simple_irq);
-	irq_set_nested_thread(hwirq, 1);
+	irq_set_nested_thread(irq, 1);
 #ifdef CONFIG_ARM
-	set_irq_flags(hwirq, IRQF_VALID);
+	set_irq_flags(irq, IRQF_VALID);
 #else
-	irq_set_noprobe(hwirq);
+	irq_set_noprobe(irq);
 #endif
 
 	return 0;
 }
 
-static void stmpe_gpio_irq_unmap(struct irq_domain *d, unsigned int virq)
+static void stmpe_gpio_irq_unmap(struct irq_domain *d, unsigned int irq)
 {
 #ifdef CONFIG_ARM
-	set_irq_flags(virq, 0);
+	set_irq_flags(irq, 0);
 #endif
-	irq_set_chip_and_handler(virq, NULL, NULL);
-	irq_set_chip_data(virq, NULL);
+	irq_set_chip_and_handler(irq, NULL, NULL);
+	irq_set_chip_data(irq, NULL);
 }
 
 static const struct irq_domain_ops stmpe_gpio_irq_simple_ops = {
-- 
cgit 


From d27e06ac5dcf60d5502269e1875bcb0f05f1b1c1 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Mon, 14 Oct 2013 10:07:08 +0200
Subject: gpio: ep93xx: get rid of bogus __raw* accessors

I have no idea why this driver is using __raw* accessors for
reading and writing registers, I suspect it is just force of
habit or copy/paste. Change all to readb()/writeb() except
one chain where I used writeb_relaxed() up until the last
writeb().

Cc: Ryan Mallon <rmallon@gmail.com>
Cc: H Hartley Sweeten <hartleys@visionengravers.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-ep93xx.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/gpio/gpio-ep93xx.c b/drivers/gpio/gpio-ep93xx.c
index 56b98eebe1fc..80829f3c6543 100644
--- a/drivers/gpio/gpio-ep93xx.c
+++ b/drivers/gpio/gpio-ep93xx.c
@@ -51,15 +51,15 @@ static void ep93xx_gpio_update_int_params(unsigned port)
 {
 	BUG_ON(port > 2);
 
-	__raw_writeb(0, EP93XX_GPIO_REG(int_en_register_offset[port]));
+	writeb_relaxed(0, EP93XX_GPIO_REG(int_en_register_offset[port]));
 
-	__raw_writeb(gpio_int_type2[port],
+	writeb_relaxed(gpio_int_type2[port],
 		EP93XX_GPIO_REG(int_type2_register_offset[port]));
 
-	__raw_writeb(gpio_int_type1[port],
+	writeb_relaxed(gpio_int_type1[port],
 		EP93XX_GPIO_REG(int_type1_register_offset[port]));
 
-	__raw_writeb(gpio_int_unmasked[port] & gpio_int_enabled[port],
+	writeb(gpio_int_unmasked[port] & gpio_int_enabled[port],
 		EP93XX_GPIO_REG(int_en_register_offset[port]));
 }
 
@@ -74,7 +74,7 @@ static void ep93xx_gpio_int_debounce(unsigned int irq, bool enable)
 	else
 		gpio_int_debounce[port] &= ~port_mask;
 
-	__raw_writeb(gpio_int_debounce[port],
+	writeb(gpio_int_debounce[port],
 		EP93XX_GPIO_REG(int_debounce_register_offset[port]));
 }
 
@@ -83,7 +83,7 @@ static void ep93xx_gpio_ab_irq_handler(unsigned int irq, struct irq_desc *desc)
 	unsigned char status;
 	int i;
 
-	status = __raw_readb(EP93XX_GPIO_A_INT_STATUS);
+	status = readb(EP93XX_GPIO_A_INT_STATUS);
 	for (i = 0; i < 8; i++) {
 		if (status & (1 << i)) {
 			int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_A(0)) + i;
@@ -91,7 +91,7 @@ static void ep93xx_gpio_ab_irq_handler(unsigned int irq, struct irq_desc *desc)
 		}
 	}
 
-	status = __raw_readb(EP93XX_GPIO_B_INT_STATUS);
+	status = readb(EP93XX_GPIO_B_INT_STATUS);
 	for (i = 0; i < 8; i++) {
 		if (status & (1 << i)) {
 			int gpio_irq = gpio_to_irq(EP93XX_GPIO_LINE_B(0)) + i;
@@ -124,7 +124,7 @@ static void ep93xx_gpio_irq_ack(struct irq_data *d)
 		ep93xx_gpio_update_int_params(port);
 	}
 
-	__raw_writeb(port_mask, EP93XX_GPIO_REG(eoi_register_offset[port]));
+	writeb(port_mask, EP93XX_GPIO_REG(eoi_register_offset[port]));
 }
 
 static void ep93xx_gpio_irq_mask_ack(struct irq_data *d)
@@ -139,7 +139,7 @@ static void ep93xx_gpio_irq_mask_ack(struct irq_data *d)
 	gpio_int_unmasked[port] &= ~port_mask;
 	ep93xx_gpio_update_int_params(port);
 
-	__raw_writeb(port_mask, EP93XX_GPIO_REG(eoi_register_offset[port]));
+	writeb(port_mask, EP93XX_GPIO_REG(eoi_register_offset[port]));
 }
 
 static void ep93xx_gpio_irq_mask(struct irq_data *d)
-- 
cgit 


From d468bf9ecaabd3bf3a6134e5a369ced82b1d1ca1 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 24 Sep 2013 11:54:38 +0200
Subject: gpio: add API to be strict about GPIO IRQ usage

It is currently often possible in many GPIO drivers to request
a GPIO line to be used as IRQ after calling gpio_to_irq() and,
as the gpiolib is not aware of this, set the same line to
output and start driving it, with undesired side effects.

As it is a bogus usage scenario to request a line flagged as
output to used as IRQ, we introduce APIs to let gpiolib track
the use of a line as IRQ, and also set this flag from the
userspace ABI.

The API is symmetric so that lines can also be flagged from
.irq_enable() and unflagged from IRQ by .irq_disable().
The debugfs file is altered so that we see if a line is
reserved for IRQ.

Cc: Enric Balletbo i Serra <eballetbo@gmail.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Alexandre Courbot <acourbot@nvidia.com>
Reviewed-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpiolib.c     | 88 ++++++++++++++++++++++++++++++++++++++++++++--
 include/asm-generic/gpio.h |  3 ++
 include/linux/gpio.h       | 12 +++++++
 3 files changed, 101 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 4fc28603a742..1014cb5e10b0 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -60,6 +60,7 @@ struct gpio_desc {
 #define FLAG_ACTIVE_LOW	6	/* sysfs value has active low */
 #define FLAG_OPEN_DRAIN	7	/* Gpio is open drain type */
 #define FLAG_OPEN_SOURCE 8	/* Gpio is open source type */
+#define FLAG_USED_AS_IRQ 9	/* GPIO is connected to an IRQ */
 
 #define ID_SHIFT	16	/* add new flags before this one */
 
@@ -96,6 +97,8 @@ static int gpiod_get_value(const struct gpio_desc *desc);
 static void gpiod_set_value(struct gpio_desc *desc, int value);
 static int gpiod_cansleep(const struct gpio_desc *desc);
 static int gpiod_to_irq(const struct gpio_desc *desc);
+static int gpiod_lock_as_irq(struct gpio_desc *desc);
+static void gpiod_unlock_as_irq(struct gpio_desc *desc);
 static int gpiod_export(struct gpio_desc *desc, bool direction_may_change);
 static int gpiod_export_link(struct device *dev, const char *name,
 			     struct gpio_desc *desc);
@@ -162,6 +165,17 @@ static struct gpio_desc *gpio_to_desc(unsigned gpio)
 		return &gpio_desc[gpio];
 }
 
+/**
+ * Convert an offset on a certain chip to a corresponding descriptor
+ */
+static struct gpio_desc *gpiochip_offset_to_desc(struct gpio_chip *chip,
+						 unsigned int offset)
+{
+	unsigned int gpio = chip->base + offset;
+
+	return gpio_to_desc(gpio);
+}
+
 /**
  * Convert a GPIO descriptor to the integer namespace.
  * This should disappear in the future but is needed since we still
@@ -428,6 +442,7 @@ static int gpio_setup_irq(struct gpio_desc *desc, struct device *dev,
 	desc->flags &= ~GPIO_TRIGGER_MASK;
 
 	if (!gpio_flags) {
+		gpiod_unlock_as_irq(desc);
 		ret = 0;
 		goto free_id;
 	}
@@ -466,6 +481,12 @@ static int gpio_setup_irq(struct gpio_desc *desc, struct device *dev,
 	if (ret < 0)
 		goto free_id;
 
+	ret = gpiod_lock_as_irq(desc);
+	if (ret < 0) {
+		gpiod_warn(desc, "failed to flag the GPIO for IRQ\n");
+		goto free_id;
+	}
+
 	desc->flags |= gpio_flags;
 	return 0;
 
@@ -1730,6 +1751,14 @@ static int gpiod_direction_output(struct gpio_desc *desc, int value)
 		return -EINVAL;
 	}
 
+	/* GPIOs used for IRQs shall not be set as output */
+	if (test_bit(FLAG_USED_AS_IRQ, &desc->flags)) {
+		gpiod_err(desc,
+			  "%s: tried to set a GPIO tied to an IRQ as output\n",
+			  __func__);
+		return -EIO;
+	}
+
 	/* Open drain pin should not be driven to 1 */
 	if (value && test_bit(FLAG_OPEN_DRAIN,  &desc->flags))
 		return gpiod_direction_input(desc);
@@ -2050,6 +2079,58 @@ int __gpio_to_irq(unsigned gpio)
 }
 EXPORT_SYMBOL_GPL(__gpio_to_irq);
 
+/**
+ * gpiod_lock_as_irq() - lock a GPIO to be used as IRQ
+ * @gpio: the GPIO line to lock as used for IRQ
+ *
+ * This is used directly by GPIO drivers that want to lock down
+ * a certain GPIO line to be used as IRQs, for example in the
+ * .to_irq() callback of their gpio_chip, or in the .irq_enable()
+ * of its irq_chip implementation if the GPIO is known from that
+ * code.
+ */
+static int gpiod_lock_as_irq(struct gpio_desc *desc)
+{
+	if (!desc)
+		return -EINVAL;
+
+	if (test_bit(FLAG_IS_OUT, &desc->flags)) {
+		gpiod_err(desc,
+			  "%s: tried to flag a GPIO set as output for IRQ\n",
+			  __func__);
+		return -EIO;
+	}
+
+	set_bit(FLAG_USED_AS_IRQ, &desc->flags);
+	return 0;
+}
+
+int gpio_lock_as_irq(struct gpio_chip *chip, unsigned int offset)
+{
+	return gpiod_lock_as_irq(gpiochip_offset_to_desc(chip, offset));
+}
+EXPORT_SYMBOL_GPL(gpio_lock_as_irq);
+
+/**
+ * gpiod_unlock_as_irq() - unlock a GPIO used as IRQ
+ * @gpio: the GPIO line to unlock from IRQ usage
+ *
+ * This is used directly by GPIO drivers that want to indicate
+ * that a certain GPIO is no longer used exclusively for IRQ.
+ */
+static void gpiod_unlock_as_irq(struct gpio_desc *desc)
+{
+	if (!desc)
+		return;
+
+	clear_bit(FLAG_USED_AS_IRQ, &desc->flags);
+}
+
+void gpio_unlock_as_irq(struct gpio_chip *chip, unsigned int offset)
+{
+	return gpiod_unlock_as_irq(gpiochip_offset_to_desc(chip, offset));
+}
+EXPORT_SYMBOL_GPL(gpio_unlock_as_irq);
 
 /* There's no value in making it easy to inline GPIO calls that may sleep.
  * Common examples include ones connected to I2C or SPI chips.
@@ -2091,6 +2172,7 @@ static void gpiolib_dbg_show(struct seq_file *s, struct gpio_chip *chip)
 	unsigned		gpio = chip->base;
 	struct gpio_desc	*gdesc = &chip->desc[0];
 	int			is_out;
+	int			is_irq;
 
 	for (i = 0; i < chip->ngpio; i++, gpio++, gdesc++) {
 		if (!test_bit(FLAG_REQUESTED, &gdesc->flags))
@@ -2098,12 +2180,14 @@ static void gpiolib_dbg_show(struct seq_file *s, struct gpio_chip *chip)
 
 		gpiod_get_direction(gdesc);
 		is_out = test_bit(FLAG_IS_OUT, &gdesc->flags);
-		seq_printf(s, " gpio-%-3d (%-20.20s) %s %s",
+		is_irq = test_bit(FLAG_USED_AS_IRQ, &gdesc->flags);
+		seq_printf(s, " gpio-%-3d (%-20.20s) %s %s %s",
 			gpio, gdesc->label,
 			is_out ? "out" : "in ",
 			chip->get
 				? (chip->get(chip, i) ? "hi" : "lo")
-				: "?  ");
+				: "?  ",
+			is_irq ? "IRQ" : "   ");
 		seq_printf(s, "\n");
 	}
 }
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index bde646995d10..b309a5c0019e 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -192,6 +192,9 @@ extern int __gpio_cansleep(unsigned gpio);
 
 extern int __gpio_to_irq(unsigned gpio);
 
+extern int gpio_lock_as_irq(struct gpio_chip *chip, unsigned int offset);
+extern void gpio_unlock_as_irq(struct gpio_chip *chip, unsigned int offset);
+
 extern int gpio_request_one(unsigned gpio, unsigned long flags, const char *label);
 extern int gpio_request_array(const struct gpio *array, size_t num);
 extern void gpio_free_array(const struct gpio *array, size_t num);
diff --git a/include/linux/gpio.h b/include/linux/gpio.h
index 552e3f46e4a3..a06ec3e85ba3 100644
--- a/include/linux/gpio.h
+++ b/include/linux/gpio.h
@@ -204,6 +204,18 @@ static inline int gpio_to_irq(unsigned gpio)
 	return -EINVAL;
 }
 
+static inline int gpio_lock_as_irq(struct gpio_chip *chip, unsigned int offset)
+{
+	WARN_ON(1);
+	return -EINVAL;
+}
+
+static inline void gpio_unlock_as_irq(struct gpio_chip *chip,
+				      unsigned int offset)
+{
+	WARN_ON(1);
+}
+
 static inline int irq_to_gpio(unsigned irq)
 {
 	/* irq can never have been returned from gpio_to_irq() */
-- 
cgit 


From 494336f3a6eabeede8ce07b73f5023ff4f7c745d Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 11 Oct 2013 11:30:25 +0200
Subject: pinctrl: nomadik: mark GPIO lines used for IRQ

When an IRQ is started on a GPIO line, mark this GPIO as IRQ in
the gpiolib so we can keep track of the usage centrally.

Cc: Enric Balletbo i Serra <eballetbo@gmail.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-nomadik.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c
index d7c3ae300fa7..7111c3b59130 100644
--- a/drivers/pinctrl/pinctrl-nomadik.c
+++ b/drivers/pinctrl/pinctrl-nomadik.c
@@ -634,6 +634,10 @@ static unsigned int nmk_gpio_irq_startup(struct irq_data *d)
 {
 	struct nmk_gpio_chip *nmk_chip = irq_data_get_irq_chip_data(d);
 
+	if (gpio_lock_as_irq(&nmk_chip->chip, d->hwirq))
+		dev_err(nmk_chip->chip.dev,
+			"unable to lock HW IRQ %lu for IRQ\n",
+			d->hwirq);
 	clk_enable(nmk_chip->clk);
 	nmk_gpio_irq_unmask(d);
 	return 0;
@@ -645,6 +649,7 @@ static void nmk_gpio_irq_shutdown(struct irq_data *d)
 
 	nmk_gpio_irq_mask(d);
 	clk_disable(nmk_chip->clk);
+	gpio_unlock_as_irq(&nmk_chip->chip, d->hwirq);
 }
 
 static struct irq_chip nmk_gpio_irq_chip = {
-- 
cgit 


From 873ee9ed2c020b59e22a5082f73fc2960ec959bf Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Mon, 14 Oct 2013 10:25:59 +0200
Subject: pinctrl: coh901: mark GPIO lines used for IRQ

When an IRQ is started on a GPIO line, mark this GPIO as IRQ in
the gpiolib so we can keep track of the usage centrally.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-coh901.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/pinctrl/pinctrl-coh901.c b/drivers/pinctrl/pinctrl-coh901.c
index f22a2193d949..162ac0d73739 100644
--- a/drivers/pinctrl/pinctrl-coh901.c
+++ b/drivers/pinctrl/pinctrl-coh901.c
@@ -529,6 +529,10 @@ static void u300_gpio_irq_enable(struct irq_data *d)
 
 	dev_dbg(gpio->dev, "enable IRQ for hwirq %lu on port %s, offset %d\n",
 		 d->hwirq, port->name, offset);
+	if (gpio_lock_as_irq(&gpio->chip, d->hwirq))
+		dev_err(gpio->dev,
+			"unable to lock HW IRQ %lu for IRQ\n",
+			d->hwirq);
 	local_irq_save(flags);
 	val = readl(U300_PIN_REG(offset, ien));
 	writel(val | U300_PIN_BIT(offset), U300_PIN_REG(offset, ien));
@@ -547,6 +551,7 @@ static void u300_gpio_irq_disable(struct irq_data *d)
 	val = readl(U300_PIN_REG(offset, ien));
 	writel(val & ~U300_PIN_BIT(offset), U300_PIN_REG(offset, ien));
 	local_irq_restore(flags);
+	gpio_unlock_as_irq(&gpio->chip, d->hwirq);
 }
 
 static struct irq_chip u300_gpio_irqchip = {
-- 
cgit 


From 2f56e0a57ff1bbf973bec86e527f222de8c4b4f9 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Wed, 16 Oct 2013 02:47:30 +0200
Subject: gpio/omap: use gpiolib API to mark a GPIO used as an IRQ

The OMAP GPIO driver keeps track about GPIO pins that are
used as IRQ lines for two reasons:

1) To prevent GPIO banks to be disabled while one of their
   GPIO pins are only used as an interrupt line.

2) To not allow another caller to set the GPIO pin as output.

Now gpiolib has an API to mark GPIO pins as used as IRQ lines
so the GPIO core only allows to set as output GPIO pins not
tied to an IRQ. So there is no need to have custom code for 2).

The IRQ usage still has to be maintained locally for 1) though.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-omap.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index 89675f862308..f319c9ffd4a8 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -514,6 +514,14 @@ static int gpio_irq_type(struct irq_data *d, unsigned type)
 		return -EINVAL;
 	}
 
+	retval = gpio_lock_as_irq(&bank->chip, offset);
+	if (retval) {
+		dev_err(bank->dev, "unable to lock offset %d for IRQ\n",
+			offset);
+		spin_unlock_irqrestore(&bank->lock, flags);
+		return retval;
+	}
+
 	bank->irq_usage |= 1 << GPIO_INDEX(bank, gpio);
 	spin_unlock_irqrestore(&bank->lock, flags);
 
@@ -797,6 +805,7 @@ static void gpio_irq_shutdown(struct irq_data *d)
 	unsigned offset = GPIO_INDEX(bank, gpio);
 
 	spin_lock_irqsave(&bank->lock, flags);
+	gpio_unlock_as_irq(&bank->chip, offset);
 	bank->irq_usage &= ~(1 << offset);
 	_disable_gpio_module(bank, offset);
 	_reset_gpio(bank, gpio);
@@ -957,22 +966,13 @@ static int gpio_output(struct gpio_chip *chip, unsigned offset, int value)
 {
 	struct gpio_bank *bank;
 	unsigned long flags;
-	int retval = 0;
 
 	bank = container_of(chip, struct gpio_bank, chip);
 	spin_lock_irqsave(&bank->lock, flags);
-
-	if (LINE_USED(bank->irq_usage, offset)) {
-			retval = -EINVAL;
-			goto exit;
-	}
-
 	bank->set_dataout(bank, offset, value);
 	_set_gpio_direction(bank, offset, 0);
-
-exit:
 	spin_unlock_irqrestore(&bank->lock, flags);
-	return retval;
+	return 0;
 }
 
 static int gpio_debounce(struct gpio_chip *chip, unsigned offset,
-- 
cgit 


From 662d652dd60edbb45acab772baedaf39a2f22ffc Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 16 Oct 2013 11:20:47 +0300
Subject: Bluetooth: Fix L2CAP "Command Reject: Invalid CID" response

When the reason code in the L2CAP command reject is "invalid CID" there
should be four additional bytes of data in the PDU, namely the source
and destination CIDs (which should be zero if one or both are not
applicable). This patch fixes all occurrences of such errors to return
the right kind of PDU.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/l2cap_core.c | 37 +++++++++++++++++++++++--------------
 1 file changed, 23 insertions(+), 14 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 72ce21a822f7..157833051a06 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -3971,6 +3971,18 @@ static void l2cap_send_efs_conf_rsp(struct l2cap_chan *chan, void *data,
 					    L2CAP_CONF_SUCCESS, flags), data);
 }
 
+static void cmd_reject_invalid_cid(struct l2cap_conn *conn, u8 ident,
+				   u16 scid, u16 dcid)
+{
+	struct l2cap_cmd_rej_cid rej;
+
+	rej.reason = __constant_cpu_to_le16(L2CAP_REJ_INVALID_CID);
+	rej.scid = __cpu_to_le16(scid);
+	rej.dcid = __cpu_to_le16(dcid);
+
+	l2cap_send_cmd(conn, ident, L2CAP_COMMAND_REJ, sizeof(rej), &rej);
+}
+
 static inline int l2cap_config_req(struct l2cap_conn *conn,
 				   struct l2cap_cmd_hdr *cmd, u16 cmd_len,
 				   u8 *data)
@@ -3990,18 +4002,14 @@ static inline int l2cap_config_req(struct l2cap_conn *conn,
 	BT_DBG("dcid 0x%4.4x flags 0x%2.2x", dcid, flags);
 
 	chan = l2cap_get_chan_by_scid(conn, dcid);
-	if (!chan)
-		return -EBADSLT;
+	if (!chan) {
+		cmd_reject_invalid_cid(conn, cmd->ident, dcid, 0);
+		return 0;
+	}
 
 	if (chan->state != BT_CONFIG && chan->state != BT_CONNECT2) {
-		struct l2cap_cmd_rej_cid rej;
-
-		rej.reason = __constant_cpu_to_le16(L2CAP_REJ_INVALID_CID);
-		rej.scid = cpu_to_le16(chan->scid);
-		rej.dcid = cpu_to_le16(chan->dcid);
-
-		l2cap_send_cmd(conn, cmd->ident, L2CAP_COMMAND_REJ,
-			       sizeof(rej), &rej);
+		cmd_reject_invalid_cid(conn, cmd->ident, chan->scid,
+				       chan->dcid);
 		goto unlock;
 	}
 
@@ -4218,7 +4226,8 @@ static inline int l2cap_disconnect_req(struct l2cap_conn *conn,
 	chan = __l2cap_get_chan_by_scid(conn, dcid);
 	if (!chan) {
 		mutex_unlock(&conn->chan_lock);
-		return -EBADSLT;
+		cmd_reject_invalid_cid(conn, cmd->ident, dcid, scid);
+		return 0;
 	}
 
 	l2cap_chan_lock(chan);
@@ -4447,7 +4456,9 @@ static int l2cap_create_channel_req(struct l2cap_conn *conn,
 						  &conn->hcon->dst);
 		if (!hs_hcon) {
 			hci_dev_put(hdev);
-			return -EBADSLT;
+			cmd_reject_invalid_cid(conn, cmd->ident, chan->scid,
+					       chan->dcid);
+			return 0;
 		}
 
 		BT_DBG("mgr %p bredr_chan %p hs_hcon %p", mgr, chan, hs_hcon);
@@ -5306,8 +5317,6 @@ static inline int l2cap_le_sig_cmd(struct l2cap_conn *conn,
 static __le16 l2cap_err_to_reason(int err)
 {
 	switch (err) {
-	case -EBADSLT:
-		return __constant_cpu_to_le16(L2CAP_REJ_INVALID_CID);
 	case -EMSGSIZE:
 		return __constant_cpu_to_le16(L2CAP_REJ_MTU_EXCEEDED);
 	case -EINVAL:
-- 
cgit 


From 33a2145e6179afcbc1d71fee25848ad92a244f6c Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 16 Oct 2013 11:20:48 +0300
Subject: Bluetooth: Remove unused command reject mapping for EMSGSIZE

There is no command handler that would return an EMSGSIZE error, so just
remove this mapping from the l2cap_err_to_reason function.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/l2cap_core.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 157833051a06..644af94ebb0a 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -5317,8 +5317,6 @@ static inline int l2cap_le_sig_cmd(struct l2cap_conn *conn,
 static __le16 l2cap_err_to_reason(int err)
 {
 	switch (err) {
-	case -EMSGSIZE:
-		return __constant_cpu_to_le16(L2CAP_REJ_MTU_EXCEEDED);
 	case -EINVAL:
 	case -EPROTO:
 	default:
-- 
cgit 


From a521149a0df24cc250aa1173a9964dd8a728d772 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 16 Oct 2013 11:20:49 +0300
Subject: Bluetooth: Remove useless l2cap_err_to_reason function

Now that the only reason code this function can return is
L2CAP_REJ_NOT_UNDERSTOOD we can just do the necessary assignment without
needing a separate function at all.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/l2cap_core.c | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 644af94ebb0a..8af34d2fdbef 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -5314,16 +5314,6 @@ static inline int l2cap_le_sig_cmd(struct l2cap_conn *conn,
 	}
 }
 
-static __le16 l2cap_err_to_reason(int err)
-{
-	switch (err) {
-	case -EINVAL:
-	case -EPROTO:
-	default:
-		return __constant_cpu_to_le16(L2CAP_REJ_NOT_UNDERSTOOD);
-	}
-}
-
 static inline void l2cap_le_sig_channel(struct l2cap_conn *conn,
 					struct sk_buff *skb)
 {
@@ -5356,7 +5346,7 @@ static inline void l2cap_le_sig_channel(struct l2cap_conn *conn,
 
 		BT_ERR("Wrong link type (%d)", err);
 
-		rej.reason = l2cap_err_to_reason(err);
+		rej.reason = __constant_cpu_to_le16(L2CAP_REJ_NOT_UNDERSTOOD);
 		l2cap_send_cmd(conn, cmd->ident, L2CAP_COMMAND_REJ,
 			       sizeof(rej), &rej);
 	}
@@ -5401,7 +5391,7 @@ static inline void l2cap_sig_channel(struct l2cap_conn *conn,
 
 			BT_ERR("Wrong link type (%d)", err);
 
-			rej.reason = l2cap_err_to_reason(err);
+			rej.reason = __constant_cpu_to_le16(L2CAP_REJ_NOT_UNDERSTOOD);
 			l2cap_send_cmd(conn, cmd.ident, L2CAP_COMMAND_REJ,
 				       sizeof(rej), &rej);
 		}
-- 
cgit 


From 07e307f807fecf056f0f9024ade4c0187159c46b Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 16 Oct 2013 11:37:00 +0300
Subject: Bluetooth: Ignore A2MP data on non-BR/EDR links

The A2MP CID is only valid for BR/EDR transports. We should ignore A2MP
data on non-BR/EDR links and refuse to create an amp_mgr object.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/a2mp.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index fe32a334a52d..efcd108822c4 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -836,6 +836,9 @@ struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,
 {
 	struct amp_mgr *mgr;
 
+	if (conn->hcon->type != ACL_LINK)
+		return NULL;
+
 	mgr = amp_mgr_create(conn, false);
 	if (!mgr) {
 		BT_ERR("Could not create AMP manager");
-- 
cgit 


From 3432711f49c31c8f21f8a9beb0b3d4b2c7bc9dc2 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 16 Oct 2013 11:37:01 +0300
Subject: Bluetooth: Ignore SMP data on non-LE links

The SMP CID is only defined for LE transports. Instead of returning an
error from smp_sig_channel() in this case (which would cause a
disconnection) just return 0 to ignore the data, which is consistent
with the behavior for other unknown CIDs.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/smp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index 463e50c58716..fc200e06aa04 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -856,7 +856,7 @@ int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb)
 
 	if (hcon->type != LE_LINK) {
 		kfree_skb(skb);
-		return -ENOTSUPP;
+		return 0;
 	}
 
 	if (skb->len < 1) {
-- 
cgit 


From ebc9abddfb6b930ec54087997570967f062eba4c Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Tue, 15 Oct 2013 09:26:20 +0200
Subject: ath10k: do not warn about unsupported vdev param

10.X firmware does not support WMI_VDEV_PARAM_TX_ENCAP_TYPE.
It's a known limitation and we should not warn about this.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c | 3 ++-
 drivers/net/wireless/ath/ath10k/wmi.c | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 049eca2eb0c9..97d7111be721 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2085,7 +2085,8 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 	vdev_param = ar->wmi.vdev_param->tx_encap_type;
 	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
 					ATH10K_HW_TXRX_NATIVE_WIFI);
-	if (ret)
+	/* 10.X firmware does not support this VDEV parameter. Do not warn */
+	if (ret && ret != -EOPNOTSUPP)
 		ath10k_warn("Failed to set TX encap: %d\n", ret);
 
 	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index f9766faf15cf..fa0738803899 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -2763,7 +2763,7 @@ int ath10k_wmi_vdev_set_param(struct ath10k *ar, u32 vdev_id,
 		ath10k_dbg(ATH10K_DBG_WMI,
 			   "vdev param %d not supported by firmware\n",
 			    param_id);
-		return -EINVAL;
+		return -EOPNOTSUPP;
 	}
 
 	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
-- 
cgit 


From 34957b25e39bbdcfd902f27ae719b8ff50c751f8 Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Tue, 15 Oct 2013 09:55:31 +0200
Subject: ath10k: rename WMI_CMD_UNDEFINED

Rename WMI_CMD_UNDEFINED to WMI_CMD_UNSUPPORTED. This is more
accurate here. Also return -EOPNOTSUPP instead of -EINVAL in
wmi_cmd_send().

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/wmi.c | 46 +++++++++++++++++------------------
 drivers/net/wireless/ath/ath10k/wmi.h |  2 +-
 2 files changed, 24 insertions(+), 24 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index fa0738803899..9d4752655e54 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -149,7 +149,7 @@ static struct wmi_cmd_map wmi_10x_cmd_map = {
 	.start_scan_cmdid = WMI_10X_START_SCAN_CMDID,
 	.stop_scan_cmdid = WMI_10X_STOP_SCAN_CMDID,
 	.scan_chan_list_cmdid = WMI_10X_SCAN_CHAN_LIST_CMDID,
-	.scan_sch_prio_tbl_cmdid = WMI_CMD_UNDEFINED,
+	.scan_sch_prio_tbl_cmdid = WMI_CMD_UNSUPPORTED,
 	.pdev_set_regdomain_cmdid = WMI_10X_PDEV_SET_REGDOMAIN_CMDID,
 	.pdev_set_channel_cmdid = WMI_10X_PDEV_SET_CHANNEL_CMDID,
 	.pdev_set_param_cmdid = WMI_10X_PDEV_SET_PARAM_CMDID,
@@ -182,11 +182,11 @@ static struct wmi_cmd_map wmi_10x_cmd_map = {
 	.peer_mcast_group_cmdid = WMI_10X_PEER_MCAST_GROUP_CMDID,
 	.bcn_tx_cmdid = WMI_10X_BCN_TX_CMDID,
 	.pdev_send_bcn_cmdid = WMI_10X_PDEV_SEND_BCN_CMDID,
-	.bcn_tmpl_cmdid = WMI_CMD_UNDEFINED,
+	.bcn_tmpl_cmdid = WMI_CMD_UNSUPPORTED,
 	.bcn_filter_rx_cmdid = WMI_10X_BCN_FILTER_RX_CMDID,
 	.prb_req_filter_rx_cmdid = WMI_10X_PRB_REQ_FILTER_RX_CMDID,
 	.mgmt_tx_cmdid = WMI_10X_MGMT_TX_CMDID,
-	.prb_tmpl_cmdid = WMI_CMD_UNDEFINED,
+	.prb_tmpl_cmdid = WMI_CMD_UNSUPPORTED,
 	.addba_clear_resp_cmdid = WMI_10X_ADDBA_CLEAR_RESP_CMDID,
 	.addba_send_cmdid = WMI_10X_ADDBA_SEND_CMDID,
 	.addba_status_cmdid = WMI_10X_ADDBA_STATUS_CMDID,
@@ -211,9 +211,9 @@ static struct wmi_cmd_map wmi_10x_cmd_map = {
 	.p2p_dev_set_discoverability = WMI_10X_P2P_DEV_SET_DISCOVERABILITY,
 	.p2p_go_set_beacon_ie = WMI_10X_P2P_GO_SET_BEACON_IE,
 	.p2p_go_set_probe_resp_ie = WMI_10X_P2P_GO_SET_PROBE_RESP_IE,
-	.p2p_set_vendor_ie_data_cmdid = WMI_CMD_UNDEFINED,
-	.ap_ps_peer_param_cmdid = WMI_CMD_UNDEFINED,
-	.ap_ps_peer_uapsd_coex_cmdid = WMI_CMD_UNDEFINED,
+	.p2p_set_vendor_ie_data_cmdid = WMI_CMD_UNSUPPORTED,
+	.ap_ps_peer_param_cmdid = WMI_CMD_UNSUPPORTED,
+	.ap_ps_peer_uapsd_coex_cmdid = WMI_CMD_UNSUPPORTED,
 	.peer_rate_retry_sched_cmdid = WMI_10X_PEER_RATE_RETRY_SCHED_CMDID,
 	.wlan_profile_trigger_cmdid = WMI_10X_WLAN_PROFILE_TRIGGER_CMDID,
 	.wlan_profile_set_hist_intvl_cmdid =
@@ -242,25 +242,25 @@ static struct wmi_cmd_map wmi_10x_cmd_map = {
 	.vdev_spectral_scan_enable_cmdid =
 				WMI_10X_VDEV_SPECTRAL_SCAN_ENABLE_CMDID,
 	.request_stats_cmdid = WMI_10X_REQUEST_STATS_CMDID,
-	.set_arp_ns_offload_cmdid = WMI_CMD_UNDEFINED,
-	.network_list_offload_config_cmdid = WMI_CMD_UNDEFINED,
-	.gtk_offload_cmdid = WMI_CMD_UNDEFINED,
-	.csa_offload_enable_cmdid = WMI_CMD_UNDEFINED,
-	.csa_offload_chanswitch_cmdid = WMI_CMD_UNDEFINED,
-	.chatter_set_mode_cmdid = WMI_CMD_UNDEFINED,
-	.peer_tid_addba_cmdid = WMI_CMD_UNDEFINED,
-	.peer_tid_delba_cmdid = WMI_CMD_UNDEFINED,
-	.sta_dtim_ps_method_cmdid = WMI_CMD_UNDEFINED,
-	.sta_uapsd_auto_trig_cmdid = WMI_CMD_UNDEFINED,
-	.sta_keepalive_cmd = WMI_CMD_UNDEFINED,
+	.set_arp_ns_offload_cmdid = WMI_CMD_UNSUPPORTED,
+	.network_list_offload_config_cmdid = WMI_CMD_UNSUPPORTED,
+	.gtk_offload_cmdid = WMI_CMD_UNSUPPORTED,
+	.csa_offload_enable_cmdid = WMI_CMD_UNSUPPORTED,
+	.csa_offload_chanswitch_cmdid = WMI_CMD_UNSUPPORTED,
+	.chatter_set_mode_cmdid = WMI_CMD_UNSUPPORTED,
+	.peer_tid_addba_cmdid = WMI_CMD_UNSUPPORTED,
+	.peer_tid_delba_cmdid = WMI_CMD_UNSUPPORTED,
+	.sta_dtim_ps_method_cmdid = WMI_CMD_UNSUPPORTED,
+	.sta_uapsd_auto_trig_cmdid = WMI_CMD_UNSUPPORTED,
+	.sta_keepalive_cmd = WMI_CMD_UNSUPPORTED,
 	.echo_cmdid = WMI_10X_ECHO_CMDID,
 	.pdev_utf_cmdid = WMI_10X_PDEV_UTF_CMDID,
 	.dbglog_cfg_cmdid = WMI_10X_DBGLOG_CFG_CMDID,
 	.pdev_qvit_cmdid = WMI_10X_PDEV_QVIT_CMDID,
-	.pdev_ftm_intg_cmdid = WMI_CMD_UNDEFINED,
-	.vdev_set_keepalive_cmdid = WMI_CMD_UNDEFINED,
-	.vdev_get_keepalive_cmdid = WMI_CMD_UNDEFINED,
-	.force_fw_hang_cmdid = WMI_CMD_UNDEFINED,
+	.pdev_ftm_intg_cmdid = WMI_CMD_UNSUPPORTED,
+	.vdev_set_keepalive_cmdid = WMI_CMD_UNSUPPORTED,
+	.vdev_get_keepalive_cmdid = WMI_CMD_UNSUPPORTED,
+	.force_fw_hang_cmdid = WMI_CMD_UNSUPPORTED,
 	.gpio_config_cmdid = WMI_10X_GPIO_CONFIG_CMDID,
 	.gpio_output_cmdid = WMI_10X_GPIO_OUTPUT_CMDID,
 };
@@ -611,9 +611,9 @@ static void ath10k_wmi_op_ep_tx_credits(struct ath10k *ar)
 static int ath10k_wmi_cmd_send(struct ath10k *ar, struct sk_buff *skb,
 			       u32 cmd_id)
 {
-	int ret = -EINVAL;
+	int ret = -EOPNOTSUPP;
 
-	if (cmd_id == WMI_CMD_UNDEFINED) {
+	if (cmd_id == WMI_CMD_UNSUPPORTED) {
 		ath10k_warn("wmi command %d is not supported by firmware\n",
 			    cmd_id);
 		return ret;
diff --git a/drivers/net/wireless/ath/ath10k/wmi.h b/drivers/net/wireless/ath/ath10k/wmi.h
index 7692c14c2d16..78c991aec7f9 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.h
+++ b/drivers/net/wireless/ath/ath10k/wmi.h
@@ -359,7 +359,7 @@ enum wmi_cmd_group {
 #define WMI_CMD_GRP(grp_id) (((grp_id) << 12) | 0x1)
 #define WMI_EVT_GRP_START_ID(grp_id) (((grp_id) << 12) | 0x1)
 
-#define WMI_CMD_UNDEFINED 0
+#define WMI_CMD_UNSUPPORTED 0
 
 /* Command IDs and command events for MAIN FW. */
 enum wmi_cmd_id {
-- 
cgit 


From d544943afa678ffe06de295b5420f060389edfc9 Mon Sep 17 00:00:00 2001
From: Bartosz Markowski <bartosz.markowski@tieto.com>
Date: Tue, 15 Oct 2013 09:55:32 +0200
Subject: ath10k: return better errno for unsupported pdev params

Return -EOPNOTSUPP if given parameter is not supported by firmware.

Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/wmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index 9d4752655e54..d1e513ef71ae 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -2119,7 +2119,7 @@ int ath10k_wmi_pdev_set_param(struct ath10k *ar, u32 id, u32 value)
 
 	if (id == WMI_PDEV_PARAM_UNSUPPORTED) {
 		ath10k_warn("pdev param %d not supported by firmware\n", id);
-		return -EINVAL;
+		return -EOPNOTSUPP;
 	}
 
 	skb = ath10k_wmi_alloc_skb(sizeof(*cmd));
-- 
cgit 


From d3900cb25de21476758f1ae8b8d3e4602e3cd4ed Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 16 Oct 2013 02:09:01 -0700
Subject: Bluetooth: Remove enable_hs declaration

This seems to be a left-over. The module parameter enable_hs has
been removed, but its extern declaration is still present. It is
not needed anymore, so just remove it.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index c8bc7bfffaf5..77a971aefcff 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -1787,6 +1787,4 @@ struct hci_inquiry_req {
 };
 #define IREQ_CACHE_FLUSH 0x0001
 
-extern bool enable_hs;
-
 #endif /* __HCI_H */
-- 
cgit 


From 831cbd7a807b3f62f58fe98e0283af510b567d9b Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 16 Oct 2013 15:35:01 +0530
Subject: gpio: lpc32xx: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-lpc32xx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpio/gpio-lpc32xx.c b/drivers/gpio/gpio-lpc32xx.c
index 90a80eb688a9..2d5555decf0c 100644
--- a/drivers/gpio/gpio-lpc32xx.c
+++ b/drivers/gpio/gpio-lpc32xx.c
@@ -21,6 +21,7 @@
 #include <linux/io.h>
 #include <linux/errno.h>
 #include <linux/gpio.h>
+#include <linux/of.h>
 #include <linux/of_gpio.h>
 #include <linux/platform_device.h>
 #include <linux/module.h>
-- 
cgit 


From bd0bf46844ad79c1360eebc73bf6f1e4c31b39fb Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 16 Oct 2013 15:35:02 +0530
Subject: gpio: rcar: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-rcar.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index be3e9c27c491..d3f15ae93bd3 100644
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -22,6 +22,7 @@
 #include <linux/irq.h>
 #include <linux/irqdomain.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/pinctrl/consumer.h>
 #include <linux/platform_data/gpio-rcar.h>
 #include <linux/platform_device.h>
-- 
cgit 


From de0022d4bf3a5acaef75cf1c7c2f8d71b020e8c9 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 16 Oct 2013 15:58:48 +0530
Subject: ASoC: smdk_wm8994: Add .pm to struct smdk_audio_driver

Register PM ops for this driver.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/samsung/smdk_wm8994.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/samsung/smdk_wm8994.c b/sound/soc/samsung/smdk_wm8994.c
index 831972d24fb9..b072bd107b31 100644
--- a/sound/soc/samsung/smdk_wm8994.c
+++ b/sound/soc/samsung/smdk_wm8994.c
@@ -9,6 +9,7 @@
 
 #include "../codecs/wm8994.h"
 #include <sound/pcm_params.h>
+#include <sound/soc.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
@@ -206,6 +207,7 @@ static struct platform_driver smdk_audio_driver = {
 		.name	= "smdk-audio-wm8894",
 		.owner	= THIS_MODULE,
 		.of_match_table = of_match_ptr(samsung_wm8994_of_match),
+		.pm	= &snd_soc_pm_ops,
 	},
 	.probe		= smdk_audio_probe,
 };
-- 
cgit 


From fb61f8622369aad275a4e3487b8aeec7a571fdde Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Thu, 10 Oct 2013 14:11:18 +0200
Subject: ARM: integrator: get the CM control register by proxy

The CM_CTRL register was accessed directly from the LED driver,
which does not work now that we get the base for the register
from the device tree. Add an accessor function to do this and
make the LED driver compile again.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-integrator/core.c            | 8 ++++++++
 arch/arm/mach-integrator/include/mach/cm.h | 3 ++-
 arch/arm/mach-integrator/leds.c            | 2 +-
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c
index 4cdfd7365925..c07c821fb6b3 100644
--- a/arch/arm/mach-integrator/core.c
+++ b/arch/arm/mach-integrator/core.c
@@ -93,6 +93,14 @@ int __init integrator_init(bool is_cp)
 
 static DEFINE_RAW_SPINLOCK(cm_lock);
 
+/**
+ * cm_get - get the value from the CM_CTRL register
+ */
+u32 cm_get(void)
+{
+	return readl(cm_base + INTEGRATOR_HDR_CTRL_OFFSET);
+}
+
 /**
  * cm_control - update the CM_CTRL register.
  * @mask: bits to change
diff --git a/arch/arm/mach-integrator/include/mach/cm.h b/arch/arm/mach-integrator/include/mach/cm.h
index 202e6a57f100..ae6085f1db19 100644
--- a/arch/arm/mach-integrator/include/mach/cm.h
+++ b/arch/arm/mach-integrator/include/mach/cm.h
@@ -1,6 +1,7 @@
 /*
- * update the core module control register.
+ * access the core module control register.
  */
+u32 cm_get(void);
 void cm_control(u32, u32);
 
 #define CM_CTRL	__io_address(INTEGRATOR_HDR_CTRL)
diff --git a/arch/arm/mach-integrator/leds.c b/arch/arm/mach-integrator/leds.c
index 7a7f6d3273bf..ed82535845f7 100644
--- a/arch/arm/mach-integrator/leds.c
+++ b/arch/arm/mach-integrator/leds.c
@@ -78,7 +78,7 @@ static void cm_led_set(struct led_classdev *cdev,
 
 static enum led_brightness cm_led_get(struct led_classdev *cdev)
 {
-	u32 reg = readl(CM_CTRL);
+	u32 reg = cm_get();
 
 	return (reg & CM_CTRL_LED) ? LED_FULL : LED_OFF;
 }
-- 
cgit 


From c791f4d3390527300644a436787f8a95c4bc48c4 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Thu, 10 Oct 2013 14:00:33 +0200
Subject: ARM: integrator: update defconfig

This updates the integrator defconfig, apart from the usual
re-shuffling of symbols due to restructuring of the kernel Kconfig
this will also:

- Enable IM-PD1 so all hardware is enabled out-of-the-box
- Enable the LEDs class and heartbeat trigger, so that the
  LED driver in plat-versatile/ is compiled.
- Enale some debug code like the CLK debug.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/configs/integrator_defconfig | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/arch/arm/configs/integrator_defconfig b/arch/arm/configs/integrator_defconfig
index a8314c3ee84d..5bae19557591 100644
--- a/arch/arm/configs/integrator_defconfig
+++ b/arch/arm/configs/integrator_defconfig
@@ -1,15 +1,17 @@
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
-CONFIG_TINY_RCU=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
+CONFIG_PARTITION_ADVANCED=y
 CONFIG_ARCH_INTEGRATOR=y
 CONFIG_ARCH_INTEGRATOR_AP=y
 CONFIG_ARCH_INTEGRATOR_CP=y
+CONFIG_INTEGRATOR_IMPD1=y
 CONFIG_CPU_ARM720T=y
 CONFIG_CPU_ARM920T=y
 CONFIG_CPU_ARM922T=y
@@ -18,12 +20,9 @@ CONFIG_CPU_ARM1020=y
 CONFIG_CPU_ARM1022=y
 CONFIG_CPU_ARM1026=y
 CONFIG_PCI=y
-CONFIG_NO_HZ=y
-CONFIG_HIGH_RES_TIMERS=y
 CONFIG_PREEMPT=y
 CONFIG_AEABI=y
-CONFIG_LEDS=y
-CONFIG_LEDS_CPU=y
+# CONFIG_ATAGS is not set
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
 CONFIG_CMDLINE="console=ttyAM0,38400n8 root=/dev/nfs ip=bootp"
@@ -44,24 +43,20 @@ CONFIG_IP_PNP_BOOTP=y
 CONFIG_MTD=y
 CONFIG_MTD_CMDLINE_PARTS=y
 CONFIG_MTD_AFS_PARTS=y
-CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_CFI=y
 CONFIG_MTD_CFI_ADV_OPTIONS=y
 CONFIG_MTD_CFI_INTELEXT=y
 CONFIG_MTD_PHYSMAP=y
+CONFIG_PROC_DEVICETREE=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=8192
 CONFIG_NETDEVICES=y
-CONFIG_NET_ETHERNET=y
-CONFIG_NET_PCI=y
 CONFIG_E100=y
 CONFIG_SMC91X=y
 # CONFIG_KEYBOARD_ATKBD is not set
 # CONFIG_SERIO_SERPORT is not set
-CONFIG_SERIAL_AMBA_PL010=y
-CONFIG_SERIAL_AMBA_PL010_CONSOLE=y
 CONFIG_FB=y
 CONFIG_FB_MODE_HELPERS=y
 CONFIG_FB_ARMCLCD=y
@@ -71,19 +66,23 @@ CONFIG_FB_MATROX_MYSTIQUE=y
 # CONFIG_VGA_CONSOLE is not set
 CONFIG_MMC=y
 CONFIG_MMC_ARMMMCI=y
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_LEDS_TRIGGER_CPU=y
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_PL030=y
+CONFIG_COMMON_CLK_DEBUG=y
 CONFIG_EXT2_FS=y
 CONFIG_VFAT_FS=y
 CONFIG_TMPFS=y
 CONFIG_JFFS2_FS=y
 CONFIG_CRAMFS=y
 CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
 CONFIG_ROOT_NFS=y
 CONFIG_NFSD=y
 CONFIG_NFSD_V3=y
-CONFIG_PARTITION_ADVANCED=y
 CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_ISO8859_1=y
 CONFIG_MAGIC_SYSRQ=y
-- 
cgit 


From a67202583f44c90d1155f4de8c8028884a2a1451 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Sat, 15 Jun 2013 23:56:32 +0200
Subject: ARM: integrator: get the LM interrupts from DT

The OF/DT boot path needs to get the LM (Logical Module)
IRQs from the device tree for coherency. This augments the
DT syscon node to contain these IRQs and alter the DT LM
code to get them from there.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 Documentation/devicetree/bindings/arm/arm-boards | 21 +++++++++++++++++++++
 arch/arm/boot/dts/integratorap.dts               |  3 +++
 arch/arm/mach-integrator/integrator_ap.c         |  2 +-
 3 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/arm/arm-boards b/Documentation/devicetree/bindings/arm/arm-boards
index db5858e32d3f..5fdd7b9eeb52 100644
--- a/Documentation/devicetree/bindings/arm/arm-boards
+++ b/Documentation/devicetree/bindings/arm/arm-boards
@@ -9,9 +9,30 @@ Required properties (in root node):
 
 FPGA type interrupt controllers, see the versatile-fpga-irq binding doc.
 
+Required nodes:
+
 In the root node the Integrator/CP must have a /cpcon node pointing
 to the CP control registers, and the Integrator/AP must have a
 /syscon node pointing to the Integrator/AP system controller.
+The AP syscon node must include the logic module interrupts, stated
+in order of module instance <module 0, module 1, module 2 ...>
+example:
+
+/dts-v1/;
+/include/ "integrator.dtsi"
+
+/ {
+	model = "ARM Integrator/AP";
+	compatible = "arm,integrator-ap";
+
+	syscon {
+		/* AP system controller registers */
+		reg = <0x11000000 0x100>;
+		interrupt-parent = <&pic>;
+		/* These are the logic module IRQs */
+		interrupts = <9>, <10>, <11>, <12>;
+	};
+};
 
 
 ARM Versatile Application and Platform Baseboards
diff --git a/arch/arm/boot/dts/integratorap.dts b/arch/arm/boot/dts/integratorap.dts
index b6b82eca8d1e..453ab0ea4d2b 100644
--- a/arch/arm/boot/dts/integratorap.dts
+++ b/arch/arm/boot/dts/integratorap.dts
@@ -21,6 +21,9 @@
 	syscon {
 		/* AP system controller registers */
 		reg = <0x11000000 0x100>;
+		interrupt-parent = <&pic>;
+		/* These are the logical module IRQs */
+		interrupts = <9>, <10>, <11>, <12>;
 	};
 
 	timer0: timer@13000000 {
diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c
index d9e95e612fcb..f5fbd8adef0c 100644
--- a/arch/arm/mach-integrator/integrator_ap.c
+++ b/arch/arm/mach-integrator/integrator_ap.c
@@ -541,7 +541,7 @@ static void __init ap_init_of(void)
 		lmdev->resource.start = 0xc0000000 + 0x10000000 * i;
 		lmdev->resource.end = lmdev->resource.start + 0x0fffffff;
 		lmdev->resource.flags = IORESOURCE_MEM;
-		lmdev->irq = IRQ_AP_EXPINT0 + i;
+		lmdev->irq = irq_of_parse_and_map(syscon, i);
 		lmdev->id = i;
 
 		lm_device_register(lmdev);
-- 
cgit 


From 50564a794d64ace92c189d7cb5b591a60d3de9c2 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Sun, 16 Jun 2013 00:05:07 +0200
Subject: ARM: integrator: print the Linux IRQ in LL_DEBUG code

The static HW irqs have no meaning in the interrupt handler
and does not correlate to the /proc/interrupts IRQ numbers
anymore, print the Linux IRQ number instead.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-integrator/pci_v3.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c
index bef100527c42..2d10793fa2a0 100644
--- a/arch/arm/mach-integrator/pci_v3.c
+++ b/arch/arm/mach-integrator/pci_v3.c
@@ -605,7 +605,7 @@ v3_pci_fault(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 	return 1;
 }
 
-static irqreturn_t v3_irq(int dummy, void *devid)
+static irqreturn_t v3_irq(int irq, void *devid)
 {
 #ifdef CONFIG_DEBUG_LL
 	struct pt_regs *regs = get_irq_regs();
@@ -615,7 +615,7 @@ static irqreturn_t v3_irq(int dummy, void *devid)
 	extern void printascii(const char *);
 
 	sprintf(buf, "V3 int %d: pc=0x%08lx [%08lx] LBFADDR=%08x LBFCODE=%02x "
-		"ISTAT=%02x\n", IRQ_AP_V3INT, pc, instr,
+		"ISTAT=%02x\n", irq, pc, instr,
 		__raw_readl(ap_syscon_base + INTEGRATOR_SC_LBFADDR_OFFSET),
 		__raw_readl(ap_syscon_base + INTEGRATOR_SC_LBFCODE_OFFSET) & 255,
 		v3_readb(V3_LB_ISTAT));
-- 
cgit 


From d7057e1de8d6c180eb2ecd90b0cab9d1a8a4d8ab Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Sat, 15 Jun 2013 22:01:13 +0200
Subject: ARM: integrator: delete non-devicetree boot path

The Device Tree boot path now supports everything the ATAG
boot can provide, and the two are equivalent. This deletes
the ATAG boot path from the Integrator/AP and
Integrator/CP platforms to move them on to the future.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/Kconfig                         |   1 +
 arch/arm/mach-integrator/core.c          |  57 ----------
 arch/arm/mach-integrator/integrator_ap.c | 135 ------------------------
 arch/arm/mach-integrator/integrator_cp.c | 173 -------------------------------
 arch/arm/mach-integrator/pci_v3.c        | 122 +++++-----------------
 5 files changed, 25 insertions(+), 463 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1ad6fb6c094d..d9ce86857791 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -317,6 +317,7 @@ config ARCH_INTEGRATOR
 	select NEED_MACH_MEMORY_H
 	select PLAT_VERSATILE
 	select SPARSE_IRQ
+	select USE_OF
 	select VERSATILE_FPGA_IRQ
 	help
 	  Support for ARM's Integrator platform.
diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c
index c07c821fb6b3..4698942f3ed3 100644
--- a/arch/arm/mach-integrator/core.c
+++ b/arch/arm/mach-integrator/core.c
@@ -34,63 +34,6 @@
 
 #include "common.h"
 
-#ifdef CONFIG_ATAGS
-
-#define INTEGRATOR_RTC_IRQ	{ IRQ_RTCINT }
-#define INTEGRATOR_UART0_IRQ	{ IRQ_UARTINT0 }
-#define INTEGRATOR_UART1_IRQ	{ IRQ_UARTINT1 }
-#define KMI0_IRQ		{ IRQ_KMIINT0 }
-#define KMI1_IRQ		{ IRQ_KMIINT1 }
-
-static AMBA_APB_DEVICE(rtc, "rtc", 0,
-	INTEGRATOR_RTC_BASE, INTEGRATOR_RTC_IRQ, NULL);
-
-static AMBA_APB_DEVICE(uart0, "uart0", 0,
-	INTEGRATOR_UART0_BASE, INTEGRATOR_UART0_IRQ, NULL);
-
-static AMBA_APB_DEVICE(uart1, "uart1", 0,
-	INTEGRATOR_UART1_BASE, INTEGRATOR_UART1_IRQ, NULL);
-
-static AMBA_APB_DEVICE(kmi0, "kmi0", 0, KMI0_BASE, KMI0_IRQ, NULL);
-static AMBA_APB_DEVICE(kmi1, "kmi1", 0, KMI1_BASE, KMI1_IRQ, NULL);
-
-static struct amba_device *amba_devs[] __initdata = {
-	&rtc_device,
-	&uart0_device,
-	&uart1_device,
-	&kmi0_device,
-	&kmi1_device,
-};
-
-int __init integrator_init(bool is_cp)
-{
-	int i;
-
-	/*
-	 * The Integrator/AP lacks necessary AMBA PrimeCell IDs, so we need to
-	 * hard-code them. The Integator/CP and forward have proper cell IDs.
-	 * Else we leave them undefined to the bus driver can autoprobe them.
-	 */
-	if (!is_cp && IS_ENABLED(CONFIG_ARCH_INTEGRATOR_AP)) {
-		rtc_device.periphid	= 0x00041030;
-		uart0_device.periphid	= 0x00041010;
-		uart1_device.periphid	= 0x00041010;
-		kmi0_device.periphid	= 0x00041050;
-		kmi1_device.periphid	= 0x00041050;
-		uart0_device.dev.platform_data = &ap_uart_data;
-		uart1_device.dev.platform_data = &ap_uart_data;
-	}
-
-	for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
-		struct amba_device *d = amba_devs[i];
-		amba_device_register(d, &iomem_resource);
-	}
-
-	return 0;
-}
-
-#endif
-
 static DEFINE_RAW_SPINLOCK(cm_lock);
 
 /**
diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c
index f5fbd8adef0c..563f1c63c25c 100644
--- a/arch/arm/mach-integrator/integrator_ap.c
+++ b/arch/arm/mach-integrator/integrator_ap.c
@@ -402,8 +402,6 @@ void __init ap_init_early(void)
 {
 }
 
-#ifdef CONFIG_OF
-
 static void __init ap_of_timer_init(void)
 {
 	struct device_node *node;
@@ -564,136 +562,3 @@ DT_MACHINE_START(INTEGRATOR_AP_DT, "ARM Integrator/AP (Device Tree)")
 	.restart	= integrator_restart,
 	.dt_compat      = ap_dt_board_compat,
 MACHINE_END
-
-#endif
-
-#ifdef CONFIG_ATAGS
-
-/*
- * For the ATAG boot some static mappings are needed. This will
- * go away with the ATAG support down the road.
- */
-
-static struct map_desc ap_io_desc_atag[] __initdata = {
-	{
-		.virtual	= IO_ADDRESS(INTEGRATOR_SC_BASE),
-		.pfn		= __phys_to_pfn(INTEGRATOR_SC_BASE),
-		.length		= SZ_4K,
-		.type		= MT_DEVICE
-	},
-};
-
-static void __init ap_map_io_atag(void)
-{
-	iotable_init(ap_io_desc_atag, ARRAY_SIZE(ap_io_desc_atag));
-	ap_map_io();
-}
-
-/*
- * This is where non-devicetree initialization code is collected and stashed
- * for eventual deletion.
- */
-
-static struct platform_device pci_v3_device = {
-	.name		= "pci-v3",
-	.id		= 0,
-};
-
-static struct resource cfi_flash_resource = {
-	.start		= INTEGRATOR_FLASH_BASE,
-	.end		= INTEGRATOR_FLASH_BASE + INTEGRATOR_FLASH_SIZE - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device cfi_flash_device = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &ap_flash_data,
-	},
-	.num_resources	= 1,
-	.resource	= &cfi_flash_resource,
-};
-
-static void __init ap_timer_init(void)
-{
-	struct clk *clk;
-	unsigned long rate;
-
-	clk = clk_get_sys("ap_timer", NULL);
-	BUG_ON(IS_ERR(clk));
-	clk_prepare_enable(clk);
-	rate = clk_get_rate(clk);
-
-	writel(0, TIMER0_VA_BASE + TIMER_CTRL);
-	writel(0, TIMER1_VA_BASE + TIMER_CTRL);
-	writel(0, TIMER2_VA_BASE + TIMER_CTRL);
-
-	integrator_clocksource_init(rate, (void __iomem *)TIMER2_VA_BASE);
-	integrator_clockevent_init(rate, (void __iomem *)TIMER1_VA_BASE,
-				IRQ_TIMERINT1);
-}
-
-#define INTEGRATOR_SC_VALID_INT	0x003fffff
-
-static void __init ap_init_irq(void)
-{
-	/* Disable all interrupts initially. */
-	/* Do the core module ones */
-	writel(-1, VA_CMIC_BASE + IRQ_ENABLE_CLEAR);
-
-	/* do the header card stuff next */
-	writel(-1, VA_IC_BASE + IRQ_ENABLE_CLEAR);
-	writel(-1, VA_IC_BASE + FIQ_ENABLE_CLEAR);
-
-	fpga_irq_init(VA_IC_BASE, "SC", IRQ_PIC_START,
-		-1, INTEGRATOR_SC_VALID_INT, NULL);
-	integrator_clk_init(false);
-}
-
-static void __init ap_init(void)
-{
-	unsigned long sc_dec;
-	int i;
-
-	platform_device_register(&pci_v3_device);
-	platform_device_register(&cfi_flash_device);
-
-	ap_syscon_base = __io_address(INTEGRATOR_SC_BASE);
-	sc_dec = readl(ap_syscon_base + INTEGRATOR_SC_DEC_OFFSET);
-	for (i = 0; i < 4; i++) {
-		struct lm_device *lmdev;
-
-		if ((sc_dec & (16 << i)) == 0)
-			continue;
-
-		lmdev = kzalloc(sizeof(struct lm_device), GFP_KERNEL);
-		if (!lmdev)
-			continue;
-
-		lmdev->resource.start = 0xc0000000 + 0x10000000 * i;
-		lmdev->resource.end = lmdev->resource.start + 0x0fffffff;
-		lmdev->resource.flags = IORESOURCE_MEM;
-		lmdev->irq = IRQ_AP_EXPINT0 + i;
-		lmdev->id = i;
-
-		lm_device_register(lmdev);
-	}
-
-	integrator_init(false);
-}
-
-MACHINE_START(INTEGRATOR, "ARM-Integrator")
-	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-	.atag_offset	= 0x100,
-	.reserve	= integrator_reserve,
-	.map_io		= ap_map_io_atag,
-	.init_early	= ap_init_early,
-	.init_irq	= ap_init_irq,
-	.handle_irq	= fpga_handle_irq,
-	.init_time	= ap_timer_init,
-	.init_machine	= ap_init,
-	.restart	= integrator_restart,
-MACHINE_END
-
-#endif
diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c
index 8c60fcb08a98..871c25dee7fe 100644
--- a/arch/arm/mach-integrator/integrator_cp.c
+++ b/arch/arm/mach-integrator/integrator_cp.c
@@ -249,7 +249,6 @@ static void __init intcp_init_early(void)
 #endif
 }
 
-#ifdef CONFIG_OF
 static const struct of_device_id fpga_irq_of_match[] __initconst = {
 	{ .compatible = "arm,versatile-fpga-irq", .data = fpga_irq_of_init, },
 	{ /* Sentinel */ }
@@ -354,175 +353,3 @@ DT_MACHINE_START(INTEGRATOR_CP_DT, "ARM Integrator/CP (Device Tree)")
 	.restart	= integrator_restart,
 	.dt_compat      = intcp_dt_board_compat,
 MACHINE_END
-
-#endif
-
-#ifdef CONFIG_ATAGS
-
-/*
- * For the ATAG boot some static mappings are needed. This will
- * go away with the ATAG support down the road.
- */
-
-static struct map_desc intcp_io_desc_atag[] __initdata = {
-	{
-		.virtual	= IO_ADDRESS(INTEGRATOR_CP_CTL_BASE),
-		.pfn		= __phys_to_pfn(INTEGRATOR_CP_CTL_BASE),
-		.length		= SZ_4K,
-		.type		= MT_DEVICE
-	},
-};
-
-static void __init intcp_map_io_atag(void)
-{
-	iotable_init(intcp_io_desc_atag, ARRAY_SIZE(intcp_io_desc_atag));
-	intcp_con_base = __io_address(INTEGRATOR_CP_CTL_BASE);
-	intcp_map_io();
-}
-
-
-/*
- * This is where non-devicetree initialization code is collected and stashed
- * for eventual deletion.
- */
-
-#define INTCP_FLASH_SIZE		SZ_32M
-
-static struct resource intcp_flash_resource = {
-	.start		= INTCP_PA_FLASH_BASE,
-	.end		= INTCP_PA_FLASH_BASE + INTCP_FLASH_SIZE - 1,
-	.flags		= IORESOURCE_MEM,
-};
-
-static struct platform_device intcp_flash_device = {
-	.name		= "physmap-flash",
-	.id		= 0,
-	.dev		= {
-		.platform_data	= &intcp_flash_data,
-	},
-	.num_resources	= 1,
-	.resource	= &intcp_flash_resource,
-};
-
-#define INTCP_ETH_SIZE			0x10
-
-static struct resource smc91x_resources[] = {
-	[0] = {
-		.start	= INTEGRATOR_CP_ETH_BASE,
-		.end	= INTEGRATOR_CP_ETH_BASE + INTCP_ETH_SIZE - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= IRQ_CP_ETHINT,
-		.end	= IRQ_CP_ETHINT,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static struct platform_device smc91x_device = {
-	.name		= "smc91x",
-	.id		= 0,
-	.num_resources	= ARRAY_SIZE(smc91x_resources),
-	.resource	= smc91x_resources,
-};
-
-static struct platform_device *intcp_devs[] __initdata = {
-	&intcp_flash_device,
-	&smc91x_device,
-};
-
-#define INTCP_VA_CIC_BASE		__io_address(INTEGRATOR_HDR_BASE + 0x40)
-#define INTCP_VA_PIC_BASE		__io_address(INTEGRATOR_IC_BASE)
-#define INTCP_VA_SIC_BASE		__io_address(INTEGRATOR_CP_SIC_BASE)
-
-static void __init intcp_init_irq(void)
-{
-	u32 pic_mask, cic_mask, sic_mask;
-
-	/* These masks are for the HW IRQ registers */
-	pic_mask = ~((~0u) << (11 - 0));
-	pic_mask |= (~((~0u) << (29 - 22))) << 22;
-	cic_mask = ~((~0u) << (1 + IRQ_CIC_END - IRQ_CIC_START));
-	sic_mask = ~((~0u) << (1 + IRQ_SIC_END - IRQ_SIC_START));
-
-	/*
-	 * Disable all interrupt sources
-	 */
-	writel(0xffffffff, INTCP_VA_PIC_BASE + IRQ_ENABLE_CLEAR);
-	writel(0xffffffff, INTCP_VA_PIC_BASE + FIQ_ENABLE_CLEAR);
-	writel(0xffffffff, INTCP_VA_CIC_BASE + IRQ_ENABLE_CLEAR);
-	writel(0xffffffff, INTCP_VA_CIC_BASE + FIQ_ENABLE_CLEAR);
-	writel(sic_mask, INTCP_VA_SIC_BASE + IRQ_ENABLE_CLEAR);
-	writel(sic_mask, INTCP_VA_SIC_BASE + FIQ_ENABLE_CLEAR);
-
-	fpga_irq_init(INTCP_VA_PIC_BASE, "PIC", IRQ_PIC_START,
-		      -1, pic_mask, NULL);
-
-	fpga_irq_init(INTCP_VA_CIC_BASE, "CIC", IRQ_CIC_START,
-		      -1, cic_mask, NULL);
-
-	fpga_irq_init(INTCP_VA_SIC_BASE, "SIC", IRQ_SIC_START,
-		      IRQ_CP_CPPLDINT, sic_mask, NULL);
-
-	integrator_clk_init(true);
-}
-
-#define TIMER0_VA_BASE __io_address(INTEGRATOR_TIMER0_BASE)
-#define TIMER1_VA_BASE __io_address(INTEGRATOR_TIMER1_BASE)
-#define TIMER2_VA_BASE __io_address(INTEGRATOR_TIMER2_BASE)
-
-static void __init cp_timer_init(void)
-{
-	writel(0, TIMER0_VA_BASE + TIMER_CTRL);
-	writel(0, TIMER1_VA_BASE + TIMER_CTRL);
-	writel(0, TIMER2_VA_BASE + TIMER_CTRL);
-
-	sp804_clocksource_init(TIMER2_VA_BASE, "timer2");
-	sp804_clockevents_init(TIMER1_VA_BASE, IRQ_TIMERINT1, "timer1");
-}
-
-#define INTEGRATOR_CP_MMC_IRQS	{ IRQ_CP_MMCIINT0, IRQ_CP_MMCIINT1 }
-#define INTEGRATOR_CP_AACI_IRQS	{ IRQ_CP_AACIINT }
-
-static AMBA_APB_DEVICE(mmc, "mmci", 0, INTEGRATOR_CP_MMC_BASE,
-	INTEGRATOR_CP_MMC_IRQS, &mmc_data);
-
-static AMBA_APB_DEVICE(aaci, "aaci", 0, INTEGRATOR_CP_AACI_BASE,
-	INTEGRATOR_CP_AACI_IRQS, NULL);
-
-static AMBA_AHB_DEVICE(clcd, "clcd", 0, INTCP_PA_CLCD_BASE,
-	{ IRQ_CP_CLCDCINT }, &clcd_data);
-
-static struct amba_device *amba_devs[] __initdata = {
-	&mmc_device,
-	&aaci_device,
-	&clcd_device,
-};
-
-static void __init intcp_init(void)
-{
-	int i;
-
-	platform_add_devices(intcp_devs, ARRAY_SIZE(intcp_devs));
-
-	for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
-		struct amba_device *d = amba_devs[i];
-		amba_device_register(d, &iomem_resource);
-	}
-	integrator_init(true);
-}
-
-MACHINE_START(CINTEGRATOR, "ARM-IntegratorCP")
-	/* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
-	.atag_offset	= 0x100,
-	.reserve	= integrator_reserve,
-	.map_io		= intcp_map_io_atag,
-	.init_early	= intcp_init_early,
-	.init_irq	= intcp_init_irq,
-	.handle_irq	= fpga_handle_irq,
-	.init_time	= cp_timer_init,
-	.init_machine	= intcp_init,
-	.restart	= integrator_restart,
-MACHINE_END
-
-#endif
diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c
index 2d10793fa2a0..67406fc46004 100644
--- a/arch/arm/mach-integrator/pci_v3.c
+++ b/arch/arm/mach-integrator/pci_v3.c
@@ -809,32 +809,6 @@ static u8 __init pci_v3_swizzle(struct pci_dev *dev, u8 *pinp)
 	return pci_common_swizzle(dev, pinp);
 }
 
-static int irq_tab[4] __initdata = {
-	IRQ_AP_PCIINT0,	IRQ_AP_PCIINT1,	IRQ_AP_PCIINT2,	IRQ_AP_PCIINT3
-};
-
-/*
- * map the specified device/slot/pin to an IRQ.  This works out such
- * that slot 9 pin 1 is INT0, pin 2 is INT1, and slot 10 pin 1 is INT1.
- */
-static int __init pci_v3_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-{
-	int intnr = ((slot - 9) + (pin - 1)) & 3;
-
-	return irq_tab[intnr];
-}
-
-static struct hw_pci pci_v3 __initdata = {
-	.swizzle		= pci_v3_swizzle,
-	.setup			= pci_v3_setup,
-	.nr_controllers		= 1,
-	.ops			= &pci_v3_ops,
-	.preinit		= pci_v3_preinit,
-	.postinit		= pci_v3_postinit,
-};
-
-#ifdef CONFIG_OF
-
 static int __init pci_v3_map_irq_dt(const struct pci_dev *dev, u8 slot, u8 pin)
 {
 	struct of_irq oirq;
@@ -851,14 +825,36 @@ static int __init pci_v3_map_irq_dt(const struct pci_dev *dev, u8 slot, u8 pin)
 				     oirq.size);
 }
 
-static int __init pci_v3_dtprobe(struct platform_device *pdev,
-				struct device_node *np)
+static struct hw_pci pci_v3 __initdata = {
+	.swizzle		= pci_v3_swizzle,
+	.setup			= pci_v3_setup,
+	.nr_controllers		= 1,
+	.ops			= &pci_v3_ops,
+	.preinit		= pci_v3_preinit,
+	.postinit		= pci_v3_postinit,
+};
+
+static int __init pci_v3_probe(struct platform_device *pdev)
 {
+	struct device_node *np = pdev->dev.of_node;
 	struct of_pci_range_parser parser;
 	struct of_pci_range range;
 	struct resource *res;
 	int irq, ret;
 
+	/* Remap the Integrator system controller */
+	ap_syscon_base = ioremap(INTEGRATOR_SC_BASE, 0x100);
+	if (!ap_syscon_base) {
+		dev_err(&pdev->dev, "unable to remap the AP syscon for PCIv3\n");
+		return -ENODEV;
+	}
+
+	/* Device tree probe path */
+	if (!np) {
+		dev_err(&pdev->dev, "no device tree node for PCIv3\n");
+		return -ENODEV;
+	}
+
 	if (of_pci_range_parser_init(&parser, np))
 		return -EINVAL;
 
@@ -925,76 +921,6 @@ static int __init pci_v3_dtprobe(struct platform_device *pdev,
 	return 0;
 }
 
-#else
-
-static inline int pci_v3_dtprobe(struct platform_device *pdev,
-				  struct device_node *np)
-{
-	return -EINVAL;
-}
-
-#endif
-
-static int __init pci_v3_probe(struct platform_device *pdev)
-{
-	struct device_node *np = pdev->dev.of_node;
-	int ret;
-
-	/* Remap the Integrator system controller */
-	ap_syscon_base = ioremap(INTEGRATOR_SC_BASE, 0x100);
-	if (!ap_syscon_base) {
-		dev_err(&pdev->dev, "unable to remap the AP syscon for PCIv3\n");
-		return -ENODEV;
-	}
-
-	/* Device tree probe path */
-	if (np)
-		return pci_v3_dtprobe(pdev, np);
-
-	pci_v3_base = devm_ioremap(&pdev->dev, PHYS_PCI_V3_BASE, SZ_64K);
-	if (!pci_v3_base) {
-		dev_err(&pdev->dev, "unable to remap PCIv3 base\n");
-		return -ENODEV;
-	}
-
-	ret = devm_request_irq(&pdev->dev, IRQ_AP_V3INT, v3_irq, 0, "V3", NULL);
-	if (ret) {
-		dev_err(&pdev->dev, "unable to grab PCI error interrupt: %d\n",
-			ret);
-		return -ENODEV;
-	}
-
-	conf_mem.name = "PCIv3 config";
-	conf_mem.start = PHYS_PCI_CONFIG_BASE;
-	conf_mem.end = PHYS_PCI_CONFIG_BASE + SZ_16M - 1;
-	conf_mem.flags = IORESOURCE_MEM;
-
-	io_mem.name = "PCIv3 I/O";
-	io_mem.start = PHYS_PCI_IO_BASE;
-	io_mem.end = PHYS_PCI_IO_BASE + SZ_16M - 1;
-	io_mem.flags = IORESOURCE_MEM;
-
-	non_mem_pci = 0x00000000;
-	non_mem_pci_sz = SZ_256M;
-	non_mem.name = "PCIv3 non-prefetched mem";
-	non_mem.start = PHYS_PCI_MEM_BASE;
-	non_mem.end = PHYS_PCI_MEM_BASE + SZ_256M - 1;
-	non_mem.flags = IORESOURCE_MEM;
-
-	pre_mem_pci = 0x10000000;
-	pre_mem_pci_sz = SZ_256M;
-	pre_mem.name = "PCIv3 prefetched mem";
-	pre_mem.start = PHYS_PCI_PRE_BASE + SZ_256M;
-	pre_mem.end = PHYS_PCI_PRE_BASE + SZ_256M - 1;
-	pre_mem.flags = IORESOURCE_MEM | IORESOURCE_PREFETCH;
-
-	pci_v3.map_irq = pci_v3_map_irq;
-
-	pci_common_init_dev(&pdev->dev, &pci_v3);
-
-	return 0;
-}
-
 static const struct of_device_id pci_ids[] = {
 	{ .compatible = "v3,v360epc-pci", },
 	{},
-- 
cgit 


From 578fdfdf32a84ca17ed2090dba4ff2c8e688cc89 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Sat, 15 Jun 2013 23:58:15 +0200
Subject: ARM: integrator: decommission the <mach/irqs.h> header

This header is no longer needed when we boot from the device tree.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-integrator/core.c              |  1 -
 arch/arm/mach-integrator/include/mach/irqs.h | 81 ----------------------------
 arch/arm/mach-integrator/integrator_ap.c     |  1 -
 arch/arm/mach-integrator/integrator_cp.c     |  1 -
 arch/arm/mach-integrator/pci_v3.c            |  1 -
 5 files changed, 85 deletions(-)
 delete mode 100644 arch/arm/mach-integrator/include/mach/irqs.h

diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c
index 4698942f3ed3..dd85cc9d234c 100644
--- a/arch/arm/mach-integrator/core.c
+++ b/arch/arm/mach-integrator/core.c
@@ -26,7 +26,6 @@
 #include <mach/hardware.h>
 #include <mach/platform.h>
 #include <mach/cm.h>
-#include <mach/irqs.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/time.h>
diff --git a/arch/arm/mach-integrator/include/mach/irqs.h b/arch/arm/mach-integrator/include/mach/irqs.h
deleted file mode 100644
index eff0adad9ae3..000000000000
--- a/arch/arm/mach-integrator/include/mach/irqs.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- *  arch/arm/mach-integrator/include/mach/irqs.h
- *
- *  Copyright (C) 1999 ARM Limited
- *  Copyright (C) 2000 Deep Blue Solutions Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-/*
- * Interrupt numbers, all of the above are just static reservations
- * used so they can be encoded into device resources. They will finally
- * be done away with when switching to device tree.
- */
-#define IRQ_PIC_START			64
-#define IRQ_SOFTINT			(IRQ_PIC_START+0)
-#define IRQ_UARTINT0			(IRQ_PIC_START+1)
-#define IRQ_UARTINT1			(IRQ_PIC_START+2)
-#define IRQ_KMIINT0			(IRQ_PIC_START+3)
-#define IRQ_KMIINT1			(IRQ_PIC_START+4)
-#define IRQ_TIMERINT0			(IRQ_PIC_START+5)
-#define IRQ_TIMERINT1			(IRQ_PIC_START+6)
-#define IRQ_TIMERINT2			(IRQ_PIC_START+7)
-#define IRQ_RTCINT			(IRQ_PIC_START+8)
-#define IRQ_AP_EXPINT0			(IRQ_PIC_START+9)
-#define IRQ_AP_EXPINT1			(IRQ_PIC_START+10)
-#define IRQ_AP_EXPINT2			(IRQ_PIC_START+11)
-#define IRQ_AP_EXPINT3			(IRQ_PIC_START+12)
-#define IRQ_AP_PCIINT0			(IRQ_PIC_START+13)
-#define IRQ_AP_PCIINT1			(IRQ_PIC_START+14)
-#define IRQ_AP_PCIINT2			(IRQ_PIC_START+15)
-#define IRQ_AP_PCIINT3			(IRQ_PIC_START+16)
-#define IRQ_AP_V3INT			(IRQ_PIC_START+17)
-#define IRQ_AP_CPINT0			(IRQ_PIC_START+18)
-#define IRQ_AP_CPINT1			(IRQ_PIC_START+19)
-#define IRQ_AP_LBUSTIMEOUT 		(IRQ_PIC_START+20)
-#define IRQ_AP_APCINT			(IRQ_PIC_START+21)
-#define IRQ_CP_CLCDCINT			(IRQ_PIC_START+22)
-#define IRQ_CP_MMCIINT0			(IRQ_PIC_START+23)
-#define IRQ_CP_MMCIINT1			(IRQ_PIC_START+24)
-#define IRQ_CP_AACIINT			(IRQ_PIC_START+25)
-#define IRQ_CP_CPPLDINT			(IRQ_PIC_START+26)
-#define IRQ_CP_ETHINT			(IRQ_PIC_START+27)
-#define IRQ_CP_TSPENINT			(IRQ_PIC_START+28)
-#define IRQ_PIC_END			(IRQ_PIC_START+28)
-
-#define IRQ_CIC_START			(IRQ_PIC_END+1)
-#define IRQ_CM_SOFTINT			(IRQ_CIC_START+0)
-#define IRQ_CM_COMMRX			(IRQ_CIC_START+1)
-#define IRQ_CM_COMMTX			(IRQ_CIC_START+2)
-#define IRQ_CIC_END			(IRQ_CIC_START+2)
-
-/*
- * IntegratorCP only
- */
-#define IRQ_SIC_START			(IRQ_CIC_END+1)
-#define IRQ_SIC_CP_SOFTINT		(IRQ_SIC_START+0)
-#define IRQ_SIC_CP_RI0			(IRQ_SIC_START+1)
-#define IRQ_SIC_CP_RI1			(IRQ_SIC_START+2)
-#define IRQ_SIC_CP_CARDIN		(IRQ_SIC_START+3)
-#define IRQ_SIC_CP_LMINT0		(IRQ_SIC_START+4)
-#define IRQ_SIC_CP_LMINT1		(IRQ_SIC_START+5)
-#define IRQ_SIC_CP_LMINT2		(IRQ_SIC_START+6)
-#define IRQ_SIC_CP_LMINT3		(IRQ_SIC_START+7)
-#define IRQ_SIC_CP_LMINT4		(IRQ_SIC_START+8)
-#define IRQ_SIC_CP_LMINT5		(IRQ_SIC_START+9)
-#define IRQ_SIC_CP_LMINT6		(IRQ_SIC_START+10)
-#define IRQ_SIC_CP_LMINT7		(IRQ_SIC_START+11)
-#define IRQ_SIC_END			(IRQ_SIC_START+11)
diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c
index 563f1c63c25c..88a62a5febc2 100644
--- a/arch/arm/mach-integrator/integrator_ap.c
+++ b/arch/arm/mach-integrator/integrator_ap.c
@@ -51,7 +51,6 @@
 #include <asm/mach-types.h>
 
 #include <mach/lm.h>
-#include <mach/irqs.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/irq.h>
diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c
index 871c25dee7fe..26b344197560 100644
--- a/arch/arm/mach-integrator/integrator_cp.c
+++ b/arch/arm/mach-integrator/integrator_cp.c
@@ -38,7 +38,6 @@
 
 #include <mach/cm.h>
 #include <mach/lm.h>
-#include <mach/irqs.h>
 
 #include <asm/mach/arch.h>
 #include <asm/mach/irq.h>
diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c
index 67406fc46004..ce8d0cafb7cf 100644
--- a/arch/arm/mach-integrator/pci_v3.c
+++ b/arch/arm/mach-integrator/pci_v3.c
@@ -36,7 +36,6 @@
 
 #include <mach/hardware.h>
 #include <mach/platform.h>
-#include <mach/irqs.h>
 
 #include <asm/mach/map.h>
 #include <asm/signal.h>
-- 
cgit 


From bb4dbefe4c6ae3685152d03e318e093d5f6f795a Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Sun, 16 Jun 2013 02:44:27 +0200
Subject: ARM: integrator: move CM base into device tree

This moves the core module (CM) control base into the device
tree. It is a simple memory range of 0x200 bytes. Move the
cm header down into the machine directory and unexport the
cm_control() symbol as no modules are using it.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 Documentation/devicetree/bindings/arm/arm-boards |  19 ++++
 arch/arm/boot/dts/integrator.dtsi                |   5 +
 arch/arm/mach-integrator/cm.h                    |  41 ++++++++
 arch/arm/mach-integrator/core.c                  | 120 +++++++++++++++--------
 arch/arm/mach-integrator/include/mach/cm.h       |  39 --------
 arch/arm/mach-integrator/integrator_ap.c         |   6 +-
 arch/arm/mach-integrator/integrator_cp.c         |   3 +-
 arch/arm/mach-integrator/leds.c                  |   3 +-
 8 files changed, 149 insertions(+), 87 deletions(-)
 create mode 100644 arch/arm/mach-integrator/cm.h
 delete mode 100644 arch/arm/mach-integrator/include/mach/cm.h

diff --git a/Documentation/devicetree/bindings/arm/arm-boards b/Documentation/devicetree/bindings/arm/arm-boards
index 5fdd7b9eeb52..0ebf3d94e8bf 100644
--- a/Documentation/devicetree/bindings/arm/arm-boards
+++ b/Documentation/devicetree/bindings/arm/arm-boards
@@ -11,6 +11,20 @@ FPGA type interrupt controllers, see the versatile-fpga-irq binding doc.
 
 Required nodes:
 
+- core-module: the root node to the Integrator platforms must have
+  a core-module with regs and the compatible string
+  "arm,core-module-integrator"
+
+  Required properties for the core module:
+  - regs: the location and size of the core module registers, one
+    range of 0x200 bytes.
+
+- cpcon/syscon: the root node the Integrator/CP must have a /cpcon
+  node pointing to the CP control registers, and the Integrator/AP
+  must have a /syscon node pointing to the Integrator/AP system
+  controller. The AP syscon node must include the logical module
+  interrupts.
+
 In the root node the Integrator/CP must have a /cpcon node pointing
 to the CP control registers, and the Integrator/AP must have a
 /syscon node pointing to the Integrator/AP system controller.
@@ -25,6 +39,11 @@ example:
 	model = "ARM Integrator/AP";
 	compatible = "arm,integrator-ap";
 
+	core-module@10000000 {
+		compatible = "arm,core-module-integrator";
+		reg = <0x10000000 0x200>;
+	};
+
 	syscon {
 		/* AP system controller registers */
 		reg = <0x11000000 0x100>;
diff --git a/arch/arm/boot/dts/integrator.dtsi b/arch/arm/boot/dts/integrator.dtsi
index 813b91d7bea2..0f06f8687b0b 100644
--- a/arch/arm/boot/dts/integrator.dtsi
+++ b/arch/arm/boot/dts/integrator.dtsi
@@ -5,6 +5,11 @@
 /include/ "skeleton.dtsi"
 
 / {
+	core-module@10000000 {
+		compatible = "arm,core-module-integrator";
+		reg = <0x10000000 0x200>;
+	};
+
 	timer@13000000 {
 		reg = <0x13000000 0x100>;
 		interrupt-parent = <&pic>;
diff --git a/arch/arm/mach-integrator/cm.h b/arch/arm/mach-integrator/cm.h
new file mode 100644
index 000000000000..4ecff7bff482
--- /dev/null
+++ b/arch/arm/mach-integrator/cm.h
@@ -0,0 +1,41 @@
+/*
+ * access the core module control register.
+ */
+u32 cm_get(void);
+void cm_control(u32, u32);
+
+struct device_node;
+void cm_init(void);
+void cm_clear_irqs(void);
+
+#define CM_CTRL_LED			(1 << 0)
+#define CM_CTRL_nMBDET			(1 << 1)
+#define CM_CTRL_REMAP			(1 << 2)
+#define CM_CTRL_RESET			(1 << 3)
+
+/*
+ * Integrator/AP,PP2 specific
+ */
+#define CM_CTRL_HIGHVECTORS		(1 << 4)
+#define CM_CTRL_BIGENDIAN		(1 << 5)
+#define CM_CTRL_FASTBUS			(1 << 6)
+#define CM_CTRL_SYNC			(1 << 7)
+
+/*
+ * ARM926/946/966 Integrator/CP specific
+ */
+#define CM_CTRL_LCDBIASEN		(1 << 8)
+#define CM_CTRL_LCDBIASUP		(1 << 9)
+#define CM_CTRL_LCDBIASDN		(1 << 10)
+#define CM_CTRL_LCDMUXSEL_MASK		(7 << 11)
+#define CM_CTRL_LCDMUXSEL_GENLCD	(1 << 11)
+#define CM_CTRL_LCDMUXSEL_VGA565_TFT555	(2 << 11)
+#define CM_CTRL_LCDMUXSEL_SHARPLCD	(3 << 11)
+#define CM_CTRL_LCDMUXSEL_VGA555_TFT555	(4 << 11)
+#define CM_CTRL_LCDEN0			(1 << 14)
+#define CM_CTRL_LCDEN1			(1 << 15)
+#define CM_CTRL_STATIC1			(1 << 16)
+#define CM_CTRL_STATIC2			(1 << 17)
+#define CM_CTRL_STATIC			(1 << 18)
+#define CM_CTRL_n24BITEN		(1 << 19)
+#define CM_CTRL_EBIWP			(1 << 20)
diff --git a/arch/arm/mach-integrator/core.c b/arch/arm/mach-integrator/core.c
index dd85cc9d234c..00ddf20ed91b 100644
--- a/arch/arm/mach-integrator/core.c
+++ b/arch/arm/mach-integrator/core.c
@@ -22,18 +22,21 @@
 #include <linux/amba/serial.h>
 #include <linux/io.h>
 #include <linux/stat.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
 
 #include <mach/hardware.h>
 #include <mach/platform.h>
-#include <mach/cm.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/time.h>
 #include <asm/pgtable.h>
 
+#include "cm.h"
 #include "common.h"
 
 static DEFINE_RAW_SPINLOCK(cm_lock);
+static void __iomem *cm_base;
 
 /**
  * cm_get - get the value from the CM_CTRL register
@@ -54,12 +57,80 @@ void cm_control(u32 mask, u32 set)
 	u32 val;
 
 	raw_spin_lock_irqsave(&cm_lock, flags);
-	val = readl(CM_CTRL) & ~mask;
-	writel(val | set, CM_CTRL);
+	val = readl(cm_base + INTEGRATOR_HDR_CTRL_OFFSET) & ~mask;
+	writel(val | set, cm_base + INTEGRATOR_HDR_CTRL_OFFSET);
 	raw_spin_unlock_irqrestore(&cm_lock, flags);
 }
 
-EXPORT_SYMBOL(cm_control);
+static const char *integrator_arch_str(u32 id)
+{
+	switch ((id >> 16) & 0xff) {
+	case 0x00:
+		return "ASB little-endian";
+	case 0x01:
+		return "AHB little-endian";
+	case 0x03:
+		return "AHB-Lite system bus, bi-endian";
+	case 0x04:
+		return "AHB";
+	case 0x08:
+		return "AHB system bus, ASB processor bus";
+	default:
+		return "Unknown";
+	}
+}
+
+static const char *integrator_fpga_str(u32 id)
+{
+	switch ((id >> 12) & 0xf) {
+	case 0x01:
+		return "XC4062";
+	case 0x02:
+		return "XC4085";
+	case 0x03:
+		return "XVC600";
+	case 0x04:
+		return "EPM7256AE (Altera PLD)";
+	default:
+		return "Unknown";
+	}
+}
+
+void cm_clear_irqs(void)
+{
+	/* disable core module IRQs */
+	writel(0xffffffffU, cm_base + INTEGRATOR_HDR_IC_OFFSET +
+		IRQ_ENABLE_CLEAR);
+}
+
+static const struct of_device_id cm_match[] = {
+	{ .compatible = "arm,core-module-integrator"},
+	{ },
+};
+
+void cm_init(void)
+{
+	struct device_node *cm = of_find_matching_node(NULL, cm_match);
+	u32 val;
+
+	if (!cm) {
+		pr_crit("no core module node found in device tree\n");
+		return;
+	}
+	cm_base = of_iomap(cm, 0);
+	if (!cm_base) {
+		pr_crit("could not remap core module\n");
+		return;
+	}
+	cm_clear_irqs();
+	val = readl(cm_base + INTEGRATOR_HDR_ID_OFFSET);
+	pr_info("Detected ARM core module:\n");
+	pr_info("    Manufacturer: %02x\n", (val >> 24));
+	pr_info("    Architecture: %s\n", integrator_arch_str(val));
+	pr_info("    FPGA: %s\n", integrator_fpga_str(val));
+	pr_info("    Build: %02x\n", (val >> 4) & 0xFF);
+	pr_info("    Rev: %c\n", ('A' + (val & 0x03)));
+}
 
 /*
  * We need to stop things allocating the low memory; ideally we need a
@@ -95,27 +166,7 @@ static ssize_t intcp_get_arch(struct device *dev,
 			      struct device_attribute *attr,
 			      char *buf)
 {
-	const char *arch;
-
-	switch ((integrator_id >> 16) & 0xff) {
-	case 0x00:
-		arch = "ASB little-endian";
-		break;
-	case 0x01:
-		arch = "AHB little-endian";
-		break;
-	case 0x03:
-		arch = "AHB-Lite system bus, bi-endian";
-		break;
-	case 0x04:
-		arch = "AHB";
-		break;
-	default:
-		arch = "Unknown";
-		break;
-	}
-
-	return sprintf(buf, "%s\n", arch);
+	return sprintf(buf, "%s\n", integrator_arch_str(integrator_id));
 }
 
 static struct device_attribute intcp_arch_attr =
@@ -125,24 +176,7 @@ static ssize_t intcp_get_fpga(struct device *dev,
 			      struct device_attribute *attr,
 			      char *buf)
 {
-	const char *fpga;
-
-	switch ((integrator_id >> 12) & 0xf) {
-	case 0x01:
-		fpga = "XC4062";
-		break;
-	case 0x02:
-		fpga = "XC4085";
-		break;
-	case 0x04:
-		fpga = "EPM7256AE (Altera PLD)";
-		break;
-	default:
-		fpga = "Unknown";
-		break;
-	}
-
-	return sprintf(buf, "%s\n", fpga);
+	return sprintf(buf, "%s\n", integrator_fpga_str(integrator_id));
 }
 
 static struct device_attribute intcp_fpga_attr =
diff --git a/arch/arm/mach-integrator/include/mach/cm.h b/arch/arm/mach-integrator/include/mach/cm.h
deleted file mode 100644
index ae6085f1db19..000000000000
--- a/arch/arm/mach-integrator/include/mach/cm.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * access the core module control register.
- */
-u32 cm_get(void);
-void cm_control(u32, u32);
-
-#define CM_CTRL	__io_address(INTEGRATOR_HDR_CTRL)
-
-#define CM_CTRL_LED			(1 << 0)
-#define CM_CTRL_nMBDET			(1 << 1)
-#define CM_CTRL_REMAP			(1 << 2)
-#define CM_CTRL_RESET			(1 << 3)
-
-/*
- * Integrator/AP,PP2 specific
- */
-#define CM_CTRL_HIGHVECTORS		(1 << 4)
-#define CM_CTRL_BIGENDIAN		(1 << 5)
-#define CM_CTRL_FASTBUS			(1 << 6)
-#define CM_CTRL_SYNC			(1 << 7)
-
-/*
- * ARM926/946/966 Integrator/CP specific
- */
-#define CM_CTRL_LCDBIASEN		(1 << 8)
-#define CM_CTRL_LCDBIASUP		(1 << 9)
-#define CM_CTRL_LCDBIASDN		(1 << 10)
-#define CM_CTRL_LCDMUXSEL_MASK		(7 << 11)
-#define CM_CTRL_LCDMUXSEL_GENLCD	(1 << 11)
-#define CM_CTRL_LCDMUXSEL_VGA565_TFT555	(2 << 11)
-#define CM_CTRL_LCDMUXSEL_SHARPLCD	(3 << 11)
-#define CM_CTRL_LCDMUXSEL_VGA555_TFT555	(4 << 11)
-#define CM_CTRL_LCDEN0			(1 << 14)
-#define CM_CTRL_LCDEN1			(1 << 15)
-#define CM_CTRL_STATIC1			(1 << 16)
-#define CM_CTRL_STATIC2			(1 << 17)
-#define CM_CTRL_STATIC			(1 << 18)
-#define CM_CTRL_n24BITEN		(1 << 19)
-#define CM_CTRL_EBIWP			(1 << 20)
diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c
index 88a62a5febc2..ece47556afe6 100644
--- a/arch/arm/mach-integrator/integrator_ap.c
+++ b/arch/arm/mach-integrator/integrator_ap.c
@@ -57,6 +57,7 @@
 #include <asm/mach/map.h>
 #include <asm/mach/time.h>
 
+#include "cm.h"
 #include "common.h"
 #include "pci_v3.h"
 
@@ -145,7 +146,7 @@ static int irq_suspend(void)
 static void irq_resume(void)
 {
 	/* disable all irq sources */
-	writel(-1, VA_CMIC_BASE + IRQ_ENABLE_CLEAR);
+	cm_clear_irqs();
 	writel(-1, VA_IC_BASE + IRQ_ENABLE_CLEAR);
 	writel(-1, VA_IC_BASE + FIQ_ENABLE_CLEAR);
 
@@ -447,8 +448,7 @@ static const struct of_device_id fpga_irq_of_match[] __initconst = {
 
 static void __init ap_init_irq_of(void)
 {
-	/* disable core module IRQs */
-	writel(0xffffffffU, VA_CMIC_BASE + IRQ_ENABLE_CLEAR);
+	cm_init();
 	of_irq_init(fpga_irq_of_match);
 	integrator_clk_init(false);
 }
diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c
index 26b344197560..422c3f9b4163 100644
--- a/arch/arm/mach-integrator/integrator_cp.c
+++ b/arch/arm/mach-integrator/integrator_cp.c
@@ -36,7 +36,6 @@
 #include <asm/hardware/arm_timer.h>
 #include <asm/hardware/icst.h>
 
-#include <mach/cm.h>
 #include <mach/lm.h>
 
 #include <asm/mach/arch.h>
@@ -49,6 +48,7 @@
 #include <plat/clcd.h>
 #include <plat/sched_clock.h>
 
+#include "cm.h"
 #include "common.h"
 
 /* Base address to the CP controller */
@@ -255,6 +255,7 @@ static const struct of_device_id fpga_irq_of_match[] __initconst = {
 
 static void __init intcp_init_irq_of(void)
 {
+	cm_init();
 	of_irq_init(fpga_irq_of_match);
 	integrator_clk_init(true);
 }
diff --git a/arch/arm/mach-integrator/leds.c b/arch/arm/mach-integrator/leds.c
index ed82535845f7..cb6ac58f5e07 100644
--- a/arch/arm/mach-integrator/leds.c
+++ b/arch/arm/mach-integrator/leds.c
@@ -11,10 +11,11 @@
 #include <linux/slab.h>
 #include <linux/leds.h>
 
-#include <mach/cm.h>
 #include <mach/hardware.h>
 #include <mach/platform.h>
 
+#include "cm.h"
+
 #if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
 
 #define ALPHA_REG __io_address(INTEGRATOR_DBG_BASE)
-- 
cgit 


From bdac7eacc43d2e4f2e2b9d5e70050138f5d07d62 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Mon, 17 Jun 2013 22:52:32 +0200
Subject: cpufreq: probe the Integrator cpufreq driver from DT

This makes the Integrator cpufreq driver probe from the core
module device tree node through it's registered platforms
device, getting the memory base from the device tree,
remapping it and removing dependencies to <mach/platform.h>
and <mach/hardware.h> by moving the two affected CM
register offsets into the driver.

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/cpufreq/integrator-cpufreq.c | 61 +++++++++++++++++++++++++-----------
 1 file changed, 43 insertions(+), 18 deletions(-)

diff --git a/drivers/cpufreq/integrator-cpufreq.c b/drivers/cpufreq/integrator-cpufreq.c
index f7c99df0880b..3d79bca47433 100644
--- a/drivers/cpufreq/integrator-cpufreq.c
+++ b/drivers/cpufreq/integrator-cpufreq.c
@@ -15,18 +15,19 @@
 #include <linux/smp.h>
 #include <linux/init.h>
 #include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
 
-#include <mach/hardware.h>
-#include <mach/platform.h>
 #include <asm/mach-types.h>
 #include <asm/hardware/icst.h>
 
-static struct cpufreq_driver integrator_driver;
+static void __iomem *cm_base;
+/* The cpufreq driver only use the OSC register */
+#define INTEGRATOR_HDR_OSC_OFFSET       0x08
+#define INTEGRATOR_HDR_LOCK_OFFSET      0x14
 
-#define CM_ID  	__io_address(INTEGRATOR_HDR_ID)
-#define CM_OSC	__io_address(INTEGRATOR_HDR_OSC)
-#define CM_STAT __io_address(INTEGRATOR_HDR_STAT)
-#define CM_LOCK __io_address(INTEGRATOR_HDR_LOCK)
+static struct cpufreq_driver integrator_driver;
 
 static const struct icst_params lclk_params = {
 	.ref		= 24000000,
@@ -100,7 +101,7 @@ static int integrator_set_target(struct cpufreq_policy *policy,
 	BUG_ON(cpu != smp_processor_id());
 
 	/* get current setting */
-	cm_osc = __raw_readl(CM_OSC);
+	cm_osc = __raw_readl(cm_base + INTEGRATOR_HDR_OSC_OFFSET);
 
 	if (machine_is_integrator()) {
 		vco.s = (cm_osc >> 8) & 7;
@@ -128,7 +129,7 @@ static int integrator_set_target(struct cpufreq_policy *policy,
 
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
 
-	cm_osc = __raw_readl(CM_OSC);
+	cm_osc = __raw_readl(cm_base + INTEGRATOR_HDR_OSC_OFFSET);
 
 	if (machine_is_integrator()) {
 		cm_osc &= 0xfffff800;
@@ -138,9 +139,9 @@ static int integrator_set_target(struct cpufreq_policy *policy,
 	}
 	cm_osc |= vco.v;
 
-	__raw_writel(0xa05f, CM_LOCK);
-	__raw_writel(cm_osc, CM_OSC);
-	__raw_writel(0, CM_LOCK);
+	__raw_writel(0xa05f, cm_base + INTEGRATOR_HDR_LOCK_OFFSET);
+	__raw_writel(cm_osc, cm_base + INTEGRATOR_HDR_OSC_OFFSET);
+	__raw_writel(0, cm_base + INTEGRATOR_HDR_LOCK_OFFSET);
 
 	/*
 	 * Restore the CPUs allowed mask.
@@ -165,7 +166,7 @@ static unsigned int integrator_get(unsigned int cpu)
 	BUG_ON(cpu != smp_processor_id());
 
 	/* detect memory etc. */
-	cm_osc = __raw_readl(CM_OSC);
+	cm_osc = __raw_readl(cm_base + INTEGRATOR_HDR_OSC_OFFSET);
 
 	if (machine_is_integrator()) {
 		vco.s = (cm_osc >> 8) & 7;
@@ -202,19 +203,43 @@ static struct cpufreq_driver integrator_driver = {
 	.name		= "integrator",
 };
 
-static int __init integrator_cpu_init(void)
+static int __init integrator_cpufreq_probe(struct platform_device *pdev)
 {
+	struct resource *res;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+        if (!res)
+		return -ENODEV;
+
+	cm_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
+	if (!cm_base)
+		return -ENODEV;
+
 	return cpufreq_register_driver(&integrator_driver);
 }
 
-static void __exit integrator_cpu_exit(void)
+static void __exit integrator_cpufreq_remove(struct platform_device *pdev)
 {
 	cpufreq_unregister_driver(&integrator_driver);
 }
 
+static const struct of_device_id integrator_cpufreq_match[] = {
+	{ .compatible = "arm,core-module-integrator"},
+	{ },
+};
+
+static struct platform_driver integrator_cpufreq_driver = {
+	.driver = {
+		.name = "integrator-cpufreq",
+		.owner = THIS_MODULE,
+		.of_match_table = integrator_cpufreq_match,
+	},
+	.remove = __exit_p(integrator_cpufreq_remove),
+};
+
+module_platform_driver_probe(integrator_cpufreq_driver,
+			     integrator_cpufreq_probe);
+
 MODULE_AUTHOR ("Russell M. King");
 MODULE_DESCRIPTION ("cpufreq driver for ARM Integrator CPUs");
 MODULE_LICENSE ("GPL");
-
-module_init(integrator_cpu_init);
-module_exit(integrator_cpu_exit);
-- 
cgit 


From 99d14a1d9b876c9847608983606fa1928f5bf8f3 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Thu, 10 Oct 2013 16:51:28 +0200
Subject: ARM: integrator: use devm_ioremap() to remap CM

In the PCIv3 driver, use devm_ioremap() instead of just ioremap()
when remapping the system controller in the PCIv3 driver, so
the mapping will be automatically released on probe failure.

Reported-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-integrator/pci_v3.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c
index ce8d0cafb7cf..c9c5a33bc802 100644
--- a/arch/arm/mach-integrator/pci_v3.c
+++ b/arch/arm/mach-integrator/pci_v3.c
@@ -842,7 +842,7 @@ static int __init pci_v3_probe(struct platform_device *pdev)
 	int irq, ret;
 
 	/* Remap the Integrator system controller */
-	ap_syscon_base = ioremap(INTEGRATOR_SC_BASE, 0x100);
+	ap_syscon_base = devm_ioremap(&pdev->dev, INTEGRATOR_SC_BASE, 0x100);
 	if (!ap_syscon_base) {
 		dev_err(&pdev->dev, "unable to remap the AP syscon for PCIv3\n");
 		return -ENODEV;
-- 
cgit 


From df36680f1a71eef97685c30eb9eaf55a6813b6cd Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Thu, 10 Oct 2013 18:24:58 +0200
Subject: ARM: integrator: core module registers from compatible strings

This augments the core machine code for the Integrator platforms
to get their references to the core module device nodes by
using compatible strings instead of predefined node names
and rename the CP syscon node to be simply "syscon".

Reported-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 Documentation/devicetree/bindings/arm/arm-boards | 30 ++++++++++++++----------
 arch/arm/boot/dts/integratorap.dts               |  2 +-
 arch/arm/boot/dts/integratorcp.dts               |  4 ++--
 arch/arm/mach-integrator/integrator_ap.c         |  8 ++++++-
 arch/arm/mach-integrator/integrator_cp.c         |  8 ++++++-
 5 files changed, 34 insertions(+), 18 deletions(-)

diff --git a/Documentation/devicetree/bindings/arm/arm-boards b/Documentation/devicetree/bindings/arm/arm-boards
index 0ebf3d94e8bf..5fac246a9530 100644
--- a/Documentation/devicetree/bindings/arm/arm-boards
+++ b/Documentation/devicetree/bindings/arm/arm-boards
@@ -19,18 +19,22 @@ Required nodes:
   - regs: the location and size of the core module registers, one
     range of 0x200 bytes.
 
-- cpcon/syscon: the root node the Integrator/CP must have a /cpcon
-  node pointing to the CP control registers, and the Integrator/AP
-  must have a /syscon node pointing to the Integrator/AP system
-  controller. The AP syscon node must include the logical module
-  interrupts.
-
-In the root node the Integrator/CP must have a /cpcon node pointing
-to the CP control registers, and the Integrator/AP must have a
-/syscon node pointing to the Integrator/AP system controller.
-The AP syscon node must include the logic module interrupts, stated
-in order of module instance <module 0, module 1, module 2 ...>
-example:
+- syscon: the root node of the Integrator platforms must have a
+  system controller node pointong to the control registers,
+  with the compatible string
+  "arm,integrator-ap-syscon"
+  "arm,integrator-cp-syscon"
+  respectively.
+
+  Required properties for the system controller:
+  - regs: the location and size of the system controller registers,
+    one range of 0x100 bytes.
+
+  Required properties for the AP system controller:
+  - interrupts: the AP syscon node must include the logical module
+    interrupts, stated in order of module instance <module 0>,
+    <module 1>, <module 2> ... for the CP system controller this
+    is not required not of any use.
 
 /dts-v1/;
 /include/ "integrator.dtsi"
@@ -45,7 +49,7 @@ example:
 	};
 
 	syscon {
-		/* AP system controller registers */
+		compatible = "arm,integrator-ap-syscon";
 		reg = <0x11000000 0x100>;
 		interrupt-parent = <&pic>;
 		/* These are the logic module IRQs */
diff --git a/arch/arm/boot/dts/integratorap.dts b/arch/arm/boot/dts/integratorap.dts
index 453ab0ea4d2b..e6be9315ff0a 100644
--- a/arch/arm/boot/dts/integratorap.dts
+++ b/arch/arm/boot/dts/integratorap.dts
@@ -19,7 +19,7 @@
 	};
 
 	syscon {
-		/* AP system controller registers */
+		compatible = "arm,integrator-ap-syscon";
 		reg = <0x11000000 0x100>;
 		interrupt-parent = <&pic>;
 		/* These are the logical module IRQs */
diff --git a/arch/arm/boot/dts/integratorcp.dts b/arch/arm/boot/dts/integratorcp.dts
index ff1aea0ee043..a3a06b893237 100644
--- a/arch/arm/boot/dts/integratorcp.dts
+++ b/arch/arm/boot/dts/integratorcp.dts
@@ -18,8 +18,8 @@
 		bootargs = "root=/dev/ram0 console=ttyAMA0,38400n8 earlyprintk";
 	};
 
-	cpcon {
-		/* CP controller registers */
+	syscon {
+		compatible = "arm,integrator-cp-syscon";
 		reg = <0xcb000000 0x100>;
 	};
 
diff --git a/arch/arm/mach-integrator/integrator_ap.c b/arch/arm/mach-integrator/integrator_ap.c
index ece47556afe6..d50dc2dbfd89 100644
--- a/arch/arm/mach-integrator/integrator_ap.c
+++ b/arch/arm/mach-integrator/integrator_ap.c
@@ -470,6 +470,11 @@ static struct of_dev_auxdata ap_auxdata_lookup[] __initdata = {
 	{ /* sentinel */ },
 };
 
+static const struct of_device_id ap_syscon_match[] = {
+	{ .compatible = "arm,integrator-ap-syscon"},
+	{ },
+};
+
 static void __init ap_init_of(void)
 {
 	unsigned long sc_dec;
@@ -486,7 +491,8 @@ static void __init ap_init_of(void)
 	root = of_find_node_by_path("/");
 	if (!root)
 		return;
-	syscon = of_find_node_by_path("/syscon");
+
+	syscon = of_find_matching_node(root, ap_syscon_match);
 	if (!syscon)
 		return;
 
diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c
index 422c3f9b4163..1df6e7602cad 100644
--- a/arch/arm/mach-integrator/integrator_cp.c
+++ b/arch/arm/mach-integrator/integrator_cp.c
@@ -286,6 +286,11 @@ static struct of_dev_auxdata intcp_auxdata_lookup[] __initdata = {
 	{ /* sentinel */ },
 };
 
+static const struct of_device_id intcp_syscon_match[] = {
+	{ .compatible = "arm,integrator-cp-syscon"},
+	{ },
+};
+
 static void __init intcp_init_of(void)
 {
 	struct device_node *root;
@@ -300,7 +305,8 @@ static void __init intcp_init_of(void)
 	root = of_find_node_by_path("/");
 	if (!root)
 		return;
-	cpcon = of_find_node_by_path("/cpcon");
+
+	cpcon = of_find_matching_node(root, intcp_syscon_match);
 	if (!cpcon)
 		return;
 
-- 
cgit 


From 7c3f2ab7b844f1a859afbc3d41925e8a0faba5fa Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Tue, 15 Oct 2013 12:35:07 +0200
Subject: sched/rt: Add missing rmb()

While discussing the proposed SCHED_DEADLINE patches which in parts
mimic the existing FIFO code it was noticed that the wmb in
rt_set_overloaded() didn't have a matching barrier.

The only site using rt_overloaded() to test the rto_count is
pull_rt_task() and we should issue a matching rmb before then assuming
there's an rto_mask bit set.

Without that smp_rmb() in there we could actually miss seeing the
rto_mask bit.

Also, change to using smp_[wr]mb(), even though this is SMP only code;
memory barriers without smp_ always make me think they're against
hardware of some sort.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: vincent.guittot@linaro.org
Cc: luca.abeni@unitn.it
Cc: bruce.ashfield@windriver.com
Cc: dhaval.giani@gmail.com
Cc: rostedt@goodmis.org
Cc: hgu1972@gmail.com
Cc: oleg@redhat.com
Cc: fweisbec@gmail.com
Cc: darren@dvhart.com
Cc: johan.eker@ericsson.com
Cc: p.faure@akatech.ch
Cc: paulmck@linux.vnet.ibm.com
Cc: raistlin@linux.it
Cc: claudio@evidence.eu.com
Cc: insop.song@gmail.com
Cc: michael@amarulasolutions.com
Cc: liming.wang@windriver.com
Cc: fchecconi@gmail.com
Cc: jkacur@redhat.com
Cc: tommaso.cucinotta@sssup.it
Cc: Juri Lelli <juri.lelli@gmail.com>
Cc: harald.gustafsson@ericsson.com
Cc: nicola.manica@disi.unitn.it
Cc: tglx@linutronix.de
Link: http://lkml.kernel.org/r/20131015103507.GF10651@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/rt.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index e9304cdc26fe..a848f526b941 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -246,8 +246,10 @@ static inline void rt_set_overload(struct rq *rq)
 	 * if we should look at the mask. It would be a shame
 	 * if we looked at the mask, but the mask was not
 	 * updated yet.
+	 *
+	 * Matched by the barrier in pull_rt_task().
 	 */
-	wmb();
+	smp_wmb();
 	atomic_inc(&rq->rd->rto_count);
 }
 
@@ -1626,6 +1628,12 @@ static int pull_rt_task(struct rq *this_rq)
 	if (likely(!rt_overloaded(this_rq)))
 		return 0;
 
+	/*
+	 * Match the barrier from rt_set_overloaded; this guarantees that if we
+	 * see overloaded we must also see the rto_mask bit.
+	 */
+	smp_rmb();
+
 	for_each_cpu(cpu, this_rq->rd->rto_mask) {
 		if (this_cpu == cpu)
 			continue;
-- 
cgit 


From 746023159c40c523b08a3bc3d213dac212385895 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 10 Oct 2013 20:17:22 +0200
Subject: sched: Fix race in migrate_swap_stop()

There is a subtle race in migrate_swap, when task P, on CPU A, decides to swap
places with task T, on CPU B.

Task P:
  - call migrate_swap
Task T:
  - go to sleep, removing itself from the runqueue
Task P:
  - double lock the runqueues on CPU A & B
Task T:
  - get woken up, place itself on the runqueue of CPU C
Task P:
  - see that task T is on a runqueue, and pretend to remove it
    from the runqueue on CPU B

Now CPUs B & C both have corrupted scheduler data structures.

This patch fixes it, by holding the pi_lock for both of the tasks
involved in the migrate swap. This prevents task T from waking up,
and placing itself onto another runqueue, until after migrate_swap
has released all locks.

This means that, when migrate_swap checks, task T will be either
on the runqueue where it was originally seen, or not on any
runqueue at all. Migrate_swap deals correctly with of those cases.

Tested-by: Joe Mario <jmario@redhat.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: hannes@cmpxchg.org
Cc: aarcange@redhat.com
Cc: srikar@linux.vnet.ibm.com
Cc: tglx@linutronix.de
Cc: hpa@zytor.com
Link: http://lkml.kernel.org/r/20131010181722.GO13848@laptop.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/core.c  |  4 ++++
 kernel/sched/fair.c  |  9 ---------
 kernel/sched/sched.h | 18 ++++++++++++++++++
 3 files changed, 22 insertions(+), 9 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 0c3feebcf112..a972acd468b0 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1049,6 +1049,8 @@ static int migrate_swap_stop(void *data)
 	src_rq = cpu_rq(arg->src_cpu);
 	dst_rq = cpu_rq(arg->dst_cpu);
 
+	double_raw_lock(&arg->src_task->pi_lock,
+			&arg->dst_task->pi_lock);
 	double_rq_lock(src_rq, dst_rq);
 	if (task_cpu(arg->dst_task) != arg->dst_cpu)
 		goto unlock;
@@ -1069,6 +1071,8 @@ static int migrate_swap_stop(void *data)
 
 unlock:
 	double_rq_unlock(src_rq, dst_rq);
+	raw_spin_unlock(&arg->dst_task->pi_lock);
+	raw_spin_unlock(&arg->src_task->pi_lock);
 
 	return ret;
 }
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 4aa0b10889d0..813dd61a9b43 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1448,15 +1448,6 @@ static inline void put_numa_group(struct numa_group *grp)
 		kfree_rcu(grp, rcu);
 }
 
-static void double_lock(spinlock_t *l1, spinlock_t *l2)
-{
-	if (l1 > l2)
-		swap(l1, l2);
-
-	spin_lock(l1);
-	spin_lock_nested(l2, SINGLE_DEPTH_NESTING);
-}
-
 static void task_numa_group(struct task_struct *p, int cpupid, int flags,
 			int *priv)
 {
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index d69cb325c27e..ffc708717b70 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1249,6 +1249,24 @@ static inline void double_unlock_balance(struct rq *this_rq, struct rq *busiest)
 	lock_set_subclass(&this_rq->lock.dep_map, 0, _RET_IP_);
 }
 
+static inline void double_lock(spinlock_t *l1, spinlock_t *l2)
+{
+	if (l1 > l2)
+		swap(l1, l2);
+
+	spin_lock(l1);
+	spin_lock_nested(l2, SINGLE_DEPTH_NESTING);
+}
+
+static inline void double_raw_lock(raw_spinlock_t *l1, raw_spinlock_t *l2)
+{
+	if (l1 > l2)
+		swap(l1, l2);
+
+	raw_spin_lock(l1);
+	raw_spin_lock_nested(l2, SINGLE_DEPTH_NESTING);
+}
+
 /*
  * double_rq_lock - safely lock two runqueues
  *
-- 
cgit 


From 6acce3ef84520537f8a09a12c9ddbe814a584dd2 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Fri, 11 Oct 2013 14:38:20 +0200
Subject: sched: Remove get_online_cpus() usage

Remove get_online_cpus() usage from the scheduler; there's 4 sites that
use it:

 - sched_init_smp(); where its completely superfluous since we're in
   'early' boot and there simply cannot be any hotplugging.

 - sched_getaffinity(); we already take a raw spinlock to protect the
   task cpus_allowed mask, this disables preemption and therefore
   also stabilizes cpu_online_mask as that's modified using
   stop_machine. However switch to active mask for symmetry with
   sched_setaffinity()/set_cpus_allowed_ptr(). We guarantee active
   mask stability by inserting sync_rcu/sched() into _cpu_down.

 - sched_setaffinity(); we don't appear to need get_online_cpus()
   either, there's two sites where hotplug appears relevant:
    * cpuset_cpus_allowed(); for the !cpuset case we use possible_mask,
      for the cpuset case we hold task_lock, which is a spinlock and
      thus for mainline disables preemption (might cause pain on RT).
    * set_cpus_allowed_ptr(); Holds all scheduler locks and thus has
      preemption properly disabled; also it already deals with hotplug
      races explicitly where it releases them.

 - migrate_swap(); we can make stop_two_cpus() do the heavy lifting for
   us with a little trickery. By adding a sync_sched/rcu() after the
   CPU_DOWN_PREPARE notifier we can provide preempt/rcu guarantees for
   cpu_active_mask. Use these to validate that both our cpus are active
   when queueing the stop work before we queue the stop_machine works
   for take_cpu_down().

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
Cc: Paul McKenney <paulmck@linux.vnet.ibm.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Link: http://lkml.kernel.org/r/20131011123820.GV3081@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/cpu.c          | 17 +++++++++++++++++
 kernel/sched/core.c   | 20 ++++++++++----------
 kernel/stop_machine.c | 26 +++++++++++++++++++++-----
 3 files changed, 48 insertions(+), 15 deletions(-)

diff --git a/kernel/cpu.c b/kernel/cpu.c
index d7f07a2da5a6..63aa50d7ce1e 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -308,6 +308,23 @@ static int __ref _cpu_down(unsigned int cpu, int tasks_frozen)
 	}
 	smpboot_park_threads(cpu);
 
+	/*
+	 * By now we've cleared cpu_active_mask, wait for all preempt-disabled
+	 * and RCU users of this state to go away such that all new such users
+	 * will observe it.
+	 *
+	 * For CONFIG_PREEMPT we have preemptible RCU and its sync_rcu() might
+	 * not imply sync_sched(), so explicitly call both.
+	 */
+#ifdef CONFIG_PREEMPT
+	synchronize_sched();
+#endif
+	synchronize_rcu();
+
+	/*
+	 * So now all preempt/rcu users must observe !cpu_active().
+	 */
+
 	err = __stop_machine(take_cpu_down, &tcd_param, cpumask_of(cpu));
 	if (err) {
 		/* CPU didn't die: tell everyone.  Can't complain. */
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index a972acd468b0..c06b8d345fae 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1085,8 +1085,6 @@ int migrate_swap(struct task_struct *cur, struct task_struct *p)
 	struct migration_swap_arg arg;
 	int ret = -EINVAL;
 
-	get_online_cpus();
-
 	arg = (struct migration_swap_arg){
 		.src_task = cur,
 		.src_cpu = task_cpu(cur),
@@ -1097,6 +1095,10 @@ int migrate_swap(struct task_struct *cur, struct task_struct *p)
 	if (arg.src_cpu == arg.dst_cpu)
 		goto out;
 
+	/*
+	 * These three tests are all lockless; this is OK since all of them
+	 * will be re-checked with proper locks held further down the line.
+	 */
 	if (!cpu_active(arg.src_cpu) || !cpu_active(arg.dst_cpu))
 		goto out;
 
@@ -1109,7 +1111,6 @@ int migrate_swap(struct task_struct *cur, struct task_struct *p)
 	ret = stop_two_cpus(arg.dst_cpu, arg.src_cpu, migrate_swap_stop, &arg);
 
 out:
-	put_online_cpus();
 	return ret;
 }
 
@@ -3710,7 +3711,6 @@ long sched_setaffinity(pid_t pid, const struct cpumask *in_mask)
 	struct task_struct *p;
 	int retval;
 
-	get_online_cpus();
 	rcu_read_lock();
 
 	p = find_process_by_pid(pid);
@@ -3773,7 +3773,6 @@ out_free_cpus_allowed:
 	free_cpumask_var(cpus_allowed);
 out_put_task:
 	put_task_struct(p);
-	put_online_cpus();
 	return retval;
 }
 
@@ -3818,7 +3817,6 @@ long sched_getaffinity(pid_t pid, struct cpumask *mask)
 	unsigned long flags;
 	int retval;
 
-	get_online_cpus();
 	rcu_read_lock();
 
 	retval = -ESRCH;
@@ -3831,12 +3829,11 @@ long sched_getaffinity(pid_t pid, struct cpumask *mask)
 		goto out_unlock;
 
 	raw_spin_lock_irqsave(&p->pi_lock, flags);
-	cpumask_and(mask, &p->cpus_allowed, cpu_online_mask);
+	cpumask_and(mask, &p->cpus_allowed, cpu_active_mask);
 	raw_spin_unlock_irqrestore(&p->pi_lock, flags);
 
 out_unlock:
 	rcu_read_unlock();
-	put_online_cpus();
 
 	return retval;
 }
@@ -6494,14 +6491,17 @@ void __init sched_init_smp(void)
 
 	sched_init_numa();
 
-	get_online_cpus();
+	/*
+	 * There's no userspace yet to cause hotplug operations; hence all the
+	 * cpu masks are stable and all blatant races in the below code cannot
+	 * happen.
+	 */
 	mutex_lock(&sched_domains_mutex);
 	init_sched_domains(cpu_active_mask);
 	cpumask_andnot(non_isolated_cpus, cpu_possible_mask, cpu_isolated_map);
 	if (cpumask_empty(non_isolated_cpus))
 		cpumask_set_cpu(smp_processor_id(), non_isolated_cpus);
 	mutex_unlock(&sched_domains_mutex);
-	put_online_cpus();
 
 	hotcpu_notifier(sched_domains_numa_masks_update, CPU_PRI_SCHED_ACTIVE);
 	hotcpu_notifier(cpuset_cpu_active, CPU_PRI_CPUSET_ACTIVE);
diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
index 32a6c44d8f78..c530bc5be7cf 100644
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -234,11 +234,13 @@ static void irq_cpu_stop_queue_work(void *arg)
  */
 int stop_two_cpus(unsigned int cpu1, unsigned int cpu2, cpu_stop_fn_t fn, void *arg)
 {
-	int call_cpu;
 	struct cpu_stop_done done;
 	struct cpu_stop_work work1, work2;
 	struct irq_cpu_stop_queue_work_info call_args;
-	struct multi_stop_data msdata = {
+	struct multi_stop_data msdata;
+
+	preempt_disable();
+	msdata = (struct multi_stop_data){
 		.fn = fn,
 		.data = arg,
 		.num_threads = 2,
@@ -261,17 +263,31 @@ int stop_two_cpus(unsigned int cpu1, unsigned int cpu2, cpu_stop_fn_t fn, void *
 	cpu_stop_init_done(&done, 2);
 	set_state(&msdata, MULTI_STOP_PREPARE);
 
+	/*
+	 * If we observe both CPUs active we know _cpu_down() cannot yet have
+	 * queued its stop_machine works and therefore ours will get executed
+	 * first. Or its not either one of our CPUs that's getting unplugged,
+	 * in which case we don't care.
+	 *
+	 * This relies on the stopper workqueues to be FIFO.
+	 */
+	if (!cpu_active(cpu1) || !cpu_active(cpu2)) {
+		preempt_enable();
+		return -ENOENT;
+	}
+
 	/*
 	 * Queuing needs to be done by the lowest numbered CPU, to ensure
 	 * that works are always queued in the same order on every CPU.
 	 * This prevents deadlocks.
 	 */
-	call_cpu = min(cpu1, cpu2);
-
-	smp_call_function_single(call_cpu, &irq_cpu_stop_queue_work,
+	smp_call_function_single(min(cpu1, cpu2),
+				 &irq_cpu_stop_queue_work,
 				 &call_args, 0);
+	preempt_enable();
 
 	wait_for_completion(&done.completion);
+
 	return done.executed ? done.ret : -ENOENT;
 }
 
-- 
cgit 


From 8922915b38cd8b72f8e5af614b95be71d1d299d4 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Mon, 7 Oct 2013 20:31:06 +0200
Subject: sched/wait: Add ___wait_cond_timeout() to wait_event*_timeout() too

Commit 4c663cfc ("wait: fix false timeouts when using
wait_event_timeout()") introduced the additional condition checks
after a timeout but only in the "slow" __wait*() paths.

wait_event_timeout(wq, CONDITION, 0) still returns 0 if CONDITION
is already true and we do not call __wait*().

Now that we have ___wait_cond_timeout() we can use it instead to
ensure that __ret will be properly updated.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131007183106.GA10973@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/wait.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index a2726c7dd244..04c0260bda8f 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -270,7 +270,7 @@ do {									\
 #define wait_event_timeout(wq, condition, timeout)			\
 ({									\
 	long __ret = timeout;						\
-	if (!(condition))						\
+	if (!___wait_cond_timeout(condition))				\
 		__ret = __wait_event_timeout(wq, condition, timeout);	\
 	__ret;								\
 })
@@ -328,7 +328,7 @@ do {									\
 #define wait_event_interruptible_timeout(wq, condition, timeout)	\
 ({									\
 	long __ret = timeout;						\
-	if (!(condition))						\
+	if (!___wait_cond_timeout(condition))				\
 		__ret = __wait_event_interruptible_timeout(wq,		\
 						condition, timeout);	\
 	__ret;								\
@@ -769,7 +769,7 @@ do {									\
 						  timeout)		\
 ({									\
 	long __ret = timeout;						\
-	if (!(condition))						\
+	if (!___wait_cond_timeout(condition))				\
 		__ret = __wait_event_interruptible_lock_irq_timeout(	\
 					wq, condition, lock, timeout);	\
 	__ret;								\
-- 
cgit 


From c2d816443ef305aba8eaf0bf368f4d3d87494f06 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Mon, 7 Oct 2013 18:18:24 +0200
Subject: sched/wait: Introduce prepare_to_wait_event()

Add the new helper, prepare_to_wait_event() which should only be used
by ___wait_event().

prepare_to_wait_event() returns -ERESTARTSYS if signal_pending_state()
is true, otherwise it does prepare_to_wait/exclusive.  This allows to
uninline the signal-pending checks in wait_event*() macros.

Also, it can initialize wait->private/func. We do not care if they were
already initialized, the values are the same. This also shaves a couple
of insns from the inlined code.

This obviously makes prepare_*() path a little bit slower, but we are
likely going to sleep anyway, so I think it makes sense to shrink .text:

               text    data      bss      dec     hex  filename
            ===================================================
   before:  5126092 2959248 10117120 18202460 115bf5c   vmlinux
    after:  5124618 2955152 10117120 18196890 115a99a   vmlinux

on my build.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131007161824.GA29757@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/wait.h | 24 ++++++++++++++----------
 kernel/wait.c        | 24 ++++++++++++++++++++++++
 2 files changed, 38 insertions(+), 10 deletions(-)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index 04c0260bda8f..ec099b03e11b 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -187,27 +187,30 @@ wait_queue_head_t *bit_waitqueue(void *, int);
 	__cond || !__ret;						\
 })
 
-#define ___wait_signal_pending(state)					\
-	((state == TASK_INTERRUPTIBLE && signal_pending(current)) ||	\
-	 (state == TASK_KILLABLE && fatal_signal_pending(current)))
+#define ___wait_is_interruptible(state)					\
+	(!__builtin_constant_p(state) ||				\
+		state == TASK_INTERRUPTIBLE || state == TASK_KILLABLE)	\
 
 #define ___wait_event(wq, condition, state, exclusive, ret, cmd)	\
 ({									\
 	__label__ __out;						\
-	DEFINE_WAIT(__wait);						\
+	wait_queue_t __wait;						\
 	long __ret = ret;						\
 									\
+	INIT_LIST_HEAD(&__wait.task_list);				\
+	if (exclusive)							\
+		__wait.flags = WQ_FLAG_EXCLUSIVE;			\
+	else								\
+		__wait.flags = 0;					\
+									\
 	for (;;) {							\
-		if (exclusive)						\
-			prepare_to_wait_exclusive(&wq, &__wait, state); \
-		else							\
-			prepare_to_wait(&wq, &__wait, state);		\
+		long __int = prepare_to_wait_event(&wq, &__wait, state);\
 									\
 		if (condition)						\
 			break;						\
 									\
-		if (___wait_signal_pending(state)) {			\
-			__ret = -ERESTARTSYS;				\
+		if (___wait_is_interruptible(state) && __int) {		\
+			__ret = __int;					\
 			if (exclusive) {				\
 				abort_exclusive_wait(&wq, &__wait,	\
 						     state, NULL);	\
@@ -791,6 +794,7 @@ extern long interruptible_sleep_on_timeout(wait_queue_head_t *q, signed long tim
  */
 void prepare_to_wait(wait_queue_head_t *q, wait_queue_t *wait, int state);
 void prepare_to_wait_exclusive(wait_queue_head_t *q, wait_queue_t *wait, int state);
+long prepare_to_wait_event(wait_queue_head_t *q, wait_queue_t *wait, int state);
 void finish_wait(wait_queue_head_t *q, wait_queue_t *wait);
 void abort_exclusive_wait(wait_queue_head_t *q, wait_queue_t *wait, unsigned int mode, void *key);
 int autoremove_wake_function(wait_queue_t *wait, unsigned mode, int sync, void *key);
diff --git a/kernel/wait.c b/kernel/wait.c
index d550920e040c..de21c6305a44 100644
--- a/kernel/wait.c
+++ b/kernel/wait.c
@@ -92,6 +92,30 @@ prepare_to_wait_exclusive(wait_queue_head_t *q, wait_queue_t *wait, int state)
 }
 EXPORT_SYMBOL(prepare_to_wait_exclusive);
 
+long prepare_to_wait_event(wait_queue_head_t *q, wait_queue_t *wait, int state)
+{
+	unsigned long flags;
+
+	if (signal_pending_state(state, current))
+		return -ERESTARTSYS;
+
+	wait->private = current;
+	wait->func = autoremove_wake_function;
+
+	spin_lock_irqsave(&q->lock, flags);
+	if (list_empty(&wait->task_list)) {
+		if (wait->flags & WQ_FLAG_EXCLUSIVE)
+			__add_wait_queue_tail(q, wait);
+		else
+			__add_wait_queue(q, wait);
+	}
+	set_current_state(state);
+	spin_unlock_irqrestore(&q->lock, flags);
+
+	return 0;
+}
+EXPORT_SYMBOL(prepare_to_wait_event);
+
 /**
  * finish_wait - clean up after waiting in a queue
  * @q: waitqueue waited on
-- 
cgit 


From 78371a45dfa8f2a2f3892b983c39863a67c66b11 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Wed, 16 Oct 2013 08:25:11 -0400
Subject: ext4: fix assertion in ext4_add_complete_io()

It doesn't make sense to require io_end->handle when we are in
nojournal mode. So update the assertion accordingly to avoid false
warnings from ext4_add_complete_io().

Reported-by: Eric Whitney <enwlinux@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 fs/ext4/page-io.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index d7d0c7b46ed4..d488f80ee32d 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -197,14 +197,15 @@ static void dump_completed_IO(struct inode *inode, struct list_head *head)
 static void ext4_add_complete_io(ext4_io_end_t *io_end)
 {
 	struct ext4_inode_info *ei = EXT4_I(io_end->inode);
+	struct ext4_sb_info *sbi = EXT4_SB(io_end->inode->i_sb);
 	struct workqueue_struct *wq;
 	unsigned long flags;
 
 	/* Only reserved conversions from writeback should enter here */
 	WARN_ON(!(io_end->flag & EXT4_IO_END_UNWRITTEN));
-	WARN_ON(!io_end->handle);
+	WARN_ON(!io_end->handle && sbi->s_journal);
 	spin_lock_irqsave(&ei->i_completed_io_lock, flags);
-	wq = EXT4_SB(io_end->inode->i_sb)->rsv_conversion_wq;
+	wq = sbi->rsv_conversion_wq;
 	if (list_empty(&ei->i_rsv_conversion_list))
 		queue_work(wq, &ei->i_rsv_conversion_work);
 	list_add_tail(&io_end->list, &ei->i_rsv_conversion_list);
-- 
cgit 


From 7534e854b930a021dedf9e16396ced5e70e1aba3 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Wed, 16 Oct 2013 08:26:08 -0400
Subject: ext4: fixup kerndoc annotation of mpage_map_and_submit_extent()

Document give_up_on_write argument of mpage_map_and_submit_extent().

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 fs/ext4/inode.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index e274e9c1171f..e7e5b3d8f002 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -2178,6 +2178,9 @@ static int mpage_map_one_extent(handle_t *handle, struct mpage_da_data *mpd)
  *
  * @handle - handle for journal operations
  * @mpd - extent to map
+ * @give_up_on_write - we set this to true iff there is a fatal error and there
+ *                     is no hope of writing the data. The caller should discard
+ *                     dirty pages to avoid infinite loops.
  *
  * The function maps extent starting at mpd->lblk of length mpd->len. If it is
  * delayed, blocks are allocated, if it is unwritten, we may need to convert
-- 
cgit 


From 2046fd1873886e8c774d7c1b0961624c164e7db2 Mon Sep 17 00:00:00 2001
From: Eric Sandeen <sandeen@redhat.com>
Date: Tue, 15 Oct 2013 18:45:17 -0500
Subject: ext3: Count journal as bsddf overhead in ext3_statfs

ext4 counts journal space as bsddf overhead, but ext3 does not.

For some reason when I patched ext4 I thought I should leave
ext3 alone, but frankly it makes more sense to fix it, I think.

Otherwise we get inconsistent behavior from ext3 under ext3.ko,
and ext3 under ext4.ko, which is not at all desirable...

This is testable by xfstests shared/289, though it will need
modification because it currently special-cases ext3.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/ext3/super.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index c50c76190373..37fd31ed16e7 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -2825,6 +2825,10 @@ static int ext3_statfs (struct dentry * dentry, struct kstatfs * buf)
 		 * bitmap, and an inode table.
 		 */
 		overhead += ngroups * (2 + sbi->s_itb_per_group);
+
+		/* Add the journal blocks as well */
+                overhead += sbi->s_journal->j_maxlen;
+
 		sbi->s_overhead_last = overhead;
 		smp_wmb();
 		sbi->s_blocks_last = le32_to_cpu(es->s_blocks_count);
-- 
cgit 


From cc4827b97b0a5fec66689c0e511a94e3dad490fc Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Wed, 16 Oct 2013 15:44:45 +0300
Subject: ath10k: use workqueue to set WEP TX key

Recent WMI/HTC changes made it possible for WMI
commands to sleep (if there's not enough HTC TX
credits to submit a command). TX path is in an
atomic context so calling WMI commands in it is
wrong.

This simply moves WEP key index update to a worker
and fixes the 'scheduling while atomic' bug.

This still leaves multiple WEP key handling laggy,
i.e. some frames may be TXed with an old/different
key (although recipient should still be able to RX
them).

kvalo: changed the title

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.h |  4 ++-
 drivers/net/wireless/ath/ath10k/mac.c  | 53 +++++++++++++++++++++++-----------
 2 files changed, 39 insertions(+), 18 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index ce36daa5ff0a..cef5455853c5 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -215,8 +215,10 @@ struct ath10k_vif {
 	struct ath10k *ar;
 	struct ieee80211_vif *vif;
 
+	struct work_struct wep_key_work;
 	struct ieee80211_key_conf *wep_keys[WMI_MAX_KEY_INDEX + 1];
-	u8 def_wep_key_index;
+	u8 def_wep_key_idx;
+	u8 def_wep_key_newidx;
 
 	u16 tx_seq_no;
 
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 97d7111be721..bc0e17bb07c2 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1239,7 +1239,7 @@ static void ath10k_bss_disassoc(struct ieee80211_hw *hw,
 	/* FIXME: why don't we print error if wmi call fails? */
 	ret = ath10k_wmi_vdev_down(ar, arvif->vdev_id);
 
-	arvif->def_wep_key_index = 0;
+	arvif->def_wep_key_idx = 0;
 }
 
 static int ath10k_station_assoc(struct ath10k *ar, struct ath10k_vif *arvif,
@@ -1467,6 +1467,30 @@ static void ath10k_tx_h_qos_workaround(struct ieee80211_hw *hw,
 	skb_pull(skb, IEEE80211_QOS_CTL_LEN);
 }
 
+static void ath10k_tx_wep_key_work(struct work_struct *work)
+{
+	struct ath10k_vif *arvif = container_of(work, struct ath10k_vif,
+						wep_key_work);
+	int ret, keyidx = arvif->def_wep_key_newidx;
+
+	if (arvif->def_wep_key_idx == keyidx)
+		return;
+
+	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d set keyidx %d\n",
+		   arvif->vdev_id, keyidx);
+
+	ret = ath10k_wmi_vdev_set_param(arvif->ar,
+					arvif->vdev_id,
+					arvif->ar->wmi.vdev_param->def_keyid,
+					keyidx);
+	if (ret) {
+		ath10k_warn("could not update wep keyidx (%d)\n", ret);
+		return;
+	}
+
+	arvif->def_wep_key_idx = keyidx;
+}
+
 static void ath10k_tx_h_update_wep_key(struct sk_buff *skb)
 {
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
@@ -1475,8 +1499,6 @@ static void ath10k_tx_h_update_wep_key(struct sk_buff *skb)
 	struct ath10k *ar = arvif->ar;
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
 	struct ieee80211_key_conf *key = info->control.hw_key;
-	u32 vdev_param;
-	int ret;
 
 	if (!ieee80211_has_protected(hdr->frame_control))
 		return;
@@ -1488,21 +1510,14 @@ static void ath10k_tx_h_update_wep_key(struct sk_buff *skb)
 	    key->cipher != WLAN_CIPHER_SUITE_WEP104)
 		return;
 
-	if (key->keyidx == arvif->def_wep_key_index)
-		return;
-
-	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d keyidx %d\n",
-		   arvif->vdev_id, key->keyidx);
-
-	vdev_param = ar->wmi.vdev_param->def_keyid;
-	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
-					key->keyidx);
-	if (ret) {
-		ath10k_warn("could not update wep keyidx (%d)\n", ret);
+	if (key->keyidx == arvif->def_wep_key_idx)
 		return;
-	}
 
-	arvif->def_wep_key_index = key->keyidx;
+	/* FIXME: Most likely a few frames will be TXed with an old key. Simply
+	 * queueing frames until key index is updated is not an option because
+	 * sk_buff may need more processing to be done, e.g. offchannel */
+	arvif->def_wep_key_newidx = key->keyidx;
+	ieee80211_queue_work(ar->hw, &arvif->wep_key_work);
 }
 
 static void ath10k_tx_h_add_p2p_noa_ie(struct ath10k *ar, struct sk_buff *skb)
@@ -2023,6 +2038,8 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 	arvif->ar = ar;
 	arvif->vif = vif;
 
+	INIT_WORK(&arvif->wep_key_work, ath10k_tx_wep_key_work);
+
 	if ((vif->type == NL80211_IFTYPE_MONITOR) && ar->monitor_present) {
 		ath10k_warn("Only one monitor interface allowed\n");
 		ret = -EBUSY;
@@ -2078,7 +2095,7 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 
 	vdev_param = ar->wmi.vdev_param->def_keyid;
 	ret = ath10k_wmi_vdev_set_param(ar, 0, vdev_param,
-					arvif->def_wep_key_index);
+					arvif->def_wep_key_idx);
 	if (ret)
 		ath10k_warn("Failed to set default keyid: %d\n", ret);
 
@@ -2147,6 +2164,8 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
 
 	mutex_lock(&ar->conf_mutex);
 
+	cancel_work_sync(&arvif->wep_key_work);
+
 	spin_lock_bh(&ar->data_lock);
 	if (arvif->beacon) {
 		dev_kfree_skb_any(arvif->beacon);
-- 
cgit 


From 9dad14ae289ec676b9f8a2ee00a3fa18c51c683a Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Wed, 16 Oct 2013 15:44:45 +0300
Subject: ath10k: fix add_interface failure handling

If something failed along add_interface() setup it
was possible to leak a vdev id, vdev and peer.

This could end up with leaked FW state or FW crash
(assuming add_interface() failure wasn't a result of
a crash).

kvalo: rebased, whitespace fixes

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c | 53 ++++++++++++++++++++++++++---------
 1 file changed, 40 insertions(+), 13 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index bc0e17bb07c2..16e55bd22fc2 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2043,18 +2043,17 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 	if ((vif->type == NL80211_IFTYPE_MONITOR) && ar->monitor_present) {
 		ath10k_warn("Only one monitor interface allowed\n");
 		ret = -EBUSY;
-		goto exit;
+		goto err;
 	}
 
 	bit = ffs(ar->free_vdev_map);
 	if (bit == 0) {
 		ret = -EBUSY;
-		goto exit;
+		goto err;
 	}
 
 	arvif->vdev_id = bit - 1;
 	arvif->vdev_subtype = WMI_VDEV_SUBTYPE_NONE;
-	ar->free_vdev_map &= ~(1 << arvif->vdev_id);
 
 	if (ar->p2p)
 		arvif->vdev_subtype = WMI_VDEV_SUBTYPE_P2P_DEVICE;
@@ -2090,27 +2089,33 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 				     arvif->vdev_subtype, vif->addr);
 	if (ret) {
 		ath10k_warn("WMI vdev create failed: ret %d\n", ret);
-		goto exit;
+		goto err;
 	}
 
+	ar->free_vdev_map &= ~BIT(arvif->vdev_id);
+
 	vdev_param = ar->wmi.vdev_param->def_keyid;
 	ret = ath10k_wmi_vdev_set_param(ar, 0, vdev_param,
 					arvif->def_wep_key_idx);
-	if (ret)
+	if (ret) {
 		ath10k_warn("Failed to set default keyid: %d\n", ret);
+		goto err_vdev_delete;
+	}
 
 	vdev_param = ar->wmi.vdev_param->tx_encap_type;
 	ret = ath10k_wmi_vdev_set_param(ar, arvif->vdev_id, vdev_param,
 					ATH10K_HW_TXRX_NATIVE_WIFI);
 	/* 10.X firmware does not support this VDEV parameter. Do not warn */
-	if (ret && ret != -EOPNOTSUPP)
+	if (ret && ret != -EOPNOTSUPP) {
 		ath10k_warn("Failed to set TX encap: %d\n", ret);
+		goto err_vdev_delete;
+	}
 
 	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
 		ret = ath10k_peer_create(ar, arvif->vdev_id, vif->addr);
 		if (ret) {
 			ath10k_warn("Failed to create peer for AP: %d\n", ret);
-			goto exit;
+			goto err_vdev_delete;
 		}
 	}
 
@@ -2119,39 +2124,61 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 		value = WMI_STA_PS_RX_WAKE_POLICY_WAKE;
 		ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
 						  param, value);
-		if (ret)
+		if (ret) {
 			ath10k_warn("Failed to set RX wake policy: %d\n", ret);
+			goto err_peer_delete;
+		}
 
 		param = WMI_STA_PS_PARAM_TX_WAKE_THRESHOLD;
 		value = WMI_STA_PS_TX_WAKE_THRESHOLD_ALWAYS;
 		ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
 						  param, value);
-		if (ret)
+		if (ret) {
 			ath10k_warn("Failed to set TX wake thresh: %d\n", ret);
+			goto err_peer_delete;
+		}
 
 		param = WMI_STA_PS_PARAM_PSPOLL_COUNT;
 		value = WMI_STA_PS_PSPOLL_COUNT_NO_MAX;
 		ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id,
 						  param, value);
-		if (ret)
+		if (ret) {
 			ath10k_warn("Failed to set PSPOLL count: %d\n", ret);
+			goto err_peer_delete;
+		}
 	}
 
 	ret = ath10k_mac_set_rts(arvif, ar->hw->wiphy->rts_threshold);
-	if (ret)
+	if (ret) {
 		ath10k_warn("failed to set rts threshold for vdev %d (%d)\n",
 			    arvif->vdev_id, ret);
+		goto err_peer_delete;
+	}
 
 	ret = ath10k_mac_set_frag(arvif, ar->hw->wiphy->frag_threshold);
-	if (ret)
+	if (ret) {
 		ath10k_warn("failed to set frag threshold for vdev %d (%d)\n",
 			    arvif->vdev_id, ret);
+		goto err_peer_delete;
+	}
 
 	if (arvif->vdev_type == WMI_VDEV_TYPE_MONITOR)
 		ar->monitor_present = true;
 
-exit:
 	mutex_unlock(&ar->conf_mutex);
+	return 0;
+
+err_peer_delete:
+	if (arvif->vdev_type == WMI_VDEV_TYPE_AP)
+		ath10k_wmi_peer_delete(ar, arvif->vdev_id, vif->addr);
+
+err_vdev_delete:
+	ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
+	ar->free_vdev_map &= ~BIT(arvif->vdev_id);
+
+err:
+	mutex_unlock(&ar->conf_mutex);
+
 	return ret;
 }
 
-- 
cgit 


From 0579119f7deab9bb112a432a0e8acbc6fc91ea14 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Wed, 16 Oct 2013 15:44:45 +0300
Subject: ath10k: track vif list internally

mac80211 interface interations functions have
peculiar locking issues. This patch introduces
internal (to ath10k) vif list that will be used
for vif iteration purposes.

kvalo: remove extra INIT_LIST_HEAD()

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/core.c | 1 +
 drivers/net/wireless/ath/ath10k/core.h | 3 +++
 drivers/net/wireless/ath/ath10k/mac.c  | 3 +++
 3 files changed, 7 insertions(+)

diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index c5561a935bbb..1129994fb105 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -824,6 +824,7 @@ int ath10k_core_start(struct ath10k *ar)
 		goto err_disconnect_htc;
 
 	ar->free_vdev_map = (1 << TARGET_NUM_VDEVS) - 1;
+	INIT_LIST_HEAD(&ar->arvifs);
 
 	return 0;
 
diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h
index cef5455853c5..0934f7633de3 100644
--- a/drivers/net/wireless/ath/ath10k/core.h
+++ b/drivers/net/wireless/ath/ath10k/core.h
@@ -205,6 +205,8 @@ struct ath10k_peer {
 #define ATH10K_VDEV_SETUP_TIMEOUT_HZ (5*HZ)
 
 struct ath10k_vif {
+	struct list_head list;
+
 	u32 vdev_id;
 	enum wmi_vdev_type vdev_type;
 	enum wmi_vdev_subtype vdev_subtype;
@@ -404,6 +406,7 @@ struct ath10k {
 	/* protects shared structure data */
 	spinlock_t data_lock;
 
+	struct list_head arvifs;
 	struct list_head peers;
 	wait_queue_head_t peer_mapping_wq;
 
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 16e55bd22fc2..c8e4180e8c30 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -2093,6 +2093,7 @@ static int ath10k_add_interface(struct ieee80211_hw *hw,
 	}
 
 	ar->free_vdev_map &= ~BIT(arvif->vdev_id);
+	list_add(&arvif->list, &ar->arvifs);
 
 	vdev_param = ar->wmi.vdev_param->def_keyid;
 	ret = ath10k_wmi_vdev_set_param(ar, 0, vdev_param,
@@ -2175,6 +2176,7 @@ err_peer_delete:
 err_vdev_delete:
 	ath10k_wmi_vdev_delete(ar, arvif->vdev_id);
 	ar->free_vdev_map &= ~BIT(arvif->vdev_id);
+	list_del(&arvif->list);
 
 err:
 	mutex_unlock(&ar->conf_mutex);
@@ -2201,6 +2203,7 @@ static void ath10k_remove_interface(struct ieee80211_hw *hw,
 	spin_unlock_bh(&ar->data_lock);
 
 	ar->free_vdev_map |= 1 << (arvif->vdev_id);
+	list_del(&arvif->list);
 
 	if (arvif->vdev_type == WMI_VDEV_TYPE_AP) {
 		ret = ath10k_peer_delete(arvif->ar, arvif->vdev_id, vif->addr);
-- 
cgit 


From ad088bfa1e3d05670734839e1a22a69ce4b193fb Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Wed, 16 Oct 2013 15:44:46 +0300
Subject: ath10k: fix scheduling while atomic config bug

Recent HTC/WMI changes introduced the bug. ath10k
was using _atomic iteration function with
sleepable functions.

mac80211 provides another iteration function but
it cannot be safely called in hw_config() callback
due to local->iflist_mtx being possibly acquired
already.

The patch uses internal vif list for iteration
purposes and removes/refactors no longer necessary
_iter functions.

Reported-By: Kalle Valo <kvalo@qca.qualcomm.com>
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c | 146 +++++++++++++++-------------------
 1 file changed, 62 insertions(+), 84 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index c8e4180e8c30..bd42a144c5b5 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -723,35 +723,30 @@ static void ath10k_control_ibss(struct ath10k_vif *arvif,
 /*
  * Review this when mac80211 gains per-interface powersave support.
  */
-static void ath10k_ps_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
+static int ath10k_mac_vif_setup_ps(struct ath10k_vif *arvif)
 {
-	struct ath10k_generic_iter *ar_iter = data;
-	struct ieee80211_conf *conf = &ar_iter->ar->hw->conf;
-	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	struct ath10k *ar = arvif->ar;
+	struct ieee80211_conf *conf = &ar->hw->conf;
 	enum wmi_sta_powersave_param param;
 	enum wmi_sta_ps_mode psmode;
 	int ret;
 
 	lockdep_assert_held(&arvif->ar->conf_mutex);
 
-	if (vif->type != NL80211_IFTYPE_STATION)
-		return;
+	if (arvif->vif->type != NL80211_IFTYPE_STATION)
+		return 0;
 
 	if (conf->flags & IEEE80211_CONF_PS) {
 		psmode = WMI_STA_PS_MODE_ENABLED;
 		param = WMI_STA_PS_PARAM_INACTIVITY_TIME;
 
-		ret = ath10k_wmi_set_sta_ps_param(ar_iter->ar,
-						  arvif->vdev_id,
-						  param,
+		ret = ath10k_wmi_set_sta_ps_param(ar, arvif->vdev_id, param,
 						  conf->dynamic_ps_timeout);
 		if (ret) {
 			ath10k_warn("Failed to set inactivity time for VDEV: %d\n",
 				    arvif->vdev_id);
-			return;
+			return ret;
 		}
-
-		ar_iter->ret = ret;
 	} else {
 		psmode = WMI_STA_PS_MODE_DISABLED;
 	}
@@ -759,11 +754,14 @@ static void ath10k_ps_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
 	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d psmode %s\n",
 		   arvif->vdev_id, psmode ? "enable" : "disable");
 
-	ar_iter->ret = ath10k_wmi_set_psmode(ar_iter->ar, arvif->vdev_id,
-					     psmode);
-	if (ar_iter->ret)
+	ret = ath10k_wmi_set_psmode(ar, arvif->vdev_id, psmode);
+	if (ret) {
 		ath10k_warn("Failed to set PS Mode: %d for VDEV: %d\n",
 			    psmode, arvif->vdev_id);
+		return ret;
+	}
+
+	return 0;
 }
 
 /**********************/
@@ -1959,9 +1957,10 @@ static void ath10k_stop(struct ieee80211_hw *hw)
 	cancel_work_sync(&ar->restart_work);
 }
 
-static void ath10k_config_ps(struct ath10k *ar)
+static int ath10k_config_ps(struct ath10k *ar)
 {
-	struct ath10k_generic_iter ar_iter;
+	struct ath10k_vif *arvif;
+	int ret = 0;
 
 	lockdep_assert_held(&ar->conf_mutex);
 
@@ -1970,17 +1969,17 @@ static void ath10k_config_ps(struct ath10k *ar)
 	 * vdevs at this point we must not iterate over this interface list.
 	 * This setting will be updated upon add_interface(). */
 	if (ar->state == ATH10K_STATE_RESTARTED)
-		return;
-
-	memset(&ar_iter, 0, sizeof(struct ath10k_generic_iter));
-	ar_iter.ar = ar;
+		return 0;
 
-	ieee80211_iterate_active_interfaces_atomic(
-		ar->hw, IEEE80211_IFACE_ITER_NORMAL,
-		ath10k_ps_iter, &ar_iter);
+	list_for_each_entry(arvif, &ar->arvifs, list) {
+		ret = ath10k_mac_vif_setup_ps(arvif);
+		if (ret) {
+			ath10k_warn("could not setup powersave (%d)\n", ret);
+			break;
+		}
+	}
 
-	if (ar_iter.ret)
-		ath10k_warn("failed to set ps config (%d)\n", ar_iter.ret);
+	return ret;
 }
 
 static int ath10k_config(struct ieee80211_hw *hw, u32 changed)
@@ -2882,86 +2881,65 @@ static int ath10k_cancel_remain_on_channel(struct ieee80211_hw *hw)
  * Both RTS and Fragmentation threshold are interface-specific
  * in ath10k, but device-specific in mac80211.
  */
-static void ath10k_set_rts_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
-{
-	struct ath10k_generic_iter *ar_iter = data;
-	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
-	u32 rts = ar_iter->ar->hw->wiphy->rts_threshold;
 
-	lockdep_assert_held(&arvif->ar->conf_mutex);
+static int ath10k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
+{
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif;
+	int ret = 0;
 
 	/* During HW reconfiguration mac80211 reports all interfaces that were
 	 * running until reconfiguration was started. Since FW doesn't have any
 	 * vdevs at this point we must not iterate over this interface list.
 	 * This setting will be updated upon add_interface(). */
-	if (ar_iter->ar->state == ATH10K_STATE_RESTARTED)
-		return;
-
-	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d rts_threshold %d\n",
-		   arvif->vdev_id, rts);
-
-	ar_iter->ret = ath10k_mac_set_rts(arvif, rts);
-	if (ar_iter->ret)
-		ath10k_warn("Failed to set RTS threshold for VDEV: %d\n",
-			    arvif->vdev_id);
-}
-
-static int ath10k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
-{
-	struct ath10k_generic_iter ar_iter;
-	struct ath10k *ar = hw->priv;
-
-	memset(&ar_iter, 0, sizeof(struct ath10k_generic_iter));
-	ar_iter.ar = ar;
+	if (ar->state == ATH10K_STATE_RESTARTED)
+		return 0;
 
 	mutex_lock(&ar->conf_mutex);
-	ieee80211_iterate_active_interfaces_atomic(
-		hw, IEEE80211_IFACE_ITER_NORMAL,
-		ath10k_set_rts_iter, &ar_iter);
+	list_for_each_entry(arvif, &ar->arvifs, list) {
+		ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d rts threshold %d\n",
+			   arvif->vdev_id, value);
+
+		ret = ath10k_mac_set_rts(arvif, value);
+		if (ret) {
+			ath10k_warn("could not set rts threshold for vdev %d (%d)\n",
+				    arvif->vdev_id, ret);
+			break;
+		}
+	}
 	mutex_unlock(&ar->conf_mutex);
 
-	return ar_iter.ret;
+	return ret;
 }
 
-static void ath10k_set_frag_iter(void *data, u8 *mac, struct ieee80211_vif *vif)
+static int ath10k_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
 {
-	struct ath10k_generic_iter *ar_iter = data;
-	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
-	u32 frag = ar_iter->ar->hw->wiphy->frag_threshold;
-
-	lockdep_assert_held(&arvif->ar->conf_mutex);
+	struct ath10k *ar = hw->priv;
+	struct ath10k_vif *arvif;
+	int ret = 0;
 
 	/* During HW reconfiguration mac80211 reports all interfaces that were
 	 * running until reconfiguration was started. Since FW doesn't have any
 	 * vdevs at this point we must not iterate over this interface list.
 	 * This setting will be updated upon add_interface(). */
-	if (ar_iter->ar->state == ATH10K_STATE_RESTARTED)
-		return;
-
-	ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d fragmentation_threshold %d\n",
-		   arvif->vdev_id, frag);
-
-	ar_iter->ret = ath10k_mac_set_frag(arvif, frag);
-	if (ar_iter->ret)
-		ath10k_warn("Failed to set frag threshold for VDEV: %d\n",
-			    arvif->vdev_id);
-}
-
-static int ath10k_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
-{
-	struct ath10k_generic_iter ar_iter;
-	struct ath10k *ar = hw->priv;
-
-	memset(&ar_iter, 0, sizeof(struct ath10k_generic_iter));
-	ar_iter.ar = ar;
+	if (ar->state == ATH10K_STATE_RESTARTED)
+		return 0;
 
 	mutex_lock(&ar->conf_mutex);
-	ieee80211_iterate_active_interfaces_atomic(
-		hw, IEEE80211_IFACE_ITER_NORMAL,
-		ath10k_set_frag_iter, &ar_iter);
+	list_for_each_entry(arvif, &ar->arvifs, list) {
+		ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d fragmentation threshold %d\n",
+			   arvif->vdev_id, value);
+
+		ret = ath10k_mac_set_rts(arvif, value);
+		if (ret) {
+			ath10k_warn("could not set fragmentation threshold for vdev %d (%d)\n",
+				    arvif->vdev_id, ret);
+			break;
+		}
+	}
 	mutex_unlock(&ar->conf_mutex);
 
-	return ar_iter.ret;
+	return ret;
 }
 
 static void ath10k_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
-- 
cgit 


From 588490cf65063ce5f307116163af0bcfb69d7f56 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Wed, 16 Oct 2013 15:44:46 +0300
Subject: ath10k: remove unnecessary checks

mac80211 interface iteration functions that were
used originally iterated over interfaces that
weren't re-added to the driver during recovery.

Since internal vif list is now used it's safe to
remove the safe-guard as internal vif list is
based on add/remove_interface function which
guarantees that vdev is created in FW before it is
iterated over.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c | 21 ---------------------
 1 file changed, 21 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index bd42a144c5b5..4273eefffc36 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1964,13 +1964,6 @@ static int ath10k_config_ps(struct ath10k *ar)
 
 	lockdep_assert_held(&ar->conf_mutex);
 
-	/* During HW reconfiguration mac80211 reports all interfaces that were
-	 * running until reconfiguration was started. Since FW doesn't have any
-	 * vdevs at this point we must not iterate over this interface list.
-	 * This setting will be updated upon add_interface(). */
-	if (ar->state == ATH10K_STATE_RESTARTED)
-		return 0;
-
 	list_for_each_entry(arvif, &ar->arvifs, list) {
 		ret = ath10k_mac_vif_setup_ps(arvif);
 		if (ret) {
@@ -2888,13 +2881,6 @@ static int ath10k_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
 	struct ath10k_vif *arvif;
 	int ret = 0;
 
-	/* During HW reconfiguration mac80211 reports all interfaces that were
-	 * running until reconfiguration was started. Since FW doesn't have any
-	 * vdevs at this point we must not iterate over this interface list.
-	 * This setting will be updated upon add_interface(). */
-	if (ar->state == ATH10K_STATE_RESTARTED)
-		return 0;
-
 	mutex_lock(&ar->conf_mutex);
 	list_for_each_entry(arvif, &ar->arvifs, list) {
 		ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d rts threshold %d\n",
@@ -2918,13 +2904,6 @@ static int ath10k_set_frag_threshold(struct ieee80211_hw *hw, u32 value)
 	struct ath10k_vif *arvif;
 	int ret = 0;
 
-	/* During HW reconfiguration mac80211 reports all interfaces that were
-	 * running until reconfiguration was started. Since FW doesn't have any
-	 * vdevs at this point we must not iterate over this interface list.
-	 * This setting will be updated upon add_interface(). */
-	if (ar->state == ATH10K_STATE_RESTARTED)
-		return 0;
-
 	mutex_lock(&ar->conf_mutex);
 	list_for_each_entry(arvif, &ar->arvifs, list) {
 		ath10k_dbg(ATH10K_DBG_MAC, "mac vdev %d fragmentation threshold %d\n",
-- 
cgit 


From b9ada65d97be58d82941f23dce5adde0d0eec61a Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Wed, 16 Oct 2013 15:44:46 +0300
Subject: ath10k: fix ath10k_bss_assoc() to not sleep in atomic context

ath10k_bss_assoc() was calling ath10k_peer_assoc(), which can sleep, under
atomic rcu_read_lock() and causing scheduing while atomic errors. Workaround
that by delaying the call to ath10k_wmi_peer_assoc().

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/mac.c | 56 +++++++++++++++++++++++------------
 1 file changed, 37 insertions(+), 19 deletions(-)

diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 4273eefffc36..0b1cc516e778 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -1137,26 +1137,25 @@ static void ath10k_peer_assoc_h_phymode(struct ath10k *ar,
 	WARN_ON(phymode == MODE_UNKNOWN);
 }
 
-static int ath10k_peer_assoc(struct ath10k *ar,
-			     struct ath10k_vif *arvif,
-			     struct ieee80211_sta *sta,
-			     struct ieee80211_bss_conf *bss_conf)
+static int ath10k_peer_assoc_prepare(struct ath10k *ar,
+				     struct ath10k_vif *arvif,
+				     struct ieee80211_sta *sta,
+				     struct ieee80211_bss_conf *bss_conf,
+				     struct wmi_peer_assoc_complete_arg *arg)
 {
-	struct wmi_peer_assoc_complete_arg arg;
-
 	lockdep_assert_held(&ar->conf_mutex);
 
-	memset(&arg, 0, sizeof(struct wmi_peer_assoc_complete_arg));
+	memset(arg, 0, sizeof(*arg));
 
-	ath10k_peer_assoc_h_basic(ar, arvif, sta, bss_conf, &arg);
-	ath10k_peer_assoc_h_crypto(ar, arvif, &arg);
-	ath10k_peer_assoc_h_rates(ar, sta, &arg);
-	ath10k_peer_assoc_h_ht(ar, sta, &arg);
-	ath10k_peer_assoc_h_vht(ar, sta, &arg);
-	ath10k_peer_assoc_h_qos(ar, arvif, sta, bss_conf, &arg);
-	ath10k_peer_assoc_h_phymode(ar, arvif, sta, &arg);
+	ath10k_peer_assoc_h_basic(ar, arvif, sta, bss_conf, arg);
+	ath10k_peer_assoc_h_crypto(ar, arvif, arg);
+	ath10k_peer_assoc_h_rates(ar, sta, arg);
+	ath10k_peer_assoc_h_ht(ar, sta, arg);
+	ath10k_peer_assoc_h_vht(ar, sta, arg);
+	ath10k_peer_assoc_h_qos(ar, arvif, sta, bss_conf, arg);
+	ath10k_peer_assoc_h_phymode(ar, arvif, sta, arg);
 
-	return ath10k_wmi_peer_assoc(ar, &arg);
+	return 0;
 }
 
 /* can be called only in mac80211 callbacks due to `key_count` usage */
@@ -1166,6 +1165,7 @@ static void ath10k_bss_assoc(struct ieee80211_hw *hw,
 {
 	struct ath10k *ar = hw->priv;
 	struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
+	struct wmi_peer_assoc_complete_arg peer_arg;
 	struct ieee80211_sta *ap_sta;
 	int ret;
 
@@ -1181,15 +1181,24 @@ static void ath10k_bss_assoc(struct ieee80211_hw *hw,
 		return;
 	}
 
-	ret = ath10k_peer_assoc(ar, arvif, ap_sta, bss_conf);
+	ret = ath10k_peer_assoc_prepare(ar, arvif, ap_sta,
+					bss_conf, &peer_arg);
 	if (ret) {
-		ath10k_warn("Peer assoc failed for %pM\n", bss_conf->bssid);
+		ath10k_warn("Peer assoc prepare failed for %pM\n: %d",
+			    bss_conf->bssid, ret);
 		rcu_read_unlock();
 		return;
 	}
 
 	rcu_read_unlock();
 
+	ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
+	if (ret) {
+		ath10k_warn("Peer assoc failed for %pM\n: %d",
+			    bss_conf->bssid, ret);
+		return;
+	}
+
 	ath10k_dbg(ATH10K_DBG_MAC,
 		   "mac vdev %d up (associated) bssid %pM aid %d\n",
 		   arvif->vdev_id, bss_conf->bssid, bss_conf->aid);
@@ -1243,13 +1252,22 @@ static void ath10k_bss_disassoc(struct ieee80211_hw *hw,
 static int ath10k_station_assoc(struct ath10k *ar, struct ath10k_vif *arvif,
 				struct ieee80211_sta *sta)
 {
+	struct wmi_peer_assoc_complete_arg peer_arg;
 	int ret = 0;
 
 	lockdep_assert_held(&ar->conf_mutex);
 
-	ret = ath10k_peer_assoc(ar, arvif, sta, NULL);
+	ret = ath10k_peer_assoc_prepare(ar, arvif, sta, NULL, &peer_arg);
+	if (ret) {
+		ath10k_warn("WMI peer assoc prepare failed for %pM\n",
+			    sta->addr);
+		return ret;
+	}
+
+	ret = ath10k_wmi_peer_assoc(ar, &peer_arg);
 	if (ret) {
-		ath10k_warn("WMI peer assoc failed for %pM\n", sta->addr);
+		ath10k_warn("Peer assoc failed for STA %pM\n: %d",
+			    sta->addr, ret);
 		return ret;
 	}
 
-- 
cgit 


From 56b84287d14aa74823a9c290d0c5839d38365110 Mon Sep 17 00:00:00 2001
From: Kalle Valo <kvalo@qca.qualcomm.com>
Date: Wed, 16 Oct 2013 15:44:47 +0300
Subject: ath10k: add might_sleep() to ath10k_wmi_cmd_send()

ath10k_wmi_cmd_send() will now sleep if there are no credits available.
To make it easier to catch callers in atomic context add might_sleep()
to the function.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
---
 drivers/net/wireless/ath/ath10k/wmi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index d1e513ef71ae..77238afbed75 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -613,6 +613,8 @@ static int ath10k_wmi_cmd_send(struct ath10k *ar, struct sk_buff *skb,
 {
 	int ret = -EOPNOTSUPP;
 
+	might_sleep();
+
 	if (cmd_id == WMI_CMD_UNSUPPORTED) {
 		ath10k_warn("wmi command %d is not supported by firmware\n",
 			    cmd_id);
-- 
cgit 


From 1c6b7c2108bdb0c6a17044830028a649dbaca913 Mon Sep 17 00:00:00 2001
From: Pali Rohár <pali.rohar@gmail.com>
Date: Fri, 20 Sep 2013 15:25:06 +0200
Subject: hwrng: OMAP3 ROM Random Number Generator support
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This driver provides kernel-side support for the Random Number
Generator hardware found on OMAP34xx processors.

This driver comes from Maemo 2.6.28 kernel and was tested on Nokia RX-51.
It is platform device because it needs board specific function for smc calls.

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Juha Yrjola <juha.yrjola@solidboot.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/char/hw_random/Kconfig         |  13 +++
 drivers/char/hw_random/Makefile        |   1 +
 drivers/char/hw_random/omap3-rom-rng.c | 141 +++++++++++++++++++++++++++++++++
 3 files changed, 155 insertions(+)
 create mode 100644 drivers/char/hw_random/omap3-rom-rng.c

diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 0aa9d91daef5..0a331c341fff 100644
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -165,6 +165,19 @@ config HW_RANDOM_OMAP
 
  	  If unsure, say Y.
 
+config HW_RANDOM_OMAP3_ROM
+	tristate "OMAP3 ROM Random Number Generator support"
+	depends on HW_RANDOM && ARCH_OMAP3
+	default HW_RANDOM
+	---help---
+	  This driver provides kernel-side support for the Random Number
+	  Generator hardware found on OMAP34xx processors.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called omap3-rom-rng.
+
+	  If unsure, say Y.
+
 config HW_RANDOM_OCTEON
 	tristate "Octeon Random Number Generator support"
 	depends on HW_RANDOM && CAVIUM_OCTEON_SOC
diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile
index bed467c9300e..7c8aa8077f5e 100644
--- a/drivers/char/hw_random/Makefile
+++ b/drivers/char/hw_random/Makefile
@@ -15,6 +15,7 @@ n2-rng-y := n2-drv.o n2-asm.o
 obj-$(CONFIG_HW_RANDOM_VIA) += via-rng.o
 obj-$(CONFIG_HW_RANDOM_IXP4XX) += ixp4xx-rng.o
 obj-$(CONFIG_HW_RANDOM_OMAP) += omap-rng.o
+obj-$(CONFIG_HW_RANDOM_OMAP3_ROM) += omap3-rom-rng.o
 obj-$(CONFIG_HW_RANDOM_PASEMI) += pasemi-rng.o
 obj-$(CONFIG_HW_RANDOM_VIRTIO) += virtio-rng.o
 obj-$(CONFIG_HW_RANDOM_TX4939) += tx4939-rng.o
diff --git a/drivers/char/hw_random/omap3-rom-rng.c b/drivers/char/hw_random/omap3-rom-rng.c
new file mode 100644
index 000000000000..c853e9e68573
--- /dev/null
+++ b/drivers/char/hw_random/omap3-rom-rng.c
@@ -0,0 +1,141 @@
+/*
+ * omap3-rom-rng.c - RNG driver for TI OMAP3 CPU family
+ *
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Juha Yrjola <juha.yrjola@solidboot.com>
+ *
+ * Copyright (C) 2013 Pali Rohár <pali.rohar@gmail.com>
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/random.h>
+#include <linux/hw_random.h>
+#include <linux/timer.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+
+#define RNG_RESET			0x01
+#define RNG_GEN_PRNG_HW_INIT		0x02
+#define RNG_GEN_HW			0x08
+
+/* param1: ptr, param2: count, param3: flag */
+static u32 (*omap3_rom_rng_call)(u32, u32, u32);
+
+static struct timer_list idle_timer;
+static int rng_idle;
+static struct clk *rng_clk;
+
+static void omap3_rom_rng_idle(unsigned long data)
+{
+	int r;
+
+	r = omap3_rom_rng_call(0, 0, RNG_RESET);
+	if (r != 0) {
+		pr_err("reset failed: %d\n", r);
+		return;
+	}
+	clk_disable_unprepare(rng_clk);
+	rng_idle = 1;
+}
+
+static int omap3_rom_rng_get_random(void *buf, unsigned int count)
+{
+	u32 r;
+	u32 ptr;
+
+	del_timer_sync(&idle_timer);
+	if (rng_idle) {
+		clk_prepare_enable(rng_clk);
+		r = omap3_rom_rng_call(0, 0, RNG_GEN_PRNG_HW_INIT);
+		if (r != 0) {
+			clk_disable_unprepare(rng_clk);
+			pr_err("HW init failed: %d\n", r);
+			return -EIO;
+		}
+		rng_idle = 0;
+	}
+
+	ptr = virt_to_phys(buf);
+	r = omap3_rom_rng_call(ptr, count, RNG_GEN_HW);
+	mod_timer(&idle_timer, jiffies + msecs_to_jiffies(500));
+	if (r != 0)
+		return -EINVAL;
+	return 0;
+}
+
+static int omap3_rom_rng_data_present(struct hwrng *rng, int wait)
+{
+	return 1;
+}
+
+static int omap3_rom_rng_data_read(struct hwrng *rng, u32 *data)
+{
+	int r;
+
+	r = omap3_rom_rng_get_random(data, 4);
+	if (r < 0)
+		return r;
+	return 4;
+}
+
+static struct hwrng omap3_rom_rng_ops = {
+	.name		= "omap3-rom",
+	.data_present	= omap3_rom_rng_data_present,
+	.data_read	= omap3_rom_rng_data_read,
+};
+
+static int omap3_rom_rng_probe(struct platform_device *pdev)
+{
+	pr_info("initializing\n");
+
+	omap3_rom_rng_call = pdev->dev.platform_data;
+	if (!omap3_rom_rng_call) {
+		pr_err("omap3_rom_rng_call is NULL\n");
+		return -EINVAL;
+	}
+
+	setup_timer(&idle_timer, omap3_rom_rng_idle, 0);
+	rng_clk = clk_get(&pdev->dev, "ick");
+	if (IS_ERR(rng_clk)) {
+		pr_err("unable to get RNG clock\n");
+		return PTR_ERR(rng_clk);
+	}
+
+	/* Leave the RNG in reset state. */
+	clk_prepare_enable(rng_clk);
+	omap3_rom_rng_idle(0);
+
+	return hwrng_register(&omap3_rom_rng_ops);
+}
+
+static int omap3_rom_rng_remove(struct platform_device *pdev)
+{
+	hwrng_unregister(&omap3_rom_rng_ops);
+	clk_disable_unprepare(rng_clk);
+	clk_put(rng_clk);
+	return 0;
+}
+
+static struct platform_driver omap3_rom_rng_driver = {
+	.driver = {
+		.name		= "omap3-rom-rng",
+		.owner		= THIS_MODULE,
+	},
+	.probe		= omap3_rom_rng_probe,
+	.remove		= omap3_rom_rng_remove,
+};
+
+module_platform_driver(omap3_rom_rng_driver);
+
+MODULE_ALIAS("platform:omap3-rom-rng");
+MODULE_AUTHOR("Juha Yrjola");
+MODULE_AUTHOR("Pali Rohár <pali.rohar@gmail.com>");
+MODULE_LICENSE("GPL");
-- 
cgit 


From 6d3aab4ebeca2b9a5e0a2681e0f99ce6dda8a4c2 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 06:49:13 +0200
Subject: crypto: mv_cesa: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/mv_cesa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/mv_cesa.c b/drivers/crypto/mv_cesa.c
index 2662d1b04c2a..8d1e6f8e9e9c 100644
--- a/drivers/crypto/mv_cesa.c
+++ b/drivers/crypto/mv_cesa.c
@@ -1084,7 +1084,7 @@ static int mv_probe(struct platform_device *pdev)
 		goto err_unmap_sram;
 	}
 
-	ret = request_irq(irq, crypto_int, IRQF_DISABLED, dev_name(&pdev->dev),
+	ret = request_irq(irq, crypto_int, 0, dev_name(&pdev->dev),
 			cp);
 	if (ret)
 		goto err_thread;
-- 
cgit 


From bc6e2bdb71056607141ada309a185f0a50b1aeaf Mon Sep 17 00:00:00 2001
From: Mathias Krause <mathias.krause@secunet.com>
Date: Tue, 15 Oct 2013 13:49:30 +0200
Subject: crypto: authenc - Export key parsing helper function

AEAD key parsing is duplicated to multiple places in the kernel. Add a
common helper function to consolidate that functionality.

Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Mathias Krause <mathias.krause@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/authenc.c         | 48 ++++++++++++++++++++++++++++++------------------
 include/crypto/authenc.h | 12 +++++++++++-
 2 files changed, 41 insertions(+), 19 deletions(-)

diff --git a/crypto/authenc.c b/crypto/authenc.c
index 2b3f4abda929..1875e7026e8f 100644
--- a/crypto/authenc.c
+++ b/crypto/authenc.c
@@ -52,40 +52,52 @@ static void authenc_request_complete(struct aead_request *req, int err)
 		aead_request_complete(req, err);
 }
 
-static int crypto_authenc_setkey(struct crypto_aead *authenc, const u8 *key,
-				 unsigned int keylen)
+int crypto_authenc_extractkeys(struct crypto_authenc_keys *keys, const u8 *key,
+			       unsigned int keylen)
 {
-	unsigned int authkeylen;
-	unsigned int enckeylen;
-	struct crypto_authenc_ctx *ctx = crypto_aead_ctx(authenc);
-	struct crypto_ahash *auth = ctx->auth;
-	struct crypto_ablkcipher *enc = ctx->enc;
-	struct rtattr *rta = (void *)key;
+	struct rtattr *rta = (struct rtattr *)key;
 	struct crypto_authenc_key_param *param;
-	int err = -EINVAL;
 
 	if (!RTA_OK(rta, keylen))
-		goto badkey;
+		return -EINVAL;
 	if (rta->rta_type != CRYPTO_AUTHENC_KEYA_PARAM)
-		goto badkey;
+		return -EINVAL;
 	if (RTA_PAYLOAD(rta) < sizeof(*param))
-		goto badkey;
+		return -EINVAL;
 
 	param = RTA_DATA(rta);
-	enckeylen = be32_to_cpu(param->enckeylen);
+	keys->enckeylen = be32_to_cpu(param->enckeylen);
 
 	key += RTA_ALIGN(rta->rta_len);
 	keylen -= RTA_ALIGN(rta->rta_len);
 
-	if (keylen < enckeylen)
-		goto badkey;
+	if (keylen < keys->enckeylen)
+		return -EINVAL;
 
-	authkeylen = keylen - enckeylen;
+	keys->authkeylen = keylen - keys->enckeylen;
+	keys->authkey = key;
+	keys->enckey = key + keys->authkeylen;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(crypto_authenc_extractkeys);
+
+static int crypto_authenc_setkey(struct crypto_aead *authenc, const u8 *key,
+				 unsigned int keylen)
+{
+	struct crypto_authenc_ctx *ctx = crypto_aead_ctx(authenc);
+	struct crypto_ahash *auth = ctx->auth;
+	struct crypto_ablkcipher *enc = ctx->enc;
+	struct crypto_authenc_keys keys;
+	int err = -EINVAL;
+
+	if (crypto_authenc_extractkeys(&keys, key, keylen) != 0)
+		goto badkey;
 
 	crypto_ahash_clear_flags(auth, CRYPTO_TFM_REQ_MASK);
 	crypto_ahash_set_flags(auth, crypto_aead_get_flags(authenc) &
 				    CRYPTO_TFM_REQ_MASK);
-	err = crypto_ahash_setkey(auth, key, authkeylen);
+	err = crypto_ahash_setkey(auth, keys.authkey, keys.authkeylen);
 	crypto_aead_set_flags(authenc, crypto_ahash_get_flags(auth) &
 				       CRYPTO_TFM_RES_MASK);
 
@@ -95,7 +107,7 @@ static int crypto_authenc_setkey(struct crypto_aead *authenc, const u8 *key,
 	crypto_ablkcipher_clear_flags(enc, CRYPTO_TFM_REQ_MASK);
 	crypto_ablkcipher_set_flags(enc, crypto_aead_get_flags(authenc) &
 					 CRYPTO_TFM_REQ_MASK);
-	err = crypto_ablkcipher_setkey(enc, key + authkeylen, enckeylen);
+	err = crypto_ablkcipher_setkey(enc, keys.enckey, keys.enckeylen);
 	crypto_aead_set_flags(authenc, crypto_ablkcipher_get_flags(enc) &
 				       CRYPTO_TFM_RES_MASK);
 
diff --git a/include/crypto/authenc.h b/include/crypto/authenc.h
index e47b044929a8..6775059539b5 100644
--- a/include/crypto/authenc.h
+++ b/include/crypto/authenc.h
@@ -23,5 +23,15 @@ struct crypto_authenc_key_param {
 	__be32 enckeylen;
 };
 
-#endif	/* _CRYPTO_AUTHENC_H */
+struct crypto_authenc_keys {
+	const u8 *authkey;
+	const u8 *enckey;
+
+	unsigned int authkeylen;
+	unsigned int enckeylen;
+};
 
+int crypto_authenc_extractkeys(struct crypto_authenc_keys *keys, const u8 *key,
+			       unsigned int keylen);
+
+#endif	/* _CRYPTO_AUTHENC_H */
-- 
cgit 


From fddc2c43c48d62f70553785d1220505f33aebe0e Mon Sep 17 00:00:00 2001
From: Mathias Krause <mathias.krause@secunet.com>
Date: Tue, 15 Oct 2013 13:49:31 +0200
Subject: crypto: authencesn - Simplify key parsing

Use the common helper function crypto_authenc_extractkeys() for key
parsing.

Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Mathias Krause <mathias.krause@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/authencesn.c | 26 ++++----------------------
 1 file changed, 4 insertions(+), 22 deletions(-)

diff --git a/crypto/authencesn.c b/crypto/authencesn.c
index c569d58de661..4be0dd4373a9 100644
--- a/crypto/authencesn.c
+++ b/crypto/authencesn.c
@@ -59,37 +59,19 @@ static void authenc_esn_request_complete(struct aead_request *req, int err)
 static int crypto_authenc_esn_setkey(struct crypto_aead *authenc_esn, const u8 *key,
 				     unsigned int keylen)
 {
-	unsigned int authkeylen;
-	unsigned int enckeylen;
 	struct crypto_authenc_esn_ctx *ctx = crypto_aead_ctx(authenc_esn);
 	struct crypto_ahash *auth = ctx->auth;
 	struct crypto_ablkcipher *enc = ctx->enc;
-	struct rtattr *rta = (void *)key;
-	struct crypto_authenc_key_param *param;
+	struct crypto_authenc_keys keys;
 	int err = -EINVAL;
 
-	if (!RTA_OK(rta, keylen))
+	if (crypto_authenc_extractkeys(&keys, key, keylen) != 0)
 		goto badkey;
-	if (rta->rta_type != CRYPTO_AUTHENC_KEYA_PARAM)
-		goto badkey;
-	if (RTA_PAYLOAD(rta) < sizeof(*param))
-		goto badkey;
-
-	param = RTA_DATA(rta);
-	enckeylen = be32_to_cpu(param->enckeylen);
-
-	key += RTA_ALIGN(rta->rta_len);
-	keylen -= RTA_ALIGN(rta->rta_len);
-
-	if (keylen < enckeylen)
-		goto badkey;
-
-	authkeylen = keylen - enckeylen;
 
 	crypto_ahash_clear_flags(auth, CRYPTO_TFM_REQ_MASK);
 	crypto_ahash_set_flags(auth, crypto_aead_get_flags(authenc_esn) &
 				     CRYPTO_TFM_REQ_MASK);
-	err = crypto_ahash_setkey(auth, key, authkeylen);
+	err = crypto_ahash_setkey(auth, keys.authkey, keys.authkeylen);
 	crypto_aead_set_flags(authenc_esn, crypto_ahash_get_flags(auth) &
 					   CRYPTO_TFM_RES_MASK);
 
@@ -99,7 +81,7 @@ static int crypto_authenc_esn_setkey(struct crypto_aead *authenc_esn, const u8 *
 	crypto_ablkcipher_clear_flags(enc, CRYPTO_TFM_REQ_MASK);
 	crypto_ablkcipher_set_flags(enc, crypto_aead_get_flags(authenc_esn) &
 					 CRYPTO_TFM_REQ_MASK);
-	err = crypto_ablkcipher_setkey(enc, key + authkeylen, enckeylen);
+	err = crypto_ablkcipher_setkey(enc, keys.enckey, keys.enckeylen);
 	crypto_aead_set_flags(authenc_esn, crypto_ablkcipher_get_flags(enc) &
 					   CRYPTO_TFM_RES_MASK);
 
-- 
cgit 


From 56902781cd037f4d6380cb037b5f50076bb82549 Mon Sep 17 00:00:00 2001
From: Mathias Krause <mathias.krause@secunet.com>
Date: Tue, 15 Oct 2013 13:49:32 +0200
Subject: crypto: ixp4xx - Simplify and harden key parsing

Use the common helper function crypto_authenc_extractkeys() for key
parsing. Also ensure the keys do fit into the corresponding buffers.
Otherwise memory corruption might occur.

Cc: Christian Hohnstaedt <chohnstaedt@innominate.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Mathias Krause <mathias.krause@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/ixp4xx_crypto.c | 26 +++++++++-----------------
 1 file changed, 9 insertions(+), 17 deletions(-)

diff --git a/drivers/crypto/ixp4xx_crypto.c b/drivers/crypto/ixp4xx_crypto.c
index 21180d6cad6e..153f73c12d3e 100644
--- a/drivers/crypto/ixp4xx_crypto.c
+++ b/drivers/crypto/ixp4xx_crypto.c
@@ -1159,32 +1159,24 @@ static int aead_setkey(struct crypto_aead *tfm, const u8 *key,
 			unsigned int keylen)
 {
 	struct ixp_ctx *ctx = crypto_aead_ctx(tfm);
-	struct rtattr *rta = (struct rtattr *)key;
-	struct crypto_authenc_key_param *param;
+	struct crypto_authenc_keys keys;
 
-	if (!RTA_OK(rta, keylen))
-		goto badkey;
-	if (rta->rta_type != CRYPTO_AUTHENC_KEYA_PARAM)
-		goto badkey;
-	if (RTA_PAYLOAD(rta) < sizeof(*param))
+	if (crypto_authenc_extractkeys(&keys, key, keylen) != 0)
 		goto badkey;
 
-	param = RTA_DATA(rta);
-	ctx->enckey_len = be32_to_cpu(param->enckeylen);
-
-	key += RTA_ALIGN(rta->rta_len);
-	keylen -= RTA_ALIGN(rta->rta_len);
+	if (keys.authkeylen > sizeof(ctx->authkey))
+		goto badkey;
 
-	if (keylen < ctx->enckey_len)
+	if (keys.enckeylen > sizeof(ctx->enckey))
 		goto badkey;
 
-	ctx->authkey_len = keylen - ctx->enckey_len;
-	memcpy(ctx->enckey, key + ctx->authkey_len, ctx->enckey_len);
-	memcpy(ctx->authkey, key, ctx->authkey_len);
+	memcpy(ctx->authkey, keys.authkey, keys.authkeylen);
+	memcpy(ctx->enckey, keys.enckey, keys.enckeylen);
+	ctx->authkey_len = keys.authkeylen;
+	ctx->enckey_len = keys.enckeylen;
 
 	return aead_setup(tfm, crypto_aead_authsize(tfm));
 badkey:
-	ctx->enckey_len = 0;
 	crypto_aead_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
 	return -EINVAL;
 }
-- 
cgit 


From ab827fb399b453bd7d4a49e8878bc5f7018507dd Mon Sep 17 00:00:00 2001
From: Mathias Krause <mathias.krause@secunet.com>
Date: Tue, 15 Oct 2013 13:49:33 +0200
Subject: crypto: picoxcell - Simplify and harden key parsing

Use the common helper function crypto_authenc_extractkeys() for key
parsing. Also ensure the auth key won't overflow the hash_ctx buffer.

Cc: Jamie Iles <jamie@jamieiles.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Mathias Krause <mathias.krause@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/picoxcell_crypto.c | 32 ++++++++------------------------
 1 file changed, 8 insertions(+), 24 deletions(-)

diff --git a/drivers/crypto/picoxcell_crypto.c b/drivers/crypto/picoxcell_crypto.c
index 888f7f4a6d3f..a6175ba6d238 100644
--- a/drivers/crypto/picoxcell_crypto.c
+++ b/drivers/crypto/picoxcell_crypto.c
@@ -495,45 +495,29 @@ static int spacc_aead_setkey(struct crypto_aead *tfm, const u8 *key,
 {
 	struct spacc_aead_ctx *ctx = crypto_aead_ctx(tfm);
 	struct spacc_alg *alg = to_spacc_alg(tfm->base.__crt_alg);
-	struct rtattr *rta = (void *)key;
-	struct crypto_authenc_key_param *param;
-	unsigned int authkeylen, enckeylen;
+	struct crypto_authenc_keys keys;
 	int err = -EINVAL;
 
-	if (!RTA_OK(rta, keylen))
+	if (crypto_authenc_extractkeys(&keys, key, keylen) != 0)
 		goto badkey;
 
-	if (rta->rta_type != CRYPTO_AUTHENC_KEYA_PARAM)
+	if (keys.enckeylen > AES_MAX_KEY_SIZE)
 		goto badkey;
 
-	if (RTA_PAYLOAD(rta) < sizeof(*param))
-		goto badkey;
-
-	param = RTA_DATA(rta);
-	enckeylen = be32_to_cpu(param->enckeylen);
-
-	key += RTA_ALIGN(rta->rta_len);
-	keylen -= RTA_ALIGN(rta->rta_len);
-
-	if (keylen < enckeylen)
-		goto badkey;
-
-	authkeylen = keylen - enckeylen;
-
-	if (enckeylen > AES_MAX_KEY_SIZE)
+	if (keys.authkeylen > sizeof(ctx->hash_ctx))
 		goto badkey;
 
 	if ((alg->ctrl_default & SPACC_CRYPTO_ALG_MASK) ==
 	    SPA_CTRL_CIPH_ALG_AES)
-		err = spacc_aead_aes_setkey(tfm, key + authkeylen, enckeylen);
+		err = spacc_aead_aes_setkey(tfm, keys.enckey, keys.enckeylen);
 	else
-		err = spacc_aead_des_setkey(tfm, key + authkeylen, enckeylen);
+		err = spacc_aead_des_setkey(tfm, keys.enckey, keys.enckeylen);
 
 	if (err)
 		goto badkey;
 
-	memcpy(ctx->hash_ctx, key, authkeylen);
-	ctx->hash_key_len = authkeylen;
+	memcpy(ctx->hash_ctx, keys.authkey, keys.authkeylen);
+	ctx->hash_key_len = keys.authkeylen;
 
 	return 0;
 
-- 
cgit 


From c306a98d637613818c87c19eabf7feba02b5b618 Mon Sep 17 00:00:00 2001
From: Mathias Krause <mathias.krause@secunet.com>
Date: Tue, 15 Oct 2013 13:49:34 +0200
Subject: crypto: talitos - Simplify key parsing

Use the common helper function crypto_authenc_extractkeys() for key
parsing.

Cc: Kim Phillips <kim.phillips@freescale.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Mathias Krause <mathias.krause@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/talitos.c | 35 ++++++++---------------------------
 1 file changed, 8 insertions(+), 27 deletions(-)

diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 661dc3eb1d66..f6f7c681073e 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -671,39 +671,20 @@ static int aead_setkey(struct crypto_aead *authenc,
 		       const u8 *key, unsigned int keylen)
 {
 	struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
-	struct rtattr *rta = (void *)key;
-	struct crypto_authenc_key_param *param;
-	unsigned int authkeylen;
-	unsigned int enckeylen;
-
-	if (!RTA_OK(rta, keylen))
-		goto badkey;
+	struct crypto_authenc_keys keys;
 
-	if (rta->rta_type != CRYPTO_AUTHENC_KEYA_PARAM)
+	if (crypto_authenc_extractkeys(&keys, key, keylen) != 0)
 		goto badkey;
 
-	if (RTA_PAYLOAD(rta) < sizeof(*param))
+	if (keys.authkeylen + keys.enckeylen > TALITOS_MAX_KEY_SIZE)
 		goto badkey;
 
-	param = RTA_DATA(rta);
-	enckeylen = be32_to_cpu(param->enckeylen);
-
-	key += RTA_ALIGN(rta->rta_len);
-	keylen -= RTA_ALIGN(rta->rta_len);
-
-	if (keylen < enckeylen)
-		goto badkey;
+	memcpy(ctx->key, keys.authkey, keys.authkeylen);
+	memcpy(&ctx->key[keys.authkeylen], keys.enckey, keys.enckeylen);
 
-	authkeylen = keylen - enckeylen;
-
-	if (keylen > TALITOS_MAX_KEY_SIZE)
-		goto badkey;
-
-	memcpy(&ctx->key, key, keylen);
-
-	ctx->keylen = keylen;
-	ctx->enckeylen = enckeylen;
-	ctx->authkeylen = authkeylen;
+	ctx->keylen = keys.authkeylen + keys.enckeylen;
+	ctx->enckeylen = keys.enckeylen;
+	ctx->authkeylen = keys.authkeylen;
 
 	return 0;
 
-- 
cgit 


From 586a87e6edc936d6d3c3585af504b33b9c3f0a06 Mon Sep 17 00:00:00 2001
From: Christian Ruppert <christian.ruppert@abilis.com>
Date: Tue, 15 Oct 2013 15:37:54 +0200
Subject: pinctrl/gpio: non-linear GPIO ranges accesible from gpiolib

This patch adds the infrastructure required to register non-linear gpio
ranges through gpiolib and the standard GPIO device tree bindings.

Signed-off-by: Christian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 Documentation/devicetree/bindings/gpio/gpio.txt | 40 +++++++++++++++-
 drivers/gpio/gpiolib-of.c                       | 63 +++++++++++++++++++++----
 drivers/gpio/gpiolib.c                          | 47 ++++++++++++++++++
 drivers/pinctrl/core.c                          | 14 ++++++
 include/asm-generic/gpio.h                      | 10 ++++
 include/linux/gpio.h                            | 10 ++++
 include/linux/pinctrl/pinctrl.h                 |  3 ++
 7 files changed, 177 insertions(+), 10 deletions(-)

diff --git a/Documentation/devicetree/bindings/gpio/gpio.txt b/Documentation/devicetree/bindings/gpio/gpio.txt
index 6cec6ff20d2e..0c85bb6e3a80 100644
--- a/Documentation/devicetree/bindings/gpio/gpio.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio.txt
@@ -87,8 +87,10 @@ controllers. The gpio-ranges property described below represents this, and
 contains information structures as follows:
 
 	gpio-range-list ::= <single-gpio-range> [gpio-range-list]
-	single-gpio-range ::=
+	single-gpio-range ::= <numeric-gpio-range> | <named-gpio-range>
+	numeric-gpio-range ::=
 			<pinctrl-phandle> <gpio-base> <pinctrl-base> <count>
+	named-gpio-range ::= <pinctrl-phandle> <gpio-base> '<0 0>'
 	gpio-phandle : phandle to pin controller node.
 	gpio-base : Base GPIO ID in the GPIO controller
 	pinctrl-base : Base pinctrl pin ID in the pin controller
@@ -97,6 +99,19 @@ contains information structures as follows:
 The "pin controller node" mentioned above must conform to the bindings
 described in ../pinctrl/pinctrl-bindings.txt.
 
+In case named gpio ranges are used (ranges with both <pinctrl-base> and
+<count> set to 0), the property gpio-ranges-group-names contains one string
+for every single-gpio-range in gpio-ranges:
+	gpiorange-names-list ::= <gpiorange-name> [gpiorange-names-list]
+	gpiorange-name : Name of the pingroup associated to the GPIO range in
+			the respective pin controller.
+
+Elements of gpiorange-names-list corresponding to numeric ranges contain
+the empty string. Elements of gpiorange-names-list corresponding to named
+ranges contain the name of a pin group defined in the respective pin
+controller. The number of pins/GPIOs in the range is the number of pins in
+that pin group.
+
 Previous versions of this binding required all pin controller nodes that
 were referenced by any gpio-ranges property to contain a property named
 #gpio-range-cells with value <3>. This requirement is now deprecated.
@@ -104,7 +119,7 @@ However, that property may still exist in older device trees for
 compatibility reasons, and would still be required even in new device
 trees that need to be compatible with older software.
 
-Example:
+Example 1:
 
 	qe_pio_e: gpio-controller@1460 {
 		#gpio-cells = <2>;
@@ -117,3 +132,24 @@ Example:
 Here, a single GPIO controller has GPIOs 0..9 routed to pin controller
 pinctrl1's pins 20..29, and GPIOs 10..19 routed to pin controller pinctrl2's
 pins 50..59.
+
+Example 2:
+
+	gpio_pio_i: gpio-controller@14B0 {
+		#gpio-cells = <2>;
+		compatible = "fsl,qe-pario-bank-e", "fsl,qe-pario-bank";
+		reg = <0x1480 0x18>;
+		gpio-controller;
+		gpio-ranges =			<&pinctrl1 0 20 10>,
+						<&pinctrl2 10 0 0>,
+						<&pinctrl1 15 0 10>,
+						<&pinctrl2 25 0 0>;
+		gpio-ranges-group-names =	"",
+						"foo",
+						"",
+						"bar";
+	};
+
+Here, three GPIO ranges are defined wrt. two pin controllers. pinctrl1 GPIO
+ranges are defined using pin numbers whereas the GPIO ranges wrt. pinctrl2
+are named "foo" and "bar".
diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index 0dfaf20e4dad..e78760921bd7 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -190,10 +190,15 @@ static void of_gpiochip_add_pin_range(struct gpio_chip *chip)
 	struct of_phandle_args pinspec;
 	struct pinctrl_dev *pctldev;
 	int index = 0, ret;
+	const char *name;
+	static const char group_names_propname[] = "gpio-ranges-group-names";
+	struct property *group_names;
 
 	if (!np)
 		return;
 
+	group_names = of_find_property(np, group_names_propname, NULL);
+
 	for (;; index++) {
 		ret = of_parse_phandle_with_fixed_args(np, "gpio-ranges", 3,
 				index, &pinspec);
@@ -204,14 +209,56 @@ static void of_gpiochip_add_pin_range(struct gpio_chip *chip)
 		if (!pctldev)
 			break;
 
-		ret = gpiochip_add_pin_range(chip,
-					     pinctrl_dev_get_devname(pctldev),
-					     pinspec.args[0],
-					     pinspec.args[1],
-					     pinspec.args[2]);
-
-		if (ret)
-			break;
+		if (pinspec.args[2]) {
+			if (group_names) {
+				ret = of_property_read_string_index(np,
+						group_names_propname,
+						index, &name);
+				if (strlen(name)) {
+					pr_err("%s: Group name of numeric GPIO ranges must be the empty string.\n",
+						np->full_name);
+					break;
+				}
+			}
+			/* npins != 0: linear range */
+			ret = gpiochip_add_pin_range(chip,
+					pinctrl_dev_get_devname(pctldev),
+					pinspec.args[0],
+					pinspec.args[1],
+					pinspec.args[2]);
+			if (ret)
+				break;
+		} else {
+			/* npins == 0: special range */
+			if (pinspec.args[1]) {
+				pr_err("%s: Illegal gpio-range format.\n",
+					np->full_name);
+				break;
+			}
+
+			if (!group_names) {
+				pr_err("%s: GPIO group range requested but no %s property.\n",
+					np->full_name, group_names_propname);
+				break;
+			}
+
+			ret = of_property_read_string_index(np,
+						group_names_propname,
+						index, &name);
+			if (ret)
+				break;
+
+			if (!strlen(name)) {
+				pr_err("%s: Group name of GPIO group range cannot be the empty string.\n",
+				np->full_name);
+				break;
+			}
+
+			ret = gpiochip_add_pingroup_range(chip, pctldev,
+						pinspec.args[0], name);
+			if (ret)
+				break;
+		}
 	}
 }
 
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 86ef3461ec06..b83b7e491f76 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1319,6 +1319,53 @@ EXPORT_SYMBOL_GPL(gpiochip_find);
 
 #ifdef CONFIG_PINCTRL
 
+/**
+ * gpiochip_add_pingroup_range() - add a range for GPIO <-> pin mapping
+ * @chip: the gpiochip to add the range for
+ * @pinctrl: the dev_name() of the pin controller to map to
+ * @gpio_offset: the start offset in the current gpio_chip number space
+ * @pin_group: name of the pin group inside the pin controller
+ */
+int gpiochip_add_pingroup_range(struct gpio_chip *chip,
+			struct pinctrl_dev *pctldev,
+			unsigned int gpio_offset, const char *pin_group)
+{
+	struct gpio_pin_range *pin_range;
+	int ret;
+
+	pin_range = kzalloc(sizeof(*pin_range), GFP_KERNEL);
+	if (!pin_range) {
+		pr_err("%s: GPIO chip: failed to allocate pin ranges\n",
+				chip->label);
+		return -ENOMEM;
+	}
+
+	/* Use local offset as range ID */
+	pin_range->range.id = gpio_offset;
+	pin_range->range.gc = chip;
+	pin_range->range.name = chip->label;
+	pin_range->range.base = chip->base + gpio_offset;
+	pin_range->pctldev = pctldev;
+
+	ret = pinctrl_get_group_pins(pctldev, pin_group,
+					&pin_range->range.pins,
+					&pin_range->range.npins);
+	if (ret < 0)
+		return ret;
+
+	pinctrl_add_gpio_range(pctldev, &pin_range->range);
+
+	pr_debug("GPIO chip %s: created GPIO range %d->%d ==> %s PINGRP %s\n",
+		 chip->label, gpio_offset,
+		 gpio_offset + pin_range->range.npins - 1,
+		 pinctrl_dev_get_devname(pctldev), pin_group);
+
+	list_add_tail(&pin_range->node, &chip->pin_ranges);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(gpiochip_add_pingroup_range);
+
 /**
  * gpiochip_add_pin_range() - add a range for GPIO <-> pin mapping
  * @chip: the gpiochip to add the range for
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index 92f86ab30a13..5ee61a470016 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -462,6 +462,20 @@ struct pinctrl_dev *pinctrl_find_and_add_gpio_range(const char *devname,
 }
 EXPORT_SYMBOL_GPL(pinctrl_find_and_add_gpio_range);
 
+int pinctrl_get_group_pins(struct pinctrl_dev *pctldev, const char *pin_group,
+				const unsigned **pins, unsigned *num_pins)
+{
+	const struct pinctrl_ops *pctlops = pctldev->desc->pctlops;
+	int gs;
+
+	gs = pinctrl_get_group_selector(pctldev, pin_group);
+	if (gs < 0)
+		return gs;
+
+	return pctlops->get_group_pins(pctldev, gs, pins, num_pins);
+}
+EXPORT_SYMBOL_GPL(pinctrl_get_group_pins);
+
 /**
  * pinctrl_find_gpio_range_from_pin() - locate the GPIO range for a pin
  * @pctldev: the pin controller device to look in
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index bde646995d10..523f40525535 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -228,6 +228,9 @@ struct gpio_pin_range {
 int gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,
 			   unsigned int gpio_offset, unsigned int pin_offset,
 			   unsigned int npins);
+int gpiochip_add_pingroup_range(struct gpio_chip *chip,
+			struct pinctrl_dev *pctldev,
+			unsigned int gpio_offset, const char *pin_group);
 void gpiochip_remove_pin_ranges(struct gpio_chip *chip);
 
 #else
@@ -239,6 +242,13 @@ gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,
 {
 	return 0;
 }
+static inline int
+gpiochip_add_pingroup_range(struct gpio_chip *chip,
+			struct pinctrl_dev *pctldev,
+			unsigned int gpio_offset, const char *pin_group)
+{
+	return 0;
+}
 
 static inline void
 gpiochip_remove_pin_ranges(struct gpio_chip *chip)
diff --git a/include/linux/gpio.h b/include/linux/gpio.h
index 552e3f46e4a3..b8d0e53a802f 100644
--- a/include/linux/gpio.h
+++ b/include/linux/gpio.h
@@ -80,6 +80,7 @@ static inline int irq_to_gpio(unsigned int irq)
 #include <linux/types.h>
 #include <linux/errno.h>
 #include <linux/bug.h>
+#include <linux/pinctrl/pinctrl.h>
 
 struct device;
 struct gpio_chip;
@@ -220,6 +221,15 @@ gpiochip_add_pin_range(struct gpio_chip *chip, const char *pinctl_name,
 	return -EINVAL;
 }
 
+static inline int
+gpiochip_add_pingroup_range(struct gpio_chip *chip,
+			struct pinctrl_dev *pctldev,
+			unsigned int gpio_offset, const char *pin_group)
+{
+	WARN_ON(1);
+	return -EINVAL;
+}
+
 static inline void
 gpiochip_remove_pin_ranges(struct gpio_chip *chip)
 {
diff --git a/include/linux/pinctrl/pinctrl.h b/include/linux/pinctrl/pinctrl.h
index 5979147d2bda..fefb88663975 100644
--- a/include/linux/pinctrl/pinctrl.h
+++ b/include/linux/pinctrl/pinctrl.h
@@ -144,6 +144,9 @@ extern struct pinctrl_dev *pinctrl_find_and_add_gpio_range(const char *devname,
 extern struct pinctrl_gpio_range *
 pinctrl_find_gpio_range_from_pin(struct pinctrl_dev *pctldev,
 				 unsigned int pin);
+extern int pinctrl_get_group_pins(struct pinctrl_dev *pctldev,
+				const char *pin_group, const unsigned **pins,
+				unsigned *num_pins);
 
 #ifdef CONFIG_OF
 extern struct pinctrl_dev *of_pinctrl_get(struct device_node *np);
-- 
cgit 


From 5aad0db1c1ebb0f5be79f0adbecc16a2f0259b21 Mon Sep 17 00:00:00 2001
From: Christian Ruppert <christian.ruppert@abilis.com>
Date: Tue, 15 Oct 2013 15:39:38 +0200
Subject: pinctrl: add TB10x pin control driver

The pinmux driver of the Abilis Systems TB10x platform based on ARC700 CPUs.
Used to control the pinmux and is a prerequisite for the GPIO driver.

Signed-off-by: Christian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: Pierrick Hascoet <pierrick.hascoet@abilis.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 .../bindings/pinctrl/abilis,tb10x-iomux.txt        |  80 ++
 drivers/pinctrl/Kconfig                            |   4 +
 drivers/pinctrl/Makefile                           |   1 +
 drivers/pinctrl/pinctrl-tb10x.c                    | 886 +++++++++++++++++++++
 4 files changed, 971 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pinctrl/abilis,tb10x-iomux.txt
 create mode 100644 drivers/pinctrl/pinctrl-tb10x.c

diff --git a/Documentation/devicetree/bindings/pinctrl/abilis,tb10x-iomux.txt b/Documentation/devicetree/bindings/pinctrl/abilis,tb10x-iomux.txt
new file mode 100644
index 000000000000..2c11866221c2
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/abilis,tb10x-iomux.txt
@@ -0,0 +1,80 @@
+Abilis Systems TB10x pin controller
+===================================
+
+Required properties
+-------------------
+
+- compatible: should be "abilis,tb10x-iomux";
+- reg: should contain the physical address and size of the pin controller's
+  register range.
+
+
+Function definitions
+--------------------
+
+Functions are defined (and referenced) by sub-nodes of the pin controller.
+Every sub-node defines exactly one function (implying a set of pins).
+Every function is associated to one named pin group inside the pin controller
+driver and these names are used to associate pin group predefinitions to pin
+controller sub-nodes.
+
+Required function definition subnode properties:
+  - abilis,function: should be set to the name of the function's pin group.
+
+The following pin groups are available:
+  - GPIO ports: gpioa, gpiob, gpioc, gpiod, gpioe, gpiof, gpiog,
+                gpioh, gpioi, gpioj, gpiok, gpiol, gpiom, gpion
+  - Serial TS input ports: mis0, mis1, mis2, mis3, mis4, mis5, mis6, mis7
+  - Parallel TS input ports: mip1, mip3, mip5, mip7
+  - Serial TS output ports: mos0, mos1, mos2, mos3
+  - Parallel TS output port: mop
+  - CI+ port: ciplus
+  - CableCard (Mcard) port: mcard
+  - Smart card ports: stc0, stc1
+  - UART ports: uart0, uart1
+  - SPI ports: spi1, spi3
+  - JTAG: jtag
+
+All other ports of the chip are not multiplexed and thus not managed by this
+driver.
+
+
+GPIO ranges definition
+----------------------
+
+The named pin groups of GPIO ports can be used to define GPIO ranges as
+explained in Documentation/devicetree/bindings/gpio/gpio.txt.
+
+
+Example
+-------
+
+iomux: iomux@FF10601c {
+	compatible = "abilis,tb10x-iomux";
+	reg = <0xFF10601c 0x4>;
+	pctl_gpio_a: pctl-gpio-a {
+		abilis,function = "gpioa";
+	};
+	pctl_uart0: pctl-uart0 {
+		abilis,function = "uart0";
+	};
+};
+uart@FF100000 {
+	compatible = "snps,dw-apb-uart";
+	reg = <0xFF100000 0x100>;
+	clock-frequency = <166666666>;
+	interrupts = <25 1>;
+	reg-shift = <2>;
+	reg-io-width = <4>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pctl_uart0>;
+};
+gpioa: gpio@FF140000 {
+	compatible = "abilis,tb10x-gpio";
+	reg = <0xFF140000 0x1000>;
+	gpio-controller;
+	#gpio-cells = <2>;
+	ngpio = <3>;
+	gpio-ranges = <&iomux 0 0>;
+	gpio-ranges-group-names = "gpioa";
+};
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 85f5462460aa..e283c4970d1d 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -321,6 +321,10 @@ config PINCTRL_XWAY
 	depends on SOC_TYPE_XWAY
 	depends on PINCTRL_LANTIQ
 
+config PINCTRL_TB10X
+	bool
+	depends on ARC_PLAT_TB10X
+
 endmenu
 
 endif
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index 3d14cb855b2c..8476cd902069 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -56,6 +56,7 @@ obj-$(CONFIG_PINCTRL_S3C24XX)	+= pinctrl-s3c24xx.o
 obj-$(CONFIG_PINCTRL_S3C64XX)	+= pinctrl-s3c64xx.o
 obj-$(CONFIG_PINCTRL_XWAY)	+= pinctrl-xway.o
 obj-$(CONFIG_PINCTRL_LANTIQ)	+= pinctrl-lantiq.o
+obj-$(CONFIG_PINCTRL_TB10X)	+= pinctrl-tb10x.o
 obj-$(CONFIG_PINCTRL_ST) 	+= pinctrl-st.o
 obj-$(CONFIG_PINCTRL_VF610)	+= pinctrl-vf610.o
 
diff --git a/drivers/pinctrl/pinctrl-tb10x.c b/drivers/pinctrl/pinctrl-tb10x.c
new file mode 100644
index 000000000000..2e1ea568c9a2
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-tb10x.c
@@ -0,0 +1,886 @@
+/*
+ * Abilis Systems TB10x pin control driver
+ *
+ * Copyright (C) Abilis Systems 2012
+ *
+ * Author: Christian Ruppert <christian.ruppert@abilis.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#include <linux/stringify.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/pinctrl/machine.h>
+#include <linux/platform_device.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+
+#include "pinctrl-utils.h"
+
+#define TB10X_PORT1 (0)
+#define TB10X_PORT2 (16)
+#define TB10X_PORT3 (32)
+#define TB10X_PORT4 (48)
+#define TB10X_PORT5 (128)
+#define TB10X_PORT6 (64)
+#define TB10X_PORT7 (80)
+#define TB10X_PORT8 (96)
+#define TB10X_PORT9 (112)
+#define TB10X_GPIOS (256)
+
+#define PCFG_PORT_BITWIDTH (2)
+#define PCFG_PORT_MASK(PORT) \
+	(((1 << PCFG_PORT_BITWIDTH) - 1) << (PCFG_PORT_BITWIDTH * (PORT)))
+
+static const struct pinctrl_pin_desc tb10x_pins[] = {
+	/* Port 1 */
+	PINCTRL_PIN(TB10X_PORT1 +  0, "MICLK_S0"),
+	PINCTRL_PIN(TB10X_PORT1 +  1, "MISTRT_S0"),
+	PINCTRL_PIN(TB10X_PORT1 +  2, "MIVAL_S0"),
+	PINCTRL_PIN(TB10X_PORT1 +  3, "MDI_S0"),
+	PINCTRL_PIN(TB10X_PORT1 +  4, "GPIOA0"),
+	PINCTRL_PIN(TB10X_PORT1 +  5, "GPIOA1"),
+	PINCTRL_PIN(TB10X_PORT1 +  6, "GPIOA2"),
+	PINCTRL_PIN(TB10X_PORT1 +  7, "MDI_S1"),
+	PINCTRL_PIN(TB10X_PORT1 +  8, "MIVAL_S1"),
+	PINCTRL_PIN(TB10X_PORT1 +  9, "MISTRT_S1"),
+	PINCTRL_PIN(TB10X_PORT1 + 10, "MICLK_S1"),
+	/* Port 2 */
+	PINCTRL_PIN(TB10X_PORT2 +  0, "MICLK_S2"),
+	PINCTRL_PIN(TB10X_PORT2 +  1, "MISTRT_S2"),
+	PINCTRL_PIN(TB10X_PORT2 +  2, "MIVAL_S2"),
+	PINCTRL_PIN(TB10X_PORT2 +  3, "MDI_S2"),
+	PINCTRL_PIN(TB10X_PORT2 +  4, "GPIOC0"),
+	PINCTRL_PIN(TB10X_PORT2 +  5, "GPIOC1"),
+	PINCTRL_PIN(TB10X_PORT2 +  6, "GPIOC2"),
+	PINCTRL_PIN(TB10X_PORT2 +  7, "MDI_S3"),
+	PINCTRL_PIN(TB10X_PORT2 +  8, "MIVAL_S3"),
+	PINCTRL_PIN(TB10X_PORT2 +  9, "MISTRT_S3"),
+	PINCTRL_PIN(TB10X_PORT2 + 10, "MICLK_S3"),
+	/* Port 3 */
+	PINCTRL_PIN(TB10X_PORT3 +  0, "MICLK_S4"),
+	PINCTRL_PIN(TB10X_PORT3 +  1, "MISTRT_S4"),
+	PINCTRL_PIN(TB10X_PORT3 +  2, "MIVAL_S4"),
+	PINCTRL_PIN(TB10X_PORT3 +  3, "MDI_S4"),
+	PINCTRL_PIN(TB10X_PORT3 +  4, "GPIOE0"),
+	PINCTRL_PIN(TB10X_PORT3 +  5, "GPIOE1"),
+	PINCTRL_PIN(TB10X_PORT3 +  6, "GPIOE2"),
+	PINCTRL_PIN(TB10X_PORT3 +  7, "MDI_S5"),
+	PINCTRL_PIN(TB10X_PORT3 +  8, "MIVAL_S5"),
+	PINCTRL_PIN(TB10X_PORT3 +  9, "MISTRT_S5"),
+	PINCTRL_PIN(TB10X_PORT3 + 10, "MICLK_S5"),
+	/* Port 4 */
+	PINCTRL_PIN(TB10X_PORT4 +  0, "MICLK_S6"),
+	PINCTRL_PIN(TB10X_PORT4 +  1, "MISTRT_S6"),
+	PINCTRL_PIN(TB10X_PORT4 +  2, "MIVAL_S6"),
+	PINCTRL_PIN(TB10X_PORT4 +  3, "MDI_S6"),
+	PINCTRL_PIN(TB10X_PORT4 +  4, "GPIOG0"),
+	PINCTRL_PIN(TB10X_PORT4 +  5, "GPIOG1"),
+	PINCTRL_PIN(TB10X_PORT4 +  6, "GPIOG2"),
+	PINCTRL_PIN(TB10X_PORT4 +  7, "MDI_S7"),
+	PINCTRL_PIN(TB10X_PORT4 +  8, "MIVAL_S7"),
+	PINCTRL_PIN(TB10X_PORT4 +  9, "MISTRT_S7"),
+	PINCTRL_PIN(TB10X_PORT4 + 10, "MICLK_S7"),
+	/* Port 5 */
+	PINCTRL_PIN(TB10X_PORT5 +  0, "PC_CE1N"),
+	PINCTRL_PIN(TB10X_PORT5 +  1, "PC_CE2N"),
+	PINCTRL_PIN(TB10X_PORT5 +  2, "PC_REGN"),
+	PINCTRL_PIN(TB10X_PORT5 +  3, "PC_INPACKN"),
+	PINCTRL_PIN(TB10X_PORT5 +  4, "PC_OEN"),
+	PINCTRL_PIN(TB10X_PORT5 +  5, "PC_WEN"),
+	PINCTRL_PIN(TB10X_PORT5 +  6, "PC_IORDN"),
+	PINCTRL_PIN(TB10X_PORT5 +  7, "PC_IOWRN"),
+	PINCTRL_PIN(TB10X_PORT5 +  8, "PC_RDYIRQN"),
+	PINCTRL_PIN(TB10X_PORT5 +  9, "PC_WAITN"),
+	PINCTRL_PIN(TB10X_PORT5 + 10, "PC_A0"),
+	PINCTRL_PIN(TB10X_PORT5 + 11, "PC_A1"),
+	PINCTRL_PIN(TB10X_PORT5 + 12, "PC_A2"),
+	PINCTRL_PIN(TB10X_PORT5 + 13, "PC_A3"),
+	PINCTRL_PIN(TB10X_PORT5 + 14, "PC_A4"),
+	PINCTRL_PIN(TB10X_PORT5 + 15, "PC_A5"),
+	PINCTRL_PIN(TB10X_PORT5 + 16, "PC_A6"),
+	PINCTRL_PIN(TB10X_PORT5 + 17, "PC_A7"),
+	PINCTRL_PIN(TB10X_PORT5 + 18, "PC_A8"),
+	PINCTRL_PIN(TB10X_PORT5 + 19, "PC_A9"),
+	PINCTRL_PIN(TB10X_PORT5 + 20, "PC_A10"),
+	PINCTRL_PIN(TB10X_PORT5 + 21, "PC_A11"),
+	PINCTRL_PIN(TB10X_PORT5 + 22, "PC_A12"),
+	PINCTRL_PIN(TB10X_PORT5 + 23, "PC_A13"),
+	PINCTRL_PIN(TB10X_PORT5 + 24, "PC_A14"),
+	PINCTRL_PIN(TB10X_PORT5 + 25, "PC_D0"),
+	PINCTRL_PIN(TB10X_PORT5 + 26, "PC_D1"),
+	PINCTRL_PIN(TB10X_PORT5 + 27, "PC_D2"),
+	PINCTRL_PIN(TB10X_PORT5 + 28, "PC_D3"),
+	PINCTRL_PIN(TB10X_PORT5 + 29, "PC_D4"),
+	PINCTRL_PIN(TB10X_PORT5 + 30, "PC_D5"),
+	PINCTRL_PIN(TB10X_PORT5 + 31, "PC_D6"),
+	PINCTRL_PIN(TB10X_PORT5 + 32, "PC_D7"),
+	PINCTRL_PIN(TB10X_PORT5 + 33, "PC_MOSTRT"),
+	PINCTRL_PIN(TB10X_PORT5 + 34, "PC_MOVAL"),
+	PINCTRL_PIN(TB10X_PORT5 + 35, "PC_MDO0"),
+	PINCTRL_PIN(TB10X_PORT5 + 36, "PC_MDO1"),
+	PINCTRL_PIN(TB10X_PORT5 + 37, "PC_MDO2"),
+	PINCTRL_PIN(TB10X_PORT5 + 38, "PC_MDO3"),
+	PINCTRL_PIN(TB10X_PORT5 + 39, "PC_MDO4"),
+	PINCTRL_PIN(TB10X_PORT5 + 40, "PC_MDO5"),
+	PINCTRL_PIN(TB10X_PORT5 + 41, "PC_MDO6"),
+	PINCTRL_PIN(TB10X_PORT5 + 42, "PC_MDO7"),
+	PINCTRL_PIN(TB10X_PORT5 + 43, "PC_MISTRT"),
+	PINCTRL_PIN(TB10X_PORT5 + 44, "PC_MIVAL"),
+	PINCTRL_PIN(TB10X_PORT5 + 45, "PC_MDI0"),
+	PINCTRL_PIN(TB10X_PORT5 + 46, "PC_MDI1"),
+	PINCTRL_PIN(TB10X_PORT5 + 47, "PC_MDI2"),
+	PINCTRL_PIN(TB10X_PORT5 + 48, "PC_MDI3"),
+	PINCTRL_PIN(TB10X_PORT5 + 49, "PC_MDI4"),
+	PINCTRL_PIN(TB10X_PORT5 + 50, "PC_MDI5"),
+	PINCTRL_PIN(TB10X_PORT5 + 51, "PC_MDI6"),
+	PINCTRL_PIN(TB10X_PORT5 + 52, "PC_MDI7"),
+	PINCTRL_PIN(TB10X_PORT5 + 53, "PC_MICLK"),
+	/* Port 6 */
+	PINCTRL_PIN(TB10X_PORT6 + 0, "T_MOSTRT_S0"),
+	PINCTRL_PIN(TB10X_PORT6 + 1, "T_MOVAL_S0"),
+	PINCTRL_PIN(TB10X_PORT6 + 2, "T_MDO_S0"),
+	PINCTRL_PIN(TB10X_PORT6 + 3, "T_MOSTRT_S1"),
+	PINCTRL_PIN(TB10X_PORT6 + 4, "T_MOVAL_S1"),
+	PINCTRL_PIN(TB10X_PORT6 + 5, "T_MDO_S1"),
+	PINCTRL_PIN(TB10X_PORT6 + 6, "T_MOSTRT_S2"),
+	PINCTRL_PIN(TB10X_PORT6 + 7, "T_MOVAL_S2"),
+	PINCTRL_PIN(TB10X_PORT6 + 8, "T_MDO_S2"),
+	PINCTRL_PIN(TB10X_PORT6 + 9, "T_MOSTRT_S3"),
+	/* Port 7 */
+	PINCTRL_PIN(TB10X_PORT7 + 0, "UART0_TXD"),
+	PINCTRL_PIN(TB10X_PORT7 + 1, "UART0_RXD"),
+	PINCTRL_PIN(TB10X_PORT7 + 2, "UART0_CTS"),
+	PINCTRL_PIN(TB10X_PORT7 + 3, "UART0_RTS"),
+	PINCTRL_PIN(TB10X_PORT7 + 4, "UART1_TXD"),
+	PINCTRL_PIN(TB10X_PORT7 + 5, "UART1_RXD"),
+	PINCTRL_PIN(TB10X_PORT7 + 6, "UART1_CTS"),
+	PINCTRL_PIN(TB10X_PORT7 + 7, "UART1_RTS"),
+	/* Port 8 */
+	PINCTRL_PIN(TB10X_PORT8 + 0, "SPI3_CLK"),
+	PINCTRL_PIN(TB10X_PORT8 + 1, "SPI3_MISO"),
+	PINCTRL_PIN(TB10X_PORT8 + 2, "SPI3_MOSI"),
+	PINCTRL_PIN(TB10X_PORT8 + 3, "SPI3_SSN"),
+	/* Port 9 */
+	PINCTRL_PIN(TB10X_PORT9 + 0, "SPI1_CLK"),
+	PINCTRL_PIN(TB10X_PORT9 + 1, "SPI1_MISO"),
+	PINCTRL_PIN(TB10X_PORT9 + 2, "SPI1_MOSI"),
+	PINCTRL_PIN(TB10X_PORT9 + 3, "SPI1_SSN0"),
+	PINCTRL_PIN(TB10X_PORT9 + 4, "SPI1_SSN1"),
+	/* Unmuxed GPIOs */
+	PINCTRL_PIN(TB10X_GPIOS +  0, "GPIOB0"),
+	PINCTRL_PIN(TB10X_GPIOS +  1, "GPIOB1"),
+
+	PINCTRL_PIN(TB10X_GPIOS +  2, "GPIOD0"),
+	PINCTRL_PIN(TB10X_GPIOS +  3, "GPIOD1"),
+
+	PINCTRL_PIN(TB10X_GPIOS +  4, "GPIOF0"),
+	PINCTRL_PIN(TB10X_GPIOS +  5, "GPIOF1"),
+
+	PINCTRL_PIN(TB10X_GPIOS +  6, "GPIOH0"),
+	PINCTRL_PIN(TB10X_GPIOS +  7, "GPIOH1"),
+
+	PINCTRL_PIN(TB10X_GPIOS +  8, "GPIOI0"),
+	PINCTRL_PIN(TB10X_GPIOS +  9, "GPIOI1"),
+	PINCTRL_PIN(TB10X_GPIOS + 10, "GPIOI2"),
+	PINCTRL_PIN(TB10X_GPIOS + 11, "GPIOI3"),
+	PINCTRL_PIN(TB10X_GPIOS + 12, "GPIOI4"),
+	PINCTRL_PIN(TB10X_GPIOS + 13, "GPIOI5"),
+	PINCTRL_PIN(TB10X_GPIOS + 14, "GPIOI6"),
+	PINCTRL_PIN(TB10X_GPIOS + 15, "GPIOI7"),
+	PINCTRL_PIN(TB10X_GPIOS + 16, "GPIOI8"),
+	PINCTRL_PIN(TB10X_GPIOS + 17, "GPIOI9"),
+	PINCTRL_PIN(TB10X_GPIOS + 18, "GPIOI10"),
+	PINCTRL_PIN(TB10X_GPIOS + 19, "GPIOI11"),
+
+	PINCTRL_PIN(TB10X_GPIOS + 20, "GPION0"),
+	PINCTRL_PIN(TB10X_GPIOS + 21, "GPION1"),
+	PINCTRL_PIN(TB10X_GPIOS + 22, "GPION2"),
+	PINCTRL_PIN(TB10X_GPIOS + 23, "GPION3"),
+#define MAX_PIN (TB10X_GPIOS + 24)
+	PINCTRL_PIN(MAX_PIN,  "GPION4"),
+};
+
+
+/* Port 1 */
+static const unsigned mis0_pins[]  = {	TB10X_PORT1 + 0, TB10X_PORT1 + 1,
+					TB10X_PORT1 + 2, TB10X_PORT1 + 3};
+static const unsigned gpioa_pins[] = {	TB10X_PORT1 + 4, TB10X_PORT1 + 5,
+					TB10X_PORT1 + 6};
+static const unsigned mis1_pins[]  = {	TB10X_PORT1 + 7, TB10X_PORT1 + 8,
+					TB10X_PORT1 + 9, TB10X_PORT1 + 10};
+static const unsigned mip1_pins[]  = {	TB10X_PORT1 + 0, TB10X_PORT1 + 1,
+					TB10X_PORT1 + 2, TB10X_PORT1 + 3,
+					TB10X_PORT1 + 4, TB10X_PORT1 + 5,
+					TB10X_PORT1 + 6, TB10X_PORT1 + 7,
+					TB10X_PORT1 + 8, TB10X_PORT1 + 9,
+					TB10X_PORT1 + 10};
+
+/* Port 2 */
+static const unsigned mis2_pins[]  = {	TB10X_PORT2 + 0, TB10X_PORT2 + 1,
+					TB10X_PORT2 + 2, TB10X_PORT2 + 3};
+static const unsigned gpioc_pins[] = {	TB10X_PORT2 + 4, TB10X_PORT2 + 5,
+					TB10X_PORT2 + 6};
+static const unsigned mis3_pins[]  = {	TB10X_PORT2 + 7, TB10X_PORT2 + 8,
+					TB10X_PORT2 + 9, TB10X_PORT2 + 10};
+static const unsigned mip3_pins[]  = {	TB10X_PORT2 + 0, TB10X_PORT2 + 1,
+					TB10X_PORT2 + 2, TB10X_PORT2 + 3,
+					TB10X_PORT2 + 4, TB10X_PORT2 + 5,
+					TB10X_PORT2 + 6, TB10X_PORT2 + 7,
+					TB10X_PORT2 + 8, TB10X_PORT2 + 9,
+					TB10X_PORT2 + 10};
+
+/* Port 3 */
+static const unsigned mis4_pins[]  = {	TB10X_PORT3 + 0, TB10X_PORT3 + 1,
+					TB10X_PORT3 + 2, TB10X_PORT3 + 3};
+static const unsigned gpioe_pins[] = {	TB10X_PORT3 + 4, TB10X_PORT3 + 5,
+					TB10X_PORT3 + 6};
+static const unsigned mis5_pins[]  = {	TB10X_PORT3 + 7, TB10X_PORT3 + 8,
+					TB10X_PORT3 + 9, TB10X_PORT3 + 10};
+static const unsigned mip5_pins[]  = {	TB10X_PORT3 + 0, TB10X_PORT3 + 1,
+					TB10X_PORT3 + 2, TB10X_PORT3 + 3,
+					TB10X_PORT3 + 4, TB10X_PORT3 + 5,
+					TB10X_PORT3 + 6, TB10X_PORT3 + 7,
+					TB10X_PORT3 + 8, TB10X_PORT3 + 9,
+					TB10X_PORT3 + 10};
+
+/* Port 4 */
+static const unsigned mis6_pins[]  = {	TB10X_PORT4 + 0, TB10X_PORT4 + 1,
+					TB10X_PORT4 + 2, TB10X_PORT4 + 3};
+static const unsigned gpiog_pins[] = {	TB10X_PORT4 + 4, TB10X_PORT4 + 5,
+					TB10X_PORT4 + 6};
+static const unsigned mis7_pins[]  = {	TB10X_PORT4 + 7, TB10X_PORT4 + 8,
+					TB10X_PORT4 + 9, TB10X_PORT4 + 10};
+static const unsigned mip7_pins[]  = {	TB10X_PORT4 + 0, TB10X_PORT4 + 1,
+					TB10X_PORT4 + 2, TB10X_PORT4 + 3,
+					TB10X_PORT4 + 4, TB10X_PORT4 + 5,
+					TB10X_PORT4 + 6, TB10X_PORT4 + 7,
+					TB10X_PORT4 + 8, TB10X_PORT4 + 9,
+					TB10X_PORT4 + 10};
+
+/* Port 6 */
+static const unsigned mop_pins[] = {	TB10X_PORT6 + 0, TB10X_PORT6 + 1,
+					TB10X_PORT6 + 2, TB10X_PORT6 + 3,
+					TB10X_PORT6 + 4, TB10X_PORT6 + 5,
+					TB10X_PORT6 + 6, TB10X_PORT6 + 7,
+					TB10X_PORT6 + 8, TB10X_PORT6 + 9};
+static const unsigned mos0_pins[] = {	TB10X_PORT6 + 0, TB10X_PORT6 + 1,
+					TB10X_PORT6 + 2};
+static const unsigned mos1_pins[] = {	TB10X_PORT6 + 3, TB10X_PORT6 + 4,
+					TB10X_PORT6 + 5};
+static const unsigned mos2_pins[] = {	TB10X_PORT6 + 6, TB10X_PORT6 + 7,
+					TB10X_PORT6 + 8};
+static const unsigned mos3_pins[] = {	TB10X_PORT6 + 9};
+
+/* Port 7 */
+static const unsigned uart0_pins[] = {	TB10X_PORT7 + 0, TB10X_PORT7 + 1,
+					TB10X_PORT7 + 2, TB10X_PORT7 + 3};
+static const unsigned uart1_pins[] = {	TB10X_PORT7 + 4, TB10X_PORT7 + 5,
+					TB10X_PORT7 + 6, TB10X_PORT7 + 7};
+static const unsigned gpiol_pins[] = {	TB10X_PORT7 + 0, TB10X_PORT7 + 1,
+					TB10X_PORT7 + 2, TB10X_PORT7 + 3};
+static const unsigned gpiom_pins[] = {	TB10X_PORT7 + 4, TB10X_PORT7 + 5,
+					TB10X_PORT7 + 6, TB10X_PORT7 + 7};
+
+/* Port 8 */
+static const unsigned spi3_pins[] = {	TB10X_PORT8 + 0, TB10X_PORT8 + 1,
+					TB10X_PORT8 + 2, TB10X_PORT8 + 3};
+static const unsigned jtag_pins[] = {	TB10X_PORT8 + 0, TB10X_PORT8 + 1,
+					TB10X_PORT8 + 2, TB10X_PORT8 + 3};
+
+/* Port 9 */
+static const unsigned spi1_pins[] = {	TB10X_PORT9 + 0, TB10X_PORT9 + 1,
+					TB10X_PORT9 + 2, TB10X_PORT9 + 3,
+					TB10X_PORT9 + 4};
+static const unsigned gpion_pins[] = {	TB10X_PORT9 + 0, TB10X_PORT9 + 1,
+					TB10X_PORT9 + 2, TB10X_PORT9 + 3,
+					TB10X_PORT9 + 4};
+
+/* Port 5 */
+static const unsigned gpioj_pins[] = {	TB10X_PORT5 + 0, TB10X_PORT5 + 1,
+					TB10X_PORT5 + 2, TB10X_PORT5 + 3,
+					TB10X_PORT5 + 4, TB10X_PORT5 + 5,
+					TB10X_PORT5 + 6, TB10X_PORT5 + 7,
+					TB10X_PORT5 + 8, TB10X_PORT5 + 9,
+					TB10X_PORT5 + 10, TB10X_PORT5 + 11,
+					TB10X_PORT5 + 12, TB10X_PORT5 + 13,
+					TB10X_PORT5 + 14, TB10X_PORT5 + 15,
+					TB10X_PORT5 + 16, TB10X_PORT5 + 17,
+					TB10X_PORT5 + 18, TB10X_PORT5 + 19,
+					TB10X_PORT5 + 20, TB10X_PORT5 + 21,
+					TB10X_PORT5 + 22, TB10X_PORT5 + 23,
+					TB10X_PORT5 + 24, TB10X_PORT5 + 25,
+					TB10X_PORT5 + 26, TB10X_PORT5 + 27,
+					TB10X_PORT5 + 28, TB10X_PORT5 + 29,
+					TB10X_PORT5 + 30, TB10X_PORT5 + 31};
+static const unsigned gpiok_pins[] = {	TB10X_PORT5 + 32, TB10X_PORT5 + 33,
+					TB10X_PORT5 + 34, TB10X_PORT5 + 35,
+					TB10X_PORT5 + 36, TB10X_PORT5 + 37,
+					TB10X_PORT5 + 38, TB10X_PORT5 + 39,
+					TB10X_PORT5 + 40, TB10X_PORT5 + 41,
+					TB10X_PORT5 + 42, TB10X_PORT5 + 43,
+					TB10X_PORT5 + 44, TB10X_PORT5 + 45,
+					TB10X_PORT5 + 46, TB10X_PORT5 + 47,
+					TB10X_PORT5 + 48, TB10X_PORT5 + 49,
+					TB10X_PORT5 + 50, TB10X_PORT5 + 51,
+					TB10X_PORT5 + 52, TB10X_PORT5 + 53};
+static const unsigned ciplus_pins[] = {	TB10X_PORT5 + 0, TB10X_PORT5 + 1,
+					TB10X_PORT5 + 2, TB10X_PORT5 + 3,
+					TB10X_PORT5 + 4, TB10X_PORT5 + 5,
+					TB10X_PORT5 + 6, TB10X_PORT5 + 7,
+					TB10X_PORT5 + 8, TB10X_PORT5 + 9,
+					TB10X_PORT5 + 10, TB10X_PORT5 + 11,
+					TB10X_PORT5 + 12, TB10X_PORT5 + 13,
+					TB10X_PORT5 + 14, TB10X_PORT5 + 15,
+					TB10X_PORT5 + 16, TB10X_PORT5 + 17,
+					TB10X_PORT5 + 18, TB10X_PORT5 + 19,
+					TB10X_PORT5 + 20, TB10X_PORT5 + 21,
+					TB10X_PORT5 + 22, TB10X_PORT5 + 23,
+					TB10X_PORT5 + 24, TB10X_PORT5 + 25,
+					TB10X_PORT5 + 26, TB10X_PORT5 + 27,
+					TB10X_PORT5 + 28, TB10X_PORT5 + 29,
+					TB10X_PORT5 + 30, TB10X_PORT5 + 31,
+					TB10X_PORT5 + 32, TB10X_PORT5 + 33,
+					TB10X_PORT5 + 34, TB10X_PORT5 + 35,
+					TB10X_PORT5 + 36, TB10X_PORT5 + 37,
+					TB10X_PORT5 + 38, TB10X_PORT5 + 39,
+					TB10X_PORT5 + 40, TB10X_PORT5 + 41,
+					TB10X_PORT5 + 42, TB10X_PORT5 + 43,
+					TB10X_PORT5 + 44, TB10X_PORT5 + 45,
+					TB10X_PORT5 + 46, TB10X_PORT5 + 47,
+					TB10X_PORT5 + 48, TB10X_PORT5 + 49,
+					TB10X_PORT5 + 50, TB10X_PORT5 + 51,
+					TB10X_PORT5 + 52, TB10X_PORT5 + 53};
+static const unsigned mcard_pins[] = {	TB10X_PORT5 + 3, TB10X_PORT5 + 10,
+					TB10X_PORT5 + 11, TB10X_PORT5 + 12,
+					TB10X_PORT5 + 22, TB10X_PORT5 + 23,
+					TB10X_PORT5 + 33, TB10X_PORT5 + 35,
+					TB10X_PORT5 + 36, TB10X_PORT5 + 37,
+					TB10X_PORT5 + 38, TB10X_PORT5 + 39,
+					TB10X_PORT5 + 40, TB10X_PORT5 + 41,
+					TB10X_PORT5 + 42, TB10X_PORT5 + 43,
+					TB10X_PORT5 + 45, TB10X_PORT5 + 46,
+					TB10X_PORT5 + 47, TB10X_PORT5 + 48,
+					TB10X_PORT5 + 49, TB10X_PORT5 + 50,
+					TB10X_PORT5 + 51, TB10X_PORT5 + 52,
+					TB10X_PORT5 + 53};
+static const unsigned stc0_pins[] = {	TB10X_PORT5 + 34, TB10X_PORT5 + 35,
+					TB10X_PORT5 + 36, TB10X_PORT5 + 37,
+					TB10X_PORT5 + 38, TB10X_PORT5 + 39,
+					TB10X_PORT5 + 40};
+static const unsigned stc1_pins[] = {	TB10X_PORT5 + 25, TB10X_PORT5 + 26,
+					TB10X_PORT5 + 27, TB10X_PORT5 + 28,
+					TB10X_PORT5 + 29, TB10X_PORT5 + 30,
+					TB10X_PORT5 + 44};
+
+/* Unmuxed GPIOs */
+static const unsigned gpiob_pins[] = {	TB10X_GPIOS + 0, TB10X_GPIOS + 1};
+static const unsigned gpiod_pins[] = {	TB10X_GPIOS + 2, TB10X_GPIOS + 3};
+static const unsigned gpiof_pins[] = {	TB10X_GPIOS + 4, TB10X_GPIOS + 5};
+static const unsigned gpioh_pins[] = {	TB10X_GPIOS + 6, TB10X_GPIOS + 7};
+static const unsigned gpioi_pins[] = {	TB10X_GPIOS + 8, TB10X_GPIOS + 9,
+					TB10X_GPIOS + 10, TB10X_GPIOS + 11,
+					TB10X_GPIOS + 12, TB10X_GPIOS + 13,
+					TB10X_GPIOS + 14, TB10X_GPIOS + 15,
+					TB10X_GPIOS + 16, TB10X_GPIOS + 17,
+					TB10X_GPIOS + 18, TB10X_GPIOS + 19};
+
+struct tb10x_pinfuncgrp {
+	const char *name;
+	const unsigned int *pins;
+	const unsigned int pincnt;
+	const int port;
+	const unsigned int mode;
+	const int isgpio;
+};
+#define DEFPINFUNCGRP(NAME, PORT, MODE, ISGPIO) { \
+		.name = __stringify(NAME), \
+		.pins = NAME##_pins, .pincnt = ARRAY_SIZE(NAME##_pins), \
+		.port = (PORT), .mode = (MODE), \
+		.isgpio = (ISGPIO), \
+	}
+static const struct tb10x_pinfuncgrp tb10x_pingroups[] = {
+	DEFPINFUNCGRP(mis0,   0, 0, 0),
+	DEFPINFUNCGRP(gpioa,  0, 0, 1),
+	DEFPINFUNCGRP(mis1,   0, 0, 0),
+	DEFPINFUNCGRP(mip1,   0, 1, 0),
+	DEFPINFUNCGRP(mis2,   1, 0, 0),
+	DEFPINFUNCGRP(gpioc,  1, 0, 1),
+	DEFPINFUNCGRP(mis3,   1, 0, 0),
+	DEFPINFUNCGRP(mip3,   1, 1, 0),
+	DEFPINFUNCGRP(mis4,   2, 0, 0),
+	DEFPINFUNCGRP(gpioe,  2, 0, 1),
+	DEFPINFUNCGRP(mis5,   2, 0, 0),
+	DEFPINFUNCGRP(mip5,   2, 1, 0),
+	DEFPINFUNCGRP(mis6,   3, 0, 0),
+	DEFPINFUNCGRP(gpiog,  3, 0, 1),
+	DEFPINFUNCGRP(mis7,   3, 0, 0),
+	DEFPINFUNCGRP(mip7,   3, 1, 0),
+	DEFPINFUNCGRP(gpioj,  4, 0, 1),
+	DEFPINFUNCGRP(gpiok,  4, 0, 1),
+	DEFPINFUNCGRP(ciplus, 4, 1, 0),
+	DEFPINFUNCGRP(mcard,  4, 2, 0),
+	DEFPINFUNCGRP(stc0,   4, 3, 0),
+	DEFPINFUNCGRP(stc1,   4, 3, 0),
+	DEFPINFUNCGRP(mop,    5, 0, 0),
+	DEFPINFUNCGRP(mos0,   5, 1, 0),
+	DEFPINFUNCGRP(mos1,   5, 1, 0),
+	DEFPINFUNCGRP(mos2,   5, 1, 0),
+	DEFPINFUNCGRP(mos3,   5, 1, 0),
+	DEFPINFUNCGRP(uart0,  6, 0, 0),
+	DEFPINFUNCGRP(uart1,  6, 0, 0),
+	DEFPINFUNCGRP(gpiol,  6, 1, 1),
+	DEFPINFUNCGRP(gpiom,  6, 1, 1),
+	DEFPINFUNCGRP(spi3,   7, 0, 0),
+	DEFPINFUNCGRP(jtag,   7, 1, 0),
+	DEFPINFUNCGRP(spi1,   8, 0, 0),
+	DEFPINFUNCGRP(gpion,  8, 1, 1),
+	DEFPINFUNCGRP(gpiob, -1, 0, 1),
+	DEFPINFUNCGRP(gpiod, -1, 0, 1),
+	DEFPINFUNCGRP(gpiof, -1, 0, 1),
+	DEFPINFUNCGRP(gpioh, -1, 0, 1),
+	DEFPINFUNCGRP(gpioi, -1, 0, 1),
+};
+#undef DEFPINFUNCGRP
+
+struct tb10x_of_pinfunc {
+	const char *name;
+	const char *group;
+};
+
+#define TB10X_PORTS (9)
+
+/**
+ * struct tb10x_port - state of an I/O port
+ * @mode: Node this port is currently in.
+ * @count: Number of enabled functions which require this port to be
+ *         configured in @mode.
+ */
+struct tb10x_port {
+	unsigned int mode;
+	unsigned int count;
+};
+
+/**
+ * struct tb10x_pinctrl - TB10x pin controller internal state
+ * @pctl: pointer to the pinctrl_dev structure of this pin controller.
+ * @base: register set base address.
+ * @pingroups: pointer to an array of the pin groups this driver manages.
+ * @pinfuncgrpcnt: number of pingroups in @pingroups.
+ * @pinfuncs: pointer to an array of pin functions this driver manages.
+ * @pinfuncnt: number of pin functions in @pinfuncs.
+ * @mutex: mutex for exclusive access to a pin controller's state.
+ * @ports: current state of each port.
+ * @gpios: Indicates if a given pin is currently used as GPIO (1) or not (0).
+ */
+struct tb10x_pinctrl {
+	struct pinctrl_dev *pctl;
+	void *base;
+	const struct tb10x_pinfuncgrp *pingroups;
+	unsigned int pinfuncgrpcnt;
+	struct tb10x_of_pinfunc *pinfuncs;
+	unsigned int pinfuncnt;
+	struct mutex mutex;
+	struct tb10x_port ports[TB10X_PORTS];
+	DECLARE_BITMAP(gpios, MAX_PIN + 1);
+};
+
+static inline void tb10x_pinctrl_set_config(struct tb10x_pinctrl *state,
+				unsigned int port, unsigned int mode)
+{
+	u32 pcfg;
+
+	if (state->ports[port].count)
+		return;
+
+	state->ports[port].mode = mode;
+
+	pcfg = ioread32(state->base) & ~(PCFG_PORT_MASK(port));
+	pcfg |= (mode << (PCFG_PORT_BITWIDTH * port)) & PCFG_PORT_MASK(port);
+	iowrite32(pcfg, state->base);
+}
+
+static inline unsigned int tb10x_pinctrl_get_config(
+				struct tb10x_pinctrl *state,
+				unsigned int port)
+{
+	return (ioread32(state->base) & PCFG_PORT_MASK(port))
+		>> (PCFG_PORT_BITWIDTH * port);
+}
+
+static int tb10x_get_groups_count(struct pinctrl_dev *pctl)
+{
+	struct tb10x_pinctrl *state = pinctrl_dev_get_drvdata(pctl);
+	return state->pinfuncgrpcnt;
+}
+
+static const char *tb10x_get_group_name(struct pinctrl_dev *pctl, unsigned n)
+{
+	struct tb10x_pinctrl *state = pinctrl_dev_get_drvdata(pctl);
+	return state->pingroups[n].name;
+}
+
+static int tb10x_get_group_pins(struct pinctrl_dev *pctl, unsigned n,
+				unsigned const **pins,
+				unsigned * const num_pins)
+{
+	struct tb10x_pinctrl *state = pinctrl_dev_get_drvdata(pctl);
+
+	*pins = state->pingroups[n].pins;
+	*num_pins = state->pingroups[n].pincnt;
+
+	return 0;
+}
+
+static int tb10x_dt_node_to_map(struct pinctrl_dev *pctl,
+				struct device_node *np_config,
+				struct pinctrl_map **map, unsigned *num_maps)
+{
+	const char *string;
+	unsigned reserved_maps = 0;
+	int ret = 0;
+
+	if (of_property_read_string(np_config, "abilis,function", &string)) {
+		pr_err("%s: No abilis,function property in device tree.\n",
+			np_config->full_name);
+		return -EINVAL;
+	}
+
+	*map = NULL;
+	*num_maps = 0;
+
+	ret = pinctrl_utils_reserve_map(pctl, map, &reserved_maps,
+					num_maps, 1);
+	if (ret)
+		goto out;
+
+	ret = pinctrl_utils_add_map_mux(pctl, map, &reserved_maps,
+					num_maps, string, np_config->name);
+
+out:
+	return ret;
+}
+
+static struct pinctrl_ops tb10x_pinctrl_ops = {
+	.get_groups_count = tb10x_get_groups_count,
+	.get_group_name   = tb10x_get_group_name,
+	.get_group_pins   = tb10x_get_group_pins,
+	.dt_node_to_map   = tb10x_dt_node_to_map,
+	.dt_free_map      = pinctrl_utils_dt_free_map,
+};
+
+static int tb10x_get_functions_count(struct pinctrl_dev *pctl)
+{
+	struct tb10x_pinctrl *state = pinctrl_dev_get_drvdata(pctl);
+	return state->pinfuncnt;
+}
+
+static const char *tb10x_get_function_name(struct pinctrl_dev *pctl,
+					unsigned n)
+{
+	struct tb10x_pinctrl *state = pinctrl_dev_get_drvdata(pctl);
+	return state->pinfuncs[n].name;
+}
+
+static int tb10x_get_function_groups(struct pinctrl_dev *pctl,
+				unsigned n, const char * const **groups,
+				unsigned * const num_groups)
+{
+	struct tb10x_pinctrl *state = pinctrl_dev_get_drvdata(pctl);
+
+	*groups = &state->pinfuncs[n].group;
+	*num_groups = 1;
+
+	return 0;
+}
+
+static int tb10x_gpio_request_enable(struct pinctrl_dev *pctl,
+					struct pinctrl_gpio_range *range,
+					unsigned pin)
+{
+	struct tb10x_pinctrl *state = pinctrl_dev_get_drvdata(pctl);
+	int muxport = -1;
+	int muxmode = -1;
+	int i;
+
+	mutex_lock(&state->mutex);
+
+	/*
+	 * Figure out to which port the requested GPIO belongs and how to
+	 * configure that port.
+	 * This loop also checks for pin conflicts between GPIOs and other
+	 * functions.
+	 */
+	for (i = 0; i < state->pinfuncgrpcnt; i++) {
+		const struct tb10x_pinfuncgrp *pfg = &state->pingroups[i];
+		unsigned int port = pfg->port;
+		unsigned int mode = pfg->mode;
+		int j;
+
+		/*
+		 * Skip pin groups which are always mapped and don't need
+		 * to be configured.
+		 */
+		if (port < 0)
+			continue;
+
+		for (j = 0; j < pfg->pincnt; j++) {
+			if (pin == pfg->pins[j]) {
+				if (pfg->isgpio) {
+					/*
+					 * Remember the GPIO-only setting of
+					 * the port this pin belongs to.
+					 */
+					muxport = port;
+					muxmode = mode;
+				} else if (state->ports[port].count
+					&& (state->ports[port].mode == mode)) {
+					/*
+					 * Error: The requested pin is already
+					 * used for something else.
+					 */
+					mutex_unlock(&state->mutex);
+					return -EBUSY;
+				}
+				break;
+			}
+		}
+	}
+
+	/*
+	 * If we haven't returned an error at this point, the GPIO pin is not
+	 * used by another function and the GPIO request can be granted:
+	 * Register pin as being used as GPIO so we don't allocate it to
+	 * another function later.
+	 */
+	set_bit(pin, state->gpios);
+
+	/*
+	 * Potential conflicts between GPIOs and pin functions were caught
+	 * earlier in this function and tb10x_pinctrl_set_config will do the
+	 * Right Thing, either configure the port in GPIO only mode or leave
+	 * another mode compatible with this GPIO request untouched.
+	 */
+	if (muxport >= 0)
+		tb10x_pinctrl_set_config(state, muxport, muxmode);
+
+	mutex_unlock(&state->mutex);
+
+	return 0;
+}
+
+static void tb10x_gpio_disable_free(struct pinctrl_dev *pctl,
+					struct pinctrl_gpio_range *range,
+					unsigned pin)
+{
+	struct tb10x_pinctrl *state = pinctrl_dev_get_drvdata(pctl);
+
+	mutex_lock(&state->mutex);
+
+	clear_bit(pin, state->gpios);
+
+	mutex_unlock(&state->mutex);
+}
+
+static int tb10x_pctl_enable(struct pinctrl_dev *pctl,
+			unsigned func_selector, unsigned group_selector)
+{
+	struct tb10x_pinctrl *state = pinctrl_dev_get_drvdata(pctl);
+	const struct tb10x_pinfuncgrp *grp = &state->pingroups[group_selector];
+	int i;
+
+	if (grp->port < 0)
+		return 0;
+
+	mutex_lock(&state->mutex);
+
+	/*
+	 * Check if the requested function is compatible with previously
+	 * requested functions.
+	 */
+	if (state->ports[grp->port].count
+			&& (state->ports[grp->port].mode != grp->mode)) {
+		mutex_unlock(&state->mutex);
+		return -EBUSY;
+	}
+
+	/*
+	 * Check if the requested function is compatible with previously
+	 * requested GPIOs.
+	 */
+	for (i = 0; i < grp->pincnt; i++)
+		if (test_bit(grp->pins[i], state->gpios)) {
+			mutex_unlock(&state->mutex);
+			return -EBUSY;
+		}
+
+	tb10x_pinctrl_set_config(state, grp->port, grp->mode);
+
+	state->ports[grp->port].count++;
+
+	mutex_unlock(&state->mutex);
+
+	return 0;
+}
+
+static void tb10x_pctl_disable(struct pinctrl_dev *pctl,
+			unsigned func_selector, unsigned group_selector)
+{
+	struct tb10x_pinctrl *state = pinctrl_dev_get_drvdata(pctl);
+	const struct tb10x_pinfuncgrp *grp = &state->pingroups[group_selector];
+
+	if (grp->port < 0)
+		return;
+
+	mutex_lock(&state->mutex);
+
+	state->ports[grp->port].count--;
+
+	mutex_unlock(&state->mutex);
+}
+
+static struct pinmux_ops tb10x_pinmux_ops = {
+	.get_functions_count = tb10x_get_functions_count,
+	.get_function_name = tb10x_get_function_name,
+	.get_function_groups = tb10x_get_function_groups,
+	.gpio_request_enable = tb10x_gpio_request_enable,
+	.gpio_disable_free = tb10x_gpio_disable_free,
+	.enable = tb10x_pctl_enable,
+	.disable = tb10x_pctl_disable,
+};
+
+static struct pinctrl_desc tb10x_pindesc = {
+	.name = "TB10x",
+	.pins = tb10x_pins,
+	.npins = ARRAY_SIZE(tb10x_pins),
+	.owner = THIS_MODULE,
+	.pctlops = &tb10x_pinctrl_ops,
+	.pmxops  = &tb10x_pinmux_ops,
+};
+
+static int tb10x_pinctrl_probe(struct platform_device *pdev)
+{
+	int ret = -EINVAL;
+	struct resource *mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	struct device *dev = &pdev->dev;
+	struct device_node *of_node = dev->of_node;
+	struct device_node *child;
+	struct tb10x_pinctrl *state;
+	int i;
+
+	if (!of_node) {
+		dev_err(dev, "No device tree node found.\n");
+		return -EINVAL;
+	}
+
+	if (!mem) {
+		dev_err(dev, "No memory resource defined.\n");
+		return -EINVAL;
+	}
+
+	state = devm_kzalloc(dev, sizeof(struct tb10x_pinctrl) +
+					of_get_child_count(of_node)
+					* sizeof(struct tb10x_of_pinfunc),
+				GFP_KERNEL);
+	if (!state)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, state);
+	state->pinfuncs = (struct tb10x_of_pinfunc *)(state + 1);
+	mutex_init(&state->mutex);
+
+	state->base = devm_ioremap_resource(dev, mem);
+	if (!state->base) {
+		dev_err(dev, "Request register region failed.\n");
+		ret = -EBUSY;
+		goto fail;
+	}
+
+	state->pingroups = tb10x_pingroups;
+	state->pinfuncgrpcnt = ARRAY_SIZE(tb10x_pingroups);
+
+	for (i = 0; i < TB10X_PORTS; i++)
+		state->ports[i].mode = tb10x_pinctrl_get_config(state, i);
+
+	for_each_child_of_node(of_node, child) {
+		const char *name;
+
+		if (!of_property_read_string(child, "abilis,function",
+						&name)) {
+			state->pinfuncs[state->pinfuncnt].name = child->name;
+			state->pinfuncs[state->pinfuncnt].group = name;
+			state->pinfuncnt++;
+		}
+	}
+
+	state->pctl = pinctrl_register(&tb10x_pindesc, dev, state);
+	if (IS_ERR(state->pctl)) {
+		dev_err(dev, "could not register TB10x pin driver\n");
+		ret = PTR_ERR(state->pctl);
+		goto fail;
+	}
+
+	return 0;
+
+fail:
+	mutex_destroy(&state->mutex);
+	return ret;
+}
+
+static int tb10x_pinctrl_remove(struct platform_device *pdev)
+{
+	struct tb10x_pinctrl *state = platform_get_drvdata(pdev);
+
+	pinctrl_unregister(state->pctl);
+	mutex_destroy(&state->mutex);
+
+	return 0;
+}
+
+
+static const struct of_device_id tb10x_pinctrl_dt_ids[] = {
+	{ .compatible = "abilis,tb10x-iomux" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, tb10x_pinctrl_dt_ids);
+
+static struct platform_driver tb10x_pinctrl_pdrv = {
+	.probe   = tb10x_pinctrl_probe,
+	.remove  = tb10x_pinctrl_remove,
+	.driver  = {
+		.name  = "tb10x_pinctrl",
+		.of_match_table = of_match_ptr(tb10x_pinctrl_dt_ids),
+		.owner = THIS_MODULE
+	}
+};
+
+static int __init tb10x_iopinctrl_init(void)
+{
+	return platform_driver_register(&tb10x_pinctrl_pdrv);
+}
+
+static void __exit tb10x_iopinctrl_exit(void)
+{
+	platform_driver_unregister(&tb10x_pinctrl_pdrv);
+}
+
+MODULE_AUTHOR("Christian Ruppert <christian.ruppert@abilis.com>");
+MODULE_LICENSE("GPL");
+module_init(tb10x_iopinctrl_init);
+module_exit(tb10x_iopinctrl_exit);
-- 
cgit 


From 6d0a4ed2b90a12e1403d3e7d9d8c2cc7fdc301b5 Mon Sep 17 00:00:00 2001
From: Roel Kluin <roel.kluin@gmail.com>
Date: Mon, 14 Oct 2013 01:27:27 +0200
Subject: pinctrl: dove: unset twsi option3 for gconfig as well

This fixes a typo which left twsi config3 option enabled.

Cc: stable@vger.kernel.org
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/mvebu/pinctrl-dove.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/mvebu/pinctrl-dove.c b/drivers/pinctrl/mvebu/pinctrl-dove.c
index 29f7e4fc7ca5..360b9b236b34 100644
--- a/drivers/pinctrl/mvebu/pinctrl-dove.c
+++ b/drivers/pinctrl/mvebu/pinctrl-dove.c
@@ -335,7 +335,7 @@ static int dove_twsi_ctrl_set(struct mvebu_mpp_ctrl *ctrl,
 	unsigned long gcfg2 = readl(DOVE_GLOBAL_CONFIG_2);
 
 	gcfg1 &= ~DOVE_TWSI_ENABLE_OPTION1;
-	gcfg2 &= ~(DOVE_TWSI_ENABLE_OPTION2 | DOVE_TWSI_ENABLE_OPTION2);
+	gcfg2 &= ~(DOVE_TWSI_ENABLE_OPTION2 | DOVE_TWSI_ENABLE_OPTION3);
 
 	switch (config) {
 	case 1:
-- 
cgit 


From a282926d658209ed1acee51a1ccc897ac169fb41 Mon Sep 17 00:00:00 2001
From: Heiko Stübner <heiko@sntech.de>
Date: Wed, 16 Oct 2013 01:07:20 +0200
Subject: pinctrl: rockchip: separate different sub-types more

Further investigation of the different Rockchip SoCs showed that
the differences especially in the pull settings are quite deep.
As further patches will show, the register layout for the pulls of
the rk3188 is quite strange. Also it is to assume, that later
Rockchip SoCs may introduce even more quirks in this regard, making
it hard to support all of those using the current generic pull_*
variables.

Therefore move the driver to hold the type of controller in an enum
and do the handling according to it in the necessary places. Also
instead of calculating the register in the get and set pull functions
move it to a type-specific callback.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-rockchip.c | 105 ++++++++++++++++++++-----------------
 1 file changed, 57 insertions(+), 48 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index e0718b7c4abc..df155f9b2432 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -56,6 +56,12 @@
 #define GPIO_EXT_PORT		0x50
 #define GPIO_LS_SYNC		0x60
 
+enum rockchip_pinctrl_type {
+	RK2928,
+	RK3066B,
+	RK3188,
+};
+
 /**
  * @reg_base: register base of the gpio bank
  * @clk: clock of the gpio bank
@@ -98,18 +104,16 @@ struct rockchip_pin_bank {
 	}
 
 /**
- * @pull_auto: some SoCs don't allow pulls to be specified as up or down, but
- *	       instead decide this automatically based on the pad-type.
  */
 struct rockchip_pin_ctrl {
 	struct rockchip_pin_bank	*pin_banks;
 	u32				nr_banks;
 	u32				nr_pins;
 	char				*label;
+	enum rockchip_pinctrl_type	type;
 	int				mux_offset;
-	int				pull_offset;
-	bool				pull_auto;
-	int				pull_bank_stride;
+	void	(*pull_calc_reg)(struct rockchip_pin_bank *bank, int pin_num,
+				 void __iomem **reg, u8 *bit);
 };
 
 struct rockchip_pin_config {
@@ -354,6 +358,22 @@ static void rockchip_set_mux(struct rockchip_pin_bank *bank, int pin, int mux)
 	spin_unlock_irqrestore(&bank->slock, flags);
 }
 
+#define RK2928_PULL_OFFSET		0x118
+#define RK2928_PULL_PINS_PER_REG	16
+#define RK2928_PULL_BANK_STRIDE		8
+
+static void rk2928_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
+				    int pin_num, void __iomem **reg, u8 *bit)
+{
+	struct rockchip_pinctrl *info = bank->drvdata;
+
+	*reg = info->reg_base + RK2928_PULL_OFFSET;
+	*reg += bank->bank_num * RK2928_PULL_BANK_STRIDE;
+	*reg += (pin_num / RK2928_PULL_PINS_PER_REG) * 4;
+
+	*bit = pin_num % RK2928_PULL_PINS_PER_REG;
+};
+
 static int rockchip_get_pull(struct rockchip_pin_bank *bank, int pin_num)
 {
 	struct rockchip_pinctrl *info = bank->drvdata;
@@ -362,23 +382,22 @@ static int rockchip_get_pull(struct rockchip_pin_bank *bank, int pin_num)
 	u8 bit;
 
 	/* rk3066b does support any pulls */
-	if (!ctrl->pull_offset)
+	if (ctrl->type == RK3066B)
 		return PIN_CONFIG_BIAS_DISABLE;
 
-	reg = info->reg_base + ctrl->pull_offset;
-
-	if (ctrl->pull_auto) {
-		reg += bank->bank_num * ctrl->pull_bank_stride;
-		reg += (pin_num / 16) * 4;
-		bit = pin_num % 16;
-
+	switch (ctrl->type) {
+	case RK2928:
+		ctrl->pull_calc_reg(bank, pin_num, &reg, &bit);
 		return !(readl_relaxed(reg) & BIT(bit))
 				? PIN_CONFIG_BIAS_PULL_PIN_DEFAULT
 				: PIN_CONFIG_BIAS_DISABLE;
-	} else {
+	case RK3188:
 		dev_err(info->dev, "pull support for rk31xx not implemented\n");
 		return -EIO;
-	}
+	default:
+		dev_err(info->dev, "unsupported pinctrl type\n");
+		return -EINVAL;
+	};
 }
 
 static int rockchip_set_pull(struct rockchip_pin_bank *bank,
@@ -395,21 +414,18 @@ static int rockchip_set_pull(struct rockchip_pin_bank *bank,
 		 bank->bank_num, pin_num, pull);
 
 	/* rk3066b does support any pulls */
-	if (!ctrl->pull_offset)
+	if (ctrl->type == RK3066B)
 		return pull ? -EINVAL : 0;
 
-	reg = info->reg_base + ctrl->pull_offset;
-
-	if (ctrl->pull_auto) {
+	switch (ctrl->type) {
+	case RK2928:
 		if (pull != PIN_CONFIG_BIAS_PULL_PIN_DEFAULT &&
 					pull != PIN_CONFIG_BIAS_DISABLE) {
 			dev_err(info->dev, "only PIN_DEFAULT and DISABLE allowed\n");
 			return -EINVAL;
 		}
 
-		reg += bank->bank_num * ctrl->pull_bank_stride;
-		reg += (pin_num / 16) * 4;
-		bit = pin_num % 16;
+		ctrl->pull_calc_reg(bank, pin_num, &reg, &bit);
 
 		spin_lock_irqsave(&bank->slock, flags);
 
@@ -419,14 +435,13 @@ static int rockchip_set_pull(struct rockchip_pin_bank *bank,
 		writel(data, reg);
 
 		spin_unlock_irqrestore(&bank->slock, flags);
-	} else {
-		if (pull == PIN_CONFIG_BIAS_PULL_PIN_DEFAULT) {
-			dev_err(info->dev, "pull direction (up/down) needs to be specified\n");
-			return -EINVAL;
-		}
-
+		break;
+	case RK3188:
 		dev_err(info->dev, "pull support for rk31xx not implemented\n");
 		return -EIO;
+	default:
+		dev_err(info->dev, "unsupported pinctrl type\n");
+		return -EINVAL;
 	}
 
 	return 0;
@@ -556,20 +571,17 @@ static const struct pinmux_ops rockchip_pmx_ops = {
 static bool rockchip_pinconf_pull_valid(struct rockchip_pin_ctrl *ctrl,
 					enum pin_config_param pull)
 {
-	/* rk3066b does support any pulls */
-	if (!ctrl->pull_offset)
+	switch (ctrl->type) {
+	case RK2928:
+		return (pull == PIN_CONFIG_BIAS_PULL_PIN_DEFAULT ||
+					pull == PIN_CONFIG_BIAS_DISABLE);
+	case RK3066B:
 		return pull ? false : true;
-
-	if (ctrl->pull_auto) {
-		if (pull != PIN_CONFIG_BIAS_PULL_PIN_DEFAULT &&
-					pull != PIN_CONFIG_BIAS_DISABLE)
-			return false;
-	} else {
-		if (pull == PIN_CONFIG_BIAS_PULL_PIN_DEFAULT)
-			return false;
+	case RK3188:
+		return (pull != PIN_CONFIG_BIAS_PULL_PIN_DEFAULT);
 	}
 
-	return true;
+	return false;
 }
 
 /* set the pin config settings for a specified pin */
@@ -1315,10 +1327,9 @@ static struct rockchip_pin_ctrl rk2928_pin_ctrl = {
 		.pin_banks		= rk2928_pin_banks,
 		.nr_banks		= ARRAY_SIZE(rk2928_pin_banks),
 		.label			= "RK2928-GPIO",
+		.type			= RK2928,
 		.mux_offset		= 0xa8,
-		.pull_offset		= 0x118,
-		.pull_auto		= 1,
-		.pull_bank_stride	= 8,
+		.pull_calc_reg		= rk2928_calc_pull_reg_and_bit,
 };
 
 static struct rockchip_pin_bank rk3066a_pin_banks[] = {
@@ -1334,10 +1345,9 @@ static struct rockchip_pin_ctrl rk3066a_pin_ctrl = {
 		.pin_banks		= rk3066a_pin_banks,
 		.nr_banks		= ARRAY_SIZE(rk3066a_pin_banks),
 		.label			= "RK3066a-GPIO",
+		.type			= RK2928,
 		.mux_offset		= 0xa8,
-		.pull_offset		= 0x118,
-		.pull_auto		= 1,
-		.pull_bank_stride	= 8,
+		.pull_calc_reg		= rk2928_calc_pull_reg_and_bit,
 };
 
 static struct rockchip_pin_bank rk3066b_pin_banks[] = {
@@ -1351,8 +1361,8 @@ static struct rockchip_pin_ctrl rk3066b_pin_ctrl = {
 		.pin_banks	= rk3066b_pin_banks,
 		.nr_banks	= ARRAY_SIZE(rk3066b_pin_banks),
 		.label		= "RK3066b-GPIO",
+		.type		= RK3066B,
 		.mux_offset	= 0x60,
-		.pull_offset	= -EINVAL,
 };
 
 static struct rockchip_pin_bank rk3188_pin_banks[] = {
@@ -1366,9 +1376,8 @@ static struct rockchip_pin_ctrl rk3188_pin_ctrl = {
 		.pin_banks		= rk3188_pin_banks,
 		.nr_banks		= ARRAY_SIZE(rk3188_pin_banks),
 		.label			= "RK3188-GPIO",
+		.type			= RK3188,
 		.mux_offset		= 0x68,
-		.pull_offset		= 0x164,
-		.pull_bank_stride	= 16,
 };
 
 static const struct of_device_id rockchip_pinctrl_dt_match[] = {
-- 
cgit 


From 65fca613b00aa2aaa008d40304e00b76f4693f60 Mon Sep 17 00:00:00 2001
From: Heiko Stübner <heiko@sntech.de>
Date: Wed, 16 Oct 2013 01:07:49 +0200
Subject: pinctrl: rockchip: add support for multiple bank types

There are Rockchip SoCs, namely the rk3188, that combine a set of
regular banks with banks that need special handling for some settings.

Therefore add the possibility for the driver to handle more than one
bank type.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-rockchip.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index df155f9b2432..efca1165e955 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -62,6 +62,10 @@ enum rockchip_pinctrl_type {
 	RK3188,
 };
 
+enum rockchip_pin_bank_type {
+	COMMON_BANK,
+};
+
 /**
  * @reg_base: register base of the gpio bank
  * @clk: clock of the gpio bank
@@ -86,6 +90,7 @@ struct rockchip_pin_bank {
 	u8				nr_pins;
 	char				*name;
 	u8				bank_num;
+	enum rockchip_pin_bank_type	bank_type;
 	bool				valid;
 	struct device_node		*of_node;
 	struct rockchip_pinctrl		*drvdata;
@@ -668,7 +673,10 @@ static const struct pinconf_ops rockchip_pinconf_ops = {
 	.pin_config_set			= rockchip_pinconf_set,
 };
 
-static const char *gpio_compat = "rockchip,gpio-bank";
+static const struct of_device_id rockchip_bank_match[] = {
+	{ .compatible = "rockchip,gpio-bank" },
+	{},
+};
 
 static void rockchip_pinctrl_child_count(struct rockchip_pinctrl *info,
 						struct device_node *np)
@@ -676,7 +684,7 @@ static void rockchip_pinctrl_child_count(struct rockchip_pinctrl *info,
 	struct device_node *child;
 
 	for_each_child_of_node(np, child) {
-		if (of_device_is_compatible(child, gpio_compat))
+		if (of_match_node(rockchip_bank_match, child))
 			continue;
 
 		info->nfunctions++;
@@ -819,8 +827,9 @@ static int rockchip_pinctrl_parse_dt(struct platform_device *pdev,
 	i = 0;
 
 	for_each_child_of_node(np, child) {
-		if (of_device_is_compatible(child, gpio_compat))
+		if (of_match_node(rockchip_bank_match, child))
 			continue;
+
 		ret = rockchip_pinctrl_parse_functions(child, info, i++);
 		if (ret) {
 			dev_err(&pdev->dev, "failed to parse function\n");
@@ -1217,6 +1226,8 @@ static int rockchip_get_bank_data(struct rockchip_pin_bank *bank,
 	if (IS_ERR(bank->reg_base))
 		return PTR_ERR(bank->reg_base);
 
+	bank->bank_type = COMMON_BANK;
+
 	bank->irq = irq_of_parse_and_map(bank->of_node, 0);
 
 	bank->clk = of_clk_get(bank->of_node, 0);
-- 
cgit 


From d1358f90e3b63530a5e0cf4ffa7560b359e9d638 Mon Sep 17 00:00:00 2001
From: Heiko Stübner <heiko@sntech.de>
Date: Wed, 16 Oct 2013 01:08:11 +0200
Subject: pinctrl: rockchip: remove redundant check

The check limiting bias options to supported ones is already
done thru rockchip_pinconf_pull_valid. Therefore this check is
redundant and can be removed.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-rockchip.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index efca1165e955..91027dd19f89 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -424,12 +424,6 @@ static int rockchip_set_pull(struct rockchip_pin_bank *bank,
 
 	switch (ctrl->type) {
 	case RK2928:
-		if (pull != PIN_CONFIG_BIAS_PULL_PIN_DEFAULT &&
-					pull != PIN_CONFIG_BIAS_DISABLE) {
-			dev_err(info->dev, "only PIN_DEFAULT and DISABLE allowed\n");
-			return -EINVAL;
-		}
-
 		ctrl->pull_calc_reg(bank, pin_num, &reg, &bit);
 
 		spin_lock_irqsave(&bank->slock, flags);
-- 
cgit 


From 6ca5274d1d1258b0e84bc1a0d67ca160d8658e5a Mon Sep 17 00:00:00 2001
From: Heiko Stübner <heiko@sntech.de>
Date: Wed, 16 Oct 2013 01:08:42 +0200
Subject: pinctrl: rockchip: add rk3188 specifics

Besides the pull registers sitting in a separate place, the rk3188 also
has the peculiarity that the pull registers of the first bank are split
and the first half is sitting in the register space of the pmu.

Therefore this adds a special bank-type for the first bank, to handle
the two register sources.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 .../bindings/pinctrl/rockchip,pinctrl.txt          |  46 +++++++-
 drivers/pinctrl/pinctrl-rockchip.c                 | 119 +++++++++++++++++++--
 2 files changed, 157 insertions(+), 8 deletions(-)

diff --git a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt
index b0fb1018d7ad..f378d342aae4 100644
--- a/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt
+++ b/Documentation/devicetree/bindings/pinctrl/rockchip,pinctrl.txt
@@ -21,10 +21,13 @@ defined as gpio sub-nodes of the pinmux controller.
 Required properties for iomux controller:
   - compatible: one of "rockchip,rk2928-pinctrl", "rockchip,rk3066a-pinctrl"
 		       "rockchip,rk3066b-pinctrl", "rockchip,rk3188-pinctrl"
+  - reg: first element is the general register space of the iomux controller
+	 second element is the separate pull register space of the rk3188
 
 Required properties for gpio sub nodes:
-  - compatible: "rockchip,gpio-bank"
+  - compatible: "rockchip,gpio-bank", "rockchip,rk3188-gpio-bank0"
   - reg: register of the gpio bank (different than the iomux registerset)
+         second element: separate pull register for rk3188 bank0
   - interrupts: base interrupt of the gpio bank in the interrupt controller
   - clocks: clock that drives this bank
   - gpio-controller: identifies the node as a gpio controller and pin bank.
@@ -95,3 +98,44 @@ uart2: serial@20064000 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart2_xfer>;
 };
+
+Example for rk3188:
+
+	pinctrl@20008000 {
+		compatible = "rockchip,rk3188-pinctrl";
+		reg = <0x20008000 0xa0>,
+		      <0x20008164 0x1a0>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		gpio0: gpio0@0x2000a000 {
+			compatible = "rockchip,rk3188-gpio-bank0";
+			reg = <0x2000a000 0x100>,
+			      <0x20004064 0x8>;
+			interrupts = <GIC_SPI 54 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk_gates8 9>;
+
+			gpio-controller;
+			#gpio-cells = <2>;
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+		};
+
+		gpio1: gpio1@0x2003c000 {
+			compatible = "rockchip,gpio-bank";
+			reg = <0x2003c000 0x100>;
+			interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&clk_gates8 10>;
+
+			gpio-controller;
+			#gpio-cells = <2>;
+
+			interrupt-controller;
+			#interrupt-cells = <2>;
+		};
+
+		...
+
+	};
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 91027dd19f89..f5e53a723152 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -64,10 +64,12 @@ enum rockchip_pinctrl_type {
 
 enum rockchip_pin_bank_type {
 	COMMON_BANK,
+	RK3188_BANK0,
 };
 
 /**
  * @reg_base: register base of the gpio bank
+ * @reg_pull: optional separate register for additional pull settings
  * @clk: clock of the gpio bank
  * @irq: interrupt of the gpio bank
  * @pin_base: first pin number
@@ -84,6 +86,7 @@ enum rockchip_pin_bank_type {
  */
 struct rockchip_pin_bank {
 	void __iomem			*reg_base;
+	void __iomem			*reg_pull;
 	struct clk			*clk;
 	int				irq;
 	u32				pin_base;
@@ -157,6 +160,7 @@ struct rockchip_pmx_func {
 
 struct rockchip_pinctrl {
 	void __iomem			*reg_base;
+	void __iomem			*reg_pull;
 	struct device			*dev;
 	struct rockchip_pin_ctrl	*ctrl;
 	struct pinctrl_desc		pctl;
@@ -379,25 +383,71 @@ static void rk2928_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
 	*bit = pin_num % RK2928_PULL_PINS_PER_REG;
 };
 
+#define RK3188_PULL_BITS_PER_PIN	2
+#define RK3188_PULL_PINS_PER_REG	8
+#define RK3188_PULL_BANK_STRIDE		16
+
+static void rk3188_calc_pull_reg_and_bit(struct rockchip_pin_bank *bank,
+				    int pin_num, void __iomem **reg, u8 *bit)
+{
+	struct rockchip_pinctrl *info = bank->drvdata;
+
+	/* The first 12 pins of the first bank are located elsewhere */
+	if (bank->bank_type == RK3188_BANK0 && pin_num < 12) {
+		*reg = bank->reg_pull +
+				((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
+		*bit = pin_num % RK3188_PULL_PINS_PER_REG;
+		*bit *= RK3188_PULL_BITS_PER_PIN;
+	} else {
+		*reg = info->reg_pull - 4;
+		*reg += bank->bank_num * RK3188_PULL_BANK_STRIDE;
+		*reg += ((pin_num / RK3188_PULL_PINS_PER_REG) * 4);
+
+		/*
+		 * The bits in these registers have an inverse ordering
+		 * with the lowest pin being in bits 15:14 and the highest
+		 * pin in bits 1:0
+		 */
+		*bit = 7 - (pin_num % RK3188_PULL_PINS_PER_REG);
+		*bit *= RK3188_PULL_BITS_PER_PIN;
+	}
+}
+
 static int rockchip_get_pull(struct rockchip_pin_bank *bank, int pin_num)
 {
 	struct rockchip_pinctrl *info = bank->drvdata;
 	struct rockchip_pin_ctrl *ctrl = info->ctrl;
 	void __iomem *reg;
 	u8 bit;
+	u32 data;
 
 	/* rk3066b does support any pulls */
 	if (ctrl->type == RK3066B)
 		return PIN_CONFIG_BIAS_DISABLE;
 
+	ctrl->pull_calc_reg(bank, pin_num, &reg, &bit);
+
 	switch (ctrl->type) {
 	case RK2928:
-		ctrl->pull_calc_reg(bank, pin_num, &reg, &bit);
 		return !(readl_relaxed(reg) & BIT(bit))
 				? PIN_CONFIG_BIAS_PULL_PIN_DEFAULT
 				: PIN_CONFIG_BIAS_DISABLE;
 	case RK3188:
-		dev_err(info->dev, "pull support for rk31xx not implemented\n");
+		data = readl_relaxed(reg) >> bit;
+		data &= (1 << RK3188_PULL_BITS_PER_PIN) - 1;
+
+		switch (data) {
+		case 0:
+			return PIN_CONFIG_BIAS_DISABLE;
+		case 1:
+			return PIN_CONFIG_BIAS_PULL_UP;
+		case 2:
+			return PIN_CONFIG_BIAS_PULL_DOWN;
+		case 3:
+			return PIN_CONFIG_BIAS_BUS_HOLD;
+		}
+
+		dev_err(info->dev, "unknown pull setting\n");
 		return -EIO;
 	default:
 		dev_err(info->dev, "unsupported pinctrl type\n");
@@ -422,10 +472,10 @@ static int rockchip_set_pull(struct rockchip_pin_bank *bank,
 	if (ctrl->type == RK3066B)
 		return pull ? -EINVAL : 0;
 
+	ctrl->pull_calc_reg(bank, pin_num, &reg, &bit);
+
 	switch (ctrl->type) {
 	case RK2928:
-		ctrl->pull_calc_reg(bank, pin_num, &reg, &bit);
-
 		spin_lock_irqsave(&bank->slock, flags);
 
 		data = BIT(bit + 16);
@@ -436,8 +486,33 @@ static int rockchip_set_pull(struct rockchip_pin_bank *bank,
 		spin_unlock_irqrestore(&bank->slock, flags);
 		break;
 	case RK3188:
-		dev_err(info->dev, "pull support for rk31xx not implemented\n");
-		return -EIO;
+		spin_lock_irqsave(&bank->slock, flags);
+
+		/* enable the write to the equivalent lower bits */
+		data = ((1 << RK3188_PULL_BITS_PER_PIN) - 1) << (bit + 16);
+
+		switch (pull) {
+		case PIN_CONFIG_BIAS_DISABLE:
+			break;
+		case PIN_CONFIG_BIAS_PULL_UP:
+			data |= (1 << bit);
+			break;
+		case PIN_CONFIG_BIAS_PULL_DOWN:
+			data |= (2 << bit);
+			break;
+		case PIN_CONFIG_BIAS_BUS_HOLD:
+			data |= (3 << bit);
+			break;
+		default:
+			dev_err(info->dev, "unsupported pull setting %d\n",
+				pull);
+			return -EINVAL;
+		}
+
+		writel(data, reg);
+
+		spin_unlock_irqrestore(&bank->slock, flags);
+		break;
 	default:
 		dev_err(info->dev, "unsupported pinctrl type\n");
 		return -EINVAL;
@@ -608,6 +683,7 @@ static int rockchip_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
 		case PIN_CONFIG_BIAS_PULL_UP:
 		case PIN_CONFIG_BIAS_PULL_DOWN:
 		case PIN_CONFIG_BIAS_PULL_PIN_DEFAULT:
+		case PIN_CONFIG_BIAS_BUS_HOLD:
 			if (!rockchip_pinconf_pull_valid(info->ctrl, param))
 				return -ENOTSUPP;
 
@@ -646,6 +722,7 @@ static int rockchip_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin,
 	case PIN_CONFIG_BIAS_PULL_UP:
 	case PIN_CONFIG_BIAS_PULL_DOWN:
 	case PIN_CONFIG_BIAS_PULL_PIN_DEFAULT:
+	case PIN_CONFIG_BIAS_BUS_HOLD:
 		if (!rockchip_pinconf_pull_valid(info->ctrl, param))
 			return -ENOTSUPP;
 
@@ -669,6 +746,7 @@ static const struct pinconf_ops rockchip_pinconf_ops = {
 
 static const struct of_device_id rockchip_bank_match[] = {
 	{ .compatible = "rockchip,gpio-bank" },
+	{ .compatible = "rockchip,rk3188-gpio-bank0" },
 	{},
 };
 
@@ -1220,7 +1298,25 @@ static int rockchip_get_bank_data(struct rockchip_pin_bank *bank,
 	if (IS_ERR(bank->reg_base))
 		return PTR_ERR(bank->reg_base);
 
-	bank->bank_type = COMMON_BANK;
+	/*
+	 * special case, where parts of the pull setting-registers are
+	 * part of the PMU register space
+	 */
+	if (of_device_is_compatible(bank->of_node,
+				    "rockchip,rk3188-gpio-bank0")) {
+		bank->bank_type = RK3188_BANK0;
+
+		if (of_address_to_resource(bank->of_node, 1, &res)) {
+			dev_err(dev, "cannot find IO resource for bank\n");
+			return -ENOENT;
+		}
+
+		bank->reg_pull = devm_ioremap_resource(dev, &res);
+		if (IS_ERR(bank->reg_pull))
+			return PTR_ERR(bank->reg_pull);
+	} else {
+		bank->bank_type = COMMON_BANK;
+	}
 
 	bank->irq = irq_of_parse_and_map(bank->of_node, 0);
 
@@ -1306,6 +1402,14 @@ static int rockchip_pinctrl_probe(struct platform_device *pdev)
 	if (IS_ERR(info->reg_base))
 		return PTR_ERR(info->reg_base);
 
+	/* The RK3188 has its pull registers in a separate place */
+	if (ctrl->type == RK3188) {
+		res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+		info->reg_pull = devm_ioremap_resource(&pdev->dev, res);
+		if (IS_ERR(info->reg_base))
+			return PTR_ERR(info->reg_base);
+	}
+
 	ret = rockchip_gpiolib_register(pdev, info);
 	if (ret)
 		return ret;
@@ -1383,6 +1487,7 @@ static struct rockchip_pin_ctrl rk3188_pin_ctrl = {
 		.label			= "RK3188-GPIO",
 		.type			= RK3188,
 		.mux_offset		= 0x68,
+		.pull_calc_reg		= rk3188_calc_pull_reg_and_bit,
 };
 
 static const struct of_device_id rockchip_pinctrl_dt_match[] = {
-- 
cgit 


From 5a92750133ffd998e92e4f7ed874fae61d67aeed Mon Sep 17 00:00:00 2001
From: Heiko Stübner <heiko@sntech.de>
Date: Wed, 16 Oct 2013 01:09:08 +0200
Subject: pinctrl: rockchip: emulate both edge triggered interrupts

The gpio interrupt controller on Rockchip socs can do edge triggers only
for single edges but not both. Nevertheless a lot of gpio users rely on
the availability of both-edge triggered interrupts - i.e. gpio-keys.

Therefore implement a solution similar to pinctrl-coh901 re-setting the
triggering edge depending on the gpio value in the interrupt demuxer.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-rockchip.c | 61 +++++++++++++++++++++++++++++++++-----
 1 file changed, 54 insertions(+), 7 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index f5e53a723152..e939c28cbf1f 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -101,7 +101,7 @@ struct rockchip_pin_bank {
 	struct gpio_chip		gpio_chip;
 	struct pinctrl_gpio_range	grange;
 	spinlock_t			slock;
-
+	u32				toggle_edge_mode;
 };
 
 #define PIN_BANK(id, pins, label)			\
@@ -1078,7 +1078,9 @@ static void rockchip_irq_demux(unsigned int irq, struct irq_desc *desc)
 {
 	struct irq_chip *chip = irq_get_chip(irq);
 	struct rockchip_pin_bank *bank = irq_get_handler_data(irq);
+	u32 polarity = 0, data = 0;
 	u32 pend;
+	bool edge_changed = false;
 
 	dev_dbg(bank->drvdata->dev, "got irq for bank %s\n", bank->name);
 
@@ -1086,6 +1088,12 @@ static void rockchip_irq_demux(unsigned int irq, struct irq_desc *desc)
 
 	pend = readl_relaxed(bank->reg_base + GPIO_INT_STATUS);
 
+	if (bank->toggle_edge_mode) {
+		polarity = readl_relaxed(bank->reg_base +
+					 GPIO_INT_POLARITY);
+		data = readl_relaxed(bank->reg_base + GPIO_EXT_PORT);
+	}
+
 	while (pend) {
 		unsigned int virq;
 
@@ -1100,9 +1108,30 @@ static void rockchip_irq_demux(unsigned int irq, struct irq_desc *desc)
 
 		dev_dbg(bank->drvdata->dev, "handling irq %d\n", irq);
 
+		/*
+		 * Triggering IRQ on both rising and falling edge
+		 * needs manual intervention.
+		 */
+		if (bank->toggle_edge_mode & BIT(irq)) {
+			if (data & BIT(irq))
+				polarity &= ~BIT(irq);
+			else
+				polarity |= BIT(irq);
+
+			edge_changed = true;
+		}
+
 		generic_handle_irq(virq);
 	}
 
+	if (bank->toggle_edge_mode && edge_changed) {
+		/* Interrupt params should only be set with ints disabled */
+		data = readl_relaxed(bank->reg_base + GPIO_INTEN);
+		writel_relaxed(0, bank->reg_base + GPIO_INTEN);
+		writel(polarity, bank->reg_base + GPIO_INT_POLARITY);
+		writel(data, bank->reg_base + GPIO_INTEN);
+	}
+
 	chained_irq_exit(chip, desc);
 }
 
@@ -1115,6 +1144,12 @@ static int rockchip_irq_set_type(struct irq_data *d, unsigned int type)
 	u32 level;
 	u32 data;
 
+	/* make sure the pin is configured as gpio input */
+	rockchip_set_mux(bank, d->hwirq, RK_FUNC_GPIO);
+	data = readl_relaxed(bank->reg_base + GPIO_SWPORT_DDR);
+	data &= ~mask;
+	writel_relaxed(data, bank->reg_base + GPIO_SWPORT_DDR);
+
 	if (type & IRQ_TYPE_EDGE_BOTH)
 		__irq_set_handler_locked(d->irq, handle_edge_irq);
 	else
@@ -1126,19 +1161,37 @@ static int rockchip_irq_set_type(struct irq_data *d, unsigned int type)
 	polarity = readl_relaxed(gc->reg_base + GPIO_INT_POLARITY);
 
 	switch (type) {
+	case IRQ_TYPE_EDGE_BOTH:
+		bank->toggle_edge_mode |= mask;
+		level |= mask;
+
+		/*
+		 * Determine gpio state. If 1 next interrupt should be falling
+		 * otherwise rising.
+		 */
+		data = readl(bank->reg_base + GPIO_EXT_PORT);
+		if (data & mask)
+			polarity &= ~mask;
+		else
+			polarity |= mask;
+		break;
 	case IRQ_TYPE_EDGE_RISING:
+		bank->toggle_edge_mode &= ~mask;
 		level |= mask;
 		polarity |= mask;
 		break;
 	case IRQ_TYPE_EDGE_FALLING:
+		bank->toggle_edge_mode &= ~mask;
 		level |= mask;
 		polarity &= ~mask;
 		break;
 	case IRQ_TYPE_LEVEL_HIGH:
+		bank->toggle_edge_mode &= ~mask;
 		level &= ~mask;
 		polarity |= mask;
 		break;
 	case IRQ_TYPE_LEVEL_LOW:
+		bank->toggle_edge_mode &= ~mask;
 		level &= ~mask;
 		polarity &= ~mask;
 		break;
@@ -1152,12 +1205,6 @@ static int rockchip_irq_set_type(struct irq_data *d, unsigned int type)
 
 	irq_gc_unlock(gc);
 
-	/* make sure the pin is configured as gpio input */
-	rockchip_set_mux(bank, d->hwirq, RK_FUNC_GPIO);
-	data = readl_relaxed(bank->reg_base + GPIO_SWPORT_DDR);
-	data &= ~mask;
-	writel_relaxed(data, bank->reg_base + GPIO_SWPORT_DDR);
-
 	return 0;
 }
 
-- 
cgit 


From fe61052ae97a33c229a3ae7ad29e0c9b9ccada02 Mon Sep 17 00:00:00 2001
From: Christian Ruppert <christian.ruppert@abilis.com>
Date: Wed, 16 Oct 2013 14:56:54 +0200
Subject: pinctrl: add documentation for pinctrl_get_group_pins()

This patch adds a short description of how to use the newly added
pinctrl_get_group_pins function to the pinctrl documentation.

Signed-off-by: Christian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 Documentation/pinctrl.txt | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/pinctrl.txt b/Documentation/pinctrl.txt
index c0ffd30eb55e..a7929cb47e7c 100644
--- a/Documentation/pinctrl.txt
+++ b/Documentation/pinctrl.txt
@@ -358,7 +358,12 @@ static struct pinctrl_gpio_range gpio_range = {
 	.gc = &chip;
 };
 
-In this case the pin_base property will be ignored.
+In this case the pin_base property will be ignored. If the name of a pin
+group is known, the pins and npins elements of the above structure can be
+initialised using the function pinctrl_get_group_pins(), e.g. for pin
+group "foo":
+
+pinctrl_get_group_pins(pctl, "foo", &gpio_range.pins, &gpio_range.npins);
 
 When GPIO-specific functions in the pin control subsystem are called, these
 ranges will be used to look up the appropriate pin controller by inspecting
-- 
cgit 


From 9536c8d2da8059b00775bd9c5a84816b608cf6f4 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Tue, 15 Oct 2013 12:14:04 +0200
Subject: perf/x86: Optimize intel_pmu_pebs_fixup_ip()

There's been reports of high NMI handler overhead, highlighted by
such kernel messages:

  [ 3697.380195] perf samples too long (10009 > 10000), lowering kernel.perf_event_max_sample_rate to 13000
  [ 3697.389509] INFO: NMI handler (perf_event_nmi_handler) took too long to run: 9.331 msecs

Don Zickus analyzed the source of the overhead and reported:

 > While there are a few places that are causing latencies, for now I focused on
 > the longest one first.  It seems to be 'copy_user_from_nmi'
 >
 > intel_pmu_handle_irq ->
 >	intel_pmu_drain_pebs_nhm ->
 >		__intel_pmu_drain_pebs_nhm ->
 >			__intel_pmu_pebs_event ->
 >				intel_pmu_pebs_fixup_ip ->
 >					copy_from_user_nmi
 >
 > In intel_pmu_pebs_fixup_ip(), if the while-loop goes over 50, the sum of
 > all the copy_from_user_nmi latencies seems to go over 1,000,000 cycles
 > (there are some cases where only 10 iterations are needed to go that high
 > too, but in generall over 50 or so).  At this point copy_user_from_nmi
 > seems to account for over 90% of the nmi latency.

The solution to that is to avoid having to call copy_from_user_nmi() for
every instruction.

Since we already limit the max basic block size, we can easily
pre-allocate a piece of memory to copy the entire thing into in one
go.

Don reported this test result:

 > Your patch made a huge difference in improvement.  The
 > copy_from_user_nmi() no longer hits the million of cycles.  I still
 > have a batch of 100,000-300,000 cycles.  My longest NMI paths used
 > to be dominated by copy_from_user_nmi, now it is not (I have to dig
 > up the new hot path).

Reported-and-tested-by: Don Zickus <dzickus@redhat.com>
Cc: jmario@redhat.com
Cc: acme@infradead.org
Cc: dave.hansen@linux.intel.com
Cc: eranian@google.com
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131016105755.GX10651@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/cpu/perf_event_intel_ds.c | 52 ++++++++++++++++++++++---------
 1 file changed, 38 insertions(+), 14 deletions(-)

diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c
index 32e9ed81cd00..c1760ff3c757 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_ds.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c
@@ -12,6 +12,7 @@
 
 #define BTS_BUFFER_SIZE		(PAGE_SIZE << 4)
 #define PEBS_BUFFER_SIZE	PAGE_SIZE
+#define PEBS_FIXUP_SIZE		PAGE_SIZE
 
 /*
  * pebs_record_32 for p4 and core not supported
@@ -228,12 +229,14 @@ void fini_debug_store_on_cpu(int cpu)
 	wrmsr_on_cpu(cpu, MSR_IA32_DS_AREA, 0, 0);
 }
 
+static DEFINE_PER_CPU(void *, insn_buffer);
+
 static int alloc_pebs_buffer(int cpu)
 {
 	struct debug_store *ds = per_cpu(cpu_hw_events, cpu).ds;
 	int node = cpu_to_node(cpu);
 	int max, thresh = 1; /* always use a single PEBS record */
-	void *buffer;
+	void *buffer, *ibuffer;
 
 	if (!x86_pmu.pebs)
 		return 0;
@@ -242,6 +245,19 @@ static int alloc_pebs_buffer(int cpu)
 	if (unlikely(!buffer))
 		return -ENOMEM;
 
+	/*
+	 * HSW+ already provides us the eventing ip; no need to allocate this
+	 * buffer then.
+	 */
+	if (x86_pmu.intel_cap.pebs_format < 2) {
+		ibuffer = kzalloc_node(PEBS_FIXUP_SIZE, GFP_KERNEL, node);
+		if (!ibuffer) {
+			kfree(buffer);
+			return -ENOMEM;
+		}
+		per_cpu(insn_buffer, cpu) = ibuffer;
+	}
+
 	max = PEBS_BUFFER_SIZE / x86_pmu.pebs_record_size;
 
 	ds->pebs_buffer_base = (u64)(unsigned long)buffer;
@@ -262,6 +278,9 @@ static void release_pebs_buffer(int cpu)
 	if (!ds || !x86_pmu.pebs)
 		return;
 
+	kfree(per_cpu(insn_buffer, cpu));
+	per_cpu(insn_buffer, cpu) = NULL;
+
 	kfree((void *)(unsigned long)ds->pebs_buffer_base);
 	ds->pebs_buffer_base = 0;
 }
@@ -729,6 +748,7 @@ static int intel_pmu_pebs_fixup_ip(struct pt_regs *regs)
 	unsigned long old_to, to = cpuc->lbr_entries[0].to;
 	unsigned long ip = regs->ip;
 	int is_64bit = 0;
+	void *kaddr;
 
 	/*
 	 * We don't need to fixup if the PEBS assist is fault like
@@ -752,7 +772,7 @@ static int intel_pmu_pebs_fixup_ip(struct pt_regs *regs)
 	 * unsigned math, either ip is before the start (impossible) or
 	 * the basic block is larger than 1 page (sanity)
 	 */
-	if ((ip - to) > PAGE_SIZE)
+	if ((ip - to) > PEBS_FIXUP_SIZE)
 		return 0;
 
 	/*
@@ -763,29 +783,33 @@ static int intel_pmu_pebs_fixup_ip(struct pt_regs *regs)
 		return 1;
 	}
 
+	if (!kernel_ip(ip)) {
+		int size, bytes;
+		u8 *buf = this_cpu_read(insn_buffer);
+
+		size = ip - to; /* Must fit our buffer, see above */
+		bytes = copy_from_user_nmi(buf, (void __user *)to, size);
+		if (bytes != size)
+			return 0;
+
+		kaddr = buf;
+	} else {
+		kaddr = (void *)to;
+	}
+
 	do {
 		struct insn insn;
-		u8 buf[MAX_INSN_SIZE];
-		void *kaddr;
 
 		old_to = to;
-		if (!kernel_ip(ip)) {
-			int bytes, size = MAX_INSN_SIZE;
-
-			bytes = copy_from_user_nmi(buf, (void __user *)to, size);
-			if (bytes != size)
-				return 0;
-
-			kaddr = buf;
-		} else
-			kaddr = (void *)to;
 
 #ifdef CONFIG_X86_64
 		is_64bit = kernel_ip(to) || !test_thread_flag(TIF_IA32);
 #endif
 		insn_init(&insn, kaddr, is_64bit);
 		insn_get_length(&insn);
+
 		to += insn.length;
+		kaddr += insn.length;
 	} while (to < ip);
 
 	if (to == ip) {
-- 
cgit 


From d195608acc78db293468694ed5225a39e440429d Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <b.brezillon@overkiz.com>
Date: Wed, 7 Aug 2013 12:14:26 +0200
Subject: ARM: at91/dt: split sam9x5 peripheral definitions

This patch splits the sam9x5 peripheral definitions into:
- a common base for all sam9x5 SoCs (at91sam9x5.dtsi)
- several optional peripheral definitions which will be included by specific
  sam9x5 SoCs (at91sam9x5_'periph name'.dtsi)

This provides a better representation of the real hardware (drop unneeded
dt nodes) and avoids future peripheral id conflict (lcdc and isi both use
peripheral id 25).

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
 arch/arm/boot/dts/at91sam9g25.dtsi       |  2 +
 arch/arm/boot/dts/at91sam9g35.dtsi       |  1 +
 arch/arm/boot/dts/at91sam9x25.dtsi       | 24 ++----------
 arch/arm/boot/dts/at91sam9x35.dtsi       |  1 +
 arch/arm/boot/dts/at91sam9x5.dtsi        | 67 --------------------------------
 arch/arm/boot/dts/at91sam9x5_macb0.dtsi  | 56 ++++++++++++++++++++++++++
 arch/arm/boot/dts/at91sam9x5_macb1.dtsi  | 44 +++++++++++++++++++++
 arch/arm/boot/dts/at91sam9x5_usart3.dtsi | 51 ++++++++++++++++++++++++
 8 files changed, 158 insertions(+), 88 deletions(-)
 create mode 100644 arch/arm/boot/dts/at91sam9x5_macb0.dtsi
 create mode 100644 arch/arm/boot/dts/at91sam9x5_macb1.dtsi
 create mode 100644 arch/arm/boot/dts/at91sam9x5_usart3.dtsi

diff --git a/arch/arm/boot/dts/at91sam9g25.dtsi b/arch/arm/boot/dts/at91sam9g25.dtsi
index b4ec6fe53fc7..17b879990914 100644
--- a/arch/arm/boot/dts/at91sam9g25.dtsi
+++ b/arch/arm/boot/dts/at91sam9g25.dtsi
@@ -7,6 +7,8 @@
  */
 
 #include "at91sam9x5.dtsi"
+#include "at91sam9x5_usart3.dtsi"
+#include "at91sam9x5_macb0.dtsi"
 
 / {
 	model = "Atmel AT91SAM9G25 SoC";
diff --git a/arch/arm/boot/dts/at91sam9g35.dtsi b/arch/arm/boot/dts/at91sam9g35.dtsi
index bebf9f55614b..e35c2fcf8298 100644
--- a/arch/arm/boot/dts/at91sam9g35.dtsi
+++ b/arch/arm/boot/dts/at91sam9g35.dtsi
@@ -7,6 +7,7 @@
  */
 
 #include "at91sam9x5.dtsi"
+#include "at91sam9x5_macb0.dtsi"
 
 / {
 	model = "Atmel AT91SAM9G35 SoC";
diff --git a/arch/arm/boot/dts/at91sam9x25.dtsi b/arch/arm/boot/dts/at91sam9x25.dtsi
index 49e94aba938f..c2554219f7a4 100644
--- a/arch/arm/boot/dts/at91sam9x25.dtsi
+++ b/arch/arm/boot/dts/at91sam9x25.dtsi
@@ -7,6 +7,9 @@
  */
 
 #include "at91sam9x5.dtsi"
+#include "at91sam9x5_usart3.dtsi"
+#include "at91sam9x5_macb0.dtsi"
+#include "at91sam9x5_macb1.dtsi"
 
 / {
 	model = "Atmel AT91SAM9X25 SoC";
@@ -22,27 +25,6 @@
 				       0x80000000 0xfffd0000 0xb83fffff  /* pioC */
 				       0x003fffff 0x003f8000 0x00000000  /* pioD */
 				      >;
-
-				macb1 {
-					pinctrl_macb1_rmii: macb1_rmii-0 {
-						atmel,pins =
-							<AT91_PIOC 16 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PC16 periph B */
-							 AT91_PIOC 18 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PC18 periph B */
-							 AT91_PIOC 19 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PC19 periph B */
-							 AT91_PIOC 20 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PC20 periph B */
-							 AT91_PIOC 21 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PC21 periph B */
-							 AT91_PIOC 27 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PC27 periph B */
-							 AT91_PIOC 28 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PC28 periph B */
-							 AT91_PIOC 29 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PC29 periph B */
-							 AT91_PIOC 30 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PC30 periph B */
-							 AT91_PIOC 31 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PC31 periph B */
-					};
-				};
-			};
-
-			macb1: ethernet@f8030000 {
-				pinctrl-names = "default";
-				pinctrl-0 = <&pinctrl_macb1_rmii>;
 			};
 		};
 	};
diff --git a/arch/arm/boot/dts/at91sam9x35.dtsi b/arch/arm/boot/dts/at91sam9x35.dtsi
index 1a3d525a1f5d..8eac66ce0ab7 100644
--- a/arch/arm/boot/dts/at91sam9x35.dtsi
+++ b/arch/arm/boot/dts/at91sam9x35.dtsi
@@ -7,6 +7,7 @@
  */
 
 #include "at91sam9x5.dtsi"
+#include "at91sam9x5_macb0.dtsi"
 
 / {
 	model = "Atmel AT91SAM9X35 SoC";
diff --git a/arch/arm/boot/dts/at91sam9x5.dtsi b/arch/arm/boot/dts/at91sam9x5.dtsi
index cf78ac0b04b1..417899002c41 100644
--- a/arch/arm/boot/dts/at91sam9x5.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5.dtsi
@@ -206,29 +206,6 @@
 					};
 				};
 
-				usart3 {
-					pinctrl_usart3: usart3-0 {
-						atmel,pins =
-							<AT91_PIOC 22 AT91_PERIPH_B AT91_PINCTRL_PULL_UP	/* PC22 periph B with pullup */
-							 AT91_PIOC 23 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PC23 periph B */
-					};
-
-					pinctrl_usart3_rts: usart3_rts-0 {
-						atmel,pins =
-							<AT91_PIOC 24 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PC24 periph B */
-					};
-
-					pinctrl_usart3_cts: usart3_cts-0 {
-						atmel,pins =
-							<AT91_PIOC 25 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PC25 periph B */
-					};
-
-					pinctrl_usart3_sck: usart3_sck-0 {
-						atmel,pins =
-							<AT91_PIOC 26 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PC26 periph B */
-					};
-				};
-
 				uart0 {
 					pinctrl_uart0: uart0-0 {
 						atmel,pins =
@@ -277,34 +254,6 @@
 					};
 				};
 
-				macb0 {
-					pinctrl_macb0_rmii: macb0_rmii-0 {
-						atmel,pins =
-							<AT91_PIOB 0 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB0 periph A */
-							 AT91_PIOB 1 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB1 periph A */
-							 AT91_PIOB 2 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB2 periph A */
-							 AT91_PIOB 3 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB3 periph A */
-							 AT91_PIOB 4 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB4 periph A */
-							 AT91_PIOB 5 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB5 periph A */
-							 AT91_PIOB 6 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB6 periph A */
-							 AT91_PIOB 7 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB7 periph A */
-							 AT91_PIOB 9 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB9 periph A */
-							 AT91_PIOB 10 AT91_PERIPH_A AT91_PINCTRL_NONE>;	/* PB10 periph A */
-					};
-
-					pinctrl_macb0_rmii_mii: macb0_rmii_mii-0 {
-						atmel,pins =
-							<AT91_PIOB 8 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB8 periph A */
-							 AT91_PIOB 11 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB11 periph A */
-							 AT91_PIOB 12 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB12 periph A */
-							 AT91_PIOB 13 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB13 periph A */
-							 AT91_PIOB 14 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB14 periph A */
-							 AT91_PIOB 15 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB15 periph A */
-							 AT91_PIOB 16 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB16 periph A */
-							 AT91_PIOB 17 AT91_PERIPH_A AT91_PINCTRL_NONE>;	/* PB17 periph A */
-					};
-				};
-
 				mmc0 {
 					pinctrl_mmc0_slot0_clk_cmd_dat0: mmc0_slot0_clk_cmd_dat0-0 {
 						atmel,pins =
@@ -608,22 +557,6 @@
 				status = "disabled";
 			};
 
-			macb0: ethernet@f802c000 {
-				compatible = "cdns,at32ap7000-macb", "cdns,macb";
-				reg = <0xf802c000 0x100>;
-				interrupts = <24 IRQ_TYPE_LEVEL_HIGH 3>;
-				pinctrl-names = "default";
-				pinctrl-0 = <&pinctrl_macb0_rmii>;
-				status = "disabled";
-			};
-
-			macb1: ethernet@f8030000 {
-				compatible = "cdns,at32ap7000-macb", "cdns,macb";
-				reg = <0xf8030000 0x100>;
-				interrupts = <27 IRQ_TYPE_LEVEL_HIGH 3>;
-				status = "disabled";
-			};
-
 			i2c0: i2c@f8010000 {
 				compatible = "atmel,at91sam9x5-i2c";
 				reg = <0xf8010000 0x100>;
diff --git a/arch/arm/boot/dts/at91sam9x5_macb0.dtsi b/arch/arm/boot/dts/at91sam9x5_macb0.dtsi
new file mode 100644
index 000000000000..55731ffba764
--- /dev/null
+++ b/arch/arm/boot/dts/at91sam9x5_macb0.dtsi
@@ -0,0 +1,56 @@
+/*
+ * at91sam9x5_macb0.dtsi - Device Tree Include file for AT91SAM9x5 SoC with 1
+ * Ethernet interface.
+ *
+ * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
+ *
+ * Licensed under GPLv2.
+ */
+
+#include <dt-bindings/pinctrl/at91.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	ahb {
+		apb {
+			pinctrl@fffff400 {
+				macb0 {
+					pinctrl_macb0_rmii: macb0_rmii-0 {
+						atmel,pins =
+							<AT91_PIOB 0 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB0 periph A */
+							 AT91_PIOB 1 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB1 periph A */
+							 AT91_PIOB 2 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB2 periph A */
+							 AT91_PIOB 3 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB3 periph A */
+							 AT91_PIOB 4 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB4 periph A */
+							 AT91_PIOB 5 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB5 periph A */
+							 AT91_PIOB 6 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB6 periph A */
+							 AT91_PIOB 7 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB7 periph A */
+							 AT91_PIOB 9 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB9 periph A */
+							 AT91_PIOB 10 AT91_PERIPH_A AT91_PINCTRL_NONE>;	/* PB10 periph A */
+					};
+
+					pinctrl_macb0_rmii_mii: macb0_rmii_mii-0 {
+						atmel,pins =
+							<AT91_PIOB 8 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB8 periph A */
+							 AT91_PIOB 11 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB11 periph A */
+							 AT91_PIOB 12 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB12 periph A */
+							 AT91_PIOB 13 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB13 periph A */
+							 AT91_PIOB 14 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB14 periph A */
+							 AT91_PIOB 15 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB15 periph A */
+							 AT91_PIOB 16 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB16 periph A */
+							 AT91_PIOB 17 AT91_PERIPH_A AT91_PINCTRL_NONE>;	/* PB17 periph A */
+					};
+				};
+			};
+
+			macb0: ethernet@f802c000 {
+				compatible = "cdns,at32ap7000-macb", "cdns,macb";
+				reg = <0xf802c000 0x100>;
+				interrupts = <24 IRQ_TYPE_LEVEL_HIGH 3>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_macb0_rmii>;
+				status = "disabled";
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/at91sam9x5_macb1.dtsi b/arch/arm/boot/dts/at91sam9x5_macb1.dtsi
new file mode 100644
index 000000000000..77425a627a94
--- /dev/null
+++ b/arch/arm/boot/dts/at91sam9x5_macb1.dtsi
@@ -0,0 +1,44 @@
+/*
+ * at91sam9x5_macb1.dtsi - Device Tree Include file for AT91SAM9x5 SoC with 2
+ * Ethernet interfaces.
+ *
+ * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
+ *
+ * Licensed under GPLv2.
+ */
+
+#include <dt-bindings/pinctrl/at91.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	ahb {
+		apb {
+			pinctrl@fffff400 {
+				macb1 {
+					pinctrl_macb1_rmii: macb1_rmii-0 {
+						atmel,pins =
+							<AT91_PIOC 16 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PC16 periph B */
+							 AT91_PIOC 18 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PC18 periph B */
+							 AT91_PIOC 19 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PC19 periph B */
+							 AT91_PIOC 20 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PC20 periph B */
+							 AT91_PIOC 21 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PC21 periph B */
+							 AT91_PIOC 27 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PC27 periph B */
+							 AT91_PIOC 28 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PC28 periph B */
+							 AT91_PIOC 29 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PC29 periph B */
+							 AT91_PIOC 30 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PC30 periph B */
+							 AT91_PIOC 31 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PC31 periph B */
+					};
+				};
+			};
+
+			macb1: ethernet@f8030000 {
+				compatible = "cdns,at32ap7000-macb", "cdns,macb";
+				reg = <0xf8030000 0x100>;
+				interrupts = <27 IRQ_TYPE_LEVEL_HIGH 3>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_macb1_rmii>;
+				status = "disabled";
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/at91sam9x5_usart3.dtsi b/arch/arm/boot/dts/at91sam9x5_usart3.dtsi
new file mode 100644
index 000000000000..2347e9563cef
--- /dev/null
+++ b/arch/arm/boot/dts/at91sam9x5_usart3.dtsi
@@ -0,0 +1,51 @@
+/*
+ * at91sam9x5_usart3.dtsi - Device Tree Include file for AT91SAM9x5 SoC with
+ * 4 USART.
+ *
+ * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
+ *
+ * Licensed under GPLv2.
+ */
+
+#include <dt-bindings/pinctrl/at91.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	ahb {
+		apb {
+			pinctrl@fffff400 {
+				usart3 {
+					pinctrl_usart3: usart3-0 {
+						atmel,pins =
+							<AT91_PIOC 22 AT91_PERIPH_B AT91_PINCTRL_PULL_UP	/* PC22 periph B with pullup */
+							 AT91_PIOC 23 AT91_PERIPH_B AT91_PINCTRL_NONE>;		/* PC23 periph B */
+					};
+
+					pinctrl_usart3_rts: usart3_rts-0 {
+						atmel,pins =
+							<AT91_PIOC 24 AT91_PERIPH_B AT91_PINCTRL_NONE>;		/* PC24 periph B */
+					};
+
+					pinctrl_usart3_cts: usart3_cts-0 {
+						atmel,pins =
+							<AT91_PIOC 25 AT91_PERIPH_B AT91_PINCTRL_NONE>;		/* PC25 periph B */
+					};
+
+					pinctrl_usart3_sck: usart3_sck-0 {
+						atmel,pins =
+							<AT91_PIOC 26 AT91_PERIPH_B AT91_PINCTRL_NONE>;		/* PC26 periph B */
+					};
+				};
+			};
+
+			usart3: serial@f8028000 {
+				compatible = "atmel,at91sam9260-usart";
+				reg = <0xf8028000 0x200>;
+				interrupts = <8 IRQ_TYPE_LEVEL_HIGH 5>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_usart3>;
+				status = "disabled";
+			};
+		};
+	};
+};
-- 
cgit 


From d7d1d45cc46d79ab9227288e225aa51078855729 Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <b.brezillon@overkiz.com>
Date: Wed, 7 Aug 2013 10:49:01 +0200
Subject: ARM: at91/dt: split sama5d3 peripheral definitions

This patch splits the sama5d3 SoCs definition:
- a common base for all sama5d3 SoCs (sama5d3.dtsi)
- several optional peripheral definitions which will be included by sama5d3
  specific SoCs (sama5d3_'periph name'.dtsi)
- sama5d3 specific SoC definitions (sama5d3x.dtsi)

This provides a better representation of the real hardware (drop unneed
dt nodes) and avoids peripheral id conflict (which is not the case for
current sama5d3 SoCs, but could be if other SoCs of this family are
released).

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
[nicolas.ferre@atmel.com: add more "sama5d3?" compatibility strings]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
 arch/arm/boot/dts/sama5d3.dtsi      | 203 ------------------------------------
 arch/arm/boot/dts/sama5d31.dtsi     |  16 +++
 arch/arm/boot/dts/sama5d31ek.dts    |   3 +-
 arch/arm/boot/dts/sama5d33.dtsi     |  14 +++
 arch/arm/boot/dts/sama5d33ek.dts    |   3 +-
 arch/arm/boot/dts/sama5d34.dtsi     |  16 +++
 arch/arm/boot/dts/sama5d34ek.dts    |   3 +-
 arch/arm/boot/dts/sama5d35.dtsi     |  18 ++++
 arch/arm/boot/dts/sama5d35ek.dts    |   3 +-
 arch/arm/boot/dts/sama5d3_can.dtsi  |  54 ++++++++++
 arch/arm/boot/dts/sama5d3_emac.dtsi |  44 ++++++++
 arch/arm/boot/dts/sama5d3_gmac.dtsi |  77 ++++++++++++++
 arch/arm/boot/dts/sama5d3_lcd.dtsi  |  55 ++++++++++
 arch/arm/boot/dts/sama5d3_mci2.dtsi |  47 +++++++++
 arch/arm/boot/dts/sama5d3_tcb1.dtsi |  27 +++++
 arch/arm/boot/dts/sama5d3_uart.dtsi |  53 ++++++++++
 arch/arm/boot/dts/sama5d3xcm.dtsi   |   1 -
 17 files changed, 429 insertions(+), 208 deletions(-)
 create mode 100644 arch/arm/boot/dts/sama5d31.dtsi
 create mode 100644 arch/arm/boot/dts/sama5d33.dtsi
 create mode 100644 arch/arm/boot/dts/sama5d34.dtsi
 create mode 100644 arch/arm/boot/dts/sama5d35.dtsi
 create mode 100644 arch/arm/boot/dts/sama5d3_can.dtsi
 create mode 100644 arch/arm/boot/dts/sama5d3_emac.dtsi
 create mode 100644 arch/arm/boot/dts/sama5d3_gmac.dtsi
 create mode 100644 arch/arm/boot/dts/sama5d3_lcd.dtsi
 create mode 100644 arch/arm/boot/dts/sama5d3_mci2.dtsi
 create mode 100644 arch/arm/boot/dts/sama5d3_tcb1.dtsi
 create mode 100644 arch/arm/boot/dts/sama5d3_uart.dtsi

diff --git a/arch/arm/boot/dts/sama5d3.dtsi b/arch/arm/boot/dts/sama5d3.dtsi
index b7f49615120d..5cdaba4cea86 100644
--- a/arch/arm/boot/dts/sama5d3.dtsi
+++ b/arch/arm/boot/dts/sama5d3.dtsi
@@ -31,7 +31,6 @@
 		gpio3 = &pioD;
 		gpio4 = &pioE;
 		tcb0 = &tcb0;
-		tcb1 = &tcb1;
 		i2c0 = &i2c0;
 		i2c1 = &i2c1;
 		i2c2 = &i2c2;
@@ -105,15 +104,6 @@
 				status = "disabled";
 			};
 
-			can0: can@f000c000 {
-				compatible = "atmel,at91sam9x5-can";
-				reg = <0xf000c000 0x300>;
-				interrupts = <40 IRQ_TYPE_LEVEL_HIGH 3>;
-				pinctrl-names = "default";
-				pinctrl-0 = <&pinctrl_can0_rx_tx>;
-				status = "disabled";
-			};
-
 			tcb0: timer@f0010000 {
 				compatible = "atmel,at91sam9x5-tcb";
 				reg = <0xf0010000 0x100>;
@@ -166,15 +156,6 @@
 				status = "disabled";
 			};
 
-			macb0: ethernet@f0028000 {
-				compatible = "cdns,pc302-gem", "cdns,gem";
-				reg = <0xf0028000 0x100>;
-				interrupts = <34 IRQ_TYPE_LEVEL_HIGH 3>;
-				pinctrl-names = "default";
-				pinctrl-0 = <&pinctrl_macb0_data_rgmii &pinctrl_macb0_signal_rgmii>;
-				status = "disabled";
-			};
-
 			isi: isi@f0034000 {
 				compatible = "atmel,at91sam9g45-isi";
 				reg = <0xf0034000 0x4000>;
@@ -195,19 +176,6 @@
 				#size-cells = <0>;
 			};
 
-			mmc2: mmc@f8004000 {
-				compatible = "atmel,hsmci";
-				reg = <0xf8004000 0x600>;
-				interrupts = <23 IRQ_TYPE_LEVEL_HIGH 0>;
-				dmas = <&dma1 2 AT91_DMA_CFG_PER_ID(1)>;
-				dma-names = "rxtx";
-				pinctrl-names = "default";
-				pinctrl-0 = <&pinctrl_mmc2_clk_cmd_dat0 &pinctrl_mmc2_dat1_3>;
-				status = "disabled";
-				#address-cells = <1>;
-				#size-cells = <0>;
-			};
-
 			spi1: spi@f8008000 {
 				#address-cells = <1>;
 				#size-cells = <0>;
@@ -231,20 +199,6 @@
 				status = "disabled";
 			};
 
-			can1: can@f8010000 {
-				compatible = "atmel,at91sam9x5-can";
-				reg = <0xf8010000 0x300>;
-				interrupts = <41 IRQ_TYPE_LEVEL_HIGH 3>;
-				pinctrl-names = "default";
-				pinctrl-0 = <&pinctrl_can1_rx_tx>;
-			};
-
-			tcb1: timer@f8014000 {
-				compatible = "atmel,at91sam9x5-tcb";
-				reg = <0xf8014000 0x100>;
-				interrupts = <27 IRQ_TYPE_LEVEL_HIGH 0>;
-			};
-
 			adc0: adc@f8018000 {
 				compatible = "atmel,at91sam9260-adc";
 				reg = <0xf8018000 0x100>;
@@ -341,15 +295,6 @@
 				status = "disabled";
 			};
 
-			macb1: ethernet@f802c000 {
-				compatible = "cdns,at32ap7000-macb", "cdns,macb";
-				reg = <0xf802c000 0x100>;
-				interrupts = <35 IRQ_TYPE_LEVEL_HIGH 3>;
-				pinctrl-names = "default";
-				pinctrl-0 = <&pinctrl_macb1_rmii>;
-				status = "disabled";
-			};
-
 			sha@f8034000 {
 				compatible = "atmel,sam9g46-sha";
 				reg = <0xf8034000 0x100>;
@@ -474,22 +419,6 @@
 					};
 				};
 
-				can0 {
-					pinctrl_can0_rx_tx: can0_rx_tx {
-						atmel,pins =
-							<AT91_PIOD 14 AT91_PERIPH_C AT91_PINCTRL_NONE	/* PD14 periph C RX, conflicts with SCK0, SPI0_NPCS1 */
-							 AT91_PIOD 15 AT91_PERIPH_C AT91_PINCTRL_NONE>;	/* PD15 periph C TX, conflicts with CTS0, SPI0_NPCS2 */
-					};
-				};
-
-				can1 {
-					pinctrl_can1_rx_tx: can1_rx_tx {
-						atmel,pins =
-							<AT91_PIOB 14 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PB14 periph B RX, conflicts with GCRS */
-							 AT91_PIOB 15 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PB15 periph B TX, conflicts with GCOL */
-					};
-				};
-
 				dbgu {
 					pinctrl_dbgu: dbgu-0 {
 						atmel,pins =
@@ -537,107 +466,6 @@
 					};
 				};
 
-				lcd {
-					pinctrl_lcd: lcd-0 {
-						atmel,pins =
-							<AT91_PIOA 24 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA24 periph A LCDPWM */
-							 AT91_PIOA 26 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA26 periph A LCDVSYNC */
-							 AT91_PIOA 27 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA27 periph A LCDHSYNC */
-							 AT91_PIOA 25 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA25 periph A LCDDISP */
-							 AT91_PIOA 29 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA29 periph A LCDDEN */
-							 AT91_PIOA 28 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA28 periph A LCDPCK */
-							 AT91_PIOA 0 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA0 periph A LCDD0 pin */
-							 AT91_PIOA 1 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA1 periph A LCDD1 pin */
-							 AT91_PIOA 2 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA2 periph A LCDD2 pin */
-							 AT91_PIOA 3 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA3 periph A LCDD3 pin */
-							 AT91_PIOA 4 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA4 periph A LCDD4 pin */
-							 AT91_PIOA 5 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA5 periph A LCDD5 pin */
-							 AT91_PIOA 6 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA6 periph A LCDD6 pin */
-							 AT91_PIOA 7 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA7 periph A LCDD7 pin */
-							 AT91_PIOA 8 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA8 periph A LCDD8 pin */
-							 AT91_PIOA 9 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA9 periph A LCDD9 pin */
-							 AT91_PIOA 10 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA10 periph A LCDD10 pin */
-							 AT91_PIOA 11 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA11 periph A LCDD11 pin */
-							 AT91_PIOA 12 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA12 periph A LCDD12 pin */
-							 AT91_PIOA 13 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA13 periph A LCDD13 pin */
-							 AT91_PIOA 14 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA14 periph A LCDD14 pin */
-							 AT91_PIOA 15 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA15 periph A LCDD15 pin */
-							 AT91_PIOC 14 AT91_PERIPH_C AT91_PINCTRL_NONE	/* PC14 periph C LCDD16 pin */
-							 AT91_PIOC 13 AT91_PERIPH_C AT91_PINCTRL_NONE	/* PC13 periph C LCDD17 pin */
-							 AT91_PIOC 12 AT91_PERIPH_C AT91_PINCTRL_NONE	/* PC12 periph C LCDD18 pin */
-							 AT91_PIOC 11 AT91_PERIPH_C AT91_PINCTRL_NONE	/* PC11 periph C LCDD19 pin */
-							 AT91_PIOC 10 AT91_PERIPH_C AT91_PINCTRL_NONE	/* PC10 periph C LCDD20 pin */
-							 AT91_PIOC 15 AT91_PERIPH_C AT91_PINCTRL_NONE	/* PC15 periph C LCDD21 pin */
-							 AT91_PIOE 27 AT91_PERIPH_C AT91_PINCTRL_NONE	/* PE27 periph C LCDD22 pin */
-							 AT91_PIOE 28 AT91_PERIPH_C AT91_PINCTRL_NONE>;	/* PE28 periph C LCDD23 pin */
-					};
-				};
-
-				macb0 {
-					pinctrl_macb0_data_rgmii: macb0_data_rgmii {
-						atmel,pins =
-							<AT91_PIOB 0 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB0 periph A GTX0, conflicts with PWMH0 */
-							 AT91_PIOB 1 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB1 periph A GTX1, conflicts with PWML0 */
-							 AT91_PIOB 2 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB2 periph A GTX2, conflicts with TK1 */
-							 AT91_PIOB 3 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB3 periph A GTX3, conflicts with TF1 */
-							 AT91_PIOB 4 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB4 periph A GRX0, conflicts with PWMH1 */
-							 AT91_PIOB 5 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB5 periph A GRX1, conflicts with PWML1 */
-							 AT91_PIOB 6 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB6 periph A GRX2, conflicts with TD1 */
-							 AT91_PIOB 7 AT91_PERIPH_A AT91_PINCTRL_NONE>;	/* PB7 periph A GRX3, conflicts with RK1 */
-					};
-					pinctrl_macb0_data_gmii: macb0_data_gmii {
-						atmel,pins =
-							<AT91_PIOB 19 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PB19 periph B GTX4, conflicts with MCI1_CDA */
-							 AT91_PIOB 20 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PB20 periph B GTX5, conflicts with MCI1_DA0 */
-							 AT91_PIOB 21 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PB21 periph B GTX6, conflicts with MCI1_DA1 */
-							 AT91_PIOB 22 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PB22 periph B GTX7, conflicts with MCI1_DA2 */
-							 AT91_PIOB 23 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PB23 periph B GRX4, conflicts with MCI1_DA3 */
-							 AT91_PIOB 24 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PB24 periph B GRX5, conflicts with MCI1_CK */
-							 AT91_PIOB 25 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PB25 periph B GRX6, conflicts with SCK1 */
-							 AT91_PIOB 26 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PB26 periph B GRX7, conflicts with CTS1 */
-					};
-					pinctrl_macb0_signal_rgmii: macb0_signal_rgmii {
-						atmel,pins =
-							<AT91_PIOB 8 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB8 periph A GTXCK, conflicts with PWMH2 */
-							 AT91_PIOB 9 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB9 periph A GTXEN, conflicts with PWML2 */
-							 AT91_PIOB 11 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB11 periph A GRXCK, conflicts with RD1 */
-							 AT91_PIOB 13 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB13 periph A GRXER, conflicts with PWML3 */
-							 AT91_PIOB 16 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB16 periph A GMDC */
-							 AT91_PIOB 17 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB17 periph A GMDIO */
-							 AT91_PIOB 18 AT91_PERIPH_A AT91_PINCTRL_NONE>;	/* PB18 periph A G125CK */
-					};
-					pinctrl_macb0_signal_gmii: macb0_signal_gmii {
-						atmel,pins =
-							<AT91_PIOB 9 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB9 periph A GTXEN, conflicts with PWML2 */
-							 AT91_PIOB 10 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB10 periph A GTXER, conflicts with RF1 */
-							 AT91_PIOB 11 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB11 periph A GRXCK, conflicts with RD1 */
-							 AT91_PIOB 12 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB12 periph A GRXDV, conflicts with PWMH3 */
-							 AT91_PIOB 13 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB13 periph A GRXER, conflicts with PWML3 */
-							 AT91_PIOB 14 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB14 periph A GCRS, conflicts with CANRX1 */
-							 AT91_PIOB 15 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB15 periph A GCOL, conflicts with CANTX1 */
-							 AT91_PIOB 16 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB16 periph A GMDC */
-							 AT91_PIOB 17 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB17 periph A GMDIO */
-							 AT91_PIOB 27 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PB27 periph B G125CKO */
-					};
-
-				};
-
-				macb1 {
-					pinctrl_macb1_rmii: macb1_rmii-0 {
-						atmel,pins =
-							<AT91_PIOC 0 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC0 periph A ETX0, conflicts with TIOA3 */
-							 AT91_PIOC 1 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC1 periph A ETX1, conflicts with TIOB3 */
-							 AT91_PIOC 2 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC2 periph A ERX0, conflicts with TCLK3 */
-							 AT91_PIOC 3 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC3 periph A ERX1, conflicts with TIOA4 */
-							 AT91_PIOC 4 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC4 periph A ETXEN, conflicts with TIOB4 */
-							 AT91_PIOC 5 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC5 periph A ECRSDV,conflicts with TCLK4 */
-							 AT91_PIOC 6 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC6 periph A ERXER, conflicts with TIOA5 */
-							 AT91_PIOC 7 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC7 periph A EREFCK, conflicts with TIOB5 */
-							 AT91_PIOC 8 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC8 periph A EMDC, conflicts with TCLK5 */
-							 AT91_PIOC 9 AT91_PERIPH_A AT91_PINCTRL_NONE>;	/* PC9 periph A EMDIO  */
-					};
-				};
-
 				mmc0 {
 					pinctrl_mmc0_clk_cmd_dat0: mmc0_clk_cmd_dat0 {
 						atmel,pins =
@@ -675,21 +503,6 @@
 					};
 				};
 
-				mmc2 {
-					pinctrl_mmc2_clk_cmd_dat0: mmc2_clk_cmd_dat0 {
-						atmel,pins =
-							<AT91_PIOC 15 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC15 periph A MCI2_CK, conflicts with PCK2 */
-							 AT91_PIOC 10 AT91_PERIPH_A AT91_PINCTRL_PULL_UP	/* PC10 periph A MCI2_CDA with pullup */
-							 AT91_PIOC 11 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;	/* PC11 periph A MCI2_DA0 with pullup */
-					};
-					pinctrl_mmc2_dat1_3: mmc2_dat1_3 {
-						atmel,pins =
-							<AT91_PIOC 12 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC12 periph A MCI2_DA1 with pullup, conflicts with TIOA1 */
-							 AT91_PIOC 13 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC13 periph A MCI2_DA2 with pullup, conflicts with TIOB1 */
-							 AT91_PIOC 14 AT91_PERIPH_A AT91_PINCTRL_NONE>;	/* PC14 periph A MCI2_DA3 with pullup, conflicts with TCLK1 */
-					};
-				};
-
 				nand0 {
 					pinctrl_nand0_ale_cle: nand0_ale_cle-0 {
 						atmel,pins =
@@ -748,22 +561,6 @@
 					};
 				};
 
-				uart0 {
-					pinctrl_uart0: uart0-0 {
-						atmel,pins =
-							<AT91_PIOC 29 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC29 periph A, conflicts with PWMFI2, ISI_D8 */
-							 AT91_PIOC 30 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;	/* PC30 periph A with pullup, conflicts with ISI_PCK */
-					};
-				};
-
-				uart1 {
-					pinctrl_uart1: uart1-0 {
-						atmel,pins =
-							<AT91_PIOA 30 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PA30 periph B, conflicts with TWD0, ISI_VSYNC */
-							 AT91_PIOA 31 AT91_PERIPH_B AT91_PINCTRL_PULL_UP>;	/* PA31 periph B with pullup, conflicts with TWCK0, ISI_HSYNC */
-					};
-				};
-
 				usart0 {
 					pinctrl_usart0: usart0-0 {
 						atmel,pins =
diff --git a/arch/arm/boot/dts/sama5d31.dtsi b/arch/arm/boot/dts/sama5d31.dtsi
new file mode 100644
index 000000000000..7997dc9863ed
--- /dev/null
+++ b/arch/arm/boot/dts/sama5d31.dtsi
@@ -0,0 +1,16 @@
+/*
+ * sama5d31.dtsi - Device Tree Include file for SAMA5D31 SoC
+ *
+ *  Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
+ *
+ * Licensed under GPLv2 or later.
+ */
+#include "sama5d3.dtsi"
+#include "sama5d3_lcd.dtsi"
+#include "sama5d3_emac.dtsi"
+#include "sama5d3_mci2.dtsi"
+#include "sama5d3_uart.dtsi"
+
+/ {
+	compatible = "atmel,samad31", "atmel,sama5d3", "atmel,sama5";
+};
diff --git a/arch/arm/boot/dts/sama5d31ek.dts b/arch/arm/boot/dts/sama5d31ek.dts
index 027bac7510b6..04eec0dfcf7d 100644
--- a/arch/arm/boot/dts/sama5d31ek.dts
+++ b/arch/arm/boot/dts/sama5d31ek.dts
@@ -7,12 +7,13 @@
  * Licensed under GPLv2 or later.
  */
 /dts-v1/;
+#include "sama5d31.dtsi"
 #include "sama5d3xmb.dtsi"
 #include "sama5d3xdm.dtsi"
 
 / {
 	model = "Atmel SAMA5D31-EK";
-	compatible = "atmel,sama5d31ek", "atmel,sama5d3xmb", "atmel,sama5d3xcm", "atmel,sama5d3", "atmel,sama5";
+	compatible = "atmel,sama5d31ek", "atmel,sama5d3xmb", "atmel,sama5d3xcm", "atmel,sama5d31", "atmel,sama5d3", "atmel,sama5";
 
 	ahb {
 		apb {
diff --git a/arch/arm/boot/dts/sama5d33.dtsi b/arch/arm/boot/dts/sama5d33.dtsi
new file mode 100644
index 000000000000..39f832253caf
--- /dev/null
+++ b/arch/arm/boot/dts/sama5d33.dtsi
@@ -0,0 +1,14 @@
+/*
+ * sama5d33.dtsi - Device Tree Include file for SAMA5D33 SoC
+ *
+ *  Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
+ *
+ * Licensed under GPLv2 or later.
+ */
+#include "sama5d3.dtsi"
+#include "sama5d3_lcd.dtsi"
+#include "sama5d3_gmac.dtsi"
+
+/ {
+	compatible = "atmel,samad33", "atmel,sama5d3", "atmel,sama5";
+};
diff --git a/arch/arm/boot/dts/sama5d33ek.dts b/arch/arm/boot/dts/sama5d33ek.dts
index 99bd0c8e0471..cbd6a3ff1545 100644
--- a/arch/arm/boot/dts/sama5d33ek.dts
+++ b/arch/arm/boot/dts/sama5d33ek.dts
@@ -7,12 +7,13 @@
  * Licensed under GPLv2 or later.
  */
 /dts-v1/;
+#include "sama5d33.dtsi"
 #include "sama5d3xmb.dtsi"
 #include "sama5d3xdm.dtsi"
 
 / {
 	model = "Atmel SAMA5D33-EK";
-	compatible = "atmel,sama5d33ek", "atmel,sama5d3xmb", "atmel,sama5d3xcm", "atmel,sama5d3", "atmel,sama5";
+	compatible = "atmel,sama5d33ek", "atmel,sama5d3xmb", "atmel,sama5d3xcm", "atmel,sama5d33", "atmel,sama5d3", "atmel,sama5";
 
 	ahb {
 		apb {
diff --git a/arch/arm/boot/dts/sama5d34.dtsi b/arch/arm/boot/dts/sama5d34.dtsi
new file mode 100644
index 000000000000..89cda2c0da39
--- /dev/null
+++ b/arch/arm/boot/dts/sama5d34.dtsi
@@ -0,0 +1,16 @@
+/*
+ * sama5d34.dtsi - Device Tree Include file for SAMA5D34 SoC
+ *
+ *  Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
+ *
+ * Licensed under GPLv2 or later.
+ */
+#include "sama5d3.dtsi"
+#include "sama5d3_lcd.dtsi"
+#include "sama5d3_gmac.dtsi"
+#include "sama5d3_can.dtsi"
+#include "sama5d3_mci2.dtsi"
+
+/ {
+	compatible = "atmel,samad34", "atmel,sama5d3", "atmel,sama5";
+};
diff --git a/arch/arm/boot/dts/sama5d34ek.dts b/arch/arm/boot/dts/sama5d34ek.dts
index fb8ee11cf282..878aa164275a 100644
--- a/arch/arm/boot/dts/sama5d34ek.dts
+++ b/arch/arm/boot/dts/sama5d34ek.dts
@@ -7,12 +7,13 @@
  * Licensed under GPLv2 or later.
  */
 /dts-v1/;
+#include "sama5d34.dtsi"
 #include "sama5d3xmb.dtsi"
 #include "sama5d3xdm.dtsi"
 
 / {
 	model = "Atmel SAMA5D34-EK";
-	compatible = "atmel,sama5d34ek", "atmel,sama5d3xmb", "atmel,sama5d3xcm", "atmel,sama5d3", "atmel,sama5";
+	compatible = "atmel,sama5d34ek", "atmel,sama5d3xmb", "atmel,sama5d3xcm", "atmel,sama5d34", "atmel,sama5d3", "atmel,sama5";
 
 	ahb {
 		apb {
diff --git a/arch/arm/boot/dts/sama5d35.dtsi b/arch/arm/boot/dts/sama5d35.dtsi
new file mode 100644
index 000000000000..d20cd71b5f0e
--- /dev/null
+++ b/arch/arm/boot/dts/sama5d35.dtsi
@@ -0,0 +1,18 @@
+/*
+ * sama5d35.dtsi - Device Tree Include file for SAMA5D35 SoC
+ *
+ *  Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
+ *
+ * Licensed under GPLv2 or later.
+ */
+#include "sama5d3.dtsi"
+#include "sama5d3_gmac.dtsi"
+#include "sama5d3_emac.dtsi"
+#include "sama5d3_can.dtsi"
+#include "sama5d3_mci2.dtsi"
+#include "sama5d3_uart.dtsi"
+#include "sama5d3_tcb1.dtsi"
+
+/ {
+	compatible = "atmel,samad35", "atmel,sama5d3", "atmel,sama5";
+};
diff --git a/arch/arm/boot/dts/sama5d35ek.dts b/arch/arm/boot/dts/sama5d35ek.dts
index 509a53d9cc7b..9089c7c6cea8 100644
--- a/arch/arm/boot/dts/sama5d35ek.dts
+++ b/arch/arm/boot/dts/sama5d35ek.dts
@@ -7,11 +7,12 @@
  * Licensed under GPLv2 or later.
  */
 /dts-v1/;
+#include "sama5d35.dtsi"
 #include "sama5d3xmb.dtsi"
 
 / {
 	model = "Atmel SAMA5D35-EK";
-	compatible = "atmel,sama5d35ek", "atmel,sama5d3xmb", "atmel,sama5d3xcm", "atmel,sama5d3", "atmel,sama5";
+	compatible = "atmel,sama5d35ek", "atmel,sama5d3xmb", "atmel,sama5d3xcm", "atmel,sama5d35", "atmel,sama5d3", "atmel,sama5";
 
 	ahb {
 		apb {
diff --git a/arch/arm/boot/dts/sama5d3_can.dtsi b/arch/arm/boot/dts/sama5d3_can.dtsi
new file mode 100644
index 000000000000..8ed3260cef66
--- /dev/null
+++ b/arch/arm/boot/dts/sama5d3_can.dtsi
@@ -0,0 +1,54 @@
+/*
+ * at91sama5d3_can.dtsi - Device Tree Include file for AT91SAM9x5 SoC with
+ * CAN support
+ *
+ * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
+ *
+ * Licensed under GPLv2.
+ */
+
+#include <dt-bindings/pinctrl/at91.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	ahb {
+		apb {
+			pinctrl@fffff200 {
+				can0 {
+					pinctrl_can0_rx_tx: can0_rx_tx {
+						atmel,pins =
+							<AT91_PIOD 14 AT91_PERIPH_C AT91_PINCTRL_NONE	/* PD14 periph C RX, conflicts with SCK0, SPI0_NPCS1 */
+							 AT91_PIOD 15 AT91_PERIPH_C AT91_PINCTRL_NONE>;	/* PD15 periph C TX, conflicts with CTS0, SPI0_NPCS2 */
+					};
+				};
+
+				can1 {
+					pinctrl_can1_rx_tx: can1_rx_tx {
+						atmel,pins =
+							<AT91_PIOB 14 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PB14 periph B RX, conflicts with GCRS */
+							 AT91_PIOB 15 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PB15 periph B TX, conflicts with GCOL */
+					};
+				};
+
+			};
+
+			can0: can@f000c000 {
+				compatible = "atmel,at91sam9x5-can";
+				reg = <0xf000c000 0x300>;
+				interrupts = <40 IRQ_TYPE_LEVEL_HIGH 3>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_can0_rx_tx>;
+				status = "disabled";
+			};
+
+			can1: can@f8010000 {
+				compatible = "atmel,at91sam9x5-can";
+				reg = <0xf8010000 0x300>;
+				interrupts = <41 IRQ_TYPE_LEVEL_HIGH 3>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_can1_rx_tx>;
+				status = "disabled";
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/sama5d3_emac.dtsi b/arch/arm/boot/dts/sama5d3_emac.dtsi
new file mode 100644
index 000000000000..4d4f351f1f9f
--- /dev/null
+++ b/arch/arm/boot/dts/sama5d3_emac.dtsi
@@ -0,0 +1,44 @@
+/*
+ * at91sama5d3_emac.dtsi - Device Tree Include file for AT91SAM9x5 SoC with
+ * Ethernet.
+ *
+ * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
+ *
+ * Licensed under GPLv2.
+ */
+
+#include <dt-bindings/pinctrl/at91.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	ahb {
+		apb {
+			pinctrl@fffff200 {
+				macb1 {
+					pinctrl_macb1_rmii: macb1_rmii-0 {
+						atmel,pins =
+							<AT91_PIOC 0 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC0 periph A ETX0, conflicts with TIOA3 */
+							 AT91_PIOC 1 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC1 periph A ETX1, conflicts with TIOB3 */
+							 AT91_PIOC 2 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC2 periph A ERX0, conflicts with TCLK3 */
+							 AT91_PIOC 3 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC3 periph A ERX1, conflicts with TIOA4 */
+							 AT91_PIOC 4 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC4 periph A ETXEN, conflicts with TIOB4 */
+							 AT91_PIOC 5 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC5 periph A ECRSDV,conflicts with TCLK4 */
+							 AT91_PIOC 6 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC6 periph A ERXER, conflicts with TIOA5 */
+							 AT91_PIOC 7 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC7 periph A EREFCK, conflicts with TIOB5 */
+							 AT91_PIOC 8 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC8 periph A EMDC, conflicts with TCLK5 */
+							 AT91_PIOC 9 AT91_PERIPH_A AT91_PINCTRL_NONE>;	/* PC9 periph A EMDIO  */
+					};
+				};
+			};
+
+			macb1: ethernet@f802c000 {
+				compatible = "cdns,at32ap7000-macb", "cdns,macb";
+				reg = <0xf802c000 0x100>;
+				interrupts = <35 IRQ_TYPE_LEVEL_HIGH 3>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_macb1_rmii>;
+				status = "disabled";
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/sama5d3_gmac.dtsi b/arch/arm/boot/dts/sama5d3_gmac.dtsi
new file mode 100644
index 000000000000..0ba8be30ccd8
--- /dev/null
+++ b/arch/arm/boot/dts/sama5d3_gmac.dtsi
@@ -0,0 +1,77 @@
+/*
+ * at91sama5d3_gmac.dtsi - Device Tree Include file for AT91SAM9x5 SoC with
+ * Gigabit Ethernet.
+ *
+ * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
+ *
+ * Licensed under GPLv2.
+ */
+
+#include <dt-bindings/pinctrl/at91.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	ahb {
+		apb {
+			pinctrl@fffff200 {
+				macb0 {
+					pinctrl_macb0_data_rgmii: macb0_data_rgmii {
+						atmel,pins =
+							<AT91_PIOB 0 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB0 periph A GTX0, conflicts with PWMH0 */
+							 AT91_PIOB 1 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB1 periph A GTX1, conflicts with PWML0 */
+							 AT91_PIOB 2 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB2 periph A GTX2, conflicts with TK1 */
+							 AT91_PIOB 3 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB3 periph A GTX3, conflicts with TF1 */
+							 AT91_PIOB 4 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB4 periph A GRX0, conflicts with PWMH1 */
+							 AT91_PIOB 5 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB5 periph A GRX1, conflicts with PWML1 */
+							 AT91_PIOB 6 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB6 periph A GRX2, conflicts with TD1 */
+							 AT91_PIOB 7 AT91_PERIPH_A AT91_PINCTRL_NONE>;	/* PB7 periph A GRX3, conflicts with RK1 */
+					};
+					pinctrl_macb0_data_gmii: macb0_data_gmii {
+						atmel,pins =
+							<AT91_PIOB 19 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PB19 periph B GTX4, conflicts with MCI1_CDA */
+							 AT91_PIOB 20 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PB20 periph B GTX5, conflicts with MCI1_DA0 */
+							 AT91_PIOB 21 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PB21 periph B GTX6, conflicts with MCI1_DA1 */
+							 AT91_PIOB 22 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PB22 periph B GTX7, conflicts with MCI1_DA2 */
+							 AT91_PIOB 23 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PB23 periph B GRX4, conflicts with MCI1_DA3 */
+							 AT91_PIOB 24 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PB24 periph B GRX5, conflicts with MCI1_CK */
+							 AT91_PIOB 25 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PB25 periph B GRX6, conflicts with SCK1 */
+							 AT91_PIOB 26 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PB26 periph B GRX7, conflicts with CTS1 */
+					};
+					pinctrl_macb0_signal_rgmii: macb0_signal_rgmii {
+						atmel,pins =
+							<AT91_PIOB 8 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB8 periph A GTXCK, conflicts with PWMH2 */
+							 AT91_PIOB 9 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB9 periph A GTXEN, conflicts with PWML2 */
+							 AT91_PIOB 11 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB11 periph A GRXCK, conflicts with RD1 */
+							 AT91_PIOB 13 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB13 periph A GRXER, conflicts with PWML3 */
+							 AT91_PIOB 16 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB16 periph A GMDC */
+							 AT91_PIOB 17 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB17 periph A GMDIO */
+							 AT91_PIOB 18 AT91_PERIPH_A AT91_PINCTRL_NONE>;	/* PB18 periph A G125CK */
+					};
+					pinctrl_macb0_signal_gmii: macb0_signal_gmii {
+						atmel,pins =
+							<AT91_PIOB 9 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB9 periph A GTXEN, conflicts with PWML2 */
+							 AT91_PIOB 10 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB10 periph A GTXER, conflicts with RF1 */
+							 AT91_PIOB 11 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB11 periph A GRXCK, conflicts with RD1 */
+							 AT91_PIOB 12 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB12 periph A GRXDV, conflicts with PWMH3 */
+							 AT91_PIOB 13 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB13 periph A GRXER, conflicts with PWML3 */
+							 AT91_PIOB 14 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB14 periph A GCRS, conflicts with CANRX1 */
+							 AT91_PIOB 15 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB15 periph A GCOL, conflicts with CANTX1 */
+							 AT91_PIOB 16 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB16 periph A GMDC */
+							 AT91_PIOB 17 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PB17 periph A GMDIO */
+							 AT91_PIOB 27 AT91_PERIPH_B AT91_PINCTRL_NONE>;	/* PB27 periph B G125CKO */
+					};
+
+				};
+			};
+
+			macb0: ethernet@f0028000 {
+				compatible = "cdns,pc302-gem", "cdns,gem";
+				reg = <0xf0028000 0x100>;
+				interrupts = <34 IRQ_TYPE_LEVEL_HIGH 3>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_macb0_data_rgmii &pinctrl_macb0_signal_rgmii>;
+				status = "disabled";
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/sama5d3_lcd.dtsi b/arch/arm/boot/dts/sama5d3_lcd.dtsi
new file mode 100644
index 000000000000..01f52a79f8ba
--- /dev/null
+++ b/arch/arm/boot/dts/sama5d3_lcd.dtsi
@@ -0,0 +1,55 @@
+/*
+ * at91sama5d3_lcd.dtsi - Device Tree Include file for AT91SAM9x5 SoC with
+ * LCD support
+ *
+ * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
+ *
+ * Licensed under GPLv2.
+ */
+
+#include <dt-bindings/pinctrl/at91.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	ahb {
+		apb {
+			pinctrl@fffff200 {
+				lcd {
+					pinctrl_lcd: lcd-0 {
+						atmel,pins =
+							<AT91_PIOA 24 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA24 periph A LCDPWM */
+							 AT91_PIOA 26 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA26 periph A LCDVSYNC */
+							 AT91_PIOA 27 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA27 periph A LCDHSYNC */
+							 AT91_PIOA 25 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA25 periph A LCDDISP */
+							 AT91_PIOA 29 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA29 periph A LCDDEN */
+							 AT91_PIOA 28 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA28 periph A LCDPCK */
+							 AT91_PIOA 0 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA0 periph A LCDD0 pin */
+							 AT91_PIOA 1 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA1 periph A LCDD1 pin */
+							 AT91_PIOA 2 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA2 periph A LCDD2 pin */
+							 AT91_PIOA 3 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA3 periph A LCDD3 pin */
+							 AT91_PIOA 4 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA4 periph A LCDD4 pin */
+							 AT91_PIOA 5 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA5 periph A LCDD5 pin */
+							 AT91_PIOA 6 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA6 periph A LCDD6 pin */
+							 AT91_PIOA 7 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA7 periph A LCDD7 pin */
+							 AT91_PIOA 8 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA8 periph A LCDD8 pin */
+							 AT91_PIOA 9 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA9 periph A LCDD9 pin */
+							 AT91_PIOA 10 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA10 periph A LCDD10 pin */
+							 AT91_PIOA 11 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA11 periph A LCDD11 pin */
+							 AT91_PIOA 12 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA12 periph A LCDD12 pin */
+							 AT91_PIOA 13 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA13 periph A LCDD13 pin */
+							 AT91_PIOA 14 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA14 periph A LCDD14 pin */
+							 AT91_PIOA 15 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PA15 periph A LCDD15 pin */
+							 AT91_PIOC 14 AT91_PERIPH_C AT91_PINCTRL_NONE	/* PC14 periph C LCDD16 pin */
+							 AT91_PIOC 13 AT91_PERIPH_C AT91_PINCTRL_NONE	/* PC13 periph C LCDD17 pin */
+							 AT91_PIOC 12 AT91_PERIPH_C AT91_PINCTRL_NONE	/* PC12 periph C LCDD18 pin */
+							 AT91_PIOC 11 AT91_PERIPH_C AT91_PINCTRL_NONE	/* PC11 periph C LCDD19 pin */
+							 AT91_PIOC 10 AT91_PERIPH_C AT91_PINCTRL_NONE	/* PC10 periph C LCDD20 pin */
+							 AT91_PIOC 15 AT91_PERIPH_C AT91_PINCTRL_NONE	/* PC15 periph C LCDD21 pin */
+							 AT91_PIOE 27 AT91_PERIPH_C AT91_PINCTRL_NONE	/* PE27 periph C LCDD22 pin */
+							 AT91_PIOE 28 AT91_PERIPH_C AT91_PINCTRL_NONE>;	/* PE28 periph C LCDD23 pin */
+					};
+				};
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/sama5d3_mci2.dtsi b/arch/arm/boot/dts/sama5d3_mci2.dtsi
new file mode 100644
index 000000000000..38e88e39e551
--- /dev/null
+++ b/arch/arm/boot/dts/sama5d3_mci2.dtsi
@@ -0,0 +1,47 @@
+/*
+ * at91sama5d3_mci2.dtsi - Device Tree Include file for AT91SAM9x5 SoC with
+ * 3 MMC ports
+ *
+ * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
+ *
+ * Licensed under GPLv2.
+ */
+
+#include <dt-bindings/pinctrl/at91.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	ahb {
+		apb {
+			pinctrl@fffff200 {
+				mmc2 {
+					pinctrl_mmc2_clk_cmd_dat0: mmc2_clk_cmd_dat0 {
+						atmel,pins =
+							<AT91_PIOC 15 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC15 periph A MCI2_CK, conflicts with PCK2 */
+							 AT91_PIOC 10 AT91_PERIPH_A AT91_PINCTRL_PULL_UP	/* PC10 periph A MCI2_CDA with pullup */
+							 AT91_PIOC 11 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;	/* PC11 periph A MCI2_DA0 with pullup */
+					};
+					pinctrl_mmc2_dat1_3: mmc2_dat1_3 {
+						atmel,pins =
+							<AT91_PIOC 12 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC12 periph A MCI2_DA1 with pullup, conflicts with TIOA1 */
+							 AT91_PIOC 13 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC13 periph A MCI2_DA2 with pullup, conflicts with TIOB1 */
+							 AT91_PIOC 14 AT91_PERIPH_A AT91_PINCTRL_NONE>;	/* PC14 periph A MCI2_DA3 with pullup, conflicts with TCLK1 */
+					};
+				};
+			};
+
+			mmc2: mmc@f8004000 {
+				compatible = "atmel,hsmci";
+				reg = <0xf8004000 0x600>;
+				interrupts = <23 IRQ_TYPE_LEVEL_HIGH 0>;
+				dmas = <&dma1 2 AT91_DMA_CFG_PER_ID(1)>;
+				dma-names = "rxtx";
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_mmc2_clk_cmd_dat0 &pinctrl_mmc2_dat1_3>;
+				status = "disabled";
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/sama5d3_tcb1.dtsi b/arch/arm/boot/dts/sama5d3_tcb1.dtsi
new file mode 100644
index 000000000000..5264bb4a6998
--- /dev/null
+++ b/arch/arm/boot/dts/sama5d3_tcb1.dtsi
@@ -0,0 +1,27 @@
+/*
+ * at91sama5d3_tcb1.dtsi - Device Tree Include file for AT91SAM9x5 SoC with
+ * 2 TC blocks.
+ *
+ * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
+ *
+ * Licensed under GPLv2.
+ */
+
+#include <dt-bindings/pinctrl/at91.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	aliases {
+		tcb1 = &tcb1;
+	};
+
+	ahb {
+		apb {
+			tcb1: timer@f8014000 {
+				compatible = "atmel,at91sam9x5-tcb";
+				reg = <0xf8014000 0x100>;
+				interrupts = <27 IRQ_TYPE_LEVEL_HIGH 0>;
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/sama5d3_uart.dtsi b/arch/arm/boot/dts/sama5d3_uart.dtsi
new file mode 100644
index 000000000000..98fcb2d57446
--- /dev/null
+++ b/arch/arm/boot/dts/sama5d3_uart.dtsi
@@ -0,0 +1,53 @@
+/*
+ * at91sama5d3_uart.dtsi - Device Tree Include file for AT91SAM9x5 SoC with
+ * UART support
+ *
+ * Copyright (C) 2013 Boris BREZILLON <b.brezillon@overkiz.com>
+ *
+ * Licensed under GPLv2.
+ */
+
+#include <dt-bindings/pinctrl/at91.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	ahb {
+		apb {
+			pinctrl@fffff200 {
+				uart0 {
+					pinctrl_uart0: uart0-0 {
+						atmel,pins =
+							<AT91_PIOC 29 AT91_PERIPH_A AT91_PINCTRL_NONE	/* PC29 periph A, conflicts with PWMFI2, ISI_D8 */
+							 AT91_PIOC 30 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>;	/* PC30 periph A with pullup, conflicts with ISI_PCK */
+					};
+				};
+
+				uart1 {
+					pinctrl_uart1: uart1-0 {
+						atmel,pins =
+							<AT91_PIOA 30 AT91_PERIPH_B AT91_PINCTRL_NONE	/* PA30 periph B, conflicts with TWD0, ISI_VSYNC */
+							 AT91_PIOA 31 AT91_PERIPH_B AT91_PINCTRL_PULL_UP>;	/* PA31 periph B with pullup, conflicts with TWCK0, ISI_HSYNC */
+					};
+				};
+			};
+
+			uart0: serial@f0024000 {
+				compatible = "atmel,at91sam9260-usart";
+				reg = <0xf0024000 0x200>;
+				interrupts = <16 IRQ_TYPE_LEVEL_HIGH 5>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_uart0>;
+				status = "disabled";
+			};
+
+			uart1: serial@f8028000 {
+				compatible = "atmel,at91sam9260-usart";
+				reg = <0xf8028000 0x200>;
+				interrupts = <17 IRQ_TYPE_LEVEL_HIGH 5>;
+				pinctrl-names = "default";
+				pinctrl-0 = <&pinctrl_uart1>;
+				status = "disabled";
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/sama5d3xcm.dtsi b/arch/arm/boot/dts/sama5d3xcm.dtsi
index 31ed9e3bb649..726a0f35100c 100644
--- a/arch/arm/boot/dts/sama5d3xcm.dtsi
+++ b/arch/arm/boot/dts/sama5d3xcm.dtsi
@@ -6,7 +6,6 @@
  *
  * Licensed under GPLv2 or later.
  */
-#include "sama5d3.dtsi"
 
 / {
 	compatible = "atmel,samad3xcm", "atmel,sama5d3", "atmel,sama5";
-- 
cgit 


From f123248e172d150a2855b17a4908a23ba81bba1c Mon Sep 17 00:00:00 2001
From: Nicolas Ferre <nicolas.ferre@atmel.com>
Date: Fri, 11 Oct 2013 10:23:41 +0200
Subject: ARM: at91: remove init_machine() as default is suitable

Since 883a106b0866ca8d75b5520bdb3ca1cf8e3730ba (ARM: default
machine descriptor for multiplatform) we can remove the SoC-specific
callback init_machine() to use the default code.
This cleans up the code and reduces the number of lines.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
 arch/arm/mach-at91/board-dt-rm9200.c | 7 -------
 arch/arm/mach-at91/board-dt-sam9.c   | 7 -------
 2 files changed, 14 deletions(-)

diff --git a/arch/arm/mach-at91/board-dt-rm9200.c b/arch/arm/mach-at91/board-dt-rm9200.c
index 3fcb6623a33e..3a185faee795 100644
--- a/arch/arm/mach-at91/board-dt-rm9200.c
+++ b/arch/arm/mach-at91/board-dt-rm9200.c
@@ -14,7 +14,6 @@
 #include <linux/gpio.h>
 #include <linux/of.h>
 #include <linux/of_irq.h>
-#include <linux/of_platform.h>
 
 #include <asm/setup.h>
 #include <asm/irq.h>
@@ -36,11 +35,6 @@ static void __init at91rm9200_dt_init_irq(void)
 	of_irq_init(irq_of_match);
 }
 
-static void __init at91rm9200_dt_device_init(void)
-{
-	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
-}
-
 static const char *at91rm9200_dt_board_compat[] __initdata = {
 	"atmel,at91rm9200",
 	NULL
@@ -52,6 +46,5 @@ DT_MACHINE_START(at91rm9200_dt, "Atmel AT91RM9200 (Device Tree)")
 	.handle_irq	= at91_aic_handle_irq,
 	.init_early	= at91rm9200_dt_initialize,
 	.init_irq	= at91rm9200_dt_init_irq,
-	.init_machine	= at91rm9200_dt_device_init,
 	.dt_compat	= at91rm9200_dt_board_compat,
 MACHINE_END
diff --git a/arch/arm/mach-at91/board-dt-sam9.c b/arch/arm/mach-at91/board-dt-sam9.c
index 8db30132abed..3dab868b02fa 100644
--- a/arch/arm/mach-at91/board-dt-sam9.c
+++ b/arch/arm/mach-at91/board-dt-sam9.c
@@ -13,7 +13,6 @@
 #include <linux/gpio.h>
 #include <linux/of.h>
 #include <linux/of_irq.h>
-#include <linux/of_platform.h>
 
 #include <asm/setup.h>
 #include <asm/irq.h>
@@ -37,11 +36,6 @@ static void __init at91_dt_init_irq(void)
 	of_irq_init(irq_of_match);
 }
 
-static void __init at91_dt_device_init(void)
-{
-	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
-}
-
 static const char *at91_dt_board_compat[] __initdata = {
 	"atmel,at91sam9",
 	NULL
@@ -54,6 +48,5 @@ DT_MACHINE_START(at91sam_dt, "Atmel AT91SAM (Device Tree)")
 	.handle_irq	= at91_aic_handle_irq,
 	.init_early	= at91_dt_initialize,
 	.init_irq	= at91_dt_init_irq,
-	.init_machine	= at91_dt_device_init,
 	.dt_compat	= at91_dt_board_compat,
 MACHINE_END
-- 
cgit 


From eb438b5f3065dc270484919e8b88486d0cff59d3 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 16 Oct 2013 15:31:07 +0300
Subject: Bluetooth: Fix updating the right variable in update_scan_rsp_data()

This function should be operating on scan_rsp_data_len and scan_rsp_data
and not the advertising data variables.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 0bf823b5d90e..a727b47fcac5 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -575,12 +575,12 @@ static void update_scan_rsp_data(struct hci_request *req)
 
 	len = create_scan_rsp_data(hdev, cp.data);
 
-	if (hdev->adv_data_len == len &&
-	    memcmp(cp.data, hdev->adv_data, len) == 0)
+	if (hdev->scan_rsp_data_len == len &&
+	    memcmp(cp.data, hdev->scan_rsp_data, len) == 0)
 		return;
 
-	memcpy(hdev->adv_data, cp.data, sizeof(cp.data));
-	hdev->adv_data_len = len;
+	memcpy(hdev->scan_rsp_data, cp.data, sizeof(cp.data));
+	hdev->scan_rsp_data_len = len;
 
 	cp.length = len;
 
-- 
cgit 


From 97119f37bbebbab852899bd37ed52b80396728f9 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Fri, 27 Sep 2013 17:34:10 -0300
Subject: perf trace: Split fd -> pathname array handling

So that the part that grows the array as needed is untied from the code
that reads the /proc/pid/fd symlink and can be used for the vfs_getname
hook that will set the fd -> path translation too, when available.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-ydo5rumyv9hdc1vsfmqamugs@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 49 +++++++++++++++++++++++++---------------------
 1 file changed, 27 insertions(+), 22 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index d0f91fe755a3..763bef45afad 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -975,30 +975,9 @@ struct trace {
 	double			runtime_ms;
 };
 
-static int thread__read_fd_path(struct thread *thread, int fd)
+static int trace__set_fd_pathname(struct thread *thread, int fd, const char *pathname)
 {
 	struct thread_trace *ttrace = thread->priv;
-	char linkname[PATH_MAX], pathname[PATH_MAX];
-	struct stat st;
-	int ret;
-
-	if (thread->pid_ == thread->tid) {
-		scnprintf(linkname, sizeof(linkname),
-			  "/proc/%d/fd/%d", thread->pid_, fd);
-	} else {
-		scnprintf(linkname, sizeof(linkname),
-			  "/proc/%d/task/%d/fd/%d", thread->pid_, thread->tid, fd);
-	}
-
-	if (lstat(linkname, &st) < 0 || st.st_size + 1 > (off_t)sizeof(pathname))
-		return -1;
-
-	ret = readlink(linkname, pathname, sizeof(pathname));
-
-	if (ret < 0 || ret > st.st_size)
-		return -1;
-
-	pathname[ret] = '\0';
 
 	if (fd > ttrace->paths.max) {
 		char **npath = realloc(ttrace->paths.table, (fd + 1) * sizeof(char *));
@@ -1022,6 +1001,32 @@ static int thread__read_fd_path(struct thread *thread, int fd)
 	return ttrace->paths.table[fd] != NULL ? 0 : -1;
 }
 
+static int thread__read_fd_path(struct thread *thread, int fd)
+{
+	char linkname[PATH_MAX], pathname[PATH_MAX];
+	struct stat st;
+	int ret;
+
+	if (thread->pid_ == thread->tid) {
+		scnprintf(linkname, sizeof(linkname),
+			  "/proc/%d/fd/%d", thread->pid_, fd);
+	} else {
+		scnprintf(linkname, sizeof(linkname),
+			  "/proc/%d/task/%d/fd/%d", thread->pid_, thread->tid, fd);
+	}
+
+	if (lstat(linkname, &st) < 0 || st.st_size + 1 > (off_t)sizeof(pathname))
+		return -1;
+
+	ret = readlink(linkname, pathname, sizeof(pathname));
+
+	if (ret < 0 || ret > st.st_size)
+		return -1;
+
+	pathname[ret] = '\0';
+	return trace__set_fd_pathname(thread, fd, pathname);
+}
+
 static const char *thread__fd_path(struct thread *thread, int fd, bool live)
 {
 	struct thread_trace *ttrace = thread->priv;
-- 
cgit 


From c522739d72a341a3e74a369ce6298b9412813d3f Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Fri, 27 Sep 2013 18:06:19 -0300
Subject: perf trace: Use vfs_getname hook if available

Initially it tries to find a probe:vfs_getname that should be setup
with:

 perf probe 'vfs_getname=getname_flags:65 pathname=result->name:string'

or with slight changes to cope with code flux in the getname_flags code.

In the future, if a "vfs:getname" tracepoint becomes available, then it
will be preferred.

This is not strictly required and more expensive method of reading the
/proc/pid/fd/ symlink will be used when the fd->path array entry is not
populated by a previous vfs_getname + open syscall ret sequence.

As with any other 'perf probe' probe the setup must be done just once
and the probe will be left inactive, waiting for users, be it 'perf
trace' of any other tool.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-ujg8se8glq5izmu8cdkq15po@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-trace.txt |  4 ++
 tools/perf/builtin-trace.c              | 83 ++++++++++++++++++++++++++++-----
 2 files changed, 75 insertions(+), 12 deletions(-)

diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt
index 54139c6457f8..7b0497f95a75 100644
--- a/tools/perf/Documentation/perf-trace.txt
+++ b/tools/perf/Documentation/perf-trace.txt
@@ -97,6 +97,10 @@ the thread executes on the designated CPUs. Default is to monitor all CPUs.
 	Show a summary of syscalls by thread with min, max, and average times (in
     msec) and relative stddev.
 
+--tool_stats::
+	Show tool stats such as number of times fd->pathname was discovered thru
+	hooking the open syscall return + vfs_getname or via reading /proc/pid/fd, etc.
+
 SEE ALSO
 --------
 linkperf:perf-record[1], linkperf:perf-script[1]
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 763bef45afad..86d2b1f2399c 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -951,7 +951,10 @@ fail:
 
 struct trace {
 	struct perf_tool	tool;
-	int			audit_machine;
+	struct {
+		int		machine;
+		int		open_id;
+	}			audit;
 	struct {
 		int		max;
 		struct syscall  *table;
@@ -965,14 +968,19 @@ struct trace {
 	struct strlist		*ev_qualifier;
 	bool			not_ev_qualifier;
 	bool			live;
+	const char 		*last_vfs_getname;
 	struct intlist		*tid_list;
 	struct intlist		*pid_list;
 	bool			sched;
 	bool			multiple_threads;
 	bool			summary;
 	bool			show_comm;
+	bool			show_tool_stats;
 	double			duration_filter;
 	double			runtime_ms;
+	struct {
+		u64		vfs_getname, proc_getname;
+	} stats;
 };
 
 static int trace__set_fd_pathname(struct thread *thread, int fd, const char *pathname)
@@ -1027,7 +1035,8 @@ static int thread__read_fd_path(struct thread *thread, int fd)
 	return trace__set_fd_pathname(thread, fd, pathname);
 }
 
-static const char *thread__fd_path(struct thread *thread, int fd, bool live)
+static const char *thread__fd_path(struct thread *thread, int fd,
+				   struct trace *trace)
 {
 	struct thread_trace *ttrace = thread->priv;
 
@@ -1037,9 +1046,13 @@ static const char *thread__fd_path(struct thread *thread, int fd, bool live)
 	if (fd < 0)
 		return NULL;
 
-	if ((fd > ttrace->paths.max || ttrace->paths.table[fd] == NULL) &&
-	    (!live || thread__read_fd_path(thread, fd)))
-		return NULL;
+	if ((fd > ttrace->paths.max || ttrace->paths.table[fd] == NULL))
+		if (!trace->live)
+			return NULL;
+		++trace->stats.proc_getname;
+		if (thread__read_fd_path(thread, fd)) {
+			return NULL;
+	}
 
 	return ttrace->paths.table[fd];
 }
@@ -1049,7 +1062,7 @@ static size_t syscall_arg__scnprintf_fd(char *bf, size_t size,
 {
 	int fd = arg->val;
 	size_t printed = scnprintf(bf, size, "%d", fd);
-	const char *path = thread__fd_path(arg->thread, fd, arg->trace->live);
+	const char *path = thread__fd_path(arg->thread, fd, arg->trace);
 
 	if (path)
 		printed += scnprintf(bf + printed, size - printed, "<%s>", path);
@@ -1186,7 +1199,7 @@ static int trace__read_syscall_info(struct trace *trace, int id)
 {
 	char tp_name[128];
 	struct syscall *sc;
-	const char *name = audit_syscall_to_name(id, trace->audit_machine);
+	const char *name = audit_syscall_to_name(id, trace->audit.machine);
 
 	if (name == NULL)
 		return -1;
@@ -1450,6 +1463,12 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
 
 	ret = perf_evsel__intval(evsel, sample, "ret");
 
+	if (id == trace->audit.open_id && ret >= 0 && trace->last_vfs_getname) {
+		trace__set_fd_pathname(thread, ret, trace->last_vfs_getname);
+		trace->last_vfs_getname = NULL;
+		++trace->stats.vfs_getname;
+	}
+
 	ttrace = thread->priv;
 
 	ttrace->exit_time = sample->time;
@@ -1494,6 +1513,13 @@ out:
 	return 0;
 }
 
+static int trace__vfs_getname(struct trace *trace, struct perf_evsel *evsel,
+			      struct perf_sample *sample)
+{
+	trace->last_vfs_getname = perf_evsel__rawptr(evsel, sample, "pathname");
+	return 0;
+}
+
 static int trace__sched_stat_runtime(struct trace *trace, struct perf_evsel *evsel,
 				     struct perf_sample *sample)
 {
@@ -1616,6 +1642,22 @@ static int trace__record(int argc, const char **argv)
 
 static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp);
 
+static void perf_evlist__add_vfs_getname(struct perf_evlist *evlist)
+{
+	struct perf_evsel *evsel = perf_evsel__newtp("probe", "vfs_getname",
+						     evlist->nr_entries);
+	if (evsel == NULL)
+		return;
+
+	if (perf_evsel__field(evsel, "pathname") == NULL) {
+		perf_evsel__delete(evsel);
+		return;
+	}
+
+	evsel->handler.func = trace__vfs_getname;
+	perf_evlist__add(evlist, evsel);
+}
+
 static int trace__run(struct trace *trace, int argc, const char **argv)
 {
 	struct perf_evlist *evlist = perf_evlist__new();
@@ -1635,6 +1677,8 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
 		perf_evlist__add_newtp(evlist, "raw_syscalls", "sys_exit", trace__sys_exit))
 		goto out_error_tp;
 
+	perf_evlist__add_vfs_getname(evlist);
+
 	if (trace->sched &&
 		perf_evlist__add_newtp(evlist, "sched", "sched_stat_runtime",
 				trace__sched_stat_runtime))
@@ -1741,12 +1785,22 @@ again:
 
 	if (done)
 		perf_evlist__disable(evlist);
-
-	goto again;
+	else
+		goto again;
 
 out_unmap_evlist:
-	if (!err && trace->summary)
-		trace__fprintf_thread_summary(trace, trace->output);
+	if (!err) {
+		if (trace->summary)
+			trace__fprintf_thread_summary(trace, trace->output);
+
+		if (trace->show_tool_stats) {
+			fprintf(trace->output, "Stats:\n "
+					       " vfs_getname : %" PRIu64 "\n"
+					       " proc_getname: %" PRIu64 "\n",
+				trace->stats.vfs_getname,
+				trace->stats.proc_getname);
+		}
+	}
 
 	perf_evlist__munmap(evlist);
 out_close_evlist:
@@ -1788,6 +1842,7 @@ static int trace__replay(struct trace *trace)
 	const struct perf_evsel_str_handler handlers[] = {
 		{ "raw_syscalls:sys_enter",  trace__sys_enter, },
 		{ "raw_syscalls:sys_exit",   trace__sys_exit, },
+		{ "probe:vfs_getname",	     trace__vfs_getname, },
 	};
 
 	struct perf_session *session;
@@ -1997,7 +2052,10 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
 		NULL
 	};
 	struct trace trace = {
-		.audit_machine = audit_detect_machine(),
+		.audit = {
+			.machine = audit_detect_machine(),
+			.open_id = audit_name_to_syscall("open", trace.audit.machine),
+		},
 		.syscalls = {
 			. max = -1,
 		},
@@ -2019,6 +2077,7 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
 	const struct option trace_options[] = {
 	OPT_BOOLEAN(0, "comm", &trace.show_comm,
 		    "show the thread COMM next to its id"),
+	OPT_BOOLEAN(0, "tool_stats", &trace.show_tool_stats, "show tool stats"),
 	OPT_STRING('e', "expr", &ev_qualifier_str, "expr",
 		    "list of events to trace"),
 	OPT_STRING('o', "output", &output_name, "file", "output file name"),
-- 
cgit 


From 70e389cc7fedc4c279ef28e970658a39adc7dec7 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 16 Oct 2013 12:04:07 +0100
Subject: MAINTAINERS: Add patterns for DTS files for AT91

Help ensure updates to the DTS files for AT91 machines and devices get
sent to the maintainers by adding patterns to the MAINTAINERS entry for
the architecture.

Signed-off-by: Mark Brown <broonie@linaro.org>
[nicolas.ferre@atmel.com: add "sama*.dts/dtsi" strings to the list]
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
 MAINTAINERS | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index e61c2e83fc2b..26dcb991a614 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -763,6 +763,10 @@ W:	http://maxim.org.za/at91_26.html
 W:	http://www.linux4sam.org
 S:	Supported
 F:	arch/arm/mach-at91/
+F:	arch/arm/boot/dts/at91*.dts
+F:	arch/arm/boot/dts/at91*.dtsi
+F:	arch/arm/boot/dts/sama*.dts
+F:	arch/arm/boot/dts/sama*.dtsi
 
 ARM/CALXEDA HIGHBANK ARCHITECTURE
 M:	Rob Herring <rob.herring@calxeda.com>
-- 
cgit 


From bfe4655f05d7ec4a7c0c1c7e4051862f824cd8ec Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 16 Oct 2013 17:13:26 +0300
Subject: Bluetooth: Reintroduce socket restrictions for LE sockets

Right now we do not allow user space to use connection oriented channels
on LE, and the only CID that can be used is the Attribute Protocol one.
These restrictions went away together with the recent refactoring of the
L2CAP code, but this patch puts them back to their appropriate places.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/l2cap_sock.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 68f486a586ff..95498d553b00 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -72,6 +72,15 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
 	if (!bdaddr_type_is_valid(la.l2_bdaddr_type))
 		return -EINVAL;
 
+	if (bdaddr_type_is_le(la.l2_bdaddr_type)) {
+		/* Connection oriented channels are not supported on LE */
+		if (la.l2_psm)
+			return -EINVAL;
+		/* We only allow ATT user space socket */
+		if (la.l2_cid != L2CAP_CID_ATT)
+			return -EINVAL;
+	}
+
 	lock_sock(sk);
 
 	if (sk->sk_state != BT_OPEN) {
@@ -156,6 +165,15 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr,
 	if (chan->src_type != BDADDR_BREDR && la.l2_bdaddr_type == BDADDR_BREDR)
 		return -EINVAL;
 
+	if (bdaddr_type_is_le(la.l2_bdaddr_type)) {
+		/* Connection oriented channels are not supported on LE */
+		if (la.l2_psm)
+			return -EINVAL;
+		/* We only allow ATT user space socket */
+		if (la.l2_cid != L2CAP_CID_ATT)
+			return -EINVAL;
+	}
+
 	err = l2cap_chan_connect(chan, la.l2_psm, __le16_to_cpu(la.l2_cid),
 				 &la.l2_bdaddr, la.l2_bdaddr_type);
 	if (err)
-- 
cgit 


From 9208e3110bf0a6ba4ded56e374857d4b6609c911 Mon Sep 17 00:00:00 2001
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Wed, 16 Oct 2013 13:15:14 +0300
Subject: ACPI / platform: add ACPI ID for a Broadcom GPS chip

This adds ACPI ID for Broadcom GPS receiver BCM4752.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_platform.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index aef79db906fe..8a4cfc7e71f0 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -31,6 +31,7 @@ static const struct acpi_device_id acpi_platform_device_ids[] = {
 	{ "PNP0D40" },
 	{ "ACPI0003" },
 	{ "VPC2004" },
+	{ "BCM4752" },
 
 	/* Intel Smart Sound Technology */
 	{ "INT33C8" },
-- 
cgit 


From a97f4a66d8ee4faf0f31cc4ad3f4aa0baef23fc7 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Wed, 16 Oct 2013 14:20:25 +0200
Subject: dlm: Avoid that dlm_release_lockspace() incorrectly returns -EBUSY

When dlm_release_lockspace(ls, 1) is invoked on a busy system
immediately after the last dlm_unlock() AST has finished it can occur
that lkb_idr_is_local() is invoked for the unlocked LKB since removal
from ls_lkbidr only occurs after the AST has returned. If that happens
dlm_release_lockspace(ls, 1) will return -EBUSY instead of releasing
the lockspace. Fix this race condition by changing lkb_idr_is_local()
such that it only returns true for LKB's that have not yet been
unlocked.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: David Teigland <teigland@redhat.com>
---
 fs/dlm/lockspace.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index 88556dc0458e..d5abafd56a6d 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -706,9 +706,7 @@ static int lkb_idr_is_local(int id, void *p, void *data)
 {
 	struct dlm_lkb *lkb = p;
 
-	if (!lkb->lkb_nodeid)
-		return 1;
-	return 0;
+	return lkb->lkb_nodeid == 0 && lkb->lkb_grmode != DLM_LOCK_IV;
 }
 
 static int lkb_idr_is_any(int id, void *p, void *data)
-- 
cgit 


From 7bc18d9d3d7ffbc09dabb201933a063583a39027 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 16 Oct 2013 18:11:39 +0300
Subject: Bluetooth: Convert auto accept timer to use delayed work

Since the entire Bluetooth subsystem runs in workqueues these days there
is no need to use a timer for deferring work.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/hci_core.h |  2 +-
 net/bluetooth/hci_conn.c         | 14 ++++++--------
 net/bluetooth/hci_event.c        |  3 ++-
 3 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index d987c795ba14..2504a2553baa 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -341,8 +341,8 @@ struct hci_conn {
 	struct list_head chan_list;
 
 	struct delayed_work disc_work;
+	struct delayed_work auto_accept_work;
 	struct timer_list idle_timer;
-	struct timer_list auto_accept_timer;
 
 	struct device	dev;
 
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index ff04b051792d..8d1f466520a5 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -361,12 +361,12 @@ static void hci_conn_idle(unsigned long arg)
 	hci_conn_enter_sniff_mode(conn);
 }
 
-static void hci_conn_auto_accept(unsigned long arg)
+static void hci_conn_auto_accept(struct work_struct *work)
 {
-	struct hci_conn *conn = (void *) arg;
-	struct hci_dev *hdev = conn->hdev;
+	struct hci_conn *conn = container_of(work, struct hci_conn,
+					     auto_accept_work.work);
 
-	hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY, sizeof(conn->dst),
+	hci_send_cmd(conn->hdev, HCI_OP_USER_CONFIRM_REPLY, sizeof(conn->dst),
 		     &conn->dst);
 }
 
@@ -415,9 +415,8 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
 	INIT_LIST_HEAD(&conn->chan_list);
 
 	INIT_DELAYED_WORK(&conn->disc_work, hci_conn_timeout);
+	INIT_DELAYED_WORK(&conn->auto_accept_work, hci_conn_auto_accept);
 	setup_timer(&conn->idle_timer, hci_conn_idle, (unsigned long)conn);
-	setup_timer(&conn->auto_accept_timer, hci_conn_auto_accept,
-		    (unsigned long) conn);
 
 	atomic_set(&conn->refcnt, 0);
 
@@ -441,8 +440,7 @@ int hci_conn_del(struct hci_conn *conn)
 	del_timer(&conn->idle_timer);
 
 	cancel_delayed_work_sync(&conn->disc_work);
-
-	del_timer(&conn->auto_accept_timer);
+	cancel_delayed_work_sync(&conn->auto_accept_work);
 
 	if (conn->type == ACL_LINK) {
 		struct hci_conn *sco = conn->link;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index e71c98fedc9b..6c3b193951ad 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -3188,7 +3188,8 @@ static void hci_user_confirm_request_evt(struct hci_dev *hdev,
 
 		if (hdev->auto_accept_delay > 0) {
 			int delay = msecs_to_jiffies(hdev->auto_accept_delay);
-			mod_timer(&conn->auto_accept_timer, jiffies + delay);
+			queue_delayed_work(conn->hdev->workqueue,
+					   &conn->auto_accept_work, delay);
 			goto unlock;
 		}
 
-- 
cgit 


From a74a84f696537f38fa994c1b95a0dca9ae386865 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Wed, 16 Oct 2013 18:11:40 +0300
Subject: Bluetooth: Convert idle timer to use delayed work

There is no need to use a timer since the entire Bluetooth subsystem
runs using workqueues these days.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/hci_core.h |  4 ++--
 net/bluetooth/hci_conn.c         | 22 +++++++---------------
 2 files changed, 9 insertions(+), 17 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 2504a2553baa..07c2da4854ab 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -342,7 +342,7 @@ struct hci_conn {
 
 	struct delayed_work disc_work;
 	struct delayed_work auto_accept_work;
-	struct timer_list idle_timer;
+	struct delayed_work idle_work;
 
 	struct device	dev;
 
@@ -651,7 +651,7 @@ static inline void hci_conn_drop(struct hci_conn *conn)
 		switch (conn->type) {
 		case ACL_LINK:
 		case LE_LINK:
-			del_timer(&conn->idle_timer);
+			cancel_delayed_work(&conn->idle_work);
 			if (conn->state == BT_CONNECTED) {
 				timeo = conn->disc_timeout;
 				if (!conn->out)
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 8d1f466520a5..4e726505f52b 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -317,8 +317,10 @@ static void hci_conn_timeout(struct work_struct *work)
 }
 
 /* Enter sniff mode */
-static void hci_conn_enter_sniff_mode(struct hci_conn *conn)
+static void hci_conn_idle(struct work_struct *work)
 {
+	struct hci_conn *conn = container_of(work, struct hci_conn,
+					     idle_work.work);
 	struct hci_dev *hdev = conn->hdev;
 
 	BT_DBG("hcon %p mode %d", conn, conn->mode);
@@ -352,15 +354,6 @@ static void hci_conn_enter_sniff_mode(struct hci_conn *conn)
 	}
 }
 
-static void hci_conn_idle(unsigned long arg)
-{
-	struct hci_conn *conn = (void *) arg;
-
-	BT_DBG("hcon %p mode %d", conn, conn->mode);
-
-	hci_conn_enter_sniff_mode(conn);
-}
-
 static void hci_conn_auto_accept(struct work_struct *work)
 {
 	struct hci_conn *conn = container_of(work, struct hci_conn,
@@ -416,7 +409,7 @@ struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst)
 
 	INIT_DELAYED_WORK(&conn->disc_work, hci_conn_timeout);
 	INIT_DELAYED_WORK(&conn->auto_accept_work, hci_conn_auto_accept);
-	setup_timer(&conn->idle_timer, hci_conn_idle, (unsigned long)conn);
+	INIT_DELAYED_WORK(&conn->idle_work, hci_conn_idle);
 
 	atomic_set(&conn->refcnt, 0);
 
@@ -437,10 +430,9 @@ int hci_conn_del(struct hci_conn *conn)
 
 	BT_DBG("%s hcon %p handle %d", hdev->name, conn, conn->handle);
 
-	del_timer(&conn->idle_timer);
-
 	cancel_delayed_work_sync(&conn->disc_work);
 	cancel_delayed_work_sync(&conn->auto_accept_work);
+	cancel_delayed_work_sync(&conn->idle_work);
 
 	if (conn->type == ACL_LINK) {
 		struct hci_conn *sco = conn->link;
@@ -920,8 +912,8 @@ void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active)
 
 timer:
 	if (hdev->idle_timeout > 0)
-		mod_timer(&conn->idle_timer,
-			  jiffies + msecs_to_jiffies(hdev->idle_timeout));
+		queue_delayed_work(hdev->workqueue, &conn->idle_work,
+				   msecs_to_jiffies(hdev->idle_timeout));
 }
 
 /* Drop all connection on the device */
-- 
cgit 


From a96f5ba6f9004fa3af0f5d5fcde15e99849a5482 Mon Sep 17 00:00:00 2001
From: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Date: Wed, 16 Oct 2013 01:16:40 +0530
Subject: staging: vt6656: removed space related checkpatch warnings

Removed spaces around operators where it was not required
as per coding style
Added spaces around operators where it was necessary as
per coding style

Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/iwctl.c | 40 ++++++++++++++++++++--------------------
 1 file changed, 20 insertions(+), 20 deletions(-)

diff --git a/drivers/staging/vt6656/iwctl.c b/drivers/staging/vt6656/iwctl.c
index dc3201a9f3dc..7bdbf21fc9c5 100644
--- a/drivers/staging/vt6656/iwctl.c
+++ b/drivers/staging/vt6656/iwctl.c
@@ -60,7 +60,7 @@ struct iw_statistics *iwctl_get_wireless_stats(struct net_device *dev)
 	pDevice->wstats.status = pDevice->eOPMode;
 	if (pDevice->scStatistic.LinkQuality > 100)
 		pDevice->scStatistic.LinkQuality = 100;
-	pDevice->wstats.qual.qual =(u8)pDevice->scStatistic.LinkQuality;
+	pDevice->wstats.qual.qual = (u8)pDevice->scStatistic.LinkQuality;
 	RFvRSSITodBm(pDevice, (u8)(pDevice->uCurrRSSI), &ldBm);
 	pDevice->wstats.qual.level = ldBm;
 	pDevice->wstats.qual.noise = 0;
@@ -190,7 +190,7 @@ int iwctl_giwscan(struct net_device *dev, struct iw_request_info *info,
 		return -EAGAIN;
 	}
 	pBSS = &(pMgmt->sBSSList[0]);
-	for (ii = 0, jj = 0; jj < MAX_BSS_NUM ; jj++) {
+	for (ii = 0, jj = 0; jj < MAX_BSS_NUM; jj++) {
 		if (current_ev >= end_buf)
 			break;
 		pBSS = &(pMgmt->sBSSList[jj]);
@@ -225,7 +225,7 @@ int iwctl_giwscan(struct net_device *dev, struct iw_request_info *info,
 			iwe.u.freq.m = pBSS->uChannel;
 			iwe.u.freq.e = 0;
 			iwe.u.freq.i = 0;
-			current_ev = iwe_stream_add_event(info, current_ev,end_buf, &iwe, IW_EV_FREQ_LEN);
+			current_ev = iwe_stream_add_event(info, current_ev, end_buf, &iwe, IW_EV_FREQ_LEN);
 			{
 				int f = (int)pBSS->uChannel - 1;
 				if (f < 0)
@@ -786,7 +786,7 @@ int iwctl_siwessid(struct net_device *dev, struct iw_request_info *info,
 	if (wrq->flags == 0) {
 		// Just send an empty SSID list
 		memset(pMgmt->abyDesireSSID, 0, WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1);
-		memset(pMgmt->abyDesireBSSID, 0xFF,6);
+		memset(pMgmt->abyDesireBSSID, 0xFF, 6);
 		PRINT_K("set essid to 'any' \n");
 		// Unknown desired AP, so here need not associate??
 		return 0;
@@ -798,7 +798,7 @@ int iwctl_siwessid(struct net_device *dev, struct iw_request_info *info,
 
 		memcpy(pItemSSID->abySSID, extra, wrq->length);
 		if (pItemSSID->abySSID[wrq->length] == '\0') {
-			if (wrq->length>0)
+			if (wrq->length > 0)
 				pItemSSID->len = wrq->length;
 		} else {
 			pItemSSID->len = wrq->length;
@@ -806,7 +806,7 @@ int iwctl_siwessid(struct net_device *dev, struct iw_request_info *info,
 		PRINT_K("set essid to %s \n", pItemSSID->abySSID);
 
 		// mike: need clear desiredBSSID
-		if (pItemSSID->len==0) {
+		if (pItemSSID->len == 0) {
 			memset(pMgmt->abyDesireBSSID, 0xFF, 6);
 			return 0;
 		}
@@ -953,7 +953,7 @@ int iwctl_siwrate(struct net_device *dev, struct iw_request_info *info,
 	}
 	// Check that it is valid
 	// brate is index of abySupportedRates[]
-	if (brate > 13 ) {
+	if (brate > 13) {
 		rc = -EINVAL;
 		return rc;
 	}
@@ -1465,7 +1465,7 @@ int iwctl_siwauth(struct net_device *dev, struct iw_request_info *info,
 	case IW_AUTH_CIPHER_PAIRWISE:
 		pairwise = wrq->value;
 		PRINT_K("iwctl_siwauth:set pairwise=%d\n", pairwise);
-		if (pairwise == IW_AUTH_CIPHER_CCMP){
+		if (pairwise == IW_AUTH_CIPHER_CCMP) {
 			pDevice->eEncryptionStatus = Ndis802_11Encryption3Enabled;
 		} else if (pairwise == IW_AUTH_CIPHER_TKIP) {
 			pDevice->eEncryptionStatus = Ndis802_11Encryption2Enabled;
@@ -1490,13 +1490,13 @@ int iwctl_siwauth(struct net_device *dev, struct iw_request_info *info,
 		}
 		break;
 	case IW_AUTH_KEY_MGMT:
-		PRINT_K("iwctl_siwauth(wpa_version=%d):set KEY_MGMT=%d\n", wpa_version,wrq->value);
-		if (wpa_version == IW_AUTH_WPA_VERSION_WPA2){
+		PRINT_K("iwctl_siwauth(wpa_version=%d):set KEY_MGMT=%d\n", wpa_version, wrq->value);
+		if (wpa_version == IW_AUTH_WPA_VERSION_WPA2) {
 			if (wrq->value == IW_AUTH_KEY_MGMT_PSK)
 				pMgmt->eAuthenMode = WMAC_AUTH_WPA2PSK;
 			else pMgmt->eAuthenMode = WMAC_AUTH_WPA2;
 		} else if (wpa_version == IW_AUTH_WPA_VERSION_WPA) {
-			if (wrq->value == 0){
+			if (wrq->value == 0) {
 				pMgmt->eAuthenMode = WMAC_AUTH_WPANONE;
 			} else if (wrq->value == IW_AUTH_KEY_MGMT_PSK)
 				pMgmt->eAuthenMode = WMAC_AUTH_WPAPSK;
@@ -1558,17 +1558,17 @@ int iwctl_siwgenie(struct net_device *dev, struct iw_request_info *info,
 	if (pMgmt == NULL)
 		return -EFAULT;
 
-	if (wrq->length){
+	if (wrq->length) {
 		if ((wrq->length < 2) || (extra[1] + 2 != wrq->length)) {
 			ret = -EINVAL;
 			goto out;
 		}
-		if (wrq->length > MAX_WPA_IE_LEN){
+		if (wrq->length > MAX_WPA_IE_LEN) {
 			ret = -ENOMEM;
 			goto out;
 		}
 		memset(pMgmt->abyWPAIE, 0, MAX_WPA_IE_LEN);
-		if (copy_from_user(pMgmt->abyWPAIE, extra, wrq->length)){
+		if (copy_from_user(pMgmt->abyWPAIE, extra, wrq->length)) {
 			ret = -EFAULT;
 			goto out;
 		}
@@ -1615,7 +1615,7 @@ int iwctl_siwencodeext(struct net_device *dev, struct iw_request_info *info,
 	struct vnt_manager *pMgmt = &pDevice->vnt_mgmt;
 	struct iw_point *wrq = &wrqu->encoding;
 	struct iw_encode_ext *ext = (struct iw_encode_ext*)extra;
-	struct viawget_wpa_param *param=NULL;
+	struct viawget_wpa_param *param = NULL;
 // original member
 	wpa_alg alg_name;
 	u8 addr[6];
@@ -1658,8 +1658,8 @@ int iwctl_siwencodeext(struct net_device *dev, struct iw_request_info *info,
 		alg_name = WPA_ALG_CCMP;
 		break;
 	default:
-		PRINT_K("Unknown alg = %d\n",ext->alg);
-		ret= -ENOMEM;
+		PRINT_K("Unknown alg = %d\n", ext->alg);
+		ret = -ENOMEM;
 		goto error;
 	}
 // recover addr
@@ -1671,7 +1671,7 @@ int iwctl_siwencodeext(struct net_device *dev, struct iw_request_info *info,
 		set_tx = 1;
 // recover seq,seq_len
 	if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
-		seq_len=IW_ENCODE_SEQ_MAX_SIZE;
+		seq_len = IW_ENCODE_SEQ_MAX_SIZE;
 		memcpy(seq, ext->rx_seq, seq_len);
 	}
 // recover key,key_len
@@ -1702,7 +1702,7 @@ int iwctl_siwencodeext(struct net_device *dev, struct iw_request_info *info,
 /****set if current action is Network Manager count?? */
 /****this method is so foolish,but there is no other way??? */
 	if (param->u.wpa_key.alg_name == WPA_ALG_NONE) {
-		if (param->u.wpa_key.key_index ==0) {
+		if (param->u.wpa_key.key_index == 0) {
 			pDevice->bwextstep0 = true;
 		}
 		if ((pDevice->bwextstep0 == true) && (param->u.wpa_key.key_index == 1)) {
@@ -1761,7 +1761,7 @@ int iwctl_siwmlme(struct net_device *dev, struct iw_request_info *info,
 		ret = -EINVAL;
 		return ret;
 	}
-	switch (mlme->cmd){
+	switch (mlme->cmd) {
 	case IW_MLME_DEAUTH:
 	case IW_MLME_DISASSOC:
 		if (pDevice->bLinkPass == true) {
-- 
cgit 


From c744fd5fa832b003a77bd3a009f9ac533cd10853 Mon Sep 17 00:00:00 2001
From: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Date: Wed, 16 Oct 2013 01:16:41 +0530
Subject: staging: vt6656: Removed checkpatch whitespace errors

Removed whitespace related errors and warnings by removing
unnecessary spaces before new line in the quoted string
and spaces at start of any line or before tab to comply
with the coding style.

Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/iwctl.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/vt6656/iwctl.c b/drivers/staging/vt6656/iwctl.c
index 7bdbf21fc9c5..63917abbbd00 100644
--- a/drivers/staging/vt6656/iwctl.c
+++ b/drivers/staging/vt6656/iwctl.c
@@ -400,7 +400,7 @@ int iwctl_siwmode(struct net_device *dev, struct iw_request_info *info,
 			if (pDevice->flags & DEVICE_FLAGS_OPENED)
 				pDevice->bCommit = true;
 		}
-		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "set mode to ad-hoc \n");
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "set mode to ad-hoc\n");
 		break;
 	case IW_MODE_AUTO:
 	case IW_MODE_INFRA:
@@ -409,7 +409,7 @@ int iwctl_siwmode(struct net_device *dev, struct iw_request_info *info,
 			if (pDevice->flags & DEVICE_FLAGS_OPENED)
 				pDevice->bCommit = true;
 		}
-		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "set mode to infrastructure \n");
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "set mode to infrastructure\n");
 		break;
 	case IW_MODE_MASTER:
 
@@ -422,7 +422,7 @@ int iwctl_siwmode(struct net_device *dev, struct iw_request_info *info,
 			if (pDevice->flags & DEVICE_FLAGS_OPENED)
 				pDevice->bCommit = true;
 		}
-		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "set mode to Access Point \n");
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "set mode to Access Point\n");
 		break;
 
 	case IW_MODE_REPEAT:
@@ -787,7 +787,7 @@ int iwctl_siwessid(struct net_device *dev, struct iw_request_info *info,
 		// Just send an empty SSID list
 		memset(pMgmt->abyDesireSSID, 0, WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1);
 		memset(pMgmt->abyDesireBSSID, 0xFF, 6);
-		PRINT_K("set essid to 'any' \n");
+		PRINT_K("set essid to 'any'\n");
 		// Unknown desired AP, so here need not associate??
 		return 0;
 	} else {
@@ -803,7 +803,7 @@ int iwctl_siwessid(struct net_device *dev, struct iw_request_info *info,
 		} else {
 			pItemSSID->len = wrq->length;
 		}
-		PRINT_K("set essid to %s \n", pItemSSID->abySSID);
+		PRINT_K("set essid to %s\n", pItemSSID->abySSID);
 
 		// mike: need clear desiredBSSID
 		if (pItemSSID->len == 0) {
@@ -860,7 +860,7 @@ int iwctl_siwessid(struct net_device *dev, struct iw_request_info *info,
 			return 0;
 		}
 
-		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "set essid = %s \n", pItemSSID->abySSID);
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "set essid = %s\n", pItemSSID->abySSID);
 	}
 
 	if (pDevice->flags & DEVICE_FLAGS_OPENED)
@@ -893,7 +893,7 @@ int iwctl_giwessid(struct net_device *dev, struct iw_request_info *info,
 	memcpy(extra, pItemSSID->abySSID, pItemSSID->len);
 	extra[pItemSSID->len] = '\0';
 
-        wrq->length = pItemSSID->len;
+	wrq->length = pItemSSID->len;
 	wrq->flags = 1; // active
 
 	return 0;
@@ -915,7 +915,7 @@ int iwctl_siwrate(struct net_device *dev, struct iw_request_info *info,
 		0x60, 0x6C, 0x90
 	};
 
-	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " SIOCSIWRATE \n");
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " SIOCSIWRATE\n");
 	if (!(pDevice->flags & DEVICE_FLAGS_OPENED)) {
 		rc = -EINVAL;
 		return rc;
@@ -967,7 +967,7 @@ int iwctl_siwrate(struct net_device *dev, struct iw_request_info *info,
 			pDevice->uConnectionRate = 3;
 		} else {
 			pDevice->uConnectionRate = brate;
-			DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Fixed to Rate %d \n", pDevice->uConnectionRate);
+			DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Fixed to Rate %d\n", pDevice->uConnectionRate);
 		}
 	} else {
 		pDevice->bFixRate = false;
@@ -1017,7 +1017,7 @@ int iwctl_giwrate(struct net_device *dev, struct iw_request_info *info,
 			if (pDevice->byBBType == BB_TYPE_11A)
 				brate = 0x6C;
 		}
-    		if (pDevice->uConnectionRate == 13)
+		if (pDevice->uConnectionRate == 13)
 			brate = abySupportedRates[pDevice->wCurrentRate];
 		wrq->value = brate * 500000;
 		// If more than one rate, set auto
@@ -1286,7 +1286,7 @@ int iwctl_giwencode(struct net_device *dev, struct iw_request_info *info,
 	if (index < 1) { // get default key
 		if (pDevice->byKeyIndex < WLAN_WEP_NKEYS)
 			index = pDevice->byKeyIndex;
-         	else
+		else
 			index = 0;
 	} else {
 		index--;
@@ -1366,14 +1366,14 @@ int iwctl_siwpower(struct net_device *dev, struct iw_request_info *info,
 
 	switch (wrq->flags & IW_POWER_MODE) {
 	case IW_POWER_UNICAST_R:
-		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " SIOCSIWPOWER: IW_POWER_UNICAST_R \n");
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " SIOCSIWPOWER: IW_POWER_UNICAST_R\n");
 		rc = -EINVAL;
 		break;
 	case IW_POWER_ALL_R:
-		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " SIOCSIWPOWER: IW_POWER_ALL_R \n");
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " SIOCSIWPOWER: IW_POWER_ALL_R\n");
 		rc = -EINVAL;
 	case IW_POWER_ON:
-		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " SIOCSIWPOWER: IW_POWER_ON \n");
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO " SIOCSIWPOWER: IW_POWER_ON\n");
 		break;
 	default:
 		rc = -EINVAL;
-- 
cgit 


From 7ed57bca58ba3befc02d52639b128c5bcf5deeb3 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Wed, 16 Oct 2013 01:42:13 +0530
Subject: Staging: btmtk_usb: Fix Sparse Warning of incorrect type in
 assignment

This patch fixes the following Sparse Warnings in btmtk_usb.c:

drivers/staging/btmtk_usb/btmtk_usb.c:676:39: warning: incorrect type in assignment (different base types)
drivers/staging/btmtk_usb/btmtk_usb.c:676:39:    expected unsigned int [unsigned] [usertype] packet_header
drivers/staging/btmtk_usb/btmtk_usb.c:676:39:    got restricted __le32 [usertype] <noident>

drivers/staging/btmtk_usb/btmtk_usb.c:736:31: warning: incorrect type in assignment (different base types)
drivers/staging/btmtk_usb/btmtk_usb.c:736:31:    expected unsigned int [unsigned] [addressable] [usertype] packet_header
drivers/staging/btmtk_usb/btmtk_usb.c:736:31:    got restricted __le32 [usertype] <noident>

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/btmtk_usb/btmtk_usb.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/btmtk_usb/btmtk_usb.c b/drivers/staging/btmtk_usb/btmtk_usb.c
index cb315b5315ac..7a9bf3b57810 100644
--- a/drivers/staging/btmtk_usb/btmtk_usb.c
+++ b/drivers/staging/btmtk_usb/btmtk_usb.c
@@ -566,6 +566,7 @@ static int btmtk_usb_load_fw(struct btmtk_usb_data *data)
 	void *buf;
 	u32 cur_len = 0;
 	u32 packet_header = 0;
+	__le32 packet_header_le;
 	u32 value;
 	u32 ilm_len = 0, dlm_len = 0;
 	u16 fw_ver, build_ver;
@@ -679,9 +680,9 @@ loadfw_protect:
 		if (sent_len > 0) {
 			packet_header &= ~(0xffffffff);
 			packet_header |= (sent_len << 16);
-			packet_header = cpu_to_le32(packet_header);
+			packet_header_le = cpu_to_le32(packet_header);
 
-			memmove(buf, &packet_header, 4);
+			memmove(buf, &packet_header_le, 4);
 			memmove(buf + 4, data->firmware->data + 32 + cur_len,
 					sent_len);
 
@@ -739,9 +740,9 @@ loadfw_protect:
 
 		packet_header &= ~(0xffffffff);
 		packet_header |= (sent_len << 16);
-		packet_header = cpu_to_le32(packet_header);
+		packet_header_le = cpu_to_le32(packet_header);
 
-		memmove(buf, &packet_header, 4);
+		memmove(buf, &packet_header_le, 4);
 		memmove(buf + 4,
 			data->firmware->data + 32 + ilm_len + cur_len,
 			sent_len);
-- 
cgit 


From 9e80d03c757085987377e7e08fa858ee6912a5c2 Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Tue, 15 Oct 2013 14:05:09 -0700
Subject: staging: ft1000: change put_request_value() header to single line
 comment in ft1000_download.c

As per coding style,C99 comments are not allowed
also, the formal header contained empty space and
redundant information that's right there in the function

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_download.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index 97950b98919f..1d9f07aeecac 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -351,19 +351,7 @@ static long get_request_value(struct ft1000_usb *ft1000dev)
 }
 
 
-//---------------------------------------------------------------------------
-// Function:    put_request_value
-//
-// Parameters:  struct ft1000_usb  - device structure
-//              long lvalue - value to be put into DPRAM location DWNLD_MAG1_SIZE_LOC
-//
-// Returns:     none
-//
-// Description: This function writes a value to DWNLD_MAG1_SIZE_LOC
-//
-// Notes:
-//
-//---------------------------------------------------------------------------
+/* writes a value to DWNLD_MAG1_SIZE_LOC */
 static void put_request_value(struct ft1000_usb *ft1000dev, long lvalue)
 {
 	u32    tempx;
-- 
cgit 


From b30f4e234f3fd771b01137ff92c7b9a2caa67f10 Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Tue, 15 Oct 2013 14:05:41 -0700
Subject: staging: ft1000: change hdr_checksum() header to one line comment in
 ft1000_download.c

As per coding style,C99 comments are not allowed
also, the formal header contained empty space and
redundant information that's right there in the function

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_download.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index 1d9f07aeecac..95c89e937cfa 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -364,18 +364,7 @@ static void put_request_value(struct ft1000_usb *ft1000dev, long lvalue)
 
 
 
-//---------------------------------------------------------------------------
-// Function:    hdr_checksum
-//
-// Parameters:  struct pseudo_hdr *pHdr - Pseudo header pointer
-//
-// Returns:     checksum - success
-//
-// Description: This function returns the checksum of the pseudo header
-//
-// Notes:
-//
-//---------------------------------------------------------------------------
+/* returns the checksum of the pseudo header */
 static u16 hdr_checksum(struct pseudo_hdr *pHdr)
 {
 	u16   *usPtr = (u16 *)pHdr;
-- 
cgit 


From 69f7be1fbaabe775f5c6b0a2762ebc9a82ded870 Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Tue, 15 Oct 2013 14:06:12 -0700
Subject: staging: ft1000: change write_blk header to /* */ style in
 ft1000_download.c

As per coding style, C99 comments are not allowed
removed some redundant information and empty space
Left the parameter descriptions because the
parameter list is long and cryptic looking

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../staging/ft1000/ft1000-usb/ft1000_download.c    | 23 ++++++----------------
 1 file changed, 6 insertions(+), 17 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index 95c89e937cfa..becab042aee4 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -389,23 +389,12 @@ static int check_buffers(u16 *buff_w, u16 *buff_r, int len, int offset)
 	return 0;
 }
 
-//---------------------------------------------------------------------------
-// Function:    write_blk
-//
-// Parameters:  struct ft1000_usb  - device structure
-//              u16 **pUsFile - DSP image file pointer in u16
-//              u8  **pUcFile - DSP image file pointer in u8
-//              long   word_length - length of the buffer to be written
-//                                   to DPRAM
-//
-// Returns:     STATUS_SUCCESS - success
-//              STATUS_FAILURE - failure
-//
-// Description: This function writes a block of DSP image to DPRAM
-//
-// Notes:
-//
-//---------------------------------------------------------------------------
+/* writes a block of DSP image to DPRAM
+ * Parameters:  struct ft1000_usb  - device structure
+ *              u16 **pUsFile - DSP image file pointer in u16
+ *              u8  **pUcFile - DSP image file pointer in u8
+ *              long word_length - length of the buffer to be written to DPRAM
+ */
 static u32 write_blk (struct ft1000_usb *ft1000dev, u16 **pUsFile, u8 **pUcFile, long word_length)
 {
    u32 Status = STATUS_SUCCESS;
-- 
cgit 


From 456ae7ebfd2f38103f620294a7f3b92539baca04 Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Tue, 15 Oct 2013 14:06:41 -0700
Subject: staging: ft1000: change write_block_fifo() header to /* */ style in
 ft1000_download.c

As per coding style, C99 comments are not allowed
removed some redundant information and empty space
Left the parameter descriptions because the
parameter list is long and cryptic looking

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../staging/ft1000/ft1000-usb/ft1000_download.c    | 23 ++++++----------------
 1 file changed, 6 insertions(+), 17 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index becab042aee4..b3a37eaa04df 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -517,23 +517,12 @@ static void usb_dnld_complete (struct urb *urb)
     //DEBUG("****** usb_dnld_complete\n");
 }
 
-//---------------------------------------------------------------------------
-// Function:    write_blk_fifo
-//
-// Parameters:  struct ft1000_usb  - device structure
-//              u16 **pUsFile - DSP image file pointer in u16
-//              u8  **pUcFile - DSP image file pointer in u8
-//              long   word_length - length of the buffer to be written
-//                                   to DPRAM
-//
-// Returns:     STATUS_SUCCESS - success
-//              STATUS_FAILURE - failure
-//
-// Description: This function writes a block of DSP image to DPRAM
-//
-// Notes:
-//
-//---------------------------------------------------------------------------
+/* writes a block of DSP image to DPRAM
+ * Parameters:  struct ft1000_usb  - device structure
+ *              u16 **pUsFile - DSP image file pointer in u16
+ *              u8  **pUcFile - DSP image file pointer in u8
+ *              long word_length - length of the buffer to be written to DPRAM
+ */
 static u32 write_blk_fifo(struct ft1000_usb *ft1000dev, u16 **pUsFile,
 			  u8 **pUcFile, long word_length)
 {
-- 
cgit 


From 4b31e1f8ff7165832d4e7293af4a0b5672217103 Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Tue, 15 Oct 2013 14:07:09 -0700
Subject: staging: ft1000: change scram_dnldr() header to one line comment in
 ft1000_download.c

As per coding style,C99 comments are not allowed
also, the formal header contained empty space and
redundant information that's right there in the function

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_download.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index b3a37eaa04df..1a1413d31af6 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -554,18 +554,7 @@ static u32 write_blk_fifo(struct ft1000_usb *ft1000dev, u16 **pUsFile,
 	return Status;
 }
 
-//---------------------------------------------------------------------------
-//
-//  Function:   scram_dnldr
-//
-//  Synopsis:   Scramble downloader for Harley based ASIC via USB interface
-//
-//  Arguments:  pFileStart              - pointer to start of file
-//              FileLength              - file length
-//
-//  Returns:    status                  - return code
-//---------------------------------------------------------------------------
-
+/* Scramble downloader for Harley based ASIC via USB interface */
 u16 scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 		u32 FileLength)
 {
-- 
cgit 


From 46326d26223bd5c6f39d127e6d0d8f18bd0338f6 Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Wed, 16 Oct 2013 01:59:17 +0300
Subject: Staging: rtl8192u: fix sparse warnings for static functions

Fix sparse warnings in static function in driver rtl8192u

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../staging/rtl8192u/ieee80211/ieee80211_module.c  |  2 +-
 drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c  |  2 +-
 drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c  | 16 +++++--
 .../staging/rtl8192u/ieee80211/rtl819x_BAProc.c    |  6 ++-
 drivers/staging/rtl8192u/r8192U_core.c             | 53 ++++++++++++----------
 5 files changed, 46 insertions(+), 33 deletions(-)

diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
index 434c43127183..4b036a8db5a1 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_module.c
@@ -241,7 +241,7 @@ static int debug = \
 			    //IEEE80211_DL_DATA	|
 			    IEEE80211_DL_ERR	  //awayls open this flags to show error out
 			    ;
-struct proc_dir_entry *ieee80211_proc;
+static struct proc_dir_entry *ieee80211_proc;
 
 static int show_debug_level(struct seq_file *m, void *v)
 {
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
index 59900bfa1c18..4414c7dd2b02 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
@@ -2166,7 +2166,7 @@ static inline u8 ieee80211_SignalStrengthTranslate(
 	return RetSS;
 }
 
-long ieee80211_translate_todbm(u8 signal_strength_index	)// 0-100 index.
+static long ieee80211_translate_todbm(u8 signal_strength_index)// 0-100 index.
 {
 	long	signal_power; // in dBm.
 
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
index a7bcc64ff226..d5dae74ec67c 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
@@ -303,7 +303,8 @@ ieee80211_classify(struct sk_buff *skb, struct ieee80211_network *network)
 }
 
 #define SN_LESS(a, b)		(((a-b)&0x800)!=0)
-void ieee80211_tx_query_agg_cap(struct ieee80211_device *ieee, struct sk_buff *skb, cb_desc *tcb_desc)
+static void ieee80211_tx_query_agg_cap(struct ieee80211_device *ieee,
+				       struct sk_buff *skb, cb_desc *tcb_desc)
 {
 	PRT_HIGH_THROUGHPUT	pHTInfo = ieee->pHTInfo;
 	PTX_TS_RECORD			pTxTs = NULL;
@@ -412,7 +413,8 @@ ieee80211_query_HTCapShortGI(struct ieee80211_device *ieee, cb_desc *tcb_desc)
 		tcb_desc->bUseShortGI = true;
 }
 
-void ieee80211_query_BandwidthMode(struct ieee80211_device *ieee, cb_desc *tcb_desc)
+static void ieee80211_query_BandwidthMode(struct ieee80211_device *ieee,
+					  cb_desc *tcb_desc)
 {
 	PRT_HIGH_THROUGHPUT	pHTInfo = ieee->pHTInfo;
 
@@ -432,7 +434,9 @@ void ieee80211_query_BandwidthMode(struct ieee80211_device *ieee, cb_desc *tcb_d
 	return;
 }
 
-void ieee80211_query_protectionmode(struct ieee80211_device *ieee, cb_desc *tcb_desc, struct sk_buff *skb)
+static void ieee80211_query_protectionmode(struct ieee80211_device *ieee,
+					   cb_desc *tcb_desc,
+					   struct sk_buff *skb)
 {
 	// Common Settings
 	tcb_desc->bRTSSTBC			= false;
@@ -543,7 +547,8 @@ NO_PROTECTION:
 }
 
 
-void ieee80211_txrate_selectmode(struct ieee80211_device *ieee, cb_desc *tcb_desc)
+static void ieee80211_txrate_selectmode(struct ieee80211_device *ieee,
+					cb_desc *tcb_desc)
 {
 #ifdef TO_DO_LIST
 	if(!IsDataFrame(pFrame))
@@ -573,7 +578,8 @@ void ieee80211_txrate_selectmode(struct ieee80211_device *ieee, cb_desc *tcb_des
 	}
 }
 
-void ieee80211_query_seqnum(struct ieee80211_device *ieee, struct sk_buff *skb, u8 *dst)
+static void ieee80211_query_seqnum(struct ieee80211_device *ieee,
+				   struct sk_buff *skb, u8 *dst)
 {
 	if (is_multicast_ether_addr(dst))
 		return;
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c b/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c
index db0db9347487..3684da340bd4 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c
@@ -251,7 +251,8 @@ static struct sk_buff *ieee80211_DELBA(
  *  output:  none
  *  notice: If any possible, please hide pBA in ieee. And temporarily use Manage Queue as softmac_mgmt_xmit() usually does
 ********************************************************************************************************************/
-void ieee80211_send_ADDBAReq(struct ieee80211_device *ieee, u8 *dst, PBA_RECORD	pBA)
+static void ieee80211_send_ADDBAReq(struct ieee80211_device *ieee,
+				    u8 *dst, PBA_RECORD pBA)
 {
 	struct sk_buff *skb = NULL;
 	skb = ieee80211_ADDBA(ieee, dst, pBA, 0, ACT_ADDBAREQ); //construct ACT_ADDBAREQ frames so set statuscode zero.
@@ -278,7 +279,8 @@ void ieee80211_send_ADDBAReq(struct ieee80211_device *ieee, u8 *dst, PBA_RECORD
  *  output:  none
  *  notice: If any possible, please hide pBA in ieee. And temporarily use Manage Queue as softmac_mgmt_xmit() usually does
 ********************************************************************************************************************/
-void ieee80211_send_ADDBARsp(struct ieee80211_device *ieee, u8 *dst, PBA_RECORD pBA, u16 StatusCode)
+static void ieee80211_send_ADDBARsp(struct ieee80211_device *ieee, u8 *dst,
+				    PBA_RECORD pBA, u16 StatusCode)
 {
 	struct sk_buff *skb = NULL;
 	skb = ieee80211_ADDBA(ieee, dst, pBA, StatusCode, ACT_ADDBARSP); //construct ACT_ADDBARSP frames
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index 42d1f214371b..63a4cdf1dc04 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -392,7 +392,7 @@ int read_nic_word(struct net_device *dev, int indx, u16 *data)
 	return 0;
 }
 
-int read_nic_word_E(struct net_device *dev, int indx, u16 *data)
+static int read_nic_word_E(struct net_device *dev, int indx, u16 *data)
 {
 	int status;
 	struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
@@ -585,7 +585,7 @@ static int proc_get_stats_rx(struct seq_file *m, void *v)
 	return 0;
 }
 
-void rtl8192_proc_module_init(void)
+static void rtl8192_proc_module_init(void)
 {
 	RT_TRACE(COMP_INIT, "Initializing proc filesystem");
 	rtl8192_proc = proc_mkdir(RTL819xU_MODULE_NAME, init_net.proc_net);
@@ -631,7 +631,7 @@ static const struct rtl8192_proc_file rtl8192_proc_files[] = {
 	{ "" }
 };
 
-void rtl8192_proc_init_one(struct net_device *dev)
+static void rtl8192_proc_init_one(struct net_device *dev)
 {
 	const struct rtl8192_proc_file *f;
 	struct proc_dir_entry *dir;
@@ -656,7 +656,7 @@ void rtl8192_proc_init_one(struct net_device *dev)
 	}
 }
 
-void rtl8192_proc_remove_one(struct net_device *dev)
+static void rtl8192_proc_remove_one(struct net_device *dev)
 {
 	remove_proc_subtree(dev->name, rtl8192_proc);
 }
@@ -755,7 +755,7 @@ void rtl8192_set_chan(struct net_device *dev, short ch)
 
 static void rtl8192_rx_isr(struct urb *urb);
 
-u32 get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats *pstats)
+static u32 get_rxpacket_shiftbytes_819xusb(struct ieee80211_rx_stats *pstats)
 {
 
 #ifdef USB_RX_AGGREGATION_SUPPORT
@@ -998,8 +998,8 @@ static void rtl8192_rx_isr(struct urb *urb)
 		netdev_err(dev, "can not submit rxurb, err is %x, URB status is %x\n", err, urb->status);
 }
 
-u32 rtl819xusb_rx_command_packet(struct net_device *dev,
-				 struct ieee80211_rx_stats *pstats)
+static u32 rtl819xusb_rx_command_packet(struct net_device *dev,
+					struct ieee80211_rx_stats *pstats)
 {
 	u32	status;
 
@@ -1629,7 +1629,7 @@ short rtl819xU_tx_cmd(struct net_device *dev, struct sk_buff *skb)
  *
  * \param QUEUEID       Software Queue
 */
-u8 MapHwQueueToFirmwareQueue(u8 QueueID)
+static u8 MapHwQueueToFirmwareQueue(u8 QueueID)
 {
 	u8 QueueSelect = 0x0;       //defualt set to
 
@@ -1716,7 +1716,7 @@ u8 MRateToHwRate8190Pci(u8 rate)
 }
 
 
-u8 QueryIsShort(u8 TxHT, u8 TxRate, cb_desc *tcb_desc)
+static u8 QueryIsShort(u8 TxHT, u8 TxRate, cb_desc *tcb_desc)
 {
 	u8   tmp_Short;
 
@@ -1927,7 +1927,7 @@ short rtl8192_tx(struct net_device *dev, struct sk_buff *skb)
 	}
 }
 
-short rtl8192_usb_initendpoints(struct net_device *dev)
+static short rtl8192_usb_initendpoints(struct net_device *dev)
 {
 	struct r8192_priv *priv = ieee80211_priv(dev);
 
@@ -1985,7 +1985,7 @@ short rtl8192_usb_initendpoints(struct net_device *dev)
 
 }
 #ifdef THOMAS_BEACON
-void rtl8192_usb_deleteendpoints(struct net_device *dev)
+static void rtl8192_usb_deleteendpoints(struct net_device *dev)
 {
 	int i;
 	struct r8192_priv *priv = ieee80211_priv(dev);
@@ -2285,7 +2285,7 @@ void rtl8192_update_ratr_table(struct net_device *dev)
 
 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
-bool GetNmodeSupportBySecCfg8192(struct net_device *dev)
+static bool GetNmodeSupportBySecCfg8192(struct net_device *dev)
 {
 	struct r8192_priv *priv = ieee80211_priv(dev);
 	struct ieee80211_device *ieee = priv->ieee80211;
@@ -3160,7 +3160,7 @@ static struct net_device_stats *rtl8192_stats(struct net_device *dev)
 	return &priv->ieee80211->stats;
 }
 
-bool HalTxCheckStuck819xUsb(struct net_device *dev)
+static bool HalTxCheckStuck819xUsb(struct net_device *dev)
 {
 	struct r8192_priv *priv = ieee80211_priv(dev);
 	u16		RegTxCounter;
@@ -3210,7 +3210,7 @@ RESET_TYPE TxCheckStuck(struct net_device *dev)
 	return RESET_TYPE_NORESET;
 }
 
-bool HalRxCheckStuck819xUsb(struct net_device *dev)
+static bool HalRxCheckStuck819xUsb(struct net_device *dev)
 {
 	u16	RegRxCounter;
 	struct r8192_priv *priv = ieee80211_priv(dev);
@@ -3252,7 +3252,7 @@ bool HalRxCheckStuck819xUsb(struct net_device *dev)
 	return bStuck;
 }
 
-RESET_TYPE RxCheckStuck(struct net_device *dev)
+static RESET_TYPE RxCheckStuck(struct net_device *dev)
 {
 	struct r8192_priv *priv = ieee80211_priv(dev);
 	bool        bRxCheck = FALSE;
@@ -3936,7 +3936,8 @@ u8 HwRateToMRate90(bool bIsHT, u8 rate)
  * Return:
  *               None
  */
-void UpdateRxPktTimeStamp8190(struct net_device *dev, struct ieee80211_rx_stats *stats)
+static void UpdateRxPktTimeStamp8190(struct net_device *dev,
+				     struct ieee80211_rx_stats *stats)
 {
 	struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
 
@@ -4193,7 +4194,7 @@ static u8 rtl819x_evm_dbtopercentage(char value)
 //	We want good-looking for signal strength/quality
 //	2007/7/19 01:09, by cosa.
 //
-long rtl819x_signal_scale_mapping(long currsig)
+static long rtl819x_signal_scale_mapping(long currsig)
 {
 	long retsig;
 
@@ -4462,9 +4463,9 @@ void rtl8192_record_rxdesc_forlateruse(struct ieee80211_rx_stats *psrc_stats,
 }
 
 
-void TranslateRxSignalStuff819xUsb(struct sk_buff *skb,
-				   struct ieee80211_rx_stats *pstats,
-				   rx_drvinfo_819x_usb  *pdrvinfo)
+static void TranslateRxSignalStuff819xUsb(struct sk_buff *skb,
+					  struct ieee80211_rx_stats *pstats,
+					  rx_drvinfo_819x_usb  *pdrvinfo)
 {
 	// TODO: We must only check packet for current MAC address. Not finish
 	rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
@@ -4533,8 +4534,9 @@ void TranslateRxSignalStuff819xUsb(struct sk_buff *skb,
 * Return:
 *		None
 */
-void UpdateReceivedRateHistogramStatistics8190(struct net_device *dev,
-					       struct ieee80211_rx_stats *stats)
+static void
+UpdateReceivedRateHistogramStatistics8190(struct net_device *dev,
+					  struct ieee80211_rx_stats *stats)
 {
 	struct r8192_priv *priv = (struct r8192_priv *)ieee80211_priv(dev);
 	u32 rcvType = 1;   //0: Total, 1:OK, 2:CRC, 3:ICV
@@ -4598,7 +4600,9 @@ void UpdateReceivedRateHistogramStatistics8190(struct net_device *dev,
 }
 
 
-void query_rxdesc_status(struct sk_buff *skb, struct ieee80211_rx_stats *stats, bool bIsRxAggrSubframe)
+static void query_rxdesc_status(struct sk_buff *skb,
+				struct ieee80211_rx_stats *stats,
+				bool bIsRxAggrSubframe)
 {
 	rtl8192_rx_info *info = (struct rtl8192_rx_info *)skb->cb;
 	struct net_device *dev = info->dev;
@@ -4914,7 +4918,8 @@ void rtl819xusb_process_received_packet(struct net_device *dev,
 
 }
 
-void query_rx_cmdpkt_desc_status(struct sk_buff *skb, struct ieee80211_rx_stats *stats)
+static void query_rx_cmdpkt_desc_status(struct sk_buff *skb,
+					struct ieee80211_rx_stats *stats)
 {
 	rx_desc_819x_usb *desc = (rx_desc_819x_usb *)skb->data;
 
-- 
cgit 


From 57a8852912111bd1262db4cbeb2636a8619c8501 Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Wed, 16 Oct 2013 01:59:52 +0300
Subject: Staging: rtl8192u: fix checkpatch.pl error

This patch fixes the checkpatch.pl script error:
ERROR: do not use C99 // comments
+static long ieee80211_translate_todbm(u8 signal_strength_index)// 0-100
index.

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
index 4414c7dd2b02..e730ed64c0fe 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_rx.c
@@ -2166,7 +2166,8 @@ static inline u8 ieee80211_SignalStrengthTranslate(
 	return RetSS;
 }
 
-static long ieee80211_translate_todbm(u8 signal_strength_index)// 0-100 index.
+/* 0-100 index */
+static long ieee80211_translate_todbm(u8 signal_strength_index)
 {
 	long	signal_power; // in dBm.
 
-- 
cgit 


From 4a75ffa8adce46dee5fdd362577ba22778e886e8 Mon Sep 17 00:00:00 2001
From: Archana kumari <archanakumari959@gmail.com>
Date: Wed, 16 Oct 2013 08:08:54 +0530
Subject: staging:dgnc:Fixes use of deprecated headers in dgnc_cls.c

Fixes use of deprecated header <asm/io.h> in staging:dgnc:dgnc_cls.c

Signed-off-by: Archana kumari <archanakumari959@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgnc/dgnc_cls.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/dgnc/dgnc_cls.c b/drivers/staging/dgnc/dgnc_cls.c
index fa1bb633f036..67b927f87fe4 100644
--- a/drivers/staging/dgnc/dgnc_cls.c
+++ b/drivers/staging/dgnc/dgnc_cls.c
@@ -33,7 +33,7 @@
 #include <linux/sched.h>	/* For jiffies, task states */
 #include <linux/interrupt.h>	/* For tasklet and interrupt structs/defines */
 #include <linux/delay.h>	/* For udelay */
-#include <asm/io.h>		/* For read[bwl]/write[bwl] */
+#include <linux/io.h>		/* For read[bwl]/write[bwl] */
 #include <linux/serial.h>	/* For struct async_serial */
 #include <linux/serial_reg.h>	/* For the various UART offsets */
 #include <linux/pci.h>
-- 
cgit 


From 7f59ddada192583aee81ebf0de4cdc5a94642915 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 16 Oct 2013 09:31:17 -0700
Subject: Bluetooth: Socket address parameter for CID is in little endian

The L2CAP socket parameter for CID are actually provided in little
endian. So convert our constants into little endian before comparing
them.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/l2cap_sock.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 95498d553b00..34e5a58ffca8 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -77,7 +77,7 @@ static int l2cap_sock_bind(struct socket *sock, struct sockaddr *addr, int alen)
 		if (la.l2_psm)
 			return -EINVAL;
 		/* We only allow ATT user space socket */
-		if (la.l2_cid != L2CAP_CID_ATT)
+		if (la.l2_cid != __constant_cpu_to_le16(L2CAP_CID_ATT))
 			return -EINVAL;
 	}
 
@@ -170,7 +170,7 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr,
 		if (la.l2_psm)
 			return -EINVAL;
 		/* We only allow ATT user space socket */
-		if (la.l2_cid != L2CAP_CID_ATT)
+		if (la.l2_cid != __constant_cpu_to_le16(L2CAP_CID_ATT))
 			return -EINVAL;
 	}
 
-- 
cgit 


From baf27f6e0e13b9b7e81fd4c758ac87f165c1a422 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Wed, 16 Oct 2013 03:28:55 -0700
Subject: Bluetooth: Expose inquiry_cache debugfs only on BR/EDR controllers

The inquiry_cache debugfs entry is only valid for BR/EDR capable
controllers. In case of single mode LE-only controllers that
entry is not valid.

Move the creating of the debugfs entries to the end of controller
init and only create the inquiry_cache entry if BR/EDR is actually
supported.

At the same time this avoids creating any debugfs entries for
AMP controllers since none of the entries are valid there.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c  | 57 +++++++++++++++++++++++++++++++++++++++++++++--
 net/bluetooth/hci_sysfs.c | 39 --------------------------------
 2 files changed, 55 insertions(+), 41 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 2af0baca6dc1..73c8def0c327 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -27,8 +27,8 @@
 
 #include <linux/export.h>
 #include <linux/idr.h>
-
 #include <linux/rfkill.h>
+#include <linux/debugfs.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
@@ -55,6 +55,44 @@ static void hci_notify(struct hci_dev *hdev, int event)
 	hci_sock_dev_event(hdev, event);
 }
 
+/* ---- HCI debugfs entries ---- */
+
+static int inquiry_cache_show(struct seq_file *f, void *p)
+{
+	struct hci_dev *hdev = f->private;
+	struct discovery_state *cache = &hdev->discovery;
+	struct inquiry_entry *e;
+
+	hci_dev_lock(hdev);
+
+	list_for_each_entry(e, &cache->all, all) {
+		struct inquiry_data *data = &e->data;
+		seq_printf(f, "%pMR %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
+			   &data->bdaddr,
+			   data->pscan_rep_mode, data->pscan_period_mode,
+			   data->pscan_mode, data->dev_class[2],
+			   data->dev_class[1], data->dev_class[0],
+			   __le16_to_cpu(data->clock_offset),
+			   data->rssi, data->ssp_mode, e->timestamp);
+	}
+
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int inquiry_cache_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, inquiry_cache_show, inode->i_private);
+}
+
+static const struct file_operations inquiry_cache_fops = {
+	.open		= inquiry_cache_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 /* ---- HCI requests ---- */
 
 static void hci_req_sync_complete(struct hci_dev *hdev, u8 result)
@@ -734,7 +772,22 @@ static int __hci_init(struct hci_dev *hdev)
 	if (err < 0)
 		return err;
 
-	return __hci_req_sync(hdev, hci_init4_req, 0, HCI_INIT_TIMEOUT);
+	err = __hci_req_sync(hdev, hci_init4_req, 0, HCI_INIT_TIMEOUT);
+	if (err < 0)
+		return err;
+
+	/* Only create debugfs entries during the initial setup
+	 * phase and not every time the controller gets powered on.
+	 */
+	if (!test_bit(HCI_SETUP, &hdev->dev_flags))
+		return 0;
+
+	if (lmp_bredr_capable(hdev)) {
+		debugfs_create_file("inquiry_cache", 0444, hdev->debugfs,
+				    hdev, &inquiry_cache_fops);
+	}
+
+	return 0;
 }
 
 static void hci_scan_req(struct hci_request *req, unsigned long opt)
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index edf623a29043..65ecb9e6fdb7 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -396,42 +396,6 @@ static struct device_type bt_host = {
 	.release = bt_host_release,
 };
 
-static int inquiry_cache_show(struct seq_file *f, void *p)
-{
-	struct hci_dev *hdev = f->private;
-	struct discovery_state *cache = &hdev->discovery;
-	struct inquiry_entry *e;
-
-	hci_dev_lock(hdev);
-
-	list_for_each_entry(e, &cache->all, all) {
-		struct inquiry_data *data = &e->data;
-		seq_printf(f, "%pMR %d %d %d 0x%.2x%.2x%.2x 0x%.4x %d %d %u\n",
-			   &data->bdaddr,
-			   data->pscan_rep_mode, data->pscan_period_mode,
-			   data->pscan_mode, data->dev_class[2],
-			   data->dev_class[1], data->dev_class[0],
-			   __le16_to_cpu(data->clock_offset),
-			   data->rssi, data->ssp_mode, e->timestamp);
-	}
-
-	hci_dev_unlock(hdev);
-
-	return 0;
-}
-
-static int inquiry_cache_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, inquiry_cache_show, inode->i_private);
-}
-
-static const struct file_operations inquiry_cache_fops = {
-	.open		= inquiry_cache_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
 static int blacklist_show(struct seq_file *f, void *p)
 {
 	struct hci_dev *hdev = f->private;
@@ -562,9 +526,6 @@ int hci_add_sysfs(struct hci_dev *hdev)
 	if (!hdev->debugfs)
 		return 0;
 
-	debugfs_create_file("inquiry_cache", 0444, hdev->debugfs,
-			    hdev, &inquiry_cache_fops);
-
 	debugfs_create_file("blacklist", 0444, hdev->debugfs,
 			    hdev, &blacklist_fops);
 
-- 
cgit 


From a7ea1b7249adc8c090a0b277ab5f3737ee4023c1 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 11 Oct 2013 17:23:56 +0530
Subject: ASoC: cs4271: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/cs4271.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/codecs/cs4271.c b/sound/soc/codecs/cs4271.c
index a20f1bb8f071..f6e953454bc0 100644
--- a/sound/soc/codecs/cs4271.c
+++ b/sound/soc/codecs/cs4271.c
@@ -25,6 +25,7 @@
 #include <linux/gpio.h>
 #include <linux/i2c.h>
 #include <linux/spi/spi.h>
+#include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/of_gpio.h>
 #include <sound/pcm.h>
-- 
cgit 


From 193a47162c93afa09fffd04a04443f14d402c606 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 11 Oct 2013 17:23:57 +0530
Subject: ASoC: pcm1681: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/pcm1681.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/codecs/pcm1681.c b/sound/soc/codecs/pcm1681.c
index 651ce0923675..54ea15b87bfc 100644
--- a/sound/soc/codecs/pcm1681.c
+++ b/sound/soc/codecs/pcm1681.c
@@ -21,6 +21,7 @@
 #include <linux/gpio.h>
 #include <linux/i2c.h>
 #include <linux/regmap.h>
+#include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/of_gpio.h>
 #include <sound/pcm.h>
-- 
cgit 


From 4b2fa5121c758db6fe9ed4931b54e390661395de Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 11 Oct 2013 17:23:58 +0530
Subject: ASoC: pcm1792a: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/pcm1792a.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/codecs/pcm1792a.c b/sound/soc/codecs/pcm1792a.c
index 2a8eccf64c76..6f14c50a7f0f 100644
--- a/sound/soc/codecs/pcm1792a.c
+++ b/sound/soc/codecs/pcm1792a.c
@@ -28,6 +28,7 @@
 #include <sound/initval.h>
 #include <sound/soc.h>
 #include <sound/tlv.h>
+#include <linux/of.h>
 #include <linux/of_device.h>
 
 #include "pcm1792a.h"
-- 
cgit 


From 285d00c11b0a8d0ef63c176f88caab5071c9e80d Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 11 Oct 2013 17:23:59 +0530
Subject: ASoC: tas5086: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/tas5086.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/codecs/tas5086.c b/sound/soc/codecs/tas5086.c
index 2996d2ea026b..fe4d29d88564 100644
--- a/sound/soc/codecs/tas5086.c
+++ b/sound/soc/codecs/tas5086.c
@@ -37,6 +37,7 @@
 #include <linux/i2c.h>
 #include <linux/regmap.h>
 #include <linux/spi/spi.h>
+#include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/of_gpio.h>
 #include <sound/pcm.h>
-- 
cgit 


From b3b70786ec18ef3088b55b76258bbd48d75aee08 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 11 Oct 2013 17:24:00 +0530
Subject: ASoC: tlv320aic3x: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/tlv320aic3x.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c
index 892c108ca67a..f8b9fa6b6f0a 100644
--- a/sound/soc/codecs/tlv320aic3x.c
+++ b/sound/soc/codecs/tlv320aic3x.c
@@ -40,6 +40,7 @@
 #include <linux/i2c.h>
 #include <linux/gpio.h>
 #include <linux/regulator/consumer.h>
+#include <linux/of.h>
 #include <linux/of_gpio.h>
 #include <linux/slab.h>
 #include <sound/core.h>
-- 
cgit 


From 8aa99652cd52af07f4fa49fc50d78ede48c9c9b3 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 11 Oct 2013 17:24:01 +0530
Subject: ASoC: atmel: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/atmel/sam9g20_wm8731.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/atmel/sam9g20_wm8731.c b/sound/soc/atmel/sam9g20_wm8731.c
index 802717eccbd0..f15bff1548f8 100644
--- a/sound/soc/atmel/sam9g20_wm8731.c
+++ b/sound/soc/atmel/sam9g20_wm8731.c
@@ -37,6 +37,7 @@
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/i2c.h>
+#include <linux/of.h>
 
 #include <linux/atmel-ssc.h>
 
-- 
cgit 


From ecc77773d3b5344394d0a126ab06fe51dac419b8 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 11 Oct 2013 17:21:53 +0530
Subject: spi: gpio: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-gpio.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/spi/spi-gpio.c b/drivers/spi/spi-gpio.c
index 68b69fec13a9..22ef6e1f9e9d 100644
--- a/drivers/spi/spi-gpio.c
+++ b/drivers/spi/spi-gpio.c
@@ -22,6 +22,7 @@
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
+#include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/of_gpio.h>
 
-- 
cgit 


From a1829d2b76ae70e8f15fcf60aba5b703d46d66d9 Mon Sep 17 00:00:00 2001
From: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Date: Fri, 11 Oct 2013 13:53:59 +0300
Subject: spi: Add missing newline to dev_ prints in drivers

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-bfin-sport.c  | 2 +-
 drivers/spi/spi-bfin5xx.c     | 4 ++--
 drivers/spi/spi-ep93xx.c      | 4 ++--
 drivers/spi/spi-fsl-cpm.c     | 2 +-
 drivers/spi/spi-omap2-mcspi.c | 4 ++--
 5 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/spi/spi-bfin-sport.c b/drivers/spi/spi-bfin-sport.c
index 91921b5f5817..7b2cda0747d5 100644
--- a/drivers/spi/spi-bfin-sport.c
+++ b/drivers/spi/spi-bfin-sport.c
@@ -592,7 +592,7 @@ bfin_sport_spi_setup(struct spi_device *spi)
 			 */
 			if (chip_info->ctl_reg || chip_info->enable_dma) {
 				ret = -EINVAL;
-				dev_err(&spi->dev, "don't set ctl_reg/enable_dma fields");
+				dev_err(&spi->dev, "don't set ctl_reg/enable_dma fields\n");
 				goto error;
 			}
 			chip->cs_chg_udelay = chip_info->cs_chg_udelay;
diff --git a/drivers/spi/spi-bfin5xx.c b/drivers/spi/spi-bfin5xx.c
index 45bdf73d6868..18b892e7455a 100644
--- a/drivers/spi/spi-bfin5xx.c
+++ b/drivers/spi/spi-bfin5xx.c
@@ -524,7 +524,7 @@ static irqreturn_t bfin_spi_dma_irq_handler(int irq, void *dev_id)
 	timeout = jiffies + HZ;
 	while (!(bfin_read(&drv_data->regs->stat) & BIT_STAT_SPIF))
 		if (!time_before(jiffies, timeout)) {
-			dev_warn(&drv_data->pdev->dev, "timeout waiting for SPIF");
+			dev_warn(&drv_data->pdev->dev, "timeout waiting for SPIF\n");
 			break;
 		} else
 			cpu_relax();
@@ -1052,7 +1052,7 @@ static int bfin_spi_setup(struct spi_device *spi)
 		if (!(spi->mode & SPI_CPHA))
 			dev_warn(&spi->dev, "Warning: SPI CPHA not set:"
 				" Slave Select not under software control!\n"
-				" See Documentation/blackfin/bfin-spi-notes.txt");
+				" See Documentation/blackfin/bfin-spi-notes.txt\n");
 
 		chip->flag = (1 << spi->chip_select) << 8;
 	} else
diff --git a/drivers/spi/spi-ep93xx.c b/drivers/spi/spi-ep93xx.c
index d22c00a227b6..b57a341d3e1c 100644
--- a/drivers/spi/spi-ep93xx.c
+++ b/drivers/spi/spi-ep93xx.c
@@ -330,7 +330,7 @@ static int ep93xx_spi_chip_setup(const struct ep93xx_spi *espi,
 
 	dev_dbg(&espi->pdev->dev, "setup: mode %d, cpsr %d, scr %d, dss %d\n",
 		chip->spi->mode, div_cpsr, div_scr, dss);
-	dev_dbg(&espi->pdev->dev, "setup: cr0 %#x", cr0);
+	dev_dbg(&espi->pdev->dev, "setup: cr0 %#x\n", cr0);
 
 	ep93xx_spi_write_u8(espi, SSPCPSR, div_cpsr);
 	ep93xx_spi_write_u16(espi, SSPCR0, cr0);
@@ -509,7 +509,7 @@ ep93xx_spi_dma_prepare(struct ep93xx_spi *espi, enum dma_transfer_direction dir)
 	}
 
 	if (WARN_ON(len)) {
-		dev_warn(&espi->pdev->dev, "len = %zu expected 0!", len);
+		dev_warn(&espi->pdev->dev, "len = %zu expected 0!\n", len);
 		return ERR_PTR(-EINVAL);
 	}
 
diff --git a/drivers/spi/spi-fsl-cpm.c b/drivers/spi/spi-fsl-cpm.c
index 07971e3fe58b..58630edb8c21 100644
--- a/drivers/spi/spi-fsl-cpm.c
+++ b/drivers/spi/spi-fsl-cpm.c
@@ -299,7 +299,7 @@ int fsl_spi_cpm_init(struct mpc8xxx_spi *mspi)
 
 		switch (mspi->subblock) {
 		default:
-			dev_warn(dev, "cell-index unspecified, assuming SPI1");
+			dev_warn(dev, "cell-index unspecified, assuming SPI1\n");
 			/* fall through */
 		case 0:
 			mspi->subblock = QE_CR_SUBBLOCK_SPI1;
diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c
index ed4af4708d9a..15d32042a7db 100644
--- a/drivers/spi/spi-omap2-mcspi.c
+++ b/drivers/spi/spi-omap2-mcspi.c
@@ -498,7 +498,7 @@ omap2_mcspi_rx_dma(struct spi_device *spi, struct spi_transfer *xfer,
 				((u32 *)xfer->rx_buf)[elements++] = w;
 		} else {
 			int bytes_per_word = mcspi_bytes_per_word(word_len);
-			dev_err(&spi->dev, "DMA RX penultimate word empty");
+			dev_err(&spi->dev, "DMA RX penultimate word empty\n");
 			count -= (bytes_per_word << 1);
 			omap2_mcspi_set_enable(spi, 1);
 			return count;
@@ -516,7 +516,7 @@ omap2_mcspi_rx_dma(struct spi_device *spi, struct spi_transfer *xfer,
 		else /* word_len <= 32 */
 			((u32 *)xfer->rx_buf)[elements] = w;
 	} else {
-		dev_err(&spi->dev, "DMA RX last word empty");
+		dev_err(&spi->dev, "DMA RX last word empty\n");
 		count -= mcspi_bytes_per_word(word_len);
 	}
 	omap2_mcspi_set_enable(spi, 1);
-- 
cgit 


From f6bd03a746271f298aa5bfb6e049b245757efaed Mon Sep 17 00:00:00 2001
From: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Date: Fri, 11 Oct 2013 13:54:00 +0300
Subject: spi: Don't break user-visible strings to multiple source lines in
 drivers

User-visible strings are more difficult to grep from sources if they are
separated to multiple source lines. This is worse than over 80 columns long
line code style violation.

Fix this by making those to single-line strings or by breaking them between
variables.

While at there, convert if (printk_ratelimit()) dev_warn() to use
dev_warn_ratelimited in spi-pxa2xx.c.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-atmel.c        |  4 ++--
 drivers/spi/spi-bfin5xx.c      | 19 ++++++++++---------
 drivers/spi/spi-dw.c           |  4 ++--
 drivers/spi/spi-fsl-espi.c     |  4 ++--
 drivers/spi/spi-mpc52xx-psc.c  |  4 ++--
 drivers/spi/spi-pxa2xx.c       | 36 ++++++++++++++++--------------------
 drivers/spi/spi-topcliff-pch.c | 13 +++++++------
 7 files changed, 41 insertions(+), 43 deletions(-)

diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index d4ac60b4a56e..fb61f59661d1 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -1401,8 +1401,8 @@ static int atmel_spi_transfer(struct spi_device *spi, struct spi_message *msg)
 			asd = spi->controller_state;
 			bits = (asd->csr >> 4) & 0xf;
 			if (bits != xfer->bits_per_word - 8) {
-				dev_dbg(&spi->dev, "you can't yet change "
-					 "bits_per_word in transfers\n");
+				dev_dbg(&spi->dev,
+					"you can't yet change bits_per_word in transfers\n");
 				return -ENOPROTOOPT;
 			}
 		}
diff --git a/drivers/spi/spi-bfin5xx.c b/drivers/spi/spi-bfin5xx.c
index 18b892e7455a..b70a2bd9324d 100644
--- a/drivers/spi/spi-bfin5xx.c
+++ b/drivers/spi/spi-bfin5xx.c
@@ -913,8 +913,9 @@ static void bfin_spi_pump_messages(struct work_struct *work)
 	drv_data->cur_transfer = list_entry(drv_data->cur_msg->transfers.next,
 					    struct spi_transfer, transfer_list);
 
-	dev_dbg(&drv_data->pdev->dev, "got a message to pump, "
-		"state is set to: baud %d, flag 0x%x, ctl 0x%x\n",
+	dev_dbg(&drv_data->pdev->dev,
+		"got a message to pump, state is set to: baud "
+		"%d, flag 0x%x, ctl 0x%x\n",
 		drv_data->cur_chip->baud, drv_data->cur_chip->flag,
 		drv_data->cur_chip->ctl_reg);
 
@@ -1013,8 +1014,8 @@ static int bfin_spi_setup(struct spi_device *spi)
 		 * but let's assume (for now) they do.
 		 */
 		if (chip_info->ctl_reg & ~bfin_ctl_reg) {
-			dev_err(&spi->dev, "do not set bits in ctl_reg "
-				"that the SPI framework manages\n");
+			dev_err(&spi->dev,
+				"do not set bits in ctl_reg that the SPI framework manages\n");
 			goto error;
 		}
 		chip->enable_dma = chip_info->enable_dma != 0
@@ -1050,17 +1051,17 @@ static int bfin_spi_setup(struct spi_device *spi)
 	chip->chip_select_num = spi->chip_select;
 	if (chip->chip_select_num < MAX_CTRL_CS) {
 		if (!(spi->mode & SPI_CPHA))
-			dev_warn(&spi->dev, "Warning: SPI CPHA not set:"
-				" Slave Select not under software control!\n"
-				" See Documentation/blackfin/bfin-spi-notes.txt\n");
+			dev_warn(&spi->dev,
+				"Warning: SPI CPHA not set: Slave Select not under software control!\n"
+				"See Documentation/blackfin/bfin-spi-notes.txt\n");
 
 		chip->flag = (1 << spi->chip_select) << 8;
 	} else
 		chip->cs_gpio = chip->chip_select_num - MAX_CTRL_CS;
 
 	if (chip->enable_dma && chip->pio_interrupt) {
-		dev_err(&spi->dev, "enable_dma is set, "
-				"do not set pio_interrupt\n");
+		dev_err(&spi->dev,
+			"enable_dma is set, do not set pio_interrupt\n");
 		goto error;
 	}
 	/*
diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c
index 79c958e49f61..b897c4adb39d 100644
--- a/drivers/spi/spi-dw.c
+++ b/drivers/spi/spi-dw.c
@@ -870,8 +870,8 @@ void dw_spi_remove_host(struct dw_spi *dws)
 	/* Remove the queue */
 	status = destroy_queue(dws);
 	if (status != 0)
-		dev_err(&dws->master->dev, "dw_spi_remove: workqueue will not "
-			"complete, message memory not freed\n");
+		dev_err(&dws->master->dev,
+			"dw_spi_remove: workqueue will not complete, message memory not freed\n");
 
 	if (dws->dma_ops && dws->dma_ops->dma_exit)
 		dws->dma_ops->dma_exit(dws);
diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c
index b8f1103fe28e..43222d7532d1 100644
--- a/drivers/spi/spi-fsl-espi.c
+++ b/drivers/spi/spi-fsl-espi.c
@@ -289,8 +289,8 @@ static void fsl_espi_do_trans(struct spi_message *m,
 		if ((first->bits_per_word != t->bits_per_word) ||
 			(first->speed_hz != t->speed_hz)) {
 			espi_trans->status = -EINVAL;
-			dev_err(mspi->dev, "bits_per_word/speed_hz should be"
-					" same for the same SPI transfer\n");
+			dev_err(mspi->dev,
+				"bits_per_word/speed_hz should be same for the same SPI transfer\n");
 			return;
 		}
 
diff --git a/drivers/spi/spi-mpc52xx-psc.c b/drivers/spi/spi-mpc52xx-psc.c
index 6e925dc34396..00ba910ab302 100644
--- a/drivers/spi/spi-mpc52xx-psc.c
+++ b/drivers/spi/spi-mpc52xx-psc.c
@@ -383,8 +383,8 @@ static int mpc52xx_psc_spi_do_probe(struct device *dev, u32 regaddr,
 
 	mps->irq = irq;
 	if (pdata == NULL) {
-		dev_warn(dev, "probe called without platform data, no "
-				"cs_control function will be called\n");
+		dev_warn(dev,
+			 "probe called without platform data, no cs_control function will be called\n");
 		mps->cs_control = NULL;
 		mps->sysclk = 0;
 		master->bus_num = bus_num;
diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index c1a50674c1e3..64e1682c39b1 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -573,8 +573,8 @@ static irqreturn_t ssp_int(int irq, void *dev_id)
 			write_SSTO(0, reg);
 		write_SSSR_CS(drv_data, drv_data->clear_sr);
 
-		dev_err(&drv_data->pdev->dev, "bad message state "
-			"in interrupt handler\n");
+		dev_err(&drv_data->pdev->dev,
+			"bad message state in interrupt handler\n");
 
 		/* Never fail */
 		return IRQ_HANDLED;
@@ -651,8 +651,8 @@ static void pump_transfers(unsigned long data)
 		if (message->is_dma_mapped
 				|| transfer->rx_dma || transfer->tx_dma) {
 			dev_err(&drv_data->pdev->dev,
-				"pump_transfers: mapped transfer length "
-				"of %u is greater than %d\n",
+				"pump_transfers: mapped transfer length of "
+				"%u is greater than %d\n",
 				transfer->len, MAX_DMA_LEN);
 			message->status = -EINVAL;
 			giveback(drv_data);
@@ -660,11 +660,10 @@ static void pump_transfers(unsigned long data)
 		}
 
 		/* warn ... we force this to PIO mode */
-		if (printk_ratelimit())
-			dev_warn(&message->spi->dev, "pump_transfers: "
-				"DMA disabled for transfer length %ld "
-				"greater than %d\n",
-				(long)drv_data->len, MAX_DMA_LEN);
+		dev_warn_ratelimited(&message->spi->dev,
+				     "pump_transfers: DMA disabled for transfer length %ld "
+				     "greater than %d\n",
+				     (long)drv_data->len, MAX_DMA_LEN);
 	}
 
 	/* Setup the transfer state based on the type of transfer */
@@ -726,11 +725,8 @@ static void pump_transfers(unsigned long data)
 							message->spi,
 							bits, &dma_burst,
 							&dma_thresh))
-				if (printk_ratelimit())
-					dev_warn(&message->spi->dev,
-						"pump_transfers: "
-						"DMA burst size reduced to "
-						"match bits_per_word\n");
+				dev_warn_ratelimited(&message->spi->dev,
+						     "pump_transfers: DMA burst size reduced to match bits_per_word\n");
 		}
 
 		cr0 = clk_div
@@ -854,8 +850,8 @@ static int setup_cs(struct spi_device *spi, struct chip_data *chip,
 	if (gpio_is_valid(chip_info->gpio_cs)) {
 		err = gpio_request(chip_info->gpio_cs, "SPI_CS");
 		if (err) {
-			dev_err(&spi->dev, "failed to request chip select "
-					"GPIO%d\n", chip_info->gpio_cs);
+			dev_err(&spi->dev, "failed to request chip select GPIO%d\n",
+				chip_info->gpio_cs);
 			return err;
 		}
 
@@ -899,8 +895,8 @@ static int setup(struct spi_device *spi)
 
 		if (drv_data->ssp_type == CE4100_SSP) {
 			if (spi->chip_select > 4) {
-				dev_err(&spi->dev, "failed setup: "
-				"cs number must not be > 4.\n");
+				dev_err(&spi->dev,
+					"failed setup: cs number must not be > 4.\n");
 				kfree(chip);
 				return -EINVAL;
 			}
@@ -956,8 +952,8 @@ static int setup(struct spi_device *spi)
 						spi->bits_per_word,
 						&chip->dma_burst_size,
 						&chip->dma_threshold)) {
-			dev_warn(&spi->dev, "in setup: DMA burst size reduced "
-					"to match bits_per_word\n");
+			dev_warn(&spi->dev,
+				 "in setup: DMA burst size reduced to match bits_per_word\n");
 		}
 	}
 
diff --git a/drivers/spi/spi-topcliff-pch.c b/drivers/spi/spi-topcliff-pch.c
index eaeeed51bbbf..14843efaaf3a 100644
--- a/drivers/spi/spi-topcliff-pch.c
+++ b/drivers/spi/spi-topcliff-pch.c
@@ -506,8 +506,8 @@ static int pch_spi_transfer(struct spi_device *pspi, struct spi_message *pmsg)
 		goto err_out;
 	}
 
-	dev_dbg(&pspi->dev, "%s Transfer List not empty. "
-		"Transfer Speed is set.\n", __func__);
+	dev_dbg(&pspi->dev,
+		"%s Transfer List not empty. Transfer Speed is set.\n", __func__);
 
 	spin_lock_irqsave(&data->lock, flags);
 	/* validate Tx/Rx buffers and Transfer length */
@@ -526,8 +526,9 @@ static int pch_spi_transfer(struct spi_device *pspi, struct spi_message *pmsg)
 			goto err_return_spinlock;
 		}
 
-		dev_dbg(&pspi->dev, "%s Tx/Rx buffer valid. Transfer length"
-			" valid\n", __func__);
+		dev_dbg(&pspi->dev,
+			"%s Tx/Rx buffer valid. Transfer length valid\n",
+			__func__);
 
 		/* if baud rate has been specified validate the same */
 		if (transfer->speed_hz > PCH_MAX_BAUDRATE)
@@ -1181,8 +1182,8 @@ static void pch_spi_process_messages(struct work_struct *pwork)
 	spin_lock(&data->lock);
 	/* check if suspend has been initiated;if yes flush queue */
 	if (data->board_dat->suspend_sts || (data->status == STATUS_EXITING)) {
-		dev_dbg(&data->master->dev, "%s suspend/remove initiated,"
-			"flushing queue\n", __func__);
+		dev_dbg(&data->master->dev,
+			"%s suspend/remove initiated, flushing queue\n", __func__);
 		list_for_each_entry_safe(pmsg, tmp, data->queue.next, queue) {
 			pmsg->status = -EIO;
 
-- 
cgit 


From 8e050996c85f2df135e54053ce74f47577382366 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 14 Oct 2013 17:49:00 +0100
Subject: iio: Update buffer's bytes per datum after updating the scan mask

Currently a IIO device driver needs to make sure to update the buffer's bytes
per datum after the scan mask has changed. This is usually done in the preenable
callback by invoking iio_sw_buffer_preenable(). This is something that needs to
be done and is done for virtually all devices which support buffers (we
currently have only one exception). Also this a bit of a layering violation
since we have to call the buffer setup ops from the device setup ops. This
requires the device driver to know about the internal requirements of the buffer
(e.g. whether we need to call the set_bytes_per_datum) callback. And especially
with in-kernel buffer consumers, which allows to attach arbitrary buffers to a
device, this is something that the driver can't know.

Moving this to the core allows us to drop the individual calls to
iio_sw_buffer_preenable() from drivers.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Denis Ciocca <denis.ciocca@st.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Cc: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/industrialio-buffer.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 796376ac2475..186f501e6415 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -492,6 +492,20 @@ void iio_disable_all_buffers(struct iio_dev *indio_dev)
 		indio_dev->setup_ops->postdisable(indio_dev);
 }
 
+static void iio_buffer_update_bytes_per_datum(struct iio_dev *indio_dev,
+	struct iio_buffer *buffer)
+{
+	unsigned int bytes;
+
+	if (!buffer->access->set_bytes_per_datum)
+		return;
+
+	bytes = iio_compute_scan_bytes(indio_dev, buffer->scan_mask,
+		buffer->scan_timestamp);
+
+	buffer->access->set_bytes_per_datum(buffer, bytes);
+}
+
 static int __iio_update_buffers(struct iio_dev *indio_dev,
 		       struct iio_buffer *insert_buffer,
 		       struct iio_buffer *remove_buffer)
@@ -589,7 +603,8 @@ static int __iio_update_buffers(struct iio_dev *indio_dev,
 		iio_compute_scan_bytes(indio_dev,
 				       indio_dev->active_scan_mask,
 				       indio_dev->scan_timestamp);
-	list_for_each_entry(buffer, &indio_dev->buffer_list, buffer_list)
+	list_for_each_entry(buffer, &indio_dev->buffer_list, buffer_list) {
+		iio_buffer_update_bytes_per_datum(indio_dev, buffer);
 		if (buffer->access->request_update) {
 			ret = buffer->access->request_update(buffer);
 			if (ret) {
@@ -598,6 +613,7 @@ static int __iio_update_buffers(struct iio_dev *indio_dev,
 				goto error_run_postdisable;
 			}
 		}
+	}
 	if (indio_dev->info->update_scan_mode) {
 		ret = indio_dev->info
 			->update_scan_mode(indio_dev,
-- 
cgit 


From d0894cab0f70e53c0b8d24680452a801497b2a4f Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 14 Oct 2013 17:49:00 +0100
Subject: iio:st_accel: Drop redundant call to iio_sw_buffer_preenable()

The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core,
so there is no need to do this from the driver anymore.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/accel/st_accel_buffer.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/iio/accel/st_accel_buffer.c b/drivers/iio/accel/st_accel_buffer.c
index d9b350756f90..a1e642ee13d6 100644
--- a/drivers/iio/accel/st_accel_buffer.c
+++ b/drivers/iio/accel/st_accel_buffer.c
@@ -32,16 +32,7 @@ int st_accel_trig_set_state(struct iio_trigger *trig, bool state)
 
 static int st_accel_buffer_preenable(struct iio_dev *indio_dev)
 {
-	int err;
-
-	err = st_sensors_set_enable(indio_dev, true);
-	if (err < 0)
-		goto st_accel_set_enable_error;
-
-	err = iio_sw_buffer_preenable(indio_dev);
-
-st_accel_set_enable_error:
-	return err;
+	return st_sensors_set_enable(indio_dev, true);
 }
 
 static int st_accel_buffer_postenable(struct iio_dev *indio_dev)
-- 
cgit 


From 06e1b542bb06a84bb536d9865c6547422cc240b5 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 14 Oct 2013 17:49:00 +0100
Subject: iio:ad7266: Remove redundant call to iio_sw_preenable()

The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core,
so there is no need to do this from the driver anymore.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ad7266.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/iio/adc/ad7266.c b/drivers/iio/adc/ad7266.c
index f5723cbd2032..58e945594c7b 100644
--- a/drivers/iio/adc/ad7266.c
+++ b/drivers/iio/adc/ad7266.c
@@ -61,17 +61,7 @@ static int ad7266_powerdown(struct ad7266_state *st)
 static int ad7266_preenable(struct iio_dev *indio_dev)
 {
 	struct ad7266_state *st = iio_priv(indio_dev);
-	int ret;
-
-	ret = ad7266_wakeup(st);
-	if (ret)
-		return ret;
-
-	ret = iio_sw_buffer_preenable(indio_dev);
-	if (ret)
-		ad7266_powerdown(st);
-
-	return ret;
+	return ad7266_wakeup(st);
 }
 
 static int ad7266_postdisable(struct iio_dev *indio_dev)
-- 
cgit 


From 41288e0f6215e13eac4f94186379977907850047 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 14 Oct 2013 17:49:00 +0100
Subject: iio:ad7887: Remove redundant call to iio_sw_buffer_preenable().

The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core,
so there is no need to do this from the driver anymore.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ad7887.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/iio/adc/ad7887.c b/drivers/iio/adc/ad7887.c
index faedd0e165f6..acb7f90359a3 100644
--- a/drivers/iio/adc/ad7887.c
+++ b/drivers/iio/adc/ad7887.c
@@ -78,11 +78,6 @@ enum ad7887_supported_device_ids {
 static int ad7887_ring_preenable(struct iio_dev *indio_dev)
 {
 	struct ad7887_state *st = iio_priv(indio_dev);
-	int ret;
-
-	ret = iio_sw_buffer_preenable(indio_dev);
-	if (ret < 0)
-		return ret;
 
 	/* We know this is a single long so can 'cheat' */
 	switch (*indio_dev->active_scan_mask) {
-- 
cgit 


From eddcee851ad9e988e6842eb58a6137a6bb8490b2 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 14 Oct 2013 17:49:00 +0100
Subject: iio:ad_sigma_delta: Remove redundant call to
 iio_sw_buffer_preenable().

The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core,
so there is no need to do this from the driver anymore.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ad_sigma_delta.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c
index 2b5911274763..e6fbd3e70981 100644
--- a/drivers/iio/adc/ad_sigma_delta.c
+++ b/drivers/iio/adc/ad_sigma_delta.c
@@ -397,7 +397,6 @@ static irqreturn_t ad_sd_trigger_handler(int irq, void *p)
 }
 
 static const struct iio_buffer_setup_ops ad_sd_buffer_setup_ops = {
-	.preenable = &iio_sw_buffer_preenable,
 	.postenable = &ad_sd_buffer_postenable,
 	.predisable = &iio_triggered_buffer_predisable,
 	.postdisable = &ad_sd_buffer_postdisable,
-- 
cgit 


From 24adaf7958847e0950b197ac05cced2ea9e0b4e7 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 14 Oct 2013 17:49:00 +0100
Subject: iio:ti_am335x: Remove redundant call to iio_sw_buffer_preenable()

The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer
core, so there is no need to do this from the driver anymore.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Zubair Lutfullah <zubair.lutfullah@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ti_am335x_adc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index 8fb5429e39ae..ef54d8a588d2 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -166,7 +166,7 @@ static int tiadc_buffer_preenable(struct iio_dev *indio_dev)
 	for (i = 0; i < fifo1count; i++)
 		read = tiadc_readl(adc_dev, REG_FIFO1);
 
-	return iio_sw_buffer_preenable(indio_dev);
+	return 0;
 }
 
 static int tiadc_buffer_postenable(struct iio_dev *indio_dev)
-- 
cgit 


From d4b2911b1ff4bece34fd662b9e056ac97c36b193 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 14 Oct 2013 17:49:00 +0100
Subject: iio:st_gyro: Remove redundant call to iio_sw_buffer_preenable().

The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core,
so there is no need to do this from the driver anymore.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/gyro/st_gyro_buffer.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/iio/gyro/st_gyro_buffer.c b/drivers/iio/gyro/st_gyro_buffer.c
index 69017c7ec302..d67b17b6a7aa 100644
--- a/drivers/iio/gyro/st_gyro_buffer.c
+++ b/drivers/iio/gyro/st_gyro_buffer.c
@@ -32,16 +32,7 @@ int st_gyro_trig_set_state(struct iio_trigger *trig, bool state)
 
 static int st_gyro_buffer_preenable(struct iio_dev *indio_dev)
 {
-	int err;
-
-	err = st_sensors_set_enable(indio_dev, true);
-	if (err < 0)
-		goto st_gyro_set_enable_error;
-
-	err = iio_sw_buffer_preenable(indio_dev);
-
-st_gyro_set_enable_error:
-	return err;
+	return st_sensors_set_enable(indio_dev, true);
 }
 
 static int st_gyro_buffer_postenable(struct iio_dev *indio_dev)
-- 
cgit 


From c80b8ea9b4ef11fa99e7c3bfa90836971ec1e291 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 14 Oct 2013 17:49:00 +0100
Subject: iio:triggered-buffer: Remove redundant call to
 iio_sw_buffer_preenable().

The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core,
so there is no need to do this from the driver anymore.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/industrialio-triggered-buffer.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/iio/industrialio-triggered-buffer.c b/drivers/iio/industrialio-triggered-buffer.c
index c1cb1f94fe2e..d6f54930b34a 100644
--- a/drivers/iio/industrialio-triggered-buffer.c
+++ b/drivers/iio/industrialio-triggered-buffer.c
@@ -17,7 +17,6 @@
 #include <linux/iio/trigger_consumer.h>
 
 static const struct iio_buffer_setup_ops iio_triggered_buffer_setup_ops = {
-	.preenable = &iio_sw_buffer_preenable,
 	.postenable = &iio_triggered_buffer_postenable,
 	.predisable = &iio_triggered_buffer_predisable,
 };
-- 
cgit 


From bbc1751d2417ccd126fc5215621c58c7467d8eed Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 14 Oct 2013 17:49:00 +0100
Subject: iio:st_magn: Remove redundant call to iio_sw_buffer_preenable().

The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core,
so there is no need to do this from the driver anymore.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/magnetometer/st_magn_buffer.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/iio/magnetometer/st_magn_buffer.c b/drivers/iio/magnetometer/st_magn_buffer.c
index 708857bdb47d..bf427dc0d226 100644
--- a/drivers/iio/magnetometer/st_magn_buffer.c
+++ b/drivers/iio/magnetometer/st_magn_buffer.c
@@ -25,16 +25,7 @@
 
 static int st_magn_buffer_preenable(struct iio_dev *indio_dev)
 {
-	int err;
-
-	err = st_sensors_set_enable(indio_dev, true);
-	if (err < 0)
-		goto st_magn_set_enable_error;
-
-	err = iio_sw_buffer_preenable(indio_dev);
-
-st_magn_set_enable_error:
-	return err;
+	return st_sensors_set_enable(indio_dev, true);
 }
 
 static int st_magn_buffer_postenable(struct iio_dev *indio_dev)
-- 
cgit 


From 6c0743ed99bf3e13b80574629131465a10b12879 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 14 Oct 2013 17:49:00 +0100
Subject: iio:st_pressure: Remove redundant call to iio_sw_buffer_preenable().

The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core,
so there is no need to do this from the driver anymore.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/pressure/st_pressure_buffer.c | 11 +----------
 1 file changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/iio/pressure/st_pressure_buffer.c b/drivers/iio/pressure/st_pressure_buffer.c
index f877ef8af520..b37b1c9ac932 100644
--- a/drivers/iio/pressure/st_pressure_buffer.c
+++ b/drivers/iio/pressure/st_pressure_buffer.c
@@ -32,16 +32,7 @@ int st_press_trig_set_state(struct iio_trigger *trig, bool state)
 
 static int st_press_buffer_preenable(struct iio_dev *indio_dev)
 {
-	int err;
-
-	err = st_sensors_set_enable(indio_dev, true);
-	if (err < 0)
-		goto st_press_set_enable_error;
-
-	err = iio_sw_buffer_preenable(indio_dev);
-
-st_press_set_enable_error:
-	return err;
+	return st_sensors_set_enable(indio_dev, true);
 }
 
 static int st_press_buffer_postenable(struct iio_dev *indio_dev)
-- 
cgit 


From 1e61fb7b19df136dc9124b85da9a7bc0ec6cc351 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 14 Oct 2013 17:49:00 +0100
Subject: iio:gp2ap020a00f: Remove redundant call to iio_sw_buffer_preenable()

The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core,
so there is no need to do this from the driver anymore.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Jacek Anaszewski <j.anaszewski@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/light/gp2ap020a00f.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/iio/light/gp2ap020a00f.c b/drivers/iio/light/gp2ap020a00f.c
index 2a65bc34face..a530e7712a8e 100644
--- a/drivers/iio/light/gp2ap020a00f.c
+++ b/drivers/iio/light/gp2ap020a00f.c
@@ -1483,7 +1483,6 @@ error_unlock:
 }
 
 static const struct iio_buffer_setup_ops gp2ap020a00f_buffer_setup_ops = {
-	.preenable = &iio_sw_buffer_preenable,
 	.postenable = &gp2ap020a00f_buffer_postenable,
 	.predisable = &gp2ap020a00f_buffer_predisable,
 };
-- 
cgit 


From 77e587f67616219f7f94109afed4bf5bd2d01ad2 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 14 Oct 2013 17:49:00 +0100
Subject: staging:iio:lis3l02dq: Remove redundant call to
 iio_sw_buffer_preenable().

The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core,
so there is no need to do this from the driver anymore.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/accel/lis3l02dq_ring.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c
index 2d559ba353d2..79cefe0a516a 100644
--- a/drivers/staging/iio/accel/lis3l02dq_ring.c
+++ b/drivers/staging/iio/accel/lis3l02dq_ring.c
@@ -382,7 +382,6 @@ error_ret:
 }
 
 static const struct iio_buffer_setup_ops lis3l02dq_buffer_setup_ops = {
-	.preenable = &iio_sw_buffer_preenable,
 	.postenable = &lis3l02dq_buffer_postenable,
 	.predisable = &lis3l02dq_buffer_predisable,
 };
-- 
cgit 


From 7197812187160934e748d590c552f5b4725730f9 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 14 Oct 2013 17:49:00 +0100
Subject: staging:iio:mxs-lradc: Remove redundant call to
 iio_sw_buffer_preenable()

The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core,
so there is no need to do this from the driver anymore.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Marek Vasut <marex@denx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/mxs-lradc.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index dfd1bc1cc56f..1bb03e196aa7 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -1041,10 +1041,6 @@ static int mxs_lradc_buffer_preenable(struct iio_dev *iio)
 		goto err_mem;
 	}
 
-	ret = iio_sw_buffer_preenable(iio);
-	if (ret < 0)
-		goto err_buf;
-
 	if (lradc->soc == IMX28_LRADC)
 		mxs_lradc_reg_clear(lradc, LRADC_CTRL1_MX28_LRADC_IRQ_EN_MASK,
 							LRADC_CTRL1);
@@ -1069,8 +1065,6 @@ static int mxs_lradc_buffer_preenable(struct iio_dev *iio)
 
 	return 0;
 
-err_buf:
-	kfree(lradc->buffer);
 err_mem:
 	mutex_unlock(&lradc->lock);
 	return ret;
-- 
cgit 


From 29da147245e55872f1d576dc42851154819db5e5 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 14 Oct 2013 17:49:00 +0100
Subject: staging:iio:simple-dummy: Remove redundant call to
 iio_sw_buffer_preenable()

The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core,
so there is no need to do this from the driver anymore.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/iio_simple_dummy_buffer.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/staging/iio/iio_simple_dummy_buffer.c b/drivers/staging/iio/iio_simple_dummy_buffer.c
index 2612e87fbcb4..46c134b2a5d1 100644
--- a/drivers/staging/iio/iio_simple_dummy_buffer.c
+++ b/drivers/staging/iio/iio_simple_dummy_buffer.c
@@ -98,14 +98,6 @@ done:
 }
 
 static const struct iio_buffer_setup_ops iio_simple_dummy_buffer_setup_ops = {
-	/*
-	 * iio_sw_buffer_preenable:
-	 * Generic function for equal sized ring elements + 64 bit timestamp
-	 * Assumes that any combination of channels can be enabled.
-	 * Typically replaced to implement restrictions on what combinations
-	 * can be captured (hardware scan modes).
-	 */
-	.preenable = &iio_sw_buffer_preenable,
 	/*
 	 * iio_triggered_buffer_postenable:
 	 * Generic function that simply attaches the pollfunc to the trigger.
-- 
cgit 


From 75b19bbf22842edb9f6bb037a5befa31132c032a Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 14 Oct 2013 17:49:00 +0100
Subject: staging:iio:ad5933: Remove redundant call to
 iio_sw_buffer_preenable()

The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core,
so there is no need to do this from the driver anymore.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/impedance-analyzer/ad5933.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c
index f5701159bf36..0a4298b744e6 100644
--- a/drivers/staging/iio/impedance-analyzer/ad5933.c
+++ b/drivers/staging/iio/impedance-analyzer/ad5933.c
@@ -574,10 +574,6 @@ static int ad5933_ring_preenable(struct iio_dev *indio_dev)
 	if (bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
 		return -EINVAL;
 
-	ret = iio_sw_buffer_preenable(indio_dev);
-	if (ret < 0)
-		return ret;
-
 	ret = ad5933_reset(st);
 	if (ret < 0)
 		return ret;
-- 
cgit 


From 889a62ba6d9796269b22e9d0f630fdaffa6e2630 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 14 Oct 2013 17:49:00 +0100
Subject: staging:iio:ade7758: Remove redundant call to
 iio_sw_buffer_preenable()

The equivalent of iio_sw_buffer_preenable() is now done in the IIO buffer core,
so there is no need to do this from the driver anymore.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/meter/ade7758_ring.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/staging/iio/meter/ade7758_ring.c b/drivers/staging/iio/meter/ade7758_ring.c
index 7a448ffaeb14..c0accf8cce93 100644
--- a/drivers/staging/iio/meter/ade7758_ring.c
+++ b/drivers/staging/iio/meter/ade7758_ring.c
@@ -87,15 +87,10 @@ static int ade7758_ring_preenable(struct iio_dev *indio_dev)
 {
 	struct ade7758_state *st = iio_priv(indio_dev);
 	unsigned channel;
-	int ret;
 
 	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
 		return -EINVAL;
 
-	ret = iio_sw_buffer_preenable(indio_dev);
-	if (ret < 0)
-		return ret;
-
 	channel = find_first_bit(indio_dev->active_scan_mask,
 				 indio_dev->masklength);
 
-- 
cgit 


From bf741c08af194ed0448799ff2690c8dd3da709e5 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Mon, 14 Oct 2013 17:49:00 +0100
Subject: iio: Remove unused iio_sw_buffer_preenable()

The functionality implemented by iio_sw_buffer_preenable() is now done directly
in the IIO core and previous users of iio_sw_buffer_preenable() have all been
updated to not use it anymore. It is unused now and can be remove.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/industrialio-buffer.c | 18 ------------------
 include/linux/iio/buffer.h        |  2 --
 2 files changed, 20 deletions(-)

diff --git a/drivers/iio/industrialio-buffer.c b/drivers/iio/industrialio-buffer.c
index 186f501e6415..d7ab258e3a42 100644
--- a/drivers/iio/industrialio-buffer.c
+++ b/drivers/iio/industrialio-buffer.c
@@ -749,24 +749,6 @@ done:
 }
 EXPORT_SYMBOL(iio_buffer_store_enable);
 
-int iio_sw_buffer_preenable(struct iio_dev *indio_dev)
-{
-	struct iio_buffer *buffer;
-	unsigned bytes;
-	dev_dbg(&indio_dev->dev, "%s\n", __func__);
-
-	list_for_each_entry(buffer, &indio_dev->buffer_list, buffer_list)
-		if (buffer->access->set_bytes_per_datum) {
-			bytes = iio_compute_scan_bytes(indio_dev,
-						       buffer->scan_mask,
-						       buffer->scan_timestamp);
-
-			buffer->access->set_bytes_per_datum(buffer, bytes);
-		}
-	return 0;
-}
-EXPORT_SYMBOL(iio_sw_buffer_preenable);
-
 /**
  * iio_validate_scan_mask_onehot() - Validates that exactly one channel is selected
  * @indio_dev: the iio device
diff --git a/include/linux/iio/buffer.h b/include/linux/iio/buffer.h
index 6e428d96d570..15607b45221a 100644
--- a/include/linux/iio/buffer.h
+++ b/include/linux/iio/buffer.h
@@ -206,8 +206,6 @@ ssize_t iio_buffer_show_enable(struct device *dev,
 					   iio_buffer_show_enable,	\
 					   iio_buffer_store_enable)
 
-int iio_sw_buffer_preenable(struct iio_dev *indio_dev);
-
 bool iio_validate_scan_mask_onehot(struct iio_dev *indio_dev,
 	const unsigned long *mask);
 
-- 
cgit 


From ba209f856380891a6ea6cdb07b2b068faccbff73 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Wed, 16 Oct 2013 11:57:33 -0300
Subject: perf trace: Improve event processing exit

We need to differentiate SIGCHLD from SIGINT, the later should cause as
immediate as possible exit, while the former should wait to process the
events that may be perceived in the ring buffer after the SIGCHLD is
handled.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-vf6n57ewm3mjy2sz6r491hus@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 23 ++++++++++++-----------
 1 file changed, 12 insertions(+), 11 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 86d2b1f2399c..ec8289570f4f 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1098,10 +1098,12 @@ static size_t trace__fprintf_tstamp(struct trace *trace, u64 tstamp, FILE *fp)
 }
 
 static bool done = false;
+static bool interrupted = false;
 
-static void sig_handler(int sig __maybe_unused)
+static void sig_handler(int sig)
 {
 	done = true;
+	interrupted = sig == SIGINT;
 }
 
 static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thread,
@@ -1771,24 +1773,23 @@ again:
 			handler = evsel->handler.func;
 			handler(trace, evsel, &sample);
 
-			if (done)
-				goto out_unmap_evlist;
+			if (interrupted)
+				goto out_disable;
 		}
 	}
 
 	if (trace->nr_events == before) {
-		if (done)
-			goto out_unmap_evlist;
+		int timeout = done ? 100 : -1;
 
-		poll(evlist->pollfd, evlist->nr_fds, -1);
+		if (poll(evlist->pollfd, evlist->nr_fds, timeout) > 0)
+			goto again;
+	} else {
+		goto again;
 	}
 
-	if (done)
-		perf_evlist__disable(evlist);
-	else
-		goto again;
+out_disable:
+	perf_evlist__disable(evlist);
 
-out_unmap_evlist:
 	if (!err) {
 		if (trace->summary)
 			trace__fprintf_thread_summary(trace, trace->output);
-- 
cgit 


From dcc01c0864823f91c3bf3ffca6613e2351702b87 Mon Sep 17 00:00:00 2001
From: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Date: Mon, 30 Sep 2013 17:26:29 +0300
Subject: usb: Disable USB 2.0 Link PM before device reset.

Before the USB core resets a device, we need to disable the L1 timeout
for the roothub, if USB 2.0 Link PM is enabled.  Otherwise the port may
transition into L1 in between descriptor fetches, before we know if the
USB device descriptors changed.  LPM will be re-enabled after the
full device descriptors are fetched, and we can confirm the device still
supports USB 2.0 LPM after the reset.

We don't need to wait for the USB device to exit L1 before resetting the
device, since the xHCI roothub port diagrams show a transition to the
Reset state from any of the Ux states (see Figure 34 in the 2012-08-14
xHCI specification update).

This patch should be backported to kernels as old as 3.2, that contain
the commit 65580b4321eb36f16ae8b5987bfa1bb948fc5112 "xHCI: set USB2
hardware LPM".  That was the first commit to enable USB 2.0
hardware-driven Link Power Management.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@vger.kernel.org
---
 drivers/usb/core/hub.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 3f8933f10e7d..d3a1d79d663d 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -5090,6 +5090,12 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
 	}
 	parent_hub = usb_hub_to_struct_hub(parent_hdev);
 
+	/* Disable USB2 hardware LPM.
+	 * It will be re-enabled by the enumeration process.
+	 */
+	if (udev->usb2_hw_lpm_enabled == 1)
+		usb_set_usb2_hardware_lpm(udev, 0);
+
 	bos = udev->bos;
 	udev->bos = NULL;
 
-- 
cgit 


From 58e21f73975ec927119370635bf68b9023831c56 Mon Sep 17 00:00:00 2001
From: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Date: Mon, 7 Oct 2013 17:17:20 -0700
Subject: xhci: Set L1 device slot on USB2 LPM enable/disable.

To enable USB 2.0 Link Power Management (LPM), the xHCI host controller
needs the device slot ID to generate the device address used in L1 entry
tokens.  That information is set in the L1 device slot ID field of the
USB 2.0 LPM registers.

Currently, the L1 device slot ID is overwritten when the xHCI driver
initiates the software test of USB 2.0 Link PM in
xhci_usb2_software_lpm_test.  It is never cleared when USB 2.0 Link PM
is disabled for the device.  That should be harmless, because the
Hardware LPM Enable (HLE) bit is cleared when USB 2.0 Link PM is
disabled, so the host should not pay attention to the slot ID.

This patch should have no effect on host behavior, but since
xhci_usb2_software_lpm_test is going away in an upcoming bug fix patch,
we need to move that code to the function that enables and disables USB
2.0 Link PM.

This patch should be backported to kernels as old as 3.11, that contain
the commit a558ccdcc71c7770c5e80c926a31cfe8a3892a09 "usb: xhci: add USB2
Link power management BESL support".  The upcoming bug fix patch is also
marked for that stable kernel.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@vger.kernel.org
---
 drivers/usb/host/xhci.c | 4 ++--
 drivers/usb/host/xhci.h | 1 +
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 1e36dbb48366..2983e5dd98bf 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -4216,7 +4216,7 @@ int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd,
 		}
 
 		pm_val &= ~PORT_HIRD_MASK;
-		pm_val |= PORT_HIRD(hird) | PORT_RWE;
+		pm_val |= PORT_HIRD(hird) | PORT_RWE | PORT_L1DS(udev->slot_id);
 		xhci_writel(xhci, pm_val, pm_addr);
 		pm_val = xhci_readl(xhci, pm_addr);
 		pm_val |= PORT_HLE;
@@ -4224,7 +4224,7 @@ int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd,
 		/* flush write */
 		xhci_readl(xhci, pm_addr);
 	} else {
-		pm_val &= ~(PORT_HLE | PORT_RWE | PORT_HIRD_MASK);
+		pm_val &= ~(PORT_HLE | PORT_RWE | PORT_HIRD_MASK | PORT_L1DS_MASK);
 		xhci_writel(xhci, pm_val, pm_addr);
 		/* flush write */
 		xhci_readl(xhci, pm_addr);
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 289fbfbae746..466081934b68 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -383,6 +383,7 @@ struct xhci_op_regs {
 #define	PORT_RWE		(1 << 3)
 #define	PORT_HIRD(p)		(((p) & 0xf) << 4)
 #define	PORT_HIRD_MASK		(0xf << 4)
+#define	PORT_L1DS_MASK		(0xff << 8)
 #define	PORT_L1DS(p)		(((p) & 0xff) << 8)
 #define	PORT_HLE		(1 << 16)
 
-- 
cgit 


From de68bab4fa96014cfaa6fcbcdb9750e32969fb86 Mon Sep 17 00:00:00 2001
From: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Date: Mon, 30 Sep 2013 17:26:28 +0300
Subject: usb: Don't enable USB 2.0 Link PM by default.

How it's supposed to work:
--------------------------

USB 2.0 Link PM is a lower power state that some newer USB 2.0 devices
support.  USB 3.0 devices certified by the USB-IF are required to
support it if they are plugged into a USB 2.0 only port, or a USB 2.0
cable is used.  USB 2.0 Link PM requires both a USB device and a host
controller that supports USB 2.0 hardware-enabled LPM.

USB 2.0 Link PM is designed to be enabled once by software, and the host
hardware handles transitions to the L1 state automatically.  The premise
of USB 2.0 Link PM is to be able to put the device into a lower power
link state when the bus is idle or the device NAKs USB IN transfers for
a specified amount of time.

...but hardware is broken:
--------------------------

It turns out many USB 3.0 devices claim to support USB 2.0 Link PM (by
setting the LPM bit in their USB 2.0 BOS descriptor), but they don't
actually implement it correctly.  This manifests as the USB device
refusing to respond to transfers when it is plugged into a USB 2.0 only
port under the Haswell-ULT/Lynx Point LP xHCI host.

These devices pass the xHCI driver's simple test to enable USB 2.0 Link
PM, wait for the port to enter L1, and then bring it back into L0.  They
only start to break when L1 entry is interleaved with transfers.

Some devices then fail to respond to the next control transfer (usually
a Set Configuration).  This results in devices never enumerating.

Other mass storage devices (such as a later model Western Digital My
Passport USB 3.0 hard drive) respond fine to going into L1 between
control transfers.  They ACK the entry, come out of L1 when the host
needs to send a control transfer, and respond properly to those control
transfers.  However, when the first READ10 SCSI command is sent, the
device NAKs the data phase while it's reading from the spinning disk.
Eventually, the host requests to put the link into L1, and the device
ACKs that request.  Then it never responds to the data phase of the
READ10 command.  This results in not being able to read from the drive.

Some mass storage devices (like the Corsair Survivor USB 3.0 flash
drive) are well behaved.  They ACK the entry into L1 during control
transfers, and when SCSI commands start coming in, they NAK the requests
to go into L1, because they need to be at full power.

Not all USB 3.0 devices advertise USB 2.0 link PM support.  My Point
Grey USB 3.0 webcam advertises itself as a USB 2.1 device, but doesn't
have a USB 2.0 BOS descriptor, so we don't enable USB 2.0 Link PM.  I
suspect that means the device isn't certified.

What do we do about it?
-----------------------

There's really no good way for the kernel to test these devices.
Therefore, the kernel needs to disable USB 2.0 Link PM by default, and
distros will have to enable it by writing 1 to the sysfs file
/sys/bus/usb/devices/../power/usb2_hardware_lpm.  Rip out the xHCI Link
PM test, since it's not sufficient to detect these buggy devices, and
don't automatically enable LPM after the device is addressed.

This patch should be backported to kernels as old as 3.11, that
contain the commit a558ccdcc71c7770c5e80c926a31cfe8a3892a09 "usb: xhci:
add USB2 Link power management BESL support".  Without this fix, some
USB 3.0 devices will not enumerate or work properly under USB 2.0 ports
on Haswell-ULT systems.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@vger.kernel.org
---
 drivers/usb/core/driver.c   |   3 +
 drivers/usb/core/hub.c      |   1 +
 drivers/usb/core/sysfs.c    |   6 +-
 drivers/usb/host/xhci-mem.c |  10 ---
 drivers/usb/host/xhci.c     | 161 +++++---------------------------------------
 include/linux/usb.h         |   4 +-
 6 files changed, 29 insertions(+), 156 deletions(-)

diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index f7841d44feda..689433cdef25 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -1790,6 +1790,9 @@ int usb_set_usb2_hardware_lpm(struct usb_device *udev, int enable)
 	struct usb_hcd *hcd = bus_to_hcd(udev->bus);
 	int ret = -EPERM;
 
+	if (enable && !udev->usb2_hw_lpm_allowed)
+		return 0;
+
 	if (hcd->driver->set_usb2_hw_lpm) {
 		ret = hcd->driver->set_usb2_hw_lpm(hcd, udev, enable);
 		if (!ret)
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index d3a1d79d663d..9be1a2d5fba6 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -5203,6 +5203,7 @@ static int usb_reset_and_verify_device(struct usb_device *udev)
 
 done:
 	/* Now that the alt settings are re-installed, enable LTM and LPM. */
+	usb_set_usb2_hardware_lpm(udev, 1);
 	usb_unlocked_enable_lpm(udev);
 	usb_enable_ltm(udev);
 	usb_release_bos_descriptor(udev);
diff --git a/drivers/usb/core/sysfs.c b/drivers/usb/core/sysfs.c
index 5cf431b0424c..52a97adf02a0 100644
--- a/drivers/usb/core/sysfs.c
+++ b/drivers/usb/core/sysfs.c
@@ -458,7 +458,7 @@ static ssize_t usb2_hardware_lpm_show(struct device *dev,
 	struct usb_device *udev = to_usb_device(dev);
 	const char *p;
 
-	if (udev->usb2_hw_lpm_enabled == 1)
+	if (udev->usb2_hw_lpm_allowed == 1)
 		p = "enabled";
 	else
 		p = "disabled";
@@ -478,8 +478,10 @@ static ssize_t usb2_hardware_lpm_store(struct device *dev,
 
 	ret = strtobool(buf, &value);
 
-	if (!ret)
+	if (!ret) {
+		udev->usb2_hw_lpm_allowed = value;
 		ret = usb_set_usb2_hardware_lpm(udev, value);
+	}
 
 	usb_unlock_device(udev);
 
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 83bcd13622c3..49b8bd063fab 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1693,9 +1693,7 @@ void xhci_free_command(struct xhci_hcd *xhci,
 void xhci_mem_cleanup(struct xhci_hcd *xhci)
 {
 	struct pci_dev	*pdev = to_pci_dev(xhci_to_hcd(xhci)->self.controller);
-	struct dev_info	*dev_info, *next;
 	struct xhci_cd  *cur_cd, *next_cd;
-	unsigned long	flags;
 	int size;
 	int i, j, num_ports;
 
@@ -1756,13 +1754,6 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
 
 	scratchpad_free(xhci);
 
-	spin_lock_irqsave(&xhci->lock, flags);
-	list_for_each_entry_safe(dev_info, next, &xhci->lpm_failed_devs, list) {
-		list_del(&dev_info->list);
-		kfree(dev_info);
-	}
-	spin_unlock_irqrestore(&xhci->lock, flags);
-
 	if (!xhci->rh_bw)
 		goto no_bw;
 
@@ -2231,7 +2222,6 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
 	u32 page_size, temp;
 	int i;
 
-	INIT_LIST_HEAD(&xhci->lpm_failed_devs);
 	INIT_LIST_HEAD(&xhci->cancel_cmd_list);
 
 	page_size = xhci_readl(xhci, &xhci->op_regs->page_size);
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 2983e5dd98bf..0ea253ec813d 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -4013,133 +4013,6 @@ static int xhci_calculate_usb2_hw_lpm_params(struct usb_device *udev)
 	return PORT_BESLD(besld) | PORT_L1_TIMEOUT(l1) | PORT_HIRDM(hirdm);
 }
 
-static int xhci_usb2_software_lpm_test(struct usb_hcd *hcd,
-					struct usb_device *udev)
-{
-	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
-	struct dev_info	*dev_info;
-	__le32 __iomem	**port_array;
-	__le32 __iomem	*addr, *pm_addr;
-	u32		temp, dev_id;
-	unsigned int	port_num;
-	unsigned long	flags;
-	int		hird;
-	int		ret;
-
-	if (hcd->speed == HCD_USB3 || !xhci->sw_lpm_support ||
-			!udev->lpm_capable)
-		return -EINVAL;
-
-	/* we only support lpm for non-hub device connected to root hub yet */
-	if (!udev->parent || udev->parent->parent ||
-			udev->descriptor.bDeviceClass == USB_CLASS_HUB)
-		return -EINVAL;
-
-	spin_lock_irqsave(&xhci->lock, flags);
-
-	/* Look for devices in lpm_failed_devs list */
-	dev_id = le16_to_cpu(udev->descriptor.idVendor) << 16 |
-			le16_to_cpu(udev->descriptor.idProduct);
-	list_for_each_entry(dev_info, &xhci->lpm_failed_devs, list) {
-		if (dev_info->dev_id == dev_id) {
-			ret = -EINVAL;
-			goto finish;
-		}
-	}
-
-	port_array = xhci->usb2_ports;
-	port_num = udev->portnum - 1;
-
-	if (port_num > HCS_MAX_PORTS(xhci->hcs_params1)) {
-		xhci_dbg(xhci, "invalid port number %d\n", udev->portnum);
-		ret = -EINVAL;
-		goto finish;
-	}
-
-	/*
-	 * Test USB 2.0 software LPM.
-	 * FIXME: some xHCI 1.0 hosts may implement a new register to set up
-	 * hardware-controlled USB 2.0 LPM. See section 5.4.11 and 4.23.5.1.1.1
-	 * in the June 2011 errata release.
-	 */
-	xhci_dbg(xhci, "test port %d software LPM\n", port_num);
-	/*
-	 * Set L1 Device Slot and HIRD/BESL.
-	 * Check device's USB 2.0 extension descriptor to determine whether
-	 * HIRD or BESL shoule be used. See USB2.0 LPM errata.
-	 */
-	pm_addr = port_array[port_num] + PORTPMSC;
-	hird = xhci_calculate_hird_besl(xhci, udev);
-	temp = PORT_L1DS(udev->slot_id) | PORT_HIRD(hird);
-	xhci_writel(xhci, temp, pm_addr);
-
-	/* Set port link state to U2(L1) */
-	addr = port_array[port_num];
-	xhci_set_link_state(xhci, port_array, port_num, XDEV_U2);
-
-	/* wait for ACK */
-	spin_unlock_irqrestore(&xhci->lock, flags);
-	msleep(10);
-	spin_lock_irqsave(&xhci->lock, flags);
-
-	/* Check L1 Status */
-	ret = xhci_handshake(xhci, pm_addr,
-			PORT_L1S_MASK, PORT_L1S_SUCCESS, 125);
-	if (ret != -ETIMEDOUT) {
-		/* enter L1 successfully */
-		temp = xhci_readl(xhci, addr);
-		xhci_dbg(xhci, "port %d entered L1 state, port status 0x%x\n",
-				port_num, temp);
-		ret = 0;
-	} else {
-		temp = xhci_readl(xhci, pm_addr);
-		xhci_dbg(xhci, "port %d software lpm failed, L1 status %d\n",
-				port_num, temp & PORT_L1S_MASK);
-		ret = -EINVAL;
-	}
-
-	/* Resume the port */
-	xhci_set_link_state(xhci, port_array, port_num, XDEV_U0);
-
-	spin_unlock_irqrestore(&xhci->lock, flags);
-	msleep(10);
-	spin_lock_irqsave(&xhci->lock, flags);
-
-	/* Clear PLC */
-	xhci_test_and_clear_bit(xhci, port_array, port_num, PORT_PLC);
-
-	/* Check PORTSC to make sure the device is in the right state */
-	if (!ret) {
-		temp = xhci_readl(xhci, addr);
-		xhci_dbg(xhci, "resumed port %d status 0x%x\n",	port_num, temp);
-		if (!(temp & PORT_CONNECT) || !(temp & PORT_PE) ||
-				(temp & PORT_PLS_MASK) != XDEV_U0) {
-			xhci_dbg(xhci, "port L1 resume fail\n");
-			ret = -EINVAL;
-		}
-	}
-
-	if (ret) {
-		/* Insert dev to lpm_failed_devs list */
-		xhci_warn(xhci, "device LPM test failed, may disconnect and "
-				"re-enumerate\n");
-		dev_info = kzalloc(sizeof(struct dev_info), GFP_ATOMIC);
-		if (!dev_info) {
-			ret = -ENOMEM;
-			goto finish;
-		}
-		dev_info->dev_id = dev_id;
-		INIT_LIST_HEAD(&dev_info->list);
-		list_add(&dev_info->list, &xhci->lpm_failed_devs);
-	} else {
-		xhci_ring_device(xhci, udev->slot_id);
-	}
-
-finish:
-	spin_unlock_irqrestore(&xhci->lock, flags);
-	return ret;
-}
-
 int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd,
 			struct usb_device *udev, int enable)
 {
@@ -4267,24 +4140,26 @@ static int xhci_check_usb2_port_capability(struct xhci_hcd *xhci, int port,
 int xhci_update_device(struct usb_hcd *hcd, struct usb_device *udev)
 {
 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
-	int		ret;
 	int		portnum = udev->portnum - 1;
 
-	ret = xhci_usb2_software_lpm_test(hcd, udev);
-	if (!ret) {
-		xhci_dbg(xhci, "software LPM test succeed\n");
-		if (xhci->hw_lpm_support == 1 &&
-		    xhci_check_usb2_port_capability(xhci, portnum, XHCI_HLC)) {
-			udev->usb2_hw_lpm_capable = 1;
-			udev->l1_params.timeout = XHCI_L1_TIMEOUT;
-			udev->l1_params.besl = XHCI_DEFAULT_BESL;
-			if (xhci_check_usb2_port_capability(xhci, portnum,
-							    XHCI_BLC))
-				udev->usb2_hw_lpm_besl_capable = 1;
-			ret = xhci_set_usb2_hardware_lpm(hcd, udev, 1);
-			if (!ret)
-				udev->usb2_hw_lpm_enabled = 1;
-		}
+	if (hcd->speed == HCD_USB3 || !xhci->sw_lpm_support ||
+			!udev->lpm_capable)
+		return 0;
+
+	/* we only support lpm for non-hub device connected to root hub yet */
+	if (!udev->parent || udev->parent->parent ||
+			udev->descriptor.bDeviceClass == USB_CLASS_HUB)
+		return 0;
+
+	if (xhci->hw_lpm_support == 1 &&
+			xhci_check_usb2_port_capability(
+				xhci, portnum, XHCI_HLC)) {
+		udev->usb2_hw_lpm_capable = 1;
+		udev->l1_params.timeout = XHCI_L1_TIMEOUT;
+		udev->l1_params.besl = XHCI_DEFAULT_BESL;
+		if (xhci_check_usb2_port_capability(xhci, portnum,
+					XHCI_BLC))
+			udev->usb2_hw_lpm_besl_capable = 1;
 	}
 
 	return 0;
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 055ba74bee80..7454865ad148 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -475,7 +475,8 @@ struct usb3_lpm_parameters {
  * @lpm_capable: device supports LPM
  * @usb2_hw_lpm_capable: device can perform USB2 hardware LPM
  * @usb2_hw_lpm_besl_capable: device can perform USB2 hardware BESL LPM
- * @usb2_hw_lpm_enabled: USB2 hardware LPM enabled
+ * @usb2_hw_lpm_enabled: USB2 hardware LPM is enabled
+ * @usb2_hw_lpm_allowed: Userspace allows USB 2.0 LPM to be enabled
  * @usb3_lpm_enabled: USB3 hardware LPM enabled
  * @string_langid: language ID for strings
  * @product: iProduct string, if present (static)
@@ -548,6 +549,7 @@ struct usb_device {
 	unsigned usb2_hw_lpm_capable:1;
 	unsigned usb2_hw_lpm_besl_capable:1;
 	unsigned usb2_hw_lpm_enabled:1;
+	unsigned usb2_hw_lpm_allowed:1;
 	unsigned usb3_lpm_enabled:1;
 	int string_langid;
 
-- 
cgit 


From 890dae88672175f1d39f6105444d9bdc71c89258 Mon Sep 17 00:00:00 2001
From: Mathias Nyman <mathias.nyman@linux.intel.com>
Date: Mon, 30 Sep 2013 17:26:31 +0300
Subject: xhci: Enable LPM support only for hardwired or BESL devices

Some usb3 devices falsely claim they support usb2 hardware Link PM
when connected to a usb2 port. We only trust hardwired devices
or devices with the later BESL LPM support to be LPM enabled as default.

[Note: Sarah re-worked the original patch to move the code into the USB
core, and updated it to check whether the USB device supports BESL,
instead of checking if the xHCI port it's connected to supports BESL
encoding.]

This patch should be backported to kernels as old as 3.11, that
contain the commit a558ccdcc71c7770c5e80c926a31cfe8a3892a09 "usb: xhci:
add USB2 Link power management BESL support".  Without this fix, some
USB 3.0 devices will not enumerate or work properly under USB 2.0 ports
on Haswell-ULT systems.

Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@vger.kernel.org
---
 drivers/usb/core/hub.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 9be1a2d5fba6..566ac5531407 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -3953,6 +3953,32 @@ static int hub_set_address(struct usb_device *udev, int devnum)
 	return retval;
 }
 
+/*
+ * There are reports of USB 3.0 devices that say they support USB 2.0 Link PM
+ * when they're plugged into a USB 2.0 port, but they don't work when LPM is
+ * enabled.
+ *
+ * Only enable USB 2.0 Link PM if the port is internal (hardwired), or the
+ * device says it supports the new USB 2.0 Link PM errata by setting the BESL
+ * support bit in the BOS descriptor.
+ */
+static void hub_set_initial_usb2_lpm_policy(struct usb_device *udev)
+{
+	int connect_type;
+
+	if (!udev->usb2_hw_lpm_capable)
+		return;
+
+	connect_type = usb_get_hub_port_connect_type(udev->parent,
+			udev->portnum);
+
+	if ((udev->bos->ext_cap->bmAttributes & USB_BESL_SUPPORT) ||
+			connect_type == USB_PORT_CONNECT_TYPE_HARD_WIRED) {
+		udev->usb2_hw_lpm_allowed = 1;
+		usb_set_usb2_hardware_lpm(udev, 1);
+	}
+}
+
 /* Reset device, (re)assign address, get device descriptor.
  * Device connection must be stable, no more debouncing needed.
  * Returns device in USB_STATE_ADDRESS, except on error.
@@ -4246,6 +4272,7 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
 	/* notify HCD that we have a device connected and addressed */
 	if (hcd->driver->update_device)
 		hcd->driver->update_device(hcd, udev);
+	hub_set_initial_usb2_lpm_policy(udev);
 fail:
 	if (retval) {
 		hub_port_disable(hub, port1, 0);
-- 
cgit 


From f468f7b9467b285b87ea61e2a3c8c0e641117b0e Mon Sep 17 00:00:00 2001
From: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Date: Tue, 8 Oct 2013 08:28:43 -0700
Subject: usb: Push USB2 LPM disable on disconnect into USB core.

The USB core currently handles enabling and disabling optional USB power
management features during device transitions (device suspend/resume,
driver bind/unbind, device reset, and device disconnect).  Those
optional power features include Latency Tolerance Messaging (LTM),
USB 3.0 Link PM, and USB 2.0 Link PM.

The USB core currently enables LPM on device enumeration and disables
USB 2.0 Link PM when the device is reset.  However, the xHCI driver
disables LPM when the device is disconnected and the device context is
freed.  Push the call up into the USB core, in order to be consistent
with the core handling all power management enabling and disabling.

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/core/message.c | 4 ++++
 drivers/usb/host/xhci.c    | 5 -----
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/core/message.c b/drivers/usb/core/message.c
index 82927e1ed27d..bb315970e475 100644
--- a/drivers/usb/core/message.c
+++ b/drivers/usb/core/message.c
@@ -1182,8 +1182,12 @@ void usb_disable_device(struct usb_device *dev, int skip_ep0)
 			put_device(&dev->actconfig->interface[i]->dev);
 			dev->actconfig->interface[i] = NULL;
 		}
+
+		if (dev->usb2_hw_lpm_enabled == 1)
+			usb_set_usb2_hardware_lpm(dev, 0);
 		usb_unlocked_disable_lpm(dev);
 		usb_disable_ltm(dev);
+
 		dev->actconfig = NULL;
 		if (dev->state == USB_STATE_CONFIGURED)
 			usb_set_device_state(dev, USB_STATE_ADDRESS);
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 0ea253ec813d..e7571c90c40f 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -3571,11 +3571,6 @@ void xhci_free_dev(struct usb_hcd *hcd, struct usb_device *udev)
 		del_timer_sync(&virt_dev->eps[i].stop_cmd_timer);
 	}
 
-	if (udev->usb2_hw_lpm_enabled) {
-		xhci_set_usb2_hardware_lpm(hcd, udev, 0);
-		udev->usb2_hw_lpm_enabled = 0;
-	}
-
 	spin_lock_irqsave(&xhci->lock, flags);
 	/* Don't disable the slot if the host controller is dead. */
 	state = xhci_readl(xhci, &xhci->op_regs->status);
-- 
cgit 


From 5f20cf12a63650afe1871c7b2c89ee84ec3c6182 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 16 Sep 2013 12:01:34 +0530
Subject: usb: xhci: Staticize xhci_del_comp_mod_timer

'xhci_del_comp_mod_timer' is local to this file.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-hub.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 773a6b28c4f1..5dd7b7de6633 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -524,7 +524,8 @@ static void xhci_hub_report_usb3_link_state(u32 *status, u32 status_reg)
  * the compliance mode timer is deleted. A port won't enter
  * compliance mode if it has previously entered U0.
  */
-void xhci_del_comp_mod_timer(struct xhci_hcd *xhci, u32 status, u16 wIndex)
+static void xhci_del_comp_mod_timer(struct xhci_hcd *xhci, u32 status,
+				    u16 wIndex)
 {
 	u32 all_ports_seen_u0 = ((1 << xhci->num_usb3_ports)-1);
 	bool port_in_u0 = ((status & PORT_PLS_MASK) == XDEV_U0);
-- 
cgit 


From d194c031994d3fc1038fa09e9e92d9be24a21921 Mon Sep 17 00:00:00 2001
From: xiao jin <jin.xiao@intel.com>
Date: Fri, 11 Oct 2013 08:57:03 +0800
Subject: xhci: correct the usage of USB_CTRL_SET_TIMEOUT

The usage of USB_CTRL_SET_TIMEOUT in xhci is incorrect.
The definition of USB_CTRL_SET_TIMEOUT is 5000ms. The
input timeout to wait_for_completion_interruptible_timeout
is jiffies. That makes the timeout be longer than what
we want, such as 50s in some platform.

The patch is to use XHCI_CMD_DEFAULT_TIMEOUT instead of
USB_CTRL_SET_TIMEOUT as command completion event timeout.

Signed-off-by: xiao jin <jin.xiao@intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-hub.c | 2 +-
 drivers/usb/host/xhci.c     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 5dd7b7de6633..0c802081e33b 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -296,7 +296,7 @@ static int xhci_stop_device(struct xhci_hcd *xhci, int slot_id, int suspend)
 	/* Wait for last stop endpoint command to finish */
 	timeleft = wait_for_completion_interruptible_timeout(
 			cmd->completion,
-			USB_CTRL_SET_TIMEOUT);
+			XHCI_CMD_DEFAULT_TIMEOUT);
 	if (timeleft <= 0) {
 		xhci_warn(xhci, "%s while waiting for stop endpoint command\n",
 				timeleft == 0 ? "Timeout" : "Signal");
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index e7571c90c40f..d3f6abbda67e 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -3447,7 +3447,7 @@ int xhci_discover_or_reset_device(struct usb_hcd *hcd, struct usb_device *udev)
 	/* Wait for the Reset Device command to finish */
 	timeleft = wait_for_completion_interruptible_timeout(
 			reset_device_cmd->completion,
-			USB_CTRL_SET_TIMEOUT);
+			XHCI_CMD_DEFAULT_TIMEOUT);
 	if (timeleft <= 0) {
 		xhci_warn(xhci, "%s while waiting for reset device command\n",
 				timeleft == 0 ? "Timeout" : "Signal");
-- 
cgit 


From 07a37e9e425a3176875a0c91e59ae8bc65d2ddb9 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Mon, 9 Sep 2013 13:29:45 +0300
Subject: xhci: remove unused argument from xhci_giveback_urb_in_irq()

This patch removes the "adjective" argument from xhci_giveback_urb_in_irq(),
since it is not used in the function anymore.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-ring.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 6bfbd80ec2b9..9a6b18e31d83 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -726,7 +726,7 @@ static void xhci_stop_watchdog_timer_in_irq(struct xhci_hcd *xhci,
 
 /* Must be called with xhci->lock held in interrupt context */
 static void xhci_giveback_urb_in_irq(struct xhci_hcd *xhci,
-		struct xhci_td *cur_td, int status, char *adjective)
+		struct xhci_td *cur_td, int status)
 {
 	struct usb_hcd *hcd;
 	struct urb	*urb;
@@ -891,7 +891,7 @@ remove_finished_td:
 		/* Doesn't matter what we pass for status, since the core will
 		 * just overwrite it (because the URB has been unlinked).
 		 */
-		xhci_giveback_urb_in_irq(xhci, cur_td, 0, "cancelled");
+		xhci_giveback_urb_in_irq(xhci, cur_td, 0);
 
 		/* Stop processing the cancelled list if the watchdog timer is
 		 * running.
@@ -1001,7 +1001,7 @@ void xhci_stop_endpoint_command_watchdog(unsigned long arg)
 				if (!list_empty(&cur_td->cancelled_td_list))
 					list_del_init(&cur_td->cancelled_td_list);
 				xhci_giveback_urb_in_irq(xhci, cur_td,
-						-ESHUTDOWN, "killed");
+						-ESHUTDOWN);
 			}
 			while (!list_empty(&temp_ep->cancelled_td_list)) {
 				cur_td = list_first_entry(
@@ -1010,7 +1010,7 @@ void xhci_stop_endpoint_command_watchdog(unsigned long arg)
 						cancelled_td_list);
 				list_del_init(&cur_td->cancelled_td_list);
 				xhci_giveback_urb_in_irq(xhci, cur_td,
-						-ESHUTDOWN, "killed");
+						-ESHUTDOWN);
 			}
 		}
 	}
-- 
cgit 


From 60b9593cf225827b6b887db4061ea9ece052fbf3 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Mon, 9 Sep 2013 13:29:46 +0300
Subject: xhci: rename existing Command Completion Event handlers

This patch renames the function handlers of a triggered Command Completion
Event that correspond to each command type into 'xhci_handle_cmd_<type>'.
That is done to give a consistent naming space to all the functions that
handle Command Completion Events and that will permit the code reader to
reference to them more easily.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-ring.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 9a6b18e31d83..f5d504740281 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -765,7 +765,7 @@ static void xhci_giveback_urb_in_irq(struct xhci_hcd *xhci,
  *  2. Otherwise, we turn all the TRBs in the TD into No-op TRBs (with the chain
  *     bit cleared) so that the HW will skip over them.
  */
-static void handle_stopped_endpoint(struct xhci_hcd *xhci,
+static void xhci_handle_cmd_stop_ep(struct xhci_hcd *xhci,
 		union xhci_trb *trb, struct xhci_event_cmd *event)
 {
 	unsigned int slot_id;
@@ -1077,9 +1077,8 @@ static void update_ring_for_set_deq_completion(struct xhci_hcd *xhci,
  * endpoint doorbell to restart the ring, but only if there aren't more
  * cancellations pending.
  */
-static void handle_set_deq_completion(struct xhci_hcd *xhci,
-		struct xhci_event_cmd *event,
-		union xhci_trb *trb)
+static void xhci_handle_cmd_set_deq(struct xhci_hcd *xhci,
+		struct xhci_event_cmd *event, union xhci_trb *trb)
 {
 	unsigned int slot_id;
 	unsigned int ep_index;
@@ -1171,9 +1170,8 @@ static void handle_set_deq_completion(struct xhci_hcd *xhci,
 	ring_doorbell_for_active_rings(xhci, slot_id, ep_index);
 }
 
-static void handle_reset_ep_completion(struct xhci_hcd *xhci,
-		struct xhci_event_cmd *event,
-		union xhci_trb *trb)
+static void xhci_handle_cmd_reset_ep(struct xhci_hcd *xhci,
+		struct xhci_event_cmd *event, union xhci_trb *trb)
 {
 	int slot_id;
 	unsigned int ep_index;
@@ -1517,15 +1515,15 @@ bandwidth_change:
 		complete(&xhci->addr_dev);
 		break;
 	case TRB_TYPE(TRB_STOP_RING):
-		handle_stopped_endpoint(xhci, xhci->cmd_ring->dequeue, event);
+		xhci_handle_cmd_stop_ep(xhci, xhci->cmd_ring->dequeue, event);
 		break;
 	case TRB_TYPE(TRB_SET_DEQ):
-		handle_set_deq_completion(xhci, event, xhci->cmd_ring->dequeue);
+		xhci_handle_cmd_set_deq(xhci, event, xhci->cmd_ring->dequeue);
 		break;
 	case TRB_TYPE(TRB_CMD_NOOP):
 		break;
 	case TRB_TYPE(TRB_RESET_EP):
-		handle_reset_ep_completion(xhci, event, xhci->cmd_ring->dequeue);
+		xhci_handle_cmd_reset_ep(xhci, event, xhci->cmd_ring->dequeue);
 		break;
 	case TRB_TYPE(TRB_RESET_DEV):
 		xhci_dbg(xhci, "Completed reset device command.\n");
-- 
cgit 


From b244b431f89e152dd4bf35d71786f1c0eb8cba7e Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Mon, 9 Sep 2013 13:29:47 +0300
Subject: xhci: refactor TRB_ENABLE_SLOT case into function

The function that handles xHCI command completion is much too long and
there is need to be broken up into individual functions for each command
completion to improve code readablity.
This patch refactors the code in TRB_ENABLE_SLOT switch case in
handle_cmd_completion() into a fuction named xhci_handle_cmd_enable_slot().

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-ring.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index f5d504740281..4cad420d7708 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1384,6 +1384,16 @@ static int handle_stopped_cmd_ring(struct xhci_hcd *xhci,
 	return cur_trb_is_good;
 }
 
+static void xhci_handle_cmd_enable_slot(struct xhci_hcd *xhci, int slot_id,
+		u32 cmd_comp_code)
+{
+	if (cmd_comp_code == COMP_SUCCESS)
+		xhci->slot_id = slot_id;
+	else
+		xhci->slot_id = 0;
+	complete(&xhci->addr_dev);
+}
+
 static void handle_cmd_completion(struct xhci_hcd *xhci,
 		struct xhci_event_cmd *event)
 {
@@ -1437,11 +1447,8 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
 	switch (le32_to_cpu(xhci->cmd_ring->dequeue->generic.field[3])
 		& TRB_TYPE_BITMASK) {
 	case TRB_TYPE(TRB_ENABLE_SLOT):
-		if (GET_COMP_CODE(le32_to_cpu(event->status)) == COMP_SUCCESS)
-			xhci->slot_id = slot_id;
-		else
-			xhci->slot_id = 0;
-		complete(&xhci->addr_dev);
+		xhci_handle_cmd_enable_slot(xhci, slot_id,
+				GET_COMP_CODE(le32_to_cpu(event->status)));
 		break;
 	case TRB_TYPE(TRB_DISABLE_SLOT):
 		if (xhci->devs[slot_id]) {
-- 
cgit 


From 6c02dd147a7a3dbbfc7451abbf58b3b2a2a5483d Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Mon, 9 Sep 2013 13:29:48 +0300
Subject: xhci: refactor TRB_DISABLE_SLOT case into function

The function that handles xHCI command completion is much too long and
there is need to be broken up into individual functions for each command
completion to improve code readablity.
This patch refactors the code in TRB_DISABLE_SLOT switch case in
handle_cmd_completion() into a fuction named xhci_handle_cmd_disable_slot().

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-ring.c | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 4cad420d7708..0a4c86eeb385 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1394,6 +1394,19 @@ static void xhci_handle_cmd_enable_slot(struct xhci_hcd *xhci, int slot_id,
 	complete(&xhci->addr_dev);
 }
 
+static void xhci_handle_cmd_disable_slot(struct xhci_hcd *xhci, int slot_id)
+{
+	struct xhci_virt_device *virt_dev;
+
+	virt_dev = xhci->devs[slot_id];
+	if (!virt_dev)
+		return;
+	if (xhci->quirks & XHCI_EP_LIMIT_QUIRK)
+		/* Delete default control endpoint resources */
+		xhci_free_device_endpoint_resources(xhci, virt_dev, true);
+	xhci_free_virt_device(xhci, slot_id);
+}
+
 static void handle_cmd_completion(struct xhci_hcd *xhci,
 		struct xhci_event_cmd *event)
 {
@@ -1451,13 +1464,7 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
 				GET_COMP_CODE(le32_to_cpu(event->status)));
 		break;
 	case TRB_TYPE(TRB_DISABLE_SLOT):
-		if (xhci->devs[slot_id]) {
-			if (xhci->quirks & XHCI_EP_LIMIT_QUIRK)
-				/* Delete default control endpoint resources */
-				xhci_free_device_endpoint_resources(xhci,
-						xhci->devs[slot_id], true);
-			xhci_free_virt_device(xhci, slot_id);
-		}
+		xhci_handle_cmd_disable_slot(xhci, slot_id);
 		break;
 	case TRB_TYPE(TRB_CONFIG_EP):
 		virt_dev = xhci->devs[slot_id];
-- 
cgit 


From 9b3103ac9d19525781c297c4fb1e544e077c8901 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Mon, 9 Sep 2013 13:29:49 +0300
Subject: xhci: refactor TRB_ADDR_DEV case into function

The function that handles xHCI command completion is much too long and
there is need to be broken up into individual functions for each command
completion to improve code readablity.
This patch refactors the code in TRB_ADDR_DEV switch case in
handle_cmd_completion() into a fuction named xhci_handle_cmd_addr_dev().

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-ring.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 0a4c86eeb385..e3b61b834aeb 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1407,6 +1407,13 @@ static void xhci_handle_cmd_disable_slot(struct xhci_hcd *xhci, int slot_id)
 	xhci_free_virt_device(xhci, slot_id);
 }
 
+static void xhci_handle_cmd_addr_dev(struct xhci_hcd *xhci, int slot_id,
+		u32 cmd_comp_code)
+{
+	xhci->devs[slot_id]->cmd_status = cmd_comp_code;
+	complete(&xhci->addr_dev);
+}
+
 static void handle_cmd_completion(struct xhci_hcd *xhci,
 		struct xhci_event_cmd *event)
 {
@@ -1525,8 +1532,8 @@ bandwidth_change:
 		complete(&xhci->devs[slot_id]->cmd_completion);
 		break;
 	case TRB_TYPE(TRB_ADDR_DEV):
-		xhci->devs[slot_id]->cmd_status = GET_COMP_CODE(le32_to_cpu(event->status));
-		complete(&xhci->addr_dev);
+		xhci_handle_cmd_addr_dev(xhci, slot_id,
+				GET_COMP_CODE(le32_to_cpu(event->status)));
 		break;
 	case TRB_TYPE(TRB_STOP_RING):
 		xhci_handle_cmd_stop_ep(xhci, xhci->cmd_ring->dequeue, event);
-- 
cgit 


From 20e7acb13ff48fbc884d5918c3697c27de63922a Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Mon, 9 Sep 2013 13:29:50 +0300
Subject: xhci: use completion event's slot id rather than dig it out of
 command

Since the slot id retrieved from the Reset Device TRB matches the slot id in
the command completion event, which is available, there is no need to determine
it again.
This patch removes the uneccessary reassignment to slot id and adds a WARN_ON
in case the two Slot ID fields differ (although according xhci spec rev1.0
they should not differ).

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-ring.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index e3b61b834aeb..88939b798ac6 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1547,9 +1547,9 @@ bandwidth_change:
 		xhci_handle_cmd_reset_ep(xhci, event, xhci->cmd_ring->dequeue);
 		break;
 	case TRB_TYPE(TRB_RESET_DEV):
+		WARN_ON(slot_id != TRB_TO_SLOT_ID(
+				le32_to_cpu(xhci->cmd_ring->dequeue->generic.field[3])));
 		xhci_dbg(xhci, "Completed reset device command.\n");
-		slot_id = TRB_TO_SLOT_ID(
-			le32_to_cpu(xhci->cmd_ring->dequeue->generic.field[3]));
 		virt_dev = xhci->devs[slot_id];
 		if (virt_dev)
 			handle_cmd_in_cmd_wait_list(xhci, virt_dev, event);
-- 
cgit 


From f681321b40d77fa360b8b2155af95cd5959d2dde Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Mon, 9 Sep 2013 13:29:51 +0300
Subject: xhci: refactor TRB_RESET_DEV case into function

The function that handles xHCI command completion is much too long and
there is need to be broken up into individual functions for each command
completion to improve code readablity.
This patch refactors the code in TRB_RESET_DEV switch case in
handle_cmd_completion() into a fuction named xhci_handle_cmd_reset_dev().

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-ring.c | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 88939b798ac6..64442ac995d9 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1414,6 +1414,20 @@ static void xhci_handle_cmd_addr_dev(struct xhci_hcd *xhci, int slot_id,
 	complete(&xhci->addr_dev);
 }
 
+static void xhci_handle_cmd_reset_dev(struct xhci_hcd *xhci, int slot_id,
+		struct xhci_event_cmd *event)
+{
+	struct xhci_virt_device *virt_dev;
+
+	xhci_dbg(xhci, "Completed reset device command.\n");
+	virt_dev = xhci->devs[slot_id];
+	if (virt_dev)
+		handle_cmd_in_cmd_wait_list(xhci, virt_dev, event);
+	else
+		xhci_warn(xhci, "Reset device command completion "
+				"for disabled slot %u\n", slot_id);
+}
+
 static void handle_cmd_completion(struct xhci_hcd *xhci,
 		struct xhci_event_cmd *event)
 {
@@ -1549,13 +1563,7 @@ bandwidth_change:
 	case TRB_TYPE(TRB_RESET_DEV):
 		WARN_ON(slot_id != TRB_TO_SLOT_ID(
 				le32_to_cpu(xhci->cmd_ring->dequeue->generic.field[3])));
-		xhci_dbg(xhci, "Completed reset device command.\n");
-		virt_dev = xhci->devs[slot_id];
-		if (virt_dev)
-			handle_cmd_in_cmd_wait_list(xhci, virt_dev, event);
-		else
-			xhci_warn(xhci, "Reset device command completion "
-					"for disabled slot %u\n", slot_id);
+		xhci_handle_cmd_reset_dev(xhci, slot_id, event);
 		break;
 	case TRB_TYPE(TRB_NEC_GET_FW):
 		if (!(xhci->quirks & XHCI_NEC_HOST)) {
-- 
cgit 


From 2c070821e2b2ce2e75861b2b56062df1757b9183 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Mon, 9 Sep 2013 13:29:52 +0300
Subject: xhci: refactor TRB_NEC_GET_FW case into function

The function that handles xHCI command completion is much too long and
there is need to be broken up into individual functions for each command
completion to improve code readablity.
This patch refactors the code in TRB_NEC_GET_FW switch case in
handle_cmd_completion() into a fuction named xhci_handle_cmd_nec_get_fw().

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-ring.c | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 64442ac995d9..f926a81c0417 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1428,6 +1428,19 @@ static void xhci_handle_cmd_reset_dev(struct xhci_hcd *xhci, int slot_id,
 				"for disabled slot %u\n", slot_id);
 }
 
+static void xhci_handle_cmd_nec_get_fw(struct xhci_hcd *xhci,
+		struct xhci_event_cmd *event)
+{
+	if (!(xhci->quirks & XHCI_NEC_HOST)) {
+		xhci->error_bitmask |= 1 << 6;
+		return;
+	}
+	xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
+			"NEC firmware version %2x.%02x",
+			NEC_FW_MAJOR(le32_to_cpu(event->status)),
+			NEC_FW_MINOR(le32_to_cpu(event->status)));
+}
+
 static void handle_cmd_completion(struct xhci_hcd *xhci,
 		struct xhci_event_cmd *event)
 {
@@ -1566,14 +1579,7 @@ bandwidth_change:
 		xhci_handle_cmd_reset_dev(xhci, slot_id, event);
 		break;
 	case TRB_TYPE(TRB_NEC_GET_FW):
-		if (!(xhci->quirks & XHCI_NEC_HOST)) {
-			xhci->error_bitmask |= 1 << 6;
-			break;
-		}
-		xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
-			"NEC firmware version %2x.%02x",
-			 NEC_FW_MAJOR(le32_to_cpu(event->status)),
-			 NEC_FW_MINOR(le32_to_cpu(event->status)));
+		xhci_handle_cmd_nec_get_fw(xhci, event);
 		break;
 	default:
 		/* Skip over unknown commands on the event ring */
-- 
cgit 


From 07948a8da6241984b8359830498855573d552d0d Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Mon, 9 Sep 2013 13:29:53 +0300
Subject: xhci: refactor TRB_EVAL_CONTEXT case into function

The function that handles xHCI command completion is much too long and
there is need to be broken up into individual functions for each command
completion to improve code readablity.
This patch refactors the code in TRB_EVAL_CONTEXT switch case in
handle_cmd_completion() into a fuction named xhci_handle_cmd_eval_ctx().

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-ring.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index f926a81c0417..39a2bfbeefb5 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1407,6 +1407,18 @@ static void xhci_handle_cmd_disable_slot(struct xhci_hcd *xhci, int slot_id)
 	xhci_free_virt_device(xhci, slot_id);
 }
 
+static void xhci_handle_cmd_eval_ctx(struct xhci_hcd *xhci, int slot_id,
+		struct xhci_event_cmd *event, u32 cmd_comp_code)
+{
+	struct xhci_virt_device *virt_dev;
+
+	virt_dev = xhci->devs[slot_id];
+	if (handle_cmd_in_cmd_wait_list(xhci, virt_dev, event))
+		return;
+	virt_dev->cmd_status = cmd_comp_code;
+	complete(&virt_dev->cmd_completion);
+}
+
 static void xhci_handle_cmd_addr_dev(struct xhci_hcd *xhci, int slot_id,
 		u32 cmd_comp_code)
 {
@@ -1552,11 +1564,8 @@ bandwidth_change:
 		complete(&xhci->devs[slot_id]->cmd_completion);
 		break;
 	case TRB_TYPE(TRB_EVAL_CONTEXT):
-		virt_dev = xhci->devs[slot_id];
-		if (handle_cmd_in_cmd_wait_list(xhci, virt_dev, event))
-			break;
-		xhci->devs[slot_id]->cmd_status = GET_COMP_CODE(le32_to_cpu(event->status));
-		complete(&xhci->devs[slot_id]->cmd_completion);
+		xhci_handle_cmd_eval_ctx(xhci, slot_id, event,
+				GET_COMP_CODE(le32_to_cpu(event->status)));
 		break;
 	case TRB_TYPE(TRB_ADDR_DEV):
 		xhci_handle_cmd_addr_dev(xhci, slot_id,
-- 
cgit 


From fd54498733f8c372deca99892ae8cae0799dfe68 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Mon, 9 Sep 2013 13:29:54 +0300
Subject: xhci: remove unused 'ep_ring' variable in handle_cmd_completion()

This patch removes the variable 'ep_ring' that is assigned in
TRB_CONFIG_EP switch case but never used.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-ring.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 39a2bfbeefb5..0bef11b3dd22 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1462,7 +1462,6 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
 	struct xhci_input_control_ctx *ctrl_ctx;
 	struct xhci_virt_device *virt_dev;
 	unsigned int ep_index;
-	struct xhci_ring *ep_ring;
 	unsigned int ep_state;
 
 	cmd_dma = le64_to_cpu(event->cmd_trb);
@@ -1542,7 +1541,6 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
 				ep_index != (unsigned int) -1 &&
 		    le32_to_cpu(ctrl_ctx->add_flags) - SLOT_FLAG ==
 		    le32_to_cpu(ctrl_ctx->drop_flags)) {
-			ep_ring = xhci->devs[slot_id]->eps[ep_index].ring;
 			ep_state = xhci->devs[slot_id]->eps[ep_index].ep_state;
 			if (!(ep_state & EP_HALTED))
 				goto bandwidth_change;
-- 
cgit 


From 6ed46d3337b1f4a8f9fa7438589cab5f1bb75e98 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Mon, 9 Sep 2013 13:29:55 +0300
Subject: xhci: refactor TRB_CONFIG_EP case into function

The function that handles xHCI command completion is much too long and
there is need to be broken up into individual functions for each command
completion to improve code readablity.
This patch refactors the code in TRB_CONFIG_EP switch case, in
handle_cmd_completion(), into a fuction named xhci_handle_cmd_config_ep().

There were added two additional variables, 'add_flags' and 'drop_flags',
to reduce line length below 80 chars and improve code readability.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-ring.c | 114 +++++++++++++++++++++++--------------------
 1 file changed, 62 insertions(+), 52 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 0bef11b3dd22..3e8053284752 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1407,6 +1407,66 @@ static void xhci_handle_cmd_disable_slot(struct xhci_hcd *xhci, int slot_id)
 	xhci_free_virt_device(xhci, slot_id);
 }
 
+static void xhci_handle_cmd_config_ep(struct xhci_hcd *xhci, int slot_id,
+		struct xhci_event_cmd *event, u32 cmd_comp_code)
+{
+	struct xhci_virt_device *virt_dev;
+	struct xhci_input_control_ctx *ctrl_ctx;
+	unsigned int ep_index;
+	unsigned int ep_state;
+	u32 add_flags, drop_flags;
+
+	virt_dev = xhci->devs[slot_id];
+	if (handle_cmd_in_cmd_wait_list(xhci, virt_dev, event))
+		return;
+	/*
+	 * Configure endpoint commands can come from the USB core
+	 * configuration or alt setting changes, or because the HW
+	 * needed an extra configure endpoint command after a reset
+	 * endpoint command or streams were being configured.
+	 * If the command was for a halted endpoint, the xHCI driver
+	 * is not waiting on the configure endpoint command.
+	 */
+	ctrl_ctx = xhci_get_input_control_ctx(xhci, virt_dev->in_ctx);
+	if (!ctrl_ctx) {
+		xhci_warn(xhci, "Could not get input context, bad type.\n");
+		return;
+	}
+
+	add_flags = le32_to_cpu(ctrl_ctx->add_flags);
+	drop_flags = le32_to_cpu(ctrl_ctx->drop_flags);
+	/* Input ctx add_flags are the endpoint index plus one */
+	ep_index = xhci_last_valid_endpoint(add_flags) - 1;
+
+	/* A usb_set_interface() call directly after clearing a halted
+	 * condition may race on this quirky hardware.  Not worth
+	 * worrying about, since this is prototype hardware.  Not sure
+	 * if this will work for streams, but streams support was
+	 * untested on this prototype.
+	 */
+	if (xhci->quirks & XHCI_RESET_EP_QUIRK &&
+			ep_index != (unsigned int) -1 &&
+			add_flags - SLOT_FLAG == drop_flags) {
+		ep_state = virt_dev->eps[ep_index].ep_state;
+		if (!(ep_state & EP_HALTED))
+			goto bandwidth_change;
+		xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
+				"Completed config ep cmd - "
+				"last ep index = %d, state = %d",
+				ep_index, ep_state);
+		/* Clear internal halted state and restart ring(s) */
+		virt_dev->eps[ep_index].ep_state &= ~EP_HALTED;
+		ring_doorbell_for_active_rings(xhci, slot_id, ep_index);
+		return;
+	}
+bandwidth_change:
+	xhci_dbg_trace(xhci,  trace_xhci_dbg_context_change,
+			"Completed config ep cmd");
+	virt_dev->cmd_status = cmd_comp_code;
+	complete(&virt_dev->cmd_completion);
+	return;
+}
+
 static void xhci_handle_cmd_eval_ctx(struct xhci_hcd *xhci, int slot_id,
 		struct xhci_event_cmd *event, u32 cmd_comp_code)
 {
@@ -1459,10 +1519,6 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
 	int slot_id = TRB_TO_SLOT_ID(le32_to_cpu(event->flags));
 	u64 cmd_dma;
 	dma_addr_t cmd_dequeue_dma;
-	struct xhci_input_control_ctx *ctrl_ctx;
-	struct xhci_virt_device *virt_dev;
-	unsigned int ep_index;
-	unsigned int ep_state;
 
 	cmd_dma = le64_to_cpu(event->cmd_trb);
 	cmd_dequeue_dma = xhci_trb_virt_to_dma(xhci->cmd_ring->deq_seg,
@@ -1512,54 +1568,8 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
 		xhci_handle_cmd_disable_slot(xhci, slot_id);
 		break;
 	case TRB_TYPE(TRB_CONFIG_EP):
-		virt_dev = xhci->devs[slot_id];
-		if (handle_cmd_in_cmd_wait_list(xhci, virt_dev, event))
-			break;
-		/*
-		 * Configure endpoint commands can come from the USB core
-		 * configuration or alt setting changes, or because the HW
-		 * needed an extra configure endpoint command after a reset
-		 * endpoint command or streams were being configured.
-		 * If the command was for a halted endpoint, the xHCI driver
-		 * is not waiting on the configure endpoint command.
-		 */
-		ctrl_ctx = xhci_get_input_control_ctx(xhci,
-				virt_dev->in_ctx);
-		if (!ctrl_ctx) {
-			xhci_warn(xhci, "Could not get input context, bad type.\n");
-			break;
-		}
-		/* Input ctx add_flags are the endpoint index plus one */
-		ep_index = xhci_last_valid_endpoint(le32_to_cpu(ctrl_ctx->add_flags)) - 1;
-		/* A usb_set_interface() call directly after clearing a halted
-		 * condition may race on this quirky hardware.  Not worth
-		 * worrying about, since this is prototype hardware.  Not sure
-		 * if this will work for streams, but streams support was
-		 * untested on this prototype.
-		 */
-		if (xhci->quirks & XHCI_RESET_EP_QUIRK &&
-				ep_index != (unsigned int) -1 &&
-		    le32_to_cpu(ctrl_ctx->add_flags) - SLOT_FLAG ==
-		    le32_to_cpu(ctrl_ctx->drop_flags)) {
-			ep_state = xhci->devs[slot_id]->eps[ep_index].ep_state;
-			if (!(ep_state & EP_HALTED))
-				goto bandwidth_change;
-			xhci_dbg_trace(xhci, trace_xhci_dbg_quirks,
-					"Completed config ep cmd - "
-					"last ep index = %d, state = %d",
-					ep_index, ep_state);
-			/* Clear internal halted state and restart ring(s) */
-			xhci->devs[slot_id]->eps[ep_index].ep_state &=
-				~EP_HALTED;
-			ring_doorbell_for_active_rings(xhci, slot_id, ep_index);
-			break;
-		}
-bandwidth_change:
-		xhci_dbg_trace(xhci,  trace_xhci_dbg_context_change,
-				"Completed config ep cmd");
-		xhci->devs[slot_id]->cmd_status =
-			GET_COMP_CODE(le32_to_cpu(event->status));
-		complete(&xhci->devs[slot_id]->cmd_completion);
+		xhci_handle_cmd_config_ep(xhci, slot_id, event,
+				GET_COMP_CODE(le32_to_cpu(event->status)));
 		break;
 	case TRB_TYPE(TRB_EVAL_CONTEXT):
 		xhci_handle_cmd_eval_ctx(xhci, slot_id, event,
-- 
cgit 


From e7a79a1d6af31c050b4264099c4ab0cbee9122b8 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Mon, 9 Sep 2013 13:29:56 +0300
Subject: xhci: add variable 'cmd_comp_code' in handle_cmd_completion()

This patch adds a new variable 'cmd_comp_code' to hold the command completion
status code aiming to reduce code duplication and to improve code readability.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-ring.c | 20 ++++++++------------
 1 file changed, 8 insertions(+), 12 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 3e8053284752..6826ee1fb125 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1519,6 +1519,7 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
 	int slot_id = TRB_TO_SLOT_ID(le32_to_cpu(event->flags));
 	u64 cmd_dma;
 	dma_addr_t cmd_dequeue_dma;
+	u32 cmd_comp_code;
 
 	cmd_dma = le64_to_cpu(event->cmd_trb);
 	cmd_dequeue_dma = xhci_trb_virt_to_dma(xhci->cmd_ring->deq_seg,
@@ -1537,16 +1538,15 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
 	trace_xhci_cmd_completion(&xhci->cmd_ring->dequeue->generic,
 					(struct xhci_generic_trb *) event);
 
-	if ((GET_COMP_CODE(le32_to_cpu(event->status)) == COMP_CMD_ABORT) ||
-		(GET_COMP_CODE(le32_to_cpu(event->status)) == COMP_CMD_STOP)) {
+	cmd_comp_code = GET_COMP_CODE(le32_to_cpu(event->status));
+	if (cmd_comp_code == COMP_CMD_ABORT || cmd_comp_code == COMP_CMD_STOP) {
 		/* If the return value is 0, we think the trb pointed by
 		 * command ring dequeue pointer is a good trb. The good
 		 * trb means we don't want to cancel the trb, but it have
 		 * been stopped by host. So we should handle it normally.
 		 * Otherwise, driver should invoke inc_deq() and return.
 		 */
-		if (handle_stopped_cmd_ring(xhci,
-				GET_COMP_CODE(le32_to_cpu(event->status)))) {
+		if (handle_stopped_cmd_ring(xhci, cmd_comp_code)) {
 			inc_deq(xhci, xhci->cmd_ring);
 			return;
 		}
@@ -1561,23 +1561,19 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
 	switch (le32_to_cpu(xhci->cmd_ring->dequeue->generic.field[3])
 		& TRB_TYPE_BITMASK) {
 	case TRB_TYPE(TRB_ENABLE_SLOT):
-		xhci_handle_cmd_enable_slot(xhci, slot_id,
-				GET_COMP_CODE(le32_to_cpu(event->status)));
+		xhci_handle_cmd_enable_slot(xhci, slot_id, cmd_comp_code);
 		break;
 	case TRB_TYPE(TRB_DISABLE_SLOT):
 		xhci_handle_cmd_disable_slot(xhci, slot_id);
 		break;
 	case TRB_TYPE(TRB_CONFIG_EP):
-		xhci_handle_cmd_config_ep(xhci, slot_id, event,
-				GET_COMP_CODE(le32_to_cpu(event->status)));
+		xhci_handle_cmd_config_ep(xhci, slot_id, event, cmd_comp_code);
 		break;
 	case TRB_TYPE(TRB_EVAL_CONTEXT):
-		xhci_handle_cmd_eval_ctx(xhci, slot_id, event,
-				GET_COMP_CODE(le32_to_cpu(event->status)));
+		xhci_handle_cmd_eval_ctx(xhci, slot_id, event, cmd_comp_code);
 		break;
 	case TRB_TYPE(TRB_ADDR_DEV):
-		xhci_handle_cmd_addr_dev(xhci, slot_id,
-				GET_COMP_CODE(le32_to_cpu(event->status)));
+		xhci_handle_cmd_addr_dev(xhci, slot_id, cmd_comp_code);
 		break;
 	case TRB_TYPE(TRB_STOP_RING):
 		xhci_handle_cmd_stop_ep(xhci, xhci->cmd_ring->dequeue, event);
-- 
cgit 


From 9124b121e317f3ee3b442b0a3a508c9c13f602e2 Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Mon, 9 Sep 2013 13:29:57 +0300
Subject: xhci: add variable 'cmd_trb' in handle_cmd_completion()

This patch adds a new variable 'cmd_trb' to hold the address of the
command TRB, that is associated with the command completion event,
and to replace repetitions of xhci->cmd_ring->dequeue into the code.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-ring.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 6826ee1fb125..fd2f97c37136 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1520,10 +1520,12 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
 	u64 cmd_dma;
 	dma_addr_t cmd_dequeue_dma;
 	u32 cmd_comp_code;
+	union xhci_trb *cmd_trb;
 
 	cmd_dma = le64_to_cpu(event->cmd_trb);
+	cmd_trb = xhci->cmd_ring->dequeue;
 	cmd_dequeue_dma = xhci_trb_virt_to_dma(xhci->cmd_ring->deq_seg,
-			xhci->cmd_ring->dequeue);
+			cmd_trb);
 	/* Is the command ring deq ptr out of sync with the deq seg ptr? */
 	if (cmd_dequeue_dma == 0) {
 		xhci->error_bitmask |= 1 << 4;
@@ -1535,8 +1537,7 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
 		return;
 	}
 
-	trace_xhci_cmd_completion(&xhci->cmd_ring->dequeue->generic,
-					(struct xhci_generic_trb *) event);
+	trace_xhci_cmd_completion(cmd_trb, (struct xhci_generic_trb *) event);
 
 	cmd_comp_code = GET_COMP_CODE(le32_to_cpu(event->status));
 	if (cmd_comp_code == COMP_CMD_ABORT || cmd_comp_code == COMP_CMD_STOP) {
@@ -1558,7 +1559,7 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
 			return;
 	}
 
-	switch (le32_to_cpu(xhci->cmd_ring->dequeue->generic.field[3])
+	switch (le32_to_cpu(cmd_trb->generic.field[3])
 		& TRB_TYPE_BITMASK) {
 	case TRB_TYPE(TRB_ENABLE_SLOT):
 		xhci_handle_cmd_enable_slot(xhci, slot_id, cmd_comp_code);
@@ -1576,19 +1577,19 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
 		xhci_handle_cmd_addr_dev(xhci, slot_id, cmd_comp_code);
 		break;
 	case TRB_TYPE(TRB_STOP_RING):
-		xhci_handle_cmd_stop_ep(xhci, xhci->cmd_ring->dequeue, event);
+		xhci_handle_cmd_stop_ep(xhci, cmd_trb, event);
 		break;
 	case TRB_TYPE(TRB_SET_DEQ):
-		xhci_handle_cmd_set_deq(xhci, event, xhci->cmd_ring->dequeue);
+		xhci_handle_cmd_set_deq(xhci, event, cmd_trb);
 		break;
 	case TRB_TYPE(TRB_CMD_NOOP):
 		break;
 	case TRB_TYPE(TRB_RESET_EP):
-		xhci_handle_cmd_reset_ep(xhci, event, xhci->cmd_ring->dequeue);
+		xhci_handle_cmd_reset_ep(xhci, event, cmd_trb);
 		break;
 	case TRB_TYPE(TRB_RESET_DEV):
 		WARN_ON(slot_id != TRB_TO_SLOT_ID(
-				le32_to_cpu(xhci->cmd_ring->dequeue->generic.field[3])));
+				le32_to_cpu(cmd_trb->generic.field[3])));
 		xhci_handle_cmd_reset_dev(xhci, slot_id, event);
 		break;
 	case TRB_TYPE(TRB_NEC_GET_FW):
-- 
cgit 


From b54fc46dce0c45ce42a012f733ab2abf4b9be5fe Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Mon, 9 Sep 2013 13:29:58 +0300
Subject: xhci: add variable 'cmd_type' in handle_cmd_completion()

This patch adds a new variable 'cmd_type' to hold the command type so that
switch cases can be simplified by removing TRB_TYPE() macro improving
code readability.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-ring.c | 27 ++++++++++++++-------------
 1 file changed, 14 insertions(+), 13 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index fd2f97c37136..e0b59208f231 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1521,6 +1521,7 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
 	dma_addr_t cmd_dequeue_dma;
 	u32 cmd_comp_code;
 	union xhci_trb *cmd_trb;
+	u32 cmd_type;
 
 	cmd_dma = le64_to_cpu(event->cmd_trb);
 	cmd_trb = xhci->cmd_ring->dequeue;
@@ -1559,40 +1560,40 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
 			return;
 	}
 
-	switch (le32_to_cpu(cmd_trb->generic.field[3])
-		& TRB_TYPE_BITMASK) {
-	case TRB_TYPE(TRB_ENABLE_SLOT):
+	cmd_type = TRB_FIELD_TO_TYPE(le32_to_cpu(cmd_trb->generic.field[3]));
+	switch (cmd_type) {
+	case TRB_ENABLE_SLOT:
 		xhci_handle_cmd_enable_slot(xhci, slot_id, cmd_comp_code);
 		break;
-	case TRB_TYPE(TRB_DISABLE_SLOT):
+	case TRB_DISABLE_SLOT:
 		xhci_handle_cmd_disable_slot(xhci, slot_id);
 		break;
-	case TRB_TYPE(TRB_CONFIG_EP):
+	case TRB_CONFIG_EP:
 		xhci_handle_cmd_config_ep(xhci, slot_id, event, cmd_comp_code);
 		break;
-	case TRB_TYPE(TRB_EVAL_CONTEXT):
+	case TRB_EVAL_CONTEXT:
 		xhci_handle_cmd_eval_ctx(xhci, slot_id, event, cmd_comp_code);
 		break;
-	case TRB_TYPE(TRB_ADDR_DEV):
+	case TRB_ADDR_DEV:
 		xhci_handle_cmd_addr_dev(xhci, slot_id, cmd_comp_code);
 		break;
-	case TRB_TYPE(TRB_STOP_RING):
+	case TRB_STOP_RING:
 		xhci_handle_cmd_stop_ep(xhci, cmd_trb, event);
 		break;
-	case TRB_TYPE(TRB_SET_DEQ):
+	case TRB_SET_DEQ:
 		xhci_handle_cmd_set_deq(xhci, event, cmd_trb);
 		break;
-	case TRB_TYPE(TRB_CMD_NOOP):
+	case TRB_CMD_NOOP:
 		break;
-	case TRB_TYPE(TRB_RESET_EP):
+	case TRB_RESET_EP:
 		xhci_handle_cmd_reset_ep(xhci, event, cmd_trb);
 		break;
-	case TRB_TYPE(TRB_RESET_DEV):
+	case TRB_RESET_DEV:
 		WARN_ON(slot_id != TRB_TO_SLOT_ID(
 				le32_to_cpu(cmd_trb->generic.field[3])));
 		xhci_handle_cmd_reset_dev(xhci, slot_id, event);
 		break;
-	case TRB_TYPE(TRB_NEC_GET_FW):
+	case TRB_NEC_GET_FW:
 		xhci_handle_cmd_nec_get_fw(xhci, event);
 		break;
 	default:
-- 
cgit 


From bc752bde108400c80735ef72987acbca0eecefda Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Mon, 9 Sep 2013 13:29:59 +0300
Subject: xhci: replace 'xhci->cmd_ring->dequeue' with 'trb' in stop_ep cmd
 handler

This patch replaces 'xhci->cmd_ring->dequeue' with 'trb', the address of
the command TRB, since it is available to reduce line length.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-ring.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index e0b59208f231..61243f59f914 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -779,10 +779,8 @@ static void xhci_handle_cmd_stop_ep(struct xhci_hcd *xhci,
 
 	struct xhci_dequeue_state deq_state;
 
-	if (unlikely(TRB_TO_SUSPEND_PORT(
-			     le32_to_cpu(xhci->cmd_ring->dequeue->generic.field[3])))) {
-		slot_id = TRB_TO_SLOT_ID(
-			le32_to_cpu(xhci->cmd_ring->dequeue->generic.field[3]));
+	if (unlikely(TRB_TO_SUSPEND_PORT(le32_to_cpu(trb->generic.field[3])))) {
+		slot_id = TRB_TO_SLOT_ID(le32_to_cpu(trb->generic.field[3]));
 		virt_dev = xhci->devs[slot_id];
 		if (virt_dev)
 			handle_cmd_in_cmd_wait_list(xhci, virt_dev,
-- 
cgit 


From b8200c9479b8046a16a71648607fa796b548218b Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Mon, 9 Sep 2013 13:30:00 +0300
Subject: xhci: add argument 'slot_id' in stop_ep, set_deq and reset_ep cmd
 handlers

Since the Slot ID field in the command completion event matches the Slot ID
field in the associated command TRB for the Stop Endpoint, Set Dequeue Pointer
and Reset Endpoint commands, this patch adds in the handlers of their
completion events a 'slot_id' argument and removes the slot id calculation
in each of them.
Also, a WARN_ON() was added in case the slot ids reported by command TRB and
event TRB differ (although according to xhci spec rev1.0 that should not happen)

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-ring.c | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 61243f59f914..b98c9852172a 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -765,10 +765,9 @@ static void xhci_giveback_urb_in_irq(struct xhci_hcd *xhci,
  *  2. Otherwise, we turn all the TRBs in the TD into No-op TRBs (with the chain
  *     bit cleared) so that the HW will skip over them.
  */
-static void xhci_handle_cmd_stop_ep(struct xhci_hcd *xhci,
+static void xhci_handle_cmd_stop_ep(struct xhci_hcd *xhci, int slot_id,
 		union xhci_trb *trb, struct xhci_event_cmd *event)
 {
-	unsigned int slot_id;
 	unsigned int ep_index;
 	struct xhci_virt_device *virt_dev;
 	struct xhci_ring *ep_ring;
@@ -780,7 +779,6 @@ static void xhci_handle_cmd_stop_ep(struct xhci_hcd *xhci,
 	struct xhci_dequeue_state deq_state;
 
 	if (unlikely(TRB_TO_SUSPEND_PORT(le32_to_cpu(trb->generic.field[3])))) {
-		slot_id = TRB_TO_SLOT_ID(le32_to_cpu(trb->generic.field[3]));
 		virt_dev = xhci->devs[slot_id];
 		if (virt_dev)
 			handle_cmd_in_cmd_wait_list(xhci, virt_dev,
@@ -793,7 +791,6 @@ static void xhci_handle_cmd_stop_ep(struct xhci_hcd *xhci,
 	}
 
 	memset(&deq_state, 0, sizeof(deq_state));
-	slot_id = TRB_TO_SLOT_ID(le32_to_cpu(trb->generic.field[3]));
 	ep_index = TRB_TO_EP_INDEX(le32_to_cpu(trb->generic.field[3]));
 	ep = &xhci->devs[slot_id]->eps[ep_index];
 
@@ -1075,10 +1072,9 @@ static void update_ring_for_set_deq_completion(struct xhci_hcd *xhci,
  * endpoint doorbell to restart the ring, but only if there aren't more
  * cancellations pending.
  */
-static void xhci_handle_cmd_set_deq(struct xhci_hcd *xhci,
+static void xhci_handle_cmd_set_deq(struct xhci_hcd *xhci, int slot_id,
 		struct xhci_event_cmd *event, union xhci_trb *trb)
 {
-	unsigned int slot_id;
 	unsigned int ep_index;
 	unsigned int stream_id;
 	struct xhci_ring *ep_ring;
@@ -1086,7 +1082,6 @@ static void xhci_handle_cmd_set_deq(struct xhci_hcd *xhci,
 	struct xhci_ep_ctx *ep_ctx;
 	struct xhci_slot_ctx *slot_ctx;
 
-	slot_id = TRB_TO_SLOT_ID(le32_to_cpu(trb->generic.field[3]));
 	ep_index = TRB_TO_EP_INDEX(le32_to_cpu(trb->generic.field[3]));
 	stream_id = TRB_TO_STREAM_ID(le32_to_cpu(trb->generic.field[2]));
 	dev = xhci->devs[slot_id];
@@ -1168,13 +1163,11 @@ static void xhci_handle_cmd_set_deq(struct xhci_hcd *xhci,
 	ring_doorbell_for_active_rings(xhci, slot_id, ep_index);
 }
 
-static void xhci_handle_cmd_reset_ep(struct xhci_hcd *xhci,
+static void xhci_handle_cmd_reset_ep(struct xhci_hcd *xhci, int slot_id,
 		struct xhci_event_cmd *event, union xhci_trb *trb)
 {
-	int slot_id;
 	unsigned int ep_index;
 
-	slot_id = TRB_TO_SLOT_ID(le32_to_cpu(trb->generic.field[3]));
 	ep_index = TRB_TO_EP_INDEX(le32_to_cpu(trb->generic.field[3]));
 	/* This command will only fail if the endpoint wasn't halted,
 	 * but we don't care.
@@ -1576,15 +1569,21 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
 		xhci_handle_cmd_addr_dev(xhci, slot_id, cmd_comp_code);
 		break;
 	case TRB_STOP_RING:
-		xhci_handle_cmd_stop_ep(xhci, cmd_trb, event);
+		WARN_ON(slot_id != TRB_TO_SLOT_ID(
+				le32_to_cpu(cmd_trb->generic.field[3])));
+		xhci_handle_cmd_stop_ep(xhci, slot_id, cmd_trb, event);
 		break;
 	case TRB_SET_DEQ:
-		xhci_handle_cmd_set_deq(xhci, event, cmd_trb);
+		WARN_ON(slot_id != TRB_TO_SLOT_ID(
+				le32_to_cpu(cmd_trb->generic.field[3])));
+		xhci_handle_cmd_set_deq(xhci, slot_id, event, cmd_trb);
 		break;
 	case TRB_CMD_NOOP:
 		break;
 	case TRB_RESET_EP:
-		xhci_handle_cmd_reset_ep(xhci, event, cmd_trb);
+		WARN_ON(slot_id != TRB_TO_SLOT_ID(
+				le32_to_cpu(cmd_trb->generic.field[3])));
+		xhci_handle_cmd_reset_ep(xhci, slot_id, event, cmd_trb);
 		break;
 	case TRB_RESET_DEV:
 		WARN_ON(slot_id != TRB_TO_SLOT_ID(
-- 
cgit 


From c69a059783b241c42188d472e2e9460d3cd4a4cc Mon Sep 17 00:00:00 2001
From: Xenia Ragiadakou <burzalodowa@gmail.com>
Date: Mon, 9 Sep 2013 13:30:01 +0300
Subject: xhci: replace 'event' with 'cmd_comp_code' in set_deq and reset_ep
 handlers

This patch replaces the 'event' argument of xhci_handle_cmd_set_deq() and
xhci_handle_cmd_reset_ep(), which is used to retrieve the command completion
status code, with the cmd_comp_code directly, since it is available.

Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Acked-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-ring.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index b98c9852172a..e57163f952ed 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1073,7 +1073,7 @@ static void update_ring_for_set_deq_completion(struct xhci_hcd *xhci,
  * cancellations pending.
  */
 static void xhci_handle_cmd_set_deq(struct xhci_hcd *xhci, int slot_id,
-		struct xhci_event_cmd *event, union xhci_trb *trb)
+		union xhci_trb *trb, u32 cmd_comp_code)
 {
 	unsigned int ep_index;
 	unsigned int stream_id;
@@ -1099,11 +1099,11 @@ static void xhci_handle_cmd_set_deq(struct xhci_hcd *xhci, int slot_id,
 	ep_ctx = xhci_get_ep_ctx(xhci, dev->out_ctx, ep_index);
 	slot_ctx = xhci_get_slot_ctx(xhci, dev->out_ctx);
 
-	if (GET_COMP_CODE(le32_to_cpu(event->status)) != COMP_SUCCESS) {
+	if (cmd_comp_code != COMP_SUCCESS) {
 		unsigned int ep_state;
 		unsigned int slot_state;
 
-		switch (GET_COMP_CODE(le32_to_cpu(event->status))) {
+		switch (cmd_comp_code) {
 		case COMP_TRB_ERR:
 			xhci_warn(xhci, "WARN Set TR Deq Ptr cmd invalid because "
 					"of stream ID configuration\n");
@@ -1126,7 +1126,7 @@ static void xhci_handle_cmd_set_deq(struct xhci_hcd *xhci, int slot_id,
 		default:
 			xhci_warn(xhci, "WARN Set TR Deq Ptr cmd with unknown "
 					"completion code of %u.\n",
-				  GET_COMP_CODE(le32_to_cpu(event->status)));
+				  cmd_comp_code);
 			break;
 		}
 		/* OK what do we do now?  The endpoint state is hosed, and we
@@ -1164,7 +1164,7 @@ static void xhci_handle_cmd_set_deq(struct xhci_hcd *xhci, int slot_id,
 }
 
 static void xhci_handle_cmd_reset_ep(struct xhci_hcd *xhci, int slot_id,
-		struct xhci_event_cmd *event, union xhci_trb *trb)
+		union xhci_trb *trb, u32 cmd_comp_code)
 {
 	unsigned int ep_index;
 
@@ -1173,8 +1173,7 @@ static void xhci_handle_cmd_reset_ep(struct xhci_hcd *xhci, int slot_id,
 	 * but we don't care.
 	 */
 	xhci_dbg_trace(xhci, trace_xhci_dbg_reset_ep,
-		"Ignoring reset ep completion code of %u",
-		 GET_COMP_CODE(le32_to_cpu(event->status)));
+		"Ignoring reset ep completion code of %u", cmd_comp_code);
 
 	/* HW with the reset endpoint quirk needs to have a configure endpoint
 	 * command complete before the endpoint can be used.  Queue that here
@@ -1576,14 +1575,14 @@ static void handle_cmd_completion(struct xhci_hcd *xhci,
 	case TRB_SET_DEQ:
 		WARN_ON(slot_id != TRB_TO_SLOT_ID(
 				le32_to_cpu(cmd_trb->generic.field[3])));
-		xhci_handle_cmd_set_deq(xhci, slot_id, event, cmd_trb);
+		xhci_handle_cmd_set_deq(xhci, slot_id, cmd_trb, cmd_comp_code);
 		break;
 	case TRB_CMD_NOOP:
 		break;
 	case TRB_RESET_EP:
 		WARN_ON(slot_id != TRB_TO_SLOT_ID(
 				le32_to_cpu(cmd_trb->generic.field[3])));
-		xhci_handle_cmd_reset_ep(xhci, slot_id, event, cmd_trb);
+		xhci_handle_cmd_reset_ep(xhci, slot_id, cmd_trb, cmd_comp_code);
 		break;
 	case TRB_RESET_DEV:
 		WARN_ON(slot_id != TRB_TO_SLOT_ID(
-- 
cgit 


From fbfdb6ed6265bf62b326b8bd254994ae98cfdb46 Mon Sep 17 00:00:00 2001
From: Jan Luebbe <jlu@pengutronix.de>
Date: Mon, 14 Oct 2013 17:14:59 +0200
Subject: misc/at25, dt: support probing at25 SPI EEPROM from DT

The commit d6ae0d578d24303941c1424b049d2cae28277666 introduced devicetree
binding documentation for this driver, but the driver itself does not yet
support the documented compatible entry. Fix this by adding the documented
entry to the driver.

Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/eeprom/at25.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c
index 840b3594a5ae..4f3bca1003a1 100644
--- a/drivers/misc/eeprom/at25.c
+++ b/drivers/misc/eeprom/at25.c
@@ -462,10 +462,17 @@ static int at25_remove(struct spi_device *spi)
 
 /*-------------------------------------------------------------------------*/
 
+static const struct of_device_id at25_of_match[] = {
+	{ .compatible = "atmel,at25", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, at25_of_match);
+
 static struct spi_driver at25_driver = {
 	.driver = {
 		.name		= "at25",
 		.owner		= THIS_MODULE,
+		.of_match_table = at25_of_match,
 	},
 	.probe		= at25_probe,
 	.remove		= at25_remove,
-- 
cgit 


From 838b3a6d62413b336f3dde15ecff161070358957 Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Wed, 16 Oct 2013 12:09:43 +0300
Subject: mei: me: add Lynx Point Wellsburg work station device id

add missing device id for LPT based work station

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/hw-me-regs.h | 1 +
 drivers/misc/mei/pci-me.c     | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/misc/mei/hw-me-regs.h b/drivers/misc/mei/hw-me-regs.h
index 6a203b6e8346..6c0fde55270d 100644
--- a/drivers/misc/mei/hw-me-regs.h
+++ b/drivers/misc/mei/hw-me-regs.h
@@ -110,6 +110,7 @@
 #define MEI_DEV_ID_PPT_3      0x1DBA  /* Panther Point */
 
 #define MEI_DEV_ID_LPT        0x8C3A  /* Lynx Point */
+#define MEI_DEV_ID_LPT_W      0x8D3A  /* Lynx Point - Wellsburg */
 #define MEI_DEV_ID_LPT_LP     0x9C3A  /* Lynx Point LP */
 /*
  * MEI HW Section
diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index 1b8a4c6d0cf8..d2ea9ffbc77a 100644
--- a/drivers/misc/mei/pci-me.c
+++ b/drivers/misc/mei/pci-me.c
@@ -77,6 +77,7 @@ static DEFINE_PCI_DEVICE_TABLE(mei_me_pci_tbl) = {
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_PPT_2)},
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_PPT_3)},
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_W)},
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_LPT_LP)},
 
 	/* required last entry */
-- 
cgit 


From 158f0bb005fc7fdb1a7a968eb61100989f5f7322 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 05:53:47 +0200
Subject: hpet: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/char/hpet.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index c8f43295d42a..dca5834685cf 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -486,8 +486,7 @@ static int hpet_ioctl_ieon(struct hpet_dev *devp)
 		}
 
 		sprintf(devp->hd_name, "hpet%d", (int)(devp - hpetp->hp_dev));
-		irq_flags = devp->hd_flags & HPET_SHARED_IRQ
-						? IRQF_SHARED : IRQF_DISABLED;
+		irq_flags = devp->hd_flags & HPET_SHARED_IRQ ? IRQF_SHARED : 0;
 		if (request_irq(irq, hpet_interrupt, irq_flags,
 				devp->hd_name, (void *)devp)) {
 			printk(KERN_ERR "hpet: IRQ %d is not free\n", irq);
-- 
cgit 


From d88ed628f83449bd6c1e9f37bfde08088823bde3 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 06:14:42 +0200
Subject: various char drivers: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/char/nwbutton.c   | 2 +-
 drivers/char/rtc.c        | 5 ++---
 drivers/char/snsc.c       | 3 +--
 drivers/char/snsc_event.c | 3 +--
 4 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/char/nwbutton.c b/drivers/char/nwbutton.c
index cfdfe493c6af..1fd00dc06897 100644
--- a/drivers/char/nwbutton.c
+++ b/drivers/char/nwbutton.c
@@ -220,7 +220,7 @@ static int __init nwbutton_init(void)
 		return -EBUSY;
 	}
 
-	if (request_irq (IRQ_NETWINDER_BUTTON, button_handler, IRQF_DISABLED,
+	if (request_irq (IRQ_NETWINDER_BUTTON, button_handler, 0,
 			"nwbutton", NULL)) {
 		printk (KERN_WARNING "nwbutton: IRQ %d is not free.\n",
 				IRQ_NETWINDER_BUTTON);
diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
index c0cbbd429bdc..35259961cc38 100644
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -227,7 +227,7 @@ static inline unsigned char rtc_is_updating(void)
 
 #ifdef RTC_IRQ
 /*
- *	A very tiny interrupt handler. It runs with IRQF_DISABLED set,
+ *	A very tiny interrupt handler. It runs with interrupts disabled,
  *	but there is possibility of conflicting with the set_rtc_mmss()
  *	call (the rtc irq and the timer irq can easily run at the same
  *	time in two different CPUs). So we need to serialize
@@ -1040,8 +1040,7 @@ no_irq:
 		rtc_int_handler_ptr = rtc_interrupt;
 	}
 
-	if (request_irq(RTC_IRQ, rtc_int_handler_ptr, IRQF_DISABLED,
-			"rtc", NULL)) {
+	if (request_irq(RTC_IRQ, rtc_int_handler_ptr, 0, "rtc", NULL)) {
 		/* Yeah right, seeing as irq 8 doesn't even hit the bus. */
 		rtc_has_irq = 0;
 		printk(KERN_ERR "rtc: IRQ %d is not free.\n", RTC_IRQ);
diff --git a/drivers/char/snsc.c b/drivers/char/snsc.c
index 5816b39ff5a9..8bab59292a0d 100644
--- a/drivers/char/snsc.c
+++ b/drivers/char/snsc.c
@@ -108,8 +108,7 @@ scdrv_open(struct inode *inode, struct file *file)
 	/* hook this subchannel up to the system controller interrupt */
 	mutex_lock(&scdrv_mutex);
 	rv = request_irq(SGI_UART_VECTOR, scdrv_interrupt,
-			 IRQF_SHARED | IRQF_DISABLED,
-			 SYSCTL_BASENAME, sd);
+			 IRQF_SHARED, SYSCTL_BASENAME, sd);
 	if (rv) {
 		ia64_sn_irtr_close(sd->sd_nasid, sd->sd_subch);
 		kfree(sd);
diff --git a/drivers/char/snsc_event.c b/drivers/char/snsc_event.c
index ee156948b9f8..59bcefd6ec7c 100644
--- a/drivers/char/snsc_event.c
+++ b/drivers/char/snsc_event.c
@@ -292,8 +292,7 @@ scdrv_event_init(struct sysctl_data_s *scd)
 
 	/* hook event subchannel up to the system controller interrupt */
 	rv = request_irq(SGI_UART_VECTOR, scdrv_event_interrupt,
-			 IRQF_SHARED | IRQF_DISABLED,
-			 "system controller events", event_sd);
+			 IRQF_SHARED, "system controller events", event_sd);
 	if (rv) {
 		printk(KERN_WARNING "%s: irq request failed (%d)\n",
 		       __func__, rv);
-- 
cgit 


From 9de14f1c45351b6681a9721142850bca1cd20372 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 06:17:25 +0200
Subject: tlclk: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/char/tlclk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/tlclk.c b/drivers/char/tlclk.c
index e95e0ab0bd87..100cd1de9939 100644
--- a/drivers/char/tlclk.c
+++ b/drivers/char/tlclk.c
@@ -222,7 +222,7 @@ static int tlclk_open(struct inode *inode, struct file *filp)
 	/* This device is wired through the FPGA IO space of the ATCA blade
 	 * we can't share this IRQ */
 	result = request_irq(telclk_interrupt, &tlclk_interrupt,
-			     IRQF_DISABLED, "telco_clock", tlclk_interrupt);
+			     0, "telco_clock", tlclk_interrupt);
 	if (result == -EBUSY)
 		printk(KERN_ERR "tlclk: Interrupt can't be reserved.\n");
 	else
-- 
cgit 


From b09534d3d8d85082b3c5b5803607463bd7e40194 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 08:13:31 +0200
Subject: misc: arm-charlcd: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/arm-charlcd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/arm-charlcd.c b/drivers/misc/arm-charlcd.c
index 1256a4bf1c04..b7ebf8021d99 100644
--- a/drivers/misc/arm-charlcd.c
+++ b/drivers/misc/arm-charlcd.c
@@ -297,7 +297,7 @@ static int __init charlcd_probe(struct platform_device *pdev)
 	lcd->irq = platform_get_irq(pdev, 0);
 	/* If no IRQ is supplied, we'll survive without it */
 	if (lcd->irq >= 0) {
-		if (request_irq(lcd->irq, charlcd_interrupt, IRQF_DISABLED,
+		if (request_irq(lcd->irq, charlcd_interrupt, 0,
 				DRIVERNAME, lcd)) {
 			ret = -EIO;
 			goto out_no_irq;
-- 
cgit 


From bb9da88d7ae2f28eafbe70b7e27721cc3f7b2d43 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 08:16:07 +0200
Subject: misc: phantom: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/phantom.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/phantom.c b/drivers/misc/phantom.c
index 68b7c773d2cf..30754927fd80 100644
--- a/drivers/misc/phantom.c
+++ b/drivers/misc/phantom.c
@@ -395,7 +395,7 @@ static int phantom_probe(struct pci_dev *pdev,
 	iowrite32(0, pht->caddr + PHN_IRQCTL);
 	ioread32(pht->caddr + PHN_IRQCTL); /* PCI posting */
 	retval = request_irq(pdev->irq, phantom_isr,
-			IRQF_SHARED | IRQF_DISABLED, "phantom", pht);
+			IRQF_SHARED, "phantom", pht);
 	if (retval) {
 		dev_err(&pdev->dev, "can't establish ISR\n");
 		goto err_unmo;
-- 
cgit 


From 813b4650ddf0fae2e8f0faa140eb63b5265f3701 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 09:23:27 +0200
Subject: w1: ds1wm: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/w1/masters/ds1wm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/w1/masters/ds1wm.c b/drivers/w1/masters/ds1wm.c
index 96cab6ac2b4e..41613f92a723 100644
--- a/drivers/w1/masters/ds1wm.c
+++ b/drivers/w1/masters/ds1wm.c
@@ -498,7 +498,7 @@ static int ds1wm_probe(struct platform_device *pdev)
 		irq_set_irq_type(ds1wm_data->irq, IRQ_TYPE_EDGE_FALLING);
 
 	ret = devm_request_irq(&pdev->dev, ds1wm_data->irq, ds1wm_isr,
-			IRQF_DISABLED | IRQF_SHARED, "ds1wm", ds1wm_data);
+			IRQF_SHARED, "ds1wm", ds1wm_data);
 	if (ret)
 		return ret;
 
-- 
cgit 


From fe576a580f2a62c43bb81b18700576a66b332c8f Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 09:20:05 +0200
Subject: w1: omap-hdq: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/w1/masters/omap_hdq.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/w1/masters/omap_hdq.c b/drivers/w1/masters/omap_hdq.c
index 6e94d8dd3d00..9900e8ec7393 100644
--- a/drivers/w1/masters/omap_hdq.c
+++ b/drivers/w1/masters/omap_hdq.c
@@ -577,8 +577,7 @@ static int omap_hdq_probe(struct platform_device *pdev)
 		goto err_irq;
 	}
 
-	ret = devm_request_irq(dev, irq, hdq_isr, IRQF_DISABLED,
-			"omap_hdq", hdq_data);
+	ret = devm_request_irq(dev, irq, hdq_isr, 0, "omap_hdq", hdq_data);
 	if (ret < 0) {
 		dev_dbg(&pdev->dev, "could not request irq\n");
 		goto err_irq;
-- 
cgit 


From f84cdf65a79b808217d9e8b82ea12d170cf66b3d Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Tue, 15 Oct 2013 21:00:09 +0100
Subject: staging: vt6656: rxtx.c s_bPacketToWirelessUsb set fallback tx rates

Set the two TX fall back rates in s_bPacketToWirelessUsb and
pass to private area of driver in variables tx_rate_fb0
and tx_rate_fb1 from the wFB_Opt0/wFB_Opt1 array.

Apply these rates were needed in the TX structure and
remove byFBOption settings in s_uGetRTSCTSDuration.

This greatly simplifies s_uGetRTSCTSDuration and
more future flexibility of setting rates from
upper levels of driver.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/device.h |  3 ++
 drivers/staging/vt6656/rxtx.c   | 99 +++++++++++++++++++----------------------
 2 files changed, 49 insertions(+), 53 deletions(-)

diff --git a/drivers/staging/vt6656/device.h b/drivers/staging/vt6656/device.h
index 95b181d6c5b8..62b7de19b371 100644
--- a/drivers/staging/vt6656/device.h
+++ b/drivers/staging/vt6656/device.h
@@ -579,6 +579,9 @@ struct vnt_private {
 	u8 abyOFDMAPwrTbl[42];
 
 	u16 wCurrentRate;
+	u16 tx_rate_fb0;
+	u16 tx_rate_fb1;
+
 	u16 wRTSThreshold;
 	u16 wFragmentationThreshold;
 	u8 byShortRetryLimit;
diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index 821b2e16b6fa..340473075186 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -450,55 +450,37 @@ static u16 s_uGetRTSCTSDuration(struct vnt_private *pDevice, u8 byDurType,
 
     case RTSDUR_BA_F0: //RTSDuration_ba_f0
         uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
-        if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
-            uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
-        } else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
-            uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
-        }
+	uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
+			byPktType, cbFrameLength, wRate, bNeedAck);
         break;
 
     case RTSDUR_AA_F0: //RTSDuration_aa_f0
         uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
-        if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
-            uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
-        } else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
-            uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
-        }
+	uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
+			byPktType, cbFrameLength, wRate, bNeedAck);
         break;
 
     case RTSDUR_BA_F1: //RTSDuration_ba_f1
         uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
-        if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
-            uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
-        } else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
-            uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
-        }
+	uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
+		byPktType, cbFrameLength, wRate, bNeedAck);
         break;
 
     case RTSDUR_AA_F1: //RTSDuration_aa_f1
         uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
-        if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
-            uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
-        } else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
-            uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
-        }
-        break;
+	uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
+				byPktType, cbFrameLength, wRate, bNeedAck);
+	break;
 
     case CTSDUR_BA_F0: //CTSDuration_ba_f0
-        if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
-            uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE0][wRate-RATE_18M], bNeedAck);
-        } else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
-            uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE0][wRate-RATE_18M], bNeedAck);
-        }
-        break;
+	uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
+				byPktType, cbFrameLength, wRate, bNeedAck);
+	break;
 
     case CTSDUR_BA_F1: //CTSDuration_ba_f1
-        if ((byFBOption == AUTO_FB_0) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
-            uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt0[FB_RATE1][wRate-RATE_18M], bNeedAck);
-        } else if ((byFBOption == AUTO_FB_1) && (wRate >= RATE_18M) && (wRate <=RATE_54M)) {
-            uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wFB_Opt1[FB_RATE1][wRate-RATE_18M], bNeedAck);
-        }
-        break;
+	uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
+				byPktType, cbFrameLength, wRate, bNeedAck);
+	break;
 
     default:
         break;
@@ -648,13 +630,13 @@ static u16 vnt_rxtx_rts_g_fb_head(struct vnt_private *priv,
 
 
 	buf->wRTSDuration_ba_f0 = s_uGetRTSCTSDuration(priv, RTSDUR_BA_F0,
-		frame_len, pkt_type, current_rate, need_ack, fb_option);
+		frame_len, pkt_type, priv->tx_rate_fb0, need_ack, fb_option);
 	buf->wRTSDuration_aa_f0 = s_uGetRTSCTSDuration(priv, RTSDUR_AA_F0,
-		frame_len, pkt_type, current_rate, need_ack, fb_option);
+		frame_len, pkt_type, priv->tx_rate_fb0, need_ack, fb_option);
 	buf->wRTSDuration_ba_f1 = s_uGetRTSCTSDuration(priv, RTSDUR_BA_F1,
-		frame_len, pkt_type, current_rate, need_ack, fb_option);
+		frame_len, pkt_type, priv->tx_rate_fb1, need_ack, fb_option);
 	buf->wRTSDuration_aa_f1 = s_uGetRTSCTSDuration(priv, RTSDUR_AA_F1,
-		frame_len, pkt_type, current_rate, need_ack, fb_option);
+		frame_len, pkt_type, priv->tx_rate_fb1, need_ack, fb_option);
 
 	vnt_fill_ieee80211_rts(priv, &buf->data, eth_hdr, buf->wDuration_aa);
 
@@ -695,10 +677,10 @@ static u16 vnt_rxtx_rts_a_fb_head(struct vnt_private *priv,
 		pkt_type, current_rate, need_ack, fb_option);
 
 	buf->wRTSDuration_f0 = s_uGetRTSCTSDuration(priv, RTSDUR_AA_F0,
-		frame_len, pkt_type, current_rate, need_ack, fb_option);
+		frame_len, pkt_type, priv->tx_rate_fb0, need_ack, fb_option);
 
 	buf->wRTSDuration_f1 = s_uGetRTSCTSDuration(priv, RTSDUR_AA_F1,
-		frame_len, pkt_type, current_rate, need_ack, fb_option);
+		frame_len, pkt_type, priv->tx_rate_fb1, need_ack, fb_option);
 
 	vnt_fill_ieee80211_rts(priv, &buf->data, eth_hdr, buf->wDuration);
 
@@ -767,12 +749,12 @@ static u16 s_vFillCTSHead(struct vnt_private *pDevice, u32 uDMAIdx,
 			wCurrentRate, bNeedAck, byFBOption);
 		/* Get CTSDuration_ba_f0 */
 		pBuf->wCTSDuration_ba_f0 = s_uGetRTSCTSDuration(pDevice,
-			CTSDUR_BA_F0, cbFrameLength, byPktType, wCurrentRate,
-			bNeedAck, byFBOption);
+			CTSDUR_BA_F0, cbFrameLength, byPktType,
+			pDevice->tx_rate_fb0, bNeedAck, byFBOption);
 		/* Get CTSDuration_ba_f1 */
 		pBuf->wCTSDuration_ba_f1 = s_uGetRTSCTSDuration(pDevice,
-			CTSDUR_BA_F1, cbFrameLength, byPktType, wCurrentRate,
-			bNeedAck, byFBOption);
+			CTSDUR_BA_F1, cbFrameLength, byPktType,
+			pDevice->tx_rate_fb1, bNeedAck, byFBOption);
 		/* Get CTS Frame body */
 		pBuf->data.duration = pBuf->wDuration_ba;
 		pBuf->data.frame_control = TYPE_CTL_CTS;
@@ -1076,16 +1058,27 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
         pTxBufHead->wFIFOCtl |=	FIFOCTL_GRPACK;
     }
 
-    //Set Auto Fallback Ctl
-    if (wCurrentRate >= RATE_18M) {
-        if (pDevice->byAutoFBCtrl == AUTO_FB_0) {
-            pTxBufHead->wFIFOCtl |= FIFOCTL_AUTO_FB_0;
-            byFBOption = AUTO_FB_0;
-        } else if (pDevice->byAutoFBCtrl == AUTO_FB_1) {
-            pTxBufHead->wFIFOCtl |= FIFOCTL_AUTO_FB_1;
-            byFBOption = AUTO_FB_1;
-        }
-    }
+	/* Set Auto Fallback Ctl */
+	if (wCurrentRate >= RATE_18M) {
+		if (pDevice->byAutoFBCtrl == AUTO_FB_0) {
+			pTxBufHead->wFIFOCtl |= FIFOCTL_AUTO_FB_0;
+
+			pDevice->tx_rate_fb0 =
+				wFB_Opt0[FB_RATE0][wCurrentRate - RATE_18M];
+			pDevice->tx_rate_fb1 =
+				wFB_Opt0[FB_RATE1][wCurrentRate - RATE_18M];
+
+			byFBOption = AUTO_FB_0;
+		} else if (pDevice->byAutoFBCtrl == AUTO_FB_1) {
+			pTxBufHead->wFIFOCtl |= FIFOCTL_AUTO_FB_1;
+			pDevice->tx_rate_fb0 =
+				wFB_Opt1[FB_RATE0][wCurrentRate - RATE_18M];
+			pDevice->tx_rate_fb1 =
+				wFB_Opt1[FB_RATE1][wCurrentRate - RATE_18M];
+
+			byFBOption = AUTO_FB_1;
+		}
+	}
 
     if (bSoftWEP != true) {
         if ((bNeedEncryption) && (pTransmitKey != NULL))  { //WEP enabled
-- 
cgit 


From 3dec8f165468282dc6d1504d895068d8ccfb2239 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Tue, 15 Oct 2013 21:03:53 +0100
Subject: staging: vt6656: rxtx.c s_uGetRTSCTSDuration allow fall-through
 duplicates

Allow switch fall-through of duplicate case.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/rxtx.c | 35 +++--------------------------------
 1 file changed, 3 insertions(+), 32 deletions(-)

diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index 340473075186..9cf5b0890fc1 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -430,53 +430,24 @@ static u16 s_uGetRTSCTSDuration(struct vnt_private *pDevice, u8 byDurType,
     switch (byDurType) {
 
     case RTSDUR_BB:    //RTSDuration_bb
-        uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
-        uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
-        break;
-
     case RTSDUR_BA:    //RTSDuration_ba
-        uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
-        uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
-        break;
-
-    case RTSDUR_AA:    //RTSDuration_aa
-        uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
-        uDurTime = uCTSTime + 2*pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
-        break;
-
-    case CTSDUR_BA:    //CTSDuration_ba
-        uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice, byPktType, cbFrameLength, wRate, bNeedAck);
-        break;
-
     case RTSDUR_BA_F0: //RTSDuration_ba_f0
-        uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
-	uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
-			byPktType, cbFrameLength, wRate, bNeedAck);
-        break;
-
-    case RTSDUR_AA_F0: //RTSDuration_aa_f0
-        uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
-	uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
-			byPktType, cbFrameLength, wRate, bNeedAck);
-        break;
-
     case RTSDUR_BA_F1: //RTSDuration_ba_f1
         uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
 	uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
 		byPktType, cbFrameLength, wRate, bNeedAck);
         break;
 
+    case RTSDUR_AA:
+    case RTSDUR_AA_F0:
     case RTSDUR_AA_F1: //RTSDuration_aa_f1
         uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
 	uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
 				byPktType, cbFrameLength, wRate, bNeedAck);
 	break;
 
+    case CTSDUR_BA:
     case CTSDUR_BA_F0: //CTSDuration_ba_f0
-	uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
-				byPktType, cbFrameLength, wRate, bNeedAck);
-	break;
-
     case CTSDUR_BA_F1: //CTSDuration_ba_f1
 	uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
 				byPktType, cbFrameLength, wRate, bNeedAck);
-- 
cgit 


From ecd80240af6ef5972e28441c6f3bad65a7b5c8b7 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Tue, 15 Oct 2013 21:05:02 +0100
Subject: staging: vt6656: rxtx.c clean up s_uGetRTSCTSDuration

White space clean up.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/rxtx.c | 53 +++++++++++++++++++++++--------------------
 1 file changed, 28 insertions(+), 25 deletions(-)

diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index 9cf5b0890fc1..0c1c46f3a0ed 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -427,35 +427,38 @@ static u16 s_uGetRTSCTSDuration(struct vnt_private *pDevice, u8 byDurType,
 {
 	u32 uCTSTime = 0, uDurTime = 0;
 
-    switch (byDurType) {
+	switch (byDurType) {
+	case RTSDUR_BB:
+	case RTSDUR_BA:
+	case RTSDUR_BA_F0:
+	case RTSDUR_BA_F1:
+		uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType,
+			14, pDevice->byTopCCKBasicRate);
+		uDurTime = uCTSTime + 2 * pDevice->uSIFS +
+			s_uGetTxRsvTime(pDevice, byPktType,
+						cbFrameLength, wRate, bNeedAck);
+		break;
 
-    case RTSDUR_BB:    //RTSDuration_bb
-    case RTSDUR_BA:    //RTSDuration_ba
-    case RTSDUR_BA_F0: //RTSDuration_ba_f0
-    case RTSDUR_BA_F1: //RTSDuration_ba_f1
-        uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopCCKBasicRate);
-	uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
-		byPktType, cbFrameLength, wRate, bNeedAck);
-        break;
-
-    case RTSDUR_AA:
-    case RTSDUR_AA_F0:
-    case RTSDUR_AA_F1: //RTSDuration_aa_f1
-        uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType, 14, pDevice->byTopOFDMBasicRate);
-	uDurTime = uCTSTime + 2 * pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
-				byPktType, cbFrameLength, wRate, bNeedAck);
-	break;
+	case RTSDUR_AA:
+	case RTSDUR_AA_F0:
+	case RTSDUR_AA_F1:
+		uCTSTime = BBuGetFrameTime(pDevice->byPreambleType, byPktType,
+			14, pDevice->byTopOFDMBasicRate);
+		uDurTime = uCTSTime + 2 * pDevice->uSIFS +
+			s_uGetTxRsvTime(pDevice, byPktType,
+						cbFrameLength, wRate, bNeedAck);
+		break;
 
-    case CTSDUR_BA:
-    case CTSDUR_BA_F0: //CTSDuration_ba_f0
-    case CTSDUR_BA_F1: //CTSDuration_ba_f1
-	uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
+	case CTSDUR_BA:
+	case CTSDUR_BA_F0:
+	case CTSDUR_BA_F1:
+		uDurTime = pDevice->uSIFS + s_uGetTxRsvTime(pDevice,
 				byPktType, cbFrameLength, wRate, bNeedAck);
-	break;
+		break;
 
-    default:
-        break;
-    }
+	default:
+		break;
+	}
 
 	return cpu_to_le16((u16)uDurTime);
 }
-- 
cgit 


From 3ba0938c162fc847890c8c0ab717bb8a96ee9d0d Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Tue, 15 Oct 2013 21:41:38 +0100
Subject: staging: vt6656: rxtx.c s_vFillTxKey replace u8 *pbyBuf.

Replace with struct vnt_tx_fifo_head and attach pbyBuf to
adwTxKey[0]

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/rxtx.c | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c
index 0c1c46f3a0ed..35a3ddb41a6a 100644
--- a/drivers/staging/vt6656/rxtx.c
+++ b/drivers/staging/vt6656/rxtx.c
@@ -107,8 +107,9 @@ static void s_vGenerateMACHeader(struct vnt_private *pDevice,
 	u8 *pbyBufferAddr, u16 wDuration, struct ethhdr *psEthHeader,
 	int bNeedEncrypt, u16 wFragType, u32 uDMAIdx, u32 uFragIdx);
 
-static void s_vFillTxKey(struct vnt_private *pDevice, u8 *pbyBuf,
-	u8 *pbyIVHead, PSKeyItem pTransmitKey, u8 *pbyHdrBuf, u16 wPayloadLen,
+static void s_vFillTxKey(struct vnt_private *pDevice,
+	struct vnt_tx_fifo_head *fifo_head, u8 *pbyIVHead,
+	PSKeyItem pTransmitKey, u8 *pbyHdrBuf, u16 wPayloadLen,
 	struct vnt_mic_hdr *mic_hdr);
 
 static void s_vSWencryption(struct vnt_private *pDevice,
@@ -179,10 +180,12 @@ static void s_vSaveTxPktInfo(struct vnt_private *pDevice, u8 byPktNum,
 	   ETH_ALEN);
 }
 
-static void s_vFillTxKey(struct vnt_private *pDevice, u8 *pbyBuf,
-	u8 *pbyIVHead, PSKeyItem pTransmitKey, u8 *pbyHdrBuf,
-	u16 wPayloadLen, struct vnt_mic_hdr *mic_hdr)
+static void s_vFillTxKey(struct vnt_private *pDevice,
+	struct vnt_tx_fifo_head *fifo_head, u8 *pbyIVHead,
+	PSKeyItem pTransmitKey, u8 *pbyHdrBuf, u16 wPayloadLen,
+	struct vnt_mic_hdr *mic_hdr)
 {
+	u8 *pbyBuf = (u8 *)&fifo_head->adwTxKey[0];
 	u32 *pdwIV = (u32 *)pbyIVHead;
 	u32 *pdwExtIV = (u32 *)((u8 *)pbyIVHead + 4);
 	struct ieee80211_hdr *pMACHeader = (struct ieee80211_hdr *)pbyHdrBuf;
@@ -1171,7 +1174,7 @@ static int s_bPacketToWirelessUsb(struct vnt_private *pDevice, u8 byPktType,
 
     if (bNeedEncryption == true) {
         //Fill TXKEY
-        s_vFillTxKey(pDevice, (u8 *)(pTxBufHead->adwTxKey), pbyIVHead, pTransmitKey,
+	s_vFillTxKey(pDevice, pTxBufHead, pbyIVHead, pTransmitKey,
 		pbyMacHdr, (u16)cbFrameBodySize, pMICHDR);
 
         if (pDevice->bEnableHostWEP) {
@@ -1591,7 +1594,7 @@ CMD_STATUS csMgmt_xmit(struct vnt_private *pDevice,
             }
         } while(false);
         //Fill TXKEY
-        s_vFillTxKey(pDevice, (u8 *)(pTxBufHead->adwTxKey), pbyIVHead, pTransmitKey,
+	s_vFillTxKey(pDevice, pTxBufHead, pbyIVHead, pTransmitKey,
                      (u8 *)pMACHeader, (u16)cbFrameBodySize, NULL);
 
         memcpy(pMACHeader, pPacket->p80211Header, cbMacHdLen);
@@ -2034,7 +2037,7 @@ void vDMA0_tx_80211(struct vnt_private *pDevice, struct sk_buff *skb)
 
         }
 
-        s_vFillTxKey(pDevice, (u8 *)(pTxBufHead->adwTxKey), pbyIVHead, pTransmitKey,
+	s_vFillTxKey(pDevice, pTxBufHead, pbyIVHead, pTransmitKey,
 		pbyMacHdr, (u16)cbFrameBodySize, pMICHDR);
 
         if (pDevice->bEnableHostWEP) {
-- 
cgit 


From 0a6fd02c1c0fe4ae872dc24260d569583363f52c Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:04 +0100
Subject: staging: comedi: use unsigned samples for comedi_buf_put()/get()

Sample values in comedi are generally represented as unsigned values.
`comedi_buf_put()` and `comedi_buf_get()` use a `short` to hold the
16-bit data value being transferred to or from the comedi buffer.
Change them to use `unsigned short` for consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/comedi_buf.c | 8 ++++----
 drivers/staging/comedi/comedidev.h  | 4 ++--
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/comedi/comedi_buf.c b/drivers/staging/comedi/comedi_buf.c
index 94b2385fb0af..4e26bd7fc84f 100644
--- a/drivers/staging/comedi/comedi_buf.c
+++ b/drivers/staging/comedi/comedi_buf.c
@@ -344,7 +344,7 @@ unsigned int comedi_buf_read_free(struct comedi_async *async,
 }
 EXPORT_SYMBOL_GPL(comedi_buf_read_free);
 
-int comedi_buf_put(struct comedi_async *async, short x)
+int comedi_buf_put(struct comedi_async *async, unsigned short x)
 {
 	unsigned int n = __comedi_buf_write_alloc(async, sizeof(short), 1);
 
@@ -352,20 +352,20 @@ int comedi_buf_put(struct comedi_async *async, short x)
 		async->events |= COMEDI_CB_ERROR;
 		return 0;
 	}
-	*(short *)(async->prealloc_buf + async->buf_write_ptr) = x;
+	*(unsigned short *)(async->prealloc_buf + async->buf_write_ptr) = x;
 	comedi_buf_write_free(async, sizeof(short));
 	return 1;
 }
 EXPORT_SYMBOL_GPL(comedi_buf_put);
 
-int comedi_buf_get(struct comedi_async *async, short *x)
+int comedi_buf_get(struct comedi_async *async, unsigned short *x)
 {
 	unsigned int n = comedi_buf_read_n_available(async);
 
 	if (n < sizeof(short))
 		return 0;
 	comedi_buf_read_alloc(async, sizeof(short));
-	*x = *(short *)(async->prealloc_buf + async->buf_read_ptr);
+	*x = *(unsigned short *)(async->prealloc_buf + async->buf_read_ptr);
 	comedi_buf_read_free(async, sizeof(short));
 	return 1;
 }
diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h
index 9a854b18758c..143be8076a2e 100644
--- a/drivers/staging/comedi/comedidev.h
+++ b/drivers/staging/comedi/comedidev.h
@@ -346,8 +346,8 @@ unsigned int comedi_buf_read_n_available(struct comedi_async *);
 unsigned int comedi_buf_read_alloc(struct comedi_async *, unsigned int);
 unsigned int comedi_buf_read_free(struct comedi_async *, unsigned int);
 
-int comedi_buf_put(struct comedi_async *, short);
-int comedi_buf_get(struct comedi_async *, short *);
+int comedi_buf_put(struct comedi_async *, unsigned short);
+int comedi_buf_get(struct comedi_async *, unsigned short *);
 
 void comedi_buf_memcpy_to(struct comedi_async *async, unsigned int offset,
 			  const void *source, unsigned int num_bytes);
-- 
cgit 


From ca05b81334f46469c6eb4ba7cf8630f3143c22e5 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:05 +0100
Subject: staging: comedi: use unsigned sample in cfc_write_to_buffer()

Sample values in comedi are generally represented as unsigned values.
`cfc_write_to_buffer()` in "comedi_fc.h" currently uses `short` to hold
a 16-bit sample value to be written to the buffer.  Change the type of
the parameter to `unsigned short` for consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/comedi_fc.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/comedi_fc.h b/drivers/staging/comedi/drivers/comedi_fc.h
index a4dea7cb86be..8558b07f8df3 100644
--- a/drivers/staging/comedi/drivers/comedi_fc.h
+++ b/drivers/staging/comedi/drivers/comedi_fc.h
@@ -30,7 +30,7 @@ extern unsigned int cfc_write_array_to_buffer(struct comedi_subdevice *subd,
 					      unsigned int num_bytes);
 
 static inline unsigned int cfc_write_to_buffer(struct comedi_subdevice *subd,
-					       short data)
+					       unsigned short data)
 {
 	return cfc_write_array_to_buffer(subd, &data, sizeof(data));
 };
-- 
cgit 


From 830e273c0e9c2e1c731b9bf5aa7d4d091dc128b4 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:06 +0100
Subject: staging: comedi: 8255: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
`subdev_8255_interrupt()` calls `comedi_buf_put()` with a `short` data
value merely because that's what was previously expected.  Since it now
expects an `unsigned short`, change it here for consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/8255.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/8255.c b/drivers/staging/comedi/drivers/8255.c
index 5737bb4c29ab..b4009e863414 100644
--- a/drivers/staging/comedi/drivers/8255.c
+++ b/drivers/staging/comedi/drivers/8255.c
@@ -112,7 +112,7 @@ void subdev_8255_interrupt(struct comedi_device *dev,
 {
 	struct subdev_8255_private *spriv = s->private;
 	unsigned long iobase = spriv->iobase;
-	short d;
+	unsigned short d;
 
 	d = spriv->io(0, _8255_DATA, 0, iobase);
 	d |= (spriv->io(0, _8255_DATA + 1, 0, iobase) << 8);
-- 
cgit 


From 58a37d41866fa6393b70274b9ced99c83bbee7b2 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:07 +0100
Subject: staging: comedi: addi_apci_3120: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change the element type of `ul_DmaBufferVirtual[2]` in `struct
addi_private` from `short *` to `unsigned short *` for consistency.
Note that several ADDI-DATA drivers use this struct from
"addi_common.h", but only the "addi_apci_3120" driver uses this member.
Also change the type of the `dma_buffer` parameter of
`v_APCI3120_InterruptDmaMoveBlock16bit()` from `short *` to `unsigned
short *`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/addi-data/addi_common.h    | 2 +-
 drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/addi-data/addi_common.h b/drivers/staging/comedi/drivers/addi-data/addi_common.h
index dfd1e666cc18..2ed2da3499f4 100644
--- a/drivers/staging/comedi/drivers/addi-data/addi_common.h
+++ b/drivers/staging/comedi/drivers/addi-data/addi_common.h
@@ -133,7 +133,7 @@ struct addi_private {
 	unsigned short us_UseDma;	/*  To use Dma or not */
 	unsigned char b_DmaDoubleBuffer;	/*  we can use double buffering */
 	unsigned int ui_DmaActualBuffer;	/*  which buffer is used now */
-	short *ul_DmaBufferVirtual[2];	/*  pointers to begin of DMA buffer */
+	unsigned short *ul_DmaBufferVirtual[2];	/*  pointers to DMA buffer */
 	unsigned int ul_DmaBufferHw[2];	/*  hw address of DMA buff */
 	unsigned int ui_DmaBufferSize[2];	/*  size of dma buffer in bytes */
 	unsigned int ui_DmaBufferUsesize[2];	/*  which size we may now used for transfer */
diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
index ac6e75d62e61..3c9eec84f0eb 100644
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
+++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
@@ -1391,7 +1391,7 @@ static int i_APCI3120_CommandAnalogInput(struct comedi_device *dev,
  */
 static void v_APCI3120_InterruptDmaMoveBlock16bit(struct comedi_device *dev,
 						  struct comedi_subdevice *s,
-						  short *dma_buffer,
+						  unsigned short *dma_buffer,
 						  unsigned int num_samples)
 {
 	struct addi_private *devpriv = dev->private;
-- 
cgit 


From b909ba8f8bbeda364e86cca728d7a9a325233fd6 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:08 +0100
Subject: staging: comedi: adl_pci9111: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change the element type of the `ai_bounce_buffer[]` member of `struct
pci9111_private_data` from `short` to `unsigned short` for consistency.
Also change the type of the `array` variable in `pci9111_ai_munge()`
from `short *` to `unsigned short *`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/adl_pci9111.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/adl_pci9111.c b/drivers/staging/comedi/drivers/adl_pci9111.c
index 4db46f0f315e..eab8da2c3d66 100644
--- a/drivers/staging/comedi/drivers/adl_pci9111.c
+++ b/drivers/staging/comedi/drivers/adl_pci9111.c
@@ -151,7 +151,7 @@ struct pci9111_private_data {
 	unsigned int div1;
 	unsigned int div2;
 
-	short ai_bounce_buffer[2 * PCI9111_FIFO_HALF_SIZE];
+	unsigned short ai_bounce_buffer[2 * PCI9111_FIFO_HALF_SIZE];
 };
 
 static void plx9050_interrupt_control(unsigned long io_base,
@@ -567,7 +567,7 @@ static void pci9111_ai_munge(struct comedi_device *dev,
 			     unsigned int num_bytes,
 			     unsigned int start_chan_index)
 {
-	short *array = data;
+	unsigned short *array = data;
 	unsigned int maxdata = s->maxdata;
 	unsigned int invert = (maxdata + 1) >> 1;
 	unsigned int shift = (maxdata == 0xffff) ? 0 : 4;
-- 
cgit 


From 6cda0d26b11c0b71e8cc43166fe9f669e68b61d6 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:09 +0100
Subject: staging: comedi: adl_pci9118: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change the `ao_data[]` and `dmabuf_virt[]` members of `struct
pci9118_private` and various local variables dealing with sample values
to use `unsigned short` instead of `short` for consistency.

Also remove the `short *ai_data` member of `struct pci9118_private` as
it is only assigned to.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/adl_pci9118.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
index bd5c8bbad090..0f2e8591c697 100644
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -352,12 +352,11 @@ struct pci9118_private {
 						 * on external start
 						 */
 	unsigned int ai_data_len;
-	short *ai_data;
-	short ao_data[2];			/* data output buffer */
+	unsigned short ao_data[2];		/* data output buffer */
 	unsigned int ai_scans;			/* number of scans to do */
 	char dma_doublebuf;			/* we can use double buffering */
 	unsigned int dma_actbuf;		/* which buffer is used now */
-	short *dmabuf_virt[2];			/*
+	unsigned short *dmabuf_virt[2];			/*
 						 * pointers to begin of
 						 * DMA buffer
 						 */
@@ -700,7 +699,7 @@ static void interrupt_pci9118_ai_mode4_switch(struct comedi_device *dev)
 
 static unsigned int defragment_dma_buffer(struct comedi_device *dev,
 					  struct comedi_subdevice *s,
-					  short *dma_buffer,
+					  unsigned short *dma_buffer,
 					  unsigned int num_samples)
 {
 	struct pci9118_private *devpriv = dev->private;
@@ -724,7 +723,7 @@ static unsigned int defragment_dma_buffer(struct comedi_device *dev,
 
 static int move_block_from_dma(struct comedi_device *dev,
 					struct comedi_subdevice *s,
-					short *dma_buffer,
+					unsigned short *dma_buffer,
 					unsigned int num_samples)
 {
 	struct pci9118_private *devpriv = dev->private;
@@ -925,7 +924,7 @@ static void pci9118_ai_munge(struct comedi_device *dev,
 {
 	struct pci9118_private *devpriv = dev->private;
 	unsigned int i, num_samples = num_bytes / sizeof(short);
-	short *array = data;
+	unsigned short *array = data;
 
 	for (i = 0; i < num_samples; i++) {
 		if (devpriv->usedma)
@@ -945,7 +944,7 @@ static void interrupt_pci9118_ai_onesample(struct comedi_device *dev,
 					   unsigned short int_daq)
 {
 	struct pci9118_private *devpriv = dev->private;
-	register short sampl;
+	unsigned short sampl;
 
 	s->async->events = 0;
 
@@ -1613,7 +1612,6 @@ static int pci9118_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	devpriv->ai_n_chan = cmd->chanlist_len;
 	devpriv->ai_n_scanlen = cmd->scan_end_arg;
 	devpriv->ai_chanlist = cmd->chanlist;
-	devpriv->ai_data = s->async->prealloc_buf;
 	devpriv->ai_data_len = s->async->prealloc_bufsz;
 	devpriv->ai_timer1 = 0;
 	devpriv->ai_timer2 = 0;
@@ -1987,8 +1985,8 @@ static int pci9118_common_attach(struct comedi_device *dev, int disable_irq,
 		for (i = 0; i < 2; i++) {
 			for (pages = 4; pages >= 0; pages--) {
 				devpriv->dmabuf_virt[i] =
-				    (short *)__get_free_pages(GFP_KERNEL,
-							      pages);
+				    (unsigned short *)
+				    __get_free_pages(GFP_KERNEL, pages);
 				if (devpriv->dmabuf_virt[i])
 					break;
 			}
-- 
cgit 


From e3a9e513c6ff1ce447056af90f676b6aaa724911 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:10 +0100
Subject: staging: comedi: adv_pci1710: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change the element type of the `ao_data[]` member of `struct
pci1710_private` from `short` to `unsigned short` for consistency.  Also
remove the `ai_data` member as it is only assigned to.  Change various
local variables used to hold sample values to `unsigned short`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/adv_pci1710.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c
index 49b39ec22708..c3fdcabe9aec 100644
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ b/drivers/staging/comedi/drivers/adv_pci1710.c
@@ -314,10 +314,9 @@ struct pci1710_private {
 	unsigned int *ai_chanlist;	/*  actaul chanlist */
 	unsigned int ai_flags;	/*  flaglist */
 	unsigned int ai_data_len;	/*  len of data buffer */
-	short *ai_data;		/*  data buffer */
 	unsigned int ai_timer1;	/*  timers */
 	unsigned int ai_timer2;
-	short ao_data[4];	/*  data output buffer */
+	unsigned short ao_data[4];	/*  data output buffer */
 	unsigned int cnt0_write_wait;	/* after a write, wait for update of the
 					 * internal state */
 };
@@ -736,7 +735,7 @@ static void interrupt_pci1710_every_sample(void *d)
 	int m;
 #ifdef PCI171x_PARANOIDCHECK
 	const struct boardtype *this_board = comedi_board(dev);
-	short sampl;
+	unsigned short sampl;
 #endif
 
 	m = inw(dev->iobase + PCI171x_STATUS);
@@ -817,7 +816,7 @@ static int move_block_from_fifo(struct comedi_device *dev,
 	int i, j;
 #ifdef PCI171x_PARANOIDCHECK
 	const struct boardtype *this_board = comedi_board(dev);
-	int sampl;
+	unsigned short sampl;
 #endif
 
 	j = s->async->cur_chan;
@@ -1122,7 +1121,6 @@ static int pci171x_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	devpriv->ai_chanlist = cmd->chanlist;
 	devpriv->ai_flags = cmd->flags;
 	devpriv->ai_data_len = s->async->prealloc_bufsz;
-	devpriv->ai_data = s->async->prealloc_buf;
 	devpriv->ai_timer1 = 0;
 	devpriv->ai_timer2 = 0;
 
-- 
cgit 


From 69163089384b93946133fa1b5153791797b8db44 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:11 +0100
Subject: staging: comedi: adv_pci1723: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change the element type of the `ao_data[]` member of `struct
pci1723_private` from `short` to `unsigned short` for consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/adv_pci1723.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/adv_pci1723.c b/drivers/staging/comedi/drivers/adv_pci1723.c
index 71321f75d0cd..bd4f781b4b24 100644
--- a/drivers/staging/comedi/drivers/adv_pci1723.c
+++ b/drivers/staging/comedi/drivers/adv_pci1723.c
@@ -105,7 +105,7 @@ TODO:
 
 struct pci1723_private {
 	unsigned char da_range[8];	/* D/A output range for each channel */
-	short ao_data[8];	/* data output buffer */
+	unsigned short ao_data[8];	/* data output buffer */
 };
 
 /*
-- 
cgit 


From b6b40b67a9f9a94967580707c9889a0cb9600620 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:12 +0100
Subject: staging: comedi: amplc_pci224: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change the type of the `ao_scan_vals` member of `struct pci224_private`
from `short *` to `unsigned short *` for consistency.  Also change the
type of the `array` variable in `pci224_ao_munge()` from `short *` to
`unsigned short *`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/amplc_pci224.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/amplc_pci224.c b/drivers/staging/comedi/drivers/amplc_pci224.c
index cf385b8e32bf..810e397d8fd7 100644
--- a/drivers/staging/comedi/drivers/amplc_pci224.c
+++ b/drivers/staging/comedi/drivers/amplc_pci224.c
@@ -373,7 +373,7 @@ struct pci224_private {
 	unsigned long state;
 	spinlock_t ao_spinlock;
 	unsigned int *ao_readback;
-	short *ao_scan_vals;
+	unsigned short *ao_scan_vals;
 	unsigned char *ao_scan_order;
 	int intr_cpuid;
 	short intr_running;
@@ -1112,7 +1112,7 @@ pci224_ao_munge(struct comedi_device *dev, struct comedi_subdevice *s,
 	const struct pci224_board *thisboard = comedi_board(dev);
 	struct pci224_private *devpriv = dev->private;
 	struct comedi_async *async = s->async;
-	short *array = data;
+	unsigned short *array = data;
 	unsigned int length = num_bytes / sizeof(*array);
 	unsigned int offset;
 	unsigned int shift;
-- 
cgit 


From 863e52769d43a5adbd1de99c70d6db0759529970 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:13 +0100
Subject: staging: comedi: amplc_pci230: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Replace all uses of `short` to handle sample values in the
"amplc_pci230" driver with `unsigned short` for consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/amplc_pci230.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/comedi/drivers/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c
index 43059c25d5ea..a97bbd6ca3db 100644
--- a/drivers/staging/comedi/drivers/amplc_pci230.c
+++ b/drivers/staging/comedi/drivers/amplc_pci230.c
@@ -573,14 +573,14 @@ static const struct comedi_lrange pci230_ao_range = { 2, {
 /* PCI230 daccon bipolar flag for each analogue output range. */
 static const unsigned char pci230_ao_bipolar[2] = { 0, 1 };
 
-static short pci230_ai_read(struct comedi_device *dev)
+static unsigned short pci230_ai_read(struct comedi_device *dev)
 {
 	const struct pci230_board *thisboard = comedi_board(dev);
 	struct pci230_private *devpriv = dev->private;
-	short data;
+	unsigned short data;
 
 	/* Read sample. */
-	data = (short)inw(dev->iobase + PCI230_ADCDATA);
+	data = inw(dev->iobase + PCI230_ADCDATA);
 	/* PCI230 is 12 bit - stored in upper bits of 16 bit register (lower
 	 * four bits reserved for expansion). */
 	/* PCI230+ is 16 bit AI. */
@@ -595,7 +595,7 @@ static short pci230_ai_read(struct comedi_device *dev)
 }
 
 static inline unsigned short pci230_ao_mangle_datum(struct comedi_device *dev,
-						    short datum)
+						    unsigned short datum)
 {
 	const struct pci230_board *thisboard = comedi_board(dev);
 	struct pci230_private *devpriv = dev->private;
@@ -609,11 +609,12 @@ static inline unsigned short pci230_ao_mangle_datum(struct comedi_device *dev,
 	 * four bits reserved for expansion). */
 	/* PCI230+ is also 12 bit AO. */
 	datum <<= (16 - thisboard->ao_bits);
-	return (unsigned short)datum;
+	return datum;
 }
 
 static inline void pci230_ao_write_nofifo(struct comedi_device *dev,
-					  short datum, unsigned int chan)
+					  unsigned short datum,
+					  unsigned int chan)
 {
 	struct pci230_private *devpriv = dev->private;
 
@@ -627,8 +628,8 @@ static inline void pci230_ao_write_nofifo(struct comedi_device *dev,
 								PCI230_DACOUT2));
 }
 
-static inline void pci230_ao_write_fifo(struct comedi_device *dev, short datum,
-					unsigned int chan)
+static inline void pci230_ao_write_fifo(struct comedi_device *dev,
+					unsigned short datum, unsigned int chan)
 {
 	struct pci230_private *devpriv = dev->private;
 
@@ -1165,7 +1166,7 @@ static void pci230_handle_ao_nofifo(struct comedi_device *dev,
 				    struct comedi_subdevice *s)
 {
 	struct pci230_private *devpriv = dev->private;
-	short data;
+	unsigned short data;
 	int i, ret;
 	struct comedi_async *async = s->async;
 	struct comedi_cmd *cmd = &async->cmd;
@@ -1258,7 +1259,7 @@ static int pci230_handle_ao_fifo(struct comedi_device *dev,
 		/* Process scans. */
 		for (n = 0; n < num_scans; n++) {
 			for (i = 0; i < cmd->chanlist_len; i++) {
-				short datum;
+				unsigned short datum;
 
 				comedi_buf_get(async, &datum);
 				pci230_ao_write_fifo(dev, datum,
-- 
cgit 


From 79e3b119870122c38dc474af8f6a7526735f23b2 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:14 +0100
Subject: staging: comedi: cb_pcidas: sample types are unsigned

Sample values in comedi are generally represented by unsigned values.
Change the element types of `ai_buffer[]`, `ao_buffer[]` and
`ao_value[]` in `struct cb_pcidas_private` to `unsigned short` for
consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/cb_pcidas.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c
index 0891659f9eb5..e72a403db17c 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas.c
@@ -357,15 +357,15 @@ struct cb_pcidas_private {
 	unsigned int s5933_intcsr_bits;
 	unsigned int ao_control_bits;
 	/* fifo buffers */
-	short ai_buffer[AI_BUFFER_SIZE];
-	short ao_buffer[AO_BUFFER_SIZE];
+	unsigned short ai_buffer[AI_BUFFER_SIZE];
+	unsigned short ao_buffer[AO_BUFFER_SIZE];
 	/* divisors of master clock for analog output pacing */
 	unsigned int ao_divisor1;
 	unsigned int ao_divisor2;
 	/* number of analog output samples remaining */
 	unsigned int ao_count;
 	/* cached values for readback */
-	int ao_value[2];
+	unsigned short ao_value[2];
 	unsigned int caldac_value[NUM_CHANNELS_8800];
 	unsigned int trimpot_value[NUM_CHANNELS_8402];
 	unsigned int dac08_value;
-- 
cgit 


From 0522063806aabfd498e296e4f3b94b0c93d7c16f Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:15 +0100
Subject: staging: comedi: cb_pcidas64: sample types are unsigned

Sample values in comedi are unsigned.  Change the element type of
`ao_bounce_buffer[]` in `struct pcidas64_private` from `short` to
`unsigned short` for consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/cb_pcidas64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/cb_pcidas64.c b/drivers/staging/comedi/drivers/cb_pcidas64.c
index e49743aed65d..ff5206536be3 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas64.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas64.c
@@ -1137,7 +1137,7 @@ struct pcidas64_private {
 	volatile short ai_cmd_running;
 	unsigned int ai_fifo_segment_length;
 	struct ext_clock_info ext_clock;
-	short ao_bounce_buffer[DAC_FIFO_SIZE];
+	unsigned short ao_bounce_buffer[DAC_FIFO_SIZE];
 };
 
 static unsigned int ai_range_bits_6xxx(const struct comedi_device *dev,
-- 
cgit 


From 920983458cbf4213e8a99567d8d22c3721723cd1 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:16 +0100
Subject: staging: comedi: das16: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change the type of the `data` variable in `das16_ai_munge()` from `short
*` to `unsigned short *` for consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/das16.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/das16.c b/drivers/staging/comedi/drivers/das16.c
index 30f3995d7297..a8446ca04110 100644
--- a/drivers/staging/comedi/drivers/das16.c
+++ b/drivers/staging/comedi/drivers/das16.c
@@ -846,7 +846,7 @@ static void das16_ai_munge(struct comedi_device *dev,
 			   unsigned int start_chan_index)
 {
 	unsigned int i, num_samples = num_bytes / sizeof(short);
-	short *data = array;
+	unsigned short *data = array;
 
 	for (i = 0; i < num_samples; i++) {
 		data[i] = le16_to_cpu(data[i]);
-- 
cgit 


From eabbf3f43fd91f69f3d15eab8135757d9ddda4b6 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:17 +0100
Subject: staging: comedi: das16m1: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change the element type of the `ai_buffer[]` member of `struct
das16m1_private_struct` and the types used by `munge_sample()` and
`munge_sample_array()` from `short` to `unsigned short` for consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/das16m1.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/comedi/drivers/das16m1.c b/drivers/staging/comedi/drivers/das16m1.c
index 579b74e471d9..fce9acfe8084 100644
--- a/drivers/staging/comedi/drivers/das16m1.c
+++ b/drivers/staging/comedi/drivers/das16m1.c
@@ -131,18 +131,18 @@ struct das16m1_private_struct {
 	 * needed to keep track of whether new count has been loaded into
 	 * counter yet (loaded by first sample conversion) */
 	u16 initial_hw_count;
-	short ai_buffer[FIFO_SIZE];
+	unsigned short ai_buffer[FIFO_SIZE];
 	unsigned int divisor1;	/*  divides master clock to obtain conversion speed */
 	unsigned int divisor2;	/*  divides master clock to obtain conversion speed */
 	unsigned long extra_iobase;
 };
 
-static inline short munge_sample(short data)
+static inline unsigned short munge_sample(unsigned short data)
 {
 	return (data >> 4) & 0xfff;
 }
 
-static void munge_sample_array(short *array, unsigned int num_elements)
+static void munge_sample_array(unsigned short *array, unsigned int num_elements)
 {
 	unsigned int i;
 
-- 
cgit 


From 65a62aaec2e888b6271a4f302f10ad72e966cc10 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:18 +0100
Subject: staging: comedi: das1800: sample types are unsigned

Sample values in comedi are generally represented by unsigned values.
Change the type of the `ao_update_bits` member of `struct
das1800_private` and the types of various local variables used to hold
sample values from `short` to `unsigned short` for consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/das1800.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c
index f753a10c6549..1880038956d0 100644
--- a/drivers/staging/comedi/drivers/das1800.c
+++ b/drivers/staging/comedi/drivers/das1800.c
@@ -438,7 +438,8 @@ struct das1800_private {
 	uint16_t *dma_current_buf;	/* pointer to dma buffer currently being used */
 	unsigned int dma_transfer_size;	/* size of transfer currently used, in bytes */
 	unsigned long iobase2;	/* secondary io address used for analog out on 'ao' boards */
-	short ao_update_bits;	/* remembers the last write to the 'update' dac */
+	unsigned short ao_update_bits;	/* remembers the last write to the
+					 * 'update' dac */
 };
 
 /* analog out range for 'ao' boards */
@@ -501,7 +502,7 @@ static void das1800_handle_fifo_not_empty(struct comedi_device *dev,
 					  struct comedi_subdevice *s)
 {
 	struct das1800_private *devpriv = dev->private;
-	short dpnt;
+	unsigned short dpnt;
 	int unipolar;
 	struct comedi_cmd *cmd = &s->async->cmd;
 
@@ -1211,7 +1212,7 @@ static int das1800_ai_rinsn(struct comedi_device *dev,
 	int i, n;
 	int chan, range, aref, chan_range;
 	int timeout = 1000;
-	short dpnt;
+	unsigned short dpnt;
 	int conv_flags = 0;
 	unsigned long irq_flags;
 
@@ -1276,7 +1277,7 @@ static int das1800_ao_winsn(struct comedi_device *dev,
 	int chan = CR_CHAN(insn->chanspec);
 /* int range = CR_RANGE(insn->chanspec); */
 	int update_chan = thisboard->ao_n_chan - 1;
-	short output;
+	unsigned short output;
 	unsigned long irq_flags;
 
 	/*   card expects two's complement data */
-- 
cgit 


From 766b1f95cf3ce6a70fa25978591f3fcf5de0d51c Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:19 +0100
Subject: staging: comedi: dt282x: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change various members of `struct dt282x_private` and various parameters
and variables dealing with samples to use `unsigned short` instead of
`short` for consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/dt282x.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c
index e89126a15e53..a01e6b553887 100644
--- a/drivers/staging/comedi/drivers/dt282x.c
+++ b/drivers/staging/comedi/drivers/dt282x.c
@@ -226,7 +226,7 @@ struct dt282x_private {
 
 	const struct comedi_lrange *darangelist[2];
 
-	short ao[2];
+	unsigned short ao[2];
 
 	volatile int dacsr;	/* software copies of registers */
 	volatile int adcsr;
@@ -237,7 +237,7 @@ struct dt282x_private {
 
 	struct {
 		int chan;
-		short *buf;	/* DMA buffer */
+		unsigned short *buf;	/* DMA buffer */
 		volatile int size;	/* size of current transfer */
 	} dma[2];
 	int dma_maxsize;	/* max size of DMA transfer (in bytes) */
@@ -283,7 +283,7 @@ static void dt282x_disable_dma(struct comedi_device *dev);
 
 static int dt282x_grab_dma(struct comedi_device *dev, int dma1, int dma2);
 
-static void dt282x_munge(struct comedi_device *dev, short *buf,
+static void dt282x_munge(struct comedi_device *dev, unsigned short *buf,
 			 unsigned int nbytes)
 {
 	const struct dt282x_board *board = comedi_board(dev);
@@ -496,9 +496,9 @@ static irqreturn_t dt282x_interrupt(int irq, void *d)
 #if 0
 	if (adcsr & DT2821_ADDONE) {
 		int ret;
-		short data;
+		unsigned short data;
 
-		data = (short)inw(dev->iobase + DT2821_ADDAT);
+		data = inw(dev->iobase + DT2821_ADDAT);
 		data &= (1 << board->adbits) - 1;
 
 		if (devpriv->ad_2scomp)
@@ -796,7 +796,7 @@ static int dt282x_ao_insn_write(struct comedi_device *dev,
 {
 	const struct dt282x_board *board = comedi_board(dev);
 	struct dt282x_private *devpriv = dev->private;
-	short d;
+	unsigned short d;
 	unsigned int chan;
 
 	chan = CR_CHAN(insn->chanspec);
-- 
cgit 


From 37a96e994c31b4ad823861f9858dbdf52ef801a6 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:20 +0100
Subject: staging: comedi: dt3000: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change the type of the `data` variable in `dt3k_ai_empty_fifo()` from
`short` to `unsigned short` for consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/dt3000.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/dt3000.c b/drivers/staging/comedi/drivers/dt3000.c
index fec911fc8d68..292226eeff92 100644
--- a/drivers/staging/comedi/drivers/dt3000.c
+++ b/drivers/staging/comedi/drivers/dt3000.c
@@ -331,7 +331,7 @@ static void dt3k_ai_empty_fifo(struct comedi_device *dev,
 	int rear;
 	int count;
 	int i;
-	short data;
+	unsigned short data;
 
 	front = readw(devpriv->io_addr + DPR_AD_Buf_Front);
 	count = front - devpriv->ai_front;
-- 
cgit 


From 58f91823deeeb377e6e7b20a85190575f3bf104b Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:21 +0100
Subject: staging: comedi: fl512: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change the element type of the `ao_readback[]` member of `struct
fl512_private` from `short` to `unsigned short` for consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/fl512.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/fl512.c b/drivers/staging/comedi/drivers/fl512.c
index 8d70f64b1574..e3ff4c438979 100644
--- a/drivers/staging/comedi/drivers/fl512.c
+++ b/drivers/staging/comedi/drivers/fl512.c
@@ -25,8 +25,7 @@ Configuration options:
 
 #define FL512_SIZE 16		/* the size of the used memory */
 struct fl512_private {
-
-	short ao_readback[2];
+	unsigned short ao_readback[2];
 };
 
 static const struct comedi_lrange range_fl512 = { 4, {
-- 
cgit 


From 22d1b0650a1c79488e1cabe615e6999eeb270a82 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:22 +0100
Subject: staging: comedi: icp_multi: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change the element type of the `ao_data[]` member of `struct
icp_multi_private` from `short` to `unsigned short` for consistency.

Also remove the `ai_data` and `di_data` members as they are not used.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/icp_multi.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/staging/comedi/drivers/icp_multi.c b/drivers/staging/comedi/drivers/icp_multi.c
index 15d87187b590..1e16641ec52d 100644
--- a/drivers/staging/comedi/drivers/icp_multi.c
+++ b/drivers/staging/comedi/drivers/icp_multi.c
@@ -118,9 +118,7 @@ struct icp_multi_private {
 	unsigned char act_chanlist_len;	/*  len of scanlist */
 	unsigned char act_chanlist_pos;	/*  actual position in MUX list */
 	unsigned int *ai_chanlist;	/*  actaul chanlist */
-	short *ai_data;		/*  data buffer */
-	short ao_data[4];	/*  data output buffer */
-	short di_data;		/*  Digital input data */
+	unsigned short ao_data[4];	/*  data output buffer */
 	unsigned int do_data;	/*  Remember digital output data */
 };
 
-- 
cgit 


From ac2832f85948e0a0b213be2709008461f78e7ff4 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:23 +0100
Subject: staging: comedi: me4000: sample types are unsigned (and not long!)

Sample values in comedi are generally represented as unsigned values.
Change the types of various variables in the "me4000" driver dealing
with samples to use unsigned types for consistency.

Also replace the `long` or `unsigned long` variables used to handle
32-bit register values to `unsigned int`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/me4000.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/comedi/drivers/me4000.c b/drivers/staging/comedi/drivers/me4000.c
index aba7beae8e86..3d12e9135926 100644
--- a/drivers/staging/comedi/drivers/me4000.c
+++ b/drivers/staging/comedi/drivers/me4000.c
@@ -427,7 +427,7 @@ static int xilinx_download(struct comedi_device *dev)
 static void me4000_reset(struct comedi_device *dev)
 {
 	struct me4000_info *info = dev->private;
-	unsigned long val;
+	unsigned int val;
 	int chan;
 
 	/* Make a hardware reset */
@@ -480,9 +480,9 @@ static int me4000_ai_insn_read(struct comedi_device *dev,
 	int rang = CR_RANGE(insn->chanspec);
 	int aref = CR_AREF(insn->chanspec);
 
-	unsigned long entry = 0;
-	unsigned long tmp;
-	long lval;
+	unsigned int entry = 0;
+	unsigned int tmp;
+	unsigned int lval;
 
 	if (insn->n == 0) {
 		return 0;
@@ -586,7 +586,7 @@ static int me4000_ai_insn_read(struct comedi_device *dev,
 static int me4000_ai_cancel(struct comedi_device *dev,
 			    struct comedi_subdevice *s)
 {
-	unsigned long tmp;
+	unsigned int tmp;
 
 	/* Stop any running conversion */
 	tmp = inl(dev->iobase + ME4000_AI_CTRL_REG);
@@ -783,7 +783,7 @@ static int ai_prepare(struct comedi_device *dev,
 		      unsigned int scan_ticks, unsigned int chan_ticks)
 {
 
-	unsigned long tmp = 0;
+	unsigned int tmp = 0;
 
 	/* Write timer arguments */
 	ai_write_timer(dev, init_ticks, scan_ticks, chan_ticks);
@@ -1108,7 +1108,7 @@ static irqreturn_t me4000_ai_isr(int irq, void *dev_id)
 	struct comedi_subdevice *s = &dev->subdevices[0];
 	int i;
 	int c = 0;
-	long lval;
+	unsigned int lval;
 
 	if (!dev->attached)
 		return IRQ_NONE;
@@ -1252,7 +1252,7 @@ static int me4000_ao_insn_write(struct comedi_device *dev,
 	int chan = CR_CHAN(insn->chanspec);
 	int rang = CR_RANGE(insn->chanspec);
 	int aref = CR_AREF(insn->chanspec);
-	unsigned long tmp;
+	unsigned int tmp;
 
 	if (insn->n == 0) {
 		return 0;
-- 
cgit 


From 2fb5cd385cb7ed56ce1ffd24264c3d5584972345 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:24 +0100
Subject: staging: comedi: ni_at_a2150: sample types are unsigned

Sample values in comedi are generally represented by unsigned values.
Change the type of the `dma_buffer` member of `struct a2150_private`
from `s16 *` to `uint16_t *`, and change the type of the `dpnt` variable
in `a2150_interrupt()` to `unsigned short` for consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_at_a2150.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_at_a2150.c b/drivers/staging/comedi/drivers/ni_at_a2150.c
index c77d34306119..63c847932eb8 100644
--- a/drivers/staging/comedi/drivers/ni_at_a2150.c
+++ b/drivers/staging/comedi/drivers/ni_at_a2150.c
@@ -154,7 +154,7 @@ struct a2150_private {
 
 	volatile unsigned int count;	/* number of data points left to be taken */
 	unsigned int dma;	/*  dma channel */
-	s16 *dma_buffer;	/*  dma buffer */
+	uint16_t *dma_buffer;	/*  dma buffer */
 	unsigned int dma_transfer_size;	/*  size in bytes of dma transfers */
 	int irq_dma_bits;	/*  irq/dma register bits */
 	int config_bits;	/*  config register bits */
@@ -192,7 +192,7 @@ static irqreturn_t a2150_interrupt(int irq, void *d)
 	struct comedi_async *async;
 	struct comedi_cmd *cmd;
 	unsigned int max_points, num_points, residue, leftover;
-	short dpnt;
+	unsigned short dpnt;
 	static const int sample_size = sizeof(devpriv->dma_buffer[0]);
 
 	if (!dev->attached) {
-- 
cgit 


From c0edd2c62765e76a03de48722d3d171aa6dd584a Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:25 +0100
Subject: staging: comedi: ni_labpc: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change the type of the `data` variable in `labpc_ai_cmd()` from `short`
to `unsigned short` for consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_labpc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/ni_labpc.c b/drivers/staging/comedi/drivers/ni_labpc.c
index e91570dd6b0d..0512445df08e 100644
--- a/drivers/staging/comedi/drivers/ni_labpc.c
+++ b/drivers/staging/comedi/drivers/ni_labpc.c
@@ -893,7 +893,7 @@ static int labpc_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 static int labpc_drain_fifo(struct comedi_device *dev)
 {
 	struct labpc_private *devpriv = dev->private;
-	short data;
+	unsigned short data;
 	struct comedi_async *async = dev->read_subdev->async;
 	const int timeout = 10000;
 	unsigned int i;
-- 
cgit 


From 3a2b101cc5fbba7f6fbb7c2e19478c884d00c730 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:26 +0100
Subject: staging: comedi: ni_mio_common: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change the element type of the `ai_fifo_buffer[]` element of `struct
ni_board_struct` and the types of various local variables from `short`
to `unsigned short` for consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_mio_common.c | 18 +++++++++---------
 drivers/staging/comedi/drivers/ni_stc.h        |  2 +-
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c
index b9df2eeae6fb..5113397bfecf 100644
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ b/drivers/staging/comedi/drivers/ni_mio_common.c
@@ -1292,7 +1292,7 @@ static void ni_ao_fifo_load(struct comedi_device *dev,
 	struct comedi_cmd *cmd = &async->cmd;
 	int chan;
 	int i;
-	short d;
+	unsigned short d;
 	u32 packed_data;
 	int range;
 	int err = 1;
@@ -1403,7 +1403,7 @@ static void ni_ai_fifo_read(struct comedi_device *dev,
 	int i;
 
 	if (board->reg_type == ni_reg_611x) {
-		short data[2];
+		unsigned short data[2];
 		u32 dl;
 
 		for (i = 0; i < n / 2; i++) {
@@ -1420,7 +1420,7 @@ static void ni_ai_fifo_read(struct comedi_device *dev,
 			cfc_write_to_buffer(s, data[0]);
 		}
 	} else if (board->reg_type == ni_reg_6143) {
-		short data[2];
+		unsigned short data[2];
 		u32 dl;
 
 		/*  This just reads the FIFO assuming the data is present, no checks on the FIFO status are performed */
@@ -1511,9 +1511,9 @@ static void ni_handle_fifo_dregs(struct comedi_device *dev)
 	const struct ni_board_struct *board = comedi_board(dev);
 	struct ni_private *devpriv = dev->private;
 	struct comedi_subdevice *s = &dev->subdevices[NI_AI_SUBDEV];
-	short data[2];
+	unsigned short data[2];
 	u32 dl;
-	short fifo_empty;
+	unsigned short fifo_empty;
 	int i;
 
 	if (board->reg_type == ni_reg_611x) {
@@ -1577,7 +1577,7 @@ static void get_last_sample_611x(struct comedi_device *dev)
 	const struct ni_board_struct *board = comedi_board(dev);
 	struct ni_private *devpriv __maybe_unused = dev->private;
 	struct comedi_subdevice *s = &dev->subdevices[NI_AI_SUBDEV];
-	short data;
+	unsigned short data;
 	u32 dl;
 
 	if (board->reg_type != ni_reg_611x)
@@ -1596,7 +1596,7 @@ static void get_last_sample_6143(struct comedi_device *dev)
 	const struct ni_board_struct *board = comedi_board(dev);
 	struct ni_private *devpriv __maybe_unused = dev->private;
 	struct comedi_subdevice *s = &dev->subdevices[NI_AI_SUBDEV];
-	short data;
+	unsigned short data;
 	u32 dl;
 
 	if (board->reg_type != ni_reg_6143)
@@ -1621,7 +1621,7 @@ static void ni_ai_munge(struct comedi_device *dev, struct comedi_subdevice *s,
 	struct comedi_async *async = s->async;
 	unsigned int i;
 	unsigned int length = num_bytes / bytes_per_sample(s);
-	short *array = data;
+	unsigned short *array = data;
 	unsigned int *larray = data;
 
 	for (i = 0; i < length; i++) {
@@ -2873,7 +2873,7 @@ static void ni_ao_munge(struct comedi_device *dev, struct comedi_subdevice *s,
 	unsigned int i;
 	unsigned int offset;
 	unsigned int length = num_bytes / sizeof(short);
-	short *array = data;
+	unsigned short *array = data;
 
 	offset = 1 << (board->aobits - 1);
 	for (i = 0; i < length; i++) {
diff --git a/drivers/staging/comedi/drivers/ni_stc.h b/drivers/staging/comedi/drivers/ni_stc.h
index 11bf0aab82ea..f0630b7897b5 100644
--- a/drivers/staging/comedi/drivers/ni_stc.h
+++ b/drivers/staging/comedi/drivers/ni_stc.h
@@ -1491,7 +1491,7 @@ struct ni_board_struct {
 	unsigned short pwm_up_count;	\
 	unsigned short pwm_down_count;	\
 	\
-	short ai_fifo_buffer[0x2000];				\
+	unsigned short ai_fifo_buffer[0x2000];			\
 	uint8_t eeprom_buffer[M_SERIES_EEPROM_SIZE]; \
 	uint32_t serial_number; \
 	\
-- 
cgit 


From 319b67ae1cf3c7c2339225c01c9c2456b4399140 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:27 +0100
Subject: staging: comedi: ni_pcidio: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change `nidio_interrupt()` to use unsigned types for sample values
(actually bit-vectors of 1-bit sample values) instead of signed types.

Also rename the `AuxData` variable to `auxdata` and change it from
`long` to `unsigned int` as it only needs to hold a 32-bit value.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/ni_pcidio.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c b/drivers/staging/comedi/drivers/ni_pcidio.c
index b6283a8a7cd4..e3a8fa96d9b3 100644
--- a/drivers/staging/comedi/drivers/ni_pcidio.c
+++ b/drivers/staging/comedi/drivers/ni_pcidio.c
@@ -406,9 +406,9 @@ static irqreturn_t nidio_interrupt(int irq, void *d)
 	struct mite_struct *mite = devpriv->mite;
 
 	/* int i, j; */
-	long int AuxData = 0;
-	short data1 = 0;
-	short data2 = 0;
+	unsigned int auxdata = 0;
+	unsigned short data1 = 0;
+	unsigned short data2 = 0;
 	int flags;
 	int status;
 	int work = 0;
@@ -481,11 +481,11 @@ static irqreturn_t nidio_interrupt(int irq, void *d)
 					      );
 					goto out;
 				}
-				AuxData =
+				auxdata =
 				    readl(devpriv->mite->daq_io_addr +
 					  Group_1_FIFO);
-				data1 = AuxData & 0xffff;
-				data2 = (AuxData & 0xffff0000) >> 16;
+				data1 = auxdata & 0xffff;
+				data2 = (auxdata & 0xffff0000) >> 16;
 				comedi_buf_put(async, data1);
 				comedi_buf_put(async, data2);
 				/* DPRINTK("read:%d, %d\n",data1,data2); */
-- 
cgit 


From b12bb4a5f3327cdbc080683fd5663894df14a359 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:28 +0100
Subject: staging: comedi: pcl711: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Don't cast the sample value parameter of `comedi_buf_put()` to `short`,
particularly as it has now been changed to `unsigned short`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl711.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/pcl711.c b/drivers/staging/comedi/drivers/pcl711.c
index 89982fb52e50..f0fc123ef566 100644
--- a/drivers/staging/comedi/drivers/pcl711.c
+++ b/drivers/staging/comedi/drivers/pcl711.c
@@ -213,7 +213,7 @@ static irqreturn_t pcl711_interrupt(int irq, void *d)
 
 	outb(PCL711_INT_STAT_CLR, dev->iobase + PCL711_INT_STAT_REG);
 
-	if (comedi_buf_put(s->async, (short)data) == 0) {
+	if (comedi_buf_put(s->async, data) == 0) {
 		s->async->events |= COMEDI_CB_OVERFLOW | COMEDI_CB_ERROR;
 	} else {
 		s->async->events |= COMEDI_CB_BLOCK | COMEDI_CB_EOS;
-- 
cgit 


From 8017c513050735ce6bd637eb5ecc39bbac4a8ffa Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:29 +0100
Subject: staging: comedi: pcl812: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change `transfer_from_dma_buf()` and `interrupt_pcl812_ai_dma()` in the
"pcl812" module to use `unsigned short` sample values for consistency.

Also remove the `short *ai_data` member of `struct pcl812_private` as it
is only assigned to.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl812.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl812.c b/drivers/staging/comedi/drivers/pcl812.c
index 530aee14f07a..03315abcca19 100644
--- a/drivers/staging/comedi/drivers/pcl812.c
+++ b/drivers/staging/comedi/drivers/pcl812.c
@@ -355,7 +355,6 @@ struct pcl812_private {
 	unsigned int ai_n_chan;	/*  how many channels is measured */
 	unsigned int ai_flags;	/*  flaglist */
 	unsigned int ai_data_len;	/*  len of data buffer */
-	short *ai_data;		/*  data buffer */
 	unsigned int ai_is16b;	/*  =1 we have 16 bit card */
 	unsigned long dmabuf[2];	/*  PTR to DMA buf */
 	unsigned int dmapages[2];	/*  how many pages we have allocated */
@@ -661,7 +660,6 @@ static int pcl812_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 
 	devpriv->ai_flags = cmd->flags;
 	devpriv->ai_data_len = s->async->prealloc_bufsz;
-	devpriv->ai_data = s->async->prealloc_buf;
 	if (cmd->stop_src == TRIG_COUNT) {
 		devpriv->ai_scans = cmd->stop_arg;
 		devpriv->ai_neverending = 0;
@@ -831,7 +829,8 @@ static irqreturn_t interrupt_pcl812_ai_int(int irq, void *d)
 ==============================================================================
 */
 static void transfer_from_dma_buf(struct comedi_device *dev,
-				  struct comedi_subdevice *s, short *ptr,
+				  struct comedi_subdevice *s,
+				  unsigned short *ptr,
 				  unsigned int bufptr, unsigned int len)
 {
 	struct pcl812_private *devpriv = dev->private;
@@ -869,9 +868,9 @@ static irqreturn_t interrupt_pcl812_ai_dma(int irq, void *d)
 	struct comedi_subdevice *s = &dev->subdevices[0];
 	unsigned long dma_flags;
 	int len, bufptr;
-	short *ptr;
+	unsigned short *ptr;
 
-	ptr = (short *)devpriv->dmabuf[devpriv->next_dma_buf];
+	ptr = (unsigned short *)devpriv->dmabuf[devpriv->next_dma_buf];
 	len = (devpriv->dmabytestomove[devpriv->next_dma_buf] >> 1) -
 	    devpriv->ai_poll_ptr;
 
-- 
cgit 


From 54d2dd8443d3fda0579ed0e479942c180725dac5 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:30 +0100
Subject: staging: comedi: pcl816: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change the "pcl816" module to use unsigned types to handle samples for
consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl816.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c
index 2fd9b178e0c6..ab9d2bd26a20 100644
--- a/drivers/staging/comedi/drivers/pcl816.c
+++ b/drivers/staging/comedi/drivers/pcl816.c
@@ -229,7 +229,7 @@ static irqreturn_t interrupt_pcl816_ai_mode13_int(int irq, void *d)
 	struct comedi_device *dev = d;
 	struct pcl816_private *devpriv = dev->private;
 	struct comedi_subdevice *s = &dev->subdevices[0];
-	int low, hi;
+	unsigned char low, hi;
 	int timeout = 50;	/* wait max 50us */
 
 	while (timeout--) {
@@ -281,7 +281,8 @@ static irqreturn_t interrupt_pcl816_ai_mode13_int(int irq, void *d)
    analog input dma mode 1 & 3, 816 cards
 */
 static void transfer_from_dma_buf(struct comedi_device *dev,
-				  struct comedi_subdevice *s, short *ptr,
+				  struct comedi_subdevice *s,
+				  unsigned short *ptr,
 				  unsigned int bufptr, unsigned int len)
 {
 	struct pcl816_private *devpriv = dev->private;
@@ -324,7 +325,7 @@ static irqreturn_t interrupt_pcl816_ai_mode13_dma(int irq, void *d)
 	struct comedi_subdevice *s = &dev->subdevices[0];
 	int len, bufptr, this_dma_buf;
 	unsigned long dma_flags;
-	short *ptr;
+	unsigned short *ptr;
 
 	disable_dma(devpriv->dma);
 	this_dma_buf = devpriv->next_dma_buf;
@@ -352,7 +353,7 @@ static irqreturn_t interrupt_pcl816_ai_mode13_dma(int irq, void *d)
 	devpriv->dma_runs_to_end--;
 	outb(0, dev->iobase + PCL816_CLRINT);	/* clear INT request */
 
-	ptr = (short *)devpriv->dmabuf[this_dma_buf];
+	ptr = (unsigned short *)devpriv->dmabuf[this_dma_buf];
 
 	len = (devpriv->hwdmasize[0] >> 1) - devpriv->ai_poll_ptr;
 	bufptr = devpriv->ai_poll_ptr;
@@ -665,7 +666,8 @@ static int pcl816_ai_poll(struct comedi_device *dev, struct comedi_subdevice *s)
 	}
 
 	transfer_from_dma_buf(dev, s,
-			      (short *)devpriv->dmabuf[devpriv->next_dma_buf],
+			      (unsigned short *)devpriv->dmabuf[devpriv->
+								next_dma_buf],
 			      devpriv->ai_poll_ptr, top2);
 
 	devpriv->ai_poll_ptr = top1;	/*  new buffer position */
-- 
cgit 


From 4bf59ce248250f4c847a2a9d51713233c88f1d0f Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:31 +0100
Subject: staging: comedi: pcl818: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change the interrupt data transfer functions in the "pcl818" module to
use unsigned types for consistency.

Also remove the `short *ai_data` member of `struct pcl818_private` as it
is only assigned to and otherwise unused.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl818.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl818.c b/drivers/staging/comedi/drivers/pcl818.c
index 7be0c946bd7c..9e4d7e860509 100644
--- a/drivers/staging/comedi/drivers/pcl818.c
+++ b/drivers/staging/comedi/drivers/pcl818.c
@@ -289,7 +289,6 @@ struct pcl818_private {
 	unsigned int *ai_chanlist;	/*  actaul chanlist */
 	unsigned int ai_flags;	/*  flaglist */
 	unsigned int ai_data_len;	/*  len of data buffer */
-	short *ai_data;		/*  data buffer */
 	unsigned int ai_timer1;	/*  timers */
 	unsigned int ai_timer2;
 	struct comedi_subdevice *sub_ai;	/*  ptr to AI subdevice */
@@ -443,7 +442,7 @@ static irqreturn_t interrupt_pcl818_ai_mode13_int(int irq, void *d)
 	struct comedi_device *dev = d;
 	struct pcl818_private *devpriv = dev->private;
 	struct comedi_subdevice *s = &dev->subdevices[0];
-	int low;
+	unsigned char low;
 	int timeout = 50;	/* wait max 50us */
 
 	while (timeout--) {
@@ -505,7 +504,7 @@ static irqreturn_t interrupt_pcl818_ai_mode13_dma(int irq, void *d)
 	struct comedi_subdevice *s = &dev->subdevices[0];
 	int i, len, bufptr;
 	unsigned long flags;
-	short *ptr;
+	unsigned short *ptr;
 
 	disable_dma(devpriv->dma);
 	devpriv->next_dma_buf = 1 - devpriv->next_dma_buf;
@@ -528,7 +527,7 @@ static irqreturn_t interrupt_pcl818_ai_mode13_dma(int irq, void *d)
 
 	devpriv->dma_runs_to_end--;
 	outb(0, dev->iobase + PCL818_CLRINT);	/* clear INT request */
-	ptr = (short *)devpriv->dmabuf[1 - devpriv->next_dma_buf];
+	ptr = (unsigned short *)devpriv->dmabuf[1 - devpriv->next_dma_buf];
 
 	len = devpriv->hwdmasize[0] >> 1;
 	bufptr = 0;
@@ -582,7 +581,8 @@ static irqreturn_t interrupt_pcl818_ai_mode13_fifo(int irq, void *d)
 	struct comedi_device *dev = d;
 	struct pcl818_private *devpriv = dev->private;
 	struct comedi_subdevice *s = &dev->subdevices[0];
-	int i, len, lo;
+	int i, len;
+	unsigned char lo;
 
 	outb(0, dev->iobase + PCL818_FI_INTCLR);	/*  clear fifo int request */
 
@@ -1072,7 +1072,6 @@ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	devpriv->ai_chanlist = cmd->chanlist;
 	devpriv->ai_flags = cmd->flags;
 	devpriv->ai_data_len = s->async->prealloc_bufsz;
-	devpriv->ai_data = s->async->prealloc_buf;
 	devpriv->ai_timer1 = 0;
 	devpriv->ai_timer2 = 0;
 
-- 
cgit 


From f23b65a58888555524851086d0fa418525650c83 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:32 +0100
Subject: staging: comedi: pcmmio: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change `interrupt_pcmmio()` and `ai_rinsn()` in the "pcmmio" module to
use unsigned sample values for consistency.

Also, make the order in which `interrupt_pcmmio()` writes the two sample
values (each actually containing up to 16 1-bit sample values)
independent of the host byte ordering.

Note that this module is a mess, so please excuse the checkpatch
warnings.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcmmio.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcmmio.c b/drivers/staging/comedi/drivers/pcmmio.c
index 574443df42da..14cee3ac92c5 100644
--- a/drivers/staging/comedi/drivers/pcmmio.c
+++ b/drivers/staging/comedi/drivers/pcmmio.c
@@ -553,12 +553,11 @@ static irqreturn_t interrupt_pcmmio(int irq, void *d)
 										val |= (1U << n);
 								}
 								/* Write the scan to the buffer. */
-								if (comedi_buf_put(s->async, ((short *)&val)[0])
+								if (comedi_buf_put(s->async, val)
 								    &&
 								    comedi_buf_put
 								    (s->async,
-								     ((short *)
-								      &val)[1])) {
+								     val >> 16)) {
 									s->async->events |= (COMEDI_CB_BLOCK | COMEDI_CB_EOS);
 								} else {
 									/* Overflow! Stop acquisition!! */
@@ -846,7 +845,7 @@ static int ai_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 		    CR_RANGE(insn->chanspec), aref = CR_AREF(insn->chanspec);
 		unsigned char command_byte = 0;
 		unsigned iooffset = 0;
-		short sample, adc_adjust = 0;
+		unsigned short sample, adc_adjust = 0;
 
 		if (chan > 7)
 			chan -= 8, iooffset = 4;	/*
-- 
cgit 


From 5c174c41d8a702ade02fbb125b15f58158e4d1da Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:33 +0100
Subject: staging: comedi: pcmuio: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change `pcmuio_handle_intr_subdev()` in the "pcmuio" module to use
unsigned sample values for consistency.

Also, make the order in which `pcmuio_handle_intr_subdev()` writes the
two sample values (each actually containing up to 16 1-bit sample
values) independent of the host byte ordering.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcmuio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcmuio.c b/drivers/staging/comedi/drivers/pcmuio.c
index 67e2bb1d66f0..954fa96a50ac 100644
--- a/drivers/staging/comedi/drivers/pcmuio.c
+++ b/drivers/staging/comedi/drivers/pcmuio.c
@@ -315,8 +315,8 @@ static void pcmuio_handle_intr_subdev(struct comedi_device *dev,
 	}
 
 	/* Write the scan to the buffer. */
-	if (comedi_buf_put(s->async, ((short *)&val)[0]) &&
-	    comedi_buf_put(s->async, ((short *)&val)[1])) {
+	if (comedi_buf_put(s->async, val) &&
+	    comedi_buf_put(s->async, val >> 16)) {
 		s->async->events |= (COMEDI_CB_BLOCK | COMEDI_CB_EOS);
 	} else {
 		/* Overflow! Stop acquisition!! */
-- 
cgit 


From 8bab0d680e247f47e5d6f063b68684ad25bad450 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:34 +0100
Subject: staging: comedi: quatech_daqp_cs: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Change `daqp_interrupt()` to use unsigned sample values for consistency.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/quatech_daqp_cs.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/comedi/drivers/quatech_daqp_cs.c b/drivers/staging/comedi/drivers/quatech_daqp_cs.c
index ece3031711eb..96a46954b3c0 100644
--- a/drivers/staging/comedi/drivers/quatech_daqp_cs.c
+++ b/drivers/staging/comedi/drivers/quatech_daqp_cs.c
@@ -208,8 +208,7 @@ static enum irqreturn daqp_interrupt(int irq, void *dev_id)
 	case buffer:
 		while (!((status = inb(dev->iobase + DAQP_STATUS))
 			 & DAQP_STATUS_FIFO_EMPTY)) {
-
-			short data;
+			unsigned short data;
 
 			if (status & DAQP_STATUS_DATA_LOST) {
 				s->async->events |=
-- 
cgit 


From 055a1e2c569d885eedfc4d5bfaf228e653e9285a Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:35 +0100
Subject: staging: comedi: rtd520: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Use unsigned types for sample value manipulations in the "rtd520" driver
for consistency.

Also replace the hand-coded munging of 2's complement sample values with
calls to `comedi_offset_munge()` and AND with `s->maxdata` to strip off
any extra sign bits.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/rtd520.c | 31 +++++++++++++------------------
 1 file changed, 13 insertions(+), 18 deletions(-)

diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c
index 3ec6632949bd..0ae2d6175471 100644
--- a/drivers/staging/comedi/drivers/rtd520.c
+++ b/drivers/staging/comedi/drivers/rtd520.c
@@ -602,7 +602,7 @@ static int rtd_ai_rinsn(struct comedi_device *dev,
 
 	/* convert n samples */
 	for (n = 0; n < insn->n; n++) {
-		s16 d;
+		unsigned short d;
 		/* trigger conversion */
 		writew(0, devpriv->las0 + LAS0_ADC);
 
@@ -621,9 +621,8 @@ static int rtd_ai_rinsn(struct comedi_device *dev,
 		d = d >> 3;	/* low 3 bits are marker lines */
 		if (CHAN_ARRAY_TEST(devpriv->chan_is_bipolar, 0))
 			/* convert to comedi unsigned data */
-			data[n] = d + 2048;
-		else
-			data[n] = d;
+			d = comedi_offset_munge(s, d);
+		data[n] = d & s->maxdata;
 	}
 
 	/* return the number of samples read/written */
@@ -643,8 +642,7 @@ static int ai_read_n(struct comedi_device *dev, struct comedi_subdevice *s,
 	int ii;
 
 	for (ii = 0; ii < count; ii++) {
-		short sample;
-		s16 d;
+		unsigned short d;
 
 		if (0 == devpriv->ai_count) {	/* done */
 			d = readw(devpriv->las1 + LAS1_ADC_FIFO);
@@ -654,13 +652,12 @@ static int ai_read_n(struct comedi_device *dev, struct comedi_subdevice *s,
 		d = readw(devpriv->las1 + LAS1_ADC_FIFO);
 		d = d >> 3;	/* low 3 bits are marker lines */
 		if (CHAN_ARRAY_TEST(devpriv->chan_is_bipolar,
-				    s->async->cur_chan)) {
+				    s->async->cur_chan))
 			/* convert to comedi unsigned data */
-			sample = d + 2048;
-		} else
-			sample = d;
+			d = comedi_offset_munge(s, d);
+		d &= s->maxdata;
 
-		if (!comedi_buf_put(s->async, sample))
+		if (!comedi_buf_put(s->async, d))
 			return -1;
 
 		if (devpriv->ai_count > 0)	/* < 0, means read forever */
@@ -677,8 +674,7 @@ static int ai_read_dregs(struct comedi_device *dev, struct comedi_subdevice *s)
 	struct rtd_private *devpriv = dev->private;
 
 	while (readl(devpriv->las0 + LAS0_ADC) & FS_ADC_NOT_EMPTY) {
-		short sample;
-		s16 d = readw(devpriv->las1 + LAS1_ADC_FIFO);
+		unsigned short d = readw(devpriv->las1 + LAS1_ADC_FIFO);
 
 		if (0 == devpriv->ai_count) {	/* done */
 			continue;	/* read rest */
@@ -686,13 +682,12 @@ static int ai_read_dregs(struct comedi_device *dev, struct comedi_subdevice *s)
 
 		d = d >> 3;	/* low 3 bits are marker lines */
 		if (CHAN_ARRAY_TEST(devpriv->chan_is_bipolar,
-				    s->async->cur_chan)) {
+				    s->async->cur_chan))
 			/* convert to comedi unsigned data */
-			sample = d + 2048;
-		} else
-			sample = d;
+			d = comedi_offset_munge(s, d);
+		d &= s->maxdata;
 
-		if (!comedi_buf_put(s->async, sample))
+		if (!comedi_buf_put(s->async, d))
 			return -1;
 
 		if (devpriv->ai_count > 0)	/* < 0, means read forever */
-- 
cgit 


From 5fd4b711be4859e58b7b78dd3ac60497e1b294ab Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:36 +0100
Subject: staging: comedi: s626: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Use unsigned types consistently in the "s626" module when dealing with
sample values.

Rewrite `s626_reg_to_uint()` as it can be done with a one-liner.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 22 +++++++---------------
 1 file changed, 7 insertions(+), 15 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index a34e70757922..d9aba7ce862d 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -494,7 +494,7 @@ static void s626_send_dac(struct comedi_device *dev, uint32_t val)
  * Private helper function: Write setpoint to an application DAC channel.
  */
 static void s626_set_dac(struct comedi_device *dev, uint16_t chan,
-			 short dacdata)
+			 unsigned short dacdata)
 {
 	struct s626_private *devpriv = dev->private;
 	uint16_t signmask;
@@ -1329,17 +1329,9 @@ static const struct s626_enc_info s626_enc_chan_info[] = {
 	},
 };
 
-static unsigned int s626_ai_reg_to_uint(int data)
+static unsigned int s626_ai_reg_to_uint(unsigned int data)
 {
-	unsigned int tempdata;
-
-	tempdata = (data >> 18);
-	if (tempdata & 0x2000)
-		tempdata &= 0x1fff;
-	else
-		tempdata += (1 << 13);
-
-	return tempdata;
+	return ((data >> 18) & 0x3fff) ^ 0x2000;
 }
 
 static int s626_dio_set_irq(struct comedi_device *dev, unsigned int chan)
@@ -1545,19 +1537,19 @@ static bool s626_handle_eos_interrupt(struct comedi_device *dev)
 	 * first uint16_t in the buffer because it contains junk data
 	 * from the final ADC of the previous poll list scan.
 	 */
-	int32_t *readaddr = (int32_t *)devpriv->ana_buf.logical_base + 1;
+	uint32_t *readaddr = (uint32_t *)devpriv->ana_buf.logical_base + 1;
 	bool finished = false;
 	int i;
 
 	/* get the data and hand it over to comedi */
 	for (i = 0; i < cmd->chanlist_len; i++) {
-		short tempdata;
+		unsigned short tempdata;
 
 		/*
 		 * Convert ADC data to 16-bit integer values and copy
 		 * to application buffer.
 		 */
-		tempdata = s626_ai_reg_to_uint((int)*readaddr);
+		tempdata = s626_ai_reg_to_uint(*readaddr);
 		readaddr++;
 
 		/* put data into read buffer */
@@ -1881,7 +1873,7 @@ static int s626_ai_insn_read(struct comedi_device *dev,
 	uint16_t range = CR_RANGE(insn->chanspec);
 	uint16_t adc_spec = 0;
 	uint32_t gpio_image;
-	int tmp;
+	uint32_t tmp;
 	int n;
 
 	/*
-- 
cgit 


From 470180c611639bcfee9da8dd7c0a878fc558d646 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:37 +0100
Subject: staging: comedi: usbdux: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Use unsigned types consistently for handling comedi sample data and also
for the USB data buffers.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/usbdux.c | 35 +++++++++++++++++----------------
 1 file changed, 18 insertions(+), 17 deletions(-)

diff --git a/drivers/staging/comedi/drivers/usbdux.c b/drivers/staging/comedi/drivers/usbdux.c
index 9218d7336923..da1d501d9e4e 100644
--- a/drivers/staging/comedi/drivers/usbdux.c
+++ b/drivers/staging/comedi/drivers/usbdux.c
@@ -122,7 +122,7 @@ sampling rate. If you sample two channels you get 4kHz and so on.
 #define PWM_DEFAULT_PERIOD ((long)(1E9/100))
 
 /* Size of one A/D value */
-#define SIZEADIN          ((sizeof(int16_t)))
+#define SIZEADIN          ((sizeof(uint16_t)))
 
 /*
  * Size of the input-buffer IN BYTES
@@ -134,7 +134,7 @@ sampling rate. If you sample two channels you get 4kHz and so on.
 #define SIZEINSNBUF       16
 
 /* size of one value for the D/A converter: channel and value */
-#define SIZEDAOUT          ((sizeof(int8_t)+sizeof(int16_t)))
+#define SIZEDAOUT          ((sizeof(uint8_t)+sizeof(uint16_t)))
 
 /*
  * Size of the output-buffer in bytes
@@ -195,15 +195,15 @@ struct usbdux_private {
 	/* PWM period */
 	unsigned int pwm_period;
 	/* PWM internal delay for the GPIF in the FX2 */
-	int8_t pwm_delay;
+	uint8_t pwm_delay;
 	/* size of the PWM buffer which holds the bit pattern */
 	int pwm_buf_sz;
 	/* input buffer for the ISO-transfer */
-	int16_t *in_buf;
+	uint16_t *in_buf;
 	/* input buffer for single insn */
-	int16_t *insn_buf;
+	uint16_t *insn_buf;
 
-	int8_t ao_chanlist[USBDUX_NUM_AO_CHAN];
+	uint8_t ao_chanlist[USBDUX_NUM_AO_CHAN];
 	unsigned int ao_readback[USBDUX_NUM_AO_CHAN];
 
 	unsigned int high_speed:1;
@@ -225,7 +225,7 @@ struct usbdux_private {
 	/* interval in frames/uframes */
 	unsigned int ai_interval;
 	/* commands */
-	int8_t *dux_commands;
+	uint8_t *dux_commands;
 	struct semaphore sem;
 };
 
@@ -367,7 +367,7 @@ static void usbduxsub_ai_isoc_irq(struct urb *urb)
 	n = s->async->cmd.chanlist_len;
 	for (i = 0; i < n; i++) {
 		unsigned int range = CR_RANGE(s->async->cmd.chanlist[i]);
-		int16_t val = le16_to_cpu(devpriv->in_buf[i]);
+		uint16_t val = le16_to_cpu(devpriv->in_buf[i]);
 
 		/* bipolar data is two's-complement */
 		if (comedi_range_is_bipolar(s, range))
@@ -415,7 +415,7 @@ static void usbduxsub_ao_isoc_irq(struct urb *urb)
 	struct comedi_device *dev = urb->context;
 	struct comedi_subdevice *s = dev->write_subdev;
 	struct usbdux_private *devpriv = dev->private;
-	int8_t *datap;
+	uint8_t *datap;
 	int len;
 	int ret;
 	int i;
@@ -483,7 +483,7 @@ static void usbduxsub_ao_isoc_irq(struct urb *urb)
 		*datap++ = len;
 		for (i = 0; i < s->async->cmd.chanlist_len; i++) {
 			unsigned int chan = devpriv->ao_chanlist[i];
-			short val;
+			unsigned short val;
 
 			ret = comedi_buf_get(s->async, &val);
 			if (ret < 0) {
@@ -649,14 +649,15 @@ static int usbdux_ai_cmdtest(struct comedi_device *dev,
  * creates the ADC command for the MAX1271
  * range is the range value from comedi
  */
-static int8_t create_adc_command(unsigned int chan, int range)
+static uint8_t create_adc_command(unsigned int chan, unsigned int range)
 {
-	int8_t p = (range <= 1);
-	int8_t r = ((range % 2) == 0);
+	uint8_t p = (range <= 1);
+	uint8_t r = ((range % 2) == 0);
+
 	return (chan << 4) | ((p == 1) << 2) | ((r == 1) << 3);
 }
 
-static int send_dux_commands(struct comedi_device *dev, int cmd_type)
+static int send_dux_commands(struct comedi_device *dev, unsigned int cmd_type)
 {
 	struct usb_device *usb = comedi_to_usb_dev(dev);
 	struct usbdux_private *devpriv = dev->private;
@@ -669,7 +670,7 @@ static int send_dux_commands(struct comedi_device *dev, int cmd_type)
 			    &nsent, BULK_TIMEOUT);
 }
 
-static int receive_dux_commands(struct comedi_device *dev, int command)
+static int receive_dux_commands(struct comedi_device *dev, unsigned int command)
 {
 	struct usb_device *usb = comedi_to_usb_dev(dev);
 	struct usbdux_private *devpriv = dev->private;
@@ -879,7 +880,7 @@ static int usbdux_ao_insn_write(struct comedi_device *dev,
 	struct usbdux_private *devpriv = dev->private;
 	unsigned int chan = CR_CHAN(insn->chanspec);
 	unsigned int val = devpriv->ao_readback[chan];
-	int16_t *p = (int16_t *)&devpriv->dux_commands[2];
+	uint16_t *p = (uint16_t *)&devpriv->dux_commands[2];
 	int ret = -EBUSY;
 	int i;
 
@@ -1198,7 +1199,7 @@ static int usbdux_counter_write(struct comedi_device *dev,
 {
 	struct usbdux_private *devpriv = dev->private;
 	unsigned int chan = CR_CHAN(insn->chanspec);
-	int16_t *p = (int16_t *)&devpriv->dux_commands[2];
+	uint16_t *p = (uint16_t *)&devpriv->dux_commands[2];
 	int ret = 0;
 	int i;
 
-- 
cgit 


From f1d376beae3376ce59470d23d05c57a64c7127ea Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 16 Oct 2013 14:40:38 +0100
Subject: staging: comedi: usbduxsigma: sample types are unsigned

Sample values in comedi are generally represented as unsigned values.
Use unsigned types consistently for handling comedi sample data and also
for the USB data buffers.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/usbduxsigma.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/comedi/drivers/usbduxsigma.c b/drivers/staging/comedi/drivers/usbduxsigma.c
index 5618e61893da..a5363ded3668 100644
--- a/drivers/staging/comedi/drivers/usbduxsigma.c
+++ b/drivers/staging/comedi/drivers/usbduxsigma.c
@@ -78,7 +78,7 @@
 #define USBDUXSIGMA_NUM_AO_CHAN		4
 
 /* Size of one A/D value */
-#define SIZEADIN          ((sizeof(int32_t)))
+#define SIZEADIN          ((sizeof(uint32_t)))
 
 /*
  * Size of the async input-buffer IN BYTES, the DIO state is transmitted
@@ -93,7 +93,7 @@
 #define NUMOUTCHANNELS    8
 
 /* size of one value for the D/A converter: channel and value */
-#define SIZEDAOUT          ((sizeof(uint8_t)+sizeof(int16_t)))
+#define SIZEDAOUT          ((sizeof(uint8_t)+sizeof(uint16_t)))
 
 /*
  * Size of the output-buffer in bytes
@@ -157,11 +157,11 @@ struct usbduxsigma_private {
 	/* size of the PWM buffer which holds the bit pattern */
 	int pwm_buf_sz;
 	/* input buffer for the ISO-transfer */
-	int32_t *in_buf;
+	uint32_t *in_buf;
 	/* input buffer for single insn */
-	int8_t *insn_buf;
+	uint8_t *insn_buf;
 
-	int8_t ao_chanlist[USBDUXSIGMA_NUM_AO_CHAN];
+	uint8_t ao_chanlist[USBDUXSIGMA_NUM_AO_CHAN];
 	unsigned int ao_readback[USBDUXSIGMA_NUM_AO_CHAN];
 
 	unsigned high_speed:1;
@@ -224,7 +224,7 @@ static void usbduxsigma_ai_urb_complete(struct urb *urb)
 	struct usbduxsigma_private *devpriv = dev->private;
 	struct comedi_subdevice *s = dev->read_subdev;
 	unsigned int dio_state;
-	int32_t val;
+	uint32_t val;
 	int ret;
 	int i;
 
@@ -421,7 +421,7 @@ static void usbduxsigma_ao_urb_complete(struct urb *urb)
 		*datap++ = len;
 		for (i = 0; i < len; i++) {
 			unsigned int chan = devpriv->ao_chanlist[i];
-			short val;
+			unsigned short val;
 
 			ret = comedi_buf_get(s->async, &val);
 			if (ret < 0) {
@@ -784,7 +784,7 @@ static int usbduxsigma_ai_insn_read(struct comedi_device *dev,
 	}
 
 	for (i = 0; i < insn->n; i++) {
-		int32_t val;
+		uint32_t val;
 
 		ret = usbduxsigma_receive_cmd(dev, USBDUXSIGMA_SINGLE_AD_CMD);
 		if (ret < 0) {
@@ -793,7 +793,7 @@ static int usbduxsigma_ai_insn_read(struct comedi_device *dev,
 		}
 
 		/* 32 bits big endian from the A/D converter */
-		val = be32_to_cpu(*((int32_t *)((devpriv->insn_buf) + 1)));
+		val = be32_to_cpu(*((uint32_t *)((devpriv->insn_buf) + 1)));
 		val &= 0x00ffffff;	/* strip status byte */
 		val ^= 0x00800000;	/* convert to unsigned */
 
@@ -1358,7 +1358,7 @@ static int usbduxsigma_getstatusinfo(struct comedi_device *dev, int chan)
 		return ret;
 
 	/* 32 bits big endian from the A/D converter */
-	val = be32_to_cpu(*((int32_t *)((devpriv->insn_buf)+1)));
+	val = be32_to_cpu(*((uint32_t *)((devpriv->insn_buf)+1)));
 	val &= 0x00ffffff;	/* strip status byte */
 	val ^= 0x00800000;	/* convert to unsigned */
 
-- 
cgit 


From e8b5cbb041130ef297c90f8af2d3d45dfb9e6d15 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Mon, 7 Oct 2013 00:48:46 +0100
Subject: sysrq: Document hexadecimal values for kernel.sysrq bitmask

It makes more sense to enter a bitmask in hexadecimal rather than
decimal.  Sadly we can't make it read back as hexadecimal.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/sysrq.txt | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/Documentation/sysrq.txt b/Documentation/sysrq.txt
index 8cb4d7842a5f..1c0471dc70fe 100644
--- a/Documentation/sysrq.txt
+++ b/Documentation/sysrq.txt
@@ -20,18 +20,21 @@ in /proc/sys/kernel/sysrq:
    1 - enable all functions of sysrq
   >1 - bitmask of allowed sysrq functions (see below for detailed function
        description):
-          2 - enable control of console logging level
-          4 - enable control of keyboard (SAK, unraw)
-          8 - enable debugging dumps of processes etc.
-         16 - enable sync command
-         32 - enable remount read-only
-         64 - enable signalling of processes (term, kill, oom-kill)
-        128 - allow reboot/poweroff
-        256 - allow nicing of all RT tasks
+          2 =   0x2 - enable control of console logging level
+          4 =   0x4 - enable control of keyboard (SAK, unraw)
+          8 =   0x8 - enable debugging dumps of processes etc.
+         16 =  0x10 - enable sync command
+         32 =  0x20 - enable remount read-only
+         64 =  0x40 - enable signalling of processes (term, kill, oom-kill)
+        128 =  0x80 - allow reboot/poweroff
+        256 = 0x100 - allow nicing of all RT tasks
 
 You can set the value in the file by the following command:
     echo "number" >/proc/sys/kernel/sysrq
 
+The number may be written either as decimal or as hexadecimal with the
+0x prefix.
+
 Note that the value of /proc/sys/kernel/sysrq influences only the invocation
 via a keyboard. Invocation of any operation via /proc/sysrq-trigger is always
 allowed (by a user with admin privileges).
-- 
cgit 


From 8eaede49dfdc1ff1d727f9c913665b8009945191 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Mon, 7 Oct 2013 01:05:46 +0100
Subject: sysrq: Allow magic SysRq key functions to be disabled through Kconfig

Turn the initial value of sysctl kernel.sysrq (SYSRQ_DEFAULT_ENABLE)
into a Kconfig variable.

Original version by Bastian Blank <waldi@debian.org>.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/sysrq.txt | 13 ++++++-------
 drivers/tty/sysrq.c     |  2 +-
 include/linux/sysrq.h   |  3 ---
 kernel/sysctl.c         |  2 +-
 lib/Kconfig.debug       |  9 +++++++++
 5 files changed, 17 insertions(+), 12 deletions(-)

diff --git a/Documentation/sysrq.txt b/Documentation/sysrq.txt
index 1c0471dc70fe..0e307c94809a 100644
--- a/Documentation/sysrq.txt
+++ b/Documentation/sysrq.txt
@@ -11,11 +11,9 @@ regardless of whatever else it is doing, unless it is completely locked up.
 You need to say "yes" to 'Magic SysRq key (CONFIG_MAGIC_SYSRQ)' when
 configuring the kernel. When running a kernel with SysRq compiled in,
 /proc/sys/kernel/sysrq controls the functions allowed to be invoked via
-the SysRq key. By default the file contains 1 which means that every
-possible SysRq request is allowed (in older versions SysRq was disabled
-by default, and you were required to specifically enable it at run-time
-but this is not the case any more). Here is the list of possible values
-in /proc/sys/kernel/sysrq:
+the SysRq key. The default value in this file is set by the
+CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE config symbol, which itself defaults
+to 1. Here is the list of possible values in /proc/sys/kernel/sysrq:
    0 - disable sysrq completely
    1 - enable all functions of sysrq
   >1 - bitmask of allowed sysrq functions (see below for detailed function
@@ -32,8 +30,9 @@ in /proc/sys/kernel/sysrq:
 You can set the value in the file by the following command:
     echo "number" >/proc/sys/kernel/sysrq
 
-The number may be written either as decimal or as hexadecimal with the
-0x prefix.
+The number may be written here either as decimal or as hexadecimal
+with the 0x prefix. CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE must always be
+written in hexadecimal.
 
 Note that the value of /proc/sys/kernel/sysrq influences only the invocation
 via a keyboard. Invocation of any operation via /proc/sysrq-trigger is always
diff --git a/drivers/tty/sysrq.c b/drivers/tty/sysrq.c
index 40a9fe9d3b10..ce396ecdf412 100644
--- a/drivers/tty/sysrq.c
+++ b/drivers/tty/sysrq.c
@@ -51,7 +51,7 @@
 #include <asm/irq_regs.h>
 
 /* Whether we react on sysrq keys or just ignore them */
-static int __read_mostly sysrq_enabled = SYSRQ_DEFAULT_ENABLE;
+static int __read_mostly sysrq_enabled = CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE;
 static bool __read_mostly sysrq_always_enabled;
 
 unsigned short platform_sysrq_reset_seq[] __weak = { KEY_RESERVED };
diff --git a/include/linux/sysrq.h b/include/linux/sysrq.h
index 7faf933cced7..387fa7d05c98 100644
--- a/include/linux/sysrq.h
+++ b/include/linux/sysrq.h
@@ -17,9 +17,6 @@
 #include <linux/errno.h>
 #include <linux/types.h>
 
-/* Enable/disable SYSRQ support by default (0==no, 1==yes). */
-#define SYSRQ_DEFAULT_ENABLE	1
-
 /* Possible values of bitmask for enabling sysrq functions */
 /* 0x0001 is reserved for enable everything */
 #define SYSRQ_ENABLE_LOG	0x0002
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index b2f06f3c6a3f..8b80f1bae21a 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -190,7 +190,7 @@ static int proc_dostring_coredump(struct ctl_table *table, int write,
 
 #ifdef CONFIG_MAGIC_SYSRQ
 /* Note: sysrq code uses it's own private copy */
-static int __sysrq_enabled = SYSRQ_DEFAULT_ENABLE;
+static int __sysrq_enabled = CONFIG_MAGIC_SYSRQ_DEFAULT_ENABLE;
 
 static int sysrq_sysctl_handler(ctl_table *table, int write,
 				void __user *buffer, size_t *lenp,
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 06344d986eb9..29329374ff0d 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -312,6 +312,15 @@ config MAGIC_SYSRQ
 	  keys are documented in <file:Documentation/sysrq.txt>. Don't say Y
 	  unless you really know what this hack does.
 
+config MAGIC_SYSRQ_DEFAULT_ENABLE
+	hex "Enable magic SysRq key functions by default"
+	depends on MAGIC_SYSRQ
+	default 0x1
+	help
+	  Specifies which SysRq key functions are enabled by default.
+	  This may be set to 1 or 0 to enable or disable them all, or
+	  to a bitmask as described in Documentation/sysrq.txt.
+
 config DEBUG_KERNEL
 	bool "Kernel debugging"
 	help
-- 
cgit 


From 12082ba2cb053e547dd3faef7af4842f2abe7c19 Mon Sep 17 00:00:00 2001
From: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Date: Tue, 8 Oct 2013 13:24:28 +0900
Subject: serial8250-em: convert to clk_prepare/unprepare

Add calls to clk_prepare and unprepare so that EMMA Mobile EV2 can
migrate to the common clock framework.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
[takashi.yoshii.ze@renesas.com: edited for conflicts]
Signed-off-by: Takashi Yoshii <takashi.yoshii.zj@renesas.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/8250_em.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/serial/8250/8250_em.c b/drivers/tty/serial/8250/8250_em.c
index 5f3bba12c159..d1a9078003bd 100644
--- a/drivers/tty/serial/8250/8250_em.c
+++ b/drivers/tty/serial/8250/8250_em.c
@@ -122,7 +122,7 @@ static int serial8250_em_probe(struct platform_device *pdev)
 	up.port.dev = &pdev->dev;
 	up.port.private_data = priv;
 
-	clk_enable(priv->sclk);
+	clk_prepare_enable(priv->sclk);
 	up.port.uartclk = clk_get_rate(priv->sclk);
 
 	up.port.iotype = UPIO_MEM32;
@@ -134,7 +134,7 @@ static int serial8250_em_probe(struct platform_device *pdev)
 	ret = serial8250_register_8250_port(&up);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "unable to register 8250 port\n");
-		clk_disable(priv->sclk);
+		clk_disable_unprepare(priv->sclk);
 		return ret;
 	}
 
@@ -148,7 +148,7 @@ static int serial8250_em_remove(struct platform_device *pdev)
 	struct serial8250_em_priv *priv = platform_get_drvdata(pdev);
 
 	serial8250_unregister_port(priv->line);
-	clk_disable(priv->sclk);
+	clk_disable_unprepare(priv->sclk);
 	return 0;
 }
 
-- 
cgit 


From 09238443c61e58f7fac8a3892b14b1bee40b4316 Mon Sep 17 00:00:00 2001
From: Feng Tang <feng.tang@intel.com>
Date: Wed, 9 Oct 2013 10:39:16 +0800
Subject: serial: mrst_max3110: Check the irq number before enable/disabe irq
 in PM hooks

We should check the validity of the irq number before calling
disable_irq() and enable_irq() in the suspend/resume function,
as "max->irq == 0" means the irq is not enabled for max3110
device, otherwise it will hurt device whose irq number is really 0.

Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/mrst_max3110.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/mrst_max3110.c b/drivers/tty/serial/mrst_max3110.c
index a67e7081f001..ee77e7366ed6 100644
--- a/drivers/tty/serial/mrst_max3110.c
+++ b/drivers/tty/serial/mrst_max3110.c
@@ -749,7 +749,8 @@ static int serial_m3110_suspend(struct device *dev)
 	struct spi_device *spi = to_spi_device(dev);
 	struct uart_max3110 *max = spi_get_drvdata(spi);
 
-	disable_irq(max->irq);
+	if (max->irq > 0)
+		disable_irq(max->irq);
 	uart_suspend_port(&serial_m3110_reg, &max->port);
 	max3110_out(max, max->cur_conf | WC_SW_SHDI);
 	return 0;
@@ -762,7 +763,8 @@ static int serial_m3110_resume(struct device *dev)
 
 	max3110_out(max, max->cur_conf);
 	uart_resume_port(&serial_m3110_reg, &max->port);
-	enable_irq(max->irq);
+	if (max->irq > 0)
+		enable_irq(max->irq);
 	return 0;
 }
 
-- 
cgit 


From b6951b8a63e8764558c066369a6317bfe15dca55 Mon Sep 17 00:00:00 2001
From: Bin Gao <bin.gao@intel.com>
Date: Wed, 9 Oct 2013 10:39:17 +0800
Subject: serial: mrst_max3110: Fix race condition between spi transfers

There is a race between termios configuration and xmit that can cause the
intel_mid_ssp_spi driver to stall.

Serializing spi transactions fixes the problem.

Signed-off-by: Bin Gao <bin.gao@intel.com>
Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/mrst_max3110.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/tty/serial/mrst_max3110.c b/drivers/tty/serial/mrst_max3110.c
index ee77e7366ed6..565779dc7aac 100644
--- a/drivers/tty/serial/mrst_max3110.c
+++ b/drivers/tty/serial/mrst_max3110.c
@@ -61,6 +61,7 @@ struct uart_max3110 {
 	struct task_struct *main_thread;
 	struct task_struct *read_thread;
 	struct mutex thread_mutex;
+	struct mutex io_mutex;
 
 	u32 baud;
 	u16 cur_conf;
@@ -90,6 +91,7 @@ static int max3110_write_then_read(struct uart_max3110 *max,
 	struct spi_transfer	x;
 	int ret;
 
+	mutex_lock(&max->io_mutex);
 	spi_message_init(&message);
 	memset(&x, 0, sizeof x);
 	x.len = len;
@@ -104,6 +106,7 @@ static int max3110_write_then_read(struct uart_max3110 *max,
 
 	/* Do the i/o */
 	ret = spi_sync(spi, &message);
+	mutex_unlock(&max->io_mutex);
 	return ret;
 }
 
@@ -805,6 +808,7 @@ static int serial_m3110_probe(struct spi_device *spi)
 	max->irq = (u16)spi->irq;
 
 	mutex_init(&max->thread_mutex);
+	mutex_init(&max->io_mutex);
 
 	max->word_7bits = 0;
 	max->parity = 0;
-- 
cgit 


From fc811472c2167cc885b7af422b074cc9224f3a93 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 8 Oct 2013 16:14:21 -0700
Subject: tty: Remove unnecessary semicolons

These aren't necessary after switch and while blocks.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/nozomi.c            | 6 +++---
 drivers/tty/serial/bfin_uart.c  | 4 ++--
 drivers/tty/serial/ip22zilog.c  | 2 +-
 drivers/tty/serial/max310x.c    | 2 +-
 drivers/tty/serial/pmac_zilog.c | 2 +-
 drivers/tty/serial/sunsab.c     | 2 +-
 drivers/tty/serial/sunsu.c      | 2 +-
 drivers/tty/serial/sunzilog.c   | 6 +++---
 drivers/tty/serial/ucc_uart.c   | 2 +-
 9 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/tty/nozomi.c b/drivers/tty/nozomi.c
index d6080c3831ef..cd0429369557 100644
--- a/drivers/tty/nozomi.c
+++ b/drivers/tty/nozomi.c
@@ -959,7 +959,7 @@ static int receive_flow_control(struct nozomi *dc)
 		dev_err(&dc->pdev->dev,
 			"ERROR: flow control received for non-existing port\n");
 		return 0;
-	};
+	}
 
 	DBG1("0x%04X->0x%04X", *((u16 *)&dc->port[port].ctrl_dl),
 	   *((u16 *)&ctrl_dl));
@@ -1025,7 +1025,7 @@ static enum ctrl_port_type port2ctrl(enum port_type port,
 		dev_err(&dc->pdev->dev,
 			"ERROR: send flow control " \
 			"received for non-existing port\n");
-	};
+	}
 	return CTRL_ERROR;
 }
 
@@ -1805,7 +1805,7 @@ static int ntty_ioctl(struct tty_struct *tty,
 	default:
 		DBG1("ERR: 0x%08X, %d", cmd, cmd);
 		break;
-	};
+	}
 
 	return rval;
 }
diff --git a/drivers/tty/serial/bfin_uart.c b/drivers/tty/serial/bfin_uart.c
index 8f9b3495ef5d..869ceba2ec57 100644
--- a/drivers/tty/serial/bfin_uart.c
+++ b/drivers/tty/serial/bfin_uart.c
@@ -680,7 +680,7 @@ static int bfin_serial_startup(struct uart_port *port)
 		default:
 			uart_dma_ch_rx = uart_dma_ch_tx = 0;
 			break;
-		};
+		}
 
 		if (uart_dma_ch_rx &&
 			request_dma(uart_dma_ch_rx, "BFIN_UART_RX") < 0) {
@@ -765,7 +765,7 @@ static void bfin_serial_shutdown(struct uart_port *port)
 		break;
 	default:
 		break;
-	};
+	}
 #endif
 	free_irq(uart->rx_irq, uart);
 	free_irq(uart->tx_irq, uart);
diff --git a/drivers/tty/serial/ip22zilog.c b/drivers/tty/serial/ip22zilog.c
index cb3c81eb0996..1d9420548e16 100644
--- a/drivers/tty/serial/ip22zilog.c
+++ b/drivers/tty/serial/ip22zilog.c
@@ -832,7 +832,7 @@ ip22zilog_convert_to_zs(struct uart_ip22zilog_port *up, unsigned int cflag,
 		up->curregs[5] |= Tx8;
 		up->parity_mask = 0xff;
 		break;
-	};
+	}
 	up->curregs[4] &= ~0x0c;
 	if (cflag & CSTOPB)
 		up->curregs[4] |= SB2;
diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
index b2e707aa603a..8d71e4047bb3 100644
--- a/drivers/tty/serial/max310x.c
+++ b/drivers/tty/serial/max310x.c
@@ -690,7 +690,7 @@ static void max310x_handle_tx(struct uart_port *port)
 			max310x_port_write(port, MAX310X_THR_REG,
 					   xmit->buf[xmit->tail]);
 			xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
-		};
+		}
 	}
 
 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c
index f87f1a0c8c6e..95917cefe14f 100644
--- a/drivers/tty/serial/pmac_zilog.c
+++ b/drivers/tty/serial/pmac_zilog.c
@@ -1072,7 +1072,7 @@ static void pmz_convert_to_zs(struct uart_pmac_port *uap, unsigned int cflag,
 		uap->curregs[5] |= Tx8;
 		uap->parity_mask = 0xff;
 		break;
-	};
+	}
 	uap->curregs[4] &= ~(SB_MASK);
 	if (cflag & CSTOPB)
 		uap->curregs[4] |= SB2;
diff --git a/drivers/tty/serial/sunsab.c b/drivers/tty/serial/sunsab.c
index 5d6136b2a04a..380fb5355cb2 100644
--- a/drivers/tty/serial/sunsab.c
+++ b/drivers/tty/serial/sunsab.c
@@ -894,7 +894,7 @@ static int sunsab_console_setup(struct console *con, char *options)
 	case B115200: baud = 115200; break;
 	case B230400: baud = 230400; break;
 	case B460800: baud = 460800; break;
-	};
+	}
 
 	/*
 	 * Temporary fix.
diff --git a/drivers/tty/serial/sunsu.c b/drivers/tty/serial/sunsu.c
index 699cc1b5f6aa..db79b76f5c8e 100644
--- a/drivers/tty/serial/sunsu.c
+++ b/drivers/tty/serial/sunsu.c
@@ -522,7 +522,7 @@ static void receive_kbd_ms_chars(struct uart_sunsu_port *up, int is_break)
 				serio_interrupt(&up->serio, ch, 0);
 #endif
 				break;
-			};
+			}
 		}
 	} while (serial_in(up, UART_LSR) & UART_LSR_DR);
 }
diff --git a/drivers/tty/serial/sunzilog.c b/drivers/tty/serial/sunzilog.c
index 135a15203532..45a8c6aa5837 100644
--- a/drivers/tty/serial/sunzilog.c
+++ b/drivers/tty/serial/sunzilog.c
@@ -319,7 +319,7 @@ static void sunzilog_kbdms_receive_chars(struct uart_sunzilog_port *up,
 				serio_interrupt(&up->serio, ch, 0);
 #endif
 			break;
-		};
+		}
 	}
 }
 
@@ -897,7 +897,7 @@ sunzilog_convert_to_zs(struct uart_sunzilog_port *up, unsigned int cflag,
 		up->curregs[R5] |= Tx8;
 		up->parity_mask = 0xff;
 		break;
-	};
+	}
 	up->curregs[R4] &= ~0x0c;
 	if (cflag & CSTOPB)
 		up->curregs[R4] |= SB2;
@@ -1239,7 +1239,7 @@ static int __init sunzilog_console_setup(struct console *con, char *options)
 	default: case B9600: baud = 9600; break;
 	case B19200: baud = 19200; break;
 	case B38400: baud = 38400; break;
-	};
+	}
 
 	brg = BPS_TO_BRG(baud, ZS_CLOCK / ZS_CLOCK_DIVISOR);
 
diff --git a/drivers/tty/serial/ucc_uart.c b/drivers/tty/serial/ucc_uart.c
index 88317482b81f..2fd1e1789811 100644
--- a/drivers/tty/serial/ucc_uart.c
+++ b/drivers/tty/serial/ucc_uart.c
@@ -269,7 +269,7 @@ static unsigned int qe_uart_tx_empty(struct uart_port *port)
 			return 1;
 
 		bdp++;
-	};
+	}
 }
 
 /*
-- 
cgit 


From c476f6584b0011741b4f0316f1ac4aa3a99403e1 Mon Sep 17 00:00:00 2001
From: Roel Kluin <roel.kluin@gmail.com>
Date: Fri, 11 Oct 2013 22:08:49 +0200
Subject: tty: incorrect test of echo_buf() result for ECHO_OP_START

test echo_buf() result for ECHO_OP_START

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/n_tty.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 4e69f3bd7fd8..7cdd1eb9406c 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -767,7 +767,7 @@ static size_t __process_echoes(struct tty_struct *tty)
 	 * of echo overrun before the next commit), then discard enough
 	 * data at the tail to prevent a subsequent overrun */
 	while (ldata->echo_commit - tail >= ECHO_DISCARD_WATERMARK) {
-		if (echo_buf(ldata, tail == ECHO_OP_START)) {
+		if (echo_buf(ldata, tail) == ECHO_OP_START) {
 			if (echo_buf(ldata, tail) == ECHO_OP_ERASE_TAB)
 				tail += 3;
 			else
-- 
cgit 


From e701bcadb254caf555d64af9662d5d5fbccade9d Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 15 Oct 2013 09:20:08 +0200
Subject: serial: omap: delete .set_wake callback

This callback is unused by the serial core since pre-git days
and is not coming back. Delete it. Enabling wakeup on the
OMAP serial driver is done through other runpaths these days.

Cc: Tony Lindgren <tony@atomide.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/omap-serial.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 7b00520624f9..c715778a745c 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -1060,15 +1060,6 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
 	dev_dbg(up->port.dev, "serial_omap_set_termios+%d\n", up->port.line);
 }
 
-static int serial_omap_set_wake(struct uart_port *port, unsigned int state)
-{
-	struct uart_omap_port *up = to_uart_omap_port(port);
-
-	serial_omap_enable_wakeup(up, state);
-
-	return 0;
-}
-
 static void
 serial_omap_pm(struct uart_port *port, unsigned int state,
 	       unsigned int oldstate)
@@ -1401,7 +1392,6 @@ static struct uart_ops serial_omap_pops = {
 	.shutdown	= serial_omap_shutdown,
 	.set_termios	= serial_omap_set_termios,
 	.pm		= serial_omap_pm,
-	.set_wake	= serial_omap_set_wake,
 	.type		= serial_omap_type,
 	.release_port	= serial_omap_release_port,
 	.request_port	= serial_omap_request_port,
-- 
cgit 


From adedb750727cdc33aa5074a7a3e68d47f1debc83 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 15 Oct 2013 09:20:26 +0200
Subject: serial: sa1100: delete .set_wake callback

This callback is unused by the serial core since pre-git days
and is not coming back. Delete it. Enabling wakeup on the
SA1100 platforms should be done in the suspend() callback
so the platform hook is left in the serial port struct for
later enablement.

Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/sa1100.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/sa1100.c b/drivers/tty/serial/sa1100.c
index ba25722a7131..753d4525b367 100644
--- a/drivers/tty/serial/sa1100.c
+++ b/drivers/tty/serial/sa1100.c
@@ -647,7 +647,10 @@ void sa1100_register_uart_fns(struct sa1100_port_fns *fns)
 		sa1100_pops.set_mctrl = fns->set_mctrl;
 
 	sa1100_pops.pm       = fns->pm;
-	sa1100_pops.set_wake = fns->set_wake;
+	/*
+	 * FIXME: fns->set_wake is unused - this should be called from
+	 * the suspend() callback if device_may_wakeup(dev)) is set.
+	 */
 }
 
 void __init sa1100_register_uart(int idx, int port)
-- 
cgit 


From c38c4454d8b880f095faeb279dc7121f5789a06f Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 15 Oct 2013 09:20:35 +0200
Subject: serial: mpc52xx: remove reference to .set_wake()

This callback is gone and not coming back, so will not be
supported later.

Cc: Gerhard Sittig <gsi@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/mpc52xx_uart.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/tty/serial/mpc52xx_uart.c b/drivers/tty/serial/mpc52xx_uart.c
index e05a3b1a87c7..ec06505e3ae6 100644
--- a/drivers/tty/serial/mpc52xx_uart.c
+++ b/drivers/tty/serial/mpc52xx_uart.c
@@ -1301,7 +1301,6 @@ static struct uart_ops mpc52xx_uart_ops = {
 	.shutdown	= mpc52xx_uart_shutdown,
 	.set_termios	= mpc52xx_uart_set_termios,
 /*	.pm		= mpc52xx_uart_pm,		Not supported yet */
-/*	.set_wake	= mpc52xx_uart_set_wake,	Not supported yet */
 	.type		= mpc52xx_uart_type,
 	.release_port	= mpc52xx_uart_release_port,
 	.request_port	= mpc52xx_uart_request_port,
-- 
cgit 


From 359250105407bca72c0402ecb1bbb1d7636e0e82 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 15 Oct 2013 09:20:43 +0200
Subject: serial: pch_uart: remove reference to .set_wake()

This callback is gone and not coming back, so will not be
supported later.

Cc: Johan Hovold <jhovold@gmail.com>
Acked-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/pch_uart.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index 87f25def0b41..0aa2b528ef3d 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -1614,7 +1614,6 @@ static struct uart_ops pch_uart_ops = {
 	.shutdown = pch_uart_shutdown,
 	.set_termios = pch_uart_set_termios,
 /*	.pm		= pch_uart_pm,		Not supported yet */
-/*	.set_wake	= pch_uart_set_wake,	Not supported yet */
 	.type = pch_uart_type,
 	.release_port = pch_uart_release_port,
 	.request_port = pch_uart_request_port,
-- 
cgit 


From fa2b5ea09e48186041f68649ab8192447b31bffc Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 15 Oct 2013 09:20:52 +0200
Subject: serial: core: delete .set_wake() callback

This deletes the .set_wake() callback in the struct uart_ops.
Apparently this has been unused since pre-git times. In the
old-2.6-bkcvs it is deleted as part of a changeset removing
the PM_SET_WAKEUP from pm_request_t which is since also deleted
from the kernel.

The apropriate way to set wakeups in the kernel is to have a
code snippet like this in .suspend() or .runtime_suspend()
callbacks:

static int foo_suspend(struct device *dev)
{
	if (device_may_wakeup(dev)) {
		/* Enable wakeups, set internal states */
	}
}

This specific callback is not coming back.

Cc: Rafael J. Wysocki <rjw@sisk.pl>
Cc: Len Brown <len.brown@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/serial/driver | 4 ----
 include/linux/serial_core.h | 1 -
 2 files changed, 5 deletions(-)

diff --git a/Documentation/serial/driver b/Documentation/serial/driver
index 067c47d46917..c3a7689a90e6 100644
--- a/Documentation/serial/driver
+++ b/Documentation/serial/driver
@@ -264,10 +264,6 @@ hardware.
 	Locking: none.
 	Interrupts: caller dependent.
 
-  set_wake(port,state)
-	Enable/disable power management wakeup on serial activity.  Not
-	currently implemented.
-
   type(port)
 	Return a pointer to a string constant describing the specified
 	port, or return NULL, in which case the string 'unknown' is
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index b98291ac7f14..f729be981da0 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -66,7 +66,6 @@ struct uart_ops {
 	void		(*set_ldisc)(struct uart_port *, int new);
 	void		(*pm)(struct uart_port *, unsigned int state,
 			      unsigned int oldstate);
-	int		(*set_wake)(struct uart_port *, unsigned int state);
 
 	/*
 	 * Return a string describing the type of the port
-- 
cgit 


From eb56b7edae6ba2bfd3a07e59ea82195e2c1c28ec Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Fri, 11 Oct 2013 18:30:58 +0800
Subject: serial: imx: implement the flush_buffer hook

The current driver does not implement the flush_buffer hook for
uart_ops. When we enable the DMA for the driver, and test it with Bluetooth,
we may meet the following bug for TX:

    [1] User application may call the flush operation at any time.
        The uart_flush_buffer() calls the uart_circ_clear() to set
        the xmit->head and xmit->tail with 0.

    [2] The TX DMA callback can be called at any time too.
        The dma_tx_call() will update the xmit->tail.

    If [2] occurs just after the [1], we will get the wrong xmit->tail.

This patch implements the flush_buffer hook to fix this issue.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/imx.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index c07d9bb39695..708ba899258d 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -1303,6 +1303,16 @@ static void imx_shutdown(struct uart_port *port)
 	clk_disable_unprepare(sport->clk_ipg);
 }
 
+static void imx_flush_buffer(struct uart_port *port)
+{
+	struct imx_port *sport = (struct imx_port *)port;
+
+	if (sport->dma_is_enabled) {
+		sport->tx_bytes = 0;
+		dmaengine_terminate_all(sport->dma_chan_tx);
+	}
+}
+
 static void
 imx_set_termios(struct uart_port *port, struct ktermios *termios,
 		   struct ktermios *old)
@@ -1623,6 +1633,7 @@ static struct uart_ops imx_pops = {
 	.break_ctl	= imx_break_ctl,
 	.startup	= imx_startup,
 	.shutdown	= imx_shutdown,
+	.flush_buffer	= imx_flush_buffer,
 	.set_termios	= imx_set_termios,
 	.type		= imx_type,
 	.release_port	= imx_release_port,
-- 
cgit 


From 1ce43e58d4d57acc9782d97270ec70a91a177abc Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Fri, 11 Oct 2013 18:30:59 +0800
Subject: serial: imx: check the DMA for imx_tx_empty

Assume the following situation:

  If the DMA is enabled, and the a TX DMA operation is working,
But we have not issued the TX DMA operation (or we have issued the
TX DMA operation with dma_async_issue_pending(), but the DMA has not
started to move the data from the memory to the TXFIFO).

At this time, we may get the wrong status of the transmitter when we
call the imx_tx_empty. In such situation, only check the USR2_TXDC
does not enough for us.

This patch checks the DMA's situation, and return 0 when the TX DMA is
working.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/imx.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 708ba899258d..c6c3b160dac7 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -795,8 +795,15 @@ static irqreturn_t imx_int(int irq, void *dev_id)
 static unsigned int imx_tx_empty(struct uart_port *port)
 {
 	struct imx_port *sport = (struct imx_port *)port;
+	unsigned int ret;
 
-	return (readl(sport->port.membase + USR2) & USR2_TXDC) ?  TIOCSER_TEMT : 0;
+	ret = (readl(sport->port.membase + USR2) & USR2_TXDC) ?  TIOCSER_TEMT : 0;
+
+	/* If the TX DMA is working, return 0. */
+	if (sport->dma_is_enabled && sport->dma_is_txing)
+		ret = 0;
+
+	return ret;
 }
 
 /*
-- 
cgit 


From 947c74eba85bff743bc15adbdd9193ffff60c29f Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Fri, 11 Oct 2013 18:31:00 +0800
Subject: serial: imx: fix the wrong number of scatterlist entries when
 xmit->head is 0

When the (xmit->tail > xmit->head) is true and the xmit->head is 0,
we only need one DMA scatterlist in actually. Current code uses two DMA
scatterlists in this case, this is obviously wrong.

This patch fixes it.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/imx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index c6c3b160dac7..cadf7e5848b2 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -532,7 +532,7 @@ static void dma_tx_work(struct work_struct *w)
 		return;
 	}
 
-	if (xmit->tail > xmit->head) {
+	if (xmit->tail > xmit->head && xmit->head > 0) {
 		sport->dma_tx_nents = 2;
 		sg_init_table(sgl, 2);
 		sg_set_buf(sgl, xmit->buf + xmit->tail,
-- 
cgit 


From f0ef8834b280ebb6c271f155ea040bf4af6c1881 Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Fri, 11 Oct 2013 18:31:01 +0800
Subject: serial: imx: use the dmaengine_tx_status

Use the dmaengine_tx_status to simplify the code, do not change any logic.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/imx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index cadf7e5848b2..13c2c2d09cac 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -521,7 +521,7 @@ static void dma_tx_work(struct work_struct *w)
 	unsigned long flags;
 	int ret;
 
-	status = chan->device->device_tx_status(chan, (dma_cookie_t)0, NULL);
+	status = dmaengine_tx_status(chan, (dma_cookie_t)0, NULL);
 	if (DMA_IN_PROGRESS == status)
 		return;
 
@@ -926,7 +926,7 @@ static void dma_rx_callback(void *data)
 	/* unmap it first */
 	dma_unmap_sg(sport->port.dev, sgl, 1, DMA_FROM_DEVICE);
 
-	status = chan->device->device_tx_status(chan, (dma_cookie_t)0, &state);
+	status = dmaengine_tx_status(chan, (dma_cookie_t)0, &state);
 	count = RX_BUF_SIZE - state.residue;
 	dev_dbg(sport->port.dev, "We get %d bytes.\n", count);
 
-- 
cgit 


From d80e224dd52dfc448e820aefa5f86c441ab76e1a Mon Sep 17 00:00:00 2001
From: Andy Grover <agrover@redhat.com>
Date: Wed, 9 Oct 2013 11:05:56 -0700
Subject: target: Remove TF_CIT_TMPL macro

Remove a lingering macro that just hid a dereference.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 Documentation/target/tcm_mod_builder.py      | 18 ++++++-------
 drivers/scsi/qla2xxx/tcm_qla2xxx.c           | 36 +++++++++++++-------------
 drivers/target/iscsi/iscsi_target_configfs.c | 22 ++++++++--------
 drivers/target/loopback/tcm_loop.c           | 10 ++++----
 drivers/target/sbp/sbp_target.c              | 18 ++++++-------
 drivers/target/target_core_configfs.c        |  6 ++---
 drivers/target/target_core_fabric_configfs.c | 38 ++++++++++++++--------------
 drivers/target/tcm_fc/tfc_conf.c             | 18 ++++++-------
 drivers/usb/gadget/tcm_usb_gadget.c          | 18 ++++++-------
 drivers/vhost/scsi.c                         | 18 ++++++-------
 include/target/target_core_configfs.h        |  1 -
 11 files changed, 101 insertions(+), 102 deletions(-)

diff --git a/Documentation/target/tcm_mod_builder.py b/Documentation/target/tcm_mod_builder.py
index 54d29c1320ed..230ce71f4d75 100755
--- a/Documentation/target/tcm_mod_builder.py
+++ b/Documentation/target/tcm_mod_builder.py
@@ -440,15 +440,15 @@ def tcm_mod_build_configfs(proto_ident, fabric_mod_dir_var, fabric_mod_name):
 	buf += "	/*\n"
 	buf += "	 * Setup default attribute lists for various fabric->tf_cit_tmpl\n"
 	buf += "	 */\n"
-	buf += "	TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = " + fabric_mod_name + "_wwn_attrs;\n"
-	buf += "	TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = NULL;\n"
-	buf += "	TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL;\n"
-	buf += "	TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL;\n"
-	buf += "	TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL;\n"
-	buf += "	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = NULL;\n"
-	buf += "	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;\n"
-	buf += "	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL;\n"
-	buf += "	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL;\n"
+	buf += "	fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = " + fabric_mod_name + "_wwn_attrs;\n"
+	buf += "	fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = NULL;\n"
+	buf += "	fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = NULL;\n"
+	buf += "	fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = NULL;\n"
+	buf += "	fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = NULL;\n"
+	buf += "	fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = NULL;\n"
+	buf += "	fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;\n"
+	buf += "	fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = NULL;\n"
+	buf += "	fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = NULL;\n"
 	buf += "	/*\n"
 	buf += "	 * Register the fabric for use within TCM\n"
 	buf += "	 */\n"
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
index f85b9e5c1f05..92b1654f8e20 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
@@ -1830,16 +1830,16 @@ static int tcm_qla2xxx_register_configfs(void)
 	/*
 	 * Setup default attribute lists for various fabric->tf_cit_tmpl
 	 */
-	TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = tcm_qla2xxx_wwn_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = tcm_qla2xxx_tpg_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs =
+	fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = tcm_qla2xxx_wwn_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = tcm_qla2xxx_tpg_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs =
 						tcm_qla2xxx_tpg_attrib_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = NULL;
 	/*
 	 * Register the fabric for use within TCM
 	 */
@@ -1870,15 +1870,15 @@ static int tcm_qla2xxx_register_configfs(void)
 	/*
 	 * Setup default attribute lists for various npiv_fabric->tf_cit_tmpl
 	 */
-	TF_CIT_TMPL(npiv_fabric)->tfc_wwn_cit.ct_attrs = tcm_qla2xxx_wwn_attrs;
-	TF_CIT_TMPL(npiv_fabric)->tfc_tpg_base_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(npiv_fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(npiv_fabric)->tfc_tpg_param_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(npiv_fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(npiv_fabric)->tfc_tpg_nacl_base_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(npiv_fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(npiv_fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(npiv_fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL;
+	npiv_fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = tcm_qla2xxx_wwn_attrs;
+	npiv_fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = NULL;
+	npiv_fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = NULL;
+	npiv_fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = NULL;
+	npiv_fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = NULL;
+	npiv_fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = NULL;
+	npiv_fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;
+	npiv_fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = NULL;
+	npiv_fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = NULL;
 	/*
 	 * Register the npiv_fabric for use within TCM
 	 */
diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index fd145259361d..c2d504425da6 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -1995,17 +1995,17 @@ int iscsi_target_register_configfs(void)
 	 * Setup default attribute lists for various fabric->tf_cit_tmpl
 	 * sturct config_item_type's
 	 */
-	TF_CIT_TMPL(fabric)->tfc_discovery_cit.ct_attrs = lio_target_discovery_auth_attrs;
-	TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_auth_cit.ct_attrs = lio_target_tpg_auth_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = lio_target_nacl_attrib_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = lio_target_nacl_auth_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = lio_target_nacl_param_attrs;
+	fabric->tf_cit_tmpl.tfc_discovery_cit.ct_attrs = lio_target_discovery_auth_attrs;
+	fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = lio_target_wwn_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = lio_target_tpg_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = lio_target_tpg_attrib_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_auth_cit.ct_attrs = lio_target_tpg_auth_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = lio_target_tpg_param_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = lio_target_portal_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = lio_target_initiator_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = lio_target_nacl_attrib_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = lio_target_nacl_auth_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = lio_target_nacl_param_attrs;
 
 	ret = target_fabric_configfs_register(fabric);
 	if (ret < 0) {
diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 0f6d69dabca1..150bdb426fc4 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -1334,11 +1334,11 @@ static int tcm_loop_register_configfs(void)
 	/*
 	 * Setup default attribute lists for various fabric->tf_cit_tmpl
 	 */
-	TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = tcm_loop_wwn_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = tcm_loop_tpg_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = tcm_loop_wwn_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = tcm_loop_tpg_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = NULL;
 	/*
 	 * Once fabric->tf_ops has been setup, now register the fabric for
 	 * use within TCM
diff --git a/drivers/target/sbp/sbp_target.c b/drivers/target/sbp/sbp_target.c
index e51b09a04d52..24884cac19ce 100644
--- a/drivers/target/sbp/sbp_target.c
+++ b/drivers/target/sbp/sbp_target.c
@@ -2556,15 +2556,15 @@ static int sbp_register_configfs(void)
 	/*
 	 * Setup default attribute lists for various fabric->tf_cit_tmpl
 	 */
-	TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = sbp_wwn_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = sbp_tpg_base_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = sbp_tpg_attrib_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = sbp_wwn_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = sbp_tpg_base_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = sbp_tpg_attrib_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = NULL;
 
 	ret = target_fabric_configfs_register(fabric);
 	if (ret < 0) {
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index 82e81c542e43..b04edc12f9d5 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -177,16 +177,16 @@ static struct config_group *target_core_register_fabric(
 	 * struct target_fabric_configfs *tf will contain a usage reference.
 	 */
 	pr_debug("Target_Core_ConfigFS: REGISTER tfc_wwn_cit -> %p\n",
-			&TF_CIT_TMPL(tf)->tfc_wwn_cit);
+			&tf->tf_cit_tmpl.tfc_wwn_cit);
 
 	tf->tf_group.default_groups = tf->tf_default_groups;
 	tf->tf_group.default_groups[0] = &tf->tf_disc_group;
 	tf->tf_group.default_groups[1] = NULL;
 
 	config_group_init_type_name(&tf->tf_group, name,
-			&TF_CIT_TMPL(tf)->tfc_wwn_cit);
+			&tf->tf_cit_tmpl.tfc_wwn_cit);
 	config_group_init_type_name(&tf->tf_disc_group, "discovery_auth",
-			&TF_CIT_TMPL(tf)->tfc_discovery_cit);
+			&tf->tf_cit_tmpl.tfc_discovery_cit);
 
 	pr_debug("Target_Core_ConfigFS: REGISTER -> Allocated Fabric:"
 			" %s\n", tf->tf_group.cg_item.ci_name);
diff --git a/drivers/target/target_core_fabric_configfs.c b/drivers/target/target_core_fabric_configfs.c
index 3503996d7d10..dae2ad6a669e 100644
--- a/drivers/target/target_core_fabric_configfs.c
+++ b/drivers/target/target_core_fabric_configfs.c
@@ -385,9 +385,9 @@ static struct config_group *target_fabric_make_mappedlun(
 	}
 
 	config_group_init_type_name(&lacl->se_lun_group, name,
-			&TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_cit);
+			&tf->tf_cit_tmpl.tfc_tpg_mappedlun_cit);
 	config_group_init_type_name(&lacl->ml_stat_grps.stat_group,
-			"statistics", &TF_CIT_TMPL(tf)->tfc_tpg_mappedlun_stat_cit);
+			"statistics", &tf->tf_cit_tmpl.tfc_tpg_mappedlun_stat_cit);
 	lacl_cg->default_groups[0] = &lacl->ml_stat_grps.stat_group;
 	lacl_cg->default_groups[1] = NULL;
 
@@ -504,16 +504,16 @@ static struct config_group *target_fabric_make_nodeacl(
 	nacl_cg->default_groups[4] = NULL;
 
 	config_group_init_type_name(&se_nacl->acl_group, name,
-			&TF_CIT_TMPL(tf)->tfc_tpg_nacl_base_cit);
+			&tf->tf_cit_tmpl.tfc_tpg_nacl_base_cit);
 	config_group_init_type_name(&se_nacl->acl_attrib_group, "attrib",
-			&TF_CIT_TMPL(tf)->tfc_tpg_nacl_attrib_cit);
+			&tf->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit);
 	config_group_init_type_name(&se_nacl->acl_auth_group, "auth",
-			&TF_CIT_TMPL(tf)->tfc_tpg_nacl_auth_cit);
+			&tf->tf_cit_tmpl.tfc_tpg_nacl_auth_cit);
 	config_group_init_type_name(&se_nacl->acl_param_group, "param",
-			&TF_CIT_TMPL(tf)->tfc_tpg_nacl_param_cit);
+			&tf->tf_cit_tmpl.tfc_tpg_nacl_param_cit);
 	config_group_init_type_name(&se_nacl->acl_fabric_stat_group,
 			"fabric_statistics",
-			&TF_CIT_TMPL(tf)->tfc_tpg_nacl_stat_cit);
+			&tf->tf_cit_tmpl.tfc_tpg_nacl_stat_cit);
 
 	return &se_nacl->acl_group;
 }
@@ -595,7 +595,7 @@ static struct config_group *target_fabric_make_np(
 
 	se_tpg_np->tpg_np_parent = se_tpg;
 	config_group_init_type_name(&se_tpg_np->tpg_np_group, name,
-			&TF_CIT_TMPL(tf)->tfc_tpg_np_base_cit);
+			&tf->tf_cit_tmpl.tfc_tpg_np_base_cit);
 
 	return &se_tpg_np->tpg_np_group;
 }
@@ -899,9 +899,9 @@ static struct config_group *target_fabric_make_lun(
 	}
 
 	config_group_init_type_name(&lun->lun_group, name,
-			&TF_CIT_TMPL(tf)->tfc_tpg_port_cit);
+			&tf->tf_cit_tmpl.tfc_tpg_port_cit);
 	config_group_init_type_name(&lun->port_stat_grps.stat_group,
-			"statistics", &TF_CIT_TMPL(tf)->tfc_tpg_port_stat_cit);
+			"statistics", &tf->tf_cit_tmpl.tfc_tpg_port_stat_cit);
 	lun_cg->default_groups[0] = &lun->port_stat_grps.stat_group;
 	lun_cg->default_groups[1] = NULL;
 
@@ -1056,19 +1056,19 @@ static struct config_group *target_fabric_make_tpg(
 	se_tpg->tpg_group.default_groups[6] = NULL;
 
 	config_group_init_type_name(&se_tpg->tpg_group, name,
-			&TF_CIT_TMPL(tf)->tfc_tpg_base_cit);
+			&tf->tf_cit_tmpl.tfc_tpg_base_cit);
 	config_group_init_type_name(&se_tpg->tpg_lun_group, "lun",
-			&TF_CIT_TMPL(tf)->tfc_tpg_lun_cit);
+			&tf->tf_cit_tmpl.tfc_tpg_lun_cit);
 	config_group_init_type_name(&se_tpg->tpg_np_group, "np",
-			&TF_CIT_TMPL(tf)->tfc_tpg_np_cit);
+			&tf->tf_cit_tmpl.tfc_tpg_np_cit);
 	config_group_init_type_name(&se_tpg->tpg_acl_group, "acls",
-			&TF_CIT_TMPL(tf)->tfc_tpg_nacl_cit);
+			&tf->tf_cit_tmpl.tfc_tpg_nacl_cit);
 	config_group_init_type_name(&se_tpg->tpg_attrib_group, "attrib",
-			&TF_CIT_TMPL(tf)->tfc_tpg_attrib_cit);
+			&tf->tf_cit_tmpl.tfc_tpg_attrib_cit);
 	config_group_init_type_name(&se_tpg->tpg_auth_group, "auth",
-			&TF_CIT_TMPL(tf)->tfc_tpg_auth_cit);
+			&tf->tf_cit_tmpl.tfc_tpg_auth_cit);
 	config_group_init_type_name(&se_tpg->tpg_param_group, "param",
-			&TF_CIT_TMPL(tf)->tfc_tpg_param_cit);
+			&tf->tf_cit_tmpl.tfc_tpg_param_cit);
 
 	return &se_tpg->tpg_group;
 }
@@ -1155,9 +1155,9 @@ static struct config_group *target_fabric_make_wwn(
 	wwn->wwn_group.default_groups[1] = NULL;
 
 	config_group_init_type_name(&wwn->wwn_group, name,
-			&TF_CIT_TMPL(tf)->tfc_tpg_cit);
+			&tf->tf_cit_tmpl.tfc_tpg_cit);
 	config_group_init_type_name(&wwn->fabric_stat_group, "fabric_statistics",
-			&TF_CIT_TMPL(tf)->tfc_wwn_fabric_stats_cit);
+			&tf->tf_cit_tmpl.tfc_wwn_fabric_stats_cit);
 
 	return &wwn->wwn_group;
 }
diff --git a/drivers/target/tcm_fc/tfc_conf.c b/drivers/target/tcm_fc/tfc_conf.c
index 4e0050840a72..c6932fb53a8d 100644
--- a/drivers/target/tcm_fc/tfc_conf.c
+++ b/drivers/target/tcm_fc/tfc_conf.c
@@ -571,16 +571,16 @@ int ft_register_configfs(void)
 	/*
 	 * Setup default attribute lists for various fabric->tf_cit_tmpl
 	 */
-	TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = ft_wwn_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs =
+	fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = ft_wwn_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs =
 						    ft_nacl_base_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = NULL;
 	/*
 	 * register the fabric for use within TCM
 	 */
diff --git a/drivers/usb/gadget/tcm_usb_gadget.c b/drivers/usb/gadget/tcm_usb_gadget.c
index 0ff33396eef3..9d89905e2318 100644
--- a/drivers/usb/gadget/tcm_usb_gadget.c
+++ b/drivers/usb/gadget/tcm_usb_gadget.c
@@ -1923,15 +1923,15 @@ static int usbg_register_configfs(void)
 	}
 
 	fabric->tf_ops = usbg_ops;
-	TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = usbg_wwn_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = usbg_base_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = usbg_wwn_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = usbg_base_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = NULL;
 	ret = target_fabric_configfs_register(fabric);
 	if (ret < 0) {
 		printk(KERN_ERR "target_fabric_configfs_register() failed"
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index 592b31698fc8..0225c1f5eb39 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -2163,15 +2163,15 @@ static int tcm_vhost_register_configfs(void)
 	/*
 	 * Setup default attribute lists for various fabric->tf_cit_tmpl
 	 */
-	TF_CIT_TMPL(fabric)->tfc_wwn_cit.ct_attrs = tcm_vhost_wwn_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_base_cit.ct_attrs = tcm_vhost_tpg_attrs;
-	TF_CIT_TMPL(fabric)->tfc_tpg_attrib_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_param_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_np_base_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_base_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_auth_cit.ct_attrs = NULL;
-	TF_CIT_TMPL(fabric)->tfc_tpg_nacl_param_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_wwn_cit.ct_attrs = tcm_vhost_wwn_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_base_cit.ct_attrs = tcm_vhost_tpg_attrs;
+	fabric->tf_cit_tmpl.tfc_tpg_attrib_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_param_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_np_base_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_base_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_attrib_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_auth_cit.ct_attrs = NULL;
+	fabric->tf_cit_tmpl.tfc_tpg_nacl_param_cit.ct_attrs = NULL;
 	/*
 	 * Register the fabric for use within TCM
 	 */
diff --git a/include/target/target_core_configfs.h b/include/target/target_core_configfs.h
index 713c5004f4ae..e0801386e4dc 100644
--- a/include/target/target_core_configfs.h
+++ b/include/target/target_core_configfs.h
@@ -54,4 +54,3 @@ struct target_fabric_configfs {
 	struct target_fabric_configfs_template tf_cit_tmpl;
 };
 
-#define TF_CIT_TMPL(tf) (&(tf)->tf_cit_tmpl)
-- 
cgit 


From b7eec2cdd874ad678228a32a31dea32e3fcc2f99 Mon Sep 17 00:00:00 2001
From: Andy Grover <agrover@redhat.com>
Date: Wed, 9 Oct 2013 11:05:57 -0700
Subject: target/iscsi: Remove iscsi dereferencing macros

These are all straightforward.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/iscsi/iscsi_target_configfs.c | 42 ++++++++++++++--------------
 drivers/target/iscsi/iscsi_target_core.h     |  9 ------
 drivers/target/iscsi/iscsi_target_nego.c     |  8 +++---
 drivers/target/iscsi/iscsi_target_tpg.c      |  4 +--
 4 files changed, 27 insertions(+), 36 deletions(-)

diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index c2d504425da6..59a0241a016d 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -372,7 +372,7 @@ static ssize_t iscsi_nacl_attrib_show_##name(				\
 	struct iscsi_node_acl *nacl = container_of(se_nacl, struct iscsi_node_acl, \
 					se_node_acl);			\
 									\
-	return sprintf(page, "%u\n", ISCSI_NODE_ATTRIB(nacl)->name);	\
+	return sprintf(page, "%u\n", nacl->node_attrib.name);		\
 }									\
 									\
 static ssize_t iscsi_nacl_attrib_store_##name(				\
@@ -897,7 +897,7 @@ static struct se_node_acl *lio_target_make_nodeacl(
 	if (!se_nacl_new)
 		return ERR_PTR(-ENOMEM);
 
-	cmdsn_depth = ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth;
+	cmdsn_depth = tpg->tpg_attrib.default_cmdsn_depth;
 	/*
 	 * se_nacl_new may be released by core_tpg_add_initiator_node_acl()
 	 * when converting a NdoeACL from demo mode -> explict
@@ -920,9 +920,9 @@ static struct se_node_acl *lio_target_make_nodeacl(
 		return ERR_PTR(-ENOMEM);
 	}
 
-	stats_cg->default_groups[0] = &NODE_STAT_GRPS(acl)->iscsi_sess_stats_group;
+	stats_cg->default_groups[0] = &acl->node_stat_grps.iscsi_sess_stats_group;
 	stats_cg->default_groups[1] = NULL;
-	config_group_init_type_name(&NODE_STAT_GRPS(acl)->iscsi_sess_stats_group,
+	config_group_init_type_name(&acl->node_stat_grps.iscsi_sess_stats_group,
 			"iscsi_sess_stats", &iscsi_stat_sess_cit);
 
 	return se_nacl;
@@ -967,7 +967,7 @@ static ssize_t iscsi_tpg_attrib_show_##name(				\
 	if (iscsit_get_tpg(tpg) < 0)					\
 		return -EINVAL;						\
 									\
-	rb = sprintf(page, "%u\n", ISCSI_TPG_ATTRIB(tpg)->name);	\
+	rb = sprintf(page, "%u\n", tpg->tpg_attrib.name);		\
 	iscsit_put_tpg(tpg);						\
 	return rb;							\
 }									\
@@ -1514,21 +1514,21 @@ static struct se_wwn *lio_target_call_coreaddtiqn(
 		return ERR_PTR(-ENOMEM);
 	}
 
-	stats_cg->default_groups[0] = &WWN_STAT_GRPS(tiqn)->iscsi_instance_group;
-	stats_cg->default_groups[1] = &WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group;
-	stats_cg->default_groups[2] = &WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group;
-	stats_cg->default_groups[3] = &WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group;
-	stats_cg->default_groups[4] = &WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group;
+	stats_cg->default_groups[0] = &tiqn->tiqn_stat_grps.iscsi_instance_group;
+	stats_cg->default_groups[1] = &tiqn->tiqn_stat_grps.iscsi_sess_err_group;
+	stats_cg->default_groups[2] = &tiqn->tiqn_stat_grps.iscsi_tgt_attr_group;
+	stats_cg->default_groups[3] = &tiqn->tiqn_stat_grps.iscsi_login_stats_group;
+	stats_cg->default_groups[4] = &tiqn->tiqn_stat_grps.iscsi_logout_stats_group;
 	stats_cg->default_groups[5] = NULL;
-	config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_instance_group,
+	config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_instance_group,
 			"iscsi_instance", &iscsi_stat_instance_cit);
-	config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_sess_err_group,
+	config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_sess_err_group,
 			"iscsi_sess_err", &iscsi_stat_sess_err_cit);
-	config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_tgt_attr_group,
+	config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_tgt_attr_group,
 			"iscsi_tgt_attr", &iscsi_stat_tgt_attr_cit);
-	config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_login_stats_group,
+	config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_login_stats_group,
 			"iscsi_login_stats", &iscsi_stat_login_cit);
-	config_group_init_type_name(&WWN_STAT_GRPS(tiqn)->iscsi_logout_stats_group,
+	config_group_init_type_name(&tiqn->tiqn_stat_grps.iscsi_logout_stats_group,
 			"iscsi_logout_stats", &iscsi_stat_logout_cit);
 
 	pr_debug("LIO_Target_ConfigFS: REGISTER -> %s\n", tiqn->tiqn);
@@ -1815,21 +1815,21 @@ static u32 lio_tpg_get_default_depth(struct se_portal_group *se_tpg)
 {
 	struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
 
-	return ISCSI_TPG_ATTRIB(tpg)->default_cmdsn_depth;
+	return tpg->tpg_attrib.default_cmdsn_depth;
 }
 
 static int lio_tpg_check_demo_mode(struct se_portal_group *se_tpg)
 {
 	struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
 
-	return ISCSI_TPG_ATTRIB(tpg)->generate_node_acls;
+	return tpg->tpg_attrib.generate_node_acls;
 }
 
 static int lio_tpg_check_demo_mode_cache(struct se_portal_group *se_tpg)
 {
 	struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
 
-	return ISCSI_TPG_ATTRIB(tpg)->cache_dynamic_acls;
+	return tpg->tpg_attrib.cache_dynamic_acls;
 }
 
 static int lio_tpg_check_demo_mode_write_protect(
@@ -1837,7 +1837,7 @@ static int lio_tpg_check_demo_mode_write_protect(
 {
 	struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
 
-	return ISCSI_TPG_ATTRIB(tpg)->demo_mode_write_protect;
+	return tpg->tpg_attrib.demo_mode_write_protect;
 }
 
 static int lio_tpg_check_prod_mode_write_protect(
@@ -1845,7 +1845,7 @@ static int lio_tpg_check_prod_mode_write_protect(
 {
 	struct iscsi_portal_group *tpg = se_tpg->se_tpg_fabric_ptr;
 
-	return ISCSI_TPG_ATTRIB(tpg)->prod_mode_write_protect;
+	return tpg->tpg_attrib.prod_mode_write_protect;
 }
 
 static void lio_tpg_release_fabric_acl(
@@ -1909,7 +1909,7 @@ static void lio_set_default_node_attributes(struct se_node_acl *se_acl)
 	struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl,
 				se_node_acl);
 
-	ISCSI_NODE_ATTRIB(acl)->nacl = acl;
+	acl->node_attrib.nacl = acl;
 	iscsit_set_default_node_attribues(acl);
 }
 
diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h
index 9a5721b8ff96..1d14f77aec2e 100644
--- a/drivers/target/iscsi/iscsi_target_core.h
+++ b/drivers/target/iscsi/iscsi_target_core.h
@@ -755,11 +755,6 @@ struct iscsi_node_acl {
 	struct se_node_acl	se_node_acl;
 };
 
-#define NODE_STAT_GRPS(nacl)	(&(nacl)->node_stat_grps)
-
-#define ISCSI_NODE_ATTRIB(t)	(&(t)->node_attrib)
-#define ISCSI_NODE_AUTH(t)	(&(t)->node_auth)
-
 struct iscsi_tpg_attrib {
 	u32			authentication;
 	u32			login_timeout;
@@ -838,8 +833,6 @@ struct iscsi_portal_group {
 #define ISCSI_TPG_C(c)		((struct iscsi_portal_group *)(c)->tpg)
 #define ISCSI_TPG_LUN(c, l)  ((iscsi_tpg_list_t *)(c)->tpg->tpg_lun_list_t[l])
 #define ISCSI_TPG_S(s)		((struct iscsi_portal_group *)(s)->tpg)
-#define ISCSI_TPG_ATTRIB(t)	(&(t)->tpg_attrib)
-#define SE_TPG(tpg)		(&(tpg)->tpg_se_tpg)
 
 struct iscsi_wwn_stat_grps {
 	struct config_group	iscsi_stat_group;
@@ -871,8 +864,6 @@ struct iscsi_tiqn {
 	struct iscsi_logout_stats    logout_stats;
 } ____cacheline_aligned;
 
-#define WWN_STAT_GRPS(tiqn)	(&(tiqn)->tiqn_stat_grps)
-
 struct iscsit_global {
 	/* In core shutdown */
 	u32			in_shutdown;
diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c
index 14d1aed5af1d..973a27f68a68 100644
--- a/drivers/target/iscsi/iscsi_target_nego.c
+++ b/drivers/target/iscsi/iscsi_target_nego.c
@@ -140,7 +140,7 @@ static u32 iscsi_handle_authentication(
 			iscsi_nacl = container_of(se_nacl, struct iscsi_node_acl,
 						  se_node_acl);
 
-			auth = ISCSI_NODE_AUTH(iscsi_nacl);
+			auth = &iscsi_nacl->node_auth;
 		}
 	} else {
 		/*
@@ -789,7 +789,7 @@ static int iscsi_target_handle_csg_zero(
 		return -1;
 
 	if (!iscsi_check_negotiated_keys(conn->param_list)) {
-		if (ISCSI_TPG_ATTRIB(ISCSI_TPG_C(conn))->authentication &&
+		if (ISCSI_TPG_C(conn)->tpg_attrib.authentication &&
 		    !strncmp(param->value, NONE, 4)) {
 			pr_err("Initiator sent AuthMethod=None but"
 				" Target is enforcing iSCSI Authentication,"
@@ -799,7 +799,7 @@ static int iscsi_target_handle_csg_zero(
 			return -1;
 		}
 
-		if (ISCSI_TPG_ATTRIB(ISCSI_TPG_C(conn))->authentication &&
+		if (ISCSI_TPG_C(conn)->tpg_attrib.authentication &&
 		    !login->auth_complete)
 			return 0;
 
@@ -862,7 +862,7 @@ static int iscsi_target_handle_csg_one(struct iscsi_conn *conn, struct iscsi_log
 	}
 
 	if (!login->auth_complete &&
-	     ISCSI_TPG_ATTRIB(ISCSI_TPG_C(conn))->authentication) {
+	     ISCSI_TPG_C(conn)->tpg_attrib.authentication) {
 		pr_err("Initiator is requesting CSG: 1, has not been"
 			 " successfully authenticated, and the Target is"
 			" enforcing iSCSI Authentication, login failed.\n");
diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c
index 4faeb47fa5e1..1ef5df03ff5c 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.c
+++ b/drivers/target/iscsi/iscsi_target_tpg.c
@@ -237,7 +237,7 @@ int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_gro
 	if (iscsi_create_default_params(&tpg->param_list) < 0)
 		goto err_out;
 
-	ISCSI_TPG_ATTRIB(tpg)->tpg = tpg;
+	tpg->tpg_attrib.tpg = tpg;
 
 	spin_lock(&tpg->tpg_state_lock);
 	tpg->tpg_state	= TPG_STATE_INACTIVE;
@@ -330,7 +330,7 @@ int iscsit_tpg_enable_portal_group(struct iscsi_portal_group *tpg)
 		return -EINVAL;
 	}
 
-	if (ISCSI_TPG_ATTRIB(tpg)->authentication) {
+	if (tpg->tpg_attrib.authentication) {
 		if (!strcmp(param->value, NONE)) {
 			ret = iscsi_update_param_value(param, CHAP);
 			if (ret)
-- 
cgit 


From 60bfcf8e04184b8cd68607cabdf1adc142aa78d1 Mon Sep 17 00:00:00 2001
From: Andy Grover <agrover@redhat.com>
Date: Wed, 9 Oct 2013 11:05:58 -0700
Subject: target/iscsi: Remove macros that contain typecasts

These just want to return a pointer instead of a value, but are otherwise
the same.

ISCSI_TPG_LUN macro was unused.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/iscsi/iscsi_target.c       |  2 +-
 drivers/target/iscsi/iscsi_target_auth.c  |  2 +-
 drivers/target/iscsi/iscsi_target_core.h  |  4 ----
 drivers/target/iscsi/iscsi_target_erl0.c  | 10 +++++-----
 drivers/target/iscsi/iscsi_target_login.c | 16 ++++++++--------
 drivers/target/iscsi/iscsi_target_nego.c  |  6 +++---
 6 files changed, 18 insertions(+), 22 deletions(-)

diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 35b61f7d6c63..934b5b9b7cf6 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -4376,7 +4376,7 @@ int iscsit_close_connection(
 
 int iscsit_close_session(struct iscsi_session *sess)
 {
-	struct iscsi_portal_group *tpg = ISCSI_TPG_S(sess);
+	struct iscsi_portal_group *tpg = sess->tpg;
 	struct se_portal_group *se_tpg = &tpg->tpg_se_tpg;
 
 	if (atomic_read(&sess->nconn)) {
diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c
index 7505fddca15f..164b87138faf 100644
--- a/drivers/target/iscsi/iscsi_target_auth.c
+++ b/drivers/target/iscsi/iscsi_target_auth.c
@@ -111,7 +111,7 @@ static struct iscsi_chap *chap_server_open(
 	/*
 	 * Set Identifier.
 	 */
-	chap->id = ISCSI_TPG_C(conn)->tpg_chap_id++;
+	chap->id = conn->tpg->tpg_chap_id++;
 	*aic_len += sprintf(aic_str + *aic_len, "CHAP_I=%d", chap->id);
 	*aic_len += 1;
 	pr_debug("[server] Sending CHAP_I=%d\n", chap->id);
diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h
index 1d14f77aec2e..cf8a1921a392 100644
--- a/drivers/target/iscsi/iscsi_target_core.h
+++ b/drivers/target/iscsi/iscsi_target_core.h
@@ -830,10 +830,6 @@ struct iscsi_portal_group {
 	struct list_head	tpg_list;
 } ____cacheline_aligned;
 
-#define ISCSI_TPG_C(c)		((struct iscsi_portal_group *)(c)->tpg)
-#define ISCSI_TPG_LUN(c, l)  ((iscsi_tpg_list_t *)(c)->tpg->tpg_lun_list_t[l])
-#define ISCSI_TPG_S(s)		((struct iscsi_portal_group *)(s)->tpg)
-
 struct iscsi_wwn_stat_grps {
 	struct config_group	iscsi_stat_group;
 	struct config_group	iscsi_instance_group;
diff --git a/drivers/target/iscsi/iscsi_target_erl0.c b/drivers/target/iscsi/iscsi_target_erl0.c
index 41052e512d92..cbea7f16d625 100644
--- a/drivers/target/iscsi/iscsi_target_erl0.c
+++ b/drivers/target/iscsi/iscsi_target_erl0.c
@@ -757,7 +757,7 @@ int iscsit_check_post_dataout(
 static void iscsit_handle_time2retain_timeout(unsigned long data)
 {
 	struct iscsi_session *sess = (struct iscsi_session *) data;
-	struct iscsi_portal_group *tpg = ISCSI_TPG_S(sess);
+	struct iscsi_portal_group *tpg = sess->tpg;
 	struct se_portal_group *se_tpg = &tpg->tpg_se_tpg;
 
 	spin_lock_bh(&se_tpg->session_lock);
@@ -801,9 +801,9 @@ void iscsit_start_time2retain_handler(struct iscsi_session *sess)
 	 * Only start Time2Retain timer when the associated TPG is still in
 	 * an ACTIVE (eg: not disabled or shutdown) state.
 	 */
-	spin_lock(&ISCSI_TPG_S(sess)->tpg_state_lock);
-	tpg_active = (ISCSI_TPG_S(sess)->tpg_state == TPG_STATE_ACTIVE);
-	spin_unlock(&ISCSI_TPG_S(sess)->tpg_state_lock);
+	spin_lock(&sess->tpg->tpg_state_lock);
+	tpg_active = (sess->tpg->tpg_state == TPG_STATE_ACTIVE);
+	spin_unlock(&sess->tpg->tpg_state_lock);
 
 	if (!tpg_active)
 		return;
@@ -829,7 +829,7 @@ void iscsit_start_time2retain_handler(struct iscsi_session *sess)
  */
 int iscsit_stop_time2retain_timer(struct iscsi_session *sess)
 {
-	struct iscsi_portal_group *tpg = ISCSI_TPG_S(sess);
+	struct iscsi_portal_group *tpg = sess->tpg;
 	struct se_portal_group *se_tpg = &tpg->tpg_se_tpg;
 
 	if (sess->time2retain_timer_flags & ISCSI_TF_EXPIRED)
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index 1794c753954a..646632aa2002 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -347,15 +347,15 @@ static int iscsi_login_zero_tsih_s2(
 	 * Assign a new TPG Session Handle.  Note this is protected with
 	 * struct iscsi_portal_group->np_login_sem from iscsit_access_np().
 	 */
-	sess->tsih = ++ISCSI_TPG_S(sess)->ntsih;
+	sess->tsih = ++sess->tpg->ntsih;
 	if (!sess->tsih)
-		sess->tsih = ++ISCSI_TPG_S(sess)->ntsih;
+		sess->tsih = ++sess->tpg->ntsih;
 
 	/*
 	 * Create the default params from user defined values..
 	 */
 	if (iscsi_copy_param_list(&conn->param_list,
-				ISCSI_TPG_C(conn)->param_list, 1) < 0) {
+				conn->tpg->param_list, 1) < 0) {
 		iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
 				ISCSI_LOGIN_STATUS_NO_RESOURCES);
 		return -1;
@@ -380,7 +380,7 @@ static int iscsi_login_zero_tsih_s2(
 	 * In our case, we have already located the struct iscsi_tiqn at this point.
 	 */
 	memset(buf, 0, 32);
-	sprintf(buf, "TargetPortalGroupTag=%hu", ISCSI_TPG_S(sess)->tpgt);
+	sprintf(buf, "TargetPortalGroupTag=%hu", sess->tpg->tpgt);
 	if (iscsi_change_param_value(buf, conn->param_list, 0) < 0) {
 		iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
 				ISCSI_LOGIN_STATUS_NO_RESOURCES);
@@ -575,7 +575,7 @@ static int iscsi_login_non_zero_tsih_s2(
 	iscsi_login_set_conn_values(sess, conn, pdu->cid);
 
 	if (iscsi_copy_param_list(&conn->param_list,
-			ISCSI_TPG_C(conn)->param_list, 0) < 0) {
+			conn->tpg->param_list, 0) < 0) {
 		iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
 				ISCSI_LOGIN_STATUS_NO_RESOURCES);
 		return -1;
@@ -593,7 +593,7 @@ static int iscsi_login_non_zero_tsih_s2(
 	 * In our case, we have already located the struct iscsi_tiqn at this point.
 	 */
 	memset(buf, 0, 32);
-	sprintf(buf, "TargetPortalGroupTag=%hu", ISCSI_TPG_S(sess)->tpgt);
+	sprintf(buf, "TargetPortalGroupTag=%hu", sess->tpg->tpgt);
 	if (iscsi_change_param_value(buf, conn->param_list, 0) < 0) {
 		iscsit_tx_login_rsp(conn, ISCSI_STATUS_CLS_TARGET_ERR,
 				ISCSI_LOGIN_STATUS_NO_RESOURCES);
@@ -691,7 +691,7 @@ int iscsi_post_login_handler(
 	int stop_timer = 0;
 	struct iscsi_session *sess = conn->sess;
 	struct se_session *se_sess = sess->se_sess;
-	struct iscsi_portal_group *tpg = ISCSI_TPG_S(sess);
+	struct iscsi_portal_group *tpg = sess->tpg;
 	struct se_portal_group *se_tpg = &tpg->tpg_se_tpg;
 	struct iscsi_thread_set *ts;
 
@@ -1154,7 +1154,7 @@ old_sess_out:
 		spin_lock_bh(&conn->sess->conn_lock);
 		if (conn->sess->session_state == TARG_SESS_STATE_FAILED) {
 			struct se_portal_group *se_tpg =
-					&ISCSI_TPG_C(conn)->tpg_se_tpg;
+					&conn->tpg->tpg_se_tpg;
 
 			atomic_set(&conn->sess->session_continuation, 0);
 			spin_unlock_bh(&conn->sess->conn_lock);
diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c
index 973a27f68a68..21265c9c12b5 100644
--- a/drivers/target/iscsi/iscsi_target_nego.c
+++ b/drivers/target/iscsi/iscsi_target_nego.c
@@ -789,7 +789,7 @@ static int iscsi_target_handle_csg_zero(
 		return -1;
 
 	if (!iscsi_check_negotiated_keys(conn->param_list)) {
-		if (ISCSI_TPG_C(conn)->tpg_attrib.authentication &&
+		if (conn->tpg->tpg_attrib.authentication &&
 		    !strncmp(param->value, NONE, 4)) {
 			pr_err("Initiator sent AuthMethod=None but"
 				" Target is enforcing iSCSI Authentication,"
@@ -799,7 +799,7 @@ static int iscsi_target_handle_csg_zero(
 			return -1;
 		}
 
-		if (ISCSI_TPG_C(conn)->tpg_attrib.authentication &&
+		if (conn->tpg->tpg_attrib.authentication &&
 		    !login->auth_complete)
 			return 0;
 
@@ -862,7 +862,7 @@ static int iscsi_target_handle_csg_one(struct iscsi_conn *conn, struct iscsi_log
 	}
 
 	if (!login->auth_complete &&
-	     ISCSI_TPG_C(conn)->tpg_attrib.authentication) {
+	     conn->tpg->tpg_attrib.authentication) {
 		pr_err("Initiator is requesting CSG: 1, has not been"
 			 " successfully authenticated, and the Target is"
 			" enforcing iSCSI Authentication, login failed.\n");
-- 
cgit 


From a309f489608f09c5053a2fb4ae8e3d849adb2b33 Mon Sep 17 00:00:00 2001
From: Andy Grover <agrover@redhat.com>
Date: Wed, 9 Oct 2013 11:05:59 -0700
Subject: target/qla2xxx: Remove QLA_TPG_ATTRIB macro

Just a dereference, don't need a macro.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/scsi/qla2xxx/tcm_qla2xxx.c | 20 ++++++++++----------
 drivers/scsi/qla2xxx/tcm_qla2xxx.h |  2 --
 2 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
index 92b1654f8e20..7eb19be35d46 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
@@ -330,7 +330,7 @@ static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg)
 	struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
 				struct tcm_qla2xxx_tpg, se_tpg);
 
-	return QLA_TPG_ATTRIB(tpg)->generate_node_acls;
+	return tpg->tpg_attrib.generate_node_acls;
 }
 
 static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg)
@@ -338,7 +338,7 @@ static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg)
 	struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
 				struct tcm_qla2xxx_tpg, se_tpg);
 
-	return QLA_TPG_ATTRIB(tpg)->cache_dynamic_acls;
+	return tpg->tpg_attrib.cache_dynamic_acls;
 }
 
 static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg)
@@ -346,7 +346,7 @@ static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg)
 	struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
 				struct tcm_qla2xxx_tpg, se_tpg);
 
-	return QLA_TPG_ATTRIB(tpg)->demo_mode_write_protect;
+	return tpg->tpg_attrib.demo_mode_write_protect;
 }
 
 static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg)
@@ -354,7 +354,7 @@ static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg)
 	struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
 				struct tcm_qla2xxx_tpg, se_tpg);
 
-	return QLA_TPG_ATTRIB(tpg)->prod_mode_write_protect;
+	return tpg->tpg_attrib.prod_mode_write_protect;
 }
 
 static int tcm_qla2xxx_check_demo_mode_login_only(struct se_portal_group *se_tpg)
@@ -362,7 +362,7 @@ static int tcm_qla2xxx_check_demo_mode_login_only(struct se_portal_group *se_tpg
 	struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
 				struct tcm_qla2xxx_tpg, se_tpg);
 
-	return QLA_TPG_ATTRIB(tpg)->demo_mode_login_only;
+	return tpg->tpg_attrib.demo_mode_login_only;
 }
 
 static struct se_node_acl *tcm_qla2xxx_alloc_fabric_acl(
@@ -847,7 +847,7 @@ static ssize_t tcm_qla2xxx_tpg_attrib_show_##name(			\
 	struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,		\
 			struct tcm_qla2xxx_tpg, se_tpg);		\
 									\
-	return sprintf(page, "%u\n", QLA_TPG_ATTRIB(tpg)->name);	\
+	return sprintf(page, "%u\n", tpg->tpg_attrib.name);	\
 }									\
 									\
 static ssize_t tcm_qla2xxx_tpg_attrib_store_##name(			\
@@ -1027,10 +1027,10 @@ static struct se_portal_group *tcm_qla2xxx_make_tpg(
 	 * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic
 	 * NodeACLs
 	 */
-	QLA_TPG_ATTRIB(tpg)->generate_node_acls = 1;
-	QLA_TPG_ATTRIB(tpg)->demo_mode_write_protect = 1;
-	QLA_TPG_ATTRIB(tpg)->cache_dynamic_acls = 1;
-	QLA_TPG_ATTRIB(tpg)->demo_mode_login_only = 1;
+	tpg->tpg_attrib.generate_node_acls = 1;
+	tpg->tpg_attrib.demo_mode_write_protect = 1;
+	tpg->tpg_attrib.cache_dynamic_acls = 1;
+	tpg->tpg_attrib.demo_mode_login_only = 1;
 
 	ret = core_tpg_register(&tcm_qla2xxx_fabric_configfs->tf_ops, wwn,
 				&tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL);
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.h b/drivers/scsi/qla2xxx/tcm_qla2xxx.h
index 329327528a55..771f7b816443 100644
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.h
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.h
@@ -45,8 +45,6 @@ struct tcm_qla2xxx_tpg {
 	struct se_portal_group se_tpg;
 };
 
-#define QLA_TPG_ATTRIB(tpg)	(&(tpg)->tpg_attrib)
-
 struct tcm_qla2xxx_fc_loopid {
 	struct se_node_acl *se_nacl;
 };
-- 
cgit 


From 5b32c385bef17fd3d3b8ce7d5af2ee2aa2225ff5 Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Mon, 14 Oct 2013 21:46:36 +0200
Subject: drivers: usb: core: devio.c: Spaces to tabs for
 proc_reapurbnonblock()

Replaced spaces by tabs for proc_reapurbnonblock() function.

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/devio.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index bd429eaf6ea3..c697463e15dd 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -1634,14 +1634,14 @@ static int proc_reapurbnonblock(struct dev_state *ps, void __user *arg)
 static int proc_control_compat(struct dev_state *ps,
 				struct usbdevfs_ctrltransfer32 __user *p32)
 {
-        struct usbdevfs_ctrltransfer __user *p;
-        __u32 udata;
-        p = compat_alloc_user_space(sizeof(*p));
-        if (copy_in_user(p, p32, (sizeof(*p32) - sizeof(compat_caddr_t))) ||
-            get_user(udata, &p32->data) ||
+	struct usbdevfs_ctrltransfer __user *p;
+	__u32 udata;
+	p = compat_alloc_user_space(sizeof(*p));
+	if (copy_in_user(p, p32, (sizeof(*p32) - sizeof(compat_caddr_t))) ||
+	    get_user(udata, &p32->data) ||
 	    put_user(compat_ptr(udata), &p->data))
 		return -EFAULT;
-        return proc_control(ps, p);
+	return proc_control(ps, p);
 }
 
 static int proc_bulk_compat(struct dev_state *ps,
-- 
cgit 


From 06793f2d0cf9daabeeb5b024d4bf7082dcc71505 Mon Sep 17 00:00:00 2001
From: Matthias Beyer <mail@beyermatthias.de>
Date: Mon, 14 Oct 2013 21:46:37 +0200
Subject: drivers: usb: core: devio.c: Spaces to tabs for proc_control_compat()

Replaced spaces by tabs for proc_control_compat() function.

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/devio.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index c697463e15dd..967152a63bd3 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -1647,19 +1647,19 @@ static int proc_control_compat(struct dev_state *ps,
 static int proc_bulk_compat(struct dev_state *ps,
 			struct usbdevfs_bulktransfer32 __user *p32)
 {
-        struct usbdevfs_bulktransfer __user *p;
-        compat_uint_t n;
-        compat_caddr_t addr;
+	struct usbdevfs_bulktransfer __user *p;
+	compat_uint_t n;
+	compat_caddr_t addr;
 
-        p = compat_alloc_user_space(sizeof(*p));
+	p = compat_alloc_user_space(sizeof(*p));
 
-        if (get_user(n, &p32->ep) || put_user(n, &p->ep) ||
-            get_user(n, &p32->len) || put_user(n, &p->len) ||
-            get_user(n, &p32->timeout) || put_user(n, &p->timeout) ||
-            get_user(addr, &p32->data) || put_user(compat_ptr(addr), &p->data))
-                return -EFAULT;
+	if (get_user(n, &p32->ep) || put_user(n, &p->ep) ||
+	    get_user(n, &p32->len) || put_user(n, &p->len) ||
+	    get_user(n, &p32->timeout) || put_user(n, &p->timeout) ||
+	    get_user(addr, &p32->data) || put_user(compat_ptr(addr), &p->data))
+		return -EFAULT;
 
-        return proc_bulk(ps, p);
+	return proc_bulk(ps, p);
 }
 static int proc_disconnectsignal_compat(struct dev_state *ps, void __user *arg)
 {
-- 
cgit 


From 1ec59fee296d798b83a11f888981531dae16bfe8 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Wed, 16 Oct 2013 09:12:52 +0200
Subject: tcm_loop: Check for valid hba in tcm_loop_drop_nexus()

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/loopback/tcm_loop.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 150bdb426fc4..21b49f351723 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -932,7 +932,10 @@ static int tcm_loop_drop_nexus(
 	struct tcm_loop_nexus *tl_nexus;
 	struct tcm_loop_hba *tl_hba = tpg->tl_hba;
 
-	tl_nexus = tpg->tl_hba->tl_nexus;
+	if (!tl_hba)
+		return -ENODEV;
+
+	tl_nexus = tl_hba->tl_nexus;
 	if (!tl_nexus)
 		return -ENODEV;
 
-- 
cgit 


From e92aee330837e4911553761490a8fb843f2053a6 Mon Sep 17 00:00:00 2001
From: Julius Werner <jwerner@chromium.org>
Date: Tue, 15 Oct 2013 17:45:00 -0700
Subject: usb: hub: Clear Port Reset Change during init/resume

This patch adds the Port Reset Change flag to the set of bits that are
preemptively cleared on init/resume of a hub. In theory this bit should
never be set unexpectedly... in practice it can still happen if BIOS,
SMM or ACPI code plays around with USB devices without cleaning up
correctly. This is especially dangerous for XHCI root hubs, which don't
generate any more Port Status Change Events until all change bits are
cleared, so this is a good precaution to have (similar to how it's
already done for the Warm Port Reset Change flag).

Signed-off-by: Julius Werner <jwerner@chromium.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/hub.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 3f8933f10e7d..92dde941fdbe 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1135,6 +1135,11 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
 			usb_clear_port_feature(hub->hdev, port1,
 					USB_PORT_FEAT_C_ENABLE);
 		}
+		if (portchange & USB_PORT_STAT_C_RESET) {
+			need_debounce_delay = true;
+			usb_clear_port_feature(hub->hdev, port1,
+					USB_PORT_FEAT_C_RESET);
+		}
 		if ((portchange & USB_PORT_STAT_C_BH_RESET) &&
 				hub_is_superspeed(hub->hdev)) {
 			need_debounce_delay = true;
-- 
cgit 


From 069d2e26e9d64ba7e04c2c255efdfd1238789ca6 Mon Sep 17 00:00:00 2001
From: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Date: Wed, 16 Oct 2013 21:58:10 +0530
Subject: phy: Add driver for Exynos MIPI CSIS/DSIM DPHYs

Add a PHY provider driver for the Samsung S5P/Exynos SoC MIPI CSI-2
receiver and MIPI DSI transmitter DPHYs.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../devicetree/bindings/phy/samsung-phy.txt        |  14 ++
 drivers/phy/Kconfig                                |   6 +
 drivers/phy/Makefile                               |   7 +-
 drivers/phy/phy-exynos-mipi-video.c                | 176 +++++++++++++++++++++
 4 files changed, 200 insertions(+), 3 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/phy/samsung-phy.txt
 create mode 100644 drivers/phy/phy-exynos-mipi-video.c

diff --git a/Documentation/devicetree/bindings/phy/samsung-phy.txt b/Documentation/devicetree/bindings/phy/samsung-phy.txt
new file mode 100644
index 000000000000..5ff208c7f1f2
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/samsung-phy.txt
@@ -0,0 +1,14 @@
+Samsung S5P/EXYNOS SoC series MIPI CSIS/DSIM DPHY
+-------------------------------------------------
+
+Required properties:
+- compatible : should be "samsung,s5pv210-mipi-video-phy";
+- reg : offset and length of the MIPI DPHY register set;
+- #phy-cells : from the generic phy bindings, must be 1;
+
+For "samsung,s5pv210-mipi-video-phy" compatible PHYs the second cell in
+the PHY specifier identifies the PHY and its meaning is as follows:
+  0 - MIPI CSIS 0,
+  1 - MIPI DSIM 0,
+  2 - MIPI CSIS 1,
+  3 - MIPI DSIM 1.
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index ac239aca77ec..0062d7e60dbe 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -15,6 +15,12 @@ config GENERIC_PHY
 	  phy users can obtain reference to the PHY. All the users of this
 	  framework should select this config.
 
+config PHY_EXYNOS_MIPI_VIDEO
+	tristate "S5P/EXYNOS SoC series MIPI CSI-2/DSI PHY driver"
+	help
+	  Support for MIPI CSI-2 and MIPI DSI DPHY found on Samsung S5P
+	  and EXYNOS SoCs.
+
 config OMAP_USB2
 	tristate "OMAP USB2 PHY Driver"
 	depends on ARCH_OMAP2PLUS
diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
index 0dd8a9834548..6344053661f4 100644
--- a/drivers/phy/Makefile
+++ b/drivers/phy/Makefile
@@ -2,6 +2,7 @@
 # Makefile for the phy drivers.
 #
 
-obj-$(CONFIG_GENERIC_PHY)	+= phy-core.o
-obj-$(CONFIG_OMAP_USB2)		+= phy-omap-usb2.o
-obj-$(CONFIG_TWL4030_USB)	+= phy-twl4030-usb.o
+obj-$(CONFIG_GENERIC_PHY)		+= phy-core.o
+obj-$(CONFIG_PHY_EXYNOS_MIPI_VIDEO)	+= phy-exynos-mipi-video.o
+obj-$(CONFIG_OMAP_USB2)			+= phy-omap-usb2.o
+obj-$(CONFIG_TWL4030_USB)		+= phy-twl4030-usb.o
diff --git a/drivers/phy/phy-exynos-mipi-video.c b/drivers/phy/phy-exynos-mipi-video.c
new file mode 100644
index 000000000000..b73b86ab4697
--- /dev/null
+++ b/drivers/phy/phy-exynos-mipi-video.c
@@ -0,0 +1,176 @@
+/*
+ * Samsung S5P/EXYNOS SoC series MIPI CSIS/DSIM DPHY driver
+ *
+ * Copyright (C) 2013 Samsung Electronics Co., Ltd.
+ * Author: Sylwester Nawrocki <s.nawrocki@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+
+/* MIPI_PHYn_CONTROL register offset: n = 0..1 */
+#define EXYNOS_MIPI_PHY_CONTROL(n)	((n) * 4)
+#define EXYNOS_MIPI_PHY_ENABLE		(1 << 0)
+#define EXYNOS_MIPI_PHY_SRESETN		(1 << 1)
+#define EXYNOS_MIPI_PHY_MRESETN		(1 << 2)
+#define EXYNOS_MIPI_PHY_RESET_MASK	(3 << 1)
+
+enum exynos_mipi_phy_id {
+	EXYNOS_MIPI_PHY_ID_CSIS0,
+	EXYNOS_MIPI_PHY_ID_DSIM0,
+	EXYNOS_MIPI_PHY_ID_CSIS1,
+	EXYNOS_MIPI_PHY_ID_DSIM1,
+	EXYNOS_MIPI_PHYS_NUM
+};
+
+#define is_mipi_dsim_phy_id(id) \
+	((id) == EXYNOS_MIPI_PHY_ID_DSIM0 || (id) == EXYNOS_MIPI_PHY_ID_DSIM1)
+
+struct exynos_mipi_video_phy {
+	spinlock_t slock;
+	struct video_phy_desc {
+		struct phy *phy;
+		unsigned int index;
+	} phys[EXYNOS_MIPI_PHYS_NUM];
+	void __iomem *regs;
+};
+
+static int __set_phy_state(struct exynos_mipi_video_phy *state,
+			enum exynos_mipi_phy_id id, unsigned int on)
+{
+	void __iomem *addr;
+	u32 reg, reset;
+
+	addr = state->regs + EXYNOS_MIPI_PHY_CONTROL(id / 2);
+
+	if (is_mipi_dsim_phy_id(id))
+		reset = EXYNOS_MIPI_PHY_MRESETN;
+	else
+		reset = EXYNOS_MIPI_PHY_SRESETN;
+
+	spin_lock(&state->slock);
+	reg = readl(addr);
+	if (on)
+		reg |= reset;
+	else
+		reg &= ~reset;
+	writel(reg, addr);
+
+	/* Clear ENABLE bit only if MRESETN, SRESETN bits are not set. */
+	if (on)
+		reg |= EXYNOS_MIPI_PHY_ENABLE;
+	else if (!(reg & EXYNOS_MIPI_PHY_RESET_MASK))
+		reg &= ~EXYNOS_MIPI_PHY_ENABLE;
+
+	writel(reg, addr);
+	spin_unlock(&state->slock);
+	return 0;
+}
+
+#define to_mipi_video_phy(desc) \
+	container_of((desc), struct exynos_mipi_video_phy, phys[(desc)->index]);
+
+static int exynos_mipi_video_phy_power_on(struct phy *phy)
+{
+	struct video_phy_desc *phy_desc = phy_get_drvdata(phy);
+	struct exynos_mipi_video_phy *state = to_mipi_video_phy(phy_desc);
+
+	return __set_phy_state(state, phy_desc->index, 1);
+}
+
+static int exynos_mipi_video_phy_power_off(struct phy *phy)
+{
+	struct video_phy_desc *phy_desc = phy_get_drvdata(phy);
+	struct exynos_mipi_video_phy *state = to_mipi_video_phy(phy_desc);
+
+	return __set_phy_state(state, phy_desc->index, 1);
+}
+
+static struct phy *exynos_mipi_video_phy_xlate(struct device *dev,
+					struct of_phandle_args *args)
+{
+	struct exynos_mipi_video_phy *state = dev_get_drvdata(dev);
+
+	if (WARN_ON(args->args[0] > EXYNOS_MIPI_PHYS_NUM))
+		return ERR_PTR(-ENODEV);
+
+	return state->phys[args->args[0]].phy;
+}
+
+static struct phy_ops exynos_mipi_video_phy_ops = {
+	.power_on	= exynos_mipi_video_phy_power_on,
+	.power_off	= exynos_mipi_video_phy_power_off,
+	.owner		= THIS_MODULE,
+};
+
+static int exynos_mipi_video_phy_probe(struct platform_device *pdev)
+{
+	struct exynos_mipi_video_phy *state;
+	struct device *dev = &pdev->dev;
+	struct resource *res;
+	struct phy_provider *phy_provider;
+	unsigned int i;
+
+	state = devm_kzalloc(dev, sizeof(*state), GFP_KERNEL);
+	if (!state)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	state->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(state->regs))
+		return PTR_ERR(state->regs);
+
+	dev_set_drvdata(dev, state);
+	spin_lock_init(&state->slock);
+
+	phy_provider = devm_of_phy_provider_register(dev,
+					exynos_mipi_video_phy_xlate);
+	if (IS_ERR(phy_provider))
+		return PTR_ERR(phy_provider);
+
+	for (i = 0; i < EXYNOS_MIPI_PHYS_NUM; i++) {
+		struct phy *phy = devm_phy_create(dev,
+					&exynos_mipi_video_phy_ops, NULL);
+		if (IS_ERR(phy)) {
+			dev_err(dev, "failed to create PHY %d\n", i);
+			return PTR_ERR(phy);
+		}
+
+		state->phys[i].phy = phy;
+		state->phys[i].index = i;
+		phy_set_drvdata(phy, &state->phys[i]);
+	}
+
+	return 0;
+}
+
+static const struct of_device_id exynos_mipi_video_phy_of_match[] = {
+	{ .compatible = "samsung,s5pv210-mipi-video-phy" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, exynos_mipi_video_phy_of_match);
+
+static struct platform_driver exynos_mipi_video_phy_driver = {
+	.probe	= exynos_mipi_video_phy_probe,
+	.driver = {
+		.of_match_table	= exynos_mipi_video_phy_of_match,
+		.name  = "exynos-mipi-video-phy",
+		.owner = THIS_MODULE,
+	}
+};
+module_platform_driver(exynos_mipi_video_phy_driver);
+
+MODULE_DESCRIPTION("Samsung S5P/EXYNOS SoC MIPI CSI-2/DSI PHY driver");
+MODULE_AUTHOR("Sylwester Nawrocki <s.nawrocki@samsung.com>");
+MODULE_LICENSE("GPL v2");
-- 
cgit 


From f1468a2077e8c00fddb6cecec41b356637195ca3 Mon Sep 17 00:00:00 2001
From: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Date: Wed, 16 Oct 2013 21:58:11 +0530
Subject: exynos4-is: Use the generic MIPI CSIS PHY driver

Use the generic PHY API instead of the platform callback
to control the MIPI CSIS DPHY.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/media/platform/exynos4-is/Kconfig     |  2 +-
 drivers/media/platform/exynos4-is/mipi-csis.c | 13 ++++++++++---
 include/linux/platform_data/mipi-csis.h       |  9 ---------
 3 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/drivers/media/platform/exynos4-is/Kconfig b/drivers/media/platform/exynos4-is/Kconfig
index 53ad0f080179..d2d3b4b61435 100644
--- a/drivers/media/platform/exynos4-is/Kconfig
+++ b/drivers/media/platform/exynos4-is/Kconfig
@@ -29,7 +29,7 @@ config VIDEO_S5P_FIMC
 config VIDEO_S5P_MIPI_CSIS
 	tristate "S5P/EXYNOS MIPI-CSI2 receiver (MIPI-CSIS) driver"
 	depends on REGULATOR
-	select S5P_SETUP_MIPIPHY
+	select GENERIC_PHY
 	help
 	  This is a V4L2 driver for Samsung S5P and EXYNOS4 SoC MIPI-CSI2
 	  receiver (MIPI-CSIS) devices.
diff --git a/drivers/media/platform/exynos4-is/mipi-csis.c b/drivers/media/platform/exynos4-is/mipi-csis.c
index 0914230b42de..9fc2af6a0446 100644
--- a/drivers/media/platform/exynos4-is/mipi-csis.c
+++ b/drivers/media/platform/exynos4-is/mipi-csis.c
@@ -20,6 +20,7 @@
 #include <linux/memory.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/phy/phy.h>
 #include <linux/platform_data/mipi-csis.h>
 #include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
@@ -180,6 +181,7 @@ struct csis_drvdata {
  * @sd: v4l2_subdev associated with CSIS device instance
  * @index: the hardware instance index
  * @pdev: CSIS platform device
+ * @phy: pointer to the CSIS generic PHY
  * @regs: mmaped I/O registers memory
  * @supplies: CSIS regulator supplies
  * @clock: CSIS clocks
@@ -203,6 +205,7 @@ struct csis_state {
 	struct v4l2_subdev sd;
 	u8 index;
 	struct platform_device *pdev;
+	struct phy *phy;
 	void __iomem *regs;
 	struct regulator_bulk_data supplies[CSIS_NUM_SUPPLIES];
 	struct clk *clock[NUM_CSIS_CLOCKS];
@@ -779,8 +782,8 @@ static int s5pcsis_parse_dt(struct platform_device *pdev,
 					"samsung,csis-wclk");
 
 	state->num_lanes = endpoint.bus.mipi_csi2.num_data_lanes;
-
 	of_node_put(node);
+
 	return 0;
 }
 #else
@@ -829,6 +832,10 @@ static int s5pcsis_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
+	state->phy = devm_phy_get(dev, "csis");
+	if (IS_ERR(state->phy))
+		return PTR_ERR(state->phy);
+
 	mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	state->regs = devm_ioremap_resource(dev, mem_res);
 	if (IS_ERR(state->regs))
@@ -922,7 +929,7 @@ static int s5pcsis_pm_suspend(struct device *dev, bool runtime)
 	mutex_lock(&state->lock);
 	if (state->flags & ST_POWERED) {
 		s5pcsis_stop_stream(state);
-		ret = s5p_csis_phy_enable(state->index, false);
+		ret = phy_power_off(state->phy);
 		if (ret)
 			goto unlock;
 		ret = regulator_bulk_disable(CSIS_NUM_SUPPLIES,
@@ -958,7 +965,7 @@ static int s5pcsis_pm_resume(struct device *dev, bool runtime)
 					    state->supplies);
 		if (ret)
 			goto unlock;
-		ret = s5p_csis_phy_enable(state->index, true);
+		ret = phy_power_on(state->phy);
 		if (!ret) {
 			state->flags |= ST_POWERED;
 		} else {
diff --git a/include/linux/platform_data/mipi-csis.h b/include/linux/platform_data/mipi-csis.h
index bf34e17cee7f..c2fd9024717c 100644
--- a/include/linux/platform_data/mipi-csis.h
+++ b/include/linux/platform_data/mipi-csis.h
@@ -25,13 +25,4 @@ struct s5p_platform_mipi_csis {
 	u8 hs_settle;
 };
 
-/**
- * s5p_csis_phy_enable - global MIPI-CSI receiver D-PHY control
- * @id:     MIPI-CSIS harware instance index (0...1)
- * @on:     true to enable D-PHY and deassert its reset
- *          false to disable D-PHY
- * @return: 0 on success, or negative error code on failure
- */
-int s5p_csis_phy_enable(int id, bool on);
-
 #endif /* __PLAT_SAMSUNG_MIPI_CSIS_H_ */
-- 
cgit 


From 7e0be9f9f7cba3356f75b86737dbe3a005da067e Mon Sep 17 00:00:00 2001
From: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Date: Wed, 16 Oct 2013 21:58:12 +0530
Subject: video: exynos_mipi_dsim: Use the generic PHY driver

Use the generic PHY API instead of the platform callback
for the MIPI DSIM DPHY enable/reset control.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Donghwa Lee <dh09.lee@samsung.com>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/video/exynos/Kconfig           |  1 +
 drivers/video/exynos/exynos_mipi_dsi.c | 19 ++++++++++---------
 include/video/exynos_mipi_dsim.h       |  5 ++---
 3 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/drivers/video/exynos/Kconfig b/drivers/video/exynos/Kconfig
index 1b035b2eb6b6..976594d578a9 100644
--- a/drivers/video/exynos/Kconfig
+++ b/drivers/video/exynos/Kconfig
@@ -16,6 +16,7 @@ if EXYNOS_VIDEO
 config EXYNOS_MIPI_DSI
 	bool "EXYNOS MIPI DSI driver support."
 	depends on ARCH_S5PV210 || ARCH_EXYNOS
+	select GENERIC_PHY
 	help
 	  This enables support for MIPI-DSI device.
 
diff --git a/drivers/video/exynos/exynos_mipi_dsi.c b/drivers/video/exynos/exynos_mipi_dsi.c
index 32e540600f99..00b3a52c1d68 100644
--- a/drivers/video/exynos/exynos_mipi_dsi.c
+++ b/drivers/video/exynos/exynos_mipi_dsi.c
@@ -30,6 +30,7 @@
 #include <linux/interrupt.h>
 #include <linux/kthread.h>
 #include <linux/notifier.h>
+#include <linux/phy/phy.h>
 #include <linux/regulator/consumer.h>
 #include <linux/pm_runtime.h>
 #include <linux/err.h>
@@ -156,8 +157,7 @@ static int exynos_mipi_dsi_blank_mode(struct mipi_dsim_device *dsim, int power)
 		exynos_mipi_regulator_enable(dsim);
 
 		/* enable MIPI-DSI PHY. */
-		if (dsim->pd->phy_enable)
-			dsim->pd->phy_enable(pdev, true);
+		phy_power_on(dsim->phy);
 
 		clk_enable(dsim->clock);
 
@@ -373,6 +373,10 @@ static int exynos_mipi_dsi_probe(struct platform_device *pdev)
 		return ret;
 	}
 
+	dsim->phy = devm_phy_get(&pdev->dev, "dsim");
+	if (IS_ERR(dsim->phy))
+		return PTR_ERR(dsim->phy);
+
 	dsim->clock = devm_clk_get(&pdev->dev, "dsim0");
 	if (IS_ERR(dsim->clock)) {
 		dev_err(&pdev->dev, "failed to get dsim clock source\n");
@@ -439,8 +443,7 @@ static int exynos_mipi_dsi_probe(struct platform_device *pdev)
 	exynos_mipi_regulator_enable(dsim);
 
 	/* enable MIPI-DSI PHY. */
-	if (dsim->pd->phy_enable)
-		dsim->pd->phy_enable(pdev, true);
+	phy_power_on(dsim->phy);
 
 	exynos_mipi_update_cfg(dsim);
 
@@ -504,9 +507,8 @@ static int exynos_mipi_dsi_suspend(struct device *dev)
 	if (client_drv && client_drv->suspend)
 		client_drv->suspend(client_dev);
 
-	/* enable MIPI-DSI PHY. */
-	if (dsim->pd->phy_enable)
-		dsim->pd->phy_enable(pdev, false);
+	/* disable MIPI-DSI PHY. */
+	phy_power_off(dsim->phy);
 
 	clk_disable(dsim->clock);
 
@@ -536,8 +538,7 @@ static int exynos_mipi_dsi_resume(struct device *dev)
 	exynos_mipi_regulator_enable(dsim);
 
 	/* enable MIPI-DSI PHY. */
-	if (dsim->pd->phy_enable)
-		dsim->pd->phy_enable(pdev, true);
+	phy_power_on(dsim->phy);
 
 	clk_enable(dsim->clock);
 
diff --git a/include/video/exynos_mipi_dsim.h b/include/video/exynos_mipi_dsim.h
index 89dc88a171af..6a578f8a1b3e 100644
--- a/include/video/exynos_mipi_dsim.h
+++ b/include/video/exynos_mipi_dsim.h
@@ -216,6 +216,7 @@ struct mipi_dsim_config {
  *	automatically.
  * @e_clk_src: select byte clock source.
  * @pd: pointer to MIPI-DSI driver platform data.
+ * @phy: pointer to the MIPI-DSI PHY
  */
 struct mipi_dsim_device {
 	struct device			*dev;
@@ -236,6 +237,7 @@ struct mipi_dsim_device {
 	bool				suspended;
 
 	struct mipi_dsim_platform_data	*pd;
+	struct phy			*phy;
 };
 
 /*
@@ -248,7 +250,6 @@ struct mipi_dsim_device {
  * @enabled: indicate whether mipi controller got enabled or not.
  * @lcd_panel_info: pointer for lcd panel specific structure.
  *	this structure specifies width, height, timing and polarity and so on.
- * @phy_enable: pointer to a callback controlling D-PHY enable/reset
  */
 struct mipi_dsim_platform_data {
 	char				lcd_panel_name[PANEL_NAME_SIZE];
@@ -256,8 +257,6 @@ struct mipi_dsim_platform_data {
 	struct mipi_dsim_config		*dsim_config;
 	unsigned int			enabled;
 	void				*lcd_panel_info;
-
-	int (*phy_enable)(struct platform_device *pdev, bool on);
 };
 
 /*
-- 
cgit 


From e66f233dc7f7aef51d82cac1b93b46f7c9bf42ef Mon Sep 17 00:00:00 2001
From: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Date: Wed, 16 Oct 2013 21:58:13 +0530
Subject: ARM: Samsung: Remove the MIPI PHY setup code

Generic PHY drivers are used to handle the MIPI CSIS and MIPI DSIM
DPHYs so we can remove now unused code at arch/arm/plat-samsung.
In case there is any board file for S5PV210 platforms using MIPI
CSIS/DSIM (not any upstream currently) it should use the generic
PHY API to bind the PHYs to respective PHY consumer drivers and
a platform device for the PHY provider should be defined.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/mach-exynos/include/mach/regs-pmu.h    |  5 ---
 arch/arm/mach-s5pv210/include/mach/regs-clock.h |  4 --
 arch/arm/plat-samsung/Kconfig                   |  5 ---
 arch/arm/plat-samsung/Makefile                  |  1 -
 arch/arm/plat-samsung/setup-mipiphy.c           | 60 -------------------------
 5 files changed, 75 deletions(-)
 delete mode 100644 arch/arm/plat-samsung/setup-mipiphy.c

diff --git a/arch/arm/mach-exynos/include/mach/regs-pmu.h b/arch/arm/mach-exynos/include/mach/regs-pmu.h
index 57344b7e98ce..2cdb63e8ce5c 100644
--- a/arch/arm/mach-exynos/include/mach/regs-pmu.h
+++ b/arch/arm/mach-exynos/include/mach/regs-pmu.h
@@ -44,11 +44,6 @@
 #define S5P_DAC_PHY_CONTROL			S5P_PMUREG(0x070C)
 #define S5P_DAC_PHY_ENABLE			(1 << 0)
 
-#define S5P_MIPI_DPHY_CONTROL(n)		S5P_PMUREG(0x0710 + (n) * 4)
-#define S5P_MIPI_DPHY_ENABLE			(1 << 0)
-#define S5P_MIPI_DPHY_SRESETN			(1 << 1)
-#define S5P_MIPI_DPHY_MRESETN			(1 << 2)
-
 #define S5P_INFORM0				S5P_PMUREG(0x0800)
 #define S5P_INFORM1				S5P_PMUREG(0x0804)
 #define S5P_INFORM2				S5P_PMUREG(0x0808)
diff --git a/arch/arm/mach-s5pv210/include/mach/regs-clock.h b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
index 032de66fb8be..e345584d4c34 100644
--- a/arch/arm/mach-s5pv210/include/mach/regs-clock.h
+++ b/arch/arm/mach-s5pv210/include/mach/regs-clock.h
@@ -147,10 +147,6 @@
 #define S5P_HDMI_PHY_CONTROL	S5P_CLKREG(0xE804)
 #define S5P_USB_PHY_CONTROL	S5P_CLKREG(0xE80C)
 #define S5P_DAC_PHY_CONTROL	S5P_CLKREG(0xE810)
-#define S5P_MIPI_DPHY_CONTROL(x) S5P_CLKREG(0xE814)
-#define S5P_MIPI_DPHY_ENABLE	(1 << 0)
-#define S5P_MIPI_DPHY_SRESETN	(1 << 1)
-#define S5P_MIPI_DPHY_MRESETN	(1 << 2)
 
 #define S5P_INFORM0		S5P_CLKREG(0xF000)
 #define S5P_INFORM1		S5P_CLKREG(0xF004)
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index 99bfbb388e32..6d95d60276d6 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -390,11 +390,6 @@ config S3C24XX_PWM
 	  Support for exporting the PWM timer blocks via the pwm device
 	  system
 
-config S5P_SETUP_MIPIPHY
-	bool
-	help
-	  Compile in common setup code for MIPI-CSIS and MIPI-DSIM devices
-
 config S3C_SETUP_CAMIF
 	bool
 	help
diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile
index 498c7c23e9f4..9267d29549b4 100644
--- a/arch/arm/plat-samsung/Makefile
+++ b/arch/arm/plat-samsung/Makefile
@@ -38,7 +38,6 @@ obj-$(CONFIG_S5P_DEV_UART)	+= s5p-dev-uart.o
 obj-$(CONFIG_SAMSUNG_DEV_BACKLIGHT)	+= dev-backlight.o
 
 obj-$(CONFIG_S3C_SETUP_CAMIF)	+= setup-camif.o
-obj-$(CONFIG_S5P_SETUP_MIPIPHY)	+= setup-mipiphy.o
 
 # DMA support
 
diff --git a/arch/arm/plat-samsung/setup-mipiphy.c b/arch/arm/plat-samsung/setup-mipiphy.c
deleted file mode 100644
index 66df315990a7..000000000000
--- a/arch/arm/plat-samsung/setup-mipiphy.c
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * Copyright (C) 2011 Samsung Electronics Co., Ltd.
- *
- * S5P - Helper functions for MIPI-CSIS and MIPI-DSIM D-PHY control
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/export.h>
-#include <linux/kernel.h>
-#include <linux/platform_device.h>
-#include <linux/io.h>
-#include <linux/spinlock.h>
-#include <mach/regs-clock.h>
-
-static int __s5p_mipi_phy_control(int id, bool on, u32 reset)
-{
-	static DEFINE_SPINLOCK(lock);
-	void __iomem *addr;
-	unsigned long flags;
-	u32 cfg;
-
-	id = max(0, id);
-	if (id > 1)
-		return -EINVAL;
-
-	addr = S5P_MIPI_DPHY_CONTROL(id);
-
-	spin_lock_irqsave(&lock, flags);
-
-	cfg = __raw_readl(addr);
-	cfg = on ? (cfg | reset) : (cfg & ~reset);
-	__raw_writel(cfg, addr);
-
-	if (on) {
-		cfg |= S5P_MIPI_DPHY_ENABLE;
-	} else if (!(cfg & (S5P_MIPI_DPHY_SRESETN |
-			    S5P_MIPI_DPHY_MRESETN) & ~reset)) {
-		cfg &= ~S5P_MIPI_DPHY_ENABLE;
-	}
-
-	__raw_writel(cfg, addr);
-	spin_unlock_irqrestore(&lock, flags);
-
-	return 0;
-}
-
-int s5p_csis_phy_enable(int id, bool on)
-{
-	return __s5p_mipi_phy_control(id, on, S5P_MIPI_DPHY_SRESETN);
-}
-EXPORT_SYMBOL(s5p_csis_phy_enable);
-
-int s5p_dsim_phy_enable(struct platform_device *pdev, bool on)
-{
-	return __s5p_mipi_phy_control(pdev->id, on, S5P_MIPI_DPHY_MRESETN);
-}
-EXPORT_SYMBOL(s5p_dsim_phy_enable);
-- 
cgit 


From 74988e8b5718b561457fd035dc3ab9b9d8f45a5d Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 16 Oct 2013 21:58:14 +0530
Subject: phy: Add driver for Exynos DP PHY

Add a PHY provider driver for the Samsung Exynos SoC Display Port PHY.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../devicetree/bindings/phy/samsung-phy.txt        |   8 ++
 drivers/phy/Kconfig                                |   7 ++
 drivers/phy/Makefile                               |   1 +
 drivers/phy/phy-exynos-dp-video.c                  | 111 +++++++++++++++++++++
 4 files changed, 127 insertions(+)
 create mode 100644 drivers/phy/phy-exynos-dp-video.c

diff --git a/Documentation/devicetree/bindings/phy/samsung-phy.txt b/Documentation/devicetree/bindings/phy/samsung-phy.txt
index 5ff208c7f1f2..c0fccaa1671e 100644
--- a/Documentation/devicetree/bindings/phy/samsung-phy.txt
+++ b/Documentation/devicetree/bindings/phy/samsung-phy.txt
@@ -12,3 +12,11 @@ the PHY specifier identifies the PHY and its meaning is as follows:
   1 - MIPI DSIM 0,
   2 - MIPI CSIS 1,
   3 - MIPI DSIM 1.
+
+Samsung EXYNOS SoC series Display Port PHY
+-------------------------------------------------
+
+Required properties:
+- compatible : should be "samsung,exynos5250-dp-video-phy";
+- reg : offset and length of the Display Port PHY register set;
+- #phy-cells : from the generic PHY bindings, must be 0;
diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
index 0062d7e60dbe..a344f3d52361 100644
--- a/drivers/phy/Kconfig
+++ b/drivers/phy/Kconfig
@@ -44,4 +44,11 @@ config TWL4030_USB
 	  This transceiver supports high and full speed devices plus,
 	  in host mode, low speed.
 
+config PHY_EXYNOS_DP_VIDEO
+	tristate "EXYNOS SoC series Display Port PHY driver"
+	depends on OF
+	select GENERIC_PHY
+	help
+	  Support for Display Port PHY found on Samsung EXYNOS SoCs.
+
 endmenu
diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
index 6344053661f4..d0caae9cfb83 100644
--- a/drivers/phy/Makefile
+++ b/drivers/phy/Makefile
@@ -3,6 +3,7 @@
 #
 
 obj-$(CONFIG_GENERIC_PHY)		+= phy-core.o
+obj-$(CONFIG_PHY_EXYNOS_DP_VIDEO)	+= phy-exynos-dp-video.o
 obj-$(CONFIG_PHY_EXYNOS_MIPI_VIDEO)	+= phy-exynos-mipi-video.o
 obj-$(CONFIG_OMAP_USB2)			+= phy-omap-usb2.o
 obj-$(CONFIG_TWL4030_USB)		+= phy-twl4030-usb.o
diff --git a/drivers/phy/phy-exynos-dp-video.c b/drivers/phy/phy-exynos-dp-video.c
new file mode 100644
index 000000000000..1dbe6ce7b2ce
--- /dev/null
+++ b/drivers/phy/phy-exynos-dp-video.c
@@ -0,0 +1,111 @@
+/*
+ * Samsung EXYNOS SoC series Display Port PHY driver
+ *
+ * Copyright (C) 2013 Samsung Electronics Co., Ltd.
+ * Author: Jingoo Han <jg1.han@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/phy/phy.h>
+#include <linux/platform_device.h>
+
+/* DPTX_PHY_CONTROL register */
+#define EXYNOS_DPTX_PHY_ENABLE		(1 << 0)
+
+struct exynos_dp_video_phy {
+	void __iomem *regs;
+};
+
+static int __set_phy_state(struct exynos_dp_video_phy *state, unsigned int on)
+{
+	u32 reg;
+
+	reg = readl(state->regs);
+	if (on)
+		reg |= EXYNOS_DPTX_PHY_ENABLE;
+	else
+		reg &= ~EXYNOS_DPTX_PHY_ENABLE;
+	writel(reg, state->regs);
+
+	return 0;
+}
+
+static int exynos_dp_video_phy_power_on(struct phy *phy)
+{
+	struct exynos_dp_video_phy *state = phy_get_drvdata(phy);
+
+	return __set_phy_state(state, 1);
+}
+
+static int exynos_dp_video_phy_power_off(struct phy *phy)
+{
+	struct exynos_dp_video_phy *state = phy_get_drvdata(phy);
+
+	return __set_phy_state(state, 0);
+}
+
+static struct phy_ops exynos_dp_video_phy_ops = {
+	.power_on	= exynos_dp_video_phy_power_on,
+	.power_off	= exynos_dp_video_phy_power_off,
+	.owner		= THIS_MODULE,
+};
+
+static int exynos_dp_video_phy_probe(struct platform_device *pdev)
+{
+	struct exynos_dp_video_phy *state;
+	struct device *dev = &pdev->dev;
+	struct resource *res;
+	struct phy_provider *phy_provider;
+	struct phy *phy;
+
+	state = devm_kzalloc(dev, sizeof(*state), GFP_KERNEL);
+	if (!state)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	state->regs = devm_ioremap_resource(dev, res);
+	if (IS_ERR(state->regs))
+		return PTR_ERR(state->regs);
+
+	phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
+	if (IS_ERR(phy_provider))
+		return PTR_ERR(phy_provider);
+
+	phy = devm_phy_create(dev, &exynos_dp_video_phy_ops, NULL);
+	if (IS_ERR(phy)) {
+		dev_err(dev, "failed to create Display Port PHY\n");
+		return PTR_ERR(phy);
+	}
+	phy_set_drvdata(phy, state);
+
+	return 0;
+}
+
+static const struct of_device_id exynos_dp_video_phy_of_match[] = {
+	{ .compatible = "samsung,exynos5250-dp-video-phy" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, exynos_dp_video_phy_of_match);
+
+static struct platform_driver exynos_dp_video_phy_driver = {
+	.probe	= exynos_dp_video_phy_probe,
+	.driver = {
+		.name	= "exynos-dp-video-phy",
+		.owner	= THIS_MODULE,
+		.of_match_table	= exynos_dp_video_phy_of_match,
+	}
+};
+module_platform_driver(exynos_dp_video_phy_driver);
+
+MODULE_AUTHOR("Jingoo Han <jg1.han@samsung.com>");
+MODULE_DESCRIPTION("Samsung EXYNOS SoC DP PHY driver");
+MODULE_LICENSE("GPL v2");
-- 
cgit 


From f9b1e013f1c6723798b8f7f5b83297e2837aaef7 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 16 Oct 2013 21:58:15 +0530
Subject: video: exynos_dp: remove non-DT support for Exynos Display Port

Exynos Display Port can be used only for Exynos SoCs. In addition,
non-DT for EXYNOS SoCs is not supported from v3.11; thus, there is
no need to support non-DT for Exynos Display Port.

The 'include/video/exynos_dp.h' file has been used for non-DT
support and the content of file include/video/exynos_dp.h is moved
to drivers/video/exynos/exynos_dp_core.h. Thus, the 'exynos_dp.h'
file is removed. Also, 'struct exynos_dp_platdata' is removed,
because it is not used any more.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/video/exynos/Kconfig          |   2 +-
 drivers/video/exynos/exynos_dp_core.c | 116 +++++++-----------------------
 drivers/video/exynos/exynos_dp_core.h | 109 ++++++++++++++++++++++++++++
 drivers/video/exynos/exynos_dp_reg.c  |   2 -
 include/video/exynos_dp.h             | 131 ----------------------------------
 5 files changed, 135 insertions(+), 225 deletions(-)
 delete mode 100644 include/video/exynos_dp.h

diff --git a/drivers/video/exynos/Kconfig b/drivers/video/exynos/Kconfig
index 976594d578a9..1129d0e9e640 100644
--- a/drivers/video/exynos/Kconfig
+++ b/drivers/video/exynos/Kconfig
@@ -30,7 +30,7 @@ config EXYNOS_LCD_S6E8AX0
 
 config EXYNOS_DP
 	bool "EXYNOS DP driver support"
-	depends on ARCH_EXYNOS
+	depends on OF && ARCH_EXYNOS
 	default n
 	help
 	  This enables support for DP device.
diff --git a/drivers/video/exynos/exynos_dp_core.c b/drivers/video/exynos/exynos_dp_core.c
index 12bbede3b091..05fed7dc67da 100644
--- a/drivers/video/exynos/exynos_dp_core.c
+++ b/drivers/video/exynos/exynos_dp_core.c
@@ -20,8 +20,6 @@
 #include <linux/delay.h>
 #include <linux/of.h>
 
-#include <video/exynos_dp.h>
-
 #include "exynos_dp_core.h"
 
 static int exynos_dp_init_dp(struct exynos_dp_device *dp)
@@ -894,26 +892,17 @@ static void exynos_dp_hotplug(struct work_struct *work)
 		dev_err(dp->dev, "unable to config video\n");
 }
 
-#ifdef CONFIG_OF
-static struct exynos_dp_platdata *exynos_dp_dt_parse_pdata(struct device *dev)
+static struct video_info *exynos_dp_dt_parse_pdata(struct device *dev)
 {
 	struct device_node *dp_node = dev->of_node;
-	struct exynos_dp_platdata *pd;
 	struct video_info *dp_video_config;
 
-	pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);
-	if (!pd) {
-		dev_err(dev, "memory allocation for pdata failed\n");
-		return ERR_PTR(-ENOMEM);
-	}
 	dp_video_config = devm_kzalloc(dev,
 				sizeof(*dp_video_config), GFP_KERNEL);
-
 	if (!dp_video_config) {
 		dev_err(dev, "memory allocation for video config failed\n");
 		return ERR_PTR(-ENOMEM);
 	}
-	pd->video_info = dp_video_config;
 
 	dp_video_config->h_sync_polarity =
 		of_property_read_bool(dp_node, "hsync-active-high");
@@ -960,7 +949,7 @@ static struct exynos_dp_platdata *exynos_dp_dt_parse_pdata(struct device *dev)
 		return ERR_PTR(-EINVAL);
 	}
 
-	return pd;
+	return dp_video_config;
 }
 
 static int exynos_dp_dt_parse_phydata(struct exynos_dp_device *dp)
@@ -1003,48 +992,30 @@ err:
 
 static void exynos_dp_phy_init(struct exynos_dp_device *dp)
 {
-	u32 reg;
+	if (dp->phy_addr) {
+		u32 reg;
 
-	reg = __raw_readl(dp->phy_addr);
-	reg |= dp->enable_mask;
-	__raw_writel(reg, dp->phy_addr);
+		reg = __raw_readl(dp->phy_addr);
+		reg |= dp->enable_mask;
+		__raw_writel(reg, dp->phy_addr);
+	}
 }
 
 static void exynos_dp_phy_exit(struct exynos_dp_device *dp)
 {
-	u32 reg;
-
-	reg = __raw_readl(dp->phy_addr);
-	reg &= ~(dp->enable_mask);
-	__raw_writel(reg, dp->phy_addr);
-}
-#else
-static struct exynos_dp_platdata *exynos_dp_dt_parse_pdata(struct device *dev)
-{
-	return NULL;
-}
-
-static int exynos_dp_dt_parse_phydata(struct exynos_dp_device *dp)
-{
-	return -EINVAL;
-}
-
-static void exynos_dp_phy_init(struct exynos_dp_device *dp)
-{
-	return;
-}
+	if (dp->phy_addr) {
+		u32 reg;
 
-static void exynos_dp_phy_exit(struct exynos_dp_device *dp)
-{
-	return;
+		reg = __raw_readl(dp->phy_addr);
+		reg &= ~(dp->enable_mask);
+		__raw_writel(reg, dp->phy_addr);
+	}
 }
-#endif /* CONFIG_OF */
 
 static int exynos_dp_probe(struct platform_device *pdev)
 {
 	struct resource *res;
 	struct exynos_dp_device *dp;
-	struct exynos_dp_platdata *pdata;
 
 	int ret = 0;
 
@@ -1057,21 +1028,13 @@ static int exynos_dp_probe(struct platform_device *pdev)
 
 	dp->dev = &pdev->dev;
 
-	if (pdev->dev.of_node) {
-		pdata = exynos_dp_dt_parse_pdata(&pdev->dev);
-		if (IS_ERR(pdata))
-			return PTR_ERR(pdata);
+	dp->video_info = exynos_dp_dt_parse_pdata(&pdev->dev);
+	if (IS_ERR(dp->video_info))
+		return PTR_ERR(dp->video_info);
 
-		ret = exynos_dp_dt_parse_phydata(dp);
-		if (ret)
-			return ret;
-	} else {
-		pdata = pdev->dev.platform_data;
-		if (!pdata) {
-			dev_err(&pdev->dev, "no platform data\n");
-			return -EINVAL;
-		}
-	}
+	ret = exynos_dp_dt_parse_phydata(dp);
+	if (ret)
+		return ret;
 
 	dp->clock = devm_clk_get(&pdev->dev, "dp");
 	if (IS_ERR(dp->clock)) {
@@ -1095,15 +1058,7 @@ static int exynos_dp_probe(struct platform_device *pdev)
 
 	INIT_WORK(&dp->hotplug_work, exynos_dp_hotplug);
 
-	dp->video_info = pdata->video_info;
-
-	if (pdev->dev.of_node) {
-		if (dp->phy_addr)
-			exynos_dp_phy_init(dp);
-	} else {
-		if (pdata->phy_init)
-			pdata->phy_init();
-	}
+	exynos_dp_phy_init(dp);
 
 	exynos_dp_init_dp(dp);
 
@@ -1121,18 +1076,11 @@ static int exynos_dp_probe(struct platform_device *pdev)
 
 static int exynos_dp_remove(struct platform_device *pdev)
 {
-	struct exynos_dp_platdata *pdata = pdev->dev.platform_data;
 	struct exynos_dp_device *dp = platform_get_drvdata(pdev);
 
 	flush_work(&dp->hotplug_work);
 
-	if (pdev->dev.of_node) {
-		if (dp->phy_addr)
-			exynos_dp_phy_exit(dp);
-	} else {
-		if (pdata->phy_exit)
-			pdata->phy_exit();
-	}
+	exynos_dp_phy_exit(dp);
 
 	clk_disable_unprepare(dp->clock);
 
@@ -1143,20 +1091,13 @@ static int exynos_dp_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM_SLEEP
 static int exynos_dp_suspend(struct device *dev)
 {
-	struct exynos_dp_platdata *pdata = dev->platform_data;
 	struct exynos_dp_device *dp = dev_get_drvdata(dev);
 
 	disable_irq(dp->irq);
 
 	flush_work(&dp->hotplug_work);
 
-	if (dev->of_node) {
-		if (dp->phy_addr)
-			exynos_dp_phy_exit(dp);
-	} else {
-		if (pdata->phy_exit)
-			pdata->phy_exit();
-	}
+	exynos_dp_phy_exit(dp);
 
 	clk_disable_unprepare(dp->clock);
 
@@ -1165,16 +1106,9 @@ static int exynos_dp_suspend(struct device *dev)
 
 static int exynos_dp_resume(struct device *dev)
 {
-	struct exynos_dp_platdata *pdata = dev->platform_data;
 	struct exynos_dp_device *dp = dev_get_drvdata(dev);
 
-	if (dev->of_node) {
-		if (dp->phy_addr)
-			exynos_dp_phy_init(dp);
-	} else {
-		if (pdata->phy_init)
-			pdata->phy_init();
-	}
+	exynos_dp_phy_init(dp);
 
 	clk_prepare_enable(dp->clock);
 
@@ -1203,7 +1137,7 @@ static struct platform_driver exynos_dp_driver = {
 		.name	= "exynos-dp",
 		.owner	= THIS_MODULE,
 		.pm	= &exynos_dp_pm_ops,
-		.of_match_table = of_match_ptr(exynos_dp_match),
+		.of_match_table = exynos_dp_match,
 	},
 };
 
diff --git a/drivers/video/exynos/exynos_dp_core.h b/drivers/video/exynos/exynos_dp_core.h
index 6c567bbf2fb8..56cfec890b46 100644
--- a/drivers/video/exynos/exynos_dp_core.h
+++ b/drivers/video/exynos/exynos_dp_core.h
@@ -13,6 +13,99 @@
 #ifndef _EXYNOS_DP_CORE_H
 #define _EXYNOS_DP_CORE_H
 
+#define DP_TIMEOUT_LOOP_COUNT 100
+#define MAX_CR_LOOP 5
+#define MAX_EQ_LOOP 5
+
+enum link_rate_type {
+	LINK_RATE_1_62GBPS = 0x06,
+	LINK_RATE_2_70GBPS = 0x0a
+};
+
+enum link_lane_count_type {
+	LANE_COUNT1 = 1,
+	LANE_COUNT2 = 2,
+	LANE_COUNT4 = 4
+};
+
+enum link_training_state {
+	START,
+	CLOCK_RECOVERY,
+	EQUALIZER_TRAINING,
+	FINISHED,
+	FAILED
+};
+
+enum voltage_swing_level {
+	VOLTAGE_LEVEL_0,
+	VOLTAGE_LEVEL_1,
+	VOLTAGE_LEVEL_2,
+	VOLTAGE_LEVEL_3,
+};
+
+enum pre_emphasis_level {
+	PRE_EMPHASIS_LEVEL_0,
+	PRE_EMPHASIS_LEVEL_1,
+	PRE_EMPHASIS_LEVEL_2,
+	PRE_EMPHASIS_LEVEL_3,
+};
+
+enum pattern_set {
+	PRBS7,
+	D10_2,
+	TRAINING_PTN1,
+	TRAINING_PTN2,
+	DP_NONE
+};
+
+enum color_space {
+	COLOR_RGB,
+	COLOR_YCBCR422,
+	COLOR_YCBCR444
+};
+
+enum color_depth {
+	COLOR_6,
+	COLOR_8,
+	COLOR_10,
+	COLOR_12
+};
+
+enum color_coefficient {
+	COLOR_YCBCR601,
+	COLOR_YCBCR709
+};
+
+enum dynamic_range {
+	VESA,
+	CEA
+};
+
+enum pll_status {
+	PLL_UNLOCKED,
+	PLL_LOCKED
+};
+
+enum clock_recovery_m_value_type {
+	CALCULATED_M,
+	REGISTER_M
+};
+
+enum video_timing_recognition_type {
+	VIDEO_TIMING_FROM_CAPTURE,
+	VIDEO_TIMING_FROM_REGISTER
+};
+
+enum analog_power_block {
+	AUX_BLOCK,
+	CH0_BLOCK,
+	CH1_BLOCK,
+	CH2_BLOCK,
+	CH3_BLOCK,
+	ANALOG_TOTAL,
+	POWER_ALL
+};
+
 enum dp_irq_type {
 	DP_IRQ_TYPE_HP_CABLE_IN,
 	DP_IRQ_TYPE_HP_CABLE_OUT,
@@ -20,6 +113,22 @@ enum dp_irq_type {
 	DP_IRQ_TYPE_UNKNOWN,
 };
 
+struct video_info {
+	char *name;
+
+	bool h_sync_polarity;
+	bool v_sync_polarity;
+	bool interlaced;
+
+	enum color_space color_space;
+	enum dynamic_range dynamic_range;
+	enum color_coefficient ycbcr_coeff;
+	enum color_depth color_depth;
+
+	enum link_rate_type link_rate;
+	enum link_lane_count_type lane_count;
+};
+
 struct link_train {
 	int eq_loop;
 	int cr_loop[4];
diff --git a/drivers/video/exynos/exynos_dp_reg.c b/drivers/video/exynos/exynos_dp_reg.c
index 29d9d035c73a..b70da5052ff0 100644
--- a/drivers/video/exynos/exynos_dp_reg.c
+++ b/drivers/video/exynos/exynos_dp_reg.c
@@ -14,8 +14,6 @@
 #include <linux/io.h>
 #include <linux/delay.h>
 
-#include <video/exynos_dp.h>
-
 #include "exynos_dp_core.h"
 #include "exynos_dp_reg.h"
 
diff --git a/include/video/exynos_dp.h b/include/video/exynos_dp.h
deleted file mode 100644
index bd8cabd344db..000000000000
--- a/include/video/exynos_dp.h
+++ /dev/null
@@ -1,131 +0,0 @@
-/*
- * Samsung SoC DP device support
- *
- * Copyright (C) 2012 Samsung Electronics Co., Ltd.
- * Author: Jingoo Han <jg1.han@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef _EXYNOS_DP_H
-#define _EXYNOS_DP_H
-
-#define DP_TIMEOUT_LOOP_COUNT 100
-#define MAX_CR_LOOP 5
-#define MAX_EQ_LOOP 5
-
-enum link_rate_type {
-	LINK_RATE_1_62GBPS = 0x06,
-	LINK_RATE_2_70GBPS = 0x0a
-};
-
-enum link_lane_count_type {
-	LANE_COUNT1 = 1,
-	LANE_COUNT2 = 2,
-	LANE_COUNT4 = 4
-};
-
-enum link_training_state {
-	START,
-	CLOCK_RECOVERY,
-	EQUALIZER_TRAINING,
-	FINISHED,
-	FAILED
-};
-
-enum voltage_swing_level {
-	VOLTAGE_LEVEL_0,
-	VOLTAGE_LEVEL_1,
-	VOLTAGE_LEVEL_2,
-	VOLTAGE_LEVEL_3,
-};
-
-enum pre_emphasis_level {
-	PRE_EMPHASIS_LEVEL_0,
-	PRE_EMPHASIS_LEVEL_1,
-	PRE_EMPHASIS_LEVEL_2,
-	PRE_EMPHASIS_LEVEL_3,
-};
-
-enum pattern_set {
-	PRBS7,
-	D10_2,
-	TRAINING_PTN1,
-	TRAINING_PTN2,
-	DP_NONE
-};
-
-enum color_space {
-	COLOR_RGB,
-	COLOR_YCBCR422,
-	COLOR_YCBCR444
-};
-
-enum color_depth {
-	COLOR_6,
-	COLOR_8,
-	COLOR_10,
-	COLOR_12
-};
-
-enum color_coefficient {
-	COLOR_YCBCR601,
-	COLOR_YCBCR709
-};
-
-enum dynamic_range {
-	VESA,
-	CEA
-};
-
-enum pll_status {
-	PLL_UNLOCKED,
-	PLL_LOCKED
-};
-
-enum clock_recovery_m_value_type {
-	CALCULATED_M,
-	REGISTER_M
-};
-
-enum video_timing_recognition_type {
-	VIDEO_TIMING_FROM_CAPTURE,
-	VIDEO_TIMING_FROM_REGISTER
-};
-
-enum analog_power_block {
-	AUX_BLOCK,
-	CH0_BLOCK,
-	CH1_BLOCK,
-	CH2_BLOCK,
-	CH3_BLOCK,
-	ANALOG_TOTAL,
-	POWER_ALL
-};
-
-struct video_info {
-	char *name;
-
-	bool h_sync_polarity;
-	bool v_sync_polarity;
-	bool interlaced;
-
-	enum color_space color_space;
-	enum dynamic_range dynamic_range;
-	enum color_coefficient ycbcr_coeff;
-	enum color_depth color_depth;
-
-	enum link_rate_type link_rate;
-	enum link_lane_count_type lane_count;
-};
-
-struct exynos_dp_platdata {
-	struct video_info *video_info;
-
-	void (*phy_init)(void);
-	void (*phy_exit)(void);
-};
-
-#endif /* _EXYNOS_DP_H */
-- 
cgit 


From 8114fabc94cc94e4eb50050a99f7ee5573fa37d9 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 16 Oct 2013 21:58:16 +0530
Subject: video: exynos_dp: Use the generic PHY driver

Use the generic PHY API to control the DP PHY.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/devicetree/bindings/video/exynos_dp.txt | 17 +++++++++--------
 drivers/video/exynos/exynos_dp_core.c                 | 16 ++++++++++++----
 drivers/video/exynos/exynos_dp_core.h                 |  1 +
 3 files changed, 22 insertions(+), 12 deletions(-)

diff --git a/Documentation/devicetree/bindings/video/exynos_dp.txt b/Documentation/devicetree/bindings/video/exynos_dp.txt
index 84f10c16cb38..3289d76a21d0 100644
--- a/Documentation/devicetree/bindings/video/exynos_dp.txt
+++ b/Documentation/devicetree/bindings/video/exynos_dp.txt
@@ -6,10 +6,10 @@ We use two nodes:
 	-dptx-phy node(defined inside dp-controller node)
 
 For the DP-PHY initialization, we use the dptx-phy node.
-Required properties for dptx-phy:
-	-reg:
+Required properties for dptx-phy: deprecated, use phys and phy-names
+	-reg: deprecated
 		Base address of DP PHY register.
-	-samsung,enable-mask:
+	-samsung,enable-mask: deprecated
 		The bit-mask used to enable/disable DP PHY.
 
 For the Panel initialization, we read data from dp-controller node.
@@ -27,6 +27,10 @@ Required properties for dp-controller:
 		from common clock binding: Shall be "dp".
 	-interrupt-parent:
 		phandle to Interrupt combiner node.
+	-phys:
+		from general PHY binding: the phandle for the PHY device.
+	-phy-names:
+		from general PHY binding: Should be "dp".
 	-samsung,color-space:
 		input video data format.
 			COLOR_RGB = 0, COLOR_YCBCR422 = 1, COLOR_YCBCR444 = 2
@@ -68,11 +72,8 @@ SOC specific portion:
 		clocks = <&clock 342>;
 		clock-names = "dp";
 
-		dptx-phy {
-			reg = <0x10040720>;
-			samsung,enable-mask = <1>;
-		};
-
+		phys = <&dp_phy>;
+		phy-names = "dp";
 	};
 
 Board Specific portion:
diff --git a/drivers/video/exynos/exynos_dp_core.c b/drivers/video/exynos/exynos_dp_core.c
index 05fed7dc67da..5e1a71580051 100644
--- a/drivers/video/exynos/exynos_dp_core.c
+++ b/drivers/video/exynos/exynos_dp_core.c
@@ -19,6 +19,7 @@
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 #include <linux/of.h>
+#include <linux/phy/phy.h>
 
 #include "exynos_dp_core.h"
 
@@ -960,8 +961,11 @@ static int exynos_dp_dt_parse_phydata(struct exynos_dp_device *dp)
 
 	dp_phy_node = of_find_node_by_name(dp_phy_node, "dptx-phy");
 	if (!dp_phy_node) {
-		dev_err(dp->dev, "could not find dptx-phy node\n");
-		return -ENODEV;
+		dp->phy = devm_phy_get(dp->dev, "dp");
+		if (IS_ERR(dp->phy))
+			return PTR_ERR(dp->phy);
+		else
+			return 0;
 	}
 
 	if (of_property_read_u32(dp_phy_node, "reg", &phy_base)) {
@@ -992,7 +996,9 @@ err:
 
 static void exynos_dp_phy_init(struct exynos_dp_device *dp)
 {
-	if (dp->phy_addr) {
+	if (dp->phy) {
+		phy_power_on(dp->phy);
+	} else if (dp->phy_addr) {
 		u32 reg;
 
 		reg = __raw_readl(dp->phy_addr);
@@ -1003,7 +1009,9 @@ static void exynos_dp_phy_init(struct exynos_dp_device *dp)
 
 static void exynos_dp_phy_exit(struct exynos_dp_device *dp)
 {
-	if (dp->phy_addr) {
+	if (dp->phy) {
+		phy_power_off(dp->phy);
+	} else if (dp->phy_addr) {
 		u32 reg;
 
 		reg = __raw_readl(dp->phy_addr);
diff --git a/drivers/video/exynos/exynos_dp_core.h b/drivers/video/exynos/exynos_dp_core.h
index 56cfec890b46..607e36d0c147 100644
--- a/drivers/video/exynos/exynos_dp_core.h
+++ b/drivers/video/exynos/exynos_dp_core.h
@@ -151,6 +151,7 @@ struct exynos_dp_device {
 	struct video_info	*video_info;
 	struct link_train	link_train;
 	struct work_struct	hotplug_work;
+	struct phy		*phy;
 };
 
 /* exynos_dp_reg.c */
-- 
cgit 


From fdf91dae6f024c6dfee425fe754df6b1957f6c53 Mon Sep 17 00:00:00 2001
From: Felipe Pena <felipensp@gmail.com>
Date: Tue, 15 Oct 2013 20:22:32 -0300
Subject: drivers: hv: Fix wrong check for synic_event_page

The check for calling free_page() on hv_context.synic_event_page[cpu] is the
same for hv_context.synic_message_page[cpu], like a copy-paste error.

Signed-off-by: Felipe Pena <felipensp@gmail.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hv/hv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hv/hv.c b/drivers/hv/hv.c
index 88f4096fa078..f0c5e07c25ec 100644
--- a/drivers/hv/hv.c
+++ b/drivers/hv/hv.c
@@ -304,7 +304,7 @@ err:
 void hv_synic_free_cpu(int cpu)
 {
 	kfree(hv_context.event_dpc[cpu]);
-	if (hv_context.synic_message_page[cpu])
+	if (hv_context.synic_event_page[cpu])
 		free_page((unsigned long)hv_context.synic_event_page[cpu]);
 	if (hv_context.synic_message_page[cpu])
 		free_page((unsigned long)hv_context.synic_message_page[cpu]);
-- 
cgit 


From 5d7e690d775e59e51caaf03e90811af7729ef278 Mon Sep 17 00:00:00 2001
From: Jungseok Lee <jays.lee@samsung.com>
Date: Tue, 15 Oct 2013 08:31:13 +0900
Subject: cpufreq: exynos: Show a list of available frequencies

This patch adds freq_attr to show a list of exynos5440 scaling
available frequencies through sysfs. Common exynos driver already
supports this attribute.

Signed-off-by: Jungseok Lee <jays.lee@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/exynos5440-cpufreq.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c
index 06b73e85eec0..fecc3dadb7e2 100644
--- a/drivers/cpufreq/exynos5440-cpufreq.c
+++ b/drivers/cpufreq/exynos5440-cpufreq.c
@@ -330,6 +330,7 @@ static struct cpufreq_driver exynos_driver = {
 	.init		= exynos_cpufreq_cpu_init,
 	.exit		= cpufreq_generic_exit,
 	.name		= CPUFREQ_NAME,
+	.attr		= cpufreq_generic_attr,
 };
 
 static const struct of_device_id exynos_cpufreq_match[] = {
-- 
cgit 


From 076dec90fc32c830184b0f0fa1842a6de1199bc6 Mon Sep 17 00:00:00 2001
From: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Date: Wed, 16 Oct 2013 14:52:39 +0100
Subject: cpufreq: arm-big-little: use clk_get instead of clk_get_sys

Currently clk_get_sys is used with cpu-cluster.<n> as the device id
which is incorrect. It should be connection/consumer ID instead.

It is possible to specify input clock in the cpu device node along
with the optional clock-name. clk_get_sys can't handle that.

This patch replaces clk_get_sys with clk_get to extend support for
clocks specified in the device tree cpu node.

Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/arm_big_little.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index f7717efdd28f..31b41a4c0dfe 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -119,7 +119,7 @@ static int get_cluster_clk_and_freq_table(struct device *cpu_dev)
 	}
 
 	name[12] = cluster + '0';
-	clk[cluster] = clk_get_sys(name, NULL);
+	clk[cluster] = clk_get(cpu_dev, name);
 	if (!IS_ERR(clk[cluster])) {
 		dev_dbg(cpu_dev, "%s: clk: %p & freq table: %p, cluster: %d\n",
 				__func__, clk[cluster], freq_table[cluster],
-- 
cgit 


From 5ad945ea58f6cab7490dc149974ccb6514cc569a Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Sun, 22 Sep 2013 22:29:57 +0200
Subject: ARM: at91: cpuidle: Convert to platform driver

Using the platform driver model is a good way to separate the cpuidle specific
code from the low level pm code. It allows to remove the dependency between
these two components.

The platform_device is located in the pm code and a 'set' function has been
added to set the standby function from the AT91_SOC_START initialization
function. Each SoC with a cpuidle driver will set the standby function in the
platform_data field at init time. Then pm code will register the cpuidle
platform device.

The cpuidle driver will register the platform_driver and use the device's
platform_data as a standby callback in the idle path.

The at91_pm_enter function contains a { if then else } based on cpu_is_xx
similar to what was in cpuidle. This is considered dangerous when adding a new
SoC. Like the cpuidle driver, a standby ops is defined and assigned when the
SoC init function specifies what is its standby function and reused in the
at91_pm_enter's 'case' block.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
 arch/arm/mach-at91/at91rm9200.c  |  3 +++
 arch/arm/mach-at91/at91sam9260.c |  3 +++
 arch/arm/mach-at91/at91sam9261.c |  3 +++
 arch/arm/mach-at91/at91sam9263.c |  3 +++
 arch/arm/mach-at91/at91sam9g45.c |  3 +++
 arch/arm/mach-at91/at91sam9rl.c  |  3 +++
 arch/arm/mach-at91/cpuidle.c     | 29 +++++++++++++++--------------
 arch/arm/mach-at91/pm.c          | 27 +++++++++++++++++++--------
 arch/arm/mach-at91/pm.h          |  4 ++++
 9 files changed, 56 insertions(+), 22 deletions(-)

diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c
index 4aad93d54d6f..0d234f2a04b3 100644
--- a/arch/arm/mach-at91/at91rm9200.c
+++ b/arch/arm/mach-at91/at91rm9200.c
@@ -27,6 +27,7 @@
 #include "generic.h"
 #include "clock.h"
 #include "sam9_smc.h"
+#include "pm.h"
 
 /* --------------------------------------------------------------------
  *  Clocks
@@ -337,6 +338,8 @@ static void __init at91rm9200_initialize(void)
 	/* Initialize GPIO subsystem */
 	at91_gpio_init(at91rm9200_gpio,
 		cpu_is_at91rm9200_bga() ? AT91RM9200_BGA : AT91RM9200_PQFP);
+
+	at91_pm_set_standby(at91rm9200_standby);
 }
 
 
diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c
index 5de6074b4f4f..ffe9ce70b53a 100644
--- a/arch/arm/mach-at91/at91sam9260.c
+++ b/arch/arm/mach-at91/at91sam9260.c
@@ -28,6 +28,7 @@
 #include "generic.h"
 #include "clock.h"
 #include "sam9_smc.h"
+#include "pm.h"
 
 /* --------------------------------------------------------------------
  *  Clocks
@@ -351,6 +352,8 @@ static void __init at91sam9260_initialize(void)
 
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9260_gpio, 3);
+
+	at91_pm_set_standby(at91sam9_standby);
 }
 
 /* --------------------------------------------------------------------
diff --git a/arch/arm/mach-at91/at91sam9261.c b/arch/arm/mach-at91/at91sam9261.c
index 0e0793241ab7..1edbb6fd4636 100644
--- a/arch/arm/mach-at91/at91sam9261.c
+++ b/arch/arm/mach-at91/at91sam9261.c
@@ -27,6 +27,7 @@
 #include "generic.h"
 #include "clock.h"
 #include "sam9_smc.h"
+#include "pm.h"
 
 /* --------------------------------------------------------------------
  *  Clocks
@@ -293,6 +294,8 @@ static void __init at91sam9261_initialize(void)
 
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9261_gpio, 3);
+
+	at91_pm_set_sandby(at91sam9_standby);
 }
 
 /* --------------------------------------------------------------------
diff --git a/arch/arm/mach-at91/at91sam9263.c b/arch/arm/mach-at91/at91sam9263.c
index 6ce7d1850893..8c81c890618c 100644
--- a/arch/arm/mach-at91/at91sam9263.c
+++ b/arch/arm/mach-at91/at91sam9263.c
@@ -26,6 +26,7 @@
 #include "generic.h"
 #include "clock.h"
 #include "sam9_smc.h"
+#include "pm.h"
 
 /* --------------------------------------------------------------------
  *  Clocks
@@ -330,6 +331,8 @@ static void __init at91sam9263_initialize(void)
 
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9263_gpio, 5);
+
+	at91_pm_set_standby(at91sam9263_standby);
 }
 
 /* --------------------------------------------------------------------
diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c
index 474ee04d24b9..8460f521c20b 100644
--- a/arch/arm/mach-at91/at91sam9g45.c
+++ b/arch/arm/mach-at91/at91sam9g45.c
@@ -26,6 +26,7 @@
 #include "generic.h"
 #include "clock.h"
 #include "sam9_smc.h"
+#include "pm.h"
 
 /* --------------------------------------------------------------------
  *  Clocks
@@ -379,6 +380,8 @@ static void __init at91sam9g45_initialize(void)
 
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9g45_gpio, 5);
+
+	at91_pm_set_standby(at91sam9g45_standby);
 }
 
 /* --------------------------------------------------------------------
diff --git a/arch/arm/mach-at91/at91sam9rl.c b/arch/arm/mach-at91/at91sam9rl.c
index d4ec0d9a9872..c7986e4f4e0e 100644
--- a/arch/arm/mach-at91/at91sam9rl.c
+++ b/arch/arm/mach-at91/at91sam9rl.c
@@ -27,6 +27,7 @@
 #include "generic.h"
 #include "clock.h"
 #include "sam9_smc.h"
+#include "pm.h"
 
 /* --------------------------------------------------------------------
  *  Clocks
@@ -296,6 +297,8 @@ static void __init at91sam9rl_initialize(void)
 
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9rl_gpio, 4);
+
+	at91_pm_set_standby(at91sam9_standby);
 }
 
 /* --------------------------------------------------------------------
diff --git a/arch/arm/mach-at91/cpuidle.c b/arch/arm/mach-at91/cpuidle.c
index 4ec6a6d9b9be..a0774370c6bc 100644
--- a/arch/arm/mach-at91/cpuidle.c
+++ b/arch/arm/mach-at91/cpuidle.c
@@ -21,26 +21,17 @@
 #include <linux/export.h>
 #include <asm/proc-fns.h>
 #include <asm/cpuidle.h>
-#include <mach/cpu.h>
-
-#include "pm.h"
 
 #define AT91_MAX_STATES	2
 
+static void (*at91_standby)(void);
+
 /* Actual code that puts the SoC in different idle states */
 static int at91_enter_idle(struct cpuidle_device *dev,
 			struct cpuidle_driver *drv,
 			       int index)
 {
-	if (cpu_is_at91rm9200())
-		at91rm9200_standby();
-	else if (cpu_is_at91sam9g45())
-		at91sam9g45_standby();
-	else if (cpu_is_at91sam9263())
-		at91sam9263_standby();
-	else
-		at91sam9_standby();
-
+	at91_standby();
 	return index;
 }
 
@@ -60,9 +51,19 @@ static struct cpuidle_driver at91_idle_driver = {
 };
 
 /* Initialize CPU idle by registering the idle states */
-static int __init at91_init_cpuidle(void)
+static int at91_cpuidle_probe(struct platform_device *dev)
 {
+	at91_standby = (void *)(dev->dev.platform_data);
+	
 	return cpuidle_register(&at91_idle_driver, NULL);
 }
 
-device_initcall(at91_init_cpuidle);
+static struct platform_driver at91_cpuidle_driver = {
+	.driver = {
+		.name = "cpuidle-at91",
+		.owner = THIS_MODULE,
+	},
+	.probe = at91_cpuidle_probe,
+};
+
+module_platform_driver(at91_cpuidle_driver);
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 15afb5d9271f..9986542e8060 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -39,6 +39,8 @@
 #include "at91_rstc.h"
 #include "at91_shdwc.h"
 
+static void (*at91_pm_standby)(void);
+
 static void __init show_reset_status(void)
 {
 	static char reset[] __initdata = "reset";
@@ -266,14 +268,8 @@ static int at91_pm_enter(suspend_state_t state)
 			 * For ARM 926 based chips, this requirement is weaker
 			 * as at91sam9 can access a RAM in self-refresh mode.
 			 */
-			if (cpu_is_at91rm9200())
-				at91rm9200_standby();
-			else if (cpu_is_at91sam9g45())
-				at91sam9g45_standby();
-			else if (cpu_is_at91sam9263())
-				at91sam9263_standby();
-			else
-				at91sam9_standby();
+			if (at91_pm_standby)
+				at91_pm_standby();
 			break;
 
 		case PM_SUSPEND_ON:
@@ -314,6 +310,18 @@ static const struct platform_suspend_ops at91_pm_ops = {
 	.end	= at91_pm_end,
 };
 
+static struct platform_device at91_cpuidle_device = {
+	.name = "cpuidle-at91",
+};
+
+void at91_pm_set_standby(void (*at91_standby)(void))
+{
+	if (at91_standby) {
+		at91_cpuidle_device.dev.platform_data = at91_standby;
+		at91_pm_standby = at91_standby;
+	}
+}
+
 static int __init at91_pm_init(void)
 {
 #ifdef CONFIG_AT91_SLOW_CLOCK
@@ -325,6 +333,9 @@ static int __init at91_pm_init(void)
 	/* AT91RM9200 SDRAM low-power mode cannot be used with self-refresh. */
 	if (cpu_is_at91rm9200())
 		at91_ramc_write(0, AT91RM9200_SDRAMC_LPR, 0);
+	
+	if (at91_cpuidle_device.dev.platform_data)
+		platform_device_register(&at91_cpuidle_device);
 
 	suspend_set_ops(&at91_pm_ops);
 
diff --git a/arch/arm/mach-at91/pm.h b/arch/arm/mach-at91/pm.h
index 2f5908f0b8c5..76dd1a749ebd 100644
--- a/arch/arm/mach-at91/pm.h
+++ b/arch/arm/mach-at91/pm.h
@@ -11,9 +11,13 @@
 #ifndef __ARCH_ARM_MACH_AT91_PM
 #define __ARCH_ARM_MACH_AT91_PM
 
+#include <asm/proc-fns.h>
+
 #include <mach/at91_ramc.h>
 #include <mach/at91rm9200_sdramc.h>
 
+extern void at91_pm_set_standby(void (*at91_standby)(void));
+
 /*
  * The AT91RM9200 goes into self-refresh mode with this command, and will
  * terminate self-refresh automatically on the next SDRAM access.
-- 
cgit 


From 1ce3c48e6c76920fa46bfdde84a69e155f880c32 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Thu, 26 Sep 2013 17:34:24 +0200
Subject: ARM: at91: cpuidle: Move driver to drivers/cpuidle

As the cpuidle driver code has no more the dependency with the pm code, the
'standby' callback being passed as a parameter to the device's platform data,
we can move the cpuidle driver in the drivers/cpuidle directory.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>

Conflicts:

	drivers/cpuidle/Kconfig.arm
	drivers/cpuidle/Makefile
---
 arch/arm/mach-at91/Makefile    |  1 -
 arch/arm/mach-at91/cpuidle.c   | 69 ------------------------------------------
 drivers/cpuidle/Kconfig.arm    |  7 +++++
 drivers/cpuidle/Makefile       |  1 +
 drivers/cpuidle/cpuidle-at91.c | 69 ++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 77 insertions(+), 70 deletions(-)
 delete mode 100644 arch/arm/mach-at91/cpuidle.c
 create mode 100644 drivers/cpuidle/cpuidle-at91.c

diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index 3b0a9538093c..c1b737097c95 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -98,7 +98,6 @@ obj-y				+= leds.o
 # Power Management
 obj-$(CONFIG_PM)		+= pm.o
 obj-$(CONFIG_AT91_SLOW_CLOCK)	+= pm_slowclock.o
-obj-$(CONFIG_CPU_IDLE)	+= cpuidle.o
 
 ifeq ($(CONFIG_PM_DEBUG),y)
 CFLAGS_pm.o += -DDEBUG
diff --git a/arch/arm/mach-at91/cpuidle.c b/arch/arm/mach-at91/cpuidle.c
deleted file mode 100644
index a0774370c6bc..000000000000
--- a/arch/arm/mach-at91/cpuidle.c
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * based on arch/arm/mach-kirkwood/cpuidle.c
- *
- * CPU idle support for AT91 SoC
- *
- * This file is licensed under the terms of the GNU General Public
- * License version 2.  This program is licensed "as is" without any
- * warranty of any kind, whether express or implied.
- *
- * The cpu idle uses wait-for-interrupt and RAM self refresh in order
- * to implement two idle states -
- * #1 wait-for-interrupt
- * #2 wait-for-interrupt and RAM self refresh
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/cpuidle.h>
-#include <linux/io.h>
-#include <linux/export.h>
-#include <asm/proc-fns.h>
-#include <asm/cpuidle.h>
-
-#define AT91_MAX_STATES	2
-
-static void (*at91_standby)(void);
-
-/* Actual code that puts the SoC in different idle states */
-static int at91_enter_idle(struct cpuidle_device *dev,
-			struct cpuidle_driver *drv,
-			       int index)
-{
-	at91_standby();
-	return index;
-}
-
-static struct cpuidle_driver at91_idle_driver = {
-	.name			= "at91_idle",
-	.owner			= THIS_MODULE,
-	.states[0]		= ARM_CPUIDLE_WFI_STATE,
-	.states[1]		= {
-		.enter			= at91_enter_idle,
-		.exit_latency		= 10,
-		.target_residency	= 10000,
-		.flags			= CPUIDLE_FLAG_TIME_VALID,
-		.name			= "RAM_SR",
-		.desc			= "WFI and DDR Self Refresh",
-	},
-	.state_count = AT91_MAX_STATES,
-};
-
-/* Initialize CPU idle by registering the idle states */
-static int at91_cpuidle_probe(struct platform_device *dev)
-{
-	at91_standby = (void *)(dev->dev.platform_data);
-	
-	return cpuidle_register(&at91_idle_driver, NULL);
-}
-
-static struct platform_driver at91_cpuidle_driver = {
-	.driver = {
-		.name = "cpuidle-at91",
-		.owner = THIS_MODULE,
-	},
-	.probe = at91_cpuidle_probe,
-};
-
-module_platform_driver(at91_cpuidle_driver);
diff --git a/drivers/cpuidle/Kconfig.arm b/drivers/cpuidle/Kconfig.arm
index 6a7e6f2d8adc..f23bd75426cd 100644
--- a/drivers/cpuidle/Kconfig.arm
+++ b/drivers/cpuidle/Kconfig.arm
@@ -37,3 +37,10 @@ config ARM_U8500_CPUIDLE
 	depends on ARCH_U8500
 	help
 	  Select this to enable cpuidle for ST-E u8500 processors
+
+config ARM_AT91_CPUIDLE
+	bool "Cpu Idle Driver for the AT91 processors"
+	default y
+	depends on ARCH_AT91
+	help
+	  Select this to enable cpuidle for AT91 processors
diff --git a/drivers/cpuidle/Makefile b/drivers/cpuidle/Makefile
index d08bd4055a49..527be28e5c1e 100644
--- a/drivers/cpuidle/Makefile
+++ b/drivers/cpuidle/Makefile
@@ -12,3 +12,4 @@ obj-$(CONFIG_ARM_HIGHBANK_CPUIDLE)	+= cpuidle-calxeda.o
 obj-$(CONFIG_ARM_KIRKWOOD_CPUIDLE)	+= cpuidle-kirkwood.o
 obj-$(CONFIG_ARM_ZYNQ_CPUIDLE)		+= cpuidle-zynq.o
 obj-$(CONFIG_ARM_U8500_CPUIDLE)         += cpuidle-ux500.o
+obj-$(CONFIG_ARM_AT91_CPUIDLE)          += cpuidle-at91.o
diff --git a/drivers/cpuidle/cpuidle-at91.c b/drivers/cpuidle/cpuidle-at91.c
new file mode 100644
index 000000000000..a0774370c6bc
--- /dev/null
+++ b/drivers/cpuidle/cpuidle-at91.c
@@ -0,0 +1,69 @@
+/*
+ * based on arch/arm/mach-kirkwood/cpuidle.c
+ *
+ * CPU idle support for AT91 SoC
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ *
+ * The cpu idle uses wait-for-interrupt and RAM self refresh in order
+ * to implement two idle states -
+ * #1 wait-for-interrupt
+ * #2 wait-for-interrupt and RAM self refresh
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/cpuidle.h>
+#include <linux/io.h>
+#include <linux/export.h>
+#include <asm/proc-fns.h>
+#include <asm/cpuidle.h>
+
+#define AT91_MAX_STATES	2
+
+static void (*at91_standby)(void);
+
+/* Actual code that puts the SoC in different idle states */
+static int at91_enter_idle(struct cpuidle_device *dev,
+			struct cpuidle_driver *drv,
+			       int index)
+{
+	at91_standby();
+	return index;
+}
+
+static struct cpuidle_driver at91_idle_driver = {
+	.name			= "at91_idle",
+	.owner			= THIS_MODULE,
+	.states[0]		= ARM_CPUIDLE_WFI_STATE,
+	.states[1]		= {
+		.enter			= at91_enter_idle,
+		.exit_latency		= 10,
+		.target_residency	= 10000,
+		.flags			= CPUIDLE_FLAG_TIME_VALID,
+		.name			= "RAM_SR",
+		.desc			= "WFI and DDR Self Refresh",
+	},
+	.state_count = AT91_MAX_STATES,
+};
+
+/* Initialize CPU idle by registering the idle states */
+static int at91_cpuidle_probe(struct platform_device *dev)
+{
+	at91_standby = (void *)(dev->dev.platform_data);
+	
+	return cpuidle_register(&at91_idle_driver, NULL);
+}
+
+static struct platform_driver at91_cpuidle_driver = {
+	.driver = {
+		.name = "cpuidle-at91",
+		.owner = THIS_MODULE,
+	},
+	.probe = at91_cpuidle_probe,
+};
+
+module_platform_driver(at91_cpuidle_driver);
-- 
cgit 


From b07c26511e94ab856f3700c56d582c0da36d5b4d Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Tue, 15 Oct 2013 14:54:11 -0700
Subject: openvswitch: fix vport-netdev unregister

The combination of two commits:
commit 8e4e1713e4
("openvswitch: Simplify datapath locking.")
commit 2537b4dd0a
("openvswitch:: link upper device for port devices")

introduced a bug where upper_dev wasn't unlinked upon
netdev_unregister notification

The following steps:

  modprobe openvswitch
  ovs-dpctl add-dp test
  ip tuntap add dev tap1 mode tap
  ovs-dpctl add-if test tap1
  ip tuntap del dev tap1 mode tap

are causing multiple warnings:

[   62.747557] gre: GRE over IPv4 demultiplexor driver
[   62.749579] openvswitch: Open vSwitch switching datapath
[   62.755087] device test entered promiscuous mode
[   62.765911] device tap1 entered promiscuous mode
[   62.766033] IPv6: ADDRCONF(NETDEV_UP): tap1: link is not ready
[   62.769017] ------------[ cut here ]------------
[   62.769022] WARNING: CPU: 1 PID: 3267 at net/core/dev.c:5501 rollback_registered_many+0x20f/0x240()
[   62.769023] Modules linked in: openvswitch gre vxlan ip_tunnel libcrc32c ip6table_filter ip6_tables ebtable_nat ebtables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_CHECKSUM iptable_mangle ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc vhost_net macvtap macvlan vhost kvm_intel kvm dm_crypt iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi hid_generic mxm_wmi eeepc_wmi asus_wmi sparse_keymap dm_multipath psmouse serio_raw usbhid hid parport_pc ppdev firewire_ohci lpc_ich firewire_core e1000e crc_itu_t binfmt_misc igb dca ptp pps_core mac_hid wmi lp parport i2o_config i2o_block video
[   62.769051] CPU: 1 PID: 3267 Comm: ip Not tainted 3.12.0-rc3+ #60
[   62.769052] Hardware name: System manufacturer System Product Name/P8Z77 WS, BIOS 3007 07/26/2012
[   62.769053]  0000000000000009 ffff8807f25cbd28 ffffffff8175e575 0000000000000006
[   62.769055]  0000000000000000 ffff8807f25cbd68 ffffffff8105314c ffff8807f25cbd58
[   62.769057]  ffff8807f2634000 ffff8807f25cbdc8 ffff8807f25cbd88 ffff8807f25cbdc8
[   62.769059] Call Trace:
[   62.769062]  [<ffffffff8175e575>] dump_stack+0x55/0x76
[   62.769065]  [<ffffffff8105314c>] warn_slowpath_common+0x8c/0xc0
[   62.769067]  [<ffffffff8105319a>] warn_slowpath_null+0x1a/0x20
[   62.769069]  [<ffffffff8162a04f>] rollback_registered_many+0x20f/0x240
[   62.769071]  [<ffffffff8162a101>] rollback_registered+0x31/0x40
[   62.769073]  [<ffffffff8162a488>] unregister_netdevice_queue+0x58/0x90
[   62.769075]  [<ffffffff8154f900>] __tun_detach+0x140/0x340
[   62.769077]  [<ffffffff8154fb36>] tun_chr_close+0x36/0x60
[   62.769080]  [<ffffffff811bddaf>] __fput+0xff/0x260
[   62.769082]  [<ffffffff811bdf5e>] ____fput+0xe/0x10
[   62.769084]  [<ffffffff8107b515>] task_work_run+0xb5/0xe0
[   62.769087]  [<ffffffff810029b9>] do_notify_resume+0x59/0x80
[   62.769089]  [<ffffffff813a41fe>] ? trace_hardirqs_on_thunk+0x3a/0x3f
[   62.769091]  [<ffffffff81770f5a>] int_signal+0x12/0x17
[   62.769093] ---[ end trace 838756c62e156ffb ]---
[   62.769481] ------------[ cut here ]------------
[   62.769485] WARNING: CPU: 1 PID: 92 at fs/sysfs/inode.c:325 sysfs_hash_and_remove+0xa9/0xb0()
[   62.769486] sysfs: can not remove 'master', no directory
[   62.769486] Modules linked in: openvswitch gre vxlan ip_tunnel libcrc32c ip6table_filter ip6_tables ebtable_nat ebtables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_CHECKSUM iptable_mangle ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc vhost_net macvtap macvlan vhost kvm_intel kvm dm_crypt iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi hid_generic mxm_wmi eeepc_wmi asus_wmi sparse_keymap dm_multipath psmouse serio_raw usbhid hid parport_pc ppdev firewire_ohci lpc_ich firewire_core e1000e crc_itu_t binfmt_misc igb dca ptp pps_core mac_hid wmi lp parport i2o_config i2o_block video
[   62.769514] CPU: 1 PID: 92 Comm: kworker/1:2 Tainted: G        W    3.12.0-rc3+ #60
[   62.769515] Hardware name: System manufacturer System Product Name/P8Z77 WS, BIOS 3007 07/26/2012
[   62.769518] Workqueue: events ovs_dp_notify_wq [openvswitch]
[   62.769519]  0000000000000009 ffff880807ad3ac8 ffffffff8175e575 0000000000000006
[   62.769521]  ffff880807ad3b18 ffff880807ad3b08 ffffffff8105314c ffff880807ad3b28
[   62.769523]  0000000000000000 ffffffff81a87a1f ffff8807f2634000 ffff880037038500
[   62.769525] Call Trace:
[   62.769528]  [<ffffffff8175e575>] dump_stack+0x55/0x76
[   62.769529]  [<ffffffff8105314c>] warn_slowpath_common+0x8c/0xc0
[   62.769531]  [<ffffffff81053236>] warn_slowpath_fmt+0x46/0x50
[   62.769533]  [<ffffffff8123e7e9>] sysfs_hash_and_remove+0xa9/0xb0
[   62.769535]  [<ffffffff81240e96>] sysfs_remove_link+0x26/0x30
[   62.769538]  [<ffffffff81631ef7>] __netdev_adjacent_dev_remove+0xf7/0x150
[   62.769540]  [<ffffffff81632037>] __netdev_adjacent_dev_unlink_lists+0x27/0x50
[   62.769542]  [<ffffffff8163213a>] __netdev_adjacent_dev_unlink_neighbour+0x3a/0x50
[   62.769544]  [<ffffffff8163218d>] netdev_upper_dev_unlink+0x3d/0x140
[   62.769548]  [<ffffffffa033c2db>] netdev_destroy+0x4b/0x80 [openvswitch]
[   62.769550]  [<ffffffffa033b696>] ovs_vport_del+0x46/0x60 [openvswitch]
[   62.769552]  [<ffffffffa0335314>] ovs_dp_detach_port+0x44/0x60 [openvswitch]
[   62.769555]  [<ffffffffa0336574>] ovs_dp_notify_wq+0xb4/0x150 [openvswitch]
[   62.769557]  [<ffffffff81075c28>] process_one_work+0x1d8/0x6a0
[   62.769559]  [<ffffffff81075bc8>] ? process_one_work+0x178/0x6a0
[   62.769562]  [<ffffffff8107659b>] worker_thread+0x11b/0x370
[   62.769564]  [<ffffffff81076480>] ? rescuer_thread+0x350/0x350
[   62.769566]  [<ffffffff8107f44a>] kthread+0xea/0xf0
[   62.769568]  [<ffffffff8107f360>] ? flush_kthread_worker+0x150/0x150
[   62.769570]  [<ffffffff81770bac>] ret_from_fork+0x7c/0xb0
[   62.769572]  [<ffffffff8107f360>] ? flush_kthread_worker+0x150/0x150
[   62.769573] ---[ end trace 838756c62e156ffc ]---
[   62.769574] ------------[ cut here ]------------
[   62.769576] WARNING: CPU: 1 PID: 92 at fs/sysfs/inode.c:325 sysfs_hash_and_remove+0xa9/0xb0()
[   62.769577] sysfs: can not remove 'upper_test', no directory
[   62.769577] Modules linked in: openvswitch gre vxlan ip_tunnel libcrc32c ip6table_filter ip6_tables ebtable_nat ebtables nf_conntrack_ipv4 nf_defrag_ipv4 xt_state nf_conntrack xt_CHECKSUM iptable_mangle ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc vhost_net macvtap macvlan vhost kvm_intel kvm dm_crypt iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi hid_generic mxm_wmi eeepc_wmi asus_wmi sparse_keymap dm_multipath psmouse serio_raw usbhid hid parport_pc ppdev firewire_ohci lpc_ich firewire_core e1000e crc_itu_t binfmt_misc igb dca ptp pps_core mac_hid wmi lp parport i2o_config i2o_block video
[   62.769603] CPU: 1 PID: 92 Comm: kworker/1:2 Tainted: G        W    3.12.0-rc3+ #60
[   62.769604] Hardware name: System manufacturer System Product Name/P8Z77 WS, BIOS 3007 07/26/2012
[   62.769606] Workqueue: events ovs_dp_notify_wq [openvswitch]
[   62.769607]  0000000000000009 ffff880807ad3ac8 ffffffff8175e575 0000000000000006
[   62.769609]  ffff880807ad3b18 ffff880807ad3b08 ffffffff8105314c ffff880807ad3b58
[   62.769611]  0000000000000000 ffff880807ad3bd9 ffff8807f2634000 ffff880037038500
[   62.769613] Call Trace:
[   62.769615]  [<ffffffff8175e575>] dump_stack+0x55/0x76
[   62.769617]  [<ffffffff8105314c>] warn_slowpath_common+0x8c/0xc0
[   62.769619]  [<ffffffff81053236>] warn_slowpath_fmt+0x46/0x50
[   62.769621]  [<ffffffff8123e7e9>] sysfs_hash_and_remove+0xa9/0xb0
[   62.769622]  [<ffffffff81240e96>] sysfs_remove_link+0x26/0x30
[   62.769624]  [<ffffffff81631f22>] __netdev_adjacent_dev_remove+0x122/0x150
[   62.769627]  [<ffffffff81632037>] __netdev_adjacent_dev_unlink_lists+0x27/0x50
[   62.769629]  [<ffffffff8163213a>] __netdev_adjacent_dev_unlink_neighbour+0x3a/0x50
[   62.769631]  [<ffffffff8163218d>] netdev_upper_dev_unlink+0x3d/0x140
[   62.769633]  [<ffffffffa033c2db>] netdev_destroy+0x4b/0x80 [openvswitch]
[   62.769636]  [<ffffffffa033b696>] ovs_vport_del+0x46/0x60 [openvswitch]
[   62.769638]  [<ffffffffa0335314>] ovs_dp_detach_port+0x44/0x60 [openvswitch]
[   62.769640]  [<ffffffffa0336574>] ovs_dp_notify_wq+0xb4/0x150 [openvswitch]
[   62.769642]  [<ffffffff81075c28>] process_one_work+0x1d8/0x6a0
[   62.769644]  [<ffffffff81075bc8>] ? process_one_work+0x178/0x6a0
[   62.769646]  [<ffffffff8107659b>] worker_thread+0x11b/0x370
[   62.769648]  [<ffffffff81076480>] ? rescuer_thread+0x350/0x350
[   62.769650]  [<ffffffff8107f44a>] kthread+0xea/0xf0
[   62.769652]  [<ffffffff8107f360>] ? flush_kthread_worker+0x150/0x150
[   62.769654]  [<ffffffff81770bac>] ret_from_fork+0x7c/0xb0
[   62.769656]  [<ffffffff8107f360>] ? flush_kthread_worker+0x150/0x150
[   62.769657] ---[ end trace 838756c62e156ffd ]---
[   62.769724] device tap1 left promiscuous mode

This patch also affects moving devices between net namespaces.

OVS used to ignore netns move notifications which caused problems.
Like:
  ovs-dpctl add-if test tap1
  ip link set tap1 netns 3512
and then removing tap1 inside the namespace will cause hang on missing dev_put.

With this patch OVS will detach dev upon receiving netns move event.

Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
---
 net/openvswitch/dp_notify.c    |  7 +++++--
 net/openvswitch/vport-netdev.c | 16 +++++++++++++---
 net/openvswitch/vport-netdev.h |  1 +
 3 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/net/openvswitch/dp_notify.c b/net/openvswitch/dp_notify.c
index c3235675f359..5c2dab276109 100644
--- a/net/openvswitch/dp_notify.c
+++ b/net/openvswitch/dp_notify.c
@@ -65,8 +65,7 @@ void ovs_dp_notify_wq(struct work_struct *work)
 					continue;
 
 				netdev_vport = netdev_vport_priv(vport);
-				if (netdev_vport->dev->reg_state == NETREG_UNREGISTERED ||
-				    netdev_vport->dev->reg_state == NETREG_UNREGISTERING)
+				if (!(netdev_vport->dev->priv_flags & IFF_OVS_DATAPATH))
 					dp_detach_port_notify(vport);
 			}
 		}
@@ -88,6 +87,10 @@ static int dp_device_event(struct notifier_block *unused, unsigned long event,
 		return NOTIFY_DONE;
 
 	if (event == NETDEV_UNREGISTER) {
+		/* upper_dev_unlink and decrement promisc immediately */
+		ovs_netdev_detach_dev(vport);
+
+		/* schedule vport destroy, dev_put and genl notification */
 		ovs_net = net_generic(dev_net(dev), ovs_net_id);
 		queue_work(system_wq, &ovs_net->dp_notify_work);
 	}
diff --git a/net/openvswitch/vport-netdev.c b/net/openvswitch/vport-netdev.c
index 09d93c13cfd6..d21f77d875ba 100644
--- a/net/openvswitch/vport-netdev.c
+++ b/net/openvswitch/vport-netdev.c
@@ -150,15 +150,25 @@ static void free_port_rcu(struct rcu_head *rcu)
 	ovs_vport_free(vport_from_priv(netdev_vport));
 }
 
-static void netdev_destroy(struct vport *vport)
+void ovs_netdev_detach_dev(struct vport *vport)
 {
 	struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
 
-	rtnl_lock();
+	ASSERT_RTNL();
 	netdev_vport->dev->priv_flags &= ~IFF_OVS_DATAPATH;
 	netdev_rx_handler_unregister(netdev_vport->dev);
-	netdev_upper_dev_unlink(netdev_vport->dev, get_dpdev(vport->dp));
+	netdev_upper_dev_unlink(netdev_vport->dev,
+				netdev_master_upper_dev_get(netdev_vport->dev));
 	dev_set_promiscuity(netdev_vport->dev, -1);
+}
+
+static void netdev_destroy(struct vport *vport)
+{
+	struct netdev_vport *netdev_vport = netdev_vport_priv(vport);
+
+	rtnl_lock();
+	if (netdev_vport->dev->priv_flags & IFF_OVS_DATAPATH)
+		ovs_netdev_detach_dev(vport);
 	rtnl_unlock();
 
 	call_rcu(&netdev_vport->rcu, free_port_rcu);
diff --git a/net/openvswitch/vport-netdev.h b/net/openvswitch/vport-netdev.h
index dd298b5c5cdb..8df01c1127e5 100644
--- a/net/openvswitch/vport-netdev.h
+++ b/net/openvswitch/vport-netdev.h
@@ -39,5 +39,6 @@ netdev_vport_priv(const struct vport *vport)
 }
 
 const char *ovs_netdev_get_name(const struct vport *);
+void ovs_netdev_detach_dev(struct vport *);
 
 #endif /* vport_netdev.h */
-- 
cgit 


From 2d2c476f3c075bd2fdfce479245b2bf4d0879ec6 Mon Sep 17 00:00:00 2001
From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Date: Wed, 16 Oct 2013 16:24:56 +0200
Subject: ARM: AT91: pm: Factorize standby function

Detect presence of second bank. So we do not need to have on function per SoC

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 arch/arm/mach-at91/at91sam9260.c |  2 +-
 arch/arm/mach-at91/at91sam9261.c |  2 +-
 arch/arm/mach-at91/at91sam9263.c |  2 +-
 arch/arm/mach-at91/at91sam9g45.c |  2 +-
 arch/arm/mach-at91/at91sam9rl.c  |  2 +-
 arch/arm/mach-at91/pm.h          | 55 ++++++++++++++++++----------------------
 6 files changed, 29 insertions(+), 36 deletions(-)

diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c
index ffe9ce70b53a..3b43d562d79c 100644
--- a/arch/arm/mach-at91/at91sam9260.c
+++ b/arch/arm/mach-at91/at91sam9260.c
@@ -353,7 +353,7 @@ static void __init at91sam9260_initialize(void)
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9260_gpio, 3);
 
-	at91_pm_set_standby(at91sam9_standby);
+	at91_pm_set_standby(at91sam9_sdram_standby);
 }
 
 /* --------------------------------------------------------------------
diff --git a/arch/arm/mach-at91/at91sam9261.c b/arch/arm/mach-at91/at91sam9261.c
index 1edbb6fd4636..a0857c30a914 100644
--- a/arch/arm/mach-at91/at91sam9261.c
+++ b/arch/arm/mach-at91/at91sam9261.c
@@ -295,7 +295,7 @@ static void __init at91sam9261_initialize(void)
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9261_gpio, 3);
 
-	at91_pm_set_sandby(at91sam9_standby);
+	at91_pm_set_standby(at91sam9_sdram_standby);
 }
 
 /* --------------------------------------------------------------------
diff --git a/arch/arm/mach-at91/at91sam9263.c b/arch/arm/mach-at91/at91sam9263.c
index 8c81c890618c..103a95baa8e2 100644
--- a/arch/arm/mach-at91/at91sam9263.c
+++ b/arch/arm/mach-at91/at91sam9263.c
@@ -332,7 +332,7 @@ static void __init at91sam9263_initialize(void)
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9263_gpio, 5);
 
-	at91_pm_set_standby(at91sam9263_standby);
+	at91_pm_set_standby(at91sam9_sdram_standby);
 }
 
 /* --------------------------------------------------------------------
diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c
index 8460f521c20b..f29731e9968c 100644
--- a/arch/arm/mach-at91/at91sam9g45.c
+++ b/arch/arm/mach-at91/at91sam9g45.c
@@ -381,7 +381,7 @@ static void __init at91sam9g45_initialize(void)
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9g45_gpio, 5);
 
-	at91_pm_set_standby(at91sam9g45_standby);
+	at91_pm_set_standby(at91_ddr_standby);
 }
 
 /* --------------------------------------------------------------------
diff --git a/arch/arm/mach-at91/at91sam9rl.c b/arch/arm/mach-at91/at91sam9rl.c
index c7986e4f4e0e..9e28f419f414 100644
--- a/arch/arm/mach-at91/at91sam9rl.c
+++ b/arch/arm/mach-at91/at91sam9rl.c
@@ -298,7 +298,7 @@ static void __init at91sam9rl_initialize(void)
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9rl_gpio, 4);
 
-	at91_pm_set_standby(at91sam9_standby);
+	at91_pm_set_standby(at91sam9_sdram_standby);
 }
 
 /* --------------------------------------------------------------------
diff --git a/arch/arm/mach-at91/pm.h b/arch/arm/mach-at91/pm.h
index 76dd1a749ebd..3ed190ce062b 100644
--- a/arch/arm/mach-at91/pm.h
+++ b/arch/arm/mach-at91/pm.h
@@ -49,16 +49,18 @@ static inline void at91rm9200_standby(void)
 /* We manage both DDRAM/SDRAM controllers, we need more than one value to
  * remember.
  */
-static inline void at91sam9g45_standby(void)
+static inline void at91_ddr_standby(void)
 {
 	/* Those two values allow us to delay self-refresh activation
 	 * to the maximum. */
-	u32 lpr0, lpr1;
-	u32 saved_lpr0, saved_lpr1;
+	u32 lpr0, lpr1 = 0;
+	u32 saved_lpr0, saved_lpr1 = 0;
 
-	saved_lpr1 = at91_ramc_read(1, AT91_DDRSDRC_LPR);
-	lpr1 = saved_lpr1 & ~AT91_DDRSDRC_LPCB;
-	lpr1 |= AT91_DDRSDRC_LPCB_SELF_REFRESH;
+	if (at91_ramc_base[1]) {
+		saved_lpr1 = at91_ramc_read(1, AT91_DDRSDRC_LPR);
+		lpr1 = saved_lpr1 & ~AT91_DDRSDRC_LPCB;
+		lpr1 |= AT91_DDRSDRC_LPCB_SELF_REFRESH;
+	}
 
 	saved_lpr0 = at91_ramc_read(0, AT91_DDRSDRC_LPR);
 	lpr0 = saved_lpr0 & ~AT91_DDRSDRC_LPCB;
@@ -66,25 +68,29 @@ static inline void at91sam9g45_standby(void)
 
 	/* self-refresh mode now */
 	at91_ramc_write(0, AT91_DDRSDRC_LPR, lpr0);
-	at91_ramc_write(1, AT91_DDRSDRC_LPR, lpr1);
+	if (at91_ramc_base[1])
+		at91_ramc_write(1, AT91_DDRSDRC_LPR, lpr1);
 
 	cpu_do_idle();
 
 	at91_ramc_write(0, AT91_DDRSDRC_LPR, saved_lpr0);
-	at91_ramc_write(1, AT91_DDRSDRC_LPR, saved_lpr1);
+	if (at91_ramc_base[1])
+		at91_ramc_write(1, AT91_DDRSDRC_LPR, saved_lpr1);
 }
 
 /* We manage both DDRAM/SDRAM controllers, we need more than one value to
  * remember.
  */
-static inline void at91sam9263_standby(void)
+static inline void at91sam9_sdram_standby(void)
 {
-	u32 lpr0, lpr1;
-	u32 saved_lpr0, saved_lpr1;
+	u32 lpr0, lpr1 = 0;
+	u32 saved_lpr0, saved_lpr1 = 0;
 
-	saved_lpr1 = at91_ramc_read(1, AT91_SDRAMC_LPR);
-	lpr1 = saved_lpr1 & ~AT91_SDRAMC_LPCB;
-	lpr1 |= AT91_SDRAMC_LPCB_SELF_REFRESH;
+	if (at91_ramc_base[1]) {
+		saved_lpr1 = at91_ramc_read(1, AT91_SDRAMC_LPR);
+		lpr1 = saved_lpr1 & ~AT91_SDRAMC_LPCB;
+		lpr1 |= AT91_SDRAMC_LPCB_SELF_REFRESH;
+	}
 
 	saved_lpr0 = at91_ramc_read(0, AT91_SDRAMC_LPR);
 	lpr0 = saved_lpr0 & ~AT91_SDRAMC_LPCB;
@@ -92,27 +98,14 @@ static inline void at91sam9263_standby(void)
 
 	/* self-refresh mode now */
 	at91_ramc_write(0, AT91_SDRAMC_LPR, lpr0);
-	at91_ramc_write(1, AT91_SDRAMC_LPR, lpr1);
+	if (at91_ramc_base[1])
+		at91_ramc_write(1, AT91_SDRAMC_LPR, lpr1);
 
 	cpu_do_idle();
 
 	at91_ramc_write(0, AT91_SDRAMC_LPR, saved_lpr0);
-	at91_ramc_write(1, AT91_SDRAMC_LPR, saved_lpr1);
-}
-
-static inline void at91sam9_standby(void)
-{
-	u32 saved_lpr, lpr;
-
-	saved_lpr = at91_ramc_read(0, AT91_SDRAMC_LPR);
-
-	lpr = saved_lpr & ~AT91_SDRAMC_LPCB;
-	at91_ramc_write(0, AT91_SDRAMC_LPR, lpr |
-			AT91_SDRAMC_LPCB_SELF_REFRESH);
-
-	cpu_do_idle();
-
-	at91_ramc_write(0, AT91_SDRAMC_LPR, saved_lpr);
+	if (at91_ramc_base[1])
+		at91_ramc_write(1, AT91_SDRAMC_LPR, saved_lpr1);
 }
 
 #endif
-- 
cgit 


From 6b625891c6b541080bdaad97bcb82bd9ecd9e44b Mon Sep 17 00:00:00 2001
From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Date: Wed, 16 Oct 2013 16:24:57 +0200
Subject: ARM: AT91: DT: pm: Select ram controller standby based on DT

Move non-dt selection to ioremap_registers init which is only called not
non-dt board.

So we can support sam9n12/sam9x5/sama5d3 too.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
 arch/arm/mach-at91/at91rm9200.c  |  3 +--
 arch/arm/mach-at91/at91sam9260.c |  3 +--
 arch/arm/mach-at91/at91sam9261.c |  3 +--
 arch/arm/mach-at91/at91sam9263.c |  3 +--
 arch/arm/mach-at91/at91sam9g45.c |  3 +--
 arch/arm/mach-at91/at91sam9rl.c  |  3 +--
 arch/arm/mach-at91/setup.c       | 14 +++++++++++---
 7 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c
index 0d234f2a04b3..25805f2f6010 100644
--- a/arch/arm/mach-at91/at91rm9200.c
+++ b/arch/arm/mach-at91/at91rm9200.c
@@ -328,6 +328,7 @@ static void __init at91rm9200_ioremap_registers(void)
 {
 	at91rm9200_ioremap_st(AT91RM9200_BASE_ST);
 	at91_ioremap_ramc(0, AT91RM9200_BASE_MC, 256);
+	at91_pm_set_standby(at91rm9200_standby);
 }
 
 static void __init at91rm9200_initialize(void)
@@ -338,8 +339,6 @@ static void __init at91rm9200_initialize(void)
 	/* Initialize GPIO subsystem */
 	at91_gpio_init(at91rm9200_gpio,
 		cpu_is_at91rm9200_bga() ? AT91RM9200_BGA : AT91RM9200_PQFP);
-
-	at91_pm_set_standby(at91rm9200_standby);
 }
 
 
diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c
index 3b43d562d79c..f8629a3fa245 100644
--- a/arch/arm/mach-at91/at91sam9260.c
+++ b/arch/arm/mach-at91/at91sam9260.c
@@ -343,6 +343,7 @@ static void __init at91sam9260_ioremap_registers(void)
 	at91sam926x_ioremap_pit(AT91SAM9260_BASE_PIT);
 	at91sam9_ioremap_smc(0, AT91SAM9260_BASE_SMC);
 	at91_ioremap_matrix(AT91SAM9260_BASE_MATRIX);
+	at91_pm_set_standby(at91sam9_sdram_standby);
 }
 
 static void __init at91sam9260_initialize(void)
@@ -352,8 +353,6 @@ static void __init at91sam9260_initialize(void)
 
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9260_gpio, 3);
-
-	at91_pm_set_standby(at91sam9_sdram_standby);
 }
 
 /* --------------------------------------------------------------------
diff --git a/arch/arm/mach-at91/at91sam9261.c b/arch/arm/mach-at91/at91sam9261.c
index a0857c30a914..1f3867a17a28 100644
--- a/arch/arm/mach-at91/at91sam9261.c
+++ b/arch/arm/mach-at91/at91sam9261.c
@@ -285,6 +285,7 @@ static void __init at91sam9261_ioremap_registers(void)
 	at91sam926x_ioremap_pit(AT91SAM9261_BASE_PIT);
 	at91sam9_ioremap_smc(0, AT91SAM9261_BASE_SMC);
 	at91_ioremap_matrix(AT91SAM9261_BASE_MATRIX);
+	at91_pm_set_standby(at91sam9_sdram_standby);
 }
 
 static void __init at91sam9261_initialize(void)
@@ -294,8 +295,6 @@ static void __init at91sam9261_initialize(void)
 
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9261_gpio, 3);
-
-	at91_pm_set_standby(at91sam9_sdram_standby);
 }
 
 /* --------------------------------------------------------------------
diff --git a/arch/arm/mach-at91/at91sam9263.c b/arch/arm/mach-at91/at91sam9263.c
index 103a95baa8e2..90d455d294a1 100644
--- a/arch/arm/mach-at91/at91sam9263.c
+++ b/arch/arm/mach-at91/at91sam9263.c
@@ -322,6 +322,7 @@ static void __init at91sam9263_ioremap_registers(void)
 	at91sam9_ioremap_smc(0, AT91SAM9263_BASE_SMC0);
 	at91sam9_ioremap_smc(1, AT91SAM9263_BASE_SMC1);
 	at91_ioremap_matrix(AT91SAM9263_BASE_MATRIX);
+	at91_pm_set_standby(at91sam9_sdram_standby);
 }
 
 static void __init at91sam9263_initialize(void)
@@ -331,8 +332,6 @@ static void __init at91sam9263_initialize(void)
 
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9263_gpio, 5);
-
-	at91_pm_set_standby(at91sam9_sdram_standby);
 }
 
 /* --------------------------------------------------------------------
diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c
index f29731e9968c..e9bf0b8f40eb 100644
--- a/arch/arm/mach-at91/at91sam9g45.c
+++ b/arch/arm/mach-at91/at91sam9g45.c
@@ -371,6 +371,7 @@ static void __init at91sam9g45_ioremap_registers(void)
 	at91sam926x_ioremap_pit(AT91SAM9G45_BASE_PIT);
 	at91sam9_ioremap_smc(0, AT91SAM9G45_BASE_SMC);
 	at91_ioremap_matrix(AT91SAM9G45_BASE_MATRIX);
+	at91_pm_set_standby(at91_ddr_standby);
 }
 
 static void __init at91sam9g45_initialize(void)
@@ -380,8 +381,6 @@ static void __init at91sam9g45_initialize(void)
 
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9g45_gpio, 5);
-
-	at91_pm_set_standby(at91_ddr_standby);
 }
 
 /* --------------------------------------------------------------------
diff --git a/arch/arm/mach-at91/at91sam9rl.c b/arch/arm/mach-at91/at91sam9rl.c
index 9e28f419f414..88995af09c04 100644
--- a/arch/arm/mach-at91/at91sam9rl.c
+++ b/arch/arm/mach-at91/at91sam9rl.c
@@ -288,6 +288,7 @@ static void __init at91sam9rl_ioremap_registers(void)
 	at91sam926x_ioremap_pit(AT91SAM9RL_BASE_PIT);
 	at91sam9_ioremap_smc(0, AT91SAM9RL_BASE_SMC);
 	at91_ioremap_matrix(AT91SAM9RL_BASE_MATRIX);
+	at91_pm_set_standby(at91sam9_sdram_standby);
 }
 
 static void __init at91sam9rl_initialize(void)
@@ -297,8 +298,6 @@ static void __init at91sam9rl_initialize(void)
 
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9rl_gpio, 4);
-
-	at91_pm_set_standby(at91sam9_sdram_standby);
 }
 
 /* --------------------------------------------------------------------
diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c
index b17fbcf4d9e8..094b3459c288 100644
--- a/arch/arm/mach-at91/setup.c
+++ b/arch/arm/mach-at91/setup.c
@@ -23,6 +23,7 @@
 #include "at91_shdwc.h"
 #include "soc.h"
 #include "generic.h"
+#include "pm.h"
 
 struct at91_init_soc __initdata at91_boot_soc;
 
@@ -376,15 +377,16 @@ static void at91_dt_rstc(void)
 }
 
 static struct of_device_id ramc_ids[] = {
-	{ .compatible = "atmel,at91rm9200-sdramc" },
-	{ .compatible = "atmel,at91sam9260-sdramc" },
-	{ .compatible = "atmel,at91sam9g45-ddramc" },
+	{ .compatible = "atmel,at91rm9200-sdramc", .data = at91rm9200_standby },
+	{ .compatible = "atmel,at91sam9260-sdramc", .data = at91sam9_sdram_standby },
+	{ .compatible = "atmel,at91sam9g45-ddramc", .data = at91_ddr_standby },
 	{ /*sentinel*/ }
 };
 
 static void at91_dt_ramc(void)
 {
 	struct device_node *np;
+	const struct of_device_id *of_id;
 
 	np = of_find_matching_node(NULL, ramc_ids);
 	if (!np)
@@ -396,6 +398,12 @@ static void at91_dt_ramc(void)
 	/* the controller may have 2 banks */
 	at91_ramc_base[1] = of_iomap(np, 1);
 
+	of_id = of_match_node(ramc_ids, np);
+	if (!of_id)
+		pr_warn("AT91: ramc no standby function available\n");
+	else
+		at91_pm_set_standby(of_id->data);
+
 	of_node_put(np);
 }
 
-- 
cgit 


From 1bab64d50e09706ee2e634b2df3c53346f0a0dbb Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Wed, 16 Oct 2013 23:58:10 +0200
Subject: acpi-cpufreq: Add comment under ACPI_ADR_SPACE_SYSTEM_IO case

policy->cur is now set by cpufreq core when cpufreq_driver->get() is defined and
so drivers aren't required to set it. When space_id is ACPI_ADR_SPACE_SYSTEM_IO
for acpi cpufreq driver it doesn't set ->get to a valid function pointer and so
policy->cur is required to be set by driver.

This is already followed in acpi-cpufreq driver. This patch adds a comment
describing why we need to set policy->cur from driver.

Suggested-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/acpi-cpufreq.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index a8dac7b53042..a1717d7367c1 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -837,7 +837,12 @@ static int acpi_cpufreq_cpu_init(struct cpufreq_policy *policy)
 
 	switch (perf->control_register.space_id) {
 	case ACPI_ADR_SPACE_SYSTEM_IO:
-		/* Current speed is unknown and not detectable by IO port */
+		/*
+		 * The core will not set policy->cur, because
+		 * cpufreq_driver->get is NULL, so we need to set it here.
+		 * However, we have to guess it, because the current speed is
+		 * unknown and not detectable via IO ports.
+		 */
 		policy->cur = acpi_cpufreq_guess_freq(data, policy->cpu);
 		break;
 	case ACPI_ADR_SPACE_FIXED_HARDWARE:
-- 
cgit 


From 7b6f38f09ebb4b88e8ed7740bcbcc08a8882bbb7 Mon Sep 17 00:00:00 2001
From: Evgeny Kapaev <orener300@gmail.com>
Date: Tue, 15 Oct 2013 21:42:52 +0400
Subject: speedstep-centrino: Remove unnecessary braces

As per coding style, braces {} are not necessary for single statement block

Signed-off-by: Evgeny Kapaev <orener300@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/speedstep-centrino.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c
index 6b882c7b3219..25e45f89acac 100644
--- a/drivers/cpufreq/speedstep-centrino.c
+++ b/drivers/cpufreq/speedstep-centrino.c
@@ -371,9 +371,8 @@ static int centrino_cpu_init(struct cpufreq_policy *policy)
 		return -ENODEV;
 	}
 
-	if (centrino_cpu_init_table(policy)) {
+	if (centrino_cpu_init_table(policy))
 		return -ENODEV;
-	}
 
 	/* Check to see if Enhanced SpeedStep is enabled, and try to
 	   enable it if not. */
-- 
cgit 


From 31407478a7b56187f9912eb6882a3c623365319f Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 16 Oct 2013 13:22:35 +0100
Subject: spi/atmel: Convert to devm_ioremap_resource()

This simplifies error handling.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-atmel.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index ce4953f74423..118a938776bd 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -1546,7 +1546,7 @@ static int atmel_spi_probe(struct platform_device *pdev)
 	INIT_LIST_HEAD(&as->queue);
 
 	as->pdev = pdev;
-	as->regs = ioremap(regs->start, resource_size(regs));
+	as->regs = devm_ioremap_resource(&pdev->dev, regs);
 	if (!as->regs)
 		goto out_free_buffer;
 	as->phybase = regs->start;
@@ -1617,7 +1617,6 @@ out_free_dma:
 out_free_irq:
 	free_irq(irq, master);
 out_unmap_regs:
-	iounmap(as->regs);
 out_free_buffer:
 	if (!as->use_pdc)
 		tasklet_kill(&as->tasklet);
@@ -1669,7 +1668,6 @@ static int atmel_spi_remove(struct platform_device *pdev)
 	clk_disable_unprepare(as->clk);
 	clk_put(as->clk);
 	free_irq(as->irq, master);
-	iounmap(as->regs);
 
 	spi_unregister_master(master);
 
-- 
cgit 


From e23feb16685a8d1c62aa5bba7ebcddf4ba57ffcb Mon Sep 17 00:00:00 2001
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: Fri, 11 Oct 2013 16:54:55 -0700
Subject: PowerCap: Documentation

Added power cap framework documentation. This explains the use of power
capping framework, sysfs and programming interface.

There are two documents:
 - Documentation/power/powercap/powercap.txt : Explains use case and APIs.
 - Documentation/ABI/testing/sysfs-class-powercap: Explains ABIs.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 Documentation/ABI/testing/sysfs-class-powercap | 152 ++++++++++++++++
 Documentation/power/powercap/powercap.txt      | 236 +++++++++++++++++++++++++
 2 files changed, 388 insertions(+)
 create mode 100644 Documentation/ABI/testing/sysfs-class-powercap
 create mode 100644 Documentation/power/powercap/powercap.txt

diff --git a/Documentation/ABI/testing/sysfs-class-powercap b/Documentation/ABI/testing/sysfs-class-powercap
new file mode 100644
index 000000000000..db3b3ff70d84
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-powercap
@@ -0,0 +1,152 @@
+What:		/sys/class/powercap/
+Date:		September 2013
+KernelVersion:	3.13
+Contact:	linux-pm@vger.kernel.org
+Description:
+		The powercap/ class sub directory belongs to the power cap
+		subsystem. Refer to
+		Documentation/power/powercap/powercap.txt for details.
+
+What:		/sys/class/powercap/<control type>
+Date:		September 2013
+KernelVersion:	3.13
+Contact:	linux-pm@vger.kernel.org
+Description:
+		A <control type> is a unique name under /sys/class/powercap.
+		Here <control type> determines how the power is going to be
+		controlled. A <control type> can contain multiple power zones.
+
+What:		/sys/class/powercap/<control type>/enabled
+Date:		September 2013
+KernelVersion:	3.13
+Contact:	linux-pm@vger.kernel.org
+Description:
+		This allows to enable/disable power capping for a "control type".
+		This status affects every power zone using this "control_type.
+
+What:		/sys/class/powercap/<control type>/<power zone>
+Date:		September 2013
+KernelVersion:	3.13
+Contact:	linux-pm@vger.kernel.org
+Description:
+		A power zone is a single or a collection of devices, which can
+		be independently monitored and controlled. A power zone sysfs
+		entry is qualified with the name of the <control type>.
+		E.g. intel-rapl:0:1:1.
+
+What:		/sys/class/powercap/<control type>/<power zone>/<child power zone>
+Date:		September 2013
+KernelVersion:	3.13
+Contact:	linux-pm@vger.kernel.org
+Description:
+		Power zones may be organized in a hierarchy in which child
+		power zones provide monitoring and control for a subset of
+		devices under the parent. For example, if there is a parent
+		power zone for a whole CPU package, each CPU core in it can
+		be a child power zone.
+
+What:		/sys/class/powercap/.../<power zone>/name
+Date:		September 2013
+KernelVersion:	3.13
+Contact:	linux-pm@vger.kernel.org
+Description:
+		Specifies the name of this power zone.
+
+What:		/sys/class/powercap/.../<power zone>/energy_uj
+Date:		September 2013
+KernelVersion:	3.13
+Contact:	linux-pm@vger.kernel.org
+Description:
+		Current energy counter in micro-joules. Write "0" to reset.
+		If the counter can not be reset, then this attribute is
+		read-only.
+
+What:		/sys/class/powercap/.../<power zone>/max_energy_range_uj
+Date:		September 2013
+KernelVersion:	3.13
+Contact:	linux-pm@vger.kernel.org
+Description:
+		Range of the above energy counter in micro-joules.
+
+
+What:		/sys/class/powercap/.../<power zone>/power_uw
+Date:		September 2013
+KernelVersion:	3.13
+Contact:	linux-pm@vger.kernel.org
+Description:
+		Current power in micro-watts.
+
+What:		/sys/class/powercap/.../<power zone>/max_power_range_uw
+Date:		September 2013
+KernelVersion:	3.13
+Contact:	linux-pm@vger.kernel.org
+Description:
+		Range of the above power value in micro-watts.
+
+What:		/sys/class/powercap/.../<power zone>/constraint_X_name
+Date:		September 2013
+KernelVersion:	3.13
+Contact:	linux-pm@vger.kernel.org
+Description:
+		Each power zone can define one or more constraints. Each
+		constraint can have an optional name. Here "X" can have values
+		from 0 to max integer.
+
+What:		/sys/class/powercap/.../<power zone>/constraint_X_power_limit_uw
+Date:		September 2013
+KernelVersion:	3.13
+Contact:	linux-pm@vger.kernel.org
+Description:
+		Power limit in micro-watts should be applicable for
+		the time window specified by "constraint_X_time_window_us".
+		Here "X" can have values from 0 to max integer.
+
+What:		/sys/class/powercap/.../<power zone>/constraint_X_time_window_us
+Date:		September 2013
+KernelVersion:	3.13
+Contact:	linux-pm@vger.kernel.org
+Description:
+		Time window in micro seconds. This is used along with
+		constraint_X_power_limit_uw to define a power constraint.
+		Here "X" can have values from 0 to max integer.
+
+
+What:		/sys/class/powercap/<control type>/.../constraint_X_max_power_uw
+Date:		September 2013
+KernelVersion:	3.13
+Contact:	linux-pm@vger.kernel.org
+Description:
+		Maximum allowed power in micro watts for this constraint.
+		Here "X" can have values from 0 to max integer.
+
+What:		/sys/class/powercap/<control type>/.../constraint_X_min_power_uw
+Date:		September 2013
+KernelVersion:	3.13
+Contact:	linux-pm@vger.kernel.org
+Description:
+		Minimum allowed power in micro watts for this constraint.
+		Here "X" can have values from 0 to max integer.
+
+What:		/sys/class/powercap/.../<power zone>/constraint_X_max_time_window_us
+Date:		September 2013
+KernelVersion:	3.13
+Contact:	linux-pm@vger.kernel.org
+Description:
+		Maximum allowed time window in micro seconds for this
+		constraint. Here "X" can have values from 0 to max integer.
+
+What:		/sys/class/powercap/.../<power zone>/constraint_X_min_time_window_us
+Date:		September 2013
+KernelVersion:	3.13
+Contact:	linux-pm@vger.kernel.org
+Description:
+		Minimum allowed time window in micro seconds for this
+		constraint. Here "X" can have values from 0 to max integer.
+
+What:		/sys/class/powercap/.../<power zone>/enabled
+Date:		September 2013
+KernelVersion:	3.13
+Contact:	linux-pm@vger.kernel.org
+Description
+		This allows to enable/disable power capping at power zone level.
+		This applies to current power zone and its children.
diff --git a/Documentation/power/powercap/powercap.txt b/Documentation/power/powercap/powercap.txt
new file mode 100644
index 000000000000..1e6ef164e07a
--- /dev/null
+++ b/Documentation/power/powercap/powercap.txt
@@ -0,0 +1,236 @@
+Power Capping Framework
+==================================
+
+The power capping framework provides a consistent interface between the kernel
+and the user space that allows power capping drivers to expose the settings to
+user space in a uniform way.
+
+Terminology
+=========================
+The framework exposes power capping devices to user space via sysfs in the
+form of a tree of objects. The objects at the root level of the tree represent
+'control types', which correspond to different methods of power capping.  For
+example, the intel-rapl control type represents the Intel "Running Average
+Power Limit" (RAPL) technology, whereas the 'idle-injection' control type
+corresponds to the use of idle injection for controlling power.
+
+Power zones represent different parts of the system, which can be controlled and
+monitored using the power capping method determined by the control type the
+given zone belongs to. They each contain attributes for monitoring power, as
+well as controls represented in the form of power constraints.  If the parts of
+the system represented by different power zones are hierarchical (that is, one
+bigger part consists of multiple smaller parts that each have their own power
+controls), those power zones may also be organized in a hierarchy with one
+parent power zone containing multiple subzones and so on to reflect the power
+control topology of the system.  In that case, it is possible to apply power
+capping to a set of devices together using the parent power zone and if more
+fine grained control is required, it can be applied through the subzones.
+
+
+Example sysfs interface tree:
+
+/sys/devices/virtual/powercap
+??? intel-rapl
+    ??? intel-rapl:0
+    ?   ??? constraint_0_name
+    ?   ??? constraint_0_power_limit_uw
+    ?   ??? constraint_0_time_window_us
+    ?   ??? constraint_1_name
+    ?   ??? constraint_1_power_limit_uw
+    ?   ??? constraint_1_time_window_us
+    ?   ??? device -> ../../intel-rapl
+    ?   ??? energy_uj
+    ?   ??? intel-rapl:0:0
+    ?   ?   ??? constraint_0_name
+    ?   ?   ??? constraint_0_power_limit_uw
+    ?   ?   ??? constraint_0_time_window_us
+    ?   ?   ??? constraint_1_name
+    ?   ?   ??? constraint_1_power_limit_uw
+    ?   ?   ??? constraint_1_time_window_us
+    ?   ?   ??? device -> ../../intel-rapl:0
+    ?   ?   ??? energy_uj
+    ?   ?   ??? max_energy_range_uj
+    ?   ?   ??? name
+    ?   ?   ??? enabled
+    ?   ?   ??? power
+    ?   ?   ?   ??? async
+    ?   ?   ?   []
+    ?   ?   ??? subsystem -> ../../../../../../class/power_cap
+    ?   ?   ??? uevent
+    ?   ??? intel-rapl:0:1
+    ?   ?   ??? constraint_0_name
+    ?   ?   ??? constraint_0_power_limit_uw
+    ?   ?   ??? constraint_0_time_window_us
+    ?   ?   ??? constraint_1_name
+    ?   ?   ??? constraint_1_power_limit_uw
+    ?   ?   ??? constraint_1_time_window_us
+    ?   ?   ??? device -> ../../intel-rapl:0
+    ?   ?   ??? energy_uj
+    ?   ?   ??? max_energy_range_uj
+    ?   ?   ??? name
+    ?   ?   ??? enabled
+    ?   ?   ??? power
+    ?   ?   ?   ??? async
+    ?   ?   ?   []
+    ?   ?   ??? subsystem -> ../../../../../../class/power_cap
+    ?   ?   ??? uevent
+    ?   ??? max_energy_range_uj
+    ?   ??? max_power_range_uw
+    ?   ??? name
+    ?   ??? enabled
+    ?   ??? power
+    ?   ?   ??? async
+    ?   ?   []
+    ?   ??? subsystem -> ../../../../../class/power_cap
+    ?   ??? enabled
+    ?   ??? uevent
+    ??? intel-rapl:1
+    ?   ??? constraint_0_name
+    ?   ??? constraint_0_power_limit_uw
+    ?   ??? constraint_0_time_window_us
+    ?   ??? constraint_1_name
+    ?   ??? constraint_1_power_limit_uw
+    ?   ??? constraint_1_time_window_us
+    ?   ??? device -> ../../intel-rapl
+    ?   ??? energy_uj
+    ?   ??? intel-rapl:1:0
+    ?   ?   ??? constraint_0_name
+    ?   ?   ??? constraint_0_power_limit_uw
+    ?   ?   ??? constraint_0_time_window_us
+    ?   ?   ??? constraint_1_name
+    ?   ?   ??? constraint_1_power_limit_uw
+    ?   ?   ??? constraint_1_time_window_us
+    ?   ?   ??? device -> ../../intel-rapl:1
+    ?   ?   ??? energy_uj
+    ?   ?   ??? max_energy_range_uj
+    ?   ?   ??? name
+    ?   ?   ??? enabled
+    ?   ?   ??? power
+    ?   ?   ?   ??? async
+    ?   ?   ?   []
+    ?   ?   ??? subsystem -> ../../../../../../class/power_cap
+    ?   ?   ??? uevent
+    ?   ??? intel-rapl:1:1
+    ?   ?   ??? constraint_0_name
+    ?   ?   ??? constraint_0_power_limit_uw
+    ?   ?   ??? constraint_0_time_window_us
+    ?   ?   ??? constraint_1_name
+    ?   ?   ??? constraint_1_power_limit_uw
+    ?   ?   ??? constraint_1_time_window_us
+    ?   ?   ??? device -> ../../intel-rapl:1
+    ?   ?   ??? energy_uj
+    ?   ?   ??? max_energy_range_uj
+    ?   ?   ??? name
+    ?   ?   ??? enabled
+    ?   ?   ??? power
+    ?   ?   ?   ??? async
+    ?   ?   ?   []
+    ?   ?   ??? subsystem -> ../../../../../../class/power_cap
+    ?   ?   ??? uevent
+    ?   ??? max_energy_range_uj
+    ?   ??? max_power_range_uw
+    ?   ??? name
+    ?   ??? enabled
+    ?   ??? power
+    ?   ?   ??? async
+    ?   ?   []
+    ?   ??? subsystem -> ../../../../../class/power_cap
+    ?   ??? uevent
+    ??? power
+    ?   ??? async
+    ?   []
+    ??? subsystem -> ../../../../class/power_cap
+    ??? enabled
+    ??? uevent
+
+The above example illustrates a case in which the Intel RAPL technology,
+available in Intel® IA-64 and IA-32 Processor Architectures, is used. There is one
+control type called intel-rapl which contains two power zones, intel-rapl:0 and
+intel-rapl:1, representing CPU packages.  Each of these power zones contains
+two subzones, intel-rapl:j:0 and intel-rapl:j:1 (j = 0, 1), representing the
+"core" and the "uncore" parts of the given CPU package, respectively.  All of
+the zones and subzones contain energy monitoring attributes (energy_uj,
+max_energy_range_uj) and constraint attributes (constraint_*) allowing controls
+to be applied (the constraints in the 'package' power zones apply to the whole
+CPU packages and the subzone constraints only apply to the respective parts of
+the given package individually). Since Intel RAPL doesn't provide instantaneous
+power value, there is no power_uw attribute.
+
+In addition to that, each power zone contains a name attribute, allowing the
+part of the system represented by that zone to be identified.
+For example:
+
+cat /sys/class/power_cap/intel-rapl/intel-rapl:0/name
+package-0
+
+The Intel RAPL technology allows two constraints, short term and long term,
+with two different time windows to be applied to each power zone.  Thus for
+each zone there are 2 attributes representing the constraint names, 2 power
+limits and 2 attributes representing the sizes of the time windows. Such that,
+constraint_j_* attributes correspond to the jth constraint (j = 0,1).
+
+For example:
+	constraint_0_name
+	constraint_0_power_limit_uw
+	constraint_0_time_window_us
+	constraint_1_name
+	constraint_1_power_limit_uw
+	constraint_1_time_window_us
+
+Power Zone Attributes
+=================================
+Monitoring attributes
+----------------------
+
+energy_uj (rw): Current energy counter in micro joules. Write "0" to reset.
+If the counter can not be reset, then this attribute is read only.
+
+max_energy_range_uj (ro): Range of the above energy counter in micro-joules.
+
+power_uw (ro): Current power in micro watts.
+
+max_power_range_uw (ro): Range of the above power value in micro-watts.
+
+name (ro): Name of this power zone.
+
+It is possible that some domains have both power ranges and energy counter ranges;
+however, only one is mandatory.
+
+Constraints
+----------------
+constraint_X_power_limit_uw (rw): Power limit in micro watts, which should be
+applicable for the time window specified by "constraint_X_time_window_us".
+
+constraint_X_time_window_us (rw): Time window in micro seconds.
+
+constraint_X_name (ro): An optional name of the constraint
+
+constraint_X_max_power_uw(ro): Maximum allowed power in micro watts.
+
+constraint_X_min_power_uw(ro): Minimum allowed power in micro watts.
+
+constraint_X_max_time_window_us(ro): Maximum allowed time window in micro seconds.
+
+constraint_X_min_time_window_us(ro): Minimum allowed time window in micro seconds.
+
+Except power_limit_uw and time_window_us other fields are optional.
+
+Common zone and control type attributes
+----------------------------------------
+enabled (rw): Enable/Disable controls at zone level or for all zones using
+a control type.
+
+Power Cap Client Driver Interface
+==================================
+The API summary:
+
+Call powercap_register_control_type() to register control type object.
+Call powercap_register_zone() to register a power zone (under a given
+control type), either as a top-level power zone or as a subzone of another
+power zone registered earlier.
+The number of constraints in a power zone and the corresponding callbacks have
+to be defined prior to calling powercap_register_zone() to register that zone.
+
+To Free a power zone call powercap_unregister_zone().
+To free a control type object call powercap_unregister_control_type().
+Detailed API can be generated using kernel-doc on include/linux/powercap.h.
-- 
cgit 


From 75d2364ea0cab3a95be3f8d1f8dabd20ac4b1b2a Mon Sep 17 00:00:00 2001
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: Fri, 11 Oct 2013 16:54:56 -0700
Subject: PowerCap: Add class driver

The power capping framework providing a consistent interface between the
kernel and user space that allows power capping drivers to expose their
settings to user space in a uniform way.
The overall design of the framework is described in the documentation
added by the previous patch in this series.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/powercap/Kconfig        |  19 ++
 drivers/powercap/Makefile       |   1 +
 drivers/powercap/powercap_sys.c | 683 ++++++++++++++++++++++++++++++++++++++++
 include/linux/powercap.h        | 325 +++++++++++++++++++
 4 files changed, 1028 insertions(+)
 create mode 100644 drivers/powercap/Kconfig
 create mode 100644 drivers/powercap/Makefile
 create mode 100644 drivers/powercap/powercap_sys.c
 create mode 100644 include/linux/powercap.h

diff --git a/drivers/powercap/Kconfig b/drivers/powercap/Kconfig
new file mode 100644
index 000000000000..a37055eb5ebc
--- /dev/null
+++ b/drivers/powercap/Kconfig
@@ -0,0 +1,19 @@
+#
+# Generic power capping sysfs interface configuration
+#
+
+menuconfig POWERCAP
+	bool "Generic powercap sysfs driver"
+	help
+	  The power capping sysfs interface allows kernel subsystems to expose power
+	  capping settings to user space in a consistent way.  Usually, it consists
+	  of multiple control types that determine which settings may be exposed and
+	  power zones representing parts of the system that can be subject to power
+	  capping.
+
+	  If you want this code to be compiled in, say Y here.
+
+if POWERCAP
+# Client driver configurations go here.
+
+endif
diff --git a/drivers/powercap/Makefile b/drivers/powercap/Makefile
new file mode 100644
index 000000000000..6defbc8dc4bf
--- /dev/null
+++ b/drivers/powercap/Makefile
@@ -0,0 +1 @@
+obj-$(CONFIG_POWERCAP)	+= powercap_sys.o
diff --git a/drivers/powercap/powercap_sys.c b/drivers/powercap/powercap_sys.c
new file mode 100644
index 000000000000..c22fa4c78eaa
--- /dev/null
+++ b/drivers/powercap/powercap_sys.c
@@ -0,0 +1,683 @@
+/*
+ * Power capping class
+ * Copyright (c) 2013, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/slab.h>
+#include <linux/powercap.h>
+
+#define to_powercap_zone(n) container_of(n, struct powercap_zone, dev)
+#define to_powercap_control_type(n) \
+			container_of(n, struct powercap_control_type, dev)
+
+/* Power zone show function */
+#define define_power_zone_show(_attr)		\
+static ssize_t _attr##_show(struct device *dev, \
+					struct device_attribute *dev_attr,\
+					char *buf) \
+{ \
+	u64 value; \
+	ssize_t len = -EINVAL; \
+	struct powercap_zone *power_zone = to_powercap_zone(dev); \
+	\
+	if (power_zone->ops->get_##_attr) { \
+		if (!power_zone->ops->get_##_attr(power_zone, &value)) \
+			len = sprintf(buf, "%lld\n", value); \
+	} \
+	\
+	return len; \
+}
+
+/* The only meaningful input is 0 (reset), others are silently ignored */
+#define define_power_zone_store(_attr)		\
+static ssize_t _attr##_store(struct device *dev,\
+				struct device_attribute *dev_attr, \
+				const char *buf, size_t count) \
+{ \
+	int err; \
+	struct powercap_zone *power_zone = to_powercap_zone(dev); \
+	u64 value; \
+	\
+	err = kstrtoull(buf, 10, &value); \
+	if (err) \
+		return -EINVAL; \
+	if (value) \
+		return count; \
+	if (power_zone->ops->reset_##_attr) { \
+		if (!power_zone->ops->reset_##_attr(power_zone)) \
+			return count; \
+	} \
+	\
+	return -EINVAL; \
+}
+
+/* Power zone constraint show function */
+#define define_power_zone_constraint_show(_attr) \
+static ssize_t show_constraint_##_attr(struct device *dev, \
+				struct device_attribute *dev_attr,\
+				char *buf) \
+{ \
+	u64 value; \
+	ssize_t len = -ENODATA; \
+	struct powercap_zone *power_zone = to_powercap_zone(dev); \
+	int id; \
+	struct powercap_zone_constraint *pconst;\
+	\
+	if (!sscanf(dev_attr->attr.name, "constraint_%d_", &id)) \
+		return -EINVAL; \
+	if (id >= power_zone->const_id_cnt)	\
+		return -EINVAL; \
+	pconst = &power_zone->constraints[id]; \
+	if (pconst && pconst->ops && pconst->ops->get_##_attr) { \
+		if (!pconst->ops->get_##_attr(power_zone, id, &value)) \
+			len = sprintf(buf, "%lld\n", value); \
+	} \
+	\
+	return len; \
+}
+
+/* Power zone constraint store function */
+#define define_power_zone_constraint_store(_attr) \
+static ssize_t store_constraint_##_attr(struct device *dev,\
+				struct device_attribute *dev_attr, \
+				const char *buf, size_t count) \
+{ \
+	int err; \
+	u64 value; \
+	struct powercap_zone *power_zone = to_powercap_zone(dev); \
+	int id; \
+	struct powercap_zone_constraint *pconst;\
+	\
+	if (!sscanf(dev_attr->attr.name, "constraint_%d_", &id)) \
+		return -EINVAL; \
+	if (id >= power_zone->const_id_cnt)	\
+		return -EINVAL; \
+	pconst = &power_zone->constraints[id]; \
+	err = kstrtoull(buf, 10, &value); \
+	if (err) \
+		return -EINVAL; \
+	if (pconst && pconst->ops && pconst->ops->set_##_attr) { \
+		if (!pconst->ops->set_##_attr(power_zone, id, value)) \
+			return count; \
+	} \
+	\
+	return -ENODATA; \
+}
+
+/* Power zone information callbacks */
+define_power_zone_show(power_uw);
+define_power_zone_show(max_power_range_uw);
+define_power_zone_show(energy_uj);
+define_power_zone_store(energy_uj);
+define_power_zone_show(max_energy_range_uj);
+
+/* Power zone attributes */
+static DEVICE_ATTR_RO(max_power_range_uw);
+static DEVICE_ATTR_RO(power_uw);
+static DEVICE_ATTR_RO(max_energy_range_uj);
+static DEVICE_ATTR_RW(energy_uj);
+
+/* Power zone constraint attributes callbacks */
+define_power_zone_constraint_show(power_limit_uw);
+define_power_zone_constraint_store(power_limit_uw);
+define_power_zone_constraint_show(time_window_us);
+define_power_zone_constraint_store(time_window_us);
+define_power_zone_constraint_show(max_power_uw);
+define_power_zone_constraint_show(min_power_uw);
+define_power_zone_constraint_show(max_time_window_us);
+define_power_zone_constraint_show(min_time_window_us);
+
+/* For one time seeding of constraint device attributes */
+struct powercap_constraint_attr {
+	struct device_attribute power_limit_attr;
+	struct device_attribute time_window_attr;
+	struct device_attribute max_power_attr;
+	struct device_attribute min_power_attr;
+	struct device_attribute max_time_window_attr;
+	struct device_attribute min_time_window_attr;
+	struct device_attribute name_attr;
+};
+
+static struct powercap_constraint_attr
+				constraint_attrs[MAX_CONSTRAINTS_PER_ZONE];
+
+/* A list of powercap control_types */
+static LIST_HEAD(powercap_cntrl_list);
+/* Mutex to protect list of powercap control_types */
+static DEFINE_MUTEX(powercap_cntrl_list_lock);
+
+#define POWERCAP_CONSTRAINT_NAME_LEN	30 /* Some limit to avoid overflow */
+static ssize_t show_constraint_name(struct device *dev,
+				struct device_attribute *dev_attr,
+				char *buf)
+{
+	const char *name;
+	struct powercap_zone *power_zone = to_powercap_zone(dev);
+	int id;
+	ssize_t len = -ENODATA;
+	struct powercap_zone_constraint *pconst;
+
+	if (!sscanf(dev_attr->attr.name, "constraint_%d_", &id))
+		return -EINVAL;
+	if (id >= power_zone->const_id_cnt)
+		return -EINVAL;
+	pconst = &power_zone->constraints[id];
+
+	if (pconst && pconst->ops && pconst->ops->get_name) {
+		name = pconst->ops->get_name(power_zone, id);
+		if (name) {
+			snprintf(buf, POWERCAP_CONSTRAINT_NAME_LEN,
+								"%s\n", name);
+			buf[POWERCAP_CONSTRAINT_NAME_LEN] = '\0';
+			len = strlen(buf);
+		}
+	}
+
+	return len;
+}
+
+static int create_constraint_attribute(int id, const char *name,
+				int mode,
+				struct device_attribute *dev_attr,
+				ssize_t (*show)(struct device *,
+					struct device_attribute *, char *),
+				ssize_t (*store)(struct device *,
+					struct device_attribute *,
+				const char *, size_t)
+				)
+{
+
+	dev_attr->attr.name = kasprintf(GFP_KERNEL, "constraint_%d_%s",
+								id, name);
+	if (!dev_attr->attr.name)
+		return -ENOMEM;
+	dev_attr->attr.mode = mode;
+	dev_attr->show = show;
+	dev_attr->store = store;
+
+	return 0;
+}
+
+static void free_constraint_attributes(void)
+{
+	int i;
+
+	for (i = 0; i < MAX_CONSTRAINTS_PER_ZONE; ++i) {
+		kfree(constraint_attrs[i].power_limit_attr.attr.name);
+		kfree(constraint_attrs[i].time_window_attr.attr.name);
+		kfree(constraint_attrs[i].name_attr.attr.name);
+		kfree(constraint_attrs[i].max_power_attr.attr.name);
+		kfree(constraint_attrs[i].min_power_attr.attr.name);
+		kfree(constraint_attrs[i].max_time_window_attr.attr.name);
+		kfree(constraint_attrs[i].min_time_window_attr.attr.name);
+	}
+}
+
+static int seed_constraint_attributes(void)
+{
+	int i;
+	int ret;
+
+	for (i = 0; i < MAX_CONSTRAINTS_PER_ZONE; ++i) {
+		ret = create_constraint_attribute(i, "power_limit_uw",
+					S_IWUSR | S_IRUGO,
+					&constraint_attrs[i].power_limit_attr,
+					show_constraint_power_limit_uw,
+					store_constraint_power_limit_uw);
+		if (ret)
+			goto err_alloc;
+		ret = create_constraint_attribute(i, "time_window_us",
+					S_IWUSR | S_IRUGO,
+					&constraint_attrs[i].time_window_attr,
+					show_constraint_time_window_us,
+					store_constraint_time_window_us);
+		if (ret)
+			goto err_alloc;
+		ret = create_constraint_attribute(i, "name", S_IRUGO,
+				&constraint_attrs[i].name_attr,
+				show_constraint_name,
+				NULL);
+		if (ret)
+			goto err_alloc;
+		ret = create_constraint_attribute(i, "max_power_uw", S_IRUGO,
+				&constraint_attrs[i].max_power_attr,
+				show_constraint_max_power_uw,
+				NULL);
+		if (ret)
+			goto err_alloc;
+		ret = create_constraint_attribute(i, "min_power_uw", S_IRUGO,
+				&constraint_attrs[i].min_power_attr,
+				show_constraint_min_power_uw,
+				NULL);
+		if (ret)
+			goto err_alloc;
+		ret = create_constraint_attribute(i, "max_time_window_us",
+				S_IRUGO,
+				&constraint_attrs[i].max_time_window_attr,
+				show_constraint_max_time_window_us,
+				NULL);
+		if (ret)
+			goto err_alloc;
+		ret = create_constraint_attribute(i, "min_time_window_us",
+				S_IRUGO,
+				&constraint_attrs[i].min_time_window_attr,
+				show_constraint_min_time_window_us,
+				NULL);
+		if (ret)
+			goto err_alloc;
+
+	}
+
+	return 0;
+
+err_alloc:
+	free_constraint_attributes();
+
+	return ret;
+}
+
+static int create_constraints(struct powercap_zone *power_zone,
+				int nr_constraints,
+				struct powercap_zone_constraint_ops *const_ops)
+{
+	int i;
+	int ret = 0;
+	int count;
+	struct powercap_zone_constraint *pconst;
+
+	if (!power_zone || !const_ops || !const_ops->get_power_limit_uw ||
+					!const_ops->set_power_limit_uw ||
+					!const_ops->get_time_window_us ||
+					!const_ops->set_time_window_us)
+		return -EINVAL;
+
+	count = power_zone->zone_attr_count;
+	for (i = 0; i < nr_constraints; ++i) {
+		pconst = &power_zone->constraints[i];
+		pconst->ops = const_ops;
+		pconst->id = power_zone->const_id_cnt;
+		power_zone->const_id_cnt++;
+		power_zone->zone_dev_attrs[count++] =
+				&constraint_attrs[i].power_limit_attr.attr;
+		power_zone->zone_dev_attrs[count++] =
+				&constraint_attrs[i].time_window_attr.attr;
+		if (pconst->ops->get_name)
+			power_zone->zone_dev_attrs[count++] =
+				&constraint_attrs[i].name_attr.attr;
+		if (pconst->ops->get_max_power_uw)
+			power_zone->zone_dev_attrs[count++] =
+				&constraint_attrs[i].max_power_attr.attr;
+		if (pconst->ops->get_min_power_uw)
+			power_zone->zone_dev_attrs[count++] =
+				&constraint_attrs[i].min_power_attr.attr;
+		if (pconst->ops->get_max_time_window_us)
+			power_zone->zone_dev_attrs[count++] =
+				&constraint_attrs[i].max_time_window_attr.attr;
+		if (pconst->ops->get_min_time_window_us)
+			power_zone->zone_dev_attrs[count++] =
+				&constraint_attrs[i].min_time_window_attr.attr;
+	}
+	power_zone->zone_attr_count = count;
+
+	return ret;
+}
+
+static bool control_type_valid(void *control_type)
+{
+	struct powercap_control_type *pos = NULL;
+	bool found = false;
+
+	mutex_lock(&powercap_cntrl_list_lock);
+
+	list_for_each_entry(pos, &powercap_cntrl_list, node) {
+		if (pos == control_type) {
+			found = true;
+			break;
+		}
+	}
+	mutex_unlock(&powercap_cntrl_list_lock);
+
+	return found;
+}
+
+static ssize_t name_show(struct device *dev,
+				struct device_attribute *attr,
+				char *buf)
+{
+	struct powercap_zone *power_zone = to_powercap_zone(dev);
+
+	return sprintf(buf, "%s\n", power_zone->name);
+}
+
+static DEVICE_ATTR_RO(name);
+
+/* Create zone and attributes in sysfs */
+static void create_power_zone_common_attributes(
+					struct powercap_zone *power_zone)
+{
+	int count = 0;
+
+	power_zone->zone_dev_attrs[count++] = &dev_attr_name.attr;
+	if (power_zone->ops->get_max_energy_range_uj)
+		power_zone->zone_dev_attrs[count++] =
+					&dev_attr_max_energy_range_uj.attr;
+	if (power_zone->ops->get_energy_uj)
+		power_zone->zone_dev_attrs[count++] =
+					&dev_attr_energy_uj.attr;
+	if (power_zone->ops->get_power_uw)
+		power_zone->zone_dev_attrs[count++] =
+					&dev_attr_power_uw.attr;
+	if (power_zone->ops->get_max_power_range_uw)
+		power_zone->zone_dev_attrs[count++] =
+					&dev_attr_max_power_range_uw.attr;
+	power_zone->zone_dev_attrs[count] = NULL;
+	power_zone->zone_attr_count = count;
+}
+
+static void powercap_release(struct device *dev)
+{
+	bool allocated;
+
+	if (dev->parent) {
+		struct powercap_zone *power_zone = to_powercap_zone(dev);
+
+		/* Store flag as the release() may free memory */
+		allocated = power_zone->allocated;
+		/* Remove id from parent idr struct */
+		idr_remove(power_zone->parent_idr, power_zone->id);
+		/* Destroy idrs allocated for this zone */
+		idr_destroy(&power_zone->idr);
+		kfree(power_zone->name);
+		kfree(power_zone->zone_dev_attrs);
+		kfree(power_zone->constraints);
+		if (power_zone->ops->release)
+			power_zone->ops->release(power_zone);
+		if (allocated)
+			kfree(power_zone);
+	} else {
+		struct powercap_control_type *control_type =
+						to_powercap_control_type(dev);
+
+		/* Store flag as the release() may free memory */
+		allocated = control_type->allocated;
+		idr_destroy(&control_type->idr);
+		mutex_destroy(&control_type->lock);
+		if (control_type->ops && control_type->ops->release)
+			control_type->ops->release(control_type);
+		if (allocated)
+			kfree(control_type);
+	}
+}
+
+static ssize_t enabled_show(struct device *dev,
+				struct device_attribute *attr,
+				char *buf)
+{
+	bool mode = true;
+
+	/* Default is enabled */
+	if (dev->parent) {
+		struct powercap_zone *power_zone = to_powercap_zone(dev);
+		if (power_zone->ops->get_enable)
+			if (power_zone->ops->get_enable(power_zone, &mode))
+				mode = false;
+	} else {
+		struct powercap_control_type *control_type =
+						to_powercap_control_type(dev);
+		if (control_type->ops && control_type->ops->get_enable)
+			if (control_type->ops->get_enable(control_type, &mode))
+				mode = false;
+	}
+
+	return sprintf(buf, "%d\n", mode);
+}
+
+static ssize_t enabled_store(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf,  size_t len)
+{
+	bool mode;
+
+	if (strtobool(buf, &mode))
+		return -EINVAL;
+	if (dev->parent) {
+		struct powercap_zone *power_zone = to_powercap_zone(dev);
+		if (power_zone->ops->set_enable)
+			if (!power_zone->ops->set_enable(power_zone, mode))
+				return len;
+	} else {
+		struct powercap_control_type *control_type =
+						to_powercap_control_type(dev);
+		if (control_type->ops && control_type->ops->set_enable)
+			if (!control_type->ops->set_enable(control_type, mode))
+				return len;
+	}
+
+	return -ENOSYS;
+}
+
+static struct device_attribute powercap_def_attrs[] = {
+		__ATTR(enabled, S_IWUSR | S_IRUGO, enabled_show,
+							enabled_store),
+		__ATTR_NULL
+};
+
+static struct class powercap_class = {
+	.name = "powercap",
+	.dev_release = powercap_release,
+	.dev_attrs = powercap_def_attrs,
+};
+
+struct powercap_zone *powercap_register_zone(
+				struct powercap_zone *power_zone,
+				struct powercap_control_type *control_type,
+				const char *name,
+				struct powercap_zone *parent,
+				const struct powercap_zone_ops *ops,
+				int nr_constraints,
+				struct powercap_zone_constraint_ops *const_ops)
+{
+	int result;
+	int nr_attrs;
+
+	if (!name || !control_type || !ops ||
+			nr_constraints > MAX_CONSTRAINTS_PER_ZONE ||
+			(!ops->get_energy_uj && !ops->get_power_uw) ||
+			!control_type_valid(control_type))
+		return ERR_PTR(-EINVAL);
+
+	if (power_zone) {
+		if (!ops->release)
+			return ERR_PTR(-EINVAL);
+		memset(power_zone, 0, sizeof(*power_zone));
+	} else {
+		power_zone = kzalloc(sizeof(*power_zone), GFP_KERNEL);
+		if (!power_zone)
+			return ERR_PTR(-ENOMEM);
+		power_zone->allocated = true;
+	}
+	power_zone->ops = ops;
+	power_zone->control_type_inst = control_type;
+	if (!parent) {
+		power_zone->dev.parent = &control_type->dev;
+		power_zone->parent_idr = &control_type->idr;
+	} else {
+		power_zone->dev.parent = &parent->dev;
+		power_zone->parent_idr = &parent->idr;
+	}
+	power_zone->dev.class = &powercap_class;
+
+	mutex_lock(&control_type->lock);
+	/* Using idr to get the unique id */
+	result = idr_alloc(power_zone->parent_idr, NULL, 0, 0, GFP_KERNEL);
+	if (result < 0)
+		goto err_idr_alloc;
+
+	power_zone->id = result;
+	idr_init(&power_zone->idr);
+	power_zone->name = kstrdup(name, GFP_KERNEL);
+	if (!power_zone->name)
+		goto err_name_alloc;
+	dev_set_name(&power_zone->dev, "%s:%x",
+					dev_name(power_zone->dev.parent),
+					power_zone->id);
+	power_zone->constraints = kzalloc(sizeof(*power_zone->constraints) *
+					 nr_constraints, GFP_KERNEL);
+	if (!power_zone->constraints)
+		goto err_const_alloc;
+
+	nr_attrs = nr_constraints * POWERCAP_CONSTRAINTS_ATTRS +
+						POWERCAP_ZONE_MAX_ATTRS + 1;
+	power_zone->zone_dev_attrs = kzalloc(sizeof(void *) *
+						nr_attrs, GFP_KERNEL);
+	if (!power_zone->zone_dev_attrs)
+		goto err_attr_alloc;
+	create_power_zone_common_attributes(power_zone);
+	result = create_constraints(power_zone, nr_constraints, const_ops);
+	if (result)
+		goto err_dev_ret;
+
+	power_zone->zone_dev_attrs[power_zone->zone_attr_count] = NULL;
+	power_zone->dev_zone_attr_group.attrs = power_zone->zone_dev_attrs;
+	power_zone->dev_attr_groups[0] = &power_zone->dev_zone_attr_group;
+	power_zone->dev_attr_groups[1] = NULL;
+	power_zone->dev.groups = power_zone->dev_attr_groups;
+	result = device_register(&power_zone->dev);
+	if (result)
+		goto err_dev_ret;
+
+	control_type->nr_zones++;
+	mutex_unlock(&control_type->lock);
+
+	return power_zone;
+
+err_dev_ret:
+	kfree(power_zone->zone_dev_attrs);
+err_attr_alloc:
+	kfree(power_zone->constraints);
+err_const_alloc:
+	kfree(power_zone->name);
+err_name_alloc:
+	idr_remove(power_zone->parent_idr, power_zone->id);
+err_idr_alloc:
+	if (power_zone->allocated)
+		kfree(power_zone);
+	mutex_unlock(&control_type->lock);
+
+	return ERR_PTR(result);
+}
+EXPORT_SYMBOL_GPL(powercap_register_zone);
+
+int powercap_unregister_zone(struct powercap_control_type *control_type,
+				struct powercap_zone *power_zone)
+{
+	if (!power_zone || !control_type)
+		return -EINVAL;
+
+	mutex_lock(&control_type->lock);
+	control_type->nr_zones--;
+	mutex_unlock(&control_type->lock);
+
+	device_unregister(&power_zone->dev);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(powercap_unregister_zone);
+
+struct powercap_control_type *powercap_register_control_type(
+				struct powercap_control_type *control_type,
+				const char *name,
+				const struct powercap_control_type_ops *ops)
+{
+	int result;
+
+	if (!name)
+		return ERR_PTR(-EINVAL);
+	if (control_type) {
+		if (!ops || !ops->release)
+			return ERR_PTR(-EINVAL);
+		memset(control_type, 0, sizeof(*control_type));
+	} else {
+		control_type = kzalloc(sizeof(*control_type), GFP_KERNEL);
+		if (!control_type)
+			return ERR_PTR(-ENOMEM);
+		control_type->allocated = true;
+	}
+	mutex_init(&control_type->lock);
+	control_type->ops = ops;
+	INIT_LIST_HEAD(&control_type->node);
+	control_type->dev.class = &powercap_class;
+	dev_set_name(&control_type->dev, name);
+	result = device_register(&control_type->dev);
+	if (result) {
+		if (control_type->allocated)
+			kfree(control_type);
+		return ERR_PTR(result);
+	}
+	idr_init(&control_type->idr);
+
+	mutex_lock(&powercap_cntrl_list_lock);
+	list_add_tail(&control_type->node, &powercap_cntrl_list);
+	mutex_unlock(&powercap_cntrl_list_lock);
+
+	return control_type;
+}
+EXPORT_SYMBOL_GPL(powercap_register_control_type);
+
+int powercap_unregister_control_type(struct powercap_control_type *control_type)
+{
+	struct powercap_control_type *pos = NULL;
+
+	if (control_type->nr_zones) {
+		dev_err(&control_type->dev, "Zones of this type still not freed\n");
+		return -EINVAL;
+	}
+	mutex_lock(&powercap_cntrl_list_lock);
+	list_for_each_entry(pos, &powercap_cntrl_list, node) {
+		if (pos == control_type) {
+			list_del(&control_type->node);
+			mutex_unlock(&powercap_cntrl_list_lock);
+			device_unregister(&control_type->dev);
+			return 0;
+		}
+	}
+	mutex_unlock(&powercap_cntrl_list_lock);
+
+	return -ENODEV;
+}
+EXPORT_SYMBOL_GPL(powercap_unregister_control_type);
+
+static int __init powercap_init(void)
+{
+	int result = 0;
+
+	result = seed_constraint_attributes();
+	if (result)
+		return result;
+
+	result = class_register(&powercap_class);
+
+	return result;
+}
+
+device_initcall(powercap_init);
+
+MODULE_DESCRIPTION("PowerCap sysfs Driver");
+MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/powercap.h b/include/linux/powercap.h
new file mode 100644
index 000000000000..4e250417ee30
--- /dev/null
+++ b/include/linux/powercap.h
@@ -0,0 +1,325 @@
+/*
+ * powercap.h: Data types and headers for sysfs power capping interface
+ * Copyright (c) 2013, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.
+ *
+ */
+
+#ifndef __POWERCAP_H__
+#define __POWERCAP_H__
+
+#include <linux/device.h>
+#include <linux/idr.h>
+
+/*
+ * A power cap class device can contain multiple powercap control_types.
+ * Each control_type can have multiple power zones, which can be independently
+ * controlled. Each power zone can have one or more constraints.
+ */
+
+struct powercap_control_type;
+struct powercap_zone;
+struct powercap_zone_constraint;
+
+/**
+ * struct powercap_control_type_ops - Define control type callbacks
+ * @set_enable:		Enable/Disable whole control type.
+ *			Default is enabled. But this callback allows all zones
+ *			to be in disable state and remove any applied power
+ *			limits. If disabled power zone can only be monitored
+ *			not controlled.
+ * @get_enable:		get Enable/Disable status.
+ * @release:		Callback to inform that last reference to this
+ *			control type is closed. So it is safe to free data
+ *			structure associated with this control type.
+ *			This callback is mandatory if the client own memory
+ *			for the control type.
+ *
+ * This structure defines control type callbacks to be implemented by client
+ * drivers
+ */
+struct powercap_control_type_ops {
+	int (*set_enable) (struct powercap_control_type *, bool mode);
+	int (*get_enable) (struct powercap_control_type *, bool *mode);
+	int (*release) (struct powercap_control_type *);
+};
+
+/**
+ * struct powercap_control_type- Defines a powercap control_type
+ * @name:		name of control_type
+ * @dev:		device for this control_type
+ * @idr:		idr to have unique id for its child
+ * @root_node:		Root holding power zones for this control_type
+ * @ops:		Pointer to callback struct
+ * @node_lock:		mutex for control type
+ * @allocated:		This is possible that client owns the memory
+ *			used by this structure. In this case
+ *			this flag is set to false by framework to
+ *			prevent deallocation during release process.
+ *			Otherwise this flag is set to true.
+ * @ctrl_inst:		link to the control_type list
+ *
+ * Defines powercap control_type. This acts as a container for power
+ * zones, which use same method to control power. E.g. RAPL, RAPL-PCI etc.
+ * All fields are private and should not be used by client drivers.
+ */
+struct powercap_control_type {
+	struct device dev;
+	struct idr idr;
+	int nr_zones;
+	const struct powercap_control_type_ops *ops;
+	struct mutex lock;
+	bool allocated;
+	struct list_head node;
+};
+
+/**
+ * struct powercap_zone_ops - Define power zone callbacks
+ * @get_max_energy_range_uj:	Get maximum range of energy counter in
+ *				micro-joules.
+ * @get_energy_uj:		Get current energy counter in micro-joules.
+ * @reset_energy_uj:		Reset micro-joules energy counter.
+ * @get_max_power_range_uw:	Get maximum range of power counter in
+ *				micro-watts.
+ * @get_power_uw:		Get current power counter in micro-watts.
+ * @set_enable:			Enable/Disable power zone controls.
+ *				Default is enabled.
+ * @get_enable:			get Enable/Disable status.
+ * @release:			Callback to inform that last reference to this
+ *				control type is closed. So it is safe to free
+ *				data structure associated with this
+ *				control type. Mandatory, if client driver owns
+ *				the power_zone memory.
+ *
+ * This structure defines zone callbacks to be implemented by client drivers.
+ * Client drives can define both energy and power related callbacks. But at
+ * the least one type (either power or energy) is mandatory. Client drivers
+ * should handle mutual exclusion, if required in callbacks.
+ */
+struct powercap_zone_ops {
+	int (*get_max_energy_range_uj) (struct powercap_zone *, u64 *);
+	int (*get_energy_uj) (struct powercap_zone *, u64 *);
+	int (*reset_energy_uj) (struct powercap_zone *);
+	int (*get_max_power_range_uw) (struct powercap_zone *, u64 *);
+	int (*get_power_uw) (struct powercap_zone *, u64 *);
+	int (*set_enable) (struct powercap_zone *, bool mode);
+	int (*get_enable) (struct powercap_zone *, bool *mode);
+	int (*release) (struct powercap_zone *);
+};
+
+#define	POWERCAP_ZONE_MAX_ATTRS		6
+#define	POWERCAP_CONSTRAINTS_ATTRS	8
+#define MAX_CONSTRAINTS_PER_ZONE	10
+/**
+ * struct powercap_zone- Defines instance of a power cap zone
+ * @id:			Unique id
+ * @name:		Power zone name.
+ * @control_type_inst:	Control type instance for this zone.
+ * @ops:		Pointer to the zone operation structure.
+ * @dev:		Instance of a device.
+ * @const_id_cnt:	Number of constraint defined.
+ * @idr:		Instance to an idr entry for children zones.
+ * @parent_idr:		To remove reference from the parent idr.
+ * @private_data:	Private data pointer if any for this zone.
+ * @zone_dev_attrs:	Attributes associated with this device.
+ * @zone_attr_count:	Attribute count.
+ * @dev_zone_attr_group: Attribute group for attributes.
+ * @dev_attr_groups:	Attribute group store to register with device.
+ * @allocated:		This is possible that client owns the memory
+ *			used by this structure. In this case
+ *			this flag is set to false by framework to
+ *			prevent deallocation during release process.
+ *			Otherwise this flag is set to true.
+ * @constraint_ptr:	List of constraints for this zone.
+ *
+ * This defines a power zone instance. The fields of this structure are
+ * private, and should not be used by client drivers.
+ */
+struct powercap_zone {
+	int id;
+	char *name;
+	void *control_type_inst;
+	const struct powercap_zone_ops *ops;
+	struct device dev;
+	int const_id_cnt;
+	struct idr idr;
+	struct idr *parent_idr;
+	void *private_data;
+	struct attribute **zone_dev_attrs;
+	int zone_attr_count;
+	struct attribute_group dev_zone_attr_group;
+	const struct attribute_group *dev_attr_groups[2]; /* 1 group + NULL */
+	bool allocated;
+	struct powercap_zone_constraint *constraints;
+};
+
+/**
+ * struct powercap_zone_constraint_ops - Define constraint callbacks
+ * @set_power_limit_uw:		Set power limit in micro-watts.
+ * @get_power_limit_uw:		Get power limit in micro-watts.
+ * @set_time_window_us:		Set time window in micro-seconds.
+ * @get_time_window_us:		Get time window in micro-seconds.
+ * @get_max_power_uw:		Get max power allowed in micro-watts.
+ * @get_min_power_uw:		Get min power allowed in micro-watts.
+ * @get_max_time_window_us:	Get max time window allowed in micro-seconds.
+ * @get_min_time_window_us:	Get min time window allowed in micro-seconds.
+ * @get_name:			Get the name of constraint
+ *
+ * This structure is used to define the constraint callbacks for the client
+ * drivers. The following callbacks are mandatory and can't be NULL:
+ *  set_power_limit_uw
+ *  get_power_limit_uw
+ *  set_time_window_us
+ *  get_time_window_us
+ *  get_name
+ *  Client drivers should handle mutual exclusion, if required in callbacks.
+ */
+struct powercap_zone_constraint_ops {
+	int (*set_power_limit_uw) (struct powercap_zone *, int, u64);
+	int (*get_power_limit_uw) (struct powercap_zone *, int, u64 *);
+	int (*set_time_window_us) (struct powercap_zone *, int, u64);
+	int (*get_time_window_us) (struct powercap_zone *, int, u64 *);
+	int (*get_max_power_uw) (struct powercap_zone *, int, u64 *);
+	int (*get_min_power_uw) (struct powercap_zone *, int, u64 *);
+	int (*get_max_time_window_us) (struct powercap_zone *, int, u64 *);
+	int (*get_min_time_window_us) (struct powercap_zone *, int, u64 *);
+	const char *(*get_name) (struct powercap_zone *, int);
+};
+
+/**
+ * struct powercap_zone_constraint- Defines instance of a constraint
+ * @id:			Instance Id of this constraint.
+ * @power_zone:		Pointer to the power zone for this constraint.
+ * @ops:		Pointer to the constraint callbacks.
+ *
+ * This defines a constraint instance.
+ */
+struct powercap_zone_constraint {
+	int id;
+	struct powercap_zone *power_zone;
+	struct powercap_zone_constraint_ops *ops;
+};
+
+
+/* For clients to get their device pointer, may be used for dev_dbgs */
+#define POWERCAP_GET_DEV(power_zone)	(&power_zone->dev)
+
+/**
+* powercap_set_zone_data() - Set private data for a zone
+* @power_zone:	A pointer to the valid zone instance.
+* @pdata:	A pointer to the user private data.
+*
+* Allows client drivers to associate some private data to zone instance.
+*/
+static inline void powercap_set_zone_data(struct powercap_zone *power_zone,
+						void *pdata)
+{
+	if (power_zone)
+		power_zone->private_data = pdata;
+}
+
+/**
+* powercap_get_zone_data() - Get private data for a zone
+* @power_zone:	A pointer to the valid zone instance.
+*
+* Allows client drivers to get private data associate with a zone,
+* using call to powercap_set_zone_data.
+*/
+static inline void *powercap_get_zone_data(struct powercap_zone *power_zone)
+{
+	if (power_zone)
+		return power_zone->private_data;
+	return NULL;
+}
+
+/**
+* powercap_register_control_type() - Register a control_type with framework
+* @control_type:	Pointer to client allocated memory for the control type
+*			structure storage. If this is NULL, powercap framework
+*			will allocate memory and own it.
+*			Advantage of this parameter is that client can embed
+*			this data in its data structures and allocate in a
+*			single call, preventing multiple allocations.
+* @control_type_name:	The Name of this control_type, which will be shown
+*			in the sysfs Interface.
+* @ops:			Callbacks for control type. This parameter is optional.
+*
+* Used to create a control_type with the power capping class. Here control_type
+* can represent a type of technology, which can control a range of power zones.
+* For example a control_type can be RAPL (Running Average Power Limit)
+* Intel® 64 and IA-32 Processor Architectures. The name can be any string
+* which must be unique, otherwise this function returns NULL.
+* A pointer to the control_type instance is returned on success.
+*/
+struct powercap_control_type *powercap_register_control_type(
+				struct powercap_control_type *control_type,
+				const char *name,
+				const struct powercap_control_type_ops *ops);
+
+/**
+* powercap_unregister_control_type() - Unregister a control_type from framework
+* @instance:	A pointer to the valid control_type instance.
+*
+* Used to unregister a control_type with the power capping class.
+* All power zones registered under this control type have to be unregistered
+* before calling this function, or it will fail with an error code.
+*/
+int powercap_unregister_control_type(struct powercap_control_type *instance);
+
+/* Zone register/unregister API */
+
+/**
+* powercap_register_zone() - Register a power zone
+* @power_zone:	Pointer to client allocated memory for the power zone structure
+*		storage. If this is NULL, powercap framework will allocate
+*		memory and own it. Advantage of this parameter is that client
+*		can embed this data in its data structures and allocate in a
+*		single call, preventing multiple allocations.
+* @control_type: A control_type instance under which this zone operates.
+* @name:	A name for this zone.
+* @parent:	A pointer to the parent power zone instance if any or NULL
+* @ops:		Pointer to zone operation callback structure.
+* @no_constraints: Number of constraints for this zone
+* @const_ops:	Pointer to constraint callback structure
+*
+* Register a power zone under a given control type. A power zone must register
+* a pointer to a structure representing zone callbacks.
+* A power zone can be located under a parent power zone, in which case @parent
+* should point to it.  Otherwise, if @parent is NULL, the new power zone will
+* be located directly under the given control type
+* For each power zone there may be a number of constraints that appear in the
+* sysfs under that zone as attributes with unique numeric IDs.
+* Returns pointer to the power_zone on success.
+*/
+struct powercap_zone *powercap_register_zone(
+			struct powercap_zone *power_zone,
+			struct powercap_control_type *control_type,
+			const char *name,
+			struct powercap_zone *parent,
+			const struct powercap_zone_ops *ops,
+			int nr_constraints,
+			struct powercap_zone_constraint_ops *const_ops);
+
+/**
+* powercap_unregister_zone() - Unregister a zone device
+* @control_type:	A pointer to the valid instance of a control_type.
+* @power_zone:	A pointer to the valid zone instance for a control_type
+*
+* Used to unregister a zone device for a control_type.  Caller should
+* make sure that children for this zone are unregistered first.
+*/
+int powercap_unregister_zone(struct powercap_control_type *control_type,
+				struct powercap_zone *power_zone);
+
+#endif
-- 
cgit 


From 12cc4b3827f8cc5973f86330ccc9d9656a31bfa8 Mon Sep 17 00:00:00 2001
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: Fri, 11 Oct 2013 16:54:57 -0700
Subject: PowerCap: Add to drivers Kconfig and Makefile

Added changes to Makefile and Kconfig to include in driver build.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/Kconfig  | 2 ++
 drivers/Makefile | 1 +
 2 files changed, 3 insertions(+)

diff --git a/drivers/Kconfig b/drivers/Kconfig
index aa43b911ccef..969e9871785c 100644
--- a/drivers/Kconfig
+++ b/drivers/Kconfig
@@ -166,4 +166,6 @@ source "drivers/reset/Kconfig"
 
 source "drivers/fmc/Kconfig"
 
+source "drivers/powercap/Kconfig"
+
 endmenu
diff --git a/drivers/Makefile b/drivers/Makefile
index ab93de8297f1..34c1d554f69b 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -152,3 +152,4 @@ obj-$(CONFIG_VME_BUS)		+= vme/
 obj-$(CONFIG_IPACK_BUS)		+= ipack/
 obj-$(CONFIG_NTB)		+= ntb/
 obj-$(CONFIG_FMC)		+= fmc/
+obj-$(CONFIG_POWERCAP)		+= powercap/
-- 
cgit 


From 1a6b991a9875a4c4811c7baf4058fa17aa1a9d9b Mon Sep 17 00:00:00 2001
From: Jacob Pan <jacob.jun.pan@linux.intel.com>
Date: Fri, 11 Oct 2013 16:54:58 -0700
Subject: x86 / msr: add 64bit _on_cpu access functions

Having 64-bit MSR access methods on given CPU can avoid shifting and
simplify MSR content manipulation. We already have other combinations
of rdmsrl_xxx and wrmsrl_xxx but missing the _on_cpu version.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Reviewed-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/x86/include/asm/msr.h | 22 ++++++++++++++++
 arch/x86/lib/msr-smp.c     | 62 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 84 insertions(+)

diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h
index cb7502852acb..e139b13f2a33 100644
--- a/arch/x86/include/asm/msr.h
+++ b/arch/x86/include/asm/msr.h
@@ -218,10 +218,14 @@ void msrs_free(struct msr *msrs);
 #ifdef CONFIG_SMP
 int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
 int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h);
+int rdmsrl_on_cpu(unsigned int cpu, u32 msr_no, u64 *q);
+int wrmsrl_on_cpu(unsigned int cpu, u32 msr_no, u64 q);
 void rdmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs);
 void wrmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr *msrs);
 int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h);
 int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h);
+int rdmsrl_safe_on_cpu(unsigned int cpu, u32 msr_no, u64 *q);
+int wrmsrl_safe_on_cpu(unsigned int cpu, u32 msr_no, u64 q);
 int rdmsr_safe_regs_on_cpu(unsigned int cpu, u32 regs[8]);
 int wrmsr_safe_regs_on_cpu(unsigned int cpu, u32 regs[8]);
 #else  /*  CONFIG_SMP  */
@@ -235,6 +239,16 @@ static inline int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
 	wrmsr(msr_no, l, h);
 	return 0;
 }
+static inline int rdmsrl_on_cpu(unsigned int cpu, u32 msr_no, u64 *q)
+{
+	rdmsrl(msr_no, *q);
+	return 0;
+}
+static inline int wrmsrl_on_cpu(unsigned int cpu, u32 msr_no, u64 q)
+{
+	wrmsrl(msr_no, q);
+	return 0;
+}
 static inline void rdmsr_on_cpus(const struct cpumask *m, u32 msr_no,
 				struct msr *msrs)
 {
@@ -254,6 +268,14 @@ static inline int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
 {
 	return wrmsr_safe(msr_no, l, h);
 }
+static inline int rdmsrl_safe_on_cpu(unsigned int cpu, u32 msr_no, u64 *q)
+{
+	return rdmsrl_safe(msr_no, q);
+}
+static inline int wrmsrl_safe_on_cpu(unsigned int cpu, u32 msr_no, u64 q)
+{
+	return wrmsrl_safe(msr_no, q);
+}
 static inline int rdmsr_safe_regs_on_cpu(unsigned int cpu, u32 regs[8])
 {
 	return rdmsr_safe_regs(regs);
diff --git a/arch/x86/lib/msr-smp.c b/arch/x86/lib/msr-smp.c
index a6b1b86d2253..518532e6a3fa 100644
--- a/arch/x86/lib/msr-smp.c
+++ b/arch/x86/lib/msr-smp.c
@@ -47,6 +47,21 @@ int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h)
 }
 EXPORT_SYMBOL(rdmsr_on_cpu);
 
+int rdmsrl_on_cpu(unsigned int cpu, u32 msr_no, u64 *q)
+{
+	int err;
+	struct msr_info rv;
+
+	memset(&rv, 0, sizeof(rv));
+
+	rv.msr_no = msr_no;
+	err = smp_call_function_single(cpu, __rdmsr_on_cpu, &rv, 1);
+	*q = rv.reg.q;
+
+	return err;
+}
+EXPORT_SYMBOL(rdmsrl_on_cpu);
+
 int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
 {
 	int err;
@@ -63,6 +78,22 @@ int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
 }
 EXPORT_SYMBOL(wrmsr_on_cpu);
 
+int wrmsrl_on_cpu(unsigned int cpu, u32 msr_no, u64 q)
+{
+	int err;
+	struct msr_info rv;
+
+	memset(&rv, 0, sizeof(rv));
+
+	rv.msr_no = msr_no;
+	rv.reg.q = q;
+
+	err = smp_call_function_single(cpu, __wrmsr_on_cpu, &rv, 1);
+
+	return err;
+}
+EXPORT_SYMBOL(wrmsrl_on_cpu);
+
 static void __rwmsr_on_cpus(const struct cpumask *mask, u32 msr_no,
 			    struct msr *msrs,
 			    void (*msr_func) (void *info))
@@ -159,6 +190,37 @@ int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h)
 }
 EXPORT_SYMBOL(wrmsr_safe_on_cpu);
 
+int wrmsrl_safe_on_cpu(unsigned int cpu, u32 msr_no, u64 q)
+{
+	int err;
+	struct msr_info rv;
+
+	memset(&rv, 0, sizeof(rv));
+
+	rv.msr_no = msr_no;
+	rv.reg.q = q;
+
+	err = smp_call_function_single(cpu, __wrmsr_safe_on_cpu, &rv, 1);
+
+	return err ? err : rv.err;
+}
+EXPORT_SYMBOL(wrmsrl_safe_on_cpu);
+
+int rdmsrl_safe_on_cpu(unsigned int cpu, u32 msr_no, u64 *q)
+{
+	int err;
+	struct msr_info rv;
+
+	memset(&rv, 0, sizeof(rv));
+
+	rv.msr_no = msr_no;
+	err = smp_call_function_single(cpu, __rdmsr_safe_on_cpu, &rv, 1);
+	*q = rv.reg.q;
+
+	return err ? err : rv.err;
+}
+EXPORT_SYMBOL(rdmsrl_safe_on_cpu);
+
 /*
  * These variants are significantly slower, but allows control over
  * the entire 32-bit GPR set.
-- 
cgit 


From bfd1ff6375c82930bfb3b401eee2c96720fa8e84 Mon Sep 17 00:00:00 2001
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: Fri, 11 Oct 2013 16:54:59 -0700
Subject: bitops: Introduce BIT_ULL

Adding BIT(x) equivalent for unsigned long long type, BIT_ULL(x). Also
added BIT_ULL_MASK and BIT_ULL_WORD.

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/linux/bitops.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index a3b6b82108b9..5a1c8b71ccd8 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -4,8 +4,11 @@
 
 #ifdef	__KERNEL__
 #define BIT(nr)			(1UL << (nr))
+#define BIT_ULL(nr)		(1ULL << (nr))
 #define BIT_MASK(nr)		(1UL << ((nr) % BITS_PER_LONG))
 #define BIT_WORD(nr)		((nr) / BITS_PER_LONG)
+#define BIT_ULL_MASK(nr)	(1ULL << ((nr) % BITS_PER_LONG_LONG))
+#define BIT_ULL_WORD(nr)	((nr) / BITS_PER_LONG_LONG)
 #define BITS_PER_BYTE		8
 #define BITS_TO_LONGS(nr)	DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
 #endif
-- 
cgit 


From fb2b2844743bc3d84ce1033167210e5fe3963455 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Wed, 16 Oct 2013 09:12:53 +0200
Subject: tcm_loop: Implement transport offline

Add attribute 'transport_status' to simulate link failure.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/loopback/tcm_loop.c | 53 +++++++++++++++++++++++++++++++++++++-
 drivers/target/loopback/tcm_loop.h |  4 +++
 2 files changed, 56 insertions(+), 1 deletion(-)

diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 21b49f351723..a00ad27940b7 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -178,7 +178,10 @@ static void tcm_loop_submission_work(struct work_struct *work)
 		set_host_byte(sc, DID_NO_CONNECT);
 		goto out_done;
 	}
-
+	if (tl_tpg->tl_transport_status == TCM_TRANSPORT_OFFLINE) {
+		set_host_byte(sc, DID_TRANSPORT_DISRUPTED);
+		goto out_done;
+	}
 	tl_nexus = tl_hba->tl_nexus;
 	if (!tl_nexus) {
 		scmd_printk(KERN_ERR, sc, "TCM_Loop I_T Nexus"
@@ -1064,8 +1067,56 @@ check_newline:
 
 TF_TPG_BASE_ATTR(tcm_loop, nexus, S_IRUGO | S_IWUSR);
 
+static ssize_t tcm_loop_tpg_show_transport_status(
+	struct se_portal_group *se_tpg,
+	char *page)
+{
+	struct tcm_loop_tpg *tl_tpg = container_of(se_tpg,
+			struct tcm_loop_tpg, tl_se_tpg);
+	const char *status = NULL;
+	ssize_t ret = -EINVAL;
+
+	switch (tl_tpg->tl_transport_status) {
+	case TCM_TRANSPORT_ONLINE:
+		status = "online";
+		break;
+	case TCM_TRANSPORT_OFFLINE:
+		status = "offline";
+		break;
+	default:
+		break;
+	}
+
+	if (status)
+		ret = snprintf(page, PAGE_SIZE, "%s\n", status);
+
+	return ret;
+}
+
+static ssize_t tcm_loop_tpg_store_transport_status(
+	struct se_portal_group *se_tpg,
+	const char *page,
+	size_t count)
+{
+	struct tcm_loop_tpg *tl_tpg = container_of(se_tpg,
+			struct tcm_loop_tpg, tl_se_tpg);
+
+	if (!strncmp(page, "online", 6)) {
+		tl_tpg->tl_transport_status = TCM_TRANSPORT_ONLINE;
+		return count;
+	}
+	if (!strncmp(page, "offline", 7)) {
+		tl_tpg->tl_transport_status = TCM_TRANSPORT_OFFLINE;
+		return count;
+	}
+	return -EINVAL;
+}
+
+TF_TPG_BASE_ATTR(tcm_loop, transport_status, S_IRUGO | S_IWUSR);
+
 static struct configfs_attribute *tcm_loop_tpg_attrs[] = {
 	&tcm_loop_tpg_nexus.attr,
+	&tcm_loop_tpg_transport_status.attr,
 	NULL,
 };
 
diff --git a/drivers/target/loopback/tcm_loop.h b/drivers/target/loopback/tcm_loop.h
index dd7a84ee78e1..56528f7dafae 100644
--- a/drivers/target/loopback/tcm_loop.h
+++ b/drivers/target/loopback/tcm_loop.h
@@ -40,8 +40,12 @@ struct tcm_loop_nacl {
 	struct se_node_acl se_node_acl;
 };
 
+#define TCM_TRANSPORT_ONLINE 0
+#define TCM_TRANSPORT_OFFLINE 1
+
 struct tcm_loop_tpg {
 	unsigned short tl_tpgt;
+	unsigned short tl_transport_status;
 	atomic_t tl_tpg_port_count;
 	struct se_portal_group tl_se_tpg;
 	struct tcm_loop_hba *tl_hba;
-- 
cgit 


From a314d7003ccd4f4886d1280ff4f6c00217fc9ae3 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Wed, 16 Oct 2013 09:12:54 +0200
Subject: tcm_loop: separate out tcm_loop_issue_tmr

No functional change.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/loopback/tcm_loop.c | 83 +++++++++++++++++++++++---------------
 include/target/target_core_base.h  |  1 +
 2 files changed, 51 insertions(+), 33 deletions(-)

diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index a00ad27940b7..783675f7cdab 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -245,41 +245,21 @@ static int tcm_loop_queuecommand(struct Scsi_Host *sh, struct scsi_cmnd *sc)
  * Called from SCSI EH process context to issue a LUN_RESET TMR
  * to struct scsi_device
  */
-static int tcm_loop_device_reset(struct scsi_cmnd *sc)
+static int tcm_loop_issue_tmr(struct tcm_loop_tpg *tl_tpg,
+			      struct tcm_loop_nexus *tl_nexus,
+			      int lun, enum tcm_tmreq_table tmr)
 {
 	struct se_cmd *se_cmd = NULL;
-	struct se_portal_group *se_tpg;
 	struct se_session *se_sess;
+	struct se_portal_group *se_tpg;
 	struct tcm_loop_cmd *tl_cmd = NULL;
-	struct tcm_loop_hba *tl_hba;
-	struct tcm_loop_nexus *tl_nexus;
 	struct tcm_loop_tmr *tl_tmr = NULL;
-	struct tcm_loop_tpg *tl_tpg;
-	int ret = FAILED, rc;
-	/*
-	 * Locate the tcm_loop_hba_t pointer
-	 */
-	tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host);
-	/*
-	 * Locate the tl_nexus and se_sess pointers
-	 */
-	tl_nexus = tl_hba->tl_nexus;
-	if (!tl_nexus) {
-		pr_err("Unable to perform device reset without"
-				" active I_T Nexus\n");
-		return FAILED;
-	}
-	se_sess = tl_nexus->se_sess;
-	/*
-	 * Locate the tl_tpg and se_tpg pointers from TargetID in sc->device->id
-	 */
-	tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id];
-	se_tpg = &tl_tpg->tl_se_tpg;
+	int ret = TMR_FUNCTION_FAILED, rc;
 
 	tl_cmd = kmem_cache_zalloc(tcm_loop_cmd_cache, GFP_KERNEL);
 	if (!tl_cmd) {
 		pr_err("Unable to allocate memory for tl_cmd\n");
-		return FAILED;
+		return ret;
 	}
 
 	tl_tmr = kzalloc(sizeof(struct tcm_loop_tmr), GFP_KERNEL);
@@ -290,6 +270,8 @@ static int tcm_loop_device_reset(struct scsi_cmnd *sc)
 	init_waitqueue_head(&tl_tmr->tl_tmr_wait);
 
 	se_cmd = &tl_cmd->tl_se_cmd;
+	se_tpg = &tl_tpg->tl_se_tpg;
+	se_sess = tl_nexus->se_sess;
 	/*
 	 * Initialize struct se_cmd descriptor from target_core_mod infrastructure
 	 */
@@ -297,17 +279,20 @@ static int tcm_loop_device_reset(struct scsi_cmnd *sc)
 				DMA_NONE, MSG_SIMPLE_TAG,
 				&tl_cmd->tl_sense_buf[0]);
 
-	rc = core_tmr_alloc_req(se_cmd, tl_tmr, TMR_LUN_RESET, GFP_KERNEL);
+	rc = core_tmr_alloc_req(se_cmd, tl_tmr, tmr, GFP_KERNEL);
 	if (rc < 0)
 		goto release;
+
 	/*
-	 * Locate the underlying TCM struct se_lun from sc->device->lun
+	 * Locate the underlying TCM struct se_lun
 	 */
-	if (transport_lookup_tmr_lun(se_cmd, sc->device->lun) < 0)
+	if (transport_lookup_tmr_lun(se_cmd, lun) < 0) {
+		ret = TMR_LUN_DOES_NOT_EXIST;
 		goto release;
+	}
 	/*
-	 * Queue the TMR to TCM Core and sleep waiting for tcm_loop_queue_tm_rsp()
-	 * to wake us up.
+	 * Queue the TMR to TCM Core and sleep waiting for
+	 * tcm_loop_queue_tm_rsp() to wake us up.
 	 */
 	transport_generic_handle_tmr(se_cmd);
 	wait_event(tl_tmr->tl_tmr_wait, atomic_read(&tl_tmr->tmr_complete));
@@ -315,8 +300,7 @@ static int tcm_loop_device_reset(struct scsi_cmnd *sc)
 	 * The TMR LUN_RESET has completed, check the response status and
 	 * then release allocations.
 	 */
-	ret = (se_cmd->se_tmr_req->response == TMR_FUNCTION_COMPLETE) ?
-		SUCCESS : FAILED;
+	ret = se_cmd->se_tmr_req->response;
 release:
 	if (se_cmd)
 		transport_generic_free_cmd(se_cmd, 1);
@@ -326,6 +310,39 @@ release:
 	return ret;
 }
 
+/*
+ * Called from SCSI EH process context to issue a LUN_RESET TMR
+ * to struct scsi_device
+ */
+static int tcm_loop_device_reset(struct scsi_cmnd *sc)
+{
+	struct tcm_loop_hba *tl_hba;
+	struct tcm_loop_nexus *tl_nexus;
+	struct tcm_loop_tpg *tl_tpg;
+	int ret = FAILED;
+
+	/*
+	 * Locate the tcm_loop_hba_t pointer
+	 */
+	tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host);
+	/*
+	 * Locate the tl_nexus and se_sess pointers
+	 */
+	tl_nexus = tl_hba->tl_nexus;
+	if (!tl_nexus) {
+		pr_err("Unable to perform device reset without"
+				" active I_T Nexus\n");
+		return FAILED;
+	}
+	/*
+	 * Locate the tl_tpg pointer from TargetID in sc->device->id
+	 */
+	tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id];
+	ret = tcm_loop_issue_tmr(tl_tpg, tl_nexus,
+				 sc->device->lun, TMR_LUN_RESET);
+	return (ret == TMR_FUNCTION_COMPLETE) ? SUCCESS : FAILED;
+}
+
 static int tcm_loop_slave_alloc(struct scsi_device *sd)
 {
 	set_bit(QUEUE_FLAG_BIDI, &sd->request_queue->queue_flags);
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 5bdb8b7d2a69..22e752c4406d 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -227,6 +227,7 @@ enum tcm_tmreq_table {
 
 /* fabric independent task management response values */
 enum tcm_tmrsp_table {
+	TMR_FUNCTION_FAILED		= 0,
 	TMR_FUNCTION_COMPLETE		= 1,
 	TMR_TASK_DOES_NOT_EXIST		= 2,
 	TMR_LUN_DOES_NOT_EXIST		= 3,
-- 
cgit 


From 969871cdc2d0f5a81d6733450b5334d14fce2b75 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Wed, 16 Oct 2013 09:12:55 +0200
Subject: tcm_loop: TCQ and command abort support

Implement TCQ support, which enables us to do proper command
abort, too.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/loopback/tcm_loop.c | 71 +++++++++++++++++++++++++++++++++++---
 drivers/target/loopback/tcm_loop.h |  2 ++
 2 files changed, 69 insertions(+), 4 deletions(-)

diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 783675f7cdab..04811caac487 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -135,6 +135,21 @@ static int tcm_loop_change_queue_depth(
 	return sdev->queue_depth;
 }
 
+static int tcm_loop_change_queue_type(struct scsi_device *sdev, int tag)
+{
+	if (sdev->tagged_supported) {
+		scsi_set_tag_type(sdev, tag);
+
+		if (tag)
+			scsi_activate_tcq(sdev, sdev->queue_depth);
+		else
+			scsi_deactivate_tcq(sdev, sdev->queue_depth);
+	} else
+		tag = 0;
+
+	return tag;
+}
+
 /*
  * Locate the SAM Task Attr from struct scsi_cmnd *
  */
@@ -236,6 +251,7 @@ static int tcm_loop_queuecommand(struct Scsi_Host *sh, struct scsi_cmnd *sc)
 	}
 
 	tl_cmd->sc = sc;
+	tl_cmd->sc_cmd_tag = sc->tag;
 	INIT_WORK(&tl_cmd->work, tcm_loop_submission_work);
 	queue_work(tcm_loop_workqueue, &tl_cmd->work);
 	return 0;
@@ -247,7 +263,7 @@ static int tcm_loop_queuecommand(struct Scsi_Host *sh, struct scsi_cmnd *sc)
  */
 static int tcm_loop_issue_tmr(struct tcm_loop_tpg *tl_tpg,
 			      struct tcm_loop_nexus *tl_nexus,
-			      int lun, enum tcm_tmreq_table tmr)
+			      int lun, int task, enum tcm_tmreq_table tmr)
 {
 	struct se_cmd *se_cmd = NULL;
 	struct se_session *se_sess;
@@ -283,6 +299,9 @@ static int tcm_loop_issue_tmr(struct tcm_loop_tpg *tl_tpg,
 	if (rc < 0)
 		goto release;
 
+	if (tmr == TMR_ABORT_TASK)
+		se_cmd->se_tmr_req->ref_task_tag = task;
+
 	/*
 	 * Locate the underlying TCM struct se_lun
 	 */
@@ -310,6 +329,36 @@ release:
 	return ret;
 }
 
+static int tcm_loop_abort_task(struct scsi_cmnd *sc)
+{
+	struct tcm_loop_hba *tl_hba;
+	struct tcm_loop_nexus *tl_nexus;
+	struct tcm_loop_tpg *tl_tpg;
+	int ret = FAILED;
+
+	/*
+	 * Locate the tcm_loop_hba_t pointer
+	 */
+	tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host);
+	/*
+	 * Locate the tl_nexus and se_sess pointers
+	 */
+	tl_nexus = tl_hba->tl_nexus;
+	if (!tl_nexus) {
+		pr_err("Unable to perform device reset without"
+				" active I_T Nexus\n");
+		return FAILED;
+	}
+
+	/*
+	 * Locate the tl_tpg pointer from TargetID in sc->device->id
+	 */
+	tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id];
+	ret = tcm_loop_issue_tmr(tl_tpg, tl_nexus, sc->device->lun,
+				 sc->tag, TMR_ABORT_TASK);
+	return (ret == TMR_FUNCTION_COMPLETE) ? SUCCESS : FAILED;
+}
+
 /*
  * Called from SCSI EH process context to issue a LUN_RESET TMR
  * to struct scsi_device
@@ -338,8 +387,8 @@ static int tcm_loop_device_reset(struct scsi_cmnd *sc)
 	 * Locate the tl_tpg pointer from TargetID in sc->device->id
 	 */
 	tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id];
-	ret = tcm_loop_issue_tmr(tl_tpg, tl_nexus,
-				 sc->device->lun, TMR_LUN_RESET);
+	ret = tcm_loop_issue_tmr(tl_tpg, tl_nexus, sc->device->lun,
+				 0, TMR_LUN_RESET);
 	return (ret == TMR_FUNCTION_COMPLETE) ? SUCCESS : FAILED;
 }
 
@@ -351,6 +400,15 @@ static int tcm_loop_slave_alloc(struct scsi_device *sd)
 
 static int tcm_loop_slave_configure(struct scsi_device *sd)
 {
+	if (sd->tagged_supported) {
+		scsi_activate_tcq(sd, sd->queue_depth);
+		scsi_adjust_queue_depth(sd, MSG_SIMPLE_TAG,
+					sd->host->cmd_per_lun);
+	} else {
+		scsi_adjust_queue_depth(sd, 0,
+					sd->host->cmd_per_lun);
+	}
+
 	return 0;
 }
 
@@ -360,6 +418,8 @@ static struct scsi_host_template tcm_loop_driver_template = {
 	.name			= "TCM_Loopback",
 	.queuecommand		= tcm_loop_queuecommand,
 	.change_queue_depth	= tcm_loop_change_queue_depth,
+	.change_queue_type	= tcm_loop_change_queue_type,
+	.eh_abort_handler = tcm_loop_abort_task,
 	.eh_device_reset_handler = tcm_loop_device_reset,
 	.can_queue		= 1024,
 	.this_id		= -1,
@@ -719,7 +779,10 @@ static void tcm_loop_set_default_node_attributes(struct se_node_acl *se_acl)
 
 static u32 tcm_loop_get_task_tag(struct se_cmd *se_cmd)
 {
-	return 1;
+	struct tcm_loop_cmd *tl_cmd = container_of(se_cmd,
+			struct tcm_loop_cmd, tl_se_cmd);
+
+	return tl_cmd->sc_cmd_tag;
 }
 
 static int tcm_loop_get_cmd_state(struct se_cmd *se_cmd)
diff --git a/drivers/target/loopback/tcm_loop.h b/drivers/target/loopback/tcm_loop.h
index 56528f7dafae..54c59d0b6608 100644
--- a/drivers/target/loopback/tcm_loop.h
+++ b/drivers/target/loopback/tcm_loop.h
@@ -10,6 +10,8 @@
 struct tcm_loop_cmd {
 	/* State of Linux/SCSI CDB+Data descriptor */
 	u32 sc_cmd_state;
+	/* Tagged command queueing */
+	u32 sc_cmd_tag;
 	/* Pointer to the CDB+Data descriptor from Linux/SCSI subsystem */
 	struct scsi_cmnd *sc;
 	/* The TCM I/O descriptor that is accessed via container_of() */
-- 
cgit 


From 6bdd326e740fb87a88a49189925ca12a02311c8b Mon Sep 17 00:00:00 2001
From: Manish Badarkhe <badarkhe.manish@gmail.com>
Date: Wed, 9 Oct 2013 23:35:24 +0530
Subject: PM / devfreq: Remove duplicate include of opp.h

Currently, code include opp.h twice. Remove one inclusion
of opp.h

Signed-off-by: Manish Badarkhe <badarkhe.manish@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/devfreq/exynos/exynos5_bus.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/devfreq/exynos/exynos5_bus.c b/drivers/devfreq/exynos/exynos5_bus.c
index 574b16b59be5..93c29f4085bd 100644
--- a/drivers/devfreq/exynos/exynos5_bus.c
+++ b/drivers/devfreq/exynos/exynos5_bus.c
@@ -18,7 +18,6 @@
 #include <linux/opp.h>
 #include <linux/slab.h>
 #include <linux/suspend.h>
-#include <linux/opp.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/platform_device.h>
-- 
cgit 


From 8f4a1fb0d029feef385986f320c7b4c13d9fce40 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Wed, 16 Oct 2013 09:12:56 +0200
Subject: tcm_loop: Implement target reset

Implement target reset by resetting the transport status.

(nab: Remove unused ret in tcm_loop_target_reset)

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/loopback/tcm_loop.c | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/drivers/target/loopback/tcm_loop.c b/drivers/target/loopback/tcm_loop.c
index 04811caac487..1b41e6776152 100644
--- a/drivers/target/loopback/tcm_loop.c
+++ b/drivers/target/loopback/tcm_loop.c
@@ -392,6 +392,31 @@ static int tcm_loop_device_reset(struct scsi_cmnd *sc)
 	return (ret == TMR_FUNCTION_COMPLETE) ? SUCCESS : FAILED;
 }
 
+static int tcm_loop_target_reset(struct scsi_cmnd *sc)
+{
+	struct tcm_loop_hba *tl_hba;
+	struct tcm_loop_tpg *tl_tpg;
+
+	/*
+	 * Locate the tcm_loop_hba_t pointer
+	 */
+	tl_hba = *(struct tcm_loop_hba **)shost_priv(sc->device->host);
+	if (!tl_hba) {
+		pr_err("Unable to perform device reset without"
+				" active I_T Nexus\n");
+		return FAILED;
+	}
+	/*
+	 * Locate the tl_tpg pointer from TargetID in sc->device->id
+	 */
+	tl_tpg = &tl_hba->tl_hba_tpgs[sc->device->id];
+	if (tl_tpg) {
+		tl_tpg->tl_transport_status = TCM_TRANSPORT_ONLINE;
+		return SUCCESS;
+	}
+	return FAILED;
+}
+
 static int tcm_loop_slave_alloc(struct scsi_device *sd)
 {
 	set_bit(QUEUE_FLAG_BIDI, &sd->request_queue->queue_flags);
@@ -421,6 +446,7 @@ static struct scsi_host_template tcm_loop_driver_template = {
 	.change_queue_type	= tcm_loop_change_queue_type,
 	.eh_abort_handler = tcm_loop_abort_task,
 	.eh_device_reset_handler = tcm_loop_device_reset,
+	.eh_target_reset_handler = tcm_loop_target_reset,
 	.can_queue		= 1024,
 	.this_id		= -1,
 	.sg_tablesize		= 256,
-- 
cgit 


From 006454ae779d5d3f6ac518f0903475a5142bef5b Mon Sep 17 00:00:00 2001
From: Manish Badarkhe <badarkhe.manish@gmail.com>
Date: Wed, 9 Oct 2013 20:43:37 +0530
Subject: exynos-cpufreq: fix false return check from "regulator_set_voltage"

Currently, code checks false return value from "regulator_set_voltage"
to show failure message. Modify the code to check proper return
value from "regulator_set_voltage".

Signed-off-by: Manish Badarkhe <badarkhe.manish@gmail.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/exynos-cpufreq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index b96fcc847636..3e4af676f43d 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -135,7 +135,7 @@ post_notify:
 	if ((freqs.new < freqs.old) ||
 	   ((freqs.new > freqs.old) && safe_arm_volt)) {
 		/* down the voltage after frequency change */
-		regulator_set_voltage(arm_regulator, arm_volt,
+		ret = regulator_set_voltage(arm_regulator, arm_volt,
 				arm_volt);
 		if (ret) {
 			pr_err("%s: failed to set cpu voltage to %d\n",
-- 
cgit 


From fd1ac4cf524018198373c5eb90ca0e7968c5bbb8 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Mon, 7 Oct 2013 11:58:20 -0700
Subject: usb: hub_activate kill an 'else'

Remove a few extra lines and make it clear that all implementations
disable the port by sharing the same line of code.

Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/core/hub.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 566ac5531407..3da607490d18 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -1112,16 +1112,13 @@ static void hub_activate(struct usb_hub *hub, enum hub_activation_type type)
 			/*
 			 * USB3 protocol ports will automatically transition
 			 * to Enabled state when detect an USB3.0 device attach.
-			 * Do not disable USB3 protocol ports.
+			 * Do not disable USB3 protocol ports, just pretend
+			 * power was lost
 			 */
-			if (!hub_is_superspeed(hdev)) {
+			portstatus &= ~USB_PORT_STAT_ENABLE;
+			if (!hub_is_superspeed(hdev))
 				usb_clear_port_feature(hdev, port1,
 						   USB_PORT_FEAT_ENABLE);
-				portstatus &= ~USB_PORT_STAT_ENABLE;
-			} else {
-				/* Pretend that power was lost for USB3 devs */
-				portstatus &= ~USB_PORT_STAT_ENABLE;
-			}
 		}
 
 		/* Clear status-change flags; we'll debounce later */
-- 
cgit 


From 4e341818ee9ee8d435977131cc7ce9e89c053fa6 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Mon, 7 Oct 2013 11:58:34 -0700
Subject: usb: xhci: kill a conditional when toggling cycle

Perform an unconditional toggle of the cycle bit with 'xor'.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci-ring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index e57163f952ed..1e2f3f495843 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -178,7 +178,7 @@ static void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring)
 			if (ring->type == TYPE_EVENT &&
 					last_trb_on_last_seg(xhci, ring,
 						ring->deq_seg, ring->dequeue)) {
-				ring->cycle_state = (ring->cycle_state ? 0 : 1);
+				ring->cycle_state ^= 1;
 			}
 			ring->deq_seg = ring->deq_seg->next;
 			ring->dequeue = ring->deq_seg->trbs;
-- 
cgit 


From a2cdc3432c361bb885476d1c625e22b518e0bc07 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 16 Oct 2013 12:25:44 -0700
Subject: usb: xhci: remove the unused ->address field

Only used for debug output, so we don't need to save it.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
---
 drivers/usb/host/xhci.c | 10 ++--------
 drivers/usb/host/xhci.h |  2 --
 2 files changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index d3f6abbda67e..b41c24c58bb9 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -3704,9 +3704,6 @@ disable_slot:
  * the device).
  * We should be protected by the usb_address0_mutex in khubd's hub_port_init, so
  * we should only issue and wait on one address command at the same time.
- *
- * We add one to the device address issued by the hardware because the USB core
- * uses address 1 for the root hubs (even though they're not really devices).
  */
 int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev)
 {
@@ -3851,16 +3848,13 @@ int xhci_address_device(struct usb_hcd *hcd, struct usb_device *udev)
 	slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->out_ctx);
 	trace_xhci_address_ctx(xhci, virt_dev->out_ctx,
 				slot_ctx->dev_info >> 27);
-	/* Use kernel assigned address for devices; store xHC assigned
-	 * address locally. */
-	virt_dev->address = (le32_to_cpu(slot_ctx->dev_state) & DEV_ADDR_MASK)
-		+ 1;
 	/* Zero the input context control for later use */
 	ctrl_ctx->add_flags = 0;
 	ctrl_ctx->drop_flags = 0;
 
 	xhci_dbg_trace(xhci, trace_xhci_dbg_address,
-			"Internal device address = %d", virt_dev->address);
+		       "Internal device address = %d",
+		       le32_to_cpu(slot_ctx->dev_state) & DEV_ADDR_MASK);
 
 	return 0;
 }
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 466081934b68..2c701c60cbf4 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -935,8 +935,6 @@ struct xhci_virt_device {
 	/* Rings saved to ensure old alt settings can be re-instated */
 	struct xhci_ring		**ring_cache;
 	int				num_rings_cached;
-	/* Store xHC assigned device address */
-	int				address;
 #define	XHCI_MAX_RINGS_CACHED	31
 	struct xhci_virt_ep		eps[31];
 	struct completion		cmd_completion;
-- 
cgit 


From fbbc5bfb44a22e7a8ef753a1c8dfb448d7ac8b85 Mon Sep 17 00:00:00 2001
From: Mark Langsdorf <mark.langsdorf@calxeda.com>
Date: Tue, 1 Oct 2013 10:30:24 -0500
Subject: cpufreq: highbank-cpufreq: Enable Midway/ECX-2000

Calxeda's new ECX-2000 part uses the same cpufreq interface as highbank,
so add it to the driver's compatibility list.

This is a minor change that can safely be applied to the 3.10 and 3.11
stable trees.

Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/highbank-cpufreq.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/cpufreq/highbank-cpufreq.c b/drivers/cpufreq/highbank-cpufreq.c
index 794123fcf3e3..bf8902a0866d 100644
--- a/drivers/cpufreq/highbank-cpufreq.c
+++ b/drivers/cpufreq/highbank-cpufreq.c
@@ -66,7 +66,8 @@ static int hb_cpufreq_driver_init(void)
 	struct device_node *np;
 	int ret;
 
-	if (!of_machine_is_compatible("calxeda,highbank"))
+	if ((!of_machine_is_compatible("calxeda,highbank")) &&
+		(!of_machine_is_compatible("calxeda,ecx-2000")))
 		return -ENODEV;
 
 	cpu_dev = get_cpu_device(0);
-- 
cgit 


From 45a428ebbf7d6a4ec77cf02fc706ecd62b261bd9 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Mon, 30 Sep 2013 23:44:31 +0300
Subject: cpufreq: pmac64: speed up frequency switch

Some functions on switch path use msleep() which is inaccurate, and
depends on HZ. With HZ=100 msleep(1) takes actually over ten times longer.
Using usleep_range() we get more accurate sleeps.

I measured the "pfunc_slewing_done" polling to take 300us at max (on
2.3GHz dual-processor Xserve G5), so using 500us sleep there should
be fine.

With the patch, g5_switch_freq() duration drops from ~50ms to ~10ms on
Xserve with HZ=100.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/pmac64-cpufreq.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c
index b977b9aa408e..889c0d553572 100644
--- a/drivers/cpufreq/pmac64-cpufreq.c
+++ b/drivers/cpufreq/pmac64-cpufreq.c
@@ -137,7 +137,7 @@ static void g5_vdnap_switch_volt(int speed_mode)
 		pmf_call_one(pfunc_vdnap0_complete, &args);
 		if (done)
 			break;
-		msleep(1);
+		usleep_range(1000, 1000);
 	}
 	if (done == 0)
 		printk(KERN_WARNING "cpufreq: Timeout in clock slewing !\n");
@@ -236,7 +236,7 @@ static void g5_pfunc_switch_volt(int speed_mode)
 		if (pfunc_cpu1_volt_low)
 			pmf_call_one(pfunc_cpu1_volt_low, NULL);
 	}
-	msleep(10); /* should be faster , to fix */
+	usleep_range(10000, 10000); /* should be faster , to fix */
 }
 
 /*
@@ -281,7 +281,7 @@ static int g5_pfunc_switch_freq(int speed_mode)
 		pmf_call_one(pfunc_slewing_done, &args);
 		if (done)
 			break;
-		msleep(1);
+		usleep_range(500, 500);
 	}
 	if (done == 0)
 		printk(KERN_WARNING "cpufreq: Timeout in clock slewing !\n");
-- 
cgit 


From af671d8b2c2ace771e08566b20774cc08ee53316 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Mon, 30 Sep 2013 23:44:32 +0300
Subject: cpufreq: pmac64: provide cpufreq transition latency for older G5
 models

Currently cpufreq ondemand governor cannot used on older G5 models,
because the transition latency is set to CPUFREQ_ETERNAL. Provide a
value based on a measurement on Xserve G5, which happens to be also the
highest allowed latency.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/pmac64-cpufreq.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c
index 889c0d553572..db9764e83668 100644
--- a/drivers/cpufreq/pmac64-cpufreq.c
+++ b/drivers/cpufreq/pmac64-cpufreq.c
@@ -627,8 +627,10 @@ static int __init g5_pm72_cpufreq_init(struct device_node *cpunode)
 	g5_cpu_freqs[0].frequency = max_freq;
 	g5_cpu_freqs[1].frequency = min_freq;
 
+	/* Based on a measurement on Xserve G5, rounded up. */
+	transition_latency = 10 * NSEC_PER_MSEC;
+
 	/* Set callbacks */
-	transition_latency = CPUFREQ_ETERNAL;
 	g5_switch_volt = g5_pfunc_switch_volt;
 	g5_switch_freq = g5_pfunc_switch_freq;
 	g5_query_freq = g5_pfunc_query_freq;
-- 
cgit 


From 891083622621bfe114ec4d40711a7d3a68fdc6fc Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Mon, 30 Sep 2013 23:44:33 +0300
Subject: cpufreq: pmac64: enable cpufreq on iMac G5 (iSight) model

Enable cpufreq on iMac G5 (iSight) model. Tested with the 2.1 GHz version.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/pmac64-cpufreq.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c
index db9764e83668..5261b92d768b 100644
--- a/drivers/cpufreq/pmac64-cpufreq.c
+++ b/drivers/cpufreq/pmac64-cpufreq.c
@@ -377,7 +377,8 @@ static int __init g5_neo2_cpufreq_init(struct device_node *cpunode)
 	/* Check supported platforms */
 	if (of_machine_is_compatible("PowerMac8,1") ||
 	    of_machine_is_compatible("PowerMac8,2") ||
-	    of_machine_is_compatible("PowerMac9,1"))
+	    of_machine_is_compatible("PowerMac9,1") ||
+	    of_machine_is_compatible("PowerMac12,1"))
 		use_volts_smu = 1;
 	else if (of_machine_is_compatible("PowerMac11,2"))
 		use_volts_vdnap = 1;
-- 
cgit 


From 99ec899eafe2ec0a7dd96e9de5fa0a2bea3032ba Mon Sep 17 00:00:00 2001
From: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
Date: Thu, 12 Sep 2013 17:29:09 +0530
Subject: cpufreq: Detect spurious invocations of update_policy_cpu()

The function update_policy_cpu() is expected to be called when the policy->cpu
of a cpufreq policy is to be changed: ie., the new CPU nominated to become the
policy->cpu is different from the old one.

Print a warning if it is invoked with new_cpu == old_cpu, since such an
invocation might hint at a faulty logic in the caller.

Suggested-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index f0897c75468b..ec391d7f010b 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -969,7 +969,7 @@ static void cpufreq_policy_free(struct cpufreq_policy *policy)
 
 static void update_policy_cpu(struct cpufreq_policy *policy, unsigned int cpu)
 {
-	if (cpu == policy->cpu)
+	if (WARN_ON(cpu == policy->cpu))
 		return;
 
 	/*
-- 
cgit 


From 6cf09b9d1762f40ba76a7c0271f00031abecc5dc Mon Sep 17 00:00:00 2001
From: Paul Bolle <pebolle@tiscali.nl>
Date: Wed, 15 May 2013 11:21:01 +0200
Subject: powerpc: remove dependency on MV64360

The Kconfig entry that allows to "Distribute interrupts on all CPUs by
default" has a (negative) dependency on MV64360. But that Kconfig symbol
was removed in v2.6.27, which means that this dependency has evaluated
to true ever since. It can be removed too.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 875d815a8e7f..5f15468300bf 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -420,7 +420,7 @@ config FA_DUMP
 
 config IRQ_ALL_CPUS
 	bool "Distribute interrupts on all CPUs by default"
-	depends on SMP && !MV64360
+	depends on SMP
 	help
 	  This option gives the kernel permission to distribute IRQs across
 	  multiple CPUs.  Saying N here will route all IRQs to the first
-- 
cgit 


From 6b310fc58db27318309a04621d3a4509f1c7845a Mon Sep 17 00:00:00 2001
From: Mihai Caraman <mihai.caraman@freescale.com>
Date: Mon, 1 Jul 2013 18:35:30 +0300
Subject: powerpc/booke64: Use common defines for AltiVec interrupts numbers

On Book3E some SPE/FP/AltiVec interrupts share the same number. Use
common defines to indentify these numbers.

Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/kernel/exceptions-64e.S | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/exceptions-64e.S b/arch/powerpc/kernel/exceptions-64e.S
index 68d74b45232d..e7751561fd1d 100644
--- a/arch/powerpc/kernel/exceptions-64e.S
+++ b/arch/powerpc/kernel/exceptions-64e.S
@@ -399,7 +399,7 @@ interrupt_end_book3e:
 
 /* Altivec Unavailable Interrupt */
 	START_EXCEPTION(altivec_unavailable);
-	NORMAL_EXCEPTION_PROLOG(0x200, BOOKE_INTERRUPT_ALTIVEC_UNAVAIL,
+	NORMAL_EXCEPTION_PROLOG(0x200, BOOKE_INTERRUPT_SPE_ALTIVEC_UNAVAIL,
 				PROLOG_ADDITION_NONE)
 	/* we can probably do a shorter exception entry for that one... */
 	EXCEPTION_COMMON(0x200, PACA_EXGEN, INTS_KEEP)
@@ -421,7 +421,8 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
 
 /* AltiVec Assist */
 	START_EXCEPTION(altivec_assist);
-	NORMAL_EXCEPTION_PROLOG(0x220, BOOKE_INTERRUPT_ALTIVEC_ASSIST,
+	NORMAL_EXCEPTION_PROLOG(0x220,
+				BOOKE_INTERRUPT_SPE_FP_DATA_ALTIVEC_ASSIST,
 				PROLOG_ADDITION_NONE)
 	EXCEPTION_COMMON(0x220, PACA_EXGEN, INTS_DISABLE)
 	bl	.save_nvgprs
-- 
cgit 


From c58ce397a62ec14b7b06c407a4173ed667e20d5f Mon Sep 17 00:00:00 2001
From: Mihai Caraman <mihai.caraman@freescale.com>
Date: Mon, 1 Jul 2013 18:35:31 +0300
Subject: powerpc/fsl-booke: Use common defines for SPE/FP interrupts numbers

On Book3E some SPE/FP/AltiVec interrupts share the same number. Use
common defines to indentify these numbers.

Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com>
[scottwood@freescale.com: fixed space-before-tab]
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/kernel/head_fsl_booke.S | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S
index 289afaffbbb5..f45726a1d963 100644
--- a/arch/powerpc/kernel/head_fsl_booke.S
+++ b/arch/powerpc/kernel/head_fsl_booke.S
@@ -555,27 +555,27 @@ END_FTR_SECTION_IFSET(CPU_FTR_EMB_HV)
 #ifdef CONFIG_SPE
 	/* SPE Unavailable */
 	START_EXCEPTION(SPEUnavailable)
-	NORMAL_EXCEPTION_PROLOG(SPE_UNAVAIL)
+	NORMAL_EXCEPTION_PROLOG(SPE_ALTIVEC_UNAVAIL)
 	beq	1f
 	bl	load_up_spe
 	b	fast_exception_return
 1:	addi	r3,r1,STACK_FRAME_OVERHEAD
 	EXC_XFER_EE_LITE(0x2010, KernelSPE)
 #else
-	EXCEPTION(0x2020, SPE_UNAVAIL, SPEUnavailable, \
+	EXCEPTION(0x2020, SPE_ALTIVEC_UNAVAIL, SPEUnavailable, \
 		  unknown_exception, EXC_XFER_EE)
 #endif /* CONFIG_SPE */
 
 	/* SPE Floating Point Data */
 #ifdef CONFIG_SPE
-	EXCEPTION(0x2030, SPE_FP_DATA, SPEFloatingPointData, \
-		  SPEFloatingPointException, EXC_XFER_EE);
+	EXCEPTION(0x2030, SPE_FP_DATA_ALTIVEC_ASSIST, SPEFloatingPointData,
+		  SPEFloatingPointException, EXC_XFER_EE)
 
 	/* SPE Floating Point Round */
 	EXCEPTION(0x2050, SPE_FP_ROUND, SPEFloatingPointRound, \
 		  SPEFloatingPointRoundException, EXC_XFER_EE)
 #else
-	EXCEPTION(0x2040, SPE_FP_DATA, SPEFloatingPointData, \
+	EXCEPTION(0x2040, SPE_FP_DATA_ALTIVEC_ASSIST, SPEFloatingPointData,
 		  unknown_exception, EXC_XFER_EE)
 	EXCEPTION(0x2050, SPE_FP_ROUND, SPEFloatingPointRound, \
 		  unknown_exception, EXC_XFER_EE)
-- 
cgit 


From 9863c28a2af90a56c088f5f6288d7f6d2c923c14 Mon Sep 17 00:00:00 2001
From: James Yang <James.Yang@freescale.com>
Date: Wed, 3 Jul 2013 16:26:47 -0500
Subject: powerpc: Emulate sync instruction variants

Reserved fields of the sync instruction have been used for other
instructions (e.g. lwsync).  On processors that do not support variants
of the sync instruction, emulate it by executing a sync to subsume the
effect of the intended instruction.

Signed-off-by: James Yang <James.Yang@freescale.com>
[scottwood@freescale.com: whitespace and subject line fix]
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/include/asm/ppc-opcode.h | 2 ++
 arch/powerpc/kernel/traps.c           | 7 +++++++
 2 files changed, 9 insertions(+)

diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h
index ad5fcf51b252..442edee4b6aa 100644
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -143,6 +143,8 @@
 #define PPC_INST_LSWX			0x7c00042a
 #define PPC_INST_LWARX			0x7c000028
 #define PPC_INST_LWSYNC			0x7c2004ac
+#define PPC_INST_SYNC			0x7c0004ac
+#define PPC_INST_SYNC_MASK		0xfc0007fe
 #define PPC_INST_LXVD2X			0x7c000698
 #define PPC_INST_MCRXR			0x7c000400
 #define PPC_INST_MCRXR_MASK		0xfc0007fe
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index f0a6814007a5..36a1f95a2a36 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -1018,6 +1018,13 @@ static int emulate_instruction(struct pt_regs *regs)
 		return emulate_isel(regs, instword);
 	}
 
+	/* Emulate sync instruction variants */
+	if ((instword & PPC_INST_SYNC_MASK) == PPC_INST_SYNC) {
+		PPC_WARN_EMULATED(sync, regs);
+		asm volatile("sync");
+		return 0;
+	}
+
 #ifdef CONFIG_PPC64
 	/* Emulate the mfspr rD, DSCR. */
 	if ((((instword & PPC_INST_MFSPR_DSCR_USER_MASK) ==
-- 
cgit 


From bb478d8b167cf875565ac7d927ffbdc0b6d280e8 Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Mon, 14 Oct 2013 18:08:45 +1030
Subject: virtio_ring: plug kmemleak false positive.

unreferenced object 0xffff88003d467e20 (size 32):
  comm "softirq", pid 0, jiffies 4295197765 (age 6.364s)
  hex dump (first 32 bytes):
    28 19 bf 3d 00 00 00 00 0c 00 00 00 01 00 01 00  (..=............
    02 dc 51 3c 00 00 00 00 56 00 00 00 00 00 00 00  ..Q<....V.......
  backtrace:
    [<ffffffff8152db19>] kmemleak_alloc+0x59/0xc0
    [<ffffffff81102e93>] __kmalloc+0xf3/0x180
    [<ffffffff812db5d6>] vring_add_indirect+0x36/0x280
    [<ffffffff812dc59f>] virtqueue_add_outbuf+0xbf/0x4e0
    [<ffffffff813a8b30>] start_xmit+0x1a0/0x3b0
    [<ffffffff81445861>] dev_hard_start_xmit+0x2d1/0x4d0
    [<ffffffff81460052>] sch_direct_xmit+0xf2/0x1c0
    [<ffffffff81445c28>] dev_queue_xmit+0x1c8/0x460
    [<ffffffff814e3187>] ip6_finish_output2+0x1d7/0x470
    [<ffffffff814e34b0>] ip6_finish_output+0x90/0xb0
    [<ffffffff814e3507>] ip6_output+0x37/0xb0
    [<ffffffff815021eb>] igmp6_send+0x2db/0x470
    [<ffffffff81502645>] igmp6_timer_handler+0x95/0xa0
    [<ffffffff8104b57c>] call_timer_fn+0x2c/0x90
    [<ffffffff8104b7ba>] run_timer_softirq+0x1da/0x1f0
    [<ffffffff81045721>] __do_softirq+0xd1/0x1b0

Address gets embedded in a descriptor via virt_to_phys().  See detach_buf,
which frees it:

	if (vq->vring.desc[i].flags & VRING_DESC_F_INDIRECT)
		kfree(phys_to_virt(vq->vring.desc[i].addr));

Reported-by: Christoph Paasch <christoph.paasch@uclouvain.be>
Fix-suggested-by: Christoph Paasch <christoph.paasch@uclouvain.be>
Typing-done-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 drivers/virtio/virtio_ring.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 6b4a4db4404d..6547d46171b3 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -173,6 +173,8 @@ static inline int vring_add_indirect(struct vring_virtqueue *vq,
 	head = vq->free_head;
 	vq->vring.desc[head].flags = VRING_DESC_F_INDIRECT;
 	vq->vring.desc[head].addr = virt_to_phys(desc);
+	/* kmemleak gives a false positive, as it's hidden by virt_to_phys */
+	kmemleak_ignore(desc);
 	vq->vring.desc[head].len = i * sizeof(struct vring_desc);
 
 	/* Update free pointer */
-- 
cgit 


From 0b90d0622ad290b3717a13489b396af52aea9d2d Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Mon, 14 Oct 2013 18:11:51 +1030
Subject: virtio_config: introduce size-based accessors.

This lets the us do endian conversion if necessary, and insulates the
drivers from that change.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 include/linux/virtio_config.h | 134 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 134 insertions(+)

diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index 29b9104232b4..490a4bbd59a3 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -162,5 +162,139 @@ int virtqueue_set_affinity(struct virtqueue *vq, int cpu)
 	return 0;
 }
 
+/* Config space accessors. */
+#define virtio_cread(vdev, structname, member, ptr)			\
+	do {								\
+		/* Must match the member's type, and be integer */	\
+		if (!typecheck(typeof((((structname*)0)->member)), *(ptr))) \
+			(*ptr) = 1;					\
+									\
+		switch (sizeof(*ptr)) {					\
+		case 1:							\
+			*(ptr) = virtio_cread8(vdev,			\
+					       offsetof(structname, member)); \
+			break;						\
+		case 2:							\
+			*(ptr) = virtio_cread16(vdev,			\
+						offsetof(structname, member)); \
+			break;						\
+		case 4:							\
+			*(ptr) = virtio_cread32(vdev,			\
+						offsetof(structname, member)); \
+			break;						\
+		case 8:							\
+			*(ptr) = virtio_cread64(vdev,			\
+						offsetof(structname, member)); \
+			break;						\
+		default:						\
+			BUG();						\
+		}							\
+	} while(0)
+
+/* Config space accessors. */
+#define virtio_cwrite(vdev, structname, member, ptr)			\
+	do {								\
+		/* Must match the member's type, and be integer */	\
+		if (!typecheck(typeof((((structname*)0)->member)), *(ptr))) \
+			BUG_ON((*ptr) == 1);				\
+									\
+		switch (sizeof(*ptr)) {					\
+		case 1:							\
+			virtio_cwrite8(vdev,				\
+				       offsetof(structname, member),	\
+				       *(ptr));				\
+			break;						\
+		case 2:							\
+			virtio_cwrite16(vdev,				\
+					offsetof(structname, member),	\
+					*(ptr));			\
+			break;						\
+		case 4:							\
+			virtio_cwrite32(vdev,				\
+					offsetof(structname, member),	\
+					*(ptr));			\
+			break;						\
+		case 8:							\
+			virtio_cwrite64(vdev,				\
+					offsetof(structname, member),	\
+					*(ptr));			\
+			break;						\
+		default:						\
+			BUG();						\
+		}							\
+	} while(0)
+
+static inline u8 virtio_cread8(struct virtio_device *vdev, unsigned int offset)
+{
+	u8 ret;
+	vdev->config->get(vdev, offset, &ret, sizeof(ret));
+	return ret;
+}
+
+static inline void virtio_cread_bytes(struct virtio_device *vdev,
+				      unsigned int offset,
+				      void *buf, size_t len)
+{
+	vdev->config->get(vdev, offset, buf, len);
+}
+
+static inline void virtio_cwrite8(struct virtio_device *vdev,
+				  unsigned int offset, u8 val)
+{
+	vdev->config->set(vdev, offset, &val, sizeof(val));
+}
+
+static inline u16 virtio_cread16(struct virtio_device *vdev,
+				 unsigned int offset)
+{
+	u16 ret;
+	vdev->config->get(vdev, offset, &ret, sizeof(ret));
+	return ret;
+}
+
+static inline void virtio_cwrite16(struct virtio_device *vdev,
+				   unsigned int offset, u16 val)
+{
+	vdev->config->set(vdev, offset, &val, sizeof(val));
+}
+
+static inline u32 virtio_cread32(struct virtio_device *vdev,
+				 unsigned int offset)
+{
+	u32 ret;
+	vdev->config->get(vdev, offset, &ret, sizeof(ret));
+	return ret;
+}
+
+static inline void virtio_cwrite32(struct virtio_device *vdev,
+				   unsigned int offset, u32 val)
+{
+	vdev->config->set(vdev, offset, &val, sizeof(val));
+}
+
+static inline u64 virtio_cread64(struct virtio_device *vdev,
+				 unsigned int offset)
+{
+	u64 ret;
+	vdev->config->get(vdev, offset, &ret, sizeof(ret));
+	return ret;
+}
+
+static inline void virtio_cwrite64(struct virtio_device *vdev,
+				   unsigned int offset, u64 val)
+{
+	vdev->config->set(vdev, offset, &val, sizeof(val));
+}
+
+/* Conditional config space accessors. */
+#define virtio_cread_feature(vdev, fbit, structname, member, ptr)	\
+	({								\
+		int _r = 0;						\
+		if (!virtio_has_feature(vdev, fbit))			\
+			_r = -ENOENT;					\
+		else							\
+			virtio_cread((vdev), structname, member, ptr);	\
+		_r;							\
+	})
 
 #endif /* _LINUX_VIRTIO_CONFIG_H */
-- 
cgit 


From 855e0c5288177bcb193f6f6316952d2490478e1c Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Mon, 14 Oct 2013 18:11:51 +1030
Subject: virtio: use size-based config accessors.

This lets the transport do endian conversion if necessary, and insulates
the drivers from the difference.

Most drivers can use the simple helpers virtio_cread() and virtio_cwrite().

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 drivers/block/virtio_blk.c      | 77 ++++++++++++++++++-----------------------
 drivers/char/virtio_console.c   | 15 +++-----
 drivers/net/caif/caif_virtio.c  | 23 ++++++------
 drivers/net/virtio_net.c        | 28 +++++++++------
 drivers/scsi/virtio_scsi.c      | 12 +++----
 drivers/virtio/virtio_balloon.c | 10 +++---
 net/9p/trans_virtio.c           |  9 +++--
 7 files changed, 79 insertions(+), 95 deletions(-)

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 89245b5adca1..6b66252fc4e6 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -456,18 +456,15 @@ static int virtblk_ioctl(struct block_device *bdev, fmode_t mode,
 static int virtblk_getgeo(struct block_device *bd, struct hd_geometry *geo)
 {
 	struct virtio_blk *vblk = bd->bd_disk->private_data;
-	struct virtio_blk_geometry vgeo;
-	int err;
 
 	/* see if the host passed in geometry config */
-	err = virtio_config_val(vblk->vdev, VIRTIO_BLK_F_GEOMETRY,
-				offsetof(struct virtio_blk_config, geometry),
-				&vgeo);
-
-	if (!err) {
-		geo->heads = vgeo.heads;
-		geo->sectors = vgeo.sectors;
-		geo->cylinders = vgeo.cylinders;
+	if (virtio_has_feature(vblk->vdev, VIRTIO_BLK_F_GEOMETRY)) {
+		virtio_cread(vblk->vdev, struct virtio_blk_config,
+			     geometry.cylinders, &geo->cylinders);
+		virtio_cread(vblk->vdev, struct virtio_blk_config,
+			     geometry.heads, &geo->heads);
+		virtio_cread(vblk->vdev, struct virtio_blk_config,
+			     geometry.sectors, &geo->sectors);
 	} else {
 		/* some standard values, similar to sd */
 		geo->heads = 1 << 6;
@@ -529,8 +526,7 @@ static void virtblk_config_changed_work(struct work_struct *work)
 		goto done;
 
 	/* Host must always specify the capacity. */
-	vdev->config->get(vdev, offsetof(struct virtio_blk_config, capacity),
-			  &capacity, sizeof(capacity));
+	virtio_cread(vdev, struct virtio_blk_config, capacity, &capacity);
 
 	/* If capacity is too big, truncate with warning. */
 	if ((sector_t)capacity != capacity) {
@@ -608,9 +604,9 @@ static int virtblk_get_cache_mode(struct virtio_device *vdev)
 	u8 writeback;
 	int err;
 
-	err = virtio_config_val(vdev, VIRTIO_BLK_F_CONFIG_WCE,
-				offsetof(struct virtio_blk_config, wce),
-				&writeback);
+	err = virtio_cread_feature(vdev, VIRTIO_BLK_F_CONFIG_WCE,
+				   struct virtio_blk_config, wce,
+				   &writeback);
 	if (err)
 		writeback = virtio_has_feature(vdev, VIRTIO_BLK_F_WCE);
 
@@ -642,7 +638,6 @@ virtblk_cache_type_store(struct device *dev, struct device_attribute *attr,
 	struct virtio_blk *vblk = disk->private_data;
 	struct virtio_device *vdev = vblk->vdev;
 	int i;
-	u8 writeback;
 
 	BUG_ON(!virtio_has_feature(vblk->vdev, VIRTIO_BLK_F_CONFIG_WCE));
 	for (i = ARRAY_SIZE(virtblk_cache_types); --i >= 0; )
@@ -652,11 +647,7 @@ virtblk_cache_type_store(struct device *dev, struct device_attribute *attr,
 	if (i < 0)
 		return -EINVAL;
 
-	writeback = i;
-	vdev->config->set(vdev,
-			  offsetof(struct virtio_blk_config, wce),
-			  &writeback, sizeof(writeback));
-
+	virtio_cwrite8(vdev, offsetof(struct virtio_blk_config, wce), i);
 	virtblk_update_cache_mode(vdev);
 	return count;
 }
@@ -699,9 +690,9 @@ static int virtblk_probe(struct virtio_device *vdev)
 	index = err;
 
 	/* We need to know how many segments before we allocate. */
-	err = virtio_config_val(vdev, VIRTIO_BLK_F_SEG_MAX,
-				offsetof(struct virtio_blk_config, seg_max),
-				&sg_elems);
+	err = virtio_cread_feature(vdev, VIRTIO_BLK_F_SEG_MAX,
+				   struct virtio_blk_config, seg_max,
+				   &sg_elems);
 
 	/* We need at least one SG element, whatever they say. */
 	if (err || !sg_elems)
@@ -772,8 +763,7 @@ static int virtblk_probe(struct virtio_device *vdev)
 		set_disk_ro(vblk->disk, 1);
 
 	/* Host must always specify the capacity. */
-	vdev->config->get(vdev, offsetof(struct virtio_blk_config, capacity),
-			  &cap, sizeof(cap));
+	virtio_cread(vdev, struct virtio_blk_config, capacity, &cap);
 
 	/* If capacity is too big, truncate with warning. */
 	if ((sector_t)cap != cap) {
@@ -794,46 +784,45 @@ static int virtblk_probe(struct virtio_device *vdev)
 
 	/* Host can optionally specify maximum segment size and number of
 	 * segments. */
-	err = virtio_config_val(vdev, VIRTIO_BLK_F_SIZE_MAX,
-				offsetof(struct virtio_blk_config, size_max),
-				&v);
+	err = virtio_cread_feature(vdev, VIRTIO_BLK_F_SIZE_MAX,
+				   struct virtio_blk_config, size_max, &v);
 	if (!err)
 		blk_queue_max_segment_size(q, v);
 	else
 		blk_queue_max_segment_size(q, -1U);
 
 	/* Host can optionally specify the block size of the device */
-	err = virtio_config_val(vdev, VIRTIO_BLK_F_BLK_SIZE,
-				offsetof(struct virtio_blk_config, blk_size),
-				&blk_size);
+	err = virtio_cread_feature(vdev, VIRTIO_BLK_F_BLK_SIZE,
+				   struct virtio_blk_config, blk_size,
+				   &blk_size);
 	if (!err)
 		blk_queue_logical_block_size(q, blk_size);
 	else
 		blk_size = queue_logical_block_size(q);
 
 	/* Use topology information if available */
-	err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY,
-			offsetof(struct virtio_blk_config, physical_block_exp),
-			&physical_block_exp);
+	err = virtio_cread_feature(vdev, VIRTIO_BLK_F_TOPOLOGY,
+				   struct virtio_blk_config, physical_block_exp,
+				   &physical_block_exp);
 	if (!err && physical_block_exp)
 		blk_queue_physical_block_size(q,
 				blk_size * (1 << physical_block_exp));
 
-	err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY,
-			offsetof(struct virtio_blk_config, alignment_offset),
-			&alignment_offset);
+	err = virtio_cread_feature(vdev, VIRTIO_BLK_F_TOPOLOGY,
+				   struct virtio_blk_config, alignment_offset,
+				   &alignment_offset);
 	if (!err && alignment_offset)
 		blk_queue_alignment_offset(q, blk_size * alignment_offset);
 
-	err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY,
-			offsetof(struct virtio_blk_config, min_io_size),
-			&min_io_size);
+	err = virtio_cread_feature(vdev, VIRTIO_BLK_F_TOPOLOGY,
+				   struct virtio_blk_config, min_io_size,
+				   &min_io_size);
 	if (!err && min_io_size)
 		blk_queue_io_min(q, blk_size * min_io_size);
 
-	err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY,
-			offsetof(struct virtio_blk_config, opt_io_size),
-			&opt_io_size);
+	err = virtio_cread_feature(vdev, VIRTIO_BLK_F_TOPOLOGY,
+				   struct virtio_blk_config, opt_io_size,
+				   &opt_io_size);
 	if (!err && opt_io_size)
 		blk_queue_io_opt(q, blk_size * opt_io_size);
 
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 862fd54a0ffb..2a8d9a7a1834 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -1837,12 +1837,8 @@ static void config_intr(struct virtio_device *vdev)
 		struct port *port;
 		u16 rows, cols;
 
-		vdev->config->get(vdev,
-				  offsetof(struct virtio_console_config, cols),
-				  &cols, sizeof(u16));
-		vdev->config->get(vdev,
-				  offsetof(struct virtio_console_config, rows),
-				  &rows, sizeof(u16));
+		virtio_cread(vdev, struct virtio_console_config, cols, &cols);
+		virtio_cread(vdev, struct virtio_console_config, rows, &rows);
 
 		port = find_port_by_id(portdev, 0);
 		set_console_size(port, rows, cols);
@@ -2014,10 +2010,9 @@ static int virtcons_probe(struct virtio_device *vdev)
 
 	/* Don't test MULTIPORT at all if we're rproc: not a valid feature! */
 	if (!is_rproc_serial(vdev) &&
-	    virtio_config_val(vdev, VIRTIO_CONSOLE_F_MULTIPORT,
-				  offsetof(struct virtio_console_config,
-					   max_nr_ports),
-				  &portdev->config.max_nr_ports) == 0) {
+	    virtio_cread_feature(vdev, VIRTIO_CONSOLE_F_MULTIPORT,
+				 struct virtio_console_config, max_nr_ports,
+				 &portdev->config.max_nr_ports) == 0) {
 		multiport = true;
 	}
 
diff --git a/drivers/net/caif/caif_virtio.c b/drivers/net/caif/caif_virtio.c
index b9ed1288ce2d..985608634f8c 100644
--- a/drivers/net/caif/caif_virtio.c
+++ b/drivers/net/caif/caif_virtio.c
@@ -686,18 +686,19 @@ static int cfv_probe(struct virtio_device *vdev)
 		goto err;
 
 	/* Get the CAIF configuration from virtio config space, if available */
-#define GET_VIRTIO_CONFIG_OPS(_v, _var, _f) \
-	((_v)->config->get(_v, offsetof(struct virtio_caif_transf_config, _f), \
-			   &_var, \
-			   FIELD_SIZEOF(struct virtio_caif_transf_config, _f)))
-
 	if (vdev->config->get) {
-		GET_VIRTIO_CONFIG_OPS(vdev, cfv->tx_hr, headroom);
-		GET_VIRTIO_CONFIG_OPS(vdev, cfv->rx_hr, headroom);
-		GET_VIRTIO_CONFIG_OPS(vdev, cfv->tx_tr, tailroom);
-		GET_VIRTIO_CONFIG_OPS(vdev, cfv->rx_tr, tailroom);
-		GET_VIRTIO_CONFIG_OPS(vdev, cfv->mtu, mtu);
-		GET_VIRTIO_CONFIG_OPS(vdev, cfv->mru, mtu);
+		virtio_cread(vdev, struct virtio_caif_transf_config, headroom,
+			     &cfv->tx_hr);
+		virtio_cread(vdev, struct virtio_caif_transf_config, headroom,
+			     &cfv->rx_hr);
+		virtio_cread(vdev, struct virtio_caif_transf_config, tailroom,
+			     &cfv->tx_tr);
+		virtio_cread(vdev, struct virtio_caif_transf_config, tailroom,
+			     &cfv->rx_tr);
+		virtio_cread(vdev, struct virtio_caif_transf_config, mtu,
+			     &cfv->mtu);
+		virtio_cread(vdev, struct virtio_caif_transf_config, mtu,
+			     &cfv->mru);
 	} else {
 		cfv->tx_hr = CFV_DEF_HEADROOM;
 		cfv->rx_hr = CFV_DEF_HEADROOM;
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 2ad3d96d4a7c..ee022714eadb 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -852,8 +852,13 @@ static int virtnet_set_mac_address(struct net_device *dev, void *p)
 			return -EINVAL;
 		}
 	} else if (virtio_has_feature(vdev, VIRTIO_NET_F_MAC)) {
-		vdev->config->set(vdev, offsetof(struct virtio_net_config, mac),
-				  addr->sa_data, dev->addr_len);
+		unsigned int i;
+
+		/* Naturally, this has an atomicity problem. */
+		for (i = 0; i < dev->addr_len; i++)
+			virtio_cwrite8(vdev,
+				       offsetof(struct virtio_net_config, mac) +
+				       i, addr->sa_data[i]);
 	}
 
 	eth_commit_mac_addr_change(dev, p);
@@ -1266,9 +1271,8 @@ static void virtnet_config_changed_work(struct work_struct *work)
 	if (!vi->config_enable)
 		goto done;
 
-	if (virtio_config_val(vi->vdev, VIRTIO_NET_F_STATUS,
-			      offsetof(struct virtio_net_config, status),
-			      &v) < 0)
+	if (virtio_cread_feature(vi->vdev, VIRTIO_NET_F_STATUS,
+				 struct virtio_net_config, status, &v) < 0)
 		goto done;
 
 	if (v & VIRTIO_NET_S_ANNOUNCE) {
@@ -1490,9 +1494,9 @@ static int virtnet_probe(struct virtio_device *vdev)
 	u16 max_queue_pairs;
 
 	/* Find if host supports multiqueue virtio_net device */
-	err = virtio_config_val(vdev, VIRTIO_NET_F_MQ,
-				offsetof(struct virtio_net_config,
-				max_virtqueue_pairs), &max_queue_pairs);
+	err = virtio_cread_feature(vdev, VIRTIO_NET_F_MQ,
+				   struct virtio_net_config,
+				   max_virtqueue_pairs, &max_queue_pairs);
 
 	/* We need at least 2 queue's */
 	if (err || max_queue_pairs < VIRTIO_NET_CTRL_MQ_VQ_PAIRS_MIN ||
@@ -1544,9 +1548,11 @@ static int virtnet_probe(struct virtio_device *vdev)
 	dev->vlan_features = dev->features;
 
 	/* Configuration may specify what MAC to use.  Otherwise random. */
-	if (virtio_config_val_len(vdev, VIRTIO_NET_F_MAC,
-				  offsetof(struct virtio_net_config, mac),
-				  dev->dev_addr, dev->addr_len) < 0)
+	if (virtio_has_feature(vdev, VIRTIO_NET_F_MAC))
+		virtio_cread_bytes(vdev,
+				   offsetof(struct virtio_net_config, mac),
+				   dev->dev_addr, dev->addr_len);
+	else
 		eth_hw_addr_random(dev);
 
 	/* Set up our device-specific information */
diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index 2a110391f8ce..e6bb2352df40 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -710,19 +710,15 @@ static struct scsi_host_template virtscsi_host_template_multi = {
 #define virtscsi_config_get(vdev, fld) \
 	({ \
 		typeof(((struct virtio_scsi_config *)0)->fld) __val; \
-		vdev->config->get(vdev, \
-				  offsetof(struct virtio_scsi_config, fld), \
-				  &__val, sizeof(__val)); \
+		virtio_cread(vdev, struct virtio_scsi_config, fld, &__val); \
 		__val; \
 	})
 
 #define virtscsi_config_set(vdev, fld, val) \
-	(void)({ \
+	do { \
 		typeof(((struct virtio_scsi_config *)0)->fld) __val = (val); \
-		vdev->config->set(vdev, \
-				  offsetof(struct virtio_scsi_config, fld), \
-				  &__val, sizeof(__val)); \
-	})
+		virtio_cwrite(vdev, struct virtio_scsi_config, fld, &__val); \
+	} while(0)
 
 static void __virtscsi_set_affinity(struct virtio_scsi *vscsi, bool affinity)
 {
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index d6f681641606..c444654fc33f 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -275,9 +275,8 @@ static inline s64 towards_target(struct virtio_balloon *vb)
 	__le32 v;
 	s64 target;
 
-	vb->vdev->config->get(vb->vdev,
-			      offsetof(struct virtio_balloon_config, num_pages),
-			      &v, sizeof(v));
+	virtio_cread(vb->vdev, struct virtio_balloon_config, num_pages, &v);
+
 	target = le32_to_cpu(v);
 	return target - vb->num_pages;
 }
@@ -286,9 +285,8 @@ static void update_balloon_size(struct virtio_balloon *vb)
 {
 	__le32 actual = cpu_to_le32(vb->num_pages);
 
-	vb->vdev->config->set(vb->vdev,
-			      offsetof(struct virtio_balloon_config, actual),
-			      &actual, sizeof(actual));
+	virtio_cwrite(vb->vdev, struct virtio_balloon_config, num_pages,
+		      &actual);
 }
 
 static int balloon(void *_vballoon)
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index 990afab2be1b..9c5a1aa34d12 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -544,9 +544,7 @@ static int p9_virtio_probe(struct virtio_device *vdev)
 
 	chan->inuse = false;
 	if (virtio_has_feature(vdev, VIRTIO_9P_MOUNT_TAG)) {
-		vdev->config->get(vdev,
-				offsetof(struct virtio_9p_config, tag_len),
-				&tag_len, sizeof(tag_len));
+		virtio_cread(vdev, struct virtio_9p_config, tag_len, &tag_len);
 	} else {
 		err = -EINVAL;
 		goto out_free_vq;
@@ -556,8 +554,9 @@ static int p9_virtio_probe(struct virtio_device *vdev)
 		err = -ENOMEM;
 		goto out_free_vq;
 	}
-	vdev->config->get(vdev, offsetof(struct virtio_9p_config, tag),
-			tag, tag_len);
+
+	virtio_cread_bytes(vdev, offsetof(struct virtio_9p_config, tag),
+			   tag, tag_len);
 	chan->tag = tag;
 	chan->tag_len = tag_len;
 	err = sysfs_create_file(&(vdev->dev.kobj), &dev_attr_mount_tag.attr);
-- 
cgit 


From 630b54d33493d1f67e79b148b5e361c5bbd3f29d Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Mon, 14 Oct 2013 18:11:51 +1030
Subject: virtio_config: remove virtio_config_val

The virtio_cread() functions should now be used.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 include/linux/virtio_config.h | 27 ---------------------------
 1 file changed, 27 deletions(-)

diff --git a/include/linux/virtio_config.h b/include/linux/virtio_config.h
index 490a4bbd59a3..e8f8f71e843c 100644
--- a/include/linux/virtio_config.h
+++ b/include/linux/virtio_config.h
@@ -96,33 +96,6 @@ static inline bool virtio_has_feature(const struct virtio_device *vdev,
 	return test_bit(fbit, vdev->features);
 }
 
-/**
- * virtio_config_val - look for a feature and get a virtio config entry.
- * @vdev: the virtio device
- * @fbit: the feature bit
- * @offset: the type to search for.
- * @v: a pointer to the value to fill in.
- *
- * The return value is -ENOENT if the feature doesn't exist.  Otherwise
- * the config value is copied into whatever is pointed to by v. */
-#define virtio_config_val(vdev, fbit, offset, v) \
-	virtio_config_buf((vdev), (fbit), (offset), (v), sizeof(*v))
-
-#define virtio_config_val_len(vdev, fbit, offset, v, len) \
-	virtio_config_buf((vdev), (fbit), (offset), (v), (len))
-
-static inline int virtio_config_buf(struct virtio_device *vdev,
-				    unsigned int fbit,
-				    unsigned int offset,
-				    void *buf, unsigned len)
-{
-	if (!virtio_has_feature(vdev, fbit))
-		return -ENOENT;
-
-	vdev->config->get(vdev, offset, buf, len);
-	return 0;
-}
-
 static inline
 struct virtqueue *virtio_find_single_vq(struct virtio_device *vdev,
 					vq_callback_t *c, const char *n)
-- 
cgit 


From 7cb92fd2a0515ea2ae905bf6c90a84aed2b78ffb Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Tue, 15 Oct 2013 15:23:40 +0800
Subject: serial: imx: optimization: remove the workqueues for DMA

I worried that the delay of the sdma_run_channel0() maybe too long for
interrupt context, so I added the workqueues for RX/TX DMA.

But tested with bluetooth device, I find that the delay of sdma_run_channel0()
is about 8us (tested in imx6dl sabreauto board). I think the delay
is acceptable.

This patch removes the RX/TX workqueues for DMA, it makes the
code more clear.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/imx.c | 54 +++++++++---------------------------------------
 1 file changed, 10 insertions(+), 44 deletions(-)

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 13c2c2d09cac..bb84f8d4c54e 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -223,8 +223,7 @@ struct imx_port {
 	struct dma_chan		*dma_chan_rx, *dma_chan_tx;
 	struct scatterlist	rx_sgl, tx_sgl[2];
 	void			*rx_buf;
-	unsigned int		rx_bytes, tx_bytes;
-	struct work_struct	tsk_dma_rx, tsk_dma_tx;
+	unsigned int		tx_bytes;
 	unsigned int		dma_tx_nents;
 	wait_queue_head_t	dma_wait;
 };
@@ -505,32 +504,23 @@ static void dma_tx_callback(void *data)
 		dev_dbg(sport->port.dev, "exit in %s.\n", __func__);
 		return;
 	}
-
-	schedule_work(&sport->tsk_dma_tx);
 }
 
-static void dma_tx_work(struct work_struct *w)
+static void imx_dma_tx(struct imx_port *sport)
 {
-	struct imx_port *sport = container_of(w, struct imx_port, tsk_dma_tx);
 	struct circ_buf *xmit = &sport->port.state->xmit;
 	struct scatterlist *sgl = sport->tx_sgl;
 	struct dma_async_tx_descriptor *desc;
 	struct dma_chan	*chan = sport->dma_chan_tx;
 	struct device *dev = sport->port.dev;
 	enum dma_status status;
-	unsigned long flags;
 	int ret;
 
 	status = dmaengine_tx_status(chan, (dma_cookie_t)0, NULL);
 	if (DMA_IN_PROGRESS == status)
 		return;
 
-	spin_lock_irqsave(&sport->port.lock, flags);
 	sport->tx_bytes = uart_circ_chars_pending(xmit);
-	if (sport->tx_bytes == 0) {
-		spin_unlock_irqrestore(&sport->port.lock, flags);
-		return;
-	}
 
 	if (xmit->tail > xmit->head && xmit->head > 0) {
 		sport->dma_tx_nents = 2;
@@ -542,7 +532,6 @@ static void dma_tx_work(struct work_struct *w)
 		sport->dma_tx_nents = 1;
 		sg_init_one(sgl, xmit->buf + xmit->tail, sport->tx_bytes);
 	}
-	spin_unlock_irqrestore(&sport->port.lock, flags);
 
 	ret = dma_map_sg(dev, sgl, sport->dma_tx_nents, DMA_TO_DEVICE);
 	if (ret == 0) {
@@ -609,11 +598,7 @@ static void imx_start_tx(struct uart_port *port)
 	}
 
 	if (sport->dma_is_enabled) {
-		/*
-		 * We may in the interrupt context, so arise a work_struct to
-		 * do the real job.
-		 */
-		schedule_work(&sport->tsk_dma_tx);
+		imx_dma_tx(sport);
 		return;
 	}
 
@@ -732,6 +717,7 @@ out:
 	return IRQ_HANDLED;
 }
 
+static int start_rx_dma(struct imx_port *sport);
 /*
  * If the RXFIFO is filled with some data, and then we
  * arise a DMA operation to receive them.
@@ -750,7 +736,7 @@ static void imx_dma_rxint(struct imx_port *sport)
 		writel(temp, sport->port.membase + UCR1);
 
 		/* tell the DMA to receive the data. */
-		schedule_work(&sport->tsk_dma_rx);
+		start_rx_dma(sport);
 	}
 }
 
@@ -872,22 +858,6 @@ static int imx_setup_ufcr(struct imx_port *sport, unsigned int mode)
 }
 
 #define RX_BUF_SIZE	(PAGE_SIZE)
-static int start_rx_dma(struct imx_port *sport);
-static void dma_rx_work(struct work_struct *w)
-{
-	struct imx_port *sport = container_of(w, struct imx_port, tsk_dma_rx);
-	struct tty_port *port = &sport->port.state->port;
-
-	if (sport->rx_bytes) {
-		tty_insert_flip_string(port, sport->rx_buf, sport->rx_bytes);
-		tty_flip_buffer_push(port);
-		sport->rx_bytes = 0;
-	}
-
-	if (sport->dma_is_rxing)
-		start_rx_dma(sport);
-}
-
 static void imx_rx_dma_done(struct imx_port *sport)
 {
 	unsigned long temp;
@@ -919,6 +889,7 @@ static void dma_rx_callback(void *data)
 	struct imx_port *sport = data;
 	struct dma_chan	*chan = sport->dma_chan_rx;
 	struct scatterlist *sgl = &sport->rx_sgl;
+	struct tty_port *port = &sport->port.state->port;
 	struct dma_tx_state state;
 	enum dma_status status;
 	unsigned int count;
@@ -931,8 +902,10 @@ static void dma_rx_callback(void *data)
 	dev_dbg(sport->port.dev, "We get %d bytes.\n", count);
 
 	if (count) {
-		sport->rx_bytes = count;
-		schedule_work(&sport->tsk_dma_rx);
+		tty_insert_flip_string(port, sport->rx_buf, count);
+		tty_flip_buffer_push(port);
+
+		start_rx_dma(sport);
 	} else
 		imx_rx_dma_done(sport);
 }
@@ -1014,7 +987,6 @@ static int imx_uart_dma_init(struct imx_port *sport)
 		ret = -ENOMEM;
 		goto err;
 	}
-	sport->rx_bytes = 0;
 
 	/* Prepare for TX : */
 	sport->dma_chan_tx = dma_request_slave_channel(dev, "tx");
@@ -1045,11 +1017,7 @@ err:
 static void imx_enable_dma(struct imx_port *sport)
 {
 	unsigned long temp;
-	struct tty_port *port = &sport->port.state->port;
 
-	port->low_latency = 1;
-	INIT_WORK(&sport->tsk_dma_tx, dma_tx_work);
-	INIT_WORK(&sport->tsk_dma_rx, dma_rx_work);
 	init_waitqueue_head(&sport->dma_wait);
 
 	/* set UCR1 */
@@ -1070,7 +1038,6 @@ static void imx_enable_dma(struct imx_port *sport)
 static void imx_disable_dma(struct imx_port *sport)
 {
 	unsigned long temp;
-	struct tty_port *port = &sport->port.state->port;
 
 	/* clear UCR1 */
 	temp = readl(sport->port.membase + UCR1);
@@ -1088,7 +1055,6 @@ static void imx_disable_dma(struct imx_port *sport)
 	writel(temp, sport->port.membase + UCR4);
 
 	sport->dma_is_enabled = 0;
-	port->low_latency = 0;
 }
 
 /* half the RX buffer size */
-- 
cgit 


From 64c862a839a8db2c02bbaa88b923d13e1208919d Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 11 Oct 2013 13:11:38 -0700
Subject: devres: add kernel standard devm_k.alloc functions

Currently, devm_ managed memory only supports kzalloc.

Convert the devm_kzalloc implementation to devm_kmalloc and remove the
complete memset to 0 but still set the initial struct devres header and
whatever padding before data to 0.

Add the other normal alloc variants as static inlines with __GFP_ZERO
added to the gfp flag where appropriate:

	devm_kzalloc
	devm_kcalloc
	devm_kmalloc_array

Add gfp.h to device.h for the newly added static inlines.

akpm: the current API forces us to replace kmalloc() with kzalloc() when
performing devm_ conversions.  This adds a relatively minor overhead.
More significantly, it will defeat kmemcheck used-uninitialized checking,
and for a particular driver, losing used-uninitialised checking for their
core controlling data structures will significantly degrade kmemcheck
usefulness.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Sangjung Woo <sangjung.woo@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/base/devres.c  | 27 ++++++++++++++++-----------
 include/linux/device.h | 21 +++++++++++++++++++--
 2 files changed, 35 insertions(+), 13 deletions(-)

diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index 507379e7b763..37e67a26e388 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -91,7 +91,8 @@ static __always_inline struct devres * alloc_dr(dr_release_t release,
 	if (unlikely(!dr))
 		return NULL;
 
-	memset(dr, 0, tot_size);
+	memset(dr, 0, offsetof(struct devres, data));
+
 	INIT_LIST_HEAD(&dr->node.entry);
 	dr->node.release = release;
 	return dr;
@@ -745,58 +746,62 @@ void devm_remove_action(struct device *dev, void (*action)(void *), void *data)
 EXPORT_SYMBOL_GPL(devm_remove_action);
 
 /*
- * Managed kzalloc/kfree
+ * Managed kmalloc/kfree
  */
-static void devm_kzalloc_release(struct device *dev, void *res)
+static void devm_kmalloc_release(struct device *dev, void *res)
 {
 	/* noop */
 }
 
-static int devm_kzalloc_match(struct device *dev, void *res, void *data)
+static int devm_kmalloc_match(struct device *dev, void *res, void *data)
 {
 	return res == data;
 }
 
 /**
- * devm_kzalloc - Resource-managed kzalloc
+ * devm_kmalloc - Resource-managed kmalloc
  * @dev: Device to allocate memory for
  * @size: Allocation size
  * @gfp: Allocation gfp flags
  *
- * Managed kzalloc.  Memory allocated with this function is
+ * Managed kmalloc.  Memory allocated with this function is
  * automatically freed on driver detach.  Like all other devres
  * resources, guaranteed alignment is unsigned long long.
  *
  * RETURNS:
  * Pointer to allocated memory on success, NULL on failure.
  */
-void * devm_kzalloc(struct device *dev, size_t size, gfp_t gfp)
+void * devm_kmalloc(struct device *dev, size_t size, gfp_t gfp)
 {
 	struct devres *dr;
 
 	/* use raw alloc_dr for kmalloc caller tracing */
-	dr = alloc_dr(devm_kzalloc_release, size, gfp);
+	dr = alloc_dr(devm_kmalloc_release, size, gfp);
 	if (unlikely(!dr))
 		return NULL;
 
+	/*
+	 * This is named devm_kzalloc_release for historical reasons
+	 * The initial implementation did not support kmalloc, only kzalloc
+	 */
 	set_node_dbginfo(&dr->node, "devm_kzalloc_release", size);
 	devres_add(dev, dr->data);
 	return dr->data;
 }
-EXPORT_SYMBOL_GPL(devm_kzalloc);
+EXPORT_SYMBOL_GPL(devm_kmalloc);
 
 /**
  * devm_kfree - Resource-managed kfree
  * @dev: Device this memory belongs to
  * @p: Memory to free
  *
- * Free memory allocated with devm_kzalloc().
+ * Free memory allocated with devm_kmalloc().
  */
 void devm_kfree(struct device *dev, void *p)
 {
 	int rc;
 
-	rc = devres_destroy(dev, devm_kzalloc_release, devm_kzalloc_match, p);
+	rc = devres_destroy(dev, devm_kmalloc_release, devm_kmalloc_match, p);
 	WARN_ON(rc);
 }
 EXPORT_SYMBOL_GPL(devm_kfree);
diff --git a/include/linux/device.h b/include/linux/device.h
index 94638efa0bf8..5e44cff5bced 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -26,6 +26,7 @@
 #include <linux/atomic.h>
 #include <linux/ratelimit.h>
 #include <linux/uidgid.h>
+#include <linux/gfp.h>
 #include <asm/device.h>
 
 struct device;
@@ -606,8 +607,24 @@ extern void devres_close_group(struct device *dev, void *id);
 extern void devres_remove_group(struct device *dev, void *id);
 extern int devres_release_group(struct device *dev, void *id);
 
-/* managed kzalloc/kfree for device drivers, no kmalloc, always use kzalloc */
-extern void *devm_kzalloc(struct device *dev, size_t size, gfp_t gfp);
+/* managed devm_k.alloc/kfree for device drivers */
+extern void *devm_kmalloc(struct device *dev, size_t size, gfp_t gfp);
+static inline void *devm_kzalloc(struct device *dev, size_t size, gfp_t gfp)
+{
+	return devm_kmalloc(dev, size, gfp | __GFP_ZERO);
+}
+static inline void *devm_kmalloc_array(struct device *dev,
+				       size_t n, size_t size, gfp_t flags)
+{
+	if (size != 0 && n > SIZE_MAX / size)
+		return NULL;
+	return devm_kmalloc(dev, n * size, flags);
+}
+static inline void *devm_kcalloc(struct device *dev,
+				 size_t n, size_t size, gfp_t flags)
+{
+	return devm_kmalloc_array(dev, n, size, flags | __GFP_ZERO);
+}
 extern void devm_kfree(struct device *dev, void *p);
 
 void __iomem *devm_ioremap_resource(struct device *dev, struct resource *res);
-- 
cgit 


From 69df75334bf6d68a0a74397c2cc32172f0d7d620 Mon Sep 17 00:00:00 2001
From: "ethan.zhao" <ethan.kernel@gmail.com>
Date: Sun, 13 Oct 2013 22:12:35 +0800
Subject: drivers/base/core.c: output device renaming messages with dev_dbg().

Replace pr_debug() with dev_dbg().

Signed-off-by: ethan.zhao <ethan.kernel@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/base/core.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index bf35c557707f..67b180d855b2 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -1816,8 +1816,7 @@ int device_rename(struct device *dev, const char *new_name)
 	if (!dev)
 		return -EINVAL;
 
-	pr_debug("device: '%s': %s: renaming to '%s'\n", dev_name(dev),
-		 __func__, new_name);
+	dev_dbg(dev, "renaming to %s\n", new_name);
 
 	old_device_name = kstrdup(dev_name(dev), GFP_KERNEL);
 	if (!old_device_name) {
-- 
cgit 


From 2df4390130a85c2dd85ba3eb96f0c25ae7c5bca3 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sun, 6 Oct 2013 23:55:42 -0700
Subject: PNP: convert bus code to use dev_groups

The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the PNP bus code to use the
correct field.

Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pnp/base.h      |  2 +-
 drivers/pnp/driver.c    |  2 +-
 drivers/pnp/interface.c | 43 ++++++++++++++++++++++++++-----------------
 3 files changed, 28 insertions(+), 19 deletions(-)

diff --git a/drivers/pnp/base.h b/drivers/pnp/base.h
index ffd53e3eb92f..c8873b0ca551 100644
--- a/drivers/pnp/base.h
+++ b/drivers/pnp/base.h
@@ -4,7 +4,7 @@
  */
 
 extern spinlock_t pnp_lock;
-extern struct device_attribute pnp_interface_attrs[];
+extern const struct attribute_group *pnp_dev_groups[];
 void *pnp_alloc(long size);
 
 int pnp_register_protocol(struct pnp_protocol *protocol);
diff --git a/drivers/pnp/driver.c b/drivers/pnp/driver.c
index a39ee38a9414..6936e0acedcd 100644
--- a/drivers/pnp/driver.c
+++ b/drivers/pnp/driver.c
@@ -246,7 +246,7 @@ struct bus_type pnp_bus_type = {
 	.remove  = pnp_device_remove,
 	.shutdown = pnp_device_shutdown,
 	.pm	 = &pnp_bus_dev_pm_ops,
-	.dev_attrs = pnp_interface_attrs,
+	.dev_groups = pnp_dev_groups,
 };
 
 int pnp_register_driver(struct pnp_driver *drv)
diff --git a/drivers/pnp/interface.c b/drivers/pnp/interface.c
index 0c201317284b..e6c403be09a9 100644
--- a/drivers/pnp/interface.c
+++ b/drivers/pnp/interface.c
@@ -203,8 +203,8 @@ static void pnp_print_option(pnp_info_buffer_t * buffer, char *space,
 	}
 }
 
-static ssize_t pnp_show_options(struct device *dmdev,
-				struct device_attribute *attr, char *buf)
+static ssize_t options_show(struct device *dmdev, struct device_attribute *attr,
+			    char *buf)
 {
 	struct pnp_dev *dev = to_pnp_dev(dmdev);
 	pnp_info_buffer_t *buffer;
@@ -241,10 +241,10 @@ static ssize_t pnp_show_options(struct device *dmdev,
 	kfree(buffer);
 	return ret;
 }
+static DEVICE_ATTR_RO(options);
 
-static ssize_t pnp_show_current_resources(struct device *dmdev,
-					  struct device_attribute *attr,
-					  char *buf)
+static ssize_t resources_show(struct device *dmdev,
+			      struct device_attribute *attr, char *buf)
 {
 	struct pnp_dev *dev = to_pnp_dev(dmdev);
 	pnp_info_buffer_t *buffer;
@@ -331,9 +331,9 @@ static char *pnp_get_resource_value(char *buf,
 	return buf;
 }
 
-static ssize_t pnp_set_current_resources(struct device *dmdev,
-					 struct device_attribute *attr,
-					 const char *ubuf, size_t count)
+static ssize_t resources_store(struct device *dmdev,
+			       struct device_attribute *attr, const char *ubuf,
+			       size_t count)
 {
 	struct pnp_dev *dev = to_pnp_dev(dmdev);
 	char *buf = (void *)ubuf;
@@ -434,9 +434,10 @@ done:
 		return retval;
 	return count;
 }
+static DEVICE_ATTR_RW(resources);
 
-static ssize_t pnp_show_current_ids(struct device *dmdev,
-				    struct device_attribute *attr, char *buf)
+static ssize_t id_show(struct device *dmdev, struct device_attribute *attr,
+		       char *buf)
 {
 	char *str = buf;
 	struct pnp_dev *dev = to_pnp_dev(dmdev);
@@ -448,12 +449,20 @@ static ssize_t pnp_show_current_ids(struct device *dmdev,
 	}
 	return (str - buf);
 }
+static DEVICE_ATTR_RO(id);
 
-struct device_attribute pnp_interface_attrs[] = {
-	__ATTR(resources, S_IRUGO | S_IWUSR,
-		   pnp_show_current_resources,
-		   pnp_set_current_resources),
-	__ATTR(options, S_IRUGO, pnp_show_options, NULL),
-	__ATTR(id, S_IRUGO, pnp_show_current_ids, NULL),
-	__ATTR_NULL,
+static struct attribute *pnp_dev_attrs[] = {
+	&dev_attr_resources.attr,
+	&dev_attr_options.attr,
+	&dev_attr_id.attr,
+	NULL,
+};
+
+static const struct attribute_group pnp_dev_group = {
+	.attrs = pnp_dev_attrs,
+};
+
+const struct attribute_group *pnp_dev_groups[] = {
+	&pnp_dev_group,
+	NULL,
 };
-- 
cgit 


From f24fc57b24444fe31fbddb5716195bb8bbc70b58 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sun, 6 Oct 2013 23:55:43 -0700
Subject: MMC: convert bus code to use dev_groups

The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the MMC bus code to use the
correct field.

Cc: Chris Ball <cjb@laptop.org>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Konstantin Dorfman <kdorfman@codeaurora.org>
Cc: Seungwon Jeon <tgih.jun@samsung.com>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/mmc/core/bus.c      | 12 +++++++-----
 drivers/mmc/core/sdio_bus.c | 21 ++++++++++++---------
 2 files changed, 19 insertions(+), 14 deletions(-)

diff --git a/drivers/mmc/core/bus.c b/drivers/mmc/core/bus.c
index 704bf66f5873..3e227bd91e81 100644
--- a/drivers/mmc/core/bus.c
+++ b/drivers/mmc/core/bus.c
@@ -27,7 +27,7 @@
 
 #define to_mmc_driver(d)	container_of(d, struct mmc_driver, drv)
 
-static ssize_t mmc_type_show(struct device *dev,
+static ssize_t type_show(struct device *dev,
 	struct device_attribute *attr, char *buf)
 {
 	struct mmc_card *card = mmc_dev_to_card(dev);
@@ -45,11 +45,13 @@ static ssize_t mmc_type_show(struct device *dev,
 		return -EFAULT;
 	}
 }
+static DEVICE_ATTR_RO(type);
 
-static struct device_attribute mmc_dev_attrs[] = {
-	__ATTR(type, S_IRUGO, mmc_type_show, NULL),
-	__ATTR_NULL,
+static struct attribute *mmc_dev_attrs[] = {
+	&dev_attr_type.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(mmc_dev);
 
 /*
  * This currently matches any MMC driver to any MMC card - drivers
@@ -218,7 +220,7 @@ static const struct dev_pm_ops mmc_bus_pm_ops = {
 
 static struct bus_type mmc_bus_type = {
 	.name		= "mmc",
-	.dev_attrs	= mmc_dev_attrs,
+	.dev_groups	= mmc_dev_groups,
 	.match		= mmc_bus_match,
 	.uevent		= mmc_bus_uevent,
 	.probe		= mmc_bus_probe,
diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c
index 6d67492a9247..ef8956568c3a 100644
--- a/drivers/mmc/core/sdio_bus.c
+++ b/drivers/mmc/core/sdio_bus.c
@@ -34,7 +34,8 @@ field##_show(struct device *dev, struct device_attribute *attr, char *buf)				\
 									\
 	func = dev_to_sdio_func (dev);					\
 	return sprintf (buf, format_string, func->field);		\
-}
+}									\
+static DEVICE_ATTR_RO(field)
 
 sdio_config_attr(class, "0x%02x\n");
 sdio_config_attr(vendor, "0x%04x\n");
@@ -47,14 +48,16 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 	return sprintf(buf, "sdio:c%02Xv%04Xd%04X\n",
 			func->class, func->vendor, func->device);
 }
-
-static struct device_attribute sdio_dev_attrs[] = {
-	__ATTR_RO(class),
-	__ATTR_RO(vendor),
-	__ATTR_RO(device),
-	__ATTR_RO(modalias),
-	__ATTR_NULL,
+static DEVICE_ATTR_RO(modalias);
+
+static struct attribute *sdio_dev_attrs[] = {
+	&dev_attr_class.attr,
+	&dev_attr_vendor.attr,
+	&dev_attr_device.attr,
+	&dev_attr_modalias.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(sdio_dev);
 
 static const struct sdio_device_id *sdio_match_one(struct sdio_func *func,
 	const struct sdio_device_id *id)
@@ -225,7 +228,7 @@ static const struct dev_pm_ops sdio_bus_pm_ops = {
 
 static struct bus_type sdio_bus_type = {
 	.name		= "sdio",
-	.dev_attrs	= sdio_dev_attrs,
+	.dev_groups	= sdio_dev_groups,
 	.match		= sdio_bus_match,
 	.uevent		= sdio_bus_uevent,
 	.probe		= sdio_bus_probe,
-- 
cgit 


From 1b604039a342a4ba465d37657bec55db476506b0 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sun, 6 Oct 2013 23:55:44 -0700
Subject: uwb: convert bus code to use dev_groups

The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the uwb bus code to use the
correct field.

Cc: Bruno Morelli <bruno@evidence.eu.com>
Cc: <linux-usb@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/uwb/umc-bus.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/uwb/umc-bus.c b/drivers/uwb/umc-bus.c
index 5c5b3fc9088a..e3ed6ff6a481 100644
--- a/drivers/uwb/umc-bus.c
+++ b/drivers/uwb/umc-bus.c
@@ -201,6 +201,7 @@ static ssize_t capability_id_show(struct device *dev, struct device_attribute *a
 
 	return sprintf(buf, "0x%02x\n", umc->cap_id);
 }
+static DEVICE_ATTR_RO(capability_id);
 
 static ssize_t version_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
@@ -208,12 +209,14 @@ static ssize_t version_show(struct device *dev, struct device_attribute *attr, c
 
 	return sprintf(buf, "0x%04x\n", umc->version);
 }
+static DEVICE_ATTR_RO(version);
 
-static struct device_attribute umc_dev_attrs[] = {
-	__ATTR_RO(capability_id),
-	__ATTR_RO(version),
-	__ATTR_NULL,
+static struct attribute *umc_dev_attrs[] = {
+	&dev_attr_capability_id.attr,
+	&dev_attr_version.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(umc_dev);
 
 struct bus_type umc_bus_type = {
 	.name		= "umc",
@@ -222,7 +225,7 @@ struct bus_type umc_bus_type = {
 	.remove		= umc_device_remove,
 	.suspend        = umc_device_suspend,
 	.resume         = umc_device_resume,
-	.dev_attrs	= umc_dev_attrs,
+	.dev_groups	= umc_dev_groups,
 };
 EXPORT_SYMBOL_GPL(umc_bus_type);
 
-- 
cgit 


From fdcf4f8159a2cde865732ac4f47f338e91e41fcc Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sun, 6 Oct 2013 23:55:45 -0700
Subject: bcma: convert bus code to use dev_groups
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the bcma bus code to use the
correct field.

Acked-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/bcma/main.c | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/drivers/bcma/main.c b/drivers/bcma/main.c
index 90ee350442a9..e15430a82e90 100644
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -30,28 +30,37 @@ static ssize_t manuf_show(struct device *dev, struct device_attribute *attr, cha
 	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
 	return sprintf(buf, "0x%03X\n", core->id.manuf);
 }
+static DEVICE_ATTR_RO(manuf);
+
 static ssize_t id_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
 	return sprintf(buf, "0x%03X\n", core->id.id);
 }
+static DEVICE_ATTR_RO(id);
+
 static ssize_t rev_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
 	return sprintf(buf, "0x%02X\n", core->id.rev);
 }
+static DEVICE_ATTR_RO(rev);
+
 static ssize_t class_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct bcma_device *core = container_of(dev, struct bcma_device, dev);
 	return sprintf(buf, "0x%X\n", core->id.class);
 }
-static struct device_attribute bcma_device_attrs[] = {
-	__ATTR_RO(manuf),
-	__ATTR_RO(id),
-	__ATTR_RO(rev),
-	__ATTR_RO(class),
-	__ATTR_NULL,
+static DEVICE_ATTR_RO(class);
+
+static struct attribute *bcma_device_attrs[] = {
+	&dev_attr_manuf.attr,
+	&dev_attr_id.attr,
+	&dev_attr_rev.attr,
+	&dev_attr_class.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(bcma_device);
 
 static struct bus_type bcma_bus_type = {
 	.name		= "bcma",
@@ -59,7 +68,7 @@ static struct bus_type bcma_bus_type = {
 	.probe		= bcma_device_probe,
 	.remove		= bcma_device_remove,
 	.uevent		= bcma_device_uevent,
-	.dev_attrs	= bcma_device_attrs,
+	.dev_groups	= bcma_device_groups,
 };
 
 static u16 bcma_cc_core_id(struct bcma_bus *bus)
-- 
cgit 


From b9b2f36761501c7bda070cacc53d24235f2529de Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sun, 6 Oct 2013 23:55:46 -0700
Subject: pcmcia: convert bus code to use dev_groups

The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the pcmcia bus code to use the
correct field.

Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: <linux-pcmcia@lists.infradead.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pcmcia/ds.c | 65 ++++++++++++++++++++++++++++++++---------------------
 1 file changed, 39 insertions(+), 26 deletions(-)

diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c
index 2deacbb2ffdc..757119b87146 100644
--- a/drivers/pcmcia/ds.c
+++ b/drivers/pcmcia/ds.c
@@ -992,16 +992,17 @@ static ssize_t field##_show (struct device *dev, struct device_attribute *attr,
 {									\
 	struct pcmcia_device *p_dev = to_pcmcia_dev(dev);		\
 	return p_dev->test ? sprintf(buf, format, p_dev->field) : -ENODEV; \
-}
+}									\
+static DEVICE_ATTR_RO(field);
 
 #define pcmcia_device_stringattr(name, field)					\
 static ssize_t name##_show (struct device *dev, struct device_attribute *attr, char *buf)		\
 {									\
 	struct pcmcia_device *p_dev = to_pcmcia_dev(dev);		\
 	return p_dev->field ? sprintf(buf, "%s\n", p_dev->field) : -ENODEV; \
-}
+}									\
+static DEVICE_ATTR_RO(name);
 
-pcmcia_device_attr(func, socket, "0x%02x\n");
 pcmcia_device_attr(func_id, has_func_id, "0x%02x\n");
 pcmcia_device_attr(manf_id, has_manf_id, "0x%04x\n");
 pcmcia_device_attr(card_id, has_card_id, "0x%04x\n");
@@ -1010,8 +1011,16 @@ pcmcia_device_stringattr(prod_id2, prod_id[1]);
 pcmcia_device_stringattr(prod_id3, prod_id[2]);
 pcmcia_device_stringattr(prod_id4, prod_id[3]);
 
-static ssize_t pcmcia_show_resources(struct device *dev,
-				     struct device_attribute *attr, char *buf)
+static ssize_t function_show(struct device *dev, struct device_attribute *attr,
+			     char *buf)
+{
+	struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
+	return p_dev->socket ? sprintf(buf, "0x%02x\n", p_dev->func) : -ENODEV;
+}
+static DEVICE_ATTR_RO(function);
+
+static ssize_t resources_show(struct device *dev,
+			      struct device_attribute *attr, char *buf)
 {
 	struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
 	char *str = buf;
@@ -1022,8 +1031,9 @@ static ssize_t pcmcia_show_resources(struct device *dev,
 
 	return str - buf;
 }
+static DEVICE_ATTR_RO(resources);
 
-static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t pm_state_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
 
@@ -1033,8 +1043,8 @@ static ssize_t pcmcia_show_pm_state(struct device *dev, struct device_attribute
 		return sprintf(buf, "on\n");
 }
 
-static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute *attr,
-				     const char *buf, size_t count)
+static ssize_t pm_state_store(struct device *dev, struct device_attribute *attr,
+			      const char *buf, size_t count)
 {
 	struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
 	int ret = 0;
@@ -1049,7 +1059,7 @@ static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute
 
 	return ret ? ret : count;
 }
-
+static DEVICE_ATTR_RW(pm_state);
 
 static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
@@ -1072,8 +1082,9 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 				p_dev->func, p_dev->device_no,
 				hash[0], hash[1], hash[2], hash[3]);
 }
+static DEVICE_ATTR_RO(modalias);
 
-static ssize_t pcmcia_store_allow_func_id_match(struct device *dev,
+static ssize_t allow_func_id_match_store(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct pcmcia_device *p_dev = to_pcmcia_dev(dev);
@@ -1088,22 +1099,24 @@ static ssize_t pcmcia_store_allow_func_id_match(struct device *dev,
 
 	return count;
 }
-
-static struct device_attribute pcmcia_dev_attrs[] = {
-	__ATTR(function, 0444, func_show, NULL),
-	__ATTR(pm_state, 0644, pcmcia_show_pm_state, pcmcia_store_pm_state),
-	__ATTR(resources, 0444, pcmcia_show_resources, NULL),
-	__ATTR_RO(func_id),
-	__ATTR_RO(manf_id),
-	__ATTR_RO(card_id),
-	__ATTR_RO(prod_id1),
-	__ATTR_RO(prod_id2),
-	__ATTR_RO(prod_id3),
-	__ATTR_RO(prod_id4),
-	__ATTR_RO(modalias),
-	__ATTR(allow_func_id_match, 0200, NULL, pcmcia_store_allow_func_id_match),
-	__ATTR_NULL,
+static DEVICE_ATTR_WO(allow_func_id_match);
+
+static struct attribute *pcmcia_dev_attrs[] = {
+	&dev_attr_resources.attr,
+	&dev_attr_pm_state.attr,
+	&dev_attr_function.attr,
+	&dev_attr_func_id.attr,
+	&dev_attr_manf_id.attr,
+	&dev_attr_card_id.attr,
+	&dev_attr_prod_id1.attr,
+	&dev_attr_prod_id2.attr,
+	&dev_attr_prod_id3.attr,
+	&dev_attr_prod_id4.attr,
+	&dev_attr_modalias.attr,
+	&dev_attr_allow_func_id_match.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(pcmcia_dev);
 
 /* PM support, also needed for reset */
 
@@ -1389,7 +1402,7 @@ struct bus_type pcmcia_bus_type = {
 	.name = "pcmcia",
 	.uevent = pcmcia_bus_uevent,
 	.match = pcmcia_bus_match,
-	.dev_attrs = pcmcia_dev_attrs,
+	.dev_groups = pcmcia_dev_groups,
 	.probe = pcmcia_device_probe,
 	.remove = pcmcia_device_remove,
 	.suspend = pcmcia_dev_suspend,
-- 
cgit 


From 6d39c80b19073e2889dabab939fe1a09584138ed Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sun, 6 Oct 2013 23:55:47 -0700
Subject: rapidio: convert bus code to use dev_groups

The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the rapidio bus code to use the
correct field.

Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: Alexandre Bounine <alexandre.bounine@idt.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/rapidio/rio-driver.c |  2 +-
 drivers/rapidio/rio-sysfs.c  | 38 ++++++++++++++++++++++++--------------
 drivers/rapidio/rio.h        |  2 +-
 3 files changed, 26 insertions(+), 16 deletions(-)

diff --git a/drivers/rapidio/rio-driver.c b/drivers/rapidio/rio-driver.c
index 2be2d24dbecb..c9ae692d3451 100644
--- a/drivers/rapidio/rio-driver.c
+++ b/drivers/rapidio/rio-driver.c
@@ -223,7 +223,7 @@ struct device rio_bus = {
 struct bus_type rio_bus_type = {
 	.name = "rapidio",
 	.match = rio_match_bus,
-	.dev_attrs = rio_dev_attrs,
+	.dev_groups = rio_dev_groups,
 	.bus_groups = rio_bus_groups,
 	.probe = rio_device_probe,
 	.remove = rio_device_remove,
diff --git a/drivers/rapidio/rio-sysfs.c b/drivers/rapidio/rio-sysfs.c
index 795a4776cb0c..e0221c6d0cc2 100644
--- a/drivers/rapidio/rio-sysfs.c
+++ b/drivers/rapidio/rio-sysfs.c
@@ -27,6 +27,7 @@ field##_show(struct device *dev, struct device_attribute *attr, char *buf)			\
 									\
 	return sprintf(buf, format_string, rdev->field);		\
 }									\
+static DEVICE_ATTR_RO(field);
 
 rio_config_attr(did, "0x%04x\n");
 rio_config_attr(vid, "0x%04x\n");
@@ -54,6 +55,7 @@ static ssize_t routes_show(struct device *dev, struct device_attribute *attr, ch
 
 	return (str - buf);
 }
+static DEVICE_ATTR_RO(routes);
 
 static ssize_t lprev_show(struct device *dev,
 			  struct device_attribute *attr, char *buf)
@@ -63,6 +65,7 @@ static ssize_t lprev_show(struct device *dev,
 	return sprintf(buf, "%s\n",
 			(rdev->prev) ? rio_name(rdev->prev) : "root");
 }
+static DEVICE_ATTR_RO(lprev);
 
 static ssize_t lnext_show(struct device *dev,
 			  struct device_attribute *attr, char *buf)
@@ -83,6 +86,7 @@ static ssize_t lnext_show(struct device *dev,
 
 	return str - buf;
 }
+static DEVICE_ATTR_RO(lnext);
 
 static ssize_t modalias_show(struct device *dev,
 			     struct device_attribute *attr, char *buf)
@@ -92,23 +96,29 @@ static ssize_t modalias_show(struct device *dev,
 	return sprintf(buf, "rapidio:v%04Xd%04Xav%04Xad%04X\n",
 		       rdev->vid, rdev->did, rdev->asm_vid, rdev->asm_did);
 }
+static DEVICE_ATTR_RO(modalias);
+
+static struct attribute *rio_dev_attrs[] = {
+	&dev_attr_did.attr,
+	&dev_attr_vid.attr,
+	&dev_attr_device_rev.attr,
+	&dev_attr_asm_did.attr,
+	&dev_attr_asm_vid.attr,
+	&dev_attr_asm_rev.attr,
+	&dev_attr_lprev.attr,
+	&dev_attr_destid.attr,
+	&dev_attr_modalias.attr,
+	NULL,
+};
 
-struct device_attribute rio_dev_attrs[] = {
-	__ATTR_RO(did),
-	__ATTR_RO(vid),
-	__ATTR_RO(device_rev),
-	__ATTR_RO(asm_did),
-	__ATTR_RO(asm_vid),
-	__ATTR_RO(asm_rev),
-	__ATTR_RO(lprev),
-	__ATTR_RO(destid),
-	__ATTR_RO(modalias),
-	__ATTR_NULL,
+static const struct attribute_group rio_dev_group = {
+	.attrs = rio_dev_attrs,
 };
 
-static DEVICE_ATTR(routes, S_IRUGO, routes_show, NULL);
-static DEVICE_ATTR(lnext, S_IRUGO, lnext_show, NULL);
-static DEVICE_ATTR(hopcount, S_IRUGO, hopcount_show, NULL);
+const struct attribute_group *rio_dev_groups[] = {
+	&rio_dev_group,
+	NULL,
+};
 
 static ssize_t
 rio_read_config(struct file *filp, struct kobject *kobj,
diff --git a/drivers/rapidio/rio.h b/drivers/rapidio/rio.h
index 57d2ad06a816..5f99d22ad0b0 100644
--- a/drivers/rapidio/rio.h
+++ b/drivers/rapidio/rio.h
@@ -48,7 +48,7 @@ extern struct rio_mport *rio_find_mport(int mport_id);
 extern int rio_mport_scan(int mport_id);
 
 /* Structures internal to the RIO core code */
-extern struct device_attribute rio_dev_attrs[];
+extern const struct attribute_group *rio_dev_groups[];
 extern const struct attribute_group *rio_bus_groups[];
 
 #define RIO_GET_DID(size, x)	(size ? (x & 0xffff) : ((x & 0x00ff0000) >> 16))
-- 
cgit 


From 4e9072d61695abcee201591ba9515a28bcb3bd33 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sun, 6 Oct 2013 23:55:48 -0700
Subject: ssb: convert bus code to use dev_groups

The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the ssb bus code to use the
correct field.

Cc: Michael Buesch <m@bues.ch>
Cc: <netdev@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ssb/main.c | 25 ++++++++++++++-----------
 1 file changed, 14 insertions(+), 11 deletions(-)

diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index e55ddf7cd7c2..32a811d11c25 100644
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -374,7 +374,8 @@ static ssize_t \
 attrib##_show(struct device *dev, struct device_attribute *attr, char *buf) \
 { \
 	return sprintf(buf, format_string, dev_to_ssb_dev(dev)->field); \
-}
+} \
+static DEVICE_ATTR_RO(attrib);
 
 ssb_config_attr(core_num, core_index, "%u\n")
 ssb_config_attr(coreid, id.coreid, "0x%04x\n")
@@ -387,16 +388,18 @@ name_show(struct device *dev, struct device_attribute *attr, char *buf)
 	return sprintf(buf, "%s\n",
 		       ssb_core_name(dev_to_ssb_dev(dev)->id.coreid));
 }
-
-static struct device_attribute ssb_device_attrs[] = {
-	__ATTR_RO(name),
-	__ATTR_RO(core_num),
-	__ATTR_RO(coreid),
-	__ATTR_RO(vendor),
-	__ATTR_RO(revision),
-	__ATTR_RO(irq),
-	__ATTR_NULL,
+static DEVICE_ATTR_RO(name);
+
+static struct attribute *ssb_device_attrs[] = {
+	&dev_attr_name.attr,
+	&dev_attr_core_num.attr,
+	&dev_attr_coreid.attr,
+	&dev_attr_vendor.attr,
+	&dev_attr_revision.attr,
+	&dev_attr_irq.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(ssb_device);
 
 static struct bus_type ssb_bustype = {
 	.name		= "ssb",
@@ -407,7 +410,7 @@ static struct bus_type ssb_bustype = {
 	.suspend	= ssb_device_suspend,
 	.resume		= ssb_device_resume,
 	.uevent		= ssb_device_uevent,
-	.dev_attrs	= ssb_device_attrs,
+	.dev_groups	= ssb_device_groups,
 };
 
 static void ssb_buses_lock(void)
-- 
cgit 


From 85dd92686ffe774363330a6839a3fb9c78f19cf8 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sun, 6 Oct 2013 23:55:49 -0700
Subject: xenbus: convert bus code to use dev_groups

The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the xenbus code to use the
correct field.

Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: <xen-devel@lists.xenproject.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/xen/xenbus/xenbus_probe.c          | 24 ++++++++++++++++++------
 drivers/xen/xenbus/xenbus_probe.h          |  2 +-
 drivers/xen/xenbus/xenbus_probe_backend.c  |  2 +-
 drivers/xen/xenbus/xenbus_probe_frontend.c |  2 +-
 4 files changed, 21 insertions(+), 9 deletions(-)

diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c
index 38e92b770e91..3c0a74b3e9b1 100644
--- a/drivers/xen/xenbus/xenbus_probe.c
+++ b/drivers/xen/xenbus/xenbus_probe.c
@@ -384,12 +384,14 @@ static ssize_t nodename_show(struct device *dev,
 {
 	return sprintf(buf, "%s\n", to_xenbus_device(dev)->nodename);
 }
+static DEVICE_ATTR_RO(nodename);
 
 static ssize_t devtype_show(struct device *dev,
 			    struct device_attribute *attr, char *buf)
 {
 	return sprintf(buf, "%s\n", to_xenbus_device(dev)->devicetype);
 }
+static DEVICE_ATTR_RO(devtype);
 
 static ssize_t modalias_show(struct device *dev,
 			     struct device_attribute *attr, char *buf)
@@ -397,14 +399,24 @@ static ssize_t modalias_show(struct device *dev,
 	return sprintf(buf, "%s:%s\n", dev->bus->name,
 		       to_xenbus_device(dev)->devicetype);
 }
+static DEVICE_ATTR_RO(modalias);
 
-struct device_attribute xenbus_dev_attrs[] = {
-	__ATTR_RO(nodename),
-	__ATTR_RO(devtype),
-	__ATTR_RO(modalias),
-	__ATTR_NULL
+static struct attribute *xenbus_dev_attrs[] = {
+	&dev_attr_nodename.attr,
+	&dev_attr_devtype.attr,
+	&dev_attr_modalias.attr,
+	NULL,
 };
-EXPORT_SYMBOL_GPL(xenbus_dev_attrs);
+
+static const struct attribute_group xenbus_dev_group = {
+	.attrs = xenbus_dev_attrs,
+};
+
+const struct attribute_group *xenbus_dev_groups[] = {
+	&xenbus_dev_group,
+	NULL,
+};
+EXPORT_SYMBOL_GPL(xenbus_dev_groups);
 
 int xenbus_probe_node(struct xen_bus_type *bus,
 		      const char *type,
diff --git a/drivers/xen/xenbus/xenbus_probe.h b/drivers/xen/xenbus/xenbus_probe.h
index 146f857a36f8..1085ec294a19 100644
--- a/drivers/xen/xenbus/xenbus_probe.h
+++ b/drivers/xen/xenbus/xenbus_probe.h
@@ -54,7 +54,7 @@ enum xenstore_init {
 	XS_LOCAL,
 };
 
-extern struct device_attribute xenbus_dev_attrs[];
+extern const struct attribute_group *xenbus_dev_groups[];
 
 extern int xenbus_match(struct device *_dev, struct device_driver *_drv);
 extern int xenbus_dev_probe(struct device *_dev);
diff --git a/drivers/xen/xenbus/xenbus_probe_backend.c b/drivers/xen/xenbus/xenbus_probe_backend.c
index 998bbbab816b..5125dce11a60 100644
--- a/drivers/xen/xenbus/xenbus_probe_backend.c
+++ b/drivers/xen/xenbus/xenbus_probe_backend.c
@@ -200,7 +200,7 @@ static struct xen_bus_type xenbus_backend = {
 		.probe		= xenbus_dev_probe,
 		.remove		= xenbus_dev_remove,
 		.shutdown	= xenbus_dev_shutdown,
-		.dev_attrs	= xenbus_dev_attrs,
+		.dev_groups	= xenbus_dev_groups,
 	},
 };
 
diff --git a/drivers/xen/xenbus/xenbus_probe_frontend.c b/drivers/xen/xenbus/xenbus_probe_frontend.c
index 34b20bfa4e8c..129bf84c19ec 100644
--- a/drivers/xen/xenbus/xenbus_probe_frontend.c
+++ b/drivers/xen/xenbus/xenbus_probe_frontend.c
@@ -154,7 +154,7 @@ static struct xen_bus_type xenbus_frontend = {
 		.probe		= xenbus_frontend_dev_probe,
 		.remove		= xenbus_dev_remove,
 		.shutdown	= xenbus_dev_shutdown,
-		.dev_attrs	= xenbus_dev_attrs,
+		.dev_groups	= xenbus_dev_groups,
 
 		.pm		= &xenbus_pm_ops,
 	},
-- 
cgit 


From 00173146897b15b07b8be6c95dd74486e530825d Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sun, 6 Oct 2013 23:55:50 -0700
Subject: hsi: convert bus code to use dev_groups

The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the hsi code to use the
correct field.

Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hsi/hsi.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/hsi/hsi.c b/drivers/hsi/hsi.c
index 66d44581e1b1..749f7b5c8179 100644
--- a/drivers/hsi/hsi.c
+++ b/drivers/hsi/hsi.c
@@ -33,11 +33,13 @@ static ssize_t modalias_show(struct device *dev,
 {
 	return sprintf(buf, "hsi:%s\n", dev_name(dev));
 }
+static DEVICE_ATTR_RO(modalias);
 
-static struct device_attribute hsi_bus_dev_attrs[] = {
-	__ATTR_RO(modalias),
-	__ATTR_NULL,
+static struct attribute *hsi_bus_dev_attrs[] = {
+	&dev_attr_modalias.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(hsi_bus_dev);
 
 static int hsi_bus_uevent(struct device *dev, struct kobj_uevent_env *env)
 {
@@ -53,7 +55,7 @@ static int hsi_bus_match(struct device *dev, struct device_driver *driver)
 
 static struct bus_type hsi_bus_type = {
 	.name		= "hsi",
-	.dev_attrs	= hsi_bus_dev_attrs,
+	.dev_groups	= hsi_bus_dev_groups,
 	.match		= hsi_bus_match,
 	.uevent		= hsi_bus_uevent,
 };
-- 
cgit 


From fb3fed7926545e44ce36574e1b1c5cdeb018db5c Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 7 Oct 2013 18:27:35 -0700
Subject: ide: convert bus code to use dev_groups

The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the ide bus code to use the
correct field.

Acked-by: David S. Miller <davem@davemloft.net>
Cc: <linux-ide@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ide/ide-sysfs.c | 35 ++++++++++++++++++++++++++---------
 drivers/ide/ide.c       |  2 +-
 include/linux/ide.h     |  2 +-
 3 files changed, 28 insertions(+), 11 deletions(-)

diff --git a/drivers/ide/ide-sysfs.c b/drivers/ide/ide-sysfs.c
index 883ffacaf45a..84a6a9e08d64 100644
--- a/drivers/ide/ide-sysfs.c
+++ b/drivers/ide/ide-sysfs.c
@@ -25,6 +25,7 @@ static ssize_t media_show(struct device *dev, struct device_attribute *attr,
 	ide_drive_t *drive = to_ide_device(dev);
 	return sprintf(buf, "%s\n", ide_media_string(drive));
 }
+static DEVICE_ATTR_RO(media);
 
 static ssize_t drivename_show(struct device *dev, struct device_attribute *attr,
 			      char *buf)
@@ -32,6 +33,7 @@ static ssize_t drivename_show(struct device *dev, struct device_attribute *attr,
 	ide_drive_t *drive = to_ide_device(dev);
 	return sprintf(buf, "%s\n", drive->name);
 }
+static DEVICE_ATTR_RO(drivename);
 
 static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 			     char *buf)
@@ -39,6 +41,7 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 	ide_drive_t *drive = to_ide_device(dev);
 	return sprintf(buf, "ide:m-%s\n", ide_media_string(drive));
 }
+static DEVICE_ATTR_RO(modalias);
 
 static ssize_t model_show(struct device *dev, struct device_attribute *attr,
 			  char *buf)
@@ -46,6 +49,7 @@ static ssize_t model_show(struct device *dev, struct device_attribute *attr,
 	ide_drive_t *drive = to_ide_device(dev);
 	return sprintf(buf, "%s\n", (char *)&drive->id[ATA_ID_PROD]);
 }
+static DEVICE_ATTR_RO(model);
 
 static ssize_t firmware_show(struct device *dev, struct device_attribute *attr,
 			     char *buf)
@@ -53,6 +57,7 @@ static ssize_t firmware_show(struct device *dev, struct device_attribute *attr,
 	ide_drive_t *drive = to_ide_device(dev);
 	return sprintf(buf, "%s\n", (char *)&drive->id[ATA_ID_FW_REV]);
 }
+static DEVICE_ATTR_RO(firmware);
 
 static ssize_t serial_show(struct device *dev, struct device_attribute *attr,
 			   char *buf)
@@ -60,16 +65,28 @@ static ssize_t serial_show(struct device *dev, struct device_attribute *attr,
 	ide_drive_t *drive = to_ide_device(dev);
 	return sprintf(buf, "%s\n", (char *)&drive->id[ATA_ID_SERNO]);
 }
+static DEVICE_ATTR(serial, 0400, serial_show, NULL);
+
+static DEVICE_ATTR(unload_heads, 0644, ide_park_show, ide_park_store);
+
+static struct attribute *ide_attrs[] = {
+	&dev_attr_media.attr,
+	&dev_attr_drivename.attr,
+	&dev_attr_modalias.attr,
+	&dev_attr_model.attr,
+	&dev_attr_firmware.attr,
+	&dev_attr_serial.attr,
+	&dev_attr_unload_heads.attr,
+	NULL,
+};
+
+static const struct attribute_group ide_attr_group = {
+	.attrs = ide_attrs,
+};
 
-struct device_attribute ide_dev_attrs[] = {
-	__ATTR_RO(media),
-	__ATTR_RO(drivename),
-	__ATTR_RO(modalias),
-	__ATTR_RO(model),
-	__ATTR_RO(firmware),
-	__ATTR(serial, 0400, serial_show, NULL),
-	__ATTR(unload_heads, 0644, ide_park_show, ide_park_store),
-	__ATTR_NULL
+const struct attribute_group *ide_dev_groups[] = {
+	&ide_attr_group,
+	NULL,
 };
 
 static ssize_t store_delete_devices(struct device *portdev,
diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index fa896210ed7b..2ce6268a2734 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -158,7 +158,7 @@ struct bus_type ide_bus_type = {
 	.probe		= generic_ide_probe,
 	.remove		= generic_ide_remove,
 	.shutdown	= generic_ide_shutdown,
-	.dev_attrs	= ide_dev_attrs,
+	.dev_groups	= ide_dev_groups,
 	.suspend	= generic_ide_suspend,
 	.resume		= generic_ide_resume,
 };
diff --git a/include/linux/ide.h b/include/linux/ide.h
index b17974917dbf..46a14229a162 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1514,7 +1514,7 @@ static inline void ide_set_max_pio(ide_drive_t *drive)
 
 char *ide_media_string(ide_drive_t *);
 
-extern struct device_attribute ide_dev_attrs[];
+extern const struct attribute_group *ide_dev_groups[];
 extern struct bus_type ide_bus_type;
 extern struct class *ide_port_class;
 
-- 
cgit 


From 5152a5098c6b0b2341982987918ae10eb4cc3f9c Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 7 Oct 2013 18:27:36 -0700
Subject: ipack: convert bus code to use dev_groups

The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the ipack bus code to use the
correct field.

Acked-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Cc: Jens Taprogge <jens.taprogge@taprogge.org>
Cc: <industrypack-devel@lists.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/ipack/ipack.c | 22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

diff --git a/drivers/ipack/ipack.c b/drivers/ipack/ipack.c
index 6e066c53acce..d0016ba469ed 100644
--- a/drivers/ipack/ipack.c
+++ b/drivers/ipack/ipack.c
@@ -180,20 +180,28 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 
 ipack_device_attr(id_format, "0x%hhu\n");
 
-static struct device_attribute ipack_dev_attrs[] = {
-	__ATTR_RO(id),
-	__ATTR_RO(id_device),
-	__ATTR_RO(id_format),
-	__ATTR_RO(id_vendor),
-	__ATTR_RO(modalias),
+static DEVICE_ATTR_RO(id);
+static DEVICE_ATTR_RO(id_device);
+static DEVICE_ATTR_RO(id_format);
+static DEVICE_ATTR_RO(id_vendor);
+static DEVICE_ATTR_RO(modalias);
+
+static struct attribute *ipack_attrs[] = {
+	&dev_attr_id.attr,
+	&dev_attr_id_device.attr,
+	&dev_attr_id_format.attr,
+	&dev_attr_id_vendor.attr,
+	&dev_attr_modalias.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(ipack);
 
 static struct bus_type ipack_bus_type = {
 	.name      = "ipack",
 	.probe     = ipack_bus_probe,
 	.match     = ipack_bus_match,
 	.remove    = ipack_bus_remove,
-	.dev_attrs = ipack_dev_attrs,
+	.dev_groups = ipack_groups,
 	.uevent	   = ipack_uevent,
 };
 
-- 
cgit 


From 3736dab6e5e54c0f769f528f5616c335762bdac2 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 7 Oct 2013 18:27:39 -0700
Subject: virtio: convert bus code to use dev_groups

The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the virtio bus code to use the
correct field.

Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: <virtualization@lists.linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/virtio/virtio.c | 27 +++++++++++++++++++--------
 1 file changed, 19 insertions(+), 8 deletions(-)

diff --git a/drivers/virtio/virtio.c b/drivers/virtio/virtio.c
index ee59b74768d9..fed0ce198ae3 100644
--- a/drivers/virtio/virtio.c
+++ b/drivers/virtio/virtio.c
@@ -13,18 +13,24 @@ static ssize_t device_show(struct device *_d,
 	struct virtio_device *dev = dev_to_virtio(_d);
 	return sprintf(buf, "0x%04x\n", dev->id.device);
 }
+static DEVICE_ATTR_RO(device);
+
 static ssize_t vendor_show(struct device *_d,
 			   struct device_attribute *attr, char *buf)
 {
 	struct virtio_device *dev = dev_to_virtio(_d);
 	return sprintf(buf, "0x%04x\n", dev->id.vendor);
 }
+static DEVICE_ATTR_RO(vendor);
+
 static ssize_t status_show(struct device *_d,
 			   struct device_attribute *attr, char *buf)
 {
 	struct virtio_device *dev = dev_to_virtio(_d);
 	return sprintf(buf, "0x%08x\n", dev->config->get_status(dev));
 }
+static DEVICE_ATTR_RO(status);
+
 static ssize_t modalias_show(struct device *_d,
 			     struct device_attribute *attr, char *buf)
 {
@@ -32,6 +38,8 @@ static ssize_t modalias_show(struct device *_d,
 	return sprintf(buf, "virtio:d%08Xv%08X\n",
 		       dev->id.device, dev->id.vendor);
 }
+static DEVICE_ATTR_RO(modalias);
+
 static ssize_t features_show(struct device *_d,
 			     struct device_attribute *attr, char *buf)
 {
@@ -47,14 +55,17 @@ static ssize_t features_show(struct device *_d,
 	len += sprintf(buf+len, "\n");
 	return len;
 }
-static struct device_attribute virtio_dev_attrs[] = {
-	__ATTR_RO(device),
-	__ATTR_RO(vendor),
-	__ATTR_RO(status),
-	__ATTR_RO(modalias),
-	__ATTR_RO(features),
-	__ATTR_NULL
+static DEVICE_ATTR_RO(features);
+
+static struct attribute *virtio_dev_attrs[] = {
+	&dev_attr_device.attr,
+	&dev_attr_vendor.attr,
+	&dev_attr_status.attr,
+	&dev_attr_modalias.attr,
+	&dev_attr_features.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(virtio_dev);
 
 static inline int virtio_id_match(const struct virtio_device *dev,
 				  const struct virtio_device_id *id)
@@ -165,7 +176,7 @@ static int virtio_dev_remove(struct device *_d)
 static struct bus_type virtio_bus = {
 	.name  = "virtio",
 	.match = virtio_dev_match,
-	.dev_attrs = virtio_dev_attrs,
+	.dev_groups = virtio_dev_groups,
 	.uevent = virtio_uevent,
 	.probe = virtio_dev_probe,
 	.remove = virtio_dev_remove,
-- 
cgit 


From 06cf261bf4f0a731e8094b911ff78947d1e602a2 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 7 Oct 2013 18:27:40 -0700
Subject: tifm: convert bus code to use dev_groups

The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the tifm bus code to use the
correct field.

Cc: Alex Dubov <oakad@yahoo.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/tifm_core.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/misc/tifm_core.c b/drivers/misc/tifm_core.c
index 0ab7c922212c..a511b2a713b3 100644
--- a/drivers/misc/tifm_core.c
+++ b/drivers/misc/tifm_core.c
@@ -145,15 +145,17 @@ static ssize_t type_show(struct device *dev, struct device_attribute *attr,
 	struct tifm_dev *sock = container_of(dev, struct tifm_dev, dev);
 	return sprintf(buf, "%x", sock->type);
 }
+static DEVICE_ATTR_RO(type);
 
-static struct device_attribute tifm_dev_attrs[] = {
-	__ATTR(type, S_IRUGO, type_show, NULL),
-	__ATTR_NULL
+static struct attribute *tifm_dev_attrs[] = {
+	&dev_attr_type.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(tifm_dev);
 
 static struct bus_type tifm_bus_type = {
 	.name      = "tifm",
-	.dev_attrs = tifm_dev_attrs,
+	.dev_groups = tifm_dev_groups,
 	.match     = tifm_bus_match,
 	.uevent    = tifm_uevent,
 	.probe     = tifm_device_probe,
-- 
cgit 


From b785464bdbe6a98730f0984c14ec8d4cf7ec9980 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 7 Oct 2013 18:27:41 -0700
Subject: memstick: convert bus code to use dev_groups

The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the memstick bus code to use the
correct field.

Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/memstick/core/memstick.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/memstick/core/memstick.c b/drivers/memstick/core/memstick.c
index ffcb10ac4341..bbf4aea1627d 100644
--- a/drivers/memstick/core/memstick.c
+++ b/drivers/memstick/core/memstick.c
@@ -153,24 +153,24 @@ static ssize_t name##_show(struct device *dev, struct device_attribute *attr, \
 	struct memstick_dev *card = container_of(dev, struct memstick_dev,    \
 						 dev);                        \
 	return sprintf(buf, format, card->id.name);                           \
-}
+}                                                                             \
+static DEVICE_ATTR_RO(name);
 
 MEMSTICK_ATTR(type, "%02X");
 MEMSTICK_ATTR(category, "%02X");
 MEMSTICK_ATTR(class, "%02X");
 
-#define MEMSTICK_ATTR_RO(name) __ATTR(name, S_IRUGO, name##_show, NULL)
-
-static struct device_attribute memstick_dev_attrs[] = {
-	MEMSTICK_ATTR_RO(type),
-	MEMSTICK_ATTR_RO(category),
-	MEMSTICK_ATTR_RO(class),
-	__ATTR_NULL
+static struct attribute *memstick_dev_attrs[] = {
+	&dev_attr_type.attr,
+	&dev_attr_category.attr,
+	&dev_attr_class.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(memstick_dev);
 
 static struct bus_type memstick_bus_type = {
 	.name           = "memstick",
-	.dev_attrs      = memstick_dev_attrs,
+	.dev_groups	= memstick_dev_groups,
 	.match          = memstick_bus_match,
 	.uevent         = memstick_uevent,
 	.probe          = memstick_device_probe,
-- 
cgit 


From ba6857b2d49646f2d4c245ff58d95d145f380177 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 7 Oct 2013 18:27:42 -0700
Subject: i2o: convert bus code to use dev_groups

The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the i2o bus code to use the
correct field.

Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/message/i2o/core.h   |  2 +-
 drivers/message/i2o/device.c | 32 +++++++++++++++++++++-----------
 drivers/message/i2o/driver.c |  2 +-
 3 files changed, 23 insertions(+), 13 deletions(-)

diff --git a/drivers/message/i2o/core.h b/drivers/message/i2o/core.h
index cbe384fb848c..91614f11f89a 100644
--- a/drivers/message/i2o/core.h
+++ b/drivers/message/i2o/core.h
@@ -33,7 +33,7 @@ extern int __init i2o_pci_init(void);
 extern void __exit i2o_pci_exit(void);
 
 /* device */
-extern struct device_attribute i2o_device_attrs[];
+extern const struct attribute_group *i2o_device_groups[];
 
 extern void i2o_device_remove(struct i2o_device *);
 extern int i2o_device_parse_lct(struct i2o_controller *);
diff --git a/drivers/message/i2o/device.c b/drivers/message/i2o/device.c
index 4547db99f7da..98348f420b52 100644
--- a/drivers/message/i2o/device.c
+++ b/drivers/message/i2o/device.c
@@ -138,45 +138,55 @@ static void i2o_device_release(struct device *dev)
 }
 
 /**
- *	i2o_device_show_class_id - Displays class id of I2O device
+ *	class_id_show - Displays class id of I2O device
  *	@dev: device of which the class id should be displayed
  *	@attr: pointer to device attribute
  *	@buf: buffer into which the class id should be printed
  *
  *	Returns the number of bytes which are printed into the buffer.
  */
-static ssize_t i2o_device_show_class_id(struct device *dev,
-					struct device_attribute *attr,
-					char *buf)
+static ssize_t class_id_show(struct device *dev, struct device_attribute *attr,
+			     char *buf)
 {
 	struct i2o_device *i2o_dev = to_i2o_device(dev);
 
 	sprintf(buf, "0x%03x\n", i2o_dev->lct_data.class_id);
 	return strlen(buf) + 1;
 }
+static DEVICE_ATTR_RO(class_id);
 
 /**
- *	i2o_device_show_tid - Displays TID of I2O device
+ *	tid_show - Displays TID of I2O device
  *	@dev: device of which the TID should be displayed
  *	@attr: pointer to device attribute
  *	@buf: buffer into which the TID should be printed
  *
  *	Returns the number of bytes which are printed into the buffer.
  */
-static ssize_t i2o_device_show_tid(struct device *dev,
-				   struct device_attribute *attr, char *buf)
+static ssize_t tid_show(struct device *dev, struct device_attribute *attr,
+			char *buf)
 {
 	struct i2o_device *i2o_dev = to_i2o_device(dev);
 
 	sprintf(buf, "0x%03x\n", i2o_dev->lct_data.tid);
 	return strlen(buf) + 1;
 }
+static DEVICE_ATTR_RO(tid);
 
 /* I2O device attributes */
-struct device_attribute i2o_device_attrs[] = {
-	__ATTR(class_id, S_IRUGO, i2o_device_show_class_id, NULL),
-	__ATTR(tid, S_IRUGO, i2o_device_show_tid, NULL),
-	__ATTR_NULL
+static struct attribute *i2o_device_attrs[] = {
+	&dev_attr_class_id.attr,
+	&dev_attr_tid.attr,
+	NULL,
+};
+
+static const struct attribute_group i2o_device_group = {
+	.attrs = i2o_device_attrs,
+};
+
+const struct attribute_group *i2o_device_groups[] = {
+	&i2o_device_group,
+	NULL,
 };
 
 /**
diff --git a/drivers/message/i2o/driver.c b/drivers/message/i2o/driver.c
index 813eaa33fa14..b6b92d760510 100644
--- a/drivers/message/i2o/driver.c
+++ b/drivers/message/i2o/driver.c
@@ -62,7 +62,7 @@ static int i2o_bus_match(struct device *dev, struct device_driver *drv)
 struct bus_type i2o_bus_type = {
 	.name = "i2o",
 	.match = i2o_bus_match,
-	.dev_attrs = i2o_device_attrs
+	.dev_groups = i2o_device_groups,
 };
 
 /**
-- 
cgit 


From 5da5804b9c4b1cae43eb3034465366bfd3aca597 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Thu, 17 Oct 2013 01:07:30 +0530
Subject: Staging: vt6655: Fix Sparse Warning for Static Declarations

This patch fixes the following Sparse Warnings in rf.c:

drivers/staging/vt6655/rf.c:58:21: warning: symbol 'dwAL2230InitTable' was not declared. Should it be static?
drivers/staging/vt6655/rf.c:76:21: warning: symbol 'dwAL2230ChannelTable0' was not declared. Should it be static?
drivers/staging/vt6655/rf.c:93:21: warning: symbol 'dwAL2230ChannelTable1' was not declared. Should it be static?
drivers/staging/vt6655/rf.c:110:15: warning: symbol 'dwAL2230PowerTable' was not declared. Should it be static?
drivers/staging/vt6655/rf.c:180:21: warning: symbol 'dwAL7230InitTable' was not declared. Should it be static?
drivers/staging/vt6655/rf.c:203:21: warning: symbol 'dwAL7230InitTableAMode' was not declared. Should it be static?
drivers/staging/vt6655/rf.c:222:21: warning: symbol 'dwAL7230ChannelTable0' was not declared. Should it be static?
drivers/staging/vt6655/rf.c:288:21: warning: symbol 'dwAL7230ChannelTable1' was not declared. Should it be static?
drivers/staging/vt6655/rf.c:352:21: warning: symbol 'dwAL7230ChannelTable2' was not declared. Should it be static?
drivers/staging/vt6655/rf.c:431:6: warning: symbol 's_bAL7230Init' was not declared. Should it be static?
drivers/staging/vt6655/rf.c:474:6: warning: symbol 's_bAL7230SelectChannel' was not declared. Should it be static?
drivers/staging/vt6655/rf.c:634:6: warning: symbol 'RFbAL2230Init' was not declared. Should it be static?
drivers/staging/vt6655/rf.c:681:6: warning: symbol 'RFbAL2230SelectChannel' was not declared. Should it be static?

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6655/rf.c | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/vt6655/rf.c b/drivers/staging/vt6655/rf.c
index 6948984a25ab..b5fa7de802a4 100644
--- a/drivers/staging/vt6655/rf.c
+++ b/drivers/staging/vt6655/rf.c
@@ -55,7 +55,7 @@
 
 /*---------------------  Static Variables  --------------------------*/
 
-const unsigned long dwAL2230InitTable[CB_AL2230_INIT_SEQ] = {
+static const unsigned long dwAL2230InitTable[CB_AL2230_INIT_SEQ] = {
 	0x03F79000+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW, //
 	0x03333100+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW, //
 	0x01A00200+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW, //
@@ -73,7 +73,7 @@ const unsigned long dwAL2230InitTable[CB_AL2230_INIT_SEQ] = {
 	0x00580F00+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW
 };
 
-const unsigned long dwAL2230ChannelTable0[CB_MAX_CHANNEL] = {
+static const unsigned long dwAL2230ChannelTable0[CB_MAX_CHANNEL] = {
 	0x03F79000+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW, // channel = 1, Tf = 2412MHz
 	0x03F79000+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW, // channel = 2, Tf = 2417MHz
 	0x03E79000+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW, // channel = 3, Tf = 2422MHz
@@ -90,7 +90,7 @@ const unsigned long dwAL2230ChannelTable0[CB_MAX_CHANNEL] = {
 	0x03E7C000+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW  // channel = 14, Tf = 2412M
 };
 
-const unsigned long dwAL2230ChannelTable1[CB_MAX_CHANNEL] = {
+static const unsigned long dwAL2230ChannelTable1[CB_MAX_CHANNEL] = {
 	0x03333100+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW, // channel = 1, Tf = 2412MHz
 	0x0B333100+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW, // channel = 2, Tf = 2417MHz
 	0x03333100+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW, // channel = 3, Tf = 2422MHz
@@ -107,7 +107,7 @@ const unsigned long dwAL2230ChannelTable1[CB_MAX_CHANNEL] = {
 	0x06666100+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW  // channel = 14, Tf = 2412M
 };
 
-unsigned long dwAL2230PowerTable[AL2230_PWR_IDX_LEN] = {
+static unsigned long dwAL2230PowerTable[AL2230_PWR_IDX_LEN] = {
 	0x04040900+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW,
 	0x04041900+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW,
 	0x04042900+(BY_AL2230_REG_LEN<<3)+IFREGCTL_REGW,
@@ -177,7 +177,7 @@ unsigned long dwAL2230PowerTable[AL2230_PWR_IDX_LEN] = {
 //{{ RobertYu:20050104
 // 40MHz reference frequency
 // Need to Pull PLLON(PE3) low when writing channel registers through 3-wire.
-const unsigned long dwAL7230InitTable[CB_AL7230_INIT_SEQ] = {
+static const unsigned long dwAL7230InitTable[CB_AL7230_INIT_SEQ] = {
 	0x00379000+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW, // Channel1 // Need modify for 11a
 	0x13333100+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW, // Channel1 // Need modify for 11a
 	0x841FF200+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW, // Need modify for 11a: 451FE2
@@ -200,7 +200,7 @@ const unsigned long dwAL7230InitTable[CB_AL7230_INIT_SEQ] = {
 	0x1ABA8F00+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW  // Need modify for 11a: 12BACF
 };
 
-const unsigned long dwAL7230InitTableAMode[CB_AL7230_INIT_SEQ] = {
+static const unsigned long dwAL7230InitTableAMode[CB_AL7230_INIT_SEQ] = {
 	0x0FF52000+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW, // Channel184 // Need modify for 11b/g
 	0x00000100+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW, // Channel184 // Need modify for 11b/g
 	0x451FE200+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW, // Need modify for 11b/g
@@ -219,7 +219,7 @@ const unsigned long dwAL7230InitTableAMode[CB_AL7230_INIT_SEQ] = {
 	0x12BACF00+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW  // Need modify for 11b/g
 };
 
-const unsigned long dwAL7230ChannelTable0[CB_MAX_CHANNEL] = {
+static const unsigned long dwAL7230ChannelTable0[CB_MAX_CHANNEL] = {
 	0x00379000+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW, // channel =  1, Tf = 2412MHz
 	0x00379000+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW, // channel =  2, Tf = 2417MHz
 	0x00379000+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW, // channel =  3, Tf = 2422MHz
@@ -285,7 +285,7 @@ const unsigned long dwAL7230ChannelTable0[CB_MAX_CHANNEL] = {
 	0x0FF61000+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW  // channel = 165, Tf = 5825MHz (56)
 };
 
-const unsigned long dwAL7230ChannelTable1[CB_MAX_CHANNEL] = {
+static const unsigned long dwAL7230ChannelTable1[CB_MAX_CHANNEL] = {
 	0x13333100+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW, // channel =  1, Tf = 2412MHz
 	0x1B333100+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW, // channel =  2, Tf = 2417MHz
 	0x03333100+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW, // channel =  3, Tf = 2422MHz
@@ -349,7 +349,7 @@ const unsigned long dwAL7230ChannelTable1[CB_MAX_CHANNEL] = {
 	0x02AAA100+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW  // channel = 165, Tf = 5825MHz (56)
 };
 
-const unsigned long dwAL7230ChannelTable2[CB_MAX_CHANNEL] = {
+static const unsigned long dwAL7230ChannelTable2[CB_MAX_CHANNEL] = {
 	0x7FD78400+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW, // channel =  1, Tf = 2412MHz
 	0x7FD78400+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW, // channel =  2, Tf = 2417MHz
 	0x7FD78400+(BY_AL7230_REG_LEN<<3)+IFREGCTL_REGW, // channel =  3, Tf = 2422MHz
@@ -428,7 +428,7 @@ const unsigned long dwAL7230ChannelTable2[CB_MAX_CHANNEL] = {
  * Return Value: true if succeeded; false if failed.
  *
  */
-bool s_bAL7230Init(unsigned long dwIoBase)
+static bool s_bAL7230Init(unsigned long dwIoBase)
 {
 	int     ii;
 	bool bResult;
@@ -471,7 +471,7 @@ bool s_bAL7230Init(unsigned long dwIoBase)
 }
 
 // Need to Pull PLLON low when writing channel registers through 3-wire interface
-bool s_bAL7230SelectChannel(unsigned long dwIoBase, unsigned char byChannel)
+static bool s_bAL7230SelectChannel(unsigned long dwIoBase, unsigned char byChannel)
 {
 	bool bResult;
 
@@ -631,7 +631,7 @@ bool IFRFbWriteEmbedded(unsigned long dwIoBase, unsigned long dwData)
  * Return Value: true if succeeded; false if failed.
  *
  */
-bool RFbAL2230Init(unsigned long dwIoBase)
+static bool RFbAL2230Init(unsigned long dwIoBase)
 {
 	int     ii;
 	bool bResult;
@@ -678,7 +678,7 @@ bool RFbAL2230Init(unsigned long dwIoBase)
 	return bResult;
 }
 
-bool RFbAL2230SelectChannel(unsigned long dwIoBase, unsigned char byChannel)
+static bool RFbAL2230SelectChannel(unsigned long dwIoBase, unsigned char byChannel)
 {
 	bool bResult;
 
-- 
cgit 


From 1d612bd4771a50f7aa61d0d40222628af589d6f7 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Thu, 17 Oct 2013 01:10:36 +0530
Subject: Staging: vt6655: Removal of Unused Function

This patch removes unused function 'RFbShutDown' from file rf.c

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6655/rf.c | 30 ------------------------------
 1 file changed, 30 deletions(-)

diff --git a/drivers/staging/vt6655/rf.c b/drivers/staging/vt6655/rf.c
index b5fa7de802a4..ce173cc16c19 100644
--- a/drivers/staging/vt6655/rf.c
+++ b/drivers/staging/vt6655/rf.c
@@ -775,36 +775,6 @@ bool RFbInit(
 	return bResult;
 }
 
-/*
- * Description: RF ShutDown function
- *
- * Parameters:
- *  In:
- *      byBBType
- *      byRFType
- *  Out:
- *      none
- *
- * Return Value: true if succeeded; false if failed.
- *
- */
-bool RFbShutDown(
-	PSDevice  pDevice
-)
-{
-	bool bResult = true;
-
-	switch (pDevice->byRFType) {
-	case RF_AIROHA7230:
-		bResult = IFRFbWriteEmbedded(pDevice->PortOffset, 0x1ABAEF00 + (BY_AL7230_REG_LEN << 3) + IFREGCTL_REGW);
-		break;
-	default:
-		bResult = true;
-		break;
-	}
-	return bResult;
-}
-
 /*
  * Description: Select channel
  *
-- 
cgit 


From a115ee4175c3eb33f75d5ca62d417e853702c0f3 Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Wed, 16 Oct 2013 23:53:32 +0300
Subject: Staging: rtl8192u: fix functions that should not be declared extern

These functions are already marked extern in the header file

drivers/staging/rtl8192u/r819xU_phy.c:1716:13: warning: function 'InitialGainOperateWorkItemCallBack' with external linkage has definition
drivers/staging/rtl8192u/r819xU_cmdpkt.c:497:12: warning: function 'cmpk_message_handle_rx' with external linkage has definition

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/r819xU_cmdpkt.c | 4 ++--
 drivers/staging/rtl8192u/r819xU_phy.c    | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/rtl8192u/r819xU_cmdpkt.c b/drivers/staging/rtl8192u/r819xU_cmdpkt.c
index f40f9c895f56..7bdcbd39a3b2 100644
--- a/drivers/staging/rtl8192u/r819xU_cmdpkt.c
+++ b/drivers/staging/rtl8192u/r819xU_cmdpkt.c
@@ -494,8 +494,8 @@ static void cmpk_handle_tx_rate_history(struct net_device *dev, u8 *pmsg)
  *  05/06/2008		amy	Create Version 0 porting from windows code.
  *
  *---------------------------------------------------------------------------*/
-extern u32 cmpk_message_handle_rx(struct net_device *dev,
-				  struct ieee80211_rx_stats *pstats)
+u32 cmpk_message_handle_rx(struct net_device *dev,
+			   struct ieee80211_rx_stats *pstats)
 {
 	int			total_length;
 	u8			cmd_length, exe_cnt = 0;
diff --git a/drivers/staging/rtl8192u/r819xU_phy.c b/drivers/staging/rtl8192u/r819xU_phy.c
index 17ac1202c906..39cd426bc5e5 100644
--- a/drivers/staging/rtl8192u/r819xU_phy.c
+++ b/drivers/staging/rtl8192u/r819xU_phy.c
@@ -1713,7 +1713,7 @@ void InitialGain819xUsb(struct net_device *dev,	u8 Operation)
 		queue_delayed_work(priv->priv_wq, &priv->initialgain_operate_wq, 0);
 }
 
-extern void InitialGainOperateWorkItemCallBack(struct work_struct *work)
+void InitialGainOperateWorkItemCallBack(struct work_struct *work)
 {
 	struct delayed_work *dwork = container_of(work, struct delayed_work,
 						  work);
-- 
cgit 


From f1490809846f33433a610ab6e367d6de029f37da Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Wed, 16 Oct 2013 23:53:33 +0300
Subject: Staging: rtl8192u: use gfp_t instead of int

This patch fixes the following type of sparse warnings:

drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c:247:17: warning: incorrect type in argument 2 (different base types)
drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c:247:17:    expected restricted gfp_t [usertype] flags
drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c:247:17:    got int [signed] gfp_mask

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
index d5dae74ec67c..682659a749b6 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
@@ -238,7 +238,7 @@ void ieee80211_txb_free(struct ieee80211_txb *txb) {
 }
 
 struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size,
-					  int gfp_mask)
+					  gfp_t gfp_mask)
 {
 	struct ieee80211_txb *txb;
 	int i;
-- 
cgit 


From eb3057df732c304622aee77c450761746939a2dc Mon Sep 17 00:00:00 2001
From: Frantisek Hrbata <fhrbata@redhat.com>
Date: Mon, 14 Oct 2013 18:08:46 +1030
Subject: kernel: add support for init_array constructors

This adds the .init_array section as yet another section with constructors. This
is needed because gcc could add __gcov_init calls to .init_array or .ctors
section, depending on gcc (and binutils) version .

v2: - reuse mod->ctors for .init_array section for modules, because gcc uses
      .ctors or .init_array, but not both at the same time
v3: - fail to load if that does happen somehow.

Signed-off-by: Frantisek Hrbata <fhrbata@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 include/asm-generic/vmlinux.lds.h |  1 +
 kernel/module.c                   | 20 ++++++++++++++++++--
 2 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
index 83e2c31e8b00..bc2121fa9132 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -473,6 +473,7 @@
 #define KERNEL_CTORS()	. = ALIGN(8);			   \
 			VMLINUX_SYMBOL(__ctors_start) = .; \
 			*(.ctors)			   \
+			*(.init_array)			   \
 			VMLINUX_SYMBOL(__ctors_end) = .;
 #else
 #define KERNEL_CTORS()
diff --git a/kernel/module.c b/kernel/module.c
index 947105fd4cab..5c9cf84017d5 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -2708,7 +2708,7 @@ static int check_modinfo(struct module *mod, struct load_info *info, int flags)
 	return 0;
 }
 
-static void find_module_sections(struct module *mod, struct load_info *info)
+static int find_module_sections(struct module *mod, struct load_info *info)
 {
 	mod->kp = section_objs(info, "__param",
 			       sizeof(*mod->kp), &mod->num_kp);
@@ -2738,6 +2738,18 @@ static void find_module_sections(struct module *mod, struct load_info *info)
 #ifdef CONFIG_CONSTRUCTORS
 	mod->ctors = section_objs(info, ".ctors",
 				  sizeof(*mod->ctors), &mod->num_ctors);
+	if (!mod->ctors)
+		mod->ctors = section_objs(info, ".init_array",
+				sizeof(*mod->ctors), &mod->num_ctors);
+	else if (find_sec(info, ".init_array")) {
+		/*
+		 * This shouldn't happen with same compiler and binutils
+		 * building all parts of the module.
+		 */
+		printk(KERN_WARNING "%s: has both .ctors and .init_array.\n",
+		       mod->name);
+		return -EINVAL;
+	}
 #endif
 
 #ifdef CONFIG_TRACEPOINTS
@@ -2776,6 +2788,8 @@ static void find_module_sections(struct module *mod, struct load_info *info)
 
 	info->debug = section_objs(info, "__verbose",
 				   sizeof(*info->debug), &info->num_debug);
+
+	return 0;
 }
 
 static int move_module(struct module *mod, struct load_info *info)
@@ -3233,7 +3247,9 @@ static int load_module(struct load_info *info, const char __user *uargs,
 
 	/* Now we've got everything in the final locations, we can
 	 * find optional sections. */
-	find_module_sections(mod, info);
+	err = find_module_sections(mod, info);
+	if (err)
+		goto free_unload;
 
 	err = check_module_license_and_versions(mod);
 	if (err)
-- 
cgit 


From 1a8bf6eeef9fe417f90e5338a2fd7fba69c6d0e4 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 11 Oct 2013 09:03:25 -0700
Subject: netfilter: xt_socket: use sock_gen_put()

TCP listener refactoring, part 7 :

Use sock_gen_put() instead of xt_socket_put_sk() for future
SYN_RECV support.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/xt_socket.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/net/netfilter/xt_socket.c b/net/netfilter/xt_socket.c
index 3dd0e374bc2b..1ba67931eb1b 100644
--- a/net/netfilter/xt_socket.c
+++ b/net/netfilter/xt_socket.c
@@ -35,15 +35,6 @@
 #include <net/netfilter/nf_conntrack.h>
 #endif
 
-static void
-xt_socket_put_sk(struct sock *sk)
-{
-	if (sk->sk_state == TCP_TIME_WAIT)
-		inet_twsk_put(inet_twsk(sk));
-	else
-		sock_put(sk);
-}
-
 static int
 extract_icmp4_fields(const struct sk_buff *skb,
 		    u8 *protocol,
@@ -216,7 +207,7 @@ socket_match(const struct sk_buff *skb, struct xt_action_param *par,
 					inet_twsk(sk)->tw_transparent));
 
 		if (sk != skb->sk)
-			xt_socket_put_sk(sk);
+			sock_gen_put(sk);
 
 		if (wildcard || !transparent)
 			sk = NULL;
@@ -381,7 +372,7 @@ socket_mt6_v1_v2(const struct sk_buff *skb, struct xt_action_param *par)
 					inet_twsk(sk)->tw_transparent));
 
 		if (sk != skb->sk)
-			xt_socket_put_sk(sk);
+			sock_gen_put(sk);
 
 		if (wildcard || !transparent)
 			sk = NULL;
-- 
cgit 


From ce4ff76c15a877a62097807a35518fc808c1853c Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Wed, 25 Sep 2013 15:38:44 +0800
Subject: netfilter: ipt_CLUSTERIP: make proc directory per net namespace

Create /proc/net/ipt_CLUSTERIP directory for per net namespace.
Right now,only allow to create entries under the ipt_CLUSTERIP
in init net namespace.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/ipv4/netfilter/ipt_CLUSTERIP.c | 70 +++++++++++++++++++++++++++-----------
 1 file changed, 51 insertions(+), 19 deletions(-)

diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index 0b732efd32e2..e66b91b92843 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -28,6 +28,7 @@
 #include <linux/netfilter_ipv4/ipt_CLUSTERIP.h>
 #include <net/netfilter/nf_conntrack.h>
 #include <net/net_namespace.h>
+#include <net/netns/generic.h>
 #include <net/checksum.h>
 #include <net/ip.h>
 
@@ -64,9 +65,16 @@ static DEFINE_SPINLOCK(clusterip_lock);
 
 #ifdef CONFIG_PROC_FS
 static const struct file_operations clusterip_proc_fops;
-static struct proc_dir_entry *clusterip_procdir;
 #endif
 
+static int clusterip_net_id __read_mostly;
+
+struct clusterip_net {
+#ifdef CONFIG_PROC_FS
+	struct proc_dir_entry *procdir;
+#endif
+};
+
 static inline void
 clusterip_config_get(struct clusterip_config *c)
 {
@@ -158,6 +166,7 @@ clusterip_config_init(const struct ipt_clusterip_tgt_info *i, __be32 ip,
 			struct net_device *dev)
 {
 	struct clusterip_config *c;
+	struct clusterip_net *cn = net_generic(&init_net, clusterip_net_id);
 
 	c = kzalloc(sizeof(*c), GFP_ATOMIC);
 	if (!c)
@@ -180,7 +189,7 @@ clusterip_config_init(const struct ipt_clusterip_tgt_info *i, __be32 ip,
 		/* create proc dir entry */
 		sprintf(buffer, "%pI4", &ip);
 		c->pde = proc_create_data(buffer, S_IWUSR|S_IRUSR,
-					  clusterip_procdir,
+					  cn->procdir,
 					  &clusterip_proc_fops, c);
 		if (!c->pde) {
 			kfree(c);
@@ -698,48 +707,71 @@ static const struct file_operations clusterip_proc_fops = {
 
 #endif /* CONFIG_PROC_FS */
 
+static int clusterip_net_init(struct net *net)
+{
+#ifdef CONFIG_PROC_FS
+	struct clusterip_net *cn = net_generic(net, clusterip_net_id);
+
+	cn->procdir = proc_mkdir("ipt_CLUSTERIP", net->proc_net);
+	if (!cn->procdir) {
+		pr_err("Unable to proc dir entry\n");
+		return -ENOMEM;
+	}
+#endif /* CONFIG_PROC_FS */
+
+	return 0;
+}
+
+static void clusterip_net_exit(struct net *net)
+{
+#ifdef CONFIG_PROC_FS
+	struct clusterip_net *cn = net_generic(net, clusterip_net_id);
+	proc_remove(cn->procdir);
+#endif
+}
+
+static struct pernet_operations clusterip_net_ops = {
+	.init = clusterip_net_init,
+	.exit = clusterip_net_exit,
+	.id   = &clusterip_net_id,
+	.size = sizeof(struct clusterip_net),
+};
+
 static int __init clusterip_tg_init(void)
 {
 	int ret;
 
-	ret = xt_register_target(&clusterip_tg_reg);
+	ret = register_pernet_subsys(&clusterip_net_ops);
 	if (ret < 0)
 		return ret;
 
+	ret = xt_register_target(&clusterip_tg_reg);
+	if (ret < 0)
+		goto cleanup_subsys;
+
 	ret = nf_register_hook(&cip_arp_ops);
 	if (ret < 0)
 		goto cleanup_target;
 
-#ifdef CONFIG_PROC_FS
-	clusterip_procdir = proc_mkdir("ipt_CLUSTERIP", init_net.proc_net);
-	if (!clusterip_procdir) {
-		pr_err("Unable to proc dir entry\n");
-		ret = -ENOMEM;
-		goto cleanup_hook;
-	}
-#endif /* CONFIG_PROC_FS */
-
 	pr_info("ClusterIP Version %s loaded successfully\n",
 		CLUSTERIP_VERSION);
+
 	return 0;
 
-#ifdef CONFIG_PROC_FS
-cleanup_hook:
-	nf_unregister_hook(&cip_arp_ops);
-#endif /* CONFIG_PROC_FS */
 cleanup_target:
 	xt_unregister_target(&clusterip_tg_reg);
+cleanup_subsys:
+	unregister_pernet_subsys(&clusterip_net_ops);
 	return ret;
 }
 
 static void __exit clusterip_tg_exit(void)
 {
 	pr_info("ClusterIP Version %s unloading\n", CLUSTERIP_VERSION);
-#ifdef CONFIG_PROC_FS
-	proc_remove(clusterip_procdir);
-#endif
+
 	nf_unregister_hook(&cip_arp_ops);
 	xt_unregister_target(&clusterip_tg_reg);
+	unregister_pernet_subsys(&clusterip_net_ops);
 
 	/* Wait for completion of call_rcu_bh()'s (clusterip_config_rcu_free) */
 	rcu_barrier_bh();
-- 
cgit 


From 26a89e435462bfdde586ad062bf190cdbfe53a49 Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Wed, 25 Sep 2013 15:38:45 +0800
Subject: netfilter: ipt_CLUSTERIP: make clusterip_list per net namespace

clusterip_configs should be per net namespace, so operate
cluster in one net namespace won't affect other net
namespace. right now, only allow to operate the clusterip_configs
of init net namespace.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/ipv4/netfilter/ipt_CLUSTERIP.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index e66b91b92843..8ef3e6f38635 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -58,8 +58,6 @@ struct clusterip_config {
 	struct rcu_head rcu;
 };
 
-static LIST_HEAD(clusterip_configs);
-
 /* clusterip_lock protects the clusterip_configs list */
 static DEFINE_SPINLOCK(clusterip_lock);
 
@@ -70,6 +68,7 @@ static const struct file_operations clusterip_proc_fops;
 static int clusterip_net_id __read_mostly;
 
 struct clusterip_net {
+	struct list_head configs;
 #ifdef CONFIG_PROC_FS
 	struct proc_dir_entry *procdir;
 #endif
@@ -124,8 +123,9 @@ static struct clusterip_config *
 __clusterip_config_find(__be32 clusterip)
 {
 	struct clusterip_config *c;
+	struct clusterip_net *cn = net_generic(&init_net, clusterip_net_id);
 
-	list_for_each_entry_rcu(c, &clusterip_configs, list) {
+	list_for_each_entry_rcu(c, &cn->configs, list) {
 		if (c->clusterip == clusterip)
 			return c;
 	}
@@ -199,7 +199,7 @@ clusterip_config_init(const struct ipt_clusterip_tgt_info *i, __be32 ip,
 #endif
 
 	spin_lock_bh(&clusterip_lock);
-	list_add_rcu(&c->list, &clusterip_configs);
+	list_add_rcu(&c->list, &cn->configs);
 	spin_unlock_bh(&clusterip_lock);
 
 	return c;
@@ -709,9 +709,11 @@ static const struct file_operations clusterip_proc_fops = {
 
 static int clusterip_net_init(struct net *net)
 {
-#ifdef CONFIG_PROC_FS
 	struct clusterip_net *cn = net_generic(net, clusterip_net_id);
 
+	INIT_LIST_HEAD(&cn->configs);
+
+#ifdef CONFIG_PROC_FS
 	cn->procdir = proc_mkdir("ipt_CLUSTERIP", net->proc_net);
 	if (!cn->procdir) {
 		pr_err("Unable to proc dir entry\n");
-- 
cgit 


From f1e8077f490cff4253b197154bf2affaa0ca08e3 Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Wed, 25 Sep 2013 15:38:46 +0800
Subject: netfilter: ipt_CLUSTERIP: make clusterip_lock per net namespace

this lock is used for protecting clusterip_configs of per
net namespace, it should be per net namespace too.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/ipv4/netfilter/ipt_CLUSTERIP.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index 8ef3e6f38635..1bf5aa3096c1 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -58,9 +58,6 @@ struct clusterip_config {
 	struct rcu_head rcu;
 };
 
-/* clusterip_lock protects the clusterip_configs list */
-static DEFINE_SPINLOCK(clusterip_lock);
-
 #ifdef CONFIG_PROC_FS
 static const struct file_operations clusterip_proc_fops;
 #endif
@@ -69,6 +66,9 @@ static int clusterip_net_id __read_mostly;
 
 struct clusterip_net {
 	struct list_head configs;
+	/* lock protects the configs list */
+	spinlock_t lock;
+
 #ifdef CONFIG_PROC_FS
 	struct proc_dir_entry *procdir;
 #endif
@@ -99,10 +99,12 @@ clusterip_config_put(struct clusterip_config *c)
 static inline void
 clusterip_config_entry_put(struct clusterip_config *c)
 {
+	struct clusterip_net *cn = net_generic(&init_net, clusterip_net_id);
+
 	local_bh_disable();
-	if (atomic_dec_and_lock(&c->entries, &clusterip_lock)) {
+	if (atomic_dec_and_lock(&c->entries, &cn->lock)) {
 		list_del_rcu(&c->list);
-		spin_unlock(&clusterip_lock);
+		spin_unlock(&cn->lock);
 		local_bh_enable();
 
 		dev_mc_del(c->dev, c->clustermac);
@@ -198,9 +200,9 @@ clusterip_config_init(const struct ipt_clusterip_tgt_info *i, __be32 ip,
 	}
 #endif
 
-	spin_lock_bh(&clusterip_lock);
+	spin_lock_bh(&cn->lock);
 	list_add_rcu(&c->list, &cn->configs);
-	spin_unlock_bh(&clusterip_lock);
+	spin_unlock_bh(&cn->lock);
 
 	return c;
 }
@@ -713,6 +715,8 @@ static int clusterip_net_init(struct net *net)
 
 	INIT_LIST_HEAD(&cn->configs);
 
+	spin_lock_init(&cn->lock);
+
 #ifdef CONFIG_PROC_FS
 	cn->procdir = proc_mkdir("ipt_CLUSTERIP", net->proc_net);
 	if (!cn->procdir) {
-- 
cgit 


From b5ef0f85bf76986e5076cd1e0820fa4e61325772 Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Wed, 25 Sep 2013 15:38:47 +0800
Subject: netfilter: ipt_CLUSTERIP: add parameter net in
 clusterip_config_find_get

Inorder to find clusterip_config in net namespace.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/ipv4/netfilter/ipt_CLUSTERIP.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index 1bf5aa3096c1..b7fc9d5e06df 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -122,10 +122,10 @@ clusterip_config_entry_put(struct clusterip_config *c)
 }
 
 static struct clusterip_config *
-__clusterip_config_find(__be32 clusterip)
+__clusterip_config_find(struct net *net, __be32 clusterip)
 {
 	struct clusterip_config *c;
-	struct clusterip_net *cn = net_generic(&init_net, clusterip_net_id);
+	struct clusterip_net *cn = net_generic(net, clusterip_net_id);
 
 	list_for_each_entry_rcu(c, &cn->configs, list) {
 		if (c->clusterip == clusterip)
@@ -136,12 +136,12 @@ __clusterip_config_find(__be32 clusterip)
 }
 
 static inline struct clusterip_config *
-clusterip_config_find_get(__be32 clusterip, int entry)
+clusterip_config_find_get(struct net *net, __be32 clusterip, int entry)
 {
 	struct clusterip_config *c;
 
 	rcu_read_lock_bh();
-	c = __clusterip_config_find(clusterip);
+	c = __clusterip_config_find(net, clusterip);
 	if (c) {
 		if (unlikely(!atomic_inc_not_zero(&c->refcount)))
 			c = NULL;
@@ -381,7 +381,7 @@ static int clusterip_tg_check(const struct xt_tgchk_param *par)
 
 	/* FIXME: further sanity checks */
 
-	config = clusterip_config_find_get(e->ip.dst.s_addr, 1);
+	config = clusterip_config_find_get(&init_net, e->ip.dst.s_addr, 1);
 	if (!config) {
 		if (!(cipinfo->flags & CLUSTERIP_FLAG_NEW)) {
 			pr_info("no config found for %pI4, need 'new'\n",
@@ -519,7 +519,7 @@ arp_mangle(unsigned int hook,
 
 	/* if there is no clusterip configuration for the arp reply's
 	 * source ip, we don't want to mangle it */
-	c = clusterip_config_find_get(payload->src_ip, 0);
+	c = clusterip_config_find_get(&init_net, payload->src_ip, 0);
 	if (!c)
 		return NF_ACCEPT;
 
-- 
cgit 


From f58d7866018dedae7ec67e152402b8ede17ce39e Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Wed, 25 Sep 2013 15:38:48 +0800
Subject: netfilter: ipt_CLUSTERIP: create proc entry under proper
 ipt_CLUSTERIP directory

Create proc entries under the ipt_CLUSTERIP directory of proper
net namespace.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/ipv4/netfilter/ipt_CLUSTERIP.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index b7fc9d5e06df..c93dfd2821ac 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -168,7 +168,7 @@ clusterip_config_init(const struct ipt_clusterip_tgt_info *i, __be32 ip,
 			struct net_device *dev)
 {
 	struct clusterip_config *c;
-	struct clusterip_net *cn = net_generic(&init_net, clusterip_net_id);
+	struct clusterip_net *cn = net_generic(dev_net(dev), clusterip_net_id);
 
 	c = kzalloc(sizeof(*c), GFP_ATOMIC);
 	if (!c)
-- 
cgit 


From d86946d2c5b4e519ffe435c2deeb2c9436ceb04f Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Wed, 25 Sep 2013 15:38:49 +0800
Subject: netfilter: ipt_CLUSTERIP: use proper net namespace to operate
 CLUSTERIP

we can allow users in uninit net namespace to operate ipt_CLUSTERIP
now.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/ipv4/netfilter/ipt_CLUSTERIP.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index c93dfd2821ac..ecd808a93b63 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -99,7 +99,8 @@ clusterip_config_put(struct clusterip_config *c)
 static inline void
 clusterip_config_entry_put(struct clusterip_config *c)
 {
-	struct clusterip_net *cn = net_generic(&init_net, clusterip_net_id);
+	struct net *net = dev_net(c->dev);
+	struct clusterip_net *cn = net_generic(net, clusterip_net_id);
 
 	local_bh_disable();
 	if (atomic_dec_and_lock(&c->entries, &cn->lock)) {
@@ -381,7 +382,7 @@ static int clusterip_tg_check(const struct xt_tgchk_param *par)
 
 	/* FIXME: further sanity checks */
 
-	config = clusterip_config_find_get(&init_net, e->ip.dst.s_addr, 1);
+	config = clusterip_config_find_get(par->net, e->ip.dst.s_addr, 1);
 	if (!config) {
 		if (!(cipinfo->flags & CLUSTERIP_FLAG_NEW)) {
 			pr_info("no config found for %pI4, need 'new'\n",
@@ -395,7 +396,7 @@ static int clusterip_tg_check(const struct xt_tgchk_param *par)
 				return -EINVAL;
 			}
 
-			dev = dev_get_by_name(&init_net, e->ip.iniface);
+			dev = dev_get_by_name(par->net, e->ip.iniface);
 			if (!dev) {
 				pr_info("no such interface %s\n",
 					e->ip.iniface);
@@ -503,6 +504,7 @@ arp_mangle(unsigned int hook,
 	struct arphdr *arp = arp_hdr(skb);
 	struct arp_payload *payload;
 	struct clusterip_config *c;
+	struct net *net = dev_net(in ? in : out);
 
 	/* we don't care about non-ethernet and non-ipv4 ARP */
 	if (arp->ar_hrd != htons(ARPHRD_ETHER) ||
@@ -519,7 +521,7 @@ arp_mangle(unsigned int hook,
 
 	/* if there is no clusterip configuration for the arp reply's
 	 * source ip, we don't want to mangle it */
-	c = clusterip_config_find_get(&init_net, payload->src_ip, 0);
+	c = clusterip_config_find_get(net, payload->src_ip, 0);
 	if (!c)
 		return NF_ACCEPT;
 
-- 
cgit 


From cfd736adf68a2efcc069f3bd2b5ba545fd5d020c Mon Sep 17 00:00:00 2001
From: Krzysztof Hałasa <khalasa@piap.pl>
Date: Mon, 7 Oct 2013 08:33:55 -0300
Subject: [media] SOLO6x10: Fix video frame type (I/P/B)

Mask v4l2_buf.flags to indicate only I/P/B frames.

Signed-off-by: Krzysztof Ha?asa <khalasa@piap.pl>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c b/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
index 51200a3e4bd7..d582c5b84c14 100644
--- a/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
+++ b/drivers/staging/media/solo6x10/solo6x10-v4l2-enc.c
@@ -506,6 +506,7 @@ static int solo_fill_mpeg(struct solo_enc_dev *solo_enc,
 		return -EIO;
 
 	/* If this is a key frame, add extra header */
+	vb->v4l2_buf.flags &= ~(V4L2_BUF_FLAG_KEYFRAME | V4L2_BUF_FLAG_PFRAME | V4L2_BUF_FLAG_BFRAME);
 	if (!vop_type(vh)) {
 		skip = solo_enc->vop_len;
 		vb->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
-- 
cgit 


From df231f280f0051e8de05a1f31c13b2ce2a761c3f Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Wed, 16 Oct 2013 13:25:33 -0600
Subject: gpio: tegra: use new gpio_lock_as_irq() API

Whenever an IRQ is claimed or freed, call gpio_lock_as_irq() or
gpio_unlock_as_irq() on the associated GPIO, to prevent that GPIO from
being configured in a manner incompatible with an interrupt.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Javier Martinez Canillas <javier@dowhile0.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-tegra.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/drivers/gpio/gpio-tegra.c b/drivers/gpio/gpio-tegra.c
index 9a62672f1bed..cfd3b9037bc7 100644
--- a/drivers/gpio/gpio-tegra.c
+++ b/drivers/gpio/gpio-tegra.c
@@ -75,6 +75,7 @@ struct tegra_gpio_bank {
 #endif
 };
 
+static struct device *dev;
 static struct irq_domain *irq_domain;
 static void __iomem *regs;
 static u32 tegra_gpio_bank_count;
@@ -205,6 +206,7 @@ static int tegra_gpio_irq_set_type(struct irq_data *d, unsigned int type)
 	int lvl_type;
 	int val;
 	unsigned long flags;
+	int ret;
 
 	switch (type & IRQ_TYPE_SENSE_MASK) {
 	case IRQ_TYPE_EDGE_RISING:
@@ -231,6 +233,12 @@ static int tegra_gpio_irq_set_type(struct irq_data *d, unsigned int type)
 		return -EINVAL;
 	}
 
+	ret = gpio_lock_as_irq(&tegra_gpio_chip, gpio);
+	if (ret) {
+		dev_err(dev, "unable to lock Tegra GPIO %d as IRQ\n", gpio);
+		return ret;
+	}
+
 	spin_lock_irqsave(&bank->lvl_lock[port], flags);
 
 	val = tegra_gpio_readl(GPIO_INT_LVL(gpio));
@@ -251,6 +259,13 @@ static int tegra_gpio_irq_set_type(struct irq_data *d, unsigned int type)
 	return 0;
 }
 
+static void tegra_gpio_irq_shutdown(struct irq_data *d)
+{
+	int gpio = d->hwirq;
+
+	gpio_unlock_as_irq(&tegra_gpio_chip, gpio);
+}
+
 static void tegra_gpio_irq_handler(unsigned int irq, struct irq_desc *desc)
 {
 	struct tegra_gpio_bank *bank;
@@ -368,6 +383,7 @@ static struct irq_chip tegra_gpio_irq_chip = {
 	.irq_mask	= tegra_gpio_irq_mask,
 	.irq_unmask	= tegra_gpio_irq_unmask,
 	.irq_set_type	= tegra_gpio_irq_set_type,
+	.irq_shutdown	= tegra_gpio_irq_shutdown,
 #ifdef CONFIG_PM_SLEEP
 	.irq_set_wake	= tegra_gpio_irq_set_wake,
 #endif
@@ -413,6 +429,8 @@ static int tegra_gpio_probe(struct platform_device *pdev)
 	int i;
 	int j;
 
+	dev = &pdev->dev;
+
 	match = of_match_device(tegra_gpio_of_match, &pdev->dev);
 	if (!match) {
 		dev_err(&pdev->dev, "Error: No device match found\n");
-- 
cgit 


From 2028c71d54e7bd7eb4470d5968f581f9f9284406 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 8 Oct 2013 20:29:08 -0300
Subject: [media] media: Remove unnecessary semicolons

These aren't necessary after switch and while statements.

Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/common/b2c2/flexcop-sram.c         | 6 +++---
 drivers/media/dvb-frontends/cx24110.c            | 2 +-
 drivers/media/dvb-frontends/cx24123.c            | 2 +-
 drivers/media/dvb-frontends/tda8083.c            | 4 ++--
 drivers/media/i2c/soc_camera/ov9640.c            | 2 +-
 drivers/media/platform/exynos4-is/fimc-isp.c     | 2 +-
 drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v5.c  | 2 +-
 drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v6.c  | 2 +-
 drivers/media/platform/s5p-mfc/s5p_mfc_opr_v5.c  | 2 +-
 drivers/media/platform/s5p-tv/mixer_grp_layer.c  | 2 +-
 drivers/media/platform/s5p-tv/mixer_vp_layer.c   | 2 +-
 drivers/media/radio/si470x/radio-si470x-common.c | 2 +-
 drivers/media/v4l2-core/v4l2-ctrls.c             | 2 +-
 13 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/media/common/b2c2/flexcop-sram.c b/drivers/media/common/b2c2/flexcop-sram.c
index f2199e43e803..185c285f70fc 100644
--- a/drivers/media/common/b2c2/flexcop-sram.c
+++ b/drivers/media/common/b2c2/flexcop-sram.c
@@ -85,7 +85,7 @@ static void flexcop_sram_write(struct adapter *adapter, u32 bank, u32 addr, u8 *
 		while (((read_reg_dw(adapter, 0x700) & 0x80000000) != 0) && (retries > 0)) {
 			mdelay(1);
 			retries--;
-		};
+		}
 
 		if (retries == 0)
 			printk("%s: SRAM timeout\n", __func__);
@@ -110,7 +110,7 @@ static void flex_sram_read(struct adapter *adapter, u32 bank, u32 addr, u8 *buf,
 		while (((read_reg_dw(adapter, 0x700) & 0x80000000) != 0) && (retries > 0)) {
 			mdelay(1);
 			retries--;
-		};
+		}
 
 		if (retries == 0)
 			printk("%s: SRAM timeout\n", __func__);
@@ -122,7 +122,7 @@ static void flex_sram_read(struct adapter *adapter, u32 bank, u32 addr, u8 *buf,
 		while (((read_reg_dw(adapter, 0x700) & 0x80000000) != 0) && (retries > 0)) {
 			mdelay(1);
 			retries--;
-		};
+		}
 
 		if (retries == 0)
 			printk("%s: SRAM timeout\n", __func__);
diff --git a/drivers/media/dvb-frontends/cx24110.c b/drivers/media/dvb-frontends/cx24110.c
index 0cd6927e654c..95b981cd7115 100644
--- a/drivers/media/dvb-frontends/cx24110.c
+++ b/drivers/media/dvb-frontends/cx24110.c
@@ -378,7 +378,7 @@ static int cx24110_set_voltage (struct dvb_frontend* fe, fe_sec_voltage_t voltag
 		return cx24110_writereg(state,0x76,(cx24110_readreg(state,0x76)&0x3b)|0x40);
 	default:
 		return -EINVAL;
-	};
+	}
 }
 
 static int cx24110_diseqc_send_burst(struct dvb_frontend* fe, fe_sec_mini_cmd_t burst)
diff --git a/drivers/media/dvb-frontends/cx24123.c b/drivers/media/dvb-frontends/cx24123.c
index a771da3e9f99..72fb5838cae0 100644
--- a/drivers/media/dvb-frontends/cx24123.c
+++ b/drivers/media/dvb-frontends/cx24123.c
@@ -739,7 +739,7 @@ static int cx24123_set_voltage(struct dvb_frontend *fe,
 		return 0;
 	default:
 		return -EINVAL;
-	};
+	}
 
 	return 0;
 }
diff --git a/drivers/media/dvb-frontends/tda8083.c b/drivers/media/dvb-frontends/tda8083.c
index 9d08350fe4b0..69e62f42e2e1 100644
--- a/drivers/media/dvb-frontends/tda8083.c
+++ b/drivers/media/dvb-frontends/tda8083.c
@@ -189,7 +189,7 @@ static int tda8083_set_tone (struct tda8083_state* state, fe_sec_tone_mode_t ton
 		return tda8083_writereg (state, 0x29, 0x80);
 	default:
 		return -EINVAL;
-	};
+	}
 }
 
 static int tda8083_set_voltage (struct tda8083_state* state, fe_sec_voltage_t voltage)
@@ -201,7 +201,7 @@ static int tda8083_set_voltage (struct tda8083_state* state, fe_sec_voltage_t vo
 		return tda8083_writereg (state, 0x20, 0x11);
 	default:
 		return -EINVAL;
-	};
+	}
 }
 
 static int tda8083_send_diseqc_burst (struct tda8083_state* state, fe_sec_mini_cmd_t burst)
diff --git a/drivers/media/i2c/soc_camera/ov9640.c b/drivers/media/i2c/soc_camera/ov9640.c
index e968c3fdbd9e..bc74224503e7 100644
--- a/drivers/media/i2c/soc_camera/ov9640.c
+++ b/drivers/media/i2c/soc_camera/ov9640.c
@@ -371,7 +371,7 @@ static void ov9640_alter_regs(enum v4l2_mbus_pixelcode code,
 		alt->com13	= OV9640_COM13_RGB_AVG;
 		alt->com15	= OV9640_COM15_RGB_565;
 		break;
-	};
+	}
 }
 
 /* Setup registers according to resolution and color encoding */
diff --git a/drivers/media/platform/exynos4-is/fimc-isp.c b/drivers/media/platform/exynos4-is/fimc-isp.c
index d2e6cba3566d..f3c6136aa5b4 100644
--- a/drivers/media/platform/exynos4-is/fimc-isp.c
+++ b/drivers/media/platform/exynos4-is/fimc-isp.c
@@ -511,7 +511,7 @@ static int __ctrl_set_metering(struct fimc_is *is, unsigned int value)
 		break;
 	default:
 		return -EINVAL;
-	};
+	}
 
 	__is_set_isp_metering(is, IS_METERING_CONFIG_CMD, val);
 	return 0;
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v5.c b/drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v5.c
index ad4f1df0a18e..9a6efd6c1329 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v5.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v5.c
@@ -111,7 +111,7 @@ static int s5p_mfc_open_inst_cmd_v5(struct s5p_mfc_ctx *ctx)
 		break;
 	default:
 		h2r_args.arg[0] = S5P_FIMV_CODEC_NONE;
-	};
+	}
 	h2r_args.arg[1] = 0; /* no crc & no pixelcache */
 	h2r_args.arg[2] = ctx->ctx.ofs;
 	h2r_args.arg[3] = ctx->ctx.size;
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v6.c b/drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v6.c
index db796c8e7874..ec1a5947ed7d 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v6.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_cmd_v6.c
@@ -113,7 +113,7 @@ static int s5p_mfc_open_inst_cmd_v6(struct s5p_mfc_ctx *ctx)
 		break;
 	default:
 		codec_type = S5P_FIMV_CODEC_NONE_V6;
-	};
+	}
 	mfc_write(dev, codec_type, S5P_FIMV_CODEC_TYPE_V6);
 	mfc_write(dev, ctx->ctx.dma, S5P_FIMV_CONTEXT_MEM_ADDR_V6);
 	mfc_write(dev, ctx->ctx.size, S5P_FIMV_CONTEXT_MEM_SIZE_V6);
diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v5.c b/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v5.c
index 368582b091bf..58ec7bb26ebc 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v5.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_opr_v5.c
@@ -1582,7 +1582,7 @@ static int s5p_mfc_get_int_reason_v5(struct s5p_mfc_dev *dev)
 		break;
 	default:
 		reason = S5P_MFC_R2H_CMD_EMPTY;
-	};
+	}
 	return reason;
 }
 
diff --git a/drivers/media/platform/s5p-tv/mixer_grp_layer.c b/drivers/media/platform/s5p-tv/mixer_grp_layer.c
index b93a21f5aa13..74344c764daa 100644
--- a/drivers/media/platform/s5p-tv/mixer_grp_layer.c
+++ b/drivers/media/platform/s5p-tv/mixer_grp_layer.c
@@ -226,7 +226,7 @@ static void mxr_graph_fix_geometry(struct mxr_layer *layer,
 			src->width + src->x_offset, 32767);
 		src->full_height = clamp_val(src->full_height,
 			src->height + src->y_offset, 2047);
-	};
+	}
 }
 
 /* PUBLIC API */
diff --git a/drivers/media/platform/s5p-tv/mixer_vp_layer.c b/drivers/media/platform/s5p-tv/mixer_vp_layer.c
index 3d13a636877b..c9388c45ad75 100644
--- a/drivers/media/platform/s5p-tv/mixer_vp_layer.c
+++ b/drivers/media/platform/s5p-tv/mixer_vp_layer.c
@@ -197,7 +197,7 @@ static void mxr_vp_fix_geometry(struct mxr_layer *layer,
 			ALIGN(src->width + src->x_offset, 8), 8192U);
 		src->full_height = clamp(src->full_height,
 			src->height + src->y_offset, 8192U);
-	};
+	}
 }
 
 /* PUBLIC API */
diff --git a/drivers/media/radio/si470x/radio-si470x-common.c b/drivers/media/radio/si470x/radio-si470x-common.c
index 5c57e5b0f949..4a7a1cc06c3a 100644
--- a/drivers/media/radio/si470x/radio-si470x-common.c
+++ b/drivers/media/radio/si470x/radio-si470x-common.c
@@ -254,7 +254,7 @@ static unsigned int si470x_get_step(struct si470x_device *radio)
 	/* 2:  50 kHz */
 	default:
 		return 50 * 16;
-	};
+	}
 }
 
 
diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index c3f080388684..df3a67b40f00 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -583,7 +583,7 @@ const s64 const *v4l2_ctrl_get_int_menu(u32 id, u32 *len)
 	default:
 		*len = 0;
 		return NULL;
-	};
+	}
 }
 EXPORT_SYMBOL(v4l2_ctrl_get_int_menu);
 
-- 
cgit 


From 5618dd29ec3eefeb82067e330137bc17751f5364 Mon Sep 17 00:00:00 2001
From: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
Date: Thu, 10 Oct 2013 10:39:32 -0300
Subject: [media] v4l: tuner-core: fix typo

Signed-off-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/v4l2-core/tuner-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/v4l2-core/tuner-core.c b/drivers/media/v4l2-core/tuner-core.c
index ddc9379eb276..4b8a9a39d7f4 100644
--- a/drivers/media/v4l2-core/tuner-core.c
+++ b/drivers/media/v4l2-core/tuner-core.c
@@ -247,7 +247,7 @@ static const struct analog_demod_ops tuner_analog_ops = {
 /**
  * set_type - Sets the tuner type for a given device
  *
- * @c:			i2c_client descriptoy
+ * @c:			i2c_client descriptor
  * @type:		type of the tuner (e. g. tuner number)
  * @new_mode_mask:	Indicates if tuner supports TV and/or Radio
  * @new_config:		an optional parameter used by a few tuners to adjust
-- 
cgit 


From b594a75ecae0c7800265988dba90ce2ae5c418d2 Mon Sep 17 00:00:00 2001
From: Frank Schaefer <fschaefer.oss@googlemail.com>
Date: Thu, 10 Oct 2013 14:21:32 -0300
Subject: [media] v4l2-ctrls: fix typo in header file media/v4l2-ctrls.h
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 include/media/v4l2-ctrls.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/media/v4l2-ctrls.h b/include/media/v4l2-ctrls.h
index 47ada23345a1..16f7f2606516 100644
--- a/include/media/v4l2-ctrls.h
+++ b/include/media/v4l2-ctrls.h
@@ -571,7 +571,7 @@ static inline void v4l2_ctrl_lock(struct v4l2_ctrl *ctrl)
 	mutex_lock(ctrl->handler->lock);
 }
 
-/** v4l2_ctrl_lock() - Helper function to unlock the handler
+/** v4l2_ctrl_unlock() - Helper function to unlock the handler
   * associated with the control.
   * @ctrl:	The control to unlock.
   */
-- 
cgit 


From 0db3fa2741ad8371c21b3a6785416a4afc0cc1d4 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Fri, 4 Oct 2013 11:01:43 -0300
Subject: [media] cxd2820r_core: fix sparse warnings

drivers/media/dvb-frontends/cxd2820r_core.c:34:32: error: cannot size expression
drivers/media/dvb-frontends/cxd2820r_core.c:68:32: error: cannot size expression

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Antti Palosaari <crope@iki.fi>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Reviewed-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/dvb-frontends/cxd2820r_core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/dvb-frontends/cxd2820r_core.c b/drivers/media/dvb-frontends/cxd2820r_core.c
index 7ca5c69dd200..d9eeeb1dfa96 100644
--- a/drivers/media/dvb-frontends/cxd2820r_core.c
+++ b/drivers/media/dvb-frontends/cxd2820r_core.c
@@ -31,7 +31,7 @@ static int cxd2820r_wr_regs_i2c(struct cxd2820r_priv *priv, u8 i2c, u8 reg,
 		{
 			.addr = i2c,
 			.flags = 0,
-			.len = sizeof(buf),
+			.len = len + 1,
 			.buf = buf,
 		}
 	};
@@ -65,7 +65,7 @@ static int cxd2820r_rd_regs_i2c(struct cxd2820r_priv *priv, u8 i2c, u8 reg,
 		}, {
 			.addr = i2c,
 			.flags = I2C_M_RD,
-			.len = sizeof(buf),
+			.len = len,
 			.buf = buf,
 		}
 	};
-- 
cgit 


From 843e44a1347f97671c2f943c0d41f135e134bdb6 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Fri, 4 Oct 2013 11:01:44 -0300
Subject: [media] drxd_hard: fix sparse warnings

drivers/media/dvb-frontends/drxd_hard.c:1017:70: warning: Using plain integer as NULL pointer
drivers/media/dvb-frontends/drxd_hard.c:1038:69: warning: Using plain integer as NULL pointer
drivers/media/dvb-frontends/drxd_hard.c:2836:33: warning: Using plain integer as NULL pointer
drivers/media/dvb-frontends/drxd_hard.c:2972:30: warning: Using plain integer as NULL pointer

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Reviewed-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/dvb-frontends/drxd_hard.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/media/dvb-frontends/drxd_hard.c b/drivers/media/dvb-frontends/drxd_hard.c
index cbd7c921a628..959ae36403b8 100644
--- a/drivers/media/dvb-frontends/drxd_hard.c
+++ b/drivers/media/dvb-frontends/drxd_hard.c
@@ -1014,7 +1014,7 @@ static int HI_CfgCommand(struct drxd_state *state)
 		status = Write16(state, HI_RA_RAM_SRV_CMD__A,
 				 HI_RA_RAM_SRV_CMD_CONFIG, 0);
 	else
-		status = HI_Command(state, HI_RA_RAM_SRV_CMD_CONFIG, 0);
+		status = HI_Command(state, HI_RA_RAM_SRV_CMD_CONFIG, NULL);
 	mutex_unlock(&state->mutex);
 	return status;
 }
@@ -1035,7 +1035,7 @@ static int HI_ResetCommand(struct drxd_state *state)
 	status = Write16(state, HI_RA_RAM_SRV_RST_KEY__A,
 			 HI_RA_RAM_SRV_RST_KEY_ACT, 0);
 	if (status == 0)
-		status = HI_Command(state, HI_RA_RAM_SRV_CMD_RESET, 0);
+		status = HI_Command(state, HI_RA_RAM_SRV_CMD_RESET, NULL);
 	mutex_unlock(&state->mutex);
 	msleep(1);
 	return status;
@@ -2833,7 +2833,7 @@ static int drxd_init(struct dvb_frontend *fe)
 	int err = 0;
 
 /*	if (request_firmware(&state->fw, "drxd.fw", state->dev)<0) */
-	return DRXD_init(state, 0, 0);
+	return DRXD_init(state, NULL, 0);
 
 	err = DRXD_init(state, state->fw->data, state->fw->size);
 	release_firmware(state->fw);
@@ -2969,7 +2969,7 @@ struct dvb_frontend *drxd_attach(const struct drxd_config *config,
 
 	mutex_init(&state->mutex);
 
-	if (Read16(state, 0, 0, 0) < 0)
+	if (Read16(state, 0, NULL, 0) < 0)
 		goto error;
 
 	state->frontend.ops = drxd_ops;
-- 
cgit 


From b1cf2019dfc9c57d5579b03cc33f61bb4a7c32dc Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Fri, 4 Oct 2013 11:01:45 -0300
Subject: [media] drxk_hard: fix sparse warnings

drivers/media/dvb-frontends/drxk_hard.c:1086:62: warning: Using plain integer as NULL pointer
drivers/media/dvb-frontends/drxk_hard.c:2784:63: warning: Using plain integer as NULL pointer

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Reviewed-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/dvb-frontends/drxk_hard.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/dvb-frontends/drxk_hard.c b/drivers/media/dvb-frontends/drxk_hard.c
index 082014de6875..d416c15691da 100644
--- a/drivers/media/dvb-frontends/drxk_hard.c
+++ b/drivers/media/dvb-frontends/drxk_hard.c
@@ -1083,7 +1083,7 @@ static int hi_cfg_command(struct drxk_state *state)
 			 SIO_HI_RA_RAM_PAR_1_PAR1_SEC_KEY);
 	if (status < 0)
 		goto error;
-	status = hi_command(state, SIO_HI_RA_RAM_CMD_CONFIG, 0);
+	status = hi_command(state, SIO_HI_RA_RAM_CMD_CONFIG, NULL);
 	if (status < 0)
 		goto error;
 
@@ -2781,7 +2781,7 @@ static int ConfigureI2CBridge(struct drxk_state *state, bool b_enable_bridge)
 			goto error;
 	}
 
-	status = hi_command(state, SIO_HI_RA_RAM_CMD_BRDCTRL, 0);
+	status = hi_command(state, SIO_HI_RA_RAM_CMD_BRDCTRL, NULL);
 
 error:
 	if (status < 0)
-- 
cgit 


From d364016de1138591a834e5c3827f559431897c81 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Fri, 4 Oct 2013 11:01:48 -0300
Subject: [media] az6027: fix sparse warnings

drivers/media/usb/dvb-usb/az6027.c:257:23: warning: symbol 'az6027_stb0899_config' was not declared. Should it be static?
drivers/media/usb/dvb-usb/az6027.c:294:23: warning: symbol 'az6027_stb6100_config' was not declared. Should it be static?

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/dvb-usb/az6027.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/usb/dvb-usb/az6027.c b/drivers/media/usb/dvb-usb/az6027.c
index ea2d5ee86576..c11138ebf6fb 100644
--- a/drivers/media/usb/dvb-usb/az6027.c
+++ b/drivers/media/usb/dvb-usb/az6027.c
@@ -254,7 +254,7 @@ static const struct stb0899_s1_reg az6027_stb0899_s1_init_3[] = {
 
 
 
-struct stb0899_config az6027_stb0899_config = {
+static struct stb0899_config az6027_stb0899_config = {
 	.init_dev		= az6027_stb0899_s1_init_1,
 	.init_s2_demod		= stb0899_s2_init_2,
 	.init_s1_demod		= az6027_stb0899_s1_init_3,
@@ -291,7 +291,7 @@ struct stb0899_config az6027_stb0899_config = {
 	.tuner_set_rfsiggain	= NULL,
 };
 
-struct stb6100_config az6027_stb6100_config = {
+static struct stb6100_config az6027_stb6100_config = {
 	.tuner_address	= 0xc0,
 	.refclock	= 27000000,
 };
-- 
cgit 


From 1668844ee642ed5734fc3e7ab5d7746ef8661961 Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Fri, 4 Oct 2013 11:01:52 -0300
Subject: [media] siano: fix sparse warnings

drivers/media/common/siano/smsdvb-main.c:47:5: warning: symbol 'sms_to_guard_interval_table' was not declared. Should it be static?
drivers/media/common/siano/smsdvb-main.c:54:5: warning: symbol 'sms_to_code_rate_table' was not declared. Should it be static?
drivers/media/common/siano/smsdvb-main.c:63:5: warning: symbol 'sms_to_hierarchy_table' was not declared. Should it be static?
drivers/media/common/siano/smsdvb-main.c:70:5: warning: symbol 'sms_to_modulation_table' was not declared. Should it be static?
drivers/media/common/siano/smscoreapi.c:925:35: warning: cast to restricted __le32
drivers/media/common/siano/smscoreapi.c:926:28: warning: cast to restricted __le32

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/common/siano/smscoreapi.c  | 4 ++--
 drivers/media/common/siano/smsdvb-main.c | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/media/common/siano/smscoreapi.c b/drivers/media/common/siano/smscoreapi.c
index acf39ad9b4f5..050984c5b1e3 100644
--- a/drivers/media/common/siano/smscoreapi.c
+++ b/drivers/media/common/siano/smscoreapi.c
@@ -922,8 +922,8 @@ static int smscore_load_firmware_family2(struct smscore_device_t *coredev,
 	u32 i, *ptr;
 	u8 *payload = firmware->payload;
 	int rc = 0;
-	firmware->start_address = le32_to_cpu(firmware->start_address);
-	firmware->length = le32_to_cpu(firmware->length);
+	firmware->start_address = le32_to_cpup((__le32 *)&firmware->start_address);
+	firmware->length = le32_to_cpup((__le32 *)&firmware->length);
 
 	mem_address = firmware->start_address;
 
diff --git a/drivers/media/common/siano/smsdvb-main.c b/drivers/media/common/siano/smsdvb-main.c
index 63676a8b024c..85151efdd94c 100644
--- a/drivers/media/common/siano/smsdvb-main.c
+++ b/drivers/media/common/siano/smsdvb-main.c
@@ -44,14 +44,14 @@ module_param_named(debug, sms_dbg, int, 0644);
 MODULE_PARM_DESC(debug, "set debug level (info=1, adv=2 (or-able))");
 
 
-u32 sms_to_guard_interval_table[] = {
+static u32 sms_to_guard_interval_table[] = {
 	[0] = GUARD_INTERVAL_1_32,
 	[1] = GUARD_INTERVAL_1_16,
 	[2] = GUARD_INTERVAL_1_8,
 	[3] = GUARD_INTERVAL_1_4,
 };
 
-u32 sms_to_code_rate_table[] = {
+static u32 sms_to_code_rate_table[] = {
 	[0] = FEC_1_2,
 	[1] = FEC_2_3,
 	[2] = FEC_3_4,
@@ -60,14 +60,14 @@ u32 sms_to_code_rate_table[] = {
 };
 
 
-u32 sms_to_hierarchy_table[] = {
+static u32 sms_to_hierarchy_table[] = {
 	[0] = HIERARCHY_NONE,
 	[1] = HIERARCHY_1,
 	[2] = HIERARCHY_2,
 	[3] = HIERARCHY_4,
 };
 
-u32 sms_to_modulation_table[] = {
+static u32 sms_to_modulation_table[] = {
 	[0] = QPSK,
 	[1] = QAM_16,
 	[2] = QAM_64,
-- 
cgit 


From 0798ec69b8f622988f3de76a684936fafc8fd440 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 03:05:11 -0300
Subject: [media] radio-si4713: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag
It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/radio/si4713-i2c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/radio/si4713-i2c.c b/drivers/media/radio/si4713-i2c.c
index fe160882ee10..9ec48ccbcf0b 100644
--- a/drivers/media/radio/si4713-i2c.c
+++ b/drivers/media/radio/si4713-i2c.c
@@ -1456,7 +1456,7 @@ static int si4713_probe(struct i2c_client *client,
 
 	if (client->irq) {
 		rval = request_irq(client->irq,
-			si4713_handler, IRQF_TRIGGER_FALLING | IRQF_DISABLED,
+			si4713_handler, IRQF_TRIGGER_FALLING,
 			client->name, sdev);
 		if (rval < 0) {
 			v4l2_err(&sdev->sd, "Could not request IRQ\n");
-- 
cgit 


From 59963b9498b589064a3f1a1017eb114cdd9b3c32 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 05:32:05 -0300
Subject: [media] pci: cx88-alsa: Use module_pci_driver

module_pci_driver removes some boilerplate and makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/cx88/cx88-alsa.c | 25 +------------------------
 1 file changed, 1 insertion(+), 24 deletions(-)

diff --git a/drivers/media/pci/cx88/cx88-alsa.c b/drivers/media/pci/cx88/cx88-alsa.c
index aba5b1c649e6..4a3f96ee3147 100644
--- a/drivers/media/pci/cx88/cx88-alsa.c
+++ b/drivers/media/pci/cx88/cx88-alsa.c
@@ -951,27 +951,4 @@ static struct pci_driver cx88_audio_pci_driver = {
 	.remove   = cx88_audio_finidev,
 };
 
-/****************************************************************************
-				LINUX MODULE INIT
- ****************************************************************************/
-
-/*
- * module init
- */
-static int __init cx88_audio_init(void)
-{
-	printk(KERN_INFO "cx2388x alsa driver version %s loaded\n",
-	       CX88_VERSION);
-	return pci_register_driver(&cx88_audio_pci_driver);
-}
-
-/*
- * module remove
- */
-static void __exit cx88_audio_fini(void)
-{
-	pci_unregister_driver(&cx88_audio_pci_driver);
-}
-
-module_init(cx88_audio_init);
-module_exit(cx88_audio_fini);
+module_pci_driver(cx88_audio_pci_driver);
-- 
cgit 


From 38b25adce8e5734aab4bb2eb168ee26d33186c7a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 05:32:06 -0300
Subject: [media] pci: cx88-mpeg: Use module_pci_driver

module_pci_driver removes some boilerplate and makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/cx88/cx88-mpeg.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/media/pci/cx88/cx88-mpeg.c b/drivers/media/pci/cx88/cx88-mpeg.c
index 2d3507eb4897..e31a75fefbdf 100644
--- a/drivers/media/pci/cx88/cx88-mpeg.c
+++ b/drivers/media/pci/cx88/cx88-mpeg.c
@@ -903,20 +903,8 @@ static struct pci_driver cx8802_pci_driver = {
 	.remove   = cx8802_remove,
 };
 
-static int __init cx8802_init(void)
-{
-	printk(KERN_INFO "cx88/2: cx2388x MPEG-TS Driver Manager version %s loaded\n",
-	       CX88_VERSION);
-	return pci_register_driver(&cx8802_pci_driver);
-}
-
-static void __exit cx8802_fini(void)
-{
-	pci_unregister_driver(&cx8802_pci_driver);
-}
+module_pci_driver(cx8802_pci_driver);
 
-module_init(cx8802_init);
-module_exit(cx8802_fini);
 EXPORT_SYMBOL(cx8802_buf_prepare);
 EXPORT_SYMBOL(cx8802_buf_queue);
 EXPORT_SYMBOL(cx8802_cancel_buffers);
-- 
cgit 


From 06333e0aca2e372f5ee78c64a5e794588831ffb8 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 05:32:07 -0300
Subject: [media] pci: cx88-video: Use module_pci_driver

module_pci_driver removes some boilerplate and makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/cx88/cx88-video.c | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
index ecf21d9f1f34..356725ce608d 100644
--- a/drivers/media/pci/cx88/cx88-video.c
+++ b/drivers/media/pci/cx88/cx88-video.c
@@ -2039,17 +2039,4 @@ static struct pci_driver cx8800_pci_driver = {
 #endif
 };
 
-static int __init cx8800_init(void)
-{
-	printk(KERN_INFO "cx88/0: cx2388x v4l2 driver version %s loaded\n",
-	       CX88_VERSION);
-	return pci_register_driver(&cx8800_pci_driver);
-}
-
-static void __exit cx8800_fini(void)
-{
-	pci_unregister_driver(&cx8800_pci_driver);
-}
-
-module_init(cx8800_init);
-module_exit(cx8800_fini);
+module_pci_driver(cx8800_pci_driver);
-- 
cgit 


From d441a4aaae61cf1ae27ec8f59f798701e2769f39 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 05:36:13 -0300
Subject: [media] pci: flexcop: Remove redundant pci_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/b2c2/flexcop-pci.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/media/pci/b2c2/flexcop-pci.c b/drivers/media/pci/b2c2/flexcop-pci.c
index 447afbd904a4..8b5e0b3a92a0 100644
--- a/drivers/media/pci/b2c2/flexcop-pci.c
+++ b/drivers/media/pci/b2c2/flexcop-pci.c
@@ -319,7 +319,6 @@ static int flexcop_pci_init(struct flexcop_pci *fc_pci)
 
 err_pci_iounmap:
 	pci_iounmap(fc_pci->pdev, fc_pci->io_mem);
-	pci_set_drvdata(fc_pci->pdev, NULL);
 err_pci_release_regions:
 	pci_release_regions(fc_pci->pdev);
 err_pci_disable_device:
@@ -332,7 +331,6 @@ static void flexcop_pci_exit(struct flexcop_pci *fc_pci)
 	if (fc_pci->init_state & FC_PCI_INIT) {
 		free_irq(fc_pci->pdev->irq, fc_pci);
 		pci_iounmap(fc_pci->pdev, fc_pci->io_mem);
-		pci_set_drvdata(fc_pci->pdev, NULL);
 		pci_release_regions(fc_pci->pdev);
 		pci_disable_device(fc_pci->pdev);
 	}
-- 
cgit 


From c0d4021f6ca04061f5b17a1468eed666ebe43e67 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 05:36:14 -0300
Subject: [media] pci: cx88: Remove redundant pci_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/cx88/cx88-alsa.c  | 2 --
 drivers/media/pci/cx88/cx88-mpeg.c  | 1 -
 drivers/media/pci/cx88/cx88-video.c | 1 -
 3 files changed, 4 deletions(-)

diff --git a/drivers/media/pci/cx88/cx88-alsa.c b/drivers/media/pci/cx88/cx88-alsa.c
index 4a3f96ee3147..11d069295032 100644
--- a/drivers/media/pci/cx88/cx88-alsa.c
+++ b/drivers/media/pci/cx88/cx88-alsa.c
@@ -935,8 +935,6 @@ static void cx88_audio_finidev(struct pci_dev *pci)
 
 	snd_card_free((void *)card);
 
-	pci_set_drvdata(pci, NULL);
-
 	devno--;
 }
 
diff --git a/drivers/media/pci/cx88/cx88-mpeg.c b/drivers/media/pci/cx88/cx88-mpeg.c
index e31a75fefbdf..684eff57717f 100644
--- a/drivers/media/pci/cx88/cx88-mpeg.c
+++ b/drivers/media/pci/cx88/cx88-mpeg.c
@@ -520,7 +520,6 @@ static void cx8802_fini_common(struct cx8802_dev *dev)
 
 	/* unregister stuff */
 	free_irq(dev->pci->irq, dev);
-	pci_set_drvdata(dev->pci, NULL);
 
 	/* free memory */
 	btcx_riscmem_free(dev->pci,&dev->mpegq.stopper);
diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
index 356725ce608d..1aed764a35dd 100644
--- a/drivers/media/pci/cx88/cx88-video.c
+++ b/drivers/media/pci/cx88/cx88-video.c
@@ -1922,7 +1922,6 @@ static void cx8800_finidev(struct pci_dev *pci_dev)
 
 	free_irq(pci_dev->irq, dev);
 	cx8800_unregister_video(dev);
-	pci_set_drvdata(pci_dev, NULL);
 
 	/* free memory */
 	btcx_riscmem_free(dev->pci,&dev->vidq.stopper);
-- 
cgit 


From 3982ccd2b3c455e75b58a01505e0f55bcc686947 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 05:36:15 -0300
Subject: [media] pci: dm1105: Remove redundant pci_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/dm1105/dm1105.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/media/pci/dm1105/dm1105.c b/drivers/media/pci/dm1105/dm1105.c
index ab797fe466d2..e985e3b0f647 100644
--- a/drivers/media/pci/dm1105/dm1105.c
+++ b/drivers/media/pci/dm1105/dm1105.c
@@ -1178,7 +1178,6 @@ err_pci_release_regions:
 err_pci_disable_device:
 	pci_disable_device(pdev);
 err_kfree:
-	pci_set_drvdata(pdev, NULL);
 	kfree(dev);
 	return ret;
 }
@@ -1211,7 +1210,6 @@ static void dm1105_remove(struct pci_dev *pdev)
 	pci_iounmap(pdev, dev->io_mem);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 	dm1105_devcount--;
 	kfree(dev);
 }
-- 
cgit 


From 593781e48d65646f9752540405c2ccbc908a7ac6 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 05:36:16 -0300
Subject: [media] pci: mantis: Remove redundant pci_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/mantis/mantis_pci.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/media/pci/mantis/mantis_pci.c b/drivers/media/pci/mantis/mantis_pci.c
index a846036ea022..9e89e045213a 100644
--- a/drivers/media/pci/mantis/mantis_pci.c
+++ b/drivers/media/pci/mantis/mantis_pci.c
@@ -143,7 +143,6 @@ fail1:
 
 fail0:
 	dprintk(MANTIS_ERROR, 1, "ERROR: <%d> exiting", ret);
-	pci_set_drvdata(pdev, NULL);
 	return ret;
 }
 EXPORT_SYMBOL_GPL(mantis_pci_init);
@@ -161,7 +160,6 @@ void mantis_pci_exit(struct mantis_pci *mantis)
 	}
 
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 }
 EXPORT_SYMBOL_GPL(mantis_pci_exit);
 
-- 
cgit 


From 1e1159bb97cf4191849b4b03f77ab32977c2ece6 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 05:36:17 -0300
Subject: [media] pci: pluto2: Remove redundant pci_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/pluto2/pluto2.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/media/pci/pluto2/pluto2.c b/drivers/media/pci/pluto2/pluto2.c
index 493828500055..8164d74b46a4 100644
--- a/drivers/media/pci/pluto2/pluto2.c
+++ b/drivers/media/pci/pluto2/pluto2.c
@@ -736,7 +736,6 @@ err_pci_release_regions:
 err_pci_disable_device:
 	pci_disable_device(pdev);
 err_kfree:
-	pci_set_drvdata(pdev, NULL);
 	kfree(pluto);
 	goto out;
 }
@@ -765,7 +764,6 @@ static void pluto2_remove(struct pci_dev *pdev)
 	pci_iounmap(pdev, pluto->io_mem);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 	kfree(pluto);
 }
 
-- 
cgit 


From a508db8705ec997092d07231b8aa3c53e348752e Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 05:36:18 -0300
Subject: [media] pci: pt1: Remove redundant pci_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/pt1/pt1.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/media/pci/pt1/pt1.c b/drivers/media/pci/pt1/pt1.c
index 75ce14229e03..db887b0c37b1 100644
--- a/drivers/media/pci/pt1/pt1.c
+++ b/drivers/media/pci/pt1/pt1.c
@@ -1076,7 +1076,6 @@ static void pt1_remove(struct pci_dev *pdev)
 	pt1_update_power(pt1);
 	pt1_cleanup_adapters(pt1);
 	i2c_del_adapter(&pt1->i2c_adap);
-	pci_set_drvdata(pdev, NULL);
 	kfree(pt1);
 	pci_iounmap(pdev, regs);
 	pci_release_regions(pdev);
@@ -1198,7 +1197,6 @@ err_i2c_del_adapter:
 err_pt1_cleanup_adapters:
 	pt1_cleanup_adapters(pt1);
 err_kfree:
-	pci_set_drvdata(pdev, NULL);
 	kfree(pt1);
 err_pci_iounmap:
 	pci_iounmap(pdev, regs);
-- 
cgit 


From 7a409ebaec532a1c1572f677fad9b58f007b43d7 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 05:36:19 -0300
Subject: [media] pci: saa7164: Remove redundant pci_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/saa7164/saa7164-core.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/media/pci/saa7164/saa7164-core.c b/drivers/media/pci/saa7164/saa7164-core.c
index d37ee37aaefe..41adf260d13b 100644
--- a/drivers/media/pci/saa7164/saa7164-core.c
+++ b/drivers/media/pci/saa7164/saa7164-core.c
@@ -1439,7 +1439,6 @@ static void saa7164_finidev(struct pci_dev *pci_dev)
 
 	/* unregister stuff */
 	free_irq(pci_dev->irq, dev);
-	pci_set_drvdata(pci_dev, NULL);
 
 	mutex_lock(&devlist);
 	list_del(&dev->devlist);
-- 
cgit 


From b17a87be20efbeef05bec0f41807004229f2991f Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 05:36:20 -0300
Subject: [media] pci: bt878: Remove redundant pci_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/bt8xx/bt878.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/media/pci/bt8xx/bt878.c b/drivers/media/pci/bt8xx/bt878.c
index 66eb0baab0e9..2bd24839a2ae 100644
--- a/drivers/media/pci/bt8xx/bt878.c
+++ b/drivers/media/pci/bt8xx/bt878.c
@@ -563,7 +563,6 @@ static void bt878_remove(struct pci_dev *pci_dev)
 	bt->shutdown = 1;
 	bt878_mem_free(bt);
 
-	pci_set_drvdata(pci_dev, NULL);
 	pci_disable_device(pci_dev);
 	return;
 }
-- 
cgit 


From ec9bdd22db09df09d8775d13a0b9ff995ac87026 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 05:36:21 -0300
Subject: [media] pci: ngene: Remove redundant pci_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/ngene/ngene-core.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/media/pci/ngene/ngene-core.c b/drivers/media/pci/ngene/ngene-core.c
index 37ebc42392ad..8402ed6d886e 100644
--- a/drivers/media/pci/ngene/ngene-core.c
+++ b/drivers/media/pci/ngene/ngene-core.c
@@ -1648,7 +1648,6 @@ void ngene_remove(struct pci_dev *pdev)
 		cxd_detach(dev);
 	ngene_stop(dev);
 	ngene_release_buffers(dev);
-	pci_set_drvdata(pdev, NULL);
 	pci_disable_device(pdev);
 }
 
@@ -1702,6 +1701,5 @@ fail1:
 	ngene_release_buffers(dev);
 fail0:
 	pci_disable_device(pci_dev);
-	pci_set_drvdata(pci_dev, NULL);
 	return stat;
 }
-- 
cgit 


From 1f61d41585f8a7a52d67fd3d6aa4aa6db75f360c Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Sun, 22 Sep 2013 22:44:35 -0300
Subject: [media] saa7146: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/common/saa7146/saa7146_core.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/media/common/saa7146/saa7146_core.c b/drivers/media/common/saa7146/saa7146_core.c
index bb6ee5191eb1..2c86f1a5823d 100644
--- a/drivers/media/common/saa7146/saa7146_core.c
+++ b/drivers/media/common/saa7146/saa7146_core.c
@@ -524,8 +524,6 @@ static void saa7146_remove_one(struct pci_dev *pdev)
 	DEB_EE("dev:%p\n", dev);
 
 	dev->ext->detach(dev);
-	/* Zero the PCI drvdata after use. */
-	pci_set_drvdata(pdev, NULL);
 
 	/* shut down all video dma transfers */
 	saa7146_write(dev, MC1, 0x00ff0000);
-- 
cgit 


From 256d013a9bcc9a39b2e4b34ab19219bd054cf270 Mon Sep 17 00:00:00 2001
From: Alexey Khoroshilov <khoroshilov@ispras.ru>
Date: Mon, 7 Oct 2013 18:06:04 -0300
Subject: [media] cx231xx: fix double free and leaks on failure path in
 cx231xx_usb_probe()

There are numerous issues in error handling code of cx231xx initialization.
Double free (when cx231xx_init_dev() calls kfree(dev) via cx231xx_release_resources()
and then cx231xx_usb_probe() does the same) and memory leaks
(e.g. usb_get_dev() before (ifnum != 1) check in cx231xx_usb_probe())
are just a few of them.
The patch fixes the issues in cx231xx_usb_probe() and cx231xx_init_dev()
by moving usb_get_dev(interface_to_usbdev(interface)) below in code and
implementing proper error handling.
Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/cx231xx/cx231xx-cards.c | 110 ++++++++++++++++--------------
 1 file changed, 57 insertions(+), 53 deletions(-)

diff --git a/drivers/media/usb/cx231xx/cx231xx-cards.c b/drivers/media/usb/cx231xx/cx231xx-cards.c
index a384f80f595e..e9d017bea377 100644
--- a/drivers/media/usb/cx231xx/cx231xx-cards.c
+++ b/drivers/media/usb/cx231xx/cx231xx-cards.c
@@ -978,7 +978,6 @@ static int cx231xx_init_dev(struct cx231xx *dev, struct usb_device *udev,
 			    int minor)
 {
 	int retval = -ENOMEM;
-	int errCode;
 	unsigned int maxh, maxw;
 
 	dev->udev = udev;
@@ -1014,8 +1013,8 @@ static int cx231xx_init_dev(struct cx231xx *dev, struct usb_device *udev,
 	/* Cx231xx pre card setup */
 	cx231xx_pre_card_setup(dev);
 
-	errCode = cx231xx_config(dev);
-	if (errCode) {
+	retval = cx231xx_config(dev);
+	if (retval) {
 		cx231xx_errdev("error configuring device\n");
 		return -ENOMEM;
 	}
@@ -1024,12 +1023,11 @@ static int cx231xx_init_dev(struct cx231xx *dev, struct usb_device *udev,
 	dev->norm = dev->board.norm;
 
 	/* register i2c bus */
-	errCode = cx231xx_dev_init(dev);
-	if (errCode < 0) {
-		cx231xx_dev_uninit(dev);
+	retval = cx231xx_dev_init(dev);
+	if (retval) {
 		cx231xx_errdev("%s: cx231xx_i2c_register - errCode [%d]!\n",
-			       __func__, errCode);
-		return errCode;
+			       __func__, retval);
+		goto err_dev_init;
 	}
 
 	/* Do board specific init */
@@ -1047,11 +1045,11 @@ static int cx231xx_init_dev(struct cx231xx *dev, struct usb_device *udev,
 	dev->interlaced = 0;
 	dev->video_input = 0;
 
-	errCode = cx231xx_config(dev);
-	if (errCode < 0) {
+	retval = cx231xx_config(dev);
+	if (retval) {
 		cx231xx_errdev("%s: cx231xx_config - errCode [%d]!\n",
-			       __func__, errCode);
-		return errCode;
+			       __func__, retval);
+		goto err_dev_init;
 	}
 
 	/* init video dma queues */
@@ -1075,9 +1073,9 @@ static int cx231xx_init_dev(struct cx231xx *dev, struct usb_device *udev,
 	}
 
 	retval = cx231xx_register_analog_devices(dev);
-	if (retval < 0) {
-		cx231xx_release_resources(dev);
-		return retval;
+	if (retval) {
+		cx231xx_release_analog_resources(dev);
+		goto err_analog;
 	}
 
 	cx231xx_ir_init(dev);
@@ -1085,6 +1083,11 @@ static int cx231xx_init_dev(struct cx231xx *dev, struct usb_device *udev,
 	cx231xx_init_extension(dev);
 
 	return 0;
+err_analog:
+	cx231xx_remove_from_devlist(dev);
+err_dev_init:
+	cx231xx_dev_uninit(dev);
+	return retval;
 }
 
 #if defined(CONFIG_MODULES) && defined(MODULE)
@@ -1132,7 +1135,6 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 	char *speed;
 	struct usb_interface_assoc_descriptor *assoc_desc;
 
-	udev = usb_get_dev(interface_to_usbdev(interface));
 	ifnum = interface->altsetting[0].desc.bInterfaceNumber;
 
 	/*
@@ -1161,6 +1163,8 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 		return -ENOMEM;
 	}
 
+	udev = usb_get_dev(interface_to_usbdev(interface));
+
 	snprintf(dev->name, 29, "cx231xx #%d", nr);
 	dev->devno = nr;
 	dev->model = id->driver_info;
@@ -1223,10 +1227,8 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 	if (assoc_desc->bFirstInterface != ifnum) {
 		cx231xx_err(DRIVER_NAME ": Not found "
 			    "matching IAD interface\n");
-		clear_bit(dev->devno, &cx231xx_devused);
-		kfree(dev);
-		dev = NULL;
-		return -ENODEV;
+		retval = -ENODEV;
+		goto err_if;
 	}
 
 	cx231xx_info("registering interface %d\n", ifnum);
@@ -1242,22 +1244,13 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 	retval = v4l2_device_register(&interface->dev, &dev->v4l2_dev);
 	if (retval) {
 		cx231xx_errdev("v4l2_device_register failed\n");
-		clear_bit(dev->devno, &cx231xx_devused);
-		kfree(dev);
-		dev = NULL;
-		return -EIO;
+		retval = -EIO;
+		goto err_v4l2;
 	}
 	/* allocate device struct */
 	retval = cx231xx_init_dev(dev, udev, nr);
-	if (retval) {
-		clear_bit(dev->devno, &cx231xx_devused);
-		v4l2_device_unregister(&dev->v4l2_dev);
-		kfree(dev);
-		dev = NULL;
-		usb_set_intfdata(interface, NULL);
-
-		return retval;
-	}
+	if (retval)
+		goto err_init;
 
 	/* compute alternate max packet sizes for video */
 	uif = udev->actconfig->interface[dev->current_pcb_config.
@@ -1275,11 +1268,8 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 
 	if (dev->video_mode.alt_max_pkt_size == NULL) {
 		cx231xx_errdev("out of memory!\n");
-		clear_bit(dev->devno, &cx231xx_devused);
-		v4l2_device_unregister(&dev->v4l2_dev);
-		kfree(dev);
-		dev = NULL;
-		return -ENOMEM;
+		retval = -ENOMEM;
+		goto err_video_alt;
 	}
 
 	for (i = 0; i < dev->video_mode.num_alt; i++) {
@@ -1309,11 +1299,8 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 
 	if (dev->vbi_mode.alt_max_pkt_size == NULL) {
 		cx231xx_errdev("out of memory!\n");
-		clear_bit(dev->devno, &cx231xx_devused);
-		v4l2_device_unregister(&dev->v4l2_dev);
-		kfree(dev);
-		dev = NULL;
-		return -ENOMEM;
+		retval = -ENOMEM;
+		goto err_vbi_alt;
 	}
 
 	for (i = 0; i < dev->vbi_mode.num_alt; i++) {
@@ -1344,11 +1331,8 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 
 	if (dev->sliced_cc_mode.alt_max_pkt_size == NULL) {
 		cx231xx_errdev("out of memory!\n");
-		clear_bit(dev->devno, &cx231xx_devused);
-		v4l2_device_unregister(&dev->v4l2_dev);
-		kfree(dev);
-		dev = NULL;
-		return -ENOMEM;
+		retval = -ENOMEM;
+		goto err_sliced_cc_alt;
 	}
 
 	for (i = 0; i < dev->sliced_cc_mode.num_alt; i++) {
@@ -1380,11 +1364,8 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 
 		if (dev->ts1_mode.alt_max_pkt_size == NULL) {
 			cx231xx_errdev("out of memory!\n");
-			clear_bit(dev->devno, &cx231xx_devused);
-			v4l2_device_unregister(&dev->v4l2_dev);
-			kfree(dev);
-			dev = NULL;
-			return -ENOMEM;
+			retval = -ENOMEM;
+			goto err_ts1_alt;
 		}
 
 		for (i = 0; i < dev->ts1_mode.num_alt; i++) {
@@ -1411,6 +1392,29 @@ static int cx231xx_usb_probe(struct usb_interface *interface,
 	request_modules(dev);
 
 	return 0;
+err_ts1_alt:
+	kfree(dev->sliced_cc_mode.alt_max_pkt_size);
+err_sliced_cc_alt:
+	kfree(dev->vbi_mode.alt_max_pkt_size);
+err_vbi_alt:
+	kfree(dev->video_mode.alt_max_pkt_size);
+err_video_alt:
+	/* cx231xx_uninit_dev: */
+	cx231xx_close_extension(dev);
+	cx231xx_ir_exit(dev);
+	cx231xx_release_analog_resources(dev);
+	cx231xx_417_unregister(dev);
+	cx231xx_remove_from_devlist(dev);
+	cx231xx_dev_uninit(dev);
+err_init:
+	v4l2_device_unregister(&dev->v4l2_dev);
+err_v4l2:
+	usb_set_intfdata(interface, NULL);
+err_if:
+	usb_put_dev(udev);
+	kfree(dev);
+	clear_bit(dev->devno, &cx231xx_devused);
+	return retval;
 }
 
 /*
-- 
cgit 


From b68cafc5ae5470648b9f90fe0846675d8c03e691 Mon Sep 17 00:00:00 2001
From: Frank Schaefer <fschaefer.oss@googlemail.com>
Date: Thu, 10 Oct 2013 14:36:30 -0300
Subject: [media] em28xx: fix and unify the coding style of the GPIO register
 write sequences
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Fix CodingStyle on the GPIO init tables.

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/em28xx/em28xx-cards.c | 102 ++++++++++++++++----------------
 drivers/media/usb/em28xx/em28xx-dvb.c   |  16 ++---
 2 files changed, 59 insertions(+), 59 deletions(-)

diff --git a/drivers/media/usb/em28xx/em28xx-cards.c b/drivers/media/usb/em28xx/em28xx-cards.c
index dc65742c4bbc..3765670f742a 100644
--- a/drivers/media/usb/em28xx/em28xx-cards.c
+++ b/drivers/media/usb/em28xx/em28xx-cards.c
@@ -95,8 +95,8 @@ static struct em28xx_reg_seq default_digital[] = {
 /* Board Hauppauge WinTV HVR 900 analog */
 static struct em28xx_reg_seq hauppauge_wintv_hvr_900_analog[] = {
 	{EM2820_R08_GPIO_CTRL,	0x2d,	~EM_GPIO_4,	10},
-	{0x05,			0xff,	0x10,		10},
-	{  -1,			-1,	-1,		-1},
+	{	0x05,		0xff,	0x10,		10},
+	{	-1,		-1,	-1,		-1},
 };
 
 /* Board Hauppauge WinTV HVR 900 digital */
@@ -104,20 +104,20 @@ static struct em28xx_reg_seq hauppauge_wintv_hvr_900_digital[] = {
 	{EM2820_R08_GPIO_CTRL,	0x2e,	~EM_GPIO_4,	10},
 	{EM2880_R04_GPO,	0x04,	0x0f,		10},
 	{EM2880_R04_GPO,	0x0c,	0x0f,		10},
-	{ -1,			-1,	-1,		-1},
+	{	-1,		-1,	-1,		-1},
 };
 
 /* Board Hauppauge WinTV HVR 900 (R2) digital */
 static struct em28xx_reg_seq hauppauge_wintv_hvr_900R2_digital[] = {
 	{EM2820_R08_GPIO_CTRL,	0x2e,	~EM_GPIO_4,	10},
 	{EM2880_R04_GPO,	0x0c,	0x0f,		10},
-	{ -1,			-1,	-1,		-1},
+	{	-1,		-1,	-1,		-1},
 };
 
 /* Boards - EM2880 MSI DIGIVOX AD and EM2880_BOARD_MSI_DIGIVOX_AD_II */
 static struct em28xx_reg_seq em2880_msi_digivox_ad_analog[] = {
-	{EM2820_R08_GPIO_CTRL,       0x69,   ~EM_GPIO_4,	 10},
-	{	-1,		-1,	-1,		 -1},
+	{EM2820_R08_GPIO_CTRL,	0x69,   ~EM_GPIO_4,	10},
+	{	-1,		-1,	-1,		-1},
 };
 
 /* Boards - EM2880 MSI DIGIVOX AD and EM2880_BOARD_MSI_DIGIVOX_AD_II */
@@ -132,7 +132,7 @@ static struct em28xx_reg_seq em2882_kworld_315u_digital[] = {
 	{EM2880_R04_GPO,	0x04,	0xff,		10},
 	{EM2880_R04_GPO,	0x0c,	0xff,		10},
 	{EM2820_R08_GPIO_CTRL,	0x7e,	0xff,		10},
-	{  -1,			-1,	-1,		-1},
+	{	-1,		-1,	-1,		-1},
 };
 
 static struct em28xx_reg_seq em2882_kworld_315u_tuner_gpio[] = {
@@ -140,19 +140,19 @@ static struct em28xx_reg_seq em2882_kworld_315u_tuner_gpio[] = {
 	{EM2880_R04_GPO,	0x0c,	0xff,		10},
 	{EM2880_R04_GPO,	0x08,	0xff,		10},
 	{EM2880_R04_GPO,	0x0c,	0xff,		10},
-	{  -1,			-1,	-1,		-1},
+	{	-1,		-1,	-1,		-1},
 };
 
 static struct em28xx_reg_seq kworld_330u_analog[] = {
 	{EM2820_R08_GPIO_CTRL,	0x6d,	~EM_GPIO_4,	10},
 	{EM2880_R04_GPO,	0x00,	0xff,		10},
-	{ -1,			-1,	-1,		-1},
+	{	-1,		-1,	-1,		-1},
 };
 
 static struct em28xx_reg_seq kworld_330u_digital[] = {
 	{EM2820_R08_GPIO_CTRL,	0x6e,	~EM_GPIO_4,	10},
 	{EM2880_R04_GPO,	0x08,	0xff,		10},
-	{ -1,			-1,	-1,		-1},
+	{	-1,		-1,	-1,		-1},
 };
 
 /* Evga inDtube
@@ -170,7 +170,7 @@ static struct em28xx_reg_seq evga_indtube_digital[] = {
 	{EM2820_R08_GPIO_CTRL,	0x7a,	0xff,		 1},
 	{EM2880_R04_GPO,	0x04,	0xff,		10},
 	{EM2880_R04_GPO,	0x0c,	0xff,		 1},
-	{ -1,			-1,	-1,		-1},
+	{	-1,		-1,	-1,		-1},
 };
 
 /*
@@ -185,8 +185,8 @@ static struct em28xx_reg_seq evga_indtube_digital[] = {
  * EM_GPIO_7 - currently unknown
  */
 static struct em28xx_reg_seq kworld_a340_digital[] = {
-	{EM2820_R08_GPIO_CTRL,	0x6d,		~EM_GPIO_4,	10},
-	{ -1,			-1,		-1,		-1},
+	{EM2820_R08_GPIO_CTRL,	0x6d,	~EM_GPIO_4,	10},
+	{	-1,		-1,	-1,		-1},
 };
 
 /* Pinnacle Hybrid Pro eb1a:2881 */
@@ -205,13 +205,13 @@ static struct em28xx_reg_seq pinnacle_hybrid_pro_digital[] = {
 static struct em28xx_reg_seq terratec_cinergy_USB_XS_FR_analog[] = {
 	{EM2820_R08_GPIO_CTRL,	0x6d,	~EM_GPIO_4,	10},
 	{EM2880_R04_GPO,	0x00,	0xff,		10},
-	{ -1,			-1,	-1,		-1},
+	{	-1,		-1,	-1,		-1},
 };
 
 static struct em28xx_reg_seq terratec_cinergy_USB_XS_FR_digital[] = {
 	{EM2820_R08_GPIO_CTRL,	0x6e,	~EM_GPIO_4,	10},
 	{EM2880_R04_GPO,	0x08,	0xff,		10},
-	{ -1,			-1,	-1,		-1},
+	{	-1,		-1,	-1,		-1},
 };
 
 /* eb1a:2868 Reddo DVB-C USB TV Box
@@ -225,7 +225,7 @@ static struct em28xx_reg_seq reddo_dvb_c_usb_box[] = {
 	{EM2820_R08_GPIO_CTRL,	0x7f,	0xff,		10},
 	{EM2820_R08_GPIO_CTRL,	0x6f,	0xff,		10},
 	{EM2820_R08_GPIO_CTRL,	0xff,	0xff,		10},
-	{-1,			-1,	-1,		-1},
+	{	-1,		-1,	-1,		-1},
 };
 
 /* Callback for the most boards */
@@ -233,23 +233,23 @@ static struct em28xx_reg_seq default_tuner_gpio[] = {
 	{EM2820_R08_GPIO_CTRL,	EM_GPIO_4,	EM_GPIO_4,	10},
 	{EM2820_R08_GPIO_CTRL,	0,		EM_GPIO_4,	10},
 	{EM2820_R08_GPIO_CTRL,	EM_GPIO_4,	EM_GPIO_4,	10},
-	{  -1,			-1,		-1,		-1},
+	{	-1,		-1,		-1,		-1},
 };
 
 /* Mute/unmute */
 static struct em28xx_reg_seq compro_unmute_tv_gpio[] = {
-	{EM2820_R08_GPIO_CTRL,	5,		7,		10},
-	{  -1,			-1,		-1,		-1},
+	{EM2820_R08_GPIO_CTRL,	5,	7,	10},
+	{	-1,		-1,	-1,	-1},
 };
 
 static struct em28xx_reg_seq compro_unmute_svid_gpio[] = {
-	{EM2820_R08_GPIO_CTRL,	4,		7,		10},
-	{  -1,			-1,		-1,		-1},
+	{EM2820_R08_GPIO_CTRL,	4,	7,	10},
+	{	-1,		-1,	-1,	-1},
 };
 
 static struct em28xx_reg_seq compro_mute_gpio[] = {
-	{EM2820_R08_GPIO_CTRL,	6,		7,		10},
-	{  -1,			-1,		-1,		-1},
+	{EM2820_R08_GPIO_CTRL,	6,	7,	10},
+	{	-1,		-1,	-1,	-1},
 };
 
 /* Terratec AV350 */
@@ -279,21 +279,21 @@ static struct em28xx_reg_seq vc211a_enable[] = {
 static struct em28xx_reg_seq dikom_dk300_digital[] = {
 	{EM2820_R08_GPIO_CTRL,	0x6e,	~EM_GPIO_4,	10},
 	{EM2880_R04_GPO,	0x08,	0xff,		10},
-	{ -1,			-1,	-1,		-1},
+	{	-1,		-1,	-1,		-1},
 };
 
 
 /* Reset for the most [digital] boards */
 static struct em28xx_reg_seq leadership_digital[] = {
 	{EM2874_R80_GPIO_P0_CTRL,	0x70,	0xff,	10},
-	{	-1,		-1,	-1,	-1},
+	{	-1,			-1,	-1,	-1},
 };
 
 static struct em28xx_reg_seq leadership_reset[] = {
 	{EM2874_R80_GPIO_P0_CTRL,	0xf0,	0xff,	10},
 	{EM2874_R80_GPIO_P0_CTRL,	0xb0,	0xff,	10},
 	{EM2874_R80_GPIO_P0_CTRL,	0xf0,	0xff,	10},
-	{	-1,		-1,	-1,	-1},
+	{	-1,			-1,	-1,	-1},
 };
 
 /* 2013:024f PCTV nanoStick T2 290e
@@ -304,7 +304,7 @@ static struct em28xx_reg_seq pctv_290e[] = {
 	{EM2874_R80_GPIO_P0_CTRL,	0x00,	0xff,	80},
 	{EM2874_R80_GPIO_P0_CTRL,	0x40,	0xff,	80}, /* GPIO_6 = 1 */
 	{EM2874_R80_GPIO_P0_CTRL,	0xc0,	0xff,	80}, /* GPIO_7 = 1 */
-	{-1,			-1,	-1,		-1},
+	{	-1,			-1,	-1,	-1},
 };
 
 #if 0
@@ -313,14 +313,14 @@ static struct em28xx_reg_seq terratec_h5_gpio[] = {
 	{EM2874_R80_GPIO_P0_CTRL,	0xf6,	0xff,	100},
 	{EM2874_R80_GPIO_P0_CTRL,	0xf2,	0xff,	50},
 	{EM2874_R80_GPIO_P0_CTRL,	0xf6,	0xff,	50},
-	{ -1,			-1,	-1,	-1},
+	{	-1,			-1,	-1,	-1},
 };
 
 static struct em28xx_reg_seq terratec_h5_digital[] = {
 	{EM2874_R80_GPIO_P0_CTRL,	0xf6,	0xff,	10},
 	{EM2874_R80_GPIO_P0_CTRL,	0xe6,	0xff,	100},
 	{EM2874_R80_GPIO_P0_CTRL,	0xa6,	0xff,	10},
-	{ -1,			-1,	-1,	-1},
+	{	-1,			-1,	-1,	-1},
 };
 #endif
 
@@ -335,12 +335,12 @@ static struct em28xx_reg_seq terratec_h5_digital[] = {
  * GPIO_7 - LED (green LED)
  */
 static struct em28xx_reg_seq pctv_460e[] = {
-	{EM2874_R80_GPIO_P0_CTRL, 0x01, 0xff,  50},
-	{0x0d,            0xff, 0xff,  50},
-	{EM2874_R80_GPIO_P0_CTRL, 0x41, 0xff,  50}, /* GPIO_6=1 */
-	{0x0d,            0x42, 0xff,  50},
-	{EM2874_R80_GPIO_P0_CTRL, 0x61, 0xff,  50}, /* GPIO_5=1 */
-	{             -1,   -1,   -1,  -1},
+	{EM2874_R80_GPIO_P0_CTRL,	0x01,	0xff,	50},
+	{	0x0d,			0xff,	0xff,	50},
+	{EM2874_R80_GPIO_P0_CTRL,	0x41,	0xff,	50}, /* GPIO_6=1 */
+	{	0x0d,			0x42,	0xff,	50},
+	{EM2874_R80_GPIO_P0_CTRL,	0x61,	0xff,	50}, /* GPIO_5=1 */
+	{	-1,			-1,	-1,	-1},
 };
 
 static struct em28xx_reg_seq c3tech_digital_duo_digital[] = {
@@ -352,7 +352,7 @@ static struct em28xx_reg_seq c3tech_digital_duo_digital[] = {
 	{EM2874_R80_GPIO_P0_CTRL,	0xfe,	0xff,	10},
 	{EM2874_R80_GPIO_P0_CTRL,	0xbe,	0xff,	10},
 	{EM2874_R80_GPIO_P0_CTRL,	0xfe,	0xff,	20},
-	{ -1,			-1,	-1,	-1},
+	{	-1,			-1,	-1,	-1},
 };
 
 #if 0
@@ -361,14 +361,14 @@ static struct em28xx_reg_seq hauppauge_930c_gpio[] = {
 	{EM2874_R80_GPIO_P0_CTRL,	0x4f,	0xff,	10}, /* xc5000 reset */
 	{EM2874_R80_GPIO_P0_CTRL,	0x6f,	0xff,	10},
 	{EM2874_R80_GPIO_P0_CTRL,	0x4f,	0xff,	10},
-	{ -1,			-1,	-1,	-1},
+	{	-1,			-1,	-1,	-1},
 };
 
 static struct em28xx_reg_seq hauppauge_930c_digital[] = {
 	{EM2874_R80_GPIO_P0_CTRL,	0xf6,	0xff,	10},
 	{EM2874_R80_GPIO_P0_CTRL,	0xe6,	0xff,	100},
 	{EM2874_R80_GPIO_P0_CTRL,	0xa6,	0xff,	10},
-	{ -1,			-1,	-1,	-1},
+	{	-1,			-1,	-1,	-1},
 };
 #endif
 
@@ -378,10 +378,10 @@ static struct em28xx_reg_seq hauppauge_930c_digital[] = {
  * GPIO_7 - LED, 0=active
  */
 static struct em28xx_reg_seq maxmedia_ub425_tc[] = {
-	{EM2874_R80_GPIO_P0_CTRL,  0x83,  0xff,  100},
-	{EM2874_R80_GPIO_P0_CTRL,  0xc3,  0xff,  100}, /* GPIO_6 = 1 */
-	{EM2874_R80_GPIO_P0_CTRL,  0x43,  0xff,  000}, /* GPIO_7 = 0 */
-	{-1,                 -1,    -1,   -1},
+	{EM2874_R80_GPIO_P0_CTRL,	0x83,	0xff,	100},
+	{EM2874_R80_GPIO_P0_CTRL,	0xc3,	0xff,	100}, /* GPIO_6 = 1 */
+	{EM2874_R80_GPIO_P0_CTRL,	0x43,	0xff,	000}, /* GPIO_7 = 0 */
+	{	-1,			-1,	-1,	-1},
 };
 
 /* 2304:0242 PCTV QuatroStick (510e)
@@ -391,10 +391,10 @@ static struct em28xx_reg_seq maxmedia_ub425_tc[] = {
  * GPIO_7: LED, 1=active
  */
 static struct em28xx_reg_seq pctv_510e[] = {
-	{EM2874_R80_GPIO_P0_CTRL, 0x10, 0xff, 100},
-	{EM2874_R80_GPIO_P0_CTRL, 0x14, 0xff, 100}, /* GPIO_2 = 1 */
-	{EM2874_R80_GPIO_P0_CTRL, 0x54, 0xff, 050}, /* GPIO_6 = 1 */
-	{             -1,   -1,   -1,  -1},
+	{EM2874_R80_GPIO_P0_CTRL,	0x10,	0xff,	100},
+	{EM2874_R80_GPIO_P0_CTRL,	0x14,	0xff,	100}, /* GPIO_2 = 1 */
+	{EM2874_R80_GPIO_P0_CTRL,	0x54,	0xff,	050}, /* GPIO_6 = 1 */
+	{	-1,			-1,	-1,	-1},
 };
 
 /* 2013:0251 PCTV QuatroStick nano (520e)
@@ -404,11 +404,11 @@ static struct em28xx_reg_seq pctv_510e[] = {
  * GPIO_7: LED, 1=active
  */
 static struct em28xx_reg_seq pctv_520e[] = {
-	{EM2874_R80_GPIO_P0_CTRL, 0x10, 0xff, 100},
-	{EM2874_R80_GPIO_P0_CTRL, 0x14, 0xff, 100}, /* GPIO_2 = 1 */
-	{EM2874_R80_GPIO_P0_CTRL, 0x54, 0xff, 050}, /* GPIO_6 = 1 */
-	{EM2874_R80_GPIO_P0_CTRL, 0xd4, 0xff, 000}, /* GPIO_7 = 1 */
-	{             -1,   -1,   -1,  -1},
+	{EM2874_R80_GPIO_P0_CTRL,	0x10,	0xff,	100},
+	{EM2874_R80_GPIO_P0_CTRL,	0x14,	0xff,	100}, /* GPIO_2 = 1 */
+	{EM2874_R80_GPIO_P0_CTRL,	0x54,	0xff,	050}, /* GPIO_6 = 1 */
+	{EM2874_R80_GPIO_P0_CTRL,	0xd4,	0xff,	000}, /* GPIO_7 = 1 */
+	{	-1,			-1,	-1,	-1},
 };
 
 /*
diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c
index 2324ac662ed3..ee8a6c68162e 100644
--- a/drivers/media/usb/em28xx/em28xx-dvb.c
+++ b/drivers/media/usb/em28xx/em28xx-dvb.c
@@ -427,7 +427,7 @@ static void hauppauge_hvr930c_init(struct em28xx *dev)
 		{EM2874_R80_GPIO_P0_CTRL,	0xff,	0xff,	0x65},
 		{EM2874_R80_GPIO_P0_CTRL,	0xfb,	0xff,	0x32},
 		{EM2874_R80_GPIO_P0_CTRL,	0xff,	0xff,	0xb8},
-		{ -1,                   -1,     -1,     -1},
+		{	-1,			-1,	-1,	-1},
 	};
 	struct em28xx_reg_seq hauppauge_hvr930c_end[] = {
 		{EM2874_R80_GPIO_P0_CTRL,	0xef,	0xff,	0x01},
@@ -442,7 +442,7 @@ static void hauppauge_hvr930c_init(struct em28xx *dev)
 		{EM2874_R80_GPIO_P0_CTRL,	0xcf,	0xff,	0x0b},
 		{EM2874_R80_GPIO_P0_CTRL,	0xef,	0xff,	0x65},
 
-		{ -1,                   -1,     -1,     -1},
+		{	-1,			-1,	-1,	-1},
 	};
 
 	struct {
@@ -494,13 +494,13 @@ static void terratec_h5_init(struct em28xx *dev)
 		{EM2874_R80_GPIO_P0_CTRL,	0xf6,	0xff,	100},
 		{EM2874_R80_GPIO_P0_CTRL,	0xf2,	0xff,	50},
 		{EM2874_R80_GPIO_P0_CTRL,	0xf6,	0xff,	100},
-		{ -1,                   -1,     -1,     -1},
+		{	-1,			-1,	-1,	-1},
 	};
 	struct em28xx_reg_seq terratec_h5_end[] = {
 		{EM2874_R80_GPIO_P0_CTRL,	0xe6,	0xff,	100},
 		{EM2874_R80_GPIO_P0_CTRL,	0xa6,	0xff,	50},
 		{EM2874_R80_GPIO_P0_CTRL,	0xe6,	0xff,	100},
-		{ -1,                   -1,     -1,     -1},
+		{	-1,			-1,	-1,	-1},
 	};
 	struct {
 		unsigned char r[4];
@@ -550,12 +550,12 @@ static void terratec_htc_stick_init(struct em28xx *dev)
 		{EM2874_R80_GPIO_P0_CTRL,	0xf6,	0xff,	100},
 		{EM2874_R80_GPIO_P0_CTRL,	0xe6,	0xff,	50},
 		{EM2874_R80_GPIO_P0_CTRL,	0xf6,	0xff,	100},
-		{ -1,                   -1,     -1,     -1},
+		{	-1,			-1,	-1,	-1},
 	};
 	struct em28xx_reg_seq terratec_htc_stick_end[] = {
 		{EM2874_R80_GPIO_P0_CTRL,	0xb6,	0xff,	100},
 		{EM2874_R80_GPIO_P0_CTRL,	0xf6,	0xff,	50},
-		{ -1,                   -1,     -1,     -1},
+		{	-1,			-1,	-1,	-1},
 	};
 
 	/*
@@ -597,13 +597,13 @@ static void terratec_htc_usb_xs_init(struct em28xx *dev)
 		{EM2874_R80_GPIO_P0_CTRL,	0xb2,	0xff,	100},
 		{EM2874_R80_GPIO_P0_CTRL,	0xb2,	0xff,	50},
 		{EM2874_R80_GPIO_P0_CTRL,	0xb6,	0xff,	100},
-		{ -1,                   -1,     -1,     -1},
+		{	-1,			-1,	-1,	-1},
 	};
 	struct em28xx_reg_seq terratec_htc_usb_xs_end[] = {
 		{EM2874_R80_GPIO_P0_CTRL,	0xa6,	0xff,	100},
 		{EM2874_R80_GPIO_P0_CTRL,	0xa6,	0xff,	50},
 		{EM2874_R80_GPIO_P0_CTRL,	0xe6,	0xff,	100},
-		{ -1,                   -1,     -1,     -1},
+		{	-1,			-1,	-1,	-1},
 	};
 
 	/*
-- 
cgit 


From 032f1ddf67e3e7da1a04995f5c322ded6805cbf4 Mon Sep 17 00:00:00 2001
From: Frank Schaefer <fschaefer.oss@googlemail.com>
Date: Thu, 10 Oct 2013 15:31:53 -0300
Subject: [media] em28xx: fix error path in em28xx_start_analog_streaming()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Increase the streaming_users count only if streaming start succeeds.

Signed-off-by: Frank Schäfer <fschaefer.oss@googlemail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/em28xx/em28xx-video.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c
index 9d103344f34a..fc5d60efd4ab 100644
--- a/drivers/media/usb/em28xx/em28xx-video.c
+++ b/drivers/media/usb/em28xx/em28xx-video.c
@@ -638,7 +638,7 @@ int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
 	if (rc)
 		return rc;
 
-	if (dev->streaming_users++ == 0) {
+	if (dev->streaming_users == 0) {
 		/* First active streaming user, so allocate all the URBs */
 
 		/* Allocate the USB bandwidth */
@@ -657,7 +657,7 @@ int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
 					  dev->packet_multiplier,
 					  em28xx_urb_data_copy);
 		if (rc < 0)
-			goto fail;
+			return rc;
 
 		/*
 		 * djh: it's not clear whether this code is still needed.  I'm
@@ -675,7 +675,8 @@ int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
 		v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
 	}
 
-fail:
+	dev->streaming_users++;
+
 	return rc;
 }
 
-- 
cgit 


From 68b3869ee9290d12af73bb8d2ed7a06988480a37 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 02:27:49 -0300
Subject: [media] saa7146: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag
It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/common/saa7146/saa7146_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/common/saa7146/saa7146_core.c b/drivers/media/common/saa7146/saa7146_core.c
index 2c86f1a5823d..34b0d0ddeef3 100644
--- a/drivers/media/common/saa7146/saa7146_core.c
+++ b/drivers/media/common/saa7146/saa7146_core.c
@@ -411,7 +411,7 @@ static int saa7146_init_one(struct pci_dev *pci, const struct pci_device_id *ent
 	saa7146_write(dev, MC2, 0xf8000000);
 
 	/* request an interrupt for the saa7146 */
-	err = request_irq(pci->irq, interrupt_hw, IRQF_SHARED | IRQF_DISABLED,
+	err = request_irq(pci->irq, interrupt_hw, IRQF_SHARED,
 			  dev->name, dev);
 	if (err < 0) {
 		ERR("request_irq() failed\n");
-- 
cgit 


From 9a373d17cc4555322a9044e5ca1ba8744ce273dd Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 02:37:35 -0300
Subject: [media] cx18: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag
It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/cx18/cx18-driver.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/pci/cx18/cx18-driver.c b/drivers/media/pci/cx18/cx18-driver.c
index 004d8ace5019..ff7232023f56 100644
--- a/drivers/media/pci/cx18/cx18-driver.c
+++ b/drivers/media/pci/cx18/cx18-driver.c
@@ -1031,8 +1031,7 @@ static int cx18_probe(struct pci_dev *pci_dev,
 
 	/* Register IRQ */
 	retval = request_irq(cx->pci_dev->irq, cx18_irq_handler,
-			     IRQF_SHARED | IRQF_DISABLED,
-			     cx->v4l2_dev.name, (void *)cx);
+			     IRQF_SHARED, cx->v4l2_dev.name, (void *)cx);
 	if (retval) {
 		CX18_ERR("Failed to register irq %d\n", retval);
 		goto free_i2c;
-- 
cgit 


From 3e018fe4409eae6fb36b882cb0dfb39859b7c237 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 02:49:29 -0300
Subject: [media] misc drivers: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag
It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/bt8xx/bt878.c          | 3 +--
 drivers/media/pci/bt8xx/bttv-driver.c    | 2 +-
 drivers/media/pci/cx23885/cx23885-core.c | 2 +-
 drivers/media/pci/cx88/cx88-alsa.c       | 2 +-
 drivers/media/pci/cx88/cx88-mpeg.c       | 2 +-
 drivers/media/pci/cx88/cx88-video.c      | 2 +-
 drivers/media/pci/meye/meye.c            | 2 +-
 drivers/media/pci/saa7134/saa7134-alsa.c | 2 +-
 drivers/media/pci/saa7134/saa7134-core.c | 2 +-
 drivers/media/pci/saa7164/saa7164-core.c | 2 +-
 10 files changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/media/pci/bt8xx/bt878.c b/drivers/media/pci/bt8xx/bt878.c
index 2bd24839a2ae..d0c281f41a0a 100644
--- a/drivers/media/pci/bt8xx/bt878.c
+++ b/drivers/media/pci/bt8xx/bt878.c
@@ -488,8 +488,7 @@ static int bt878_probe(struct pci_dev *dev, const struct pci_device_id *pci_id)
 	btwrite(0, BT848_INT_MASK);
 
 	result = request_irq(bt->irq, bt878_irq,
-			     IRQF_SHARED | IRQF_DISABLED, "bt878",
-			     (void *) bt);
+			     IRQF_SHARED, "bt878", (void *) bt);
 	if (result == -EINVAL) {
 		printk(KERN_ERR "bt878(%d): Bad irq number or handler\n",
 		       bt878_num);
diff --git a/drivers/media/pci/bt8xx/bttv-driver.c b/drivers/media/pci/bt8xx/bttv-driver.c
index c6532de0eac7..a3b1ee9c00d7 100644
--- a/drivers/media/pci/bt8xx/bttv-driver.c
+++ b/drivers/media/pci/bt8xx/bttv-driver.c
@@ -4086,7 +4086,7 @@ static int bttv_probe(struct pci_dev *dev, const struct pci_device_id *pci_id)
 	/* disable irqs, register irq handler */
 	btwrite(0, BT848_INT_MASK);
 	result = request_irq(btv->c.pci->irq, bttv_irq,
-	    IRQF_SHARED | IRQF_DISABLED, btv->c.v4l2_dev.name, (void *)btv);
+	    IRQF_SHARED, btv->c.v4l2_dev.name, (void *)btv);
 	if (result < 0) {
 		pr_err("%d: can't get IRQ %d\n",
 		       bttv_num, btv->c.pci->irq);
diff --git a/drivers/media/pci/cx23885/cx23885-core.c b/drivers/media/pci/cx23885/cx23885-core.c
index 9f63d93239ec..edcd79db1e4e 100644
--- a/drivers/media/pci/cx23885/cx23885-core.c
+++ b/drivers/media/pci/cx23885/cx23885-core.c
@@ -2129,7 +2129,7 @@ static int cx23885_initdev(struct pci_dev *pci_dev,
 	}
 
 	err = request_irq(pci_dev->irq, cx23885_irq,
-			  IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
+			  IRQF_SHARED, dev->name, dev);
 	if (err < 0) {
 		printk(KERN_ERR "%s: can't get IRQ %d\n",
 		       dev->name, pci_dev->irq);
diff --git a/drivers/media/pci/cx88/cx88-alsa.c b/drivers/media/pci/cx88/cx88-alsa.c
index 11d069295032..400eb1c42d3f 100644
--- a/drivers/media/pci/cx88/cx88-alsa.c
+++ b/drivers/media/pci/cx88/cx88-alsa.c
@@ -834,7 +834,7 @@ static int snd_cx88_create(struct snd_card *card, struct pci_dev *pci,
 
 	/* get irq */
 	err = request_irq(chip->pci->irq, cx8801_irq,
-			  IRQF_SHARED | IRQF_DISABLED, chip->core->name, chip);
+			  IRQF_SHARED, chip->core->name, chip);
 	if (err < 0) {
 		dprintk(0, "%s: can't get IRQ %d\n",
 		       chip->core->name, chip->pci->irq);
diff --git a/drivers/media/pci/cx88/cx88-mpeg.c b/drivers/media/pci/cx88/cx88-mpeg.c
index 684eff57717f..74b7b8614c23 100644
--- a/drivers/media/pci/cx88/cx88-mpeg.c
+++ b/drivers/media/pci/cx88/cx88-mpeg.c
@@ -499,7 +499,7 @@ static int cx8802_init_common(struct cx8802_dev *dev)
 
 	/* get irq */
 	err = request_irq(dev->pci->irq, cx8802_irq,
-			  IRQF_SHARED | IRQF_DISABLED, dev->core->name, dev);
+			  IRQF_SHARED, dev->core->name, dev);
 	if (err < 0) {
 		printk(KERN_ERR "%s: can't get IRQ %d\n",
 		       dev->core->name, dev->pci->irq);
diff --git a/drivers/media/pci/cx88/cx88-video.c b/drivers/media/pci/cx88/cx88-video.c
index 1aed764a35dd..ed8cb9037b6f 100644
--- a/drivers/media/pci/cx88/cx88-video.c
+++ b/drivers/media/pci/cx88/cx88-video.c
@@ -1738,7 +1738,7 @@ static int cx8800_initdev(struct pci_dev *pci_dev,
 
 	/* get irq */
 	err = request_irq(pci_dev->irq, cx8800_irq,
-			  IRQF_SHARED | IRQF_DISABLED, core->name, dev);
+			  IRQF_SHARED, core->name, dev);
 	if (err < 0) {
 		printk(KERN_ERR "%s/0: can't get IRQ %d\n",
 		       core->name,pci_dev->irq);
diff --git a/drivers/media/pci/meye/meye.c b/drivers/media/pci/meye/meye.c
index 2381b05432e6..54d5c821007c 100644
--- a/drivers/media/pci/meye/meye.c
+++ b/drivers/media/pci/meye/meye.c
@@ -1698,7 +1698,7 @@ static int meye_probe(struct pci_dev *pcidev, const struct pci_device_id *ent)
 
 	meye.mchip_irq = pcidev->irq;
 	if (request_irq(meye.mchip_irq, meye_irq,
-			IRQF_DISABLED | IRQF_SHARED, "meye", meye_irq)) {
+			IRQF_SHARED, "meye", meye_irq)) {
 		v4l2_err(v4l2_dev, "request_irq failed\n");
 		goto outreqirq;
 	}
diff --git a/drivers/media/pci/saa7134/saa7134-alsa.c b/drivers/media/pci/saa7134/saa7134-alsa.c
index dbcdfbf8aed0..dd67c8a400cc 100644
--- a/drivers/media/pci/saa7134/saa7134-alsa.c
+++ b/drivers/media/pci/saa7134/saa7134-alsa.c
@@ -1096,7 +1096,7 @@ static int alsa_card_saa7134_create(struct saa7134_dev *dev, int devnum)
 
 
 	err = request_irq(dev->pci->irq, saa7134_alsa_irq,
-				IRQF_SHARED | IRQF_DISABLED, dev->name,
+				IRQF_SHARED, dev->name,
 				(void*) &dev->dmasound);
 
 	if (err < 0) {
diff --git a/drivers/media/pci/saa7134/saa7134-core.c b/drivers/media/pci/saa7134/saa7134-core.c
index 45f0aca597ae..27d7ee709c58 100644
--- a/drivers/media/pci/saa7134/saa7134-core.c
+++ b/drivers/media/pci/saa7134/saa7134-core.c
@@ -992,7 +992,7 @@ static int saa7134_initdev(struct pci_dev *pci_dev,
 
 	/* get irq */
 	err = request_irq(pci_dev->irq, saa7134_irq,
-			  IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
+			  IRQF_SHARED, dev->name, dev);
 	if (err < 0) {
 		printk(KERN_ERR "%s: can't get IRQ %d\n",
 		       dev->name,pci_dev->irq);
diff --git a/drivers/media/pci/saa7164/saa7164-core.c b/drivers/media/pci/saa7164/saa7164-core.c
index 41adf260d13b..57ef5456f1e8 100644
--- a/drivers/media/pci/saa7164/saa7164-core.c
+++ b/drivers/media/pci/saa7164/saa7164-core.c
@@ -1232,7 +1232,7 @@ static int saa7164_initdev(struct pci_dev *pci_dev,
 	}
 
 	err = request_irq(pci_dev->irq, saa7164_irq,
-		IRQF_SHARED | IRQF_DISABLED, dev->name, dev);
+		IRQF_SHARED, dev->name, dev);
 	if (err < 0) {
 		printk(KERN_ERR "%s: can't get IRQ %d\n", dev->name,
 			pci_dev->irq);
-- 
cgit 


From 7b5e71ad0437390b57b0e9bb834405f043cb72e8 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 02:52:32 -0300
Subject: [media] zoran: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag
It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/zoran/zoran_card.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/zoran/zoran_card.c b/drivers/media/pci/zoran/zoran_card.c
index 923d59a321f8..cec5b7553f28 100644
--- a/drivers/media/pci/zoran/zoran_card.c
+++ b/drivers/media/pci/zoran/zoran_card.c
@@ -1293,7 +1293,7 @@ static int zoran_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	}
 
 	result = request_irq(zr->pci_dev->irq, zoran_irq,
-			     IRQF_SHARED | IRQF_DISABLED, ZR_DEVNAME(zr), zr);
+			     IRQF_SHARED, ZR_DEVNAME(zr), zr);
 	if (result < 0) {
 		if (result == -EINVAL) {
 			dprintk(1,
-- 
cgit 


From 43917b2552425ca7fa936d6d122dd4813a3faaac Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 02:54:40 -0300
Subject: [media] ivtv: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag
It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/ivtv/ivtv-driver.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/ivtv/ivtv-driver.c b/drivers/media/pci/ivtv/ivtv-driver.c
index c08ae3eb9554..802642d26643 100644
--- a/drivers/media/pci/ivtv/ivtv-driver.c
+++ b/drivers/media/pci/ivtv/ivtv-driver.c
@@ -1261,7 +1261,7 @@ static int ivtv_probe(struct pci_dev *pdev, const struct pci_device_id *pci_id)
 
 	/* Register IRQ */
 	retval = request_irq(itv->pdev->irq, ivtv_irq_handler,
-	     IRQF_SHARED | IRQF_DISABLED, itv->v4l2_dev.name, (void *)itv);
+	     IRQF_SHARED, itv->v4l2_dev.name, (void *)itv);
 	if (retval) {
 		IVTV_ERR("Failed to register irq %d\n", retval);
 		goto free_i2c;
-- 
cgit 


From a232728d1ef26c8d16a81d4a7e52513d26bd01d2 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 03:08:36 -0300
Subject: [media] ir-rx51: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag
It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/rc/ir-rx51.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/rc/ir-rx51.c b/drivers/media/rc/ir-rx51.c
index 31b955bf7664..b1e19a26208d 100644
--- a/drivers/media/rc/ir-rx51.c
+++ b/drivers/media/rc/ir-rx51.c
@@ -201,8 +201,7 @@ static int lirc_rx51_init_port(struct lirc_rx51 *lirc_rx51)
 
 	lirc_rx51->irq_num = omap_dm_timer_get_irq(lirc_rx51->pulse_timer);
 	retval = request_irq(lirc_rx51->irq_num, lirc_rx51_interrupt_handler,
-			     IRQF_DISABLED | IRQF_SHARED,
-			     "lirc_pulse_timer", lirc_rx51);
+			     IRQF_SHARED, "lirc_pulse_timer", lirc_rx51);
 	if (retval) {
 		dev_err(lirc_rx51->dev, ": Failed to request interrupt line\n");
 		goto err2;
-- 
cgit 


From b9e9f02a26909fdf9b81d41aeaa435b9ea926d6a Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 03:11:12 -0300
Subject: [media] winbond-cir: remove deprecated IRQF_DISABLED
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This patch proposes to remove the use of the IRQF_DISABLED flag
It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/rc/winbond-cir.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/rc/winbond-cir.c b/drivers/media/rc/winbond-cir.c
index 98bd4960c75e..904baf4eec28 100644
--- a/drivers/media/rc/winbond-cir.c
+++ b/drivers/media/rc/winbond-cir.c
@@ -1110,7 +1110,7 @@ wbcir_probe(struct pnp_dev *device, const struct pnp_device_id *dev_id)
 	}
 
 	err = request_irq(data->irq, wbcir_irq_handler,
-			  IRQF_DISABLED, DRVNAME, device);
+			  0, DRVNAME, device);
 	if (err) {
 		dev_err(dev, "Failed to claim IRQ %u\n", data->irq);
 		err = -EBUSY;
-- 
cgit 


From 4eed9b337604307d1d31902212f2e8e42a864c51 Mon Sep 17 00:00:00 2001
From: Sylwester Nawrocki <sylvester.nawrocki@gmail.com>
Date: Mon, 14 Oct 2013 20:08:03 -0300
Subject: [media] v4l2-ctrls: Correct v4l2_ctrl_get_int_menu() function's
 return type

Remove the redundant 'const' qualifiers from the function
signature and from the qmenu_int arrays' declarations.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/v4l2-core/v4l2-ctrls.c | 6 +++---
 include/media/v4l2-common.h          | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-ctrls.c b/drivers/media/v4l2-core/v4l2-ctrls.c
index df3a67b40f00..60dcc0f3b32e 100644
--- a/drivers/media/v4l2-core/v4l2-ctrls.c
+++ b/drivers/media/v4l2-core/v4l2-ctrls.c
@@ -565,13 +565,13 @@ EXPORT_SYMBOL(v4l2_ctrl_get_menu);
  * Returns NULL or an s64 type array containing the menu for given
  * control ID. The total number of the menu items is returned in @len.
  */
-const s64 const *v4l2_ctrl_get_int_menu(u32 id, u32 *len)
+const s64 *v4l2_ctrl_get_int_menu(u32 id, u32 *len)
 {
-	static const s64 const qmenu_int_vpx_num_partitions[] = {
+	static const s64 qmenu_int_vpx_num_partitions[] = {
 		1, 2, 4, 8,
 	};
 
-	static const s64 const qmenu_int_vpx_num_ref_frames[] = {
+	static const s64 qmenu_int_vpx_num_ref_frames[] = {
 		1, 2, 3,
 	};
 
diff --git a/include/media/v4l2-common.h b/include/media/v4l2-common.h
index 16550c439008..b87692c0b042 100644
--- a/include/media/v4l2-common.h
+++ b/include/media/v4l2-common.h
@@ -86,7 +86,7 @@ int v4l2_ctrl_check(struct v4l2_ext_control *ctrl, struct v4l2_queryctrl *qctrl,
 		const char * const *menu_items);
 const char *v4l2_ctrl_get_name(u32 id);
 const char * const *v4l2_ctrl_get_menu(u32 id);
-const s64 const *v4l2_ctrl_get_int_menu(u32 id, u32 *len);
+const s64 *v4l2_ctrl_get_int_menu(u32 id, u32 *len);
 int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 step, s32 def);
 int v4l2_ctrl_query_menu(struct v4l2_querymenu *qmenu,
 		struct v4l2_queryctrl *qctrl, const char * const *menu_items);
-- 
cgit 


From 4f1af2a33c9c5fbd2bf31a1679378860aca79f9e Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Thu, 3 Oct 2013 18:55:52 -0300
Subject: [media] v4l2-fh: Include linux/fs.h for struct file definition

v4l2-fh.h dereferences struct file, the structure must thus be defined.
Pull in its definition by including linux/fs.h.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 include/media/v4l2-fh.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/media/v4l2-fh.h b/include/media/v4l2-fh.h
index a62ee18cb7b7..0d922080667f 100644
--- a/include/media/v4l2-fh.h
+++ b/include/media/v4l2-fh.h
@@ -26,6 +26,7 @@
 #ifndef V4L2_FH_H
 #define V4L2_FH_H
 
+#include <linux/fs.h>
 #include <linux/list.h>
 
 struct video_device;
-- 
cgit 


From c8d185ce33ecd560275f76c590fda4cdba824bd9 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Thu, 3 Oct 2013 18:59:30 -0300
Subject: [media] v4l2-fh: Include linux/videodev2.h for enum v4l2_priority
 definition

struct v4l2_fh has an enum v4l2_priority field. Make sure the enum
definition is available by including linux/videodev2.h.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 include/media/v4l2-fh.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/media/v4l2-fh.h b/include/media/v4l2-fh.h
index 0d922080667f..528cdaf622e1 100644
--- a/include/media/v4l2-fh.h
+++ b/include/media/v4l2-fh.h
@@ -28,6 +28,7 @@
 
 #include <linux/fs.h>
 #include <linux/list.h>
+#include <linux/videodev2.h>
 
 struct video_device;
 struct v4l2_ctrl_handler;
-- 
cgit 


From 60b3b4d2de93f0bfa59dbd3104f2f40afd630d1c Mon Sep 17 00:00:00 2001
From: Hans Verkuil <hans.verkuil@cisco.com>
Date: Fri, 4 Oct 2013 11:01:51 -0300
Subject: [media] cx25821: fix sparse warnings

drivers/media/pci/cx25821/cx25821-cards.c:49:20: warning: symbol 'cx25821_bcount' was not declared. Should it be static?
drivers/media/pci/cx25821/cx25821-video-upstream.c:162:33: warning: incorrect type in assignment (different base types)
drivers/media/pci/cx25821/cx25821-video-upstream.c:163:33: warning: incorrect type in assignment (different base types)
drivers/media/pci/cx25821/cx25821-video-upstream.c:164:33: warning: incorrect type in assignment (different base types)
drivers/media/pci/cx25821/cx25821-video-upstream.c:165:33: warning: incorrect type in assignment (different base types)
drivers/media/pci/cx25821/cx25821-medusa-video.h:43:16: warning: symbol '_num_decoders' was not declared. Should it be static?
drivers/media/pci/cx25821/cx25821-medusa-video.h:44:16: warning: symbol '_num_cameras' was not declared. Should it be static?
drivers/media/pci/cx25821/cx25821-medusa-video.h:46:14: warning: symbol '_video_standard' was not declared. Should it be static?
drivers/media/pci/cx25821/cx25821-medusa-video.h:47:5: warning: symbol '_display_field_cnt' was not declared. Should it be static?
After analyzing the last four warnings carefully it became clear that these
variables were really completely unused. As a result of that the call to
medusa_set_decoderduration() is now dubious since the duration is always 0.
Without documentation, however, I can't tell what the right value is.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/cx25821/cx25821-cards.c          |  2 --
 drivers/media/pci/cx25821/cx25821-medusa-video.c   | 18 ++++++++++--------
 drivers/media/pci/cx25821/cx25821-medusa-video.h   |  6 ------
 drivers/media/pci/cx25821/cx25821-video-upstream.c |  8 ++++----
 4 files changed, 14 insertions(+), 20 deletions(-)

diff --git a/drivers/media/pci/cx25821/cx25821-cards.c b/drivers/media/pci/cx25821/cx25821-cards.c
index 3b409feb03d8..f2ebc989b303 100644
--- a/drivers/media/pci/cx25821/cx25821-cards.c
+++ b/drivers/media/pci/cx25821/cx25821-cards.c
@@ -45,5 +45,3 @@ struct cx25821_board cx25821_boards[] = {
 	},
 
 };
-
-const unsigned int cx25821_bcount = ARRAY_SIZE(cx25821_boards);
diff --git a/drivers/media/pci/cx25821/cx25821-medusa-video.c b/drivers/media/pci/cx25821/cx25821-medusa-video.c
index 22fa04415ccc..43bdfa4dfba1 100644
--- a/drivers/media/pci/cx25821/cx25821-medusa-video.c
+++ b/drivers/media/pci/cx25821/cx25821-medusa-video.c
@@ -438,7 +438,7 @@ void medusa_set_resolution(struct cx25821_dev *dev, int width,
 		decoder_count = decoder_select + 1;
 	} else {
 		decoder = 0;
-		decoder_count = _num_decoders;
+		decoder_count = dev->_max_num_decoders;
 	}
 
 	switch (width) {
@@ -506,8 +506,6 @@ static void medusa_set_decoderduration(struct cx25821_dev *dev, int decoder,
 		break;
 	}
 
-	_display_field_cnt[decoder] = duration;
-
 	/* update hardware */
 	fld_cnt = cx25821_i2c_read(&dev->i2c_bus[0], disp_cnt_reg, &tmp);
 
@@ -667,8 +665,6 @@ int medusa_video_init(struct cx25821_dev *dev)
 	int ret_val = 0;
 	int i = 0;
 
-	_num_decoders = dev->_max_num_decoders;
-
 	/* disable Auto source selection on all video decoders */
 	value = cx25821_i2c_read(&dev->i2c_bus[0], MON_A_CTRL, &tmp);
 	value &= 0xFFFFF0FF;
@@ -685,8 +681,14 @@ int medusa_video_init(struct cx25821_dev *dev)
 	if (ret_val < 0)
 		goto error;
 
-	for (i = 0; i < _num_decoders; i++)
-		medusa_set_decoderduration(dev, i, _display_field_cnt[i]);
+	/*
+	 * FIXME: due to a coding bug the duration was always 0. It's
+	 * likely that it really should be something else, but due to the
+	 * lack of documentation I have no idea what it should be. For
+	 * now just fill in 0 as the duration.
+	 */
+	for (i = 0; i < dev->_max_num_decoders; i++)
+		medusa_set_decoderduration(dev, i, 0);
 
 	/* Select monitor as DENC A input, power up the DAC */
 	value = cx25821_i2c_read(&dev->i2c_bus[0], DENC_AB_CTRL, &tmp);
@@ -717,7 +719,7 @@ int medusa_video_init(struct cx25821_dev *dev)
 	/* Turn on all of the data out and control output pins. */
 	value = cx25821_i2c_read(&dev->i2c_bus[0], PIN_OE_CTRL, &tmp);
 	value &= 0xFEF0FE00;
-	if (_num_decoders == MAX_DECODERS) {
+	if (dev->_max_num_decoders == MAX_DECODERS) {
 		/*
 		 * Note: The octal board does not support control pins(bit16-19)
 		 * These bits are ignored in the octal board.
diff --git a/drivers/media/pci/cx25821/cx25821-medusa-video.h b/drivers/media/pci/cx25821/cx25821-medusa-video.h
index 6175e0961855..8bf602ff27b1 100644
--- a/drivers/media/pci/cx25821/cx25821-medusa-video.h
+++ b/drivers/media/pci/cx25821/cx25821-medusa-video.h
@@ -40,10 +40,4 @@
 #define CONTRAST_DEFAULT                5000
 #define HUE_DEFAULT                     5000
 
-unsigned short _num_decoders;
-unsigned short _num_cameras;
-
-unsigned int _video_standard;
-int _display_field_cnt[MAX_DECODERS];
-
 #endif
diff --git a/drivers/media/pci/cx25821/cx25821-video-upstream.c b/drivers/media/pci/cx25821/cx25821-video-upstream.c
index 88ffef410c50..1f43be0b04c8 100644
--- a/drivers/media/pci/cx25821/cx25821-video-upstream.c
+++ b/drivers/media/pci/cx25821/cx25821-video-upstream.c
@@ -159,10 +159,10 @@ static __le32 *cx25821_risc_field_upstream(struct cx25821_channel *chan, __le32
 		 * For the upstream video channel, the risc engine will enable
 		 * the FIFO. */
 		if (fifo_enable && line == 3) {
-			*(rp++) = RISC_WRITECR;
-			*(rp++) = sram_ch->dma_ctl;
-			*(rp++) = FLD_VID_FIFO_EN;
-			*(rp++) = 0x00000001;
+			*(rp++) = cpu_to_le32(RISC_WRITECR);
+			*(rp++) = cpu_to_le32(sram_ch->dma_ctl);
+			*(rp++) = cpu_to_le32(FLD_VID_FIFO_EN);
+			*(rp++) = cpu_to_le32(0x00000001);
 		}
 	}
 
-- 
cgit 


From 8ca5d2d8e58df7235b77ed435e63c484e123fede Mon Sep 17 00:00:00 2001
From: Chanho Min <chanho.min@lge.com>
Date: Fri, 27 Sep 2013 01:57:40 -0300
Subject: [media] uvcvideo: Fix data type for pan/tilt control

The pan/tilt absolute control value is signed value. If minimum value
is minus, It will be changed to plus by clamp_t() as commit 64ae9958a62.
([media] uvcvideo: Fix control value clamping for unsigned integer controls).
It leads to wrong setting of the control values. For example,
when min and max are -36000 and 36000, the setting value between of this range
is always 36000. So, its data type should be changed to signed.

Signed-off-by: Chanho Min <chanho.min@lge.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/uvc/uvc_ctrl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c
index a2f4501c23ca..0eb82106d2ff 100644
--- a/drivers/media/usb/uvc/uvc_ctrl.c
+++ b/drivers/media/usb/uvc/uvc_ctrl.c
@@ -664,7 +664,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = {
 		.size		= 32,
 		.offset		= 0,
 		.v4l2_type	= V4L2_CTRL_TYPE_INTEGER,
-		.data_type	= UVC_CTRL_DATA_TYPE_UNSIGNED,
+		.data_type	= UVC_CTRL_DATA_TYPE_SIGNED,
 	},
 	{
 		.id		= V4L2_CID_TILT_ABSOLUTE,
@@ -674,7 +674,7 @@ static struct uvc_control_mapping uvc_ctrl_mappings[] = {
 		.size		= 32,
 		.offset		= 32,
 		.v4l2_type	= V4L2_CTRL_TYPE_INTEGER,
-		.data_type	= UVC_CTRL_DATA_TYPE_UNSIGNED,
+		.data_type	= UVC_CTRL_DATA_TYPE_SIGNED,
 	},
 	{
 		.id		= V4L2_CID_PRIVACY,
-- 
cgit 


From 63fc184cde2d771affc2e7885c05a2792bae9f86 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 5 Oct 2013 12:23:38 +0100
Subject: spi/tegra20-slink: Crude refactoring to use core message parsing

This is a half done conversion with minimal code reorganisation provided
for bisection purposes. A further patch will move the first transfer
preparation into tegra_slink_prepare_message().

The cs_change and udelay handling is removed, these should be
implemented by the framework and in any case are buggy - the two fields
should not be related and the cs_change handling appears to at best only
work the first time it's used in a message.

Signed-off-by: Mark Brown <broonie@linaro.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
---
 drivers/spi/spi-tegra20-slink.c | 88 +++++++++++++++++++++--------------------
 1 file changed, 46 insertions(+), 42 deletions(-)

diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c
index d1d2bff01301..3576fcb3f79b 100644
--- a/drivers/spi/spi-tegra20-slink.c
+++ b/drivers/spi/spi-tegra20-slink.c
@@ -196,6 +196,7 @@ struct tegra_slink_data {
 	u32					rx_status;
 	u32					status_reg;
 	bool					is_packed;
+	bool                                    is_first_msg;
 	unsigned long				packed_size;
 
 	u32					command_reg;
@@ -823,55 +824,56 @@ static int tegra_slink_setup(struct spi_device *spi)
 	return 0;
 }
 
-static int tegra_slink_transfer_one_message(struct spi_master *master,
-			struct spi_message *msg)
+static int tegra_slink_prepare_message(struct spi_master *master,
+				       struct spi_message *msg)
 {
-	bool is_first_msg = true;
 	struct tegra_slink_data *tspi = spi_master_get_devdata(master);
-	struct spi_transfer *xfer;
-	struct spi_device *spi = msg->spi;
-	int ret;
 
-	msg->status = 0;
-	msg->actual_length = 0;
+	tspi->is_first_msg = true;
 
-	list_for_each_entry(xfer, &msg->transfers, transfer_list) {
-		INIT_COMPLETION(tspi->xfer_completion);
-		ret = tegra_slink_start_transfer_one(spi, xfer, is_first_msg);
-		if (ret < 0) {
-			dev_err(tspi->dev,
-				"spi can not start transfer, err %d\n", ret);
-			goto exit;
-		}
-		is_first_msg = false;
-		ret = wait_for_completion_timeout(&tspi->xfer_completion,
-						SLINK_DMA_TIMEOUT);
-		if (WARN_ON(ret == 0)) {
-			dev_err(tspi->dev,
-				"spi trasfer timeout, err %d\n", ret);
-			ret = -EIO;
-			goto exit;
-		}
+	return 0;
+}
 
-		if (tspi->tx_status ||  tspi->rx_status) {
-			dev_err(tspi->dev, "Error in Transfer\n");
-			ret = -EIO;
-			goto exit;
-		}
-		msg->actual_length += xfer->len;
-		if (xfer->cs_change && xfer->delay_usecs) {
-			tegra_slink_writel(tspi, tspi->def_command_reg,
-					SLINK_COMMAND);
-			udelay(xfer->delay_usecs);
-		}
+static int tegra_slink_transfer_one(struct spi_master *master,
+				    struct spi_device *spi,
+				    struct spi_transfer *xfer)
+{
+	struct tegra_slink_data *tspi = spi_master_get_devdata(master);
+	int ret;
+
+	INIT_COMPLETION(tspi->xfer_completion);
+	ret = tegra_slink_start_transfer_one(spi, xfer, tspi->is_first_msg);
+	if (ret < 0) {
+		dev_err(tspi->dev,
+			"spi can not start transfer, err %d\n", ret);
+		return ret;
 	}
-	ret = 0;
-exit:
+	tspi->is_first_msg = false;
+	ret = wait_for_completion_timeout(&tspi->xfer_completion,
+					  SLINK_DMA_TIMEOUT);
+	if (WARN_ON(ret == 0)) {
+		dev_err(tspi->dev,
+			"spi trasfer timeout, err %d\n", ret);
+		return -EIO;
+	}
+
+	if (tspi->tx_status)
+		return tspi->tx_status;
+	if (tspi->rx_status)
+		return tspi->rx_status;
+
+	return 0;
+}
+
+static int tegra_slink_unprepare_message(struct spi_master *master,
+					 struct spi_message *msg)
+{
+	struct tegra_slink_data *tspi = spi_master_get_devdata(master);
+
 	tegra_slink_writel(tspi, tspi->def_command_reg, SLINK_COMMAND);
 	tegra_slink_writel(tspi, tspi->def_command2_reg, SLINK_COMMAND2);
-	msg->status = ret;
-	spi_finalize_current_message(master);
-	return ret;
+
+	return 0;
 }
 
 static irqreturn_t handle_cpu_based_xfer(struct tegra_slink_data *tspi)
@@ -1074,7 +1076,9 @@ static int tegra_slink_probe(struct platform_device *pdev)
 	/* the spi->mode bits understood by this driver: */
 	master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
 	master->setup = tegra_slink_setup;
-	master->transfer_one_message = tegra_slink_transfer_one_message;
+	master->prepare_message = tegra_slink_prepare_message;
+	master->transfer_one = tegra_slink_transfer_one;
+	master->unprepare_message = tegra_slink_unprepare_message;
 	master->auto_runtime_pm = true;
 	master->num_chipselect = MAX_CHIP_SELECT;
 	master->bus_num = -1;
-- 
cgit 


From f178e3dec700d5f47cc9a282dd098a2a7422d6c7 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 5 Oct 2013 12:30:42 +0100
Subject: spi/tegra20-slink: Move first transfer preparation to prepare_message

This is more idiomatic for the factored out message processing and gives a
small simplification of the code since we always set the per-transfer
parameters in the same fashion.

Signed-off-by: Mark Brown <broonie@linaro.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
---
 drivers/spi/spi-tegra20-slink.c | 55 +++++++++++++++++++----------------------
 1 file changed, 25 insertions(+), 30 deletions(-)

diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c
index 3576fcb3f79b..14292c53c030 100644
--- a/drivers/spi/spi-tegra20-slink.c
+++ b/drivers/spi/spi-tegra20-slink.c
@@ -196,7 +196,6 @@ struct tegra_slink_data {
 	u32					rx_status;
 	u32					status_reg;
 	bool					is_packed;
-	bool                                    is_first_msg;
 	unsigned long				packed_size;
 
 	u32					command_reg;
@@ -708,7 +707,7 @@ static void tegra_slink_deinit_dma_param(struct tegra_slink_data *tspi,
 }
 
 static int tegra_slink_start_transfer_one(struct spi_device *spi,
-		struct spi_transfer *t, bool is_first_of_msg)
+		struct spi_transfer *t)
 {
 	struct tegra_slink_data *tspi = spi_master_get_devdata(spi->master);
 	u32 speed;
@@ -732,32 +731,12 @@ static int tegra_slink_start_transfer_one(struct spi_device *spi,
 	tspi->curr_xfer = t;
 	total_fifo_words = tegra_slink_calculate_curr_xfer_param(spi, tspi, t);
 
-	if (is_first_of_msg) {
-		tegra_slink_clear_status(tspi);
+	command = tspi->command_reg;
+	command &= ~SLINK_BIT_LENGTH(~0);
+	command |= SLINK_BIT_LENGTH(bits_per_word - 1);
 
-		command = tspi->def_command_reg;
-		command |= SLINK_BIT_LENGTH(bits_per_word - 1);
-		command |= SLINK_CS_SW | SLINK_CS_VALUE;
-
-		command2 = tspi->def_command2_reg;
-		command2 |= SLINK_SS_EN_CS(spi->chip_select);
-
-		command &= ~SLINK_MODES;
-		if (spi->mode & SPI_CPHA)
-			command |= SLINK_CK_SDA;
-
-		if (spi->mode & SPI_CPOL)
-			command |= SLINK_IDLE_SCLK_DRIVE_HIGH;
-		else
-			command |= SLINK_IDLE_SCLK_DRIVE_LOW;
-	} else {
-		command = tspi->command_reg;
-		command &= ~SLINK_BIT_LENGTH(~0);
-		command |= SLINK_BIT_LENGTH(bits_per_word - 1);
-
-		command2 = tspi->command2_reg;
-		command2 &= ~(SLINK_RXEN | SLINK_TXEN);
-	}
+	command2 = tspi->command2_reg;
+	command2 &= ~(SLINK_RXEN | SLINK_TXEN);
 
 	tegra_slink_writel(tspi, command, SLINK_COMMAND);
 	tspi->command_reg = command;
@@ -828,8 +807,24 @@ static int tegra_slink_prepare_message(struct spi_master *master,
 				       struct spi_message *msg)
 {
 	struct tegra_slink_data *tspi = spi_master_get_devdata(master);
+	struct spi_device *spi = msg->spi;
 
-	tspi->is_first_msg = true;
+	tegra_slink_clear_status(tspi);
+
+	tspi->command_reg = tspi->def_command_reg;
+	tspi->command_reg |= SLINK_CS_SW | SLINK_CS_VALUE;
+
+	tspi->command2_reg = tspi->def_command2_reg;
+	tspi->command2_reg |= SLINK_SS_EN_CS(spi->chip_select);
+
+	tspi->command_reg &= ~SLINK_MODES;
+	if (spi->mode & SPI_CPHA)
+		tspi->command_reg |= SLINK_CK_SDA;
+
+	if (spi->mode & SPI_CPOL)
+		tspi->command_reg |= SLINK_IDLE_SCLK_DRIVE_HIGH;
+	else
+		tspi->command_reg |= SLINK_IDLE_SCLK_DRIVE_LOW;
 
 	return 0;
 }
@@ -842,13 +837,13 @@ static int tegra_slink_transfer_one(struct spi_master *master,
 	int ret;
 
 	INIT_COMPLETION(tspi->xfer_completion);
-	ret = tegra_slink_start_transfer_one(spi, xfer, tspi->is_first_msg);
+	ret = tegra_slink_start_transfer_one(spi, xfer);
 	if (ret < 0) {
 		dev_err(tspi->dev,
 			"spi can not start transfer, err %d\n", ret);
 		return ret;
 	}
-	tspi->is_first_msg = false;
+
 	ret = wait_for_completion_timeout(&tspi->xfer_completion,
 					  SLINK_DMA_TIMEOUT);
 	if (WARN_ON(ret == 0)) {
-- 
cgit 


From cf4671559fdc0550de38fc8f6cd0ea6369736f1f Mon Sep 17 00:00:00 2001
From: Lukasz Majewski <l.majewski@samsung.com>
Date: Wed, 9 Oct 2013 14:08:42 +0200
Subject: cpufreq: exynos4x12: Use the common clock framework to set APLL clock
 rate

In the exynos4x12_set_apll() function, the APLL frequency is set with
direct register manipulation.

Such approach is not allowed in the common clock framework. The frequency
is changed, but the corresponding clock value is not updated. This causes
wrong frequency read from cpufreq's cpuinfo_cur_freq sysfs attribute.

Also direct manipulation with PLL's S parameter has been removed. It is
already done at PLL35xx code.

Tested at:
- Exynos4412 - Trats2 board (linux 3.12-rc4)

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Reviewed-by: Yadwinder Singh Brar <yadi.brar@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/exynos4x12-cpufreq.c | 69 +++++-------------------------------
 1 file changed, 8 insertions(+), 61 deletions(-)

diff --git a/drivers/cpufreq/exynos4x12-cpufreq.c b/drivers/cpufreq/exynos4x12-cpufreq.c
index 08b7477b0aa2..8683304ce62c 100644
--- a/drivers/cpufreq/exynos4x12-cpufreq.c
+++ b/drivers/cpufreq/exynos4x12-cpufreq.c
@@ -128,9 +128,9 @@ static void exynos4x12_set_clkdiv(unsigned int div_index)
 
 static void exynos4x12_set_apll(unsigned int index)
 {
-	unsigned int tmp, pdiv;
+	unsigned int tmp, freq = apll_freq_4x12[index].freq;
 
-	/* 1. MUX_CORE_SEL = MPLL, ARMCLK uses MPLL for lock time */
+	/* MUX_CORE_SEL = MPLL, ARMCLK uses MPLL for lock time */
 	clk_set_parent(moutcore, mout_mpll);
 
 	do {
@@ -140,24 +140,9 @@ static void exynos4x12_set_apll(unsigned int index)
 		tmp &= 0x7;
 	} while (tmp != 0x2);
 
-	/* 2. Set APLL Lock time */
-	pdiv = ((apll_freq_4x12[index].mps >> 8) & 0x3f);
+	clk_set_rate(mout_apll, freq * 1000);
 
-	__raw_writel((pdiv * 250), EXYNOS4_APLL_LOCK);
-
-	/* 3. Change PLL PMS values */
-	tmp = __raw_readl(EXYNOS4_APLL_CON0);
-	tmp &= ~((0x3ff << 16) | (0x3f << 8) | (0x7 << 0));
-	tmp |= apll_freq_4x12[index].mps;
-	__raw_writel(tmp, EXYNOS4_APLL_CON0);
-
-	/* 4. wait_lock_time */
-	do {
-		cpu_relax();
-		tmp = __raw_readl(EXYNOS4_APLL_CON0);
-	} while (!(tmp & (0x1 << EXYNOS4_APLLCON0_LOCKED_SHIFT)));
-
-	/* 5. MUX_CORE_SEL = APLL */
+	/* MUX_CORE_SEL = APLL */
 	clk_set_parent(moutcore, mout_apll);
 
 	do {
@@ -167,52 +152,15 @@ static void exynos4x12_set_apll(unsigned int index)
 	} while (tmp != (0x1 << EXYNOS4_CLKSRC_CPU_MUXCORE_SHIFT));
 }
 
-static bool exynos4x12_pms_change(unsigned int old_index, unsigned int new_index)
-{
-	unsigned int old_pm = apll_freq_4x12[old_index].mps >> 8;
-	unsigned int new_pm = apll_freq_4x12[new_index].mps >> 8;
-
-	return (old_pm == new_pm) ? 0 : 1;
-}
-
 static void exynos4x12_set_frequency(unsigned int old_index,
 				  unsigned int new_index)
 {
-	unsigned int tmp;
-
 	if (old_index > new_index) {
-		if (!exynos4x12_pms_change(old_index, new_index)) {
-			/* 1. Change the system clock divider values */
-			exynos4x12_set_clkdiv(new_index);
-			/* 2. Change just s value in apll m,p,s value */
-			tmp = __raw_readl(EXYNOS4_APLL_CON0);
-			tmp &= ~(0x7 << 0);
-			tmp |= apll_freq_4x12[new_index].mps & 0x7;
-			__raw_writel(tmp, EXYNOS4_APLL_CON0);
-
-		} else {
-			/* Clock Configuration Procedure */
-			/* 1. Change the system clock divider values */
-			exynos4x12_set_clkdiv(new_index);
-			/* 2. Change the apll m,p,s value */
-			exynos4x12_set_apll(new_index);
-		}
+		exynos4x12_set_clkdiv(new_index);
+		exynos4x12_set_apll(new_index);
 	} else if (old_index < new_index) {
-		if (!exynos4x12_pms_change(old_index, new_index)) {
-			/* 1. Change just s value in apll m,p,s value */
-			tmp = __raw_readl(EXYNOS4_APLL_CON0);
-			tmp &= ~(0x7 << 0);
-			tmp |= apll_freq_4x12[new_index].mps & 0x7;
-			__raw_writel(tmp, EXYNOS4_APLL_CON0);
-			/* 2. Change the system clock divider values */
-			exynos4x12_set_clkdiv(new_index);
-		} else {
-			/* Clock Configuration Procedure */
-			/* 1. Change the apll m,p,s value */
-			exynos4x12_set_apll(new_index);
-			/* 2. Change the system clock divider values */
-			exynos4x12_set_clkdiv(new_index);
-		}
+		exynos4x12_set_apll(new_index);
+		exynos4x12_set_clkdiv(new_index);
 	}
 }
 
@@ -250,7 +198,6 @@ int exynos4x12_cpufreq_init(struct exynos_dvfs_info *info)
 	info->volt_table = exynos4x12_volt_table;
 	info->freq_table = exynos4x12_freq_table;
 	info->set_freq = exynos4x12_set_frequency;
-	info->need_apll_change = exynos4x12_pms_change;
 
 	return 0;
 
-- 
cgit 


From 7ad65d592b0a7f70fe21af2e3d4d02c76333d5a0 Mon Sep 17 00:00:00 2001
From: Lukasz Majewski <l.majewski@samsung.com>
Date: Wed, 9 Oct 2013 14:08:43 +0200
Subject: cpufreq: exynos4210: Use the common clock framework to set APLL clock
 rate

In the exynos4210_set_apll() function, the APLL frequency is set with
direct register manipulation.

Such approach is not allowed in the common clock framework. The frequency
is changed, but the corresponding clock value is not updated. This causes
wrong frequency read from cpufreq's cpuinfo_cur_freq sysfs attribute.

Also direct manipulation with PLL's S parameter has been removed. It is
already done at PLL35xx code.

Tested at:
- Exynos4210 - Trats board (linux 3.12-rc4)

Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
Reviewed-by: Yadwinder Singh Brar <yadi.brar@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/exynos4210-cpufreq.c | 67 +++++-------------------------------
 1 file changed, 8 insertions(+), 59 deletions(-)

diff --git a/drivers/cpufreq/exynos4210-cpufreq.c b/drivers/cpufreq/exynos4210-cpufreq.c
index add7fbec4fc9..f2c75065ce19 100644
--- a/drivers/cpufreq/exynos4210-cpufreq.c
+++ b/drivers/cpufreq/exynos4210-cpufreq.c
@@ -81,9 +81,9 @@ static void exynos4210_set_clkdiv(unsigned int div_index)
 
 static void exynos4210_set_apll(unsigned int index)
 {
-	unsigned int tmp;
+	unsigned int tmp, freq = apll_freq_4210[index].freq;
 
-	/* 1. MUX_CORE_SEL = MPLL, ARMCLK uses MPLL for lock time */
+	/* MUX_CORE_SEL = MPLL, ARMCLK uses MPLL for lock time */
 	clk_set_parent(moutcore, mout_mpll);
 
 	do {
@@ -92,21 +92,9 @@ static void exynos4210_set_apll(unsigned int index)
 		tmp &= 0x7;
 	} while (tmp != 0x2);
 
-	/* 2. Set APLL Lock time */
-	__raw_writel(EXYNOS4_APLL_LOCKTIME, EXYNOS4_APLL_LOCK);
-
-	/* 3. Change PLL PMS values */
-	tmp = __raw_readl(EXYNOS4_APLL_CON0);
-	tmp &= ~((0x3ff << 16) | (0x3f << 8) | (0x7 << 0));
-	tmp |= apll_freq_4210[index].mps;
-	__raw_writel(tmp, EXYNOS4_APLL_CON0);
+	clk_set_rate(mout_apll, freq * 1000);
 
-	/* 4. wait_lock_time */
-	do {
-		tmp = __raw_readl(EXYNOS4_APLL_CON0);
-	} while (!(tmp & (0x1 << EXYNOS4_APLLCON0_LOCKED_SHIFT)));
-
-	/* 5. MUX_CORE_SEL = APLL */
+	/* MUX_CORE_SEL = APLL */
 	clk_set_parent(moutcore, mout_apll);
 
 	do {
@@ -115,53 +103,15 @@ static void exynos4210_set_apll(unsigned int index)
 	} while (tmp != (0x1 << EXYNOS4_CLKSRC_CPU_MUXCORE_SHIFT));
 }
 
-static bool exynos4210_pms_change(unsigned int old_index, unsigned int new_index)
-{
-	unsigned int old_pm = apll_freq_4210[old_index].mps >> 8;
-	unsigned int new_pm = apll_freq_4210[new_index].mps >> 8;
-
-	return (old_pm == new_pm) ? 0 : 1;
-}
-
 static void exynos4210_set_frequency(unsigned int old_index,
 				     unsigned int new_index)
 {
-	unsigned int tmp;
-
 	if (old_index > new_index) {
-		if (!exynos4210_pms_change(old_index, new_index)) {
-			/* 1. Change the system clock divider values */
-			exynos4210_set_clkdiv(new_index);
-
-			/* 2. Change just s value in apll m,p,s value */
-			tmp = __raw_readl(EXYNOS4_APLL_CON0);
-			tmp &= ~(0x7 << 0);
-			tmp |= apll_freq_4210[new_index].mps & 0x7;
-			__raw_writel(tmp, EXYNOS4_APLL_CON0);
-		} else {
-			/* Clock Configuration Procedure */
-			/* 1. Change the system clock divider values */
-			exynos4210_set_clkdiv(new_index);
-			/* 2. Change the apll m,p,s value */
-			exynos4210_set_apll(new_index);
-		}
+		exynos4210_set_clkdiv(new_index);
+		exynos4210_set_apll(new_index);
 	} else if (old_index < new_index) {
-		if (!exynos4210_pms_change(old_index, new_index)) {
-			/* 1. Change just s value in apll m,p,s value */
-			tmp = __raw_readl(EXYNOS4_APLL_CON0);
-			tmp &= ~(0x7 << 0);
-			tmp |= apll_freq_4210[new_index].mps & 0x7;
-			__raw_writel(tmp, EXYNOS4_APLL_CON0);
-
-			/* 2. Change the system clock divider values */
-			exynos4210_set_clkdiv(new_index);
-		} else {
-			/* Clock Configuration Procedure */
-			/* 1. Change the apll m,p,s value */
-			exynos4210_set_apll(new_index);
-			/* 2. Change the system clock divider values */
-			exynos4210_set_clkdiv(new_index);
-		}
+		exynos4210_set_apll(new_index);
+		exynos4210_set_clkdiv(new_index);
 	}
 }
 
@@ -194,7 +144,6 @@ int exynos4210_cpufreq_init(struct exynos_dvfs_info *info)
 	info->volt_table = exynos4210_volt_table;
 	info->freq_table = exynos4210_freq_table;
 	info->set_freq = exynos4210_set_frequency;
-	info->need_apll_change = exynos4210_pms_change;
 
 	return 0;
 
-- 
cgit 


From 420f9739a62cdb027f5580d25c813501ff93aa6f Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Wed, 16 Oct 2013 23:10:31 +0200
Subject: thinkpad-acpi: Add mute and mic-mute LED functionality

The LEDs are currently not visible to userspace, for security
reasons. They are exported through thinkpad_acpi.h for use by the
snd-hda-intel driver.

Thanks to Alex Hung <alex.hung@canonical.com> and Takashi Iwai
<tiwai@suse.de> for writing parts of this patch.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 Documentation/laptops/thinkpad-acpi.txt |  7 ++-
 drivers/platform/x86/thinkpad_acpi.c    | 92 ++++++++++++++++++++++++++++++++-
 include/linux/thinkpad_acpi.h           | 15 ++++++
 3 files changed, 111 insertions(+), 3 deletions(-)
 create mode 100644 include/linux/thinkpad_acpi.h

diff --git a/Documentation/laptops/thinkpad-acpi.txt b/Documentation/laptops/thinkpad-acpi.txt
index 86c52360ffe7..fc04c14de4bb 100644
--- a/Documentation/laptops/thinkpad-acpi.txt
+++ b/Documentation/laptops/thinkpad-acpi.txt
@@ -1,7 +1,7 @@
 		     ThinkPad ACPI Extras Driver
 
-                            Version 0.24
-                        December 11th,  2009
+                            Version 0.25
+                        October 16th,  2013
 
                Borislav Deianov <borislav@users.sf.net>
              Henrique de Moraes Holschuh <hmh@hmh.eng.br>
@@ -741,6 +741,9 @@ compiled with the CONFIG_THINKPAD_ACPI_UNSAFE_LEDS option enabled.
 Distributions must never enable this option.  Individual users that
 are aware of the consequences are welcome to enabling it.
 
+Audio mute and microphone mute LEDs are supported, but currently not
+visible to userspace. They are used by the snd-hda-intel audio driver.
+
 procfs notes:
 
 The available commands are:
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 03ca6c139f1a..0b7efb269cf1 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -23,7 +23,7 @@
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
-#define TPACPI_VERSION "0.24"
+#define TPACPI_VERSION "0.25"
 #define TPACPI_SYSFS_VERSION 0x020700
 
 /*
@@ -88,6 +88,7 @@
 
 #include <linux/pci_ids.h>
 
+#include <linux/thinkpad_acpi.h>
 
 /* ThinkPad CMOS commands */
 #define TP_CMOS_VOLUME_DOWN	0
@@ -8350,6 +8351,91 @@ static struct ibm_struct fan_driver_data = {
 	.resume = fan_resume,
 };
 
+/*************************************************************************
+ * Mute LED subdriver
+ */
+
+
+struct tp_led_table {
+	acpi_string name;
+	int on_value;
+	int off_value;
+	int state;
+};
+
+static struct tp_led_table led_tables[] = {
+	[TPACPI_LED_MUTE] = {
+		.name = "SSMS",
+		.on_value = 1,
+		.off_value = 0,
+	},
+	[TPACPI_LED_MICMUTE] = {
+		.name = "MMTS",
+		.on_value = 2,
+		.off_value = 0,
+	},
+};
+
+static int mute_led_on_off(struct tp_led_table *t, bool state)
+{
+	acpi_handle temp;
+	int output;
+
+	if (!ACPI_SUCCESS(acpi_get_handle(hkey_handle, t->name, &temp))) {
+		pr_warn("Thinkpad ACPI has no %s interface.\n", t->name);
+		return -EIO;
+	}
+
+	if (!acpi_evalf(hkey_handle, &output, t->name, "dd",
+			state ? t->on_value : t->off_value))
+		return -EIO;
+
+	t->state = state;
+	return state;
+}
+
+int tpacpi_led_set(int whichled, bool on)
+{
+	struct tp_led_table *t;
+
+	if (whichled < 0 || whichled >= TPACPI_LED_MAX)
+		return -EINVAL;
+
+	t = &led_tables[whichled];
+	if (t->state < 0 || t->state == on)
+		return t->state;
+	return mute_led_on_off(t, on);
+}
+EXPORT_SYMBOL_GPL(tpacpi_led_set);
+
+static int mute_led_init(struct ibm_init_struct *iibm)
+{
+	acpi_handle temp;
+	int i;
+
+	for (i = 0; i < TPACPI_LED_MAX; i++) {
+		struct tp_led_table *t = &led_tables[i];
+		if (ACPI_SUCCESS(acpi_get_handle(hkey_handle, t->name, &temp)))
+			mute_led_on_off(t, false);
+		else
+			t->state = -ENODEV;
+	}
+	return 0;
+}
+
+static void mute_led_exit(void)
+{
+	int i;
+
+	for (i = 0; i < TPACPI_LED_MAX; i++)
+		tpacpi_led_set(i, false);
+}
+
+static struct ibm_struct mute_led_driver_data = {
+	.name = "mute_led",
+	.exit = mute_led_exit,
+};
+
 /****************************************************************************
  ****************************************************************************
  *
@@ -8768,6 +8854,10 @@ static struct ibm_init_struct ibms_init[] __initdata = {
 		.init = fan_init,
 		.data = &fan_driver_data,
 	},
+	{
+		.init = mute_led_init,
+		.data = &mute_led_driver_data,
+	},
 };
 
 static int __init set_ibm_param(const char *val, struct kernel_param *kp)
diff --git a/include/linux/thinkpad_acpi.h b/include/linux/thinkpad_acpi.h
new file mode 100644
index 000000000000..361de59a2285
--- /dev/null
+++ b/include/linux/thinkpad_acpi.h
@@ -0,0 +1,15 @@
+#ifndef __THINKPAD_ACPI_H__
+#define __THINKPAD_ACPI_H__
+
+/* These two functions return 0 if success, or negative error code
+   (e g -ENODEV if no led present) */
+
+enum {
+	TPACPI_LED_MUTE,
+	TPACPI_LED_MICMUTE,
+	TPACPI_LED_MAX,
+};
+
+int tpacpi_led_set(int whichled, bool on);
+
+#endif
-- 
cgit 


From 360fec281e2012b405b5fac48449f69e4a049949 Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Wed, 16 Oct 2013 23:10:32 +0200
Subject: ALSA: hda - add HDA_FIXUP_ACT_FREE action

A fixup which should be called before codec being freed will come
to use in the next patch.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_local.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index 2e7493ef8ee0..a71bf348e389 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -428,6 +428,7 @@ enum {
 	HDA_FIXUP_ACT_PROBE,
 	HDA_FIXUP_ACT_INIT,
 	HDA_FIXUP_ACT_BUILD,
+	HDA_FIXUP_ACT_FREE,
 };
 
 int snd_hda_add_verbs(struct hda_codec *codec, const struct hda_verb *list);
-- 
cgit 


From 08cf680ccafd5df9885fbcd0cab85221df00b44b Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Wed, 16 Oct 2013 23:10:33 +0200
Subject: ALSA: hda - add connection to thinkpad_acpi to control mute/micmute
 LEDs

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_conexant.c | 92 +++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 90 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index ec68eaea0336..993b25c17711 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -3208,11 +3208,17 @@ static int cx_auto_init(struct hda_codec *codec)
 	return 0;
 }
 
+static void cx_auto_free(struct hda_codec *codec)
+{
+	snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_FREE);
+	snd_hda_gen_free(codec);
+}
+
 static const struct hda_codec_ops cx_auto_patch_ops = {
 	.build_controls = cx_auto_build_controls,
 	.build_pcms = snd_hda_gen_build_pcms,
 	.init = cx_auto_init,
-	.free = snd_hda_gen_free,
+	.free = cx_auto_free,
 	.unsol_event = snd_hda_jack_unsol_event,
 #ifdef CONFIG_PM
 	.check_power_status = snd_hda_gen_check_power_status,
@@ -3232,8 +3238,84 @@ enum {
 	CXT_FIXUP_HEADPHONE_MIC_PIN,
 	CXT_FIXUP_HEADPHONE_MIC,
 	CXT_FIXUP_GPIO1,
+	CXT_FIXUP_THINKPAD_ACPI,
 };
 
+#if IS_ENABLED(CONFIG_THINKPAD_ACPI)
+
+#include <linux/thinkpad_acpi.h>
+
+static int (*led_set_func)(int, bool);
+
+static void update_tpacpi_mute_led(void *private_data, int enabled)
+{
+	struct hda_codec *codec = private_data;
+	struct conexant_spec *spec = codec->spec;
+
+	if (spec->dynamic_eapd)
+		cx_auto_vmaster_hook(private_data, enabled);
+
+	if (led_set_func)
+		led_set_func(TPACPI_LED_MUTE, !enabled);
+}
+
+static void update_tpacpi_micmute_led(struct hda_codec *codec,
+				      struct snd_ctl_elem_value *ucontrol)
+{
+	if (!ucontrol || !led_set_func)
+		return;
+	if (strcmp("Capture Switch", ucontrol->id.name) == 0 && ucontrol->id.index == 0) {
+		/* TODO: How do I verify if it's a mono or stereo here? */
+		bool val = ucontrol->value.integer.value[0] || ucontrol->value.integer.value[1];
+		led_set_func(TPACPI_LED_MICMUTE, !val);
+	}
+}
+
+static void cxt_fixup_thinkpad_acpi(struct hda_codec *codec,
+				  const struct hda_fixup *fix, int action)
+{
+	struct conexant_spec *spec = codec->spec;
+
+	bool removefunc = false;
+
+	if (action == HDA_FIXUP_ACT_PROBE) {
+		if (!led_set_func)
+			led_set_func = symbol_request(tpacpi_led_set);
+		if (!led_set_func) {
+			snd_printk(KERN_WARNING "Failed to find thinkpad-acpi symbol tpacpi_led_set\n");
+			return;
+		}
+
+		removefunc = true;
+		if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
+			spec->gen.vmaster_mute.hook = update_tpacpi_mute_led;
+			removefunc = false;
+		}
+		if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) {
+			if (spec->gen.num_adc_nids > 1)
+				snd_printdd("Skipping micmute LED control due to several ADCs");
+			else {
+				spec->gen.cap_sync_hook = update_tpacpi_micmute_led;
+				removefunc = false;
+			}
+		}
+	}
+
+	if (led_set_func && (action == HDA_FIXUP_ACT_FREE || removefunc)) {
+		symbol_put(tpacpi_led_set);
+		led_set_func = NULL;
+	}
+}
+
+#else
+
+static void cxt_fixup_thinkpad_acpi(struct hda_codec *codec,
+				  const struct hda_fixup *fix, int action)
+{
+}
+
+#endif
+
 static void cxt_fixup_stereo_dmic(struct hda_codec *codec,
 				  const struct hda_fixup *fix, int action)
 {
@@ -3344,6 +3426,8 @@ static const struct hda_fixup cxt_fixups[] = {
 	[CXT_PINCFG_LENOVO_TP410] = {
 		.type = HDA_FIXUP_PINS,
 		.v.pins = cxt_pincfg_lenovo_tp410,
+		.chained = true,
+		.chain_id = CXT_FIXUP_THINKPAD_ACPI,
 	},
 	[CXT_PINCFG_LEMOTE_A1004] = {
 		.type = HDA_FIXUP_PINS,
@@ -3385,6 +3469,10 @@ static const struct hda_fixup cxt_fixups[] = {
 			{ }
 		},
 	},
+	[CXT_FIXUP_THINKPAD_ACPI] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = cxt_fixup_thinkpad_acpi,
+	},
 };
 
 static const struct snd_pci_quirk cxt5051_fixups[] = {
@@ -3507,7 +3595,7 @@ static int patch_conexant_auto(struct hda_codec *codec)
 	return 0;
 
  error:
-	snd_hda_gen_free(codec);
+	cx_auto_free(codec);
 	return err;
 }
 
-- 
cgit 


From 3b7834743f9492e3509930feb4ca47135905e640 Mon Sep 17 00:00:00 2001
From: Michael Neuling <mikey@neuling.org>
Date: Tue, 3 Sep 2013 11:13:12 +1000
Subject: KVM: PPC: Book3S HV: Reserve POWER8 space in get/set_one_reg

This reserves space in get/set_one_reg ioctl for the extra guest state
needed for POWER8.  It doesn't implement these at all, it just reserves
them so that the ABI is defined now.

A few things to note here:

- This add *a lot* state for transactional memory.  TM suspend mode,
  this is unavoidable, you can't simply roll back all transactions and
  store only the checkpointed state.  I've added this all to
  get/set_one_reg (including GPRs) rather than creating a new ioctl
  which returns a struct kvm_regs like KVM_GET_REGS does.  This means we
  if we need to extract the TM state, we are going to need a bucket load
  of IOCTLs.  Hopefully most of the time this will not be needed as we
  can look at the MSR to see if TM is active and only grab them when
  needed.  If this becomes a bottle neck in future we can add another
  ioctl to grab all this state in one go.

- The TM state is offset by 0x80000000.

- For TM, I've done away with VMX and FP and created a single 64x128 bit
  VSX register space.

- I've left a space of 1 (at 0x9c) since Paulus needs to add a value
  which applies to POWER7 as well.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 Documentation/virtual/kvm/api.txt   | 39 +++++++++++++++++++++++++++
 arch/powerpc/include/uapi/asm/kvm.h | 54 +++++++++++++++++++++++++++++++++++++
 2 files changed, 93 insertions(+)

diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index a89a5ee0b940..354a51ba456b 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -1810,6 +1810,45 @@ registers, find a list below:
   PPC   | KVM_REG_PPC_TLB3PS	| 32
   PPC   | KVM_REG_PPC_EPTCFG	| 32
   PPC   | KVM_REG_PPC_ICP_STATE | 64
+  PPC   | KVM_REG_PPC_SPMC1	| 32
+  PPC   | KVM_REG_PPC_SPMC2	| 32
+  PPC   | KVM_REG_PPC_IAMR	| 64
+  PPC   | KVM_REG_PPC_TFHAR	| 64
+  PPC   | KVM_REG_PPC_TFIAR	| 64
+  PPC   | KVM_REG_PPC_TEXASR	| 64
+  PPC   | KVM_REG_PPC_FSCR	| 64
+  PPC   | KVM_REG_PPC_PSPB	| 32
+  PPC   | KVM_REG_PPC_EBBHR	| 64
+  PPC   | KVM_REG_PPC_EBBRR	| 64
+  PPC   | KVM_REG_PPC_BESCR	| 64
+  PPC   | KVM_REG_PPC_TAR	| 64
+  PPC   | KVM_REG_PPC_DPDES	| 64
+  PPC   | KVM_REG_PPC_DAWR	| 64
+  PPC   | KVM_REG_PPC_DAWRX	| 64
+  PPC   | KVM_REG_PPC_CIABR	| 64
+  PPC   | KVM_REG_PPC_IC	| 64
+  PPC   | KVM_REG_PPC_VTB	| 64
+  PPC   | KVM_REG_PPC_CSIGR	| 64
+  PPC   | KVM_REG_PPC_TACR	| 64
+  PPC   | KVM_REG_PPC_TCSCR	| 64
+  PPC   | KVM_REG_PPC_PID	| 64
+  PPC   | KVM_REG_PPC_ACOP	| 64
+  PPC   | KVM_REG_PPC_TM_GPR0	| 64
+          ...
+  PPC   | KVM_REG_PPC_TM_GPR31	| 64
+  PPC   | KVM_REG_PPC_TM_VSR0	| 128
+          ...
+  PPC   | KVM_REG_PPC_TM_VSR63	| 128
+  PPC   | KVM_REG_PPC_TM_CR	| 64
+  PPC   | KVM_REG_PPC_TM_LR	| 64
+  PPC   | KVM_REG_PPC_TM_CTR	| 64
+  PPC   | KVM_REG_PPC_TM_FPSCR	| 64
+  PPC   | KVM_REG_PPC_TM_AMR	| 64
+  PPC   | KVM_REG_PPC_TM_PPR	| 64
+  PPC   | KVM_REG_PPC_TM_VRSAVE	| 64
+  PPC   | KVM_REG_PPC_TM_VSCR	| 32
+  PPC   | KVM_REG_PPC_TM_DSCR	| 64
+  PPC   | KVM_REG_PPC_TM_TAR	| 64
 
 ARM registers are mapped using the lower 32 bits.  The upper 16 of that
 is the register group type, or coprocessor number:
diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h
index 0fb1a6e9ff90..7ed41c0b4045 100644
--- a/arch/powerpc/include/uapi/asm/kvm.h
+++ b/arch/powerpc/include/uapi/asm/kvm.h
@@ -429,6 +429,11 @@ struct kvm_get_htab_header {
 #define KVM_REG_PPC_MMCR0	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0x10)
 #define KVM_REG_PPC_MMCR1	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0x11)
 #define KVM_REG_PPC_MMCRA	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0x12)
+#define KVM_REG_PPC_MMCR2	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0x13)
+#define KVM_REG_PPC_MMCRS	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0x14)
+#define KVM_REG_PPC_SIAR	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0x15)
+#define KVM_REG_PPC_SDAR	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0x16)
+#define KVM_REG_PPC_SIER	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0x17)
 
 #define KVM_REG_PPC_PMC1	(KVM_REG_PPC | KVM_REG_SIZE_U32 | 0x18)
 #define KVM_REG_PPC_PMC2	(KVM_REG_PPC | KVM_REG_SIZE_U32 | 0x19)
@@ -499,6 +504,55 @@ struct kvm_get_htab_header {
 #define KVM_REG_PPC_TLB3PS	(KVM_REG_PPC | KVM_REG_SIZE_U32 | 0x9a)
 #define KVM_REG_PPC_EPTCFG	(KVM_REG_PPC | KVM_REG_SIZE_U32 | 0x9b)
 
+/* POWER8 registers */
+#define KVM_REG_PPC_SPMC1	(KVM_REG_PPC | KVM_REG_SIZE_U32 | 0x9d)
+#define KVM_REG_PPC_SPMC2	(KVM_REG_PPC | KVM_REG_SIZE_U32 | 0x9e)
+#define KVM_REG_PPC_IAMR	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0x9f)
+#define KVM_REG_PPC_TFHAR	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xa0)
+#define KVM_REG_PPC_TFIAR	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xa1)
+#define KVM_REG_PPC_TEXASR	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xa2)
+#define KVM_REG_PPC_FSCR	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xa3)
+#define KVM_REG_PPC_PSPB	(KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xa4)
+#define KVM_REG_PPC_EBBHR	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xa5)
+#define KVM_REG_PPC_EBBRR	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xa6)
+#define KVM_REG_PPC_BESCR	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xa7)
+#define KVM_REG_PPC_TAR		(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xa8)
+#define KVM_REG_PPC_DPDES	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xa9)
+#define KVM_REG_PPC_DAWR	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xaa)
+#define KVM_REG_PPC_DAWRX	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xab)
+#define KVM_REG_PPC_CIABR	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xac)
+#define KVM_REG_PPC_IC		(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xad)
+#define KVM_REG_PPC_VTB		(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xae)
+#define KVM_REG_PPC_CSIGR	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xaf)
+#define KVM_REG_PPC_TACR	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xb0)
+#define KVM_REG_PPC_TCSCR	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xb1)
+#define KVM_REG_PPC_PID		(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xb2)
+#define KVM_REG_PPC_ACOP	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xb3)
+
+/* Transactional Memory checkpointed state:
+ * This is all GPRs, all VSX regs and a subset of SPRs
+ */
+#define KVM_REG_PPC_TM		(KVM_REG_PPC | 0x80000000)
+/* TM GPRs */
+#define KVM_REG_PPC_TM_GPR0	(KVM_REG_PPC_TM | KVM_REG_SIZE_U64 | 0)
+#define KVM_REG_PPC_TM_GPR(n)	(KVM_REG_PPC_TM_GPR0 + (n))
+#define KVM_REG_PPC_TM_GPR31	(KVM_REG_PPC_TM | KVM_REG_SIZE_U64 | 0x1f)
+/* TM VSX */
+#define KVM_REG_PPC_TM_VSR0	(KVM_REG_PPC_TM | KVM_REG_SIZE_U128 | 0x20)
+#define KVM_REG_PPC_TM_VSR(n)	(KVM_REG_PPC_TM_VSR0 + (n))
+#define KVM_REG_PPC_TM_VSR63	(KVM_REG_PPC_TM | KVM_REG_SIZE_U128 | 0x5f)
+/* TM SPRS */
+#define KVM_REG_PPC_TM_CR	(KVM_REG_PPC_TM | KVM_REG_SIZE_U64 | 0x60)
+#define KVM_REG_PPC_TM_LR	(KVM_REG_PPC_TM | KVM_REG_SIZE_U64 | 0x61)
+#define KVM_REG_PPC_TM_CTR	(KVM_REG_PPC_TM | KVM_REG_SIZE_U64 | 0x62)
+#define KVM_REG_PPC_TM_FPSCR	(KVM_REG_PPC_TM | KVM_REG_SIZE_U64 | 0x63)
+#define KVM_REG_PPC_TM_AMR	(KVM_REG_PPC_TM | KVM_REG_SIZE_U64 | 0x64)
+#define KVM_REG_PPC_TM_PPR	(KVM_REG_PPC_TM | KVM_REG_SIZE_U64 | 0x65)
+#define KVM_REG_PPC_TM_VRSAVE	(KVM_REG_PPC_TM | KVM_REG_SIZE_U64 | 0x66)
+#define KVM_REG_PPC_TM_VSCR	(KVM_REG_PPC_TM | KVM_REG_SIZE_U32 | 0x67)
+#define KVM_REG_PPC_TM_DSCR	(KVM_REG_PPC_TM | KVM_REG_SIZE_U64 | 0x68)
+#define KVM_REG_PPC_TM_TAR	(KVM_REG_PPC_TM | KVM_REG_SIZE_U64 | 0x69)
+
 /* PPC64 eXternal Interrupt Controller Specification */
 #define KVM_DEV_XICS_GRP_SOURCES	1	/* 64-bit source attributes */
 
-- 
cgit 


From 14941789f2a13cd89e2dd567c4f708e571ab714e Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 6 Sep 2013 13:11:18 +1000
Subject: KVM: PPC: Book3S HV: Save/restore SIAR and SDAR along with other PMU
 registers

Currently we are not saving and restoring the SIAR and SDAR registers in
the PMU (performance monitor unit) on guest entry and exit.  The result
is that performance monitoring tools in the guest could get false
information about where a program was executing and what data it was
accessing at the time of a performance monitor interrupt.  This fixes
it by saving and restoring these registers along with the other PMU
registers on guest entry/exit.

This also provides a way for userspace to access these values for a
vcpu via the one_reg interface.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/kvm_host.h     |  2 ++
 arch/powerpc/kernel/asm-offsets.c       |  2 ++
 arch/powerpc/kvm/book3s_hv.c            | 12 ++++++++++++
 arch/powerpc/kvm/book3s_hv_rmhandlers.S |  8 ++++++++
 4 files changed, 24 insertions(+)

diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 0866230b7c2d..d9b21af62610 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -493,6 +493,8 @@ struct kvm_vcpu_arch {
 
 	u64 mmcr[3];
 	u32 pmc[8];
+	u64 siar;
+	u64 sdar;
 
 #ifdef CONFIG_KVM_EXIT_TIMING
 	struct mutex exit_timing_lock;
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index d8958be5f31a..19e699d747b7 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -508,6 +508,8 @@ int main(void)
 	DEFINE(VCPU_PRODDED, offsetof(struct kvm_vcpu, arch.prodded));
 	DEFINE(VCPU_MMCR, offsetof(struct kvm_vcpu, arch.mmcr));
 	DEFINE(VCPU_PMC, offsetof(struct kvm_vcpu, arch.pmc));
+	DEFINE(VCPU_SIAR, offsetof(struct kvm_vcpu, arch.siar));
+	DEFINE(VCPU_SDAR, offsetof(struct kvm_vcpu, arch.sdar));
 	DEFINE(VCPU_SLB, offsetof(struct kvm_vcpu, arch.slb));
 	DEFINE(VCPU_SLB_MAX, offsetof(struct kvm_vcpu, arch.slb_max));
 	DEFINE(VCPU_SLB_NR, offsetof(struct kvm_vcpu, arch.slb_nr));
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 62a2b5ab08ed..45a9b876b0a0 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -749,6 +749,12 @@ int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
 		i = id - KVM_REG_PPC_PMC1;
 		*val = get_reg_val(id, vcpu->arch.pmc[i]);
 		break;
+	case KVM_REG_PPC_SIAR:
+		*val = get_reg_val(id, vcpu->arch.siar);
+		break;
+	case KVM_REG_PPC_SDAR:
+		*val = get_reg_val(id, vcpu->arch.sdar);
+		break;
 #ifdef CONFIG_VSX
 	case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
 		if (cpu_has_feature(CPU_FTR_VSX)) {
@@ -833,6 +839,12 @@ int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
 		i = id - KVM_REG_PPC_PMC1;
 		vcpu->arch.pmc[i] = set_reg_val(id, *val);
 		break;
+	case KVM_REG_PPC_SIAR:
+		vcpu->arch.siar = set_reg_val(id, *val);
+		break;
+	case KVM_REG_PPC_SDAR:
+		vcpu->arch.sdar = set_reg_val(id, *val);
+		break;
 #ifdef CONFIG_VSX
 	case KVM_REG_PPC_FPR0 ... KVM_REG_PPC_FPR31:
 		if (cpu_has_feature(CPU_FTR_VSX)) {
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 294b7af28cdd..541aea0ce91a 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -200,8 +200,12 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
 	ld	r3, VCPU_MMCR(r4)
 	ld	r5, VCPU_MMCR + 8(r4)
 	ld	r6, VCPU_MMCR + 16(r4)
+	ld	r7, VCPU_SIAR(r4)
+	ld	r8, VCPU_SDAR(r4)
 	mtspr	SPRN_MMCR1, r5
 	mtspr	SPRN_MMCRA, r6
+	mtspr	SPRN_SIAR, r7
+	mtspr	SPRN_SDAR, r8
 	mtspr	SPRN_MMCR0, r3
 	isync
 
@@ -1134,9 +1138,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
 	std	r3, VCPU_MMCR(r9)	/* if not, set saved MMCR0 to FC */
 	b	22f
 21:	mfspr	r5, SPRN_MMCR1
+	mfspr	r7, SPRN_SIAR
+	mfspr	r8, SPRN_SDAR
 	std	r4, VCPU_MMCR(r9)
 	std	r5, VCPU_MMCR + 8(r9)
 	std	r6, VCPU_MMCR + 16(r9)
+	std	r7, VCPU_SIAR(r9)
+	std	r8, VCPU_SDAR(r9)
 	mfspr	r3, SPRN_PMC1
 	mfspr	r4, SPRN_PMC2
 	mfspr	r5, SPRN_PMC3
-- 
cgit 


From 93b0f4dc29c5f077a1c97bd1d484147230c3779a Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 6 Sep 2013 13:17:46 +1000
Subject: KVM: PPC: Book3S HV: Implement timebase offset for guests

This allows guests to have a different timebase origin from the host.
This is needed for migration, where a guest can migrate from one host
to another and the two hosts might have a different timebase origin.
However, the timebase seen by the guest must not go backwards, and
should go forwards only by a small amount corresponding to the time
taken for the migration.

Therefore this provides a new per-vcpu value accessed via the one_reg
interface using the new KVM_REG_PPC_TB_OFFSET identifier.  This value
defaults to 0 and is not modified by KVM.  On entering the guest, this
value is added onto the timebase, and on exiting the guest, it is
subtracted from the timebase.

This is only supported for recent POWER hardware which has the TBU40
(timebase upper 40 bits) register.  Writing to the TBU40 register only
alters the upper 40 bits of the timebase, leaving the lower 24 bits
unchanged.  This provides a way to modify the timebase for guest
migration without disturbing the synchronization of the timebase
registers across CPU cores.  The kernel rounds up the value given
to a multiple of 2^24.

Timebase values stored in KVM structures (struct kvm_vcpu, struct
kvmppc_vcore, etc.) are stored as host timebase values.  The timebase
values in the dispatch trace log need to be guest timebase values,
however, since that is read directly by the guest.  This moves the
setting of vcpu->arch.dec_expires on guest exit to a point after we
have restored the host timebase so that vcpu->arch.dec_expires is a
host timebase value.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 Documentation/virtual/kvm/api.txt       |  1 +
 arch/powerpc/include/asm/kvm_host.h     |  1 +
 arch/powerpc/include/asm/reg.h          |  1 +
 arch/powerpc/include/uapi/asm/kvm.h     |  3 ++
 arch/powerpc/kernel/asm-offsets.c       |  1 +
 arch/powerpc/kvm/book3s_hv.c            | 10 ++++++-
 arch/powerpc/kvm/book3s_hv_rmhandlers.S | 50 +++++++++++++++++++++++++++------
 7 files changed, 57 insertions(+), 10 deletions(-)

diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 354a51ba456b..e43c6f14c225 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -1810,6 +1810,7 @@ registers, find a list below:
   PPC   | KVM_REG_PPC_TLB3PS	| 32
   PPC   | KVM_REG_PPC_EPTCFG	| 32
   PPC   | KVM_REG_PPC_ICP_STATE | 64
+  PPC   | KVM_REG_PPC_TB_OFFSET	| 64
   PPC   | KVM_REG_PPC_SPMC1	| 32
   PPC   | KVM_REG_PPC_SPMC2	| 32
   PPC   | KVM_REG_PPC_IAMR	| 64
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index d9b21af62610..e4d67a606e43 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -289,6 +289,7 @@ struct kvmppc_vcore {
 	u64 stolen_tb;
 	u64 preempt_tb;
 	struct kvm_vcpu *runner;
+	u64 tb_offset;		/* guest timebase - host timebase */
 };
 
 #define VCORE_ENTRY_COUNT(vc)	((vc)->entry_exit_count & 0xff)
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 10d1ef016bf1..fd4db15e6f2a 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -243,6 +243,7 @@
 #define SPRN_TBRU	0x10D	/* Time Base Read Upper Register (user, R/O) */
 #define SPRN_TBWL	0x11C	/* Time Base Lower Register (super, R/W) */
 #define SPRN_TBWU	0x11D	/* Time Base Upper Register (super, R/W) */
+#define SPRN_TBU40	0x11E	/* Timebase upper 40 bits (hyper, R/W) */
 #define SPRN_SPURR	0x134	/* Scaled PURR */
 #define SPRN_HSPRG0	0x130	/* Hypervisor Scratch 0 */
 #define SPRN_HSPRG1	0x131	/* Hypervisor Scratch 1 */
diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h
index 7ed41c0b4045..a8124fe93fb9 100644
--- a/arch/powerpc/include/uapi/asm/kvm.h
+++ b/arch/powerpc/include/uapi/asm/kvm.h
@@ -504,6 +504,9 @@ struct kvm_get_htab_header {
 #define KVM_REG_PPC_TLB3PS	(KVM_REG_PPC | KVM_REG_SIZE_U32 | 0x9a)
 #define KVM_REG_PPC_EPTCFG	(KVM_REG_PPC | KVM_REG_SIZE_U32 | 0x9b)
 
+/* Timebase offset */
+#define KVM_REG_PPC_TB_OFFSET	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0x9c)
+
 /* POWER8 registers */
 #define KVM_REG_PPC_SPMC1	(KVM_REG_PPC | KVM_REG_SIZE_U32 | 0x9d)
 #define KVM_REG_PPC_SPMC2	(KVM_REG_PPC | KVM_REG_SIZE_U32 | 0x9e)
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 19e699d747b7..34d63d871917 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -523,6 +523,7 @@ int main(void)
 	DEFINE(VCORE_NAP_COUNT, offsetof(struct kvmppc_vcore, nap_count));
 	DEFINE(VCORE_IN_GUEST, offsetof(struct kvmppc_vcore, in_guest));
 	DEFINE(VCORE_NAPPING_THREADS, offsetof(struct kvmppc_vcore, napping_threads));
+	DEFINE(VCORE_TB_OFFSET, offsetof(struct kvmppc_vcore, tb_offset));
 	DEFINE(VCPU_SVCPU, offsetof(struct kvmppc_vcpu_book3s, shadow_vcpu) -
 			   offsetof(struct kvmppc_vcpu_book3s, vcpu));
 	DEFINE(VCPU_SLB_E, offsetof(struct kvmppc_slb, orige));
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 45a9b876b0a0..56f57af7e738 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -489,7 +489,7 @@ static void kvmppc_create_dtl_entry(struct kvm_vcpu *vcpu,
 	memset(dt, 0, sizeof(struct dtl_entry));
 	dt->dispatch_reason = 7;
 	dt->processor_id = vc->pcpu + vcpu->arch.ptid;
-	dt->timebase = now;
+	dt->timebase = now + vc->tb_offset;
 	dt->enqueue_to_dispatch_time = stolen;
 	dt->srr0 = kvmppc_get_pc(vcpu);
 	dt->srr1 = vcpu->arch.shregs.msr;
@@ -793,6 +793,9 @@ int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
 		val->vpaval.length = vcpu->arch.dtl.len;
 		spin_unlock(&vcpu->arch.vpa_update_lock);
 		break;
+	case KVM_REG_PPC_TB_OFFSET:
+		*val = get_reg_val(id, vcpu->arch.vcore->tb_offset);
+		break;
 	default:
 		r = -EINVAL;
 		break;
@@ -892,6 +895,11 @@ int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
 		len -= len % sizeof(struct dtl_entry);
 		r = set_vpa(vcpu, &vcpu->arch.dtl, addr, len);
 		break;
+	case KVM_REG_PPC_TB_OFFSET:
+		/* round up to multiple of 2^24 */
+		vcpu->arch.vcore->tb_offset =
+			ALIGN(set_reg_val(id, *val), 1UL << 24);
+		break;
 	default:
 		r = -EINVAL;
 		break;
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 541aea0ce91a..82b06dfe2d27 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -347,7 +347,22 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
 	bdnz	28b
 	ptesync
 
-22:	li	r0,1
+	/* Add timebase offset onto timebase */
+22:	ld	r8,VCORE_TB_OFFSET(r5)
+	cmpdi	r8,0
+	beq	37f
+	mftb	r6		/* current host timebase */
+	add	r8,r8,r6
+	mtspr	SPRN_TBU40,r8	/* update upper 40 bits */
+	mftb	r7		/* check if lower 24 bits overflowed */
+	clrldi	r6,r6,40
+	clrldi	r7,r7,40
+	cmpld	r7,r6
+	bge	37f
+	addis	r8,r8,0x100	/* if so, increment upper 40 bits */
+	mtspr	SPRN_TBU40,r8
+
+37:	li	r0,1
 	stb	r0,VCORE_IN_GUEST(r5)	/* signal secondaries to continue */
 	b	10f
 
@@ -782,13 +797,6 @@ ext_stash_for_host:
 ext_interrupt_to_host:
 
 guest_exit_cont:		/* r9 = vcpu, r12 = trap, r13 = paca */
-	/* Save DEC */
-	mfspr	r5,SPRN_DEC
-	mftb	r6
-	extsw	r5,r5
-	add	r5,r5,r6
-	std	r5,VCPU_DEC_EXPIRES(r9)
-
 	/* Save more register state  */
 	mfdar	r6
 	mfdsisr	r7
@@ -958,7 +966,24 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
 	mtspr	SPRN_SDR1,r6		/* switch to partition page table */
 	mtspr	SPRN_LPID,r7
 	isync
-	li	r0,0
+
+	/* Subtract timebase offset from timebase */
+	ld	r8,VCORE_TB_OFFSET(r5)
+	cmpdi	r8,0
+	beq	17f
+	mftb	r6			/* current host timebase */
+	subf	r8,r8,r6
+	mtspr	SPRN_TBU40,r8		/* update upper 40 bits */
+	mftb	r7			/* check if lower 24 bits overflowed */
+	clrldi	r6,r6,40
+	clrldi	r7,r7,40
+	cmpld	r7,r6
+	bge	17f
+	addis	r8,r8,0x100		/* if so, increment upper 40 bits */
+	mtspr	SPRN_TBU40,r8
+
+	/* Signal secondary CPUs to continue */
+17:	li	r0,0
 	stb	r0,VCORE_IN_GUEST(r5)
 	lis	r8,0x7fff		/* MAX_INT@h */
 	mtspr	SPRN_HDEC,r8
@@ -1056,6 +1081,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
 1:	addi	r8,r8,16
 	.endr
 
+	/* Save DEC */
+	mfspr	r5,SPRN_DEC
+	mftb	r6
+	extsw	r5,r5
+	add	r5,r5,r6
+	std	r5,VCPU_DEC_EXPIRES(r9)
+
 	/* Save and reset AMR and UAMOR before turning on the MMU */
 BEGIN_FTR_SECTION
 	mfspr	r5,SPRN_AMR
-- 
cgit 


From c0867fd50943d71d9f0bc5078393ce4ec76b3923 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 6 Sep 2013 13:18:32 +1000
Subject: KVM: PPC: Book3S: Add GET/SET_ONE_REG interface for VRSAVE

The VRSAVE register value for a vcpu is accessible through the
GET/SET_SREGS interface for Book E processors, but not for Book 3S
processors.  In order to make this accessible for Book 3S processors,
this adds a new register identifier for GET/SET_ONE_REG, and adds
the code to implement it.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 Documentation/virtual/kvm/api.txt   |  1 +
 arch/powerpc/include/uapi/asm/kvm.h |  2 ++
 arch/powerpc/kvm/book3s.c           | 10 ++++++++++
 3 files changed, 13 insertions(+)

diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index e43c6f14c225..26fc37355dcb 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -1834,6 +1834,7 @@ registers, find a list below:
   PPC   | KVM_REG_PPC_TCSCR	| 64
   PPC   | KVM_REG_PPC_PID	| 64
   PPC   | KVM_REG_PPC_ACOP	| 64
+  PPC   | KVM_REG_PPC_VRSAVE	| 32
   PPC   | KVM_REG_PPC_TM_GPR0	| 64
           ...
   PPC   | KVM_REG_PPC_TM_GPR31	| 64
diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h
index a8124fe93fb9..b98bf3f50527 100644
--- a/arch/powerpc/include/uapi/asm/kvm.h
+++ b/arch/powerpc/include/uapi/asm/kvm.h
@@ -532,6 +532,8 @@ struct kvm_get_htab_header {
 #define KVM_REG_PPC_PID		(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xb2)
 #define KVM_REG_PPC_ACOP	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xb3)
 
+#define KVM_REG_PPC_VRSAVE	(KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xb4)
+
 /* Transactional Memory checkpointed state:
  * This is all GPRs, all VSX regs and a subset of SPRs
  */
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index 700df6f1d32c..f97369dc457c 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -528,6 +528,9 @@ int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 			}
 			val = get_reg_val(reg->id, vcpu->arch.vscr.u[3]);
 			break;
+		case KVM_REG_PPC_VRSAVE:
+			val = get_reg_val(reg->id, vcpu->arch.vrsave);
+			break;
 #endif /* CONFIG_ALTIVEC */
 		case KVM_REG_PPC_DEBUG_INST: {
 			u32 opcode = INS_TW;
@@ -605,6 +608,13 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 			}
 			vcpu->arch.vscr.u[3] = set_reg_val(reg->id, val);
 			break;
+		case KVM_REG_PPC_VRSAVE:
+			if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
+				r = -ENXIO;
+				break;
+			}
+			vcpu->arch.vrsave = set_reg_val(reg->id, val);
+			break;
 #endif /* CONFIG_ALTIVEC */
 #ifdef CONFIG_KVM_XICS
 		case KVM_REG_PPC_ICP_STATE:
-- 
cgit 


From 42d7604d0c5a24f448983424eb19e3845cb031ba Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 6 Sep 2013 13:23:21 +1000
Subject: KVM: PPC: Book3S HV: Implement H_CONFER

The H_CONFER hypercall is used when a guest vcpu is spinning on a lock
held by another vcpu which has been preempted, and the spinning vcpu
wishes to give its timeslice to the lock holder.  We implement this
in the straightforward way using kvm_vcpu_yield_to().

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/book3s_hv.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 56f57af7e738..a010aa4cd026 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -538,6 +538,15 @@ int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu)
 		}
 		break;
 	case H_CONFER:
+		target = kvmppc_get_gpr(vcpu, 4);
+		if (target == -1)
+			break;
+		tvcpu = kvmppc_find_vcpu(vcpu->kvm, target);
+		if (!tvcpu) {
+			ret = H_PARAMETER;
+			break;
+		}
+		kvm_vcpu_yield_to(tvcpu);
 		break;
 	case H_REGISTER_VPA:
 		ret = do_h_register_vpa(vcpu, kvmppc_get_gpr(vcpu, 4),
-- 
cgit 


From 218309b75b5e800af952362b5cbb086fa64f59ba Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 6 Sep 2013 13:23:44 +1000
Subject: KVM: PPC: Book3S HV: Restructure kvmppc_hv_entry to be a subroutine

We have two paths into and out of the low-level guest entry and exit
code: from a vcpu task via kvmppc_hv_entry_trampoline, and from the
system reset vector for an offline secondary thread on POWER7 via
kvm_start_guest.  Currently both just branch to kvmppc_hv_entry to
enter the guest, and on guest exit, we test the vcpu physical thread
ID to detect which way we came in and thus whether we should return
to the vcpu task or go back to nap mode.

In order to make the code flow clearer, and to keep the code relating
to each flow together, this turns kvmppc_hv_entry into a subroutine
that follows the normal conventions for call and return.  This means
that kvmppc_hv_entry_trampoline() and kvmppc_hv_entry() now establish
normal stack frames, and we use the normal stack slots for saving
return addresses rather than local_paca->kvm_hstate.vmhandler.  Apart
from that this is mostly moving code around unchanged.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/book3s_hv_rmhandlers.S | 344 +++++++++++++++++---------------
 1 file changed, 178 insertions(+), 166 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 82b06dfe2d27..2bf295102f6a 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -66,8 +66,11 @@ kvmppc_skip_Hinterrupt:
  * LR = return address to continue at after eventually re-enabling MMU
  */
 _GLOBAL(kvmppc_hv_entry_trampoline)
+	mflr	r0
+	std	r0, PPC_LR_STKOFF(r1)
+	stdu	r1, -112(r1)
 	mfmsr	r10
-	LOAD_REG_ADDR(r5, kvmppc_hv_entry)
+	LOAD_REG_ADDR(r5, kvmppc_call_hv_entry)
 	li	r0,MSR_RI
 	andc	r0,r10,r0
 	li	r6,MSR_IR | MSR_DR
@@ -77,11 +80,103 @@ _GLOBAL(kvmppc_hv_entry_trampoline)
 	mtsrr1	r6
 	RFI
 
-/******************************************************************************
- *                                                                            *
- *                               Entry code                                   *
- *                                                                            *
- *****************************************************************************/
+kvmppc_call_hv_entry:
+	bl	kvmppc_hv_entry
+
+	/* Back from guest - restore host state and return to caller */
+
+	/* Restore host DABR and DABRX */
+	ld	r5,HSTATE_DABR(r13)
+	li	r6,7
+	mtspr	SPRN_DABR,r5
+	mtspr	SPRN_DABRX,r6
+
+	/* Restore SPRG3 */
+	ld	r3,PACA_SPRG3(r13)
+	mtspr	SPRN_SPRG3,r3
+
+	/*
+	 * Reload DEC.  HDEC interrupts were disabled when
+	 * we reloaded the host's LPCR value.
+	 */
+	ld	r3, HSTATE_DECEXP(r13)
+	mftb	r4
+	subf	r4, r4, r3
+	mtspr	SPRN_DEC, r4
+
+	/* Reload the host's PMU registers */
+	ld	r3, PACALPPACAPTR(r13)	/* is the host using the PMU? */
+	lbz	r4, LPPACA_PMCINUSE(r3)
+	cmpwi	r4, 0
+	beq	23f			/* skip if not */
+	lwz	r3, HSTATE_PMC(r13)
+	lwz	r4, HSTATE_PMC + 4(r13)
+	lwz	r5, HSTATE_PMC + 8(r13)
+	lwz	r6, HSTATE_PMC + 12(r13)
+	lwz	r8, HSTATE_PMC + 16(r13)
+	lwz	r9, HSTATE_PMC + 20(r13)
+BEGIN_FTR_SECTION
+	lwz	r10, HSTATE_PMC + 24(r13)
+	lwz	r11, HSTATE_PMC + 28(r13)
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
+	mtspr	SPRN_PMC1, r3
+	mtspr	SPRN_PMC2, r4
+	mtspr	SPRN_PMC3, r5
+	mtspr	SPRN_PMC4, r6
+	mtspr	SPRN_PMC5, r8
+	mtspr	SPRN_PMC6, r9
+BEGIN_FTR_SECTION
+	mtspr	SPRN_PMC7, r10
+	mtspr	SPRN_PMC8, r11
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
+	ld	r3, HSTATE_MMCR(r13)
+	ld	r4, HSTATE_MMCR + 8(r13)
+	ld	r5, HSTATE_MMCR + 16(r13)
+	mtspr	SPRN_MMCR1, r4
+	mtspr	SPRN_MMCRA, r5
+	mtspr	SPRN_MMCR0, r3
+	isync
+23:
+
+	/*
+	 * For external and machine check interrupts, we need
+	 * to call the Linux handler to process the interrupt.
+	 * We do that by jumping to absolute address 0x500 for
+	 * external interrupts, or the machine_check_fwnmi label
+	 * for machine checks (since firmware might have patched
+	 * the vector area at 0x200).  The [h]rfid at the end of the
+	 * handler will return to the book3s_hv_interrupts.S code.
+	 * For other interrupts we do the rfid to get back
+	 * to the book3s_hv_interrupts.S code here.
+	 */
+	ld	r8, 112+PPC_LR_STKOFF(r1)
+	addi	r1, r1, 112
+	ld	r7, HSTATE_HOST_MSR(r13)
+
+	cmpwi	cr1, r12, BOOK3S_INTERRUPT_MACHINE_CHECK
+	cmpwi	r12, BOOK3S_INTERRUPT_EXTERNAL
+BEGIN_FTR_SECTION
+	beq	11f
+END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
+
+	/* RFI into the highmem handler, or branch to interrupt handler */
+	mfmsr	r6
+	li	r0, MSR_RI
+	andc	r6, r6, r0
+	mtmsrd	r6, 1			/* Clear RI in MSR */
+	mtsrr0	r8
+	mtsrr1	r7
+	beqa	0x500			/* external interrupt (PPC970) */
+	beq	cr1, 13f		/* machine check */
+	RFI
+
+	/* On POWER7, we have external interrupts set to use HSRR0/1 */
+11:	mtspr	SPRN_HSRR0, r8
+	mtspr	SPRN_HSRR1, r7
+	ba	0x500
+
+13:	b	machine_check_fwnmi
+
 
 /*
  * We come in here when wakened from nap mode on a secondary hw thread.
@@ -137,7 +232,7 @@ kvm_start_guest:
 	cmpdi	r4,0
 	/* if we have no vcpu to run, go back to sleep */
 	beq	kvm_no_guest
-	b	kvmppc_hv_entry
+	b	30f
 
 27:	/* XXX should handle hypervisor maintenance interrupts etc. here */
 	b	kvm_no_guest
@@ -147,6 +242,57 @@ kvm_start_guest:
 	stw	r8,HSTATE_SAVED_XIRR(r13)
 	b	kvm_no_guest
 
+30:	bl	kvmppc_hv_entry
+
+	/* Back from the guest, go back to nap */
+	/* Clear our vcpu pointer so we don't come back in early */
+	li	r0, 0
+	std	r0, HSTATE_KVM_VCPU(r13)
+	lwsync
+	/* Clear any pending IPI - we're an offline thread */
+	ld	r5, HSTATE_XICS_PHYS(r13)
+	li	r7, XICS_XIRR
+	lwzcix	r3, r5, r7		/* ack any pending interrupt */
+	rlwinm.	r0, r3, 0, 0xffffff	/* any pending? */
+	beq	37f
+	sync
+	li	r0, 0xff
+	li	r6, XICS_MFRR
+	stbcix	r0, r5, r6		/* clear the IPI */
+	stwcix	r3, r5, r7		/* EOI it */
+37:	sync
+
+	/* increment the nap count and then go to nap mode */
+	ld	r4, HSTATE_KVM_VCORE(r13)
+	addi	r4, r4, VCORE_NAP_COUNT
+	lwsync				/* make previous updates visible */
+51:	lwarx	r3, 0, r4
+	addi	r3, r3, 1
+	stwcx.	r3, 0, r4
+	bne	51b
+
+kvm_no_guest:
+	li	r0, KVM_HWTHREAD_IN_NAP
+	stb	r0, HSTATE_HWTHREAD_STATE(r13)
+	li	r3, LPCR_PECE0
+	mfspr	r4, SPRN_LPCR
+	rlwimi	r4, r3, 0, LPCR_PECE0 | LPCR_PECE1
+	mtspr	SPRN_LPCR, r4
+	isync
+	std	r0, HSTATE_SCRATCH0(r13)
+	ptesync
+	ld	r0, HSTATE_SCRATCH0(r13)
+1:	cmpd	r0, r0
+	bne	1b
+	nap
+	b	.
+
+/******************************************************************************
+ *                                                                            *
+ *                               Entry code                                   *
+ *                                                                            *
+ *****************************************************************************/
+
 .global kvmppc_hv_entry
 kvmppc_hv_entry:
 
@@ -159,7 +305,8 @@ kvmppc_hv_entry:
 	 * all other volatile GPRS = free
 	 */
 	mflr	r0
-	std	r0, HSTATE_VMHANDLER(r13)
+	std	r0, PPC_LR_STKOFF(r1)
+	stdu	r1, -112(r1)
 
 	/* Set partition DABR */
 	/* Do this before re-enabling PMU to avoid P7 DABR corruption bug */
@@ -1198,103 +1345,30 @@ BEGIN_FTR_SECTION
 	stw	r11, VCPU_PMC + 28(r9)
 END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
 22:
+	ld	r0, 112+PPC_LR_STKOFF(r1)
+	addi	r1, r1, 112
+	mtlr	r0
+	blr
+secondary_too_late:
+	ld	r5,HSTATE_KVM_VCORE(r13)
+	HMT_LOW
+13:	lbz	r3,VCORE_IN_GUEST(r5)
+	cmpwi	r3,0
+	bne	13b
+	HMT_MEDIUM
+	li	r0, KVM_GUEST_MODE_NONE
+	stb	r0, HSTATE_IN_GUEST(r13)
+	ld	r11,PACA_SLBSHADOWPTR(r13)
 
-	/* Secondary threads go off to take a nap on POWER7 */
-BEGIN_FTR_SECTION
-	lwz	r0,VCPU_PTID(r9)
-	cmpwi	r0,0
-	bne	secondary_nap
-END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
-
-	/* Restore host DABR and DABRX */
-	ld	r5,HSTATE_DABR(r13)
-	li	r6,7
-	mtspr	SPRN_DABR,r5
-	mtspr	SPRN_DABRX,r6
-
-	/* Restore SPRG3 */
-	ld	r3,PACA_SPRG3(r13)
-	mtspr	SPRN_SPRG3,r3
-
-	/*
-	 * Reload DEC.  HDEC interrupts were disabled when
-	 * we reloaded the host's LPCR value.
-	 */
-	ld	r3, HSTATE_DECEXP(r13)
-	mftb	r4
-	subf	r4, r4, r3
-	mtspr	SPRN_DEC, r4
-
-	/* Reload the host's PMU registers */
-	ld	r3, PACALPPACAPTR(r13)	/* is the host using the PMU? */
-	lbz	r4, LPPACA_PMCINUSE(r3)
-	cmpwi	r4, 0
-	beq	23f			/* skip if not */
-	lwz	r3, HSTATE_PMC(r13)
-	lwz	r4, HSTATE_PMC + 4(r13)
-	lwz	r5, HSTATE_PMC + 8(r13)
-	lwz	r6, HSTATE_PMC + 12(r13)
-	lwz	r8, HSTATE_PMC + 16(r13)
-	lwz	r9, HSTATE_PMC + 20(r13)
-BEGIN_FTR_SECTION
-	lwz	r10, HSTATE_PMC + 24(r13)
-	lwz	r11, HSTATE_PMC + 28(r13)
-END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
-	mtspr	SPRN_PMC1, r3
-	mtspr	SPRN_PMC2, r4
-	mtspr	SPRN_PMC3, r5
-	mtspr	SPRN_PMC4, r6
-	mtspr	SPRN_PMC5, r8
-	mtspr	SPRN_PMC6, r9
-BEGIN_FTR_SECTION
-	mtspr	SPRN_PMC7, r10
-	mtspr	SPRN_PMC8, r11
-END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
-	ld	r3, HSTATE_MMCR(r13)
-	ld	r4, HSTATE_MMCR + 8(r13)
-	ld	r5, HSTATE_MMCR + 16(r13)
-	mtspr	SPRN_MMCR1, r4
-	mtspr	SPRN_MMCRA, r5
-	mtspr	SPRN_MMCR0, r3
-	isync
-23:
-	/*
-	 * For external and machine check interrupts, we need
-	 * to call the Linux handler to process the interrupt.
-	 * We do that by jumping to absolute address 0x500 for
-	 * external interrupts, or the machine_check_fwnmi label
-	 * for machine checks (since firmware might have patched
-	 * the vector area at 0x200).  The [h]rfid at the end of the
-	 * handler will return to the book3s_hv_interrupts.S code.
-	 * For other interrupts we do the rfid to get back
-	 * to the book3s_hv_interrupts.S code here.
-	 */
-	ld	r8, HSTATE_VMHANDLER(r13)
-	ld	r7, HSTATE_HOST_MSR(r13)
-
-	cmpwi	cr1, r12, BOOK3S_INTERRUPT_MACHINE_CHECK
-	cmpwi	r12, BOOK3S_INTERRUPT_EXTERNAL
-BEGIN_FTR_SECTION
-	beq	11f
-END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
-
-	/* RFI into the highmem handler, or branch to interrupt handler */
-	mfmsr	r6
-	li	r0, MSR_RI
-	andc	r6, r6, r0
-	mtmsrd	r6, 1			/* Clear RI in MSR */
-	mtsrr0	r8
-	mtsrr1	r7
-	beqa	0x500			/* external interrupt (PPC970) */
-	beq	cr1, 13f		/* machine check */
-	RFI
-
-	/* On POWER7, we have external interrupts set to use HSRR0/1 */
-11:	mtspr	SPRN_HSRR0, r8
-	mtspr	SPRN_HSRR1, r7
-	ba	0x500
-
-13:	b	machine_check_fwnmi
+	.rept	SLB_NUM_BOLTED
+	ld	r5,SLBSHADOW_SAVEAREA(r11)
+	ld	r6,SLBSHADOW_SAVEAREA+8(r11)
+	andis.	r7,r5,SLB_ESID_V@h
+	beq	1f
+	slbmte	r6,r5
+1:	addi	r11,r11,16
+	.endr
+	b	22b
 
 /*
  * Check whether an HDSI is an HPTE not found fault or something else.
@@ -1741,68 +1815,6 @@ machine_check_realmode:
 	rotldi	r11, r11, 63
 	b	fast_interrupt_c_return
 
-secondary_too_late:
-	ld	r5,HSTATE_KVM_VCORE(r13)
-	HMT_LOW
-13:	lbz	r3,VCORE_IN_GUEST(r5)
-	cmpwi	r3,0
-	bne	13b
-	HMT_MEDIUM
-	ld	r11,PACA_SLBSHADOWPTR(r13)
-
-	.rept	SLB_NUM_BOLTED
-	ld	r5,SLBSHADOW_SAVEAREA(r11)
-	ld	r6,SLBSHADOW_SAVEAREA+8(r11)
-	andis.	r7,r5,SLB_ESID_V@h
-	beq	1f
-	slbmte	r6,r5
-1:	addi	r11,r11,16
-	.endr
-
-secondary_nap:
-	/* Clear our vcpu pointer so we don't come back in early */
-	li	r0, 0
-	std	r0, HSTATE_KVM_VCPU(r13)
-	lwsync
-	/* Clear any pending IPI - assume we're a secondary thread */
-	ld	r5, HSTATE_XICS_PHYS(r13)
-	li	r7, XICS_XIRR
-	lwzcix	r3, r5, r7		/* ack any pending interrupt */
-	rlwinm.	r0, r3, 0, 0xffffff	/* any pending? */
-	beq	37f
-	sync
-	li	r0, 0xff
-	li	r6, XICS_MFRR
-	stbcix	r0, r5, r6		/* clear the IPI */
-	stwcix	r3, r5, r7		/* EOI it */
-37:	sync
-
-	/* increment the nap count and then go to nap mode */
-	ld	r4, HSTATE_KVM_VCORE(r13)
-	addi	r4, r4, VCORE_NAP_COUNT
-	lwsync				/* make previous updates visible */
-51:	lwarx	r3, 0, r4
-	addi	r3, r3, 1
-	stwcx.	r3, 0, r4
-	bne	51b
-
-kvm_no_guest:
-	li	r0, KVM_HWTHREAD_IN_NAP
-	stb	r0, HSTATE_HWTHREAD_STATE(r13)
-
-	li	r3, LPCR_PECE0
-	mfspr	r4, SPRN_LPCR
-	rlwimi	r4, r3, 0, LPCR_PECE0 | LPCR_PECE1
-	mtspr	SPRN_LPCR, r4
-	isync
-	std	r0, HSTATE_SCRATCH0(r13)
-	ptesync
-	ld	r0, HSTATE_SCRATCH0(r13)
-1:	cmpd	r0, r0
-	bne	1b
-	nap
-	b	.
-
 /*
  * Save away FP, VMX and VSX registers.
  * r3 = vcpu pointer
-- 
cgit 


From c934243ca0aa464610a8b8ff85c7a777bf066ce4 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 6 Sep 2013 13:24:13 +1000
Subject: KVM: PPC: Book3S HV: Pull out interrupt-reading code into a
 subroutine

This moves the code in book3s_hv_rmhandlers.S that reads any pending
interrupt from the XICS interrupt controller, and works out whether
it is an IPI for the guest, an IPI for the host, or a device interrupt,
into a new function called kvmppc_read_intr.  Later patches will
need this.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/book3s_hv_rmhandlers.S | 117 +++++++++++++++++++-------------
 1 file changed, 68 insertions(+), 49 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 2bf295102f6a..c91ae2b67845 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -862,46 +862,11 @@ END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_206)
 	 * set, we know the host wants us out so let's do it now
 	 */
 do_ext_interrupt:
-	lbz	r0, HSTATE_HOST_IPI(r13)
-	cmpwi	r0, 0
-	bne	ext_interrupt_to_host
-
-	/* Now read the interrupt from the ICP */
-	ld	r5, HSTATE_XICS_PHYS(r13)
-	li	r7, XICS_XIRR
-	cmpdi	r5, 0
-	beq-	ext_interrupt_to_host
-	lwzcix	r3, r5, r7
-	rlwinm.	r0, r3, 0, 0xffffff
-	sync
-	beq	3f		/* if nothing pending in the ICP */
-
-	/* We found something in the ICP...
-	 *
-	 * If it's not an IPI, stash it in the PACA and return to
-	 * the host, we don't (yet) handle directing real external
-	 * interrupts directly to the guest
-	 */
-	cmpwi	r0, XICS_IPI
-	bne	ext_stash_for_host
-
-	/* It's an IPI, clear the MFRR and EOI it */
-	li	r0, 0xff
-	li	r6, XICS_MFRR
-	stbcix	r0, r5, r6		/* clear the IPI */
-	stwcix	r3, r5, r7		/* EOI it */
-	sync
-
-	/* We need to re-check host IPI now in case it got set in the
-	 * meantime. If it's clear, we bounce the interrupt to the
-	 * guest
-	 */
-	lbz	r0, HSTATE_HOST_IPI(r13)
-	cmpwi	r0, 0
-	bne-	1f
+	bl	kvmppc_read_intr
+	cmpdi	r3, 0
+	bgt	ext_interrupt_to_host
 
 	/* Allright, looks like an IPI for the guest, we need to set MER */
-3:
 	/* Check if any CPU is heading out to the host, if so head out too */
 	ld	r5, HSTATE_KVM_VCORE(r13)
 	lwz	r0, VCORE_ENTRY_EXIT(r5)
@@ -930,17 +895,6 @@ do_ext_interrupt:
 	mtspr	SPRN_LPCR, r8
 	b	fast_guest_return
 
-	/* We raced with the host, we need to resend that IPI, bummer */
-1:	li	r0, IPI_PRIORITY
-	stbcix	r0, r5, r6		/* set the IPI */
-	sync
-	b	ext_interrupt_to_host
-
-ext_stash_for_host:
-	/* It's not an IPI and it's for the host, stash it in the PACA
-	 * before exit, it will be picked up by the host ICP driver
-	 */
-	stw	r3, HSTATE_SAVED_XIRR(r13)
 ext_interrupt_to_host:
 
 guest_exit_cont:		/* r9 = vcpu, r12 = trap, r13 = paca */
@@ -1815,6 +1769,71 @@ machine_check_realmode:
 	rotldi	r11, r11, 63
 	b	fast_interrupt_c_return
 
+/*
+ * Determine what sort of external interrupt is pending (if any).
+ * Returns:
+ *	0 if no interrupt is pending
+ *	1 if an interrupt is pending that needs to be handled by the host
+ *	-1 if there was a guest wakeup IPI (which has now been cleared)
+ */
+kvmppc_read_intr:
+	/* see if a host IPI is pending */
+	li	r3, 1
+	lbz	r0, HSTATE_HOST_IPI(r13)
+	cmpwi	r0, 0
+	bne	1f
+
+	/* Now read the interrupt from the ICP */
+	ld	r6, HSTATE_XICS_PHYS(r13)
+	li	r7, XICS_XIRR
+	cmpdi	r6, 0
+	beq-	1f
+	lwzcix	r0, r6, r7
+	rlwinm.	r3, r0, 0, 0xffffff
+	sync
+	beq	1f			/* if nothing pending in the ICP */
+
+	/* We found something in the ICP...
+	 *
+	 * If it's not an IPI, stash it in the PACA and return to
+	 * the host, we don't (yet) handle directing real external
+	 * interrupts directly to the guest
+	 */
+	cmpwi	r3, XICS_IPI		/* if there is, is it an IPI? */
+	li	r3, 1
+	bne	42f
+
+	/* It's an IPI, clear the MFRR and EOI it */
+	li	r3, 0xff
+	li	r8, XICS_MFRR
+	stbcix	r3, r6, r8		/* clear the IPI */
+	stwcix	r0, r6, r7		/* EOI it */
+	sync
+
+	/* We need to re-check host IPI now in case it got set in the
+	 * meantime. If it's clear, we bounce the interrupt to the
+	 * guest
+	 */
+	lbz	r0, HSTATE_HOST_IPI(r13)
+	cmpwi	r0, 0
+	bne-	43f
+
+	/* OK, it's an IPI for us */
+	li	r3, -1
+1:	blr
+
+42:	/* It's not an IPI and it's for the host, stash it in the PACA
+	 * before exit, it will be picked up by the host ICP driver
+	 */
+	stw	r0, HSTATE_SAVED_XIRR(r13)
+	b	1b
+
+43:	/* We raced with the host, we need to resend that IPI, bummer */
+	li	r0, IPI_PRIORITY
+	stbcix	r0, r6, r8		/* set the IPI */
+	sync
+	b	1b
+
 /*
  * Save away FP, VMX and VSX registers.
  * r3 = vcpu pointer
-- 
cgit 


From 8c2dbb79c62e9da4857b873435925d3654d9fccd Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 6 Sep 2013 13:24:35 +1000
Subject: KVM: PPC: Book3S HV: Avoid unbalanced increments of VPA yield count

The yield count in the VPA is supposed to be incremented every time
we enter the guest, and every time we exit the guest, so that its
value is even when the vcpu is running in the guest and odd when it
isn't.  However, it's currently possible that we increment the yield
count on the way into the guest but then find that other CPU threads
are already exiting the guest, so we go back to nap mode via the
secondary_too_late label.  In this situation we don't increment the
yield count again, breaking the relationship between the LSB of the
count and whether the vcpu is in the guest.

To fix this, we move the increment of the yield count to a point
after we have checked whether other CPU threads are exiting.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/book3s_hv_rmhandlers.S | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index c91ae2b67845..0effcd144241 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -405,16 +405,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
 	/* Save R1 in the PACA */
 	std	r1, HSTATE_HOST_R1(r13)
 
-	/* Increment yield count if they have a VPA */
-	ld	r3, VCPU_VPA(r4)
-	cmpdi	r3, 0
-	beq	25f
-	lwz	r5, LPPACA_YIELDCOUNT(r3)
-	addi	r5, r5, 1
-	stw	r5, LPPACA_YIELDCOUNT(r3)
-	li	r6, 1
-	stb	r6, VCPU_VPA_DIRTY(r4)
-25:
 	/* Load up DAR and DSISR */
 	ld	r5, VCPU_DAR(r4)
 	lwz	r6, VCPU_DSISR(r4)
@@ -525,6 +515,16 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
 	mtspr	SPRN_RMOR,r8
 	isync
 
+	/* Increment yield count if they have a VPA */
+	ld	r3, VCPU_VPA(r4)
+	cmpdi	r3, 0
+	beq	25f
+	lwz	r5, LPPACA_YIELDCOUNT(r3)
+	addi	r5, r5, 1
+	stw	r5, LPPACA_YIELDCOUNT(r3)
+	li	r6, 1
+	stb	r6, VCPU_VPA_DIRTY(r4)
+25:
 	/* Check if HDEC expires soon */
 	mfspr	r3,SPRN_HDEC
 	cmpwi	r3,10
-- 
cgit 


From 8b75cbbe647603f2b3c17ead35ee3cefa88397e7 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 20 Sep 2013 14:52:37 +1000
Subject: KVM: PPC: BookE: Add GET/SET_ONE_REG interface for VRSAVE

This makes the VRSAVE register value for a vcpu accessible through
the GET/SET_ONE_REG interface on Book E systems (in addition to the
existing GET/SET_SREGS interface), for consistency with Book 3S.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/booke.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 17722d82f1d1..65fa7754b194 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -1479,6 +1479,9 @@ int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 	case KVM_REG_PPC_DEBUG_INST:
 		val = get_reg_val(reg->id, KVMPPC_INST_EHPRIV);
 		break;
+	case KVM_REG_PPC_VRSAVE:
+		val = get_reg_val(reg->id, vcpu->arch.vrsave);
+		break;
 	default:
 		r = kvmppc_get_one_reg(vcpu, reg->id, &val);
 		break;
@@ -1552,6 +1555,9 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 		kvmppc_set_tcr(vcpu, tcr);
 		break;
 	}
+	case KVM_REG_PPC_VRSAVE:
+		vcpu->arch.vrsave = set_reg_val(reg->id, val);
+		break;
 	default:
 		r = kvmppc_set_one_reg(vcpu, reg->id, &val);
 		break;
-- 
cgit 


From a0144e2a6b0b4a137a32f0102354782547bf0935 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 20 Sep 2013 14:52:38 +1000
Subject: KVM: PPC: Book3S HV: Store LPCR value for each virtual core

This adds the ability to have a separate LPCR (Logical Partitioning
Control Register) value relating to a guest for each virtual core,
rather than only having a single value for the whole VM.  This
corresponds to what real POWER hardware does, where there is a LPCR
per CPU thread but most of the fields are required to have the same
value on all active threads in a core.

The per-virtual-core LPCR can be read and written using the
GET/SET_ONE_REG interface.  Userspace can can only modify the
following fields of the LPCR value:

DPFD	Default prefetch depth
ILE	Interrupt little-endian
TC	Translation control (secondary HPT hash group search disable)

We still maintain a per-VM default LPCR value in kvm->arch.lpcr, which
contains bits relating to memory management, i.e. the Virtualized
Partition Memory (VPM) bits and the bits relating to guest real mode.
When this default value is updated, the update needs to be propagated
to the per-vcore values, so we add a kvmppc_update_lpcr() helper to do
that.

Signed-off-by: Paul Mackerras <paulus@samba.org>
[agraf: fix whitespace]
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 Documentation/virtual/kvm/api.txt       |  1 +
 arch/powerpc/include/asm/kvm_book3s.h   |  2 +
 arch/powerpc/include/asm/kvm_host.h     |  1 +
 arch/powerpc/include/asm/reg.h          |  3 ++
 arch/powerpc/include/uapi/asm/kvm.h     |  1 +
 arch/powerpc/kernel/asm-offsets.c       |  1 +
 arch/powerpc/kvm/book3s_64_mmu_hv.c     |  5 +--
 arch/powerpc/kvm/book3s_hv.c            | 73 +++++++++++++++++++++++++++------
 arch/powerpc/kvm/book3s_hv_rmhandlers.S |  5 ++-
 9 files changed, 75 insertions(+), 17 deletions(-)

diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 26fc37355dcb..387f4c7dad9f 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -1835,6 +1835,7 @@ registers, find a list below:
   PPC   | KVM_REG_PPC_PID	| 64
   PPC   | KVM_REG_PPC_ACOP	| 64
   PPC   | KVM_REG_PPC_VRSAVE	| 32
+  PPC   | KVM_REG_PPC_LPCR	| 64
   PPC   | KVM_REG_PPC_TM_GPR0	| 64
           ...
   PPC   | KVM_REG_PPC_TM_GPR31	| 64
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index fa19e2f1a874..14a47416bdd4 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -172,6 +172,8 @@ extern long kvmppc_do_h_remove(struct kvm *kvm, unsigned long flags,
 			unsigned long *hpret);
 extern long kvmppc_hv_get_dirty_log(struct kvm *kvm,
 			struct kvm_memory_slot *memslot, unsigned long *map);
+extern void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr,
+			unsigned long mask);
 
 extern void kvmppc_entry_trampoline(void);
 extern void kvmppc_hv_entry_trampoline(void);
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index e4d67a606e43..6eabffcb1c3c 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -290,6 +290,7 @@ struct kvmppc_vcore {
 	u64 preempt_tb;
 	struct kvm_vcpu *runner;
 	u64 tb_offset;		/* guest timebase - host timebase */
+	ulong lpcr;
 };
 
 #define VCORE_ENTRY_COUNT(vc)	((vc)->entry_exit_count & 0xff)
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index fd4db15e6f2a..4bec4df3fb98 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -284,6 +284,7 @@
 #define   LPCR_ISL	(1ul << (63-2))
 #define   LPCR_VC_SH	(63-2)
 #define   LPCR_DPFD_SH	(63-11)
+#define   LPCR_DPFD	(7ul << LPCR_DPFD_SH)
 #define   LPCR_VRMASD	(0x1ful << (63-16))
 #define   LPCR_VRMA_L	(1ul << (63-12))
 #define   LPCR_VRMA_LP0	(1ul << (63-15))
@@ -300,6 +301,7 @@
 #define     LPCR_PECE2	0x00001000	/* machine check etc can cause exit */
 #define   LPCR_MER	0x00000800	/* Mediated External Exception */
 #define   LPCR_MER_SH	11
+#define   LPCR_TC      0x00000200	/* Translation control */
 #define   LPCR_LPES    0x0000000c
 #define   LPCR_LPES0   0x00000008      /* LPAR Env selector 0 */
 #define   LPCR_LPES1   0x00000004      /* LPAR Env selector 1 */
@@ -421,6 +423,7 @@
 #define	 HID4_RMLS2_SH	 (63 - 2)	/* Real mode limit bottom 2 bits */
 #define	 HID4_LPID5_SH	 (63 - 6)	/* partition ID bottom 4 bits */
 #define	 HID4_RMOR_SH	 (63 - 22)	/* real mode offset (16 bits) */
+#define  HID4_RMOR	 (0xFFFFul << HID4_RMOR_SH)
 #define  HID4_LPES1	 (1 << (63-57))	/* LPAR env. sel. bit 1 */
 #define  HID4_RMLS0_SH	 (63 - 58)	/* Real mode limit top bit */
 #define	 HID4_LPID1_SH	 0		/* partition ID top 2 bits */
diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h
index b98bf3f50527..e42127d1ae8e 100644
--- a/arch/powerpc/include/uapi/asm/kvm.h
+++ b/arch/powerpc/include/uapi/asm/kvm.h
@@ -533,6 +533,7 @@ struct kvm_get_htab_header {
 #define KVM_REG_PPC_ACOP	(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xb3)
 
 #define KVM_REG_PPC_VRSAVE	(KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xb4)
+#define KVM_REG_PPC_LPCR	(KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xb5)
 
 /* Transactional Memory checkpointed state:
  * This is all GPRs, all VSX regs and a subset of SPRs
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 34d63d871917..fd7513f8014b 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -524,6 +524,7 @@ int main(void)
 	DEFINE(VCORE_IN_GUEST, offsetof(struct kvmppc_vcore, in_guest));
 	DEFINE(VCORE_NAPPING_THREADS, offsetof(struct kvmppc_vcore, napping_threads));
 	DEFINE(VCORE_TB_OFFSET, offsetof(struct kvmppc_vcore, tb_offset));
+	DEFINE(VCORE_LPCR, offsetof(struct kvmppc_vcore, lpcr));
 	DEFINE(VCPU_SVCPU, offsetof(struct kvmppc_vcpu_book3s, shadow_vcpu) -
 			   offsetof(struct kvmppc_vcpu_book3s, vcpu));
 	DEFINE(VCPU_SLB_E, offsetof(struct kvmppc_slb, orige));
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c
index 043eec8461e7..ccb89a048bf8 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_hv.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c
@@ -1512,9 +1512,8 @@ static ssize_t kvm_htab_write(struct file *file, const char __user *buf,
 
 				kvm->arch.vrma_slb_v = senc | SLB_VSID_B_1T |
 					(VRMA_VSID << SLB_VSID_SHIFT_1T);
-				lpcr = kvm->arch.lpcr & ~LPCR_VRMASD;
-				lpcr |= senc << (LPCR_VRMASD_SH - 4);
-				kvm->arch.lpcr = lpcr;
+				lpcr = senc << (LPCR_VRMASD_SH - 4);
+				kvmppc_update_lpcr(kvm, lpcr, LPCR_VRMASD);
 				rma_setup = 1;
 			}
 			++i;
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index a010aa4cd026..36eb95cc48ae 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -195,7 +195,7 @@ void kvmppc_dump_regs(struct kvm_vcpu *vcpu)
 		pr_err("  ESID = %.16llx VSID = %.16llx\n",
 		       vcpu->arch.slb[r].orige, vcpu->arch.slb[r].origv);
 	pr_err("lpcr = %.16lx sdr1 = %.16lx last_inst = %.8x\n",
-	       vcpu->kvm->arch.lpcr, vcpu->kvm->arch.sdr1,
+	       vcpu->arch.vcore->lpcr, vcpu->kvm->arch.sdr1,
 	       vcpu->arch.last_inst);
 }
 
@@ -723,6 +723,21 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
 	return 0;
 }
 
+static void kvmppc_set_lpcr(struct kvm_vcpu *vcpu, u64 new_lpcr)
+{
+	struct kvmppc_vcore *vc = vcpu->arch.vcore;
+	u64 mask;
+
+	spin_lock(&vc->lock);
+	/*
+	 * Userspace can only modify DPFD (default prefetch depth),
+	 * ILE (interrupt little-endian) and TC (translation control).
+	 */
+	mask = LPCR_DPFD | LPCR_ILE | LPCR_TC;
+	vc->lpcr = (vc->lpcr & ~mask) | (new_lpcr & mask);
+	spin_unlock(&vc->lock);
+}
+
 int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
 {
 	int r = 0;
@@ -805,6 +820,9 @@ int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
 	case KVM_REG_PPC_TB_OFFSET:
 		*val = get_reg_val(id, vcpu->arch.vcore->tb_offset);
 		break;
+	case KVM_REG_PPC_LPCR:
+		*val = get_reg_val(id, vcpu->arch.vcore->lpcr);
+		break;
 	default:
 		r = -EINVAL;
 		break;
@@ -909,6 +927,9 @@ int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
 		vcpu->arch.vcore->tb_offset =
 			ALIGN(set_reg_val(id, *val), 1UL << 24);
 		break;
+	case KVM_REG_PPC_LPCR:
+		kvmppc_set_lpcr(vcpu, set_reg_val(id, *val));
+		break;
 	default:
 		r = -EINVAL;
 		break;
@@ -969,6 +990,7 @@ struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
 			spin_lock_init(&vcore->lock);
 			init_waitqueue_head(&vcore->wq);
 			vcore->preempt_tb = TB_NIL;
+			vcore->lpcr = kvm->arch.lpcr;
 		}
 		kvm->arch.vcores[core] = vcore;
 		kvm->arch.online_vcores++;
@@ -1758,6 +1780,32 @@ void kvmppc_core_commit_memory_region(struct kvm *kvm,
 	}
 }
 
+/*
+ * Update LPCR values in kvm->arch and in vcores.
+ * Caller must hold kvm->lock.
+ */
+void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr, unsigned long mask)
+{
+	long int i;
+	u32 cores_done = 0;
+
+	if ((kvm->arch.lpcr & mask) == lpcr)
+		return;
+
+	kvm->arch.lpcr = (kvm->arch.lpcr & ~mask) | lpcr;
+
+	for (i = 0; i < KVM_MAX_VCORES; ++i) {
+		struct kvmppc_vcore *vc = kvm->arch.vcores[i];
+		if (!vc)
+			continue;
+		spin_lock(&vc->lock);
+		vc->lpcr = (vc->lpcr & ~mask) | lpcr;
+		spin_unlock(&vc->lock);
+		if (++cores_done >= kvm->arch.online_vcores)
+			break;
+	}
+}
+
 static int kvmppc_hv_setup_htab_rma(struct kvm_vcpu *vcpu)
 {
 	int err = 0;
@@ -1766,7 +1814,8 @@ static int kvmppc_hv_setup_htab_rma(struct kvm_vcpu *vcpu)
 	unsigned long hva;
 	struct kvm_memory_slot *memslot;
 	struct vm_area_struct *vma;
-	unsigned long lpcr, senc;
+	unsigned long lpcr = 0, senc;
+	unsigned long lpcr_mask = 0;
 	unsigned long psize, porder;
 	unsigned long rma_size;
 	unsigned long rmls;
@@ -1831,9 +1880,9 @@ static int kvmppc_hv_setup_htab_rma(struct kvm_vcpu *vcpu)
 		senc = slb_pgsize_encoding(psize);
 		kvm->arch.vrma_slb_v = senc | SLB_VSID_B_1T |
 			(VRMA_VSID << SLB_VSID_SHIFT_1T);
-		lpcr = kvm->arch.lpcr & ~LPCR_VRMASD;
-		lpcr |= senc << (LPCR_VRMASD_SH - 4);
-		kvm->arch.lpcr = lpcr;
+		lpcr_mask = LPCR_VRMASD;
+		/* the -4 is to account for senc values starting at 0x10 */
+		lpcr = senc << (LPCR_VRMASD_SH - 4);
 
 		/* Create HPTEs in the hash page table for the VRMA */
 		kvmppc_map_vrma(vcpu, memslot, porder);
@@ -1854,23 +1903,21 @@ static int kvmppc_hv_setup_htab_rma(struct kvm_vcpu *vcpu)
 		kvm->arch.rma = ri;
 
 		/* Update LPCR and RMOR */
-		lpcr = kvm->arch.lpcr;
 		if (cpu_has_feature(CPU_FTR_ARCH_201)) {
 			/* PPC970; insert RMLS value (split field) in HID4 */
-			lpcr &= ~((1ul << HID4_RMLS0_SH) |
-				  (3ul << HID4_RMLS2_SH));
-			lpcr |= ((rmls >> 2) << HID4_RMLS0_SH) |
+			lpcr_mask = (1ul << HID4_RMLS0_SH) |
+				(3ul << HID4_RMLS2_SH) | HID4_RMOR;
+			lpcr = ((rmls >> 2) << HID4_RMLS0_SH) |
 				((rmls & 3) << HID4_RMLS2_SH);
 			/* RMOR is also in HID4 */
 			lpcr |= ((ri->base_pfn >> (26 - PAGE_SHIFT)) & 0xffff)
 				<< HID4_RMOR_SH;
 		} else {
 			/* POWER7 */
-			lpcr &= ~(LPCR_VPM0 | LPCR_VRMA_L);
-			lpcr |= rmls << LPCR_RMLS_SH;
+			lpcr_mask = LPCR_VPM0 | LPCR_VRMA_L | LPCR_RMLS;
+			lpcr = rmls << LPCR_RMLS_SH;
 			kvm->arch.rmor = ri->base_pfn << PAGE_SHIFT;
 		}
-		kvm->arch.lpcr = lpcr;
 		pr_info("KVM: Using RMO at %lx size %lx (LPCR = %lx)\n",
 			ri->base_pfn << PAGE_SHIFT, rma_size, lpcr);
 
@@ -1889,6 +1936,8 @@ static int kvmppc_hv_setup_htab_rma(struct kvm_vcpu *vcpu)
 		}
 	}
 
+	kvmppc_update_lpcr(kvm, lpcr, lpcr_mask);
+
 	/* Order updates to kvm->arch.lpcr etc. vs. rma_setup_done */
 	smp_wmb();
 	kvm->arch.rma_setup_done = 1;
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 0effcd144241..295fd58af39a 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -509,7 +509,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
 	beq	20b
 
 	/* Set LPCR and RMOR. */
-10:	ld	r8,KVM_LPCR(r9)
+10:	ld	r8,VCORE_LPCR(r5)
 	mtspr	SPRN_LPCR,r8
 	ld	r8,KVM_RMOR(r9)
 	mtspr	SPRN_RMOR,r8
@@ -571,7 +571,8 @@ toc_tlbie_lock:
 	bne	24b
 	isync
 
-	ld	r7,KVM_LPCR(r9)		/* use kvm->arch.lpcr to store HID4 */
+	ld	r5,HSTATE_KVM_VCORE(r13)
+	ld	r7,VCORE_LPCR(r5)	/* use vcore->lpcr to store HID4 */
 	li	r0,0x18f
 	rotldi	r0,r0,HID4_LPID5_SH	/* all lpid bits in HID4 = 1 */
 	or	r0,r7,r0
-- 
cgit 


From 4b8473c9c19dff1b0c672f182cc50b9952cf42e7 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 20 Sep 2013 14:52:39 +1000
Subject: KVM: PPC: Book3S HV: Add support for guest Program Priority Register

POWER7 and later IBM server processors have a register called the
Program Priority Register (PPR), which controls the priority of
each hardware CPU SMT thread, and affects how fast it runs compared
to other SMT threads.  This priority can be controlled by writing to
the PPR or by use of a set of instructions of the form or rN,rN,rN
which are otherwise no-ops but have been defined to set the priority
to particular levels.

This adds code to context switch the PPR when entering and exiting
guests and to make the PPR value accessible through the SET/GET_ONE_REG
interface.  When entering the guest, we set the PPR as late as
possible, because if we are setting a low thread priority it will
make the code run slowly from that point on.  Similarly, the
first-level interrupt handlers save the PPR value in the PACA very
early on, and set the thread priority to the medium level, so that
the interrupt handling code runs at a reasonable speed.

Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 Documentation/virtual/kvm/api.txt         |  1 +
 arch/powerpc/include/asm/exception-64s.h  |  8 ++++++++
 arch/powerpc/include/asm/kvm_book3s_asm.h |  1 +
 arch/powerpc/include/asm/kvm_host.h       |  1 +
 arch/powerpc/include/uapi/asm/kvm.h       |  1 +
 arch/powerpc/kernel/asm-offsets.c         |  2 ++
 arch/powerpc/kvm/book3s_hv.c              |  6 ++++++
 arch/powerpc/kvm/book3s_hv_rmhandlers.S   | 12 +++++++++++-
 8 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index 387f4c7dad9f..a9d1072dcbec 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -1836,6 +1836,7 @@ registers, find a list below:
   PPC   | KVM_REG_PPC_ACOP	| 64
   PPC   | KVM_REG_PPC_VRSAVE	| 32
   PPC   | KVM_REG_PPC_LPCR	| 64
+  PPC   | KVM_REG_PPC_PPR	| 64
   PPC   | KVM_REG_PPC_TM_GPR0	| 64
           ...
   PPC   | KVM_REG_PPC_TM_GPR31	| 64
diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h
index cca12f084842..402c1c466509 100644
--- a/arch/powerpc/include/asm/exception-64s.h
+++ b/arch/powerpc/include/asm/exception-64s.h
@@ -204,6 +204,10 @@ do_kvm_##n:								\
 	ld	r10,area+EX_CFAR(r13);					\
 	std	r10,HSTATE_CFAR(r13);					\
 	END_FTR_SECTION_NESTED(CPU_FTR_CFAR,CPU_FTR_CFAR,947);		\
+	BEGIN_FTR_SECTION_NESTED(948)					\
+	ld	r10,area+EX_PPR(r13);					\
+	std	r10,HSTATE_PPR(r13);					\
+	END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,948);	\
 	ld	r10,area+EX_R10(r13);					\
 	stw	r9,HSTATE_SCRATCH1(r13);				\
 	ld	r9,area+EX_R9(r13);					\
@@ -217,6 +221,10 @@ do_kvm_##n:								\
 	ld	r10,area+EX_R10(r13);					\
 	beq	89f;							\
 	stw	r9,HSTATE_SCRATCH1(r13);			\
+	BEGIN_FTR_SECTION_NESTED(948)					\
+	ld	r9,area+EX_PPR(r13);					\
+	std	r9,HSTATE_PPR(r13);					\
+	END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,948);	\
 	ld	r9,area+EX_R9(r13);					\
 	std	r12,HSTATE_SCRATCH0(r13);			\
 	li	r12,n;							\
diff --git a/arch/powerpc/include/asm/kvm_book3s_asm.h b/arch/powerpc/include/asm/kvm_book3s_asm.h
index 9039d3c97eec..22f46061ae84 100644
--- a/arch/powerpc/include/asm/kvm_book3s_asm.h
+++ b/arch/powerpc/include/asm/kvm_book3s_asm.h
@@ -101,6 +101,7 @@ struct kvmppc_host_state {
 #endif
 #ifdef CONFIG_PPC_BOOK3S_64
 	u64 cfar;
+	u64 ppr;
 #endif
 };
 
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 6eabffcb1c3c..4934e13fb23c 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -460,6 +460,7 @@ struct kvm_vcpu_arch {
 	u32 ctrl;
 	ulong dabr;
 	ulong cfar;
+	ulong ppr;
 #endif
 	u32 vrsave; /* also USPRG0 */
 	u32 mmucr;
diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h
index e42127d1ae8e..fab6bc1f8e90 100644
--- a/arch/powerpc/include/uapi/asm/kvm.h
+++ b/arch/powerpc/include/uapi/asm/kvm.h
@@ -534,6 +534,7 @@ struct kvm_get_htab_header {
 
 #define KVM_REG_PPC_VRSAVE	(KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xb4)
 #define KVM_REG_PPC_LPCR	(KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xb5)
+#define KVM_REG_PPC_PPR		(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xb6)
 
 /* Transactional Memory checkpointed state:
  * This is all GPRs, all VSX regs and a subset of SPRs
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index fd7513f8014b..5fda4ef489ad 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -519,6 +519,7 @@ int main(void)
 	DEFINE(VCPU_TRAP, offsetof(struct kvm_vcpu, arch.trap));
 	DEFINE(VCPU_PTID, offsetof(struct kvm_vcpu, arch.ptid));
 	DEFINE(VCPU_CFAR, offsetof(struct kvm_vcpu, arch.cfar));
+	DEFINE(VCPU_PPR, offsetof(struct kvm_vcpu, arch.ppr));
 	DEFINE(VCORE_ENTRY_EXIT, offsetof(struct kvmppc_vcore, entry_exit_count));
 	DEFINE(VCORE_NAP_COUNT, offsetof(struct kvmppc_vcore, nap_count));
 	DEFINE(VCORE_IN_GUEST, offsetof(struct kvmppc_vcore, in_guest));
@@ -604,6 +605,7 @@ int main(void)
 
 #ifdef CONFIG_PPC_BOOK3S_64
 	HSTATE_FIELD(HSTATE_CFAR, cfar);
+	HSTATE_FIELD(HSTATE_PPR, ppr);
 #endif /* CONFIG_PPC_BOOK3S_64 */
 
 #else /* CONFIG_PPC_BOOK3S */
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 36eb95cc48ae..2a0e38feec1d 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -823,6 +823,9 @@ int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
 	case KVM_REG_PPC_LPCR:
 		*val = get_reg_val(id, vcpu->arch.vcore->lpcr);
 		break;
+	case KVM_REG_PPC_PPR:
+		*val = get_reg_val(id, vcpu->arch.ppr);
+		break;
 	default:
 		r = -EINVAL;
 		break;
@@ -930,6 +933,9 @@ int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
 	case KVM_REG_PPC_LPCR:
 		kvmppc_set_lpcr(vcpu, set_reg_val(id, *val));
 		break;
+	case KVM_REG_PPC_PPR:
+		vcpu->arch.ppr = set_reg_val(id, *val);
+		break;
 	default:
 		r = -EINVAL;
 		break;
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 295fd58af39a..a81979becf41 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -717,13 +717,15 @@ BEGIN_FTR_SECTION
 	ld	r5, VCPU_CFAR(r4)
 	mtspr	SPRN_CFAR, r5
 END_FTR_SECTION_IFSET(CPU_FTR_CFAR)
+BEGIN_FTR_SECTION
+	ld	r0, VCPU_PPR(r4)
+END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
 
 	ld	r5, VCPU_LR(r4)
 	lwz	r6, VCPU_CR(r4)
 	mtlr	r5
 	mtcr	r6
 
-	ld	r0, VCPU_GPR(R0)(r4)
 	ld	r1, VCPU_GPR(R1)(r4)
 	ld	r2, VCPU_GPR(R2)(r4)
 	ld	r3, VCPU_GPR(R3)(r4)
@@ -737,6 +739,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_CFAR)
 	ld	r12, VCPU_GPR(R12)(r4)
 	ld	r13, VCPU_GPR(R13)(r4)
 
+BEGIN_FTR_SECTION
+	mtspr	SPRN_PPR, r0
+END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
+	ld	r0, VCPU_GPR(R0)(r4)
 	ld	r4, VCPU_GPR(R4)(r4)
 
 	hrfid
@@ -787,6 +793,10 @@ BEGIN_FTR_SECTION
 	ld	r3, HSTATE_CFAR(r13)
 	std	r3, VCPU_CFAR(r9)
 END_FTR_SECTION_IFSET(CPU_FTR_CFAR)
+BEGIN_FTR_SECTION
+	ld	r4, HSTATE_PPR(r13)
+	std	r4, VCPU_PPR(r9)
+END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
 
 	/* Restore R1/R2 so we can handle faults */
 	ld	r1, HSTATE_HOST_R1(r13)
-- 
cgit 


From 388cc6e133132e6c9b64e7d5361114a3a7d57663 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Sat, 21 Sep 2013 14:35:02 +1000
Subject: KVM: PPC: Book3S HV: Support POWER6 compatibility mode on POWER7

This enables us to use the Processor Compatibility Register (PCR) on
POWER7 to put the processor into architecture 2.05 compatibility mode
when running a guest.  In this mode the new instructions and registers
that were introduced on POWER7 are disabled in user mode.  This
includes all the VSX facilities plus several other instructions such
as ldbrx, stdbrx, popcntw, popcntd, etc.

To select this mode, we have a new register accessible through the
set/get_one_reg interface, called KVM_REG_PPC_ARCH_COMPAT.  Setting
this to zero gives the full set of capabilities of the processor.
Setting it to one of the "logical" PVR values defined in PAPR puts
the vcpu into the compatibility mode for the corresponding
architecture level.  The supported values are:

0x0f000002	Architecture 2.05 (POWER6)
0x0f000003	Architecture 2.06 (POWER7)
0x0f100003	Architecture 2.06+ (POWER7+)

Since the PCR is per-core, the architecture compatibility level and
the corresponding PCR value are stored in the struct kvmppc_vcore, and
are therefore shared between all vcpus in a virtual core.

Signed-off-by: Paul Mackerras <paulus@samba.org>
[agraf: squash in fix to add missing break statements and documentation]
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 Documentation/virtual/kvm/api.txt       |  1 +
 arch/powerpc/include/asm/kvm_host.h     |  2 ++
 arch/powerpc/include/asm/reg.h          | 11 +++++++++++
 arch/powerpc/include/uapi/asm/kvm.h     |  3 +++
 arch/powerpc/kernel/asm-offsets.c       |  1 +
 arch/powerpc/kvm/book3s_hv.c            | 35 +++++++++++++++++++++++++++++++++
 arch/powerpc/kvm/book3s_hv_rmhandlers.S | 16 +++++++++++++--
 7 files changed, 67 insertions(+), 2 deletions(-)

diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index a9d1072dcbec..25a19576493f 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -1837,6 +1837,7 @@ registers, find a list below:
   PPC   | KVM_REG_PPC_VRSAVE	| 32
   PPC   | KVM_REG_PPC_LPCR	| 64
   PPC   | KVM_REG_PPC_PPR	| 64
+  PPC   | KVM_REG_PPC_ARCH_COMPAT 32
   PPC   | KVM_REG_PPC_TM_GPR0	| 64
           ...
   PPC   | KVM_REG_PPC_TM_GPR31	| 64
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 4934e13fb23c..b1e8f2ba2a9d 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -291,6 +291,8 @@ struct kvmppc_vcore {
 	struct kvm_vcpu *runner;
 	u64 tb_offset;		/* guest timebase - host timebase */
 	ulong lpcr;
+	u32 arch_compat;
+	ulong pcr;
 };
 
 #define VCORE_ENTRY_COUNT(vc)	((vc)->entry_exit_count & 0xff)
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 4bec4df3fb98..e294673e9d4b 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -314,6 +314,10 @@
 #define   LPID_RSVD	0x3ff		/* Reserved LPID for partn switching */
 #define	SPRN_HMER	0x150	/* Hardware m? error recovery */
 #define	SPRN_HMEER	0x151	/* Hardware m? enable error recovery */
+#define SPRN_PCR	0x152	/* Processor compatibility register */
+#define   PCR_VEC_DIS	(1ul << (63-0))	/* Vec. disable (bit NA since POWER8) */
+#define   PCR_VSX_DIS	(1ul << (63-1))	/* VSX disable (bit NA since POWER8) */
+#define   PCR_ARCH_205	0x2		/* Architecture 2.05 */
 #define	SPRN_HEIR	0x153	/* Hypervisor Emulated Instruction Register */
 #define SPRN_TLBINDEXR	0x154	/* P7 TLB control register */
 #define SPRN_TLBVPNR	0x155	/* P7 TLB control register */
@@ -1106,6 +1110,13 @@
 #define PVR_BE		0x0070
 #define PVR_PA6T	0x0090
 
+/* "Logical" PVR values defined in PAPR, representing architecture levels */
+#define PVR_ARCH_204	0x0f000001
+#define PVR_ARCH_205	0x0f000002
+#define PVR_ARCH_206	0x0f000003
+#define PVR_ARCH_206p	0x0f100003
+#define PVR_ARCH_207	0x0f000004
+
 /* Macros for setting and retrieving special purpose registers */
 #ifndef __ASSEMBLY__
 #define mfmsr()		({unsigned long rval; \
diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h
index fab6bc1f8e90..e420d46d363f 100644
--- a/arch/powerpc/include/uapi/asm/kvm.h
+++ b/arch/powerpc/include/uapi/asm/kvm.h
@@ -536,6 +536,9 @@ struct kvm_get_htab_header {
 #define KVM_REG_PPC_LPCR	(KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xb5)
 #define KVM_REG_PPC_PPR		(KVM_REG_PPC | KVM_REG_SIZE_U64 | 0xb6)
 
+/* Architecture compatibility level */
+#define KVM_REG_PPC_ARCH_COMPAT	(KVM_REG_PPC | KVM_REG_SIZE_U32 | 0xb7)
+
 /* Transactional Memory checkpointed state:
  * This is all GPRs, all VSX regs and a subset of SPRs
  */
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 5fda4ef489ad..5a285efba174 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -526,6 +526,7 @@ int main(void)
 	DEFINE(VCORE_NAPPING_THREADS, offsetof(struct kvmppc_vcore, napping_threads));
 	DEFINE(VCORE_TB_OFFSET, offsetof(struct kvmppc_vcore, tb_offset));
 	DEFINE(VCORE_LPCR, offsetof(struct kvmppc_vcore, lpcr));
+	DEFINE(VCORE_PCR, offsetof(struct kvmppc_vcore, pcr));
 	DEFINE(VCPU_SVCPU, offsetof(struct kvmppc_vcpu_book3s, shadow_vcpu) -
 			   offsetof(struct kvmppc_vcpu_book3s, vcpu));
 	DEFINE(VCPU_SLB_E, offsetof(struct kvmppc_slb, orige));
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 2a0e38feec1d..e42fb5448608 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -166,6 +166,35 @@ void kvmppc_set_pvr(struct kvm_vcpu *vcpu, u32 pvr)
 	vcpu->arch.pvr = pvr;
 }
 
+int kvmppc_set_arch_compat(struct kvm_vcpu *vcpu, u32 arch_compat)
+{
+	unsigned long pcr = 0;
+	struct kvmppc_vcore *vc = vcpu->arch.vcore;
+
+	if (arch_compat) {
+		if (!cpu_has_feature(CPU_FTR_ARCH_206))
+			return -EINVAL;	/* 970 has no compat mode support */
+
+		switch (arch_compat) {
+		case PVR_ARCH_205:
+			pcr = PCR_ARCH_205;
+			break;
+		case PVR_ARCH_206:
+		case PVR_ARCH_206p:
+			break;
+		default:
+			return -EINVAL;
+		}
+	}
+
+	spin_lock(&vc->lock);
+	vc->arch_compat = arch_compat;
+	vc->pcr = pcr;
+	spin_unlock(&vc->lock);
+
+	return 0;
+}
+
 void kvmppc_dump_regs(struct kvm_vcpu *vcpu)
 {
 	int r;
@@ -826,6 +855,9 @@ int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
 	case KVM_REG_PPC_PPR:
 		*val = get_reg_val(id, vcpu->arch.ppr);
 		break;
+	case KVM_REG_PPC_ARCH_COMPAT:
+		*val = get_reg_val(id, vcpu->arch.vcore->arch_compat);
+		break;
 	default:
 		r = -EINVAL;
 		break;
@@ -936,6 +968,9 @@ int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
 	case KVM_REG_PPC_PPR:
 		vcpu->arch.ppr = set_reg_val(id, *val);
 		break;
+	case KVM_REG_PPC_ARCH_COMPAT:
+		r = kvmppc_set_arch_compat(vcpu, set_reg_val(id, *val));
+		break;
 	default:
 		r = -EINVAL;
 		break;
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index a81979becf41..cd39632a646e 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -499,7 +499,13 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
 	addis	r8,r8,0x100	/* if so, increment upper 40 bits */
 	mtspr	SPRN_TBU40,r8
 
-37:	li	r0,1
+	/* Load guest PCR value to select appropriate compat mode */
+37:	ld	r7, VCORE_PCR(r5)
+	cmpdi	r7, 0
+	beq	38f
+	mtspr	SPRN_PCR, r7
+38:
+	li	r0,1
 	stb	r0,VCORE_IN_GUEST(r5)	/* signal secondaries to continue */
 	b	10f
 
@@ -1094,8 +1100,14 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
 	addis	r8,r8,0x100		/* if so, increment upper 40 bits */
 	mtspr	SPRN_TBU40,r8
 
+	/* Reset PCR */
+17:	ld	r0, VCORE_PCR(r5)
+	cmpdi	r0, 0
+	beq	18f
+	li	r0, 0
+	mtspr	SPRN_PCR, r0
+18:
 	/* Signal secondary CPUs to continue */
-17:	li	r0,0
 	stb	r0,VCORE_IN_GUEST(r5)
 	lis	r8,0x7fff		/* MAX_INT@h */
 	mtspr	SPRN_HDEC,r8
-- 
cgit 


From f3271d4c9011bf5f36a65b9b5e7caaef4280686d Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 20 Sep 2013 14:52:41 +1000
Subject: KVM: PPC: Book3S HV: Don't crash host on unknown guest interrupt

If we come out of a guest with an interrupt that we don't know about,
instead of crashing the host with a BUG(), we now return to userspace
with the exit reason set to KVM_EXIT_UNKNOWN and the trap vector in
the hw.hardware_exit_reason field of the kvm_run structure, as is done
on x86.  Note that run->exit_reason is already set to KVM_EXIT_UNKNOWN
at the beginning of kvmppc_handle_exit().

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/book3s_hv.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index e42fb5448608..de9520f9241f 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -709,8 +709,8 @@ static int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
 		printk(KERN_EMERG "trap=0x%x | pc=0x%lx | msr=0x%llx\n",
 			vcpu->arch.trap, kvmppc_get_pc(vcpu),
 			vcpu->arch.shregs.msr);
+		run->hw.hardware_exit_reason = vcpu->arch.trap;
 		r = RESUME_HOST;
-		BUG();
 		break;
 	}
 
-- 
cgit 


From f24817716efe52f3c8fc137c6893963a0416f3cb Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 20 Sep 2013 14:52:42 +1000
Subject: KVM: PPC: Book3S PR: Fix compilation without CONFIG_ALTIVEC

Commit 9d1ffdd8f3 ("KVM: PPC: Book3S PR: Don't corrupt guest state
when kernel uses VMX") added a call to kvmppc_load_up_altivec() that
isn't guarded by CONFIG_ALTIVEC, causing a link failure when building
a kernel without CONFIG_ALTIVEC set.  This adds an #ifdef to fix this.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/book3s_pr.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 27db1e665959..8d45f185241a 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -619,8 +619,10 @@ static void kvmppc_handle_lost_ext(struct kvm_vcpu *vcpu)
 
 	if (lost_ext & MSR_FP)
 		kvmppc_load_up_fpu();
+#ifdef CONFIG_ALTIVEC
 	if (lost_ext & MSR_VEC)
 		kvmppc_load_up_altivec();
+#endif
 	current->thread.regs->msr |= lost_ext;
 }
 
-- 
cgit 


From a2d56020d1d91934e7bb3e7c8a5a3b5921ce121b Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 20 Sep 2013 14:52:43 +1000
Subject: KVM: PPC: Book3S PR: Keep volatile reg values in vcpu rather than
 shadow_vcpu

Currently PR-style KVM keeps the volatile guest register values
(R0 - R13, CR, LR, CTR, XER, PC) in a shadow_vcpu struct rather than
the main kvm_vcpu struct.  For 64-bit, the shadow_vcpu exists in two
places, a kmalloc'd struct and in the PACA, and it gets copied back
and forth in kvmppc_core_vcpu_load/put(), because the real-mode code
can't rely on being able to access the kmalloc'd struct.

This changes the code to copy the volatile values into the shadow_vcpu
as one of the last things done before entering the guest.  Similarly
the values are copied back out of the shadow_vcpu to the kvm_vcpu
immediately after exiting the guest.  We arrange for interrupts to be
still disabled at this point so that we can't get preempted on 64-bit
and end up copying values from the wrong PACA.

This means that the accessor functions in kvm_book3s.h for these
registers are greatly simplified, and are same between PR and HV KVM.
In places where accesses to shadow_vcpu fields are now replaced by
accesses to the kvm_vcpu, we can also remove the svcpu_get/put pairs.
Finally, on 64-bit, we don't need the kmalloc'd struct at all any more.

With this, the time to read the PVR one million times in a loop went
from 567.7ms to 575.5ms (averages of 6 values), an increase of about
1.4% for this worse-case test for guest entries and exits.  The
standard deviation of the measurements is about 11ms, so the
difference is only marginally significant statistically.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/kvm_book3s.h     | 220 +++++-------------------------
 arch/powerpc/include/asm/kvm_book3s_asm.h |   6 +-
 arch/powerpc/include/asm/kvm_host.h       |   1 +
 arch/powerpc/kernel/asm-offsets.c         |   4 +-
 arch/powerpc/kvm/book3s_emulate.c         |   8 +-
 arch/powerpc/kvm/book3s_interrupts.S      |  27 +++-
 arch/powerpc/kvm/book3s_pr.c              | 122 ++++++++++++-----
 arch/powerpc/kvm/book3s_rmhandlers.S      |   6 +-
 arch/powerpc/kvm/trace.h                  |   7 +-
 9 files changed, 162 insertions(+), 239 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index 14a47416bdd4..40f22d9c704c 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -200,140 +200,76 @@ extern void kvm_return_point(void);
 #include <asm/kvm_book3s_64.h>
 #endif
 
-#ifdef CONFIG_KVM_BOOK3S_PR
-
-static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
-{
-	return to_book3s(vcpu)->hior;
-}
-
-static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
-			unsigned long pending_now, unsigned long old_pending)
-{
-	if (pending_now)
-		vcpu->arch.shared->int_pending = 1;
-	else if (old_pending)
-		vcpu->arch.shared->int_pending = 0;
-}
-
 static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
 {
-	if ( num < 14 ) {
-		struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
-		svcpu->gpr[num] = val;
-		svcpu_put(svcpu);
-		to_book3s(vcpu)->shadow_vcpu->gpr[num] = val;
-	} else
-		vcpu->arch.gpr[num] = val;
+	vcpu->arch.gpr[num] = val;
 }
 
 static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
 {
-	if ( num < 14 ) {
-		struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
-		ulong r = svcpu->gpr[num];
-		svcpu_put(svcpu);
-		return r;
-	} else
-		return vcpu->arch.gpr[num];
+	return vcpu->arch.gpr[num];
 }
 
 static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
 {
-	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
-	svcpu->cr = val;
-	svcpu_put(svcpu);
-	to_book3s(vcpu)->shadow_vcpu->cr = val;
+	vcpu->arch.cr = val;
 }
 
 static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
 {
-	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
-	u32 r;
-	r = svcpu->cr;
-	svcpu_put(svcpu);
-	return r;
+	return vcpu->arch.cr;
 }
 
 static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val)
 {
-	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
-	svcpu->xer = val;
-	to_book3s(vcpu)->shadow_vcpu->xer = val;
-	svcpu_put(svcpu);
+	vcpu->arch.xer = val;
 }
 
 static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
 {
-	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
-	u32 r;
-	r = svcpu->xer;
-	svcpu_put(svcpu);
-	return r;
+	return vcpu->arch.xer;
 }
 
 static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
 {
-	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
-	svcpu->ctr = val;
-	svcpu_put(svcpu);
+	vcpu->arch.ctr = val;
 }
 
 static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
 {
-	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
-	ulong r;
-	r = svcpu->ctr;
-	svcpu_put(svcpu);
-	return r;
+	return vcpu->arch.ctr;
 }
 
 static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
 {
-	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
-	svcpu->lr = val;
-	svcpu_put(svcpu);
+	vcpu->arch.lr = val;
 }
 
 static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
 {
-	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
-	ulong r;
-	r = svcpu->lr;
-	svcpu_put(svcpu);
-	return r;
+	return vcpu->arch.lr;
 }
 
 static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
 {
-	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
-	svcpu->pc = val;
-	svcpu_put(svcpu);
+	vcpu->arch.pc = val;
 }
 
 static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
 {
-	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
-	ulong r;
-	r = svcpu->pc;
-	svcpu_put(svcpu);
-	return r;
+	return vcpu->arch.pc;
 }
 
 static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
 {
 	ulong pc = kvmppc_get_pc(vcpu);
-	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
-	u32 r;
 
 	/* Load the instruction manually if it failed to do so in the
 	 * exit path */
-	if (svcpu->last_inst == KVM_INST_FETCH_FAILED)
-		kvmppc_ld(vcpu, &pc, sizeof(u32), &svcpu->last_inst, false);
+	if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
+		kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false);
 
-	r = svcpu->last_inst;
-	svcpu_put(svcpu);
-	return r;
+	return vcpu->arch.last_inst;
 }
 
 /*
@@ -344,26 +280,34 @@ static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
 static inline u32 kvmppc_get_last_sc(struct kvm_vcpu *vcpu)
 {
 	ulong pc = kvmppc_get_pc(vcpu) - 4;
-	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
-	u32 r;
 
 	/* Load the instruction manually if it failed to do so in the
 	 * exit path */
-	if (svcpu->last_inst == KVM_INST_FETCH_FAILED)
-		kvmppc_ld(vcpu, &pc, sizeof(u32), &svcpu->last_inst, false);
+	if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
+		kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false);
 
-	r = svcpu->last_inst;
-	svcpu_put(svcpu);
-	return r;
+	return vcpu->arch.last_inst;
 }
 
 static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
 {
-	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
-	ulong r;
-	r = svcpu->fault_dar;
-	svcpu_put(svcpu);
-	return r;
+	return vcpu->arch.fault_dar;
+}
+
+#ifdef CONFIG_KVM_BOOK3S_PR
+
+static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
+{
+	return to_book3s(vcpu)->hior;
+}
+
+static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
+			unsigned long pending_now, unsigned long old_pending)
+{
+	if (pending_now)
+		vcpu->arch.shared->int_pending = 1;
+	else if (old_pending)
+		vcpu->arch.shared->int_pending = 0;
 }
 
 static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
@@ -397,100 +341,6 @@ static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
 {
 }
 
-static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
-{
-	vcpu->arch.gpr[num] = val;
-}
-
-static inline ulong kvmppc_get_gpr(struct kvm_vcpu *vcpu, int num)
-{
-	return vcpu->arch.gpr[num];
-}
-
-static inline void kvmppc_set_cr(struct kvm_vcpu *vcpu, u32 val)
-{
-	vcpu->arch.cr = val;
-}
-
-static inline u32 kvmppc_get_cr(struct kvm_vcpu *vcpu)
-{
-	return vcpu->arch.cr;
-}
-
-static inline void kvmppc_set_xer(struct kvm_vcpu *vcpu, u32 val)
-{
-	vcpu->arch.xer = val;
-}
-
-static inline u32 kvmppc_get_xer(struct kvm_vcpu *vcpu)
-{
-	return vcpu->arch.xer;
-}
-
-static inline void kvmppc_set_ctr(struct kvm_vcpu *vcpu, ulong val)
-{
-	vcpu->arch.ctr = val;
-}
-
-static inline ulong kvmppc_get_ctr(struct kvm_vcpu *vcpu)
-{
-	return vcpu->arch.ctr;
-}
-
-static inline void kvmppc_set_lr(struct kvm_vcpu *vcpu, ulong val)
-{
-	vcpu->arch.lr = val;
-}
-
-static inline ulong kvmppc_get_lr(struct kvm_vcpu *vcpu)
-{
-	return vcpu->arch.lr;
-}
-
-static inline void kvmppc_set_pc(struct kvm_vcpu *vcpu, ulong val)
-{
-	vcpu->arch.pc = val;
-}
-
-static inline ulong kvmppc_get_pc(struct kvm_vcpu *vcpu)
-{
-	return vcpu->arch.pc;
-}
-
-static inline u32 kvmppc_get_last_inst(struct kvm_vcpu *vcpu)
-{
-	ulong pc = kvmppc_get_pc(vcpu);
-
-	/* Load the instruction manually if it failed to do so in the
-	 * exit path */
-	if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
-		kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false);
-
-	return vcpu->arch.last_inst;
-}
-
-/*
- * Like kvmppc_get_last_inst(), but for fetching a sc instruction.
- * Because the sc instruction sets SRR0 to point to the following
- * instruction, we have to fetch from pc - 4.
- */
-static inline u32 kvmppc_get_last_sc(struct kvm_vcpu *vcpu)
-{
-	ulong pc = kvmppc_get_pc(vcpu) - 4;
-
-	/* Load the instruction manually if it failed to do so in the
-	 * exit path */
-	if (vcpu->arch.last_inst == KVM_INST_FETCH_FAILED)
-		kvmppc_ld(vcpu, &pc, sizeof(u32), &vcpu->arch.last_inst, false);
-
-	return vcpu->arch.last_inst;
-}
-
-static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
-{
-	return vcpu->arch.fault_dar;
-}
-
 static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
 {
 	return false;
diff --git a/arch/powerpc/include/asm/kvm_book3s_asm.h b/arch/powerpc/include/asm/kvm_book3s_asm.h
index 22f46061ae84..62737113c2b9 100644
--- a/arch/powerpc/include/asm/kvm_book3s_asm.h
+++ b/arch/powerpc/include/asm/kvm_book3s_asm.h
@@ -109,14 +109,14 @@ struct kvmppc_book3s_shadow_vcpu {
 	ulong gpr[14];
 	u32 cr;
 	u32 xer;
-
-	u32 fault_dsisr;
-	u32 last_inst;
 	ulong ctr;
 	ulong lr;
 	ulong pc;
+
 	ulong shadow_srr1;
 	ulong fault_dar;
+	u32 fault_dsisr;
+	u32 last_inst;
 
 #ifdef CONFIG_PPC_BOOK3S_32
 	u32     sr[16];			/* Guest SRs */
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index b1e8f2ba2a9d..f48f3f09177f 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -463,6 +463,7 @@ struct kvm_vcpu_arch {
 	ulong dabr;
 	ulong cfar;
 	ulong ppr;
+	ulong shadow_srr1;
 #endif
 	u32 vrsave; /* also USPRG0 */
 	u32 mmucr;
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 5a285efba174..fda7f4020a33 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -520,6 +520,7 @@ int main(void)
 	DEFINE(VCPU_PTID, offsetof(struct kvm_vcpu, arch.ptid));
 	DEFINE(VCPU_CFAR, offsetof(struct kvm_vcpu, arch.cfar));
 	DEFINE(VCPU_PPR, offsetof(struct kvm_vcpu, arch.ppr));
+	DEFINE(VCPU_SHADOW_SRR1, offsetof(struct kvm_vcpu, arch.shadow_srr1));
 	DEFINE(VCORE_ENTRY_EXIT, offsetof(struct kvmppc_vcore, entry_exit_count));
 	DEFINE(VCORE_NAP_COUNT, offsetof(struct kvmppc_vcore, nap_count));
 	DEFINE(VCORE_IN_GUEST, offsetof(struct kvmppc_vcore, in_guest));
@@ -527,14 +528,13 @@ int main(void)
 	DEFINE(VCORE_TB_OFFSET, offsetof(struct kvmppc_vcore, tb_offset));
 	DEFINE(VCORE_LPCR, offsetof(struct kvmppc_vcore, lpcr));
 	DEFINE(VCORE_PCR, offsetof(struct kvmppc_vcore, pcr));
-	DEFINE(VCPU_SVCPU, offsetof(struct kvmppc_vcpu_book3s, shadow_vcpu) -
-			   offsetof(struct kvmppc_vcpu_book3s, vcpu));
 	DEFINE(VCPU_SLB_E, offsetof(struct kvmppc_slb, orige));
 	DEFINE(VCPU_SLB_V, offsetof(struct kvmppc_slb, origv));
 	DEFINE(VCPU_SLB_SIZE, sizeof(struct kvmppc_slb));
 
 #ifdef CONFIG_PPC_BOOK3S_64
 #ifdef CONFIG_KVM_BOOK3S_PR
+	DEFINE(PACA_SVCPU, offsetof(struct paca_struct, shadow_vcpu));
 # define SVCPU_FIELD(x, f)	DEFINE(x, offsetof(struct paca_struct, shadow_vcpu.f))
 #else
 # define SVCPU_FIELD(x, f)
diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c
index 360ce68c9809..34044b111daa 100644
--- a/arch/powerpc/kvm/book3s_emulate.c
+++ b/arch/powerpc/kvm/book3s_emulate.c
@@ -267,12 +267,9 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
 
 			r = kvmppc_st(vcpu, &addr, 32, zeros, true);
 			if ((r == -ENOENT) || (r == -EPERM)) {
-				struct kvmppc_book3s_shadow_vcpu *svcpu;
-
-				svcpu = svcpu_get(vcpu);
 				*advance = 0;
 				vcpu->arch.shared->dar = vaddr;
-				svcpu->fault_dar = vaddr;
+				vcpu->arch.fault_dar = vaddr;
 
 				dsisr = DSISR_ISSTORE;
 				if (r == -ENOENT)
@@ -281,8 +278,7 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
 					dsisr |= DSISR_PROTFAULT;
 
 				vcpu->arch.shared->dsisr = dsisr;
-				svcpu->fault_dsisr = dsisr;
-				svcpu_put(svcpu);
+				vcpu->arch.fault_dsisr = dsisr;
 
 				kvmppc_book3s_queue_irqprio(vcpu,
 					BOOK3S_INTERRUPT_DATA_STORAGE);
diff --git a/arch/powerpc/kvm/book3s_interrupts.S b/arch/powerpc/kvm/book3s_interrupts.S
index 17cfae5497a3..d4e30d8fa825 100644
--- a/arch/powerpc/kvm/book3s_interrupts.S
+++ b/arch/powerpc/kvm/book3s_interrupts.S
@@ -26,8 +26,12 @@
 
 #if defined(CONFIG_PPC_BOOK3S_64)
 #define FUNC(name) 		GLUE(.,name)
+#define GET_SHADOW_VCPU(reg)    addi	reg, r13, PACA_SVCPU
+
 #elif defined(CONFIG_PPC_BOOK3S_32)
 #define FUNC(name)		name
+#define GET_SHADOW_VCPU(reg)	lwz     reg, (THREAD + THREAD_KVM_SVCPU)(r2)
+
 #endif /* CONFIG_PPC_BOOK3S_XX */
 
 #define VCPU_LOAD_NVGPRS(vcpu) \
@@ -87,8 +91,14 @@ kvm_start_entry:
 	VCPU_LOAD_NVGPRS(r4)
 
 kvm_start_lightweight:
+	/* Copy registers into shadow vcpu so we can access them in real mode */
+	GET_SHADOW_VCPU(r3)
+	bl	FUNC(kvmppc_copy_to_svcpu)
+	nop
+	REST_GPR(4, r1)
 
 #ifdef CONFIG_PPC_BOOK3S_64
+	/* Get the dcbz32 flag */
 	PPC_LL	r3, VCPU_HFLAGS(r4)
 	rldicl	r3, r3, 0, 63		/* r3 &= 1 */
 	stb	r3, HSTATE_RESTORE_HID5(r13)
@@ -125,18 +135,31 @@ kvmppc_handler_highmem:
 	 *
 	 */
 
-	/* R7 = vcpu */
-	PPC_LL	r7, GPR4(r1)
+	/* Transfer reg values from shadow vcpu back to vcpu struct */
+	/* On 64-bit, interrupts are still off at this point */
+	PPC_LL	r3, GPR4(r1)		/* vcpu pointer */
+	GET_SHADOW_VCPU(r4)
+	bl	FUNC(kvmppc_copy_from_svcpu)
+	nop
 
 #ifdef CONFIG_PPC_BOOK3S_64
+	/* Re-enable interrupts */
+	ld	r3, HSTATE_HOST_MSR(r13)
+	ori	r3, r3, MSR_EE
+	MTMSR_EERI(r3)
+
 	/*
 	 * Reload kernel SPRG3 value.
 	 * No need to save guest value as usermode can't modify SPRG3.
 	 */
 	ld	r3, PACA_SPRG3(r13)
 	mtspr	SPRN_SPRG3, r3
+
 #endif /* CONFIG_PPC_BOOK3S_64 */
 
+	/* R7 = vcpu */
+	PPC_LL	r7, GPR4(r1)
+
 	PPC_STL	r14, VCPU_GPR(R14)(r7)
 	PPC_STL	r15, VCPU_GPR(R15)(r7)
 	PPC_STL	r16, VCPU_GPR(R16)(r7)
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 8d45f185241a..228a9baffd9e 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -61,8 +61,6 @@ void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 #ifdef CONFIG_PPC_BOOK3S_64
 	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
 	memcpy(svcpu->slb, to_book3s(vcpu)->slb_shadow, sizeof(svcpu->slb));
-	memcpy(&get_paca()->shadow_vcpu, to_book3s(vcpu)->shadow_vcpu,
-	       sizeof(get_paca()->shadow_vcpu));
 	svcpu->slb_max = to_book3s(vcpu)->slb_shadow_max;
 	svcpu_put(svcpu);
 #endif
@@ -77,8 +75,6 @@ void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
 #ifdef CONFIG_PPC_BOOK3S_64
 	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
 	memcpy(to_book3s(vcpu)->slb_shadow, svcpu->slb, sizeof(svcpu->slb));
-	memcpy(to_book3s(vcpu)->shadow_vcpu, &get_paca()->shadow_vcpu,
-	       sizeof(get_paca()->shadow_vcpu));
 	to_book3s(vcpu)->slb_shadow_max = svcpu->slb_max;
 	svcpu_put(svcpu);
 #endif
@@ -87,6 +83,60 @@ void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
 	vcpu->cpu = -1;
 }
 
+/* Copy data needed by real-mode code from vcpu to shadow vcpu */
+void kvmppc_copy_to_svcpu(struct kvmppc_book3s_shadow_vcpu *svcpu,
+			  struct kvm_vcpu *vcpu)
+{
+	svcpu->gpr[0] = vcpu->arch.gpr[0];
+	svcpu->gpr[1] = vcpu->arch.gpr[1];
+	svcpu->gpr[2] = vcpu->arch.gpr[2];
+	svcpu->gpr[3] = vcpu->arch.gpr[3];
+	svcpu->gpr[4] = vcpu->arch.gpr[4];
+	svcpu->gpr[5] = vcpu->arch.gpr[5];
+	svcpu->gpr[6] = vcpu->arch.gpr[6];
+	svcpu->gpr[7] = vcpu->arch.gpr[7];
+	svcpu->gpr[8] = vcpu->arch.gpr[8];
+	svcpu->gpr[9] = vcpu->arch.gpr[9];
+	svcpu->gpr[10] = vcpu->arch.gpr[10];
+	svcpu->gpr[11] = vcpu->arch.gpr[11];
+	svcpu->gpr[12] = vcpu->arch.gpr[12];
+	svcpu->gpr[13] = vcpu->arch.gpr[13];
+	svcpu->cr  = vcpu->arch.cr;
+	svcpu->xer = vcpu->arch.xer;
+	svcpu->ctr = vcpu->arch.ctr;
+	svcpu->lr  = vcpu->arch.lr;
+	svcpu->pc  = vcpu->arch.pc;
+}
+
+/* Copy data touched by real-mode code from shadow vcpu back to vcpu */
+void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu,
+			    struct kvmppc_book3s_shadow_vcpu *svcpu)
+{
+	vcpu->arch.gpr[0] = svcpu->gpr[0];
+	vcpu->arch.gpr[1] = svcpu->gpr[1];
+	vcpu->arch.gpr[2] = svcpu->gpr[2];
+	vcpu->arch.gpr[3] = svcpu->gpr[3];
+	vcpu->arch.gpr[4] = svcpu->gpr[4];
+	vcpu->arch.gpr[5] = svcpu->gpr[5];
+	vcpu->arch.gpr[6] = svcpu->gpr[6];
+	vcpu->arch.gpr[7] = svcpu->gpr[7];
+	vcpu->arch.gpr[8] = svcpu->gpr[8];
+	vcpu->arch.gpr[9] = svcpu->gpr[9];
+	vcpu->arch.gpr[10] = svcpu->gpr[10];
+	vcpu->arch.gpr[11] = svcpu->gpr[11];
+	vcpu->arch.gpr[12] = svcpu->gpr[12];
+	vcpu->arch.gpr[13] = svcpu->gpr[13];
+	vcpu->arch.cr  = svcpu->cr;
+	vcpu->arch.xer = svcpu->xer;
+	vcpu->arch.ctr = svcpu->ctr;
+	vcpu->arch.lr  = svcpu->lr;
+	vcpu->arch.pc  = svcpu->pc;
+	vcpu->arch.shadow_srr1 = svcpu->shadow_srr1;
+	vcpu->arch.fault_dar   = svcpu->fault_dar;
+	vcpu->arch.fault_dsisr = svcpu->fault_dsisr;
+	vcpu->arch.last_inst   = svcpu->last_inst;
+}
+
 int kvmppc_core_check_requests(struct kvm_vcpu *vcpu)
 {
 	int r = 1; /* Indicate we want to get back into the guest */
@@ -388,22 +438,18 @@ int kvmppc_handle_pagefault(struct kvm_run *run, struct kvm_vcpu *vcpu,
 
 	if (page_found == -ENOENT) {
 		/* Page not found in guest PTE entries */
-		struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
 		vcpu->arch.shared->dar = kvmppc_get_fault_dar(vcpu);
-		vcpu->arch.shared->dsisr = svcpu->fault_dsisr;
+		vcpu->arch.shared->dsisr = vcpu->arch.fault_dsisr;
 		vcpu->arch.shared->msr |=
-			(svcpu->shadow_srr1 & 0x00000000f8000000ULL);
-		svcpu_put(svcpu);
+			vcpu->arch.shadow_srr1 & 0x00000000f8000000ULL;
 		kvmppc_book3s_queue_irqprio(vcpu, vec);
 	} else if (page_found == -EPERM) {
 		/* Storage protection */
-		struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
 		vcpu->arch.shared->dar = kvmppc_get_fault_dar(vcpu);
-		vcpu->arch.shared->dsisr = svcpu->fault_dsisr & ~DSISR_NOHPTE;
+		vcpu->arch.shared->dsisr = vcpu->arch.fault_dsisr & ~DSISR_NOHPTE;
 		vcpu->arch.shared->dsisr |= DSISR_PROTFAULT;
 		vcpu->arch.shared->msr |=
-			svcpu->shadow_srr1 & 0x00000000f8000000ULL;
-		svcpu_put(svcpu);
+			vcpu->arch.shadow_srr1 & 0x00000000f8000000ULL;
 		kvmppc_book3s_queue_irqprio(vcpu, vec);
 	} else if (page_found == -EINVAL) {
 		/* Page not found in guest SLB */
@@ -645,21 +691,26 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
 	switch (exit_nr) {
 	case BOOK3S_INTERRUPT_INST_STORAGE:
 	{
-		struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
-		ulong shadow_srr1 = svcpu->shadow_srr1;
+		ulong shadow_srr1 = vcpu->arch.shadow_srr1;
 		vcpu->stat.pf_instruc++;
 
 #ifdef CONFIG_PPC_BOOK3S_32
 		/* We set segments as unused segments when invalidating them. So
 		 * treat the respective fault as segment fault. */
-		if (svcpu->sr[kvmppc_get_pc(vcpu) >> SID_SHIFT] == SR_INVALID) {
-			kvmppc_mmu_map_segment(vcpu, kvmppc_get_pc(vcpu));
-			r = RESUME_GUEST;
+		{
+			struct kvmppc_book3s_shadow_vcpu *svcpu;
+			u32 sr;
+
+			svcpu = svcpu_get(vcpu);
+			sr = svcpu->sr[kvmppc_get_pc(vcpu) >> SID_SHIFT];
 			svcpu_put(svcpu);
-			break;
+			if (sr == SR_INVALID) {
+				kvmppc_mmu_map_segment(vcpu, kvmppc_get_pc(vcpu));
+				r = RESUME_GUEST;
+				break;
+			}
 		}
 #endif
-		svcpu_put(svcpu);
 
 		/* only care about PTEG not found errors, but leave NX alone */
 		if (shadow_srr1 & 0x40000000) {
@@ -684,21 +735,26 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
 	case BOOK3S_INTERRUPT_DATA_STORAGE:
 	{
 		ulong dar = kvmppc_get_fault_dar(vcpu);
-		struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
-		u32 fault_dsisr = svcpu->fault_dsisr;
+		u32 fault_dsisr = vcpu->arch.fault_dsisr;
 		vcpu->stat.pf_storage++;
 
 #ifdef CONFIG_PPC_BOOK3S_32
 		/* We set segments as unused segments when invalidating them. So
 		 * treat the respective fault as segment fault. */
-		if ((svcpu->sr[dar >> SID_SHIFT]) == SR_INVALID) {
-			kvmppc_mmu_map_segment(vcpu, dar);
-			r = RESUME_GUEST;
+		{
+			struct kvmppc_book3s_shadow_vcpu *svcpu;
+			u32 sr;
+
+			svcpu = svcpu_get(vcpu);
+			sr = svcpu->sr[dar >> SID_SHIFT];
 			svcpu_put(svcpu);
-			break;
+			if (sr == SR_INVALID) {
+				kvmppc_mmu_map_segment(vcpu, dar);
+				r = RESUME_GUEST;
+				break;
+			}
 		}
 #endif
-		svcpu_put(svcpu);
 
 		/* The only case we need to handle is missing shadow PTEs */
 		if (fault_dsisr & DSISR_NOHPTE) {
@@ -745,13 +801,10 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
 	case BOOK3S_INTERRUPT_H_EMUL_ASSIST:
 	{
 		enum emulation_result er;
-		struct kvmppc_book3s_shadow_vcpu *svcpu;
 		ulong flags;
 
 program_interrupt:
-		svcpu = svcpu_get(vcpu);
-		flags = svcpu->shadow_srr1 & 0x1f0000ull;
-		svcpu_put(svcpu);
+		flags = vcpu->arch.shadow_srr1 & 0x1f0000ull;
 
 		if (vcpu->arch.shared->msr & MSR_PR) {
 #ifdef EXIT_DEBUG
@@ -883,9 +936,7 @@ program_interrupt:
 		break;
 	default:
 	{
-		struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
-		ulong shadow_srr1 = svcpu->shadow_srr1;
-		svcpu_put(svcpu);
+		ulong shadow_srr1 = vcpu->arch.shadow_srr1;
 		/* Ugh - bork here! What did we get? */
 		printk(KERN_EMERG "exit_nr=0x%x | pc=0x%lx | msr=0x%lx\n",
 			exit_nr, kvmppc_get_pc(vcpu), shadow_srr1);
@@ -1060,11 +1111,12 @@ struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
 	if (!vcpu_book3s)
 		goto out;
 
+#ifdef CONFIG_KVM_BOOK3S_32
 	vcpu_book3s->shadow_vcpu =
 		kzalloc(sizeof(*vcpu_book3s->shadow_vcpu), GFP_KERNEL);
 	if (!vcpu_book3s->shadow_vcpu)
 		goto free_vcpu;
-
+#endif
 	vcpu = &vcpu_book3s->vcpu;
 	err = kvm_vcpu_init(vcpu, kvm, id);
 	if (err)
@@ -1098,8 +1150,10 @@ struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
 uninit_vcpu:
 	kvm_vcpu_uninit(vcpu);
 free_shadow_vcpu:
+#ifdef CONFIG_KVM_BOOK3S_32
 	kfree(vcpu_book3s->shadow_vcpu);
 free_vcpu:
+#endif
 	vfree(vcpu_book3s);
 out:
 	return ERR_PTR(err);
diff --git a/arch/powerpc/kvm/book3s_rmhandlers.S b/arch/powerpc/kvm/book3s_rmhandlers.S
index 8f7633e3afb8..cd59a3a38482 100644
--- a/arch/powerpc/kvm/book3s_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_rmhandlers.S
@@ -179,11 +179,15 @@ _GLOBAL(kvmppc_entry_trampoline)
 
 	li	r6, MSR_IR | MSR_DR
 	andc	r6, r5, r6	/* Clear DR and IR in MSR value */
+#ifdef CONFIG_PPC_BOOK3S_32
 	/*
 	 * Set EE in HOST_MSR so that it's enabled when we get into our
-	 * C exit handler function
+	 * C exit handler function.  On 64-bit we delay enabling
+	 * interrupts until we have finished transferring stuff
+	 * to or from the PACA.
 	 */
 	ori	r5, r5, MSR_EE
+#endif
 	mtsrr0	r7
 	mtsrr1	r6
 	RFI
diff --git a/arch/powerpc/kvm/trace.h b/arch/powerpc/kvm/trace.h
index e326489a5420..a088e9a8c103 100644
--- a/arch/powerpc/kvm/trace.h
+++ b/arch/powerpc/kvm/trace.h
@@ -101,17 +101,12 @@ TRACE_EVENT(kvm_exit,
 	),
 
 	TP_fast_assign(
-#ifdef CONFIG_KVM_BOOK3S_PR
-		struct kvmppc_book3s_shadow_vcpu *svcpu;
-#endif
 		__entry->exit_nr	= exit_nr;
 		__entry->pc		= kvmppc_get_pc(vcpu);
 		__entry->dar		= kvmppc_get_fault_dar(vcpu);
 		__entry->msr		= vcpu->arch.shared->msr;
 #ifdef CONFIG_KVM_BOOK3S_PR
-		svcpu = svcpu_get(vcpu);
-		__entry->srr1		= svcpu->shadow_srr1;
-		svcpu_put(svcpu);
+		__entry->srr1		= vcpu->arch.shadow_srr1;
 #endif
 		__entry->last_inst	= vcpu->arch.last_inst;
 	),
-- 
cgit 


From a4a0f2524acc2c602cadd8e743be19d86f3a746b Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 20 Sep 2013 14:52:44 +1000
Subject: KVM: PPC: Book3S PR: Allow guest to use 64k pages

This adds the code to interpret 64k HPTEs in the guest hashed page
table (HPT), 64k SLB entries, and to tell the guest about 64k pages
in kvm_vm_ioctl_get_smmu_info().  Guest 64k pages are still shadowed
by 4k pages.

This also adds another hash table to the four we have already in
book3s_mmu_hpte.c to allow us to find all the PTEs that we have
instantiated that match a given 64k guest page.

The tlbie instruction changed starting with POWER6 to use a bit in
the RB operand to indicate large page invalidations, and to use other
RB bits to indicate the base and actual page sizes and the segment
size.  64k pages came in slightly earlier, with POWER5++.
We use one bit in vcpu->arch.hflags to indicate that the emulated
cpu supports 64k pages, and another to indicate that it has the new
tlbie definition.

The KVM_PPC_GET_SMMU_INFO ioctl presents a bit of a problem, because
the MMU capabilities depend on which CPU model we're emulating, but it
is a VM ioctl not a VCPU ioctl and therefore doesn't get passed a VCPU
fd.  In addition, commonly-used userspace (QEMU) calls it before
setting the PVR for any VCPU.  Therefore, as a best effort we look at
the first vcpu in the VM and return 64k pages or not depending on its
capabilities.  We also make the PVR default to the host PVR on recent
CPUs that support 1TB segments (and therefore multiple page sizes as
well) so that KVM_PPC_GET_SMMU_INFO will include 64k page and 1TB
segment support on those CPUs.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/kvm_asm.h    |  2 +
 arch/powerpc/include/asm/kvm_book3s.h |  6 +++
 arch/powerpc/include/asm/kvm_host.h   |  4 ++
 arch/powerpc/kvm/book3s_64_mmu.c      | 92 +++++++++++++++++++++++++++++++----
 arch/powerpc/kvm/book3s_mmu_hpte.c    | 50 +++++++++++++++++++
 arch/powerpc/kvm/book3s_pr.c          | 58 +++++++++++++++++++---
 6 files changed, 197 insertions(+), 15 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_asm.h b/arch/powerpc/include/asm/kvm_asm.h
index 851bac7afa4b..e2d4d467ee93 100644
--- a/arch/powerpc/include/asm/kvm_asm.h
+++ b/arch/powerpc/include/asm/kvm_asm.h
@@ -123,6 +123,8 @@
 #define BOOK3S_HFLAG_SLB			0x2
 #define BOOK3S_HFLAG_PAIRED_SINGLE		0x4
 #define BOOK3S_HFLAG_NATIVE_PS			0x8
+#define BOOK3S_HFLAG_MULTI_PGSIZE		0x10
+#define BOOK3S_HFLAG_NEW_TLBIE			0x20
 
 #define RESUME_FLAG_NV          (1<<0)  /* Reload guest nonvolatile state? */
 #define RESUME_FLAG_HOST        (1<<1)  /* Resume host? */
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index 40f22d9c704c..1d4a1202e2d5 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -58,6 +58,9 @@ struct hpte_cache {
 	struct hlist_node list_pte_long;
 	struct hlist_node list_vpte;
 	struct hlist_node list_vpte_long;
+#ifdef CONFIG_PPC_BOOK3S_64
+	struct hlist_node list_vpte_64k;
+#endif
 	struct rcu_head rcu_head;
 	u64 host_vpn;
 	u64 pfn;
@@ -99,6 +102,9 @@ struct kvmppc_vcpu_book3s {
 	struct hlist_head hpte_hash_pte_long[HPTEG_HASH_NUM_PTE_LONG];
 	struct hlist_head hpte_hash_vpte[HPTEG_HASH_NUM_VPTE];
 	struct hlist_head hpte_hash_vpte_long[HPTEG_HASH_NUM_VPTE_LONG];
+#ifdef CONFIG_PPC_BOOK3S_64
+	struct hlist_head hpte_hash_vpte_64k[HPTEG_HASH_NUM_VPTE_64K];
+#endif
 	int hpte_cache_count;
 	spinlock_t mmu_lock;
 };
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index f48f3f09177f..3d8b8a8921f0 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -68,10 +68,12 @@ extern void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte);
 #define HPTEG_HASH_BITS_PTE_LONG	12
 #define HPTEG_HASH_BITS_VPTE		13
 #define HPTEG_HASH_BITS_VPTE_LONG	5
+#define HPTEG_HASH_BITS_VPTE_64K	11
 #define HPTEG_HASH_NUM_PTE		(1 << HPTEG_HASH_BITS_PTE)
 #define HPTEG_HASH_NUM_PTE_LONG		(1 << HPTEG_HASH_BITS_PTE_LONG)
 #define HPTEG_HASH_NUM_VPTE		(1 << HPTEG_HASH_BITS_VPTE)
 #define HPTEG_HASH_NUM_VPTE_LONG	(1 << HPTEG_HASH_BITS_VPTE_LONG)
+#define HPTEG_HASH_NUM_VPTE_64K		(1 << HPTEG_HASH_BITS_VPTE_64K)
 
 /* Physical Address Mask - allowed range of real mode RAM access */
 #define KVM_PAM			0x0fffffffffffffffULL
@@ -327,6 +329,7 @@ struct kvmppc_pte {
 	bool may_read		: 1;
 	bool may_write		: 1;
 	bool may_execute	: 1;
+	u8 page_size;		/* MMU_PAGE_xxx */
 };
 
 struct kvmppc_mmu {
@@ -359,6 +362,7 @@ struct kvmppc_slb {
 	bool large	: 1;	/* PTEs are 16MB */
 	bool tb		: 1;	/* 1TB segment */
 	bool class	: 1;
+	u8 base_page_size;	/* MMU_PAGE_xxx */
 };
 
 # ifdef CONFIG_PPC_FSL_BOOK3E
diff --git a/arch/powerpc/kvm/book3s_64_mmu.c b/arch/powerpc/kvm/book3s_64_mmu.c
index 7e345e00661a..8277264a0bc5 100644
--- a/arch/powerpc/kvm/book3s_64_mmu.c
+++ b/arch/powerpc/kvm/book3s_64_mmu.c
@@ -107,9 +107,20 @@ static u64 kvmppc_mmu_book3s_64_ea_to_vp(struct kvm_vcpu *vcpu, gva_t eaddr,
 	return kvmppc_slb_calc_vpn(slb, eaddr);
 }
 
+static int mmu_pagesize(int mmu_pg)
+{
+	switch (mmu_pg) {
+	case MMU_PAGE_64K:
+		return 16;
+	case MMU_PAGE_16M:
+		return 24;
+	}
+	return 12;
+}
+
 static int kvmppc_mmu_book3s_64_get_pagesize(struct kvmppc_slb *slbe)
 {
-	return slbe->large ? 24 : 12;
+	return mmu_pagesize(slbe->base_page_size);
 }
 
 static u32 kvmppc_mmu_book3s_64_get_page(struct kvmppc_slb *slbe, gva_t eaddr)
@@ -166,14 +177,34 @@ static u64 kvmppc_mmu_book3s_64_get_avpn(struct kvmppc_slb *slbe, gva_t eaddr)
 	avpn = kvmppc_mmu_book3s_64_get_page(slbe, eaddr);
 	avpn |= slbe->vsid << (kvmppc_slb_sid_shift(slbe) - p);
 
-	if (p < 24)
-		avpn >>= ((80 - p) - 56) - 8;
+	if (p < 16)
+		avpn >>= ((80 - p) - 56) - 8;	/* 16 - p */
 	else
-		avpn <<= 8;
+		avpn <<= p - 16;
 
 	return avpn;
 }
 
+/*
+ * Return page size encoded in the second word of a HPTE, or
+ * -1 for an invalid encoding for the base page size indicated by
+ * the SLB entry.  This doesn't handle mixed pagesize segments yet.
+ */
+static int decode_pagesize(struct kvmppc_slb *slbe, u64 r)
+{
+	switch (slbe->base_page_size) {
+	case MMU_PAGE_64K:
+		if ((r & 0xf000) == 0x1000)
+			return MMU_PAGE_64K;
+		break;
+	case MMU_PAGE_16M:
+		if ((r & 0xff000) == 0)
+			return MMU_PAGE_16M;
+		break;
+	}
+	return -1;
+}
+
 static int kvmppc_mmu_book3s_64_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
 				struct kvmppc_pte *gpte, bool data)
 {
@@ -189,6 +220,7 @@ static int kvmppc_mmu_book3s_64_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
 	u8 pp, key = 0;
 	bool found = false;
 	bool second = false;
+	int pgsize;
 	ulong mp_ea = vcpu->arch.magic_page_ea;
 
 	/* Magic page override */
@@ -202,6 +234,7 @@ static int kvmppc_mmu_book3s_64_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
 		gpte->may_execute = true;
 		gpte->may_read = true;
 		gpte->may_write = true;
+		gpte->page_size = MMU_PAGE_4K;
 
 		return 0;
 	}
@@ -222,6 +255,8 @@ static int kvmppc_mmu_book3s_64_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
 	v_mask = SLB_VSID_B | HPTE_V_AVPN | HPTE_V_LARGE | HPTE_V_VALID |
 		HPTE_V_SECONDARY;
 
+	pgsize = slbe->large ? MMU_PAGE_16M : MMU_PAGE_4K;
+
 do_second:
 	ptegp = kvmppc_mmu_book3s_64_get_pteg(vcpu_book3s, slbe, eaddr, second);
 	if (kvm_is_error_hva(ptegp))
@@ -240,6 +275,13 @@ do_second:
 	for (i=0; i<16; i+=2) {
 		/* Check all relevant fields of 1st dword */
 		if ((pteg[i] & v_mask) == v_val) {
+			/* If large page bit is set, check pgsize encoding */
+			if (slbe->large &&
+			    (vcpu->arch.hflags & BOOK3S_HFLAG_MULTI_PGSIZE)) {
+				pgsize = decode_pagesize(slbe, pteg[i+1]);
+				if (pgsize < 0)
+					continue;
+			}
 			found = true;
 			break;
 		}
@@ -256,13 +298,13 @@ do_second:
 	v = pteg[i];
 	r = pteg[i+1];
 	pp = (r & HPTE_R_PP) | key;
-	eaddr_mask = 0xFFF;
 
 	gpte->eaddr = eaddr;
 	gpte->vpage = kvmppc_mmu_book3s_64_ea_to_vp(vcpu, eaddr, data);
-	if (slbe->large)
-		eaddr_mask = 0xFFFFFF;
+
+	eaddr_mask = (1ull << mmu_pagesize(pgsize)) - 1;
 	gpte->raddr = (r & HPTE_R_RPN & ~eaddr_mask) | (eaddr & eaddr_mask);
+	gpte->page_size = pgsize;
 	gpte->may_execute = ((r & HPTE_R_N) ? false : true);
 	gpte->may_read = false;
 	gpte->may_write = false;
@@ -345,6 +387,21 @@ static void kvmppc_mmu_book3s_64_slbmte(struct kvm_vcpu *vcpu, u64 rs, u64 rb)
 	slbe->nx    = (rs & SLB_VSID_N) ? 1 : 0;
 	slbe->class = (rs & SLB_VSID_C) ? 1 : 0;
 
+	slbe->base_page_size = MMU_PAGE_4K;
+	if (slbe->large) {
+		if (vcpu->arch.hflags & BOOK3S_HFLAG_MULTI_PGSIZE) {
+			switch (rs & SLB_VSID_LP) {
+			case SLB_VSID_LP_00:
+				slbe->base_page_size = MMU_PAGE_16M;
+				break;
+			case SLB_VSID_LP_01:
+				slbe->base_page_size = MMU_PAGE_64K;
+				break;
+			}
+		} else
+			slbe->base_page_size = MMU_PAGE_16M;
+	}
+
 	slbe->orige = rb & (ESID_MASK | SLB_ESID_V);
 	slbe->origv = rs;
 
@@ -463,8 +520,25 @@ static void kvmppc_mmu_book3s_64_tlbie(struct kvm_vcpu *vcpu, ulong va,
 
 	dprintk("KVM MMU: tlbie(0x%lx)\n", va);
 
-	if (large)
-		mask = 0xFFFFFF000ULL;
+	/*
+	 * The tlbie instruction changed behaviour starting with
+	 * POWER6.  POWER6 and later don't have the large page flag
+	 * in the instruction but in the RB value, along with bits
+	 * indicating page and segment sizes.
+	 */
+	if (vcpu->arch.hflags & BOOK3S_HFLAG_NEW_TLBIE) {
+		/* POWER6 or later */
+		if (va & 1) {		/* L bit */
+			if ((va & 0xf000) == 0x1000)
+				mask = 0xFFFFFFFF0ULL;	/* 64k page */
+			else
+				mask = 0xFFFFFF000ULL;	/* 16M page */
+		}
+	} else {
+		/* older processors, e.g. PPC970 */
+		if (large)
+			mask = 0xFFFFFF000ULL;
+	}
 	kvmppc_mmu_pte_vflush(vcpu, va >> 12, mask);
 }
 
diff --git a/arch/powerpc/kvm/book3s_mmu_hpte.c b/arch/powerpc/kvm/book3s_mmu_hpte.c
index da8b13c4b776..d2d280b16778 100644
--- a/arch/powerpc/kvm/book3s_mmu_hpte.c
+++ b/arch/powerpc/kvm/book3s_mmu_hpte.c
@@ -56,6 +56,14 @@ static inline u64 kvmppc_mmu_hash_vpte_long(u64 vpage)
 		       HPTEG_HASH_BITS_VPTE_LONG);
 }
 
+#ifdef CONFIG_PPC_BOOK3S_64
+static inline u64 kvmppc_mmu_hash_vpte_64k(u64 vpage)
+{
+	return hash_64((vpage & 0xffffffff0ULL) >> 4,
+		       HPTEG_HASH_BITS_VPTE_64K);
+}
+#endif
+
 void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte)
 {
 	u64 index;
@@ -83,6 +91,13 @@ void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte)
 	hlist_add_head_rcu(&pte->list_vpte_long,
 			   &vcpu3s->hpte_hash_vpte_long[index]);
 
+#ifdef CONFIG_PPC_BOOK3S_64
+	/* Add to vPTE_64k list */
+	index = kvmppc_mmu_hash_vpte_64k(pte->pte.vpage);
+	hlist_add_head_rcu(&pte->list_vpte_64k,
+			   &vcpu3s->hpte_hash_vpte_64k[index]);
+#endif
+
 	spin_unlock(&vcpu3s->mmu_lock);
 }
 
@@ -113,6 +128,9 @@ static void invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte)
 	hlist_del_init_rcu(&pte->list_pte_long);
 	hlist_del_init_rcu(&pte->list_vpte);
 	hlist_del_init_rcu(&pte->list_vpte_long);
+#ifdef CONFIG_PPC_BOOK3S_64
+	hlist_del_init_rcu(&pte->list_vpte_64k);
+#endif
 
 	spin_unlock(&vcpu3s->mmu_lock);
 
@@ -219,6 +237,29 @@ static void kvmppc_mmu_pte_vflush_short(struct kvm_vcpu *vcpu, u64 guest_vp)
 	rcu_read_unlock();
 }
 
+#ifdef CONFIG_PPC_BOOK3S_64
+/* Flush with mask 0xffffffff0 */
+static void kvmppc_mmu_pte_vflush_64k(struct kvm_vcpu *vcpu, u64 guest_vp)
+{
+	struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu);
+	struct hlist_head *list;
+	struct hpte_cache *pte;
+	u64 vp_mask = 0xffffffff0ULL;
+
+	list = &vcpu3s->hpte_hash_vpte_64k[
+		kvmppc_mmu_hash_vpte_64k(guest_vp)];
+
+	rcu_read_lock();
+
+	/* Check the list for matching entries and invalidate */
+	hlist_for_each_entry_rcu(pte, list, list_vpte_64k)
+		if ((pte->pte.vpage & vp_mask) == guest_vp)
+			invalidate_pte(vcpu, pte);
+
+	rcu_read_unlock();
+}
+#endif
+
 /* Flush with mask 0xffffff000 */
 static void kvmppc_mmu_pte_vflush_long(struct kvm_vcpu *vcpu, u64 guest_vp)
 {
@@ -249,6 +290,11 @@ void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 guest_vp, u64 vp_mask)
 	case 0xfffffffffULL:
 		kvmppc_mmu_pte_vflush_short(vcpu, guest_vp);
 		break;
+#ifdef CONFIG_PPC_BOOK3S_64
+	case 0xffffffff0ULL:
+		kvmppc_mmu_pte_vflush_64k(vcpu, guest_vp);
+		break;
+#endif
 	case 0xffffff000ULL:
 		kvmppc_mmu_pte_vflush_long(vcpu, guest_vp);
 		break;
@@ -320,6 +366,10 @@ int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu)
 				  ARRAY_SIZE(vcpu3s->hpte_hash_vpte));
 	kvmppc_mmu_hpte_init_hash(vcpu3s->hpte_hash_vpte_long,
 				  ARRAY_SIZE(vcpu3s->hpte_hash_vpte_long));
+#ifdef CONFIG_PPC_BOOK3S_64
+	kvmppc_mmu_hpte_init_hash(vcpu3s->hpte_hash_vpte_64k,
+				  ARRAY_SIZE(vcpu3s->hpte_hash_vpte_64k));
+#endif
 
 	spin_lock_init(&vcpu3s->mmu_lock);
 
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 228a9baffd9e..6cc99583ed39 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -306,6 +306,23 @@ void kvmppc_set_pvr(struct kvm_vcpu *vcpu, u32 pvr)
 	if (!strcmp(cur_cpu_spec->platform, "ppc-cell-be"))
 		to_book3s(vcpu)->msr_mask &= ~(MSR_FE0 | MSR_FE1);
 
+	/*
+	 * If they're asking for POWER6 or later, set the flag
+	 * indicating that we can do multiple large page sizes
+	 * and 1TB segments.
+	 * Also set the flag that indicates that tlbie has the large
+	 * page bit in the RB operand instead of the instruction.
+	 */
+	switch (PVR_VER(pvr)) {
+	case PVR_POWER6:
+	case PVR_POWER7:
+	case PVR_POWER7p:
+	case PVR_POWER8:
+		vcpu->arch.hflags |= BOOK3S_HFLAG_MULTI_PGSIZE |
+			BOOK3S_HFLAG_NEW_TLBIE;
+		break;
+	}
+
 #ifdef CONFIG_PPC_BOOK3S_32
 	/* 32 bit Book3S always has 32 byte dcbz */
 	vcpu->arch.hflags |= BOOK3S_HFLAG_DCBZ32;
@@ -1130,8 +1147,14 @@ struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
 	vcpu->arch.shared = (void *)(p + PAGE_SIZE - 4096);
 
 #ifdef CONFIG_PPC_BOOK3S_64
-	/* default to book3s_64 (970fx) */
+	/*
+	 * Default to the same as the host if we're on sufficiently
+	 * recent machine that we have 1TB segments;
+	 * otherwise default to PPC970FX.
+	 */
 	vcpu->arch.pvr = 0x3C0301;
+	if (mmu_has_feature(MMU_FTR_1T_SEGMENT))
+		vcpu->arch.pvr = mfspr(SPRN_PVR);
 #else
 	/* default to book3s_32 (750) */
 	vcpu->arch.pvr = 0x84202;
@@ -1317,7 +1340,10 @@ out:
 #ifdef CONFIG_PPC64
 int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm, struct kvm_ppc_smmu_info *info)
 {
-	info->flags = KVM_PPC_1T_SEGMENTS;
+	long int i;
+	struct kvm_vcpu *vcpu;
+
+	info->flags = 0;
 
 	/* SLB is always 64 entries */
 	info->slb_size = 64;
@@ -1328,11 +1354,31 @@ int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm, struct kvm_ppc_smmu_info *info)
 	info->sps[0].enc[0].page_shift = 12;
 	info->sps[0].enc[0].pte_enc = 0;
 
+	/*
+	 * 64k large page size.
+	 * We only want to put this in if the CPUs we're emulating
+	 * support it, but unfortunately we don't have a vcpu easily
+	 * to hand here to test.  Just pick the first vcpu, and if
+	 * that doesn't exist yet, report the minimum capability,
+	 * i.e., no 64k pages.
+	 * 1T segment support goes along with 64k pages.
+	 */
+	i = 1;
+	vcpu = kvm_get_vcpu(kvm, 0);
+	if (vcpu && (vcpu->arch.hflags & BOOK3S_HFLAG_MULTI_PGSIZE)) {
+		info->flags = KVM_PPC_1T_SEGMENTS;
+		info->sps[i].page_shift = 16;
+		info->sps[i].slb_enc = SLB_VSID_L | SLB_VSID_LP_01;
+		info->sps[i].enc[0].page_shift = 16;
+		info->sps[i].enc[0].pte_enc = 1;
+		++i;
+	}
+
 	/* Standard 16M large page size segment */
-	info->sps[1].page_shift = 24;
-	info->sps[1].slb_enc = SLB_VSID_L;
-	info->sps[1].enc[0].page_shift = 24;
-	info->sps[1].enc[0].pte_enc = 0;
+	info->sps[i].page_shift = 24;
+	info->sps[i].slb_enc = SLB_VSID_L;
+	info->sps[i].enc[0].page_shift = 24;
+	info->sps[i].enc[0].pte_enc = 0;
 
 	return 0;
 }
-- 
cgit 


From c9029c341da646ab0c9911ea4c118eaa0a2eb0fa Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 20 Sep 2013 14:52:45 +1000
Subject: KVM: PPC: Book3S PR: Use 64k host pages where possible

Currently, PR KVM uses 4k pages for the host-side mappings of guest
memory, regardless of the host page size.  When the host page size is
64kB, we might as well use 64k host page mappings for guest mappings
of 64kB and larger pages and for guest real-mode mappings.  However,
the magic page has to remain a 4k page.

To implement this, we first add another flag bit to the guest VSID
values we use, to indicate that this segment is one where host pages
should be mapped using 64k pages.  For segments with this bit set
we set the bits in the shadow SLB entry to indicate a 64k base page
size.  When faulting in host HPTEs for this segment, we make them
64k HPTEs instead of 4k.  We record the pagesize in struct hpte_cache
for use when invalidating the HPTE.

For now we restrict the segment containing the magic page (if any) to
4k pages.  It should be possible to lift this restriction in future
by ensuring that the magic 4k page is appropriately positioned within
a host 64k page.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/kvm_book3s.h |  6 ++++--
 arch/powerpc/kvm/book3s_32_mmu.c      |  1 +
 arch/powerpc/kvm/book3s_64_mmu.c      | 35 ++++++++++++++++++++++++++++++-----
 arch/powerpc/kvm/book3s_64_mmu_host.c | 27 +++++++++++++++++++++------
 arch/powerpc/kvm/book3s_pr.c          |  1 +
 5 files changed, 57 insertions(+), 13 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index 1d4a1202e2d5..6bf20b4a2841 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -66,6 +66,7 @@ struct hpte_cache {
 	u64 pfn;
 	ulong slot;
 	struct kvmppc_pte pte;
+	int pagesize;
 };
 
 struct kvmppc_vcpu_book3s {
@@ -113,8 +114,9 @@ struct kvmppc_vcpu_book3s {
 #define CONTEXT_GUEST		1
 #define CONTEXT_GUEST_END	2
 
-#define VSID_REAL	0x0fffffffffc00000ULL
-#define VSID_BAT	0x0fffffffffb00000ULL
+#define VSID_REAL	0x07ffffffffc00000ULL
+#define VSID_BAT	0x07ffffffffb00000ULL
+#define VSID_64K	0x0800000000000000ULL
 #define VSID_1T		0x1000000000000000ULL
 #define VSID_REAL_DR	0x2000000000000000ULL
 #define VSID_REAL_IR	0x4000000000000000ULL
diff --git a/arch/powerpc/kvm/book3s_32_mmu.c b/arch/powerpc/kvm/book3s_32_mmu.c
index c8cefdd15fd8..af045533e685 100644
--- a/arch/powerpc/kvm/book3s_32_mmu.c
+++ b/arch/powerpc/kvm/book3s_32_mmu.c
@@ -308,6 +308,7 @@ static int kvmppc_mmu_book3s_32_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
 	ulong mp_ea = vcpu->arch.magic_page_ea;
 
 	pte->eaddr = eaddr;
+	pte->page_size = MMU_PAGE_4K;
 
 	/* Magic page override */
 	if (unlikely(mp_ea) &&
diff --git a/arch/powerpc/kvm/book3s_64_mmu.c b/arch/powerpc/kvm/book3s_64_mmu.c
index 8277264a0bc5..ffcde01cb995 100644
--- a/arch/powerpc/kvm/book3s_64_mmu.c
+++ b/arch/powerpc/kvm/book3s_64_mmu.c
@@ -542,6 +542,16 @@ static void kvmppc_mmu_book3s_64_tlbie(struct kvm_vcpu *vcpu, ulong va,
 	kvmppc_mmu_pte_vflush(vcpu, va >> 12, mask);
 }
 
+#ifdef CONFIG_PPC_64K_PAGES
+static int segment_contains_magic_page(struct kvm_vcpu *vcpu, ulong esid)
+{
+	ulong mp_ea = vcpu->arch.magic_page_ea;
+
+	return mp_ea && !(vcpu->arch.shared->msr & MSR_PR) &&
+		(mp_ea >> SID_SHIFT) == esid;
+}
+#endif
+
 static int kvmppc_mmu_book3s_64_esid_to_vsid(struct kvm_vcpu *vcpu, ulong esid,
 					     u64 *vsid)
 {
@@ -549,11 +559,13 @@ static int kvmppc_mmu_book3s_64_esid_to_vsid(struct kvm_vcpu *vcpu, ulong esid,
 	struct kvmppc_slb *slb;
 	u64 gvsid = esid;
 	ulong mp_ea = vcpu->arch.magic_page_ea;
+	int pagesize = MMU_PAGE_64K;
 
 	if (vcpu->arch.shared->msr & (MSR_DR|MSR_IR)) {
 		slb = kvmppc_mmu_book3s_64_find_slbe(vcpu, ea);
 		if (slb) {
 			gvsid = slb->vsid;
+			pagesize = slb->base_page_size;
 			if (slb->tb) {
 				gvsid <<= SID_SHIFT_1T - SID_SHIFT;
 				gvsid |= esid & ((1ul << (SID_SHIFT_1T - SID_SHIFT)) - 1);
@@ -564,28 +576,41 @@ static int kvmppc_mmu_book3s_64_esid_to_vsid(struct kvm_vcpu *vcpu, ulong esid,
 
 	switch (vcpu->arch.shared->msr & (MSR_DR|MSR_IR)) {
 	case 0:
-		*vsid = VSID_REAL | esid;
+		gvsid = VSID_REAL | esid;
 		break;
 	case MSR_IR:
-		*vsid = VSID_REAL_IR | gvsid;
+		gvsid |= VSID_REAL_IR;
 		break;
 	case MSR_DR:
-		*vsid = VSID_REAL_DR | gvsid;
+		gvsid |= VSID_REAL_DR;
 		break;
 	case MSR_DR|MSR_IR:
 		if (!slb)
 			goto no_slb;
 
-		*vsid = gvsid;
 		break;
 	default:
 		BUG();
 		break;
 	}
 
+#ifdef CONFIG_PPC_64K_PAGES
+	/*
+	 * Mark this as a 64k segment if the host is using
+	 * 64k pages, the host MMU supports 64k pages and
+	 * the guest segment page size is >= 64k,
+	 * but not if this segment contains the magic page.
+	 */
+	if (pagesize >= MMU_PAGE_64K &&
+	    mmu_psize_defs[MMU_PAGE_64K].shift &&
+	    !segment_contains_magic_page(vcpu, esid))
+		gvsid |= VSID_64K;
+#endif
+
 	if (vcpu->arch.shared->msr & MSR_PR)
-		*vsid |= VSID_PR;
+		gvsid |= VSID_PR;
 
+	*vsid = gvsid;
 	return 0;
 
 no_slb:
diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c b/arch/powerpc/kvm/book3s_64_mmu_host.c
index e5240524bf6c..6bda504ceda7 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_host.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_host.c
@@ -34,7 +34,7 @@
 void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte)
 {
 	ppc_md.hpte_invalidate(pte->slot, pte->host_vpn,
-			       MMU_PAGE_4K, MMU_PAGE_4K, MMU_SEGSIZE_256M,
+			       pte->pagesize, pte->pagesize, MMU_SEGSIZE_256M,
 			       false);
 }
 
@@ -90,6 +90,7 @@ int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte)
 	int attempt = 0;
 	struct kvmppc_sid_map *map;
 	int r = 0;
+	int hpsize = MMU_PAGE_4K;
 
 	/* Get host physical address for gpa */
 	hpaddr = kvmppc_gfn_to_pfn(vcpu, orig_pte->raddr >> PAGE_SHIFT);
@@ -99,7 +100,6 @@ int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte)
 		goto out;
 	}
 	hpaddr <<= PAGE_SHIFT;
-	hpaddr |= orig_pte->raddr & (~0xfffULL & ~PAGE_MASK);
 
 	/* and write the mapping ea -> hpa into the pt */
 	vcpu->arch.mmu.esid_to_vsid(vcpu, orig_pte->eaddr >> SID_SHIFT, &vsid);
@@ -117,8 +117,7 @@ int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte)
 		goto out;
 	}
 
-	vsid = map->host_vsid;
-	vpn = hpt_vpn(orig_pte->eaddr, vsid, MMU_SEGSIZE_256M);
+	vpn = hpt_vpn(orig_pte->eaddr, map->host_vsid, MMU_SEGSIZE_256M);
 
 	if (!orig_pte->may_write)
 		rflags |= HPTE_R_PP;
@@ -130,7 +129,16 @@ int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte)
 	else
 		kvmppc_mmu_flush_icache(hpaddr >> PAGE_SHIFT);
 
-	hash = hpt_hash(vpn, PTE_SIZE, MMU_SEGSIZE_256M);
+	/*
+	 * Use 64K pages if possible; otherwise, on 64K page kernels,
+	 * we need to transfer 4 more bits from guest real to host real addr.
+	 */
+	if (vsid & VSID_64K)
+		hpsize = MMU_PAGE_64K;
+	else
+		hpaddr |= orig_pte->raddr & (~0xfffULL & ~PAGE_MASK);
+
+	hash = hpt_hash(vpn, mmu_psize_defs[hpsize].shift, MMU_SEGSIZE_256M);
 
 map_again:
 	hpteg = ((hash & htab_hash_mask) * HPTES_PER_GROUP);
@@ -143,7 +151,7 @@ map_again:
 		}
 
 	ret = ppc_md.hpte_insert(hpteg, vpn, hpaddr, rflags, vflags,
-				 MMU_PAGE_4K, MMU_PAGE_4K, MMU_SEGSIZE_256M);
+				 hpsize, hpsize, MMU_SEGSIZE_256M);
 
 	if (ret < 0) {
 		/* If we couldn't map a primary PTE, try a secondary */
@@ -168,6 +176,7 @@ map_again:
 		pte->host_vpn = vpn;
 		pte->pte = *orig_pte;
 		pte->pfn = hpaddr >> PAGE_SHIFT;
+		pte->pagesize = hpsize;
 
 		kvmppc_mmu_hpte_cache_map(vcpu, pte);
 	}
@@ -291,6 +300,12 @@ int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr)
 	slb_vsid &= ~SLB_VSID_KP;
 	slb_esid |= slb_index;
 
+#ifdef CONFIG_PPC_64K_PAGES
+	/* Set host segment base page size to 64K if possible */
+	if (gvsid & VSID_64K)
+		slb_vsid |= mmu_psize_defs[MMU_PAGE_64K].sllp;
+#endif
+
 	svcpu->slb[slb_index].esid = slb_esid;
 	svcpu->slb[slb_index].vsid = slb_vsid;
 
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 6cc99583ed39..e9e8c748e673 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -422,6 +422,7 @@ int kvmppc_handle_pagefault(struct kvm_run *run, struct kvm_vcpu *vcpu,
 		pte.raddr = eaddr & KVM_PAM;
 		pte.eaddr = eaddr;
 		pte.vpage = eaddr >> 12;
+		pte.page_size = MMU_PAGE_64K;
 	}
 
 	switch (vcpu->arch.shared->msr & (MSR_DR|MSR_IR)) {
-- 
cgit 


From 03a9c90334d611c3006ac9569579f25f64812bc1 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 20 Sep 2013 14:52:46 +1000
Subject: KVM: PPC: Book3S PR: Handle PP0 page-protection bit in guest HPTEs

64-bit POWER processors have a three-bit field for page protection in
the hashed page table entry (HPTE).  Currently we only interpret the two
bits that were present in older versions of the architecture.  The only
defined combination that has the new bit set is 110, meaning read-only
for supervisor and no access for user mode.

This adds code to kvmppc_mmu_book3s_64_xlate() to interpret the extra
bit appropriately.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/book3s_64_mmu.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/powerpc/kvm/book3s_64_mmu.c b/arch/powerpc/kvm/book3s_64_mmu.c
index ffcde01cb995..9e6e11270b70 100644
--- a/arch/powerpc/kvm/book3s_64_mmu.c
+++ b/arch/powerpc/kvm/book3s_64_mmu.c
@@ -298,6 +298,8 @@ do_second:
 	v = pteg[i];
 	r = pteg[i+1];
 	pp = (r & HPTE_R_PP) | key;
+	if (r & HPTE_R_PP0)
+		pp |= 8;
 
 	gpte->eaddr = eaddr;
 	gpte->vpage = kvmppc_mmu_book3s_64_ea_to_vp(vcpu, eaddr, data);
@@ -319,6 +321,7 @@ do_second:
 	case 3:
 	case 5:
 	case 7:
+	case 10:
 		gpte->may_read = true;
 		break;
 	}
-- 
cgit 


From 5cd92a9521d35013fff904d3c805323027a33d73 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 20 Sep 2013 14:52:47 +1000
Subject: KVM: PPC: Book3S PR: Correct errors in H_ENTER implementation

The implementation of H_ENTER in PR KVM has some errors:

* With H_EXACT not set, if the HPTEG is full, we return H_PTEG_FULL
  as the return value of kvmppc_h_pr_enter, but the caller is expecting
  one of the EMULATE_* values.  The H_PTEG_FULL needs to go in the
  guest's R3 instead.

* With H_EXACT set, if the selected HPTE is already valid, the H_ENTER
  call should return a H_PTEG_FULL error.

This fixes these errors and also makes it write only the selected HPTE,
not the whole group, since only the selected HPTE has been modified.
This also micro-optimizes the calculations involving pte_index and i.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/book3s_pr_papr.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_pr_papr.c b/arch/powerpc/kvm/book3s_pr_papr.c
index da0e0bc268bd..38f189975fe1 100644
--- a/arch/powerpc/kvm/book3s_pr_papr.c
+++ b/arch/powerpc/kvm/book3s_pr_papr.c
@@ -21,6 +21,8 @@
 #include <asm/kvm_ppc.h>
 #include <asm/kvm_book3s.h>
 
+#define HPTE_SIZE	16		/* bytes per HPT entry */
+
 static unsigned long get_pteg_addr(struct kvm_vcpu *vcpu, long pte_index)
 {
 	struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu);
@@ -40,32 +42,39 @@ static int kvmppc_h_pr_enter(struct kvm_vcpu *vcpu)
 	long pte_index = kvmppc_get_gpr(vcpu, 5);
 	unsigned long pteg[2 * 8];
 	unsigned long pteg_addr, i, *hpte;
+	long int ret;
 
+	i = pte_index & 7;
 	pte_index &= ~7UL;
 	pteg_addr = get_pteg_addr(vcpu, pte_index);
 
 	copy_from_user(pteg, (void __user *)pteg_addr, sizeof(pteg));
 	hpte = pteg;
 
+	ret = H_PTEG_FULL;
 	if (likely((flags & H_EXACT) == 0)) {
-		pte_index &= ~7UL;
 		for (i = 0; ; ++i) {
 			if (i == 8)
-				return H_PTEG_FULL;
+				goto done;
 			if ((*hpte & HPTE_V_VALID) == 0)
 				break;
 			hpte += 2;
 		}
 	} else {
-		i = kvmppc_get_gpr(vcpu, 5) & 7UL;
 		hpte += i * 2;
+		if (*hpte & HPTE_V_VALID)
+			goto done;
 	}
 
 	hpte[0] = kvmppc_get_gpr(vcpu, 6);
 	hpte[1] = kvmppc_get_gpr(vcpu, 7);
-	copy_to_user((void __user *)pteg_addr, pteg, sizeof(pteg));
-	kvmppc_set_gpr(vcpu, 3, H_SUCCESS);
+	pteg_addr += i * HPTE_SIZE;
+	copy_to_user((void __user *)pteg_addr, hpte, HPTE_SIZE);
 	kvmppc_set_gpr(vcpu, 4, pte_index | i);
+	ret = H_SUCCESS;
+
+ done:
+	kvmppc_set_gpr(vcpu, 3, ret);
 
 	return EMULATE_DONE;
 }
-- 
cgit 


From 9308ab8e2da933d895ebbb903bf459e33ed94dec Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 20 Sep 2013 14:52:48 +1000
Subject: KVM: PPC: Book3S PR: Make HPT accesses and updates SMP-safe

This adds a per-VM mutex to provide mutual exclusion between vcpus
for accesses to and updates of the guest hashed page table (HPT).
This also makes the code use single-byte writes to the HPT entry
when updating of the reference (R) and change (C) bits.  The reason
for doing this, rather than writing back the whole HPTE, is that on
non-PAPR virtual machines, the guest OS might be writing to the HPTE
concurrently, and writing back the whole HPTE might conflict with
that.  Also, real hardware does single-byte writes to update R and C.

The new mutex is taken in kvmppc_mmu_book3s_64_xlate() when reading
the HPT and updating R and/or C, and in the PAPR HPT update hcalls
(H_ENTER, H_REMOVE, etc.).  Having the mutex means that we don't need
to use a hypervisor lock bit in the HPT update hcalls, and we don't
need to be careful about the order in which the bytes of the HPTE are
updated by those hcalls.

The other change here is to make emulated TLB invalidations (tlbie)
effective across all vcpus.  To do this we call kvmppc_mmu_pte_vflush
for all vcpus in kvmppc_ppc_book3s_64_tlbie().

For 32-bit, this makes the setting of the accessed and dirty bits use
single-byte writes, and makes tlbie invalidate shadow HPTEs for all
vcpus.

With this, PR KVM can successfully run SMP guests.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/kvm_host.h |  3 +++
 arch/powerpc/kvm/book3s_32_mmu.c    | 36 ++++++++++++++++++++++--------------
 arch/powerpc/kvm/book3s_64_mmu.c    | 33 +++++++++++++++++++++++----------
 arch/powerpc/kvm/book3s_pr.c        |  1 +
 arch/powerpc/kvm/book3s_pr_papr.c   | 33 +++++++++++++++++++++++----------
 5 files changed, 72 insertions(+), 34 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 3d8b8a8921f0..0fe48729d07d 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -254,6 +254,9 @@ struct kvm_arch {
 	struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
 	int hpt_cma_alloc;
 #endif /* CONFIG_KVM_BOOK3S_64_HV */
+#ifdef CONFIG_KVM_BOOK3S_PR
+	struct mutex hpt_mutex;
+#endif
 #ifdef CONFIG_PPC_BOOK3S_64
 	struct list_head spapr_tce_tables;
 	struct list_head rtas_tokens;
diff --git a/arch/powerpc/kvm/book3s_32_mmu.c b/arch/powerpc/kvm/book3s_32_mmu.c
index af045533e685..856af988ad59 100644
--- a/arch/powerpc/kvm/book3s_32_mmu.c
+++ b/arch/powerpc/kvm/book3s_32_mmu.c
@@ -271,19 +271,22 @@ static int kvmppc_mmu_book3s_32_xlate_pte(struct kvm_vcpu *vcpu, gva_t eaddr,
 	/* Update PTE C and A bits, so the guest's swapper knows we used the
 	   page */
 	if (found) {
-		u32 oldpte = pteg[i+1];
-
-		if (pte->may_read)
-			pteg[i+1] |= PTEG_FLAG_ACCESSED;
-		if (pte->may_write)
-			pteg[i+1] |= PTEG_FLAG_DIRTY;
-		else
-			dprintk_pte("KVM: Mapping read-only page!\n");
-
-		/* Write back into the PTEG */
-		if (pteg[i+1] != oldpte)
-			copy_to_user((void __user *)ptegp, pteg, sizeof(pteg));
-
+		u32 pte_r = pteg[i+1];
+		char __user *addr = (char __user *) &pteg[i+1];
+
+		/*
+		 * Use single-byte writes to update the HPTE, to
+		 * conform to what real hardware does.
+		 */
+		if (pte->may_read && !(pte_r & PTEG_FLAG_ACCESSED)) {
+			pte_r |= PTEG_FLAG_ACCESSED;
+			put_user(pte_r >> 8, addr + 2);
+		}
+		if (pte->may_write && !(pte_r & PTEG_FLAG_DIRTY)) {
+			/* XXX should only set this for stores */
+			pte_r |= PTEG_FLAG_DIRTY;
+			put_user(pte_r, addr + 3);
+		}
 		return 0;
 	}
 
@@ -348,7 +351,12 @@ static void kvmppc_mmu_book3s_32_mtsrin(struct kvm_vcpu *vcpu, u32 srnum,
 
 static void kvmppc_mmu_book3s_32_tlbie(struct kvm_vcpu *vcpu, ulong ea, bool large)
 {
-	kvmppc_mmu_pte_flush(vcpu, ea, 0x0FFFF000);
+	int i;
+	struct kvm_vcpu *v;
+
+	/* flush this VA on all cpus */
+	kvm_for_each_vcpu(i, v, vcpu->kvm)
+		kvmppc_mmu_pte_flush(v, ea, 0x0FFFF000);
 }
 
 static int kvmppc_mmu_book3s_32_esid_to_vsid(struct kvm_vcpu *vcpu, ulong esid,
diff --git a/arch/powerpc/kvm/book3s_64_mmu.c b/arch/powerpc/kvm/book3s_64_mmu.c
index 9e6e11270b70..ad9ecfd29c4c 100644
--- a/arch/powerpc/kvm/book3s_64_mmu.c
+++ b/arch/powerpc/kvm/book3s_64_mmu.c
@@ -257,6 +257,8 @@ static int kvmppc_mmu_book3s_64_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
 
 	pgsize = slbe->large ? MMU_PAGE_16M : MMU_PAGE_4K;
 
+	mutex_lock(&vcpu->kvm->arch.hpt_mutex);
+
 do_second:
 	ptegp = kvmppc_mmu_book3s_64_get_pteg(vcpu_book3s, slbe, eaddr, second);
 	if (kvm_is_error_hva(ptegp))
@@ -332,30 +334,37 @@ do_second:
 
 	/* Update PTE R and C bits, so the guest's swapper knows we used the
 	 * page */
-	if (gpte->may_read) {
-		/* Set the accessed flag */
+	if (gpte->may_read && !(r & HPTE_R_R)) {
+		/*
+		 * Set the accessed flag.
+		 * We have to write this back with a single byte write
+		 * because another vcpu may be accessing this on
+		 * non-PAPR platforms such as mac99, and this is
+		 * what real hardware does.
+		 */
+		char __user *addr = (char __user *) &pteg[i+1];
 		r |= HPTE_R_R;
+		put_user(r >> 8, addr + 6);
 	}
-	if (data && gpte->may_write) {
+	if (data && gpte->may_write && !(r & HPTE_R_C)) {
 		/* Set the dirty flag -- XXX even if not writing */
+		/* Use a single byte write */
+		char __user *addr = (char __user *) &pteg[i+1];
 		r |= HPTE_R_C;
+		put_user(r, addr + 7);
 	}
 
-	/* Write back into the PTEG */
-	if (pteg[i+1] != r) {
-		pteg[i+1] = r;
-		copy_to_user((void __user *)ptegp, pteg, sizeof(pteg));
-	}
+	mutex_unlock(&vcpu->kvm->arch.hpt_mutex);
 
 	if (!gpte->may_read)
 		return -EPERM;
 	return 0;
 
 no_page_found:
+	mutex_unlock(&vcpu->kvm->arch.hpt_mutex);
 	return -ENOENT;
 
 no_seg_found:
-
 	dprintk("KVM MMU: Trigger segment fault\n");
 	return -EINVAL;
 }
@@ -520,6 +529,8 @@ static void kvmppc_mmu_book3s_64_tlbie(struct kvm_vcpu *vcpu, ulong va,
 				       bool large)
 {
 	u64 mask = 0xFFFFFFFFFULL;
+	long i;
+	struct kvm_vcpu *v;
 
 	dprintk("KVM MMU: tlbie(0x%lx)\n", va);
 
@@ -542,7 +553,9 @@ static void kvmppc_mmu_book3s_64_tlbie(struct kvm_vcpu *vcpu, ulong va,
 		if (large)
 			mask = 0xFFFFFF000ULL;
 	}
-	kvmppc_mmu_pte_vflush(vcpu, va >> 12, mask);
+	/* flush this VA on all vcpus */
+	kvm_for_each_vcpu(i, v, vcpu->kvm)
+		kvmppc_mmu_pte_vflush(v, va >> 12, mask);
 }
 
 #ifdef CONFIG_PPC_64K_PAGES
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index e9e8c748e673..4fa73c3f5713 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -1422,6 +1422,7 @@ int kvmppc_core_init_vm(struct kvm *kvm)
 	INIT_LIST_HEAD(&kvm->arch.spapr_tce_tables);
 	INIT_LIST_HEAD(&kvm->arch.rtas_tokens);
 #endif
+	mutex_init(&kvm->arch.hpt_mutex);
 
 	if (firmware_has_feature(FW_FEATURE_SET_MODE)) {
 		spin_lock(&kvm_global_user_count_lock);
diff --git a/arch/powerpc/kvm/book3s_pr_papr.c b/arch/powerpc/kvm/book3s_pr_papr.c
index 38f189975fe1..5efa97b993d8 100644
--- a/arch/powerpc/kvm/book3s_pr_papr.c
+++ b/arch/powerpc/kvm/book3s_pr_papr.c
@@ -48,6 +48,7 @@ static int kvmppc_h_pr_enter(struct kvm_vcpu *vcpu)
 	pte_index &= ~7UL;
 	pteg_addr = get_pteg_addr(vcpu, pte_index);
 
+	mutex_lock(&vcpu->kvm->arch.hpt_mutex);
 	copy_from_user(pteg, (void __user *)pteg_addr, sizeof(pteg));
 	hpte = pteg;
 
@@ -74,6 +75,7 @@ static int kvmppc_h_pr_enter(struct kvm_vcpu *vcpu)
 	ret = H_SUCCESS;
 
  done:
+	mutex_unlock(&vcpu->kvm->arch.hpt_mutex);
 	kvmppc_set_gpr(vcpu, 3, ret);
 
 	return EMULATE_DONE;
@@ -86,26 +88,31 @@ static int kvmppc_h_pr_remove(struct kvm_vcpu *vcpu)
 	unsigned long avpn = kvmppc_get_gpr(vcpu, 6);
 	unsigned long v = 0, pteg, rb;
 	unsigned long pte[2];
+	long int ret;
 
 	pteg = get_pteg_addr(vcpu, pte_index);
+	mutex_lock(&vcpu->kvm->arch.hpt_mutex);
 	copy_from_user(pte, (void __user *)pteg, sizeof(pte));
 
+	ret = H_NOT_FOUND;
 	if ((pte[0] & HPTE_V_VALID) == 0 ||
 	    ((flags & H_AVPN) && (pte[0] & ~0x7fUL) != avpn) ||
-	    ((flags & H_ANDCOND) && (pte[0] & avpn) != 0)) {
-		kvmppc_set_gpr(vcpu, 3, H_NOT_FOUND);
-		return EMULATE_DONE;
-	}
+	    ((flags & H_ANDCOND) && (pte[0] & avpn) != 0))
+		goto done;
 
 	copy_to_user((void __user *)pteg, &v, sizeof(v));
 
 	rb = compute_tlbie_rb(pte[0], pte[1], pte_index);
 	vcpu->arch.mmu.tlbie(vcpu, rb, rb & 1 ? true : false);
 
-	kvmppc_set_gpr(vcpu, 3, H_SUCCESS);
+	ret = H_SUCCESS;
 	kvmppc_set_gpr(vcpu, 4, pte[0]);
 	kvmppc_set_gpr(vcpu, 5, pte[1]);
 
+ done:
+	mutex_unlock(&vcpu->kvm->arch.hpt_mutex);
+	kvmppc_set_gpr(vcpu, 3, ret);
+
 	return EMULATE_DONE;
 }
 
@@ -133,6 +140,7 @@ static int kvmppc_h_pr_bulk_remove(struct kvm_vcpu *vcpu)
 	int paramnr = 4;
 	int ret = H_SUCCESS;
 
+	mutex_lock(&vcpu->kvm->arch.hpt_mutex);
 	for (i = 0; i < H_BULK_REMOVE_MAX_BATCH; i++) {
 		unsigned long tsh = kvmppc_get_gpr(vcpu, paramnr+(2*i));
 		unsigned long tsl = kvmppc_get_gpr(vcpu, paramnr+(2*i)+1);
@@ -181,6 +189,7 @@ static int kvmppc_h_pr_bulk_remove(struct kvm_vcpu *vcpu)
 		}
 		kvmppc_set_gpr(vcpu, paramnr+(2*i), tsh);
 	}
+	mutex_unlock(&vcpu->kvm->arch.hpt_mutex);
 	kvmppc_set_gpr(vcpu, 3, ret);
 
 	return EMULATE_DONE;
@@ -193,15 +202,16 @@ static int kvmppc_h_pr_protect(struct kvm_vcpu *vcpu)
 	unsigned long avpn = kvmppc_get_gpr(vcpu, 6);
 	unsigned long rb, pteg, r, v;
 	unsigned long pte[2];
+	long int ret;
 
 	pteg = get_pteg_addr(vcpu, pte_index);
+	mutex_lock(&vcpu->kvm->arch.hpt_mutex);
 	copy_from_user(pte, (void __user *)pteg, sizeof(pte));
 
+	ret = H_NOT_FOUND;
 	if ((pte[0] & HPTE_V_VALID) == 0 ||
-	    ((flags & H_AVPN) && (pte[0] & ~0x7fUL) != avpn)) {
-		kvmppc_set_gpr(vcpu, 3, H_NOT_FOUND);
-		return EMULATE_DONE;
-	}
+	    ((flags & H_AVPN) && (pte[0] & ~0x7fUL) != avpn))
+		goto done;
 
 	v = pte[0];
 	r = pte[1];
@@ -216,8 +226,11 @@ static int kvmppc_h_pr_protect(struct kvm_vcpu *vcpu)
 	rb = compute_tlbie_rb(v, r, pte_index);
 	vcpu->arch.mmu.tlbie(vcpu, rb, rb & 1 ? true : false);
 	copy_to_user((void __user *)pteg, pte, sizeof(pte));
+	ret = H_SUCCESS;
 
-	kvmppc_set_gpr(vcpu, 3, H_SUCCESS);
+ done:
+	mutex_unlock(&vcpu->kvm->arch.hpt_mutex);
+	kvmppc_set_gpr(vcpu, 3, ret);
 
 	return EMULATE_DONE;
 }
-- 
cgit 


From 3ff955024d186c512ee91263df9c850d6ae34a12 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 20 Sep 2013 14:52:49 +1000
Subject: KVM: PPC: Book3S PR: Allocate kvm_vcpu structs from kvm_vcpu_cache

This makes PR KVM allocate its kvm_vcpu structs from the kvm_vcpu_cache
rather than having them embedded in the kvmppc_vcpu_book3s struct,
which is allocated with vzalloc.  The reason is to reduce the
differences between PR and HV KVM in order to make is easier to have
them coexist in one kernel binary.

With this, the kvm_vcpu struct has a pointer to the kvmppc_vcpu_book3s
struct.  The pointer to the kvmppc_book3s_shadow_vcpu struct has moved
from the kvmppc_vcpu_book3s struct to the kvm_vcpu struct, and is only
present for 32-bit, since it is only used for 32-bit.

Signed-off-by: Paul Mackerras <paulus@samba.org>
[agraf: squash in compile fix from Aneesh]
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/kvm_book3s.h    |  4 +---
 arch/powerpc/include/asm/kvm_book3s_32.h |  2 +-
 arch/powerpc/include/asm/kvm_host.h      |  7 +++++++
 arch/powerpc/kvm/book3s_32_mmu.c         |  8 ++++----
 arch/powerpc/kvm/book3s_64_mmu.c         | 11 +++++------
 arch/powerpc/kvm/book3s_pr.c             | 33 ++++++++++++++++++++------------
 6 files changed, 39 insertions(+), 26 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index 6bf20b4a2841..603fba494a0b 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -70,8 +70,6 @@ struct hpte_cache {
 };
 
 struct kvmppc_vcpu_book3s {
-	struct kvm_vcpu vcpu;
-	struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
 	struct kvmppc_sid_map sid_map[SID_MAP_NUM];
 	struct {
 		u64 esid;
@@ -194,7 +192,7 @@ extern int kvmppc_h_pr(struct kvm_vcpu *vcpu, unsigned long cmd);
 
 static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
 {
-	return container_of(vcpu, struct kvmppc_vcpu_book3s, vcpu);
+	return vcpu->arch.book3s;
 }
 
 extern void kvm_return_point(void);
diff --git a/arch/powerpc/include/asm/kvm_book3s_32.h b/arch/powerpc/include/asm/kvm_book3s_32.h
index ce0ef6ce8f86..c720e0b3238d 100644
--- a/arch/powerpc/include/asm/kvm_book3s_32.h
+++ b/arch/powerpc/include/asm/kvm_book3s_32.h
@@ -22,7 +22,7 @@
 
 static inline struct kvmppc_book3s_shadow_vcpu *svcpu_get(struct kvm_vcpu *vcpu)
 {
-	return to_book3s(vcpu)->shadow_vcpu;
+	return vcpu->arch.shadow_vcpu;
 }
 
 static inline void svcpu_put(struct kvmppc_book3s_shadow_vcpu *svcpu)
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 0fe48729d07d..404dbc81434d 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -86,6 +86,9 @@ struct lppaca;
 struct slb_shadow;
 struct dtl_entry;
 
+struct kvmppc_vcpu_book3s;
+struct kvmppc_book3s_shadow_vcpu;
+
 struct kvm_vm_stat {
 	u32 remote_tlb_flush;
 };
@@ -408,6 +411,10 @@ struct kvm_vcpu_arch {
 	int slb_max;		/* 1 + index of last valid entry in slb[] */
 	int slb_nr;		/* total number of entries in SLB */
 	struct kvmppc_mmu mmu;
+	struct kvmppc_vcpu_book3s *book3s;
+#endif
+#ifdef CONFIG_PPC_BOOK3S_32
+	struct kvmppc_book3s_shadow_vcpu *shadow_vcpu;
 #endif
 
 	ulong gpr[32];
diff --git a/arch/powerpc/kvm/book3s_32_mmu.c b/arch/powerpc/kvm/book3s_32_mmu.c
index 856af988ad59..b14af6d09347 100644
--- a/arch/powerpc/kvm/book3s_32_mmu.c
+++ b/arch/powerpc/kvm/book3s_32_mmu.c
@@ -111,10 +111,11 @@ static void kvmppc_mmu_book3s_32_reset_msr(struct kvm_vcpu *vcpu)
 	kvmppc_set_msr(vcpu, 0);
 }
 
-static hva_t kvmppc_mmu_book3s_32_get_pteg(struct kvmppc_vcpu_book3s *vcpu_book3s,
+static hva_t kvmppc_mmu_book3s_32_get_pteg(struct kvm_vcpu *vcpu,
 				      u32 sre, gva_t eaddr,
 				      bool primary)
 {
+	struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu);
 	u32 page, hash, pteg, htabmask;
 	hva_t r;
 
@@ -132,7 +133,7 @@ static hva_t kvmppc_mmu_book3s_32_get_pteg(struct kvmppc_vcpu_book3s *vcpu_book3
 		kvmppc_get_pc(&vcpu_book3s->vcpu), eaddr, vcpu_book3s->sdr1, pteg,
 		sr_vsid(sre));
 
-	r = gfn_to_hva(vcpu_book3s->vcpu.kvm, pteg >> PAGE_SHIFT);
+	r = gfn_to_hva(vcpu->kvm, pteg >> PAGE_SHIFT);
 	if (kvm_is_error_hva(r))
 		return r;
 	return r | (pteg & ~PAGE_MASK);
@@ -203,7 +204,6 @@ static int kvmppc_mmu_book3s_32_xlate_pte(struct kvm_vcpu *vcpu, gva_t eaddr,
 				     struct kvmppc_pte *pte, bool data,
 				     bool primary)
 {
-	struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu);
 	u32 sre;
 	hva_t ptegp;
 	u32 pteg[16];
@@ -218,7 +218,7 @@ static int kvmppc_mmu_book3s_32_xlate_pte(struct kvm_vcpu *vcpu, gva_t eaddr,
 
 	pte->vpage = kvmppc_mmu_book3s_32_ea_to_vp(vcpu, eaddr, data);
 
-	ptegp = kvmppc_mmu_book3s_32_get_pteg(vcpu_book3s, sre, eaddr, primary);
+	ptegp = kvmppc_mmu_book3s_32_get_pteg(vcpu, sre, eaddr, primary);
 	if (kvm_is_error_hva(ptegp)) {
 		printk(KERN_INFO "KVM: Invalid PTEG!\n");
 		goto no_page_found;
diff --git a/arch/powerpc/kvm/book3s_64_mmu.c b/arch/powerpc/kvm/book3s_64_mmu.c
index ad9ecfd29c4c..c110145522e6 100644
--- a/arch/powerpc/kvm/book3s_64_mmu.c
+++ b/arch/powerpc/kvm/book3s_64_mmu.c
@@ -130,11 +130,11 @@ static u32 kvmppc_mmu_book3s_64_get_page(struct kvmppc_slb *slbe, gva_t eaddr)
 	return ((eaddr & kvmppc_slb_offset_mask(slbe)) >> p);
 }
 
-static hva_t kvmppc_mmu_book3s_64_get_pteg(
-				struct kvmppc_vcpu_book3s *vcpu_book3s,
+static hva_t kvmppc_mmu_book3s_64_get_pteg(struct kvm_vcpu *vcpu,
 				struct kvmppc_slb *slbe, gva_t eaddr,
 				bool second)
 {
+	struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu);
 	u64 hash, pteg, htabsize;
 	u32 ssize;
 	hva_t r;
@@ -159,10 +159,10 @@ static hva_t kvmppc_mmu_book3s_64_get_pteg(
 
 	/* When running a PAPR guest, SDR1 contains a HVA address instead
            of a GPA */
-	if (vcpu_book3s->vcpu.arch.papr_enabled)
+	if (vcpu->arch.papr_enabled)
 		r = pteg;
 	else
-		r = gfn_to_hva(vcpu_book3s->vcpu.kvm, pteg >> PAGE_SHIFT);
+		r = gfn_to_hva(vcpu->kvm, pteg >> PAGE_SHIFT);
 
 	if (kvm_is_error_hva(r))
 		return r;
@@ -208,7 +208,6 @@ static int decode_pagesize(struct kvmppc_slb *slbe, u64 r)
 static int kvmppc_mmu_book3s_64_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
 				struct kvmppc_pte *gpte, bool data)
 {
-	struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu);
 	struct kvmppc_slb *slbe;
 	hva_t ptegp;
 	u64 pteg[16];
@@ -260,7 +259,7 @@ static int kvmppc_mmu_book3s_64_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
 	mutex_lock(&vcpu->kvm->arch.hpt_mutex);
 
 do_second:
-	ptegp = kvmppc_mmu_book3s_64_get_pteg(vcpu_book3s, slbe, eaddr, second);
+	ptegp = kvmppc_mmu_book3s_64_get_pteg(vcpu, slbe, eaddr, second);
 	if (kvm_is_error_hva(ptegp))
 		goto no_page_found;
 
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 4fa73c3f5713..677d7e33b1ff 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -66,7 +66,7 @@ void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 #endif
 	vcpu->cpu = smp_processor_id();
 #ifdef CONFIG_PPC_BOOK3S_32
-	current->thread.kvm_shadow_vcpu = to_book3s(vcpu)->shadow_vcpu;
+	current->thread.kvm_shadow_vcpu = vcpu->arch.shadow_vcpu;
 #endif
 }
 
@@ -1125,17 +1125,22 @@ struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
 	int err = -ENOMEM;
 	unsigned long p;
 
+	vcpu = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL);
+	if (!vcpu)
+		goto out;
+
 	vcpu_book3s = vzalloc(sizeof(struct kvmppc_vcpu_book3s));
 	if (!vcpu_book3s)
-		goto out;
+		goto free_vcpu;
+	vcpu->arch.book3s = vcpu_book3s;
 
 #ifdef CONFIG_KVM_BOOK3S_32
-	vcpu_book3s->shadow_vcpu =
-		kzalloc(sizeof(*vcpu_book3s->shadow_vcpu), GFP_KERNEL);
-	if (!vcpu_book3s->shadow_vcpu)
-		goto free_vcpu;
+	vcpu->arch.shadow_vcpu =
+		kzalloc(sizeof(*vcpu->arch.shadow_vcpu), GFP_KERNEL);
+	if (!vcpu->arch.shadow_vcpu)
+		goto free_vcpu3s;
 #endif
-	vcpu = &vcpu_book3s->vcpu;
+
 	err = kvm_vcpu_init(vcpu, kvm, id);
 	if (err)
 		goto free_shadow_vcpu;
@@ -1175,10 +1180,12 @@ uninit_vcpu:
 	kvm_vcpu_uninit(vcpu);
 free_shadow_vcpu:
 #ifdef CONFIG_KVM_BOOK3S_32
-	kfree(vcpu_book3s->shadow_vcpu);
-free_vcpu:
+	kfree(vcpu->arch.shadow_vcpu);
+free_vcpu3s:
 #endif
 	vfree(vcpu_book3s);
+free_vcpu:
+	kmem_cache_free(kvm_vcpu_cache, vcpu);
 out:
 	return ERR_PTR(err);
 }
@@ -1189,8 +1196,11 @@ void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
 
 	free_page((unsigned long)vcpu->arch.shared & PAGE_MASK);
 	kvm_vcpu_uninit(vcpu);
-	kfree(vcpu_book3s->shadow_vcpu);
+#ifdef CONFIG_KVM_BOOK3S_32
+	kfree(vcpu->arch.shadow_vcpu);
+#endif
 	vfree(vcpu_book3s);
+	kmem_cache_free(kvm_vcpu_cache, vcpu);
 }
 
 int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
@@ -1452,8 +1462,7 @@ static int kvmppc_book3s_init(void)
 {
 	int r;
 
-	r = kvm_init(NULL, sizeof(struct kvmppc_vcpu_book3s), 0,
-		     THIS_MODULE);
+	r = kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE);
 
 	if (r)
 		return r;
-- 
cgit 


From 4f6c11db10159e362b0100d41b35bf6d731eb4e2 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 20 Sep 2013 14:52:50 +1000
Subject: KVM: PPC: Book3S: Move skip-interrupt handlers to common code

Both PR and HV KVM have separate, identical copies of the
kvmppc_skip_interrupt and kvmppc_skip_Hinterrupt handlers that are
used for the situation where an interrupt happens when loading the
instruction that caused an exit from the guest.  To eliminate this
duplication and make it easier to compile in both PR and HV KVM,
this moves this code to arch/powerpc/kernel/exceptions-64s.S along
with other kernel interrupt handler code.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kernel/exceptions-64s.S    | 26 ++++++++++++++++++++++++++
 arch/powerpc/kvm/book3s_hv_rmhandlers.S | 24 ------------------------
 arch/powerpc/kvm/book3s_rmhandlers.S    | 26 --------------------------
 3 files changed, 26 insertions(+), 50 deletions(-)

diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 3a9ed6ac224b..2a273bed1ec8 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -650,6 +650,32 @@ slb_miss_user_pseries:
 	b	.				/* prevent spec. execution */
 #endif /* __DISABLED__ */
 
+#ifdef CONFIG_KVM_BOOK3S_64_HANDLER
+kvmppc_skip_interrupt:
+	/*
+	 * Here all GPRs are unchanged from when the interrupt happened
+	 * except for r13, which is saved in SPRG_SCRATCH0.
+	 */
+	mfspr	r13, SPRN_SRR0
+	addi	r13, r13, 4
+	mtspr	SPRN_SRR0, r13
+	GET_SCRATCH0(r13)
+	rfid
+	b	.
+
+kvmppc_skip_Hinterrupt:
+	/*
+	 * Here all GPRs are unchanged from when the interrupt happened
+	 * except for r13, which is saved in SPRG_SCRATCH0.
+	 */
+	mfspr	r13, SPRN_HSRR0
+	addi	r13, r13, 4
+	mtspr	SPRN_HSRR0, r13
+	GET_SCRATCH0(r13)
+	hrfid
+	b	.
+#endif
+
 /*
  * Code from here down to __end_handlers is invoked from the
  * exception prologs above.  Because the prologs assemble the
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index cd39632a646e..6e3370f42a63 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -33,30 +33,6 @@
 #error Need to fix lppaca and SLB shadow accesses in little endian mode
 #endif
 
-/*****************************************************************************
- *                                                                           *
- *        Real Mode handlers that need to be in the linear mapping           *
- *                                                                           *
- ****************************************************************************/
-
-	.globl	kvmppc_skip_interrupt
-kvmppc_skip_interrupt:
-	mfspr	r13,SPRN_SRR0
-	addi	r13,r13,4
-	mtspr	SPRN_SRR0,r13
-	GET_SCRATCH0(r13)
-	rfid
-	b	.
-
-	.globl	kvmppc_skip_Hinterrupt
-kvmppc_skip_Hinterrupt:
-	mfspr	r13,SPRN_HSRR0
-	addi	r13,r13,4
-	mtspr	SPRN_HSRR0,r13
-	GET_SCRATCH0(r13)
-	hrfid
-	b	.
-
 /*
  * Call kvmppc_hv_entry in real mode.
  * Must be called with interrupts hard-disabled.
diff --git a/arch/powerpc/kvm/book3s_rmhandlers.S b/arch/powerpc/kvm/book3s_rmhandlers.S
index cd59a3a38482..a38c4c9edab8 100644
--- a/arch/powerpc/kvm/book3s_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_rmhandlers.S
@@ -38,32 +38,6 @@
 
 #define FUNC(name) 		GLUE(.,name)
 
-	.globl	kvmppc_skip_interrupt
-kvmppc_skip_interrupt:
-	/*
-	 * Here all GPRs are unchanged from when the interrupt happened
-	 * except for r13, which is saved in SPRG_SCRATCH0.
-	 */
-	mfspr	r13, SPRN_SRR0
-	addi	r13, r13, 4
-	mtspr	SPRN_SRR0, r13
-	GET_SCRATCH0(r13)
-	rfid
-	b	.
-
-	.globl	kvmppc_skip_Hinterrupt
-kvmppc_skip_Hinterrupt:
-	/*
-	 * Here all GPRs are unchanged from when the interrupt happened
-	 * except for r13, which is saved in SPRG_SCRATCH0.
-	 */
-	mfspr	r13, SPRN_HSRR0
-	addi	r13, r13, 4
-	mtspr	SPRN_HSRR0, r13
-	GET_SCRATCH0(r13)
-	hrfid
-	b	.
-
 #elif defined(CONFIG_PPC_BOOK3S_32)
 
 #define FUNC(name)		name
-- 
cgit 


From 93b159b466bdc9753bba5c3c51b40d7ddbbcc07c Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 20 Sep 2013 14:52:51 +1000
Subject: KVM: PPC: Book3S PR: Better handling of host-side read-only pages

Currently we request write access to all pages that get mapped into the
guest, even if the guest is only loading from the page.  This reduces
the effectiveness of KSM because it means that we unshare every page we
access.  Also, we always set the changed (C) bit in the guest HPTE if
it allows writing, even for a guest load.

This fixes both these problems.  We pass an 'iswrite' flag to the
mmu.xlate() functions and to kvmppc_mmu_map_page() to indicate whether
the access is a load or a store.  The mmu.xlate() functions now only
set C for stores.  kvmppc_gfn_to_pfn() now calls gfn_to_pfn_prot()
instead of gfn_to_pfn() so that it can indicate whether we need write
access to the page, and get back a 'writable' flag to indicate whether
the page is writable or not.  If that 'writable' flag is clear, we then
make the host HPTE read-only even if the guest HPTE allowed writing.

This means that we can get a protection fault when the guest writes to a
page that it has mapped read-write but which is read-only on the host
side (perhaps due to KSM having merged the page).  Thus we now call
kvmppc_handle_pagefault() for protection faults as well as HPTE not found
faults.  In kvmppc_handle_pagefault(), if the access was allowed by the
guest HPTE and we thus need to install a new host HPTE, we then need to
remove the old host HPTE if there is one.  This is done with a new
function, kvmppc_mmu_unmap_page(), which uses kvmppc_mmu_pte_vflush() to
find and remove the old host HPTE.

Since the memslot-related functions require the KVM SRCU read lock to
be held, this adds srcu_read_lock/unlock pairs around the calls to
kvmppc_handle_pagefault().

Finally, this changes kvmppc_mmu_book3s_32_xlate_pte() to not ignore
guest HPTEs that don't permit access, and to return -EPERM for accesses
that are not permitted by the page protections.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/kvm_book3s.h |  7 +++++--
 arch/powerpc/include/asm/kvm_host.h   |  3 ++-
 arch/powerpc/kvm/book3s.c             | 15 +++++++++------
 arch/powerpc/kvm/book3s_32_mmu.c      | 32 +++++++++++++++++---------------
 arch/powerpc/kvm/book3s_32_mmu_host.c | 14 +++++++++++---
 arch/powerpc/kvm/book3s_64_mmu.c      |  9 +++++----
 arch/powerpc/kvm/book3s_64_mmu_host.c | 20 +++++++++++++++++---
 arch/powerpc/kvm/book3s_64_mmu_hv.c   |  2 +-
 arch/powerpc/kvm/book3s_pr.c          | 29 ++++++++++++++++++++++++-----
 9 files changed, 91 insertions(+), 40 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index 603fba494a0b..a07bd7e7d4a4 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -128,7 +128,9 @@ extern void kvmppc_set_pvr(struct kvm_vcpu *vcpu, u32 pvr);
 extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
 extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
 extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu);
-extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte);
+extern int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte,
+			       bool iswrite);
+extern void kvmppc_mmu_unmap_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte);
 extern int kvmppc_mmu_map_segment(struct kvm_vcpu *vcpu, ulong eaddr);
 extern void kvmppc_mmu_flush_segment(struct kvm_vcpu *vcpu, ulong eaddr, ulong seg_size);
 extern void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu);
@@ -157,7 +159,8 @@ extern void kvmppc_set_bat(struct kvm_vcpu *vcpu, struct kvmppc_bat *bat,
 			   bool upper, u32 val);
 extern void kvmppc_giveup_ext(struct kvm_vcpu *vcpu, ulong msr);
 extern int kvmppc_emulate_paired_single(struct kvm_run *run, struct kvm_vcpu *vcpu);
-extern pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn);
+extern pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn, bool writing,
+			bool *writable);
 extern void kvmppc_add_revmap_chain(struct kvm *kvm, struct revmap_entry *rev,
 			unsigned long *rmap, long pte_index, int realmode);
 extern void kvmppc_invalidate_hpte(struct kvm *kvm, unsigned long *hptep,
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 404dbc81434d..b6881917cd84 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -348,7 +348,8 @@ struct kvmppc_mmu {
 	/* book3s */
 	void (*mtsrin)(struct kvm_vcpu *vcpu, u32 srnum, ulong value);
 	u32  (*mfsrin)(struct kvm_vcpu *vcpu, u32 srnum);
-	int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr, struct kvmppc_pte *pte, bool data);
+	int  (*xlate)(struct kvm_vcpu *vcpu, gva_t eaddr,
+		      struct kvmppc_pte *pte, bool data, bool iswrite);
 	void (*reset_msr)(struct kvm_vcpu *vcpu);
 	void (*tlbie)(struct kvm_vcpu *vcpu, ulong addr, bool large);
 	int  (*esid_to_vsid)(struct kvm_vcpu *vcpu, ulong esid, u64 *vsid);
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index f97369dc457c..807103ad2628 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -286,7 +286,8 @@ int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu)
 	return 0;
 }
 
-pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn)
+pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn, bool writing,
+			bool *writable)
 {
 	ulong mp_pa = vcpu->arch.magic_page_pa;
 
@@ -302,20 +303,22 @@ pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn)
 
 		pfn = (pfn_t)virt_to_phys((void*)shared_page) >> PAGE_SHIFT;
 		get_page(pfn_to_page(pfn));
+		if (writable)
+			*writable = true;
 		return pfn;
 	}
 
-	return gfn_to_pfn(vcpu->kvm, gfn);
+	return gfn_to_pfn_prot(vcpu->kvm, gfn, writing, writable);
 }
 
 static int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr, bool data,
-			 struct kvmppc_pte *pte)
+			bool iswrite, struct kvmppc_pte *pte)
 {
 	int relocated = (vcpu->arch.shared->msr & (data ? MSR_DR : MSR_IR));
 	int r;
 
 	if (relocated) {
-		r = vcpu->arch.mmu.xlate(vcpu, eaddr, pte, data);
+		r = vcpu->arch.mmu.xlate(vcpu, eaddr, pte, data, iswrite);
 	} else {
 		pte->eaddr = eaddr;
 		pte->raddr = eaddr & KVM_PAM;
@@ -361,7 +364,7 @@ int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
 
 	vcpu->stat.st++;
 
-	if (kvmppc_xlate(vcpu, *eaddr, data, &pte))
+	if (kvmppc_xlate(vcpu, *eaddr, data, true, &pte))
 		return -ENOENT;
 
 	*eaddr = pte.raddr;
@@ -383,7 +386,7 @@ int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
 
 	vcpu->stat.ld++;
 
-	if (kvmppc_xlate(vcpu, *eaddr, data, &pte))
+	if (kvmppc_xlate(vcpu, *eaddr, data, false, &pte))
 		goto nopte;
 
 	*eaddr = pte.raddr;
diff --git a/arch/powerpc/kvm/book3s_32_mmu.c b/arch/powerpc/kvm/book3s_32_mmu.c
index b14af6d09347..76a64ce6a5b6 100644
--- a/arch/powerpc/kvm/book3s_32_mmu.c
+++ b/arch/powerpc/kvm/book3s_32_mmu.c
@@ -84,7 +84,8 @@ static inline bool sr_nx(u32 sr_raw)
 }
 
 static int kvmppc_mmu_book3s_32_xlate_bat(struct kvm_vcpu *vcpu, gva_t eaddr,
-					  struct kvmppc_pte *pte, bool data);
+					  struct kvmppc_pte *pte, bool data,
+					  bool iswrite);
 static int kvmppc_mmu_book3s_32_esid_to_vsid(struct kvm_vcpu *vcpu, ulong esid,
 					     u64 *vsid);
 
@@ -99,7 +100,7 @@ static u64 kvmppc_mmu_book3s_32_ea_to_vp(struct kvm_vcpu *vcpu, gva_t eaddr,
 	u64 vsid;
 	struct kvmppc_pte pte;
 
-	if (!kvmppc_mmu_book3s_32_xlate_bat(vcpu, eaddr, &pte, data))
+	if (!kvmppc_mmu_book3s_32_xlate_bat(vcpu, eaddr, &pte, data, false))
 		return pte.vpage;
 
 	kvmppc_mmu_book3s_32_esid_to_vsid(vcpu, eaddr >> SID_SHIFT, &vsid);
@@ -146,7 +147,8 @@ static u32 kvmppc_mmu_book3s_32_get_ptem(u32 sre, gva_t eaddr, bool primary)
 }
 
 static int kvmppc_mmu_book3s_32_xlate_bat(struct kvm_vcpu *vcpu, gva_t eaddr,
-					  struct kvmppc_pte *pte, bool data)
+					  struct kvmppc_pte *pte, bool data,
+					  bool iswrite)
 {
 	struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu);
 	struct kvmppc_bat *bat;
@@ -187,8 +189,7 @@ static int kvmppc_mmu_book3s_32_xlate_bat(struct kvm_vcpu *vcpu, gva_t eaddr,
 				printk(KERN_INFO "BAT is not readable!\n");
 				continue;
 			}
-			if (!pte->may_write) {
-				/* let's treat r/o BATs as not-readable for now */
+			if (iswrite && !pte->may_write) {
 				dprintk_pte("BAT is read-only!\n");
 				continue;
 			}
@@ -202,7 +203,7 @@ static int kvmppc_mmu_book3s_32_xlate_bat(struct kvm_vcpu *vcpu, gva_t eaddr,
 
 static int kvmppc_mmu_book3s_32_xlate_pte(struct kvm_vcpu *vcpu, gva_t eaddr,
 				     struct kvmppc_pte *pte, bool data,
-				     bool primary)
+				     bool iswrite, bool primary)
 {
 	u32 sre;
 	hva_t ptegp;
@@ -258,9 +259,6 @@ static int kvmppc_mmu_book3s_32_xlate_pte(struct kvm_vcpu *vcpu, gva_t eaddr,
 					break;
 			}
 
-			if ( !pte->may_read )
-				continue;
-
 			dprintk_pte("MMU: Found PTE -> %x %x - %x\n",
 				    pteg[i], pteg[i+1], pp);
 			found = 1;
@@ -282,11 +280,12 @@ static int kvmppc_mmu_book3s_32_xlate_pte(struct kvm_vcpu *vcpu, gva_t eaddr,
 			pte_r |= PTEG_FLAG_ACCESSED;
 			put_user(pte_r >> 8, addr + 2);
 		}
-		if (pte->may_write && !(pte_r & PTEG_FLAG_DIRTY)) {
-			/* XXX should only set this for stores */
+		if (iswrite && pte->may_write && !(pte_r & PTEG_FLAG_DIRTY)) {
 			pte_r |= PTEG_FLAG_DIRTY;
 			put_user(pte_r, addr + 3);
 		}
+		if (!pte->may_read || (iswrite && !pte->may_write))
+			return -EPERM;
 		return 0;
 	}
 
@@ -305,7 +304,8 @@ no_page_found:
 }
 
 static int kvmppc_mmu_book3s_32_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
-				      struct kvmppc_pte *pte, bool data)
+				      struct kvmppc_pte *pte, bool data,
+				      bool iswrite)
 {
 	int r;
 	ulong mp_ea = vcpu->arch.magic_page_ea;
@@ -327,11 +327,13 @@ static int kvmppc_mmu_book3s_32_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
 		return 0;
 	}
 
-	r = kvmppc_mmu_book3s_32_xlate_bat(vcpu, eaddr, pte, data);
+	r = kvmppc_mmu_book3s_32_xlate_bat(vcpu, eaddr, pte, data, iswrite);
 	if (r < 0)
-	       r = kvmppc_mmu_book3s_32_xlate_pte(vcpu, eaddr, pte, data, true);
+		r = kvmppc_mmu_book3s_32_xlate_pte(vcpu, eaddr, pte,
+						   data, iswrite, true);
 	if (r < 0)
-	       r = kvmppc_mmu_book3s_32_xlate_pte(vcpu, eaddr, pte, data, false);
+		r = kvmppc_mmu_book3s_32_xlate_pte(vcpu, eaddr, pte,
+						   data, iswrite, false);
 
 	return r;
 }
diff --git a/arch/powerpc/kvm/book3s_32_mmu_host.c b/arch/powerpc/kvm/book3s_32_mmu_host.c
index 00e619bf608e..673322329238 100644
--- a/arch/powerpc/kvm/book3s_32_mmu_host.c
+++ b/arch/powerpc/kvm/book3s_32_mmu_host.c
@@ -138,7 +138,8 @@ static u32 *kvmppc_mmu_get_pteg(struct kvm_vcpu *vcpu, u32 vsid, u32 eaddr,
 
 extern char etext[];
 
-int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte)
+int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte,
+			bool iswrite)
 {
 	pfn_t hpaddr;
 	u64 vpn;
@@ -152,9 +153,11 @@ int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte)
 	bool evict = false;
 	struct hpte_cache *pte;
 	int r = 0;
+	bool writable;
 
 	/* Get host physical address for gpa */
-	hpaddr = kvmppc_gfn_to_pfn(vcpu, orig_pte->raddr >> PAGE_SHIFT);
+	hpaddr = kvmppc_gfn_to_pfn(vcpu, orig_pte->raddr >> PAGE_SHIFT,
+				   iswrite, &writable);
 	if (is_error_noslot_pfn(hpaddr)) {
 		printk(KERN_INFO "Couldn't get guest page for gfn %lx!\n",
 				 orig_pte->eaddr);
@@ -204,7 +207,7 @@ next_pteg:
 		(primary ? 0 : PTE_SEC);
 	pteg1 = hpaddr | PTE_M | PTE_R | PTE_C;
 
-	if (orig_pte->may_write) {
+	if (orig_pte->may_write && writable) {
 		pteg1 |= PP_RWRW;
 		mark_page_dirty(vcpu->kvm, orig_pte->raddr >> PAGE_SHIFT);
 	} else {
@@ -259,6 +262,11 @@ out:
 	return r;
 }
 
+void kvmppc_mmu_unmap_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte)
+{
+	kvmppc_mmu_pte_vflush(vcpu, pte->vpage, 0xfffffffffULL);
+}
+
 static struct kvmppc_sid_map *create_sid_map(struct kvm_vcpu *vcpu, u64 gvsid)
 {
 	struct kvmppc_sid_map *map;
diff --git a/arch/powerpc/kvm/book3s_64_mmu.c b/arch/powerpc/kvm/book3s_64_mmu.c
index c110145522e6..83da1f868fd5 100644
--- a/arch/powerpc/kvm/book3s_64_mmu.c
+++ b/arch/powerpc/kvm/book3s_64_mmu.c
@@ -206,7 +206,8 @@ static int decode_pagesize(struct kvmppc_slb *slbe, u64 r)
 }
 
 static int kvmppc_mmu_book3s_64_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
-				struct kvmppc_pte *gpte, bool data)
+				      struct kvmppc_pte *gpte, bool data,
+				      bool iswrite)
 {
 	struct kvmppc_slb *slbe;
 	hva_t ptegp;
@@ -345,8 +346,8 @@ do_second:
 		r |= HPTE_R_R;
 		put_user(r >> 8, addr + 6);
 	}
-	if (data && gpte->may_write && !(r & HPTE_R_C)) {
-		/* Set the dirty flag -- XXX even if not writing */
+	if (iswrite && gpte->may_write && !(r & HPTE_R_C)) {
+		/* Set the dirty flag */
 		/* Use a single byte write */
 		char __user *addr = (char __user *) &pteg[i+1];
 		r |= HPTE_R_C;
@@ -355,7 +356,7 @@ do_second:
 
 	mutex_unlock(&vcpu->kvm->arch.hpt_mutex);
 
-	if (!gpte->may_read)
+	if (!gpte->may_read || (iswrite && !gpte->may_write))
 		return -EPERM;
 	return 0;
 
diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c b/arch/powerpc/kvm/book3s_64_mmu_host.c
index 6bda504ceda7..cc9fb89b8884 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_host.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_host.c
@@ -78,7 +78,8 @@ static struct kvmppc_sid_map *find_sid_vsid(struct kvm_vcpu *vcpu, u64 gvsid)
 	return NULL;
 }
 
-int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte)
+int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte,
+			bool iswrite)
 {
 	unsigned long vpn;
 	pfn_t hpaddr;
@@ -91,9 +92,11 @@ int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte)
 	struct kvmppc_sid_map *map;
 	int r = 0;
 	int hpsize = MMU_PAGE_4K;
+	bool writable;
 
 	/* Get host physical address for gpa */
-	hpaddr = kvmppc_gfn_to_pfn(vcpu, orig_pte->raddr >> PAGE_SHIFT);
+	hpaddr = kvmppc_gfn_to_pfn(vcpu, orig_pte->raddr >> PAGE_SHIFT,
+				   iswrite, &writable);
 	if (is_error_noslot_pfn(hpaddr)) {
 		printk(KERN_INFO "Couldn't get guest page for gfn %lx!\n", orig_pte->eaddr);
 		r = -EINVAL;
@@ -119,7 +122,7 @@ int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte)
 
 	vpn = hpt_vpn(orig_pte->eaddr, map->host_vsid, MMU_SEGSIZE_256M);
 
-	if (!orig_pte->may_write)
+	if (!orig_pte->may_write || !writable)
 		rflags |= HPTE_R_PP;
 	else
 		mark_page_dirty(vcpu->kvm, orig_pte->raddr >> PAGE_SHIFT);
@@ -186,6 +189,17 @@ out:
 	return r;
 }
 
+void kvmppc_mmu_unmap_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *pte)
+{
+	u64 mask = 0xfffffffffULL;
+	u64 vsid;
+
+	vcpu->arch.mmu.esid_to_vsid(vcpu, pte->eaddr >> SID_SHIFT, &vsid);
+	if (vsid & VSID_64K)
+		mask = 0xffffffff0ULL;
+	kvmppc_mmu_pte_vflush(vcpu, pte->vpage, mask);
+}
+
 static struct kvmppc_sid_map *create_sid_map(struct kvm_vcpu *vcpu, u64 gvsid)
 {
 	struct kvmppc_sid_map *map;
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c
index ccb89a048bf8..394fef820f0c 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_hv.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c
@@ -451,7 +451,7 @@ static unsigned long kvmppc_mmu_get_real_addr(unsigned long v, unsigned long r,
 }
 
 static int kvmppc_mmu_book3s_64_hv_xlate(struct kvm_vcpu *vcpu, gva_t eaddr,
-			struct kvmppc_pte *gpte, bool data)
+			struct kvmppc_pte *gpte, bool data, bool iswrite)
 {
 	struct kvm *kvm = vcpu->kvm;
 	struct kvmppc_slb *slbe;
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 677d7e33b1ff..2f84ed807184 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -401,6 +401,7 @@ int kvmppc_handle_pagefault(struct kvm_run *run, struct kvm_vcpu *vcpu,
 			    ulong eaddr, int vec)
 {
 	bool data = (vec == BOOK3S_INTERRUPT_DATA_STORAGE);
+	bool iswrite = false;
 	int r = RESUME_GUEST;
 	int relocated;
 	int page_found = 0;
@@ -411,10 +412,12 @@ int kvmppc_handle_pagefault(struct kvm_run *run, struct kvm_vcpu *vcpu,
 	u64 vsid;
 
 	relocated = data ? dr : ir;
+	if (data && (vcpu->arch.fault_dsisr & DSISR_ISSTORE))
+		iswrite = true;
 
 	/* Resolve real address if translation turned on */
 	if (relocated) {
-		page_found = vcpu->arch.mmu.xlate(vcpu, eaddr, &pte, data);
+		page_found = vcpu->arch.mmu.xlate(vcpu, eaddr, &pte, data, iswrite);
 	} else {
 		pte.may_execute = true;
 		pte.may_read = true;
@@ -475,12 +478,20 @@ int kvmppc_handle_pagefault(struct kvm_run *run, struct kvm_vcpu *vcpu,
 		kvmppc_book3s_queue_irqprio(vcpu, vec + 0x80);
 	} else if (!is_mmio &&
 		   kvmppc_visible_gfn(vcpu, pte.raddr >> PAGE_SHIFT)) {
+		if (data && !(vcpu->arch.fault_dsisr & DSISR_NOHPTE)) {
+			/*
+			 * There is already a host HPTE there, presumably
+			 * a read-only one for a page the guest thinks
+			 * is writable, so get rid of it first.
+			 */
+			kvmppc_mmu_unmap_page(vcpu, &pte);
+		}
 		/* The guest's PTE is not mapped yet. Map on the host */
-		kvmppc_mmu_map_page(vcpu, &pte);
+		kvmppc_mmu_map_page(vcpu, &pte, iswrite);
 		if (data)
 			vcpu->stat.sp_storage++;
 		else if (vcpu->arch.mmu.is_dcbz32(vcpu) &&
-			(!(vcpu->arch.hflags & BOOK3S_HFLAG_DCBZ32)))
+			 (!(vcpu->arch.hflags & BOOK3S_HFLAG_DCBZ32)))
 			kvmppc_patch_dcbz(vcpu, &pte);
 	} else {
 		/* MMIO */
@@ -732,7 +743,9 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
 
 		/* only care about PTEG not found errors, but leave NX alone */
 		if (shadow_srr1 & 0x40000000) {
+			int idx = srcu_read_lock(&vcpu->kvm->srcu);
 			r = kvmppc_handle_pagefault(run, vcpu, kvmppc_get_pc(vcpu), exit_nr);
+			srcu_read_unlock(&vcpu->kvm->srcu, idx);
 			vcpu->stat.sp_instruc++;
 		} else if (vcpu->arch.mmu.is_dcbz32(vcpu) &&
 			  (!(vcpu->arch.hflags & BOOK3S_HFLAG_DCBZ32))) {
@@ -774,9 +787,15 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
 		}
 #endif
 
-		/* The only case we need to handle is missing shadow PTEs */
-		if (fault_dsisr & DSISR_NOHPTE) {
+		/*
+		 * We need to handle missing shadow PTEs, and
+		 * protection faults due to us mapping a page read-only
+		 * when the guest thinks it is writable.
+		 */
+		if (fault_dsisr & (DSISR_NOHPTE | DSISR_PROTFAULT)) {
+			int idx = srcu_read_lock(&vcpu->kvm->srcu);
 			r = kvmppc_handle_pagefault(run, vcpu, dar, exit_nr);
+			srcu_read_unlock(&vcpu->kvm->srcu, idx);
 		} else {
 			vcpu->arch.shared->dar = dar;
 			vcpu->arch.shared->dsisr = fault_dsisr;
-- 
cgit 


From d78bca72961ae816181b386ff6b347419dfcd5cf Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 20 Sep 2013 14:52:52 +1000
Subject: KVM: PPC: Book3S PR: Use mmu_notifier_retry() in
 kvmppc_mmu_map_page()

When the MM code is invalidating a range of pages, it calls the KVM
kvm_mmu_notifier_invalidate_range_start() notifier function, which calls
kvm_unmap_hva_range(), which arranges to flush all the existing host
HPTEs for guest pages.  However, the Linux PTEs for the range being
flushed are still valid at that point.  We are not supposed to establish
any new references to pages in the range until the ...range_end()
notifier gets called.  The PPC-specific KVM code doesn't get any
explicit notification of that; instead, we are supposed to use
mmu_notifier_retry() to test whether we are or have been inside a
range flush notifier pair while we have been getting a page and
instantiating a host HPTE for the page.

This therefore adds a call to mmu_notifier_retry inside
kvmppc_mmu_map_page().  This call is inside a region locked with
kvm->mmu_lock, which is the same lock that is called by the KVM
MMU notifier functions, thus ensuring that no new notification can
proceed while we are in the locked region.  Inside this region we
also create the host HPTE and link the corresponding hpte_cache
structure into the lists used to find it later.  We cannot allocate
the hpte_cache structure inside this locked region because that can
lead to deadlock, so we allocate it outside the region and free it
if we end up not using it.

This also moves the updates of vcpu3s->hpte_cache_count inside the
regions locked with vcpu3s->mmu_lock, and does the increment in
kvmppc_mmu_hpte_cache_map() when the pte is added to the cache
rather than when it is allocated, in order that the hpte_cache_count
is accurate.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/kvm_book3s.h |  1 +
 arch/powerpc/kvm/book3s_64_mmu_host.c | 37 ++++++++++++++++++++++++++---------
 arch/powerpc/kvm/book3s_mmu_hpte.c    | 14 +++++++++----
 3 files changed, 39 insertions(+), 13 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index a07bd7e7d4a4..0ec00f4fef91 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -142,6 +142,7 @@ extern long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr,
 
 extern void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
 extern struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu);
+extern void kvmppc_mmu_hpte_cache_free(struct hpte_cache *pte);
 extern void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu);
 extern int kvmppc_mmu_hpte_init(struct kvm_vcpu *vcpu);
 extern void kvmppc_mmu_invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte);
diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c b/arch/powerpc/kvm/book3s_64_mmu_host.c
index cc9fb89b8884..307e6e838e0d 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_host.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_host.c
@@ -93,6 +93,13 @@ int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte,
 	int r = 0;
 	int hpsize = MMU_PAGE_4K;
 	bool writable;
+	unsigned long mmu_seq;
+	struct kvm *kvm = vcpu->kvm;
+	struct hpte_cache *cpte;
+
+	/* used to check for invalidations in progress */
+	mmu_seq = kvm->mmu_notifier_seq;
+	smp_rmb();
 
 	/* Get host physical address for gpa */
 	hpaddr = kvmppc_gfn_to_pfn(vcpu, orig_pte->raddr >> PAGE_SHIFT,
@@ -143,6 +150,14 @@ int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte,
 
 	hash = hpt_hash(vpn, mmu_psize_defs[hpsize].shift, MMU_SEGSIZE_256M);
 
+	cpte = kvmppc_mmu_hpte_cache_next(vcpu);
+
+	spin_lock(&kvm->mmu_lock);
+	if (!cpte || mmu_notifier_retry(kvm, mmu_seq)) {
+		r = -EAGAIN;
+		goto out_unlock;
+	}
+
 map_again:
 	hpteg = ((hash & htab_hash_mask) * HPTES_PER_GROUP);
 
@@ -150,7 +165,7 @@ map_again:
 	if (attempt > 1)
 		if (ppc_md.hpte_remove(hpteg) < 0) {
 			r = -1;
-			goto out;
+			goto out_unlock;
 		}
 
 	ret = ppc_md.hpte_insert(hpteg, vpn, hpaddr, rflags, vflags,
@@ -163,8 +178,6 @@ map_again:
 		attempt++;
 		goto map_again;
 	} else {
-		struct hpte_cache *pte = kvmppc_mmu_hpte_cache_next(vcpu);
-
 		trace_kvm_book3s_64_mmu_map(rflags, hpteg,
 					    vpn, hpaddr, orig_pte);
 
@@ -175,15 +188,21 @@ map_again:
 			hpteg = ((hash & htab_hash_mask) * HPTES_PER_GROUP);
 		}
 
-		pte->slot = hpteg + (ret & 7);
-		pte->host_vpn = vpn;
-		pte->pte = *orig_pte;
-		pte->pfn = hpaddr >> PAGE_SHIFT;
-		pte->pagesize = hpsize;
+		cpte->slot = hpteg + (ret & 7);
+		cpte->host_vpn = vpn;
+		cpte->pte = *orig_pte;
+		cpte->pfn = hpaddr >> PAGE_SHIFT;
+		cpte->pagesize = hpsize;
 
-		kvmppc_mmu_hpte_cache_map(vcpu, pte);
+		kvmppc_mmu_hpte_cache_map(vcpu, cpte);
+		cpte = NULL;
 	}
+
+out_unlock:
+	spin_unlock(&kvm->mmu_lock);
 	kvm_release_pfn_clean(hpaddr >> PAGE_SHIFT);
+	if (cpte)
+		kvmppc_mmu_hpte_cache_free(cpte);
 
 out:
 	return r;
diff --git a/arch/powerpc/kvm/book3s_mmu_hpte.c b/arch/powerpc/kvm/book3s_mmu_hpte.c
index d2d280b16778..6b79bfc44ba5 100644
--- a/arch/powerpc/kvm/book3s_mmu_hpte.c
+++ b/arch/powerpc/kvm/book3s_mmu_hpte.c
@@ -98,6 +98,8 @@ void kvmppc_mmu_hpte_cache_map(struct kvm_vcpu *vcpu, struct hpte_cache *pte)
 			   &vcpu3s->hpte_hash_vpte_64k[index]);
 #endif
 
+	vcpu3s->hpte_cache_count++;
+
 	spin_unlock(&vcpu3s->mmu_lock);
 }
 
@@ -131,10 +133,10 @@ static void invalidate_pte(struct kvm_vcpu *vcpu, struct hpte_cache *pte)
 #ifdef CONFIG_PPC_BOOK3S_64
 	hlist_del_init_rcu(&pte->list_vpte_64k);
 #endif
+	vcpu3s->hpte_cache_count--;
 
 	spin_unlock(&vcpu3s->mmu_lock);
 
-	vcpu3s->hpte_cache_count--;
 	call_rcu(&pte->rcu_head, free_pte_rcu);
 }
 
@@ -331,15 +333,19 @@ struct hpte_cache *kvmppc_mmu_hpte_cache_next(struct kvm_vcpu *vcpu)
 	struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu);
 	struct hpte_cache *pte;
 
-	pte = kmem_cache_zalloc(hpte_cache, GFP_KERNEL);
-	vcpu3s->hpte_cache_count++;
-
 	if (vcpu3s->hpte_cache_count == HPTEG_CACHE_NUM)
 		kvmppc_mmu_pte_flush_all(vcpu);
 
+	pte = kmem_cache_zalloc(hpte_cache, GFP_KERNEL);
+
 	return pte;
 }
 
+void kvmppc_mmu_hpte_cache_free(struct hpte_cache *pte)
+{
+	kmem_cache_free(hpte_cache, pte);
+}
+
 void kvmppc_mmu_hpte_destroy(struct kvm_vcpu *vcpu)
 {
 	kvmppc_mmu_pte_flush(vcpu, 0, 0);
-- 
cgit 


From adc0bafe00f4c7e5f052c9f29e75a072e03a19fc Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 20 Sep 2013 14:52:53 +1000
Subject: KVM: PPC: Book3S PR: Mark pages accessed, and dirty if being written

The mark_page_dirty() function, despite what its name might suggest,
doesn't actually mark the page as dirty as far as the MM subsystem is
concerned.  It merely sets a bit in KVM's map of dirty pages, if
userspace has requested dirty tracking for the relevant memslot.
To tell the MM subsystem that the page is dirty, we have to call
kvm_set_pfn_dirty() (or an equivalent such as SetPageDirty()).

This adds a call to kvm_set_pfn_dirty(), and while we are here, also
adds a call to kvm_set_pfn_accessed() to tell the MM subsystem that
the page has been accessed.  Since we are now using the pfn in
several places, this adds a 'pfn' variable to store it and changes
the places that used hpaddr >> PAGE_SHIFT to use pfn instead, which
is the same thing.

This also changes a use of HPTE_R_PP to PP_RXRX.  Both are 3, but
PP_RXRX is more informative as being the read-only page permission
bit setting.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/book3s_64_mmu_host.c | 26 +++++++++++++++-----------
 1 file changed, 15 insertions(+), 11 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c b/arch/powerpc/kvm/book3s_64_mmu_host.c
index 307e6e838e0d..e2ab8a747fbe 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_host.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_host.c
@@ -96,20 +96,21 @@ int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte,
 	unsigned long mmu_seq;
 	struct kvm *kvm = vcpu->kvm;
 	struct hpte_cache *cpte;
+	unsigned long gfn = orig_pte->raddr >> PAGE_SHIFT;
+	unsigned long pfn;
 
 	/* used to check for invalidations in progress */
 	mmu_seq = kvm->mmu_notifier_seq;
 	smp_rmb();
 
 	/* Get host physical address for gpa */
-	hpaddr = kvmppc_gfn_to_pfn(vcpu, orig_pte->raddr >> PAGE_SHIFT,
-				   iswrite, &writable);
-	if (is_error_noslot_pfn(hpaddr)) {
-		printk(KERN_INFO "Couldn't get guest page for gfn %lx!\n", orig_pte->eaddr);
+	pfn = kvmppc_gfn_to_pfn(vcpu, gfn, iswrite, &writable);
+	if (is_error_noslot_pfn(pfn)) {
+		printk(KERN_INFO "Couldn't get guest page for gfn %lx!\n", gfn);
 		r = -EINVAL;
 		goto out;
 	}
-	hpaddr <<= PAGE_SHIFT;
+	hpaddr = pfn << PAGE_SHIFT;
 
 	/* and write the mapping ea -> hpa into the pt */
 	vcpu->arch.mmu.esid_to_vsid(vcpu, orig_pte->eaddr >> SID_SHIFT, &vsid);
@@ -129,15 +130,18 @@ int kvmppc_mmu_map_page(struct kvm_vcpu *vcpu, struct kvmppc_pte *orig_pte,
 
 	vpn = hpt_vpn(orig_pte->eaddr, map->host_vsid, MMU_SEGSIZE_256M);
 
+	kvm_set_pfn_accessed(pfn);
 	if (!orig_pte->may_write || !writable)
-		rflags |= HPTE_R_PP;
-	else
-		mark_page_dirty(vcpu->kvm, orig_pte->raddr >> PAGE_SHIFT);
+		rflags |= PP_RXRX;
+	else {
+		mark_page_dirty(vcpu->kvm, gfn);
+		kvm_set_pfn_dirty(pfn);
+	}
 
 	if (!orig_pte->may_execute)
 		rflags |= HPTE_R_N;
 	else
-		kvmppc_mmu_flush_icache(hpaddr >> PAGE_SHIFT);
+		kvmppc_mmu_flush_icache(pfn);
 
 	/*
 	 * Use 64K pages if possible; otherwise, on 64K page kernels,
@@ -191,7 +195,7 @@ map_again:
 		cpte->slot = hpteg + (ret & 7);
 		cpte->host_vpn = vpn;
 		cpte->pte = *orig_pte;
-		cpte->pfn = hpaddr >> PAGE_SHIFT;
+		cpte->pfn = pfn;
 		cpte->pagesize = hpsize;
 
 		kvmppc_mmu_hpte_cache_map(vcpu, cpte);
@@ -200,7 +204,7 @@ map_again:
 
 out_unlock:
 	spin_unlock(&kvm->mmu_lock);
-	kvm_release_pfn_clean(hpaddr >> PAGE_SHIFT);
+	kvm_release_pfn_clean(pfn);
 	if (cpte)
 		kvmppc_mmu_hpte_cache_free(cpte);
 
-- 
cgit 


From 491d6ecc17171518565358c2cfe33b59722d234c Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 20 Sep 2013 14:52:54 +1000
Subject: KVM: PPC: Book3S PR: Reduce number of shadow PTEs invalidated by MMU
 notifiers

Currently, whenever any of the MMU notifier callbacks get called, we
invalidate all the shadow PTEs.  This is inefficient because it means
that we typically then get a lot of DSIs and ISIs in the guest to fault
the shadow PTEs back in.  We do this even if the address range being
notified doesn't correspond to guest memory.

This commit adds code to scan the memslot array to find out what range(s)
of guest physical addresses corresponds to the host virtual address range
being affected.  For each such range we flush only the shadow PTEs
for the range, on all cpus.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/book3s_pr.c | 40 ++++++++++++++++++++++++++++++++--------
 1 file changed, 32 insertions(+), 8 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 2f84ed807184..6075dbd0b364 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -150,24 +150,48 @@ int kvmppc_core_check_requests(struct kvm_vcpu *vcpu)
 }
 
 /************* MMU Notifiers *************/
+static void do_kvm_unmap_hva(struct kvm *kvm, unsigned long start,
+			     unsigned long end)
+{
+	long i;
+	struct kvm_vcpu *vcpu;
+	struct kvm_memslots *slots;
+	struct kvm_memory_slot *memslot;
+
+	slots = kvm_memslots(kvm);
+	kvm_for_each_memslot(memslot, slots) {
+		unsigned long hva_start, hva_end;
+		gfn_t gfn, gfn_end;
+
+		hva_start = max(start, memslot->userspace_addr);
+		hva_end = min(end, memslot->userspace_addr +
+					(memslot->npages << PAGE_SHIFT));
+		if (hva_start >= hva_end)
+			continue;
+		/*
+		 * {gfn(page) | page intersects with [hva_start, hva_end)} =
+		 * {gfn, gfn+1, ..., gfn_end-1}.
+		 */
+		gfn = hva_to_gfn_memslot(hva_start, memslot);
+		gfn_end = hva_to_gfn_memslot(hva_end + PAGE_SIZE - 1, memslot);
+		kvm_for_each_vcpu(i, vcpu, kvm)
+			kvmppc_mmu_pte_pflush(vcpu, gfn << PAGE_SHIFT,
+					      gfn_end << PAGE_SHIFT);
+	}
+}
 
 int kvm_unmap_hva(struct kvm *kvm, unsigned long hva)
 {
 	trace_kvm_unmap_hva(hva);
 
-	/*
-	 * Flush all shadow tlb entries everywhere. This is slow, but
-	 * we are 100% sure that we catch the to be unmapped page
-	 */
-	kvm_flush_remote_tlbs(kvm);
+	do_kvm_unmap_hva(kvm, hva, hva + PAGE_SIZE);
 
 	return 0;
 }
 
 int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
 {
-	/* kvm_unmap_hva flushes everything anyways */
-	kvm_unmap_hva(kvm, start);
+	do_kvm_unmap_hva(kvm, start, end);
 
 	return 0;
 }
@@ -187,7 +211,7 @@ int kvm_test_age_hva(struct kvm *kvm, unsigned long hva)
 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte)
 {
 	/* The page will get remapped properly on its next fault */
-	kvm_unmap_hva(kvm, hva);
+	do_kvm_unmap_hva(kvm, hva, hva + PAGE_SIZE);
 }
 
 /*****************************************/
-- 
cgit 


From f1378b1c0bdce349e21f271dec0612a6cfac5d14 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 27 Sep 2013 15:33:43 +0530
Subject: kvm: powerpc: book3s hv: Fix vcore leak

add kvmppc_free_vcores() to free the kvmppc_vcore structures
that we allocate for a guest, which are currently being leaked.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/book3s_hv.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index de9520f9241f..b4d5b3b06769 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -2050,10 +2050,20 @@ int kvmppc_core_init_vm(struct kvm *kvm)
 	return 0;
 }
 
+static void kvmppc_free_vcores(struct kvm *kvm)
+{
+	long int i;
+
+	for (i = 0; i < KVM_MAX_VCORES; ++i)
+		kfree(kvm->arch.vcores[i]);
+	kvm->arch.online_vcores = 0;
+}
+
 void kvmppc_core_destroy_vm(struct kvm *kvm)
 {
 	uninhibit_secondary_onlining();
 
+	kvmppc_free_vcores(kvm);
 	if (kvm->arch.rma) {
 		kvm_release_rma(kvm->arch.rma);
 		kvm->arch.rma = NULL;
-- 
cgit 


From 44a3add86311bb9d060d795bcdcdc9b8c7a35bd0 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Fri, 4 Oct 2013 21:45:04 +1000
Subject: KVM: PPC: Book3S HV: Better handling of exceptions that happen in
 real mode

When an interrupt or exception happens in the guest that comes to the
host, the CPU goes to hypervisor real mode (MMU off) to handle the
exception but doesn't change the MMU context.  After saving a few
registers, we then clear the "in guest" flag.  If, for any reason,
we get an exception in the real-mode code, that then gets handled
by the normal kernel exception handlers, which turn the MMU on.  This
is disastrous if the MMU is still set to the guest context, since we
end up executing instructions from random places in the guest kernel
with hypervisor privilege.

In order to catch this situation, we define a new value for the "in guest"
flag, KVM_GUEST_MODE_HOST_HV, to indicate that we are in hypervisor real
mode with guest MMU context.  If the "in guest" flag is set to this value,
we branch off to an emergency handler.  For the moment, this just does
a branch to self to stop the CPU from doing anything further.

While we're here, we define another new flag value to indicate that we
are in a HV guest, as distinct from a PR guest.  This will be useful
when we have a kernel that can support both PR and HV guests concurrently.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/kvm_asm.h      |  2 ++
 arch/powerpc/kvm/book3s_hv_rmhandlers.S | 31 +++++++++++++++++++++++++------
 2 files changed, 27 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_asm.h b/arch/powerpc/include/asm/kvm_asm.h
index e2d4d467ee93..1bd92fd43cfb 100644
--- a/arch/powerpc/include/asm/kvm_asm.h
+++ b/arch/powerpc/include/asm/kvm_asm.h
@@ -138,6 +138,8 @@
 #define KVM_GUEST_MODE_NONE	0
 #define KVM_GUEST_MODE_GUEST	1
 #define KVM_GUEST_MODE_SKIP	2
+#define KVM_GUEST_MODE_GUEST_HV	3
+#define KVM_GUEST_MODE_HOST_HV	4
 
 #define KVM_INST_FETCH_FAILED	-1
 
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 6e3370f42a63..84105eb18a0e 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -387,6 +387,9 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
 	mtspr	SPRN_DAR, r5
 	mtspr	SPRN_DSISR, r6
 
+	li	r6, KVM_GUEST_MODE_HOST_HV
+	stb	r6, HSTATE_IN_GUEST(r13)
+
 BEGIN_FTR_SECTION
 	/* Restore AMR and UAMOR, set AMOR to all 1s */
 	ld	r5,VCPU_AMR(r4)
@@ -690,7 +693,7 @@ fast_guest_return:
 	mtspr	SPRN_HSRR1,r11
 
 	/* Activate guest mode, so faults get handled by KVM */
-	li	r9, KVM_GUEST_MODE_GUEST
+	li	r9, KVM_GUEST_MODE_GUEST_HV
 	stb	r9, HSTATE_IN_GUEST(r13)
 
 	/* Enter guest */
@@ -750,6 +753,14 @@ kvmppc_interrupt:
 	 */
 	/* abuse host_r2 as third scratch area; we get r2 from PACATOC(r13) */
 	std	r9, HSTATE_HOST_R2(r13)
+
+	lbz	r9, HSTATE_IN_GUEST(r13)
+	cmpwi	r9, KVM_GUEST_MODE_HOST_HV
+	beq	kvmppc_bad_host_intr
+	/* We're now back in the host but in guest MMU context */
+	li	r9, KVM_GUEST_MODE_HOST_HV
+	stb	r9, HSTATE_IN_GUEST(r13)
+
 	ld	r9, HSTATE_KVM_VCPU(r13)
 
 	/* Save registers */
@@ -801,10 +812,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
 	std	r3, VCPU_GPR(R13)(r9)
 	std	r4, VCPU_LR(r9)
 
-	/* Unset guest mode */
-	li	r0, KVM_GUEST_MODE_NONE
-	stb	r0, HSTATE_IN_GUEST(r13)
-
 	stw	r12,VCPU_TRAP(r9)
 
 	/* Save HEIR (HV emulation assist reg) in last_inst
@@ -1198,6 +1205,10 @@ BEGIN_FTR_SECTION
 	mtspr	SPRN_AMR,r6
 END_FTR_SECTION_IFSET(CPU_FTR_ARCH_206)
 
+	/* Unset guest mode */
+	li	r0, KVM_GUEST_MODE_NONE
+	stb	r0, HSTATE_IN_GUEST(r13)
+
 	/* Switch DSCR back to host value */
 BEGIN_FTR_SECTION
 	mfspr	r8, SPRN_DSCR
@@ -1400,7 +1411,7 @@ fast_interrupt_c_return:
 	stw	r8, VCPU_LAST_INST(r9)
 
 	/* Unset guest mode. */
-	li	r0, KVM_GUEST_MODE_NONE
+	li	r0, KVM_GUEST_MODE_HOST_HV
 	stb	r0, HSTATE_IN_GUEST(r13)
 	b	guest_exit_cont
 
@@ -1949,3 +1960,11 @@ END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
 	lwz	r7,VCPU_VRSAVE(r4)
 	mtspr	SPRN_VRSAVE,r7
 	blr
+
+/*
+ * We come here if we get any exception or interrupt while we are
+ * executing host real mode code while in guest MMU context.
+ * For now just spin, but we should do something better.
+ */
+kvmppc_bad_host_intr:
+	b	.
-- 
cgit 


From c199efa295fc99c029bcbd88ed4ded3334493e95 Mon Sep 17 00:00:00 2001
From: Bharat Bhushan <r65777@freescale.com>
Date: Thu, 19 Sep 2013 11:32:41 +0530
Subject: powerpc: book3e: _PAGE_LENDIAN must be _PAGE_ENDIAN

For booke3e _PAGE_ENDIAN is not defined. Infact what is defined
is "_PAGE_LENDIAN" which is wrong and that should be _PAGE_ENDIAN.
There are no compilation errors as
arch/powerpc/include/asm/pte-common.h defines _PAGE_ENDIAN to 0
as it is not defined anywhere.

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/pte-book3e.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/pte-book3e.h b/arch/powerpc/include/asm/pte-book3e.h
index 0156702ba24e..576ad88104cb 100644
--- a/arch/powerpc/include/asm/pte-book3e.h
+++ b/arch/powerpc/include/asm/pte-book3e.h
@@ -40,7 +40,7 @@
 #define _PAGE_U1	0x010000
 #define _PAGE_U0	0x020000
 #define _PAGE_ACCESSED	0x040000
-#define _PAGE_LENDIAN	0x080000
+#define _PAGE_ENDIAN	0x080000
 #define _PAGE_GUARDED	0x100000
 #define _PAGE_COHERENT	0x200000 /* M: enforce memory coherence */
 #define _PAGE_NO_CACHE	0x400000 /* I: cache inhibit */
-- 
cgit 


From fd75cb51f261d77eadd83bcb88f2016f53f4af4a Mon Sep 17 00:00:00 2001
From: Bharat Bhushan <r65777@freescale.com>
Date: Thu, 19 Sep 2013 11:32:42 +0530
Subject: kvm: powerpc: allow guest control "E" attribute in mas2

"E" bit in MAS2 bit indicates whether the page is accessed
in Little-Endian or Big-Endian byte order.
There is no reason to stop guest setting  "E", so allow him."

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/e500.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kvm/e500.h b/arch/powerpc/kvm/e500.h
index c2e5e98453a6..277cb1851afc 100644
--- a/arch/powerpc/kvm/e500.h
+++ b/arch/powerpc/kvm/e500.h
@@ -117,7 +117,7 @@ static inline struct kvmppc_vcpu_e500 *to_e500(struct kvm_vcpu *vcpu)
 #define E500_TLB_USER_PERM_MASK (MAS3_UX|MAS3_UR|MAS3_UW)
 #define E500_TLB_SUPER_PERM_MASK (MAS3_SX|MAS3_SR|MAS3_SW)
 #define MAS2_ATTRIB_MASK \
-	  (MAS2_X0 | MAS2_X1)
+	  (MAS2_X0 | MAS2_X1 | MAS2_E)
 #define MAS3_ATTRIB_MASK \
 	  (MAS3_U0 | MAS3_U1 | MAS3_U2 | MAS3_U3 \
 	   | E500_TLB_USER_PERM_MASK | E500_TLB_SUPER_PERM_MASK)
-- 
cgit 


From ca8ccbd41dcca5ef092d0d8bb972ac9307925cfe Mon Sep 17 00:00:00 2001
From: Bharat Bhushan <r65777@freescale.com>
Date: Thu, 19 Sep 2013 11:32:43 +0530
Subject: kvm: powerpc: allow guest control "G" attribute in mas2

"G" bit in MAS2 indicates whether the page is Guarded.
There is no reason to stop guest setting  "G", so allow him.

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/e500.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kvm/e500.h b/arch/powerpc/kvm/e500.h
index 277cb1851afc..4fd9650eb018 100644
--- a/arch/powerpc/kvm/e500.h
+++ b/arch/powerpc/kvm/e500.h
@@ -117,7 +117,7 @@ static inline struct kvmppc_vcpu_e500 *to_e500(struct kvm_vcpu *vcpu)
 #define E500_TLB_USER_PERM_MASK (MAS3_UX|MAS3_UR|MAS3_UW)
 #define E500_TLB_SUPER_PERM_MASK (MAS3_SX|MAS3_SR|MAS3_SW)
 #define MAS2_ATTRIB_MASK \
-	  (MAS2_X0 | MAS2_X1 | MAS2_E)
+	  (MAS2_X0 | MAS2_X1 | MAS2_E | MAS2_G)
 #define MAS3_ATTRIB_MASK \
 	  (MAS3_U0 | MAS3_U1 | MAS3_U2 | MAS3_U3 \
 	   | E500_TLB_USER_PERM_MASK | E500_TLB_SUPER_PERM_MASK)
-- 
cgit 


From 84e4d632b5455082b458844b8b8cf48406e001ce Mon Sep 17 00:00:00 2001
From: Bharat Bhushan <r65777@freescale.com>
Date: Wed, 7 Aug 2013 15:33:45 +0530
Subject: kvm: powerpc: e500: mark page accessed when mapping a guest page

Mark the guest page as accessed so that there is likely
less chances of this page getting swap-out.

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Acked-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/e500_mmu_host.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/powerpc/kvm/e500_mmu_host.c b/arch/powerpc/kvm/e500_mmu_host.c
index 1c6a9d729df4..8f0d532522db 100644
--- a/arch/powerpc/kvm/e500_mmu_host.c
+++ b/arch/powerpc/kvm/e500_mmu_host.c
@@ -253,6 +253,9 @@ static inline void kvmppc_e500_ref_setup(struct tlbe_ref *ref,
 	ref->pfn = pfn;
 	ref->flags |= E500_TLB_VALID;
 
+	/* Mark the page accessed */
+	kvm_set_pfn_accessed(pfn);
+
 	if (tlbe_is_writable(gtlbe))
 		kvm_set_pfn_dirty(pfn);
 }
-- 
cgit 


From 6b3e3b310a884958df030760e725d32a79c0c8b4 Mon Sep 17 00:00:00 2001
From: Bharat Bhushan <r65777@freescale.com>
Date: Wed, 26 Jun 2013 11:12:21 +0530
Subject: powerpc: remove unnecessary line continuations

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kernel/process.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 6f428da53e20..8eb6e39b7343 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -327,7 +327,7 @@ static void set_debug_reg_defaults(struct thread_struct *thread)
 	/*
 	 * Force User/Supervisor bits to b11 (user-only MSR[PR]=1)
 	 */
-	thread->dbcr1 = DBCR1_IAC1US | DBCR1_IAC2US |	\
+	thread->dbcr1 = DBCR1_IAC1US | DBCR1_IAC2US |
 			DBCR1_IAC3US | DBCR1_IAC4US;
 	/*
 	 * Force Data Address Compare User/Supervisor bits to be User-only
-- 
cgit 


From 95791988fec645d196e746fcc0e329e19f7b1347 Mon Sep 17 00:00:00 2001
From: Bharat Bhushan <r65777@freescale.com>
Date: Wed, 26 Jun 2013 11:12:22 +0530
Subject: powerpc: move debug registers in a structure

This way we can use same data type struct with KVM and
also help in using other debug related function.

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/processor.h |  38 +++++----
 arch/powerpc/include/asm/reg_booke.h |   8 +-
 arch/powerpc/kernel/asm-offsets.c    |   2 +-
 arch/powerpc/kernel/process.c        |  42 +++++-----
 arch/powerpc/kernel/ptrace.c         | 154 +++++++++++++++++------------------
 arch/powerpc/kernel/ptrace32.c       |   2 +-
 arch/powerpc/kernel/signal_32.c      |   6 +-
 arch/powerpc/kernel/traps.c          |  35 ++++----
 8 files changed, 147 insertions(+), 140 deletions(-)

diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h
index e378cccfca55..b43844442a6c 100644
--- a/arch/powerpc/include/asm/processor.h
+++ b/arch/powerpc/include/asm/processor.h
@@ -147,22 +147,7 @@ typedef struct {
 #define TS_FPR(i) fpr[i][TS_FPROFFSET]
 #define TS_TRANS_FPR(i) transact_fpr[i][TS_FPROFFSET]
 
-struct thread_struct {
-	unsigned long	ksp;		/* Kernel stack pointer */
-	unsigned long	ksp_limit;	/* if ksp <= ksp_limit stack overflow */
-
-#ifdef CONFIG_PPC64
-	unsigned long	ksp_vsid;
-#endif
-	struct pt_regs	*regs;		/* Pointer to saved register state */
-	mm_segment_t	fs;		/* for get_fs() validation */
-#ifdef CONFIG_BOOKE
-	/* BookE base exception scratch space; align on cacheline */
-	unsigned long	normsave[8] ____cacheline_aligned;
-#endif
-#ifdef CONFIG_PPC32
-	void		*pgdir;		/* root of page-table tree */
-#endif
+struct debug_reg {
 #ifdef CONFIG_PPC_ADV_DEBUG_REGS
 	/*
 	 * The following help to manage the use of Debug Control Registers
@@ -199,6 +184,27 @@ struct thread_struct {
 	unsigned long	dvc2;
 #endif
 #endif
+};
+
+struct thread_struct {
+	unsigned long	ksp;		/* Kernel stack pointer */
+	unsigned long	ksp_limit;	/* if ksp <= ksp_limit stack overflow */
+
+#ifdef CONFIG_PPC64
+	unsigned long	ksp_vsid;
+#endif
+	struct pt_regs	*regs;		/* Pointer to saved register state */
+	mm_segment_t	fs;		/* for get_fs() validation */
+#ifdef CONFIG_BOOKE
+	/* BookE base exception scratch space; align on cacheline */
+	unsigned long	normsave[8] ____cacheline_aligned;
+#endif
+#ifdef CONFIG_PPC32
+	void		*pgdir;		/* root of page-table tree */
+#endif
+	/* Debug Registers */
+	struct debug_reg debug;
+
 	/* FP and VSX 0-31 register set */
 	double		fpr[32][TS_FPRWIDTH] __attribute__((aligned(16)));
 	struct {
diff --git a/arch/powerpc/include/asm/reg_booke.h b/arch/powerpc/include/asm/reg_booke.h
index ed8f836da094..2e31aacd8acc 100644
--- a/arch/powerpc/include/asm/reg_booke.h
+++ b/arch/powerpc/include/asm/reg_booke.h
@@ -381,7 +381,7 @@
 #define DBCR0_IA34T	0x00004000	/* Instr Addr 3-4 range Toggle */
 #define DBCR0_FT	0x00000001	/* Freeze Timers on debug event */
 
-#define dbcr_iac_range(task)	((task)->thread.dbcr0)
+#define dbcr_iac_range(task)	((task)->thread.debug.dbcr0)
 #define DBCR_IAC12I	DBCR0_IA12			/* Range Inclusive */
 #define DBCR_IAC12X	(DBCR0_IA12 | DBCR0_IA12X)	/* Range Exclusive */
 #define DBCR_IAC12MODE	(DBCR0_IA12 | DBCR0_IA12X)	/* IAC 1-2 Mode Bits */
@@ -395,7 +395,7 @@
 #define DBCR1_DAC1W	0x20000000	/* DAC1 Write Debug Event */
 #define DBCR1_DAC2W	0x10000000	/* DAC2 Write Debug Event */
 
-#define dbcr_dac(task)	((task)->thread.dbcr1)
+#define dbcr_dac(task)	((task)->thread.debug.dbcr1)
 #define DBCR_DAC1R	DBCR1_DAC1R
 #define DBCR_DAC1W	DBCR1_DAC1W
 #define DBCR_DAC2R	DBCR1_DAC2R
@@ -441,7 +441,7 @@
 #define DBCR0_CRET	0x00000020	/* Critical Return Debug Event */
 #define DBCR0_FT	0x00000001	/* Freeze Timers on debug event */
 
-#define dbcr_dac(task)	((task)->thread.dbcr0)
+#define dbcr_dac(task)	((task)->thread.debug.dbcr0)
 #define DBCR_DAC1R	DBCR0_DAC1R
 #define DBCR_DAC1W	DBCR0_DAC1W
 #define DBCR_DAC2R	DBCR0_DAC2R
@@ -475,7 +475,7 @@
 #define DBCR1_IAC34MX	0x000000C0	/* Instr Addr 3-4 range eXclusive */
 #define DBCR1_IAC34AT	0x00000001	/* Instr Addr 3-4 range Toggle */
 
-#define dbcr_iac_range(task)	((task)->thread.dbcr1)
+#define dbcr_iac_range(task)	((task)->thread.debug.dbcr1)
 #define DBCR_IAC12I	DBCR1_IAC12M	/* Range Inclusive */
 #define DBCR_IAC12X	DBCR1_IAC12MX	/* Range Exclusive */
 #define DBCR_IAC12MODE	DBCR1_IAC12MX	/* IAC 1-2 Mode Bits */
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index fda7f4020a33..95ba8095fc4a 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -113,7 +113,7 @@ int main(void)
 #endif /* CONFIG_SPE */
 #endif /* CONFIG_PPC64 */
 #if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
-	DEFINE(THREAD_DBCR0, offsetof(struct thread_struct, dbcr0));
+	DEFINE(THREAD_DBCR0, offsetof(struct thread_struct, debug.dbcr0));
 #endif
 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
 	DEFINE(THREAD_KVM_SVCPU, offsetof(struct thread_struct, kvm_shadow_vcpu));
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 8eb6e39b7343..a2b9231cfd48 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -314,28 +314,28 @@ static DEFINE_PER_CPU(struct arch_hw_breakpoint, current_brk);
  */
 static void set_debug_reg_defaults(struct thread_struct *thread)
 {
-	thread->iac1 = thread->iac2 = 0;
+	thread->debug.iac1 = thread->debug.iac2 = 0;
 #if CONFIG_PPC_ADV_DEBUG_IACS > 2
-	thread->iac3 = thread->iac4 = 0;
+	thread->debug.iac3 = thread->debug.iac4 = 0;
 #endif
-	thread->dac1 = thread->dac2 = 0;
+	thread->debug.dac1 = thread->debug.dac2 = 0;
 #if CONFIG_PPC_ADV_DEBUG_DVCS > 0
-	thread->dvc1 = thread->dvc2 = 0;
+	thread->debug.dvc1 = thread->debug.dvc2 = 0;
 #endif
-	thread->dbcr0 = 0;
+	thread->debug.dbcr0 = 0;
 #ifdef CONFIG_BOOKE
 	/*
 	 * Force User/Supervisor bits to b11 (user-only MSR[PR]=1)
 	 */
-	thread->dbcr1 = DBCR1_IAC1US | DBCR1_IAC2US |
+	thread->debug.dbcr1 = DBCR1_IAC1US | DBCR1_IAC2US |
 			DBCR1_IAC3US | DBCR1_IAC4US;
 	/*
 	 * Force Data Address Compare User/Supervisor bits to be User-only
 	 * (0b11 MSR[PR]=1) and set all other bits in DBCR2 register to be 0.
 	 */
-	thread->dbcr2 = DBCR2_DAC1US | DBCR2_DAC2US;
+	thread->debug.dbcr2 = DBCR2_DAC1US | DBCR2_DAC2US;
 #else
-	thread->dbcr1 = 0;
+	thread->debug.dbcr1 = 0;
 #endif
 }
 
@@ -348,22 +348,22 @@ static void prime_debug_regs(struct thread_struct *thread)
 	 */
 	mtmsr(mfmsr() & ~MSR_DE);
 
-	mtspr(SPRN_IAC1, thread->iac1);
-	mtspr(SPRN_IAC2, thread->iac2);
+	mtspr(SPRN_IAC1, thread->debug.iac1);
+	mtspr(SPRN_IAC2, thread->debug.iac2);
 #if CONFIG_PPC_ADV_DEBUG_IACS > 2
-	mtspr(SPRN_IAC3, thread->iac3);
-	mtspr(SPRN_IAC4, thread->iac4);
+	mtspr(SPRN_IAC3, thread->debug.iac3);
+	mtspr(SPRN_IAC4, thread->debug.iac4);
 #endif
-	mtspr(SPRN_DAC1, thread->dac1);
-	mtspr(SPRN_DAC2, thread->dac2);
+	mtspr(SPRN_DAC1, thread->debug.dac1);
+	mtspr(SPRN_DAC2, thread->debug.dac2);
 #if CONFIG_PPC_ADV_DEBUG_DVCS > 0
-	mtspr(SPRN_DVC1, thread->dvc1);
-	mtspr(SPRN_DVC2, thread->dvc2);
+	mtspr(SPRN_DVC1, thread->debug.dvc1);
+	mtspr(SPRN_DVC2, thread->debug.dvc2);
 #endif
-	mtspr(SPRN_DBCR0, thread->dbcr0);
-	mtspr(SPRN_DBCR1, thread->dbcr1);
+	mtspr(SPRN_DBCR0, thread->debug.dbcr0);
+	mtspr(SPRN_DBCR1, thread->debug.dbcr1);
 #ifdef CONFIG_BOOKE
-	mtspr(SPRN_DBCR2, thread->dbcr2);
+	mtspr(SPRN_DBCR2, thread->debug.dbcr2);
 #endif
 }
 /*
@@ -373,8 +373,8 @@ static void prime_debug_regs(struct thread_struct *thread)
  */
 static void switch_booke_debug_regs(struct thread_struct *new_thread)
 {
-	if ((current->thread.dbcr0 & DBCR0_IDM)
-		|| (new_thread->dbcr0 & DBCR0_IDM))
+	if ((current->thread.debug.dbcr0 & DBCR0_IDM)
+		|| (new_thread->debug.dbcr0 & DBCR0_IDM))
 			prime_debug_regs(new_thread);
 }
 #else	/* !CONFIG_PPC_ADV_DEBUG_REGS */
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 9a0d24c390a3..ddaf1780879c 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -854,8 +854,8 @@ void user_enable_single_step(struct task_struct *task)
 
 	if (regs != NULL) {
 #ifdef CONFIG_PPC_ADV_DEBUG_REGS
-		task->thread.dbcr0 &= ~DBCR0_BT;
-		task->thread.dbcr0 |= DBCR0_IDM | DBCR0_IC;
+		task->thread.debug.dbcr0 &= ~DBCR0_BT;
+		task->thread.debug.dbcr0 |= DBCR0_IDM | DBCR0_IC;
 		regs->msr |= MSR_DE;
 #else
 		regs->msr &= ~MSR_BE;
@@ -871,8 +871,8 @@ void user_enable_block_step(struct task_struct *task)
 
 	if (regs != NULL) {
 #ifdef CONFIG_PPC_ADV_DEBUG_REGS
-		task->thread.dbcr0 &= ~DBCR0_IC;
-		task->thread.dbcr0 = DBCR0_IDM | DBCR0_BT;
+		task->thread.debug.dbcr0 &= ~DBCR0_IC;
+		task->thread.debug.dbcr0 = DBCR0_IDM | DBCR0_BT;
 		regs->msr |= MSR_DE;
 #else
 		regs->msr &= ~MSR_SE;
@@ -894,16 +894,16 @@ void user_disable_single_step(struct task_struct *task)
 		 * And, after doing so, if all debug flags are off, turn
 		 * off DBCR0(IDM) and MSR(DE) .... Torez
 		 */
-		task->thread.dbcr0 &= ~DBCR0_IC;
+		task->thread.debug.dbcr0 &= ~DBCR0_IC;
 		/*
 		 * Test to see if any of the DBCR_ACTIVE_EVENTS bits are set.
 		 */
-		if (!DBCR_ACTIVE_EVENTS(task->thread.dbcr0,
-					task->thread.dbcr1)) {
+		if (!DBCR_ACTIVE_EVENTS(task->thread.debug.dbcr0,
+					task->thread.debug.dbcr1)) {
 			/*
 			 * All debug events were off.....
 			 */
-			task->thread.dbcr0 &= ~DBCR0_IDM;
+			task->thread.debug.dbcr0 &= ~DBCR0_IDM;
 			regs->msr &= ~MSR_DE;
 		}
 #else
@@ -1022,14 +1022,14 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr,
 	 */
 
 	/* DAC's hold the whole address without any mode flags */
-	task->thread.dac1 = data & ~0x3UL;
+	task->thread.debug.dac1 = data & ~0x3UL;
 
-	if (task->thread.dac1 == 0) {
+	if (task->thread.debug.dac1 == 0) {
 		dbcr_dac(task) &= ~(DBCR_DAC1R | DBCR_DAC1W);
-		if (!DBCR_ACTIVE_EVENTS(task->thread.dbcr0,
-					task->thread.dbcr1)) {
+		if (!DBCR_ACTIVE_EVENTS(task->thread.debug.dbcr0,
+					task->thread.debug.dbcr1)) {
 			task->thread.regs->msr &= ~MSR_DE;
-			task->thread.dbcr0 &= ~DBCR0_IDM;
+			task->thread.debug.dbcr0 &= ~DBCR0_IDM;
 		}
 		return 0;
 	}
@@ -1041,7 +1041,7 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr,
 
 	/* Set the Internal Debugging flag (IDM bit 1) for the DBCR0
 	   register */
-	task->thread.dbcr0 |= DBCR0_IDM;
+	task->thread.debug.dbcr0 |= DBCR0_IDM;
 
 	/* Check for write and read flags and set DBCR0
 	   accordingly */
@@ -1071,10 +1071,10 @@ static long set_instruction_bp(struct task_struct *child,
 			      struct ppc_hw_breakpoint *bp_info)
 {
 	int slot;
-	int slot1_in_use = ((child->thread.dbcr0 & DBCR0_IAC1) != 0);
-	int slot2_in_use = ((child->thread.dbcr0 & DBCR0_IAC2) != 0);
-	int slot3_in_use = ((child->thread.dbcr0 & DBCR0_IAC3) != 0);
-	int slot4_in_use = ((child->thread.dbcr0 & DBCR0_IAC4) != 0);
+	int slot1_in_use = ((child->thread.debug.dbcr0 & DBCR0_IAC1) != 0);
+	int slot2_in_use = ((child->thread.debug.dbcr0 & DBCR0_IAC2) != 0);
+	int slot3_in_use = ((child->thread.debug.dbcr0 & DBCR0_IAC3) != 0);
+	int slot4_in_use = ((child->thread.debug.dbcr0 & DBCR0_IAC4) != 0);
 
 	if (dbcr_iac_range(child) & DBCR_IAC12MODE)
 		slot2_in_use = 1;
@@ -1093,9 +1093,9 @@ static long set_instruction_bp(struct task_struct *child,
 		/* We need a pair of IAC regsisters */
 		if ((!slot1_in_use) && (!slot2_in_use)) {
 			slot = 1;
-			child->thread.iac1 = bp_info->addr;
-			child->thread.iac2 = bp_info->addr2;
-			child->thread.dbcr0 |= DBCR0_IAC1;
+			child->thread.debug.iac1 = bp_info->addr;
+			child->thread.debug.iac2 = bp_info->addr2;
+			child->thread.debug.dbcr0 |= DBCR0_IAC1;
 			if (bp_info->addr_mode ==
 					PPC_BREAKPOINT_MODE_RANGE_EXCLUSIVE)
 				dbcr_iac_range(child) |= DBCR_IAC12X;
@@ -1104,9 +1104,9 @@ static long set_instruction_bp(struct task_struct *child,
 #if CONFIG_PPC_ADV_DEBUG_IACS > 2
 		} else if ((!slot3_in_use) && (!slot4_in_use)) {
 			slot = 3;
-			child->thread.iac3 = bp_info->addr;
-			child->thread.iac4 = bp_info->addr2;
-			child->thread.dbcr0 |= DBCR0_IAC3;
+			child->thread.debug.iac3 = bp_info->addr;
+			child->thread.debug.iac4 = bp_info->addr2;
+			child->thread.debug.dbcr0 |= DBCR0_IAC3;
 			if (bp_info->addr_mode ==
 					PPC_BREAKPOINT_MODE_RANGE_EXCLUSIVE)
 				dbcr_iac_range(child) |= DBCR_IAC34X;
@@ -1126,30 +1126,30 @@ static long set_instruction_bp(struct task_struct *child,
 			 */
 			if (slot2_in_use || (slot3_in_use == slot4_in_use)) {
 				slot = 1;
-				child->thread.iac1 = bp_info->addr;
-				child->thread.dbcr0 |= DBCR0_IAC1;
+				child->thread.debug.iac1 = bp_info->addr;
+				child->thread.debug.dbcr0 |= DBCR0_IAC1;
 				goto out;
 			}
 		}
 		if (!slot2_in_use) {
 			slot = 2;
-			child->thread.iac2 = bp_info->addr;
-			child->thread.dbcr0 |= DBCR0_IAC2;
+			child->thread.debug.iac2 = bp_info->addr;
+			child->thread.debug.dbcr0 |= DBCR0_IAC2;
 #if CONFIG_PPC_ADV_DEBUG_IACS > 2
 		} else if (!slot3_in_use) {
 			slot = 3;
-			child->thread.iac3 = bp_info->addr;
-			child->thread.dbcr0 |= DBCR0_IAC3;
+			child->thread.debug.iac3 = bp_info->addr;
+			child->thread.debug.dbcr0 |= DBCR0_IAC3;
 		} else if (!slot4_in_use) {
 			slot = 4;
-			child->thread.iac4 = bp_info->addr;
-			child->thread.dbcr0 |= DBCR0_IAC4;
+			child->thread.debug.iac4 = bp_info->addr;
+			child->thread.debug.dbcr0 |= DBCR0_IAC4;
 #endif
 		} else
 			return -ENOSPC;
 	}
 out:
-	child->thread.dbcr0 |= DBCR0_IDM;
+	child->thread.debug.dbcr0 |= DBCR0_IDM;
 	child->thread.regs->msr |= MSR_DE;
 
 	return slot;
@@ -1159,49 +1159,49 @@ static int del_instruction_bp(struct task_struct *child, int slot)
 {
 	switch (slot) {
 	case 1:
-		if ((child->thread.dbcr0 & DBCR0_IAC1) == 0)
+		if ((child->thread.debug.dbcr0 & DBCR0_IAC1) == 0)
 			return -ENOENT;
 
 		if (dbcr_iac_range(child) & DBCR_IAC12MODE) {
 			/* address range - clear slots 1 & 2 */
-			child->thread.iac2 = 0;
+			child->thread.debug.iac2 = 0;
 			dbcr_iac_range(child) &= ~DBCR_IAC12MODE;
 		}
-		child->thread.iac1 = 0;
-		child->thread.dbcr0 &= ~DBCR0_IAC1;
+		child->thread.debug.iac1 = 0;
+		child->thread.debug.dbcr0 &= ~DBCR0_IAC1;
 		break;
 	case 2:
-		if ((child->thread.dbcr0 & DBCR0_IAC2) == 0)
+		if ((child->thread.debug.dbcr0 & DBCR0_IAC2) == 0)
 			return -ENOENT;
 
 		if (dbcr_iac_range(child) & DBCR_IAC12MODE)
 			/* used in a range */
 			return -EINVAL;
-		child->thread.iac2 = 0;
-		child->thread.dbcr0 &= ~DBCR0_IAC2;
+		child->thread.debug.iac2 = 0;
+		child->thread.debug.dbcr0 &= ~DBCR0_IAC2;
 		break;
 #if CONFIG_PPC_ADV_DEBUG_IACS > 2
 	case 3:
-		if ((child->thread.dbcr0 & DBCR0_IAC3) == 0)
+		if ((child->thread.debug.dbcr0 & DBCR0_IAC3) == 0)
 			return -ENOENT;
 
 		if (dbcr_iac_range(child) & DBCR_IAC34MODE) {
 			/* address range - clear slots 3 & 4 */
-			child->thread.iac4 = 0;
+			child->thread.debug.iac4 = 0;
 			dbcr_iac_range(child) &= ~DBCR_IAC34MODE;
 		}
-		child->thread.iac3 = 0;
-		child->thread.dbcr0 &= ~DBCR0_IAC3;
+		child->thread.debug.iac3 = 0;
+		child->thread.debug.dbcr0 &= ~DBCR0_IAC3;
 		break;
 	case 4:
-		if ((child->thread.dbcr0 & DBCR0_IAC4) == 0)
+		if ((child->thread.debug.dbcr0 & DBCR0_IAC4) == 0)
 			return -ENOENT;
 
 		if (dbcr_iac_range(child) & DBCR_IAC34MODE)
 			/* Used in a range */
 			return -EINVAL;
-		child->thread.iac4 = 0;
-		child->thread.dbcr0 &= ~DBCR0_IAC4;
+		child->thread.debug.iac4 = 0;
+		child->thread.debug.dbcr0 &= ~DBCR0_IAC4;
 		break;
 #endif
 	default:
@@ -1231,18 +1231,18 @@ static int set_dac(struct task_struct *child, struct ppc_hw_breakpoint *bp_info)
 			dbcr_dac(child) |= DBCR_DAC1R;
 		if (bp_info->trigger_type & PPC_BREAKPOINT_TRIGGER_WRITE)
 			dbcr_dac(child) |= DBCR_DAC1W;
-		child->thread.dac1 = (unsigned long)bp_info->addr;
+		child->thread.debug.dac1 = (unsigned long)bp_info->addr;
 #if CONFIG_PPC_ADV_DEBUG_DVCS > 0
 		if (byte_enable) {
-			child->thread.dvc1 =
+			child->thread.debug.dvc1 =
 				(unsigned long)bp_info->condition_value;
-			child->thread.dbcr2 |=
+			child->thread.debug.dbcr2 |=
 				((byte_enable << DBCR2_DVC1BE_SHIFT) |
 				 (condition_mode << DBCR2_DVC1M_SHIFT));
 		}
 #endif
 #ifdef CONFIG_PPC_ADV_DEBUG_DAC_RANGE
-	} else if (child->thread.dbcr2 & DBCR2_DAC12MODE) {
+	} else if (child->thread.debug.dbcr2 & DBCR2_DAC12MODE) {
 		/* Both dac1 and dac2 are part of a range */
 		return -ENOSPC;
 #endif
@@ -1252,19 +1252,19 @@ static int set_dac(struct task_struct *child, struct ppc_hw_breakpoint *bp_info)
 			dbcr_dac(child) |= DBCR_DAC2R;
 		if (bp_info->trigger_type & PPC_BREAKPOINT_TRIGGER_WRITE)
 			dbcr_dac(child) |= DBCR_DAC2W;
-		child->thread.dac2 = (unsigned long)bp_info->addr;
+		child->thread.debug.dac2 = (unsigned long)bp_info->addr;
 #if CONFIG_PPC_ADV_DEBUG_DVCS > 0
 		if (byte_enable) {
-			child->thread.dvc2 =
+			child->thread.debug.dvc2 =
 				(unsigned long)bp_info->condition_value;
-			child->thread.dbcr2 |=
+			child->thread.debug.dbcr2 |=
 				((byte_enable << DBCR2_DVC2BE_SHIFT) |
 				 (condition_mode << DBCR2_DVC2M_SHIFT));
 		}
 #endif
 	} else
 		return -ENOSPC;
-	child->thread.dbcr0 |= DBCR0_IDM;
+	child->thread.debug.dbcr0 |= DBCR0_IDM;
 	child->thread.regs->msr |= MSR_DE;
 
 	return slot + 4;
@@ -1276,32 +1276,32 @@ static int del_dac(struct task_struct *child, int slot)
 		if ((dbcr_dac(child) & (DBCR_DAC1R | DBCR_DAC1W)) == 0)
 			return -ENOENT;
 
-		child->thread.dac1 = 0;
+		child->thread.debug.dac1 = 0;
 		dbcr_dac(child) &= ~(DBCR_DAC1R | DBCR_DAC1W);
 #ifdef CONFIG_PPC_ADV_DEBUG_DAC_RANGE
-		if (child->thread.dbcr2 & DBCR2_DAC12MODE) {
-			child->thread.dac2 = 0;
-			child->thread.dbcr2 &= ~DBCR2_DAC12MODE;
+		if (child->thread.debug.dbcr2 & DBCR2_DAC12MODE) {
+			child->thread.debug.dac2 = 0;
+			child->thread.debug.dbcr2 &= ~DBCR2_DAC12MODE;
 		}
-		child->thread.dbcr2 &= ~(DBCR2_DVC1M | DBCR2_DVC1BE);
+		child->thread.debug.dbcr2 &= ~(DBCR2_DVC1M | DBCR2_DVC1BE);
 #endif
 #if CONFIG_PPC_ADV_DEBUG_DVCS > 0
-		child->thread.dvc1 = 0;
+		child->thread.debug.dvc1 = 0;
 #endif
 	} else if (slot == 2) {
 		if ((dbcr_dac(child) & (DBCR_DAC2R | DBCR_DAC2W)) == 0)
 			return -ENOENT;
 
 #ifdef CONFIG_PPC_ADV_DEBUG_DAC_RANGE
-		if (child->thread.dbcr2 & DBCR2_DAC12MODE)
+		if (child->thread.debug.dbcr2 & DBCR2_DAC12MODE)
 			/* Part of a range */
 			return -EINVAL;
-		child->thread.dbcr2 &= ~(DBCR2_DVC2M | DBCR2_DVC2BE);
+		child->thread.debug.dbcr2 &= ~(DBCR2_DVC2M | DBCR2_DVC2BE);
 #endif
 #if CONFIG_PPC_ADV_DEBUG_DVCS > 0
-		child->thread.dvc2 = 0;
+		child->thread.debug.dvc2 = 0;
 #endif
-		child->thread.dac2 = 0;
+		child->thread.debug.dac2 = 0;
 		dbcr_dac(child) &= ~(DBCR_DAC2R | DBCR_DAC2W);
 	} else
 		return -EINVAL;
@@ -1343,22 +1343,22 @@ static int set_dac_range(struct task_struct *child,
 			return -EIO;
 	}
 
-	if (child->thread.dbcr0 &
+	if (child->thread.debug.dbcr0 &
 	    (DBCR0_DAC1R | DBCR0_DAC1W | DBCR0_DAC2R | DBCR0_DAC2W))
 		return -ENOSPC;
 
 	if (bp_info->trigger_type & PPC_BREAKPOINT_TRIGGER_READ)
-		child->thread.dbcr0 |= (DBCR0_DAC1R | DBCR0_IDM);
+		child->thread.debug.dbcr0 |= (DBCR0_DAC1R | DBCR0_IDM);
 	if (bp_info->trigger_type & PPC_BREAKPOINT_TRIGGER_WRITE)
-		child->thread.dbcr0 |= (DBCR0_DAC1W | DBCR0_IDM);
-	child->thread.dac1 = bp_info->addr;
-	child->thread.dac2 = bp_info->addr2;
+		child->thread.debug.dbcr0 |= (DBCR0_DAC1W | DBCR0_IDM);
+	child->thread.debug.dac1 = bp_info->addr;
+	child->thread.debug.dac2 = bp_info->addr2;
 	if (mode == PPC_BREAKPOINT_MODE_RANGE_INCLUSIVE)
-		child->thread.dbcr2  |= DBCR2_DAC12M;
+		child->thread.debug.dbcr2  |= DBCR2_DAC12M;
 	else if (mode == PPC_BREAKPOINT_MODE_RANGE_EXCLUSIVE)
-		child->thread.dbcr2  |= DBCR2_DAC12MX;
+		child->thread.debug.dbcr2  |= DBCR2_DAC12MX;
 	else	/* PPC_BREAKPOINT_MODE_MASK */
-		child->thread.dbcr2  |= DBCR2_DAC12MM;
+		child->thread.debug.dbcr2  |= DBCR2_DAC12MM;
 	child->thread.regs->msr |= MSR_DE;
 
 	return 5;
@@ -1489,9 +1489,9 @@ static long ppc_del_hwdebug(struct task_struct *child, long data)
 		rc = del_dac(child, (int)data - 4);
 
 	if (!rc) {
-		if (!DBCR_ACTIVE_EVENTS(child->thread.dbcr0,
-					child->thread.dbcr1)) {
-			child->thread.dbcr0 &= ~DBCR0_IDM;
+		if (!DBCR_ACTIVE_EVENTS(child->thread.debug.dbcr0,
+					child->thread.debug.dbcr1)) {
+			child->thread.debug.dbcr0 &= ~DBCR0_IDM;
 			child->thread.regs->msr &= ~MSR_DE;
 		}
 	}
@@ -1669,7 +1669,7 @@ long arch_ptrace(struct task_struct *child, long request,
 		if (addr > 0)
 			break;
 #ifdef CONFIG_PPC_ADV_DEBUG_REGS
-		ret = put_user(child->thread.dac1, datalp);
+		ret = put_user(child->thread.debug.dac1, datalp);
 #else
 		dabr_fake = ((child->thread.hw_brk.address & (~HW_BRK_TYPE_DABR)) |
 			     (child->thread.hw_brk.type & HW_BRK_TYPE_DABR));
diff --git a/arch/powerpc/kernel/ptrace32.c b/arch/powerpc/kernel/ptrace32.c
index f51599e941c7..18c7c65ea46d 100644
--- a/arch/powerpc/kernel/ptrace32.c
+++ b/arch/powerpc/kernel/ptrace32.c
@@ -269,7 +269,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 		if (addr > 0)
 			break;
 #ifdef CONFIG_PPC_ADV_DEBUG_REGS
-		ret = put_user(child->thread.dac1, (u32 __user *)data);
+		ret = put_user(child->thread.debug.dac1, (u32 __user *)data);
 #else
 		dabr_fake = (
 			(child->thread.hw_brk.address & (~HW_BRK_TYPE_DABR)) |
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index bebdf1a1a540..3f220d93c72f 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -1309,7 +1309,7 @@ int sys_debug_setcontext(struct ucontext __user *ctx,
 	unsigned char tmp;
 	unsigned long new_msr = regs->msr;
 #ifdef CONFIG_PPC_ADV_DEBUG_REGS
-	unsigned long new_dbcr0 = current->thread.dbcr0;
+	unsigned long new_dbcr0 = current->thread.debug.dbcr0;
 #endif
 
 	for (i=0; i<ndbg; i++) {
@@ -1324,7 +1324,7 @@ int sys_debug_setcontext(struct ucontext __user *ctx,
 			} else {
 				new_dbcr0 &= ~DBCR0_IC;
 				if (!DBCR_ACTIVE_EVENTS(new_dbcr0,
-						current->thread.dbcr1)) {
+						current->thread.debug.dbcr1)) {
 					new_msr &= ~MSR_DE;
 					new_dbcr0 &= ~DBCR0_IDM;
 				}
@@ -1359,7 +1359,7 @@ int sys_debug_setcontext(struct ucontext __user *ctx,
 	   the user is really doing something wrong. */
 	regs->msr = new_msr;
 #ifdef CONFIG_PPC_ADV_DEBUG_REGS
-	current->thread.dbcr0 = new_dbcr0;
+	current->thread.debug.dbcr0 = new_dbcr0;
 #endif
 
 	if (!access_ok(VERIFY_READ, ctx, sizeof(*ctx))
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index f783c932faeb..4f5df4e7df12 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -351,8 +351,8 @@ static inline int check_io_access(struct pt_regs *regs)
 #define REASON_TRAP		ESR_PTR
 
 /* single-step stuff */
-#define single_stepping(regs)	(current->thread.dbcr0 & DBCR0_IC)
-#define clear_single_step(regs)	(current->thread.dbcr0 &= ~DBCR0_IC)
+#define single_stepping(regs)	(current->thread.debug.dbcr0 & DBCR0_IC)
+#define clear_single_step(regs)	(current->thread.debug.dbcr0 &= ~DBCR0_IC)
 
 #else
 /* On non-4xx, the reason for the machine check or program
@@ -1486,7 +1486,7 @@ static void handle_debug(struct pt_regs *regs, unsigned long debug_status)
 	if (debug_status & (DBSR_DAC1R | DBSR_DAC1W)) {
 		dbcr_dac(current) &= ~(DBCR_DAC1R | DBCR_DAC1W);
 #ifdef CONFIG_PPC_ADV_DEBUG_DAC_RANGE
-		current->thread.dbcr2 &= ~DBCR2_DAC12MODE;
+		current->thread.debug.dbcr2 &= ~DBCR2_DAC12MODE;
 #endif
 		do_send_trap(regs, mfspr(SPRN_DAC1), debug_status, TRAP_HWBKPT,
 			     5);
@@ -1497,24 +1497,24 @@ static void handle_debug(struct pt_regs *regs, unsigned long debug_status)
 			     6);
 		changed |= 0x01;
 	}  else if (debug_status & DBSR_IAC1) {
-		current->thread.dbcr0 &= ~DBCR0_IAC1;
+		current->thread.debug.dbcr0 &= ~DBCR0_IAC1;
 		dbcr_iac_range(current) &= ~DBCR_IAC12MODE;
 		do_send_trap(regs, mfspr(SPRN_IAC1), debug_status, TRAP_HWBKPT,
 			     1);
 		changed |= 0x01;
 	}  else if (debug_status & DBSR_IAC2) {
-		current->thread.dbcr0 &= ~DBCR0_IAC2;
+		current->thread.debug.dbcr0 &= ~DBCR0_IAC2;
 		do_send_trap(regs, mfspr(SPRN_IAC2), debug_status, TRAP_HWBKPT,
 			     2);
 		changed |= 0x01;
 	}  else if (debug_status & DBSR_IAC3) {
-		current->thread.dbcr0 &= ~DBCR0_IAC3;
+		current->thread.debug.dbcr0 &= ~DBCR0_IAC3;
 		dbcr_iac_range(current) &= ~DBCR_IAC34MODE;
 		do_send_trap(regs, mfspr(SPRN_IAC3), debug_status, TRAP_HWBKPT,
 			     3);
 		changed |= 0x01;
 	}  else if (debug_status & DBSR_IAC4) {
-		current->thread.dbcr0 &= ~DBCR0_IAC4;
+		current->thread.debug.dbcr0 &= ~DBCR0_IAC4;
 		do_send_trap(regs, mfspr(SPRN_IAC4), debug_status, TRAP_HWBKPT,
 			     4);
 		changed |= 0x01;
@@ -1524,19 +1524,20 @@ static void handle_debug(struct pt_regs *regs, unsigned long debug_status)
 	 * Check all other debug flags and see if that bit needs to be turned
 	 * back on or not.
 	 */
-	if (DBCR_ACTIVE_EVENTS(current->thread.dbcr0, current->thread.dbcr1))
+	if (DBCR_ACTIVE_EVENTS(current->thread.debug.dbcr0,
+			       current->thread.debug.dbcr1))
 		regs->msr |= MSR_DE;
 	else
 		/* Make sure the IDM flag is off */
-		current->thread.dbcr0 &= ~DBCR0_IDM;
+		current->thread.debug.dbcr0 &= ~DBCR0_IDM;
 
 	if (changed & 0x01)
-		mtspr(SPRN_DBCR0, current->thread.dbcr0);
+		mtspr(SPRN_DBCR0, current->thread.debug.dbcr0);
 }
 
 void __kprobes DebugException(struct pt_regs *regs, unsigned long debug_status)
 {
-	current->thread.dbsr = debug_status;
+	current->thread.debug.dbsr = debug_status;
 
 	/* Hack alert: On BookE, Branch Taken stops on the branch itself, while
 	 * on server, it stops on the target of the branch. In order to simulate
@@ -1553,8 +1554,8 @@ void __kprobes DebugException(struct pt_regs *regs, unsigned long debug_status)
 
 		/* Do the single step trick only when coming from userspace */
 		if (user_mode(regs)) {
-			current->thread.dbcr0 &= ~DBCR0_BT;
-			current->thread.dbcr0 |= DBCR0_IDM | DBCR0_IC;
+			current->thread.debug.dbcr0 &= ~DBCR0_BT;
+			current->thread.debug.dbcr0 |= DBCR0_IDM | DBCR0_IC;
 			regs->msr |= MSR_DE;
 			return;
 		}
@@ -1582,13 +1583,13 @@ void __kprobes DebugException(struct pt_regs *regs, unsigned long debug_status)
 			return;
 
 		if (user_mode(regs)) {
-			current->thread.dbcr0 &= ~DBCR0_IC;
-			if (DBCR_ACTIVE_EVENTS(current->thread.dbcr0,
-					       current->thread.dbcr1))
+			current->thread.debug.dbcr0 &= ~DBCR0_IC;
+			if (DBCR_ACTIVE_EVENTS(current->thread.debug.dbcr0,
+					       current->thread.debug.dbcr1))
 				regs->msr |= MSR_DE;
 			else
 				/* Make sure the IDM bit is off */
-				current->thread.dbcr0 &= ~DBCR0_IDM;
+				current->thread.debug.dbcr0 &= ~DBCR0_IDM;
 		}
 
 		_exception(SIGTRAP, regs, TRAP_TRACE, regs->nip);
-- 
cgit 


From fc82cf113bded906e0fc1d4a8636a6776670b1c5 Mon Sep 17 00:00:00 2001
From: Bharat Bhushan <r65777@freescale.com>
Date: Thu, 4 Jul 2013 12:27:44 +0530
Subject: powerpc: export debug registers save function for KVM

KVM need this function when switching from vcpu to user-space
thread. My subsequent patch will use this function.

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Acked-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/switch_to.h | 1 +
 arch/powerpc/kernel/process.c        | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/switch_to.h b/arch/powerpc/include/asm/switch_to.h
index 2be5618cdec6..9ee12610af02 100644
--- a/arch/powerpc/include/asm/switch_to.h
+++ b/arch/powerpc/include/asm/switch_to.h
@@ -35,6 +35,7 @@ extern void giveup_vsx(struct task_struct *);
 extern void enable_kernel_spe(void);
 extern void giveup_spe(struct task_struct *);
 extern void load_up_spe(struct task_struct *);
+extern void switch_booke_debug_regs(struct thread_struct *new_thread);
 
 #ifndef CONFIG_SMP
 extern void discard_lazy_cpu_state(void);
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index a2b9231cfd48..c24a90667675 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -371,12 +371,13 @@ static void prime_debug_regs(struct thread_struct *thread)
  * debug registers, set the debug registers from the values
  * stored in the new thread.
  */
-static void switch_booke_debug_regs(struct thread_struct *new_thread)
+void switch_booke_debug_regs(struct thread_struct *new_thread)
 {
 	if ((current->thread.debug.dbcr0 & DBCR0_IDM)
 		|| (new_thread->debug.dbcr0 & DBCR0_IDM))
 			prime_debug_regs(new_thread);
 }
+EXPORT_SYMBOL_GPL(switch_booke_debug_regs);
 #else	/* !CONFIG_PPC_ADV_DEBUG_REGS */
 #ifndef CONFIG_HAVE_HW_BREAKPOINT
 static void set_debug_reg_defaults(struct thread_struct *thread)
-- 
cgit 


From b12c784123ff805c066449ca580f15a903c24994 Mon Sep 17 00:00:00 2001
From: Bharat Bhushan <r65777@freescale.com>
Date: Thu, 4 Jul 2013 12:27:45 +0530
Subject: KVM: PPC: E500: exit to user space on "ehpriv 1" instruction

"ehpriv 1" instruction is used for setting software breakpoints
by user space. This patch adds support to exit to user space
with "run->debug" have relevant information.

As this is the first point we are using run->debug, also defined
the run->debug structure.

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/disassemble.h |  4 ++++
 arch/powerpc/include/asm/kvm_booke.h   |  7 ++++++-
 arch/powerpc/include/uapi/asm/kvm.h    | 21 +++++++++++++++++----
 arch/powerpc/kvm/booke.c               |  2 +-
 arch/powerpc/kvm/e500_emulate.c        | 26 ++++++++++++++++++++++++++
 5 files changed, 54 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/include/asm/disassemble.h b/arch/powerpc/include/asm/disassemble.h
index 9b198d1b3b2b..856f8deb557a 100644
--- a/arch/powerpc/include/asm/disassemble.h
+++ b/arch/powerpc/include/asm/disassemble.h
@@ -77,4 +77,8 @@ static inline unsigned int get_d(u32 inst)
 	return inst & 0xffff;
 }
 
+static inline unsigned int get_oc(u32 inst)
+{
+	return (inst >> 11) & 0x7fff;
+}
 #endif /* __ASM_PPC_DISASSEMBLE_H__ */
diff --git a/arch/powerpc/include/asm/kvm_booke.h b/arch/powerpc/include/asm/kvm_booke.h
index d3c1eb34c986..dd8f61510dfd 100644
--- a/arch/powerpc/include/asm/kvm_booke.h
+++ b/arch/powerpc/include/asm/kvm_booke.h
@@ -26,7 +26,12 @@
 /* LPIDs we support with this build -- runtime limit may be lower */
 #define KVMPPC_NR_LPIDS                        64
 
-#define KVMPPC_INST_EHPRIV	0x7c00021c
+#define KVMPPC_INST_EHPRIV		0x7c00021c
+#define EHPRIV_OC_SHIFT			11
+/* "ehpriv 1" : ehpriv with OC = 1 is used for debug emulation */
+#define EHPRIV_OC_DEBUG			1
+#define KVMPPC_INST_EHPRIV_DEBUG	(KVMPPC_INST_EHPRIV | \
+					 (EHPRIV_OC_DEBUG << EHPRIV_OC_SHIFT))
 
 static inline void kvmppc_set_gpr(struct kvm_vcpu *vcpu, int num, ulong val)
 {
diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h
index e420d46d363f..482bba56e499 100644
--- a/arch/powerpc/include/uapi/asm/kvm.h
+++ b/arch/powerpc/include/uapi/asm/kvm.h
@@ -269,7 +269,24 @@ struct kvm_fpu {
 	__u64 fpr[32];
 };
 
+/*
+ * Defines for h/w breakpoint, watchpoint (read, write or both) and
+ * software breakpoint.
+ * These are used as "type" in KVM_SET_GUEST_DEBUG ioctl and "status"
+ * for KVM_DEBUG_EXIT.
+ */
+#define KVMPPC_DEBUG_NONE		0x0
+#define KVMPPC_DEBUG_BREAKPOINT		(1UL << 1)
+#define KVMPPC_DEBUG_WATCH_WRITE	(1UL << 2)
+#define KVMPPC_DEBUG_WATCH_READ		(1UL << 3)
 struct kvm_debug_exit_arch {
+	__u64 address;
+	/*
+	 * exiting to userspace because of h/w breakpoint, watchpoint
+	 * (read, write or both) and software breakpoint.
+	 */
+	__u32 status;
+	__u32 reserved;
 };
 
 /* for KVM_SET_GUEST_DEBUG */
@@ -281,10 +298,6 @@ struct kvm_guest_debug_arch {
 		 * Type denotes h/w breakpoint, read watchpoint, write
 		 * watchpoint or watchpoint (both read and write).
 		 */
-#define KVMPPC_DEBUG_NONE		0x0
-#define KVMPPC_DEBUG_BREAKPOINT		(1UL << 1)
-#define KVMPPC_DEBUG_WATCH_WRITE	(1UL << 2)
-#define KVMPPC_DEBUG_WATCH_READ		(1UL << 3)
 		__u32 type;
 		__u32 reserved;
 	} bp[16];
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 65fa7754b194..1d6edf00e0e5 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -1477,7 +1477,7 @@ int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 		val = get_reg_val(reg->id, vcpu->arch.tsr);
 		break;
 	case KVM_REG_PPC_DEBUG_INST:
-		val = get_reg_val(reg->id, KVMPPC_INST_EHPRIV);
+		val = get_reg_val(reg->id, KVMPPC_INST_EHPRIV_DEBUG);
 		break;
 	case KVM_REG_PPC_VRSAVE:
 		val = get_reg_val(reg->id, vcpu->arch.vrsave);
diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c
index b10a01243abd..6163a0318d2a 100644
--- a/arch/powerpc/kvm/e500_emulate.c
+++ b/arch/powerpc/kvm/e500_emulate.c
@@ -26,6 +26,7 @@
 #define XOP_TLBRE   946
 #define XOP_TLBWE   978
 #define XOP_TLBILX  18
+#define XOP_EHPRIV  270
 
 #ifdef CONFIG_KVM_E500MC
 static int dbell2prio(ulong param)
@@ -82,6 +83,26 @@ static int kvmppc_e500_emul_msgsnd(struct kvm_vcpu *vcpu, int rb)
 }
 #endif
 
+static int kvmppc_e500_emul_ehpriv(struct kvm_run *run, struct kvm_vcpu *vcpu,
+				   unsigned int inst, int *advance)
+{
+	int emulated = EMULATE_DONE;
+
+	switch (get_oc(inst)) {
+	case EHPRIV_OC_DEBUG:
+		run->exit_reason = KVM_EXIT_DEBUG;
+		run->debug.arch.address = vcpu->arch.pc;
+		run->debug.arch.status = 0;
+		kvmppc_account_exit(vcpu, DEBUG_EXITS);
+		emulated = EMULATE_EXIT_USER;
+		*advance = 0;
+		break;
+	default:
+		emulated = EMULATE_FAIL;
+	}
+	return emulated;
+}
+
 int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
                            unsigned int inst, int *advance)
 {
@@ -130,6 +151,11 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
 			emulated = kvmppc_e500_emul_tlbivax(vcpu, ea);
 			break;
 
+		case XOP_EHPRIV:
+			emulated = kvmppc_e500_emul_ehpriv(run, vcpu, inst,
+							   advance);
+			break;
+
 		default:
 			emulated = EMULATE_FAIL;
 		}
-- 
cgit 


From 547465ef8bcad77a3a73dad5151d9d28a0c1b88d Mon Sep 17 00:00:00 2001
From: Bharat Bhushan <r65777@freescale.com>
Date: Thu, 4 Jul 2013 12:27:46 +0530
Subject: KVM: PPC: E500: Using "struct debug_reg"

For KVM also use the "struct debug_reg" defined in asm/processor.h

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/kvm_host.h | 13 +------------
 arch/powerpc/kvm/booke.c            | 34 ++++++++++++++++++++++++----------
 2 files changed, 25 insertions(+), 22 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index b6881917cd84..7e83c5ff830a 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -387,17 +387,6 @@ struct kvmppc_slb {
 #define KVMPPC_EPR_USER		1 /* exit to userspace to fill EPR */
 #define KVMPPC_EPR_KERNEL	2 /* in-kernel irqchip */
 
-struct kvmppc_booke_debug_reg {
-	u32 dbcr0;
-	u32 dbcr1;
-	u32 dbcr2;
-#ifdef CONFIG_KVM_E500MC
-	u32 dbcr4;
-#endif
-	u64 iac[KVMPPC_BOOKE_MAX_IAC];
-	u64 dac[KVMPPC_BOOKE_MAX_DAC];
-};
-
 #define KVMPPC_IRQ_DEFAULT	0
 #define KVMPPC_IRQ_MPIC		1
 #define KVMPPC_IRQ_XICS		2
@@ -549,7 +538,7 @@ struct kvm_vcpu_arch {
 	u32 eptcfg;
 	u32 epr;
 	u32 crit_save;
-	struct kvmppc_booke_debug_reg dbg_reg;
+	struct debug_reg dbg_reg;
 #endif
 	gpa_t paddr_accessed;
 	gva_t vaddr_accessed;
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 1d6edf00e0e5..a972fb600a99 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -1441,7 +1441,6 @@ int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 	int r = 0;
 	union kvmppc_one_reg val;
 	int size;
-	long int i;
 
 	size = one_reg_size(reg->id);
 	if (size > sizeof(val))
@@ -1449,16 +1448,24 @@ int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 
 	switch (reg->id) {
 	case KVM_REG_PPC_IAC1:
+		val = get_reg_val(reg->id, vcpu->arch.dbg_reg.iac1);
+		break;
 	case KVM_REG_PPC_IAC2:
+		val = get_reg_val(reg->id, vcpu->arch.dbg_reg.iac2);
+		break;
+#if CONFIG_PPC_ADV_DEBUG_IACS > 2
 	case KVM_REG_PPC_IAC3:
+		val = get_reg_val(reg->id, vcpu->arch.dbg_reg.iac3);
+		break;
 	case KVM_REG_PPC_IAC4:
-		i = reg->id - KVM_REG_PPC_IAC1;
-		val = get_reg_val(reg->id, vcpu->arch.dbg_reg.iac[i]);
+		val = get_reg_val(reg->id, vcpu->arch.dbg_reg.iac4);
 		break;
+#endif
 	case KVM_REG_PPC_DAC1:
+		val = get_reg_val(reg->id, vcpu->arch.dbg_reg.dac1);
+		break;
 	case KVM_REG_PPC_DAC2:
-		i = reg->id - KVM_REG_PPC_DAC1;
-		val = get_reg_val(reg->id, vcpu->arch.dbg_reg.dac[i]);
+		val = get_reg_val(reg->id, vcpu->arch.dbg_reg.dac2);
 		break;
 	case KVM_REG_PPC_EPR: {
 		u32 epr = get_guest_epr(vcpu);
@@ -1501,7 +1508,6 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 	int r = 0;
 	union kvmppc_one_reg val;
 	int size;
-	long int i;
 
 	size = one_reg_size(reg->id);
 	if (size > sizeof(val))
@@ -1512,16 +1518,24 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 
 	switch (reg->id) {
 	case KVM_REG_PPC_IAC1:
+		vcpu->arch.dbg_reg.iac1 = set_reg_val(reg->id, val);
+		break;
 	case KVM_REG_PPC_IAC2:
+		vcpu->arch.dbg_reg.iac2 = set_reg_val(reg->id, val);
+		break;
+#if CONFIG_PPC_ADV_DEBUG_IACS > 2
 	case KVM_REG_PPC_IAC3:
+		vcpu->arch.dbg_reg.iac3 = set_reg_val(reg->id, val);
+		break;
 	case KVM_REG_PPC_IAC4:
-		i = reg->id - KVM_REG_PPC_IAC1;
-		vcpu->arch.dbg_reg.iac[i] = set_reg_val(reg->id, val);
+		vcpu->arch.dbg_reg.iac4 = set_reg_val(reg->id, val);
 		break;
+#endif
 	case KVM_REG_PPC_DAC1:
+		vcpu->arch.dbg_reg.dac1 = set_reg_val(reg->id, val);
+		break;
 	case KVM_REG_PPC_DAC2:
-		i = reg->id - KVM_REG_PPC_DAC1;
-		vcpu->arch.dbg_reg.dac[i] = set_reg_val(reg->id, val);
+		vcpu->arch.dbg_reg.dac2 = set_reg_val(reg->id, val);
 		break;
 	case KVM_REG_PPC_EPR: {
 		u32 new_epr = set_reg_val(reg->id, val);
-- 
cgit 


From ce11e48b7fdd256ec68b932a89b397a790566031 Mon Sep 17 00:00:00 2001
From: Bharat Bhushan <r65777@freescale.com>
Date: Thu, 4 Jul 2013 12:27:47 +0530
Subject: KVM: PPC: E500: Add userspace debug stub support

This patch adds the debug stub support on booke/bookehv.
Now QEMU debug stub can use hw breakpoint, watchpoint and
software breakpoint to debug guest.

This is how we save/restore debug register context when switching
between guest, userspace and kernel user-process:

When QEMU is running
 -> thread->debug_reg == QEMU debug register context.
 -> Kernel will handle switching the debug register on context switch.
 -> no vcpu_load() called

QEMU makes ioctls (except RUN)
 -> This will call vcpu_load()
 -> should not change context.
 -> Some ioctls can change vcpu debug register, context saved in vcpu->debug_regs

QEMU Makes RUN ioctl
 -> Save thread->debug_reg on STACK
 -> Store thread->debug_reg == vcpu->debug_reg
 -> load thread->debug_reg
 -> RUN VCPU ( So thread points to vcpu context )

Context switch happens When VCPU running
 -> makes vcpu_load() should not load any context
 -> kernel loads the vcpu context as thread->debug_regs points to vcpu context.

On heavyweight_exit
 -> Load the context saved on stack in thread->debug_reg

Currently we do not support debug resource emulation to guest,
On debug exception, always exit to user space irrespective of
user space is expecting the debug exception or not. If this is
unexpected exception (breakpoint/watchpoint event not set by
userspace) then let us leave the action on user space. This
is similar to what it was before, only thing is that now we
have proper exit state available to user space.

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/kvm_host.h |   3 +
 arch/powerpc/include/uapi/asm/kvm.h |   1 +
 arch/powerpc/kvm/booke.c            | 240 +++++++++++++++++++++++++++++++++---
 arch/powerpc/kvm/booke.h            |   5 +
 4 files changed, 231 insertions(+), 18 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 7e83c5ff830a..4959ff1b5376 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -538,7 +538,10 @@ struct kvm_vcpu_arch {
 	u32 eptcfg;
 	u32 epr;
 	u32 crit_save;
+	/* guest debug registers*/
 	struct debug_reg dbg_reg;
+	/* hardware visible debug registers when in guest state */
+	struct debug_reg shadow_dbg_reg;
 #endif
 	gpa_t paddr_accessed;
 	gva_t vaddr_accessed;
diff --git a/arch/powerpc/include/uapi/asm/kvm.h b/arch/powerpc/include/uapi/asm/kvm.h
index 482bba56e499..6836ec79a830 100644
--- a/arch/powerpc/include/uapi/asm/kvm.h
+++ b/arch/powerpc/include/uapi/asm/kvm.h
@@ -27,6 +27,7 @@
 #define __KVM_HAVE_PPC_SMT
 #define __KVM_HAVE_IRQCHIP
 #define __KVM_HAVE_IRQ_LINE
+#define __KVM_HAVE_GUEST_DEBUG
 
 struct kvm_regs {
 	__u64 pc;
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index a972fb600a99..8b6a790c0562 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -133,6 +133,29 @@ static void kvmppc_vcpu_sync_fpu(struct kvm_vcpu *vcpu)
 #endif
 }
 
+static void kvmppc_vcpu_sync_debug(struct kvm_vcpu *vcpu)
+{
+	/* Synchronize guest's desire to get debug interrupts into shadow MSR */
+#ifndef CONFIG_KVM_BOOKE_HV
+	vcpu->arch.shadow_msr &= ~MSR_DE;
+	vcpu->arch.shadow_msr |= vcpu->arch.shared->msr & MSR_DE;
+#endif
+
+	/* Force enable debug interrupts when user space wants to debug */
+	if (vcpu->guest_debug) {
+#ifdef CONFIG_KVM_BOOKE_HV
+		/*
+		 * Since there is no shadow MSR, sync MSR_DE into the guest
+		 * visible MSR.
+		 */
+		vcpu->arch.shared->msr |= MSR_DE;
+#else
+		vcpu->arch.shadow_msr |= MSR_DE;
+		vcpu->arch.shared->msr &= ~MSR_DE;
+#endif
+	}
+}
+
 /*
  * Helper function for "full" MSR writes.  No need to call this if only
  * EE/CE/ME/DE/RI are changing.
@@ -150,6 +173,7 @@ void kvmppc_set_msr(struct kvm_vcpu *vcpu, u32 new_msr)
 	kvmppc_mmu_msr_notify(vcpu, old_msr);
 	kvmppc_vcpu_sync_spe(vcpu);
 	kvmppc_vcpu_sync_fpu(vcpu);
+	kvmppc_vcpu_sync_debug(vcpu);
 }
 
 static void kvmppc_booke_queue_irqprio(struct kvm_vcpu *vcpu,
@@ -655,6 +679,7 @@ int kvmppc_core_check_requests(struct kvm_vcpu *vcpu)
 int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 {
 	int ret, s;
+	struct thread_struct thread;
 #ifdef CONFIG_PPC_FPU
 	unsigned int fpscr;
 	int fpexc_mode;
@@ -696,6 +721,12 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 	kvmppc_load_guest_fp(vcpu);
 #endif
 
+	/* Switch to guest debug context */
+	thread.debug = vcpu->arch.shadow_dbg_reg;
+	switch_booke_debug_regs(&thread);
+	thread.debug = current->thread.debug;
+	current->thread.debug = vcpu->arch.shadow_dbg_reg;
+
 	kvmppc_fix_ee_before_entry();
 
 	ret = __kvmppc_vcpu_run(kvm_run, vcpu);
@@ -703,6 +734,10 @@ int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 	/* No need for kvm_guest_exit. It's done in handle_exit.
 	   We also get here with interrupts enabled. */
 
+	/* Switch back to user space debug context */
+	switch_booke_debug_regs(&thread);
+	current->thread.debug = thread.debug;
+
 #ifdef CONFIG_PPC_FPU
 	kvmppc_save_guest_fp(vcpu);
 
@@ -758,6 +793,30 @@ static int emulation_exit(struct kvm_run *run, struct kvm_vcpu *vcpu)
 	}
 }
 
+static int kvmppc_handle_debug(struct kvm_run *run, struct kvm_vcpu *vcpu)
+{
+	struct debug_reg *dbg_reg = &(vcpu->arch.shadow_dbg_reg);
+	u32 dbsr = vcpu->arch.dbsr;
+
+	run->debug.arch.status = 0;
+	run->debug.arch.address = vcpu->arch.pc;
+
+	if (dbsr & (DBSR_IAC1 | DBSR_IAC2 | DBSR_IAC3 | DBSR_IAC4)) {
+		run->debug.arch.status |= KVMPPC_DEBUG_BREAKPOINT;
+	} else {
+		if (dbsr & (DBSR_DAC1W | DBSR_DAC2W))
+			run->debug.arch.status |= KVMPPC_DEBUG_WATCH_WRITE;
+		else if (dbsr & (DBSR_DAC1R | DBSR_DAC2R))
+			run->debug.arch.status |= KVMPPC_DEBUG_WATCH_READ;
+		if (dbsr & (DBSR_DAC1R | DBSR_DAC1W))
+			run->debug.arch.address = dbg_reg->dac1;
+		else if (dbsr & (DBSR_DAC2R | DBSR_DAC2W))
+			run->debug.arch.address = dbg_reg->dac2;
+	}
+
+	return RESUME_HOST;
+}
+
 static void kvmppc_fill_pt_regs(struct pt_regs *regs)
 {
 	ulong r1, ip, msr, lr;
@@ -818,6 +877,11 @@ static void kvmppc_restart_interrupt(struct kvm_vcpu *vcpu,
 	case BOOKE_INTERRUPT_CRITICAL:
 		unknown_exception(&regs);
 		break;
+	case BOOKE_INTERRUPT_DEBUG:
+		/* Save DBSR before preemption is enabled */
+		vcpu->arch.dbsr = mfspr(SPRN_DBSR);
+		kvmppc_clear_dbsr();
+		break;
 	}
 }
 
@@ -1135,18 +1199,10 @@ int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
 	}
 
 	case BOOKE_INTERRUPT_DEBUG: {
-		u32 dbsr;
-
-		vcpu->arch.pc = mfspr(SPRN_CSRR0);
-
-		/* clear IAC events in DBSR register */
-		dbsr = mfspr(SPRN_DBSR);
-		dbsr &= DBSR_IAC1 | DBSR_IAC2 | DBSR_IAC3 | DBSR_IAC4;
-		mtspr(SPRN_DBSR, dbsr);
-
-		run->exit_reason = KVM_EXIT_DEBUG;
+		r = kvmppc_handle_debug(run, vcpu);
+		if (r == RESUME_HOST)
+			run->exit_reason = KVM_EXIT_DEBUG;
 		kvmppc_account_exit(vcpu, DEBUG_EXITS);
-		r = RESUME_HOST;
 		break;
 	}
 
@@ -1197,7 +1253,7 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
 	kvmppc_set_msr(vcpu, 0);
 
 #ifndef CONFIG_KVM_BOOKE_HV
-	vcpu->arch.shadow_msr = MSR_USER | MSR_DE | MSR_IS | MSR_DS;
+	vcpu->arch.shadow_msr = MSR_USER | MSR_IS | MSR_DS;
 	vcpu->arch.shadow_pid = 1;
 	vcpu->arch.shared->msr = 0;
 #endif
@@ -1580,12 +1636,6 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 	return r;
 }
 
-int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
-					 struct kvm_guest_debug *dbg)
-{
-	return -EINVAL;
-}
-
 int kvm_arch_vcpu_ioctl_get_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
 {
 	return -ENOTSUPP;
@@ -1691,6 +1741,157 @@ void kvmppc_decrementer_func(unsigned long data)
 	kvmppc_set_tsr_bits(vcpu, TSR_DIS);
 }
 
+static int kvmppc_booke_add_breakpoint(struct debug_reg *dbg_reg,
+				       uint64_t addr, int index)
+{
+	switch (index) {
+	case 0:
+		dbg_reg->dbcr0 |= DBCR0_IAC1;
+		dbg_reg->iac1 = addr;
+		break;
+	case 1:
+		dbg_reg->dbcr0 |= DBCR0_IAC2;
+		dbg_reg->iac2 = addr;
+		break;
+#if CONFIG_PPC_ADV_DEBUG_IACS > 2
+	case 2:
+		dbg_reg->dbcr0 |= DBCR0_IAC3;
+		dbg_reg->iac3 = addr;
+		break;
+	case 3:
+		dbg_reg->dbcr0 |= DBCR0_IAC4;
+		dbg_reg->iac4 = addr;
+		break;
+#endif
+	default:
+		return -EINVAL;
+	}
+
+	dbg_reg->dbcr0 |= DBCR0_IDM;
+	return 0;
+}
+
+static int kvmppc_booke_add_watchpoint(struct debug_reg *dbg_reg, uint64_t addr,
+				       int type, int index)
+{
+	switch (index) {
+	case 0:
+		if (type & KVMPPC_DEBUG_WATCH_READ)
+			dbg_reg->dbcr0 |= DBCR0_DAC1R;
+		if (type & KVMPPC_DEBUG_WATCH_WRITE)
+			dbg_reg->dbcr0 |= DBCR0_DAC1W;
+		dbg_reg->dac1 = addr;
+		break;
+	case 1:
+		if (type & KVMPPC_DEBUG_WATCH_READ)
+			dbg_reg->dbcr0 |= DBCR0_DAC2R;
+		if (type & KVMPPC_DEBUG_WATCH_WRITE)
+			dbg_reg->dbcr0 |= DBCR0_DAC2W;
+		dbg_reg->dac2 = addr;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	dbg_reg->dbcr0 |= DBCR0_IDM;
+	return 0;
+}
+void kvm_guest_protect_msr(struct kvm_vcpu *vcpu, ulong prot_bitmap, bool set)
+{
+	/* XXX: Add similar MSR protection for BookE-PR */
+#ifdef CONFIG_KVM_BOOKE_HV
+	BUG_ON(prot_bitmap & ~(MSRP_UCLEP | MSRP_DEP | MSRP_PMMP));
+	if (set) {
+		if (prot_bitmap & MSR_UCLE)
+			vcpu->arch.shadow_msrp |= MSRP_UCLEP;
+		if (prot_bitmap & MSR_DE)
+			vcpu->arch.shadow_msrp |= MSRP_DEP;
+		if (prot_bitmap & MSR_PMM)
+			vcpu->arch.shadow_msrp |= MSRP_PMMP;
+	} else {
+		if (prot_bitmap & MSR_UCLE)
+			vcpu->arch.shadow_msrp &= ~MSRP_UCLEP;
+		if (prot_bitmap & MSR_DE)
+			vcpu->arch.shadow_msrp &= ~MSRP_DEP;
+		if (prot_bitmap & MSR_PMM)
+			vcpu->arch.shadow_msrp &= ~MSRP_PMMP;
+	}
+#endif
+}
+
+int kvm_arch_vcpu_ioctl_set_guest_debug(struct kvm_vcpu *vcpu,
+					 struct kvm_guest_debug *dbg)
+{
+	struct debug_reg *dbg_reg;
+	int n, b = 0, w = 0;
+
+	if (!(dbg->control & KVM_GUESTDBG_ENABLE)) {
+		vcpu->arch.shadow_dbg_reg.dbcr0 = 0;
+		vcpu->guest_debug = 0;
+		kvm_guest_protect_msr(vcpu, MSR_DE, false);
+		return 0;
+	}
+
+	kvm_guest_protect_msr(vcpu, MSR_DE, true);
+	vcpu->guest_debug = dbg->control;
+	vcpu->arch.shadow_dbg_reg.dbcr0 = 0;
+	/* Set DBCR0_EDM in guest visible DBCR0 register. */
+	vcpu->arch.dbg_reg.dbcr0 = DBCR0_EDM;
+
+	if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP)
+		vcpu->arch.shadow_dbg_reg.dbcr0 |= DBCR0_IDM | DBCR0_IC;
+
+	/* Code below handles only HW breakpoints */
+	dbg_reg = &(vcpu->arch.shadow_dbg_reg);
+
+#ifdef CONFIG_KVM_BOOKE_HV
+	/*
+	 * On BookE-HV (e500mc) the guest is always executed with MSR.GS=1
+	 * DBCR1 and DBCR2 are set to trigger debug events when MSR.PR is 0
+	 */
+	dbg_reg->dbcr1 = 0;
+	dbg_reg->dbcr2 = 0;
+#else
+	/*
+	 * On BookE-PR (e500v2) the guest is always executed with MSR.PR=1
+	 * We set DBCR1 and DBCR2 to only trigger debug events when MSR.PR
+	 * is set.
+	 */
+	dbg_reg->dbcr1 = DBCR1_IAC1US | DBCR1_IAC2US | DBCR1_IAC3US |
+			  DBCR1_IAC4US;
+	dbg_reg->dbcr2 = DBCR2_DAC1US | DBCR2_DAC2US;
+#endif
+
+	if (!(vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP))
+		return 0;
+
+	for (n = 0; n < (KVMPPC_BOOKE_IAC_NUM + KVMPPC_BOOKE_DAC_NUM); n++) {
+		uint64_t addr = dbg->arch.bp[n].addr;
+		uint32_t type = dbg->arch.bp[n].type;
+
+		if (type == KVMPPC_DEBUG_NONE)
+			continue;
+
+		if (type & !(KVMPPC_DEBUG_WATCH_READ |
+			     KVMPPC_DEBUG_WATCH_WRITE |
+			     KVMPPC_DEBUG_BREAKPOINT))
+			return -EINVAL;
+
+		if (type & KVMPPC_DEBUG_BREAKPOINT) {
+			/* Setting H/W breakpoint */
+			if (kvmppc_booke_add_breakpoint(dbg_reg, addr, b++))
+				return -EINVAL;
+		} else {
+			/* Setting H/W watchpoint */
+			if (kvmppc_booke_add_watchpoint(dbg_reg, addr,
+							type, w++))
+				return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
 void kvmppc_booke_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 {
 	vcpu->cpu = smp_processor_id();
@@ -1701,6 +1902,9 @@ void kvmppc_booke_vcpu_put(struct kvm_vcpu *vcpu)
 {
 	current->thread.kvm_vcpu = NULL;
 	vcpu->cpu = -1;
+
+	/* Clear pending debug event in DBSR */
+	kvmppc_clear_dbsr();
 }
 
 int __init kvmppc_booke_init(void)
diff --git a/arch/powerpc/kvm/booke.h b/arch/powerpc/kvm/booke.h
index 5fd1ba693579..a1ff67d04022 100644
--- a/arch/powerpc/kvm/booke.h
+++ b/arch/powerpc/kvm/booke.h
@@ -129,4 +129,9 @@ static inline void kvmppc_save_guest_fp(struct kvm_vcpu *vcpu)
 		giveup_fpu(current);
 #endif
 }
+
+static inline void kvmppc_clear_dbsr(void)
+{
+	mtspr(SPRN_DBSR, mfspr(SPRN_DBSR));
+}
 #endif /* __KVM_BOOKE_H__ */
-- 
cgit 


From 178db620ee74ffb0ce7f8031ba8569c31b4193cd Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Mon, 7 Oct 2013 22:17:49 +0530
Subject: kvm: powerpc: book3s: remove kvmppc_handler_highmem label

This label is not used now.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/book3s_hv_interrupts.S | 3 ---
 arch/powerpc/kvm/book3s_interrupts.S    | 3 ---
 2 files changed, 6 deletions(-)

diff --git a/arch/powerpc/kvm/book3s_hv_interrupts.S b/arch/powerpc/kvm/book3s_hv_interrupts.S
index 37f1cc417ca0..928142c64cb0 100644
--- a/arch/powerpc/kvm/book3s_hv_interrupts.S
+++ b/arch/powerpc/kvm/book3s_hv_interrupts.S
@@ -158,9 +158,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
  * Interrupts are enabled again at this point.
  */
 
-.global kvmppc_handler_highmem
-kvmppc_handler_highmem:
-
 	/*
 	 * Register usage at this point:
 	 *
diff --git a/arch/powerpc/kvm/book3s_interrupts.S b/arch/powerpc/kvm/book3s_interrupts.S
index d4e30d8fa825..38166ab2f19c 100644
--- a/arch/powerpc/kvm/book3s_interrupts.S
+++ b/arch/powerpc/kvm/book3s_interrupts.S
@@ -121,9 +121,6 @@ kvm_start_lightweight:
  *
  */
 
-.global kvmppc_handler_highmem
-kvmppc_handler_highmem:
-
 	/*
 	 * Register usage at this point:
 	 *
-- 
cgit 


From 066212e02a8fb4ae797fae1d7cede5807ba398e1 Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Mon, 7 Oct 2013 22:17:50 +0530
Subject: kvm: powerpc: book3s: move book3s_64_vio_hv.c into the main kernel
 binary

Since the code in book3s_64_vio_hv.c is called from real mode with HV
KVM, and therefore has to be built into the main kernel binary, this
makes it always built-in rather than part of the KVM module.  It gets
called from the KVM module by PR KVM, so this adds an EXPORT_SYMBOL_GPL().

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/Makefile           | 12 ++++++++----
 arch/powerpc/kvm/book3s_64_vio_hv.c |  1 +
 2 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/kvm/Makefile b/arch/powerpc/kvm/Makefile
index 6646c952c5e3..104e8dcf4336 100644
--- a/arch/powerpc/kvm/Makefile
+++ b/arch/powerpc/kvm/Makefile
@@ -53,32 +53,36 @@ kvm-e500mc-objs := \
 	e500_emulate.o
 kvm-objs-$(CONFIG_KVM_E500MC) := $(kvm-e500mc-objs)
 
+kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_HANDLER) := \
+	book3s_64_vio_hv.o
+
 kvm-book3s_64-objs-$(CONFIG_KVM_BOOK3S_64_PR) := \
 	$(KVM)/coalesced_mmio.o \
 	fpu.o \
 	book3s_paired_singles.o \
 	book3s_pr.o \
 	book3s_pr_papr.o \
-	book3s_64_vio_hv.o \
 	book3s_emulate.o \
 	book3s_interrupts.o \
 	book3s_mmu_hpte.o \
 	book3s_64_mmu_host.o \
 	book3s_64_mmu.o \
 	book3s_32_mmu.o
-kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_PR) := \
+
+kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_PR) += \
 	book3s_rmhandlers.o
 
 kvm-book3s_64-objs-$(CONFIG_KVM_BOOK3S_64_HV) := \
 	book3s_hv.o \
 	book3s_hv_interrupts.o \
 	book3s_64_mmu_hv.o
+
 kvm-book3s_64-builtin-xics-objs-$(CONFIG_KVM_XICS) := \
 	book3s_hv_rm_xics.o
-kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_HV) := \
+
+kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_HV) += \
 	book3s_hv_rmhandlers.o \
 	book3s_hv_rm_mmu.o \
-	book3s_64_vio_hv.o \
 	book3s_hv_ras.o \
 	book3s_hv_builtin.o \
 	book3s_hv_cma.o \
diff --git a/arch/powerpc/kvm/book3s_64_vio_hv.c b/arch/powerpc/kvm/book3s_64_vio_hv.c
index 30c2f3b134c6..2c25f5412bdb 100644
--- a/arch/powerpc/kvm/book3s_64_vio_hv.c
+++ b/arch/powerpc/kvm/book3s_64_vio_hv.c
@@ -74,3 +74,4 @@ long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
 	/* Didn't find the liobn, punt it to userspace */
 	return H_TOO_HARD;
 }
+EXPORT_SYMBOL_GPL(kvmppc_h_put_tce);
-- 
cgit 


From 7aa79938f7d76f5865d0b2a2d9bbe2337560261f Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Date: Mon, 7 Oct 2013 22:17:51 +0530
Subject: kvm: powerpc: book3s: pr: Rename KVM_BOOK3S_PR to
 KVM_BOOK3S_PR_POSSIBLE

With later patches supporting PR kvm as a kernel module, the changes
that has to be built into the main kernel binary to enable PR KVM module
is now selected via KVM_BOOK3S_PR_POSSIBLE

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/exception-64s.h |  2 +-
 arch/powerpc/include/asm/kvm_book3s.h    |  4 ++--
 arch/powerpc/include/asm/kvm_book3s_64.h |  2 +-
 arch/powerpc/include/asm/kvm_host.h      |  2 +-
 arch/powerpc/include/asm/paca.h          |  2 +-
 arch/powerpc/kernel/asm-offsets.c        |  2 +-
 arch/powerpc/kernel/exceptions-64s.S     |  2 +-
 arch/powerpc/kvm/Kconfig                 |  6 +++---
 arch/powerpc/kvm/trace.h                 | 10 +++++-----
 9 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h
index 402c1c466509..a22c9854a633 100644
--- a/arch/powerpc/include/asm/exception-64s.h
+++ b/arch/powerpc/include/asm/exception-64s.h
@@ -244,7 +244,7 @@ do_kvm_##n:								\
 #define KVM_HANDLER_SKIP(area, h, n)
 #endif
 
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 #define KVMTEST_PR(n)			__KVMTEST(n)
 #define KVM_HANDLER_PR(area, h, n)	__KVM_HANDLER(area, h, n)
 #define KVM_HANDLER_PR_SKIP(area, h, n)	__KVM_HANDLER_SKIP(area, h, n)
diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index 0ec00f4fef91..5c07d10e3c41 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -304,7 +304,7 @@ static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
 	return vcpu->arch.fault_dar;
 }
 
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 
 static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
 {
@@ -339,7 +339,7 @@ static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
 
 	return crit;
 }
-#else /* CONFIG_KVM_BOOK3S_PR */
+#else /* CONFIG_KVM_BOOK3S_PR_POSSIBLE */
 
 static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
 {
diff --git a/arch/powerpc/include/asm/kvm_book3s_64.h b/arch/powerpc/include/asm/kvm_book3s_64.h
index 86d638a3b359..e6ee7fd32d12 100644
--- a/arch/powerpc/include/asm/kvm_book3s_64.h
+++ b/arch/powerpc/include/asm/kvm_book3s_64.h
@@ -20,7 +20,7 @@
 #ifndef __ASM_KVM_BOOK3S_64_H__
 #define __ASM_KVM_BOOK3S_64_H__
 
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 static inline struct kvmppc_book3s_shadow_vcpu *svcpu_get(struct kvm_vcpu *vcpu)
 {
 	preempt_disable();
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 4959ff1b5376..9e9f689106e2 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -257,7 +257,7 @@ struct kvm_arch {
 	struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
 	int hpt_cma_alloc;
 #endif /* CONFIG_KVM_BOOK3S_64_HV */
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 	struct mutex hpt_mutex;
 #endif
 #ifdef CONFIG_PPC_BOOK3S_64
diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h
index a5954cebbc55..b6ea9e068c13 100644
--- a/arch/powerpc/include/asm/paca.h
+++ b/arch/powerpc/include/asm/paca.h
@@ -166,7 +166,7 @@ struct paca_struct {
 	struct dtl_entry *dtl_curr;	/* pointer corresponding to dtl_ridx */
 
 #ifdef CONFIG_KVM_BOOK3S_HANDLER
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 	/* We use this to store guest state in */
 	struct kvmppc_book3s_shadow_vcpu shadow_vcpu;
 #endif
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 95ba8095fc4a..29796559c2fb 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -533,7 +533,7 @@ int main(void)
 	DEFINE(VCPU_SLB_SIZE, sizeof(struct kvmppc_slb));
 
 #ifdef CONFIG_PPC_BOOK3S_64
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 	DEFINE(PACA_SVCPU, offsetof(struct paca_struct, shadow_vcpu));
 # define SVCPU_FIELD(x, f)	DEFINE(x, offsetof(struct paca_struct, shadow_vcpu.f))
 #else
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 2a273bed1ec8..3d1c42b03c89 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -425,7 +425,7 @@ data_access_check_stab:
 	mfspr	r9,SPRN_DSISR
 	srdi	r10,r10,60
 	rlwimi	r10,r9,16,0x20
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 	lbz	r9,HSTATE_IN_GUEST(r13)
 	rlwimi	r10,r9,8,0x300
 #endif
diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig
index ffaef2cb101a..d0665f231e6f 100644
--- a/arch/powerpc/kvm/Kconfig
+++ b/arch/powerpc/kvm/Kconfig
@@ -34,7 +34,7 @@ config KVM_BOOK3S_64_HANDLER
 	bool
 	select KVM_BOOK3S_HANDLER
 
-config KVM_BOOK3S_PR
+config KVM_BOOK3S_PR_POSSIBLE
 	bool
 	select KVM_MMIO
 	select MMU_NOTIFIER
@@ -44,7 +44,7 @@ config KVM_BOOK3S_32
 	depends on PPC_BOOK3S_32 && !SMP && !PTE_64BIT
 	select KVM
 	select KVM_BOOK3S_32_HANDLER
-	select KVM_BOOK3S_PR
+	select KVM_BOOK3S_PR_POSSIBLE
 	---help---
 	  Support running unmodified book3s_32 guest kernels
 	  in virtual machines on book3s_32 host processors.
@@ -91,7 +91,7 @@ config KVM_BOOK3S_64_HV
 config KVM_BOOK3S_64_PR
 	def_bool y
 	depends on KVM_BOOK3S_64 && !KVM_BOOK3S_64_HV
-	select KVM_BOOK3S_PR
+	select KVM_BOOK3S_PR_POSSIBLE
 
 config KVM_BOOKE_HV
 	bool
diff --git a/arch/powerpc/kvm/trace.h b/arch/powerpc/kvm/trace.h
index a088e9a8c103..9e8368edf371 100644
--- a/arch/powerpc/kvm/trace.h
+++ b/arch/powerpc/kvm/trace.h
@@ -94,7 +94,7 @@ TRACE_EVENT(kvm_exit,
 		__field(	unsigned long,	pc		)
 		__field(	unsigned long,	msr		)
 		__field(	unsigned long,	dar		)
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 		__field(	unsigned long,	srr1		)
 #endif
 		__field(	unsigned long,	last_inst	)
@@ -105,7 +105,7 @@ TRACE_EVENT(kvm_exit,
 		__entry->pc		= kvmppc_get_pc(vcpu);
 		__entry->dar		= kvmppc_get_fault_dar(vcpu);
 		__entry->msr		= vcpu->arch.shared->msr;
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 		__entry->srr1		= vcpu->arch.shadow_srr1;
 #endif
 		__entry->last_inst	= vcpu->arch.last_inst;
@@ -115,7 +115,7 @@ TRACE_EVENT(kvm_exit,
 		" | pc=0x%lx"
 		" | msr=0x%lx"
 		" | dar=0x%lx"
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 		" | srr1=0x%lx"
 #endif
 		" | last_inst=0x%lx"
@@ -124,7 +124,7 @@ TRACE_EVENT(kvm_exit,
 		__entry->pc,
 		__entry->msr,
 		__entry->dar,
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 		__entry->srr1,
 #endif
 		__entry->last_inst
@@ -236,7 +236,7 @@ TRACE_EVENT(kvm_check_requests,
  *                         Book3S trace points                           *
  *************************************************************************/
 
-#ifdef CONFIG_KVM_BOOK3S_PR
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 
 TRACE_EVENT(kvm_book3s_reenter,
 	TP_PROTO(int r, struct kvm_vcpu *vcpu),
-- 
cgit 


From 9975f5e3692d320b4259a4d2edd8a979adb1e535 Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Date: Mon, 7 Oct 2013 22:17:52 +0530
Subject: kvm: powerpc: book3s: Add a new config variable
 CONFIG_KVM_BOOK3S_HV_POSSIBLE

This help ups to select the relevant code in the kernel code
when we later move HV and PR bits as seperate modules. The patch
also makes the config options for PR KVM selectable

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/kvm_book3s.h     |  2 --
 arch/powerpc/include/asm/kvm_book3s_64.h  |  6 +++---
 arch/powerpc/include/asm/kvm_book3s_asm.h |  2 +-
 arch/powerpc/include/asm/kvm_host.h       | 10 +++++-----
 arch/powerpc/include/asm/kvm_ppc.h        |  2 +-
 arch/powerpc/kernel/asm-offsets.c         |  8 ++++----
 arch/powerpc/kernel/idle_power7.S         |  2 +-
 arch/powerpc/kvm/Kconfig                  | 18 +++++++++++++++++-
 arch/powerpc/kvm/Makefile                 | 12 ++++++++----
 arch/powerpc/kvm/book3s_exports.c         |  5 +++--
 10 files changed, 43 insertions(+), 24 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index 5c07d10e3c41..99ef8711e906 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -199,8 +199,6 @@ static inline struct kvmppc_vcpu_book3s *to_book3s(struct kvm_vcpu *vcpu)
 	return vcpu->arch.book3s;
 }
 
-extern void kvm_return_point(void);
-
 /* Also add subarch specific defines */
 
 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
diff --git a/arch/powerpc/include/asm/kvm_book3s_64.h b/arch/powerpc/include/asm/kvm_book3s_64.h
index e6ee7fd32d12..bf0fa8b0a883 100644
--- a/arch/powerpc/include/asm/kvm_book3s_64.h
+++ b/arch/powerpc/include/asm/kvm_book3s_64.h
@@ -35,7 +35,7 @@ static inline void svcpu_put(struct kvmppc_book3s_shadow_vcpu *svcpu)
 
 #define SPAPR_TCE_SHIFT		12
 
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 #define KVM_DEFAULT_HPT_ORDER	24	/* 16MB HPT by default */
 extern unsigned long kvm_rma_pages;
 #endif
@@ -278,7 +278,7 @@ static inline int is_vrma_hpte(unsigned long hpte_v)
 		(HPTE_V_1TB_SEG | (VRMA_VSID << (40 - 16)));
 }
 
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 /*
  * Note modification of an HPTE; set the HPTE modified bit
  * if anyone is interested.
@@ -289,6 +289,6 @@ static inline void note_hpte_modification(struct kvm *kvm,
 	if (atomic_read(&kvm->arch.hpte_mod_interest))
 		rev->guest_rpte |= HPTE_GR_MODIFIED;
 }
-#endif /* CONFIG_KVM_BOOK3S_64_HV */
+#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 
 #endif /* __ASM_KVM_BOOK3S_64_H__ */
diff --git a/arch/powerpc/include/asm/kvm_book3s_asm.h b/arch/powerpc/include/asm/kvm_book3s_asm.h
index 62737113c2b9..0bd9348a4db9 100644
--- a/arch/powerpc/include/asm/kvm_book3s_asm.h
+++ b/arch/powerpc/include/asm/kvm_book3s_asm.h
@@ -83,7 +83,7 @@ struct kvmppc_host_state {
 	u8 restore_hid5;
 	u8 napping;
 
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 	u8 hwthread_req;
 	u8 hwthread_state;
 	u8 host_ipi;
diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 9e9f689106e2..61ce4dca45d3 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -224,15 +224,15 @@ struct revmap_entry {
 #define KVMPPC_GOT_PAGE		0x80
 
 struct kvm_arch_memory_slot {
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 	unsigned long *rmap;
 	unsigned long *slot_phys;
-#endif /* CONFIG_KVM_BOOK3S_64_HV */
+#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 };
 
 struct kvm_arch {
 	unsigned int lpid;
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 	unsigned long hpt_virt;
 	struct revmap_entry *revmap;
 	unsigned int host_lpid;
@@ -256,7 +256,7 @@ struct kvm_arch {
 	cpumask_t need_tlb_flush;
 	struct kvmppc_vcore *vcores[KVM_MAX_VCORES];
 	int hpt_cma_alloc;
-#endif /* CONFIG_KVM_BOOK3S_64_HV */
+#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 #ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 	struct mutex hpt_mutex;
 #endif
@@ -592,7 +592,7 @@ struct kvm_vcpu_arch {
 	struct kvmppc_icp *icp; /* XICS presentation controller */
 #endif
 
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 	struct kvm_vcpu_arch_shared shregs;
 
 	unsigned long pgfault_addr;
diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h
index b15554a26c20..1823f38906c6 100644
--- a/arch/powerpc/include/asm/kvm_ppc.h
+++ b/arch/powerpc/include/asm/kvm_ppc.h
@@ -260,7 +260,7 @@ void kvmppc_set_pid(struct kvm_vcpu *vcpu, u32 pid);
 
 struct openpic;
 
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 extern void kvm_cma_reserve(void) __init;
 static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
 {
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 29796559c2fb..1fbb2b63195c 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -445,7 +445,7 @@ int main(void)
 	DEFINE(VCPU_LR, offsetof(struct kvm_vcpu, arch.lr));
 	DEFINE(VCPU_CR, offsetof(struct kvm_vcpu, arch.cr));
 	DEFINE(VCPU_PC, offsetof(struct kvm_vcpu, arch.pc));
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 	DEFINE(VCPU_MSR, offsetof(struct kvm_vcpu, arch.shregs.msr));
 	DEFINE(VCPU_SRR0, offsetof(struct kvm_vcpu, arch.shregs.srr0));
 	DEFINE(VCPU_SRR1, offsetof(struct kvm_vcpu, arch.shregs.srr1));
@@ -476,7 +476,7 @@ int main(void)
 	DEFINE(KVM_LPID, offsetof(struct kvm, arch.lpid));
 
 	/* book3s */
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 	DEFINE(KVM_SDR1, offsetof(struct kvm, arch.sdr1));
 	DEFINE(KVM_HOST_LPID, offsetof(struct kvm, arch.host_lpid));
 	DEFINE(KVM_HOST_LPCR, offsetof(struct kvm, arch.host_lpcr));
@@ -586,7 +586,7 @@ int main(void)
 	HSTATE_FIELD(HSTATE_RESTORE_HID5, restore_hid5);
 	HSTATE_FIELD(HSTATE_NAPPING, napping);
 
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 	HSTATE_FIELD(HSTATE_HWTHREAD_REQ, hwthread_req);
 	HSTATE_FIELD(HSTATE_HWTHREAD_STATE, hwthread_state);
 	HSTATE_FIELD(HSTATE_KVM_VCPU, kvm_vcpu);
@@ -602,7 +602,7 @@ int main(void)
 	HSTATE_FIELD(HSTATE_DABR, dabr);
 	HSTATE_FIELD(HSTATE_DECEXP, dec_expires);
 	DEFINE(IPI_PRIORITY, IPI_PRIORITY);
-#endif /* CONFIG_KVM_BOOK3S_64_HV */
+#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 
 #ifdef CONFIG_PPC_BOOK3S_64
 	HSTATE_FIELD(HSTATE_CFAR, cfar);
diff --git a/arch/powerpc/kernel/idle_power7.S b/arch/powerpc/kernel/idle_power7.S
index e11863f4e595..847e40e62fce 100644
--- a/arch/powerpc/kernel/idle_power7.S
+++ b/arch/powerpc/kernel/idle_power7.S
@@ -84,7 +84,7 @@ _GLOBAL(power7_nap)
 	std	r9,_MSR(r1)
 	std	r1,PACAR1(r13)
 
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 	/* Tell KVM we're napping */
 	li	r4,KVM_HWTHREAD_IN_NAP
 	stb	r4,HSTATE_HWTHREAD_STATE(r13)
diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig
index d0665f231e6f..a96d7c32f785 100644
--- a/arch/powerpc/kvm/Kconfig
+++ b/arch/powerpc/kvm/Kconfig
@@ -39,6 +39,9 @@ config KVM_BOOK3S_PR_POSSIBLE
 	select KVM_MMIO
 	select MMU_NOTIFIER
 
+config KVM_BOOK3S_HV_POSSIBLE
+	bool
+
 config KVM_BOOK3S_32
 	tristate "KVM support for PowerPC book3s_32 processors"
 	depends on PPC_BOOK3S_32 && !SMP && !PTE_64BIT
@@ -59,6 +62,7 @@ config KVM_BOOK3S_64
 	depends on PPC_BOOK3S_64
 	select KVM_BOOK3S_64_HANDLER
 	select KVM
+	select KVM_BOOK3S_PR_POSSIBLE if !KVM_BOOK3S_HV_POSSIBLE
 	---help---
 	  Support running unmodified book3s_64 and book3s_32 guest kernels
 	  in virtual machines on book3s_64 host processors.
@@ -71,6 +75,7 @@ config KVM_BOOK3S_64
 config KVM_BOOK3S_64_HV
 	bool "KVM support for POWER7 and PPC970 using hypervisor mode in host"
 	depends on KVM_BOOK3S_64
+	select KVM_BOOK3S_HV_POSSIBLE
 	select MMU_NOTIFIER
 	select CMA
 	---help---
@@ -89,9 +94,20 @@ config KVM_BOOK3S_64_HV
 	  If unsure, say N.
 
 config KVM_BOOK3S_64_PR
-	def_bool y
+	bool "KVM support without using hypervisor mode in host"
 	depends on KVM_BOOK3S_64 && !KVM_BOOK3S_64_HV
 	select KVM_BOOK3S_PR_POSSIBLE
+	---help---
+	  Support running guest kernels in virtual machines on processors
+	  without using hypervisor mode in the host, by running the
+	  guest in user mode (problem state) and emulating all
+	  privileged instructions and registers.
+
+	  This is not as fast as using hypervisor mode, but works on
+	  machines where hypervisor mode is not available or not usable,
+	  and can emulate processors that are different from the host
+	  processor, including emulating 32-bit processors on a 64-bit
+	  host.
 
 config KVM_BOOKE_HV
 	bool
diff --git a/arch/powerpc/kvm/Makefile b/arch/powerpc/kvm/Makefile
index 104e8dcf4336..fa17b337bb96 100644
--- a/arch/powerpc/kvm/Makefile
+++ b/arch/powerpc/kvm/Makefile
@@ -57,7 +57,6 @@ kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_HANDLER) := \
 	book3s_64_vio_hv.o
 
 kvm-book3s_64-objs-$(CONFIG_KVM_BOOK3S_64_PR) := \
-	$(KVM)/coalesced_mmio.o \
 	fpu.o \
 	book3s_paired_singles.o \
 	book3s_pr.o \
@@ -69,10 +68,15 @@ kvm-book3s_64-objs-$(CONFIG_KVM_BOOK3S_64_PR) := \
 	book3s_64_mmu.o \
 	book3s_32_mmu.o
 
-kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_PR) += \
+ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
+kvm-book3s_64-module-objs := \
+	$(KVM)/coalesced_mmio.o
+
+kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_HANDLER) += \
 	book3s_rmhandlers.o
+endif
 
-kvm-book3s_64-objs-$(CONFIG_KVM_BOOK3S_64_HV) := \
+kvm-book3s_64-objs-$(CONFIG_KVM_BOOK3S_64_HV)  += \
 	book3s_hv.o \
 	book3s_hv_interrupts.o \
 	book3s_64_mmu_hv.o
@@ -91,7 +95,7 @@ kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_HV) += \
 kvm-book3s_64-objs-$(CONFIG_KVM_XICS) += \
 	book3s_xics.o
 
-kvm-book3s_64-module-objs := \
+kvm-book3s_64-module-objs += \
 	$(KVM)/kvm_main.o \
 	$(KVM)/eventfd.o \
 	powerpc.o \
diff --git a/arch/powerpc/kvm/book3s_exports.c b/arch/powerpc/kvm/book3s_exports.c
index 7057a02f0906..852989a9bad3 100644
--- a/arch/powerpc/kvm/book3s_exports.c
+++ b/arch/powerpc/kvm/book3s_exports.c
@@ -20,9 +20,10 @@
 #include <linux/export.h>
 #include <asm/kvm_book3s.h>
 
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 EXPORT_SYMBOL_GPL(kvmppc_hv_entry_trampoline);
-#else
+#endif
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
 EXPORT_SYMBOL_GPL(kvmppc_entry_trampoline);
 EXPORT_SYMBOL_GPL(kvmppc_load_up_fpu);
 #ifdef CONFIG_ALTIVEC
-- 
cgit 


From 3a167beac07cba597856c12b87638a06b0d53db7 Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Date: Mon, 7 Oct 2013 22:17:53 +0530
Subject: kvm: powerpc: Add kvmppc_ops callback

This patch add a new callback kvmppc_ops. This will help us in enabling
both HV and PR KVM together in the same kernel. The actual change to
enable them together is done in the later patch in the series.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
[agraf: squash in booke changes]
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/kvm_book3s.h |   1 -
 arch/powerpc/include/asm/kvm_ppc.h    |  89 ++++++++++----
 arch/powerpc/kernel/exceptions-64s.S  |   2 +-
 arch/powerpc/kvm/44x.c                |  55 ++++++---
 arch/powerpc/kvm/44x_emulate.c        |   8 +-
 arch/powerpc/kvm/44x_tlb.c            |   2 +-
 arch/powerpc/kvm/book3s.c             | 145 +++++++++++++++++++++-
 arch/powerpc/kvm/book3s.h             |  32 +++++
 arch/powerpc/kvm/book3s_32_mmu_host.c |   2 +-
 arch/powerpc/kvm/book3s_64_mmu_host.c |   2 +-
 arch/powerpc/kvm/book3s_64_mmu_hv.c   |  17 ++-
 arch/powerpc/kvm/book3s_emulate.c     |   8 +-
 arch/powerpc/kvm/book3s_hv.c          | 220 ++++++++++++++++++++++++----------
 arch/powerpc/kvm/book3s_interrupts.S  |   2 +-
 arch/powerpc/kvm/book3s_pr.c          | 194 +++++++++++++++++++-----------
 arch/powerpc/kvm/book3s_xics.c        |   4 +-
 arch/powerpc/kvm/booke.c              |  47 +++++++-
 arch/powerpc/kvm/booke.h              |  24 ++++
 arch/powerpc/kvm/e500.c               |  53 +++++---
 arch/powerpc/kvm/e500_emulate.c       |   8 +-
 arch/powerpc/kvm/e500_mmu.c           |   2 +-
 arch/powerpc/kvm/e500mc.c             |  54 ++++++---
 arch/powerpc/kvm/emulate.c            |   6 +-
 arch/powerpc/kvm/powerpc.c            |  58 +++------
 24 files changed, 748 insertions(+), 287 deletions(-)
 create mode 100644 arch/powerpc/kvm/book3s.h

diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index 99ef8711e906..315a5d692417 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -124,7 +124,6 @@ extern void kvmppc_mmu_pte_flush(struct kvm_vcpu *vcpu, ulong ea, ulong ea_mask)
 extern void kvmppc_mmu_pte_vflush(struct kvm_vcpu *vcpu, u64 vp, u64 vp_mask);
 extern void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end);
 extern void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 new_msr);
-extern void kvmppc_set_pvr(struct kvm_vcpu *vcpu, u32 pvr);
 extern void kvmppc_mmu_book3s_64_init(struct kvm_vcpu *vcpu);
 extern void kvmppc_mmu_book3s_32_init(struct kvm_vcpu *vcpu);
 extern void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu);
diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h
index 1823f38906c6..326033c99385 100644
--- a/arch/powerpc/include/asm/kvm_ppc.h
+++ b/arch/powerpc/include/asm/kvm_ppc.h
@@ -106,13 +106,6 @@ extern void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
                                        struct kvm_interrupt *irq);
 extern void kvmppc_core_dequeue_external(struct kvm_vcpu *vcpu);
 extern void kvmppc_core_flush_tlb(struct kvm_vcpu *vcpu);
-
-extern int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
-                                  unsigned int op, int *advance);
-extern int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn,
-				     ulong val);
-extern int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn,
-				     ulong *val);
 extern int kvmppc_core_check_requests(struct kvm_vcpu *vcpu);
 
 extern int kvmppc_booke_init(void);
@@ -135,8 +128,6 @@ extern long kvm_vm_ioctl_create_spapr_tce(struct kvm *kvm,
 				struct kvm_create_spapr_tce *args);
 extern long kvmppc_h_put_tce(struct kvm_vcpu *vcpu, unsigned long liobn,
 			     unsigned long ioba, unsigned long tce);
-extern long kvm_vm_ioctl_allocate_rma(struct kvm *kvm,
-				struct kvm_allocate_rma *rma);
 extern struct kvm_rma_info *kvm_alloc_rma(void);
 extern void kvm_release_rma(struct kvm_rma_info *ri);
 extern struct page *kvm_alloc_hpt(unsigned long nr_pages);
@@ -177,6 +168,66 @@ extern int kvmppc_xics_get_xive(struct kvm *kvm, u32 irq, u32 *server,
 extern int kvmppc_xics_int_on(struct kvm *kvm, u32 irq);
 extern int kvmppc_xics_int_off(struct kvm *kvm, u32 irq);
 
+union kvmppc_one_reg {
+	u32	wval;
+	u64	dval;
+	vector128 vval;
+	u64	vsxval[2];
+	struct {
+		u64	addr;
+		u64	length;
+	}	vpaval;
+};
+
+struct kvmppc_ops {
+	int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
+	int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
+	int (*get_one_reg)(struct kvm_vcpu *vcpu, u64 id,
+			   union kvmppc_one_reg *val);
+	int (*set_one_reg)(struct kvm_vcpu *vcpu, u64 id,
+			   union kvmppc_one_reg *val);
+	void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
+	void (*vcpu_put)(struct kvm_vcpu *vcpu);
+	void (*set_msr)(struct kvm_vcpu *vcpu, u64 msr);
+	int (*vcpu_run)(struct kvm_run *run, struct kvm_vcpu *vcpu);
+	struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned int id);
+	void (*vcpu_free)(struct kvm_vcpu *vcpu);
+	int (*check_requests)(struct kvm_vcpu *vcpu);
+	int (*get_dirty_log)(struct kvm *kvm, struct kvm_dirty_log *log);
+	void (*flush_memslot)(struct kvm *kvm, struct kvm_memory_slot *memslot);
+	int (*prepare_memory_region)(struct kvm *kvm,
+				     struct kvm_memory_slot *memslot,
+				     struct kvm_userspace_memory_region *mem);
+	void (*commit_memory_region)(struct kvm *kvm,
+				     struct kvm_userspace_memory_region *mem,
+				     const struct kvm_memory_slot *old);
+	int (*unmap_hva)(struct kvm *kvm, unsigned long hva);
+	int (*unmap_hva_range)(struct kvm *kvm, unsigned long start,
+			   unsigned long end);
+	int (*age_hva)(struct kvm *kvm, unsigned long hva);
+	int (*test_age_hva)(struct kvm *kvm, unsigned long hva);
+	void (*set_spte_hva)(struct kvm *kvm, unsigned long hva, pte_t pte);
+	void (*mmu_destroy)(struct kvm_vcpu *vcpu);
+	void (*free_memslot)(struct kvm_memory_slot *free,
+			     struct kvm_memory_slot *dont);
+	int (*create_memslot)(struct kvm_memory_slot *slot,
+			      unsigned long npages);
+	int (*init_vm)(struct kvm *kvm);
+	void (*destroy_vm)(struct kvm *kvm);
+	int (*check_processor_compat)(void);
+	int (*get_smmu_info)(struct kvm *kvm, struct kvm_ppc_smmu_info *info);
+	int (*emulate_op)(struct kvm_run *run, struct kvm_vcpu *vcpu,
+			  unsigned int inst, int *advance);
+	int (*emulate_mtspr)(struct kvm_vcpu *vcpu, int sprn, ulong spr_val);
+	int (*emulate_mfspr)(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val);
+	void (*fast_vcpu_kick)(struct kvm_vcpu *vcpu);
+	long (*arch_vm_ioctl)(struct file *filp, unsigned int ioctl,
+			      unsigned long arg);
+
+};
+
+extern struct kvmppc_ops *kvmppc_ops;
+
 /*
  * Cuts out inst bits with ordering according to spec.
  * That means the leftmost bit is zero. All given bits are included.
@@ -210,17 +261,6 @@ static inline u32 kvmppc_set_field(u64 inst, int msb, int lsb, int value)
 	return r;
 }
 
-union kvmppc_one_reg {
-	u32	wval;
-	u64	dval;
-	vector128 vval;
-	u64	vsxval[2];
-	struct {
-		u64	addr;
-		u64	length;
-	}	vpaval;
-};
-
 #define one_reg_size(id)	\
 	(1ul << (((id) & KVM_REG_SIZE_MASK) >> KVM_REG_SIZE_SHIFT))
 
@@ -245,10 +285,10 @@ union kvmppc_one_reg {
 	__v;					\
 })
 
-void kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
+int kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
 int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
 
-void kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
+int kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
 int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
 
 int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg);
@@ -281,7 +321,10 @@ static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
 	paca[cpu].kvm_hstate.host_ipi = host_ipi;
 }
 
-extern void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu);
+static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
+{
+	kvmppc_ops->fast_vcpu_kick(vcpu);
+}
 
 #else
 static inline void __init kvm_cma_reserve(void)
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 3d1c42b03c89..9f905e40922e 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -126,7 +126,7 @@ BEGIN_FTR_SECTION
 	bgt	cr1,.
 	GET_PACA(r13)
 
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 	li	r0,KVM_HWTHREAD_IN_KERNEL
 	stb	r0,HSTATE_HWTHREAD_STATE(r13)
 	/* Order setting hwthread_state vs. testing hwthread_req */
diff --git a/arch/powerpc/kvm/44x.c b/arch/powerpc/kvm/44x.c
index 2f5c6b6d6877..a765bcd74fbb 100644
--- a/arch/powerpc/kvm/44x.c
+++ b/arch/powerpc/kvm/44x.c
@@ -31,13 +31,13 @@
 #include "44x_tlb.h"
 #include "booke.h"
 
-void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
+static void kvmppc_core_vcpu_load_44x(struct kvm_vcpu *vcpu, int cpu)
 {
 	kvmppc_booke_vcpu_load(vcpu, cpu);
 	kvmppc_44x_tlb_load(vcpu);
 }
 
-void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
+static void kvmppc_core_vcpu_put_44x(struct kvm_vcpu *vcpu)
 {
 	kvmppc_44x_tlb_put(vcpu);
 	kvmppc_booke_vcpu_put(vcpu);
@@ -114,29 +114,32 @@ int kvmppc_core_vcpu_translate(struct kvm_vcpu *vcpu,
 	return 0;
 }
 
-void kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
+static int kvmppc_core_get_sregs_44x(struct kvm_vcpu *vcpu,
+				      struct kvm_sregs *sregs)
 {
-	kvmppc_get_sregs_ivor(vcpu, sregs);
+	return kvmppc_get_sregs_ivor(vcpu, sregs);
 }
 
-int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
+static int kvmppc_core_set_sregs_44x(struct kvm_vcpu *vcpu,
+				     struct kvm_sregs *sregs)
 {
 	return kvmppc_set_sregs_ivor(vcpu, sregs);
 }
 
-int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id,
-			union kvmppc_one_reg *val)
+static int kvmppc_get_one_reg_44x(struct kvm_vcpu *vcpu, u64 id,
+				  union kvmppc_one_reg *val)
 {
 	return -EINVAL;
 }
 
-int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id,
-		       union kvmppc_one_reg *val)
+static int kvmppc_set_one_reg_44x(struct kvm_vcpu *vcpu, u64 id,
+				  union kvmppc_one_reg *val)
 {
 	return -EINVAL;
 }
 
-struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
+static struct kvm_vcpu *kvmppc_core_vcpu_create_44x(struct kvm *kvm,
+						    unsigned int id)
 {
 	struct kvmppc_vcpu_44x *vcpu_44x;
 	struct kvm_vcpu *vcpu;
@@ -167,7 +170,7 @@ out:
 	return ERR_PTR(err);
 }
 
-void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
+static void kvmppc_core_vcpu_free_44x(struct kvm_vcpu *vcpu)
 {
 	struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
 
@@ -176,24 +179,46 @@ void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
 	kmem_cache_free(kvm_vcpu_cache, vcpu_44x);
 }
 
-int kvmppc_core_init_vm(struct kvm *kvm)
+static int kvmppc_core_init_vm_44x(struct kvm *kvm)
 {
 	return 0;
 }
 
-void kvmppc_core_destroy_vm(struct kvm *kvm)
+static void kvmppc_core_destroy_vm_44x(struct kvm *kvm)
 {
 }
 
+static struct kvmppc_ops kvm_ops_44x = {
+	.get_sregs = kvmppc_core_get_sregs_44x,
+	.set_sregs = kvmppc_core_set_sregs_44x,
+	.get_one_reg = kvmppc_get_one_reg_44x,
+	.set_one_reg = kvmppc_set_one_reg_44x,
+	.vcpu_load   = kvmppc_core_vcpu_load_44x,
+	.vcpu_put    = kvmppc_core_vcpu_put_44x,
+	.vcpu_create = kvmppc_core_vcpu_create_44x,
+	.vcpu_free   = kvmppc_core_vcpu_free_44x,
+	.mmu_destroy  = kvmppc_mmu_destroy_44x,
+	.init_vm = kvmppc_core_init_vm_44x,
+	.destroy_vm = kvmppc_core_destroy_vm_44x,
+	.emulate_op = kvmppc_core_emulate_op_44x,
+	.emulate_mtspr = kvmppc_core_emulate_mtspr_44x,
+	.emulate_mfspr = kvmppc_core_emulate_mfspr_44x,
+};
+
 static int __init kvmppc_44x_init(void)
 {
 	int r;
 
 	r = kvmppc_booke_init();
 	if (r)
-		return r;
+		goto err_out;
 
-	return kvm_init(NULL, sizeof(struct kvmppc_vcpu_44x), 0, THIS_MODULE);
+	r = kvm_init(&kvm_ops_44x, sizeof(struct kvmppc_vcpu_44x),
+		     0, THIS_MODULE);
+	if (r)
+		goto err_out;
+err_out:
+	return r;
 }
 
 static void __exit kvmppc_44x_exit(void)
diff --git a/arch/powerpc/kvm/44x_emulate.c b/arch/powerpc/kvm/44x_emulate.c
index 35ec0a8547da..92c9ab4bcfec 100644
--- a/arch/powerpc/kvm/44x_emulate.c
+++ b/arch/powerpc/kvm/44x_emulate.c
@@ -91,8 +91,8 @@ static int emulate_mfdcr(struct kvm_vcpu *vcpu, int rt, int dcrn)
 	return EMULATE_DONE;
 }
 
-int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
-                           unsigned int inst, int *advance)
+int kvmppc_core_emulate_op_44x(struct kvm_run *run, struct kvm_vcpu *vcpu,
+			       unsigned int inst, int *advance)
 {
 	int emulated = EMULATE_DONE;
 	int dcrn = get_dcrn(inst);
@@ -152,7 +152,7 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
 	return emulated;
 }
 
-int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
+int kvmppc_core_emulate_mtspr_44x(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
 {
 	int emulated = EMULATE_DONE;
 
@@ -172,7 +172,7 @@ int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
 	return emulated;
 }
 
-int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val)
+int kvmppc_core_emulate_mfspr_44x(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val)
 {
 	int emulated = EMULATE_DONE;
 
diff --git a/arch/powerpc/kvm/44x_tlb.c b/arch/powerpc/kvm/44x_tlb.c
index ed0385448148..0deef1082e02 100644
--- a/arch/powerpc/kvm/44x_tlb.c
+++ b/arch/powerpc/kvm/44x_tlb.c
@@ -268,7 +268,7 @@ static void kvmppc_44x_shadow_release(struct kvmppc_vcpu_44x *vcpu_44x,
 	trace_kvm_stlb_inval(stlb_index);
 }
 
-void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
+void kvmppc_mmu_destroy_44x(struct kvm_vcpu *vcpu)
 {
 	struct kvmppc_vcpu_44x *vcpu_44x = to_44x(vcpu);
 	int i;
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index 807103ad2628..784a1d5ccb04 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -422,6 +422,18 @@ void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu)
 {
 }
 
+int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
+				  struct kvm_sregs *sregs)
+{
+	return kvmppc_ops->get_sregs(vcpu, sregs);
+}
+
+int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
+				  struct kvm_sregs *sregs)
+{
+	return kvmppc_ops->set_sregs(vcpu, sregs);
+}
+
 int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
 {
 	int i;
@@ -498,8 +510,7 @@ int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 	if (size > sizeof(val))
 		return -EINVAL;
 
-	r = kvmppc_get_one_reg(vcpu, reg->id, &val);
-
+	r = kvmppc_ops->get_one_reg(vcpu, reg->id, &val);
 	if (r == -EINVAL) {
 		r = 0;
 		switch (reg->id) {
@@ -578,8 +589,7 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 	if (copy_from_user(&val, (char __user *)(unsigned long)reg->addr, size))
 		return -EFAULT;
 
-	r = kvmppc_set_one_reg(vcpu, reg->id, &val);
-
+	r = kvmppc_ops->set_one_reg(vcpu, reg->id, &val);
 	if (r == -EINVAL) {
 		r = 0;
 		switch (reg->id) {
@@ -638,6 +648,26 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 	return r;
 }
 
+void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
+{
+	kvmppc_ops->vcpu_load(vcpu, cpu);
+}
+
+void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
+{
+	kvmppc_ops->vcpu_put(vcpu);
+}
+
+void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 msr)
+{
+	kvmppc_ops->set_msr(vcpu, msr);
+}
+
+int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
+{
+	return kvmppc_ops->vcpu_run(kvm_run, vcpu);
+}
+
 int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
                                   struct kvm_translation *tr)
 {
@@ -657,3 +687,110 @@ void kvmppc_decrementer_func(unsigned long data)
 	kvmppc_core_queue_dec(vcpu);
 	kvm_vcpu_kick(vcpu);
 }
+
+struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
+{
+	return kvmppc_ops->vcpu_create(kvm, id);
+}
+
+void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
+{
+	kvmppc_ops->vcpu_free(vcpu);
+}
+
+int kvmppc_core_check_requests(struct kvm_vcpu *vcpu)
+{
+	return kvmppc_ops->check_requests(vcpu);
+}
+
+int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log)
+{
+	return kvmppc_ops->get_dirty_log(kvm, log);
+}
+
+void kvmppc_core_free_memslot(struct kvm_memory_slot *free,
+			      struct kvm_memory_slot *dont)
+{
+	kvmppc_ops->free_memslot(free, dont);
+}
+
+int kvmppc_core_create_memslot(struct kvm_memory_slot *slot,
+			       unsigned long npages)
+{
+	return kvmppc_ops->create_memslot(slot, npages);
+}
+
+void kvmppc_core_flush_memslot(struct kvm *kvm, struct kvm_memory_slot *memslot)
+{
+	kvmppc_ops->flush_memslot(kvm, memslot);
+}
+
+int kvmppc_core_prepare_memory_region(struct kvm *kvm,
+				struct kvm_memory_slot *memslot,
+				struct kvm_userspace_memory_region *mem)
+{
+	return kvmppc_ops->prepare_memory_region(kvm, memslot, mem);
+}
+
+void kvmppc_core_commit_memory_region(struct kvm *kvm,
+				struct kvm_userspace_memory_region *mem,
+				const struct kvm_memory_slot *old)
+{
+	kvmppc_ops->commit_memory_region(kvm, mem, old);
+}
+
+int kvm_unmap_hva(struct kvm *kvm, unsigned long hva)
+{
+	return kvmppc_ops->unmap_hva(kvm, hva);
+}
+
+int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
+{
+	return kvmppc_ops->unmap_hva_range(kvm, start, end);
+}
+
+int kvm_age_hva(struct kvm *kvm, unsigned long hva)
+{
+	return kvmppc_ops->age_hva(kvm, hva);
+}
+
+int kvm_test_age_hva(struct kvm *kvm, unsigned long hva)
+{
+	return kvmppc_ops->test_age_hva(kvm, hva);
+}
+
+void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte)
+{
+	kvmppc_ops->set_spte_hva(kvm, hva, pte);
+}
+
+void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
+{
+	kvmppc_ops->mmu_destroy(vcpu);
+}
+
+int kvmppc_core_init_vm(struct kvm *kvm)
+{
+
+#ifdef CONFIG_PPC64
+	INIT_LIST_HEAD(&kvm->arch.spapr_tce_tables);
+	INIT_LIST_HEAD(&kvm->arch.rtas_tokens);
+#endif
+
+	return kvmppc_ops->init_vm(kvm);
+}
+
+void kvmppc_core_destroy_vm(struct kvm *kvm)
+{
+	kvmppc_ops->destroy_vm(kvm);
+
+#ifdef CONFIG_PPC64
+	kvmppc_rtas_tokens_free(kvm);
+	WARN_ON(!list_empty(&kvm->arch.spapr_tce_tables));
+#endif
+}
+
+int kvmppc_core_check_processor_compat(void)
+{
+	return kvmppc_ops->check_processor_compat();
+}
diff --git a/arch/powerpc/kvm/book3s.h b/arch/powerpc/kvm/book3s.h
new file mode 100644
index 000000000000..9e5b3a341943
--- /dev/null
+++ b/arch/powerpc/kvm/book3s.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright IBM Corporation, 2013
+ * Author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License or (at your optional) any later version of the license.
+ *
+ */
+
+#ifndef __POWERPC_KVM_BOOK3S_H__
+#define __POWERPC_KVM_BOOK3S_H__
+
+extern void kvmppc_core_flush_memslot_hv(struct kvm *kvm,
+					 struct kvm_memory_slot *memslot);
+extern int kvm_unmap_hva_hv(struct kvm *kvm, unsigned long hva);
+extern int kvm_unmap_hva_range_hv(struct kvm *kvm, unsigned long start,
+				  unsigned long end);
+extern int kvm_age_hva_hv(struct kvm *kvm, unsigned long hva);
+extern int kvm_test_age_hva_hv(struct kvm *kvm, unsigned long hva);
+extern void kvm_set_spte_hva_hv(struct kvm *kvm, unsigned long hva, pte_t pte);
+
+extern void kvmppc_mmu_destroy_pr(struct kvm_vcpu *vcpu);
+extern int kvmppc_core_emulate_op_pr(struct kvm_run *run, struct kvm_vcpu *vcpu,
+				     unsigned int inst, int *advance);
+extern int kvmppc_core_emulate_mtspr_pr(struct kvm_vcpu *vcpu,
+					int sprn, ulong spr_val);
+extern int kvmppc_core_emulate_mfspr_pr(struct kvm_vcpu *vcpu,
+					int sprn, ulong *spr_val);
+
+#endif
diff --git a/arch/powerpc/kvm/book3s_32_mmu_host.c b/arch/powerpc/kvm/book3s_32_mmu_host.c
index 673322329238..3a0abd2e5a15 100644
--- a/arch/powerpc/kvm/book3s_32_mmu_host.c
+++ b/arch/powerpc/kvm/book3s_32_mmu_host.c
@@ -349,7 +349,7 @@ void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu)
 	svcpu_put(svcpu);
 }
 
-void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
+void kvmppc_mmu_destroy_pr(struct kvm_vcpu *vcpu)
 {
 	int i;
 
diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c b/arch/powerpc/kvm/book3s_64_mmu_host.c
index e2ab8a747fbe..819672c9d787 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_host.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_host.c
@@ -378,7 +378,7 @@ void kvmppc_mmu_flush_segments(struct kvm_vcpu *vcpu)
 	svcpu_put(svcpu);
 }
 
-void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
+void kvmppc_mmu_destroy_pr(struct kvm_vcpu *vcpu)
 {
 	kvmppc_mmu_hpte_destroy(vcpu);
 	__destroy_context(to_book3s(vcpu)->context_id[0]);
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c
index 394fef820f0c..f3ff587a8b7d 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_hv.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c
@@ -260,10 +260,6 @@ int kvmppc_mmu_hv_init(void)
 	return 0;
 }
 
-void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
-{
-}
-
 static void kvmppc_mmu_book3s_64_hv_reset_msr(struct kvm_vcpu *vcpu)
 {
 	kvmppc_set_msr(vcpu, MSR_SF | MSR_ME);
@@ -906,21 +902,22 @@ static int kvm_unmap_rmapp(struct kvm *kvm, unsigned long *rmapp,
 	return 0;
 }
 
-int kvm_unmap_hva(struct kvm *kvm, unsigned long hva)
+int kvm_unmap_hva_hv(struct kvm *kvm, unsigned long hva)
 {
 	if (kvm->arch.using_mmu_notifiers)
 		kvm_handle_hva(kvm, hva, kvm_unmap_rmapp);
 	return 0;
 }
 
-int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
+int kvm_unmap_hva_range_hv(struct kvm *kvm, unsigned long start, unsigned long end)
 {
 	if (kvm->arch.using_mmu_notifiers)
 		kvm_handle_hva_range(kvm, start, end, kvm_unmap_rmapp);
 	return 0;
 }
 
-void kvmppc_core_flush_memslot(struct kvm *kvm, struct kvm_memory_slot *memslot)
+void kvmppc_core_flush_memslot_hv(struct kvm *kvm,
+				  struct kvm_memory_slot *memslot)
 {
 	unsigned long *rmapp;
 	unsigned long gfn;
@@ -994,7 +991,7 @@ static int kvm_age_rmapp(struct kvm *kvm, unsigned long *rmapp,
 	return ret;
 }
 
-int kvm_age_hva(struct kvm *kvm, unsigned long hva)
+int kvm_age_hva_hv(struct kvm *kvm, unsigned long hva)
 {
 	if (!kvm->arch.using_mmu_notifiers)
 		return 0;
@@ -1032,14 +1029,14 @@ static int kvm_test_age_rmapp(struct kvm *kvm, unsigned long *rmapp,
 	return ret;
 }
 
-int kvm_test_age_hva(struct kvm *kvm, unsigned long hva)
+int kvm_test_age_hva_hv(struct kvm *kvm, unsigned long hva)
 {
 	if (!kvm->arch.using_mmu_notifiers)
 		return 0;
 	return kvm_handle_hva(kvm, hva, kvm_test_age_rmapp);
 }
 
-void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte)
+void kvm_set_spte_hva_hv(struct kvm *kvm, unsigned long hva, pte_t pte)
 {
 	if (!kvm->arch.using_mmu_notifiers)
 		return;
diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c
index 34044b111daa..b9841ad844fb 100644
--- a/arch/powerpc/kvm/book3s_emulate.c
+++ b/arch/powerpc/kvm/book3s_emulate.c
@@ -86,8 +86,8 @@ static bool spr_allowed(struct kvm_vcpu *vcpu, enum priv_level level)
 	return true;
 }
 
-int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
-                           unsigned int inst, int *advance)
+int kvmppc_core_emulate_op_pr(struct kvm_run *run, struct kvm_vcpu *vcpu,
+			      unsigned int inst, int *advance)
 {
 	int emulated = EMULATE_DONE;
 	int rt = get_rt(inst);
@@ -345,7 +345,7 @@ static struct kvmppc_bat *kvmppc_find_bat(struct kvm_vcpu *vcpu, int sprn)
 	return bat;
 }
 
-int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
+int kvmppc_core_emulate_mtspr_pr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
 {
 	int emulated = EMULATE_DONE;
 
@@ -468,7 +468,7 @@ unprivileged:
 	return emulated;
 }
 
-int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val)
+int kvmppc_core_emulate_mfspr_pr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val)
 {
 	int emulated = EMULATE_DONE;
 
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index b4d5b3b06769..3d7079a08d2a 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -53,6 +53,8 @@
 #include <linux/highmem.h>
 #include <linux/hugetlb.h>
 
+#include "book3s.h"
+
 /* #define EXIT_DEBUG */
 /* #define EXIT_DEBUG_SIMPLE */
 /* #define EXIT_DEBUG_INT */
@@ -66,7 +68,7 @@
 static void kvmppc_end_cede(struct kvm_vcpu *vcpu);
 static int kvmppc_hv_setup_htab_rma(struct kvm_vcpu *vcpu);
 
-void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
+static void kvmppc_fast_vcpu_kick_hv(struct kvm_vcpu *vcpu)
 {
 	int me;
 	int cpu = vcpu->cpu;
@@ -125,7 +127,7 @@ void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
  * purely defensive; they should never fail.)
  */
 
-void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
+static void kvmppc_core_vcpu_load_hv(struct kvm_vcpu *vcpu, int cpu)
 {
 	struct kvmppc_vcore *vc = vcpu->arch.vcore;
 
@@ -143,7 +145,7 @@ void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 	spin_unlock(&vcpu->arch.tbacct_lock);
 }
 
-void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
+static void kvmppc_core_vcpu_put_hv(struct kvm_vcpu *vcpu)
 {
 	struct kvmppc_vcore *vc = vcpu->arch.vcore;
 
@@ -155,13 +157,13 @@ void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
 	spin_unlock(&vcpu->arch.tbacct_lock);
 }
 
-void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 msr)
+static void kvmppc_set_msr_hv(struct kvm_vcpu *vcpu, u64 msr)
 {
 	vcpu->arch.shregs.msr = msr;
 	kvmppc_end_cede(vcpu);
 }
 
-void kvmppc_set_pvr(struct kvm_vcpu *vcpu, u32 pvr)
+void kvmppc_set_pvr_hv(struct kvm_vcpu *vcpu, u32 pvr)
 {
 	vcpu->arch.pvr = pvr;
 }
@@ -614,8 +616,8 @@ int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu)
 	return RESUME_GUEST;
 }
 
-static int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
-			      struct task_struct *tsk)
+static int kvmppc_handle_exit_hv(struct kvm_run *run, struct kvm_vcpu *vcpu,
+				 struct task_struct *tsk)
 {
 	int r = RESUME_HOST;
 
@@ -717,8 +719,8 @@ static int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
 	return r;
 }
 
-int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
-				  struct kvm_sregs *sregs)
+static int kvm_arch_vcpu_ioctl_get_sregs_hv(struct kvm_vcpu *vcpu,
+					    struct kvm_sregs *sregs)
 {
 	int i;
 
@@ -732,12 +734,12 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
 	return 0;
 }
 
-int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
-				  struct kvm_sregs *sregs)
+static int kvm_arch_vcpu_ioctl_set_sregs_hv(struct kvm_vcpu *vcpu,
+					    struct kvm_sregs *sregs)
 {
 	int i, j;
 
-	kvmppc_set_pvr(vcpu, sregs->pvr);
+	kvmppc_set_pvr_hv(vcpu, sregs->pvr);
 
 	j = 0;
 	for (i = 0; i < vcpu->arch.slb_nr; i++) {
@@ -767,7 +769,8 @@ static void kvmppc_set_lpcr(struct kvm_vcpu *vcpu, u64 new_lpcr)
 	spin_unlock(&vc->lock);
 }
 
-int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
+static int kvmppc_get_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
+				 union kvmppc_one_reg *val)
 {
 	int r = 0;
 	long int i;
@@ -866,7 +869,8 @@ int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
 	return r;
 }
 
-int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
+static int kvmppc_set_one_reg_hv(struct kvm_vcpu *vcpu, u64 id,
+				 union kvmppc_one_reg *val)
 {
 	int r = 0;
 	long int i;
@@ -979,14 +983,8 @@ int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
 	return r;
 }
 
-int kvmppc_core_check_processor_compat(void)
-{
-	if (cpu_has_feature(CPU_FTR_HVMODE))
-		return 0;
-	return -EIO;
-}
-
-struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
+static struct kvm_vcpu *kvmppc_core_vcpu_create_hv(struct kvm *kvm,
+						   unsigned int id)
 {
 	struct kvm_vcpu *vcpu;
 	int err = -EINVAL;
@@ -1010,8 +1008,7 @@ struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
 	vcpu->arch.mmcr[0] = MMCR0_FC;
 	vcpu->arch.ctrl = CTRL_RUNLATCH;
 	/* default to host PVR, since we can't spoof it */
-	vcpu->arch.pvr = mfspr(SPRN_PVR);
-	kvmppc_set_pvr(vcpu, vcpu->arch.pvr);
+	kvmppc_set_pvr_hv(vcpu, mfspr(SPRN_PVR));
 	spin_lock_init(&vcpu->arch.vpa_update_lock);
 	spin_lock_init(&vcpu->arch.tbacct_lock);
 	vcpu->arch.busy_preempt = TB_NIL;
@@ -1064,7 +1061,7 @@ static void unpin_vpa(struct kvm *kvm, struct kvmppc_vpa *vpa)
 					vpa->dirty);
 }
 
-void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
+static void kvmppc_core_vcpu_free_hv(struct kvm_vcpu *vcpu)
 {
 	spin_lock(&vcpu->arch.vpa_update_lock);
 	unpin_vpa(vcpu->kvm, &vcpu->arch.dtl);
@@ -1075,6 +1072,12 @@ void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
 	kmem_cache_free(kvm_vcpu_cache, vcpu);
 }
 
+static int kvmppc_core_check_requests_hv(struct kvm_vcpu *vcpu)
+{
+	/* Indicate we want to get back into the guest */
+	return 1;
+}
+
 static void kvmppc_set_timer(struct kvm_vcpu *vcpu)
 {
 	unsigned long dec_nsec, now;
@@ -1356,8 +1359,8 @@ static void kvmppc_run_core(struct kvmppc_vcore *vc)
 
 		ret = RESUME_GUEST;
 		if (vcpu->arch.trap)
-			ret = kvmppc_handle_exit(vcpu->arch.kvm_run, vcpu,
-						 vcpu->arch.run_task);
+			ret = kvmppc_handle_exit_hv(vcpu->arch.kvm_run, vcpu,
+						    vcpu->arch.run_task);
 
 		vcpu->arch.ret = ret;
 		vcpu->arch.trap = 0;
@@ -1516,7 +1519,7 @@ static int kvmppc_run_vcpu(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 	return vcpu->arch.ret;
 }
 
-int kvmppc_vcpu_run(struct kvm_run *run, struct kvm_vcpu *vcpu)
+static int kvmppc_vcpu_run_hv(struct kvm_run *run, struct kvm_vcpu *vcpu)
 {
 	int r;
 	int srcu_idx;
@@ -1638,7 +1641,8 @@ static const struct file_operations kvm_rma_fops = {
 	.release	= kvm_rma_release,
 };
 
-long kvm_vm_ioctl_allocate_rma(struct kvm *kvm, struct kvm_allocate_rma *ret)
+static long kvm_vm_ioctl_allocate_rma(struct kvm *kvm,
+				      struct kvm_allocate_rma *ret)
 {
 	long fd;
 	struct kvm_rma_info *ri;
@@ -1684,7 +1688,8 @@ static void kvmppc_add_seg_page_size(struct kvm_ppc_one_seg_page_size **sps,
 	(*sps)++;
 }
 
-int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm, struct kvm_ppc_smmu_info *info)
+static int kvm_vm_ioctl_get_smmu_info_hv(struct kvm *kvm,
+					 struct kvm_ppc_smmu_info *info)
 {
 	struct kvm_ppc_one_seg_page_size *sps;
 
@@ -1705,7 +1710,8 @@ int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm, struct kvm_ppc_smmu_info *info)
 /*
  * Get (and clear) the dirty memory log for a memory slot.
  */
-int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log)
+static int kvm_vm_ioctl_get_dirty_log_hv(struct kvm *kvm,
+					 struct kvm_dirty_log *log)
 {
 	struct kvm_memory_slot *memslot;
 	int r;
@@ -1759,8 +1765,8 @@ static void unpin_slot(struct kvm_memory_slot *memslot)
 	}
 }
 
-void kvmppc_core_free_memslot(struct kvm_memory_slot *free,
-			      struct kvm_memory_slot *dont)
+static void kvmppc_core_free_memslot_hv(struct kvm_memory_slot *free,
+					struct kvm_memory_slot *dont)
 {
 	if (!dont || free->arch.rmap != dont->arch.rmap) {
 		vfree(free->arch.rmap);
@@ -1773,8 +1779,8 @@ void kvmppc_core_free_memslot(struct kvm_memory_slot *free,
 	}
 }
 
-int kvmppc_core_create_memslot(struct kvm_memory_slot *slot,
-			       unsigned long npages)
+static int kvmppc_core_create_memslot_hv(struct kvm_memory_slot *slot,
+					 unsigned long npages)
 {
 	slot->arch.rmap = vzalloc(npages * sizeof(*slot->arch.rmap));
 	if (!slot->arch.rmap)
@@ -1784,9 +1790,9 @@ int kvmppc_core_create_memslot(struct kvm_memory_slot *slot,
 	return 0;
 }
 
-int kvmppc_core_prepare_memory_region(struct kvm *kvm,
-				      struct kvm_memory_slot *memslot,
-				      struct kvm_userspace_memory_region *mem)
+static int kvmppc_core_prepare_memory_region_hv(struct kvm *kvm,
+					struct kvm_memory_slot *memslot,
+					struct kvm_userspace_memory_region *mem)
 {
 	unsigned long *phys;
 
@@ -1802,9 +1808,9 @@ int kvmppc_core_prepare_memory_region(struct kvm *kvm,
 	return 0;
 }
 
-void kvmppc_core_commit_memory_region(struct kvm *kvm,
-				      struct kvm_userspace_memory_region *mem,
-				      const struct kvm_memory_slot *old)
+static void kvmppc_core_commit_memory_region_hv(struct kvm *kvm,
+				struct kvm_userspace_memory_region *mem,
+				const struct kvm_memory_slot *old)
 {
 	unsigned long npages = mem->memory_size >> PAGE_SHIFT;
 	struct kvm_memory_slot *memslot;
@@ -1847,6 +1853,11 @@ void kvmppc_update_lpcr(struct kvm *kvm, unsigned long lpcr, unsigned long mask)
 	}
 }
 
+static void kvmppc_mmu_destroy_hv(struct kvm_vcpu *vcpu)
+{
+	return;
+}
+
 static int kvmppc_hv_setup_htab_rma(struct kvm_vcpu *vcpu)
 {
 	int err = 0;
@@ -1994,7 +2005,7 @@ static int kvmppc_hv_setup_htab_rma(struct kvm_vcpu *vcpu)
 	goto out_srcu;
 }
 
-int kvmppc_core_init_vm(struct kvm *kvm)
+static int kvmppc_core_init_vm_hv(struct kvm *kvm)
 {
 	unsigned long lpcr, lpid;
 
@@ -2012,9 +2023,6 @@ int kvmppc_core_init_vm(struct kvm *kvm)
 	 */
 	cpumask_setall(&kvm->arch.need_tlb_flush);
 
-	INIT_LIST_HEAD(&kvm->arch.spapr_tce_tables);
-	INIT_LIST_HEAD(&kvm->arch.rtas_tokens);
-
 	kvm->arch.rma = NULL;
 
 	kvm->arch.host_sdr1 = mfspr(SPRN_SDR1);
@@ -2059,7 +2067,7 @@ static void kvmppc_free_vcores(struct kvm *kvm)
 	kvm->arch.online_vcores = 0;
 }
 
-void kvmppc_core_destroy_vm(struct kvm *kvm)
+static void kvmppc_core_destroy_vm_hv(struct kvm *kvm)
 {
 	uninhibit_secondary_onlining();
 
@@ -2069,39 +2077,127 @@ void kvmppc_core_destroy_vm(struct kvm *kvm)
 		kvm->arch.rma = NULL;
 	}
 
-	kvmppc_rtas_tokens_free(kvm);
-
 	kvmppc_free_hpt(kvm);
-	WARN_ON(!list_empty(&kvm->arch.spapr_tce_tables));
 }
 
-/* These are stubs for now */
-void kvmppc_mmu_pte_pflush(struct kvm_vcpu *vcpu, ulong pa_start, ulong pa_end)
+/* We don't need to emulate any privileged instructions or dcbz */
+static int kvmppc_core_emulate_op_hv(struct kvm_run *run, struct kvm_vcpu *vcpu,
+				     unsigned int inst, int *advance)
 {
+	return EMULATE_FAIL;
 }
 
-/* We don't need to emulate any privileged instructions or dcbz */
-int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
-                           unsigned int inst, int *advance)
+static int kvmppc_core_emulate_mtspr_hv(struct kvm_vcpu *vcpu, int sprn,
+					ulong spr_val)
 {
 	return EMULATE_FAIL;
 }
 
-int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
+static int kvmppc_core_emulate_mfspr_hv(struct kvm_vcpu *vcpu, int sprn,
+					ulong *spr_val)
 {
 	return EMULATE_FAIL;
 }
 
-int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val)
+static int kvmppc_core_check_processor_compat_hv(void)
 {
-	return EMULATE_FAIL;
+	if (!cpu_has_feature(CPU_FTR_HVMODE))
+		return -EIO;
+	return 0;
 }
 
-static int kvmppc_book3s_hv_init(void)
+static long kvm_arch_vm_ioctl_hv(struct file *filp,
+				 unsigned int ioctl, unsigned long arg)
+{
+	struct kvm *kvm __maybe_unused = filp->private_data;
+	void __user *argp = (void __user *)arg;
+	long r;
+
+	switch (ioctl) {
+
+	case KVM_ALLOCATE_RMA: {
+		struct kvm_allocate_rma rma;
+		struct kvm *kvm = filp->private_data;
+
+		r = kvm_vm_ioctl_allocate_rma(kvm, &rma);
+		if (r >= 0 && copy_to_user(argp, &rma, sizeof(rma)))
+			r = -EFAULT;
+		break;
+	}
+
+	case KVM_PPC_ALLOCATE_HTAB: {
+		u32 htab_order;
+
+		r = -EFAULT;
+		if (get_user(htab_order, (u32 __user *)argp))
+			break;
+		r = kvmppc_alloc_reset_hpt(kvm, &htab_order);
+		if (r)
+			break;
+		r = -EFAULT;
+		if (put_user(htab_order, (u32 __user *)argp))
+			break;
+		r = 0;
+		break;
+	}
+
+	case KVM_PPC_GET_HTAB_FD: {
+		struct kvm_get_htab_fd ghf;
+
+		r = -EFAULT;
+		if (copy_from_user(&ghf, argp, sizeof(ghf)))
+			break;
+		r = kvm_vm_ioctl_get_htab_fd(kvm, &ghf);
+		break;
+	}
+
+	default:
+		r = -ENOTTY;
+	}
+
+	return r;
+}
+
+static struct kvmppc_ops kvmppc_hv_ops = {
+	.get_sregs = kvm_arch_vcpu_ioctl_get_sregs_hv,
+	.set_sregs = kvm_arch_vcpu_ioctl_set_sregs_hv,
+	.get_one_reg = kvmppc_get_one_reg_hv,
+	.set_one_reg = kvmppc_set_one_reg_hv,
+	.vcpu_load   = kvmppc_core_vcpu_load_hv,
+	.vcpu_put    = kvmppc_core_vcpu_put_hv,
+	.set_msr     = kvmppc_set_msr_hv,
+	.vcpu_run    = kvmppc_vcpu_run_hv,
+	.vcpu_create = kvmppc_core_vcpu_create_hv,
+	.vcpu_free   = kvmppc_core_vcpu_free_hv,
+	.check_requests = kvmppc_core_check_requests_hv,
+	.get_dirty_log  = kvm_vm_ioctl_get_dirty_log_hv,
+	.flush_memslot  = kvmppc_core_flush_memslot_hv,
+	.prepare_memory_region = kvmppc_core_prepare_memory_region_hv,
+	.commit_memory_region  = kvmppc_core_commit_memory_region_hv,
+	.unmap_hva = kvm_unmap_hva_hv,
+	.unmap_hva_range = kvm_unmap_hva_range_hv,
+	.age_hva  = kvm_age_hva_hv,
+	.test_age_hva = kvm_test_age_hva_hv,
+	.set_spte_hva = kvm_set_spte_hva_hv,
+	.mmu_destroy  = kvmppc_mmu_destroy_hv,
+	.free_memslot = kvmppc_core_free_memslot_hv,
+	.create_memslot = kvmppc_core_create_memslot_hv,
+	.init_vm =  kvmppc_core_init_vm_hv,
+	.destroy_vm = kvmppc_core_destroy_vm_hv,
+	.check_processor_compat = kvmppc_core_check_processor_compat_hv,
+	.get_smmu_info = kvm_vm_ioctl_get_smmu_info_hv,
+	.emulate_op = kvmppc_core_emulate_op_hv,
+	.emulate_mtspr = kvmppc_core_emulate_mtspr_hv,
+	.emulate_mfspr = kvmppc_core_emulate_mfspr_hv,
+	.fast_vcpu_kick = kvmppc_fast_vcpu_kick_hv,
+	.arch_vm_ioctl  = kvm_arch_vm_ioctl_hv,
+};
+
+static int kvmppc_book3s_init_hv(void)
 {
 	int r;
 
-	r = kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE);
+	r = kvm_init(&kvmppc_hv_ops, sizeof(struct kvm_vcpu), 0, THIS_MODULE);
 
 	if (r)
 		return r;
@@ -2111,10 +2207,10 @@ static int kvmppc_book3s_hv_init(void)
 	return r;
 }
 
-static void kvmppc_book3s_hv_exit(void)
+static void kvmppc_book3s_exit_hv(void)
 {
 	kvm_exit();
 }
 
-module_init(kvmppc_book3s_hv_init);
-module_exit(kvmppc_book3s_hv_exit);
+module_init(kvmppc_book3s_init_hv);
+module_exit(kvmppc_book3s_exit_hv);
diff --git a/arch/powerpc/kvm/book3s_interrupts.S b/arch/powerpc/kvm/book3s_interrupts.S
index 38166ab2f19c..f4dd041c14ea 100644
--- a/arch/powerpc/kvm/book3s_interrupts.S
+++ b/arch/powerpc/kvm/book3s_interrupts.S
@@ -181,7 +181,7 @@ kvm_start_lightweight:
 
 	/* Restore r3 (kvm_run) and r4 (vcpu) */
 	REST_2GPRS(3, r1)
-	bl	FUNC(kvmppc_handle_exit)
+	bl	FUNC(kvmppc_handle_exit_pr)
 
 	/* If RESUME_GUEST, get back in the loop */
 	cmpwi	r3, RESUME_GUEST
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 6075dbd0b364..05d28cf4a06c 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -41,6 +41,7 @@
 #include <linux/vmalloc.h>
 #include <linux/highmem.h>
 
+#include "book3s.h"
 #include "trace.h"
 
 /* #define EXIT_DEBUG */
@@ -56,7 +57,7 @@ static int kvmppc_handle_ext(struct kvm_vcpu *vcpu, unsigned int exit_nr,
 #define HW_PAGE_SIZE PAGE_SIZE
 #endif
 
-void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
+static void kvmppc_core_vcpu_load_pr(struct kvm_vcpu *vcpu, int cpu)
 {
 #ifdef CONFIG_PPC_BOOK3S_64
 	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
@@ -70,7 +71,7 @@ void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 #endif
 }
 
-void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
+static void kvmppc_core_vcpu_put_pr(struct kvm_vcpu *vcpu)
 {
 #ifdef CONFIG_PPC_BOOK3S_64
 	struct kvmppc_book3s_shadow_vcpu *svcpu = svcpu_get(vcpu);
@@ -137,7 +138,7 @@ void kvmppc_copy_from_svcpu(struct kvm_vcpu *vcpu,
 	vcpu->arch.last_inst   = svcpu->last_inst;
 }
 
-int kvmppc_core_check_requests(struct kvm_vcpu *vcpu)
+static int kvmppc_core_check_requests_pr(struct kvm_vcpu *vcpu)
 {
 	int r = 1; /* Indicate we want to get back into the guest */
 
@@ -180,7 +181,7 @@ static void do_kvm_unmap_hva(struct kvm *kvm, unsigned long start,
 	}
 }
 
-int kvm_unmap_hva(struct kvm *kvm, unsigned long hva)
+static int kvm_unmap_hva_pr(struct kvm *kvm, unsigned long hva)
 {
 	trace_kvm_unmap_hva(hva);
 
@@ -189,26 +190,27 @@ int kvm_unmap_hva(struct kvm *kvm, unsigned long hva)
 	return 0;
 }
 
-int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
+static int kvm_unmap_hva_range_pr(struct kvm *kvm, unsigned long start,
+				  unsigned long end)
 {
 	do_kvm_unmap_hva(kvm, start, end);
 
 	return 0;
 }
 
-int kvm_age_hva(struct kvm *kvm, unsigned long hva)
+static int kvm_age_hva_pr(struct kvm *kvm, unsigned long hva)
 {
 	/* XXX could be more clever ;) */
 	return 0;
 }
 
-int kvm_test_age_hva(struct kvm *kvm, unsigned long hva)
+static int kvm_test_age_hva_pr(struct kvm *kvm, unsigned long hva)
 {
 	/* XXX could be more clever ;) */
 	return 0;
 }
 
-void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte)
+static void kvm_set_spte_hva_pr(struct kvm *kvm, unsigned long hva, pte_t pte)
 {
 	/* The page will get remapped properly on its next fault */
 	do_kvm_unmap_hva(kvm, hva, hva + PAGE_SIZE);
@@ -233,7 +235,7 @@ static void kvmppc_recalc_shadow_msr(struct kvm_vcpu *vcpu)
 	vcpu->arch.shadow_msr = smsr;
 }
 
-void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 msr)
+static void kvmppc_set_msr_pr(struct kvm_vcpu *vcpu, u64 msr)
 {
 	ulong old_msr = vcpu->arch.shared->msr;
 
@@ -293,7 +295,7 @@ void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 msr)
 		kvmppc_handle_ext(vcpu, BOOK3S_INTERRUPT_FP_UNAVAIL, MSR_FP);
 }
 
-void kvmppc_set_pvr(struct kvm_vcpu *vcpu, u32 pvr)
+void kvmppc_set_pvr_pr(struct kvm_vcpu *vcpu, u32 pvr)
 {
 	u32 host_pvr;
 
@@ -725,8 +727,8 @@ static void kvmppc_handle_lost_ext(struct kvm_vcpu *vcpu)
 	current->thread.regs->msr |= lost_ext;
 }
 
-int kvmppc_handle_exit(struct kvm_run *run, struct kvm_vcpu *vcpu,
-                       unsigned int exit_nr)
+int kvmppc_handle_exit_pr(struct kvm_run *run, struct kvm_vcpu *vcpu,
+			  unsigned int exit_nr)
 {
 	int r = RESUME_HOST;
 	int s;
@@ -1034,8 +1036,8 @@ program_interrupt:
 	return r;
 }
 
-int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
-                                  struct kvm_sregs *sregs)
+static int kvm_arch_vcpu_ioctl_get_sregs_pr(struct kvm_vcpu *vcpu,
+					    struct kvm_sregs *sregs)
 {
 	struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu);
 	int i;
@@ -1061,13 +1063,13 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
 	return 0;
 }
 
-int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
-                                  struct kvm_sregs *sregs)
+static int kvm_arch_vcpu_ioctl_set_sregs_pr(struct kvm_vcpu *vcpu,
+					    struct kvm_sregs *sregs)
 {
 	struct kvmppc_vcpu_book3s *vcpu3s = to_book3s(vcpu);
 	int i;
 
-	kvmppc_set_pvr(vcpu, sregs->pvr);
+	kvmppc_set_pvr_pr(vcpu, sregs->pvr);
 
 	vcpu3s->sdr1 = sregs->u.s.sdr1;
 	if (vcpu->arch.hflags & BOOK3S_HFLAG_SLB) {
@@ -1097,7 +1099,8 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
 	return 0;
 }
 
-int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
+static int kvmppc_get_one_reg_pr(struct kvm_vcpu *vcpu, u64 id,
+				 union kvmppc_one_reg *val)
 {
 	int r = 0;
 
@@ -1126,7 +1129,8 @@ int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
 	return r;
 }
 
-int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
+static int kvmppc_set_one_reg_pr(struct kvm_vcpu *vcpu, u64 id,
+				 union kvmppc_one_reg *val)
 {
 	int r = 0;
 
@@ -1156,12 +1160,8 @@ int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
 	return r;
 }
 
-int kvmppc_core_check_processor_compat(void)
-{
-	return 0;
-}
-
-struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
+static struct kvm_vcpu *kvmppc_core_vcpu_create_pr(struct kvm *kvm,
+						   unsigned int id)
 {
 	struct kvmppc_vcpu_book3s *vcpu_book3s;
 	struct kvm_vcpu *vcpu;
@@ -1208,7 +1208,7 @@ struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
 	/* default to book3s_32 (750) */
 	vcpu->arch.pvr = 0x84202;
 #endif
-	kvmppc_set_pvr(vcpu, vcpu->arch.pvr);
+	kvmppc_set_pvr_pr(vcpu, vcpu->arch.pvr);
 	vcpu->arch.slb_nr = 64;
 
 	vcpu->arch.shadow_msr = MSR_USER64;
@@ -1233,7 +1233,7 @@ out:
 	return ERR_PTR(err);
 }
 
-void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
+static void kvmppc_core_vcpu_free_pr(struct kvm_vcpu *vcpu)
 {
 	struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu);
 
@@ -1246,7 +1246,7 @@ void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
 	kmem_cache_free(kvm_vcpu_cache, vcpu);
 }
 
-int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
+static int kvmppc_vcpu_run_pr(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 {
 	int ret;
 	double fpr[32][TS_FPRWIDTH];
@@ -1355,8 +1355,8 @@ out:
 /*
  * Get (and clear) the dirty memory log for a memory slot.
  */
-int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
-				      struct kvm_dirty_log *log)
+static int kvm_vm_ioctl_get_dirty_log_pr(struct kvm *kvm,
+					 struct kvm_dirty_log *log)
 {
 	struct kvm_memory_slot *memslot;
 	struct kvm_vcpu *vcpu;
@@ -1391,8 +1391,42 @@ out:
 	return r;
 }
 
+static void kvmppc_core_flush_memslot_pr(struct kvm *kvm,
+					 struct kvm_memory_slot *memslot)
+{
+	return;
+}
+
+static int kvmppc_core_prepare_memory_region_pr(struct kvm *kvm,
+					struct kvm_memory_slot *memslot,
+					struct kvm_userspace_memory_region *mem)
+{
+	return 0;
+}
+
+static void kvmppc_core_commit_memory_region_pr(struct kvm *kvm,
+				struct kvm_userspace_memory_region *mem,
+				const struct kvm_memory_slot *old)
+{
+	return;
+}
+
+static void kvmppc_core_free_memslot_pr(struct kvm_memory_slot *free,
+					struct kvm_memory_slot *dont)
+{
+	return;
+}
+
+static int kvmppc_core_create_memslot_pr(struct kvm_memory_slot *slot,
+					 unsigned long npages)
+{
+	return 0;
+}
+
+
 #ifdef CONFIG_PPC64
-int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm, struct kvm_ppc_smmu_info *info)
+static int kvm_vm_ioctl_get_smmu_info_pr(struct kvm *kvm,
+					 struct kvm_ppc_smmu_info *info)
 {
 	long int i;
 	struct kvm_vcpu *vcpu;
@@ -1436,45 +1470,20 @@ int kvm_vm_ioctl_get_smmu_info(struct kvm *kvm, struct kvm_ppc_smmu_info *info)
 
 	return 0;
 }
-#endif /* CONFIG_PPC64 */
-
-void kvmppc_core_free_memslot(struct kvm_memory_slot *free,
-			      struct kvm_memory_slot *dont)
-{
-}
-
-int kvmppc_core_create_memslot(struct kvm_memory_slot *slot,
-			       unsigned long npages)
-{
-	return 0;
-}
-
-int kvmppc_core_prepare_memory_region(struct kvm *kvm,
-				      struct kvm_memory_slot *memslot,
-				      struct kvm_userspace_memory_region *mem)
-{
-	return 0;
-}
-
-void kvmppc_core_commit_memory_region(struct kvm *kvm,
-				struct kvm_userspace_memory_region *mem,
-				const struct kvm_memory_slot *old)
-{
-}
-
-void kvmppc_core_flush_memslot(struct kvm *kvm, struct kvm_memory_slot *memslot)
+#else
+static int kvm_vm_ioctl_get_smmu_info_pr(struct kvm *kvm,
+					 struct kvm_ppc_smmu_info *info)
 {
+	/* We should not get called */
+	BUG();
 }
+#endif /* CONFIG_PPC64 */
 
 static unsigned int kvm_global_user_count = 0;
 static DEFINE_SPINLOCK(kvm_global_user_count_lock);
 
-int kvmppc_core_init_vm(struct kvm *kvm)
+static int kvmppc_core_init_vm_pr(struct kvm *kvm)
 {
-#ifdef CONFIG_PPC64
-	INIT_LIST_HEAD(&kvm->arch.spapr_tce_tables);
-	INIT_LIST_HEAD(&kvm->arch.rtas_tokens);
-#endif
 	mutex_init(&kvm->arch.hpt_mutex);
 
 	if (firmware_has_feature(FW_FEATURE_SET_MODE)) {
@@ -1486,7 +1495,7 @@ int kvmppc_core_init_vm(struct kvm *kvm)
 	return 0;
 }
 
-void kvmppc_core_destroy_vm(struct kvm *kvm)
+static void kvmppc_core_destroy_vm_pr(struct kvm *kvm)
 {
 #ifdef CONFIG_PPC64
 	WARN_ON(!list_empty(&kvm->arch.spapr_tce_tables));
@@ -1501,11 +1510,58 @@ void kvmppc_core_destroy_vm(struct kvm *kvm)
 	}
 }
 
-static int kvmppc_book3s_init(void)
+static int kvmppc_core_check_processor_compat_pr(void)
+{
+	/* we are always compatible */
+	return 0;
+}
+
+static long kvm_arch_vm_ioctl_pr(struct file *filp,
+				 unsigned int ioctl, unsigned long arg)
+{
+	return -ENOTTY;
+}
+
+static struct kvmppc_ops kvmppc_pr_ops = {
+	.get_sregs = kvm_arch_vcpu_ioctl_get_sregs_pr,
+	.set_sregs = kvm_arch_vcpu_ioctl_set_sregs_pr,
+	.get_one_reg = kvmppc_get_one_reg_pr,
+	.set_one_reg = kvmppc_set_one_reg_pr,
+	.vcpu_load   = kvmppc_core_vcpu_load_pr,
+	.vcpu_put    = kvmppc_core_vcpu_put_pr,
+	.set_msr     = kvmppc_set_msr_pr,
+	.vcpu_run    = kvmppc_vcpu_run_pr,
+	.vcpu_create = kvmppc_core_vcpu_create_pr,
+	.vcpu_free   = kvmppc_core_vcpu_free_pr,
+	.check_requests = kvmppc_core_check_requests_pr,
+	.get_dirty_log = kvm_vm_ioctl_get_dirty_log_pr,
+	.flush_memslot = kvmppc_core_flush_memslot_pr,
+	.prepare_memory_region = kvmppc_core_prepare_memory_region_pr,
+	.commit_memory_region = kvmppc_core_commit_memory_region_pr,
+	.unmap_hva = kvm_unmap_hva_pr,
+	.unmap_hva_range = kvm_unmap_hva_range_pr,
+	.age_hva  = kvm_age_hva_pr,
+	.test_age_hva = kvm_test_age_hva_pr,
+	.set_spte_hva = kvm_set_spte_hva_pr,
+	.mmu_destroy  = kvmppc_mmu_destroy_pr,
+	.free_memslot = kvmppc_core_free_memslot_pr,
+	.create_memslot = kvmppc_core_create_memslot_pr,
+	.init_vm = kvmppc_core_init_vm_pr,
+	.destroy_vm = kvmppc_core_destroy_vm_pr,
+	.check_processor_compat = kvmppc_core_check_processor_compat_pr,
+	.get_smmu_info = kvm_vm_ioctl_get_smmu_info_pr,
+	.emulate_op = kvmppc_core_emulate_op_pr,
+	.emulate_mtspr = kvmppc_core_emulate_mtspr_pr,
+	.emulate_mfspr = kvmppc_core_emulate_mfspr_pr,
+	.fast_vcpu_kick = kvm_vcpu_kick,
+	.arch_vm_ioctl  = kvm_arch_vm_ioctl_pr,
+};
+
+static int kvmppc_book3s_init_pr(void)
 {
 	int r;
 
-	r = kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE);
+	r = kvm_init(&kvmppc_pr_ops, sizeof(struct kvm_vcpu), 0, THIS_MODULE);
 
 	if (r)
 		return r;
@@ -1515,11 +1571,11 @@ static int kvmppc_book3s_init(void)
 	return r;
 }
 
-static void kvmppc_book3s_exit(void)
+static void kvmppc_book3s_exit_pr(void)
 {
 	kvmppc_mmu_hpte_sysexit();
 	kvm_exit();
 }
 
-module_init(kvmppc_book3s_init);
-module_exit(kvmppc_book3s_exit);
+module_init(kvmppc_book3s_init_pr);
+module_exit(kvmppc_book3s_exit_pr);
diff --git a/arch/powerpc/kvm/book3s_xics.c b/arch/powerpc/kvm/book3s_xics.c
index a3a5cb8ee7ea..51ed1ea440e0 100644
--- a/arch/powerpc/kvm/book3s_xics.c
+++ b/arch/powerpc/kvm/book3s_xics.c
@@ -1250,13 +1250,13 @@ static int kvmppc_xics_create(struct kvm_device *dev, u32 type)
 
 	xics_debugfs_init(xics);
 
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 	if (cpu_has_feature(CPU_FTR_ARCH_206)) {
 		/* Enable real mode support */
 		xics->real_mode = ENABLE_REALMODE;
 		xics->real_mode_dbg = DEBUG_REALMODE;
 	}
-#endif /* CONFIG_KVM_BOOK3S_64_HV */
+#endif /* CONFIG_KVM_BOOK3S_HV_POSSIBLE */
 
 	return 0;
 }
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 8b6a790c0562..e5f8ba793c31 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -1415,7 +1415,7 @@ static int set_sregs_arch206(struct kvm_vcpu *vcpu,
 	return 0;
 }
 
-void kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
+int kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
 {
 	sregs->u.e.features |= KVM_SREGS_E_IVOR;
 
@@ -1435,6 +1435,7 @@ void kvmppc_get_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
 	sregs->u.e.ivor_low[13] = vcpu->arch.ivor[BOOKE_IRQPRIO_DTLB_MISS];
 	sregs->u.e.ivor_low[14] = vcpu->arch.ivor[BOOKE_IRQPRIO_ITLB_MISS];
 	sregs->u.e.ivor_low[15] = vcpu->arch.ivor[BOOKE_IRQPRIO_DEBUG];
+	return 0;
 }
 
 int kvmppc_set_sregs_ivor(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
@@ -1469,8 +1470,7 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
 
 	get_sregs_base(vcpu, sregs);
 	get_sregs_arch206(vcpu, sregs);
-	kvmppc_core_get_sregs(vcpu, sregs);
-	return 0;
+	return kvmppc_ops->get_sregs(vcpu, sregs);
 }
 
 int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
@@ -1489,7 +1489,7 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
 	if (ret < 0)
 		return ret;
 
-	return kvmppc_core_set_sregs(vcpu, sregs);
+	return kvmppc_ops->set_sregs(vcpu, sregs);
 }
 
 int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
@@ -1546,7 +1546,7 @@ int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 		val = get_reg_val(reg->id, vcpu->arch.vrsave);
 		break;
 	default:
-		r = kvmppc_get_one_reg(vcpu, reg->id, &val);
+		r = kvmppc_ops->get_one_reg(vcpu, reg->id, &val);
 		break;
 	}
 
@@ -1629,7 +1629,7 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 		vcpu->arch.vrsave = set_reg_val(reg->id, val);
 		break;
 	default:
-		r = kvmppc_set_one_reg(vcpu, reg->id, &val);
+		r = kvmppc_ops->set_one_reg(vcpu, reg->id, &val);
 		break;
 	}
 
@@ -1907,6 +1907,41 @@ void kvmppc_booke_vcpu_put(struct kvm_vcpu *vcpu)
 	kvmppc_clear_dbsr();
 }
 
+void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
+{
+	kvmppc_ops->mmu_destroy(vcpu);
+}
+
+int kvmppc_core_init_vm(struct kvm *kvm)
+{
+	return kvmppc_ops->init_vm(kvm);
+}
+
+struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
+{
+	return kvmppc_ops->vcpu_create(kvm, id);
+}
+
+void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
+{
+	kvmppc_ops->vcpu_free(vcpu);
+}
+
+void kvmppc_core_destroy_vm(struct kvm *kvm)
+{
+	kvmppc_ops->destroy_vm(kvm);
+}
+
+void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
+{
+	kvmppc_ops->vcpu_load(vcpu, cpu);
+}
+
+void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
+{
+	kvmppc_ops->vcpu_put(vcpu);
+}
+
 int __init kvmppc_booke_init(void)
 {
 #ifndef CONFIG_KVM_BOOKE_HV
diff --git a/arch/powerpc/kvm/booke.h b/arch/powerpc/kvm/booke.h
index a1ff67d04022..09bfd9bc7cf8 100644
--- a/arch/powerpc/kvm/booke.h
+++ b/arch/powerpc/kvm/booke.h
@@ -99,6 +99,30 @@ enum int_class {
 
 void kvmppc_set_pending_interrupt(struct kvm_vcpu *vcpu, enum int_class type);
 
+extern void kvmppc_mmu_destroy_44x(struct kvm_vcpu *vcpu);
+extern int kvmppc_core_emulate_op_44x(struct kvm_run *run, struct kvm_vcpu *vcpu,
+				      unsigned int inst, int *advance);
+extern int kvmppc_core_emulate_mtspr_44x(struct kvm_vcpu *vcpu, int sprn,
+					 ulong spr_val);
+extern int kvmppc_core_emulate_mfspr_44x(struct kvm_vcpu *vcpu, int sprn,
+					 ulong *spr_val);
+extern void kvmppc_mmu_destroy_e500(struct kvm_vcpu *vcpu);
+extern int kvmppc_core_emulate_op_e500(struct kvm_run *run,
+				       struct kvm_vcpu *vcpu,
+				       unsigned int inst, int *advance);
+extern int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn,
+					  ulong spr_val);
+extern int kvmppc_core_emulate_mfspr_e500(struct kvm_vcpu *vcpu, int sprn,
+					  ulong *spr_val);
+extern void kvmppc_mmu_destroy_e500(struct kvm_vcpu *vcpu);
+extern int kvmppc_core_emulate_op_e500(struct kvm_run *run,
+				       struct kvm_vcpu *vcpu,
+				       unsigned int inst, int *advance);
+extern int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn,
+					  ulong spr_val);
+extern int kvmppc_core_emulate_mfspr_e500(struct kvm_vcpu *vcpu, int sprn,
+					  ulong *spr_val);
+
 /*
  * Load up guest vcpu FP state if it's needed.
  * It also set the MSR_FP in thread so that host know
diff --git a/arch/powerpc/kvm/e500.c b/arch/powerpc/kvm/e500.c
index ce6b73c29612..d225d5ebddcc 100644
--- a/arch/powerpc/kvm/e500.c
+++ b/arch/powerpc/kvm/e500.c
@@ -305,7 +305,7 @@ void kvmppc_core_load_guest_debugstate(struct kvm_vcpu *vcpu)
 {
 }
 
-void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
+static void kvmppc_core_vcpu_load_e500(struct kvm_vcpu *vcpu, int cpu)
 {
 	kvmppc_booke_vcpu_load(vcpu, cpu);
 
@@ -313,7 +313,7 @@ void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 	kvmppc_e500_recalc_shadow_pid(to_e500(vcpu));
 }
 
-void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
+static void kvmppc_core_vcpu_put_e500(struct kvm_vcpu *vcpu)
 {
 #ifdef CONFIG_SPE
 	if (vcpu->arch.shadow_msr & MSR_SPE)
@@ -367,7 +367,8 @@ int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu)
 	return 0;
 }
 
-void kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
+static int kvmppc_core_get_sregs_e500(struct kvm_vcpu *vcpu,
+				      struct kvm_sregs *sregs)
 {
 	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
 
@@ -388,9 +389,11 @@ void kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
 
 	kvmppc_get_sregs_ivor(vcpu, sregs);
 	kvmppc_get_sregs_e500_tlb(vcpu, sregs);
+	return 0;
 }
 
-int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
+static int kvmppc_core_set_sregs_e500(struct kvm_vcpu *vcpu,
+				      struct kvm_sregs *sregs)
 {
 	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
 	int ret;
@@ -425,21 +428,22 @@ int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
 	return kvmppc_set_sregs_ivor(vcpu, sregs);
 }
 
-int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id,
-			union kvmppc_one_reg *val)
+static int kvmppc_get_one_reg_e500(struct kvm_vcpu *vcpu, u64 id,
+				   union kvmppc_one_reg *val)
 {
 	int r = kvmppc_get_one_reg_e500_tlb(vcpu, id, val);
 	return r;
 }
 
-int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id,
-		       union kvmppc_one_reg *val)
+static int kvmppc_set_one_reg_e500(struct kvm_vcpu *vcpu, u64 id,
+				   union kvmppc_one_reg *val)
 {
 	int r = kvmppc_get_one_reg_e500_tlb(vcpu, id, val);
 	return r;
 }
 
-struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
+static struct kvm_vcpu *kvmppc_core_vcpu_create_e500(struct kvm *kvm,
+						     unsigned int id)
 {
 	struct kvmppc_vcpu_e500 *vcpu_e500;
 	struct kvm_vcpu *vcpu;
@@ -481,7 +485,7 @@ out:
 	return ERR_PTR(err);
 }
 
-void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
+static void kvmppc_core_vcpu_free_e500(struct kvm_vcpu *vcpu)
 {
 	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
 
@@ -492,15 +496,32 @@ void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
 	kmem_cache_free(kvm_vcpu_cache, vcpu_e500);
 }
 
-int kvmppc_core_init_vm(struct kvm *kvm)
+static int kvmppc_core_init_vm_e500(struct kvm *kvm)
 {
 	return 0;
 }
 
-void kvmppc_core_destroy_vm(struct kvm *kvm)
+static void kvmppc_core_destroy_vm_e500(struct kvm *kvm)
 {
 }
 
+static struct kvmppc_ops kvm_ops_e500 = {
+	.get_sregs = kvmppc_core_get_sregs_e500,
+	.set_sregs = kvmppc_core_set_sregs_e500,
+	.get_one_reg = kvmppc_get_one_reg_e500,
+	.set_one_reg = kvmppc_set_one_reg_e500,
+	.vcpu_load   = kvmppc_core_vcpu_load_e500,
+	.vcpu_put    = kvmppc_core_vcpu_put_e500,
+	.vcpu_create = kvmppc_core_vcpu_create_e500,
+	.vcpu_free   = kvmppc_core_vcpu_free_e500,
+	.mmu_destroy  = kvmppc_mmu_destroy_e500,
+	.init_vm = kvmppc_core_init_vm_e500,
+	.destroy_vm = kvmppc_core_destroy_vm_e500,
+	.emulate_op = kvmppc_core_emulate_op_e500,
+	.emulate_mtspr = kvmppc_core_emulate_mtspr_e500,
+	.emulate_mfspr = kvmppc_core_emulate_mfspr_e500,
+};
+
 static int __init kvmppc_e500_init(void)
 {
 	int r, i;
@@ -512,11 +533,11 @@ static int __init kvmppc_e500_init(void)
 
 	r = kvmppc_core_check_processor_compat();
 	if (r)
-		return r;
+		goto err_out;
 
 	r = kvmppc_booke_init();
 	if (r)
-		return r;
+		goto err_out;
 
 	/* copy extra E500 exception handlers */
 	ivor[0] = mfspr(SPRN_IVOR32);
@@ -534,7 +555,9 @@ static int __init kvmppc_e500_init(void)
 	flush_icache_range(kvmppc_booke_handlers, kvmppc_booke_handlers +
 			   ivor[max_ivor] + handler_len);
 
-	return kvm_init(NULL, sizeof(struct kvmppc_vcpu_e500), 0, THIS_MODULE);
+	r = kvm_init(&kvm_ops_e500, sizeof(struct kvmppc_vcpu_e500), 0, THIS_MODULE);
+err_out:
+	return r;
 }
 
 static void __exit kvmppc_e500_exit(void)
diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c
index 6163a0318d2a..89b7f821f6c4 100644
--- a/arch/powerpc/kvm/e500_emulate.c
+++ b/arch/powerpc/kvm/e500_emulate.c
@@ -103,8 +103,8 @@ static int kvmppc_e500_emul_ehpriv(struct kvm_run *run, struct kvm_vcpu *vcpu,
 	return emulated;
 }
 
-int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
-                           unsigned int inst, int *advance)
+int kvmppc_core_emulate_op_e500(struct kvm_run *run, struct kvm_vcpu *vcpu,
+				unsigned int inst, int *advance)
 {
 	int emulated = EMULATE_DONE;
 	int ra = get_ra(inst);
@@ -172,7 +172,7 @@ int kvmppc_core_emulate_op(struct kvm_run *run, struct kvm_vcpu *vcpu,
 	return emulated;
 }
 
-int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
+int kvmppc_core_emulate_mtspr_e500(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
 {
 	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
 	int emulated = EMULATE_DONE;
@@ -263,7 +263,7 @@ int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
 	return emulated;
 }
 
-int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val)
+int kvmppc_core_emulate_mfspr_e500(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val)
 {
 	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
 	int emulated = EMULATE_DONE;
diff --git a/arch/powerpc/kvm/e500_mmu.c b/arch/powerpc/kvm/e500_mmu.c
index 6d6f153b6c1d..d25bb75aec90 100644
--- a/arch/powerpc/kvm/e500_mmu.c
+++ b/arch/powerpc/kvm/e500_mmu.c
@@ -536,7 +536,7 @@ gpa_t kvmppc_mmu_xlate(struct kvm_vcpu *vcpu, unsigned int index,
 	return get_tlb_raddr(gtlbe) | (eaddr & pgmask);
 }
 
-void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
+void kvmppc_mmu_destroy_e500(struct kvm_vcpu *vcpu)
 {
 }
 
diff --git a/arch/powerpc/kvm/e500mc.c b/arch/powerpc/kvm/e500mc.c
index 19c8379575f7..db6a383401c7 100644
--- a/arch/powerpc/kvm/e500mc.c
+++ b/arch/powerpc/kvm/e500mc.c
@@ -110,7 +110,7 @@ void kvmppc_mmu_msr_notify(struct kvm_vcpu *vcpu, u32 old_msr)
 
 static DEFINE_PER_CPU(struct kvm_vcpu *, last_vcpu_on_cpu);
 
-void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
+static void kvmppc_core_vcpu_load_e500mc(struct kvm_vcpu *vcpu, int cpu)
 {
 	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
 
@@ -147,7 +147,7 @@ void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 	kvmppc_load_guest_fp(vcpu);
 }
 
-void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
+static void kvmppc_core_vcpu_put_e500mc(struct kvm_vcpu *vcpu)
 {
 	vcpu->arch.eplc = mfspr(SPRN_EPLC);
 	vcpu->arch.epsc = mfspr(SPRN_EPSC);
@@ -204,7 +204,8 @@ int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu)
 	return 0;
 }
 
-void kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
+static int kvmppc_core_get_sregs_e500mc(struct kvm_vcpu *vcpu,
+					struct kvm_sregs *sregs)
 {
 	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
 
@@ -224,10 +225,11 @@ void kvmppc_core_get_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
 	sregs->u.e.ivor_high[4] = vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL];
 	sregs->u.e.ivor_high[5] = vcpu->arch.ivor[BOOKE_IRQPRIO_DBELL_CRIT];
 
-	kvmppc_get_sregs_ivor(vcpu, sregs);
+	return kvmppc_get_sregs_ivor(vcpu, sregs);
 }
 
-int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
+static int kvmppc_core_set_sregs_e500mc(struct kvm_vcpu *vcpu,
+					struct kvm_sregs *sregs)
 {
 	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
 	int ret;
@@ -260,21 +262,22 @@ int kvmppc_core_set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
 	return kvmppc_set_sregs_ivor(vcpu, sregs);
 }
 
-int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id,
-			union kvmppc_one_reg *val)
+static int kvmppc_get_one_reg_e500mc(struct kvm_vcpu *vcpu, u64 id,
+			      union kvmppc_one_reg *val)
 {
 	int r = kvmppc_get_one_reg_e500_tlb(vcpu, id, val);
 	return r;
 }
 
-int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id,
-		       union kvmppc_one_reg *val)
+static int kvmppc_set_one_reg_e500mc(struct kvm_vcpu *vcpu, u64 id,
+			      union kvmppc_one_reg *val)
 {
 	int r = kvmppc_set_one_reg_e500_tlb(vcpu, id, val);
 	return r;
 }
 
-struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
+static struct kvm_vcpu *kvmppc_core_vcpu_create_e500mc(struct kvm *kvm,
+						       unsigned int id)
 {
 	struct kvmppc_vcpu_e500 *vcpu_e500;
 	struct kvm_vcpu *vcpu;
@@ -315,7 +318,7 @@ out:
 	return ERR_PTR(err);
 }
 
-void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
+static void kvmppc_core_vcpu_free_e500mc(struct kvm_vcpu *vcpu)
 {
 	struct kvmppc_vcpu_e500 *vcpu_e500 = to_e500(vcpu);
 
@@ -325,7 +328,7 @@ void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
 	kmem_cache_free(kvm_vcpu_cache, vcpu_e500);
 }
 
-int kvmppc_core_init_vm(struct kvm *kvm)
+static int kvmppc_core_init_vm_e500mc(struct kvm *kvm)
 {
 	int lpid;
 
@@ -337,23 +340,44 @@ int kvmppc_core_init_vm(struct kvm *kvm)
 	return 0;
 }
 
-void kvmppc_core_destroy_vm(struct kvm *kvm)
+static void kvmppc_core_destroy_vm_e500mc(struct kvm *kvm)
 {
 	kvmppc_free_lpid(kvm->arch.lpid);
 }
 
+static struct kvmppc_ops kvm_ops_e500mc = {
+	.get_sregs = kvmppc_core_get_sregs_e500mc,
+	.set_sregs = kvmppc_core_set_sregs_e500mc,
+	.get_one_reg = kvmppc_get_one_reg_e500mc,
+	.set_one_reg = kvmppc_set_one_reg_e500mc,
+	.vcpu_load   = kvmppc_core_vcpu_load_e500mc,
+	.vcpu_put    = kvmppc_core_vcpu_put_e500mc,
+	.vcpu_create = kvmppc_core_vcpu_create_e500mc,
+	.vcpu_free   = kvmppc_core_vcpu_free_e500mc,
+	.mmu_destroy  = kvmppc_mmu_destroy_e500,
+	.init_vm = kvmppc_core_init_vm_e500mc,
+	.destroy_vm = kvmppc_core_destroy_vm_e500mc,
+	.emulate_op = kvmppc_core_emulate_op_e500,
+	.emulate_mtspr = kvmppc_core_emulate_mtspr_e500,
+	.emulate_mfspr = kvmppc_core_emulate_mfspr_e500,
+};
+
 static int __init kvmppc_e500mc_init(void)
 {
 	int r;
 
 	r = kvmppc_booke_init();
 	if (r)
-		return r;
+		goto err_out;
 
 	kvmppc_init_lpid(64);
 	kvmppc_claim_lpid(0); /* host */
 
-	return kvm_init(NULL, sizeof(struct kvmppc_vcpu_e500), 0, THIS_MODULE);
+	r = kvm_init(&kvm_ops_e500mc, sizeof(struct kvmppc_vcpu_e500), 0, THIS_MODULE);
+	if (r)
+		goto err_out;
+err_out:
+	return r;
 }
 
 static void __exit kvmppc_e500mc_exit(void)
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index 751cd45f65a0..81762eb7957e 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -130,7 +130,7 @@ static int kvmppc_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
 	case SPRN_PIR: break;
 
 	default:
-		emulated = kvmppc_core_emulate_mtspr(vcpu, sprn,
+		emulated = kvmppc_ops->emulate_mtspr(vcpu, sprn,
 						     spr_val);
 		if (emulated == EMULATE_FAIL)
 			printk(KERN_INFO "mtspr: unknown spr "
@@ -191,7 +191,7 @@ static int kvmppc_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
 		spr_val = kvmppc_get_dec(vcpu, get_tb());
 		break;
 	default:
-		emulated = kvmppc_core_emulate_mfspr(vcpu, sprn,
+		emulated = kvmppc_ops->emulate_mfspr(vcpu, sprn,
 						     &spr_val);
 		if (unlikely(emulated == EMULATE_FAIL)) {
 			printk(KERN_INFO "mfspr: unknown spr "
@@ -464,7 +464,7 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
 	}
 
 	if (emulated == EMULATE_FAIL) {
-		emulated = kvmppc_core_emulate_op(run, vcpu, inst, &advance);
+		emulated = kvmppc_ops->emulate_op(run, vcpu, inst, &advance);
 		if (emulated == EMULATE_AGAIN) {
 			advance = 0;
 		} else if (emulated == EMULATE_FAIL) {
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 07c0106fab76..69b930550d2e 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -39,6 +39,8 @@
 #define CREATE_TRACE_POINTS
 #include "trace.h"
 
+struct kvmppc_ops *kvmppc_ops;
+
 int kvm_arch_vcpu_runnable(struct kvm_vcpu *v)
 {
 	return !!(v->arch.pending_exceptions) ||
@@ -1024,52 +1026,11 @@ long kvm_arch_vm_ioctl(struct file *filp,
 		r = kvm_vm_ioctl_create_spapr_tce(kvm, &create_tce);
 		goto out;
 	}
-#endif /* CONFIG_PPC_BOOK3S_64 */
-
-#ifdef CONFIG_KVM_BOOK3S_64_HV
-	case KVM_ALLOCATE_RMA: {
-		struct kvm_allocate_rma rma;
-		struct kvm *kvm = filp->private_data;
-
-		r = kvm_vm_ioctl_allocate_rma(kvm, &rma);
-		if (r >= 0 && copy_to_user(argp, &rma, sizeof(rma)))
-			r = -EFAULT;
-		break;
-	}
-
-	case KVM_PPC_ALLOCATE_HTAB: {
-		u32 htab_order;
-
-		r = -EFAULT;
-		if (get_user(htab_order, (u32 __user *)argp))
-			break;
-		r = kvmppc_alloc_reset_hpt(kvm, &htab_order);
-		if (r)
-			break;
-		r = -EFAULT;
-		if (put_user(htab_order, (u32 __user *)argp))
-			break;
-		r = 0;
-		break;
-	}
-
-	case KVM_PPC_GET_HTAB_FD: {
-		struct kvm_get_htab_fd ghf;
-
-		r = -EFAULT;
-		if (copy_from_user(&ghf, argp, sizeof(ghf)))
-			break;
-		r = kvm_vm_ioctl_get_htab_fd(kvm, &ghf);
-		break;
-	}
-#endif /* CONFIG_KVM_BOOK3S_64_HV */
-
-#ifdef CONFIG_PPC_BOOK3S_64
 	case KVM_PPC_GET_SMMU_INFO: {
 		struct kvm_ppc_smmu_info info;
 
 		memset(&info, 0, sizeof(info));
-		r = kvm_vm_ioctl_get_smmu_info(kvm, &info);
+		r = kvmppc_ops->get_smmu_info(kvm, &info);
 		if (r >= 0 && copy_to_user(argp, &info, sizeof(info)))
 			r = -EFAULT;
 		break;
@@ -1080,11 +1041,14 @@ long kvm_arch_vm_ioctl(struct file *filp,
 		r = kvm_vm_ioctl_rtas_define_token(kvm, argp);
 		break;
 	}
-#endif /* CONFIG_PPC_BOOK3S_64 */
+	default:
+		r = kvmppc_ops->arch_vm_ioctl(filp, ioctl, arg);
+
+#else /* CONFIG_PPC_BOOK3S_64 */
 	default:
 		r = -ENOTTY;
+#endif
 	}
-
 out:
 	return r;
 }
@@ -1125,9 +1089,15 @@ void kvmppc_init_lpid(unsigned long nr_lpids_param)
 
 int kvm_arch_init(void *opaque)
 {
+	if (kvmppc_ops) {
+		printk(KERN_ERR "kvm: already loaded the other module\n");
+		return -EEXIST;
+	}
+	kvmppc_ops = (struct kvmppc_ops *)opaque;
 	return 0;
 }
 
 void kvm_arch_exit(void)
 {
+	kvmppc_ops = NULL;
 }
-- 
cgit 


From dd96b2c2dc408faf2213bc0a05897c1359f7969c Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Date: Mon, 7 Oct 2013 22:17:55 +0530
Subject: kvm: powerpc: book3s: Cleanup interrupt handling code

With this patch if HV is included, interrupts come in to the HV version
of the kvmppc_interrupt code, which then jumps to the PR handler,
renamed to kvmppc_interrupt_pr, if the guest is a PR guest. This helps
in enabling both HV and PR, which we do in later patch

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/exception-64s.h | 11 +++++++++++
 arch/powerpc/kvm/book3s_hv_rmhandlers.S  |  9 +++++++--
 arch/powerpc/kvm/book3s_segment.S        |  4 ++--
 3 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h
index a22c9854a633..894662a5d4d5 100644
--- a/arch/powerpc/include/asm/exception-64s.h
+++ b/arch/powerpc/include/asm/exception-64s.h
@@ -198,6 +198,17 @@ END_FTR_SECTION_NESTED(ftr,ftr,943)
 	cmpwi	r10,0;							\
 	bne	do_kvm_##n
 
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+/*
+ * If hv is possible, interrupts come into to the hv version
+ * of the kvmppc_interrupt code, which then jumps to the PR handler,
+ * kvmppc_interrupt_pr, if the guest is a PR guest.
+ */
+#define kvmppc_interrupt kvmppc_interrupt_hv
+#else
+#define kvmppc_interrupt kvmppc_interrupt_pr
+#endif
+
 #define __KVM_HANDLER(area, h, n)					\
 do_kvm_##n:								\
 	BEGIN_FTR_SECTION_NESTED(947)					\
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 84105eb18a0e..f7e24c6cb8eb 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -742,8 +742,8 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
 /*
  * We come here from the first-level interrupt handlers.
  */
-	.globl	kvmppc_interrupt
-kvmppc_interrupt:
+	.globl	kvmppc_interrupt_hv
+kvmppc_interrupt_hv:
 	/*
 	 * Register contents:
 	 * R12		= interrupt vector
@@ -757,6 +757,11 @@ kvmppc_interrupt:
 	lbz	r9, HSTATE_IN_GUEST(r13)
 	cmpwi	r9, KVM_GUEST_MODE_HOST_HV
 	beq	kvmppc_bad_host_intr
+#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
+	cmpwi	r9, KVM_GUEST_MODE_GUEST
+	ld	r9, HSTATE_HOST_R2(r13)
+	beq	kvmppc_interrupt_pr
+#endif
 	/* We're now back in the host but in guest MMU context */
 	li	r9, KVM_GUEST_MODE_HOST_HV
 	stb	r9, HSTATE_IN_GUEST(r13)
diff --git a/arch/powerpc/kvm/book3s_segment.S b/arch/powerpc/kvm/book3s_segment.S
index 1abe4788191a..bc50c97751d3 100644
--- a/arch/powerpc/kvm/book3s_segment.S
+++ b/arch/powerpc/kvm/book3s_segment.S
@@ -161,8 +161,8 @@ kvmppc_handler_trampoline_enter_end:
 .global kvmppc_handler_trampoline_exit
 kvmppc_handler_trampoline_exit:
 
-.global kvmppc_interrupt
-kvmppc_interrupt:
+.global kvmppc_interrupt_pr
+kvmppc_interrupt_pr:
 
 	/* Register usage at this point:
 	 *
-- 
cgit 


From 699cc87641c123128bf3a4e12c0a8d739b1ac2f3 Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Date: Mon, 7 Oct 2013 22:17:56 +0530
Subject: kvm: powerpc: book3s: Add is_hv_enabled to kvmppc_ops

This help us to identify whether we are running with hypervisor mode KVM
enabled. The change is needed so that we can have both HV and PR kvm
enabled in the same kernel.

If both HV and PR KVM are included, interrupts come in to the HV version
of the kvmppc_interrupt code, which then jumps to the PR handler,
renamed to kvmppc_interrupt_pr, if the guest is a PR guest.

Allowing both PR and HV in the same kernel required some changes to
kvm_dev_ioctl_check_extension(), since the values returned now can't
be selected with #ifdefs as much as previously. We look at is_hv_enabled
to return the right value when checking for capabilities.For capabilities that
are only provided by HV KVM, we return the HV value only if
is_hv_enabled is true. For capabilities provided by PR KVM but not HV,
we return the PR value only if is_hv_enabled is false.

NOTE: in later patch we replace is_hv_enabled with a static inline
function comparing kvm_ppc_ops

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/kvm_book3s.h | 53 ----------------------------------
 arch/powerpc/include/asm/kvm_ppc.h    |  5 ++--
 arch/powerpc/kvm/book3s.c             | 44 ++++++++++++++++++++++++++++
 arch/powerpc/kvm/book3s_hv.c          |  1 +
 arch/powerpc/kvm/book3s_pr.c          |  1 +
 arch/powerpc/kvm/book3s_xics.c        |  2 +-
 arch/powerpc/kvm/powerpc.c            | 54 +++++++++++++++++++----------------
 7 files changed, 79 insertions(+), 81 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h
index 315a5d692417..4a594b76674d 100644
--- a/arch/powerpc/include/asm/kvm_book3s.h
+++ b/arch/powerpc/include/asm/kvm_book3s.h
@@ -301,59 +301,6 @@ static inline ulong kvmppc_get_fault_dar(struct kvm_vcpu *vcpu)
 	return vcpu->arch.fault_dar;
 }
 
-#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
-
-static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
-{
-	return to_book3s(vcpu)->hior;
-}
-
-static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
-			unsigned long pending_now, unsigned long old_pending)
-{
-	if (pending_now)
-		vcpu->arch.shared->int_pending = 1;
-	else if (old_pending)
-		vcpu->arch.shared->int_pending = 0;
-}
-
-static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
-{
-	ulong crit_raw = vcpu->arch.shared->critical;
-	ulong crit_r1 = kvmppc_get_gpr(vcpu, 1);
-	bool crit;
-
-	/* Truncate crit indicators in 32 bit mode */
-	if (!(vcpu->arch.shared->msr & MSR_SF)) {
-		crit_raw &= 0xffffffff;
-		crit_r1 &= 0xffffffff;
-	}
-
-	/* Critical section when crit == r1 */
-	crit = (crit_raw == crit_r1);
-	/* ... and we're in supervisor mode */
-	crit = crit && !(vcpu->arch.shared->msr & MSR_PR);
-
-	return crit;
-}
-#else /* CONFIG_KVM_BOOK3S_PR_POSSIBLE */
-
-static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
-{
-	return 0;
-}
-
-static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
-			unsigned long pending_now, unsigned long old_pending)
-{
-}
-
-static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
-{
-	return false;
-}
-#endif
-
 /* Magic register values loaded into r3 and r4 before the 'sc' assembly
  * instruction for the OSI hypercalls */
 #define OSI_SC_MAGIC_R3			0x113724FA
diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h
index 326033c99385..c13f15db476c 100644
--- a/arch/powerpc/include/asm/kvm_ppc.h
+++ b/arch/powerpc/include/asm/kvm_ppc.h
@@ -180,6 +180,7 @@ union kvmppc_one_reg {
 };
 
 struct kvmppc_ops {
+	bool is_hv_enabled;
 	int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
 	int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
 	int (*get_one_reg)(struct kvm_vcpu *vcpu, u64 id,
@@ -309,10 +310,10 @@ static inline void kvmppc_set_xics_phys(int cpu, unsigned long addr)
 
 static inline u32 kvmppc_get_xics_latch(void)
 {
-	u32 xirr = get_paca()->kvm_hstate.saved_xirr;
+	u32 xirr;
 
+	xirr = get_paca()->kvm_hstate.saved_xirr;
 	get_paca()->kvm_hstate.saved_xirr = 0;
-
 	return xirr;
 }
 
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index 784a1d5ccb04..493aff77f84e 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -69,6 +69,50 @@ void kvmppc_core_load_guest_debugstate(struct kvm_vcpu *vcpu)
 {
 }
 
+static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
+{
+	if (!kvmppc_ops->is_hv_enabled)
+		return to_book3s(vcpu)->hior;
+	return 0;
+}
+
+static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
+			unsigned long pending_now, unsigned long old_pending)
+{
+	if (kvmppc_ops->is_hv_enabled)
+		return;
+	if (pending_now)
+		vcpu->arch.shared->int_pending = 1;
+	else if (old_pending)
+		vcpu->arch.shared->int_pending = 0;
+}
+
+static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
+{
+	ulong crit_raw;
+	ulong crit_r1;
+	bool crit;
+
+	if (kvmppc_ops->is_hv_enabled)
+		return false;
+
+	crit_raw = vcpu->arch.shared->critical;
+	crit_r1 = kvmppc_get_gpr(vcpu, 1);
+
+	/* Truncate crit indicators in 32 bit mode */
+	if (!(vcpu->arch.shared->msr & MSR_SF)) {
+		crit_raw &= 0xffffffff;
+		crit_r1 &= 0xffffffff;
+	}
+
+	/* Critical section when crit == r1 */
+	crit = (crit_raw == crit_r1);
+	/* ... and we're in supervisor mode */
+	crit = crit && !(vcpu->arch.shared->msr & MSR_PR);
+
+	return crit;
+}
+
 void kvmppc_inject_interrupt(struct kvm_vcpu *vcpu, int vec, u64 flags)
 {
 	vcpu->arch.shared->srr0 = kvmppc_get_pc(vcpu);
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 3d7079a08d2a..0782c8688c8b 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -2159,6 +2159,7 @@ static long kvm_arch_vm_ioctl_hv(struct file *filp,
 }
 
 static struct kvmppc_ops kvmppc_hv_ops = {
+	.is_hv_enabled = true,
 	.get_sregs = kvm_arch_vcpu_ioctl_get_sregs_hv,
 	.set_sregs = kvm_arch_vcpu_ioctl_set_sregs_hv,
 	.get_one_reg = kvmppc_get_one_reg_hv,
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 05d28cf4a06c..b6a525d7b5c3 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -1523,6 +1523,7 @@ static long kvm_arch_vm_ioctl_pr(struct file *filp,
 }
 
 static struct kvmppc_ops kvmppc_pr_ops = {
+	.is_hv_enabled = false,
 	.get_sregs = kvm_arch_vcpu_ioctl_get_sregs_pr,
 	.set_sregs = kvm_arch_vcpu_ioctl_set_sregs_pr,
 	.get_one_reg = kvmppc_get_one_reg_pr,
diff --git a/arch/powerpc/kvm/book3s_xics.c b/arch/powerpc/kvm/book3s_xics.c
index 51ed1ea440e0..cef3de96ff6c 100644
--- a/arch/powerpc/kvm/book3s_xics.c
+++ b/arch/powerpc/kvm/book3s_xics.c
@@ -818,7 +818,7 @@ int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 req)
 	}
 
 	/* Check for real mode returning too hard */
-	if (xics->real_mode)
+	if (xics->real_mode && kvmppc_ops->is_hv_enabled)
 		return kvmppc_xics_rm_complete(vcpu, req);
 
 	switch (req) {
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 69b930550d2e..874a2a5e6cec 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -52,7 +52,6 @@ int kvm_arch_vcpu_should_kick(struct kvm_vcpu *vcpu)
 	return 1;
 }
 
-#ifndef CONFIG_KVM_BOOK3S_64_HV
 /*
  * Common checks before entering the guest world.  Call with interrupts
  * disabled.
@@ -127,7 +126,6 @@ int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu)
 
 	return r;
 }
-#endif /* CONFIG_KVM_BOOK3S_64_HV */
 
 int kvmppc_kvm_pv(struct kvm_vcpu *vcpu)
 {
@@ -194,11 +192,9 @@ int kvmppc_sanity_check(struct kvm_vcpu *vcpu)
 	if ((vcpu->arch.cpu_type != KVM_CPU_3S_64) && vcpu->arch.papr_enabled)
 		goto out;
 
-#ifdef CONFIG_KVM_BOOK3S_64_HV
 	/* HV KVM can only do PAPR mode for now */
-	if (!vcpu->arch.papr_enabled)
+	if (!vcpu->arch.papr_enabled && kvmppc_ops->is_hv_enabled)
 		goto out;
-#endif
 
 #ifdef CONFIG_KVM_BOOKE_HV
 	if (!cpu_has_feature(CPU_FTR_EMB_HV))
@@ -322,22 +318,26 @@ int kvm_dev_ioctl_check_extension(long ext)
 	case KVM_CAP_DEVICE_CTRL:
 		r = 1;
 		break;
-#ifndef CONFIG_KVM_BOOK3S_64_HV
 	case KVM_CAP_PPC_PAIRED_SINGLES:
 	case KVM_CAP_PPC_OSI:
 	case KVM_CAP_PPC_GET_PVINFO:
 #if defined(CONFIG_KVM_E500V2) || defined(CONFIG_KVM_E500MC)
 	case KVM_CAP_SW_TLB:
 #endif
-#ifdef CONFIG_KVM_MPIC
-	case KVM_CAP_IRQ_MPIC:
-#endif
-		r = 1;
+		/* We support this only for PR */
+		r = !kvmppc_ops->is_hv_enabled;
 		break;
+#ifdef CONFIG_KVM_MMIO
 	case KVM_CAP_COALESCED_MMIO:
 		r = KVM_COALESCED_MMIO_PAGE_OFFSET;
 		break;
 #endif
+#ifdef CONFIG_KVM_MPIC
+	case KVM_CAP_IRQ_MPIC:
+		r = 1;
+		break;
+#endif
+
 #ifdef CONFIG_PPC_BOOK3S_64
 	case KVM_CAP_SPAPR_TCE:
 	case KVM_CAP_PPC_ALLOC_HTAB:
@@ -348,32 +348,37 @@ int kvm_dev_ioctl_check_extension(long ext)
 		r = 1;
 		break;
 #endif /* CONFIG_PPC_BOOK3S_64 */
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 	case KVM_CAP_PPC_SMT:
-		r = threads_per_core;
+		if (kvmppc_ops->is_hv_enabled)
+			r = threads_per_core;
+		else
+			r = 0;
 		break;
 	case KVM_CAP_PPC_RMA:
-		r = 1;
+		r = kvmppc_ops->is_hv_enabled;
 		/* PPC970 requires an RMA */
-		if (cpu_has_feature(CPU_FTR_ARCH_201))
+		if (r && cpu_has_feature(CPU_FTR_ARCH_201))
 			r = 2;
 		break;
 #endif
 	case KVM_CAP_SYNC_MMU:
-#ifdef CONFIG_KVM_BOOK3S_64_HV
-		r = cpu_has_feature(CPU_FTR_ARCH_206) ? 1 : 0;
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+		if (kvmppc_ops->is_hv_enabled)
+			r = cpu_has_feature(CPU_FTR_ARCH_206) ? 1 : 0;
+		else
+			r = 0;
 #elif defined(KVM_ARCH_WANT_MMU_NOTIFIER)
 		r = 1;
 #else
 		r = 0;
-		break;
 #endif
-#ifdef CONFIG_KVM_BOOK3S_64_HV
+		break;
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 	case KVM_CAP_PPC_HTAB_FD:
-		r = 1;
+		r = kvmppc_ops->is_hv_enabled;
 		break;
 #endif
-		break;
 	case KVM_CAP_NR_VCPUS:
 		/*
 		 * Recommending a number of CPUs is somewhat arbitrary; we
@@ -381,11 +386,10 @@ int kvm_dev_ioctl_check_extension(long ext)
 		 * will have secondary threads "offline"), and for other KVM
 		 * implementations just count online CPUs.
 		 */
-#ifdef CONFIG_KVM_BOOK3S_64_HV
-		r = num_present_cpus();
-#else
-		r = num_online_cpus();
-#endif
+		if (kvmppc_ops->is_hv_enabled)
+			r = num_present_cpus();
+		else
+			r = num_online_cpus();
 		break;
 	case KVM_CAP_MAX_VCPUS:
 		r = KVM_MAX_VCPUS;
-- 
cgit 


From 72c1253574a1854b0b6f196e24cd0dd08c1ad9b9 Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Date: Mon, 7 Oct 2013 22:17:57 +0530
Subject: kvm: powerpc: book3s: pr: move PR related tracepoints to a separate
 header

This patch moves PR related tracepoints to a separate header. This
enables in converting PR to a kernel module which will be done in
later patches

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/book3s_64_mmu_host.c |   2 +-
 arch/powerpc/kvm/book3s_mmu_hpte.c    |   2 +-
 arch/powerpc/kvm/book3s_pr.c          |   4 +-
 arch/powerpc/kvm/trace.h              | 234 +--------------------------
 arch/powerpc/kvm/trace_pr.h           | 297 ++++++++++++++++++++++++++++++++++
 5 files changed, 309 insertions(+), 230 deletions(-)
 create mode 100644 arch/powerpc/kvm/trace_pr.h

diff --git a/arch/powerpc/kvm/book3s_64_mmu_host.c b/arch/powerpc/kvm/book3s_64_mmu_host.c
index 819672c9d787..0d513af62bba 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_host.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_host.c
@@ -27,7 +27,7 @@
 #include <asm/machdep.h>
 #include <asm/mmu_context.h>
 #include <asm/hw_irq.h>
-#include "trace.h"
+#include "trace_pr.h"
 
 #define PTE_SIZE 12
 
diff --git a/arch/powerpc/kvm/book3s_mmu_hpte.c b/arch/powerpc/kvm/book3s_mmu_hpte.c
index 6b79bfc44ba5..5a1ab1250a05 100644
--- a/arch/powerpc/kvm/book3s_mmu_hpte.c
+++ b/arch/powerpc/kvm/book3s_mmu_hpte.c
@@ -28,7 +28,7 @@
 #include <asm/mmu_context.h>
 #include <asm/hw_irq.h>
 
-#include "trace.h"
+#include "trace_pr.h"
 
 #define PTE_SIZE	12
 
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index b6a525d7b5c3..ca6c73d2ee77 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -42,7 +42,9 @@
 #include <linux/highmem.h>
 
 #include "book3s.h"
-#include "trace.h"
+
+#define CREATE_TRACE_POINTS
+#include "trace_pr.h"
 
 /* #define EXIT_DEBUG */
 /* #define DEBUG_EXT */
diff --git a/arch/powerpc/kvm/trace.h b/arch/powerpc/kvm/trace.h
index 9e8368edf371..80f252af6cb8 100644
--- a/arch/powerpc/kvm/trace.h
+++ b/arch/powerpc/kvm/trace.h
@@ -85,6 +85,12 @@ TRACE_EVENT(kvm_ppc_instr,
 	{41, "HV_PRIV"}
 #endif
 
+#ifndef CONFIG_KVM_BOOK3S_PR_POSSIBLE
+/*
+ * For pr we define this in trace_pr.h since it pr can be built as
+ * a module
+ */
+
 TRACE_EVENT(kvm_exit,
 	TP_PROTO(unsigned int exit_nr, struct kvm_vcpu *vcpu),
 	TP_ARGS(exit_nr, vcpu),
@@ -94,9 +100,6 @@ TRACE_EVENT(kvm_exit,
 		__field(	unsigned long,	pc		)
 		__field(	unsigned long,	msr		)
 		__field(	unsigned long,	dar		)
-#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
-		__field(	unsigned long,	srr1		)
-#endif
 		__field(	unsigned long,	last_inst	)
 	),
 
@@ -105,9 +108,6 @@ TRACE_EVENT(kvm_exit,
 		__entry->pc		= kvmppc_get_pc(vcpu);
 		__entry->dar		= kvmppc_get_fault_dar(vcpu);
 		__entry->msr		= vcpu->arch.shared->msr;
-#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
-		__entry->srr1		= vcpu->arch.shadow_srr1;
-#endif
 		__entry->last_inst	= vcpu->arch.last_inst;
 	),
 
@@ -115,18 +115,12 @@ TRACE_EVENT(kvm_exit,
 		" | pc=0x%lx"
 		" | msr=0x%lx"
 		" | dar=0x%lx"
-#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
-		" | srr1=0x%lx"
-#endif
 		" | last_inst=0x%lx"
 		,
 		__print_symbolic(__entry->exit_nr, kvm_trace_symbol_exit),
 		__entry->pc,
 		__entry->msr,
 		__entry->dar,
-#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
-		__entry->srr1,
-#endif
 		__entry->last_inst
 		)
 );
@@ -145,6 +139,7 @@ TRACE_EVENT(kvm_unmap_hva,
 
 	TP_printk("unmap hva 0x%lx\n", __entry->hva)
 );
+#endif
 
 TRACE_EVENT(kvm_stlb_inval,
 	TP_PROTO(unsigned int stlb_index),
@@ -231,221 +226,6 @@ TRACE_EVENT(kvm_check_requests,
 		__entry->cpu_nr, __entry->requests)
 );
 
-
-/*************************************************************************
- *                         Book3S trace points                           *
- *************************************************************************/
-
-#ifdef CONFIG_KVM_BOOK3S_PR_POSSIBLE
-
-TRACE_EVENT(kvm_book3s_reenter,
-	TP_PROTO(int r, struct kvm_vcpu *vcpu),
-	TP_ARGS(r, vcpu),
-
-	TP_STRUCT__entry(
-		__field(	unsigned int,	r		)
-		__field(	unsigned long,	pc		)
-	),
-
-	TP_fast_assign(
-		__entry->r		= r;
-		__entry->pc		= kvmppc_get_pc(vcpu);
-	),
-
-	TP_printk("reentry r=%d | pc=0x%lx", __entry->r, __entry->pc)
-);
-
-#ifdef CONFIG_PPC_BOOK3S_64
-
-TRACE_EVENT(kvm_book3s_64_mmu_map,
-	TP_PROTO(int rflags, ulong hpteg, ulong va, pfn_t hpaddr,
-		 struct kvmppc_pte *orig_pte),
-	TP_ARGS(rflags, hpteg, va, hpaddr, orig_pte),
-
-	TP_STRUCT__entry(
-		__field(	unsigned char,		flag_w		)
-		__field(	unsigned char,		flag_x		)
-		__field(	unsigned long,		eaddr		)
-		__field(	unsigned long,		hpteg		)
-		__field(	unsigned long,		va		)
-		__field(	unsigned long long,	vpage		)
-		__field(	unsigned long,		hpaddr		)
-	),
-
-	TP_fast_assign(
-		__entry->flag_w	= ((rflags & HPTE_R_PP) == 3) ? '-' : 'w';
-		__entry->flag_x	= (rflags & HPTE_R_N) ? '-' : 'x';
-		__entry->eaddr	= orig_pte->eaddr;
-		__entry->hpteg	= hpteg;
-		__entry->va	= va;
-		__entry->vpage	= orig_pte->vpage;
-		__entry->hpaddr	= hpaddr;
-	),
-
-	TP_printk("KVM: %c%c Map 0x%lx: [%lx] 0x%lx (0x%llx) -> %lx",
-		  __entry->flag_w, __entry->flag_x, __entry->eaddr,
-		  __entry->hpteg, __entry->va, __entry->vpage, __entry->hpaddr)
-);
-
-#endif /* CONFIG_PPC_BOOK3S_64 */
-
-TRACE_EVENT(kvm_book3s_mmu_map,
-	TP_PROTO(struct hpte_cache *pte),
-	TP_ARGS(pte),
-
-	TP_STRUCT__entry(
-		__field(	u64,		host_vpn	)
-		__field(	u64,		pfn		)
-		__field(	ulong,		eaddr		)
-		__field(	u64,		vpage		)
-		__field(	ulong,		raddr		)
-		__field(	int,		flags		)
-	),
-
-	TP_fast_assign(
-		__entry->host_vpn	= pte->host_vpn;
-		__entry->pfn		= pte->pfn;
-		__entry->eaddr		= pte->pte.eaddr;
-		__entry->vpage		= pte->pte.vpage;
-		__entry->raddr		= pte->pte.raddr;
-		__entry->flags		= (pte->pte.may_read ? 0x4 : 0) |
-					  (pte->pte.may_write ? 0x2 : 0) |
-					  (pte->pte.may_execute ? 0x1 : 0);
-	),
-
-	TP_printk("Map: hvpn=%llx pfn=%llx ea=%lx vp=%llx ra=%lx [%x]",
-		  __entry->host_vpn, __entry->pfn, __entry->eaddr,
-		  __entry->vpage, __entry->raddr, __entry->flags)
-);
-
-TRACE_EVENT(kvm_book3s_mmu_invalidate,
-	TP_PROTO(struct hpte_cache *pte),
-	TP_ARGS(pte),
-
-	TP_STRUCT__entry(
-		__field(	u64,		host_vpn	)
-		__field(	u64,		pfn		)
-		__field(	ulong,		eaddr		)
-		__field(	u64,		vpage		)
-		__field(	ulong,		raddr		)
-		__field(	int,		flags		)
-	),
-
-	TP_fast_assign(
-		__entry->host_vpn	= pte->host_vpn;
-		__entry->pfn		= pte->pfn;
-		__entry->eaddr		= pte->pte.eaddr;
-		__entry->vpage		= pte->pte.vpage;
-		__entry->raddr		= pte->pte.raddr;
-		__entry->flags		= (pte->pte.may_read ? 0x4 : 0) |
-					  (pte->pte.may_write ? 0x2 : 0) |
-					  (pte->pte.may_execute ? 0x1 : 0);
-	),
-
-	TP_printk("Flush: hva=%llx pfn=%llx ea=%lx vp=%llx ra=%lx [%x]",
-		  __entry->host_vpn, __entry->pfn, __entry->eaddr,
-		  __entry->vpage, __entry->raddr, __entry->flags)
-);
-
-TRACE_EVENT(kvm_book3s_mmu_flush,
-	TP_PROTO(const char *type, struct kvm_vcpu *vcpu, unsigned long long p1,
-		 unsigned long long p2),
-	TP_ARGS(type, vcpu, p1, p2),
-
-	TP_STRUCT__entry(
-		__field(	int,			count		)
-		__field(	unsigned long long,	p1		)
-		__field(	unsigned long long,	p2		)
-		__field(	const char *,		type		)
-	),
-
-	TP_fast_assign(
-		__entry->count		= to_book3s(vcpu)->hpte_cache_count;
-		__entry->p1		= p1;
-		__entry->p2		= p2;
-		__entry->type		= type;
-	),
-
-	TP_printk("Flush %d %sPTEs: %llx - %llx",
-		  __entry->count, __entry->type, __entry->p1, __entry->p2)
-);
-
-TRACE_EVENT(kvm_book3s_slb_found,
-	TP_PROTO(unsigned long long gvsid, unsigned long long hvsid),
-	TP_ARGS(gvsid, hvsid),
-
-	TP_STRUCT__entry(
-		__field(	unsigned long long,	gvsid		)
-		__field(	unsigned long long,	hvsid		)
-	),
-
-	TP_fast_assign(
-		__entry->gvsid		= gvsid;
-		__entry->hvsid		= hvsid;
-	),
-
-	TP_printk("%llx -> %llx", __entry->gvsid, __entry->hvsid)
-);
-
-TRACE_EVENT(kvm_book3s_slb_fail,
-	TP_PROTO(u16 sid_map_mask, unsigned long long gvsid),
-	TP_ARGS(sid_map_mask, gvsid),
-
-	TP_STRUCT__entry(
-		__field(	unsigned short,		sid_map_mask	)
-		__field(	unsigned long long,	gvsid		)
-	),
-
-	TP_fast_assign(
-		__entry->sid_map_mask	= sid_map_mask;
-		__entry->gvsid		= gvsid;
-	),
-
-	TP_printk("%x/%x: %llx", __entry->sid_map_mask,
-		  SID_MAP_MASK - __entry->sid_map_mask, __entry->gvsid)
-);
-
-TRACE_EVENT(kvm_book3s_slb_map,
-	TP_PROTO(u16 sid_map_mask, unsigned long long gvsid,
-		 unsigned long long hvsid),
-	TP_ARGS(sid_map_mask, gvsid, hvsid),
-
-	TP_STRUCT__entry(
-		__field(	unsigned short,		sid_map_mask	)
-		__field(	unsigned long long,	guest_vsid	)
-		__field(	unsigned long long,	host_vsid	)
-	),
-
-	TP_fast_assign(
-		__entry->sid_map_mask	= sid_map_mask;
-		__entry->guest_vsid	= gvsid;
-		__entry->host_vsid	= hvsid;
-	),
-
-	TP_printk("%x: %llx -> %llx", __entry->sid_map_mask,
-		  __entry->guest_vsid, __entry->host_vsid)
-);
-
-TRACE_EVENT(kvm_book3s_slbmte,
-	TP_PROTO(u64 slb_vsid, u64 slb_esid),
-	TP_ARGS(slb_vsid, slb_esid),
-
-	TP_STRUCT__entry(
-		__field(	u64,	slb_vsid	)
-		__field(	u64,	slb_esid	)
-	),
-
-	TP_fast_assign(
-		__entry->slb_vsid	= slb_vsid;
-		__entry->slb_esid	= slb_esid;
-	),
-
-	TP_printk("%llx, %llx", __entry->slb_vsid, __entry->slb_esid)
-);
-
-#endif /* CONFIG_PPC_BOOK3S */
-
-
 /*************************************************************************
  *                         Book3E trace points                           *
  *************************************************************************/
diff --git a/arch/powerpc/kvm/trace_pr.h b/arch/powerpc/kvm/trace_pr.h
new file mode 100644
index 000000000000..8b22e4748344
--- /dev/null
+++ b/arch/powerpc/kvm/trace_pr.h
@@ -0,0 +1,297 @@
+
+#if !defined(_TRACE_KVM_PR_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_KVM_PR_H
+
+#include <linux/tracepoint.h>
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM kvm_pr
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE trace_pr
+
+#define kvm_trace_symbol_exit \
+	{0x100, "SYSTEM_RESET"}, \
+	{0x200, "MACHINE_CHECK"}, \
+	{0x300, "DATA_STORAGE"}, \
+	{0x380, "DATA_SEGMENT"}, \
+	{0x400, "INST_STORAGE"}, \
+	{0x480, "INST_SEGMENT"}, \
+	{0x500, "EXTERNAL"}, \
+	{0x501, "EXTERNAL_LEVEL"}, \
+	{0x502, "EXTERNAL_HV"}, \
+	{0x600, "ALIGNMENT"}, \
+	{0x700, "PROGRAM"}, \
+	{0x800, "FP_UNAVAIL"}, \
+	{0x900, "DECREMENTER"}, \
+	{0x980, "HV_DECREMENTER"}, \
+	{0xc00, "SYSCALL"}, \
+	{0xd00, "TRACE"}, \
+	{0xe00, "H_DATA_STORAGE"}, \
+	{0xe20, "H_INST_STORAGE"}, \
+	{0xe40, "H_EMUL_ASSIST"}, \
+	{0xf00, "PERFMON"}, \
+	{0xf20, "ALTIVEC"}, \
+	{0xf40, "VSX"}
+
+TRACE_EVENT(kvm_book3s_reenter,
+	TP_PROTO(int r, struct kvm_vcpu *vcpu),
+	TP_ARGS(r, vcpu),
+
+	TP_STRUCT__entry(
+		__field(	unsigned int,	r		)
+		__field(	unsigned long,	pc		)
+	),
+
+	TP_fast_assign(
+		__entry->r		= r;
+		__entry->pc		= kvmppc_get_pc(vcpu);
+	),
+
+	TP_printk("reentry r=%d | pc=0x%lx", __entry->r, __entry->pc)
+);
+
+#ifdef CONFIG_PPC_BOOK3S_64
+
+TRACE_EVENT(kvm_book3s_64_mmu_map,
+	TP_PROTO(int rflags, ulong hpteg, ulong va, pfn_t hpaddr,
+		 struct kvmppc_pte *orig_pte),
+	TP_ARGS(rflags, hpteg, va, hpaddr, orig_pte),
+
+	TP_STRUCT__entry(
+		__field(	unsigned char,		flag_w		)
+		__field(	unsigned char,		flag_x		)
+		__field(	unsigned long,		eaddr		)
+		__field(	unsigned long,		hpteg		)
+		__field(	unsigned long,		va		)
+		__field(	unsigned long long,	vpage		)
+		__field(	unsigned long,		hpaddr		)
+	),
+
+	TP_fast_assign(
+		__entry->flag_w	= ((rflags & HPTE_R_PP) == 3) ? '-' : 'w';
+		__entry->flag_x	= (rflags & HPTE_R_N) ? '-' : 'x';
+		__entry->eaddr	= orig_pte->eaddr;
+		__entry->hpteg	= hpteg;
+		__entry->va	= va;
+		__entry->vpage	= orig_pte->vpage;
+		__entry->hpaddr	= hpaddr;
+	),
+
+	TP_printk("KVM: %c%c Map 0x%lx: [%lx] 0x%lx (0x%llx) -> %lx",
+		  __entry->flag_w, __entry->flag_x, __entry->eaddr,
+		  __entry->hpteg, __entry->va, __entry->vpage, __entry->hpaddr)
+);
+
+#endif /* CONFIG_PPC_BOOK3S_64 */
+
+TRACE_EVENT(kvm_book3s_mmu_map,
+	TP_PROTO(struct hpte_cache *pte),
+	TP_ARGS(pte),
+
+	TP_STRUCT__entry(
+		__field(	u64,		host_vpn	)
+		__field(	u64,		pfn		)
+		__field(	ulong,		eaddr		)
+		__field(	u64,		vpage		)
+		__field(	ulong,		raddr		)
+		__field(	int,		flags		)
+	),
+
+	TP_fast_assign(
+		__entry->host_vpn	= pte->host_vpn;
+		__entry->pfn		= pte->pfn;
+		__entry->eaddr		= pte->pte.eaddr;
+		__entry->vpage		= pte->pte.vpage;
+		__entry->raddr		= pte->pte.raddr;
+		__entry->flags		= (pte->pte.may_read ? 0x4 : 0) |
+					  (pte->pte.may_write ? 0x2 : 0) |
+					  (pte->pte.may_execute ? 0x1 : 0);
+	),
+
+	TP_printk("Map: hvpn=%llx pfn=%llx ea=%lx vp=%llx ra=%lx [%x]",
+		  __entry->host_vpn, __entry->pfn, __entry->eaddr,
+		  __entry->vpage, __entry->raddr, __entry->flags)
+);
+
+TRACE_EVENT(kvm_book3s_mmu_invalidate,
+	TP_PROTO(struct hpte_cache *pte),
+	TP_ARGS(pte),
+
+	TP_STRUCT__entry(
+		__field(	u64,		host_vpn	)
+		__field(	u64,		pfn		)
+		__field(	ulong,		eaddr		)
+		__field(	u64,		vpage		)
+		__field(	ulong,		raddr		)
+		__field(	int,		flags		)
+	),
+
+	TP_fast_assign(
+		__entry->host_vpn	= pte->host_vpn;
+		__entry->pfn		= pte->pfn;
+		__entry->eaddr		= pte->pte.eaddr;
+		__entry->vpage		= pte->pte.vpage;
+		__entry->raddr		= pte->pte.raddr;
+		__entry->flags		= (pte->pte.may_read ? 0x4 : 0) |
+					  (pte->pte.may_write ? 0x2 : 0) |
+					  (pte->pte.may_execute ? 0x1 : 0);
+	),
+
+	TP_printk("Flush: hva=%llx pfn=%llx ea=%lx vp=%llx ra=%lx [%x]",
+		  __entry->host_vpn, __entry->pfn, __entry->eaddr,
+		  __entry->vpage, __entry->raddr, __entry->flags)
+);
+
+TRACE_EVENT(kvm_book3s_mmu_flush,
+	TP_PROTO(const char *type, struct kvm_vcpu *vcpu, unsigned long long p1,
+		 unsigned long long p2),
+	TP_ARGS(type, vcpu, p1, p2),
+
+	TP_STRUCT__entry(
+		__field(	int,			count		)
+		__field(	unsigned long long,	p1		)
+		__field(	unsigned long long,	p2		)
+		__field(	const char *,		type		)
+	),
+
+	TP_fast_assign(
+		__entry->count		= to_book3s(vcpu)->hpte_cache_count;
+		__entry->p1		= p1;
+		__entry->p2		= p2;
+		__entry->type		= type;
+	),
+
+	TP_printk("Flush %d %sPTEs: %llx - %llx",
+		  __entry->count, __entry->type, __entry->p1, __entry->p2)
+);
+
+TRACE_EVENT(kvm_book3s_slb_found,
+	TP_PROTO(unsigned long long gvsid, unsigned long long hvsid),
+	TP_ARGS(gvsid, hvsid),
+
+	TP_STRUCT__entry(
+		__field(	unsigned long long,	gvsid		)
+		__field(	unsigned long long,	hvsid		)
+	),
+
+	TP_fast_assign(
+		__entry->gvsid		= gvsid;
+		__entry->hvsid		= hvsid;
+	),
+
+	TP_printk("%llx -> %llx", __entry->gvsid, __entry->hvsid)
+);
+
+TRACE_EVENT(kvm_book3s_slb_fail,
+	TP_PROTO(u16 sid_map_mask, unsigned long long gvsid),
+	TP_ARGS(sid_map_mask, gvsid),
+
+	TP_STRUCT__entry(
+		__field(	unsigned short,		sid_map_mask	)
+		__field(	unsigned long long,	gvsid		)
+	),
+
+	TP_fast_assign(
+		__entry->sid_map_mask	= sid_map_mask;
+		__entry->gvsid		= gvsid;
+	),
+
+	TP_printk("%x/%x: %llx", __entry->sid_map_mask,
+		  SID_MAP_MASK - __entry->sid_map_mask, __entry->gvsid)
+);
+
+TRACE_EVENT(kvm_book3s_slb_map,
+	TP_PROTO(u16 sid_map_mask, unsigned long long gvsid,
+		 unsigned long long hvsid),
+	TP_ARGS(sid_map_mask, gvsid, hvsid),
+
+	TP_STRUCT__entry(
+		__field(	unsigned short,		sid_map_mask	)
+		__field(	unsigned long long,	guest_vsid	)
+		__field(	unsigned long long,	host_vsid	)
+	),
+
+	TP_fast_assign(
+		__entry->sid_map_mask	= sid_map_mask;
+		__entry->guest_vsid	= gvsid;
+		__entry->host_vsid	= hvsid;
+	),
+
+	TP_printk("%x: %llx -> %llx", __entry->sid_map_mask,
+		  __entry->guest_vsid, __entry->host_vsid)
+);
+
+TRACE_EVENT(kvm_book3s_slbmte,
+	TP_PROTO(u64 slb_vsid, u64 slb_esid),
+	TP_ARGS(slb_vsid, slb_esid),
+
+	TP_STRUCT__entry(
+		__field(	u64,	slb_vsid	)
+		__field(	u64,	slb_esid	)
+	),
+
+	TP_fast_assign(
+		__entry->slb_vsid	= slb_vsid;
+		__entry->slb_esid	= slb_esid;
+	),
+
+	TP_printk("%llx, %llx", __entry->slb_vsid, __entry->slb_esid)
+);
+
+TRACE_EVENT(kvm_exit,
+	TP_PROTO(unsigned int exit_nr, struct kvm_vcpu *vcpu),
+	TP_ARGS(exit_nr, vcpu),
+
+	TP_STRUCT__entry(
+		__field(	unsigned int,	exit_nr		)
+		__field(	unsigned long,	pc		)
+		__field(	unsigned long,	msr		)
+		__field(	unsigned long,	dar		)
+		__field(	unsigned long,	srr1		)
+		__field(	unsigned long,	last_inst	)
+	),
+
+	TP_fast_assign(
+		__entry->exit_nr	= exit_nr;
+		__entry->pc		= kvmppc_get_pc(vcpu);
+		__entry->dar		= kvmppc_get_fault_dar(vcpu);
+		__entry->msr		= vcpu->arch.shared->msr;
+		__entry->srr1		= vcpu->arch.shadow_srr1;
+		__entry->last_inst	= vcpu->arch.last_inst;
+	),
+
+	TP_printk("exit=%s"
+		" | pc=0x%lx"
+		" | msr=0x%lx"
+		" | dar=0x%lx"
+		" | srr1=0x%lx"
+		" | last_inst=0x%lx"
+		,
+		__print_symbolic(__entry->exit_nr, kvm_trace_symbol_exit),
+		__entry->pc,
+		__entry->msr,
+		__entry->dar,
+		__entry->srr1,
+		__entry->last_inst
+		)
+);
+
+TRACE_EVENT(kvm_unmap_hva,
+	TP_PROTO(unsigned long hva),
+	TP_ARGS(hva),
+
+	TP_STRUCT__entry(
+		__field(	unsigned long,	hva		)
+	),
+
+	TP_fast_assign(
+		__entry->hva		= hva;
+	),
+
+	TP_printk("unmap hva 0x%lx\n", __entry->hva)
+);
+
+#endif /* _TRACE_KVM_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
-- 
cgit 


From dba291f2ceacb833063179530eeb83a317a6cc95 Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Date: Mon, 7 Oct 2013 22:17:58 +0530
Subject: kvm: powerpc: booke: Move booke related tracepoints to separate
 header

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/booke.c         |   4 +-
 arch/powerpc/kvm/e500_mmu.c      |   2 +-
 arch/powerpc/kvm/e500_mmu_host.c |   3 +-
 arch/powerpc/kvm/trace.h         | 204 ---------------------------------------
 arch/powerpc/kvm/trace_booke.h   | 177 +++++++++++++++++++++++++++++++++
 5 files changed, 183 insertions(+), 207 deletions(-)
 create mode 100644 arch/powerpc/kvm/trace_booke.h

diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index e5f8ba793c31..1769354d0bf8 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -40,7 +40,9 @@
 
 #include "timing.h"
 #include "booke.h"
-#include "trace.h"
+
+#define CREATE_TRACE_POINTS
+#include "trace_booke.h"
 
 unsigned long kvmppc_booke_handlers;
 
diff --git a/arch/powerpc/kvm/e500_mmu.c b/arch/powerpc/kvm/e500_mmu.c
index d25bb75aec90..ebca6b88ea5e 100644
--- a/arch/powerpc/kvm/e500_mmu.c
+++ b/arch/powerpc/kvm/e500_mmu.c
@@ -32,7 +32,7 @@
 #include <asm/kvm_ppc.h>
 
 #include "e500.h"
-#include "trace.h"
+#include "trace_booke.h"
 #include "timing.h"
 #include "e500_mmu_host.h"
 
diff --git a/arch/powerpc/kvm/e500_mmu_host.c b/arch/powerpc/kvm/e500_mmu_host.c
index 8f0d532522db..e7dde4b88783 100644
--- a/arch/powerpc/kvm/e500_mmu_host.c
+++ b/arch/powerpc/kvm/e500_mmu_host.c
@@ -32,10 +32,11 @@
 #include <asm/kvm_ppc.h>
 
 #include "e500.h"
-#include "trace.h"
 #include "timing.h"
 #include "e500_mmu_host.h"
 
+#include "trace_booke.h"
+
 #define to_htlb1_esel(esel) (host_tlb_params[1].entries - (esel) - 1)
 
 static struct kvmppc_e500_tlb_params host_tlb_params[E500_TLB_NUM];
diff --git a/arch/powerpc/kvm/trace.h b/arch/powerpc/kvm/trace.h
index 80f252af6cb8..2e0e67ef3544 100644
--- a/arch/powerpc/kvm/trace.h
+++ b/arch/powerpc/kvm/trace.h
@@ -31,116 +31,6 @@ TRACE_EVENT(kvm_ppc_instr,
 		  __entry->inst, __entry->pc, __entry->emulate)
 );
 
-#ifdef CONFIG_PPC_BOOK3S
-#define kvm_trace_symbol_exit \
-	{0x100, "SYSTEM_RESET"}, \
-	{0x200, "MACHINE_CHECK"}, \
-	{0x300, "DATA_STORAGE"}, \
-	{0x380, "DATA_SEGMENT"}, \
-	{0x400, "INST_STORAGE"}, \
-	{0x480, "INST_SEGMENT"}, \
-	{0x500, "EXTERNAL"}, \
-	{0x501, "EXTERNAL_LEVEL"}, \
-	{0x502, "EXTERNAL_HV"}, \
-	{0x600, "ALIGNMENT"}, \
-	{0x700, "PROGRAM"}, \
-	{0x800, "FP_UNAVAIL"}, \
-	{0x900, "DECREMENTER"}, \
-	{0x980, "HV_DECREMENTER"}, \
-	{0xc00, "SYSCALL"}, \
-	{0xd00, "TRACE"}, \
-	{0xe00, "H_DATA_STORAGE"}, \
-	{0xe20, "H_INST_STORAGE"}, \
-	{0xe40, "H_EMUL_ASSIST"}, \
-	{0xf00, "PERFMON"}, \
-	{0xf20, "ALTIVEC"}, \
-	{0xf40, "VSX"}
-#else
-#define kvm_trace_symbol_exit \
-	{0, "CRITICAL"}, \
-	{1, "MACHINE_CHECK"}, \
-	{2, "DATA_STORAGE"}, \
-	{3, "INST_STORAGE"}, \
-	{4, "EXTERNAL"}, \
-	{5, "ALIGNMENT"}, \
-	{6, "PROGRAM"}, \
-	{7, "FP_UNAVAIL"}, \
-	{8, "SYSCALL"}, \
-	{9, "AP_UNAVAIL"}, \
-	{10, "DECREMENTER"}, \
-	{11, "FIT"}, \
-	{12, "WATCHDOG"}, \
-	{13, "DTLB_MISS"}, \
-	{14, "ITLB_MISS"}, \
-	{15, "DEBUG"}, \
-	{32, "SPE_UNAVAIL"}, \
-	{33, "SPE_FP_DATA"}, \
-	{34, "SPE_FP_ROUND"}, \
-	{35, "PERFORMANCE_MONITOR"}, \
-	{36, "DOORBELL"}, \
-	{37, "DOORBELL_CRITICAL"}, \
-	{38, "GUEST_DBELL"}, \
-	{39, "GUEST_DBELL_CRIT"}, \
-	{40, "HV_SYSCALL"}, \
-	{41, "HV_PRIV"}
-#endif
-
-#ifndef CONFIG_KVM_BOOK3S_PR_POSSIBLE
-/*
- * For pr we define this in trace_pr.h since it pr can be built as
- * a module
- */
-
-TRACE_EVENT(kvm_exit,
-	TP_PROTO(unsigned int exit_nr, struct kvm_vcpu *vcpu),
-	TP_ARGS(exit_nr, vcpu),
-
-	TP_STRUCT__entry(
-		__field(	unsigned int,	exit_nr		)
-		__field(	unsigned long,	pc		)
-		__field(	unsigned long,	msr		)
-		__field(	unsigned long,	dar		)
-		__field(	unsigned long,	last_inst	)
-	),
-
-	TP_fast_assign(
-		__entry->exit_nr	= exit_nr;
-		__entry->pc		= kvmppc_get_pc(vcpu);
-		__entry->dar		= kvmppc_get_fault_dar(vcpu);
-		__entry->msr		= vcpu->arch.shared->msr;
-		__entry->last_inst	= vcpu->arch.last_inst;
-	),
-
-	TP_printk("exit=%s"
-		" | pc=0x%lx"
-		" | msr=0x%lx"
-		" | dar=0x%lx"
-		" | last_inst=0x%lx"
-		,
-		__print_symbolic(__entry->exit_nr, kvm_trace_symbol_exit),
-		__entry->pc,
-		__entry->msr,
-		__entry->dar,
-		__entry->last_inst
-		)
-);
-
-TRACE_EVENT(kvm_unmap_hva,
-	TP_PROTO(unsigned long hva),
-	TP_ARGS(hva),
-
-	TP_STRUCT__entry(
-		__field(	unsigned long,	hva		)
-	),
-
-	TP_fast_assign(
-		__entry->hva		= hva;
-	),
-
-	TP_printk("unmap hva 0x%lx\n", __entry->hva)
-);
-#endif
-
 TRACE_EVENT(kvm_stlb_inval,
 	TP_PROTO(unsigned int stlb_index),
 	TP_ARGS(stlb_index),
@@ -226,100 +116,6 @@ TRACE_EVENT(kvm_check_requests,
 		__entry->cpu_nr, __entry->requests)
 );
 
-/*************************************************************************
- *                         Book3E trace points                           *
- *************************************************************************/
-
-#ifdef CONFIG_BOOKE
-
-TRACE_EVENT(kvm_booke206_stlb_write,
-	TP_PROTO(__u32 mas0, __u32 mas8, __u32 mas1, __u64 mas2, __u64 mas7_3),
-	TP_ARGS(mas0, mas8, mas1, mas2, mas7_3),
-
-	TP_STRUCT__entry(
-		__field(	__u32,	mas0		)
-		__field(	__u32,	mas8		)
-		__field(	__u32,	mas1		)
-		__field(	__u64,	mas2		)
-		__field(	__u64,	mas7_3		)
-	),
-
-	TP_fast_assign(
-		__entry->mas0		= mas0;
-		__entry->mas8		= mas8;
-		__entry->mas1		= mas1;
-		__entry->mas2		= mas2;
-		__entry->mas7_3		= mas7_3;
-	),
-
-	TP_printk("mas0=%x mas8=%x mas1=%x mas2=%llx mas7_3=%llx",
-		__entry->mas0, __entry->mas8, __entry->mas1,
-		__entry->mas2, __entry->mas7_3)
-);
-
-TRACE_EVENT(kvm_booke206_gtlb_write,
-	TP_PROTO(__u32 mas0, __u32 mas1, __u64 mas2, __u64 mas7_3),
-	TP_ARGS(mas0, mas1, mas2, mas7_3),
-
-	TP_STRUCT__entry(
-		__field(	__u32,	mas0		)
-		__field(	__u32,	mas1		)
-		__field(	__u64,	mas2		)
-		__field(	__u64,	mas7_3		)
-	),
-
-	TP_fast_assign(
-		__entry->mas0		= mas0;
-		__entry->mas1		= mas1;
-		__entry->mas2		= mas2;
-		__entry->mas7_3		= mas7_3;
-	),
-
-	TP_printk("mas0=%x mas1=%x mas2=%llx mas7_3=%llx",
-		__entry->mas0, __entry->mas1,
-		__entry->mas2, __entry->mas7_3)
-);
-
-TRACE_EVENT(kvm_booke206_ref_release,
-	TP_PROTO(__u64 pfn, __u32 flags),
-	TP_ARGS(pfn, flags),
-
-	TP_STRUCT__entry(
-		__field(	__u64,	pfn		)
-		__field(	__u32,	flags		)
-	),
-
-	TP_fast_assign(
-		__entry->pfn		= pfn;
-		__entry->flags		= flags;
-	),
-
-	TP_printk("pfn=%llx flags=%x",
-		__entry->pfn, __entry->flags)
-);
-
-TRACE_EVENT(kvm_booke_queue_irqprio,
-	TP_PROTO(struct kvm_vcpu *vcpu, unsigned int priority),
-	TP_ARGS(vcpu, priority),
-
-	TP_STRUCT__entry(
-		__field(	__u32,	cpu_nr		)
-		__field(	__u32,	priority		)
-		__field(	unsigned long,	pending		)
-	),
-
-	TP_fast_assign(
-		__entry->cpu_nr		= vcpu->vcpu_id;
-		__entry->priority	= priority;
-		__entry->pending	= vcpu->arch.pending_exceptions;
-	),
-
-	TP_printk("vcpu=%x prio=%x pending=%lx",
-		__entry->cpu_nr, __entry->priority, __entry->pending)
-);
-
-#endif
-
 #endif /* _TRACE_KVM_H */
 
 /* This part must be outside protection */
diff --git a/arch/powerpc/kvm/trace_booke.h b/arch/powerpc/kvm/trace_booke.h
new file mode 100644
index 000000000000..f7537cf26ce7
--- /dev/null
+++ b/arch/powerpc/kvm/trace_booke.h
@@ -0,0 +1,177 @@
+#if !defined(_TRACE_KVM_BOOKE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_KVM_BOOKE_H
+
+#include <linux/tracepoint.h>
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM kvm_booke
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE trace_booke
+
+#define kvm_trace_symbol_exit \
+	{0, "CRITICAL"}, \
+	{1, "MACHINE_CHECK"}, \
+	{2, "DATA_STORAGE"}, \
+	{3, "INST_STORAGE"}, \
+	{4, "EXTERNAL"}, \
+	{5, "ALIGNMENT"}, \
+	{6, "PROGRAM"}, \
+	{7, "FP_UNAVAIL"}, \
+	{8, "SYSCALL"}, \
+	{9, "AP_UNAVAIL"}, \
+	{10, "DECREMENTER"}, \
+	{11, "FIT"}, \
+	{12, "WATCHDOG"}, \
+	{13, "DTLB_MISS"}, \
+	{14, "ITLB_MISS"}, \
+	{15, "DEBUG"}, \
+	{32, "SPE_UNAVAIL"}, \
+	{33, "SPE_FP_DATA"}, \
+	{34, "SPE_FP_ROUND"}, \
+	{35, "PERFORMANCE_MONITOR"}, \
+	{36, "DOORBELL"}, \
+	{37, "DOORBELL_CRITICAL"}, \
+	{38, "GUEST_DBELL"}, \
+	{39, "GUEST_DBELL_CRIT"}, \
+	{40, "HV_SYSCALL"}, \
+	{41, "HV_PRIV"}
+
+TRACE_EVENT(kvm_exit,
+	TP_PROTO(unsigned int exit_nr, struct kvm_vcpu *vcpu),
+	TP_ARGS(exit_nr, vcpu),
+
+	TP_STRUCT__entry(
+		__field(	unsigned int,	exit_nr		)
+		__field(	unsigned long,	pc		)
+		__field(	unsigned long,	msr		)
+		__field(	unsigned long,	dar		)
+		__field(	unsigned long,	last_inst	)
+	),
+
+	TP_fast_assign(
+		__entry->exit_nr	= exit_nr;
+		__entry->pc		= kvmppc_get_pc(vcpu);
+		__entry->dar		= kvmppc_get_fault_dar(vcpu);
+		__entry->msr		= vcpu->arch.shared->msr;
+		__entry->last_inst	= vcpu->arch.last_inst;
+	),
+
+	TP_printk("exit=%s"
+		" | pc=0x%lx"
+		" | msr=0x%lx"
+		" | dar=0x%lx"
+		" | last_inst=0x%lx"
+		,
+		__print_symbolic(__entry->exit_nr, kvm_trace_symbol_exit),
+		__entry->pc,
+		__entry->msr,
+		__entry->dar,
+		__entry->last_inst
+		)
+);
+
+TRACE_EVENT(kvm_unmap_hva,
+	TP_PROTO(unsigned long hva),
+	TP_ARGS(hva),
+
+	TP_STRUCT__entry(
+		__field(	unsigned long,	hva		)
+	),
+
+	TP_fast_assign(
+		__entry->hva		= hva;
+	),
+
+	TP_printk("unmap hva 0x%lx\n", __entry->hva)
+);
+
+TRACE_EVENT(kvm_booke206_stlb_write,
+	TP_PROTO(__u32 mas0, __u32 mas8, __u32 mas1, __u64 mas2, __u64 mas7_3),
+	TP_ARGS(mas0, mas8, mas1, mas2, mas7_3),
+
+	TP_STRUCT__entry(
+		__field(	__u32,	mas0		)
+		__field(	__u32,	mas8		)
+		__field(	__u32,	mas1		)
+		__field(	__u64,	mas2		)
+		__field(	__u64,	mas7_3		)
+	),
+
+	TP_fast_assign(
+		__entry->mas0		= mas0;
+		__entry->mas8		= mas8;
+		__entry->mas1		= mas1;
+		__entry->mas2		= mas2;
+		__entry->mas7_3		= mas7_3;
+	),
+
+	TP_printk("mas0=%x mas8=%x mas1=%x mas2=%llx mas7_3=%llx",
+		__entry->mas0, __entry->mas8, __entry->mas1,
+		__entry->mas2, __entry->mas7_3)
+);
+
+TRACE_EVENT(kvm_booke206_gtlb_write,
+	TP_PROTO(__u32 mas0, __u32 mas1, __u64 mas2, __u64 mas7_3),
+	TP_ARGS(mas0, mas1, mas2, mas7_3),
+
+	TP_STRUCT__entry(
+		__field(	__u32,	mas0		)
+		__field(	__u32,	mas1		)
+		__field(	__u64,	mas2		)
+		__field(	__u64,	mas7_3		)
+	),
+
+	TP_fast_assign(
+		__entry->mas0		= mas0;
+		__entry->mas1		= mas1;
+		__entry->mas2		= mas2;
+		__entry->mas7_3		= mas7_3;
+	),
+
+	TP_printk("mas0=%x mas1=%x mas2=%llx mas7_3=%llx",
+		__entry->mas0, __entry->mas1,
+		__entry->mas2, __entry->mas7_3)
+);
+
+TRACE_EVENT(kvm_booke206_ref_release,
+	TP_PROTO(__u64 pfn, __u32 flags),
+	TP_ARGS(pfn, flags),
+
+	TP_STRUCT__entry(
+		__field(	__u64,	pfn		)
+		__field(	__u32,	flags		)
+	),
+
+	TP_fast_assign(
+		__entry->pfn		= pfn;
+		__entry->flags		= flags;
+	),
+
+	TP_printk("pfn=%llx flags=%x",
+		__entry->pfn, __entry->flags)
+);
+
+TRACE_EVENT(kvm_booke_queue_irqprio,
+	TP_PROTO(struct kvm_vcpu *vcpu, unsigned int priority),
+	TP_ARGS(vcpu, priority),
+
+	TP_STRUCT__entry(
+		__field(	__u32,	cpu_nr		)
+		__field(	__u32,	priority		)
+		__field(	unsigned long,	pending		)
+	),
+
+	TP_fast_assign(
+		__entry->cpu_nr		= vcpu->vcpu_id;
+		__entry->priority	= priority;
+		__entry->pending	= vcpu->arch.pending_exceptions;
+	),
+
+	TP_printk("vcpu=%x prio=%x pending=%lx",
+		__entry->cpu_nr, __entry->priority, __entry->pending)
+);
+
+#endif
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
-- 
cgit 


From 095d81cee742fc31e1218077ca6ca8f0df07c613 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 15 Oct 2013 12:25:07 +0200
Subject: mac80211: disable WMM with invalid parameters

Some APs (notably a Sitecom WL-153 v1 with firmware 1.45) are sending
invalid WMM parameters setting AIFSN, ECWmin and ECWmax to zero. The
spec mandates that the value of AIFSN is at least 2, and some cards
(e.g. Intel with the iwldvm driver) can't transmit when the invalid
QoS parameters are actually uploaded to the firmware.

Since there's little chance of being able to guess the values that
the AP actually meant, disable WMM if such an invalid case is found.
Since ECWmin/ECWmax are allowed to be zero, only verify AIFSN >= 2
and ECWmin <= ECWmax.

Reviewed-by: Eliad Peller <eliad@wizery.com>
Reported-by: Antonio Quartulli <antonio@meshcoding.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/ieee80211_i.h |  1 +
 net/mac80211/mlme.c        | 95 +++++++++++++++++++++++++++++++++++++++++-----
 2 files changed, 87 insertions(+), 9 deletions(-)

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 611abfcfb5eb..076409526bcb 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -335,6 +335,7 @@ enum ieee80211_sta_flags {
 	IEEE80211_STA_DISABLE_VHT	= BIT(11),
 	IEEE80211_STA_DISABLE_80P80MHZ	= BIT(12),
 	IEEE80211_STA_DISABLE_160MHZ	= BIT(13),
+	IEEE80211_STA_DISABLE_WMM	= BIT(14),
 };
 
 struct ieee80211_mgd_auth_data {
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 86e4ad56b573..54ebc8155b49 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2717,7 +2717,7 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
 	 */
 	ifmgd->wmm_last_param_set = -1;
 
-	if (elems.wmm_param)
+	if (!(ifmgd->flags & IEEE80211_STA_DISABLE_WMM) && elems.wmm_param)
 		ieee80211_sta_wmm_params(local, sdata, elems.wmm_param,
 					 elems.wmm_param_len);
 	else
@@ -3152,7 +3152,8 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
 	ieee80211_sta_process_chanswitch(sdata, rx_status->mactime,
 					 &elems, true);
 
-	if (ieee80211_sta_wmm_params(local, sdata, elems.wmm_param,
+	if (!(ifmgd->flags & IEEE80211_STA_DISABLE_WMM) &&
+	    ieee80211_sta_wmm_params(local, sdata, elems.wmm_param,
 				     elems.wmm_param_len))
 		changed |= BSS_CHANGED_QOS;
 
@@ -4135,6 +4136,44 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
 	return err;
 }
 
+static bool ieee80211_usable_wmm_params(struct ieee80211_sub_if_data *sdata,
+					const u8 *wmm_param, int len)
+{
+	const u8 *pos;
+	size_t left;
+
+	if (len < 8)
+		return false;
+
+	if (wmm_param[5] != 1 /* version */)
+		return false;
+
+	pos = wmm_param + 8;
+	left = len - 8;
+
+	for (; left >= 4; left -= 4, pos += 4) {
+		u8 aifsn = pos[0] & 0x0f;
+		u8 ecwmin = pos[1] & 0x0f;
+		u8 ecwmax = (pos[1] & 0xf0) >> 4;
+		int aci = (pos[0] >> 5) & 0x03;
+
+		if (aifsn < 2) {
+			sdata_info(sdata,
+				   "AP has invalid WMM params (AIFSN=%d for ACI %d), disabling WMM\n",
+				   aifsn, aci);
+			return false;
+		}
+		if (ecwmin > ecwmax) {
+			sdata_info(sdata,
+				   "AP has invalid WMM params (ECWmin/max=%d/%d for ACI %d), disabling WMM\n",
+				   ecwmin, ecwmax, aci);
+			return false;
+		}
+	}
+
+	return true;
+}
+
 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 			struct cfg80211_assoc_request *req)
 {
@@ -4192,9 +4231,45 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 	}
 
 	/* prepare assoc data */
-	
+
 	ifmgd->beacon_crc_valid = false;
 
+	assoc_data->wmm = bss->wmm_used &&
+			  (local->hw.queues >= IEEE80211_NUM_ACS);
+	if (assoc_data->wmm) {
+		/* try to check validity of WMM params IE */
+		const struct cfg80211_bss_ies *ies;
+		const u8 *wp, *start, *end;
+
+		rcu_read_lock();
+		ies = rcu_dereference(req->bss->ies);
+		start = ies->data;
+		end = start + ies->len;
+
+		while (true) {
+			wp = cfg80211_find_vendor_ie(
+				WLAN_OUI_MICROSOFT,
+				WLAN_OUI_TYPE_MICROSOFT_WMM,
+				start, end - start);
+			if (!wp)
+				break;
+			start = wp + wp[1] + 2;
+			/* if this IE is too short, try the next */
+			if (wp[1] <= 4)
+				continue;
+			/* if this IE is WMM params, we found what we wanted */
+			if (wp[6] == 1)
+				break;
+		}
+
+		if (!wp || !ieee80211_usable_wmm_params(sdata, wp + 2,
+							wp[1] - 2)) {
+			assoc_data->wmm = false;
+			ifmgd->flags |= IEEE80211_STA_DISABLE_WMM;
+		}
+		rcu_read_unlock();
+	}
+
 	/*
 	 * IEEE802.11n does not allow TKIP/WEP as pairwise ciphers in HT mode.
 	 * We still associate in non-HT mode (11a/b/g) if any one of these
@@ -4224,18 +4299,22 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 	/* Also disable HT if we don't support it or the AP doesn't use WMM */
 	sband = local->hw.wiphy->bands[req->bss->channel->band];
 	if (!sband->ht_cap.ht_supported ||
-	    local->hw.queues < IEEE80211_NUM_ACS || !bss->wmm_used) {
+	    local->hw.queues < IEEE80211_NUM_ACS || !bss->wmm_used ||
+	    ifmgd->flags & IEEE80211_STA_DISABLE_WMM) {
 		ifmgd->flags |= IEEE80211_STA_DISABLE_HT;
-		if (!bss->wmm_used)
+		if (!bss->wmm_used &&
+		    !(ifmgd->flags & IEEE80211_STA_DISABLE_WMM))
 			netdev_info(sdata->dev,
 				    "disabling HT as WMM/QoS is not supported by the AP\n");
 	}
 
 	/* disable VHT if we don't support it or the AP doesn't use WMM */
 	if (!sband->vht_cap.vht_supported ||
-	    local->hw.queues < IEEE80211_NUM_ACS || !bss->wmm_used) {
+	    local->hw.queues < IEEE80211_NUM_ACS || !bss->wmm_used ||
+	    ifmgd->flags & IEEE80211_STA_DISABLE_WMM) {
 		ifmgd->flags |= IEEE80211_STA_DISABLE_VHT;
-		if (!bss->wmm_used)
+		if (!bss->wmm_used &&
+		    !(ifmgd->flags & IEEE80211_STA_DISABLE_WMM))
 			netdev_info(sdata->dev,
 				    "disabling VHT as WMM/QoS is not supported by the AP\n");
 	}
@@ -4264,8 +4343,6 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 		sdata->smps_mode = ifmgd->req_smps;
 
 	assoc_data->capability = req->bss->capability;
-	assoc_data->wmm = bss->wmm_used &&
-			  (local->hw.queues >= IEEE80211_NUM_ACS);
 	assoc_data->supp_rates = bss->supp_rates;
 	assoc_data->supp_rates_len = bss->supp_rates_len;
 
-- 
cgit 


From 2ba9f0d8875073a2ed802fca0c25c9bfc4338439 Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Date: Mon, 7 Oct 2013 22:17:59 +0530
Subject: kvm: powerpc: book3s: Support building HV and PR KVM as module

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
[agraf: squash in compile fix]
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/kvm/Kconfig          |  6 +++---
 arch/powerpc/kvm/Makefile         | 11 ++++++++---
 arch/powerpc/kvm/book3s.c         | 12 +++++++++++-
 arch/powerpc/kvm/book3s_emulate.c |  2 +-
 arch/powerpc/kvm/book3s_hv.c      |  2 ++
 arch/powerpc/kvm/book3s_pr.c      |  5 ++++-
 arch/powerpc/kvm/book3s_rtas.c    |  1 +
 arch/powerpc/kvm/book3s_xics.c    |  1 +
 arch/powerpc/kvm/emulate.c        |  1 +
 arch/powerpc/kvm/powerpc.c        | 10 ++++++++++
 virt/kvm/kvm_main.c               |  4 ++++
 11 files changed, 46 insertions(+), 9 deletions(-)

diff --git a/arch/powerpc/kvm/Kconfig b/arch/powerpc/kvm/Kconfig
index a96d7c32f785..8aeeda1ff42a 100644
--- a/arch/powerpc/kvm/Kconfig
+++ b/arch/powerpc/kvm/Kconfig
@@ -73,7 +73,7 @@ config KVM_BOOK3S_64
 	  If unsure, say N.
 
 config KVM_BOOK3S_64_HV
-	bool "KVM support for POWER7 and PPC970 using hypervisor mode in host"
+	tristate "KVM support for POWER7 and PPC970 using hypervisor mode in host"
 	depends on KVM_BOOK3S_64
 	select KVM_BOOK3S_HV_POSSIBLE
 	select MMU_NOTIFIER
@@ -94,8 +94,8 @@ config KVM_BOOK3S_64_HV
 	  If unsure, say N.
 
 config KVM_BOOK3S_64_PR
-	bool "KVM support without using hypervisor mode in host"
-	depends on KVM_BOOK3S_64 && !KVM_BOOK3S_64_HV
+	tristate "KVM support without using hypervisor mode in host"
+	depends on KVM_BOOK3S_64
 	select KVM_BOOK3S_PR_POSSIBLE
 	---help---
 	  Support running guest kernels in virtual machines on processors
diff --git a/arch/powerpc/kvm/Makefile b/arch/powerpc/kvm/Makefile
index fa17b337bb96..ce569b6bf4d8 100644
--- a/arch/powerpc/kvm/Makefile
+++ b/arch/powerpc/kvm/Makefile
@@ -56,7 +56,7 @@ kvm-objs-$(CONFIG_KVM_E500MC) := $(kvm-e500mc-objs)
 kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_HANDLER) := \
 	book3s_64_vio_hv.o
 
-kvm-book3s_64-objs-$(CONFIG_KVM_BOOK3S_64_PR) := \
+kvm-pr-y := \
 	fpu.o \
 	book3s_paired_singles.o \
 	book3s_pr.o \
@@ -76,7 +76,7 @@ kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_HANDLER) += \
 	book3s_rmhandlers.o
 endif
 
-kvm-book3s_64-objs-$(CONFIG_KVM_BOOK3S_64_HV)  += \
+kvm-hv-y += \
 	book3s_hv.o \
 	book3s_hv_interrupts.o \
 	book3s_64_mmu_hv.o
@@ -84,13 +84,15 @@ kvm-book3s_64-objs-$(CONFIG_KVM_BOOK3S_64_HV)  += \
 kvm-book3s_64-builtin-xics-objs-$(CONFIG_KVM_XICS) := \
 	book3s_hv_rm_xics.o
 
-kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_HV) += \
+ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+kvm-book3s_64-builtin-objs-$(CONFIG_KVM_BOOK3S_64_HANDLER) += \
 	book3s_hv_rmhandlers.o \
 	book3s_hv_rm_mmu.o \
 	book3s_hv_ras.o \
 	book3s_hv_builtin.o \
 	book3s_hv_cma.o \
 	$(kvm-book3s_64-builtin-xics-objs-y)
+endif
 
 kvm-book3s_64-objs-$(CONFIG_KVM_XICS) += \
 	book3s_xics.o
@@ -131,4 +133,7 @@ obj-$(CONFIG_KVM_E500MC) += kvm.o
 obj-$(CONFIG_KVM_BOOK3S_64) += kvm.o
 obj-$(CONFIG_KVM_BOOK3S_32) += kvm.o
 
+obj-$(CONFIG_KVM_BOOK3S_64_PR) += kvm-pr.o
+obj-$(CONFIG_KVM_BOOK3S_64_HV) += kvm-hv.o
+
 obj-y += $(kvm-book3s_64-builtin-objs-y)
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index 493aff77f84e..39d2994f9d27 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -170,28 +170,32 @@ void kvmppc_book3s_queue_irqprio(struct kvm_vcpu *vcpu, unsigned int vec)
 	printk(KERN_INFO "Queueing interrupt %x\n", vec);
 #endif
 }
-
+EXPORT_SYMBOL_GPL(kvmppc_book3s_queue_irqprio);
 
 void kvmppc_core_queue_program(struct kvm_vcpu *vcpu, ulong flags)
 {
 	/* might as well deliver this straight away */
 	kvmppc_inject_interrupt(vcpu, BOOK3S_INTERRUPT_PROGRAM, flags);
 }
+EXPORT_SYMBOL_GPL(kvmppc_core_queue_program);
 
 void kvmppc_core_queue_dec(struct kvm_vcpu *vcpu)
 {
 	kvmppc_book3s_queue_irqprio(vcpu, BOOK3S_INTERRUPT_DECREMENTER);
 }
+EXPORT_SYMBOL_GPL(kvmppc_core_queue_dec);
 
 int kvmppc_core_pending_dec(struct kvm_vcpu *vcpu)
 {
 	return test_bit(BOOK3S_IRQPRIO_DECREMENTER, &vcpu->arch.pending_exceptions);
 }
+EXPORT_SYMBOL_GPL(kvmppc_core_pending_dec);
 
 void kvmppc_core_dequeue_dec(struct kvm_vcpu *vcpu)
 {
 	kvmppc_book3s_dequeue_irqprio(vcpu, BOOK3S_INTERRUPT_DECREMENTER);
 }
+EXPORT_SYMBOL_GPL(kvmppc_core_dequeue_dec);
 
 void kvmppc_core_queue_external(struct kvm_vcpu *vcpu,
                                 struct kvm_interrupt *irq)
@@ -329,6 +333,7 @@ int kvmppc_core_prepare_to_enter(struct kvm_vcpu *vcpu)
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(kvmppc_core_prepare_to_enter);
 
 pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn, bool writing,
 			bool *writable)
@@ -354,6 +359,7 @@ pfn_t kvmppc_gfn_to_pfn(struct kvm_vcpu *vcpu, gfn_t gfn, bool writing,
 
 	return gfn_to_pfn_prot(vcpu->kvm, gfn, writing, writable);
 }
+EXPORT_SYMBOL_GPL(kvmppc_gfn_to_pfn);
 
 static int kvmppc_xlate(struct kvm_vcpu *vcpu, ulong eaddr, bool data,
 			bool iswrite, struct kvmppc_pte *pte)
@@ -421,6 +427,7 @@ int kvmppc_st(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
 
 	return EMULATE_DONE;
 }
+EXPORT_SYMBOL_GPL(kvmppc_st);
 
 int kvmppc_ld(struct kvm_vcpu *vcpu, ulong *eaddr, int size, void *ptr,
 		      bool data)
@@ -451,6 +458,7 @@ nopte:
 mmio:
 	return EMULATE_DO_MMIO;
 }
+EXPORT_SYMBOL_GPL(kvmppc_ld);
 
 int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
 {
@@ -706,6 +714,7 @@ void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 msr)
 {
 	kvmppc_ops->set_msr(vcpu, msr);
 }
+EXPORT_SYMBOL_GPL(kvmppc_set_msr);
 
 int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 {
@@ -787,6 +796,7 @@ int kvm_unmap_hva(struct kvm *kvm, unsigned long hva)
 {
 	return kvmppc_ops->unmap_hva(kvm, hva);
 }
+EXPORT_SYMBOL_GPL(kvm_unmap_hva);
 
 int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
 {
diff --git a/arch/powerpc/kvm/book3s_emulate.c b/arch/powerpc/kvm/book3s_emulate.c
index b9841ad844fb..99d40f8977e8 100644
--- a/arch/powerpc/kvm/book3s_emulate.c
+++ b/arch/powerpc/kvm/book3s_emulate.c
@@ -172,7 +172,7 @@ int kvmppc_core_emulate_op_pr(struct kvm_run *run, struct kvm_vcpu *vcpu,
 			vcpu->arch.mmu.tlbie(vcpu, addr, large);
 			break;
 		}
-#ifdef CONFIG_KVM_BOOK3S_64_PR
+#ifdef CONFIG_PPC_BOOK3S_64
 		case OP_31_XOP_FAKE_SC1:
 		{
 			/* SC 1 papr hypercalls */
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 0782c8688c8b..9e954a81c078 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -52,6 +52,7 @@
 #include <linux/vmalloc.h>
 #include <linux/highmem.h>
 #include <linux/hugetlb.h>
+#include <linux/module.h>
 
 #include "book3s.h"
 
@@ -2215,3 +2216,4 @@ static void kvmppc_book3s_exit_hv(void)
 
 module_init(kvmppc_book3s_init_hv);
 module_exit(kvmppc_book3s_exit_hv);
+MODULE_LICENSE("GPL");
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index ca6c73d2ee77..7f583a482161 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -40,6 +40,7 @@
 #include <linux/sched.h>
 #include <linux/vmalloc.h>
 #include <linux/highmem.h>
+#include <linux/module.h>
 
 #include "book3s.h"
 
@@ -918,7 +919,7 @@ program_interrupt:
 			ulong cmd = kvmppc_get_gpr(vcpu, 3);
 			int i;
 
-#ifdef CONFIG_KVM_BOOK3S_64_PR
+#ifdef CONFIG_PPC_BOOK3S_64
 			if (kvmppc_h_pr(vcpu, cmd) == EMULATE_DONE) {
 				r = RESUME_GUEST;
 				break;
@@ -1582,3 +1583,5 @@ static void kvmppc_book3s_exit_pr(void)
 
 module_init(kvmppc_book3s_init_pr);
 module_exit(kvmppc_book3s_exit_pr);
+
+MODULE_LICENSE("GPL");
diff --git a/arch/powerpc/kvm/book3s_rtas.c b/arch/powerpc/kvm/book3s_rtas.c
index 3219ba895246..cf95cdef73c9 100644
--- a/arch/powerpc/kvm/book3s_rtas.c
+++ b/arch/powerpc/kvm/book3s_rtas.c
@@ -260,6 +260,7 @@ fail:
 	 */
 	return rc;
 }
+EXPORT_SYMBOL_GPL(kvmppc_rtas_hcall);
 
 void kvmppc_rtas_tokens_free(struct kvm *kvm)
 {
diff --git a/arch/powerpc/kvm/book3s_xics.c b/arch/powerpc/kvm/book3s_xics.c
index cef3de96ff6c..c3c832b27ee5 100644
--- a/arch/powerpc/kvm/book3s_xics.c
+++ b/arch/powerpc/kvm/book3s_xics.c
@@ -840,6 +840,7 @@ int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 req)
 
 	return rc;
 }
+EXPORT_SYMBOL_GPL(kvmppc_xics_hcall);
 
 
 /* -- Initialisation code etc. -- */
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index 81762eb7957e..de9a340d22ed 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -483,3 +483,4 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
 
 	return emulated;
 }
+EXPORT_SYMBOL_GPL(kvmppc_emulate_instruction);
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 874a2a5e6cec..9aaa07efa4b6 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -126,6 +126,7 @@ int kvmppc_prepare_to_enter(struct kvm_vcpu *vcpu)
 
 	return r;
 }
+EXPORT_SYMBOL_GPL(kvmppc_prepare_to_enter);
 
 int kvmppc_kvm_pv(struct kvm_vcpu *vcpu)
 {
@@ -179,6 +180,7 @@ int kvmppc_kvm_pv(struct kvm_vcpu *vcpu)
 
 	return r;
 }
+EXPORT_SYMBOL_GPL(kvmppc_kvm_pv);
 
 int kvmppc_sanity_check(struct kvm_vcpu *vcpu)
 {
@@ -207,6 +209,7 @@ out:
 	vcpu->arch.sane = r;
 	return r ? 0 : -EINVAL;
 }
+EXPORT_SYMBOL_GPL(kvmppc_sanity_check);
 
 int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu)
 {
@@ -241,6 +244,7 @@ int kvmppc_emulate_mmio(struct kvm_run *run, struct kvm_vcpu *vcpu)
 
 	return r;
 }
+EXPORT_SYMBOL_GPL(kvmppc_emulate_mmio);
 
 int kvm_arch_hardware_enable(void *garbage)
 {
@@ -665,6 +669,7 @@ int kvmppc_handle_load(struct kvm_run *run, struct kvm_vcpu *vcpu,
 
 	return EMULATE_DO_MMIO;
 }
+EXPORT_SYMBOL_GPL(kvmppc_handle_load);
 
 /* Same as above, but sign extends */
 int kvmppc_handle_loads(struct kvm_run *run, struct kvm_vcpu *vcpu,
@@ -726,6 +731,7 @@ int kvmppc_handle_store(struct kvm_run *run, struct kvm_vcpu *vcpu,
 
 	return EMULATE_DO_MMIO;
 }
+EXPORT_SYMBOL_GPL(kvmppc_handle_store);
 
 int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *run)
 {
@@ -1074,22 +1080,26 @@ long kvmppc_alloc_lpid(void)
 
 	return lpid;
 }
+EXPORT_SYMBOL_GPL(kvmppc_alloc_lpid);
 
 void kvmppc_claim_lpid(long lpid)
 {
 	set_bit(lpid, lpid_inuse);
 }
+EXPORT_SYMBOL_GPL(kvmppc_claim_lpid);
 
 void kvmppc_free_lpid(long lpid)
 {
 	clear_bit(lpid, lpid_inuse);
 }
+EXPORT_SYMBOL_GPL(kvmppc_free_lpid);
 
 void kvmppc_init_lpid(unsigned long nr_lpids_param)
 {
 	nr_lpids = min_t(unsigned long, KVMPPC_NR_LPIDS, nr_lpids_param);
 	memset(lpid_inuse, 0, sizeof(lpid_inuse));
 }
+EXPORT_SYMBOL_GPL(kvmppc_init_lpid);
 
 int kvm_arch_init(void *opaque)
 {
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index d469114aff09..94c6e3f6f244 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -187,6 +187,7 @@ void kvm_flush_remote_tlbs(struct kvm *kvm)
 		++kvm->stat.remote_tlb_flush;
 	cmpxchg(&kvm->tlbs_dirty, dirty_count, 0);
 }
+EXPORT_SYMBOL_GPL(kvm_flush_remote_tlbs);
 
 void kvm_reload_remote_mmus(struct kvm *kvm)
 {
@@ -965,6 +966,7 @@ int kvm_get_dirty_log(struct kvm *kvm,
 out:
 	return r;
 }
+EXPORT_SYMBOL_GPL(kvm_get_dirty_log);
 
 bool kvm_largepages_enabled(void)
 {
@@ -1653,6 +1655,7 @@ void mark_page_dirty(struct kvm *kvm, gfn_t gfn)
 	memslot = gfn_to_memslot(kvm, gfn);
 	mark_page_dirty_in_slot(kvm, memslot, gfn);
 }
+EXPORT_SYMBOL_GPL(mark_page_dirty);
 
 /*
  * The vCPU has executed a HLT instruction with in-kernel mode enabled.
@@ -1678,6 +1681,7 @@ void kvm_vcpu_block(struct kvm_vcpu *vcpu)
 
 	finish_wait(&vcpu->wq, &wait);
 }
+EXPORT_SYMBOL_GPL(kvm_vcpu_block);
 
 #ifndef CONFIG_S390
 /*
-- 
cgit 


From 5587027ce9d59a57aecaa190be1c8e560aaff45d Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Date: Mon, 7 Oct 2013 22:18:00 +0530
Subject: kvm: Add struct kvm arg to memslot APIs

We will use that in the later patch to find the kvm ops handler

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/arm/kvm/arm.c                 |  5 +++--
 arch/ia64/kvm/kvm-ia64.c           |  5 +++--
 arch/mips/kvm/kvm_mips.c           |  5 +++--
 arch/powerpc/include/asm/kvm_ppc.h |  6 ++++--
 arch/powerpc/kvm/book3s.c          |  4 ++--
 arch/powerpc/kvm/booke.c           |  4 ++--
 arch/powerpc/kvm/powerpc.c         |  9 +++++----
 arch/s390/kvm/kvm-s390.c           |  5 +++--
 arch/x86/kvm/x86.c                 |  5 +++--
 include/linux/kvm_host.h           |  5 +++--
 virt/kvm/kvm_main.c                | 12 ++++++------
 11 files changed, 37 insertions(+), 28 deletions(-)

diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index cc5adb9349ef..e312e4a53f8d 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -152,12 +152,13 @@ int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf)
 	return VM_FAULT_SIGBUS;
 }
 
-void kvm_arch_free_memslot(struct kvm_memory_slot *free,
+void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,
 			   struct kvm_memory_slot *dont)
 {
 }
 
-int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages)
+int kvm_arch_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot,
+			    unsigned long npages)
 {
 	return 0;
 }
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index bdfd8789b376..985bf80c622e 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -1550,12 +1550,13 @@ int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf)
 	return VM_FAULT_SIGBUS;
 }
 
-void kvm_arch_free_memslot(struct kvm_memory_slot *free,
+void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,
 			   struct kvm_memory_slot *dont)
 {
 }
 
-int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages)
+int kvm_arch_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot,
+			    unsigned long npages)
 {
 	return 0;
 }
diff --git a/arch/mips/kvm/kvm_mips.c b/arch/mips/kvm/kvm_mips.c
index a7b044536de4..73b34827826c 100644
--- a/arch/mips/kvm/kvm_mips.c
+++ b/arch/mips/kvm/kvm_mips.c
@@ -198,12 +198,13 @@ kvm_arch_dev_ioctl(struct file *filp, unsigned int ioctl, unsigned long arg)
 	return -ENOIOCTLCMD;
 }
 
-void kvm_arch_free_memslot(struct kvm_memory_slot *free,
+void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,
 			   struct kvm_memory_slot *dont)
 {
 }
 
-int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages)
+int kvm_arch_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot,
+			    unsigned long npages)
 {
 	return 0;
 }
diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h
index c13f15db476c..20f461637090 100644
--- a/arch/powerpc/include/asm/kvm_ppc.h
+++ b/arch/powerpc/include/asm/kvm_ppc.h
@@ -134,9 +134,11 @@ extern struct page *kvm_alloc_hpt(unsigned long nr_pages);
 extern void kvm_release_hpt(struct page *page, unsigned long nr_pages);
 extern int kvmppc_core_init_vm(struct kvm *kvm);
 extern void kvmppc_core_destroy_vm(struct kvm *kvm);
-extern void kvmppc_core_free_memslot(struct kvm_memory_slot *free,
+extern void kvmppc_core_free_memslot(struct kvm *kvm,
+				     struct kvm_memory_slot *free,
 				     struct kvm_memory_slot *dont);
-extern int kvmppc_core_create_memslot(struct kvm_memory_slot *slot,
+extern int kvmppc_core_create_memslot(struct kvm *kvm,
+				      struct kvm_memory_slot *slot,
 				      unsigned long npages);
 extern int kvmppc_core_prepare_memory_region(struct kvm *kvm,
 				struct kvm_memory_slot *memslot,
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index 39d2994f9d27..130fe1d75bac 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -761,13 +761,13 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log)
 	return kvmppc_ops->get_dirty_log(kvm, log);
 }
 
-void kvmppc_core_free_memslot(struct kvm_memory_slot *free,
+void kvmppc_core_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,
 			      struct kvm_memory_slot *dont)
 {
 	kvmppc_ops->free_memslot(free, dont);
 }
 
-int kvmppc_core_create_memslot(struct kvm_memory_slot *slot,
+int kvmppc_core_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot,
 			       unsigned long npages)
 {
 	return kvmppc_ops->create_memslot(slot, npages);
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 1769354d0bf8..cb2d986a3382 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -1662,12 +1662,12 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log)
 	return -ENOTSUPP;
 }
 
-void kvmppc_core_free_memslot(struct kvm_memory_slot *free,
+void kvmppc_core_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,
 			      struct kvm_memory_slot *dont)
 {
 }
 
-int kvmppc_core_create_memslot(struct kvm_memory_slot *slot,
+int kvmppc_core_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot,
 			       unsigned long npages)
 {
 	return 0;
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 9aaa07efa4b6..b103d747934a 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -417,15 +417,16 @@ long kvm_arch_dev_ioctl(struct file *filp,
 	return -EINVAL;
 }
 
-void kvm_arch_free_memslot(struct kvm_memory_slot *free,
+void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,
 			   struct kvm_memory_slot *dont)
 {
-	kvmppc_core_free_memslot(free, dont);
+	kvmppc_core_free_memslot(kvm, free, dont);
 }
 
-int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages)
+int kvm_arch_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot,
+			    unsigned long npages)
 {
-	return kvmppc_core_create_memslot(slot, npages);
+	return kvmppc_core_create_memslot(kvm, slot, npages);
 }
 
 void kvm_arch_memslots_updated(struct kvm *kvm)
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 1e4e7b97337a..bedda67cc222 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -1089,12 +1089,13 @@ int kvm_arch_vcpu_fault(struct kvm_vcpu *vcpu, struct vm_fault *vmf)
 	return VM_FAULT_SIGBUS;
 }
 
-void kvm_arch_free_memslot(struct kvm_memory_slot *free,
+void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,
 			   struct kvm_memory_slot *dont)
 {
 }
 
-int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages)
+int kvm_arch_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot,
+			    unsigned long npages)
 {
 	return 0;
 }
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index edf2a07df3a3..666526a55c46 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -7080,7 +7080,7 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
 	kfree(rcu_dereference_check(kvm->arch.apic_map, 1));
 }
 
-void kvm_arch_free_memslot(struct kvm_memory_slot *free,
+void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,
 			   struct kvm_memory_slot *dont)
 {
 	int i;
@@ -7101,7 +7101,8 @@ void kvm_arch_free_memslot(struct kvm_memory_slot *free,
 	}
 }
 
-int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages)
+int kvm_arch_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot,
+			    unsigned long npages)
 {
 	int i;
 
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index c9d4236ab442..8b0107dc2067 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -507,9 +507,10 @@ int kvm_set_memory_region(struct kvm *kvm,
 			  struct kvm_userspace_memory_region *mem);
 int __kvm_set_memory_region(struct kvm *kvm,
 			    struct kvm_userspace_memory_region *mem);
-void kvm_arch_free_memslot(struct kvm_memory_slot *free,
+void kvm_arch_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,
 			   struct kvm_memory_slot *dont);
-int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages);
+int kvm_arch_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot,
+			    unsigned long npages);
 void kvm_arch_memslots_updated(struct kvm *kvm);
 int kvm_arch_prepare_memory_region(struct kvm *kvm,
 				struct kvm_memory_slot *memslot,
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 94c6e3f6f244..0932c3b64155 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -542,13 +542,13 @@ static void kvm_destroy_dirty_bitmap(struct kvm_memory_slot *memslot)
 /*
  * Free any memory in @free but not in @dont.
  */
-static void kvm_free_physmem_slot(struct kvm_memory_slot *free,
+static void kvm_free_physmem_slot(struct kvm *kvm, struct kvm_memory_slot *free,
 				  struct kvm_memory_slot *dont)
 {
 	if (!dont || free->dirty_bitmap != dont->dirty_bitmap)
 		kvm_destroy_dirty_bitmap(free);
 
-	kvm_arch_free_memslot(free, dont);
+	kvm_arch_free_memslot(kvm, free, dont);
 
 	free->npages = 0;
 }
@@ -559,7 +559,7 @@ void kvm_free_physmem(struct kvm *kvm)
 	struct kvm_memory_slot *memslot;
 
 	kvm_for_each_memslot(memslot, slots)
-		kvm_free_physmem_slot(memslot, NULL);
+		kvm_free_physmem_slot(kvm, memslot, NULL);
 
 	kfree(kvm->memslots);
 }
@@ -823,7 +823,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
 	if (change == KVM_MR_CREATE) {
 		new.userspace_addr = mem->userspace_addr;
 
-		if (kvm_arch_create_memslot(&new, npages))
+		if (kvm_arch_create_memslot(kvm, &new, npages))
 			goto out_free;
 	}
 
@@ -899,7 +899,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
 
 	kvm_arch_commit_memory_region(kvm, mem, &old, change);
 
-	kvm_free_physmem_slot(&old, &new);
+	kvm_free_physmem_slot(kvm, &old, &new);
 	kfree(old_memslots);
 
 	return 0;
@@ -907,7 +907,7 @@ int __kvm_set_memory_region(struct kvm *kvm,
 out_slots:
 	kfree(slots);
 out_free:
-	kvm_free_physmem_slot(&new, &old);
+	kvm_free_physmem_slot(kvm, &new, &old);
 out:
 	return r;
 }
-- 
cgit 


From dc77523c5da5513df1bbc74db2a522a94f4cec0e Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Thu, 19 Sep 2013 04:37:29 -0300
Subject: [media] videobuf2-core: call __setup_offsets only for mmap memory
 type

__setup_offsets fills the v4l2_planes' mem_offset fields, which is only valid
for V4L2_MEMORY_MMAP type buffers. For V4L2_MEMORY_DMABUF and _USERPTR buffers,
this incorrectly overwrites the fd and userptr fields.

Reported-by: Michael Olbrich <m.olbrich@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/v4l2-core/videobuf2-core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/v4l2-core/videobuf2-core.c b/drivers/media/v4l2-core/videobuf2-core.c
index fc8af507beac..91412d463ba0 100644
--- a/drivers/media/v4l2-core/videobuf2-core.c
+++ b/drivers/media/v4l2-core/videobuf2-core.c
@@ -241,7 +241,8 @@ static int __vb2_queue_alloc(struct vb2_queue *q, enum v4l2_memory memory,
 		q->bufs[q->num_buffers + buffer] = vb;
 	}
 
-	__setup_offsets(q, buffer);
+	if (memory == V4L2_MEMORY_MMAP)
+		__setup_offsets(q, buffer);
 
 	dprintk(1, "Allocated %d buffers, %d plane(s) each\n",
 			buffer, num_planes);
-- 
cgit 


From a23086981723570c8952520d9ffaf6995d45f63e Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hartleys@visionengravers.com>
Date: Tue, 15 Oct 2013 18:40:03 -0700
Subject: pwm: add ep93xx PWM support

Remove the non-standard EP93xx PWM driver in drivers/misc and add
a new driver for the PWM controllers on the EP93xx platform based
on the PWM framework.

These PWM controllers each support 1 PWM channel with programmable
duty cycle, frequency, and polarity inversion.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ryan Mallon <rmallon@gmail.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---
 drivers/misc/Kconfig      |  13 ---
 drivers/misc/Makefile     |   1 -
 drivers/misc/ep93xx_pwm.c | 286 ----------------------------------------------
 drivers/pwm/Kconfig       |   9 ++
 drivers/pwm/Makefile      |   1 +
 drivers/pwm/pwm-ep93xx.c  | 230 +++++++++++++++++++++++++++++++++++++
 6 files changed, 240 insertions(+), 300 deletions(-)
 delete mode 100644 drivers/misc/ep93xx_pwm.c
 create mode 100644 drivers/pwm/pwm-ep93xx.c

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 8dacd4c9ee87..c43c66ad5721 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -381,19 +381,6 @@ config HMC6352
 	  This driver provides support for the Honeywell HMC6352 compass,
 	  providing configuration and heading data via sysfs.
 
-config EP93XX_PWM
-	tristate "EP93xx PWM support"
-	depends on ARCH_EP93XX
-	help
-	  This option enables device driver support for the PWM channels
-	  on the Cirrus EP93xx processors.  The EP9307 chip only has one
-	  PWM channel all the others have two, the second channel is an
-	  alternate function of the EGPIO14 pin.  A sysfs interface is
-	  provided to control the PWM channels.
-
-	  To compile this driver as a module, choose M here: the module will
-	  be called ep93xx_pwm.
-
 config DS1682
 	tristate "Dallas DS1682 Total Elapsed Time Recorder with Alarm"
 	depends on I2C
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index c235d5b68311..ecccd0039353 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -33,7 +33,6 @@ obj-$(CONFIG_APDS9802ALS)	+= apds9802als.o
 obj-$(CONFIG_ISL29003)		+= isl29003.o
 obj-$(CONFIG_ISL29020)		+= isl29020.o
 obj-$(CONFIG_SENSORS_TSL2550)	+= tsl2550.o
-obj-$(CONFIG_EP93XX_PWM)	+= ep93xx_pwm.o
 obj-$(CONFIG_DS1682)		+= ds1682.o
 obj-$(CONFIG_TI_DAC7512)	+= ti_dac7512.o
 obj-$(CONFIG_C2PORT)		+= c2port/
diff --git a/drivers/misc/ep93xx_pwm.c b/drivers/misc/ep93xx_pwm.c
deleted file mode 100644
index cdb67a9c1959..000000000000
--- a/drivers/misc/ep93xx_pwm.c
+++ /dev/null
@@ -1,286 +0,0 @@
-/*
- *  Simple PWM driver for EP93XX
- *
- *	(c) Copyright 2009  Matthieu Crapet <mcrapet@gmail.com>
- *	(c) Copyright 2009  H Hartley Sweeten <hsweeten@visionengravers.com>
- *
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
- *
- *  EP9307 has only one channel:
- *    - PWMOUT
- *
- *  EP9301/02/12/15 have two channels:
- *    - PWMOUT
- *    - PWMOUT1 (alternate function for EGPIO14)
- */
-
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/slab.h>
-#include <linux/clk.h>
-#include <linux/err.h>
-#include <linux/io.h>
-
-#include <mach/platform.h>
-
-#define EP93XX_PWMx_TERM_COUNT	0x00
-#define EP93XX_PWMx_DUTY_CYCLE	0x04
-#define EP93XX_PWMx_ENABLE	0x08
-#define EP93XX_PWMx_INVERT	0x0C
-
-#define EP93XX_PWM_MAX_COUNT	0xFFFF
-
-struct ep93xx_pwm {
-	void __iomem	*mmio_base;
-	struct clk	*clk;
-	u32		duty_percent;
-};
-
-/*
- * /sys/devices/platform/ep93xx-pwm.N
- *   /min_freq      read-only   minimum pwm output frequency
- *   /max_req       read-only   maximum pwm output frequency
- *   /freq          read-write  pwm output frequency (0 = disable output)
- *   /duty_percent  read-write  pwm duty cycle percent (1..99)
- *   /invert        read-write  invert pwm output
- */
-
-static ssize_t ep93xx_pwm_get_min_freq(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
-	unsigned long rate = clk_get_rate(pwm->clk);
-
-	return sprintf(buf, "%ld\n", rate / (EP93XX_PWM_MAX_COUNT + 1));
-}
-
-static ssize_t ep93xx_pwm_get_max_freq(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
-	unsigned long rate = clk_get_rate(pwm->clk);
-
-	return sprintf(buf, "%ld\n", rate / 2);
-}
-
-static ssize_t ep93xx_pwm_get_freq(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
-
-	if (readl(pwm->mmio_base + EP93XX_PWMx_ENABLE) & 0x1) {
-		unsigned long rate = clk_get_rate(pwm->clk);
-		u16 term = readl(pwm->mmio_base + EP93XX_PWMx_TERM_COUNT);
-
-		return sprintf(buf, "%ld\n", rate / (term + 1));
-	} else {
-		return sprintf(buf, "disabled\n");
-	}
-}
-
-static ssize_t ep93xx_pwm_set_freq(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t count)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
-	long val;
-	int err;
-
-	err = kstrtol(buf, 10, &val);
-	if (err)
-		return -EINVAL;
-
-	if (val == 0) {
-		writel(0x0, pwm->mmio_base + EP93XX_PWMx_ENABLE);
-	} else if (val <= (clk_get_rate(pwm->clk) / 2)) {
-		u32 term, duty;
-
-		val = (clk_get_rate(pwm->clk) / val) - 1;
-		if (val > EP93XX_PWM_MAX_COUNT)
-			val = EP93XX_PWM_MAX_COUNT;
-		if (val < 1)
-			val = 1;
-
-		term = readl(pwm->mmio_base + EP93XX_PWMx_TERM_COUNT);
-		duty = ((val + 1) * pwm->duty_percent / 100) - 1;
-
-		/* If pwm is running, order is important */
-		if (val > term) {
-			writel(val, pwm->mmio_base + EP93XX_PWMx_TERM_COUNT);
-			writel(duty, pwm->mmio_base + EP93XX_PWMx_DUTY_CYCLE);
-		} else {
-			writel(duty, pwm->mmio_base + EP93XX_PWMx_DUTY_CYCLE);
-			writel(val, pwm->mmio_base + EP93XX_PWMx_TERM_COUNT);
-		}
-
-		if (!readl(pwm->mmio_base + EP93XX_PWMx_ENABLE) & 0x1)
-			writel(0x1, pwm->mmio_base + EP93XX_PWMx_ENABLE);
-	} else {
-		return -EINVAL;
-	}
-
-	return count;
-}
-
-static ssize_t ep93xx_pwm_get_duty_percent(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
-
-	return sprintf(buf, "%d\n", pwm->duty_percent);
-}
-
-static ssize_t ep93xx_pwm_set_duty_percent(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t count)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
-	long val;
-	int err;
-
-	err = kstrtol(buf, 10, &val);
-	if (err)
-		return -EINVAL;
-
-	if (val > 0 && val < 100) {
-		u32 term = readl(pwm->mmio_base + EP93XX_PWMx_TERM_COUNT);
-		u32 duty = ((term + 1) * val / 100) - 1;
-
-		writel(duty, pwm->mmio_base + EP93XX_PWMx_DUTY_CYCLE);
-		pwm->duty_percent = val;
-		return count;
-	}
-
-	return -EINVAL;
-}
-
-static ssize_t ep93xx_pwm_get_invert(struct device *dev,
-		struct device_attribute *attr, char *buf)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
-	int inverted = readl(pwm->mmio_base + EP93XX_PWMx_INVERT) & 0x1;
-
-	return sprintf(buf, "%d\n", inverted);
-}
-
-static ssize_t ep93xx_pwm_set_invert(struct device *dev,
-		struct device_attribute *attr, const char *buf, size_t count)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
-	long val;
-	int err;
-
-	err = kstrtol(buf, 10, &val);
-	if (err)
-		return -EINVAL;
-
-	if (val == 0)
-		writel(0x0, pwm->mmio_base + EP93XX_PWMx_INVERT);
-	else if (val == 1)
-		writel(0x1, pwm->mmio_base + EP93XX_PWMx_INVERT);
-	else
-		return -EINVAL;
-
-	return count;
-}
-
-static DEVICE_ATTR(min_freq, S_IRUGO, ep93xx_pwm_get_min_freq, NULL);
-static DEVICE_ATTR(max_freq, S_IRUGO, ep93xx_pwm_get_max_freq, NULL);
-static DEVICE_ATTR(freq, S_IWUSR | S_IRUGO,
-		   ep93xx_pwm_get_freq, ep93xx_pwm_set_freq);
-static DEVICE_ATTR(duty_percent, S_IWUSR | S_IRUGO,
-		   ep93xx_pwm_get_duty_percent, ep93xx_pwm_set_duty_percent);
-static DEVICE_ATTR(invert, S_IWUSR | S_IRUGO,
-		   ep93xx_pwm_get_invert, ep93xx_pwm_set_invert);
-
-static struct attribute *ep93xx_pwm_attrs[] = {
-	&dev_attr_min_freq.attr,
-	&dev_attr_max_freq.attr,
-	&dev_attr_freq.attr,
-	&dev_attr_duty_percent.attr,
-	&dev_attr_invert.attr,
-	NULL
-};
-
-static const struct attribute_group ep93xx_pwm_sysfs_files = {
-	.attrs	= ep93xx_pwm_attrs,
-};
-
-static int ep93xx_pwm_probe(struct platform_device *pdev)
-{
-	struct ep93xx_pwm *pwm;
-	struct resource *res;
-	int ret;
-
-	pwm = devm_kzalloc(&pdev->dev, sizeof(*pwm), GFP_KERNEL);
-	if (!pwm)
-		return -ENOMEM;
-
-	pwm->clk = devm_clk_get(&pdev->dev, "pwm_clk");
-	if (IS_ERR(pwm->clk))
-		return PTR_ERR(pwm->clk);
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	pwm->mmio_base = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(pwm->mmio_base))
-		return PTR_ERR(pwm->mmio_base);
-
-	ret = ep93xx_pwm_acquire_gpio(pdev);
-	if (ret)
-		return ret;
-
-	ret = sysfs_create_group(&pdev->dev.kobj, &ep93xx_pwm_sysfs_files);
-	if (ret) {
-		ep93xx_pwm_release_gpio(pdev);
-		return ret;
-	}
-
-	pwm->duty_percent = 50;
-
-	/* disable pwm at startup. Avoids zero value. */
-	writel(0x0, pwm->mmio_base + EP93XX_PWMx_ENABLE);
-	writel(EP93XX_PWM_MAX_COUNT, pwm->mmio_base + EP93XX_PWMx_TERM_COUNT);
-	writel(EP93XX_PWM_MAX_COUNT/2, pwm->mmio_base + EP93XX_PWMx_DUTY_CYCLE);
-
-	clk_enable(pwm->clk);
-
-	platform_set_drvdata(pdev, pwm);
-	return 0;
-}
-
-static int ep93xx_pwm_remove(struct platform_device *pdev)
-{
-	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
-
-	writel(0x0, pwm->mmio_base + EP93XX_PWMx_ENABLE);
-	clk_disable(pwm->clk);
-	sysfs_remove_group(&pdev->dev.kobj, &ep93xx_pwm_sysfs_files);
-	ep93xx_pwm_release_gpio(pdev);
-
-	return 0;
-}
-
-static struct platform_driver ep93xx_pwm_driver = {
-	.driver		= {
-		.name	= "ep93xx-pwm",
-		.owner	= THIS_MODULE,
-	},
-	.probe		= ep93xx_pwm_probe,
-	.remove		= ep93xx_pwm_remove,
-};
-module_platform_driver(ep93xx_pwm_driver);
-
-MODULE_AUTHOR("Matthieu Crapet <mcrapet@gmail.com>, "
-	      "H Hartley Sweeten <hsweeten@visionengravers.com>");
-MODULE_DESCRIPTION("EP93xx PWM driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:ep93xx-pwm");
diff --git a/drivers/pwm/Kconfig b/drivers/pwm/Kconfig
index 75840b5cea6d..eece329d7872 100644
--- a/drivers/pwm/Kconfig
+++ b/drivers/pwm/Kconfig
@@ -62,6 +62,15 @@ config PWM_BFIN
 	  To compile this driver as a module, choose M here: the module
 	  will be called pwm-bfin.
 
+config PWM_EP93XX
+	tristate "Cirrus Logic EP93xx PWM support"
+	depends on ARCH_EP93XX
+	help
+	  Generic PWM framework driver for Cirrus Logic EP93xx.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called pwm-ep93xx.
+
 config PWM_IMX
 	tristate "i.MX PWM support"
 	depends on ARCH_MXC
diff --git a/drivers/pwm/Makefile b/drivers/pwm/Makefile
index 77a8c185c5b2..8b754e4dba4a 100644
--- a/drivers/pwm/Makefile
+++ b/drivers/pwm/Makefile
@@ -3,6 +3,7 @@ obj-$(CONFIG_PWM_SYSFS)		+= sysfs.o
 obj-$(CONFIG_PWM_AB8500)	+= pwm-ab8500.o
 obj-$(CONFIG_PWM_ATMEL_TCB)	+= pwm-atmel-tcb.o
 obj-$(CONFIG_PWM_BFIN)		+= pwm-bfin.o
+obj-$(CONFIG_PWM_EP93XX)	+= pwm-ep93xx.o
 obj-$(CONFIG_PWM_IMX)		+= pwm-imx.o
 obj-$(CONFIG_PWM_JZ4740)	+= pwm-jz4740.o
 obj-$(CONFIG_PWM_LPC32XX)	+= pwm-lpc32xx.o
diff --git a/drivers/pwm/pwm-ep93xx.c b/drivers/pwm/pwm-ep93xx.c
new file mode 100644
index 000000000000..33aa4461e1ce
--- /dev/null
+++ b/drivers/pwm/pwm-ep93xx.c
@@ -0,0 +1,230 @@
+/*
+ * PWM framework driver for Cirrus Logic EP93xx
+ *
+ * Copyright (c) 2009        Matthieu Crapet <mcrapet@gmail.com>
+ * Copyright (c) 2009, 2013  H Hartley Sweeten <hsweeten@visionengravers.com>
+ *
+ * EP9301/02 have only one channel:
+ *   platform device ep93xx-pwm.1 - PWMOUT1 (EGPIO14)
+ *
+ * EP9307 has only one channel:
+ *   platform device ep93xx-pwm.0 - PWMOUT
+ *
+ * EP9312/15 have two channels:
+ *   platform device ep93xx-pwm.0 - PWMOUT
+ *   platform device ep93xx-pwm.1 - PWMOUT1 (EGPIO14)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/pwm.h>
+
+#include <asm/div64.h>
+
+#include <mach/platform.h>	/* for ep93xx_pwm_{acquire,release}_gpio() */
+
+#define EP93XX_PWMx_TERM_COUNT	0x00
+#define EP93XX_PWMx_DUTY_CYCLE	0x04
+#define EP93XX_PWMx_ENABLE	0x08
+#define EP93XX_PWMx_INVERT	0x0c
+
+struct ep93xx_pwm {
+	void __iomem *base;
+	struct clk *clk;
+	struct pwm_chip chip;
+};
+
+static inline struct ep93xx_pwm *to_ep93xx_pwm(struct pwm_chip *chip)
+{
+	return container_of(chip, struct ep93xx_pwm, chip);
+}
+
+static int ep93xx_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
+{
+	struct platform_device *pdev = to_platform_device(chip->dev);
+
+	return ep93xx_pwm_acquire_gpio(pdev);
+}
+
+static void ep93xx_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
+{
+	struct platform_device *pdev = to_platform_device(chip->dev);
+
+	ep93xx_pwm_release_gpio(pdev);
+}
+
+static int ep93xx_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
+			     int duty_ns, int period_ns)
+{
+	struct ep93xx_pwm *ep93xx_pwm = to_ep93xx_pwm(chip);
+	void __iomem *base = ep93xx_pwm->base;
+	unsigned long long c;
+	unsigned long period_cycles;
+	unsigned long duty_cycles;
+	unsigned long term;
+	int ret = 0;
+
+	/*
+	 * The clock needs to be enabled to access the PWM registers.
+	 * Configuration can be changed at any time.
+	 */
+	if (!test_bit(PWMF_ENABLED, &pwm->flags)) {
+		ret = clk_enable(ep93xx_pwm->clk);
+		if (ret)
+			return ret;
+	}
+
+	c = clk_get_rate(ep93xx_pwm->clk);
+	c *= period_ns;
+	do_div(c, 1000000000);
+	period_cycles = c;
+
+	c = period_cycles;
+	c *= duty_ns;
+	do_div(c, period_ns);
+	duty_cycles = c;
+
+	if (period_cycles < 0x10000 && duty_cycles < 0x10000) {
+		term = readw(base + EP93XX_PWMx_TERM_COUNT);
+
+		/* Order is important if PWM is running */
+		if (period_cycles > term) {
+			writew(period_cycles, base + EP93XX_PWMx_TERM_COUNT);
+			writew(duty_cycles, base + EP93XX_PWMx_DUTY_CYCLE);
+		} else {
+			writew(duty_cycles, base + EP93XX_PWMx_DUTY_CYCLE);
+			writew(period_cycles, base + EP93XX_PWMx_TERM_COUNT);
+		}
+	} else {
+		ret = -EINVAL;
+	}
+
+	if (!test_bit(PWMF_ENABLED, &pwm->flags))
+		clk_disable(ep93xx_pwm->clk);
+
+	return ret;
+}
+
+static int ep93xx_pwm_polarity(struct pwm_chip *chip, struct pwm_device *pwm,
+			       enum pwm_polarity polarity)
+{
+	struct ep93xx_pwm *ep93xx_pwm = to_ep93xx_pwm(chip);
+	int ret;
+
+	/*
+	 * The clock needs to be enabled to access the PWM registers.
+	 * Polarity can only be changed when the PWM is disabled.
+	 */
+	ret = clk_enable(ep93xx_pwm->clk);
+	if (ret)
+		return ret;
+
+	if (polarity == PWM_POLARITY_INVERSED)
+		writew(0x1, ep93xx_pwm->base + EP93XX_PWMx_INVERT);
+	else
+		writew(0x0, ep93xx_pwm->base + EP93XX_PWMx_INVERT);
+
+	clk_disable(ep93xx_pwm->clk);
+
+	return 0;
+}
+
+static int ep93xx_pwm_enable(struct pwm_chip *chip, struct pwm_device *pwm)
+{
+	struct ep93xx_pwm *ep93xx_pwm = to_ep93xx_pwm(chip);
+	int ret;
+
+	ret = clk_enable(ep93xx_pwm->clk);
+	if (ret)
+		return ret;
+
+	writew(0x1, ep93xx_pwm->base + EP93XX_PWMx_ENABLE);
+
+	return 0;
+}
+
+static void ep93xx_pwm_disable(struct pwm_chip *chip, struct pwm_device *pwm)
+{
+	struct ep93xx_pwm *ep93xx_pwm = to_ep93xx_pwm(chip);
+
+	writew(0x0, ep93xx_pwm->base + EP93XX_PWMx_ENABLE);
+	clk_disable(ep93xx_pwm->clk);
+}
+
+static const struct pwm_ops ep93xx_pwm_ops = {
+	.request = ep93xx_pwm_request,
+	.free = ep93xx_pwm_free,
+	.config = ep93xx_pwm_config,
+	.set_polarity = ep93xx_pwm_polarity,
+	.enable = ep93xx_pwm_enable,
+	.disable = ep93xx_pwm_disable,
+	.owner = THIS_MODULE,
+};
+
+static int ep93xx_pwm_probe(struct platform_device *pdev)
+{
+	struct ep93xx_pwm *ep93xx_pwm;
+	struct resource *res;
+	int ret;
+
+	ep93xx_pwm = devm_kzalloc(&pdev->dev, sizeof(*ep93xx_pwm), GFP_KERNEL);
+	if (!ep93xx_pwm)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	ep93xx_pwm->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(ep93xx_pwm->base))
+		return PTR_ERR(ep93xx_pwm->base);
+
+	ep93xx_pwm->clk = devm_clk_get(&pdev->dev, "pwm_clk");
+	if (IS_ERR(ep93xx_pwm->clk))
+		return PTR_ERR(ep93xx_pwm->clk);
+
+	ep93xx_pwm->chip.dev = &pdev->dev;
+	ep93xx_pwm->chip.ops = &ep93xx_pwm_ops;
+	ep93xx_pwm->chip.base = -1;
+	ep93xx_pwm->chip.npwm = 1;
+
+	ret = pwmchip_add(&ep93xx_pwm->chip);
+	if (ret < 0)
+		return ret;
+
+	platform_set_drvdata(pdev, ep93xx_pwm);
+	return 0;
+}
+
+static int ep93xx_pwm_remove(struct platform_device *pdev)
+{
+	struct ep93xx_pwm *ep93xx_pwm = platform_get_drvdata(pdev);
+
+	return pwmchip_remove(&ep93xx_pwm->chip);
+}
+
+static struct platform_driver ep93xx_pwm_driver = {
+	.driver = {
+		.name = "ep93xx-pwm",
+	},
+	.probe = ep93xx_pwm_probe,
+	.remove = ep93xx_pwm_remove,
+};
+module_platform_driver(ep93xx_pwm_driver);
+
+MODULE_DESCRIPTION("Cirrus Logic EP93xx PWM driver");
+MODULE_AUTHOR("Matthieu Crapet <mcrapet@gmail.com>, "
+	      "H Hartley Sweeten <hsweeten@visionengravers.com>");
+MODULE_ALIAS("platform:ep93xx-pwm");
+MODULE_LICENSE("GPL");
-- 
cgit 


From b5eee19617a9d0b6e28fbbe7c669bbdc6a41a3e6 Mon Sep 17 00:00:00 2001
From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Sat, 21 Sep 2013 19:27:38 -0300
Subject: [media] media: Change variable type to bool

The variable frame_ready is only assigned the values true and false.
Change its type to bool.
The simplified semantic patch that find this problem is as
follows (http://coccinelle.lip6.fr/):
@exists@
type T;
identifier b;
@@
- T
+ bool
  b = ...;
  ... when any
  b = \(true\|false\)

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/cpia2/cpia2_usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/usb/cpia2/cpia2_usb.c b/drivers/media/usb/cpia2/cpia2_usb.c
index be1719283609..351a78a84c3d 100644
--- a/drivers/media/usb/cpia2/cpia2_usb.c
+++ b/drivers/media/usb/cpia2/cpia2_usb.c
@@ -209,7 +209,7 @@ static void cpia2_usb_complete(struct urb *urb)
 {
 	int i;
 	unsigned char *cdata;
-	static int frame_ready = false;
+	static bool frame_ready = false;
 	struct camera_data *cam = (struct camera_data *) urb->context;
 
 	if (urb->status!=0) {
-- 
cgit 


From 6c7e346974ad6d20898026f209581fb6dd8ce3f0 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Sun, 22 Sep 2013 23:20:48 -0300
Subject: [media] drivers: media: usb: b2c2: use usb_*_coherent() instead of
 pci_*_consistent() in flexcop-usb.c
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Some architectures do not support PCI, but still support USB, so need
let our usb driver try to use usb_* instead of pci_* to support these
architectures, or can not pass compiling.
The related error (with allmodconfig for arc):
    CC [M]  drivers/media/usb/b2c2/flexcop-usb.o
  drivers/media/usb/b2c2/flexcop-usb.c: In function ‘flexcop_usb_transfer_exit’:
  drivers/media/usb/b2c2/flexcop-usb.c:393: error: implicit declaration of function ‘pci_free_consistent’
  drivers/media/usb/b2c2/flexcop-usb.c: In function ‘flexcop_usb_transfer_init’:
  drivers/media/usb/b2c2/flexcop-usb.c:410: error: implicit declaration of function ‘pci_alloc_consistent’

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/b2c2/flexcop-usb.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/media/usb/b2c2/flexcop-usb.c b/drivers/media/usb/b2c2/flexcop-usb.c
index 8b6275f85908..0bd969063392 100644
--- a/drivers/media/usb/b2c2/flexcop-usb.c
+++ b/drivers/media/usb/b2c2/flexcop-usb.c
@@ -390,7 +390,7 @@ static void flexcop_usb_transfer_exit(struct flexcop_usb *fc_usb)
 		}
 
 	if (fc_usb->iso_buffer != NULL)
-		pci_free_consistent(NULL,
+		usb_free_coherent(fc_usb->udev,
 			fc_usb->buffer_size, fc_usb->iso_buffer,
 			fc_usb->dma_addr);
 }
@@ -407,8 +407,8 @@ static int flexcop_usb_transfer_init(struct flexcop_usb *fc_usb)
 			"each of %d bytes size = %d.\n", B2C2_USB_NUM_ISO_URB,
 			B2C2_USB_FRAMES_PER_ISO, frame_size, bufsize);
 
-	fc_usb->iso_buffer = pci_alloc_consistent(NULL,
-			bufsize, &fc_usb->dma_addr);
+	fc_usb->iso_buffer = usb_alloc_coherent(fc_usb->udev,
+			bufsize, GFP_KERNEL, &fc_usb->dma_addr);
 	if (fc_usb->iso_buffer == NULL)
 		return -ENOMEM;
 
-- 
cgit 


From 23c4919c6fd15e76fe245ad0158f8739a3fa0747 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 23 Sep 2013 23:35:50 -0300
Subject: [media] marvell-ccic: drop free_irq for devm_request_irq allocated
 irq

irq allocated with devm_request_irq should not be freed using
free_irq, because doing so causes a dangling pointer, and a
subsequent double free.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/marvell-ccic/mmp-driver.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/media/platform/marvell-ccic/mmp-driver.c b/drivers/media/platform/marvell-ccic/mmp-driver.c
index b5a19af5c587..3458fa0e2fd5 100644
--- a/drivers/media/platform/marvell-ccic/mmp-driver.c
+++ b/drivers/media/platform/marvell-ccic/mmp-driver.c
@@ -481,7 +481,6 @@ static int mmpcam_remove(struct mmp_camera *cam)
 	struct mmp_camera_platform_data *pdata;
 
 	mmpcam_remove_device(cam);
-	free_irq(cam->irq, mcam);
 	mccic_shutdown(mcam);
 	mmpcam_power_down(mcam);
 	pdata = cam->pdev->dev.platform_data;
-- 
cgit 


From ae44df2e21b50f9fff28ac75c57e399c04df812c Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 15 Oct 2013 18:29:22 +0200
Subject: usb: musb: call musb_start() only once in OTG mode

In commit 001dd84 ("usb: musb: start musb on the udc side, too") it was
ensured that the state engine is started also in OTG mode after a
removal / insertion of the gadget.
Unfortunately this change also introduced a bug: If the device is
configured as OTG and it connected with a remote host _without_ loading
a gadget then we bug() later (because musb->otg->gadget is not
initialized).
Initially I assumed it might be nice to have the host part of musb in
OTG mode working without having a gadget loaded. This bug and fact that
it wasn't working like this before the host/gadget split made me realize
that this was a silly idea.
This patch now introduces back the old behavior where in OTG mode the
host mode is only working after the gadget has been loaded.

Cc: stable@vger.kernel.org # v3.11
Cc: Daniel Mack <zonque@gmail.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/musb/musb_virthub.c | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c
index a523950c2b32..d8bbdb366beb 100644
--- a/drivers/usb/musb/musb_virthub.c
+++ b/drivers/usb/musb/musb_virthub.c
@@ -266,6 +266,23 @@ int musb_hub_status_data(struct usb_hcd *hcd, char *buf)
 	return retval;
 }
 
+static int musb_has_gadget(struct musb *musb)
+{
+	/*
+	 * In host-only mode we start a connection right away. In OTG mode
+	 * we have to wait until we loaded a gadget. We don't really need a
+	 * gadget if we operate as a host but we should not start a session
+	 * as a device without a gadget or else we explode.
+	 */
+#ifdef CONFIG_USB_MUSB_HOST
+	return 1;
+#else
+	if (musb->port_mode == MUSB_PORT_MODE_HOST)
+		return 1;
+	return musb->g.dev.driver != NULL;
+#endif
+}
+
 int musb_hub_control(
 	struct usb_hcd	*hcd,
 	u16		typeReq,
@@ -408,7 +425,7 @@ int musb_hub_control(
 			 * initialization logic, e.g. for OTG, or change any
 			 * logic relating to VBUS power-up.
 			 */
-			if (!hcd->self.is_b_host)
+			if (!hcd->self.is_b_host && musb_has_gadget(musb))
 				musb_start(musb);
 			break;
 		case USB_PORT_FEAT_RESET:
-- 
cgit 


From 8b9fcce2d88586b9a120ff3e039d8f42413f0bb0 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 15 Oct 2013 18:29:23 +0200
Subject: usb: musb: dsps: move try_idle to start hook

The timer is initialized right after musb is probed. There is actually
no need to have this timer running because _nothing_ will happen until
we have the gadget loaded. Also we need this timer only if we run in OTG
mode _and_ we need it also after the gadget has been replaced with
another one.

I've been looking at am35x.c, da8xx.c, omap2430.c, tusb6010.c. da8xx
seem to have the same problem as dsps and doing mostly the same thing.
tusb6010 seem to do something different and do some actual "idle / power
saving" work so I am not too comfortable to remove
musb_platform_try_idle() from musb_gadget_setup().

Therefore this patch does not start the timer if there is no gadget
active (which is at musb_gadget_setup() at time). In order to have the
timer active after the gadget is loaded it will be triggered from
dsps_musb_enable().

Cc: stable@vger.kernel.org # v3.11
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/musb/musb_dsps.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index c7fe16db6bb6..e0d81b8318ab 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -121,6 +121,7 @@ struct dsps_glue {
 	unsigned long last_timer;    /* last timer data for each instance */
 };
 
+static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout);
 /**
  * dsps_musb_enable - enable interrupts
  */
@@ -143,6 +144,7 @@ static void dsps_musb_enable(struct musb *musb)
 	/* Force the DRVVBUS IRQ so we can start polling for ID change. */
 	dsps_writel(reg_base, wrp->coreintr_set,
 		    (1 << wrp->drvvbus) << wrp->usb_shift);
+	dsps_musb_try_idle(musb, 0);
 }
 
 /**
@@ -234,6 +236,9 @@ static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout)
 	if (musb->port_mode == MUSB_PORT_MODE_HOST)
 		return;
 
+	if (!musb->g.dev.driver)
+		return;
+
 	if (time_after(glue->last_timer, timeout) &&
 				timer_pending(&glue->timer)) {
 		dev_dbg(musb->controller,
-- 
cgit 


From 807d0d2b35f94a8074d195bfdabe407f0089a694 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 15 Oct 2013 18:29:24 +0200
Subject: usb: musb: dsps: remove declartion for dsps_musb_try_idle()

This patch moves dsps_musb_try_idle() before dsps_musb_enable() so the
declaration (of dsps_musb_try_idle() can be removed.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/musb/musb_dsps.c | 75 ++++++++++++++++++++++----------------------
 1 file changed, 37 insertions(+), 38 deletions(-)

diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index e0d81b8318ab..9efba94c35f2 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -121,7 +121,43 @@ struct dsps_glue {
 	unsigned long last_timer;    /* last timer data for each instance */
 };
 
-static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout);
+static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout)
+{
+	struct device *dev = musb->controller;
+	struct dsps_glue *glue = dev_get_drvdata(dev->parent);
+
+	if (timeout == 0)
+		timeout = jiffies + msecs_to_jiffies(3);
+
+	/* Never idle if active, or when VBUS timeout is not set as host */
+	if (musb->is_active || (musb->a_wait_bcon == 0 &&
+				musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) {
+		dev_dbg(musb->controller, "%s active, deleting timer\n",
+				usb_otg_state_string(musb->xceiv->state));
+		del_timer(&glue->timer);
+		glue->last_timer = jiffies;
+		return;
+	}
+	if (musb->port_mode == MUSB_PORT_MODE_HOST)
+		return;
+
+	if (!musb->g.dev.driver)
+		return;
+
+	if (time_after(glue->last_timer, timeout) &&
+				timer_pending(&glue->timer)) {
+		dev_dbg(musb->controller,
+			"Longer idle timer already pending, ignoring...\n");
+		return;
+	}
+	glue->last_timer = timeout;
+
+	dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n",
+		usb_otg_state_string(musb->xceiv->state),
+			jiffies_to_msecs(timeout - jiffies));
+	mod_timer(&glue->timer, timeout);
+}
+
 /**
  * dsps_musb_enable - enable interrupts
  */
@@ -216,43 +252,6 @@ static void otg_timer(unsigned long _musb)
 	spin_unlock_irqrestore(&musb->lock, flags);
 }
 
-static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout)
-{
-	struct device *dev = musb->controller;
-	struct dsps_glue *glue = dev_get_drvdata(dev->parent);
-
-	if (timeout == 0)
-		timeout = jiffies + msecs_to_jiffies(3);
-
-	/* Never idle if active, or when VBUS timeout is not set as host */
-	if (musb->is_active || (musb->a_wait_bcon == 0 &&
-				musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) {
-		dev_dbg(musb->controller, "%s active, deleting timer\n",
-				usb_otg_state_string(musb->xceiv->state));
-		del_timer(&glue->timer);
-		glue->last_timer = jiffies;
-		return;
-	}
-	if (musb->port_mode == MUSB_PORT_MODE_HOST)
-		return;
-
-	if (!musb->g.dev.driver)
-		return;
-
-	if (time_after(glue->last_timer, timeout) &&
-				timer_pending(&glue->timer)) {
-		dev_dbg(musb->controller,
-			"Longer idle timer already pending, ignoring...\n");
-		return;
-	}
-	glue->last_timer = timeout;
-
-	dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n",
-		usb_otg_state_string(musb->xceiv->state),
-			jiffies_to_msecs(timeout - jiffies));
-	mod_timer(&glue->timer, timeout);
-}
-
 static irqreturn_t dsps_interrupt(int irq, void *hci)
 {
 	struct musb  *musb = hci;
-- 
cgit 


From 0f901c980110cd69b63670096465b35377e73b1c Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 15 Oct 2013 18:29:25 +0200
Subject: usb: musb: dsps: redo the otg timer

According to the comments, we rely on the OTG timer because the core
does not expose some important OTG details. So far this is all I
know. After playing with OTG I stumbled over a problem:
musb is recognized as a B-device without a problem. Whenever a cable is
plugged, the VBUS rises, musb recognizes this as a starting session,
sets the MUSB_DEVCTL_SESSION bit by itself and a RESET interrupt occurs,
the session starts. Good.
After a disconnect, the timer is started and re-starts itself because
it remains in B_IDLE with the BDEVICE set. I didn't figure the the
reason or the need for it. Nothing changes here except for OTG state
from B to A device if the BDEVICE bit disappears. This doesn't make much
sense to me because nothing happens after this. _IF_ we receive an
interrupt before the state change then we may act on wrong condition.
Plugging a B-device (and letting MUSB act as host) doesn't work here.
The reason seems to be that the MUSB tries to start a session, it fails
and then it removes the bit. So we never start as a host.

This patch sets the MUSB_DEVCTL_SESSION bit in the IDLE state so musb
can try to establish a session as host. After the bit is set, musb tries
to start a session and if it fails it clears the bit. Therefore it will
try over and over again until a session either as host or as device is
established.

The readout of the MUSB_DEVCTL register after the removal the
MUSB_DEVCTL_SESSION (in A_WAIT_BCON) has been removed because it did not
contain the BDEVICE bit set (in the second read) leading to A_IDLE. After
plugging a host musb assumed that it is also a host and complained about
a missing reset. However a third read of the register has has the BDEVICE
bit set so it seems that it is not stable.
This mostly what da8xx.c is doing except that we set the timer also
after A_WAIT_BCON so the session bit can be triggered.

Whit this change I was able to keep am335x-evm in OTG mode and plug in
either a HOST or a DEVICE and in a random order and the device was
recognized.

Cc: stable@vger.kernel.org # v3.11
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/musb/musb_dsps.c | 20 +++++++++-----------
 1 file changed, 9 insertions(+), 11 deletions(-)

diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 9efba94c35f2..e1da6702078a 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -209,6 +209,7 @@ static void otg_timer(unsigned long _musb)
 	const struct dsps_musb_wrapper *wrp = glue->wrp;
 	u8 devctl;
 	unsigned long flags;
+	int skip_session = 0;
 
 	/*
 	 * We poll because DSPS IP's won't expose several OTG-critical
@@ -221,10 +222,12 @@ static void otg_timer(unsigned long _musb)
 	spin_lock_irqsave(&musb->lock, flags);
 	switch (musb->xceiv->state) {
 	case OTG_STATE_A_WAIT_BCON:
-		devctl &= ~MUSB_DEVCTL_SESSION;
-		dsps_writeb(musb->mregs, MUSB_DEVCTL, devctl);
+		dsps_writeb(musb->mregs, MUSB_DEVCTL, 0);
+		skip_session = 1;
+		/* fall */
 
-		devctl = dsps_readb(musb->mregs, MUSB_DEVCTL);
+	case OTG_STATE_A_IDLE:
+	case OTG_STATE_B_IDLE:
 		if (devctl & MUSB_DEVCTL_BDEVICE) {
 			musb->xceiv->state = OTG_STATE_B_IDLE;
 			MUSB_DEV_MODE(musb);
@@ -232,20 +235,15 @@ static void otg_timer(unsigned long _musb)
 			musb->xceiv->state = OTG_STATE_A_IDLE;
 			MUSB_HST_MODE(musb);
 		}
+		if (!(devctl & MUSB_DEVCTL_SESSION) && !skip_session)
+			dsps_writeb(mregs, MUSB_DEVCTL, MUSB_DEVCTL_SESSION);
+		mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ);
 		break;
 	case OTG_STATE_A_WAIT_VFALL:
 		musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
 		dsps_writel(musb->ctrl_base, wrp->coreintr_set,
 			    MUSB_INTR_VBUSERROR << wrp->usb_shift);
 		break;
-	case OTG_STATE_B_IDLE:
-		devctl = dsps_readb(mregs, MUSB_DEVCTL);
-		if (devctl & MUSB_DEVCTL_BDEVICE)
-			mod_timer(&glue->timer,
-					jiffies + wrp->poll_seconds * HZ);
-		else
-			musb->xceiv->state = OTG_STATE_A_IDLE;
-		break;
 	default:
 		break;
 	}
-- 
cgit 


From 24616eb66a996d30bf6449feb313a29cd1083cf9 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 15 Oct 2013 18:29:26 +0200
Subject: usb: musb: dsps: run the timer only on OTG systems

I introduced this check here because it looked wrong in HOST only
configurions. The timer would remove that session bit and will never
come back and so there would not be another session.
Now that I played with OTG for a while I belive this workaround is
only required for the OTG mode because we have to end the session and
then we have to try to start manually.
Therefore, this patch limits this timer to the OTG only port mode so we
don't need to poll around in device only mode.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/musb/musb_dsps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index e1da6702078a..82e1da08a67b 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -138,7 +138,7 @@ static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout)
 		glue->last_timer = jiffies;
 		return;
 	}
-	if (musb->port_mode == MUSB_PORT_MODE_HOST)
+	if (musb->port_mode != MUSB_PORT_MODE_DUAL_ROLE)
 		return;
 
 	if (!musb->g.dev.driver)
-- 
cgit 


From 2c6e24ce1aa6b3b147c75d488c2797ee258eb22b Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 15 Oct 2013 09:17:49 +1100
Subject: xfs: prevent deadlock trying to cover an active log

Recent analysis of a deadlocked XFS filesystem from a kernel
crash dump indicated that the filesystem was stuck waiting for log
space. The short story of the hang on the RHEL6 kernel is this:

	- the tail of the log is pinned by an inode
	- the inode has been pushed by the xfsaild
	- the inode has been flushed to it's backing buffer and is
	  currently flush locked and hence waiting for backing
	  buffer IO to complete and remove it from the AIL
	- the backing buffer is marked for write - it is on the
	  delayed write queue
	- the inode buffer has been modified directly and logged
	  recently due to unlinked inode list modification
	- the backing buffer is pinned in memory as it is in the
	  active CIL context.
	- the xfsbufd won't start buffer writeback because it is
	  pinned
	- xfssyncd won't force the log because it sees the log as
	  needing to be covered and hence wants to issue a dummy
	  transaction to move the log covering state machine along.

Hence there is no trigger to force the CIL to the log and hence
unpin the inode buffer and therefore complete the inode IO, remove
it from the AIL and hence move the tail of the log along, allowing
transactions to start again.

Mainline kernels also have the same deadlock, though the signature
is slightly different - the inode buffer never reaches the delayed
write lists because xfs_buf_item_push() sees that it is pinned and
hence never adds it to the delayed write list that the xfsaild
flushes.

There are two possible solutions here. The first is to simply force
the log before trying to cover the log and so ensure that the CIL is
emptied before we try to reserve space for the dummy transaction in
the xfs_log_worker(). While this might work most of the time, it is
still racy and is no guarantee that we don't get stuck in
xfs_trans_reserve waiting for log space to come free. Hence it's not
the best way to solve the problem.

The second solution is to modify xfs_log_need_covered() to be aware
of the CIL. We only should be attempting to cover the log if there
is no current activity in the log - covering the log is the process
of ensuring that the head and tail in the log on disk are identical
(i.e. the log is clean and at idle). Hence, by definition, if there
are items in the CIL then the log is not at idle and so we don't
need to attempt to cover it.

When we don't need to cover the log because it is active or idle, we
issue a log force from xfs_log_worker() - if the log is idle, then
this does nothing.  However, if the log is active due to there being
items in the CIL, it will force the items in the CIL to the log and
unpin them.

In the case of the above deadlock scenario, instead of
xfs_log_worker() getting stuck in xfs_trans_reserve() attempting to
cover the log, it will instead force the log, thereby unpinning the
inode buffer, allowing IO to be issued and complete and hence
removing the inode that was pinning the tail of the log from the
AIL. At that point, everything will start moving along again. i.e.
the xfs_log_worker turns back into a watchdog that can alleviate
deadlocks based around pinned items that prevent the tail of the log
from being moved...

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_log.c      | 48 +++++++++++++++++++++++++++++-------------------
 fs/xfs/xfs_log_cil.c  | 14 ++++++++++++++
 fs/xfs/xfs_log_priv.h | 10 ++++------
 3 files changed, 47 insertions(+), 25 deletions(-)

diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index a2dea108071a..613ed9414e70 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -1000,27 +1000,34 @@ xfs_log_space_wake(
 }
 
 /*
- * Determine if we have a transaction that has gone to disk
- * that needs to be covered. To begin the transition to the idle state
- * firstly the log needs to be idle (no AIL and nothing in the iclogs).
- * If we are then in a state where covering is needed, the caller is informed
- * that dummy transactions are required to move the log into the idle state.
+ * Determine if we have a transaction that has gone to disk that needs to be
+ * covered. To begin the transition to the idle state firstly the log needs to
+ * be idle. That means the CIL, the AIL and the iclogs needs to be empty before
+ * we start attempting to cover the log.
  *
- * Because this is called as part of the sync process, we should also indicate
- * that dummy transactions should be issued in anything but the covered or
- * idle states. This ensures that the log tail is accurately reflected in
- * the log at the end of the sync, hence if a crash occurrs avoids replay
- * of transactions where the metadata is already on disk.
+ * Only if we are then in a state where covering is needed, the caller is
+ * informed that dummy transactions are required to move the log into the idle
+ * state.
+ *
+ * If there are any items in the AIl or CIL, then we do not want to attempt to
+ * cover the log as we may be in a situation where there isn't log space
+ * available to run a dummy transaction and this can lead to deadlocks when the
+ * tail of the log is pinned by an item that is modified in the CIL.  Hence
+ * there's no point in running a dummy transaction at this point because we
+ * can't start trying to idle the log until both the CIL and AIL are empty.
  */
 int
 xfs_log_need_covered(xfs_mount_t *mp)
 {
-	int		needed = 0;
 	struct xlog	*log = mp->m_log;
+	int		needed = 0;
 
 	if (!xfs_fs_writable(mp))
 		return 0;
 
+	if (!xlog_cil_empty(log))
+		return 0;
+
 	spin_lock(&log->l_icloglock);
 	switch (log->l_covered_state) {
 	case XLOG_STATE_COVER_DONE:
@@ -1029,14 +1036,17 @@ xfs_log_need_covered(xfs_mount_t *mp)
 		break;
 	case XLOG_STATE_COVER_NEED:
 	case XLOG_STATE_COVER_NEED2:
-		if (!xfs_ail_min_lsn(log->l_ailp) &&
-		    xlog_iclogs_empty(log)) {
-			if (log->l_covered_state == XLOG_STATE_COVER_NEED)
-				log->l_covered_state = XLOG_STATE_COVER_DONE;
-			else
-				log->l_covered_state = XLOG_STATE_COVER_DONE2;
-		}
-		/* FALLTHRU */
+		if (xfs_ail_min_lsn(log->l_ailp))
+			break;
+		if (!xlog_iclogs_empty(log))
+			break;
+
+		needed = 1;
+		if (log->l_covered_state == XLOG_STATE_COVER_NEED)
+			log->l_covered_state = XLOG_STATE_COVER_DONE;
+		else
+			log->l_covered_state = XLOG_STATE_COVER_DONE2;
+		break;
 	default:
 		needed = 1;
 		break;
diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c
index cfe97973ba36..da8524e779b6 100644
--- a/fs/xfs/xfs_log_cil.c
+++ b/fs/xfs/xfs_log_cil.c
@@ -711,6 +711,20 @@ xlog_cil_push_foreground(
 	xlog_cil_push(log);
 }
 
+bool
+xlog_cil_empty(
+	struct xlog	*log)
+{
+	struct xfs_cil	*cil = log->l_cilp;
+	bool		empty = false;
+
+	spin_lock(&cil->xc_push_lock);
+	if (list_empty(&cil->xc_cil))
+		empty = true;
+	spin_unlock(&cil->xc_push_lock);
+	return empty;
+}
+
 /*
  * Commit a transaction with the given vector to the Committed Item List.
  *
diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h
index 136654b9400d..f80cff26fda9 100644
--- a/fs/xfs/xfs_log_priv.h
+++ b/fs/xfs/xfs_log_priv.h
@@ -514,12 +514,10 @@ xlog_assign_grant_head(atomic64_t *head, int cycle, int space)
 /*
  * Committed Item List interfaces
  */
-int
-xlog_cil_init(struct xlog *log);
-void
-xlog_cil_init_post_recovery(struct xlog *log);
-void
-xlog_cil_destroy(struct xlog *log);
+int	xlog_cil_init(struct xlog *log);
+void	xlog_cil_init_post_recovery(struct xlog *log);
+void	xlog_cil_destroy(struct xlog *log);
+bool	xlog_cil_empty(struct xlog *log);
 
 /*
  * CIL force routines
-- 
cgit 


From 4d72b5afc0bd3e97bb5871b52fd7904c78961ff0 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Thu, 17 Oct 2013 19:55:58 +0530
Subject: Staging: lustre: Removal of Space between function name and
 parenthesis in conrpc.c

The patch fixes the following checkpatch.pl warning in conrpc.c-
WARNING: space prohibited between function name and open parenthesis '('

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/selftest/conrpc.c | 58 +++++++++++++--------------
 1 file changed, 29 insertions(+), 29 deletions(-)

diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c
index cbce662b987b..de4b0615decd 100644
--- a/drivers/staging/lustre/lnet/selftest/conrpc.c
+++ b/drivers/staging/lustre/lnet/selftest/conrpc.c
@@ -75,7 +75,7 @@ lstcon_rpc_done(srpc_client_rpc_t *rpc)
 
 	if (crpc->crp_stamp == 0) {
 		/* not aborted */
-		LASSERT (crpc->crp_status == 0);
+		LASSERT(crpc->crp_status == 0);
 
 		crpc->crp_stamp  = cfs_time_current();
 		crpc->crp_status = rpc->crpc_status;
@@ -153,7 +153,7 @@ lstcon_rpc_put(lstcon_rpc_t *crpc)
 	srpc_bulk_t *bulk = &crpc->crp_rpc->crpc_bulk;
 	int	  i;
 
-	LASSERT (list_empty(&crpc->crp_link));
+	LASSERT(list_empty(&crpc->crp_link));
 
 	for (i = 0; i < bulk->bk_niov; i++) {
 		if (bulk->bk_iovs[i].kiov_page == NULL)
@@ -187,7 +187,7 @@ lstcon_rpc_post(lstcon_rpc_t *crpc)
 {
 	lstcon_rpc_trans_t *trans = crpc->crp_trans;
 
-	LASSERT (trans != NULL);
+	LASSERT(trans != NULL);
 
 	atomic_inc(&trans->tas_remaining);
 	crpc->crp_posted = 1;
@@ -289,7 +289,7 @@ lstcon_rpc_trans_abort(lstcon_rpc_trans_t *trans, int error)
 	lstcon_rpc_t      *crpc;
 	lstcon_node_t     *nd;
 
-	list_for_each_entry (crpc, &trans->tas_rpcs_list, crp_link) {
+	list_for_each_entry(crpc, &trans->tas_rpcs_list, crp_link) {
 		rpc = crpc->crp_rpc;
 
 		spin_lock(&rpc->crpc_lock);
@@ -349,8 +349,8 @@ lstcon_rpc_trans_postwait(lstcon_rpc_trans_t *trans, int timeout)
 	       lstcon_rpc_trans_name(trans->tas_opc));
 
 	/* post all requests */
-	list_for_each_entry (crpc, &trans->tas_rpcs_list, crp_link) {
-		LASSERT (!crpc->crp_posted);
+	list_for_each_entry(crpc, &trans->tas_rpcs_list, crp_link) {
+		LASSERT(!crpc->crp_posted);
 
 		lstcon_rpc_post(crpc);
 	}
@@ -390,8 +390,8 @@ lstcon_rpc_get_reply(lstcon_rpc_t *crpc, srpc_msg_t **msgpp)
 	srpc_client_rpc_t    *rpc = crpc->crp_rpc;
 	srpc_generic_reply_t *rep;
 
-	LASSERT (nd != NULL && rpc != NULL);
-	LASSERT (crpc->crp_stamp != 0);
+	LASSERT(nd != NULL && rpc != NULL);
+	LASSERT(crpc->crp_stamp != 0);
 
 	if (crpc->crp_status != 0) {
 		*msgpp = NULL;
@@ -427,14 +427,14 @@ lstcon_rpc_trans_stat(lstcon_rpc_trans_t *trans, lstcon_trans_stat_t *stat)
 	srpc_msg_t	*rep;
 	int		error;
 
-	LASSERT (stat != NULL);
+	LASSERT(stat != NULL);
 
 	memset(stat, 0, sizeof(*stat));
 
 	list_for_each_entry(crpc, &trans->tas_rpcs_list, crp_link) {
 		lstcon_rpc_stat_total(stat, 1);
 
-		LASSERT (crpc->crp_stamp != 0);
+		LASSERT(crpc->crp_stamp != 0);
 
 		error = lstcon_rpc_get_reply(crpc, &rep);
 		if (error != 0) {
@@ -482,7 +482,7 @@ lstcon_rpc_trans_interpreter(lstcon_rpc_trans_t *trans,
 	struct timeval	tv;
 	int		   error;
 
-	LASSERT (head_up != NULL);
+	LASSERT(head_up != NULL);
 
 	next = head_up;
 
@@ -498,7 +498,7 @@ lstcon_rpc_trans_interpreter(lstcon_rpc_trans_t *trans,
 
 		ent = list_entry(next, lstcon_rpc_ent_t, rpe_link);
 
-		LASSERT (crpc->crp_stamp != 0);
+		LASSERT(crpc->crp_stamp != 0);
 
 		error = lstcon_rpc_get_reply(crpc, &msg);
 
@@ -568,7 +568,7 @@ lstcon_rpc_trans_destroy(lstcon_rpc_trans_t *trans)
 		 * user wait for them, just abandon them, they will be recycled
 		 * in callback */
 
-		LASSERT (crpc->crp_status != 0);
+		LASSERT(crpc->crp_status != 0);
 
 		crpc->crp_node  = NULL;
 		crpc->crp_trans = NULL;
@@ -580,7 +580,7 @@ lstcon_rpc_trans_destroy(lstcon_rpc_trans_t *trans)
 		atomic_dec(&trans->tas_remaining);
 	}
 
-	LASSERT (atomic_read(&trans->tas_remaining) == 0);
+	LASSERT(atomic_read(&trans->tas_remaining) == 0);
 
 	list_del(&trans->tas_link);
 	if (!list_empty(&trans->tas_olink))
@@ -676,7 +676,7 @@ lstcon_batrpc_prep(lstcon_node_t *nd, int transop, unsigned feats,
 	    transop != LST_TRANS_TSBSTOP)
 		return 0;
 
-	LASSERT (tsb->tsb_index == 0);
+	LASSERT(tsb->tsb_index == 0);
 
 	batch = (lstcon_batch_t *)tsb;
 	brq->bar_arg = batch->bat_arg;
@@ -710,7 +710,7 @@ lstcon_next_id(int idx, int nkiov, lnet_kiov_t *kiov)
 
 	i = idx / SFW_ID_PER_PAGE;
 
-	LASSERT (i < nkiov);
+	LASSERT(i < nkiov);
 
 	pid = (lnet_process_id_packed_t *)page_address(kiov[i].kiov_page);
 
@@ -728,9 +728,9 @@ lstcon_dstnodes_prep(lstcon_group_t *grp, int idx,
 	int		       end;
 	int		       i = 0;
 
-	LASSERT (dist >= 1);
-	LASSERT (span >= 1);
-	LASSERT (grp->grp_nnode >= 1);
+	LASSERT(dist >= 1);
+	LASSERT(span >= 1);
+	LASSERT(grp->grp_nnode >= 1);
 
 	if (span > grp->grp_nnode)
 		return -EINVAL;
@@ -866,7 +866,7 @@ lstcon_testrpc_prep(lstcon_node_t *nd, int transop, unsigned feats,
 
 		bulk->bk_sink = 0;
 
-		LASSERT (transop == LST_TRANS_TSBCLIADD);
+		LASSERT(transop == LST_TRANS_TSBCLIADD);
 
 		rc = lstcon_dstnodes_prep(test->tes_dst_grp,
 					  test->tes_cliidx++,
@@ -1193,7 +1193,7 @@ lstcon_rpc_pinger(void *arg)
 
 	trans = console_session.ses_ping;
 
-	LASSERT (trans != NULL);
+	LASSERT(trans != NULL);
 
 	list_for_each_entry(ndl, &console_session.ses_ndl_list, ndl_link) {
 		nd = ndl->ndl_node;
@@ -1219,8 +1219,8 @@ lstcon_rpc_pinger(void *arg)
 		crpc = &nd->nd_ping;
 
 		if (crpc->crp_rpc != NULL) {
-			LASSERT (crpc->crp_trans == trans);
-			LASSERT (!list_empty(&crpc->crp_link));
+			LASSERT(crpc->crp_trans == trans);
+			LASSERT(!list_empty(&crpc->crp_link));
 
 			spin_lock(&crpc->crp_rpc->crpc_lock);
 
@@ -1286,8 +1286,8 @@ lstcon_rpc_pinger_start(void)
 	stt_timer_t    *ptimer;
 	int	     rc;
 
-	LASSERT (list_empty(&console_session.ses_rpc_freelist));
-	LASSERT (atomic_read(&console_session.ses_rpc_counter) == 0);
+	LASSERT(list_empty(&console_session.ses_rpc_freelist));
+	LASSERT(atomic_read(&console_session.ses_rpc_counter) == 0);
 
 	rc = lstcon_rpc_trans_prep(NULL, LST_TRANS_SESPING,
 				   &console_session.ses_ping);
@@ -1307,7 +1307,7 @@ lstcon_rpc_pinger_start(void)
 void
 lstcon_rpc_pinger_stop(void)
 {
-	LASSERT (console_session.ses_shutdown);
+	LASSERT(console_session.ses_shutdown);
 
 	stt_del_timer(&console_session.ses_ping_timer);
 
@@ -1330,7 +1330,7 @@ lstcon_rpc_cleanup_wait(void)
 
 	/* Called with hold of global mutex */
 
-	LASSERT (console_session.ses_shutdown);
+	LASSERT(console_session.ses_shutdown);
 
 	while (!list_empty(&console_session.ses_trans_list)) {
 		list_for_each(pacer, &console_session.ses_trans_list) {
@@ -1392,6 +1392,6 @@ lstcon_rpc_module_init(void)
 void
 lstcon_rpc_module_fini(void)
 {
-	LASSERT (list_empty(&console_session.ses_rpc_freelist));
-	LASSERT (atomic_read(&console_session.ses_rpc_counter) == 0);
+	LASSERT(list_empty(&console_session.ses_rpc_freelist));
+	LASSERT(atomic_read(&console_session.ses_rpc_counter) == 0);
 }
-- 
cgit 


From 98d1bbddc6415cef0bcf0da88e0ff86e08e51737 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Thu, 17 Oct 2013 19:56:52 +0530
Subject: Staging: lustre: Fix Space Requirement around ':' in conrpc.c

The patch fixes the following checkpatch.pl error in conrpc.c-
ERROR: spaces required around that ':'

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/selftest/conrpc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c
index de4b0615decd..8b0ed72bf6c6 100644
--- a/drivers/staging/lustre/lnet/selftest/conrpc.c
+++ b/drivers/staging/lustre/lnet/selftest/conrpc.c
@@ -330,7 +330,7 @@ lstcon_rpc_trans_check(lstcon_rpc_trans_t *trans)
 	    !list_empty(&trans->tas_olink)) /* Not an end session RPC */
 		return 1;
 
-	return (atomic_read(&trans->tas_remaining) == 0) ? 1: 0;
+	return (atomic_read(&trans->tas_remaining) == 0) ? 1 : 0;
 }
 
 int
@@ -669,7 +669,7 @@ lstcon_batrpc_prep(lstcon_node_t *nd, int transop, unsigned feats,
 	brq->bar_bid     = tsb->tsb_id;
 	brq->bar_testidx = tsb->tsb_index;
 	brq->bar_opc     = transop == LST_TRANS_TSBRUN ? SRPC_BATCH_OPC_RUN :
-			   (transop == LST_TRANS_TSBSTOP ? SRPC_BATCH_OPC_STOP:
+			   (transop == LST_TRANS_TSBSTOP ? SRPC_BATCH_OPC_STOP :
 			    SRPC_BATCH_OPC_QUERY);
 
 	if (transop != LST_TRANS_TSBRUN &&
@@ -745,7 +745,7 @@ lstcon_dstnodes_prep(lstcon_group_t *grp, int idx,
 			continue;
 		}
 
-		if (i > (end >= start ? end: grp->grp_nnode))
+		if (i > (end >= start ? end : grp->grp_nnode))
 			break;
 
 		pid = lstcon_next_id((i - start), nkiov, kiov);
-- 
cgit 


From fc831a90494f5a172b6ccca21187610d64bebe8f Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Thu, 17 Oct 2013 19:57:26 +0530
Subject: Staging: lustre: Fix Space Prohibition before '++' in conrpc.c

This patch fixes the following checkpatch.pl error in conrpc.c-
ERROR: space prohibited before that '++'

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/selftest/conrpc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c
index 8b0ed72bf6c6..263bf6276161 100644
--- a/drivers/staging/lustre/lnet/selftest/conrpc.c
+++ b/drivers/staging/lustre/lnet/selftest/conrpc.c
@@ -573,7 +573,7 @@ lstcon_rpc_trans_destroy(lstcon_rpc_trans_t *trans)
 		crpc->crp_node  = NULL;
 		crpc->crp_trans = NULL;
 		list_del_init(&crpc->crp_link);
-		count ++;
+		count++;
 
 		spin_unlock(&rpc->crpc_lock);
 
@@ -741,7 +741,7 @@ lstcon_dstnodes_prep(lstcon_group_t *grp, int idx,
 	list_for_each_entry(ndl, &grp->grp_ndl_list, ndl_link) {
 		nd = ndl->ndl_node;
 		if (i < start) {
-			i ++;
+			i++;
 			continue;
 		}
 
@@ -1264,7 +1264,7 @@ lstcon_rpc_pinger(void *arg)
 		lstcon_rpc_trans_addreq(trans, crpc);
 		lstcon_rpc_post(crpc);
 
-		count ++;
+		count++;
 	}
 
 	if (console_session.ses_expired) {
-- 
cgit 


From eac2e8c6f50a4a67513741251b18dfa7ca282e2c Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Thu, 17 Oct 2013 19:58:12 +0530
Subject: Staging: lustre: Fix quoted string split across lines in conrpc.c

This patch fixes the following checkpatch.pl warning in conrpc.c-
WARNING: quoted string split across lines conrpc.c

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/selftest/conrpc.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c
index 263bf6276161..88a495641faa 100644
--- a/drivers/staging/lustre/lnet/selftest/conrpc.c
+++ b/drivers/staging/lustre/lnet/selftest/conrpc.c
@@ -455,8 +455,7 @@ lstcon_rpc_trans_stat(lstcon_rpc_trans_t *trans, lstcon_trans_stat_t *stat)
 		      lstcon_session_feats_check(trans->tas_features);
 	}
 
-	CDEBUG(D_NET, "transaction %s : success %d, failure %d, total %d, "
-		      "RPC error(%d), Framework error(%d)\n",
+	CDEBUG(D_NET, "transaction %s : success %d, failure %d, total %d, RPC error(%d), Framework error(%d)\n",
 	       lstcon_rpc_trans_name(trans->tas_opc),
 	       lstcon_rpc_stat_success(stat, 0),
 	       lstcon_rpc_stat_failure(stat, 0),
@@ -942,8 +941,7 @@ lstcon_sesnew_stat_reply(lstcon_rpc_trans_t *trans,
 	}
 
 	if (reply->msg_ses_feats != trans->tas_features) {
-		CNETERR("Framework features %x from %s is different with "
-			"features on this transaction: %x\n",
+		CNETERR("Framework features %x from %s is different with features on this transaction: %x\n",
 			 reply->msg_ses_feats, libcfs_nid2str(nd->nd_id.nid),
 			 trans->tas_features);
 		status = mksn_rep->mksn_status = EPROTO;
@@ -1107,8 +1105,8 @@ lstcon_rpc_trans_ndlist(struct list_head *ndlist,
 			continue;
 
 		if (rc < 0) {
-			CDEBUG(D_NET, "Condition error while creating RPC "
-				      " for transaction %d: %d\n", transop, rc);
+			CDEBUG(D_NET, "Condition error while creating RPC for transaction %d: %d\n",
+					transop, rc);
 			break;
 		}
 
@@ -1345,8 +1343,7 @@ lstcon_rpc_cleanup_wait(void)
 
 		mutex_unlock(&console_session.ses_mutex);
 
-		CWARN("Session is shutting down, "
-		      "waiting for termination of transactions\n");
+		CWARN("Session is shutting down, waiting for termination of transactions\n");
 		cfs_pause(cfs_time_seconds(1));
 
 		mutex_lock(&console_session.ses_mutex);
@@ -1356,8 +1353,7 @@ lstcon_rpc_cleanup_wait(void)
 
 	lst_wait_until((atomic_read(&console_session.ses_rpc_counter) == 0),
 		       console_session.ses_rpc_lock,
-		       "Network is not accessible or target is down, "
-		       "waiting for %d console RPCs to being recycled\n",
+		       "Network is not accessible or target is down, waiting for %d console RPCs to being recycled\n",
 		       atomic_read(&console_session.ses_rpc_counter));
 
 	list_add(&zlist, &console_session.ses_rpc_freelist);
-- 
cgit 


From b0834c8728d90ea79a76e9d3d6fa573beb37488d Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Thu, 17 Oct 2013 19:58:45 +0530
Subject: Staging: lustre: Removal of assignment in if condition in conrpc.c

This patch fixes the following checkpatch.pl error in conrpc.c-
ERROR: do not use assignment in if condition

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/selftest/conrpc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lnet/selftest/conrpc.c b/drivers/staging/lustre/lnet/selftest/conrpc.c
index 88a495641faa..9a52f25b72e9 100644
--- a/drivers/staging/lustre/lnet/selftest/conrpc.c
+++ b/drivers/staging/lustre/lnet/selftest/conrpc.c
@@ -531,7 +531,9 @@ lstcon_rpc_trans_interpreter(lstcon_rpc_trans_t *trans,
 		if (readent == NULL)
 			continue;
 
-		if ((error = readent(trans->tas_opc, msg, ent)) != 0)
+		error = readent(trans->tas_opc, msg, ent);
+
+		if (error != 0)
 			return error;
 	}
 
-- 
cgit 


From d79a44115196980beb786ab6d2effe09913cf243 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Thu, 17 Oct 2013 20:00:09 +0530
Subject: Staging: lustre: Removal of Space between function name and
 parenthesis in timer.c

The patch fixes the following checkpatch.pl warning in timer.c-
WARNING: space prohibited between function name and open parenthesis '(

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/selftest/timer.c | 34 ++++++++++++++--------------
 1 file changed, 17 insertions(+), 17 deletions(-)

diff --git a/drivers/staging/lustre/lnet/selftest/timer.c b/drivers/staging/lustre/lnet/selftest/timer.c
index 3bf4afb42ffe..82fd363679cb 100644
--- a/drivers/staging/lustre/lnet/selftest/timer.c
+++ b/drivers/staging/lustre/lnet/selftest/timer.c
@@ -74,14 +74,14 @@ stt_add_timer(stt_timer_t *timer)
 
 	spin_lock(&stt_data.stt_lock);
 
-	LASSERT (stt_data.stt_nthreads > 0);
-	LASSERT (!stt_data.stt_shuttingdown);
-	LASSERT (timer->stt_func != NULL);
-	LASSERT (list_empty(&timer->stt_list));
-	LASSERT (cfs_time_after(timer->stt_expires, cfs_time_current_sec()));
+	LASSERT(stt_data.stt_nthreads > 0);
+	LASSERT(!stt_data.stt_shuttingdown);
+	LASSERT(timer->stt_func != NULL);
+	LASSERT(list_empty(&timer->stt_list));
+	LASSERT(cfs_time_after(timer->stt_expires, cfs_time_current_sec()));
 
 	/* a simple insertion sort */
-	list_for_each_prev (pos, STTIMER_SLOT(timer->stt_expires)) {
+	list_for_each_prev(pos, STTIMER_SLOT(timer->stt_expires)) {
 		stt_timer_t *old = list_entry(pos, stt_timer_t, stt_list);
 
 		if (cfs_time_aftereq(timer->stt_expires, old->stt_expires))
@@ -102,14 +102,14 @@ stt_add_timer(stt_timer_t *timer)
  * another CPU.
  */
 int
-stt_del_timer (stt_timer_t *timer)
+stt_del_timer(stt_timer_t *timer)
 {
 	int ret = 0;
 
 	spin_lock(&stt_data.stt_lock);
 
-	LASSERT (stt_data.stt_nthreads > 0);
-	LASSERT (!stt_data.stt_shuttingdown);
+	LASSERT(stt_data.stt_nthreads > 0);
+	LASSERT(!stt_data.stt_shuttingdown);
 
 	if (!list_empty(&timer->stt_list)) {
 		ret = 1;
@@ -122,7 +122,7 @@ stt_del_timer (stt_timer_t *timer)
 
 /* called with stt_data.stt_lock held */
 int
-stt_expire_list (struct list_head *slot, cfs_time_t now)
+stt_expire_list(struct list_head *slot, cfs_time_t now)
 {
 	int	  expired = 0;
 	stt_timer_t *timer;
@@ -146,7 +146,7 @@ stt_expire_list (struct list_head *slot, cfs_time_t now)
 }
 
 int
-stt_check_timers (cfs_time_t *last)
+stt_check_timers(cfs_time_t *last)
 {
 	int	expired = 0;
 	cfs_time_t now;
@@ -169,7 +169,7 @@ stt_check_timers (cfs_time_t *last)
 
 
 int
-stt_timer_main (void *arg)
+stt_timer_main(void *arg)
 {
 	int rc = 0;
 	UNUSED(arg);
@@ -193,7 +193,7 @@ stt_timer_main (void *arg)
 }
 
 int
-stt_start_timer_thread (void)
+stt_start_timer_thread(void)
 {
 	struct task_struct *task;
 
@@ -211,7 +211,7 @@ stt_start_timer_thread (void)
 
 
 int
-stt_startup (void)
+stt_startup(void)
 {
 	int rc = 0;
 	int i;
@@ -227,20 +227,20 @@ stt_startup (void)
 	init_waitqueue_head(&stt_data.stt_waitq);
 	rc = stt_start_timer_thread();
 	if (rc != 0)
-		CERROR ("Can't spawn timer thread: %d\n", rc);
+		CERROR("Can't spawn timer thread: %d\n", rc);
 
 	return rc;
 }
 
 void
-stt_shutdown (void)
+stt_shutdown(void)
 {
 	int i;
 
 	spin_lock(&stt_data.stt_lock);
 
 	for (i = 0; i < STTIMER_NSLOTS; i++)
-		LASSERT (list_empty(&stt_data.stt_hash[i]));
+		LASSERT(list_empty(&stt_data.stt_hash[i]));
 
 	stt_data.stt_shuttingdown = 1;
 
-- 
cgit 


From 8009ae1a082c29c7846d715d47859b5b80ed140e Mon Sep 17 00:00:00 2001
From: Archana kumari <archanakumari959@gmail.com>
Date: Thu, 17 Oct 2013 15:54:44 +0530
Subject: staging: vt6655: Fix Sparse Warning for Static Declarations

This patch fixes the Sparse Warning "symbol was not declared. Should it be
static?" in aes_ccmp.c

Signed-off-by: Archana kumari <archanakumari959@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6655/aes_ccmp.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/vt6655/aes_ccmp.c b/drivers/staging/vt6655/aes_ccmp.c
index fc056fc61995..82b0bd1c056a 100644
--- a/drivers/staging/vt6655/aes_ccmp.c
+++ b/drivers/staging/vt6655/aes_ccmp.c
@@ -46,7 +46,7 @@
  * SBOX Table
  */
 
-unsigned char sbox_table[256] =
+static unsigned char sbox_table[256] =
 {
 	0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76,
 	0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0,
@@ -66,7 +66,7 @@ unsigned char sbox_table[256] =
 	0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16
 };
 
-unsigned char dot2_table[256] = {
+static unsigned char dot2_table[256] = {
 	0x00, 0x02, 0x04, 0x06, 0x08, 0x0a, 0x0c, 0x0e, 0x10, 0x12, 0x14, 0x16, 0x18, 0x1a, 0x1c, 0x1e,
 	0x20, 0x22, 0x24, 0x26, 0x28, 0x2a, 0x2c, 0x2e, 0x30, 0x32, 0x34, 0x36, 0x38, 0x3a, 0x3c, 0x3e,
 	0x40, 0x42, 0x44, 0x46, 0x48, 0x4a, 0x4c, 0x4e, 0x50, 0x52, 0x54, 0x56, 0x58, 0x5a, 0x5c, 0x5e,
@@ -85,7 +85,7 @@ unsigned char dot2_table[256] = {
 	0xfb, 0xf9, 0xff, 0xfd, 0xf3, 0xf1, 0xf7, 0xf5, 0xeb, 0xe9, 0xef, 0xed, 0xe3, 0xe1, 0xe7, 0xe5
 };
 
-unsigned char dot3_table[256] = {
+static unsigned char dot3_table[256] = {
 	0x00, 0x03, 0x06, 0x05, 0x0c, 0x0f, 0x0a, 0x09, 0x18, 0x1b, 0x1e, 0x1d, 0x14, 0x17, 0x12, 0x11,
 	0x30, 0x33, 0x36, 0x35, 0x3c, 0x3f, 0x3a, 0x39, 0x28, 0x2b, 0x2e, 0x2d, 0x24, 0x27, 0x22, 0x21,
 	0x60, 0x63, 0x66, 0x65, 0x6c, 0x6f, 0x6a, 0x69, 0x78, 0x7b, 0x7e, 0x7d, 0x74, 0x77, 0x72, 0x71,
@@ -110,7 +110,7 @@ unsigned char dot3_table[256] = {
 
 /*---------------------  Export Functions  --------------------------*/
 
-void xor_128(unsigned char *a, unsigned char *b, unsigned char *out)
+static void xor_128(unsigned char *a, unsigned char *b, unsigned char *out)
 {
 	unsigned long *dwPtrA = (unsigned long *)a;
 	unsigned long *dwPtrB = (unsigned long *)b;
@@ -122,7 +122,7 @@ void xor_128(unsigned char *a, unsigned char *b, unsigned char *out)
 	(*dwPtrOut++) = (*dwPtrA++) ^ (*dwPtrB++);
 }
 
-void xor_32(unsigned char *a, unsigned char *b, unsigned char *out)
+static void xor_32(unsigned char *a, unsigned char *b, unsigned char *out)
 {
 	unsigned long *dwPtrA = (unsigned long *)a;
 	unsigned long *dwPtrB = (unsigned long *)b;
@@ -131,7 +131,7 @@ void xor_32(unsigned char *a, unsigned char *b, unsigned char *out)
 	(*dwPtrOut++) = (*dwPtrA++) ^ (*dwPtrB++);
 }
 
-void AddRoundKey(unsigned char *key, int round)
+static void AddRoundKey(unsigned char *key, int round)
 {
 	unsigned char sbox_key[4];
 	unsigned char rcon_table[10] = { 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1b, 0x36};
@@ -149,7 +149,7 @@ void AddRoundKey(unsigned char *key, int round)
 	xor_32(&key[12], &key[8], &key[12]);
 }
 
-void SubBytes(unsigned char *in, unsigned char *out)
+static void SubBytes(unsigned char *in, unsigned char *out)
 {
 	int i;
 
@@ -158,7 +158,7 @@ void SubBytes(unsigned char *in, unsigned char *out)
 	}
 }
 
-void ShiftRows(unsigned char *in, unsigned char *out)
+static void ShiftRows(unsigned char *in, unsigned char *out)
 {
 	out[0]  = in[0];
 	out[1]  = in[5];
@@ -178,7 +178,7 @@ void ShiftRows(unsigned char *in, unsigned char *out)
 	out[15] = in[11];
 }
 
-void MixColumns(unsigned char *in, unsigned char *out)
+static void MixColumns(unsigned char *in, unsigned char *out)
 {
 	out[0] = dot2_table[in[0]] ^ dot3_table[in[1]] ^ in[2] ^ in[3];
 	out[1] = in[0] ^ dot2_table[in[1]] ^ dot3_table[in[2]] ^ in[3];
@@ -186,7 +186,7 @@ void MixColumns(unsigned char *in, unsigned char *out)
 	out[3] = dot3_table[in[0]] ^ in[1] ^ in[2] ^ dot2_table[in[3]];
 }
 
-void AESv128(unsigned char *key, unsigned char *data, unsigned char *ciphertext)
+static void AESv128(unsigned char *key, unsigned char *data, unsigned char *ciphertext)
 {
 	int  i;
 	int  round;
-- 
cgit 


From 3d47910be4d571743289e69165d6bd9db4b122d2 Mon Sep 17 00:00:00 2001
From: Archana kumari <archanakumari959@gmail.com>
Date: Thu, 17 Oct 2013 18:45:16 +0530
Subject: staging: dgnc: braces {} are not necessary for single statement in
 dgnc_cls.c

Fix checkpatch.pl issues with braces {} are not necessary
for single statement blocks in dgnc_cls.c

Signed-off-by: Archana kumari <archanakumari959@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgnc/dgnc_cls.c | 21 +++++++--------------
 1 file changed, 7 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/dgnc/dgnc_cls.c b/drivers/staging/dgnc/dgnc_cls.c
index 67b927f87fe4..fdc1aabc7fde 100644
--- a/drivers/staging/dgnc/dgnc_cls.c
+++ b/drivers/staging/dgnc/dgnc_cls.c
@@ -417,9 +417,8 @@ static inline void cls_parse_isr(struct dgnc_board *brd, uint port)
 		isr = readb(&ch->ch_cls_uart->isr_fcr);
 
 		/* Bail if no pending interrupt on port */
-		if (isr & UART_IIR_NO_INT)  {
+		if (isr & UART_IIR_NO_INT)
 			break;
-		}
 
 		DPR_INTR(("%s:%d port: %x isr: %x\n", __FILE__, __LINE__, port, isr));
 
@@ -444,9 +443,8 @@ static inline void cls_parse_isr(struct dgnc_board *brd, uint port)
 		}
 
 		/* Received Xoff signal/Special character */
-		if (isr & UART_IIR_XOFF) {
+		if (isr & UART_IIR_XOFF)
 			/* Empty */
-		}
 
 		/* CTS/RTS change of state */
 		if (isr & UART_IIR_CTSRTS) {
@@ -481,24 +479,20 @@ static void cls_param(struct tty_struct *tty)
 	struct channel_t *ch;
         struct un_t   *un;
 
-	if (!tty || tty->magic != TTY_MAGIC) {
+	if (!tty || tty->magic != TTY_MAGIC)
 		return;
-	}
 
 	un = (struct un_t *) tty->driver_data;
-	if (!un || un->magic != DGNC_UNIT_MAGIC) {
+	if (!un || un->magic != DGNC_UNIT_MAGIC)
 		return;
-	}
 
 	ch = un->un_ch;
-	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC) {
+	if (!ch || ch->magic != DGNC_CHANNEL_MAGIC)
 		return;
-	}
 
 	bd = ch->ch_bd;
-	if (!bd || bd->magic != DGNC_BOARD_MAGIC) {
+	if (!bd || bd->magic != DGNC_BOARD_MAGIC)
 		return;
-	}
 
 	DPR_PARAM(("param start: tdev: %x cflags: %x oflags: %x iflags: %x\n",
 		ch->ch_tun.un_dev, ch->ch_c_cflag, ch->ch_c_oflag, ch->ch_c_iflag));
@@ -1305,9 +1299,8 @@ static uint cls_get_uart_bytes_left(struct channel_t *ch)
 
 	/* Determine whether the Transmitter is empty or not */
 	if (!(lsr & UART_LSR_TEMT)) {
-		if (ch->ch_flags & CH_TX_FIFO_EMPTY) {
+		if (ch->ch_flags & CH_TX_FIFO_EMPTY)
 			tasklet_schedule(&ch->ch_bd->helper_tasklet);
-		}
 		left = 1;
 	}
 	else {
-- 
cgit 


From 40e4205ad6525b4aa7327148c4db3f0d009d5989 Mon Sep 17 00:00:00 2001
From: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Date: Thu, 17 Oct 2013 19:52:47 +0530
Subject: Staging: wlan-ng: changing "* dev" to "*dev"

Fix checkpatch error: ERROR: "foo * bar" should be "foo *bar"

Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/wlan-ng/p80211netdev.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/wlan-ng/p80211netdev.h b/drivers/staging/wlan-ng/p80211netdev.h
index 2fecca2302f4..2e0bd24f997c 100644
--- a/drivers/staging/wlan-ng/p80211netdev.h
+++ b/drivers/staging/wlan-ng/p80211netdev.h
@@ -138,7 +138,7 @@ typedef struct p80211_frmrx_t {
 } p80211_frmrx_t;
 
 /* called by /proc/net/wireless */
-struct iw_statistics *p80211wext_get_wireless_stats(netdevice_t * dev);
+struct iw_statistics *p80211wext_get_wireless_stats(netdevice_t *dev);
 /* wireless extensions' ioctls */
 extern struct iw_handler_def p80211wext_handler_def;
 int p80211wext_event_associated(struct wlandevice *wlandev, int assoc);
-- 
cgit 


From 8cedb1be2f1ac8dc88837cefd6ff804d66bcec94 Mon Sep 17 00:00:00 2001
From: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Date: Thu, 17 Oct 2013 21:36:43 +0530
Subject: Staging: sb105x: Removing trailing whitespaces

Fix checkpatch error : ERROR: trailing whitespace

Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/sb105x/sb_mp_register.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/sb105x/sb_mp_register.h b/drivers/staging/sb105x/sb_mp_register.h
index 304e1bcd1e3b..16de497415ee 100644
--- a/drivers/staging/sb105x/sb_mp_register.h
+++ b/drivers/staging/sb105x/sb_mp_register.h
@@ -15,8 +15,8 @@
 #ifndef UART_SB105X_H
 #define UART_SB105X_H
 
-/* 
- * option register 
+/*
+ * option register
  */
 
 /* Device Information Register */
-- 
cgit 


From 5bb7289d7f9d5c7418892c342824196602d20729 Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Wed, 16 Oct 2013 08:34:51 +0200
Subject: usb: gadget: f_mass_storage: style corrections, cleanup &
 simplification

Fix spacing, improve error code returned, remove unused #define,
use strtobool() instead of kstrtou8().

Acked-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/gadget/f_mass_storage.c | 37 ++++++++++++++++++-------------------
 1 file changed, 18 insertions(+), 19 deletions(-)

diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 6b5f45144cdf..8fa8b1f771fb 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -3209,9 +3209,9 @@ static void fsg_lun_attr_release(struct config_item *item)
 }
 
 static struct configfs_item_operations fsg_lun_item_ops = {
-	.release	= fsg_lun_attr_release,
-	.show_attribute = fsg_lun_opts_attr_show,
-	.store_attribute = fsg_lun_opts_attr_store,
+	.release		= fsg_lun_attr_release,
+	.show_attribute		= fsg_lun_opts_attr_show,
+	.store_attribute	= fsg_lun_opts_attr_store,
 };
 
 static ssize_t fsg_lun_opts_file_show(struct fsg_lun_opts *opts, char *page)
@@ -3323,8 +3323,6 @@ static struct config_item_type fsg_lun_type = {
 	.ct_owner	= THIS_MODULE,
 };
 
-#define MAX_NAME_LEN	40
-
 static struct config_group *fsg_lun_make(struct config_group *group,
 					 const char *name)
 {
@@ -3348,7 +3346,8 @@ static struct config_group *fsg_lun_make(struct config_group *group,
 
 	fsg_opts = to_fsg_opts(&group->cg_item);
 	if (num >= FSG_MAX_LUNS)
-		return ERR_PTR(-ENODEV);
+		return ERR_PTR(-ERANGE);
+
 	mutex_lock(&fsg_opts->lock);
 	if (fsg_opts->refcnt || fsg_opts->common->luns[num]) {
 		ret = -EBUSY;
@@ -3364,7 +3363,6 @@ static struct config_group *fsg_lun_make(struct config_group *group,
 	memset(&config, 0, sizeof(config));
 	config.removable = true;
 
-
 	ret = fsg_common_create_lun(fsg_opts->common, &config, num, name,
 				    (const char **)&group->cg_item.ci_name);
 	if (ret) {
@@ -3418,9 +3416,9 @@ static void fsg_attr_release(struct config_item *item)
 }
 
 static struct configfs_item_operations fsg_item_ops = {
-	.release	= fsg_attr_release,
-	.show_attribute = fsg_opts_attr_show,
-	.store_attribute = fsg_opts_attr_store,
+	.release		= fsg_attr_release,
+	.show_attribute		= fsg_opts_attr_show,
+	.store_attribute	= fsg_opts_attr_store,
 };
 
 static ssize_t fsg_opts_stall_show(struct fsg_opts *opts, char *page)
@@ -3438,22 +3436,23 @@ static ssize_t fsg_opts_stall_store(struct fsg_opts *opts, const char *page,
 				    size_t len)
 {
 	int ret;
-	u8 num;
+	bool stall;
 
 	mutex_lock(&opts->lock);
+
 	if (opts->refcnt) {
-		ret = -EBUSY;
-		goto end;
+		mutex_unlock(&opts->lock);
+		return -EBUSY;
 	}
-	ret = kstrtou8(page, 0, &num);
-	if (ret)
-		goto end;
 
-	opts->common->can_stall = num != 0;
-	ret = len;
+	ret = strtobool(page, &stall);
+	if (!ret) {
+		opts->common->can_stall = stall;
+		ret = len;
+	}
 
-end:
 	mutex_unlock(&opts->lock);
+
 	return ret;
 }
 
-- 
cgit 


From 0d2dd7eaed1dac07b266ca2c662ff4a184a3060f Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Wed, 16 Oct 2013 12:50:06 +0200
Subject: usb: musb: core: properly free host / device structs in err path

The patch fixes two issues in the error path cleanup:
- in MUSB_PORT_MODE_DUAL_ROLE mode, if musb_gadget_setup() fails we
  never cleanup the host struct earlier allocated.
- if musb_init_debugfs() or sysfs_create_group() fails, then we never
  free the host part initialization, only device part.

Cc: stable@vger.kernel.org # v3.11
Cc: Daniel Mack <zonque@gmail.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/musb/musb_core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 5b4fa79a277b..6203ad38e913 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1901,6 +1901,8 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 		if (status < 0)
 			goto fail3;
 		status = musb_gadget_setup(musb);
+		if (status)
+			musb_host_cleanup(musb);
 		break;
 	default:
 		dev_err(dev, "unsupported port mode %d\n", musb->port_mode);
@@ -1927,6 +1929,7 @@ fail5:
 
 fail4:
 	musb_gadget_cleanup(musb);
+	musb_host_cleanup(musb);
 
 fail3:
 	if (musb->dma_controller)
-- 
cgit 


From 8d1aad7485e653c2c5fd985b326096f680f7d918 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Wed, 16 Oct 2013 12:50:07 +0200
Subject: usb: musb: core: Call dma_controller_destroy() in error path only
 once.

In commit f3ce4d5 ("usb: musb: core: call dma_controller_destroy() in the err path")
I erroneously assumed that the dma controller is not removed in the
error patch. This was wrong because it happens later via musb_free().
That means the original commit can be reverted because it is wrong or we
do this, so it is more obvious.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/musb/musb_core.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 6203ad38e913..7fd213785d52 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1764,8 +1764,6 @@ static void musb_free(struct musb *musb)
 		free_irq(musb->nIrq, musb);
 	}
 	cancel_work_sync(&musb->irq_work);
-	if (musb->dma_controller)
-		dma_controller_destroy(musb->dma_controller);
 
 	musb_host_free(musb);
 }
@@ -1990,6 +1988,9 @@ static int musb_remove(struct platform_device *pdev)
 	musb_exit_debugfs(musb);
 	musb_shutdown(pdev);
 
+	if (musb->dma_controller)
+		dma_controller_destroy(musb->dma_controller);
+
 	musb_free(musb);
 	device_init_wakeup(dev, 0);
 	return 0;
-- 
cgit 


From 4805414705df77d946b41df4f8b315e2b089eec4 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Wed, 16 Oct 2013 12:50:08 +0200
Subject: usb: musb: cppi41: allow to defer probing if DMA isn't yet available

If everything (musb, cppi41, phy) is built-in then musb will start
without the dma engine printing only

|musb-hdrc musb-hdrc.0.auto: Falied to request rx1.

The reason for this is that the musb device structs are created & probed
before those of the cppi41 device. So the cppi41 device is probed too
late.
As a workaround for this allow the musb_cppi41 part to defer the probe
if everything is fine except for the missing DMA controller. In case of
another error we continue.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/musb/musb_core.c   | 8 +++++++-
 drivers/usb/musb/musb_cppi41.c | 8 ++++++--
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index 7fd213785d52..4db987f07f67 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -1838,8 +1838,13 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 
 	pm_runtime_get_sync(musb->controller);
 
-	if (use_dma && dev->dma_mask)
+	if (use_dma && dev->dma_mask) {
 		musb->dma_controller = dma_controller_create(musb, musb->mregs);
+		if (IS_ERR(musb->dma_controller)) {
+			status = PTR_ERR(musb->dma_controller);
+			goto fail2_5;
+		}
+	}
 
 	/* be sure interrupts are disabled before connecting ISR */
 	musb_platform_disable(musb);
@@ -1932,6 +1937,7 @@ fail4:
 fail3:
 	if (musb->dma_controller)
 		dma_controller_destroy(musb->dma_controller);
+fail2_5:
 	pm_runtime_put_sync(musb->controller);
 
 fail2:
diff --git a/drivers/usb/musb/musb_cppi41.c b/drivers/usb/musb/musb_cppi41.c
index ae959746f77f..ff9d6de2b746 100644
--- a/drivers/usb/musb/musb_cppi41.c
+++ b/drivers/usb/musb/musb_cppi41.c
@@ -484,6 +484,7 @@ static int cppi41_dma_controller_start(struct cppi41_dma_controller *controller)
 		if (ret)
 			goto err;
 
+		ret = -EINVAL;
 		if (port > MUSB_DMA_NUM_CHANNELS || !port)
 			goto err;
 		if (is_tx)
@@ -503,6 +504,7 @@ static int cppi41_dma_controller_start(struct cppi41_dma_controller *controller)
 		dc = dma_request_slave_channel(dev, str);
 		if (!dc) {
 			dev_err(dev, "Falied to request %s.\n", str);
+			ret = -EPROBE_DEFER;
 			goto err;
 		}
 		cppi41_channel->dc = dc;
@@ -510,7 +512,7 @@ static int cppi41_dma_controller_start(struct cppi41_dma_controller *controller)
 	return 0;
 err:
 	cppi41_release_all_dma_chans(controller);
-	return -EINVAL;
+	return ret;
 }
 
 void dma_controller_destroy(struct dma_controller *c)
@@ -526,7 +528,7 @@ struct dma_controller *dma_controller_create(struct musb *musb,
 					void __iomem *base)
 {
 	struct cppi41_dma_controller *controller;
-	int ret;
+	int ret = 0;
 
 	if (!musb->controller->of_node) {
 		dev_err(musb->controller, "Need DT for the DMA engine.\n");
@@ -553,5 +555,7 @@ struct dma_controller *dma_controller_create(struct musb *musb,
 plat_get_fail:
 	kfree(controller);
 kzalloc_fail:
+	if (ret == -EPROBE_DEFER)
+		return ERR_PTR(ret);
 	return NULL;
 }
-- 
cgit 


From 80d7d8a768cda6e8a08ab805a977d08741011da1 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 17 Oct 2013 13:55:06 +0530
Subject: usb: phy: twl6030-usb: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/phy/phy-twl6030-usb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/phy/phy-twl6030-usb.c b/drivers/usb/phy/phy-twl6030-usb.c
index 16dbc9382678..30e8a61552d4 100644
--- a/drivers/usb/phy/phy-twl6030-usb.c
+++ b/drivers/usb/phy/phy-twl6030-usb.c
@@ -33,6 +33,7 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/delay.h>
+#include <linux/of.h>
 
 /* usb register definitions */
 #define USB_VENDOR_ID_LSB		0x00
-- 
cgit 


From cbbc58d4fdfab1a39a6ac1b41fcb17885952157a Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Date: Mon, 7 Oct 2013 22:18:01 +0530
Subject: kvm: powerpc: book3s: Allow the HV and PR selection per virtual
 machine

This moves the kvmppc_ops callbacks to be a per VM entity. This
enables us to select HV and PR mode when creating a VM. We also
allow both kvm-hv and kvm-pr kernel module to be loaded. To
achieve this we move /dev/kvm ownership to kvm.ko module. Depending on
which KVM mode we select during VM creation we take a reference
count on respective module

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
[agraf: fix coding style]
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/kvm_host.h |  1 +
 arch/powerpc/include/asm/kvm_ppc.h  |  7 +--
 arch/powerpc/kvm/44x.c              |  7 ++-
 arch/powerpc/kvm/book3s.c           | 89 +++++++++++++++++++++++++------------
 arch/powerpc/kvm/book3s.h           |  2 +
 arch/powerpc/kvm/book3s_hv.c        | 18 ++++----
 arch/powerpc/kvm/book3s_pr.c        | 25 +++++++----
 arch/powerpc/kvm/book3s_xics.c      |  2 +-
 arch/powerpc/kvm/booke.c            | 22 ++++-----
 arch/powerpc/kvm/e500.c             |  8 +++-
 arch/powerpc/kvm/e500mc.c           |  6 ++-
 arch/powerpc/kvm/emulate.c          | 11 ++---
 arch/powerpc/kvm/powerpc.c          | 76 ++++++++++++++++++++++---------
 include/uapi/linux/kvm.h            |  4 ++
 14 files changed, 187 insertions(+), 91 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_host.h b/arch/powerpc/include/asm/kvm_host.h
index 61ce4dca45d3..237d1d25b448 100644
--- a/arch/powerpc/include/asm/kvm_host.h
+++ b/arch/powerpc/include/asm/kvm_host.h
@@ -270,6 +270,7 @@ struct kvm_arch {
 #ifdef CONFIG_KVM_XICS
 	struct kvmppc_xics *xics;
 #endif
+	struct kvmppc_ops *kvm_ops;
 };
 
 /*
diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h
index 20f461637090..3069cf4dcc88 100644
--- a/arch/powerpc/include/asm/kvm_ppc.h
+++ b/arch/powerpc/include/asm/kvm_ppc.h
@@ -182,6 +182,7 @@ union kvmppc_one_reg {
 };
 
 struct kvmppc_ops {
+	struct module *owner;
 	bool is_hv_enabled;
 	int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
 	int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
@@ -217,7 +218,6 @@ struct kvmppc_ops {
 			      unsigned long npages);
 	int (*init_vm)(struct kvm *kvm);
 	void (*destroy_vm)(struct kvm *kvm);
-	int (*check_processor_compat)(void);
 	int (*get_smmu_info)(struct kvm *kvm, struct kvm_ppc_smmu_info *info);
 	int (*emulate_op)(struct kvm_run *run, struct kvm_vcpu *vcpu,
 			  unsigned int inst, int *advance);
@@ -229,7 +229,8 @@ struct kvmppc_ops {
 
 };
 
-extern struct kvmppc_ops *kvmppc_ops;
+extern struct kvmppc_ops *kvmppc_hv_ops;
+extern struct kvmppc_ops *kvmppc_pr_ops;
 
 /*
  * Cuts out inst bits with ordering according to spec.
@@ -326,7 +327,7 @@ static inline void kvmppc_set_host_ipi(int cpu, u8 host_ipi)
 
 static inline void kvmppc_fast_vcpu_kick(struct kvm_vcpu *vcpu)
 {
-	kvmppc_ops->fast_vcpu_kick(vcpu);
+	vcpu->kvm->arch.kvm_ops->fast_vcpu_kick(vcpu);
 }
 
 #else
diff --git a/arch/powerpc/kvm/44x.c b/arch/powerpc/kvm/44x.c
index a765bcd74fbb..93221e87b911 100644
--- a/arch/powerpc/kvm/44x.c
+++ b/arch/powerpc/kvm/44x.c
@@ -213,16 +213,19 @@ static int __init kvmppc_44x_init(void)
 	if (r)
 		goto err_out;
 
-	r = kvm_init(&kvm_ops_44x, sizeof(struct kvmppc_vcpu_44x),
-		     0, THIS_MODULE);
+	r = kvm_init(NULL, sizeof(struct kvmppc_vcpu_44x), 0, THIS_MODULE);
 	if (r)
 		goto err_out;
+	kvm_ops_44x.owner = THIS_MODULE;
+	kvmppc_pr_ops = &kvm_ops_44x;
+
 err_out:
 	return r;
 }
 
 static void __exit kvmppc_44x_exit(void)
 {
+	kvmppc_pr_ops = NULL;
 	kvmppc_booke_exit();
 }
 
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index 130fe1d75bac..ad8f6ed3f136 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -34,6 +34,7 @@
 #include <linux/vmalloc.h>
 #include <linux/highmem.h>
 
+#include "book3s.h"
 #include "trace.h"
 
 #define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU
@@ -71,7 +72,7 @@ void kvmppc_core_load_guest_debugstate(struct kvm_vcpu *vcpu)
 
 static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
 {
-	if (!kvmppc_ops->is_hv_enabled)
+	if (!vcpu->kvm->arch.kvm_ops->is_hv_enabled)
 		return to_book3s(vcpu)->hior;
 	return 0;
 }
@@ -79,7 +80,7 @@ static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
 static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
 			unsigned long pending_now, unsigned long old_pending)
 {
-	if (kvmppc_ops->is_hv_enabled)
+	if (vcpu->kvm->arch.kvm_ops->is_hv_enabled)
 		return;
 	if (pending_now)
 		vcpu->arch.shared->int_pending = 1;
@@ -93,7 +94,7 @@ static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
 	ulong crit_r1;
 	bool crit;
 
-	if (kvmppc_ops->is_hv_enabled)
+	if (vcpu->kvm->arch.kvm_ops->is_hv_enabled)
 		return false;
 
 	crit_raw = vcpu->arch.shared->critical;
@@ -477,13 +478,13 @@ void kvmppc_subarch_vcpu_uninit(struct kvm_vcpu *vcpu)
 int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
 				  struct kvm_sregs *sregs)
 {
-	return kvmppc_ops->get_sregs(vcpu, sregs);
+	return vcpu->kvm->arch.kvm_ops->get_sregs(vcpu, sregs);
 }
 
 int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
 				  struct kvm_sregs *sregs)
 {
-	return kvmppc_ops->set_sregs(vcpu, sregs);
+	return vcpu->kvm->arch.kvm_ops->set_sregs(vcpu, sregs);
 }
 
 int kvm_arch_vcpu_ioctl_get_regs(struct kvm_vcpu *vcpu, struct kvm_regs *regs)
@@ -562,7 +563,7 @@ int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 	if (size > sizeof(val))
 		return -EINVAL;
 
-	r = kvmppc_ops->get_one_reg(vcpu, reg->id, &val);
+	r = vcpu->kvm->arch.kvm_ops->get_one_reg(vcpu, reg->id, &val);
 	if (r == -EINVAL) {
 		r = 0;
 		switch (reg->id) {
@@ -641,7 +642,7 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 	if (copy_from_user(&val, (char __user *)(unsigned long)reg->addr, size))
 		return -EFAULT;
 
-	r = kvmppc_ops->set_one_reg(vcpu, reg->id, &val);
+	r = vcpu->kvm->arch.kvm_ops->set_one_reg(vcpu, reg->id, &val);
 	if (r == -EINVAL) {
 		r = 0;
 		switch (reg->id) {
@@ -702,23 +703,23 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 
 void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 {
-	kvmppc_ops->vcpu_load(vcpu, cpu);
+	vcpu->kvm->arch.kvm_ops->vcpu_load(vcpu, cpu);
 }
 
 void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
 {
-	kvmppc_ops->vcpu_put(vcpu);
+	vcpu->kvm->arch.kvm_ops->vcpu_put(vcpu);
 }
 
 void kvmppc_set_msr(struct kvm_vcpu *vcpu, u64 msr)
 {
-	kvmppc_ops->set_msr(vcpu, msr);
+	vcpu->kvm->arch.kvm_ops->set_msr(vcpu, msr);
 }
 EXPORT_SYMBOL_GPL(kvmppc_set_msr);
 
 int kvmppc_vcpu_run(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu)
 {
-	return kvmppc_ops->vcpu_run(kvm_run, vcpu);
+	return vcpu->kvm->arch.kvm_ops->vcpu_run(kvm_run, vcpu);
 }
 
 int kvm_arch_vcpu_ioctl_translate(struct kvm_vcpu *vcpu,
@@ -743,84 +744,84 @@ void kvmppc_decrementer_func(unsigned long data)
 
 struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
 {
-	return kvmppc_ops->vcpu_create(kvm, id);
+	return kvm->arch.kvm_ops->vcpu_create(kvm, id);
 }
 
 void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
 {
-	kvmppc_ops->vcpu_free(vcpu);
+	vcpu->kvm->arch.kvm_ops->vcpu_free(vcpu);
 }
 
 int kvmppc_core_check_requests(struct kvm_vcpu *vcpu)
 {
-	return kvmppc_ops->check_requests(vcpu);
+	return vcpu->kvm->arch.kvm_ops->check_requests(vcpu);
 }
 
 int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log)
 {
-	return kvmppc_ops->get_dirty_log(kvm, log);
+	return kvm->arch.kvm_ops->get_dirty_log(kvm, log);
 }
 
 void kvmppc_core_free_memslot(struct kvm *kvm, struct kvm_memory_slot *free,
 			      struct kvm_memory_slot *dont)
 {
-	kvmppc_ops->free_memslot(free, dont);
+	kvm->arch.kvm_ops->free_memslot(free, dont);
 }
 
 int kvmppc_core_create_memslot(struct kvm *kvm, struct kvm_memory_slot *slot,
 			       unsigned long npages)
 {
-	return kvmppc_ops->create_memslot(slot, npages);
+	return kvm->arch.kvm_ops->create_memslot(slot, npages);
 }
 
 void kvmppc_core_flush_memslot(struct kvm *kvm, struct kvm_memory_slot *memslot)
 {
-	kvmppc_ops->flush_memslot(kvm, memslot);
+	kvm->arch.kvm_ops->flush_memslot(kvm, memslot);
 }
 
 int kvmppc_core_prepare_memory_region(struct kvm *kvm,
 				struct kvm_memory_slot *memslot,
 				struct kvm_userspace_memory_region *mem)
 {
-	return kvmppc_ops->prepare_memory_region(kvm, memslot, mem);
+	return kvm->arch.kvm_ops->prepare_memory_region(kvm, memslot, mem);
 }
 
 void kvmppc_core_commit_memory_region(struct kvm *kvm,
 				struct kvm_userspace_memory_region *mem,
 				const struct kvm_memory_slot *old)
 {
-	kvmppc_ops->commit_memory_region(kvm, mem, old);
+	kvm->arch.kvm_ops->commit_memory_region(kvm, mem, old);
 }
 
 int kvm_unmap_hva(struct kvm *kvm, unsigned long hva)
 {
-	return kvmppc_ops->unmap_hva(kvm, hva);
+	return kvm->arch.kvm_ops->unmap_hva(kvm, hva);
 }
 EXPORT_SYMBOL_GPL(kvm_unmap_hva);
 
 int kvm_unmap_hva_range(struct kvm *kvm, unsigned long start, unsigned long end)
 {
-	return kvmppc_ops->unmap_hva_range(kvm, start, end);
+	return kvm->arch.kvm_ops->unmap_hva_range(kvm, start, end);
 }
 
 int kvm_age_hva(struct kvm *kvm, unsigned long hva)
 {
-	return kvmppc_ops->age_hva(kvm, hva);
+	return kvm->arch.kvm_ops->age_hva(kvm, hva);
 }
 
 int kvm_test_age_hva(struct kvm *kvm, unsigned long hva)
 {
-	return kvmppc_ops->test_age_hva(kvm, hva);
+	return kvm->arch.kvm_ops->test_age_hva(kvm, hva);
 }
 
 void kvm_set_spte_hva(struct kvm *kvm, unsigned long hva, pte_t pte)
 {
-	kvmppc_ops->set_spte_hva(kvm, hva, pte);
+	kvm->arch.kvm_ops->set_spte_hva(kvm, hva, pte);
 }
 
 void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
 {
-	kvmppc_ops->mmu_destroy(vcpu);
+	vcpu->kvm->arch.kvm_ops->mmu_destroy(vcpu);
 }
 
 int kvmppc_core_init_vm(struct kvm *kvm)
@@ -831,12 +832,12 @@ int kvmppc_core_init_vm(struct kvm *kvm)
 	INIT_LIST_HEAD(&kvm->arch.rtas_tokens);
 #endif
 
-	return kvmppc_ops->init_vm(kvm);
+	return kvm->arch.kvm_ops->init_vm(kvm);
 }
 
 void kvmppc_core_destroy_vm(struct kvm *kvm)
 {
-	kvmppc_ops->destroy_vm(kvm);
+	kvm->arch.kvm_ops->destroy_vm(kvm);
 
 #ifdef CONFIG_PPC64
 	kvmppc_rtas_tokens_free(kvm);
@@ -846,5 +847,35 @@ void kvmppc_core_destroy_vm(struct kvm *kvm)
 
 int kvmppc_core_check_processor_compat(void)
 {
-	return kvmppc_ops->check_processor_compat();
+	/*
+	 * We always return 0 for book3s. We check
+	 * for compatability while loading the HV
+	 * or PR module
+	 */
+	return 0;
+}
+
+static int kvmppc_book3s_init(void)
+{
+	int r;
+
+	r = kvm_init(NULL, sizeof(struct kvm_vcpu), 0, THIS_MODULE);
+	if (r)
+		return r;
+#ifdef CONFIG_KVM_BOOK3S_32
+	r = kvmppc_book3s_init_pr();
+#endif
+	return r;
+
+}
+
+static void kvmppc_book3s_exit(void)
+{
+#ifdef CONFIG_KVM_BOOK3S_32
+	kvmppc_book3s_exit_pr();
+#endif
+	kvm_exit();
 }
+
+module_init(kvmppc_book3s_init);
+module_exit(kvmppc_book3s_exit);
diff --git a/arch/powerpc/kvm/book3s.h b/arch/powerpc/kvm/book3s.h
index 9e5b3a341943..4bf956cf94d6 100644
--- a/arch/powerpc/kvm/book3s.h
+++ b/arch/powerpc/kvm/book3s.h
@@ -28,5 +28,7 @@ extern int kvmppc_core_emulate_mtspr_pr(struct kvm_vcpu *vcpu,
 					int sprn, ulong spr_val);
 extern int kvmppc_core_emulate_mfspr_pr(struct kvm_vcpu *vcpu,
 					int sprn, ulong *spr_val);
+extern int kvmppc_book3s_init_pr(void);
+extern void kvmppc_book3s_exit_pr(void);
 
 #endif
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 9e954a81c078..8743048881b7 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -2159,7 +2159,7 @@ static long kvm_arch_vm_ioctl_hv(struct file *filp,
 	return r;
 }
 
-static struct kvmppc_ops kvmppc_hv_ops = {
+static struct kvmppc_ops kvm_ops_hv = {
 	.is_hv_enabled = true,
 	.get_sregs = kvm_arch_vcpu_ioctl_get_sregs_hv,
 	.set_sregs = kvm_arch_vcpu_ioctl_set_sregs_hv,
@@ -2186,7 +2186,6 @@ static struct kvmppc_ops kvmppc_hv_ops = {
 	.create_memslot = kvmppc_core_create_memslot_hv,
 	.init_vm =  kvmppc_core_init_vm_hv,
 	.destroy_vm = kvmppc_core_destroy_vm_hv,
-	.check_processor_compat = kvmppc_core_check_processor_compat_hv,
 	.get_smmu_info = kvm_vm_ioctl_get_smmu_info_hv,
 	.emulate_op = kvmppc_core_emulate_op_hv,
 	.emulate_mtspr = kvmppc_core_emulate_mtspr_hv,
@@ -2198,20 +2197,23 @@ static struct kvmppc_ops kvmppc_hv_ops = {
 static int kvmppc_book3s_init_hv(void)
 {
 	int r;
-
-	r = kvm_init(&kvmppc_hv_ops, sizeof(struct kvm_vcpu), 0, THIS_MODULE);
-
-	if (r)
+	/*
+	 * FIXME!! Do we need to check on all cpus ?
+	 */
+	r = kvmppc_core_check_processor_compat_hv();
+	if (r < 0)
 		return r;
 
-	r = kvmppc_mmu_hv_init();
+	kvm_ops_hv.owner = THIS_MODULE;
+	kvmppc_hv_ops = &kvm_ops_hv;
 
+	r = kvmppc_mmu_hv_init();
 	return r;
 }
 
 static void kvmppc_book3s_exit_hv(void)
 {
-	kvm_exit();
+	kvmppc_hv_ops = NULL;
 }
 
 module_init(kvmppc_book3s_init_hv);
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 7f583a482161..fbd985f0cb02 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -1525,7 +1525,7 @@ static long kvm_arch_vm_ioctl_pr(struct file *filp,
 	return -ENOTTY;
 }
 
-static struct kvmppc_ops kvmppc_pr_ops = {
+static struct kvmppc_ops kvm_ops_pr = {
 	.is_hv_enabled = false,
 	.get_sregs = kvm_arch_vcpu_ioctl_get_sregs_pr,
 	.set_sregs = kvm_arch_vcpu_ioctl_set_sregs_pr,
@@ -1552,7 +1552,6 @@ static struct kvmppc_ops kvmppc_pr_ops = {
 	.create_memslot = kvmppc_core_create_memslot_pr,
 	.init_vm = kvmppc_core_init_vm_pr,
 	.destroy_vm = kvmppc_core_destroy_vm_pr,
-	.check_processor_compat = kvmppc_core_check_processor_compat_pr,
 	.get_smmu_info = kvm_vm_ioctl_get_smmu_info_pr,
 	.emulate_op = kvmppc_core_emulate_op_pr,
 	.emulate_mtspr = kvmppc_core_emulate_mtspr_pr,
@@ -1561,27 +1560,35 @@ static struct kvmppc_ops kvmppc_pr_ops = {
 	.arch_vm_ioctl  = kvm_arch_vm_ioctl_pr,
 };
 
-static int kvmppc_book3s_init_pr(void)
+
+int kvmppc_book3s_init_pr(void)
 {
 	int r;
 
-	r = kvm_init(&kvmppc_pr_ops, sizeof(struct kvm_vcpu), 0, THIS_MODULE);
-
-	if (r)
+	r = kvmppc_core_check_processor_compat_pr();
+	if (r < 0)
 		return r;
 
-	r = kvmppc_mmu_hpte_sysinit();
+	kvm_ops_pr.owner = THIS_MODULE;
+	kvmppc_pr_ops = &kvm_ops_pr;
 
+	r = kvmppc_mmu_hpte_sysinit();
 	return r;
 }
 
-static void kvmppc_book3s_exit_pr(void)
+void kvmppc_book3s_exit_pr(void)
 {
+	kvmppc_pr_ops = NULL;
 	kvmppc_mmu_hpte_sysexit();
-	kvm_exit();
 }
 
+/*
+ * We only support separate modules for book3s 64
+ */
+#ifdef CONFIG_PPC_BOOK3S_64
+
 module_init(kvmppc_book3s_init_pr);
 module_exit(kvmppc_book3s_exit_pr);
 
 MODULE_LICENSE("GPL");
+#endif
diff --git a/arch/powerpc/kvm/book3s_xics.c b/arch/powerpc/kvm/book3s_xics.c
index c3c832b27ee5..f7a5108a3483 100644
--- a/arch/powerpc/kvm/book3s_xics.c
+++ b/arch/powerpc/kvm/book3s_xics.c
@@ -818,7 +818,7 @@ int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 req)
 	}
 
 	/* Check for real mode returning too hard */
-	if (xics->real_mode && kvmppc_ops->is_hv_enabled)
+	if (xics->real_mode && vcpu->kvm->arch.kvm_ops->is_hv_enabled)
 		return kvmppc_xics_rm_complete(vcpu, req);
 
 	switch (req) {
diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index cb2d986a3382..15d0149511eb 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -1472,7 +1472,7 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
 
 	get_sregs_base(vcpu, sregs);
 	get_sregs_arch206(vcpu, sregs);
-	return kvmppc_ops->get_sregs(vcpu, sregs);
+	return vcpu->kvm->arch.kvm_ops->get_sregs(vcpu, sregs);
 }
 
 int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
@@ -1491,7 +1491,7 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
 	if (ret < 0)
 		return ret;
 
-	return kvmppc_ops->set_sregs(vcpu, sregs);
+	return vcpu->kvm->arch.kvm_ops->set_sregs(vcpu, sregs);
 }
 
 int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
@@ -1548,7 +1548,7 @@ int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 		val = get_reg_val(reg->id, vcpu->arch.vrsave);
 		break;
 	default:
-		r = kvmppc_ops->get_one_reg(vcpu, reg->id, &val);
+		r = vcpu->kvm->arch.kvm_ops->get_one_reg(vcpu, reg->id, &val);
 		break;
 	}
 
@@ -1631,7 +1631,7 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 		vcpu->arch.vrsave = set_reg_val(reg->id, val);
 		break;
 	default:
-		r = kvmppc_ops->set_one_reg(vcpu, reg->id, &val);
+		r = vcpu->kvm->arch.kvm_ops->set_one_reg(vcpu, reg->id, &val);
 		break;
 	}
 
@@ -1911,37 +1911,37 @@ void kvmppc_booke_vcpu_put(struct kvm_vcpu *vcpu)
 
 void kvmppc_mmu_destroy(struct kvm_vcpu *vcpu)
 {
-	kvmppc_ops->mmu_destroy(vcpu);
+	vcpu->kvm->arch.kvm_ops->mmu_destroy(vcpu);
 }
 
 int kvmppc_core_init_vm(struct kvm *kvm)
 {
-	return kvmppc_ops->init_vm(kvm);
+	return kvm->arch.kvm_ops->init_vm(kvm);
 }
 
 struct kvm_vcpu *kvmppc_core_vcpu_create(struct kvm *kvm, unsigned int id)
 {
-	return kvmppc_ops->vcpu_create(kvm, id);
+	return kvm->arch.kvm_ops->vcpu_create(kvm, id);
 }
 
 void kvmppc_core_vcpu_free(struct kvm_vcpu *vcpu)
 {
-	kvmppc_ops->vcpu_free(vcpu);
+	vcpu->kvm->arch.kvm_ops->vcpu_free(vcpu);
 }
 
 void kvmppc_core_destroy_vm(struct kvm *kvm)
 {
-	kvmppc_ops->destroy_vm(kvm);
+	kvm->arch.kvm_ops->destroy_vm(kvm);
 }
 
 void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 {
-	kvmppc_ops->vcpu_load(vcpu, cpu);
+	vcpu->kvm->arch.kvm_ops->vcpu_load(vcpu, cpu);
 }
 
 void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu)
 {
-	kvmppc_ops->vcpu_put(vcpu);
+	vcpu->kvm->arch.kvm_ops->vcpu_put(vcpu);
 }
 
 int __init kvmppc_booke_init(void)
diff --git a/arch/powerpc/kvm/e500.c b/arch/powerpc/kvm/e500.c
index d225d5ebddcc..497b142f651c 100644
--- a/arch/powerpc/kvm/e500.c
+++ b/arch/powerpc/kvm/e500.c
@@ -555,13 +555,19 @@ static int __init kvmppc_e500_init(void)
 	flush_icache_range(kvmppc_booke_handlers, kvmppc_booke_handlers +
 			   ivor[max_ivor] + handler_len);
 
-	r = kvm_init(&kvm_ops_e500, sizeof(struct kvmppc_vcpu_e500), 0, THIS_MODULE);
+	r = kvm_init(NULL, sizeof(struct kvmppc_vcpu_e500), 0, THIS_MODULE);
+	if (r)
+		goto err_out;
+	kvm_ops_e500.owner = THIS_MODULE;
+	kvmppc_pr_ops = &kvm_ops_e500;
+
 err_out:
 	return r;
 }
 
 static void __exit kvmppc_e500_exit(void)
 {
+	kvmppc_pr_ops = NULL;
 	kvmppc_booke_exit();
 }
 
diff --git a/arch/powerpc/kvm/e500mc.c b/arch/powerpc/kvm/e500mc.c
index db6a383401c7..4132cd2fc171 100644
--- a/arch/powerpc/kvm/e500mc.c
+++ b/arch/powerpc/kvm/e500mc.c
@@ -373,15 +373,19 @@ static int __init kvmppc_e500mc_init(void)
 	kvmppc_init_lpid(64);
 	kvmppc_claim_lpid(0); /* host */
 
-	r = kvm_init(&kvm_ops_e500mc, sizeof(struct kvmppc_vcpu_e500), 0, THIS_MODULE);
+	r = kvm_init(NULL, sizeof(struct kvmppc_vcpu_e500), 0, THIS_MODULE);
 	if (r)
 		goto err_out;
+	kvm_ops_e500mc.owner = THIS_MODULE;
+	kvmppc_pr_ops = &kvm_ops_e500mc;
+
 err_out:
 	return r;
 }
 
 static void __exit kvmppc_e500mc_exit(void)
 {
+	kvmppc_pr_ops = NULL;
 	kvmppc_booke_exit();
 }
 
diff --git a/arch/powerpc/kvm/emulate.c b/arch/powerpc/kvm/emulate.c
index de9a340d22ed..2f9a0873b44f 100644
--- a/arch/powerpc/kvm/emulate.c
+++ b/arch/powerpc/kvm/emulate.c
@@ -130,8 +130,8 @@ static int kvmppc_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
 	case SPRN_PIR: break;
 
 	default:
-		emulated = kvmppc_ops->emulate_mtspr(vcpu, sprn,
-						     spr_val);
+		emulated = vcpu->kvm->arch.kvm_ops->emulate_mtspr(vcpu, sprn,
+								  spr_val);
 		if (emulated == EMULATE_FAIL)
 			printk(KERN_INFO "mtspr: unknown spr "
 				"0x%x\n", sprn);
@@ -191,8 +191,8 @@ static int kvmppc_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
 		spr_val = kvmppc_get_dec(vcpu, get_tb());
 		break;
 	default:
-		emulated = kvmppc_ops->emulate_mfspr(vcpu, sprn,
-						     &spr_val);
+		emulated = vcpu->kvm->arch.kvm_ops->emulate_mfspr(vcpu, sprn,
+								  &spr_val);
 		if (unlikely(emulated == EMULATE_FAIL)) {
 			printk(KERN_INFO "mfspr: unknown spr "
 				"0x%x\n", sprn);
@@ -464,7 +464,8 @@ int kvmppc_emulate_instruction(struct kvm_run *run, struct kvm_vcpu *vcpu)
 	}
 
 	if (emulated == EMULATE_FAIL) {
-		emulated = kvmppc_ops->emulate_op(run, vcpu, inst, &advance);
+		emulated = vcpu->kvm->arch.kvm_ops->emulate_op(run, vcpu, inst,
+							       &advance);
 		if (emulated == EMULATE_AGAIN) {
 			advance = 0;
 		} else if (emulated == EMULATE_FAIL) {
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index b103d747934a..0320c1721caa 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -26,6 +26,7 @@
 #include <linux/fs.h>
 #include <linux/slab.h>
 #include <linux/file.h>
+#include <linux/module.h>
 #include <asm/cputable.h>
 #include <asm/uaccess.h>
 #include <asm/kvm_ppc.h>
@@ -39,7 +40,11 @@
 #define CREATE_TRACE_POINTS
 #include "trace.h"
 
-struct kvmppc_ops *kvmppc_ops;
+struct kvmppc_ops *kvmppc_hv_ops;
+EXPORT_SYMBOL_GPL(kvmppc_hv_ops);
+struct kvmppc_ops *kvmppc_pr_ops;
+EXPORT_SYMBOL_GPL(kvmppc_pr_ops);
+
 
 int kvm_arch_vcpu_runnable(struct kvm_vcpu *v)
 {
@@ -195,7 +200,7 @@ int kvmppc_sanity_check(struct kvm_vcpu *vcpu)
 		goto out;
 
 	/* HV KVM can only do PAPR mode for now */
-	if (!vcpu->arch.papr_enabled && kvmppc_ops->is_hv_enabled)
+	if (!vcpu->arch.papr_enabled && vcpu->kvm->arch.kvm_ops->is_hv_enabled)
 		goto out;
 
 #ifdef CONFIG_KVM_BOOKE_HV
@@ -271,10 +276,35 @@ void kvm_arch_check_processor_compat(void *rtn)
 
 int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 {
-	if (type)
-		return -EINVAL;
-
+	struct kvmppc_ops *kvm_ops = NULL;
+	/*
+	 * if we have both HV and PR enabled, default is HV
+	 */
+	if (type == 0) {
+		if (kvmppc_hv_ops)
+			kvm_ops = kvmppc_hv_ops;
+		else
+			kvm_ops = kvmppc_pr_ops;
+		if (!kvm_ops)
+			goto err_out;
+	} else	if (type == KVM_VM_PPC_HV) {
+		if (!kvmppc_hv_ops)
+			goto err_out;
+		kvm_ops = kvmppc_hv_ops;
+	} else if (type == KVM_VM_PPC_PR) {
+		if (!kvmppc_pr_ops)
+			goto err_out;
+		kvm_ops = kvmppc_pr_ops;
+	} else
+		goto err_out;
+
+	if (kvm_ops->owner && !try_module_get(kvm_ops->owner))
+		return -ENOENT;
+
+	kvm->arch.kvm_ops = kvm_ops;
 	return kvmppc_core_init_vm(kvm);
+err_out:
+	return -EINVAL;
 }
 
 void kvm_arch_destroy_vm(struct kvm *kvm)
@@ -294,6 +324,9 @@ void kvm_arch_destroy_vm(struct kvm *kvm)
 	kvmppc_core_destroy_vm(kvm);
 
 	mutex_unlock(&kvm->lock);
+
+	/* drop the module reference */
+	module_put(kvm->arch.kvm_ops->owner);
 }
 
 void kvm_arch_sync_events(struct kvm *kvm)
@@ -303,6 +336,10 @@ void kvm_arch_sync_events(struct kvm *kvm)
 int kvm_dev_ioctl_check_extension(long ext)
 {
 	int r;
+	/* FIXME!!
+	 * Should some of this be vm ioctl ? is it possible now ?
+	 */
+	int hv_enabled = kvmppc_hv_ops ? 1 : 0;
 
 	switch (ext) {
 #ifdef CONFIG_BOOKE
@@ -329,7 +366,7 @@ int kvm_dev_ioctl_check_extension(long ext)
 	case KVM_CAP_SW_TLB:
 #endif
 		/* We support this only for PR */
-		r = !kvmppc_ops->is_hv_enabled;
+		r = !hv_enabled;
 		break;
 #ifdef CONFIG_KVM_MMIO
 	case KVM_CAP_COALESCED_MMIO:
@@ -354,13 +391,13 @@ int kvm_dev_ioctl_check_extension(long ext)
 #endif /* CONFIG_PPC_BOOK3S_64 */
 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 	case KVM_CAP_PPC_SMT:
-		if (kvmppc_ops->is_hv_enabled)
+		if (hv_enabled)
 			r = threads_per_core;
 		else
 			r = 0;
 		break;
 	case KVM_CAP_PPC_RMA:
-		r = kvmppc_ops->is_hv_enabled;
+		r = hv_enabled;
 		/* PPC970 requires an RMA */
 		if (r && cpu_has_feature(CPU_FTR_ARCH_201))
 			r = 2;
@@ -368,7 +405,7 @@ int kvm_dev_ioctl_check_extension(long ext)
 #endif
 	case KVM_CAP_SYNC_MMU:
 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
-		if (kvmppc_ops->is_hv_enabled)
+		if (hv_enabled)
 			r = cpu_has_feature(CPU_FTR_ARCH_206) ? 1 : 0;
 		else
 			r = 0;
@@ -380,7 +417,7 @@ int kvm_dev_ioctl_check_extension(long ext)
 		break;
 #ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
 	case KVM_CAP_PPC_HTAB_FD:
-		r = kvmppc_ops->is_hv_enabled;
+		r = hv_enabled;
 		break;
 #endif
 	case KVM_CAP_NR_VCPUS:
@@ -390,7 +427,7 @@ int kvm_dev_ioctl_check_extension(long ext)
 		 * will have secondary threads "offline"), and for other KVM
 		 * implementations just count online CPUs.
 		 */
-		if (kvmppc_ops->is_hv_enabled)
+		if (hv_enabled)
 			r = num_present_cpus();
 		else
 			r = num_online_cpus();
@@ -1039,9 +1076,10 @@ long kvm_arch_vm_ioctl(struct file *filp,
 	}
 	case KVM_PPC_GET_SMMU_INFO: {
 		struct kvm_ppc_smmu_info info;
+		struct kvm *kvm = filp->private_data;
 
 		memset(&info, 0, sizeof(info));
-		r = kvmppc_ops->get_smmu_info(kvm, &info);
+		r = kvm->arch.kvm_ops->get_smmu_info(kvm, &info);
 		if (r >= 0 && copy_to_user(argp, &info, sizeof(info)))
 			r = -EFAULT;
 		break;
@@ -1052,9 +1090,10 @@ long kvm_arch_vm_ioctl(struct file *filp,
 		r = kvm_vm_ioctl_rtas_define_token(kvm, argp);
 		break;
 	}
-	default:
-		r = kvmppc_ops->arch_vm_ioctl(filp, ioctl, arg);
-
+	default: {
+		struct kvm *kvm = filp->private_data;
+		r = kvm->arch.kvm_ops->arch_vm_ioctl(filp, ioctl, arg);
+	}
 #else /* CONFIG_PPC_BOOK3S_64 */
 	default:
 		r = -ENOTTY;
@@ -1104,15 +1143,10 @@ EXPORT_SYMBOL_GPL(kvmppc_init_lpid);
 
 int kvm_arch_init(void *opaque)
 {
-	if (kvmppc_ops) {
-		printk(KERN_ERR "kvm: already loaded the other module\n");
-		return -EEXIST;
-	}
-	kvmppc_ops = (struct kvmppc_ops *)opaque;
 	return 0;
 }
 
 void kvm_arch_exit(void)
 {
-	kvmppc_ops = NULL;
+
 }
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index e32e776f20c0..5b5341f78368 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -518,6 +518,10 @@ struct kvm_ppc_smmu_info {
 /* machine type bits, to be used as argument to KVM_CREATE_VM */
 #define KVM_VM_S390_UCONTROL	1
 
+/* on ppc, 0 indicate default, 1 should force HV and 2 PR */
+#define KVM_VM_PPC_HV 1
+#define KVM_VM_PPC_PR 2
+
 #define KVM_S390_SIE_PAGE_OFFSET 1
 
 /*
-- 
cgit 


From a78b55d1c0218b6d91d504941d20e36435c276f5 Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Date: Mon, 7 Oct 2013 22:18:02 +0530
Subject: kvm: powerpc: book3s: drop is_hv_enabled

drop is_hv_enabled, because that should not be a callback property

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
---
 arch/powerpc/include/asm/kvm_ppc.h | 6 +++++-
 arch/powerpc/kvm/book3s.c          | 6 +++---
 arch/powerpc/kvm/book3s_hv.c       | 1 -
 arch/powerpc/kvm/book3s_pr.c       | 1 -
 arch/powerpc/kvm/book3s_xics.c     | 2 +-
 arch/powerpc/kvm/powerpc.c         | 2 +-
 6 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h
index 3069cf4dcc88..c8317fbf92c4 100644
--- a/arch/powerpc/include/asm/kvm_ppc.h
+++ b/arch/powerpc/include/asm/kvm_ppc.h
@@ -183,7 +183,6 @@ union kvmppc_one_reg {
 
 struct kvmppc_ops {
 	struct module *owner;
-	bool is_hv_enabled;
 	int (*get_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
 	int (*set_sregs)(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs);
 	int (*get_one_reg)(struct kvm_vcpu *vcpu, u64 id,
@@ -232,6 +231,11 @@ struct kvmppc_ops {
 extern struct kvmppc_ops *kvmppc_hv_ops;
 extern struct kvmppc_ops *kvmppc_pr_ops;
 
+static inline bool is_kvmppc_hv_enabled(struct kvm *kvm)
+{
+	return kvm->arch.kvm_ops == kvmppc_hv_ops;
+}
+
 /*
  * Cuts out inst bits with ordering according to spec.
  * That means the leftmost bit is zero. All given bits are included.
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index ad8f6ed3f136..8912608b7e1b 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -72,7 +72,7 @@ void kvmppc_core_load_guest_debugstate(struct kvm_vcpu *vcpu)
 
 static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
 {
-	if (!vcpu->kvm->arch.kvm_ops->is_hv_enabled)
+	if (!is_kvmppc_hv_enabled(vcpu->kvm))
 		return to_book3s(vcpu)->hior;
 	return 0;
 }
@@ -80,7 +80,7 @@ static inline unsigned long kvmppc_interrupt_offset(struct kvm_vcpu *vcpu)
 static inline void kvmppc_update_int_pending(struct kvm_vcpu *vcpu,
 			unsigned long pending_now, unsigned long old_pending)
 {
-	if (vcpu->kvm->arch.kvm_ops->is_hv_enabled)
+	if (is_kvmppc_hv_enabled(vcpu->kvm))
 		return;
 	if (pending_now)
 		vcpu->arch.shared->int_pending = 1;
@@ -94,7 +94,7 @@ static inline bool kvmppc_critical_section(struct kvm_vcpu *vcpu)
 	ulong crit_r1;
 	bool crit;
 
-	if (vcpu->kvm->arch.kvm_ops->is_hv_enabled)
+	if (is_kvmppc_hv_enabled(vcpu->kvm))
 		return false;
 
 	crit_raw = vcpu->arch.shared->critical;
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 8743048881b7..072287f1c3bc 100644
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -2160,7 +2160,6 @@ static long kvm_arch_vm_ioctl_hv(struct file *filp,
 }
 
 static struct kvmppc_ops kvm_ops_hv = {
-	.is_hv_enabled = true,
 	.get_sregs = kvm_arch_vcpu_ioctl_get_sregs_hv,
 	.set_sregs = kvm_arch_vcpu_ioctl_set_sregs_hv,
 	.get_one_reg = kvmppc_get_one_reg_hv,
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index fbd985f0cb02..df36cf2ed22b 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -1526,7 +1526,6 @@ static long kvm_arch_vm_ioctl_pr(struct file *filp,
 }
 
 static struct kvmppc_ops kvm_ops_pr = {
-	.is_hv_enabled = false,
 	.get_sregs = kvm_arch_vcpu_ioctl_get_sregs_pr,
 	.set_sregs = kvm_arch_vcpu_ioctl_set_sregs_pr,
 	.get_one_reg = kvmppc_get_one_reg_pr,
diff --git a/arch/powerpc/kvm/book3s_xics.c b/arch/powerpc/kvm/book3s_xics.c
index f7a5108a3483..02a17dcf1610 100644
--- a/arch/powerpc/kvm/book3s_xics.c
+++ b/arch/powerpc/kvm/book3s_xics.c
@@ -818,7 +818,7 @@ int kvmppc_xics_hcall(struct kvm_vcpu *vcpu, u32 req)
 	}
 
 	/* Check for real mode returning too hard */
-	if (xics->real_mode && vcpu->kvm->arch.kvm_ops->is_hv_enabled)
+	if (xics->real_mode && is_kvmppc_hv_enabled(vcpu->kvm))
 		return kvmppc_xics_rm_complete(vcpu, req);
 
 	switch (req) {
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 0320c1721caa..9ae97686e9f4 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -200,7 +200,7 @@ int kvmppc_sanity_check(struct kvm_vcpu *vcpu)
 		goto out;
 
 	/* HV KVM can only do PAPR mode for now */
-	if (!vcpu->arch.papr_enabled && vcpu->kvm->arch.kvm_ops->is_hv_enabled)
+	if (!vcpu->arch.papr_enabled && is_kvmppc_hv_enabled(vcpu->kvm))
 		goto out;
 
 #ifdef CONFIG_KVM_BOOKE_HV
-- 
cgit 


From 4758fed912d7cd0ba53d2694e89b884114de6580 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 17 Oct 2013 17:56:25 +0200
Subject: ALSA: hda - Treat zero connection as non-error

The zero-length connection list happens so often on Haswell HDMI, and
it results in warning messages like
    ALSA: hda_codec: invalid CONNECT_LIST verb 5[1]:0
at each time the codec resumes from the power-save, which is fairly
annoying.

Since this is no real error, make it shown only in the verbose debug
mode.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_codec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 68801ba001ce..a1632f4056d4 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -565,7 +565,7 @@ int snd_hda_get_raw_connections(struct hda_codec *codec, hda_nid_t nid,
 		range_val = !!(parm & (1 << (shift-1))); /* ranges */
 		val = parm & mask;
 		if (val == 0 && null_count++) {  /* no second chance */
-			snd_printk(KERN_WARNING "hda_codec: "
+			snd_printdd("hda_codec: "
 				   "invalid CONNECT_LIST verb %x[%i]:%x\n",
 				    nid, i, parm);
 			return 0;
-- 
cgit 


From cbbaa603a03cc46681e24d6b2804b62fde95a2af Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 17 Oct 2013 18:03:24 +0200
Subject: ALSA: hda - Fix possible races in HDMI driver

Some per_pin fields and ELD contents might be changed dynamically in
multiple ways where the concurrent accesses are still opened in the
current code.  This patch fixes such possible races by using eld->lock
in appropriate places.

Reported-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index b899eba6f279..c2bad9587d54 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -1342,6 +1342,7 @@ static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
 	bool update_eld = false;
 	bool eld_changed = false;
 
+	mutex_lock(&pin_eld->lock);
 	pin_eld->monitor_present = !!(present & AC_PINSENSE_PRESENCE);
 	if (pin_eld->monitor_present)
 		eld->eld_valid  = !!(present & AC_PINSENSE_ELDV);
@@ -1371,11 +1372,10 @@ static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
 			queue_delayed_work(codec->bus->workq,
 					   &per_pin->work,
 					   msecs_to_jiffies(300));
-			return;
+			goto unlock;
 		}
 	}
 
-	mutex_lock(&pin_eld->lock);
 	if (pin_eld->eld_valid && !eld->eld_valid) {
 		update_eld = true;
 		eld_changed = true;
@@ -1400,12 +1400,13 @@ static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
 			hdmi_setup_audio_infoframe(codec, per_pin,
 						   per_pin->non_pcm);
 	}
-	mutex_unlock(&pin_eld->lock);
 
 	if (eld_changed)
 		snd_ctl_notify(codec->bus->card,
 			       SNDRV_CTL_EVENT_MASK_VALUE | SNDRV_CTL_EVENT_MASK_INFO,
 			       &per_pin->eld_ctl->id);
+ unlock:
+	mutex_unlock(&pin_eld->lock);
 }
 
 static void hdmi_repoll_eld(struct work_struct *work)
@@ -1576,10 +1577,12 @@ static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
 	bool non_pcm;
 
 	non_pcm = check_non_pcm_per_cvt(codec, cvt_nid);
+	mutex_lock(&per_pin->sink_eld.lock);
 	per_pin->channels = substream->runtime->channels;
 	per_pin->setup = true;
 
 	hdmi_setup_audio_infoframe(codec, per_pin, non_pcm);
+	mutex_unlock(&per_pin->sink_eld.lock);
 
 	return hdmi_setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
 }
@@ -1617,11 +1620,14 @@ static int hdmi_pcm_close(struct hda_pcm_stream *hinfo,
 		per_pin = get_pin(spec, pin_idx);
 
 		snd_hda_spdif_ctls_unassign(codec, pin_idx);
+
+		mutex_lock(&per_pin->sink_eld.lock);
 		per_pin->chmap_set = false;
 		memset(per_pin->chmap, 0, sizeof(per_pin->chmap));
 
 		per_pin->setup = false;
 		per_pin->channels = 0;
+		mutex_unlock(&per_pin->sink_eld.lock);
 	}
 
 	return 0;
@@ -1750,10 +1756,12 @@ static int hdmi_chmap_ctl_put(struct snd_kcontrol *kcontrol,
 	ca = hdmi_manual_channel_allocation(ARRAY_SIZE(chmap), chmap);
 	if (ca < 0)
 		return -EINVAL;
+	mutex_lock(&per_pin->sink_eld.lock);
 	per_pin->chmap_set = true;
 	memcpy(per_pin->chmap, chmap, sizeof(chmap));
 	if (prepared)
 		hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
+	mutex_unlock(&per_pin->sink_eld.lock);
 
 	return 0;
 }
-- 
cgit 


From a4e9a38b40a0e2f7dad1a0b355896d23fbdd16e0 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 17 Oct 2013 18:21:12 +0200
Subject: ALSA: hda - Move mutex from hda_eld to per_pin in HDMI codec driver

Since the lock is used primarily in patch_hdmi.c, it's better to move
it in the local struct instead of exporting in hda_eld.  The only
functions requiring the lock in hda_eld.c are proc accessors.  So in
this patch, the proc entry and its creation/deletion/accessors are
moved into patch_hdmi.c, together with the mutex lock to pin_spec
struct.

The former proc info functions are exported so that they can be called
from patch_hdmi.c.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_eld.c    |  48 +++-----------------
 sound/pci/hda/hda_local.h  |  22 ++-------
 sound/pci/hda/patch_hdmi.c | 108 ++++++++++++++++++++++++++++++++++++---------
 3 files changed, 97 insertions(+), 81 deletions(-)

diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c
index d0d7ac1e99d2..f62356c2f54c 100644
--- a/sound/pci/hda/hda_eld.c
+++ b/sound/pci/hda/hda_eld.c
@@ -478,10 +478,9 @@ static void hdmi_print_sad_info(int i, struct cea_sad *a,
 		snd_iprintf(buffer, "sad%d_profile\t\t%d\n", i, a->profile);
 }
 
-static void hdmi_print_eld_info(struct snd_info_entry *entry,
-				struct snd_info_buffer *buffer)
+void snd_hdmi_print_eld_info(struct hdmi_eld *eld,
+			     struct snd_info_buffer *buffer)
 {
-	struct hdmi_eld *eld = entry->private_data;
 	struct parsed_hdmi_eld *e = &eld->info;
 	char buf[SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE];
 	int i;
@@ -500,13 +499,10 @@ static void hdmi_print_eld_info(struct snd_info_entry *entry,
 		[4 ... 7] = "reserved"
 	};
 
-	mutex_lock(&eld->lock);
 	snd_iprintf(buffer, "monitor_present\t\t%d\n", eld->monitor_present);
 	snd_iprintf(buffer, "eld_valid\t\t%d\n", eld->eld_valid);
-	if (!eld->eld_valid) {
-		mutex_unlock(&eld->lock);
+	if (!eld->eld_valid)
 		return;
-	}
 	snd_iprintf(buffer, "monitor_name\t\t%s\n", e->monitor_name);
 	snd_iprintf(buffer, "connection_type\t\t%s\n",
 				eld_connection_type_names[e->conn_type]);
@@ -528,13 +524,11 @@ static void hdmi_print_eld_info(struct snd_info_entry *entry,
 
 	for (i = 0; i < e->sad_count; i++)
 		hdmi_print_sad_info(i, e->sad + i, buffer);
-	mutex_unlock(&eld->lock);
 }
 
-static void hdmi_write_eld_info(struct snd_info_entry *entry,
-				struct snd_info_buffer *buffer)
+void snd_hdmi_write_eld_info(struct hdmi_eld *eld,
+			     struct snd_info_buffer *buffer)
 {
-	struct hdmi_eld *eld = entry->private_data;
 	struct parsed_hdmi_eld *e = &eld->info;
 	char line[64];
 	char name[64];
@@ -542,7 +536,6 @@ static void hdmi_write_eld_info(struct snd_info_entry *entry,
 	long long val;
 	unsigned int n;
 
-	mutex_lock(&eld->lock);
 	while (!snd_info_get_line(buffer, line, sizeof(line))) {
 		if (sscanf(line, "%s %llx", name, &val) != 2)
 			continue;
@@ -594,38 +587,7 @@ static void hdmi_write_eld_info(struct snd_info_entry *entry,
 				e->sad_count = n + 1;
 		}
 	}
-	mutex_unlock(&eld->lock);
-}
-
-
-int snd_hda_eld_proc_new(struct hda_codec *codec, struct hdmi_eld *eld,
-			 int index)
-{
-	char name[32];
-	struct snd_info_entry *entry;
-	int err;
-
-	snprintf(name, sizeof(name), "eld#%d.%d", codec->addr, index);
-	err = snd_card_proc_new(codec->bus->card, name, &entry);
-	if (err < 0)
-		return err;
-
-	snd_info_set_text_ops(entry, eld, hdmi_print_eld_info);
-	entry->c.text.write = hdmi_write_eld_info;
-	entry->mode |= S_IWUSR;
-	eld->proc_entry = entry;
-
-	return 0;
-}
-
-void snd_hda_eld_proc_free(struct hda_codec *codec, struct hdmi_eld *eld)
-{
-	if (!codec->bus->shutdown && eld->proc_entry) {
-		snd_device_free(codec->bus->card, eld->proc_entry);
-		eld->proc_entry = NULL;
-	}
 }
-
 #endif /* CONFIG_PROC_FS */
 
 /* update PCM info based on ELD */
diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index a71bf348e389..46cddd4c7b72 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -752,10 +752,6 @@ struct hdmi_eld {
 	int	eld_size;
 	char    eld_buffer[ELD_MAX_SIZE];
 	struct parsed_hdmi_eld info;
-	struct mutex lock;
-#ifdef CONFIG_PROC_FS
-	struct snd_info_entry *proc_entry;
-#endif
 };
 
 int snd_hdmi_get_eld_size(struct hda_codec *codec, hda_nid_t nid);
@@ -768,20 +764,10 @@ void snd_hdmi_eld_update_pcm_info(struct parsed_hdmi_eld *e,
 			      struct hda_pcm_stream *hinfo);
 
 #ifdef CONFIG_PROC_FS
-int snd_hda_eld_proc_new(struct hda_codec *codec, struct hdmi_eld *eld,
-			 int index);
-void snd_hda_eld_proc_free(struct hda_codec *codec, struct hdmi_eld *eld);
-#else
-static inline int snd_hda_eld_proc_new(struct hda_codec *codec,
-				       struct hdmi_eld *eld,
-				       int index)
-{
-	return 0;
-}
-static inline void snd_hda_eld_proc_free(struct hda_codec *codec,
-					 struct hdmi_eld *eld)
-{
-}
+void snd_hdmi_print_eld_info(struct hdmi_eld *eld,
+			     struct snd_info_buffer *buffer);
+void snd_hdmi_write_eld_info(struct hdmi_eld *eld,
+			     struct snd_info_buffer *buffer);
 #endif
 
 #define SND_PRINT_CHANNEL_ALLOCATION_ADVISED_BUFSIZE 80
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index c2bad9587d54..804adb872e63 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -67,6 +67,7 @@ struct hdmi_spec_per_pin {
 
 	struct hda_codec *codec;
 	struct hdmi_eld sink_eld;
+	struct mutex lock;
 	struct delayed_work work;
 	struct snd_kcontrol *eld_ctl;
 	int repoll_count;
@@ -76,6 +77,9 @@ struct hdmi_spec_per_pin {
 	bool chmap_set;		/* channel-map override by ALSA API? */
 	unsigned char chmap[8]; /* ALSA API channel-map */
 	char pcm_name[8];	/* filled in build_pcm callbacks */
+#ifdef CONFIG_PROC_FS
+	struct snd_info_entry *proc_entry;
+#endif
 };
 
 struct hdmi_spec {
@@ -349,17 +353,19 @@ static int hdmi_eld_ctl_info(struct snd_kcontrol *kcontrol,
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_spec_per_pin *per_pin;
 	struct hdmi_eld *eld;
 	int pin_idx;
 
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_BYTES;
 
 	pin_idx = kcontrol->private_value;
-	eld = &get_pin(spec, pin_idx)->sink_eld;
+	per_pin = get_pin(spec, pin_idx);
+	eld = &per_pin->sink_eld;
 
-	mutex_lock(&eld->lock);
+	mutex_lock(&per_pin->lock);
 	uinfo->count = eld->eld_valid ? eld->eld_size : 0;
-	mutex_unlock(&eld->lock);
+	mutex_unlock(&per_pin->lock);
 
 	return 0;
 }
@@ -369,15 +375,17 @@ static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
 {
 	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 	struct hdmi_spec *spec = codec->spec;
+	struct hdmi_spec_per_pin *per_pin;
 	struct hdmi_eld *eld;
 	int pin_idx;
 
 	pin_idx = kcontrol->private_value;
-	eld = &get_pin(spec, pin_idx)->sink_eld;
+	per_pin = get_pin(spec, pin_idx);
+	eld = &per_pin->sink_eld;
 
-	mutex_lock(&eld->lock);
+	mutex_lock(&per_pin->lock);
 	if (eld->eld_size > ARRAY_SIZE(ucontrol->value.bytes.data)) {
-		mutex_unlock(&eld->lock);
+		mutex_unlock(&per_pin->lock);
 		snd_BUG();
 		return -EINVAL;
 	}
@@ -387,7 +395,7 @@ static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
 	if (eld->eld_valid)
 		memcpy(ucontrol->value.bytes.data, eld->eld_buffer,
 		       eld->eld_size);
-	mutex_unlock(&eld->lock);
+	mutex_unlock(&per_pin->lock);
 
 	return 0;
 }
@@ -478,6 +486,68 @@ static void hdmi_set_channel_count(struct hda_codec *codec,
 				    AC_VERB_SET_CVT_CHAN_COUNT, chs - 1);
 }
 
+/*
+ * ELD proc files
+ */
+
+#ifdef CONFIG_PROC_FS
+static void print_eld_info(struct snd_info_entry *entry,
+			   struct snd_info_buffer *buffer)
+{
+	struct hdmi_spec_per_pin *per_pin = entry->private_data;
+
+	mutex_lock(&per_pin->lock);
+	snd_hdmi_print_eld_info(&per_pin->sink_eld, buffer);
+	mutex_unlock(&per_pin->lock);
+}
+
+static void write_eld_info(struct snd_info_entry *entry,
+			   struct snd_info_buffer *buffer)
+{
+	struct hdmi_spec_per_pin *per_pin = entry->private_data;
+
+	mutex_lock(&per_pin->lock);
+	snd_hdmi_write_eld_info(&per_pin->sink_eld, buffer);
+	mutex_unlock(&per_pin->lock);
+}
+
+static int eld_proc_new(struct hdmi_spec_per_pin *per_pin, int index)
+{
+	char name[32];
+	struct hda_codec *codec = per_pin->codec;
+	struct snd_info_entry *entry;
+	int err;
+
+	snprintf(name, sizeof(name), "eld#%d.%d", codec->addr, index);
+	err = snd_card_proc_new(codec->bus->card, name, &entry);
+	if (err < 0)
+		return err;
+
+	snd_info_set_text_ops(entry, per_pin, print_eld_info);
+	entry->c.text.write = write_eld_info;
+	entry->mode |= S_IWUSR;
+	per_pin->proc_entry = entry;
+
+	return 0;
+}
+
+static void eld_proc_free(struct hdmi_spec_per_pin *per_pin)
+{
+	if (!per_pin->codec->bus->shutdown && per_pin->proc_entry) {
+		snd_device_free(per_pin->codec->bus->card, per_pin->proc_entry);
+		per_pin->proc_entry = NULL;
+	}
+}
+#else
+static inline int snd_hda_eld_proc_new(struct hdmi_spec_per_pin *per_pin,
+				       int index)
+{
+	return 0;
+}
+static inline void snd_hda_eld_proc_free(struct hdmi_spec_per_pin *per_pin)
+{
+}
+#endif
 
 /*
  * Channel mapping routines
@@ -1342,7 +1412,7 @@ static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
 	bool update_eld = false;
 	bool eld_changed = false;
 
-	mutex_lock(&pin_eld->lock);
+	mutex_lock(&per_pin->lock);
 	pin_eld->monitor_present = !!(present & AC_PINSENSE_PRESENCE);
 	if (pin_eld->monitor_present)
 		eld->eld_valid  = !!(present & AC_PINSENSE_ELDV);
@@ -1406,7 +1476,7 @@ static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
 			       SNDRV_CTL_EVENT_MASK_VALUE | SNDRV_CTL_EVENT_MASK_INFO,
 			       &per_pin->eld_ctl->id);
  unlock:
-	mutex_unlock(&pin_eld->lock);
+	mutex_unlock(&per_pin->lock);
 }
 
 static void hdmi_repoll_eld(struct work_struct *work)
@@ -1577,12 +1647,12 @@ static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
 	bool non_pcm;
 
 	non_pcm = check_non_pcm_per_cvt(codec, cvt_nid);
-	mutex_lock(&per_pin->sink_eld.lock);
+	mutex_lock(&per_pin->lock);
 	per_pin->channels = substream->runtime->channels;
 	per_pin->setup = true;
 
 	hdmi_setup_audio_infoframe(codec, per_pin, non_pcm);
-	mutex_unlock(&per_pin->sink_eld.lock);
+	mutex_unlock(&per_pin->lock);
 
 	return hdmi_setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
 }
@@ -1621,13 +1691,13 @@ static int hdmi_pcm_close(struct hda_pcm_stream *hinfo,
 
 		snd_hda_spdif_ctls_unassign(codec, pin_idx);
 
-		mutex_lock(&per_pin->sink_eld.lock);
+		mutex_lock(&per_pin->lock);
 		per_pin->chmap_set = false;
 		memset(per_pin->chmap, 0, sizeof(per_pin->chmap));
 
 		per_pin->setup = false;
 		per_pin->channels = 0;
-		mutex_unlock(&per_pin->sink_eld.lock);
+		mutex_unlock(&per_pin->lock);
 	}
 
 	return 0;
@@ -1756,12 +1826,12 @@ static int hdmi_chmap_ctl_put(struct snd_kcontrol *kcontrol,
 	ca = hdmi_manual_channel_allocation(ARRAY_SIZE(chmap), chmap);
 	if (ca < 0)
 		return -EINVAL;
-	mutex_lock(&per_pin->sink_eld.lock);
+	mutex_lock(&per_pin->lock);
 	per_pin->chmap_set = true;
 	memcpy(per_pin->chmap, chmap, sizeof(chmap));
 	if (prepared)
 		hdmi_setup_audio_infoframe(codec, per_pin, per_pin->non_pcm);
-	mutex_unlock(&per_pin->sink_eld.lock);
+	mutex_unlock(&per_pin->lock);
 
 	return 0;
 }
@@ -1878,12 +1948,11 @@ static int generic_hdmi_init_per_pins(struct hda_codec *codec)
 
 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
-		struct hdmi_eld *eld = &per_pin->sink_eld;
 
 		per_pin->codec = codec;
-		mutex_init(&eld->lock);
+		mutex_init(&per_pin->lock);
 		INIT_DELAYED_WORK(&per_pin->work, hdmi_repoll_eld);
-		snd_hda_eld_proc_new(codec, eld, pin_idx);
+		eld_proc_new(per_pin, pin_idx);
 	}
 	return 0;
 }
@@ -1924,10 +1993,9 @@ static void generic_hdmi_free(struct hda_codec *codec)
 
 	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
 		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
-		struct hdmi_eld *eld = &per_pin->sink_eld;
 
 		cancel_delayed_work(&per_pin->work);
-		snd_hda_eld_proc_free(codec, eld);
+		eld_proc_free(per_pin);
 	}
 
 	flush_workqueue(codec->bus->workq);
-- 
cgit 


From 05465f4e25c0c37a01a22894220611c58922bb29 Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Tue, 15 Oct 2013 17:27:51 +0200
Subject: ARM: tegra: Mark Tegra30 display controller compatible with Tegra20

The display controller found on Tegra30 SoCs is backwards-compatible
with the one on Tegra20 SoCs.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/boot/dts/tegra30.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index 0022c127e1d9..d3d71ab7216a 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -141,7 +141,7 @@
 		};
 
 		dc@54200000 {
-			compatible = "nvidia,tegra30-dc";
+			compatible = "nvidia,tegra30-dc", "nvidia,tegra20-dc";
 			reg = <0x54200000 0x00040000>;
 			interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&tegra_car TEGRA30_CLK_DISP1>,
-- 
cgit 


From 6ef068cb8e77784431b6c80adc49d0b0a6a5df66 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Thu, 17 Oct 2013 12:07:58 -0300
Subject: perf evlist: Introduce perf_evlist__strerror_tp method

Out of 'perf trace', should be used by other tools that uses
tracepoints.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ramkumar Ramachandra <artagnon@gmail.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-lyvtxhchz4ga8fwht15x8wou@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 26 +++++---------------------
 tools/perf/util/evlist.c   | 27 +++++++++++++++++++++++++++
 tools/perf/util/evlist.h   |  2 ++
 3 files changed, 34 insertions(+), 21 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index ec8289570f4f..78b0d6a5fdff 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1814,27 +1814,11 @@ out:
 	trace->live = false;
 	return err;
 out_error_tp:
-	switch(errno) {
-	case ENOENT:
-		fputs("Error:\tUnable to find debugfs\n"
-		      "Hint:\tWas your kernel was compiled with debugfs support?\n"
-		      "Hint:\tIs the debugfs filesystem mounted?\n"
-		      "Hint:\tTry 'sudo mount -t debugfs nodev /sys/kernel/debug'\n",
-		      trace->output);
-		break;
-	case EACCES:
-		fprintf(trace->output,
-			"Error:\tNo permissions to read %s/tracing/events/raw_syscalls\n"
-			"Hint:\tTry 'sudo mount -o remount,mode=755 %s'\n",
-			debugfs_mountpoint, debugfs_mountpoint);
-		break;
-	default: {
-		char bf[256];
-		fprintf(trace->output, "Can't trace: %s\n",
-			strerror_r(errno, bf, sizeof(bf)));
-	}
-		break;
-	}
+{
+	char errbuf[BUFSIZ];
+	perf_evlist__strerror_tp(evlist, errno, errbuf, sizeof(errbuf));
+	fprintf(trace->output, "%s\n", errbuf);
+}
 	goto out_delete_evlist;
 }
 
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index cb9523f50a37..6737420891cd 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1126,3 +1126,30 @@ size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp)
 
 	return printed + fprintf(fp, "\n");;
 }
+
+int perf_evlist__strerror_tp(struct perf_evlist *evlist __maybe_unused,
+			     int err, char *buf, size_t size)
+{
+	char sbuf[128];
+
+	switch (err) {
+	case ENOENT:
+		scnprintf(buf, size, "%s",
+			  "Error:\tUnable to find debugfs\n"
+			  "Hint:\tWas your kernel was compiled with debugfs support?\n"
+			  "Hint:\tIs the debugfs filesystem mounted?\n"
+			  "Hint:\tTry 'sudo mount -t debugfs nodev /sys/kernel/debug'");
+		break;
+	case EACCES:
+		scnprintf(buf, size,
+			  "Error:\tNo permissions to read %s/tracing/events/raw_syscalls\n"
+			  "Hint:\tTry 'sudo mount -o remount,mode=755 %s'\n",
+			  debugfs_mountpoint, debugfs_mountpoint);
+		break;
+	default:
+		scnprintf(buf, size, "%s", strerror_r(err, sbuf, sizeof(sbuf)));
+		break;
+	}
+
+	return 0;
+}
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 722618f84c53..386de1036442 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -168,6 +168,8 @@ static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
 
 size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp);
 
+int perf_evlist__strerror_tp(struct perf_evlist *evlist, int err, char *buf, size_t size);
+
 static inline unsigned int perf_mmap__read_head(struct perf_mmap *mm)
 {
 	struct perf_event_mmap_page *pc = mm->base;
-- 
cgit 


From c71d39090eae67c324a870f3c0d26347db504705 Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Tue, 15 Oct 2013 17:28:02 +0200
Subject: ARM: tegra: Use symbolic names for gr3d clocks

Commit 05849c9381354be4bd4a2a878b5ecb12d375a1a0 (ARM: tegra30: convert
device tree files to use CLK defines) updated the Tegra30 device tree to
use symbolic clock names but forgot to update this node.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/boot/dts/tegra30.dtsi | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
index d3d71ab7216a..2bd55cfd88ad 100644
--- a/arch/arm/boot/dts/tegra30.dtsi
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -136,7 +136,8 @@
 		gr3d {
 			compatible = "nvidia,tegra30-gr3d";
 			reg = <0x54180000 0x00040000>;
-			clocks = <&tegra_car 24 &tegra_car 98>;
+			clocks = <&tegra_car TEGRA30_CLK_GR3D
+				  &tegra_car TEGRA30_CLK_GR3D2>;
 			clock-names = "3d", "3d2";
 		};
 
-- 
cgit 


From 08e96e1a3c5fd823f846df813b0b8be8e734c6c2 Mon Sep 17 00:00:00 2001
From: Eric Sandeen <sandeen@sandeen.net>
Date: Fri, 11 Oct 2013 20:59:05 -0500
Subject: xfs: remove newlines from strings passed to __xfs_printk

__xfs_printk adds its own "\n".  Having it in the original string
leads to unintentional blank lines from these messages.

Most format strings have no newline, but a few do, leading to
i.e.:

[ 7347.119911] XFS (sdb2): Access to block zero in inode 132 start_block: 0 start_off: 0 blkcnt: 0 extent-state: 0 lastx: 1a05
[ 7347.119911]
[ 7347.119919] XFS (sdb2): Access to block zero in inode 132 start_block: 0 start_off: 0 blkcnt: 0 extent-state: 0 lastx: 1a05
[ 7347.119919]

Fix them all.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_bmap.c        |  2 +-
 fs/xfs/xfs_buf.c         |  6 +++---
 fs/xfs/xfs_dir2_node.c   |  2 +-
 fs/xfs/xfs_error.c       |  2 +-
 fs/xfs/xfs_iomap.c       |  2 +-
 fs/xfs/xfs_log.c         |  2 +-
 fs/xfs/xfs_log_recover.c |  6 +++---
 fs/xfs/xfs_qm_syscalls.c | 12 ++++++------
 fs/xfs/xfs_sb.c          |  4 ++--
 fs/xfs/xfs_super.c       |  2 +-
 10 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index f47e65c30be6..e6b42026f9d4 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -1482,7 +1482,7 @@ xfs_bmap_search_extents(
 		xfs_alert_tag(ip->i_mount, XFS_PTAG_FSBLOCK_ZERO,
 				"Access to block zero in inode %llu "
 				"start_block: %llx start_off: %llx "
-				"blkcnt: %llx extent-state: %x lastx: %x\n",
+				"blkcnt: %llx extent-state: %x lastx: %x",
 			(unsigned long long)ip->i_ino,
 			(unsigned long long)gotp->br_startblock,
 			(unsigned long long)gotp->br_startoff,
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index 263470075ea2..75e4ea7b109a 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -590,7 +590,7 @@ found:
 		error = _xfs_buf_map_pages(bp, flags);
 		if (unlikely(error)) {
 			xfs_warn(target->bt_mount,
-				"%s: failed to map pages\n", __func__);
+				"%s: failed to map pagesn", __func__);
 			xfs_buf_relse(bp);
 			return NULL;
 		}
@@ -809,7 +809,7 @@ xfs_buf_get_uncached(
 	error = _xfs_buf_map_pages(bp, 0);
 	if (unlikely(error)) {
 		xfs_warn(target->bt_mount,
-			"%s: failed to map pages\n", __func__);
+			"%s: failed to map pages", __func__);
 		goto fail_free_mem;
 	}
 
@@ -1618,7 +1618,7 @@ xfs_setsize_buftarg_flags(
 		bdevname(btp->bt_bdev, name);
 
 		xfs_warn(btp->bt_mount,
-			"Cannot set_blocksize to %u on device %s\n",
+			"Cannot set_blocksize to %u on device %s",
 			sectorsize, name);
 		return EINVAL;
 	}
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index 4c3dba7ffb74..34df052683eb 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -1101,7 +1101,7 @@ xfs_dir2_leafn_rebalance(
 		state->inleaf = 1;
 		blk2->index = 0;
 		xfs_alert(args->dp->i_mount,
-	"%s: picked the wrong leaf? reverting original leaf: blk1->index %d\n",
+	"%s: picked the wrong leaf? reverting original leaf: blk1->index %d",
 			__func__, blk1->index);
 	}
 }
diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c
index 1123d93ff795..40f2985a27bc 100644
--- a/fs/xfs/xfs_error.c
+++ b/fs/xfs/xfs_error.c
@@ -159,7 +159,7 @@ xfs_error_report(
 {
 	if (level <= xfs_error_level) {
 		xfs_alert_tag(mp, XFS_PTAG_ERROR_REPORT,
-		"Internal error %s at line %d of file %s.  Caller 0x%p\n",
+		"Internal error %s at line %d of file %s.  Caller 0x%p",
 			    tag, linenum, filename, ra);
 
 		xfs_stack_trace();
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 521fdf2ac6da..338b33263c56 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -110,7 +110,7 @@ xfs_alert_fsblock_zero(
 	xfs_alert_tag(ip->i_mount, XFS_PTAG_FSBLOCK_ZERO,
 			"Access to block zero in inode %llu "
 			"start_block: %llx start_off: %llx "
-			"blkcnt: %llx extent-state: %x\n",
+			"blkcnt: %llx extent-state: %x",
 		(unsigned long long)ip->i_ino,
 		(unsigned long long)imap->br_startblock,
 		(unsigned long long)imap->br_startoff,
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 613ed9414e70..0461f0872244 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -1989,7 +1989,7 @@ xlog_print_tic_res(
 
 	for (i = 0; i < ticket->t_res_num; i++) {
 		uint r_type = ticket->t_res_arr[i].r_type;
-		xfs_warn(mp, "region[%u]: %s - %u bytes\n", i,
+		xfs_warn(mp, "region[%u]: %s - %u bytes", i,
 			    ((r_type <= 0 || r_type > XLOG_REG_TYPE_MAX) ?
 			    "bad-rtype" : res_type_str[r_type-1]),
 			    ticket->t_res_arr[i].r_len);
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 39797490a1f1..e7ca48e8f515 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -305,9 +305,9 @@ xlog_header_check_dump(
 	xfs_mount_t		*mp,
 	xlog_rec_header_t	*head)
 {
-	xfs_debug(mp, "%s:  SB : uuid = %pU, fmt = %d\n",
+	xfs_debug(mp, "%s:  SB : uuid = %pU, fmt = %d",
 		__func__, &mp->m_sb.sb_uuid, XLOG_FMT);
-	xfs_debug(mp, "    log : uuid = %pU, fmt = %d\n",
+	xfs_debug(mp, "    log : uuid = %pU, fmt = %d",
 		&head->h_fs_uuid, be32_to_cpu(head->h_fmt));
 }
 #else
@@ -4077,7 +4077,7 @@ xlog_unpack_data_crc(
 	if (crc != rhead->h_crc) {
 		if (rhead->h_crc || xfs_sb_version_hascrc(&log->l_mp->m_sb)) {
 			xfs_alert(log->l_mp,
-		"log record CRC mismatch: found 0x%x, expected 0x%x.\n",
+		"log record CRC mismatch: found 0x%x, expected 0x%x.",
 					le32_to_cpu(rhead->h_crc),
 					le32_to_cpu(crc));
 			xfs_hex_dump(dp, 32);
diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c
index 8174aad0b388..fb6709191811 100644
--- a/fs/xfs/xfs_qm_syscalls.c
+++ b/fs/xfs/xfs_qm_syscalls.c
@@ -287,7 +287,7 @@ xfs_qm_scall_trunc_qfiles(
 	int		error = 0, error2 = 0;
 
 	if (!xfs_sb_version_hasquota(&mp->m_sb) || flags == 0) {
-		xfs_debug(mp, "%s: flags=%x m_qflags=%x\n",
+		xfs_debug(mp, "%s: flags=%x m_qflags=%x",
 			__func__, flags, mp->m_qflags);
 		return XFS_ERROR(EINVAL);
 	}
@@ -325,7 +325,7 @@ xfs_qm_scall_quotaon(
 	sbflags = 0;
 
 	if (flags == 0) {
-		xfs_debug(mp, "%s: zero flags, m_qflags=%x\n",
+		xfs_debug(mp, "%s: zero flags, m_qflags=%x",
 			__func__, mp->m_qflags);
 		return XFS_ERROR(EINVAL);
 	}
@@ -348,7 +348,7 @@ xfs_qm_scall_quotaon(
 	     (mp->m_sb.sb_qflags & XFS_PQUOTA_ACCT) == 0 &&
 	     (flags & XFS_PQUOTA_ENFD))) {
 		xfs_debug(mp,
-			"%s: Can't enforce without acct, flags=%x sbflags=%x\n",
+			"%s: Can't enforce without acct, flags=%x sbflags=%x",
 			__func__, flags, mp->m_sb.sb_qflags);
 		return XFS_ERROR(EINVAL);
 	}
@@ -648,7 +648,7 @@ xfs_qm_scall_setqlim(
 			q->qi_bsoftlimit = soft;
 		}
 	} else {
-		xfs_debug(mp, "blkhard %Ld < blksoft %Ld\n", hard, soft);
+		xfs_debug(mp, "blkhard %Ld < blksoft %Ld", hard, soft);
 	}
 	hard = (newlim->d_fieldmask & FS_DQ_RTBHARD) ?
 		(xfs_qcnt_t) XFS_BB_TO_FSB(mp, newlim->d_rtb_hardlimit) :
@@ -664,7 +664,7 @@ xfs_qm_scall_setqlim(
 			q->qi_rtbsoftlimit = soft;
 		}
 	} else {
-		xfs_debug(mp, "rtbhard %Ld < rtbsoft %Ld\n", hard, soft);
+		xfs_debug(mp, "rtbhard %Ld < rtbsoft %Ld", hard, soft);
 	}
 
 	hard = (newlim->d_fieldmask & FS_DQ_IHARD) ?
@@ -681,7 +681,7 @@ xfs_qm_scall_setqlim(
 			q->qi_isoftlimit = soft;
 		}
 	} else {
-		xfs_debug(mp, "ihard %Ld < isoft %Ld\n", hard, soft);
+		xfs_debug(mp, "ihard %Ld < isoft %Ld", hard, soft);
 	}
 
 	/*
diff --git a/fs/xfs/xfs_sb.c b/fs/xfs/xfs_sb.c
index a5b59d92eb70..a89d0bcc7959 100644
--- a/fs/xfs/xfs_sb.c
+++ b/fs/xfs/xfs_sb.c
@@ -249,13 +249,13 @@ xfs_mount_validate_sb(
 	if (xfs_sb_version_has_pquotino(sbp)) {
 		if (sbp->sb_qflags & (XFS_OQUOTA_ENFD | XFS_OQUOTA_CHKD)) {
 			xfs_notice(mp,
-			   "Version 5 of Super block has XFS_OQUOTA bits.\n");
+			   "Version 5 of Super block has XFS_OQUOTA bits.");
 			return XFS_ERROR(EFSCORRUPTED);
 		}
 	} else if (sbp->sb_qflags & (XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD |
 				XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD)) {
 			xfs_notice(mp,
-"Superblock earlier than Version 5 has XFS_[PQ]UOTA_{ENFD|CHKD} bits.\n");
+"Superblock earlier than Version 5 has XFS_[PQ]UOTA_{ENFD|CHKD} bits.");
 			return XFS_ERROR(EFSCORRUPTED);
 	}
 
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 938e50fe6c61..c2e3e9535b26 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1241,7 +1241,7 @@ xfs_fs_remount(
 			 */
 #if 0
 			xfs_info(mp,
-		"mount option \"%s\" not supported for remount\n", p);
+		"mount option \"%s\" not supported for remount", p);
 			return -EINVAL;
 #else
 			break;
-- 
cgit 


From 31625f28ad7be67701dc4cefcf52087addd88af4 Mon Sep 17 00:00:00 2001
From: Eric Sandeen <sandeen@sandeen.net>
Date: Fri, 11 Oct 2013 14:12:31 -0500
Subject: xfs: don't emit corruption noise on fs probes

If we get EWRONGFS due to probing of non-xfs filesystems,
there's no need to issue the scary corruption error and backtrace.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_sb.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/xfs/xfs_sb.c b/fs/xfs/xfs_sb.c
index a89d0bcc7959..b4762279bb78 100644
--- a/fs/xfs/xfs_sb.c
+++ b/fs/xfs/xfs_sb.c
@@ -624,8 +624,9 @@ xfs_sb_read_verify(
 
 out_error:
 	if (error) {
-		XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW,
-				     mp, bp->b_addr);
+		if (error != EWRONGFS)
+			XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW,
+					     mp, bp->b_addr);
 		xfs_buf_ioerror(bp, error);
 	}
 }
-- 
cgit 


From 59e5a0e821d838854b3afd030d31f82cee3ecd58 Mon Sep 17 00:00:00 2001
From: Eric Sandeen <sandeen@sandeen.net>
Date: Fri, 11 Oct 2013 14:14:05 -0500
Subject: xfs: don't break from growfs ag update loop on error

When xfs_growfs_data_private() is updating backup superblocks,
it bails out on the first error encountered, whether reading or
writing:

* If we get an error writing out the alternate superblocks,
* just issue a warning and continue.  The real work is
* already done and committed.

This can cause a problem later during repair, because repair
looks at all superblocks, and picks the most prevalent one
as correct.  If we bail out early in the backup superblock
loop, we can end up with more "bad" matching superblocks than
good, and a post-growfs repair may revert the filesystem to
the old geometry.

With the combination of superblock verifiers and old bugs,
we're more likely to encounter read errors due to verification.

And perhaps even worse, we don't even properly write any of the
newly-added superblocks in the new AGs.

Even with this change, growfs will still say:

  xfs_growfs: XFS_IOC_FSGROWFSDATA xfsctl failed: Structure needs cleaning
  data blocks changed from 319815680 to 335216640

which might be confusing to the user, but it at least communicates
that something has gone wrong, and dmesg will probably highlight
the need for an xfs_repair.

And this is still best-effort; if verifiers fail on more than
half the backup supers, they may still "win" - but that's probably
best left to repair to more gracefully handle by doing its own
strict verification as part of the backup super "voting."

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Acked-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_fsops.c | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index fdae4ec5f21b..76c7b2b4fa8d 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -155,7 +155,7 @@ xfs_growfs_data_private(
 	xfs_buf_t		*bp;
 	int			bucket;
 	int			dpct;
-	int			error;
+	int			error, saved_error = 0;
 	xfs_agnumber_t		nagcount;
 	xfs_agnumber_t		nagimax = 0;
 	xfs_rfsblock_t		nb, nb_mod;
@@ -498,29 +498,33 @@ xfs_growfs_data_private(
 				error = ENOMEM;
 		}
 
+		/*
+		 * If we get an error reading or writing alternate superblocks,
+		 * continue.  xfs_repair chooses the "best" superblock based
+		 * on most matches; if we break early, we'll leave more
+		 * superblocks un-updated than updated, and xfs_repair may
+		 * pick them over the properly-updated primary.
+		 */
 		if (error) {
 			xfs_warn(mp,
 		"error %d reading secondary superblock for ag %d",
 				error, agno);
-			break;
+			saved_error = error;
+			continue;
 		}
 		xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb, XFS_SB_ALL_BITS);
 
-		/*
-		 * If we get an error writing out the alternate superblocks,
-		 * just issue a warning and continue.  The real work is
-		 * already done and committed.
-		 */
 		error = xfs_bwrite(bp);
 		xfs_buf_relse(bp);
 		if (error) {
 			xfs_warn(mp,
 		"write error %d updating secondary superblock for ag %d",
 				error, agno);
-			break; /* no point in continuing */
+			saved_error = error;
+			continue;
 		}
 	}
-	return error;
+	return saved_error ? saved_error : error;
 
  error0:
 	xfs_trans_cancel(tp, XFS_TRANS_ABORT);
-- 
cgit 


From c1d607cc4a8ea1ef89d7f6f5728112bc5a52f2f6 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 11 Oct 2013 08:54:49 -0700
Subject: inet_diag: use sock_gen_put()

TCP listener refactoring, part 6 :

Use sock_gen_put() from inet_diag_dump_one_icsk() for future
SYN_RECV support.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/inet_diag.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/net/ipv4/inet_diag.c b/net/ipv4/inet_diag.c
index 41e1c3ea8b51..56a964a553d2 100644
--- a/net/ipv4/inet_diag.c
+++ b/net/ipv4/inet_diag.c
@@ -336,12 +336,9 @@ int inet_diag_dump_one_icsk(struct inet_hashinfo *hashinfo, struct sk_buff *in_s
 		err = 0;
 
 out:
-	if (sk) {
-		if (sk->sk_state == TCP_TIME_WAIT)
-			inet_twsk_put((struct inet_timewait_sock *)sk);
-		else
-			sock_put(sk);
-	}
+	if (sk)
+		sock_gen_put(sk);
+
 out_nosk:
 	return err;
 }
-- 
cgit 


From fe66bb2db51c9847c23682ef9c140bab6e14b0fa Mon Sep 17 00:00:00 2001
From: Or Gerlitz <ogerlitz@mellanox.com>
Date: Tue, 15 Oct 2013 16:55:21 +0200
Subject: net/mlx4: Clean the code to eliminate trivial build warnings
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Remove code that triggers trivial build warnings.

drivers/net/ethernet/mellanox/mlx4/cmd.c: In function ‘mlx4_set_vf_vlan’:
drivers/net/ethernet/mellanox/mlx4/cmd.c:2256: warning: variable ‘vf_oper’ set but not used
drivers/net/ethernet/mellanox/mlx4/mcg.c: In function ‘mlx4_map_sw_to_hw_steering_mode’:
drivers/net/ethernet/mellanox/mlx4/mcg.c:648: warning: comparison of unsigned expression < 0 is always false
drivers/net/ethernet/mellanox/mlx4/mcg.c: In function ‘mlx4_map_sw_to_hw_steering_id’:
drivers/net/ethernet/mellanox/mlx4/mcg.c:685: warning: comparison of unsigned expression < 0 is always false
drivers/net/ethernet/mellanox/mlx4/mcg.c: In function ‘mlx4_hw_rule_sz’:
drivers/net/ethernet/mellanox/mlx4/mcg.c:712: warning: comparison of unsigned expression < 0 is always false
drivers/net/ethernet/mellanox/mlx4/fw.c: In function ‘mlx4_opreq_action’:
drivers/net/ethernet/mellanox/mlx4/fw.c:1732: warning: variable ‘type_m’ set but not used
drivers/net/ethernet/mellanox/mlx4/srq.c:302: warning: no previous prototype for ‘mlx4_srq_lookup’

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/cmd.c | 2 --
 drivers/net/ethernet/mellanox/mlx4/mcg.c | 6 +++---
 drivers/net/ethernet/mellanox/mlx4/srq.c | 1 +
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index ea20182c6969..735765c21c95 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -2253,7 +2253,6 @@ EXPORT_SYMBOL_GPL(mlx4_set_vf_mac);
 int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos)
 {
 	struct mlx4_priv *priv = mlx4_priv(dev);
-	struct mlx4_vport_oper_state *vf_oper;
 	struct mlx4_vport_state *vf_admin;
 	int slave;
 
@@ -2269,7 +2268,6 @@ int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos)
 		return -EINVAL;
 
 	vf_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
-	vf_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
 
 	if ((0 == vlan) && (0 == qos))
 		vf_admin->default_vlan = MLX4_VGT;
diff --git a/drivers/net/ethernet/mellanox/mlx4/mcg.c b/drivers/net/ethernet/mellanox/mlx4/mcg.c
index 55f6245efb6c..70f0213d68c4 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mcg.c
+++ b/drivers/net/ethernet/mellanox/mlx4/mcg.c
@@ -645,7 +645,7 @@ static const u8 __promisc_mode[] = {
 int mlx4_map_sw_to_hw_steering_mode(struct mlx4_dev *dev,
 				    enum mlx4_net_trans_promisc_mode flow_type)
 {
-	if (flow_type >= MLX4_FS_MODE_NUM || flow_type < 0) {
+	if (flow_type >= MLX4_FS_MODE_NUM) {
 		mlx4_err(dev, "Invalid flow type. type = %d\n", flow_type);
 		return -EINVAL;
 	}
@@ -681,7 +681,7 @@ const u16 __sw_id_hw[] = {
 int mlx4_map_sw_to_hw_steering_id(struct mlx4_dev *dev,
 				  enum mlx4_net_trans_rule_id id)
 {
-	if (id >= MLX4_NET_TRANS_RULE_NUM || id < 0) {
+	if (id >= MLX4_NET_TRANS_RULE_NUM) {
 		mlx4_err(dev, "Invalid network rule id. id = %d\n", id);
 		return -EINVAL;
 	}
@@ -706,7 +706,7 @@ static const int __rule_hw_sz[] = {
 int mlx4_hw_rule_sz(struct mlx4_dev *dev,
 	       enum mlx4_net_trans_rule_id id)
 {
-	if (id >= MLX4_NET_TRANS_RULE_NUM || id < 0) {
+	if (id >= MLX4_NET_TRANS_RULE_NUM) {
 		mlx4_err(dev, "Invalid network rule id. id = %d\n", id);
 		return -EINVAL;
 	}
diff --git a/drivers/net/ethernet/mellanox/mlx4/srq.c b/drivers/net/ethernet/mellanox/mlx4/srq.c
index 79fd269e2c54..9e08e35ce351 100644
--- a/drivers/net/ethernet/mellanox/mlx4/srq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/srq.c
@@ -34,6 +34,7 @@
 #include <linux/init.h>
 
 #include <linux/mlx4/cmd.h>
+#include <linux/mlx4/srq.h>
 #include <linux/export.h>
 #include <linux/gfp.h>
 
-- 
cgit 


From 5930e8d0ab3689f1e239566443ca8f53e45e01cc Mon Sep 17 00:00:00 2001
From: Or Gerlitz <ogerlitz@mellanox.com>
Date: Tue, 15 Oct 2013 16:55:22 +0200
Subject: net/mlx4: Fix typo, move similar defs to same location

Small code cleanup:

1. change MLX4_DEV_CAP_FLAGS2_REASSIGN_MAC_EN to MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN

2. put MLX4_SET_PORT_PRIO2TC and MLX4_SET_PORT_SCHEDULER in the same union with the
   other MLX4_SET_PORT_yyy

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 2 +-
 drivers/net/ethernet/mellanox/mlx4/fw.c        | 2 +-
 include/linux/mlx4/cmd.h                       | 6 ++----
 include/linux/mlx4/device.h                    | 2 +-
 4 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index fa37b7a61213..85d91665d400 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -1733,7 +1733,7 @@ void mlx4_en_stop_port(struct net_device *dev, int detach)
 
 	/* Unregister Mac address for the port */
 	mlx4_en_put_qp(priv);
-	if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAGS2_REASSIGN_MAC_EN))
+	if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN))
 		mdev->mac_removed[priv->port] = 1;
 
 	/* Free RX Rings */
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index 0d63daa2f422..a377484cf544 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -652,7 +652,7 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
 		 QUERY_DEV_CAP_RSVD_LKEY_OFFSET);
 	MLX4_GET(field, outbox, QUERY_DEV_CAP_FW_REASSIGN_MAC);
 	if (field & 1<<6)
-		dev_cap->flags2 |= MLX4_DEV_CAP_FLAGS2_REASSIGN_MAC_EN;
+		dev_cap->flags2 |= MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN;
 	MLX4_GET(dev_cap->max_icm_sz, outbox,
 		 QUERY_DEV_CAP_MAX_ICM_SZ_OFFSET);
 	if (dev_cap->flags & MLX4_DEV_CAP_FLAG_COUNTERS)
diff --git a/include/linux/mlx4/cmd.h b/include/linux/mlx4/cmd.h
index cd1fdf75103b..8df61bc5da00 100644
--- a/include/linux/mlx4/cmd.h
+++ b/include/linux/mlx4/cmd.h
@@ -154,10 +154,6 @@ enum {
 	MLX4_CMD_QUERY_IF_STAT	 = 0X54,
 	MLX4_CMD_SET_IF_STAT	 = 0X55,
 
-	/* set port opcode modifiers */
-	MLX4_SET_PORT_PRIO2TC = 0x8,
-	MLX4_SET_PORT_SCHEDULER  = 0x9,
-
 	/* register/delete flow steering network rules */
 	MLX4_QP_FLOW_STEERING_ATTACH = 0x65,
 	MLX4_QP_FLOW_STEERING_DETACH = 0x66,
@@ -182,6 +178,8 @@ enum {
 	MLX4_SET_PORT_VLAN_TABLE = 0x3,
 	MLX4_SET_PORT_PRIO_MAP  = 0x4,
 	MLX4_SET_PORT_GID_TABLE = 0x5,
+	MLX4_SET_PORT_PRIO2TC	= 0x8,
+	MLX4_SET_PORT_SCHEDULER = 0x9,
 };
 
 enum {
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 24ce6bdd540e..9ad0c18495ad 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -155,7 +155,7 @@ enum {
 	MLX4_DEV_CAP_FLAG2_RSS_TOP		= 1LL <<  1,
 	MLX4_DEV_CAP_FLAG2_RSS_XOR		= 1LL <<  2,
 	MLX4_DEV_CAP_FLAG2_FS_EN		= 1LL <<  3,
-	MLX4_DEV_CAP_FLAGS2_REASSIGN_MAC_EN	= 1LL <<  4,
+	MLX4_DEV_CAP_FLAG2_REASSIGN_MAC_EN	= 1LL <<  4,
 	MLX4_DEV_CAP_FLAG2_TS			= 1LL <<  5,
 	MLX4_DEV_CAP_FLAG2_VLAN_CONTROL		= 1LL <<  6,
 	MLX4_DEV_CAP_FLAG2_FSM			= 1LL <<  7,
-- 
cgit 


From 39e210fd23d45cf2521aaf0855c838bc5e37fbd6 Mon Sep 17 00:00:00 2001
From: Amir Vadai <amirv@mellanox.com>
Date: Tue, 15 Oct 2013 16:55:23 +0200
Subject: net/mlx4: Unused local variable in mlx4_opreq_action

Clean up warning added by commit fe6f700d "net/mlx4_core: Respond to
operation request by firmware".

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/fw.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index a377484cf544..c151e7a6710a 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -1713,7 +1713,6 @@ void mlx4_opreq_action(struct work_struct *work)
 	u32 *outbox;
 	u32 modifier;
 	u16 token;
-	u16 type_m;
 	u16 type;
 	int err;
 	u32 num_qps;
@@ -1746,7 +1745,6 @@ void mlx4_opreq_action(struct work_struct *work)
 		MLX4_GET(modifier, outbox, GET_OP_REQ_MODIFIER_OFFSET);
 		MLX4_GET(token, outbox, GET_OP_REQ_TOKEN_OFFSET);
 		MLX4_GET(type, outbox, GET_OP_REQ_TYPE_OFFSET);
-		type_m = type >> 12;
 		type &= 0xfff;
 
 		switch (type) {
-- 
cgit 


From b046ffe54dc13ff8ae918c83bedb71aa7919d63b Mon Sep 17 00:00:00 2001
From: Eyal Perry <eyalpe@mellanox.com>
Date: Tue, 15 Oct 2013 16:55:24 +0200
Subject: net/mlx4_core: Load higher level modules according to ports type

Mellanox ConnectX architecture is:  mlx4_core is the lower level
PCI driver which register on the PCI id, and protocol specific drivers
are depended on it: mlx4_en - for Ethernet and mlx4_ib for Infiniband.
NIC could have multiple ports which can change their type dynamically.
We use the request_module() call to load the relevant protocol driver
when needed: on loading time or at port type change event.

Signed-off-by: Eyal Perry <eyalpe@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/main.c | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 60c9f4f103fc..179d26709c94 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -42,6 +42,7 @@
 #include <linux/io-mapping.h>
 #include <linux/delay.h>
 #include <linux/netdevice.h>
+#include <linux/kmod.h>
 
 #include <linux/mlx4/device.h>
 #include <linux/mlx4/doorbell.h>
@@ -650,6 +651,27 @@ err_mem:
 	return err;
 }
 
+static void mlx4_request_modules(struct mlx4_dev *dev)
+{
+	int port;
+	int has_ib_port = false;
+	int has_eth_port = false;
+#define EN_DRV_NAME	"mlx4_en"
+#define IB_DRV_NAME	"mlx4_ib"
+
+	for (port = 1; port <= dev->caps.num_ports; port++) {
+		if (dev->caps.port_type[port] == MLX4_PORT_TYPE_IB)
+			has_ib_port = true;
+		else if (dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH)
+			has_eth_port = true;
+	}
+
+	if (has_ib_port)
+		request_module_nowait(IB_DRV_NAME);
+	if (has_eth_port)
+		request_module_nowait(EN_DRV_NAME);
+}
+
 /*
  * Change the port configuration of the device.
  * Every user of this function must hold the port mutex.
@@ -681,6 +703,11 @@ int mlx4_change_port_types(struct mlx4_dev *dev,
 		}
 		mlx4_set_port_mask(dev);
 		err = mlx4_register_device(dev);
+		if (err) {
+			mlx4_err(dev, "Failed to register device\n");
+			goto out;
+		}
+		mlx4_request_modules(dev);
 	}
 
 out:
@@ -2305,6 +2332,8 @@ slave_start:
 	if (err)
 		goto err_port;
 
+	mlx4_request_modules(dev);
+
 	mlx4_sense_init(dev);
 	mlx4_start_sense(dev);
 
-- 
cgit 


From 33235ca458b725bab5367f1e50562965c76af5ca Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 07:24:29 +0200
Subject: isdn: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/isdn/hardware/eicon/divasmain.c | 2 +-
 drivers/isdn/sc/init.c                  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/isdn/hardware/eicon/divasmain.c b/drivers/isdn/hardware/eicon/divasmain.c
index 52377b4bf039..a2e0ed6c9a4d 100644
--- a/drivers/isdn/hardware/eicon/divasmain.c
+++ b/drivers/isdn/hardware/eicon/divasmain.c
@@ -481,7 +481,7 @@ void __inline__ outpp(void __iomem *addr, word p)
 int diva_os_register_irq(void *context, byte irq, const char *name)
 {
 	int result = request_irq(irq, diva_os_irq_wrapper,
-				 IRQF_DISABLED | IRQF_SHARED, name, context);
+				 IRQF_SHARED, name, context);
 	return (result);
 }
 
diff --git a/drivers/isdn/sc/init.c b/drivers/isdn/sc/init.c
index ca997bd4e818..92acc81f844d 100644
--- a/drivers/isdn/sc/init.c
+++ b/drivers/isdn/sc/init.c
@@ -336,7 +336,7 @@ static int __init sc_init(void)
 		 */
 		sc_adapter[cinst]->interrupt = irq[b];
 		if (request_irq(sc_adapter[cinst]->interrupt, interrupt_handler,
-				IRQF_DISABLED, interface->id,
+				0, interface->id,
 				(void *)(unsigned long) cinst))
 		{
 			kfree(sc_adapter[cinst]->channel);
-- 
cgit 


From 78dea8cc4942c6adbcccc8f483463906a078f039 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 08:26:31 +0200
Subject: irda: update comment mentioning IRQF_DISABLED

This patch removes a comment mentioning IRQF_DISABLED,
which is deprecated.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/irda/irda_device.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/net/irda/irda_device.h b/include/net/irda/irda_device.h
index 94c852d47d0f..11417475a6c3 100644
--- a/include/net/irda/irda_device.h
+++ b/include/net/irda/irda_device.h
@@ -162,7 +162,7 @@ typedef struct {
         int irq, irq2;        /* Interrupts used */
         int dma, dma2;        /* DMA channel(s) used */
         int fifo_size;        /* FIFO size */
-        int irqflags;         /* interrupt flags (ie, IRQF_SHARED|IRQF_DISABLED) */
+        int irqflags;         /* interrupt flags (ie, IRQF_SHARED) */
 	int direction;        /* Link direction, used by some FIR drivers */
 	int enabled;          /* Powered on? */
 	int suspended;        /* Suspended by APM */
-- 
cgit 


From 82fbb4f7b47683077e0716474d4f1ce65a2146cb Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 4 Sep 2011 22:04:49 +0200
Subject: ALSA: add DICE driver

As a start point for further development, this is an incomplete driver
for DICE devices:
- only playback (so no clock source except the bus clock)
- only 44.1 kHz
- no MIDI
- recovery after bus reset is slow
- hwdep device is created, but not actually implemented

Contains compilation fixes by Stefan Richter.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 Documentation/ioctl/ioctl-number.txt |    1 +
 include/uapi/sound/Kbuild            |    1 +
 include/uapi/sound/asound.h          |    3 +-
 include/uapi/sound/firewire.h        |   51 ++
 sound/firewire/Kconfig               |   13 +
 sound/firewire/Makefile              |    2 +
 sound/firewire/dice.c                | 1008 ++++++++++++++++++++++++++++++++++
 7 files changed, 1078 insertions(+), 1 deletion(-)
 create mode 100644 include/uapi/sound/firewire.h
 create mode 100644 sound/firewire/dice.c

diff --git a/Documentation/ioctl/ioctl-number.txt b/Documentation/ioctl/ioctl-number.txt
index 2a5f0e14efa3..7cbfa3c4fc3d 100644
--- a/Documentation/ioctl/ioctl-number.txt
+++ b/Documentation/ioctl/ioctl-number.txt
@@ -138,6 +138,7 @@ Code  Seq#(hex)	Include File		Comments
 'H'	C0-DF	net/bluetooth/cmtp/cmtp.h	conflict!
 'H'	C0-DF	net/bluetooth/bnep/bnep.h	conflict!
 'H'	F1	linux/hid-roccat.h	<mailto:erazor_de@users.sourceforge.net>
+'H'	F8-FA	sound/firewire.h
 'I'	all	linux/isdn.h		conflict!
 'I'	00-0F	drivers/isdn/divert/isdn_divert.h	conflict!
 'I'	40-4F	linux/mISDNif.h		conflict!
diff --git a/include/uapi/sound/Kbuild b/include/uapi/sound/Kbuild
index 0f7d279ebde3..a7f27704f980 100644
--- a/include/uapi/sound/Kbuild
+++ b/include/uapi/sound/Kbuild
@@ -5,6 +5,7 @@ header-y += asound_fm.h
 header-y += compress_offload.h
 header-y += compress_params.h
 header-y += emu10k1.h
+header-y += firewire.h
 header-y += hdsp.h
 header-y += hdspm.h
 header-y += sb16_csp.h
diff --git a/include/uapi/sound/asound.h b/include/uapi/sound/asound.h
index 041203f20f6d..9fc6219d3848 100644
--- a/include/uapi/sound/asound.h
+++ b/include/uapi/sound/asound.h
@@ -93,9 +93,10 @@ enum {
 	SNDRV_HWDEP_IFACE_SB_RC,	/* SB Extigy/Audigy2NX remote control */
 	SNDRV_HWDEP_IFACE_HDA,		/* HD-audio */
 	SNDRV_HWDEP_IFACE_USB_STREAM,	/* direct access to usb stream */
+	SNDRV_HWDEP_IFACE_FW_DICE,	/* TC DICE FireWire device */
 
 	/* Don't forget to change the following: */
-	SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_USB_STREAM
+	SNDRV_HWDEP_IFACE_LAST = SNDRV_HWDEP_IFACE_FW_DICE
 };
 
 struct snd_hwdep_info {
diff --git a/include/uapi/sound/firewire.h b/include/uapi/sound/firewire.h
new file mode 100644
index 000000000000..e86131ca49e5
--- /dev/null
+++ b/include/uapi/sound/firewire.h
@@ -0,0 +1,51 @@
+#ifndef UAPI_SOUND_FIREWIRE_H_INCLUDED
+#define UAPI_SOUND_FIREWIRE_H_INCLUDED
+
+#include <linux/ioctl.h>
+
+/* events can be read() from the hwdep device */
+
+#define SNDRV_FIREWIRE_EVENT_LOCK_STATUS	0x000010cc
+#define SNDRV_FIREWIRE_EVENT_DICE_NOTIFICATION	0xd1ce004e
+
+struct snd_firewire_event_common {
+	unsigned int type; /* SNDRV_FIREWIRE_EVENT_xxx */
+};
+
+struct snd_firewire_event_lock_status {
+	unsigned int type;
+	unsigned int status; /* 0/1 = unlocked/locked */
+};
+
+struct snd_firewire_event_dice_notification {
+	unsigned int type;
+	unsigned int notification; /* DICE-specific bits */
+};
+
+union snd_firewire_event {
+	struct snd_firewire_event_common            common;
+	struct snd_firewire_event_lock_status       lock_status;
+	struct snd_firewire_event_dice_notification dice_notification;
+};
+
+
+#define SNDRV_FIREWIRE_IOCTL_GET_INFO _IOR('H', 0xf8, struct snd_firewire_get_info)
+#define SNDRV_FIREWIRE_IOCTL_LOCK      _IO('H', 0xf9)
+#define SNDRV_FIREWIRE_IOCTL_UNLOCK    _IO('H', 0xfa)
+
+#define SNDRV_FIREWIRE_TYPE_DICE	1
+/* Fireworks, AV/C, RME, MOTU, ... */
+
+struct snd_firewire_get_info {
+	unsigned int type; /* SNDRV_FIREWIRE_TYPE_xxx */
+	unsigned int card; /* same as fw_cdev_get_info.card */
+	unsigned char guid[8];
+	char device_name[16]; /* device node in /dev */
+};
+
+/*
+ * SNDRV_FIREWIRE_IOCTL_LOCK prevents the driver from streaming.
+ * Returns -EBUSY if the driver is already streaming.
+ */
+
+#endif
diff --git a/sound/firewire/Kconfig b/sound/firewire/Kconfig
index ea063e1f8722..915330989412 100644
--- a/sound/firewire/Kconfig
+++ b/sound/firewire/Kconfig
@@ -11,6 +11,19 @@ config SND_FIREWIRE_LIB
 	tristate
 	depends on SND_PCM
 
+config SND_DICE
+	tristate "DICE devices (EXPERIMENTAL)"
+	select SND_HWDEP
+	select SND_PCM
+	select SND_FIREWIRE_LIB
+	help
+	  Say Y here to include support for many FireWire audio interfaces
+	  based on the DICE chip family (DICE-II/Jr/Mini) from TC Applied
+	  Technologies.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called snd-dice.
+
 config SND_FIREWIRE_SPEAKERS
 	tristate "FireWire speakers"
 	select SND_PCM
diff --git a/sound/firewire/Makefile b/sound/firewire/Makefile
index 460179df5bb5..509955061d30 100644
--- a/sound/firewire/Makefile
+++ b/sound/firewire/Makefile
@@ -1,10 +1,12 @@
 snd-firewire-lib-objs := lib.o iso-resources.o packets-buffer.o \
 			 fcp.o cmp.o amdtp.o
+snd-dice-objs := dice.o
 snd-firewire-speakers-objs := speakers.o
 snd-isight-objs := isight.o
 snd-scs1x-objs := scs1x.o
 
 obj-$(CONFIG_SND_FIREWIRE_LIB) += snd-firewire-lib.o
+obj-$(CONFIG_SND_DICE) += snd-dice.o
 obj-$(CONFIG_SND_FIREWIRE_SPEAKERS) += snd-firewire-speakers.o
 obj-$(CONFIG_SND_ISIGHT) += snd-isight.o
 obj-$(CONFIG_SND_SCS1X) += snd-scs1x.o
diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
new file mode 100644
index 000000000000..ac71b2b94eec
--- /dev/null
+++ b/sound/firewire/dice.c
@@ -0,0 +1,1008 @@
+/*
+ * TC Applied Technologies Digital Interface Communications Engine driver
+ *
+ * Copyright (c) Clemens Ladisch <clemens@ladisch.de>
+ * Licensed under the terms of the GNU General Public License, version 2.
+ */
+
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/firewire.h>
+#include <linux/firewire-constants.h>
+#include <linux/module.h>
+#include <linux/mod_devicetable.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <sound/control.h>
+#include <sound/core.h>
+#include <sound/hwdep.h>
+#include <sound/initval.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include "amdtp.h"
+#include "iso-resources.h"
+#include "lib.h"
+
+#define DICE_PRIVATE_SPACE		0xffffe0000000uLL
+
+/* offset from DICE_PRIVATE_SPACE; offsets and sizes in quadlets */
+#define DICE_GLOBAL_OFFSET		0x00
+#define DICE_GLOBAL_SIZE		0x04
+#define DICE_TX_OFFSET			0x08
+#define DICE_TX_SIZE			0x0c
+#define DICE_RX_OFFSET			0x10
+#define DICE_RX_SIZE			0x14
+
+/* pointed to by DICE_GLOBAL_OFFSET */
+#define GLOBAL_OWNER			0x000
+#define  OWNER_NO_OWNER			0xffff000000000000uLL
+#define  OWNER_NODE_SHIFT		48
+#define GLOBAL_NOTIFICATION		0x008
+#define  NOTIFY_RX_CFG_CHG		0x00000001
+#define  NOTIFY_TX_CFG_CHG		0x00000002
+#define  NOTIFY_DUP_ISOC		0x00000004
+#define  NOTIFY_BW_ERR			0x00000008
+#define  NOTIFY_LOCK_CHG		0x00000010
+#define  NOTIFY_CLOCK_ACCEPTED		0x00000020
+#define  NOTIFY_INTERFACE_CHG		0x00000040
+#define  NOTIFY_MESSAGE			0x00100000
+#define GLOBAL_NICK_NAME		0x00c
+#define  NICK_NAME_SIZE			64
+#define GLOBAL_CLOCK_SELECT		0x04c
+#define  CLOCK_SOURCE_MASK		0x000000ff
+#define  CLOCK_SOURCE_AES1		0x00000000
+#define  CLOCK_SOURCE_AES2		0x00000001
+#define  CLOCK_SOURCE_AES3		0x00000002
+#define  CLOCK_SOURCE_AES4		0x00000003
+#define  CLOCK_SOURCE_AES_ANY		0x00000004
+#define  CLOCK_SOURCE_ADAT		0x00000005
+#define  CLOCK_SOURCE_TDIF		0x00000006
+#define  CLOCK_SOURCE_WC		0x00000007
+#define  CLOCK_SOURCE_ARX1		0x00000008
+#define  CLOCK_SOURCE_ARX2		0x00000009
+#define  CLOCK_SOURCE_ARX3		0x0000000a
+#define  CLOCK_SOURCE_ARX4		0x0000000b
+#define  CLOCK_SOURCE_INTERNAL		0x0000000c
+#define  CLOCK_RATE_MASK		0x0000ff00
+#define  CLOCK_RATE_32000		0x00000000
+#define  CLOCK_RATE_44100		0x00000100
+#define  CLOCK_RATE_48000		0x00000200
+#define  CLOCK_RATE_88200		0x00000300
+#define  CLOCK_RATE_96000		0x00000400
+#define  CLOCK_RATE_176400		0x00000500
+#define  CLOCK_RATE_192000		0x00000600
+#define  CLOCK_RATE_ANY_LOW		0x00000700
+#define  CLOCK_RATE_ANY_MID		0x00000800
+#define  CLOCK_RATE_ANY_HIGH		0x00000900
+#define  CLOCK_RATE_NONE		0x00000a00
+#define GLOBAL_ENABLE			0x050
+#define  ENABLE				0x00000001
+#define GLOBAL_STATUS			0x054
+#define  STATUS_SOURCE_LOCKED		0x00000001
+#define  STATUS_RATE_CONFLICT		0x00000002
+#define  STATUS_NOMINAL_RATE_MASK	0x0000ff00
+#define GLOBAL_EXTENDED_STATUS		0x058
+#define  EXT_STATUS_AES1_LOCKED		0x00000001
+#define  EXT_STATUS_AES2_LOCKED		0x00000002
+#define  EXT_STATUS_AES3_LOCKED		0x00000004
+#define  EXT_STATUS_AES4_LOCKED		0x00000008
+#define  EXT_STATUS_ADAT_LOCKED		0x00000010
+#define  EXT_STATUS_TDIF_LOCKED		0x00000020
+#define  EXT_STATUS_ARX1_LOCKED		0x00000040
+#define  EXT_STATUS_ARX2_LOCKED		0x00000080
+#define  EXT_STATUS_ARX3_LOCKED		0x00000100
+#define  EXT_STATUS_ARX4_LOCKED		0x00000200
+#define  EXT_STATUS_WC_LOCKED		0x00000400
+#define  EXT_STATUS_AES1_SLIP		0x00010000
+#define  EXT_STATUS_AES2_SLIP		0x00020000
+#define  EXT_STATUS_AES3_SLIP		0x00040000
+#define  EXT_STATUS_AES4_SLIP		0x00080000
+#define  EXT_STATUS_ADAT_SLIP		0x00100000
+#define  EXT_STATUS_TDIF_SLIP		0x00200000
+#define  EXT_STATUS_ARX1_SLIP		0x00400000
+#define  EXT_STATUS_ARX2_SLIP		0x00800000
+#define  EXT_STATUS_ARX3_SLIP		0x01000000
+#define  EXT_STATUS_ARX4_SLIP		0x02000000
+#define  EXT_STATUS_WC_SLIP		0x04000000
+#define GLOBAL_SAMPLE_RATE		0x05c
+#define GLOBAL_VERSION			0x060
+#define GLOBAL_CLOCK_CAPABILITIES	0x064
+#define  CLOCK_CAP_RATE_32000		0x00000001
+#define  CLOCK_CAP_RATE_44100		0x00000002
+#define  CLOCK_CAP_RATE_48000		0x00000004
+#define  CLOCK_CAP_RATE_88200		0x00000008
+#define  CLOCK_CAP_RATE_96000		0x00000010
+#define  CLOCK_CAP_RATE_176400		0x00000020
+#define  CLOCK_CAP_RATE_192000		0x00000040
+#define  CLOCK_CAP_SOURCE_AES1		0x00010000
+#define  CLOCK_CAP_SOURCE_AES2		0x00020000
+#define  CLOCK_CAP_SOURCE_AES3		0x00040000
+#define  CLOCK_CAP_SOURCE_AES4		0x00080000
+#define  CLOCK_CAP_SOURCE_AES_ANY	0x00100000
+#define  CLOCK_CAP_SOURCE_ADAT		0x00200000
+#define  CLOCK_CAP_SOURCE_TDIF		0x00400000
+#define  CLOCK_CAP_SOURCE_WC		0x00800000
+#define  CLOCK_CAP_SOURCE_ARX1		0x01000000
+#define  CLOCK_CAP_SOURCE_ARX2		0x02000000
+#define  CLOCK_CAP_SOURCE_ARX3		0x04000000
+#define  CLOCK_CAP_SOURCE_ARX4		0x08000000
+#define  CLOCK_CAP_SOURCE_INTERNAL	0x10000000
+#define GLOBAL_CLOCK_SOURCE_NAMES	0x068
+#define  CLOCK_SOURCE_NAMES_SIZE	256
+
+/* pointed to by DICE_TX_OFFSET */
+#define TX_NUMBER			0x000
+#define TX_SIZE				0x004
+/* repeated TX_NUMBER times, offset by TX_SIZE quadlets */
+#define TX_ISOCHRONOUS			0x008
+#define TX_NUMBER_AUDIO			0x00c
+#define TX_NUMBER_MIDI			0x010
+#define TX_SPEED			0x014
+#define TX_NAMES			0x018
+#define  TX_NAMES_SIZE			256
+#define TX_AC3_CAPABILITIES		0x118
+#define TX_AC3_ENABLE			0x11c
+
+/* pointed to by DICE_RX_OFFSET */
+#define RX_NUMBER			0x000
+#define RX_SIZE				0x004
+/* repeated RX_NUMBER times, offset by RX_SIZE quadlets */
+#define RX_ISOCHRONOUS			0x008
+#define RX_SEQ_START			0x00c
+#define RX_NUMBER_AUDIO			0x010
+#define RX_NUMBER_MIDI			0x014
+#define RX_NAMES			0x018
+#define  RX_NAMES_SIZE			256
+#define RX_AC3_CAPABILITIES		0x118
+#define RX_AC3_ENABLE			0x11c
+
+
+#define FIRMWARE_LOAD_SPACE		0xffffe0100000uLL
+
+/* offset from FIRMWARE_LOAD_SPACE */
+#define FIRMWARE_VERSION		0x000
+#define FIRMWARE_OPCODE			0x004
+#define  OPCODE_MASK			0x00000fff
+#define  OPCODE_GET_IMAGE_DESC		0x00000000
+#define  OPCODE_DELETE_IMAGE		0x00000001
+#define  OPCODE_CREATE_IMAGE		0x00000002
+#define  OPCODE_UPLOAD			0x00000003
+#define  OPCODE_UPLOAD_STAT		0x00000004
+#define  OPCODE_RESET_IMAGE		0x00000005
+#define  OPCODE_TEST_ACTION		0x00000006
+#define  OPCODE_GET_RUNNING_IMAGE_VINFO	0x0000000a
+#define  OPCODE_EXECUTE			0x80000000
+#define FIRMWARE_RETURN_STATUS		0x008
+#define FIRMWARE_PROGRESS		0x00c
+#define  PROGRESS_CURR_MASK		0x00000fff
+#define  PROGRESS_MAX_MASK		0x00fff000
+#define  PROGRESS_TOUT_MASK		0x0f000000
+#define  PROGRESS_FLAG			0x80000000
+#define FIRMWARE_CAPABILITIES		0x010
+#define  FL_CAP_AUTOERASE		0x00000001
+#define  FL_CAP_PROGRESS		0x00000002
+#define FIRMWARE_DATA			0x02c
+#define  TEST_CMD_POKE			0x00000001
+#define  TEST_CMD_PEEK			0x00000002
+#define  CMD_GET_AVS_CNT		0x00000003
+#define  CMD_CLR_AVS_CNT		0x00000004
+#define  CMD_SET_MODE			0x00000005
+#define  CMD_SET_MIDIBP			0x00000006
+#define  CMD_GET_AVSPHASE		0x00000007
+#define  CMD_ENABLE_BNC_SYNC		0x00000008
+#define  CMD_PULSE_BNC_SYNC		0x00000009
+#define  CMD_EMUL_SLOW_CMD		0x0000000a
+#define FIRMWARE_TEST_DELAY		0xfd8
+#define FIRMWARE_TEST_BUF		0xfdc
+
+
+/* EAP */
+#define EAP_PRIVATE_SPACE		0xffffe0200000uLL
+
+#define EAP_CAPABILITY_OFFSET		0x000
+#define EAP_CAPABILITY_SIZE		0x004
+/* ... */
+
+#define EAP_ROUTER_CAPS			0x000
+#define  ROUTER_EXPOSED			0x00000001
+#define  ROUTER_READ_ONLY		0x00000002
+#define  ROUTER_FLASH			0x00000004
+#define  MAX_ROUTES_MASK		0xffff0000
+#define EAP_MIXER_CAPS			0x004
+#define  MIXER_EXPOSED			0x00000001
+#define  MIXER_READ_ONLY		0x00000002
+#define  MIXER_FLASH			0x00000004
+#define  MIXER_IN_DEV_MASK		0x000000f0
+#define  MIXER_OUT_DEV_MASK		0x00000f00
+#define  MIXER_INPUTS_MASK		0x00ff0000
+#define  MIXER_OUTPUTS_MASK		0xff000000
+#define EAP_GENERAL_CAPS		0x008
+#define  GENERAL_STREAM_CONFIG		0x00000001
+#define  GENERAL_FLASH			0x00000002
+#define  GENERAL_PEAK			0x00000004
+#define  GENERAL_MAX_TX_STREAMS_MASK	0x000000f0
+#define  GENERAL_MAX_RX_STREAMS_MASK	0x00000f00
+#define  GENERAL_STREAM_CONFIG_FLASH	0x00001000
+#define  GENERAL_CHIP_MASK		0x00ff0000
+#define  GENERAL_CHIP_DICE_II		0x00000000
+#define  GENERAL_CHIP_DICE_MINI		0x00010000
+#define  GENERAL_CHIP_DICE_JR		0x00020000
+
+
+struct dice {
+	struct snd_card *card;
+	struct fw_unit *unit;
+	struct mutex mutex;
+	unsigned int global_offset;
+	unsigned int rx_offset;
+	struct fw_address_handler notification_handler;
+	int owner_generation;
+	bool global_enabled;
+	bool stream_running;
+	struct snd_pcm_substream *pcm;
+	struct fw_iso_resources resources;
+	struct amdtp_out_stream stream;
+};
+
+MODULE_DESCRIPTION("DICE driver");
+MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
+MODULE_LICENSE("GPL v2");
+
+static inline u64 global_address(struct dice *dice, unsigned int offset)
+{
+	return DICE_PRIVATE_SPACE + dice->global_offset + offset;
+}
+
+// TODO: rx index
+static inline u64 rx_address(struct dice *dice, unsigned int offset)
+{
+	return DICE_PRIVATE_SPACE + dice->rx_offset + offset;
+}
+
+static int dice_owner_set(struct dice *dice)
+{
+	struct fw_device *device = fw_parent_device(dice->unit);
+	__be64 *buffer;
+	int rcode, err, errors = 0;
+
+	buffer = kmalloc(2 * 8, GFP_KERNEL);
+	if (!buffer)
+		return -ENOMEM;
+
+	for (;;) {
+		buffer[0] = cpu_to_be64(OWNER_NO_OWNER);
+		buffer[1] = cpu_to_be64(
+			((u64)device->card->node_id << OWNER_NODE_SHIFT) |
+			dice->notification_handler.offset);
+
+		dice->owner_generation = device->generation;
+		smp_rmb(); /* node_id vs. generation */
+		rcode = fw_run_transaction(device->card,
+					   TCODE_LOCK_COMPARE_SWAP,
+					   device->node_id,
+					   dice->owner_generation,
+					   device->max_speed,
+					   global_address(dice, GLOBAL_OWNER),
+					   buffer, 2 * 8);
+
+		if (rcode == RCODE_COMPLETE) {
+			if (buffer[0] == cpu_to_be64(OWNER_NO_OWNER)) {
+				err = 0;
+			} else {
+				dev_err(&dice->unit->device,
+					"device is already in use\n");
+				err = -EBUSY;
+			}
+			break;
+		}
+		if (rcode_is_permanent_error(rcode) || ++errors >= 3) {
+			dev_err(&dice->unit->device,
+				"setting device owner failed: %s\n",
+				fw_rcode_string(rcode));
+			err = -EIO;
+			break;
+		}
+		msleep(20);
+	}
+
+	kfree(buffer);
+
+	return err;
+}
+
+static int dice_owner_update(struct dice *dice)
+{
+	struct fw_device *device = fw_parent_device(dice->unit);
+	__be64 *buffer;
+	int rcode, err, errors = 0;
+
+	if (dice->owner_generation == -1)
+		return 0;
+
+	buffer = kmalloc(2 * 8, GFP_KERNEL);
+	if (!buffer)
+		return -ENOMEM;
+
+	for (;;) {
+		buffer[0] = cpu_to_be64(OWNER_NO_OWNER);
+		buffer[1] = cpu_to_be64(
+			((u64)device->card->node_id << OWNER_NODE_SHIFT) |
+			dice->notification_handler.offset);
+
+		dice->owner_generation = device->generation;
+		smp_rmb(); /* node_id vs. generation */
+		rcode = fw_run_transaction(device->card,
+					   TCODE_LOCK_COMPARE_SWAP,
+					   device->node_id,
+					   dice->owner_generation,
+					   device->max_speed,
+					   global_address(dice, GLOBAL_OWNER),
+					   buffer, 2 * 8);
+
+		if (rcode == RCODE_COMPLETE) {
+			if (buffer[0] == cpu_to_be64(OWNER_NO_OWNER)) {
+				err = 0;
+			} else {
+				dev_err(&dice->unit->device,
+					"device is already in use\n");
+				err = -EBUSY;
+			}
+			break;
+		}
+		if (rcode == RCODE_GENERATION) {
+			err = 0; /* try again later */
+			break;
+		}
+		if (rcode_is_permanent_error(rcode) || ++errors >= 3) {
+			dev_err(&dice->unit->device,
+				"setting device owner failed: %s\n",
+				fw_rcode_string(rcode));
+			err = -EIO;
+			break;
+		}
+		msleep(20);
+	}
+
+	kfree(buffer);
+
+	if (err < 0)
+		dice->owner_generation = -1;
+
+	return err;
+}
+
+static void dice_owner_clear(struct dice *dice)
+{
+	struct fw_device *device = fw_parent_device(dice->unit);
+	__be64 *buffer;
+	int rcode, errors = 0;
+
+	buffer = kmalloc(2 * 8, GFP_KERNEL);
+	if (!buffer)
+		return;
+
+	for (;;) {
+		buffer[0] = cpu_to_be64(
+			((u64)device->card->node_id << OWNER_NODE_SHIFT) |
+			dice->notification_handler.offset);
+		buffer[1] = cpu_to_be64(OWNER_NO_OWNER);
+
+		rcode = fw_run_transaction(device->card,
+					   TCODE_LOCK_COMPARE_SWAP,
+					   device->node_id,
+					   dice->owner_generation,
+					   device->max_speed,
+					   global_address(dice, GLOBAL_OWNER),
+					   buffer, 2 * 8);
+
+		if (rcode == RCODE_COMPLETE)
+			break;
+		if (rcode == RCODE_GENERATION)
+			break;
+		if (rcode_is_permanent_error(rcode) || ++errors >= 3) {
+			dev_err(&dice->unit->device,
+				"clearing device owner failed: %s\n",
+				fw_rcode_string(rcode));
+			break;
+		}
+		msleep(20);
+	}
+
+	kfree(buffer);
+
+	dice->owner_generation = -1;
+}
+
+static int dice_enable_set(struct dice *dice)
+{
+	struct fw_device *device = fw_parent_device(dice->unit);
+	__be32 value;
+	int rcode, err, errors = 0;
+
+	value = cpu_to_be32(ENABLE);
+	for (;;) {
+		rcode = fw_run_transaction(device->card,
+					   TCODE_WRITE_QUADLET_REQUEST,
+					   device->node_id,
+					   dice->owner_generation,
+					   device->max_speed,
+					   global_address(dice, GLOBAL_ENABLE),
+					   &value, 4);
+		if (rcode == RCODE_COMPLETE) {
+			dice->global_enabled = true;
+			err = 0;
+			break;
+		}
+		if (rcode == RCODE_GENERATION) {
+			err = -EAGAIN;
+			break;
+		}
+		if (rcode_is_permanent_error(rcode) || ++errors >= 3) {
+			dev_err(&dice->unit->device,
+				"device enabling failed: %s\n",
+				fw_rcode_string(rcode));
+			err = -EIO;
+			break;
+		}
+		msleep(20);
+	}
+
+	return err;
+}
+
+static void dice_enable_clear(struct dice *dice)
+{
+	struct fw_device *device = fw_parent_device(dice->unit);
+	__be32 value;
+	int rcode, errors = 0;
+
+	value = 0;
+	for (;;) {
+		rcode = fw_run_transaction(device->card,
+					   TCODE_WRITE_QUADLET_REQUEST,
+					   device->node_id,
+					   dice->owner_generation,
+					   device->max_speed,
+					   global_address(dice, GLOBAL_ENABLE),
+					   &value, 4);
+		if (rcode == RCODE_COMPLETE ||
+		    rcode == RCODE_GENERATION)
+			break;
+		if (rcode_is_permanent_error(rcode) || ++errors >= 3) {
+			dev_err(&dice->unit->device,
+				"device disabling failed: %s\n",
+				fw_rcode_string(rcode));
+			break;
+		}
+		msleep(20);
+	}
+	dice->global_enabled = false;
+}
+
+static void dice_notification(struct fw_card *card, struct fw_request *request,
+			      int tcode, int destination, int source,
+			      int generation, unsigned long long offset,
+			      void *data, size_t length, void *callback_data)
+{
+	struct dice *dice = callback_data;
+
+	if (tcode != TCODE_WRITE_QUADLET_REQUEST) {
+		fw_send_response(card, request, RCODE_TYPE_ERROR);
+		return;
+	}
+	if ((offset & 3) != 0) {
+		fw_send_response(card, request, RCODE_ADDRESS_ERROR);
+		return;
+	}
+	dev_info(&dice->unit->device,
+		 "notification: %08x\n", be32_to_cpup(data));
+	fw_send_response(card, request, RCODE_COMPLETE);
+}
+
+static int dice_open(struct snd_pcm_substream *substream)
+{
+	static const struct snd_pcm_hardware hardware = {
+		.info = SNDRV_PCM_INFO_MMAP |
+			SNDRV_PCM_INFO_MMAP_VALID |
+			SNDRV_PCM_INFO_BATCH |
+			SNDRV_PCM_INFO_INTERLEAVED |
+			SNDRV_PCM_INFO_BLOCK_TRANSFER,
+		.formats = AMDTP_OUT_PCM_FORMAT_BITS,
+		.rates = SNDRV_PCM_RATE_44100,
+		.rate_min = 44100,
+		.rate_max = 44100,
+		.buffer_bytes_max = 16 * 1024 * 1024,
+		.period_bytes_min = 1,
+		.period_bytes_max = UINT_MAX,
+		.periods_min = 1,
+		.periods_max = UINT_MAX,
+	};
+	struct dice *dice = substream->private_data;
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	__be32 number_audio, number_midi;
+	int err;
+
+	err = snd_fw_transaction(dice->unit, TCODE_READ_QUADLET_REQUEST,
+				 rx_address(dice, RX_NUMBER_AUDIO),
+				 &number_audio, 4);
+	if (err < 0)
+		return err;
+	err = snd_fw_transaction(dice->unit, TCODE_READ_QUADLET_REQUEST,
+				 rx_address(dice, RX_NUMBER_MIDI),
+				 &number_midi, 4);
+	if (err < 0)
+		return err;
+
+	runtime->hw = hardware;
+	runtime->hw.channels_min = be32_to_cpu(number_audio);
+	runtime->hw.channels_max = be32_to_cpu(number_audio);
+
+	amdtp_out_stream_set_rate(&dice->stream, 44100);
+	amdtp_out_stream_set_pcm(&dice->stream, be32_to_cpu(number_audio));
+	amdtp_out_stream_set_midi(&dice->stream, be32_to_cpu(number_midi));
+
+	err = snd_pcm_hw_constraint_minmax(runtime,
+					   SNDRV_PCM_HW_PARAM_PERIOD_TIME,
+					   5000, 8192000);
+	if (err < 0)
+		return err;
+
+	err = snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
+	if (err < 0)
+		return err;
+
+	return 0;
+}
+
+static int dice_close(struct snd_pcm_substream *substream)
+{
+	return 0;
+}
+
+static void dice_stop_stream(struct dice *dice)
+{
+	__be32 channel;
+
+	if (dice->stream_running) {
+		dice_enable_clear(dice);
+
+		amdtp_out_stream_stop(&dice->stream);
+
+		channel = cpu_to_be32((u32)-1);
+		snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST,
+				   rx_address(dice, RX_ISOCHRONOUS),
+				   &channel, 4);
+
+		fw_iso_resources_free(&dice->resources);
+
+		dice->stream_running = false;
+	}
+}
+
+static int dice_hw_params(struct snd_pcm_substream *substream,
+			  struct snd_pcm_hw_params *hw_params)
+{
+	struct dice *dice = substream->private_data;
+	int err;
+
+	mutex_lock(&dice->mutex);
+	dice_stop_stream(dice);
+	mutex_unlock(&dice->mutex);
+
+	err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
+					       params_buffer_bytes(hw_params));
+	if (err < 0)
+		goto error;
+
+	amdtp_out_stream_set_pcm_format(&dice->stream,
+					params_format(hw_params));
+
+	return 0;
+
+error:
+	return err;
+}
+
+static int dice_hw_free(struct snd_pcm_substream *substream)
+{
+	struct dice *dice = substream->private_data;
+
+	mutex_lock(&dice->mutex);
+	dice_stop_stream(dice);
+	mutex_unlock(&dice->mutex);
+
+	return snd_pcm_lib_free_vmalloc_buffer(substream);
+}
+
+static int dice_prepare(struct snd_pcm_substream *substream)
+{
+	struct dice *dice = substream->private_data;
+	struct fw_device *device = fw_parent_device(dice->unit);
+	__be32 channel;
+	int err;
+
+	mutex_lock(&dice->mutex);
+
+	if (amdtp_out_streaming_error(&dice->stream))
+		dice_stop_stream(dice);
+
+	if (!dice->stream_running) {
+		err = fw_iso_resources_allocate(&dice->resources,
+				amdtp_out_stream_get_max_payload(&dice->stream),
+				device->max_speed);
+		if (err < 0)
+			goto error;
+
+		//TODO: RX_SEQ_START
+		channel = cpu_to_be32(dice->resources.channel);
+		err = snd_fw_transaction(dice->unit,
+					 TCODE_WRITE_QUADLET_REQUEST,
+					 rx_address(dice, RX_ISOCHRONOUS),
+					 &channel, 4);
+		if (err < 0)
+			goto err_resources;
+
+		err = amdtp_out_stream_start(&dice->stream,
+					     dice->resources.channel,
+					     device->max_speed);
+		if (err < 0)
+			goto err_resources;
+
+		err = dice_enable_set(dice);
+		if (err < 0)
+			goto err_stream;
+
+		dice->stream_running = true;
+	}
+
+	mutex_unlock(&dice->mutex);
+
+	amdtp_out_stream_pcm_prepare(&dice->stream);
+
+	return 0;
+
+err_stream:
+	amdtp_out_stream_stop(&dice->stream);
+err_resources:
+	fw_iso_resources_free(&dice->resources);
+error:
+	mutex_unlock(&dice->mutex);
+
+	return err;
+}
+
+static int dice_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+	struct dice *dice = substream->private_data;
+	struct snd_pcm_substream *pcm;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		pcm = substream;
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+		pcm = NULL;
+		break;
+	default:
+		return -EINVAL;
+	}
+	amdtp_out_stream_pcm_trigger(&dice->stream, pcm);
+
+	return 0;
+}
+
+static snd_pcm_uframes_t dice_pointer(struct snd_pcm_substream *substream)
+{
+	struct dice *dice = substream->private_data;
+
+	return amdtp_out_stream_pcm_pointer(&dice->stream);
+}
+
+static int dice_create_pcm(struct dice *dice)
+{
+	static struct snd_pcm_ops ops = {
+		.open      = dice_open,
+		.close     = dice_close,
+		.ioctl     = snd_pcm_lib_ioctl,
+		.hw_params = dice_hw_params,
+		.hw_free   = dice_hw_free,
+		.prepare   = dice_prepare,
+		.trigger   = dice_trigger,
+		.pointer   = dice_pointer,
+		.page      = snd_pcm_lib_get_vmalloc_page,
+		.mmap      = snd_pcm_lib_mmap_vmalloc,
+	};
+	__be32 clock;
+	struct snd_pcm *pcm;
+	int err;
+
+	clock = cpu_to_be32(CLOCK_SOURCE_ARX1 | CLOCK_RATE_44100);
+	err = snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST,
+				 global_address(dice, GLOBAL_CLOCK_SELECT),
+				 &clock, 4);
+	if (err < 0)
+		return err;
+
+	err = snd_pcm_new(dice->card, "DICE", 0, 1, 0, &pcm);
+	if (err < 0)
+		return err;
+	pcm->private_data = dice;
+	strcpy(pcm->name, dice->card->shortname);
+	dice->pcm = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
+	dice->pcm->ops = &ops;
+
+	return 0;
+}
+
+// TODO: implement these
+
+static long dice_hwdep_read(struct snd_hwdep *hwdep, char __user *buf,
+			    long count, loff_t *offset)
+{
+	return -EIO;
+}
+
+static int dice_hwdep_open(struct snd_hwdep *hwdep, struct file *file)
+{
+	return -EIO;
+}
+
+static int dice_hwdep_release(struct snd_hwdep *hwdep, struct file *file)
+{
+	return 0;
+}
+
+static unsigned int dice_hwdep_poll(struct snd_hwdep *hwdep, struct file *file,
+				    poll_table *wait)
+{
+	return POLLERR | POLLHUP;
+}
+
+static int dice_hwdep_ioctl(struct snd_hwdep *hwdep, struct file *file,
+			    unsigned int cmd, unsigned long arg)
+{
+	return -EIO;
+}
+
+static int dice_create_hwdep(struct dice *dice)
+{
+	static const struct snd_hwdep_ops ops = {
+		.read         = dice_hwdep_read,
+		.open         = dice_hwdep_open,
+		.release      = dice_hwdep_release,
+		.poll         = dice_hwdep_poll,
+		.ioctl        = dice_hwdep_ioctl,
+		.ioctl_compat = dice_hwdep_ioctl,
+	};
+	struct snd_hwdep *hwdep;
+	int err;
+
+	err = snd_hwdep_new(dice->card, "DICE", 0, &hwdep);
+	if (err < 0)
+		return err;
+	strcpy(hwdep->name, "DICE");
+	hwdep->iface = SNDRV_HWDEP_IFACE_FW_DICE;
+	hwdep->ops = ops;
+	hwdep->private_data = dice;
+	hwdep->exclusive = true;
+
+	return 0;
+}
+
+static void dice_card_free(struct snd_card *card)
+{
+	struct dice *dice = card->private_data;
+
+	amdtp_out_stream_destroy(&dice->stream);
+	fw_core_remove_address_handler(&dice->notification_handler);
+	mutex_destroy(&dice->mutex);
+}
+
+static int dice_init_offsets(struct dice *dice)
+{
+	__be32 pointers[6];
+	unsigned int global_size, rx_size;
+	int err;
+
+	err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST,
+				 DICE_PRIVATE_SPACE, &pointers, 6 * 4);
+	if (err < 0)
+		return err;
+
+	dice->global_offset = be32_to_cpu(pointers[0]) * 4;
+	global_size = be32_to_cpu(pointers[1]);
+	dice->rx_offset = be32_to_cpu(pointers[4]) * 4;
+	rx_size = be32_to_cpu(pointers[5]);
+
+	/* some sanity checks to ensure that we actually have a DICE */
+	if (dice->global_offset < 10 * 4 || global_size < 0x168 / 4 ||
+	    dice->rx_offset < 10 * 4 || rx_size < 0x120 / 4) {
+		dev_err(&dice->unit->device, "invalid register pointers\n");
+		return -ENXIO;
+	}
+
+	return 0;
+}
+
+static void dice_card_strings(struct dice *dice)
+{
+	struct snd_card *card = dice->card;
+	struct fw_device *dev = fw_parent_device(dice->unit);
+	char vendor[32], model[32];
+	unsigned int i;
+	int err;
+
+	strcpy(card->driver, "DICE");
+
+	strcpy(card->shortname, "DICE");
+	BUILD_BUG_ON(NICK_NAME_SIZE < sizeof(card->shortname));
+	err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST,
+				 global_address(dice, GLOBAL_NICK_NAME),
+				 card->shortname, sizeof(card->shortname));
+	if (err >= 0) {
+		/* DICE strings are returned in "always-wrong" endianness */
+		BUILD_BUG_ON(sizeof(card->shortname) % 4 != 0);
+		for (i = 0; i < sizeof(card->shortname); i += 4)
+			swab32s((u32 *)&card->shortname[i]);
+		card->shortname[sizeof(card->shortname) - 1] = '\0';
+	}
+
+	strcpy(vendor, "?");
+	fw_csr_string(dev->config_rom + 5, CSR_VENDOR, vendor, sizeof(vendor));
+	strcpy(model, "?");
+	fw_csr_string(dice->unit->directory, CSR_MODEL, model, sizeof(model));
+	snprintf(card->longname, sizeof(card->longname),
+		 "%s %s, GUID %08x%08x at %s, S%d",
+		 vendor, model, dev->config_rom[3], dev->config_rom[4],
+		 dev_name(&dice->unit->device), 100 << dev->max_speed);
+
+	strcpy(card->mixername, "DICE");
+}
+
+static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id)
+{
+	struct snd_card *card;
+	struct dice *dice;
+	int err;
+
+	err = snd_card_create(-1, NULL, THIS_MODULE, sizeof(*dice), &card);
+	if (err < 0)
+		return err;
+	snd_card_set_dev(card, &unit->device);
+
+	dice = card->private_data;
+	dice->card = card;
+	mutex_init(&dice->mutex);
+	dice->unit = unit;
+
+	err = dice_init_offsets(dice);
+	if (err < 0)
+		goto err_mutex;
+
+	dice->notification_handler.length = 4;
+	dice->notification_handler.address_callback = dice_notification;
+	dice->notification_handler.callback_data = dice;
+	err = fw_core_add_address_handler(&dice->notification_handler,
+					  &fw_high_memory_region);
+	if (err < 0)
+		goto err_mutex;
+
+	err = fw_iso_resources_init(&dice->resources, unit);
+	if (err < 0)
+		goto err_notification_handler;
+	dice->resources.channels_mask = 0x00000000ffffffffuLL;
+
+	err = amdtp_out_stream_init(&dice->stream, unit, CIP_NONBLOCKING);
+	if (err < 0)
+		goto err_resources;
+
+	err = dice_owner_set(dice);
+	if (err < 0)
+		goto err_stream;
+
+	card->private_free = dice_card_free;
+
+	dice_card_strings(dice);
+
+	err = dice_create_pcm(dice);
+	if (err < 0)
+		goto error;
+
+	err = dice_create_hwdep(dice);
+	if (err < 0)
+		goto error;
+
+	err = snd_card_register(card);
+	if (err < 0)
+		goto error;
+
+	dev_set_drvdata(&unit->device, dice);
+
+	return 0;
+
+err_stream:
+	amdtp_out_stream_destroy(&dice->stream);
+err_resources:
+	fw_iso_resources_destroy(&dice->resources);
+err_notification_handler:
+	fw_core_remove_address_handler(&dice->notification_handler);
+err_mutex:
+	mutex_destroy(&dice->mutex);
+error:
+	snd_card_free(card);
+	return err;
+}
+
+static void dice_remove(struct fw_unit *unit)
+{
+	struct dice *dice = dev_get_drvdata(&unit->device);
+
+	snd_card_disconnect(dice->card);
+
+	mutex_lock(&dice->mutex);
+	amdtp_out_stream_pcm_abort(&dice->stream);
+	dice_stop_stream(dice);
+	dice_owner_clear(dice);
+	mutex_unlock(&dice->mutex);
+
+	snd_card_free_when_closed(dice->card);
+}
+
+static void dice_bus_reset(struct fw_unit *unit)
+{
+	struct dice *dice = dev_get_drvdata(&unit->device);
+
+	mutex_lock(&dice->mutex);
+	/*
+	 * XXX is the following true?
+	 * On a bus reset, the DICE firmware disables streaming and then goes
+	 * off contemplating its own navel for hundreds of milliseconds before
+	 * it can react to any of our attempts to reenable streaming.  This
+	 * means that we lose synchronization anyway, so we force our streams
+	 * to stop so that the application can restart them in an orderly
+	 * manner.
+	 */
+	dice_owner_update(dice);
+	amdtp_out_stream_pcm_abort(&dice->stream);
+	dice_stop_stream(dice);
+	mutex_unlock(&dice->mutex);
+}
+
+#define TC_OUI		0x000166
+#define DICE_INTERFACE	0x000001
+
+static const struct ieee1394_device_id dice_id_table[] = {
+	{
+		.match_flags  = IEEE1394_MATCH_SPECIFIER_ID |
+				IEEE1394_MATCH_VERSION,
+		.specifier_id = TC_OUI,
+		.version      = DICE_INTERFACE,
+	},
+	{ }
+};
+MODULE_DEVICE_TABLE(ieee1394, dice_id_table);
+
+static struct fw_driver dice_driver = {
+	.driver   = {
+		.owner	= THIS_MODULE,
+		.name	= KBUILD_MODNAME,
+		.bus	= &fw_bus_type,
+	},
+	.probe    = dice_probe,
+	.update   = dice_bus_reset,
+	.remove   = dice_remove,
+	.id_table = dice_id_table,
+};
+
+static int __init alsa_dice_init(void)
+{
+	return driver_register(&dice_driver.driver);
+}
+
+static void __exit alsa_dice_exit(void)
+{
+	driver_unregister(&dice_driver.driver);
+}
+
+module_init(alsa_dice_init);
+module_exit(alsa_dice_exit);
-- 
cgit 


From 47e91f56008b43e1365e8d1d4a6813fe8a33b6f6 Mon Sep 17 00:00:00 2001
From: dingtianhong <dingtianhong@huawei.com>
Date: Tue, 15 Oct 2013 16:28:35 +0800
Subject: bonding: use RCU protection for 3ad xmit path

The commit 278b20837511776dc9d5f6ee1c7fabd5479838bb
(bonding: initial RCU conversion) has convert the roundrobin,
active-backup, broadcast and xor xmit path to rcu protection,
the performance will be better for these mode, so this time,
convert xmit path for 3ad mode.

Suggested-by: Nikolay Aleksandrov <nikolay@redhat.com>
Suggested-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: Wang Yufen <wangyufen@huawei.com>
Cc: Nikolay Aleksandrov <nikolay@redhat.com>
Cc: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_3ad.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index ea3e64e22e22..187b1b7772ef 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -2344,7 +2344,7 @@ int __bond_3ad_get_active_agg_info(struct bonding *bond,
 	struct slave *slave;
 	struct port *port;
 
-	bond_for_each_slave(bond, slave, iter) {
+	bond_for_each_slave_rcu(bond, slave, iter) {
 		port = &(SLAVE_AD_INFO(slave).port);
 		if (port->aggregator && port->aggregator->is_active) {
 			aggregator = port->aggregator;
@@ -2369,9 +2369,9 @@ int bond_3ad_get_active_agg_info(struct bonding *bond, struct ad_info *ad_info)
 {
 	int ret;
 
-	read_lock(&bond->lock);
+	rcu_read_lock();
 	ret = __bond_3ad_get_active_agg_info(bond, ad_info);
-	read_unlock(&bond->lock);
+	rcu_read_unlock();
 
 	return ret;
 }
@@ -2388,7 +2388,6 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev)
 	int res = 1;
 	int agg_id;
 
-	read_lock(&bond->lock);
 	if (__bond_3ad_get_active_agg_info(bond, &ad_info)) {
 		pr_debug("%s: Error: __bond_3ad_get_active_agg_info failed\n",
 			 dev->name);
@@ -2406,7 +2405,7 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev)
 	slave_agg_no = bond_xmit_hash(bond, skb, slaves_in_agg);
 	first_ok_slave = NULL;
 
-	bond_for_each_slave(bond, slave, iter) {
+	bond_for_each_slave_rcu(bond, slave, iter) {
 		agg = SLAVE_AD_INFO(slave).port.aggregator;
 		if (!agg || agg->aggregator_identifier != agg_id)
 			continue;
@@ -2436,7 +2435,6 @@ int bond_3ad_xmit_xor(struct sk_buff *skb, struct net_device *dev)
 		res = bond_dev_queue_xmit(bond, skb, first_ok_slave->dev);
 
 out:
-	read_unlock(&bond->lock);
 	if (res) {
 		/* no suitable interface, frame not sent */
 		kfree_skb(skb);
-- 
cgit 


From 28c719260da032c999ecb4b73ba56311c635ef4e Mon Sep 17 00:00:00 2001
From: dingtianhong <dingtianhong@huawei.com>
Date: Tue, 15 Oct 2013 16:28:39 +0800
Subject: bonding: use RCU protection for alb xmit path

The commit 278b20837511776dc9d5f6ee1c7fabd5479838bb
(bonding: initial RCU conversion) has convert the roundrobin,
active-backup, broadcast and xor xmit path to rcu protection,
the performance will be better for these mode, so this time,
convert xmit path for alb mode.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Cc: Nikolay Aleksandrov <nikolay@redhat.com>
Cc: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_alb.c | 58 +++++++++++++++++++++++++++++++-----------
 drivers/net/bonding/bonding.h  | 14 ++++++++++
 2 files changed, 57 insertions(+), 15 deletions(-)

diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index 576cceae026a..02872405d35d 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -230,7 +230,7 @@ static struct slave *tlb_get_least_loaded_slave(struct bonding *bond)
 	max_gap = LLONG_MIN;
 
 	/* Find the slave with the largest gap */
-	bond_for_each_slave(bond, slave, iter) {
+	bond_for_each_slave_rcu(bond, slave, iter) {
 		if (SLAVE_IS_OK(slave)) {
 			long long gap = compute_gap(slave);
 
@@ -412,6 +412,39 @@ static struct slave *rlb_next_rx_slave(struct bonding *bond)
 	return rx_slave;
 }
 
+/* Caller must hold rcu_read_lock() for read */
+static struct slave *__rlb_next_rx_slave(struct bonding *bond)
+{
+	struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond));
+	struct slave *before = NULL, *rx_slave = NULL, *slave;
+	struct list_head *iter;
+	bool found = false;
+
+	bond_for_each_slave_rcu(bond, slave, iter) {
+		if (!SLAVE_IS_OK(slave))
+			continue;
+		if (!found) {
+			if (!before || before->speed < slave->speed)
+				before = slave;
+		} else {
+			if (!rx_slave || rx_slave->speed < slave->speed)
+				rx_slave = slave;
+		}
+		if (slave == bond_info->rx_slave)
+			found = true;
+	}
+	/* we didn't find anything after the current or we have something
+	 * better before and up to the current slave
+	 */
+	if (!rx_slave || (before && rx_slave->speed < before->speed))
+		rx_slave = before;
+
+	if (rx_slave)
+		bond_info->rx_slave = rx_slave;
+
+	return rx_slave;
+}
+
 /* teach the switch the mac of a disabled slave
  * on the primary for fault tolerance
  *
@@ -628,12 +661,14 @@ static struct slave *rlb_choose_channel(struct sk_buff *skb, struct bonding *bon
 {
 	struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond));
 	struct arp_pkt *arp = arp_pkt(skb);
-	struct slave *assigned_slave;
+	struct slave *assigned_slave, *curr_active_slave;
 	struct rlb_client_info *client_info;
 	u32 hash_index = 0;
 
 	_lock_rx_hashtbl(bond);
 
+	curr_active_slave = rcu_dereference(bond->curr_active_slave);
+
 	hash_index = _simple_hash((u8 *)&arp->ip_dst, sizeof(arp->ip_dst));
 	client_info = &(bond_info->rx_hashtbl[hash_index]);
 
@@ -658,14 +693,14 @@ static struct slave *rlb_choose_channel(struct sk_buff *skb, struct bonding *bon
 			 * that the new client can be assigned to this entry.
 			 */
 			if (bond->curr_active_slave &&
-			    client_info->slave != bond->curr_active_slave) {
-				client_info->slave = bond->curr_active_slave;
+			    client_info->slave != curr_active_slave) {
+				client_info->slave = curr_active_slave;
 				rlb_update_client(client_info);
 			}
 		}
 	}
 	/* assign a new slave */
-	assigned_slave = rlb_next_rx_slave(bond);
+	assigned_slave = __rlb_next_rx_slave(bond);
 
 	if (assigned_slave) {
 		if (!(client_info->assigned &&
@@ -728,7 +763,7 @@ static struct slave *rlb_arp_xmit(struct sk_buff *skb, struct bonding *bond)
 	/* Don't modify or load balance ARPs that do not originate locally
 	 * (e.g.,arrive via a bridge).
 	 */
-	if (!bond_slave_has_mac(bond, arp->mac_src))
+	if (!bond_slave_has_mac_rcu(bond, arp->mac_src))
 		return NULL;
 
 	if (arp->op_code == htons(ARPOP_REPLY)) {
@@ -1343,11 +1378,6 @@ int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev)
 	skb_reset_mac_header(skb);
 	eth_data = eth_hdr(skb);
 
-	/* make sure that the curr_active_slave do not change during tx
-	 */
-	read_lock(&bond->lock);
-	read_lock(&bond->curr_slave_lock);
-
 	switch (ntohs(skb->protocol)) {
 	case ETH_P_IP: {
 		const struct iphdr *iph = ip_hdr(skb);
@@ -1429,12 +1459,12 @@ int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev)
 
 	if (!tx_slave) {
 		/* unbalanced or unassigned, send through primary */
-		tx_slave = bond->curr_active_slave;
+		tx_slave = rcu_dereference(bond->curr_active_slave);
 		bond_info->unbalanced_load += skb->len;
 	}
 
 	if (tx_slave && SLAVE_IS_OK(tx_slave)) {
-		if (tx_slave != bond->curr_active_slave) {
+		if (tx_slave != rcu_dereference(bond->curr_active_slave)) {
 			memcpy(eth_data->h_source,
 			       tx_slave->dev->dev_addr,
 			       ETH_ALEN);
@@ -1449,8 +1479,6 @@ int bond_alb_xmit(struct sk_buff *skb, struct net_device *bond_dev)
 		}
 	}
 
-	read_unlock(&bond->curr_slave_lock);
-	read_unlock(&bond->lock);
 	if (res) {
 		/* no suitable interface, frame not sent */
 		kfree_skb(skb);
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 0bd04fbda8e9..bb5c731e2560 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -464,6 +464,20 @@ static inline struct slave *bond_slave_has_mac(struct bonding *bond,
 	return NULL;
 }
 
+/* Caller must hold rcu_read_lock() for read */
+static inline struct slave *bond_slave_has_mac_rcu(struct bonding *bond,
+					       const u8 *mac)
+{
+	struct list_head *iter;
+	struct slave *tmp;
+
+	bond_for_each_slave_rcu(bond, tmp, iter)
+		if (ether_addr_equal_64bits(mac, tmp->dev->dev_addr))
+			return tmp;
+
+	return NULL;
+}
+
 /* Check if the ip is present in arp ip list, or first free slot if ip == 0
  * Returns -1 if not found, index if found
  */
-- 
cgit 


From 4d1ae5fb752b2504cf2c3d79abdfb410a09ad928 Mon Sep 17 00:00:00 2001
From: dingtianhong <dingtianhong@huawei.com>
Date: Tue, 15 Oct 2013 16:28:42 +0800
Subject: bonding: add rtnl lock and remove read lock for bond sysfs

The bond_for_each_slave() will not be protected by read_lock(),
only protected by rtnl_lock(), so need to replace read_lock()
with rtnl_lock().

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_sysfs.c | 30 +++++++++++++++++-------------
 1 file changed, 17 insertions(+), 13 deletions(-)

diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index e9249527e7e7..03bed0ca935e 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -179,7 +179,9 @@ static ssize_t bonding_show_slaves(struct device *d,
 	struct slave *slave;
 	int res = 0;
 
-	read_lock(&bond->lock);
+	if (!rtnl_trylock())
+		return restart_syscall();
+
 	bond_for_each_slave(bond, slave, iter) {
 		if (res > (PAGE_SIZE - IFNAMSIZ)) {
 			/* not enough space for another interface name */
@@ -190,7 +192,9 @@ static ssize_t bonding_show_slaves(struct device *d,
 		}
 		res += sprintf(buf + res, "%s ", slave->dev->name);
 	}
-	read_unlock(&bond->lock);
+
+	rtnl_unlock();
+
 	if (res)
 		buf[res-1] = '\n'; /* eat the leftover space */
 
@@ -626,6 +630,9 @@ static ssize_t bonding_store_arp_targets(struct device *d,
 	unsigned long *targets_rx;
 	int ind, i, j, ret = -EINVAL;
 
+	if (!rtnl_trylock())
+		return restart_syscall();
+
 	targets = bond->params.arp_targets;
 	newtarget = in_aton(buf + 1);
 	/* look for adds */
@@ -699,6 +706,7 @@ static ssize_t bonding_store_arp_targets(struct device *d,
 
 	ret = count;
 out:
+	rtnl_unlock();
 	return ret;
 }
 static DEVICE_ATTR(arp_ip_target, S_IRUGO | S_IWUSR , bonding_show_arp_targets, bonding_store_arp_targets);
@@ -1467,7 +1475,6 @@ static ssize_t bonding_show_queue_id(struct device *d,
 	if (!rtnl_trylock())
 		return restart_syscall();
 
-	read_lock(&bond->lock);
 	bond_for_each_slave(bond, slave, iter) {
 		if (res > (PAGE_SIZE - IFNAMSIZ - 6)) {
 			/* not enough space for another interface_name:queue_id pair */
@@ -1479,9 +1486,9 @@ static ssize_t bonding_show_queue_id(struct device *d,
 		res += sprintf(buf + res, "%s:%d ",
 			       slave->dev->name, slave->queue_id);
 	}
-	read_unlock(&bond->lock);
 	if (res)
 		buf[res-1] = '\n'; /* eat the leftover space */
+
 	rtnl_unlock();
 
 	return res;
@@ -1530,8 +1537,6 @@ static ssize_t bonding_store_queue_id(struct device *d,
 	if (!sdev)
 		goto err_no_cmd;
 
-	read_lock(&bond->lock);
-
 	/* Search for thes slave and check for duplicate qids */
 	update_slave = NULL;
 	bond_for_each_slave(bond, slave, iter) {
@@ -1542,23 +1547,20 @@ static ssize_t bonding_store_queue_id(struct device *d,
 			 */
 			update_slave = slave;
 		else if (qid && qid == slave->queue_id) {
-			goto err_no_cmd_unlock;
+			goto err_no_cmd;
 		}
 	}
 
 	if (!update_slave)
-		goto err_no_cmd_unlock;
+		goto err_no_cmd;
 
 	/* Actually set the qids for the slave */
 	update_slave->queue_id = qid;
 
-	read_unlock(&bond->lock);
 out:
 	rtnl_unlock();
 	return ret;
 
-err_no_cmd_unlock:
-	read_unlock(&bond->lock);
 err_no_cmd:
 	pr_info("invalid input for queue_id set for %s.\n",
 		bond->dev->name);
@@ -1591,6 +1593,9 @@ static ssize_t bonding_store_slaves_active(struct device *d,
 	struct list_head *iter;
 	struct slave *slave;
 
+	if (!rtnl_trylock())
+		return restart_syscall();
+
 	if (sscanf(buf, "%d", &new_value) != 1) {
 		pr_err("%s: no all_slaves_active value specified.\n",
 		       bond->dev->name);
@@ -1610,7 +1615,6 @@ static ssize_t bonding_store_slaves_active(struct device *d,
 		goto out;
 	}
 
-	read_lock(&bond->lock);
 	bond_for_each_slave(bond, slave, iter) {
 		if (!bond_is_active_slave(slave)) {
 			if (new_value)
@@ -1619,8 +1623,8 @@ static ssize_t bonding_store_slaves_active(struct device *d,
 				slave->inactive = 1;
 		}
 	}
-	read_unlock(&bond->lock);
 out:
+	rtnl_unlock();
 	return ret;
 }
 static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR,
-- 
cgit 


From 97a07f10c38064dea492794c99445f6260afcdc1 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Thu, 17 Oct 2013 16:33:43 -0300
Subject: perf tools: Introduce filename__read_int helper

Just opens a file and calls atoi() in at most its first 64 bytes.

To read things like /proc/sys/kernel/perf_event_paranoid.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-669q04c5tou5pnt8jtiz6y2r@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/util.c | 17 +++++++++++++++++
 tools/perf/util/util.h |  2 ++
 2 files changed, 19 insertions(+)

diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 8dc8cf39f4ed..c25e57b3acb2 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -394,3 +394,20 @@ unsigned long parse_tag_value(const char *str, struct parse_tag *tags)
 
 	return (unsigned long) -1;
 }
+
+int filename__read_int(const char *filename, int *value)
+{
+	char line[64];
+	int fd = open(filename, O_RDONLY), err = -1;
+
+	if (fd < 0)
+		return -1;
+
+	if (read(fd, line, sizeof(line)) > 0) {
+		*value = atoi(line);
+		err = 0;
+	}
+
+	close(fd);
+	return err;
+}
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index 42dfba70fbfc..c8f362daba87 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -305,4 +305,6 @@ struct dso;
 
 char *get_srcline(struct dso *dso, unsigned long addr);
 void free_srcline(char *srcline);
+
+int filename__read_int(const char *filename, int *value);
 #endif /* GIT_COMPAT_UTIL_H */
-- 
cgit 


From 146c8a77d27bcbd7722120f70f51e3b287205d0a Mon Sep 17 00:00:00 2001
From: Paul Durrant <Paul.Durrant@citrix.com>
Date: Wed, 16 Oct 2013 17:50:28 +0100
Subject: xen-netback: add support for IPv6 checksum offload to guest

Check xenstore flag feature-ipv6-csum-offload to determine if a
guest is happy to accept IPv6 packets with only partial checksum.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/xen-netback/common.h    |  3 ++-
 drivers/net/xen-netback/interface.c | 10 +++++++---
 drivers/net/xen-netback/xenbus.c    |  7 ++++++-
 include/xen/interface/io/netif.h    |  7 +++++++
 4 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h
index 5715318d6bab..b4a9a3c844b2 100644
--- a/drivers/net/xen-netback/common.h
+++ b/drivers/net/xen-netback/common.h
@@ -153,7 +153,8 @@ struct xenvif {
 	u8 can_sg:1;
 	u8 gso:1;
 	u8 gso_prefix:1;
-	u8 csum:1;
+	u8 ip_csum:1;
+	u8 ipv6_csum:1;
 
 	/* Internal feature information. */
 	u8 can_queue:1;	    /* can queue packets for receiver? */
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index 01bb854c7f62..8e927838652c 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -216,8 +216,10 @@ static netdev_features_t xenvif_fix_features(struct net_device *dev,
 		features &= ~NETIF_F_SG;
 	if (!vif->gso && !vif->gso_prefix)
 		features &= ~NETIF_F_TSO;
-	if (!vif->csum)
+	if (!vif->ip_csum)
 		features &= ~NETIF_F_IP_CSUM;
+	if (!vif->ipv6_csum)
+		features &= ~NETIF_F_IPV6_CSUM;
 
 	return features;
 }
@@ -306,7 +308,7 @@ struct xenvif *xenvif_alloc(struct device *parent, domid_t domid,
 	vif->domid  = domid;
 	vif->handle = handle;
 	vif->can_sg = 1;
-	vif->csum = 1;
+	vif->ip_csum = 1;
 	vif->dev = dev;
 
 	vif->credit_bytes = vif->remaining_credit = ~0UL;
@@ -316,7 +318,9 @@ struct xenvif *xenvif_alloc(struct device *parent, domid_t domid,
 	vif->credit_timeout.expires = jiffies;
 
 	dev->netdev_ops	= &xenvif_netdev_ops;
-	dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO;
+	dev->hw_features = NETIF_F_SG |
+		NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
+		NETIF_F_TSO;
 	dev->features = dev->hw_features;
 	SET_ETHTOOL_OPS(dev, &xenvif_ethtool_ops);
 
diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index 1b08d8798372..ad27b15242cd 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -574,7 +574,12 @@ static int connect_rings(struct backend_info *be)
 	if (xenbus_scanf(XBT_NIL, dev->otherend, "feature-no-csum-offload",
 			 "%d", &val) < 0)
 		val = 0;
-	vif->csum = !val;
+	vif->ip_csum = !val;
+
+	if (xenbus_scanf(XBT_NIL, dev->otherend, "feature-ipv6-csum-offload",
+			 "%d", &val) < 0)
+		val = 0;
+	vif->ipv6_csum = !!val;
 
 	/* Map the shared frame, irq etc. */
 	err = xenvif_connect(vif, tx_ring_ref, rx_ring_ref,
diff --git a/include/xen/interface/io/netif.h b/include/xen/interface/io/netif.h
index eb262e3324d2..c9e81849fcd7 100644
--- a/include/xen/interface/io/netif.h
+++ b/include/xen/interface/io/netif.h
@@ -50,6 +50,13 @@
  * node as before.
  */
 
+/*
+ * "feature-no-csum-offload" should be used to turn IPv4 TCP/UDP checksum
+ * offload off or on. If it is missing then the feature is assumed to be on.
+ * "feature-ipv6-csum-offload" should be used to turn IPv6 TCP/UDP checksum
+ * offload on or off. If it is missing then the feature is assumed to be off.
+ */
+
 /*
  * This is the 'wire' format for packets:
  *  Request 1: xen_netif_tx_request  -- XEN_NETTXF_* (any flags)
-- 
cgit 


From 2eba61d55e5104d0bf08ba4a9cc609613f52b4c9 Mon Sep 17 00:00:00 2001
From: Paul Durrant <Paul.Durrant@citrix.com>
Date: Wed, 16 Oct 2013 17:50:29 +0100
Subject: xen-netback: add support for IPv6 checksum offload from guest

For performance of VM to VM traffic on a single host it is better to avoid
calculation of TCP/UDP checksum in the sending frontend. To allow this this
patch adds the code necessary to set up partial checksum for IPv6 packets
and xenstore flag feature-ipv6-csum-offload to advertise that fact to
frontends.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/xen-netback/netback.c | 235 +++++++++++++++++++++++++++++++-------
 drivers/net/xen-netback/xenbus.c  |   9 ++
 2 files changed, 205 insertions(+), 39 deletions(-)

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index f3e591c611de..4271f8d1da7a 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -109,15 +109,12 @@ static inline unsigned long idx_to_kaddr(struct xenvif *vif,
 	return (unsigned long)pfn_to_kaddr(idx_to_pfn(vif, idx));
 }
 
-/*
- * This is the amount of packet we copy rather than map, so that the
- * guest can't fiddle with the contents of the headers while we do
- * packet processing on them (netfilter, routing, etc).
+/* This is a miniumum size for the linear area to avoid lots of
+ * calls to __pskb_pull_tail() as we set up checksum offsets. The
+ * value 128 was chosen as it covers all IPv4 and most likely
+ * IPv6 headers.
  */
-#define PKT_PROT_LEN    (ETH_HLEN + \
-			 VLAN_HLEN + \
-			 sizeof(struct iphdr) + MAX_IPOPTLEN + \
-			 sizeof(struct tcphdr) + MAX_TCP_OPTION_SPACE)
+#define PKT_PROT_LEN 128
 
 static u16 frag_get_pending_idx(skb_frag_t *frag)
 {
@@ -1118,61 +1115,74 @@ static int xenvif_set_skb_gso(struct xenvif *vif,
 	return 0;
 }
 
-static int checksum_setup(struct xenvif *vif, struct sk_buff *skb)
+static inline void maybe_pull_tail(struct sk_buff *skb, unsigned int len)
+{
+	if (skb_is_nonlinear(skb) && skb_headlen(skb) < len) {
+		/* If we need to pullup then pullup to the max, so we
+		 * won't need to do it again.
+		 */
+		int target = min_t(int, skb->len, MAX_TCP_HEADER);
+		__pskb_pull_tail(skb, target - skb_headlen(skb));
+	}
+}
+
+static int checksum_setup_ip(struct xenvif *vif, struct sk_buff *skb,
+			     int recalculate_partial_csum)
 {
-	struct iphdr *iph;
+	struct iphdr *iph = (void *)skb->data;
+	unsigned int header_size;
+	unsigned int off;
 	int err = -EPROTO;
-	int recalculate_partial_csum = 0;
 
-	/*
-	 * A GSO SKB must be CHECKSUM_PARTIAL. However some buggy
-	 * peers can fail to set NETRXF_csum_blank when sending a GSO
-	 * frame. In this case force the SKB to CHECKSUM_PARTIAL and
-	 * recalculate the partial checksum.
-	 */
-	if (skb->ip_summed != CHECKSUM_PARTIAL && skb_is_gso(skb)) {
-		vif->rx_gso_checksum_fixup++;
-		skb->ip_summed = CHECKSUM_PARTIAL;
-		recalculate_partial_csum = 1;
-	}
+	off = sizeof(struct iphdr);
 
-	/* A non-CHECKSUM_PARTIAL SKB does not require setup. */
-	if (skb->ip_summed != CHECKSUM_PARTIAL)
-		return 0;
+	header_size = skb->network_header + off + MAX_IPOPTLEN;
+	maybe_pull_tail(skb, header_size);
 
-	if (skb->protocol != htons(ETH_P_IP))
-		goto out;
+	off = iph->ihl * 4;
 
-	iph = (void *)skb->data;
 	switch (iph->protocol) {
 	case IPPROTO_TCP:
-		if (!skb_partial_csum_set(skb, 4 * iph->ihl,
+		if (!skb_partial_csum_set(skb, off,
 					  offsetof(struct tcphdr, check)))
 			goto out;
 
 		if (recalculate_partial_csum) {
 			struct tcphdr *tcph = tcp_hdr(skb);
+
+			header_size = skb->network_header +
+				off +
+				sizeof(struct tcphdr);
+			maybe_pull_tail(skb, header_size);
+
 			tcph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
-							 skb->len - iph->ihl*4,
+							 skb->len - off,
 							 IPPROTO_TCP, 0);
 		}
 		break;
 	case IPPROTO_UDP:
-		if (!skb_partial_csum_set(skb, 4 * iph->ihl,
+		if (!skb_partial_csum_set(skb, off,
 					  offsetof(struct udphdr, check)))
 			goto out;
 
 		if (recalculate_partial_csum) {
 			struct udphdr *udph = udp_hdr(skb);
+
+			header_size = skb->network_header +
+				off +
+				sizeof(struct udphdr);
+			maybe_pull_tail(skb, header_size);
+
 			udph->check = ~csum_tcpudp_magic(iph->saddr, iph->daddr,
-							 skb->len - iph->ihl*4,
+							 skb->len - off,
 							 IPPROTO_UDP, 0);
 		}
 		break;
 	default:
 		if (net_ratelimit())
 			netdev_err(vif->dev,
-				   "Attempting to checksum a non-TCP/UDP packet, dropping a protocol %d packet\n",
+				   "Attempting to checksum a non-TCP/UDP packet, "
+				   "dropping a protocol %d packet\n",
 				   iph->protocol);
 		goto out;
 	}
@@ -1183,6 +1193,158 @@ out:
 	return err;
 }
 
+static int checksum_setup_ipv6(struct xenvif *vif, struct sk_buff *skb,
+			       int recalculate_partial_csum)
+{
+	int err = -EPROTO;
+	struct ipv6hdr *ipv6h = (void *)skb->data;
+	u8 nexthdr;
+	unsigned int header_size;
+	unsigned int off;
+	bool fragment;
+	bool done;
+
+	done = false;
+
+	off = sizeof(struct ipv6hdr);
+
+	header_size = skb->network_header + off;
+	maybe_pull_tail(skb, header_size);
+
+	nexthdr = ipv6h->nexthdr;
+
+	while ((off <= sizeof(struct ipv6hdr) + ntohs(ipv6h->payload_len)) &&
+	       !done) {
+		switch (nexthdr) {
+		case IPPROTO_DSTOPTS:
+		case IPPROTO_HOPOPTS:
+		case IPPROTO_ROUTING: {
+			struct ipv6_opt_hdr *hp = (void *)(skb->data + off);
+
+			header_size = skb->network_header +
+				off +
+				sizeof(struct ipv6_opt_hdr);
+			maybe_pull_tail(skb, header_size);
+
+			nexthdr = hp->nexthdr;
+			off += ipv6_optlen(hp);
+			break;
+		}
+		case IPPROTO_AH: {
+			struct ip_auth_hdr *hp = (void *)(skb->data + off);
+
+			header_size = skb->network_header +
+				off +
+				sizeof(struct ip_auth_hdr);
+			maybe_pull_tail(skb, header_size);
+
+			nexthdr = hp->nexthdr;
+			off += (hp->hdrlen+2)<<2;
+			break;
+		}
+		case IPPROTO_FRAGMENT:
+			fragment = true;
+			/* fall through */
+		default:
+			done = true;
+			break;
+		}
+	}
+
+	if (!done) {
+		if (net_ratelimit())
+			netdev_err(vif->dev, "Failed to parse packet header\n");
+		goto out;
+	}
+
+	if (fragment) {
+		if (net_ratelimit())
+			netdev_err(vif->dev, "Packet is a fragment!\n");
+		goto out;
+	}
+
+	switch (nexthdr) {
+	case IPPROTO_TCP:
+		if (!skb_partial_csum_set(skb, off,
+					  offsetof(struct tcphdr, check)))
+			goto out;
+
+		if (recalculate_partial_csum) {
+			struct tcphdr *tcph = tcp_hdr(skb);
+
+			header_size = skb->network_header +
+				off +
+				sizeof(struct tcphdr);
+			maybe_pull_tail(skb, header_size);
+
+			tcph->check = ~csum_ipv6_magic(&ipv6h->saddr,
+						       &ipv6h->daddr,
+						       skb->len - off,
+						       IPPROTO_TCP, 0);
+		}
+		break;
+	case IPPROTO_UDP:
+		if (!skb_partial_csum_set(skb, off,
+					  offsetof(struct udphdr, check)))
+			goto out;
+
+		if (recalculate_partial_csum) {
+			struct udphdr *udph = udp_hdr(skb);
+
+			header_size = skb->network_header +
+				off +
+				sizeof(struct udphdr);
+			maybe_pull_tail(skb, header_size);
+
+			udph->check = ~csum_ipv6_magic(&ipv6h->saddr,
+						       &ipv6h->daddr,
+						       skb->len - off,
+						       IPPROTO_UDP, 0);
+		}
+		break;
+	default:
+		if (net_ratelimit())
+			netdev_err(vif->dev,
+				   "Attempting to checksum a non-TCP/UDP packet, "
+				   "dropping a protocol %d packet\n",
+				   nexthdr);
+		goto out;
+	}
+
+	err = 0;
+
+out:
+	return err;
+}
+
+static int checksum_setup(struct xenvif *vif, struct sk_buff *skb)
+{
+	int err = -EPROTO;
+	int recalculate_partial_csum = 0;
+
+	/* A GSO SKB must be CHECKSUM_PARTIAL. However some buggy
+	 * peers can fail to set NETRXF_csum_blank when sending a GSO
+	 * frame. In this case force the SKB to CHECKSUM_PARTIAL and
+	 * recalculate the partial checksum.
+	 */
+	if (skb->ip_summed != CHECKSUM_PARTIAL && skb_is_gso(skb)) {
+		vif->rx_gso_checksum_fixup++;
+		skb->ip_summed = CHECKSUM_PARTIAL;
+		recalculate_partial_csum = 1;
+	}
+
+	/* A non-CHECKSUM_PARTIAL SKB does not require setup. */
+	if (skb->ip_summed != CHECKSUM_PARTIAL)
+		return 0;
+
+	if (skb->protocol == htons(ETH_P_IP))
+		err = checksum_setup_ip(vif, skb, recalculate_partial_csum);
+	else if (skb->protocol == htons(ETH_P_IPV6))
+		err = checksum_setup_ipv6(vif, skb, recalculate_partial_csum);
+
+	return err;
+}
+
 static bool tx_credit_exceeded(struct xenvif *vif, unsigned size)
 {
 	unsigned long now = jiffies;
@@ -1428,12 +1590,7 @@ static int xenvif_tx_submit(struct xenvif *vif, int budget)
 
 		xenvif_fill_frags(vif, skb);
 
-		/*
-		 * If the initial fragment was < PKT_PROT_LEN then
-		 * pull through some bytes from the other fragments to
-		 * increase the linear region to PKT_PROT_LEN bytes.
-		 */
-		if (skb_headlen(skb) < PKT_PROT_LEN && skb_is_nonlinear(skb)) {
+		if (skb_is_nonlinear(skb) && skb_headlen(skb) < PKT_PROT_LEN) {
 			int target = min_t(int, skb->len, PKT_PROT_LEN);
 			__pskb_pull_tail(skb, target - skb_headlen(skb));
 		}
diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index ad27b15242cd..108e7523017a 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -105,6 +105,15 @@ static int netback_probe(struct xenbus_device *dev,
 			goto abort_transaction;
 		}
 
+		/* We support partial checksum setup for IPv6 packets */
+		err = xenbus_printf(xbt, dev->nodename,
+				    "feature-ipv6-csum-offload",
+				    "%d", 1);
+		if (err) {
+			message = "writing feature-ipv6-csum-offload";
+			goto abort_transaction;
+		}
+
 		/* We support rx-copy path. */
 		err = xenbus_printf(xbt, dev->nodename,
 				    "feature-rx-copy", "%d", 1);
-- 
cgit 


From 7365bcfa32d2c9d212c41d52ff3509d70b6a3466 Mon Sep 17 00:00:00 2001
From: Paul Durrant <Paul.Durrant@citrix.com>
Date: Wed, 16 Oct 2013 17:50:30 +0100
Subject: xen-netback: Unconditionally set NETIF_F_RXCSUM

There is no mechanism to insist that a guest always generates a packet
with good checksum (at least for IPv4) so we must handle checksum
offloading from the guest and hence should set NETIF_F_RXCSUM.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/xen-netback/interface.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index 8e927838652c..cb0d8ea3d9f2 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -321,7 +321,7 @@ struct xenvif *xenvif_alloc(struct device *parent, domid_t domid,
 	dev->hw_features = NETIF_F_SG |
 		NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
 		NETIF_F_TSO;
-	dev->features = dev->hw_features;
+	dev->features = dev->hw_features | NETIF_F_RXCSUM;
 	SET_ETHTOOL_OPS(dev, &xenvif_ethtool_ops);
 
 	dev->tx_queue_len = XENVIF_QUEUE_LENGTH;
-- 
cgit 


From a94685876859be30446357db6d6c4a9c951305b4 Mon Sep 17 00:00:00 2001
From: Paul Durrant <Paul.Durrant@citrix.com>
Date: Wed, 16 Oct 2013 17:50:31 +0100
Subject: xen-netback: handle IPv6 TCP GSO packets from the guest

This patch adds a xenstore feature flag, festure-gso-tcpv6, to advertise
that netback can handle IPv6 TCP GSO packets. It creates SKB_GSO_TCPV6 skbs
if the frontend passes an extra segment with the new type
XEN_NETIF_GSO_TYPE_TCPV6 added to netif.h.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/xen-netback/netback.c | 11 ++++++++---
 drivers/net/xen-netback/xenbus.c  |  7 +++++++
 include/xen/interface/io/netif.h  | 10 +++++++++-
 3 files changed, 24 insertions(+), 4 deletions(-)

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 4271f8d1da7a..0e327d46a139 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -1098,15 +1098,20 @@ static int xenvif_set_skb_gso(struct xenvif *vif,
 		return -EINVAL;
 	}
 
-	/* Currently only TCPv4 S.O. is supported. */
-	if (gso->u.gso.type != XEN_NETIF_GSO_TYPE_TCPV4) {
+	switch (gso->u.gso.type) {
+	case XEN_NETIF_GSO_TYPE_TCPV4:
+		skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4;
+		break;
+	case XEN_NETIF_GSO_TYPE_TCPV6:
+		skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6;
+		break;
+	default:
 		netdev_err(vif->dev, "Bad GSO type %d.\n", gso->u.gso.type);
 		xenvif_fatal_tx_err(vif);
 		return -EINVAL;
 	}
 
 	skb_shinfo(skb)->gso_size = gso->u.gso.size;
-	skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4;
 
 	/* Header must be checked, and gso_segs computed. */
 	skb_shinfo(skb)->gso_type |= SKB_GSO_DODGY;
diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index 108e7523017a..02cb00bebdc9 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -105,6 +105,13 @@ static int netback_probe(struct xenbus_device *dev,
 			goto abort_transaction;
 		}
 
+		err = xenbus_printf(xbt, dev->nodename, "feature-gso-tcpv6",
+				    "%d", sg);
+		if (err) {
+			message = "writing feature-gso-tcpv6";
+			goto abort_transaction;
+		}
+
 		/* We support partial checksum setup for IPv6 packets */
 		err = xenbus_printf(xbt, dev->nodename,
 				    "feature-ipv6-csum-offload",
diff --git a/include/xen/interface/io/netif.h b/include/xen/interface/io/netif.h
index c9e81849fcd7..5e766ebe77f6 100644
--- a/include/xen/interface/io/netif.h
+++ b/include/xen/interface/io/netif.h
@@ -57,6 +57,13 @@
  * offload on or off. If it is missing then the feature is assumed to be off.
  */
 
+/*
+ * "feature-gso-tcpv4" and "feature-gso-tcpv6" advertise the capability to
+ * handle large TCP packets (in IPv4 or IPv6 form respectively). Neither
+ * frontends nor backends are assumed to be capable unless the flags are
+ * present.
+ */
+
 /*
  * This is the 'wire' format for packets:
  *  Request 1: xen_netif_tx_request  -- XEN_NETTXF_* (any flags)
@@ -102,8 +109,9 @@ struct xen_netif_tx_request {
 #define _XEN_NETIF_EXTRA_FLAG_MORE	(0)
 #define  XEN_NETIF_EXTRA_FLAG_MORE	(1U<<_XEN_NETIF_EXTRA_FLAG_MORE)
 
-/* GSO types - only TCPv4 currently supported. */
+/* GSO types */
 #define XEN_NETIF_GSO_TYPE_TCPV4	(1)
+#define XEN_NETIF_GSO_TYPE_TCPV6	(2)
 
 /*
  * This structure needs to fit within both netif_tx_request and
-- 
cgit 


From 82cada22a0bbec6a7afb573ef5fb6c512aaa2739 Mon Sep 17 00:00:00 2001
From: Paul Durrant <Paul.Durrant@citrix.com>
Date: Wed, 16 Oct 2013 17:50:32 +0100
Subject: xen-netback: enable IPv6 TCP GSO to the guest

This patch adds code to handle SKB_GSO_TCPV6 skbs and construct appropriate
extra or prefix segments to pass the large packet to the frontend. New
xenstore flags, feature-gso-tcpv6 and feature-gso-tcpv6-prefix, are sampled
to determine if the frontend is capable of handling such packets.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Cc: Wei Liu <wei.liu2@citrix.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/xen-netback/common.h    |  9 +++++--
 drivers/net/xen-netback/interface.c |  6 +++--
 drivers/net/xen-netback/netback.c   | 48 +++++++++++++++++++++++++++++--------
 drivers/net/xen-netback/xenbus.c    | 29 ++++++++++++++++++++--
 include/xen/interface/io/netif.h    |  1 +
 5 files changed, 77 insertions(+), 16 deletions(-)

diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h
index b4a9a3c844b2..55b8dec86233 100644
--- a/drivers/net/xen-netback/common.h
+++ b/drivers/net/xen-netback/common.h
@@ -87,9 +87,13 @@ struct pending_tx_info {
 struct xenvif_rx_meta {
 	int id;
 	int size;
+	int gso_type;
 	int gso_size;
 };
 
+#define GSO_BIT(type) \
+	(1 << XEN_NETIF_GSO_TYPE_ ## type)
+
 /* Discriminate from any valid pending_idx value. */
 #define INVALID_PENDING_IDX 0xFFFF
 
@@ -150,9 +154,10 @@ struct xenvif {
 	u8               fe_dev_addr[6];
 
 	/* Frontend feature information. */
+	int gso_mask;
+	int gso_prefix_mask;
+
 	u8 can_sg:1;
-	u8 gso:1;
-	u8 gso_prefix:1;
 	u8 ip_csum:1;
 	u8 ipv6_csum:1;
 
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index cb0d8ea3d9f2..e4aa26748f80 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -214,8 +214,10 @@ static netdev_features_t xenvif_fix_features(struct net_device *dev,
 
 	if (!vif->can_sg)
 		features &= ~NETIF_F_SG;
-	if (!vif->gso && !vif->gso_prefix)
+	if (~(vif->gso_mask | vif->gso_prefix_mask) & GSO_BIT(TCPV4))
 		features &= ~NETIF_F_TSO;
+	if (~(vif->gso_mask | vif->gso_prefix_mask) & GSO_BIT(TCPV6))
+		features &= ~NETIF_F_TSO6;
 	if (!vif->ip_csum)
 		features &= ~NETIF_F_IP_CSUM;
 	if (!vif->ipv6_csum)
@@ -320,7 +322,7 @@ struct xenvif *xenvif_alloc(struct device *parent, domid_t domid,
 	dev->netdev_ops	= &xenvif_netdev_ops;
 	dev->hw_features = NETIF_F_SG |
 		NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
-		NETIF_F_TSO;
+		NETIF_F_TSO | NETIF_F_TSO6;
 	dev->features = dev->hw_features | NETIF_F_RXCSUM;
 	SET_ETHTOOL_OPS(dev, &xenvif_ethtool_ops);
 
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 0e327d46a139..828fdab4f1a4 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -142,7 +142,7 @@ static int max_required_rx_slots(struct xenvif *vif)
 	int max = DIV_ROUND_UP(vif->dev->mtu, PAGE_SIZE);
 
 	/* XXX FIXME: RX path dependent on MAX_SKB_FRAGS */
-	if (vif->can_sg || vif->gso || vif->gso_prefix)
+	if (vif->can_sg || vif->gso_mask || vif->gso_prefix_mask)
 		max += MAX_SKB_FRAGS + 1; /* extra_info + frags */
 
 	return max;
@@ -314,6 +314,7 @@ static struct xenvif_rx_meta *get_next_rx_buffer(struct xenvif *vif,
 	req = RING_GET_REQUEST(&vif->rx, vif->rx.req_cons++);
 
 	meta = npo->meta + npo->meta_prod++;
+	meta->gso_type = XEN_NETIF_GSO_TYPE_NONE;
 	meta->gso_size = 0;
 	meta->size = 0;
 	meta->id = req->id;
@@ -336,6 +337,7 @@ static void xenvif_gop_frag_copy(struct xenvif *vif, struct sk_buff *skb,
 	struct gnttab_copy *copy_gop;
 	struct xenvif_rx_meta *meta;
 	unsigned long bytes;
+	int gso_type;
 
 	/* Data must not cross a page boundary. */
 	BUG_ON(size + offset > PAGE_SIZE<<compound_order(page));
@@ -394,7 +396,14 @@ static void xenvif_gop_frag_copy(struct xenvif *vif, struct sk_buff *skb,
 		}
 
 		/* Leave a gap for the GSO descriptor. */
-		if (*head && skb_shinfo(skb)->gso_size && !vif->gso_prefix)
+		if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV4)
+			gso_type = XEN_NETIF_GSO_TYPE_TCPV4;
+		else if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6)
+			gso_type = XEN_NETIF_GSO_TYPE_TCPV6;
+		else
+			gso_type = XEN_NETIF_GSO_TYPE_NONE;
+
+		if (*head && ((1 << gso_type) & vif->gso_mask))
 			vif->rx.req_cons++;
 
 		*head = 0; /* There must be something in this buffer now. */
@@ -425,14 +434,28 @@ static int xenvif_gop_skb(struct sk_buff *skb,
 	unsigned char *data;
 	int head = 1;
 	int old_meta_prod;
+	int gso_type;
+	int gso_size;
 
 	old_meta_prod = npo->meta_prod;
 
+	if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV4) {
+		gso_type = XEN_NETIF_GSO_TYPE_TCPV4;
+		gso_size = skb_shinfo(skb)->gso_size;
+	} else if (skb_shinfo(skb)->gso_type & SKB_GSO_TCPV6) {
+		gso_type = XEN_NETIF_GSO_TYPE_TCPV6;
+		gso_size = skb_shinfo(skb)->gso_size;
+	} else {
+		gso_type = XEN_NETIF_GSO_TYPE_NONE;
+		gso_size = 0;
+	}
+
 	/* Set up a GSO prefix descriptor, if necessary */
-	if (skb_shinfo(skb)->gso_size && vif->gso_prefix) {
+	if ((1 << skb_shinfo(skb)->gso_type) & vif->gso_prefix_mask) {
 		req = RING_GET_REQUEST(&vif->rx, vif->rx.req_cons++);
 		meta = npo->meta + npo->meta_prod++;
-		meta->gso_size = skb_shinfo(skb)->gso_size;
+		meta->gso_type = gso_type;
+		meta->gso_size = gso_size;
 		meta->size = 0;
 		meta->id = req->id;
 	}
@@ -440,10 +463,13 @@ static int xenvif_gop_skb(struct sk_buff *skb,
 	req = RING_GET_REQUEST(&vif->rx, vif->rx.req_cons++);
 	meta = npo->meta + npo->meta_prod++;
 
-	if (!vif->gso_prefix)
-		meta->gso_size = skb_shinfo(skb)->gso_size;
-	else
+	if ((1 << gso_type) & vif->gso_mask) {
+		meta->gso_type = gso_type;
+		meta->gso_size = gso_size;
+	} else {
+		meta->gso_type = XEN_NETIF_GSO_TYPE_NONE;
 		meta->gso_size = 0;
+	}
 
 	meta->size = 0;
 	meta->id = req->id;
@@ -589,7 +615,8 @@ void xenvif_rx_action(struct xenvif *vif)
 
 		vif = netdev_priv(skb->dev);
 
-		if (vif->meta[npo.meta_cons].gso_size && vif->gso_prefix) {
+		if ((1 << vif->meta[npo.meta_cons].gso_type) &
+		    vif->gso_prefix_mask) {
 			resp = RING_GET_RESPONSE(&vif->rx,
 						 vif->rx.rsp_prod_pvt++);
 
@@ -626,7 +653,8 @@ void xenvif_rx_action(struct xenvif *vif)
 					vif->meta[npo.meta_cons].size,
 					flags);
 
-		if (vif->meta[npo.meta_cons].gso_size && !vif->gso_prefix) {
+		if ((1 << vif->meta[npo.meta_cons].gso_type) &
+		    vif->gso_mask) {
 			struct xen_netif_extra_info *gso =
 				(struct xen_netif_extra_info *)
 				RING_GET_RESPONSE(&vif->rx,
@@ -634,8 +662,8 @@ void xenvif_rx_action(struct xenvif *vif)
 
 			resp->flags |= XEN_NETRXF_extra_info;
 
+			gso->u.gso.type = vif->meta[npo.meta_cons].gso_type;
 			gso->u.gso.size = vif->meta[npo.meta_cons].gso_size;
-			gso->u.gso.type = XEN_NETIF_GSO_TYPE_TCPV4;
 			gso->u.gso.pad = 0;
 			gso->u.gso.features = 0;
 
diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index 02cb00bebdc9..f0358992b04f 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -577,15 +577,40 @@ static int connect_rings(struct backend_info *be)
 		val = 0;
 	vif->can_sg = !!val;
 
+	vif->gso_mask = 0;
+	vif->gso_prefix_mask = 0;
+
 	if (xenbus_scanf(XBT_NIL, dev->otherend, "feature-gso-tcpv4",
 			 "%d", &val) < 0)
 		val = 0;
-	vif->gso = !!val;
+	if (val)
+		vif->gso_mask |= GSO_BIT(TCPV4);
 
 	if (xenbus_scanf(XBT_NIL, dev->otherend, "feature-gso-tcpv4-prefix",
 			 "%d", &val) < 0)
 		val = 0;
-	vif->gso_prefix = !!val;
+	if (val)
+		vif->gso_prefix_mask |= GSO_BIT(TCPV4);
+
+	if (xenbus_scanf(XBT_NIL, dev->otherend, "feature-gso-tcpv6",
+			 "%d", &val) < 0)
+		val = 0;
+	if (val)
+		vif->gso_mask |= GSO_BIT(TCPV6);
+
+	if (xenbus_scanf(XBT_NIL, dev->otherend, "feature-gso-tcpv6-prefix",
+			 "%d", &val) < 0)
+		val = 0;
+	if (val)
+		vif->gso_prefix_mask |= GSO_BIT(TCPV6);
+
+	if (vif->gso_mask & vif->gso_prefix_mask) {
+		xenbus_dev_fatal(dev, err,
+				 "%s: gso and gso prefix flags are not "
+				 "mutually exclusive",
+				 dev->otherend);
+		return -EOPNOTSUPP;
+	}
 
 	if (xenbus_scanf(XBT_NIL, dev->otherend, "feature-no-csum-offload",
 			 "%d", &val) < 0)
diff --git a/include/xen/interface/io/netif.h b/include/xen/interface/io/netif.h
index 5e766ebe77f6..c50061db6098 100644
--- a/include/xen/interface/io/netif.h
+++ b/include/xen/interface/io/netif.h
@@ -110,6 +110,7 @@ struct xen_netif_tx_request {
 #define  XEN_NETIF_EXTRA_FLAG_MORE	(1U<<_XEN_NETIF_EXTRA_FLAG_MORE)
 
 /* GSO types */
+#define XEN_NETIF_GSO_TYPE_NONE		(0)
 #define XEN_NETIF_GSO_TYPE_TCPV4	(1)
 #define XEN_NETIF_GSO_TYPE_TCPV6	(2)
 
-- 
cgit 


From a5bb202b848c7962f942f81d93290a9ccdfb1a0f Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Mon, 14 Oct 2013 12:36:32 -0700
Subject: netdev: inet_timewait_sock.h missing semi-colon when KMEMCHECK is
 enabled

Fix (a few hundred) build errors due to missing semi-colon when
KMEMCHECK is enabled:

  include/net/inet_timewait_sock.h:139:2: error: expected ',', ';' or '}' before 'int'
  include/net/inet_timewait_sock.h:148:28: error: 'const struct inet_timewait_sock' has no member named 'tw_death_node'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/inet_timewait_sock.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/net/inet_timewait_sock.h b/include/net/inet_timewait_sock.h
index b647c6270eb7..71c6e264e5b5 100644
--- a/include/net/inet_timewait_sock.h
+++ b/include/net/inet_timewait_sock.h
@@ -135,7 +135,7 @@ struct inet_timewait_sock {
 				tw_transparent  : 1,
 				tw_pad		: 6,	/* 6 bits hole */
 				tw_tos		: 8,
-				tw_pad2		: 16 /* 16 bits hole */
+				tw_pad2		: 16;	/* 16 bits hole */
 	kmemcheck_bitfield_end(flags);
 	u32			tw_ttd;
 	struct inet_bind_bucket	*tw_tb;
-- 
cgit 


From 0baf2b35fc70ab16c385963d2502da26a55d2cb7 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 16 Oct 2013 02:49:04 -0700
Subject: ipv4: shrink rt_cache_stat

Half of the rt_cache_stat fields are no longer used after IP
route cache removal, lets shrink this per cpu area.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/route.h |  8 --------
 net/ipv4/route.c    | 16 ++++++++--------
 2 files changed, 8 insertions(+), 16 deletions(-)

diff --git a/include/net/route.h b/include/net/route.h
index 0ad8e0102386..dd4ae0029fd8 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -88,22 +88,14 @@ struct ip_rt_acct {
 };
 
 struct rt_cache_stat {
-        unsigned int in_hit;
         unsigned int in_slow_tot;
         unsigned int in_slow_mc;
         unsigned int in_no_route;
         unsigned int in_brd;
         unsigned int in_martian_dst;
         unsigned int in_martian_src;
-        unsigned int out_hit;
         unsigned int out_slow_tot;
         unsigned int out_slow_mc;
-        unsigned int gc_total;
-        unsigned int gc_ignored;
-        unsigned int gc_goal_miss;
-        unsigned int gc_dst_overflow;
-        unsigned int in_hlist_search;
-        unsigned int out_hlist_search;
 };
 
 extern struct ip_rt_acct __percpu *ip_rt_acct;
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 6011615e810d..d2d325382b13 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -295,7 +295,7 @@ static int rt_cpu_seq_show(struct seq_file *seq, void *v)
 	seq_printf(seq,"%08x  %08x %08x %08x %08x %08x %08x %08x "
 		   " %08x %08x %08x %08x %08x %08x %08x %08x %08x \n",
 		   dst_entries_get_slow(&ipv4_dst_ops),
-		   st->in_hit,
+		   0, /* st->in_hit */
 		   st->in_slow_tot,
 		   st->in_slow_mc,
 		   st->in_no_route,
@@ -303,16 +303,16 @@ static int rt_cpu_seq_show(struct seq_file *seq, void *v)
 		   st->in_martian_dst,
 		   st->in_martian_src,
 
-		   st->out_hit,
+		   0, /* st->out_hit */
 		   st->out_slow_tot,
 		   st->out_slow_mc,
 
-		   st->gc_total,
-		   st->gc_ignored,
-		   st->gc_goal_miss,
-		   st->gc_dst_overflow,
-		   st->in_hlist_search,
-		   st->out_hlist_search
+		   0, /* st->gc_total */
+		   0, /* st->gc_ignored */
+		   0, /* st->gc_goal_miss */
+		   0, /* st->gc_dst_overflow */
+		   0, /* st->in_hlist_search */
+		   0  /* st->out_hlist_search */
 		);
 	return 0;
 }
-- 
cgit 


From 2c62a3c899805be7f054847d80210183e4a982d9 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Thu, 17 Oct 2013 10:44:26 -0700
Subject: serial: 8250_pci: add support for Fintek 4, 8, and 12 port cards

This adds support for Fintek's 4, 8, and 12 port PCIE serial cards.

Thanks to Fintek for the sample devices, and the spec needed in order to
implement this.

Cc: Amanda Ying <amanda_ying@fintek.com.tw>
Cc: Felix Shih <felix_shih@fintek.com.tw>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/8250_pci.c | 112 +++++++++++++++++++++++++++++++++++++
 1 file changed, 112 insertions(+)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 0774c02d6c49..4ea45c15388c 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1457,6 +1457,71 @@ pci_brcm_trumanage_setup(struct serial_private *priv,
 	return ret;
 }
 
+static int pci_fintek_setup(struct serial_private *priv,
+			    const struct pciserial_board *board,
+			    struct uart_8250_port *port, int idx)
+{
+	struct pci_dev *pdev = priv->dev;
+	unsigned long base;
+	unsigned long iobase;
+	unsigned long ciobase = 0;
+	u8 config_base;
+
+	/*
+	 * We are supposed to be able to read these from the PCI config space,
+	 * but the values there don't seem to match what we need to use, so
+	 * just use these hard-coded values for now, as they are correct.
+	 */
+	switch (idx) {
+	case 0: iobase = 0xe000; config_base = 0x40; break;
+	case 1: iobase = 0xe008; config_base = 0x48; break;
+	case 2: iobase = 0xe010; config_base = 0x50; break;
+	case 3: iobase = 0xe018; config_base = 0x58; break;
+	case 4: iobase = 0xe020; config_base = 0x60; break;
+	case 5: iobase = 0xe028; config_base = 0x68; break;
+	case 6: iobase = 0xe030; config_base = 0x70; break;
+	case 7: iobase = 0xe038; config_base = 0x78; break;
+	case 8: iobase = 0xe040; config_base = 0x80; break;
+	case 9: iobase = 0xe048; config_base = 0x88; break;
+	case 10: iobase = 0xe050; config_base = 0x90; break;
+	case 11: iobase = 0xe058; config_base = 0x98; break;
+	default:
+		/* Unknown number of ports, get out of here */
+		return -EINVAL;
+	}
+
+	if (idx < 4) {
+		base = pci_resource_start(priv->dev, 3);
+		ciobase = (int)(base + (0x8 * idx));
+	}
+
+	dev_dbg(&pdev->dev, "%s: idx=%d iobase=0x%lx ciobase=0x%lx config_base=0x%2x\n",
+		__func__, idx, iobase, ciobase, config_base);
+
+	/* Enable UART I/O port */
+	pci_write_config_byte(pdev, config_base + 0x00, 0x01);
+
+	/* Select 128-byte FIFO and 8x FIFO threshold */
+	pci_write_config_byte(pdev, config_base + 0x01, 0x33);
+
+	/* LSB UART */
+	pci_write_config_byte(pdev, config_base + 0x04, (u8)(iobase & 0xff));
+
+	/* MSB UART */
+	pci_write_config_byte(pdev, config_base + 0x05, (u8)((iobase & 0xff00) >> 8));
+
+	/* irq number, this usually fails, but the spec says to do it anyway. */
+	pci_write_config_byte(pdev, config_base + 0x06, pdev->irq);
+
+	port->port.iotype = UPIO_PORT;
+	port->port.iobase = iobase;
+	port->port.mapbase = 0;
+	port->port.membase = NULL;
+	port->port.regshift = 0;
+
+	return 0;
+}
+
 static int skip_tx_en_setup(struct serial_private *priv,
 			const struct pciserial_board *board,
 			struct uart_8250_port *port, int idx)
@@ -2380,6 +2445,27 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
 		.subdevice	= PCI_ANY_ID,
 		.setup		= pci_brcm_trumanage_setup,
 	},
+	{
+		.vendor		= 0x1c29,
+		.device		= 0x1104,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_fintek_setup,
+	},
+	{
+		.vendor		= 0x1c29,
+		.device		= 0x1108,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_fintek_setup,
+	},
+	{
+		.vendor		= 0x1c29,
+		.device		= 0x1112,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_fintek_setup,
+	},
 
 	/*
 	 * Default "match everything" terminator entry
@@ -2578,6 +2664,9 @@ enum pci_board_num_t {
 	pbn_omegapci,
 	pbn_NETMOS9900_2s_115200,
 	pbn_brcm_trumanage,
+	pbn_fintek_4,
+	pbn_fintek_8,
+	pbn_fintek_12,
 };
 
 /*
@@ -3335,6 +3424,24 @@ static struct pciserial_board pci_boards[] = {
 		.reg_shift	= 2,
 		.base_baud	= 115200,
 	},
+	[pbn_fintek_4] = {
+		.num_ports	= 4,
+		.uart_offset	= 8,
+		.base_baud	= 115200,
+		.first_offset	= 0x40,
+	},
+	[pbn_fintek_8] = {
+		.num_ports	= 8,
+		.uart_offset	= 8,
+		.base_baud	= 115200,
+		.first_offset	= 0x40,
+	},
+	[pbn_fintek_12] = {
+		.num_ports	= 12,
+		.uart_offset	= 8,
+		.base_baud	= 115200,
+		.first_offset	= 0x40,
+	},
 };
 
 static const struct pci_device_id blacklist[] = {
@@ -5059,6 +5166,11 @@ static struct pci_device_id serial_pci_tbl[] = {
 		0,
 		0, pbn_exar_XR17V358 },
 
+	/* Fintek PCI serial cards */
+	{ PCI_DEVICE(0x1c29, 0x1104), .driver_data = pbn_fintek_4 },
+	{ PCI_DEVICE(0x1c29, 0x1108), .driver_data = pbn_fintek_8 },
+	{ PCI_DEVICE(0x1c29, 0x1112), .driver_data = pbn_fintek_12 },
+
 	/*
 	 * These entries match devices with class COMMUNICATION_SERIAL,
 	 * COMMUNICATION_MODEM or COMMUNICATION_MULTISERIAL
-- 
cgit 


From 892db58bd1285d44e6e1a1e36157161990ec5ae4 Mon Sep 17 00:00:00 2001
From: Nicolas Ferre <nicolas.ferre@atmel.com>
Date: Thu, 17 Oct 2013 17:37:11 +0200
Subject: tty/serial: at91: fix uart/usart selection for older products

Since commit 055560b04a8cd063aea916fd083b7aec02c2adb8 (serial: at91:
distinguish usart and uart) the older products which do not have a
name field in their register map are unable to use their serial output.
As the main console output is usually the serial interface (aka DBGU) it
is pretty unfortunate.
So, instead of failing during probe() we just silently configure the serial
peripheral as an uart. It allows us to use these serial outputs.
The proper solution is proposed in another patch.

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/atmel_serial.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index d067285a2d20..6b0f75eac8a2 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -1499,7 +1499,7 @@ static void atmel_set_ops(struct uart_port *port)
 /*
  * Get ip name usart or uart
  */
-static int atmel_get_ip_name(struct uart_port *port)
+static void atmel_get_ip_name(struct uart_port *port)
 {
 	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
 	int name = UART_GET_IP_NAME(port);
@@ -1518,10 +1518,7 @@ static int atmel_get_ip_name(struct uart_port *port)
 		atmel_port->is_usart = false;
 	} else {
 		dev_err(port->dev, "Not supported ip name, set to uart\n");
-		return -EINVAL;
 	}
-
-	return 0;
 }
 
 /*
@@ -2405,9 +2402,7 @@ static int atmel_serial_probe(struct platform_device *pdev)
 	/*
 	 * Get port name of usart or uart
 	 */
-	ret = atmel_get_ip_name(&port->uart);
-	if (ret < 0)
-		goto err_add_port;
+	atmel_get_ip_name(&port->uart);
 
 	return 0;
 
-- 
cgit 


From 731d9cae0204a8948c7db2f551edcd5d5822ed95 Mon Sep 17 00:00:00 2001
From: Nicolas Ferre <nicolas.ferre@atmel.com>
Date: Thu, 17 Oct 2013 17:37:12 +0200
Subject: tty/serial: at91: add a fallback option to determine uart/usart
 property

On older SoC, the "name" field is not filled in the register map.
Fix the way to figure out if the serial port is an uart or an usart for these
older products (with corresponding properties).

Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/atmel_serial.c | 19 ++++++++++++++++++-
 include/linux/atmel_serial.h      |  1 +
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index 6b0f75eac8a2..c7d99af46a96 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -99,6 +99,7 @@ static void atmel_stop_rx(struct uart_port *port);
 #define UART_PUT_RTOR(port,v)	__raw_writel(v, (port)->membase + ATMEL_US_RTOR)
 #define UART_PUT_TTGR(port, v)	__raw_writel(v, (port)->membase + ATMEL_US_TTGR)
 #define UART_GET_IP_NAME(port)	__raw_readl((port)->membase + ATMEL_US_NAME)
+#define UART_GET_IP_VERSION(port) __raw_readl((port)->membase + ATMEL_US_VERSION)
 
  /* PDC registers */
 #define UART_PUT_PTCR(port,v)	__raw_writel(v, (port)->membase + ATMEL_PDC_PTCR)
@@ -1503,6 +1504,7 @@ static void atmel_get_ip_name(struct uart_port *port)
 {
 	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
 	int name = UART_GET_IP_NAME(port);
+	u32 version;
 	int usart, uart;
 	/* usart and uart ascii */
 	usart = 0x55534152;
@@ -1517,7 +1519,22 @@ static void atmel_get_ip_name(struct uart_port *port)
 		dev_dbg(port->dev, "This is uart\n");
 		atmel_port->is_usart = false;
 	} else {
-		dev_err(port->dev, "Not supported ip name, set to uart\n");
+		/* fallback for older SoCs: use version field */
+		version = UART_GET_IP_VERSION(port);
+		switch (version) {
+		case 0x302:
+		case 0x10213:
+			dev_dbg(port->dev, "This version is usart\n");
+			atmel_port->is_usart = true;
+			break;
+		case 0x203:
+		case 0x10202:
+			dev_dbg(port->dev, "This version is uart\n");
+			atmel_port->is_usart = false;
+			break;
+		default:
+			dev_err(port->dev, "Not supported ip name nor version, set to uart\n");
+		}
 	}
 }
 
diff --git a/include/linux/atmel_serial.h b/include/linux/atmel_serial.h
index be201ca2990c..00beddf6be20 100644
--- a/include/linux/atmel_serial.h
+++ b/include/linux/atmel_serial.h
@@ -125,5 +125,6 @@
 #define ATMEL_US_IF		0x4c			/* IrDA Filter Register */
 
 #define ATMEL_US_NAME		0xf0			/* Ip Name */
+#define ATMEL_US_VERSION	0xfc			/* Ip Version */
 
 #endif
-- 
cgit 


From f1f9f35019507d9f530c6a65906fb7c2e13a4b58 Mon Sep 17 00:00:00 2001
From: Archana kumari <archanakumari959@gmail.com>
Date: Fri, 18 Oct 2013 01:01:55 +0530
Subject: staging: vt6655:removed incorrect casting in hostap.c

This patch fixes the following type of sparse warnings:

drivers/staging/vt6655/hostap.c:733:42: warning: cast from restricted gfp_t
drivers/staging/vt6655/hostap.c:733:42: warning: incorrect type in argument 2 (different base types)
drivers/staging/vt6655/hostap.c:733:42:    expected restricted gfp_t [usertype] flags
drivers/staging/vt6655/hostap.c:733:42:    got int [signed] <noident>

Signed-off-by: Archana kumari <archanakumari959@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6655/hostap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/vt6655/hostap.c b/drivers/staging/vt6655/hostap.c
index fdd63b60b7c0..aab0012bba92 100644
--- a/drivers/staging/vt6655/hostap.c
+++ b/drivers/staging/vt6655/hostap.c
@@ -730,7 +730,7 @@ int vt6655_hostap_ioctl(PSDevice pDevice, struct iw_point *p)
 	    p->length > VIAWGET_HOSTAPD_MAX_BUF_SIZE || !p->pointer)
 		return -EINVAL;
 
-	param = kmalloc((int)p->length, (int)GFP_KERNEL);
+	param = kmalloc((int)p->length, GFP_KERNEL);
 	if (param == NULL)
 		return -ENOMEM;
 
-- 
cgit 


From 1266ed76339cde9e9c5aa3dbd955b0f48d9ec628 Mon Sep 17 00:00:00 2001
From: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Date: Fri, 18 Oct 2013 00:22:23 +0530
Subject: staging: vt6656: indentation and removal of unnecessary spaces

Removed unnecessary white spaces at beginning of line
and added proper indentation to fix checkpatch warnings/errors
to improve the readability of code

Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/firmware.c | 91 +++++++++++++++++++--------------------
 1 file changed, 44 insertions(+), 47 deletions(-)

diff --git a/drivers/staging/vt6656/firmware.c b/drivers/staging/vt6656/firmware.c
index a1dc3a4cfd9c..2d7501bf6938 100644
--- a/drivers/staging/vt6656/firmware.c
+++ b/drivers/staging/vt6656/firmware.c
@@ -35,8 +35,8 @@
 #include "control.h"
 #include "rndis.h"
 
-static int          msglevel                =MSG_LEVEL_INFO;
-//static int          msglevel                =MSG_LEVEL_DEBUG;
+static int msglevel = MSG_LEVEL_INFO;
+//static int msglevel = MSG_LEVEL_DEBUG;
 
 #define FIRMWARE_VERSION	0x133		/* version 1.51 */
 #define FIRMWARE_NAME		"vntwusb.fw"
@@ -72,18 +72,17 @@ int FIRMWAREbDownload(struct vnt_private *pDevice)
 		memcpy(pBuffer, fw->data + ii, wLength);
 
 		NdisStatus = CONTROLnsRequestOutAsyn(pDevice,
-                                            0,
-                                            0x1200+ii,
-                                            0x0000,
-                                            wLength,
-                                            pBuffer
-                                            );
+						0,
+						0x1200+ii,
+						0x0000,
+						wLength,
+						pBuffer);
 
 		DBG_PRT(MSG_LEVEL_DEBUG,
 			KERN_INFO"Download firmware...%d %zu\n", ii, fw->size);
 		if (NdisStatus != STATUS_SUCCESS)
 			goto free_fw;
-        }
+	}
 
 	result = true;
 free_fw:
@@ -101,48 +100,46 @@ int FIRMWAREbBrach2Sram(struct vnt_private *pDevice)
 {
 	int NdisStatus;
 
-    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Branch to Sram\n");
-
-    NdisStatus = CONTROLnsRequestOut(pDevice,
-                                    1,
-                                    0x1200,
-                                    0x0000,
-                                    0,
-                                    NULL
-                                    );
-
-    if (NdisStatus != STATUS_SUCCESS) {
-        return (false);
-    } else {
-        return (true);
-    }
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"---->Branch to Sram\n");
+
+	NdisStatus = CONTROLnsRequestOut(pDevice,
+					1,
+					0x1200,
+					0x0000,
+					0,
+					NULL);
+	if (NdisStatus != STATUS_SUCCESS) {
+		return (false);
+	} else {
+		return (true);
+	}
 }
 
 int FIRMWAREbCheckVersion(struct vnt_private *pDevice)
 {
 	int ntStatus;
 
-    ntStatus = CONTROLnsRequestIn(pDevice,
-                                    MESSAGE_TYPE_READ,
-                                    0,
-                                    MESSAGE_REQUEST_VERSION,
-                                    2,
-                                    (u8 *) &(pDevice->wFirmwareVersion));
-
-    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Version [%04x]\n", pDevice->wFirmwareVersion);
-    if (ntStatus != STATUS_SUCCESS) {
-        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Invalid.\n");
-        return false;
-    }
-    if (pDevice->wFirmwareVersion == 0xFFFF) {
-        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"In Loader.\n");
-        return false;
-    }
-    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Version [%04x]\n", pDevice->wFirmwareVersion);
-    if (pDevice->wFirmwareVersion < FIRMWARE_VERSION) {
-        // branch to loader for download new firmware
-        FIRMWAREbBrach2Sram(pDevice);
-        return false;
-    }
-    return true;
+	ntStatus = CONTROLnsRequestIn(pDevice,
+					MESSAGE_TYPE_READ,
+					0,
+					MESSAGE_REQUEST_VERSION,
+					2,
+					(u8 *) &(pDevice->wFirmwareVersion));
+
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Version [%04x]\n", pDevice->wFirmwareVersion);
+	if (ntStatus != STATUS_SUCCESS) {
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Invalid.\n");
+		return false;
+	}
+	if (pDevice->wFirmwareVersion == 0xFFFF) {
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"In Loader.\n");
+		return false;
+	}
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Version [%04x]\n", pDevice->wFirmwareVersion);
+	if (pDevice->wFirmwareVersion < FIRMWARE_VERSION) {
+		// branch to loader for download new firmware
+		FIRMWAREbBrach2Sram(pDevice);
+		return false;
+	}
+	return true;
 }
-- 
cgit 


From fc044ac39c19f7833ee1e5c4d4e4870e97184b3d Mon Sep 17 00:00:00 2001
From: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Date: Fri, 18 Oct 2013 00:22:24 +0530
Subject: staging: vt6656: removal of braces under if-control statement

Removed braces under if-else control flow statement whenever
there is only one statement under if-else control statement
to comply with linux coding style

Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/firmware.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/vt6656/firmware.c b/drivers/staging/vt6656/firmware.c
index 2d7501bf6938..52d4e964584d 100644
--- a/drivers/staging/vt6656/firmware.c
+++ b/drivers/staging/vt6656/firmware.c
@@ -108,11 +108,10 @@ int FIRMWAREbBrach2Sram(struct vnt_private *pDevice)
 					0x0000,
 					0,
 					NULL);
-	if (NdisStatus != STATUS_SUCCESS) {
+	if (NdisStatus != STATUS_SUCCESS)
 		return (false);
-	} else {
+	else
 		return (true);
-	}
 }
 
 int FIRMWAREbCheckVersion(struct vnt_private *pDevice)
-- 
cgit 


From 5a69f36db385a7f5f8072a7a10656e361f3d3e12 Mon Sep 17 00:00:00 2001
From: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Date: Fri, 18 Oct 2013 00:22:25 +0530
Subject: staging: vt6656: removed unnecessary parentheses in return statement

There was parentheses around return statement's value which
was not required since return statement is not a function.
Hence removed the parentheses to eliminate the checkpatch error
which states:
	ERROR: return is not a function, parentheses are not required

Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/firmware.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/vt6656/firmware.c b/drivers/staging/vt6656/firmware.c
index 52d4e964584d..c38c45ed080e 100644
--- a/drivers/staging/vt6656/firmware.c
+++ b/drivers/staging/vt6656/firmware.c
@@ -109,9 +109,9 @@ int FIRMWAREbBrach2Sram(struct vnt_private *pDevice)
 					0,
 					NULL);
 	if (NdisStatus != STATUS_SUCCESS)
-		return (false);
+		return false;
 	else
-		return (true);
+		return true;
 }
 
 int FIRMWAREbCheckVersion(struct vnt_private *pDevice)
-- 
cgit 


From efbe51829fde64f52367b53f5dcfc60c474b88d9 Mon Sep 17 00:00:00 2001
From: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Date: Fri, 18 Oct 2013 00:22:26 +0530
Subject: staging: vt6656: removed C99-style comments

Linux style for comment is C89 style "/* */" and it
doesn't prefer C99-style comment "//...". Hence replaced
C99-style comments used in code by C89 style comment to
comply with linux coding style

Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/firmware.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/vt6656/firmware.c b/drivers/staging/vt6656/firmware.c
index c38c45ed080e..126a024c2a57 100644
--- a/drivers/staging/vt6656/firmware.c
+++ b/drivers/staging/vt6656/firmware.c
@@ -36,7 +36,7 @@
 #include "rndis.h"
 
 static int msglevel = MSG_LEVEL_INFO;
-//static int msglevel = MSG_LEVEL_DEBUG;
+/* static int msglevel = MSG_LEVEL_DEBUG; */
 
 #define FIRMWARE_VERSION	0x133		/* version 1.51 */
 #define FIRMWARE_NAME		"vntwusb.fw"
@@ -136,7 +136,7 @@ int FIRMWAREbCheckVersion(struct vnt_private *pDevice)
 	}
 	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Version [%04x]\n", pDevice->wFirmwareVersion);
 	if (pDevice->wFirmwareVersion < FIRMWARE_VERSION) {
-		// branch to loader for download new firmware
+		/* branch to loader for download new firmware */
 		FIRMWAREbBrach2Sram(pDevice);
 		return false;
 	}
-- 
cgit 


From 1c3e56f99c91cd07fb75b7eb077a7a699d74450a Mon Sep 17 00:00:00 2001
From: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Date: Fri, 18 Oct 2013 00:22:27 +0530
Subject: staging: vt6656: removed line over 80 chars warning

Removed the checkpatch warning of line over 80 chars
by breaking the long line into sensible chunks of 2 lines
to comply with coding style

Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/firmware.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/vt6656/firmware.c b/drivers/staging/vt6656/firmware.c
index 126a024c2a57..cd2ea76c8b1e 100644
--- a/drivers/staging/vt6656/firmware.c
+++ b/drivers/staging/vt6656/firmware.c
@@ -125,7 +125,8 @@ int FIRMWAREbCheckVersion(struct vnt_private *pDevice)
 					2,
 					(u8 *) &(pDevice->wFirmwareVersion));
 
-	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Version [%04x]\n", pDevice->wFirmwareVersion);
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Version [%04x]\n",
+						pDevice->wFirmwareVersion);
 	if (ntStatus != STATUS_SUCCESS) {
 		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Invalid.\n");
 		return false;
@@ -134,7 +135,8 @@ int FIRMWAREbCheckVersion(struct vnt_private *pDevice)
 		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"In Loader.\n");
 		return false;
 	}
-	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Version [%04x]\n", pDevice->wFirmwareVersion);
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Firmware Version [%04x]\n",
+						pDevice->wFirmwareVersion);
 	if (pDevice->wFirmwareVersion < FIRMWARE_VERSION) {
 		/* branch to loader for download new firmware */
 		FIRMWAREbBrach2Sram(pDevice);
-- 
cgit 


From a8f23d8f8af43d49cd3331681913b76e4951e1a4 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Thu, 17 Oct 2013 17:38:29 -0300
Subject: perf trace: Improve messages related to
 /proc/sys/kernel/perf_event_paranoid

kernel/events/core.c has:

  /*
   * perf event paranoia level:
   *  -1 - not paranoid at all
   *   0 - disallow raw tracepoint access for unpriv
   *   1 - disallow cpu events for unpriv
   *   2 - disallow kernel profiling for unpriv
   */
  int sysctl_perf_event_paranoid __read_mostly = 1;

So, with the default being 1, a non-root user can trace his stuff:

  [acme@zoo ~]$ cat /proc/sys/kernel/perf_event_paranoid
  1
  [acme@zoo ~]$ yes > /dev/null &
  [1] 15338
  [acme@zoo ~]$ trace -p 15338 | head -5
       0.005 ( 0.005 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096
       0.045 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096
       0.085 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096
       0.125 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096
       0.165 ( 0.001 ms): write(fd: 1</dev/null>, buf: 0x7fe6db765000, count: 4096 ) = 4096
  [acme@zoo ~]$
  [acme@zoo ~]$ trace --duration 1 sleep 1
    1002.148 (1001.218 ms): nanosleep(rqtp: 0x7fff46c79250                           ) = 0
  [acme@zoo ~]$
  [acme@zoo ~]$ trace -- usleep 1 | tail -5
       0.905 ( 0.002 ms): brk(                                                     ) = 0x1c82000
       0.910 ( 0.003 ms): brk(brk: 0x1ca3000                                       ) = 0x1ca3000
       0.913 ( 0.001 ms): brk(                                                     ) = 0x1ca3000
       0.990 ( 0.059 ms): nanosleep(rqtp: 0x7fffe31a3280                           ) = 0
       0.995 ( 0.000 ms): exit_group(
  [acme@zoo ~]$

But can't do system wide tracing:

  [acme@zoo ~]$ trace
  Error:	Operation not permitted.
  Hint:	Check /proc/sys/kernel/perf_event_paranoid setting.
  Hint:	For system wide tracing it needs to be set to -1.
  Hint:	The current value is 1.
  [acme@zoo ~]$

  [acme@zoo ~]$ trace --cpu 0
  Error:	Operation not permitted.
  Hint:	Check /proc/sys/kernel/perf_event_paranoid setting.
  Hint:	For system wide tracing it needs to be set to -1.
  Hint:	The current value is 1.
  [acme@zoo ~]$

If the paranoid level is >= 2, i.e. turn this perf stuff off for !root users:

  [acme@zoo ~]$ sudo sh -c 'echo 2 > /proc/sys/kernel/perf_event_paranoid'
  [acme@zoo ~]$ cat /proc/sys/kernel/perf_event_paranoid
  2
  [acme@zoo ~]$
  [acme@zoo ~]$ trace usleep 1
  Error:	Permission denied.
  Hint:	Check /proc/sys/kernel/perf_event_paranoid setting.
  Hint:	For your workloads it needs to be <= 1
  Hint:	For system wide tracing it needs to be set to -1.
  Hint:	The current value is 2.
  [acme@zoo ~]$
  [acme@zoo ~]$ trace
  Error:	Permission denied.
  Hint:	Check /proc/sys/kernel/perf_event_paranoid setting.
  Hint:	For your workloads it needs to be <= 1
  Hint:	For system wide tracing it needs to be set to -1.
  Hint:	The current value is 2.
  [acme@zoo ~]$
  [acme@zoo ~]$ trace --cpu 1
  Error:	Permission denied.
  Hint:	Check /proc/sys/kernel/perf_event_paranoid setting.
  Hint:	For your workloads it needs to be <= 1
  Hint:	For system wide tracing it needs to be set to -1.
  Hint:	The current value is 2.
  [acme@zoo ~]$

If the user manages to get what he/she wants, convincing root not
to be paranoid at all...

  [root@zoo ~]# echo -1 > /proc/sys/kernel/perf_event_paranoid
  [root@zoo ~]# cat /proc/sys/kernel/perf_event_paranoid
  -1
  [root@zoo ~]#

  [acme@zoo ~]$ ps -eo user,pid,comm | grep Xorg
  root       729 Xorg
  [acme@zoo ~]$
  [acme@zoo ~]$ trace -a --duration 0.001 -e \!select,ioctl,writev | grep Xorg  | head -5
      23.143 ( 0.003 ms): Xorg/729 setitimer(which: REAL, value: 0x7fffaadf16e0 ) = 0
      23.152 ( 0.004 ms): Xorg/729 read(fd: 31, buf: 0x2544af0, count: 4096     ) = 8
      23.161 ( 0.002 ms): Xorg/729 read(fd: 31, buf: 0x2544af0, count: 4096     ) = -1 EAGAIN Resource temporarily unavailable
      23.175 ( 0.002 ms): Xorg/729 setitimer(which: REAL, value: 0x7fffaadf16e0 ) = 0
      23.235 ( 0.002 ms): Xorg/729 setitimer(which: REAL, value: 0x7fffaadf16e0 ) = 0
  [acme@zoo ~]$

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-di28olfwd28rvkox7v3hqhu1@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 17 +++++++++++------
 tools/perf/util/evlist.c   | 36 ++++++++++++++++++++++++++++++++++++
 tools/perf/util/evlist.h   |  1 +
 3 files changed, 48 insertions(+), 6 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 78b0d6a5fdff..db959ac3d46e 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1713,10 +1713,8 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
 	}
 
 	err = perf_evlist__open(evlist);
-	if (err < 0) {
-		fprintf(trace->output, "Couldn't create the events: %s\n", strerror(errno));
-		goto out_delete_maps;
-	}
+	if (err < 0)
+		goto out_error_open;
 
 	err = perf_evlist__mmap(evlist, UINT_MAX, false);
 	if (err < 0) {
@@ -1813,14 +1811,21 @@ out_delete_evlist:
 out:
 	trace->live = false;
 	return err;
-out_error_tp:
 {
 	char errbuf[BUFSIZ];
+
+out_error_tp:
 	perf_evlist__strerror_tp(evlist, errno, errbuf, sizeof(errbuf));
+	goto out_error;
+
+out_error_open:
+	perf_evlist__strerror_open(evlist, errno, errbuf, sizeof(errbuf));
+
+out_error:
 	fprintf(trace->output, "%s\n", errbuf);
-}
 	goto out_delete_evlist;
 }
+}
 
 static int trace__replay(struct trace *trace)
 {
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 6737420891cd..0b5425b4d8d6 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1153,3 +1153,39 @@ int perf_evlist__strerror_tp(struct perf_evlist *evlist __maybe_unused,
 
 	return 0;
 }
+
+int perf_evlist__strerror_open(struct perf_evlist *evlist __maybe_unused,
+			       int err, char *buf, size_t size)
+{
+	int printed, value;
+	char sbuf[128], *emsg = strerror_r(err, sbuf, sizeof(sbuf));
+
+	switch (err) {
+	case EACCES:
+	case EPERM:
+		printed = scnprintf(buf, size,
+				    "Error:\t%s.\n"
+				    "Hint:\tCheck /proc/sys/kernel/perf_event_paranoid setting.", emsg);
+
+		if (filename__read_int("/proc/sys/kernel/perf_event_paranoid", &value))
+			break;
+
+		printed += scnprintf(buf + printed, size - printed, "\nHint:\t");
+
+		if (value >= 2) {
+			printed += scnprintf(buf + printed, size - printed,
+					     "For your workloads it needs to be <= 1\nHint:\t");
+		}
+		printed += scnprintf(buf + printed, size - printed,
+				     "For system wide tracing it needs to be set to -1");
+
+		printed += scnprintf(buf + printed, size - printed,
+				    ".\nHint:\tThe current value is %d.", value);
+		break;
+	default:
+		scnprintf(buf, size, "%s", emsg);
+		break;
+	}
+
+	return 0;
+}
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 386de1036442..7f8f1aeb9cfe 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -169,6 +169,7 @@ static inline struct perf_evsel *perf_evlist__last(struct perf_evlist *evlist)
 size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp);
 
 int perf_evlist__strerror_tp(struct perf_evlist *evlist, int err, char *buf, size_t size);
+int perf_evlist__strerror_open(struct perf_evlist *evlist, int err, char *buf, size_t size);
 
 static inline unsigned int perf_mmap__read_head(struct perf_mmap *mm)
 {
-- 
cgit 


From d4f7ecf72819932e0f0a2221328d5eb4e28cc059 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Wed, 11 Sep 2013 17:02:38 +0300
Subject: PM / QoS: simplify pm_qos_power_write()

Let kstrtos32_from_user() do the necessary calls and checks.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 kernel/power/qos.c | 26 ++++----------------------
 1 file changed, 4 insertions(+), 22 deletions(-)

diff --git a/kernel/power/qos.c b/kernel/power/qos.c
index a394297f8b2f..8dff9b48075a 100644
--- a/kernel/power/qos.c
+++ b/kernel/power/qos.c
@@ -558,30 +558,12 @@ static ssize_t pm_qos_power_write(struct file *filp, const char __user *buf,
 	if (count == sizeof(s32)) {
 		if (copy_from_user(&value, buf, sizeof(s32)))
 			return -EFAULT;
-	} else if (count <= 11) { /* ASCII perhaps? */
-		char ascii_value[11];
-		unsigned long int ulval;
+	} else {
 		int ret;
 
-		if (copy_from_user(ascii_value, buf, count))
-			return -EFAULT;
-
-		if (count > 10) {
-			if (ascii_value[10] == '\n')
-				ascii_value[10] = '\0';
-			else
-				return -EINVAL;
-		} else {
-			ascii_value[count] = '\0';
-		}
-		ret = kstrtoul(ascii_value, 16, &ulval);
-		if (ret) {
-			pr_debug("%s, 0x%lx, 0x%x\n", ascii_value, ulval, ret);
-			return -EINVAL;
-		}
-		value = (s32)lower_32_bits(ulval);
-	} else {
-		return -EINVAL;
+		ret = kstrtos32_from_user(buf, count, 16, &value);
+		if (ret)
+			return ret;
 	}
 
 	req = filp->private_data;
-- 
cgit 


From ebd1e33bb2167798197e79d277d7ead14013e489 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 17 Oct 2013 10:54:46 -0700
Subject: Bluetooth: Expose auto_accept_delay debugfs only when SSP is
 supported

The auto_accept_delay debugfs entry is only valid for BR/EDR capable
controllers that also support SSP. If SSP is not available or it is
a LE-only single mode controller this value has no affect and so do
not expose it.

Since the value can be actually changed, switch the permissions
to 0644 to clearly indicate that the value is indeed writeable.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c  | 29 +++++++++++++++++++++++++++++
 net/bluetooth/hci_sysfs.c | 31 -------------------------------
 2 files changed, 29 insertions(+), 31 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 73c8def0c327..bb95dddb5e50 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -93,6 +93,31 @@ static const struct file_operations inquiry_cache_fops = {
 	.release	= single_release,
 };
 
+static int auto_accept_delay_set(void *data, u64 val)
+{
+	struct hci_dev *hdev = data;
+
+	hci_dev_lock(hdev);
+	hdev->auto_accept_delay = val;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int auto_accept_delay_get(void *data, u64 *val)
+{
+	struct hci_dev *hdev = data;
+
+	hci_dev_lock(hdev);
+	*val = hdev->auto_accept_delay;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
+			auto_accept_delay_set, "%llu\n");
+
 /* ---- HCI requests ---- */
 
 static void hci_req_sync_complete(struct hci_dev *hdev, u8 result)
@@ -787,6 +812,10 @@ static int __hci_init(struct hci_dev *hdev)
 				    hdev, &inquiry_cache_fops);
 	}
 
+	if (lmp_ssp_capable(hdev))
+		debugfs_create_file("auto_accept_delay", 0644, hdev->debugfs,
+				    hdev, &auto_accept_delay_fops);
+
 	return 0;
 }
 
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 65ecb9e6fdb7..a14196034bab 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -466,35 +466,6 @@ static const struct file_operations uuids_fops = {
 	.release	= single_release,
 };
 
-static int auto_accept_delay_set(void *data, u64 val)
-{
-	struct hci_dev *hdev = data;
-
-	hci_dev_lock(hdev);
-
-	hdev->auto_accept_delay = val;
-
-	hci_dev_unlock(hdev);
-
-	return 0;
-}
-
-static int auto_accept_delay_get(void *data, u64 *val)
-{
-	struct hci_dev *hdev = data;
-
-	hci_dev_lock(hdev);
-
-	*val = hdev->auto_accept_delay;
-
-	hci_dev_unlock(hdev);
-
-	return 0;
-}
-
-DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
-			auto_accept_delay_set, "%llu\n");
-
 void hci_init_sysfs(struct hci_dev *hdev)
 {
 	struct device *dev = &hdev->dev;
@@ -531,8 +502,6 @@ int hci_add_sysfs(struct hci_dev *hdev)
 
 	debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops);
 
-	debugfs_create_file("auto_accept_delay", 0444, hdev->debugfs, hdev,
-			    &auto_accept_delay_fops);
 	return 0;
 }
 
-- 
cgit 


From e7b8fc92867cf161ce8182ac4cbee2bed7f16d90 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 17 Oct 2013 11:45:09 -0700
Subject: Bluetooth: Expose static address value for LE capable controllers

For LE capable controllers, the static address can be configured. For
debugging purposes expose the value in debugfs.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index bb95dddb5e50..3c1014c2dcde 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -118,6 +118,29 @@ static int auto_accept_delay_get(void *data, u64 *val)
 DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
 			auto_accept_delay_set, "%llu\n");
 
+static int static_address_show(struct seq_file *f, void *p)
+{
+	struct hci_dev *hdev = f->private;
+
+	hci_dev_lock(hdev);
+	seq_printf(f, "%pMR\n", &hdev->static_addr);
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int static_address_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, static_address_show, inode->i_private);
+}
+
+static const struct file_operations static_address_fops = {
+	.open		= static_address_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 /* ---- HCI requests ---- */
 
 static void hci_req_sync_complete(struct hci_dev *hdev, u8 result)
@@ -816,6 +839,10 @@ static int __hci_init(struct hci_dev *hdev)
 		debugfs_create_file("auto_accept_delay", 0644, hdev->debugfs,
 				    hdev, &auto_accept_delay_fops);
 
+	if (lmp_le_capable(hdev))
+		debugfs_create_file("static_address", 0444, hdev->debugfs,
+				   hdev, &static_address_fops);
+
 	return 0;
 }
 
-- 
cgit 


From 041000b94276da0debf911494f0825571b2f26fb Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 17 Oct 2013 12:02:31 -0700
Subject: Bluetooth: Expose current voice setting in debugfs

For easier debugging of the current voice setting, expose the value
in debugfs if the controller is BR/EDR capable.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 3c1014c2dcde..b7c4ada1beb6 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -93,6 +93,20 @@ static const struct file_operations inquiry_cache_fops = {
 	.release	= single_release,
 };
 
+static int voice_setting_get(void *data, u64 *val)
+{
+	struct hci_dev *hdev = data;
+
+	hci_dev_lock(hdev);
+	*val = hdev->voice_setting;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(voice_setting_fops, voice_setting_get,
+			NULL, "0x%4.4llx\n");
+
 static int auto_accept_delay_set(void *data, u64 val)
 {
 	struct hci_dev *hdev = data;
@@ -833,6 +847,8 @@ static int __hci_init(struct hci_dev *hdev)
 	if (lmp_bredr_capable(hdev)) {
 		debugfs_create_file("inquiry_cache", 0444, hdev->debugfs,
 				    hdev, &inquiry_cache_fops);
+		debugfs_create_file("voice_setting", 0444, hdev->debugfs,
+				    hdev, &voice_setting_fops);
 	}
 
 	if (lmp_ssp_capable(hdev))
-- 
cgit 


From a814613b9a32d9ab9578d9dab396265c826d37f0 Mon Sep 17 00:00:00 2001
From: Lan Tianyu <tianyu.lan@intel.com>
Date: Wed, 11 Sep 2013 20:49:57 +0800
Subject: cpufreq / governor: Remove fossil comment

cpufreq_set_policy() has been changed to origin __cpufreq_set_policy()
and policy->lock has been converted to rewrite lock by commit 5a01f2.
So remove the comment.

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq_userspace.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/drivers/cpufreq/cpufreq_userspace.c b/drivers/cpufreq/cpufreq_userspace.c
index 03078090b5f7..4dbf1db16aca 100644
--- a/drivers/cpufreq/cpufreq_userspace.c
+++ b/drivers/cpufreq/cpufreq_userspace.c
@@ -38,18 +38,7 @@ static int cpufreq_set(struct cpufreq_policy *policy, unsigned int freq)
 	if (!per_cpu(cpu_is_managed, policy->cpu))
 		goto err;
 
-	/*
-	 * We're safe from concurrent calls to ->target() here
-	 * as we hold the userspace_mutex lock. If we were calling
-	 * cpufreq_driver_target, a deadlock situation might occur:
-	 * A: cpufreq_set (lock userspace_mutex) ->
-	 *      cpufreq_driver_target(lock policy->lock)
-	 * B: cpufreq_set_policy(lock policy->lock) ->
-	 *      __cpufreq_governor ->
-	 *         cpufreq_governor_userspace (lock userspace_mutex)
-	 */
 	ret = __cpufreq_driver_target(policy, freq, CPUFREQ_RELATION_L);
-
  err:
 	mutex_unlock(&userspace_mutex);
 	return ret;
-- 
cgit 


From bf94d09ddacd3e2e3ebb602fd1826982b0ce825f Mon Sep 17 00:00:00 2001
From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Sun, 13 Oct 2013 10:36:30 +0200
Subject: ARM: davinci: convert to clockevents_config_and_register
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

clockevents_config_and_register is superior compared to setting
shift/mult and {min,max}_delta_ns by hand.

Tested-by: Prabhakar Lad <prabhakar.csengg@gmail.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
[nsekhar@ti.com: fix an alignment related checkpatch warning]
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
---
 arch/arm/mach-davinci/time.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/arch/arm/mach-davinci/time.c b/arch/arm/mach-davinci/time.c
index 7a55b5c95971..ef2645a6f39f 100644
--- a/arch/arm/mach-davinci/time.c
+++ b/arch/arm/mach-davinci/time.c
@@ -331,7 +331,6 @@ static void davinci_set_mode(enum clock_event_mode mode,
 
 static struct clock_event_device clockevent_davinci = {
 	.features       = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
-	.shift		= 32,
 	.set_next_event	= davinci_set_next_event,
 	.set_mode	= davinci_set_mode,
 };
@@ -397,14 +396,10 @@ void __init davinci_timer_init(void)
 
 	/* setup clockevent */
 	clockevent_davinci.name = id_to_name[timers[TID_CLOCKEVENT].id];
-	clockevent_davinci.mult = div_sc(davinci_clock_tick_rate, NSEC_PER_SEC,
-					 clockevent_davinci.shift);
-	clockevent_davinci.max_delta_ns =
-		clockevent_delta2ns(0xfffffffe, &clockevent_davinci);
-	clockevent_davinci.min_delta_ns = 50000; /* 50 usec */
 
 	clockevent_davinci.cpumask = cpumask_of(0);
-	clockevents_register_device(&clockevent_davinci);
+	clockevents_config_and_register(&clockevent_davinci,
+					davinci_clock_tick_rate, 1, 0xfffffffe);
 
 	for (i=0; i< ARRAY_SIZE(timers); i++)
 		timer32_config(&timers[i]);
-- 
cgit 


From 2918ad14cc7e16f38206185dbc65f980ffc4ec6c Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Wed, 16 Oct 2013 21:45:00 +0100
Subject: staging:iio:lpc32xx_adc: Fix IRQ check

The test in the lpc32xx_adc driver which checks whether the IRQ number returned
by platform_get_irq() has multiple problems. It accepts 0 even though this is an
invalid IRQ. It also rejects IRQ numbers that are larger or equal than NR_IRQS.
First of all drivers should never need to reference NR_IRQS and secondly with
CONFIG_SPARSE_IRQ NR_IRQS is not the upper limit, so the check might reject
valid IRQ numbers. This patch modifies the check to only test against less or
equal to 0.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Roland Stigge <stigge@antcom.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/lpc32xx_adc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/iio/adc/lpc32xx_adc.c b/drivers/staging/iio/adc/lpc32xx_adc.c
index ce7ff3e6cd21..ef0a21d8ce15 100644
--- a/drivers/staging/iio/adc/lpc32xx_adc.c
+++ b/drivers/staging/iio/adc/lpc32xx_adc.c
@@ -160,7 +160,7 @@ static int lpc32xx_adc_probe(struct platform_device *pdev)
 	}
 
 	irq = platform_get_irq(pdev, 0);
-	if ((irq < 0) || (irq >= NR_IRQS)) {
+	if (irq <= 0) {
 		dev_err(&pdev->dev, "failed getting interrupt resource\n");
 		return -EINVAL;
 	}
-- 
cgit 


From a47f6e08edd3fbb915a79f0b4d23cbc7586ef897 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Wed, 16 Oct 2013 21:45:00 +0100
Subject: staging:iio:spear_adc: Fix IRQ check

The test in the spear_adc driver which checks whether the IRQ number returned
by platform_get_irq() has multiple problems. It accepts 0 even though this is
an invalid IRQ. It also rejects IRQ numbers that are larger or equal than
NR_IRQS. First of all drivers should never need to reference NR_IRQS and
secondly with CONFIG_SPARSE_IRQ NR_IRQS is not the upper limit, so the check
might reject valid IRQ numbers. This patch modifies the check to only test
against less or equal to 0.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Stefan Roese <sr@denx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/spear_adc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/iio/adc/spear_adc.c b/drivers/staging/iio/adc/spear_adc.c
index e6555b6d8bcb..970d9edc73b6 100644
--- a/drivers/staging/iio/adc/spear_adc.c
+++ b/drivers/staging/iio/adc/spear_adc.c
@@ -333,7 +333,7 @@ static int spear_adc_probe(struct platform_device *pdev)
 	}
 
 	irq = platform_get_irq(pdev, 0);
-	if ((irq < 0) || (irq >= NR_IRQS)) {
+	if (irq <= 0) {
 		dev_err(dev, "failed getting interrupt resource\n");
 		ret = -EINVAL;
 		goto errout3;
-- 
cgit 


From 58d5ec8f8ee318b26b29207874fbaee626973952 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Tue, 8 Oct 2013 18:38:13 +0100
Subject: ARM: KVM: Yield CPU when vcpu executes a WFE

On an (even slightly) oversubscribed system, spinlocks are quickly
becoming a bottleneck, as some vcpus are spinning, waiting for a
lock to be released, while the vcpu holding the lock may not be
running at all.

This creates contention, and the observed slowdown is 40x for
hackbench. No, this isn't a typo.

The solution is to trap blocking WFEs and tell KVM that we're
now spinning. This ensures that other vpus will get a scheduling
boost, allowing the lock to be released more quickly. Also, using
CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT slightly improves the performance
when the VM is severely overcommited.

Quick test to estimate the performance: hackbench 1 process 1000

2xA15 host (baseline):	1.843s

2xA15 guest w/o patch:	2.083s
4xA15 guest w/o patch:	80.212s
8xA15 guest w/o patch:	Could not be bothered to find out

2xA15 guest w/ patch:	2.102s
4xA15 guest w/ patch:	3.205s
8xA15 guest w/ patch:	6.887s

So we go from a 40x degradation to 1.5x in the 2x overcommit case,
which is vaguely more acceptable.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm/include/asm/kvm_arm.h | 4 +++-
 arch/arm/kvm/Kconfig           | 1 +
 arch/arm/kvm/handle_exit.c     | 6 +++++-
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/arm/include/asm/kvm_arm.h b/arch/arm/include/asm/kvm_arm.h
index d556f03bca17..fe395b7b1ce2 100644
--- a/arch/arm/include/asm/kvm_arm.h
+++ b/arch/arm/include/asm/kvm_arm.h
@@ -67,7 +67,7 @@
  */
 #define HCR_GUEST_MASK (HCR_TSC | HCR_TSW | HCR_TWI | HCR_VM | HCR_BSU_IS | \
 			HCR_FB | HCR_TAC | HCR_AMO | HCR_IMO | HCR_FMO | \
-			HCR_SWIO | HCR_TIDCP)
+			HCR_TWE | HCR_SWIO | HCR_TIDCP)
 #define HCR_VIRT_EXCP_MASK (HCR_VA | HCR_VI | HCR_VF)
 
 /* System Control Register (SCTLR) bits */
@@ -208,6 +208,8 @@
 #define HSR_EC_DABT	(0x24)
 #define HSR_EC_DABT_HYP	(0x25)
 
+#define HSR_WFI_IS_WFE		(1U << 0)
+
 #define HSR_HVC_IMM_MASK	((1UL << 16) - 1)
 
 #define HSR_DABT_S1PTW		(1U << 7)
diff --git a/arch/arm/kvm/Kconfig b/arch/arm/kvm/Kconfig
index ebf5015508b5..466bd299b1a8 100644
--- a/arch/arm/kvm/Kconfig
+++ b/arch/arm/kvm/Kconfig
@@ -20,6 +20,7 @@ config KVM
 	bool "Kernel-based Virtual Machine (KVM) support"
 	select PREEMPT_NOTIFIERS
 	select ANON_INODES
+	select HAVE_KVM_CPU_RELAX_INTERCEPT
 	select KVM_MMIO
 	select KVM_ARM_HOST
 	depends on ARM_VIRT_EXT && ARM_LPAE
diff --git a/arch/arm/kvm/handle_exit.c b/arch/arm/kvm/handle_exit.c
index df4c82d47ad7..c4c496f7619c 100644
--- a/arch/arm/kvm/handle_exit.c
+++ b/arch/arm/kvm/handle_exit.c
@@ -84,7 +84,11 @@ static int handle_dabt_hyp(struct kvm_vcpu *vcpu, struct kvm_run *run)
 static int kvm_handle_wfi(struct kvm_vcpu *vcpu, struct kvm_run *run)
 {
 	trace_kvm_wfi(*vcpu_pc(vcpu));
-	kvm_vcpu_block(vcpu);
+	if (kvm_vcpu_get_hsr(vcpu) & HSR_WFI_IS_WFE)
+		kvm_vcpu_on_spin(vcpu);
+	else
+		kvm_vcpu_block(vcpu);
+
 	return 1;
 }
 
-- 
cgit 


From 86ed81aa2e1ce05a4e7f0819f0dfc34e8d8fb910 Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Tue, 15 Oct 2013 18:10:42 -0700
Subject: KVM: ARM: Update comments for kvm_handle_wfi

Update comments to reflect what is really going on and add the TWE bit
to the comments in kvm_arm.h.

Also renames the function to kvm_handle_wfx like is done on arm64 for
consistency and uber-correctness.

Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm/include/asm/kvm_arm.h |  1 +
 arch/arm/kvm/handle_exit.c     | 14 ++++++++------
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/arch/arm/include/asm/kvm_arm.h b/arch/arm/include/asm/kvm_arm.h
index fe395b7b1ce2..1d3153c7eb41 100644
--- a/arch/arm/include/asm/kvm_arm.h
+++ b/arch/arm/include/asm/kvm_arm.h
@@ -57,6 +57,7 @@
  * TSC:		Trap SMC
  * TSW:		Trap cache operations by set/way
  * TWI:		Trap WFI
+ * TWE:		Trap WFE
  * TIDCP:	Trap L2CTLR/L2ECTLR
  * BSU_IS:	Upgrade barriers to the inner shareable domain
  * FB:		Force broadcast of all maintainance operations
diff --git a/arch/arm/kvm/handle_exit.c b/arch/arm/kvm/handle_exit.c
index c4c496f7619c..a92079011a83 100644
--- a/arch/arm/kvm/handle_exit.c
+++ b/arch/arm/kvm/handle_exit.c
@@ -73,15 +73,17 @@ static int handle_dabt_hyp(struct kvm_vcpu *vcpu, struct kvm_run *run)
 }
 
 /**
- * kvm_handle_wfi - handle a wait-for-interrupts instruction executed by a guest
+ * kvm_handle_wfx - handle a WFI or WFE instructions trapped in guests
  * @vcpu:	the vcpu pointer
  * @run:	the kvm_run structure pointer
  *
- * Simply sets the wait_for_interrupts flag on the vcpu structure, which will
- * halt execution of world-switches and schedule other host processes until
- * there is an incoming IRQ or FIQ to the VM.
+ * WFE: Yield the CPU and come back to this vcpu when the scheduler
+ * decides to.
+ * WFI: Simply call kvm_vcpu_block(), which will halt execution of
+ * world-switches and schedule other host processes until there is an
+ * incoming IRQ or FIQ to the VM.
  */
-static int kvm_handle_wfi(struct kvm_vcpu *vcpu, struct kvm_run *run)
+static int kvm_handle_wfx(struct kvm_vcpu *vcpu, struct kvm_run *run)
 {
 	trace_kvm_wfi(*vcpu_pc(vcpu));
 	if (kvm_vcpu_get_hsr(vcpu) & HSR_WFI_IS_WFE)
@@ -93,7 +95,7 @@ static int kvm_handle_wfi(struct kvm_vcpu *vcpu, struct kvm_run *run)
 }
 
 static exit_handle_fn arm_exit_handlers[] = {
-	[HSR_EC_WFI]		= kvm_handle_wfi,
+	[HSR_EC_WFI]		= kvm_handle_wfx,
 	[HSR_EC_CP15_32]	= kvm_handle_cp15_32,
 	[HSR_EC_CP15_64]	= kvm_handle_cp15_64,
 	[HSR_EC_CP14_MR]	= kvm_handle_cp14_access,
-- 
cgit 


From e590d451908329fee0515a4ec397154a16cfc8c4 Mon Sep 17 00:00:00 2001
From: Beomho Seo <beomho.seo@samsung.com>
Date: Thu, 17 Oct 2013 03:22:00 +0100
Subject: iio: cm36651: Add CM36651 proximity/light sensor

This patch adds a new driver for Capella CM36651 proximity and RGB sensor.

Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/light/Kconfig   |  11 +
 drivers/iio/light/Makefile  |   1 +
 drivers/iio/light/cm36651.c | 708 ++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 720 insertions(+)
 create mode 100644 drivers/iio/light/cm36651.c

diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig
index 0a25ae6b132e..f98c2b509254 100644
--- a/drivers/iio/light/Kconfig
+++ b/drivers/iio/light/Kconfig
@@ -27,6 +27,17 @@ config APDS9300
 	 To compile this driver as a module, choose M here: the
 	 module will be called apds9300.
 
+config CM36651
+	depends on I2C
+	tristate "CM36651 driver"
+	help
+	 Say Y here if you use cm36651.
+	 This option enables proximity & RGB sensor using
+	 Capella cm36651 device driver.
+
+	 To compile this driver as a module, choose M here:
+	 the module will be called cm36651.
+
 config GP2AP020A00F
 	tristate "Sharp GP2AP020A00F Proximity/ALS sensor"
 	depends on I2C
diff --git a/drivers/iio/light/Makefile b/drivers/iio/light/Makefile
index cef590f2ff00..daa327f39e04 100644
--- a/drivers/iio/light/Makefile
+++ b/drivers/iio/light/Makefile
@@ -5,6 +5,7 @@
 # When adding new entries keep the list in alphabetical order
 obj-$(CONFIG_ADJD_S311)		+= adjd_s311.o
 obj-$(CONFIG_APDS9300)		+= apds9300.o
+obj-$(CONFIG_CM36651)		+= cm36651.o
 obj-$(CONFIG_GP2AP020A00F)	+= gp2ap020a00f.o
 obj-$(CONFIG_HID_SENSOR_ALS)	+= hid-sensor-als.o
 obj-$(CONFIG_SENSORS_LM3533)	+= lm3533-als.o
diff --git a/drivers/iio/light/cm36651.c b/drivers/iio/light/cm36651.c
new file mode 100644
index 000000000000..21df57130018
--- /dev/null
+++ b/drivers/iio/light/cm36651.c
@@ -0,0 +1,708 @@
+/*
+ * Copyright (C) 2013 Samsung Electronics Co., Ltd.
+ * Author: Beomho Seo <beomho.seo@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General Public License version 2, as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/regulator/consumer.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/events.h>
+
+/* Slave address 0x19 for PS of 7 bit addressing protocol for I2C */
+#define CM36651_I2C_ADDR_PS		0x19
+/* Alert Response Address */
+#define CM36651_ARA			0x0C
+
+/* Ambient light sensor */
+#define CM36651_CS_CONF1		0x00
+#define CM36651_CS_CONF2		0x01
+#define CM36651_ALS_WH_M		0x02
+#define CM36651_ALS_WH_L		0x03
+#define CM36651_ALS_WL_M		0x04
+#define CM36651_ALS_WL_L		0x05
+#define CM36651_CS_CONF3		0x06
+#define CM36651_CS_CONF_REG_NUM		0x02
+
+/* Proximity sensor */
+#define CM36651_PS_CONF1		0x00
+#define CM36651_PS_THD			0x01
+#define CM36651_PS_CANC			0x02
+#define CM36651_PS_CONF2		0x03
+#define CM36651_PS_REG_NUM		0x04
+
+/* CS_CONF1 command code */
+#define CM36651_ALS_ENABLE		0x00
+#define CM36651_ALS_DISABLE		0x01
+#define CM36651_ALS_INT_EN		0x02
+#define CM36651_ALS_THRES		0x04
+
+/* CS_CONF2 command code */
+#define CM36651_CS_CONF2_DEFAULT_BIT	0x08
+
+/* CS_CONF3 channel integration time */
+#define CM36651_CS_IT1			0x00 /* Integration time 80000 usec */
+#define CM36651_CS_IT2			0x40 /* Integration time 160000 usec */
+#define CM36651_CS_IT3			0x80 /* Integration time 320000 usec */
+#define CM36651_CS_IT4			0xC0 /* Integration time 640000 usec */
+
+/* PS_CONF1 command code */
+#define CM36651_PS_ENABLE		0x00
+#define CM36651_PS_DISABLE		0x01
+#define CM36651_PS_INT_EN		0x02
+#define CM36651_PS_PERS2		0x04
+#define CM36651_PS_PERS3		0x08
+#define CM36651_PS_PERS4		0x0C
+
+/* PS_CONF1 command code: integration time */
+#define CM36651_PS_IT1			0x00 /* Integration time 320 usec */
+#define CM36651_PS_IT2			0x10 /* Integration time 420 usec */
+#define CM36651_PS_IT3			0x20 /* Integration time 520 usec */
+#define CM36651_PS_IT4			0x30 /* Integration time 640 usec */
+
+/* PS_CONF1 command code: duty ratio */
+#define CM36651_PS_DR1			0x00 /* Duty ratio 1/80 */
+#define CM36651_PS_DR2			0x40 /* Duty ratio 1/160 */
+#define CM36651_PS_DR3			0x80 /* Duty ratio 1/320 */
+#define CM36651_PS_DR4			0xC0 /* Duty ratio 1/640 */
+
+/* PS_THD command code */
+#define CM36651_PS_INITIAL_THD		0x05
+
+/* PS_CANC command code */
+#define CM36651_PS_CANC_DEFAULT		0x00
+
+/* PS_CONF2 command code */
+#define CM36651_PS_HYS1			0x00
+#define CM36651_PS_HYS2			0x01
+#define CM36651_PS_SMART_PERS_EN	0x02
+#define CM36651_PS_DIR_INT		0x04
+#define CM36651_PS_MS			0x10
+
+#define CM36651_CS_COLOR_NUM		4
+
+#define CM36651_CLOSE_PROXIMITY		0x32
+#define CM36651_FAR_PROXIMITY			0x33
+
+#define CM36651_CS_INT_TIME_AVAIL	"80000 160000 320000 640000"
+#define CM36651_PS_INT_TIME_AVAIL	"320 420 520 640"
+
+enum cm36651_operation_mode {
+	CM36651_LIGHT_EN,
+	CM36651_PROXIMITY_EN,
+	CM36651_PROXIMITY_EV_EN,
+};
+
+enum cm36651_light_channel_idx {
+	CM36651_LIGHT_CHANNEL_IDX_RED,
+	CM36651_LIGHT_CHANNEL_IDX_GREEN,
+	CM36651_LIGHT_CHANNEL_IDX_BLUE,
+	CM36651_LIGHT_CHANNEL_IDX_CLEAR,
+};
+
+enum cm36651_command {
+	CM36651_CMD_READ_RAW_LIGHT,
+	CM36651_CMD_READ_RAW_PROXIMITY,
+	CM36651_CMD_PROX_EV_EN,
+	CM36651_CMD_PROX_EV_DIS,
+};
+
+static const u8 cm36651_cs_reg[CM36651_CS_CONF_REG_NUM] = {
+	CM36651_CS_CONF1,
+	CM36651_CS_CONF2,
+};
+
+static const u8 cm36651_ps_reg[CM36651_PS_REG_NUM] = {
+	CM36651_PS_CONF1,
+	CM36651_PS_THD,
+	CM36651_PS_CANC,
+	CM36651_PS_CONF2,
+};
+
+struct cm36651_data {
+	const struct cm36651_platform_data *pdata;
+	struct i2c_client *client;
+	struct i2c_client *ps_client;
+	struct i2c_client *ara_client;
+	struct mutex lock;
+	struct regulator *vled_reg;
+	unsigned long flags;
+	int cs_int_time[CM36651_CS_COLOR_NUM];
+	int ps_int_time;
+	u8 cs_ctrl_regs[CM36651_CS_CONF_REG_NUM];
+	u8 ps_ctrl_regs[CM36651_PS_REG_NUM];
+	u16 color[CM36651_CS_COLOR_NUM];
+};
+
+static int cm36651_setup_reg(struct cm36651_data *cm36651)
+{
+	struct i2c_client *client = cm36651->client;
+	struct i2c_client *ps_client = cm36651->ps_client;
+	int i, ret;
+
+	/* CS initialization */
+	cm36651->cs_ctrl_regs[CM36651_CS_CONF1] = CM36651_ALS_ENABLE |
+							     CM36651_ALS_THRES;
+	cm36651->cs_ctrl_regs[CM36651_CS_CONF2] = CM36651_CS_CONF2_DEFAULT_BIT;
+
+	for (i = 0; i < CM36651_CS_CONF_REG_NUM; i++) {
+		ret = i2c_smbus_write_byte_data(client, cm36651_cs_reg[i],
+						     cm36651->cs_ctrl_regs[i]);
+		if (ret < 0)
+			return ret;
+	}
+
+	/* PS initialization */
+	cm36651->ps_ctrl_regs[CM36651_PS_CONF1] = CM36651_PS_ENABLE |
+								CM36651_PS_IT2;
+	cm36651->ps_ctrl_regs[CM36651_PS_THD] = CM36651_PS_INITIAL_THD;
+	cm36651->ps_ctrl_regs[CM36651_PS_CANC] = CM36651_PS_CANC_DEFAULT;
+	cm36651->ps_ctrl_regs[CM36651_PS_CONF2] = CM36651_PS_HYS2 |
+				CM36651_PS_DIR_INT | CM36651_PS_SMART_PERS_EN;
+
+	for (i = 0; i < CM36651_PS_REG_NUM; i++) {
+		ret = i2c_smbus_write_byte_data(ps_client, cm36651_ps_reg[i],
+						     cm36651->ps_ctrl_regs[i]);
+		if (ret < 0)
+			return ret;
+	}
+
+	/* Set shutdown mode */
+	ret = i2c_smbus_write_byte_data(client, CM36651_CS_CONF1,
+							  CM36651_ALS_DISABLE);
+	if (ret < 0)
+		return ret;
+
+	ret = i2c_smbus_write_byte_data(cm36651->ps_client,
+					 CM36651_PS_CONF1, CM36651_PS_DISABLE);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int cm36651_read_output(struct cm36651_data *cm36651,
+				struct iio_chan_spec const *chan, int *val)
+{
+	struct i2c_client *client = cm36651->client;
+	int ret = -EINVAL;
+
+	switch (chan->type) {
+	case IIO_LIGHT:
+		*val = i2c_smbus_read_word_data(client, chan->address);
+		if (*val < 0)
+			return ret;
+
+		ret = i2c_smbus_write_byte_data(client, CM36651_CS_CONF1,
+							CM36651_ALS_DISABLE);
+		if (ret < 0)
+			return ret;
+
+		ret = IIO_VAL_INT;
+		break;
+	case IIO_PROXIMITY:
+		*val = i2c_smbus_read_byte(cm36651->ps_client);
+		if (*val < 0)
+			return ret;
+
+		if (!test_bit(CM36651_PROXIMITY_EV_EN, &cm36651->flags)) {
+			ret = i2c_smbus_write_byte_data(cm36651->ps_client,
+					CM36651_PS_CONF1, CM36651_PS_DISABLE);
+			if (ret < 0)
+				return ret;
+		}
+
+		ret = IIO_VAL_INT;
+		break;
+	default:
+		break;
+	}
+
+	return ret;
+}
+
+static irqreturn_t cm36651_irq_handler(int irq, void *data)
+{
+	struct iio_dev *indio_dev = data;
+	struct cm36651_data *cm36651 = iio_priv(indio_dev);
+	struct i2c_client *client = cm36651->client;
+	int ev_dir, ret;
+	u64 ev_code;
+
+	/*
+	 * The PS INT pin is an active low signal that PS INT move logic low
+	 * when the object is detect. Once the MCU host received the PS INT
+	 * "LOW" signal, the Host needs to read the data at Alert Response
+	 * Address(ARA) to clear the PS INT signal. After clearing the PS
+	 * INT pin, the PS INT signal toggles from low to high.
+	 */
+	ret = i2c_smbus_read_byte(cm36651->ara_client);
+	if (ret < 0) {
+		dev_err(&client->dev,
+				"%s: Data read failed: %d\n", __func__, ret);
+		return IRQ_HANDLED;
+	}
+	switch (ret) {
+	case CM36651_CLOSE_PROXIMITY:
+		ev_dir = IIO_EV_DIR_RISING;
+		break;
+	case CM36651_FAR_PROXIMITY:
+		ev_dir = IIO_EV_DIR_FALLING;
+		break;
+	default:
+		dev_err(&client->dev,
+			"%s: Data read wrong: %d\n", __func__, ret);
+		return IRQ_HANDLED;
+	}
+
+	ev_code = IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY,
+				CM36651_CMD_READ_RAW_PROXIMITY,
+				IIO_EV_TYPE_THRESH, ev_dir);
+
+	iio_push_event(indio_dev, ev_code, iio_get_time_ns());
+
+	return IRQ_HANDLED;
+}
+
+static int cm36651_set_operation_mode(struct cm36651_data *cm36651, int cmd)
+{
+	struct i2c_client *client = cm36651->client;
+	struct i2c_client *ps_client = cm36651->ps_client;
+	int ret = -EINVAL;
+
+	switch (cmd) {
+	case CM36651_CMD_READ_RAW_LIGHT:
+		ret = i2c_smbus_write_byte_data(client, CM36651_CS_CONF1,
+				cm36651->cs_ctrl_regs[CM36651_CS_CONF1]);
+		break;
+	case CM36651_CMD_READ_RAW_PROXIMITY:
+		if (test_bit(CM36651_PROXIMITY_EV_EN, &cm36651->flags))
+			return CM36651_PROXIMITY_EV_EN;
+
+		ret = i2c_smbus_write_byte_data(ps_client, CM36651_PS_CONF1,
+				cm36651->ps_ctrl_regs[CM36651_PS_CONF1]);
+		break;
+	case CM36651_CMD_PROX_EV_EN:
+		if (test_bit(CM36651_PROXIMITY_EV_EN, &cm36651->flags)) {
+			dev_err(&client->dev,
+				"Already proximity event enable state\n");
+			return ret;
+		}
+		set_bit(CM36651_PROXIMITY_EV_EN, &cm36651->flags);
+
+		ret = i2c_smbus_write_byte_data(ps_client,
+			cm36651_ps_reg[CM36651_PS_CONF1],
+			CM36651_PS_INT_EN | CM36651_PS_PERS2 | CM36651_PS_IT2);
+
+		if (ret < 0) {
+			dev_err(&client->dev, "Proximity enable event failed\n");
+			return ret;
+		}
+		break;
+	case CM36651_CMD_PROX_EV_DIS:
+		if (!test_bit(CM36651_PROXIMITY_EV_EN, &cm36651->flags)) {
+			dev_err(&client->dev,
+				"Already proximity event disable state\n");
+			return ret;
+		}
+		clear_bit(CM36651_PROXIMITY_EV_EN, &cm36651->flags);
+		ret = i2c_smbus_write_byte_data(ps_client,
+					CM36651_PS_CONF1, CM36651_PS_DISABLE);
+		break;
+	}
+
+	if (ret < 0)
+		dev_err(&client->dev, "Write register failed\n");
+
+	return ret;
+}
+
+static int cm36651_read_channel(struct cm36651_data *cm36651,
+				struct iio_chan_spec const *chan, int *val)
+{
+	struct i2c_client *client = cm36651->client;
+	int cmd, ret;
+
+	if (chan->type == IIO_LIGHT)
+		cmd = CM36651_CMD_READ_RAW_LIGHT;
+	else if (chan->type == IIO_PROXIMITY)
+		cmd = CM36651_CMD_READ_RAW_PROXIMITY;
+	else
+		return -EINVAL;
+
+	ret = cm36651_set_operation_mode(cm36651, cmd);
+	if (ret < 0) {
+		dev_err(&client->dev, "CM36651 set operation mode failed\n");
+		return ret;
+	}
+	/* Delay for work after enable operation */
+	msleep(50);
+	ret = cm36651_read_output(cm36651, chan, val);
+	if (ret < 0) {
+		dev_err(&client->dev, "CM36651 read output failed\n");
+		return ret;
+	}
+
+	return ret;
+}
+
+static int cm36651_read_int_time(struct cm36651_data *cm36651,
+				struct iio_chan_spec const *chan, int *val)
+{
+	switch (chan->type) {
+	case IIO_LIGHT:
+		if (cm36651->cs_int_time[chan->address] == CM36651_CS_IT1)
+			*val = 80000;
+		else if (cm36651->cs_int_time[chan->address] == CM36651_CS_IT2)
+			*val = 160000;
+		else if (cm36651->cs_int_time[chan->address] == CM36651_CS_IT3)
+			*val = 320000;
+		else if (cm36651->cs_int_time[chan->address] == CM36651_CS_IT4)
+			*val = 640000;
+		else
+			return -EINVAL;
+		break;
+	case IIO_PROXIMITY:
+		if (cm36651->ps_int_time == CM36651_PS_IT1)
+			*val = 320;
+		else if (cm36651->ps_int_time == CM36651_PS_IT2)
+			*val = 420;
+		else if (cm36651->ps_int_time == CM36651_PS_IT3)
+			*val = 520;
+		else if (cm36651->ps_int_time == CM36651_PS_IT4)
+			*val = 640;
+		else
+			return -EINVAL;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return IIO_VAL_INT_PLUS_MICRO;
+}
+
+static int cm36651_write_int_time(struct cm36651_data *cm36651,
+				struct iio_chan_spec const *chan, int val)
+{
+	struct i2c_client *client = cm36651->client;
+	struct i2c_client *ps_client = cm36651->ps_client;
+	int int_time, ret;
+
+	switch (chan->type) {
+	case IIO_LIGHT:
+		if (val == 80000)
+			int_time = CM36651_CS_IT1;
+		else if (val == 160000)
+			int_time = CM36651_CS_IT2;
+		else if (val == 320000)
+			int_time = CM36651_CS_IT3;
+		else if (val == 640000)
+			int_time = CM36651_CS_IT4;
+		else
+			return -EINVAL;
+
+		ret = i2c_smbus_write_byte_data(client, CM36651_CS_CONF3,
+					   int_time >> 2 * (chan->address));
+		if (ret < 0) {
+			dev_err(&client->dev, "CS integration time write failed\n");
+			return ret;
+		}
+		cm36651->cs_int_time[chan->address] = int_time;
+		break;
+	case IIO_PROXIMITY:
+		if (val == 320)
+			int_time = CM36651_PS_IT1;
+		else if (val == 420)
+			int_time = CM36651_PS_IT2;
+		else if (val == 520)
+			int_time = CM36651_PS_IT3;
+		else if (val == 640)
+			int_time = CM36651_PS_IT4;
+		else
+			return -EINVAL;
+
+		ret = i2c_smbus_write_byte_data(ps_client,
+						CM36651_PS_CONF1, int_time);
+		if (ret < 0) {
+			dev_err(&client->dev, "PS integration time write failed\n");
+			return ret;
+		}
+		cm36651->ps_int_time = int_time;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return ret;
+}
+
+static int cm36651_read_raw(struct iio_dev *indio_dev,
+			    struct iio_chan_spec const *chan,
+			    int *val, int *val2, long mask)
+{
+	struct cm36651_data *cm36651 = iio_priv(indio_dev);
+	int ret;
+
+	mutex_lock(&cm36651->lock);
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		ret = cm36651_read_channel(cm36651, chan, val);
+		break;
+	case IIO_CHAN_INFO_INT_TIME:
+		ret = cm36651_read_int_time(cm36651, chan, val);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	mutex_unlock(&cm36651->lock);
+
+	return ret;
+}
+
+static int cm36651_write_raw(struct iio_dev *indio_dev,
+			     struct iio_chan_spec const *chan,
+			     int val, int val2, long mask)
+{
+	struct cm36651_data *cm36651 = iio_priv(indio_dev);
+	struct i2c_client *client = cm36651->client;
+	int ret = -EINVAL;
+
+	if (mask == IIO_CHAN_INFO_INT_TIME) {
+		ret = cm36651_write_int_time(cm36651, chan, val);
+		if (ret < 0)
+			dev_err(&client->dev, "Integration time write failed\n");
+	}
+
+	return ret;
+}
+
+static int cm36651_read_prox_thresh(struct iio_dev *indio_dev,
+					u64 event_code, int *val)
+{
+	struct cm36651_data *cm36651 = iio_priv(indio_dev);
+
+	*val = cm36651->ps_ctrl_regs[CM36651_PS_THD];
+
+	return 0;
+}
+
+static int cm36651_write_prox_thresh(struct iio_dev *indio_dev,
+					u64 event_code, int val)
+{
+	struct cm36651_data *cm36651 = iio_priv(indio_dev);
+	struct i2c_client *client = cm36651->client;
+	int ret;
+
+	if (val < 3 || val > 255)
+		return -EINVAL;
+
+	cm36651->ps_ctrl_regs[CM36651_PS_THD] = val;
+	ret = i2c_smbus_write_byte_data(cm36651->ps_client, CM36651_PS_THD,
+					cm36651->ps_ctrl_regs[CM36651_PS_THD]);
+
+	if (ret < 0) {
+		dev_err(&client->dev, "PS threshold write failed: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int cm36651_write_prox_event_config(struct iio_dev *indio_dev,
+					u64 event_code, int state)
+{
+	struct cm36651_data *cm36651 = iio_priv(indio_dev);
+	int cmd, ret = -EINVAL;
+
+	mutex_lock(&cm36651->lock);
+
+	cmd = state ? CM36651_CMD_PROX_EV_EN : CM36651_CMD_PROX_EV_DIS;
+	ret = cm36651_set_operation_mode(cm36651, cmd);
+
+	mutex_unlock(&cm36651->lock);
+
+	return ret;
+}
+
+static int cm36651_read_prox_event_config(struct iio_dev *indio_dev,
+							u64 event_code)
+{
+	struct cm36651_data *cm36651 = iio_priv(indio_dev);
+	int event_en;
+
+	mutex_lock(&cm36651->lock);
+
+	event_en = test_bit(CM36651_PROXIMITY_EV_EN, &cm36651->flags);
+
+	mutex_unlock(&cm36651->lock);
+
+	return event_en;
+}
+
+#define CM36651_LIGHT_CHANNEL(_color, _idx) {		\
+	.type = IIO_LIGHT,				\
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |	\
+			BIT(IIO_CHAN_INFO_INT_TIME),	\
+	.address = _idx,				\
+	.modified = 1,					\
+	.channel2 = IIO_MOD_LIGHT_##_color,		\
+}							\
+
+static const struct iio_chan_spec cm36651_channels[] = {
+	{
+		.type = IIO_PROXIMITY,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
+				BIT(IIO_CHAN_INFO_INT_TIME),
+		.event_mask = IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_EITHER)
+	},
+	CM36651_LIGHT_CHANNEL(RED, CM36651_LIGHT_CHANNEL_IDX_RED),
+	CM36651_LIGHT_CHANNEL(GREEN, CM36651_LIGHT_CHANNEL_IDX_GREEN),
+	CM36651_LIGHT_CHANNEL(BLUE, CM36651_LIGHT_CHANNEL_IDX_BLUE),
+	CM36651_LIGHT_CHANNEL(CLEAR, CM36651_LIGHT_CHANNEL_IDX_CLEAR),
+};
+
+static IIO_CONST_ATTR(in_illuminance_integration_time_available,
+					CM36651_CS_INT_TIME_AVAIL);
+static IIO_CONST_ATTR(in_proximity_integration_time_available,
+					CM36651_PS_INT_TIME_AVAIL);
+
+static struct attribute *cm36651_attributes[] = {
+	&iio_const_attr_in_illuminance_integration_time_available.dev_attr.attr,
+	&iio_const_attr_in_proximity_integration_time_available.dev_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group cm36651_attribute_group = {
+	.attrs = cm36651_attributes
+};
+
+static const struct iio_info cm36651_info = {
+	.driver_module		= THIS_MODULE,
+	.read_raw		= &cm36651_read_raw,
+	.write_raw		= &cm36651_write_raw,
+	.read_event_value	= &cm36651_read_prox_thresh,
+	.write_event_value	= &cm36651_write_prox_thresh,
+	.read_event_config	= &cm36651_read_prox_event_config,
+	.write_event_config	= &cm36651_write_prox_event_config,
+	.attrs			= &cm36651_attribute_group,
+};
+
+static int cm36651_probe(struct i2c_client *client,
+			     const struct i2c_device_id *id)
+{
+	struct cm36651_data *cm36651;
+	struct iio_dev *indio_dev;
+	int ret;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*cm36651));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	cm36651 = iio_priv(indio_dev);
+
+	cm36651->vled_reg = devm_regulator_get(&client->dev, "vled");
+	if (IS_ERR(cm36651->vled_reg)) {
+		dev_err(&client->dev, "get regulator vled failed\n");
+		return PTR_ERR(cm36651->vled_reg);
+	}
+
+	ret = regulator_enable(cm36651->vled_reg);
+	if (ret) {
+		dev_err(&client->dev, "enable regulator vled failed\n");
+		return ret;
+	}
+
+	i2c_set_clientdata(client, indio_dev);
+
+	cm36651->client = client;
+	cm36651->ps_client = i2c_new_dummy(client->adapter,
+						     CM36651_I2C_ADDR_PS);
+	cm36651->ara_client = i2c_new_dummy(client->adapter, CM36651_ARA);
+	mutex_init(&cm36651->lock);
+	indio_dev->dev.parent = &client->dev;
+	indio_dev->channels = cm36651_channels;
+	indio_dev->num_channels = ARRAY_SIZE(cm36651_channels);
+	indio_dev->info = &cm36651_info;
+	indio_dev->name = id->name;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+
+	ret = cm36651_setup_reg(cm36651);
+	if (ret) {
+		dev_err(&client->dev, "%s: register setup failed\n", __func__);
+		goto error_disable_reg;
+	}
+
+	ret = request_threaded_irq(client->irq, NULL, cm36651_irq_handler,
+					IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
+							"cm36651", indio_dev);
+	if (ret) {
+		dev_err(&client->dev, "%s: request irq failed\n", __func__);
+		goto error_disable_reg;
+	}
+
+	ret = iio_device_register(indio_dev);
+	if (ret) {
+		dev_err(&client->dev, "%s: regist device failed\n", __func__);
+		goto error_free_irq;
+	}
+
+	return 0;
+
+error_free_irq:
+	free_irq(client->irq, indio_dev);
+error_disable_reg:
+	regulator_disable(cm36651->vled_reg);
+	return ret;
+}
+
+static int cm36651_remove(struct i2c_client *client)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+	struct cm36651_data *cm36651 = iio_priv(indio_dev);
+
+	iio_device_unregister(indio_dev);
+	regulator_disable(cm36651->vled_reg);
+	free_irq(client->irq, indio_dev);
+
+	return 0;
+}
+
+static const struct i2c_device_id cm36651_id[] = {
+	{ "cm36651", 0 },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(i2c, cm36651_id);
+
+static const struct of_device_id cm36651_of_match[] = {
+	{ .compatible = "capella,cm36651" },
+	{ }
+};
+
+static struct i2c_driver cm36651_driver = {
+	.driver = {
+		.name	= "cm36651",
+		.of_match_table = of_match_ptr(cm36651_of_match),
+		.owner	= THIS_MODULE,
+	},
+	.probe		= cm36651_probe,
+	.remove		= cm36651_remove,
+	.id_table	= cm36651_id,
+};
+
+module_i2c_driver(cm36651_driver);
+
+MODULE_AUTHOR("Beomho Seo <beomho.seo@samsung.com>");
+MODULE_DESCRIPTION("CM36651 proximity/ambient light sensor driver");
+MODULE_LICENSE("GPL v2");
-- 
cgit 


From 701a0dc08809936a6d7ba76c347a92ee27b852ea Mon Sep 17 00:00:00 2001
From: Beomho Seo <beomho.seo@samsung.com>
Date: Thu, 17 Oct 2013 03:22:00 +0100
Subject: DT: Add documentation for cm36651 proximity/light sensor

This patch adds device tree binding documentation for CM36651 proximity/light sensor.

Signed-off-by: Beomho Seo <beomho.seo@samsung.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 .../devicetree/bindings/iio/light/cm36651.txt      | 26 ++++++++++++++++++++++
 .../devicetree/bindings/vendor-prefixes.txt        |  1 +
 2 files changed, 27 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/iio/light/cm36651.txt

diff --git a/Documentation/devicetree/bindings/iio/light/cm36651.txt b/Documentation/devicetree/bindings/iio/light/cm36651.txt
new file mode 100644
index 000000000000..c03e19db4550
--- /dev/null
+++ b/Documentation/devicetree/bindings/iio/light/cm36651.txt
@@ -0,0 +1,26 @@
+* Capella CM36651 I2C Proximity and Color Light sensor
+
+Required properties:
+- compatible: must be "capella,cm36651"
+- reg: the I2C address of the device
+- interrupts: interrupt-specifier for the sole interrupt
+	      generated by the device
+- vled-supply: regulator for the IR LED. IR_LED is a part
+	      of the cm36651 for proximity detection.
+	      As covered in ../../regulator/regulator.txt
+
+Example:
+
+	i2c_cm36651: i2c-gpio {
+		/* ... */
+
+		cm36651@18 {
+			compatible = "capella,cm36651";
+			reg = <0x18>;
+			interrupt-parent = <&gpx0>;
+			interrupts = <2 0>;
+			vled-supply = <&ps_als_reg>;
+		};
+
+		/* ... */
+	};
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 2956800f0240..04eab45dd148 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -15,6 +15,7 @@ atmel	Atmel Corporation
 avago	Avago Technologies
 bosch	Bosch Sensortec GmbH
 brcm	Broadcom Corporation
+capella	Capella Microsystems, Inc
 cavium	Cavium, Inc.
 chrp	Common Hardware Reference Platform
 cirrus	Cirrus Logic, Inc.
-- 
cgit 


From ae6f54d2b14aa4d727169cbe088baa64ad880fd5 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Wed, 16 Oct 2013 23:19:00 +0100
Subject: staging:iio:hmc5843: Use SCALE instead of magn_range

v3:
* rename _check_scale() to _get_scale_index()
v2:
* use SCALE instead of CALIBSCALE to control the range/gain
  of measurements

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/magnetometer/hmc5843.c | 160 +++++++++++------------------
 1 file changed, 59 insertions(+), 101 deletions(-)

diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index b29622c6f157..c56db4109119 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -49,7 +49,7 @@ enum hmc5843_ids {
  */
 #define HMC5843_RANGE_GAIN_OFFSET		0x05
 #define HMC5843_RANGE_GAIN_DEFAULT		0x01
-#define HMC5843_RANGE_GAIN_MAX			0x07
+#define HMC5843_RANGE_GAINS			8
 
 /* Device status */
 #define HMC5843_DATA_READY			0x01
@@ -79,64 +79,18 @@ enum hmc5843_ids {
 #define HMC5843_MEAS_CONF_MASK			0x03
 
 /* Scaling factors: 10000000/Gain */
-static const int hmc5843_regval_to_nanoscale[] = {
+static const int hmc5843_regval_to_nanoscale[HMC5843_RANGE_GAINS] = {
 	6173, 7692, 10309, 12821, 18868, 21739, 25641, 35714
 };
 
-static const int hmc5883_regval_to_nanoscale[] = {
+static const int hmc5883_regval_to_nanoscale[HMC5843_RANGE_GAINS] = {
 	7812, 9766, 13021, 16287, 24096, 27701, 32573, 45662
 };
 
-static const int hmc5883l_regval_to_nanoscale[] = {
+static const int hmc5883l_regval_to_nanoscale[HMC5843_RANGE_GAINS] = {
 	7299, 9174, 12195, 15152, 22727, 25641, 30303, 43478
 };
 
-/*
- * From the HMC5843 datasheet:
- * Value	| Sensor input field range (Ga)	| Gain (counts/milli-Gauss)
- * 0		| (+-)0.7			| 1620
- * 1		| (+-)1.0			| 1300
- * 2		| (+-)1.5			| 970
- * 3		| (+-)2.0			| 780
- * 4		| (+-)3.2			| 530
- * 5		| (+-)3.8			| 460
- * 6		| (+-)4.5			| 390
- * 7		| (+-)6.5			| 280
- *
- * From the HMC5883 datasheet:
- * Value	| Recommended sensor field range (Ga)	| Gain (counts/Gauss)
- * 0		| (+-)0.9				| 1280
- * 1		| (+-)1.2				| 1024
- * 2		| (+-)1.9				| 768
- * 3		| (+-)2.5				| 614
- * 4		| (+-)4.0				| 415
- * 5		| (+-)4.6				| 361
- * 6		| (+-)5.5				| 307
- * 7		| (+-)7.9				| 219
- *
- * From the HMC5883L datasheet:
- * Value	| Recommended sensor field range (Ga)	| Gain (LSB/Gauss)
- * 0		| (+-)0.88				| 1370
- * 1		| (+-)1.3				| 1090
- * 2		| (+-)1.9				| 820
- * 3		| (+-)2.5				| 660
- * 4		| (+-)4.0				| 440
- * 5		| (+-)4.7				| 390
- * 6		| (+-)5.6				| 330
- * 7		| (+-)8.1				| 230
- */
-static const int hmc5843_regval_to_input_field_mga[] = {
-	700, 1000, 1500, 2000, 3200, 3800, 4500, 6500
-};
-
-static const int hmc5883_regval_to_input_field_mga[] = {
-	900, 1200, 1900, 2500, 4000, 4600, 5500, 7900
-};
-
-static const int hmc5883l_regval_to_input_field_mga[] = {
-	880, 1300, 1900, 2500, 4000, 4700, 5600, 8100
-};
-
 /*
  * From the datasheet:
  * Value	| HMC5843		| HMC5883/HMC5883L
@@ -163,7 +117,6 @@ static const int hmc5883_regval_to_samp_freq[7][2] = {
 struct hmc5843_chip_info {
 	const struct iio_chan_spec *channels;
 	const int (*regval_to_samp_freq)[2];
-	const int *regval_to_input_field_mga;
 	const int *regval_to_nanoscale;
 };
 
@@ -412,58 +365,41 @@ static int hmc5843_check_samp_freq(struct hmc5843_data *data,
 		val, val2);
 }
 
-static ssize_t hmc5843_show_range_gain(struct device *dev,
-				struct device_attribute *attr,
-				char *buf)
+static ssize_t hmc5843_show_scale_avail(struct device *dev,
+				struct device_attribute *attr, char *buf)
 {
-	u8 range;
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct hmc5843_data *data = iio_priv(indio_dev);
+	struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev));
+
+	size_t len = 0;
+	int i;
 
-	range = data->range;
-	return sprintf(buf, "%d\n", data->variant->regval_to_input_field_mga[range]);
+	for (i = 0; i < HMC5843_RANGE_GAINS; i++)
+		len += scnprintf(buf + len, PAGE_SIZE - len,
+			"0.%09d ", data->variant->regval_to_nanoscale[i]);
+
+	/* replace trailing space by newline */
+	buf[len - 1] = '\n';
+
+	return len;
 }
 
-static ssize_t hmc5843_set_range_gain(struct device *dev,
-			struct device_attribute *attr,
-			const char *buf,
-			size_t count)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	struct hmc5843_data *data = iio_priv(indio_dev);
-	unsigned long range = 0;
-	int error;
+static IIO_DEVICE_ATTR(scale_available, S_IRUGO,
+	hmc5843_show_scale_avail, NULL, 0);
 
-	mutex_lock(&data->lock);
-	error = kstrtoul(buf, 10, &range);
-	if (error) {
-		count = error;
-		goto exit;
-	}
-	dev_dbg(dev, "set range to %lu\n", range);
+static int hmc5843_get_scale_index(struct hmc5843_data *data, int val, int val2)
+{
+	int i;
 
-	if (range > HMC5843_RANGE_GAIN_MAX) {
-		count = -EINVAL;
-		goto exit;
-	}
+	if (val != 0)
+		return -EINVAL;
 
-	data->range = range;
-	range = range << HMC5843_RANGE_GAIN_OFFSET;
-	if (i2c_smbus_write_byte_data(data->client, this_attr->address, range))
-		count = -EINVAL;
+	for (i = 0; i < HMC5843_RANGE_GAINS; i++)
+		if (val2 == data->variant->regval_to_nanoscale[i])
+			return i;
 
-exit:
-	mutex_unlock(&data->lock);
-	return count;
+	return -EINVAL;
 }
 
-static IIO_DEVICE_ATTR(in_magn_range,
-			S_IWUSR | S_IRUGO,
-			hmc5843_show_range_gain,
-			hmc5843_set_range_gain,
-			HMC5843_CONFIG_REG_B);
-
 static int hmc5843_read_raw(struct iio_dev *indio_dev,
 			    struct iio_chan_spec const *chan,
 			    int *val, int *val2, long mask)
@@ -490,7 +426,7 @@ static int hmc5843_write_raw(struct iio_dev *indio_dev,
 			     int val, int val2, long mask)
 {
 	struct hmc5843_data *data = iio_priv(indio_dev);
-	int ret, rate;
+	int ret, rate, range;
 
 	switch (mask) {
 	case IIO_CHAN_INFO_SAMP_FREQ:
@@ -505,6 +441,33 @@ static int hmc5843_write_raw(struct iio_dev *indio_dev,
 		mutex_unlock(&data->lock);
 
 		return ret;
+	case IIO_CHAN_INFO_SCALE:
+		range = hmc5843_get_scale_index(data, val, val2);
+		if (range < 0)
+			return -EINVAL;
+
+		range <<= HMC5843_RANGE_GAIN_OFFSET;
+		mutex_lock(&data->lock);
+		ret = i2c_smbus_write_byte_data(data->client,
+			HMC5843_CONFIG_REG_B, range);
+		if (ret >= 0)
+			data->range = range;
+		mutex_unlock(&data->lock);
+
+		return ret;
+	default:
+		return -EINVAL;
+	}
+}
+
+static int hmc5843_write_raw_get_fmt(struct iio_dev *indio_dev,
+			       struct iio_chan_spec const *chan, long mask)
+{
+	switch (mask) {
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		return IIO_VAL_INT_PLUS_MICRO;
+	case IIO_CHAN_INFO_SCALE:
+		return IIO_VAL_INT_PLUS_NANO;
 	default:
 		return -EINVAL;
 	}
@@ -536,7 +499,7 @@ static const struct iio_chan_spec hmc5883_channels[] = {
 static struct attribute *hmc5843_attributes[] = {
 	&iio_dev_attr_meas_conf.dev_attr.attr,
 	&iio_dev_attr_operating_mode.dev_attr.attr,
-	&iio_dev_attr_in_magn_range.dev_attr.attr,
+	&iio_dev_attr_scale_available.dev_attr.attr,
 	&iio_dev_attr_sampling_frequency_available.dev_attr.attr,
 	NULL
 };
@@ -549,22 +512,16 @@ static const struct hmc5843_chip_info hmc5843_chip_info_tbl[] = {
 	[HMC5843_ID] = {
 		.channels = hmc5843_channels,
 		.regval_to_samp_freq = hmc5843_regval_to_samp_freq,
-		.regval_to_input_field_mga =
-			hmc5843_regval_to_input_field_mga,
 		.regval_to_nanoscale = hmc5843_regval_to_nanoscale,
 	},
 	[HMC5883_ID] = {
 		.channels = hmc5883_channels,
 		.regval_to_samp_freq = hmc5883_regval_to_samp_freq,
-		.regval_to_input_field_mga =
-			hmc5883_regval_to_input_field_mga,
 		.regval_to_nanoscale = hmc5883_regval_to_nanoscale,
 	},
 	[HMC5883L_ID] = {
 		.channels = hmc5883_channels,
 		.regval_to_samp_freq = hmc5883_regval_to_samp_freq,
-		.regval_to_input_field_mga =
-			hmc5883l_regval_to_input_field_mga,
 		.regval_to_nanoscale = hmc5883l_regval_to_nanoscale,
 	},
 };
@@ -582,6 +539,7 @@ static const struct iio_info hmc5843_info = {
 	.attrs = &hmc5843_group,
 	.read_raw = &hmc5843_read_raw,
 	.write_raw = &hmc5843_write_raw,
+	.write_raw_get_fmt = &hmc5843_write_raw_get_fmt,
 	.driver_module = THIS_MODULE,
 };
 
-- 
cgit 


From 9a3b2d5e0c03f0f22c518895e6e7986be52dfba4 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Wed, 16 Oct 2013 23:19:00 +0100
Subject: staging:iio:hmc5843: Rename _check_samp_freq to get_samp_freq_index

and drop/inline helper functions _check_int_plus_micros() and
_show_int_plus_micros()

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/magnetometer/hmc5843.c | 47 ++++++++++--------------------
 1 file changed, 16 insertions(+), 31 deletions(-)

diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index c56db4109119..749b0b63387c 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -309,15 +309,17 @@ static IIO_DEVICE_ATTR(meas_conf,
 			hmc5843_set_measurement_configuration,
 			0);
 
-static ssize_t hmc5843_show_int_plus_micros(char *buf,
-	const int (*vals)[2], int n)
+static ssize_t hmc5843_show_samp_freq_avail(struct device *dev,
+				struct device_attribute *attr, char *buf)
 {
+	struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev));
 	size_t len = 0;
 	int i;
 
-	for (i = 0; i < n; i++)
+	for (i = 0; i < HMC5843_RATE_NOT_USED; i++)
 		len += scnprintf(buf + len, PAGE_SIZE - len,
-			"%d.%d ", vals[i][0], vals[i][1]);
+			"%d.%d ", data->variant->regval_to_samp_freq[i][0],
+			data->variant->regval_to_samp_freq[i][1]);
 
 	/* replace trailing space by newline */
 	buf[len - 1] = '\n';
@@ -325,28 +327,6 @@ static ssize_t hmc5843_show_int_plus_micros(char *buf,
 	return len;
 }
 
-static int hmc5843_check_int_plus_micros(const int (*vals)[2], int n,
-					int val, int val2)
-{
-	int i;
-
-	for (i = 0; i < n; i++) {
-		if (val == vals[i][0] && val2 == vals[i][1])
-			return i;
-	}
-
-	return -EINVAL;
-}
-
-static ssize_t hmc5843_show_samp_freq_avail(struct device *dev,
-				struct device_attribute *attr, char *buf)
-{
-	struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev));
-
-	return hmc5843_show_int_plus_micros(buf,
-		data->variant->regval_to_samp_freq, HMC5843_RATE_NOT_USED);
-}
-
 static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(hmc5843_show_samp_freq_avail);
 
 static s32 hmc5843_set_rate(struct hmc5843_data *data, u8 rate)
@@ -357,12 +337,17 @@ static s32 hmc5843_set_rate(struct hmc5843_data *data, u8 rate)
 		reg_val);
 }
 
-static int hmc5843_check_samp_freq(struct hmc5843_data *data,
+static int hmc5843_get_samp_freq_index(struct hmc5843_data *data,
 				   int val, int val2)
 {
-	return hmc5843_check_int_plus_micros(
-		data->variant->regval_to_samp_freq, HMC5843_RATE_NOT_USED,
-		val, val2);
+	int i;
+
+	for (i = 0; i < HMC5843_RATE_NOT_USED; i++)
+		if (val == data->variant->regval_to_samp_freq[i][0] &&
+			val2 == data->variant->regval_to_samp_freq[i][1])
+			return i;
+
+	return -EINVAL;
 }
 
 static ssize_t hmc5843_show_scale_avail(struct device *dev,
@@ -430,7 +415,7 @@ static int hmc5843_write_raw(struct iio_dev *indio_dev,
 
 	switch (mask) {
 	case IIO_CHAN_INFO_SAMP_FREQ:
-		rate = hmc5843_check_samp_freq(data, val, val2);
+		rate = hmc5843_get_samp_freq_index(data, val, val2);
 		if (rate < 0)
 			return -EINVAL;
 
-- 
cgit 


From 39c18828829ddd8acc5885e6568ee2fdb9ec5dc9 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Wed, 16 Oct 2013 23:19:00 +0100
Subject: staging:iio:hmc5843: Always read all channels values otherwise no
 updates

v2:
* use __be16 instead of s16

Split out data ready/wait for read measurement
fix bug in case reading status register fails

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/magnetometer/hmc5843.c | 53 ++++++++++++++++++------------
 1 file changed, 32 insertions(+), 21 deletions(-)

diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index 749b0b63387c..78b97b026c34 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -28,12 +28,7 @@
 #define HMC5843_CONFIG_REG_A			0x00
 #define HMC5843_CONFIG_REG_B			0x01
 #define HMC5843_MODE_REG			0x02
-#define HMC5843_DATA_OUT_X_MSB_REG		0x03
-#define HMC5843_DATA_OUT_Y_MSB_REG		0x05
-#define HMC5843_DATA_OUT_Z_MSB_REG		0x07
-/* Beware: Y and Z are exchanged on HMC5883 */
-#define HMC5883_DATA_OUT_Z_MSB_REG		0x05
-#define HMC5883_DATA_OUT_Y_MSB_REG		0x07
+#define HMC5843_DATA_OUT_MSB_REGS		0x03
 #define HMC5843_STATUS_REG			0x09
 
 enum hmc5843_ids {
@@ -140,17 +135,16 @@ static s32 hmc5843_configure(struct i2c_client *client,
 					operating_mode & HMC5843_MODE_MASK);
 }
 
-/* Return the measurement value from the specified channel */
-static int hmc5843_read_measurement(struct hmc5843_data *data,
-				    int address, int *val)
+static int hmc5843_wait_measurement(struct hmc5843_data *data)
 {
 	s32 result;
 	int tries = 150;
 
-	mutex_lock(&data->lock);
 	while (tries-- > 0) {
 		result = i2c_smbus_read_byte_data(data->client,
 			HMC5843_STATUS_REG);
+		if (result < 0)
+			return result;
 		if (result & HMC5843_DATA_READY)
 			break;
 		msleep(20);
@@ -158,16 +152,32 @@ static int hmc5843_read_measurement(struct hmc5843_data *data,
 
 	if (tries < 0) {
 		dev_err(&data->client->dev, "data not ready\n");
-		mutex_unlock(&data->lock);
 		return -EIO;
 	}
 
-	result = i2c_smbus_read_word_swapped(data->client, address);
+	return 0;
+}
+
+/* Return the measurement value from the specified channel */
+static int hmc5843_read_measurement(struct hmc5843_data *data,
+				    int idx, int *val)
+{
+	s32 result;
+	__be16 values[3];
+
+	mutex_lock(&data->lock);
+	result = hmc5843_wait_measurement(data);
+	if (result < 0) {
+		mutex_unlock(&data->lock);
+		return result;
+	}
+	result = i2c_smbus_read_i2c_block_data(data->client,
+		HMC5843_DATA_OUT_MSB_REGS, sizeof(values), (u8 *) values);
 	mutex_unlock(&data->lock);
 	if (result < 0)
 		return -EINVAL;
 
-	*val = sign_extend32(result, 15);
+	*val = sign_extend32(be16_to_cpu(values[idx]), 15);
 	return IIO_VAL_INT;
 }
 
@@ -458,7 +468,7 @@ static int hmc5843_write_raw_get_fmt(struct iio_dev *indio_dev,
 	}
 }
 
-#define HMC5843_CHANNEL(axis, addr)					\
+#define HMC5843_CHANNEL(axis, idx)					\
 	{								\
 		.type = IIO_MAGN,					\
 		.modified = 1,						\
@@ -466,19 +476,20 @@ static int hmc5843_write_raw_get_fmt(struct iio_dev *indio_dev,
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),		\
 		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) |	\
 			BIT(IIO_CHAN_INFO_SAMP_FREQ),			\
-		.address = addr						\
+		.address = idx						\
 	}
 
 static const struct iio_chan_spec hmc5843_channels[] = {
-	HMC5843_CHANNEL(X, HMC5843_DATA_OUT_X_MSB_REG),
-	HMC5843_CHANNEL(Y, HMC5843_DATA_OUT_Y_MSB_REG),
-	HMC5843_CHANNEL(Z, HMC5843_DATA_OUT_Z_MSB_REG),
+	HMC5843_CHANNEL(X, 0),
+	HMC5843_CHANNEL(Y, 1),
+	HMC5843_CHANNEL(Z, 2),
 };
 
+/* Beware: Y and Z are exchanged on HMC5883 */
 static const struct iio_chan_spec hmc5883_channels[] = {
-	HMC5843_CHANNEL(X, HMC5843_DATA_OUT_X_MSB_REG),
-	HMC5843_CHANNEL(Y, HMC5883_DATA_OUT_Y_MSB_REG),
-	HMC5843_CHANNEL(Z, HMC5883_DATA_OUT_Z_MSB_REG),
+	HMC5843_CHANNEL(X, 0),
+	HMC5843_CHANNEL(Z, 1),
+	HMC5843_CHANNEL(Y, 2),
 };
 
 static struct attribute *hmc5843_attributes[] = {
-- 
cgit 


From cb9b9a828f4fa3ff4465001da9a4588b779d0047 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Wed, 16 Oct 2013 23:19:00 +0100
Subject: staging:iio:hmc5843: Add trigger handling

v3:
* use __be16 instead of s16
v2 (thanks to Jonathan Cameron):
* drop dynamic buffer allocation, buffer is in hmc5842_data
* grab timestamp near data acquisition
* restrict available scan masks (only read all axis)

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/magnetometer/hmc5843.c | 69 ++++++++++++++++++++++++++----
 1 file changed, 61 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index 78b97b026c34..aeaea0984c31 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -23,6 +23,9 @@
 #include <linux/i2c.h>
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/triggered_buffer.h>
 #include <linux/delay.h>
 
 #define HMC5843_CONFIG_REG_A			0x00
@@ -124,6 +127,7 @@ struct hmc5843_data {
 	u8 operating_mode;
 	u8 range;
 	const struct hmc5843_chip_info *variant;
+	__be16 buffer[8]; /* 3x 16-bit channels + padding + 64-bit timestamp */
 };
 
 /* The lower two bits contain the current conversion mode */
@@ -403,7 +407,7 @@ static int hmc5843_read_raw(struct iio_dev *indio_dev,
 
 	switch (mask) {
 	case IIO_CHAN_INFO_RAW:
-		return hmc5843_read_measurement(data, chan->address, val);
+		return hmc5843_read_measurement(data, chan->scan_index, val);
 	case IIO_CHAN_INFO_SCALE:
 		*val = 0;
 		*val2 = data->variant->regval_to_nanoscale[data->range];
@@ -468,6 +472,36 @@ static int hmc5843_write_raw_get_fmt(struct iio_dev *indio_dev,
 	}
 }
 
+static irqreturn_t hmc5843_trigger_handler(int irq, void *p)
+{
+	struct iio_poll_func *pf = p;
+	struct iio_dev *indio_dev = pf->indio_dev;
+	struct hmc5843_data *data = iio_priv(indio_dev);
+	int ret;
+
+	mutex_lock(&data->lock);
+	ret = hmc5843_wait_measurement(data);
+	if (ret < 0) {
+		mutex_unlock(&data->lock);
+		goto done;
+	}
+
+	ret = i2c_smbus_read_i2c_block_data(data->client,
+		HMC5843_DATA_OUT_MSB_REGS, 3 * sizeof(__be16),
+			(u8 *) data->buffer);
+	mutex_unlock(&data->lock);
+	if (ret < 0)
+		goto done;
+
+	iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
+		iio_get_time_ns());
+
+done:
+	iio_trigger_notify_done(indio_dev->trig);
+
+	return IRQ_HANDLED;
+}
+
 #define HMC5843_CHANNEL(axis, idx)					\
 	{								\
 		.type = IIO_MAGN,					\
@@ -476,13 +510,15 @@ static int hmc5843_write_raw_get_fmt(struct iio_dev *indio_dev,
 		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),		\
 		.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE) |	\
 			BIT(IIO_CHAN_INFO_SAMP_FREQ),			\
-		.address = idx						\
+		.scan_index = idx,					\
+		.scan_type = IIO_ST('s', 16, 16, IIO_BE),		\
 	}
 
 static const struct iio_chan_spec hmc5843_channels[] = {
 	HMC5843_CHANNEL(X, 0),
 	HMC5843_CHANNEL(Y, 1),
 	HMC5843_CHANNEL(Z, 2),
+	IIO_CHAN_SOFT_TIMESTAMP(3),
 };
 
 /* Beware: Y and Z are exchanged on HMC5883 */
@@ -490,6 +526,7 @@ static const struct iio_chan_spec hmc5883_channels[] = {
 	HMC5843_CHANNEL(X, 0),
 	HMC5843_CHANNEL(Z, 1),
 	HMC5843_CHANNEL(Y, 2),
+	IIO_CHAN_SOFT_TIMESTAMP(3),
 };
 
 static struct attribute *hmc5843_attributes[] = {
@@ -539,12 +576,14 @@ static const struct iio_info hmc5843_info = {
 	.driver_module = THIS_MODULE,
 };
 
+static const unsigned long hmc5843_scan_masks[] = {0x7, 0};
+
 static int hmc5843_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
 	struct hmc5843_data *data;
 	struct iio_dev *indio_dev;
-	int err = 0;
+	int ret;
 
 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
 	if (indio_dev == NULL)
@@ -562,20 +601,34 @@ static int hmc5843_probe(struct i2c_client *client,
 	indio_dev->dev.parent = &client->dev;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 	indio_dev->channels = data->variant->channels;
-	indio_dev->num_channels = 3;
+	indio_dev->num_channels = 4;
+	indio_dev->available_scan_masks = hmc5843_scan_masks;
 
 	hmc5843_init(data);
 
-	err = iio_device_register(indio_dev);
-	if (err)
-		return err;
+	ret = iio_triggered_buffer_setup(indio_dev, NULL,
+		hmc5843_trigger_handler, NULL);
+	if (ret < 0)
+		return ret;
+
+	ret = iio_device_register(indio_dev);
+	if (ret < 0)
+		goto buffer_cleanup;
 
 	return 0;
+
+buffer_cleanup:
+	iio_triggered_buffer_cleanup(indio_dev);
+	return ret;
 }
 
 static int hmc5843_remove(struct i2c_client *client)
 {
-	iio_device_unregister(i2c_get_clientdata(client));
+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+
+	iio_device_unregister(indio_dev);
+	iio_triggered_buffer_cleanup(indio_dev);
+
 	 /*  sleep mode to save power */
 	hmc5843_configure(client, HMC5843_MODE_SLEEP);
 
-- 
cgit 


From 7183de9450d4184ae5832dd9e00abf56ccc3fa93 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Wed, 16 Oct 2013 23:19:00 +0100
Subject: staging:iio:hmc5843: Remove ability to change operating mode

only continuous mode is supported for now; the driver could/should
be switched to single conversion mode

operating mode should be determined by the way IIO accesses the device
and not exposed explicitly

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/magnetometer/hmc5843.c | 68 ------------------------------
 1 file changed, 68 deletions(-)

diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index aeaea0984c31..5204b9abb0bd 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -185,73 +185,6 @@ static int hmc5843_read_measurement(struct hmc5843_data *data,
 	return IIO_VAL_INT;
 }
 
-/*
- * From the datasheet:
- * 0 - Continuous-Conversion Mode: In continuous-conversion mode, the
- *     device continuously performs conversions and places the result in
- *     the data register.
- *
- * 1 - Single-Conversion Mode : Device performs a single measurement,
- *     sets RDY high and returns to sleep mode.
- *
- * 2 - Idle Mode : Device is placed in idle mode.
- *
- * 3 - Sleep Mode : Device is placed in sleep mode.
- *
- */
-static ssize_t hmc5843_show_operating_mode(struct device *dev,
-					struct device_attribute *attr,
-					char *buf)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct hmc5843_data *data = iio_priv(indio_dev);
-	return sprintf(buf, "%d\n", data->operating_mode);
-}
-
-static ssize_t hmc5843_set_operating_mode(struct device *dev,
-				struct device_attribute *attr,
-				const char *buf,
-				size_t count)
-{
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct i2c_client *client = to_i2c_client(indio_dev->dev.parent);
-	struct hmc5843_data *data = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	unsigned long operating_mode = 0;
-	s32 status;
-	int error;
-
-	mutex_lock(&data->lock);
-	error = kstrtoul(buf, 10, &operating_mode);
-	if (error) {
-		count = error;
-		goto exit;
-	}
-	dev_dbg(dev, "set conversion mode to %lu\n", operating_mode);
-	if (operating_mode > HMC5843_MODE_SLEEP) {
-		count = -EINVAL;
-		goto exit;
-	}
-
-	status = i2c_smbus_write_byte_data(client, this_attr->address,
-					operating_mode);
-	if (status) {
-		count = -EINVAL;
-		goto exit;
-	}
-	data->operating_mode = operating_mode;
-
-exit:
-	mutex_unlock(&data->lock);
-	return count;
-}
-
-static IIO_DEVICE_ATTR(operating_mode,
-			S_IWUSR | S_IRUGO,
-			hmc5843_show_operating_mode,
-			hmc5843_set_operating_mode,
-			HMC5843_MODE_REG);
-
 /*
  * API for setting the measurement configuration to
  * Normal, Positive bias and Negative bias
@@ -531,7 +464,6 @@ static const struct iio_chan_spec hmc5883_channels[] = {
 
 static struct attribute *hmc5843_attributes[] = {
 	&iio_dev_attr_meas_conf.dev_attr.attr,
-	&iio_dev_attr_operating_mode.dev_attr.attr,
 	&iio_dev_attr_scale_available.dev_attr.attr,
 	&iio_dev_attr_sampling_frequency_available.dev_attr.attr,
 	NULL
-- 
cgit 


From 62248758a735140ea64220ec8807e143333f4bfe Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Wed, 16 Oct 2013 23:19:00 +0100
Subject: staging:iio:hmc5843: Rename _configure() to _set_mode()

and be consistent with other setter functions in that first argument
is hmc5843_data

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/magnetometer/hmc5843.c | 27 ++++++++++++++++-----------
 1 file changed, 16 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index 5204b9abb0bd..d7ace7054b0c 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -131,12 +131,18 @@ struct hmc5843_data {
 };
 
 /* The lower two bits contain the current conversion mode */
-static s32 hmc5843_configure(struct i2c_client *client,
-				       u8 operating_mode)
+static s32 hmc5843_set_mode(struct hmc5843_data *data, u8 operating_mode)
 {
-	return i2c_smbus_write_byte_data(client,
-					HMC5843_MODE_REG,
+	int ret;
+
+	mutex_lock(&data->lock);
+	ret = i2c_smbus_write_byte_data(data->client, HMC5843_MODE_REG,
 					operating_mode & HMC5843_MODE_MASK);
+	if (ret >= 0)
+		data->operating_mode = operating_mode;
+	mutex_unlock(&data->lock);
+
+	return ret;
 }
 
 static int hmc5843_wait_measurement(struct hmc5843_data *data)
@@ -495,7 +501,7 @@ static void hmc5843_init(struct hmc5843_data *data)
 {
 	hmc5843_set_meas_conf(data, HMC5843_MEAS_CONF_NORMAL);
 	hmc5843_set_rate(data, HMC5843_RATE_DEFAULT);
-	hmc5843_configure(data->client, HMC5843_MODE_CONVERSION_CONTINUOUS);
+	hmc5843_set_mode(data, HMC5843_MODE_CONVERSION_CONTINUOUS);
 	i2c_smbus_write_byte_data(data->client, HMC5843_CONFIG_REG_B,
 		HMC5843_RANGE_GAIN_DEFAULT);
 }
@@ -562,7 +568,7 @@ static int hmc5843_remove(struct i2c_client *client)
 	iio_triggered_buffer_cleanup(indio_dev);
 
 	 /*  sleep mode to save power */
-	hmc5843_configure(client, HMC5843_MODE_SLEEP);
+	hmc5843_set_mode(iio_priv(indio_dev), HMC5843_MODE_SLEEP);
 
 	return 0;
 }
@@ -570,9 +576,10 @@ static int hmc5843_remove(struct i2c_client *client)
 #ifdef CONFIG_PM_SLEEP
 static int hmc5843_suspend(struct device *dev)
 {
-	hmc5843_configure(to_i2c_client(dev), HMC5843_MODE_SLEEP);
+	struct hmc5843_data *data = iio_priv(i2c_get_clientdata(
+		to_i2c_client(dev)));
 
-	return 0;
+	return hmc5843_set_mode(data, HMC5843_MODE_SLEEP);
 }
 
 static int hmc5843_resume(struct device *dev)
@@ -580,9 +587,7 @@ static int hmc5843_resume(struct device *dev)
 	struct hmc5843_data *data = iio_priv(i2c_get_clientdata(
 		to_i2c_client(dev)));
 
-	hmc5843_configure(data->client, data->operating_mode);
-
-	return 0;
+	return hmc5843_set_mode(data, HMC5843_MODE_CONVERSION_CONTINUOUS);
 }
 
 static SIMPLE_DEV_PM_OPS(hmc5843_pm_ops, hmc5843_suspend, hmc5843_resume);
-- 
cgit 


From 4f1ca4158dde56a6462db9ec5d7e0eca7ff99ff1 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Wed, 16 Oct 2013 23:19:00 +0100
Subject: staging:iio:hmc5843: Reorganize _set_meas_conf()

move locking inside _set() function

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/magnetometer/hmc5843.c | 45 +++++++++++++-----------------
 1 file changed, 20 insertions(+), 25 deletions(-)

diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index d7ace7054b0c..bd1398437156 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -73,7 +73,6 @@ enum hmc5843_ids {
 #define HMC5843_MEAS_CONF_NORMAL		0x00
 #define HMC5843_MEAS_CONF_POSITIVE_BIAS		0x01
 #define HMC5843_MEAS_CONF_NEGATIVE_BIAS		0x02
-#define HMC5843_MEAS_CONF_NOT_USED		0x03
 #define HMC5843_MEAS_CONF_MASK			0x03
 
 /* Scaling factors: 10000000/Gain */
@@ -211,19 +210,24 @@ static int hmc5843_read_measurement(struct hmc5843_data *data,
  */
 static s32 hmc5843_set_meas_conf(struct hmc5843_data *data, u8 meas_conf)
 {
-	u8 reg_val;
-	reg_val = (meas_conf & HMC5843_MEAS_CONF_MASK) |
-		(data->rate << HMC5843_RATE_OFFSET);
-	return i2c_smbus_write_byte_data(data->client, HMC5843_CONFIG_REG_A,
-		reg_val);
+	int ret;
+
+	mutex_lock(&data->lock);
+	ret = i2c_smbus_write_byte_data(data->client, HMC5843_CONFIG_REG_A,
+		(meas_conf & HMC5843_MEAS_CONF_MASK) |
+		(data->rate << HMC5843_RATE_OFFSET));
+	if (ret >= 0)
+		data->meas_conf = meas_conf;
+	mutex_unlock(&data->lock);
+
+	return ret;
 }
 
 static ssize_t hmc5843_show_measurement_configuration(struct device *dev,
 						struct device_attribute *attr,
 						char *buf)
 {
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct hmc5843_data *data = iio_priv(indio_dev);
+	struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev));
 	return sprintf(buf, "%d\n", data->meas_conf);
 }
 
@@ -232,28 +236,19 @@ static ssize_t hmc5843_set_measurement_configuration(struct device *dev,
 						const char *buf,
 						size_t count)
 {
-	struct iio_dev *indio_dev = dev_to_iio_dev(dev);
-	struct hmc5843_data *data = iio_priv(indio_dev);
+	struct hmc5843_data *data = iio_priv(dev_to_iio_dev(dev));
 	unsigned long meas_conf = 0;
-	int error;
+	int ret;
 
-	error = kstrtoul(buf, 10, &meas_conf);
-	if (error)
-		return error;
-	if (meas_conf >= HMC5843_MEAS_CONF_NOT_USED)
+	ret = kstrtoul(buf, 10, &meas_conf);
+	if (ret)
+		return ret;
+	if (meas_conf >= HMC5843_MEAS_CONF_MASK)
 		return -EINVAL;
 
-	mutex_lock(&data->lock);
-	dev_dbg(dev, "set measurement configuration to %lu\n", meas_conf);
-	if (hmc5843_set_meas_conf(data, meas_conf)) {
-		count = -EINVAL;
-		goto exit;
-	}
-	data->meas_conf = meas_conf;
+	ret = hmc5843_set_meas_conf(data, meas_conf);
 
-exit:
-	mutex_unlock(&data->lock);
-	return count;
+	return (ret < 0) ? ret : count;
 }
 
 static IIO_DEVICE_ATTR(meas_conf,
-- 
cgit 


From ca4c6172cd0c924aebeb7545754af8107d2d27ae Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Wed, 16 Oct 2013 23:19:00 +0100
Subject: staging:iio:hmc5843: Rename _set_rate() to _set_samp_freq()

move locking inside _set() function

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/magnetometer/hmc5843.c | 31 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index bd1398437156..a91d302facde 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -66,8 +66,7 @@ enum hmc5843_ids {
  */
 #define HMC5843_RATE_OFFSET			0x02
 #define HMC5843_RATE_DEFAULT			0x04
-#define HMC5843_RATE_BITMASK			0x1C
-#define HMC5843_RATE_NOT_USED			0x07
+#define HMC5843_RATES				7
 
 /* Device measurement configuration */
 #define HMC5843_MEAS_CONF_NORMAL		0x00
@@ -264,7 +263,7 @@ static ssize_t hmc5843_show_samp_freq_avail(struct device *dev,
 	size_t len = 0;
 	int i;
 
-	for (i = 0; i < HMC5843_RATE_NOT_USED; i++)
+	for (i = 0; i < HMC5843_RATES; i++)
 		len += scnprintf(buf + len, PAGE_SIZE - len,
 			"%d.%d ", data->variant->regval_to_samp_freq[i][0],
 			data->variant->regval_to_samp_freq[i][1]);
@@ -277,12 +276,18 @@ static ssize_t hmc5843_show_samp_freq_avail(struct device *dev,
 
 static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(hmc5843_show_samp_freq_avail);
 
-static s32 hmc5843_set_rate(struct hmc5843_data *data, u8 rate)
+static int hmc5843_set_samp_freq(struct hmc5843_data *data, u8 rate)
 {
-	u8 reg_val = data->meas_conf | (rate << HMC5843_RATE_OFFSET);
+	int ret;
+
+	mutex_lock(&data->lock);
+	ret = i2c_smbus_write_byte_data(data->client, HMC5843_CONFIG_REG_A,
+		data->meas_conf | (rate << HMC5843_RATE_OFFSET));
+	if (ret >= 0)
+		data->rate = rate;
+	mutex_unlock(&data->lock);
 
-	return i2c_smbus_write_byte_data(data->client, HMC5843_CONFIG_REG_A,
-		reg_val);
+	return ret;
 }
 
 static int hmc5843_get_samp_freq_index(struct hmc5843_data *data,
@@ -290,7 +295,7 @@ static int hmc5843_get_samp_freq_index(struct hmc5843_data *data,
 {
 	int i;
 
-	for (i = 0; i < HMC5843_RATE_NOT_USED; i++)
+	for (i = 0; i < HMC5843_RATES; i++)
 		if (val == data->variant->regval_to_samp_freq[i][0] &&
 			val2 == data->variant->regval_to_samp_freq[i][1])
 			return i;
@@ -367,13 +372,7 @@ static int hmc5843_write_raw(struct iio_dev *indio_dev,
 		if (rate < 0)
 			return -EINVAL;
 
-		mutex_lock(&data->lock);
-		ret = hmc5843_set_rate(data, rate);
-		if (ret >= 0)
-			data->rate = rate;
-		mutex_unlock(&data->lock);
-
-		return ret;
+		return hmc5843_set_samp_freq(data, rate);
 	case IIO_CHAN_INFO_SCALE:
 		range = hmc5843_get_scale_index(data, val, val2);
 		if (range < 0)
@@ -495,7 +494,7 @@ static const struct hmc5843_chip_info hmc5843_chip_info_tbl[] = {
 static void hmc5843_init(struct hmc5843_data *data)
 {
 	hmc5843_set_meas_conf(data, HMC5843_MEAS_CONF_NORMAL);
-	hmc5843_set_rate(data, HMC5843_RATE_DEFAULT);
+	hmc5843_set_samp_freq(data, HMC5843_RATE_DEFAULT);
 	hmc5843_set_mode(data, HMC5843_MODE_CONVERSION_CONTINUOUS);
 	i2c_smbus_write_byte_data(data->client, HMC5843_CONFIG_REG_B,
 		HMC5843_RANGE_GAIN_DEFAULT);
-- 
cgit 


From f3f755197b0436f212d11c5bb960e8ff3a784747 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Wed, 16 Oct 2013 23:19:00 +0100
Subject: staging:iio:hmc5843: Introduce _set_range_gain()

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/magnetometer/hmc5843.c | 29 +++++++++++++++++------------
 1 file changed, 17 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index a91d302facde..c819b8e34876 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -303,6 +303,20 @@ static int hmc5843_get_samp_freq_index(struct hmc5843_data *data,
 	return -EINVAL;
 }
 
+static int hmc5843_set_range_gain(struct hmc5843_data *data, u8 range)
+{
+	int ret;
+
+	mutex_lock(&data->lock);
+	ret = i2c_smbus_write_byte_data(data->client, HMC5843_CONFIG_REG_B,
+		range << HMC5843_RANGE_GAIN_OFFSET);
+	if (ret >= 0)
+		data->range = range;
+	mutex_unlock(&data->lock);
+
+	return ret;
+}
+
 static ssize_t hmc5843_show_scale_avail(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
@@ -364,7 +378,7 @@ static int hmc5843_write_raw(struct iio_dev *indio_dev,
 			     int val, int val2, long mask)
 {
 	struct hmc5843_data *data = iio_priv(indio_dev);
-	int ret, rate, range;
+	int rate, range;
 
 	switch (mask) {
 	case IIO_CHAN_INFO_SAMP_FREQ:
@@ -378,15 +392,7 @@ static int hmc5843_write_raw(struct iio_dev *indio_dev,
 		if (range < 0)
 			return -EINVAL;
 
-		range <<= HMC5843_RANGE_GAIN_OFFSET;
-		mutex_lock(&data->lock);
-		ret = i2c_smbus_write_byte_data(data->client,
-			HMC5843_CONFIG_REG_B, range);
-		if (ret >= 0)
-			data->range = range;
-		mutex_unlock(&data->lock);
-
-		return ret;
+		return hmc5843_set_range_gain(data, range);
 	default:
 		return -EINVAL;
 	}
@@ -495,9 +501,8 @@ static void hmc5843_init(struct hmc5843_data *data)
 {
 	hmc5843_set_meas_conf(data, HMC5843_MEAS_CONF_NORMAL);
 	hmc5843_set_samp_freq(data, HMC5843_RATE_DEFAULT);
+	hmc5843_set_range_gain(data, HMC5843_RANGE_GAIN_DEFAULT);
 	hmc5843_set_mode(data, HMC5843_MODE_CONVERSION_CONTINUOUS);
-	i2c_smbus_write_byte_data(data->client, HMC5843_CONFIG_REG_B,
-		HMC5843_RANGE_GAIN_DEFAULT);
 }
 
 static const struct iio_info hmc5843_info = {
-- 
cgit 


From 9d5ad0c3e7b853544476f3fbe264515aae0f6106 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Wed, 16 Oct 2013 23:19:00 +0100
Subject: staging:iio:hmc5843: Check initialization and chip identifier

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/magnetometer/hmc5843.c | 33 ++++++++++++++++++++++++------
 1 file changed, 27 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index c819b8e34876..7e688dd42266 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -33,6 +33,7 @@
 #define HMC5843_MODE_REG			0x02
 #define HMC5843_DATA_OUT_MSB_REGS		0x03
 #define HMC5843_STATUS_REG			0x09
+#define HMC5843_ID_REG				0x0a
 
 enum hmc5843_ids {
 	HMC5843_ID,
@@ -497,12 +498,30 @@ static const struct hmc5843_chip_info hmc5843_chip_info_tbl[] = {
 	},
 };
 
-static void hmc5843_init(struct hmc5843_data *data)
+static int hmc5843_init(struct hmc5843_data *data)
 {
-	hmc5843_set_meas_conf(data, HMC5843_MEAS_CONF_NORMAL);
-	hmc5843_set_samp_freq(data, HMC5843_RATE_DEFAULT);
-	hmc5843_set_range_gain(data, HMC5843_RANGE_GAIN_DEFAULT);
-	hmc5843_set_mode(data, HMC5843_MODE_CONVERSION_CONTINUOUS);
+	int ret;
+	u8 id[3];
+
+	ret = i2c_smbus_read_i2c_block_data(data->client, HMC5843_ID_REG,
+		sizeof(id), id);
+	if (ret < 0)
+		return ret;
+	if (id[0] != 'H' || id[1] != '4' || id[2] != '3') {
+		dev_err(&data->client->dev, "no HMC5843/5883/5883L sensor\n");
+		return -ENODEV;
+	}
+
+	ret = hmc5843_set_meas_conf(data, HMC5843_MEAS_CONF_NORMAL);
+	if (ret < 0)
+		return ret;
+	ret = hmc5843_set_samp_freq(data, HMC5843_RATE_DEFAULT);
+	if (ret < 0)
+		return ret;
+	ret = hmc5843_set_range_gain(data, HMC5843_RANGE_GAIN_DEFAULT);
+	if (ret < 0)
+		return ret;
+	return hmc5843_set_mode(data, HMC5843_MODE_CONVERSION_CONTINUOUS);
 }
 
 static const struct iio_info hmc5843_info = {
@@ -541,7 +560,9 @@ static int hmc5843_probe(struct i2c_client *client,
 	indio_dev->num_channels = 4;
 	indio_dev->available_scan_masks = hmc5843_scan_masks;
 
-	hmc5843_init(data);
+	ret = hmc5843_init(data);
+	if (ret < 0)
+		return ret;
 
 	ret = iio_triggered_buffer_setup(indio_dev, NULL,
 		hmc5843_trigger_handler, NULL);
-- 
cgit 


From 094509b1d1cac8b39097dfef36ed1bba70c53d96 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Wed, 16 Oct 2013 23:19:00 +0100
Subject: staging:iio:hmc5843: Trivial cleanup

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/magnetometer/hmc5843.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index 7e688dd42266..99421f90d189 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -587,7 +587,7 @@ static int hmc5843_remove(struct i2c_client *client)
 	iio_device_unregister(indio_dev);
 	iio_triggered_buffer_cleanup(indio_dev);
 
-	 /*  sleep mode to save power */
+	/*  sleep mode to save power */
 	hmc5843_set_mode(iio_priv(indio_dev), HMC5843_MODE_SLEEP);
 
 	return 0;
-- 
cgit 


From aeac589a74b91c4c07458272767e089810fbd23d Mon Sep 17 00:00:00 2001
From: Ming Lei <ming.lei@canonical.com>
Date: Thu, 17 Oct 2013 18:56:16 -0400
Subject: ext4: fix performance regression in ext4_writepages

Commit 4e7ea81db5(ext4: restructure writeback path) introduces another
performance regression on random write:

- one more page may be added to ext4 extent in
  mpage_prepare_extent_to_map, and will be submitted for I/O so
  nr_to_write will become -1 before 'done' is set

- the worse thing is that dirty pages may still be retrieved from page
  cache after nr_to_write becomes negative, so lots of small chunks
  can be submitted to block device when page writeback is catching up
  with write path, and performance is hurted.

On one arm A15 board with sata 3.0 SSD(CPU: 1.5GHz dura core, RAM:
2GB, SATA controller: 3.0Gbps), this patch can improve below test's
result from 157MB/sec to 174MB/sec(>10%):

	dd if=/dev/zero of=./z.img bs=8K count=512K

The above test is actually prototype of block write in bonnie++
utility.

This patch makes sure no more pages than nr_to_write can be added to
extent for mapping, so that nr_to_write won't become negative.

Cc: linux-ext4@vger.kernel.org
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 fs/ext4/inode.c | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index e7e5b3d8f002..94aac67b55c9 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -2298,6 +2298,7 @@ static int mpage_prepare_extent_to_map(struct mpage_da_data *mpd)
 	struct address_space *mapping = mpd->inode->i_mapping;
 	struct pagevec pvec;
 	unsigned int nr_pages;
+	long left = mpd->wbc->nr_to_write;
 	pgoff_t index = mpd->first_page;
 	pgoff_t end = mpd->last_page;
 	int tag;
@@ -2333,6 +2334,17 @@ static int mpage_prepare_extent_to_map(struct mpage_da_data *mpd)
 			if (page->index > end)
 				goto out;
 
+			/*
+			 * Accumulated enough dirty pages? This doesn't apply
+			 * to WB_SYNC_ALL mode. For integrity sync we have to
+			 * keep going because someone may be concurrently
+			 * dirtying pages, and we might have synced a lot of
+			 * newly appeared dirty pages, but have not synced all
+			 * of the old dirty pages.
+			 */
+			if (mpd->wbc->sync_mode == WB_SYNC_NONE && left <= 0)
+				goto out;
+
 			/* If we can't merge this page, we are done. */
 			if (mpd->map.m_len > 0 && mpd->next_page != page->index)
 				goto out;
@@ -2367,19 +2379,7 @@ static int mpage_prepare_extent_to_map(struct mpage_da_data *mpd)
 			if (err <= 0)
 				goto out;
 			err = 0;
-
-			/*
-			 * Accumulated enough dirty pages? This doesn't apply
-			 * to WB_SYNC_ALL mode. For integrity sync we have to
-			 * keep going because someone may be concurrently
-			 * dirtying pages, and we might have synced a lot of
-			 * newly appeared dirty pages, but have not synced all
-			 * of the old dirty pages.
-			 */
-			if (mpd->wbc->sync_mode == WB_SYNC_NONE &&
-			    mpd->next_page - mpd->first_page >=
-							mpd->wbc->nr_to_write)
-				goto out;
+			left--;
 		}
 		pagevec_release(&pvec);
 		cond_resched();
-- 
cgit 


From c8b11de0404d318c4a67bf6b9066663b9d93786c Mon Sep 17 00:00:00 2001
From: Josh Wu <josh.wu@atmel.com>
Date: Tue, 8 Oct 2013 04:48:00 +0100
Subject: iio: at91: introduce touch screen support in iio adc driver

AT91 ADC hardware integrate touch screen support. So this patch add touch
screen support for at91 adc iio driver.
To enable touch screen support in adc, you need to add the dt parameters:
  1. which type of touch are used? (4 or 5 wires), sample period time.
  2. correct pressure detect threshold value.

In the meantime, since touch screen will use a interal period trigger of adc,
so it is conflict to other hardware triggers. Driver will disable the hardware
trigger support if touch screen is enabled.

This driver has been tested in AT91SAM9X5-EK and SAMA5D3x-EK.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
CC: devicetree@vger.kernel.org
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 .../devicetree/bindings/arm/atmel-adc.txt          |   7 +
 arch/arm/mach-at91/include/mach/at91_adc.h         |  34 ++
 drivers/iio/adc/at91_adc.c                         | 388 +++++++++++++++++++--
 3 files changed, 405 insertions(+), 24 deletions(-)

diff --git a/Documentation/devicetree/bindings/arm/atmel-adc.txt b/Documentation/devicetree/bindings/arm/atmel-adc.txt
index 0e65e0137487..d1061469f63d 100644
--- a/Documentation/devicetree/bindings/arm/atmel-adc.txt
+++ b/Documentation/devicetree/bindings/arm/atmel-adc.txt
@@ -23,6 +23,13 @@ Optional properties:
 		       resolution will be used.
   - atmel,adc-sleep-mode: Boolean to enable sleep mode when no conversion
   - atmel,adc-sample-hold-time: Sample and Hold Time in microseconds
+  - atmel,adc-ts-wires: Number of touch screen wires. Should be 4 or 5. If this
+                        value is set, then adc driver will enable touch screen
+                        support.
+    NOTE: when adc touch screen enabled, the adc hardware trigger will be
+          disabled. Since touch screen will occupied the trigger register.
+  - atmel,adc-ts-pressure-threshold: a pressure threshold for touchscreen. It
+                                     make touch detect more precision.
  
 Optional trigger Nodes:
   - Required properties:
diff --git a/arch/arm/mach-at91/include/mach/at91_adc.h b/arch/arm/mach-at91/include/mach/at91_adc.h
index 048a57f76bd3..c287307b9a3b 100644
--- a/arch/arm/mach-at91/include/mach/at91_adc.h
+++ b/arch/arm/mach-at91/include/mach/at91_adc.h
@@ -60,14 +60,48 @@
 #define AT91_ADC_IER		0x24		/* Interrupt Enable Register */
 #define AT91_ADC_IDR		0x28		/* Interrupt Disable Register */
 #define AT91_ADC_IMR		0x2C		/* Interrupt Mask Register */
+#define		AT91_ADC_IER_PEN	(1 << 29)
+#define		AT91_ADC_IER_NOPEN	(1 << 30)
+#define		AT91_ADC_IER_XRDY	(1 << 20)
+#define		AT91_ADC_IER_YRDY	(1 << 21)
+#define		AT91_ADC_IER_PRDY	(1 << 22)
+#define		AT91_ADC_ISR_PENS	(1 << 31)
 
 #define AT91_ADC_CHR(n)		(0x30 + ((n) * 4))	/* Channel Data Register N */
 #define		AT91_ADC_DATA		(0x3ff)
 
 #define AT91_ADC_CDR0_9X5	(0x50)			/* Channel Data Register 0 for 9X5 */
 
+#define AT91_ADC_ACR		0x94	/* Analog Control Register */
+#define		AT91_ADC_ACR_PENDETSENS	(0x3 << 0)	/* pull-up resistor */
+
+#define AT91_ADC_TSMR		0xB0
+#define		AT91_ADC_TSMR_TSMODE	(3 << 0)	/* Touch Screen Mode */
+#define			AT91_ADC_TSMR_TSMODE_NONE		(0 << 0)
+#define			AT91_ADC_TSMR_TSMODE_4WIRE_NO_PRESS	(1 << 0)
+#define			AT91_ADC_TSMR_TSMODE_4WIRE_PRESS	(2 << 0)
+#define			AT91_ADC_TSMR_TSMODE_5WIRE		(3 << 0)
+#define		AT91_ADC_TSMR_TSAV	(3 << 4)	/* Averages samples */
+#define			AT91_ADC_TSMR_TSAV_(x)		((x) << 4)
+#define		AT91_ADC_TSMR_SCTIM	(0x0f << 16)	/* Switch closure time */
+#define		AT91_ADC_TSMR_PENDBC	(0x0f << 28)	/* Pen Debounce time */
+#define			AT91_ADC_TSMR_PENDBC_(x)	((x) << 28)
+#define		AT91_ADC_TSMR_NOTSDMA	(1 << 22)	/* No Touchscreen DMA */
+#define		AT91_ADC_TSMR_PENDET_DIS	(0 << 24)	/* Pen contact detection disable */
+#define		AT91_ADC_TSMR_PENDET_ENA	(1 << 24)	/* Pen contact detection enable */
+
+#define AT91_ADC_TSXPOSR	0xB4
+#define AT91_ADC_TSYPOSR	0xB8
+#define AT91_ADC_TSPRESSR	0xBC
+
 #define AT91_ADC_TRGR_9260	AT91_ADC_MR
 #define AT91_ADC_TRGR_9G45	0x08
 #define AT91_ADC_TRGR_9X5	0xC0
 
+/* Trigger Register bit field */
+#define		AT91_ADC_TRGR_TRGPER	(0xffff << 16)
+#define			AT91_ADC_TRGR_TRGPER_(x)	((x) << 16)
+#define		AT91_ADC_TRGR_TRGMOD	(0x7 << 0)
+#define			AT91_ADC_TRGR_MOD_PERIOD_TRIG	(5 << 0)
+
 #endif
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index 690a560e0dab..17df74908db1 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -11,6 +11,7 @@
 #include <linux/clk.h>
 #include <linux/err.h>
 #include <linux/io.h>
+#include <linux/input.h>
 #include <linux/interrupt.h>
 #include <linux/jiffies.h>
 #include <linux/kernel.h>
@@ -39,7 +40,23 @@
 #define at91_adc_writel(st, reg, val) \
 	(writel_relaxed(val, st->reg_base + reg))
 
+#define DRIVER_NAME		"at91_adc"
+#define MAX_POS_BITS		12
+
+#define TOUCH_SAMPLE_PERIOD_US		2000	/* 2ms */
+#define TOUCH_PEN_DETECT_DEBOUNCE_US	200
+
 struct at91_adc_caps {
+	bool	has_ts;		/* Support touch screen */
+	bool	has_tsmr;	/* only at91sam9x5, sama5d3 have TSMR reg */
+	/*
+	 * Numbers of sampling data will be averaged. Can be 0~3.
+	 * Hardware can average (2 ^ ts_filter_average) sample data.
+	 */
+	u8	ts_filter_average;
+	/* Pen Detection input pull-up resistor, can be 0~3 */
+	u8	ts_pen_detect_sensitivity;
+
 	/* startup time calculate function */
 	u32 (*calc_startup_ticks)(u8 startup_time, u32 adc_clk_khz);
 
@@ -47,6 +64,12 @@ struct at91_adc_caps {
 	struct at91_adc_reg_desc registers;
 };
 
+enum atmel_adc_ts_type {
+	ATMEL_ADC_TOUCHSCREEN_NONE = 0,
+	ATMEL_ADC_TOUCHSCREEN_4WIRE = 4,
+	ATMEL_ADC_TOUCHSCREEN_5WIRE = 5,
+};
+
 struct at91_adc_state {
 	struct clk		*adc_clk;
 	u16			*buffer;
@@ -71,6 +94,26 @@ struct at91_adc_state {
 	bool			low_res;	/* the resolution corresponds to the lowest one */
 	wait_queue_head_t	wq_data_avail;
 	struct at91_adc_caps	*caps;
+
+	/*
+	 * Following ADC channels are shared by touchscreen:
+	 *
+	 * CH0 -- Touch screen XP/UL
+	 * CH1 -- Touch screen XM/UR
+	 * CH2 -- Touch screen YP/LL
+	 * CH3 -- Touch screen YM/Sense
+	 * CH4 -- Touch screen LR(5-wire only)
+	 *
+	 * The bitfields below represents the reserved channel in the
+	 * touchscreen mode.
+	 */
+#define CHAN_MASK_TOUCHSCREEN_4WIRE	(0xf << 0)
+#define CHAN_MASK_TOUCHSCREEN_5WIRE	(0x1f << 0)
+	enum atmel_adc_ts_type	touchscreen_type;
+	struct input_dev	*ts_input;
+
+	u16			ts_sample_period_val;
+	u32			ts_pressure_threshold;
 };
 
 static irqreturn_t at91_adc_trigger_handler(int irq, void *p)
@@ -99,14 +142,10 @@ static irqreturn_t at91_adc_trigger_handler(int irq, void *p)
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t at91_adc_eoc_trigger(int irq, void *private)
+/* Handler for classic adc channel eoc trigger */
+void handle_adc_eoc_trigger(int irq, struct iio_dev *idev)
 {
-	struct iio_dev *idev = private;
 	struct at91_adc_state *st = iio_priv(idev);
-	u32 status = at91_adc_readl(st, st->registers->status_register);
-
-	if (!(status & st->registers->drdy_mask))
-		return IRQ_HANDLED;
 
 	if (iio_buffer_enabled(idev)) {
 		disable_irq_nosync(irq);
@@ -116,6 +155,115 @@ static irqreturn_t at91_adc_eoc_trigger(int irq, void *private)
 		st->done = true;
 		wake_up_interruptible(&st->wq_data_avail);
 	}
+}
+
+static int at91_ts_sample(struct at91_adc_state *st)
+{
+	unsigned int xscale, yscale, reg, z1, z2;
+	unsigned int x, y, pres, xpos, ypos;
+	unsigned int rxp = 1;
+	unsigned int factor = 1000;
+	struct iio_dev *idev = iio_priv_to_dev(st);
+
+	unsigned int xyz_mask_bits = st->res;
+	unsigned int xyz_mask = (1 << xyz_mask_bits) - 1;
+
+	/* calculate position */
+	/* x position = (x / xscale) * max, max = 2^MAX_POS_BITS - 1 */
+	reg = at91_adc_readl(st, AT91_ADC_TSXPOSR);
+	xpos = reg & xyz_mask;
+	x = (xpos << MAX_POS_BITS) - xpos;
+	xscale = (reg >> 16) & xyz_mask;
+	if (xscale == 0) {
+		dev_err(&idev->dev, "Error: xscale == 0!\n");
+		return -1;
+	}
+	x /= xscale;
+
+	/* y position = (y / yscale) * max, max = 2^MAX_POS_BITS - 1 */
+	reg = at91_adc_readl(st, AT91_ADC_TSYPOSR);
+	ypos = reg & xyz_mask;
+	y = (ypos << MAX_POS_BITS) - ypos;
+	yscale = (reg >> 16) & xyz_mask;
+	if (yscale == 0) {
+		dev_err(&idev->dev, "Error: yscale == 0!\n");
+		return -1;
+	}
+	y /= yscale;
+
+	/* calculate the pressure */
+	reg = at91_adc_readl(st, AT91_ADC_TSPRESSR);
+	z1 = reg & xyz_mask;
+	z2 = (reg >> 16) & xyz_mask;
+
+	if (z1 != 0)
+		pres = rxp * (x * factor / 1024) * (z2 * factor / z1 - factor)
+			/ factor;
+	else
+		pres = st->ts_pressure_threshold;	/* no pen contacted */
+
+	dev_dbg(&idev->dev, "xpos = %d, xscale = %d, ypos = %d, yscale = %d, z1 = %d, z2 = %d, press = %d\n",
+				xpos, xscale, ypos, yscale, z1, z2, pres);
+
+	if (pres < st->ts_pressure_threshold) {
+		dev_dbg(&idev->dev, "x = %d, y = %d, pressure = %d\n",
+					x, y, pres / factor);
+		input_report_abs(st->ts_input, ABS_X, x);
+		input_report_abs(st->ts_input, ABS_Y, y);
+		input_report_abs(st->ts_input, ABS_PRESSURE, pres);
+		input_report_key(st->ts_input, BTN_TOUCH, 1);
+		input_sync(st->ts_input);
+	} else {
+		dev_dbg(&idev->dev, "pressure too low: not reporting\n");
+	}
+
+	return 0;
+}
+
+static irqreturn_t at91_adc_interrupt(int irq, void *private)
+{
+	struct iio_dev *idev = private;
+	struct at91_adc_state *st = iio_priv(idev);
+	u32 status = at91_adc_readl(st, st->registers->status_register);
+	const uint32_t ts_data_irq_mask =
+		AT91_ADC_IER_XRDY |
+		AT91_ADC_IER_YRDY |
+		AT91_ADC_IER_PRDY;
+
+	if (status & st->registers->drdy_mask)
+		handle_adc_eoc_trigger(irq, idev);
+
+	if (status & AT91_ADC_IER_PEN) {
+		at91_adc_writel(st, AT91_ADC_IDR, AT91_ADC_IER_PEN);
+		at91_adc_writel(st, AT91_ADC_IER, AT91_ADC_IER_NOPEN |
+			ts_data_irq_mask);
+		/* Set up period trigger for sampling */
+		at91_adc_writel(st, st->registers->trigger_register,
+			AT91_ADC_TRGR_MOD_PERIOD_TRIG |
+			AT91_ADC_TRGR_TRGPER_(st->ts_sample_period_val));
+	} else if (status & AT91_ADC_IER_NOPEN) {
+		at91_adc_writel(st, st->registers->trigger_register, 0);
+		at91_adc_writel(st, AT91_ADC_IDR, AT91_ADC_IER_NOPEN |
+			ts_data_irq_mask);
+		at91_adc_writel(st, AT91_ADC_IER, AT91_ADC_IER_PEN);
+
+		input_report_key(st->ts_input, BTN_TOUCH, 0);
+		input_sync(st->ts_input);
+	} else if ((status & ts_data_irq_mask) == ts_data_irq_mask) {
+		/* Now all touchscreen data is ready */
+
+		if (status & AT91_ADC_ISR_PENS) {
+			/* validate data by pen contact */
+			at91_ts_sample(st);
+		} else {
+			/* triggered by event that is no pen contact, just read
+			 * them to clean the interrupt and discard all.
+			 */
+			at91_adc_readl(st, AT91_ADC_TSXPOSR);
+			at91_adc_readl(st, AT91_ADC_TSYPOSR);
+			at91_adc_readl(st, AT91_ADC_TSPRESSR);
+		}
+	}
 
 	return IRQ_HANDLED;
 }
@@ -125,6 +273,16 @@ static int at91_adc_channel_init(struct iio_dev *idev)
 	struct at91_adc_state *st = iio_priv(idev);
 	struct iio_chan_spec *chan_array, *timestamp;
 	int bit, idx = 0;
+	unsigned long rsvd_mask = 0;
+
+	/* If touchscreen is enable, then reserve the adc channels */
+	if (st->touchscreen_type == ATMEL_ADC_TOUCHSCREEN_4WIRE)
+		rsvd_mask = CHAN_MASK_TOUCHSCREEN_4WIRE;
+	else if (st->touchscreen_type == ATMEL_ADC_TOUCHSCREEN_5WIRE)
+		rsvd_mask = CHAN_MASK_TOUCHSCREEN_5WIRE;
+
+	/* set up the channel mask to reserve touchscreen channels */
+	st->channels_mask &= ~rsvd_mask;
 
 	idev->num_channels = bitmap_weight(&st->channels_mask,
 					   st->num_channels) + 1;
@@ -473,6 +631,39 @@ static u32 calc_startup_ticks_9x5(u8 startup_time, u32 adc_clk_khz)
 
 static const struct of_device_id at91_adc_dt_ids[];
 
+static int at91_adc_probe_dt_ts(struct device_node *node,
+	struct at91_adc_state *st, struct device *dev)
+{
+	int ret;
+	u32 prop;
+
+	ret = of_property_read_u32(node, "atmel,adc-ts-wires", &prop);
+	if (ret) {
+		dev_info(dev, "ADC Touch screen is disabled.\n");
+		return 0;
+	}
+
+	switch (prop) {
+	case 4:
+	case 5:
+		st->touchscreen_type = prop;
+		break;
+	default:
+		dev_err(dev, "Unsupported number of touchscreen wires (%d). Should be 4 or 5.\n", prop);
+		return -EINVAL;
+	}
+
+	prop = 0;
+	of_property_read_u32(node, "atmel,adc-ts-pressure-threshold", &prop);
+	st->ts_pressure_threshold = prop;
+	if (st->ts_pressure_threshold) {
+		return 0;
+	} else {
+		dev_err(dev, "Invalid pressure threshold for the touchscreen\n");
+		return -EINVAL;
+	}
+}
+
 static int at91_adc_probe_dt(struct at91_adc_state *st,
 			     struct platform_device *pdev)
 {
@@ -554,6 +745,12 @@ static int at91_adc_probe_dt(struct at91_adc_state *st,
 		i++;
 	}
 
+	/* Check if touchscreen is supported. */
+	if (st->caps->has_ts)
+		return at91_adc_probe_dt_ts(node, st, &idev->dev);
+	else
+		dev_info(&idev->dev, "not support touchscreen in the adc compatible string.\n");
+
 	return 0;
 
 error_ret:
@@ -585,6 +782,114 @@ static const struct iio_info at91_adc_info = {
 	.read_raw = &at91_adc_read_raw,
 };
 
+/* Touchscreen related functions */
+static int atmel_ts_open(struct input_dev *dev)
+{
+	struct at91_adc_state *st = input_get_drvdata(dev);
+
+	at91_adc_writel(st, AT91_ADC_IER, AT91_ADC_IER_PEN);
+	return 0;
+}
+
+static void atmel_ts_close(struct input_dev *dev)
+{
+	struct at91_adc_state *st = input_get_drvdata(dev);
+
+	at91_adc_writel(st, AT91_ADC_IDR, AT91_ADC_IER_PEN);
+}
+
+static int at91_ts_hw_init(struct at91_adc_state *st, u32 adc_clk_khz)
+{
+	u32 reg = 0, pendbc;
+	int i = 0;
+
+	if (st->touchscreen_type == ATMEL_ADC_TOUCHSCREEN_4WIRE)
+		reg = AT91_ADC_TSMR_TSMODE_4WIRE_PRESS;
+	else
+		reg = AT91_ADC_TSMR_TSMODE_5WIRE;
+
+	/* a Pen Detect Debounce Time is necessary for the ADC Touch to avoid
+	 * pen detect noise.
+	 * The formula is : Pen Detect Debounce Time = (2 ^ pendbc) / ADCClock
+	 */
+	pendbc = round_up(TOUCH_PEN_DETECT_DEBOUNCE_US * adc_clk_khz / 1000, 1);
+
+	while (pendbc >> ++i)
+		;	/* Empty! Find the shift offset */
+	if (abs(pendbc - (1 << i)) < abs(pendbc - (1 << (i - 1))))
+		pendbc = i;
+	else
+		pendbc = i - 1;
+
+	if (st->caps->has_tsmr) {
+		reg |= AT91_ADC_TSMR_TSAV_(st->caps->ts_filter_average)
+				& AT91_ADC_TSMR_TSAV;
+		reg |= AT91_ADC_TSMR_PENDBC_(pendbc) & AT91_ADC_TSMR_PENDBC;
+		reg |= AT91_ADC_TSMR_NOTSDMA;
+		reg |= AT91_ADC_TSMR_PENDET_ENA;
+		reg |= 0x03 << 8;	/* TSFREQ, need bigger than TSAV */
+
+		at91_adc_writel(st, AT91_ADC_TSMR, reg);
+	} else {
+		/* TODO: for 9g45 which has no TSMR */
+	}
+
+	/* Change adc internal resistor value for better pen detection,
+	 * default value is 100 kOhm.
+	 * 0 = 200 kOhm, 1 = 150 kOhm, 2 = 100 kOhm, 3 = 50 kOhm
+	 * option only available on ES2 and higher
+	 */
+	at91_adc_writel(st, AT91_ADC_ACR, st->caps->ts_pen_detect_sensitivity
+			& AT91_ADC_ACR_PENDETSENS);
+
+	/* Sample Peroid Time = (TRGPER + 1) / ADCClock */
+	st->ts_sample_period_val = round_up((TOUCH_SAMPLE_PERIOD_US *
+			adc_clk_khz / 1000) - 1, 1);
+
+	return 0;
+}
+
+static int at91_ts_register(struct at91_adc_state *st,
+		struct platform_device *pdev)
+{
+	struct input_dev *input;
+	struct iio_dev *idev = iio_priv_to_dev(st);
+	int ret;
+
+	input = input_allocate_device();
+	if (!input) {
+		dev_err(&idev->dev, "Failed to allocate TS device!\n");
+		return -ENOMEM;
+	}
+
+	input->name = DRIVER_NAME;
+	input->id.bustype = BUS_HOST;
+	input->dev.parent = &pdev->dev;
+	input->open = atmel_ts_open;
+	input->close = atmel_ts_close;
+
+	__set_bit(EV_ABS, input->evbit);
+	__set_bit(EV_KEY, input->evbit);
+	__set_bit(BTN_TOUCH, input->keybit);
+	input_set_abs_params(input, ABS_X, 0, (1 << MAX_POS_BITS) - 1, 0, 0);
+	input_set_abs_params(input, ABS_Y, 0, (1 << MAX_POS_BITS) - 1, 0, 0);
+	input_set_abs_params(input, ABS_PRESSURE, 0, 0xffffff, 0, 0);
+
+	st->ts_input = input;
+	input_set_drvdata(input, st);
+
+	ret = input_register_device(input);
+	if (ret)
+		input_free_device(st->ts_input);
+
+	return ret;
+}
+
+static void at91_ts_unregister(struct at91_adc_state *st)
+{
+	input_unregister_device(st->ts_input);
+}
+
 static int at91_adc_probe(struct platform_device *pdev)
 {
 	unsigned int prsc, mstrclk, ticks, adc_clk, adc_clk_khz, shtim;
@@ -636,7 +941,7 @@ static int at91_adc_probe(struct platform_device *pdev)
 	at91_adc_writel(st, AT91_ADC_CR, AT91_ADC_SWRST);
 	at91_adc_writel(st, AT91_ADC_IDR, 0xFFFFFFFF);
 	ret = request_irq(st->irq,
-			  at91_adc_eoc_trigger,
+			  at91_adc_interrupt,
 			  0,
 			  pdev->dev.driver->name,
 			  idev);
@@ -681,6 +986,10 @@ static int at91_adc_probe(struct platform_device *pdev)
 	mstrclk = clk_get_rate(st->clk);
 	adc_clk = clk_get_rate(st->adc_clk);
 	adc_clk_khz = adc_clk / 1000;
+
+	dev_dbg(&pdev->dev, "Master clock is set as: %d Hz, adc_clk should set as: %d Hz\n",
+		mstrclk, adc_clk);
+
 	prsc = (mstrclk / (2 * adc_clk)) - 1;
 
 	if (!st->startup_time) {
@@ -717,30 +1026,52 @@ static int at91_adc_probe(struct platform_device *pdev)
 	init_waitqueue_head(&st->wq_data_avail);
 	mutex_init(&st->lock);
 
-	ret = at91_adc_buffer_init(idev);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "Couldn't initialize the buffer.\n");
-		goto error_disable_adc_clk;
-	}
+	/*
+	 * Since touch screen will set trigger register as period trigger. So
+	 * when touch screen is enabled, then we have to disable hardware
+	 * trigger for classic adc.
+	 */
+	if (!st->touchscreen_type) {
+		ret = at91_adc_buffer_init(idev);
+		if (ret < 0) {
+			dev_err(&pdev->dev, "Couldn't initialize the buffer.\n");
+			goto error_disable_adc_clk;
+		}
 
-	ret = at91_adc_trigger_init(idev);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "Couldn't setup the triggers.\n");
-		goto error_unregister_buffer;
+		ret = at91_adc_trigger_init(idev);
+		if (ret < 0) {
+			dev_err(&pdev->dev, "Couldn't setup the triggers.\n");
+			at91_adc_buffer_remove(idev);
+			goto error_disable_adc_clk;
+		}
+	} else {
+		if (!st->caps->has_tsmr) {
+			dev_err(&pdev->dev, "We don't support non-TSMR adc\n");
+			goto error_disable_adc_clk;
+		}
+
+		ret = at91_ts_register(st, pdev);
+		if (ret)
+			goto error_disable_adc_clk;
+
+		at91_ts_hw_init(st, adc_clk_khz);
 	}
 
 	ret = iio_device_register(idev);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Couldn't register the device.\n");
-		goto error_remove_triggers;
+		goto error_iio_device_register;
 	}
 
 	return 0;
 
-error_remove_triggers:
-	at91_adc_trigger_remove(idev);
-error_unregister_buffer:
-	at91_adc_buffer_remove(idev);
+error_iio_device_register:
+	if (!st->touchscreen_type) {
+		at91_adc_trigger_remove(idev);
+		at91_adc_buffer_remove(idev);
+	} else {
+		at91_ts_unregister(st);
+	}
 error_disable_adc_clk:
 	clk_disable_unprepare(st->adc_clk);
 error_disable_clk:
@@ -756,8 +1087,12 @@ static int at91_adc_remove(struct platform_device *pdev)
 	struct at91_adc_state *st = iio_priv(idev);
 
 	iio_device_unregister(idev);
-	at91_adc_trigger_remove(idev);
-	at91_adc_buffer_remove(idev);
+	if (!st->touchscreen_type) {
+		at91_adc_trigger_remove(idev);
+		at91_adc_buffer_remove(idev);
+	} else {
+		at91_ts_unregister(st);
+	}
 	clk_disable_unprepare(st->adc_clk);
 	clk_disable_unprepare(st->clk);
 	free_irq(st->irq, idev);
@@ -780,6 +1115,7 @@ static struct at91_adc_caps at91sam9260_caps = {
 };
 
 static struct at91_adc_caps at91sam9g45_caps = {
+	.has_ts = true,
 	.calc_startup_ticks = calc_startup_ticks_9260,	/* same as 9260 */
 	.num_channels = 8,
 	.registers = {
@@ -793,6 +1129,10 @@ static struct at91_adc_caps at91sam9g45_caps = {
 };
 
 static struct at91_adc_caps at91sam9x5_caps = {
+	.has_ts = true,
+	.has_tsmr = true,
+	.ts_filter_average = 3,
+	.ts_pen_detect_sensitivity = 2,
 	.calc_startup_ticks = calc_startup_ticks_9x5,
 	.num_channels = 12,
 	.registers = {
@@ -819,7 +1159,7 @@ static struct platform_driver at91_adc_driver = {
 	.probe = at91_adc_probe,
 	.remove = at91_adc_remove,
 	.driver = {
-		   .name = "at91_adc",
+		   .name = DRIVER_NAME,
 		   .of_match_table = of_match_ptr(at91_adc_dt_ids),
 	},
 };
-- 
cgit 


From 383382501193dc70fb92393eb585a39f9d39b378 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Thu, 17 Oct 2013 18:06:46 +0200
Subject: spi/s3c64xx: Add missing pm_runtime_set_active() call in probe()

Mark device as PM runtime active during initialization to reflect
actual device power/clocks state. This reduces the enable count for SPI
bus controller gate clock so it can be disabled when the bus controller
is not used.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-s3c64xx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index a80376dc3a10..05fab71c1c45 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -1428,6 +1428,7 @@ static int s3c64xx_spi_probe(struct platform_device *pdev)
 	       S3C64XX_SPI_INT_TX_OVERRUN_EN | S3C64XX_SPI_INT_TX_UNDERRUN_EN,
 	       sdd->regs + S3C64XX_SPI_INT_EN);
 
+	pm_runtime_set_active(&pdev->dev);
 	pm_runtime_enable(&pdev->dev);
 
 	if (spi_register_master(master)) {
-- 
cgit 


From 7b8f7eef1afcb834d701f369dbd2e18b03fd7647 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Thu, 17 Oct 2013 14:45:41 +0200
Subject: spi/s3c64xx: Add missing pm_runtime_put on setup fail

pm_runtime_put() wasn't called if clock rate could not be set up in
s3c64xx_spi_setup() leading to invalid count of device pm_runtime usage.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-s3c64xx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 05fab71c1c45..ae07c3afe956 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -1121,6 +1121,7 @@ static int s3c64xx_spi_setup(struct spi_device *spi)
 	return 0;
 
 setup_exit:
+	pm_runtime_put(&sdd->pdev->dev);
 	/* setup() returns with device de-selected */
 	disable_cs(sdd, spi);
 
-- 
cgit 


From beb02cddd64b56081951de9048952f0fa1ff545f Mon Sep 17 00:00:00 2001
From: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Date: Thu, 17 Oct 2013 14:01:35 +0400
Subject: ALSA: pxa: slightly refactor reset handling

PXA25x also shows some problems when using interrupts during reset
handling. Thus do not use interrupts on all pxa kinds (to detect codec
ready state). Instead use a common mdelay-loop on all platforms to
detect codecs becoming ready.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/arm/pxa2xx-ac97-lib.c | 27 ++++++++++-----------------
 1 file changed, 10 insertions(+), 17 deletions(-)

diff --git a/sound/arm/pxa2xx-ac97-lib.c b/sound/arm/pxa2xx-ac97-lib.c
index e6f4633b8dd5..99a466822a7d 100644
--- a/sound/arm/pxa2xx-ac97-lib.c
+++ b/sound/arm/pxa2xx-ac97-lib.c
@@ -117,8 +117,7 @@ static inline void pxa_ac97_warm_pxa25x(void)
 {
 	gsr_bits = 0;
 
-	GCR |= GCR_WARM_RST | GCR_PRIRDY_IEN | GCR_SECRDY_IEN;
-	wait_event_timeout(gsr_wq, gsr_bits & (GSR_PCR | GSR_SCR), 1);
+	GCR |= GCR_WARM_RST;
 }
 
 static inline void pxa_ac97_cold_pxa25x(void)
@@ -129,8 +128,6 @@ static inline void pxa_ac97_cold_pxa25x(void)
 	gsr_bits = 0;
 
 	GCR = GCR_COLD_RST;
-	GCR |= GCR_CDONE_IE|GCR_SDONE_IE;
-	wait_event_timeout(gsr_wq, gsr_bits & (GSR_PCR | GSR_SCR), 1);
 }
 #endif
 
@@ -149,8 +146,6 @@ static inline void pxa_ac97_warm_pxa27x(void)
 
 static inline void pxa_ac97_cold_pxa27x(void)
 {
-	unsigned int timeout;
-
 	GCR &=  GCR_COLD_RST;  /* clear everything but nCRST */
 	GCR &= ~GCR_COLD_RST;  /* then assert nCRST */
 
@@ -161,29 +156,20 @@ static inline void pxa_ac97_cold_pxa27x(void)
 	udelay(5);
 	clk_disable(ac97conf_clk);
 	GCR = GCR_COLD_RST | GCR_WARM_RST;
-	timeout = 100;     /* wait for the codec-ready bit to be set */
-	while (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR)) && timeout--)
-		mdelay(1);
 }
 #endif
 
 #ifdef CONFIG_PXA3xx
 static inline void pxa_ac97_warm_pxa3xx(void)
 {
-	int timeout = 100;
-
 	gsr_bits = 0;
 
 	/* Can't use interrupts */
 	GCR |= GCR_WARM_RST;
-	while (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR)) && timeout--)
-		mdelay(1);
 }
 
 static inline void pxa_ac97_cold_pxa3xx(void)
 {
-	int timeout = 1000;
-
 	/* Hold CLKBPB for 100us */
 	GCR = 0;
 	GCR = GCR_CLKBPB;
@@ -199,14 +185,13 @@ static inline void pxa_ac97_cold_pxa3xx(void)
 	GCR &= ~(GCR_PRIRDY_IEN|GCR_SECRDY_IEN);
 
 	GCR = GCR_WARM_RST | GCR_COLD_RST;
-	while (!(GSR & (GSR_PCR | GSR_SCR)) && timeout--)
-		mdelay(10);
 }
 #endif
 
 bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97)
 {
 	unsigned long gsr;
+	unsigned int timeout = 100;
 
 #ifdef CONFIG_PXA25x
 	if (cpu_is_pxa25x())
@@ -224,6 +209,10 @@ bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97)
 	else
 #endif
 		BUG();
+
+	while (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR)) && timeout--)
+		mdelay(1);
+
 	gsr = GSR | gsr_bits;
 	if (!(gsr & (GSR_PCR | GSR_SCR))) {
 		printk(KERN_INFO "%s: warm reset timeout (GSR=%#lx)\n",
@@ -239,6 +228,7 @@ EXPORT_SYMBOL_GPL(pxa2xx_ac97_try_warm_reset);
 bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97)
 {
 	unsigned long gsr;
+	unsigned int timeout = 1000;
 
 #ifdef CONFIG_PXA25x
 	if (cpu_is_pxa25x())
@@ -257,6 +247,9 @@ bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97)
 #endif
 		BUG();
 
+	while (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR)) && timeout--)
+		mdelay(1);
+
 	gsr = GSR | gsr_bits;
 	if (!(gsr & (GSR_PCR | GSR_SCR))) {
 		printk(KERN_INFO "%s: cold reset timeout (GSR=%#lx)\n",
-- 
cgit 


From f62aa9b6c900a9aaf302c1f9ac1883c143afd832 Mon Sep 17 00:00:00 2001
From: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Date: Thu, 17 Oct 2013 14:01:36 +0400
Subject: ALSA: ASoC: pxa: fix pxa2xx-ac97 DAI initialization order

After recent changes to codec/DAI initialization order changes, codec
driver (wm9712 in my case) tries to access codec prior to
pxa2xx_ac97_hw_probe() being called (because DAIs are probed after all
codecs are probed). Move hw-related probe/remove/suspend/resume
functions to pxa2xx-ac97 driver level, instead of DAI level.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/pxa/pxa2xx-ac97.c | 56 ++++++++++++++++++++-------------------------
 1 file changed, 25 insertions(+), 31 deletions(-)

diff --git a/sound/soc/pxa/pxa2xx-ac97.c b/sound/soc/pxa/pxa2xx-ac97.c
index f1059d999de6..ae956e3f4b9d 100644
--- a/sound/soc/pxa/pxa2xx-ac97.c
+++ b/sound/soc/pxa/pxa2xx-ac97.c
@@ -89,33 +89,6 @@ static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_mic_mono_in = {
 	.filter_data	= &pxa2xx_ac97_pcm_aux_mic_mono_req,
 };
 
-#ifdef CONFIG_PM
-static int pxa2xx_ac97_suspend(struct snd_soc_dai *dai)
-{
-	return pxa2xx_ac97_hw_suspend();
-}
-
-static int pxa2xx_ac97_resume(struct snd_soc_dai *dai)
-{
-	return pxa2xx_ac97_hw_resume();
-}
-
-#else
-#define pxa2xx_ac97_suspend	NULL
-#define pxa2xx_ac97_resume	NULL
-#endif
-
-static int pxa2xx_ac97_probe(struct snd_soc_dai *dai)
-{
-	return pxa2xx_ac97_hw_probe(to_platform_device(dai->dev));
-}
-
-static int pxa2xx_ac97_remove(struct snd_soc_dai *dai)
-{
-	pxa2xx_ac97_hw_remove(to_platform_device(dai->dev));
-	return 0;
-}
-
 static int pxa2xx_ac97_hw_params(struct snd_pcm_substream *substream,
 				 struct snd_pcm_hw_params *params,
 				 struct snd_soc_dai *cpu_dai)
@@ -185,10 +158,6 @@ static struct snd_soc_dai_driver pxa_ac97_dai_driver[] = {
 {
 	.name = "pxa2xx-ac97",
 	.ac97_control = 1,
-	.probe = pxa2xx_ac97_probe,
-	.remove = pxa2xx_ac97_remove,
-	.suspend = pxa2xx_ac97_suspend,
-	.resume = pxa2xx_ac97_resume,
 	.playback = {
 		.stream_name = "AC97 Playback",
 		.channels_min = 2,
@@ -246,6 +215,12 @@ static int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
 		return -ENXIO;
 	}
 
+	ret = pxa2xx_ac97_hw_probe(pdev);
+	if (ret) {
+		dev_err(&pdev->dev, "PXA2xx AC97 hw probe error (%d)\n", ret);
+		return ret;
+	}
+
 	ret = snd_soc_set_ac97_ops(&pxa2xx_ac97_ops);
 	if (ret != 0)
 		return ret;
@@ -262,15 +237,34 @@ static int pxa2xx_ac97_dev_remove(struct platform_device *pdev)
 {
 	snd_soc_unregister_component(&pdev->dev);
 	snd_soc_set_ac97_ops(NULL);
+	pxa2xx_ac97_hw_remove(pdev);
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int pxa2xx_ac97_dev_suspend(struct device *dev)
+{
+	return pxa2xx_ac97_hw_suspend();
+}
+
+static int pxa2xx_ac97_dev_resume(struct device *dev)
+{
+	return pxa2xx_ac97_hw_resume();
+}
+
+static SIMPLE_DEV_PM_OPS(pxa2xx_ac97_pm_ops,
+		pxa2xx_ac97_dev_suspend, pxa2xx_ac97_dev_resume);
+#endif
+
 static struct platform_driver pxa2xx_ac97_driver = {
 	.probe		= pxa2xx_ac97_dev_probe,
 	.remove		= pxa2xx_ac97_dev_remove,
 	.driver		= {
 		.name	= "pxa2xx-ac97",
 		.owner	= THIS_MODULE,
+#ifdef CONFIG_PM_SLEEP
+		.pm	= &pxa2xx_ac97_pm_ops,
+#endif
 	},
 };
 
-- 
cgit 


From 7db1698f728e1176cc7869f22565e3faa8ec2b72 Mon Sep 17 00:00:00 2001
From: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Date: Thu, 17 Oct 2013 14:01:37 +0400
Subject: ALSA: ASoC: pxa: add asoc pm callbacks to pxa audio drivers

After convertion to snd_soc_register_card, platform driver should
reference snd_soc_pm_ops callbacks to properly suspend/resume sound
hardware. This was missed during conversion of PXA sound devices.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/pxa/brownstone.c     | 1 +
 sound/soc/pxa/corgi.c          | 1 +
 sound/soc/pxa/e740_wm9705.c    | 1 +
 sound/soc/pxa/e750_wm9705.c    | 1 +
 sound/soc/pxa/e800_wm9712.c    | 1 +
 sound/soc/pxa/imote2.c         | 1 +
 sound/soc/pxa/mioa701_wm9713.c | 1 +
 sound/soc/pxa/palm27x.c        | 1 +
 sound/soc/pxa/poodle.c         | 1 +
 sound/soc/pxa/tosa.c           | 1 +
 sound/soc/pxa/ttc-dkb.c        | 1 +
 11 files changed, 11 insertions(+)

diff --git a/sound/soc/pxa/brownstone.c b/sound/soc/pxa/brownstone.c
index 5b7d969f89a9..08acdc236bf8 100644
--- a/sound/soc/pxa/brownstone.c
+++ b/sound/soc/pxa/brownstone.c
@@ -163,6 +163,7 @@ static struct platform_driver mmp_driver = {
 	.driver		= {
 		.name	= "brownstone-audio",
 		.owner	= THIS_MODULE,
+		.pm     = &snd_soc_pm_ops,
 	},
 	.probe		= brownstone_probe,
 	.remove		= brownstone_remove,
diff --git a/sound/soc/pxa/corgi.c b/sound/soc/pxa/corgi.c
index f4cce1e80112..1853d41034bf 100644
--- a/sound/soc/pxa/corgi.c
+++ b/sound/soc/pxa/corgi.c
@@ -329,6 +329,7 @@ static struct platform_driver corgi_driver = {
 	.driver		= {
 		.name	= "corgi-audio",
 		.owner	= THIS_MODULE,
+		.pm     = &snd_soc_pm_ops,
 	},
 	.probe		= corgi_probe,
 	.remove		= corgi_remove,
diff --git a/sound/soc/pxa/e740_wm9705.c b/sound/soc/pxa/e740_wm9705.c
index 70d799b13f0d..44b5c09d296b 100644
--- a/sound/soc/pxa/e740_wm9705.c
+++ b/sound/soc/pxa/e740_wm9705.c
@@ -178,6 +178,7 @@ static struct platform_driver e740_driver = {
 	.driver		= {
 		.name	= "e740-audio",
 		.owner	= THIS_MODULE,
+		.pm     = &snd_soc_pm_ops,
 	},
 	.probe		= e740_probe,
 	.remove		= e740_remove,
diff --git a/sound/soc/pxa/e750_wm9705.c b/sound/soc/pxa/e750_wm9705.c
index f94d2ab51351..c34e447eb991 100644
--- a/sound/soc/pxa/e750_wm9705.c
+++ b/sound/soc/pxa/e750_wm9705.c
@@ -160,6 +160,7 @@ static struct platform_driver e750_driver = {
 	.driver		= {
 		.name	= "e750-audio",
 		.owner	= THIS_MODULE,
+		.pm     = &snd_soc_pm_ops,
 	},
 	.probe		= e750_probe,
 	.remove		= e750_remove,
diff --git a/sound/soc/pxa/e800_wm9712.c b/sound/soc/pxa/e800_wm9712.c
index 8768a640dd71..3137f800b43f 100644
--- a/sound/soc/pxa/e800_wm9712.c
+++ b/sound/soc/pxa/e800_wm9712.c
@@ -150,6 +150,7 @@ static struct platform_driver e800_driver = {
 	.driver		= {
 		.name	= "e800-audio",
 		.owner	= THIS_MODULE,
+		.pm     = &snd_soc_pm_ops,
 	},
 	.probe		= e800_probe,
 	.remove		= e800_remove,
diff --git a/sound/soc/pxa/imote2.c b/sound/soc/pxa/imote2.c
index eef1f7b7b38e..fd2f4eda1fd3 100644
--- a/sound/soc/pxa/imote2.c
+++ b/sound/soc/pxa/imote2.c
@@ -91,6 +91,7 @@ static struct platform_driver imote2_driver = {
 	.driver		= {
 		.name	= "imote2-audio",
 		.owner	= THIS_MODULE,
+		.pm     = &snd_soc_pm_ops,
 	},
 	.probe		= imote2_probe,
 	.remove		= imote2_remove,
diff --git a/sound/soc/pxa/mioa701_wm9713.c b/sound/soc/pxa/mioa701_wm9713.c
index bbea7780eac6..160c5245448f 100644
--- a/sound/soc/pxa/mioa701_wm9713.c
+++ b/sound/soc/pxa/mioa701_wm9713.c
@@ -215,6 +215,7 @@ static struct platform_driver mioa701_wm9713_driver = {
 	.driver		= {
 		.name		= "mioa701-wm9713",
 		.owner		= THIS_MODULE,
+		.pm     = &snd_soc_pm_ops,
 	},
 };
 
diff --git a/sound/soc/pxa/palm27x.c b/sound/soc/pxa/palm27x.c
index e1ffcdd9a649..3284c4b901cb 100644
--- a/sound/soc/pxa/palm27x.c
+++ b/sound/soc/pxa/palm27x.c
@@ -181,6 +181,7 @@ static struct platform_driver palm27x_wm9712_driver = {
 	.driver		= {
 		.name		= "palm27x-asoc",
 		.owner		= THIS_MODULE,
+		.pm     = &snd_soc_pm_ops,
 	},
 };
 
diff --git a/sound/soc/pxa/poodle.c b/sound/soc/pxa/poodle.c
index fafe46355c31..c93e138d8dc3 100644
--- a/sound/soc/pxa/poodle.c
+++ b/sound/soc/pxa/poodle.c
@@ -303,6 +303,7 @@ static struct platform_driver poodle_driver = {
 	.driver		= {
 		.name	= "poodle-audio",
 		.owner	= THIS_MODULE,
+		.pm     = &snd_soc_pm_ops,
 	},
 	.probe		= poodle_probe,
 	.remove		= poodle_remove,
diff --git a/sound/soc/pxa/tosa.c b/sound/soc/pxa/tosa.c
index a3fe19123f07..1d9c2ed223bc 100644
--- a/sound/soc/pxa/tosa.c
+++ b/sound/soc/pxa/tosa.c
@@ -275,6 +275,7 @@ static struct platform_driver tosa_driver = {
 	.driver		= {
 		.name	= "tosa-audio",
 		.owner	= THIS_MODULE,
+		.pm     = &snd_soc_pm_ops,
 	},
 	.probe		= tosa_probe,
 	.remove		= tosa_remove,
diff --git a/sound/soc/pxa/ttc-dkb.c b/sound/soc/pxa/ttc-dkb.c
index 13c9ee0cb83b..0b535b570622 100644
--- a/sound/soc/pxa/ttc-dkb.c
+++ b/sound/soc/pxa/ttc-dkb.c
@@ -160,6 +160,7 @@ static struct platform_driver ttc_dkb_driver = {
 	.driver		= {
 		.name	= "ttc-dkb-audio",
 		.owner	= THIS_MODULE,
+		.pm     = &snd_soc_pm_ops,
 	},
 	.probe		= ttc_dkb_probe,
 	.remove		= ttc_dkb_remove,
-- 
cgit 


From 3d8c8bc0250f7cb11f887691b7473b51adcd2bcb Mon Sep 17 00:00:00 2001
From: Brian Austin <brian.austin@cirrus.com>
Date: Thu, 17 Oct 2013 11:03:33 -0500
Subject: ASoC: cs42l73: Add platform data support for cs42l73 codec

Add support for RST GPIO and Charge Pump Freq in platform data

Signed-off-by: Brian Austin <brian.austin@cirrus.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/sound/cs42l73.h    | 22 ++++++++++++++++++++
 sound/soc/codecs/cs42l73.c | 51 ++++++++++++++++++++++++++++++----------------
 sound/soc/codecs/cs42l73.h |  1 +
 3 files changed, 56 insertions(+), 18 deletions(-)
 create mode 100644 include/sound/cs42l73.h

diff --git a/include/sound/cs42l73.h b/include/sound/cs42l73.h
new file mode 100644
index 000000000000..f354be4cdc9e
--- /dev/null
+++ b/include/sound/cs42l73.h
@@ -0,0 +1,22 @@
+/*
+ * linux/sound/cs42l73.h -- Platform data for CS42L73
+ *
+ * Copyright (c) 2012 Cirrus Logic Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __CS42L73_H
+#define __CS42L73_H
+
+struct cs42l73_platform_data {
+	/* RST GPIO */
+	unsigned int reset_gpio;
+	unsigned int chgfreq;
+	int jack_detection;
+	unsigned int mclk_freq;
+};
+
+#endif /* __CS42L73_H */
diff --git a/sound/soc/codecs/cs42l73.c b/sound/soc/codecs/cs42l73.c
index 3b20c86cdb01..db9d39604d68 100644
--- a/sound/soc/codecs/cs42l73.c
+++ b/sound/soc/codecs/cs42l73.c
@@ -17,6 +17,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/delay.h>
+#include <linux/gpio.h>
 #include <linux/pm.h>
 #include <linux/i2c.h>
 #include <linux/regmap.h>
@@ -28,6 +29,7 @@
 #include <sound/soc-dapm.h>
 #include <sound/initval.h>
 #include <sound/tlv.h>
+#include <sound/cs42l73.h>
 #include "cs42l73.h"
 
 struct sp_config {
@@ -35,6 +37,7 @@ struct sp_config {
 	u32 srate;
 };
 struct  cs42l73_private {
+	struct cs42l73_platform_data pdata;
 	struct sp_config config[3];
 	struct regmap *regmap;
 	u32 sysclk;
@@ -310,15 +313,6 @@ static const struct soc_enum ng_delay_enum =
 	SOC_ENUM_SINGLE(CS42L73_NGCAB, 0,
 		ARRAY_SIZE(cs42l73_ng_delay_text), cs42l73_ng_delay_text);
 
-static const char * const charge_pump_freq_text[] = {
-	"0", "1", "2", "3", "4",
-	"5", "6", "7", "8", "9",
-	"10", "11", "12", "13", "14", "15" };
-
-static const struct soc_enum charge_pump_enum =
-	SOC_ENUM_SINGLE(CS42L73_CPFCHC, 4,
-		ARRAY_SIZE(charge_pump_freq_text), charge_pump_freq_text);
-
 static const char * const cs42l73_mono_mix_texts[] = {
 	"Left", "Right", "Mono Mix"};
 
@@ -511,8 +505,6 @@ static const struct snd_kcontrol_new cs42l73_snd_controls[] = {
 	SOC_SINGLE("NG Threshold", CS42L73_NGCAB, 2, 7, 0),
 	SOC_ENUM("NG Delay", ng_delay_enum),
 
-	SOC_ENUM("Charge Pump Frequency", charge_pump_enum),
-
 	SOC_DOUBLE_R_TLV("XSP-IP Volume",
 			CS42L73_XSPAIPAA, CS42L73_XSPBIPBA, 0, 0x3F, 1,
 			attn_tlv),
@@ -1367,11 +1359,16 @@ static int cs42l73_probe(struct snd_soc_codec *codec)
 		return ret;
 	}
 
-	regcache_cache_only(cs42l73->regmap, true);
-
 	cs42l73_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
-	cs42l73->mclksel = CS42L73_CLKID_MCLK1;	/* MCLK1 as master clk */
+	/* Set Charge Pump Frequency */
+	if (cs42l73->pdata.chgfreq)
+		snd_soc_update_bits(codec, CS42L73_CPFCHC,
+				    CS42L73_CHARGEPUMP_MASK,
+					cs42l73->pdata.chgfreq << 4);
+
+	/* MCLK1 as master clk */
+	cs42l73->mclksel = CS42L73_CLKID_MCLK1;
 	cs42l73->mclk = 0;
 
 	return ret;
@@ -1415,6 +1412,7 @@ static int cs42l73_i2c_probe(struct i2c_client *i2c_client,
 			     const struct i2c_device_id *id)
 {
 	struct cs42l73_private *cs42l73;
+	struct cs42l73_platform_data *pdata = dev_get_platdata(&i2c_client->dev);
 	int ret;
 	unsigned int devid = 0;
 	unsigned int reg;
@@ -1426,14 +1424,32 @@ static int cs42l73_i2c_probe(struct i2c_client *i2c_client,
 		return -ENOMEM;
 	}
 
-	i2c_set_clientdata(i2c_client, cs42l73);
-
 	cs42l73->regmap = devm_regmap_init_i2c(i2c_client, &cs42l73_regmap);
 	if (IS_ERR(cs42l73->regmap)) {
 		ret = PTR_ERR(cs42l73->regmap);
 		dev_err(&i2c_client->dev, "regmap_init() failed: %d\n", ret);
 		return ret;
 	}
+
+	if (pdata)
+		cs42l73->pdata = *pdata;
+
+	i2c_set_clientdata(i2c_client, cs42l73);
+
+	if (cs42l73->pdata.reset_gpio) {
+		ret = gpio_request_one(cs42l73->pdata.reset_gpio,
+				       GPIOF_OUT_INIT_HIGH, "CS42L73 /RST");
+		if (ret < 0) {
+			dev_err(&i2c_client->dev, "Failed to request /RST %d: %d\n",
+				cs42l73->pdata.reset_gpio, ret);
+			return ret;
+		}
+		gpio_set_value_cansleep(cs42l73->pdata.reset_gpio, 0);
+		gpio_set_value_cansleep(cs42l73->pdata.reset_gpio, 1);
+	}
+
+	regcache_cache_bypass(cs42l73->regmap, true);
+
 	/* initialize codec */
 	ret = regmap_read(cs42l73->regmap, CS42L73_DEVID_AB, &reg);
 	devid = (reg & 0xFF) << 12;
@@ -1444,7 +1460,6 @@ static int cs42l73_i2c_probe(struct i2c_client *i2c_client,
 	ret = regmap_read(cs42l73->regmap, CS42L73_DEVID_E, &reg);
 	devid |= (reg & 0xF0) >> 4;
 
-
 	if (devid != CS42L73_DEVID) {
 		ret = -ENODEV;
 		dev_err(&i2c_client->dev,
@@ -1462,7 +1477,7 @@ static int cs42l73_i2c_probe(struct i2c_client *i2c_client,
 	dev_info(&i2c_client->dev,
 		 "Cirrus Logic CS42L73, Revision: %02X\n", reg & 0xFF);
 
-	regcache_cache_only(cs42l73->regmap, true);
+	regcache_cache_bypass(cs42l73->regmap, false);
 
 	ret =  snd_soc_register_codec(&i2c_client->dev,
 			&soc_codec_dev_cs42l73, cs42l73_dai,
diff --git a/sound/soc/codecs/cs42l73.h b/sound/soc/codecs/cs42l73.h
index f30a4c4d62e6..4f83d39496a8 100644
--- a/sound/soc/codecs/cs42l73.h
+++ b/sound/soc/codecs/cs42l73.h
@@ -159,6 +159,7 @@
 #define THMOVLD_115C		2
 #define THMOVLD_098C		3
 
+#define CS42L73_CHARGEPUMP_MASK	(0xF0)
 
 /* CS42L73_ASPC, CS42L73_XSPC, CS42L73_VSPC */
 #define	SP_3ST			(1 << 7)
-- 
cgit 


From f9ca060680e7c26a88d990ad9370572274b0d54b Mon Sep 17 00:00:00 2001
From: Brian Austin <brian.austin@cirrus.com>
Date: Thu, 17 Oct 2013 11:03:34 -0500
Subject: ASoC: cs42l73: Namespace defines for cs42l73 codec

Cleanup to namespace the defines for the cs42l73 driver

Signed-off-by: Brian Austin <brian.austin@cirrus.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/cs42l73.c |  38 ++++++++---------
 sound/soc/codecs/cs42l73.h | 104 ++++++++++++++++++++++-----------------------
 2 files changed, 70 insertions(+), 72 deletions(-)

diff --git a/sound/soc/codecs/cs42l73.c b/sound/soc/codecs/cs42l73.c
index db9d39604d68..89efc3c6aefc 100644
--- a/sound/soc/codecs/cs42l73.c
+++ b/sound/soc/codecs/cs42l73.c
@@ -1047,11 +1047,11 @@ static int cs42l73_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
 
 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 	case SND_SOC_DAIFMT_CBM_CFM:
-		mmcc |= MS_MASTER;
+		mmcc |= CS42L73_MS_MASTER;
 		break;
 
 	case SND_SOC_DAIFMT_CBS_CFS:
-		mmcc &= ~MS_MASTER;
+		mmcc &= ~CS42L73_MS_MASTER;
 		break;
 
 	default:
@@ -1063,11 +1063,11 @@ static int cs42l73_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
 
 	switch (format) {
 	case SND_SOC_DAIFMT_I2S:
-		spc &= ~SPDIF_PCM;
+		spc &= ~CS42L73_SPDIF_PCM;
 		break;
 	case SND_SOC_DAIFMT_DSP_A:
 	case SND_SOC_DAIFMT_DSP_B:
-		if (mmcc & MS_MASTER) {
+		if (mmcc & CS42L73_MS_MASTER) {
 			dev_err(codec->dev,
 				"PCM format in slave mode only\n");
 			return -EINVAL;
@@ -1077,25 +1077,25 @@ static int cs42l73_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
 				"PCM format is not supported on ASP port\n");
 			return -EINVAL;
 		}
-		spc |= SPDIF_PCM;
+		spc |= CS42L73_SPDIF_PCM;
 		break;
 	default:
 		return -EINVAL;
 	}
 
-	if (spc & SPDIF_PCM) {
+	if (spc & CS42L73_SPDIF_PCM) {
 		/* Clear PCM mode, clear PCM_BIT_ORDER bit for MSB->LSB */
-		spc &= ~(PCM_MODE_MASK | PCM_BIT_ORDER);
+		spc &= ~(CS42L73_PCM_MODE_MASK | CS42L73_PCM_BIT_ORDER);
 		switch (format) {
 		case SND_SOC_DAIFMT_DSP_B:
 			if (inv == SND_SOC_DAIFMT_IB_IF)
-				spc |= PCM_MODE0;
+				spc |= CS42L73_PCM_MODE0;
 			if (inv == SND_SOC_DAIFMT_IB_NF)
-				spc |= PCM_MODE1;
+				spc |= CS42L73_PCM_MODE1;
 		break;
 		case SND_SOC_DAIFMT_DSP_A:
 			if (inv == SND_SOC_DAIFMT_IB_IF)
-				spc |= PCM_MODE1;
+				spc |= CS42L73_PCM_MODE1;
 			break;
 		default:
 			return -EINVAL;
@@ -1155,7 +1155,7 @@ static int cs42l73_pcm_hw_params(struct snd_pcm_substream *substream,
 	int mclk_coeff;
 	int srate = params_rate(params);
 
-	if (priv->config[id].mmcc & MS_MASTER) {
+	if (priv->config[id].mmcc & CS42L73_MS_MASTER) {
 		/* CS42L73 Master */
 		/* MCLK -> srate */
 		mclk_coeff =
@@ -1174,13 +1174,13 @@ static int cs42l73_pcm_hw_params(struct snd_pcm_substream *substream,
 		priv->config[id].spc &= 0xFC;
 		/* Use SCLK=64*Fs if internal MCLK >= 6.4MHz */
 		if (priv->mclk >= 6400000)
-			priv->config[id].spc |= MCK_SCLK_64FS;
+			priv->config[id].spc |= CS42L73_MCK_SCLK_64FS;
 		else
-			priv->config[id].spc |= MCK_SCLK_MCLK;
+			priv->config[id].spc |= CS42L73_MCK_SCLK_MCLK;
 	} else {
 		/* CS42L73 Slave */
 		priv->config[id].spc &= 0xFC;
-		priv->config[id].spc |= MCK_SCLK_64FS;
+		priv->config[id].spc |= CS42L73_MCK_SCLK_64FS;
 	}
 	/* Update ASRCs */
 	priv->config[id].srate = srate;
@@ -1200,8 +1200,8 @@ static int cs42l73_set_bias_level(struct snd_soc_codec *codec,
 
 	switch (level) {
 	case SND_SOC_BIAS_ON:
-		snd_soc_update_bits(codec, CS42L73_DMMCC, MCLKDIS, 0);
-		snd_soc_update_bits(codec, CS42L73_PWRCTL1, PDN, 0);
+		snd_soc_update_bits(codec, CS42L73_DMMCC, CS42L73_MCLKDIS, 0);
+		snd_soc_update_bits(codec, CS42L73_PWRCTL1, CS42L73_PDN, 0);
 		break;
 
 	case SND_SOC_BIAS_PREPARE:
@@ -1212,11 +1212,11 @@ static int cs42l73_set_bias_level(struct snd_soc_codec *codec,
 			regcache_cache_only(cs42l73->regmap, false);
 			regcache_sync(cs42l73->regmap);
 		}
-		snd_soc_update_bits(codec, CS42L73_PWRCTL1, PDN, 1);
+		snd_soc_update_bits(codec, CS42L73_PWRCTL1, CS42L73_PDN, 1);
 		break;
 
 	case SND_SOC_BIAS_OFF:
-		snd_soc_update_bits(codec, CS42L73_PWRCTL1, PDN, 1);
+		snd_soc_update_bits(codec, CS42L73_PWRCTL1, CS42L73_PDN, 1);
 		if (cs42l73->shutdwn_delay > 0) {
 			mdelay(cs42l73->shutdwn_delay);
 			cs42l73->shutdwn_delay = 0;
@@ -1225,7 +1225,7 @@ static int cs42l73_set_bias_level(struct snd_soc_codec *codec,
 				     * down.
 				     */
 		}
-		snd_soc_update_bits(codec, CS42L73_DMMCC, MCLKDIS, 1);
+		snd_soc_update_bits(codec, CS42L73_DMMCC, CS42L73_MCLKDIS, 1);
 		break;
 	}
 	codec->dapm.bias_level = level;
diff --git a/sound/soc/codecs/cs42l73.h b/sound/soc/codecs/cs42l73.h
index 4f83d39496a8..45746186a678 100644
--- a/sound/soc/codecs/cs42l73.h
+++ b/sound/soc/codecs/cs42l73.h
@@ -128,60 +128,60 @@
 /* Bitfield Definitions */
 
 /* CS42L73_PWRCTL1 */
-#define PDN_ADCB		(1 << 7)
-#define PDN_DMICB		(1 << 6)
-#define PDN_ADCA		(1 << 5)
-#define PDN_DMICA		(1 << 4)
-#define PDN_LDO			(1 << 2)
-#define DISCHG_FILT		(1 << 1)
-#define PDN			(1 << 0)
+#define CS42L73_PDN_ADCB		(1 << 7)
+#define CS42L73_PDN_DMICB		(1 << 6)
+#define CS42L73_PDN_ADCA		(1 << 5)
+#define CS42L73_PDN_DMICA		(1 << 4)
+#define CS42L73_PDN_LDO			(1 << 2)
+#define CS42L73_DISCHG_FILT		(1 << 1)
+#define CS42L73_PDN			(1 << 0)
 
 /* CS42L73_PWRCTL2 */
-#define PDN_MIC2_BIAS		(1 << 7)
-#define PDN_MIC1_BIAS		(1 << 6)
-#define PDN_VSP			(1 << 4)
-#define PDN_ASP_SDOUT		(1 << 3)
-#define PDN_ASP_SDIN		(1 << 2)
-#define PDN_XSP_SDOUT		(1 << 1)
-#define PDN_XSP_SDIN		(1 << 0)
+#define CS42L73_PDN_MIC2_BIAS		(1 << 7)
+#define CS42L73_PDN_MIC1_BIAS		(1 << 6)
+#define CS42L73_PDN_VSP			(1 << 4)
+#define CS42L73_PDN_ASP_SDOUT		(1 << 3)
+#define CS42L73_PDN_ASP_SDIN		(1 << 2)
+#define CS42L73_PDN_XSP_SDOUT		(1 << 1)
+#define CS42L73_PDN_XSP_SDIN		(1 << 0)
 
 /* CS42L73_PWRCTL3 */
-#define PDN_THMS		(1 << 5)
-#define PDN_SPKLO		(1 << 4)
-#define PDN_EAR			(1 << 3)
-#define PDN_SPK			(1 << 2)
-#define PDN_LO			(1 << 1)
-#define PDN_HP			(1 << 0)
+#define CS42L73_PDN_THMS		(1 << 5)
+#define CS42L73_PDN_SPKLO		(1 << 4)
+#define CS42L73_PDN_EAR			(1 << 3)
+#define CS42L73_PDN_SPK			(1 << 2)
+#define CS42L73_PDN_LO			(1 << 1)
+#define CS42L73_PDN_HP			(1 << 0)
 
 /* Thermal Overload Detect. Requires interrupt ... */
-#define THMOVLD_150C		0
-#define THMOVLD_132C		1
-#define THMOVLD_115C		2
-#define THMOVLD_098C		3
+#define CS42L73_THMOVLD_150C		0
+#define CS42L73_THMOVLD_132C		1
+#define CS42L73_THMOVLD_115C		2
+#define CS42L73_THMOVLD_098C		3
 
 #define CS42L73_CHARGEPUMP_MASK	(0xF0)
 
 /* CS42L73_ASPC, CS42L73_XSPC, CS42L73_VSPC */
-#define	SP_3ST			(1 << 7)
-#define SPDIF_I2S		(0 << 6)
-#define SPDIF_PCM		(1 << 6)
-#define PCM_MODE0		(0 << 4)
-#define PCM_MODE1		(1 << 4)
-#define PCM_MODE2		(2 << 4)
-#define PCM_MODE_MASK		(3 << 4)
-#define PCM_BIT_ORDER		(1 << 3)
-#define MCK_SCLK_64FS		(0 << 0)
-#define MCK_SCLK_MCLK		(2 << 0)
-#define MCK_SCLK_PREMCLK	(3 << 0)
+#define	CS42L73_SP_3ST			(1 << 7)
+#define CS42L73_SPDIF_I2S		(0 << 6)
+#define CS42L73_SPDIF_PCM		(1 << 6)
+#define CS42L73_PCM_MODE0		(0 << 4)
+#define CS42L73_PCM_MODE1		(1 << 4)
+#define CS42L73_PCM_MODE2		(2 << 4)
+#define CS42L73_PCM_MODE_MASK		(3 << 4)
+#define CS42L73_PCM_BIT_ORDER		(1 << 3)
+#define CS42L73_MCK_SCLK_64FS		(0 << 0)
+#define CS42L73_MCK_SCLK_MCLK		(2 << 0)
+#define CS42L73_MCK_SCLK_PREMCLK	(3 << 0)
 
 /* CS42L73_xSPMMCC */
-#define MS_MASTER		(1 << 7)
+#define CS42L73_MS_MASTER		(1 << 7)
 
 
 /* CS42L73_DMMCC */
-#define MCLKDIS			(1 << 0)
-#define MCLKSEL_MCLK2		(1 << 4)
-#define MCLKSEL_MCLK1		(0 << 4)
+#define CS42L73_MCLKDIS			(1 << 0)
+#define CS42L73_MCLKSEL_MCLK2		(1 << 4)
+#define CS42L73_MCLKSEL_MCLK1		(0 << 4)
 
 /* CS42L73 MCLK derived from MCLK1 or MCLK2 */
 #define CS42L73_CLKID_MCLK1     0
@@ -195,28 +195,26 @@
 #define CS42L73_VSP		2
 
 /* IS1, IM1 */
-#define MIC2_SDET		(1 << 6)
-#define THMOVLD			(1 << 4)
-#define DIGMIXOVFL		(1 << 3)
-#define IPBOVFL			(1 << 1)
-#define IPAOVFL			(1 << 0)
+#define CS42L73_MIC2_SDET		(1 << 6)
+#define CS42L73_THMOVLD			(1 << 4)
+#define CS42L73_DIGMIXOVFL		(1 << 3)
+#define CS42L73_IPBOVFL			(1 << 1)
+#define CS42L73_IPAOVFL			(1 << 0)
 
 /* Analog Softramp */
-#define ANLGOSFT		(1 << 0)
+#define CS42L73_ANLGOSFT		(1 << 0)
 
 /* HP A/B Analog Mute */
-#define HPA_MUTE		(1 << 7)
+#define CS42L73_HPA_MUTE		(1 << 7)
 /* LO A/B Analog Mute	*/
-#define LOA_MUTE		(1 << 7)
+#define CS42L73_LOA_MUTE		(1 << 7)
 /* Digital Mute */
-#define HLAD_MUTE		(1 << 0)
-#define HLBD_MUTE		(1 << 1)
-#define SPKD_MUTE		(1 << 2)
-#define ESLD_MUTE		(1 << 3)
+#define CS42L73_HLAD_MUTE		(1 << 0)
+#define CS42L73_HLBD_MUTE		(1 << 1)
+#define CS42L73_SPKD_MUTE		(1 << 2)
+#define CS42L73_ESLD_MUTE		(1 << 3)
 
 /* Misc defines for codec */
-#define CS42L73_RESET_GPIO 143
-
 #define CS42L73_DEVID		0x00042A73
 #define CS42L73_MCLKX_MIN	5644800
 #define CS42L73_MCLKX_MAX	38400000
-- 
cgit 


From 001d4c7aea587ce0865c07ec45aa56ecbefd431a Mon Sep 17 00:00:00 2001
From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Date: Thu, 17 Oct 2013 15:35:25 -0700
Subject: mrst: Fixed printk/pr_* related issues

Fixed printk and pr_* related issues in mrst related files.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: http://lkml.kernel.org/r/1382049336-21316-2-git-send-email-david.a.cohen@linux.intel.com
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/platform/mrst/early_printk_mrst.c | 2 +-
 arch/x86/platform/mrst/mrst.c              | 2 +-
 arch/x86/platform/mrst/vrtc.c              | 5 ++---
 3 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/x86/platform/mrst/early_printk_mrst.c b/arch/x86/platform/mrst/early_printk_mrst.c
index 028454f0c3a5..95880f7f34de 100644
--- a/arch/x86/platform/mrst/early_printk_mrst.c
+++ b/arch/x86/platform/mrst/early_printk_mrst.c
@@ -213,7 +213,7 @@ static void early_mrst_spi_putc(char c)
 	}
 
 	if (!timeout)
-		pr_warning("MRST earlycon: timed out\n");
+		pr_warn("MRST earlycon: timed out\n");
 	else
 		max3110_write_data(c);
 }
diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c
index 3ca5957b7a34..b9aeb5464d82 100644
--- a/arch/x86/platform/mrst/mrst.c
+++ b/arch/x86/platform/mrst/mrst.c
@@ -328,7 +328,7 @@ static inline int __init setup_x86_mrst_timer(char *arg)
 	else if (strcmp("lapic_and_apbt", arg) == 0)
 		mrst_timer_options = MRST_TIMER_LAPIC_APBT;
 	else {
-		pr_warning("X86 MRST timer option %s not recognised"
+		pr_warn("X86 MRST timer option %s not recognised"
 			   " use x86_mrst_timer=apbt_only or lapic_and_apbt\n",
 			   arg);
 		return -EINVAL;
diff --git a/arch/x86/platform/mrst/vrtc.c b/arch/x86/platform/mrst/vrtc.c
index 5e355b134ba4..ca4f7d999fd1 100644
--- a/arch/x86/platform/mrst/vrtc.c
+++ b/arch/x86/platform/mrst/vrtc.c
@@ -79,7 +79,7 @@ void vrtc_get_time(struct timespec *now)
 	/* vRTC YEAR reg contains the offset to 1972 */
 	year += 1972;
 
-	printk(KERN_INFO "vRTC: sec: %d min: %d hour: %d day: %d "
+	pr_info("vRTC: sec: %d min: %d hour: %d day: %d "
 		"mon: %d year: %d\n", sec, min, hour, mday, mon, year);
 
 	now->tv_sec = mktime(year, mon, mday, hour, min, sec);
@@ -109,8 +109,7 @@ int vrtc_set_mmss(const struct timespec *now)
 		vrtc_cmos_write(tm.tm_sec, RTC_SECONDS);
 		spin_unlock_irqrestore(&rtc_lock, flags);
 	} else {
-		printk(KERN_ERR
-		       "%s: Invalid vRTC value: write of %lx to vRTC failed\n",
+		pr_err("%s: Invalid vRTC value: write of %lx to vRTC failed\n",
 			__FUNCTION__, now->tv_sec);
 		retval = -EINVAL;
 	}
-- 
cgit 


From d8059302b374b351731ba503bb6f5bc88962d983 Mon Sep 17 00:00:00 2001
From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Date: Thu, 17 Oct 2013 15:35:26 -0700
Subject: mrst: Fixed indentation issues

Fixed indentation issues reported by checkpatch script in
mrst related files.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: http://lkml.kernel.org/r/1382049336-21316-3-git-send-email-david.a.cohen@linux.intel.com
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/platform/mrst/early_printk_mrst.c |  3 ++-
 arch/x86/platform/mrst/mrst.c              | 24 +++++++++++++-----------
 2 files changed, 15 insertions(+), 12 deletions(-)

diff --git a/arch/x86/platform/mrst/early_printk_mrst.c b/arch/x86/platform/mrst/early_printk_mrst.c
index 95880f7f34de..39ecc276cd84 100644
--- a/arch/x86/platform/mrst/early_printk_mrst.c
+++ b/arch/x86/platform/mrst/early_printk_mrst.c
@@ -219,7 +219,8 @@ static void early_mrst_spi_putc(char c)
 }
 
 /* Early SPI only uses polling mode */
-static void early_mrst_spi_write(struct console *con, const char *str, unsigned n)
+static void early_mrst_spi_write(struct console *con, const char *str,
+					unsigned n)
 {
 	int i;
 
diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c
index b9aeb5464d82..235a74244777 100644
--- a/arch/x86/platform/mrst/mrst.c
+++ b/arch/x86/platform/mrst/mrst.c
@@ -131,7 +131,7 @@ struct sfi_timer_table_entry *sfi_get_mtmr(int hint)
 	int i;
 	if (hint < sfi_mtimer_num) {
 		if (!sfi_mtimer_usage[hint]) {
-			pr_debug("hint taken for timer %d irq %d\n",\
+			pr_debug("hint taken for timer %d irq %d\n",
 				hint, sfi_mtimer_array[hint].irq);
 			sfi_mtimer_usage[hint] = 1;
 			return &sfi_mtimer_array[hint];
@@ -679,14 +679,14 @@ static void *msic_thermal_platform_data(void *info)
 /* tc35876x DSI-LVDS bridge chip and panel platform data */
 static void *tc35876x_platform_data(void *data)
 {
-       static struct tc35876x_platform_data pdata;
+	static struct tc35876x_platform_data pdata;
 
-       /* gpio pins set to -1 will not be used by the driver */
-       pdata.gpio_bridge_reset = get_gpio_by_name("LCMB_RXEN");
-       pdata.gpio_panel_bl_en = get_gpio_by_name("6S6P_BL_EN");
-       pdata.gpio_panel_vadd = get_gpio_by_name("EN_VREG_LCD_V3P3");
+	/* gpio pins set to -1 will not be used by the driver */
+	pdata.gpio_bridge_reset = get_gpio_by_name("LCMB_RXEN");
+	pdata.gpio_panel_bl_en = get_gpio_by_name("6S6P_BL_EN");
+	pdata.gpio_panel_vadd = get_gpio_by_name("EN_VREG_LCD_V3P3");
 
-       return &pdata;
+	return &pdata;
 }
 
 static const struct devs_id __initconst device_ids[] = {
@@ -729,7 +729,7 @@ static int i2c_next_dev;
 
 static void __init intel_scu_device_register(struct platform_device *pdev)
 {
-	if(ipc_next_dev == MAX_IPCDEVS)
+	if (ipc_next_dev == MAX_IPCDEVS)
 		pr_err("too many SCU IPC devices");
 	else
 		ipc_devs[ipc_next_dev++] = pdev;
@@ -872,7 +872,8 @@ static void __init sfi_handle_spi_dev(struct spi_board_info *spi_info)
 
 	while (dev->name[0]) {
 		if (dev->type == SFI_DEV_TYPE_SPI &&
-				!strncmp(dev->name, spi_info->modalias, SFI_NAME_LEN)) {
+			!strncmp(dev->name, spi_info->modalias,
+						SFI_NAME_LEN)) {
 			pdata = dev->get_platform_data(spi_info);
 			break;
 		}
@@ -904,7 +905,7 @@ static void __init sfi_handle_i2c_dev(int bus, struct i2c_board_info *i2c_info)
 		intel_scu_i2c_device_register(bus, i2c_info);
 	else
 		i2c_register_board_info(bus, i2c_info, 1);
- }
+}
 
 
 static int __init sfi_parse_devs(struct sfi_table_header *table)
@@ -1034,7 +1035,8 @@ static int __init pb_keys_init(void)
 	num = sizeof(gpio_button) / sizeof(struct gpio_keys_button);
 	for (i = 0; i < num; i++) {
 		gb[i].gpio = get_gpio_by_name(gb[i].desc);
-		pr_debug("info[%2d]: name = %s, gpio = %d\n", i, gb[i].desc, gb[i].gpio);
+		pr_debug("info[%2d]: name = %s, gpio = %d\n", i, gb[i].desc,
+					gb[i].gpio);
 		if (gb[i].gpio == -1)
 			continue;
 
-- 
cgit 


From 05454c26eb3587b56abc5eb139797ac5afb6d77a Mon Sep 17 00:00:00 2001
From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Date: Thu, 17 Oct 2013 15:35:27 -0700
Subject: intel_mid: Renamed *mrst* to *intel_mid*

Following files contains code that is common to all intel mid
soc's. So renamed them as below.

mrst/mrst.c              -> intel-mid/intel-mid.c
mrst/vrtc.c              -> intel-mid/intel_mid_vrtc.c
mrst/early_printk_mrst.c -> intel-mid/intel_mid_vrtc.c
pci/mrst.c               -> pci/intel_mid_pci.c

Also, renamed the corresponding header files and made changes
to the driver files that included these header files.

To ensure that there are no functional changes, I have compared
the objdump of renamed files before and after rename and found
that the only difference is file name change.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: http://lkml.kernel.org/r/1382049336-21316-4-git-send-email-david.a.cohen@linux.intel.com
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/include/asm/intel-mid.h                   |   81 ++
 arch/x86/include/asm/intel_mid_vrtc.h              |    9 +
 arch/x86/include/asm/mrst-vrtc.h                   |    9 -
 arch/x86/include/asm/mrst.h                        |   81 --
 arch/x86/kernel/apb_timer.c                        |    2 +-
 arch/x86/kernel/early_printk.c                     |    2 +-
 arch/x86/kernel/rtc.c                              |    2 +-
 arch/x86/pci/Makefile                              |    2 +-
 arch/x86/pci/intel_mid_pci.c                       |  310 ++++++
 arch/x86/pci/mrst.c                                |  310 ------
 arch/x86/platform/Makefile                         |    2 +-
 arch/x86/platform/intel-mid/Makefile               |    3 +
 .../platform/intel-mid/early_printk_intel_mid.c    |  325 ++++++
 arch/x86/platform/intel-mid/intel-mid.c            | 1055 ++++++++++++++++++++
 arch/x86/platform/intel-mid/intel_mid_vrtc.c       |  177 ++++
 arch/x86/platform/mrst/Makefile                    |    3 -
 arch/x86/platform/mrst/early_printk_mrst.c         |  325 ------
 arch/x86/platform/mrst/mrst.c                      | 1054 -------------------
 arch/x86/platform/mrst/vrtc.c                      |  177 ----
 drivers/gpu/drm/gma500/mdfld_dsi_output.h          |    2 +-
 drivers/gpu/drm/gma500/oaktrail_device.c           |    2 +-
 drivers/gpu/drm/gma500/oaktrail_lvds.c             |    2 +-
 drivers/platform/x86/intel_scu_ipc.c               |    2 +-
 drivers/rtc/rtc-mrst.c                             |    4 +-
 drivers/watchdog/intel_scu_watchdog.c              |    2 +-
 25 files changed, 1972 insertions(+), 1971 deletions(-)
 create mode 100644 arch/x86/include/asm/intel-mid.h
 create mode 100644 arch/x86/include/asm/intel_mid_vrtc.h
 delete mode 100644 arch/x86/include/asm/mrst-vrtc.h
 delete mode 100644 arch/x86/include/asm/mrst.h
 create mode 100644 arch/x86/pci/intel_mid_pci.c
 delete mode 100644 arch/x86/pci/mrst.c
 create mode 100644 arch/x86/platform/intel-mid/Makefile
 create mode 100644 arch/x86/platform/intel-mid/early_printk_intel_mid.c
 create mode 100644 arch/x86/platform/intel-mid/intel-mid.c
 create mode 100644 arch/x86/platform/intel-mid/intel_mid_vrtc.c
 delete mode 100644 arch/x86/platform/mrst/Makefile
 delete mode 100644 arch/x86/platform/mrst/early_printk_mrst.c
 delete mode 100644 arch/x86/platform/mrst/mrst.c
 delete mode 100644 arch/x86/platform/mrst/vrtc.c

diff --git a/arch/x86/include/asm/intel-mid.h b/arch/x86/include/asm/intel-mid.h
new file mode 100644
index 000000000000..cc79a4f7aeed
--- /dev/null
+++ b/arch/x86/include/asm/intel-mid.h
@@ -0,0 +1,81 @@
+/*
+ * intel-mid.h: Intel MID specific setup code
+ *
+ * (C) Copyright 2009 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _ASM_X86_INTEL_MID_H
+#define _ASM_X86_INTEL_MID_H
+
+#include <linux/sfi.h>
+
+extern int pci_mrst_init(void);
+extern int __init sfi_parse_mrtc(struct sfi_table_header *table);
+extern int sfi_mrtc_num;
+extern struct sfi_rtc_table_entry sfi_mrtc_array[];
+
+/*
+ * Medfield is the follow-up of Moorestown, it combines two chip solution into
+ * one. Other than that it also added always-on and constant tsc and lapic
+ * timers. Medfield is the platform name, and the chip name is called Penwell
+ * we treat Medfield/Penwell as a variant of Moorestown. Penwell can be
+ * identified via MSRs.
+ */
+enum mrst_cpu_type {
+	/* 1 was Moorestown */
+	MRST_CPU_CHIP_PENWELL = 2,
+};
+
+extern enum mrst_cpu_type __mrst_cpu_chip;
+
+#ifdef CONFIG_X86_INTEL_MID
+
+static inline enum mrst_cpu_type mrst_identify_cpu(void)
+{
+	return __mrst_cpu_chip;
+}
+
+#else /* !CONFIG_X86_INTEL_MID */
+
+#define mrst_identify_cpu()    (0)
+
+#endif /* !CONFIG_X86_INTEL_MID */
+
+enum mrst_timer_options {
+	MRST_TIMER_DEFAULT,
+	MRST_TIMER_APBT_ONLY,
+	MRST_TIMER_LAPIC_APBT,
+};
+
+extern enum mrst_timer_options mrst_timer_options;
+
+/*
+ * Penwell uses spread spectrum clock, so the freq number is not exactly
+ * the same as reported by MSR based on SDM.
+ */
+#define PENWELL_FSB_FREQ_83SKU         83200
+#define PENWELL_FSB_FREQ_100SKU        99840
+
+#define SFI_MTMR_MAX_NUM 8
+#define SFI_MRTC_MAX	8
+
+extern struct console early_mrst_console;
+extern void mrst_early_console_init(void);
+
+extern struct console early_hsu_console;
+extern void hsu_early_console_init(const char *);
+
+extern void intel_scu_devices_create(void);
+extern void intel_scu_devices_destroy(void);
+
+/* VRTC timer */
+#define MRST_VRTC_MAP_SZ	(1024)
+/*#define MRST_VRTC_PGOFFSET	(0xc00) */
+
+extern void mrst_rtc_init(void);
+
+#endif /* _ASM_X86_INTEL_MID_H */
diff --git a/arch/x86/include/asm/intel_mid_vrtc.h b/arch/x86/include/asm/intel_mid_vrtc.h
new file mode 100644
index 000000000000..86ff4685c409
--- /dev/null
+++ b/arch/x86/include/asm/intel_mid_vrtc.h
@@ -0,0 +1,9 @@
+#ifndef _INTEL_MID_VRTC_H
+#define _INTEL_MID_VRTC_H
+
+extern unsigned char vrtc_cmos_read(unsigned char reg);
+extern void vrtc_cmos_write(unsigned char val, unsigned char reg);
+extern void vrtc_get_time(struct timespec *now);
+extern int vrtc_set_mmss(const struct timespec *now);
+
+#endif
diff --git a/arch/x86/include/asm/mrst-vrtc.h b/arch/x86/include/asm/mrst-vrtc.h
deleted file mode 100644
index 1e69a75412a4..000000000000
--- a/arch/x86/include/asm/mrst-vrtc.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef _MRST_VRTC_H
-#define _MRST_VRTC_H
-
-extern unsigned char vrtc_cmos_read(unsigned char reg);
-extern void vrtc_cmos_write(unsigned char val, unsigned char reg);
-extern void vrtc_get_time(struct timespec *now);
-extern int vrtc_set_mmss(const struct timespec *now);
-
-#endif
diff --git a/arch/x86/include/asm/mrst.h b/arch/x86/include/asm/mrst.h
deleted file mode 100644
index fc18bf3ce7c8..000000000000
--- a/arch/x86/include/asm/mrst.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * mrst.h: Intel Moorestown platform specific setup code
- *
- * (C) Copyright 2009 Intel Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; version 2
- * of the License.
- */
-#ifndef _ASM_X86_MRST_H
-#define _ASM_X86_MRST_H
-
-#include <linux/sfi.h>
-
-extern int pci_mrst_init(void);
-extern int __init sfi_parse_mrtc(struct sfi_table_header *table);
-extern int sfi_mrtc_num;
-extern struct sfi_rtc_table_entry sfi_mrtc_array[];
-
-/*
- * Medfield is the follow-up of Moorestown, it combines two chip solution into
- * one. Other than that it also added always-on and constant tsc and lapic
- * timers. Medfield is the platform name, and the chip name is called Penwell
- * we treat Medfield/Penwell as a variant of Moorestown. Penwell can be
- * identified via MSRs.
- */
-enum mrst_cpu_type {
-	/* 1 was Moorestown */
-	MRST_CPU_CHIP_PENWELL = 2,
-};
-
-extern enum mrst_cpu_type __mrst_cpu_chip;
-
-#ifdef CONFIG_X86_INTEL_MID
-
-static inline enum mrst_cpu_type mrst_identify_cpu(void)
-{
-	return __mrst_cpu_chip;
-}
-
-#else /* !CONFIG_X86_INTEL_MID */
-
-#define mrst_identify_cpu()    (0)
-
-#endif /* !CONFIG_X86_INTEL_MID */
-
-enum mrst_timer_options {
-	MRST_TIMER_DEFAULT,
-	MRST_TIMER_APBT_ONLY,
-	MRST_TIMER_LAPIC_APBT,
-};
-
-extern enum mrst_timer_options mrst_timer_options;
-
-/*
- * Penwell uses spread spectrum clock, so the freq number is not exactly
- * the same as reported by MSR based on SDM.
- */
-#define PENWELL_FSB_FREQ_83SKU         83200
-#define PENWELL_FSB_FREQ_100SKU        99840
-
-#define SFI_MTMR_MAX_NUM 8
-#define SFI_MRTC_MAX	8
-
-extern struct console early_mrst_console;
-extern void mrst_early_console_init(void);
-
-extern struct console early_hsu_console;
-extern void hsu_early_console_init(const char *);
-
-extern void intel_scu_devices_create(void);
-extern void intel_scu_devices_destroy(void);
-
-/* VRTC timer */
-#define MRST_VRTC_MAP_SZ	(1024)
-/*#define MRST_VRTC_PGOFFSET	(0xc00) */
-
-extern void mrst_rtc_init(void);
-
-#endif /* _ASM_X86_MRST_H */
diff --git a/arch/x86/kernel/apb_timer.c b/arch/x86/kernel/apb_timer.c
index c9876efecafb..915483604c0c 100644
--- a/arch/x86/kernel/apb_timer.c
+++ b/arch/x86/kernel/apb_timer.c
@@ -40,7 +40,7 @@
 
 #include <asm/fixmap.h>
 #include <asm/apb_timer.h>
-#include <asm/mrst.h>
+#include <asm/intel-mid.h>
 #include <asm/time.h>
 
 #define APBT_CLOCKEVENT_RATING		110
diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
index d15f575a861b..38ca398fb787 100644
--- a/arch/x86/kernel/early_printk.c
+++ b/arch/x86/kernel/early_printk.c
@@ -14,7 +14,7 @@
 #include <xen/hvc-console.h>
 #include <asm/pci-direct.h>
 #include <asm/fixmap.h>
-#include <asm/mrst.h>
+#include <asm/intel-mid.h>
 #include <asm/pgtable.h>
 #include <linux/usb/ehci_def.h>
 
diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
index 0aa29394ed6f..a1b52fe77995 100644
--- a/arch/x86/kernel/rtc.c
+++ b/arch/x86/kernel/rtc.c
@@ -12,7 +12,7 @@
 #include <asm/vsyscall.h>
 #include <asm/x86_init.h>
 #include <asm/time.h>
-#include <asm/mrst.h>
+#include <asm/intel-mid.h>
 #include <asm/rtc.h>
 
 #ifdef CONFIG_X86_32
diff --git a/arch/x86/pci/Makefile b/arch/x86/pci/Makefile
index ee0af58ca5bd..e063eed0f912 100644
--- a/arch/x86/pci/Makefile
+++ b/arch/x86/pci/Makefile
@@ -18,7 +18,7 @@ obj-$(CONFIG_X86_VISWS)		+= visws.o
 obj-$(CONFIG_X86_NUMAQ)		+= numaq_32.o
 obj-$(CONFIG_X86_NUMACHIP)	+= numachip.o
 
-obj-$(CONFIG_X86_INTEL_MID)	+= mrst.o
+obj-$(CONFIG_X86_INTEL_MID)	+= intel_mid_pci.o
 
 obj-y				+= common.o early.o
 obj-y				+= bus_numa.o
diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c
new file mode 100644
index 000000000000..f8715f7c43c7
--- /dev/null
+++ b/arch/x86/pci/intel_mid_pci.c
@@ -0,0 +1,310 @@
+/*
+ * Intel MID PCI support
+ *   Copyright (c) 2008 Intel Corporation
+ *     Jesse Barnes <jesse.barnes@intel.com>
+ *
+ * Moorestown has an interesting PCI implementation:
+ *   - configuration space is memory mapped (as defined by MCFG)
+ *   - Lincroft devices also have a real, type 1 configuration space
+ *   - Early Lincroft silicon has a type 1 access bug that will cause
+ *     a hang if non-existent devices are accessed
+ *   - some devices have the "fixed BAR" capability, which means
+ *     they can't be relocated or modified; check for that during
+ *     BAR sizing
+ *
+ * So, we use the MCFG space for all reads and writes, but also send
+ * Lincroft writes to type 1 space.  But only read/write if the device
+ * actually exists, otherwise return all 1s for reads and bit bucket
+ * the writes.
+ */
+
+#include <linux/sched.h>
+#include <linux/pci.h>
+#include <linux/ioport.h>
+#include <linux/init.h>
+#include <linux/dmi.h>
+#include <linux/acpi.h>
+#include <linux/io.h>
+#include <linux/smp.h>
+
+#include <asm/segment.h>
+#include <asm/pci_x86.h>
+#include <asm/hw_irq.h>
+#include <asm/io_apic.h>
+
+#define PCIE_CAP_OFFSET	0x100
+
+/* Fixed BAR fields */
+#define PCIE_VNDR_CAP_ID_FIXED_BAR 0x00	/* Fixed BAR (TBD) */
+#define PCI_FIXED_BAR_0_SIZE	0x04
+#define PCI_FIXED_BAR_1_SIZE	0x08
+#define PCI_FIXED_BAR_2_SIZE	0x0c
+#define PCI_FIXED_BAR_3_SIZE	0x10
+#define PCI_FIXED_BAR_4_SIZE	0x14
+#define PCI_FIXED_BAR_5_SIZE	0x1c
+
+static int pci_soc_mode;
+
+/**
+ * fixed_bar_cap - return the offset of the fixed BAR cap if found
+ * @bus: PCI bus
+ * @devfn: device in question
+ *
+ * Look for the fixed BAR cap on @bus and @devfn, returning its offset
+ * if found or 0 otherwise.
+ */
+static int fixed_bar_cap(struct pci_bus *bus, unsigned int devfn)
+{
+	int pos;
+	u32 pcie_cap = 0, cap_data;
+
+	pos = PCIE_CAP_OFFSET;
+
+	if (!raw_pci_ext_ops)
+		return 0;
+
+	while (pos) {
+		if (raw_pci_ext_ops->read(pci_domain_nr(bus), bus->number,
+					  devfn, pos, 4, &pcie_cap))
+			return 0;
+
+		if (PCI_EXT_CAP_ID(pcie_cap) == 0x0000 ||
+			PCI_EXT_CAP_ID(pcie_cap) == 0xffff)
+			break;
+
+		if (PCI_EXT_CAP_ID(pcie_cap) == PCI_EXT_CAP_ID_VNDR) {
+			raw_pci_ext_ops->read(pci_domain_nr(bus), bus->number,
+					      devfn, pos + 4, 4, &cap_data);
+			if ((cap_data & 0xffff) == PCIE_VNDR_CAP_ID_FIXED_BAR)
+				return pos;
+		}
+
+		pos = PCI_EXT_CAP_NEXT(pcie_cap);
+	}
+
+	return 0;
+}
+
+static int pci_device_update_fixed(struct pci_bus *bus, unsigned int devfn,
+				   int reg, int len, u32 val, int offset)
+{
+	u32 size;
+	unsigned int domain, busnum;
+	int bar = (reg - PCI_BASE_ADDRESS_0) >> 2;
+
+	domain = pci_domain_nr(bus);
+	busnum = bus->number;
+
+	if (val == ~0 && len == 4) {
+		unsigned long decode;
+
+		raw_pci_ext_ops->read(domain, busnum, devfn,
+			       offset + 8 + (bar * 4), 4, &size);
+
+		/* Turn the size into a decode pattern for the sizing code */
+		if (size) {
+			decode = size - 1;
+			decode |= decode >> 1;
+			decode |= decode >> 2;
+			decode |= decode >> 4;
+			decode |= decode >> 8;
+			decode |= decode >> 16;
+			decode++;
+			decode = ~(decode - 1);
+		} else {
+			decode = 0;
+		}
+
+		/*
+		 * If val is all ones, the core code is trying to size the reg,
+		 * so update the mmconfig space with the real size.
+		 *
+		 * Note: this assumes the fixed size we got is a power of two.
+		 */
+		return raw_pci_ext_ops->write(domain, busnum, devfn, reg, 4,
+				       decode);
+	}
+
+	/* This is some other kind of BAR write, so just do it. */
+	return raw_pci_ext_ops->write(domain, busnum, devfn, reg, len, val);
+}
+
+/**
+ * type1_access_ok - check whether to use type 1
+ * @bus: bus number
+ * @devfn: device & function in question
+ *
+ * If the bus is on a Lincroft chip and it exists, or is not on a Lincroft at
+ * all, the we can go ahead with any reads & writes.  If it's on a Lincroft,
+ * but doesn't exist, avoid the access altogether to keep the chip from
+ * hanging.
+ */
+static bool type1_access_ok(unsigned int bus, unsigned int devfn, int reg)
+{
+	/*
+	 * This is a workaround for A0 LNC bug where PCI status register does
+	 * not have new CAP bit set. can not be written by SW either.
+	 *
+	 * PCI header type in real LNC indicates a single function device, this
+	 * will prevent probing other devices under the same function in PCI
+	 * shim. Therefore, use the header type in shim instead.
+	 */
+	if (reg >= 0x100 || reg == PCI_STATUS || reg == PCI_HEADER_TYPE)
+		return 0;
+	if (bus == 0 && (devfn == PCI_DEVFN(2, 0)
+				|| devfn == PCI_DEVFN(0, 0)
+				|| devfn == PCI_DEVFN(3, 0)))
+		return 1;
+	return 0; /* Langwell on others */
+}
+
+static int pci_read(struct pci_bus *bus, unsigned int devfn, int where,
+		    int size, u32 *value)
+{
+	if (type1_access_ok(bus->number, devfn, where))
+		return pci_direct_conf1.read(pci_domain_nr(bus), bus->number,
+					devfn, where, size, value);
+	return raw_pci_ext_ops->read(pci_domain_nr(bus), bus->number,
+			      devfn, where, size, value);
+}
+
+static int pci_write(struct pci_bus *bus, unsigned int devfn, int where,
+		     int size, u32 value)
+{
+	int offset;
+
+	/*
+	 * On MRST, there is no PCI ROM BAR, this will cause a subsequent read
+	 * to ROM BAR return 0 then being ignored.
+	 */
+	if (where == PCI_ROM_ADDRESS)
+		return 0;
+
+	/*
+	 * Devices with fixed BARs need special handling:
+	 *   - BAR sizing code will save, write ~0, read size, restore
+	 *   - so writes to fixed BARs need special handling
+	 *   - other writes to fixed BAR devices should go through mmconfig
+	 */
+	offset = fixed_bar_cap(bus, devfn);
+	if (offset &&
+	    (where >= PCI_BASE_ADDRESS_0 && where <= PCI_BASE_ADDRESS_5)) {
+		return pci_device_update_fixed(bus, devfn, where, size, value,
+					       offset);
+	}
+
+	/*
+	 * On Moorestown update both real & mmconfig space
+	 * Note: early Lincroft silicon can't handle type 1 accesses to
+	 *       non-existent devices, so just eat the write in that case.
+	 */
+	if (type1_access_ok(bus->number, devfn, where))
+		return pci_direct_conf1.write(pci_domain_nr(bus), bus->number,
+					      devfn, where, size, value);
+	return raw_pci_ext_ops->write(pci_domain_nr(bus), bus->number, devfn,
+			       where, size, value);
+}
+
+static int mrst_pci_irq_enable(struct pci_dev *dev)
+{
+	u8 pin;
+	struct io_apic_irq_attr irq_attr;
+
+	pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
+
+	/*
+	 * MRST only have IOAPIC, the PCI irq lines are 1:1 mapped to
+	 * IOAPIC RTE entries, so we just enable RTE for the device.
+	 */
+	irq_attr.ioapic = mp_find_ioapic(dev->irq);
+	irq_attr.ioapic_pin = dev->irq;
+	irq_attr.trigger = 1; /* level */
+	irq_attr.polarity = 1; /* active low */
+	io_apic_set_pci_routing(&dev->dev, dev->irq, &irq_attr);
+
+	return 0;
+}
+
+struct pci_ops pci_mrst_ops = {
+	.read = pci_read,
+	.write = pci_write,
+};
+
+/**
+ * pci_mrst_init - installs pci_mrst_ops
+ *
+ * Moorestown has an interesting PCI implementation (see above).
+ * Called when the early platform detection installs it.
+ */
+int __init pci_mrst_init(void)
+{
+	pr_info("Intel MID platform detected, using MID PCI ops\n");
+	pci_mmcfg_late_init();
+	pcibios_enable_irq = mrst_pci_irq_enable;
+	pci_root_ops = pci_mrst_ops;
+	pci_soc_mode = 1;
+	/* Continue with standard init */
+	return 1;
+}
+
+/*
+ * Langwell devices are not true PCI devices; they are not subject to 10 ms
+ * d3 to d0 delay required by PCI spec.
+ */
+static void pci_d3delay_fixup(struct pci_dev *dev)
+{
+	/*
+	 * PCI fixups are effectively decided compile time. If we have a dual
+	 * SoC/non-SoC kernel we don't want to mangle d3 on non-SoC devices.
+	 */
+	if (!pci_soc_mode)
+		return;
+	/*
+	 * True PCI devices in Lincroft should allow type 1 access, the rest
+	 * are Langwell fake PCI devices.
+	 */
+	if (type1_access_ok(dev->bus->number, dev->devfn, PCI_DEVICE_ID))
+		return;
+	dev->d3_delay = 0;
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_d3delay_fixup);
+
+static void mrst_power_off_unused_dev(struct pci_dev *dev)
+{
+	pci_set_power_state(dev, PCI_D3hot);
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0801, mrst_power_off_unused_dev);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0809, mrst_power_off_unused_dev);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x080C, mrst_power_off_unused_dev);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0812, mrst_power_off_unused_dev);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0815, mrst_power_off_unused_dev);
+
+/*
+ * Langwell devices reside at fixed offsets, don't try to move them.
+ */
+static void pci_fixed_bar_fixup(struct pci_dev *dev)
+{
+	unsigned long offset;
+	u32 size;
+	int i;
+
+	if (!pci_soc_mode)
+		return;
+
+	/* Must have extended configuration space */
+	if (dev->cfg_size < PCIE_CAP_OFFSET + 4)
+		return;
+
+	/* Fixup the BAR sizes for fixed BAR devices and make them unmoveable */
+	offset = fixed_bar_cap(dev->bus, dev->devfn);
+	if (!offset || PCI_DEVFN(2, 0) == dev->devfn ||
+	    PCI_DEVFN(2, 2) == dev->devfn)
+		return;
+
+	for (i = 0; i < PCI_ROM_RESOURCE; i++) {
+		pci_read_config_dword(dev, offset + 8 + (i * 4), &size);
+		dev->resource[i].end = dev->resource[i].start + size - 1;
+		dev->resource[i].flags |= IORESOURCE_PCI_FIXED;
+	}
+}
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_fixed_bar_fixup);
diff --git a/arch/x86/pci/mrst.c b/arch/x86/pci/mrst.c
deleted file mode 100644
index 903fded50786..000000000000
--- a/arch/x86/pci/mrst.c
+++ /dev/null
@@ -1,310 +0,0 @@
-/*
- * Moorestown PCI support
- *   Copyright (c) 2008 Intel Corporation
- *     Jesse Barnes <jesse.barnes@intel.com>
- *
- * Moorestown has an interesting PCI implementation:
- *   - configuration space is memory mapped (as defined by MCFG)
- *   - Lincroft devices also have a real, type 1 configuration space
- *   - Early Lincroft silicon has a type 1 access bug that will cause
- *     a hang if non-existent devices are accessed
- *   - some devices have the "fixed BAR" capability, which means
- *     they can't be relocated or modified; check for that during
- *     BAR sizing
- *
- * So, we use the MCFG space for all reads and writes, but also send
- * Lincroft writes to type 1 space.  But only read/write if the device
- * actually exists, otherwise return all 1s for reads and bit bucket
- * the writes.
- */
-
-#include <linux/sched.h>
-#include <linux/pci.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <linux/dmi.h>
-#include <linux/acpi.h>
-#include <linux/io.h>
-#include <linux/smp.h>
-
-#include <asm/segment.h>
-#include <asm/pci_x86.h>
-#include <asm/hw_irq.h>
-#include <asm/io_apic.h>
-
-#define PCIE_CAP_OFFSET	0x100
-
-/* Fixed BAR fields */
-#define PCIE_VNDR_CAP_ID_FIXED_BAR 0x00	/* Fixed BAR (TBD) */
-#define PCI_FIXED_BAR_0_SIZE	0x04
-#define PCI_FIXED_BAR_1_SIZE	0x08
-#define PCI_FIXED_BAR_2_SIZE	0x0c
-#define PCI_FIXED_BAR_3_SIZE	0x10
-#define PCI_FIXED_BAR_4_SIZE	0x14
-#define PCI_FIXED_BAR_5_SIZE	0x1c
-
-static int pci_soc_mode;
-
-/**
- * fixed_bar_cap - return the offset of the fixed BAR cap if found
- * @bus: PCI bus
- * @devfn: device in question
- *
- * Look for the fixed BAR cap on @bus and @devfn, returning its offset
- * if found or 0 otherwise.
- */
-static int fixed_bar_cap(struct pci_bus *bus, unsigned int devfn)
-{
-	int pos;
-	u32 pcie_cap = 0, cap_data;
-
-	pos = PCIE_CAP_OFFSET;
-
-	if (!raw_pci_ext_ops)
-		return 0;
-
-	while (pos) {
-		if (raw_pci_ext_ops->read(pci_domain_nr(bus), bus->number,
-					  devfn, pos, 4, &pcie_cap))
-			return 0;
-
-		if (PCI_EXT_CAP_ID(pcie_cap) == 0x0000 ||
-			PCI_EXT_CAP_ID(pcie_cap) == 0xffff)
-			break;
-
-		if (PCI_EXT_CAP_ID(pcie_cap) == PCI_EXT_CAP_ID_VNDR) {
-			raw_pci_ext_ops->read(pci_domain_nr(bus), bus->number,
-					      devfn, pos + 4, 4, &cap_data);
-			if ((cap_data & 0xffff) == PCIE_VNDR_CAP_ID_FIXED_BAR)
-				return pos;
-		}
-
-		pos = PCI_EXT_CAP_NEXT(pcie_cap);
-	}
-
-	return 0;
-}
-
-static int pci_device_update_fixed(struct pci_bus *bus, unsigned int devfn,
-				   int reg, int len, u32 val, int offset)
-{
-	u32 size;
-	unsigned int domain, busnum;
-	int bar = (reg - PCI_BASE_ADDRESS_0) >> 2;
-
-	domain = pci_domain_nr(bus);
-	busnum = bus->number;
-
-	if (val == ~0 && len == 4) {
-		unsigned long decode;
-
-		raw_pci_ext_ops->read(domain, busnum, devfn,
-			       offset + 8 + (bar * 4), 4, &size);
-
-		/* Turn the size into a decode pattern for the sizing code */
-		if (size) {
-			decode = size - 1;
-			decode |= decode >> 1;
-			decode |= decode >> 2;
-			decode |= decode >> 4;
-			decode |= decode >> 8;
-			decode |= decode >> 16;
-			decode++;
-			decode = ~(decode - 1);
-		} else {
-			decode = 0;
-		}
-
-		/*
-		 * If val is all ones, the core code is trying to size the reg,
-		 * so update the mmconfig space with the real size.
-		 *
-		 * Note: this assumes the fixed size we got is a power of two.
-		 */
-		return raw_pci_ext_ops->write(domain, busnum, devfn, reg, 4,
-				       decode);
-	}
-
-	/* This is some other kind of BAR write, so just do it. */
-	return raw_pci_ext_ops->write(domain, busnum, devfn, reg, len, val);
-}
-
-/**
- * type1_access_ok - check whether to use type 1
- * @bus: bus number
- * @devfn: device & function in question
- *
- * If the bus is on a Lincroft chip and it exists, or is not on a Lincroft at
- * all, the we can go ahead with any reads & writes.  If it's on a Lincroft,
- * but doesn't exist, avoid the access altogether to keep the chip from
- * hanging.
- */
-static bool type1_access_ok(unsigned int bus, unsigned int devfn, int reg)
-{
-	/*
-	 * This is a workaround for A0 LNC bug where PCI status register does
-	 * not have new CAP bit set. can not be written by SW either.
-	 *
-	 * PCI header type in real LNC indicates a single function device, this
-	 * will prevent probing other devices under the same function in PCI
-	 * shim. Therefore, use the header type in shim instead.
-	 */
-	if (reg >= 0x100 || reg == PCI_STATUS || reg == PCI_HEADER_TYPE)
-		return 0;
-	if (bus == 0 && (devfn == PCI_DEVFN(2, 0)
-				|| devfn == PCI_DEVFN(0, 0)
-				|| devfn == PCI_DEVFN(3, 0)))
-		return 1;
-	return 0; /* Langwell on others */
-}
-
-static int pci_read(struct pci_bus *bus, unsigned int devfn, int where,
-		    int size, u32 *value)
-{
-	if (type1_access_ok(bus->number, devfn, where))
-		return pci_direct_conf1.read(pci_domain_nr(bus), bus->number,
-					devfn, where, size, value);
-	return raw_pci_ext_ops->read(pci_domain_nr(bus), bus->number,
-			      devfn, where, size, value);
-}
-
-static int pci_write(struct pci_bus *bus, unsigned int devfn, int where,
-		     int size, u32 value)
-{
-	int offset;
-
-	/*
-	 * On MRST, there is no PCI ROM BAR, this will cause a subsequent read
-	 * to ROM BAR return 0 then being ignored.
-	 */
-	if (where == PCI_ROM_ADDRESS)
-		return 0;
-
-	/*
-	 * Devices with fixed BARs need special handling:
-	 *   - BAR sizing code will save, write ~0, read size, restore
-	 *   - so writes to fixed BARs need special handling
-	 *   - other writes to fixed BAR devices should go through mmconfig
-	 */
-	offset = fixed_bar_cap(bus, devfn);
-	if (offset &&
-	    (where >= PCI_BASE_ADDRESS_0 && where <= PCI_BASE_ADDRESS_5)) {
-		return pci_device_update_fixed(bus, devfn, where, size, value,
-					       offset);
-	}
-
-	/*
-	 * On Moorestown update both real & mmconfig space
-	 * Note: early Lincroft silicon can't handle type 1 accesses to
-	 *       non-existent devices, so just eat the write in that case.
-	 */
-	if (type1_access_ok(bus->number, devfn, where))
-		return pci_direct_conf1.write(pci_domain_nr(bus), bus->number,
-					      devfn, where, size, value);
-	return raw_pci_ext_ops->write(pci_domain_nr(bus), bus->number, devfn,
-			       where, size, value);
-}
-
-static int mrst_pci_irq_enable(struct pci_dev *dev)
-{
-	u8 pin;
-	struct io_apic_irq_attr irq_attr;
-
-	pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin);
-
-	/*
-	 * MRST only have IOAPIC, the PCI irq lines are 1:1 mapped to
-	 * IOAPIC RTE entries, so we just enable RTE for the device.
-	 */
-	irq_attr.ioapic = mp_find_ioapic(dev->irq);
-	irq_attr.ioapic_pin = dev->irq;
-	irq_attr.trigger = 1; /* level */
-	irq_attr.polarity = 1; /* active low */
-	io_apic_set_pci_routing(&dev->dev, dev->irq, &irq_attr);
-
-	return 0;
-}
-
-struct pci_ops pci_mrst_ops = {
-	.read = pci_read,
-	.write = pci_write,
-};
-
-/**
- * pci_mrst_init - installs pci_mrst_ops
- *
- * Moorestown has an interesting PCI implementation (see above).
- * Called when the early platform detection installs it.
- */
-int __init pci_mrst_init(void)
-{
-	pr_info("Intel MID platform detected, using MID PCI ops\n");
-	pci_mmcfg_late_init();
-	pcibios_enable_irq = mrst_pci_irq_enable;
-	pci_root_ops = pci_mrst_ops;
-	pci_soc_mode = 1;
-	/* Continue with standard init */
-	return 1;
-}
-
-/*
- * Langwell devices are not true PCI devices; they are not subject to 10 ms
- * d3 to d0 delay required by PCI spec.
- */
-static void pci_d3delay_fixup(struct pci_dev *dev)
-{
-	/*
-	 * PCI fixups are effectively decided compile time. If we have a dual
-	 * SoC/non-SoC kernel we don't want to mangle d3 on non-SoC devices.
-	 */
-	if (!pci_soc_mode)
-		return;
-	/*
-	 * True PCI devices in Lincroft should allow type 1 access, the rest
-	 * are Langwell fake PCI devices.
-	 */
-	if (type1_access_ok(dev->bus->number, dev->devfn, PCI_DEVICE_ID))
-		return;
-	dev->d3_delay = 0;
-}
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_d3delay_fixup);
-
-static void mrst_power_off_unused_dev(struct pci_dev *dev)
-{
-	pci_set_power_state(dev, PCI_D3hot);
-}
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0801, mrst_power_off_unused_dev);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0809, mrst_power_off_unused_dev);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x080C, mrst_power_off_unused_dev);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0812, mrst_power_off_unused_dev);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 0x0815, mrst_power_off_unused_dev);
-
-/*
- * Langwell devices reside at fixed offsets, don't try to move them.
- */
-static void pci_fixed_bar_fixup(struct pci_dev *dev)
-{
-	unsigned long offset;
-	u32 size;
-	int i;
-
-	if (!pci_soc_mode)
-		return;
-
-	/* Must have extended configuration space */
-	if (dev->cfg_size < PCIE_CAP_OFFSET + 4)
-		return;
-
-	/* Fixup the BAR sizes for fixed BAR devices and make them unmoveable */
-	offset = fixed_bar_cap(dev->bus, dev->devfn);
-	if (!offset || PCI_DEVFN(2, 0) == dev->devfn ||
-	    PCI_DEVFN(2, 2) == dev->devfn)
-		return;
-
-	for (i = 0; i < PCI_ROM_RESOURCE; i++) {
-		pci_read_config_dword(dev, offset + 8 + (i * 4), &size);
-		dev->resource[i].end = dev->resource[i].start + size - 1;
-		dev->resource[i].flags |= IORESOURCE_PCI_FIXED;
-	}
-}
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, PCI_ANY_ID, pci_fixed_bar_fixup);
diff --git a/arch/x86/platform/Makefile b/arch/x86/platform/Makefile
index 01e0231a113e..20342d4c82ce 100644
--- a/arch/x86/platform/Makefile
+++ b/arch/x86/platform/Makefile
@@ -4,7 +4,7 @@ obj-y	+= efi/
 obj-y	+= geode/
 obj-y	+= goldfish/
 obj-y	+= iris/
-obj-y	+= mrst/
+obj-y	+= intel-mid/
 obj-y	+= olpc/
 obj-y	+= scx200/
 obj-y	+= sfi/
diff --git a/arch/x86/platform/intel-mid/Makefile b/arch/x86/platform/intel-mid/Makefile
new file mode 100644
index 000000000000..de296358111e
--- /dev/null
+++ b/arch/x86/platform/intel-mid/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_X86_INTEL_MID) += intel-mid.o
+obj-$(CONFIG_X86_INTEL_MID)	+= intel_mid_vrtc.o
+obj-$(CONFIG_EARLY_PRINTK_INTEL_MID)	+= early_printk_intel_mid.o
diff --git a/arch/x86/platform/intel-mid/early_printk_intel_mid.c b/arch/x86/platform/intel-mid/early_printk_intel_mid.c
new file mode 100644
index 000000000000..7c56e706fbee
--- /dev/null
+++ b/arch/x86/platform/intel-mid/early_printk_intel_mid.c
@@ -0,0 +1,325 @@
+/*
+ * early_printk_intel_mid.c - early consoles for Intel MID platforms
+ *
+ * Copyright (c) 2008-2010, Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+/*
+ * This file implements two early consoles named mrst and hsu.
+ * mrst is based on Maxim3110 spi-uart device, it exists in both
+ * Moorestown and Medfield platforms, while hsu is based on a High
+ * Speed UART device which only exists in the Medfield platform
+ */
+
+#include <linux/serial_reg.h>
+#include <linux/serial_mfd.h>
+#include <linux/kmsg_dump.h>
+#include <linux/console.h>
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/io.h>
+
+#include <asm/fixmap.h>
+#include <asm/pgtable.h>
+#include <asm/intel-mid.h>
+
+#define MRST_SPI_TIMEOUT		0x200000
+#define MRST_REGBASE_SPI0		0xff128000
+#define MRST_REGBASE_SPI1		0xff128400
+#define MRST_CLK_SPI0_REG		0xff11d86c
+
+/* Bit fields in CTRLR0 */
+#define SPI_DFS_OFFSET			0
+
+#define SPI_FRF_OFFSET			4
+#define SPI_FRF_SPI			0x0
+#define SPI_FRF_SSP			0x1
+#define SPI_FRF_MICROWIRE		0x2
+#define SPI_FRF_RESV			0x3
+
+#define SPI_MODE_OFFSET			6
+#define SPI_SCPH_OFFSET			6
+#define SPI_SCOL_OFFSET			7
+#define SPI_TMOD_OFFSET			8
+#define	SPI_TMOD_TR			0x0		/* xmit & recv */
+#define SPI_TMOD_TO			0x1		/* xmit only */
+#define SPI_TMOD_RO			0x2		/* recv only */
+#define SPI_TMOD_EPROMREAD		0x3		/* eeprom read mode */
+
+#define SPI_SLVOE_OFFSET		10
+#define SPI_SRL_OFFSET			11
+#define SPI_CFS_OFFSET			12
+
+/* Bit fields in SR, 7 bits */
+#define SR_MASK				0x7f		/* cover 7 bits */
+#define SR_BUSY				(1 << 0)
+#define SR_TF_NOT_FULL			(1 << 1)
+#define SR_TF_EMPT			(1 << 2)
+#define SR_RF_NOT_EMPT			(1 << 3)
+#define SR_RF_FULL			(1 << 4)
+#define SR_TX_ERR			(1 << 5)
+#define SR_DCOL				(1 << 6)
+
+struct dw_spi_reg {
+	u32	ctrl0;
+	u32	ctrl1;
+	u32	ssienr;
+	u32	mwcr;
+	u32	ser;
+	u32	baudr;
+	u32	txfltr;
+	u32	rxfltr;
+	u32	txflr;
+	u32	rxflr;
+	u32	sr;
+	u32	imr;
+	u32	isr;
+	u32	risr;
+	u32	txoicr;
+	u32	rxoicr;
+	u32	rxuicr;
+	u32	msticr;
+	u32	icr;
+	u32	dmacr;
+	u32	dmatdlr;
+	u32	dmardlr;
+	u32	idr;
+	u32	version;
+
+	/* Currently operates as 32 bits, though only the low 16 bits matter */
+	u32	dr;
+} __packed;
+
+#define dw_readl(dw, name)		__raw_readl(&(dw)->name)
+#define dw_writel(dw, name, val)	__raw_writel((val), &(dw)->name)
+
+/* Default use SPI0 register for mrst, we will detect Penwell and use SPI1 */
+static unsigned long mrst_spi_paddr = MRST_REGBASE_SPI0;
+
+static u32 *pclk_spi0;
+/* Always contains an accessible address, start with 0 */
+static struct dw_spi_reg *pspi;
+
+static struct kmsg_dumper dw_dumper;
+static int dumper_registered;
+
+static void dw_kmsg_dump(struct kmsg_dumper *dumper,
+			 enum kmsg_dump_reason reason)
+{
+	static char line[1024];
+	size_t len;
+
+	/* When run to this, we'd better re-init the HW */
+	mrst_early_console_init();
+
+	while (kmsg_dump_get_line(dumper, true, line, sizeof(line), &len))
+		early_mrst_console.write(&early_mrst_console, line, len);
+}
+
+/* Set the ratio rate to 115200, 8n1, IRQ disabled */
+static void max3110_write_config(void)
+{
+	u16 config;
+
+	config = 0xc001;
+	dw_writel(pspi, dr, config);
+}
+
+/* Translate char to a eligible word and send to max3110 */
+static void max3110_write_data(char c)
+{
+	u16 data;
+
+	data = 0x8000 | c;
+	dw_writel(pspi, dr, data);
+}
+
+void mrst_early_console_init(void)
+{
+	u32 ctrlr0 = 0;
+	u32 spi0_cdiv;
+	u32 freq; /* Freqency info only need be searched once */
+
+	/* Base clk is 100 MHz, the actual clk = 100M / (clk_divider + 1) */
+	pclk_spi0 = (void *)set_fixmap_offset_nocache(FIX_EARLYCON_MEM_BASE,
+							MRST_CLK_SPI0_REG);
+	spi0_cdiv = ((*pclk_spi0) & 0xe00) >> 9;
+	freq = 100000000 / (spi0_cdiv + 1);
+
+	if (mrst_identify_cpu() == MRST_CPU_CHIP_PENWELL)
+		mrst_spi_paddr = MRST_REGBASE_SPI1;
+
+	pspi = (void *)set_fixmap_offset_nocache(FIX_EARLYCON_MEM_BASE,
+						mrst_spi_paddr);
+
+	/* Disable SPI controller */
+	dw_writel(pspi, ssienr, 0);
+
+	/* Set control param, 8 bits, transmit only mode */
+	ctrlr0 = dw_readl(pspi, ctrl0);
+
+	ctrlr0 &= 0xfcc0;
+	ctrlr0 |= 0xf | (SPI_FRF_SPI << SPI_FRF_OFFSET)
+		      | (SPI_TMOD_TO << SPI_TMOD_OFFSET);
+	dw_writel(pspi, ctrl0, ctrlr0);
+
+	/*
+	 * Change the spi0 clk to comply with 115200 bps, use 100000 to
+	 * calculate the clk dividor to make the clock a little slower
+	 * than real baud rate.
+	 */
+	dw_writel(pspi, baudr, freq/100000);
+
+	/* Disable all INT for early phase */
+	dw_writel(pspi, imr, 0x0);
+
+	/* Set the cs to spi-uart */
+	dw_writel(pspi, ser, 0x2);
+
+	/* Enable the HW, the last step for HW init */
+	dw_writel(pspi, ssienr, 0x1);
+
+	/* Set the default configuration */
+	max3110_write_config();
+
+	/* Register the kmsg dumper */
+	if (!dumper_registered) {
+		dw_dumper.dump = dw_kmsg_dump;
+		kmsg_dump_register(&dw_dumper);
+		dumper_registered = 1;
+	}
+}
+
+/* Slave select should be called in the read/write function */
+static void early_mrst_spi_putc(char c)
+{
+	unsigned int timeout;
+	u32 sr;
+
+	timeout = MRST_SPI_TIMEOUT;
+	/* Early putc needs to make sure the TX FIFO is not full */
+	while (--timeout) {
+		sr = dw_readl(pspi, sr);
+		if (!(sr & SR_TF_NOT_FULL))
+			cpu_relax();
+		else
+			break;
+	}
+
+	if (!timeout)
+		pr_warn("MRST earlycon: timed out\n");
+	else
+		max3110_write_data(c);
+}
+
+/* Early SPI only uses polling mode */
+static void early_mrst_spi_write(struct console *con, const char *str,
+					unsigned n)
+{
+	int i;
+
+	for (i = 0; i < n && *str; i++) {
+		if (*str == '\n')
+			early_mrst_spi_putc('\r');
+		early_mrst_spi_putc(*str);
+		str++;
+	}
+}
+
+struct console early_mrst_console = {
+	.name =		"earlymrst",
+	.write =	early_mrst_spi_write,
+	.flags =	CON_PRINTBUFFER,
+	.index =	-1,
+};
+
+/*
+ * Following is the early console based on Medfield HSU (High
+ * Speed UART) device.
+ */
+#define HSU_PORT_BASE		0xffa28080
+
+static void __iomem *phsu;
+
+void hsu_early_console_init(const char *s)
+{
+	unsigned long paddr, port = 0;
+	u8 lcr;
+
+	/*
+	 * Select the early HSU console port if specified by user in the
+	 * kernel command line.
+	 */
+	if (*s && !kstrtoul(s, 10, &port))
+		port = clamp_val(port, 0, 2);
+
+	paddr = HSU_PORT_BASE + port * 0x80;
+	phsu = (void *)set_fixmap_offset_nocache(FIX_EARLYCON_MEM_BASE, paddr);
+
+	/* Disable FIFO */
+	writeb(0x0, phsu + UART_FCR);
+
+	/* Set to default 115200 bps, 8n1 */
+	lcr = readb(phsu + UART_LCR);
+	writeb((0x80 | lcr), phsu + UART_LCR);
+	writeb(0x18, phsu + UART_DLL);
+	writeb(lcr,  phsu + UART_LCR);
+	writel(0x3600, phsu + UART_MUL*4);
+
+	writeb(0x8, phsu + UART_MCR);
+	writeb(0x7, phsu + UART_FCR);
+	writeb(0x3, phsu + UART_LCR);
+
+	/* Clear IRQ status */
+	readb(phsu + UART_LSR);
+	readb(phsu + UART_RX);
+	readb(phsu + UART_IIR);
+	readb(phsu + UART_MSR);
+
+	/* Enable FIFO */
+	writeb(0x7, phsu + UART_FCR);
+}
+
+#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
+
+static void early_hsu_putc(char ch)
+{
+	unsigned int timeout = 10000; /* 10ms */
+	u8 status;
+
+	while (--timeout) {
+		status = readb(phsu + UART_LSR);
+		if (status & BOTH_EMPTY)
+			break;
+		udelay(1);
+	}
+
+	/* Only write the char when there was no timeout */
+	if (timeout)
+		writeb(ch, phsu + UART_TX);
+}
+
+static void early_hsu_write(struct console *con, const char *str, unsigned n)
+{
+	int i;
+
+	for (i = 0; i < n && *str; i++) {
+		if (*str == '\n')
+			early_hsu_putc('\r');
+		early_hsu_putc(*str);
+		str++;
+	}
+}
+
+struct console early_hsu_console = {
+	.name =		"earlyhsu",
+	.write =	early_hsu_write,
+	.flags =	CON_PRINTBUFFER,
+	.index =	-1,
+};
diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
new file mode 100644
index 000000000000..7e6d7b204a05
--- /dev/null
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -0,0 +1,1055 @@
+/*
+ * intel-mid.c: Intel MID platform setup code
+ *
+ * (C) Copyright 2008, 2012 Intel Corporation
+ * Author: Jacob Pan (jacob.jun.pan@intel.com)
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#define pr_fmt(fmt) "mrst: " fmt
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/scatterlist.h>
+#include <linux/sfi.h>
+#include <linux/intel_pmic_gpio.h>
+#include <linux/spi/spi.h>
+#include <linux/i2c.h>
+#include <linux/platform_data/pca953x.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/notifier.h>
+#include <linux/mfd/intel_msic.h>
+#include <linux/gpio.h>
+#include <linux/i2c/tc35876x.h>
+
+#include <asm/setup.h>
+#include <asm/mpspec_def.h>
+#include <asm/hw_irq.h>
+#include <asm/apic.h>
+#include <asm/io_apic.h>
+#include <asm/intel-mid.h>
+#include <asm/intel_mid_vrtc.h>
+#include <asm/io.h>
+#include <asm/i8259.h>
+#include <asm/intel_scu_ipc.h>
+#include <asm/apb_timer.h>
+#include <asm/reboot.h>
+
+/*
+ * the clockevent devices on Moorestown/Medfield can be APBT or LAPIC clock,
+ * cmdline option x86_mrst_timer can be used to override the configuration
+ * to prefer one or the other.
+ * at runtime, there are basically three timer configurations:
+ * 1. per cpu apbt clock only
+ * 2. per cpu always-on lapic clocks only, this is Penwell/Medfield only
+ * 3. per cpu lapic clock (C3STOP) and one apbt clock, with broadcast.
+ *
+ * by default (without cmdline option), platform code first detects cpu type
+ * to see if we are on lincroft or penwell, then set up both lapic or apbt
+ * clocks accordingly.
+ * i.e. by default, medfield uses configuration #2, moorestown uses #1.
+ * config #3 is supported but not recommended on medfield.
+ *
+ * rating and feature summary:
+ * lapic (with C3STOP) --------- 100
+ * apbt (always-on) ------------ 110
+ * lapic (always-on,ARAT) ------ 150
+ */
+
+enum mrst_timer_options mrst_timer_options;
+
+static u32 sfi_mtimer_usage[SFI_MTMR_MAX_NUM];
+static struct sfi_timer_table_entry sfi_mtimer_array[SFI_MTMR_MAX_NUM];
+enum mrst_cpu_type __mrst_cpu_chip;
+EXPORT_SYMBOL_GPL(__mrst_cpu_chip);
+
+int sfi_mtimer_num;
+
+struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX];
+EXPORT_SYMBOL_GPL(sfi_mrtc_array);
+int sfi_mrtc_num;
+
+static void mrst_power_off(void)
+{
+}
+
+static void mrst_reboot(void)
+{
+	intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
+}
+
+/* parse all the mtimer info to a static mtimer array */
+static int __init sfi_parse_mtmr(struct sfi_table_header *table)
+{
+	struct sfi_table_simple *sb;
+	struct sfi_timer_table_entry *pentry;
+	struct mpc_intsrc mp_irq;
+	int totallen;
+
+	sb = (struct sfi_table_simple *)table;
+	if (!sfi_mtimer_num) {
+		sfi_mtimer_num = SFI_GET_NUM_ENTRIES(sb,
+					struct sfi_timer_table_entry);
+		pentry = (struct sfi_timer_table_entry *) sb->pentry;
+		totallen = sfi_mtimer_num * sizeof(*pentry);
+		memcpy(sfi_mtimer_array, pentry, totallen);
+	}
+
+	pr_debug("SFI MTIMER info (num = %d):\n", sfi_mtimer_num);
+	pentry = sfi_mtimer_array;
+	for (totallen = 0; totallen < sfi_mtimer_num; totallen++, pentry++) {
+		pr_debug("timer[%d]: paddr = 0x%08x, freq = %dHz,"
+			" irq = %d\n", totallen, (u32)pentry->phys_addr,
+			pentry->freq_hz, pentry->irq);
+			if (!pentry->irq)
+				continue;
+			mp_irq.type = MP_INTSRC;
+			mp_irq.irqtype = mp_INT;
+/* triggering mode edge bit 2-3, active high polarity bit 0-1 */
+			mp_irq.irqflag = 5;
+			mp_irq.srcbus = MP_BUS_ISA;
+			mp_irq.srcbusirq = pentry->irq;	/* IRQ */
+			mp_irq.dstapic = MP_APIC_ALL;
+			mp_irq.dstirq = pentry->irq;
+			mp_save_irq(&mp_irq);
+	}
+
+	return 0;
+}
+
+struct sfi_timer_table_entry *sfi_get_mtmr(int hint)
+{
+	int i;
+	if (hint < sfi_mtimer_num) {
+		if (!sfi_mtimer_usage[hint]) {
+			pr_debug("hint taken for timer %d irq %d\n",
+				hint, sfi_mtimer_array[hint].irq);
+			sfi_mtimer_usage[hint] = 1;
+			return &sfi_mtimer_array[hint];
+		}
+	}
+	/* take the first timer available */
+	for (i = 0; i < sfi_mtimer_num;) {
+		if (!sfi_mtimer_usage[i]) {
+			sfi_mtimer_usage[i] = 1;
+			return &sfi_mtimer_array[i];
+		}
+		i++;
+	}
+	return NULL;
+}
+
+void sfi_free_mtmr(struct sfi_timer_table_entry *mtmr)
+{
+	int i;
+	for (i = 0; i < sfi_mtimer_num;) {
+		if (mtmr->irq == sfi_mtimer_array[i].irq) {
+			sfi_mtimer_usage[i] = 0;
+			return;
+		}
+		i++;
+	}
+}
+
+/* parse all the mrtc info to a global mrtc array */
+int __init sfi_parse_mrtc(struct sfi_table_header *table)
+{
+	struct sfi_table_simple *sb;
+	struct sfi_rtc_table_entry *pentry;
+	struct mpc_intsrc mp_irq;
+
+	int totallen;
+
+	sb = (struct sfi_table_simple *)table;
+	if (!sfi_mrtc_num) {
+		sfi_mrtc_num = SFI_GET_NUM_ENTRIES(sb,
+						struct sfi_rtc_table_entry);
+		pentry = (struct sfi_rtc_table_entry *)sb->pentry;
+		totallen = sfi_mrtc_num * sizeof(*pentry);
+		memcpy(sfi_mrtc_array, pentry, totallen);
+	}
+
+	pr_debug("SFI RTC info (num = %d):\n", sfi_mrtc_num);
+	pentry = sfi_mrtc_array;
+	for (totallen = 0; totallen < sfi_mrtc_num; totallen++, pentry++) {
+		pr_debug("RTC[%d]: paddr = 0x%08x, irq = %d\n",
+			totallen, (u32)pentry->phys_addr, pentry->irq);
+		mp_irq.type = MP_INTSRC;
+		mp_irq.irqtype = mp_INT;
+		mp_irq.irqflag = 0xf;	/* level trigger and active low */
+		mp_irq.srcbus = MP_BUS_ISA;
+		mp_irq.srcbusirq = pentry->irq;	/* IRQ */
+		mp_irq.dstapic = MP_APIC_ALL;
+		mp_irq.dstirq = pentry->irq;
+		mp_save_irq(&mp_irq);
+	}
+	return 0;
+}
+
+static unsigned long __init mrst_calibrate_tsc(void)
+{
+	unsigned long fast_calibrate;
+	u32 lo, hi, ratio, fsb;
+
+	rdmsr(MSR_IA32_PERF_STATUS, lo, hi);
+	pr_debug("IA32 perf status is 0x%x, 0x%0x\n", lo, hi);
+	ratio = (hi >> 8) & 0x1f;
+	pr_debug("ratio is %d\n", ratio);
+	if (!ratio) {
+		pr_err("read a zero ratio, should be incorrect!\n");
+		pr_err("force tsc ratio to 16 ...\n");
+		ratio = 16;
+	}
+	rdmsr(MSR_FSB_FREQ, lo, hi);
+	if ((lo & 0x7) == 0x7)
+		fsb = PENWELL_FSB_FREQ_83SKU;
+	else
+		fsb = PENWELL_FSB_FREQ_100SKU;
+	fast_calibrate = ratio * fsb;
+	pr_debug("read penwell tsc %lu khz\n", fast_calibrate);
+	lapic_timer_frequency = fsb * 1000 / HZ;
+	/* mark tsc clocksource as reliable */
+	set_cpu_cap(&boot_cpu_data, X86_FEATURE_TSC_RELIABLE);
+
+	if (fast_calibrate)
+		return fast_calibrate;
+
+	return 0;
+}
+
+static void __init mrst_time_init(void)
+{
+	sfi_table_parse(SFI_SIG_MTMR, NULL, NULL, sfi_parse_mtmr);
+	switch (mrst_timer_options) {
+	case MRST_TIMER_APBT_ONLY:
+		break;
+	case MRST_TIMER_LAPIC_APBT:
+		x86_init.timers.setup_percpu_clockev = setup_boot_APIC_clock;
+		x86_cpuinit.setup_percpu_clockev = setup_secondary_APIC_clock;
+		break;
+	default:
+		if (!boot_cpu_has(X86_FEATURE_ARAT))
+			break;
+		x86_init.timers.setup_percpu_clockev = setup_boot_APIC_clock;
+		x86_cpuinit.setup_percpu_clockev = setup_secondary_APIC_clock;
+		return;
+	}
+	/* we need at least one APB timer */
+	pre_init_apic_IRQ0();
+	apbt_time_init();
+}
+
+static void mrst_arch_setup(void)
+{
+	if (boot_cpu_data.x86 == 6 && boot_cpu_data.x86_model == 0x27)
+		__mrst_cpu_chip = MRST_CPU_CHIP_PENWELL;
+	else {
+		pr_err("Unknown Intel MID CPU (%d:%d), default to Penwell\n",
+			boot_cpu_data.x86, boot_cpu_data.x86_model);
+		__mrst_cpu_chip = MRST_CPU_CHIP_PENWELL;
+	}
+}
+
+/* MID systems don't have i8042 controller */
+static int mrst_i8042_detect(void)
+{
+	return 0;
+}
+
+/*
+ * Moorestown does not have external NMI source nor port 0x61 to report
+ * NMI status. The possible NMI sources are from pmu as a result of NMI
+ * watchdog or lock debug. Reading io port 0x61 results in 0xff which
+ * misled NMI handler.
+ */
+static unsigned char mrst_get_nmi_reason(void)
+{
+	return 0;
+}
+
+/*
+ * Moorestown specific x86_init function overrides and early setup
+ * calls.
+ */
+void __init x86_mrst_early_setup(void)
+{
+	x86_init.resources.probe_roms = x86_init_noop;
+	x86_init.resources.reserve_resources = x86_init_noop;
+
+	x86_init.timers.timer_init = mrst_time_init;
+	x86_init.timers.setup_percpu_clockev = x86_init_noop;
+
+	x86_init.irqs.pre_vector_init = x86_init_noop;
+
+	x86_init.oem.arch_setup = mrst_arch_setup;
+
+	x86_cpuinit.setup_percpu_clockev = apbt_setup_secondary_clock;
+
+	x86_platform.calibrate_tsc = mrst_calibrate_tsc;
+	x86_platform.i8042_detect = mrst_i8042_detect;
+	x86_init.timers.wallclock_init = mrst_rtc_init;
+	x86_platform.get_nmi_reason = mrst_get_nmi_reason;
+
+	x86_init.pci.init = pci_mrst_init;
+	x86_init.pci.fixup_irqs = x86_init_noop;
+
+	legacy_pic = &null_legacy_pic;
+
+	/* Moorestown specific power_off/restart method */
+	pm_power_off = mrst_power_off;
+	machine_ops.emergency_restart  = mrst_reboot;
+
+	/* Avoid searching for BIOS MP tables */
+	x86_init.mpparse.find_smp_config = x86_init_noop;
+	x86_init.mpparse.get_smp_config = x86_init_uint_noop;
+	set_bit(MP_BUS_ISA, mp_bus_not_pci);
+}
+
+/*
+ * if user does not want to use per CPU apb timer, just give it a lower rating
+ * than local apic timer and skip the late per cpu timer init.
+ */
+static inline int __init setup_x86_mrst_timer(char *arg)
+{
+	if (!arg)
+		return -EINVAL;
+
+	if (strcmp("apbt_only", arg) == 0)
+		mrst_timer_options = MRST_TIMER_APBT_ONLY;
+	else if (strcmp("lapic_and_apbt", arg) == 0)
+		mrst_timer_options = MRST_TIMER_LAPIC_APBT;
+	else {
+		pr_warn("X86 MRST timer option %s not recognised"
+			   " use x86_mrst_timer=apbt_only or lapic_and_apbt\n",
+			   arg);
+		return -EINVAL;
+	}
+	return 0;
+}
+__setup("x86_mrst_timer=", setup_x86_mrst_timer);
+
+/*
+ * Parsing GPIO table first, since the DEVS table will need this table
+ * to map the pin name to the actual pin.
+ */
+static struct sfi_gpio_table_entry *gpio_table;
+static int gpio_num_entry;
+
+static int __init sfi_parse_gpio(struct sfi_table_header *table)
+{
+	struct sfi_table_simple *sb;
+	struct sfi_gpio_table_entry *pentry;
+	int num, i;
+
+	if (gpio_table)
+		return 0;
+	sb = (struct sfi_table_simple *)table;
+	num = SFI_GET_NUM_ENTRIES(sb, struct sfi_gpio_table_entry);
+	pentry = (struct sfi_gpio_table_entry *)sb->pentry;
+
+	gpio_table = kmalloc(num * sizeof(*pentry), GFP_KERNEL);
+	if (!gpio_table)
+		return -1;
+	memcpy(gpio_table, pentry, num * sizeof(*pentry));
+	gpio_num_entry = num;
+
+	pr_debug("GPIO pin info:\n");
+	for (i = 0; i < num; i++, pentry++)
+		pr_debug("info[%2d]: controller = %16.16s, pin_name = %16.16s,"
+		" pin = %d\n", i,
+			pentry->controller_name,
+			pentry->pin_name,
+			pentry->pin_no);
+	return 0;
+}
+
+static int get_gpio_by_name(const char *name)
+{
+	struct sfi_gpio_table_entry *pentry = gpio_table;
+	int i;
+
+	if (!pentry)
+		return -1;
+	for (i = 0; i < gpio_num_entry; i++, pentry++) {
+		if (!strncmp(name, pentry->pin_name, SFI_NAME_LEN))
+			return pentry->pin_no;
+	}
+	return -1;
+}
+
+/*
+ * Here defines the array of devices platform data that IAFW would export
+ * through SFI "DEVS" table, we use name and type to match the device and
+ * its platform data.
+ */
+struct devs_id {
+	char name[SFI_NAME_LEN + 1];
+	u8 type;
+	u8 delay;
+	void *(*get_platform_data)(void *info);
+};
+
+/* the offset for the mapping of global gpio pin to irq */
+#define MRST_IRQ_OFFSET 0x100
+
+static void __init *pmic_gpio_platform_data(void *info)
+{
+	static struct intel_pmic_gpio_platform_data pmic_gpio_pdata;
+	int gpio_base = get_gpio_by_name("pmic_gpio_base");
+
+	if (gpio_base == -1)
+		gpio_base = 64;
+	pmic_gpio_pdata.gpio_base = gpio_base;
+	pmic_gpio_pdata.irq_base = gpio_base + MRST_IRQ_OFFSET;
+	pmic_gpio_pdata.gpiointr = 0xffffeff8;
+
+	return &pmic_gpio_pdata;
+}
+
+static void __init *max3111_platform_data(void *info)
+{
+	struct spi_board_info *spi_info = info;
+	int intr = get_gpio_by_name("max3111_int");
+
+	spi_info->mode = SPI_MODE_0;
+	if (intr == -1)
+		return NULL;
+	spi_info->irq = intr + MRST_IRQ_OFFSET;
+	return NULL;
+}
+
+/* we have multiple max7315 on the board ... */
+#define MAX7315_NUM 2
+static void __init *max7315_platform_data(void *info)
+{
+	static struct pca953x_platform_data max7315_pdata[MAX7315_NUM];
+	static int nr;
+	struct pca953x_platform_data *max7315 = &max7315_pdata[nr];
+	struct i2c_board_info *i2c_info = info;
+	int gpio_base, intr;
+	char base_pin_name[SFI_NAME_LEN + 1];
+	char intr_pin_name[SFI_NAME_LEN + 1];
+
+	if (nr == MAX7315_NUM) {
+		pr_err("too many max7315s, we only support %d\n",
+				MAX7315_NUM);
+		return NULL;
+	}
+	/* we have several max7315 on the board, we only need load several
+	 * instances of the same pca953x driver to cover them
+	 */
+	strcpy(i2c_info->type, "max7315");
+	if (nr++) {
+		sprintf(base_pin_name, "max7315_%d_base", nr);
+		sprintf(intr_pin_name, "max7315_%d_int", nr);
+	} else {
+		strcpy(base_pin_name, "max7315_base");
+		strcpy(intr_pin_name, "max7315_int");
+	}
+
+	gpio_base = get_gpio_by_name(base_pin_name);
+	intr = get_gpio_by_name(intr_pin_name);
+
+	if (gpio_base == -1)
+		return NULL;
+	max7315->gpio_base = gpio_base;
+	if (intr != -1) {
+		i2c_info->irq = intr + MRST_IRQ_OFFSET;
+		max7315->irq_base = gpio_base + MRST_IRQ_OFFSET;
+	} else {
+		i2c_info->irq = -1;
+		max7315->irq_base = -1;
+	}
+	return max7315;
+}
+
+static void *tca6416_platform_data(void *info)
+{
+	static struct pca953x_platform_data tca6416;
+	struct i2c_board_info *i2c_info = info;
+	int gpio_base, intr;
+	char base_pin_name[SFI_NAME_LEN + 1];
+	char intr_pin_name[SFI_NAME_LEN + 1];
+
+	strcpy(i2c_info->type, "tca6416");
+	strcpy(base_pin_name, "tca6416_base");
+	strcpy(intr_pin_name, "tca6416_int");
+
+	gpio_base = get_gpio_by_name(base_pin_name);
+	intr = get_gpio_by_name(intr_pin_name);
+
+	if (gpio_base == -1)
+		return NULL;
+	tca6416.gpio_base = gpio_base;
+	if (intr != -1) {
+		i2c_info->irq = intr + MRST_IRQ_OFFSET;
+		tca6416.irq_base = gpio_base + MRST_IRQ_OFFSET;
+	} else {
+		i2c_info->irq = -1;
+		tca6416.irq_base = -1;
+	}
+	return &tca6416;
+}
+
+static void *mpu3050_platform_data(void *info)
+{
+	struct i2c_board_info *i2c_info = info;
+	int intr = get_gpio_by_name("mpu3050_int");
+
+	if (intr == -1)
+		return NULL;
+
+	i2c_info->irq = intr + MRST_IRQ_OFFSET;
+	return NULL;
+}
+
+static void __init *emc1403_platform_data(void *info)
+{
+	static short intr2nd_pdata;
+	struct i2c_board_info *i2c_info = info;
+	int intr = get_gpio_by_name("thermal_int");
+	int intr2nd = get_gpio_by_name("thermal_alert");
+
+	if (intr == -1 || intr2nd == -1)
+		return NULL;
+
+	i2c_info->irq = intr + MRST_IRQ_OFFSET;
+	intr2nd_pdata = intr2nd + MRST_IRQ_OFFSET;
+
+	return &intr2nd_pdata;
+}
+
+static void __init *lis331dl_platform_data(void *info)
+{
+	static short intr2nd_pdata;
+	struct i2c_board_info *i2c_info = info;
+	int intr = get_gpio_by_name("accel_int");
+	int intr2nd = get_gpio_by_name("accel_2");
+
+	if (intr == -1 || intr2nd == -1)
+		return NULL;
+
+	i2c_info->irq = intr + MRST_IRQ_OFFSET;
+	intr2nd_pdata = intr2nd + MRST_IRQ_OFFSET;
+
+	return &intr2nd_pdata;
+}
+
+static void __init *no_platform_data(void *info)
+{
+	return NULL;
+}
+
+static struct resource msic_resources[] = {
+	{
+		.start	= INTEL_MSIC_IRQ_PHYS_BASE,
+		.end	= INTEL_MSIC_IRQ_PHYS_BASE + 64 - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct intel_msic_platform_data msic_pdata;
+
+static struct platform_device msic_device = {
+	.name		= "intel_msic",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= &msic_pdata,
+	},
+	.num_resources	= ARRAY_SIZE(msic_resources),
+	.resource	= msic_resources,
+};
+
+static inline bool mrst_has_msic(void)
+{
+	return mrst_identify_cpu() == MRST_CPU_CHIP_PENWELL;
+}
+
+static int msic_scu_status_change(struct notifier_block *nb,
+				  unsigned long code, void *data)
+{
+	if (code == SCU_DOWN) {
+		platform_device_unregister(&msic_device);
+		return 0;
+	}
+
+	return platform_device_register(&msic_device);
+}
+
+static int __init msic_init(void)
+{
+	static struct notifier_block msic_scu_notifier = {
+		.notifier_call	= msic_scu_status_change,
+	};
+
+	/*
+	 * We need to be sure that the SCU IPC is ready before MSIC device
+	 * can be registered.
+	 */
+	if (mrst_has_msic())
+		intel_scu_notifier_add(&msic_scu_notifier);
+
+	return 0;
+}
+arch_initcall(msic_init);
+
+/*
+ * msic_generic_platform_data - sets generic platform data for the block
+ * @info: pointer to the SFI device table entry for this block
+ * @block: MSIC block
+ *
+ * Function sets IRQ number from the SFI table entry for given device to
+ * the MSIC platform data.
+ */
+static void *msic_generic_platform_data(void *info, enum intel_msic_block block)
+{
+	struct sfi_device_table_entry *entry = info;
+
+	BUG_ON(block < 0 || block >= INTEL_MSIC_BLOCK_LAST);
+	msic_pdata.irq[block] = entry->irq;
+
+	return no_platform_data(info);
+}
+
+static void *msic_battery_platform_data(void *info)
+{
+	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_BATTERY);
+}
+
+static void *msic_gpio_platform_data(void *info)
+{
+	static struct intel_msic_gpio_pdata pdata;
+	int gpio = get_gpio_by_name("msic_gpio_base");
+
+	if (gpio < 0)
+		return NULL;
+
+	pdata.gpio_base = gpio;
+	msic_pdata.gpio = &pdata;
+
+	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_GPIO);
+}
+
+static void *msic_audio_platform_data(void *info)
+{
+	struct platform_device *pdev;
+
+	pdev = platform_device_register_simple("sst-platform", -1, NULL, 0);
+	if (IS_ERR(pdev)) {
+		pr_err("failed to create audio platform device\n");
+		return NULL;
+	}
+
+	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_AUDIO);
+}
+
+static void *msic_power_btn_platform_data(void *info)
+{
+	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_POWER_BTN);
+}
+
+static void *msic_ocd_platform_data(void *info)
+{
+	static struct intel_msic_ocd_pdata pdata;
+	int gpio = get_gpio_by_name("ocd_gpio");
+
+	if (gpio < 0)
+		return NULL;
+
+	pdata.gpio = gpio;
+	msic_pdata.ocd = &pdata;
+
+	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_OCD);
+}
+
+static void *msic_thermal_platform_data(void *info)
+{
+	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_THERMAL);
+}
+
+/* tc35876x DSI-LVDS bridge chip and panel platform data */
+static void *tc35876x_platform_data(void *data)
+{
+	static struct tc35876x_platform_data pdata;
+
+	/* gpio pins set to -1 will not be used by the driver */
+	pdata.gpio_bridge_reset = get_gpio_by_name("LCMB_RXEN");
+	pdata.gpio_panel_bl_en = get_gpio_by_name("6S6P_BL_EN");
+	pdata.gpio_panel_vadd = get_gpio_by_name("EN_VREG_LCD_V3P3");
+
+	return &pdata;
+}
+
+static const struct devs_id __initconst device_ids[] = {
+	{"bma023", SFI_DEV_TYPE_I2C, 1, &no_platform_data},
+	{"pmic_gpio", SFI_DEV_TYPE_SPI, 1, &pmic_gpio_platform_data},
+	{"pmic_gpio", SFI_DEV_TYPE_IPC, 1, &pmic_gpio_platform_data},
+	{"spi_max3111", SFI_DEV_TYPE_SPI, 0, &max3111_platform_data},
+	{"i2c_max7315", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data},
+	{"i2c_max7315_2", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data},
+	{"tca6416", SFI_DEV_TYPE_I2C, 1, &tca6416_platform_data},
+	{"emc1403", SFI_DEV_TYPE_I2C, 1, &emc1403_platform_data},
+	{"i2c_accel", SFI_DEV_TYPE_I2C, 0, &lis331dl_platform_data},
+	{"pmic_audio", SFI_DEV_TYPE_IPC, 1, &no_platform_data},
+	{"mpu3050", SFI_DEV_TYPE_I2C, 1, &mpu3050_platform_data},
+	{"i2c_disp_brig", SFI_DEV_TYPE_I2C, 0, &tc35876x_platform_data},
+
+	/* MSIC subdevices */
+	{"msic_battery", SFI_DEV_TYPE_IPC, 1, &msic_battery_platform_data},
+	{"msic_gpio", SFI_DEV_TYPE_IPC, 1, &msic_gpio_platform_data},
+	{"msic_audio", SFI_DEV_TYPE_IPC, 1, &msic_audio_platform_data},
+	{"msic_power_btn", SFI_DEV_TYPE_IPC, 1, &msic_power_btn_platform_data},
+	{"msic_ocd", SFI_DEV_TYPE_IPC, 1, &msic_ocd_platform_data},
+	{"msic_thermal", SFI_DEV_TYPE_IPC, 1, &msic_thermal_platform_data},
+
+	{},
+};
+
+#define MAX_IPCDEVS	24
+static struct platform_device *ipc_devs[MAX_IPCDEVS];
+static int ipc_next_dev;
+
+#define MAX_SCU_SPI	24
+static struct spi_board_info *spi_devs[MAX_SCU_SPI];
+static int spi_next_dev;
+
+#define MAX_SCU_I2C	24
+static struct i2c_board_info *i2c_devs[MAX_SCU_I2C];
+static int i2c_bus[MAX_SCU_I2C];
+static int i2c_next_dev;
+
+static void __init intel_scu_device_register(struct platform_device *pdev)
+{
+	if (ipc_next_dev == MAX_IPCDEVS)
+		pr_err("too many SCU IPC devices");
+	else
+		ipc_devs[ipc_next_dev++] = pdev;
+}
+
+static void __init intel_scu_spi_device_register(struct spi_board_info *sdev)
+{
+	struct spi_board_info *new_dev;
+
+	if (spi_next_dev == MAX_SCU_SPI) {
+		pr_err("too many SCU SPI devices");
+		return;
+	}
+
+	new_dev = kzalloc(sizeof(*sdev), GFP_KERNEL);
+	if (!new_dev) {
+		pr_err("failed to alloc mem for delayed spi dev %s\n",
+			sdev->modalias);
+		return;
+	}
+	memcpy(new_dev, sdev, sizeof(*sdev));
+
+	spi_devs[spi_next_dev++] = new_dev;
+}
+
+static void __init intel_scu_i2c_device_register(int bus,
+						struct i2c_board_info *idev)
+{
+	struct i2c_board_info *new_dev;
+
+	if (i2c_next_dev == MAX_SCU_I2C) {
+		pr_err("too many SCU I2C devices");
+		return;
+	}
+
+	new_dev = kzalloc(sizeof(*idev), GFP_KERNEL);
+	if (!new_dev) {
+		pr_err("failed to alloc mem for delayed i2c dev %s\n",
+			idev->type);
+		return;
+	}
+	memcpy(new_dev, idev, sizeof(*idev));
+
+	i2c_bus[i2c_next_dev] = bus;
+	i2c_devs[i2c_next_dev++] = new_dev;
+}
+
+BLOCKING_NOTIFIER_HEAD(intel_scu_notifier);
+EXPORT_SYMBOL_GPL(intel_scu_notifier);
+
+/* Called by IPC driver */
+void intel_scu_devices_create(void)
+{
+	int i;
+
+	for (i = 0; i < ipc_next_dev; i++)
+		platform_device_add(ipc_devs[i]);
+
+	for (i = 0; i < spi_next_dev; i++)
+		spi_register_board_info(spi_devs[i], 1);
+
+	for (i = 0; i < i2c_next_dev; i++) {
+		struct i2c_adapter *adapter;
+		struct i2c_client *client;
+
+		adapter = i2c_get_adapter(i2c_bus[i]);
+		if (adapter) {
+			client = i2c_new_device(adapter, i2c_devs[i]);
+			if (!client)
+				pr_err("can't create i2c device %s\n",
+					i2c_devs[i]->type);
+		} else
+			i2c_register_board_info(i2c_bus[i], i2c_devs[i], 1);
+	}
+	intel_scu_notifier_post(SCU_AVAILABLE, NULL);
+}
+EXPORT_SYMBOL_GPL(intel_scu_devices_create);
+
+/* Called by IPC driver */
+void intel_scu_devices_destroy(void)
+{
+	int i;
+
+	intel_scu_notifier_post(SCU_DOWN, NULL);
+
+	for (i = 0; i < ipc_next_dev; i++)
+		platform_device_del(ipc_devs[i]);
+}
+EXPORT_SYMBOL_GPL(intel_scu_devices_destroy);
+
+static void __init install_irq_resource(struct platform_device *pdev, int irq)
+{
+	/* Single threaded */
+	static struct resource __initdata res = {
+		.name = "IRQ",
+		.flags = IORESOURCE_IRQ,
+	};
+	res.start = irq;
+	platform_device_add_resources(pdev, &res, 1);
+}
+
+static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *entry)
+{
+	const struct devs_id *dev = device_ids;
+	struct platform_device *pdev;
+	void *pdata = NULL;
+
+	while (dev->name[0]) {
+		if (dev->type == SFI_DEV_TYPE_IPC &&
+			!strncmp(dev->name, entry->name, SFI_NAME_LEN)) {
+			pdata = dev->get_platform_data(entry);
+			break;
+		}
+		dev++;
+	}
+
+	/*
+	 * On Medfield the platform device creation is handled by the MSIC
+	 * MFD driver so we don't need to do it here.
+	 */
+	if (mrst_has_msic())
+		return;
+
+	pdev = platform_device_alloc(entry->name, 0);
+	if (pdev == NULL) {
+		pr_err("out of memory for SFI platform device '%s'.\n",
+			entry->name);
+		return;
+	}
+	install_irq_resource(pdev, entry->irq);
+
+	pdev->dev.platform_data = pdata;
+	intel_scu_device_register(pdev);
+}
+
+static void __init sfi_handle_spi_dev(struct spi_board_info *spi_info)
+{
+	const struct devs_id *dev = device_ids;
+	void *pdata = NULL;
+
+	while (dev->name[0]) {
+		if (dev->type == SFI_DEV_TYPE_SPI &&
+			!strncmp(dev->name, spi_info->modalias,
+						SFI_NAME_LEN)) {
+			pdata = dev->get_platform_data(spi_info);
+			break;
+		}
+		dev++;
+	}
+	spi_info->platform_data = pdata;
+	if (dev->delay)
+		intel_scu_spi_device_register(spi_info);
+	else
+		spi_register_board_info(spi_info, 1);
+}
+
+static void __init sfi_handle_i2c_dev(int bus, struct i2c_board_info *i2c_info)
+{
+	const struct devs_id *dev = device_ids;
+	void *pdata = NULL;
+
+	while (dev->name[0]) {
+		if (dev->type == SFI_DEV_TYPE_I2C &&
+			!strncmp(dev->name, i2c_info->type, SFI_NAME_LEN)) {
+			pdata = dev->get_platform_data(i2c_info);
+			break;
+		}
+		dev++;
+	}
+	i2c_info->platform_data = pdata;
+
+	if (dev->delay)
+		intel_scu_i2c_device_register(bus, i2c_info);
+	else
+		i2c_register_board_info(bus, i2c_info, 1);
+}
+
+
+static int __init sfi_parse_devs(struct sfi_table_header *table)
+{
+	struct sfi_table_simple *sb;
+	struct sfi_device_table_entry *pentry;
+	struct spi_board_info spi_info;
+	struct i2c_board_info i2c_info;
+	int num, i, bus;
+	int ioapic;
+	struct io_apic_irq_attr irq_attr;
+
+	sb = (struct sfi_table_simple *)table;
+	num = SFI_GET_NUM_ENTRIES(sb, struct sfi_device_table_entry);
+	pentry = (struct sfi_device_table_entry *)sb->pentry;
+
+	for (i = 0; i < num; i++, pentry++) {
+		int irq = pentry->irq;
+
+		if (irq != (u8)0xff) { /* native RTE case */
+			/* these SPI2 devices are not exposed to system as PCI
+			 * devices, but they have separate RTE entry in IOAPIC
+			 * so we have to enable them one by one here
+			 */
+			ioapic = mp_find_ioapic(irq);
+			irq_attr.ioapic = ioapic;
+			irq_attr.ioapic_pin = irq;
+			irq_attr.trigger = 1;
+			irq_attr.polarity = 1;
+			io_apic_set_pci_routing(NULL, irq, &irq_attr);
+		} else
+			irq = 0; /* No irq */
+
+		switch (pentry->type) {
+		case SFI_DEV_TYPE_IPC:
+			pr_debug("info[%2d]: IPC bus, name = %16.16s, "
+				"irq = 0x%2x\n", i, pentry->name, pentry->irq);
+			sfi_handle_ipc_dev(pentry);
+			break;
+		case SFI_DEV_TYPE_SPI:
+			memset(&spi_info, 0, sizeof(spi_info));
+			strncpy(spi_info.modalias, pentry->name, SFI_NAME_LEN);
+			spi_info.irq = irq;
+			spi_info.bus_num = pentry->host_num;
+			spi_info.chip_select = pentry->addr;
+			spi_info.max_speed_hz = pentry->max_freq;
+			pr_debug("info[%2d]: SPI bus = %d, name = %16.16s, "
+				"irq = 0x%2x, max_freq = %d, cs = %d\n", i,
+				spi_info.bus_num,
+				spi_info.modalias,
+				spi_info.irq,
+				spi_info.max_speed_hz,
+				spi_info.chip_select);
+			sfi_handle_spi_dev(&spi_info);
+			break;
+		case SFI_DEV_TYPE_I2C:
+			memset(&i2c_info, 0, sizeof(i2c_info));
+			bus = pentry->host_num;
+			strncpy(i2c_info.type, pentry->name, SFI_NAME_LEN);
+			i2c_info.irq = irq;
+			i2c_info.addr = pentry->addr;
+			pr_debug("info[%2d]: I2C bus = %d, name = %16.16s, "
+				"irq = 0x%2x, addr = 0x%x\n", i, bus,
+				i2c_info.type,
+				i2c_info.irq,
+				i2c_info.addr);
+			sfi_handle_i2c_dev(bus, &i2c_info);
+			break;
+		case SFI_DEV_TYPE_UART:
+		case SFI_DEV_TYPE_HSI:
+		default:
+			;
+		}
+	}
+	return 0;
+}
+
+static int __init mrst_platform_init(void)
+{
+	sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, sfi_parse_gpio);
+	sfi_table_parse(SFI_SIG_DEVS, NULL, NULL, sfi_parse_devs);
+	return 0;
+}
+arch_initcall(mrst_platform_init);
+
+/*
+ * we will search these buttons in SFI GPIO table (by name)
+ * and register them dynamically. Please add all possible
+ * buttons here, we will shrink them if no GPIO found.
+ */
+static struct gpio_keys_button gpio_button[] = {
+	{KEY_POWER,		-1, 1, "power_btn",	EV_KEY, 0, 3000},
+	{KEY_PROG1,		-1, 1, "prog_btn1",	EV_KEY, 0, 20},
+	{KEY_PROG2,		-1, 1, "prog_btn2",	EV_KEY, 0, 20},
+	{SW_LID,		-1, 1, "lid_switch",	EV_SW,  0, 20},
+	{KEY_VOLUMEUP,		-1, 1, "vol_up",	EV_KEY, 0, 20},
+	{KEY_VOLUMEDOWN,	-1, 1, "vol_down",	EV_KEY, 0, 20},
+	{KEY_CAMERA,		-1, 1, "camera_full",	EV_KEY, 0, 20},
+	{KEY_CAMERA_FOCUS,	-1, 1, "camera_half",	EV_KEY, 0, 20},
+	{SW_KEYPAD_SLIDE,	-1, 1, "MagSw1",	EV_SW,  0, 20},
+	{SW_KEYPAD_SLIDE,	-1, 1, "MagSw2",	EV_SW,  0, 20},
+};
+
+static struct gpio_keys_platform_data mrst_gpio_keys = {
+	.buttons	= gpio_button,
+	.rep		= 1,
+	.nbuttons	= -1, /* will fill it after search */
+};
+
+static struct platform_device pb_device = {
+	.name		= "gpio-keys",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= &mrst_gpio_keys,
+	},
+};
+
+/*
+ * Shrink the non-existent buttons, register the gpio button
+ * device if there is some
+ */
+static int __init pb_keys_init(void)
+{
+	struct gpio_keys_button *gb = gpio_button;
+	int i, num, good = 0;
+
+	num = sizeof(gpio_button) / sizeof(struct gpio_keys_button);
+	for (i = 0; i < num; i++) {
+		gb[i].gpio = get_gpio_by_name(gb[i].desc);
+		pr_debug("info[%2d]: name = %s, gpio = %d\n", i, gb[i].desc,
+					gb[i].gpio);
+		if (gb[i].gpio == -1)
+			continue;
+
+		if (i != good)
+			gb[good] = gb[i];
+		good++;
+	}
+
+	if (good) {
+		mrst_gpio_keys.nbuttons = good;
+		return platform_device_register(&pb_device);
+	}
+	return 0;
+}
+late_initcall(pb_keys_init);
diff --git a/arch/x86/platform/intel-mid/intel_mid_vrtc.c b/arch/x86/platform/intel-mid/intel_mid_vrtc.c
new file mode 100644
index 000000000000..ded9fbd81996
--- /dev/null
+++ b/arch/x86/platform/intel-mid/intel_mid_vrtc.c
@@ -0,0 +1,177 @@
+/*
+ * intel_mid_vrtc.c: Driver for virtual RTC device on Intel MID platform
+ *
+ * (C) Copyright 2009 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ *
+ * Note:
+ * VRTC is emulated by system controller firmware, the real HW
+ * RTC is located in the PMIC device. SCU FW shadows PMIC RTC
+ * in a memory mapped IO space that is visible to the host IA
+ * processor.
+ *
+ * This driver is based on RTC CMOS driver.
+ */
+
+#include <linux/kernel.h>
+#include <linux/export.h>
+#include <linux/init.h>
+#include <linux/sfi.h>
+#include <linux/platform_device.h>
+
+#include <asm/intel-mid.h>
+#include <asm/intel_mid_vrtc.h>
+#include <asm/time.h>
+#include <asm/fixmap.h>
+
+static unsigned char __iomem *vrtc_virt_base;
+
+unsigned char vrtc_cmos_read(unsigned char reg)
+{
+	unsigned char retval;
+
+	/* vRTC's registers range from 0x0 to 0xD */
+	if (reg > 0xd || !vrtc_virt_base)
+		return 0xff;
+
+	lock_cmos_prefix(reg);
+	retval = __raw_readb(vrtc_virt_base + (reg << 2));
+	lock_cmos_suffix(reg);
+	return retval;
+}
+EXPORT_SYMBOL_GPL(vrtc_cmos_read);
+
+void vrtc_cmos_write(unsigned char val, unsigned char reg)
+{
+	if (reg > 0xd || !vrtc_virt_base)
+		return;
+
+	lock_cmos_prefix(reg);
+	__raw_writeb(val, vrtc_virt_base + (reg << 2));
+	lock_cmos_suffix(reg);
+}
+EXPORT_SYMBOL_GPL(vrtc_cmos_write);
+
+void vrtc_get_time(struct timespec *now)
+{
+	u8 sec, min, hour, mday, mon;
+	unsigned long flags;
+	u32 year;
+
+	spin_lock_irqsave(&rtc_lock, flags);
+
+	while ((vrtc_cmos_read(RTC_FREQ_SELECT) & RTC_UIP))
+		cpu_relax();
+
+	sec = vrtc_cmos_read(RTC_SECONDS);
+	min = vrtc_cmos_read(RTC_MINUTES);
+	hour = vrtc_cmos_read(RTC_HOURS);
+	mday = vrtc_cmos_read(RTC_DAY_OF_MONTH);
+	mon = vrtc_cmos_read(RTC_MONTH);
+	year = vrtc_cmos_read(RTC_YEAR);
+
+	spin_unlock_irqrestore(&rtc_lock, flags);
+
+	/* vRTC YEAR reg contains the offset to 1972 */
+	year += 1972;
+
+	pr_info("vRTC: sec: %d min: %d hour: %d day: %d "
+		"mon: %d year: %d\n", sec, min, hour, mday, mon, year);
+
+	now->tv_sec = mktime(year, mon, mday, hour, min, sec);
+	now->tv_nsec = 0;
+}
+
+int vrtc_set_mmss(const struct timespec *now)
+{
+	unsigned long flags;
+	struct rtc_time tm;
+	int year;
+	int retval = 0;
+
+	rtc_time_to_tm(now->tv_sec, &tm);
+	if (!rtc_valid_tm(&tm) && tm.tm_year >= 72) {
+		/*
+		 * tm.year is the number of years since 1900, and the
+		 * vrtc need the years since 1972.
+		 */
+		year = tm.tm_year - 72;
+		spin_lock_irqsave(&rtc_lock, flags);
+		vrtc_cmos_write(year, RTC_YEAR);
+		vrtc_cmos_write(tm.tm_mon, RTC_MONTH);
+		vrtc_cmos_write(tm.tm_mday, RTC_DAY_OF_MONTH);
+		vrtc_cmos_write(tm.tm_hour, RTC_HOURS);
+		vrtc_cmos_write(tm.tm_min, RTC_MINUTES);
+		vrtc_cmos_write(tm.tm_sec, RTC_SECONDS);
+		spin_unlock_irqrestore(&rtc_lock, flags);
+	} else {
+		pr_err("%s: Invalid vRTC value: write of %lx to vRTC failed\n",
+			__FUNCTION__, now->tv_sec);
+		retval = -EINVAL;
+	}
+	return retval;
+}
+
+void __init mrst_rtc_init(void)
+{
+	unsigned long vrtc_paddr;
+
+	sfi_table_parse(SFI_SIG_MRTC, NULL, NULL, sfi_parse_mrtc);
+
+	vrtc_paddr = sfi_mrtc_array[0].phys_addr;
+	if (!sfi_mrtc_num || !vrtc_paddr)
+		return;
+
+	vrtc_virt_base = (void __iomem *)set_fixmap_offset_nocache(FIX_LNW_VRTC,
+								vrtc_paddr);
+	x86_platform.get_wallclock = vrtc_get_time;
+	x86_platform.set_wallclock = vrtc_set_mmss;
+}
+
+/*
+ * The Moorestown platform has a memory mapped virtual RTC device that emulates
+ * the programming interface of the RTC.
+ */
+
+static struct resource vrtc_resources[] = {
+	[0] = {
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.flags	= IORESOURCE_IRQ,
+	}
+};
+
+static struct platform_device vrtc_device = {
+	.name		= "rtc_mrst",
+	.id		= -1,
+	.resource	= vrtc_resources,
+	.num_resources	= ARRAY_SIZE(vrtc_resources),
+};
+
+/* Register the RTC device if appropriate */
+static int __init mrst_device_create(void)
+{
+	/* No Moorestown, no device */
+	if (!mrst_identify_cpu())
+		return -ENODEV;
+	/* No timer, no device */
+	if (!sfi_mrtc_num)
+		return -ENODEV;
+
+	/* iomem resource */
+	vrtc_resources[0].start = sfi_mrtc_array[0].phys_addr;
+	vrtc_resources[0].end = sfi_mrtc_array[0].phys_addr +
+				MRST_VRTC_MAP_SZ;
+	/* irq resource */
+	vrtc_resources[1].start = sfi_mrtc_array[0].irq;
+	vrtc_resources[1].end = sfi_mrtc_array[0].irq;
+
+	return platform_device_register(&vrtc_device);
+}
+
+module_init(mrst_device_create);
diff --git a/arch/x86/platform/mrst/Makefile b/arch/x86/platform/mrst/Makefile
deleted file mode 100644
index af1da7e623f9..000000000000
--- a/arch/x86/platform/mrst/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-obj-$(CONFIG_X86_INTEL_MID)	+= mrst.o
-obj-$(CONFIG_X86_INTEL_MID)	+= vrtc.o
-obj-$(CONFIG_EARLY_PRINTK_INTEL_MID)	+= early_printk_mrst.o
diff --git a/arch/x86/platform/mrst/early_printk_mrst.c b/arch/x86/platform/mrst/early_printk_mrst.c
deleted file mode 100644
index 39ecc276cd84..000000000000
--- a/arch/x86/platform/mrst/early_printk_mrst.c
+++ /dev/null
@@ -1,325 +0,0 @@
-/*
- * early_printk_mrst.c - early consoles for Intel MID platforms
- *
- * Copyright (c) 2008-2010, Intel Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; version 2
- * of the License.
- */
-
-/*
- * This file implements two early consoles named mrst and hsu.
- * mrst is based on Maxim3110 spi-uart device, it exists in both
- * Moorestown and Medfield platforms, while hsu is based on a High
- * Speed UART device which only exists in the Medfield platform
- */
-
-#include <linux/serial_reg.h>
-#include <linux/serial_mfd.h>
-#include <linux/kmsg_dump.h>
-#include <linux/console.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/init.h>
-#include <linux/io.h>
-
-#include <asm/fixmap.h>
-#include <asm/pgtable.h>
-#include <asm/mrst.h>
-
-#define MRST_SPI_TIMEOUT		0x200000
-#define MRST_REGBASE_SPI0		0xff128000
-#define MRST_REGBASE_SPI1		0xff128400
-#define MRST_CLK_SPI0_REG		0xff11d86c
-
-/* Bit fields in CTRLR0 */
-#define SPI_DFS_OFFSET			0
-
-#define SPI_FRF_OFFSET			4
-#define SPI_FRF_SPI			0x0
-#define SPI_FRF_SSP			0x1
-#define SPI_FRF_MICROWIRE		0x2
-#define SPI_FRF_RESV			0x3
-
-#define SPI_MODE_OFFSET			6
-#define SPI_SCPH_OFFSET			6
-#define SPI_SCOL_OFFSET			7
-#define SPI_TMOD_OFFSET			8
-#define	SPI_TMOD_TR			0x0		/* xmit & recv */
-#define SPI_TMOD_TO			0x1		/* xmit only */
-#define SPI_TMOD_RO			0x2		/* recv only */
-#define SPI_TMOD_EPROMREAD		0x3		/* eeprom read mode */
-
-#define SPI_SLVOE_OFFSET		10
-#define SPI_SRL_OFFSET			11
-#define SPI_CFS_OFFSET			12
-
-/* Bit fields in SR, 7 bits */
-#define SR_MASK				0x7f		/* cover 7 bits */
-#define SR_BUSY				(1 << 0)
-#define SR_TF_NOT_FULL			(1 << 1)
-#define SR_TF_EMPT			(1 << 2)
-#define SR_RF_NOT_EMPT			(1 << 3)
-#define SR_RF_FULL			(1 << 4)
-#define SR_TX_ERR			(1 << 5)
-#define SR_DCOL				(1 << 6)
-
-struct dw_spi_reg {
-	u32	ctrl0;
-	u32	ctrl1;
-	u32	ssienr;
-	u32	mwcr;
-	u32	ser;
-	u32	baudr;
-	u32	txfltr;
-	u32	rxfltr;
-	u32	txflr;
-	u32	rxflr;
-	u32	sr;
-	u32	imr;
-	u32	isr;
-	u32	risr;
-	u32	txoicr;
-	u32	rxoicr;
-	u32	rxuicr;
-	u32	msticr;
-	u32	icr;
-	u32	dmacr;
-	u32	dmatdlr;
-	u32	dmardlr;
-	u32	idr;
-	u32	version;
-
-	/* Currently operates as 32 bits, though only the low 16 bits matter */
-	u32	dr;
-} __packed;
-
-#define dw_readl(dw, name)		__raw_readl(&(dw)->name)
-#define dw_writel(dw, name, val)	__raw_writel((val), &(dw)->name)
-
-/* Default use SPI0 register for mrst, we will detect Penwell and use SPI1 */
-static unsigned long mrst_spi_paddr = MRST_REGBASE_SPI0;
-
-static u32 *pclk_spi0;
-/* Always contains an accessible address, start with 0 */
-static struct dw_spi_reg *pspi;
-
-static struct kmsg_dumper dw_dumper;
-static int dumper_registered;
-
-static void dw_kmsg_dump(struct kmsg_dumper *dumper,
-			 enum kmsg_dump_reason reason)
-{
-	static char line[1024];
-	size_t len;
-
-	/* When run to this, we'd better re-init the HW */
-	mrst_early_console_init();
-
-	while (kmsg_dump_get_line(dumper, true, line, sizeof(line), &len))
-		early_mrst_console.write(&early_mrst_console, line, len);
-}
-
-/* Set the ratio rate to 115200, 8n1, IRQ disabled */
-static void max3110_write_config(void)
-{
-	u16 config;
-
-	config = 0xc001;
-	dw_writel(pspi, dr, config);
-}
-
-/* Translate char to a eligible word and send to max3110 */
-static void max3110_write_data(char c)
-{
-	u16 data;
-
-	data = 0x8000 | c;
-	dw_writel(pspi, dr, data);
-}
-
-void mrst_early_console_init(void)
-{
-	u32 ctrlr0 = 0;
-	u32 spi0_cdiv;
-	u32 freq; /* Freqency info only need be searched once */
-
-	/* Base clk is 100 MHz, the actual clk = 100M / (clk_divider + 1) */
-	pclk_spi0 = (void *)set_fixmap_offset_nocache(FIX_EARLYCON_MEM_BASE,
-							MRST_CLK_SPI0_REG);
-	spi0_cdiv = ((*pclk_spi0) & 0xe00) >> 9;
-	freq = 100000000 / (spi0_cdiv + 1);
-
-	if (mrst_identify_cpu() == MRST_CPU_CHIP_PENWELL)
-		mrst_spi_paddr = MRST_REGBASE_SPI1;
-
-	pspi = (void *)set_fixmap_offset_nocache(FIX_EARLYCON_MEM_BASE,
-						mrst_spi_paddr);
-
-	/* Disable SPI controller */
-	dw_writel(pspi, ssienr, 0);
-
-	/* Set control param, 8 bits, transmit only mode */
-	ctrlr0 = dw_readl(pspi, ctrl0);
-
-	ctrlr0 &= 0xfcc0;
-	ctrlr0 |= 0xf | (SPI_FRF_SPI << SPI_FRF_OFFSET)
-		      | (SPI_TMOD_TO << SPI_TMOD_OFFSET);
-	dw_writel(pspi, ctrl0, ctrlr0);
-
-	/*
-	 * Change the spi0 clk to comply with 115200 bps, use 100000 to
-	 * calculate the clk dividor to make the clock a little slower
-	 * than real baud rate.
-	 */
-	dw_writel(pspi, baudr, freq/100000);
-
-	/* Disable all INT for early phase */
-	dw_writel(pspi, imr, 0x0);
-
-	/* Set the cs to spi-uart */
-	dw_writel(pspi, ser, 0x2);
-
-	/* Enable the HW, the last step for HW init */
-	dw_writel(pspi, ssienr, 0x1);
-
-	/* Set the default configuration */
-	max3110_write_config();
-
-	/* Register the kmsg dumper */
-	if (!dumper_registered) {
-		dw_dumper.dump = dw_kmsg_dump;
-		kmsg_dump_register(&dw_dumper);
-		dumper_registered = 1;
-	}
-}
-
-/* Slave select should be called in the read/write function */
-static void early_mrst_spi_putc(char c)
-{
-	unsigned int timeout;
-	u32 sr;
-
-	timeout = MRST_SPI_TIMEOUT;
-	/* Early putc needs to make sure the TX FIFO is not full */
-	while (--timeout) {
-		sr = dw_readl(pspi, sr);
-		if (!(sr & SR_TF_NOT_FULL))
-			cpu_relax();
-		else
-			break;
-	}
-
-	if (!timeout)
-		pr_warn("MRST earlycon: timed out\n");
-	else
-		max3110_write_data(c);
-}
-
-/* Early SPI only uses polling mode */
-static void early_mrst_spi_write(struct console *con, const char *str,
-					unsigned n)
-{
-	int i;
-
-	for (i = 0; i < n && *str; i++) {
-		if (*str == '\n')
-			early_mrst_spi_putc('\r');
-		early_mrst_spi_putc(*str);
-		str++;
-	}
-}
-
-struct console early_mrst_console = {
-	.name =		"earlymrst",
-	.write =	early_mrst_spi_write,
-	.flags =	CON_PRINTBUFFER,
-	.index =	-1,
-};
-
-/*
- * Following is the early console based on Medfield HSU (High
- * Speed UART) device.
- */
-#define HSU_PORT_BASE		0xffa28080
-
-static void __iomem *phsu;
-
-void hsu_early_console_init(const char *s)
-{
-	unsigned long paddr, port = 0;
-	u8 lcr;
-
-	/*
-	 * Select the early HSU console port if specified by user in the
-	 * kernel command line.
-	 */
-	if (*s && !kstrtoul(s, 10, &port))
-		port = clamp_val(port, 0, 2);
-
-	paddr = HSU_PORT_BASE + port * 0x80;
-	phsu = (void *)set_fixmap_offset_nocache(FIX_EARLYCON_MEM_BASE, paddr);
-
-	/* Disable FIFO */
-	writeb(0x0, phsu + UART_FCR);
-
-	/* Set to default 115200 bps, 8n1 */
-	lcr = readb(phsu + UART_LCR);
-	writeb((0x80 | lcr), phsu + UART_LCR);
-	writeb(0x18, phsu + UART_DLL);
-	writeb(lcr,  phsu + UART_LCR);
-	writel(0x3600, phsu + UART_MUL*4);
-
-	writeb(0x8, phsu + UART_MCR);
-	writeb(0x7, phsu + UART_FCR);
-	writeb(0x3, phsu + UART_LCR);
-
-	/* Clear IRQ status */
-	readb(phsu + UART_LSR);
-	readb(phsu + UART_RX);
-	readb(phsu + UART_IIR);
-	readb(phsu + UART_MSR);
-
-	/* Enable FIFO */
-	writeb(0x7, phsu + UART_FCR);
-}
-
-#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
-
-static void early_hsu_putc(char ch)
-{
-	unsigned int timeout = 10000; /* 10ms */
-	u8 status;
-
-	while (--timeout) {
-		status = readb(phsu + UART_LSR);
-		if (status & BOTH_EMPTY)
-			break;
-		udelay(1);
-	}
-
-	/* Only write the char when there was no timeout */
-	if (timeout)
-		writeb(ch, phsu + UART_TX);
-}
-
-static void early_hsu_write(struct console *con, const char *str, unsigned n)
-{
-	int i;
-
-	for (i = 0; i < n && *str; i++) {
-		if (*str == '\n')
-			early_hsu_putc('\r');
-		early_hsu_putc(*str);
-		str++;
-	}
-}
-
-struct console early_hsu_console = {
-	.name =		"earlyhsu",
-	.write =	early_hsu_write,
-	.flags =	CON_PRINTBUFFER,
-	.index =	-1,
-};
diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c
deleted file mode 100644
index 235a74244777..000000000000
--- a/arch/x86/platform/mrst/mrst.c
+++ /dev/null
@@ -1,1054 +0,0 @@
-/*
- * mrst.c: Intel Moorestown platform specific setup code
- *
- * (C) Copyright 2008 Intel Corporation
- * Author: Jacob Pan (jacob.jun.pan@intel.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; version 2
- * of the License.
- */
-
-#define pr_fmt(fmt) "mrst: " fmt
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-#include <linux/scatterlist.h>
-#include <linux/sfi.h>
-#include <linux/intel_pmic_gpio.h>
-#include <linux/spi/spi.h>
-#include <linux/i2c.h>
-#include <linux/platform_data/pca953x.h>
-#include <linux/gpio_keys.h>
-#include <linux/input.h>
-#include <linux/platform_device.h>
-#include <linux/irq.h>
-#include <linux/module.h>
-#include <linux/notifier.h>
-#include <linux/mfd/intel_msic.h>
-#include <linux/gpio.h>
-#include <linux/i2c/tc35876x.h>
-
-#include <asm/setup.h>
-#include <asm/mpspec_def.h>
-#include <asm/hw_irq.h>
-#include <asm/apic.h>
-#include <asm/io_apic.h>
-#include <asm/mrst.h>
-#include <asm/mrst-vrtc.h>
-#include <asm/io.h>
-#include <asm/i8259.h>
-#include <asm/intel_scu_ipc.h>
-#include <asm/apb_timer.h>
-#include <asm/reboot.h>
-
-/*
- * the clockevent devices on Moorestown/Medfield can be APBT or LAPIC clock,
- * cmdline option x86_mrst_timer can be used to override the configuration
- * to prefer one or the other.
- * at runtime, there are basically three timer configurations:
- * 1. per cpu apbt clock only
- * 2. per cpu always-on lapic clocks only, this is Penwell/Medfield only
- * 3. per cpu lapic clock (C3STOP) and one apbt clock, with broadcast.
- *
- * by default (without cmdline option), platform code first detects cpu type
- * to see if we are on lincroft or penwell, then set up both lapic or apbt
- * clocks accordingly.
- * i.e. by default, medfield uses configuration #2, moorestown uses #1.
- * config #3 is supported but not recommended on medfield.
- *
- * rating and feature summary:
- * lapic (with C3STOP) --------- 100
- * apbt (always-on) ------------ 110
- * lapic (always-on,ARAT) ------ 150
- */
-
-enum mrst_timer_options mrst_timer_options;
-
-static u32 sfi_mtimer_usage[SFI_MTMR_MAX_NUM];
-static struct sfi_timer_table_entry sfi_mtimer_array[SFI_MTMR_MAX_NUM];
-enum mrst_cpu_type __mrst_cpu_chip;
-EXPORT_SYMBOL_GPL(__mrst_cpu_chip);
-
-int sfi_mtimer_num;
-
-struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX];
-EXPORT_SYMBOL_GPL(sfi_mrtc_array);
-int sfi_mrtc_num;
-
-static void mrst_power_off(void)
-{
-}
-
-static void mrst_reboot(void)
-{
-	intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
-}
-
-/* parse all the mtimer info to a static mtimer array */
-static int __init sfi_parse_mtmr(struct sfi_table_header *table)
-{
-	struct sfi_table_simple *sb;
-	struct sfi_timer_table_entry *pentry;
-	struct mpc_intsrc mp_irq;
-	int totallen;
-
-	sb = (struct sfi_table_simple *)table;
-	if (!sfi_mtimer_num) {
-		sfi_mtimer_num = SFI_GET_NUM_ENTRIES(sb,
-					struct sfi_timer_table_entry);
-		pentry = (struct sfi_timer_table_entry *) sb->pentry;
-		totallen = sfi_mtimer_num * sizeof(*pentry);
-		memcpy(sfi_mtimer_array, pentry, totallen);
-	}
-
-	pr_debug("SFI MTIMER info (num = %d):\n", sfi_mtimer_num);
-	pentry = sfi_mtimer_array;
-	for (totallen = 0; totallen < sfi_mtimer_num; totallen++, pentry++) {
-		pr_debug("timer[%d]: paddr = 0x%08x, freq = %dHz,"
-			" irq = %d\n", totallen, (u32)pentry->phys_addr,
-			pentry->freq_hz, pentry->irq);
-			if (!pentry->irq)
-				continue;
-			mp_irq.type = MP_INTSRC;
-			mp_irq.irqtype = mp_INT;
-/* triggering mode edge bit 2-3, active high polarity bit 0-1 */
-			mp_irq.irqflag = 5;
-			mp_irq.srcbus = MP_BUS_ISA;
-			mp_irq.srcbusirq = pentry->irq;	/* IRQ */
-			mp_irq.dstapic = MP_APIC_ALL;
-			mp_irq.dstirq = pentry->irq;
-			mp_save_irq(&mp_irq);
-	}
-
-	return 0;
-}
-
-struct sfi_timer_table_entry *sfi_get_mtmr(int hint)
-{
-	int i;
-	if (hint < sfi_mtimer_num) {
-		if (!sfi_mtimer_usage[hint]) {
-			pr_debug("hint taken for timer %d irq %d\n",
-				hint, sfi_mtimer_array[hint].irq);
-			sfi_mtimer_usage[hint] = 1;
-			return &sfi_mtimer_array[hint];
-		}
-	}
-	/* take the first timer available */
-	for (i = 0; i < sfi_mtimer_num;) {
-		if (!sfi_mtimer_usage[i]) {
-			sfi_mtimer_usage[i] = 1;
-			return &sfi_mtimer_array[i];
-		}
-		i++;
-	}
-	return NULL;
-}
-
-void sfi_free_mtmr(struct sfi_timer_table_entry *mtmr)
-{
-	int i;
-	for (i = 0; i < sfi_mtimer_num;) {
-		if (mtmr->irq == sfi_mtimer_array[i].irq) {
-			sfi_mtimer_usage[i] = 0;
-			return;
-		}
-		i++;
-	}
-}
-
-/* parse all the mrtc info to a global mrtc array */
-int __init sfi_parse_mrtc(struct sfi_table_header *table)
-{
-	struct sfi_table_simple *sb;
-	struct sfi_rtc_table_entry *pentry;
-	struct mpc_intsrc mp_irq;
-
-	int totallen;
-
-	sb = (struct sfi_table_simple *)table;
-	if (!sfi_mrtc_num) {
-		sfi_mrtc_num = SFI_GET_NUM_ENTRIES(sb,
-						struct sfi_rtc_table_entry);
-		pentry = (struct sfi_rtc_table_entry *)sb->pentry;
-		totallen = sfi_mrtc_num * sizeof(*pentry);
-		memcpy(sfi_mrtc_array, pentry, totallen);
-	}
-
-	pr_debug("SFI RTC info (num = %d):\n", sfi_mrtc_num);
-	pentry = sfi_mrtc_array;
-	for (totallen = 0; totallen < sfi_mrtc_num; totallen++, pentry++) {
-		pr_debug("RTC[%d]: paddr = 0x%08x, irq = %d\n",
-			totallen, (u32)pentry->phys_addr, pentry->irq);
-		mp_irq.type = MP_INTSRC;
-		mp_irq.irqtype = mp_INT;
-		mp_irq.irqflag = 0xf;	/* level trigger and active low */
-		mp_irq.srcbus = MP_BUS_ISA;
-		mp_irq.srcbusirq = pentry->irq;	/* IRQ */
-		mp_irq.dstapic = MP_APIC_ALL;
-		mp_irq.dstirq = pentry->irq;
-		mp_save_irq(&mp_irq);
-	}
-	return 0;
-}
-
-static unsigned long __init mrst_calibrate_tsc(void)
-{
-	unsigned long fast_calibrate;
-	u32 lo, hi, ratio, fsb;
-
-	rdmsr(MSR_IA32_PERF_STATUS, lo, hi);
-	pr_debug("IA32 perf status is 0x%x, 0x%0x\n", lo, hi);
-	ratio = (hi >> 8) & 0x1f;
-	pr_debug("ratio is %d\n", ratio);
-	if (!ratio) {
-		pr_err("read a zero ratio, should be incorrect!\n");
-		pr_err("force tsc ratio to 16 ...\n");
-		ratio = 16;
-	}
-	rdmsr(MSR_FSB_FREQ, lo, hi);
-	if ((lo & 0x7) == 0x7)
-		fsb = PENWELL_FSB_FREQ_83SKU;
-	else
-		fsb = PENWELL_FSB_FREQ_100SKU;
-	fast_calibrate = ratio * fsb;
-	pr_debug("read penwell tsc %lu khz\n", fast_calibrate);
-	lapic_timer_frequency = fsb * 1000 / HZ;
-	/* mark tsc clocksource as reliable */
-	set_cpu_cap(&boot_cpu_data, X86_FEATURE_TSC_RELIABLE);
-	
-	if (fast_calibrate)
-		return fast_calibrate;
-
-	return 0;
-}
-
-static void __init mrst_time_init(void)
-{
-	sfi_table_parse(SFI_SIG_MTMR, NULL, NULL, sfi_parse_mtmr);
-	switch (mrst_timer_options) {
-	case MRST_TIMER_APBT_ONLY:
-		break;
-	case MRST_TIMER_LAPIC_APBT:
-		x86_init.timers.setup_percpu_clockev = setup_boot_APIC_clock;
-		x86_cpuinit.setup_percpu_clockev = setup_secondary_APIC_clock;
-		break;
-	default:
-		if (!boot_cpu_has(X86_FEATURE_ARAT))
-			break;
-		x86_init.timers.setup_percpu_clockev = setup_boot_APIC_clock;
-		x86_cpuinit.setup_percpu_clockev = setup_secondary_APIC_clock;
-		return;
-	}
-	/* we need at least one APB timer */
-	pre_init_apic_IRQ0();
-	apbt_time_init();
-}
-
-static void mrst_arch_setup(void)
-{
-	if (boot_cpu_data.x86 == 6 && boot_cpu_data.x86_model == 0x27)
-		__mrst_cpu_chip = MRST_CPU_CHIP_PENWELL;
-	else {
-		pr_err("Unknown Intel MID CPU (%d:%d), default to Penwell\n",
-			boot_cpu_data.x86, boot_cpu_data.x86_model);
-		__mrst_cpu_chip = MRST_CPU_CHIP_PENWELL;
-	}
-}
-
-/* MID systems don't have i8042 controller */
-static int mrst_i8042_detect(void)
-{
-	return 0;
-}
-
-/*
- * Moorestown does not have external NMI source nor port 0x61 to report
- * NMI status. The possible NMI sources are from pmu as a result of NMI
- * watchdog or lock debug. Reading io port 0x61 results in 0xff which
- * misled NMI handler.
- */
-static unsigned char mrst_get_nmi_reason(void)
-{
-	return 0;
-}
-
-/*
- * Moorestown specific x86_init function overrides and early setup
- * calls.
- */
-void __init x86_mrst_early_setup(void)
-{
-	x86_init.resources.probe_roms = x86_init_noop;
-	x86_init.resources.reserve_resources = x86_init_noop;
-
-	x86_init.timers.timer_init = mrst_time_init;
-	x86_init.timers.setup_percpu_clockev = x86_init_noop;
-
-	x86_init.irqs.pre_vector_init = x86_init_noop;
-
-	x86_init.oem.arch_setup = mrst_arch_setup;
-
-	x86_cpuinit.setup_percpu_clockev = apbt_setup_secondary_clock;
-
-	x86_platform.calibrate_tsc = mrst_calibrate_tsc;
-	x86_platform.i8042_detect = mrst_i8042_detect;
-	x86_init.timers.wallclock_init = mrst_rtc_init;
-	x86_platform.get_nmi_reason = mrst_get_nmi_reason;
-
-	x86_init.pci.init = pci_mrst_init;
-	x86_init.pci.fixup_irqs = x86_init_noop;
-
-	legacy_pic = &null_legacy_pic;
-
-	/* Moorestown specific power_off/restart method */
-	pm_power_off = mrst_power_off;
-	machine_ops.emergency_restart  = mrst_reboot;
-
-	/* Avoid searching for BIOS MP tables */
-	x86_init.mpparse.find_smp_config = x86_init_noop;
-	x86_init.mpparse.get_smp_config = x86_init_uint_noop;
-	set_bit(MP_BUS_ISA, mp_bus_not_pci);
-}
-
-/*
- * if user does not want to use per CPU apb timer, just give it a lower rating
- * than local apic timer and skip the late per cpu timer init.
- */
-static inline int __init setup_x86_mrst_timer(char *arg)
-{
-	if (!arg)
-		return -EINVAL;
-
-	if (strcmp("apbt_only", arg) == 0)
-		mrst_timer_options = MRST_TIMER_APBT_ONLY;
-	else if (strcmp("lapic_and_apbt", arg) == 0)
-		mrst_timer_options = MRST_TIMER_LAPIC_APBT;
-	else {
-		pr_warn("X86 MRST timer option %s not recognised"
-			   " use x86_mrst_timer=apbt_only or lapic_and_apbt\n",
-			   arg);
-		return -EINVAL;
-	}
-	return 0;
-}
-__setup("x86_mrst_timer=", setup_x86_mrst_timer);
-
-/*
- * Parsing GPIO table first, since the DEVS table will need this table
- * to map the pin name to the actual pin.
- */
-static struct sfi_gpio_table_entry *gpio_table;
-static int gpio_num_entry;
-
-static int __init sfi_parse_gpio(struct sfi_table_header *table)
-{
-	struct sfi_table_simple *sb;
-	struct sfi_gpio_table_entry *pentry;
-	int num, i;
-
-	if (gpio_table)
-		return 0;
-	sb = (struct sfi_table_simple *)table;
-	num = SFI_GET_NUM_ENTRIES(sb, struct sfi_gpio_table_entry);
-	pentry = (struct sfi_gpio_table_entry *)sb->pentry;
-
-	gpio_table = kmalloc(num * sizeof(*pentry), GFP_KERNEL);
-	if (!gpio_table)
-		return -1;
-	memcpy(gpio_table, pentry, num * sizeof(*pentry));
-	gpio_num_entry = num;
-
-	pr_debug("GPIO pin info:\n");
-	for (i = 0; i < num; i++, pentry++)
-		pr_debug("info[%2d]: controller = %16.16s, pin_name = %16.16s,"
-		" pin = %d\n", i,
-			pentry->controller_name,
-			pentry->pin_name,
-			pentry->pin_no);
-	return 0;
-}
-
-static int get_gpio_by_name(const char *name)
-{
-	struct sfi_gpio_table_entry *pentry = gpio_table;
-	int i;
-
-	if (!pentry)
-		return -1;
-	for (i = 0; i < gpio_num_entry; i++, pentry++) {
-		if (!strncmp(name, pentry->pin_name, SFI_NAME_LEN))
-			return pentry->pin_no;
-	}
-	return -1;
-}
-
-/*
- * Here defines the array of devices platform data that IAFW would export
- * through SFI "DEVS" table, we use name and type to match the device and
- * its platform data.
- */
-struct devs_id {
-	char name[SFI_NAME_LEN + 1];
-	u8 type;
-	u8 delay;
-	void *(*get_platform_data)(void *info);
-};
-
-/* the offset for the mapping of global gpio pin to irq */
-#define MRST_IRQ_OFFSET 0x100
-
-static void __init *pmic_gpio_platform_data(void *info)
-{
-	static struct intel_pmic_gpio_platform_data pmic_gpio_pdata;
-	int gpio_base = get_gpio_by_name("pmic_gpio_base");
-
-	if (gpio_base == -1)
-		gpio_base = 64;
-	pmic_gpio_pdata.gpio_base = gpio_base;
-	pmic_gpio_pdata.irq_base = gpio_base + MRST_IRQ_OFFSET;
-	pmic_gpio_pdata.gpiointr = 0xffffeff8;
-
-	return &pmic_gpio_pdata;
-}
-
-static void __init *max3111_platform_data(void *info)
-{
-	struct spi_board_info *spi_info = info;
-	int intr = get_gpio_by_name("max3111_int");
-
-	spi_info->mode = SPI_MODE_0;
-	if (intr == -1)
-		return NULL;
-	spi_info->irq = intr + MRST_IRQ_OFFSET;
-	return NULL;
-}
-
-/* we have multiple max7315 on the board ... */
-#define MAX7315_NUM 2
-static void __init *max7315_platform_data(void *info)
-{
-	static struct pca953x_platform_data max7315_pdata[MAX7315_NUM];
-	static int nr;
-	struct pca953x_platform_data *max7315 = &max7315_pdata[nr];
-	struct i2c_board_info *i2c_info = info;
-	int gpio_base, intr;
-	char base_pin_name[SFI_NAME_LEN + 1];
-	char intr_pin_name[SFI_NAME_LEN + 1];
-
-	if (nr == MAX7315_NUM) {
-		pr_err("too many max7315s, we only support %d\n",
-				MAX7315_NUM);
-		return NULL;
-	}
-	/* we have several max7315 on the board, we only need load several
-	 * instances of the same pca953x driver to cover them
-	 */
-	strcpy(i2c_info->type, "max7315");
-	if (nr++) {
-		sprintf(base_pin_name, "max7315_%d_base", nr);
-		sprintf(intr_pin_name, "max7315_%d_int", nr);
-	} else {
-		strcpy(base_pin_name, "max7315_base");
-		strcpy(intr_pin_name, "max7315_int");
-	}
-
-	gpio_base = get_gpio_by_name(base_pin_name);
-	intr = get_gpio_by_name(intr_pin_name);
-
-	if (gpio_base == -1)
-		return NULL;
-	max7315->gpio_base = gpio_base;
-	if (intr != -1) {
-		i2c_info->irq = intr + MRST_IRQ_OFFSET;
-		max7315->irq_base = gpio_base + MRST_IRQ_OFFSET;
-	} else {
-		i2c_info->irq = -1;
-		max7315->irq_base = -1;
-	}
-	return max7315;
-}
-
-static void *tca6416_platform_data(void *info)
-{
-	static struct pca953x_platform_data tca6416;
-	struct i2c_board_info *i2c_info = info;
-	int gpio_base, intr;
-	char base_pin_name[SFI_NAME_LEN + 1];
-	char intr_pin_name[SFI_NAME_LEN + 1];
-
-	strcpy(i2c_info->type, "tca6416");
-	strcpy(base_pin_name, "tca6416_base");
-	strcpy(intr_pin_name, "tca6416_int");
-
-	gpio_base = get_gpio_by_name(base_pin_name);
-	intr = get_gpio_by_name(intr_pin_name);
-
-	if (gpio_base == -1)
-		return NULL;
-	tca6416.gpio_base = gpio_base;
-	if (intr != -1) {
-		i2c_info->irq = intr + MRST_IRQ_OFFSET;
-		tca6416.irq_base = gpio_base + MRST_IRQ_OFFSET;
-	} else {
-		i2c_info->irq = -1;
-		tca6416.irq_base = -1;
-	}
-	return &tca6416;
-}
-
-static void *mpu3050_platform_data(void *info)
-{
-	struct i2c_board_info *i2c_info = info;
-	int intr = get_gpio_by_name("mpu3050_int");
-
-	if (intr == -1)
-		return NULL;
-
-	i2c_info->irq = intr + MRST_IRQ_OFFSET;
-	return NULL;
-}
-
-static void __init *emc1403_platform_data(void *info)
-{
-	static short intr2nd_pdata;
-	struct i2c_board_info *i2c_info = info;
-	int intr = get_gpio_by_name("thermal_int");
-	int intr2nd = get_gpio_by_name("thermal_alert");
-
-	if (intr == -1 || intr2nd == -1)
-		return NULL;
-
-	i2c_info->irq = intr + MRST_IRQ_OFFSET;
-	intr2nd_pdata = intr2nd + MRST_IRQ_OFFSET;
-
-	return &intr2nd_pdata;
-}
-
-static void __init *lis331dl_platform_data(void *info)
-{
-	static short intr2nd_pdata;
-	struct i2c_board_info *i2c_info = info;
-	int intr = get_gpio_by_name("accel_int");
-	int intr2nd = get_gpio_by_name("accel_2");
-
-	if (intr == -1 || intr2nd == -1)
-		return NULL;
-
-	i2c_info->irq = intr + MRST_IRQ_OFFSET;
-	intr2nd_pdata = intr2nd + MRST_IRQ_OFFSET;
-
-	return &intr2nd_pdata;
-}
-
-static void __init *no_platform_data(void *info)
-{
-	return NULL;
-}
-
-static struct resource msic_resources[] = {
-	{
-		.start	= INTEL_MSIC_IRQ_PHYS_BASE,
-		.end	= INTEL_MSIC_IRQ_PHYS_BASE + 64 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-};
-
-static struct intel_msic_platform_data msic_pdata;
-
-static struct platform_device msic_device = {
-	.name		= "intel_msic",
-	.id		= -1,
-	.dev		= {
-		.platform_data	= &msic_pdata,
-	},
-	.num_resources	= ARRAY_SIZE(msic_resources),
-	.resource	= msic_resources,
-};
-
-static inline bool mrst_has_msic(void)
-{
-	return mrst_identify_cpu() == MRST_CPU_CHIP_PENWELL;
-}
-
-static int msic_scu_status_change(struct notifier_block *nb,
-				  unsigned long code, void *data)
-{
-	if (code == SCU_DOWN) {
-		platform_device_unregister(&msic_device);
-		return 0;
-	}
-
-	return platform_device_register(&msic_device);
-}
-
-static int __init msic_init(void)
-{
-	static struct notifier_block msic_scu_notifier = {
-		.notifier_call	= msic_scu_status_change,
-	};
-
-	/*
-	 * We need to be sure that the SCU IPC is ready before MSIC device
-	 * can be registered.
-	 */
-	if (mrst_has_msic())
-		intel_scu_notifier_add(&msic_scu_notifier);
-
-	return 0;
-}
-arch_initcall(msic_init);
-
-/*
- * msic_generic_platform_data - sets generic platform data for the block
- * @info: pointer to the SFI device table entry for this block
- * @block: MSIC block
- *
- * Function sets IRQ number from the SFI table entry for given device to
- * the MSIC platform data.
- */
-static void *msic_generic_platform_data(void *info, enum intel_msic_block block)
-{
-	struct sfi_device_table_entry *entry = info;
-
-	BUG_ON(block < 0 || block >= INTEL_MSIC_BLOCK_LAST);
-	msic_pdata.irq[block] = entry->irq;
-
-	return no_platform_data(info);
-}
-
-static void *msic_battery_platform_data(void *info)
-{
-	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_BATTERY);
-}
-
-static void *msic_gpio_platform_data(void *info)
-{
-	static struct intel_msic_gpio_pdata pdata;
-	int gpio = get_gpio_by_name("msic_gpio_base");
-
-	if (gpio < 0)
-		return NULL;
-
-	pdata.gpio_base = gpio;
-	msic_pdata.gpio = &pdata;
-
-	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_GPIO);
-}
-
-static void *msic_audio_platform_data(void *info)
-{
-	struct platform_device *pdev;
-
-	pdev = platform_device_register_simple("sst-platform", -1, NULL, 0);
-	if (IS_ERR(pdev)) {
-		pr_err("failed to create audio platform device\n");
-		return NULL;
-	}
-
-	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_AUDIO);
-}
-
-static void *msic_power_btn_platform_data(void *info)
-{
-	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_POWER_BTN);
-}
-
-static void *msic_ocd_platform_data(void *info)
-{
-	static struct intel_msic_ocd_pdata pdata;
-	int gpio = get_gpio_by_name("ocd_gpio");
-
-	if (gpio < 0)
-		return NULL;
-
-	pdata.gpio = gpio;
-	msic_pdata.ocd = &pdata;
-
-	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_OCD);
-}
-
-static void *msic_thermal_platform_data(void *info)
-{
-	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_THERMAL);
-}
-
-/* tc35876x DSI-LVDS bridge chip and panel platform data */
-static void *tc35876x_platform_data(void *data)
-{
-	static struct tc35876x_platform_data pdata;
-
-	/* gpio pins set to -1 will not be used by the driver */
-	pdata.gpio_bridge_reset = get_gpio_by_name("LCMB_RXEN");
-	pdata.gpio_panel_bl_en = get_gpio_by_name("6S6P_BL_EN");
-	pdata.gpio_panel_vadd = get_gpio_by_name("EN_VREG_LCD_V3P3");
-
-	return &pdata;
-}
-
-static const struct devs_id __initconst device_ids[] = {
-	{"bma023", SFI_DEV_TYPE_I2C, 1, &no_platform_data},
-	{"pmic_gpio", SFI_DEV_TYPE_SPI, 1, &pmic_gpio_platform_data},
-	{"pmic_gpio", SFI_DEV_TYPE_IPC, 1, &pmic_gpio_platform_data},
-	{"spi_max3111", SFI_DEV_TYPE_SPI, 0, &max3111_platform_data},
-	{"i2c_max7315", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data},
-	{"i2c_max7315_2", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data},
-	{"tca6416", SFI_DEV_TYPE_I2C, 1, &tca6416_platform_data},
-	{"emc1403", SFI_DEV_TYPE_I2C, 1, &emc1403_platform_data},
-	{"i2c_accel", SFI_DEV_TYPE_I2C, 0, &lis331dl_platform_data},
-	{"pmic_audio", SFI_DEV_TYPE_IPC, 1, &no_platform_data},
-	{"mpu3050", SFI_DEV_TYPE_I2C, 1, &mpu3050_platform_data},
-	{"i2c_disp_brig", SFI_DEV_TYPE_I2C, 0, &tc35876x_platform_data},
-
-	/* MSIC subdevices */
-	{"msic_battery", SFI_DEV_TYPE_IPC, 1, &msic_battery_platform_data},
-	{"msic_gpio", SFI_DEV_TYPE_IPC, 1, &msic_gpio_platform_data},
-	{"msic_audio", SFI_DEV_TYPE_IPC, 1, &msic_audio_platform_data},
-	{"msic_power_btn", SFI_DEV_TYPE_IPC, 1, &msic_power_btn_platform_data},
-	{"msic_ocd", SFI_DEV_TYPE_IPC, 1, &msic_ocd_platform_data},
-	{"msic_thermal", SFI_DEV_TYPE_IPC, 1, &msic_thermal_platform_data},
-
-	{},
-};
-
-#define MAX_IPCDEVS	24
-static struct platform_device *ipc_devs[MAX_IPCDEVS];
-static int ipc_next_dev;
-
-#define MAX_SCU_SPI	24
-static struct spi_board_info *spi_devs[MAX_SCU_SPI];
-static int spi_next_dev;
-
-#define MAX_SCU_I2C	24
-static struct i2c_board_info *i2c_devs[MAX_SCU_I2C];
-static int i2c_bus[MAX_SCU_I2C];
-static int i2c_next_dev;
-
-static void __init intel_scu_device_register(struct platform_device *pdev)
-{
-	if (ipc_next_dev == MAX_IPCDEVS)
-		pr_err("too many SCU IPC devices");
-	else
-		ipc_devs[ipc_next_dev++] = pdev;
-}
-
-static void __init intel_scu_spi_device_register(struct spi_board_info *sdev)
-{
-	struct spi_board_info *new_dev;
-
-	if (spi_next_dev == MAX_SCU_SPI) {
-		pr_err("too many SCU SPI devices");
-		return;
-	}
-
-	new_dev = kzalloc(sizeof(*sdev), GFP_KERNEL);
-	if (!new_dev) {
-		pr_err("failed to alloc mem for delayed spi dev %s\n",
-			sdev->modalias);
-		return;
-	}
-	memcpy(new_dev, sdev, sizeof(*sdev));
-
-	spi_devs[spi_next_dev++] = new_dev;
-}
-
-static void __init intel_scu_i2c_device_register(int bus,
-						struct i2c_board_info *idev)
-{
-	struct i2c_board_info *new_dev;
-
-	if (i2c_next_dev == MAX_SCU_I2C) {
-		pr_err("too many SCU I2C devices");
-		return;
-	}
-
-	new_dev = kzalloc(sizeof(*idev), GFP_KERNEL);
-	if (!new_dev) {
-		pr_err("failed to alloc mem for delayed i2c dev %s\n",
-			idev->type);
-		return;
-	}
-	memcpy(new_dev, idev, sizeof(*idev));
-
-	i2c_bus[i2c_next_dev] = bus;
-	i2c_devs[i2c_next_dev++] = new_dev;
-}
-
-BLOCKING_NOTIFIER_HEAD(intel_scu_notifier);
-EXPORT_SYMBOL_GPL(intel_scu_notifier);
-
-/* Called by IPC driver */
-void intel_scu_devices_create(void)
-{
-	int i;
-
-	for (i = 0; i < ipc_next_dev; i++)
-		platform_device_add(ipc_devs[i]);
-
-	for (i = 0; i < spi_next_dev; i++)
-		spi_register_board_info(spi_devs[i], 1);
-
-	for (i = 0; i < i2c_next_dev; i++) {
-		struct i2c_adapter *adapter;
-		struct i2c_client *client;
-
-		adapter = i2c_get_adapter(i2c_bus[i]);
-		if (adapter) {
-			client = i2c_new_device(adapter, i2c_devs[i]);
-			if (!client)
-				pr_err("can't create i2c device %s\n",
-					i2c_devs[i]->type);
-		} else
-			i2c_register_board_info(i2c_bus[i], i2c_devs[i], 1);
-	}
-	intel_scu_notifier_post(SCU_AVAILABLE, NULL);
-}
-EXPORT_SYMBOL_GPL(intel_scu_devices_create);
-
-/* Called by IPC driver */
-void intel_scu_devices_destroy(void)
-{
-	int i;
-
-	intel_scu_notifier_post(SCU_DOWN, NULL);
-
-	for (i = 0; i < ipc_next_dev; i++)
-		platform_device_del(ipc_devs[i]);
-}
-EXPORT_SYMBOL_GPL(intel_scu_devices_destroy);
-
-static void __init install_irq_resource(struct platform_device *pdev, int irq)
-{
-	/* Single threaded */
-	static struct resource __initdata res = {
-		.name = "IRQ",
-		.flags = IORESOURCE_IRQ,
-	};
-	res.start = irq;
-	platform_device_add_resources(pdev, &res, 1);
-}
-
-static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *entry)
-{
-	const struct devs_id *dev = device_ids;
-	struct platform_device *pdev;
-	void *pdata = NULL;
-
-	while (dev->name[0]) {
-		if (dev->type == SFI_DEV_TYPE_IPC &&
-			!strncmp(dev->name, entry->name, SFI_NAME_LEN)) {
-			pdata = dev->get_platform_data(entry);
-			break;
-		}
-		dev++;
-	}
-
-	/*
-	 * On Medfield the platform device creation is handled by the MSIC
-	 * MFD driver so we don't need to do it here.
-	 */
-	if (mrst_has_msic())
-		return;
-
-	pdev = platform_device_alloc(entry->name, 0);
-	if (pdev == NULL) {
-		pr_err("out of memory for SFI platform device '%s'.\n",
-			entry->name);
-		return;
-	}
-	install_irq_resource(pdev, entry->irq);
-
-	pdev->dev.platform_data = pdata;
-	intel_scu_device_register(pdev);
-}
-
-static void __init sfi_handle_spi_dev(struct spi_board_info *spi_info)
-{
-	const struct devs_id *dev = device_ids;
-	void *pdata = NULL;
-
-	while (dev->name[0]) {
-		if (dev->type == SFI_DEV_TYPE_SPI &&
-			!strncmp(dev->name, spi_info->modalias,
-						SFI_NAME_LEN)) {
-			pdata = dev->get_platform_data(spi_info);
-			break;
-		}
-		dev++;
-	}
-	spi_info->platform_data = pdata;
-	if (dev->delay)
-		intel_scu_spi_device_register(spi_info);
-	else
-		spi_register_board_info(spi_info, 1);
-}
-
-static void __init sfi_handle_i2c_dev(int bus, struct i2c_board_info *i2c_info)
-{
-	const struct devs_id *dev = device_ids;
-	void *pdata = NULL;
-
-	while (dev->name[0]) {
-		if (dev->type == SFI_DEV_TYPE_I2C &&
-			!strncmp(dev->name, i2c_info->type, SFI_NAME_LEN)) {
-			pdata = dev->get_platform_data(i2c_info);
-			break;
-		}
-		dev++;
-	}
-	i2c_info->platform_data = pdata;
-
-	if (dev->delay)
-		intel_scu_i2c_device_register(bus, i2c_info);
-	else
-		i2c_register_board_info(bus, i2c_info, 1);
-}
-
-
-static int __init sfi_parse_devs(struct sfi_table_header *table)
-{
-	struct sfi_table_simple *sb;
-	struct sfi_device_table_entry *pentry;
-	struct spi_board_info spi_info;
-	struct i2c_board_info i2c_info;
-	int num, i, bus;
-	int ioapic;
-	struct io_apic_irq_attr irq_attr;
-
-	sb = (struct sfi_table_simple *)table;
-	num = SFI_GET_NUM_ENTRIES(sb, struct sfi_device_table_entry);
-	pentry = (struct sfi_device_table_entry *)sb->pentry;
-
-	for (i = 0; i < num; i++, pentry++) {
-		int irq = pentry->irq;
-
-		if (irq != (u8)0xff) { /* native RTE case */
-			/* these SPI2 devices are not exposed to system as PCI
-			 * devices, but they have separate RTE entry in IOAPIC
-			 * so we have to enable them one by one here
-			 */
-			ioapic = mp_find_ioapic(irq);
-			irq_attr.ioapic = ioapic;
-			irq_attr.ioapic_pin = irq;
-			irq_attr.trigger = 1;
-			irq_attr.polarity = 1;
-			io_apic_set_pci_routing(NULL, irq, &irq_attr);
-		} else
-			irq = 0; /* No irq */
-
-		switch (pentry->type) {
-		case SFI_DEV_TYPE_IPC:
-			pr_debug("info[%2d]: IPC bus, name = %16.16s, "
-				"irq = 0x%2x\n", i, pentry->name, pentry->irq);
-			sfi_handle_ipc_dev(pentry);
-			break;
-		case SFI_DEV_TYPE_SPI:
-			memset(&spi_info, 0, sizeof(spi_info));
-			strncpy(spi_info.modalias, pentry->name, SFI_NAME_LEN);
-			spi_info.irq = irq;
-			spi_info.bus_num = pentry->host_num;
-			spi_info.chip_select = pentry->addr;
-			spi_info.max_speed_hz = pentry->max_freq;
-			pr_debug("info[%2d]: SPI bus = %d, name = %16.16s, "
-				"irq = 0x%2x, max_freq = %d, cs = %d\n", i,
-				spi_info.bus_num,
-				spi_info.modalias,
-				spi_info.irq,
-				spi_info.max_speed_hz,
-				spi_info.chip_select);
-			sfi_handle_spi_dev(&spi_info);
-			break;
-		case SFI_DEV_TYPE_I2C:
-			memset(&i2c_info, 0, sizeof(i2c_info));
-			bus = pentry->host_num;
-			strncpy(i2c_info.type, pentry->name, SFI_NAME_LEN);
-			i2c_info.irq = irq;
-			i2c_info.addr = pentry->addr;
-			pr_debug("info[%2d]: I2C bus = %d, name = %16.16s, "
-				"irq = 0x%2x, addr = 0x%x\n", i, bus,
-				i2c_info.type,
-				i2c_info.irq,
-				i2c_info.addr);
-			sfi_handle_i2c_dev(bus, &i2c_info);
-			break;
-		case SFI_DEV_TYPE_UART:
-		case SFI_DEV_TYPE_HSI:
-		default:
-			;
-		}
-	}
-	return 0;
-}
-
-static int __init mrst_platform_init(void)
-{
-	sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, sfi_parse_gpio);
-	sfi_table_parse(SFI_SIG_DEVS, NULL, NULL, sfi_parse_devs);
-	return 0;
-}
-arch_initcall(mrst_platform_init);
-
-/*
- * we will search these buttons in SFI GPIO table (by name)
- * and register them dynamically. Please add all possible
- * buttons here, we will shrink them if no GPIO found.
- */
-static struct gpio_keys_button gpio_button[] = {
-	{KEY_POWER,		-1, 1, "power_btn",	EV_KEY, 0, 3000},
-	{KEY_PROG1,		-1, 1, "prog_btn1",	EV_KEY, 0, 20},
-	{KEY_PROG2,		-1, 1, "prog_btn2",	EV_KEY, 0, 20},
-	{SW_LID,		-1, 1, "lid_switch",	EV_SW,  0, 20},
-	{KEY_VOLUMEUP,		-1, 1, "vol_up",	EV_KEY, 0, 20},
-	{KEY_VOLUMEDOWN,	-1, 1, "vol_down",	EV_KEY, 0, 20},
-	{KEY_CAMERA,		-1, 1, "camera_full",	EV_KEY, 0, 20},
-	{KEY_CAMERA_FOCUS,	-1, 1, "camera_half",	EV_KEY, 0, 20},
-	{SW_KEYPAD_SLIDE,	-1, 1, "MagSw1",	EV_SW,  0, 20},
-	{SW_KEYPAD_SLIDE,	-1, 1, "MagSw2",	EV_SW,  0, 20},
-};
-
-static struct gpio_keys_platform_data mrst_gpio_keys = {
-	.buttons	= gpio_button,
-	.rep		= 1,
-	.nbuttons	= -1, /* will fill it after search */
-};
-
-static struct platform_device pb_device = {
-	.name		= "gpio-keys",
-	.id		= -1,
-	.dev		= {
-		.platform_data	= &mrst_gpio_keys,
-	},
-};
-
-/*
- * Shrink the non-existent buttons, register the gpio button
- * device if there is some
- */
-static int __init pb_keys_init(void)
-{
-	struct gpio_keys_button *gb = gpio_button;
-	int i, num, good = 0;
-
-	num = sizeof(gpio_button) / sizeof(struct gpio_keys_button);
-	for (i = 0; i < num; i++) {
-		gb[i].gpio = get_gpio_by_name(gb[i].desc);
-		pr_debug("info[%2d]: name = %s, gpio = %d\n", i, gb[i].desc,
-					gb[i].gpio);
-		if (gb[i].gpio == -1)
-			continue;
-
-		if (i != good)
-			gb[good] = gb[i];
-		good++;
-	}
-
-	if (good) {
-		mrst_gpio_keys.nbuttons = good;
-		return platform_device_register(&pb_device);
-	}
-	return 0;
-}
-late_initcall(pb_keys_init);
diff --git a/arch/x86/platform/mrst/vrtc.c b/arch/x86/platform/mrst/vrtc.c
deleted file mode 100644
index ca4f7d999fd1..000000000000
--- a/arch/x86/platform/mrst/vrtc.c
+++ /dev/null
@@ -1,177 +0,0 @@
-/*
- * vrtc.c: Driver for virtual RTC device on Intel MID platform
- *
- * (C) Copyright 2009 Intel Corporation
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; version 2
- * of the License.
- *
- * Note:
- * VRTC is emulated by system controller firmware, the real HW
- * RTC is located in the PMIC device. SCU FW shadows PMIC RTC
- * in a memory mapped IO space that is visible to the host IA
- * processor.
- *
- * This driver is based on RTC CMOS driver.
- */
-
-#include <linux/kernel.h>
-#include <linux/export.h>
-#include <linux/init.h>
-#include <linux/sfi.h>
-#include <linux/platform_device.h>
-
-#include <asm/mrst.h>
-#include <asm/mrst-vrtc.h>
-#include <asm/time.h>
-#include <asm/fixmap.h>
-
-static unsigned char __iomem *vrtc_virt_base;
-
-unsigned char vrtc_cmos_read(unsigned char reg)
-{
-	unsigned char retval;
-
-	/* vRTC's registers range from 0x0 to 0xD */
-	if (reg > 0xd || !vrtc_virt_base)
-		return 0xff;
-
-	lock_cmos_prefix(reg);
-	retval = __raw_readb(vrtc_virt_base + (reg << 2));
-	lock_cmos_suffix(reg);
-	return retval;
-}
-EXPORT_SYMBOL_GPL(vrtc_cmos_read);
-
-void vrtc_cmos_write(unsigned char val, unsigned char reg)
-{
-	if (reg > 0xd || !vrtc_virt_base)
-		return;
-
-	lock_cmos_prefix(reg);
-	__raw_writeb(val, vrtc_virt_base + (reg << 2));
-	lock_cmos_suffix(reg);
-}
-EXPORT_SYMBOL_GPL(vrtc_cmos_write);
-
-void vrtc_get_time(struct timespec *now)
-{
-	u8 sec, min, hour, mday, mon;
-	unsigned long flags;
-	u32 year;
-
-	spin_lock_irqsave(&rtc_lock, flags);
-
-	while ((vrtc_cmos_read(RTC_FREQ_SELECT) & RTC_UIP))
-		cpu_relax();
-
-	sec = vrtc_cmos_read(RTC_SECONDS);
-	min = vrtc_cmos_read(RTC_MINUTES);
-	hour = vrtc_cmos_read(RTC_HOURS);
-	mday = vrtc_cmos_read(RTC_DAY_OF_MONTH);
-	mon = vrtc_cmos_read(RTC_MONTH);
-	year = vrtc_cmos_read(RTC_YEAR);
-
-	spin_unlock_irqrestore(&rtc_lock, flags);
-
-	/* vRTC YEAR reg contains the offset to 1972 */
-	year += 1972;
-
-	pr_info("vRTC: sec: %d min: %d hour: %d day: %d "
-		"mon: %d year: %d\n", sec, min, hour, mday, mon, year);
-
-	now->tv_sec = mktime(year, mon, mday, hour, min, sec);
-	now->tv_nsec = 0;
-}
-
-int vrtc_set_mmss(const struct timespec *now)
-{
-	unsigned long flags;
-	struct rtc_time tm;
-	int year;
-	int retval = 0;
-
-	rtc_time_to_tm(now->tv_sec, &tm);
-	if (!rtc_valid_tm(&tm) && tm.tm_year >= 72) {
-		/*
-		 * tm.year is the number of years since 1900, and the
-		 * vrtc need the years since 1972.
-		 */
-		year = tm.tm_year - 72;
-		spin_lock_irqsave(&rtc_lock, flags);
-		vrtc_cmos_write(year, RTC_YEAR);
-		vrtc_cmos_write(tm.tm_mon, RTC_MONTH);
-		vrtc_cmos_write(tm.tm_mday, RTC_DAY_OF_MONTH);
-		vrtc_cmos_write(tm.tm_hour, RTC_HOURS);
-		vrtc_cmos_write(tm.tm_min, RTC_MINUTES);
-		vrtc_cmos_write(tm.tm_sec, RTC_SECONDS);
-		spin_unlock_irqrestore(&rtc_lock, flags);
-	} else {
-		pr_err("%s: Invalid vRTC value: write of %lx to vRTC failed\n",
-			__FUNCTION__, now->tv_sec);
-		retval = -EINVAL;
-	}
-	return retval;
-}
-
-void __init mrst_rtc_init(void)
-{
-	unsigned long vrtc_paddr;
-
-	sfi_table_parse(SFI_SIG_MRTC, NULL, NULL, sfi_parse_mrtc);
-
-	vrtc_paddr = sfi_mrtc_array[0].phys_addr;
-	if (!sfi_mrtc_num || !vrtc_paddr)
-		return;
-
-	vrtc_virt_base = (void __iomem *)set_fixmap_offset_nocache(FIX_LNW_VRTC,
-								vrtc_paddr);
-	x86_platform.get_wallclock = vrtc_get_time;
-	x86_platform.set_wallclock = vrtc_set_mmss;
-}
-
-/*
- * The Moorestown platform has a memory mapped virtual RTC device that emulates
- * the programming interface of the RTC.
- */
-
-static struct resource vrtc_resources[] = {
-	[0] = {
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.flags	= IORESOURCE_IRQ,
-	}
-};
-
-static struct platform_device vrtc_device = {
-	.name		= "rtc_mrst",
-	.id		= -1,
-	.resource	= vrtc_resources,
-	.num_resources	= ARRAY_SIZE(vrtc_resources),
-};
-
-/* Register the RTC device if appropriate */
-static int __init mrst_device_create(void)
-{
-	/* No Moorestown, no device */
-	if (!mrst_identify_cpu())
-		return -ENODEV;
-	/* No timer, no device */
-	if (!sfi_mrtc_num)
-		return -ENODEV;
-
-	/* iomem resource */
-	vrtc_resources[0].start = sfi_mrtc_array[0].phys_addr;
-	vrtc_resources[0].end = sfi_mrtc_array[0].phys_addr +
-				MRST_VRTC_MAP_SZ;
-	/* irq resource */
-	vrtc_resources[1].start = sfi_mrtc_array[0].irq;
-	vrtc_resources[1].end = sfi_mrtc_array[0].irq;
-
-	return platform_device_register(&vrtc_device);
-}
-
-module_init(mrst_device_create);
diff --git a/drivers/gpu/drm/gma500/mdfld_dsi_output.h b/drivers/gpu/drm/gma500/mdfld_dsi_output.h
index 45d5af0546bf..5b646c1f0c3e 100644
--- a/drivers/gpu/drm/gma500/mdfld_dsi_output.h
+++ b/drivers/gpu/drm/gma500/mdfld_dsi_output.h
@@ -39,7 +39,7 @@
 #include "psb_intel_reg.h"
 #include "mdfld_output.h"
 
-#include <asm/mrst.h>
+#include <asm/intel-mid.h>
 
 #define FLD_MASK(start, end)	(((1 << ((start) - (end) + 1)) - 1) << (end))
 #define FLD_VAL(val, start, end) (((val) << (end)) & FLD_MASK(start, end))
diff --git a/drivers/gpu/drm/gma500/oaktrail_device.c b/drivers/gpu/drm/gma500/oaktrail_device.c
index 08747fd7105c..7a9ce000fd86 100644
--- a/drivers/gpu/drm/gma500/oaktrail_device.c
+++ b/drivers/gpu/drm/gma500/oaktrail_device.c
@@ -26,7 +26,7 @@
 #include "psb_drv.h"
 #include "psb_reg.h"
 #include "psb_intel_reg.h"
-#include <asm/mrst.h>
+#include <asm/intel-mid.h>
 #include <asm/intel_scu_ipc.h>
 #include "mid_bios.h"
 #include "intel_bios.h"
diff --git a/drivers/gpu/drm/gma500/oaktrail_lvds.c b/drivers/gpu/drm/gma500/oaktrail_lvds.c
index e77d7214fca4..3ece553311fe 100644
--- a/drivers/gpu/drm/gma500/oaktrail_lvds.c
+++ b/drivers/gpu/drm/gma500/oaktrail_lvds.c
@@ -22,7 +22,7 @@
 
 #include <linux/i2c.h>
 #include <drm/drmP.h>
-#include <asm/mrst.h>
+#include <asm/intel-mid.h>
 
 #include "intel_bios.h"
 #include "psb_drv.h"
diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
index 9215ed72bece..5f8f6c91596c 100644
--- a/drivers/platform/x86/intel_scu_ipc.c
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -25,7 +25,7 @@
 #include <linux/interrupt.h>
 #include <linux/sfi.h>
 #include <linux/module.h>
-#include <asm/mrst.h>
+#include <asm/intel-mid.h>
 #include <asm/intel_scu_ipc.h>
 
 /* IPC defines the following message types */
diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c
index 578baf9d9725..315209d9b407 100644
--- a/drivers/rtc/rtc-mrst.c
+++ b/drivers/rtc/rtc-mrst.c
@@ -38,8 +38,8 @@
 
 #include <asm-generic/rtc.h>
 #include <asm/intel_scu_ipc.h>
-#include <asm/mrst.h>
-#include <asm/mrst-vrtc.h>
+#include <asm/intel-mid.h>
+#include <asm/intel_mid_vrtc.h>
 
 struct mrst_rtc {
 	struct rtc_device	*rtc;
diff --git a/drivers/watchdog/intel_scu_watchdog.c b/drivers/watchdog/intel_scu_watchdog.c
index 9dda2d08af91..07964d82123a 100644
--- a/drivers/watchdog/intel_scu_watchdog.c
+++ b/drivers/watchdog/intel_scu_watchdog.c
@@ -48,7 +48,7 @@
 #include <linux/atomic.h>
 #include <asm/intel_scu_ipc.h>
 #include <asm/apb_timer.h>
-#include <asm/mrst.h>
+#include <asm/intel-mid.h>
 
 #include "intel_scu_watchdog.h"
 
-- 
cgit 


From 6c21b176a93ffaa8023555107167379ccdc6b71f Mon Sep 17 00:00:00 2001
From: Fengguang Wu <fengguang.wu@intel.com>
Date: Thu, 17 Oct 2013 15:35:28 -0700
Subject: pci: intel_mid: Return true/false in function returning bool

Function 'type1_access_ok' should return bool value, not 0/1.
This patch changes 'return 0/1' to 'return false/true'.

Cc: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Cc: H. Peter Anvin <hpa@linux.intel.com>
Cc: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Link: http://lkml.kernel.org/r/1382049336-21316-5-git-send-email-david.a.cohen@linux.intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/pci/intel_mid_pci.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c
index f8715f7c43c7..c5ca5b997f5a 100644
--- a/arch/x86/pci/intel_mid_pci.c
+++ b/arch/x86/pci/intel_mid_pci.c
@@ -150,12 +150,12 @@ static bool type1_access_ok(unsigned int bus, unsigned int devfn, int reg)
 	 * shim. Therefore, use the header type in shim instead.
 	 */
 	if (reg >= 0x100 || reg == PCI_STATUS || reg == PCI_HEADER_TYPE)
-		return 0;
+		return false;
 	if (bus == 0 && (devfn == PCI_DEVFN(2, 0)
 				|| devfn == PCI_DEVFN(0, 0)
 				|| devfn == PCI_DEVFN(3, 0)))
-		return 1;
-	return 0; /* Langwell on others */
+		return true;
+	return false; /* Langwell on others */
 }
 
 static int pci_read(struct pci_bus *bus, unsigned int devfn, int where,
-- 
cgit 


From 712b6aa8731a7e148298c58cea66a5209c659e3c Mon Sep 17 00:00:00 2001
From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Date: Thu, 17 Oct 2013 15:35:29 -0700
Subject: intel_mid: Renamed *mrst* to *intel_mid*

mrst is used as common name to represent all intel_mid type
soc's. But moorsetwon is just one of the intel_mid soc. So
renamed them to use intel_mid.

This patch mainly renames the variables and related
functions that uses *mrst* prefix with *intel_mid*.

To ensure that there are no functional changes, I have compared
the objdump of related files before and after rename and found
the only difference is symbol and name changes.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: http://lkml.kernel.org/r/1382049336-21316-6-git-send-email-david.a.cohen@linux.intel.com
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 Documentation/kernel-parameters.txt                |   6 +-
 arch/x86/include/asm/intel-mid.h                   |  26 ++---
 arch/x86/include/asm/setup.h                       |   4 +-
 arch/x86/include/uapi/asm/bootparam.h              |   2 +-
 arch/x86/kernel/apb_timer.c                        |   8 +-
 arch/x86/kernel/head32.c                           |   4 +-
 arch/x86/kernel/rtc.c                              |   2 +-
 arch/x86/pci/intel_mid_pci.c                       |  12 +--
 .../platform/intel-mid/early_printk_intel_mid.c    |   2 +-
 arch/x86/platform/intel-mid/intel-mid.c            | 109 ++++++++++-----------
 arch/x86/platform/intel-mid/intel_mid_vrtc.c       |   8 +-
 drivers/platform/x86/intel_scu_ipc.c               |   2 +-
 drivers/watchdog/intel_scu_watchdog.c              |   2 +-
 13 files changed, 93 insertions(+), 94 deletions(-)

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index fcbb736d55fe..dfaeb0c65f88 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -3471,11 +3471,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			default x2apic cluster mode on platforms
 			supporting x2apic.
 
-	x86_mrst_timer= [X86-32,APBT]
-			Choose timer option for x86 Moorestown MID platform.
+	x86_intel_mid_timer= [X86-32,APBT]
+			Choose timer option for x86 Intel MID platform.
 			Two valid options are apbt timer only and lapic timer
 			plus one apbt timer for broadcast timer.
-			x86_mrst_timer=apbt_only | lapic_and_apbt
+			x86_intel_mid_timer=apbt_only | lapic_and_apbt
 
 	xen_emul_unplug=		[HW,X86,XEN]
 			Unplug Xen emulated devices
diff --git a/arch/x86/include/asm/intel-mid.h b/arch/x86/include/asm/intel-mid.h
index cc79a4f7aeed..beb7a5f1862a 100644
--- a/arch/x86/include/asm/intel-mid.h
+++ b/arch/x86/include/asm/intel-mid.h
@@ -13,7 +13,7 @@
 
 #include <linux/sfi.h>
 
-extern int pci_mrst_init(void);
+extern int intel_mid_pci_init(void);
 extern int __init sfi_parse_mrtc(struct sfi_table_header *table);
 extern int sfi_mrtc_num;
 extern struct sfi_rtc_table_entry sfi_mrtc_array[];
@@ -25,33 +25,33 @@ extern struct sfi_rtc_table_entry sfi_mrtc_array[];
  * we treat Medfield/Penwell as a variant of Moorestown. Penwell can be
  * identified via MSRs.
  */
-enum mrst_cpu_type {
+enum intel_mid_cpu_type {
 	/* 1 was Moorestown */
-	MRST_CPU_CHIP_PENWELL = 2,
+	INTEL_MID_CPU_CHIP_PENWELL = 2,
 };
 
-extern enum mrst_cpu_type __mrst_cpu_chip;
+extern enum intel_mid_cpu_type __intel_mid_cpu_chip;
 
 #ifdef CONFIG_X86_INTEL_MID
 
-static inline enum mrst_cpu_type mrst_identify_cpu(void)
+static inline enum intel_mid_cpu_type intel_mid_identify_cpu(void)
 {
-	return __mrst_cpu_chip;
+	return __intel_mid_cpu_chip;
 }
 
 #else /* !CONFIG_X86_INTEL_MID */
 
-#define mrst_identify_cpu()    (0)
+#define intel_mid_identify_cpu()    (0)
 
 #endif /* !CONFIG_X86_INTEL_MID */
 
-enum mrst_timer_options {
-	MRST_TIMER_DEFAULT,
-	MRST_TIMER_APBT_ONLY,
-	MRST_TIMER_LAPIC_APBT,
+enum intel_mid_timer_options {
+	INTEL_MID_TIMER_DEFAULT,
+	INTEL_MID_TIMER_APBT_ONLY,
+	INTEL_MID_TIMER_LAPIC_APBT,
 };
 
-extern enum mrst_timer_options mrst_timer_options;
+extern enum intel_mid_timer_options intel_mid_timer_options;
 
 /*
  * Penwell uses spread spectrum clock, so the freq number is not exactly
@@ -76,6 +76,6 @@ extern void intel_scu_devices_destroy(void);
 #define MRST_VRTC_MAP_SZ	(1024)
 /*#define MRST_VRTC_PGOFFSET	(0xc00) */
 
-extern void mrst_rtc_init(void);
+extern void intel_mid_rtc_init(void);
 
 #endif /* _ASM_X86_INTEL_MID_H */
diff --git a/arch/x86/include/asm/setup.h b/arch/x86/include/asm/setup.h
index 347555492dad..59bcf4e22418 100644
--- a/arch/x86/include/asm/setup.h
+++ b/arch/x86/include/asm/setup.h
@@ -51,9 +51,9 @@ extern void i386_reserve_resources(void);
 extern void setup_default_timer_irq(void);
 
 #ifdef CONFIG_X86_INTEL_MID
-extern void x86_mrst_early_setup(void);
+extern void x86_intel_mid_early_setup(void);
 #else
-static inline void x86_mrst_early_setup(void) { }
+static inline void x86_intel_mid_early_setup(void) { }
 #endif
 
 #ifdef CONFIG_X86_INTEL_CE
diff --git a/arch/x86/include/uapi/asm/bootparam.h b/arch/x86/include/uapi/asm/bootparam.h
index c15ddaf90710..9c3733c5f8f7 100644
--- a/arch/x86/include/uapi/asm/bootparam.h
+++ b/arch/x86/include/uapi/asm/bootparam.h
@@ -158,7 +158,7 @@ enum {
 	X86_SUBARCH_PC = 0,
 	X86_SUBARCH_LGUEST,
 	X86_SUBARCH_XEN,
-	X86_SUBARCH_MRST,
+	X86_SUBARCH_INTEL_MID,
 	X86_SUBARCH_CE4100,
 	X86_NR_SUBARCHS,
 };
diff --git a/arch/x86/kernel/apb_timer.c b/arch/x86/kernel/apb_timer.c
index 915483604c0c..af5b08ab3b71 100644
--- a/arch/x86/kernel/apb_timer.c
+++ b/arch/x86/kernel/apb_timer.c
@@ -157,13 +157,13 @@ static int __init apbt_clockevent_register(void)
 
 	adev->num = smp_processor_id();
 	adev->timer = dw_apb_clockevent_init(smp_processor_id(), "apbt0",
-		mrst_timer_options == MRST_TIMER_LAPIC_APBT ?
+		intel_mid_timer_options == INTEL_MID_TIMER_LAPIC_APBT ?
 		APBT_CLOCKEVENT_RATING - 100 : APBT_CLOCKEVENT_RATING,
 		adev_virt_addr(adev), 0, apbt_freq);
 	/* Firmware does EOI handling for us. */
 	adev->timer->eoi = NULL;
 
-	if (mrst_timer_options == MRST_TIMER_LAPIC_APBT) {
+	if (intel_mid_timer_options == INTEL_MID_TIMER_LAPIC_APBT) {
 		global_clock_event = &adev->timer->ced;
 		printk(KERN_DEBUG "%s clockevent registered as global\n",
 		       global_clock_event->name);
@@ -253,7 +253,7 @@ static int apbt_cpuhp_notify(struct notifier_block *n,
 
 static __init int apbt_late_init(void)
 {
-	if (mrst_timer_options == MRST_TIMER_LAPIC_APBT ||
+	if (intel_mid_timer_options == INTEL_MID_TIMER_LAPIC_APBT ||
 		!apb_timer_block_enabled)
 		return 0;
 	/* This notifier should be called after workqueue is ready */
@@ -340,7 +340,7 @@ void __init apbt_time_init(void)
 	}
 #ifdef CONFIG_SMP
 	/* kernel cmdline disable apb timer, so we will use lapic timers */
-	if (mrst_timer_options == MRST_TIMER_LAPIC_APBT) {
+	if (intel_mid_timer_options == INTEL_MID_TIMER_LAPIC_APBT) {
 		printk(KERN_INFO "apbt: disabled per cpu timer\n");
 		return;
 	}
diff --git a/arch/x86/kernel/head32.c b/arch/x86/kernel/head32.c
index 06f87bece92a..c61a14a4a310 100644
--- a/arch/x86/kernel/head32.c
+++ b/arch/x86/kernel/head32.c
@@ -35,8 +35,8 @@ asmlinkage void __init i386_start_kernel(void)
 
 	/* Call the subarch specific early setup function */
 	switch (boot_params.hdr.hardware_subarch) {
-	case X86_SUBARCH_MRST:
-		x86_mrst_early_setup();
+	case X86_SUBARCH_INTEL_MID:
+		x86_intel_mid_early_setup();
 		break;
 	case X86_SUBARCH_CE4100:
 		x86_ce4100_early_setup();
diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
index a1b52fe77995..e35cb18b8a00 100644
--- a/arch/x86/kernel/rtc.c
+++ b/arch/x86/kernel/rtc.c
@@ -189,7 +189,7 @@ static __init int add_rtc_cmos(void)
 		return 0;
 
 	/* Intel MID platforms don't have ioport rtc */
-	if (mrst_identify_cpu())
+	if (intel_mid_identify_cpu())
 		return -ENODEV;
 
 	platform_device_register(&rtc_device);
diff --git a/arch/x86/pci/intel_mid_pci.c b/arch/x86/pci/intel_mid_pci.c
index c5ca5b997f5a..51384ca727ad 100644
--- a/arch/x86/pci/intel_mid_pci.c
+++ b/arch/x86/pci/intel_mid_pci.c
@@ -205,7 +205,7 @@ static int pci_write(struct pci_bus *bus, unsigned int devfn, int where,
 			       where, size, value);
 }
 
-static int mrst_pci_irq_enable(struct pci_dev *dev)
+static int intel_mid_pci_irq_enable(struct pci_dev *dev)
 {
 	u8 pin;
 	struct io_apic_irq_attr irq_attr;
@@ -225,23 +225,23 @@ static int mrst_pci_irq_enable(struct pci_dev *dev)
 	return 0;
 }
 
-struct pci_ops pci_mrst_ops = {
+struct pci_ops intel_mid_pci_ops = {
 	.read = pci_read,
 	.write = pci_write,
 };
 
 /**
- * pci_mrst_init - installs pci_mrst_ops
+ * intel_mid_pci_init - installs intel_mid_pci_ops
  *
  * Moorestown has an interesting PCI implementation (see above).
  * Called when the early platform detection installs it.
  */
-int __init pci_mrst_init(void)
+int __init intel_mid_pci_init(void)
 {
 	pr_info("Intel MID platform detected, using MID PCI ops\n");
 	pci_mmcfg_late_init();
-	pcibios_enable_irq = mrst_pci_irq_enable;
-	pci_root_ops = pci_mrst_ops;
+	pcibios_enable_irq = intel_mid_pci_irq_enable;
+	pci_root_ops = intel_mid_pci_ops;
 	pci_soc_mode = 1;
 	/* Continue with standard init */
 	return 1;
diff --git a/arch/x86/platform/intel-mid/early_printk_intel_mid.c b/arch/x86/platform/intel-mid/early_printk_intel_mid.c
index 7c56e706fbee..4f702f554f6e 100644
--- a/arch/x86/platform/intel-mid/early_printk_intel_mid.c
+++ b/arch/x86/platform/intel-mid/early_printk_intel_mid.c
@@ -152,7 +152,7 @@ void mrst_early_console_init(void)
 	spi0_cdiv = ((*pclk_spi0) & 0xe00) >> 9;
 	freq = 100000000 / (spi0_cdiv + 1);
 
-	if (mrst_identify_cpu() == MRST_CPU_CHIP_PENWELL)
+	if (intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_PENWELL)
 		mrst_spi_paddr = MRST_REGBASE_SPI1;
 
 	pspi = (void *)set_fixmap_offset_nocache(FIX_EARLYCON_MEM_BASE,
diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index 7e6d7b204a05..94689ac55374 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -11,7 +11,7 @@
  * of the License.
  */
 
-#define pr_fmt(fmt) "mrst: " fmt
+#define pr_fmt(fmt) "intel_mid: " fmt
 
 #include <linux/init.h>
 #include <linux/kernel.h>
@@ -47,7 +47,7 @@
 
 /*
  * the clockevent devices on Moorestown/Medfield can be APBT or LAPIC clock,
- * cmdline option x86_mrst_timer can be used to override the configuration
+ * cmdline option x86_intel_mid_timer can be used to override the configuration
  * to prefer one or the other.
  * at runtime, there are basically three timer configurations:
  * 1. per cpu apbt clock only
@@ -66,12 +66,12 @@
  * lapic (always-on,ARAT) ------ 150
  */
 
-enum mrst_timer_options mrst_timer_options;
+enum intel_mid_timer_options intel_mid_timer_options;
 
 static u32 sfi_mtimer_usage[SFI_MTMR_MAX_NUM];
 static struct sfi_timer_table_entry sfi_mtimer_array[SFI_MTMR_MAX_NUM];
-enum mrst_cpu_type __mrst_cpu_chip;
-EXPORT_SYMBOL_GPL(__mrst_cpu_chip);
+enum intel_mid_cpu_type __intel_mid_cpu_chip;
+EXPORT_SYMBOL_GPL(__intel_mid_cpu_chip);
 
 int sfi_mtimer_num;
 
@@ -79,11 +79,11 @@ struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX];
 EXPORT_SYMBOL_GPL(sfi_mrtc_array);
 int sfi_mrtc_num;
 
-static void mrst_power_off(void)
+static void intel_mid_power_off(void)
 {
 }
 
-static void mrst_reboot(void)
+static void intel_mid_reboot(void)
 {
 	intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
 }
@@ -196,7 +196,7 @@ int __init sfi_parse_mrtc(struct sfi_table_header *table)
 	return 0;
 }
 
-static unsigned long __init mrst_calibrate_tsc(void)
+static unsigned long __init intel_mid_calibrate_tsc(void)
 {
 	unsigned long fast_calibrate;
 	u32 lo, hi, ratio, fsb;
@@ -227,13 +227,13 @@ static unsigned long __init mrst_calibrate_tsc(void)
 	return 0;
 }
 
-static void __init mrst_time_init(void)
+static void __init intel_mid_time_init(void)
 {
 	sfi_table_parse(SFI_SIG_MTMR, NULL, NULL, sfi_parse_mtmr);
-	switch (mrst_timer_options) {
-	case MRST_TIMER_APBT_ONLY:
+	switch (intel_mid_timer_options) {
+	case INTEL_MID_TIMER_APBT_ONLY:
 		break;
-	case MRST_TIMER_LAPIC_APBT:
+	case INTEL_MID_TIMER_LAPIC_APBT:
 		x86_init.timers.setup_percpu_clockev = setup_boot_APIC_clock;
 		x86_cpuinit.setup_percpu_clockev = setup_secondary_APIC_clock;
 		break;
@@ -249,19 +249,19 @@ static void __init mrst_time_init(void)
 	apbt_time_init();
 }
 
-static void mrst_arch_setup(void)
+static void __cpuinit intel_mid_arch_setup(void)
 {
 	if (boot_cpu_data.x86 == 6 && boot_cpu_data.x86_model == 0x27)
-		__mrst_cpu_chip = MRST_CPU_CHIP_PENWELL;
+		__intel_mid_cpu_chip = INTEL_MID_CPU_CHIP_PENWELL;
 	else {
 		pr_err("Unknown Intel MID CPU (%d:%d), default to Penwell\n",
 			boot_cpu_data.x86, boot_cpu_data.x86_model);
-		__mrst_cpu_chip = MRST_CPU_CHIP_PENWELL;
+		__intel_mid_cpu_chip = INTEL_MID_CPU_CHIP_PENWELL;
 	}
 }
 
 /* MID systems don't have i8042 controller */
-static int mrst_i8042_detect(void)
+static int intel_mid_i8042_detect(void)
 {
 	return 0;
 }
@@ -272,7 +272,7 @@ static int mrst_i8042_detect(void)
  * watchdog or lock debug. Reading io port 0x61 results in 0xff which
  * misled NMI handler.
  */
-static unsigned char mrst_get_nmi_reason(void)
+static unsigned char intel_mid_get_nmi_reason(void)
 {
 	return 0;
 }
@@ -281,33 +281,32 @@ static unsigned char mrst_get_nmi_reason(void)
  * Moorestown specific x86_init function overrides and early setup
  * calls.
  */
-void __init x86_mrst_early_setup(void)
+void __init x86_intel_mid_early_setup(void)
 {
 	x86_init.resources.probe_roms = x86_init_noop;
 	x86_init.resources.reserve_resources = x86_init_noop;
 
-	x86_init.timers.timer_init = mrst_time_init;
+	x86_init.timers.timer_init = intel_mid_time_init;
 	x86_init.timers.setup_percpu_clockev = x86_init_noop;
 
 	x86_init.irqs.pre_vector_init = x86_init_noop;
 
-	x86_init.oem.arch_setup = mrst_arch_setup;
+	x86_init.oem.arch_setup = intel_mid_arch_setup;
 
 	x86_cpuinit.setup_percpu_clockev = apbt_setup_secondary_clock;
 
-	x86_platform.calibrate_tsc = mrst_calibrate_tsc;
-	x86_platform.i8042_detect = mrst_i8042_detect;
-	x86_init.timers.wallclock_init = mrst_rtc_init;
-	x86_platform.get_nmi_reason = mrst_get_nmi_reason;
+	x86_platform.calibrate_tsc = intel_mid_calibrate_tsc;
+	x86_platform.i8042_detect = intel_mid_i8042_detect;
+	x86_init.timers.wallclock_init = intel_mid_rtc_init;
+	x86_platform.get_nmi_reason = intel_mid_get_nmi_reason;
 
-	x86_init.pci.init = pci_mrst_init;
+	x86_init.pci.init = intel_mid_pci_init;
 	x86_init.pci.fixup_irqs = x86_init_noop;
 
 	legacy_pic = &null_legacy_pic;
 
-	/* Moorestown specific power_off/restart method */
-	pm_power_off = mrst_power_off;
-	machine_ops.emergency_restart  = mrst_reboot;
+	pm_power_off = intel_mid_power_off;
+	machine_ops.emergency_restart  = intel_mid_reboot;
 
 	/* Avoid searching for BIOS MP tables */
 	x86_init.mpparse.find_smp_config = x86_init_noop;
@@ -319,24 +318,24 @@ void __init x86_mrst_early_setup(void)
  * if user does not want to use per CPU apb timer, just give it a lower rating
  * than local apic timer and skip the late per cpu timer init.
  */
-static inline int __init setup_x86_mrst_timer(char *arg)
+static inline int __init setup_x86_intel_mid_timer(char *arg)
 {
 	if (!arg)
 		return -EINVAL;
 
 	if (strcmp("apbt_only", arg) == 0)
-		mrst_timer_options = MRST_TIMER_APBT_ONLY;
+		intel_mid_timer_options = INTEL_MID_TIMER_APBT_ONLY;
 	else if (strcmp("lapic_and_apbt", arg) == 0)
-		mrst_timer_options = MRST_TIMER_LAPIC_APBT;
+		intel_mid_timer_options = INTEL_MID_TIMER_LAPIC_APBT;
 	else {
-		pr_warn("X86 MRST timer option %s not recognised"
-			   " use x86_mrst_timer=apbt_only or lapic_and_apbt\n",
+		pr_warn("X86 INTEL_MID timer option %s not recognised"
+			   " use x86_intel_mid_timer=apbt_only or lapic_and_apbt\n",
 			   arg);
 		return -EINVAL;
 	}
 	return 0;
 }
-__setup("x86_mrst_timer=", setup_x86_mrst_timer);
+__setup("x86_intel_mid_timer=", setup_x86_intel_mid_timer);
 
 /*
  * Parsing GPIO table first, since the DEVS table will need this table
@@ -400,7 +399,7 @@ struct devs_id {
 };
 
 /* the offset for the mapping of global gpio pin to irq */
-#define MRST_IRQ_OFFSET 0x100
+#define INTEL_MID_IRQ_OFFSET 0x100
 
 static void __init *pmic_gpio_platform_data(void *info)
 {
@@ -410,7 +409,7 @@ static void __init *pmic_gpio_platform_data(void *info)
 	if (gpio_base == -1)
 		gpio_base = 64;
 	pmic_gpio_pdata.gpio_base = gpio_base;
-	pmic_gpio_pdata.irq_base = gpio_base + MRST_IRQ_OFFSET;
+	pmic_gpio_pdata.irq_base = gpio_base + INTEL_MID_IRQ_OFFSET;
 	pmic_gpio_pdata.gpiointr = 0xffffeff8;
 
 	return &pmic_gpio_pdata;
@@ -424,7 +423,7 @@ static void __init *max3111_platform_data(void *info)
 	spi_info->mode = SPI_MODE_0;
 	if (intr == -1)
 		return NULL;
-	spi_info->irq = intr + MRST_IRQ_OFFSET;
+	spi_info->irq = intr + INTEL_MID_IRQ_OFFSET;
 	return NULL;
 }
 
@@ -464,8 +463,8 @@ static void __init *max7315_platform_data(void *info)
 		return NULL;
 	max7315->gpio_base = gpio_base;
 	if (intr != -1) {
-		i2c_info->irq = intr + MRST_IRQ_OFFSET;
-		max7315->irq_base = gpio_base + MRST_IRQ_OFFSET;
+		i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
+		max7315->irq_base = gpio_base + INTEL_MID_IRQ_OFFSET;
 	} else {
 		i2c_info->irq = -1;
 		max7315->irq_base = -1;
@@ -492,8 +491,8 @@ static void *tca6416_platform_data(void *info)
 		return NULL;
 	tca6416.gpio_base = gpio_base;
 	if (intr != -1) {
-		i2c_info->irq = intr + MRST_IRQ_OFFSET;
-		tca6416.irq_base = gpio_base + MRST_IRQ_OFFSET;
+		i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
+		tca6416.irq_base = gpio_base + INTEL_MID_IRQ_OFFSET;
 	} else {
 		i2c_info->irq = -1;
 		tca6416.irq_base = -1;
@@ -509,7 +508,7 @@ static void *mpu3050_platform_data(void *info)
 	if (intr == -1)
 		return NULL;
 
-	i2c_info->irq = intr + MRST_IRQ_OFFSET;
+	i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
 	return NULL;
 }
 
@@ -523,8 +522,8 @@ static void __init *emc1403_platform_data(void *info)
 	if (intr == -1 || intr2nd == -1)
 		return NULL;
 
-	i2c_info->irq = intr + MRST_IRQ_OFFSET;
-	intr2nd_pdata = intr2nd + MRST_IRQ_OFFSET;
+	i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
+	intr2nd_pdata = intr2nd + INTEL_MID_IRQ_OFFSET;
 
 	return &intr2nd_pdata;
 }
@@ -539,8 +538,8 @@ static void __init *lis331dl_platform_data(void *info)
 	if (intr == -1 || intr2nd == -1)
 		return NULL;
 
-	i2c_info->irq = intr + MRST_IRQ_OFFSET;
-	intr2nd_pdata = intr2nd + MRST_IRQ_OFFSET;
+	i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
+	intr2nd_pdata = intr2nd + INTEL_MID_IRQ_OFFSET;
 
 	return &intr2nd_pdata;
 }
@@ -570,9 +569,9 @@ static struct platform_device msic_device = {
 	.resource	= msic_resources,
 };
 
-static inline bool mrst_has_msic(void)
+static inline bool intel_mid_has_msic(void)
 {
-	return mrst_identify_cpu() == MRST_CPU_CHIP_PENWELL;
+	return intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_PENWELL;
 }
 
 static int msic_scu_status_change(struct notifier_block *nb,
@@ -596,7 +595,7 @@ static int __init msic_init(void)
 	 * We need to be sure that the SCU IPC is ready before MSIC device
 	 * can be registered.
 	 */
-	if (mrst_has_msic())
+	if (intel_mid_has_msic())
 		intel_scu_notifier_add(&msic_scu_notifier);
 
 	return 0;
@@ -851,7 +850,7 @@ static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *entry)
 	 * On Medfield the platform device creation is handled by the MSIC
 	 * MFD driver so we don't need to do it here.
 	 */
-	if (mrst_has_msic())
+	if (intel_mid_has_msic())
 		return;
 
 	pdev = platform_device_alloc(entry->name, 0);
@@ -984,13 +983,13 @@ static int __init sfi_parse_devs(struct sfi_table_header *table)
 	return 0;
 }
 
-static int __init mrst_platform_init(void)
+static int __init intel_mid_platform_init(void)
 {
 	sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, sfi_parse_gpio);
 	sfi_table_parse(SFI_SIG_DEVS, NULL, NULL, sfi_parse_devs);
 	return 0;
 }
-arch_initcall(mrst_platform_init);
+arch_initcall(intel_mid_platform_init);
 
 /*
  * we will search these buttons in SFI GPIO table (by name)
@@ -1010,7 +1009,7 @@ static struct gpio_keys_button gpio_button[] = {
 	{SW_KEYPAD_SLIDE,	-1, 1, "MagSw2",	EV_SW,  0, 20},
 };
 
-static struct gpio_keys_platform_data mrst_gpio_keys = {
+static struct gpio_keys_platform_data intel_mid_gpio_keys = {
 	.buttons	= gpio_button,
 	.rep		= 1,
 	.nbuttons	= -1, /* will fill it after search */
@@ -1020,7 +1019,7 @@ static struct platform_device pb_device = {
 	.name		= "gpio-keys",
 	.id		= -1,
 	.dev		= {
-		.platform_data	= &mrst_gpio_keys,
+		.platform_data	= &intel_mid_gpio_keys,
 	},
 };
 
@@ -1047,7 +1046,7 @@ static int __init pb_keys_init(void)
 	}
 
 	if (good) {
-		mrst_gpio_keys.nbuttons = good;
+		intel_mid_gpio_keys.nbuttons = good;
 		return platform_device_register(&pb_device);
 	}
 	return 0;
diff --git a/arch/x86/platform/intel-mid/intel_mid_vrtc.c b/arch/x86/platform/intel-mid/intel_mid_vrtc.c
index ded9fbd81996..4762cff7facd 100644
--- a/arch/x86/platform/intel-mid/intel_mid_vrtc.c
+++ b/arch/x86/platform/intel-mid/intel_mid_vrtc.c
@@ -116,7 +116,7 @@ int vrtc_set_mmss(const struct timespec *now)
 	return retval;
 }
 
-void __init mrst_rtc_init(void)
+void __init intel_mid_rtc_init(void)
 {
 	unsigned long vrtc_paddr;
 
@@ -154,10 +154,10 @@ static struct platform_device vrtc_device = {
 };
 
 /* Register the RTC device if appropriate */
-static int __init mrst_device_create(void)
+static int __init intel_mid_device_create(void)
 {
 	/* No Moorestown, no device */
-	if (!mrst_identify_cpu())
+	if (!intel_mid_identify_cpu())
 		return -ENODEV;
 	/* No timer, no device */
 	if (!sfi_mrtc_num)
@@ -174,4 +174,4 @@ static int __init mrst_device_create(void)
 	return platform_device_register(&vrtc_device);
 }
 
-module_init(mrst_device_create);
+module_init(intel_mid_device_create);
diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
index 5f8f6c91596c..d654f831410d 100644
--- a/drivers/platform/x86/intel_scu_ipc.c
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -579,7 +579,7 @@ static struct pci_driver ipc_driver = {
 
 static int __init intel_scu_ipc_init(void)
 {
-	platform = mrst_identify_cpu();
+	platform = intel_mid_identify_cpu();
 	if (platform == 0)
 		return -ENODEV;
 	return  pci_register_driver(&ipc_driver);
diff --git a/drivers/watchdog/intel_scu_watchdog.c b/drivers/watchdog/intel_scu_watchdog.c
index 07964d82123a..8ced25613956 100644
--- a/drivers/watchdog/intel_scu_watchdog.c
+++ b/drivers/watchdog/intel_scu_watchdog.c
@@ -445,7 +445,7 @@ static int __init intel_scu_watchdog_init(void)
 	 *
 	 * If it isn't an intel MID device then it doesn't have this watchdog
 	 */
-	if (!mrst_identify_cpu())
+	if (!intel_mid_identify_cpu())
 		return -ENODEV;
 
 	/* Check boot parameters to verify that their initial values */
-- 
cgit 


From 661b01076500e364c68dd9fdf0ef4216a75e8375 Mon Sep 17 00:00:00 2001
From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Date: Thu, 17 Oct 2013 15:35:30 -0700
Subject: intel_mid: Refactored sfi_parse_devs() function

SFI device_id[] table parsing code is duplicated in every SFI
device handler. This patch removes this code duplication, by
adding a seperate function get_device_id() to parse through the
device table. Also this patch moves the SPI, I2C, IPC info code from
sfi_parse_devs() to respective device handlers.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: http://lkml.kernel.org/r/1382049336-21316-7-git-send-email-david.a.cohen@linux.intel.com
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/platform/intel-mid/intel-mid.c | 141 ++++++++++++++++----------------
 1 file changed, 71 insertions(+), 70 deletions(-)

diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index 94689ac55374..d24c729b24ad 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -831,20 +831,15 @@ static void __init install_irq_resource(struct platform_device *pdev, int irq)
 	platform_device_add_resources(pdev, &res, 1);
 }
 
-static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *entry)
+static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *pentry,
+					struct devs_id *dev)
 {
-	const struct devs_id *dev = device_ids;
 	struct platform_device *pdev;
 	void *pdata = NULL;
 
-	while (dev->name[0]) {
-		if (dev->type == SFI_DEV_TYPE_IPC &&
-			!strncmp(dev->name, entry->name, SFI_NAME_LEN)) {
-			pdata = dev->get_platform_data(entry);
-			break;
-		}
-		dev++;
-	}
+	pr_debug("IPC bus, name = %16.16s, irq = 0x%2x\n",
+		pentry->name, pentry->irq);
+	pdata = dev->get_platform_data(pentry);
 
 	/*
 	 * On Medfield the platform device creation is handled by the MSIC
@@ -853,68 +848,94 @@ static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *entry)
 	if (intel_mid_has_msic())
 		return;
 
-	pdev = platform_device_alloc(entry->name, 0);
+	pdev = platform_device_alloc(pentry->name, 0);
 	if (pdev == NULL) {
 		pr_err("out of memory for SFI platform device '%s'.\n",
-			entry->name);
+			pentry->name);
 		return;
 	}
-	install_irq_resource(pdev, entry->irq);
+	install_irq_resource(pdev, pentry->irq);
 
 	pdev->dev.platform_data = pdata;
 	intel_scu_device_register(pdev);
 }
 
-static void __init sfi_handle_spi_dev(struct spi_board_info *spi_info)
+static void __init sfi_handle_spi_dev(struct sfi_device_table_entry *pentry,
+					struct devs_id *dev)
 {
-	const struct devs_id *dev = device_ids;
+	struct spi_board_info spi_info;
 	void *pdata = NULL;
 
-	while (dev->name[0]) {
-		if (dev->type == SFI_DEV_TYPE_SPI &&
-			!strncmp(dev->name, spi_info->modalias,
-						SFI_NAME_LEN)) {
-			pdata = dev->get_platform_data(spi_info);
-			break;
-		}
-		dev++;
-	}
-	spi_info->platform_data = pdata;
+	memset(&spi_info, 0, sizeof(spi_info));
+	strncpy(spi_info.modalias, pentry->name, SFI_NAME_LEN);
+	spi_info.irq = ((pentry->irq == (u8)0xff) ? 0 : pentry->irq);
+	spi_info.bus_num = pentry->host_num;
+	spi_info.chip_select = pentry->addr;
+	spi_info.max_speed_hz = pentry->max_freq;
+	pr_debug("SPI bus=%d, name=%16.16s, irq=0x%2x, max_freq=%d, cs=%d\n",
+		spi_info.bus_num,
+		spi_info.modalias,
+		spi_info.irq,
+		spi_info.max_speed_hz,
+		spi_info.chip_select);
+
+	pdata = dev->get_platform_data(&spi_info);
+
+	spi_info.platform_data = pdata;
 	if (dev->delay)
-		intel_scu_spi_device_register(spi_info);
+		intel_scu_spi_device_register(&spi_info);
 	else
-		spi_register_board_info(spi_info, 1);
+		spi_register_board_info(&spi_info, 1);
 }
 
-static void __init sfi_handle_i2c_dev(int bus, struct i2c_board_info *i2c_info)
+static void __init sfi_handle_i2c_dev(struct sfi_device_table_entry *pentry,
+					struct devs_id *dev)
 {
-	const struct devs_id *dev = device_ids;
+	struct i2c_board_info i2c_info;
 	void *pdata = NULL;
 
+	memset(&i2c_info, 0, sizeof(i2c_info));
+	strncpy(i2c_info.type, pentry->name, SFI_NAME_LEN);
+	i2c_info.irq = ((pentry->irq == (u8)0xff) ? 0 : pentry->irq);
+	i2c_info.addr = pentry->addr;
+	pr_debug("I2C bus = %d, name = %16.16s, irq = 0x%2x, addr = 0x%x\n",
+		pentry->host_num,
+		i2c_info.type,
+		i2c_info.irq,
+		i2c_info.addr);
+	pdata = dev->get_platform_data(&i2c_info);
+	i2c_info.platform_data = pdata;
+
+	if (dev->delay)
+		intel_scu_i2c_device_register(pentry->host_num, &i2c_info);
+	else
+		i2c_register_board_info(pentry->host_num, &i2c_info, 1);
+}
+
+static struct devs_id __init *get_device_id(u8 type, char *name)
+{
+	struct devs_id *dev = device_ids;
+
+	if (device_ids == NULL)
+		return NULL;
+
 	while (dev->name[0]) {
-		if (dev->type == SFI_DEV_TYPE_I2C &&
-			!strncmp(dev->name, i2c_info->type, SFI_NAME_LEN)) {
-			pdata = dev->get_platform_data(i2c_info);
-			break;
+		if (dev->type == type &&
+			!strncmp(dev->name, name, SFI_NAME_LEN)) {
+			return dev;
 		}
 		dev++;
 	}
-	i2c_info->platform_data = pdata;
 
-	if (dev->delay)
-		intel_scu_i2c_device_register(bus, i2c_info);
-	else
-		i2c_register_board_info(bus, i2c_info, 1);
+	return NULL;
 }
 
-
 static int __init sfi_parse_devs(struct sfi_table_header *table)
 {
 	struct sfi_table_simple *sb;
 	struct sfi_device_table_entry *pentry;
-	struct spi_board_info spi_info;
-	struct i2c_board_info i2c_info;
-	int num, i, bus;
+	struct devs_id *dev = NULL;
+	int num, i;
 	int ioapic;
 	struct io_apic_irq_attr irq_attr;
 
@@ -939,40 +960,20 @@ static int __init sfi_parse_devs(struct sfi_table_header *table)
 		} else
 			irq = 0; /* No irq */
 
+		dev = get_device_id(pentry->type, pentry->name);
+
+		if ((dev == NULL) || (dev->get_platform_data == NULL))
+			continue;
+
 		switch (pentry->type) {
 		case SFI_DEV_TYPE_IPC:
-			pr_debug("info[%2d]: IPC bus, name = %16.16s, "
-				"irq = 0x%2x\n", i, pentry->name, pentry->irq);
-			sfi_handle_ipc_dev(pentry);
+			sfi_handle_ipc_dev(pentry, dev);
 			break;
 		case SFI_DEV_TYPE_SPI:
-			memset(&spi_info, 0, sizeof(spi_info));
-			strncpy(spi_info.modalias, pentry->name, SFI_NAME_LEN);
-			spi_info.irq = irq;
-			spi_info.bus_num = pentry->host_num;
-			spi_info.chip_select = pentry->addr;
-			spi_info.max_speed_hz = pentry->max_freq;
-			pr_debug("info[%2d]: SPI bus = %d, name = %16.16s, "
-				"irq = 0x%2x, max_freq = %d, cs = %d\n", i,
-				spi_info.bus_num,
-				spi_info.modalias,
-				spi_info.irq,
-				spi_info.max_speed_hz,
-				spi_info.chip_select);
-			sfi_handle_spi_dev(&spi_info);
+			sfi_handle_spi_dev(pentry, dev);
 			break;
 		case SFI_DEV_TYPE_I2C:
-			memset(&i2c_info, 0, sizeof(i2c_info));
-			bus = pentry->host_num;
-			strncpy(i2c_info.type, pentry->name, SFI_NAME_LEN);
-			i2c_info.irq = irq;
-			i2c_info.addr = pentry->addr;
-			pr_debug("info[%2d]: I2C bus = %d, name = %16.16s, "
-				"irq = 0x%2x, addr = 0x%x\n", i, bus,
-				i2c_info.type,
-				i2c_info.irq,
-				i2c_info.addr);
-			sfi_handle_i2c_dev(bus, &i2c_info);
+			sfi_handle_i2c_dev(pentry, dev);
 			break;
 		case SFI_DEV_TYPE_UART:
 		case SFI_DEV_TYPE_HSI:
-- 
cgit 


From 3fd79ae4275001f293dbd170479e89df6c433226 Mon Sep 17 00:00:00 2001
From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Date: Thu, 17 Oct 2013 15:35:31 -0700
Subject: intel_mid: Added custom device_handler support

This patch provides a means to add custom handler for
SFI devices. If you set device_handler as NULL in
device_id table standard SFI device handler will be used.
If its not NULL custom handler will be called.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: http://lkml.kernel.org/r/1382049336-21316-8-git-send-email-david.a.cohen@linux.intel.com
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/platform/intel-mid/intel-mid.c | 74 ++++++++++++++++++---------------
 1 file changed, 40 insertions(+), 34 deletions(-)

diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index d24c729b24ad..7bfd7847a7a6 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -396,6 +396,9 @@ struct devs_id {
 	u8 type;
 	u8 delay;
 	void *(*get_platform_data)(void *info);
+	/* Custom handler for devices */
+	void (*device_handler)(struct sfi_device_table_entry *pentry,
+				struct devs_id *dev);
 };
 
 /* the offset for the mapping of global gpio pin to irq */
@@ -690,28 +693,27 @@ static void *tc35876x_platform_data(void *data)
 }
 
 static const struct devs_id __initconst device_ids[] = {
-	{"bma023", SFI_DEV_TYPE_I2C, 1, &no_platform_data},
-	{"pmic_gpio", SFI_DEV_TYPE_SPI, 1, &pmic_gpio_platform_data},
-	{"pmic_gpio", SFI_DEV_TYPE_IPC, 1, &pmic_gpio_platform_data},
-	{"spi_max3111", SFI_DEV_TYPE_SPI, 0, &max3111_platform_data},
-	{"i2c_max7315", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data},
-	{"i2c_max7315_2", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data},
-	{"tca6416", SFI_DEV_TYPE_I2C, 1, &tca6416_platform_data},
-	{"emc1403", SFI_DEV_TYPE_I2C, 1, &emc1403_platform_data},
-	{"i2c_accel", SFI_DEV_TYPE_I2C, 0, &lis331dl_platform_data},
-	{"pmic_audio", SFI_DEV_TYPE_IPC, 1, &no_platform_data},
-	{"mpu3050", SFI_DEV_TYPE_I2C, 1, &mpu3050_platform_data},
-	{"i2c_disp_brig", SFI_DEV_TYPE_I2C, 0, &tc35876x_platform_data},
+	{"bma023", SFI_DEV_TYPE_I2C, 1, &no_platform_data, NULL},
+	{"pmic_gpio", SFI_DEV_TYPE_SPI, 1, &pmic_gpio_platform_data, NULL},
+	{"pmic_gpio", SFI_DEV_TYPE_IPC, 1, &pmic_gpio_platform_data, NULL},
+	{"spi_max3111", SFI_DEV_TYPE_SPI, 0, &max3111_platform_data, NULL},
+	{"i2c_max7315", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data, NULL},
+	{"i2c_max7315_2", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data, NULL},
+	{"tca6416", SFI_DEV_TYPE_I2C, 1, &tca6416_platform_data, NULL},
+	{"emc1403", SFI_DEV_TYPE_I2C, 1, &emc1403_platform_data, NULL},
+	{"i2c_accel", SFI_DEV_TYPE_I2C, 0, &lis331dl_platform_data, NULL},
+	{"pmic_audio", SFI_DEV_TYPE_IPC, 1, &no_platform_data, NULL},
+	{"mpu3050", SFI_DEV_TYPE_I2C, 1, &mpu3050_platform_data, NULL},
+	{"i2c_disp_brig", SFI_DEV_TYPE_I2C, 0, &tc35876x_platform_data, NULL},
 
 	/* MSIC subdevices */
-	{"msic_battery", SFI_DEV_TYPE_IPC, 1, &msic_battery_platform_data},
-	{"msic_gpio", SFI_DEV_TYPE_IPC, 1, &msic_gpio_platform_data},
-	{"msic_audio", SFI_DEV_TYPE_IPC, 1, &msic_audio_platform_data},
-	{"msic_power_btn", SFI_DEV_TYPE_IPC, 1, &msic_power_btn_platform_data},
-	{"msic_ocd", SFI_DEV_TYPE_IPC, 1, &msic_ocd_platform_data},
-	{"msic_thermal", SFI_DEV_TYPE_IPC, 1, &msic_thermal_platform_data},
-
-	{},
+	{"msic_battery", SFI_DEV_TYPE_IPC, 1, &msic_battery_platform_data, NULL},
+	{"msic_gpio", SFI_DEV_TYPE_IPC, 1, &msic_gpio_platform_data, NULL},
+	{"msic_audio", SFI_DEV_TYPE_IPC, 1, &msic_audio_platform_data, NULL},
+	{"msic_power_btn", SFI_DEV_TYPE_IPC, 1, &msic_power_btn_platform_data, NULL},
+	{"msic_ocd", SFI_DEV_TYPE_IPC, 1, &msic_ocd_platform_data, NULL},
+	{"msic_thermal", SFI_DEV_TYPE_IPC, 1, &msic_thermal_platform_data, NULL},
+	{ 0 }
 };
 
 #define MAX_IPCDEVS	24
@@ -965,20 +967,24 @@ static int __init sfi_parse_devs(struct sfi_table_header *table)
 		if ((dev == NULL) || (dev->get_platform_data == NULL))
 			continue;
 
-		switch (pentry->type) {
-		case SFI_DEV_TYPE_IPC:
-			sfi_handle_ipc_dev(pentry, dev);
-			break;
-		case SFI_DEV_TYPE_SPI:
-			sfi_handle_spi_dev(pentry, dev);
-			break;
-		case SFI_DEV_TYPE_I2C:
-			sfi_handle_i2c_dev(pentry, dev);
-			break;
-		case SFI_DEV_TYPE_UART:
-		case SFI_DEV_TYPE_HSI:
-		default:
-			;
+		if (dev->device_handler) {
+			dev->device_handler(pentry, dev);
+		} else {
+			switch (pentry->type) {
+			case SFI_DEV_TYPE_IPC:
+				sfi_handle_ipc_dev(pentry, dev);
+				break;
+			case SFI_DEV_TYPE_SPI:
+				sfi_handle_spi_dev(pentry, dev);
+				break;
+			case SFI_DEV_TYPE_I2C:
+				sfi_handle_i2c_dev(pentry, dev);
+				break;
+			case SFI_DEV_TYPE_UART:
+			case SFI_DEV_TYPE_HSI:
+			default:
+				break;
+			}
 		}
 	}
 	return 0;
-- 
cgit 


From 49c72a0a8ad640fa6026962056eeaf85a4ce79fd Mon Sep 17 00:00:00 2001
From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Date: Thu, 17 Oct 2013 15:35:32 -0700
Subject: intel_mid: Added custom handler for ipc devices

Added a custom handler for medfield based ipc devices and
moved devs_id structure defintion to header file.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: http://lkml.kernel.org/r/1382049336-21316-9-git-send-email-david.a.cohen@linux.intel.com
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/include/asm/intel-mid.h        | 15 ++++++
 arch/x86/platform/intel-mid/intel-mid.c | 82 ++++++++++++++++++++-------------
 2 files changed, 66 insertions(+), 31 deletions(-)

diff --git a/arch/x86/include/asm/intel-mid.h b/arch/x86/include/asm/intel-mid.h
index beb7a5f1862a..ad236ae45c1f 100644
--- a/arch/x86/include/asm/intel-mid.h
+++ b/arch/x86/include/asm/intel-mid.h
@@ -18,6 +18,21 @@ extern int __init sfi_parse_mrtc(struct sfi_table_header *table);
 extern int sfi_mrtc_num;
 extern struct sfi_rtc_table_entry sfi_mrtc_array[];
 
+/*
+ * Here defines the array of devices platform data that IAFW would export
+ * through SFI "DEVS" table, we use name and type to match the device and
+ * its platform data.
+ */
+struct devs_id {
+	char name[SFI_NAME_LEN + 1];
+	u8 type;
+	u8 delay;
+	void *(*get_platform_data)(void *info);
+	/* Custom handler for devices */
+	void (*device_handler)(struct sfi_device_table_entry *pentry,
+				struct devs_id *dev);
+};
+
 /*
  * Medfield is the follow-up of Moorestown, it combines two chip solution into
  * one. Other than that it also added always-on and constant tsc and lapic
diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index 7bfd7847a7a6..40a3ff8e53e5 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -78,6 +78,8 @@ int sfi_mtimer_num;
 struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX];
 EXPORT_SYMBOL_GPL(sfi_mrtc_array);
 int sfi_mrtc_num;
+static void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
+			struct devs_id *dev);
 
 static void intel_mid_power_off(void)
 {
@@ -386,21 +388,6 @@ static int get_gpio_by_name(const char *name)
 	return -1;
 }
 
-/*
- * Here defines the array of devices platform data that IAFW would export
- * through SFI "DEVS" table, we use name and type to match the device and
- * its platform data.
- */
-struct devs_id {
-	char name[SFI_NAME_LEN + 1];
-	u8 type;
-	u8 delay;
-	void *(*get_platform_data)(void *info);
-	/* Custom handler for devices */
-	void (*device_handler)(struct sfi_device_table_entry *pentry,
-				struct devs_id *dev);
-};
-
 /* the offset for the mapping of global gpio pin to irq */
 #define INTEL_MID_IRQ_OFFSET 0x100
 
@@ -695,24 +682,24 @@ static void *tc35876x_platform_data(void *data)
 static const struct devs_id __initconst device_ids[] = {
 	{"bma023", SFI_DEV_TYPE_I2C, 1, &no_platform_data, NULL},
 	{"pmic_gpio", SFI_DEV_TYPE_SPI, 1, &pmic_gpio_platform_data, NULL},
-	{"pmic_gpio", SFI_DEV_TYPE_IPC, 1, &pmic_gpio_platform_data, NULL},
+	{"pmic_gpio", SFI_DEV_TYPE_IPC, 1, &pmic_gpio_platform_data, &ipc_device_handler},
 	{"spi_max3111", SFI_DEV_TYPE_SPI, 0, &max3111_platform_data, NULL},
 	{"i2c_max7315", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data, NULL},
 	{"i2c_max7315_2", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data, NULL},
 	{"tca6416", SFI_DEV_TYPE_I2C, 1, &tca6416_platform_data, NULL},
 	{"emc1403", SFI_DEV_TYPE_I2C, 1, &emc1403_platform_data, NULL},
 	{"i2c_accel", SFI_DEV_TYPE_I2C, 0, &lis331dl_platform_data, NULL},
-	{"pmic_audio", SFI_DEV_TYPE_IPC, 1, &no_platform_data, NULL},
+	{"pmic_audio", SFI_DEV_TYPE_IPC, 1, &no_platform_data, &ipc_device_handler},
 	{"mpu3050", SFI_DEV_TYPE_I2C, 1, &mpu3050_platform_data, NULL},
 	{"i2c_disp_brig", SFI_DEV_TYPE_I2C, 0, &tc35876x_platform_data, NULL},
 
 	/* MSIC subdevices */
-	{"msic_battery", SFI_DEV_TYPE_IPC, 1, &msic_battery_platform_data, NULL},
-	{"msic_gpio", SFI_DEV_TYPE_IPC, 1, &msic_gpio_platform_data, NULL},
-	{"msic_audio", SFI_DEV_TYPE_IPC, 1, &msic_audio_platform_data, NULL},
-	{"msic_power_btn", SFI_DEV_TYPE_IPC, 1, &msic_power_btn_platform_data, NULL},
-	{"msic_ocd", SFI_DEV_TYPE_IPC, 1, &msic_ocd_platform_data, NULL},
-	{"msic_thermal", SFI_DEV_TYPE_IPC, 1, &msic_thermal_platform_data, NULL},
+	{"msic_battery", SFI_DEV_TYPE_IPC, 1, &msic_battery_platform_data, &ipc_device_handler},
+	{"msic_gpio", SFI_DEV_TYPE_IPC, 1, &msic_gpio_platform_data, &ipc_device_handler},
+	{"msic_audio", SFI_DEV_TYPE_IPC, 1, &msic_audio_platform_data, &ipc_device_handler},
+	{"msic_power_btn", SFI_DEV_TYPE_IPC, 1, &msic_power_btn_platform_data, &ipc_device_handler},
+	{"msic_ocd", SFI_DEV_TYPE_IPC, 1, &msic_ocd_platform_data, &ipc_device_handler},
+	{"msic_thermal", SFI_DEV_TYPE_IPC, 1, &msic_thermal_platform_data, &ipc_device_handler},
 	{ 0 }
 };
 
@@ -843,13 +830,6 @@ static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *pentry,
 		pentry->name, pentry->irq);
 	pdata = dev->get_platform_data(pentry);
 
-	/*
-	 * On Medfield the platform device creation is handled by the MSIC
-	 * MFD driver so we don't need to do it here.
-	 */
-	if (intel_mid_has_msic())
-		return;
-
 	pdev = platform_device_alloc(pentry->name, 0);
 	if (pdev == NULL) {
 		pr_err("out of memory for SFI platform device '%s'.\n",
@@ -859,7 +839,7 @@ static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *pentry,
 	install_irq_resource(pdev, pentry->irq);
 
 	pdev->dev.platform_data = pdata;
-	intel_scu_device_register(pdev);
+	platform_device_add(pdev);
 }
 
 static void __init sfi_handle_spi_dev(struct sfi_device_table_entry *pentry,
@@ -914,6 +894,46 @@ static void __init sfi_handle_i2c_dev(struct sfi_device_table_entry *pentry,
 		i2c_register_board_info(pentry->host_num, &i2c_info, 1);
 }
 
+static void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
+				struct devs_id *dev)
+{
+	struct platform_device *pdev;
+	void *pdata = NULL;
+	static struct resource res __initdata = {
+		.name = "IRQ",
+		.flags = IORESOURCE_IRQ,
+	};
+
+	pr_debug("IPC bus, name = %16.16s, irq = 0x%2x\n",
+		pentry->name, pentry->irq);
+
+	/*
+	 * We need to call platform init of IPC devices to fill misc_pdata
+	 * structure. It will be used in msic_init for initialization.
+	 */
+	if (dev != NULL)
+		pdata = dev->get_platform_data(pentry);
+
+	/*
+	 * On Medfield the platform device creation is handled by the MSIC
+	 * MFD driver so we don't need to do it here.
+	 */
+	if (intel_mid_has_msic())
+		return;
+
+	pdev = platform_device_alloc(pentry->name, 0);
+	if (pdev == NULL) {
+		pr_err("out of memory for SFI platform device '%s'.\n",
+			pentry->name);
+		return;
+	}
+	res.start = pentry->irq;
+	platform_device_add_resources(pdev, &res, 1);
+
+	pdev->dev.platform_data = pdata;
+	intel_scu_device_register(pdev);
+}
+
 static struct devs_id __init *get_device_id(u8 type, char *name)
 {
 	struct devs_id *dev = device_ids;
-- 
cgit 


From aeedb370e7398fb5b39185b295d36f2da0653215 Mon Sep 17 00:00:00 2001
From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Date: Thu, 17 Oct 2013 15:35:33 -0700
Subject: intel_mid: Moved SFI related code to sfi.c

Moved SFI specific parsing/handling code to sfi.c. This will enable us
to reuse our intel-mid code for platforms that supports firmware
interfaces other than SFI (like ACPI).

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: http://lkml.kernel.org/r/1382049336-21316-10-git-send-email-david.a.cohen@linux.intel.com
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/include/asm/intel-mid.h        |   1 +
 arch/x86/platform/intel-mid/Makefile    |   2 +
 arch/x86/platform/intel-mid/intel-mid.c | 451 +----------------------------
 arch/x86/platform/intel-mid/sfi.c       | 485 ++++++++++++++++++++++++++++++++
 4 files changed, 489 insertions(+), 450 deletions(-)
 create mode 100644 arch/x86/platform/intel-mid/sfi.c

diff --git a/arch/x86/include/asm/intel-mid.h b/arch/x86/include/asm/intel-mid.h
index ad236ae45c1f..3b0e7a771cb5 100644
--- a/arch/x86/include/asm/intel-mid.h
+++ b/arch/x86/include/asm/intel-mid.h
@@ -15,6 +15,7 @@
 
 extern int intel_mid_pci_init(void);
 extern int __init sfi_parse_mrtc(struct sfi_table_header *table);
+extern int __init sfi_parse_mtmr(struct sfi_table_header *table);
 extern int sfi_mrtc_num;
 extern struct sfi_rtc_table_entry sfi_mrtc_array[];
 
diff --git a/arch/x86/platform/intel-mid/Makefile b/arch/x86/platform/intel-mid/Makefile
index de296358111e..b11e5b2de336 100644
--- a/arch/x86/platform/intel-mid/Makefile
+++ b/arch/x86/platform/intel-mid/Makefile
@@ -1,3 +1,5 @@
 obj-$(CONFIG_X86_INTEL_MID) += intel-mid.o
 obj-$(CONFIG_X86_INTEL_MID)	+= intel_mid_vrtc.o
 obj-$(CONFIG_EARLY_PRINTK_INTEL_MID)	+= early_printk_intel_mid.o
+# SFI specific code
+obj-$(CONFIG_SFI) += sfi.o
diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index 40a3ff8e53e5..40915698b9b7 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -18,19 +18,9 @@
 #include <linux/interrupt.h>
 #include <linux/scatterlist.h>
 #include <linux/sfi.h>
-#include <linux/intel_pmic_gpio.h>
-#include <linux/spi/spi.h>
-#include <linux/i2c.h>
-#include <linux/platform_data/pca953x.h>
-#include <linux/gpio_keys.h>
-#include <linux/input.h>
-#include <linux/platform_device.h>
 #include <linux/irq.h>
 #include <linux/module.h>
 #include <linux/notifier.h>
-#include <linux/mfd/intel_msic.h>
-#include <linux/gpio.h>
-#include <linux/i2c/tc35876x.h>
 
 #include <asm/setup.h>
 #include <asm/mpspec_def.h>
@@ -68,19 +58,11 @@
 
 enum intel_mid_timer_options intel_mid_timer_options;
 
-static u32 sfi_mtimer_usage[SFI_MTMR_MAX_NUM];
-static struct sfi_timer_table_entry sfi_mtimer_array[SFI_MTMR_MAX_NUM];
 enum intel_mid_cpu_type __intel_mid_cpu_chip;
 EXPORT_SYMBOL_GPL(__intel_mid_cpu_chip);
 
-int sfi_mtimer_num;
-
-struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX];
-EXPORT_SYMBOL_GPL(sfi_mrtc_array);
-int sfi_mrtc_num;
 static void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
 			struct devs_id *dev);
-
 static void intel_mid_power_off(void)
 {
 }
@@ -90,114 +72,6 @@ static void intel_mid_reboot(void)
 	intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0);
 }
 
-/* parse all the mtimer info to a static mtimer array */
-static int __init sfi_parse_mtmr(struct sfi_table_header *table)
-{
-	struct sfi_table_simple *sb;
-	struct sfi_timer_table_entry *pentry;
-	struct mpc_intsrc mp_irq;
-	int totallen;
-
-	sb = (struct sfi_table_simple *)table;
-	if (!sfi_mtimer_num) {
-		sfi_mtimer_num = SFI_GET_NUM_ENTRIES(sb,
-					struct sfi_timer_table_entry);
-		pentry = (struct sfi_timer_table_entry *) sb->pentry;
-		totallen = sfi_mtimer_num * sizeof(*pentry);
-		memcpy(sfi_mtimer_array, pentry, totallen);
-	}
-
-	pr_debug("SFI MTIMER info (num = %d):\n", sfi_mtimer_num);
-	pentry = sfi_mtimer_array;
-	for (totallen = 0; totallen < sfi_mtimer_num; totallen++, pentry++) {
-		pr_debug("timer[%d]: paddr = 0x%08x, freq = %dHz,"
-			" irq = %d\n", totallen, (u32)pentry->phys_addr,
-			pentry->freq_hz, pentry->irq);
-			if (!pentry->irq)
-				continue;
-			mp_irq.type = MP_INTSRC;
-			mp_irq.irqtype = mp_INT;
-/* triggering mode edge bit 2-3, active high polarity bit 0-1 */
-			mp_irq.irqflag = 5;
-			mp_irq.srcbus = MP_BUS_ISA;
-			mp_irq.srcbusirq = pentry->irq;	/* IRQ */
-			mp_irq.dstapic = MP_APIC_ALL;
-			mp_irq.dstirq = pentry->irq;
-			mp_save_irq(&mp_irq);
-	}
-
-	return 0;
-}
-
-struct sfi_timer_table_entry *sfi_get_mtmr(int hint)
-{
-	int i;
-	if (hint < sfi_mtimer_num) {
-		if (!sfi_mtimer_usage[hint]) {
-			pr_debug("hint taken for timer %d irq %d\n",
-				hint, sfi_mtimer_array[hint].irq);
-			sfi_mtimer_usage[hint] = 1;
-			return &sfi_mtimer_array[hint];
-		}
-	}
-	/* take the first timer available */
-	for (i = 0; i < sfi_mtimer_num;) {
-		if (!sfi_mtimer_usage[i]) {
-			sfi_mtimer_usage[i] = 1;
-			return &sfi_mtimer_array[i];
-		}
-		i++;
-	}
-	return NULL;
-}
-
-void sfi_free_mtmr(struct sfi_timer_table_entry *mtmr)
-{
-	int i;
-	for (i = 0; i < sfi_mtimer_num;) {
-		if (mtmr->irq == sfi_mtimer_array[i].irq) {
-			sfi_mtimer_usage[i] = 0;
-			return;
-		}
-		i++;
-	}
-}
-
-/* parse all the mrtc info to a global mrtc array */
-int __init sfi_parse_mrtc(struct sfi_table_header *table)
-{
-	struct sfi_table_simple *sb;
-	struct sfi_rtc_table_entry *pentry;
-	struct mpc_intsrc mp_irq;
-
-	int totallen;
-
-	sb = (struct sfi_table_simple *)table;
-	if (!sfi_mrtc_num) {
-		sfi_mrtc_num = SFI_GET_NUM_ENTRIES(sb,
-						struct sfi_rtc_table_entry);
-		pentry = (struct sfi_rtc_table_entry *)sb->pentry;
-		totallen = sfi_mrtc_num * sizeof(*pentry);
-		memcpy(sfi_mrtc_array, pentry, totallen);
-	}
-
-	pr_debug("SFI RTC info (num = %d):\n", sfi_mrtc_num);
-	pentry = sfi_mrtc_array;
-	for (totallen = 0; totallen < sfi_mrtc_num; totallen++, pentry++) {
-		pr_debug("RTC[%d]: paddr = 0x%08x, irq = %d\n",
-			totallen, (u32)pentry->phys_addr, pentry->irq);
-		mp_irq.type = MP_INTSRC;
-		mp_irq.irqtype = mp_INT;
-		mp_irq.irqflag = 0xf;	/* level trigger and active low */
-		mp_irq.srcbus = MP_BUS_ISA;
-		mp_irq.srcbusirq = pentry->irq;	/* IRQ */
-		mp_irq.dstapic = MP_APIC_ALL;
-		mp_irq.dstirq = pentry->irq;
-		mp_save_irq(&mp_irq);
-	}
-	return 0;
-}
-
 static unsigned long __init intel_mid_calibrate_tsc(void)
 {
 	unsigned long fast_calibrate;
@@ -339,55 +213,6 @@ static inline int __init setup_x86_intel_mid_timer(char *arg)
 }
 __setup("x86_intel_mid_timer=", setup_x86_intel_mid_timer);
 
-/*
- * Parsing GPIO table first, since the DEVS table will need this table
- * to map the pin name to the actual pin.
- */
-static struct sfi_gpio_table_entry *gpio_table;
-static int gpio_num_entry;
-
-static int __init sfi_parse_gpio(struct sfi_table_header *table)
-{
-	struct sfi_table_simple *sb;
-	struct sfi_gpio_table_entry *pentry;
-	int num, i;
-
-	if (gpio_table)
-		return 0;
-	sb = (struct sfi_table_simple *)table;
-	num = SFI_GET_NUM_ENTRIES(sb, struct sfi_gpio_table_entry);
-	pentry = (struct sfi_gpio_table_entry *)sb->pentry;
-
-	gpio_table = kmalloc(num * sizeof(*pentry), GFP_KERNEL);
-	if (!gpio_table)
-		return -1;
-	memcpy(gpio_table, pentry, num * sizeof(*pentry));
-	gpio_num_entry = num;
-
-	pr_debug("GPIO pin info:\n");
-	for (i = 0; i < num; i++, pentry++)
-		pr_debug("info[%2d]: controller = %16.16s, pin_name = %16.16s,"
-		" pin = %d\n", i,
-			pentry->controller_name,
-			pentry->pin_name,
-			pentry->pin_no);
-	return 0;
-}
-
-static int get_gpio_by_name(const char *name)
-{
-	struct sfi_gpio_table_entry *pentry = gpio_table;
-	int i;
-
-	if (!pentry)
-		return -1;
-	for (i = 0; i < gpio_num_entry; i++, pentry++) {
-		if (!strncmp(name, pentry->pin_name, SFI_NAME_LEN))
-			return pentry->pin_no;
-	}
-	return -1;
-}
-
 /* the offset for the mapping of global gpio pin to irq */
 #define INTEL_MID_IRQ_OFFSET 0x100
 
@@ -703,197 +528,6 @@ static const struct devs_id __initconst device_ids[] = {
 	{ 0 }
 };
 
-#define MAX_IPCDEVS	24
-static struct platform_device *ipc_devs[MAX_IPCDEVS];
-static int ipc_next_dev;
-
-#define MAX_SCU_SPI	24
-static struct spi_board_info *spi_devs[MAX_SCU_SPI];
-static int spi_next_dev;
-
-#define MAX_SCU_I2C	24
-static struct i2c_board_info *i2c_devs[MAX_SCU_I2C];
-static int i2c_bus[MAX_SCU_I2C];
-static int i2c_next_dev;
-
-static void __init intel_scu_device_register(struct platform_device *pdev)
-{
-	if (ipc_next_dev == MAX_IPCDEVS)
-		pr_err("too many SCU IPC devices");
-	else
-		ipc_devs[ipc_next_dev++] = pdev;
-}
-
-static void __init intel_scu_spi_device_register(struct spi_board_info *sdev)
-{
-	struct spi_board_info *new_dev;
-
-	if (spi_next_dev == MAX_SCU_SPI) {
-		pr_err("too many SCU SPI devices");
-		return;
-	}
-
-	new_dev = kzalloc(sizeof(*sdev), GFP_KERNEL);
-	if (!new_dev) {
-		pr_err("failed to alloc mem for delayed spi dev %s\n",
-			sdev->modalias);
-		return;
-	}
-	memcpy(new_dev, sdev, sizeof(*sdev));
-
-	spi_devs[spi_next_dev++] = new_dev;
-}
-
-static void __init intel_scu_i2c_device_register(int bus,
-						struct i2c_board_info *idev)
-{
-	struct i2c_board_info *new_dev;
-
-	if (i2c_next_dev == MAX_SCU_I2C) {
-		pr_err("too many SCU I2C devices");
-		return;
-	}
-
-	new_dev = kzalloc(sizeof(*idev), GFP_KERNEL);
-	if (!new_dev) {
-		pr_err("failed to alloc mem for delayed i2c dev %s\n",
-			idev->type);
-		return;
-	}
-	memcpy(new_dev, idev, sizeof(*idev));
-
-	i2c_bus[i2c_next_dev] = bus;
-	i2c_devs[i2c_next_dev++] = new_dev;
-}
-
-BLOCKING_NOTIFIER_HEAD(intel_scu_notifier);
-EXPORT_SYMBOL_GPL(intel_scu_notifier);
-
-/* Called by IPC driver */
-void intel_scu_devices_create(void)
-{
-	int i;
-
-	for (i = 0; i < ipc_next_dev; i++)
-		platform_device_add(ipc_devs[i]);
-
-	for (i = 0; i < spi_next_dev; i++)
-		spi_register_board_info(spi_devs[i], 1);
-
-	for (i = 0; i < i2c_next_dev; i++) {
-		struct i2c_adapter *adapter;
-		struct i2c_client *client;
-
-		adapter = i2c_get_adapter(i2c_bus[i]);
-		if (adapter) {
-			client = i2c_new_device(adapter, i2c_devs[i]);
-			if (!client)
-				pr_err("can't create i2c device %s\n",
-					i2c_devs[i]->type);
-		} else
-			i2c_register_board_info(i2c_bus[i], i2c_devs[i], 1);
-	}
-	intel_scu_notifier_post(SCU_AVAILABLE, NULL);
-}
-EXPORT_SYMBOL_GPL(intel_scu_devices_create);
-
-/* Called by IPC driver */
-void intel_scu_devices_destroy(void)
-{
-	int i;
-
-	intel_scu_notifier_post(SCU_DOWN, NULL);
-
-	for (i = 0; i < ipc_next_dev; i++)
-		platform_device_del(ipc_devs[i]);
-}
-EXPORT_SYMBOL_GPL(intel_scu_devices_destroy);
-
-static void __init install_irq_resource(struct platform_device *pdev, int irq)
-{
-	/* Single threaded */
-	static struct resource __initdata res = {
-		.name = "IRQ",
-		.flags = IORESOURCE_IRQ,
-	};
-	res.start = irq;
-	platform_device_add_resources(pdev, &res, 1);
-}
-
-static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *pentry,
-					struct devs_id *dev)
-{
-	struct platform_device *pdev;
-	void *pdata = NULL;
-
-	pr_debug("IPC bus, name = %16.16s, irq = 0x%2x\n",
-		pentry->name, pentry->irq);
-	pdata = dev->get_platform_data(pentry);
-
-	pdev = platform_device_alloc(pentry->name, 0);
-	if (pdev == NULL) {
-		pr_err("out of memory for SFI platform device '%s'.\n",
-			pentry->name);
-		return;
-	}
-	install_irq_resource(pdev, pentry->irq);
-
-	pdev->dev.platform_data = pdata;
-	platform_device_add(pdev);
-}
-
-static void __init sfi_handle_spi_dev(struct sfi_device_table_entry *pentry,
-					struct devs_id *dev)
-{
-	struct spi_board_info spi_info;
-	void *pdata = NULL;
-
-	memset(&spi_info, 0, sizeof(spi_info));
-	strncpy(spi_info.modalias, pentry->name, SFI_NAME_LEN);
-	spi_info.irq = ((pentry->irq == (u8)0xff) ? 0 : pentry->irq);
-	spi_info.bus_num = pentry->host_num;
-	spi_info.chip_select = pentry->addr;
-	spi_info.max_speed_hz = pentry->max_freq;
-	pr_debug("SPI bus=%d, name=%16.16s, irq=0x%2x, max_freq=%d, cs=%d\n",
-		spi_info.bus_num,
-		spi_info.modalias,
-		spi_info.irq,
-		spi_info.max_speed_hz,
-		spi_info.chip_select);
-
-	pdata = dev->get_platform_data(&spi_info);
-
-	spi_info.platform_data = pdata;
-	if (dev->delay)
-		intel_scu_spi_device_register(&spi_info);
-	else
-		spi_register_board_info(&spi_info, 1);
-}
-
-static void __init sfi_handle_i2c_dev(struct sfi_device_table_entry *pentry,
-					struct devs_id *dev)
-{
-	struct i2c_board_info i2c_info;
-	void *pdata = NULL;
-
-	memset(&i2c_info, 0, sizeof(i2c_info));
-	strncpy(i2c_info.type, pentry->name, SFI_NAME_LEN);
-	i2c_info.irq = ((pentry->irq == (u8)0xff) ? 0 : pentry->irq);
-	i2c_info.addr = pentry->addr;
-	pr_debug("I2C bus = %d, name = %16.16s, irq = 0x%2x, addr = 0x%x\n",
-		pentry->host_num,
-		i2c_info.type,
-		i2c_info.irq,
-		i2c_info.addr);
-	pdata = dev->get_platform_data(&i2c_info);
-	i2c_info.platform_data = pdata;
-
-	if (dev->delay)
-		intel_scu_i2c_device_register(pentry->host_num, &i2c_info);
-	else
-		i2c_register_board_info(pentry->host_num, &i2c_info, 1);
-}
-
 static void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
 				struct devs_id *dev)
 {
@@ -934,89 +568,6 @@ static void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
 	intel_scu_device_register(pdev);
 }
 
-static struct devs_id __init *get_device_id(u8 type, char *name)
-{
-	struct devs_id *dev = device_ids;
-
-	if (device_ids == NULL)
-		return NULL;
-
-	while (dev->name[0]) {
-		if (dev->type == type &&
-			!strncmp(dev->name, name, SFI_NAME_LEN)) {
-			return dev;
-		}
-		dev++;
-	}
-
-	return NULL;
-}
-
-static int __init sfi_parse_devs(struct sfi_table_header *table)
-{
-	struct sfi_table_simple *sb;
-	struct sfi_device_table_entry *pentry;
-	struct devs_id *dev = NULL;
-	int num, i;
-	int ioapic;
-	struct io_apic_irq_attr irq_attr;
-
-	sb = (struct sfi_table_simple *)table;
-	num = SFI_GET_NUM_ENTRIES(sb, struct sfi_device_table_entry);
-	pentry = (struct sfi_device_table_entry *)sb->pentry;
-
-	for (i = 0; i < num; i++, pentry++) {
-		int irq = pentry->irq;
-
-		if (irq != (u8)0xff) { /* native RTE case */
-			/* these SPI2 devices are not exposed to system as PCI
-			 * devices, but they have separate RTE entry in IOAPIC
-			 * so we have to enable them one by one here
-			 */
-			ioapic = mp_find_ioapic(irq);
-			irq_attr.ioapic = ioapic;
-			irq_attr.ioapic_pin = irq;
-			irq_attr.trigger = 1;
-			irq_attr.polarity = 1;
-			io_apic_set_pci_routing(NULL, irq, &irq_attr);
-		} else
-			irq = 0; /* No irq */
-
-		dev = get_device_id(pentry->type, pentry->name);
-
-		if ((dev == NULL) || (dev->get_platform_data == NULL))
-			continue;
-
-		if (dev->device_handler) {
-			dev->device_handler(pentry, dev);
-		} else {
-			switch (pentry->type) {
-			case SFI_DEV_TYPE_IPC:
-				sfi_handle_ipc_dev(pentry, dev);
-				break;
-			case SFI_DEV_TYPE_SPI:
-				sfi_handle_spi_dev(pentry, dev);
-				break;
-			case SFI_DEV_TYPE_I2C:
-				sfi_handle_i2c_dev(pentry, dev);
-				break;
-			case SFI_DEV_TYPE_UART:
-			case SFI_DEV_TYPE_HSI:
-			default:
-				break;
-			}
-		}
-	}
-	return 0;
-}
-
-static int __init intel_mid_platform_init(void)
-{
-	sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, sfi_parse_gpio);
-	sfi_table_parse(SFI_SIG_DEVS, NULL, NULL, sfi_parse_devs);
-	return 0;
-}
-arch_initcall(intel_mid_platform_init);
 
 /*
  * we will search these buttons in SFI GPIO table (by name)
@@ -1078,4 +629,4 @@ static int __init pb_keys_init(void)
 	}
 	return 0;
 }
-late_initcall(pb_keys_init);
+late_initcall(pb_keys_init);
\ No newline at end of file
diff --git a/arch/x86/platform/intel-mid/sfi.c b/arch/x86/platform/intel-mid/sfi.c
new file mode 100644
index 000000000000..2f8196d38f53
--- /dev/null
+++ b/arch/x86/platform/intel-mid/sfi.c
@@ -0,0 +1,485 @@
+/*
+ * intel_mid_sfi.c: Intel MID SFI initialization code
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/scatterlist.h>
+#include <linux/sfi.h>
+#include <linux/intel_pmic_gpio.h>
+#include <linux/spi/spi.h>
+#include <linux/i2c.h>
+#include <linux/skbuff.h>
+#include <linux/gpio.h>
+#include <linux/gpio_keys.h>
+#include <linux/input.h>
+#include <linux/platform_device.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/notifier.h>
+#include <linux/mmc/core.h>
+#include <linux/mmc/card.h>
+#include <linux/blkdev.h>
+
+#include <asm/setup.h>
+#include <asm/mpspec_def.h>
+#include <asm/hw_irq.h>
+#include <asm/apic.h>
+#include <asm/io_apic.h>
+#include <asm/intel-mid.h>
+#include <asm/intel_mid_vrtc.h>
+#include <asm/io.h>
+#include <asm/i8259.h>
+#include <asm/intel_scu_ipc.h>
+#include <asm/apb_timer.h>
+#include <asm/reboot.h>
+#include "intel_mid_weak_decls.h"
+
+#define	SFI_SIG_OEM0	"OEM0"
+#define MAX_IPCDEVS	24
+#define MAX_SCU_SPI	24
+#define MAX_SCU_I2C	24
+
+static struct platform_device *ipc_devs[MAX_IPCDEVS];
+static struct spi_board_info *spi_devs[MAX_SCU_SPI];
+static struct i2c_board_info *i2c_devs[MAX_SCU_I2C];
+static struct sfi_gpio_table_entry *gpio_table;
+static struct sfi_timer_table_entry sfi_mtimer_array[SFI_MTMR_MAX_NUM];
+static int ipc_next_dev;
+static int spi_next_dev;
+static int i2c_next_dev;
+static int i2c_bus[MAX_SCU_I2C];
+static int gpio_num_entry;
+static u32 sfi_mtimer_usage[SFI_MTMR_MAX_NUM];
+int sfi_mrtc_num;
+int sfi_mtimer_num;
+
+struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX];
+EXPORT_SYMBOL_GPL(sfi_mrtc_array);
+
+struct blocking_notifier_head intel_scu_notifier =
+			BLOCKING_NOTIFIER_INIT(intel_scu_notifier);
+EXPORT_SYMBOL_GPL(intel_scu_notifier);
+
+/* parse all the mtimer info to a static mtimer array */
+int __init sfi_parse_mtmr(struct sfi_table_header *table)
+{
+	struct sfi_table_simple *sb;
+	struct sfi_timer_table_entry *pentry;
+	struct mpc_intsrc mp_irq;
+	int totallen;
+
+	sb = (struct sfi_table_simple *)table;
+	if (!sfi_mtimer_num) {
+		sfi_mtimer_num = SFI_GET_NUM_ENTRIES(sb,
+					struct sfi_timer_table_entry);
+		pentry = (struct sfi_timer_table_entry *) sb->pentry;
+		totallen = sfi_mtimer_num * sizeof(*pentry);
+		memcpy(sfi_mtimer_array, pentry, totallen);
+	}
+
+	pr_debug("SFI MTIMER info (num = %d):\n", sfi_mtimer_num);
+	pentry = sfi_mtimer_array;
+	for (totallen = 0; totallen < sfi_mtimer_num; totallen++, pentry++) {
+		pr_debug("timer[%d]: paddr = 0x%08x, freq = %dHz, irq = %d\n",
+			totallen, (u32)pentry->phys_addr,
+			pentry->freq_hz, pentry->irq);
+			if (!pentry->irq)
+				continue;
+			mp_irq.type = MP_INTSRC;
+			mp_irq.irqtype = mp_INT;
+/* triggering mode edge bit 2-3, active high polarity bit 0-1 */
+			mp_irq.irqflag = 5;
+			mp_irq.srcbus = MP_BUS_ISA;
+			mp_irq.srcbusirq = pentry->irq;	/* IRQ */
+			mp_irq.dstapic = MP_APIC_ALL;
+			mp_irq.dstirq = pentry->irq;
+			mp_save_irq(&mp_irq);
+	}
+
+	return 0;
+}
+
+struct sfi_timer_table_entry *sfi_get_mtmr(int hint)
+{
+	int i;
+	if (hint < sfi_mtimer_num) {
+		if (!sfi_mtimer_usage[hint]) {
+			pr_debug("hint taken for timer %d irq %d\n",
+				hint, sfi_mtimer_array[hint].irq);
+			sfi_mtimer_usage[hint] = 1;
+			return &sfi_mtimer_array[hint];
+		}
+	}
+	/* take the first timer available */
+	for (i = 0; i < sfi_mtimer_num;) {
+		if (!sfi_mtimer_usage[i]) {
+			sfi_mtimer_usage[i] = 1;
+			return &sfi_mtimer_array[i];
+		}
+		i++;
+	}
+	return NULL;
+}
+
+void sfi_free_mtmr(struct sfi_timer_table_entry *mtmr)
+{
+	int i;
+	for (i = 0; i < sfi_mtimer_num;) {
+		if (mtmr->irq == sfi_mtimer_array[i].irq) {
+			sfi_mtimer_usage[i] = 0;
+			return;
+		}
+		i++;
+	}
+}
+
+/* parse all the mrtc info to a global mrtc array */
+int __init sfi_parse_mrtc(struct sfi_table_header *table)
+{
+	struct sfi_table_simple *sb;
+	struct sfi_rtc_table_entry *pentry;
+	struct mpc_intsrc mp_irq;
+
+	int totallen;
+
+	sb = (struct sfi_table_simple *)table;
+	if (!sfi_mrtc_num) {
+		sfi_mrtc_num = SFI_GET_NUM_ENTRIES(sb,
+						struct sfi_rtc_table_entry);
+		pentry = (struct sfi_rtc_table_entry *)sb->pentry;
+		totallen = sfi_mrtc_num * sizeof(*pentry);
+		memcpy(sfi_mrtc_array, pentry, totallen);
+	}
+
+	pr_debug("SFI RTC info (num = %d):\n", sfi_mrtc_num);
+	pentry = sfi_mrtc_array;
+	for (totallen = 0; totallen < sfi_mrtc_num; totallen++, pentry++) {
+		pr_debug("RTC[%d]: paddr = 0x%08x, irq = %d\n",
+			totallen, (u32)pentry->phys_addr, pentry->irq);
+		mp_irq.type = MP_INTSRC;
+		mp_irq.irqtype = mp_INT;
+		mp_irq.irqflag = 0xf;	/* level trigger and active low */
+		mp_irq.srcbus = MP_BUS_ISA;
+		mp_irq.srcbusirq = pentry->irq;	/* IRQ */
+		mp_irq.dstapic = MP_APIC_ALL;
+		mp_irq.dstirq = pentry->irq;
+		mp_save_irq(&mp_irq);
+	}
+	return 0;
+}
+
+
+/*
+ * Parsing GPIO table first, since the DEVS table will need this table
+ * to map the pin name to the actual pin.
+ */
+static int __init sfi_parse_gpio(struct sfi_table_header *table)
+{
+	struct sfi_table_simple *sb;
+	struct sfi_gpio_table_entry *pentry;
+	int num, i;
+
+	if (gpio_table)
+		return 0;
+	sb = (struct sfi_table_simple *)table;
+	num = SFI_GET_NUM_ENTRIES(sb, struct sfi_gpio_table_entry);
+	pentry = (struct sfi_gpio_table_entry *)sb->pentry;
+
+	gpio_table = kmalloc(num * sizeof(*pentry), GFP_KERNEL);
+	if (!gpio_table)
+		return -1;
+	memcpy(gpio_table, pentry, num * sizeof(*pentry));
+	gpio_num_entry = num;
+
+	pr_debug("GPIO pin info:\n");
+	for (i = 0; i < num; i++, pentry++)
+		pr_debug("info[%2d]: controller = %16.16s, pin_name = %16.16s,"
+		" pin = %d\n", i,
+			pentry->controller_name,
+			pentry->pin_name,
+			pentry->pin_no);
+	return 0;
+}
+
+int get_gpio_by_name(const char *name)
+{
+	struct sfi_gpio_table_entry *pentry = gpio_table;
+	int i;
+
+	if (!pentry)
+		return -1;
+	for (i = 0; i < gpio_num_entry; i++, pentry++) {
+		if (!strncmp(name, pentry->pin_name, SFI_NAME_LEN))
+			return pentry->pin_no;
+	}
+	return -1;
+}
+
+void __init intel_scu_device_register(struct platform_device *pdev)
+{
+	if (ipc_next_dev == MAX_IPCDEVS)
+		pr_err("too many SCU IPC devices");
+	else
+		ipc_devs[ipc_next_dev++] = pdev;
+}
+
+static void __init intel_scu_spi_device_register(struct spi_board_info *sdev)
+{
+	struct spi_board_info *new_dev;
+
+	if (spi_next_dev == MAX_SCU_SPI) {
+		pr_err("too many SCU SPI devices");
+		return;
+	}
+
+	new_dev = kzalloc(sizeof(*sdev), GFP_KERNEL);
+	if (!new_dev) {
+		pr_err("failed to alloc mem for delayed spi dev %s\n",
+			sdev->modalias);
+		return;
+	}
+	memcpy(new_dev, sdev, sizeof(*sdev));
+
+	spi_devs[spi_next_dev++] = new_dev;
+}
+
+static void __init intel_scu_i2c_device_register(int bus,
+						struct i2c_board_info *idev)
+{
+	struct i2c_board_info *new_dev;
+
+	if (i2c_next_dev == MAX_SCU_I2C) {
+		pr_err("too many SCU I2C devices");
+		return;
+	}
+
+	new_dev = kzalloc(sizeof(*idev), GFP_KERNEL);
+	if (!new_dev) {
+		pr_err("failed to alloc mem for delayed i2c dev %s\n",
+			idev->type);
+		return;
+	}
+	memcpy(new_dev, idev, sizeof(*idev));
+
+	i2c_bus[i2c_next_dev] = bus;
+	i2c_devs[i2c_next_dev++] = new_dev;
+}
+
+/* Called by IPC driver */
+void intel_scu_devices_create(void)
+{
+	int i;
+
+	for (i = 0; i < ipc_next_dev; i++)
+		platform_device_add(ipc_devs[i]);
+
+	for (i = 0; i < spi_next_dev; i++)
+		spi_register_board_info(spi_devs[i], 1);
+
+	for (i = 0; i < i2c_next_dev; i++) {
+		struct i2c_adapter *adapter;
+		struct i2c_client *client;
+
+		adapter = i2c_get_adapter(i2c_bus[i]);
+		if (adapter) {
+			client = i2c_new_device(adapter, i2c_devs[i]);
+			if (!client)
+				pr_err("can't create i2c device %s\n",
+					i2c_devs[i]->type);
+		} else
+			i2c_register_board_info(i2c_bus[i], i2c_devs[i], 1);
+	}
+	intel_scu_notifier_post(SCU_AVAILABLE, NULL);
+}
+EXPORT_SYMBOL_GPL(intel_scu_devices_create);
+
+/* Called by IPC driver */
+void intel_scu_devices_destroy(void)
+{
+	int i;
+
+	intel_scu_notifier_post(SCU_DOWN, NULL);
+
+	for (i = 0; i < ipc_next_dev; i++)
+		platform_device_del(ipc_devs[i]);
+}
+EXPORT_SYMBOL_GPL(intel_scu_devices_destroy);
+
+static void __init install_irq_resource(struct platform_device *pdev, int irq)
+{
+	/* Single threaded */
+	static struct resource res __initdata = {
+		.name = "IRQ",
+		.flags = IORESOURCE_IRQ,
+	};
+	res.start = irq;
+	platform_device_add_resources(pdev, &res, 1);
+}
+
+static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *pentry,
+					struct devs_id *dev)
+{
+	struct platform_device *pdev;
+	void *pdata = NULL;
+
+	pr_debug("IPC bus, name = %16.16s, irq = 0x%2x\n",
+		pentry->name, pentry->irq);
+	pdata = dev->get_platform_data(pentry);
+
+	pdev = platform_device_alloc(pentry->name, 0);
+	if (pdev == NULL) {
+		pr_err("out of memory for SFI platform device '%s'.\n",
+			pentry->name);
+		return;
+	}
+	install_irq_resource(pdev, pentry->irq);
+
+	pdev->dev.platform_data = pdata;
+	platform_device_add(pdev);
+}
+
+static void __init sfi_handle_spi_dev(struct sfi_device_table_entry *pentry,
+					struct devs_id *dev)
+{
+	struct spi_board_info spi_info;
+	void *pdata = NULL;
+
+	memset(&spi_info, 0, sizeof(spi_info));
+	strncpy(spi_info.modalias, pentry->name, SFI_NAME_LEN);
+	spi_info.irq = ((pentry->irq == (u8)0xff) ? 0 : pentry->irq);
+	spi_info.bus_num = pentry->host_num;
+	spi_info.chip_select = pentry->addr;
+	spi_info.max_speed_hz = pentry->max_freq;
+	pr_debug("SPI bus=%d, name=%16.16s, irq=0x%2x, max_freq=%d, cs=%d\n",
+		spi_info.bus_num,
+		spi_info.modalias,
+		spi_info.irq,
+		spi_info.max_speed_hz,
+		spi_info.chip_select);
+
+	pdata = dev->get_platform_data(&spi_info);
+
+	spi_info.platform_data = pdata;
+	if (dev->delay)
+		intel_scu_spi_device_register(&spi_info);
+	else
+		spi_register_board_info(&spi_info, 1);
+}
+
+static void __init sfi_handle_i2c_dev(struct sfi_device_table_entry *pentry,
+					struct devs_id *dev)
+{
+	struct i2c_board_info i2c_info;
+	void *pdata = NULL;
+
+	memset(&i2c_info, 0, sizeof(i2c_info));
+	strncpy(i2c_info.type, pentry->name, SFI_NAME_LEN);
+	i2c_info.irq = ((pentry->irq == (u8)0xff) ? 0 : pentry->irq);
+	i2c_info.addr = pentry->addr;
+	pr_debug("I2C bus = %d, name = %16.16s, irq = 0x%2x, addr = 0x%x\n",
+		pentry->host_num,
+		i2c_info.type,
+		i2c_info.irq,
+		i2c_info.addr);
+	pdata = dev->get_platform_data(&i2c_info);
+	i2c_info.platform_data = pdata;
+
+	if (dev->delay)
+		intel_scu_i2c_device_register(pentry->host_num, &i2c_info);
+	else
+		i2c_register_board_info(pentry->host_num, &i2c_info, 1);
+}
+
+static struct devs_id __init *get_device_id(u8 type, char *name)
+{
+	struct devs_id *dev = device_ids;
+
+	if (device_ids == NULL)
+		return NULL;
+
+	while (dev->name[0]) {
+		if (dev->type == type &&
+			!strncmp(dev->name, name, SFI_NAME_LEN)) {
+			return dev;
+		}
+		dev++;
+	}
+
+	return NULL;
+}
+
+static int __init sfi_parse_devs(struct sfi_table_header *table)
+{
+	struct sfi_table_simple *sb;
+	struct sfi_device_table_entry *pentry;
+	struct devs_id *dev = NULL;
+	int num, i;
+	int ioapic;
+	struct io_apic_irq_attr irq_attr;
+
+	sb = (struct sfi_table_simple *)table;
+	num = SFI_GET_NUM_ENTRIES(sb, struct sfi_device_table_entry);
+	pentry = (struct sfi_device_table_entry *)sb->pentry;
+
+	for (i = 0; i < num; i++, pentry++) {
+		int irq = pentry->irq;
+
+		if (irq != (u8)0xff) { /* native RTE case */
+			/* these SPI2 devices are not exposed to system as PCI
+			 * devices, but they have separate RTE entry in IOAPIC
+			 * so we have to enable them one by one here
+			 */
+			ioapic = mp_find_ioapic(irq);
+			irq_attr.ioapic = ioapic;
+			irq_attr.ioapic_pin = irq;
+			irq_attr.trigger = 1;
+			irq_attr.polarity = 1;
+			io_apic_set_pci_routing(NULL, irq, &irq_attr);
+		} else
+			irq = 0; /* No irq */
+
+		dev = get_device_id(pentry->type, pentry->name);
+
+		if ((dev == NULL) || (dev->get_platform_data == NULL))
+			continue;
+
+		if (dev->device_handler) {
+			dev->device_handler(pentry, dev);
+		} else {
+			switch (pentry->type) {
+			case SFI_DEV_TYPE_IPC:
+				sfi_handle_ipc_dev(pentry, dev);
+				break;
+			case SFI_DEV_TYPE_SPI:
+				sfi_handle_spi_dev(pentry, dev);
+				break;
+			case SFI_DEV_TYPE_I2C:
+				sfi_handle_i2c_dev(pentry, dev);
+				break;
+			case SFI_DEV_TYPE_UART:
+			case SFI_DEV_TYPE_HSI:
+			default:
+				break;
+			}
+		}
+	}
+	return 0;
+}
+
+static int __init intel_mid_platform_init(void)
+{
+	sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, sfi_parse_gpio);
+	sfi_table_parse(SFI_SIG_DEVS, NULL, NULL, sfi_parse_devs);
+	return 0;
+}
+arch_initcall(intel_mid_platform_init);
-- 
cgit 


From 0e6fdb5f036338bc38bf660c65c931b3e92a31d7 Mon Sep 17 00:00:00 2001
From: David Cohen <david.a.cohen@linux.intel.com>
Date: Thu, 17 Oct 2013 15:35:34 -0700
Subject: intel-mid: sfi: Allow struct devs_id.get_platform_data to be NULL

Intel mid sfi code doesn't need struct devs_id.get_platform_data != NULL.
If the callback is not set, just assume there is no platform_data.

Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Link: http://lkml.kernel.org/r/1382049336-21316-11-git-send-email-david.a.cohen@linux.intel.com
Cc: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/platform/intel-mid/sfi.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/arch/x86/platform/intel-mid/sfi.c b/arch/x86/platform/intel-mid/sfi.c
index 2f8196d38f53..3f1c171e5ce3 100644
--- a/arch/x86/platform/intel-mid/sfi.c
+++ b/arch/x86/platform/intel-mid/sfi.c
@@ -70,6 +70,9 @@ struct blocking_notifier_head intel_scu_notifier =
 			BLOCKING_NOTIFIER_INIT(intel_scu_notifier);
 EXPORT_SYMBOL_GPL(intel_scu_notifier);
 
+#define intel_mid_sfi_get_pdata(dev, priv)	\
+	((dev)->get_platform_data ? (dev)->get_platform_data(priv) : NULL)
+
 /* parse all the mtimer info to a static mtimer array */
 int __init sfi_parse_mtmr(struct sfi_table_header *table)
 {
@@ -334,7 +337,7 @@ static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *pentry,
 
 	pr_debug("IPC bus, name = %16.16s, irq = 0x%2x\n",
 		pentry->name, pentry->irq);
-	pdata = dev->get_platform_data(pentry);
+	pdata = intel_mid_sfi_get_pdata(dev, pentry);
 
 	pdev = platform_device_alloc(pentry->name, 0);
 	if (pdev == NULL) {
@@ -367,7 +370,7 @@ static void __init sfi_handle_spi_dev(struct sfi_device_table_entry *pentry,
 		spi_info.max_speed_hz,
 		spi_info.chip_select);
 
-	pdata = dev->get_platform_data(&spi_info);
+	pdata = intel_mid_sfi_get_pdata(dev, &spi_info);
 
 	spi_info.platform_data = pdata;
 	if (dev->delay)
@@ -391,7 +394,7 @@ static void __init sfi_handle_i2c_dev(struct sfi_device_table_entry *pentry,
 		i2c_info.type,
 		i2c_info.irq,
 		i2c_info.addr);
-	pdata = dev->get_platform_data(&i2c_info);
+	pdata = intel_mid_sfi_get_pdata(dev, &i2c_info);
 	i2c_info.platform_data = pdata;
 
 	if (dev->delay)
@@ -450,7 +453,7 @@ static int __init sfi_parse_devs(struct sfi_table_header *table)
 
 		dev = get_device_id(pentry->type, pentry->name);
 
-		if ((dev == NULL) || (dev->get_platform_data == NULL))
+		if (!dev)
 			continue;
 
 		if (dev->device_handler) {
-- 
cgit 


From 66ac50137049b3d3fab39e5ae245e1562aee5acd Mon Sep 17 00:00:00 2001
From: David Cohen <david.a.cohen@linux.intel.com>
Date: Thu, 17 Oct 2013 15:35:35 -0700
Subject: x86: intel-mid: Add section for sfi device table

When Intel mid uses SFI table to enumerate devices, it requires an extra
device table with further information about how to probe such devices.

This patch creates a section where the device table will stay if
CONFIG_X86_INTEL_MID is selected.

Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Link: http://lkml.kernel.org/r/1382049336-21316-12-git-send-email-david.a.cohen@linux.intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/kernel/vmlinux.lds.S | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 10c4f3006afd..da6b35a98260 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -199,6 +199,15 @@ SECTIONS
 		__x86_cpu_dev_end = .;
 	}
 
+#ifdef CONFIG_X86_INTEL_MID
+	.x86_intel_mid_dev.init : AT(ADDR(.x86_intel_mid_dev.init) - \
+								LOAD_OFFSET) {
+		__x86_intel_mid_dev_start = .;
+		*(.x86_intel_mid_dev.init)
+		__x86_intel_mid_dev_end = .;
+	}
+#endif
+
 	/*
 	 * start address and size of operations which during runtime
 	 * can be patched with virtualization friendly instructions or
-- 
cgit 


From 40a96d54ee2232045783e657eb9224cd723dcb40 Mon Sep 17 00:00:00 2001
From: David Cohen <david.a.cohen@linux.intel.com>
Date: Thu, 17 Oct 2013 15:35:36 -0700
Subject: intel_mid: Move platform device setups to their own
 platform_<device>.* files

As Intel rolling out more SoC's after Moorestown, we need to
re-structure the code in a way that is backward compatible and easy to
expand. This patch implements a flexible way to support multiple boards
and devices.

This patch does not add any new functional support. It just refactors
the existing code to increase the modularity and decrease the code
duplication for supporting multiple soc's and boards.

Currently intel-mid.c has both board and soc related code in one file.
This patch moves the board related code to new files and let linker
script to create SFI devite table following this:

1. Move the SFI device specific code to
   arch/x86/platform/intel-mid/device-libs/platform_<device>.*
   A new device file is added for every supported device. This code will
   get conditionally compiled by using corresponding device driver
   CONFIG option.

2. Move the device_ids location to .x86_intel_mid_dev.init section by
   using new sfi_device() macro.

This patch was based on previous code from Sathyanarayanan Kuppuswamy.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: http://lkml.kernel.org/r/1382049336-21316-13-git-send-email-david.a.cohen@linux.intel.com
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/include/asm/intel-mid.h                   |  16 +
 arch/x86/platform/intel-mid/Makefile               |   8 +-
 arch/x86/platform/intel-mid/device_libs/Makefile   |  22 ++
 .../intel-mid/device_libs/platform_bma023.c        |  20 +
 .../intel-mid/device_libs/platform_emc1403.c       |  41 ++
 .../intel-mid/device_libs/platform_gpio_keys.c     |  83 ++++
 .../platform/intel-mid/device_libs/platform_ipc.c  |  68 ++++
 .../platform/intel-mid/device_libs/platform_ipc.h  |  17 +
 .../intel-mid/device_libs/platform_lis331.c        |  39 ++
 .../intel-mid/device_libs/platform_max3111.c       |  35 ++
 .../intel-mid/device_libs/platform_max7315.c       |  79 ++++
 .../intel-mid/device_libs/platform_mpu3050.c       |  36 ++
 .../platform/intel-mid/device_libs/platform_msic.c |  87 +++++
 .../platform/intel-mid/device_libs/platform_msic.h |  19 +
 .../intel-mid/device_libs/platform_msic_audio.c    |  47 +++
 .../intel-mid/device_libs/platform_msic_battery.c  |  37 ++
 .../intel-mid/device_libs/platform_msic_gpio.c     |  48 +++
 .../intel-mid/device_libs/platform_msic_ocd.c      |  49 +++
 .../device_libs/platform_msic_power_btn.c          |  36 ++
 .../intel-mid/device_libs/platform_msic_thermal.c  |  37 ++
 .../intel-mid/device_libs/platform_pmic_gpio.c     |  54 +++
 .../intel-mid/device_libs/platform_tc35876x.c      |  36 ++
 .../intel-mid/device_libs/platform_tca6416.c       |  57 +++
 arch/x86/platform/intel-mid/intel-mid.c            | 419 ---------------------
 arch/x86/platform/intel-mid/sfi.c                  |  14 +-
 include/linux/sfi.h                                |   3 +
 26 files changed, 978 insertions(+), 429 deletions(-)
 create mode 100644 arch/x86/platform/intel-mid/device_libs/Makefile
 create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_bma023.c
 create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_emc1403.c
 create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.c
 create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_ipc.c
 create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_ipc.h
 create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_lis331.c
 create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_max3111.c
 create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_max7315.c
 create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_mpu3050.c
 create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic.c
 create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic.h
 create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_audio.c
 create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_battery.c
 create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_gpio.c
 create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_ocd.c
 create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_power_btn.c
 create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_msic_thermal.c
 create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_pmic_gpio.c
 create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c
 create mode 100644 arch/x86/platform/intel-mid/device_libs/platform_tca6416.c

diff --git a/arch/x86/include/asm/intel-mid.h b/arch/x86/include/asm/intel-mid.h
index 3b0e7a771cb5..459769d39263 100644
--- a/arch/x86/include/asm/intel-mid.h
+++ b/arch/x86/include/asm/intel-mid.h
@@ -12,8 +12,11 @@
 #define _ASM_X86_INTEL_MID_H
 
 #include <linux/sfi.h>
+#include <linux/platform_device.h>
 
 extern int intel_mid_pci_init(void);
+extern int get_gpio_by_name(const char *name);
+extern void intel_scu_device_register(struct platform_device *pdev);
 extern int __init sfi_parse_mrtc(struct sfi_table_header *table);
 extern int __init sfi_parse_mtmr(struct sfi_table_header *table);
 extern int sfi_mrtc_num;
@@ -34,6 +37,10 @@ struct devs_id {
 				struct devs_id *dev);
 };
 
+#define sfi_device(i)   \
+	static const struct devs_id *const __intel_mid_sfi_##i##_dev __used \
+	__attribute__((__section__(".x86_intel_mid_dev.init"))) = &i
+
 /*
  * Medfield is the follow-up of Moorestown, it combines two chip solution into
  * one. Other than that it also added always-on and constant tsc and lapic
@@ -55,9 +62,15 @@ static inline enum intel_mid_cpu_type intel_mid_identify_cpu(void)
 	return __intel_mid_cpu_chip;
 }
 
+static inline bool intel_mid_has_msic(void)
+{
+	return (intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_PENWELL);
+}
+
 #else /* !CONFIG_X86_INTEL_MID */
 
 #define intel_mid_identify_cpu()    (0)
+#define intel_mid_has_msic()    (0)
 
 #endif /* !CONFIG_X86_INTEL_MID */
 
@@ -94,4 +107,7 @@ extern void intel_scu_devices_destroy(void);
 
 extern void intel_mid_rtc_init(void);
 
+/* the offset for the mapping of global gpio pin to irq */
+#define INTEL_MID_IRQ_OFFSET 0x100
+
 #endif /* _ASM_X86_INTEL_MID_H */
diff --git a/arch/x86/platform/intel-mid/Makefile b/arch/x86/platform/intel-mid/Makefile
index b11e5b2de336..01cc29ea5ff7 100644
--- a/arch/x86/platform/intel-mid/Makefile
+++ b/arch/x86/platform/intel-mid/Makefile
@@ -1,5 +1,7 @@
 obj-$(CONFIG_X86_INTEL_MID) += intel-mid.o
-obj-$(CONFIG_X86_INTEL_MID)	+= intel_mid_vrtc.o
-obj-$(CONFIG_EARLY_PRINTK_INTEL_MID)	+= early_printk_intel_mid.o
+obj-$(CONFIG_X86_INTEL_MID) += intel_mid_vrtc.o
+obj-$(CONFIG_EARLY_PRINTK_INTEL_MID) += early_printk_intel_mid.o
 # SFI specific code
-obj-$(CONFIG_SFI) += sfi.o
+ifdef CONFIG_X86_INTEL_MID
+obj-$(CONFIG_SFI) += sfi.o device_libs/
+endif
diff --git a/arch/x86/platform/intel-mid/device_libs/Makefile b/arch/x86/platform/intel-mid/device_libs/Makefile
new file mode 100644
index 000000000000..097e7a7940d8
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/Makefile
@@ -0,0 +1,22 @@
+# IPC Devices
+obj-y += platform_ipc.o
+obj-$(subst m,y,$(CONFIG_MFD_INTEL_MSIC)) += platform_msic.o
+obj-$(subst m,y,$(CONFIG_SND_MFLD_MACHINE)) += platform_msic_audio.o
+obj-$(subst m,y,$(CONFIG_GPIO_MSIC)) += platform_msic_gpio.o
+obj-$(subst m,y,$(CONFIG_MFD_INTEL_MSIC)) += platform_msic_ocd.o
+obj-$(subst m,y,$(CONFIG_MFD_INTEL_MSIC)) += platform_msic_battery.o
+obj-$(subst m,y,$(CONFIG_INTEL_MID_POWER_BUTTON)) += platform_msic_power_btn.o
+obj-$(subst m,y,$(CONFIG_GPIO_INTEL_PMIC)) += platform_pmic_gpio.o
+obj-$(subst m,y,$(CONFIG_INTEL_MFLD_THERMAL)) += platform_msic_thermal.o
+# I2C Devices
+obj-$(subst m,y,$(CONFIG_SENSORS_EMC1403)) += platform_emc1403.o
+obj-$(subst m,y,$(CONFIG_SENSORS_LIS3LV02D)) += platform_lis331.o
+obj-$(subst m,y,$(CONFIG_GPIO_PCA953X)) += platform_max7315.o
+obj-$(subst m,y,$(CONFIG_INPUT_MPU3050)) += platform_mpu3050.o
+obj-$(subst m,y,$(CONFIG_INPUT_BMA150)) += platform_bma023.o
+obj-$(subst m,y,$(CONFIG_GPIO_PCA953X)) += platform_tca6416.o
+obj-$(subst m,y,$(CONFIG_DRM_MEDFIELD)) += platform_tc35876x.o
+# SPI Devices
+obj-$(subst m,y,$(CONFIG_SERIAL_MRST_MAX3110)) += platform_max3111.o
+# MISC Devices
+obj-$(subst m,y,$(CONFIG_KEYBOARD_GPIO)) += platform_gpio_keys.o
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_bma023.c b/arch/x86/platform/intel-mid/device_libs/platform_bma023.c
new file mode 100644
index 000000000000..0ae7f2ae2296
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_bma023.c
@@ -0,0 +1,20 @@
+/*
+ * platform_bma023.c: bma023 platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <asm/intel-mid.h>
+
+static const struct devs_id bma023_dev_id __initconst = {
+	.name = "bma023",
+	.type = SFI_DEV_TYPE_I2C,
+	.delay = 1,
+};
+
+sfi_device(bma023_dev_id);
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_emc1403.c b/arch/x86/platform/intel-mid/device_libs/platform_emc1403.c
new file mode 100644
index 000000000000..0d942c1d26d5
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_emc1403.c
@@ -0,0 +1,41 @@
+/*
+ * platform_emc1403.c: emc1403 platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/init.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <asm/intel-mid.h>
+
+static void __init *emc1403_platform_data(void *info)
+{
+	static short intr2nd_pdata;
+	struct i2c_board_info *i2c_info = info;
+	int intr = get_gpio_by_name("thermal_int");
+	int intr2nd = get_gpio_by_name("thermal_alert");
+
+	if (intr == -1 || intr2nd == -1)
+		return NULL;
+
+	i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
+	intr2nd_pdata = intr2nd + INTEL_MID_IRQ_OFFSET;
+
+	return &intr2nd_pdata;
+}
+
+static const struct devs_id emc1403_dev_id __initconst = {
+	.name = "emc1403",
+	.type = SFI_DEV_TYPE_I2C,
+	.delay = 1,
+	.get_platform_data = &emc1403_platform_data,
+};
+
+sfi_device(emc1403_dev_id);
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.c b/arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.c
new file mode 100644
index 000000000000..a013a4834bbe
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_gpio_keys.c
@@ -0,0 +1,83 @@
+/*
+ * platform_gpio_keys.c: gpio_keys platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/input.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/gpio.h>
+#include <linux/gpio_keys.h>
+#include <linux/platform_device.h>
+#include <asm/intel-mid.h>
+
+#define DEVICE_NAME "gpio-keys"
+
+/*
+ * we will search these buttons in SFI GPIO table (by name)
+ * and register them dynamically. Please add all possible
+ * buttons here, we will shrink them if no GPIO found.
+ */
+static struct gpio_keys_button gpio_button[] = {
+	{KEY_POWER,		-1, 1, "power_btn",	EV_KEY, 0, 3000},
+	{KEY_PROG1,		-1, 1, "prog_btn1",	EV_KEY, 0, 20},
+	{KEY_PROG2,		-1, 1, "prog_btn2",	EV_KEY, 0, 20},
+	{SW_LID,		-1, 1, "lid_switch",	EV_SW,  0, 20},
+	{KEY_VOLUMEUP,		-1, 1, "vol_up",	EV_KEY, 0, 20},
+	{KEY_VOLUMEDOWN,	-1, 1, "vol_down",	EV_KEY, 0, 20},
+	{KEY_CAMERA,		-1, 1, "camera_full",	EV_KEY, 0, 20},
+	{KEY_CAMERA_FOCUS,	-1, 1, "camera_half",	EV_KEY, 0, 20},
+	{SW_KEYPAD_SLIDE,	-1, 1, "MagSw1",	EV_SW,  0, 20},
+	{SW_KEYPAD_SLIDE,	-1, 1, "MagSw2",	EV_SW,  0, 20},
+};
+
+static struct gpio_keys_platform_data gpio_keys = {
+	.buttons	= gpio_button,
+	.rep		= 1,
+	.nbuttons	= -1, /* will fill it after search */
+};
+
+static struct platform_device pb_device = {
+	.name		= DEVICE_NAME,
+	.id		= -1,
+	.dev		= {
+		.platform_data	= &gpio_keys,
+	},
+};
+
+/*
+ * Shrink the non-existent buttons, register the gpio button
+ * device if there is some
+ */
+static int __init pb_keys_init(void)
+{
+	struct gpio_keys_button *gb = gpio_button;
+	int i, num, good = 0;
+
+	num = sizeof(gpio_button) / sizeof(struct gpio_keys_button);
+	for (i = 0; i < num; i++) {
+		gb[i].gpio = get_gpio_by_name(gb[i].desc);
+		pr_debug("info[%2d]: name = %s, gpio = %d\n", i, gb[i].desc,
+					gb[i].gpio);
+		if (gb[i].gpio == -1)
+			continue;
+
+		if (i != good)
+			gb[good] = gb[i];
+		good++;
+	}
+
+	if (good) {
+		gpio_keys.nbuttons = good;
+		return platform_device_register(&pb_device);
+	}
+	return 0;
+}
+late_initcall(pb_keys_init);
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_ipc.c b/arch/x86/platform/intel-mid/device_libs/platform_ipc.c
new file mode 100644
index 000000000000..a84b73d6c4a0
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_ipc.c
@@ -0,0 +1,68 @@
+/*
+ * platform_ipc.c: IPC platform library file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/sfi.h>
+#include <linux/gpio.h>
+#include <asm/intel-mid.h>
+#include "platform_ipc.h"
+
+void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
+				struct devs_id *dev)
+{
+	struct platform_device *pdev;
+	void *pdata = NULL;
+	static struct resource res __initdata = {
+		.name = "IRQ",
+		.flags = IORESOURCE_IRQ,
+	};
+
+	pr_debug("IPC bus, name = %16.16s, irq = 0x%2x\n",
+		pentry->name, pentry->irq);
+
+	/*
+	 * We need to call platform init of IPC devices to fill misc_pdata
+	 * structure. It will be used in msic_init for initialization.
+	 */
+	if (dev != NULL)
+		pdata = dev->get_platform_data(pentry);
+
+	/*
+	 * On Medfield the platform device creation is handled by the MSIC
+	 * MFD driver so we don't need to do it here.
+	 */
+	if (intel_mid_has_msic())
+		return;
+
+	pdev = platform_device_alloc(pentry->name, 0);
+	if (pdev == NULL) {
+		pr_err("out of memory for SFI platform device '%s'.\n",
+			pentry->name);
+		return;
+	}
+	res.start = pentry->irq;
+	platform_device_add_resources(pdev, &res, 1);
+
+	pdev->dev.platform_data = pdata;
+	intel_scu_device_register(pdev);
+}
+
+static const struct devs_id pmic_audio_dev_id __initconst = {
+	.name = "pmic_audio",
+	.type = SFI_DEV_TYPE_IPC,
+	.delay = 1,
+	.device_handler = &ipc_device_handler,
+};
+
+sfi_device(pmic_audio_dev_id);
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_ipc.h b/arch/x86/platform/intel-mid/device_libs/platform_ipc.h
new file mode 100644
index 000000000000..8f568dd79605
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_ipc.h
@@ -0,0 +1,17 @@
+/*
+ * platform_ipc.h: IPC platform library header file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _PLATFORM_IPC_H_
+#define _PLATFORM_IPC_H_
+
+extern void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
+			struct devs_id *dev) __attribute__((weak));
+#endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_lis331.c b/arch/x86/platform/intel-mid/device_libs/platform_lis331.c
new file mode 100644
index 000000000000..15278c11f714
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_lis331.c
@@ -0,0 +1,39 @@
+/*
+ * platform_lis331.c:  lis331 platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+#include <asm/intel-mid.h>
+
+static void __init *lis331dl_platform_data(void *info)
+{
+	static short intr2nd_pdata;
+	struct i2c_board_info *i2c_info = info;
+	int intr = get_gpio_by_name("accel_int");
+	int intr2nd = get_gpio_by_name("accel_2");
+
+	if (intr == -1 || intr2nd == -1)
+		return NULL;
+
+	i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
+	intr2nd_pdata = intr2nd + INTEL_MID_IRQ_OFFSET;
+
+	return &intr2nd_pdata;
+}
+
+static const struct devs_id lis331dl_dev_id __initconst = {
+	.name = "i2c_accel",
+	.type = SFI_DEV_TYPE_I2C,
+	.get_platform_data = &lis331dl_platform_data,
+};
+
+sfi_device(lis331dl_dev_id);
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_max3111.c b/arch/x86/platform/intel-mid/device_libs/platform_max3111.c
new file mode 100644
index 000000000000..afd1df94e0e5
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_max3111.c
@@ -0,0 +1,35 @@
+/*
+ * platform_max3111.c: max3111 platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/gpio.h>
+#include <linux/spi/spi.h>
+#include <asm/intel-mid.h>
+
+static void __init *max3111_platform_data(void *info)
+{
+	struct spi_board_info *spi_info = info;
+	int intr = get_gpio_by_name("max3111_int");
+
+	spi_info->mode = SPI_MODE_0;
+	if (intr == -1)
+		return NULL;
+	spi_info->irq = intr + INTEL_MID_IRQ_OFFSET;
+	return NULL;
+}
+
+static const struct devs_id max3111_dev_id __initconst = {
+	.name = "spi_max3111",
+	.type = SFI_DEV_TYPE_SPI,
+	.get_platform_data = &max3111_platform_data,
+};
+
+sfi_device(max3111_dev_id);
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_max7315.c b/arch/x86/platform/intel-mid/device_libs/platform_max7315.c
new file mode 100644
index 000000000000..94ade10024ae
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_max7315.c
@@ -0,0 +1,79 @@
+/*
+ * platform_max7315.c: max7315 platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/init.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/platform_data/pca953x.h>
+#include <asm/intel-mid.h>
+
+#define MAX7315_NUM 2
+
+static void __init *max7315_platform_data(void *info)
+{
+	static struct pca953x_platform_data max7315_pdata[MAX7315_NUM];
+	static int nr;
+	struct pca953x_platform_data *max7315 = &max7315_pdata[nr];
+	struct i2c_board_info *i2c_info = info;
+	int gpio_base, intr;
+	char base_pin_name[SFI_NAME_LEN + 1];
+	char intr_pin_name[SFI_NAME_LEN + 1];
+
+	if (nr == MAX7315_NUM) {
+		pr_err("too many max7315s, we only support %d\n",
+				MAX7315_NUM);
+		return NULL;
+	}
+	/* we have several max7315 on the board, we only need load several
+	 * instances of the same pca953x driver to cover them
+	 */
+	strcpy(i2c_info->type, "max7315");
+	if (nr++) {
+		sprintf(base_pin_name, "max7315_%d_base", nr);
+		sprintf(intr_pin_name, "max7315_%d_int", nr);
+	} else {
+		strcpy(base_pin_name, "max7315_base");
+		strcpy(intr_pin_name, "max7315_int");
+	}
+
+	gpio_base = get_gpio_by_name(base_pin_name);
+	intr = get_gpio_by_name(intr_pin_name);
+
+	if (gpio_base == -1)
+		return NULL;
+	max7315->gpio_base = gpio_base;
+	if (intr != -1) {
+		i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
+		max7315->irq_base = gpio_base + INTEL_MID_IRQ_OFFSET;
+	} else {
+		i2c_info->irq = -1;
+		max7315->irq_base = -1;
+	}
+	return max7315;
+}
+
+static const struct devs_id max7315_dev_id __initconst = {
+	.name = "i2c_max7315",
+	.type = SFI_DEV_TYPE_I2C,
+	.delay = 1,
+	.get_platform_data = &max7315_platform_data,
+};
+
+static const struct devs_id max7315_2_dev_id __initconst = {
+	.name = "i2c_max7315_2",
+	.type = SFI_DEV_TYPE_I2C,
+	.delay = 1,
+	.get_platform_data = &max7315_platform_data,
+};
+
+sfi_device(max7315_dev_id);
+sfi_device(max7315_2_dev_id);
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_mpu3050.c b/arch/x86/platform/intel-mid/device_libs/platform_mpu3050.c
new file mode 100644
index 000000000000..dd28d63c84fb
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_mpu3050.c
@@ -0,0 +1,36 @@
+/*
+ * platform_mpu3050.c: mpu3050 platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <asm/intel-mid.h>
+
+static void *mpu3050_platform_data(void *info)
+{
+	struct i2c_board_info *i2c_info = info;
+	int intr = get_gpio_by_name("mpu3050_int");
+
+	if (intr == -1)
+		return NULL;
+
+	i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
+	return NULL;
+}
+
+static const struct devs_id mpu3050_dev_id __initconst = {
+	.name = "mpu3050",
+	.type = SFI_DEV_TYPE_I2C,
+	.delay = 1,
+	.get_platform_data = &mpu3050_platform_data,
+};
+
+sfi_device(mpu3050_dev_id);
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic.c b/arch/x86/platform/intel-mid/device_libs/platform_msic.c
new file mode 100644
index 000000000000..9f4a775a69d6
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic.c
@@ -0,0 +1,87 @@
+/*
+ * platform_msic.c: MSIC platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/scatterlist.h>
+#include <linux/init.h>
+#include <linux/sfi.h>
+#include <linux/mfd/intel_msic.h>
+#include <asm/intel_scu_ipc.h>
+#include <asm/intel-mid.h>
+#include "platform_msic.h"
+
+struct intel_msic_platform_data msic_pdata;
+
+static struct resource msic_resources[] = {
+	{
+		.start	= INTEL_MSIC_IRQ_PHYS_BASE,
+		.end	= INTEL_MSIC_IRQ_PHYS_BASE + 64 - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+};
+
+static struct platform_device msic_device = {
+	.name		= "intel_msic",
+	.id		= -1,
+	.dev		= {
+		.platform_data	= &msic_pdata,
+	},
+	.num_resources	= ARRAY_SIZE(msic_resources),
+	.resource	= msic_resources,
+};
+
+static int msic_scu_status_change(struct notifier_block *nb,
+				  unsigned long code, void *data)
+{
+	if (code == SCU_DOWN) {
+		platform_device_unregister(&msic_device);
+		return 0;
+	}
+
+	return platform_device_register(&msic_device);
+}
+
+static int __init msic_init(void)
+{
+	static struct notifier_block msic_scu_notifier = {
+		.notifier_call	= msic_scu_status_change,
+	};
+
+	/*
+	 * We need to be sure that the SCU IPC is ready before MSIC device
+	 * can be registered.
+	 */
+	if (intel_mid_has_msic())
+		intel_scu_notifier_add(&msic_scu_notifier);
+
+	return 0;
+}
+arch_initcall(msic_init);
+
+/*
+ * msic_generic_platform_data - sets generic platform data for the block
+ * @info: pointer to the SFI device table entry for this block
+ * @block: MSIC block
+ *
+ * Function sets IRQ number from the SFI table entry for given device to
+ * the MSIC platform data.
+ */
+void *msic_generic_platform_data(void *info, enum intel_msic_block block)
+{
+	struct sfi_device_table_entry *entry = info;
+
+	BUG_ON(block < 0 || block >= INTEL_MSIC_BLOCK_LAST);
+	msic_pdata.irq[block] = entry->irq;
+
+	return NULL;
+}
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic.h b/arch/x86/platform/intel-mid/device_libs/platform_msic.h
new file mode 100644
index 000000000000..917eb56d77da
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic.h
@@ -0,0 +1,19 @@
+/*
+ * platform_msic.h: MSIC platform data header file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#ifndef _PLATFORM_MSIC_H_
+#define _PLATFORM_MSIC_H_
+
+extern struct intel_msic_platform_data msic_pdata;
+
+extern void *msic_generic_platform_data(void *info,
+			enum intel_msic_block block) __attribute__((weak));
+#endif
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic_audio.c b/arch/x86/platform/intel-mid/device_libs/platform_msic_audio.c
new file mode 100644
index 000000000000..29629397d2b3
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic_audio.c
@@ -0,0 +1,47 @@
+/*
+ * platform_msic_audio.c: MSIC audio platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/scatterlist.h>
+#include <linux/init.h>
+#include <linux/sfi.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/intel_msic.h>
+#include <asm/intel-mid.h>
+
+#include "platform_msic.h"
+#include "platform_ipc.h"
+
+static void *msic_audio_platform_data(void *info)
+{
+	struct platform_device *pdev;
+
+	pdev = platform_device_register_simple("sst-platform", -1, NULL, 0);
+
+	if (IS_ERR(pdev)) {
+		pr_err("failed to create audio platform device\n");
+		return NULL;
+	}
+
+	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_AUDIO);
+}
+
+static const struct devs_id msic_audio_dev_id __initconst = {
+	.name = "msic_audio",
+	.type = SFI_DEV_TYPE_IPC,
+	.delay = 1,
+	.get_platform_data = &msic_audio_platform_data,
+	.device_handler = &ipc_device_handler,
+};
+
+sfi_device(msic_audio_dev_id);
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic_battery.c b/arch/x86/platform/intel-mid/device_libs/platform_msic_battery.c
new file mode 100644
index 000000000000..f446c33df1a8
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic_battery.c
@@ -0,0 +1,37 @@
+/*
+ * platform_msic_battery.c: MSIC battery platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/scatterlist.h>
+#include <linux/init.h>
+#include <linux/sfi.h>
+#include <linux/mfd/intel_msic.h>
+#include <asm/intel-mid.h>
+
+#include "platform_msic.h"
+#include "platform_ipc.h"
+
+static void __init *msic_battery_platform_data(void *info)
+{
+	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_BATTERY);
+}
+
+static const struct devs_id msic_battery_dev_id __initconst = {
+	.name = "msic_battery",
+	.type = SFI_DEV_TYPE_IPC,
+	.delay = 1,
+	.get_platform_data = &msic_battery_platform_data,
+	.device_handler = &ipc_device_handler,
+};
+
+sfi_device(msic_battery_dev_id);
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic_gpio.c b/arch/x86/platform/intel-mid/device_libs/platform_msic_gpio.c
new file mode 100644
index 000000000000..2a4f7b1dd917
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic_gpio.c
@@ -0,0 +1,48 @@
+/*
+ * platform_msic_gpio.c: MSIC GPIO platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/scatterlist.h>
+#include <linux/sfi.h>
+#include <linux/init.h>
+#include <linux/gpio.h>
+#include <linux/mfd/intel_msic.h>
+#include <asm/intel-mid.h>
+
+#include "platform_msic.h"
+#include "platform_ipc.h"
+
+static void __init *msic_gpio_platform_data(void *info)
+{
+	static struct intel_msic_gpio_pdata msic_gpio_pdata;
+
+	int gpio = get_gpio_by_name("msic_gpio_base");
+
+	if (gpio < 0)
+		return NULL;
+
+	msic_gpio_pdata.gpio_base = gpio;
+	msic_pdata.gpio = &msic_gpio_pdata;
+
+	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_GPIO);
+}
+
+static const struct devs_id msic_gpio_dev_id __initconst = {
+	.name = "msic_gpio",
+	.type = SFI_DEV_TYPE_IPC,
+	.delay = 1,
+	.get_platform_data = &msic_gpio_platform_data,
+	.device_handler = &ipc_device_handler,
+};
+
+sfi_device(msic_gpio_dev_id);
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic_ocd.c b/arch/x86/platform/intel-mid/device_libs/platform_msic_ocd.c
new file mode 100644
index 000000000000..6497111ddb54
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic_ocd.c
@@ -0,0 +1,49 @@
+/*
+ * platform_msic_ocd.c: MSIC OCD platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/scatterlist.h>
+#include <linux/sfi.h>
+#include <linux/init.h>
+#include <linux/gpio.h>
+#include <linux/mfd/intel_msic.h>
+#include <asm/intel-mid.h>
+
+#include "platform_msic.h"
+#include "platform_ipc.h"
+
+static void __init *msic_ocd_platform_data(void *info)
+{
+	static struct intel_msic_ocd_pdata msic_ocd_pdata;
+	int gpio;
+
+	gpio = get_gpio_by_name("ocd_gpio");
+
+	if (gpio < 0)
+		return NULL;
+
+	msic_ocd_pdata.gpio = gpio;
+	msic_pdata.ocd = &msic_ocd_pdata;
+
+	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_OCD);
+}
+
+static const struct devs_id msic_ocd_dev_id __initconst = {
+	.name = "msic_ocd",
+	.type = SFI_DEV_TYPE_IPC,
+	.delay = 1,
+	.get_platform_data = &msic_ocd_platform_data,
+	.device_handler = &ipc_device_handler,
+};
+
+sfi_device(msic_ocd_dev_id);
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic_power_btn.c b/arch/x86/platform/intel-mid/device_libs/platform_msic_power_btn.c
new file mode 100644
index 000000000000..83a3459bc337
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic_power_btn.c
@@ -0,0 +1,36 @@
+/*
+ * platform_msic_power_btn.c: MSIC power btn platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/scatterlist.h>
+#include <linux/sfi.h>
+#include <linux/init.h>
+#include <linux/mfd/intel_msic.h>
+#include <asm/intel-mid.h>
+
+#include "platform_msic.h"
+#include "platform_ipc.h"
+
+static void __init *msic_power_btn_platform_data(void *info)
+{
+	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_POWER_BTN);
+}
+
+static const struct devs_id msic_power_btn_dev_id __initconst = {
+	.name = "msic_power_btn",
+	.type = SFI_DEV_TYPE_IPC,
+	.delay = 1,
+	.get_platform_data = &msic_power_btn_platform_data,
+	.device_handler = &ipc_device_handler,
+};
+
+sfi_device(msic_power_btn_dev_id);
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_msic_thermal.c b/arch/x86/platform/intel-mid/device_libs/platform_msic_thermal.c
new file mode 100644
index 000000000000..a351878b96bc
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_msic_thermal.c
@@ -0,0 +1,37 @@
+/*
+ * platform_msic_thermal.c: msic_thermal platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/input.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/intel_msic.h>
+#include <asm/intel-mid.h>
+
+#include "platform_msic.h"
+#include "platform_ipc.h"
+
+static void __init *msic_thermal_platform_data(void *info)
+{
+	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_THERMAL);
+}
+
+static const struct devs_id msic_thermal_dev_id __initconst = {
+	.name = "msic_thermal",
+	.type = SFI_DEV_TYPE_IPC,
+	.delay = 1,
+	.get_platform_data = &msic_thermal_platform_data,
+	.device_handler = &ipc_device_handler,
+};
+
+sfi_device(msic_thermal_dev_id);
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_pmic_gpio.c b/arch/x86/platform/intel-mid/device_libs/platform_pmic_gpio.c
new file mode 100644
index 000000000000..d87182a09263
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_pmic_gpio.c
@@ -0,0 +1,54 @@
+/*
+ * platform_pmic_gpio.c: PMIC GPIO platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/scatterlist.h>
+#include <linux/gpio.h>
+#include <linux/init.h>
+#include <linux/sfi.h>
+#include <linux/intel_pmic_gpio.h>
+#include <asm/intel-mid.h>
+
+#include "platform_ipc.h"
+
+static void __init *pmic_gpio_platform_data(void *info)
+{
+	static struct intel_pmic_gpio_platform_data pmic_gpio_pdata;
+	int gpio_base = get_gpio_by_name("pmic_gpio_base");
+
+	if (gpio_base == -1)
+		gpio_base = 64;
+	pmic_gpio_pdata.gpio_base = gpio_base;
+	pmic_gpio_pdata.irq_base = gpio_base + INTEL_MID_IRQ_OFFSET;
+	pmic_gpio_pdata.gpiointr = 0xffffeff8;
+
+	return &pmic_gpio_pdata;
+}
+
+static const struct devs_id pmic_gpio_spi_dev_id __initconst = {
+	.name = "pmic_gpio",
+	.type = SFI_DEV_TYPE_SPI,
+	.delay = 1,
+	.get_platform_data = &pmic_gpio_platform_data,
+};
+
+static const struct devs_id pmic_gpio_ipc_dev_id __initconst = {
+	.name = "pmic_gpio",
+	.type = SFI_DEV_TYPE_IPC,
+	.delay = 1,
+	.get_platform_data = &pmic_gpio_platform_data,
+	.device_handler = &ipc_device_handler
+};
+
+sfi_device(pmic_gpio_spi_dev_id);
+sfi_device(pmic_gpio_ipc_dev_id);
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c b/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c
new file mode 100644
index 000000000000..740fc757050c
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_tc35876x.c
@@ -0,0 +1,36 @@
+/*
+ * platform_tc35876x.c: tc35876x platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/gpio.h>
+#include <linux/i2c/tc35876x.h>
+#include <asm/intel-mid.h>
+
+/*tc35876x DSI_LVDS bridge chip and panel platform data*/
+static void *tc35876x_platform_data(void *data)
+{
+	static struct tc35876x_platform_data pdata;
+
+	/* gpio pins set to -1 will not be used by the driver */
+	pdata.gpio_bridge_reset = get_gpio_by_name("LCMB_RXEN");
+	pdata.gpio_panel_bl_en = get_gpio_by_name("6S6P_BL_EN");
+	pdata.gpio_panel_vadd = get_gpio_by_name("EN_VREG_LCD_V3P3");
+
+	return &pdata;
+}
+
+static const struct devs_id tc35876x_dev_id __initconst = {
+	.name = "i2c_disp_brig",
+	.type = SFI_DEV_TYPE_I2C,
+	.get_platform_data = &tc35876x_platform_data,
+};
+
+sfi_device(tc35876x_dev_id);
diff --git a/arch/x86/platform/intel-mid/device_libs/platform_tca6416.c b/arch/x86/platform/intel-mid/device_libs/platform_tca6416.c
new file mode 100644
index 000000000000..22881c9a6737
--- /dev/null
+++ b/arch/x86/platform/intel-mid/device_libs/platform_tca6416.c
@@ -0,0 +1,57 @@
+/*
+ * platform_tca6416.c: tca6416 platform data initilization file
+ *
+ * (C) Copyright 2013 Intel Corporation
+ * Author: Sathyanarayanan Kuppuswamy <sathyanarayanan.kuppuswamy@intel.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; version 2
+ * of the License.
+ */
+
+#include <linux/platform_data/pca953x.h>
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+#include <asm/intel-mid.h>
+
+#define TCA6416_NAME	"tca6416"
+#define TCA6416_BASE	"tca6416_base"
+#define TCA6416_INTR	"tca6416_int"
+
+static void *tca6416_platform_data(void *info)
+{
+	static struct pca953x_platform_data tca6416;
+	struct i2c_board_info *i2c_info = info;
+	int gpio_base, intr;
+	char base_pin_name[SFI_NAME_LEN + 1];
+	char intr_pin_name[SFI_NAME_LEN + 1];
+
+	strcpy(i2c_info->type, TCA6416_NAME);
+	strcpy(base_pin_name, TCA6416_BASE);
+	strcpy(intr_pin_name, TCA6416_INTR);
+
+	gpio_base = get_gpio_by_name(base_pin_name);
+	intr = get_gpio_by_name(intr_pin_name);
+
+	if (gpio_base == -1)
+		return NULL;
+	tca6416.gpio_base = gpio_base;
+	if (intr != -1) {
+		i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
+		tca6416.irq_base = gpio_base + INTEL_MID_IRQ_OFFSET;
+	} else {
+		i2c_info->irq = -1;
+		tca6416.irq_base = -1;
+	}
+	return &tca6416;
+}
+
+static const struct devs_id tca6416_dev_id __initconst = {
+	.name = "tca6416",
+	.type = SFI_DEV_TYPE_I2C,
+	.delay = 1,
+	.get_platform_data = &tca6416_platform_data,
+};
+
+sfi_device(tca6416_dev_id);
diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index 40915698b9b7..523a1c8f7f07 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -61,8 +61,6 @@ enum intel_mid_timer_options intel_mid_timer_options;
 enum intel_mid_cpu_type __intel_mid_cpu_chip;
 EXPORT_SYMBOL_GPL(__intel_mid_cpu_chip);
 
-static void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
-			struct devs_id *dev);
 static void intel_mid_power_off(void)
 {
 }
@@ -213,420 +211,3 @@ static inline int __init setup_x86_intel_mid_timer(char *arg)
 }
 __setup("x86_intel_mid_timer=", setup_x86_intel_mid_timer);
 
-/* the offset for the mapping of global gpio pin to irq */
-#define INTEL_MID_IRQ_OFFSET 0x100
-
-static void __init *pmic_gpio_platform_data(void *info)
-{
-	static struct intel_pmic_gpio_platform_data pmic_gpio_pdata;
-	int gpio_base = get_gpio_by_name("pmic_gpio_base");
-
-	if (gpio_base == -1)
-		gpio_base = 64;
-	pmic_gpio_pdata.gpio_base = gpio_base;
-	pmic_gpio_pdata.irq_base = gpio_base + INTEL_MID_IRQ_OFFSET;
-	pmic_gpio_pdata.gpiointr = 0xffffeff8;
-
-	return &pmic_gpio_pdata;
-}
-
-static void __init *max3111_platform_data(void *info)
-{
-	struct spi_board_info *spi_info = info;
-	int intr = get_gpio_by_name("max3111_int");
-
-	spi_info->mode = SPI_MODE_0;
-	if (intr == -1)
-		return NULL;
-	spi_info->irq = intr + INTEL_MID_IRQ_OFFSET;
-	return NULL;
-}
-
-/* we have multiple max7315 on the board ... */
-#define MAX7315_NUM 2
-static void __init *max7315_platform_data(void *info)
-{
-	static struct pca953x_platform_data max7315_pdata[MAX7315_NUM];
-	static int nr;
-	struct pca953x_platform_data *max7315 = &max7315_pdata[nr];
-	struct i2c_board_info *i2c_info = info;
-	int gpio_base, intr;
-	char base_pin_name[SFI_NAME_LEN + 1];
-	char intr_pin_name[SFI_NAME_LEN + 1];
-
-	if (nr == MAX7315_NUM) {
-		pr_err("too many max7315s, we only support %d\n",
-				MAX7315_NUM);
-		return NULL;
-	}
-	/* we have several max7315 on the board, we only need load several
-	 * instances of the same pca953x driver to cover them
-	 */
-	strcpy(i2c_info->type, "max7315");
-	if (nr++) {
-		sprintf(base_pin_name, "max7315_%d_base", nr);
-		sprintf(intr_pin_name, "max7315_%d_int", nr);
-	} else {
-		strcpy(base_pin_name, "max7315_base");
-		strcpy(intr_pin_name, "max7315_int");
-	}
-
-	gpio_base = get_gpio_by_name(base_pin_name);
-	intr = get_gpio_by_name(intr_pin_name);
-
-	if (gpio_base == -1)
-		return NULL;
-	max7315->gpio_base = gpio_base;
-	if (intr != -1) {
-		i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
-		max7315->irq_base = gpio_base + INTEL_MID_IRQ_OFFSET;
-	} else {
-		i2c_info->irq = -1;
-		max7315->irq_base = -1;
-	}
-	return max7315;
-}
-
-static void *tca6416_platform_data(void *info)
-{
-	static struct pca953x_platform_data tca6416;
-	struct i2c_board_info *i2c_info = info;
-	int gpio_base, intr;
-	char base_pin_name[SFI_NAME_LEN + 1];
-	char intr_pin_name[SFI_NAME_LEN + 1];
-
-	strcpy(i2c_info->type, "tca6416");
-	strcpy(base_pin_name, "tca6416_base");
-	strcpy(intr_pin_name, "tca6416_int");
-
-	gpio_base = get_gpio_by_name(base_pin_name);
-	intr = get_gpio_by_name(intr_pin_name);
-
-	if (gpio_base == -1)
-		return NULL;
-	tca6416.gpio_base = gpio_base;
-	if (intr != -1) {
-		i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
-		tca6416.irq_base = gpio_base + INTEL_MID_IRQ_OFFSET;
-	} else {
-		i2c_info->irq = -1;
-		tca6416.irq_base = -1;
-	}
-	return &tca6416;
-}
-
-static void *mpu3050_platform_data(void *info)
-{
-	struct i2c_board_info *i2c_info = info;
-	int intr = get_gpio_by_name("mpu3050_int");
-
-	if (intr == -1)
-		return NULL;
-
-	i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
-	return NULL;
-}
-
-static void __init *emc1403_platform_data(void *info)
-{
-	static short intr2nd_pdata;
-	struct i2c_board_info *i2c_info = info;
-	int intr = get_gpio_by_name("thermal_int");
-	int intr2nd = get_gpio_by_name("thermal_alert");
-
-	if (intr == -1 || intr2nd == -1)
-		return NULL;
-
-	i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
-	intr2nd_pdata = intr2nd + INTEL_MID_IRQ_OFFSET;
-
-	return &intr2nd_pdata;
-}
-
-static void __init *lis331dl_platform_data(void *info)
-{
-	static short intr2nd_pdata;
-	struct i2c_board_info *i2c_info = info;
-	int intr = get_gpio_by_name("accel_int");
-	int intr2nd = get_gpio_by_name("accel_2");
-
-	if (intr == -1 || intr2nd == -1)
-		return NULL;
-
-	i2c_info->irq = intr + INTEL_MID_IRQ_OFFSET;
-	intr2nd_pdata = intr2nd + INTEL_MID_IRQ_OFFSET;
-
-	return &intr2nd_pdata;
-}
-
-static void __init *no_platform_data(void *info)
-{
-	return NULL;
-}
-
-static struct resource msic_resources[] = {
-	{
-		.start	= INTEL_MSIC_IRQ_PHYS_BASE,
-		.end	= INTEL_MSIC_IRQ_PHYS_BASE + 64 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-};
-
-static struct intel_msic_platform_data msic_pdata;
-
-static struct platform_device msic_device = {
-	.name		= "intel_msic",
-	.id		= -1,
-	.dev		= {
-		.platform_data	= &msic_pdata,
-	},
-	.num_resources	= ARRAY_SIZE(msic_resources),
-	.resource	= msic_resources,
-};
-
-static inline bool intel_mid_has_msic(void)
-{
-	return intel_mid_identify_cpu() == INTEL_MID_CPU_CHIP_PENWELL;
-}
-
-static int msic_scu_status_change(struct notifier_block *nb,
-				  unsigned long code, void *data)
-{
-	if (code == SCU_DOWN) {
-		platform_device_unregister(&msic_device);
-		return 0;
-	}
-
-	return platform_device_register(&msic_device);
-}
-
-static int __init msic_init(void)
-{
-	static struct notifier_block msic_scu_notifier = {
-		.notifier_call	= msic_scu_status_change,
-	};
-
-	/*
-	 * We need to be sure that the SCU IPC is ready before MSIC device
-	 * can be registered.
-	 */
-	if (intel_mid_has_msic())
-		intel_scu_notifier_add(&msic_scu_notifier);
-
-	return 0;
-}
-arch_initcall(msic_init);
-
-/*
- * msic_generic_platform_data - sets generic platform data for the block
- * @info: pointer to the SFI device table entry for this block
- * @block: MSIC block
- *
- * Function sets IRQ number from the SFI table entry for given device to
- * the MSIC platform data.
- */
-static void *msic_generic_platform_data(void *info, enum intel_msic_block block)
-{
-	struct sfi_device_table_entry *entry = info;
-
-	BUG_ON(block < 0 || block >= INTEL_MSIC_BLOCK_LAST);
-	msic_pdata.irq[block] = entry->irq;
-
-	return no_platform_data(info);
-}
-
-static void *msic_battery_platform_data(void *info)
-{
-	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_BATTERY);
-}
-
-static void *msic_gpio_platform_data(void *info)
-{
-	static struct intel_msic_gpio_pdata pdata;
-	int gpio = get_gpio_by_name("msic_gpio_base");
-
-	if (gpio < 0)
-		return NULL;
-
-	pdata.gpio_base = gpio;
-	msic_pdata.gpio = &pdata;
-
-	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_GPIO);
-}
-
-static void *msic_audio_platform_data(void *info)
-{
-	struct platform_device *pdev;
-
-	pdev = platform_device_register_simple("sst-platform", -1, NULL, 0);
-	if (IS_ERR(pdev)) {
-		pr_err("failed to create audio platform device\n");
-		return NULL;
-	}
-
-	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_AUDIO);
-}
-
-static void *msic_power_btn_platform_data(void *info)
-{
-	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_POWER_BTN);
-}
-
-static void *msic_ocd_platform_data(void *info)
-{
-	static struct intel_msic_ocd_pdata pdata;
-	int gpio = get_gpio_by_name("ocd_gpio");
-
-	if (gpio < 0)
-		return NULL;
-
-	pdata.gpio = gpio;
-	msic_pdata.ocd = &pdata;
-
-	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_OCD);
-}
-
-static void *msic_thermal_platform_data(void *info)
-{
-	return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_THERMAL);
-}
-
-/* tc35876x DSI-LVDS bridge chip and panel platform data */
-static void *tc35876x_platform_data(void *data)
-{
-	static struct tc35876x_platform_data pdata;
-
-	/* gpio pins set to -1 will not be used by the driver */
-	pdata.gpio_bridge_reset = get_gpio_by_name("LCMB_RXEN");
-	pdata.gpio_panel_bl_en = get_gpio_by_name("6S6P_BL_EN");
-	pdata.gpio_panel_vadd = get_gpio_by_name("EN_VREG_LCD_V3P3");
-
-	return &pdata;
-}
-
-static const struct devs_id __initconst device_ids[] = {
-	{"bma023", SFI_DEV_TYPE_I2C, 1, &no_platform_data, NULL},
-	{"pmic_gpio", SFI_DEV_TYPE_SPI, 1, &pmic_gpio_platform_data, NULL},
-	{"pmic_gpio", SFI_DEV_TYPE_IPC, 1, &pmic_gpio_platform_data, &ipc_device_handler},
-	{"spi_max3111", SFI_DEV_TYPE_SPI, 0, &max3111_platform_data, NULL},
-	{"i2c_max7315", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data, NULL},
-	{"i2c_max7315_2", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data, NULL},
-	{"tca6416", SFI_DEV_TYPE_I2C, 1, &tca6416_platform_data, NULL},
-	{"emc1403", SFI_DEV_TYPE_I2C, 1, &emc1403_platform_data, NULL},
-	{"i2c_accel", SFI_DEV_TYPE_I2C, 0, &lis331dl_platform_data, NULL},
-	{"pmic_audio", SFI_DEV_TYPE_IPC, 1, &no_platform_data, &ipc_device_handler},
-	{"mpu3050", SFI_DEV_TYPE_I2C, 1, &mpu3050_platform_data, NULL},
-	{"i2c_disp_brig", SFI_DEV_TYPE_I2C, 0, &tc35876x_platform_data, NULL},
-
-	/* MSIC subdevices */
-	{"msic_battery", SFI_DEV_TYPE_IPC, 1, &msic_battery_platform_data, &ipc_device_handler},
-	{"msic_gpio", SFI_DEV_TYPE_IPC, 1, &msic_gpio_platform_data, &ipc_device_handler},
-	{"msic_audio", SFI_DEV_TYPE_IPC, 1, &msic_audio_platform_data, &ipc_device_handler},
-	{"msic_power_btn", SFI_DEV_TYPE_IPC, 1, &msic_power_btn_platform_data, &ipc_device_handler},
-	{"msic_ocd", SFI_DEV_TYPE_IPC, 1, &msic_ocd_platform_data, &ipc_device_handler},
-	{"msic_thermal", SFI_DEV_TYPE_IPC, 1, &msic_thermal_platform_data, &ipc_device_handler},
-	{ 0 }
-};
-
-static void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
-				struct devs_id *dev)
-{
-	struct platform_device *pdev;
-	void *pdata = NULL;
-	static struct resource res __initdata = {
-		.name = "IRQ",
-		.flags = IORESOURCE_IRQ,
-	};
-
-	pr_debug("IPC bus, name = %16.16s, irq = 0x%2x\n",
-		pentry->name, pentry->irq);
-
-	/*
-	 * We need to call platform init of IPC devices to fill misc_pdata
-	 * structure. It will be used in msic_init for initialization.
-	 */
-	if (dev != NULL)
-		pdata = dev->get_platform_data(pentry);
-
-	/*
-	 * On Medfield the platform device creation is handled by the MSIC
-	 * MFD driver so we don't need to do it here.
-	 */
-	if (intel_mid_has_msic())
-		return;
-
-	pdev = platform_device_alloc(pentry->name, 0);
-	if (pdev == NULL) {
-		pr_err("out of memory for SFI platform device '%s'.\n",
-			pentry->name);
-		return;
-	}
-	res.start = pentry->irq;
-	platform_device_add_resources(pdev, &res, 1);
-
-	pdev->dev.platform_data = pdata;
-	intel_scu_device_register(pdev);
-}
-
-
-/*
- * we will search these buttons in SFI GPIO table (by name)
- * and register them dynamically. Please add all possible
- * buttons here, we will shrink them if no GPIO found.
- */
-static struct gpio_keys_button gpio_button[] = {
-	{KEY_POWER,		-1, 1, "power_btn",	EV_KEY, 0, 3000},
-	{KEY_PROG1,		-1, 1, "prog_btn1",	EV_KEY, 0, 20},
-	{KEY_PROG2,		-1, 1, "prog_btn2",	EV_KEY, 0, 20},
-	{SW_LID,		-1, 1, "lid_switch",	EV_SW,  0, 20},
-	{KEY_VOLUMEUP,		-1, 1, "vol_up",	EV_KEY, 0, 20},
-	{KEY_VOLUMEDOWN,	-1, 1, "vol_down",	EV_KEY, 0, 20},
-	{KEY_CAMERA,		-1, 1, "camera_full",	EV_KEY, 0, 20},
-	{KEY_CAMERA_FOCUS,	-1, 1, "camera_half",	EV_KEY, 0, 20},
-	{SW_KEYPAD_SLIDE,	-1, 1, "MagSw1",	EV_SW,  0, 20},
-	{SW_KEYPAD_SLIDE,	-1, 1, "MagSw2",	EV_SW,  0, 20},
-};
-
-static struct gpio_keys_platform_data intel_mid_gpio_keys = {
-	.buttons	= gpio_button,
-	.rep		= 1,
-	.nbuttons	= -1, /* will fill it after search */
-};
-
-static struct platform_device pb_device = {
-	.name		= "gpio-keys",
-	.id		= -1,
-	.dev		= {
-		.platform_data	= &intel_mid_gpio_keys,
-	},
-};
-
-/*
- * Shrink the non-existent buttons, register the gpio button
- * device if there is some
- */
-static int __init pb_keys_init(void)
-{
-	struct gpio_keys_button *gb = gpio_button;
-	int i, num, good = 0;
-
-	num = sizeof(gpio_button) / sizeof(struct gpio_keys_button);
-	for (i = 0; i < num; i++) {
-		gb[i].gpio = get_gpio_by_name(gb[i].desc);
-		pr_debug("info[%2d]: name = %s, gpio = %d\n", i, gb[i].desc,
-					gb[i].gpio);
-		if (gb[i].gpio == -1)
-			continue;
-
-		if (i != good)
-			gb[good] = gb[i];
-		good++;
-	}
-
-	if (good) {
-		intel_mid_gpio_keys.nbuttons = good;
-		return platform_device_register(&pb_device);
-	}
-	return 0;
-}
-late_initcall(pb_keys_init);
\ No newline at end of file
diff --git a/arch/x86/platform/intel-mid/sfi.c b/arch/x86/platform/intel-mid/sfi.c
index 3f1c171e5ce3..c84c1ca396bf 100644
--- a/arch/x86/platform/intel-mid/sfi.c
+++ b/arch/x86/platform/intel-mid/sfi.c
@@ -42,7 +42,6 @@
 #include <asm/intel_scu_ipc.h>
 #include <asm/apb_timer.h>
 #include <asm/reboot.h>
-#include "intel_mid_weak_decls.h"
 
 #define	SFI_SIG_OEM0	"OEM0"
 #define MAX_IPCDEVS	24
@@ -403,19 +402,20 @@ static void __init sfi_handle_i2c_dev(struct sfi_device_table_entry *pentry,
 		i2c_register_board_info(pentry->host_num, &i2c_info, 1);
 }
 
+extern struct devs_id *const __x86_intel_mid_dev_start[],
+		      *const __x86_intel_mid_dev_end[];
+
 static struct devs_id __init *get_device_id(u8 type, char *name)
 {
-	struct devs_id *dev = device_ids;
-
-	if (device_ids == NULL)
-		return NULL;
+	struct devs_id *const *dev_table;
 
-	while (dev->name[0]) {
+	for (dev_table = __x86_intel_mid_dev_start;
+			dev_table < __x86_intel_mid_dev_end; dev_table++) {
+		struct devs_id *dev = *dev_table;
 		if (dev->type == type &&
 			!strncmp(dev->name, name, SFI_NAME_LEN)) {
 			return dev;
 		}
-		dev++;
 	}
 
 	return NULL;
diff --git a/include/linux/sfi.h b/include/linux/sfi.h
index fe817918b30e..d9b436f09925 100644
--- a/include/linux/sfi.h
+++ b/include/linux/sfi.h
@@ -59,6 +59,9 @@
 #ifndef _LINUX_SFI_H
 #define _LINUX_SFI_H
 
+#include <linux/init.h>
+#include <linux/types.h>
+
 /* Table signatures reserved by the SFI specification */
 #define SFI_SIG_SYST		"SYST"
 #define SFI_SIG_FREQ		"FREQ"
-- 
cgit 


From 6833c452c2fb47353566aa705d68541c6045c796 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Wed, 16 Oct 2013 22:05:26 -0700
Subject: ASoC: add snd_soc_of_get_dai_name() default of_xlate

Current snd_soc_of_get_dai_name() needs .of_xlate_dai_name()
callback on each component drivers.
But required behavior on almost all these drivers is
just returns its indexed driver's name.

This patch adds this feature as default behavior.
.of_xlate_dai_name() can overwrite it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/sound/soc.h  |  4 +++-
 sound/soc/soc-core.c | 28 ++++++++++++++++++++++++----
 2 files changed, 27 insertions(+), 5 deletions(-)

diff --git a/include/sound/soc.h b/include/sound/soc.h
index b13eecbaea78..6ed3dc0773cc 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -644,10 +644,12 @@ struct snd_soc_component_driver {
 struct snd_soc_component {
 	const char *name;
 	int id;
-	int num_dai;
 	struct device *dev;
 	struct list_head list;
 
+	struct snd_soc_dai_driver *dai_drv;
+	int num_dai;
+
 	const struct snd_soc_component_driver *driver;
 };
 
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 67cfb5f5ca96..0860a7f11299 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -4023,6 +4023,7 @@ __snd_soc_register_component(struct device *dev,
 
 	cmpnt->dev	= dev;
 	cmpnt->driver	= cmpnt_drv;
+	cmpnt->dai_drv	= dai_drv;
 	cmpnt->num_dai	= num_dai;
 
 	/*
@@ -4548,12 +4549,31 @@ int snd_soc_of_get_dai_name(struct device_node *of_node,
 		if (pos->dev->of_node != args.np)
 			continue;
 
-		if (!pos->driver->of_xlate_dai_name) {
-			ret = -ENOSYS;
-			break;
+		if (pos->driver->of_xlate_dai_name) {
+			ret = pos->driver->of_xlate_dai_name(pos, &args, dai_name);
+		} else {
+			int id = -1;
+
+			switch (args.args_count) {
+			case 0:
+				id = 0; /* same as dai_drv[0] */
+				break;
+			case 1:
+				id = args.args[0];
+				break;
+			default:
+				/* not supported */
+				break;
+			}
+
+			if (id < 0 || id >= pos->num_dai) {
+				ret = -EINVAL;
+			} else {
+				*dai_name = pos->dai_drv[id].name;
+				ret = 0;
+			}
 		}
 
-		ret = pos->driver->of_xlate_dai_name(pos, &args, dai_name);
 		break;
 	}
 	mutex_unlock(&client_mutex);
-- 
cgit 


From a06ccd9c3785fa5550917ae036944f4e080b5749 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Tue, 15 Oct 2013 20:14:20 +0100
Subject: regulator: core: Add ability to create a lookup alias for supply

These patches add the ability to create an alternative device on which
a lookup for a certain supply should be conducted.

A common use-case for this would be devices that are logically
represented as a collection of drivers within Linux but are are
presented as a single device from device tree. It this case it is
necessary for each sub device to locate their supply data on the main
device.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/core.c           | 170 +++++++++++++++++++++++++++++++++++++
 drivers/regulator/devres.c         | 163 +++++++++++++++++++++++++++++++++++
 include/linux/regulator/consumer.h |  79 +++++++++++++++++
 3 files changed, 412 insertions(+)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 906deb7354ed..16427de56ce8 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -53,6 +53,7 @@ static DEFINE_MUTEX(regulator_list_mutex);
 static LIST_HEAD(regulator_list);
 static LIST_HEAD(regulator_map_list);
 static LIST_HEAD(regulator_ena_gpio_list);
+static LIST_HEAD(regulator_supply_alias_list);
 static bool has_full_constraints;
 static bool board_wants_dummy_regulator;
 
@@ -83,6 +84,19 @@ struct regulator_enable_gpio {
 	unsigned int ena_gpio_invert:1;
 };
 
+/*
+ * struct regulator_supply_alias
+ *
+ * Used to map lookups for a supply onto an alternative device.
+ */
+struct regulator_supply_alias {
+	struct list_head list;
+	struct device *src_dev;
+	const char *src_supply;
+	struct device *alias_dev;
+	const char *alias_supply;
+};
+
 static int _regulator_is_enabled(struct regulator_dev *rdev);
 static int _regulator_disable(struct regulator_dev *rdev);
 static int _regulator_get_voltage(struct regulator_dev *rdev);
@@ -1173,6 +1187,32 @@ static int _regulator_get_enable_time(struct regulator_dev *rdev)
 	return rdev->desc->ops->enable_time(rdev);
 }
 
+static struct regulator_supply_alias *regulator_find_supply_alias(
+		struct device *dev, const char *supply)
+{
+	struct regulator_supply_alias *map;
+
+	list_for_each_entry(map, &regulator_supply_alias_list, list)
+		if (map->src_dev == dev && strcmp(map->src_supply, supply) == 0)
+			return map;
+
+	return NULL;
+}
+
+static void regulator_supply_alias(struct device **dev, const char **supply)
+{
+	struct regulator_supply_alias *map;
+
+	map = regulator_find_supply_alias(*dev, *supply);
+	if (map) {
+		dev_dbg(*dev, "Mapping supply %s to %s,%s\n",
+				*supply, map->alias_supply,
+				dev_name(map->alias_dev));
+		*dev = map->alias_dev;
+		*supply = map->alias_supply;
+	}
+}
+
 static struct regulator_dev *regulator_dev_lookup(struct device *dev,
 						  const char *supply,
 						  int *ret)
@@ -1182,6 +1222,8 @@ static struct regulator_dev *regulator_dev_lookup(struct device *dev,
 	struct regulator_map *map;
 	const char *devname = NULL;
 
+	regulator_supply_alias(&dev, &supply);
+
 	/* first do a dt based lookup */
 	if (dev && dev->of_node) {
 		node = of_get_regulator(dev, supply);
@@ -1432,6 +1474,134 @@ void regulator_put(struct regulator *regulator)
 }
 EXPORT_SYMBOL_GPL(regulator_put);
 
+/**
+ * regulator_register_supply_alias - Provide device alias for supply lookup
+ *
+ * @dev: device that will be given as the regulator "consumer"
+ * @id: Supply name or regulator ID
+ * @alias_dev: device that should be used to lookup the supply
+ * @alias_id: Supply name or regulator ID that should be used to lookup the
+ * supply
+ *
+ * All lookups for id on dev will instead be conducted for alias_id on
+ * alias_dev.
+ */
+int regulator_register_supply_alias(struct device *dev, const char *id,
+				    struct device *alias_dev,
+				    const char *alias_id)
+{
+	struct regulator_supply_alias *map;
+
+	map = regulator_find_supply_alias(dev, id);
+	if (map)
+		return -EEXIST;
+
+	map = kzalloc(sizeof(struct regulator_supply_alias), GFP_KERNEL);
+	if (!map)
+		return -ENOMEM;
+
+	map->src_dev = dev;
+	map->src_supply = id;
+	map->alias_dev = alias_dev;
+	map->alias_supply = alias_id;
+
+	list_add(&map->list, &regulator_supply_alias_list);
+
+	pr_info("Adding alias for supply %s,%s -> %s,%s\n",
+		id, dev_name(dev), alias_id, dev_name(alias_dev));
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(regulator_register_supply_alias);
+
+/**
+ * regulator_unregister_supply_alias - Remove device alias
+ *
+ * @dev: device that will be given as the regulator "consumer"
+ * @id: Supply name or regulator ID
+ *
+ * Remove a lookup alias if one exists for id on dev.
+ */
+void regulator_unregister_supply_alias(struct device *dev, const char *id)
+{
+	struct regulator_supply_alias *map;
+
+	map = regulator_find_supply_alias(dev, id);
+	if (map) {
+		list_del(&map->list);
+		kfree(map);
+	}
+}
+EXPORT_SYMBOL_GPL(regulator_unregister_supply_alias);
+
+/**
+ * regulator_bulk_register_supply_alias - register multiple aliases
+ *
+ * @dev: device that will be given as the regulator "consumer"
+ * @id: List of supply names or regulator IDs
+ * @alias_dev: device that should be used to lookup the supply
+ * @alias_id: List of supply names or regulator IDs that should be used to
+ * lookup the supply
+ * @num_id: Number of aliases to register
+ *
+ * @return 0 on success, an errno on failure.
+ *
+ * This helper function allows drivers to register several supply
+ * aliases in one operation.  If any of the aliases cannot be
+ * registered any aliases that were registered will be removed
+ * before returning to the caller.
+ */
+int regulator_bulk_register_supply_alias(struct device *dev, const char **id,
+					 struct device *alias_dev,
+					 const char **alias_id,
+					 int num_id)
+{
+	int i;
+	int ret;
+
+	for (i = 0; i < num_id; ++i) {
+		ret = regulator_register_supply_alias(dev, id[i], alias_dev,
+						      alias_id[i]);
+		if (ret < 0)
+			goto err;
+	}
+
+	return 0;
+
+err:
+	dev_err(dev,
+		"Failed to create supply alias %s,%s -> %s,%s\n",
+		id[i], dev_name(dev), alias_id[i], dev_name(alias_dev));
+
+	while (--i >= 0)
+		regulator_unregister_supply_alias(dev, id[i]);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_bulk_register_supply_alias);
+
+/**
+ * regulator_bulk_unregister_supply_alias - unregister multiple aliases
+ *
+ * @dev: device that will be given as the regulator "consumer"
+ * @id: List of supply names or regulator IDs
+ * @num_id: Number of aliases to unregister
+ *
+ * This helper function allows drivers to unregister several supply
+ * aliases in one operation.
+ */
+void regulator_bulk_unregister_supply_alias(struct device *dev,
+					    const char **id,
+					    int num_id)
+{
+	int i;
+
+	for (i = 0; i < num_id; ++i)
+		regulator_unregister_supply_alias(dev, id[i]);
+}
+EXPORT_SYMBOL_GPL(regulator_bulk_unregister_supply_alias);
+
+
 /* Manage enable GPIO list. Same GPIO pin can be shared among regulators */
 static int regulator_ena_gpio_request(struct regulator_dev *rdev,
 				const struct regulator_config *config)
diff --git a/drivers/regulator/devres.c b/drivers/regulator/devres.c
index 2672a029fa25..f44818b838dc 100644
--- a/drivers/regulator/devres.c
+++ b/drivers/regulator/devres.c
@@ -250,3 +250,166 @@ void devm_regulator_unregister(struct device *dev, struct regulator_dev *rdev)
 		WARN_ON(rc);
 }
 EXPORT_SYMBOL_GPL(devm_regulator_unregister);
+
+struct regulator_supply_alias_match {
+	struct device *dev;
+	const char *id;
+};
+
+static int devm_regulator_match_supply_alias(struct device *dev, void *res,
+					     void *data)
+{
+	struct regulator_supply_alias_match *match = res;
+	struct regulator_supply_alias_match *target = data;
+
+	return match->dev == target->dev && strcmp(match->id, target->id) == 0;
+}
+
+static void devm_regulator_destroy_supply_alias(struct device *dev, void *res)
+{
+	struct regulator_supply_alias_match *match = res;
+
+	regulator_unregister_supply_alias(match->dev, match->id);
+}
+
+/**
+ * devm_regulator_register_supply_alias - Resource managed
+ * regulator_register_supply_alias()
+ *
+ * @dev: device that will be given as the regulator "consumer"
+ * @id: Supply name or regulator ID
+ * @alias_dev: device that should be used to lookup the supply
+ * @alias_id: Supply name or regulator ID that should be used to lookup the
+ * supply
+ *
+ * The supply alias will automatically be unregistered when the source
+ * device is unbound.
+ */
+int devm_regulator_register_supply_alias(struct device *dev, const char *id,
+					 struct device *alias_dev,
+					 const char *alias_id)
+{
+	struct regulator_supply_alias_match *match;
+	int ret;
+
+	match = devres_alloc(devm_regulator_destroy_supply_alias,
+			   sizeof(struct regulator_supply_alias_match),
+			   GFP_KERNEL);
+	if (!match)
+		return -ENOMEM;
+
+	match->dev = dev;
+	match->id = id;
+
+	ret = regulator_register_supply_alias(dev, id, alias_dev, alias_id);
+	if (ret < 0) {
+		devres_free(match);
+		return ret;
+	}
+
+	devres_add(dev, match);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(devm_regulator_register_supply_alias);
+
+/**
+ * devm_regulator_unregister_supply_alias - Resource managed
+ * regulator_unregister_supply_alias()
+ *
+ * @dev: device that will be given as the regulator "consumer"
+ * @id: Supply name or regulator ID
+ *
+ * Unregister an alias registered with
+ * devm_regulator_register_supply_alias(). Normally this function
+ * will not need to be called and the resource management code
+ * will ensure that the resource is freed.
+ */
+void devm_regulator_unregister_supply_alias(struct device *dev, const char *id)
+{
+	struct regulator_supply_alias_match match;
+	int rc;
+
+	match.dev = dev;
+	match.id = id;
+
+	rc = devres_release(dev, devm_regulator_destroy_supply_alias,
+			    devm_regulator_match_supply_alias, &match);
+	if (rc != 0)
+		WARN_ON(rc);
+}
+EXPORT_SYMBOL_GPL(devm_regulator_unregister_supply_alias);
+
+/**
+ * devm_regulator_bulk_register_supply_alias - Managed register
+ * multiple aliases
+ *
+ * @dev: device that will be given as the regulator "consumer"
+ * @id: List of supply names or regulator IDs
+ * @alias_dev: device that should be used to lookup the supply
+ * @alias_id: List of supply names or regulator IDs that should be used to
+ * lookup the supply
+ * @num_id: Number of aliases to register
+ *
+ * @return 0 on success, an errno on failure.
+ *
+ * This helper function allows drivers to register several supply
+ * aliases in one operation, the aliases will be automatically
+ * unregisters when the source device is unbound.  If any of the
+ * aliases cannot be registered any aliases that were registered
+ * will be removed before returning to the caller.
+ */
+int devm_regulator_bulk_register_supply_alias(struct device *dev,
+					      const char **id,
+					      struct device *alias_dev,
+					      const char **alias_id,
+					      int num_id)
+{
+	int i;
+	int ret;
+
+	for (i = 0; i < num_id; ++i) {
+		ret = devm_regulator_register_supply_alias(dev, id[i],
+							   alias_dev,
+							   alias_id[i]);
+		if (ret < 0)
+			goto err;
+	}
+
+	return 0;
+
+err:
+	dev_err(dev,
+		"Failed to create supply alias %s,%s -> %s,%s\n",
+		id[i], dev_name(dev), alias_id[i], dev_name(alias_dev));
+
+	while (--i >= 0)
+		devm_regulator_unregister_supply_alias(dev, id[i]);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(devm_regulator_bulk_register_supply_alias);
+
+/**
+ * devm_regulator_bulk_unregister_supply_alias - Managed unregister
+ * multiple aliases
+ *
+ * @dev: device that will be given as the regulator "consumer"
+ * @id: List of supply names or regulator IDs
+ * @num_id: Number of aliases to unregister
+ *
+ * Unregister aliases registered with
+ * devm_regulator_bulk_register_supply_alias(). Normally this function
+ * will not need to be called and the resource management code
+ * will ensure that the resource is freed.
+ */
+void devm_regulator_bulk_unregister_supply_alias(struct device *dev,
+						 const char **id,
+						 int num_id)
+{
+	int i;
+
+	for (i = 0; i < num_id; ++i)
+		devm_regulator_unregister_supply_alias(dev, id[i]);
+}
+EXPORT_SYMBOL_GPL(devm_regulator_bulk_unregister_supply_alias);
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index 27be915caa96..e530681bea70 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -146,6 +146,32 @@ struct regulator *__must_check devm_regulator_get_optional(struct device *dev,
 void regulator_put(struct regulator *regulator);
 void devm_regulator_put(struct regulator *regulator);
 
+int regulator_register_supply_alias(struct device *dev, const char *id,
+				    struct device *alias_dev,
+				    const char *alias_id);
+void regulator_unregister_supply_alias(struct device *dev, const char *id);
+
+int regulator_bulk_register_supply_alias(struct device *dev, const char **id,
+					 struct device *alias_dev,
+					 const char **alias_id, int num_id);
+void regulator_bulk_unregister_supply_alias(struct device *dev,
+					    const char **id, int num_id);
+
+int devm_regulator_register_supply_alias(struct device *dev, const char *id,
+					 struct device *alias_dev,
+					 const char *alias_id);
+void devm_regulator_unregister_supply_alias(struct device *dev,
+					    const char *id);
+
+int devm_regulator_bulk_register_supply_alias(struct device *dev,
+					      const char **id,
+					      struct device *alias_dev,
+					      const char **alias_id,
+					      int num_id);
+void devm_regulator_bulk_unregister_supply_alias(struct device *dev,
+						 const char **id,
+						 int num_id);
+
 /* regulator output control and status */
 int __must_check regulator_enable(struct regulator *regulator);
 int regulator_disable(struct regulator *regulator);
@@ -250,6 +276,59 @@ static inline void devm_regulator_put(struct regulator *regulator)
 {
 }
 
+static inline int regulator_register_supply_alias(struct device *dev,
+						  const char *id,
+						  struct device *alias_dev,
+						  const char *alias_id)
+{
+	return 0;
+}
+
+static inline void regulator_unregister_supply_alias(struct device *dev,
+						    const char *id)
+{
+}
+
+static inline int regulator_bulk_register_supply_alias(struct device *dev,
+						       const char **id,
+						       struct device *alias_dev,
+						       const char **alias_id,
+						       int num_id)
+{
+	return 0;
+}
+
+static inline void regulator_bulk_unregister_supply_alias(struct device *dev,
+							  const char **id,
+							  int num_id)
+{
+}
+
+static inline int devm_regulator_register_supply_alias(struct device *dev,
+						       const char *id,
+						       struct device *alias_dev,
+						       const char *alias_id)
+{
+	return 0;
+}
+
+static inline void devm_regulator_unregister_supply_alias(struct device *dev,
+							  const char *id)
+{
+}
+
+static inline int devm_regulator_bulk_register_supply_alias(
+		struct device *dev, const char **id, struct device *alias_dev,
+		const char **alias_id, int num_id)
+{
+	return 0;
+}
+
+static inline void devm_regulator_bulk_unregister_supply_alias(
+		struct device *dev, const char **id, int num_id)
+{
+}
+
 static inline int regulator_enable(struct regulator *regulator)
 {
 	return 0;
-- 
cgit 


From 58f46e41c1925236a1c34873caa5d1247f846005 Mon Sep 17 00:00:00 2001
From: Trent Piepho <tpiepho@gmail.com>
Date: Tue, 1 Oct 2013 13:14:25 -0700
Subject: spi: spi-mxs: Always set LOCK_CS

There are two bits which control the CS line in the CTRL0 register:
LOCK_CS and IGNORE_CRC.  The latter would be better named DEASSERT_CS
in SPI mode.

LOCK_CS keeps CS asserted though the entire transfer.  This should
always be set.  The DMA code will always set it, explicitly on the
first segment of the first transfer, and then implicitly on all the
rest by never clearing the bit from the value read from the ctrl0
register.

The PIO code will explicitly set it for the first transfer, leave it
set for intermediate transfers, and then clear it for the final
transfer.  It should not clear it.

The only reason to not set LOCK_CS would be to attempt an altered
protocol where CS pulses between each word.  Though don't get your
hopes up if you want to do this, as the hardware doesn't appear to do
this in any sane manner.  It appears to be related to the hardware
FIFO fill level.

The code can be simplified by just setting LOCK_CS once and then not
needing to deal with it at all in the PIO and DMA transfer functions.

Signed-off-by: Trent Piepho <tpiepho@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-mxs.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index de7b1141b90f..e6172aedf859 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -79,6 +79,8 @@ static int mxs_spi_setup_transfer(struct spi_device *dev,
 
 	mxs_ssp_set_clk_rate(ssp, hz);
 
+	writel(BM_SSP_CTRL0_LOCK_CS,
+		ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
 	writel(BF_SSP_CTRL1_SSP_MODE(BV_SSP_CTRL1_SSP_MODE__SPI) |
 		     BF_SSP_CTRL1_WORD_LENGTH
 		     (BV_SSP_CTRL1_WORD_LENGTH__EIGHT_BITS) |
@@ -147,8 +149,6 @@ static inline void mxs_spi_enable(struct mxs_spi *spi)
 {
 	struct mxs_ssp *ssp = &spi->ssp;
 
-	writel(BM_SSP_CTRL0_LOCK_CS,
-		ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
 	writel(BM_SSP_CTRL0_IGNORE_CRC,
 		ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_CLR);
 }
@@ -157,8 +157,6 @@ static inline void mxs_spi_disable(struct mxs_spi *spi)
 {
 	struct mxs_ssp *ssp = &spi->ssp;
 
-	writel(BM_SSP_CTRL0_LOCK_CS,
-		ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_CLR);
 	writel(BM_SSP_CTRL0_IGNORE_CRC,
 		ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
 }
@@ -232,8 +230,6 @@ static int mxs_spi_txrx_dma(struct mxs_spi *spi, int cs,
 	ctrl0 &= ~BM_SSP_CTRL0_XFER_COUNT;
 	ctrl0 |= BM_SSP_CTRL0_DATA_XFER | mxs_spi_cs_to_reg(cs);
 
-	if (*first)
-		ctrl0 |= BM_SSP_CTRL0_LOCK_CS;
 	if (!write)
 		ctrl0 |= BM_SSP_CTRL0_READ;
 
-- 
cgit 


From f5bc7384dc4e9bf3bcf976ef0c1ac9704fa1ad43 Mon Sep 17 00:00:00 2001
From: Trent Piepho <tpiepho@gmail.com>
Date: Tue, 1 Oct 2013 13:14:32 -0700
Subject: spi: spi-mxs: Remove mxs_spi_enable and mxs_spi_disable

These functions consist of nothing but one single writel call and are
only called once.  And the names really aren't accurate or clear,
since they don't enable or disble SPI.  Rather they set the bit that
controls the state of CS at the end of transfer.  It easier to follow
the code to just set this bit with a writel() along with all the other
bits being set in the same function.

Signed-off-by: Trent Piepho <tpiepho@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-mxs.c | 22 ++++------------------
 1 file changed, 4 insertions(+), 18 deletions(-)

diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index e6172aedf859..991ee01731b2 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -145,22 +145,6 @@ static void mxs_spi_set_cs(struct mxs_spi *spi, unsigned cs)
 	writel(select, ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
 }
 
-static inline void mxs_spi_enable(struct mxs_spi *spi)
-{
-	struct mxs_ssp *ssp = &spi->ssp;
-
-	writel(BM_SSP_CTRL0_IGNORE_CRC,
-		ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_CLR);
-}
-
-static inline void mxs_spi_disable(struct mxs_spi *spi)
-{
-	struct mxs_ssp *ssp = &spi->ssp;
-
-	writel(BM_SSP_CTRL0_IGNORE_CRC,
-		ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
-}
-
 static int mxs_ssp_wait(struct mxs_spi *spi, int offset, int mask, bool set)
 {
 	const unsigned long timeout = jiffies + msecs_to_jiffies(SSP_TIMEOUT);
@@ -335,13 +319,15 @@ static int mxs_spi_txrx_pio(struct mxs_spi *spi, int cs,
 	struct mxs_ssp *ssp = &spi->ssp;
 
 	if (*first)
-		mxs_spi_enable(spi);
+		writel(BM_SSP_CTRL0_IGNORE_CRC,
+		       ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_CLR);
 
 	mxs_spi_set_cs(spi, cs);
 
 	while (len--) {
 		if (*last && len == 0)
-			mxs_spi_disable(spi);
+			writel(BM_SSP_CTRL0_IGNORE_CRC,
+			       ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
 
 		if (ssp->devid == IMX23_SSP) {
 			writel(BM_SSP_CTRL0_XFER_COUNT,
-- 
cgit 


From 75e73fa24882fb76e8ef89226893728ed0f78870 Mon Sep 17 00:00:00 2001
From: Trent Piepho <tpiepho@gmail.com>
Date: Tue, 1 Oct 2013 13:14:39 -0700
Subject: spi: spi-mxs: Always clear INGORE_CRC, to keep CS asserted

INGORE_CRC, better named DEASSERT_CS, should be cleared on all tranfers
except the last.  So instead of only clearing it on the first transfer, we
can just always clear it.  It will set on the last transfer.

This removes the only use of the "first" flag in the transfer functions, so
that flag can be then be removed.

Signed-off-by: Trent Piepho <tpiepho@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-mxs.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index 991ee01731b2..e2a9cc21dff1 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -318,9 +318,8 @@ static int mxs_spi_txrx_pio(struct mxs_spi *spi, int cs,
 {
 	struct mxs_ssp *ssp = &spi->ssp;
 
-	if (*first)
-		writel(BM_SSP_CTRL0_IGNORE_CRC,
-		       ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_CLR);
+	writel(BM_SSP_CTRL0_IGNORE_CRC,
+	       ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_CLR);
 
 	mxs_spi_set_cs(spi, cs);
 
-- 
cgit 


From 28cad125881cb10172895774d4c3a04e748bf6bf Mon Sep 17 00:00:00 2001
From: Trent Piepho <tpiepho@gmail.com>
Date: Tue, 1 Oct 2013 13:14:50 -0700
Subject: spi: spi-mxs: Change flag arguments in txrx functions to bit flags

There are three flag arguments to the PIO and DMA txrx functions.  Two
are passed as pointers to integers, even though they are input only
and not modified, which makes no sense to do.  The third is passed as
an integer.

The compiler must use an argument register or stack variable for each
flag this way.  Using bitflags in a single flag argument is more
efficient and produces smaller code, since all the flags can fit in a
single register.  And all the flag arguments get cumbersome,
especially when more are added for things like GPIO chipselects.

The "first" flag is never used, so can just be deleted.

The "last" flag is renamed to DEASSERT_CS, since that's really what it
does.  The spi_transfer cs_change flag means that CS might be
de-asserted on a transfer which is not last and not de-assert on the
last transfer, so it is not which transfer is the last we need to know
but rather the transfers after which CS should be de-asserted.

This also extends the driver to not ignore cs_change when setting the
DEASSERT_CS nee "last" flag.

Signed-off-by: Trent Piepho <tpiepho@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-mxs.c | 55 +++++++++++++++++++++++++++++----------------------
 1 file changed, 31 insertions(+), 24 deletions(-)

diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index e2a9cc21dff1..090930aa7205 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -57,6 +57,13 @@
 
 #define SG_MAXLEN		0xff00
 
+/*
+ * Flags for txrx functions.  More efficient that using an argument register for
+ * each one.
+ */
+#define TXRX_WRITE		(1<<0)	/* This is a write */
+#define TXRX_DEASSERT_CS	(1<<1)	/* De-assert CS at end of txrx */
+
 struct mxs_spi {
 	struct mxs_ssp		ssp;
 	struct completion	c;
@@ -184,7 +191,7 @@ static irqreturn_t mxs_ssp_irq_handler(int irq, void *dev_id)
 
 static int mxs_spi_txrx_dma(struct mxs_spi *spi, int cs,
 			    unsigned char *buf, int len,
-			    int *first, int *last, int write)
+			    unsigned int flags)
 {
 	struct mxs_ssp *ssp = &spi->ssp;
 	struct dma_async_tx_descriptor *desc = NULL;
@@ -214,15 +221,19 @@ static int mxs_spi_txrx_dma(struct mxs_spi *spi, int cs,
 	ctrl0 &= ~BM_SSP_CTRL0_XFER_COUNT;
 	ctrl0 |= BM_SSP_CTRL0_DATA_XFER | mxs_spi_cs_to_reg(cs);
 
-	if (!write)
+	if (!(flags & TXRX_WRITE))
 		ctrl0 |= BM_SSP_CTRL0_READ;
 
 	/* Queue the DMA data transfer. */
 	for (sg_count = 0; sg_count < sgs; sg_count++) {
+		/* Prepare the transfer descriptor. */
 		min = min(len, desc_len);
 
-		/* Prepare the transfer descriptor. */
-		if ((sg_count + 1 == sgs) && *last)
+		/*
+		 * De-assert CS on last segment if flag is set (i.e., no more
+		 * transfers will follow)
+		 */
+		if ((sg_count + 1 == sgs) && (flags & TXRX_DEASSERT_CS))
 			ctrl0 |= BM_SSP_CTRL0_IGNORE_CRC;
 
 		if (ssp->devid == IMX23_SSP) {
@@ -247,7 +258,7 @@ static int mxs_spi_txrx_dma(struct mxs_spi *spi, int cs,
 
 		sg_init_one(&dma_xfer[sg_count].sg, sg_buf, min);
 		ret = dma_map_sg(ssp->dev, &dma_xfer[sg_count].sg, 1,
-			write ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
+			(flags & TXRX_WRITE) ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
 
 		len -= min;
 		buf += min;
@@ -267,7 +278,7 @@ static int mxs_spi_txrx_dma(struct mxs_spi *spi, int cs,
 
 		desc = dmaengine_prep_slave_sg(ssp->dmach,
 				&dma_xfer[sg_count].sg, 1,
-				write ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM,
+				(flags & TXRX_WRITE) ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM,
 				DMA_PREP_INTERRUPT | DMA_CTRL_ACK);
 
 		if (!desc) {
@@ -304,7 +315,7 @@ err_vmalloc:
 	while (--sg_count >= 0) {
 err_mapped:
 		dma_unmap_sg(ssp->dev, &dma_xfer[sg_count].sg, 1,
-			write ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
+			(flags & TXRX_WRITE) ? DMA_TO_DEVICE : DMA_FROM_DEVICE);
 	}
 
 	kfree(dma_xfer);
@@ -314,7 +325,7 @@ err_mapped:
 
 static int mxs_spi_txrx_pio(struct mxs_spi *spi, int cs,
 			    unsigned char *buf, int len,
-			    int *first, int *last, int write)
+			    unsigned int flags)
 {
 	struct mxs_ssp *ssp = &spi->ssp;
 
@@ -324,7 +335,7 @@ static int mxs_spi_txrx_pio(struct mxs_spi *spi, int cs,
 	mxs_spi_set_cs(spi, cs);
 
 	while (len--) {
-		if (*last && len == 0)
+		if (len == 0 && (flags & TXRX_DEASSERT_CS))
 			writel(BM_SSP_CTRL0_IGNORE_CRC,
 			       ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
 
@@ -337,7 +348,7 @@ static int mxs_spi_txrx_pio(struct mxs_spi *spi, int cs,
 			writel(1, ssp->base + HW_SSP_XFER_SIZE);
 		}
 
-		if (write)
+		if (flags & TXRX_WRITE)
 			writel(BM_SSP_CTRL0_READ,
 				ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_CLR);
 		else
@@ -350,13 +361,13 @@ static int mxs_spi_txrx_pio(struct mxs_spi *spi, int cs,
 		if (mxs_ssp_wait(spi, HW_SSP_CTRL0, BM_SSP_CTRL0_RUN, 1))
 			return -ETIMEDOUT;
 
-		if (write)
+		if (flags & TXRX_WRITE)
 			writel(*buf, ssp->base + HW_SSP_DATA(ssp));
 
 		writel(BM_SSP_CTRL0_DATA_XFER,
 			     ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
 
-		if (!write) {
+		if (!(flags & TXRX_WRITE)) {
 			if (mxs_ssp_wait(spi, HW_SSP_STATUS(ssp),
 						BM_SSP_STATUS_FIFO_EMPTY, 0))
 				return -ETIMEDOUT;
@@ -381,13 +392,11 @@ static int mxs_spi_transfer_one(struct spi_master *master,
 {
 	struct mxs_spi *spi = spi_master_get_devdata(master);
 	struct mxs_ssp *ssp = &spi->ssp;
-	int first, last;
 	struct spi_transfer *t, *tmp_t;
+	unsigned int flag;
 	int status = 0;
 	int cs;
 
-	first = last = 0;
-
 	cs = m->spi->chip_select;
 
 	list_for_each_entry_safe(t, tmp_t, &m->transfers, transfer_list) {
@@ -396,10 +405,9 @@ static int mxs_spi_transfer_one(struct spi_master *master,
 		if (status)
 			break;
 
-		if (&t->transfer_list == m->transfers.next)
-			first = 1;
-		if (&t->transfer_list == m->transfers.prev)
-			last = 1;
+		/* De-assert on last transfer, inverted by cs_change flag */
+		flag = (&t->transfer_list == m->transfers.prev) ^ t->cs_change ?
+		       TXRX_DEASSERT_CS : 0;
 		if ((t->rx_buf && t->tx_buf) || (t->rx_dma && t->tx_dma)) {
 			dev_err(ssp->dev,
 				"Cannot send and receive simultaneously\n");
@@ -424,11 +432,11 @@ static int mxs_spi_transfer_one(struct spi_master *master,
 			if (t->tx_buf)
 				status = mxs_spi_txrx_pio(spi, cs,
 						(void *)t->tx_buf,
-						t->len, &first, &last, 1);
+						t->len, flag | TXRX_WRITE);
 			if (t->rx_buf)
 				status = mxs_spi_txrx_pio(spi, cs,
 						t->rx_buf, t->len,
-						&first, &last, 0);
+						flag);
 		} else {
 			writel(BM_SSP_CTRL1_DMA_ENABLE,
 				ssp->base + HW_SSP_CTRL1(ssp) +
@@ -437,11 +445,11 @@ static int mxs_spi_transfer_one(struct spi_master *master,
 			if (t->tx_buf)
 				status = mxs_spi_txrx_dma(spi, cs,
 						(void *)t->tx_buf, t->len,
-						&first, &last, 1);
+						flag | TXRX_WRITE);
 			if (t->rx_buf)
 				status = mxs_spi_txrx_dma(spi, cs,
 						t->rx_buf, t->len,
-						&first, &last, 0);
+						flag);
 		}
 
 		if (status) {
@@ -450,7 +458,6 @@ static int mxs_spi_transfer_one(struct spi_master *master,
 		}
 
 		m->actual_length += t->len;
-		first = last = 0;
 	}
 
 	m->status = status;
-- 
cgit 


From df23286e57ceefe427d7ff925193283a8fafe9f3 Mon Sep 17 00:00:00 2001
From: Trent Piepho <tpiepho@gmail.com>
Date: Tue, 1 Oct 2013 13:14:57 -0700
Subject: spi: spi-mxs: Fix extra CS pulses and read mode in multi-transfer
 messages

There are two bits which control the CS line in the CTRL0 register:
LOCK_CS and IGNORE_CRC.  The latter would be better named DEASSERT_CS
in SPI mode.

Setting DEASSERT_CS causes CS to be de-asserted at the end of the transfer.
It should normally be set only for the final segment of the final transfer.
The DMA code explicitly sets it in this case, but because it never clears
the bit from the ctrl0 register, it will remain set for all transfers in
subsequent messages.  This results in a CS pulse between transfers.

There is a similar problem with the read mode bit never being cleared
in DMA mode.

This patch fixes DEASSERT_CS and READ being left on in DMA mode.

Signed-off-by: Trent Piepho <tpiepho@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-mxs.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index 090930aa7205..68ea5078a9cf 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -218,7 +218,8 @@ static int mxs_spi_txrx_dma(struct mxs_spi *spi, int cs,
 	INIT_COMPLETION(spi->c);
 
 	ctrl0 = readl(ssp->base + HW_SSP_CTRL0);
-	ctrl0 &= ~BM_SSP_CTRL0_XFER_COUNT;
+	ctrl0 &= ~(BM_SSP_CTRL0_XFER_COUNT | BM_SSP_CTRL0_IGNORE_CRC |
+		 BM_SSP_CTRL0_READ);
 	ctrl0 |= BM_SSP_CTRL0_DATA_XFER | mxs_spi_cs_to_reg(cs);
 
 	if (!(flags & TXRX_WRITE))
-- 
cgit 


From 0b782f70b51b9e611a69b9d4533b44d66b2e3e75 Mon Sep 17 00:00:00 2001
From: Trent Piepho <tpiepho@gmail.com>
Date: Tue, 1 Oct 2013 13:15:04 -0700
Subject: spi: spi-mxs: Fix chip select control bits in DMA mode

In DMA mode the chip select control bits would be ORed into the CTRL0
register without first clearing the bits.  This means that after
addressing slave 1, the CTRL0 bit to address slave 1 would be still be
set when addressing slave 0, resulting in slave 1 continuing to be
addressed.

The message handling function would pass the CS value to the txrx
function, which would re-program the bits on each transfer in the
message.  The selected CS does not change during a message so this is
inefficient.  It also means there are two different sets of code for
selecting the CS, one for PIO that worked and one for DMA that didn't.

Change the code to set the CS bits in the message handling function
once.  Now the DMA and PIO txrx functions don't need to care about CS
at all.

Signed-off-by: Trent Piepho <tpiepho@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-mxs.c | 36 +++++++++++++-----------------------
 1 file changed, 13 insertions(+), 23 deletions(-)

diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index 68ea5078a9cf..a9a273e20fd2 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -140,18 +140,6 @@ static uint32_t mxs_spi_cs_to_reg(unsigned cs)
 	return select;
 }
 
-static void mxs_spi_set_cs(struct mxs_spi *spi, unsigned cs)
-{
-	const uint32_t mask =
-		BM_SSP_CTRL0_WAIT_FOR_CMD | BM_SSP_CTRL0_WAIT_FOR_IRQ;
-	uint32_t select;
-	struct mxs_ssp *ssp = &spi->ssp;
-
-	writel(mask, ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_CLR);
-	select = mxs_spi_cs_to_reg(cs);
-	writel(select, ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
-}
-
 static int mxs_ssp_wait(struct mxs_spi *spi, int offset, int mask, bool set)
 {
 	const unsigned long timeout = jiffies + msecs_to_jiffies(SSP_TIMEOUT);
@@ -189,7 +177,7 @@ static irqreturn_t mxs_ssp_irq_handler(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static int mxs_spi_txrx_dma(struct mxs_spi *spi, int cs,
+static int mxs_spi_txrx_dma(struct mxs_spi *spi,
 			    unsigned char *buf, int len,
 			    unsigned int flags)
 {
@@ -217,10 +205,11 @@ static int mxs_spi_txrx_dma(struct mxs_spi *spi, int cs,
 
 	INIT_COMPLETION(spi->c);
 
+	/* Chip select was already programmed into CTRL0 */
 	ctrl0 = readl(ssp->base + HW_SSP_CTRL0);
 	ctrl0 &= ~(BM_SSP_CTRL0_XFER_COUNT | BM_SSP_CTRL0_IGNORE_CRC |
 		 BM_SSP_CTRL0_READ);
-	ctrl0 |= BM_SSP_CTRL0_DATA_XFER | mxs_spi_cs_to_reg(cs);
+	ctrl0 |= BM_SSP_CTRL0_DATA_XFER;
 
 	if (!(flags & TXRX_WRITE))
 		ctrl0 |= BM_SSP_CTRL0_READ;
@@ -324,7 +313,7 @@ err_mapped:
 	return ret;
 }
 
-static int mxs_spi_txrx_pio(struct mxs_spi *spi, int cs,
+static int mxs_spi_txrx_pio(struct mxs_spi *spi,
 			    unsigned char *buf, int len,
 			    unsigned int flags)
 {
@@ -333,8 +322,6 @@ static int mxs_spi_txrx_pio(struct mxs_spi *spi, int cs,
 	writel(BM_SSP_CTRL0_IGNORE_CRC,
 	       ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_CLR);
 
-	mxs_spi_set_cs(spi, cs);
-
 	while (len--) {
 		if (len == 0 && (flags & TXRX_DEASSERT_CS))
 			writel(BM_SSP_CTRL0_IGNORE_CRC,
@@ -396,9 +383,12 @@ static int mxs_spi_transfer_one(struct spi_master *master,
 	struct spi_transfer *t, *tmp_t;
 	unsigned int flag;
 	int status = 0;
-	int cs;
 
-	cs = m->spi->chip_select;
+	/* Program CS register bits here, it will be used for all transfers. */
+	writel(BM_SSP_CTRL0_WAIT_FOR_CMD | BM_SSP_CTRL0_WAIT_FOR_IRQ,
+	       ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_CLR);
+	writel(mxs_spi_cs_to_reg(m->spi->chip_select),
+	       ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
 
 	list_for_each_entry_safe(t, tmp_t, &m->transfers, transfer_list) {
 
@@ -431,11 +421,11 @@ static int mxs_spi_transfer_one(struct spi_master *master,
 				STMP_OFFSET_REG_CLR);
 
 			if (t->tx_buf)
-				status = mxs_spi_txrx_pio(spi, cs,
+				status = mxs_spi_txrx_pio(spi,
 						(void *)t->tx_buf,
 						t->len, flag | TXRX_WRITE);
 			if (t->rx_buf)
-				status = mxs_spi_txrx_pio(spi, cs,
+				status = mxs_spi_txrx_pio(spi,
 						t->rx_buf, t->len,
 						flag);
 		} else {
@@ -444,11 +434,11 @@ static int mxs_spi_transfer_one(struct spi_master *master,
 				STMP_OFFSET_REG_SET);
 
 			if (t->tx_buf)
-				status = mxs_spi_txrx_dma(spi, cs,
+				status = mxs_spi_txrx_dma(spi,
 						(void *)t->tx_buf, t->len,
 						flag | TXRX_WRITE);
 			if (t->rx_buf)
-				status = mxs_spi_txrx_dma(spi, cs,
+				status = mxs_spi_txrx_dma(spi,
 						t->rx_buf, t->len,
 						flag);
 		}
-- 
cgit 


From 210f65fedf1d26d0a1d604fa82425018f7ad6090 Mon Sep 17 00:00:00 2001
From: Trent Piepho <tpiepho@gmail.com>
Date: Tue, 1 Oct 2013 13:15:11 -0700
Subject: spi: spi-mxs: Remove full duplex check, spi core already does it

Because the driver sets the SPI_MASTER_HALF_DUPLEX flag, the spi core
will check transfers to insure they are not full duplex.  It's not
necessary to check that in the spi-mxs driver as well.

Signed-off-by: Trent Piepho <tpiepho@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-mxs.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index a9a273e20fd2..de7387ef25b8 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -399,12 +399,6 @@ static int mxs_spi_transfer_one(struct spi_master *master,
 		/* De-assert on last transfer, inverted by cs_change flag */
 		flag = (&t->transfer_list == m->transfers.prev) ^ t->cs_change ?
 		       TXRX_DEASSERT_CS : 0;
-		if ((t->rx_buf && t->tx_buf) || (t->rx_dma && t->tx_dma)) {
-			dev_err(ssp->dev,
-				"Cannot send and receive simultaneously\n");
-			status = -EINVAL;
-			break;
-		}
 
 		/*
 		 * Small blocks can be transfered via PIO.
-- 
cgit 


From 1a33073fcf11e70447b704c0228e28099e6ab39d Mon Sep 17 00:00:00 2001
From: Trent Piepho <tpiepho@gmail.com>
Date: Tue, 1 Oct 2013 13:15:18 -0700
Subject: spi: spi-mxs: Remove bogus setting of ssp clk rate field

The ssp struct has a clock rate field, to provide the actual value, in Hz,
of the SSP output clock (the rate of SSP_SCK) after mxs_ssp_set_clk_rate()
is called.  It is set by mxs_ssp_set_clk_rate(), for SSP using drivers (like
SPI and MMC) to *read* if they want to know the actual clock rate.  The SPI
driver isn't supposed to *write* to it.

For some reason the spi-mxs driver decides to write to this field on init,
and sets it to the value of the SSP input clock (clk_sspN, from the MXS
clocking block) in kHz.  It shouldn't be setting the value, and certainly
shouldn't be setting it with the wrong clock in the wrong units.

Signed-off-by: Trent Piepho <tpiepho@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-mxs.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index de7387ef25b8..8cb5d8b6f042 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -536,7 +536,6 @@ static int mxs_spi_probe(struct platform_device *pdev)
 		goto out_dma_release;
 
 	clk_set_rate(ssp->clk, clk_freq);
-	ssp->clk_rate = clk_get_rate(ssp->clk) / 1000;
 
 	ret = stmp_reset_block(ssp->base);
 	if (ret)
-- 
cgit 


From 9c97e3421fa0aeec131689008181f8ee1dac5e99 Mon Sep 17 00:00:00 2001
From: Trent Piepho <tpiepho@gmail.com>
Date: Tue, 1 Oct 2013 13:15:25 -0700
Subject: spi: spi-mxs: Fix race in setup method

Despite many warnings in the SPI documentation and code, the spi-mxs
driver sets shared chip registers in the ->setup method.  This method can
be called when transfers are in progress on other slaves controlled by the
master.  Setting registers or any other shared state will corrupt those
transfers.

So fix mxs_spi_setup() to not call mxs_spi_setup_transfer().
mxs_spi_setup_transfer() is already called for each transfer when they
are actually performed in mxs_spi_transfer_one(), so the call in
mxs_spi_setup() isn't necessary to setup anything.

Signed-off-by: Trent Piepho <tpiepho@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-mxs.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index 8cb5d8b6f042..e9cbdb6b1309 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -103,21 +103,13 @@ static int mxs_spi_setup_transfer(struct spi_device *dev,
 
 static int mxs_spi_setup(struct spi_device *dev)
 {
-	int err = 0;
-
 	if (!dev->bits_per_word)
 		dev->bits_per_word = 8;
 
 	if (dev->mode & ~(SPI_CPOL | SPI_CPHA))
 		return -EINVAL;
 
-	err = mxs_spi_setup_transfer(dev, NULL);
-	if (err) {
-		dev_err(&dev->dev,
-			"Failed to setup transfer, error = %d\n", err);
-	}
-
-	return err;
+	return 0;
 }
 
 static uint32_t mxs_spi_cs_to_reg(unsigned cs)
-- 
cgit 


From d426eadb1ef166b472b09a223c30d3104fde2586 Mon Sep 17 00:00:00 2001
From: Trent Piepho <tpiepho@gmail.com>
Date: Tue, 1 Oct 2013 13:15:33 -0700
Subject: spi: spi-mxs: Remove check of spi mode bits

The spi core already checks for a slave setting mode bits that we
didn't list as supported when the master was registered.  There is no
need to do it again in the master driver.

Signed-off-by: Trent Piepho <tpiepho@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-mxs.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index e9cbdb6b1309..23cc41273dd3 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -106,9 +106,6 @@ static int mxs_spi_setup(struct spi_device *dev)
 	if (!dev->bits_per_word)
 		dev->bits_per_word = 8;
 
-	if (dev->mode & ~(SPI_CPOL | SPI_CPHA))
-		return -EINVAL;
-
 	return 0;
 }
 
-- 
cgit 


From aa9e0c6feb3e06463b45b0d9734a2cdbf95c4431 Mon Sep 17 00:00:00 2001
From: Trent Piepho <tpiepho@gmail.com>
Date: Tue, 1 Oct 2013 13:15:40 -0700
Subject: spi: spi-mxs: Clean up setup_transfer function

It can't be called with a NULL transfer anymore so it can be simplified
to not check for that.

Fix indention of line-wrapped code to Linux standard.

The transfer pointer can be const.

It's not necessary to check if the spi_transfer's speed_hz is zero, as
the spi core also fills it in from the spi_device.  However, the spi
core does not check if spi_device's speed is zero so we have to do
that still.

Signed-off-by: Trent Piepho <tpiepho@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-mxs.c | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)

diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index 23cc41273dd3..9e6101a38e85 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -70,17 +70,14 @@ struct mxs_spi {
 };
 
 static int mxs_spi_setup_transfer(struct spi_device *dev,
-				struct spi_transfer *t)
+				  const struct spi_transfer *t)
 {
 	struct mxs_spi *spi = spi_master_get_devdata(dev->master);
 	struct mxs_ssp *ssp = &spi->ssp;
-	uint32_t hz = 0;
+	const unsigned int hz = min(dev->max_speed_hz, t->speed_hz);
 
-	hz = dev->max_speed_hz;
-	if (t && t->speed_hz)
-		hz = min(hz, t->speed_hz);
 	if (hz == 0) {
-		dev_err(&dev->dev, "Cannot continue with zero clock\n");
+		dev_err(&dev->dev, "SPI clock rate of zero not allowed\n");
 		return -EINVAL;
 	}
 
@@ -88,12 +85,12 @@ static int mxs_spi_setup_transfer(struct spi_device *dev,
 
 	writel(BM_SSP_CTRL0_LOCK_CS,
 		ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
+
 	writel(BF_SSP_CTRL1_SSP_MODE(BV_SSP_CTRL1_SSP_MODE__SPI) |
-		     BF_SSP_CTRL1_WORD_LENGTH
-		     (BV_SSP_CTRL1_WORD_LENGTH__EIGHT_BITS) |
-		     ((dev->mode & SPI_CPOL) ? BM_SSP_CTRL1_POLARITY : 0) |
-		     ((dev->mode & SPI_CPHA) ? BM_SSP_CTRL1_PHASE : 0),
-		     ssp->base + HW_SSP_CTRL1(ssp));
+	       BF_SSP_CTRL1_WORD_LENGTH(BV_SSP_CTRL1_WORD_LENGTH__EIGHT_BITS) |
+	       ((dev->mode & SPI_CPOL) ? BM_SSP_CTRL1_POLARITY : 0) |
+	       ((dev->mode & SPI_CPHA) ? BM_SSP_CTRL1_PHASE : 0),
+	       ssp->base + HW_SSP_CTRL1(ssp));
 
 	writel(0x0, ssp->base + HW_SSP_CMD0);
 	writel(0x0, ssp->base + HW_SSP_CMD1);
-- 
cgit 


From a560943ead2cbded93c30c9b04886f3c743d7f00 Mon Sep 17 00:00:00 2001
From: Trent Piepho <tpiepho@gmail.com>
Date: Tue, 1 Oct 2013 13:15:47 -0700
Subject: spi: spi-mxs: Don't set clock for each xfer

mxs_spi_setup_transfer() would set the SSP SCK rate every time it was
called, which is before every transfer.  It is uncommon for the SCK rate to
change between transfers (or at all of that matter) and this causes many
unnecessary reprogrammings of the clock registers.

Code changed to only set the rate when it changes.  This significantly
speeds up short SPI messages, especially messages made up of many transfers,
as the calculation of the clock divisors is rather costly.  On an iMX287,
using spidev with messages that consist of 511 transfers of 4 bytes each at
an SCK of 48 MHz, the effective transfer rate more than doubles from about
290 KB/sec to 600 KB/sec!

Signed-off-by: Trent Piepho <tpiepho@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-mxs.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index 9e6101a38e85..759de701f050 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -67,6 +67,7 @@
 struct mxs_spi {
 	struct mxs_ssp		ssp;
 	struct completion	c;
+	unsigned int		sck;	/* Rate requested (vs actual) */
 };
 
 static int mxs_spi_setup_transfer(struct spi_device *dev,
@@ -81,7 +82,19 @@ static int mxs_spi_setup_transfer(struct spi_device *dev,
 		return -EINVAL;
 	}
 
-	mxs_ssp_set_clk_rate(ssp, hz);
+	if (hz != spi->sck) {
+		mxs_ssp_set_clk_rate(ssp, hz);
+		/*
+		 * Save requested rate, hz, rather than the actual rate,
+		 * ssp->clk_rate.  Otherwise we would set the rate every trasfer
+		 * when the actual rate is not quite the same as requested rate.
+		 */
+		spi->sck = hz;
+		/*
+		 * Perhaps we should return an error if the actual clock is
+		 * nowhere close to what was requested?
+		 */
+	}
 
 	writel(BM_SSP_CTRL0_LOCK_CS,
 		ssp->base + HW_SSP_CTRL0 + STMP_OFFSET_REG_SET);
-- 
cgit 


From 42e182f86222dee2679c19fb1ab5006354a3be62 Mon Sep 17 00:00:00 2001
From: Trent Piepho <tpiepho@gmail.com>
Date: Tue, 1 Oct 2013 13:15:54 -0700
Subject: spi: spi-mxs: Use u32 instead of uint32_t

It's consistent with all the other spi drivers that way.

Signed-off-by: Trent Piepho <tpiepho@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-mxs.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index 759de701f050..2a819f7b0241 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -119,9 +119,9 @@ static int mxs_spi_setup(struct spi_device *dev)
 	return 0;
 }
 
-static uint32_t mxs_spi_cs_to_reg(unsigned cs)
+static u32 mxs_spi_cs_to_reg(unsigned cs)
 {
-	uint32_t select = 0;
+	u32 select = 0;
 
 	/*
 	 * i.MX28 Datasheet: 17.10.1: HW_SSP_CTRL0
@@ -143,7 +143,7 @@ static int mxs_ssp_wait(struct mxs_spi *spi, int offset, int mask, bool set)
 {
 	const unsigned long timeout = jiffies + msecs_to_jiffies(SSP_TIMEOUT);
 	struct mxs_ssp *ssp = &spi->ssp;
-	uint32_t reg;
+	u32 reg;
 
 	do {
 		reg = readl_relaxed(ssp->base + offset);
@@ -187,11 +187,11 @@ static int mxs_spi_txrx_dma(struct mxs_spi *spi,
 	const int sgs = DIV_ROUND_UP(len, desc_len);
 	int sg_count;
 	int min, ret;
-	uint32_t ctrl0;
+	u32 ctrl0;
 	struct page *vm_page;
 	void *sg_buf;
 	struct {
-		uint32_t		pio[4];
+		u32			pio[4];
 		struct scatterlist	sg;
 	} *dma_xfer;
 
-- 
cgit 


From ad361f093c1e31d0b43946210a32ab4ff5c49850 Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Thu, 1 Nov 2012 17:14:45 +0100
Subject: KVM: ARM: Support hugetlbfs backed huge pages

Support huge pages in KVM/ARM and KVM/ARM64.  The pud_huge checking on
the unmap path may feel a bit silly as the pud_huge check is always
defined to false, but the compiler should be smart about this.

Note: This deals only with VMAs marked as huge which are allocated by
users through hugetlbfs only.  Transparent huge pages can only be
detected by looking at the underlying pages (or the page tables
themselves) and this patch so far simply maps these on a page-by-page
level in the Stage-2 page tables.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm/include/asm/kvm_mmu.h         |  17 +++-
 arch/arm/include/asm/pgtable-3level.h  |   2 +
 arch/arm/kvm/mmu.c                     | 169 +++++++++++++++++++++++++--------
 arch/arm64/include/asm/kvm_mmu.h       |  12 ++-
 arch/arm64/include/asm/pgtable-hwdef.h |   2 +
 5 files changed, 158 insertions(+), 44 deletions(-)

diff --git a/arch/arm/include/asm/kvm_mmu.h b/arch/arm/include/asm/kvm_mmu.h
index 9b28c41f4ba9..77de4a41cc50 100644
--- a/arch/arm/include/asm/kvm_mmu.h
+++ b/arch/arm/include/asm/kvm_mmu.h
@@ -62,6 +62,12 @@ phys_addr_t kvm_get_idmap_vector(void);
 int kvm_mmu_init(void);
 void kvm_clear_hyp_idmap(void);
 
+static inline void kvm_set_pmd(pmd_t *pmd, pmd_t new_pmd)
+{
+	*pmd = new_pmd;
+	flush_pmd_entry(pmd);
+}
+
 static inline void kvm_set_pte(pte_t *pte, pte_t new_pte)
 {
 	*pte = new_pte;
@@ -103,9 +109,15 @@ static inline void kvm_set_s2pte_writable(pte_t *pte)
 	pte_val(*pte) |= L_PTE_S2_RDWR;
 }
 
+static inline void kvm_set_s2pmd_writable(pmd_t *pmd)
+{
+	pmd_val(*pmd) |= L_PMD_S2_RDWR;
+}
+
 struct kvm;
 
-static inline void coherent_icache_guest_page(struct kvm *kvm, gfn_t gfn)
+static inline void coherent_icache_guest_page(struct kvm *kvm, hva_t hva,
+					      unsigned long size)
 {
 	/*
 	 * If we are going to insert an instruction page and the icache is
@@ -120,8 +132,7 @@ static inline void coherent_icache_guest_page(struct kvm *kvm, gfn_t gfn)
 	 * need any kind of flushing (DDI 0406C.b - Page B3-1392).
 	 */
 	if (icache_is_pipt()) {
-		unsigned long hva = gfn_to_hva(kvm, gfn);
-		__cpuc_coherent_user_range(hva, hva + PAGE_SIZE);
+		__cpuc_coherent_user_range(hva, hva + size);
 	} else if (!icache_is_vivt_asid_tagged()) {
 		/* any kind of VIPT cache */
 		__flush_icache_all();
diff --git a/arch/arm/include/asm/pgtable-3level.h b/arch/arm/include/asm/pgtable-3level.h
index 5689c18c85f5..a331d2527342 100644
--- a/arch/arm/include/asm/pgtable-3level.h
+++ b/arch/arm/include/asm/pgtable-3level.h
@@ -126,6 +126,8 @@
 #define L_PTE_S2_RDONLY		 (_AT(pteval_t, 1) << 6)   /* HAP[1]   */
 #define L_PTE_S2_RDWR		 (_AT(pteval_t, 3) << 6)   /* HAP[2:1] */
 
+#define L_PMD_S2_RDWR		 (_AT(pmdval_t, 3) << 6)   /* HAP[2:1] */
+
 /*
  * Hyp-mode PL2 PTE definitions for LPAE.
  */
diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index b0de86b56c13..745d8b1630cc 100644
--- a/arch/arm/kvm/mmu.c
+++ b/arch/arm/kvm/mmu.c
@@ -19,6 +19,7 @@
 #include <linux/mman.h>
 #include <linux/kvm_host.h>
 #include <linux/io.h>
+#include <linux/hugetlb.h>
 #include <trace/events/kvm.h>
 #include <asm/pgalloc.h>
 #include <asm/cacheflush.h>
@@ -41,6 +42,8 @@ static unsigned long hyp_idmap_start;
 static unsigned long hyp_idmap_end;
 static phys_addr_t hyp_idmap_vector;
 
+#define kvm_pmd_huge(_x)	(pmd_huge(_x))
+
 static void kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa)
 {
 	/*
@@ -93,19 +96,29 @@ static bool page_empty(void *ptr)
 
 static void clear_pud_entry(struct kvm *kvm, pud_t *pud, phys_addr_t addr)
 {
-	pmd_t *pmd_table = pmd_offset(pud, 0);
-	pud_clear(pud);
-	kvm_tlb_flush_vmid_ipa(kvm, addr);
-	pmd_free(NULL, pmd_table);
+	if (pud_huge(*pud)) {
+		pud_clear(pud);
+		kvm_tlb_flush_vmid_ipa(kvm, addr);
+	} else {
+		pmd_t *pmd_table = pmd_offset(pud, 0);
+		pud_clear(pud);
+		kvm_tlb_flush_vmid_ipa(kvm, addr);
+		pmd_free(NULL, pmd_table);
+	}
 	put_page(virt_to_page(pud));
 }
 
 static void clear_pmd_entry(struct kvm *kvm, pmd_t *pmd, phys_addr_t addr)
 {
-	pte_t *pte_table = pte_offset_kernel(pmd, 0);
-	pmd_clear(pmd);
-	kvm_tlb_flush_vmid_ipa(kvm, addr);
-	pte_free_kernel(NULL, pte_table);
+	if (kvm_pmd_huge(*pmd)) {
+		pmd_clear(pmd);
+		kvm_tlb_flush_vmid_ipa(kvm, addr);
+	} else {
+		pte_t *pte_table = pte_offset_kernel(pmd, 0);
+		pmd_clear(pmd);
+		kvm_tlb_flush_vmid_ipa(kvm, addr);
+		pte_free_kernel(NULL, pte_table);
+	}
 	put_page(virt_to_page(pmd));
 }
 
@@ -136,18 +149,32 @@ static void unmap_range(struct kvm *kvm, pgd_t *pgdp,
 			continue;
 		}
 
+		if (pud_huge(*pud)) {
+			/*
+			 * If we are dealing with a huge pud, just clear it and
+			 * move on.
+			 */
+			clear_pud_entry(kvm, pud, addr);
+			addr = pud_addr_end(addr, end);
+			continue;
+		}
+
 		pmd = pmd_offset(pud, addr);
 		if (pmd_none(*pmd)) {
 			addr = pmd_addr_end(addr, end);
 			continue;
 		}
 
-		pte = pte_offset_kernel(pmd, addr);
-		clear_pte_entry(kvm, pte, addr);
-		next = addr + PAGE_SIZE;
+		if (!kvm_pmd_huge(*pmd)) {
+			pte = pte_offset_kernel(pmd, addr);
+			clear_pte_entry(kvm, pte, addr);
+			next = addr + PAGE_SIZE;
+		}
 
-		/* If we emptied the pte, walk back up the ladder */
-		if (page_empty(pte)) {
+		/*
+		 * If the pmd entry is to be cleared, walk back up the ladder
+		 */
+		if (kvm_pmd_huge(*pmd) || page_empty(pte)) {
 			clear_pmd_entry(kvm, pmd, addr);
 			next = pmd_addr_end(addr, end);
 			if (page_empty(pmd) && !page_empty(pud)) {
@@ -420,29 +447,71 @@ void kvm_free_stage2_pgd(struct kvm *kvm)
 	kvm->arch.pgd = NULL;
 }
 
-
-static int stage2_set_pte(struct kvm *kvm, struct kvm_mmu_memory_cache *cache,
-			  phys_addr_t addr, const pte_t *new_pte, bool iomap)
+static pmd_t *stage2_get_pmd(struct kvm *kvm, struct kvm_mmu_memory_cache *cache,
+			     phys_addr_t addr)
 {
 	pgd_t *pgd;
 	pud_t *pud;
 	pmd_t *pmd;
-	pte_t *pte, old_pte;
 
-	/* Create 2nd stage page table mapping - Level 1 */
 	pgd = kvm->arch.pgd + pgd_index(addr);
 	pud = pud_offset(pgd, addr);
 	if (pud_none(*pud)) {
 		if (!cache)
-			return 0; /* ignore calls from kvm_set_spte_hva */
+			return NULL;
 		pmd = mmu_memory_cache_alloc(cache);
 		pud_populate(NULL, pud, pmd);
 		get_page(virt_to_page(pud));
 	}
 
-	pmd = pmd_offset(pud, addr);
+	return pmd_offset(pud, addr);
+}
+
+static int stage2_set_pmd_huge(struct kvm *kvm, struct kvm_mmu_memory_cache
+			       *cache, phys_addr_t addr, const pmd_t *new_pmd)
+{
+	pmd_t *pmd, old_pmd;
+
+	pmd = stage2_get_pmd(kvm, cache, addr);
+	VM_BUG_ON(!pmd);
 
-	/* Create 2nd stage page table mapping - Level 2 */
+	/*
+	 * Mapping in huge pages should only happen through a fault.  If a
+	 * page is merged into a transparent huge page, the individual
+	 * subpages of that huge page should be unmapped through MMU
+	 * notifiers before we get here.
+	 *
+	 * Merging of CompoundPages is not supported; they should become
+	 * splitting first, unmapped, merged, and mapped back in on-demand.
+	 */
+	VM_BUG_ON(pmd_present(*pmd) && pmd_pfn(*pmd) != pmd_pfn(*new_pmd));
+
+	old_pmd = *pmd;
+	kvm_set_pmd(pmd, *new_pmd);
+	if (pmd_present(old_pmd))
+		kvm_tlb_flush_vmid_ipa(kvm, addr);
+	else
+		get_page(virt_to_page(pmd));
+	return 0;
+}
+
+static int stage2_set_pte(struct kvm *kvm, struct kvm_mmu_memory_cache *cache,
+			  phys_addr_t addr, const pte_t *new_pte, bool iomap)
+{
+	pmd_t *pmd;
+	pte_t *pte, old_pte;
+
+	/* Create stage-2 page table mapping - Level 1 */
+	pmd = stage2_get_pmd(kvm, cache, addr);
+	if (!pmd) {
+		/*
+		 * Ignore calls from kvm_set_spte_hva for unallocated
+		 * address ranges.
+		 */
+		return 0;
+	}
+
+	/* Create stage-2 page mappings - Level 2 */
 	if (pmd_none(*pmd)) {
 		if (!cache)
 			return 0; /* ignore calls from kvm_set_spte_hva */
@@ -508,15 +577,18 @@ out:
 }
 
 static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
-			  gfn_t gfn, struct kvm_memory_slot *memslot,
+			  struct kvm_memory_slot *memslot,
 			  unsigned long fault_status)
 {
-	pte_t new_pte;
-	pfn_t pfn;
 	int ret;
-	bool write_fault, writable;
+	bool write_fault, writable, hugetlb = false;
 	unsigned long mmu_seq;
+	gfn_t gfn = fault_ipa >> PAGE_SHIFT;
+	unsigned long hva = gfn_to_hva(vcpu->kvm, gfn);
+	struct kvm *kvm = vcpu->kvm;
 	struct kvm_mmu_memory_cache *memcache = &vcpu->arch.mmu_page_cache;
+	struct vm_area_struct *vma;
+	pfn_t pfn;
 
 	write_fault = kvm_is_write_fault(kvm_vcpu_get_hsr(vcpu));
 	if (fault_status == FSC_PERM && !write_fault) {
@@ -524,6 +596,15 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 		return -EFAULT;
 	}
 
+	/* Let's check if we will get back a huge page backed by hugetlbfs */
+	down_read(&current->mm->mmap_sem);
+	vma = find_vma_intersection(current->mm, hva, hva + 1);
+	if (is_vm_hugetlb_page(vma)) {
+		hugetlb = true;
+		gfn = (fault_ipa & PMD_MASK) >> PAGE_SHIFT;
+	}
+	up_read(&current->mm->mmap_sem);
+
 	/* We need minimum second+third level pages */
 	ret = mmu_topup_memory_cache(memcache, 2, KVM_NR_MEM_OBJS);
 	if (ret)
@@ -541,26 +622,38 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 	 */
 	smp_rmb();
 
-	pfn = gfn_to_pfn_prot(vcpu->kvm, gfn, write_fault, &writable);
+	pfn = gfn_to_pfn_prot(kvm, gfn, write_fault, &writable);
 	if (is_error_pfn(pfn))
 		return -EFAULT;
 
-	new_pte = pfn_pte(pfn, PAGE_S2);
-	coherent_icache_guest_page(vcpu->kvm, gfn);
-
-	spin_lock(&vcpu->kvm->mmu_lock);
-	if (mmu_notifier_retry(vcpu->kvm, mmu_seq))
+	spin_lock(&kvm->mmu_lock);
+	if (mmu_notifier_retry(kvm, mmu_seq))
 		goto out_unlock;
-	if (writable) {
-		kvm_set_s2pte_writable(&new_pte);
-		kvm_set_pfn_dirty(pfn);
+
+	if (hugetlb) {
+		pmd_t new_pmd = pfn_pmd(pfn, PAGE_S2);
+		new_pmd = pmd_mkhuge(new_pmd);
+		if (writable) {
+			kvm_set_s2pmd_writable(&new_pmd);
+			kvm_set_pfn_dirty(pfn);
+		}
+		coherent_icache_guest_page(kvm, hva & PMD_MASK, PMD_SIZE);
+		ret = stage2_set_pmd_huge(kvm, memcache, fault_ipa, &new_pmd);
+	} else {
+		pte_t new_pte = pfn_pte(pfn, PAGE_S2);
+		if (writable) {
+			kvm_set_s2pte_writable(&new_pte);
+			kvm_set_pfn_dirty(pfn);
+		}
+		coherent_icache_guest_page(kvm, hva, PAGE_SIZE);
+		ret = stage2_set_pte(kvm, memcache, fault_ipa, &new_pte, false);
 	}
-	stage2_set_pte(vcpu->kvm, memcache, fault_ipa, &new_pte, false);
+
 
 out_unlock:
-	spin_unlock(&vcpu->kvm->mmu_lock);
+	spin_unlock(&kvm->mmu_lock);
 	kvm_release_pfn_clean(pfn);
-	return 0;
+	return ret;
 }
 
 /**
@@ -629,7 +722,7 @@ int kvm_handle_guest_abort(struct kvm_vcpu *vcpu, struct kvm_run *run)
 
 	memslot = gfn_to_memslot(vcpu->kvm, gfn);
 
-	ret = user_mem_abort(vcpu, fault_ipa, gfn, memslot, fault_status);
+	ret = user_mem_abort(vcpu, fault_ipa, memslot, fault_status);
 	if (ret == 0)
 		ret = 1;
 out_unlock:
diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h
index efe609c6a3c9..680f74e67497 100644
--- a/arch/arm64/include/asm/kvm_mmu.h
+++ b/arch/arm64/include/asm/kvm_mmu.h
@@ -91,6 +91,7 @@ int kvm_mmu_init(void);
 void kvm_clear_hyp_idmap(void);
 
 #define	kvm_set_pte(ptep, pte)		set_pte(ptep, pte)
+#define	kvm_set_pmd(pmdp, pmd)		set_pmd(pmdp, pmd)
 
 static inline bool kvm_is_write_fault(unsigned long esr)
 {
@@ -116,13 +117,18 @@ static inline void kvm_set_s2pte_writable(pte_t *pte)
 	pte_val(*pte) |= PTE_S2_RDWR;
 }
 
+static inline void kvm_set_s2pmd_writable(pmd_t *pmd)
+{
+	pmd_val(*pmd) |= PMD_S2_RDWR;
+}
+
 struct kvm;
 
-static inline void coherent_icache_guest_page(struct kvm *kvm, gfn_t gfn)
+static inline void coherent_icache_guest_page(struct kvm *kvm, hva_t hva,
+					      unsigned long size)
 {
 	if (!icache_is_aliasing()) {		/* PIPT */
-		unsigned long hva = gfn_to_hva(kvm, gfn);
-		flush_icache_range(hva, hva + PAGE_SIZE);
+		flush_icache_range(hva, hva + size);
 	} else if (!icache_is_aivivt()) {	/* non ASID-tagged VIVT */
 		/* any kind of VIPT cache */
 		__flush_icache_all();
diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h
index d57e66845c86..755f86143320 100644
--- a/arch/arm64/include/asm/pgtable-hwdef.h
+++ b/arch/arm64/include/asm/pgtable-hwdef.h
@@ -85,6 +85,8 @@
 #define PTE_S2_RDONLY		(_AT(pteval_t, 1) << 6)   /* HAP[2:1] */
 #define PTE_S2_RDWR		(_AT(pteval_t, 3) << 6)   /* HAP[2:1] */
 
+#define PMD_S2_RDWR		(_AT(pmdval_t, 3) << 6)   /* HAP[2:1] */
+
 /*
  * Memory Attribute override for Stage-2 (MemAttr[3:0])
  */
-- 
cgit 


From 9b5fdb9781f74fb15827e465bfb5aa63211953c8 Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Wed, 2 Oct 2013 15:32:01 -0700
Subject: KVM: ARM: Transparent huge page (THP) support

Support transparent huge pages in KVM/ARM and KVM/ARM64.  The
transparent_hugepage_adjust is not very pretty, but this is also how
it's solved on x86 and seems to be simply an artifact on how THPs
behave.  This should eventually be shared across architectures if
possible, but that can always be changed down the road.

Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm/kvm/mmu.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 56 insertions(+), 2 deletions(-)

diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index 745d8b1630cc..371958370de4 100644
--- a/arch/arm/kvm/mmu.c
+++ b/arch/arm/kvm/mmu.c
@@ -42,7 +42,7 @@ static unsigned long hyp_idmap_start;
 static unsigned long hyp_idmap_end;
 static phys_addr_t hyp_idmap_vector;
 
-#define kvm_pmd_huge(_x)	(pmd_huge(_x))
+#define kvm_pmd_huge(_x)	(pmd_huge(_x) || pmd_trans_huge(_x))
 
 static void kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa)
 {
@@ -576,12 +576,53 @@ out:
 	return ret;
 }
 
+static bool transparent_hugepage_adjust(pfn_t *pfnp, phys_addr_t *ipap)
+{
+	pfn_t pfn = *pfnp;
+	gfn_t gfn = *ipap >> PAGE_SHIFT;
+
+	if (PageTransCompound(pfn_to_page(pfn))) {
+		unsigned long mask;
+		/*
+		 * The address we faulted on is backed by a transparent huge
+		 * page.  However, because we map the compound huge page and
+		 * not the individual tail page, we need to transfer the
+		 * refcount to the head page.  We have to be careful that the
+		 * THP doesn't start to split while we are adjusting the
+		 * refcounts.
+		 *
+		 * We are sure this doesn't happen, because mmu_notifier_retry
+		 * was successful and we are holding the mmu_lock, so if this
+		 * THP is trying to split, it will be blocked in the mmu
+		 * notifier before touching any of the pages, specifically
+		 * before being able to call __split_huge_page_refcount().
+		 *
+		 * We can therefore safely transfer the refcount from PG_tail
+		 * to PG_head and switch the pfn from a tail page to the head
+		 * page accordingly.
+		 */
+		mask = PTRS_PER_PMD - 1;
+		VM_BUG_ON((gfn & mask) != (pfn & mask));
+		if (pfn & mask) {
+			*ipap &= PMD_MASK;
+			kvm_release_pfn_clean(pfn);
+			pfn &= ~mask;
+			kvm_get_pfn(pfn);
+			*pfnp = pfn;
+		}
+
+		return true;
+	}
+
+	return false;
+}
+
 static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 			  struct kvm_memory_slot *memslot,
 			  unsigned long fault_status)
 {
 	int ret;
-	bool write_fault, writable, hugetlb = false;
+	bool write_fault, writable, hugetlb = false, force_pte = false;
 	unsigned long mmu_seq;
 	gfn_t gfn = fault_ipa >> PAGE_SHIFT;
 	unsigned long hva = gfn_to_hva(vcpu->kvm, gfn);
@@ -602,6 +643,17 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 	if (is_vm_hugetlb_page(vma)) {
 		hugetlb = true;
 		gfn = (fault_ipa & PMD_MASK) >> PAGE_SHIFT;
+	} else {
+		/*
+		 * Pages belonging to VMAs not aligned to the PMD mapping
+		 * granularity cannot be mapped using block descriptors even
+		 * if the pages belong to a THP for the process, because the
+		 * stage-2 block descriptor will cover more than a single THP
+		 * and we loose atomicity for unmapping, updates, and splits
+		 * of the THP or other pages in the stage-2 block range.
+		 */
+		if (vma->vm_start & ~PMD_MASK)
+			force_pte = true;
 	}
 	up_read(&current->mm->mmap_sem);
 
@@ -629,6 +681,8 @@ static int user_mem_abort(struct kvm_vcpu *vcpu, phys_addr_t fault_ipa,
 	spin_lock(&kvm->mmu_lock);
 	if (mmu_notifier_retry(kvm, mmu_seq))
 		goto out_unlock;
+	if (!hugetlb && !force_pte)
+		hugetlb = transparent_hugepage_adjust(&pfn, &fault_ipa);
 
 	if (hugetlb) {
 		pmd_t new_pmd = pfn_pmd(pfn, PAGE_S2);
-- 
cgit 


From 3d1e38073b3f33d31df1ae09aaccab3dfd9fb61e Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Tue, 8 Oct 2013 18:01:51 +0900
Subject: f2fs: fix to store and retrieve i_rdev correctly

When storing i_rdev, we should check its file type.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/inode.c | 49 ++++++++++++++++++++++++++++++++-----------------
 1 file changed, 32 insertions(+), 17 deletions(-)

diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index c8c058024af8..7377ca3ce5c5 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -37,6 +37,31 @@ void f2fs_set_inode_flags(struct inode *inode)
 		inode->i_flags |= S_DIRSYNC;
 }
 
+static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
+{
+	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
+			S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
+		if (ri->i_addr[0])
+			inode->i_rdev = old_decode_dev(le32_to_cpu(ri->i_addr[0]));
+		else
+			inode->i_rdev = new_decode_dev(le32_to_cpu(ri->i_addr[1]));
+	}
+}
+
+static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
+{
+	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
+		if (old_valid_dev(inode->i_rdev)) {
+			ri->i_addr[0] = cpu_to_le32(old_encode_dev(inode->i_rdev));
+			ri->i_addr[1] = 0;
+		} else {
+			ri->i_addr[0] = 0;
+			ri->i_addr[1] = cpu_to_le32(new_encode_dev(inode->i_rdev));
+			ri->i_addr[2] = 0;
+		}
+	}
+}
+
 static int do_read_inode(struct inode *inode)
 {
 	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
@@ -73,10 +98,6 @@ static int do_read_inode(struct inode *inode)
 	inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec);
 	inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec);
 	inode->i_generation = le32_to_cpu(ri->i_generation);
-	if (ri->i_addr[0])
-		inode->i_rdev = old_decode_dev(le32_to_cpu(ri->i_addr[0]));
-	else
-		inode->i_rdev = new_decode_dev(le32_to_cpu(ri->i_addr[1]));
 
 	fi->i_current_depth = le32_to_cpu(ri->i_current_depth);
 	fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid);
@@ -84,8 +105,13 @@ static int do_read_inode(struct inode *inode)
 	fi->flags = 0;
 	fi->i_advise = ri->i_advise;
 	fi->i_pino = le32_to_cpu(ri->i_pino);
+
 	get_extent_info(&fi->ext, ri->i_ext);
 	get_inline_info(fi, ri);
+
+	/* get rdev by using inline_info */
+	__get_inode_rdev(inode, ri);
+
 	f2fs_put_page(node_page, 1);
 	return 0;
 }
@@ -179,21 +205,10 @@ void update_inode(struct inode *inode, struct page *node_page)
 	ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino);
 	ri->i_generation = cpu_to_le32(inode->i_generation);
 
-	if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
-		if (old_valid_dev(inode->i_rdev)) {
-			ri->i_addr[0] =
-				cpu_to_le32(old_encode_dev(inode->i_rdev));
-			ri->i_addr[1] = 0;
-		} else {
-			ri->i_addr[0] = 0;
-			ri->i_addr[1] =
-				cpu_to_le32(new_encode_dev(inode->i_rdev));
-			ri->i_addr[2] = 0;
-		}
-	}
-
+	__set_inode_rdev(inode, ri);
 	set_cold_node(inode, node_page);
 	set_page_dirty(node_page);
+
 	clear_inode_flag(F2FS_I(inode), FI_DIRTY_INODE);
 }
 
-- 
cgit 


From b1838f8952123842b00d6f8979e0f19a3b680e87 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Thu, 10 Oct 2013 14:36:00 +0900
Subject: f2fs: fix the starvation problem on cp_rwsem

This patch removes the logic previously introduced to address the starvation
on cp_rwsem.

One potential there-in bug is that we should cover the wait.list with spin_lock,
but the previous code broke this rule.

And, actually current rwsem handles this starvation issue reasonably, so that we
didn't need to do this before neither.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/f2fs.h  | 13 -------------
 fs/f2fs/super.c |  1 -
 2 files changed, 14 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index a955a59dfdbe..308967b71674 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -18,8 +18,6 @@
 #include <linux/crc32.h>
 #include <linux/magic.h>
 #include <linux/kobject.h>
-#include <linux/wait.h>
-#include <linux/sched.h>
 
 /*
  * For mount options
@@ -360,7 +358,6 @@ struct f2fs_sb_info {
 	struct inode *meta_inode;		/* cache meta blocks */
 	struct mutex cp_mutex;			/* checkpoint procedure lock */
 	struct rw_semaphore cp_rwsem;		/* blocking FS operations */
-	wait_queue_head_t cp_wait;		/* checkpoint wait queue */
 	struct mutex node_write;		/* locking node writes */
 	struct mutex writepages;		/* mutex for writepages() */
 	int por_doing;				/* recovery is doing or not */
@@ -516,13 +513,6 @@ static inline void clear_ckpt_flags(struct f2fs_checkpoint *cp, unsigned int f)
 
 static inline void f2fs_lock_op(struct f2fs_sb_info *sbi)
 {
-	/*
-	 * If the checkpoint thread is waiting for cp_rwsem, add cuurent task
-	 * into wait list to avoid the checkpoint thread starvation
-	 */
-	while (!list_empty(&sbi->cp_rwsem.wait_list))
-		wait_event_interruptible(sbi->cp_wait,
-				list_empty(&sbi->cp_rwsem.wait_list));
 	down_read(&sbi->cp_rwsem);
 }
 
@@ -539,9 +529,6 @@ static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
 static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
 {
 	up_write(&sbi->cp_rwsem);
-
-	/* wake up all tasks blocked by checkpoint */
-	wake_up_all(&sbi->cp_wait);
 }
 
 /*
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 539c009d4138..3b786c85b5cd 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -841,7 +841,6 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
 	spin_lock_init(&sbi->stat_lock);
 	init_rwsem(&sbi->bio_sem);
 	init_rwsem(&sbi->cp_rwsem);
-	init_waitqueue_head(&sbi->cp_wait);
 	init_sb_info(sbi);
 
 	/* get an inode for meta space */
-- 
cgit 


From 9076a75f8e0f23ab64e2f34eb6be144e81f00a3e Mon Sep 17 00:00:00 2001
From: Gu Zheng <guz.fnst@cn.fujitsu.com>
Date: Mon, 14 Oct 2013 18:47:11 +0800
Subject: f2fs: introduce function read_raw_super_block()

Introduce function read_raw_super_block() to hide reading raw super block and
the retry routine if the first sb is invalid.

Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/super.c | 55 ++++++++++++++++++++++++++++++++++---------------------
 1 file changed, 34 insertions(+), 21 deletions(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 3b786c85b5cd..692f35fbae1a 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -746,30 +746,47 @@ static void init_sb_info(struct f2fs_sb_info *sbi)
 		atomic_set(&sbi->nr_pages[i], 0);
 }
 
-static int validate_superblock(struct super_block *sb,
-		struct f2fs_super_block **raw_super,
-		struct buffer_head **raw_super_buf, sector_t block)
+/*
+ * Read f2fs raw super block.
+ * Because we have two copies of super block, so read the first one at first,
+ * if the first one is invalid, move to read the second one.
+ */
+static int read_raw_super_block(struct super_block *sb,
+			struct f2fs_super_block **raw_super,
+			struct buffer_head **raw_super_buf)
 {
-	const char *super = (block == 0 ? "first" : "second");
+	int block = 0;
 
-	/* read f2fs raw super block */
+retry:
 	*raw_super_buf = sb_bread(sb, block);
 	if (!*raw_super_buf) {
-		f2fs_msg(sb, KERN_ERR, "unable to read %s superblock",
-				super);
-		return -EIO;
+		f2fs_msg(sb, KERN_ERR, "Unable to read %dth superblock",
+				block + 1);
+		if (block == 0) {
+			block++;
+			goto retry;
+		} else {
+			return -EIO;
+		}
 	}
 
 	*raw_super = (struct f2fs_super_block *)
 		((char *)(*raw_super_buf)->b_data + F2FS_SUPER_OFFSET);
 
 	/* sanity checking of raw super */
-	if (!sanity_check_raw_super(sb, *raw_super))
-		return 0;
+	if (sanity_check_raw_super(sb, *raw_super)) {
+		brelse(*raw_super_buf);
+		f2fs_msg(sb, KERN_ERR, "Can't find a valid F2FS filesystem "
+				"in %dth superblock", block + 1);
+		if(block == 0) {
+			block++;
+			goto retry;
+		} else {
+			return -EINVAL;
+		}
+	}
 
-	f2fs_msg(sb, KERN_ERR, "Can't find a valid F2FS filesystem "
-				"in %s superblock", super);
-	return -EINVAL;
+	return 0;
 }
 
 static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
@@ -791,14 +808,10 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
 		goto free_sbi;
 	}
 
-	err = validate_superblock(sb, &raw_super, &raw_super_buf, 0);
-	if (err) {
-		brelse(raw_super_buf);
-		/* check secondary superblock when primary failed */
-		err = validate_superblock(sb, &raw_super, &raw_super_buf, 1);
-		if (err)
-			goto free_sb_buf;
-	}
+	err = read_raw_super_block(sb, &raw_super, &raw_super_buf);
+	if (err)
+		goto free_sbi;
+
 	sb->s_fs_info = sbi;
 	/* init some FS parameters */
 	sbi->active_logs = NR_CURSEG_TYPE;
-- 
cgit 


From e234088758fca3a669ebb1a02d8bf7bf60f0e4ff Mon Sep 17 00:00:00 2001
From: Gu Zheng <guz.fnst@cn.fujitsu.com>
Date: Mon, 14 Oct 2013 18:45:56 +0800
Subject: f2fs: avoid wait if IO end up when do_checkpoint for better
 performance

Previously, do_checkpoint() will call congestion_wait() for waiting the pages
(previous submitted node/meta/data pages) to be written back.
Because congestion_wait() will set a regular period (e.g. HZ / 50 ) for waiting, and
no additional wake up mechanism was introduced if IO ends up before regular period costed.
Yuan Zhong found there is a situation that after the pages have been written back,
but the checkpoint thread still wait for congestion_wait to exit.

So here we store checkpoint task into f2fs_sb when doing checkpoint, it'll wait for IO completes
if there's IO going on, and in the end IO path, wake up checkpoint task when IO ends up.

Thanks to Yuan Zhong's pre work about this problem.

Reported-by: Yuan Zhong <yuan.mark.zhong@samsung.com>
Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/checkpoint.c | 11 +++++++++--
 fs/f2fs/f2fs.h       |  1 +
 fs/f2fs/segment.c    |  4 ++++
 3 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index d80882763ffd..2a5999d865b2 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -757,8 +757,15 @@ static void do_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
 	f2fs_put_page(cp_page, 1);
 
 	/* wait for previous submitted node/meta pages writeback */
-	while (get_pages(sbi, F2FS_WRITEBACK))
-		congestion_wait(BLK_RW_ASYNC, HZ / 50);
+	sbi->cp_task = current;
+	while (get_pages(sbi, F2FS_WRITEBACK)) {
+		set_current_state(TASK_UNINTERRUPTIBLE);
+		if (!get_pages(sbi, F2FS_WRITEBACK))
+			break;
+		io_schedule();
+	}
+	__set_current_state(TASK_RUNNING);
+	sbi->cp_task = NULL;
 
 	filemap_fdatawait_range(sbi->node_inode->i_mapping, 0, LONG_MAX);
 	filemap_fdatawait_range(sbi->meta_inode->i_mapping, 0, LONG_MAX);
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 308967b71674..171c52fc95bb 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -362,6 +362,7 @@ struct f2fs_sb_info {
 	struct mutex writepages;		/* mutex for writepages() */
 	int por_doing;				/* recovery is doing or not */
 	int on_build_free_nids;			/* build_free_nids is doing */
+	struct task_struct *cp_task;		/* checkpoint task */
 
 	/* for orphan inode management */
 	struct list_head orphan_inode_list;	/* orphan inode list */
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index bd79bbeceb1d..3b203597c744 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -597,6 +597,10 @@ static void f2fs_end_io_write(struct bio *bio, int err)
 
 	if (p->is_sync)
 		complete(p->wait);
+
+	if (!get_pages(p->sbi, F2FS_WRITEBACK) && p->sbi->cp_task)
+		wake_up_process(p->sbi->cp_task);
+
 	kfree(p);
 	bio_put(bio);
 }
-- 
cgit 


From 87a9bd265678ec3cc8431b14bcb14c68d0f94032 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Wed, 16 Oct 2013 15:09:26 +0900
Subject: f2fs: avoid to write during the recovery

This patch enhances the recovery routine not to write any data/node/meta until
its completion.
If any writes are sent to the disk, it could contaminate the written history
that will be used for further recovery.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/checkpoint.c |  2 +-
 fs/f2fs/node.c       | 17 +++++++++++------
 2 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 2a5999d865b2..8d16071a3b23 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -81,7 +81,7 @@ static int f2fs_write_meta_page(struct page *page,
 	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
 
 	/* Should not write any meta pages, if any IO error was occurred */
-	if (wbc->for_reclaim ||
+	if (wbc->for_reclaim || sbi->por_doing ||
 			is_set_ckpt_flags(F2FS_CKPT(sbi), CP_ERROR_FLAG)) {
 		dec_page_count(sbi, F2FS_DIRTY_META);
 		wbc->pages_skipped++;
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 51ef27894433..ef80f791b02b 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1156,6 +1156,9 @@ static int f2fs_write_node_page(struct page *page,
 	block_t new_addr;
 	struct node_info ni;
 
+	if (sbi->por_doing)
+		goto redirty_out;
+
 	wait_on_page_writeback(page);
 
 	/* get old block addr of this node page */
@@ -1171,12 +1174,8 @@ static int f2fs_write_node_page(struct page *page,
 		return 0;
 	}
 
-	if (wbc->for_reclaim) {
-		dec_page_count(sbi, F2FS_DIRTY_NODES);
-		wbc->pages_skipped++;
-		set_page_dirty(page);
-		return AOP_WRITEPAGE_ACTIVATE;
-	}
+	if (wbc->for_reclaim)
+		goto redirty_out;
 
 	mutex_lock(&sbi->node_write);
 	set_page_writeback(page);
@@ -1186,6 +1185,12 @@ static int f2fs_write_node_page(struct page *page,
 	mutex_unlock(&sbi->node_write);
 	unlock_page(page);
 	return 0;
+
+redirty_out:
+	dec_page_count(sbi, F2FS_DIRTY_NODES);
+	wbc->pages_skipped++;
+	set_page_dirty(page);
+	return AOP_WRITEPAGE_ACTIVATE;
 }
 
 /*
-- 
cgit 


From efbed4dc5857f845d787e406ce85097d1ccc5c4f Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Thu, 17 Oct 2013 21:11:01 -0400
Subject: ext4: add ratelimiting to ext4 messages

In the case of a storage device that suddenly disappears, or in the
case of significant file system corruption, this can result in a huge
flood of messages being sent to the console.  This can overflow the
file system containing /var/log/messages, or if a serial console is
configured, this can slow down the system so much that a hardware
watchdog can end up triggering forcing a system reboot.

Google-Bug-Id: 7258357

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 fs/ext4/ext4.h  |   6 +++
 fs/ext4/super.c | 152 +++++++++++++++++++++++++++++++++++---------------------
 2 files changed, 100 insertions(+), 58 deletions(-)

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index af815ea9d7cc..65485ab7a889 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -29,6 +29,7 @@
 #include <linux/wait.h>
 #include <linux/blockgroup_lock.h>
 #include <linux/percpu_counter.h>
+#include <linux/ratelimit.h>
 #include <crypto/hash.h>
 #ifdef __KERNEL__
 #include <linux/compat.h>
@@ -1314,6 +1315,11 @@ struct ext4_sb_info {
 	unsigned long s_es_last_sorted;
 	struct percpu_counter s_extent_cache_cnt;
 	spinlock_t s_es_lru_lock ____cacheline_aligned_in_smp;
+
+	/* Ratelimit ext4 messages. */
+	struct ratelimit_state s_err_ratelimit_state;
+	struct ratelimit_state s_warning_ratelimit_state;
+	struct ratelimit_state s_msg_ratelimit_state;
 };
 
 static inline struct ext4_sb_info *EXT4_SB(struct super_block *sb)
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 2c2e6cbc6bed..d3a857bfae47 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -411,20 +411,26 @@ static void ext4_handle_error(struct super_block *sb)
 			sb->s_id);
 }
 
+#define ext4_error_ratelimit(sb)					\
+		___ratelimit(&(EXT4_SB(sb)->s_err_ratelimit_state),	\
+			     "EXT4-fs error")
+
 void __ext4_error(struct super_block *sb, const char *function,
 		  unsigned int line, const char *fmt, ...)
 {
 	struct va_format vaf;
 	va_list args;
 
-	va_start(args, fmt);
-	vaf.fmt = fmt;
-	vaf.va = &args;
-	printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: comm %s: %pV\n",
-	       sb->s_id, function, line, current->comm, &vaf);
-	va_end(args);
+	if (ext4_error_ratelimit(sb)) {
+		va_start(args, fmt);
+		vaf.fmt = fmt;
+		vaf.va = &args;
+		printk(KERN_CRIT
+		       "EXT4-fs error (device %s): %s:%d: comm %s: %pV\n",
+		       sb->s_id, function, line, current->comm, &vaf);
+		va_end(args);
+	}
 	save_error_info(sb, function, line);
-
 	ext4_handle_error(sb);
 }
 
@@ -438,22 +444,23 @@ void __ext4_error_inode(struct inode *inode, const char *function,
 
 	es->s_last_error_ino = cpu_to_le32(inode->i_ino);
 	es->s_last_error_block = cpu_to_le64(block);
+	if (ext4_error_ratelimit(inode->i_sb)) {
+		va_start(args, fmt);
+		vaf.fmt = fmt;
+		vaf.va = &args;
+		if (block)
+			printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: "
+			       "inode #%lu: block %llu: comm %s: %pV\n",
+			       inode->i_sb->s_id, function, line, inode->i_ino,
+			       block, current->comm, &vaf);
+		else
+			printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: "
+			       "inode #%lu: comm %s: %pV\n",
+			       inode->i_sb->s_id, function, line, inode->i_ino,
+			       current->comm, &vaf);
+		va_end(args);
+	}
 	save_error_info(inode->i_sb, function, line);
-	va_start(args, fmt);
-	vaf.fmt = fmt;
-	vaf.va = &args;
-	if (block)
-		printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: "
-		       "inode #%lu: block %llu: comm %s: %pV\n",
-		       inode->i_sb->s_id, function, line, inode->i_ino,
-		       block, current->comm, &vaf);
-	else
-		printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: "
-		       "inode #%lu: comm %s: %pV\n",
-		       inode->i_sb->s_id, function, line, inode->i_ino,
-		       current->comm, &vaf);
-	va_end(args);
-
 	ext4_handle_error(inode->i_sb);
 }
 
@@ -469,27 +476,28 @@ void __ext4_error_file(struct file *file, const char *function,
 
 	es = EXT4_SB(inode->i_sb)->s_es;
 	es->s_last_error_ino = cpu_to_le32(inode->i_ino);
+	if (ext4_error_ratelimit(inode->i_sb)) {
+		path = d_path(&(file->f_path), pathname, sizeof(pathname));
+		if (IS_ERR(path))
+			path = "(unknown)";
+		va_start(args, fmt);
+		vaf.fmt = fmt;
+		vaf.va = &args;
+		if (block)
+			printk(KERN_CRIT
+			       "EXT4-fs error (device %s): %s:%d: inode #%lu: "
+			       "block %llu: comm %s: path %s: %pV\n",
+			       inode->i_sb->s_id, function, line, inode->i_ino,
+			       block, current->comm, path, &vaf);
+		else
+			printk(KERN_CRIT
+			       "EXT4-fs error (device %s): %s:%d: inode #%lu: "
+			       "comm %s: path %s: %pV\n",
+			       inode->i_sb->s_id, function, line, inode->i_ino,
+			       current->comm, path, &vaf);
+		va_end(args);
+	}
 	save_error_info(inode->i_sb, function, line);
-	path = d_path(&(file->f_path), pathname, sizeof(pathname));
-	if (IS_ERR(path))
-		path = "(unknown)";
-	va_start(args, fmt);
-	vaf.fmt = fmt;
-	vaf.va = &args;
-	if (block)
-		printk(KERN_CRIT
-		       "EXT4-fs error (device %s): %s:%d: inode #%lu: "
-		       "block %llu: comm %s: path %s: %pV\n",
-		       inode->i_sb->s_id, function, line, inode->i_ino,
-		       block, current->comm, path, &vaf);
-	else
-		printk(KERN_CRIT
-		       "EXT4-fs error (device %s): %s:%d: inode #%lu: "
-		       "comm %s: path %s: %pV\n",
-		       inode->i_sb->s_id, function, line, inode->i_ino,
-		       current->comm, path, &vaf);
-	va_end(args);
-
 	ext4_handle_error(inode->i_sb);
 }
 
@@ -543,11 +551,13 @@ void __ext4_std_error(struct super_block *sb, const char *function,
 	    (sb->s_flags & MS_RDONLY))
 		return;
 
-	errstr = ext4_decode_error(sb, errno, nbuf);
-	printk(KERN_CRIT "EXT4-fs error (device %s) in %s:%d: %s\n",
-	       sb->s_id, function, line, errstr);
-	save_error_info(sb, function, line);
+	if (ext4_error_ratelimit(sb)) {
+		errstr = ext4_decode_error(sb, errno, nbuf);
+		printk(KERN_CRIT "EXT4-fs error (device %s) in %s:%d: %s\n",
+		       sb->s_id, function, line, errstr);
+	}
 
+	save_error_info(sb, function, line);
 	ext4_handle_error(sb);
 }
 
@@ -597,6 +607,9 @@ void __ext4_msg(struct super_block *sb,
 	struct va_format vaf;
 	va_list args;
 
+	if (!___ratelimit(&(EXT4_SB(sb)->s_msg_ratelimit_state), "EXT4-fs"))
+		return;
+
 	va_start(args, fmt);
 	vaf.fmt = fmt;
 	vaf.va = &args;
@@ -610,6 +623,10 @@ void __ext4_warning(struct super_block *sb, const char *function,
 	struct va_format vaf;
 	va_list args;
 
+	if (!___ratelimit(&(EXT4_SB(sb)->s_warning_ratelimit_state),
+			  "EXT4-fs warning"))
+		return;
+
 	va_start(args, fmt);
 	vaf.fmt = fmt;
 	vaf.va = &args;
@@ -633,18 +650,20 @@ __acquires(bitlock)
 	es->s_last_error_block = cpu_to_le64(block);
 	__save_error_info(sb, function, line);
 
-	va_start(args, fmt);
-
-	vaf.fmt = fmt;
-	vaf.va = &args;
-	printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: group %u, ",
-	       sb->s_id, function, line, grp);
-	if (ino)
-		printk(KERN_CONT "inode %lu: ", ino);
-	if (block)
-		printk(KERN_CONT "block %llu:", (unsigned long long) block);
-	printk(KERN_CONT "%pV\n", &vaf);
-	va_end(args);
+	if (ext4_error_ratelimit(sb)) {
+		va_start(args, fmt);
+		vaf.fmt = fmt;
+		vaf.va = &args;
+		printk(KERN_CRIT "EXT4-fs error (device %s): %s:%d: group %u, ",
+		       sb->s_id, function, line, grp);
+		if (ino)
+			printk(KERN_CONT "inode %lu: ", ino);
+		if (block)
+			printk(KERN_CONT "block %llu:",
+			       (unsigned long long) block);
+		printk(KERN_CONT "%pV\n", &vaf);
+		va_end(args);
+	}
 
 	if (test_opt(sb, ERRORS_CONT)) {
 		ext4_commit_super(sb, 0);
@@ -2606,6 +2625,12 @@ EXT4_RW_ATTR_SBI_UI(mb_group_prealloc, s_mb_group_prealloc);
 EXT4_DEPRECATED_ATTR(max_writeback_mb_bump, 128);
 EXT4_RW_ATTR_SBI_UI(extent_max_zeroout_kb, s_extent_max_zeroout_kb);
 EXT4_ATTR(trigger_fs_error, 0200, NULL, trigger_test_error);
+EXT4_RW_ATTR_SBI_UI(err_ratelimit_interval_ms, s_err_ratelimit_state.interval);
+EXT4_RW_ATTR_SBI_UI(err_ratelimit_burst, s_err_ratelimit_state.burst);
+EXT4_RW_ATTR_SBI_UI(warning_ratelimit_interval_ms, s_warning_ratelimit_state.interval);
+EXT4_RW_ATTR_SBI_UI(warning_ratelimit_burst, s_warning_ratelimit_state.burst);
+EXT4_RW_ATTR_SBI_UI(msg_ratelimit_interval_ms, s_msg_ratelimit_state.interval);
+EXT4_RW_ATTR_SBI_UI(msg_ratelimit_burst, s_msg_ratelimit_state.burst);
 
 static struct attribute *ext4_attrs[] = {
 	ATTR_LIST(delayed_allocation_blocks),
@@ -2623,6 +2648,12 @@ static struct attribute *ext4_attrs[] = {
 	ATTR_LIST(max_writeback_mb_bump),
 	ATTR_LIST(extent_max_zeroout_kb),
 	ATTR_LIST(trigger_fs_error),
+	ATTR_LIST(err_ratelimit_interval_ms),
+	ATTR_LIST(err_ratelimit_burst),
+	ATTR_LIST(warning_ratelimit_interval_ms),
+	ATTR_LIST(warning_ratelimit_burst),
+	ATTR_LIST(msg_ratelimit_interval_ms),
+	ATTR_LIST(msg_ratelimit_burst),
 	NULL,
 };
 
@@ -4118,6 +4149,11 @@ no_journal:
 	if (es->s_error_count)
 		mod_timer(&sbi->s_err_report, jiffies + 300*HZ); /* 5 minutes */
 
+	/* Enable message ratelimiting. Default is 10 messages per 5 secs. */
+	ratelimit_state_init(&sbi->s_err_ratelimit_state, 5 * HZ, 10);
+	ratelimit_state_init(&sbi->s_warning_ratelimit_state, 5 * HZ, 10);
+	ratelimit_state_init(&sbi->s_msg_ratelimit_state, 5 * HZ, 10);
+
 	kfree(orig_data);
 	return 0;
 
-- 
cgit 


From 559e31146007e264ca9daed1067f66e6725cea2f Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 18 Oct 2013 09:17:58 +0900
Subject: net: typhoon: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: David Dillow <dave@thedillows.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/3com/typhoon.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/3com/typhoon.c b/drivers/net/ethernet/3com/typhoon.c
index 144942f6372b..465cc7108d8a 100644
--- a/drivers/net/ethernet/3com/typhoon.c
+++ b/drivers/net/ethernet/3com/typhoon.c
@@ -2525,7 +2525,6 @@ typhoon_remove_one(struct pci_dev *pdev)
 	pci_release_regions(pdev);
 	pci_clear_mwi(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 	free_netdev(dev);
 }
 
-- 
cgit 


From 2cb63c7901fb33557ac612a3ba399a903c0d7357 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 18 Oct 2013 09:18:18 +0900
Subject: net: 8390: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/8390/ne2k-pci.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/ethernet/8390/ne2k-pci.c b/drivers/net/ethernet/8390/ne2k-pci.c
index 92201080e07a..fc14a85e4d5f 100644
--- a/drivers/net/ethernet/8390/ne2k-pci.c
+++ b/drivers/net/ethernet/8390/ne2k-pci.c
@@ -389,9 +389,7 @@ err_out_free_netdev:
 	free_netdev (dev);
 err_out_free_res:
 	release_region (ioaddr, NE_IO_EXTENT);
-	pci_set_drvdata (pdev, NULL);
 	return -ENODEV;
-
 }
 
 /*
@@ -655,7 +653,6 @@ static void ne2k_pci_remove_one(struct pci_dev *pdev)
 	release_region(dev->base_addr, NE_IO_EXTENT);
 	free_netdev(dev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 #ifdef CONFIG_PM
-- 
cgit 


From 705d1c35f45e74011de131b1efe6ae723a499824 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 18 Oct 2013 09:18:53 +0900
Subject: net: starfire: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/adaptec/starfire.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/adaptec/starfire.c b/drivers/net/ethernet/adaptec/starfire.c
index 8b04bfc20cfb..171d73c1d3c2 100644
--- a/drivers/net/ethernet/adaptec/starfire.c
+++ b/drivers/net/ethernet/adaptec/starfire.c
@@ -835,7 +835,6 @@ static int starfire_init_one(struct pci_dev *pdev,
 	return 0;
 
 err_out_cleardev:
-	pci_set_drvdata(pdev, NULL);
 	iounmap(base);
 err_out_free_res:
 	pci_release_regions (pdev);
@@ -2012,7 +2011,6 @@ static void starfire_remove_one(struct pci_dev *pdev)
 	iounmap(np->base);
 	pci_release_regions(pdev);
 
-	pci_set_drvdata(pdev, NULL);
 	free_netdev(dev);			/* Will also free np!! */
 }
 
-- 
cgit 


From 3638d30a0b2ea1ab3cfee461d6b0f2769880d85a Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 18 Oct 2013 09:19:23 +0900
Subject: net: pcnet32: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Don Fry <pcnet32@frontier.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/amd/pcnet32.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c
index bd4e6402003a..38492e0b704e 100644
--- a/drivers/net/ethernet/amd/pcnet32.c
+++ b/drivers/net/ethernet/amd/pcnet32.c
@@ -2818,7 +2818,6 @@ static void pcnet32_remove_one(struct pci_dev *pdev)
 				    lp->init_block, lp->init_dma_addr);
 		free_netdev(dev);
 		pci_disable_device(pdev);
-		pci_set_drvdata(pdev, NULL);
 	}
 }
 
-- 
cgit 


From 94ee39fe773d55a305b0a069ce7a93b64375a89a Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 18 Oct 2013 09:19:54 +0900
Subject: net: amd8111e: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/amd/amd8111e.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/amd/amd8111e.c b/drivers/net/ethernet/amd/amd8111e.c
index 1b1429d5d5c2..d042511bdc13 100644
--- a/drivers/net/ethernet/amd/amd8111e.c
+++ b/drivers/net/ethernet/amd/amd8111e.c
@@ -1711,7 +1711,6 @@ static void amd8111e_remove_one(struct pci_dev *pdev)
 		free_netdev(dev);
 		pci_release_regions(pdev);
 		pci_disable_device(pdev);
-		pci_set_drvdata(pdev, NULL);
 	}
 }
 static void amd8111e_config_ipg(struct net_device* dev)
@@ -1967,7 +1966,6 @@ err_free_reg:
 
 err_disable_pdev:
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 	return err;
 
 }
-- 
cgit 


From 01095b99f3edef0bc6c39c37f847fb2e1399a02e Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 18 Oct 2013 09:20:24 +0900
Subject: net: alx: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/atheros/alx/main.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/atheros/alx/main.c b/drivers/net/ethernet/atheros/alx/main.c
index fc95b235e210..5aa5e8146496 100644
--- a/drivers/net/ethernet/atheros/alx/main.c
+++ b/drivers/net/ethernet/atheros/alx/main.c
@@ -1367,7 +1367,6 @@ static void alx_remove(struct pci_dev *pdev)
 
 	pci_disable_pcie_error_reporting(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 
 	free_netdev(alx->dev);
 }
-- 
cgit 


From b9a7803c401718ba7d87ed232849d33eed08fb62 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 18 Oct 2013 09:21:10 +0900
Subject: net: bnx2: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bnx2.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2.c b/drivers/net/ethernet/broadcom/bnx2.c
index 61118708fe98..d9980ad00b4b 100644
--- a/drivers/net/ethernet/broadcom/bnx2.c
+++ b/drivers/net/ethernet/broadcom/bnx2.c
@@ -8413,7 +8413,6 @@ err_out_release:
 
 err_out_disable:
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 
 err_out:
 	return rc;
@@ -8546,7 +8545,6 @@ error:
 	pci_iounmap(pdev, bp->regview);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 err_free:
 	free_netdev(dev);
 	return rc;
@@ -8578,7 +8576,6 @@ bnx2_remove_one(struct pci_dev *pdev)
 
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 static int
-- 
cgit 


From 932257efaeaa83e2b09b2dc5d41e34c3e4e0bc3c Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 18 Oct 2013 09:21:26 +0900
Subject: net: bnx2x: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index e53ff1eb3a84..8fd343201576 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -12297,7 +12297,6 @@ err_out_release:
 
 err_out_disable:
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 
 err_out:
 	return rc;
@@ -12840,7 +12839,6 @@ init_one_exit:
 		pci_release_regions(pdev);
 
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 
 	return rc;
 }
@@ -12923,7 +12921,6 @@ static void __bnx2x_remove(struct pci_dev *pdev,
 		pci_release_regions(pdev);
 
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 static void bnx2x_remove_one(struct pci_dev *pdev)
-- 
cgit 


From 4fc76e6f347eed69bf7e2bcbcf9e2c0fd2964ff7 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 18 Oct 2013 09:21:54 +0900
Subject: net: tg3: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/tg3.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 498569e99a1c..819d87c281bf 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -17701,7 +17701,6 @@ err_out_free_res:
 err_out_disable_pdev:
 	if (pci_is_enabled(pdev))
 		pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 	return err;
 }
 
@@ -17733,7 +17732,6 @@ static void tg3_remove_one(struct pci_dev *pdev)
 		free_netdev(dev);
 		pci_release_regions(pdev);
 		pci_disable_device(pdev);
-		pci_set_drvdata(pdev, NULL);
 	}
 }
 
-- 
cgit 


From d8283e552d11e3f1c447b0c3125fa8b28acbd874 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 18 Oct 2013 09:22:22 +0900
Subject: net: bna: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/brocade/bna/bnad.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/brocade/bna/bnad.c b/drivers/net/ethernet/brocade/bna/bnad.c
index b78e69e0e52a..f276433d37ce 100644
--- a/drivers/net/ethernet/brocade/bna/bnad.c
+++ b/drivers/net/ethernet/brocade/bna/bnad.c
@@ -3212,7 +3212,6 @@ bnad_init(struct bnad *bnad,
 	bnad->bar0 = ioremap_nocache(bnad->mmio_start, bnad->mmio_len);
 	if (!bnad->bar0) {
 		dev_err(&pdev->dev, "ioremap for bar0 failed\n");
-		pci_set_drvdata(pdev, NULL);
 		return -ENOMEM;
 	}
 	pr_info("bar0 mapped to %p, len %llu\n", bnad->bar0,
-- 
cgit 


From 11e4c74fbc27f5c3d497b6311712a5db82c1408d Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 18 Oct 2013 09:23:00 +0900
Subject: net: cxgb4: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 85d0cda5fbfa..8b929eeecd2d 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -6075,7 +6075,6 @@ sriov:
 	pci_disable_device(pdev);
  out_release_regions:
 	pci_release_regions(pdev);
-	pci_set_drvdata(pdev, NULL);
 	return err;
 }
 
@@ -6123,7 +6122,6 @@ static void remove_one(struct pci_dev *pdev)
 		pci_disable_pcie_error_reporting(pdev);
 		pci_disable_device(pdev);
 		pci_release_regions(pdev);
-		pci_set_drvdata(pdev, NULL);
 	} else
 		pci_release_regions(pdev);
 }
-- 
cgit 


From 2cac54630e45b477e51ecb04792981026d6aeec7 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 18 Oct 2013 09:23:27 +0900
Subject: net: cxgb3: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
index b650951791dd..45d77334d7d9 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
@@ -3374,7 +3374,6 @@ out_release_regions:
 	pci_release_regions(pdev);
 out_disable_device:
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 out:
 	return err;
 }
@@ -3415,7 +3414,6 @@ static void remove_one(struct pci_dev *pdev)
 		kfree(adapter);
 		pci_release_regions(pdev);
 		pci_disable_device(pdev);
-		pci_set_drvdata(pdev, NULL);
 	}
 }
 
-- 
cgit 


From fd4a260cdca91ad548702e2af46a7ae5a48ad1e5 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 18 Oct 2013 09:24:07 +0900
Subject: net: cxgb2: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/chelsio/cxgb/cxgb2.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb/cxgb2.c b/drivers/net/ethernet/chelsio/cxgb/cxgb2.c
index d7048db9863d..1d021059f097 100644
--- a/drivers/net/ethernet/chelsio/cxgb/cxgb2.c
+++ b/drivers/net/ethernet/chelsio/cxgb/cxgb2.c
@@ -1168,7 +1168,6 @@ out_free_dev:
 	pci_release_regions(pdev);
 out_disable_pdev:
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 	return err;
 }
 
@@ -1347,7 +1346,6 @@ static void remove_one(struct pci_dev *pdev)
 
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 	t1_sw_reset(pdev);
 }
 
-- 
cgit 


From cefa63b598554f132785bd08a588e11626fc6292 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 18 Oct 2013 09:24:54 +0900
Subject: net: cxgb4vf: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
index 40c22e7de15c..43bb0123d456 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
@@ -2782,11 +2782,9 @@ err_unmap_bar:
 
 err_free_adapter:
 	kfree(adapter);
-	pci_set_drvdata(pdev, NULL);
 
 err_release_regions:
 	pci_release_regions(pdev);
-	pci_set_drvdata(pdev, NULL);
 	pci_clear_master(pdev);
 
 err_disable_device:
@@ -2851,7 +2849,6 @@ static void cxgb4vf_pci_remove(struct pci_dev *pdev)
 		}
 		iounmap(adapter->regs);
 		kfree(adapter);
-		pci_set_drvdata(pdev, NULL);
 	}
 
 	/*
-- 
cgit 


From 6d2d83e6316611ca8aa6daa9919c41398ba2725d Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 18 Oct 2013 09:25:29 +0900
Subject: net: enic: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/cisco/enic/enic_main.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
index 7b756cf9474a..ff78dfaec508 100644
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -2309,7 +2309,6 @@ err_out_release_regions:
 err_out_disable_device:
 	pci_disable_device(pdev);
 err_out_free_netdev:
-	pci_set_drvdata(pdev, NULL);
 	free_netdev(netdev);
 
 	return err;
@@ -2338,7 +2337,6 @@ static void enic_remove(struct pci_dev *pdev)
 		enic_iounmap(enic);
 		pci_release_regions(pdev);
 		pci_disable_device(pdev);
-		pci_set_drvdata(pdev, NULL);
 		free_netdev(netdev);
 	}
 }
-- 
cgit 


From 400dfd3ae899849b27d398ca7894e1b44430887f Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 17 Oct 2013 16:27:07 -0700
Subject: net: refactor sk_page_frag_refill()

While working on virtio_net new allocation strategy to increase
payload/truesize ratio, we found that refactoring sk_page_frag_refill()
was needed.

This patch splits sk_page_frag_refill() into two parts, adding
skb_page_frag_refill() which can be used without a socket.

While we are at it, add a minimum frag size of 32 for
sk_page_frag_refill()

Michael will either use netdev_alloc_frag() from softirq context,
or skb_page_frag_refill() from process context in refill_work()
 (GFP_KERNEL allocations)

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Michael Dalton <mwdalton@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/skbuff.h |  2 ++
 net/core/sock.c        | 27 +++++++++++++++++++++++----
 2 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 1cd32f96055e..ba74474836c0 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2062,6 +2062,8 @@ static inline void skb_frag_set_page(struct sk_buff *skb, int f,
 	__skb_frag_set_page(&skb_shinfo(skb)->frags[f], page);
 }
 
+bool skb_page_frag_refill(unsigned int sz, struct page_frag *pfrag, gfp_t prio);
+
 /**
  * skb_frag_dma_map - maps a paged fragment via the DMA API
  * @dev: the device to map the fragment to
diff --git a/net/core/sock.c b/net/core/sock.c
index fd6afa267475..440afdca1e8f 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1847,7 +1847,17 @@ EXPORT_SYMBOL(sock_alloc_send_skb);
 /* On 32bit arches, an skb frag is limited to 2^15 */
 #define SKB_FRAG_PAGE_ORDER	get_order(32768)
 
-bool sk_page_frag_refill(struct sock *sk, struct page_frag *pfrag)
+/**
+ * skb_page_frag_refill - check that a page_frag contains enough room
+ * @sz: minimum size of the fragment we want to get
+ * @pfrag: pointer to page_frag
+ * @prio: priority for memory allocation
+ *
+ * Note: While this allocator tries to use high order pages, there is
+ * no guarantee that allocations succeed. Therefore, @sz MUST be
+ * less or equal than PAGE_SIZE.
+ */
+bool skb_page_frag_refill(unsigned int sz, struct page_frag *pfrag, gfp_t prio)
 {
 	int order;
 
@@ -1856,16 +1866,16 @@ bool sk_page_frag_refill(struct sock *sk, struct page_frag *pfrag)
 			pfrag->offset = 0;
 			return true;
 		}
-		if (pfrag->offset < pfrag->size)
+		if (pfrag->offset + sz <= pfrag->size)
 			return true;
 		put_page(pfrag->page);
 	}
 
 	/* We restrict high order allocations to users that can afford to wait */
-	order = (sk->sk_allocation & __GFP_WAIT) ? SKB_FRAG_PAGE_ORDER : 0;
+	order = (prio & __GFP_WAIT) ? SKB_FRAG_PAGE_ORDER : 0;
 
 	do {
-		gfp_t gfp = sk->sk_allocation;
+		gfp_t gfp = prio;
 
 		if (order)
 			gfp |= __GFP_COMP | __GFP_NOWARN;
@@ -1877,6 +1887,15 @@ bool sk_page_frag_refill(struct sock *sk, struct page_frag *pfrag)
 		}
 	} while (--order >= 0);
 
+	return false;
+}
+EXPORT_SYMBOL(skb_page_frag_refill);
+
+bool sk_page_frag_refill(struct sock *sk, struct page_frag *pfrag)
+{
+	if (likely(skb_page_frag_refill(32U, pfrag, sk->sk_allocation)))
+		return true;
+
 	sk_enter_memory_pressure(sk);
 	sk_stream_moderate_sndbuf(sk);
 	return false;
-- 
cgit 


From 7cc7c5e54b7128195a1403747a63971c3c3f8e25 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Mon, 14 Oct 2013 21:49:21 +0100
Subject: net: Delete trailing semi-colon from definition of netdev_WARN()

Macro definitions should not normally end with a semi-colon, as this
makes it dangerous to use them an if...else statement.  Happily this
has not happened yet.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdevice.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 2e53b44454ad..27f62f746621 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -3049,7 +3049,7 @@ do {								\
  * file/line information and a backtrace.
  */
 #define netdev_WARN(dev, format, args...)			\
-	WARN(1, "netdevice: %s\n" format, netdev_name(dev), ##args);
+	WARN(1, "netdevice: %s\n" format, netdev_name(dev), ##args)
 
 /* netif printk helpers, similar to netdev_printk */
 
-- 
cgit 


From f1b4863a871d1ca2984bdaa8c88598690530a65c Mon Sep 17 00:00:00 2001
From: "Geyslan G. Bem" <geyslan@gmail.com>
Date: Thu, 17 Oct 2013 19:57:12 -0300
Subject: ALSA: emu10k1: code refactoring

Partially restructures _snd_emu10k1_audigy_init_efx() and
_snd_emu10k1_init_efx() functions.

Be noted that the cast is demanded to use '__user'. So, in these cases,
avoid patches based on the coccinelle 'drop_kmalloc_cast' semantic patch.

Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/emu10k1/emufx.c | 76 ++++++++++++++++++++++++++++-------------------
 1 file changed, 45 insertions(+), 31 deletions(-)

diff --git a/sound/pci/emu10k1/emufx.c b/sound/pci/emu10k1/emufx.c
index 0275209ca82e..1f9c7c4bbcd8 100644
--- a/sound/pci/emu10k1/emufx.c
+++ b/sound/pci/emu10k1/emufx.c
@@ -1182,15 +1182,20 @@ static int _snd_emu10k1_audigy_init_efx(struct snd_emu10k1 *emu)
 	u32 *gpr_map;
 	mm_segment_t seg;
 
-	if ((icode = kzalloc(sizeof(*icode), GFP_KERNEL)) == NULL ||
-	    (icode->gpr_map = (u_int32_t __user *)
-	     kcalloc(512 + 256 + 256 + 2 * 1024, sizeof(u_int32_t),
-		     GFP_KERNEL)) == NULL ||
-	    (controls = kcalloc(SND_EMU10K1_GPR_CONTROLS,
-				sizeof(*controls), GFP_KERNEL)) == NULL) {
-		err = -ENOMEM;
-		goto __err;
-	}
+	err = -ENOMEM;
+	icode = kzalloc(sizeof(*icode), GFP_KERNEL);
+	if (!icode)
+		return err;
+
+	icode->gpr_map = (u_int32_t __user *) kcalloc(512 + 256 + 256 + 2 * 1024,
+						      sizeof(u_int32_t), GFP_KERNEL);
+	if (!icode->gpr_map)
+		goto __err_gpr;
+	controls = kcalloc(SND_EMU10K1_GPR_CONTROLS,
+			   sizeof(*controls), GFP_KERNEL);
+	if (!controls)
+		goto __err_ctrls;
+
 	gpr_map = (u32 __force *)icode->gpr_map;
 
 	icode->tram_data_map = icode->gpr_map + 512;
@@ -1741,12 +1746,12 @@ A_OP(icode, &ptr, iMAC0, A_GPR(var), A_GPR(var), A_GPR(vol), A_EXTIN(input))
 	emu->support_tlv = 0; /* clear again */
 	snd_leave_user(seg);
 
- __err:
+__err:
 	kfree(controls);
-	if (icode != NULL) {
-		kfree((void __force *)icode->gpr_map);
-		kfree(icode);
-	}
+__err_ctrls:
+	kfree((void __force *)icode->gpr_map);
+__err_gpr:
+	kfree(icode);
 	return err;
 }
 
@@ -1813,18 +1818,26 @@ static int _snd_emu10k1_init_efx(struct snd_emu10k1 *emu)
 	u32 *gpr_map;
 	mm_segment_t seg;
 
-	if ((icode = kzalloc(sizeof(*icode), GFP_KERNEL)) == NULL)
-		return -ENOMEM;
-	if ((icode->gpr_map = (u_int32_t __user *)
-	     kcalloc(256 + 160 + 160 + 2 * 512, sizeof(u_int32_t),
-		     GFP_KERNEL)) == NULL ||
-            (controls = kcalloc(SND_EMU10K1_GPR_CONTROLS,
-				sizeof(struct snd_emu10k1_fx8010_control_gpr),
-				GFP_KERNEL)) == NULL ||
-	    (ipcm = kzalloc(sizeof(*ipcm), GFP_KERNEL)) == NULL) {
-		err = -ENOMEM;
-		goto __err;
-	}
+	err = -ENOMEM;
+	icode = kzalloc(sizeof(*icode), GFP_KERNEL);
+	if (!icode)
+		return err;
+
+	icode->gpr_map = (u_int32_t __user *) kcalloc(256 + 160 + 160 + 2 * 512,
+						      sizeof(u_int32_t), GFP_KERNEL);
+	if (!icode->gpr_map)
+		goto __err_gpr;
+
+	controls = kcalloc(SND_EMU10K1_GPR_CONTROLS,
+			   sizeof(struct snd_emu10k1_fx8010_control_gpr),
+			   GFP_KERNEL);
+	if (!controls)
+		goto __err_ctrls;
+
+	ipcm = kzalloc(sizeof(*ipcm), GFP_KERNEL);
+	if (!ipcm)
+		goto __err_ipcm;
+
 	gpr_map = (u32 __force *)icode->gpr_map;
 
 	icode->tram_data_map = icode->gpr_map + 256;
@@ -2363,13 +2376,14 @@ static int _snd_emu10k1_init_efx(struct snd_emu10k1 *emu)
 	snd_leave_user(seg);
 	if (err >= 0)
 		err = snd_emu10k1_ipcm_poke(emu, ipcm);
-      __err:
+__err:
 	kfree(ipcm);
+__err_ipcm:
 	kfree(controls);
-	if (icode != NULL) {
-		kfree((void __force *)icode->gpr_map);
-		kfree(icode);
-	}
+__err_ctrls:
+	kfree((void __force *)icode->gpr_map);
+__err_gpr:
+	kfree(icode);
 	return err;
 }
 
-- 
cgit 


From b9ee0a783a928631bff1f0ea355bb9dc5deeaaf8 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 17 Oct 2013 17:24:13 -0700
Subject: Bluetooth: Add address type to device blacklist table

The device blacklist is not taking care of the address type. Actually
store the address type in the list entries and also use them when
looking up addresses in the table.

This is actually a serious bug. When adding a LE public address to
the blacklist, then it would be blocking a device on BR/EDR. And this
is not the expected behavior.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h |  3 ++-
 net/bluetooth/hci_core.c         | 21 +++++++++++----------
 net/bluetooth/hci_event.c        |  2 +-
 3 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 07c2da4854ab..c6becda8c466 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -81,6 +81,7 @@ struct hci_conn_hash {
 struct bdaddr_list {
 	struct list_head list;
 	bdaddr_t bdaddr;
+	u8 bdaddr_type;
 };
 
 struct bt_uuid {
@@ -732,7 +733,7 @@ int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
 int hci_inquiry(void __user *arg);
 
 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev,
-					 bdaddr_t *bdaddr);
+					 bdaddr_t *bdaddr, u8 type);
 int hci_blacklist_clear(struct hci_dev *hdev);
 int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
 int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index b7c4ada1beb6..2376c3040194 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2158,13 +2158,15 @@ int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
 	return 0;
 }
 
-struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr)
+struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev,
+					 bdaddr_t *bdaddr, u8 type)
 {
 	struct bdaddr_list *b;
 
-	list_for_each_entry(b, &hdev->blacklist, list)
-		if (bacmp(bdaddr, &b->bdaddr) == 0)
+	list_for_each_entry(b, &hdev->blacklist, list) {
+		if (!bacmp(&b->bdaddr, bdaddr) && b->bdaddr_type == type)
 			return b;
+	}
 
 	return NULL;
 }
@@ -2174,9 +2176,7 @@ int hci_blacklist_clear(struct hci_dev *hdev)
 	struct list_head *p, *n;
 
 	list_for_each_safe(p, n, &hdev->blacklist) {
-		struct bdaddr_list *b;
-
-		b = list_entry(p, struct bdaddr_list, list);
+		struct bdaddr_list *b = list_entry(p, struct bdaddr_list, list);
 
 		list_del(p);
 		kfree(b);
@@ -2189,10 +2189,10 @@ int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
 {
 	struct bdaddr_list *entry;
 
-	if (bacmp(bdaddr, BDADDR_ANY) == 0)
+	if (!bacmp(bdaddr, BDADDR_ANY))
 		return -EBADF;
 
-	if (hci_blacklist_lookup(hdev, bdaddr))
+	if (hci_blacklist_lookup(hdev, bdaddr, type))
 		return -EEXIST;
 
 	entry = kzalloc(sizeof(struct bdaddr_list), GFP_KERNEL);
@@ -2200,6 +2200,7 @@ int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
 		return -ENOMEM;
 
 	bacpy(&entry->bdaddr, bdaddr);
+	entry->bdaddr_type = type;
 
 	list_add(&entry->list, &hdev->blacklist);
 
@@ -2210,10 +2211,10 @@ int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type)
 {
 	struct bdaddr_list *entry;
 
-	if (bacmp(bdaddr, BDADDR_ANY) == 0)
+	if (!bacmp(bdaddr, BDADDR_ANY))
 		return hci_blacklist_clear(hdev);
 
-	entry = hci_blacklist_lookup(hdev, bdaddr);
+	entry = hci_blacklist_lookup(hdev, bdaddr, type);
 	if (!entry)
 		return -ENOENT;
 
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 6c3b193951ad..e43de9876aa0 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1692,7 +1692,7 @@ static void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
 				      &flags);
 
 	if ((mask & HCI_LM_ACCEPT) &&
-	    !hci_blacklist_lookup(hdev, &ev->bdaddr)) {
+	    !hci_blacklist_lookup(hdev, &ev->bdaddr, BDADDR_BREDR)) {
 		/* Connection accepted */
 		struct inquiry_entry *ie;
 		struct hci_conn *conn;
-- 
cgit 


From 70afe0b8566769567d2eac6395c1cf68ed62bed3 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 17 Oct 2013 17:24:14 -0700
Subject: Bluetooth: Move blacklist debugfs entry creation into hci_core.c

The blacklist debugfs should only be created together with the other
entries after the setup procedure has been finished.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c  | 28 ++++++++++++++++++++++++++++
 net/bluetooth/hci_sysfs.c | 30 ------------------------------
 2 files changed, 28 insertions(+), 30 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 2376c3040194..de59bb17f8cd 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -57,6 +57,31 @@ static void hci_notify(struct hci_dev *hdev, int event)
 
 /* ---- HCI debugfs entries ---- */
 
+static int blacklist_show(struct seq_file *f, void *p)
+{
+	struct hci_dev *hdev = f->private;
+	struct bdaddr_list *b;
+
+	hci_dev_lock(hdev);
+	list_for_each_entry(b, &hdev->blacklist, list)
+		seq_printf(f, "%pMR\n", &b->bdaddr);
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int blacklist_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, blacklist_show, inode->i_private);
+}
+
+static const struct file_operations blacklist_fops = {
+	.open		= blacklist_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 static int inquiry_cache_show(struct seq_file *f, void *p)
 {
 	struct hci_dev *hdev = f->private;
@@ -844,6 +869,9 @@ static int __hci_init(struct hci_dev *hdev)
 	if (!test_bit(HCI_SETUP, &hdev->dev_flags))
 		return 0;
 
+	debugfs_create_file("blacklist", 0444, hdev->debugfs, hdev,
+			    &blacklist_fops);
+
 	if (lmp_bredr_capable(hdev)) {
 		debugfs_create_file("inquiry_cache", 0444, hdev->debugfs,
 				    hdev, &inquiry_cache_fops);
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index a14196034bab..863e313d1fc9 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -396,33 +396,6 @@ static struct device_type bt_host = {
 	.release = bt_host_release,
 };
 
-static int blacklist_show(struct seq_file *f, void *p)
-{
-	struct hci_dev *hdev = f->private;
-	struct bdaddr_list *b;
-
-	hci_dev_lock(hdev);
-
-	list_for_each_entry(b, &hdev->blacklist, list)
-		seq_printf(f, "%pMR\n", &b->bdaddr);
-
-	hci_dev_unlock(hdev);
-
-	return 0;
-}
-
-static int blacklist_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, blacklist_show, inode->i_private);
-}
-
-static const struct file_operations blacklist_fops = {
-	.open		= blacklist_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
 static void print_bt_uuid(struct seq_file *f, u8 *uuid)
 {
 	u32 data0, data5;
@@ -497,9 +470,6 @@ int hci_add_sysfs(struct hci_dev *hdev)
 	if (!hdev->debugfs)
 		return 0;
 
-	debugfs_create_file("blacklist", 0444, hdev->debugfs,
-			    hdev, &blacklist_fops);
-
 	debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops);
 
 	return 0;
-- 
cgit 


From 47219839b43dec0520ef1ec72122186b3aa3de97 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 17 Oct 2013 17:24:15 -0700
Subject: Bluetooth: Move uuids debugfs entry creation into hci_core.c

The uuids debugfs should only be created together with the other
entries after the setup procedure has been finished.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c  | 40 ++++++++++++++++++++++++++++++++++++++++
 net/bluetooth/hci_sysfs.c | 46 ----------------------------------------------
 2 files changed, 40 insertions(+), 46 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index de59bb17f8cd..0fb9f6d1f60f 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -29,6 +29,7 @@
 #include <linux/idr.h>
 #include <linux/rfkill.h>
 #include <linux/debugfs.h>
+#include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
@@ -82,6 +83,43 @@ static const struct file_operations blacklist_fops = {
 	.release	= single_release,
 };
 
+static int uuids_show(struct seq_file *f, void *p)
+{
+	struct hci_dev *hdev = f->private;
+	struct bt_uuid *uuid;
+
+	hci_dev_lock(hdev);
+	list_for_each_entry(uuid, &hdev->uuids, list) {
+		u32 data0, data5;
+		u16 data1, data2, data3, data4;
+
+		data5 = get_unaligned_le32(uuid);
+		data4 = get_unaligned_le16(uuid + 4);
+		data3 = get_unaligned_le16(uuid + 6);
+		data2 = get_unaligned_le16(uuid + 8);
+		data1 = get_unaligned_le16(uuid + 10);
+		data0 = get_unaligned_le32(uuid + 12);
+
+		seq_printf(f, "%.8x-%.4x-%.4x-%.4x-%.4x%.8x\n",
+			   data0, data1, data2, data3, data4, data5);
+	}
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int uuids_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, uuids_show, inode->i_private);
+}
+
+static const struct file_operations uuids_fops = {
+	.open		= uuids_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 static int inquiry_cache_show(struct seq_file *f, void *p)
 {
 	struct hci_dev *hdev = f->private;
@@ -872,6 +910,8 @@ static int __hci_init(struct hci_dev *hdev)
 	debugfs_create_file("blacklist", 0444, hdev->debugfs, hdev,
 			    &blacklist_fops);
 
+	debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops);
+
 	if (lmp_bredr_capable(hdev)) {
 		debugfs_create_file("inquiry_cache", 0444, hdev->debugfs,
 				    hdev, &inquiry_cache_fops);
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 863e313d1fc9..077037e7f912 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -2,7 +2,6 @@
 
 #include <linux/debugfs.h>
 #include <linux/module.h>
-#include <asm/unaligned.h>
 
 #include <net/bluetooth/bluetooth.h>
 #include <net/bluetooth/hci_core.h>
@@ -396,49 +395,6 @@ static struct device_type bt_host = {
 	.release = bt_host_release,
 };
 
-static void print_bt_uuid(struct seq_file *f, u8 *uuid)
-{
-	u32 data0, data5;
-	u16 data1, data2, data3, data4;
-
-	data5 = get_unaligned_le32(uuid);
-	data4 = get_unaligned_le16(uuid + 4);
-	data3 = get_unaligned_le16(uuid + 6);
-	data2 = get_unaligned_le16(uuid + 8);
-	data1 = get_unaligned_le16(uuid + 10);
-	data0 = get_unaligned_le32(uuid + 12);
-
-	seq_printf(f, "%.8x-%.4x-%.4x-%.4x-%.4x%.8x\n",
-		   data0, data1, data2, data3, data4, data5);
-}
-
-static int uuids_show(struct seq_file *f, void *p)
-{
-	struct hci_dev *hdev = f->private;
-	struct bt_uuid *uuid;
-
-	hci_dev_lock(hdev);
-
-	list_for_each_entry(uuid, &hdev->uuids, list)
-		print_bt_uuid(f, uuid->uuid);
-
-	hci_dev_unlock(hdev);
-
-	return 0;
-}
-
-static int uuids_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, uuids_show, inode->i_private);
-}
-
-static const struct file_operations uuids_fops = {
-	.open		= uuids_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
 void hci_init_sysfs(struct hci_dev *hdev)
 {
 	struct device *dev = &hdev->dev;
@@ -470,8 +426,6 @@ int hci_add_sysfs(struct hci_dev *hdev)
 	if (!hdev->debugfs)
 		return 0;
 
-	debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops);
-
 	return 0;
 }
 
-- 
cgit 


From 1120e4bfa5f9c28cb55d815ab3c6bed81dfc595c Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 17 Oct 2013 17:24:16 -0700
Subject: Bluetooth: Use IS_ERR_OR_NULL for checking bt_debugfs

Make sure to use IS_ERR_OR_NULL for checking the existing of the root
debugfs dentry bt_debugfs.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/l2cap_core.c  | 11 +++++------
 net/bluetooth/rfcomm/core.c | 14 +++++++-------
 net/bluetooth/rfcomm/sock.c | 14 +++++++-------
 net/bluetooth/sco.c         | 13 ++++++-------
 4 files changed, 25 insertions(+), 27 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 8af34d2fdbef..763b7417dab7 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -6833,12 +6833,11 @@ int __init l2cap_init(void)
 	if (err < 0)
 		return err;
 
-	if (bt_debugfs) {
-		l2cap_debugfs = debugfs_create_file("l2cap", 0444, bt_debugfs,
-						    NULL, &l2cap_debugfs_fops);
-		if (!l2cap_debugfs)
-			BT_ERR("Failed to create L2CAP debug file");
-	}
+	if (IS_ERR_OR_NULL(bt_debugfs))
+		return 0;
+
+	l2cap_debugfs = debugfs_create_file("l2cap", 0444, bt_debugfs,
+					    NULL, &l2cap_debugfs_fops);
 
 	return 0;
 }
diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index 27e936a7ddd9..94d06cbfbc18 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -2154,13 +2154,6 @@ static int __init rfcomm_init(void)
 		goto unregister;
 	}
 
-	if (bt_debugfs) {
-		rfcomm_dlc_debugfs = debugfs_create_file("rfcomm_dlc", 0444,
-				bt_debugfs, NULL, &rfcomm_dlc_debugfs_fops);
-		if (!rfcomm_dlc_debugfs)
-			BT_ERR("Failed to create RFCOMM debug file");
-	}
-
 	err = rfcomm_init_ttys();
 	if (err < 0)
 		goto stop;
@@ -2171,6 +2164,13 @@ static int __init rfcomm_init(void)
 
 	BT_INFO("RFCOMM ver %s", VERSION);
 
+	if (IS_ERR_OR_NULL(bt_debugfs))
+		return 0;
+
+	rfcomm_dlc_debugfs = debugfs_create_file("rfcomm_dlc", 0444,
+						 bt_debugfs, NULL,
+						 &rfcomm_dlc_debugfs_fops);
+
 	return 0;
 
 cleanup:
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index df17276eb32b..c4d3d423f89b 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -1051,15 +1051,15 @@ int __init rfcomm_init_sockets(void)
 		goto error;
 	}
 
-	if (bt_debugfs) {
-		rfcomm_sock_debugfs = debugfs_create_file("rfcomm", 0444,
-				bt_debugfs, NULL, &rfcomm_sock_debugfs_fops);
-		if (!rfcomm_sock_debugfs)
-			BT_ERR("Failed to create RFCOMM debug file");
-	}
-
 	BT_INFO("RFCOMM socket layer initialized");
 
+	if (IS_ERR_OR_NULL(bt_debugfs))
+		return 0;
+
+	rfcomm_sock_debugfs = debugfs_create_file("rfcomm", 0444,
+						  bt_debugfs, NULL,
+						  &rfcomm_sock_debugfs_fops);
+
 	return 0;
 
 error:
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index a92aebac56ca..12a0e51e21e1 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -1177,15 +1177,14 @@ int __init sco_init(void)
 		goto error;
 	}
 
-	if (bt_debugfs) {
-		sco_debugfs = debugfs_create_file("sco", 0444, bt_debugfs,
-						  NULL, &sco_debugfs_fops);
-		if (!sco_debugfs)
-			BT_ERR("Failed to create SCO debug file");
-	}
-
 	BT_INFO("SCO socket layer initialized");
 
+	if (IS_ERR_OR_NULL(bt_debugfs))
+		return 0;
+
+	sco_debugfs = debugfs_create_file("sco", 0444, bt_debugfs,
+					  NULL, &sco_debugfs_fops);
+
 	return 0;
 
 error:
-- 
cgit 


From 0153e2ecab657be17aaecca234b29c1154a98202 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 17 Oct 2013 17:24:17 -0700
Subject: Bluetooth: Create HCI device debugfs directory in hci_register_dev

Create the debugfs directory for each HCI device directly in
hci_register_dev function and remove it during hci_unregister_dev.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c  |  5 +++++
 net/bluetooth/hci_sysfs.c | 16 +---------------
 2 files changed, 6 insertions(+), 15 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 0fb9f6d1f60f..f7ba81885b42 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2479,6 +2479,9 @@ int hci_register_dev(struct hci_dev *hdev)
 		goto err;
 	}
 
+	if (!IS_ERR_OR_NULL(bt_debugfs))
+		hdev->debugfs = debugfs_create_dir(hdev->name, bt_debugfs);
+
 	error = hci_add_sysfs(hdev);
 	if (error < 0)
 		goto err_wqueue;
@@ -2569,6 +2572,8 @@ void hci_unregister_dev(struct hci_dev *hdev)
 
 	hci_del_sysfs(hdev);
 
+	debugfs_remove_recursive(hdev->debugfs);
+
 	destroy_workqueue(hdev->workqueue);
 	destroy_workqueue(hdev->req_workqueue);
 
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 077037e7f912..0e71318b0c82 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -409,32 +409,18 @@ void hci_init_sysfs(struct hci_dev *hdev)
 int hci_add_sysfs(struct hci_dev *hdev)
 {
 	struct device *dev = &hdev->dev;
-	int err;
 
 	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
 
 	dev_set_name(dev, "%s", hdev->name);
 
-	err = device_add(dev);
-	if (err < 0)
-		return err;
-
-	if (!bt_debugfs)
-		return 0;
-
-	hdev->debugfs = debugfs_create_dir(hdev->name, bt_debugfs);
-	if (!hdev->debugfs)
-		return 0;
-
-	return 0;
+	return device_add(dev);
 }
 
 void hci_del_sysfs(struct hci_dev *hdev)
 {
 	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
 
-	debugfs_remove_recursive(hdev->debugfs);
-
 	device_del(&hdev->dev);
 }
 
-- 
cgit 


From ffcecac6a7380af84d4c1d676a6c3c524d31eeda Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 17 Oct 2013 17:24:18 -0700
Subject: Bluetooth: Create root debugfs directory during module init

Create the root Bluetooth debugfs directory during module init
and remove it on module exit.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/af_bluetooth.c | 9 ++++++++-
 net/bluetooth/hci_sysfs.c    | 8 --------
 2 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index 1f1a1118f489..f6a1671ea2ff 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -25,6 +25,7 @@
 /* Bluetooth address family and sockets. */
 
 #include <linux/module.h>
+#include <linux/debugfs.h>
 #include <asm/ioctls.h>
 
 #include <net/bluetooth/bluetooth.h>
@@ -708,12 +709,17 @@ static struct net_proto_family bt_sock_family_ops = {
 	.create	= bt_sock_create,
 };
 
+struct dentry *bt_debugfs;
+EXPORT_SYMBOL_GPL(bt_debugfs);
+
 static int __init bt_init(void)
 {
 	int err;
 
 	BT_INFO("Core ver %s", VERSION);
 
+	bt_debugfs = debugfs_create_dir("bluetooth", NULL);
+
 	err = bt_sysfs_init();
 	if (err < 0)
 		return err;
@@ -754,7 +760,6 @@ error:
 
 static void __exit bt_exit(void)
 {
-
 	sco_exit();
 
 	l2cap_exit();
@@ -764,6 +769,8 @@ static void __exit bt_exit(void)
 	sock_unregister(PF_BLUETOOTH);
 
 	bt_sysfs_cleanup();
+
+	debugfs_remove_recursive(bt_debugfs);
 }
 
 subsys_initcall(bt_init);
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 0e71318b0c82..320a76118252 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -1,6 +1,5 @@
 /* Bluetooth HCI driver model support. */
 
-#include <linux/debugfs.h>
 #include <linux/module.h>
 
 #include <net/bluetooth/bluetooth.h>
@@ -8,9 +7,6 @@
 
 static struct class *bt_class;
 
-struct dentry *bt_debugfs;
-EXPORT_SYMBOL_GPL(bt_debugfs);
-
 static inline char *link_typetostr(int type)
 {
 	switch (type) {
@@ -426,8 +422,6 @@ void hci_del_sysfs(struct hci_dev *hdev)
 
 int __init bt_sysfs_init(void)
 {
-	bt_debugfs = debugfs_create_dir("bluetooth", NULL);
-
 	bt_class = class_create(THIS_MODULE, "bluetooth");
 
 	return PTR_ERR_OR_ZERO(bt_class);
@@ -436,6 +430,4 @@ int __init bt_sysfs_init(void)
 void bt_sysfs_cleanup(void)
 {
 	class_destroy(bt_class);
-
-	debugfs_remove_recursive(bt_debugfs);
 }
-- 
cgit 


From bdc3e0f1d2019fbf89f150ed98860b1a7a762fe9 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 17 Oct 2013 17:24:19 -0700
Subject: Bluetooth: Move device_add handling into hci_register_dev

The device_add handling can be done directly in hci_register_dev and
device_remove within hci_unregister_dev.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h |  2 --
 net/bluetooth/hci_core.c         |  6 ++++--
 net/bluetooth/hci_sysfs.c        | 18 ------------------
 3 files changed, 4 insertions(+), 22 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index c6becda8c466..9b5db01bd1a2 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -768,8 +768,6 @@ int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
 
 void hci_init_sysfs(struct hci_dev *hdev);
-int hci_add_sysfs(struct hci_dev *hdev);
-void hci_del_sysfs(struct hci_dev *hdev);
 void hci_conn_init_sysfs(struct hci_conn *conn);
 void hci_conn_add_sysfs(struct hci_conn *conn);
 void hci_conn_del_sysfs(struct hci_conn *conn);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index f7ba81885b42..940da800f5c3 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2482,7 +2482,9 @@ int hci_register_dev(struct hci_dev *hdev)
 	if (!IS_ERR_OR_NULL(bt_debugfs))
 		hdev->debugfs = debugfs_create_dir(hdev->name, bt_debugfs);
 
-	error = hci_add_sysfs(hdev);
+	dev_set_name(&hdev->dev, "%s", hdev->name);
+
+	error = device_add(&hdev->dev);
 	if (error < 0)
 		goto err_wqueue;
 
@@ -2570,7 +2572,7 @@ void hci_unregister_dev(struct hci_dev *hdev)
 		rfkill_destroy(hdev->rfkill);
 	}
 
-	hci_del_sysfs(hdev);
+	device_del(&hdev->dev);
 
 	debugfs_remove_recursive(hdev->debugfs);
 
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 320a76118252..9cbf8fefb044 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -402,24 +402,6 @@ void hci_init_sysfs(struct hci_dev *hdev)
 	device_initialize(dev);
 }
 
-int hci_add_sysfs(struct hci_dev *hdev)
-{
-	struct device *dev = &hdev->dev;
-
-	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
-
-	dev_set_name(dev, "%s", hdev->name);
-
-	return device_add(dev);
-}
-
-void hci_del_sysfs(struct hci_dev *hdev)
-{
-	BT_DBG("%p name %s bus %d", hdev, hdev->name, hdev->bus);
-
-	device_del(&hdev->dev);
-}
-
 int __init bt_sysfs_init(void)
 {
 	bt_class = class_create(THIS_MODULE, "bluetooth");
-- 
cgit 


From b25f07854791539ef1c1aff3a968cfe36cb31adf Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 17 Oct 2013 17:24:20 -0700
Subject: Bluetooth: Include address type in blacklist debugfs data

The address type is important for the blacklist entries. So include
it at well.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 940da800f5c3..a4047d626b78 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -65,7 +65,7 @@ static int blacklist_show(struct seq_file *f, void *p)
 
 	hci_dev_lock(hdev);
 	list_for_each_entry(b, &hdev->blacklist, list)
-		seq_printf(f, "%pMR\n", &b->bdaddr);
+		seq_printf(f, "%pMR (type %u)\n", &b->bdaddr, b->bdaddr_type);
 	hci_dev_unlock(hdev);
 
 	return 0;
-- 
cgit 


From 2bfa3531f654d82db01d3121ae2de7a8696a4555 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Thu, 17 Oct 2013 19:16:02 -0700
Subject: Bluetooth: Move idle_timeout and sniff_{min,max}_interval to
 hci_core.c

Move the debugfs configuration directly into hci_core.c and only expose
it when the controller actually support BR/EDR sniff power saving mode.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c  | 93 +++++++++++++++++++++++++++++++++++++++++++++++
 net/bluetooth/hci_sysfs.c | 91 ----------------------------------------------
 2 files changed, 93 insertions(+), 91 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index a4047d626b78..e8058c3c9576 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -195,6 +195,90 @@ static int auto_accept_delay_get(void *data, u64 *val)
 DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
 			auto_accept_delay_set, "%llu\n");
 
+static int idle_timeout_set(void *data, u64 val)
+{
+	struct hci_dev *hdev = data;
+
+	if (val != 0 && (val < 500 || val > 3600000))
+		return -EINVAL;
+
+	hci_dev_lock(hdev);
+	hdev->idle_timeout= val;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int idle_timeout_get(void *data, u64 *val)
+{
+	struct hci_dev *hdev = data;
+
+	hci_dev_lock(hdev);
+	*val = hdev->idle_timeout;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(idle_timeout_fops, idle_timeout_get,
+			idle_timeout_set, "%llu\n");
+
+static int sniff_min_interval_set(void *data, u64 val)
+{
+	struct hci_dev *hdev = data;
+
+	if (val == 0 || val % 2 || val > hdev->sniff_max_interval)
+		return -EINVAL;
+
+	hci_dev_lock(hdev);
+	hdev->sniff_min_interval= val;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int sniff_min_interval_get(void *data, u64 *val)
+{
+	struct hci_dev *hdev = data;
+
+	hci_dev_lock(hdev);
+	*val = hdev->sniff_min_interval;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(sniff_min_interval_fops, sniff_min_interval_get,
+			sniff_min_interval_set, "%llu\n");
+
+static int sniff_max_interval_set(void *data, u64 val)
+{
+	struct hci_dev *hdev = data;
+
+	if (val == 0 || val % 2 || val < hdev->sniff_min_interval)
+		return -EINVAL;
+
+	hci_dev_lock(hdev);
+	hdev->sniff_max_interval= val;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int sniff_max_interval_get(void *data, u64 *val)
+{
+	struct hci_dev *hdev = data;
+
+	hci_dev_lock(hdev);
+	*val = hdev->sniff_max_interval;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(sniff_max_interval_fops, sniff_max_interval_get,
+			sniff_max_interval_set, "%llu\n");
+
 static int static_address_show(struct seq_file *f, void *p)
 {
 	struct hci_dev *hdev = f->private;
@@ -923,6 +1007,15 @@ static int __hci_init(struct hci_dev *hdev)
 		debugfs_create_file("auto_accept_delay", 0644, hdev->debugfs,
 				    hdev, &auto_accept_delay_fops);
 
+	if (lmp_sniff_capable(hdev)) {
+		debugfs_create_file("idle_timeout", 0644, hdev->debugfs,
+				    hdev, &idle_timeout_fops);
+		debugfs_create_file("sniff_min_interval", 0644, hdev->debugfs,
+				    hdev, &sniff_min_interval_fops);
+		debugfs_create_file("sniff_max_interval", 0644, hdev->debugfs,
+				    hdev, &sniff_max_interval_fops);
+	}
+
 	if (lmp_le_capable(hdev))
 		debugfs_create_file("static_address", 0444, hdev->debugfs,
 				   hdev, &static_address_fops);
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 9cbf8fefb044..4fac57c5ddb7 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -255,87 +255,6 @@ static ssize_t show_hci_revision(struct device *dev,
 	return sprintf(buf, "%d\n", hdev->hci_rev);
 }
 
-static ssize_t show_idle_timeout(struct device *dev,
-				 struct device_attribute *attr, char *buf)
-{
-	struct hci_dev *hdev = to_hci_dev(dev);
-	return sprintf(buf, "%d\n", hdev->idle_timeout);
-}
-
-static ssize_t store_idle_timeout(struct device *dev,
-				  struct device_attribute *attr,
-				  const char *buf, size_t count)
-{
-	struct hci_dev *hdev = to_hci_dev(dev);
-	unsigned int val;
-	int rv;
-
-	rv = kstrtouint(buf, 0, &val);
-	if (rv < 0)
-		return rv;
-
-	if (val != 0 && (val < 500 || val > 3600000))
-		return -EINVAL;
-
-	hdev->idle_timeout = val;
-
-	return count;
-}
-
-static ssize_t show_sniff_max_interval(struct device *dev,
-				       struct device_attribute *attr, char *buf)
-{
-	struct hci_dev *hdev = to_hci_dev(dev);
-	return sprintf(buf, "%d\n", hdev->sniff_max_interval);
-}
-
-static ssize_t store_sniff_max_interval(struct device *dev,
-					struct device_attribute *attr,
-					const char *buf, size_t count)
-{
-	struct hci_dev *hdev = to_hci_dev(dev);
-	u16 val;
-	int rv;
-
-	rv = kstrtou16(buf, 0, &val);
-	if (rv < 0)
-		return rv;
-
-	if (val == 0 || val % 2 || val < hdev->sniff_min_interval)
-		return -EINVAL;
-
-	hdev->sniff_max_interval = val;
-
-	return count;
-}
-
-static ssize_t show_sniff_min_interval(struct device *dev,
-				       struct device_attribute *attr, char *buf)
-{
-	struct hci_dev *hdev = to_hci_dev(dev);
-	return sprintf(buf, "%d\n", hdev->sniff_min_interval);
-}
-
-static ssize_t store_sniff_min_interval(struct device *dev,
-					struct device_attribute *attr,
-					const char *buf, size_t count)
-{
-	struct hci_dev *hdev = to_hci_dev(dev);
-	u16 val;
-	int rv;
-
-	rv = kstrtou16(buf, 0, &val);
-	if (rv < 0)
-		return rv;
-
-	if (val == 0 || val % 2 || val > hdev->sniff_max_interval)
-		return -EINVAL;
-
-	hdev->sniff_min_interval = val;
-
-	return count;
-}
-
 static DEVICE_ATTR(bus, S_IRUGO, show_bus, NULL);
 static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
@@ -346,13 +265,6 @@ static DEVICE_ATTR(manufacturer, S_IRUGO, show_manufacturer, NULL);
 static DEVICE_ATTR(hci_version, S_IRUGO, show_hci_version, NULL);
 static DEVICE_ATTR(hci_revision, S_IRUGO, show_hci_revision, NULL);
 
-static DEVICE_ATTR(idle_timeout, S_IRUGO | S_IWUSR,
-		   show_idle_timeout, store_idle_timeout);
-static DEVICE_ATTR(sniff_max_interval, S_IRUGO | S_IWUSR,
-		   show_sniff_max_interval, store_sniff_max_interval);
-static DEVICE_ATTR(sniff_min_interval, S_IRUGO | S_IWUSR,
-		   show_sniff_min_interval, store_sniff_min_interval);
-
 static struct attribute *bt_host_attrs[] = {
 	&dev_attr_bus.attr,
 	&dev_attr_type.attr,
@@ -363,9 +275,6 @@ static struct attribute *bt_host_attrs[] = {
 	&dev_attr_manufacturer.attr,
 	&dev_attr_hci_version.attr,
 	&dev_attr_hci_revision.attr,
-	&dev_attr_idle_timeout.attr,
-	&dev_attr_sniff_max_interval.attr,
-	&dev_attr_sniff_min_interval.attr,
 	NULL
 };
 
-- 
cgit 


From 9b842a470ad2853049d8ddf97285debfc490041b Mon Sep 17 00:00:00 2001
From: Roel Kluin <roel.kluin@gmail.com>
Date: Mon, 14 Oct 2013 00:44:33 +0200
Subject: OMAPDSS: Fix de_level in videomode_to_omap_video_timings()

In videomode_to_omap_video_timings, de_level is always set to HIGH
regardless of what the vm->flags says. Fix this to set it to high or low
according to vm->flags.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
[tomi.valkeinen@ti.com: rewrote the desc]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/display.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c
index fafe7c941a60..669a81fdf58e 100644
--- a/drivers/video/omap2/dss/display.c
+++ b/drivers/video/omap2/dss/display.c
@@ -266,7 +266,7 @@ void videomode_to_omap_video_timings(const struct videomode *vm,
 		OMAPDSS_SIG_ACTIVE_LOW;
 	ovt->de_level = vm->flags & DISPLAY_FLAGS_DE_HIGH ?
 		OMAPDSS_SIG_ACTIVE_HIGH :
-		OMAPDSS_SIG_ACTIVE_HIGH;
+		OMAPDSS_SIG_ACTIVE_LOW;
 	ovt->data_pclk_edge = vm->flags & DISPLAY_FLAGS_PIXDATA_POSEDGE ?
 		OMAPDSS_DRIVE_SIG_RISING_EDGE :
 		OMAPDSS_DRIVE_SIG_FALLING_EDGE;
-- 
cgit 


From 12e3594698f6c3ab6ebacc79f2fb2ad2bb5952b5 Mon Sep 17 00:00:00 2001
From: Michal Kubecek <mkubecek@suse.cz>
Date: Thu, 17 Oct 2013 15:07:40 +0200
Subject: xfrm: prevent ipcomp scratch buffer race condition

In ipcomp_compress(), sortirq is enabled too early, allowing the
per-cpu scratch buffer to be rewritten by ipcomp_decompress()
(called on the same CPU in softirq context) between populating
the buffer and copying the compressed data to the skb.

v2: as pointed out by Steffen Klassert, if we also move the
local_bh_disable() before reading the per-cpu pointers, we can
get rid of get_cpu()/put_cpu().

v3: removed ipcomp_decompress part (as explained by Herbert Xu,
it cannot be called from process context), get rid of cpu
variable (thanks to Eric Dumazet)

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
 net/xfrm/xfrm_ipcomp.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/net/xfrm/xfrm_ipcomp.c b/net/xfrm/xfrm_ipcomp.c
index 2906d520eea7..3be02b680268 100644
--- a/net/xfrm/xfrm_ipcomp.c
+++ b/net/xfrm/xfrm_ipcomp.c
@@ -141,14 +141,14 @@ static int ipcomp_compress(struct xfrm_state *x, struct sk_buff *skb)
 	const int plen = skb->len;
 	int dlen = IPCOMP_SCRATCH_SIZE;
 	u8 *start = skb->data;
-	const int cpu = get_cpu();
-	u8 *scratch = *per_cpu_ptr(ipcomp_scratches, cpu);
-	struct crypto_comp *tfm = *per_cpu_ptr(ipcd->tfms, cpu);
+	struct crypto_comp *tfm;
+	u8 *scratch;
 	int err;
 
 	local_bh_disable();
+	scratch = *this_cpu_ptr(ipcomp_scratches);
+	tfm = *this_cpu_ptr(ipcd->tfms);
 	err = crypto_comp_compress(tfm, start, plen, scratch, &dlen);
-	local_bh_enable();
 	if (err)
 		goto out;
 
@@ -158,13 +158,13 @@ static int ipcomp_compress(struct xfrm_state *x, struct sk_buff *skb)
 	}
 
 	memcpy(start + sizeof(struct ip_comp_hdr), scratch, dlen);
-	put_cpu();
+	local_bh_enable();
 
 	pskb_trim(skb, dlen + sizeof(struct ip_comp_hdr));
 	return 0;
 
 out:
-	put_cpu();
+	local_bh_enable();
 	return err;
 }
 
-- 
cgit 


From 443b6585acf70bd9a695fe4fc9325c29c96d7fde Mon Sep 17 00:00:00 2001
From: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Date: Thu, 17 Oct 2013 15:03:16 +0200
Subject: ARM: imx27: add missing #pwm-cells property

The pwm-node is missing its #pwm-cells property. The pwm-framework will
complain about this.

Add the missing property.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx27.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/imx27.dtsi b/arch/arm/boot/dts/imx27.dtsi
index b7a1c6d950b9..826231eb4446 100644
--- a/arch/arm/boot/dts/imx27.dtsi
+++ b/arch/arm/boot/dts/imx27.dtsi
@@ -123,6 +123,7 @@
 			};
 
 			pwm: pwm@10006000 {
+				#pwm-cells = <2>;
 				compatible = "fsl,imx27-pwm";
 				reg = <0x10006000 0x1000>;
 				interrupts = <23>;
-- 
cgit 


From dc1089206d1f85fa1b3bd84ea633cbcb12a63956 Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Fri, 18 Oct 2013 10:32:52 +0800
Subject: ARM: dts: imx6sl: add a pinctrl for ECSPI1

add a pinctrl for ECSPI1. This pinctrl can be used in the imx6sl-evk board.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6sl.dtsi | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
index e4d6d1efb457..0a2d614bc206 100644
--- a/arch/arm/boot/dts/imx6sl.dtsi
+++ b/arch/arm/boot/dts/imx6sl.dtsi
@@ -541,6 +541,16 @@
 				compatible = "fsl,imx6sl-iomuxc";
 				reg = <0x020e0000 0x4000>;
 
+				ecspi1 {
+					pinctrl_ecspi1_1: ecspi1grp-1 {
+						fsl,pins = <
+							MX6SL_PAD_ECSPI1_MISO__ECSPI1_MISO 0x100b1
+							MX6SL_PAD_ECSPI1_MOSI__ECSPI1_MOSI 0x100b1
+							MX6SL_PAD_ECSPI1_SCLK__ECSPI1_SCLK 0x100b1
+						>;
+					};
+				};
+
 				fec {
 					pinctrl_fec_1: fecgrp-1 {
 						fsl,pins = <
-- 
cgit 


From d1b539758ab228bff379ff3049304b0eff15fea9 Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Fri, 18 Oct 2013 10:32:53 +0800
Subject: ARM: dts: imx6sl-evk: enable the SPI NOR

enable the spi nor for imx6sl-evk boards.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6sl-evk.dts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/boot/dts/imx6sl-evk.dts b/arch/arm/boot/dts/imx6sl-evk.dts
index c14195f6c5f9..cc68e19c5163 100644
--- a/arch/arm/boot/dts/imx6sl-evk.dts
+++ b/arch/arm/boot/dts/imx6sl-evk.dts
@@ -41,6 +41,22 @@
 	};
 };
 
+&ecspi1 {
+	fsl,spi-num-chipselects = <1>;
+	cs-gpios = <&gpio4 11 0>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_ecspi1_1>;
+	status = "okay";
+
+	flash: m25p80@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "st,m25p32";
+		spi-max-frequency = <20000000>;
+		reg = <0>;
+	};
+};
+
 &fec {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_fec_1>;
-- 
cgit 


From e4bfeda96872bfe6015cd360008b77cd3b981b2b Mon Sep 17 00:00:00 2001
From: Thierry Reding <treding@nvidia.com>
Date: Fri, 18 Oct 2013 10:46:24 +0200
Subject: pwm-backlight: Fix brightness adjustment

Split adjustment of the brightness (by changing the PWM duty cycle) from
the power on sequence. This fixes an issue where the brightness can no
longer be updated once the backlight has been enabled.

Reported-by: Marc Dietrich <marvin24@gmx.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
 drivers/video/backlight/pwm_bl.c | 30 ++++++++++++++++++------------
 1 file changed, 18 insertions(+), 12 deletions(-)

diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index 32e96e3525a1..f77a7b0ca5e6 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -45,21 +45,11 @@ struct pwm_bl_data {
 
 static void pwm_backlight_power_on(struct pwm_bl_data *pb, int brightness)
 {
-	unsigned int lth = pb->lth_brightness;
 	int duty_cycle, err;
 
 	if (pb->enabled)
 		return;
 
-	if (pb->levels)
-		duty_cycle = pb->levels[brightness];
-	else
-		duty_cycle = brightness;
-
-	duty_cycle = (duty_cycle * (pb->period - lth) / pb->scale) + lth;
-
-	pwm_config(pb->pwm, duty_cycle, pb->period);
-
 	err = regulator_enable(pb->power_supply);
 	if (err < 0)
 		dev_err(pb->dev, "failed to enable power supply\n");
@@ -94,10 +84,24 @@ static void pwm_backlight_power_off(struct pwm_bl_data *pb)
 	pb->enabled = false;
 }
 
+static int compute_duty_cycle(struct pwm_bl_data *pb, int brightness)
+{
+	unsigned int lth = pb->lth_brightness;
+	int duty_cycle;
+
+	if (pb->levels)
+		duty_cycle = pb->levels[brightness];
+	else
+		duty_cycle = brightness;
+
+	return (duty_cycle * (pb->period - lth) / pb->scale) + lth;
+}
+
 static int pwm_backlight_update_status(struct backlight_device *bl)
 {
 	struct pwm_bl_data *pb = bl_get_data(bl);
 	int brightness = bl->props.brightness;
+	int duty_cycle;
 
 	if (bl->props.power != FB_BLANK_UNBLANK ||
 	    bl->props.fb_blank != FB_BLANK_UNBLANK ||
@@ -107,9 +111,11 @@ static int pwm_backlight_update_status(struct backlight_device *bl)
 	if (pb->notify)
 		brightness = pb->notify(pb->dev, brightness);
 
-	if (brightness > 0)
+	if (brightness > 0) {
+		duty_cycle = compute_duty_cycle(pb, brightness);
+		pwm_config(pb->pwm, duty_cycle, pb->period);
 		pwm_backlight_power_on(pb, brightness);
-	else
+	} else
 		pwm_backlight_power_off(pb);
 
 	if (pb->notify_after)
-- 
cgit 


From eb622495e89879bb7d62bb27b2561a306bbe2401 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Fri, 18 Oct 2013 11:49:25 +0300
Subject: Bluetooth: Fix ATT socket backwards compatibility with user space

Old user space versions bind the Attribute Protocol socket to
BDADDR_BREDR when they should be using BDADDR_LE_PUBLIC or
BDADDR_LE_RANDOM. The kernel recently introduced stricter checks on the
socket parameters but we need to punch this hole for old user space
versions to keep them working.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/l2cap_sock.c | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 34e5a58ffca8..1f326d9d9132 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -159,8 +159,31 @@ static int l2cap_sock_connect(struct socket *sock, struct sockaddr *addr,
 	if (!bdaddr_type_is_valid(la.l2_bdaddr_type))
 		return -EINVAL;
 
-	if (chan->src_type == BDADDR_BREDR && la.l2_bdaddr_type != BDADDR_BREDR)
-		return -EINVAL;
+	/* Check that the socket wasn't bound to something that
+	 * conflicts with the address given to connect(). If chan->src
+	 * is BDADDR_ANY it means bind() was never used, in which case
+	 * chan->src_type and la.l2_bdaddr_type do not need to match.
+	 */
+	if (chan->src_type == BDADDR_BREDR && bacmp(&chan->src, BDADDR_ANY) &&
+	    bdaddr_type_is_le(la.l2_bdaddr_type)) {
+		/* Old user space versions will try to incorrectly bind
+		 * the ATT socket using BDADDR_BREDR. We need to accept
+		 * this and fix up the source address type only when
+		 * both the source CID and destination CID indicate
+		 * ATT. Anything else is an invalid combination.
+		 */
+		if (chan->scid != L2CAP_CID_ATT ||
+		    la.l2_cid != __constant_cpu_to_le16(L2CAP_CID_ATT))
+			return -EINVAL;
+
+		/* We don't have the hdev available here to make a
+		 * better decision on random vs public, but since all
+		 * user space versions that exhibit this issue anyway do
+		 * not support random local addresses assuming public
+		 * here is good enough.
+		 */
+		chan->src_type = BDADDR_LE_PUBLIC;
+	}
 
 	if (chan->src_type != BDADDR_BREDR && la.l2_bdaddr_type == BDADDR_BREDR)
 		return -EINVAL;
-- 
cgit 


From e71f41bc7f73ec7f2cb678b51ace47eb05dc6af1 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 18 Oct 2013 01:10:28 -0700
Subject: Bluetooth: Use BDADDR_BREDR type for old blacklist ioctl interface

The old blacklist ioctl interface was only able to operate on BR/EDR
addresses. So use the BDADDR_BREDR address type definition instead
of an open coded magic 0 value.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_sock.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 97f96ebdd56d..71f0be173080 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -481,7 +481,7 @@ static int hci_sock_blacklist_add(struct hci_dev *hdev, void __user *arg)
 
 	hci_dev_lock(hdev);
 
-	err = hci_blacklist_add(hdev, &bdaddr, 0);
+	err = hci_blacklist_add(hdev, &bdaddr, BDADDR_BREDR);
 
 	hci_dev_unlock(hdev);
 
@@ -498,7 +498,7 @@ static int hci_sock_blacklist_del(struct hci_dev *hdev, void __user *arg)
 
 	hci_dev_lock(hdev);
 
-	err = hci_blacklist_del(hdev, &bdaddr, 0);
+	err = hci_blacklist_del(hdev, &bdaddr, BDADDR_BREDR);
 
 	hci_dev_unlock(hdev);
 
-- 
cgit 


From ca50410b731c636b9750c02d5ae45be215056634 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Thu, 17 Oct 2013 14:56:13 +0100
Subject: ASoC: wm8962: Move interrupt initalisation to probe()

This is more idiomatic and fixes bugs in the error handling paths.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm8962.c | 68 +++++++++++++++++++++++------------------------
 1 file changed, 33 insertions(+), 35 deletions(-)

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 11d80f3b6137..54379ee1cd0c 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -3377,7 +3377,7 @@ static int wm8962_probe(struct snd_soc_codec *codec)
 	int ret;
 	struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
 	struct wm8962_pdata *pdata = &wm8962->pdata;
-	int i, trigger, irq_pol;
+	int i;
 	bool dmicclk, dmicdat;
 
 	wm8962->codec = codec;
@@ -3506,36 +3506,6 @@ static int wm8962_probe(struct snd_soc_codec *codec)
 	wm8962_init_beep(codec);
 	wm8962_init_gpio(codec);
 
-	if (wm8962->irq) {
-		if (pdata->irq_active_low) {
-			trigger = IRQF_TRIGGER_LOW;
-			irq_pol = WM8962_IRQ_POL;
-		} else {
-			trigger = IRQF_TRIGGER_HIGH;
-			irq_pol = 0;
-		}
-
-		snd_soc_update_bits(codec, WM8962_INTERRUPT_CONTROL,
-				    WM8962_IRQ_POL, irq_pol);
-
-		ret = request_threaded_irq(wm8962->irq, NULL, wm8962_irq,
-					   trigger | IRQF_ONESHOT,
-					   "wm8962", codec->dev);
-		if (ret != 0) {
-			dev_err(codec->dev, "Failed to request IRQ %d: %d\n",
-				wm8962->irq, ret);
-			wm8962->irq = 0;
-			/* Non-fatal */
-		} else {
-			/* Enable some IRQs by default */
-			snd_soc_update_bits(codec,
-					    WM8962_INTERRUPT_STATUS_2_MASK,
-					    WM8962_FLL_LOCK_EINT |
-					    WM8962_TEMP_SHUT_EINT |
-					    WM8962_FIFOS_ERR_EINT, 0);
-		}
-	}
-
 	return 0;
 }
 
@@ -3544,9 +3514,6 @@ static int wm8962_remove(struct snd_soc_codec *codec)
 	struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
 	int i;
 
-	if (wm8962->irq)
-		free_irq(wm8962->irq, codec);
-
 	cancel_delayed_work_sync(&wm8962->mic_work);
 
 	wm8962_free_gpio(codec);
@@ -3619,7 +3586,7 @@ static int wm8962_i2c_probe(struct i2c_client *i2c,
 	struct wm8962_pdata *pdata = dev_get_platdata(&i2c->dev);
 	struct wm8962_priv *wm8962;
 	unsigned int reg;
-	int ret, i;
+	int ret, i, irq_pol, trigger;
 
 	wm8962 = devm_kzalloc(&i2c->dev, sizeof(struct wm8962_priv),
 			      GFP_KERNEL);
@@ -3714,6 +3681,37 @@ static int wm8962_i2c_probe(struct i2c_client *i2c,
 				ret);
 	}
 
+	if (wm8962->irq) {
+		if (pdata->irq_active_low) {
+			trigger = IRQF_TRIGGER_LOW;
+			irq_pol = WM8962_IRQ_POL;
+		} else {
+			trigger = IRQF_TRIGGER_HIGH;
+			irq_pol = 0;
+		}
+
+		regmap_update_bits(wm8962->regmap, WM8962_INTERRUPT_CONTROL,
+				   WM8962_IRQ_POL, irq_pol);
+
+		ret = devm_request_threaded_irq(&i2c->dev, wm8962->irq, NULL,
+						wm8962_irq,
+						trigger | IRQF_ONESHOT,
+						"wm8962", &i2c->dev);
+		if (ret != 0) {
+			dev_err(&i2c->dev, "Failed to request IRQ %d: %d\n",
+				wm8962->irq, ret);
+			wm8962->irq = 0;
+			/* Non-fatal */
+		} else {
+			/* Enable some IRQs by default */
+			regmap_update_bits(wm8962->regmap,
+					   WM8962_INTERRUPT_STATUS_2_MASK,
+					   WM8962_FLL_LOCK_EINT |
+					   WM8962_TEMP_SHUT_EINT |
+					   WM8962_FIFOS_ERR_EINT, 0);
+		}
+	}
+
 	pm_runtime_enable(&i2c->dev);
 	pm_request_idle(&i2c->dev);
 
-- 
cgit 


From 78b78f5c019e5c68c88afad4b0d3070becde939e Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Thu, 17 Oct 2013 15:04:21 +0100
Subject: ASoC: wm8962: Move register initialisation to I2C probe()

This is more idiomatic and is required for robust operation since we must
ensure that the clocking configuration is valid as rapidly as possible.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm8962.c | 150 +++++++++++++++++++++++-----------------------
 1 file changed, 75 insertions(+), 75 deletions(-)

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 54379ee1cd0c..2bf9ee7c5407 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -3242,7 +3242,7 @@ static void wm8962_free_beep(struct snd_soc_codec *codec)
 }
 #endif
 
-static void wm8962_set_gpio_mode(struct snd_soc_codec *codec, int gpio)
+static void wm8962_set_gpio_mode(struct wm8962_priv *wm8962, int gpio)
 {
 	int mask = 0;
 	int val = 0;
@@ -3263,8 +3263,8 @@ static void wm8962_set_gpio_mode(struct snd_soc_codec *codec, int gpio)
 	}
 
 	if (mask)
-		snd_soc_update_bits(codec, WM8962_ANALOGUE_CLOCKING1,
-				    mask, val);
+		regmap_update_bits(wm8962->regmap, WM8962_ANALOGUE_CLOCKING1,
+				   mask, val);
 }
 
 #ifdef CONFIG_GPIOLIB
@@ -3276,7 +3276,6 @@ static inline struct wm8962_priv *gpio_to_wm8962(struct gpio_chip *chip)
 static int wm8962_gpio_request(struct gpio_chip *chip, unsigned offset)
 {
 	struct wm8962_priv *wm8962 = gpio_to_wm8962(chip);
-	struct snd_soc_codec *codec = wm8962->codec;
 
 	/* The WM8962 GPIOs aren't linearly numbered.  For simplicity
 	 * we export linear numbers and error out if the unsupported
@@ -3292,7 +3291,7 @@ static int wm8962_gpio_request(struct gpio_chip *chip, unsigned offset)
 		return -EINVAL;
 	}
 
-	wm8962_set_gpio_mode(codec, offset + 1);
+	wm8962_set_gpio_mode(wm8962, offset + 1);
 
 	return 0;
 }
@@ -3376,7 +3375,6 @@ static int wm8962_probe(struct snd_soc_codec *codec)
 {
 	int ret;
 	struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
-	struct wm8962_pdata *pdata = &wm8962->pdata;
 	int i;
 	bool dmicclk, dmicdat;
 
@@ -3409,75 +3407,6 @@ static int wm8962_probe(struct snd_soc_codec *codec)
 		}
 	}
 
-	/* SYSCLK defaults to on; make sure it is off so we can safely
-	 * write to registers if the device is declocked.
-	 */
-	snd_soc_update_bits(codec, WM8962_CLOCKING2, WM8962_SYSCLK_ENA, 0);
-
-	/* Ensure we have soft control over all registers */
-	snd_soc_update_bits(codec, WM8962_CLOCKING2,
-			    WM8962_CLKREG_OVD, WM8962_CLKREG_OVD);
-
-	/* Ensure that the oscillator and PLLs are disabled */
-	snd_soc_update_bits(codec, WM8962_PLL2,
-			    WM8962_OSC_ENA | WM8962_PLL2_ENA | WM8962_PLL3_ENA,
-			    0);
-
-	/* Apply static configuration for GPIOs */
-	for (i = 0; i < ARRAY_SIZE(pdata->gpio_init); i++)
-		if (pdata->gpio_init[i]) {
-			wm8962_set_gpio_mode(codec, i + 1);
-			snd_soc_write(codec, 0x200 + i,
-					pdata->gpio_init[i] & 0xffff);
-		}
-
-
-	/* Put the speakers into mono mode? */
-	if (pdata->spk_mono)
-		snd_soc_update_bits(codec, WM8962_CLASS_D_CONTROL_2,
-				WM8962_SPK_MONO_MASK, WM8962_SPK_MONO);
-
-	/* Micbias setup, detection enable and detection
-	 * threasholds. */
-	if (pdata->mic_cfg)
-		snd_soc_update_bits(codec, WM8962_ADDITIONAL_CONTROL_4,
-				    WM8962_MICDET_ENA |
-				    WM8962_MICDET_THR_MASK |
-				    WM8962_MICSHORT_THR_MASK |
-				    WM8962_MICBIAS_LVL,
-				    pdata->mic_cfg);
-
-	/* Latch volume update bits */
-	snd_soc_update_bits(codec, WM8962_LEFT_INPUT_VOLUME,
-			    WM8962_IN_VU, WM8962_IN_VU);
-	snd_soc_update_bits(codec, WM8962_RIGHT_INPUT_VOLUME,
-			    WM8962_IN_VU, WM8962_IN_VU);
-	snd_soc_update_bits(codec, WM8962_LEFT_ADC_VOLUME,
-			    WM8962_ADC_VU, WM8962_ADC_VU);
-	snd_soc_update_bits(codec, WM8962_RIGHT_ADC_VOLUME,
-			    WM8962_ADC_VU, WM8962_ADC_VU);
-	snd_soc_update_bits(codec, WM8962_LEFT_DAC_VOLUME,
-			    WM8962_DAC_VU, WM8962_DAC_VU);
-	snd_soc_update_bits(codec, WM8962_RIGHT_DAC_VOLUME,
-			    WM8962_DAC_VU, WM8962_DAC_VU);
-	snd_soc_update_bits(codec, WM8962_SPKOUTL_VOLUME,
-			    WM8962_SPKOUT_VU, WM8962_SPKOUT_VU);
-	snd_soc_update_bits(codec, WM8962_SPKOUTR_VOLUME,
-			    WM8962_SPKOUT_VU, WM8962_SPKOUT_VU);
-	snd_soc_update_bits(codec, WM8962_HPOUTL_VOLUME,
-			    WM8962_HPOUT_VU, WM8962_HPOUT_VU);
-	snd_soc_update_bits(codec, WM8962_HPOUTR_VOLUME,
-			    WM8962_HPOUT_VU, WM8962_HPOUT_VU);
-
-	/* Stereo control for EQ */
-	snd_soc_update_bits(codec, WM8962_EQ1, WM8962_EQ_SHARED_COEFF, 0);
-
-	/* Don't debouce interrupts so we don't need SYSCLK */
-	snd_soc_update_bits(codec, WM8962_IRQ_DEBOUNCE,
-			    WM8962_FLL_LOCK_DB | WM8962_PLL3_LOCK_DB |
-			    WM8962_PLL2_LOCK_DB | WM8962_TEMP_SHUT_DB,
-			    0);
-
 	wm8962_add_widgets(codec);
 
 	/* Save boards having to disable DMIC when not in use */
@@ -3671,6 +3600,77 @@ static int wm8962_i2c_probe(struct i2c_client *i2c,
 		goto err_enable;
 	}
 
+	/* SYSCLK defaults to on; make sure it is off so we can safely
+	 * write to registers if the device is declocked.
+	 */
+	regmap_update_bits(wm8962->regmap, WM8962_CLOCKING2,
+			   WM8962_SYSCLK_ENA, 0);
+
+	/* Ensure we have soft control over all registers */
+	regmap_update_bits(wm8962->regmap, WM8962_CLOCKING2,
+			   WM8962_CLKREG_OVD, WM8962_CLKREG_OVD);
+
+	/* Ensure that the oscillator and PLLs are disabled */
+	regmap_update_bits(wm8962->regmap, WM8962_PLL2,
+			   WM8962_OSC_ENA | WM8962_PLL2_ENA | WM8962_PLL3_ENA,
+			   0);
+
+	/* Apply static configuration for GPIOs */
+	for (i = 0; i < ARRAY_SIZE(pdata->gpio_init); i++)
+		if (pdata->gpio_init[i]) {
+			wm8962_set_gpio_mode(wm8962, i + 1);
+			regmap_write(wm8962->regmap, 0x200 + i,
+				     pdata->gpio_init[i] & 0xffff);
+		}
+
+
+	/* Put the speakers into mono mode? */
+	if (pdata->spk_mono)
+		regmap_update_bits(wm8962->regmap, WM8962_CLASS_D_CONTROL_2,
+				   WM8962_SPK_MONO_MASK, WM8962_SPK_MONO);
+
+	/* Micbias setup, detection enable and detection
+	 * threasholds. */
+	if (pdata->mic_cfg)
+		regmap_update_bits(wm8962->regmap, WM8962_ADDITIONAL_CONTROL_4,
+				   WM8962_MICDET_ENA |
+				   WM8962_MICDET_THR_MASK |
+				   WM8962_MICSHORT_THR_MASK |
+				   WM8962_MICBIAS_LVL,
+				   pdata->mic_cfg);
+
+	/* Latch volume update bits */
+	regmap_update_bits(wm8962->regmap, WM8962_LEFT_INPUT_VOLUME,
+			   WM8962_IN_VU, WM8962_IN_VU);
+	regmap_update_bits(wm8962->regmap, WM8962_RIGHT_INPUT_VOLUME,
+			   WM8962_IN_VU, WM8962_IN_VU);
+	regmap_update_bits(wm8962->regmap, WM8962_LEFT_ADC_VOLUME,
+			   WM8962_ADC_VU, WM8962_ADC_VU);
+	regmap_update_bits(wm8962->regmap, WM8962_RIGHT_ADC_VOLUME,
+			   WM8962_ADC_VU, WM8962_ADC_VU);
+	regmap_update_bits(wm8962->regmap, WM8962_LEFT_DAC_VOLUME,
+			   WM8962_DAC_VU, WM8962_DAC_VU);
+	regmap_update_bits(wm8962->regmap, WM8962_RIGHT_DAC_VOLUME,
+			   WM8962_DAC_VU, WM8962_DAC_VU);
+	regmap_update_bits(wm8962->regmap, WM8962_SPKOUTL_VOLUME,
+			   WM8962_SPKOUT_VU, WM8962_SPKOUT_VU);
+	regmap_update_bits(wm8962->regmap, WM8962_SPKOUTR_VOLUME,
+			   WM8962_SPKOUT_VU, WM8962_SPKOUT_VU);
+	regmap_update_bits(wm8962->regmap, WM8962_HPOUTL_VOLUME,
+			   WM8962_HPOUT_VU, WM8962_HPOUT_VU);
+	regmap_update_bits(wm8962->regmap, WM8962_HPOUTR_VOLUME,
+			   WM8962_HPOUT_VU, WM8962_HPOUT_VU);
+
+	/* Stereo control for EQ */
+	regmap_update_bits(wm8962->regmap, WM8962_EQ1,
+			   WM8962_EQ_SHARED_COEFF, 0);
+
+	/* Don't debouce interrupts so we don't need SYSCLK */
+	regmap_update_bits(wm8962->regmap, WM8962_IRQ_DEBOUNCE,
+			   WM8962_FLL_LOCK_DB | WM8962_PLL3_LOCK_DB |
+			   WM8962_PLL2_LOCK_DB | WM8962_TEMP_SHUT_DB,
+			   0);
+
 	if (wm8962->pdata.in4_dc_measure) {
 		ret = regmap_register_patch(wm8962->regmap,
 					    wm8962_dc_measure,
-- 
cgit 


From 84873cb77344b9af7c57586c9c144573ebcf0fd1 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 18 Oct 2013 09:45:07 +0200
Subject: ARM: ux500: fix clock for GPIO block 8

The clock assignment in the device tree for GPIO block 8 was
incorrect, indicating this was managed by bit 1 on PRCC 6
while it was in fact bit 1 on PRCC 5.

Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 2ef30c1c1997..55abf1292ddd 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -227,7 +227,7 @@
 			#gpio-cells = <2>;
 			gpio-bank = <8>;
 
-			clocks = <&prcc_pclk 6 1>;
+			clocks = <&prcc_pclk 5 1>;
 		};
 
 		pinctrl {
-- 
cgit 


From f5ff9a115ec633852312a8e43df4bbd36b4dad3d Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 18 Oct 2013 10:56:14 +0200
Subject: clk: ux500: fix erroneous bit assignment

Due to a typo or similar, the peripheral group 2 clock 11
gate was set to bit 1 instead of bit 11. We need to fix this
to be able to set the correct enable bit in the device tree:
when trying to correct the bit assignment in the device tree,
the system would hang.

Cc: Mike Turquette <mturquette@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/clk/ux500/u8500_of_clk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/ux500/u8500_of_clk.c b/drivers/clk/ux500/u8500_of_clk.c
index b768b507c95c..cdeff299de26 100644
--- a/drivers/clk/ux500/u8500_of_clk.c
+++ b/drivers/clk/ux500/u8500_of_clk.c
@@ -339,7 +339,7 @@ void u8500_of_clk_init(u32 clkrst1_base, u32 clkrst2_base, u32 clkrst3_base,
 
 	clk = clk_reg_prcc_pclk("p2_pclk11", "per2clk", clkrst2_base,
 				BIT(11), 0);
-	PRCC_PCLK_STORE(clk, 2, 1);
+	PRCC_PCLK_STORE(clk, 2, 11);
 
 	clk = clk_reg_prcc_pclk("p2_pclk12", "per2clk", clkrst2_base,
 				BIT(12), 0);
-- 
cgit 


From d591640adc7beaf816c2ffc0952d25b836cb3fcf Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 18 Oct 2013 09:49:21 +0200
Subject: ARM: ux500: fix clock for GPIO blocks 6 and 7

The clock assignment in the device tree for GPIO blocks 6
and 7 was incorrect, indicating this was managed by bit 1 on
PRCC 2 while it was in fact bit 11 on PRCC 2.

Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 55abf1292ddd..5112f4cd8bce 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -197,7 +197,7 @@
 			#gpio-cells = <2>;
 			gpio-bank = <6>;
 
-			clocks = <&prcc_pclk 2 1>;
+			clocks = <&prcc_pclk 2 11>;
 		};
 
 		gpio7: gpio@8011e080 {
@@ -212,7 +212,7 @@
 			#gpio-cells = <2>;
 			gpio-bank = <7>;
 
-			clocks = <&prcc_pclk 2 1>;
+			clocks = <&prcc_pclk 2 11>;
 		};
 
 		gpio8: gpio@a03fe000 {
-- 
cgit 


From 2d281d8196e38dd3a4ee9af26621ddde8329f269 Mon Sep 17 00:00:00 2001
From: Jacob Pan <jacob.jun.pan@linux.intel.com>
Date: Thu, 17 Oct 2013 10:28:35 -0700
Subject: PowerCap: Introduce Intel RAPL power capping driver

The Intel Running Average Power Limit (RAPL) technology provides platform
software with the ability to monitor, control, and get notifications on
power usage.

This feature is present in all Sandy Bridge and later Intel processors.
Newer models allow more fine grained controls to be applied.  In RAPL,
power control is divided into domains, which include package, DRAM
controller, CPU core (Power Plane 0), graphics uncore (power plane 1), etc.

The purpose of this driver is to expose the RAPL settings to userspace.
Overall, RAPL fits in the new powercap class driver in that platform
level power capping controls are exposed via this generic interface.

This driver is based on an earlier patch from Zhang Rui.

However, while the previous work was mainly focused on thermal monitoring
the focus here is on the usability from user space perspective.

References: https://lkml.org/lkml/2011/5/26/93
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/powercap/Kconfig      |   13 +
 drivers/powercap/Makefile     |    1 +
 drivers/powercap/intel_rapl.c | 1395 +++++++++++++++++++++++++++++++++++++++++
 3 files changed, 1409 insertions(+)
 create mode 100644 drivers/powercap/intel_rapl.c

diff --git a/drivers/powercap/Kconfig b/drivers/powercap/Kconfig
index a37055eb5ebc..a7c81b53d88a 100644
--- a/drivers/powercap/Kconfig
+++ b/drivers/powercap/Kconfig
@@ -15,5 +15,18 @@ menuconfig POWERCAP
 
 if POWERCAP
 # Client driver configurations go here.
+config INTEL_RAPL
+	tristate "Intel RAPL Support"
+	depends on X86
+	default n
+	---help---
+	  This enables support for the Intel Running Average Power Limit (RAPL)
+	  technology which allows power limits to be enforced and monitored on
+	  modern Intel processors (Sandy Bridge and later).
+
+	  In RAPL, the platform level settings are divided into domains for
+	  fine grained control. These domains include processor package, DRAM
+	  controller, CPU core (Power Plance 0), graphics uncore (Power Plane
+	  1), etc.
 
 endif
diff --git a/drivers/powercap/Makefile b/drivers/powercap/Makefile
index 6defbc8dc4bf..0a21ef31372b 100644
--- a/drivers/powercap/Makefile
+++ b/drivers/powercap/Makefile
@@ -1 +1,2 @@
 obj-$(CONFIG_POWERCAP)	+= powercap_sys.o
+obj-$(CONFIG_INTEL_RAPL) += intel_rapl.o
diff --git a/drivers/powercap/intel_rapl.c b/drivers/powercap/intel_rapl.c
new file mode 100644
index 000000000000..2a786c504460
--- /dev/null
+++ b/drivers/powercap/intel_rapl.c
@@ -0,0 +1,1395 @@
+/*
+ * Intel Running Average Power Limit (RAPL) Driver
+ * Copyright (c) 2013, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.
+ *
+ */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/list.h>
+#include <linux/types.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/log2.h>
+#include <linux/bitmap.h>
+#include <linux/delay.h>
+#include <linux/sysfs.h>
+#include <linux/cpu.h>
+#include <linux/powercap.h>
+
+#include <asm/processor.h>
+#include <asm/cpu_device_id.h>
+
+/* bitmasks for RAPL MSRs, used by primitive access functions */
+#define ENERGY_STATUS_MASK      0xffffffff
+
+#define POWER_LIMIT1_MASK       0x7FFF
+#define POWER_LIMIT1_ENABLE     BIT(15)
+#define POWER_LIMIT1_CLAMP      BIT(16)
+
+#define POWER_LIMIT2_MASK       (0x7FFFULL<<32)
+#define POWER_LIMIT2_ENABLE     BIT_ULL(47)
+#define POWER_LIMIT2_CLAMP      BIT_ULL(48)
+#define POWER_PACKAGE_LOCK      BIT_ULL(63)
+#define POWER_PP_LOCK           BIT(31)
+
+#define TIME_WINDOW1_MASK       (0x7FULL<<17)
+#define TIME_WINDOW2_MASK       (0x7FULL<<49)
+
+#define POWER_UNIT_OFFSET	0
+#define POWER_UNIT_MASK		0x0F
+
+#define ENERGY_UNIT_OFFSET	0x08
+#define ENERGY_UNIT_MASK	0x1F00
+
+#define TIME_UNIT_OFFSET	0x10
+#define TIME_UNIT_MASK		0xF0000
+
+#define POWER_INFO_MAX_MASK     (0x7fffULL<<32)
+#define POWER_INFO_MIN_MASK     (0x7fffULL<<16)
+#define POWER_INFO_MAX_TIME_WIN_MASK     (0x3fULL<<48)
+#define POWER_INFO_THERMAL_SPEC_MASK     0x7fff
+
+#define PERF_STATUS_THROTTLE_TIME_MASK 0xffffffff
+#define PP_POLICY_MASK         0x1F
+
+/* Non HW constants */
+#define RAPL_PRIMITIVE_DERIVED       BIT(1) /* not from raw data */
+#define RAPL_PRIMITIVE_DUMMY         BIT(2)
+
+/* scale RAPL units to avoid floating point math inside kernel */
+#define POWER_UNIT_SCALE     (1000000)
+#define ENERGY_UNIT_SCALE    (1000000)
+#define TIME_UNIT_SCALE      (1000000)
+
+#define TIME_WINDOW_MAX_MSEC 40000
+#define TIME_WINDOW_MIN_MSEC 250
+
+enum unit_type {
+	ARBITRARY_UNIT, /* no translation */
+	POWER_UNIT,
+	ENERGY_UNIT,
+	TIME_UNIT,
+};
+
+enum rapl_domain_type {
+	RAPL_DOMAIN_PACKAGE, /* entire package/socket */
+	RAPL_DOMAIN_PP0, /* core power plane */
+	RAPL_DOMAIN_PP1, /* graphics uncore */
+	RAPL_DOMAIN_DRAM,/* DRAM control_type */
+	RAPL_DOMAIN_MAX,
+};
+
+enum rapl_domain_msr_id {
+	RAPL_DOMAIN_MSR_LIMIT,
+	RAPL_DOMAIN_MSR_STATUS,
+	RAPL_DOMAIN_MSR_PERF,
+	RAPL_DOMAIN_MSR_POLICY,
+	RAPL_DOMAIN_MSR_INFO,
+	RAPL_DOMAIN_MSR_MAX,
+};
+
+/* per domain data, some are optional */
+enum rapl_primitives {
+	ENERGY_COUNTER,
+	POWER_LIMIT1,
+	POWER_LIMIT2,
+	FW_LOCK,
+
+	PL1_ENABLE,  /* power limit 1, aka long term */
+	PL1_CLAMP,   /* allow frequency to go below OS request */
+	PL2_ENABLE,  /* power limit 2, aka short term, instantaneous */
+	PL2_CLAMP,
+
+	TIME_WINDOW1, /* long term */
+	TIME_WINDOW2, /* short term */
+	THERMAL_SPEC_POWER,
+	MAX_POWER,
+
+	MIN_POWER,
+	MAX_TIME_WINDOW,
+	THROTTLED_TIME,
+	PRIORITY_LEVEL,
+
+	/* below are not raw primitive data */
+	AVERAGE_POWER,
+	NR_RAPL_PRIMITIVES,
+};
+
+#define NR_RAW_PRIMITIVES (NR_RAPL_PRIMITIVES - 2)
+
+/* Can be expanded to include events, etc.*/
+struct rapl_domain_data {
+	u64 primitives[NR_RAPL_PRIMITIVES];
+	unsigned long timestamp;
+};
+
+
+#define	DOMAIN_STATE_INACTIVE           BIT(0)
+#define	DOMAIN_STATE_POWER_LIMIT_SET    BIT(1)
+#define DOMAIN_STATE_BIOS_LOCKED        BIT(2)
+
+#define NR_POWER_LIMITS (2)
+struct rapl_power_limit {
+	struct powercap_zone_constraint *constraint;
+	int prim_id; /* primitive ID used to enable */
+	struct rapl_domain *domain;
+	const char *name;
+};
+
+static const char pl1_name[] = "long_term";
+static const char pl2_name[] = "short_term";
+
+struct rapl_domain {
+	const char *name;
+	enum rapl_domain_type id;
+	int msrs[RAPL_DOMAIN_MSR_MAX];
+	struct powercap_zone power_zone;
+	struct rapl_domain_data rdd;
+	struct rapl_power_limit rpl[NR_POWER_LIMITS];
+	u64 attr_map; /* track capabilities */
+	unsigned int state;
+	int package_id;
+};
+#define power_zone_to_rapl_domain(_zone) \
+	container_of(_zone, struct rapl_domain, power_zone)
+
+
+/* Each physical package contains multiple domains, these are the common
+ * data across RAPL domains within a package.
+ */
+struct rapl_package {
+	unsigned int id; /* physical package/socket id */
+	unsigned int nr_domains;
+	unsigned long domain_map; /* bit map of active domains */
+	unsigned int power_unit_divisor;
+	unsigned int energy_unit_divisor;
+	unsigned int time_unit_divisor;
+	struct rapl_domain *domains; /* array of domains, sized at runtime */
+	struct powercap_zone *power_zone; /* keep track of parent zone */
+	int nr_cpus; /* active cpus on the package, topology info is lost during
+		      * cpu hotplug. so we have to track ourselves.
+		      */
+	unsigned long power_limit_irq; /* keep track of package power limit
+					* notify interrupt enable status.
+					*/
+	struct list_head plist;
+};
+#define PACKAGE_PLN_INT_SAVED   BIT(0)
+#define MAX_PRIM_NAME (32)
+
+/* per domain data. used to describe individual knobs such that access function
+ * can be consolidated into one instead of many inline functions.
+ */
+struct rapl_primitive_info {
+	const char *name;
+	u64 mask;
+	int shift;
+	enum rapl_domain_msr_id id;
+	enum unit_type unit;
+	u32 flag;
+};
+
+#define PRIMITIVE_INFO_INIT(p, m, s, i, u, f) {	\
+		.name = #p,			\
+		.mask = m,			\
+		.shift = s,			\
+		.id = i,			\
+		.unit = u,			\
+		.flag = f			\
+	}
+
+static void rapl_init_domains(struct rapl_package *rp);
+static int rapl_read_data_raw(struct rapl_domain *rd,
+			enum rapl_primitives prim,
+			bool xlate, u64 *data);
+static int rapl_write_data_raw(struct rapl_domain *rd,
+			enum rapl_primitives prim,
+			unsigned long long value);
+static u64 rapl_unit_xlate(int package, enum unit_type type, u64 value,
+			int to_raw);
+static void package_power_limit_irq_save(int package_id);
+
+static LIST_HEAD(rapl_packages); /* guarded by CPU hotplug lock */
+
+static const char * const rapl_domain_names[] = {
+	"package",
+	"core",
+	"uncore",
+	"dram",
+};
+
+static struct powercap_control_type *control_type; /* PowerCap Controller */
+
+/* caller to ensure CPU hotplug lock is held */
+static struct rapl_package *find_package_by_id(int id)
+{
+	struct rapl_package *rp;
+
+	list_for_each_entry(rp, &rapl_packages, plist) {
+		if (rp->id == id)
+			return rp;
+	}
+
+	return NULL;
+}
+
+/* caller to ensure CPU hotplug lock is held */
+static int find_active_cpu_on_package(int package_id)
+{
+	int i;
+
+	for_each_online_cpu(i) {
+		if (topology_physical_package_id(i) == package_id)
+			return i;
+	}
+	/* all CPUs on this package are offline */
+
+	return -ENODEV;
+}
+
+/* caller must hold cpu hotplug lock */
+static void rapl_cleanup_data(void)
+{
+	struct rapl_package *p, *tmp;
+
+	list_for_each_entry_safe(p, tmp, &rapl_packages, plist) {
+		kfree(p->domains);
+		list_del(&p->plist);
+		kfree(p);
+	}
+}
+
+static int get_energy_counter(struct powercap_zone *power_zone, u64 *energy_raw)
+{
+	struct rapl_domain *rd;
+	u64 energy_now;
+
+	/* prevent CPU hotplug, make sure the RAPL domain does not go
+	 * away while reading the counter.
+	 */
+	get_online_cpus();
+	rd = power_zone_to_rapl_domain(power_zone);
+
+	if (!rapl_read_data_raw(rd, ENERGY_COUNTER, true, &energy_now)) {
+		*energy_raw = energy_now;
+		put_online_cpus();
+
+		return 0;
+	}
+	put_online_cpus();
+
+	return -EIO;
+}
+
+static int get_max_energy_counter(struct powercap_zone *pcd_dev, u64 *energy)
+{
+	*energy = rapl_unit_xlate(0, ENERGY_UNIT, ENERGY_STATUS_MASK, 0);
+	return 0;
+}
+
+static int release_zone(struct powercap_zone *power_zone)
+{
+	struct rapl_domain *rd = power_zone_to_rapl_domain(power_zone);
+	struct rapl_package *rp;
+
+	/* package zone is the last zone of a package, we can free
+	 * memory here since all children has been unregistered.
+	 */
+	if (rd->id == RAPL_DOMAIN_PACKAGE) {
+		rp = find_package_by_id(rd->package_id);
+		if (!rp) {
+			dev_warn(&power_zone->dev, "no package id %s\n",
+				rd->name);
+			return -ENODEV;
+		}
+		kfree(rd);
+		rp->domains = NULL;
+	}
+
+	return 0;
+
+}
+
+static int find_nr_power_limit(struct rapl_domain *rd)
+{
+	int i;
+
+	for (i = 0; i < NR_POWER_LIMITS; i++) {
+		if (rd->rpl[i].name == NULL)
+			break;
+	}
+
+	return i;
+}
+
+static int set_domain_enable(struct powercap_zone *power_zone, bool mode)
+{
+	struct rapl_domain *rd = power_zone_to_rapl_domain(power_zone);
+	int nr_powerlimit;
+
+	if (rd->state & DOMAIN_STATE_BIOS_LOCKED)
+		return -EACCES;
+	get_online_cpus();
+	nr_powerlimit = find_nr_power_limit(rd);
+	/* here we activate/deactivate the hardware for power limiting */
+	rapl_write_data_raw(rd, PL1_ENABLE, mode);
+	/* always enable clamp such that p-state can go below OS requested
+	 * range. power capping priority over guranteed frequency.
+	 */
+	rapl_write_data_raw(rd, PL1_CLAMP, mode);
+	/* some domains have pl2 */
+	if (nr_powerlimit > 1) {
+		rapl_write_data_raw(rd, PL2_ENABLE, mode);
+		rapl_write_data_raw(rd, PL2_CLAMP, mode);
+	}
+	put_online_cpus();
+
+	return 0;
+}
+
+static int get_domain_enable(struct powercap_zone *power_zone, bool *mode)
+{
+	struct rapl_domain *rd = power_zone_to_rapl_domain(power_zone);
+	u64 val;
+
+	if (rd->state & DOMAIN_STATE_BIOS_LOCKED) {
+		*mode = false;
+		return 0;
+	}
+	get_online_cpus();
+	if (rapl_read_data_raw(rd, PL1_ENABLE, true, &val)) {
+		put_online_cpus();
+		return -EIO;
+	}
+	*mode = val;
+	put_online_cpus();
+
+	return 0;
+}
+
+/* per RAPL domain ops, in the order of rapl_domain_type */
+static struct powercap_zone_ops zone_ops[] = {
+	/* RAPL_DOMAIN_PACKAGE */
+	{
+		.get_energy_uj = get_energy_counter,
+		.get_max_energy_range_uj = get_max_energy_counter,
+		.release = release_zone,
+		.set_enable = set_domain_enable,
+		.get_enable = get_domain_enable,
+	},
+	/* RAPL_DOMAIN_PP0 */
+	{
+		.get_energy_uj = get_energy_counter,
+		.get_max_energy_range_uj = get_max_energy_counter,
+		.release = release_zone,
+		.set_enable = set_domain_enable,
+		.get_enable = get_domain_enable,
+	},
+	/* RAPL_DOMAIN_PP1 */
+	{
+		.get_energy_uj = get_energy_counter,
+		.get_max_energy_range_uj = get_max_energy_counter,
+		.release = release_zone,
+		.set_enable = set_domain_enable,
+		.get_enable = get_domain_enable,
+	},
+	/* RAPL_DOMAIN_DRAM */
+	{
+		.get_energy_uj = get_energy_counter,
+		.get_max_energy_range_uj = get_max_energy_counter,
+		.release = release_zone,
+		.set_enable = set_domain_enable,
+		.get_enable = get_domain_enable,
+	},
+};
+
+static int set_power_limit(struct powercap_zone *power_zone, int id,
+			u64 power_limit)
+{
+	struct rapl_domain *rd;
+	struct rapl_package *rp;
+	int ret = 0;
+
+	get_online_cpus();
+	rd = power_zone_to_rapl_domain(power_zone);
+	rp = find_package_by_id(rd->package_id);
+	if (!rp) {
+		ret = -ENODEV;
+		goto set_exit;
+	}
+
+	if (rd->state & DOMAIN_STATE_BIOS_LOCKED) {
+		dev_warn(&power_zone->dev, "%s locked by BIOS, monitoring only\n",
+			rd->name);
+		ret = -EACCES;
+		goto set_exit;
+	}
+
+	switch (rd->rpl[id].prim_id) {
+	case PL1_ENABLE:
+		rapl_write_data_raw(rd, POWER_LIMIT1, power_limit);
+		break;
+	case PL2_ENABLE:
+		rapl_write_data_raw(rd, POWER_LIMIT2, power_limit);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+	if (!ret)
+		package_power_limit_irq_save(rd->package_id);
+set_exit:
+	put_online_cpus();
+	return ret;
+}
+
+static int get_current_power_limit(struct powercap_zone *power_zone, int id,
+					u64 *data)
+{
+	struct rapl_domain *rd;
+	u64 val;
+	int prim;
+	int ret = 0;
+
+	get_online_cpus();
+	rd = power_zone_to_rapl_domain(power_zone);
+	switch (rd->rpl[id].prim_id) {
+	case PL1_ENABLE:
+		prim = POWER_LIMIT1;
+		break;
+	case PL2_ENABLE:
+		prim = POWER_LIMIT2;
+		break;
+	default:
+		put_online_cpus();
+		return -EINVAL;
+	}
+	if (rapl_read_data_raw(rd, prim, true, &val))
+		ret = -EIO;
+	else
+		*data = val;
+
+	put_online_cpus();
+
+	return ret;
+}
+
+static int set_time_window(struct powercap_zone *power_zone, int id,
+								u64 window)
+{
+	struct rapl_domain *rd;
+	int ret = 0;
+
+	get_online_cpus();
+	rd = power_zone_to_rapl_domain(power_zone);
+	switch (rd->rpl[id].prim_id) {
+	case PL1_ENABLE:
+		rapl_write_data_raw(rd, TIME_WINDOW1, window);
+		break;
+	case PL2_ENABLE:
+		rapl_write_data_raw(rd, TIME_WINDOW2, window);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+	put_online_cpus();
+	return ret;
+}
+
+static int get_time_window(struct powercap_zone *power_zone, int id, u64 *data)
+{
+	struct rapl_domain *rd;
+	u64 val;
+	int ret = 0;
+
+	get_online_cpus();
+	rd = power_zone_to_rapl_domain(power_zone);
+	switch (rd->rpl[id].prim_id) {
+	case PL1_ENABLE:
+		ret = rapl_read_data_raw(rd, TIME_WINDOW1, true, &val);
+		break;
+	case PL2_ENABLE:
+		ret = rapl_read_data_raw(rd, TIME_WINDOW2, true, &val);
+		break;
+	default:
+		put_online_cpus();
+		return -EINVAL;
+	}
+	if (!ret)
+		*data = val;
+	put_online_cpus();
+
+	return ret;
+}
+
+static const char *get_constraint_name(struct powercap_zone *power_zone, int id)
+{
+	struct rapl_power_limit *rpl;
+	struct rapl_domain *rd;
+
+	rd = power_zone_to_rapl_domain(power_zone);
+	rpl = (struct rapl_power_limit *) &rd->rpl[id];
+
+	return rpl->name;
+}
+
+
+static int get_max_power(struct powercap_zone *power_zone, int id,
+					u64 *data)
+{
+	struct rapl_domain *rd;
+	u64 val;
+	int prim;
+	int ret = 0;
+
+	get_online_cpus();
+	rd = power_zone_to_rapl_domain(power_zone);
+	switch (rd->rpl[id].prim_id) {
+	case PL1_ENABLE:
+		prim = THERMAL_SPEC_POWER;
+		break;
+	case PL2_ENABLE:
+		prim = MAX_POWER;
+		break;
+	default:
+		put_online_cpus();
+		return -EINVAL;
+	}
+	if (rapl_read_data_raw(rd, prim, true, &val))
+		ret = -EIO;
+	else
+		*data = val;
+
+	put_online_cpus();
+
+	return ret;
+}
+
+static struct powercap_zone_constraint_ops constraint_ops = {
+	.set_power_limit_uw = set_power_limit,
+	.get_power_limit_uw = get_current_power_limit,
+	.set_time_window_us = set_time_window,
+	.get_time_window_us = get_time_window,
+	.get_max_power_uw = get_max_power,
+	.get_name = get_constraint_name,
+};
+
+/* called after domain detection and package level data are set */
+static void rapl_init_domains(struct rapl_package *rp)
+{
+	int i;
+	struct rapl_domain *rd = rp->domains;
+
+	for (i = 0; i < RAPL_DOMAIN_MAX; i++) {
+		unsigned int mask = rp->domain_map & (1 << i);
+		switch (mask) {
+		case BIT(RAPL_DOMAIN_PACKAGE):
+			rd->name = rapl_domain_names[RAPL_DOMAIN_PACKAGE];
+			rd->id = RAPL_DOMAIN_PACKAGE;
+			rd->msrs[0] = MSR_PKG_POWER_LIMIT;
+			rd->msrs[1] = MSR_PKG_ENERGY_STATUS;
+			rd->msrs[2] = MSR_PKG_PERF_STATUS;
+			rd->msrs[3] = 0;
+			rd->msrs[4] = MSR_PKG_POWER_INFO;
+			rd->rpl[0].prim_id = PL1_ENABLE;
+			rd->rpl[0].name = pl1_name;
+			rd->rpl[1].prim_id = PL2_ENABLE;
+			rd->rpl[1].name = pl2_name;
+			break;
+		case BIT(RAPL_DOMAIN_PP0):
+			rd->name = rapl_domain_names[RAPL_DOMAIN_PP0];
+			rd->id = RAPL_DOMAIN_PP0;
+			rd->msrs[0] = MSR_PP0_POWER_LIMIT;
+			rd->msrs[1] = MSR_PP0_ENERGY_STATUS;
+			rd->msrs[2] = 0;
+			rd->msrs[3] = MSR_PP0_POLICY;
+			rd->msrs[4] = 0;
+			rd->rpl[0].prim_id = PL1_ENABLE;
+			rd->rpl[0].name = pl1_name;
+			break;
+		case BIT(RAPL_DOMAIN_PP1):
+			rd->name = rapl_domain_names[RAPL_DOMAIN_PP1];
+			rd->id = RAPL_DOMAIN_PP1;
+			rd->msrs[0] = MSR_PP1_POWER_LIMIT;
+			rd->msrs[1] = MSR_PP1_ENERGY_STATUS;
+			rd->msrs[2] = 0;
+			rd->msrs[3] = MSR_PP1_POLICY;
+			rd->msrs[4] = 0;
+			rd->rpl[0].prim_id = PL1_ENABLE;
+			rd->rpl[0].name = pl1_name;
+			break;
+		case BIT(RAPL_DOMAIN_DRAM):
+			rd->name = rapl_domain_names[RAPL_DOMAIN_DRAM];
+			rd->id = RAPL_DOMAIN_DRAM;
+			rd->msrs[0] = MSR_DRAM_POWER_LIMIT;
+			rd->msrs[1] = MSR_DRAM_ENERGY_STATUS;
+			rd->msrs[2] = MSR_DRAM_PERF_STATUS;
+			rd->msrs[3] = 0;
+			rd->msrs[4] = MSR_DRAM_POWER_INFO;
+			rd->rpl[0].prim_id = PL1_ENABLE;
+			rd->rpl[0].name = pl1_name;
+			break;
+		}
+		if (mask) {
+			rd->package_id = rp->id;
+			rd++;
+		}
+	}
+}
+
+static u64 rapl_unit_xlate(int package, enum unit_type type, u64 value,
+			int to_raw)
+{
+	u64 divisor = 1;
+	int scale = 1; /* scale to user friendly data without floating point */
+	u64 f, y; /* fraction and exp. used for time unit */
+	struct rapl_package *rp;
+
+	rp = find_package_by_id(package);
+	if (!rp)
+		return value;
+
+	switch (type) {
+	case POWER_UNIT:
+		divisor = rp->power_unit_divisor;
+		scale = POWER_UNIT_SCALE;
+		break;
+	case ENERGY_UNIT:
+		scale = ENERGY_UNIT_SCALE;
+		divisor = rp->energy_unit_divisor;
+		break;
+	case TIME_UNIT:
+		divisor = rp->time_unit_divisor;
+		scale = TIME_UNIT_SCALE;
+		/* special processing based on 2^Y*(1+F)/4 = val/divisor, refer
+		 * to Intel Software Developer's manual Vol. 3a, CH 14.7.4.
+		 */
+		if (!to_raw) {
+			f = (value & 0x60) >> 5;
+			y = value & 0x1f;
+			value = (1 << y) * (4 + f) * scale / 4;
+			return div64_u64(value, divisor);
+		} else {
+			do_div(value, scale);
+			value *= divisor;
+			y = ilog2(value);
+			f = div64_u64(4 * (value - (1 << y)), 1 << y);
+			value = (y & 0x1f) | ((f & 0x3) << 5);
+			return value;
+		}
+		break;
+	case ARBITRARY_UNIT:
+	default:
+		return value;
+	};
+
+	if (to_raw)
+		return div64_u64(value * divisor, scale);
+	else
+		return div64_u64(value * scale, divisor);
+}
+
+/* in the order of enum rapl_primitives */
+static struct rapl_primitive_info rpi[] = {
+	/* name, mask, shift, msr index, unit divisor */
+	PRIMITIVE_INFO_INIT(ENERGY_COUNTER, ENERGY_STATUS_MASK, 0,
+				RAPL_DOMAIN_MSR_STATUS, ENERGY_UNIT, 0),
+	PRIMITIVE_INFO_INIT(POWER_LIMIT1, POWER_LIMIT1_MASK, 0,
+				RAPL_DOMAIN_MSR_LIMIT, POWER_UNIT, 0),
+	PRIMITIVE_INFO_INIT(POWER_LIMIT2, POWER_LIMIT2_MASK, 32,
+				RAPL_DOMAIN_MSR_LIMIT, POWER_UNIT, 0),
+	PRIMITIVE_INFO_INIT(FW_LOCK, POWER_PP_LOCK, 31,
+				RAPL_DOMAIN_MSR_LIMIT, ARBITRARY_UNIT, 0),
+	PRIMITIVE_INFO_INIT(PL1_ENABLE, POWER_LIMIT1_ENABLE, 15,
+				RAPL_DOMAIN_MSR_LIMIT, ARBITRARY_UNIT, 0),
+	PRIMITIVE_INFO_INIT(PL1_CLAMP, POWER_LIMIT1_CLAMP, 16,
+				RAPL_DOMAIN_MSR_LIMIT, ARBITRARY_UNIT, 0),
+	PRIMITIVE_INFO_INIT(PL2_ENABLE, POWER_LIMIT2_ENABLE, 47,
+				RAPL_DOMAIN_MSR_LIMIT, ARBITRARY_UNIT, 0),
+	PRIMITIVE_INFO_INIT(PL2_CLAMP, POWER_LIMIT2_CLAMP, 48,
+				RAPL_DOMAIN_MSR_LIMIT, ARBITRARY_UNIT, 0),
+	PRIMITIVE_INFO_INIT(TIME_WINDOW1, TIME_WINDOW1_MASK, 17,
+				RAPL_DOMAIN_MSR_LIMIT, TIME_UNIT, 0),
+	PRIMITIVE_INFO_INIT(TIME_WINDOW2, TIME_WINDOW2_MASK, 49,
+				RAPL_DOMAIN_MSR_LIMIT, TIME_UNIT, 0),
+	PRIMITIVE_INFO_INIT(THERMAL_SPEC_POWER, POWER_INFO_THERMAL_SPEC_MASK,
+				0, RAPL_DOMAIN_MSR_INFO, POWER_UNIT, 0),
+	PRIMITIVE_INFO_INIT(MAX_POWER, POWER_INFO_MAX_MASK, 32,
+				RAPL_DOMAIN_MSR_INFO, POWER_UNIT, 0),
+	PRIMITIVE_INFO_INIT(MIN_POWER, POWER_INFO_MIN_MASK, 16,
+				RAPL_DOMAIN_MSR_INFO, POWER_UNIT, 0),
+	PRIMITIVE_INFO_INIT(MAX_TIME_WINDOW, POWER_INFO_MAX_TIME_WIN_MASK, 48,
+				RAPL_DOMAIN_MSR_INFO, TIME_UNIT, 0),
+	PRIMITIVE_INFO_INIT(THROTTLED_TIME, PERF_STATUS_THROTTLE_TIME_MASK, 0,
+				RAPL_DOMAIN_MSR_PERF, TIME_UNIT, 0),
+	PRIMITIVE_INFO_INIT(PRIORITY_LEVEL, PP_POLICY_MASK, 0,
+				RAPL_DOMAIN_MSR_POLICY, ARBITRARY_UNIT, 0),
+	/* non-hardware */
+	PRIMITIVE_INFO_INIT(AVERAGE_POWER, 0, 0, 0, POWER_UNIT,
+				RAPL_PRIMITIVE_DERIVED),
+	{NULL, 0, 0, 0},
+};
+
+/* Read primitive data based on its related struct rapl_primitive_info.
+ * if xlate flag is set, return translated data based on data units, i.e.
+ * time, energy, and power.
+ * RAPL MSRs are non-architectual and are laid out not consistently across
+ * domains. Here we use primitive info to allow writing consolidated access
+ * functions.
+ * For a given primitive, it is processed by MSR mask and shift. Unit conversion
+ * is pre-assigned based on RAPL unit MSRs read at init time.
+ * 63-------------------------- 31--------------------------- 0
+ * |                           xxxxx (mask)                   |
+ * |                                |<- shift ----------------|
+ * 63-------------------------- 31--------------------------- 0
+ */
+static int rapl_read_data_raw(struct rapl_domain *rd,
+			enum rapl_primitives prim,
+			bool xlate, u64 *data)
+{
+	u64 value, final;
+	u32 msr;
+	struct rapl_primitive_info *rp = &rpi[prim];
+	int cpu;
+
+	if (!rp->name || rp->flag & RAPL_PRIMITIVE_DUMMY)
+		return -EINVAL;
+
+	msr = rd->msrs[rp->id];
+	if (!msr)
+		return -EINVAL;
+	/* use physical package id to look up active cpus */
+	cpu = find_active_cpu_on_package(rd->package_id);
+	if (cpu < 0)
+		return cpu;
+
+	/* special-case package domain, which uses a different bit*/
+	if (prim == FW_LOCK && rd->id == RAPL_DOMAIN_PACKAGE) {
+		rp->mask = POWER_PACKAGE_LOCK;
+		rp->shift = 63;
+	}
+	/* non-hardware data are collected by the polling thread */
+	if (rp->flag & RAPL_PRIMITIVE_DERIVED) {
+		*data = rd->rdd.primitives[prim];
+		return 0;
+	}
+
+	if (rdmsrl_safe_on_cpu(cpu, msr, &value)) {
+		pr_debug("failed to read msr 0x%x on cpu %d\n", msr, cpu);
+		return -EIO;
+	}
+
+	final = value & rp->mask;
+	final = final >> rp->shift;
+	if (xlate)
+		*data = rapl_unit_xlate(rd->package_id, rp->unit, final, 0);
+	else
+		*data = final;
+
+	return 0;
+}
+
+/* Similar use of primitive info in the read counterpart */
+static int rapl_write_data_raw(struct rapl_domain *rd,
+			enum rapl_primitives prim,
+			unsigned long long value)
+{
+	u64 msr_val;
+	u32 msr;
+	struct rapl_primitive_info *rp = &rpi[prim];
+	int cpu;
+
+	cpu = find_active_cpu_on_package(rd->package_id);
+	if (cpu < 0)
+		return cpu;
+	msr = rd->msrs[rp->id];
+	if (rdmsrl_safe_on_cpu(cpu, msr, &msr_val)) {
+		dev_dbg(&rd->power_zone.dev,
+			"failed to read msr 0x%x on cpu %d\n", msr, cpu);
+		return -EIO;
+	}
+	value = rapl_unit_xlate(rd->package_id, rp->unit, value, 1);
+	msr_val &= ~rp->mask;
+	msr_val |= value << rp->shift;
+	if (wrmsrl_safe_on_cpu(cpu, msr, msr_val)) {
+		dev_dbg(&rd->power_zone.dev,
+			"failed to write msr 0x%x on cpu %d\n", msr, cpu);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int rapl_check_unit(struct rapl_package *rp, int cpu)
+{
+	u64 msr_val;
+	u32 value;
+
+	if (rdmsrl_safe_on_cpu(cpu, MSR_RAPL_POWER_UNIT, &msr_val)) {
+		pr_err("Failed to read power unit MSR 0x%x on CPU %d, exit.\n",
+			MSR_RAPL_POWER_UNIT, cpu);
+		return -ENODEV;
+	}
+
+	/* Raw RAPL data stored in MSRs are in certain scales. We need to
+	 * convert them into standard units based on the divisors reported in
+	 * the RAPL unit MSRs.
+	 * i.e.
+	 * energy unit: 1/enery_unit_divisor Joules
+	 * power unit: 1/power_unit_divisor Watts
+	 * time unit: 1/time_unit_divisor Seconds
+	 */
+	value = (msr_val & ENERGY_UNIT_MASK) >> ENERGY_UNIT_OFFSET;
+	rp->energy_unit_divisor = 1 << value;
+
+
+	value = (msr_val & POWER_UNIT_MASK) >> POWER_UNIT_OFFSET;
+	rp->power_unit_divisor = 1 << value;
+
+	value = (msr_val & TIME_UNIT_MASK) >> TIME_UNIT_OFFSET;
+	rp->time_unit_divisor = 1 << value;
+
+	pr_debug("Physical package %d units: energy=%d, time=%d, power=%d\n",
+		rp->id,
+		rp->energy_unit_divisor,
+		rp->time_unit_divisor,
+		rp->power_unit_divisor);
+
+	return 0;
+}
+
+/* REVISIT:
+ * When package power limit is set artificially low by RAPL, LVT
+ * thermal interrupt for package power limit should be ignored
+ * since we are not really exceeding the real limit. The intention
+ * is to avoid excessive interrupts while we are trying to save power.
+ * A useful feature might be routing the package_power_limit interrupt
+ * to userspace via eventfd. once we have a usecase, this is simple
+ * to do by adding an atomic notifier.
+ */
+
+static void package_power_limit_irq_save(int package_id)
+{
+	u32 l, h = 0;
+	int cpu;
+	struct rapl_package *rp;
+
+	rp = find_package_by_id(package_id);
+	if (!rp)
+		return;
+
+	if (!boot_cpu_has(X86_FEATURE_PTS) || !boot_cpu_has(X86_FEATURE_PLN))
+		return;
+
+	cpu = find_active_cpu_on_package(package_id);
+	if (cpu < 0)
+		return;
+	/* save the state of PLN irq mask bit before disabling it */
+	rdmsr_safe_on_cpu(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, &l, &h);
+	if (!(rp->power_limit_irq & PACKAGE_PLN_INT_SAVED)) {
+		rp->power_limit_irq = l & PACKAGE_THERM_INT_PLN_ENABLE;
+		rp->power_limit_irq |= PACKAGE_PLN_INT_SAVED;
+	}
+	l &= ~PACKAGE_THERM_INT_PLN_ENABLE;
+	wrmsr_on_cpu(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, l, h);
+}
+
+/* restore per package power limit interrupt enable state */
+static void package_power_limit_irq_restore(int package_id)
+{
+	u32 l, h;
+	int cpu;
+	struct rapl_package *rp;
+
+	rp = find_package_by_id(package_id);
+	if (!rp)
+		return;
+
+	if (!boot_cpu_has(X86_FEATURE_PTS) || !boot_cpu_has(X86_FEATURE_PLN))
+		return;
+
+	cpu = find_active_cpu_on_package(package_id);
+	if (cpu < 0)
+		return;
+
+	/* irq enable state not saved, nothing to restore */
+	if (!(rp->power_limit_irq & PACKAGE_PLN_INT_SAVED))
+		return;
+	rdmsr_safe_on_cpu(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, &l, &h);
+
+	if (rp->power_limit_irq & PACKAGE_THERM_INT_PLN_ENABLE)
+		l |= PACKAGE_THERM_INT_PLN_ENABLE;
+	else
+		l &= ~PACKAGE_THERM_INT_PLN_ENABLE;
+
+	wrmsr_on_cpu(cpu, MSR_IA32_PACKAGE_THERM_INTERRUPT, l, h);
+}
+
+static const struct x86_cpu_id rapl_ids[] = {
+	{ X86_VENDOR_INTEL, 6, 0x2a},/* SNB */
+	{ X86_VENDOR_INTEL, 6, 0x2d},/* SNB EP */
+	{ X86_VENDOR_INTEL, 6, 0x3a},/* IVB */
+	{ X86_VENDOR_INTEL, 6, 0x45},/* HSW */
+	/* TODO: Add more CPU IDs after testing */
+	{}
+};
+MODULE_DEVICE_TABLE(x86cpu, rapl_ids);
+
+/* read once for all raw primitive data for all packages, domains */
+static void rapl_update_domain_data(void)
+{
+	int dmn, prim;
+	u64 val;
+	struct rapl_package *rp;
+
+	list_for_each_entry(rp, &rapl_packages, plist) {
+		for (dmn = 0; dmn < rp->nr_domains; dmn++) {
+			pr_debug("update package %d domain %s data\n", rp->id,
+				rp->domains[dmn].name);
+			/* exclude non-raw primitives */
+			for (prim = 0; prim < NR_RAW_PRIMITIVES; prim++)
+				if (!rapl_read_data_raw(&rp->domains[dmn], prim,
+								rpi[prim].unit,
+								&val))
+					rp->domains[dmn].rdd.primitives[prim] =
+									val;
+		}
+	}
+
+}
+
+static int rapl_unregister_powercap(void)
+{
+	struct rapl_package *rp;
+	struct rapl_domain *rd, *rd_package = NULL;
+
+	/* unregister all active rapl packages from the powercap layer,
+	 * hotplug lock held
+	 */
+	list_for_each_entry(rp, &rapl_packages, plist) {
+		package_power_limit_irq_restore(rp->id);
+
+		for (rd = rp->domains; rd < rp->domains + rp->nr_domains;
+		     rd++) {
+			pr_debug("remove package, undo power limit on %d: %s\n",
+				rp->id, rd->name);
+			rapl_write_data_raw(rd, PL1_ENABLE, 0);
+			rapl_write_data_raw(rd, PL2_ENABLE, 0);
+			rapl_write_data_raw(rd, PL1_CLAMP, 0);
+			rapl_write_data_raw(rd, PL2_CLAMP, 0);
+			if (rd->id == RAPL_DOMAIN_PACKAGE) {
+				rd_package = rd;
+				continue;
+			}
+			powercap_unregister_zone(control_type, &rd->power_zone);
+		}
+		/* do the package zone last */
+		if (rd_package)
+			powercap_unregister_zone(control_type,
+						&rd_package->power_zone);
+	}
+	powercap_unregister_control_type(control_type);
+
+	return 0;
+}
+
+static int rapl_package_register_powercap(struct rapl_package *rp)
+{
+	struct rapl_domain *rd;
+	int ret = 0;
+	char dev_name[17]; /* max domain name = 7 + 1 + 8 for int + 1 for null*/
+	struct powercap_zone *power_zone = NULL;
+	int nr_pl;
+
+	/* first we register package domain as the parent zone*/
+	for (rd = rp->domains; rd < rp->domains + rp->nr_domains; rd++) {
+		if (rd->id == RAPL_DOMAIN_PACKAGE) {
+			nr_pl = find_nr_power_limit(rd);
+			pr_debug("register socket %d package domain %s\n",
+				rp->id, rd->name);
+			memset(dev_name, 0, sizeof(dev_name));
+			snprintf(dev_name, sizeof(dev_name), "%s-%d",
+				rd->name, rp->id);
+			power_zone = powercap_register_zone(&rd->power_zone,
+							control_type,
+							dev_name, NULL,
+							&zone_ops[rd->id],
+							nr_pl,
+							&constraint_ops);
+			if (IS_ERR(power_zone)) {
+				pr_debug("failed to register package, %d\n",
+					rp->id);
+				ret = PTR_ERR(power_zone);
+				goto exit_package;
+			}
+			/* track parent zone in per package/socket data */
+			rp->power_zone = power_zone;
+			/* done, only one package domain per socket */
+			break;
+		}
+	}
+	if (!power_zone) {
+		pr_err("no package domain found, unknown topology!\n");
+		ret = -ENODEV;
+		goto exit_package;
+	}
+	/* now register domains as children of the socket/package*/
+	for (rd = rp->domains; rd < rp->domains + rp->nr_domains; rd++) {
+		if (rd->id == RAPL_DOMAIN_PACKAGE)
+			continue;
+		/* number of power limits per domain varies */
+		nr_pl = find_nr_power_limit(rd);
+		power_zone = powercap_register_zone(&rd->power_zone,
+						control_type, rd->name,
+						rp->power_zone,
+						&zone_ops[rd->id], nr_pl,
+						&constraint_ops);
+
+		if (IS_ERR(power_zone)) {
+			pr_debug("failed to register power_zone, %d:%s:%s\n",
+				rp->id, rd->name, dev_name);
+			ret = PTR_ERR(power_zone);
+			goto err_cleanup;
+		}
+	}
+
+exit_package:
+	return ret;
+err_cleanup:
+	/* clean up previously initialized domains within the package if we
+	 * failed after the first domain setup.
+	 */
+	while (--rd >= rp->domains) {
+		pr_debug("unregister package %d domain %s\n", rp->id, rd->name);
+		powercap_unregister_zone(control_type, &rd->power_zone);
+	}
+
+	return ret;
+}
+
+static int rapl_register_powercap(void)
+{
+	struct rapl_domain *rd;
+	struct rapl_package *rp;
+	int ret = 0;
+
+	control_type = powercap_register_control_type(NULL, "intel-rapl", NULL);
+	if (IS_ERR(control_type)) {
+		pr_debug("failed to register powercap control_type.\n");
+		return PTR_ERR(control_type);
+	}
+	/* read the initial data */
+	rapl_update_domain_data();
+	list_for_each_entry(rp, &rapl_packages, plist)
+		if (rapl_package_register_powercap(rp))
+			goto err_cleanup_package;
+	return ret;
+
+err_cleanup_package:
+	/* clean up previously initialized packages */
+	list_for_each_entry_continue_reverse(rp, &rapl_packages, plist) {
+		for (rd = rp->domains; rd < rp->domains + rp->nr_domains;
+		     rd++) {
+			pr_debug("unregister zone/package %d, %s domain\n",
+				rp->id, rd->name);
+			powercap_unregister_zone(control_type, &rd->power_zone);
+		}
+	}
+
+	return ret;
+}
+
+static int rapl_check_domain(int cpu, int domain)
+{
+	unsigned msr;
+	u64 val1, val2 = 0;
+	int retry = 0;
+
+	switch (domain) {
+	case RAPL_DOMAIN_PACKAGE:
+		msr = MSR_PKG_ENERGY_STATUS;
+		break;
+	case RAPL_DOMAIN_PP0:
+		msr = MSR_PP0_ENERGY_STATUS;
+		break;
+	case RAPL_DOMAIN_PP1:
+		msr = MSR_PP1_ENERGY_STATUS;
+		break;
+	case RAPL_DOMAIN_DRAM:
+		msr = MSR_DRAM_ENERGY_STATUS;
+		break;
+	default:
+		pr_err("invalid domain id %d\n", domain);
+		return -EINVAL;
+	}
+	if (rdmsrl_safe_on_cpu(cpu, msr, &val1))
+		return -ENODEV;
+
+	/* energy counters roll slowly on some domains */
+	while (++retry < 10) {
+		usleep_range(10000, 15000);
+		rdmsrl_safe_on_cpu(cpu, msr, &val2);
+		if ((val1 & ENERGY_STATUS_MASK) != (val2 & ENERGY_STATUS_MASK))
+			return 0;
+	}
+	/* if energy counter does not change, report as bad domain */
+	pr_info("domain %s energy ctr %llu:%llu not working, skip\n",
+		rapl_domain_names[domain], val1, val2);
+
+	return -ENODEV;
+}
+
+/* Detect active and valid domains for the given CPU, caller must
+ * ensure the CPU belongs to the targeted package and CPU hotlug is disabled.
+ */
+static int rapl_detect_domains(struct rapl_package *rp, int cpu)
+{
+	int i;
+	int ret = 0;
+	struct rapl_domain *rd;
+	u64 locked;
+
+	for (i = 0; i < RAPL_DOMAIN_MAX; i++) {
+		/* use physical package id to read counters */
+		if (!rapl_check_domain(cpu, i))
+			rp->domain_map |= 1 << i;
+	}
+	rp->nr_domains = bitmap_weight(&rp->domain_map,	RAPL_DOMAIN_MAX);
+	if (!rp->nr_domains) {
+		pr_err("no valid rapl domains found in package %d\n", rp->id);
+		ret = -ENODEV;
+		goto done;
+	}
+	pr_debug("found %d domains on package %d\n", rp->nr_domains, rp->id);
+
+	rp->domains = kcalloc(rp->nr_domains + 1, sizeof(struct rapl_domain),
+			GFP_KERNEL);
+	if (!rp->domains) {
+		ret = -ENOMEM;
+		goto done;
+	}
+	rapl_init_domains(rp);
+
+	for (rd = rp->domains; rd < rp->domains + rp->nr_domains; rd++) {
+		/* check if the domain is locked by BIOS */
+		if (rapl_read_data_raw(rd, FW_LOCK, false, &locked)) {
+			pr_info("RAPL package %d domain %s locked by BIOS\n",
+				rp->id, rd->name);
+				rd->state |= DOMAIN_STATE_BIOS_LOCKED;
+		}
+	}
+
+
+done:
+	return ret;
+}
+
+static bool is_package_new(int package)
+{
+	struct rapl_package *rp;
+
+	/* caller prevents cpu hotplug, there will be no new packages added
+	 * or deleted while traversing the package list, no need for locking.
+	 */
+	list_for_each_entry(rp, &rapl_packages, plist)
+		if (package == rp->id)
+			return false;
+
+	return true;
+}
+
+/* RAPL interface can be made of a two-level hierarchy: package level and domain
+ * level. We first detect the number of packages then domains of each package.
+ * We have to consider the possiblity of CPU online/offline due to hotplug and
+ * other scenarios.
+ */
+static int rapl_detect_topology(void)
+{
+	int i;
+	int phy_package_id;
+	struct rapl_package *new_package, *rp;
+
+	for_each_online_cpu(i) {
+		phy_package_id = topology_physical_package_id(i);
+		if (is_package_new(phy_package_id)) {
+			new_package = kzalloc(sizeof(*rp), GFP_KERNEL);
+			if (!new_package) {
+				rapl_cleanup_data();
+				return -ENOMEM;
+			}
+			/* add the new package to the list */
+			new_package->id = phy_package_id;
+			new_package->nr_cpus = 1;
+
+			/* check if the package contains valid domains */
+			if (rapl_detect_domains(new_package, i) ||
+				rapl_check_unit(new_package, i)) {
+				kfree(new_package->domains);
+				kfree(new_package);
+				/* free up the packages already initialized */
+				rapl_cleanup_data();
+				return -ENODEV;
+			}
+			INIT_LIST_HEAD(&new_package->plist);
+			list_add(&new_package->plist, &rapl_packages);
+		} else {
+			rp = find_package_by_id(phy_package_id);
+			if (rp)
+				++rp->nr_cpus;
+		}
+	}
+
+	return 0;
+}
+
+/* called from CPU hotplug notifier, hotplug lock held */
+static void rapl_remove_package(struct rapl_package *rp)
+{
+	struct rapl_domain *rd, *rd_package = NULL;
+
+	for (rd = rp->domains; rd < rp->domains + rp->nr_domains; rd++) {
+		if (rd->id == RAPL_DOMAIN_PACKAGE) {
+			rd_package = rd;
+			continue;
+		}
+		pr_debug("remove package %d, %s domain\n", rp->id, rd->name);
+		powercap_unregister_zone(control_type, &rd->power_zone);
+	}
+	/* do parent zone last */
+	powercap_unregister_zone(control_type, &rd_package->power_zone);
+	list_del(&rp->plist);
+	kfree(rp);
+}
+
+/* called from CPU hotplug notifier, hotplug lock held */
+static int rapl_add_package(int cpu)
+{
+	int ret = 0;
+	int phy_package_id;
+	struct rapl_package *rp;
+
+	phy_package_id = topology_physical_package_id(cpu);
+	rp = kzalloc(sizeof(struct rapl_package), GFP_KERNEL);
+	if (!rp)
+		return -ENOMEM;
+
+	/* add the new package to the list */
+	rp->id = phy_package_id;
+	rp->nr_cpus = 1;
+	/* check if the package contains valid domains */
+	if (rapl_detect_domains(rp, cpu) ||
+		rapl_check_unit(rp, cpu)) {
+		ret = -ENODEV;
+		goto err_free_package;
+	}
+	if (!rapl_package_register_powercap(rp)) {
+		INIT_LIST_HEAD(&rp->plist);
+		list_add(&rp->plist, &rapl_packages);
+		return ret;
+	}
+
+err_free_package:
+	kfree(rp->domains);
+	kfree(rp);
+
+	return ret;
+}
+
+/* Handles CPU hotplug on multi-socket systems.
+ * If a CPU goes online as the first CPU of the physical package
+ * we add the RAPL package to the system. Similarly, when the last
+ * CPU of the package is removed, we remove the RAPL package and its
+ * associated domains. Cooling devices are handled accordingly at
+ * per-domain level.
+ */
+static int rapl_cpu_callback(struct notifier_block *nfb,
+				unsigned long action, void *hcpu)
+{
+	unsigned long cpu = (unsigned long)hcpu;
+	int phy_package_id;
+	struct rapl_package *rp;
+
+	phy_package_id = topology_physical_package_id(cpu);
+	switch (action) {
+	case CPU_ONLINE:
+	case CPU_ONLINE_FROZEN:
+	case CPU_DOWN_FAILED:
+	case CPU_DOWN_FAILED_FROZEN:
+		rp = find_package_by_id(phy_package_id);
+		if (rp)
+			++rp->nr_cpus;
+		else
+			rapl_add_package(cpu);
+		break;
+	case CPU_DOWN_PREPARE:
+	case CPU_DOWN_PREPARE_FROZEN:
+		rp = find_package_by_id(phy_package_id);
+		if (!rp)
+			break;
+		if (--rp->nr_cpus == 0)
+			rapl_remove_package(rp);
+	}
+
+	return NOTIFY_OK;
+}
+
+static struct notifier_block rapl_cpu_notifier = {
+	.notifier_call = rapl_cpu_callback,
+};
+
+static int __init rapl_init(void)
+{
+	int ret = 0;
+
+	if (!x86_match_cpu(rapl_ids)) {
+		pr_err("driver does not support CPU family %d model %d\n",
+			boot_cpu_data.x86, boot_cpu_data.x86_model);
+
+		return -ENODEV;
+	}
+	/* prevent CPU hotplug during detection */
+	get_online_cpus();
+	ret = rapl_detect_topology();
+	if (ret)
+		goto done;
+
+	if (rapl_register_powercap()) {
+		rapl_cleanup_data();
+		ret = -ENODEV;
+		goto done;
+	}
+	register_hotcpu_notifier(&rapl_cpu_notifier);
+done:
+	put_online_cpus();
+
+	return ret;
+}
+
+static void __exit rapl_exit(void)
+{
+	get_online_cpus();
+	unregister_hotcpu_notifier(&rapl_cpu_notifier);
+	rapl_unregister_powercap();
+	rapl_cleanup_data();
+	put_online_cpus();
+}
+
+module_init(rapl_init);
+module_exit(rapl_exit);
+
+MODULE_DESCRIPTION("Driver for Intel RAPL (Running Average Power Limit)");
+MODULE_AUTHOR("Jacob Pan <jacob.jun.pan@intel.com>");
+MODULE_LICENSE("GPL v2");
-- 
cgit 


From 70fea60d888d472ac044910fd0dc46b304419705 Mon Sep 17 00:00:00 2001
From: Benoit Goby <benoit@android.com>
Date: Thu, 17 Oct 2013 10:48:46 -0700
Subject: PM / Sleep: Detect device suspend/resume lockup and log event

Rather than hard-lock the kernel, dump the suspend/resume thread stack
and panic() to capture a message in pstore when a driver takes too long
to suspend/resume. Default suspend/resume watchdog timeout is set to 12
seconds to be longer than the usbhid 10 second timeout, but could be
changed at compile time.

Exclude from the watchdog the time spent waiting for children that
are resumed asynchronously and time every device, whether or not they
resumed synchronously.

This patch is targeted for mobile devices where a suspend/resume lockup
could cause a system reboot. Information about failing device can be
retrieved in subsequent boot session by mounting pstore and inspecting
the log. Laptops with EFI-enabled pstore could also benefit from
this feature.

The hardware watchdog timer is likely suspended during this time and
couldn't be relied upon. The soft-lockup detector would eventually tell
that tasks are not scheduled, but would provide little context as to why.
The patch hence uses system timer and assumes it is still active while the
devices are suspended/resumed.

This feature can be enabled/disabled during kernel configuration.

This change is based on earlier work by San Mehat.

Signed-off-by: Benoit Goby <benoit@android.com>
Signed-off-by: Zoran Markovic <zoran.markovic@linaro.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/base/power/main.c | 73 +++++++++++++++++++++++++++++++++++++++++++++++
 kernel/power/Kconfig      | 16 +++++++++++
 2 files changed, 89 insertions(+)

diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 9f098a82cf04..ee039afe9078 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -30,6 +30,8 @@
 #include <linux/suspend.h>
 #include <trace/events/power.h>
 #include <linux/cpuidle.h>
+#include <linux/timer.h>
+
 #include "../base.h"
 #include "power.h"
 
@@ -390,6 +392,71 @@ static int dpm_run_callback(pm_callback_t cb, struct device *dev,
 	return error;
 }
 
+#ifdef CONFIG_DPM_WATCHDOG
+struct dpm_watchdog {
+	struct device		*dev;
+	struct task_struct	*tsk;
+	struct timer_list	timer;
+};
+
+#define DECLARE_DPM_WATCHDOG_ON_STACK(wd) \
+	struct dpm_watchdog wd
+
+/**
+ * dpm_watchdog_handler - Driver suspend / resume watchdog handler.
+ * @data: Watchdog object address.
+ *
+ * Called when a driver has timed out suspending or resuming.
+ * There's not much we can do here to recover so panic() to
+ * capture a crash-dump in pstore.
+ */
+static void dpm_watchdog_handler(unsigned long data)
+{
+	struct dpm_watchdog *wd = (void *)data;
+
+	dev_emerg(wd->dev, "**** DPM device timeout ****\n");
+	show_stack(wd->tsk, NULL);
+	panic("%s %s: unrecoverable failure\n",
+		dev_driver_string(wd->dev), dev_name(wd->dev));
+}
+
+/**
+ * dpm_watchdog_set - Enable pm watchdog for given device.
+ * @wd: Watchdog. Must be allocated on the stack.
+ * @dev: Device to handle.
+ */
+static void dpm_watchdog_set(struct dpm_watchdog *wd, struct device *dev)
+{
+	struct timer_list *timer = &wd->timer;
+
+	wd->dev = dev;
+	wd->tsk = current;
+
+	init_timer_on_stack(timer);
+	/* use same timeout value for both suspend and resume */
+	timer->expires = jiffies + HZ * CONFIG_DPM_WATCHDOG_TIMEOUT;
+	timer->function = dpm_watchdog_handler;
+	timer->data = (unsigned long)wd;
+	add_timer(timer);
+}
+
+/**
+ * dpm_watchdog_clear - Disable suspend/resume watchdog.
+ * @wd: Watchdog to disable.
+ */
+static void dpm_watchdog_clear(struct dpm_watchdog *wd)
+{
+	struct timer_list *timer = &wd->timer;
+
+	del_timer_sync(timer);
+	destroy_timer_on_stack(timer);
+}
+#else
+#define DECLARE_DPM_WATCHDOG_ON_STACK(wd)
+#define dpm_watchdog_set(x, y)
+#define dpm_watchdog_clear(x)
+#endif
+
 /*------------------------- Resume routines -------------------------*/
 
 /**
@@ -576,6 +643,7 @@ static int device_resume(struct device *dev, pm_message_t state, bool async)
 	pm_callback_t callback = NULL;
 	char *info = NULL;
 	int error = 0;
+	DECLARE_DPM_WATCHDOG_ON_STACK(wd);
 
 	TRACE_DEVICE(dev);
 	TRACE_RESUME(0);
@@ -584,6 +652,7 @@ static int device_resume(struct device *dev, pm_message_t state, bool async)
 		goto Complete;
 
 	dpm_wait(dev->parent, async);
+	dpm_watchdog_set(&wd, dev);
 	device_lock(dev);
 
 	/*
@@ -642,6 +711,7 @@ static int device_resume(struct device *dev, pm_message_t state, bool async)
 
  Unlock:
 	device_unlock(dev);
+	dpm_watchdog_clear(&wd);
 
  Complete:
 	complete_all(&dev->power.completion);
@@ -1060,6 +1130,7 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
 	pm_callback_t callback = NULL;
 	char *info = NULL;
 	int error = 0;
+	DECLARE_DPM_WATCHDOG_ON_STACK(wd);
 
 	dpm_wait_for_children(dev, async);
 
@@ -1083,6 +1154,7 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
 	if (dev->power.syscore)
 		goto Complete;
 
+	dpm_watchdog_set(&wd, dev);
 	device_lock(dev);
 
 	if (dev->pm_domain) {
@@ -1139,6 +1211,7 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async)
 	}
 
 	device_unlock(dev);
+	dpm_watchdog_clear(&wd);
 
  Complete:
 	complete_all(&dev->power.completion);
diff --git a/kernel/power/Kconfig b/kernel/power/Kconfig
index d444c4e834f4..2fac9cc79b3d 100644
--- a/kernel/power/Kconfig
+++ b/kernel/power/Kconfig
@@ -178,6 +178,22 @@ config PM_SLEEP_DEBUG
 	def_bool y
 	depends on PM_DEBUG && PM_SLEEP
 
+config DPM_WATCHDOG
+	bool "Device suspend/resume watchdog"
+	depends on PM_DEBUG && PSTORE
+	---help---
+	  Sets up a watchdog timer to capture drivers that are
+	  locked up attempting to suspend/resume a device.
+	  A detected lockup causes system panic with message
+	  captured in pstore device for inspection in subsequent
+	  boot session.
+
+config DPM_WATCHDOG_TIMEOUT
+	int "Watchdog timeout in seconds"
+	range 1 120
+	default 12
+	depends on DPM_WATCHDOG
+
 config PM_TRACE
 	bool
 	help
-- 
cgit 


From 06ae3314e0f67a222944155904a792399038f8be Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 18 Oct 2013 03:43:00 -0700
Subject: Bluetooth: Use hcon directly instead of conn->hcon where possible

When the HCI connection hcon is already dereferenced, then use hcon
directly instead of conn->hcon.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/l2cap_core.c | 7 +++----
 net/bluetooth/smp.c        | 2 +-
 2 files changed, 4 insertions(+), 5 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 763b7417dab7..97572970fba2 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -6399,8 +6399,7 @@ static void l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm,
 	if (hcon->type != ACL_LINK)
 		goto drop;
 
-	chan = l2cap_global_chan_by_psm(0, psm, &conn->hcon->src,
-					&conn->hcon->dst);
+	chan = l2cap_global_chan_by_psm(0, psm, &hcon->src, &hcon->dst);
 	if (!chan)
 		goto drop;
 
@@ -6413,7 +6412,7 @@ static void l2cap_conless_channel(struct l2cap_conn *conn, __le16 psm,
 		goto drop;
 
 	/* Store remote BD_ADDR and PSM for msg_name */
-	bacpy(&bt_cb(skb)->bdaddr, &conn->hcon->dst);
+	bacpy(&bt_cb(skb)->bdaddr, &hcon->dst);
 	bt_cb(skb)->psm = psm;
 
 	if (!chan->ops->recv(chan, skb))
@@ -6433,7 +6432,7 @@ static void l2cap_att_channel(struct l2cap_conn *conn,
 		goto drop;
 
 	chan = l2cap_global_chan_by_scid(BT_CONNECTED, L2CAP_CID_ATT,
-					 &conn->hcon->src, &conn->hcon->dst);
+					 &hcon->src, &hcon->dst);
 	if (!chan)
 		goto drop;
 
diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index fc200e06aa04..85a2796cac61 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -864,7 +864,7 @@ int smp_sig_channel(struct l2cap_conn *conn, struct sk_buff *skb)
 		return -EILSEQ;
 	}
 
-	if (!test_bit(HCI_LE_ENABLED, &conn->hcon->hdev->dev_flags)) {
+	if (!test_bit(HCI_LE_ENABLED, &hcon->hdev->dev_flags)) {
 		err = -ENOTSUPP;
 		reason = SMP_PAIRING_NOTSUPP;
 		goto done;
-- 
cgit 


From 5e2be4e0edff4a1021b6743ca6859129cd8e7067 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 18 Oct 2013 12:01:43 +0300
Subject: ACPI / osl: remove an unneeded NULL check

"str" is never NULL here so I have removed the check.  There are static
checkers which complain about superfluous NULL checks because it may
indicate confusion or a bug.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/osl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index b1629b571cb2..4923dd4232b3 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -1335,7 +1335,7 @@ static int __init acpi_os_name_setup(char *str)
 	if (!str || !*str)
 		return 0;
 
-	for (; count-- && str && *str; str++) {
+	for (; count-- && *str; str++) {
 		if (isalnum(*str) || *str == ' ' || *str == ':')
 			*p++ = *str;
 		else if (*str == '\'' || *str == '"')
-- 
cgit 


From cc8dba2bc302442f96d15c027fceb7b103b20ae3 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 18 Oct 2013 03:43:01 -0700
Subject: Bluetooth: Block ATT connection on LE when device is blocked

When the remote LE device is blocked, then do not create a L2CAP
channel for it. Without a channel, all packets for that connection
will be dropped.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/l2cap_core.c | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 97572970fba2..d52bd0d32621 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1382,14 +1382,16 @@ static struct l2cap_chan *l2cap_global_chan_by_scid(int state, u16 cid,
 
 static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 {
+	struct hci_conn *hcon = conn->hcon;
 	struct sock *parent;
 	struct l2cap_chan *chan, *pchan;
+	u8 dst_type;
 
 	BT_DBG("");
 
 	/* Check if we have socket listening on cid */
 	pchan = l2cap_global_chan_by_scid(BT_LISTEN, L2CAP_CID_ATT,
-					  &conn->hcon->src, &conn->hcon->dst);
+					  &hcon->src, &hcon->dst);
 	if (!pchan)
 		return;
 
@@ -1397,6 +1399,12 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 	if (__l2cap_get_chan_by_dcid(conn, L2CAP_CID_ATT))
 		return;
 
+	dst_type = bdaddr_type(hcon, hcon->dst_type);
+
+	/* If device is blocked, do not create a channel for it */
+	if (hci_blacklist_lookup(hcon->hdev, &hcon->dst, dst_type))
+		return;
+
 	parent = pchan->sk;
 
 	lock_sock(parent);
@@ -1407,10 +1415,10 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 
 	chan->dcid = L2CAP_CID_ATT;
 
-	bacpy(&chan->src, &conn->hcon->src);
-	bacpy(&chan->dst, &conn->hcon->dst);
-	chan->src_type = bdaddr_type(conn->hcon, conn->hcon->src_type);
-	chan->dst_type = bdaddr_type(conn->hcon, conn->hcon->dst_type);
+	bacpy(&chan->src, &hcon->src);
+	bacpy(&chan->dst, &hcon->dst);
+	chan->src_type = bdaddr_type(hcon, hcon->src_type);
+	chan->dst_type = dst_type;
 
 	__l2cap_chan_add(conn, chan);
 
@@ -6438,6 +6446,9 @@ static void l2cap_att_channel(struct l2cap_conn *conn,
 
 	BT_DBG("chan %p, len %d", chan, skb->len);
 
+	if (hci_blacklist_lookup(hcon->hdev, &hcon->dst, hcon->dst_type))
+		goto drop;
+
 	if (chan->imtu < skb->len)
 		goto drop;
 
-- 
cgit 


From f788e7bf0563bb98b1a6ef5cdc66749ee36934e4 Mon Sep 17 00:00:00 2001
From: Xie XiuQi <xiexiuqi@huawei.com>
Date: Fri, 18 Oct 2013 09:12:04 +0800
Subject: irq: Fix some trivial typos in comments

Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
[jkosina@suse.cz: fix 'explicitly', noticed by Randy Dunlap]
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 kernel/irq/chip.c   | 2 +-
 kernel/irq/manage.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/irq/chip.c b/kernel/irq/chip.c
index a3bb14fbe5c6..dc04c166c54d 100644
--- a/kernel/irq/chip.c
+++ b/kernel/irq/chip.c
@@ -214,7 +214,7 @@ void irq_enable(struct irq_desc *desc)
 }
 
 /**
- * irq_disable - Mark interupt disabled
+ * irq_disable - Mark interrupt disabled
  * @desc:	irq descriptor which should be disabled
  *
  * If the chip does not implement the irq_disable callback, we
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 514bcfd855a8..2165253220ee 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -786,7 +786,7 @@ irq_forced_thread_fn(struct irq_desc *desc, struct irqaction *action)
 }
 
 /*
- * Interrupts explicitely requested as threaded interupts want to be
+ * Interrupts explicitly requested as threaded interrupts want to be
  * preemtible - many of them need to sleep and wait for slow busses to
  * complete.
  */
-- 
cgit 


From d17561743642082bd32bdfc5a14e17515c0d6baa Mon Sep 17 00:00:00 2001
From: Xie XiuQi <xiexiuqi@huawei.com>
Date: Fri, 18 Oct 2013 09:12:43 +0800
Subject: mm: Fix some trivial typos in comments

Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 mm/slub.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/slub.c b/mm/slub.c
index e3ba1f2cf60c..6a2fa986e7a7 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -949,7 +949,7 @@ static inline void slab_free_hook(struct kmem_cache *s, void *x)
 	kmemleak_free_recursive(x, s->flags);
 
 	/*
-	 * Trouble is that we may no longer disable interupts in the fast path
+	 * Trouble is that we may no longer disable interrupts in the fast path
 	 * So in order to make the debug calls that expect irqs to be
 	 * disabled we need to disable interrupts temporarily.
 	 */
-- 
cgit 


From 1e4cfed127986c32c910d5b3549c6eccf847fdf2 Mon Sep 17 00:00:00 2001
From: Xie XiuQi <xiexiuqi@huawei.com>
Date: Fri, 18 Oct 2013 09:13:30 +0800
Subject: timekeeping: Fix some trivial typos in comments

Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 kernel/time/timekeeping.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 48b9fffabdc2..5bb5056fbfb4 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -1613,9 +1613,10 @@ void get_xtime_and_monotonic_and_sleep_offset(struct timespec *xtim,
  * ktime_get_update_offsets - hrtimer helper
  * @offs_real:	pointer to storage for monotonic -> realtime offset
  * @offs_boot:	pointer to storage for monotonic -> boottime offset
+ * @offs_tai:	pointer to storage for monotonic -> clock tai offset
  *
  * Returns current monotonic time and updates the offsets
- * Called from hrtimer_interupt() or retrigger_next_event()
+ * Called from hrtimer_interrupt() or retrigger_next_event()
  */
 ktime_t ktime_get_update_offsets(ktime_t *offs_real, ktime_t *offs_boot,
 							ktime_t *offs_tai)
-- 
cgit 


From 72b3e249ce5fb298e69bec698f9fdae7cc3f4ceb Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 18 Oct 2013 10:39:58 +0200
Subject: ARM: ux500: fix I2C4 clock bit

The PCLK for I2C4 is controlled by bit 10 in the PCKEN registers
while the KCLK is controlled by bit 9 on the KCKEN, it's
one of these odd assymetric things. Correct the PCLK bit to 10.

Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 5112f4cd8bce..0fc634b1b50e 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -694,7 +694,7 @@
 
 			clock-frequency = <400000>;
 
-			clocks = <&prcc_kclk 1 9>, <&prcc_pclk 1 9>;
+			clocks = <&prcc_kclk 1 9>, <&prcc_pclk 1 10>;
 			clock-names = "i2cclk", "apb_pclk";
 		};
 
-- 
cgit 


From 6e1484c2761e56bb98ec95ccdd1d98d2f67852ae Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 18 Oct 2013 10:25:52 +0200
Subject: ARM: ux500: register all SSP and SPI blocks

This adds the SSP and SPI blocks to the device tree and makes
them active. Only this way can their clocks be properly gated
off at boot.

Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/ste-dbx5x0.dtsi | 75 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 74 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/ste-dbx5x0.dtsi b/arch/arm/boot/dts/ste-dbx5x0.dtsi
index 0fc634b1b50e..7da99fe497e1 100644
--- a/arch/arm/boot/dts/ste-dbx5x0.dtsi
+++ b/arch/arm/boot/dts/ste-dbx5x0.dtsi
@@ -704,7 +704,80 @@
 			interrupts = <0 14 IRQ_TYPE_LEVEL_HIGH>;
 			#address-cells = <1>;
 			#size-cells = <0>;
-			status = "disabled";
+			clocks = <&prcc_kclk 3 1>, <&prcc_pclk 3 1>;
+			clock-names = "ssp0clk", "apb_pclk";
+			dmas = <&dma 8 0 0x2>, /* Logical - DevToMem */
+			       <&dma 8 0 0x0>; /* Logical - MemToDev */
+			dma-names = "rx", "tx";
+		};
+
+		ssp@80003000 {
+			compatible = "arm,pl022", "arm,primecell";
+			reg = <0x80003000 0x1000>;
+			interrupts = <0 52 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			clocks = <&prcc_kclk 3 2>, <&prcc_pclk 3 2>;
+			clock-names = "ssp1clk", "apb_pclk";
+			dmas = <&dma 9 0 0x2>, /* Logical - DevToMem */
+			       <&dma 9 0 0x0>; /* Logical - MemToDev */
+			dma-names = "rx", "tx";
+		};
+
+		spi@8011a000 {
+			compatible = "arm,pl022", "arm,primecell";
+			reg = <0x8011a000 0x1000>;
+			interrupts = <0 8 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			/* Same clock wired to kernel and pclk */
+			clocks = <&prcc_pclk 2 8>, <&prcc_pclk 2 8>;
+			clock-names = "spi0clk", "apb_pclk";
+			dmas = <&dma 0 0 0x2>, /* Logical - DevToMem */
+			       <&dma 0 0 0x0>; /* Logical - MemToDev */
+			dma-names = "rx", "tx";
+		};
+
+		spi@80112000 {
+			compatible = "arm,pl022", "arm,primecell";
+			reg = <0x80112000 0x1000>;
+			interrupts = <0 96 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			/* Same clock wired to kernel and pclk */
+			clocks = <&prcc_pclk 2 2>, <&prcc_pclk 2 2>;
+			clock-names = "spi1clk", "apb_pclk";
+			dmas = <&dma 35 0 0x2>, /* Logical - DevToMem */
+			       <&dma 35 0 0x0>; /* Logical - MemToDev */
+			dma-names = "rx", "tx";
+		};
+
+		spi@80111000 {
+			compatible = "arm,pl022", "arm,primecell";
+			reg = <0x80111000 0x1000>;
+			interrupts = <0 6 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			/* Same clock wired to kernel and pclk */
+			clocks = <&prcc_pclk 2 1>, <&prcc_pclk 2 1>;
+			clock-names = "spi2clk", "apb_pclk";
+			dmas = <&dma 33 0 0x2>, /* Logical - DevToMem */
+			       <&dma 33 0 0x0>; /* Logical - MemToDev */
+			dma-names = "rx", "tx";
+		};
+
+		spi@80129000 {
+			compatible = "arm,pl022", "arm,primecell";
+			reg = <0x80129000 0x1000>;
+			interrupts = <0 49 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			/* Same clock wired to kernel and pclk */
+			clocks = <&prcc_pclk 1 7>, <&prcc_pclk 1 7>;
+			clock-names = "spi3clk", "apb_pclk";
+			dmas = <&dma 40 0 0x2>, /* Logical - DevToMem */
+			       <&dma 40 0 0x0>; /* Logical - MemToDev */
+			dma-names = "rx", "tx";
 		};
 
 		uart@80120000 {
-- 
cgit 


From 40d54ec2f77edc52340dcae236aaabe8c3cc3a07 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 18 Oct 2013 15:28:58 +0300
Subject: perf evsel: Add missing 'mmap2' from debug print

The struct perf_event_attr now has a 'mmap2' member.  Add it to
perf_event_attr__fprintf().

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1382099356-4918-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evsel.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index bfebc1ea3c51..291b18ac236a 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -986,6 +986,7 @@ static size_t perf_event_attr__fprintf(struct perf_event_attr *attr, FILE *fp)
 	ret += PRINT_ATTR2(exclude_host, exclude_guest);
 	ret += PRINT_ATTR2N("excl.callchain_kern", exclude_callchain_kernel,
 			    "excl.callchain_user", exclude_callchain_user);
+	ret += PRINT_ATTR_U32(mmap2);
 
 	ret += PRINT_ATTR_U32(wakeup_events);
 	ret += PRINT_ATTR_U32(wakeup_watermark);
-- 
cgit 


From 8a87bdddf9335297a88c1d57db51912be8d7f74e Mon Sep 17 00:00:00 2001
From: Idan Kahlon <idanx.kahlon@intel.com>
Date: Wed, 9 Oct 2013 16:09:13 +0200
Subject: iwlwifi: mvm: NVM - increase max section size

Section size limitation to 6000 is incorrect.
NVM file need to support bigger sections in order
to support PAPD tables.

Signed-off-by: Idan Kahlon <idanx.kahlon@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Maor Perez <maorx.perez@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/nvm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/nvm.c b/drivers/net/wireless/iwlwifi/mvm/nvm.c
index e4edda6e5306..2beffd028b67 100644
--- a/drivers/net/wireless/iwlwifi/mvm/nvm.c
+++ b/drivers/net/wireless/iwlwifi/mvm/nvm.c
@@ -77,7 +77,7 @@ static const int nvm_to_read[] = {
 
 /* Default NVM size to read */
 #define IWL_NVM_DEFAULT_CHUNK_SIZE (2*1024)
-#define IWL_MAX_NVM_SECTION_SIZE 6000
+#define IWL_MAX_NVM_SECTION_SIZE 7000
 
 #define NVM_WRITE_OPCODE 1
 #define NVM_READ_OPCODE 0
-- 
cgit 


From 7352cac0a33dc622d03797604531cc5475b9506c Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Mon, 14 Oct 2013 18:52:23 +0300
Subject: iwlwifi: mvm: BT Coex - always set mandatory fields

The firmware always expects the Coex Mode to be set.
Moreover, the firmware expects bit 0 is the valid bits to
be set all the times.
I misunderstood the API and didn't set these bits when
commands are sent to update the paramters of the Coex. As
a result, the firmware understood that the BT Coex was
disabled (Coex mode = 0) and ignored all the updates (valid
bit 0 clear).

Fix that.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/bt-coex.c        | 10 +++++++---
 drivers/net/wireless/iwlwifi/mvm/fw-api-bt-coex.h |  4 ++++
 2 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index cfff8edefcff..cf29d74370e9 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -471,11 +471,13 @@ static int iwl_mvm_bt_udpate_ctrl_kill_msk(struct iwl_mvm *mvm,
 	if (!bt_cmd)
 		return -ENOMEM;
 	cmd.data[0] = bt_cmd;
+	bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
 
 	bt_cmd->kill_ack_msk = cpu_to_le32(iwl_bt_ack_kill_msk[bt_kill_msk]);
 	bt_cmd->kill_cts_msk = cpu_to_le32(iwl_bt_cts_kill_msk[bt_kill_msk]);
-	bt_cmd->valid_bit_msk =
-		cpu_to_le32(BT_VALID_KILL_ACK | BT_VALID_KILL_CTS);
+	bt_cmd->valid_bit_msk |= cpu_to_le32(BT_VALID_ENABLE |
+					     BT_VALID_KILL_ACK |
+					     BT_VALID_KILL_CTS);
 
 	IWL_DEBUG_COEX(mvm, "ACK Kill msk = 0x%08x, CTS Kill msk = 0x%08x\n",
 		       iwl_bt_ack_kill_msk[bt_kill_msk],
@@ -519,8 +521,10 @@ static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
 	if (!bt_cmd)
 		return -ENOMEM;
 	cmd.data[0] = bt_cmd;
+	bt_cmd->flags = cpu_to_le32(BT_COEX_NW);
 
-	bt_cmd->valid_bit_msk = cpu_to_le32(BT_VALID_REDUCED_TX_POWER),
+	bt_cmd->valid_bit_msk =
+		cpu_to_le32(BT_VALID_ENABLE | BT_VALID_REDUCED_TX_POWER);
 	bt_cmd->bt_reduced_tx_power = sta_id;
 
 	if (enable)
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw-api-bt-coex.h b/drivers/net/wireless/iwlwifi/mvm/fw-api-bt-coex.h
index acb32f4b3dd4..4ea5e24ca92d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw-api-bt-coex.h
+++ b/drivers/net/wireless/iwlwifi/mvm/fw-api-bt-coex.h
@@ -82,6 +82,8 @@
  * @BT_USE_DEFAULTS:
  * @BT_SYNC_2_BT_DISABLE:
  * @BT_COEX_CORUNNING_TBL_EN:
+ *
+ * The COEX_MODE must be set for each command. Even if it is not changed.
  */
 enum iwl_bt_coex_flags {
 	BT_CH_PRIMARY_EN		= BIT(0),
@@ -103,6 +105,8 @@ enum iwl_bt_coex_flags {
 
 /*
  * indicates what has changed in the BT_COEX command.
+ * BT_VALID_ENABLE must be set for each command. Commands without this bit will
+ * discarded by the firmware
  */
 enum iwl_bt_coex_valid_bit_msk {
 	BT_VALID_ENABLE			= BIT(0),
-- 
cgit 


From 0af8835e3b37f69085b786be4c6ff79ea6965596 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 15 Oct 2013 12:37:38 +0300
Subject: iwlwifi: mvm: BT Coex - enable Tx power based on BT status

The activity grading indication from the firmware should
not be used in this case, but the bt_status in the firwmare
notification.
Fix that.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/bt-coex.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index cf29d74370e9..5b630f12bbff 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -648,7 +648,7 @@ static void iwl_mvm_bt_notif_iterator(void *_data, u8 *mac,
 	}
 
 	/* reduced Txpower only if BT is on, so ...*/
-	if (le32_to_cpu(data->notif->bt_activity_grading) == BT_OFF) {
+	if (!data->notif->bt_status) {
 		/* ... cancel reduced Tx power ... */
 		if (iwl_mvm_bt_coex_reduced_txp(mvm, mvmvif->ap_sta_id, false))
 			IWL_ERR(mvm, "Couldn't send BT_CONFIG cmd\n");
@@ -868,7 +868,7 @@ void iwl_mvm_bt_rssi_event(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
 		return;
 
 	/* No BT - reports should be disabled */
-	if (le32_to_cpu(mvm->last_bt_notif.bt_activity_grading) == BT_OFF)
+	if (!mvm->last_bt_notif.bt_status)
 		return;
 
 	IWL_DEBUG_COEX(mvm, "RSSI for %pM is now %s\n", vif->bss_conf.bssid,
-- 
cgit 


From 3f617281a64b8a9c1c9f9fb76ea6bc642e1a1b01 Mon Sep 17 00:00:00 2001
From: Luciano Coelho <luciano.coelho@intel.com>
Date: Mon, 14 Oct 2013 13:18:41 +0300
Subject: iwlwifi: mvm: fix fw_rx_stats debugfs entry

The fw_rx_stats entry in debugfs was getting truncated because the
internal buffer used to hold the string was too short.  The
calculation of the needed buffer size was rather bogus.

Simplify the calculation by multiplying the number of entries in the
entire structure by the size of each data line and adding the size of
the header lines.

Additionally, add the mac_id value, which was missing.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/debugfs.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index a5813437d262..0675f0c8ef93 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -654,9 +654,11 @@ static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
 	int pos = 0;
 	char *buf;
 	int ret;
-	int bufsz = sizeof(struct mvm_statistics_rx_phy) * 20 +
-		    sizeof(struct mvm_statistics_rx_non_phy) * 10 +
-		    sizeof(struct mvm_statistics_rx_ht_phy) * 10 + 200;
+	/* 43 is the size of each data line, 33 is the size of each header */
+	size_t bufsz =
+		((sizeof(struct mvm_statistics_rx) / sizeof(__le32)) * 43) +
+		(4 * 33) + 1;
+
 	struct mvm_statistics_rx_phy *ofdm;
 	struct mvm_statistics_rx_phy *cck;
 	struct mvm_statistics_rx_non_phy *general;
@@ -751,6 +753,7 @@ static ssize_t iwl_dbgfs_fw_rx_stats_read(struct file *file,
 	PRINT_STATS_LE32("beacon_energy_b", general->beacon_energy_b);
 	PRINT_STATS_LE32("beacon_energy_c", general->beacon_energy_c);
 	PRINT_STATS_LE32("num_bt_kills", general->num_bt_kills);
+	PRINT_STATS_LE32("mac_id", general->mac_id);
 	PRINT_STATS_LE32("directed_data_mpdu", general->directed_data_mpdu);
 
 	pos += scnprintf(buf + pos, bufsz - pos, fmt_header,
-- 
cgit 


From 246dd9922e859768aa522daa6c1c601785e57e0c Mon Sep 17 00:00:00 2001
From: David Spinadel <david.spinadel@intel.com>
Date: Thu, 17 Oct 2013 09:49:12 +0300
Subject: iwlwifi: mvm: fix operator precedence

Integers need to be multiplied before division.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/quota.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/quota.c b/drivers/net/wireless/iwlwifi/mvm/quota.c
index 3fc986eb0d6c..17e2bc827f9a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/quota.c
+++ b/drivers/net/wireless/iwlwifi/mvm/quota.c
@@ -151,7 +151,8 @@ static void iwl_mvm_adjust_quota_for_noa(struct iwl_mvm *mvm,
 		if (id != phy_id)
 			continue;
 
-		quota *= (beacon_int - mvm->noa_duration) / beacon_int;
+		quota *= (beacon_int - mvm->noa_duration);
+		quota /= beacon_int;
 
 		cmd->quotas[i].quota = cpu_to_le32(quota);
 	}
-- 
cgit 


From f6b129527ca15bae29ffb9417ddaa1c9d99ffc5d Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 15 Oct 2013 22:04:54 +0300
Subject: iwlwifi: dvm: don't override mac80211's queue setting

Since we set IEEE80211_HW_QUEUE_CONTROL, we can let
mac80211 do the queue assignement and don't need to
override its decisions.
While reassiging the same values is harmless of course,
it triggered  a WARNING when iwlwifi and mac80211 came
to different conclusions. This happened when mac80211 set
IEEE80211_TX_CTL_SEND_AFTER_DTIM, but didn't route the
packet to the cab_queue because no stations were asleep.

iwlwifi should not override mac80211's decicions for
offchannel packets and packets to  be sent after DTIM,
but it should override mac80211's decision for AMPDUs
since we have a special queue for them. So for AMPDU,
we still override info->hw_queue by the AMPDU queue.

This avoids:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 2531 at drivers/net/wireless/iwlwifi/dvm/tx.c:456 iwlagn_tx_skb+0x6c5/0x883()
Modules linked in:
CPU: 0 PID: 2531 Comm: hostapd Not tainted 3.12.0-rc5+ #1
Hardware name:                  /D53427RKE, BIOS RKPPT10H.86A.0017.2013.0425.1251 04/25/2013
 0000000000000000 0000000000000009 ffffffff8189aa62 0000000000000000
 ffffffff8105a4f2 ffff880058339a48 ffffffff815f8a04 0000000000000000
 ffff8800560097b0 0000000000000208 0000000000000000 ffff8800561a9e5e
Call Trace:
 [<ffffffff8189aa62>] ? dump_stack+0x41/0x51
 [<ffffffff8105a4f2>] ? warn_slowpath_common+0x78/0x90
 [<ffffffff815f8a04>] ? iwlagn_tx_skb+0x6c5/0x883
 [<ffffffff815f8a04>] ? iwlagn_tx_skb+0x6c5/0x883
 [<ffffffff818a0040>] ? put_cred+0x15/0x15
 [<ffffffff815f6db4>] ? iwlagn_mac_tx+0x19/0x2f
 [<ffffffff8186cc45>] ? __ieee80211_tx+0x226/0x29b
 [<ffffffff8186e6bd>] ? ieee80211_tx+0xa6/0xb5
 [<ffffffff8186e98b>] ? ieee80211_monitor_start_xmit+0x1e9/0x204
 [<ffffffff8171ce5f>] ? dev_hard_start_xmit+0x271/0x3ec
 [<ffffffff817351ac>] ? sch_direct_xmit+0x66/0x164
 [<ffffffff8171d1bf>] ? dev_queue_xmit+0x1e5/0x3c8
 [<ffffffff817fac5a>] ? packet_sendmsg+0xac5/0xb3d
 [<ffffffff81709a09>] ? sock_sendmsg+0x37/0x52
 [<ffffffff810f9e0c>] ? __do_fault+0x338/0x36b
 [<ffffffff81713820>] ? verify_iovec+0x44/0x94
 [<ffffffff81709e63>] ? ___sys_sendmsg+0x1f1/0x283
 [<ffffffff81140a73>] ? __inode_wait_for_writeback+0x67/0xae
 [<ffffffff8111735e>] ? __cache_free.isra.46+0x178/0x187
 [<ffffffff811173b1>] ? kmem_cache_free+0x44/0x84
 [<ffffffff81132c22>] ? dentry_kill+0x13d/0x149
 [<ffffffff81132f6f>] ? dput+0xe5/0xef
 [<ffffffff81136e04>] ? fget_light+0x2e/0x7c
 [<ffffffff8170ae62>] ? __sys_sendmsg+0x39/0x57
 [<ffffffff818a7e39>] ? system_call_fastpath+0x16/0x1b
---[ end trace 1b3eb79359c1d1e6 ]---

Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/iwlwifi/dvm/tx.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/dvm/tx.c b/drivers/net/wireless/iwlwifi/dvm/tx.c
index da442b81370a..1fef5240e6ad 100644
--- a/drivers/net/wireless/iwlwifi/dvm/tx.c
+++ b/drivers/net/wireless/iwlwifi/dvm/tx.c
@@ -433,27 +433,19 @@ int iwlagn_tx_skb(struct iwl_priv *priv,
 	/* Copy MAC header from skb into command buffer */
 	memcpy(tx_cmd->hdr, hdr, hdr_len);
 
+	txq_id = info->hw_queue;
+
 	if (is_agg)
 		txq_id = priv->tid_data[sta_id][tid].agg.txq_id;
 	else if (info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM) {
-		/*
-		 * Send this frame after DTIM -- there's a special queue
-		 * reserved for this for contexts that support AP mode.
-		 */
-		txq_id = ctx->mcast_queue;
-
 		/*
 		 * The microcode will clear the more data
 		 * bit in the last frame it transmits.
 		 */
 		hdr->frame_control |=
 			cpu_to_le16(IEEE80211_FCTL_MOREDATA);
-	} else if (info->flags & IEEE80211_TX_CTL_TX_OFFCHAN)
-		txq_id = IWL_AUX_QUEUE;
-	else
-		txq_id = ctx->ac_to_queue[skb_get_queue_mapping(skb)];
+	}
 
-	WARN_ON_ONCE(!is_agg && txq_id != info->hw_queue);
 	WARN_ON_ONCE(is_agg &&
 		     priv->queue_to_mac80211[txq_id] != info->hw_queue);
 
-- 
cgit 


From e483341ce82750a1b526b65b7178213dcf967a7a Mon Sep 17 00:00:00 2001
From: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Date: Fri, 18 Oct 2013 16:23:23 +0200
Subject: ARM: at91: remove pinctrl conflict between mmc and SPI for
 at91sam9g20ek

These MMC and SPI buses can't be configured at the same time because they
share the same traces on the EK board.

Reported-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
 arch/arm/boot/dts/at91sam9g20ek_common.dtsi | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
index 137354689ad0..cb2c010e08e2 100644
--- a/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
+++ b/arch/arm/boot/dts/at91sam9g20ek_common.dtsi
@@ -96,7 +96,6 @@
 			};
 
 			spi0: spi@fffc8000 {
-				status = "okay";
 				cs-gpios = <0>, <&pioC 11 0>, <0>, <0>;
 				mtd_dataflash@0 {
 					compatible = "atmel,at45", "atmel,dataflash";
-- 
cgit 


From 5f7adc9762a33c4aa534f575532f55804ff50609 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Fri, 18 Oct 2013 23:27:37 +0800
Subject: ARM: imx: imx6sl iomuxc syscon is compatible to imx6q

The imx6sl iomuxc syscon is compatible to imx6q, so let's add
compatible string 'fsl,imx6q-iomuxc-gpr' for imx6sl iomuxc syscon node.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6sl.dtsi | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
index 0a2d614bc206..6eabfa12e8c5 100644
--- a/arch/arm/boot/dts/imx6sl.dtsi
+++ b/arch/arm/boot/dts/imx6sl.dtsi
@@ -533,7 +533,8 @@
 			};
 
 			gpr: iomuxc-gpr@020e0000 {
-				compatible = "fsl,imx6sl-iomuxc-gpr", "syscon";
+				compatible = "fsl,imx6sl-iomuxc-gpr",
+					     "fsl,imx6q-iomuxc-gpr", "syscon";
 				reg = <0x020e0000 0x38>;
 			};
 
-- 
cgit 


From f3643ac7ffd8bf9a3b0bac8e207529d01bebf269 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Wed, 4 Sep 2013 16:24:09 -0700
Subject: hwmon: (tmp401) Convert to use devm_hwmon_device_register_with_groups

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/tmp401.c | 92 +++++++++++++++-----------------------------------
 1 file changed, 28 insertions(+), 64 deletions(-)

diff --git a/drivers/hwmon/tmp401.c b/drivers/hwmon/tmp401.c
index dfe6d9527efb..7fa6e7d0b9b6 100644
--- a/drivers/hwmon/tmp401.c
+++ b/drivers/hwmon/tmp401.c
@@ -155,7 +155,8 @@ MODULE_DEVICE_TABLE(i2c, tmp401_id);
  */
 
 struct tmp401_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
+	const struct attribute_group *groups[3];
 	struct mutex update_lock;
 	char valid; /* zero until following fields are valid */
 	unsigned long last_updated; /* in jiffies */
@@ -231,8 +232,8 @@ static int tmp401_update_device_reg16(struct i2c_client *client,
 
 static struct tmp401_data *tmp401_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct tmp401_data *data = i2c_get_clientdata(client);
+	struct tmp401_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	struct tmp401_data *ret = data;
 	int i, val;
 	unsigned long next_update;
@@ -350,15 +351,12 @@ static ssize_t store_temp(struct device *dev, struct device_attribute *devattr,
 {
 	int nr = to_sensor_dev_attr_2(devattr)->nr;
 	int index = to_sensor_dev_attr_2(devattr)->index;
-	struct i2c_client *client = to_i2c_client(dev);
-	struct tmp401_data *data = tmp401_update_device(dev);
+	struct tmp401_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 	u16 reg;
 	u8 regaddr;
 
-	if (IS_ERR(data))
-		return PTR_ERR(data);
-
 	if (kstrtol(buf, 10, &val))
 		return -EINVAL;
 
@@ -405,7 +403,7 @@ static ssize_t store_temp_crit_hyst(struct device *dev, struct device_attribute
 	val = clamp_val(val, temp - 255000, temp);
 	reg = ((temp - val) + 500) / 1000;
 
-	i2c_smbus_write_byte_data(to_i2c_client(dev), TMP401_TEMP_CRIT_HYST,
+	i2c_smbus_write_byte_data(data->client, TMP401_TEMP_CRIT_HYST,
 				  reg);
 
 	data->temp_crit_hyst = reg;
@@ -423,8 +421,8 @@ static ssize_t store_temp_crit_hyst(struct device *dev, struct device_attribute
 static ssize_t reset_temp_history(struct device *dev,
 	struct device_attribute	*devattr, const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct tmp401_data *data = i2c_get_clientdata(client);
+	struct tmp401_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	long val;
 
 	if (kstrtol(buf, 10, &val))
@@ -447,8 +445,7 @@ static ssize_t reset_temp_history(struct device *dev,
 static ssize_t show_update_interval(struct device *dev,
 				    struct device_attribute *attr, char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct tmp401_data *data = i2c_get_clientdata(client);
+	struct tmp401_data *data = dev_get_drvdata(dev);
 
 	return sprintf(buf, "%u\n", data->update_interval);
 }
@@ -457,8 +454,8 @@ static ssize_t set_update_interval(struct device *dev,
 				   struct device_attribute *attr,
 				   const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct tmp401_data *data = i2c_get_clientdata(client);
+	struct tmp401_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int err, rate;
 
@@ -616,10 +613,10 @@ static const struct attribute_group tmp432_group = {
  * Begin non sysfs callback code (aka Real code)
  */
 
-static void tmp401_init_client(struct i2c_client *client)
+static void tmp401_init_client(struct tmp401_data *data,
+			       struct i2c_client *client)
 {
 	int config, config_orig;
-	struct tmp401_data *data = i2c_get_clientdata(client);
 
 	/* Set the conversion rate to 2 Hz */
 	i2c_smbus_write_byte_data(client, TMP401_CONVERSION_RATE_WRITE, 5);
@@ -705,77 +702,45 @@ static int tmp401_detect(struct i2c_client *client,
 	return 0;
 }
 
-static int tmp401_remove(struct i2c_client *client)
-{
-	struct device *dev = &client->dev;
-	struct tmp401_data *data = i2c_get_clientdata(client);
-
-	if (data->hwmon_dev)
-		hwmon_device_unregister(data->hwmon_dev);
-
-	sysfs_remove_group(&dev->kobj, &tmp401_group);
-
-	if (data->kind == tmp411)
-		sysfs_remove_group(&dev->kobj, &tmp411_group);
-
-	if (data->kind == tmp432)
-		sysfs_remove_group(&dev->kobj, &tmp432_group);
-
-	return 0;
-}
-
 static int tmp401_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
+	const char *names[] = { "TMP401", "TMP411", "TMP431", "TMP432" };
 	struct device *dev = &client->dev;
-	int err;
+	struct device *hwmon_dev;
 	struct tmp401_data *data;
-	const char *names[] = { "TMP401", "TMP411", "TMP431", "TMP432" };
+	int groups = 0;
 
 	data = devm_kzalloc(dev, sizeof(struct tmp401_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->update_lock);
 	data->kind = id->driver_data;
 
 	/* Initialize the TMP401 chip */
-	tmp401_init_client(client);
+	tmp401_init_client(data, client);
 
 	/* Register sysfs hooks */
-	err = sysfs_create_group(&dev->kobj, &tmp401_group);
-	if (err)
-		return err;
+	data->groups[groups++] = &tmp401_group;
 
 	/* Register additional tmp411 sysfs hooks */
-	if (data->kind == tmp411) {
-		err = sysfs_create_group(&dev->kobj, &tmp411_group);
-		if (err)
-			goto exit_remove;
-	}
+	if (data->kind == tmp411)
+		data->groups[groups++] = &tmp411_group;
 
 	/* Register additional tmp432 sysfs hooks */
-	if (data->kind == tmp432) {
-		err = sysfs_create_group(&dev->kobj, &tmp432_group);
-		if (err)
-			goto exit_remove;
-	}
+	if (data->kind == tmp432)
+		data->groups[groups++] = &tmp432_group;
 
-	data->hwmon_dev = hwmon_device_register(dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		data->hwmon_dev = NULL;
-		goto exit_remove;
-	}
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data, data->groups);
+	if (IS_ERR(hwmon_dev))
+		return PTR_ERR(hwmon_dev);
 
 	dev_info(dev, "Detected TI %s chip\n", names[data->kind]);
 
 	return 0;
-
-exit_remove:
-	tmp401_remove(client);
-	return err;
 }
 
 static struct i2c_driver tmp401_driver = {
@@ -784,7 +749,6 @@ static struct i2c_driver tmp401_driver = {
 		.name	= "tmp401",
 	},
 	.probe		= tmp401_probe,
-	.remove		= tmp401_remove,
 	.id_table	= tmp401_id,
 	.detect		= tmp401_detect,
 	.address_list	= normal_i2c,
-- 
cgit 


From 9d86bd6ba3ba2f254720e2916dfda64737974963 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Wed, 4 Sep 2013 16:39:12 -0700
Subject: hwmon: (lm95234) Convert to use
 devm_hwmon_device_register_with_groups

Also use new macro ATTRIBUTE_GROUPS to declare attribute groups.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/lm95234.c | 137 ++++++++++++++++++------------------------------
 1 file changed, 50 insertions(+), 87 deletions(-)

diff --git a/drivers/hwmon/lm95234.c b/drivers/hwmon/lm95234.c
index 307c9eaeeb9f..cf8750745c88 100644
--- a/drivers/hwmon/lm95234.c
+++ b/drivers/hwmon/lm95234.c
@@ -57,7 +57,7 @@ static const unsigned short normal_i2c[] = { 0x18, 0x4d, 0x4e, I2C_CLIENT_END };
 
 /* Client data (each client gets its own) */
 struct lm95234_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	struct mutex update_lock;
 	unsigned long last_updated, interval;	/* in jiffies */
 	bool valid;		/* false until following fields are valid */
@@ -114,9 +114,9 @@ static u16 update_intervals[] = { 143, 364, 1000, 2500 };
 
 /* Fill value cache. Must be called with update lock held. */
 
-static int lm95234_fill_cache(struct i2c_client *client)
+static int lm95234_fill_cache(struct lm95234_data *data,
+			      struct i2c_client *client)
 {
-	struct lm95234_data *data = i2c_get_clientdata(client);
 	int i, ret;
 
 	ret = i2c_smbus_read_byte_data(client, LM95234_REG_CONVRATE);
@@ -157,9 +157,9 @@ static int lm95234_fill_cache(struct i2c_client *client)
 	return 0;
 }
 
-static int lm95234_update_device(struct i2c_client *client,
-				 struct lm95234_data *data)
+static int lm95234_update_device(struct lm95234_data *data)
 {
+	struct i2c_client *client = data->client;
 	int ret;
 
 	mutex_lock(&data->update_lock);
@@ -169,7 +169,7 @@ static int lm95234_update_device(struct i2c_client *client,
 		int i;
 
 		if (!data->valid) {
-			ret = lm95234_fill_cache(client);
+			ret = lm95234_fill_cache(data, client);
 			if (ret < 0)
 				goto abort;
 		}
@@ -209,10 +209,9 @@ abort:
 static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
 			 char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm95234_data *data = i2c_get_clientdata(client);
+	struct lm95234_data *data = dev_get_drvdata(dev);
 	int index = to_sensor_dev_attr(attr)->index;
-	int ret = lm95234_update_device(client, data);
+	int ret = lm95234_update_device(data);
 
 	if (ret)
 		return ret;
@@ -224,10 +223,9 @@ static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
 static ssize_t show_alarm(struct device *dev,
 			  struct device_attribute *attr, char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm95234_data *data = i2c_get_clientdata(client);
+	struct lm95234_data *data = dev_get_drvdata(dev);
 	u32 mask = to_sensor_dev_attr(attr)->index;
-	int ret = lm95234_update_device(client, data);
+	int ret = lm95234_update_device(data);
 
 	if (ret)
 		return ret;
@@ -238,10 +236,9 @@ static ssize_t show_alarm(struct device *dev,
 static ssize_t show_type(struct device *dev, struct device_attribute *attr,
 			 char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm95234_data *data = i2c_get_clientdata(client);
+	struct lm95234_data *data = dev_get_drvdata(dev);
 	u8 mask = to_sensor_dev_attr(attr)->index;
-	int ret = lm95234_update_device(client, data);
+	int ret = lm95234_update_device(data);
 
 	if (ret)
 		return ret;
@@ -252,11 +249,10 @@ static ssize_t show_type(struct device *dev, struct device_attribute *attr,
 static ssize_t set_type(struct device *dev, struct device_attribute *attr,
 			const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm95234_data *data = i2c_get_clientdata(client);
+	struct lm95234_data *data = dev_get_drvdata(dev);
 	unsigned long val;
 	u8 mask = to_sensor_dev_attr(attr)->index;
-	int ret = lm95234_update_device(client, data);
+	int ret = lm95234_update_device(data);
 
 	if (ret)
 		return ret;
@@ -274,7 +270,7 @@ static ssize_t set_type(struct device *dev, struct device_attribute *attr,
 	else
 		data->sensor_type &= ~mask;
 	data->valid = false;
-	i2c_smbus_write_byte_data(client, LM95234_REG_REM_MODEL,
+	i2c_smbus_write_byte_data(data->client, LM95234_REG_REM_MODEL,
 				  data->sensor_type);
 	mutex_unlock(&data->update_lock);
 
@@ -284,10 +280,9 @@ static ssize_t set_type(struct device *dev, struct device_attribute *attr,
 static ssize_t show_tcrit2(struct device *dev, struct device_attribute *attr,
 			   char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm95234_data *data = i2c_get_clientdata(client);
+	struct lm95234_data *data = dev_get_drvdata(dev);
 	int index = to_sensor_dev_attr(attr)->index;
-	int ret = lm95234_update_device(client, data);
+	int ret = lm95234_update_device(data);
 
 	if (ret)
 		return ret;
@@ -298,11 +293,10 @@ static ssize_t show_tcrit2(struct device *dev, struct device_attribute *attr,
 static ssize_t set_tcrit2(struct device *dev, struct device_attribute *attr,
 			  const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm95234_data *data = i2c_get_clientdata(client);
+	struct lm95234_data *data = dev_get_drvdata(dev);
 	int index = to_sensor_dev_attr(attr)->index;
 	long val;
-	int ret = lm95234_update_device(client, data);
+	int ret = lm95234_update_device(data);
 
 	if (ret)
 		return ret;
@@ -315,7 +309,7 @@ static ssize_t set_tcrit2(struct device *dev, struct device_attribute *attr,
 
 	mutex_lock(&data->update_lock);
 	data->tcrit2[index] = val;
-	i2c_smbus_write_byte_data(client, LM95234_REG_TCRIT2(index), val);
+	i2c_smbus_write_byte_data(data->client, LM95234_REG_TCRIT2(index), val);
 	mutex_unlock(&data->update_lock);
 
 	return count;
@@ -324,10 +318,9 @@ static ssize_t set_tcrit2(struct device *dev, struct device_attribute *attr,
 static ssize_t show_tcrit2_hyst(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm95234_data *data = i2c_get_clientdata(client);
+	struct lm95234_data *data = dev_get_drvdata(dev);
 	int index = to_sensor_dev_attr(attr)->index;
-	int ret = lm95234_update_device(client, data);
+	int ret = lm95234_update_device(data);
 
 	if (ret)
 		return ret;
@@ -340,8 +333,7 @@ static ssize_t show_tcrit2_hyst(struct device *dev,
 static ssize_t show_tcrit1(struct device *dev, struct device_attribute *attr,
 			   char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm95234_data *data = i2c_get_clientdata(client);
+	struct lm95234_data *data = dev_get_drvdata(dev);
 	int index = to_sensor_dev_attr(attr)->index;
 
 	return sprintf(buf, "%u", data->tcrit1[index] * 1000);
@@ -350,11 +342,10 @@ static ssize_t show_tcrit1(struct device *dev, struct device_attribute *attr,
 static ssize_t set_tcrit1(struct device *dev, struct device_attribute *attr,
 			  const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm95234_data *data = i2c_get_clientdata(client);
+	struct lm95234_data *data = dev_get_drvdata(dev);
 	int index = to_sensor_dev_attr(attr)->index;
+	int ret = lm95234_update_device(data);
 	long val;
-	int ret = lm95234_update_device(client, data);
 
 	if (ret)
 		return ret;
@@ -367,7 +358,7 @@ static ssize_t set_tcrit1(struct device *dev, struct device_attribute *attr,
 
 	mutex_lock(&data->update_lock);
 	data->tcrit1[index] = val;
-	i2c_smbus_write_byte_data(client, LM95234_REG_TCRIT1(index), val);
+	i2c_smbus_write_byte_data(data->client, LM95234_REG_TCRIT1(index), val);
 	mutex_unlock(&data->update_lock);
 
 	return count;
@@ -376,10 +367,9 @@ static ssize_t set_tcrit1(struct device *dev, struct device_attribute *attr,
 static ssize_t show_tcrit1_hyst(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm95234_data *data = i2c_get_clientdata(client);
+	struct lm95234_data *data = dev_get_drvdata(dev);
 	int index = to_sensor_dev_attr(attr)->index;
-	int ret = lm95234_update_device(client, data);
+	int ret = lm95234_update_device(data);
 
 	if (ret)
 		return ret;
@@ -393,11 +383,10 @@ static ssize_t set_tcrit1_hyst(struct device *dev,
 			       struct device_attribute *attr,
 			       const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm95234_data *data = i2c_get_clientdata(client);
+	struct lm95234_data *data = dev_get_drvdata(dev);
 	int index = to_sensor_dev_attr(attr)->index;
+	int ret = lm95234_update_device(data);
 	long val;
-	int ret = lm95234_update_device(client, data);
 
 	if (ret)
 		return ret;
@@ -411,7 +400,7 @@ static ssize_t set_tcrit1_hyst(struct device *dev,
 
 	mutex_lock(&data->update_lock);
 	data->thyst = val;
-	i2c_smbus_write_byte_data(client, LM95234_REG_TCRIT_HYST, val);
+	i2c_smbus_write_byte_data(data->client, LM95234_REG_TCRIT_HYST, val);
 	mutex_unlock(&data->update_lock);
 
 	return count;
@@ -420,10 +409,9 @@ static ssize_t set_tcrit1_hyst(struct device *dev,
 static ssize_t show_offset(struct device *dev, struct device_attribute *attr,
 			   char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm95234_data *data = i2c_get_clientdata(client);
+	struct lm95234_data *data = dev_get_drvdata(dev);
 	int index = to_sensor_dev_attr(attr)->index;
-	int ret = lm95234_update_device(client, data);
+	int ret = lm95234_update_device(data);
 
 	if (ret)
 		return ret;
@@ -434,11 +422,10 @@ static ssize_t show_offset(struct device *dev, struct device_attribute *attr,
 static ssize_t set_offset(struct device *dev, struct device_attribute *attr,
 			  const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm95234_data *data = i2c_get_clientdata(client);
+	struct lm95234_data *data = dev_get_drvdata(dev);
 	int index = to_sensor_dev_attr(attr)->index;
+	int ret = lm95234_update_device(data);
 	long val;
-	int ret = lm95234_update_device(client, data);
 
 	if (ret)
 		return ret;
@@ -452,7 +439,7 @@ static ssize_t set_offset(struct device *dev, struct device_attribute *attr,
 
 	mutex_lock(&data->update_lock);
 	data->toffset[index] = val;
-	i2c_smbus_write_byte_data(client, LM95234_REG_OFFSET(index), val);
+	i2c_smbus_write_byte_data(data->client, LM95234_REG_OFFSET(index), val);
 	mutex_unlock(&data->update_lock);
 
 	return count;
@@ -461,9 +448,8 @@ static ssize_t set_offset(struct device *dev, struct device_attribute *attr,
 static ssize_t show_interval(struct device *dev, struct device_attribute *attr,
 			     char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm95234_data *data = i2c_get_clientdata(client);
-	int ret = lm95234_update_device(client, data);
+	struct lm95234_data *data = dev_get_drvdata(dev);
+	int ret = lm95234_update_device(data);
 
 	if (ret)
 		return ret;
@@ -475,11 +461,10 @@ static ssize_t show_interval(struct device *dev, struct device_attribute *attr,
 static ssize_t set_interval(struct device *dev, struct device_attribute *attr,
 			    const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct lm95234_data *data = i2c_get_clientdata(client);
+	struct lm95234_data *data = dev_get_drvdata(dev);
+	int ret = lm95234_update_device(data);
 	unsigned long val;
 	u8 regval;
-	int ret = lm95234_update_device(client, data);
 
 	if (ret)
 		return ret;
@@ -495,7 +480,7 @@ static ssize_t set_interval(struct device *dev, struct device_attribute *attr,
 
 	mutex_lock(&data->update_lock);
 	data->interval = msecs_to_jiffies(update_intervals[regval]);
-	i2c_smbus_write_byte_data(client, LM95234_REG_CONVRATE, regval);
+	i2c_smbus_write_byte_data(data->client, LM95234_REG_CONVRATE, regval);
 	mutex_unlock(&data->update_lock);
 
 	return count;
@@ -579,7 +564,7 @@ static SENSOR_DEVICE_ATTR(temp5_offset, S_IWUSR | S_IRUGO, show_offset,
 static DEVICE_ATTR(update_interval, S_IWUSR | S_IRUGO, show_interval,
 		   set_interval);
 
-static struct attribute *lm95234_attributes[] = {
+static struct attribute *lm95234_attrs[] = {
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	&sensor_dev_attr_temp2_input.dev_attr.attr,
 	&sensor_dev_attr_temp3_input.dev_attr.attr,
@@ -621,10 +606,7 @@ static struct attribute *lm95234_attributes[] = {
 	&dev_attr_update_interval.attr,
 	NULL
 };
-
-static const struct attribute_group lm95234_group = {
-	.attrs = lm95234_attributes,
-};
+ATTRIBUTE_GROUPS(lm95234);
 
 static int lm95234_detect(struct i2c_client *client,
 			  struct i2c_board_info *info)
@@ -701,13 +683,14 @@ static int lm95234_probe(struct i2c_client *client,
 {
 	struct device *dev = &client->dev;
 	struct lm95234_data *data;
+	struct device *hwmon_dev;
 	int err;
 
 	data = devm_kzalloc(dev, sizeof(struct lm95234_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->update_lock);
 
 	/* Initialize the LM95234 chip */
@@ -715,30 +698,11 @@ static int lm95234_probe(struct i2c_client *client,
 	if (err < 0)
 		return err;
 
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&dev->kobj, &lm95234_group);
-	if (err)
-		return err;
-
-	data->hwmon_dev = hwmon_device_register(dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove_files;
-	}
-
-	return 0;
-
-exit_remove_files:
-	sysfs_remove_group(&dev->kobj, &lm95234_group);
-	return err;
-}
-
-static int lm95234_remove(struct i2c_client *client)
-{
-	struct lm95234_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &lm95234_group);
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data,
+							   lm95234_groups);
+	if (IS_ERR(hwmon_dev))
+		return PTR_ERR(hwmon_dev);
 
 	return 0;
 }
@@ -756,7 +720,6 @@ static struct i2c_driver lm95234_driver = {
 		.name	= DRVNAME,
 	},
 	.probe		= lm95234_probe,
-	.remove		= lm95234_remove,
 	.id_table	= lm95234_id,
 	.detect		= lm95234_detect,
 	.address_list	= normal_i2c,
-- 
cgit 


From 89de734471c5381558b1e749e0b1b88b5b497708 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Wed, 4 Sep 2013 16:55:59 -0700
Subject: hwmon: (ina209) Convert to use devm_hwmon_device_register_with_groups

Also use new macro ATTRIBUTE_GROUPS to declare attribute groups.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/ina209.c | 46 ++++++++++++++++++----------------------------
 1 file changed, 18 insertions(+), 28 deletions(-)

diff --git a/drivers/hwmon/ina209.c b/drivers/hwmon/ina209.c
index c6fdd5bd395e..5378fdefc1f7 100644
--- a/drivers/hwmon/ina209.c
+++ b/drivers/hwmon/ina209.c
@@ -63,7 +63,7 @@
 #define INA209_SHUNT_DEFAULT		10000	/* uOhm */
 
 struct ina209_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 
 	struct mutex update_lock;
 	bool valid;
@@ -78,8 +78,8 @@ struct ina209_data {
 
 static struct ina209_data *ina209_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ina209_data *data = i2c_get_clientdata(client);
+	struct ina209_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	struct ina209_data *ret = data;
 	s32 val;
 	int i;
@@ -234,7 +234,6 @@ static ssize_t ina209_set_interval(struct device *dev,
 				   struct device_attribute *da,
 				   const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
 	struct ina209_data *data = ina209_update_device(dev);
 	long val;
 	u16 regval;
@@ -250,7 +249,8 @@ static ssize_t ina209_set_interval(struct device *dev,
 	mutex_lock(&data->update_lock);
 	regval = ina209_reg_from_interval(data->regs[INA209_CONFIGURATION],
 					  val);
-	i2c_smbus_write_word_swapped(client, INA209_CONFIGURATION, regval);
+	i2c_smbus_write_word_swapped(data->client, INA209_CONFIGURATION,
+				     regval);
 	data->regs[INA209_CONFIGURATION] = regval;
 	data->update_interval = ina209_interval_from_reg(regval);
 	mutex_unlock(&data->update_lock);
@@ -260,8 +260,7 @@ static ssize_t ina209_set_interval(struct device *dev,
 static ssize_t ina209_show_interval(struct device *dev,
 				    struct device_attribute *da, char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ina209_data *data = i2c_get_clientdata(client);
+	struct ina209_data *data = dev_get_drvdata(dev);
 
 	return snprintf(buf, PAGE_SIZE, "%d\n", data->update_interval);
 }
@@ -285,9 +284,9 @@ static ssize_t ina209_reset_history(struct device *dev,
 				    const char *buf,
 				    size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ina209_data *data = i2c_get_clientdata(client);
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
+	struct ina209_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	u32 mask = attr->index;
 	long val;
 	int i, ret;
@@ -312,7 +311,6 @@ static ssize_t ina209_set_value(struct device *dev,
 				const char *buf,
 				size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
 	struct ina209_data *data = ina209_update_device(dev);
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
 	int reg = attr->index;
@@ -332,7 +330,7 @@ static ssize_t ina209_set_value(struct device *dev,
 		count = ret;
 		goto abort;
 	}
-	i2c_smbus_write_word_swapped(client, reg, ret);
+	i2c_smbus_write_word_swapped(data->client, reg, ret);
 	data->regs[reg] = ret;
 abort:
 	mutex_unlock(&data->update_lock);
@@ -457,7 +455,7 @@ static SENSOR_DEVICE_ATTR(update_interval, S_IRUGO | S_IWUSR,
  * Finally, construct an array of pointers to members of the above objects,
  * as required for sysfs_create_group()
  */
-static struct attribute *ina209_attributes[] = {
+static struct attribute *ina209_attrs[] = {
 	&sensor_dev_attr_in0_input.dev_attr.attr,
 	&sensor_dev_attr_in0_input_highest.dev_attr.attr,
 	&sensor_dev_attr_in0_input_lowest.dev_attr.attr,
@@ -498,10 +496,7 @@ static struct attribute *ina209_attributes[] = {
 
 	NULL,
 };
-
-static const struct attribute_group ina209_group = {
-	.attrs = ina209_attributes,
-};
+ATTRIBUTE_GROUPS(ina209);
 
 static void ina209_restore_conf(struct i2c_client *client,
 				struct ina209_data *data)
@@ -565,6 +560,7 @@ static int ina209_probe(struct i2c_client *client,
 {
 	struct i2c_adapter *adapter = client->adapter;
 	struct ina209_data *data;
+	struct device *hwmon_dev;
 	int ret;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA))
@@ -575,27 +571,23 @@ static int ina209_probe(struct i2c_client *client,
 		return -ENOMEM;
 
 	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->update_lock);
 
 	ret = ina209_init_client(client, data);
 	if (ret)
 		return ret;
 
-	/* Register sysfs hooks */
-	ret = sysfs_create_group(&client->dev.kobj, &ina209_group);
-	if (ret)
+	hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev,
+							   client->name,
+							   data, ina209_groups);
+	if (IS_ERR(hwmon_dev)) {
+		ret = PTR_ERR(hwmon_dev);
 		goto out_restore_conf;
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		ret = PTR_ERR(data->hwmon_dev);
-		goto out_hwmon_device_register;
 	}
 
 	return 0;
 
-out_hwmon_device_register:
-	sysfs_remove_group(&client->dev.kobj, &ina209_group);
 out_restore_conf:
 	ina209_restore_conf(client, data);
 	return ret;
@@ -605,8 +597,6 @@ static int ina209_remove(struct i2c_client *client)
 {
 	struct ina209_data *data = i2c_get_clientdata(client);
 
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &ina209_group);
 	ina209_restore_conf(client, data);
 
 	return 0;
-- 
cgit 


From 38f150fe382a42abeb333cc814becd57f5c01add Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Thu, 5 Sep 2013 08:52:41 -0700
Subject: hwmon: (ltc4261) Convert to use
 devm_hwmon_device_register_with_groups

Also use new macro ATTRIBUTE_GROUPS to declare attribute groups.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/ltc4261.c | 55 ++++++++++++++-----------------------------------
 1 file changed, 16 insertions(+), 39 deletions(-)

diff --git a/drivers/hwmon/ltc4261.c b/drivers/hwmon/ltc4261.c
index 487da58ec86c..6c50db9530db 100644
--- a/drivers/hwmon/ltc4261.c
+++ b/drivers/hwmon/ltc4261.c
@@ -55,7 +55,7 @@
 #define FAULT_OC	(1<<2)
 
 struct ltc4261_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 
 	struct mutex update_lock;
 	bool valid;
@@ -67,8 +67,8 @@ struct ltc4261_data {
 
 static struct ltc4261_data *ltc4261_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ltc4261_data *data = i2c_get_clientdata(client);
+	struct ltc4261_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	struct ltc4261_data *ret = data;
 
 	mutex_lock(&data->update_lock);
@@ -150,7 +150,6 @@ static ssize_t ltc4261_show_bool(struct device *dev,
 				 struct device_attribute *da, char *buf)
 {
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(da);
-	struct i2c_client *client = to_i2c_client(dev);
 	struct ltc4261_data *data = ltc4261_update_device(dev);
 	u8 fault;
 
@@ -159,7 +158,7 @@ static ssize_t ltc4261_show_bool(struct device *dev,
 
 	fault = data->regs[LTC4261_FAULT] & attr->index;
 	if (fault)		/* Clear reported faults in chip register */
-		i2c_smbus_write_byte_data(client, LTC4261_FAULT, ~fault);
+		i2c_smbus_write_byte_data(data->client, LTC4261_FAULT, ~fault);
 
 	return snprintf(buf, PAGE_SIZE, "%d\n", fault ? 1 : 0);
 }
@@ -197,7 +196,7 @@ static SENSOR_DEVICE_ATTR(curr1_input, S_IRUGO, ltc4261_show_value, NULL,
 static SENSOR_DEVICE_ATTR(curr1_max_alarm, S_IRUGO, ltc4261_show_bool, NULL,
 			  FAULT_OC);
 
-static struct attribute *ltc4261_attributes[] = {
+static struct attribute *ltc4261_attrs[] = {
 	&sensor_dev_attr_in1_input.dev_attr.attr,
 	&sensor_dev_attr_in1_min_alarm.dev_attr.attr,
 	&sensor_dev_attr_in1_max_alarm.dev_attr.attr,
@@ -210,60 +209,39 @@ static struct attribute *ltc4261_attributes[] = {
 
 	NULL,
 };
-
-static const struct attribute_group ltc4261_group = {
-	.attrs = ltc4261_attributes,
-};
+ATTRIBUTE_GROUPS(ltc4261);
 
 static int ltc4261_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
 	struct i2c_adapter *adapter = client->adapter;
+	struct device *dev = &client->dev;
 	struct ltc4261_data *data;
-	int ret;
+	struct device *hwmon_dev;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
 		return -ENODEV;
 
 	if (i2c_smbus_read_byte_data(client, LTC4261_STATUS) < 0) {
-		dev_err(&client->dev, "Failed to read status register\n");
+		dev_err(dev, "Failed to read status register\n");
 		return -ENODEV;
 	}
 
-	data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
+	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->update_lock);
 
 	/* Clear faults */
 	i2c_smbus_write_byte_data(client, LTC4261_FAULT, 0x00);
 
-	/* Register sysfs hooks */
-	ret = sysfs_create_group(&client->dev.kobj, &ltc4261_group);
-	if (ret)
-		return ret;
-
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		ret = PTR_ERR(data->hwmon_dev);
-		goto out_hwmon_device_register;
-	}
-
-	return 0;
-
-out_hwmon_device_register:
-	sysfs_remove_group(&client->dev.kobj, &ltc4261_group);
-	return ret;
-}
-
-static int ltc4261_remove(struct i2c_client *client)
-{
-	struct ltc4261_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &ltc4261_group);
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data,
+							   ltc4261_groups);
+	if (IS_ERR(hwmon_dev))
+		return PTR_ERR(hwmon_dev);
 
 	return 0;
 }
@@ -281,7 +259,6 @@ static struct i2c_driver ltc4261_driver = {
 		   .name = "ltc4261",
 		   },
 	.probe = ltc4261_probe,
-	.remove = ltc4261_remove,
 	.id_table = ltc4261_id,
 };
 
-- 
cgit 


From 62f9a57c0b48b6fd6c13e3b8d0c424737b1103c9 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Thu, 5 Sep 2013 09:02:34 -0700
Subject: hwmon: (jc42) Convert to use devm_hwmon_device_register_with_groups

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/jc42.c | 61 +++++++++++++++++++++-------------------------------
 1 file changed, 25 insertions(+), 36 deletions(-)

diff --git a/drivers/hwmon/jc42.c b/drivers/hwmon/jc42.c
index 4a58f130fd4e..f362cead837e 100644
--- a/drivers/hwmon/jc42.c
+++ b/drivers/hwmon/jc42.c
@@ -163,7 +163,7 @@ static struct jc42_chips jc42_chips[] = {
 
 /* Each client has this additional data */
 struct jc42_data {
-	struct device	*hwmon_dev;
+	struct i2c_client *client;
 	struct mutex	update_lock;	/* protect register access */
 	bool		extended;	/* true if extended range supported */
 	bool		valid;
@@ -193,21 +193,21 @@ MODULE_DEVICE_TABLE(i2c, jc42_id);
 
 static int jc42_suspend(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct jc42_data *data = i2c_get_clientdata(client);
+	struct jc42_data *data = dev_get_drvdata(dev);
 
 	data->config |= JC42_CFG_SHUTDOWN;
-	i2c_smbus_write_word_swapped(client, JC42_REG_CONFIG, data->config);
+	i2c_smbus_write_word_swapped(data->client, JC42_REG_CONFIG,
+				     data->config);
 	return 0;
 }
 
 static int jc42_resume(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct jc42_data *data = i2c_get_clientdata(client);
+	struct jc42_data *data = dev_get_drvdata(dev);
 
 	data->config &= ~JC42_CFG_SHUTDOWN;
-	i2c_smbus_write_word_swapped(client, JC42_REG_CONFIG, data->config);
+	i2c_smbus_write_word_swapped(data->client, JC42_REG_CONFIG,
+				     data->config);
 	return 0;
 }
 
@@ -317,15 +317,14 @@ static ssize_t set_##value(struct device *dev,				\
 			   struct device_attribute *attr,		\
 			   const char *buf, size_t count)		\
 {									\
-	struct i2c_client *client = to_i2c_client(dev);			\
-	struct jc42_data *data = i2c_get_clientdata(client);		\
+	struct jc42_data *data = dev_get_drvdata(dev);			\
 	int err, ret = count;						\
 	long val;							\
-	if (kstrtol(buf, 10, &val) < 0)				\
+	if (kstrtol(buf, 10, &val) < 0)					\
 		return -EINVAL;						\
 	mutex_lock(&data->update_lock);					\
 	data->value = jc42_temp_to_reg(val, data->extended);		\
-	err = i2c_smbus_write_word_swapped(client, reg, data->value);	\
+	err = i2c_smbus_write_word_swapped(data->client, reg, data->value); \
 	if (err < 0)							\
 		ret = err;						\
 	mutex_unlock(&data->update_lock);				\
@@ -344,8 +343,7 @@ static ssize_t set_temp_crit_hyst(struct device *dev,
 				  struct device_attribute *attr,
 				  const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct jc42_data *data = i2c_get_clientdata(client);
+	struct jc42_data *data = dev_get_drvdata(dev);
 	unsigned long val;
 	int diff, hyst;
 	int err;
@@ -368,7 +366,7 @@ static ssize_t set_temp_crit_hyst(struct device *dev,
 	mutex_lock(&data->update_lock);
 	data->config = (data->config & ~JC42_CFG_HYST_MASK)
 	  | (hyst << JC42_CFG_HYST_SHIFT);
-	err = i2c_smbus_write_word_swapped(client, JC42_REG_CONFIG,
+	err = i2c_smbus_write_word_swapped(data->client, JC42_REG_CONFIG,
 					   data->config);
 	if (err < 0)
 		ret = err;
@@ -430,8 +428,7 @@ static umode_t jc42_attribute_mode(struct kobject *kobj,
 				  struct attribute *attr, int index)
 {
 	struct device *dev = container_of(kobj, struct device, kobj);
-	struct i2c_client *client = to_i2c_client(dev);
-	struct jc42_data *data = i2c_get_clientdata(client);
+	struct jc42_data *data = dev_get_drvdata(dev);
 	unsigned int config = data->config;
 	bool readonly;
 
@@ -452,6 +449,7 @@ static const struct attribute_group jc42_group = {
 	.attrs = jc42_attributes,
 	.is_visible = jc42_attribute_mode,
 };
+__ATTRIBUTE_GROUPS(jc42);
 
 /* Return 0 if detection is successful, -ENODEV otherwise */
 static int jc42_detect(struct i2c_client *client, struct i2c_board_info *info)
@@ -487,14 +485,16 @@ static int jc42_detect(struct i2c_client *client, struct i2c_board_info *info)
 
 static int jc42_probe(struct i2c_client *client, const struct i2c_device_id *id)
 {
-	struct jc42_data *data;
-	int config, cap, err;
 	struct device *dev = &client->dev;
+	struct device *hwmon_dev;
+	struct jc42_data *data;
+	int config, cap;
 
 	data = devm_kzalloc(dev, sizeof(struct jc42_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
 
+	data->client = client;
 	i2c_set_clientdata(client, data);
 	mutex_init(&data->update_lock);
 
@@ -515,29 +515,18 @@ static int jc42_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	}
 	data->config = config;
 
-	/* Register sysfs hooks */
-	err = sysfs_create_group(&dev->kobj, &jc42_group);
-	if (err)
-		return err;
-
-	data->hwmon_dev = hwmon_device_register(dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		err = PTR_ERR(data->hwmon_dev);
-		goto exit_remove;
-	}
+	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
+							   data,
+							   jc42_groups);
+	if (IS_ERR(hwmon_dev))
+		return PTR_ERR(hwmon_dev);
 
 	return 0;
-
-exit_remove:
-	sysfs_remove_group(&dev->kobj, &jc42_group);
-	return err;
 }
 
 static int jc42_remove(struct i2c_client *client)
 {
 	struct jc42_data *data = i2c_get_clientdata(client);
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &jc42_group);
 
 	/* Restore original configuration except hysteresis */
 	if ((data->config & ~JC42_CFG_HYST_MASK) !=
@@ -553,8 +542,8 @@ static int jc42_remove(struct i2c_client *client)
 
 static struct jc42_data *jc42_update_device(struct device *dev)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct jc42_data *data = i2c_get_clientdata(client);
+	struct jc42_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	struct jc42_data *ret = data;
 	int val;
 
-- 
cgit 


From 9c09bd8d896f8dcce14d0f032cb449a00a3e3141 Mon Sep 17 00:00:00 2001
From: Fengguang Wu <fengguang.wu@intel.com>
Date: Tue, 17 Sep 2013 06:43:42 -0700
Subject: hwmon: (nct6775) fix coccinelle warnings

drivers/hwmon/nct6775.c:3866:1-3: WARNING: PTR_RET can be used

 Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: coccinelle/api/ptr_ret.cocci

CC: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/nct6775.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index fdbd63282e29..7a1b6a75ed54 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -3862,10 +3862,7 @@ static int nct6775_probe(struct platform_device *pdev)
 
 	hwmon_dev = devm_hwmon_device_register_with_groups(dev, data->name,
 							   data, data->groups);
-	if (IS_ERR(hwmon_dev))
-		return PTR_ERR(hwmon_dev);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 #ifdef CONFIG_PM
-- 
cgit 


From 31ab1ad70b25f4e19f6442e8f6d68025ba43b942 Mon Sep 17 00:00:00 2001
From: Fengguang Wu <fengguang.wu@intel.com>
Date: Tue, 17 Sep 2013 20:54:09 -0700
Subject: hwmon: (ds1621) fix coccinelle warnings

drivers/hwmon/ds1621.c:381:1-3: WARNING: PTR_RET can be used

 Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: coccinelle/api/ptr_ret.cocci

CC: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/ds1621.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/hwmon/ds1621.c b/drivers/hwmon/ds1621.c
index 5e398c98db2e..872d76744e30 100644
--- a/drivers/hwmon/ds1621.c
+++ b/drivers/hwmon/ds1621.c
@@ -378,10 +378,7 @@ static int ds1621_probe(struct i2c_client *client,
 	hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev,
 							   client->name, data,
 							   ds1621_groups);
-	if (IS_ERR(hwmon_dev))
-		return PTR_ERR(hwmon_dev);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static const struct i2c_device_id ds1621_id[] = {
-- 
cgit 


From e5840c78f3c9e3d950363e4305b65183f2998a73 Mon Sep 17 00:00:00 2001
From: Fengguang Wu <fengguang.wu@intel.com>
Date: Tue, 17 Sep 2013 20:54:11 -0700
Subject: hwmon: (max6642 fix coccinelle warnings

drivers/hwmon/max6642.c:299:1-3: WARNING: PTR_RET can be used

 Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: coccinelle/api/ptr_ret.cocci

CC: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/max6642.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/hwmon/max6642.c b/drivers/hwmon/max6642.c
index 3d61f8d719d5..8326fbd60150 100644
--- a/drivers/hwmon/max6642.c
+++ b/drivers/hwmon/max6642.c
@@ -296,10 +296,7 @@ static int max6642_probe(struct i2c_client *client,
 	hwmon_dev = devm_hwmon_device_register_with_groups(&client->dev,
 							   client->name, data,
 							   max6642_groups);
-	if (IS_ERR(hwmon_dev))
-		return PTR_ERR(hwmon_dev);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 /*
-- 
cgit 


From 4109a7160849604395eda57d6f011c8db3866482 Mon Sep 17 00:00:00 2001
From: Fengguang Wu <fengguang.wu@intel.com>
Date: Tue, 17 Sep 2013 20:54:12 -0700
Subject: hwmon: (max6697) fix coccinelle warnings

drivers/hwmon/max6697.c:649:1-3: WARNING: PTR_RET can be used

 Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: coccinelle/api/ptr_ret.cocci

CC: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/max6697.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/hwmon/max6697.c b/drivers/hwmon/max6697.c
index 0af910a479ab..7fd3eaf817f4 100644
--- a/drivers/hwmon/max6697.c
+++ b/drivers/hwmon/max6697.c
@@ -646,10 +646,7 @@ static int max6697_probe(struct i2c_client *client,
 	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
 							   data,
 							   max6697_groups);
-	if (IS_ERR(hwmon_dev))
-		return PTR_ERR(hwmon_dev);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static const struct i2c_device_id max6697_id[] = {
-- 
cgit 


From 3ea85ba7af58878889f438b1dfbe08e87befcb6d Mon Sep 17 00:00:00 2001
From: Fengguang Wu <fengguang.wu@intel.com>
Date: Tue, 17 Sep 2013 20:54:14 -0700
Subject: hwmon: (lm95234) fix coccinelle warnings

drivers/hwmon/lm95234.c:704:1-3: WARNING: PTR_RET can be used

 Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: coccinelle/api/ptr_ret.cocci

CC: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/lm95234.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/hwmon/lm95234.c b/drivers/hwmon/lm95234.c
index cf8750745c88..411202bdaf6b 100644
--- a/drivers/hwmon/lm95234.c
+++ b/drivers/hwmon/lm95234.c
@@ -701,10 +701,7 @@ static int lm95234_probe(struct i2c_client *client,
 	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
 							   data,
 							   lm95234_groups);
-	if (IS_ERR(hwmon_dev))
-		return PTR_ERR(hwmon_dev);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 /* Driver data (common to all clients) */
-- 
cgit 


From 2a253c4789db7ff46dbdba74d0f89ac08b077fda Mon Sep 17 00:00:00 2001
From: Fengguang Wu <fengguang.wu@intel.com>
Date: Tue, 17 Sep 2013 20:54:16 -0700
Subject: hwmon: (ltc4261) fix coccinelle warnings

drivers/hwmon/ltc4261.c:243:1-3: WARNING: PTR_RET can be used

 Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: coccinelle/api/ptr_ret.cocci

CC: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/ltc4261.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/hwmon/ltc4261.c b/drivers/hwmon/ltc4261.c
index 6c50db9530db..0becd69842bb 100644
--- a/drivers/hwmon/ltc4261.c
+++ b/drivers/hwmon/ltc4261.c
@@ -240,10 +240,7 @@ static int ltc4261_probe(struct i2c_client *client,
 	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
 							   data,
 							   ltc4261_groups);
-	if (IS_ERR(hwmon_dev))
-		return PTR_ERR(hwmon_dev);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static const struct i2c_device_id ltc4261_id[] = {
-- 
cgit 


From 650a2c02b5a0eaf46209bf505f95739366119bc8 Mon Sep 17 00:00:00 2001
From: Fengguang Wu <fengguang.wu@intel.com>
Date: Tue, 17 Sep 2013 20:54:24 -0700
Subject: hwmon: (jc42) fix coccinelle warnings

drivers/hwmon/jc42.c:521:1-3: WARNING: PTR_RET can be used

 Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR

Generated by: coccinelle/api/ptr_ret.cocci

CC: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/jc42.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/hwmon/jc42.c b/drivers/hwmon/jc42.c
index f362cead837e..6013611e4f21 100644
--- a/drivers/hwmon/jc42.c
+++ b/drivers/hwmon/jc42.c
@@ -518,10 +518,7 @@ static int jc42_probe(struct i2c_client *client, const struct i2c_device_id *id)
 	hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name,
 							   data,
 							   jc42_groups);
-	if (IS_ERR(hwmon_dev))
-		return PTR_ERR(hwmon_dev);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(hwmon_dev);
 }
 
 static int jc42_remove(struct i2c_client *client)
-- 
cgit 


From 20652ab8ca3854a1967baf8452c8bedceff7b92b Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 09:36:41 +0530
Subject: hwmon: (adcxx) Remove redundant spi_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Marc Pignat <marc.pignat@hevs.ch>
Acked-by: Marc Pignat <marc.pignat@hevs.ch>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/adcxx.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/hwmon/adcxx.c b/drivers/hwmon/adcxx.c
index 751b1f0264a4..04c08c2f79b8 100644
--- a/drivers/hwmon/adcxx.c
+++ b/drivers/hwmon/adcxx.c
@@ -203,7 +203,6 @@ out_err:
 	for (i--; i >= 0; i--)
 		device_remove_file(&spi->dev, &ad_input[i].dev_attr);
 
-	spi_set_drvdata(spi, NULL);
 	mutex_unlock(&adc->lock);
 	return status;
 }
@@ -218,7 +217,6 @@ static int adcxx_remove(struct spi_device *spi)
 	for (i = 0; i < 3 + adc->channels; i++)
 		device_remove_file(&spi->dev, &ad_input[i].dev_attr);
 
-	spi_set_drvdata(spi, NULL);
 	mutex_unlock(&adc->lock);
 
 	return 0;
-- 
cgit 


From 2825f033da13bc932aa470533da0f8cfb9a6e40d Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 09:36:42 +0530
Subject: hwmon: (lm70) Remove redundant spi_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Kaiwan N Billimoria <kaiwan@designergraphix.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/lm70.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/hwmon/lm70.c b/drivers/hwmon/lm70.c
index 016efa26ba7c..505a59e100b0 100644
--- a/drivers/hwmon/lm70.c
+++ b/drivers/hwmon/lm70.c
@@ -174,7 +174,6 @@ out_dev_reg_failed:
 out_dev_create_file_failed:
 	device_remove_file(&spi->dev, &dev_attr_temp1_input);
 out_dev_create_temp_file_failed:
-	spi_set_drvdata(spi, NULL);
 	return status;
 }
 
@@ -185,7 +184,6 @@ static int lm70_remove(struct spi_device *spi)
 	hwmon_device_unregister(p_lm70->hwmon_dev);
 	device_remove_file(&spi->dev, &dev_attr_temp1_input);
 	device_remove_file(&spi->dev, &dev_attr_name);
-	spi_set_drvdata(spi, NULL);
 
 	return 0;
 }
-- 
cgit 


From c50588ababd85e164a97f114d79af267a6aef42a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 27 Sep 2013 16:56:00 +0530
Subject: hwmon: (gpio-fan) Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/gpio-fan.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hwmon/gpio-fan.c b/drivers/hwmon/gpio-fan.c
index d5148c85ec5f..73181be5b30b 100644
--- a/drivers/hwmon/gpio-fan.c
+++ b/drivers/hwmon/gpio-fan.c
@@ -31,6 +31,7 @@
 #include <linux/hwmon.h>
 #include <linux/gpio.h>
 #include <linux/gpio-fan.h>
+#include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/of_gpio.h>
 
-- 
cgit 


From 84fb029faa05e1de229a68829cca5dcf85c79894 Mon Sep 17 00:00:00 2001
From: LABBE Corentin <clabbe.montjoie@gmail.com>
Date: Fri, 27 Sep 2013 14:36:04 +0200
Subject: hwmon: Correct some typos

Signed-off-by: LABBE Corentin <clabbe.montjoie@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/abituguru.c        | 6 +++---
 drivers/hwmon/abituguru3.c       | 2 +-
 drivers/hwmon/asus_atk0110.c     | 2 +-
 drivers/hwmon/max6650.c          | 2 +-
 drivers/hwmon/pmbus/pmbus_core.c | 2 +-
 drivers/hwmon/w83791d.c          | 2 +-
 drivers/hwmon/w83792d.c          | 2 +-
 drivers/hwmon/w83793.c           | 2 +-
 8 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/hwmon/abituguru.c b/drivers/hwmon/abituguru.c
index 2ebd6ce46108..9c8a6bab8228 100644
--- a/drivers/hwmon/abituguru.c
+++ b/drivers/hwmon/abituguru.c
@@ -164,7 +164,7 @@ static const u8 abituguru_bank2_max_threshold = 50;
 static const int abituguru_pwm_settings_multiplier[5] = { 0, 1, 1, 1000, 1000 };
 /*
  * Min / Max allowed values for pwm_settings. Note: pwm1 (CPU fan) is a
- * special case the minium allowed pwm% setting for this is 30% (77) on
+ * special case the minimum allowed pwm% setting for this is 30% (77) on
  * some MB's this special case is handled in the code!
  */
 static const u8 abituguru_pwm_min[5] = { 0, 170, 170, 25, 25 };
@@ -517,7 +517,7 @@ abituguru_detect_bank1_sensor_type(struct abituguru_data *data,
 
 	ABIT_UGURU_DEBUG(2, "testing bank1 sensor %d\n", (int)sensor_addr);
 	/*
-	 * Volt sensor test, enable volt low alarm, set min value ridicously
+	 * Volt sensor test, enable volt low alarm, set min value ridiculously
 	 * high, or vica versa if the reading is very high. If its a volt
 	 * sensor this should always give us an alarm.
 	 */
@@ -564,7 +564,7 @@ abituguru_detect_bank1_sensor_type(struct abituguru_data *data,
 
 	/*
 	 * Temp sensor test, enable sensor as a temp sensor, set beep value
-	 * ridicously low (but not too low, otherwise uguru ignores it).
+	 * ridiculously low (but not too low, otherwise uguru ignores it).
 	 * If its a temp sensor this should always give us an alarm.
 	 */
 	buf[0] = ABIT_UGURU_TEMP_HIGH_ALARM_ENABLE;
diff --git a/drivers/hwmon/abituguru3.c b/drivers/hwmon/abituguru3.c
index 0cac8c0b001a..4ae74aa8cdc1 100644
--- a/drivers/hwmon/abituguru3.c
+++ b/drivers/hwmon/abituguru3.c
@@ -176,7 +176,7 @@ struct abituguru3_data {
 
 	/*
 	 * The abituguru3 supports up to 48 sensors, and thus has registers
-	 * sets for 48 sensors, for convienence reasons / simplicity of the
+	 * sets for 48 sensors, for convenience reasons / simplicity of the
 	 * code we always read and store all registers for all 48 sensors
 	 */
 
diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c
index b25c64302cbc..1d7ff46812c3 100644
--- a/drivers/hwmon/asus_atk0110.c
+++ b/drivers/hwmon/asus_atk0110.c
@@ -119,7 +119,7 @@ struct atk_data {
 	acpi_handle rtmp_handle;
 	acpi_handle rvlt_handle;
 	acpi_handle rfan_handle;
-	/* new inteface */
+	/* new interface */
 	acpi_handle enumerate_handle;
 	acpi_handle read_handle;
 	acpi_handle write_handle;
diff --git a/drivers/hwmon/max6650.c b/drivers/hwmon/max6650.c
index 3c16cbd4c002..0cafc390db4d 100644
--- a/drivers/hwmon/max6650.c
+++ b/drivers/hwmon/max6650.c
@@ -660,7 +660,7 @@ static int max6650_init_client(struct i2c_client *client)
 	/*
 	 * If mode is set to "full off", we change it to "open loop" and
 	 * set DAC to 255, which has the same effect. We do this because
-	 * there's no "full off" mode defined in hwmon specifcations.
+	 * there's no "full off" mode defined in hwmon specifications.
 	 */
 
 	if ((config & MAX6650_CFG_MODE_MASK) == MAX6650_CFG_MODE_OFF) {
diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c
index 7f9ce3251063..3cbf66e9d861 100644
--- a/drivers/hwmon/pmbus/pmbus_core.c
+++ b/drivers/hwmon/pmbus/pmbus_core.c
@@ -157,7 +157,7 @@ EXPORT_SYMBOL_GPL(pmbus_write_byte);
 
 /*
  * _pmbus_write_byte() is similar to pmbus_write_byte(), but checks if
- * a device specific mapping funcion exists and calls it if necessary.
+ * a device specific mapping function exists and calls it if necessary.
  */
 static int _pmbus_write_byte(struct i2c_client *client, int page, u8 value)
 {
diff --git a/drivers/hwmon/w83791d.c b/drivers/hwmon/w83791d.c
index a3feee332e20..bdcf2dce5ec4 100644
--- a/drivers/hwmon/w83791d.c
+++ b/drivers/hwmon/w83791d.c
@@ -1043,7 +1043,7 @@ static struct sensor_device_attribute sda_temp_alarm[] = {
 	SENSOR_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13),
 };
 
-/* get reatime status of all sensors items: voltage, temp, fan */
+/* get realtime status of all sensors items: voltage, temp, fan */
 static ssize_t show_alarms_reg(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
diff --git a/drivers/hwmon/w83792d.c b/drivers/hwmon/w83792d.c
index 5febb43cb4c1..df585808adb6 100644
--- a/drivers/hwmon/w83792d.c
+++ b/drivers/hwmon/w83792d.c
@@ -579,7 +579,7 @@ static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
 	return count;
 }
 
-/* get reatime status of all sensors items: voltage, temp, fan */
+/* get realtime status of all sensors items: voltage, temp, fan */
 static ssize_t
 show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
 {
diff --git a/drivers/hwmon/w83793.c b/drivers/hwmon/w83793.c
index b0c30a546ff2..b6470ecda8fc 100644
--- a/drivers/hwmon/w83793.c
+++ b/drivers/hwmon/w83793.c
@@ -808,7 +808,7 @@ show_sf_ctrl(struct device *dev, struct device_attribute *attr, char *buf)
 	if (nr == TEMP_FAN_MAP) {
 		val = data->temp_fan_map[index];
 	} else if (nr == TEMP_PWM_ENABLE) {
-		/* +2 to transfrom into 2 and 3 to conform with sysfs intf */
+		/* +2 to transform into 2 and 3 to conform with sysfs intf */
 		val = ((data->pwm_enable >> index) & 0x01) + 2;
 	} else if (nr == TEMP_CRUISE) {
 		val = TEMP_FROM_REG(data->temp_cruise[index] & 0x7f);
-- 
cgit 


From c8ccab7ab5c71b4fab274bfd18425503a4dcc288 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sat, 16 Mar 2013 10:25:04 -0700
Subject: hwmon: (pmbus/lm25066) Add support for LM25063

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 Documentation/hwmon/lm25066   | 20 +++++++++-
 drivers/hwmon/pmbus/lm25066.c | 91 ++++++++++++++++++++++++++++++++++++++-----
 2 files changed, 101 insertions(+), 10 deletions(-)

diff --git a/Documentation/hwmon/lm25066 b/Documentation/hwmon/lm25066
index c1b57d72efc3..b34c3de5c1bc 100644
--- a/Documentation/hwmon/lm25066
+++ b/Documentation/hwmon/lm25066
@@ -8,6 +8,11 @@ Supported chips:
     Datasheets:
 	http://www.ti.com/lit/gpn/lm25056
 	http://www.ti.com/lit/gpn/lm25056a
+  * TI LM25063
+    Prefix: 'lm25063'
+    Addresses scanned: -
+    Datasheet:
+	To be announced
   * National Semiconductor LM25066
     Prefix: 'lm25066'
     Addresses scanned: -
@@ -32,7 +37,7 @@ Description
 -----------
 
 This driver supports hardware montoring for National Semiconductor / TI LM25056,
-LM25066, LM5064, and LM5064 Power Management, Monitoring, Control, and
+LM25063, LM25066, LM5064, and LM5066 Power Management, Monitoring, Control, and
 Protection ICs.
 
 The driver is a client driver to the core PMBus driver. Please see
@@ -64,8 +69,12 @@ in1_input		Measured input voltage.
 in1_average		Average measured input voltage.
 in1_min			Minimum input voltage.
 in1_max			Maximum input voltage.
+in1_crit		Critical high input voltage (LM25063 only).
+in1_lcrit		Critical low input voltage (LM25063 only).
 in1_min_alarm		Input voltage low alarm.
 in1_max_alarm		Input voltage high alarm.
+in1_lcrit_alarm		Input voltage critical low alarm (LM25063 only).
+in1_crit_alarm		Input voltage critical high alarm. (LM25063 only).
 
 in2_label		"vmon"
 in2_input		Measured voltage on VAUX pin
@@ -80,12 +89,16 @@ in3_input		Measured output voltage.
 in3_average		Average measured output voltage.
 in3_min			Minimum output voltage.
 in3_min_alarm		Output voltage low alarm.
+in3_highest		Historical minimum output voltage (LM25063 only).
+in3_lowest		Historical maximum output voltage (LM25063 only).
 
 curr1_label		"iin"
 curr1_input		Measured input current.
 curr1_average		Average measured input current.
 curr1_max		Maximum input current.
+curr1_crit		Critical input current (LM25063 only).
 curr1_max_alarm		Input current high alarm.
+curr1_crit_alarm	Input current critical high alarm (LM25063 only).
 
 power1_label		"pin"
 power1_input		Measured input power.
@@ -95,6 +108,11 @@ power1_alarm		Input power alarm
 power1_input_highest	Historical maximum power.
 power1_reset_history	Write any value to reset maximum power history.
 
+power2_label		"pout". LM25063 only.
+power2_input		Measured output power.
+power2_max		Maximum output power limit.
+power2_crit		Critical output power limit.
+
 temp1_input		Measured temperature.
 temp1_max		Maximum temperature.
 temp1_crit		Critical high temperature.
diff --git a/drivers/hwmon/pmbus/lm25066.c b/drivers/hwmon/pmbus/lm25066.c
index 6a9d6edaacb3..a26b1d1d9514 100644
--- a/drivers/hwmon/pmbus/lm25066.c
+++ b/drivers/hwmon/pmbus/lm25066.c
@@ -1,5 +1,5 @@
 /*
- * Hardware monitoring driver for LM25056 / LM25066 / LM5064 / LM5066
+ * Hardware monitoring driver for LM25056 / LM25063 / LM25066 / LM5064 / LM5066
  *
  * Copyright (c) 2011 Ericsson AB.
  * Copyright (c) 2013 Guenter Roeck
@@ -27,7 +27,7 @@
 #include <linux/i2c.h>
 #include "pmbus.h"
 
-enum chips { lm25056, lm25066, lm5064, lm5066 };
+enum chips { lm25056, lm25063, lm25066, lm5064, lm5066 };
 
 #define LM25066_READ_VAUX		0xd0
 #define LM25066_MFR_READ_IIN		0xd1
@@ -52,6 +52,11 @@ enum chips { lm25056, lm25066, lm5064, lm5066 };
 #define LM25056_MFR_STS_VAUX_OV_WARN	(1 << 1)
 #define LM25056_MFR_STS_VAUX_UV_WARN	(1 << 0)
 
+/* LM25063 only */
+
+#define LM25063_READ_VOUT_MAX		0xe5
+#define LM25063_READ_VOUT_MIN		0xe6
+
 struct __coeff {
 	short m, b, R;
 };
@@ -59,7 +64,7 @@ struct __coeff {
 #define PSC_CURRENT_IN_L	(PSC_NUM_CLASSES)
 #define PSC_POWER_L		(PSC_NUM_CLASSES + 1)
 
-static struct __coeff lm25066_coeff[4][PSC_NUM_CLASSES + 2] = {
+static struct __coeff lm25066_coeff[5][PSC_NUM_CLASSES + 2] = {
 	[lm25056] = {
 		[PSC_VOLTAGE_IN] = {
 			.m = 16296,
@@ -116,6 +121,36 @@ static struct __coeff lm25066_coeff[4][PSC_NUM_CLASSES + 2] = {
 			.m = 16,
 		},
 	},
+	[lm25063] = {
+		[PSC_VOLTAGE_IN] = {
+			.m = 16000,
+			.R = -2,
+		},
+		[PSC_VOLTAGE_OUT] = {
+			.m = 16000,
+			.R = -2,
+		},
+		[PSC_CURRENT_IN] = {
+			.m = 10000,
+			.R = -2,
+		},
+		[PSC_CURRENT_IN_L] = {
+			.m = 10000,
+			.R = -2,
+		},
+		[PSC_POWER] = {
+			.m = 5000,
+			.R = -3,
+		},
+		[PSC_POWER_L] = {
+			.m = 5000,
+			.R = -3,
+		},
+		[PSC_TEMPERATURE] = {
+			.m = 15596,
+			.R = -3,
+		},
+	},
 	[lm5064] = {
 		[PSC_VOLTAGE_IN] = {
 			.m = 4611,
@@ -178,6 +213,7 @@ static struct __coeff lm25066_coeff[4][PSC_NUM_CLASSES + 2] = {
 
 struct lm25066_data {
 	int id;
+	u16 rlimit;			/* Maximum register value */
 	struct pmbus_driver_info info;
 };
 
@@ -200,6 +236,10 @@ static int lm25066_read_word_data(struct i2c_client *client, int page, int reg)
 			/* VIN: 6.14 mV VAUX: 293 uV LSB */
 			ret = DIV_ROUND_CLOSEST(ret * 293, 6140);
 			break;
+		case lm25063:
+			/* VIN: 6.25 mV VAUX: 200.0 uV LSB */
+			ret = DIV_ROUND_CLOSEST(ret * 20, 625);
+			break;
 		case lm25066:
 			/* VIN: 4.54 mV VAUX: 283.2 uV LSB */
 			ret = DIV_ROUND_CLOSEST(ret * 2832, 45400);
@@ -253,6 +293,24 @@ static int lm25066_read_word_data(struct i2c_client *client, int page, int reg)
 	return ret;
 }
 
+static int lm25063_read_word_data(struct i2c_client *client, int page, int reg)
+{
+	int ret;
+
+	switch (reg) {
+	case PMBUS_VIRT_READ_VOUT_MAX:
+		ret = pmbus_read_word_data(client, 0, LM25063_READ_VOUT_MAX);
+		break;
+	case PMBUS_VIRT_READ_VOUT_MIN:
+		ret = pmbus_read_word_data(client, 0, LM25063_READ_VOUT_MIN);
+		break;
+	default:
+		ret = lm25066_read_word_data(client, page, reg);
+		break;
+	}
+	return ret;
+}
+
 static int lm25056_read_word_data(struct i2c_client *client, int page, int reg)
 {
 	int ret;
@@ -308,27 +366,34 @@ static int lm25056_read_byte_data(struct i2c_client *client, int page, int reg)
 static int lm25066_write_word_data(struct i2c_client *client, int page, int reg,
 				   u16 word)
 {
+	const struct pmbus_driver_info *info = pmbus_get_driver_info(client);
+	const struct lm25066_data *data = to_lm25066_data(info);
 	int ret;
 
 	switch (reg) {
+	case PMBUS_POUT_OP_FAULT_LIMIT:
+	case PMBUS_POUT_OP_WARN_LIMIT:
 	case PMBUS_VOUT_UV_WARN_LIMIT:
 	case PMBUS_OT_FAULT_LIMIT:
 	case PMBUS_OT_WARN_LIMIT:
+	case PMBUS_IIN_OC_FAULT_LIMIT:
 	case PMBUS_VIN_UV_WARN_LIMIT:
+	case PMBUS_VIN_UV_FAULT_LIMIT:
+	case PMBUS_VIN_OV_FAULT_LIMIT:
 	case PMBUS_VIN_OV_WARN_LIMIT:
-		word = ((s16)word < 0) ? 0 : clamp_val(word, 0, 0x0fff);
+		word = ((s16)word < 0) ? 0 : clamp_val(word, 0, data->rlimit);
 		ret = pmbus_write_word_data(client, 0, reg, word);
 		pmbus_clear_cache(client);
 		break;
 	case PMBUS_IIN_OC_WARN_LIMIT:
-		word = ((s16)word < 0) ? 0 : clamp_val(word, 0, 0x0fff);
+		word = ((s16)word < 0) ? 0 : clamp_val(word, 0, data->rlimit);
 		ret = pmbus_write_word_data(client, 0,
 					    LM25066_MFR_IIN_OC_WARN_LIMIT,
 					    word);
 		pmbus_clear_cache(client);
 		break;
 	case PMBUS_PIN_OP_WARN_LIMIT:
-		word = ((s16)word < 0) ? 0 : clamp_val(word, 0, 0x0fff);
+		word = ((s16)word < 0) ? 0 : clamp_val(word, 0, data->rlimit);
 		ret = pmbus_write_word_data(client, 0,
 					    LM25066_MFR_PIN_OP_WARN_LIMIT,
 					    word);
@@ -337,7 +402,7 @@ static int lm25066_write_word_data(struct i2c_client *client, int page, int reg,
 	case PMBUS_VIRT_VMON_UV_WARN_LIMIT:
 		/* Adjust from VIN coefficients (for LM25056) */
 		word = DIV_ROUND_CLOSEST((int)word * 6140, 293);
-		word = ((s16)word < 0) ? 0 : clamp_val(word, 0, 0x0fff);
+		word = ((s16)word < 0) ? 0 : clamp_val(word, 0, data->rlimit);
 		ret = pmbus_write_word_data(client, 0,
 					    LM25056_VAUX_UV_WARN_LIMIT, word);
 		pmbus_clear_cache(client);
@@ -345,7 +410,7 @@ static int lm25066_write_word_data(struct i2c_client *client, int page, int reg,
 	case PMBUS_VIRT_VMON_OV_WARN_LIMIT:
 		/* Adjust from VIN coefficients (for LM25056) */
 		word = DIV_ROUND_CLOSEST((int)word * 6140, 293);
-		word = ((s16)word < 0) ? 0 : clamp_val(word, 0, 0x0fff);
+		word = ((s16)word < 0) ? 0 : clamp_val(word, 0, data->rlimit);
 		ret = pmbus_write_word_data(client, 0,
 					    LM25056_VAUX_OV_WARN_LIMIT, word);
 		pmbus_clear_cache(client);
@@ -399,9 +464,16 @@ static int lm25066_probe(struct i2c_client *client,
 		info->func[0] |= PMBUS_HAVE_STATUS_VMON;
 		info->read_word_data = lm25056_read_word_data;
 		info->read_byte_data = lm25056_read_byte_data;
+		data->rlimit = 0x0fff;
+	} else if (data->id == lm25063) {
+		info->func[0] |= PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT
+		  | PMBUS_HAVE_POUT;
+		info->read_word_data = lm25063_read_word_data;
+		data->rlimit = 0xffff;
 	} else {
 		info->func[0] |= PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT;
 		info->read_word_data = lm25066_read_word_data;
+		data->rlimit = 0x0fff;
 	}
 	info->write_word_data = lm25066_write_word_data;
 
@@ -432,6 +504,7 @@ static int lm25066_probe(struct i2c_client *client,
 
 static const struct i2c_device_id lm25066_id[] = {
 	{"lm25056", lm25056},
+	{"lm25063", lm25063},
 	{"lm25066", lm25066},
 	{"lm5064", lm5064},
 	{"lm5066", lm5066},
@@ -453,5 +526,5 @@ static struct i2c_driver lm25066_driver = {
 module_i2c_driver(lm25066_driver);
 
 MODULE_AUTHOR("Guenter Roeck");
-MODULE_DESCRIPTION("PMBus driver for LM25056/LM25066/LM5064/LM5066");
+MODULE_DESCRIPTION("PMBus driver for LM25066 and compatible chips");
 MODULE_LICENSE("GPL");
-- 
cgit 


From c24c407e963e73d3ad18b9bc0af32cf23f37a7b0 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Mon, 23 Sep 2013 10:56:48 -0700
Subject: hwmon: (pmbus/ltc2978): Add support for LTC2977

LTC2977 is a pin compatible replacement for LTC2978.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 Documentation/hwmon/ltc2978   | 41 +++++++++++++++++++++++++++--------------
 drivers/hwmon/pmbus/ltc2978.c | 12 +++++++++---
 2 files changed, 36 insertions(+), 17 deletions(-)

diff --git a/Documentation/hwmon/ltc2978 b/Documentation/hwmon/ltc2978
index dc0d08c61305..6934936de2c7 100644
--- a/Documentation/hwmon/ltc2978
+++ b/Documentation/hwmon/ltc2978
@@ -6,6 +6,10 @@ Supported chips:
     Prefix: 'ltc2974'
     Addresses scanned: -
     Datasheet: http://www.linear.com/product/ltc2974
+  * Linear Technology LTC2977
+    Prefix: 'ltc2977'
+    Addresses scanned: -
+    Datasheet: http://www.linear.com/product/ltc2977
   * Linear Technology LTC2978
     Prefix: 'ltc2978'
     Addresses scanned: -
@@ -26,8 +30,9 @@ Description
 -----------
 
 LTC2974 is a quad digital power supply manager. LTC2978 is an octal power supply
-monitor. LTC3880 is a dual output poly-phase step-down DC/DC controller. LTC3883
-is a single phase step-down DC/DC controller.
+monitor. LTC2977 is a pin compatible replacement for LTC2978. LTC3880 is a dual
+output poly-phase step-down DC/DC controller. LTC3883 is a single phase
+step-down DC/DC controller.
 
 
 Usage Notes
@@ -49,21 +54,25 @@ Sysfs attributes
 in1_label		"vin"
 in1_input		Measured input voltage.
 in1_min			Minimum input voltage.
-in1_max			Maximum input voltage. LTC2974 and LTC2978 only.
-in1_lcrit		Critical minimum input voltage. LTC2974 and LTC2978
-			only.
+in1_max			Maximum input voltage.
+			LTC2974, LTC2977, and LTC2978 only.
+in1_lcrit		Critical minimum input voltage.
+			LTC2974, LTC2977, and LTC2978 only.
 in1_crit		Critical maximum input voltage.
 in1_min_alarm		Input voltage low alarm.
-in1_max_alarm		Input voltage high alarm. LTC2974 and LTC2978 only.
-in1_lcrit_alarm		Input voltage critical low alarm. LTC2974 and LTC2978
-			only.
+in1_max_alarm		Input voltage high alarm.
+			LTC2974, LTC2977, and LTC2978 only.
+in1_lcrit_alarm		Input voltage critical low alarm.
+			LTC2974, LTC2977, and LTC2978 only.
 in1_crit_alarm		Input voltage critical high alarm.
-in1_lowest		Lowest input voltage. LTC2974 and LTC2978 only.
+in1_lowest		Lowest input voltage.
+			LTC2974, LTC2977, and LTC2978 only.
 in1_highest		Highest input voltage.
 in1_reset_history	Reset input voltage history.
 
 in[N]_label		"vout[1-8]".
 			LTC2974: N=2-5
+			LTC2977: N=2-9
 			LTC2978: N=2-9
 			LTC3880: N=2-3
 			LTC3883: N=2
@@ -83,21 +92,23 @@ in[N]_reset_history	Reset output voltage history.
 temp[N]_input		Measured temperature.
 			On LTC2974, temp[1-4] report external temperatures,
 			and temp5 reports the chip temperature.
-			On LTC2978, only one temperature measurement is
-			supported and reports the chip temperature.
+			On LTC2977 and LTC2978, only one temperature measurement
+			is supported and reports the chip temperature.
 			On LTC3880, temp1 and temp2 report external
 			temperatures, and temp3 reports the chip temperature.
 			On LTC3883, temp1 reports an external temperature,
 			and temp2 reports the chip temperature.
-temp[N]_min		Mimimum temperature. LTC2974 and LTC2978 only.
+temp[N]_min		Mimimum temperature. LTC2974, LCT2977, and LTC2978 only.
 temp[N]_max		Maximum temperature.
 temp[N]_lcrit		Critical low temperature.
 temp[N]_crit		Critical high temperature.
-temp[N]_min_alarm	Temperature low alarm. LTC2974 and LTC2978 only.
+temp[N]_min_alarm	Temperature low alarm.
+			LTC2974, LTC2977, and LTC2978 only.
 temp[N]_max_alarm	Temperature high alarm.
 temp[N]_lcrit_alarm	Temperature critical low alarm.
 temp[N]_crit_alarm	Temperature critical high alarm.
-temp[N]_lowest		Lowest measured temperature. LTC2974 and LTC2978 only.
+temp[N]_lowest		Lowest measured temperature.
+			LTC2974, LTC2977, and LTC2978 only.
 			Not supported for chip temperature sensor on LTC2974.
 temp[N]_highest		Highest measured temperature. Not supported for chip
 			temperature sensor on LTC2974.
@@ -109,6 +120,7 @@ power1_input		Measured input power.
 
 power[N]_label		"pout[1-4]".
 			LTC2974: N=1-4
+			LTC2977: Not supported
 			LTC2978: Not supported
 			LTC3880: N=1-2
 			LTC3883: N=2
@@ -123,6 +135,7 @@ curr1_reset_history	Reset input current history. LTC3883 only.
 
 curr[N]_label		"iout[1-4]".
 			LTC2974: N=1-4
+			LTC2977: not supported
 			LTC2978: not supported
 			LTC3880: N=2-3
 			LTC3883: N=2
diff --git a/drivers/hwmon/pmbus/ltc2978.c b/drivers/hwmon/pmbus/ltc2978.c
index 586a89ef9e0f..e05ff565ef61 100644
--- a/drivers/hwmon/pmbus/ltc2978.c
+++ b/drivers/hwmon/pmbus/ltc2978.c
@@ -1,5 +1,6 @@
 /*
- * Hardware monitoring driver for LTC2974, LTC2978, LTC3880, and LTC3883
+ * Hardware monitoring driver for LTC2974, LTC2977, LTC2978, LTC3880,
+ * and LTC3883
  *
  * Copyright (c) 2011 Ericsson AB.
  * Copyright (c) 2013 Guenter Roeck
@@ -27,7 +28,7 @@
 #include <linux/i2c.h>
 #include "pmbus.h"
 
-enum chips { ltc2974, ltc2978, ltc3880, ltc3883 };
+enum chips { ltc2974, ltc2977, ltc2978, ltc3880, ltc3883 };
 
 /* Common for all chips */
 #define LTC2978_MFR_VOUT_PEAK		0xdd
@@ -35,7 +36,7 @@ enum chips { ltc2974, ltc2978, ltc3880, ltc3883 };
 #define LTC2978_MFR_TEMPERATURE_PEAK	0xdf
 #define LTC2978_MFR_SPECIAL_ID		0xe7
 
-/* LTC2974 and LTC2978 */
+/* LTC2974, LCT2977, and LTC2978 */
 #define LTC2978_MFR_VOUT_MIN		0xfb
 #define LTC2978_MFR_VIN_MIN		0xfc
 #define LTC2978_MFR_TEMPERATURE_MIN	0xfd
@@ -53,6 +54,7 @@ enum chips { ltc2974, ltc2978, ltc3880, ltc3883 };
 #define LTC3883_MFR_IIN_PEAK		0xe1
 
 #define LTC2974_ID			0x0212
+#define LTC2977_ID			0x0130
 #define LTC2978_ID_REV1			0x0121
 #define LTC2978_ID_REV2			0x0122
 #define LTC3880_ID			0x4000
@@ -363,6 +365,7 @@ static int ltc2978_write_word_data(struct i2c_client *client, int page,
 
 static const struct i2c_device_id ltc2978_id[] = {
 	{"ltc2974", ltc2974},
+	{"ltc2977", ltc2977},
 	{"ltc2978", ltc2978},
 	{"ltc3880", ltc3880},
 	{"ltc3883", ltc3883},
@@ -392,6 +395,8 @@ static int ltc2978_probe(struct i2c_client *client,
 
 	if (chip_id == LTC2974_ID) {
 		data->id = ltc2974;
+	} else if (chip_id == LTC2977_ID) {
+		data->id = ltc2977;
 	} else if (chip_id == LTC2978_ID_REV1 || chip_id == LTC2978_ID_REV2) {
 		data->id = ltc2978;
 	} else if ((chip_id & LTC3880_ID_MASK) == LTC3880_ID) {
@@ -438,6 +443,7 @@ static int ltc2978_probe(struct i2c_client *client,
 			  | PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT;
 		}
 		break;
+	case ltc2977:
 	case ltc2978:
 		info->read_word_data = ltc2978_read_word_data;
 		info->pages = LTC2978_NUM_PAGES;
-- 
cgit 


From 3f08d7f49f8365d5c9050522ee733951a503e955 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Mon, 23 Sep 2013 11:23:37 -0700
Subject: hwmon: (pmbus/ltc2978): Add support for LTC2978A

Detect LTC2978A chip ID. Treat it as LC2978.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 Documentation/hwmon/ltc2978   | 3 ++-
 drivers/hwmon/pmbus/ltc2978.c | 4 +++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/Documentation/hwmon/ltc2978 b/Documentation/hwmon/ltc2978
index 6934936de2c7..a0546fc42273 100644
--- a/Documentation/hwmon/ltc2978
+++ b/Documentation/hwmon/ltc2978
@@ -10,10 +10,11 @@ Supported chips:
     Prefix: 'ltc2977'
     Addresses scanned: -
     Datasheet: http://www.linear.com/product/ltc2977
-  * Linear Technology LTC2978
+  * Linear Technology LTC2978, LTC2978A
     Prefix: 'ltc2978'
     Addresses scanned: -
     Datasheet: http://www.linear.com/product/ltc2978
+    	       http://www.linear.com/product/ltc2978a
   * Linear Technology LTC3880
     Prefix: 'ltc3880'
     Addresses scanned: -
diff --git a/drivers/hwmon/pmbus/ltc2978.c b/drivers/hwmon/pmbus/ltc2978.c
index e05ff565ef61..de3c152a1d9a 100644
--- a/drivers/hwmon/pmbus/ltc2978.c
+++ b/drivers/hwmon/pmbus/ltc2978.c
@@ -57,6 +57,7 @@ enum chips { ltc2974, ltc2977, ltc2978, ltc3880, ltc3883 };
 #define LTC2977_ID			0x0130
 #define LTC2978_ID_REV1			0x0121
 #define LTC2978_ID_REV2			0x0122
+#define LTC2978A_ID			0x0124
 #define LTC3880_ID			0x4000
 #define LTC3880_ID_MASK			0xff00
 #define LTC3883_ID			0x4300
@@ -397,7 +398,8 @@ static int ltc2978_probe(struct i2c_client *client,
 		data->id = ltc2974;
 	} else if (chip_id == LTC2977_ID) {
 		data->id = ltc2977;
-	} else if (chip_id == LTC2978_ID_REV1 || chip_id == LTC2978_ID_REV2) {
+	} else if (chip_id == LTC2978_ID_REV1 || chip_id == LTC2978_ID_REV2 ||
+		   chip_id == LTC2978A_ID) {
 		data->id = ltc2978;
 	} else if ((chip_id & LTC3880_ID_MASK) == LTC3880_ID) {
 		data->id = ltc3880;
-- 
cgit 


From 454aee17fd441b8ee8e956196dd3ddc9c8ee96d6 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sun, 29 Sep 2013 11:49:53 -0700
Subject: hwmon: (emc1403) Convert to use
 devm_hwmon_device_register_with_groups

Simplify code and reduce its size.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/emc1403.c | 73 ++++++++++++++++++-------------------------------
 1 file changed, 26 insertions(+), 47 deletions(-)

diff --git a/drivers/hwmon/emc1403.c b/drivers/hwmon/emc1403.c
index 142e1cb8dea7..dc2a917a87bb 100644
--- a/drivers/hwmon/emc1403.c
+++ b/drivers/hwmon/emc1403.c
@@ -40,7 +40,7 @@
 #define THERMAL_REVISION_REG	0xff
 
 struct thermal_data {
-	struct device *hwmon_dev;
+	struct i2c_client *client;
 	struct mutex mutex;
 	/*
 	 * Cache the hyst value so we don't keep re-reading it. In theory
@@ -53,10 +53,11 @@ struct thermal_data {
 static ssize_t show_temp(struct device *dev,
 			struct device_attribute *attr, char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
 	struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
-	int retval = i2c_smbus_read_byte_data(client, sda->index);
+	struct thermal_data *data = dev_get_drvdata(dev);
+	int retval;
 
+	retval = i2c_smbus_read_byte_data(data->client, sda->index);
 	if (retval < 0)
 		return retval;
 	return sprintf(buf, "%d000\n", retval);
@@ -65,27 +66,27 @@ static ssize_t show_temp(struct device *dev,
 static ssize_t show_bit(struct device *dev,
 			struct device_attribute *attr, char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
 	struct sensor_device_attribute_2 *sda = to_sensor_dev_attr_2(attr);
-	int retval = i2c_smbus_read_byte_data(client, sda->nr);
+	struct thermal_data *data = dev_get_drvdata(dev);
+	int retval;
 
+	retval = i2c_smbus_read_byte_data(data->client, sda->nr);
 	if (retval < 0)
 		return retval;
-	retval &= sda->index;
-	return sprintf(buf, "%d\n", retval ? 1 : 0);
+	return sprintf(buf, "%d\n", !!(retval & sda->index));
 }
 
 static ssize_t store_temp(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
-	struct i2c_client *client = to_i2c_client(dev);
+	struct thermal_data *data = dev_get_drvdata(dev);
 	unsigned long val;
 	int retval;
 
 	if (kstrtoul(buf, 10, &val))
 		return -EINVAL;
-	retval = i2c_smbus_write_byte_data(client, sda->index,
+	retval = i2c_smbus_write_byte_data(data->client, sda->index,
 					DIV_ROUND_CLOSEST(val, 1000));
 	if (retval < 0)
 		return retval;
@@ -95,9 +96,9 @@ static ssize_t store_temp(struct device *dev,
 static ssize_t store_bit(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct thermal_data *data = i2c_get_clientdata(client);
 	struct sensor_device_attribute_2 *sda = to_sensor_dev_attr_2(attr);
+	struct thermal_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	unsigned long val;
 	int retval;
 
@@ -124,9 +125,9 @@ fail:
 static ssize_t show_hyst(struct device *dev,
 			struct device_attribute *attr, char *buf)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct thermal_data *data = i2c_get_clientdata(client);
 	struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
+	struct thermal_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int retval;
 	int hyst;
 
@@ -147,9 +148,9 @@ static ssize_t show_hyst(struct device *dev,
 static ssize_t store_hyst(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
-	struct i2c_client *client = to_i2c_client(dev);
-	struct thermal_data *data = i2c_get_clientdata(client);
 	struct sensor_device_attribute *sda = to_sensor_dev_attr(attr);
+	struct thermal_data *data = dev_get_drvdata(dev);
+	struct i2c_client *client = data->client;
 	int retval;
 	int hyst;
 	unsigned long val;
@@ -235,7 +236,7 @@ static SENSOR_DEVICE_ATTR(temp3_crit_hyst, S_IRUGO | S_IWUSR,
 static SENSOR_DEVICE_ATTR_2(power_state, S_IRUGO | S_IWUSR,
 	show_bit, store_bit, 0x03, 0x40);
 
-static struct attribute *mid_att_thermal[] = {
+static struct attribute *emc1403_attrs[] = {
 	&sensor_dev_attr_temp1_min.dev_attr.attr,
 	&sensor_dev_attr_temp1_max.dev_attr.attr,
 	&sensor_dev_attr_temp1_crit.dev_attr.attr,
@@ -263,10 +264,7 @@ static struct attribute *mid_att_thermal[] = {
 	&sensor_dev_attr_power_state.dev_attr.attr,
 	NULL
 };
-
-static const struct attribute_group m_thermal_gr = {
-	.attrs = mid_att_thermal
-};
+ATTRIBUTE_GROUPS(emc1403);
 
 static int emc1403_detect(struct i2c_client *client,
 			struct i2c_board_info *info)
@@ -304,43 +302,25 @@ static int emc1403_detect(struct i2c_client *client,
 static int emc1403_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
-	int res;
 	struct thermal_data *data;
+	struct device *hwmon_dev;
 
 	data = devm_kzalloc(&client->dev, sizeof(struct thermal_data),
 			    GFP_KERNEL);
 	if (data == NULL)
 		return -ENOMEM;
 
-	i2c_set_clientdata(client, data);
+	data->client = client;
 	mutex_init(&data->mutex);
 	data->hyst_valid = jiffies - 1;		/* Expired */
 
-	res = sysfs_create_group(&client->dev.kobj, &m_thermal_gr);
-	if (res) {
-		dev_warn(&client->dev, "create group failed\n");
-		return res;
-	}
-	data->hwmon_dev = hwmon_device_register(&client->dev);
-	if (IS_ERR(data->hwmon_dev)) {
-		res = PTR_ERR(data->hwmon_dev);
-		dev_warn(&client->dev, "register hwmon dev failed\n");
-		goto thermal_error;
-	}
-	dev_info(&client->dev, "EMC1403 Thermal chip found\n");
-	return 0;
-
-thermal_error:
-	sysfs_remove_group(&client->dev.kobj, &m_thermal_gr);
-	return res;
-}
+	hwmon_dev = hwmon_device_register_with_groups(&client->dev,
+						      client->name, data,
+						      emc1403_groups);
+	if (IS_ERR(hwmon_dev))
+		return PTR_ERR(hwmon_dev);
 
-static int emc1403_remove(struct i2c_client *client)
-{
-	struct thermal_data *data = i2c_get_clientdata(client);
-
-	hwmon_device_unregister(data->hwmon_dev);
-	sysfs_remove_group(&client->dev.kobj, &m_thermal_gr);
+	dev_info(&client->dev, "EMC1403 Thermal chip found\n");
 	return 0;
 }
 
@@ -362,7 +342,6 @@ static struct i2c_driver sensor_emc1403 = {
 	},
 	.detect = emc1403_detect,
 	.probe = emc1403_probe,
-	.remove = emc1403_remove,
 	.id_table = emc1403_idtable,
 	.address_list = emc1403_address_list,
 };
-- 
cgit 


From 0011ddfe6a03279fae60d237f2f4d0d7f7678928 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sun, 29 Sep 2013 13:20:53 -0700
Subject: hwmon: (emc1403) Add support for EMC1404 and EMC1424

EMC1404 and EMC1424 are similar to EMC1403 and EMC1423,
but support an additional external temperature sensor.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/emc1403.c | 59 ++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 51 insertions(+), 8 deletions(-)

diff --git a/drivers/hwmon/emc1403.c b/drivers/hwmon/emc1403.c
index dc2a917a87bb..90ec1173b8a1 100644
--- a/drivers/hwmon/emc1403.c
+++ b/drivers/hwmon/emc1403.c
@@ -21,7 +21,6 @@
  *
  * TODO
  *	-	cache alarm and critical limit registers
- *	-	add emc1404 support
  */
 
 #include <linux/module.h>
@@ -41,6 +40,7 @@
 
 struct thermal_data {
 	struct i2c_client *client;
+	const struct attribute_group *groups[3];
 	struct mutex mutex;
 	/*
 	 * Cache the hyst value so we don't keep re-reading it. In theory
@@ -233,6 +233,22 @@ static SENSOR_DEVICE_ATTR_2(temp3_crit_alarm, S_IRUGO,
 static SENSOR_DEVICE_ATTR(temp3_crit_hyst, S_IRUGO | S_IWUSR,
 	show_hyst, store_hyst, 0x1A);
 
+static SENSOR_DEVICE_ATTR(temp4_min, S_IRUGO | S_IWUSR,
+	show_temp, store_temp, 0x2D);
+static SENSOR_DEVICE_ATTR(temp4_max, S_IRUGO | S_IWUSR,
+	show_temp, store_temp, 0x2C);
+static SENSOR_DEVICE_ATTR(temp4_crit, S_IRUGO | S_IWUSR,
+	show_temp, store_temp, 0x30);
+static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 0x2A);
+static SENSOR_DEVICE_ATTR_2(temp4_min_alarm, S_IRUGO,
+	show_bit, NULL, 0x36, 0x08);
+static SENSOR_DEVICE_ATTR_2(temp4_max_alarm, S_IRUGO,
+	show_bit, NULL, 0x35, 0x08);
+static SENSOR_DEVICE_ATTR_2(temp4_crit_alarm, S_IRUGO,
+	show_bit, NULL, 0x37, 0x08);
+static SENSOR_DEVICE_ATTR(temp4_crit_hyst, S_IRUGO | S_IWUSR,
+	show_hyst, store_hyst, 0x30);
+
 static SENSOR_DEVICE_ATTR_2(power_state, S_IRUGO | S_IWUSR,
 	show_bit, store_bit, 0x03, 0x40);
 
@@ -264,7 +280,26 @@ static struct attribute *emc1403_attrs[] = {
 	&sensor_dev_attr_power_state.dev_attr.attr,
 	NULL
 };
-ATTRIBUTE_GROUPS(emc1403);
+
+static const struct attribute_group emc1403_group = {
+	.attrs = emc1403_attrs,
+};
+
+static struct attribute *emc1404_attrs[] = {
+	&sensor_dev_attr_temp4_min.dev_attr.attr,
+	&sensor_dev_attr_temp4_max.dev_attr.attr,
+	&sensor_dev_attr_temp4_crit.dev_attr.attr,
+	&sensor_dev_attr_temp4_input.dev_attr.attr,
+	&sensor_dev_attr_temp4_min_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp4_max_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp4_crit_alarm.dev_attr.attr,
+	&sensor_dev_attr_temp4_crit_hyst.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group emc1404_group = {
+	.attrs = emc1404_attrs,
+};
 
 static int emc1403_detect(struct i2c_client *client,
 			struct i2c_board_info *info)
@@ -284,10 +319,12 @@ static int emc1403_detect(struct i2c_client *client,
 	case 0x23:
 		strlcpy(info->type, "emc1423", I2C_NAME_SIZE);
 		break;
-	/*
-	 * Note: 0x25 is the 1404 which is very similar and this
-	 * driver could be extended
-	 */
+	case 0x25:
+		strlcpy(info->type, "emc1404", I2C_NAME_SIZE);
+		break;
+	case 0x27:
+		strlcpy(info->type, "emc1424", I2C_NAME_SIZE);
+		break;
 	default:
 		return -ENODEV;
 	}
@@ -314,13 +351,17 @@ static int emc1403_probe(struct i2c_client *client,
 	mutex_init(&data->mutex);
 	data->hyst_valid = jiffies - 1;		/* Expired */
 
+	data->groups[0] = &emc1403_group;
+	if (id->driver_data)
+		data->groups[1] = &emc1404_group;
+
 	hwmon_dev = hwmon_device_register_with_groups(&client->dev,
 						      client->name, data,
-						      emc1403_groups);
+						      data->groups);
 	if (IS_ERR(hwmon_dev))
 		return PTR_ERR(hwmon_dev);
 
-	dev_info(&client->dev, "EMC1403 Thermal chip found\n");
+	dev_info(&client->dev, "%s Thermal chip found\n", id->name);
 	return 0;
 }
 
@@ -330,7 +371,9 @@ static const unsigned short emc1403_address_list[] = {
 
 static const struct i2c_device_id emc1403_idtable[] = {
 	{ "emc1403", 0 },
+	{ "emc1404", 1 },
 	{ "emc1423", 0 },
+	{ "emc1424", 1 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, emc1403_idtable);
-- 
cgit 


From c0ab6e56dcb7ca9903d460247cb464e769ae6e77 Mon Sep 17 00:00:00 2001
From: Casey Schaufler <casey@schaufler-ca.com>
Date: Fri, 11 Oct 2013 18:06:39 -0700
Subject: Smack: Implement lock security mode

Linux file locking does not follow the same rules
as other mechanisms. Even though it is a write operation
a process can set a read lock on files which it has open
only for read access. Two programs with read access to
a file can use read locks to communicate.

This is not acceptable in a Mandatory Access Control
environment. Smack treats setting a read lock as the
write operation that it is. Unfortunately, many programs
assume that setting a read lock is a read operation.
These programs are unhappy in the Smack environment.

This patch introduces a new access mode (lock) to address
this problem. A process with lock access to a file can
set a read lock. A process with write access to a file can
set a read lock or a write lock. This prevents a situation
where processes are granted write access just so they can
set read locks.

Targeted for git://git.gitorious.org/smack-next/kernel.git

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
---
 security/smack/smack.h        | 12 ++++++++----
 security/smack/smack_access.c | 10 ++++++++++
 security/smack/smack_lsm.c    |  9 +++++++--
 security/smack/smackfs.c      | 10 ++++++++--
 4 files changed, 33 insertions(+), 8 deletions(-)

diff --git a/security/smack/smack.h b/security/smack/smack.h
index 076b8e8a51ab..364cc64fce71 100644
--- a/security/smack/smack.h
+++ b/security/smack/smack.h
@@ -177,9 +177,13 @@ struct smk_port_label {
 #define SMACK_CIPSO_MAXCATNUM           184     /* 23 * 8 */
 
 /*
- * Flag for transmute access
+ * Flags for untraditional access modes.
+ * It shouldn't be necessary to avoid conflicts with definitions
+ * in fs.h, but do so anyway.
  */
-#define MAY_TRANSMUTE	64
+#define MAY_TRANSMUTE	0x00001000	/* Controls directory labeling */
+#define MAY_LOCK	0x00002000	/* Locks should be writes, but ... */
+
 /*
  * Just to make the common cases easier to deal with
  */
@@ -188,9 +192,9 @@ struct smk_port_label {
 #define MAY_NOT		0
 
 /*
- * Number of access types used by Smack (rwxat)
+ * Number of access types used by Smack (rwxatl)
  */
-#define SMK_NUM_ACCESS_TYPE 5
+#define SMK_NUM_ACCESS_TYPE 6
 
 /* SMACK data */
 struct smack_audit_data {
diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c
index b3b59b1e93d6..14293cd9b1e5 100644
--- a/security/smack/smack_access.c
+++ b/security/smack/smack_access.c
@@ -84,6 +84,8 @@ int log_policy = SMACK_AUDIT_DENIED;
  *
  * Do the object check first because that is more
  * likely to differ.
+ *
+ * Allowing write access implies allowing locking.
  */
 int smk_access_entry(char *subject_label, char *object_label,
 			struct list_head *rule_list)
@@ -99,6 +101,11 @@ int smk_access_entry(char *subject_label, char *object_label,
 		}
 	}
 
+	/*
+	 * MAY_WRITE implies MAY_LOCK.
+	 */
+	if ((may & MAY_WRITE) == MAY_WRITE)
+		may |= MAY_LOCK;
 	return may;
 }
 
@@ -245,6 +252,7 @@ out_audit:
 static inline void smack_str_from_perm(char *string, int access)
 {
 	int i = 0;
+
 	if (access & MAY_READ)
 		string[i++] = 'r';
 	if (access & MAY_WRITE)
@@ -255,6 +263,8 @@ static inline void smack_str_from_perm(char *string, int access)
 		string[i++] = 'a';
 	if (access & MAY_TRANSMUTE)
 		string[i++] = 't';
+	if (access & MAY_LOCK)
+		string[i++] = 'l';
 	string[i] = '\0';
 }
 /**
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 8825375cc031..88d366e55793 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -1146,7 +1146,7 @@ static int smack_file_ioctl(struct file *file, unsigned int cmd,
  * @file: the object
  * @cmd: unused
  *
- * Returns 0 if current has write access, error code otherwise
+ * Returns 0 if current has lock access, error code otherwise
  */
 static int smack_file_lock(struct file *file, unsigned int cmd)
 {
@@ -1154,7 +1154,7 @@ static int smack_file_lock(struct file *file, unsigned int cmd)
 
 	smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
 	smk_ad_setfield_u_fs_path(&ad, file->f_path);
-	return smk_curacc(file->f_security, MAY_WRITE, &ad);
+	return smk_curacc(file->f_security, MAY_LOCK, &ad);
 }
 
 /**
@@ -1178,8 +1178,13 @@ static int smack_file_fcntl(struct file *file, unsigned int cmd,
 
 	switch (cmd) {
 	case F_GETLK:
+		break;
 	case F_SETLK:
 	case F_SETLKW:
+		smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
+		smk_ad_setfield_u_fs_path(&ad, file->f_path);
+		rc = smk_curacc(file->f_security, MAY_LOCK, &ad);
+		break;
 	case F_SETOWN:
 	case F_SETSIG:
 		smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_PATH);
diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index 80f4b4a45725..160aa08e3cd5 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -139,7 +139,7 @@ const char *smack_cipso_option = SMACK_CIPSO_OPTION;
  * SMK_LOADLEN: Smack rule length
  */
 #define SMK_OACCESS	"rwxa"
-#define SMK_ACCESS	"rwxat"
+#define SMK_ACCESS	"rwxatl"
 #define SMK_OACCESSLEN	(sizeof(SMK_OACCESS) - 1)
 #define SMK_ACCESSLEN	(sizeof(SMK_ACCESS) - 1)
 #define SMK_OLOADLEN	(SMK_LABELLEN + SMK_LABELLEN + SMK_OACCESSLEN)
@@ -282,6 +282,10 @@ static int smk_perm_from_str(const char *string)
 		case 'T':
 			perm |= MAY_TRANSMUTE;
 			break;
+		case 'l':
+		case 'L':
+			perm |= MAY_LOCK;
+			break;
 		default:
 			return perm;
 		}
@@ -452,7 +456,7 @@ static ssize_t smk_write_rules_list(struct file *file, const char __user *buf,
 		/*
 		 * Minor hack for backward compatibility
 		 */
-		if (count != SMK_OLOADLEN && count != SMK_LOADLEN)
+		if (count < SMK_OLOADLEN || count > SMK_LOADLEN)
 			return -EINVAL;
 	} else {
 		if (count >= PAGE_SIZE) {
@@ -592,6 +596,8 @@ static void smk_rule_show(struct seq_file *s, struct smack_rule *srp, int max)
 		seq_putc(s, 'a');
 	if (srp->smk_access & MAY_TRANSMUTE)
 		seq_putc(s, 't');
+	if (srp->smk_access & MAY_LOCK)
+		seq_putc(s, 'l');
 
 	seq_putc(s, '\n');
 }
-- 
cgit 


From 5c0a0fc81f4dc786b42c4fc9c7c72ba635406ab5 Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Fri, 18 Oct 2013 07:23:14 +0200
Subject: tipc: don't use memcpy to copy from user space

tipc_msg_build() calls skb_copy_to_linear_data_offset() to copy data
from user space to kernel space. However, the latter function does
in its turn call memcpy() to perform the actual copying. This poses
an obvious security and robustness risk, since memcpy() never makes
any validity check on the pointer it is copying from.

To correct this, we the replace the offending function call with
a call to memcpy_fromiovecend(), which uses copy_from_user() to
perform the copying.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/tipc/msg.c | 22 +++++++++-------------
 1 file changed, 9 insertions(+), 13 deletions(-)

diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index ced60e2fc4f7..1e76d91e5691 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -76,10 +76,11 @@ int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect,
 		   u32 num_sect, unsigned int total_len, int max_size,
 		   struct sk_buff **buf)
 {
-	int dsz, sz, hsz, pos, res, cnt;
+	int dsz, sz, hsz;
+	unsigned char *to;
 
 	dsz = total_len;
-	pos = hsz = msg_hdr_sz(hdr);
+	hsz = msg_hdr_sz(hdr);
 	sz = hsz + dsz;
 	msg_set_size(hdr, sz);
 	if (unlikely(sz > max_size)) {
@@ -91,16 +92,11 @@ int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect,
 	if (!(*buf))
 		return -ENOMEM;
 	skb_copy_to_linear_data(*buf, hdr, hsz);
-	for (res = 1, cnt = 0; res && (cnt < num_sect); cnt++) {
-		skb_copy_to_linear_data_offset(*buf, pos,
-					       msg_sect[cnt].iov_base,
-					       msg_sect[cnt].iov_len);
-		pos += msg_sect[cnt].iov_len;
+	to = (*buf)->data + hsz;
+	if (total_len && memcpy_fromiovecend(to, msg_sect, 0, dsz)) {
+		kfree_skb(*buf);
+		*buf = NULL;
+		return -EFAULT;
 	}
-	if (likely(res))
-		return dsz;
-
-	kfree_skb(*buf);
-	*buf = NULL;
-	return -EFAULT;
+	return dsz;
 }
-- 
cgit 


From 9446b87addd90a067b21c726aedd3c42694c1780 Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Fri, 18 Oct 2013 07:23:15 +0200
Subject: tipc: remove iovec length parameter from all sending functions

tipc_msg_build() now copies message data from iovec to skb_buff
using memcpy_fromiovecend(), which doesn't need to be passed the
iovec length to perform the copying.

So we remove the parameter indicating iovec length in all
functions where TIPC messages are built and sent.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/tipc/link.c   | 25 +++++++++------------
 net/tipc/link.h   |  4 +---
 net/tipc/msg.c    |  7 +++---
 net/tipc/msg.h    |  3 +--
 net/tipc/port.c   | 66 +++++++++++++++++++++++--------------------------------
 net/tipc/port.h   | 16 +++++---------
 net/tipc/socket.c |  6 +----
 7 files changed, 49 insertions(+), 78 deletions(-)

diff --git a/net/tipc/link.c b/net/tipc/link.c
index 0cc3d9015c5d..b02a6dc4efe4 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -97,8 +97,7 @@ static int  link_recv_changeover_msg(struct tipc_link **l_ptr,
 static void link_set_supervision_props(struct tipc_link *l_ptr, u32 tolerance);
 static int  link_send_sections_long(struct tipc_port *sender,
 				    struct iovec const *msg_sect,
-				    u32 num_sect, unsigned int total_len,
-				    u32 destnode);
+				    unsigned int len, u32 destnode);
 static void link_state_event(struct tipc_link *l_ptr, u32 event);
 static void link_reset_statistics(struct tipc_link *l_ptr);
 static void link_print(struct tipc_link *l_ptr, const char *str);
@@ -1065,8 +1064,7 @@ static int link_send_buf_fast(struct tipc_link *l_ptr, struct sk_buff *buf,
  */
 int tipc_link_send_sections_fast(struct tipc_port *sender,
 				 struct iovec const *msg_sect,
-				 const u32 num_sect, unsigned int total_len,
-				 u32 destaddr)
+				 unsigned int len, u32 destaddr)
 {
 	struct tipc_msg *hdr = &sender->phdr;
 	struct tipc_link *l_ptr;
@@ -1080,8 +1078,7 @@ again:
 	 * Try building message using port's max_pkt hint.
 	 * (Must not hold any locks while building message.)
 	 */
-	res = tipc_msg_build(hdr, msg_sect, num_sect, total_len,
-			     sender->max_pkt, &buf);
+	res = tipc_msg_build(hdr, msg_sect, len, sender->max_pkt, &buf);
 	/* Exit if build request was invalid */
 	if (unlikely(res < 0))
 		return res;
@@ -1121,8 +1118,7 @@ exit:
 			if ((msg_hdr_sz(hdr) + res) <= sender->max_pkt)
 				goto again;
 
-			return link_send_sections_long(sender, msg_sect,
-						       num_sect, total_len,
+			return link_send_sections_long(sender, msg_sect, len,
 						       destaddr);
 		}
 		tipc_node_unlock(node);
@@ -1133,8 +1129,8 @@ exit:
 	if (buf)
 		return tipc_reject_msg(buf, TIPC_ERR_NO_NODE);
 	if (res >= 0)
-		return tipc_port_reject_sections(sender, hdr, msg_sect, num_sect,
-						 total_len, TIPC_ERR_NO_NODE);
+		return tipc_port_reject_sections(sender, hdr, msg_sect,
+						 len, TIPC_ERR_NO_NODE);
 	return res;
 }
 
@@ -1154,13 +1150,12 @@ exit:
  */
 static int link_send_sections_long(struct tipc_port *sender,
 				   struct iovec const *msg_sect,
-				   u32 num_sect, unsigned int total_len,
-				   u32 destaddr)
+				   unsigned int len, u32 destaddr)
 {
 	struct tipc_link *l_ptr;
 	struct tipc_node *node;
 	struct tipc_msg *hdr = &sender->phdr;
-	u32 dsz = total_len;
+	u32 dsz = len;
 	u32 max_pkt, fragm_sz, rest;
 	struct tipc_msg fragm_hdr;
 	struct sk_buff *buf, *buf_chain, *prev;
@@ -1283,8 +1278,8 @@ reject:
 			buf = buf_chain->next;
 			kfree_skb(buf_chain);
 		}
-		return tipc_port_reject_sections(sender, hdr, msg_sect, num_sect,
-						 total_len, TIPC_ERR_NO_NODE);
+		return tipc_port_reject_sections(sender, hdr, msg_sect,
+						 len, TIPC_ERR_NO_NODE);
 	}
 
 	/* Append chain of fragments to send queue & send them */
diff --git a/net/tipc/link.h b/net/tipc/link.h
index c048ed1cbd76..55cf8554a08b 100644
--- a/net/tipc/link.h
+++ b/net/tipc/link.h
@@ -227,9 +227,7 @@ int tipc_link_send_buf(struct tipc_link *l_ptr, struct sk_buff *buf);
 u32 tipc_link_get_max_pkt(u32 dest, u32 selector);
 int tipc_link_send_sections_fast(struct tipc_port *sender,
 				 struct iovec const *msg_sect,
-				 const u32 num_sect,
-				 unsigned int total_len,
-				 u32 destnode);
+				 unsigned int len, u32 destnode);
 void tipc_link_recv_bundle(struct sk_buff *buf);
 int  tipc_link_recv_fragment(struct sk_buff **pending,
 			     struct sk_buff **fb,
diff --git a/net/tipc/msg.c b/net/tipc/msg.c
index 1e76d91e5691..e525f8ce1dee 100644
--- a/net/tipc/msg.c
+++ b/net/tipc/msg.c
@@ -73,13 +73,12 @@ void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type, u32 hsize,
  * Returns message data size or errno
  */
 int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect,
-		   u32 num_sect, unsigned int total_len, int max_size,
-		   struct sk_buff **buf)
+		   unsigned int len, int max_size, struct sk_buff **buf)
 {
 	int dsz, sz, hsz;
 	unsigned char *to;
 
-	dsz = total_len;
+	dsz = len;
 	hsz = msg_hdr_sz(hdr);
 	sz = hsz + dsz;
 	msg_set_size(hdr, sz);
@@ -93,7 +92,7 @@ int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect,
 		return -ENOMEM;
 	skb_copy_to_linear_data(*buf, hdr, hsz);
 	to = (*buf)->data + hsz;
-	if (total_len && memcpy_fromiovecend(to, msg_sect, 0, dsz)) {
+	if (len && memcpy_fromiovecend(to, msg_sect, 0, dsz)) {
 		kfree_skb(*buf);
 		*buf = NULL;
 		return -EFAULT;
diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index 5e4ccf5c27df..559b73a9bf35 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -722,6 +722,5 @@ u32 tipc_msg_tot_importance(struct tipc_msg *m);
 void tipc_msg_init(struct tipc_msg *m, u32 user, u32 type, u32 hsize,
 		   u32 destnode);
 int tipc_msg_build(struct tipc_msg *hdr, struct iovec const *msg_sect,
-		   u32 num_sect, unsigned int total_len, int max_size,
-		   struct sk_buff **buf);
+		   unsigned int len, int max_size, struct sk_buff **buf);
 #endif
diff --git a/net/tipc/port.c b/net/tipc/port.c
index b3ed2fcab4fb..c081a7632302 100644
--- a/net/tipc/port.c
+++ b/net/tipc/port.c
@@ -90,8 +90,7 @@ int tipc_port_peer_msg(struct tipc_port *p_ptr, struct tipc_msg *msg)
  * tipc_multicast - send a multicast message to local and remote destinations
  */
 int tipc_multicast(u32 ref, struct tipc_name_seq const *seq,
-		   u32 num_sect, struct iovec const *msg_sect,
-		   unsigned int total_len)
+		   struct iovec const *msg_sect, unsigned int len)
 {
 	struct tipc_msg *hdr;
 	struct sk_buff *buf;
@@ -114,8 +113,7 @@ int tipc_multicast(u32 ref, struct tipc_name_seq const *seq,
 	msg_set_namelower(hdr, seq->lower);
 	msg_set_nameupper(hdr, seq->upper);
 	msg_set_hdr_sz(hdr, MCAST_H_SIZE);
-	res = tipc_msg_build(hdr, msg_sect, num_sect, total_len, MAX_MSG_SIZE,
-			     &buf);
+	res = tipc_msg_build(hdr, msg_sect, len, MAX_MSG_SIZE, &buf);
 	if (unlikely(!buf))
 		return res;
 
@@ -436,14 +434,13 @@ exit:
 }
 
 int tipc_port_reject_sections(struct tipc_port *p_ptr, struct tipc_msg *hdr,
-			      struct iovec const *msg_sect, u32 num_sect,
-			      unsigned int total_len, int err)
+			      struct iovec const *msg_sect, unsigned int len,
+			      int err)
 {
 	struct sk_buff *buf;
 	int res;
 
-	res = tipc_msg_build(hdr, msg_sect, num_sect, total_len, MAX_MSG_SIZE,
-			     &buf);
+	res = tipc_msg_build(hdr, msg_sect, len, MAX_MSG_SIZE, &buf);
 	if (!buf)
 		return res;
 
@@ -918,15 +915,14 @@ int tipc_port_recv_msg(struct sk_buff *buf)
  *  tipc_port_recv_sections(): Concatenate and deliver sectioned
  *                        message for this node.
  */
-static int tipc_port_recv_sections(struct tipc_port *sender, unsigned int num_sect,
+static int tipc_port_recv_sections(struct tipc_port *sender,
 				   struct iovec const *msg_sect,
-				   unsigned int total_len)
+				   unsigned int len)
 {
 	struct sk_buff *buf;
 	int res;
 
-	res = tipc_msg_build(&sender->phdr, msg_sect, num_sect, total_len,
-			     MAX_MSG_SIZE, &buf);
+	res = tipc_msg_build(&sender->phdr, msg_sect, len, MAX_MSG_SIZE, &buf);
 	if (likely(buf))
 		tipc_port_recv_msg(buf);
 	return res;
@@ -935,8 +931,7 @@ static int tipc_port_recv_sections(struct tipc_port *sender, unsigned int num_se
 /**
  * tipc_send - send message sections on connection
  */
-int tipc_send(u32 ref, unsigned int num_sect, struct iovec const *msg_sect,
-	      unsigned int total_len)
+int tipc_send(u32 ref, struct iovec const *msg_sect, unsigned int len)
 {
 	struct tipc_port *p_ptr;
 	u32 destnode;
@@ -950,11 +945,10 @@ int tipc_send(u32 ref, unsigned int num_sect, struct iovec const *msg_sect,
 	if (!tipc_port_congested(p_ptr)) {
 		destnode = port_peernode(p_ptr);
 		if (likely(!in_own_node(destnode)))
-			res = tipc_link_send_sections_fast(p_ptr, msg_sect, num_sect,
-							   total_len, destnode);
+			res = tipc_link_send_sections_fast(p_ptr, msg_sect,
+							   len, destnode);
 		else
-			res = tipc_port_recv_sections(p_ptr, num_sect, msg_sect,
-						      total_len);
+			res = tipc_port_recv_sections(p_ptr, msg_sect, len);
 
 		if (likely(res != -ELINKCONG)) {
 			p_ptr->congested = 0;
@@ -965,7 +959,7 @@ int tipc_send(u32 ref, unsigned int num_sect, struct iovec const *msg_sect,
 	}
 	if (port_unreliable(p_ptr)) {
 		p_ptr->congested = 0;
-		return total_len;
+		return len;
 	}
 	return -ELINKCONG;
 }
@@ -974,8 +968,7 @@ int tipc_send(u32 ref, unsigned int num_sect, struct iovec const *msg_sect,
  * tipc_send2name - send message sections to port name
  */
 int tipc_send2name(u32 ref, struct tipc_name const *name, unsigned int domain,
-		   unsigned int num_sect, struct iovec const *msg_sect,
-		   unsigned int total_len)
+		   struct iovec const *msg_sect, unsigned int len)
 {
 	struct tipc_port *p_ptr;
 	struct tipc_msg *msg;
@@ -999,36 +992,32 @@ int tipc_send2name(u32 ref, struct tipc_name const *name, unsigned int domain,
 
 	if (likely(destport || destnode)) {
 		if (likely(in_own_node(destnode)))
-			res = tipc_port_recv_sections(p_ptr, num_sect,
-						      msg_sect, total_len);
+			res = tipc_port_recv_sections(p_ptr, msg_sect, len);
 		else if (tipc_own_addr)
 			res = tipc_link_send_sections_fast(p_ptr, msg_sect,
-							   num_sect, total_len,
-							   destnode);
+							   len, destnode);
 		else
 			res = tipc_port_reject_sections(p_ptr, msg, msg_sect,
-							num_sect, total_len,
-							TIPC_ERR_NO_NODE);
+							len, TIPC_ERR_NO_NODE);
 		if (likely(res != -ELINKCONG)) {
 			if (res > 0)
 				p_ptr->sent++;
 			return res;
 		}
 		if (port_unreliable(p_ptr)) {
-			return total_len;
+			return len;
 		}
 		return -ELINKCONG;
 	}
-	return tipc_port_reject_sections(p_ptr, msg, msg_sect, num_sect,
-					 total_len, TIPC_ERR_NO_NAME);
+	return tipc_port_reject_sections(p_ptr, msg, msg_sect, len,
+					 TIPC_ERR_NO_NAME);
 }
 
 /**
  * tipc_send2port - send message sections to port identity
  */
 int tipc_send2port(u32 ref, struct tipc_portid const *dest,
-		   unsigned int num_sect, struct iovec const *msg_sect,
-		   unsigned int total_len)
+		   struct iovec const *msg_sect, unsigned int len)
 {
 	struct tipc_port *p_ptr;
 	struct tipc_msg *msg;
@@ -1046,21 +1035,20 @@ int tipc_send2port(u32 ref, struct tipc_portid const *dest,
 	msg_set_hdr_sz(msg, BASIC_H_SIZE);
 
 	if (in_own_node(dest->node))
-		res =  tipc_port_recv_sections(p_ptr, num_sect, msg_sect,
-					       total_len);
+		res =  tipc_port_recv_sections(p_ptr, msg_sect, len);
 	else if (tipc_own_addr)
-		res = tipc_link_send_sections_fast(p_ptr, msg_sect, num_sect,
-						   total_len, dest->node);
+		res = tipc_link_send_sections_fast(p_ptr, msg_sect, len,
+						   dest->node);
 	else
-		res = tipc_port_reject_sections(p_ptr, msg, msg_sect, num_sect,
-						total_len, TIPC_ERR_NO_NODE);
+		res = tipc_port_reject_sections(p_ptr, msg, msg_sect, len,
+						TIPC_ERR_NO_NODE);
 	if (likely(res != -ELINKCONG)) {
 		if (res > 0)
 			p_ptr->sent++;
 		return res;
 	}
 	if (port_unreliable(p_ptr)) {
-		return total_len;
+		return len;
 	}
 	return -ELINKCONG;
 }
diff --git a/net/tipc/port.h b/net/tipc/port.h
index 5a7026b9c345..912253597343 100644
--- a/net/tipc/port.h
+++ b/net/tipc/port.h
@@ -151,24 +151,20 @@ int tipc_port_peer_msg(struct tipc_port *p_ptr, struct tipc_msg *msg);
  * TIPC messaging routines
  */
 int tipc_port_recv_msg(struct sk_buff *buf);
-int tipc_send(u32 portref, unsigned int num_sect, struct iovec const *msg_sect,
-	      unsigned int total_len);
+int tipc_send(u32 portref, struct iovec const *msg_sect, unsigned int len);
 
 int tipc_send2name(u32 portref, struct tipc_name const *name, u32 domain,
-		   unsigned int num_sect, struct iovec const *msg_sect,
-		   unsigned int total_len);
+		   struct iovec const *msg_sect, unsigned int len);
 
 int tipc_send2port(u32 portref, struct tipc_portid const *dest,
-		   unsigned int num_sect, struct iovec const *msg_sect,
-		   unsigned int total_len);
+		   struct iovec const *msg_sect, unsigned int len);
 
 int tipc_multicast(u32 portref, struct tipc_name_seq const *seq,
-		   unsigned int section_count, struct iovec const *msg,
-		   unsigned int total_len);
+		   struct iovec const *msg, unsigned int len);
 
 int tipc_port_reject_sections(struct tipc_port *p_ptr, struct tipc_msg *hdr,
-			      struct iovec const *msg_sect, u32 num_sect,
-			      unsigned int total_len, int err);
+			      struct iovec const *msg_sect, unsigned int len,
+			      int err);
 struct sk_buff *tipc_port_get_ports(void);
 void tipc_port_recv_proto_msg(struct sk_buff *buf);
 void tipc_port_recv_mcast(struct sk_buff *buf, struct tipc_port_list *dp);
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 6cc7ddd2fb7c..d224382d8270 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -622,13 +622,11 @@ static int send_msg(struct kiocb *iocb, struct socket *sock,
 			res = tipc_send2name(tport->ref,
 					     &dest->addr.name.name,
 					     dest->addr.name.domain,
-					     m->msg_iovlen,
 					     m->msg_iov,
 					     total_len);
 		} else if (dest->addrtype == TIPC_ADDR_ID) {
 			res = tipc_send2port(tport->ref,
 					     &dest->addr.id,
-					     m->msg_iovlen,
 					     m->msg_iov,
 					     total_len);
 		} else if (dest->addrtype == TIPC_ADDR_MCAST) {
@@ -641,7 +639,6 @@ static int send_msg(struct kiocb *iocb, struct socket *sock,
 				break;
 			res = tipc_multicast(tport->ref,
 					     &dest->addr.nameseq,
-					     m->msg_iovlen,
 					     m->msg_iov,
 					     total_len);
 		}
@@ -707,8 +704,7 @@ static int send_packet(struct kiocb *iocb, struct socket *sock,
 			break;
 		}
 
-		res = tipc_send(tport->ref, m->msg_iovlen, m->msg_iov,
-				total_len);
+		res = tipc_send(tport->ref, m->msg_iov, total_len);
 		if (likely(res != -ELINKCONG))
 			break;
 		if (timeout_val <= 0L) {
-- 
cgit 


From 4068243208d605b046479e25c253379069a05fed Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Fri, 18 Oct 2013 07:23:16 +0200
Subject: tipc: silence sparse warnings
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Eliminate below sparse warnings:

net/tipc/link.c:1210:37: warning: cast removes address space of expression
net/tipc/link.c:1218:59: warning: incorrect type in argument 2 (different address spaces)
net/tipc/link.c:1218:59:    expected void const [noderef] <asn:1>*from
net/tipc/link.c:1218:59:    got unsigned char const [usertype] *[assigned] sect_crs
net/tipc/socket.c:341:49: warning: Using plain integer as NULL pointer
net/tipc/socket.c:1371:36: warning: Using plain integer as NULL pointer
net/tipc/socket.c:1694:57: warning: Using plain integer as NULL pointer

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Andreas Bofjäll <andreas.bofjall@ericsson.com>
Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/tipc/link.c   | 4 ++--
 net/tipc/socket.c | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/net/tipc/link.c b/net/tipc/link.c
index b02a6dc4efe4..be73a1fa7c65 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1160,7 +1160,7 @@ static int link_send_sections_long(struct tipc_port *sender,
 	struct tipc_msg fragm_hdr;
 	struct sk_buff *buf, *buf_chain, *prev;
 	u32 fragm_crs, fragm_rest, hsz, sect_rest;
-	const unchar *sect_crs;
+	const unchar __user *sect_crs;
 	int curr_sect;
 	u32 fragm_no;
 	int res = 0;
@@ -1202,7 +1202,7 @@ again:
 
 		if (!sect_rest) {
 			sect_rest = msg_sect[++curr_sect].iov_len;
-			sect_crs = (const unchar *)msg_sect[curr_sect].iov_base;
+			sect_crs = msg_sect[curr_sect].iov_base;
 		}
 
 		if (sect_rest < fragm_rest)
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index d224382d8270..3906527259d1 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -338,7 +338,7 @@ static int release(struct socket *sock)
 		buf = __skb_dequeue(&sk->sk_receive_queue);
 		if (buf == NULL)
 			break;
-		if (TIPC_SKB_CB(buf)->handle != 0)
+		if (TIPC_SKB_CB(buf)->handle != NULL)
 			kfree_skb(buf);
 		else {
 			if ((sock->state == SS_CONNECTING) ||
@@ -1364,7 +1364,7 @@ static u32 filter_rcv(struct sock *sk, struct sk_buff *buf)
 		return TIPC_ERR_OVERLOAD;
 
 	/* Enqueue message */
-	TIPC_SKB_CB(buf)->handle = 0;
+	TIPC_SKB_CB(buf)->handle = NULL;
 	__skb_queue_tail(&sk->sk_receive_queue, buf);
 	skb_set_owner_r(buf, sk);
 
@@ -1687,7 +1687,7 @@ restart:
 		/* Disconnect and send a 'FIN+' or 'FIN-' message to peer */
 		buf = __skb_dequeue(&sk->sk_receive_queue);
 		if (buf) {
-			if (TIPC_SKB_CB(buf)->handle != 0) {
+			if (TIPC_SKB_CB(buf)->handle != NULL) {
 				kfree_skb(buf);
 				goto restart;
 			}
-- 
cgit 


From 4babbaa8a1ecf1cb76de5e1635417c7472190ef5 Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Fri, 18 Oct 2013 07:23:17 +0200
Subject: tipc: make bearer and media naming consistent

TIPC 'bearer' exists as an abstract concept, while 'media'
is deemed a specific implementation of a bearer, such as Ethernet
or Infiniband media. When a component inside TIPC wants to control
a specific media, it only needs to access the generic bearer API
to achieve this. However, in the current media implementations,
the 'bearer' name is also extensively used in media specific
function and variable names.

This may create confusion, so we choose to replace the term 'bearer'
with 'media' in all function names, variable names, and prefixes
where this is what really is meant.

Note that this change is cosmetic only, and no runtime behaviour
changes are made here.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/tipc/bearer.c    |  4 ++--
 net/tipc/bearer.h    |  8 ++++----
 net/tipc/eth_media.c | 56 ++++++++++++++++++++++++++--------------------------
 net/tipc/ib_media.c  | 46 +++++++++++++++++++++---------------------
 4 files changed, 57 insertions(+), 57 deletions(-)

diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index 609c30c80816..09faa5520079 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -387,7 +387,7 @@ restart:
 
 	b_ptr = &tipc_bearers[bearer_id];
 	strcpy(b_ptr->name, name);
-	res = m_ptr->enable_bearer(b_ptr);
+	res = m_ptr->enable_media(b_ptr);
 	if (res) {
 		pr_warn("Bearer <%s> rejected, enable failure (%d)\n",
 			name, -res);
@@ -465,7 +465,7 @@ static void bearer_disable(struct tipc_bearer *b_ptr)
 	pr_info("Disabling bearer <%s>\n", b_ptr->name);
 	spin_lock_bh(&b_ptr->lock);
 	b_ptr->blocked = 1;
-	b_ptr->media->disable_bearer(b_ptr);
+	b_ptr->media->disable_media(b_ptr);
 	list_for_each_entry_safe(l_ptr, temp_l_ptr, &b_ptr->links, link_list) {
 		tipc_link_delete(l_ptr);
 	}
diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h
index 09c869adcfcf..f800e63980cf 100644
--- a/net/tipc/bearer.h
+++ b/net/tipc/bearer.h
@@ -75,8 +75,8 @@ struct tipc_bearer;
 /**
  * struct tipc_media - TIPC media information available to internal users
  * @send_msg: routine which handles buffer transmission
- * @enable_bearer: routine which enables a bearer
- * @disable_bearer: routine which disables a bearer
+ * @enable_media: routine which enables a media
+ * @disable_media: routine which disables a media
  * @addr2str: routine which converts media address to string
  * @addr2msg: routine which converts media address to protocol message area
  * @msg2addr: routine which converts media address from protocol message area
@@ -91,8 +91,8 @@ struct tipc_media {
 	int (*send_msg)(struct sk_buff *buf,
 			struct tipc_bearer *b_ptr,
 			struct tipc_media_addr *dest);
-	int (*enable_bearer)(struct tipc_bearer *b_ptr);
-	void (*disable_bearer)(struct tipc_bearer *b_ptr);
+	int (*enable_media)(struct tipc_bearer *b_ptr);
+	void (*disable_media)(struct tipc_bearer *b_ptr);
 	int (*addr2str)(struct tipc_media_addr *a, char *str_buf, int str_size);
 	int (*addr2msg)(struct tipc_media_addr *a, char *msg_area);
 	int (*msg2addr)(const struct tipc_bearer *b_ptr,
diff --git a/net/tipc/eth_media.c b/net/tipc/eth_media.c
index 40ea40cf6204..e048d491cc0b 100644
--- a/net/tipc/eth_media.c
+++ b/net/tipc/eth_media.c
@@ -2,7 +2,7 @@
  * net/tipc/eth_media.c: Ethernet bearer support for TIPC
  *
  * Copyright (c) 2001-2007, Ericsson AB
- * Copyright (c) 2005-2008, 2011, Wind River Systems
+ * Copyright (c) 2005-2008, 2011-2013, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -37,19 +37,19 @@
 #include "core.h"
 #include "bearer.h"
 
-#define MAX_ETH_BEARERS		MAX_BEARERS
+#define MAX_ETH_MEDIA		MAX_BEARERS
 
 #define ETH_ADDR_OFFSET	4	/* message header offset of MAC address */
 
 /**
- * struct eth_bearer - Ethernet bearer data structure
+ * struct eth_media - Ethernet bearer data structure
  * @bearer: ptr to associated "generic" bearer structure
  * @dev: ptr to associated Ethernet network device
  * @tipc_packet_type: used in binding TIPC to Ethernet driver
  * @setup: work item used when enabling bearer
  * @cleanup: work item used when disabling bearer
  */
-struct eth_bearer {
+struct eth_media {
 	struct tipc_bearer *bearer;
 	struct net_device *dev;
 	struct packet_type tipc_packet_type;
@@ -58,7 +58,7 @@ struct eth_bearer {
 };
 
 static struct tipc_media eth_media_info;
-static struct eth_bearer eth_bearers[MAX_ETH_BEARERS];
+static struct eth_media eth_media_array[MAX_ETH_MEDIA];
 static int eth_started;
 
 static int recv_notification(struct notifier_block *nb, unsigned long evt,
@@ -100,7 +100,7 @@ static int send_msg(struct sk_buff *buf, struct tipc_bearer *tb_ptr,
 	if (!clone)
 		return 0;
 
-	dev = ((struct eth_bearer *)(tb_ptr->usr_handle))->dev;
+	dev = ((struct eth_media *)(tb_ptr->usr_handle))->dev;
 	delta = dev->hard_header_len - skb_headroom(buf);
 
 	if ((delta > 0) &&
@@ -128,7 +128,7 @@ static int send_msg(struct sk_buff *buf, struct tipc_bearer *tb_ptr,
 static int recv_msg(struct sk_buff *buf, struct net_device *dev,
 		    struct packet_type *pt, struct net_device *orig_dev)
 {
-	struct eth_bearer *eb_ptr = (struct eth_bearer *)pt->af_packet_priv;
+	struct eth_media *eb_ptr = (struct eth_media *)pt->af_packet_priv;
 
 	if (!net_eq(dev_net(dev), &init_net)) {
 		kfree_skb(buf);
@@ -147,24 +147,24 @@ static int recv_msg(struct sk_buff *buf, struct net_device *dev,
 }
 
 /**
- * setup_bearer - setup association between Ethernet bearer and interface
+ * setup_media - setup association between Ethernet bearer and interface
  */
-static void setup_bearer(struct work_struct *work)
+static void setup_media(struct work_struct *work)
 {
-	struct eth_bearer *eb_ptr =
-		container_of(work, struct eth_bearer, setup);
+	struct eth_media *eb_ptr =
+		container_of(work, struct eth_media, setup);
 
 	dev_add_pack(&eb_ptr->tipc_packet_type);
 }
 
 /**
- * enable_bearer - attach TIPC bearer to an Ethernet interface
+ * enable_media - attach TIPC bearer to an Ethernet interface
  */
-static int enable_bearer(struct tipc_bearer *tb_ptr)
+static int enable_media(struct tipc_bearer *tb_ptr)
 {
 	struct net_device *dev;
-	struct eth_bearer *eb_ptr = &eth_bearers[0];
-	struct eth_bearer *stop = &eth_bearers[MAX_ETH_BEARERS];
+	struct eth_media *eb_ptr = &eth_media_array[0];
+	struct eth_media *stop = &eth_media_array[MAX_ETH_MEDIA];
 	char *driver_name = strchr((const char *)tb_ptr->name, ':') + 1;
 	int pending_dev = 0;
 
@@ -188,7 +188,7 @@ static int enable_bearer(struct tipc_bearer *tb_ptr)
 	eb_ptr->tipc_packet_type.func = recv_msg;
 	eb_ptr->tipc_packet_type.af_packet_priv = eb_ptr;
 	INIT_LIST_HEAD(&(eb_ptr->tipc_packet_type.list));
-	INIT_WORK(&eb_ptr->setup, setup_bearer);
+	INIT_WORK(&eb_ptr->setup, setup_media);
 	schedule_work(&eb_ptr->setup);
 
 	/* Associate TIPC bearer with Ethernet bearer */
@@ -205,14 +205,14 @@ static int enable_bearer(struct tipc_bearer *tb_ptr)
 }
 
 /**
- * cleanup_bearer - break association between Ethernet bearer and interface
+ * cleanup_media - break association between Ethernet bearer and interface
  *
  * This routine must be invoked from a work queue because it can sleep.
  */
-static void cleanup_bearer(struct work_struct *work)
+static void cleanup_media(struct work_struct *work)
 {
-	struct eth_bearer *eb_ptr =
-		container_of(work, struct eth_bearer, cleanup);
+	struct eth_media *eb_ptr =
+		container_of(work, struct eth_media, cleanup);
 
 	dev_remove_pack(&eb_ptr->tipc_packet_type);
 	dev_put(eb_ptr->dev);
@@ -220,18 +220,18 @@ static void cleanup_bearer(struct work_struct *work)
 }
 
 /**
- * disable_bearer - detach TIPC bearer from an Ethernet interface
+ * disable_media - detach TIPC bearer from an Ethernet interface
  *
  * Mark Ethernet bearer as inactive so that incoming buffers are thrown away,
  * then get worker thread to complete bearer cleanup.  (Can't do cleanup
  * here because cleanup code needs to sleep and caller holds spinlocks.)
  */
-static void disable_bearer(struct tipc_bearer *tb_ptr)
+static void disable_media(struct tipc_bearer *tb_ptr)
 {
-	struct eth_bearer *eb_ptr = (struct eth_bearer *)tb_ptr->usr_handle;
+	struct eth_media *eb_ptr = (struct eth_media *)tb_ptr->usr_handle;
 
 	eb_ptr->bearer = NULL;
-	INIT_WORK(&eb_ptr->cleanup, cleanup_bearer);
+	INIT_WORK(&eb_ptr->cleanup, cleanup_media);
 	schedule_work(&eb_ptr->cleanup);
 }
 
@@ -245,8 +245,8 @@ static int recv_notification(struct notifier_block *nb, unsigned long evt,
 			     void *ptr)
 {
 	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
-	struct eth_bearer *eb_ptr = &eth_bearers[0];
-	struct eth_bearer *stop = &eth_bearers[MAX_ETH_BEARERS];
+	struct eth_media *eb_ptr = &eth_media_array[0];
+	struct eth_media *stop = &eth_media_array[MAX_ETH_MEDIA];
 
 	if (!net_eq(dev_net(dev), &init_net))
 		return NOTIFY_DONE;
@@ -327,8 +327,8 @@ static int eth_msg2addr(const struct tipc_bearer *tb_ptr,
  */
 static struct tipc_media eth_media_info = {
 	.send_msg	= send_msg,
-	.enable_bearer	= enable_bearer,
-	.disable_bearer	= disable_bearer,
+	.enable_media	= enable_media,
+	.disable_media	= disable_media,
 	.addr2str	= eth_addr2str,
 	.addr2msg	= eth_addr2msg,
 	.msg2addr	= eth_msg2addr,
diff --git a/net/tipc/ib_media.c b/net/tipc/ib_media.c
index 9934a32bfa87..5545145ccffa 100644
--- a/net/tipc/ib_media.c
+++ b/net/tipc/ib_media.c
@@ -42,17 +42,17 @@
 #include "core.h"
 #include "bearer.h"
 
-#define MAX_IB_BEARERS		MAX_BEARERS
+#define MAX_IB_MEDIA		MAX_BEARERS
 
 /**
- * struct ib_bearer - Infiniband bearer data structure
+ * struct ib_media - Infiniband media data structure
  * @bearer: ptr to associated "generic" bearer structure
  * @dev: ptr to associated Infiniband network device
  * @tipc_packet_type: used in binding TIPC to Infiniband driver
  * @cleanup: work item used when disabling bearer
  */
 
-struct ib_bearer {
+struct ib_media {
 	struct tipc_bearer *bearer;
 	struct net_device *dev;
 	struct packet_type tipc_packet_type;
@@ -61,7 +61,7 @@ struct ib_bearer {
 };
 
 static struct tipc_media ib_media_info;
-static struct ib_bearer ib_bearers[MAX_IB_BEARERS];
+static struct ib_media ib_media_array[MAX_IB_MEDIA];
 static int ib_started;
 
 /**
@@ -93,7 +93,7 @@ static int send_msg(struct sk_buff *buf, struct tipc_bearer *tb_ptr,
 	if (!clone)
 		return 0;
 
-	dev = ((struct ib_bearer *)(tb_ptr->usr_handle))->dev;
+	dev = ((struct ib_media *)(tb_ptr->usr_handle))->dev;
 	delta = dev->hard_header_len - skb_headroom(buf);
 
 	if ((delta > 0) &&
@@ -121,7 +121,7 @@ static int send_msg(struct sk_buff *buf, struct tipc_bearer *tb_ptr,
 static int recv_msg(struct sk_buff *buf, struct net_device *dev,
 		    struct packet_type *pt, struct net_device *orig_dev)
 {
-	struct ib_bearer *ib_ptr = (struct ib_bearer *)pt->af_packet_priv;
+	struct ib_media *ib_ptr = (struct ib_media *)pt->af_packet_priv;
 
 	if (!net_eq(dev_net(dev), &init_net)) {
 		kfree_skb(buf);
@@ -142,22 +142,22 @@ static int recv_msg(struct sk_buff *buf, struct net_device *dev,
 /**
  * setup_bearer - setup association between InfiniBand bearer and interface
  */
-static void setup_bearer(struct work_struct *work)
+static void setup_media(struct work_struct *work)
 {
-	struct ib_bearer *ib_ptr =
-		container_of(work, struct ib_bearer, setup);
+	struct ib_media *ib_ptr =
+		container_of(work, struct ib_media, setup);
 
 	dev_add_pack(&ib_ptr->tipc_packet_type);
 }
 
 /**
- * enable_bearer - attach TIPC bearer to an InfiniBand interface
+ * enable_media - attach TIPC bearer to an InfiniBand interface
  */
-static int enable_bearer(struct tipc_bearer *tb_ptr)
+static int enable_media(struct tipc_bearer *tb_ptr)
 {
 	struct net_device *dev;
-	struct ib_bearer *ib_ptr = &ib_bearers[0];
-	struct ib_bearer *stop = &ib_bearers[MAX_IB_BEARERS];
+	struct ib_media *ib_ptr = &ib_media_array[0];
+	struct ib_media *stop = &ib_media_array[MAX_IB_MEDIA];
 	char *driver_name = strchr((const char *)tb_ptr->name, ':') + 1;
 	int pending_dev = 0;
 
@@ -181,7 +181,7 @@ static int enable_bearer(struct tipc_bearer *tb_ptr)
 	ib_ptr->tipc_packet_type.func = recv_msg;
 	ib_ptr->tipc_packet_type.af_packet_priv = ib_ptr;
 	INIT_LIST_HEAD(&(ib_ptr->tipc_packet_type.list));
-	INIT_WORK(&ib_ptr->setup, setup_bearer);
+	INIT_WORK(&ib_ptr->setup, setup_media);
 	schedule_work(&ib_ptr->setup);
 
 	/* Associate TIPC bearer with InfiniBand bearer */
@@ -204,8 +204,8 @@ static int enable_bearer(struct tipc_bearer *tb_ptr)
  */
 static void cleanup_bearer(struct work_struct *work)
 {
-	struct ib_bearer *ib_ptr =
-		container_of(work, struct ib_bearer, cleanup);
+	struct ib_media *ib_ptr =
+		container_of(work, struct ib_media, cleanup);
 
 	dev_remove_pack(&ib_ptr->tipc_packet_type);
 	dev_put(ib_ptr->dev);
@@ -213,15 +213,15 @@ static void cleanup_bearer(struct work_struct *work)
 }
 
 /**
- * disable_bearer - detach TIPC bearer from an InfiniBand interface
+ * disable_media - detach TIPC bearer from an InfiniBand interface
  *
  * Mark InfiniBand bearer as inactive so that incoming buffers are thrown away,
  * then get worker thread to complete bearer cleanup.  (Can't do cleanup
  * here because cleanup code needs to sleep and caller holds spinlocks.)
  */
-static void disable_bearer(struct tipc_bearer *tb_ptr)
+static void disable_media(struct tipc_bearer *tb_ptr)
 {
-	struct ib_bearer *ib_ptr = (struct ib_bearer *)tb_ptr->usr_handle;
+	struct ib_media *ib_ptr = (struct ib_media *)tb_ptr->usr_handle;
 
 	ib_ptr->bearer = NULL;
 	INIT_WORK(&ib_ptr->cleanup, cleanup_bearer);
@@ -238,8 +238,8 @@ static int recv_notification(struct notifier_block *nb, unsigned long evt,
 			     void *ptr)
 {
 	struct net_device *dev = netdev_notifier_info_to_dev(ptr);
-	struct ib_bearer *ib_ptr = &ib_bearers[0];
-	struct ib_bearer *stop = &ib_bearers[MAX_IB_BEARERS];
+	struct ib_media *ib_ptr = &ib_media_array[0];
+	struct ib_media *stop = &ib_media_array[MAX_IB_MEDIA];
 
 	if (!net_eq(dev_net(dev), &init_net))
 		return NOTIFY_DONE;
@@ -323,8 +323,8 @@ static int ib_msg2addr(const struct tipc_bearer *tb_ptr,
  */
 static struct tipc_media ib_media_info = {
 	.send_msg	= send_msg,
-	.enable_bearer	= enable_bearer,
-	.disable_bearer	= disable_bearer,
+	.enable_media	= enable_media,
+	.disable_media	= disable_media,
 	.addr2str	= ib_addr2str,
 	.addr2msg	= ib_addr2msg,
 	.msg2addr	= ib_msg2addr,
-- 
cgit 


From f2875c3cc4769d07bab3bc6e51c386840a7de280 Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Fri, 18 Oct 2013 07:23:18 +0200
Subject: tipc: avoid unnecessary lookup for tipc bearer instance

tipc_block_bearer() currently takes a bearer name (const char*)
as argument. This requires the function to make a lookup to find
the pointer to the corresponding bearer struct. In the current
code base this is not necessary, since the only two callers
(tipc_continue(),recv_notification()) already have validated
copies of this pointer, and hence can pass it directly in the
function call.

We change tipc_block_bearer() to directly take struct tipc_bearer*
as argument instead.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/tipc/bearer.c    | 14 +++-----------
 net/tipc/bearer.h    |  2 +-
 net/tipc/eth_media.c |  6 +++---
 net/tipc/ib_media.c  |  6 +++---
 4 files changed, 10 insertions(+), 18 deletions(-)

diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index 09faa5520079..3f9707a16d06 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -420,23 +420,15 @@ exit:
 }
 
 /**
- * tipc_block_bearer - Block the bearer with the given name, and reset all its links
+ * tipc_block_bearer - Block the bearer, and reset all its links
  */
-int tipc_block_bearer(const char *name)
+int tipc_block_bearer(struct tipc_bearer *b_ptr)
 {
-	struct tipc_bearer *b_ptr = NULL;
 	struct tipc_link *l_ptr;
 	struct tipc_link *temp_l_ptr;
 
 	read_lock_bh(&tipc_net_lock);
-	b_ptr = tipc_bearer_find(name);
-	if (!b_ptr) {
-		pr_warn("Attempt to block unknown bearer <%s>\n", name);
-		read_unlock_bh(&tipc_net_lock);
-		return -EINVAL;
-	}
-
-	pr_info("Blocking bearer <%s>\n", name);
+	pr_info("Blocking bearer <%s>\n", b_ptr->name);
 	spin_lock_bh(&b_ptr->lock);
 	b_ptr->blocked = 1;
 	list_for_each_entry_safe(l_ptr, temp_l_ptr, &b_ptr->links, link_list) {
diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h
index f800e63980cf..e5e04be6fffa 100644
--- a/net/tipc/bearer.h
+++ b/net/tipc/bearer.h
@@ -163,7 +163,7 @@ int tipc_register_media(struct tipc_media *m_ptr);
 
 void tipc_recv_msg(struct sk_buff *buf, struct tipc_bearer *tb_ptr);
 
-int  tipc_block_bearer(const char *name);
+int  tipc_block_bearer(struct tipc_bearer *b_ptr);
 void tipc_continue(struct tipc_bearer *tb_ptr);
 
 int tipc_enable_bearer(const char *bearer_name, u32 disc_domain, u32 priority);
diff --git a/net/tipc/eth_media.c b/net/tipc/eth_media.c
index e048d491cc0b..c36c938306a1 100644
--- a/net/tipc/eth_media.c
+++ b/net/tipc/eth_media.c
@@ -265,17 +265,17 @@ static int recv_notification(struct notifier_block *nb, unsigned long evt,
 		if (netif_carrier_ok(dev))
 			tipc_continue(eb_ptr->bearer);
 		else
-			tipc_block_bearer(eb_ptr->bearer->name);
+			tipc_block_bearer(eb_ptr->bearer);
 		break;
 	case NETDEV_UP:
 		tipc_continue(eb_ptr->bearer);
 		break;
 	case NETDEV_DOWN:
-		tipc_block_bearer(eb_ptr->bearer->name);
+		tipc_block_bearer(eb_ptr->bearer);
 		break;
 	case NETDEV_CHANGEMTU:
 	case NETDEV_CHANGEADDR:
-		tipc_block_bearer(eb_ptr->bearer->name);
+		tipc_block_bearer(eb_ptr->bearer);
 		tipc_continue(eb_ptr->bearer);
 		break;
 	case NETDEV_UNREGISTER:
diff --git a/net/tipc/ib_media.c b/net/tipc/ib_media.c
index 5545145ccffa..20b1aa464321 100644
--- a/net/tipc/ib_media.c
+++ b/net/tipc/ib_media.c
@@ -258,17 +258,17 @@ static int recv_notification(struct notifier_block *nb, unsigned long evt,
 		if (netif_carrier_ok(dev))
 			tipc_continue(ib_ptr->bearer);
 		else
-			tipc_block_bearer(ib_ptr->bearer->name);
+			tipc_block_bearer(ib_ptr->bearer);
 		break;
 	case NETDEV_UP:
 		tipc_continue(ib_ptr->bearer);
 		break;
 	case NETDEV_DOWN:
-		tipc_block_bearer(ib_ptr->bearer->name);
+		tipc_block_bearer(ib_ptr->bearer);
 		break;
 	case NETDEV_CHANGEMTU:
 	case NETDEV_CHANGEADDR:
-		tipc_block_bearer(ib_ptr->bearer->name);
+		tipc_block_bearer(ib_ptr->bearer);
 		tipc_continue(ib_ptr->bearer);
 		break;
 	case NETDEV_UNREGISTER:
-- 
cgit 


From 679815834857d5305dae108a03addccf16d86868 Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Fri, 18 Oct 2013 07:23:19 +0200
Subject: tipc: correct return value of recv_msg routine

Currently, rcv_msg() always returns zero on a packet delivery upcall
from net_device.

To make its behavior more compliant with the way this API should be
used, we change this to let it return NET_RX_SUCCESS (which is zero
anyway) when it is able to handle the packet, and NET_RX_DROP otherwise.
The latter does not imply any functional change, it only enables the
driver to keep more accurate statistics about the fate of delivered
packets.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/tipc/eth_media.c | 6 +++---
 net/tipc/ib_media.c  | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/net/tipc/eth_media.c b/net/tipc/eth_media.c
index c36c938306a1..f80d59f5a161 100644
--- a/net/tipc/eth_media.c
+++ b/net/tipc/eth_media.c
@@ -132,18 +132,18 @@ static int recv_msg(struct sk_buff *buf, struct net_device *dev,
 
 	if (!net_eq(dev_net(dev), &init_net)) {
 		kfree_skb(buf);
-		return 0;
+		return NET_RX_DROP;
 	}
 
 	if (likely(eb_ptr->bearer)) {
 		if (likely(buf->pkt_type <= PACKET_BROADCAST)) {
 			buf->next = NULL;
 			tipc_recv_msg(buf, eb_ptr->bearer);
-			return 0;
+			return NET_RX_SUCCESS;
 		}
 	}
 	kfree_skb(buf);
-	return 0;
+	return NET_RX_DROP;
 }
 
 /**
diff --git a/net/tipc/ib_media.c b/net/tipc/ib_media.c
index 20b1aa464321..c13989297464 100644
--- a/net/tipc/ib_media.c
+++ b/net/tipc/ib_media.c
@@ -125,18 +125,18 @@ static int recv_msg(struct sk_buff *buf, struct net_device *dev,
 
 	if (!net_eq(dev_net(dev), &init_net)) {
 		kfree_skb(buf);
-		return 0;
+		return NET_RX_DROP;
 	}
 
 	if (likely(ib_ptr->bearer)) {
 		if (likely(buf->pkt_type <= PACKET_BROADCAST)) {
 			buf->next = NULL;
 			tipc_recv_msg(buf, ib_ptr->bearer);
-			return 0;
+			return NET_RX_SUCCESS;
 		}
 	}
 	kfree_skb(buf);
-	return 0;
+	return NET_RX_DROP;
 }
 
 /**
-- 
cgit 


From 636c0371a737c27510df867161fb8100c2f086bd Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Fri, 18 Oct 2013 07:23:20 +0200
Subject: tipc: correct return value of link_cmd_set_value routine

link_cmd_set_value() takes commands for link, bearer and media related
configuration. Genereally the function returns 0 when a command is
recognized, and -EINVAL when it is not. However, in the switch for link
related commands it returns 0 even when the command is unrecognized. This
will sometimes make it look as if a failed configuration command has been
successful, but has otherwise no negative effects.

We remove this anomaly by returning -EINVAL even for link commands. We also
rework all three switches to make them  conforming to common kernel coding
style.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/tipc/link.c | 28 +++++++++++++++++++---------
 1 file changed, 19 insertions(+), 9 deletions(-)

diff --git a/net/tipc/link.c b/net/tipc/link.c
index be73a1fa7c65..223bbc87e451 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -2641,6 +2641,7 @@ static int link_cmd_set_value(const char *name, u32 new_value, u16 cmd)
 	struct tipc_link *l_ptr;
 	struct tipc_bearer *b_ptr;
 	struct tipc_media *m_ptr;
+	int res = 0;
 
 	l_ptr = link_find_link(name, &node);
 	if (l_ptr) {
@@ -2663,9 +2664,12 @@ static int link_cmd_set_value(const char *name, u32 new_value, u16 cmd)
 		case TIPC_CMD_SET_LINK_WINDOW:
 			tipc_link_set_queue_limits(l_ptr, new_value);
 			break;
+		default:
+			res = -EINVAL;
+			break;
 		}
 		tipc_node_unlock(node);
-		return 0;
+		return res;
 	}
 
 	b_ptr = tipc_bearer_find(name);
@@ -2673,15 +2677,18 @@ static int link_cmd_set_value(const char *name, u32 new_value, u16 cmd)
 		switch (cmd) {
 		case TIPC_CMD_SET_LINK_TOL:
 			b_ptr->tolerance = new_value;
-			return 0;
+			break;
 		case TIPC_CMD_SET_LINK_PRI:
 			b_ptr->priority = new_value;
-			return 0;
+			break;
 		case TIPC_CMD_SET_LINK_WINDOW:
 			b_ptr->window = new_value;
-			return 0;
+			break;
+		default:
+			res = -EINVAL;
+			break;
 		}
-		return -EINVAL;
+		return res;
 	}
 
 	m_ptr = tipc_media_find(name);
@@ -2690,15 +2697,18 @@ static int link_cmd_set_value(const char *name, u32 new_value, u16 cmd)
 	switch (cmd) {
 	case TIPC_CMD_SET_LINK_TOL:
 		m_ptr->tolerance = new_value;
-		return 0;
+		break;
 	case TIPC_CMD_SET_LINK_PRI:
 		m_ptr->priority = new_value;
-		return 0;
+		break;
 	case TIPC_CMD_SET_LINK_WINDOW:
 		m_ptr->window = new_value;
-		return 0;
+		break;
+	default:
+		res = -EINVAL;
+		break;
 	}
-	return -EINVAL;
+	return res;
 }
 
 struct sk_buff *tipc_link_cmd_config(const void *req_tlv_area, int req_tlv_space,
-- 
cgit 


From bbfbe47cc99ce093708aaf28b7f2c08d28045c67 Mon Sep 17 00:00:00 2001
From: Erik Hugne <erik.hugne@ericsson.com>
Date: Fri, 18 Oct 2013 07:23:21 +0200
Subject: tipc: simplify the link lookup routine

When checking statistics or changing parameters on a link, the
link_find_link function is used to locate the link with a given
name. The complex method of deconstructing the name into local
and remote address/interface is error prone and may fail if the
interface names contains special characters. We change the lookup
method to iterate over the list of nodes and compare the link
names.

Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/tipc/link.c | 110 +++++++-------------------------------------------------
 1 file changed, 13 insertions(+), 97 deletions(-)

diff --git a/net/tipc/link.c b/net/tipc/link.c
index 223bbc87e451..e8153f64d2d6 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -75,20 +75,6 @@ static const char *link_unk_evt = "Unknown link event ";
  */
 #define START_CHANGEOVER 100000u
 
-/**
- * struct tipc_link_name - deconstructed link name
- * @addr_local: network address of node at this end
- * @if_local: name of interface at this end
- * @addr_peer: network address of node at far end
- * @if_peer: name of interface at far end
- */
-struct tipc_link_name {
-	u32 addr_local;
-	char if_local[TIPC_MAX_IF_NAME];
-	u32 addr_peer;
-	char if_peer[TIPC_MAX_IF_NAME];
-};
-
 static void link_handle_out_of_seq_msg(struct tipc_link *l_ptr,
 				       struct sk_buff *buf);
 static void link_recv_proto_msg(struct tipc_link *l_ptr, struct sk_buff *buf);
@@ -159,72 +145,6 @@ int tipc_link_is_active(struct tipc_link *l_ptr)
 		(l_ptr->owner->active_links[1] == l_ptr);
 }
 
-/**
- * link_name_validate - validate & (optionally) deconstruct tipc_link name
- * @name: ptr to link name string
- * @name_parts: ptr to area for link name components (or NULL if not needed)
- *
- * Returns 1 if link name is valid, otherwise 0.
- */
-static int link_name_validate(const char *name,
-				struct tipc_link_name *name_parts)
-{
-	char name_copy[TIPC_MAX_LINK_NAME];
-	char *addr_local;
-	char *if_local;
-	char *addr_peer;
-	char *if_peer;
-	char dummy;
-	u32 z_local, c_local, n_local;
-	u32 z_peer, c_peer, n_peer;
-	u32 if_local_len;
-	u32 if_peer_len;
-
-	/* copy link name & ensure length is OK */
-	name_copy[TIPC_MAX_LINK_NAME - 1] = 0;
-	/* need above in case non-Posix strncpy() doesn't pad with nulls */
-	strncpy(name_copy, name, TIPC_MAX_LINK_NAME);
-	if (name_copy[TIPC_MAX_LINK_NAME - 1] != 0)
-		return 0;
-
-	/* ensure all component parts of link name are present */
-	addr_local = name_copy;
-	if_local = strchr(addr_local, ':');
-	if (if_local == NULL)
-		return 0;
-	*(if_local++) = 0;
-	addr_peer = strchr(if_local, '-');
-	if (addr_peer == NULL)
-		return 0;
-	*(addr_peer++) = 0;
-	if_local_len = addr_peer - if_local;
-	if_peer = strchr(addr_peer, ':');
-	if (if_peer == NULL)
-		return 0;
-	*(if_peer++) = 0;
-	if_peer_len = strlen(if_peer) + 1;
-
-	/* validate component parts of link name */
-	if ((sscanf(addr_local, "%u.%u.%u%c",
-		    &z_local, &c_local, &n_local, &dummy) != 3) ||
-	    (sscanf(addr_peer, "%u.%u.%u%c",
-		    &z_peer, &c_peer, &n_peer, &dummy) != 3) ||
-	    (z_local > 255) || (c_local > 4095) || (n_local > 4095) ||
-	    (z_peer  > 255) || (c_peer  > 4095) || (n_peer  > 4095) ||
-	    (if_local_len <= 1) || (if_local_len > TIPC_MAX_IF_NAME) ||
-	    (if_peer_len  <= 1) || (if_peer_len  > TIPC_MAX_IF_NAME))
-		return 0;
-
-	/* return link name components, if necessary */
-	if (name_parts) {
-		name_parts->addr_local = tipc_addr(z_local, c_local, n_local);
-		strcpy(name_parts->if_local, if_local);
-		name_parts->addr_peer = tipc_addr(z_peer, c_peer, n_peer);
-		strcpy(name_parts->if_peer, if_peer);
-	}
-	return 1;
-}
-
 /**
  * link_timeout - handle expiration of link timer
  * @l_ptr: pointer to link
@@ -2580,25 +2500,21 @@ void tipc_link_set_queue_limits(struct tipc_link *l_ptr, u32 window)
 static struct tipc_link *link_find_link(const char *name,
 					struct tipc_node **node)
 {
-	struct tipc_link_name link_name_parts;
-	struct tipc_bearer *b_ptr;
 	struct tipc_link *l_ptr;
+	struct tipc_node *n_ptr;
+	int i;
 
-	if (!link_name_validate(name, &link_name_parts))
-		return NULL;
-
-	b_ptr = tipc_bearer_find_interface(link_name_parts.if_local);
-	if (!b_ptr)
-		return NULL;
-
-	*node = tipc_node_find(link_name_parts.addr_peer);
-	if (!*node)
-		return NULL;
-
-	l_ptr = (*node)->links[b_ptr->identity];
-	if (!l_ptr || strcmp(l_ptr->name, name))
-		return NULL;
-
+	list_for_each_entry(n_ptr, &tipc_node_list, list) {
+		for (i = 0; i < MAX_BEARERS; i++) {
+			l_ptr = n_ptr->links[i];
+			if (l_ptr && !strcmp(l_ptr->name, name))
+				goto found;
+		}
+	}
+	l_ptr = NULL;
+	n_ptr = NULL;
+found:
+	*node = n_ptr;
 	return l_ptr;
 }
 
-- 
cgit 


From c482525659effc9fadc0cef88cffdb6f8c63d2b6 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Mon, 14 Oct 2013 11:31:43 -0700
Subject: ARM: dts: Add basic support for zoom3

I've tested serial, MMC, smsc911x and wl12xx on zoom3. As my
omap is an early ES revision, I have not been able to test
off-idle on this one. But anyways, I'd say we have enough
device tree support for the zoom to be able to drop the
board-zoom files. Patches are welcome to add further features
to this .dts file.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/Makefile              |   1 +
 arch/arm/boot/dts/omap-zoom-common.dtsi |  33 +++++
 arch/arm/boot/dts/omap3-zoom3.dts       | 217 ++++++++++++++++++++++++++++++++
 3 files changed, 251 insertions(+)
 create mode 100644 arch/arm/boot/dts/omap-zoom-common.dtsi
 create mode 100644 arch/arm/boot/dts/omap3-zoom3.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 96d8f1f50430..841cd634d95d 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -178,6 +178,7 @@ dtb-$(CONFIG_ARCH_OMAP2PLUS) += omap2420-h4.dtb \
 	omap3-gta04.dtb \
 	omap3-igep0020.dtb \
 	omap3-igep0030.dtb \
+	omap3-zoom3.dtb \
 	omap4-panda.dtb \
 	omap4-panda-a4.dtb \
 	omap4-panda-es.dtb \
diff --git a/arch/arm/boot/dts/omap-zoom-common.dtsi b/arch/arm/boot/dts/omap-zoom-common.dtsi
new file mode 100644
index 000000000000..b0ee342598f0
--- /dev/null
+++ b/arch/arm/boot/dts/omap-zoom-common.dtsi
@@ -0,0 +1,33 @@
+/*
+ * Common features on the Zoom debug board
+ */
+
+#include "omap-gpmc-smsc911x.dtsi"
+
+&gpmc {
+	ranges = <3 0 0x10000000 0x00000400>,
+		 <7 0 0x2c000000 0x01000000>;
+
+	/*
+	 * Four port TL16CP754C serial port on GPMC,
+	 * they probably share the same GPIO IRQ
+	 * REVISIT: Add timing support from slls644g.pdf
+	 */
+	8250@3,0 {
+		compatible = "ns16550a";
+		reg = <3 0 0x100>;
+		bank-width = <2>;
+		reg-shift = <1>;
+		reg-io-width = <1>;
+		interrupt-parent = <&gpio4>;
+		interrupts = <6 IRQ_TYPE_EDGE_RISING>;	/* gpio102 */
+		clock-frequency = <1843200>;
+		current-speed = <115200>;
+	};
+
+	ethernet@gpmc {
+		reg = <7 0 0xff>;
+		interrupt-parent = <&gpio5>;
+		interrupts = <30 IRQ_TYPE_LEVEL_LOW>;	/* gpio158 */
+	};
+};
diff --git a/arch/arm/boot/dts/omap3-zoom3.dts b/arch/arm/boot/dts/omap3-zoom3.dts
new file mode 100644
index 000000000000..15eb9fe5169c
--- /dev/null
+++ b/arch/arm/boot/dts/omap3-zoom3.dts
@@ -0,0 +1,217 @@
+/*
+ * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+/dts-v1/;
+
+#include "omap36xx.dtsi"
+#include "omap-zoom-common.dtsi"
+
+/ {
+	model = "TI Zoom3";
+	compatible = "ti,omap3-zoom3", "ti,omap36xx", "ti,omap3";
+
+	cpus {
+		cpu@0 {
+			cpu0-supply = <&vcc>;
+		};
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x20000000>; /* 512 MB */
+	};
+
+	vddvario: regulator-vddvario {
+		  compatible = "regulator-fixed";
+		  regulator-name = "vddvario";
+		  regulator-always-on;
+	};
+
+	vdd33a: regulator-vdd33a {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd33a";
+		regulator-always-on;
+	};
+
+	wl12xx_vmmc: wl12xx_vmmc {
+		pinctrl-names = "default";
+		pinctrl-0 = <&wl12xx_gpio>;
+		compatible = "regulator-fixed";
+		regulator-name = "vwl1271";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		gpio = <&gpio4 5 0>;	/* gpio101 */
+		startup-delay-us = <70000>;
+		enable-active-high;
+	};
+};
+
+&omap3_pmx_core {
+	/* REVISIT: twl gpio0 is mmc0_cd */
+	mmc1_pins: pinmux_mmc1_pins {
+		pinctrl-single,pins = <
+			0x114 (PIN_OUTPUT_PULLUP | MUX_MODE0)	/* sdmmc1_clk.sdmmc1_clk */
+			0x116 (PIN_OUTPUT_PULLUP | MUX_MODE0)	/* sdmmc1_cmd.sdmmc1_cmd */
+			0x118 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_dat0.sdmmc1_dat0 */
+			0x11a (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_dat1.sdmmc1_dat1 */
+			0x11c (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_dat2.sdmmc1_dat2 */
+			0x11e (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_dat3.sdmmc1_dat3 */
+		>;
+	};
+
+	mmc2_pins: pinmux_mmc2_pins {
+		pinctrl-single,pins = <
+			0x128 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_clk.sdmmc2_clk */
+			0x12a (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_cmd.sdmmc2_cmd */
+			0x12c (PIN_INPUT | MUX_MODE0)		/* sdmmc2_dat0.sdmmc2_dat0 */
+			0x12e (PIN_INPUT | MUX_MODE0)		/* sdmmc2_dat1.sdmmc2_dat1 */
+			0x130 (PIN_INPUT | MUX_MODE0)		/* sdmmc2_dat2.sdmmc2_dat2 */
+			0x132 (PIN_INPUT | MUX_MODE0)		/* sdmmc2_dat3.sdmmc2_dat3 */
+			0x134 (PIN_INPUT | MUX_MODE0)		/* sdmmc2_dat4.sdmmc2_dat4 */
+			0x136 (PIN_INPUT | MUX_MODE0)		/* sdmmc2_dat5.sdmmc2_dat5 */
+			0x138 (PIN_INPUT | MUX_MODE0)		/* sdmmc2_dat6.sdmmc2_dat6 */
+			0x13a (PIN_INPUT | MUX_MODE0)		/* sdmmc2_dat7.sdmmc2_dat7 */
+		>;
+	};
+
+	mmc3_pins: pinmux_mmc3_pins {
+		pinctrl-single,pins = <
+			0x168 (PIN_INPUT | MUX_MODE4)	/* mcbsp1_clkx.gpio_162 WLAN IRQ */
+			0x1a0 (PIN_INPUT_PULLUP | MUX_MODE3)	/* mcspi1_cs1.sdmmc3_cmd */
+			0x5a8 (PIN_INPUT_PULLUP | MUX_MODE2)	/* etk_clk.sdmmc3_clk */
+			0x5b4 (PIN_INPUT_PULLUP | MUX_MODE2)	/* etk_d4.sdmmc3_dat0 */
+			0x5b6 (WAKEUP_EN | PIN_INPUT_PULLUP | MUX_MODE2) /* etk_d5.sdmmc3_dat1 */
+			0x5b8 (PIN_INPUT_PULLUP | MUX_MODE2)	/* etk_d6.sdmmc3_dat2 */
+			0x5b2 (PIN_INPUT_PULLUP | MUX_MODE2)	/* etk_d3.sdmmc3_dat3 */
+		>;
+	};
+
+	uart1_pins: pinmux_uart1_pins {
+		pinctrl-single,pins = <
+                        0x150 (PIN_INPUT | MUX_MODE0)		/* uart1_cts.uart1_cts */
+                        0x14e (PIN_OUTPUT | MUX_MODE0)		/* uart1_rts.uart1_rts */
+                        0x152 (WAKEUP_EN | PIN_INPUT | MUX_MODE0) /* uart1_rx.uart1_rx */
+                        0x14c (PIN_OUTPUT | MUX_MODE0)		/* uart1_tx.uart1_tx */
+		>;
+	};
+
+	uart2_pins: pinmux_uart2_pins {
+		pinctrl-single,pins = <
+                        0x144 (PIN_INPUT_PULLUP | MUX_MODE0)	/* uart2_cts.uart2_cts */
+                        0x146 (PIN_OUTPUT | MUX_MODE0)		/* uart2_rts.uart2_rts */
+                        0x14a (WAKEUP_EN | PIN_INPUT | MUX_MODE0) /* uart2_rx.uart2_rx */
+                        0x148 (PIN_OUTPUT | MUX_MODE0)		/* uart2_tx.uart2_tx */
+		>;
+	};
+
+	uart3_pins: pinmux_uart3_pins {
+		pinctrl-single,pins = <
+                        0x16a (PIN_INPUT_PULLDOWN | MUX_MODE0)	/* uart3_cts_rctx.uart3_cts_rctx */
+                        0x16c (PIN_OUTPUT | MUX_MODE0)		/* uart3_rts_sd.uart3_rts_sd */
+                        0x16e (WAKEUP_EN | PIN_INPUT | MUX_MODE0) /* uart3_rx_irrx.uart3_rx_irrx */
+                        0x170 (PIN_OUTPUT | MUX_MODE0)		/* uart3_tx_irtx.uart3_tx_irtx */
+		>;
+	};
+
+	/* wl12xx GPIO output for WLAN_EN */
+	wl12xx_gpio: pinmux_wl12xx_gpio {
+		pinctrl-single,pins = <
+			0xea (PIN_OUTPUT| MUX_MODE4)		/* cam_d2.gpio_101 */
+		>;
+	};
+};
+
+&omap3_pmx_wkup {
+	wlan_host_wkup: pinmux_wlan_host_wkup_pins {
+		pinctrl-single,pins = <
+			0x1a (PIN_INPUT_PULLUP | MUX_MODE4)	/* sys_clkout1.gpio_10 WLAN_HOST_WKUP */
+		>;
+	};
+};
+
+&i2c1 {
+	clock-frequency = <2600000>;
+
+	twl: twl@48 {
+		reg = <0x48>;
+		interrupts = <7>; /* SYS_NIRQ cascaded to intc */
+		interrupt-parent = <&intc>;
+	};
+};
+
+#include "twl4030.dtsi"
+
+&i2c2 {
+	clock-frequency = <400000>;
+};
+
+&i2c3 {
+	clock-frequency = <400000>;
+
+	/*
+	 * TVP5146 Video decoder-in for analog input support.
+	 */
+	tvp5146@5c {
+		compatible = "ti,tvp5146m2";
+		reg = <0x5c>;
+	};
+};
+
+&twl_gpio {
+	ti,use-leds;
+};
+
+&mmc1 {
+	vmmc-supply = <&vmmc1>;
+	vmmc_aux-supply = <&vsim>;
+	bus-width = <4>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc1_pins>;
+};
+/*
+&mmc2 {
+	vmmc-supply = <&vmmc2>;
+	ti,non-removable;
+	bus-width = <8>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc2_pins>;
+};
+*/
+&mmc3 {
+	vmmc-supply = <&wl12xx_vmmc>;
+	non-removable;
+	bus-width = <4>;
+	cap-power-off-card;
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc3_pins>;
+};
+
+&uart1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&uart1_pins>;
+};
+
+&uart2 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&uart2_pins>;
+};
+
+&uart3 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&uart3_pins>;
+};
+
+&uart4 {
+       status = "disabled";
+};
+
+&usb_otg_hs {
+	interface-type = <0>;
+	usb-phy = <&usb2_phy>;
+	mode = <3>;
+	power = <50>;
+};
-- 
cgit 


From df01318850d5c687533c6e2460d1df65944d0d4b Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Tue, 15 Oct 2013 23:36:09 +0300
Subject: ARM: dts: add minimal DT support for Nokia N950 & N9 phones

Add minimal DT support for Nokia N950 & N9 phones. The same functionality
that is provided by the current board file should work: serial console,
USB, OneNAND and MMC.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/Makefile           |   2 +
 arch/arm/boot/dts/omap3-n9.dts       |  18 ++++
 arch/arm/boot/dts/omap3-n950-n9.dtsi | 174 +++++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/omap3-n950.dts     |  18 ++++
 4 files changed, 212 insertions(+)
 create mode 100644 arch/arm/boot/dts/omap3-n9.dts
 create mode 100644 arch/arm/boot/dts/omap3-n950-n9.dtsi
 create mode 100644 arch/arm/boot/dts/omap3-n950.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 841cd634d95d..e3a8f226bf52 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -174,6 +174,8 @@ dtb-$(CONFIG_ARCH_OMAP2PLUS) += omap2420-h4.dtb \
 	omap3-evm.dtb \
 	omap3-evm-37xx.dtb \
 	omap3-n900.dtb \
+	omap3-n9.dtb \
+	omap3-n950.dtb \
 	omap3-tobi.dtb \
 	omap3-gta04.dtb \
 	omap3-igep0020.dtb \
diff --git a/arch/arm/boot/dts/omap3-n9.dts b/arch/arm/boot/dts/omap3-n9.dts
new file mode 100644
index 000000000000..39828ce464ee
--- /dev/null
+++ b/arch/arm/boot/dts/omap3-n9.dts
@@ -0,0 +1,18 @@
+/*
+ * omap3-n9.dts - Device Tree file for Nokia N9
+ *
+ * Written by: Aaro Koskinen <aaro.koskinen@iki.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/dts-v1/;
+
+#include "omap3-n950-n9.dtsi"
+
+/ {
+	model = "Nokia N9";
+	compatible = "nokia,omap3-n9", "ti,omap3";
+};
diff --git a/arch/arm/boot/dts/omap3-n950-n9.dtsi b/arch/arm/boot/dts/omap3-n950-n9.dtsi
new file mode 100644
index 000000000000..94eb77d3b9dd
--- /dev/null
+++ b/arch/arm/boot/dts/omap3-n950-n9.dtsi
@@ -0,0 +1,174 @@
+/*
+ * omap3-n950-n9.dtsi - Device Tree file for Nokia N950 & N9 (common stuff)
+ *
+ * Written by: Aaro Koskinen <aaro.koskinen@iki.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include "omap36xx.dtsi"
+
+/ {
+	cpus {
+		cpu@0 {
+			cpu0-supply = <&vcc>;
+		};
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x40000000>; /* 1 GB */
+	};
+
+	vemmc: fixedregulator@0 {
+		compatible = "regulator-fixed";
+		regulator-name = "VEMMC";
+		regulator-min-microvolt = <2900000>;
+		regulator-max-microvolt = <2900000>;
+		gpio = <&gpio5 29 0>; /* gpio line 157 */
+		startup-delay-us = <150>;
+		enable-active-high;
+	};
+};
+
+&omap3_pmx_core {
+	mmc2_pins: pinmux_mmc2_pins {
+		pinctrl-single,pins = <
+			0x128 (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_clk */
+			0x12a (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_cmd */
+			0x12c (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_dat0 */
+			0x12e (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_dat1 */
+			0x130 (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_dat2 */
+			0x132 (PIN_INPUT_PULLUP | MUX_MODE0) /* sdmmc2_dat3 */
+		>;
+	};
+};
+
+&i2c1 {
+	clock-frequency = <2900000>;
+
+	twl: twl@48 {
+		reg = <0x48>;
+		interrupts = <7>; /* SYS_NIRQ cascaded to intc */
+		interrupt-parent = <&intc>;
+	};
+};
+
+/include/ "twl4030.dtsi"
+
+&twl {
+	compatible = "ti,twl5031";
+};
+
+&twl_gpio {
+	ti,pullups	= <0x000001>; /* BIT(0) */
+	ti,pulldowns	= <0x008106>; /* BIT(1) | BIT(2) | BIT(8) | BIT(15) */
+};
+
+&i2c2 {
+	clock-frequency = <400000>;
+};
+
+&i2c3 {
+	clock-frequency = <400000>;
+};
+
+&mmc1 {
+	status = "disabled";
+};
+
+&mmc2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc2_pins>;
+	vmmc-supply = <&vemmc>;
+	bus-width = <4>;
+	ti,non-removable;
+};
+
+&mmc3 {
+	status = "disabled";
+};
+
+&usb_otg_hs {
+	interface-type = <0>;
+	usb-phy = <&usb2_phy>;
+	phys = <&usb2_phy>;
+	phy-names = "usb2-phy";
+	mode = <3>;
+	power = <50>;
+};
+
+&gpmc {
+	ranges = <0 0 0x04000000 0x20000000>;
+
+	onenand@0,0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		reg = <0 0 0x20000000>;
+
+		gpmc,sync-read;
+		gpmc,sync-write;
+		gpmc,burst-length = <16>;
+		gpmc,burst-read;
+		gpmc,burst-wrap;
+		gpmc,burst-write;
+		gpmc,device-width = <2>;
+		gpmc,mux-add-data = <2>;
+		gpmc,cs-on-ns = <0>;
+		gpmc,cs-rd-off-ns = <87>;
+		gpmc,cs-wr-off-ns = <87>;
+		gpmc,adv-on-ns = <0>;
+		gpmc,adv-rd-off-ns = <10>;
+		gpmc,adv-wr-off-ns = <10>;
+		gpmc,oe-on-ns = <15>;
+		gpmc,oe-off-ns = <87>;
+		gpmc,we-on-ns = <0>;
+		gpmc,we-off-ns = <87>;
+		gpmc,rd-cycle-ns = <112>;
+		gpmc,wr-cycle-ns = <112>;
+		gpmc,access-ns = <81>;
+		gpmc,page-burst-access-ns = <15>;
+		gpmc,bus-turnaround-ns = <0>;
+		gpmc,cycle2cycle-delay-ns = <0>;
+		gpmc,wait-monitoring-ns = <0>;
+		gpmc,clk-activation-ns = <5>;
+		gpmc,wr-data-mux-bus-ns = <30>;
+		gpmc,wr-access-ns = <81>;
+		gpmc,sync-clk-ps = <15000>;
+
+		/*
+		 * MTD partition table corresponding to Nokia's MeeGo 1.2
+		 * Harmattan release.
+		 */
+		partition@0 {
+			label = "bootloader";
+			reg = <0x00000000 0x00100000>;
+		};
+		partition@1 {
+			label = "config";
+			reg = <0x00100000 0x002c0000>;
+		};
+		partition@2 {
+			label = "kernel";
+			reg = <0x003c0000 0x01000000>;
+		};
+		partition@3 {
+			label = "log";
+			reg = <0x013c0000 0x00200000>;
+		};
+		partition@4 {
+			label = "var";
+			reg = <0x015c0000 0x1ca40000>;
+		};
+		partition@5 {
+			label = "moslo";
+			reg = <0x1e000000 0x02000000>;
+		};
+		partition@6 {
+			label = "omap2-onenand";
+			reg = <0x00000000 0x20000000>;
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/omap3-n950.dts b/arch/arm/boot/dts/omap3-n950.dts
new file mode 100644
index 000000000000..b076a526b999
--- /dev/null
+++ b/arch/arm/boot/dts/omap3-n950.dts
@@ -0,0 +1,18 @@
+/*
+ * omap3-n950.dts - Device Tree file for Nokia N950
+ *
+ * Written by: Aaro Koskinen <aaro.koskinen@iki.fi>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/dts-v1/;
+
+#include "omap3-n950-n9.dtsi"
+
+/ {
+	model = "Nokia N950";
+	compatible = "nokia,omap3-n950", "ti,omap3";
+};
-- 
cgit 


From dfcc11ad4a4e620440475e25cf75d10c9d3bf7c2 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Mon, 14 Oct 2013 11:30:45 -0700
Subject: ARM: OMAP2: delete board-rm680

Delete board file for Nokia RM-680/RM-696 (N950/N9). DT-based booting
should be used for further development on this HW.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/Kconfig       |   7 --
 arch/arm/mach-omap2/Makefile      |   1 -
 arch/arm/mach-omap2/board-rm680.c | 167 --------------------------------------
 3 files changed, 175 deletions(-)
 delete mode 100644 arch/arm/mach-omap2/board-rm680.c

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index f6a1db112168..6850bf9f8f18 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -310,13 +310,6 @@ config MACH_NOKIA_N8X0
 	select MACH_NOKIA_N810_WIMAX
 	select OMAP_PACKAGE_ZAC
 
-config MACH_NOKIA_RM680
-	bool "Nokia N950 (RM-680) / N9 (RM-696) phones"
-	depends on ARCH_OMAP3
-	default y
-	select MACH_NOKIA_RM696
-	select OMAP_PACKAGE_CBB
-
 config MACH_NOKIA_RX51
 	bool "Nokia N900 (RX-51) phone"
 	depends on ARCH_OMAP3
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index f8d4a1b83864..1d2917b16a96 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -246,7 +246,6 @@ obj-$(CONFIG_MACH_OMAP3EVM)		+= board-omap3evm.o
 obj-$(CONFIG_MACH_OMAP3_PANDORA)	+= board-omap3pandora.o
 obj-$(CONFIG_MACH_OMAP_3430SDP)		+= board-3430sdp.o
 obj-$(CONFIG_MACH_NOKIA_N8X0)		+= board-n8x0.o
-obj-$(CONFIG_MACH_NOKIA_RM680)		+= board-rm680.o sdram-nokia.o
 obj-$(CONFIG_MACH_NOKIA_RX51)		+= board-rx51.o sdram-nokia.o
 obj-$(CONFIG_MACH_NOKIA_RX51)		+= board-rx51-peripherals.o
 obj-$(CONFIG_MACH_NOKIA_RX51)		+= board-rx51-video.o
diff --git a/arch/arm/mach-omap2/board-rm680.c b/arch/arm/mach-omap2/board-rm680.c
deleted file mode 100644
index 345e8c4b8731..000000000000
--- a/arch/arm/mach-omap2/board-rm680.c
+++ /dev/null
@@ -1,167 +0,0 @@
-/*
- * Board support file for Nokia N950 (RM-680) / N9 (RM-696).
- *
- * Copyright (C) 2010 Nokia
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/io.h>
-#include <linux/i2c.h>
-#include <linux/gpio.h>
-#include <linux/init.h>
-#include <linux/i2c/twl.h>
-#include <linux/platform_device.h>
-#include <linux/regulator/fixed.h>
-#include <linux/regulator/machine.h>
-#include <linux/regulator/consumer.h>
-#include <linux/platform_data/mtd-onenand-omap2.h>
-#include <linux/usb/phy.h>
-
-#include <asm/mach/arch.h>
-#include <asm/mach-types.h>
-
-#include "common.h"
-#include "mux.h"
-#include "gpmc.h"
-#include "mmc.h"
-#include "hsmmc.h"
-#include "sdram-nokia.h"
-#include "common-board-devices.h"
-#include "gpmc-onenand.h"
-
-static struct regulator_consumer_supply rm680_vemmc_consumers[] = {
-	REGULATOR_SUPPLY("vmmc", "omap_hsmmc.1"),
-};
-
-/* Fixed regulator for internal eMMC */
-static struct regulator_init_data rm680_vemmc = {
-	.constraints =	{
-		.name			= "rm680_vemmc",
-		.valid_modes_mask	= REGULATOR_MODE_NORMAL
-					| REGULATOR_MODE_STANDBY,
-		.valid_ops_mask		= REGULATOR_CHANGE_STATUS
-					| REGULATOR_CHANGE_MODE,
-	},
-	.num_consumer_supplies		= ARRAY_SIZE(rm680_vemmc_consumers),
-	.consumer_supplies		= rm680_vemmc_consumers,
-};
-
-static struct fixed_voltage_config rm680_vemmc_config = {
-	.supply_name		= "VEMMC",
-	.microvolts		= 2900000,
-	.gpio			= 157,
-	.startup_delay		= 150,
-	.enable_high		= 1,
-	.init_data		= &rm680_vemmc,
-};
-
-static struct platform_device rm680_vemmc_device = {
-	.name			= "reg-fixed-voltage",
-	.dev			= {
-		.platform_data	= &rm680_vemmc_config,
-	},
-};
-
-static struct platform_device *rm680_peripherals_devices[] __initdata = {
-	&rm680_vemmc_device,
-};
-
-/* TWL */
-static struct twl4030_gpio_platform_data rm680_gpio_data = {
-	.pullups		= BIT(0),
-	.pulldowns		= BIT(1) | BIT(2) | BIT(8) | BIT(15),
-};
-
-static struct twl4030_platform_data rm680_twl_data = {
-	.gpio			= &rm680_gpio_data,
-	/* add rest of the children here */
-};
-
-static void __init rm680_i2c_init(void)
-{
-	omap3_pmic_get_config(&rm680_twl_data, TWL_COMMON_PDATA_USB, 0);
-	omap_pmic_init(1, 2900, "twl5031", 7 + OMAP_INTC_START, &rm680_twl_data);
-	omap_register_i2c_bus(2, 400, NULL, 0);
-	omap_register_i2c_bus(3, 400, NULL, 0);
-}
-
-#if defined(CONFIG_MTD_ONENAND_OMAP2) || \
-	defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
-static struct omap_onenand_platform_data board_onenand_data[] = {
-	{
-		.gpio_irq	= 65,
-		.flags		= ONENAND_SYNC_READWRITE,
-	}
-};
-#endif
-
-/* eMMC */
-static struct omap2_hsmmc_info mmc[] __initdata = {
-	{
-		.name		= "internal",
-		.mmc		= 2,
-		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_MMC_HIGHSPEED,
-		.gpio_cd	= -EINVAL,
-		.gpio_wp	= -EINVAL,
-	},
-	{ /* Terminator */ }
-};
-
-static void __init rm680_peripherals_init(void)
-{
-	platform_add_devices(rm680_peripherals_devices,
-				ARRAY_SIZE(rm680_peripherals_devices));
-	rm680_i2c_init();
-	gpmc_onenand_init(board_onenand_data);
-	omap_hsmmc_init(mmc);
-}
-
-#ifdef CONFIG_OMAP_MUX
-static struct omap_board_mux board_mux[] __initdata = {
-	{ .reg_offset = OMAP_MUX_TERMINATOR },
-};
-#endif
-
-static void __init rm680_init(void)
-{
-	struct omap_sdrc_params *sdrc_params;
-
-	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
-	omap_serial_init();
-
-	sdrc_params = nokia_get_sdram_timings();
-	omap_sdrc_init(sdrc_params, sdrc_params);
-
-	usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
-	usb_musb_init(NULL);
-	rm680_peripherals_init();
-}
-
-MACHINE_START(NOKIA_RM680, "Nokia RM-680 board")
-	.atag_offset	= 0x100,
-	.reserve	= omap_reserve,
-	.map_io		= omap3_map_io,
-	.init_early	= omap3630_init_early,
-	.init_irq	= omap3_init_irq,
-	.handle_irq	= omap3_intc_handle_irq,
-	.init_machine	= rm680_init,
-	.init_late	= omap3630_init_late,
-	.init_time	= omap3_sync32k_timer_init,
-	.restart	= omap3xxx_restart,
-MACHINE_END
-
-MACHINE_START(NOKIA_RM696, "Nokia RM-696 board")
-	.atag_offset	= 0x100,
-	.reserve	= omap_reserve,
-	.map_io		= omap3_map_io,
-	.init_early	= omap3630_init_early,
-	.init_irq	= omap3_init_irq,
-	.handle_irq	= omap3_intc_handle_irq,
-	.init_machine	= rm680_init,
-	.init_late	= omap3630_init_late,
-	.init_time	= omap3_sync32k_timer_init,
-	.restart	= omap3xxx_restart,
-MACHINE_END
-- 
cgit 


From 95807689eab8441737572d1a9daaa1025429a908 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Mon, 14 Oct 2013 11:31:43 -0700
Subject: ARM: OMAP2+: Remove legacy booting support for omap3 EVM

We now have pretty decent support with the device tree
based booting. Patches to add more features are welcome.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/Kconfig          |   6 -
 arch/arm/mach-omap2/Makefile         |   1 -
 arch/arm/mach-omap2/board-omap3evm.c | 756 -----------------------------------
 3 files changed, 763 deletions(-)
 delete mode 100644 arch/arm/mach-omap2/board-omap3evm.c

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 6850bf9f8f18..fbd730d895cf 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -256,12 +256,6 @@ config MACH_OVERO
 	default y
 	select OMAP_PACKAGE_CBB
 
-config MACH_OMAP3EVM
-	bool "OMAP 3530 EVM board"
-	depends on ARCH_OMAP3
-	default y
-	select OMAP_PACKAGE_CBB
-
 config MACH_OMAP3517EVM
 	bool "OMAP3517/ AM3517 EVM board"
 	depends on ARCH_OMAP3
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 1d2917b16a96..f8db40d1f1c2 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -242,7 +242,6 @@ obj-$(CONFIG_MACH_OMAP_LDP)		+= board-ldp.o
 obj-$(CONFIG_MACH_OMAP3530_LV_SOM)      += board-omap3logic.o
 obj-$(CONFIG_MACH_OMAP3_TORPEDO)        += board-omap3logic.o
 obj-$(CONFIG_MACH_OVERO)		+= board-overo.o
-obj-$(CONFIG_MACH_OMAP3EVM)		+= board-omap3evm.o
 obj-$(CONFIG_MACH_OMAP3_PANDORA)	+= board-omap3pandora.o
 obj-$(CONFIG_MACH_OMAP_3430SDP)		+= board-3430sdp.o
 obj-$(CONFIG_MACH_NOKIA_N8X0)		+= board-n8x0.o
diff --git a/arch/arm/mach-omap2/board-omap3evm.c b/arch/arm/mach-omap2/board-omap3evm.c
deleted file mode 100644
index 18143873346c..000000000000
--- a/arch/arm/mach-omap2/board-omap3evm.c
+++ /dev/null
@@ -1,756 +0,0 @@
-/*
- * linux/arch/arm/mach-omap2/board-omap3evm.c
- *
- * Copyright (C) 2008 Texas Instruments
- *
- * Modified from mach-omap2/board-3430sdp.c
- *
- * Initial code: Syed Mohammed Khasim
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/clk.h>
-#include <linux/gpio.h>
-#include <linux/input.h>
-#include <linux/input/matrix_keypad.h>
-#include <linux/leds.h>
-#include <linux/interrupt.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/partitions.h>
-#include <linux/mtd/nand.h>
-
-#include <linux/spi/spi.h>
-#include <linux/spi/ads7846.h>
-#include <linux/i2c/twl.h>
-#include <linux/usb/otg.h>
-#include <linux/usb/musb.h>
-#include <linux/usb/usb_phy_gen_xceiv.h>
-#include <linux/smsc911x.h>
-
-#include <linux/wl12xx.h>
-#include <linux/regulator/fixed.h>
-#include <linux/regulator/machine.h>
-#include <linux/mmc/host.h>
-#include <linux/export.h>
-#include <linux/usb/phy.h>
-
-#include <asm/mach-types.h>
-#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-
-#include <linux/platform_data/mtd-nand-omap2.h>
-#include "common.h"
-#include <linux/platform_data/spi-omap2-mcspi.h>
-#include <video/omapdss.h>
-#include <video/omap-panel-data.h>
-
-#include "soc.h"
-#include "mux.h"
-#include "sdram-micron-mt46h32m32lf-6.h"
-#include "hsmmc.h"
-#include "common-board-devices.h"
-#include "board-flash.h"
-
-#define	NAND_CS			0
-
-#define OMAP3_EVM_TS_GPIO	175
-#define OMAP3_EVM_EHCI_VBUS	22
-#define OMAP3_EVM_EHCI_SELECT	61
-
-#define OMAP3EVM_ETHR_START	0x2c000000
-#define OMAP3EVM_ETHR_SIZE	1024
-#define OMAP3EVM_ETHR_ID_REV	0x50
-#define OMAP3EVM_ETHR_GPIO_IRQ	176
-#define OMAP3EVM_SMSC911X_CS	5
-/*
- * Eth Reset signal
- *	64 = Generation 1 (<=RevD)
- *	7 = Generation 2 (>=RevE)
- */
-#define OMAP3EVM_GEN1_ETHR_GPIO_RST	64
-#define OMAP3EVM_GEN2_ETHR_GPIO_RST	7
-
-/*
- * OMAP35x EVM revision
- * Run time detection of EVM revision is done by reading Ethernet
- * PHY ID -
- *	GEN_1	= 0x01150000
- *	GEN_2	= 0x92200000
- */
-enum {
-	OMAP3EVM_BOARD_GEN_1 = 0,	/* EVM Rev between  A - D */
-	OMAP3EVM_BOARD_GEN_2,		/* EVM Rev >= Rev E */
-};
-
-static u8 omap3_evm_version;
-
-static u8 get_omap3_evm_rev(void)
-{
-	return omap3_evm_version;
-}
-
-static void __init omap3_evm_get_revision(void)
-{
-	void __iomem *ioaddr;
-	unsigned int smsc_id;
-
-	/* Ethernet PHY ID is stored at ID_REV register */
-	ioaddr = ioremap_nocache(OMAP3EVM_ETHR_START, SZ_1K);
-	if (!ioaddr)
-		return;
-	smsc_id = readl(ioaddr + OMAP3EVM_ETHR_ID_REV) & 0xFFFF0000;
-	iounmap(ioaddr);
-
-	switch (smsc_id) {
-	/*SMSC9115 chipset*/
-	case 0x01150000:
-		omap3_evm_version = OMAP3EVM_BOARD_GEN_1;
-		break;
-	/*SMSC 9220 chipset*/
-	case 0x92200000:
-	default:
-		omap3_evm_version = OMAP3EVM_BOARD_GEN_2;
-	}
-}
-
-#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
-#include "gpmc-smsc911x.h"
-
-static struct omap_smsc911x_platform_data smsc911x_cfg = {
-	.cs             = OMAP3EVM_SMSC911X_CS,
-	.gpio_irq       = OMAP3EVM_ETHR_GPIO_IRQ,
-	.gpio_reset     = -EINVAL,
-	.flags		= SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
-};
-
-static inline void __init omap3evm_init_smsc911x(void)
-{
-	/* Configure ethernet controller reset gpio */
-	if (cpu_is_omap3430()) {
-		if (get_omap3_evm_rev() == OMAP3EVM_BOARD_GEN_1)
-			smsc911x_cfg.gpio_reset = OMAP3EVM_GEN1_ETHR_GPIO_RST;
-		else
-			smsc911x_cfg.gpio_reset = OMAP3EVM_GEN2_ETHR_GPIO_RST;
-	}
-
-	gpmc_smsc911x_init(&smsc911x_cfg);
-}
-
-#else
-static inline void __init omap3evm_init_smsc911x(void) { return; }
-#endif
-
-/*
- * OMAP3EVM LCD Panel control signals
- */
-#define OMAP3EVM_LCD_PANEL_LR		2
-#define OMAP3EVM_LCD_PANEL_UD		3
-#define OMAP3EVM_LCD_PANEL_INI		152
-#define OMAP3EVM_LCD_PANEL_QVGA		154
-#define OMAP3EVM_LCD_PANEL_RESB		155
-
-#define OMAP3EVM_LCD_PANEL_ENVDD	153
-#define OMAP3EVM_LCD_PANEL_BKLIGHT_GPIO	210
-
-/*
- * OMAP3EVM DVI control signals
- */
-#define OMAP3EVM_DVI_PANEL_EN_GPIO	199
-
-#ifdef CONFIG_BROKEN
-static void __init omap3_evm_display_init(void)
-{
-	int r;
-
-	r = gpio_request_one(OMAP3EVM_LCD_PANEL_ENVDD, GPIOF_OUT_INIT_LOW,
-				"lcd_panel_envdd");
-	if (r)
-		pr_err("failed to get lcd_panel_envdd GPIO\n");
-
-	r = gpio_request_one(OMAP3EVM_LCD_PANEL_BKLIGHT_GPIO,
-				GPIOF_OUT_INIT_LOW, "lcd_panel_bklight");
-	if (r)
-		pr_err("failed to get lcd_panel_bklight GPIO\n");
-
-	if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2)
-		gpio_set_value_cansleep(OMAP3EVM_LCD_PANEL_BKLIGHT_GPIO, 0);
-	else
-		gpio_set_value_cansleep(OMAP3EVM_LCD_PANEL_BKLIGHT_GPIO, 1);
-}
-#endif
-
-static struct panel_sharp_ls037v7dw01_platform_data omap3_evm_lcd_pdata = {
-	.name                   = "lcd",
-	.source                 = "dpi.0",
-
-	.data_lines		= 18,
-
-	.resb_gpio		= OMAP3EVM_LCD_PANEL_RESB,
-	.ini_gpio		= OMAP3EVM_LCD_PANEL_INI,
-	.mo_gpio		= OMAP3EVM_LCD_PANEL_QVGA,
-	.lr_gpio		= OMAP3EVM_LCD_PANEL_LR,
-	.ud_gpio		= OMAP3EVM_LCD_PANEL_UD,
-};
-
-static struct platform_device omap3_evm_lcd_device = {
-	.name                   = "panel-sharp-ls037v7dw01",
-	.id                     = 0,
-	.dev.platform_data      = &omap3_evm_lcd_pdata,
-};
-
-static struct connector_dvi_platform_data omap3_evm_dvi_connector_pdata = {
-	.name                   = "dvi",
-	.source                 = "tfp410.0",
-	.i2c_bus_num            = -1,
-};
-
-static struct platform_device omap3_evm_dvi_connector_device = {
-	.name                   = "connector-dvi",
-	.id                     = 0,
-	.dev.platform_data      = &omap3_evm_dvi_connector_pdata,
-};
-
-static struct encoder_tfp410_platform_data omap3_evm_tfp410_pdata = {
-	.name                   = "tfp410.0",
-	.source                 = "dpi.0",
-	.data_lines             = 24,
-	.power_down_gpio        = OMAP3EVM_DVI_PANEL_EN_GPIO,
-};
-
-static struct platform_device omap3_evm_tfp410_device = {
-	.name                   = "tfp410",
-	.id                     = 0,
-	.dev.platform_data      = &omap3_evm_tfp410_pdata,
-};
-
-static struct connector_atv_platform_data omap3_evm_tv_pdata = {
-	.name = "tv",
-	.source = "venc.0",
-	.connector_type = OMAP_DSS_VENC_TYPE_SVIDEO,
-	.invert_polarity = false,
-};
-
-static struct platform_device omap3_evm_tv_connector_device = {
-	.name                   = "connector-analog-tv",
-	.id                     = 0,
-	.dev.platform_data      = &omap3_evm_tv_pdata,
-};
-
-static struct omap_dss_board_info omap3_evm_dss_data = {
-	.default_display_name = "lcd",
-};
-
-static struct regulator_consumer_supply omap3evm_vmmc1_supply[] = {
-	REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
-};
-
-static struct regulator_consumer_supply omap3evm_vsim_supply[] = {
-	REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
-};
-
-/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
-static struct regulator_init_data omap3evm_vmmc1 = {
-	.constraints = {
-		.min_uV			= 1850000,
-		.max_uV			= 3150000,
-		.valid_modes_mask	= REGULATOR_MODE_NORMAL
-					| REGULATOR_MODE_STANDBY,
-		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
-					| REGULATOR_CHANGE_MODE
-					| REGULATOR_CHANGE_STATUS,
-	},
-	.num_consumer_supplies	= ARRAY_SIZE(omap3evm_vmmc1_supply),
-	.consumer_supplies	= omap3evm_vmmc1_supply,
-};
-
-/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
-static struct regulator_init_data omap3evm_vsim = {
-	.constraints = {
-		.min_uV			= 1800000,
-		.max_uV			= 3000000,
-		.valid_modes_mask	= REGULATOR_MODE_NORMAL
-					| REGULATOR_MODE_STANDBY,
-		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
-					| REGULATOR_CHANGE_MODE
-					| REGULATOR_CHANGE_STATUS,
-	},
-	.num_consumer_supplies	= ARRAY_SIZE(omap3evm_vsim_supply),
-	.consumer_supplies	= omap3evm_vsim_supply,
-};
-
-static struct omap2_hsmmc_info mmc[] = {
-	{
-		.mmc		= 1,
-		.caps		= MMC_CAP_4_BIT_DATA,
-		.gpio_cd	= -EINVAL,
-		.gpio_wp	= 63,
-		.deferred	= true,
-	},
-#ifdef CONFIG_WILINK_PLATFORM_DATA
-	{
-		.name		= "wl1271",
-		.mmc		= 2,
-		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
-		.gpio_wp	= -EINVAL,
-		.gpio_cd	= -EINVAL,
-		.nonremovable	= true,
-	},
-#endif
-	{}	/* Terminator */
-};
-
-static struct gpio_led gpio_leds[] = {
-	{
-		.name			= "omap3evm::ledb",
-		/* normally not visible (board underside) */
-		.default_trigger	= "default-on",
-		.gpio			= -EINVAL,	/* gets replaced */
-		.active_low		= true,
-	},
-};
-
-static struct gpio_led_platform_data gpio_led_info = {
-	.leds		= gpio_leds,
-	.num_leds	= ARRAY_SIZE(gpio_leds),
-};
-
-static struct platform_device leds_gpio = {
-	.name	= "leds-gpio",
-	.id	= -1,
-	.dev	= {
-		.platform_data	= &gpio_led_info,
-	},
-};
-
-
-static int omap3evm_twl_gpio_setup(struct device *dev,
-		unsigned gpio, unsigned ngpio)
-{
-	int r, lcd_bl_en;
-
-	/* gpio + 0 is "mmc0_cd" (input/IRQ) */
-	mmc[0].gpio_cd = gpio + 0;
-	omap_hsmmc_late_init(mmc);
-
-	/*
-	 * Most GPIOs are for USB OTG.  Some are mostly sent to
-	 * the P2 connector; notably LEDA for the LCD backlight.
-	 */
-
-	/* TWL4030_GPIO_MAX + 0 == ledA, LCD Backlight control */
-	lcd_bl_en = get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2 ?
-		GPIOF_OUT_INIT_HIGH : GPIOF_OUT_INIT_LOW;
-	r = gpio_request_one(gpio + TWL4030_GPIO_MAX, lcd_bl_en, "EN_LCD_BKL");
-	if (r)
-		printk(KERN_ERR "failed to get/set lcd_bkl gpio\n");
-
-	/* gpio + 7 == DVI Enable */
-	gpio_request_one(gpio + 7, GPIOF_OUT_INIT_LOW, "EN_DVI");
-
-	/* TWL4030_GPIO_MAX + 1 == ledB (out, active low LED) */
-	gpio_leds[0].gpio = gpio + TWL4030_GPIO_MAX + 1;
-
-	platform_device_register(&leds_gpio);
-
-	/* Enable VBUS switch by setting TWL4030.GPIO2DIR as output
-	 * for starting USB tranceiver
-	 */
-#ifdef CONFIG_TWL4030_CORE
-	if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2) {
-		u8 val;
-
-		twl_i2c_read_u8(TWL4030_MODULE_GPIO, &val, REG_GPIODATADIR1);
-		val |= 0x04; /* TWL4030.GPIO2DIR BIT at GPIODATADIR1(0x9B) */
-		twl_i2c_write_u8(TWL4030_MODULE_GPIO, val, REG_GPIODATADIR1);
-	}
-#endif
-
-	return 0;
-}
-
-static struct twl4030_gpio_platform_data omap3evm_gpio_data = {
-	.use_leds	= true,
-	.setup		= omap3evm_twl_gpio_setup,
-};
-
-static uint32_t board_keymap[] = {
-	KEY(0, 0, KEY_LEFT),
-	KEY(0, 1, KEY_DOWN),
-	KEY(0, 2, KEY_ENTER),
-	KEY(0, 3, KEY_M),
-
-	KEY(1, 0, KEY_RIGHT),
-	KEY(1, 1, KEY_UP),
-	KEY(1, 2, KEY_I),
-	KEY(1, 3, KEY_N),
-
-	KEY(2, 0, KEY_A),
-	KEY(2, 1, KEY_E),
-	KEY(2, 2, KEY_J),
-	KEY(2, 3, KEY_O),
-
-	KEY(3, 0, KEY_B),
-	KEY(3, 1, KEY_F),
-	KEY(3, 2, KEY_K),
-	KEY(3, 3, KEY_P)
-};
-
-static struct matrix_keymap_data board_map_data = {
-	.keymap			= board_keymap,
-	.keymap_size		= ARRAY_SIZE(board_keymap),
-};
-
-static struct twl4030_keypad_data omap3evm_kp_data = {
-	.keymap_data	= &board_map_data,
-	.rows		= 4,
-	.cols		= 4,
-	.rep		= 1,
-};
-
-/* ads7846 on SPI */
-static struct regulator_consumer_supply omap3evm_vio_supply[] = {
-	REGULATOR_SUPPLY("vcc", "spi1.0"),
-};
-
-/* VIO for ads7846 */
-static struct regulator_init_data omap3evm_vio = {
-	.constraints = {
-		.min_uV			= 1800000,
-		.max_uV			= 1800000,
-		.apply_uV		= true,
-		.valid_modes_mask	= REGULATOR_MODE_NORMAL
-					| REGULATOR_MODE_STANDBY,
-		.valid_ops_mask		= REGULATOR_CHANGE_MODE
-					| REGULATOR_CHANGE_STATUS,
-	},
-	.num_consumer_supplies	= ARRAY_SIZE(omap3evm_vio_supply),
-	.consumer_supplies	= omap3evm_vio_supply,
-};
-
-#ifdef CONFIG_WILINK_PLATFORM_DATA
-
-#define OMAP3EVM_WLAN_PMENA_GPIO	(150)
-#define OMAP3EVM_WLAN_IRQ_GPIO		(149)
-
-static struct regulator_consumer_supply omap3evm_vmmc2_supply[] = {
-	REGULATOR_SUPPLY("vmmc", "omap_hsmmc.1"),
-};
-
-/* VMMC2 for driving the WL12xx module */
-static struct regulator_init_data omap3evm_vmmc2 = {
-	.constraints = {
-		.valid_ops_mask	= REGULATOR_CHANGE_STATUS,
-	},
-	.num_consumer_supplies	= ARRAY_SIZE(omap3evm_vmmc2_supply),
-	.consumer_supplies	= omap3evm_vmmc2_supply,
-};
-
-static struct fixed_voltage_config omap3evm_vwlan = {
-	.supply_name		= "vwl1271",
-	.microvolts		= 1800000, /* 1.80V */
-	.gpio			= OMAP3EVM_WLAN_PMENA_GPIO,
-	.startup_delay		= 70000, /* 70ms */
-	.enable_high		= 1,
-	.enabled_at_boot	= 0,
-	.init_data		= &omap3evm_vmmc2,
-};
-
-static struct platform_device omap3evm_wlan_regulator = {
-	.name		= "reg-fixed-voltage",
-	.id		= 1,
-	.dev = {
-		.platform_data	= &omap3evm_vwlan,
-	},
-};
-
-struct wl12xx_platform_data omap3evm_wlan_data __initdata = {
-	.board_ref_clock = WL12XX_REFCLOCK_38, /* 38.4 MHz */
-};
-#endif
-
-/* VAUX2 for USB */
-static struct regulator_consumer_supply omap3evm_vaux2_supplies[] = {
-	REGULATOR_SUPPLY("VDD_CSIPHY1", "omap3isp"),	/* OMAP ISP */
-	REGULATOR_SUPPLY("VDD_CSIPHY2", "omap3isp"),	/* OMAP ISP */
-	REGULATOR_SUPPLY("vcc", "usb_phy_gen_xceiv.2"),	/* hsusb port 2 */
-	REGULATOR_SUPPLY("vaux2", NULL),
-};
-
-static struct regulator_init_data omap3evm_vaux2 = {
-	.constraints = {
-		.min_uV		= 2800000,
-		.max_uV		= 2800000,
-		.apply_uV	= true,
-		.valid_modes_mask	= REGULATOR_MODE_NORMAL
-					| REGULATOR_MODE_STANDBY,
-		.valid_ops_mask		= REGULATOR_CHANGE_MODE
-					| REGULATOR_CHANGE_STATUS,
-	},
-	.num_consumer_supplies		= ARRAY_SIZE(omap3evm_vaux2_supplies),
-	.consumer_supplies		= omap3evm_vaux2_supplies,
-};
-
-static struct twl4030_platform_data omap3evm_twldata = {
-	/* platform_data for children goes here */
-	.keypad		= &omap3evm_kp_data,
-	.gpio		= &omap3evm_gpio_data,
-	.vio		= &omap3evm_vio,
-	.vmmc1		= &omap3evm_vmmc1,
-	.vsim		= &omap3evm_vsim,
-};
-
-static int __init omap3_evm_i2c_init(void)
-{
-	omap3_pmic_get_config(&omap3evm_twldata,
-			TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_MADC |
-			TWL_COMMON_PDATA_AUDIO,
-			TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
-
-	omap3evm_twldata.vdac->constraints.apply_uV = true;
-	omap3evm_twldata.vpll2->constraints.apply_uV = true;
-
-	omap3_pmic_init("twl4030", &omap3evm_twldata);
-	omap_register_i2c_bus(2, 400, NULL, 0);
-	omap_register_i2c_bus(3, 400, NULL, 0);
-	return 0;
-}
-
-static struct usbhs_phy_data phy_data[] __initdata = {
-	{
-		.port = 2,
-		.reset_gpio = -1,	/* set at runtime */
-		.vcc_gpio = -EINVAL,
-	},
-};
-
-static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
-	.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
-};
-
-#ifdef CONFIG_OMAP_MUX
-static struct omap_board_mux omap35x_board_mux[] __initdata = {
-	OMAP3_MUX(SYS_NIRQ, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP |
-				OMAP_PIN_OFF_INPUT_PULLUP | OMAP_PIN_OFF_OUTPUT_LOW |
-				OMAP_PIN_OFF_WAKEUPENABLE),
-	OMAP3_MUX(MCSPI1_CS1, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLUP |
-				OMAP_PIN_OFF_INPUT_PULLUP | OMAP_PIN_OFF_OUTPUT_LOW |
-				OMAP_PIN_OFF_WAKEUPENABLE),
-	OMAP3_MUX(SYS_BOOT5, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLUP |
-				OMAP_PIN_OFF_NONE),
-	OMAP3_MUX(GPMC_WAIT2, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLUP |
-				OMAP_PIN_OFF_NONE),
-#ifdef CONFIG_WILINK_PLATFORM_DATA
-	/* WLAN IRQ - GPIO 149 */
-	OMAP3_MUX(UART1_RTS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
-
-	/* WLAN POWER ENABLE - GPIO 150 */
-	OMAP3_MUX(UART1_CTS, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
-
-	/* MMC2 SDIO pin muxes for WL12xx */
-	OMAP3_MUX(SDMMC2_CLK, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
-	OMAP3_MUX(SDMMC2_CMD, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
-	OMAP3_MUX(SDMMC2_DAT0, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
-	OMAP3_MUX(SDMMC2_DAT1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
-	OMAP3_MUX(SDMMC2_DAT2, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
-	OMAP3_MUX(SDMMC2_DAT3, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
-#endif
-	{ .reg_offset = OMAP_MUX_TERMINATOR },
-};
-
-static struct omap_board_mux omap36x_board_mux[] __initdata = {
-	OMAP3_MUX(SYS_NIRQ, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP |
-				OMAP_PIN_OFF_INPUT_PULLUP | OMAP_PIN_OFF_OUTPUT_LOW |
-				OMAP_PIN_OFF_WAKEUPENABLE),
-	OMAP3_MUX(MCSPI1_CS1, OMAP_MUX_MODE4 | OMAP_PIN_INPUT_PULLUP |
-				OMAP_PIN_OFF_INPUT_PULLUP | OMAP_PIN_OFF_OUTPUT_LOW |
-				OMAP_PIN_OFF_WAKEUPENABLE),
-	/* AM/DM37x EVM: DSS data bus muxed with sys_boot */
-	OMAP3_MUX(DSS_DATA18, OMAP_MUX_MODE3 | OMAP_PIN_OFF_NONE),
-	OMAP3_MUX(DSS_DATA19, OMAP_MUX_MODE3 | OMAP_PIN_OFF_NONE),
-	OMAP3_MUX(DSS_DATA22, OMAP_MUX_MODE3 | OMAP_PIN_OFF_NONE),
-	OMAP3_MUX(DSS_DATA21, OMAP_MUX_MODE3 | OMAP_PIN_OFF_NONE),
-	OMAP3_MUX(DSS_DATA22, OMAP_MUX_MODE3 | OMAP_PIN_OFF_NONE),
-	OMAP3_MUX(DSS_DATA23, OMAP_MUX_MODE3 | OMAP_PIN_OFF_NONE),
-	OMAP3_MUX(SYS_BOOT0, OMAP_MUX_MODE3 | OMAP_PIN_OFF_NONE),
-	OMAP3_MUX(SYS_BOOT1, OMAP_MUX_MODE3 | OMAP_PIN_OFF_NONE),
-	OMAP3_MUX(SYS_BOOT3, OMAP_MUX_MODE3 | OMAP_PIN_OFF_NONE),
-	OMAP3_MUX(SYS_BOOT4, OMAP_MUX_MODE3 | OMAP_PIN_OFF_NONE),
-	OMAP3_MUX(SYS_BOOT5, OMAP_MUX_MODE3 | OMAP_PIN_OFF_NONE),
-	OMAP3_MUX(SYS_BOOT6, OMAP_MUX_MODE3 | OMAP_PIN_OFF_NONE),
-#ifdef CONFIG_WILINK_PLATFORM_DATA
-	/* WLAN IRQ - GPIO 149 */
-	OMAP3_MUX(UART1_RTS, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
-
-	/* WLAN POWER ENABLE - GPIO 150 */
-	OMAP3_MUX(UART1_CTS, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
-
-	/* MMC2 SDIO pin muxes for WL12xx */
-	OMAP3_MUX(SDMMC2_CLK, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
-	OMAP3_MUX(SDMMC2_CMD, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
-	OMAP3_MUX(SDMMC2_DAT0, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
-	OMAP3_MUX(SDMMC2_DAT1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
-	OMAP3_MUX(SDMMC2_DAT2, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
-	OMAP3_MUX(SDMMC2_DAT3, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
-#endif
-
-	{ .reg_offset = OMAP_MUX_TERMINATOR },
-};
-#else
-#define omap35x_board_mux	NULL
-#define omap36x_board_mux	NULL
-#endif
-
-static struct omap_musb_board_data musb_board_data = {
-	.interface_type		= MUSB_INTERFACE_ULPI,
-	.mode			= MUSB_OTG,
-	.power			= 100,
-};
-
-static struct gpio omap3_evm_ehci_gpios[] __initdata = {
-	{ OMAP3_EVM_EHCI_VBUS,	 GPIOF_OUT_INIT_HIGH,  "enable EHCI VBUS" },
-	{ OMAP3_EVM_EHCI_SELECT, GPIOF_OUT_INIT_LOW,   "select EHCI port" },
-};
-
-static void __init omap3_evm_wl12xx_init(void)
-{
-#ifdef CONFIG_WILINK_PLATFORM_DATA
-	int ret;
-
-	/* WL12xx WLAN Init */
-	omap3evm_wlan_data.irq = gpio_to_irq(OMAP3EVM_WLAN_IRQ_GPIO);
-	ret = wl12xx_set_platform_data(&omap3evm_wlan_data);
-	if (ret)
-		pr_err("error setting wl12xx data: %d\n", ret);
-	ret = platform_device_register(&omap3evm_wlan_regulator);
-	if (ret)
-		pr_err("error registering wl12xx device: %d\n", ret);
-#endif
-}
-
-static struct regulator_consumer_supply dummy_supplies[] = {
-	REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
-	REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
-};
-
-static struct mtd_partition omap3evm_nand_partitions[] = {
-	/* All the partition sizes are listed in terms of NAND block size */
-	{
-		.name           = "X-Loader",
-		.offset         = 0,
-		.size           = 4*(SZ_128K),
-		.mask_flags     = MTD_WRITEABLE
-	},
-	{
-		.name           = "U-Boot",
-		.offset         = MTDPART_OFS_APPEND,
-		.size           = 14*(SZ_128K),
-		.mask_flags     = MTD_WRITEABLE
-	},
-	{
-		.name           = "U-Boot Env",
-		.offset         = MTDPART_OFS_APPEND,
-		.size           = 2*(SZ_128K)
-	},
-	{
-		.name           = "Kernel",
-		.offset         = MTDPART_OFS_APPEND,
-		.size           = 40*(SZ_128K)
-	},
-	{
-		.name           = "File system",
-		.size           = MTDPART_SIZ_FULL,
-		.offset         = MTDPART_OFS_APPEND,
-	},
-};
-
-static void __init omap3_evm_init(void)
-{
-	struct omap_board_mux *obm;
-
-	omap3_evm_get_revision();
-	regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
-
-	obm = (cpu_is_omap3630()) ? omap36x_board_mux : omap35x_board_mux;
-	omap3_mux_init(obm, OMAP_PACKAGE_CBB);
-
-	omap_mux_init_gpio(63, OMAP_PIN_INPUT);
-	omap_hsmmc_init(mmc);
-
-	if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2)
-		omap3evm_twldata.vaux2 = &omap3evm_vaux2;
-
-	omap3_evm_i2c_init();
-
-	omap_display_init(&omap3_evm_dss_data);
-	platform_device_register(&omap3_evm_lcd_device);
-	platform_device_register(&omap3_evm_tfp410_device);
-	platform_device_register(&omap3_evm_dvi_connector_device);
-	platform_device_register(&omap3_evm_tv_connector_device);
-
-	omap_serial_init();
-	omap_sdrc_init(mt46h32m32lf6_sdrc_params, NULL);
-
-	/* OMAP3EVM uses ISP1504 phy and so register nop transceiver */
-	usb_nop_xceiv_register();
-
-	if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2) {
-		/* enable EHCI VBUS using GPIO22 */
-		omap_mux_init_gpio(OMAP3_EVM_EHCI_VBUS, OMAP_PIN_INPUT_PULLUP);
-		/* Select EHCI port on main board */
-		omap_mux_init_gpio(OMAP3_EVM_EHCI_SELECT,
-				   OMAP_PIN_INPUT_PULLUP);
-		gpio_request_array(omap3_evm_ehci_gpios,
-				   ARRAY_SIZE(omap3_evm_ehci_gpios));
-
-		/* setup EHCI phy reset config */
-		omap_mux_init_gpio(21, OMAP_PIN_INPUT_PULLUP);
-		phy_data[0].reset_gpio = 21;
-
-		/* EVM REV >= E can supply 500mA with EXTVBUS programming */
-		musb_board_data.power = 500;
-		musb_board_data.extvbus = 1;
-	} else {
-		/* setup EHCI phy reset on MDC */
-		omap_mux_init_gpio(135, OMAP_PIN_OUTPUT);
-		phy_data[0].reset_gpio = 135;
-	}
-	usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
-	usb_musb_init(&musb_board_data);
-
-	usbhs_init_phys(phy_data, ARRAY_SIZE(phy_data));
-	usbhs_init(&usbhs_bdata);
-	board_nand_init(omap3evm_nand_partitions,
-			ARRAY_SIZE(omap3evm_nand_partitions), NAND_CS,
-			NAND_BUSWIDTH_16, NULL);
-
-	omap_ads7846_init(1, OMAP3_EVM_TS_GPIO, 310, NULL);
-	omap3evm_init_smsc911x();
-#ifdef CONFIG_BROKEN
-	omap3_evm_display_init();
-#endif
-	omap3_evm_wl12xx_init();
-	omap_twl4030_audio_init("omap3evm", NULL);
-}
-
-MACHINE_START(OMAP3EVM, "OMAP3 EVM")
-	/* Maintainer: Syed Mohammed Khasim - Texas Instruments */
-	.atag_offset	= 0x100,
-	.reserve	= omap_reserve,
-	.map_io		= omap3_map_io,
-	.init_early	= omap35xx_init_early,
-	.init_irq	= omap3_init_irq,
-	.handle_irq	= omap3_intc_handle_irq,
-	.init_machine	= omap3_evm_init,
-	.init_late	= omap35xx_init_late,
-	.init_time	= omap3_sync32k_timer_init,
-	.restart	= omap3xxx_restart,
-MACHINE_END
-- 
cgit 


From 97411608fd5f17735f51103da08a738be1f932d9 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Mon, 14 Oct 2013 11:31:44 -0700
Subject: ARM: OMAP2+: Remove legacy support for zoom platforms

We now have pretty decent device tree based support for
zoom platforms. It's not complete, but basics work for
me so adding more features should be quite trivial.

Looks like also 3630 sdp is zoom based, and looking
at it's board file should also be trivial to support
with the device tree based booting.

Patches are welcome if people are still using these.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/Kconfig                  |  20 --
 arch/arm/mach-omap2/Makefile                 |   9 -
 arch/arm/mach-omap2/board-3630sdp.c          | 225 -----------------
 arch/arm/mach-omap2/board-ldp.c              |   3 +-
 arch/arm/mach-omap2/board-zoom-debugboard.c  | 139 -----------
 arch/arm/mach-omap2/board-zoom-display.c     |  71 ------
 arch/arm/mach-omap2/board-zoom-peripherals.c | 360 ---------------------------
 arch/arm/mach-omap2/board-zoom.c             | 159 ------------
 arch/arm/mach-omap2/board-zoom.h             |  10 -
 9 files changed, 1 insertion(+), 995 deletions(-)
 delete mode 100644 arch/arm/mach-omap2/board-3630sdp.c
 delete mode 100644 arch/arm/mach-omap2/board-zoom-debugboard.c
 delete mode 100644 arch/arm/mach-omap2/board-zoom-display.c
 delete mode 100644 arch/arm/mach-omap2/board-zoom-peripherals.c
 delete mode 100644 arch/arm/mach-omap2/board-zoom.c
 delete mode 100644 arch/arm/mach-omap2/board-zoom.h

diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index fbd730d895cf..7a020c5f985c 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -310,20 +310,6 @@ config MACH_NOKIA_RX51
 	default y
 	select OMAP_PACKAGE_CBB
 
-config MACH_OMAP_ZOOM2
-	bool "OMAP3 Zoom2 board"
-	depends on ARCH_OMAP3
-	default y
-	select OMAP_PACKAGE_CBB
-	select REGULATOR_FIXED_VOLTAGE if REGULATOR
-
-config MACH_OMAP_ZOOM3
-	bool "OMAP3630 Zoom3 board"
-	depends on ARCH_OMAP3
-	default y
-	select OMAP_PACKAGE_CBP
-	select REGULATOR_FIXED_VOLTAGE if REGULATOR
-
 config MACH_CM_T35
 	bool "CompuLab CM-T35/CM-T3730 modules"
 	depends on ARCH_OMAP3
@@ -359,12 +345,6 @@ config MACH_SBC3530
 	default y
 	select OMAP_PACKAGE_CUS
 
-config MACH_OMAP_3630SDP
-	bool "OMAP3630 SDP board"
-	depends on ARCH_OMAP3
-	default y
-	select OMAP_PACKAGE_CBP
-
 config MACH_TI8168EVM
 	bool "TI8168 Evaluation Module"
 	depends on SOC_TI81XX
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index f8db40d1f1c2..449a174ab926 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -248,15 +248,6 @@ obj-$(CONFIG_MACH_NOKIA_N8X0)		+= board-n8x0.o
 obj-$(CONFIG_MACH_NOKIA_RX51)		+= board-rx51.o sdram-nokia.o
 obj-$(CONFIG_MACH_NOKIA_RX51)		+= board-rx51-peripherals.o
 obj-$(CONFIG_MACH_NOKIA_RX51)		+= board-rx51-video.o
-obj-$(CONFIG_MACH_OMAP_ZOOM2)		+= board-zoom.o board-zoom-peripherals.o
-obj-$(CONFIG_MACH_OMAP_ZOOM2)		+= board-zoom-display.o
-obj-$(CONFIG_MACH_OMAP_ZOOM2)		+= board-zoom-debugboard.o
-obj-$(CONFIG_MACH_OMAP_ZOOM3)		+= board-zoom.o board-zoom-peripherals.o
-obj-$(CONFIG_MACH_OMAP_ZOOM3)		+= board-zoom-display.o
-obj-$(CONFIG_MACH_OMAP_ZOOM3)		+= board-zoom-debugboard.o
-obj-$(CONFIG_MACH_OMAP_3630SDP)		+= board-3630sdp.o
-obj-$(CONFIG_MACH_OMAP_3630SDP)		+= board-zoom-peripherals.o
-obj-$(CONFIG_MACH_OMAP_3630SDP)		+= board-zoom-display.o
 obj-$(CONFIG_MACH_CM_T35)		+= board-cm-t35.o
 obj-$(CONFIG_MACH_CM_T3517)		+= board-cm-t3517.o
 obj-$(CONFIG_MACH_IGEP0020)		+= board-igep0020.o
diff --git a/arch/arm/mach-omap2/board-3630sdp.c b/arch/arm/mach-omap2/board-3630sdp.c
deleted file mode 100644
index 20d6d8189240..000000000000
--- a/arch/arm/mach-omap2/board-3630sdp.c
+++ /dev/null
@@ -1,225 +0,0 @@
-/*
- * Copyright (C) 2009 Texas Instruments Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/input.h>
-#include <linux/gpio.h>
-#include <linux/mtd/nand.h>
-
-#include <asm/mach-types.h>
-#include <asm/mach/arch.h>
-
-#include "common.h"
-#include "gpmc-smc91x.h"
-
-#include "board-zoom.h"
-
-#include "board-flash.h"
-#include "mux.h"
-#include "sdram-hynix-h8mbx00u0mer-0em.h"
-
-#if defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE)
-
-static struct omap_smc91x_platform_data board_smc91x_data = {
-	.cs             = 3,
-	.flags          = GPMC_MUX_ADD_DATA | IORESOURCE_IRQ_LOWLEVEL,
-};
-
-static void __init board_smc91x_init(void)
-{
-	board_smc91x_data.gpio_irq = 158;
-	gpmc_smc91x_init(&board_smc91x_data);
-}
-
-#else
-
-static inline void board_smc91x_init(void)
-{
-}
-
-#endif /* defined(CONFIG_SMC91X) || defined(CONFIG_SMC91X_MODULE) */
-
-static void enable_board_wakeup_source(void)
-{
-	/* T2 interrupt line (keypad) */
-	omap_mux_init_signal("sys_nirq",
-		OMAP_WAKEUP_EN | OMAP_PIN_INPUT_PULLUP);
-}
-
-static struct usbhs_phy_data phy_data[] __initdata = {
-	{
-		.port = 1,
-		.reset_gpio = 126,
-		.vcc_gpio = -EINVAL,
-	},
-	{
-		.port = 2,
-		.reset_gpio = 61,
-		.vcc_gpio = -EINVAL,
-	},
-};
-
-static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
-
-	.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
-	.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
-};
-
-#ifdef CONFIG_OMAP_MUX
-static struct omap_board_mux board_mux[] __initdata = {
-	{ .reg_offset = OMAP_MUX_TERMINATOR },
-};
-#endif
-
-/*
- * SDP3630 CS organization
- * See also the Switch S8 settings in the comments.
- */
-static char chip_sel_sdp[][GPMC_CS_NUM] = {
-	{PDC_NOR, PDC_NAND, PDC_ONENAND, DBG_MPDB, 0, 0, 0, 0}, /* S8:1111 */
-	{PDC_ONENAND, PDC_NAND, PDC_NOR, DBG_MPDB, 0, 0, 0, 0}, /* S8:1110 */
-	{PDC_NAND, PDC_ONENAND, PDC_NOR, DBG_MPDB, 0, 0, 0, 0}, /* S8:1101 */
-};
-
-static struct mtd_partition sdp_nor_partitions[] = {
-	/* bootloader (U-Boot, etc) in first sector */
-	{
-		.name		= "Bootloader-NOR",
-		.offset		= 0,
-		.size		= SZ_256K,
-		.mask_flags	= MTD_WRITEABLE, /* force read-only */
-	},
-	/* bootloader params in the next sector */
-	{
-		.name		= "Params-NOR",
-		.offset		= MTDPART_OFS_APPEND,
-		.size		= SZ_256K,
-		.mask_flags	= 0,
-	},
-	/* kernel */
-	{
-		.name		= "Kernel-NOR",
-		.offset		= MTDPART_OFS_APPEND,
-		.size		= SZ_2M,
-		.mask_flags	= 0
-	},
-	/* file system */
-	{
-		.name		= "Filesystem-NOR",
-		.offset		= MTDPART_OFS_APPEND,
-		.size		= MTDPART_SIZ_FULL,
-		.mask_flags	= 0
-	}
-};
-
-static struct mtd_partition sdp_onenand_partitions[] = {
-	{
-		.name		= "X-Loader-OneNAND",
-		.offset		= 0,
-		.size		= 4 * (64 * 2048),
-		.mask_flags	= MTD_WRITEABLE  /* force read-only */
-	},
-	{
-		.name		= "U-Boot-OneNAND",
-		.offset		= MTDPART_OFS_APPEND,
-		.size		= 2 * (64 * 2048),
-		.mask_flags	= MTD_WRITEABLE  /* force read-only */
-	},
-	{
-		.name		= "U-Boot Environment-OneNAND",
-		.offset		= MTDPART_OFS_APPEND,
-		.size		= 1 * (64 * 2048),
-	},
-	{
-		.name		= "Kernel-OneNAND",
-		.offset		= MTDPART_OFS_APPEND,
-		.size		= 16 * (64 * 2048),
-	},
-	{
-		.name		= "File System-OneNAND",
-		.offset		= MTDPART_OFS_APPEND,
-		.size		= MTDPART_SIZ_FULL,
-	},
-};
-
-static struct mtd_partition sdp_nand_partitions[] = {
-	/* All the partition sizes are listed in terms of NAND block size */
-	{
-		.name		= "X-Loader-NAND",
-		.offset		= 0,
-		.size		= 4 * (64 * 2048),
-		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
-	},
-	{
-		.name		= "U-Boot-NAND",
-		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x80000 */
-		.size		= 10 * (64 * 2048),
-		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
-	},
-	{
-		.name		= "Boot Env-NAND",
-
-		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x1c0000 */
-		.size		= 6 * (64 * 2048),
-	},
-	{
-		.name		= "Kernel-NAND",
-		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x280000 */
-		.size		= 40 * (64 * 2048),
-	},
-	{
-		.name		= "File System - NAND",
-		.size		= MTDPART_SIZ_FULL,
-		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x780000 */
-	},
-};
-
-static struct flash_partitions sdp_flash_partitions[] = {
-	{
-		.parts = sdp_nor_partitions,
-		.nr_parts = ARRAY_SIZE(sdp_nor_partitions),
-	},
-	{
-		.parts = sdp_onenand_partitions,
-		.nr_parts = ARRAY_SIZE(sdp_onenand_partitions),
-	},
-	{
-		.parts = sdp_nand_partitions,
-		.nr_parts = ARRAY_SIZE(sdp_nand_partitions),
-	},
-};
-
-static void __init omap_sdp_init(void)
-{
-	omap3_mux_init(board_mux, OMAP_PACKAGE_CBP);
-	zoom_peripherals_init();
-	omap_sdrc_init(h8mbx00u0mer0em_sdrc_params,
-				  h8mbx00u0mer0em_sdrc_params);
-	zoom_display_init();
-	board_smc91x_init();
-	board_flash_init(sdp_flash_partitions, chip_sel_sdp, NAND_BUSWIDTH_16);
-	enable_board_wakeup_source();
-
-	usbhs_init_phys(phy_data, ARRAY_SIZE(phy_data));
-	usbhs_init(&usbhs_bdata);
-}
-
-MACHINE_START(OMAP_3630SDP, "OMAP 3630SDP board")
-	.atag_offset	= 0x100,
-	.reserve	= omap_reserve,
-	.map_io		= omap3_map_io,
-	.init_early	= omap3630_init_early,
-	.init_irq	= omap3_init_irq,
-	.handle_irq	= omap3_intc_handle_irq,
-	.init_machine	= omap_sdp_init,
-	.init_late	= omap3630_init_late,
-	.init_time	= omap3_sync32k_timer_init,
-	.restart	= omap3xxx_restart,
-MACHINE_END
diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c
index dd8da2c5399f..4ec8d82b0492 100644
--- a/arch/arm/mach-omap2/board-ldp.c
+++ b/arch/arm/mach-omap2/board-ldp.c
@@ -36,7 +36,6 @@
 #include <asm/mach/map.h>
 
 #include "common.h"
-#include "board-zoom.h"
 #include "gpmc.h"
 #include "gpmc-smsc911x.h"
 
@@ -406,7 +405,7 @@ static void __init omap_ldp_init(void)
 	usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
 	usb_musb_init(NULL);
 	board_nand_init(ldp_nand_partitions, ARRAY_SIZE(ldp_nand_partitions),
-			ZOOM_NAND_CS, 0, nand_default_timings);
+			0, 0, nand_default_timings);
 
 	omap_hsmmc_init(mmc);
 	ldp_display_init();
diff --git a/arch/arm/mach-omap2/board-zoom-debugboard.c b/arch/arm/mach-omap2/board-zoom-debugboard.c
deleted file mode 100644
index 42e5f231a799..000000000000
--- a/arch/arm/mach-omap2/board-zoom-debugboard.c
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * Copyright (C) 2009 Texas Instruments Inc.
- * Mikkel Christensen <mlc@ti.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/gpio.h>
-#include <linux/serial_8250.h>
-#include <linux/smsc911x.h>
-#include <linux/interrupt.h>
-
-#include <linux/regulator/fixed.h>
-#include <linux/regulator/machine.h>
-
-#include "gpmc.h"
-#include "gpmc-smsc911x.h"
-
-#include "board-zoom.h"
-
-#include "soc.h"
-#include "common.h"
-
-#define ZOOM_SMSC911X_CS	7
-#define ZOOM_SMSC911X_GPIO	158
-#define ZOOM_QUADUART_CS	3
-#define ZOOM_QUADUART_GPIO	102
-#define ZOOM_QUADUART_RST_GPIO	152
-#define QUART_CLK		1843200
-#define DEBUG_BASE		0x08000000
-#define ZOOM_ETHR_START	DEBUG_BASE
-
-static struct omap_smsc911x_platform_data zoom_smsc911x_cfg = {
-	.cs             = ZOOM_SMSC911X_CS,
-	.gpio_irq       = ZOOM_SMSC911X_GPIO,
-	.gpio_reset     = -EINVAL,
-	.flags		= SMSC911X_USE_32BIT,
-};
-
-static inline void __init zoom_init_smsc911x(void)
-{
-	gpmc_smsc911x_init(&zoom_smsc911x_cfg);
-}
-
-static struct plat_serial8250_port serial_platform_data[] = {
-	{
-		.mapbase	= ZOOM_UART_BASE,
-		.flags		= UPF_BOOT_AUTOCONF|UPF_IOREMAP|UPF_SHARE_IRQ,
-		.irqflags	= IRQF_SHARED | IRQF_TRIGGER_RISING,
-		.iotype		= UPIO_MEM,
-		.regshift	= 1,
-		.uartclk	= QUART_CLK,
-	}, {
-		.flags		= 0
-	}
-};
-
-static struct platform_device zoom_debugboard_serial_device = {
-	.name			= "serial8250",
-	.id			= PLAT8250_DEV_PLATFORM,
-	.dev			= {
-		.platform_data	= serial_platform_data,
-	},
-};
-
-static inline void __init zoom_init_quaduart(void)
-{
-	int quart_cs;
-	unsigned long cs_mem_base;
-	int quart_gpio = 0;
-
-	if (gpio_request_one(ZOOM_QUADUART_RST_GPIO,
-				GPIOF_OUT_INIT_LOW,
-				"TL16CP754C GPIO") < 0) {
-		pr_err("Failed to request GPIO%d for TL16CP754C\n",
-			ZOOM_QUADUART_RST_GPIO);
-		return;
-	}
-
-	quart_cs = ZOOM_QUADUART_CS;
-
-	if (gpmc_cs_request(quart_cs, SZ_1M, &cs_mem_base) < 0) {
-		pr_err("Failed to request GPMC mem for Quad UART(TL16CP754C)\n");
-		return;
-	}
-
-	quart_gpio = ZOOM_QUADUART_GPIO;
-
-	if (gpio_request_one(quart_gpio, GPIOF_IN, "TL16CP754C GPIO") < 0)
-		printk(KERN_ERR "Failed to request GPIO%d for TL16CP754C\n",
-								quart_gpio);
-
-	serial_platform_data[0].irq = gpio_to_irq(102);
-}
-
-static inline int omap_zoom_debugboard_detect(void)
-{
-	int debug_board_detect = 0;
-	int ret = 1;
-
-	debug_board_detect = ZOOM_SMSC911X_GPIO;
-
-	if (gpio_request_one(debug_board_detect, GPIOF_IN,
-			     "Zoom debug board detect") < 0) {
-		pr_err("Failed to request GPIO%d for Zoom debug board detect\n",
-		       debug_board_detect);
-		return 0;
-	}
-
-	if (!gpio_get_value(debug_board_detect)) {
-		ret = 0;
-	}
-	gpio_free(debug_board_detect);
-	return ret;
-}
-
-static struct platform_device *zoom_devices[] __initdata = {
-	&zoom_debugboard_serial_device,
-};
-
-static struct regulator_consumer_supply dummy_supplies[] = {
-	REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
-	REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
-};
-
-int __init zoom_debugboard_init(void)
-{
-	if (!omap_zoom_debugboard_detect())
-		return 0;
-
-	regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
-	zoom_init_smsc911x();
-	zoom_init_quaduart();
-	return platform_add_devices(zoom_devices, ARRAY_SIZE(zoom_devices));
-}
diff --git a/arch/arm/mach-omap2/board-zoom-display.c b/arch/arm/mach-omap2/board-zoom-display.c
deleted file mode 100644
index 3d8ecc1e05bd..000000000000
--- a/arch/arm/mach-omap2/board-zoom-display.c
+++ /dev/null
@@ -1,71 +0,0 @@
-/*
- * Copyright (C) 2010 Texas Instruments Inc.
- *
- * Modified from mach-omap2/board-zoom-peripherals.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/gpio.h>
-#include <linux/spi/spi.h>
-#include <linux/platform_data/spi-omap2-mcspi.h>
-#include <video/omapdss.h>
-#include <video/omap-panel-data.h>
-
-#include "board-zoom.h"
-#include "soc.h"
-#include "common.h"
-
-#define LCD_PANEL_RESET_GPIO_PROD	96
-#define LCD_PANEL_RESET_GPIO_PILOT	55
-#define LCD_PANEL_QVGA_GPIO		56
-
-static struct panel_nec_nl8048hl11_platform_data zoom_lcd_pdata = {
-	.name                   = "lcd",
-	.source                 = "dpi.0",
-
-	.data_lines		= 24,
-
-	.res_gpio		= -1,	/* filled in code */
-	.qvga_gpio		= LCD_PANEL_QVGA_GPIO,
-};
-
-static struct omap_dss_board_info zoom_dss_data = {
-	.default_display_name = "lcd",
-};
-
-static void __init zoom_lcd_panel_init(void)
-{
-	zoom_lcd_pdata.res_gpio = (omap_rev() > OMAP3430_REV_ES3_0) ?
-			LCD_PANEL_RESET_GPIO_PROD :
-			LCD_PANEL_RESET_GPIO_PILOT;
-}
-
-static struct omap2_mcspi_device_config dss_lcd_mcspi_config = {
-	.turbo_mode		= 1,
-};
-
-static struct spi_board_info nec_8048_spi_board_info[] __initdata = {
-	[0] = {
-		.modalias		= "panel-nec-nl8048hl11",
-		.bus_num		= 1,
-		.chip_select		= 2,
-		.max_speed_hz		= 375000,
-		.controller_data	= &dss_lcd_mcspi_config,
-		.platform_data		= &zoom_lcd_pdata,
-	},
-};
-
-void __init zoom_display_init(void)
-{
-	omap_display_init(&zoom_dss_data);
-	zoom_lcd_panel_init();
-	spi_register_board_info(nec_8048_spi_board_info,
-				ARRAY_SIZE(nec_8048_spi_board_info));
-}
-
diff --git a/arch/arm/mach-omap2/board-zoom-peripherals.c b/arch/arm/mach-omap2/board-zoom-peripherals.c
deleted file mode 100644
index a90375d5b2b6..000000000000
--- a/arch/arm/mach-omap2/board-zoom-peripherals.c
+++ /dev/null
@@ -1,360 +0,0 @@
-/*
- * Copyright (C) 2009 Texas Instruments Inc.
- *
- * Modified from mach-omap2/board-zoom2.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/input.h>
-#include <linux/input/matrix_keypad.h>
-#include <linux/gpio.h>
-#include <linux/i2c/twl.h>
-#include <linux/regulator/machine.h>
-#include <linux/regulator/fixed.h>
-#include <linux/wl12xx.h>
-#include <linux/mmc/host.h>
-#include <linux/platform_data/gpio-omap.h>
-#include <linux/platform_data/omap-twl4030.h>
-#include <linux/usb/phy.h>
-#include <linux/pwm.h>
-#include <linux/leds_pwm.h>
-#include <linux/pwm_backlight.h>
-
-#include <asm/mach-types.h>
-#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-
-#include "common.h"
-
-#include "board-zoom.h"
-
-#include "mux.h"
-#include "hsmmc.h"
-#include "common-board-devices.h"
-
-#define OMAP_ZOOM_WLAN_PMENA_GPIO	(101)
-#define OMAP_ZOOM_TSC2004_IRQ_GPIO	(153)
-#define OMAP_ZOOM_WLAN_IRQ_GPIO		(162)
-
-/* Zoom2 has Qwerty keyboard*/
-static uint32_t board_keymap[] = {
-	KEY(0, 0, KEY_E),
-	KEY(0, 1, KEY_R),
-	KEY(0, 2, KEY_T),
-	KEY(0, 3, KEY_HOME),
-	KEY(0, 6, KEY_I),
-	KEY(0, 7, KEY_LEFTSHIFT),
-	KEY(1, 0, KEY_D),
-	KEY(1, 1, KEY_F),
-	KEY(1, 2, KEY_G),
-	KEY(1, 3, KEY_SEND),
-	KEY(1, 6, KEY_K),
-	KEY(1, 7, KEY_ENTER),
-	KEY(2, 0, KEY_X),
-	KEY(2, 1, KEY_C),
-	KEY(2, 2, KEY_V),
-	KEY(2, 3, KEY_END),
-	KEY(2, 6, KEY_DOT),
-	KEY(2, 7, KEY_CAPSLOCK),
-	KEY(3, 0, KEY_Z),
-	KEY(3, 1, KEY_KPPLUS),
-	KEY(3, 2, KEY_B),
-	KEY(3, 3, KEY_F1),
-	KEY(3, 6, KEY_O),
-	KEY(3, 7, KEY_SPACE),
-	KEY(4, 0, KEY_W),
-	KEY(4, 1, KEY_Y),
-	KEY(4, 2, KEY_U),
-	KEY(4, 3, KEY_F2),
-	KEY(4, 4, KEY_VOLUMEUP),
-	KEY(4, 6, KEY_L),
-	KEY(4, 7, KEY_LEFT),
-	KEY(5, 0, KEY_S),
-	KEY(5, 1, KEY_H),
-	KEY(5, 2, KEY_J),
-	KEY(5, 3, KEY_F3),
-	KEY(5, 4, KEY_UNKNOWN),
-	KEY(5, 5, KEY_VOLUMEDOWN),
-	KEY(5, 6, KEY_M),
-	KEY(5, 7, KEY_RIGHT),
-	KEY(6, 0, KEY_Q),
-	KEY(6, 1, KEY_A),
-	KEY(6, 2, KEY_N),
-	KEY(6, 3, KEY_BACKSPACE),
-	KEY(6, 6, KEY_P),
-	KEY(6, 7, KEY_UP),
-	KEY(7, 0, KEY_PROG1),	/*MACRO 1 <User defined> */
-	KEY(7, 1, KEY_PROG2),	/*MACRO 2 <User defined> */
-	KEY(7, 2, KEY_PROG3),	/*MACRO 3 <User defined> */
-	KEY(7, 3, KEY_PROG4),	/*MACRO 4 <User defined> */
-	KEY(7, 6, KEY_SELECT),
-	KEY(7, 7, KEY_DOWN)
-};
-
-static struct matrix_keymap_data board_map_data = {
-	.keymap			= board_keymap,
-	.keymap_size		= ARRAY_SIZE(board_keymap),
-};
-
-static struct twl4030_keypad_data zoom_kp_twl4030_data = {
-	.keymap_data	= &board_map_data,
-	.rows		= 8,
-	.cols		= 8,
-	.rep		= 1,
-};
-
-static struct regulator_consumer_supply zoom_vmmc1_supply[] = {
-	REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
-};
-
-static struct regulator_consumer_supply zoom_vsim_supply[] = {
-	REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
-};
-
-static struct regulator_consumer_supply zoom_vmmc2_supply[] = {
-	REGULATOR_SUPPLY("vmmc", "omap_hsmmc.1"),
-};
-
-static struct regulator_consumer_supply zoom_vmmc3_supply[] = {
-	REGULATOR_SUPPLY("vmmc", "omap_hsmmc.2"),
-};
-
-/* VMMC1 for OMAP VDD_MMC1 (i/o) and MMC1 card */
-static struct regulator_init_data zoom_vmmc1 = {
-	.constraints = {
-		.min_uV			= 1850000,
-		.max_uV			= 3150000,
-		.valid_modes_mask	= REGULATOR_MODE_NORMAL
-					| REGULATOR_MODE_STANDBY,
-		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
-					| REGULATOR_CHANGE_MODE
-					| REGULATOR_CHANGE_STATUS,
-	},
-	.num_consumer_supplies  = ARRAY_SIZE(zoom_vmmc1_supply),
-	.consumer_supplies      = zoom_vmmc1_supply,
-};
-
-/* VMMC2 for MMC2 card */
-static struct regulator_init_data zoom_vmmc2 = {
-	.constraints = {
-		.min_uV			= 1850000,
-		.max_uV			= 1850000,
-		.apply_uV		= true,
-		.valid_modes_mask	= REGULATOR_MODE_NORMAL
-					| REGULATOR_MODE_STANDBY,
-		.valid_ops_mask		= REGULATOR_CHANGE_MODE
-					| REGULATOR_CHANGE_STATUS,
-	},
-	.num_consumer_supplies  = ARRAY_SIZE(zoom_vmmc2_supply),
-	.consumer_supplies      = zoom_vmmc2_supply,
-};
-
-/* VSIM for OMAP VDD_MMC1A (i/o for DAT4..DAT7) */
-static struct regulator_init_data zoom_vsim = {
-	.constraints = {
-		.min_uV			= 1800000,
-		.max_uV			= 3000000,
-		.valid_modes_mask	= REGULATOR_MODE_NORMAL
-					| REGULATOR_MODE_STANDBY,
-		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
-					| REGULATOR_CHANGE_MODE
-					| REGULATOR_CHANGE_STATUS,
-	},
-	.num_consumer_supplies  = ARRAY_SIZE(zoom_vsim_supply),
-	.consumer_supplies      = zoom_vsim_supply,
-};
-
-static struct regulator_init_data zoom_vmmc3 = {
-	.constraints = {
-		.valid_ops_mask	= REGULATOR_CHANGE_STATUS,
-	},
-	.num_consumer_supplies	= ARRAY_SIZE(zoom_vmmc3_supply),
-	.consumer_supplies	= zoom_vmmc3_supply,
-};
-
-static struct fixed_voltage_config zoom_vwlan = {
-	.supply_name		= "vwl1271",
-	.microvolts		= 1800000, /* 1.8V */
-	.gpio			= OMAP_ZOOM_WLAN_PMENA_GPIO,
-	.startup_delay		= 70000, /* 70msec */
-	.enable_high		= 1,
-	.enabled_at_boot	= 0,
-	.init_data		= &zoom_vmmc3,
-};
-
-static struct platform_device omap_vwlan_device = {
-	.name		= "reg-fixed-voltage",
-	.id		= 1,
-	.dev = {
-		.platform_data	= &zoom_vwlan,
-	},
-};
-
-static struct pwm_lookup zoom_pwm_lookup[] = {
-	PWM_LOOKUP("twl-pwm", 0, "leds_pwm", "zoom::keypad"),
-	PWM_LOOKUP("twl-pwm", 1, "pwm-backlight", "backlight"),
-};
-
-static struct led_pwm zoom_pwm_leds[] = {
-	{
-		.name		= "zoom::keypad",
-		.max_brightness	= 127,
-		.pwm_period_ns	= 7812500,
-	},
-};
-
-static struct led_pwm_platform_data zoom_pwm_data = {
-	.num_leds	= ARRAY_SIZE(zoom_pwm_leds),
-	.leds		= zoom_pwm_leds,
-};
-
-static struct platform_device zoom_leds_pwm = {
-	.name	= "leds_pwm",
-	.id	= -1,
-	.dev	= {
-		.platform_data = &zoom_pwm_data,
-	},
-};
-
-static struct platform_pwm_backlight_data zoom_backlight_data = {
-	.pwm_id = 1,
-	.max_brightness = 127,
-	.dft_brightness = 127,
-	.pwm_period_ns = 7812500,
-};
-
-static struct platform_device zoom_backlight_pwm = {
-	.name   = "pwm-backlight",
-	.id     = -1,
-	.dev    = {
-		.platform_data = &zoom_backlight_data,
-	},
-};
-
-static struct platform_device *zoom_devices[] __initdata = {
-	&omap_vwlan_device,
-	&zoom_leds_pwm,
-	&zoom_backlight_pwm,
-};
-
-static struct wl12xx_platform_data omap_zoom_wlan_data __initdata = {
-	.board_ref_clock = WL12XX_REFCLOCK_26, /* 26 MHz */
-};
-
-static struct omap2_hsmmc_info mmc[] = {
-	{
-		.name		= "external",
-		.mmc		= 1,
-		.caps		= MMC_CAP_4_BIT_DATA,
-		.gpio_wp	= -EINVAL,
-		.power_saving	= true,
-		.deferred	= true,
-	},
-	{
-		.name		= "internal",
-		.mmc		= 2,
-		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
-		.gpio_cd	= -EINVAL,
-		.gpio_wp	= -EINVAL,
-		.nonremovable	= true,
-		.power_saving	= true,
-	},
-	{
-		.name		= "wl1271",
-		.mmc		= 3,
-		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
-		.gpio_wp	= -EINVAL,
-		.gpio_cd	= -EINVAL,
-		.nonremovable	= true,
-	},
-	{}      /* Terminator */
-};
-
-static struct omap_tw4030_pdata omap_twl4030_audio_data = {
-	.voice_connected = true,
-	.custom_routing	= true,
-
-	.has_hs		= OMAP_TWL4030_LEFT | OMAP_TWL4030_RIGHT,
-	.has_hf		= OMAP_TWL4030_LEFT | OMAP_TWL4030_RIGHT,
-
-	.has_mainmic	= true,
-	.has_submic	= true,
-	.has_hsmic	= true,
-	.has_linein	= OMAP_TWL4030_LEFT | OMAP_TWL4030_RIGHT,
-};
-
-static int zoom_twl_gpio_setup(struct device *dev,
-		unsigned gpio, unsigned ngpio)
-{
-	/* gpio + 0 is "mmc0_cd" (input/IRQ) */
-	mmc[0].gpio_cd = gpio + 0;
-	omap_hsmmc_late_init(mmc);
-
-	/* Audio setup */
-	omap_twl4030_audio_data.jack_detect = gpio + 2;
-	omap_twl4030_audio_init("Zoom2", &omap_twl4030_audio_data);
-
-	return 0;
-}
-
-static struct twl4030_gpio_platform_data zoom_gpio_data = {
-	.setup		= zoom_twl_gpio_setup,
-};
-
-static struct twl4030_platform_data zoom_twldata = {
-	/* platform_data for children goes here */
-	.gpio		= &zoom_gpio_data,
-	.keypad		= &zoom_kp_twl4030_data,
-	.vmmc1          = &zoom_vmmc1,
-	.vmmc2          = &zoom_vmmc2,
-	.vsim           = &zoom_vsim,
-};
-
-static int __init omap_i2c_init(void)
-{
-	omap3_pmic_get_config(&zoom_twldata,
-			TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_BCI |
-			TWL_COMMON_PDATA_MADC | TWL_COMMON_PDATA_AUDIO,
-			TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
-
-	if (machine_is_omap_zoom2())
-		zoom_twldata.audio->codec->ramp_delay_value = 3; /* 161 ms */
-
-	omap_pmic_init(1, 2400, "twl5030", 7 + OMAP_INTC_START, &zoom_twldata);
-	omap_register_i2c_bus(2, 400, NULL, 0);
-	omap_register_i2c_bus(3, 400, NULL, 0);
-	return 0;
-}
-
-static void enable_board_wakeup_source(void)
-{
-	/* T2 interrupt line (keypad) */
-	omap_mux_init_signal("sys_nirq",
-		OMAP_WAKEUP_EN | OMAP_PIN_INPUT_PULLUP);
-}
-
-void __init zoom_peripherals_init(void)
-{
-	int ret;
-
-	omap_zoom_wlan_data.irq = gpio_to_irq(OMAP_ZOOM_WLAN_IRQ_GPIO);
-	ret = wl12xx_set_platform_data(&omap_zoom_wlan_data);
-
-	if (ret)
-		pr_err("error setting wl12xx data: %d\n", ret);
-
-	omap_hsmmc_init(mmc);
-	omap_i2c_init();
-	pwm_add_table(zoom_pwm_lookup, ARRAY_SIZE(zoom_pwm_lookup));
-	platform_add_devices(zoom_devices, ARRAY_SIZE(zoom_devices));
-	usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
-	usb_musb_init(NULL);
-	enable_board_wakeup_source();
-	omap_serial_init();
-}
diff --git a/arch/arm/mach-omap2/board-zoom.c b/arch/arm/mach-omap2/board-zoom.c
deleted file mode 100644
index 1a3dd865d8eb..000000000000
--- a/arch/arm/mach-omap2/board-zoom.c
+++ /dev/null
@@ -1,159 +0,0 @@
-/*
- * Copyright (C) 2009-2010 Texas Instruments Inc.
- * Mikkel Christensen <mlc@ti.com>
- * Felipe Balbi <balbi@ti.com>
- *
- * Modified from mach-omap2/board-ldp.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/input.h>
-#include <linux/gpio.h>
-#include <linux/i2c/twl.h>
-#include <linux/mtd/nand.h>
-
-#include <asm/mach-types.h>
-#include <asm/mach/arch.h>
-
-#include "common.h"
-
-#include "board-zoom.h"
-
-#include "board-flash.h"
-#include "mux.h"
-#include "sdram-micron-mt46h32m32lf-6.h"
-#include "sdram-hynix-h8mbx00u0mer-0em.h"
-
-#define ZOOM3_EHCI_RESET_GPIO		64
-
-#ifdef CONFIG_OMAP_MUX
-static struct omap_board_mux board_mux[] __initdata = {
-	/* WLAN IRQ - GPIO 162 */
-	OMAP3_MUX(MCBSP1_CLKX, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
-	/* WLAN POWER ENABLE - GPIO 101 */
-	OMAP3_MUX(CAM_D2, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
-	/* WLAN SDIO: MMC3 CMD */
-	OMAP3_MUX(MCSPI1_CS1, OMAP_MUX_MODE3 | OMAP_PIN_INPUT_PULLUP),
-	/* WLAN SDIO: MMC3 CLK */
-	OMAP3_MUX(ETK_CLK, OMAP_MUX_MODE2 | OMAP_PIN_INPUT_PULLUP),
-	/* WLAN SDIO: MMC3 DAT[0-3] */
-	OMAP3_MUX(ETK_D3, OMAP_MUX_MODE2 | OMAP_PIN_INPUT_PULLUP),
-	OMAP3_MUX(ETK_D4, OMAP_MUX_MODE2 | OMAP_PIN_INPUT_PULLUP),
-	OMAP3_MUX(ETK_D5, OMAP_MUX_MODE2 | OMAP_PIN_INPUT_PULLUP),
-	OMAP3_MUX(ETK_D6, OMAP_MUX_MODE2 | OMAP_PIN_INPUT_PULLUP),
-	{ .reg_offset = OMAP_MUX_TERMINATOR },
-};
-#endif
-
-static struct mtd_partition zoom_nand_partitions[] = {
-	/* All the partition sizes are listed in terms of NAND block size */
-	{
-		.name		= "X-Loader-NAND",
-		.offset		= 0,
-		.size		= 4 * (64 * 2048),	/* 512KB, 0x80000 */
-		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
-	},
-	{
-		.name		= "U-Boot-NAND",
-		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x80000 */
-		.size		= 10 * (64 * 2048),	/* 1.25MB, 0x140000 */
-		.mask_flags	= MTD_WRITEABLE,	/* force read-only */
-	},
-	{
-		.name		= "Boot Env-NAND",
-		.offset		= MTDPART_OFS_APPEND,   /* Offset = 0x1c0000 */
-		.size		= 2 * (64 * 2048),	/* 256KB, 0x40000 */
-	},
-	{
-		.name		= "Kernel-NAND",
-		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x0200000*/
-		.size		= 240 * (64 * 2048),	/* 30M, 0x1E00000 */
-	},
-	{
-		.name		= "system",
-		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x2000000 */
-		.size		= 3328 * (64 * 2048),	/* 416M, 0x1A000000 */
-	},
-	{
-		.name		= "userdata",
-		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x1C000000*/
-		.size		= 256 * (64 * 2048),	/* 32M, 0x2000000 */
-	},
-	{
-		.name		= "cache",
-		.offset		= MTDPART_OFS_APPEND,	/* Offset = 0x1E000000*/
-		.size		= 256 * (64 * 2048),	/* 32M, 0x2000000 */
-	},
-};
-
-static struct usbhs_phy_data phy_data[] __initdata = {
-	{
-		.port = 2,
-		.reset_gpio = ZOOM3_EHCI_RESET_GPIO,
-		.vcc_gpio = -EINVAL,
-	},
-};
-
-static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
-	.port_mode[1]		= OMAP_EHCI_PORT_MODE_PHY,
-};
-
-static void __init omap_zoom_init(void)
-{
-	if (machine_is_omap_zoom2()) {
-		omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
-	} else if (machine_is_omap_zoom3()) {
-		omap3_mux_init(board_mux, OMAP_PACKAGE_CBP);
-		omap_mux_init_gpio(ZOOM3_EHCI_RESET_GPIO, OMAP_PIN_OUTPUT);
-
-		usbhs_init_phys(phy_data, ARRAY_SIZE(phy_data));
-		usbhs_init(&usbhs_bdata);
-	}
-
-	board_nand_init(zoom_nand_partitions,
-			ARRAY_SIZE(zoom_nand_partitions), ZOOM_NAND_CS,
-			NAND_BUSWIDTH_16, nand_default_timings);
-	zoom_debugboard_init();
-	zoom_peripherals_init();
-
-	if (machine_is_omap_zoom2())
-		omap_sdrc_init(mt46h32m32lf6_sdrc_params,
-					  mt46h32m32lf6_sdrc_params);
-	else if (machine_is_omap_zoom3())
-		omap_sdrc_init(h8mbx00u0mer0em_sdrc_params,
-					  h8mbx00u0mer0em_sdrc_params);
-
-	zoom_display_init();
-}
-
-MACHINE_START(OMAP_ZOOM2, "OMAP Zoom2 board")
-	.atag_offset	= 0x100,
-	.reserve	= omap_reserve,
-	.map_io		= omap3_map_io,
-	.init_early	= omap3430_init_early,
-	.init_irq	= omap3_init_irq,
-	.handle_irq	= omap3_intc_handle_irq,
-	.init_machine	= omap_zoom_init,
-	.init_late	= omap3430_init_late,
-	.init_time	= omap3_sync32k_timer_init,
-	.restart	= omap3xxx_restart,
-MACHINE_END
-
-MACHINE_START(OMAP_ZOOM3, "OMAP Zoom3 board")
-	.atag_offset	= 0x100,
-	.reserve	= omap_reserve,
-	.map_io		= omap3_map_io,
-	.init_early	= omap3630_init_early,
-	.init_irq	= omap3_init_irq,
-	.handle_irq	= omap3_intc_handle_irq,
-	.init_machine	= omap_zoom_init,
-	.init_late	= omap3630_init_late,
-	.init_time	= omap3_sync32k_timer_init,
-	.restart	= omap3xxx_restart,
-MACHINE_END
diff --git a/arch/arm/mach-omap2/board-zoom.h b/arch/arm/mach-omap2/board-zoom.h
deleted file mode 100644
index 2e9486940ead..000000000000
--- a/arch/arm/mach-omap2/board-zoom.h
+++ /dev/null
@@ -1,10 +0,0 @@
-/*
- * Defines for zoom boards
- */
-#include <video/omapdss.h>
-
-#define ZOOM_NAND_CS    0
-
-extern int __init zoom_debugboard_init(void);
-extern void __init zoom_peripherals_init(void);
-extern void __init zoom_display_init(void);
-- 
cgit 


From 06ff74fd197aa8205443cf64b94383802602e320 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Fri, 18 Oct 2013 17:37:53 +0200
Subject: ARM: OMAP2+: remove legacy support for IGEP boards

Device Tree support for IGEP boards in mainline is almost
finished. The only remaining bits are support for the
Marvell SD8686 wifi + BT and TFP410 DVI chips.

Adding support for these should be straightforward so let's
not block OMAP3 moving to Device Tree only boot and remove
the board file for IGEP boards.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 MAINTAINERS                          |   2 +-
 arch/arm/mach-omap2/Kconfig          |  13 -
 arch/arm/mach-omap2/Makefile         |   1 -
 arch/arm/mach-omap2/board-igep0020.c | 683 -----------------------------------
 4 files changed, 1 insertion(+), 698 deletions(-)
 delete mode 100644 arch/arm/mach-omap2/board-igep0020.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 8a0cbf3cf2c8..1f006f15668c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -929,7 +929,7 @@ M:	Javier Martinez Canillas <javier@dowhile0.org>
 L:	linux-omap@vger.kernel.org
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
-F:	arch/arm/mach-omap2/board-igep0020.c
+F:	arch/arm/boot/dts/omap3-igep*
 
 ARM/INCOME PXA270 SUPPORT
 M:	Marek Vasut <marek.vasut@gmail.com>
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 7a020c5f985c..68c9688815aa 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -326,19 +326,6 @@ config MACH_CM_T3517
 config MACH_CM_T3730
        bool
 
-config MACH_IGEP0020
-	bool "IGEP v2 board"
-	depends on ARCH_OMAP3
-	default y
-	select OMAP_PACKAGE_CBB
-
-config MACH_IGEP0030
-	bool "IGEP OMAP3 module"
-	depends on ARCH_OMAP3
-	default y
-	select MACH_IGEP0020
-	select OMAP_PACKAGE_CBB
-
 config MACH_SBC3530
 	bool "OMAP3 SBC STALKER board"
 	depends on ARCH_OMAP3
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 449a174ab926..096d6bbcd3bc 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -250,7 +250,6 @@ obj-$(CONFIG_MACH_NOKIA_RX51)		+= board-rx51-peripherals.o
 obj-$(CONFIG_MACH_NOKIA_RX51)		+= board-rx51-video.o
 obj-$(CONFIG_MACH_CM_T35)		+= board-cm-t35.o
 obj-$(CONFIG_MACH_CM_T3517)		+= board-cm-t3517.o
-obj-$(CONFIG_MACH_IGEP0020)		+= board-igep0020.o
 obj-$(CONFIG_MACH_TOUCHBOOK)		+= board-omap3touchbook.o
 
 obj-$(CONFIG_MACH_OMAP3517EVM)		+= board-am3517evm.o
diff --git a/arch/arm/mach-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c
deleted file mode 100644
index d648d50d9d24..000000000000
--- a/arch/arm/mach-omap2/board-igep0020.c
+++ /dev/null
@@ -1,683 +0,0 @@
-/*
- * Copyright (C) 2009 Integration Software and Electronic Engineering.
- *
- * Modified from mach-omap2/board-generic.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/platform_device.h>
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/clk.h>
-#include <linux/io.h>
-#include <linux/gpio.h>
-#include <linux/interrupt.h>
-#include <linux/input.h>
-#include <linux/usb/phy.h>
-
-#include <linux/regulator/machine.h>
-#include <linux/regulator/fixed.h>
-#include <linux/i2c/twl.h>
-#include <linux/mmc/host.h>
-
-#include <linux/mtd/nand.h>
-
-#include <asm/mach-types.h>
-#include <asm/mach/arch.h>
-
-#include <video/omapdss.h>
-#include <video/omap-panel-data.h>
-#include <linux/platform_data/mtd-onenand-omap2.h>
-
-#include "common.h"
-#include "gpmc.h"
-#include "mux.h"
-#include "hsmmc.h"
-#include "sdram-numonyx-m65kxxxxam.h"
-#include "common-board-devices.h"
-#include "board-flash.h"
-#include "control.h"
-#include "gpmc-onenand.h"
-#include "dss-common.h"
-
-#define IGEP2_SMSC911X_CS       5
-#define IGEP2_SMSC911X_GPIO     176
-#define IGEP2_GPIO_USBH_NRESET  24
-#define IGEP2_GPIO_LED0_GREEN   26
-#define IGEP2_GPIO_LED0_RED     27
-#define IGEP2_GPIO_LED1_RED     28
-
-#define IGEP2_RB_GPIO_WIFI_NPD     94
-#define IGEP2_RB_GPIO_WIFI_NRESET  95
-#define IGEP2_RB_GPIO_BT_NRESET    137
-#define IGEP2_RC_GPIO_WIFI_NPD     138
-#define IGEP2_RC_GPIO_WIFI_NRESET  139
-#define IGEP2_RC_GPIO_BT_NRESET    137
-
-#define IGEP3_GPIO_LED0_GREEN	54
-#define IGEP3_GPIO_LED0_RED	53
-#define IGEP3_GPIO_LED1_RED	16
-#define IGEP3_GPIO_USBH_NRESET  183
-
-#define IGEP_SYSBOOT_MASK           0x1f
-#define IGEP_SYSBOOT_NAND           0x0f
-#define IGEP_SYSBOOT_ONENAND        0x10
-
-/*
- * IGEP2 Hardware Revision Table
- *
- *  --------------------------------------------------------------------------
- * | Id. | Hw Rev.            | HW0 (28) | WIFI_NPD | WIFI_NRESET | BT_NRESET |
- *  --------------------------------------------------------------------------
- * |  0  | B                  |   high   |  gpio94  |   gpio95    |     -     |
- * |  0  | B/C (B-compatible) |   high   |  gpio94  |   gpio95    |  gpio137  |
- * |  1  | C                  |   low    |  gpio138 |   gpio139   |  gpio137  |
- *  --------------------------------------------------------------------------
- */
-
-#define IGEP2_BOARD_HWREV_B	0
-#define IGEP2_BOARD_HWREV_C	1
-#define IGEP3_BOARD_HWREV	2
-
-static u8 hwrev;
-
-static void __init igep2_get_revision(void)
-{
-	u8 ret;
-
-	if (machine_is_igep0030()) {
-		hwrev = IGEP3_BOARD_HWREV;
-		return;
-	}
-
-	omap_mux_init_gpio(IGEP2_GPIO_LED1_RED, OMAP_PIN_INPUT);
-
-	if (gpio_request_one(IGEP2_GPIO_LED1_RED, GPIOF_IN, "GPIO_HW0_REV")) {
-		pr_warning("IGEP2: Could not obtain gpio GPIO_HW0_REV\n");
-		pr_err("IGEP2: Unknown Hardware Revision\n");
-		return;
-	}
-
-	ret = gpio_get_value(IGEP2_GPIO_LED1_RED);
-	if (ret == 0) {
-		pr_info("IGEP2: Hardware Revision C (B-NON compatible)\n");
-		hwrev = IGEP2_BOARD_HWREV_C;
-	} else if (ret ==  1) {
-		pr_info("IGEP2: Hardware Revision B/C (B compatible)\n");
-		hwrev = IGEP2_BOARD_HWREV_B;
-	} else {
-		pr_err("IGEP2: Unknown Hardware Revision\n");
-		hwrev = -1;
-	}
-
-	gpio_free(IGEP2_GPIO_LED1_RED);
-}
-
-#if defined(CONFIG_MTD_ONENAND_OMAP2) ||		\
-	defined(CONFIG_MTD_ONENAND_OMAP2_MODULE) ||	\
-	defined(CONFIG_MTD_NAND_OMAP2) ||		\
-	defined(CONFIG_MTD_NAND_OMAP2_MODULE)
-
-#define ONENAND_MAP             0x20000000
-
-/* NAND04GR4E1A ( x2 Flash built-in COMBO POP MEMORY )
- * Since the device is equipped with two DataRAMs, and two-plane NAND
- * Flash memory array, these two component enables simultaneous program
- * of 4KiB. Plane1 has only even blocks such as block0, block2, block4
- * while Plane2 has only odd blocks such as block1, block3, block5.
- * So MTD regards it as 4KiB page size and 256KiB block size 64*(2*2048)
- */
-
-static struct mtd_partition igep_flash_partitions[] = {
-	{
-		.name           = "X-Loader",
-		.offset         = 0,
-		.size           = 2 * (64*(2*2048))
-	},
-	{
-		.name           = "U-Boot",
-		.offset         = MTDPART_OFS_APPEND,
-		.size           = 6 * (64*(2*2048)),
-	},
-	{
-		.name           = "Environment",
-		.offset         = MTDPART_OFS_APPEND,
-		.size           = 2 * (64*(2*2048)),
-	},
-	{
-		.name           = "Kernel",
-		.offset         = MTDPART_OFS_APPEND,
-		.size           = 12 * (64*(2*2048)),
-	},
-	{
-		.name           = "File System",
-		.offset         = MTDPART_OFS_APPEND,
-		.size           = MTDPART_SIZ_FULL,
-	},
-};
-
-static inline u32 igep_get_sysboot_value(void)
-{
-	return omap_ctrl_readl(OMAP343X_CONTROL_STATUS) & IGEP_SYSBOOT_MASK;
-}
-
-static void __init igep_flash_init(void)
-{
-	u32 mux;
-	mux = igep_get_sysboot_value();
-
-	if (mux == IGEP_SYSBOOT_NAND) {
-		pr_info("IGEP: initializing NAND memory device\n");
-		board_nand_init(igep_flash_partitions,
-				ARRAY_SIZE(igep_flash_partitions),
-				0, NAND_BUSWIDTH_16, nand_default_timings);
-	} else if (mux == IGEP_SYSBOOT_ONENAND) {
-		pr_info("IGEP: initializing OneNAND memory device\n");
-		board_onenand_init(igep_flash_partitions,
-				   ARRAY_SIZE(igep_flash_partitions), 0);
-	} else {
-		pr_err("IGEP: Flash: unsupported sysboot sequence found\n");
-	}
-}
-
-#else
-static void __init igep_flash_init(void) {}
-#endif
-
-#if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
-
-#include <linux/smsc911x.h>
-#include "gpmc-smsc911x.h"
-
-static struct omap_smsc911x_platform_data smsc911x_cfg = {
-	.cs             = IGEP2_SMSC911X_CS,
-	.gpio_irq       = IGEP2_SMSC911X_GPIO,
-	.gpio_reset     = -EINVAL,
-	.flags		= SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS,
-};
-
-static inline void __init igep2_init_smsc911x(void)
-{
-	gpmc_smsc911x_init(&smsc911x_cfg);
-}
-
-#else
-static inline void __init igep2_init_smsc911x(void) { }
-#endif
-
-static struct regulator_consumer_supply igep_vmmc1_supply[] = {
-	REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
-};
-
-/* VMMC1 for OMAP VDD_MMC1 (i/o) and MMC1 card */
-static struct regulator_init_data igep_vmmc1 = {
-	.constraints = {
-		.min_uV			= 1850000,
-		.max_uV			= 3150000,
-		.valid_modes_mask	= REGULATOR_MODE_NORMAL
-					| REGULATOR_MODE_STANDBY,
-		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
-					| REGULATOR_CHANGE_MODE
-					| REGULATOR_CHANGE_STATUS,
-	},
-	.num_consumer_supplies  = ARRAY_SIZE(igep_vmmc1_supply),
-	.consumer_supplies      = igep_vmmc1_supply,
-};
-
-static struct regulator_consumer_supply igep_vio_supply[] = {
-	REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.1"),
-};
-
-static struct regulator_init_data igep_vio = {
-	.constraints = {
-		.min_uV			= 1800000,
-		.max_uV			= 1800000,
-		.apply_uV		= 1,
-		.valid_modes_mask	= REGULATOR_MODE_NORMAL
-					| REGULATOR_MODE_STANDBY,
-		.valid_ops_mask		= REGULATOR_CHANGE_VOLTAGE
-					| REGULATOR_CHANGE_MODE
-					| REGULATOR_CHANGE_STATUS,
-	},
-	.num_consumer_supplies  = ARRAY_SIZE(igep_vio_supply),
-	.consumer_supplies      = igep_vio_supply,
-};
-
-static struct regulator_consumer_supply igep_vmmc2_supply[] = {
-	REGULATOR_SUPPLY("vmmc", "omap_hsmmc.1"),
-};
-
-static struct regulator_init_data igep_vmmc2 = {
-	.constraints		= {
-		.valid_modes_mask	= REGULATOR_MODE_NORMAL,
-		.always_on		= 1,
-	},
-	.num_consumer_supplies	= ARRAY_SIZE(igep_vmmc2_supply),
-	.consumer_supplies	= igep_vmmc2_supply,
-};
-
-static struct fixed_voltage_config igep_vwlan = {
-	.supply_name		= "vwlan",
-	.microvolts		= 3300000,
-	.gpio			= -EINVAL,
-	.enabled_at_boot	= 1,
-	.init_data		= &igep_vmmc2,
-};
-
-static struct platform_device igep_vwlan_device = {
-	.name		= "reg-fixed-voltage",
-	.id		= 0,
-	.dev = {
-		.platform_data	= &igep_vwlan,
-	},
-};
-
-static struct omap2_hsmmc_info mmc[] = {
-	{
-		.mmc		= 1,
-		.caps		= MMC_CAP_4_BIT_DATA,
-		.gpio_cd	= -EINVAL,
-		.gpio_wp	= -EINVAL,
-		.deferred	= true,
-	},
-#if defined(CONFIG_LIBERTAS_SDIO) || defined(CONFIG_LIBERTAS_SDIO_MODULE)
-	{
-		.mmc		= 2,
-		.caps		= MMC_CAP_4_BIT_DATA,
-		.gpio_cd	= -EINVAL,
-		.gpio_wp	= -EINVAL,
-	},
-#endif
-	{}      /* Terminator */
-};
-
-#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
-#include <linux/leds.h>
-
-static struct gpio_led igep_gpio_leds[] = {
-	[0] = {
-		.name			= "omap3:red:user0",
-		.default_state		= 0,
-	},
-	[1] = {
-		.name			= "omap3:green:boot",
-		.default_state		= 1,
-	},
-	[2] = {
-		.name			= "omap3:red:user1",
-		.default_state		= 0,
-	},
-	[3] = {
-		.name			= "omap3:green:user1",
-		.default_state		= 0,
-		.gpio			= -EINVAL, /* gets replaced */
-		.active_low		= 1,
-	},
-};
-
-static struct gpio_led_platform_data igep_led_pdata = {
-	.leds           = igep_gpio_leds,
-	.num_leds       = ARRAY_SIZE(igep_gpio_leds),
-};
-
-static struct platform_device igep_led_device = {
-	 .name   = "leds-gpio",
-	 .id     = -1,
-	 .dev    = {
-		 .platform_data  =  &igep_led_pdata,
-	},
-};
-
-static void __init igep_leds_init(void)
-{
-	if (machine_is_igep0020()) {
-		igep_gpio_leds[0].gpio = IGEP2_GPIO_LED0_RED;
-		igep_gpio_leds[1].gpio = IGEP2_GPIO_LED0_GREEN;
-		igep_gpio_leds[2].gpio = IGEP2_GPIO_LED1_RED;
-	} else {
-		igep_gpio_leds[0].gpio = IGEP3_GPIO_LED0_RED;
-		igep_gpio_leds[1].gpio = IGEP3_GPIO_LED0_GREEN;
-		igep_gpio_leds[2].gpio = IGEP3_GPIO_LED1_RED;
-	}
-
-	platform_device_register(&igep_led_device);
-}
-
-#else
-static struct gpio igep_gpio_leds[] __initdata = {
-	{ -EINVAL,	GPIOF_OUT_INIT_LOW, "gpio-led:red:d0"   },
-	{ -EINVAL,	GPIOF_OUT_INIT_LOW, "gpio-led:green:d0" },
-	{ -EINVAL,	GPIOF_OUT_INIT_LOW, "gpio-led:red:d1"   },
-};
-
-static inline void igep_leds_init(void)
-{
-	int i;
-
-	if (machine_is_igep0020()) {
-		igep_gpio_leds[0].gpio = IGEP2_GPIO_LED0_RED;
-		igep_gpio_leds[1].gpio = IGEP2_GPIO_LED0_GREEN;
-		igep_gpio_leds[2].gpio = IGEP2_GPIO_LED1_RED;
-	} else {
-		igep_gpio_leds[0].gpio = IGEP3_GPIO_LED0_RED;
-		igep_gpio_leds[1].gpio = IGEP3_GPIO_LED0_GREEN;
-		igep_gpio_leds[2].gpio = IGEP3_GPIO_LED1_RED;
-	}
-
-	if (gpio_request_array(igep_gpio_leds, ARRAY_SIZE(igep_gpio_leds))) {
-		pr_warning("IGEP v2: Could not obtain leds gpios\n");
-		return;
-	}
-
-	for (i = 0; i < ARRAY_SIZE(igep_gpio_leds); i++)
-		gpio_export(igep_gpio_leds[i].gpio, 0);
-}
-#endif
-
-static struct gpio igep2_twl_gpios[] = {
-	{ -EINVAL, GPIOF_IN,		"GPIO_EHCI_NOC"  },
-	{ -EINVAL, GPIOF_OUT_INIT_LOW,	"GPIO_USBH_CPEN" },
-};
-
-static int igep_twl_gpio_setup(struct device *dev,
-		unsigned gpio, unsigned ngpio)
-{
-	int ret;
-
-	/* gpio + 0 is "mmc0_cd" (input/IRQ) */
-	mmc[0].gpio_cd = gpio + 0;
-	omap_hsmmc_late_init(mmc);
-
-	/* TWL4030_GPIO_MAX + 1 == ledB (out, active low LED) */
-#if !defined(CONFIG_LEDS_GPIO) && !defined(CONFIG_LEDS_GPIO_MODULE)
-	ret = gpio_request_one(gpio + TWL4030_GPIO_MAX + 1, GPIOF_OUT_INIT_HIGH,
-			       "gpio-led:green:d1");
-	if (ret == 0)
-		gpio_export(gpio + TWL4030_GPIO_MAX + 1, 0);
-	else
-		pr_warning("IGEP: Could not obtain gpio GPIO_LED1_GREEN\n");
-#else
-	igep_gpio_leds[3].gpio = gpio + TWL4030_GPIO_MAX + 1;
-#endif
-
-	if (machine_is_igep0030())
-		return 0;
-
-	/*
-	 * REVISIT: need ehci-omap hooks for external VBUS
-	 * power switch and overcurrent detect
-	 */
-	igep2_twl_gpios[0].gpio = gpio + 1;
-
-	/* TWL4030_GPIO_MAX + 0 == ledA, GPIO_USBH_CPEN (out, active low) */
-	igep2_twl_gpios[1].gpio = gpio + TWL4030_GPIO_MAX;
-
-	ret = gpio_request_array(igep2_twl_gpios, ARRAY_SIZE(igep2_twl_gpios));
-	if (ret < 0)
-		pr_err("IGEP2: Could not obtain gpio for USBH_CPEN");
-
-	return 0;
-};
-
-static struct twl4030_gpio_platform_data igep_twl4030_gpio_pdata = {
-	.use_leds	= true,
-	.setup		= igep_twl_gpio_setup,
-};
-
-static int igep2_keymap[] = {
-	KEY(0, 0, KEY_LEFT),
-	KEY(0, 1, KEY_RIGHT),
-	KEY(0, 2, KEY_A),
-	KEY(0, 3, KEY_B),
-	KEY(1, 0, KEY_DOWN),
-	KEY(1, 1, KEY_UP),
-	KEY(1, 2, KEY_E),
-	KEY(1, 3, KEY_F),
-	KEY(2, 0, KEY_ENTER),
-	KEY(2, 1, KEY_I),
-	KEY(2, 2, KEY_J),
-	KEY(2, 3, KEY_K),
-	KEY(3, 0, KEY_M),
-	KEY(3, 1, KEY_N),
-	KEY(3, 2, KEY_O),
-	KEY(3, 3, KEY_P)
-};
-
-static struct matrix_keymap_data igep2_keymap_data = {
-	.keymap			= igep2_keymap,
-	.keymap_size		= ARRAY_SIZE(igep2_keymap),
-};
-
-static struct twl4030_keypad_data igep2_keypad_pdata = {
-	.keymap_data	= &igep2_keymap_data,
-	.rows		= 4,
-	.cols		= 4,
-	.rep		= 1,
-};
-
-static struct twl4030_platform_data igep_twldata = {
-	/* platform_data for children goes here */
-	.gpio		= &igep_twl4030_gpio_pdata,
-	.vmmc1          = &igep_vmmc1,
-	.vio		= &igep_vio,
-};
-
-static struct i2c_board_info __initdata igep2_i2c3_boardinfo[] = {
-	{
-		I2C_BOARD_INFO("eeprom", 0x50),
-	},
-};
-
-static void __init igep_i2c_init(void)
-{
-	int ret;
-
-	omap3_pmic_get_config(&igep_twldata, TWL_COMMON_PDATA_USB,
-			      TWL_COMMON_REGULATOR_VPLL2);
-	igep_twldata.vpll2->constraints.apply_uV = true;
-	igep_twldata.vpll2->constraints.name = "VDVI";
-
-	if (machine_is_igep0020()) {
-		/*
-		 * Bus 3 is attached to the DVI port where devices like the
-		 * pico DLP projector don't work reliably with 400kHz
-		 */
-		ret = omap_register_i2c_bus(3, 100, igep2_i2c3_boardinfo,
-					    ARRAY_SIZE(igep2_i2c3_boardinfo));
-		if (ret)
-			pr_warning("IGEP2: Could not register I2C3 bus (%d)\n", ret);
-
-		igep_twldata.keypad	= &igep2_keypad_pdata;
-		/* Get common pmic data */
-		omap3_pmic_get_config(&igep_twldata, TWL_COMMON_PDATA_AUDIO, 0);
-	}
-
-	omap3_pmic_init("twl4030", &igep_twldata);
-}
-
-static struct usbhs_phy_data igep2_phy_data[] __initdata = {
-	{
-		.port = 1,
-		.reset_gpio = IGEP2_GPIO_USBH_NRESET,
-		.vcc_gpio = -EINVAL,
-	},
-};
-
-static struct usbhs_phy_data igep3_phy_data[] __initdata = {
-	{
-		.port = 2,
-		.reset_gpio = IGEP3_GPIO_USBH_NRESET,
-		.vcc_gpio = -EINVAL,
-	},
-};
-
-static struct usbhs_omap_platform_data igep2_usbhs_bdata __initdata = {
-	.port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
-};
-
-static struct usbhs_omap_platform_data igep3_usbhs_bdata __initdata = {
-	.port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
-};
-
-#ifdef CONFIG_OMAP_MUX
-static struct omap_board_mux board_mux[] __initdata = {
-	/* Display Sub System */
-	OMAP3_MUX(DSS_PCLK, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_HSYNC, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_VSYNC, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_ACBIAS, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA0, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA1, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA2, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA3, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA4, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA5, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA6, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA7, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA8, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA9, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA10, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA11, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA12, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA13, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA14, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA15, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA16, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA17, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA18, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA19, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA20, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA21, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA22, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	OMAP3_MUX(DSS_DATA23, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT),
-	/* TFP410 PanelBus DVI Transmitte (GPIO_170) */
-	OMAP3_MUX(HDQ_SIO, OMAP_MUX_MODE4 | OMAP_PIN_OUTPUT),
-	/* SMSC9221 LAN Controller ETH IRQ (GPIO_176) */
-	OMAP3_MUX(MCSPI1_CS2, OMAP_MUX_MODE4 | OMAP_PIN_INPUT),
-	{ .reg_offset = OMAP_MUX_TERMINATOR },
-};
-#endif
-
-#if defined(CONFIG_LIBERTAS_SDIO) || defined(CONFIG_LIBERTAS_SDIO_MODULE)
-static struct gpio igep_wlan_bt_gpios[] __initdata = {
-	{ -EINVAL, GPIOF_OUT_INIT_HIGH, "GPIO_WIFI_NPD"	   },
-	{ -EINVAL, GPIOF_OUT_INIT_HIGH, "GPIO_WIFI_NRESET" },
-	{ -EINVAL, GPIOF_OUT_INIT_HIGH, "GPIO_BT_NRESET"   },
-};
-
-static void __init igep_wlan_bt_init(void)
-{
-	int err;
-
-	/* GPIO's for WLAN-BT combo depends on hardware revision */
-	if (hwrev == IGEP2_BOARD_HWREV_B) {
-		igep_wlan_bt_gpios[0].gpio = IGEP2_RB_GPIO_WIFI_NPD;
-		igep_wlan_bt_gpios[1].gpio = IGEP2_RB_GPIO_WIFI_NRESET;
-		igep_wlan_bt_gpios[2].gpio = IGEP2_RB_GPIO_BT_NRESET;
-	} else if (hwrev == IGEP2_BOARD_HWREV_C || machine_is_igep0030()) {
-		igep_wlan_bt_gpios[0].gpio = IGEP2_RC_GPIO_WIFI_NPD;
-		igep_wlan_bt_gpios[1].gpio = IGEP2_RC_GPIO_WIFI_NRESET;
-		igep_wlan_bt_gpios[2].gpio = IGEP2_RC_GPIO_BT_NRESET;
-	} else
-		return;
-
-	/* Make sure that the GPIO pins are muxed correctly */
-	omap_mux_init_gpio(igep_wlan_bt_gpios[0].gpio, OMAP_PIN_OUTPUT);
-	omap_mux_init_gpio(igep_wlan_bt_gpios[1].gpio, OMAP_PIN_OUTPUT);
-	omap_mux_init_gpio(igep_wlan_bt_gpios[2].gpio, OMAP_PIN_OUTPUT);
-
-	err = gpio_request_array(igep_wlan_bt_gpios,
-				 ARRAY_SIZE(igep_wlan_bt_gpios));
-	if (err) {
-		pr_warning("IGEP2: Could not obtain WIFI/BT gpios\n");
-		return;
-	}
-
-	gpio_export(igep_wlan_bt_gpios[0].gpio, 0);
-	gpio_export(igep_wlan_bt_gpios[1].gpio, 0);
-	gpio_export(igep_wlan_bt_gpios[2].gpio, 0);
-
-	gpio_set_value(igep_wlan_bt_gpios[1].gpio, 0);
-	udelay(10);
-	gpio_set_value(igep_wlan_bt_gpios[1].gpio, 1);
-
-}
-#else
-static inline void __init igep_wlan_bt_init(void) { }
-#endif
-
-static struct regulator_consumer_supply dummy_supplies[] = {
-	REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
-	REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
-};
-
-static void __init igep_init(void)
-{
-	regulator_register_fixed(1, dummy_supplies, ARRAY_SIZE(dummy_supplies));
-	omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
-
-	/* Get IGEP2 hardware revision */
-	igep2_get_revision();
-
-	omap_hsmmc_init(mmc);
-
-	/* Register I2C busses and drivers */
-	igep_i2c_init();
-	platform_device_register(&igep_vwlan_device);
-	omap3_igep2_display_init_of();
-	omap_serial_init();
-	omap_sdrc_init(m65kxxxxam_sdrc_params,
-				  m65kxxxxam_sdrc_params);
-	usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
-	usb_musb_init(NULL);
-
-	igep_flash_init();
-	igep_leds_init();
-	omap_twl4030_audio_init("igep2", NULL);
-
-	/*
-	 * WLAN-BT combo module from MuRata which has a Marvell WLAN
-	 * (88W8686) + CSR Bluetooth chipset. Uses SDIO interface.
-	 */
-	igep_wlan_bt_init();
-
-	if (machine_is_igep0020()) {
-		igep2_init_smsc911x();
-		usbhs_init_phys(igep2_phy_data, ARRAY_SIZE(igep2_phy_data));
-		usbhs_init(&igep2_usbhs_bdata);
-	} else {
-		usbhs_init_phys(igep3_phy_data, ARRAY_SIZE(igep3_phy_data));
-		usbhs_init(&igep3_usbhs_bdata);
-	}
-}
-
-MACHINE_START(IGEP0020, "IGEP v2 board")
-	.atag_offset	= 0x100,
-	.reserve	= omap_reserve,
-	.map_io		= omap3_map_io,
-	.init_early	= omap35xx_init_early,
-	.init_irq	= omap3_init_irq,
-	.handle_irq	= omap3_intc_handle_irq,
-	.init_machine	= igep_init,
-	.init_late	= omap35xx_init_late,
-	.init_time	= omap3_sync32k_timer_init,
-	.restart	= omap3xxx_restart,
-MACHINE_END
-
-MACHINE_START(IGEP0030, "IGEP OMAP3 module")
-	.atag_offset	= 0x100,
-	.reserve	= omap_reserve,
-	.map_io		= omap3_map_io,
-	.init_early	= omap35xx_init_early,
-	.init_irq	= omap3_init_irq,
-	.handle_irq	= omap3_intc_handle_irq,
-	.init_machine	= igep_init,
-	.init_late	= omap35xx_init_late,
-	.init_time	= omap3_sync32k_timer_init,
-	.restart	= omap3xxx_restart,
-MACHINE_END
-- 
cgit 


From 28be6e07e8bccee76b51bca8fdba52c1b28fc77c Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 18 Oct 2013 10:36:17 -0700
Subject: tcp: rename tcp_tso_segment()

Rename tcp_tso_segment() to tcp_gso_segment(), to better reflect
what is going on, and ease grep games.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/tcp.h        | 2 +-
 net/ipv4/tcp_offload.c   | 6 +++---
 net/ipv6/tcpv6_offload.c | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 1db3a016bff6..372dcccfeed0 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1548,7 +1548,7 @@ extern struct request_sock_ops tcp6_request_sock_ops;
 
 void tcp_v4_destroy_sock(struct sock *sk);
 
-struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
+struct sk_buff *tcp_gso_segment(struct sk_buff *skb,
 				netdev_features_t features);
 struct sk_buff **tcp_gro_receive(struct sk_buff **head, struct sk_buff *skb);
 int tcp_gro_complete(struct sk_buff *skb);
diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c
index 3a7525e6c086..8e3113f46ec1 100644
--- a/net/ipv4/tcp_offload.c
+++ b/net/ipv4/tcp_offload.c
@@ -14,7 +14,7 @@
 #include <net/tcp.h>
 #include <net/protocol.h>
 
-struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
+struct sk_buff *tcp_gso_segment(struct sk_buff *skb,
 				netdev_features_t features)
 {
 	struct sk_buff *segs = ERR_PTR(-EINVAL);
@@ -139,7 +139,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
 out:
 	return segs;
 }
-EXPORT_SYMBOL(tcp_tso_segment);
+EXPORT_SYMBOL(tcp_gso_segment);
 
 struct sk_buff **tcp_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 {
@@ -320,7 +320,7 @@ static int tcp4_gro_complete(struct sk_buff *skb)
 static const struct net_offload tcpv4_offload = {
 	.callbacks = {
 		.gso_send_check	=	tcp_v4_gso_send_check,
-		.gso_segment	=	tcp_tso_segment,
+		.gso_segment	=	tcp_gso_segment,
 		.gro_receive	=	tcp4_gro_receive,
 		.gro_complete	=	tcp4_gro_complete,
 	},
diff --git a/net/ipv6/tcpv6_offload.c b/net/ipv6/tcpv6_offload.c
index 2ec6bf6a0aa0..c1097c798900 100644
--- a/net/ipv6/tcpv6_offload.c
+++ b/net/ipv6/tcpv6_offload.c
@@ -83,7 +83,7 @@ static int tcp6_gro_complete(struct sk_buff *skb)
 static const struct net_offload tcpv6_offload = {
 	.callbacks = {
 		.gso_send_check	=	tcp_v6_gso_send_check,
-		.gso_segment	=	tcp_tso_segment,
+		.gso_segment	=	tcp_gso_segment,
 		.gro_receive	=	tcp6_gro_receive,
 		.gro_complete	=	tcp6_gro_complete,
 	},
-- 
cgit 


From 7ede612fd615abcda0cc30e5bef2a70f4cf4f75c Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Mon, 14 Oct 2013 21:18:48 +0200
Subject: ath5k: fix regression in tx status processing

The regression was introduced in the following commit:

0967e01e8e713ed2982fb4eba8ba13794e9a6e89
"ath5k: make use of the new rate control API"

ath5k_tx_frame_completed saves the intended per-rate retry counts before
they are cleared by ieee80211_tx_info_clear_status, however at this
point the information in info->status.rates is incomplete.

This causes significant throughput degradation and excessive packet loss
on links where high bit rates don't work properly.

Move the copy from bf->rates a few lines up to ensure that the saved
retry counts are updated, and that they are really cleared in
info->status.rates after the call to ieee80211_tx_info_clear_status.

Cc: stable@vger.kernel.org # 3.10+
Cc: Thomas Huehn <thomas@net.t-labs.tu-berlin.de>
Cc: Benjamin Vahl <bvahl@net.t-labs.tu-berlin.de>
Reported-by: Ben West <ben@gowasabi.net>
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Thomas Huehn <thomas@net.t-labs.tu-berlin.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath5k/base.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 48161edec8de..69f58b073e85 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -1663,15 +1663,15 @@ ath5k_tx_frame_completed(struct ath5k_hw *ah, struct sk_buff *skb,
 	ah->stats.tx_bytes_count += skb->len;
 	info = IEEE80211_SKB_CB(skb);
 
+	size = min_t(int, sizeof(info->status.rates), sizeof(bf->rates));
+	memcpy(info->status.rates, bf->rates, size);
+
 	tries[0] = info->status.rates[0].count;
 	tries[1] = info->status.rates[1].count;
 	tries[2] = info->status.rates[2].count;
 
 	ieee80211_tx_info_clear_status(info);
 
-	size = min_t(int, sizeof(info->status.rates), sizeof(bf->rates));
-	memcpy(info->status.rates, bf->rates, size);
-
 	for (i = 0; i < ts->ts_final_idx; i++) {
 		struct ieee80211_tx_rate *r =
 			&info->status.rates[i];
-- 
cgit 


From 2bf127a5cc372b9319afcbae10b090663b621c8b Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Tue, 15 Oct 2013 14:28:48 +0200
Subject: rt2400pci: fix RSSI read

RSSI value is provided on word3 not on word2.

Cc: stable@vger.kernel.org
Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2400pci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rt2x00/rt2400pci.c b/drivers/net/wireless/rt2x00/rt2400pci.c
index 3d53a09da5a1..38ed9a3e44c8 100644
--- a/drivers/net/wireless/rt2x00/rt2400pci.c
+++ b/drivers/net/wireless/rt2x00/rt2400pci.c
@@ -1261,7 +1261,7 @@ static void rt2400pci_fill_rxdone(struct queue_entry *entry,
 	 */
 	rxdesc->timestamp = ((u64)rx_high << 32) | rx_low;
 	rxdesc->signal = rt2x00_get_field32(word2, RXD_W2_SIGNAL) & ~0x08;
-	rxdesc->rssi = rt2x00_get_field32(word2, RXD_W3_RSSI) -
+	rxdesc->rssi = rt2x00_get_field32(word3, RXD_W3_RSSI) -
 	    entry->queue->rt2x00dev->rssi_offset;
 	rxdesc->size = rt2x00_get_field32(word0, RXD_W0_DATABYTE_COUNT);
 
-- 
cgit 


From 5671ab05cf2a579218985ef56595387932d78ee4 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <stf_xl@wp.pl>
Date: Tue, 15 Oct 2013 14:31:12 +0200
Subject: rt2x00: check if device is still available on rt2x00mac_flush()

Fix random kernel panic with below messages when remove dongle.

[ 2212.355447] BUG: unable to handle kernel NULL pointer dereference at 0000000000000250
[ 2212.355527] IP: [<ffffffffa02667f2>] rt2x00usb_kick_tx_entry+0x12/0x160 [rt2x00usb]
[ 2212.355599] PGD 0
[ 2212.355626] Oops: 0000 [#1] SMP
[ 2212.355664] Modules linked in: rt2800usb rt2x00usb rt2800lib crc_ccitt rt2x00lib mac80211 cfg80211 tun arc4 fuse rfcomm bnep snd_hda_codec_realtek snd_hda_intel snd_hda_codec btusb uvcvideo bluetooth snd_hwdep x86_pkg_temp_thermal snd_seq coretemp aesni_intel aes_x86_64 snd_seq_device glue_helper snd_pcm ablk_helper videobuf2_vmalloc sdhci_pci videobuf2_memops videobuf2_core sdhci videodev mmc_core serio_raw snd_page_alloc microcode i2c_i801 snd_timer hid_multitouch thinkpad_acpi lpc_ich mfd_core snd tpm_tis wmi tpm tpm_bios soundcore acpi_cpufreq i915 i2c_algo_bit drm_kms_helper drm i2c_core video [last unloaded: cfg80211]
[ 2212.356224] CPU: 0 PID: 34 Comm: khubd Not tainted 3.12.0-rc3-wl+ #3
[ 2212.356268] Hardware name: LENOVO 3444CUU/3444CUU, BIOS G6ET93WW (2.53 ) 02/04/2013
[ 2212.356319] task: ffff880212f687c0 ti: ffff880212f66000 task.ti: ffff880212f66000
[ 2212.356392] RIP: 0010:[<ffffffffa02667f2>]  [<ffffffffa02667f2>] rt2x00usb_kick_tx_entry+0x12/0x160 [rt2x00usb]
[ 2212.356481] RSP: 0018:ffff880212f67750  EFLAGS: 00010202
[ 2212.356519] RAX: 000000000000000c RBX: 000000000000000c RCX: 0000000000000293
[ 2212.356568] RDX: ffff8801f4dc219a RSI: 0000000000000000 RDI: 0000000000000240
[ 2212.356617] RBP: ffff880212f67778 R08: ffffffffa02667e0 R09: 0000000000000002
[ 2212.356665] R10: 0001f95254ab4b40 R11: ffff880212f675be R12: ffff8801f4dc2150
[ 2212.356712] R13: 0000000000000000 R14: ffffffffa02667e0 R15: 000000000000000d
[ 2212.356761] FS:  0000000000000000(0000) GS:ffff88021e200000(0000) knlGS:0000000000000000
[ 2212.356813] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 2212.356852] CR2: 0000000000000250 CR3: 0000000001a0c000 CR4: 00000000001407f0
[ 2212.356899] Stack:
[ 2212.356917]  000000000000000c ffff8801f4dc2150 0000000000000000 ffffffffa02667e0
[ 2212.356980]  000000000000000d ffff880212f677b8 ffffffffa03a31ad ffff8801f4dc219a
[ 2212.357038]  ffff8801f4dc2150 0000000000000000 ffff8800b93217a0 ffff8801f49bc800
[ 2212.357099] Call Trace:
[ 2212.357122]  [<ffffffffa02667e0>] ? rt2x00usb_interrupt_txdone+0x90/0x90 [rt2x00usb]
[ 2212.357174]  [<ffffffffa03a31ad>] rt2x00queue_for_each_entry+0xed/0x170 [rt2x00lib]
[ 2212.357244]  [<ffffffffa026701c>] rt2x00usb_kick_queue+0x5c/0x60 [rt2x00usb]
[ 2212.357314]  [<ffffffffa03a3682>] rt2x00queue_flush_queue+0x62/0xa0 [rt2x00lib]
[ 2212.357386]  [<ffffffffa03a2930>] rt2x00mac_flush+0x30/0x70 [rt2x00lib]
[ 2212.357470]  [<ffffffffa04edded>] ieee80211_flush_queues+0xbd/0x140 [mac80211]
[ 2212.357555]  [<ffffffffa0502e52>] ieee80211_set_disassoc+0x2d2/0x3d0 [mac80211]
[ 2212.357645]  [<ffffffffa0506da3>] ieee80211_mgd_deauth+0x1d3/0x240 [mac80211]
[ 2212.357718]  [<ffffffff8108b17c>] ? try_to_wake_up+0xec/0x290
[ 2212.357788]  [<ffffffffa04dbd18>] ieee80211_deauth+0x18/0x20 [mac80211]
[ 2212.357872]  [<ffffffffa0418ddc>] cfg80211_mlme_deauth+0x9c/0x140 [cfg80211]
[ 2212.357913]  [<ffffffffa041907c>] cfg80211_mlme_down+0x5c/0x60 [cfg80211]
[ 2212.357962]  [<ffffffffa041cd18>] cfg80211_disconnect+0x188/0x1a0 [cfg80211]
[ 2212.358014]  [<ffffffffa04013bc>] ? __cfg80211_stop_sched_scan+0x1c/0x130 [cfg80211]
[ 2212.358067]  [<ffffffffa03f8954>] cfg80211_leave+0xc4/0xe0 [cfg80211]
[ 2212.358124]  [<ffffffffa03f8d1b>] cfg80211_netdev_notifier_call+0x3ab/0x5e0 [cfg80211]
[ 2212.358177]  [<ffffffff815140f8>] ? inetdev_event+0x38/0x510
[ 2212.358217]  [<ffffffff81085a94>] ? __wake_up+0x44/0x50
[ 2212.358254]  [<ffffffff8155995c>] notifier_call_chain+0x4c/0x70
[ 2212.358293]  [<ffffffff81081156>] raw_notifier_call_chain+0x16/0x20
[ 2212.358361]  [<ffffffff814b6dd5>] call_netdevice_notifiers_info+0x35/0x60
[ 2212.358429]  [<ffffffff814b6ec9>] __dev_close_many+0x49/0xd0
[ 2212.358487]  [<ffffffff814b7028>] dev_close_many+0x88/0x100
[ 2212.358546]  [<ffffffff814b8150>] rollback_registered_many+0xb0/0x220
[ 2212.358612]  [<ffffffff814b8319>] unregister_netdevice_many+0x19/0x60
[ 2212.358694]  [<ffffffffa04d8eb2>] ieee80211_remove_interfaces+0x112/0x190 [mac80211]
[ 2212.358791]  [<ffffffffa04c585f>] ieee80211_unregister_hw+0x4f/0x100 [mac80211]
[ 2212.361994]  [<ffffffffa03a1221>] rt2x00lib_remove_dev+0x161/0x1a0 [rt2x00lib]
[ 2212.365240]  [<ffffffffa0266e2e>] rt2x00usb_disconnect+0x2e/0x70 [rt2x00usb]
[ 2212.368470]  [<ffffffff81419ce4>] usb_unbind_interface+0x64/0x1c0
[ 2212.371734]  [<ffffffff813b446f>] __device_release_driver+0x7f/0xf0
[ 2212.374999]  [<ffffffff813b4503>] device_release_driver+0x23/0x30
[ 2212.378131]  [<ffffffff813b3c98>] bus_remove_device+0x108/0x180
[ 2212.381358]  [<ffffffff813b0565>] device_del+0x135/0x1d0
[ 2212.384454]  [<ffffffff81417760>] usb_disable_device+0xb0/0x270
[ 2212.387451]  [<ffffffff8140d9cd>] usb_disconnect+0xad/0x1d0
[ 2212.390294]  [<ffffffff8140f6cd>] hub_thread+0x63d/0x1660
[ 2212.393034]  [<ffffffff8107c860>] ? wake_up_atomic_t+0x30/0x30
[ 2212.395728]  [<ffffffff8140f090>] ? hub_port_debounce+0x130/0x130
[ 2212.398412]  [<ffffffff8107baa0>] kthread+0xc0/0xd0
[ 2212.401058]  [<ffffffff8107b9e0>] ? insert_kthread_work+0x40/0x40
[ 2212.403639]  [<ffffffff8155de3c>] ret_from_fork+0x7c/0xb0
[ 2212.406193]  [<ffffffff8107b9e0>] ? insert_kthread_work+0x40/0x40
[ 2212.408732] Code: 24 58 08 00 00 bf 80 00 00 00 e8 3a c3 e0 e0 5b 41 5c 5d c3 0f 1f 44 00 00 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 <48> 8b 47 10 48 89 fb 4c 8b 6f 28 4c 8b 20 49 8b 04 24 4c 8b 30
[ 2212.414671] RIP  [<ffffffffa02667f2>] rt2x00usb_kick_tx_entry+0x12/0x160 [rt2x00usb]
[ 2212.417646]  RSP <ffff880212f67750>
[ 2212.420547] CR2: 0000000000000250
[ 2212.441024] ---[ end trace 5442918f33832bce ]---

Cc: stable@vger.kernel.org
Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Helmut Schaa <helmut.schaa@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2x00mac.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c
index f883802f3505..ba1de865c892 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
@@ -754,6 +754,9 @@ void rt2x00mac_flush(struct ieee80211_hw *hw, u32 queues, bool drop)
 	struct rt2x00_dev *rt2x00dev = hw->priv;
 	struct data_queue *queue;
 
+	if (!test_bit(DEVICE_STATE_PRESENT, &rt2x00dev->flags))
+		return;
+
 	tx_queue_for_each(rt2x00dev, queue)
 		rt2x00queue_flush_queue(queue, drop);
 }
-- 
cgit 


From 36165fd5b00bf8163f89c21bb16a3e9834555b10 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <sgruszka@redhat.com>
Date: Fri, 18 Oct 2013 11:36:54 +0200
Subject: rt2800usb: slow down TX status polling

Polling TX statuses too frequently has two negative effects. First is
randomly peek CPU usage, causing overall system functioning delays.
Second bad effect is that device is not able to fill TX statuses in
H/W register on some workloads and we get lot of timeouts like below:

ieee80211 phy4: rt2800usb_entry_txstatus_timeout: Warning - TX status timeout for entry 7 in queue 2
ieee80211 phy4: rt2800usb_entry_txstatus_timeout: Warning - TX status timeout for entry 7 in queue 2
ieee80211 phy4: rt2800usb_txdone: Warning - Got TX status for an empty queue 2, dropping

This not only cause flood of messages in dmesg, but also bad throughput,
since rate scaling algorithm can not work optimally.

In the future, we should probably make polling interval be adjusted
automatically, but for now just increase values, this make mentioned
problems gone.

Resolve:
https://bugzilla.kernel.org/show_bug.cgi?id=62781

Cc: stable@vger.kernel.org
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800usb.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index 96961b9a395c..4feb35aef990 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -148,6 +148,8 @@ static bool rt2800usb_txstatus_timeout(struct rt2x00_dev *rt2x00dev)
 	return false;
 }
 
+#define TXSTATUS_READ_INTERVAL 1000000
+
 static bool rt2800usb_tx_sta_fifo_read_completed(struct rt2x00_dev *rt2x00dev,
 						 int urb_status, u32 tx_status)
 {
@@ -176,8 +178,9 @@ static bool rt2800usb_tx_sta_fifo_read_completed(struct rt2x00_dev *rt2x00dev,
 		queue_work(rt2x00dev->workqueue, &rt2x00dev->txdone_work);
 
 	if (rt2800usb_txstatus_pending(rt2x00dev)) {
-		/* Read register after 250 us */
-		hrtimer_start(&rt2x00dev->txstatus_timer, ktime_set(0, 250000),
+		/* Read register after 1 ms */
+		hrtimer_start(&rt2x00dev->txstatus_timer,
+			      ktime_set(0, TXSTATUS_READ_INTERVAL),
 			      HRTIMER_MODE_REL);
 		return false;
 	}
@@ -202,8 +205,9 @@ static void rt2800usb_async_read_tx_status(struct rt2x00_dev *rt2x00dev)
 	if (test_and_set_bit(TX_STATUS_READING, &rt2x00dev->flags))
 		return;
 
-	/* Read TX_STA_FIFO register after 500 us */
-	hrtimer_start(&rt2x00dev->txstatus_timer, ktime_set(0, 500000),
+	/* Read TX_STA_FIFO register after 2 ms */
+	hrtimer_start(&rt2x00dev->txstatus_timer,
+		      ktime_set(0, 2*TXSTATUS_READ_INTERVAL),
 		      HRTIMER_MODE_REL);
 }
 
-- 
cgit 


From 8ce9beac4661f576ea0d518b9f086bb52a171a37 Mon Sep 17 00:00:00 2001
From: Felipe Pena <felipensp@gmail.com>
Date: Wed, 16 Oct 2013 21:40:24 -0300
Subject: drivers: net: wireless: b43: Fix possible NULL ptr dereference

On the ternary expression the 'e' variable could be NULL dereferenced,
when b43_nphy_get_rf_ctl_over_rev7 function returns NULL.

Signed-off-by: Felipe Pena <felipensp@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/b43/phy_n.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/b43/phy_n.c b/drivers/net/wireless/b43/phy_n.c
index 7c970d3ae358..05ee7f10cc8f 100644
--- a/drivers/net/wireless/b43/phy_n.c
+++ b/drivers/net/wireless/b43/phy_n.c
@@ -164,7 +164,8 @@ static void b43_nphy_rf_ctl_override_rev7(struct b43_wldev *dev, u16 field,
 		}
 		en_addr = en_addrs[override][i];
 
-		val_addr = (i == 0) ? e->val_addr_core0 : e->val_addr_core1;
+		if (e)
+			val_addr = (i == 0) ? e->val_addr_core0 : e->val_addr_core1;
 
 		if (off) {
 			b43_phy_mask(dev, en_addr, ~en_mask);
-- 
cgit 


From 9e630955ec01b1a3a5425ede9a17df2f8c8b223b Mon Sep 17 00:00:00 2001
From: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Date: Fri, 18 Oct 2013 12:22:28 -0400
Subject: qlcnic: Print informational messages only once during driver load.

Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic.h        |  1 +
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c    | 12 -----------
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c  | 24 ++++++++++++++++++----
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c   |  1 +
 4 files changed, 22 insertions(+), 16 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index 81bf83604c4f..a3c4379d78f8 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -1199,6 +1199,7 @@ struct qlcnic_npar_info {
 	u8	promisc_mode;
 	u8	offload_flags;
 	u8      pci_func;
+	u8      mac[ETH_ALEN];
 };
 
 struct qlcnic_eswitch {
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index 3ca00e05f23d..66e94dc845f9 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -2321,19 +2321,7 @@ int qlcnic_83xx_get_pci_info(struct qlcnic_adapter *adapter,
 			i++;
 			memcpy(pci_info->mac + sizeof(u32), &cmd.rsp.arg[i], 2);
 			i = i + 3;
-			if (ahw->op_mode == QLCNIC_MGMT_FUNC)
-				dev_info(dev, "id = %d active = %d type = %d\n"
-					 "\tport = %d min bw = %d max bw = %d\n"
-					 "\tmac_addr =  %pM\n", pci_info->id,
-					 pci_info->active, pci_info->type,
-					 pci_info->default_port,
-					 pci_info->tx_min_bw,
-					 pci_info->tx_max_bw, pci_info->mac);
 		}
-		if (ahw->op_mode == QLCNIC_MGMT_FUNC)
-			dev_info(dev, "Max functions = %d, active functions = %d\n",
-				 ahw->max_pci_func, ahw->act_pci_func);
-
 	} else {
 		dev_err(dev, "Failed to get PCI Info, error = %d\n", err);
 		err = -EIO;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
index 0248a4c2f5dd..60a477f10f41 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
@@ -94,13 +94,29 @@ qlcnic_83xx_config_vnic_buff_descriptors(struct qlcnic_adapter *adapter)
  **/
 static int qlcnic_83xx_init_mgmt_vnic(struct qlcnic_adapter *adapter)
 {
-	int err = -EIO;
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
+	struct device *dev = &adapter->pdev->dev;
+	struct qlcnic_npar_info *npar;
+	int i, err = -EIO;
 
 	qlcnic_83xx_get_minidump_template(adapter);
+
 	if (!(adapter->flags & QLCNIC_ADAPTER_INITIALIZED)) {
 		if (qlcnic_init_pci_info(adapter))
 			return err;
 
+		npar = adapter->npars;
+
+		for (i = 0; i < ahw->act_pci_func; i++, npar++) {
+			dev_info(dev, "id:%d active:%d type:%d port:%d min_bw:%d max_bw:%d mac_addr:%pM\n",
+				 npar->pci_func, npar->active, npar->type,
+				 npar->phy_port, npar->min_bw, npar->max_bw,
+				 npar->mac);
+		}
+
+		dev_info(dev, "Max functions = %d, active functions = %d\n",
+			 ahw->max_pci_func, ahw->act_pci_func);
+
 		if (qlcnic_83xx_set_vnic_opmode(adapter))
 			return err;
 
@@ -115,12 +131,12 @@ static int qlcnic_83xx_init_mgmt_vnic(struct qlcnic_adapter *adapter)
 		return err;
 
 	qlcnic_83xx_config_vnic_buff_descriptors(adapter);
-	adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
+	ahw->msix_supported = qlcnic_use_msi_x ? 1 : 0;
 	adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
 	qlcnic_83xx_enable_vnic_mode(adapter, 1);
 
-	dev_info(&adapter->pdev->dev, "HAL Version: %d, Management function\n",
-		 adapter->ahw->fw_hal_version);
+	dev_info(dev, "HAL Version: %d, Management function\n",
+		 ahw->fw_hal_version);
 
 	return 0;
 }
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index f07f2b0fefa0..55e8b2350241 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -875,6 +875,7 @@ int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 		adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
 		adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
 
+		memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
 		j++;
 	}
 
-- 
cgit 


From 710a1a498f22e10dc86c520dd04fb83a19b08771 Mon Sep 17 00:00:00 2001
From: Pratik Pujar <pratik.pujar@qlogic.com>
Date: Fri, 18 Oct 2013 12:22:29 -0400
Subject: qlcnic: Enhance ethtool to display ring indices and interrupt mask

o Updated ethtool -d <ethX> option to display ring indices for Transmit(Tx),
  Receive(Rx), and Status(St) rings.
o Updated ethtool -d <ethX> option to display ring interrupt mask for Transmit(Tx),
  and Status(St) rings.

Signed-off-by: Pratik Pujar <pratik.pujar@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c    |  8 ++--
 .../net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c    | 54 ++++++++++++++++------
 2 files changed, 44 insertions(+), 18 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index 66e94dc845f9..c2df4cea524d 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -3267,12 +3267,12 @@ int qlcnic_83xx_reg_test(struct qlcnic_adapter *adapter)
 	return 0;
 }
 
-int qlcnic_83xx_get_regs_len(struct qlcnic_adapter *adapter)
+inline int qlcnic_83xx_get_regs_len(struct qlcnic_adapter *adapter)
 {
 	return (ARRAY_SIZE(qlcnic_83xx_ext_reg_tbl) *
-		sizeof(adapter->ahw->ext_reg_tbl)) +
-		(ARRAY_SIZE(qlcnic_83xx_reg_tbl) +
-		sizeof(adapter->ahw->reg_tbl));
+		sizeof(*adapter->ahw->ext_reg_tbl)) +
+		(ARRAY_SIZE(qlcnic_83xx_reg_tbl) *
+		sizeof(*adapter->ahw->reg_tbl));
 }
 
 int qlcnic_83xx_get_registers(struct qlcnic_adapter *adapter, u32 *regs_buff)
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
index ebe4c86e5230..66355b72818c 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
@@ -187,8 +187,8 @@ static int qlcnic_dev_statistics_len(struct qlcnic_adapter *adapter)
 		return -1;
 }
 
-#define QLCNIC_RING_REGS_COUNT	20
-#define QLCNIC_RING_REGS_LEN	(QLCNIC_RING_REGS_COUNT * sizeof(u32))
+#define	QLCNIC_TX_INTR_NOT_CONFIGURED	0X78563412
+
 #define QLCNIC_MAX_EEPROM_LEN   1024
 
 static const u32 diag_registers[] = {
@@ -219,7 +219,15 @@ static const u32 ext_diag_registers[] = {
 };
 
 #define QLCNIC_MGMT_API_VERSION	2
-#define QLCNIC_ETHTOOL_REGS_VER	3
+#define QLCNIC_ETHTOOL_REGS_VER	4
+
+static inline int qlcnic_get_ring_regs_len(struct qlcnic_adapter *adapter)
+{
+	int ring_regs_cnt = (adapter->max_drv_tx_rings * 5) +
+			    (adapter->max_rds_rings * 2) +
+			    (adapter->max_sds_rings * 3) + 5;
+	return ring_regs_cnt * sizeof(u32);
+}
 
 static int qlcnic_get_regs_len(struct net_device *dev)
 {
@@ -231,7 +239,9 @@ static int qlcnic_get_regs_len(struct net_device *dev)
 	else
 		len = sizeof(ext_diag_registers) + sizeof(diag_registers);
 
-	return QLCNIC_RING_REGS_LEN + len + QLCNIC_DEV_INFO_SIZE + 1;
+	len += ((QLCNIC_DEV_INFO_SIZE + 2) * sizeof(u32));
+	len += qlcnic_get_ring_regs_len(adapter);
+	return len;
 }
 
 static int qlcnic_get_eeprom_len(struct net_device *dev)
@@ -493,6 +503,8 @@ qlcnic_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *p)
 	struct qlcnic_adapter *adapter = netdev_priv(dev);
 	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
 	struct qlcnic_host_sds_ring *sds_ring;
+	struct qlcnic_host_rds_ring *rds_rings;
+	struct qlcnic_host_tx_ring *tx_ring;
 	u32 *regs_buff = p;
 	int ring, i = 0;
 
@@ -512,21 +524,35 @@ qlcnic_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *p)
 	if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
 		return;
 
-	regs_buff[i++] = 0xFFEFCDAB; /* Marker btw regs and ring count*/
-
-	regs_buff[i++] = 1; /* No. of tx ring */
-	regs_buff[i++] = le32_to_cpu(*(adapter->tx_ring->hw_consumer));
-	regs_buff[i++] = readl(adapter->tx_ring->crb_cmd_producer);
-
-	regs_buff[i++] = 2; /* No. of rx ring */
-	regs_buff[i++] = readl(recv_ctx->rds_rings[0].crb_rcv_producer);
-	regs_buff[i++] = readl(recv_ctx->rds_rings[1].crb_rcv_producer);
+	/* Marker btw regs and TX ring count */
+	regs_buff[i++] = 0xFFEFCDAB;
+
+	regs_buff[i++] = adapter->max_drv_tx_rings; /* No. of TX ring */
+	for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+		tx_ring = &adapter->tx_ring[ring];
+		regs_buff[i++] = le32_to_cpu(*(tx_ring->hw_consumer));
+		regs_buff[i++] = tx_ring->sw_consumer;
+		regs_buff[i++] = readl(tx_ring->crb_cmd_producer);
+		regs_buff[i++] = tx_ring->producer;
+		if (tx_ring->crb_intr_mask)
+			regs_buff[i++] = readl(tx_ring->crb_intr_mask);
+		else
+			regs_buff[i++] = QLCNIC_TX_INTR_NOT_CONFIGURED;
+	}
 
-	regs_buff[i++] = adapter->max_sds_rings;
+	regs_buff[i++] = adapter->max_rds_rings; /* No. of RX ring */
+	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
+		rds_rings = &recv_ctx->rds_rings[ring];
+		regs_buff[i++] = readl(rds_rings->crb_rcv_producer);
+		regs_buff[i++] = rds_rings->producer;
+	}
 
+	regs_buff[i++] = adapter->max_sds_rings; /* No. of SDS ring */
 	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
 		sds_ring = &(recv_ctx->sds_rings[ring]);
 		regs_buff[i++] = readl(sds_ring->crb_sts_consumer);
+		regs_buff[i++] = sds_ring->consumer;
+		regs_buff[i++] = readl(sds_ring->crb_intr_mask);
 	}
 }
 
-- 
cgit 


From 891e71b1bc7a09c4bceb1a11e5529f55a379a4c7 Mon Sep 17 00:00:00 2001
From: Pratik Pujar <pratik.pujar@qlogic.com>
Date: Fri, 18 Oct 2013 12:22:30 -0400
Subject: qlcnic: Firmware dump collection when auto recovery is disabled.

o Allow collecting the firmware dump of halted firmware when auto
  recovery is disabled.

Signed-off-by: Pratik Pujar <pratik.pujar@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c | 11 +++++++++++
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c      |  7 ++++++-
 2 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
index f09e787af0b2..d303fab5394d 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
@@ -818,6 +818,7 @@ static int qlcnic_83xx_idc_ready_state(struct qlcnic_adapter *adapter)
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
 	struct qlcnic_mailbox *mbx = ahw->mailbox;
 	int ret = 0;
+	u32 owner;
 	u32 val;
 
 	/* Perform NIC configuration based ready state entry actions */
@@ -846,6 +847,10 @@ static int qlcnic_83xx_idc_ready_state(struct qlcnic_adapter *adapter)
 			clear_bit(QLC_83XX_MBX_READY, &mbx->status);
 			set_bit(__QLCNIC_RESETTING, &adapter->state);
 			qlcnic_83xx_idc_enter_need_reset_state(adapter, 1);
+		}  else {
+			owner = qlcnic_83xx_idc_find_reset_owner_id(adapter);
+			if (ahw->pci_func == owner)
+				qlcnic_dump_fw(adapter);
 		}
 		return -EIO;
 	}
@@ -1058,6 +1063,12 @@ void qlcnic_83xx_idc_poll_dev_state(struct work_struct *work)
 	adapter->ahw->idc.prev_state = adapter->ahw->idc.curr_state;
 	qlcnic_83xx_periodic_tasks(adapter);
 
+	/* Do not reschedule if firmaware is in hanged state and auto
+	 * recovery is disabled
+	 */
+	if ((adapter->flags & QLCNIC_FW_HANG) && !qlcnic_auto_fw_reset)
+		return;
+
 	/* Re-schedule the function */
 	if (test_bit(QLC_83XX_MODULE_LOADED, &adapter->ahw->idc.status))
 		qlcnic_schedule_work(adapter, qlcnic_83xx_idc_poll_dev_state,
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 55e8b2350241..51959726369f 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -3353,6 +3353,8 @@ done:
 static int
 qlcnic_check_health(struct qlcnic_adapter *adapter)
 {
+	struct qlcnic_hardware_context *ahw = adapter->ahw;
+	struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
 	u32 state = 0, heartbeat;
 	u32 peg_status;
 	int err = 0;
@@ -3377,7 +3379,7 @@ qlcnic_check_health(struct qlcnic_adapter *adapter)
 		if (adapter->need_fw_reset)
 			goto detach;
 
-		if (adapter->ahw->reset_context && qlcnic_auto_fw_reset)
+		if (ahw->reset_context && qlcnic_auto_fw_reset)
 			qlcnic_reset_hw_context(adapter);
 
 		return 0;
@@ -3420,6 +3422,9 @@ detach:
 
 		qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
 		QLCDB(adapter, DRV, "fw recovery scheduled.\n");
+	} else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
+		   adapter->flags & QLCNIC_FW_RESET_OWNER) {
+		qlcnic_dump_fw(adapter);
 	}
 
 	return 1;
-- 
cgit 


From 6177a95a93fe6eed2f59fa17720057988a81913c Mon Sep 17 00:00:00 2001
From: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Date: Fri, 18 Oct 2013 12:22:31 -0400
Subject: qlcnic: Update ethtool standard pause settings.

Update ethtool standard pause parameter settings and display

Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c | 18 +++++++++++++++---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h |  3 +++
 2 files changed, 18 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index c2df4cea524d..268fda6f256e 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -3369,10 +3369,21 @@ void qlcnic_83xx_get_pauseparam(struct qlcnic_adapter *adapter,
 	}
 	config = ahw->port_config;
 	if (config & QLC_83XX_CFG_STD_PAUSE) {
-		if (config & QLC_83XX_CFG_STD_TX_PAUSE)
+		switch (MSW(config)) {
+		case QLC_83XX_TX_PAUSE:
+			pause->tx_pause = 1;
+			break;
+		case QLC_83XX_RX_PAUSE:
+			pause->rx_pause = 1;
+			break;
+		case QLC_83XX_TX_RX_PAUSE:
+		default:
+			/* Backward compatibility for existing
+			 * flash definitions
+			 */
 			pause->tx_pause = 1;
-		if (config & QLC_83XX_CFG_STD_RX_PAUSE)
 			pause->rx_pause = 1;
+		}
 	}
 
 	if (QLC_83XX_AUTONEG(config))
@@ -3415,7 +3426,8 @@ int qlcnic_83xx_set_pauseparam(struct qlcnic_adapter *adapter,
 		ahw->port_config &= ~QLC_83XX_CFG_STD_RX_PAUSE;
 		ahw->port_config |= QLC_83XX_CFG_STD_TX_PAUSE;
 	} else if (!pause->rx_pause && !pause->tx_pause) {
-		ahw->port_config &= ~QLC_83XX_CFG_STD_TX_RX_PAUSE;
+		ahw->port_config &= ~(QLC_83XX_CFG_STD_TX_RX_PAUSE |
+				      QLC_83XX_CFG_STD_PAUSE);
 	}
 	status = qlcnic_83xx_set_port_config(adapter);
 	if (status) {
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
index 533e150503af..2883b57b20f6 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
@@ -363,6 +363,9 @@ enum qlcnic_83xx_states {
 #define QLC_83XX_LINK_EEE(data)		((data) & BIT_13)
 #define QLC_83XX_DCBX(data)			(((data) >> 28) & 7)
 #define QLC_83XX_AUTONEG(data)			((data) & BIT_15)
+#define QLC_83XX_TX_PAUSE			0x10
+#define QLC_83XX_RX_PAUSE			0x20
+#define QLC_83XX_TX_RX_PAUSE			0x30
 #define QLC_83XX_CFG_STD_PAUSE			(1 << 5)
 #define QLC_83XX_CFG_STD_TX_PAUSE		(1 << 20)
 #define QLC_83XX_CFG_STD_RX_PAUSE		(2 << 20)
-- 
cgit 


From 4c776aad7453b6795d6d26200706e07ef261b8c9 Mon Sep 17 00:00:00 2001
From: Sony Chacko <sony.chacko@qlogic.com>
Date: Fri, 18 Oct 2013 12:22:32 -0400
Subject: qlcnic: Remove redundant eSwitch enable commands

When more than one NIC physical functions are enabled on a port,
eSwitch on that port gets enabled automatically. Driver
need not explicitly enable the eSwitch.

Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h    |  2 +-
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c  | 23 ++++------------------
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c   | 13 ++++++------
 3 files changed, 12 insertions(+), 26 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
index 2883b57b20f6..9f4e4c4ab521 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
@@ -629,7 +629,7 @@ int qlcnic_83xx_config_vnic_opmode(struct qlcnic_adapter *);
 int qlcnic_83xx_get_vnic_vport_info(struct qlcnic_adapter *,
 				    struct qlcnic_info *, u8);
 int qlcnic_83xx_get_vnic_pf_info(struct qlcnic_adapter *, struct qlcnic_info *);
-int qlcnic_83xx_enable_port_eswitch(struct qlcnic_adapter *, int);
+int qlcnic_83xx_set_port_eswitch_status(struct qlcnic_adapter *, int, int *);
 
 void qlcnic_83xx_get_minidump_template(struct qlcnic_adapter *);
 void qlcnic_83xx_get_stats(struct qlcnic_adapter *adapter, u64 *data);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
index 60a477f10f41..734d28602ac3 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_vnic.c
@@ -256,8 +256,8 @@ int qlcnic_83xx_check_vnic_state(struct qlcnic_adapter *adapter)
 	return 0;
 }
 
-static int qlcnic_83xx_get_eswitch_port_info(struct qlcnic_adapter *adapter,
-					     int func, int *port_id)
+int qlcnic_83xx_set_port_eswitch_status(struct qlcnic_adapter *adapter,
+					int func, int *port_id)
 {
 	struct qlcnic_info nic_info;
 	int err = 0;
@@ -273,23 +273,8 @@ static int qlcnic_83xx_get_eswitch_port_info(struct qlcnic_adapter *adapter,
 	else
 		err = -EIO;
 
-	return err;
-}
-
-int qlcnic_83xx_enable_port_eswitch(struct qlcnic_adapter *adapter, int func)
-{
-	int id, err = 0;
-
-	err = qlcnic_83xx_get_eswitch_port_info(adapter, func, &id);
-	if (err)
-		return err;
-
-	if (!(adapter->eswitch[id].flags & QLCNIC_SWITCH_ENABLE)) {
-		if (!qlcnic_enable_eswitch(adapter, id, 1))
-			adapter->eswitch[id].flags |= QLCNIC_SWITCH_ENABLE;
-		else
-			err = -EIO;
-	}
+	if (!err)
+		adapter->eswitch[*port_id].flags |= QLCNIC_SWITCH_ENABLE;
 
 	return err;
 }
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 51959726369f..725d76fab0a4 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -819,7 +819,7 @@ static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 {
 	struct qlcnic_pci_info *pci_info;
-	int i, ret = 0, j = 0;
+	int i, id = 0, ret = 0, j = 0;
 	u16 act_pci_func;
 	u8 pfn;
 
@@ -860,7 +860,8 @@ int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 			continue;
 
 		if (qlcnic_port_eswitch_cfg_capability(adapter)) {
-			if (!qlcnic_83xx_enable_port_eswitch(adapter, pfn))
+			if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
+								 &id))
 				adapter->npars[j].eswitch_status = true;
 			else
 				continue;
@@ -879,12 +880,12 @@ int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
 		j++;
 	}
 
-	if (qlcnic_82xx_check(adapter)) {
+	/* Update eSwitch status for adapters without per port eSwitch
+	 * configuration capability
+	 */
+	if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
 		for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
 			adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
-	} else if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
-		for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
-			qlcnic_enable_eswitch(adapter, i, 1);
 	}
 
 	kfree(pci_info);
-- 
cgit 


From 1de899d3815fd945b0c2285a4e07fea8eaedf2aa Mon Sep 17 00:00:00 2001
From: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Date: Fri, 18 Oct 2013 12:22:33 -0400
Subject: qlcnic: dcb code cleanup and refactoring.

o Move dcb specific function definitions to dcb files.
o Move dcb specific variables to qlcnic_dcb structure.

Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic.h        |  96 -----------
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c    |   2 +-
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c  |   9 +-
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c    | 184 ++++++++++-----------
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.h    | 109 ++++++++++--
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c     |   2 +-
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c   |  24 +--
 .../ethernet/qlogic/qlcnic/qlcnic_sriov_common.c   |   9 +-
 8 files changed, 207 insertions(+), 228 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index a3c4379d78f8..728bb8888d76 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -961,8 +961,6 @@ struct qlcnic_ipaddr {
 #define __QLCNIC_SRIOV_CAPABLE		11
 #define __QLCNIC_MBX_POLL_ENABLE	12
 #define __QLCNIC_DIAG_MODE		13
-#define __QLCNIC_DCB_STATE		14
-#define __QLCNIC_DCB_IN_AEN		15
 
 #define QLCNIC_INTERRUPT_TEST		1
 #define QLCNIC_LOOPBACK_TEST		2
@@ -2116,98 +2114,4 @@ static inline bool qlcnic_sriov_vf_check(struct qlcnic_adapter *adapter)
 
 	return status;
 }
-
-static inline int qlcnic_dcb_get_hw_capability(struct qlcnic_adapter *adapter)
-{
-	struct qlcnic_dcb *dcb = adapter->dcb;
-
-	if (dcb && dcb->ops->get_hw_capability)
-		return dcb->ops->get_hw_capability(adapter);
-
-	return 0;
-}
-
-static inline void qlcnic_dcb_free(struct qlcnic_adapter *adapter)
-{
-	struct qlcnic_dcb *dcb = adapter->dcb;
-
-	if (dcb && dcb->ops->free)
-		dcb->ops->free(adapter);
-}
-
-static inline int qlcnic_dcb_attach(struct qlcnic_adapter *adapter)
-{
-	struct qlcnic_dcb *dcb = adapter->dcb;
-
-	if (dcb && dcb->ops->attach)
-		return dcb->ops->attach(adapter);
-
-	return 0;
-}
-
-static inline int
-qlcnic_dcb_query_hw_capability(struct qlcnic_adapter *adapter, char *buf)
-{
-	struct qlcnic_dcb *dcb = adapter->dcb;
-
-	if (dcb && dcb->ops->query_hw_capability)
-		return dcb->ops->query_hw_capability(adapter, buf);
-
-	return 0;
-}
-
-static inline void qlcnic_dcb_get_info(struct qlcnic_adapter *adapter)
-{
-	struct qlcnic_dcb *dcb = adapter->dcb;
-
-	if (dcb && dcb->ops->get_info)
-		dcb->ops->get_info(adapter);
-}
-
-static inline int
-qlcnic_dcb_query_cee_param(struct qlcnic_adapter *adapter, char *buf, u8 type)
-{
-	struct qlcnic_dcb *dcb = adapter->dcb;
-
-	if (dcb && dcb->ops->query_cee_param)
-		return dcb->ops->query_cee_param(adapter, buf, type);
-
-	return 0;
-}
-
-static inline int qlcnic_dcb_get_cee_cfg(struct qlcnic_adapter *adapter)
-{
-	struct qlcnic_dcb *dcb = adapter->dcb;
-
-	if (dcb && dcb->ops->get_cee_cfg)
-		return dcb->ops->get_cee_cfg(adapter);
-
-	return 0;
-}
-
-static inline void
-qlcnic_dcb_register_aen(struct qlcnic_adapter *adapter, u8 flag)
-{
-	struct qlcnic_dcb *dcb = adapter->dcb;
-
-	if (dcb && dcb->ops->register_aen)
-		dcb->ops->register_aen(adapter, flag);
-}
-
-static inline void qlcnic_dcb_handle_aen(struct qlcnic_adapter *adapter,
-					 void *msg)
-{
-	struct qlcnic_dcb *dcb = adapter->dcb;
-
-	if (dcb && dcb->ops->handle_aen)
-		dcb->ops->handle_aen(adapter, msg);
-}
-
-static inline void qlcnic_dcb_init_dcbnl_ops(struct qlcnic_adapter *adapter)
-{
-	struct qlcnic_dcb *dcb = adapter->dcb;
-
-	if (dcb && dcb->ops->init_dcbnl_ops)
-		dcb->ops->init_dcbnl_ops(adapter);
-}
 #endif				/* __QLCNIC_H_ */
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index 268fda6f256e..a126bdf27952 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -902,7 +902,7 @@ void __qlcnic_83xx_process_aen(struct qlcnic_adapter *adapter)
 			 QLCNIC_MBX_RSP(event[0]));
 		break;
 	case QLCNIC_MBX_DCBX_CONFIG_CHANGE_EVENT:
-		qlcnic_dcb_handle_aen(adapter, (void *)&event[1]);
+		qlcnic_dcb_aen_handler(adapter->dcb, (void *)&event[1]);
 		break;
 	default:
 		dev_dbg(&adapter->pdev->dev, "Unsupported AEN:0x%x.\n",
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
index d303fab5394d..e2cd48417041 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
@@ -636,7 +636,7 @@ int qlcnic_83xx_idc_reattach_driver(struct qlcnic_adapter *adapter)
 	if (adapter->portnum == 0)
 		qlcnic_set_drv_version(adapter);
 
-	qlcnic_dcb_get_info(adapter);
+	qlcnic_dcb_get_info(adapter->dcb);
 	qlcnic_83xx_idc_attach_driver(adapter);
 
 	return 0;
@@ -2174,6 +2174,7 @@ static int qlcnic_83xx_get_fw_info(struct qlcnic_adapter *adapter)
 int qlcnic_83xx_init(struct qlcnic_adapter *adapter, int pci_using_dac)
 {
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
+	struct qlcnic_dcb *dcb;
 	int err = 0;
 
 	ahw->msix_supported = !!qlcnic_use_msi_x;
@@ -2231,8 +2232,10 @@ int qlcnic_83xx_init(struct qlcnic_adapter *adapter, int pci_using_dac)
 	if (err)
 		goto disable_mbx_intr;
 
-	if (adapter->dcb && qlcnic_dcb_attach(adapter))
-		qlcnic_clear_dcb_ops(adapter);
+	dcb = adapter->dcb;
+
+	if (dcb && qlcnic_dcb_attach(dcb))
+		qlcnic_clear_dcb_ops(dcb);
 
 	/* Periodically monitor device status */
 	qlcnic_83xx_idc_poll_dev_state(&adapter->fw_work.work);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c
index d62d5ce432ec..86bca7c14f99 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.c
@@ -57,22 +57,22 @@ static const struct dcbnl_rtnl_ops qlcnic_dcbnl_ops;
 static void qlcnic_dcb_aen_work(struct work_struct *);
 static void qlcnic_dcb_data_cee_param_map(struct qlcnic_adapter *);
 
-static inline void __qlcnic_init_dcbnl_ops(struct qlcnic_adapter *);
-static void __qlcnic_dcb_free(struct qlcnic_adapter *);
-static int __qlcnic_dcb_attach(struct qlcnic_adapter *);
-static int __qlcnic_dcb_query_hw_capability(struct qlcnic_adapter *, char *);
-static void __qlcnic_dcb_get_info(struct qlcnic_adapter *);
-
-static int qlcnic_82xx_dcb_get_hw_capability(struct qlcnic_adapter *);
-static int qlcnic_82xx_dcb_query_cee_param(struct qlcnic_adapter *, char *, u8);
-static int qlcnic_82xx_dcb_get_cee_cfg(struct qlcnic_adapter *);
-static void qlcnic_82xx_dcb_handle_aen(struct qlcnic_adapter *, void *);
-
-static int qlcnic_83xx_dcb_get_hw_capability(struct qlcnic_adapter *);
-static int qlcnic_83xx_dcb_query_cee_param(struct qlcnic_adapter *, char *, u8);
-static int qlcnic_83xx_dcb_get_cee_cfg(struct qlcnic_adapter *);
-static int qlcnic_83xx_dcb_register_aen(struct qlcnic_adapter *, bool);
-static void qlcnic_83xx_dcb_handle_aen(struct qlcnic_adapter *, void *);
+static inline void __qlcnic_init_dcbnl_ops(struct qlcnic_dcb *);
+static void __qlcnic_dcb_free(struct qlcnic_dcb *);
+static int __qlcnic_dcb_attach(struct qlcnic_dcb *);
+static int __qlcnic_dcb_query_hw_capability(struct qlcnic_dcb *, char *);
+static void __qlcnic_dcb_get_info(struct qlcnic_dcb *);
+
+static int qlcnic_82xx_dcb_get_hw_capability(struct qlcnic_dcb *);
+static int qlcnic_82xx_dcb_query_cee_param(struct qlcnic_dcb *, char *, u8);
+static int qlcnic_82xx_dcb_get_cee_cfg(struct qlcnic_dcb *);
+static void qlcnic_82xx_dcb_aen_handler(struct qlcnic_dcb *, void *);
+
+static int qlcnic_83xx_dcb_get_hw_capability(struct qlcnic_dcb *);
+static int qlcnic_83xx_dcb_query_cee_param(struct qlcnic_dcb *, char *, u8);
+static int qlcnic_83xx_dcb_get_cee_cfg(struct qlcnic_dcb *);
+static int qlcnic_83xx_dcb_register_aen(struct qlcnic_dcb *, bool);
+static void qlcnic_83xx_dcb_aen_handler(struct qlcnic_dcb *, void *);
 
 struct qlcnic_dcb_capability {
 	bool	tsa_capability;
@@ -180,7 +180,7 @@ static struct qlcnic_dcb_ops qlcnic_83xx_dcb_ops = {
 	.query_cee_param	= qlcnic_83xx_dcb_query_cee_param,
 	.get_cee_cfg		= qlcnic_83xx_dcb_get_cee_cfg,
 	.register_aen		= qlcnic_83xx_dcb_register_aen,
-	.handle_aen		= qlcnic_83xx_dcb_handle_aen,
+	.aen_handler		= qlcnic_83xx_dcb_aen_handler,
 };
 
 static struct qlcnic_dcb_ops qlcnic_82xx_dcb_ops = {
@@ -193,7 +193,7 @@ static struct qlcnic_dcb_ops qlcnic_82xx_dcb_ops = {
 	.get_hw_capability	= qlcnic_82xx_dcb_get_hw_capability,
 	.query_cee_param	= qlcnic_82xx_dcb_query_cee_param,
 	.get_cee_cfg		= qlcnic_82xx_dcb_get_cee_cfg,
-	.handle_aen		= qlcnic_82xx_dcb_handle_aen,
+	.aen_handler		= qlcnic_82xx_dcb_aen_handler,
 };
 
 static u8 qlcnic_dcb_get_num_app(struct qlcnic_adapter *adapter, u32 val)
@@ -242,10 +242,10 @@ static int qlcnic_dcb_prio_count(u8 up_tc_map)
 	return j;
 }
 
-static inline void __qlcnic_init_dcbnl_ops(struct qlcnic_adapter *adapter)
+static inline void __qlcnic_init_dcbnl_ops(struct qlcnic_dcb *dcb)
 {
-	if (test_bit(__QLCNIC_DCB_STATE, &adapter->state))
-		adapter->netdev->dcbnl_ops = &qlcnic_dcbnl_ops;
+	if (test_bit(QLCNIC_DCB_STATE, &dcb->state))
+		dcb->adapter->netdev->dcbnl_ops = &qlcnic_dcbnl_ops;
 }
 
 static void qlcnic_set_dcb_ops(struct qlcnic_adapter *adapter)
@@ -256,7 +256,7 @@ static void qlcnic_set_dcb_ops(struct qlcnic_adapter *adapter)
 		adapter->dcb->ops = &qlcnic_83xx_dcb_ops;
 }
 
-int __qlcnic_register_dcb(struct qlcnic_adapter *adapter)
+int qlcnic_register_dcb(struct qlcnic_adapter *adapter)
 {
 	struct qlcnic_dcb *dcb;
 
@@ -267,20 +267,22 @@ int __qlcnic_register_dcb(struct qlcnic_adapter *adapter)
 	adapter->dcb = dcb;
 	dcb->adapter = adapter;
 	qlcnic_set_dcb_ops(adapter);
+	dcb->state = 0;
 
 	return 0;
 }
 
-static void __qlcnic_dcb_free(struct qlcnic_adapter *adapter)
+static void __qlcnic_dcb_free(struct qlcnic_dcb *dcb)
 {
-	struct qlcnic_dcb *dcb = adapter->dcb;
+	struct qlcnic_adapter *adapter;
 
 	if (!dcb)
 		return;
 
-	qlcnic_dcb_register_aen(adapter, 0);
+	adapter = dcb->adapter;
+	qlcnic_dcb_register_aen(dcb, 0);
 
-	while (test_bit(__QLCNIC_DCB_IN_AEN, &adapter->state))
+	while (test_bit(QLCNIC_DCB_AEN_MODE, &dcb->state))
 		usleep_range(10000, 11000);
 
 	cancel_delayed_work_sync(&dcb->aen_work);
@@ -298,23 +300,22 @@ static void __qlcnic_dcb_free(struct qlcnic_adapter *adapter)
 	adapter->dcb = NULL;
 }
 
-static void __qlcnic_dcb_get_info(struct qlcnic_adapter *adapter)
+static void __qlcnic_dcb_get_info(struct qlcnic_dcb *dcb)
 {
-	qlcnic_dcb_get_hw_capability(adapter);
-	qlcnic_dcb_get_cee_cfg(adapter);
-	qlcnic_dcb_register_aen(adapter, 1);
+	qlcnic_dcb_get_hw_capability(dcb);
+	qlcnic_dcb_get_cee_cfg(dcb);
+	qlcnic_dcb_register_aen(dcb, 1);
 }
 
-static int __qlcnic_dcb_attach(struct qlcnic_adapter *adapter)
+static int __qlcnic_dcb_attach(struct qlcnic_dcb *dcb)
 {
-	struct qlcnic_dcb *dcb = adapter->dcb;
 	int err = 0;
 
 	INIT_DELAYED_WORK(&dcb->aen_work, qlcnic_dcb_aen_work);
 
 	dcb->wq = create_singlethread_workqueue("qlcnic-dcb");
 	if (!dcb->wq) {
-		dev_err(&adapter->pdev->dev,
+		dev_err(&dcb->adapter->pdev->dev,
 			"DCB workqueue allocation failed. DCB will be disabled\n");
 		return -1;
 	}
@@ -331,7 +332,7 @@ static int __qlcnic_dcb_attach(struct qlcnic_adapter *adapter)
 		goto out_free_cfg;
 	}
 
-	qlcnic_dcb_get_info(adapter);
+	qlcnic_dcb_get_info(dcb);
 
 	return 0;
 out_free_cfg:
@@ -345,9 +346,9 @@ out_free_wq:
 	return err;
 }
 
-static int __qlcnic_dcb_query_hw_capability(struct qlcnic_adapter *adapter,
-					    char *buf)
+static int __qlcnic_dcb_query_hw_capability(struct qlcnic_dcb *dcb, char *buf)
 {
+	struct qlcnic_adapter *adapter = dcb->adapter;
 	struct qlcnic_cmd_args cmd;
 	u32 mbx_out;
 	int err;
@@ -371,15 +372,15 @@ static int __qlcnic_dcb_query_hw_capability(struct qlcnic_adapter *adapter,
 	return err;
 }
 
-static int __qlcnic_dcb_get_capability(struct qlcnic_adapter *adapter, u32 *val)
+static int __qlcnic_dcb_get_capability(struct qlcnic_dcb *dcb, u32 *val)
 {
-	struct qlcnic_dcb_capability *cap = &adapter->dcb->cfg->capability;
+	struct qlcnic_dcb_capability *cap = &dcb->cfg->capability;
 	u32 mbx_out;
 	int err;
 
 	memset(cap, 0, sizeof(struct qlcnic_dcb_capability));
 
-	err = qlcnic_dcb_query_hw_capability(adapter, (char *)val);
+	err = qlcnic_dcb_query_hw_capability(dcb, (char *)val);
 	if (err)
 		return err;
 
@@ -397,21 +398,21 @@ static int __qlcnic_dcb_get_capability(struct qlcnic_adapter *adapter, u32 *val)
 	if (cap->max_num_tc > QLC_DCB_MAX_TC ||
 	    cap->max_ets_tc > cap->max_num_tc ||
 	    cap->max_pfc_tc > cap->max_num_tc) {
-		dev_err(&adapter->pdev->dev, "Invalid DCB configuration\n");
+		dev_err(&dcb->adapter->pdev->dev, "Invalid DCB configuration\n");
 		return -EINVAL;
 	}
 
 	return err;
 }
 
-static int qlcnic_82xx_dcb_get_hw_capability(struct qlcnic_adapter *adapter)
+static int qlcnic_82xx_dcb_get_hw_capability(struct qlcnic_dcb *dcb)
 {
-	struct qlcnic_dcb_cfg *cfg = adapter->dcb->cfg;
+	struct qlcnic_dcb_cfg *cfg = dcb->cfg;
 	struct qlcnic_dcb_capability *cap;
 	u32 mbx_out;
 	int err;
 
-	err = __qlcnic_dcb_get_capability(adapter, &mbx_out);
+	err = __qlcnic_dcb_get_capability(dcb, &mbx_out);
 	if (err)
 		return err;
 
@@ -419,15 +420,16 @@ static int qlcnic_82xx_dcb_get_hw_capability(struct qlcnic_adapter *adapter)
 	cap->dcb_capability = DCB_CAP_DCBX_VER_CEE | DCB_CAP_DCBX_LLD_MANAGED;
 
 	if (cap->dcb_capability && cap->tsa_capability && cap->ets_capability)
-		set_bit(__QLCNIC_DCB_STATE, &adapter->state);
+		set_bit(QLCNIC_DCB_STATE, &dcb->state);
 
 	return err;
 }
 
-static int qlcnic_82xx_dcb_query_cee_param(struct qlcnic_adapter *adapter,
+static int qlcnic_82xx_dcb_query_cee_param(struct qlcnic_dcb *dcb,
 					   char *buf, u8 type)
 {
 	u16 size = sizeof(struct qlcnic_82xx_dcb_param_mbx_le);
+	struct qlcnic_adapter *adapter = dcb->adapter;
 	struct qlcnic_82xx_dcb_param_mbx_le *prsp_le;
 	struct device *dev = &adapter->pdev->dev;
 	dma_addr_t cardrsp_phys_addr;
@@ -447,8 +449,7 @@ static int qlcnic_82xx_dcb_query_cee_param(struct qlcnic_adapter *adapter,
 		return -EINVAL;
 	}
 
-	addr = dma_alloc_coherent(&adapter->pdev->dev, size, &cardrsp_phys_addr,
-				  GFP_KERNEL);
+	addr = dma_alloc_coherent(dev, size, &cardrsp_phys_addr, GFP_KERNEL);
 	if (addr == NULL)
 		return -ENOMEM;
 
@@ -488,72 +489,67 @@ out:
 	qlcnic_free_mbx_args(&cmd);
 
 out_free_rsp:
-	dma_free_coherent(&adapter->pdev->dev, size, addr, cardrsp_phys_addr);
+	dma_free_coherent(dev, size, addr, cardrsp_phys_addr);
 
 	return err;
 }
 
-static int qlcnic_82xx_dcb_get_cee_cfg(struct qlcnic_adapter *adapter)
+static int qlcnic_82xx_dcb_get_cee_cfg(struct qlcnic_dcb *dcb)
 {
 	struct qlcnic_dcb_mbx_params *mbx;
 	int err;
 
-	mbx = adapter->dcb->param;
+	mbx = dcb->param;
 	if (!mbx)
 		return 0;
 
-	err = qlcnic_dcb_query_cee_param(adapter, (char *)&mbx->type[0],
+	err = qlcnic_dcb_query_cee_param(dcb, (char *)&mbx->type[0],
 					 QLC_DCB_LOCAL_PARAM_FWID);
 	if (err)
 		return err;
 
-	err = qlcnic_dcb_query_cee_param(adapter, (char *)&mbx->type[1],
+	err = qlcnic_dcb_query_cee_param(dcb, (char *)&mbx->type[1],
 					 QLC_DCB_OPER_PARAM_FWID);
 	if (err)
 		return err;
 
-	err = qlcnic_dcb_query_cee_param(adapter, (char *)&mbx->type[2],
+	err = qlcnic_dcb_query_cee_param(dcb, (char *)&mbx->type[2],
 					 QLC_DCB_PEER_PARAM_FWID);
 	if (err)
 		return err;
 
 	mbx->prio_tc_map = QLC_82XX_DCB_PRIO_TC_MAP;
 
-	qlcnic_dcb_data_cee_param_map(adapter);
+	qlcnic_dcb_data_cee_param_map(dcb->adapter);
 
 	return err;
 }
 
 static void qlcnic_dcb_aen_work(struct work_struct *work)
 {
-	struct qlcnic_adapter *adapter;
 	struct qlcnic_dcb *dcb;
 
 	dcb = container_of(work, struct qlcnic_dcb, aen_work.work);
-	adapter = dcb->adapter;
 
-	qlcnic_dcb_get_cee_cfg(adapter);
-	clear_bit(__QLCNIC_DCB_IN_AEN, &adapter->state);
+	qlcnic_dcb_get_cee_cfg(dcb);
+	clear_bit(QLCNIC_DCB_AEN_MODE, &dcb->state);
 }
 
-static void qlcnic_82xx_dcb_handle_aen(struct qlcnic_adapter *adapter,
-				       void *data)
+static void qlcnic_82xx_dcb_aen_handler(struct qlcnic_dcb *dcb, void *data)
 {
-	struct qlcnic_dcb *dcb = adapter->dcb;
-
-	if (test_and_set_bit(__QLCNIC_DCB_IN_AEN, &adapter->state))
+	if (test_and_set_bit(QLCNIC_DCB_AEN_MODE, &dcb->state))
 		return;
 
 	queue_delayed_work(dcb->wq, &dcb->aen_work, 0);
 }
 
-static int qlcnic_83xx_dcb_get_hw_capability(struct qlcnic_adapter *adapter)
+static int qlcnic_83xx_dcb_get_hw_capability(struct qlcnic_dcb *dcb)
 {
-	struct qlcnic_dcb_capability *cap = &adapter->dcb->cfg->capability;
+	struct qlcnic_dcb_capability *cap = &dcb->cfg->capability;
 	u32 mbx_out;
 	int err;
 
-	err = __qlcnic_dcb_get_capability(adapter, &mbx_out);
+	err = __qlcnic_dcb_get_capability(dcb, &mbx_out);
 	if (err)
 		return err;
 
@@ -565,14 +561,15 @@ static int qlcnic_83xx_dcb_get_hw_capability(struct qlcnic_adapter *adapter)
 		cap->dcb_capability |= DCB_CAP_DCBX_LLD_MANAGED;
 
 	if (cap->dcb_capability && cap->tsa_capability && cap->ets_capability)
-		set_bit(__QLCNIC_DCB_STATE, &adapter->state);
+		set_bit(QLCNIC_DCB_STATE, &dcb->state);
 
 	return err;
 }
 
-static int qlcnic_83xx_dcb_query_cee_param(struct qlcnic_adapter *adapter,
+static int qlcnic_83xx_dcb_query_cee_param(struct qlcnic_dcb *dcb,
 					   char *buf, u8 idx)
 {
+	struct qlcnic_adapter *adapter = dcb->adapter;
 	struct qlcnic_dcb_mbx_params mbx_out;
 	int err, i, j, k, max_app, size;
 	struct qlcnic_dcb_param *each;
@@ -632,24 +629,23 @@ out:
 	return err;
 }
 
-static int qlcnic_83xx_dcb_get_cee_cfg(struct qlcnic_adapter *adapter)
+static int qlcnic_83xx_dcb_get_cee_cfg(struct qlcnic_dcb *dcb)
 {
-	struct qlcnic_dcb *dcb = adapter->dcb;
 	int err;
 
-	err = qlcnic_dcb_query_cee_param(adapter, (char *)dcb->param, 0);
+	err = qlcnic_dcb_query_cee_param(dcb, (char *)dcb->param, 0);
 	if (err)
 		return err;
 
-	qlcnic_dcb_data_cee_param_map(adapter);
+	qlcnic_dcb_data_cee_param_map(dcb->adapter);
 
 	return err;
 }
 
-static int qlcnic_83xx_dcb_register_aen(struct qlcnic_adapter *adapter,
-					bool flag)
+static int qlcnic_83xx_dcb_register_aen(struct qlcnic_dcb *dcb, bool flag)
 {
 	u8 val = (flag ? QLCNIC_CMD_INIT_NIC_FUNC : QLCNIC_CMD_STOP_NIC_FUNC);
+	struct qlcnic_adapter *adapter = dcb->adapter;
 	struct qlcnic_cmd_args cmd;
 	int err;
 
@@ -669,19 +665,17 @@ static int qlcnic_83xx_dcb_register_aen(struct qlcnic_adapter *adapter,
 	return err;
 }
 
-static void qlcnic_83xx_dcb_handle_aen(struct qlcnic_adapter *adapter,
-				       void *data)
+static void qlcnic_83xx_dcb_aen_handler(struct qlcnic_dcb *dcb, void *data)
 {
-	struct qlcnic_dcb *dcb = adapter->dcb;
 	u32 *val = data;
 
-	if (test_and_set_bit(__QLCNIC_DCB_IN_AEN, &adapter->state))
+	if (test_and_set_bit(QLCNIC_DCB_AEN_MODE, &dcb->state))
 		return;
 
 	if (*val & BIT_8)
-		set_bit(__QLCNIC_DCB_STATE, &adapter->state);
+		set_bit(QLCNIC_DCB_STATE, &dcb->state);
 	else
-		clear_bit(__QLCNIC_DCB_STATE, &adapter->state);
+		clear_bit(QLCNIC_DCB_STATE, &dcb->state);
 
 	queue_delayed_work(dcb->wq, &dcb->aen_work, 0);
 }
@@ -814,12 +808,12 @@ static u8 qlcnic_dcb_get_state(struct net_device *netdev)
 {
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
 
-	return test_bit(__QLCNIC_DCB_STATE, &adapter->state);
+	return test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state);
 }
 
 static void qlcnic_dcb_get_perm_hw_addr(struct net_device *netdev, u8 *addr)
 {
-	memcpy(addr, netdev->dev_addr, netdev->addr_len);
+	memcpy(addr, netdev->perm_addr, netdev->addr_len);
 }
 
 static void
@@ -834,7 +828,7 @@ qlcnic_dcb_get_pg_tc_cfg_tx(struct net_device *netdev, int tc, u8 *prio,
 	type = &adapter->dcb->cfg->type[QLC_DCB_OPER_IDX];
 	*prio = *pgid = *bw_per = *up_tc_map = 0;
 
-	if (!test_bit(__QLCNIC_DCB_STATE, &adapter->state) ||
+	if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state) ||
 	    !type->tc_param_valid)
 		return;
 
@@ -870,7 +864,7 @@ static void qlcnic_dcb_get_pg_bwg_cfg_tx(struct net_device *netdev, int pgid,
 	*bw_pct = 0;
 	type = &adapter->dcb->cfg->type[QLC_DCB_OPER_IDX];
 
-	if (!test_bit(__QLCNIC_DCB_STATE, &adapter->state) ||
+	if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state) ||
 	    !type->tc_param_valid)
 		return;
 
@@ -896,7 +890,7 @@ static void qlcnic_dcb_get_pfc_cfg(struct net_device *netdev, int prio,
 	*setting = 0;
 	type = &adapter->dcb->cfg->type[QLC_DCB_OPER_IDX];
 
-	if (!test_bit(__QLCNIC_DCB_STATE, &adapter->state) ||
+	if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state) ||
 	    !type->pfc_mode_enable)
 		return;
 
@@ -915,7 +909,7 @@ static u8 qlcnic_dcb_get_capability(struct net_device *netdev, int capid,
 {
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
 
-	if (!test_bit(__QLCNIC_DCB_STATE, &adapter->state))
+	if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
 		return 0;
 
 	switch (capid) {
@@ -944,7 +938,7 @@ static int qlcnic_dcb_get_num_tcs(struct net_device *netdev, int attr, u8 *num)
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
 	struct qlcnic_dcb_cfg *cfg = adapter->dcb->cfg;
 
-	if (!test_bit(__QLCNIC_DCB_STATE, &adapter->state))
+	if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
 		return -EINVAL;
 
 	switch (attr) {
@@ -967,7 +961,7 @@ static u8 qlcnic_dcb_get_app(struct net_device *netdev, u8 idtype, u16 id)
 				.protocol = id,
 			     };
 
-	if (!test_bit(__QLCNIC_DCB_STATE, &adapter->state))
+	if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
 		return 0;
 
 	return dcb_getapp(netdev, &app);
@@ -978,7 +972,7 @@ static u8 qlcnic_dcb_get_pfc_state(struct net_device *netdev)
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
 	struct qlcnic_dcb *dcb = adapter->dcb;
 
-	if (!test_bit(__QLCNIC_DCB_STATE, &adapter->state))
+	if (!test_bit(QLCNIC_DCB_STATE, &dcb->state))
 		return 0;
 
 	return dcb->cfg->type[QLC_DCB_OPER_IDX].pfc_mode_enable;
@@ -989,7 +983,7 @@ static u8 qlcnic_dcb_get_dcbx(struct net_device *netdev)
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
 	struct qlcnic_dcb_cfg *cfg = adapter->dcb->cfg;
 
-	if (!test_bit(__QLCNIC_DCB_STATE, &adapter->state))
+	if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
 		return 0;
 
 	return cfg->capability.dcb_capability;
@@ -1000,7 +994,7 @@ static u8 qlcnic_dcb_get_feat_cfg(struct net_device *netdev, int fid, u8 *flag)
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
 	struct qlcnic_dcb_cee *type;
 
-	if (!test_bit(__QLCNIC_DCB_STATE, &adapter->state))
+	if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
 		return 1;
 
 	type = &adapter->dcb->cfg->type[QLC_DCB_OPER_IDX];
@@ -1055,7 +1049,7 @@ static int qlcnic_dcb_peer_app_info(struct net_device *netdev,
 
 	*app_count = 0;
 
-	if (!test_bit(__QLCNIC_DCB_STATE, &adapter->state))
+	if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
 		return 0;
 
 	peer = &adapter->dcb->cfg->type[QLC_DCB_PEER_IDX];
@@ -1076,7 +1070,7 @@ static int qlcnic_dcb_peer_app_table(struct net_device *netdev,
 	struct qlcnic_dcb_app *app;
 	int i, j;
 
-	if (!test_bit(__QLCNIC_DCB_STATE, &adapter->state))
+	if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
 		return 0;
 
 	peer = &adapter->dcb->cfg->type[QLC_DCB_PEER_IDX];
@@ -1101,7 +1095,7 @@ static int qlcnic_dcb_cee_peer_get_pg(struct net_device *netdev,
 	struct qlcnic_dcb_cee *peer;
 	u8 i, j, k, map;
 
-	if (!test_bit(__QLCNIC_DCB_STATE, &adapter->state))
+	if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
 		return 0;
 
 	peer = &adapter->dcb->cfg->type[QLC_DCB_PEER_IDX];
@@ -1136,7 +1130,7 @@ static int qlcnic_dcb_cee_peer_get_pfc(struct net_device *netdev,
 
 	pfc->pfc_en = 0;
 
-	if (!test_bit(__QLCNIC_DCB_STATE, &adapter->state))
+	if (!test_bit(QLCNIC_DCB_STATE, &adapter->dcb->state))
 		return 0;
 
 	peer = &cfg->type[QLC_DCB_PEER_IDX];
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.h
index b87ce9fb503e..c04ae0cdc108 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_dcb.h
@@ -8,26 +8,29 @@
 #ifndef __QLCNIC_DCBX_H
 #define __QLCNIC_DCBX_H
 
-void qlcnic_clear_dcb_ops(struct qlcnic_adapter *);
+#define QLCNIC_DCB_STATE	0
+#define QLCNIC_DCB_AEN_MODE	1
 
 #ifdef CONFIG_QLCNIC_DCB
-int __qlcnic_register_dcb(struct qlcnic_adapter *);
+int qlcnic_register_dcb(struct qlcnic_adapter *);
 #else
-static inline int __qlcnic_register_dcb(struct qlcnic_adapter *adapter)
+static inline int qlcnic_register_dcb(struct qlcnic_adapter *adapter)
 { return 0; }
 #endif
 
+struct qlcnic_dcb;
+
 struct qlcnic_dcb_ops {
-	void (*init_dcbnl_ops) (struct qlcnic_adapter *);
-	void (*free) (struct qlcnic_adapter *);
-	int (*attach) (struct qlcnic_adapter *);
-	int (*query_hw_capability) (struct qlcnic_adapter *, char *);
-	int (*get_hw_capability) (struct qlcnic_adapter *);
-	void (*get_info) (struct qlcnic_adapter *);
-	int (*query_cee_param) (struct qlcnic_adapter *, char *, u8);
-	int (*get_cee_cfg) (struct qlcnic_adapter *);
-	int (*register_aen) (struct qlcnic_adapter *, bool);
-	void (*handle_aen) (struct qlcnic_adapter *, void *);
+	int (*query_hw_capability) (struct qlcnic_dcb *, char *);
+	int (*get_hw_capability) (struct qlcnic_dcb *);
+	int (*query_cee_param) (struct qlcnic_dcb *, char *, u8);
+	void (*init_dcbnl_ops) (struct qlcnic_dcb *);
+	int (*register_aen) (struct qlcnic_dcb *, bool);
+	void (*aen_handler) (struct qlcnic_dcb *, void *);
+	int (*get_cee_cfg) (struct qlcnic_dcb *);
+	void (*get_info) (struct qlcnic_dcb *);
+	int (*attach) (struct qlcnic_dcb *);
+	void (*free) (struct qlcnic_dcb *);
 };
 
 struct qlcnic_dcb {
@@ -37,5 +40,85 @@ struct qlcnic_dcb {
 	struct workqueue_struct		*wq;
 	struct qlcnic_dcb_ops		*ops;
 	struct qlcnic_dcb_cfg		*cfg;
+	unsigned long			state;
 };
+
+static inline void qlcnic_clear_dcb_ops(struct qlcnic_dcb *dcb)
+{
+	kfree(dcb);
+	dcb = NULL;
+}
+
+static inline int qlcnic_dcb_get_hw_capability(struct qlcnic_dcb *dcb)
+{
+	if (dcb && dcb->ops->get_hw_capability)
+		return dcb->ops->get_hw_capability(dcb);
+
+	return 0;
+}
+
+static inline void qlcnic_dcb_free(struct qlcnic_dcb *dcb)
+{
+	if (dcb && dcb->ops->free)
+		dcb->ops->free(dcb);
+}
+
+static inline int qlcnic_dcb_attach(struct qlcnic_dcb *dcb)
+{
+	if (dcb && dcb->ops->attach)
+		return dcb->ops->attach(dcb);
+
+	return 0;
+}
+
+static inline int
+qlcnic_dcb_query_hw_capability(struct qlcnic_dcb *dcb, char *buf)
+{
+	if (dcb && dcb->ops->query_hw_capability)
+		return dcb->ops->query_hw_capability(dcb, buf);
+
+	return 0;
+}
+
+static inline void qlcnic_dcb_get_info(struct qlcnic_dcb *dcb)
+{
+	if (dcb && dcb->ops->get_info)
+		dcb->ops->get_info(dcb);
+}
+
+static inline int
+qlcnic_dcb_query_cee_param(struct qlcnic_dcb *dcb, char *buf, u8 type)
+{
+	if (dcb && dcb->ops->query_cee_param)
+		return dcb->ops->query_cee_param(dcb, buf, type);
+
+	return 0;
+}
+
+static inline int qlcnic_dcb_get_cee_cfg(struct qlcnic_dcb *dcb)
+{
+	if (dcb && dcb->ops->get_cee_cfg)
+		return dcb->ops->get_cee_cfg(dcb);
+
+	return 0;
+}
+
+static inline void
+qlcnic_dcb_register_aen(struct qlcnic_dcb *dcb, u8 flag)
+{
+	if (dcb && dcb->ops->register_aen)
+		dcb->ops->register_aen(dcb, flag);
+}
+
+static inline void qlcnic_dcb_aen_handler(struct qlcnic_dcb *dcb, void *msg)
+{
+	if (dcb && dcb->ops->aen_handler)
+		dcb->ops->aen_handler(dcb, msg);
+}
+
+static inline void qlcnic_dcb_init_dcbnl_ops(struct qlcnic_dcb *dcb)
+{
+	if (dcb && dcb->ops->init_dcbnl_ops)
+		dcb->ops->init_dcbnl_ops(dcb);
+}
 #endif
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
index 11b4bb83b930..897627dd1d04 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
@@ -1011,7 +1011,7 @@ static void qlcnic_handle_fw_message(int desc_cnt, int index,
 		}
 		break;
 	case QLCNIC_C2H_OPCODE_GET_DCB_AEN:
-		qlcnic_dcb_handle_aen(adapter, (void *)&msg);
+		qlcnic_dcb_aen_handler(adapter->dcb, (void *)&msg);
 		break;
 	default:
 		break;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 725d76fab0a4..027483292932 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -2071,7 +2071,7 @@ qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
 		return err;
 	}
 
-	qlcnic_dcb_init_dcbnl_ops(adapter);
+	qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
 
 	return 0;
 }
@@ -2166,17 +2166,6 @@ void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
 		qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
 }
 
-static int qlcnic_register_dcb(struct qlcnic_adapter *adapter)
-{
-	return __qlcnic_register_dcb(adapter);
-}
-
-void qlcnic_clear_dcb_ops(struct qlcnic_adapter *adapter)
-{
-	kfree(adapter->dcb);
-	adapter->dcb = NULL;
-}
-
 static int
 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
@@ -2185,6 +2174,7 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	struct qlcnic_hardware_context *ahw;
 	int err, pci_using_dac = -1;
 	char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
+	struct qlcnic_dcb *dcb;
 
 	if (pdev->is_virtfn)
 		return -ENODEV;
@@ -2305,8 +2295,10 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 		adapter->flags |= QLCNIC_NEED_FLR;
 
-		if (adapter->dcb && qlcnic_dcb_attach(adapter))
-			qlcnic_clear_dcb_ops(adapter);
+		dcb = adapter->dcb;
+
+		if (dcb && qlcnic_dcb_attach(dcb))
+			qlcnic_clear_dcb_ops(dcb);
 
 	} else if (qlcnic_83xx_check(adapter)) {
 		adapter->max_drv_tx_rings = 1;
@@ -2451,7 +2443,7 @@ static void qlcnic_remove(struct pci_dev *pdev)
 	qlcnic_cancel_idc_work(adapter);
 	ahw = adapter->ahw;
 
-	qlcnic_dcb_free(adapter);
+	qlcnic_dcb_free(adapter->dcb);
 
 	unregister_netdev(netdev);
 	qlcnic_sriov_cleanup(adapter);
@@ -3329,7 +3321,7 @@ qlcnic_attach_work(struct work_struct *work)
 		return;
 	}
 attach:
-	qlcnic_dcb_get_info(adapter);
+	qlcnic_dcb_get_info(adapter->dcb);
 
 	if (netif_running(netdev)) {
 		if (qlcnic_up(adapter, netdev))
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
index 392b9bd12b4f..8b96e29df30f 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
@@ -500,6 +500,7 @@ static int qlcnic_sriov_vf_init_driver(struct qlcnic_adapter *adapter)
 static int qlcnic_sriov_setup_vf(struct qlcnic_adapter *adapter,
 				 int pci_using_dac)
 {
+	struct qlcnic_dcb *dcb;
 	int err;
 
 	INIT_LIST_HEAD(&adapter->vf_mc_list);
@@ -533,8 +534,10 @@ static int qlcnic_sriov_setup_vf(struct qlcnic_adapter *adapter,
 	if (err)
 		goto err_out_send_channel_term;
 
-	if (adapter->dcb && qlcnic_dcb_attach(adapter))
-		qlcnic_clear_dcb_ops(adapter);
+	dcb = adapter->dcb;
+
+	if (dcb && qlcnic_dcb_attach(dcb))
+		qlcnic_clear_dcb_ops(dcb);
 
 	err = qlcnic_setup_netdev(adapter, adapter->netdev, pci_using_dac);
 	if (err)
@@ -1577,7 +1580,7 @@ static int qlcnic_sriov_vf_reinit_driver(struct qlcnic_adapter *adapter)
 	if (err)
 		goto err_out_term_channel;
 
-	qlcnic_dcb_get_info(adapter);
+	qlcnic_dcb_get_info(adapter->dcb);
 
 	return 0;
 
-- 
cgit 


From 60d3c47310df7845c983a9e6e78c4687ea572aa9 Mon Sep 17 00:00:00 2001
From: Shahed Shaikh <shahed.shaikh@qlogic.com>
Date: Fri, 18 Oct 2013 12:22:34 -0400
Subject: qlcnic: Skip unknown entry type while collecting firmware dump

o Driver aborts the minidump collection operation when it finds
  an unknown entry opcode. This patch skips unknown entry type
  and resumes the minidump collection operation.
o Removed a comparision of collected dump size with expected dump size.
  Size may differ when driver decides to skip an entry.

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 .../net/ethernet/qlogic/qlcnic/qlcnic_minidump.c   | 41 ++++++++++------------
 1 file changed, 19 insertions(+), 22 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
index 15513608d480..7763962e2ec4 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_minidump.c
@@ -1187,41 +1187,38 @@ int qlcnic_dump_fw(struct qlcnic_adapter *adapter)
 		}
 
 		if (ops_index == ops_cnt) {
-			dev_info(&adapter->pdev->dev,
-				 "Invalid entry type %d, exiting dump\n",
+			dev_info(dev, "Skipping unknown entry opcode %d\n",
 				 entry->hdr.type);
-			goto error;
+			entry->hdr.flags |= QLCNIC_DUMP_SKIP;
+			entry_offset += entry->hdr.offset;
+			continue;
 		}
 
 		/* Collect dump for this entry */
 		dump = fw_dump_ops[ops_index].handler(adapter, entry, buffer);
-		if (!qlcnic_valid_dump_entry(&adapter->pdev->dev, entry, dump))
+		if (!qlcnic_valid_dump_entry(dev, entry, dump)) {
 			entry->hdr.flags |= QLCNIC_DUMP_SKIP;
+			entry_offset += entry->hdr.offset;
+			continue;
+		}
+
 		buf_offset += entry->hdr.cap_size;
 		entry_offset += entry->hdr.offset;
 		buffer = fw_dump->data + buf_offset;
 	}
-	if (dump_size != buf_offset) {
-		dev_info(&adapter->pdev->dev,
-			 "Captured(%d) and expected size(%d) do not match\n",
-			 buf_offset, dump_size);
-		goto error;
-	} else {
-		fw_dump->clr = 1;
-		snprintf(mesg, sizeof(mesg), "FW_DUMP=%s",
-			 adapter->netdev->name);
-		dev_info(&adapter->pdev->dev, "%s: Dump data, %d bytes captured\n",
-			 adapter->netdev->name, fw_dump->size);
-		/* Send a udev event to notify availability of FW dump */
-		kobject_uevent_env(&adapter->pdev->dev.kobj, KOBJ_CHANGE, msg);
-		return 0;
-	}
-error:
+
+	fw_dump->clr = 1;
+	snprintf(mesg, sizeof(mesg), "FW_DUMP=%s", adapter->netdev->name);
+	dev_info(dev, "%s: Dump data %d bytes captured, template header size %d bytes\n",
+		 adapter->netdev->name, fw_dump->size, tmpl_hdr->size);
+	/* Send a udev event to notify availability of FW dump */
+	kobject_uevent_env(&dev->kobj, KOBJ_CHANGE, msg);
+
 	if (fw_dump->use_pex_dma)
 		dma_free_coherent(dev, QLC_PEX_DMA_READ_SIZE,
 				  fw_dump->dma_buffer, fw_dump->phys_addr);
-	vfree(fw_dump->data);
-	return -EINVAL;
+
+	return 0;
 }
 
 void qlcnic_83xx_get_minidump_template(struct qlcnic_adapter *adapter)
-- 
cgit 


From 60b4a1f3b3b4607be7c70cc07604a2749f5eb778 Mon Sep 17 00:00:00 2001
From: Himanshu Madhani <himanshu.madhani@qlogic.com>
Date: Fri, 18 Oct 2013 12:22:35 -0400
Subject: qlcnic: update version to 5.3.51

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index 728bb8888d76..0c2405dbc970 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -38,8 +38,8 @@
 
 #define _QLCNIC_LINUX_MAJOR 5
 #define _QLCNIC_LINUX_MINOR 3
-#define _QLCNIC_LINUX_SUBVERSION 50
-#define QLCNIC_LINUX_VERSIONID  "5.3.50"
+#define _QLCNIC_LINUX_SUBVERSION 51
+#define QLCNIC_LINUX_VERSIONID  "5.3.51"
 #define QLCNIC_DRV_IDC_VER  0x01
 #define QLCNIC_DRIVER_VERSION  ((_QLCNIC_LINUX_MAJOR << 16) |\
 		 (_QLCNIC_LINUX_MINOR << 8) | (_QLCNIC_LINUX_SUBVERSION))
-- 
cgit 


From ffd076eea3226e792b2087018733bd794e8c9666 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Fri, 18 Oct 2013 08:54:16 -0700
Subject: ARM: OMAP1: Fix a bunch of GPIO related section warnings after
 initdata got corrected

Commit f8e7ba66 (ARM: OMAP1: fix incorrect placement of
__initdata tag) fixed things but we started seeing section
warnings. Looks like I missed those in my automatic
build scripts:

Section mismatch in reference from the variable omap7xx_gpio6 to the (unknown reference) .init.data:(unknown)
Section mismatch in reference from the variable omap7xx_gpio6 to the (unknown reference) .init.data:(unknown)
Section mismatch in reference from the variable omap7xx_gpio5 to the (unknown reference) .init.data:(unknown)
...

Fix the issue by removing __initdata for the resources.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Kevin Hilman <khilman@linaro.org>
---
 arch/arm/mach-omap1/gpio15xx.c |  8 ++++----
 arch/arm/mach-omap1/gpio16xx.c | 20 ++++++++++----------
 arch/arm/mach-omap1/gpio7xx.c  | 28 ++++++++++++++--------------
 3 files changed, 28 insertions(+), 28 deletions(-)

diff --git a/arch/arm/mach-omap1/gpio15xx.c b/arch/arm/mach-omap1/gpio15xx.c
index 420e94bfdc6e..312a0924d786 100644
--- a/arch/arm/mach-omap1/gpio15xx.c
+++ b/arch/arm/mach-omap1/gpio15xx.c
@@ -25,7 +25,7 @@
 #define OMAP1510_GPIO_BASE		0xFFFCE000
 
 /* gpio1 */
-static struct resource omap15xx_mpu_gpio_resources[] __initdata = {
+static struct resource omap15xx_mpu_gpio_resources[] = {
 	{
 		.start	= OMAP1_MPUIO_VBASE,
 		.end	= OMAP1_MPUIO_VBASE + SZ_2K - 1,
@@ -48,7 +48,7 @@ static struct omap_gpio_reg_offs omap15xx_mpuio_regs = {
 	.irqctrl	= OMAP_MPUIO_GPIO_INT_EDGE,
 };
 
-static struct omap_gpio_platform_data omap15xx_mpu_gpio_config __initdata = {
+static struct omap_gpio_platform_data omap15xx_mpu_gpio_config = {
 	.is_mpuio		= true,
 	.bank_width		= 16,
 	.bank_stride		= 1,
@@ -66,7 +66,7 @@ static struct platform_device omap15xx_mpu_gpio = {
 };
 
 /* gpio2 */
-static struct resource omap15xx_gpio_resources[] __initdata = {
+static struct resource omap15xx_gpio_resources[] = {
 	{
 		.start	= OMAP1510_GPIO_BASE,
 		.end	= OMAP1510_GPIO_BASE + SZ_2K - 1,
@@ -90,7 +90,7 @@ static struct omap_gpio_reg_offs omap15xx_gpio_regs = {
 	.pinctrl	= OMAP1510_GPIO_PIN_CONTROL,
 };
 
-static struct omap_gpio_platform_data omap15xx_gpio_config __initdata = {
+static struct omap_gpio_platform_data omap15xx_gpio_config = {
 	.bank_width		= 16,
 	.regs                   = &omap15xx_gpio_regs,
 };
diff --git a/arch/arm/mach-omap1/gpio16xx.c b/arch/arm/mach-omap1/gpio16xx.c
index 16e7fcf63edf..6e6ec93dcbb3 100644
--- a/arch/arm/mach-omap1/gpio16xx.c
+++ b/arch/arm/mach-omap1/gpio16xx.c
@@ -31,7 +31,7 @@
 #define SYSCONFIG_WORD			0x14
 
 /* mpu gpio */
-static struct resource omap16xx_mpu_gpio_resources[] __initdata = {
+static struct resource omap16xx_mpu_gpio_resources[] = {
 	{
 		.start	= OMAP1_MPUIO_VBASE,
 		.end	= OMAP1_MPUIO_VBASE + SZ_2K - 1,
@@ -54,7 +54,7 @@ static struct omap_gpio_reg_offs omap16xx_mpuio_regs = {
 	.irqctrl	= OMAP_MPUIO_GPIO_INT_EDGE,
 };
 
-static struct omap_gpio_platform_data omap16xx_mpu_gpio_config __initdata = {
+static struct omap_gpio_platform_data omap16xx_mpu_gpio_config = {
 	.is_mpuio		= true,
 	.bank_width		= 16,
 	.bank_stride		= 1,
@@ -72,7 +72,7 @@ static struct platform_device omap16xx_mpu_gpio = {
 };
 
 /* gpio1 */
-static struct resource omap16xx_gpio1_resources[] __initdata = {
+static struct resource omap16xx_gpio1_resources[] = {
 	{
 		.start	= OMAP1610_GPIO1_BASE,
 		.end	= OMAP1610_GPIO1_BASE + SZ_2K - 1,
@@ -100,7 +100,7 @@ static struct omap_gpio_reg_offs omap16xx_gpio_regs = {
 	.edgectrl2	= OMAP1610_GPIO_EDGE_CTRL2,
 };
 
-static struct omap_gpio_platform_data omap16xx_gpio1_config __initdata = {
+static struct omap_gpio_platform_data omap16xx_gpio1_config = {
 	.bank_width		= 16,
 	.regs                   = &omap16xx_gpio_regs,
 };
@@ -116,7 +116,7 @@ static struct platform_device omap16xx_gpio1 = {
 };
 
 /* gpio2 */
-static struct resource omap16xx_gpio2_resources[] __initdata = {
+static struct resource omap16xx_gpio2_resources[] = {
 	{
 		.start	= OMAP1610_GPIO2_BASE,
 		.end	= OMAP1610_GPIO2_BASE + SZ_2K - 1,
@@ -128,7 +128,7 @@ static struct resource omap16xx_gpio2_resources[] __initdata = {
 	},
 };
 
-static struct omap_gpio_platform_data omap16xx_gpio2_config __initdata = {
+static struct omap_gpio_platform_data omap16xx_gpio2_config = {
 	.bank_width		= 16,
 	.regs                   = &omap16xx_gpio_regs,
 };
@@ -144,7 +144,7 @@ static struct platform_device omap16xx_gpio2 = {
 };
 
 /* gpio3 */
-static struct resource omap16xx_gpio3_resources[] __initdata = {
+static struct resource omap16xx_gpio3_resources[] = {
 	{
 		.start	= OMAP1610_GPIO3_BASE,
 		.end	= OMAP1610_GPIO3_BASE + SZ_2K - 1,
@@ -156,7 +156,7 @@ static struct resource omap16xx_gpio3_resources[] __initdata = {
 	},
 };
 
-static struct omap_gpio_platform_data omap16xx_gpio3_config __initdata = {
+static struct omap_gpio_platform_data omap16xx_gpio3_config = {
 	.bank_width		= 16,
 	.regs                   = &omap16xx_gpio_regs,
 };
@@ -172,7 +172,7 @@ static struct platform_device omap16xx_gpio3 = {
 };
 
 /* gpio4 */
-static struct resource omap16xx_gpio4_resources[] __initdata = {
+static struct resource omap16xx_gpio4_resources[] = {
 	{
 		.start	= OMAP1610_GPIO4_BASE,
 		.end	= OMAP1610_GPIO4_BASE + SZ_2K - 1,
@@ -184,7 +184,7 @@ static struct resource omap16xx_gpio4_resources[] __initdata = {
 	},
 };
 
-static struct omap_gpio_platform_data omap16xx_gpio4_config __initdata = {
+static struct omap_gpio_platform_data omap16xx_gpio4_config = {
 	.bank_width		= 16,
 	.regs                   = &omap16xx_gpio_regs,
 };
diff --git a/arch/arm/mach-omap1/gpio7xx.c b/arch/arm/mach-omap1/gpio7xx.c
index 8136fdc89130..4612d2506a2d 100644
--- a/arch/arm/mach-omap1/gpio7xx.c
+++ b/arch/arm/mach-omap1/gpio7xx.c
@@ -30,7 +30,7 @@
 #define OMAP1_MPUIO_VBASE		OMAP1_MPUIO_BASE
 
 /* mpu gpio */
-static struct resource omap7xx_mpu_gpio_resources[] __initdata = {
+static struct resource omap7xx_mpu_gpio_resources[] = {
 	{
 		.start	= OMAP1_MPUIO_VBASE,
 		.end	= OMAP1_MPUIO_VBASE + SZ_2K - 1,
@@ -53,7 +53,7 @@ static struct omap_gpio_reg_offs omap7xx_mpuio_regs = {
 	.irqctrl	= OMAP_MPUIO_GPIO_INT_EDGE >> 1,
 };
 
-static struct omap_gpio_platform_data omap7xx_mpu_gpio_config __initdata = {
+static struct omap_gpio_platform_data omap7xx_mpu_gpio_config = {
 	.is_mpuio		= true,
 	.bank_width		= 16,
 	.bank_stride		= 2,
@@ -71,7 +71,7 @@ static struct platform_device omap7xx_mpu_gpio = {
 };
 
 /* gpio1 */
-static struct resource omap7xx_gpio1_resources[] __initdata = {
+static struct resource omap7xx_gpio1_resources[] = {
 	{
 		.start	= OMAP7XX_GPIO1_BASE,
 		.end	= OMAP7XX_GPIO1_BASE + SZ_2K - 1,
@@ -94,7 +94,7 @@ static struct omap_gpio_reg_offs omap7xx_gpio_regs = {
 	.irqctrl	= OMAP7XX_GPIO_INT_CONTROL,
 };
 
-static struct omap_gpio_platform_data omap7xx_gpio1_config __initdata = {
+static struct omap_gpio_platform_data omap7xx_gpio1_config = {
 	.bank_width		= 32,
 	.regs			= &omap7xx_gpio_regs,
 };
@@ -110,7 +110,7 @@ static struct platform_device omap7xx_gpio1 = {
 };
 
 /* gpio2 */
-static struct resource omap7xx_gpio2_resources[] __initdata = {
+static struct resource omap7xx_gpio2_resources[] = {
 	{
 		.start	= OMAP7XX_GPIO2_BASE,
 		.end	= OMAP7XX_GPIO2_BASE + SZ_2K - 1,
@@ -122,7 +122,7 @@ static struct resource omap7xx_gpio2_resources[] __initdata = {
 	},
 };
 
-static struct omap_gpio_platform_data omap7xx_gpio2_config __initdata = {
+static struct omap_gpio_platform_data omap7xx_gpio2_config = {
 	.bank_width		= 32,
 	.regs			= &omap7xx_gpio_regs,
 };
@@ -138,7 +138,7 @@ static struct platform_device omap7xx_gpio2 = {
 };
 
 /* gpio3 */
-static struct resource omap7xx_gpio3_resources[] __initdata = {
+static struct resource omap7xx_gpio3_resources[] = {
 	{
 		.start	= OMAP7XX_GPIO3_BASE,
 		.end	= OMAP7XX_GPIO3_BASE + SZ_2K - 1,
@@ -150,7 +150,7 @@ static struct resource omap7xx_gpio3_resources[] __initdata = {
 	},
 };
 
-static struct omap_gpio_platform_data omap7xx_gpio3_config __initdata = {
+static struct omap_gpio_platform_data omap7xx_gpio3_config = {
 	.bank_width		= 32,
 	.regs			= &omap7xx_gpio_regs,
 };
@@ -166,7 +166,7 @@ static struct platform_device omap7xx_gpio3 = {
 };
 
 /* gpio4 */
-static struct resource omap7xx_gpio4_resources[] __initdata = {
+static struct resource omap7xx_gpio4_resources[] = {
 	{
 		.start	= OMAP7XX_GPIO4_BASE,
 		.end	= OMAP7XX_GPIO4_BASE + SZ_2K - 1,
@@ -178,7 +178,7 @@ static struct resource omap7xx_gpio4_resources[] __initdata = {
 	},
 };
 
-static struct omap_gpio_platform_data omap7xx_gpio4_config __initdata = {
+static struct omap_gpio_platform_data omap7xx_gpio4_config = {
 	.bank_width		= 32,
 	.regs			= &omap7xx_gpio_regs,
 };
@@ -194,7 +194,7 @@ static struct platform_device omap7xx_gpio4 = {
 };
 
 /* gpio5 */
-static struct resource omap7xx_gpio5_resources[] __initdata = {
+static struct resource omap7xx_gpio5_resources[] = {
 	{
 		.start	= OMAP7XX_GPIO5_BASE,
 		.end	= OMAP7XX_GPIO5_BASE + SZ_2K - 1,
@@ -206,7 +206,7 @@ static struct resource omap7xx_gpio5_resources[] __initdata = {
 	},
 };
 
-static struct omap_gpio_platform_data omap7xx_gpio5_config __initdata = {
+static struct omap_gpio_platform_data omap7xx_gpio5_config = {
 	.bank_width		= 32,
 	.regs			= &omap7xx_gpio_regs,
 };
@@ -222,7 +222,7 @@ static struct platform_device omap7xx_gpio5 = {
 };
 
 /* gpio6 */
-static struct resource omap7xx_gpio6_resources[] __initdata = {
+static struct resource omap7xx_gpio6_resources[] = {
 	{
 		.start	= OMAP7XX_GPIO6_BASE,
 		.end	= OMAP7XX_GPIO6_BASE + SZ_2K - 1,
@@ -234,7 +234,7 @@ static struct resource omap7xx_gpio6_resources[] __initdata = {
 	},
 };
 
-static struct omap_gpio_platform_data omap7xx_gpio6_config __initdata = {
+static struct omap_gpio_platform_data omap7xx_gpio6_config = {
 	.bank_width		= 32,
 	.regs			= &omap7xx_gpio_regs,
 };
-- 
cgit 


From 77dfca7e45518ea87a4e90f9142b87687f55f708 Mon Sep 17 00:00:00 2001
From: "baker.zhang" <baker.kernel@gmail.com>
Date: Sun, 13 Oct 2013 19:50:09 +0800
Subject: fib_trie: remove duplicated rcu lock

fib_table_lookup has included the rcu lock protection.

Signed-off-by: baker.zhang <baker.kernel@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/fib_frontend.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c
index b3f627ac4ed8..d846304b7b89 100644
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -933,7 +933,6 @@ static void nl_fib_lookup(struct fib_result_nl *frn, struct fib_table *tb)
 		local_bh_disable();
 
 		frn->tb_id = tb->tb_id;
-		rcu_read_lock();
 		frn->err = fib_table_lookup(tb, &fl4, &res, FIB_LOOKUP_NOREF);
 
 		if (!frn->err) {
@@ -942,7 +941,6 @@ static void nl_fib_lookup(struct fib_result_nl *frn, struct fib_table *tb)
 			frn->type = res.type;
 			frn->scope = res.scope;
 		}
-		rcu_read_unlock();
 		local_bh_enable();
 	}
 }
-- 
cgit 


From 768877537de6b9f7c043b73f82baab4f09ee9799 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 18 Oct 2013 12:06:56 +0300
Subject: ax25: cleanup a range test

The current test works fine in practice.  The "amount" variable is
actually used as a boolean so negative values or any non-zero values
count as "true".  However since we don't allow numbers greater than one,
let's not allow negative numbers either.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ax25/af_ax25.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index 4b4d2b779ec1..a00123ebb0ae 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -1735,7 +1735,7 @@ static int ax25_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
 			res = -EFAULT;
 			break;
 		}
-		if (amount > AX25_NOUID_BLOCK) {
+		if (amount < 0 || amount > AX25_NOUID_BLOCK) {
 			res = -EINVAL;
 			break;
 		}
-- 
cgit 


From 5bc225acfe6a6226333061107708033a8d181d39 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Date: Fri, 11 Oct 2013 14:09:54 +0200
Subject: ath9k: add noise floor parameter to ath9k_hw_getchan_noise

Add nf parameter to ath9k_hw_getchan_noise() in order to compute NF for EXT
chains with the same scale of noise floor calculated on CTL chains.
ath9k_hw_getchan_noise() will be used in ath_process_fft() for spectral scan on
HT40 channels

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/calib.c | 10 +++++-----
 drivers/net/wireless/ath/ath9k/calib.h |  3 ++-
 drivers/net/wireless/ath/ath9k/hw.c    |  2 +-
 drivers/net/wireless/ath/ath9k/link.c  |  3 ++-
 4 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/calib.c b/drivers/net/wireless/ath/ath9k/calib.c
index d8db74b0ef66..278365b8a895 100644
--- a/drivers/net/wireless/ath/ath9k/calib.c
+++ b/drivers/net/wireless/ath/ath9k/calib.c
@@ -63,13 +63,13 @@ static s16 ath9k_hw_get_default_nf(struct ath_hw *ah,
 	return ath9k_hw_get_nf_limits(ah, chan)->nominal;
 }
 
-s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan)
+s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan,
+			   s16 nf)
 {
 	s8 noise = ATH_DEFAULT_NOISE_FLOOR;
 
-	if (chan && chan->noisefloor) {
-		s8 delta = chan->noisefloor -
-			   ATH9K_NF_CAL_NOISE_THRESH -
+	if (nf) {
+		s8 delta = nf - ATH9K_NF_CAL_NOISE_THRESH -
 			   ath9k_hw_get_default_nf(ah, chan);
 		if (delta > 0)
 			noise += delta;
@@ -392,7 +392,7 @@ bool ath9k_hw_getnf(struct ath_hw *ah, struct ath9k_channel *chan)
 	clear_bit(NFCAL_PENDING, &caldata->cal_flags);
 	ath9k_hw_update_nfcal_hist_buffer(ah, caldata, nfarray);
 	chan->noisefloor = h[0].privNF;
-	ah->noise = ath9k_hw_getchan_noise(ah, chan);
+	ah->noise = ath9k_hw_getchan_noise(ah, chan, chan->noisefloor);
 	return true;
 }
 EXPORT_SYMBOL(ath9k_hw_getnf);
diff --git a/drivers/net/wireless/ath/ath9k/calib.h b/drivers/net/wireless/ath/ath9k/calib.h
index 3d70b8c2bcdd..b8ed95e9a335 100644
--- a/drivers/net/wireless/ath/ath9k/calib.h
+++ b/drivers/net/wireless/ath/ath9k/calib.h
@@ -116,7 +116,8 @@ void ath9k_init_nfcal_hist_buffer(struct ath_hw *ah,
 void ath9k_hw_bstuck_nfcal(struct ath_hw *ah);
 void ath9k_hw_reset_calibration(struct ath_hw *ah,
 				struct ath9k_cal_list *currCal);
-s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan);
+s16 ath9k_hw_getchan_noise(struct ath_hw *ah, struct ath9k_channel *chan,
+			   s16 nf);
 
 
 #endif /* CALIB_H */
diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c
index dcdbab48709e..54b04155e43b 100644
--- a/drivers/net/wireless/ath/ath9k/hw.c
+++ b/drivers/net/wireless/ath/ath9k/hw.c
@@ -1885,7 +1885,7 @@ int ath9k_hw_reset(struct ath_hw *ah, struct ath9k_channel *chan,
 	} else if (caldata) {
 		clear_bit(PAPRD_PACKET_SENT, &caldata->cal_flags);
 	}
-	ah->noise = ath9k_hw_getchan_noise(ah, chan);
+	ah->noise = ath9k_hw_getchan_noise(ah, chan, chan->noisefloor);
 
 	if (fastcc) {
 		r = ath9k_hw_do_fastcc(ah, chan);
diff --git a/drivers/net/wireless/ath/ath9k/link.c b/drivers/net/wireless/ath/ath9k/link.c
index 84a60644f93a..b7975195d740 100644
--- a/drivers/net/wireless/ath/ath9k/link.c
+++ b/drivers/net/wireless/ath/ath9k/link.c
@@ -518,7 +518,8 @@ void ath_update_survey_nf(struct ath_softc *sc, int channel)
 
 	if (chan->noisefloor) {
 		survey->filled |= SURVEY_INFO_NOISE_DBM;
-		survey->noise = ath9k_hw_getchan_noise(ah, chan);
+		survey->noise = ath9k_hw_getchan_noise(ah, chan,
+						       chan->noisefloor);
 	}
 }
 
-- 
cgit 


From e07f01e4c7d583adb1ec25e63a52db5fc10a94d3 Mon Sep 17 00:00:00 2001
From: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Date: Fri, 11 Oct 2013 14:09:55 +0200
Subject: ath9k: add HT40 spectral scan capability

Add spectral scan feature on HT40 channels for ath9k. This patch extends
previous capability added by Simon Wunderlich

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi83@gmail.com>
Reviewed-by: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Tested-by: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ath9k.h |  29 +++++++
 drivers/net/wireless/ath/ath9k/recv.c  | 146 ++++++++++++++++++++++++---------
 2 files changed, 137 insertions(+), 38 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 5492a0ce0729..1fce36dd9088 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -886,6 +886,7 @@ static inline u8 spectral_bitmap_weight(u8 *bins)
  */
 enum ath_fft_sample_type {
 	ATH_FFT_SAMPLE_HT20 = 1,
+	ATH_FFT_SAMPLE_HT20_40,
 };
 
 struct fft_sample_tlv {
@@ -912,6 +913,34 @@ struct fft_sample_ht20 {
 	u8 data[SPECTRAL_HT20_NUM_BINS];
 } __packed;
 
+struct fft_sample_ht20_40 {
+	struct fft_sample_tlv tlv;
+
+	u8 channel_type;
+	__be16 freq;
+
+	s8 lower_rssi;
+	s8 upper_rssi;
+
+	__be64 tsf;
+
+	s8 lower_noise;
+	s8 upper_noise;
+
+	__be16 lower_max_magnitude;
+	__be16 upper_max_magnitude;
+
+	u8 lower_max_index;
+	u8 upper_max_index;
+
+	u8 lower_bitmap_weight;
+	u8 upper_bitmap_weight;
+
+	u8 max_exp;
+
+	u8 data[SPECTRAL_HT20_40_NUM_BINS];
+} __packed;
+
 void ath9k_tasklet(unsigned long data);
 int ath_cabq_update(struct ath_softc *);
 
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index a05164166de8..e37559a85bf6 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -972,14 +972,15 @@ static int ath_process_fft(struct ath_softc *sc, struct ieee80211_hdr *hdr,
 {
 #ifdef CONFIG_ATH9K_DEBUGFS
 	struct ath_hw *ah = sc->sc_ah;
-	u8 bins[SPECTRAL_HT20_NUM_BINS];
-	u8 *vdata = (u8 *)hdr;
-	struct fft_sample_ht20 fft_sample;
+	u8 num_bins, *bins, *vdata = (u8 *)hdr;
+	struct fft_sample_ht20 fft_sample_20;
+	struct fft_sample_ht20_40 fft_sample_40;
+	struct fft_sample_tlv *tlv;
 	struct ath_radar_info *radar_info;
-	struct ath_ht20_mag_info *mag_info;
 	int len = rs->rs_datalen;
 	int dc_pos;
-	u16 length, max_magnitude;
+	u16 fft_len, length, freq = ah->curchan->chan->center_freq;
+	enum nl80211_channel_type chan_type;
 
 	/* AR9280 and before report via ATH9K_PHYERR_RADAR, AR93xx and newer
 	 * via ATH9K_PHYERR_SPECTRAL. Haven't seen ATH9K_PHYERR_FALSE_RADAR_EXT
@@ -997,45 +998,44 @@ static int ath_process_fft(struct ath_softc *sc, struct ieee80211_hdr *hdr,
 	if (!(radar_info->pulse_bw_info & SPECTRAL_SCAN_BITMASK))
 		return 0;
 
-	/* Variation in the data length is possible and will be fixed later.
-	 * Note that we only support HT20 for now.
-	 *
-	 * TODO: add HT20_40 support as well.
-	 */
-	if ((len > SPECTRAL_HT20_TOTAL_DATA_LEN + 2) ||
-	    (len < SPECTRAL_HT20_TOTAL_DATA_LEN - 1))
-		return 1;
-
-	fft_sample.tlv.type = ATH_FFT_SAMPLE_HT20;
-	length = sizeof(fft_sample) - sizeof(fft_sample.tlv);
-	fft_sample.tlv.length = __cpu_to_be16(length);
+	chan_type = cfg80211_get_chandef_type(&sc->hw->conf.chandef);
+	if ((chan_type == NL80211_CHAN_HT40MINUS) ||
+	    (chan_type == NL80211_CHAN_HT40PLUS)) {
+		fft_len = SPECTRAL_HT20_40_TOTAL_DATA_LEN;
+		num_bins = SPECTRAL_HT20_40_NUM_BINS;
+		bins = (u8 *)fft_sample_40.data;
+	} else {
+		fft_len = SPECTRAL_HT20_TOTAL_DATA_LEN;
+		num_bins = SPECTRAL_HT20_NUM_BINS;
+		bins = (u8 *)fft_sample_20.data;
+	}
 
-	fft_sample.freq = __cpu_to_be16(ah->curchan->chan->center_freq);
-	fft_sample.rssi = fix_rssi_inv_only(rs->rs_rssi_ctl0);
-	fft_sample.noise = ah->noise;
+	/* Variation in the data length is possible and will be fixed later */
+	if ((len > fft_len + 2) || (len < fft_len - 1))
+		return 1;
 
-	switch (len - SPECTRAL_HT20_TOTAL_DATA_LEN) {
+	switch (len - fft_len) {
 	case 0:
 		/* length correct, nothing to do. */
-		memcpy(bins, vdata, SPECTRAL_HT20_NUM_BINS);
+		memcpy(bins, vdata, num_bins);
 		break;
 	case -1:
 		/* first byte missing, duplicate it. */
-		memcpy(&bins[1], vdata, SPECTRAL_HT20_NUM_BINS - 1);
+		memcpy(&bins[1], vdata, num_bins - 1);
 		bins[0] = vdata[0];
 		break;
 	case 2:
 		/* MAC added 2 extra bytes at bin 30 and 32, remove them. */
 		memcpy(bins, vdata, 30);
 		bins[30] = vdata[31];
-		memcpy(&bins[31], &vdata[33], SPECTRAL_HT20_NUM_BINS - 31);
+		memcpy(&bins[31], &vdata[33], num_bins - 31);
 		break;
 	case 1:
 		/* MAC added 2 extra bytes AND first byte is missing. */
 		bins[0] = vdata[0];
-		memcpy(&bins[0], vdata, 30);
+		memcpy(&bins[1], vdata, 30);
 		bins[31] = vdata[31];
-		memcpy(&bins[32], &vdata[33], SPECTRAL_HT20_NUM_BINS - 32);
+		memcpy(&bins[32], &vdata[33], num_bins - 32);
 		break;
 	default:
 		return 1;
@@ -1044,23 +1044,93 @@ static int ath_process_fft(struct ath_softc *sc, struct ieee80211_hdr *hdr,
 	/* DC value (value in the middle) is the blind spot of the spectral
 	 * sample and invalid, interpolate it.
 	 */
-	dc_pos = SPECTRAL_HT20_NUM_BINS / 2;
+	dc_pos = num_bins / 2;
 	bins[dc_pos] = (bins[dc_pos + 1] + bins[dc_pos - 1]) / 2;
 
-	/* mag data is at the end of the frame, in front of radar_info */
-	mag_info = ((struct ath_ht20_mag_info *)radar_info) - 1;
+	if ((chan_type == NL80211_CHAN_HT40MINUS) ||
+	    (chan_type == NL80211_CHAN_HT40PLUS)) {
+		s8 lower_rssi, upper_rssi;
+		s16 ext_nf;
+		u8 lower_max_index, upper_max_index;
+		u8 lower_bitmap_w, upper_bitmap_w;
+		u16 lower_mag, upper_mag;
+		struct ath9k_hw_cal_data *caldata = ah->caldata;
+		struct ath_ht20_40_mag_info *mag_info;
+
+		if (caldata)
+			ext_nf = ath9k_hw_getchan_noise(ah, ah->curchan,
+					caldata->nfCalHist[3].privNF);
+		else
+			ext_nf = ATH_DEFAULT_NOISE_FLOOR;
+
+		length = sizeof(fft_sample_40) - sizeof(struct fft_sample_tlv);
+		fft_sample_40.tlv.type = ATH_FFT_SAMPLE_HT20_40;
+		fft_sample_40.tlv.length = __cpu_to_be16(length);
+		fft_sample_40.freq = __cpu_to_be16(freq);
+		fft_sample_40.channel_type = chan_type;
 
-	/* copy raw bins without scaling them */
-	memcpy(fft_sample.data, bins, SPECTRAL_HT20_NUM_BINS);
-	fft_sample.max_exp = mag_info->max_exp & 0xf;
+		if (chan_type == NL80211_CHAN_HT40PLUS) {
+			lower_rssi = fix_rssi_inv_only(rs->rs_rssi_ctl0);
+			upper_rssi = fix_rssi_inv_only(rs->rs_rssi_ext0);
+
+			fft_sample_40.lower_noise = ah->noise;
+			fft_sample_40.upper_noise = ext_nf;
+		} else {
+			lower_rssi = fix_rssi_inv_only(rs->rs_rssi_ext0);
+			upper_rssi = fix_rssi_inv_only(rs->rs_rssi_ctl0);
 
-	max_magnitude = spectral_max_magnitude(mag_info->all_bins);
-	fft_sample.max_magnitude = __cpu_to_be16(max_magnitude);
-	fft_sample.max_index = spectral_max_index(mag_info->all_bins);
-	fft_sample.bitmap_weight = spectral_bitmap_weight(mag_info->all_bins);
-	fft_sample.tsf = __cpu_to_be64(tsf);
+			fft_sample_40.lower_noise = ext_nf;
+			fft_sample_40.upper_noise = ah->noise;
+		}
+		fft_sample_40.lower_rssi = lower_rssi;
+		fft_sample_40.upper_rssi = upper_rssi;
+
+		mag_info = ((struct ath_ht20_40_mag_info *)radar_info) - 1;
+		lower_mag = spectral_max_magnitude(mag_info->lower_bins);
+		upper_mag = spectral_max_magnitude(mag_info->upper_bins);
+		fft_sample_40.lower_max_magnitude = __cpu_to_be16(lower_mag);
+		fft_sample_40.upper_max_magnitude = __cpu_to_be16(upper_mag);
+		lower_max_index = spectral_max_index(mag_info->lower_bins);
+		upper_max_index = spectral_max_index(mag_info->upper_bins);
+		fft_sample_40.lower_max_index = lower_max_index;
+		fft_sample_40.upper_max_index = upper_max_index;
+		lower_bitmap_w = spectral_bitmap_weight(mag_info->lower_bins);
+		upper_bitmap_w = spectral_bitmap_weight(mag_info->upper_bins);
+		fft_sample_40.lower_bitmap_weight = lower_bitmap_w;
+		fft_sample_40.upper_bitmap_weight = upper_bitmap_w;
+		fft_sample_40.max_exp = mag_info->max_exp & 0xf;
+
+		fft_sample_40.tsf = __cpu_to_be64(tsf);
+
+		tlv = (struct fft_sample_tlv *)&fft_sample_40;
+	} else {
+		u8 max_index, bitmap_w;
+		u16 magnitude;
+		struct ath_ht20_mag_info *mag_info;
+
+		length = sizeof(fft_sample_20) - sizeof(struct fft_sample_tlv);
+		fft_sample_20.tlv.type = ATH_FFT_SAMPLE_HT20;
+		fft_sample_20.tlv.length = __cpu_to_be16(length);
+		fft_sample_20.freq = __cpu_to_be16(freq);
+
+		fft_sample_20.rssi = fix_rssi_inv_only(rs->rs_rssi_ctl0);
+		fft_sample_20.noise = ah->noise;
+
+		mag_info = ((struct ath_ht20_mag_info *)radar_info) - 1;
+		magnitude = spectral_max_magnitude(mag_info->all_bins);
+		fft_sample_20.max_magnitude = __cpu_to_be16(magnitude);
+		max_index = spectral_max_index(mag_info->all_bins);
+		fft_sample_20.max_index = max_index;
+		bitmap_w = spectral_bitmap_weight(mag_info->all_bins);
+		fft_sample_20.bitmap_weight = bitmap_w;
+		fft_sample_20.max_exp = mag_info->max_exp & 0xf;
+
+		fft_sample_20.tsf = __cpu_to_be64(tsf);
+
+		tlv = (struct fft_sample_tlv *)&fft_sample_20;
+	}
 
-	ath_debug_send_fft_sample(sc, &fft_sample.tlv);
+	ath_debug_send_fft_sample(sc, tlv);
 	return 1;
 #else
 	return 0;
-- 
cgit 


From 1dfba3060fe7ee03ccec25a91d35085142dfc295 Mon Sep 17 00:00:00 2001
From: Dan Williams <dcbw@redhat.com>
Date: Mon, 14 Oct 2013 17:51:55 -0500
Subject: libertas: move firmware lifetime handling to firmware.c

Previously, each bus type was responsible for freeing the firmware
structure, but some did that badly.  Move responsibility for freeing
firmware into firmware.c so that it's done once and correctly, instead
of happening in multiple places in bus-specific code.

This fixes a use-after-free bug found by Dr. H. Nikolaus Schaller where
the SDIO code forgot to NULL priv->helper_fw after freeing it.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/libertas/firmware.c |  5 +++++
 drivers/net/wireless/libertas/if_cs.c    |  8 ++------
 drivers/net/wireless/libertas/if_sdio.c  |  8 ++------
 drivers/net/wireless/libertas/if_spi.c   |  4 ----
 drivers/net/wireless/libertas/if_usb.c   | 17 +++++++----------
 5 files changed, 16 insertions(+), 26 deletions(-)

diff --git a/drivers/net/wireless/libertas/firmware.c b/drivers/net/wireless/libertas/firmware.c
index c0f9e7e862f6..51b92b5df119 100644
--- a/drivers/net/wireless/libertas/firmware.c
+++ b/drivers/net/wireless/libertas/firmware.c
@@ -53,6 +53,11 @@ static void main_firmware_cb(const struct firmware *firmware, void *context)
 
 	/* Firmware found! */
 	lbs_fw_loaded(priv, 0, priv->helper_fw, firmware);
+	if (priv->helper_fw) {
+		release_firmware (priv->helper_fw);
+		priv->helper_fw = NULL;
+	}
+	release_firmware (firmware);
 }
 
 static void helper_firmware_cb(const struct firmware *firmware, void *context)
diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c
index c94dd6802672..ef8c98e21098 100644
--- a/drivers/net/wireless/libertas/if_cs.c
+++ b/drivers/net/wireless/libertas/if_cs.c
@@ -754,14 +754,14 @@ static void if_cs_prog_firmware(struct lbs_private *priv, int ret,
 	if (ret == 0 && (card->model != MODEL_8305))
 		ret = if_cs_prog_real(card, mainfw);
 	if (ret)
-		goto out;
+		return;
 
 	/* Now actually get the IRQ */
 	ret = request_irq(card->p_dev->irq, if_cs_interrupt,
 		IRQF_SHARED, DRV_NAME, card);
 	if (ret) {
 		pr_err("error in request_irq\n");
-		goto out;
+		return;
 	}
 
 	/*
@@ -777,10 +777,6 @@ static void if_cs_prog_firmware(struct lbs_private *priv, int ret,
 		pr_err("could not activate card\n");
 		free_irq(card->p_dev->irq, card);
 	}
-
-out:
-	release_firmware(helper);
-	release_firmware(mainfw);
 }
 
 
diff --git a/drivers/net/wireless/libertas/if_sdio.c b/drivers/net/wireless/libertas/if_sdio.c
index 45578335e420..991238afd1b6 100644
--- a/drivers/net/wireless/libertas/if_sdio.c
+++ b/drivers/net/wireless/libertas/if_sdio.c
@@ -708,20 +708,16 @@ static void if_sdio_do_prog_firmware(struct lbs_private *priv, int ret,
 
 	ret = if_sdio_prog_helper(card, helper);
 	if (ret)
-		goto out;
+		return;
 
 	lbs_deb_sdio("Helper firmware loaded\n");
 
 	ret = if_sdio_prog_real(card, mainfw);
 	if (ret)
-		goto out;
+		return;
 
 	lbs_deb_sdio("Firmware loaded\n");
 	if_sdio_finish_power_on(card);
-
-out:
-	release_firmware(helper);
-	release_firmware(mainfw);
 }
 
 static int if_sdio_prog_firmware(struct if_sdio_card *card)
diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c
index 5d39ec880d84..83669151bb82 100644
--- a/drivers/net/wireless/libertas/if_spi.c
+++ b/drivers/net/wireless/libertas/if_spi.c
@@ -1094,11 +1094,7 @@ static int if_spi_init_card(struct if_spi_card *card)
 		goto out;
 
 out:
-	release_firmware(helper);
-	release_firmware(mainfw);
-
 	lbs_deb_leave_args(LBS_DEB_SPI, "err %d\n", err);
-
 	return err;
 }
 
diff --git a/drivers/net/wireless/libertas/if_usb.c b/drivers/net/wireless/libertas/if_usb.c
index 27980778d992..dff08a2896a3 100644
--- a/drivers/net/wireless/libertas/if_usb.c
+++ b/drivers/net/wireless/libertas/if_usb.c
@@ -844,7 +844,7 @@ static void if_usb_prog_firmware(struct lbs_private *priv, int ret,
 	cardp->fw = fw;
 	if (check_fwfile_format(cardp->fw->data, cardp->fw->size)) {
 		ret = -EINVAL;
-		goto release_fw;
+		goto done;
 	}
 
 	/* Cancel any pending usb business */
@@ -861,7 +861,7 @@ restart:
 	if (if_usb_submit_rx_urb_fwload(cardp) < 0) {
 		lbs_deb_usbd(&cardp->udev->dev, "URB submission is failed\n");
 		ret = -EIO;
-		goto release_fw;
+		goto done;
 	}
 
 	cardp->bootcmdresp = 0;
@@ -883,14 +883,14 @@ restart:
 		usb_kill_urb(cardp->tx_urb);
 		if (if_usb_submit_rx_urb(cardp) < 0)
 			ret = -EIO;
-		goto release_fw;
+		goto done;
 	} else if (cardp->bootcmdresp <= 0) {
 		if (--reset_count >= 0) {
 			if_usb_reset_device(cardp);
 			goto restart;
 		}
 		ret = -EIO;
-		goto release_fw;
+		goto done;
 	}
 
 	i = 0;
@@ -921,14 +921,14 @@ restart:
 
 		pr_info("FW download failure, time = %d ms\n", i * 100);
 		ret = -EIO;
-		goto release_fw;
+		goto done;
 	}
 
 	cardp->priv->fw_ready = 1;
 	if_usb_submit_rx_urb(cardp);
 
 	if (lbs_start_card(priv))
-		goto release_fw;
+		goto done;
 
 	if_usb_setup_firmware(priv);
 
@@ -939,11 +939,8 @@ restart:
 	if (lbs_host_sleep_cfg(priv, priv->wol_criteria, NULL))
 		priv->ehs_remove_supported = false;
 
- release_fw:
-	release_firmware(cardp->fw);
-	cardp->fw = NULL;
-
  done:
+	cardp->fw = NULL;
 	lbs_deb_leave(LBS_DEB_USB);
 }
 
-- 
cgit 


From 95a5992e43046104ca92c6fb93a80d140d1aa7ce Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Mon, 14 Oct 2013 11:06:03 +0200
Subject: ath9k: dfs kill ath9k specyfic code

Kill of using ath9k_hw_common() function
in dfs detector code.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Reviewed-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c | 13 ++++++-------
 drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h |  8 +++++---
 drivers/net/wireless/ath/ath9k/init.c                 |  4 ++--
 3 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c b/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c
index 491305c81fce..c839a78812d4 100644
--- a/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c
+++ b/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c
@@ -19,7 +19,7 @@
 
 #include "dfs_pattern_detector.h"
 #include "dfs_pri_detector.h"
-#include "ath9k.h"
+#include "../ath.h"
 
 /*
  * tolerated deviation of radar time stamp in usecs on both sides
@@ -143,7 +143,6 @@ channel_detector_create(struct dfs_pattern_detector *dpd, u16 freq)
 {
 	u32 sz, i;
 	struct channel_detector *cd;
-	struct ath_common *common = ath9k_hw_common(dpd->ah);
 
 	cd = kmalloc(sizeof(*cd), GFP_ATOMIC);
 	if (cd == NULL)
@@ -167,7 +166,7 @@ channel_detector_create(struct dfs_pattern_detector *dpd, u16 freq)
 	return cd;
 
 fail:
-	ath_dbg(common, DFS,
+	ath_dbg(dpd->common, DFS,
 		"failed to allocate channel_detector for freq=%d\n", freq);
 	channel_detector_exit(dpd, cd);
 	return NULL;
@@ -242,7 +241,7 @@ dpd_add_pulse(struct dfs_pattern_detector *dpd, struct pulse_event *event)
 		struct pri_detector *pd = cd->detectors[i];
 		struct pri_sequence *ps = pd->add_pulse(pd, event);
 		if (ps != NULL) {
-			ath_dbg(ath9k_hw_common(dpd->ah), DFS,
+			ath_dbg(dpd->common, DFS,
 				"DFS: radar found on freq=%d: id=%d, pri=%d, "
 				"count=%d, count_false=%d\n",
 				event->freq, pd->rs->type_id,
@@ -288,10 +287,10 @@ static struct dfs_pattern_detector default_dpd = {
 };
 
 struct dfs_pattern_detector *
-dfs_pattern_detector_init(struct ath_hw *ah, enum nl80211_dfs_regions region)
+dfs_pattern_detector_init(struct ath_common *common,
+			  enum nl80211_dfs_regions region)
 {
 	struct dfs_pattern_detector *dpd;
-	struct ath_common *common = ath9k_hw_common(ah);
 
 	dpd = kmalloc(sizeof(*dpd), GFP_KERNEL);
 	if (dpd == NULL)
@@ -300,7 +299,7 @@ dfs_pattern_detector_init(struct ath_hw *ah, enum nl80211_dfs_regions region)
 	*dpd = default_dpd;
 	INIT_LIST_HEAD(&dpd->channel_detectors);
 
-	dpd->ah = ah;
+	dpd->common = common;
 	if (dpd->set_dfs_domain(dpd, region))
 		return dpd;
 
diff --git a/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h b/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h
index 90a5abcc4265..b09946fed938 100644
--- a/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h
+++ b/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h
@@ -81,7 +81,7 @@ struct dfs_pattern_detector {
 	u8 num_radar_types;
 	u64 last_pulse_ts;
 	/* needed for ath_dbg() */
-	struct ath_hw *ah;
+	struct ath_common *common;
 
 	const struct radar_detector_specs *radar_spec;
 	struct list_head channel_detectors;
@@ -94,10 +94,12 @@ struct dfs_pattern_detector {
  */
 #if defined(CONFIG_ATH9K_DFS_CERTIFIED)
 extern struct dfs_pattern_detector *
-dfs_pattern_detector_init(struct ath_hw *ah, enum nl80211_dfs_regions region);
+dfs_pattern_detector_init(struct ath_common *common,
+			  enum nl80211_dfs_regions region);
 #else
 static inline struct dfs_pattern_detector *
-dfs_pattern_detector_init(struct ath_hw *ah, enum nl80211_dfs_regions region)
+dfs_pattern_detector_init(struct ath_common *common,
+			  enum nl80211_dfs_regions region)
 {
 	return NULL;
 }
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 7df728f36330..ba02ef2ab8a6 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -680,7 +680,8 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
 	sc->sc_ah = ah;
 	pCap = &ah->caps;
 
-	sc->dfs_detector = dfs_pattern_detector_init(ah, NL80211_DFS_UNSET);
+	common = ath9k_hw_common(ah);
+	sc->dfs_detector = dfs_pattern_detector_init(common, NL80211_DFS_UNSET);
 
 	if (!pdata) {
 		ah->ah_flags |= AH_USE_EEPROM;
@@ -694,7 +695,6 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
 		ah->external_reset = pdata->external_reset;
 	}
 
-	common = ath9k_hw_common(ah);
 	common->ops = &ah->reg_ops;
 	common->bus_ops = bus_ops;
 	common->ah = ah;
-- 
cgit 


From d265214b614aac62cdb8baed7ed3d77494cc9bdc Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Mon, 14 Oct 2013 11:06:04 +0200
Subject: ath9k: dfs move ath_dfs_pool_stats

Move ath_dfs_pool_stats to dfs_pattern_detector
code to be not specyfic only for ath9k.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Reviewed-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/dfs_debug.c            |  9 ++++++---
 drivers/net/wireless/ath/ath9k/dfs_debug.h            | 16 ----------------
 drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c |  7 +++++++
 drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h | 14 ++++++++++++++
 drivers/net/wireless/ath/ath9k/dfs_pri_detector.c     |  8 ++++++--
 drivers/net/wireless/ath/ath9k/dfs_pri_detector.h     |  2 ++
 6 files changed, 35 insertions(+), 21 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/dfs_debug.c b/drivers/net/wireless/ath/ath9k/dfs_debug.c
index 821599135d8a..990c37630725 100644
--- a/drivers/net/wireless/ath/ath9k/dfs_debug.c
+++ b/drivers/net/wireless/ath/ath9k/dfs_debug.c
@@ -20,16 +20,16 @@
 
 #include "ath9k.h"
 #include "dfs_debug.h"
+#include "dfs_pattern_detector.h"
 
-
-struct ath_dfs_pool_stats global_dfs_pool_stats = { 0 };
+static struct ath_dfs_pool_stats dfs_pool_stats = { 0 };
 
 #define ATH9K_DFS_STAT(s, p) \
 	len += scnprintf(buf + len, size - len, "%28s : %10u\n", s, \
 			 sc->debug.stats.dfs_stats.p);
 #define ATH9K_DFS_POOL_STAT(s, p) \
 	len += scnprintf(buf + len, size - len, "%28s : %10u\n", s, \
-			 global_dfs_pool_stats.p);
+			 dfs_pool_stats.p);
 
 static ssize_t read_file_dfs(struct file *file, char __user *user_buf,
 			     size_t count, loff_t *ppos)
@@ -44,6 +44,9 @@ static ssize_t read_file_dfs(struct file *file, char __user *user_buf,
 	if (buf == NULL)
 		return -ENOMEM;
 
+	if (sc->dfs_detector)
+		dfs_pool_stats = sc->dfs_detector->get_stats(sc->dfs_detector);
+
 	len += scnprintf(buf + len, size - len, "DFS support for "
 			 "macVersion = 0x%x, macRev = 0x%x: %s\n",
 			 hw_ver->macVersion, hw_ver->macRev,
diff --git a/drivers/net/wireless/ath/ath9k/dfs_debug.h b/drivers/net/wireless/ath/ath9k/dfs_debug.h
index e36810a4b585..0a7ddf4c88c9 100644
--- a/drivers/net/wireless/ath/ath9k/dfs_debug.h
+++ b/drivers/net/wireless/ath/ath9k/dfs_debug.h
@@ -51,25 +51,11 @@ struct ath_dfs_stats {
 	u32 radar_detected;
 };
 
-/**
- * struct ath_dfs_pool_stats - DFS Statistics for global pools
- */
-struct ath_dfs_pool_stats {
-	u32 pool_reference;
-	u32 pulse_allocated;
-	u32 pulse_alloc_error;
-	u32 pulse_used;
-	u32 pseq_allocated;
-	u32 pseq_alloc_error;
-	u32 pseq_used;
-};
 #if defined(CONFIG_ATH9K_DFS_DEBUGFS)
 
 #define DFS_STAT_INC(sc, c) (sc->debug.stats.dfs_stats.c++)
 void ath9k_dfs_init_debug(struct ath_softc *sc);
 
-#define DFS_POOL_STAT_INC(c) (global_dfs_pool_stats.c++)
-#define DFS_POOL_STAT_DEC(c) (global_dfs_pool_stats.c--)
 extern struct ath_dfs_pool_stats global_dfs_pool_stats;
 
 #else
@@ -77,8 +63,6 @@ extern struct ath_dfs_pool_stats global_dfs_pool_stats;
 #define DFS_STAT_INC(sc, c) do { } while (0)
 static inline void ath9k_dfs_init_debug(struct ath_softc *sc) { }
 
-#define DFS_POOL_STAT_INC(c) do { } while (0)
-#define DFS_POOL_STAT_DEC(c) do { } while (0)
 #endif /* CONFIG_ATH9K_DFS_DEBUGFS */
 
 #endif /* ATH9K_DFS_DEBUG_H */
diff --git a/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c b/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c
index c839a78812d4..b0dcd1b72f31 100644
--- a/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c
+++ b/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c
@@ -253,6 +253,12 @@ dpd_add_pulse(struct dfs_pattern_detector *dpd, struct pulse_event *event)
 	return false;
 }
 
+static struct ath_dfs_pool_stats
+dpd_get_stats(struct dfs_pattern_detector *dpd)
+{
+	return global_dfs_pool_stats;
+}
+
 static bool dpd_set_domain(struct dfs_pattern_detector *dpd,
 			   enum nl80211_dfs_regions region)
 {
@@ -283,6 +289,7 @@ static struct dfs_pattern_detector default_dpd = {
 	.exit		= dpd_exit,
 	.set_dfs_domain	= dpd_set_domain,
 	.add_pulse	= dpd_add_pulse,
+	.get_stats	= dpd_get_stats,
 	.region		= NL80211_DFS_UNSET,
 };
 
diff --git a/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h b/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h
index b09946fed938..9c752977eeff 100644
--- a/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h
+++ b/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h
@@ -21,6 +21,19 @@
 #include <linux/list.h>
 #include <linux/nl80211.h>
 
+/**
+ * struct ath_dfs_pool_stats - DFS Statistics for global pools
+ */
+struct ath_dfs_pool_stats {
+	u32 pool_reference;
+	u32 pulse_allocated;
+	u32 pulse_alloc_error;
+	u32 pulse_used;
+	u32 pseq_allocated;
+	u32 pseq_alloc_error;
+	u32 pseq_used;
+};
+
 /**
  * struct pulse_event - describing pulses reported by PHY
  * @ts: pulse time stamp in us
@@ -77,6 +90,7 @@ struct dfs_pattern_detector {
 	bool (*add_pulse)(struct dfs_pattern_detector *dpd,
 			  struct pulse_event *pe);
 
+	struct ath_dfs_pool_stats (*get_stats)(struct dfs_pattern_detector *dpd);
 	enum nl80211_dfs_regions region;
 	u8 num_radar_types;
 	u64 last_pulse_ts;
diff --git a/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c b/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c
index c718fc379a10..17b5bf9fd6a1 100644
--- a/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c
+++ b/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c
@@ -17,10 +17,14 @@
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 
-#include "ath9k.h"
+#include "../ath.h"
 #include "dfs_pattern_detector.h"
 #include "dfs_pri_detector.h"
-#include "dfs_debug.h"
+
+struct ath_dfs_pool_stats global_dfs_pool_stats = {};
+
+#define DFS_POOL_STAT_INC(c) (global_dfs_pool_stats.c++)
+#define DFS_POOL_STAT_DEC(c) (global_dfs_pool_stats.c--)
 
 /**
  * struct pulse_elem - elements in pulse queue
diff --git a/drivers/net/wireless/ath/ath9k/dfs_pri_detector.h b/drivers/net/wireless/ath/ath9k/dfs_pri_detector.h
index 723962d1abc6..79f0fff4d1e6 100644
--- a/drivers/net/wireless/ath/ath9k/dfs_pri_detector.h
+++ b/drivers/net/wireless/ath/ath9k/dfs_pri_detector.h
@@ -19,6 +19,8 @@
 
 #include <linux/list.h>
 
+extern struct ath_dfs_pool_stats global_dfs_pool_stats;
+
 /**
  * struct pri_sequence - sequence of pulses matching one PRI
  * @head: list_head
-- 
cgit 


From 379ce86e1f458281ca014a0053cf9350c7dca4bf Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Mon, 14 Oct 2013 11:06:05 +0200
Subject: ath9k: dfs use CFG80211_CERTIFICATION_ONUS flag

Use CFG80211_CERTIFICATION_ONUS flag in the DFS
detector code. This is required as a preparation
for moving DFS detector code from ath9k to ath
module.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Reviewed-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c |  3 +++
 drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h | 10 ----------
 2 files changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c b/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c
index b0dcd1b72f31..c230ffc2ddc7 100644
--- a/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c
+++ b/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c
@@ -299,6 +299,9 @@ dfs_pattern_detector_init(struct ath_common *common,
 {
 	struct dfs_pattern_detector *dpd;
 
+	if (!config_enabled(CONFIG_CFG80211_CERTIFICATION_ONUS))
+		return NULL;
+
 	dpd = kmalloc(sizeof(*dpd), GFP_KERNEL);
 	if (dpd == NULL)
 		return NULL;
diff --git a/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h b/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h
index 9c752977eeff..dde2652b787c 100644
--- a/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h
+++ b/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h
@@ -106,17 +106,7 @@ struct dfs_pattern_detector {
  * @param region: DFS domain to be used, can be NL80211_DFS_UNSET at creation
  * @return instance pointer on success, NULL otherwise
  */
-#if defined(CONFIG_ATH9K_DFS_CERTIFIED)
 extern struct dfs_pattern_detector *
 dfs_pattern_detector_init(struct ath_common *common,
 			  enum nl80211_dfs_regions region);
-#else
-static inline struct dfs_pattern_detector *
-dfs_pattern_detector_init(struct ath_common *common,
-			  enum nl80211_dfs_regions region)
-{
-	return NULL;
-}
-#endif /* CONFIG_ATH9K_DFS_CERTIFIED */
-
 #endif /* DFS_PATTERN_DETECTOR_H */
-- 
cgit 


From ad40d3da1e8683234714c3024219dc722ed1e214 Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Mon, 14 Oct 2013 11:06:06 +0200
Subject: ath9k/ath: move dfs pattern detector to ath

Move the DFS pattern detector code to the ath module so
the other Atheros drivers can make us of it. This makes
no functional changes.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Reviewed-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/Makefile                  |   4 +-
 drivers/net/wireless/ath/ath9k/Makefile            |   4 +-
 drivers/net/wireless/ath/ath9k/dfs.h               |   2 +-
 drivers/net/wireless/ath/ath9k/dfs_debug.c         |   2 +-
 .../net/wireless/ath/ath9k/dfs_pattern_detector.c  | 320 ---------------
 .../net/wireless/ath/ath9k/dfs_pattern_detector.h  | 112 ------
 drivers/net/wireless/ath/ath9k/dfs_pri_detector.c  | 429 ---------------------
 drivers/net/wireless/ath/ath9k/dfs_pri_detector.h  |  77 ----
 drivers/net/wireless/ath/dfs_pattern_detector.c    | 320 +++++++++++++++
 drivers/net/wireless/ath/dfs_pattern_detector.h    | 112 ++++++
 drivers/net/wireless/ath/dfs_pri_detector.c        | 429 +++++++++++++++++++++
 drivers/net/wireless/ath/dfs_pri_detector.h        |  77 ++++
 12 files changed, 944 insertions(+), 944 deletions(-)
 delete mode 100644 drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c
 delete mode 100644 drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h
 delete mode 100644 drivers/net/wireless/ath/ath9k/dfs_pri_detector.c
 delete mode 100644 drivers/net/wireless/ath/ath9k/dfs_pri_detector.h
 create mode 100644 drivers/net/wireless/ath/dfs_pattern_detector.c
 create mode 100644 drivers/net/wireless/ath/dfs_pattern_detector.h
 create mode 100644 drivers/net/wireless/ath/dfs_pri_detector.c
 create mode 100644 drivers/net/wireless/ath/dfs_pri_detector.h

diff --git a/drivers/net/wireless/ath/Makefile b/drivers/net/wireless/ath/Makefile
index 363b05653c7e..7d023b0f13b4 100644
--- a/drivers/net/wireless/ath/Makefile
+++ b/drivers/net/wireless/ath/Makefile
@@ -12,7 +12,9 @@ obj-$(CONFIG_ATH_COMMON)	+= ath.o
 ath-objs :=	main.o \
 		regd.o \
 		hw.o \
-		key.o
+		key.o \
+		dfs_pattern_detector.o \
+		dfs_pri_detector.o
 
 ath-$(CONFIG_ATH_DEBUG) += debug.o
 ccflags-y += -D__CHECK_ENDIAN__
diff --git a/drivers/net/wireless/ath/ath9k/Makefile b/drivers/net/wireless/ath/ath9k/Makefile
index 75ee9e7704ce..6205ef5a9321 100644
--- a/drivers/net/wireless/ath/ath9k/Makefile
+++ b/drivers/net/wireless/ath/ath9k/Makefile
@@ -14,9 +14,7 @@ ath9k-$(CONFIG_ATH9K_AHB) += ahb.o
 ath9k-$(CONFIG_ATH9K_DEBUGFS) += debug.o
 ath9k-$(CONFIG_ATH9K_DFS_DEBUGFS) += dfs_debug.o
 ath9k-$(CONFIG_ATH9K_DFS_CERTIFIED) += \
-		dfs.o \
-		dfs_pattern_detector.o \
-		dfs_pri_detector.o
+		dfs.o
 ath9k-$(CONFIG_PM_SLEEP) += wow.o
 
 obj-$(CONFIG_ATH9K) += ath9k.o
diff --git a/drivers/net/wireless/ath/ath9k/dfs.h b/drivers/net/wireless/ath/ath9k/dfs.h
index 3c839f06a06a..c6fa3d5b5d74 100644
--- a/drivers/net/wireless/ath/ath9k/dfs.h
+++ b/drivers/net/wireless/ath/ath9k/dfs.h
@@ -17,7 +17,7 @@
 
 #ifndef ATH9K_DFS_H
 #define ATH9K_DFS_H
-#include "dfs_pattern_detector.h"
+#include "../dfs_pattern_detector.h"
 
 #if defined(CONFIG_ATH9K_DFS_CERTIFIED)
 /**
diff --git a/drivers/net/wireless/ath/ath9k/dfs_debug.c b/drivers/net/wireless/ath/ath9k/dfs_debug.c
index 990c37630725..90b8342d1ed4 100644
--- a/drivers/net/wireless/ath/ath9k/dfs_debug.c
+++ b/drivers/net/wireless/ath/ath9k/dfs_debug.c
@@ -20,7 +20,7 @@
 
 #include "ath9k.h"
 #include "dfs_debug.h"
-#include "dfs_pattern_detector.h"
+#include "../dfs_pattern_detector.h"
 
 static struct ath_dfs_pool_stats dfs_pool_stats = { 0 };
 
diff --git a/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c b/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c
deleted file mode 100644
index c230ffc2ddc7..000000000000
--- a/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c
+++ /dev/null
@@ -1,320 +0,0 @@
-/*
- * Copyright (c) 2012 Neratec Solutions AG
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include <linux/slab.h>
-#include <linux/export.h>
-
-#include "dfs_pattern_detector.h"
-#include "dfs_pri_detector.h"
-#include "../ath.h"
-
-/*
- * tolerated deviation of radar time stamp in usecs on both sides
- * TODO: this might need to be HW-dependent
- */
-#define PRI_TOLERANCE	16
-
-/**
- * struct radar_types - contains array of patterns defined for one DFS domain
- * @domain: DFS regulatory domain
- * @num_radar_types: number of radar types to follow
- * @radar_types: radar types array
- */
-struct radar_types {
-	enum nl80211_dfs_regions region;
-	u32 num_radar_types;
-	const struct radar_detector_specs *radar_types;
-};
-
-/* percentage on ppb threshold to trigger detection */
-#define MIN_PPB_THRESH	50
-#define PPB_THRESH(PPB) ((PPB * MIN_PPB_THRESH + 50) / 100)
-#define PRF2PRI(PRF) ((1000000 + PRF / 2) / PRF)
-/* percentage of pulse width tolerance */
-#define WIDTH_TOLERANCE 5
-#define WIDTH_LOWER(X) ((X*(100-WIDTH_TOLERANCE)+50)/100)
-#define WIDTH_UPPER(X) ((X*(100+WIDTH_TOLERANCE)+50)/100)
-
-#define ETSI_PATTERN(ID, WMIN, WMAX, PMIN, PMAX, PRF, PPB)	\
-{								\
-	ID, WIDTH_LOWER(WMIN), WIDTH_UPPER(WMAX),		\
-	(PRF2PRI(PMAX) - PRI_TOLERANCE),			\
-	(PRF2PRI(PMIN) * PRF + PRI_TOLERANCE), PRF, PPB * PRF,	\
-	PPB_THRESH(PPB), PRI_TOLERANCE,				\
-}
-
-/* radar types as defined by ETSI EN-301-893 v1.5.1 */
-static const struct radar_detector_specs etsi_radar_ref_types_v15[] = {
-	ETSI_PATTERN(0,  0,  1,  700,  700, 1, 18),
-	ETSI_PATTERN(1,  0,  5,  200, 1000, 1, 10),
-	ETSI_PATTERN(2,  0, 15,  200, 1600, 1, 15),
-	ETSI_PATTERN(3,  0, 15, 2300, 4000, 1, 25),
-	ETSI_PATTERN(4, 20, 30, 2000, 4000, 1, 20),
-	ETSI_PATTERN(5,  0,  2,  300,  400, 3, 10),
-	ETSI_PATTERN(6,  0,  2,  400, 1200, 3, 15),
-};
-
-static const struct radar_types etsi_radar_types_v15 = {
-	.region			= NL80211_DFS_ETSI,
-	.num_radar_types	= ARRAY_SIZE(etsi_radar_ref_types_v15),
-	.radar_types		= etsi_radar_ref_types_v15,
-};
-
-/* for now, we support ETSI radar types, FCC and JP are TODO */
-static const struct radar_types *dfs_domains[] = {
-	&etsi_radar_types_v15,
-};
-
-/**
- * get_dfs_domain_radar_types() - get radar types for a given DFS domain
- * @param domain DFS domain
- * @return radar_types ptr on success, NULL if DFS domain is not supported
- */
-static const struct radar_types *
-get_dfs_domain_radar_types(enum nl80211_dfs_regions region)
-{
-	u32 i;
-	for (i = 0; i < ARRAY_SIZE(dfs_domains); i++) {
-		if (dfs_domains[i]->region == region)
-			return dfs_domains[i];
-	}
-	return NULL;
-}
-
-/**
- * struct channel_detector - detector elements for a DFS channel
- * @head: list_head
- * @freq: frequency for this channel detector in MHz
- * @detectors: array of dynamically created detector elements for this freq
- *
- * Channel detectors are required to provide multi-channel DFS detection, e.g.
- * to support off-channel scanning. A pattern detector has a list of channels
- * radar pulses have been reported for in the past.
- */
-struct channel_detector {
-	struct list_head head;
-	u16 freq;
-	struct pri_detector **detectors;
-};
-
-/* channel_detector_reset() - reset detector lines for a given channel */
-static void channel_detector_reset(struct dfs_pattern_detector *dpd,
-				   struct channel_detector *cd)
-{
-	u32 i;
-	if (cd == NULL)
-		return;
-	for (i = 0; i < dpd->num_radar_types; i++)
-		cd->detectors[i]->reset(cd->detectors[i], dpd->last_pulse_ts);
-}
-
-/* channel_detector_exit() - destructor */
-static void channel_detector_exit(struct dfs_pattern_detector *dpd,
-				  struct channel_detector *cd)
-{
-	u32 i;
-	if (cd == NULL)
-		return;
-	list_del(&cd->head);
-	for (i = 0; i < dpd->num_radar_types; i++) {
-		struct pri_detector *de = cd->detectors[i];
-		if (de != NULL)
-			de->exit(de);
-	}
-	kfree(cd->detectors);
-	kfree(cd);
-}
-
-static struct channel_detector *
-channel_detector_create(struct dfs_pattern_detector *dpd, u16 freq)
-{
-	u32 sz, i;
-	struct channel_detector *cd;
-
-	cd = kmalloc(sizeof(*cd), GFP_ATOMIC);
-	if (cd == NULL)
-		goto fail;
-
-	INIT_LIST_HEAD(&cd->head);
-	cd->freq = freq;
-	sz = sizeof(cd->detectors) * dpd->num_radar_types;
-	cd->detectors = kzalloc(sz, GFP_ATOMIC);
-	if (cd->detectors == NULL)
-		goto fail;
-
-	for (i = 0; i < dpd->num_radar_types; i++) {
-		const struct radar_detector_specs *rs = &dpd->radar_spec[i];
-		struct pri_detector *de = pri_detector_init(rs);
-		if (de == NULL)
-			goto fail;
-		cd->detectors[i] = de;
-	}
-	list_add(&cd->head, &dpd->channel_detectors);
-	return cd;
-
-fail:
-	ath_dbg(dpd->common, DFS,
-		"failed to allocate channel_detector for freq=%d\n", freq);
-	channel_detector_exit(dpd, cd);
-	return NULL;
-}
-
-/**
- * channel_detector_get() - get channel detector for given frequency
- * @param dpd instance pointer
- * @param freq frequency in MHz
- * @return pointer to channel detector on success, NULL otherwise
- *
- * Return existing channel detector for the given frequency or return a
- * newly create one.
- */
-static struct channel_detector *
-channel_detector_get(struct dfs_pattern_detector *dpd, u16 freq)
-{
-	struct channel_detector *cd;
-	list_for_each_entry(cd, &dpd->channel_detectors, head) {
-		if (cd->freq == freq)
-			return cd;
-	}
-	return channel_detector_create(dpd, freq);
-}
-
-/*
- * DFS Pattern Detector
- */
-
-/* dpd_reset(): reset all channel detectors */
-static void dpd_reset(struct dfs_pattern_detector *dpd)
-{
-	struct channel_detector *cd;
-	if (!list_empty(&dpd->channel_detectors))
-		list_for_each_entry(cd, &dpd->channel_detectors, head)
-			channel_detector_reset(dpd, cd);
-
-}
-static void dpd_exit(struct dfs_pattern_detector *dpd)
-{
-	struct channel_detector *cd, *cd0;
-	if (!list_empty(&dpd->channel_detectors))
-		list_for_each_entry_safe(cd, cd0, &dpd->channel_detectors, head)
-			channel_detector_exit(dpd, cd);
-	kfree(dpd);
-}
-
-static bool
-dpd_add_pulse(struct dfs_pattern_detector *dpd, struct pulse_event *event)
-{
-	u32 i;
-	struct channel_detector *cd;
-
-	/*
-	 * pulses received for a non-supported or un-initialized
-	 * domain are treated as detected radars for fail-safety
-	 */
-	if (dpd->region == NL80211_DFS_UNSET)
-		return true;
-
-	cd = channel_detector_get(dpd, event->freq);
-	if (cd == NULL)
-		return false;
-
-	dpd->last_pulse_ts = event->ts;
-	/* reset detector on time stamp wraparound, caused by TSF reset */
-	if (event->ts < dpd->last_pulse_ts)
-		dpd_reset(dpd);
-
-	/* do type individual pattern matching */
-	for (i = 0; i < dpd->num_radar_types; i++) {
-		struct pri_detector *pd = cd->detectors[i];
-		struct pri_sequence *ps = pd->add_pulse(pd, event);
-		if (ps != NULL) {
-			ath_dbg(dpd->common, DFS,
-				"DFS: radar found on freq=%d: id=%d, pri=%d, "
-				"count=%d, count_false=%d\n",
-				event->freq, pd->rs->type_id,
-				ps->pri, ps->count, ps->count_falses);
-			channel_detector_reset(dpd, cd);
-			return true;
-		}
-	}
-	return false;
-}
-
-static struct ath_dfs_pool_stats
-dpd_get_stats(struct dfs_pattern_detector *dpd)
-{
-	return global_dfs_pool_stats;
-}
-
-static bool dpd_set_domain(struct dfs_pattern_detector *dpd,
-			   enum nl80211_dfs_regions region)
-{
-	const struct radar_types *rt;
-	struct channel_detector *cd, *cd0;
-
-	if (dpd->region == region)
-		return true;
-
-	dpd->region = NL80211_DFS_UNSET;
-
-	rt = get_dfs_domain_radar_types(region);
-	if (rt == NULL)
-		return false;
-
-	/* delete all channel detectors for previous DFS domain */
-	if (!list_empty(&dpd->channel_detectors))
-		list_for_each_entry_safe(cd, cd0, &dpd->channel_detectors, head)
-			channel_detector_exit(dpd, cd);
-	dpd->radar_spec = rt->radar_types;
-	dpd->num_radar_types = rt->num_radar_types;
-
-	dpd->region = region;
-	return true;
-}
-
-static struct dfs_pattern_detector default_dpd = {
-	.exit		= dpd_exit,
-	.set_dfs_domain	= dpd_set_domain,
-	.add_pulse	= dpd_add_pulse,
-	.get_stats	= dpd_get_stats,
-	.region		= NL80211_DFS_UNSET,
-};
-
-struct dfs_pattern_detector *
-dfs_pattern_detector_init(struct ath_common *common,
-			  enum nl80211_dfs_regions region)
-{
-	struct dfs_pattern_detector *dpd;
-
-	if (!config_enabled(CONFIG_CFG80211_CERTIFICATION_ONUS))
-		return NULL;
-
-	dpd = kmalloc(sizeof(*dpd), GFP_KERNEL);
-	if (dpd == NULL)
-		return NULL;
-
-	*dpd = default_dpd;
-	INIT_LIST_HEAD(&dpd->channel_detectors);
-
-	dpd->common = common;
-	if (dpd->set_dfs_domain(dpd, region))
-		return dpd;
-
-	ath_dbg(common, DFS,"Could not set DFS domain to %d", region);
-	kfree(dpd);
-	return NULL;
-}
-EXPORT_SYMBOL(dfs_pattern_detector_init);
diff --git a/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h b/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h
deleted file mode 100644
index dde2652b787c..000000000000
--- a/drivers/net/wireless/ath/ath9k/dfs_pattern_detector.h
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * Copyright (c) 2012 Neratec Solutions AG
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef DFS_PATTERN_DETECTOR_H
-#define DFS_PATTERN_DETECTOR_H
-
-#include <linux/types.h>
-#include <linux/list.h>
-#include <linux/nl80211.h>
-
-/**
- * struct ath_dfs_pool_stats - DFS Statistics for global pools
- */
-struct ath_dfs_pool_stats {
-	u32 pool_reference;
-	u32 pulse_allocated;
-	u32 pulse_alloc_error;
-	u32 pulse_used;
-	u32 pseq_allocated;
-	u32 pseq_alloc_error;
-	u32 pseq_used;
-};
-
-/**
- * struct pulse_event - describing pulses reported by PHY
- * @ts: pulse time stamp in us
- * @freq: channel frequency in MHz
- * @width: pulse duration in us
- * @rssi: rssi of radar event
- */
-struct pulse_event {
-	u64 ts;
-	u16 freq;
-	u8 width;
-	u8 rssi;
-};
-
-/**
- * struct radar_detector_specs - detector specs for a radar pattern type
- * @type_id: pattern type, as defined by regulatory
- * @width_min: minimum radar pulse width in [us]
- * @width_max: maximum radar pulse width in [us]
- * @pri_min: minimum pulse repetition interval in [us] (including tolerance)
- * @pri_max: minimum pri in [us] (including tolerance)
- * @num_pri: maximum number of different pri for this type
- * @ppb: pulses per bursts for this type
- * @ppb_thresh: number of pulses required to trigger detection
- * @max_pri_tolerance: pulse time stamp tolerance on both sides [us]
- */
-struct radar_detector_specs {
-	u8 type_id;
-	u8 width_min;
-	u8 width_max;
-	u16 pri_min;
-	u16 pri_max;
-	u8 num_pri;
-	u8 ppb;
-	u8 ppb_thresh;
-	u8 max_pri_tolerance;
-};
-
-/**
- * struct dfs_pattern_detector - DFS pattern detector
- * @exit(): destructor
- * @set_dfs_domain(): set DFS domain, resets detector lines upon domain changes
- * @add_pulse(): add radar pulse to detector, returns true on detection
- * @region: active DFS region, NL80211_DFS_UNSET until set
- * @num_radar_types: number of different radar types
- * @last_pulse_ts: time stamp of last valid pulse in usecs
- * @radar_detector_specs: array of radar detection specs
- * @channel_detectors: list connecting channel_detector elements
- */
-struct dfs_pattern_detector {
-	void (*exit)(struct dfs_pattern_detector *dpd);
-	bool (*set_dfs_domain)(struct dfs_pattern_detector *dpd,
-			   enum nl80211_dfs_regions region);
-	bool (*add_pulse)(struct dfs_pattern_detector *dpd,
-			  struct pulse_event *pe);
-
-	struct ath_dfs_pool_stats (*get_stats)(struct dfs_pattern_detector *dpd);
-	enum nl80211_dfs_regions region;
-	u8 num_radar_types;
-	u64 last_pulse_ts;
-	/* needed for ath_dbg() */
-	struct ath_common *common;
-
-	const struct radar_detector_specs *radar_spec;
-	struct list_head channel_detectors;
-};
-
-/**
- * dfs_pattern_detector_init() - constructor for pattern detector class
- * @param region: DFS domain to be used, can be NL80211_DFS_UNSET at creation
- * @return instance pointer on success, NULL otherwise
- */
-extern struct dfs_pattern_detector *
-dfs_pattern_detector_init(struct ath_common *common,
-			  enum nl80211_dfs_regions region);
-#endif /* DFS_PATTERN_DETECTOR_H */
diff --git a/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c b/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c
deleted file mode 100644
index 17b5bf9fd6a1..000000000000
--- a/drivers/net/wireless/ath/ath9k/dfs_pri_detector.c
+++ /dev/null
@@ -1,429 +0,0 @@
-/*
- * Copyright (c) 2012 Neratec Solutions AG
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-
-#include "../ath.h"
-#include "dfs_pattern_detector.h"
-#include "dfs_pri_detector.h"
-
-struct ath_dfs_pool_stats global_dfs_pool_stats = {};
-
-#define DFS_POOL_STAT_INC(c) (global_dfs_pool_stats.c++)
-#define DFS_POOL_STAT_DEC(c) (global_dfs_pool_stats.c--)
-
-/**
- * struct pulse_elem - elements in pulse queue
- * @ts: time stamp in usecs
- */
-struct pulse_elem {
-	struct list_head head;
-	u64 ts;
-};
-
-/**
- * pde_get_multiple() - get number of multiples considering a given tolerance
- * @return factor if abs(val - factor*fraction) <= tolerance, 0 otherwise
- */
-static u32 pde_get_multiple(u32 val, u32 fraction, u32 tolerance)
-{
-	u32 remainder;
-	u32 factor;
-	u32 delta;
-
-	if (fraction == 0)
-		return 0;
-
-	delta = (val < fraction) ? (fraction - val) : (val - fraction);
-
-	if (delta <= tolerance)
-		/* val and fraction are within tolerance */
-		return 1;
-
-	factor = val / fraction;
-	remainder = val % fraction;
-	if (remainder > tolerance) {
-		/* no exact match */
-		if ((fraction - remainder) <= tolerance)
-			/* remainder is within tolerance */
-			factor++;
-		else
-			factor = 0;
-	}
-	return factor;
-}
-
-/**
- * DOC: Singleton Pulse and Sequence Pools
- *
- * Instances of pri_sequence and pulse_elem are kept in singleton pools to
- * reduce the number of dynamic allocations. They are shared between all
- * instances and grow up to the peak number of simultaneously used objects.
- *
- * Memory is freed after all references to the pools are released.
- */
-static u32 singleton_pool_references;
-static LIST_HEAD(pulse_pool);
-static LIST_HEAD(pseq_pool);
-static DEFINE_SPINLOCK(pool_lock);
-
-static void pool_register_ref(void)
-{
-	spin_lock_bh(&pool_lock);
-	singleton_pool_references++;
-	DFS_POOL_STAT_INC(pool_reference);
-	spin_unlock_bh(&pool_lock);
-}
-
-static void pool_deregister_ref(void)
-{
-	spin_lock_bh(&pool_lock);
-	singleton_pool_references--;
-	DFS_POOL_STAT_DEC(pool_reference);
-	if (singleton_pool_references == 0) {
-		/* free singleton pools with no references left */
-		struct pri_sequence *ps, *ps0;
-		struct pulse_elem *p, *p0;
-
-		list_for_each_entry_safe(p, p0, &pulse_pool, head) {
-			list_del(&p->head);
-			DFS_POOL_STAT_DEC(pulse_allocated);
-			kfree(p);
-		}
-		list_for_each_entry_safe(ps, ps0, &pseq_pool, head) {
-			list_del(&ps->head);
-			DFS_POOL_STAT_DEC(pseq_allocated);
-			kfree(ps);
-		}
-	}
-	spin_unlock_bh(&pool_lock);
-}
-
-static void pool_put_pulse_elem(struct pulse_elem *pe)
-{
-	spin_lock_bh(&pool_lock);
-	list_add(&pe->head, &pulse_pool);
-	DFS_POOL_STAT_DEC(pulse_used);
-	spin_unlock_bh(&pool_lock);
-}
-
-static void pool_put_pseq_elem(struct pri_sequence *pse)
-{
-	spin_lock_bh(&pool_lock);
-	list_add(&pse->head, &pseq_pool);
-	DFS_POOL_STAT_DEC(pseq_used);
-	spin_unlock_bh(&pool_lock);
-}
-
-static struct pri_sequence *pool_get_pseq_elem(void)
-{
-	struct pri_sequence *pse = NULL;
-	spin_lock_bh(&pool_lock);
-	if (!list_empty(&pseq_pool)) {
-		pse = list_first_entry(&pseq_pool, struct pri_sequence, head);
-		list_del(&pse->head);
-		DFS_POOL_STAT_INC(pseq_used);
-	}
-	spin_unlock_bh(&pool_lock);
-	return pse;
-}
-
-static struct pulse_elem *pool_get_pulse_elem(void)
-{
-	struct pulse_elem *pe = NULL;
-	spin_lock_bh(&pool_lock);
-	if (!list_empty(&pulse_pool)) {
-		pe = list_first_entry(&pulse_pool, struct pulse_elem, head);
-		list_del(&pe->head);
-		DFS_POOL_STAT_INC(pulse_used);
-	}
-	spin_unlock_bh(&pool_lock);
-	return pe;
-}
-
-static struct pulse_elem *pulse_queue_get_tail(struct pri_detector *pde)
-{
-	struct list_head *l = &pde->pulses;
-	if (list_empty(l))
-		return NULL;
-	return list_entry(l->prev, struct pulse_elem, head);
-}
-
-static bool pulse_queue_dequeue(struct pri_detector *pde)
-{
-	struct pulse_elem *p = pulse_queue_get_tail(pde);
-	if (p != NULL) {
-		list_del_init(&p->head);
-		pde->count--;
-		/* give it back to pool */
-		pool_put_pulse_elem(p);
-	}
-	return (pde->count > 0);
-}
-
-/* remove pulses older than window */
-static void pulse_queue_check_window(struct pri_detector *pde)
-{
-	u64 min_valid_ts;
-	struct pulse_elem *p;
-
-	/* there is no delta time with less than 2 pulses */
-	if (pde->count < 2)
-		return;
-
-	if (pde->last_ts <= pde->window_size)
-		return;
-
-	min_valid_ts = pde->last_ts - pde->window_size;
-	while ((p = pulse_queue_get_tail(pde)) != NULL) {
-		if (p->ts >= min_valid_ts)
-			return;
-		pulse_queue_dequeue(pde);
-	}
-}
-
-static bool pulse_queue_enqueue(struct pri_detector *pde, u64 ts)
-{
-	struct pulse_elem *p = pool_get_pulse_elem();
-	if (p == NULL) {
-		p = kmalloc(sizeof(*p), GFP_ATOMIC);
-		if (p == NULL) {
-			DFS_POOL_STAT_INC(pulse_alloc_error);
-			return false;
-		}
-		DFS_POOL_STAT_INC(pulse_allocated);
-		DFS_POOL_STAT_INC(pulse_used);
-	}
-	INIT_LIST_HEAD(&p->head);
-	p->ts = ts;
-	list_add(&p->head, &pde->pulses);
-	pde->count++;
-	pde->last_ts = ts;
-	pulse_queue_check_window(pde);
-	if (pde->count >= pde->max_count)
-		pulse_queue_dequeue(pde);
-	return true;
-}
-
-static bool pseq_handler_create_sequences(struct pri_detector *pde,
-					  u64 ts, u32 min_count)
-{
-	struct pulse_elem *p;
-	list_for_each_entry(p, &pde->pulses, head) {
-		struct pri_sequence ps, *new_ps;
-		struct pulse_elem *p2;
-		u32 tmp_false_count;
-		u64 min_valid_ts;
-		u32 delta_ts = ts - p->ts;
-
-		if (delta_ts < pde->rs->pri_min)
-			/* ignore too small pri */
-			continue;
-
-		if (delta_ts > pde->rs->pri_max)
-			/* stop on too large pri (sorted list) */
-			break;
-
-		/* build a new sequence with new potential pri */
-		ps.count = 2;
-		ps.count_falses = 0;
-		ps.first_ts = p->ts;
-		ps.last_ts = ts;
-		ps.pri = ts - p->ts;
-		ps.dur = ps.pri * (pde->rs->ppb - 1)
-				+ 2 * pde->rs->max_pri_tolerance;
-
-		p2 = p;
-		tmp_false_count = 0;
-		min_valid_ts = ts - ps.dur;
-		/* check which past pulses are candidates for new sequence */
-		list_for_each_entry_continue(p2, &pde->pulses, head) {
-			u32 factor;
-			if (p2->ts < min_valid_ts)
-				/* stop on crossing window border */
-				break;
-			/* check if pulse match (multi)PRI */
-			factor = pde_get_multiple(ps.last_ts - p2->ts, ps.pri,
-						  pde->rs->max_pri_tolerance);
-			if (factor > 0) {
-				ps.count++;
-				ps.first_ts = p2->ts;
-				/*
-				 * on match, add the intermediate falses
-				 * and reset counter
-				 */
-				ps.count_falses += tmp_false_count;
-				tmp_false_count = 0;
-			} else {
-				/* this is a potential false one */
-				tmp_false_count++;
-			}
-		}
-		if (ps.count < min_count)
-			/* did not reach minimum count, drop sequence */
-			continue;
-
-		/* this is a valid one, add it */
-		ps.deadline_ts = ps.first_ts + ps.dur;
-		new_ps = pool_get_pseq_elem();
-		if (new_ps == NULL) {
-			new_ps = kmalloc(sizeof(*new_ps), GFP_ATOMIC);
-			if (new_ps == NULL) {
-				DFS_POOL_STAT_INC(pseq_alloc_error);
-				return false;
-			}
-			DFS_POOL_STAT_INC(pseq_allocated);
-			DFS_POOL_STAT_INC(pseq_used);
-		}
-		memcpy(new_ps, &ps, sizeof(ps));
-		INIT_LIST_HEAD(&new_ps->head);
-		list_add(&new_ps->head, &pde->sequences);
-	}
-	return true;
-}
-
-/* check new ts and add to all matching existing sequences */
-static u32
-pseq_handler_add_to_existing_seqs(struct pri_detector *pde, u64 ts)
-{
-	u32 max_count = 0;
-	struct pri_sequence *ps, *ps2;
-	list_for_each_entry_safe(ps, ps2, &pde->sequences, head) {
-		u32 delta_ts;
-		u32 factor;
-
-		/* first ensure that sequence is within window */
-		if (ts > ps->deadline_ts) {
-			list_del_init(&ps->head);
-			pool_put_pseq_elem(ps);
-			continue;
-		}
-
-		delta_ts = ts - ps->last_ts;
-		factor = pde_get_multiple(delta_ts, ps->pri,
-					  pde->rs->max_pri_tolerance);
-		if (factor > 0) {
-			ps->last_ts = ts;
-			ps->count++;
-
-			if (max_count < ps->count)
-				max_count = ps->count;
-		} else {
-			ps->count_falses++;
-		}
-	}
-	return max_count;
-}
-
-static struct pri_sequence *
-pseq_handler_check_detection(struct pri_detector *pde)
-{
-	struct pri_sequence *ps;
-
-	if (list_empty(&pde->sequences))
-		return NULL;
-
-	list_for_each_entry(ps, &pde->sequences, head) {
-		/*
-		 * we assume to have enough matching confidence if we
-		 * 1) have enough pulses
-		 * 2) have more matching than false pulses
-		 */
-		if ((ps->count >= pde->rs->ppb_thresh) &&
-		    (ps->count * pde->rs->num_pri >= ps->count_falses))
-			return ps;
-	}
-	return NULL;
-}
-
-
-/* free pulse queue and sequences list and give objects back to pools */
-static void pri_detector_reset(struct pri_detector *pde, u64 ts)
-{
-	struct pri_sequence *ps, *ps0;
-	struct pulse_elem *p, *p0;
-	list_for_each_entry_safe(ps, ps0, &pde->sequences, head) {
-		list_del_init(&ps->head);
-		pool_put_pseq_elem(ps);
-	}
-	list_for_each_entry_safe(p, p0, &pde->pulses, head) {
-		list_del_init(&p->head);
-		pool_put_pulse_elem(p);
-	}
-	pde->count = 0;
-	pde->last_ts = ts;
-}
-
-static void pri_detector_exit(struct pri_detector *de)
-{
-	pri_detector_reset(de, 0);
-	pool_deregister_ref();
-	kfree(de);
-}
-
-static struct pri_sequence *pri_detector_add_pulse(struct pri_detector *de,
-						   struct pulse_event *event)
-{
-	u32 max_updated_seq;
-	struct pri_sequence *ps;
-	u64 ts = event->ts;
-	const struct radar_detector_specs *rs = de->rs;
-
-	/* ignore pulses not within width range */
-	if ((rs->width_min > event->width) || (rs->width_max < event->width))
-		return NULL;
-
-	if ((ts - de->last_ts) < rs->max_pri_tolerance)
-		/* if delta to last pulse is too short, don't use this pulse */
-		return NULL;
-	de->last_ts = ts;
-
-	max_updated_seq = pseq_handler_add_to_existing_seqs(de, ts);
-
-	if (!pseq_handler_create_sequences(de, ts, max_updated_seq)) {
-		pri_detector_reset(de, ts);
-		return NULL;
-	}
-
-	ps = pseq_handler_check_detection(de);
-
-	if (ps == NULL)
-		pulse_queue_enqueue(de, ts);
-
-	return ps;
-}
-
-struct pri_detector *pri_detector_init(const struct radar_detector_specs *rs)
-{
-	struct pri_detector *de;
-
-	de = kzalloc(sizeof(*de), GFP_ATOMIC);
-	if (de == NULL)
-		return NULL;
-	de->exit = pri_detector_exit;
-	de->add_pulse = pri_detector_add_pulse;
-	de->reset = pri_detector_reset;
-
-	INIT_LIST_HEAD(&de->sequences);
-	INIT_LIST_HEAD(&de->pulses);
-	de->window_size = rs->pri_max * rs->ppb * rs->num_pri;
-	de->max_count = rs->ppb * 2;
-	de->rs = rs;
-
-	pool_register_ref();
-	return de;
-}
diff --git a/drivers/net/wireless/ath/ath9k/dfs_pri_detector.h b/drivers/net/wireless/ath/ath9k/dfs_pri_detector.h
deleted file mode 100644
index 79f0fff4d1e6..000000000000
--- a/drivers/net/wireless/ath/ath9k/dfs_pri_detector.h
+++ /dev/null
@@ -1,77 +0,0 @@
-/*
- * Copyright (c) 2012 Neratec Solutions AG
- *
- * Permission to use, copy, modify, and/or distribute this software for any
- * purpose with or without fee is hereby granted, provided that the above
- * copyright notice and this permission notice appear in all copies.
- *
- * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
- * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
- * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
- * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- */
-
-#ifndef DFS_PRI_DETECTOR_H
-#define DFS_PRI_DETECTOR_H
-
-#include <linux/list.h>
-
-extern struct ath_dfs_pool_stats global_dfs_pool_stats;
-
-/**
- * struct pri_sequence - sequence of pulses matching one PRI
- * @head: list_head
- * @pri: pulse repetition interval (PRI) in usecs
- * @dur: duration of sequence in usecs
- * @count: number of pulses in this sequence
- * @count_falses: number of not matching pulses in this sequence
- * @first_ts: time stamp of first pulse in usecs
- * @last_ts: time stamp of last pulse in usecs
- * @deadline_ts: deadline when this sequence becomes invalid (first_ts + dur)
- */
-struct pri_sequence {
-	struct list_head head;
-	u32 pri;
-	u32 dur;
-	u32 count;
-	u32 count_falses;
-	u64 first_ts;
-	u64 last_ts;
-	u64 deadline_ts;
-};
-
-/**
- * struct pri_detector - PRI detector element for a dedicated radar type
- * @exit(): destructor
- * @add_pulse(): add pulse event, returns pri_sequence if pattern was detected
- * @reset(): clear states and reset to given time stamp
- * @rs: detector specs for this detector element
- * @last_ts: last pulse time stamp considered for this element in usecs
- * @sequences: list_head holding potential pulse sequences
- * @pulses: list connecting pulse_elem objects
- * @count: number of pulses in queue
- * @max_count: maximum number of pulses to be queued
- * @window_size: window size back from newest pulse time stamp in usecs
- */
-struct pri_detector {
-	void (*exit)     (struct pri_detector *de);
-	struct pri_sequence *
-	     (*add_pulse)(struct pri_detector *de, struct pulse_event *e);
-	void (*reset)    (struct pri_detector *de, u64 ts);
-
-/* private: internal use only */
-	const struct radar_detector_specs *rs;
-	u64 last_ts;
-	struct list_head sequences;
-	struct list_head pulses;
-	u32 count;
-	u32 max_count;
-	u32 window_size;
-};
-
-struct pri_detector *pri_detector_init(const struct radar_detector_specs *rs);
-
-#endif /* DFS_PRI_DETECTOR_H */
diff --git a/drivers/net/wireless/ath/dfs_pattern_detector.c b/drivers/net/wireless/ath/dfs_pattern_detector.c
new file mode 100644
index 000000000000..a1a69c5db409
--- /dev/null
+++ b/drivers/net/wireless/ath/dfs_pattern_detector.c
@@ -0,0 +1,320 @@
+/*
+ * Copyright (c) 2012 Neratec Solutions AG
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/slab.h>
+#include <linux/export.h>
+
+#include "dfs_pattern_detector.h"
+#include "dfs_pri_detector.h"
+#include "ath.h"
+
+/*
+ * tolerated deviation of radar time stamp in usecs on both sides
+ * TODO: this might need to be HW-dependent
+ */
+#define PRI_TOLERANCE	16
+
+/**
+ * struct radar_types - contains array of patterns defined for one DFS domain
+ * @domain: DFS regulatory domain
+ * @num_radar_types: number of radar types to follow
+ * @radar_types: radar types array
+ */
+struct radar_types {
+	enum nl80211_dfs_regions region;
+	u32 num_radar_types;
+	const struct radar_detector_specs *radar_types;
+};
+
+/* percentage on ppb threshold to trigger detection */
+#define MIN_PPB_THRESH	50
+#define PPB_THRESH(PPB) ((PPB * MIN_PPB_THRESH + 50) / 100)
+#define PRF2PRI(PRF) ((1000000 + PRF / 2) / PRF)
+/* percentage of pulse width tolerance */
+#define WIDTH_TOLERANCE 5
+#define WIDTH_LOWER(X) ((X*(100-WIDTH_TOLERANCE)+50)/100)
+#define WIDTH_UPPER(X) ((X*(100+WIDTH_TOLERANCE)+50)/100)
+
+#define ETSI_PATTERN(ID, WMIN, WMAX, PMIN, PMAX, PRF, PPB)	\
+{								\
+	ID, WIDTH_LOWER(WMIN), WIDTH_UPPER(WMAX),		\
+	(PRF2PRI(PMAX) - PRI_TOLERANCE),			\
+	(PRF2PRI(PMIN) * PRF + PRI_TOLERANCE), PRF, PPB * PRF,	\
+	PPB_THRESH(PPB), PRI_TOLERANCE,				\
+}
+
+/* radar types as defined by ETSI EN-301-893 v1.5.1 */
+static const struct radar_detector_specs etsi_radar_ref_types_v15[] = {
+	ETSI_PATTERN(0,  0,  1,  700,  700, 1, 18),
+	ETSI_PATTERN(1,  0,  5,  200, 1000, 1, 10),
+	ETSI_PATTERN(2,  0, 15,  200, 1600, 1, 15),
+	ETSI_PATTERN(3,  0, 15, 2300, 4000, 1, 25),
+	ETSI_PATTERN(4, 20, 30, 2000, 4000, 1, 20),
+	ETSI_PATTERN(5,  0,  2,  300,  400, 3, 10),
+	ETSI_PATTERN(6,  0,  2,  400, 1200, 3, 15),
+};
+
+static const struct radar_types etsi_radar_types_v15 = {
+	.region			= NL80211_DFS_ETSI,
+	.num_radar_types	= ARRAY_SIZE(etsi_radar_ref_types_v15),
+	.radar_types		= etsi_radar_ref_types_v15,
+};
+
+/* for now, we support ETSI radar types, FCC and JP are TODO */
+static const struct radar_types *dfs_domains[] = {
+	&etsi_radar_types_v15,
+};
+
+/**
+ * get_dfs_domain_radar_types() - get radar types for a given DFS domain
+ * @param domain DFS domain
+ * @return radar_types ptr on success, NULL if DFS domain is not supported
+ */
+static const struct radar_types *
+get_dfs_domain_radar_types(enum nl80211_dfs_regions region)
+{
+	u32 i;
+	for (i = 0; i < ARRAY_SIZE(dfs_domains); i++) {
+		if (dfs_domains[i]->region == region)
+			return dfs_domains[i];
+	}
+	return NULL;
+}
+
+/**
+ * struct channel_detector - detector elements for a DFS channel
+ * @head: list_head
+ * @freq: frequency for this channel detector in MHz
+ * @detectors: array of dynamically created detector elements for this freq
+ *
+ * Channel detectors are required to provide multi-channel DFS detection, e.g.
+ * to support off-channel scanning. A pattern detector has a list of channels
+ * radar pulses have been reported for in the past.
+ */
+struct channel_detector {
+	struct list_head head;
+	u16 freq;
+	struct pri_detector **detectors;
+};
+
+/* channel_detector_reset() - reset detector lines for a given channel */
+static void channel_detector_reset(struct dfs_pattern_detector *dpd,
+				   struct channel_detector *cd)
+{
+	u32 i;
+	if (cd == NULL)
+		return;
+	for (i = 0; i < dpd->num_radar_types; i++)
+		cd->detectors[i]->reset(cd->detectors[i], dpd->last_pulse_ts);
+}
+
+/* channel_detector_exit() - destructor */
+static void channel_detector_exit(struct dfs_pattern_detector *dpd,
+				  struct channel_detector *cd)
+{
+	u32 i;
+	if (cd == NULL)
+		return;
+	list_del(&cd->head);
+	for (i = 0; i < dpd->num_radar_types; i++) {
+		struct pri_detector *de = cd->detectors[i];
+		if (de != NULL)
+			de->exit(de);
+	}
+	kfree(cd->detectors);
+	kfree(cd);
+}
+
+static struct channel_detector *
+channel_detector_create(struct dfs_pattern_detector *dpd, u16 freq)
+{
+	u32 sz, i;
+	struct channel_detector *cd;
+
+	cd = kmalloc(sizeof(*cd), GFP_ATOMIC);
+	if (cd == NULL)
+		goto fail;
+
+	INIT_LIST_HEAD(&cd->head);
+	cd->freq = freq;
+	sz = sizeof(cd->detectors) * dpd->num_radar_types;
+	cd->detectors = kzalloc(sz, GFP_ATOMIC);
+	if (cd->detectors == NULL)
+		goto fail;
+
+	for (i = 0; i < dpd->num_radar_types; i++) {
+		const struct radar_detector_specs *rs = &dpd->radar_spec[i];
+		struct pri_detector *de = pri_detector_init(rs);
+		if (de == NULL)
+			goto fail;
+		cd->detectors[i] = de;
+	}
+	list_add(&cd->head, &dpd->channel_detectors);
+	return cd;
+
+fail:
+	ath_dbg(dpd->common, DFS,
+		"failed to allocate channel_detector for freq=%d\n", freq);
+	channel_detector_exit(dpd, cd);
+	return NULL;
+}
+
+/**
+ * channel_detector_get() - get channel detector for given frequency
+ * @param dpd instance pointer
+ * @param freq frequency in MHz
+ * @return pointer to channel detector on success, NULL otherwise
+ *
+ * Return existing channel detector for the given frequency or return a
+ * newly create one.
+ */
+static struct channel_detector *
+channel_detector_get(struct dfs_pattern_detector *dpd, u16 freq)
+{
+	struct channel_detector *cd;
+	list_for_each_entry(cd, &dpd->channel_detectors, head) {
+		if (cd->freq == freq)
+			return cd;
+	}
+	return channel_detector_create(dpd, freq);
+}
+
+/*
+ * DFS Pattern Detector
+ */
+
+/* dpd_reset(): reset all channel detectors */
+static void dpd_reset(struct dfs_pattern_detector *dpd)
+{
+	struct channel_detector *cd;
+	if (!list_empty(&dpd->channel_detectors))
+		list_for_each_entry(cd, &dpd->channel_detectors, head)
+			channel_detector_reset(dpd, cd);
+
+}
+static void dpd_exit(struct dfs_pattern_detector *dpd)
+{
+	struct channel_detector *cd, *cd0;
+	if (!list_empty(&dpd->channel_detectors))
+		list_for_each_entry_safe(cd, cd0, &dpd->channel_detectors, head)
+			channel_detector_exit(dpd, cd);
+	kfree(dpd);
+}
+
+static bool
+dpd_add_pulse(struct dfs_pattern_detector *dpd, struct pulse_event *event)
+{
+	u32 i;
+	struct channel_detector *cd;
+
+	/*
+	 * pulses received for a non-supported or un-initialized
+	 * domain are treated as detected radars for fail-safety
+	 */
+	if (dpd->region == NL80211_DFS_UNSET)
+		return true;
+
+	cd = channel_detector_get(dpd, event->freq);
+	if (cd == NULL)
+		return false;
+
+	dpd->last_pulse_ts = event->ts;
+	/* reset detector on time stamp wraparound, caused by TSF reset */
+	if (event->ts < dpd->last_pulse_ts)
+		dpd_reset(dpd);
+
+	/* do type individual pattern matching */
+	for (i = 0; i < dpd->num_radar_types; i++) {
+		struct pri_detector *pd = cd->detectors[i];
+		struct pri_sequence *ps = pd->add_pulse(pd, event);
+		if (ps != NULL) {
+			ath_dbg(dpd->common, DFS,
+				"DFS: radar found on freq=%d: id=%d, pri=%d, "
+				"count=%d, count_false=%d\n",
+				event->freq, pd->rs->type_id,
+				ps->pri, ps->count, ps->count_falses);
+			channel_detector_reset(dpd, cd);
+			return true;
+		}
+	}
+	return false;
+}
+
+static struct ath_dfs_pool_stats
+dpd_get_stats(struct dfs_pattern_detector *dpd)
+{
+	return global_dfs_pool_stats;
+}
+
+static bool dpd_set_domain(struct dfs_pattern_detector *dpd,
+			   enum nl80211_dfs_regions region)
+{
+	const struct radar_types *rt;
+	struct channel_detector *cd, *cd0;
+
+	if (dpd->region == region)
+		return true;
+
+	dpd->region = NL80211_DFS_UNSET;
+
+	rt = get_dfs_domain_radar_types(region);
+	if (rt == NULL)
+		return false;
+
+	/* delete all channel detectors for previous DFS domain */
+	if (!list_empty(&dpd->channel_detectors))
+		list_for_each_entry_safe(cd, cd0, &dpd->channel_detectors, head)
+			channel_detector_exit(dpd, cd);
+	dpd->radar_spec = rt->radar_types;
+	dpd->num_radar_types = rt->num_radar_types;
+
+	dpd->region = region;
+	return true;
+}
+
+static struct dfs_pattern_detector default_dpd = {
+	.exit		= dpd_exit,
+	.set_dfs_domain	= dpd_set_domain,
+	.add_pulse	= dpd_add_pulse,
+	.get_stats	= dpd_get_stats,
+	.region		= NL80211_DFS_UNSET,
+};
+
+struct dfs_pattern_detector *
+dfs_pattern_detector_init(struct ath_common *common,
+			  enum nl80211_dfs_regions region)
+{
+	struct dfs_pattern_detector *dpd;
+
+	if (!config_enabled(CONFIG_CFG80211_CERTIFICATION_ONUS))
+		return NULL;
+
+	dpd = kmalloc(sizeof(*dpd), GFP_KERNEL);
+	if (dpd == NULL)
+		return NULL;
+
+	*dpd = default_dpd;
+	INIT_LIST_HEAD(&dpd->channel_detectors);
+
+	dpd->common = common;
+	if (dpd->set_dfs_domain(dpd, region))
+		return dpd;
+
+	ath_dbg(common, DFS,"Could not set DFS domain to %d", region);
+	kfree(dpd);
+	return NULL;
+}
+EXPORT_SYMBOL(dfs_pattern_detector_init);
diff --git a/drivers/net/wireless/ath/dfs_pattern_detector.h b/drivers/net/wireless/ath/dfs_pattern_detector.h
new file mode 100644
index 000000000000..dde2652b787c
--- /dev/null
+++ b/drivers/net/wireless/ath/dfs_pattern_detector.h
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2012 Neratec Solutions AG
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DFS_PATTERN_DETECTOR_H
+#define DFS_PATTERN_DETECTOR_H
+
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/nl80211.h>
+
+/**
+ * struct ath_dfs_pool_stats - DFS Statistics for global pools
+ */
+struct ath_dfs_pool_stats {
+	u32 pool_reference;
+	u32 pulse_allocated;
+	u32 pulse_alloc_error;
+	u32 pulse_used;
+	u32 pseq_allocated;
+	u32 pseq_alloc_error;
+	u32 pseq_used;
+};
+
+/**
+ * struct pulse_event - describing pulses reported by PHY
+ * @ts: pulse time stamp in us
+ * @freq: channel frequency in MHz
+ * @width: pulse duration in us
+ * @rssi: rssi of radar event
+ */
+struct pulse_event {
+	u64 ts;
+	u16 freq;
+	u8 width;
+	u8 rssi;
+};
+
+/**
+ * struct radar_detector_specs - detector specs for a radar pattern type
+ * @type_id: pattern type, as defined by regulatory
+ * @width_min: minimum radar pulse width in [us]
+ * @width_max: maximum radar pulse width in [us]
+ * @pri_min: minimum pulse repetition interval in [us] (including tolerance)
+ * @pri_max: minimum pri in [us] (including tolerance)
+ * @num_pri: maximum number of different pri for this type
+ * @ppb: pulses per bursts for this type
+ * @ppb_thresh: number of pulses required to trigger detection
+ * @max_pri_tolerance: pulse time stamp tolerance on both sides [us]
+ */
+struct radar_detector_specs {
+	u8 type_id;
+	u8 width_min;
+	u8 width_max;
+	u16 pri_min;
+	u16 pri_max;
+	u8 num_pri;
+	u8 ppb;
+	u8 ppb_thresh;
+	u8 max_pri_tolerance;
+};
+
+/**
+ * struct dfs_pattern_detector - DFS pattern detector
+ * @exit(): destructor
+ * @set_dfs_domain(): set DFS domain, resets detector lines upon domain changes
+ * @add_pulse(): add radar pulse to detector, returns true on detection
+ * @region: active DFS region, NL80211_DFS_UNSET until set
+ * @num_radar_types: number of different radar types
+ * @last_pulse_ts: time stamp of last valid pulse in usecs
+ * @radar_detector_specs: array of radar detection specs
+ * @channel_detectors: list connecting channel_detector elements
+ */
+struct dfs_pattern_detector {
+	void (*exit)(struct dfs_pattern_detector *dpd);
+	bool (*set_dfs_domain)(struct dfs_pattern_detector *dpd,
+			   enum nl80211_dfs_regions region);
+	bool (*add_pulse)(struct dfs_pattern_detector *dpd,
+			  struct pulse_event *pe);
+
+	struct ath_dfs_pool_stats (*get_stats)(struct dfs_pattern_detector *dpd);
+	enum nl80211_dfs_regions region;
+	u8 num_radar_types;
+	u64 last_pulse_ts;
+	/* needed for ath_dbg() */
+	struct ath_common *common;
+
+	const struct radar_detector_specs *radar_spec;
+	struct list_head channel_detectors;
+};
+
+/**
+ * dfs_pattern_detector_init() - constructor for pattern detector class
+ * @param region: DFS domain to be used, can be NL80211_DFS_UNSET at creation
+ * @return instance pointer on success, NULL otherwise
+ */
+extern struct dfs_pattern_detector *
+dfs_pattern_detector_init(struct ath_common *common,
+			  enum nl80211_dfs_regions region);
+#endif /* DFS_PATTERN_DETECTOR_H */
diff --git a/drivers/net/wireless/ath/dfs_pri_detector.c b/drivers/net/wireless/ath/dfs_pri_detector.c
new file mode 100644
index 000000000000..43b608178884
--- /dev/null
+++ b/drivers/net/wireless/ath/dfs_pri_detector.c
@@ -0,0 +1,429 @@
+/*
+ * Copyright (c) 2012 Neratec Solutions AG
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+
+#include "ath.h"
+#include "dfs_pattern_detector.h"
+#include "dfs_pri_detector.h"
+
+struct ath_dfs_pool_stats global_dfs_pool_stats = {};
+
+#define DFS_POOL_STAT_INC(c) (global_dfs_pool_stats.c++)
+#define DFS_POOL_STAT_DEC(c) (global_dfs_pool_stats.c--)
+
+/**
+ * struct pulse_elem - elements in pulse queue
+ * @ts: time stamp in usecs
+ */
+struct pulse_elem {
+	struct list_head head;
+	u64 ts;
+};
+
+/**
+ * pde_get_multiple() - get number of multiples considering a given tolerance
+ * @return factor if abs(val - factor*fraction) <= tolerance, 0 otherwise
+ */
+static u32 pde_get_multiple(u32 val, u32 fraction, u32 tolerance)
+{
+	u32 remainder;
+	u32 factor;
+	u32 delta;
+
+	if (fraction == 0)
+		return 0;
+
+	delta = (val < fraction) ? (fraction - val) : (val - fraction);
+
+	if (delta <= tolerance)
+		/* val and fraction are within tolerance */
+		return 1;
+
+	factor = val / fraction;
+	remainder = val % fraction;
+	if (remainder > tolerance) {
+		/* no exact match */
+		if ((fraction - remainder) <= tolerance)
+			/* remainder is within tolerance */
+			factor++;
+		else
+			factor = 0;
+	}
+	return factor;
+}
+
+/**
+ * DOC: Singleton Pulse and Sequence Pools
+ *
+ * Instances of pri_sequence and pulse_elem are kept in singleton pools to
+ * reduce the number of dynamic allocations. They are shared between all
+ * instances and grow up to the peak number of simultaneously used objects.
+ *
+ * Memory is freed after all references to the pools are released.
+ */
+static u32 singleton_pool_references;
+static LIST_HEAD(pulse_pool);
+static LIST_HEAD(pseq_pool);
+static DEFINE_SPINLOCK(pool_lock);
+
+static void pool_register_ref(void)
+{
+	spin_lock_bh(&pool_lock);
+	singleton_pool_references++;
+	DFS_POOL_STAT_INC(pool_reference);
+	spin_unlock_bh(&pool_lock);
+}
+
+static void pool_deregister_ref(void)
+{
+	spin_lock_bh(&pool_lock);
+	singleton_pool_references--;
+	DFS_POOL_STAT_DEC(pool_reference);
+	if (singleton_pool_references == 0) {
+		/* free singleton pools with no references left */
+		struct pri_sequence *ps, *ps0;
+		struct pulse_elem *p, *p0;
+
+		list_for_each_entry_safe(p, p0, &pulse_pool, head) {
+			list_del(&p->head);
+			DFS_POOL_STAT_DEC(pulse_allocated);
+			kfree(p);
+		}
+		list_for_each_entry_safe(ps, ps0, &pseq_pool, head) {
+			list_del(&ps->head);
+			DFS_POOL_STAT_DEC(pseq_allocated);
+			kfree(ps);
+		}
+	}
+	spin_unlock_bh(&pool_lock);
+}
+
+static void pool_put_pulse_elem(struct pulse_elem *pe)
+{
+	spin_lock_bh(&pool_lock);
+	list_add(&pe->head, &pulse_pool);
+	DFS_POOL_STAT_DEC(pulse_used);
+	spin_unlock_bh(&pool_lock);
+}
+
+static void pool_put_pseq_elem(struct pri_sequence *pse)
+{
+	spin_lock_bh(&pool_lock);
+	list_add(&pse->head, &pseq_pool);
+	DFS_POOL_STAT_DEC(pseq_used);
+	spin_unlock_bh(&pool_lock);
+}
+
+static struct pri_sequence *pool_get_pseq_elem(void)
+{
+	struct pri_sequence *pse = NULL;
+	spin_lock_bh(&pool_lock);
+	if (!list_empty(&pseq_pool)) {
+		pse = list_first_entry(&pseq_pool, struct pri_sequence, head);
+		list_del(&pse->head);
+		DFS_POOL_STAT_INC(pseq_used);
+	}
+	spin_unlock_bh(&pool_lock);
+	return pse;
+}
+
+static struct pulse_elem *pool_get_pulse_elem(void)
+{
+	struct pulse_elem *pe = NULL;
+	spin_lock_bh(&pool_lock);
+	if (!list_empty(&pulse_pool)) {
+		pe = list_first_entry(&pulse_pool, struct pulse_elem, head);
+		list_del(&pe->head);
+		DFS_POOL_STAT_INC(pulse_used);
+	}
+	spin_unlock_bh(&pool_lock);
+	return pe;
+}
+
+static struct pulse_elem *pulse_queue_get_tail(struct pri_detector *pde)
+{
+	struct list_head *l = &pde->pulses;
+	if (list_empty(l))
+		return NULL;
+	return list_entry(l->prev, struct pulse_elem, head);
+}
+
+static bool pulse_queue_dequeue(struct pri_detector *pde)
+{
+	struct pulse_elem *p = pulse_queue_get_tail(pde);
+	if (p != NULL) {
+		list_del_init(&p->head);
+		pde->count--;
+		/* give it back to pool */
+		pool_put_pulse_elem(p);
+	}
+	return (pde->count > 0);
+}
+
+/* remove pulses older than window */
+static void pulse_queue_check_window(struct pri_detector *pde)
+{
+	u64 min_valid_ts;
+	struct pulse_elem *p;
+
+	/* there is no delta time with less than 2 pulses */
+	if (pde->count < 2)
+		return;
+
+	if (pde->last_ts <= pde->window_size)
+		return;
+
+	min_valid_ts = pde->last_ts - pde->window_size;
+	while ((p = pulse_queue_get_tail(pde)) != NULL) {
+		if (p->ts >= min_valid_ts)
+			return;
+		pulse_queue_dequeue(pde);
+	}
+}
+
+static bool pulse_queue_enqueue(struct pri_detector *pde, u64 ts)
+{
+	struct pulse_elem *p = pool_get_pulse_elem();
+	if (p == NULL) {
+		p = kmalloc(sizeof(*p), GFP_ATOMIC);
+		if (p == NULL) {
+			DFS_POOL_STAT_INC(pulse_alloc_error);
+			return false;
+		}
+		DFS_POOL_STAT_INC(pulse_allocated);
+		DFS_POOL_STAT_INC(pulse_used);
+	}
+	INIT_LIST_HEAD(&p->head);
+	p->ts = ts;
+	list_add(&p->head, &pde->pulses);
+	pde->count++;
+	pde->last_ts = ts;
+	pulse_queue_check_window(pde);
+	if (pde->count >= pde->max_count)
+		pulse_queue_dequeue(pde);
+	return true;
+}
+
+static bool pseq_handler_create_sequences(struct pri_detector *pde,
+					  u64 ts, u32 min_count)
+{
+	struct pulse_elem *p;
+	list_for_each_entry(p, &pde->pulses, head) {
+		struct pri_sequence ps, *new_ps;
+		struct pulse_elem *p2;
+		u32 tmp_false_count;
+		u64 min_valid_ts;
+		u32 delta_ts = ts - p->ts;
+
+		if (delta_ts < pde->rs->pri_min)
+			/* ignore too small pri */
+			continue;
+
+		if (delta_ts > pde->rs->pri_max)
+			/* stop on too large pri (sorted list) */
+			break;
+
+		/* build a new sequence with new potential pri */
+		ps.count = 2;
+		ps.count_falses = 0;
+		ps.first_ts = p->ts;
+		ps.last_ts = ts;
+		ps.pri = ts - p->ts;
+		ps.dur = ps.pri * (pde->rs->ppb - 1)
+				+ 2 * pde->rs->max_pri_tolerance;
+
+		p2 = p;
+		tmp_false_count = 0;
+		min_valid_ts = ts - ps.dur;
+		/* check which past pulses are candidates for new sequence */
+		list_for_each_entry_continue(p2, &pde->pulses, head) {
+			u32 factor;
+			if (p2->ts < min_valid_ts)
+				/* stop on crossing window border */
+				break;
+			/* check if pulse match (multi)PRI */
+			factor = pde_get_multiple(ps.last_ts - p2->ts, ps.pri,
+						  pde->rs->max_pri_tolerance);
+			if (factor > 0) {
+				ps.count++;
+				ps.first_ts = p2->ts;
+				/*
+				 * on match, add the intermediate falses
+				 * and reset counter
+				 */
+				ps.count_falses += tmp_false_count;
+				tmp_false_count = 0;
+			} else {
+				/* this is a potential false one */
+				tmp_false_count++;
+			}
+		}
+		if (ps.count < min_count)
+			/* did not reach minimum count, drop sequence */
+			continue;
+
+		/* this is a valid one, add it */
+		ps.deadline_ts = ps.first_ts + ps.dur;
+		new_ps = pool_get_pseq_elem();
+		if (new_ps == NULL) {
+			new_ps = kmalloc(sizeof(*new_ps), GFP_ATOMIC);
+			if (new_ps == NULL) {
+				DFS_POOL_STAT_INC(pseq_alloc_error);
+				return false;
+			}
+			DFS_POOL_STAT_INC(pseq_allocated);
+			DFS_POOL_STAT_INC(pseq_used);
+		}
+		memcpy(new_ps, &ps, sizeof(ps));
+		INIT_LIST_HEAD(&new_ps->head);
+		list_add(&new_ps->head, &pde->sequences);
+	}
+	return true;
+}
+
+/* check new ts and add to all matching existing sequences */
+static u32
+pseq_handler_add_to_existing_seqs(struct pri_detector *pde, u64 ts)
+{
+	u32 max_count = 0;
+	struct pri_sequence *ps, *ps2;
+	list_for_each_entry_safe(ps, ps2, &pde->sequences, head) {
+		u32 delta_ts;
+		u32 factor;
+
+		/* first ensure that sequence is within window */
+		if (ts > ps->deadline_ts) {
+			list_del_init(&ps->head);
+			pool_put_pseq_elem(ps);
+			continue;
+		}
+
+		delta_ts = ts - ps->last_ts;
+		factor = pde_get_multiple(delta_ts, ps->pri,
+					  pde->rs->max_pri_tolerance);
+		if (factor > 0) {
+			ps->last_ts = ts;
+			ps->count++;
+
+			if (max_count < ps->count)
+				max_count = ps->count;
+		} else {
+			ps->count_falses++;
+		}
+	}
+	return max_count;
+}
+
+static struct pri_sequence *
+pseq_handler_check_detection(struct pri_detector *pde)
+{
+	struct pri_sequence *ps;
+
+	if (list_empty(&pde->sequences))
+		return NULL;
+
+	list_for_each_entry(ps, &pde->sequences, head) {
+		/*
+		 * we assume to have enough matching confidence if we
+		 * 1) have enough pulses
+		 * 2) have more matching than false pulses
+		 */
+		if ((ps->count >= pde->rs->ppb_thresh) &&
+		    (ps->count * pde->rs->num_pri >= ps->count_falses))
+			return ps;
+	}
+	return NULL;
+}
+
+
+/* free pulse queue and sequences list and give objects back to pools */
+static void pri_detector_reset(struct pri_detector *pde, u64 ts)
+{
+	struct pri_sequence *ps, *ps0;
+	struct pulse_elem *p, *p0;
+	list_for_each_entry_safe(ps, ps0, &pde->sequences, head) {
+		list_del_init(&ps->head);
+		pool_put_pseq_elem(ps);
+	}
+	list_for_each_entry_safe(p, p0, &pde->pulses, head) {
+		list_del_init(&p->head);
+		pool_put_pulse_elem(p);
+	}
+	pde->count = 0;
+	pde->last_ts = ts;
+}
+
+static void pri_detector_exit(struct pri_detector *de)
+{
+	pri_detector_reset(de, 0);
+	pool_deregister_ref();
+	kfree(de);
+}
+
+static struct pri_sequence *pri_detector_add_pulse(struct pri_detector *de,
+						   struct pulse_event *event)
+{
+	u32 max_updated_seq;
+	struct pri_sequence *ps;
+	u64 ts = event->ts;
+	const struct radar_detector_specs *rs = de->rs;
+
+	/* ignore pulses not within width range */
+	if ((rs->width_min > event->width) || (rs->width_max < event->width))
+		return NULL;
+
+	if ((ts - de->last_ts) < rs->max_pri_tolerance)
+		/* if delta to last pulse is too short, don't use this pulse */
+		return NULL;
+	de->last_ts = ts;
+
+	max_updated_seq = pseq_handler_add_to_existing_seqs(de, ts);
+
+	if (!pseq_handler_create_sequences(de, ts, max_updated_seq)) {
+		pri_detector_reset(de, ts);
+		return NULL;
+	}
+
+	ps = pseq_handler_check_detection(de);
+
+	if (ps == NULL)
+		pulse_queue_enqueue(de, ts);
+
+	return ps;
+}
+
+struct pri_detector *pri_detector_init(const struct radar_detector_specs *rs)
+{
+	struct pri_detector *de;
+
+	de = kzalloc(sizeof(*de), GFP_ATOMIC);
+	if (de == NULL)
+		return NULL;
+	de->exit = pri_detector_exit;
+	de->add_pulse = pri_detector_add_pulse;
+	de->reset = pri_detector_reset;
+
+	INIT_LIST_HEAD(&de->sequences);
+	INIT_LIST_HEAD(&de->pulses);
+	de->window_size = rs->pri_max * rs->ppb * rs->num_pri;
+	de->max_count = rs->ppb * 2;
+	de->rs = rs;
+
+	pool_register_ref();
+	return de;
+}
diff --git a/drivers/net/wireless/ath/dfs_pri_detector.h b/drivers/net/wireless/ath/dfs_pri_detector.h
new file mode 100644
index 000000000000..79f0fff4d1e6
--- /dev/null
+++ b/drivers/net/wireless/ath/dfs_pri_detector.h
@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2012 Neratec Solutions AG
+ *
+ * Permission to use, copy, modify, and/or distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef DFS_PRI_DETECTOR_H
+#define DFS_PRI_DETECTOR_H
+
+#include <linux/list.h>
+
+extern struct ath_dfs_pool_stats global_dfs_pool_stats;
+
+/**
+ * struct pri_sequence - sequence of pulses matching one PRI
+ * @head: list_head
+ * @pri: pulse repetition interval (PRI) in usecs
+ * @dur: duration of sequence in usecs
+ * @count: number of pulses in this sequence
+ * @count_falses: number of not matching pulses in this sequence
+ * @first_ts: time stamp of first pulse in usecs
+ * @last_ts: time stamp of last pulse in usecs
+ * @deadline_ts: deadline when this sequence becomes invalid (first_ts + dur)
+ */
+struct pri_sequence {
+	struct list_head head;
+	u32 pri;
+	u32 dur;
+	u32 count;
+	u32 count_falses;
+	u64 first_ts;
+	u64 last_ts;
+	u64 deadline_ts;
+};
+
+/**
+ * struct pri_detector - PRI detector element for a dedicated radar type
+ * @exit(): destructor
+ * @add_pulse(): add pulse event, returns pri_sequence if pattern was detected
+ * @reset(): clear states and reset to given time stamp
+ * @rs: detector specs for this detector element
+ * @last_ts: last pulse time stamp considered for this element in usecs
+ * @sequences: list_head holding potential pulse sequences
+ * @pulses: list connecting pulse_elem objects
+ * @count: number of pulses in queue
+ * @max_count: maximum number of pulses to be queued
+ * @window_size: window size back from newest pulse time stamp in usecs
+ */
+struct pri_detector {
+	void (*exit)     (struct pri_detector *de);
+	struct pri_sequence *
+	     (*add_pulse)(struct pri_detector *de, struct pulse_event *e);
+	void (*reset)    (struct pri_detector *de, u64 ts);
+
+/* private: internal use only */
+	const struct radar_detector_specs *rs;
+	u64 last_ts;
+	struct list_head sequences;
+	struct list_head pulses;
+	u32 count;
+	u32 max_count;
+	u32 window_size;
+};
+
+struct pri_detector *pri_detector_init(const struct radar_detector_specs *rs);
+
+#endif /* DFS_PRI_DETECTOR_H */
-- 
cgit 


From aa10350d06254c5ee69535eaa48054f162d9bb91 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Mon, 14 Oct 2013 21:59:50 +0200
Subject: rt2x00: rt2800lib: use {tx,rx}_chain_num to avoid superfluous EEPROM
 access

The {rx,tx}_chain_num fields of rt2x00dev->default_ant
contains the number of RX and TX chains already when the
rt2800_probe_hw_mode() function runs. Use those values
instead of parsing the EEPROM configuration values again.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800lib.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index aa8789423937..3ca0d3e79120 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -7450,7 +7450,6 @@ static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 	char *default_power2;
 	char *default_power3;
 	unsigned int i;
-	u16 eeprom;
 	u32 reg;
 
 	/*
@@ -7499,8 +7498,6 @@ static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 	rt2x00dev->hw->max_report_rates = 7;
 	rt2x00dev->hw->max_rate_tries = 1;
 
-	rt2800_eeprom_read(rt2x00dev, EEPROM_NIC_CONF0, &eeprom);
-
 	/*
 	 * Initialize hw_mode information.
 	 */
@@ -7566,22 +7563,21 @@ static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 	    IEEE80211_HT_CAP_SGI_20 |
 	    IEEE80211_HT_CAP_SGI_40;
 
-	if (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF0_TXPATH) >= 2)
+	if (rt2x00dev->default_ant.tx_chain_num >= 2)
 		spec->ht.cap |= IEEE80211_HT_CAP_TX_STBC;
 
-	spec->ht.cap |=
-	    rt2x00_get_field16(eeprom, EEPROM_NIC_CONF0_RXPATH) <<
-		IEEE80211_HT_CAP_RX_STBC_SHIFT;
+	spec->ht.cap |= rt2x00dev->default_ant.rx_chain_num <<
+			IEEE80211_HT_CAP_RX_STBC_SHIFT;
 
 	spec->ht.ampdu_factor = 3;
 	spec->ht.ampdu_density = 4;
 	spec->ht.mcs.tx_params =
 	    IEEE80211_HT_MCS_TX_DEFINED |
 	    IEEE80211_HT_MCS_TX_RX_DIFF |
-	    ((rt2x00_get_field16(eeprom, EEPROM_NIC_CONF0_TXPATH) - 1) <<
-		IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT);
+	    ((rt2x00dev->default_ant.tx_chain_num - 1) <<
+	     IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT);
 
-	switch (rt2x00_get_field16(eeprom, EEPROM_NIC_CONF0_RXPATH)) {
+	switch (rt2x00dev->default_ant.rx_chain_num) {
 	case 3:
 		spec->ht.mcs.rx_mask[2] = 0xff;
 	case 2:
-- 
cgit 


From 4a32c36daa37963cab9140fe9da9c62187931e3c Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Mon, 14 Oct 2013 21:59:51 +0200
Subject: rt2x00: rt2800lib: use switch statement for RF specific setup

It is much more readable than multiple if-else-if
statements.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800lib.c | 51 +++++++++++++++++++--------------
 1 file changed, 30 insertions(+), 21 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 3ca0d3e79120..f143075c4971 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -7504,38 +7504,46 @@ static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 	spec->supported_bands = SUPPORT_BAND_2GHZ;
 	spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
 
-	if (rt2x00_rf(rt2x00dev, RF2820) ||
-	    rt2x00_rf(rt2x00dev, RF2720)) {
+	switch (rt2x00dev->chip.rf) {
+	case RF2720:
+	case RF2820:
 		spec->num_channels = 14;
 		spec->channels = rf_vals;
-	} else if (rt2x00_rf(rt2x00dev, RF2850) ||
-		   rt2x00_rf(rt2x00dev, RF2750)) {
+		break;
+
+	case RF2750:
+	case RF2850:
 		spec->supported_bands |= SUPPORT_BAND_5GHZ;
 		spec->num_channels = ARRAY_SIZE(rf_vals);
 		spec->channels = rf_vals;
-	} else if (rt2x00_rf(rt2x00dev, RF3020) ||
-		   rt2x00_rf(rt2x00dev, RF2020) ||
-		   rt2x00_rf(rt2x00dev, RF3021) ||
-		   rt2x00_rf(rt2x00dev, RF3022) ||
-		   rt2x00_rf(rt2x00dev, RF3070) ||
-		   rt2x00_rf(rt2x00dev, RF3290) ||
-		   rt2x00_rf(rt2x00dev, RF3320) ||
-		   rt2x00_rf(rt2x00dev, RF3322) ||
-		   rt2x00_rf(rt2x00dev, RF5360) ||
-		   rt2x00_rf(rt2x00dev, RF5370) ||
-		   rt2x00_rf(rt2x00dev, RF5372) ||
-		   rt2x00_rf(rt2x00dev, RF5390) ||
-		   rt2x00_rf(rt2x00dev, RF5392)) {
+		break;
+
+	case RF2020:
+	case RF3020:
+	case RF3021:
+	case RF3022:
+	case RF3070:
+	case RF3290:
+	case RF3320:
+	case RF3322:
+	case RF5360:
+	case RF5370:
+	case RF5372:
+	case RF5390:
+	case RF5392:
 		spec->num_channels = 14;
 		spec->channels = rf_vals_3x;
-	} else if (rt2x00_rf(rt2x00dev, RF3052) ||
-		   rt2x00_rf(rt2x00dev, RF3053)) {
+		break;
+
+	case RF3052:
+	case RF3053:
 		spec->supported_bands |= SUPPORT_BAND_5GHZ;
 		spec->num_channels = ARRAY_SIZE(rf_vals_3x);
 		spec->channels = rf_vals_3x;
-	} else if (rt2x00_rf(rt2x00dev, RF5592)) {
-		spec->supported_bands |= SUPPORT_BAND_5GHZ;
+		break;
 
+	case RF5592:
+		spec->supported_bands |= SUPPORT_BAND_5GHZ;
 		rt2800_register_read(rt2x00dev, MAC_DEBUG_INDEX, &reg);
 		if (rt2x00_get_field32(reg, MAC_DEBUG_INDEX_XTAL)) {
 			spec->num_channels = ARRAY_SIZE(rf_vals_5592_xtal40);
@@ -7544,6 +7552,7 @@ static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 			spec->num_channels = ARRAY_SIZE(rf_vals_5592_xtal20);
 			spec->channels = rf_vals_5592_xtal20;
 		}
+		break;
 	}
 
 	if (WARN_ON_ONCE(!spec->channels))
-- 
cgit 


From 53c5a099b8fd45632f4021f0a908b43aabe883fc Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Mon, 14 Oct 2013 21:59:52 +0200
Subject: rt2x00: rt2800lib: autodetect 5GHz band support

If the RF chip supports more than 14 channels that
indirectly means that it supports the 5GHz band.
Use this fact to enable 5GHz band support instead
of setting SUPPORT_BAND_5GHZ separately for each
RF chip.

Also move the setup code of the 2GHz band to the
same place.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800lib.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index f143075c4971..c5738f14c4ba 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -7501,7 +7501,6 @@ static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 	/*
 	 * Initialize hw_mode information.
 	 */
-	spec->supported_bands = SUPPORT_BAND_2GHZ;
 	spec->supported_rates = SUPPORT_RATE_CCK | SUPPORT_RATE_OFDM;
 
 	switch (rt2x00dev->chip.rf) {
@@ -7513,7 +7512,6 @@ static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 
 	case RF2750:
 	case RF2850:
-		spec->supported_bands |= SUPPORT_BAND_5GHZ;
 		spec->num_channels = ARRAY_SIZE(rf_vals);
 		spec->channels = rf_vals;
 		break;
@@ -7537,13 +7535,11 @@ static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 
 	case RF3052:
 	case RF3053:
-		spec->supported_bands |= SUPPORT_BAND_5GHZ;
 		spec->num_channels = ARRAY_SIZE(rf_vals_3x);
 		spec->channels = rf_vals_3x;
 		break;
 
 	case RF5592:
-		spec->supported_bands |= SUPPORT_BAND_5GHZ;
 		rt2800_register_read(rt2x00dev, MAC_DEBUG_INDEX, &reg);
 		if (rt2x00_get_field32(reg, MAC_DEBUG_INDEX_XTAL)) {
 			spec->num_channels = ARRAY_SIZE(rf_vals_5592_xtal40);
@@ -7558,6 +7554,10 @@ static int rt2800_probe_hw_mode(struct rt2x00_dev *rt2x00dev)
 	if (WARN_ON_ONCE(!spec->channels))
 		return -ENODEV;
 
+	spec->supported_bands = SUPPORT_BAND_2GHZ;
+	if (spec->num_channels > 14)
+		spec->supported_bands |= SUPPORT_BAND_5GHZ;
+
 	/*
 	 * Initialize HT information.
 	 */
-- 
cgit 


From 03f27120fb935f2a7f1a7471acb6450dbc64e564 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
Date: Mon, 14 Oct 2013 17:42:06 -0700
Subject: cfg80211: export reg_initiator_name()

Drivers can now use this to parse the regulatory request and
be more verbose when needed.

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 include/net/cfg80211.h |  9 +++++++++
 net/wireless/reg.c     | 27 +++++++++++++++++----------
 2 files changed, 26 insertions(+), 10 deletions(-)

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 45f6bf591104..419202ce3f95 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -3483,6 +3483,15 @@ void wiphy_apply_custom_regulatory(struct wiphy *wiphy,
 const struct ieee80211_reg_rule *freq_reg_info(struct wiphy *wiphy,
 					       u32 center_freq);
 
+/**
+ * reg_initiator_name - map regulatory request initiator enum to name
+ * @initiator: the regulatory request initiator
+ *
+ * You can use this to map the regulatory request initiator enum to a
+ * proper string representation.
+ */
+const char *reg_initiator_name(enum nl80211_reg_initiator initiator);
+
 /*
  * callbacks for asynchronous cfg80211 methods, notification
  * functions and BSS handling helpers
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index d62cb1e91475..a0ec143ba3dc 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -768,23 +768,25 @@ const struct ieee80211_reg_rule *freq_reg_info(struct wiphy *wiphy,
 }
 EXPORT_SYMBOL(freq_reg_info);
 
-#ifdef CONFIG_CFG80211_REG_DEBUG
-static const char *reg_initiator_name(enum nl80211_reg_initiator initiator)
+const char *reg_initiator_name(enum nl80211_reg_initiator initiator)
 {
 	switch (initiator) {
 	case NL80211_REGDOM_SET_BY_CORE:
-		return "Set by core";
+		return "core";
 	case NL80211_REGDOM_SET_BY_USER:
-		return "Set by user";
+		return "user";
 	case NL80211_REGDOM_SET_BY_DRIVER:
-		return "Set by driver";
+		return "driver";
 	case NL80211_REGDOM_SET_BY_COUNTRY_IE:
-		return "Set by country IE";
+		return "country IE";
 	default:
 		WARN_ON(1);
-		return "Set by bug";
+		return "bug";
 	}
 }
+EXPORT_SYMBOL(reg_initiator_name);
+
+#ifdef CONFIG_CFG80211_REG_DEBUG
 
 static void chan_reg_rule_print_dbg(struct ieee80211_channel *chan,
 				    const struct ieee80211_reg_rule *reg_rule)
@@ -979,14 +981,17 @@ static bool ignore_reg_update(struct wiphy *wiphy,
 	struct regulatory_request *lr = get_last_request();
 
 	if (!lr) {
-		REG_DBG_PRINT("Ignoring regulatory request %s since last_request is not set\n",
+		REG_DBG_PRINT("Ignoring regulatory request set by %s "
+			      "since last_request is not set\n",
 			      reg_initiator_name(initiator));
 		return true;
 	}
 
 	if (initiator == NL80211_REGDOM_SET_BY_CORE &&
 	    wiphy->flags & WIPHY_FLAG_CUSTOM_REGULATORY) {
-		REG_DBG_PRINT("Ignoring regulatory request %s since the driver uses its own custom regulatory domain\n",
+		REG_DBG_PRINT("Ignoring regulatory request set by %s "
+			      "since the driver uses its own custom "
+			      "regulatory domain\n",
 			      reg_initiator_name(initiator));
 		return true;
 	}
@@ -998,7 +1003,9 @@ static bool ignore_reg_update(struct wiphy *wiphy,
 	if (wiphy->flags & WIPHY_FLAG_STRICT_REGULATORY && !wiphy->regd &&
 	    initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE &&
 	    !is_world_regdom(lr->alpha2)) {
-		REG_DBG_PRINT("Ignoring regulatory request %s since the driver requires its own regulatory domain to be set first\n",
+		REG_DBG_PRINT("Ignoring regulatory request set by %s "
+			      "since the driver requires its own regulatory "
+			      "domain to be set first\n",
 			      reg_initiator_name(initiator));
 		return true;
 	}
-- 
cgit 


From 8a3b6c800a993bbc7559bcfa77a34e4fc633cf0e Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
Date: Mon, 14 Oct 2013 17:42:07 -0700
Subject: ath: move common dynamic regulatory domain setting to a helper

This moves the dynamic regulatory domain selection code into
a helper.

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/regd.c | 55 +++++++++++++++++++++++++++--------------
 1 file changed, 37 insertions(+), 18 deletions(-)

diff --git a/drivers/net/wireless/ath/regd.c b/drivers/net/wireless/ath/regd.c
index 7d077c752dd5..8373650a946e 100644
--- a/drivers/net/wireless/ath/regd.c
+++ b/drivers/net/wireless/ath/regd.c
@@ -356,14 +356,48 @@ static u16 ath_regd_find_country_by_name(char *alpha2)
 	return -1;
 }
 
+static int __ath_reg_dyn_country(struct wiphy *wiphy,
+				 struct ath_regulatory *reg,
+				 struct regulatory_request *request)
+{
+	u16 country_code;
+
+	if (!ath_is_world_regd(reg))
+		return -EINVAL;
+
+	country_code = ath_regd_find_country_by_name(request->alpha2);
+	if (country_code == (u16) -1)
+		return -EINVAL;
+
+	reg->current_rd = COUNTRY_ERD_FLAG;
+	reg->current_rd |= country_code;
+
+	__ath_regd_init(reg);
+
+	ath_reg_apply_world_flags(wiphy, request->initiator, reg);
+
+	return 0;
+}
+
+static void ath_reg_dyn_country(struct wiphy *wiphy,
+				struct ath_regulatory *reg,
+				struct regulatory_request *request)
+{
+	if (__ath_reg_dyn_country(wiphy, reg, request))
+		return;
+
+	printk(KERN_DEBUG "ath: regdomain 0x%0x "
+			  "dynamically updated by %s\n",
+	       reg->current_rd,
+	       reg_initiator_name(request->initiator));
+}
+
 void ath_reg_notifier_apply(struct wiphy *wiphy,
 			    struct regulatory_request *request,
 			    struct ath_regulatory *reg)
 {
 	struct ath_common *common = container_of(reg, struct ath_common,
 						 regulatory);
-	u16 country_code;
-
 	/* We always apply this */
 	ath_reg_apply_radar_flags(wiphy);
 
@@ -391,22 +425,7 @@ void ath_reg_notifier_apply(struct wiphy *wiphy,
 	case NL80211_REGDOM_SET_BY_USER:
 		break;
 	case NL80211_REGDOM_SET_BY_COUNTRY_IE:
-		if (!ath_is_world_regd(reg))
-			break;
-
-		country_code = ath_regd_find_country_by_name(request->alpha2);
-		if (country_code == (u16) -1)
-			break;
-
-		reg->current_rd = COUNTRY_ERD_FLAG;
-		reg->current_rd |= country_code;
-
-		printk(KERN_DEBUG "ath: regdomain 0x%0x updated by CountryIE\n",
-			reg->current_rd);
-		__ath_regd_init(reg);
-
-		ath_reg_apply_world_flags(wiphy, request->initiator, reg);
-
+		ath_reg_dyn_country(wiphy, reg, request);
 		break;
 	}
 }
-- 
cgit 


From 4da225bbc366a4efd6458636c155b34ac9784d4b Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
Date: Mon, 14 Oct 2013 17:42:08 -0700
Subject: ath: split user and driver reguluatory hint parsing

On the regulatory notifier split up the parsing of the
hints coming from drivers or user. We'll treat these
separately.

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/regd.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/ath/regd.c b/drivers/net/wireless/ath/regd.c
index 8373650a946e..7222eebba47e 100644
--- a/drivers/net/wireless/ath/regd.c
+++ b/drivers/net/wireless/ath/regd.c
@@ -422,6 +422,7 @@ void ath_reg_notifier_apply(struct wiphy *wiphy,
 		       sizeof(struct ath_regulatory));
 		break;
 	case NL80211_REGDOM_SET_BY_DRIVER:
+		break;
 	case NL80211_REGDOM_SET_BY_USER:
 		break;
 	case NL80211_REGDOM_SET_BY_COUNTRY_IE:
-- 
cgit 


From 94e7876daa4396d7a997d57dfcceaab6851bd017 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
Date: Mon, 14 Oct 2013 17:42:09 -0700
Subject: ath: add support for proper dynamic regulatory hints

This enables support for dynamic user regulatory hints.
This is enabled only when CFG80211_CERTIFICATION_ONUS
is selected. For US and JP this is explicitly disabled
unless the systems are being used for strict controlled
testing.

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/Kconfig | 17 ++++++++
 drivers/net/wireless/ath/regd.c  | 84 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 101 insertions(+)

diff --git a/drivers/net/wireless/ath/Kconfig b/drivers/net/wireless/ath/Kconfig
index ba81d6292eeb..c63d1159db5c 100644
--- a/drivers/net/wireless/ath/Kconfig
+++ b/drivers/net/wireless/ath/Kconfig
@@ -25,6 +25,23 @@ config ATH_DEBUG
 	  Say Y, if you want to debug atheros wireless drivers.
 	  Right now only ath9k makes use of this.
 
+config ATH_REG_DYNAMIC_USER_REG_HINTS
+	bool "Atheros dynamic user regulatory hints"
+	depends on CFG80211_CERTIFICATION_ONUS
+	default n
+	---help---
+	  Say N. This should only be enabled in countries where
+	  this feature is explicitly allowed and only on cards that
+	  specifically have been tested for this.
+
+config ATH_REG_DYNAMIC_USER_CERT_TESTING
+	bool "Atheros dynamic user regulatory testing"
+	depends on ATH_REG_DYNAMIC_USER_REG_HINTS && CFG80211_CERTIFICATION_ONUS
+	default n
+	---help---
+	  Say N. This should only be enabled on systems
+	  undergoing certification testing.
+
 source "drivers/net/wireless/ath/ath5k/Kconfig"
 source "drivers/net/wireless/ath/ath9k/Kconfig"
 source "drivers/net/wireless/ath/carl9170/Kconfig"
diff --git a/drivers/net/wireless/ath/regd.c b/drivers/net/wireless/ath/regd.c
index 7222eebba47e..c00687e05688 100644
--- a/drivers/net/wireless/ath/regd.c
+++ b/drivers/net/wireless/ath/regd.c
@@ -392,6 +392,89 @@ static void ath_reg_dyn_country(struct wiphy *wiphy,
 	       reg_initiator_name(request->initiator));
 }
 
+static bool dynamic_country_user_possible(struct ath_regulatory *reg)
+{
+	if (config_enabled(CONFIG_ATH_REG_DYNAMIC_USER_CERT_TESTING))
+		return true;
+
+	switch (reg->country_code) {
+	case CTRY_UNITED_STATES:
+	case CTRY_JAPAN1:
+	case CTRY_JAPAN2:
+	case CTRY_JAPAN3:
+	case CTRY_JAPAN4:
+	case CTRY_JAPAN5:
+	case CTRY_JAPAN6:
+	case CTRY_JAPAN7:
+	case CTRY_JAPAN8:
+	case CTRY_JAPAN9:
+	case CTRY_JAPAN10:
+	case CTRY_JAPAN11:
+	case CTRY_JAPAN12:
+	case CTRY_JAPAN13:
+	case CTRY_JAPAN14:
+	case CTRY_JAPAN15:
+	case CTRY_JAPAN16:
+	case CTRY_JAPAN17:
+	case CTRY_JAPAN18:
+	case CTRY_JAPAN19:
+	case CTRY_JAPAN20:
+	case CTRY_JAPAN21:
+	case CTRY_JAPAN22:
+	case CTRY_JAPAN23:
+	case CTRY_JAPAN24:
+	case CTRY_JAPAN25:
+	case CTRY_JAPAN26:
+	case CTRY_JAPAN27:
+	case CTRY_JAPAN28:
+	case CTRY_JAPAN29:
+	case CTRY_JAPAN30:
+	case CTRY_JAPAN31:
+	case CTRY_JAPAN32:
+	case CTRY_JAPAN33:
+	case CTRY_JAPAN34:
+	case CTRY_JAPAN35:
+	case CTRY_JAPAN36:
+	case CTRY_JAPAN37:
+	case CTRY_JAPAN38:
+	case CTRY_JAPAN39:
+	case CTRY_JAPAN40:
+	case CTRY_JAPAN41:
+	case CTRY_JAPAN42:
+	case CTRY_JAPAN43:
+	case CTRY_JAPAN44:
+	case CTRY_JAPAN45:
+	case CTRY_JAPAN46:
+	case CTRY_JAPAN47:
+	case CTRY_JAPAN48:
+	case CTRY_JAPAN49:
+	case CTRY_JAPAN50:
+	case CTRY_JAPAN51:
+	case CTRY_JAPAN52:
+	case CTRY_JAPAN53:
+	case CTRY_JAPAN54:
+	case CTRY_JAPAN55:
+	case CTRY_JAPAN56:
+	case CTRY_JAPAN57:
+	case CTRY_JAPAN58:
+	case CTRY_JAPAN59:
+		return false;
+	}
+
+	return true;
+}
+
+static void ath_reg_dyn_country_user(struct wiphy *wiphy,
+				     struct ath_regulatory *reg,
+				     struct regulatory_request *request)
+{
+	if (!config_enabled(CONFIG_ATH_REG_DYNAMIC_USER_REG_HINTS))
+		return;
+	if (!dynamic_country_user_possible(reg))
+		return;
+	ath_reg_dyn_country(wiphy, reg, request);
+}
+
 void ath_reg_notifier_apply(struct wiphy *wiphy,
 			    struct regulatory_request *request,
 			    struct ath_regulatory *reg)
@@ -424,6 +507,7 @@ void ath_reg_notifier_apply(struct wiphy *wiphy,
 	case NL80211_REGDOM_SET_BY_DRIVER:
 		break;
 	case NL80211_REGDOM_SET_BY_USER:
+		ath_reg_dyn_country_user(wiphy, reg, request);
 		break;
 	case NL80211_REGDOM_SET_BY_COUNTRY_IE:
 		ath_reg_dyn_country(wiphy, reg, request);
-- 
cgit 


From 09b029b6b68daa4b961841173d90f267cee9c117 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
Date: Mon, 14 Oct 2013 17:42:10 -0700
Subject: ath9k: check for NULL rate when using ieee80211_get_rts_cts_rate()

ieee80211_get_rts_cts_rate() can return NULL, so don't rely
on its members when it does return NULL.

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/xmit.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index fc76052c0721..6bcf62fd3da8 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -2006,6 +2006,9 @@ static void setup_frame_info(struct ieee80211_hw *hw,
 		fi->keyix = ATH9K_TXKEYIX_INVALID;
 	fi->keytype = keytype;
 	fi->framelen = framelen;
+
+	if (!rate)
+		return;
 	fi->rtscts_rate = rate->hw_value;
 	if (short_preamble)
 		fi->rtscts_rate |= rate->hw_value_short;
-- 
cgit 


From 89f927af7f3389e20c8ad24abfb3d1369f3ffc10 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
Date: Mon, 14 Oct 2013 17:42:11 -0700
Subject: ath9k: add TX99 support

TX99 support enables Specific Absorption Rate (SAR) testing.
SAR is the unit of measurement for the amount of radio frequency(RF)
absorbed by the body when using a wireless device. The RF
exposure limits used are expressed in the terms of SAR, which is a
measure of the electric and magnetic field strength and power density
for transmitters operating at frequencies from 300 kHz to 100 GHz.

Regulatory bodies around the world require that wireless device
be evaluated to meet the RF exposure limits set forth in the
governmental SAR regulations.

In the examples below, for more bit rate options see the iw TX bitrate
setting documentation:

http://wireless.kernel.org/en/users/Documentation/iw#Modifying_transmit_bitrates

Example usage:

iw phy phy0 interface add moni0 type monitor
ip link set dev moni0 up

iw dev moni0 set channel 36 HT40+
iw set bitrates mcs-5 4

echo 10 > /sys/kernel/debug/ieee80211/phy0/ath9k/tx99_power
echo 1  > /sys/kernel/debug/ieee80211/phy0/ath9k/tx99

Signed-off-by: Rajkumar Manoharan <rmanohar@qca.qualcomm.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/Kconfig      |  20 ++++
 drivers/net/wireless/ath/ath9k/ar9002_phy.c |  22 ++++
 drivers/net/wireless/ath/ath9k/ar9003_phy.c |  95 +++++++++++++++++
 drivers/net/wireless/ath/ath9k/ath9k.h      |  10 ++
 drivers/net/wireless/ath/ath9k/debug.c      | 118 ++++++++++++++++++++
 drivers/net/wireless/ath/ath9k/hw-ops.h     |  16 +++
 drivers/net/wireless/ath/ath9k/hw.h         |   4 +
 drivers/net/wireless/ath/ath9k/init.c       |  26 ++---
 drivers/net/wireless/ath/ath9k/link.c       |  12 ++-
 drivers/net/wireless/ath/ath9k/main.c       | 160 +++++++++++++++++++++++++++-
 drivers/net/wireless/ath/ath9k/recv.c       |   3 +
 drivers/net/wireless/ath/ath9k/xmit.c       |  53 ++++++++-
 12 files changed, 522 insertions(+), 17 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/Kconfig b/drivers/net/wireless/ath/ath9k/Kconfig
index 7944c25c9a43..32f139e2e897 100644
--- a/drivers/net/wireless/ath/ath9k/Kconfig
+++ b/drivers/net/wireless/ath/ath9k/Kconfig
@@ -84,6 +84,26 @@ config ATH9K_DFS_CERTIFIED
 	  developed. At this point enabling this option won't do anything
 	  except increase code size.
 
+config ATH9K_TX99
+	bool "Atheros ath9k TX99 testing support"
+	depends on CFG80211_CERTIFICATION_ONUS
+	default n
+	---help---
+	  Say N. This should only be enabled on systems undergoing
+	  certification testing and evaluation in a controlled environment.
+	  Enabling this will only enable TX99 support, all other modes of
+	  operation will be disabled.
+
+	  TX99 support enables Specific Absorption Rate (SAR) testing.
+	  SAR is the unit of measurement for the amount of radio frequency(RF)
+	  absorbed by the body when using a wireless device. The RF exposure
+	  limits used are expressed in the terms of SAR, which is a measure
+	  of the electric and magnetic field strength and power density for
+	  transmitters operating at frequencies from 300 kHz to 100 GHz.
+	  Regulatory bodies around the world require that wireless device
+	  be evaluated to meet the RF exposure limits set forth in the
+	  governmental SAR regulations.
+
 config ATH9K_LEGACY_RATE_CONTROL
 	bool "Atheros ath9k rate control"
 	depends on ATH9K
diff --git a/drivers/net/wireless/ath/ath9k/ar9002_phy.c b/drivers/net/wireless/ath/ath9k/ar9002_phy.c
index 17970d49d858..f087117b2e6b 100644
--- a/drivers/net/wireless/ath/ath9k/ar9002_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9002_phy.c
@@ -680,6 +680,26 @@ static void ar9002_hw_spectral_scan_wait(struct ath_hw *ah)
 	}
 }
 
+static void ar9002_hw_tx99_start(struct ath_hw *ah, u32 qnum)
+{
+	REG_SET_BIT(ah, 0x9864, 0x7f000);
+	REG_SET_BIT(ah, 0x9924, 0x7f00fe);
+	REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_DIS);
+	REG_WRITE(ah, AR_CR, AR_CR_RXD);
+	REG_WRITE(ah, AR_DLCL_IFS(qnum), 0);
+	REG_WRITE(ah, AR_D_GBL_IFS_SIFS, 20);
+	REG_WRITE(ah, AR_D_GBL_IFS_EIFS, 20);
+	REG_WRITE(ah, AR_D_FPCTL, 0x10|qnum);
+	REG_WRITE(ah, AR_TIME_OUT, 0x00000400);
+	REG_WRITE(ah, AR_DRETRY_LIMIT(qnum), 0xffffffff);
+	REG_SET_BIT(ah, AR_QMISC(qnum), AR_Q_MISC_DCU_EARLY_TERM_REQ);
+}
+
+static void ar9002_hw_tx99_stop(struct ath_hw *ah)
+{
+	REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_DIS);
+}
+
 void ar9002_hw_attach_phy_ops(struct ath_hw *ah)
 {
 	struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
@@ -701,6 +721,8 @@ void ar9002_hw_attach_phy_ops(struct ath_hw *ah)
 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
 	ops->set_bt_ant_diversity = ar9002_hw_set_bt_ant_diversity;
 #endif
+	ops->tx99_start = ar9002_hw_tx99_start;
+	ops->tx99_stop = ar9002_hw_tx99_stop;
 
 	ar9002_hw_set_nf_limits(ah);
 }
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index f3adafd33704..11f53589a3f3 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -1617,6 +1617,98 @@ static void ar9003_hw_spectral_scan_wait(struct ath_hw *ah)
 	}
 }
 
+static void ar9003_hw_tx99_start(struct ath_hw *ah, u32 qnum)
+{
+	REG_SET_BIT(ah, AR_PHY_TEST, PHY_AGC_CLR);
+	REG_SET_BIT(ah, 0x9864, 0x7f000);
+	REG_SET_BIT(ah, 0x9924, 0x7f00fe);
+	REG_CLR_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_DIS);
+	REG_WRITE(ah, AR_CR, AR_CR_RXD);
+	REG_WRITE(ah, AR_DLCL_IFS(qnum), 0);
+	REG_WRITE(ah, AR_D_GBL_IFS_SIFS, 20); /* 50 OK */
+	REG_WRITE(ah, AR_D_GBL_IFS_EIFS, 20);
+	REG_WRITE(ah, AR_TIME_OUT, 0x00000400);
+	REG_WRITE(ah, AR_DRETRY_LIMIT(qnum), 0xffffffff);
+	REG_SET_BIT(ah, AR_QMISC(qnum), AR_Q_MISC_DCU_EARLY_TERM_REQ);
+}
+
+static void ar9003_hw_tx99_stop(struct ath_hw *ah)
+{
+	REG_CLR_BIT(ah, AR_PHY_TEST, PHY_AGC_CLR);
+	REG_SET_BIT(ah, AR_DIAG_SW, AR_DIAG_RX_DIS);
+}
+
+static void ar9003_hw_tx99_set_txpower(struct ath_hw *ah, u8 txpower)
+{
+	static s16 p_pwr_array[ar9300RateSize] = { 0 };
+	unsigned int i;
+
+	if (txpower <= MAX_RATE_POWER) {
+		for (i = 0; i < ar9300RateSize; i++)
+			p_pwr_array[i] = txpower;
+	} else {
+		for (i = 0; i < ar9300RateSize; i++)
+			p_pwr_array[i] = MAX_RATE_POWER;
+	}
+
+	REG_WRITE(ah, 0xa458, 0);
+
+	REG_WRITE(ah, 0xa3c0,
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_6_24], 24) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_6_24], 16) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_6_24],  8) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_6_24],  0));
+	REG_WRITE(ah, 0xa3c4,
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_54],  24) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_48],  16) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_36],   8) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_6_24], 0));
+	REG_WRITE(ah, 0xa3c8,
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_1L_5L], 24) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_1L_5L], 16) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_1L_5L],  0));
+	REG_WRITE(ah, 0xa3cc,
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_11S],   24) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_11L],   16) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_5S],     8) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_LEGACY_1L_5L],  0));
+	REG_WRITE(ah, 0xa3d0,
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_5],  24) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_4],  16) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_1_3_9_11_17_19], 8)|
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_0_8_16], 0));
+	REG_WRITE(ah, 0xa3d4,
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_13], 24) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_12], 16) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_7],   8) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_6],   0));
+	REG_WRITE(ah, 0xa3e4,
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_21], 24) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_20], 16) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_15],  8) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_14],  0));
+	REG_WRITE(ah, 0xa3e8,
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_23], 24) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_22], 16) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_23],  8) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT20_22],  0));
+	REG_WRITE(ah, 0xa3d8,
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_5], 24) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_4], 16) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_1_3_9_11_17_19], 8) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_0_8_16], 0));
+	REG_WRITE(ah, 0xa3dc,
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_13], 24) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_12], 16) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_7],   8) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_6],   0));
+	REG_WRITE(ah, 0xa3ec,
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_21], 24) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_20], 16) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_15],  8) |
+		  ATH9K_POW_SM(p_pwr_array[ALL_TARGET_HT40_14],  0));
+}
+
 void ar9003_hw_attach_phy_ops(struct ath_hw *ah)
 {
 	struct ath_hw_private_ops *priv_ops = ath9k_hw_private_ops(ah);
@@ -1656,6 +1748,9 @@ void ar9003_hw_attach_phy_ops(struct ath_hw *ah)
 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
 	ops->set_bt_ant_diversity = ar9003_hw_set_bt_ant_diversity;
 #endif
+	ops->tx99_start = ar9003_hw_tx99_start;
+	ops->tx99_stop = ar9003_hw_tx99_stop;
+	ops->tx99_set_txpower = ar9003_hw_tx99_set_txpower;
 
 	ar9003_hw_set_nf_limits(ah);
 	ar9003_hw_set_radar_conf(ah);
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 1fce36dd9088..4c3bbe4f3095 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -778,6 +778,11 @@ struct ath_softc {
 	enum spectral_mode spectral_mode;
 	struct ath_spec_scan spec_config;
 
+	struct ieee80211_vif *tx99_vif;
+	struct sk_buff *tx99_skb;
+	bool tx99_state;
+	s16 tx99_power;
+
 #ifdef CONFIG_PM_SLEEP
 	atomic_t wow_got_bmiss_intr;
 	atomic_t wow_sleep_proc_intr; /* in the middle of WoW sleep ? */
@@ -941,6 +946,11 @@ struct fft_sample_ht20_40 {
 	u8 data[SPECTRAL_HT20_40_NUM_BINS];
 } __packed;
 
+int ath9k_tx99_init(struct ath_softc *sc);
+void ath9k_tx99_deinit(struct ath_softc *sc);
+int ath9k_tx99_send(struct ath_softc *sc, struct sk_buff *skb,
+		    struct ath_tx_control *txctl);
+
 void ath9k_tasklet(unsigned long data);
 int ath_cabq_update(struct ath_softc *);
 
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index 1be2c787aac9..83a2c59f680b 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -1050,6 +1050,9 @@ static ssize_t write_file_spec_scan_ctl(struct file *file,
 	char buf[32];
 	ssize_t len;
 
+	if (config_enabled(CONFIG_ATH9K_TX99))
+		return -EOPNOTSUPP;
+
 	len = min(count, sizeof(buf) - 1);
 	if (copy_from_user(buf, user_buf, len))
 		return -EFAULT;
@@ -1775,6 +1778,111 @@ void ath9k_deinit_debug(struct ath_softc *sc)
 	}
 }
 
+static ssize_t read_file_tx99(struct file *file, char __user *user_buf,
+			      size_t count, loff_t *ppos)
+{
+	struct ath_softc *sc = file->private_data;
+	char buf[3];
+	unsigned int len;
+
+	len = sprintf(buf, "%d\n", sc->tx99_state);
+	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static ssize_t write_file_tx99(struct file *file, const char __user *user_buf,
+			       size_t count, loff_t *ppos)
+{
+	struct ath_softc *sc = file->private_data;
+	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+	char buf[32];
+	bool start;
+	ssize_t len;
+	int r;
+
+	if (sc->nvifs > 1)
+		return -EOPNOTSUPP;
+
+	len = min(count, sizeof(buf) - 1);
+	if (copy_from_user(buf, user_buf, len))
+		return -EFAULT;
+
+	if (strtobool(buf, &start))
+		return -EINVAL;
+
+	if (start == sc->tx99_state) {
+		if (!start)
+			return count;
+		ath_dbg(common, XMIT, "Resetting TX99\n");
+		ath9k_tx99_deinit(sc);
+	}
+
+	if (!start) {
+		ath9k_tx99_deinit(sc);
+		return count;
+	}
+
+	r = ath9k_tx99_init(sc);
+	if (r)
+		return r;
+
+	return count;
+}
+
+static const struct file_operations fops_tx99 = {
+	.read = read_file_tx99,
+	.write = write_file_tx99,
+	.open = simple_open,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,
+};
+
+static ssize_t read_file_tx99_power(struct file *file,
+				    char __user *user_buf,
+				    size_t count, loff_t *ppos)
+{
+	struct ath_softc *sc = file->private_data;
+	char buf[32];
+	unsigned int len;
+
+	len = sprintf(buf, "%d (%d dBm)\n",
+		      sc->tx99_power,
+		      sc->tx99_power / 2);
+
+	return simple_read_from_buffer(user_buf, count, ppos, buf, len);
+}
+
+static ssize_t write_file_tx99_power(struct file *file,
+				     const char __user *user_buf,
+				     size_t count, loff_t *ppos)
+{
+	struct ath_softc *sc = file->private_data;
+	int r;
+	u8 tx_power;
+
+	r = kstrtou8_from_user(user_buf, count, 0, &tx_power);
+	if (r)
+		return r;
+
+	if (tx_power > MAX_RATE_POWER)
+		return -EINVAL;
+
+	sc->tx99_power = tx_power;
+
+	ath9k_ps_wakeup(sc);
+	ath9k_hw_tx99_set_txpower(sc->sc_ah, sc->tx99_power);
+	ath9k_ps_restore(sc);
+
+	return count;
+}
+
+static const struct file_operations fops_tx99_power = {
+	.read = read_file_tx99_power,
+	.write = write_file_tx99_power,
+	.open = simple_open,
+	.owner = THIS_MODULE,
+	.llseek = default_llseek,
+};
+
 int ath9k_init_debug(struct ath_hw *ah)
 {
 	struct ath_common *common = ath9k_hw_common(ah);
@@ -1866,5 +1974,15 @@ int ath9k_init_debug(struct ath_hw *ah)
 	debugfs_create_file("btcoex", S_IRUSR, sc->debug.debugfs_phy, sc,
 			    &fops_btcoex);
 #endif
+	if (config_enabled(CONFIG_ATH9K_TX99) &&
+	    AR_SREV_9300_20_OR_LATER(ah)) {
+		debugfs_create_file("tx99", S_IRUSR | S_IWUSR,
+				    sc->debug.debugfs_phy, sc,
+				    &fops_tx99);
+		debugfs_create_file("tx99_power", S_IRUSR | S_IWUSR,
+				    sc->debug.debugfs_phy, sc,
+				    &fops_tx99_power);
+	}
+
 	return 0;
 }
diff --git a/drivers/net/wireless/ath/ath9k/hw-ops.h b/drivers/net/wireless/ath/ath9k/hw-ops.h
index 83f4927aeaca..4f9378ddf07f 100644
--- a/drivers/net/wireless/ath/ath9k/hw-ops.h
+++ b/drivers/net/wireless/ath/ath9k/hw-ops.h
@@ -78,6 +78,22 @@ static inline void ath9k_hw_antdiv_comb_conf_set(struct ath_hw *ah,
 	ath9k_hw_ops(ah)->antdiv_comb_conf_set(ah, antconf);
 }
 
+static inline void ath9k_hw_tx99_start(struct ath_hw *ah, u32 qnum)
+{
+	ath9k_hw_ops(ah)->tx99_start(ah, qnum);
+}
+
+static inline void ath9k_hw_tx99_stop(struct ath_hw *ah)
+{
+	ath9k_hw_ops(ah)->tx99_stop(ah);
+}
+
+static inline void ath9k_hw_tx99_set_txpower(struct ath_hw *ah, u8 power)
+{
+	if (ath9k_hw_ops(ah)->tx99_set_txpower)
+		ath9k_hw_ops(ah)->tx99_set_txpower(ah, power);
+}
+
 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
 
 static inline void ath9k_hw_set_bt_ant_diversity(struct ath_hw *ah, bool enable)
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 81fcbc756122..9ea24f1cba73 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -703,6 +703,10 @@ struct ath_hw_ops {
 	void (*spectral_scan_trigger)(struct ath_hw *ah);
 	void (*spectral_scan_wait)(struct ath_hw *ah);
 
+	void (*tx99_start)(struct ath_hw *ah, u32 qnum);
+	void (*tx99_stop)(struct ath_hw *ah);
+	void (*tx99_set_txpower)(struct ath_hw *ah, u8 power);
+
 #ifdef CONFIG_ATH9K_BTCOEX_SUPPORT
 	void (*set_bt_ant_diversity)(struct ath_hw *hw, bool enable);
 #endif
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index ba02ef2ab8a6..e89db64532f5 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -682,6 +682,7 @@ static int ath9k_init_softc(u16 devid, struct ath_softc *sc,
 
 	common = ath9k_hw_common(ah);
 	sc->dfs_detector = dfs_pattern_detector_init(common, NL80211_DFS_UNSET);
+	sc->tx99_power = MAX_RATE_POWER + 1;
 
 	if (!pdata) {
 		ah->ah_flags |= AH_USE_EEPROM;
@@ -785,6 +786,7 @@ err_queues:
 	ath9k_hw_deinit(ah);
 err_hw:
 	ath9k_eeprom_release(sc);
+	dev_kfree_skb_any(sc->tx99_skb);
 	return ret;
 }
 
@@ -842,7 +844,6 @@ static const struct ieee80211_iface_limit if_limits[] = {
 				 BIT(NL80211_IFTYPE_P2P_GO) },
 };
 
-
 static const struct ieee80211_iface_limit if_dfs_limits[] = {
 	{ .max = 1,	.types = BIT(NL80211_IFTYPE_AP) },
 };
@@ -903,17 +904,18 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
 
 	hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR;
 
-	hw->wiphy->interface_modes =
-		BIT(NL80211_IFTYPE_P2P_GO) |
-		BIT(NL80211_IFTYPE_P2P_CLIENT) |
-		BIT(NL80211_IFTYPE_AP) |
-		BIT(NL80211_IFTYPE_WDS) |
-		BIT(NL80211_IFTYPE_STATION) |
-		BIT(NL80211_IFTYPE_ADHOC) |
-		BIT(NL80211_IFTYPE_MESH_POINT);
-
-	hw->wiphy->iface_combinations = if_comb;
-	hw->wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
+	if (!config_enabled(CONFIG_ATH9K_TX99)) {
+		hw->wiphy->interface_modes =
+			BIT(NL80211_IFTYPE_P2P_GO) |
+			BIT(NL80211_IFTYPE_P2P_CLIENT) |
+			BIT(NL80211_IFTYPE_AP) |
+			BIT(NL80211_IFTYPE_WDS) |
+			BIT(NL80211_IFTYPE_STATION) |
+			BIT(NL80211_IFTYPE_ADHOC) |
+			BIT(NL80211_IFTYPE_MESH_POINT);
+		hw->wiphy->iface_combinations = if_comb;
+		hw->wiphy->n_iface_combinations = ARRAY_SIZE(if_comb);
+	}
 
 	hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
 
diff --git a/drivers/net/wireless/ath/ath9k/link.c b/drivers/net/wireless/ath/ath9k/link.c
index b7975195d740..aed7e29dc50f 100644
--- a/drivers/net/wireless/ath/ath9k/link.c
+++ b/drivers/net/wireless/ath/ath9k/link.c
@@ -28,6 +28,13 @@ void ath_tx_complete_poll_work(struct work_struct *work)
 	int i;
 	bool needreset = false;
 
+
+	if (sc->tx99_state) {
+		ath_dbg(ath9k_hw_common(sc->sc_ah), RESET,
+			"skip tx hung detection on tx99\n");
+		return;
+	}
+
 	for (i = 0; i < IEEE80211_NUM_ACS; i++) {
 		txq = sc->tx.txq_map[i];
 
@@ -70,7 +77,7 @@ void ath_hw_check(struct work_struct *work)
 	ath9k_ps_wakeup(sc);
 	is_alive = ath9k_hw_check_alive(sc->sc_ah);
 
-	if (is_alive && !AR_SREV_9300(sc->sc_ah))
+	if ((is_alive && !AR_SREV_9300(sc->sc_ah)) || sc->tx99_state)
 		goto out;
 	else if (!is_alive && AR_SREV_9300(sc->sc_ah)) {
 		ath_dbg(common, RESET,
@@ -141,6 +148,9 @@ void ath_hw_pll_work(struct work_struct *work)
 	if (!test_bit(SC_OP_BEACONS, &sc->sc_flags))
 		return;
 
+	if (sc->tx99_state)
+		return;
+
 	ath9k_ps_wakeup(sc);
 	pll_sqsum = ar9003_get_pll_sqsum_dvc(sc->sc_ah);
 	ath9k_ps_restore(sc);
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index c42b55c1face..98964b02f139 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1047,6 +1047,14 @@ static int ath9k_add_interface(struct ieee80211_hw *hw,
 
 	mutex_lock(&sc->mutex);
 
+	if (config_enabled(CONFIG_ATH9K_TX99)) {
+		if (sc->nvifs >= 1) {
+			mutex_unlock(&sc->mutex);
+			return -EOPNOTSUPP;
+		}
+		sc->tx99_vif = vif;
+	}
+
 	ath_dbg(common, CONFIG, "Attach a VIF of type: %d\n", vif->type);
 	sc->nvifs++;
 
@@ -1075,9 +1083,15 @@ static int ath9k_change_interface(struct ieee80211_hw *hw,
 	struct ath_softc *sc = hw->priv;
 	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
 
-	ath_dbg(common, CONFIG, "Change Interface\n");
 	mutex_lock(&sc->mutex);
 
+	if (config_enabled(CONFIG_ATH9K_TX99)) {
+		mutex_unlock(&sc->mutex);
+		return -EOPNOTSUPP;
+	}
+
+	ath_dbg(common, CONFIG, "Change Interface\n");
+
 	if (ath9k_uses_beacons(vif->type))
 		ath9k_beacon_remove_slot(sc, vif);
 
@@ -1107,6 +1121,7 @@ static void ath9k_remove_interface(struct ieee80211_hw *hw,
 	mutex_lock(&sc->mutex);
 
 	sc->nvifs--;
+	sc->tx99_vif = NULL;
 
 	if (ath9k_uses_beacons(vif->type))
 		ath9k_beacon_remove_slot(sc, vif);
@@ -1128,6 +1143,9 @@ static void ath9k_enable_ps(struct ath_softc *sc)
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_common *common = ath9k_hw_common(ah);
 
+	if (config_enabled(CONFIG_ATH9K_TX99))
+		return;
+
 	sc->ps_enabled = true;
 	if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
 		if ((ah->imask & ATH9K_INT_TIM_TIMER) == 0) {
@@ -1144,6 +1162,9 @@ static void ath9k_disable_ps(struct ath_softc *sc)
 	struct ath_hw *ah = sc->sc_ah;
 	struct ath_common *common = ath9k_hw_common(ah);
 
+	if (config_enabled(CONFIG_ATH9K_TX99))
+		return;
+
 	sc->ps_enabled = false;
 	ath9k_hw_setpower(ah, ATH9K_PM_AWAKE);
 	if (!(ah->caps.hw_caps & ATH9K_HW_CAP_AUTOSLEEP)) {
@@ -1167,6 +1188,9 @@ void ath9k_spectral_scan_trigger(struct ieee80211_hw *hw)
 	struct ath_common *common = ath9k_hw_common(ah);
 	u32 rxfilter;
 
+	if (config_enabled(CONFIG_ATH9K_TX99))
+		return;
+
 	if (!ath9k_hw_ops(ah)->spectral_scan_trigger) {
 		ath_err(common, "spectrum analyzer not implemented on this hardware\n");
 		return;
@@ -1746,6 +1770,9 @@ static int ath9k_get_survey(struct ieee80211_hw *hw, int idx,
 	unsigned long flags;
 	int pos;
 
+	if (config_enabled(CONFIG_ATH9K_TX99))
+		return -EOPNOTSUPP;
+
 	spin_lock_irqsave(&common->cc_lock, flags);
 	if (idx == 0)
 		ath_update_survey_stats(sc);
@@ -1778,6 +1805,9 @@ static void ath9k_set_coverage_class(struct ieee80211_hw *hw, u8 coverage_class)
 	struct ath_softc *sc = hw->priv;
 	struct ath_hw *ah = sc->sc_ah;
 
+	if (config_enabled(CONFIG_ATH9K_TX99))
+		return;
+
 	mutex_lock(&sc->mutex);
 	ah->coverage_class = coverage_class;
 
@@ -2344,6 +2374,134 @@ static void ath9k_channel_switch_beacon(struct ieee80211_hw *hw,
 	sc->csa_vif = vif;
 }
 
+static void ath9k_tx99_stop(struct ath_softc *sc)
+{
+	struct ath_hw *ah = sc->sc_ah;
+	struct ath_common *common = ath9k_hw_common(ah);
+
+	ath_drain_all_txq(sc);
+	ath_startrecv(sc);
+
+	ath9k_hw_set_interrupts(ah);
+	ath9k_hw_enable_interrupts(ah);
+
+	ieee80211_wake_queues(sc->hw);
+
+	kfree_skb(sc->tx99_skb);
+	sc->tx99_skb = NULL;
+	sc->tx99_state = false;
+
+	ath9k_hw_tx99_stop(sc->sc_ah);
+	ath_dbg(common, XMIT, "TX99 stopped\n");
+}
+
+static struct sk_buff *ath9k_build_tx99_skb(struct ath_softc *sc)
+{
+	static u8 PN9Data[] = {0xff, 0x87, 0xb8, 0x59, 0xb7, 0xa1, 0xcc, 0x24,
+			       0x57, 0x5e, 0x4b, 0x9c, 0x0e, 0xe9, 0xea, 0x50,
+			       0x2a, 0xbe, 0xb4, 0x1b, 0xb6, 0xb0, 0x5d, 0xf1,
+			       0xe6, 0x9a, 0xe3, 0x45, 0xfd, 0x2c, 0x53, 0x18,
+			       0x0c, 0xca, 0xc9, 0xfb, 0x49, 0x37, 0xe5, 0xa8,
+			       0x51, 0x3b, 0x2f, 0x61, 0xaa, 0x72, 0x18, 0x84,
+			       0x02, 0x23, 0x23, 0xab, 0x63, 0x89, 0x51, 0xb3,
+			       0xe7, 0x8b, 0x72, 0x90, 0x4c, 0xe8, 0xfb, 0xc0};
+	u32 len = 1200;
+	struct ieee80211_hw *hw = sc->hw;
+	struct ieee80211_hdr *hdr;
+	struct ieee80211_tx_info *tx_info;
+	struct sk_buff *skb;
+
+	skb = alloc_skb(len, GFP_KERNEL);
+	if (!skb)
+		return NULL;
+
+	skb_put(skb, len);
+
+	memset(skb->data, 0, len);
+
+	hdr = (struct ieee80211_hdr *)skb->data;
+	hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA);
+	hdr->duration_id = 0;
+
+	memcpy(hdr->addr1, hw->wiphy->perm_addr, ETH_ALEN);
+	memcpy(hdr->addr2, hw->wiphy->perm_addr, ETH_ALEN);
+	memcpy(hdr->addr3, hw->wiphy->perm_addr, ETH_ALEN);
+
+	hdr->seq_ctrl |= cpu_to_le16(sc->tx.seq_no);
+
+	tx_info = IEEE80211_SKB_CB(skb);
+	memset(tx_info, 0, sizeof(*tx_info));
+	tx_info->band = hw->conf.chandef.chan->band;
+	tx_info->flags = IEEE80211_TX_CTL_NO_ACK;
+	tx_info->control.vif = sc->tx99_vif;
+
+	memcpy(skb->data + sizeof(*hdr), PN9Data, sizeof(PN9Data));
+
+	return skb;
+}
+
+void ath9k_tx99_deinit(struct ath_softc *sc)
+{
+	ath_reset(sc);
+
+	ath9k_ps_wakeup(sc);
+	ath9k_tx99_stop(sc);
+	ath9k_ps_restore(sc);
+}
+
+int ath9k_tx99_init(struct ath_softc *sc)
+{
+	struct ieee80211_hw *hw = sc->hw;
+	struct ath_hw *ah = sc->sc_ah;
+	struct ath_common *common = ath9k_hw_common(ah);
+	struct ath_tx_control txctl;
+	int r;
+
+	if (sc->sc_flags & SC_OP_INVALID) {
+		ath_err(common,
+			"driver is in invalid state unable to use TX99");
+		return -EINVAL;
+	}
+
+	sc->tx99_skb = ath9k_build_tx99_skb(sc);
+	if (!sc->tx99_skb)
+		return -ENOMEM;
+
+	memset(&txctl, 0, sizeof(txctl));
+	txctl.txq = sc->tx.txq_map[IEEE80211_AC_VO];
+
+	ath_reset(sc);
+
+	ath9k_ps_wakeup(sc);
+
+	ath9k_hw_disable_interrupts(ah);
+	atomic_set(&ah->intr_ref_cnt, -1);
+	ath_drain_all_txq(sc);
+	ath_stoprecv(sc);
+
+	sc->tx99_state = true;
+
+	ieee80211_stop_queues(hw);
+
+	if (sc->tx99_power == MAX_RATE_POWER + 1)
+		sc->tx99_power = MAX_RATE_POWER;
+
+	ath9k_hw_tx99_set_txpower(ah, sc->tx99_power);
+	r = ath9k_tx99_send(sc, sc->tx99_skb, &txctl);
+	if (r) {
+		ath_dbg(common, XMIT, "Failed to xmit TX99 skb\n");
+		return r;
+	}
+
+	ath_dbg(common, XMIT, "TX99 xmit started using %d ( %ddBm)\n",
+		sc->tx99_power,
+		sc->tx99_power / 2);
+
+	/* We leave the harware awake as it will be chugging on */
+
+	return 0;
+}
+
 struct ieee80211_ops ath9k_ops = {
 	.tx 		    = ath9k_tx,
 	.start 		    = ath9k_start,
diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c
index e37559a85bf6..b1e74683b8dc 100644
--- a/drivers/net/wireless/ath/ath9k/recv.c
+++ b/drivers/net/wireless/ath/ath9k/recv.c
@@ -375,6 +375,9 @@ u32 ath_calcrxfilter(struct ath_softc *sc)
 {
 	u32 rfilt;
 
+	if (config_enabled(CONFIG_ATH9K_TX99))
+		return 0;
+
 	rfilt = ATH9K_RX_FILTER_UCAST | ATH9K_RX_FILTER_BCAST
 		| ATH9K_RX_FILTER_MCAST;
 
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 6bcf62fd3da8..bea5caa11d4a 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1240,12 +1240,13 @@ static void ath_tx_fill_desc(struct ath_softc *sc, struct ath_buf *bf,
 		if (bf->bf_next)
 			info.link = bf->bf_next->bf_daddr;
 		else
-			info.link = 0;
+			info.link = (sc->tx99_state) ? bf->bf_daddr : 0;
 
 		if (!bf_first) {
 			bf_first = bf;
 
-			info.flags = ATH9K_TXDESC_INTREQ;
+			if (!sc->tx99_state)
+				info.flags = ATH9K_TXDESC_INTREQ;
 			if ((tx_info->flags & IEEE80211_TX_CTL_CLEAR_PS_FILT) ||
 			    txq == sc->tx.uapsdq)
 				info.flags |= ATH9K_TXDESC_CLRDMASK;
@@ -1932,7 +1933,7 @@ static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,
 			txq->axq_qnum, ito64(bf->bf_daddr), bf->bf_desc);
 	}
 
-	if (!edma) {
+	if (!edma || sc->tx99_state) {
 		TX_STAT_INC(txq->axq_qnum, txstart);
 		ath9k_hw_txstart(ah, txq->axq_qnum);
 	}
@@ -2360,6 +2361,8 @@ static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf,
 
 	dma_unmap_single(sc->dev, bf->bf_buf_addr, skb->len, DMA_TO_DEVICE);
 	bf->bf_buf_addr = 0;
+	if (sc->tx99_state)
+		goto skip_tx_complete;
 
 	if (bf->bf_state.bfs_paprd) {
 		if (time_after(jiffies,
@@ -2372,6 +2375,7 @@ static void ath_tx_complete_buf(struct ath_softc *sc, struct ath_buf *bf,
 		ath_debug_stat_tx(sc, bf, ts, txq, tx_flags);
 		ath_tx_complete(sc, skb, tx_flags, txq);
 	}
+skip_tx_complete:
 	/* At this point, skb (bf->bf_mpdu) is consumed...make sure we don't
 	 * accidentally reference it later.
 	 */
@@ -2730,3 +2734,46 @@ void ath_tx_node_cleanup(struct ath_softc *sc, struct ath_node *an)
 		ath_txq_unlock(sc, txq);
 	}
 }
+
+int ath9k_tx99_send(struct ath_softc *sc, struct sk_buff *skb,
+		    struct ath_tx_control *txctl)
+{
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+	struct ath_frame_info *fi = get_frame_info(skb);
+	struct ath_common *common = ath9k_hw_common(sc->sc_ah);
+	struct ath_buf *bf;
+	int padpos, padsize;
+
+	padpos = ieee80211_hdrlen(hdr->frame_control);
+	padsize = padpos & 3;
+
+	if (padsize && skb->len > padpos) {
+		if (skb_headroom(skb) < padsize) {
+			ath_dbg(common, XMIT,
+				"tx99 padding failed\n");
+		return -EINVAL;
+		}
+
+		skb_push(skb, padsize);
+		memmove(skb->data, skb->data + padsize, padpos);
+	}
+
+	fi->keyix = ATH9K_TXKEYIX_INVALID;
+	fi->framelen = skb->len + FCS_LEN;
+	fi->keytype = ATH9K_KEY_TYPE_CLEAR;
+
+	bf = ath_tx_setup_buffer(sc, txctl->txq, NULL, skb);
+	if (!bf) {
+		ath_dbg(common, XMIT, "tx99 buffer setup failed\n");
+		return -EINVAL;
+	}
+
+	ath_set_rates(sc->tx99_vif, NULL, bf);
+
+	ath9k_hw_set_desc_link(sc->sc_ah, bf->bf_desc, bf->bf_daddr);
+	ath9k_hw_tx99_start(sc->sc_ah, txctl->txq->axq_qnum);
+
+	ath_tx_send_normal(sc, txctl->txq, NULL, skb);
+
+	return 0;
+}
-- 
cgit 


From b4caee6a4a9cc7561b2f40f10ce5399d43570d9c Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Tue, 15 Oct 2013 15:44:46 +0200
Subject: brcmfmac: store address in trace_brcmf_hexdump()

The trace function trace_brcmf_hexdump() stores the length, but
having the address of the buffer being dumped helps putting it
in context.

Reviewed-by: Franky Lin <frankyl@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h b/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h
index bc2917112899..4605a1dd6366 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h
@@ -78,13 +78,15 @@ TRACE_EVENT(brcmf_hexdump,
 	TP_ARGS(data, len),
 	TP_STRUCT__entry(
 		__field(unsigned long, len)
+		__field(unsigned long, addr)
 		__dynamic_array(u8, hdata, len)
 	),
 	TP_fast_assign(
 		__entry->len = len;
+		__entry->addr = (unsigned long)data;
 		memcpy(__get_dynamic_array(hdata), data, len);
 	),
-	TP_printk("hexdump [length=%lu]", __entry->len)
+	TP_printk("hexdump [addr=%lx, length=%lu]", __entry->addr, __entry->len)
 );
 
 TRACE_EVENT(brcmf_bdchdr,
-- 
cgit 


From 76584ece258dd71066b536fe8636e64537d21011 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Tue, 15 Oct 2013 15:44:47 +0200
Subject: brcmfmac: add tracepoint for capturing the SDPCM header

Having the SDPCM header information in the traces is a valuable
piece of information.

Reviewed-by: Franky Lin <frankyl@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c   |  3 +++
 drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h | 17 +++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
index 67f05db4b9b8..ab1c919f7b08 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
@@ -1147,6 +1147,8 @@ static int brcmf_sdio_hdparse(struct brcmf_sdio *bus, u8 *header,
 	u8 rx_seq, fc, tx_seq_max;
 	u32 swheader;
 
+	trace_brcmf_sdpcm_hdr(false, header);
+
 	/* hw header */
 	len = get_unaligned_le16(header);
 	checksum = get_unaligned_le16(header + sizeof(u16));
@@ -1269,6 +1271,7 @@ static void brcmf_sdio_hdpack(struct brcmf_sdio *bus, u8 *header,
 		     SDPCM_DOFFSET_MASK;
 	*(((__le32 *)header) + 1) = cpu_to_le32(sw_header);
 	*(((__le32 *)header) + 2) = 0;
+	trace_brcmf_sdpcm_hdr(true, header);
 }
 
 static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq)
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h b/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h
index 4605a1dd6366..3c67529b9074 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/tracepoint.h
@@ -110,6 +110,23 @@ TRACE_EVENT(brcmf_bdchdr,
 	TP_printk("bdc: prio=%d siglen=%d", __entry->prio, __entry->siglen)
 );
 
+TRACE_EVENT(brcmf_sdpcm_hdr,
+	TP_PROTO(bool tx, void *data),
+	TP_ARGS(tx, data),
+	TP_STRUCT__entry(
+		__field(u8, tx)
+		__field(u16, len)
+		__array(u8, hdr, 12)
+	),
+	TP_fast_assign(
+		memcpy(__entry->hdr, data, 12);
+		__entry->len = __entry->hdr[0] | (__entry->hdr[1] << 8);
+		__entry->tx = tx ? 1 : 0;
+	),
+	TP_printk("sdpcm: %s len %u, seq %d", __entry->tx ? "TX" : "RX",
+		  __entry->len, __entry->hdr[4])
+);
+
 #ifdef CONFIG_BRCM_TRACING
 
 #undef TRACE_INCLUDE_PATH
-- 
cgit 


From 3f782744f99773889ad698eb3ea8f6bfb2d254d2 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Tue, 15 Oct 2013 15:44:48 +0200
Subject: brcmfmac: rename variable max_seg_sz to max_seg_cnt for clarity

The variable max_seg_sz in brcmf_sdio_buffrw() respresents the maximum
number of buffers that can be sent in one MMC transfer request. Rename
it to max_seg_cnt to avoid confusion.

Reviewed-by: Franky Lin <frankyl@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index e13b1a65c65f..5dfc96cea364 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -332,7 +332,7 @@ static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
 {
 	unsigned int req_sz, func_blk_sz, sg_cnt, sg_data_sz, pkt_offset;
 	unsigned int max_blks, max_req_sz, orig_offset, dst_offset;
-	unsigned short max_seg_sz, seg_sz;
+	unsigned short max_seg_cnt, seg_sz;
 	unsigned char *pkt_data, *orig_data, *dst_data;
 	struct sk_buff *pkt_next = NULL, *local_pkt_next;
 	struct sk_buff_head local_list, *target_list;
@@ -406,13 +406,14 @@ static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
 	max_blks = min_t(unsigned int, host->max_blk_count, 511u);
 	max_req_sz = min_t(unsigned int, host->max_req_size,
 			   max_blks * func_blk_sz);
-	max_seg_sz = min_t(unsigned short, host->max_segs, SG_MAX_SINGLE_ALLOC);
-	max_seg_sz = min_t(unsigned short, max_seg_sz, target_list->qlen);
+	max_seg_cnt = min_t(unsigned short, host->max_segs,
+			    SG_MAX_SINGLE_ALLOC);
+	max_seg_cnt = min_t(unsigned short, max_seg_cnt, target_list->qlen);
 	seg_sz = target_list->qlen;
 	pkt_offset = 0;
 	pkt_next = target_list->next;
 
-	if (sg_alloc_table(&st, max_seg_sz, GFP_KERNEL)) {
+	if (sg_alloc_table(&st, max_seg_cnt, GFP_KERNEL)) {
 		ret = -ENOMEM;
 		goto exit;
 	}
@@ -444,7 +445,7 @@ static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
 				pkt_next = pkt_next->next;
 			}
 
-			if (req_sz >= max_req_sz || sg_cnt >= max_seg_sz)
+			if (req_sz >= max_req_sz || sg_cnt >= max_seg_cnt)
 				break;
 		}
 		seg_sz -= sg_cnt;
-- 
cgit 


From 71201496cf1c83c2f20b03d4cd8f3f5ea7c6e85a Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Tue, 15 Oct 2013 15:44:49 +0200
Subject: brcmfmac: determine host controller related variables during probe

Instead of determining the limits for scatter-gather MMC transfer
request upon each transmit it is now determined during the probe
of the SDIO function.

Reviewed-by: Franky Lin <frankyl@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c   | 23 +++++++---------------
 .../net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c | 17 ++++++++++++++++
 .../net/wireless/brcm80211/brcmfmac/sdio_host.h    |  4 ++++
 3 files changed, 28 insertions(+), 16 deletions(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index 5dfc96cea364..8c4b506e25bb 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -26,7 +26,6 @@
 #include <linux/mmc/sdio.h>
 #include <linux/mmc/sdio_func.h>
 #include <linux/mmc/card.h>
-#include <linux/mmc/host.h>
 #include <linux/platform_data/brcmfmac-sdio.h>
 
 #include <defs.h>
@@ -331,7 +330,7 @@ static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
 			     bool write, u32 addr, struct sk_buff_head *pktlist)
 {
 	unsigned int req_sz, func_blk_sz, sg_cnt, sg_data_sz, pkt_offset;
-	unsigned int max_blks, max_req_sz, orig_offset, dst_offset;
+	unsigned int max_req_sz, orig_offset, dst_offset;
 	unsigned short max_seg_cnt, seg_sz;
 	unsigned char *pkt_data, *orig_data, *dst_data;
 	struct sk_buff *pkt_next = NULL, *local_pkt_next;
@@ -341,7 +340,6 @@ static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
 	struct mmc_data mmc_dat;
 	struct sg_table st;
 	struct scatterlist *sgl;
-	struct mmc_host *host;
 	int ret = 0;
 
 	if (!pktlist->qlen)
@@ -398,17 +396,10 @@ static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
 		target_list = &local_list;
 	}
 
-	host = sdiodev->func[fn]->card->host;
 	func_blk_sz = sdiodev->func[fn]->cur_blksize;
-	/* Blocks per command is limited by host count, host transfer
-	 * size and the maximum for IO_RW_EXTENDED of 511 blocks.
-	 */
-	max_blks = min_t(unsigned int, host->max_blk_count, 511u);
-	max_req_sz = min_t(unsigned int, host->max_req_size,
-			   max_blks * func_blk_sz);
-	max_seg_cnt = min_t(unsigned short, host->max_segs,
-			    SG_MAX_SINGLE_ALLOC);
-	max_seg_cnt = min_t(unsigned short, max_seg_cnt, target_list->qlen);
+	max_req_sz = sdiodev->max_request_size;
+	max_seg_cnt = min_t(unsigned short, sdiodev->max_segment_count,
+			    target_list->qlen);
 	seg_sz = target_list->qlen;
 	pkt_offset = 0;
 	pkt_next = target_list->next;
@@ -429,8 +420,8 @@ static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
 		while (pkt_next != (struct sk_buff *)target_list) {
 			pkt_data = pkt_next->data + pkt_offset;
 			sg_data_sz = pkt_next->len - pkt_offset;
-			if (sg_data_sz > host->max_seg_size)
-				sg_data_sz = host->max_seg_size;
+			if (sg_data_sz > sdiodev->max_segment_size)
+				sg_data_sz = sdiodev->max_segment_size;
 			if (sg_data_sz > max_req_sz - req_sz)
 				sg_data_sz = max_req_sz - req_sz;
 
@@ -476,7 +467,7 @@ static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
 			addr += req_sz;
 
 		mmc_set_data_timeout(&mmc_dat, sdiodev->func[fn]->card);
-		mmc_wait_for_req(host, &mmc_req);
+		mmc_wait_for_req(sdiodev->func[fn]->card->host, &mmc_req);
 
 		ret = mmc_cmd.error ? mmc_cmd.error : mmc_dat.error;
 		if (ret != 0) {
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
index 091c905871cc..c768ec2d473d 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh_sdmmc.c
@@ -21,6 +21,7 @@
 #include <linux/mmc/sdio_func.h>
 #include <linux/mmc/sdio_ids.h>
 #include <linux/mmc/card.h>
+#include <linux/mmc/host.h>
 #include <linux/suspend.h>
 #include <linux/errno.h>
 #include <linux/sched.h>	/* request_irq() */
@@ -315,6 +316,8 @@ static int brcmf_ops_sdio_probe(struct sdio_func *func,
 	int err;
 	struct brcmf_sdio_dev *sdiodev;
 	struct brcmf_bus *bus_if;
+	struct mmc_host *host;
+	uint max_blocks;
 
 	brcmf_dbg(SDIO, "Enter\n");
 	brcmf_dbg(SDIO, "Class=%x\n", func->class);
@@ -361,6 +364,20 @@ static int brcmf_ops_sdio_probe(struct sdio_func *func,
 		brcmf_err("F2 error, probe failed %d...\n", err);
 		goto fail;
 	}
+
+	/*
+	 * determine host related variables after brcmf_sdio_probe()
+	 * as func->cur_blksize is properly set and F2 init has been
+	 * completed successfully.
+	 */
+	host = func->card->host;
+	sdiodev->sg_support = host->max_segs > 1;
+	max_blocks = min_t(uint, host->max_blk_count, 511u);
+	sdiodev->max_request_size = min_t(uint, host->max_req_size,
+					  max_blocks * func->cur_blksize);
+	sdiodev->max_segment_count = min_t(uint, host->max_segs,
+					   SG_MAX_SINGLE_ALLOC);
+	sdiodev->max_segment_size = host->max_seg_size;
 	brcmf_dbg(SDIO, "F2 init completed...\n");
 	return 0;
 
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
index 2b5407f002e5..59c456f7eb12 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
@@ -178,6 +178,10 @@ struct brcmf_sdio_dev {
 	bool irq_en;			/* irq enable flags */
 	spinlock_t irq_en_lock;
 	bool irq_wake;			/* irq wake enable flags */
+	bool sg_support;
+	uint max_request_size;
+	ushort max_segment_count;
+	uint max_segment_size;
 };
 
 /* Register/deregister interrupt handler. */
-- 
cgit 


From 7f9a8dc8176fdfd5c036d7f9676a9e24815d675f Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Tue, 15 Oct 2013 15:44:50 +0200
Subject: brcmfmac: rework scatter-gather code in brcmf_sdio_buffrw()

Moving a number of assignments outside of the loop as they are
the same for each request.

Reviewed-by: Franky Lin <frankyl@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c | 34 +++++++++++++-----------
 1 file changed, 19 insertions(+), 15 deletions(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index 8c4b506e25bb..ea716a4590d3 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -409,12 +409,26 @@ static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
 		goto exit;
 	}
 
+	memset(&mmc_req, 0, sizeof(struct mmc_request));
+	memset(&mmc_cmd, 0, sizeof(struct mmc_command));
+	memset(&mmc_dat, 0, sizeof(struct mmc_data));
+
+	mmc_dat.sg = st.sgl;
+	mmc_dat.blksz = func_blk_sz;
+	mmc_dat.flags = write ? MMC_DATA_WRITE : MMC_DATA_READ;
+	mmc_cmd.opcode = SD_IO_RW_EXTENDED;
+	mmc_cmd.arg = write ? 1<<31 : 0;	/* write flag  */
+	mmc_cmd.arg |= (fn & 0x7) << 28;	/* SDIO func num */
+	mmc_cmd.arg |= 1<<27;			/* block mode */
+	/* for function 1 the addr will be incremented */
+	mmc_cmd.arg |= (fn == 1) ? 1<<26 : 0;
+	mmc_cmd.flags = MMC_RSP_SPI_R5 | MMC_RSP_R5 | MMC_CMD_ADTC;
+	mmc_req.cmd = &mmc_cmd;
+	mmc_req.data = &mmc_dat;
+
 	while (seg_sz) {
 		req_sz = 0;
 		sg_cnt = 0;
-		memset(&mmc_req, 0, sizeof(struct mmc_request));
-		memset(&mmc_cmd, 0, sizeof(struct mmc_command));
-		memset(&mmc_dat, 0, sizeof(struct mmc_data));
 		sgl = st.sgl;
 		/* prep sg table */
 		while (pkt_next != (struct sk_buff *)target_list) {
@@ -447,22 +461,12 @@ static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
 			ret = -ENOTBLK;
 			goto exit;
 		}
-		mmc_dat.sg = st.sgl;
+
 		mmc_dat.sg_len = sg_cnt;
-		mmc_dat.blksz = func_blk_sz;
 		mmc_dat.blocks = req_sz / func_blk_sz;
-		mmc_dat.flags = write ? MMC_DATA_WRITE : MMC_DATA_READ;
-		mmc_cmd.opcode = SD_IO_RW_EXTENDED;
-		mmc_cmd.arg = write ? 1<<31 : 0;	/* write flag  */
-		mmc_cmd.arg |= (fn & 0x7) << 28;	/* SDIO func num */
-		mmc_cmd.arg |= 1<<27;			/* block mode */
-		/* incrementing addr for function 1 */
-		mmc_cmd.arg |= (fn == 1) ? 1<<26 : 0;
 		mmc_cmd.arg |= (addr & 0x1FFFF) << 9;	/* address */
 		mmc_cmd.arg |= mmc_dat.blocks & 0x1FF;	/* block count */
-		mmc_cmd.flags = MMC_RSP_SPI_R5 | MMC_RSP_R5 | MMC_CMD_ADTC;
-		mmc_req.cmd = &mmc_cmd;
-		mmc_req.data = &mmc_dat;
+		/* incrementing addr for function 1 */
 		if (fn == 1)
 			addr += req_sz;
 
-- 
cgit 


From 0d7d98216d390ce8beb602b1a20464c8a5e6c2e0 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Tue, 15 Oct 2013 15:44:51 +0200
Subject: brcmfmac: rename brcmf_sdio_buffrw()

The function brcmf_sdio_buffrw() is intended to be used for
transfering list of packets using scatter-gather functionality.
Rename function to brcmf_sdio_sglist_rw() to clarify this.

Reviewed-by: Franky Lin <frankyl@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index ea716a4590d3..344b2d2b1863 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -315,7 +315,7 @@ void brcmf_sdio_regwl(struct brcmf_sdio_dev *sdiodev, u32 addr,
 }
 
 /**
- * brcmf_sdio_buffrw - SDIO interface function for block data access
+ * brcmf_sdio_sglist_rw - SDIO interface function for block data access
  * @sdiodev: brcmfmac sdio device
  * @fn: SDIO function number
  * @write: direction flag
@@ -326,8 +326,9 @@ void brcmf_sdio_regwl(struct brcmf_sdio_dev *sdiodev, u32 addr,
  * stack for block data access. It assumes that the skb passed down by the
  * caller has already been padded and aligned.
  */
-static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
-			     bool write, u32 addr, struct sk_buff_head *pktlist)
+static int brcmf_sdio_sglist_rw(struct brcmf_sdio_dev *sdiodev, uint fn,
+				bool write, u32 addr,
+				struct sk_buff_head *pktlist)
 {
 	unsigned int req_sz, func_blk_sz, sg_cnt, sg_data_sz, pkt_offset;
 	unsigned int max_req_sz, orig_offset, dst_offset;
@@ -554,7 +555,7 @@ brcmf_sdcard_recv_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 
 	skb_queue_head_init(&pkt_list);
 	skb_queue_tail(&pkt_list, pkt);
-	err = brcmf_sdio_buffrw(sdiodev, fn, false, addr, &pkt_list);
+	err = brcmf_sdio_sglist_rw(sdiodev, fn, false, addr, &pkt_list);
 	skb_dequeue_tail(&pkt_list);
 
 done:
@@ -577,7 +578,7 @@ int brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 		goto done;
 
 	incr_fix = (flags & SDIO_REQ_FIXED) ? SDIOH_DATA_FIX : SDIOH_DATA_INC;
-	err = brcmf_sdio_buffrw(sdiodev, fn, false, addr, pktq);
+	err = brcmf_sdio_sglist_rw(sdiodev, fn, false, addr, pktq);
 
 done:
 	return err;
@@ -622,7 +623,7 @@ brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 	width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
 	brcmf_sdio_addrprep(sdiodev, width, &addr);
 
-	err = brcmf_sdio_buffrw(sdiodev, fn, true, addr, pktq);
+	err = brcmf_sdio_sglist_rw(sdiodev, fn, true, addr, pktq);
 
 	return err;
 }
@@ -673,8 +674,8 @@ brcmf_sdio_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address,
 		if (write)
 			memcpy(pkt->data, data, dsize);
 		skb_queue_tail(&pkt_list, pkt);
-		bcmerror = brcmf_sdio_buffrw(sdiodev, SDIO_FUNC_1, write,
-					     sdaddr, &pkt_list);
+		bcmerror = brcmf_sdio_sglist_rw(sdiodev, SDIO_FUNC_1, write,
+						sdaddr, &pkt_list);
 		skb_dequeue_tail(&pkt_list);
 		if (bcmerror) {
 			brcmf_err("membytes transfer failed\n");
-- 
cgit 


From 4aef267e24b89baedfd3e01c38bafc47aa976946 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Tue, 15 Oct 2013 15:44:52 +0200
Subject: brcmfmac: rework single packet transfers

The function brcmf_sdio_sglist_rw() does a different code path
when packet queue length is 1. Move this to a separate function
reducing overhead in the calling context.

Reviewed-by: Franky Lin <frankyl@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c | 81 ++++++++++++------------
 1 file changed, 40 insertions(+), 41 deletions(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index 344b2d2b1863..da0281625e9e 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -314,6 +314,34 @@ void brcmf_sdio_regwl(struct brcmf_sdio_dev *sdiodev, u32 addr,
 		*ret = retval;
 }
 
+static int brcmf_sdio_buffrw(struct brcmf_sdio_dev *sdiodev, uint fn,
+			     bool write, u32 addr, struct sk_buff *pkt)
+{
+	unsigned int req_sz;
+
+	brcmf_pm_resume_wait(sdiodev, &sdiodev->request_buffer_wait);
+	if (brcmf_pm_resume_error(sdiodev))
+		return -EIO;
+
+	/* Single skb use the standard mmc interface */
+	req_sz = pkt->len + 3;
+	req_sz &= (uint)~3;
+
+	if (write)
+		return sdio_memcpy_toio(sdiodev->func[fn], addr,
+					((u8 *)(pkt->data)),
+					req_sz);
+	else if (fn == 1)
+		return sdio_memcpy_fromio(sdiodev->func[fn],
+					  ((u8 *)(pkt->data)),
+					  addr, req_sz);
+	else
+		/* function 2 read is FIFO operation */
+		return sdio_readsb(sdiodev->func[fn],
+				   ((u8 *)(pkt->data)), addr,
+				   req_sz);
+}
+
 /**
  * brcmf_sdio_sglist_rw - SDIO interface function for block data access
  * @sdiodev: brcmfmac sdio device
@@ -350,27 +378,6 @@ static int brcmf_sdio_sglist_rw(struct brcmf_sdio_dev *sdiodev, uint fn,
 	if (brcmf_pm_resume_error(sdiodev))
 		return -EIO;
 
-	/* Single skb use the standard mmc interface */
-	if (pktlist->qlen == 1) {
-		pkt_next = pktlist->next;
-		req_sz = pkt_next->len + 3;
-		req_sz &= (uint)~3;
-
-		if (write)
-			return sdio_memcpy_toio(sdiodev->func[fn], addr,
-						((u8 *)(pkt_next->data)),
-						req_sz);
-		else if (fn == 1)
-			return sdio_memcpy_fromio(sdiodev->func[fn],
-						  ((u8 *)(pkt_next->data)),
-						  addr, req_sz);
-		else
-			/* function 2 read is FIFO operation */
-			return sdio_readsb(sdiodev->func[fn],
-					   ((u8 *)(pkt_next->data)), addr,
-					   req_sz);
-	}
-
 	target_list = pktlist;
 	/* for host with broken sg support, prepare a page aligned list */
 	__skb_queue_head_init(&local_list);
@@ -543,7 +550,6 @@ brcmf_sdcard_recv_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 {
 	uint width;
 	int err = 0;
-	struct sk_buff_head pkt_list;
 
 	brcmf_dbg(SDIO, "fun = %d, addr = 0x%x, size = %d\n",
 		  fn, addr, pkt->len);
@@ -553,10 +559,7 @@ brcmf_sdcard_recv_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 	if (err)
 		goto done;
 
-	skb_queue_head_init(&pkt_list);
-	skb_queue_tail(&pkt_list, pkt);
-	err = brcmf_sdio_sglist_rw(sdiodev, fn, false, addr, &pkt_list);
-	skb_dequeue_tail(&pkt_list);
+	err = brcmf_sdio_buffrw(sdiodev, fn, false, addr, pkt);
 
 done:
 	return err;
@@ -589,7 +592,7 @@ brcmf_sdcard_send_buf(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 		      uint flags, u8 *buf, uint nbytes)
 {
 	struct sk_buff *mypkt;
-	struct sk_buff_head pktq;
+	uint width;
 	int err;
 
 	mypkt = brcmu_pkt_buf_get_skb(nbytes);
@@ -600,10 +603,11 @@ brcmf_sdcard_send_buf(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 	}
 
 	memcpy(mypkt->data, buf, nbytes);
-	__skb_queue_head_init(&pktq);
-	__skb_queue_tail(&pktq, mypkt);
-	err = brcmf_sdcard_send_pkt(sdiodev, addr, fn, flags, &pktq);
-	__skb_dequeue_tail(&pktq);
+
+	width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
+	brcmf_sdio_addrprep(sdiodev, width, &addr);
+
+	err = brcmf_sdio_buffrw(sdiodev, fn, true, addr, mypkt);
 
 	brcmu_pkt_buf_free_skb(mypkt);
 	return err;
@@ -615,7 +619,6 @@ brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 		      uint flags, struct sk_buff_head *pktq)
 {
 	uint width;
-	int err = 0;
 
 	brcmf_dbg(SDIO, "fun = %d, addr = 0x%x, size = %d\n",
 		  fn, addr, pktq->qlen);
@@ -623,9 +626,9 @@ brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 	width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
 	brcmf_sdio_addrprep(sdiodev, width, &addr);
 
-	err = brcmf_sdio_sglist_rw(sdiodev, fn, true, addr, pktq);
-
-	return err;
+	if (pktq->qlen == 1)
+		return brcmf_sdio_buffrw(sdiodev, fn, true, addr, pktq->next);
+	return brcmf_sdio_sglist_rw(sdiodev, fn, true, addr, pktq);
 }
 
 int
@@ -636,7 +639,6 @@ brcmf_sdio_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address,
 	struct sk_buff *pkt;
 	u32 sdaddr;
 	uint dsize;
-	struct sk_buff_head pkt_list;
 
 	dsize = min_t(uint, SBSDIO_SB_OFT_ADDR_LIMIT, size);
 	pkt = dev_alloc_skb(dsize);
@@ -645,7 +647,6 @@ brcmf_sdio_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address,
 		return -EIO;
 	}
 	pkt->priority = 0;
-	skb_queue_head_init(&pkt_list);
 
 	/* Determine initial transfer parameters */
 	sdaddr = address & SBSDIO_SB_OFT_ADDR_MASK;
@@ -673,10 +674,8 @@ brcmf_sdio_ramrw(struct brcmf_sdio_dev *sdiodev, bool write, u32 address,
 		skb_put(pkt, dsize);
 		if (write)
 			memcpy(pkt->data, data, dsize);
-		skb_queue_tail(&pkt_list, pkt);
-		bcmerror = brcmf_sdio_sglist_rw(sdiodev, SDIO_FUNC_1, write,
-						sdaddr, &pkt_list);
-		skb_dequeue_tail(&pkt_list);
+		bcmerror = brcmf_sdio_buffrw(sdiodev, SDIO_FUNC_1, write,
+					     sdaddr, pkt);
 		if (bcmerror) {
 			brcmf_err("membytes transfer failed\n");
 			break;
-- 
cgit 


From fcaac2b12e275e9e6d3aa476824291a298c938db Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Tue, 15 Oct 2013 15:44:53 +0200
Subject: brcmfmac: verify result of brcmf_sdio_addrprep() calls

Not all calls to the function brcmf_sdio_addrprep() check
the return value, but it may fail so better verify it.

Reviewed-by: Franky Lin <frankyl@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index da0281625e9e..c88e26703b90 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -238,7 +238,9 @@ brcmf_sdio_regrw_helper(struct brcmf_sdio_dev *sdiodev, u32 addr,
 		func_num = SDIO_FUNC_1;
 		reg_size = 4;
 
-		brcmf_sdio_addrprep(sdiodev, reg_size, &addr);
+		ret = brcmf_sdio_addrprep(sdiodev, reg_size, &addr);
+		if (ret)
+			goto done;
 	}
 
 	do {
@@ -254,6 +256,7 @@ brcmf_sdio_regrw_helper(struct brcmf_sdio_dev *sdiodev, u32 addr,
 						       func_num, addr, data, 4);
 	} while (ret != 0 && retry++ < SDIOH_API_ACCESS_RETRY_LIMIT);
 
+done:
 	if (ret != 0)
 		brcmf_err("failed with %d\n", ret);
 
@@ -605,9 +608,10 @@ brcmf_sdcard_send_buf(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 	memcpy(mypkt->data, buf, nbytes);
 
 	width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
-	brcmf_sdio_addrprep(sdiodev, width, &addr);
+	err = brcmf_sdio_addrprep(sdiodev, width, &addr);
 
-	err = brcmf_sdio_buffrw(sdiodev, fn, true, addr, mypkt);
+	if (!err)
+		err = brcmf_sdio_buffrw(sdiodev, fn, true, addr, mypkt);
 
 	brcmu_pkt_buf_free_skb(mypkt);
 	return err;
@@ -619,12 +623,15 @@ brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 		      uint flags, struct sk_buff_head *pktq)
 {
 	uint width;
+	int err;
 
 	brcmf_dbg(SDIO, "fun = %d, addr = 0x%x, size = %d\n",
 		  fn, addr, pktq->qlen);
 
 	width = (flags & SDIO_REQ_4BYTE) ? 4 : 2;
-	brcmf_sdio_addrprep(sdiodev, width, &addr);
+	err = brcmf_sdio_addrprep(sdiodev, width, &addr);
+	if (err)
+		return err;
 
 	if (pktq->qlen == 1)
 		return brcmf_sdio_buffrw(sdiodev, fn, true, addr, pktq->next);
-- 
cgit 


From 667931e8aad7f2ef2417a458a635db54f512be17 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Tue, 15 Oct 2013 15:44:54 +0200
Subject: brcmfmac: remove stale code from brcmf_sdcard_recv_chain()

The function brcmf_sdcard_recv_chain() has been reworked with
commit "brcmfmac: add sdio sg list support", but the incr_fix
variable is only assigned but not used so removing it now.

Reviewed-by: Franky Lin <frankyl@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index c88e26703b90..92818d790de5 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -571,7 +571,6 @@ done:
 int brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 			    uint flags, struct sk_buff_head *pktq)
 {
-	uint incr_fix;
 	uint width;
 	int err = 0;
 
@@ -583,7 +582,6 @@ int brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 	if (err)
 		goto done;
 
-	incr_fix = (flags & SDIO_REQ_FIXED) ? SDIOH_DATA_FIX : SDIOH_DATA_INC;
 	err = brcmf_sdio_sglist_rw(sdiodev, fn, false, addr, pktq);
 
 done:
-- 
cgit 


From c8cce1f9a714b90ab454e3ac4a9968445e228b81 Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Tue, 15 Oct 2013 15:44:55 +0200
Subject: brcmfmac: fix brcmf_sdcard_send_pkt() for host without sg support

If the host does not support scatter-gather transmit the packets
in the pktq individually using brcmf_sdio_buffrw().

Reviewed-by: Franky Lin <frankyl@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index 92818d790de5..1103dc1cc9dc 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -620,6 +620,7 @@ int
 brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 		      uint flags, struct sk_buff_head *pktq)
 {
+	struct sk_buff *skb;
 	uint width;
 	int err;
 
@@ -631,9 +632,16 @@ brcmf_sdcard_send_pkt(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 	if (err)
 		return err;
 
-	if (pktq->qlen == 1)
-		return brcmf_sdio_buffrw(sdiodev, fn, true, addr, pktq->next);
-	return brcmf_sdio_sglist_rw(sdiodev, fn, true, addr, pktq);
+	if (pktq->qlen == 1 || !sdiodev->sg_support)
+		skb_queue_walk(pktq, skb) {
+			err = brcmf_sdio_buffrw(sdiodev, fn, true, addr, skb);
+			if (err)
+				break;
+		}
+	else
+		err = brcmf_sdio_sglist_rw(sdiodev, fn, true, addr, pktq);
+
+	return err;
 }
 
 int
-- 
cgit 


From a64304f0a2cae8ce9ff71baecbad821613229cfe Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Tue, 15 Oct 2013 15:44:56 +0200
Subject: brcmfmac: fix brcmf_sdio_txpkt_prep() for host without sg support

When running on a host controller that does not support scatter-gather
transfers the function brcmf_sdio_txpkt_prep() should not add tail
padding buffers.

Reviewed-by: Franky Lin <frankyl@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c | 106 +++++++++++++--------
 1 file changed, 64 insertions(+), 42 deletions(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
index ab1c919f7b08..c9277011a1bc 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
@@ -1880,6 +1880,56 @@ brcmf_sdbrcm_wait_event_wakeup(struct brcmf_sdio *bus)
 /* bit mask of data length chopped from the previous packet */
 #define ALIGN_SKB_CHOP_LEN_MASK	0x7fff
 
+static int brcmf_sdio_txpkt_prep_sg(struct brcmf_sdio_dev *sdiodev,
+				    struct sk_buff_head *pktq,
+				    struct sk_buff *pkt, uint chan)
+{
+	struct sk_buff *pkt_pad;
+	u16 tail_pad, tail_chop, sg_align;
+	unsigned int blksize;
+	u8 *dat_buf;
+	int ntail;
+
+	blksize = sdiodev->func[SDIO_FUNC_2]->cur_blksize;
+	sg_align = 4;
+	if (sdiodev->pdata && sdiodev->pdata->sd_sgentry_align > 4)
+		sg_align = sdiodev->pdata->sd_sgentry_align;
+	/* sg entry alignment should be a divisor of block size */
+	WARN_ON(blksize % sg_align);
+
+	/* Check tail padding */
+	pkt_pad = NULL;
+	tail_chop = pkt->len % sg_align;
+	tail_pad = sg_align - tail_chop;
+	tail_pad += blksize - (pkt->len + tail_pad) % blksize;
+	if (skb_tailroom(pkt) < tail_pad && pkt->len > blksize) {
+		pkt_pad = brcmu_pkt_buf_get_skb(tail_pad + tail_chop);
+		if (pkt_pad == NULL)
+			return -ENOMEM;
+		memcpy(pkt_pad->data,
+		       pkt->data + pkt->len - tail_chop,
+		       tail_chop);
+		*(u32 *)(pkt_pad->cb) = ALIGN_SKB_FLAG + tail_chop;
+		skb_trim(pkt, pkt->len - tail_chop);
+		__skb_queue_after(pktq, pkt, pkt_pad);
+	} else {
+		ntail = pkt->data_len + tail_pad -
+			(pkt->end - pkt->tail);
+		if (skb_cloned(pkt) || ntail > 0)
+			if (pskb_expand_head(pkt, 0, ntail, GFP_ATOMIC))
+				return -ENOMEM;
+		if (skb_linearize(pkt))
+			return -ENOMEM;
+		dat_buf = (u8 *)(pkt->data);
+		__skb_put(pkt, tail_pad);
+	}
+
+	if (pkt_pad)
+		return pkt->len + tail_chop;
+	else
+		return pkt->len - tail_pad;
+}
+
 /**
  * brcmf_sdio_txpkt_prep - packet preparation for transmit
  * @bus: brcmf_sdio structure pointer
@@ -1896,24 +1946,16 @@ static int
 brcmf_sdio_txpkt_prep(struct brcmf_sdio *bus, struct sk_buff_head *pktq,
 		      uint chan)
 {
-	u16 head_pad, tail_pad, tail_chop, head_align, sg_align;
-	int ntail;
-	struct sk_buff *pkt_next, *pkt_new;
+	u16 head_pad, head_align;
+	struct sk_buff *pkt_next;
 	u8 *dat_buf;
-	unsigned blksize = bus->sdiodev->func[SDIO_FUNC_2]->cur_blksize;
+	int err;
 	struct brcmf_sdio_hdrinfo hd_info = {0};
 
 	/* SDIO ADMA requires at least 32 bit alignment */
 	head_align = 4;
-	sg_align = 4;
-	if (bus->sdiodev->pdata) {
-		head_align = bus->sdiodev->pdata->sd_head_align > 4 ?
-			     bus->sdiodev->pdata->sd_head_align : 4;
-		sg_align = bus->sdiodev->pdata->sd_sgentry_align > 4 ?
-			   bus->sdiodev->pdata->sd_sgentry_align : 4;
-	}
-	/* sg entry alignment should be a divisor of block size */
-	WARN_ON(blksize % sg_align);
+	if (bus->sdiodev->pdata && bus->sdiodev->pdata->sd_head_align > 4)
+		head_align = bus->sdiodev->pdata->sd_head_align;
 
 	pkt_next = pktq->next;
 	dat_buf = (u8 *)(pkt_next->data);
@@ -1932,40 +1974,20 @@ brcmf_sdio_txpkt_prep(struct brcmf_sdio *bus, struct sk_buff_head *pktq,
 		memset(dat_buf, 0, head_pad + bus->tx_hdrlen);
 	}
 
-	/* Check tail padding */
-	pkt_new = NULL;
-	tail_chop = pkt_next->len % sg_align;
-	tail_pad = sg_align - tail_chop;
-	tail_pad += blksize - (pkt_next->len + tail_pad) % blksize;
-	if (skb_tailroom(pkt_next) < tail_pad && pkt_next->len > blksize) {
-		pkt_new = brcmu_pkt_buf_get_skb(tail_pad + tail_chop);
-		if (pkt_new == NULL)
-			return -ENOMEM;
-		memcpy(pkt_new->data,
-		       pkt_next->data + pkt_next->len - tail_chop,
-		       tail_chop);
-		*(u32 *)(pkt_new->cb) = ALIGN_SKB_FLAG + tail_chop;
-		skb_trim(pkt_next, pkt_next->len - tail_chop);
-		__skb_queue_after(pktq, pkt_next, pkt_new);
+	if (bus->sdiodev->sg_support && pktq->qlen > 1) {
+		err = brcmf_sdio_txpkt_prep_sg(bus->sdiodev, pktq,
+					       pkt_next, chan);
+		if (err < 0)
+			return err;
+		hd_info.len = (u16)err;
 	} else {
-		ntail = pkt_next->data_len + tail_pad -
-			(pkt_next->end - pkt_next->tail);
-		if (skb_cloned(pkt_next) || ntail > 0)
-			if (pskb_expand_head(pkt_next, 0, ntail, GFP_ATOMIC))
-				return -ENOMEM;
-		if (skb_linearize(pkt_next))
-			return -ENOMEM;
-		dat_buf = (u8 *)(pkt_next->data);
-		__skb_put(pkt_next, tail_pad);
+		hd_info.len = pkt_next->len;
 	}
 
-	/* Now prep the header */
-	if (pkt_new)
-		hd_info.len = pkt_next->len + tail_chop;
-	else
-		hd_info.len = pkt_next->len - tail_pad;
 	hd_info.channel = chan;
 	hd_info.dat_offset = head_pad + bus->tx_hdrlen;
+
+	/* Now fill the header */
 	brcmf_sdio_hdpack(bus, dat_buf, &hd_info);
 
 	if (BRCMF_BYTES_ON() &&
-- 
cgit 


From a413e39a38573f8738911cfb51a4cd3f3873deda Mon Sep 17 00:00:00 2001
From: Arend van Spriel <arend@broadcom.com>
Date: Tue, 15 Oct 2013 15:44:57 +0200
Subject: brcmfmac: fix brcmf_sdcard_recv_chain() for host without sg support

If the SDIO host controller does not support scatter-gather the glom
superframe must be transfered from the device and the data for each
packet in the queue must be extracted from it.

Reviewed-by: Franky Lin <frankyl@broadcom.com>
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c    | 21 +++++++++++++++++++--
 drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c  |  2 +-
 drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h |  2 +-
 3 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
index 1103dc1cc9dc..3e10b801eee8 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/bcmsdh.c
@@ -569,8 +569,10 @@ done:
 }
 
 int brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
-			    uint flags, struct sk_buff_head *pktq)
+			    uint flags, struct sk_buff_head *pktq, uint totlen)
 {
+	struct sk_buff *glom_skb;
+	struct sk_buff *skb;
 	uint width;
 	int err = 0;
 
@@ -582,7 +584,22 @@ int brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 	if (err)
 		goto done;
 
-	err = brcmf_sdio_sglist_rw(sdiodev, fn, false, addr, pktq);
+	if (pktq->qlen == 1)
+		err = brcmf_sdio_buffrw(sdiodev, fn, false, addr, pktq->next);
+	else if (!sdiodev->sg_support) {
+		glom_skb = brcmu_pkt_buf_get_skb(totlen);
+		if (!glom_skb)
+			return -ENOMEM;
+		err = brcmf_sdio_buffrw(sdiodev, fn, false, addr, glom_skb);
+		if (err)
+			goto done;
+
+		skb_queue_walk(pktq, skb) {
+			memcpy(skb->data, glom_skb->data, skb->len);
+			skb_pull(glom_skb, skb->len);
+		}
+	} else
+		err = brcmf_sdio_sglist_rw(sdiodev, fn, false, addr, pktq);
 
 done:
 	return err;
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
index c9277011a1bc..b02953c4ade7 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/dhd_sdio.c
@@ -1392,7 +1392,7 @@ static u8 brcmf_sdbrcm_rxglom(struct brcmf_sdio *bus, u8 rxseq)
 		sdio_claim_host(bus->sdiodev->func[1]);
 		errcode = brcmf_sdcard_recv_chain(bus->sdiodev,
 				bus->sdiodev->sbwad,
-				SDIO_FUNC_2, F2SYNC, &bus->glom);
+				SDIO_FUNC_2, F2SYNC, &bus->glom, dlen);
 		sdio_release_host(bus->sdiodev->func[1]);
 		bus->sdcnt.f2rxdata++;
 
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
index 59c456f7eb12..1b034ea46f93 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
+++ b/drivers/net/wireless/brcm80211/brcmfmac/sdio_host.h
@@ -225,7 +225,7 @@ brcmf_sdcard_recv_buf(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
 		      uint flags, u8 *buf, uint nbytes);
 extern int
 brcmf_sdcard_recv_chain(struct brcmf_sdio_dev *sdiodev, u32 addr, uint fn,
-			uint flags, struct sk_buff_head *pktq);
+			uint flags, struct sk_buff_head *pktq, uint totlen);
 
 /* Flags bits */
 
-- 
cgit 


From 13996ade218c8b7f44bc517dfd66d904c585d6d2 Mon Sep 17 00:00:00 2001
From: Felipe Pena <felipensp@gmail.com>
Date: Tue, 15 Oct 2013 21:07:47 -0300
Subject: drivers: net: wireless: Fix wrong check for reassociation request
 retry counter

There is a typo where the checking for priv->ReAssociationRequestRetryCnt must
be, it was checking for priv->AssociationRequestRetryCnt instead.

Signed-off-by: Felipe Pena <felipensp@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/atmel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/atmel.c b/drivers/net/wireless/atmel.c
index b827d51c30a3..9c35479790b6 100644
--- a/drivers/net/wireless/atmel.c
+++ b/drivers/net/wireless/atmel.c
@@ -3212,7 +3212,7 @@ static void associate(struct atmel_private *priv, u16 frame_len, u16 subtype)
 	if (subtype == IEEE80211_STYPE_REASSOC_RESP &&
 	    status != WLAN_STATUS_ASSOC_DENIED_RATES &&
 	    status != WLAN_STATUS_CAPS_UNSUPPORTED &&
-	    priv->AssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) {
+	    priv->ReAssociationRequestRetryCnt < MAX_ASSOCIATION_RETRIES) {
 		mod_timer(&priv->management_timer, jiffies + MGMT_JIFFIES);
 		priv->ReAssociationRequestRetryCnt++;
 		send_association_request(priv, 1);
-- 
cgit 


From e5553f089a5604df2108f767392e67d4eedb330c Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:15 +0200
Subject: rt2x00: create a new module for rt2800 MMIO code

Create a new module for common code which can be used
for rt2800 device with memory mapped I/O. It is an empty
module for now, but it will be populated by subsequent
patches.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/Kconfig      |  4 ++++
 drivers/net/wireless/rt2x00/Makefile     |  1 +
 drivers/net/wireless/rt2x00/rt2800mmio.c | 39 ++++++++++++++++++++++++++++++++
 drivers/net/wireless/rt2x00/rt2800mmio.h | 34 ++++++++++++++++++++++++++++
 4 files changed, 78 insertions(+)
 create mode 100644 drivers/net/wireless/rt2x00/rt2800mmio.c
 create mode 100644 drivers/net/wireless/rt2x00/rt2800mmio.h

diff --git a/drivers/net/wireless/rt2x00/Kconfig b/drivers/net/wireless/rt2x00/Kconfig
index a18b0051a745..2232b1155983 100644
--- a/drivers/net/wireless/rt2x00/Kconfig
+++ b/drivers/net/wireless/rt2x00/Kconfig
@@ -60,6 +60,7 @@ config RT2800PCI
 	tristate "Ralink rt27xx/rt28xx/rt30xx (PCI/PCIe/PCMCIA) support"
 	depends on PCI || SOC_RT288X || SOC_RT305X
 	select RT2800_LIB
+	select RT2800_LIB_MMIO
 	select RT2X00_LIB_MMIO
 	select RT2X00_LIB_PCI if PCI
 	select RT2X00_LIB_SOC if SOC_RT288X || SOC_RT305X
@@ -202,6 +203,9 @@ endif
 config RT2800_LIB
 	tristate
 
+config RT2800_LIB_MMIO
+	tristate
+
 config RT2X00_LIB_MMIO
 	tristate
 
diff --git a/drivers/net/wireless/rt2x00/Makefile b/drivers/net/wireless/rt2x00/Makefile
index f069d8bc5b67..d11e3562ab46 100644
--- a/drivers/net/wireless/rt2x00/Makefile
+++ b/drivers/net/wireless/rt2x00/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_RT2X00_LIB_PCI)		+= rt2x00pci.o
 obj-$(CONFIG_RT2X00_LIB_SOC)		+= rt2x00soc.o
 obj-$(CONFIG_RT2X00_LIB_USB)		+= rt2x00usb.o
 obj-$(CONFIG_RT2800_LIB)		+= rt2800lib.o
+obj-$(CONFIG_RT2800_LIB_MMIO)		+= rt2800mmio.o
 obj-$(CONFIG_RT2400PCI)			+= rt2400pci.o
 obj-$(CONFIG_RT2500PCI)			+= rt2500pci.o
 obj-$(CONFIG_RT61PCI)			+= rt61pci.o
diff --git a/drivers/net/wireless/rt2x00/rt2800mmio.c b/drivers/net/wireless/rt2x00/rt2800mmio.c
new file mode 100644
index 000000000000..a2b9848f4012
--- /dev/null
+++ b/drivers/net/wireless/rt2x00/rt2800mmio.c
@@ -0,0 +1,39 @@
+/*	Copyright (C) 2009 - 2010 Ivo van Doorn <IvDoorn@gmail.com>
+ *	Copyright (C) 2009 Alban Browaeys <prahal@yahoo.com>
+ *	Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
+ *	Copyright (C) 2009 Luis Correia <luis.f.correia@gmail.com>
+ *	Copyright (C) 2009 Mattias Nissler <mattias.nissler@gmx.de>
+ *	Copyright (C) 2009 Mark Asselstine <asselsm@gmail.com>
+ *	Copyright (C) 2009 Xose Vazquez Perez <xose.vazquez@gmail.com>
+ *	Copyright (C) 2009 Bart Zolnierkiewicz <bzolnier@gmail.com>
+ *	<http://rt2x00.serialmonkey.com>
+ *
+ *	This program is free software; you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation; either version 2 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *	GNU General Public License for more details.
+ *
+ *	You should have received a copy of the GNU General Public License
+ *	along with this program; if not, write to the
+ *	Free Software Foundation, Inc.,
+ *	59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*	Module: rt2800mmio
+ *	Abstract: rt2800 MMIO device routines.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include "rt2x00.h"
+
+MODULE_AUTHOR(DRV_PROJECT);
+MODULE_VERSION(DRV_VERSION);
+MODULE_DESCRIPTION("rt2800 MMIO library");
+MODULE_LICENSE("GPL");
diff --git a/drivers/net/wireless/rt2x00/rt2800mmio.h b/drivers/net/wireless/rt2x00/rt2800mmio.h
new file mode 100644
index 000000000000..32f9dcde9fad
--- /dev/null
+++ b/drivers/net/wireless/rt2x00/rt2800mmio.h
@@ -0,0 +1,34 @@
+/*	Copyright (C) 2009 - 2010 Ivo van Doorn <IvDoorn@gmail.com>
+ *	Copyright (C) 2009 Alban Browaeys <prahal@yahoo.com>
+ *	Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
+ *	Copyright (C) 2009 Luis Correia <luis.f.correia@gmail.com>
+ *	Copyright (C) 2009 Mattias Nissler <mattias.nissler@gmx.de>
+ *	Copyright (C) 2009 Mark Asselstine <asselsm@gmail.com>
+ *	Copyright (C) 2009 Xose Vazquez Perez <xose.vazquez@gmail.com>
+ *	Copyright (C) 2009 Bart Zolnierkiewicz <bzolnier@gmail.com>
+ *	<http://rt2x00.serialmonkey.com>
+ *
+ *	This program is free software; you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation; either version 2 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *	GNU General Public License for more details.
+ *
+ *	You should have received a copy of the GNU General Public License
+ *	along with this program; if not, write to the
+ *	Free Software Foundation, Inc.,
+ *	59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*	Module: rt2800mmio
+ *	Abstract: forward declarations for the rt2800mmio module.
+ */
+
+#ifndef RT2800MMIO_H
+#define RT2800MMIO_H
+
+#endif /* RT2800MMIO_H */
-- 
cgit 


From 45c67550ad72be5c892d7b001fc835aae18a7a62 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:16 +0200
Subject: rt2x00: rt2800pci: use rt2800mmio prefix for TX descriptor functions

The functions are used for devices with memory
mapped I/O and contain no PCI specific code at
all. Use rt2800mmio prefix instead of rt2800pci
in the function names to reflect that.

The patch contains no functional changes.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800pci.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index f8f2abbfbb65..ddc6a42ad7b9 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -629,13 +629,13 @@ static int rt2800pci_set_device_state(struct rt2x00_dev *rt2x00dev,
 /*
  * TX descriptor initialization
  */
-static __le32 *rt2800pci_get_txwi(struct queue_entry *entry)
+static __le32 *rt2800mmio_get_txwi(struct queue_entry *entry)
 {
 	return (__le32 *) entry->skb->data;
 }
 
-static void rt2800pci_write_tx_desc(struct queue_entry *entry,
-				    struct txentry_desc *txdesc)
+static void rt2800mmio_write_tx_desc(struct queue_entry *entry,
+				     struct txentry_desc *txdesc)
 {
 	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
 	struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
@@ -826,7 +826,7 @@ static bool rt2800pci_txdone_release_entries(struct queue_entry *entry,
 {
 	if (test_bit(ENTRY_DATA_STATUS_SET, &entry->flags)) {
 		rt2800_txdone_entry(entry, entry->status,
-				    rt2800pci_get_txwi(entry));
+				    rt2800mmio_get_txwi(entry));
 		return false;
 	}
 
@@ -1146,7 +1146,7 @@ static const struct rt2800_ops rt2800pci_rt2800_ops = {
 	.hwcrypt_disabled	= rt2800pci_hwcrypt_disabled,
 	.drv_write_firmware	= rt2800pci_write_firmware,
 	.drv_init_registers	= rt2800pci_init_registers,
-	.drv_get_txwi		= rt2800pci_get_txwi,
+	.drv_get_txwi		= rt2800mmio_get_txwi,
 };
 
 static const struct rt2x00lib_ops rt2800pci_rt2x00_ops = {
@@ -1175,7 +1175,7 @@ static const struct rt2x00lib_ops rt2800pci_rt2x00_ops = {
 	.kick_queue		= rt2800pci_kick_queue,
 	.stop_queue		= rt2800pci_stop_queue,
 	.flush_queue		= rt2x00mmio_flush_queue,
-	.write_tx_desc		= rt2800pci_write_tx_desc,
+	.write_tx_desc		= rt2800mmio_write_tx_desc,
 	.write_tx_data		= rt2800_write_tx_data,
 	.write_beacon		= rt2800_write_beacon,
 	.clear_beacon		= rt2800_clear_beacon,
-- 
cgit 


From 0bc202b3bbea5106677b8b142a09d3d57a2bb263 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:17 +0200
Subject: rt2x00: rt2800pci: move TX descriptor functions to the rt2800mmio
 module

Move the functions into a separate module, in order
to make those usable from other modules. Also move
the TX descriptor related defines from rt2800pci.h
into rt2800mmio.h.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/Kconfig      |  1 +
 drivers/net/wireless/rt2x00/rt2800mmio.c | 68 ++++++++++++++++++++++++++++++++
 drivers/net/wireless/rt2x00/rt2800mmio.h | 47 ++++++++++++++++++++++
 drivers/net/wireless/rt2x00/rt2800pci.c  | 62 +----------------------------
 drivers/net/wireless/rt2x00/rt2800pci.h  | 37 -----------------
 5 files changed, 117 insertions(+), 98 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/Kconfig b/drivers/net/wireless/rt2x00/Kconfig
index 2232b1155983..535ad3a6970c 100644
--- a/drivers/net/wireless/rt2x00/Kconfig
+++ b/drivers/net/wireless/rt2x00/Kconfig
@@ -205,6 +205,7 @@ config RT2800_LIB
 
 config RT2800_LIB_MMIO
 	tristate
+	select RT2X00_LIB_MMIO
 
 config RT2X00_LIB_MMIO
 	tristate
diff --git a/drivers/net/wireless/rt2x00/rt2800mmio.c b/drivers/net/wireless/rt2x00/rt2800mmio.c
index a2b9848f4012..d2ebb68b97af 100644
--- a/drivers/net/wireless/rt2x00/rt2800mmio.c
+++ b/drivers/net/wireless/rt2x00/rt2800mmio.c
@@ -30,6 +30,74 @@
 
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/export.h>
+
+#include "rt2x00.h"
+#include "rt2x00mmio.h"
+#include "rt2800mmio.h"
+
+/*
+ * TX descriptor initialization
+ */
+__le32 *rt2800mmio_get_txwi(struct queue_entry *entry)
+{
+	return (__le32 *) entry->skb->data;
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_get_txwi);
+
+void rt2800mmio_write_tx_desc(struct queue_entry *entry,
+			      struct txentry_desc *txdesc)
+{
+	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
+	struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
+	__le32 *txd = entry_priv->desc;
+	u32 word;
+	const unsigned int txwi_size = entry->queue->winfo_size;
+
+	/*
+	 * The buffers pointed by SD_PTR0/SD_LEN0 and SD_PTR1/SD_LEN1
+	 * must contains a TXWI structure + 802.11 header + padding + 802.11
+	 * data. We choose to have SD_PTR0/SD_LEN0 only contains TXWI and
+	 * SD_PTR1/SD_LEN1 contains 802.11 header + padding + 802.11
+	 * data. It means that LAST_SEC0 is always 0.
+	 */
+
+	/*
+	 * Initialize TX descriptor
+	 */
+	word = 0;
+	rt2x00_set_field32(&word, TXD_W0_SD_PTR0, skbdesc->skb_dma);
+	rt2x00_desc_write(txd, 0, word);
+
+	word = 0;
+	rt2x00_set_field32(&word, TXD_W1_SD_LEN1, entry->skb->len);
+	rt2x00_set_field32(&word, TXD_W1_LAST_SEC1,
+			   !test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
+	rt2x00_set_field32(&word, TXD_W1_BURST,
+			   test_bit(ENTRY_TXD_BURST, &txdesc->flags));
+	rt2x00_set_field32(&word, TXD_W1_SD_LEN0, txwi_size);
+	rt2x00_set_field32(&word, TXD_W1_LAST_SEC0, 0);
+	rt2x00_set_field32(&word, TXD_W1_DMA_DONE, 0);
+	rt2x00_desc_write(txd, 1, word);
+
+	word = 0;
+	rt2x00_set_field32(&word, TXD_W2_SD_PTR1,
+			   skbdesc->skb_dma + txwi_size);
+	rt2x00_desc_write(txd, 2, word);
+
+	word = 0;
+	rt2x00_set_field32(&word, TXD_W3_WIV,
+			   !test_bit(ENTRY_TXD_ENCRYPT_IV, &txdesc->flags));
+	rt2x00_set_field32(&word, TXD_W3_QSEL, 2);
+	rt2x00_desc_write(txd, 3, word);
+
+	/*
+	 * Register descriptor details in skb frame descriptor.
+	 */
+	skbdesc->desc = txd;
+	skbdesc->desc_len = TXD_DESC_SIZE;
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_write_tx_desc);
 
 #include "rt2x00.h"
 
diff --git a/drivers/net/wireless/rt2x00/rt2800mmio.h b/drivers/net/wireless/rt2x00/rt2800mmio.h
index 32f9dcde9fad..026664002d01 100644
--- a/drivers/net/wireless/rt2x00/rt2800mmio.h
+++ b/drivers/net/wireless/rt2x00/rt2800mmio.h
@@ -31,4 +31,51 @@
 #ifndef RT2800MMIO_H
 #define RT2800MMIO_H
 
+/*
+ * DMA descriptor defines.
+ */
+#define TXD_DESC_SIZE			(4 * sizeof(__le32))
+
+/*
+ * TX descriptor format for TX, PRIO and Beacon Ring.
+ */
+
+/*
+ * Word0
+ */
+#define TXD_W0_SD_PTR0			FIELD32(0xffffffff)
+
+/*
+ * Word1
+ */
+#define TXD_W1_SD_LEN1			FIELD32(0x00003fff)
+#define TXD_W1_LAST_SEC1		FIELD32(0x00004000)
+#define TXD_W1_BURST			FIELD32(0x00008000)
+#define TXD_W1_SD_LEN0			FIELD32(0x3fff0000)
+#define TXD_W1_LAST_SEC0		FIELD32(0x40000000)
+#define TXD_W1_DMA_DONE			FIELD32(0x80000000)
+
+/*
+ * Word2
+ */
+#define TXD_W2_SD_PTR1			FIELD32(0xffffffff)
+
+/*
+ * Word3
+ * WIV: Wireless Info Valid. 1: Driver filled WI, 0: DMA needs to copy WI
+ * QSEL: Select on-chip FIFO ID for 2nd-stage output scheduler.
+ *       0:MGMT, 1:HCCA 2:EDCA
+ */
+#define TXD_W3_WIV			FIELD32(0x01000000)
+#define TXD_W3_QSEL			FIELD32(0x06000000)
+#define TXD_W3_TCO			FIELD32(0x20000000)
+#define TXD_W3_UCO			FIELD32(0x40000000)
+#define TXD_W3_ICO			FIELD32(0x80000000)
+
+
+/* TX descriptor initialization */
+__le32 *rt2800mmio_get_txwi(struct queue_entry *entry);
+void rt2800mmio_write_tx_desc(struct queue_entry *entry,
+			      struct txentry_desc *txdesc);
+
 #endif /* RT2800MMIO_H */
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index ddc6a42ad7b9..b2e2b091dabb 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -45,6 +45,7 @@
 #include "rt2x00pci.h"
 #include "rt2x00soc.h"
 #include "rt2800lib.h"
+#include "rt2800mmio.h"
 #include "rt2800.h"
 #include "rt2800pci.h"
 
@@ -626,67 +627,6 @@ static int rt2800pci_set_device_state(struct rt2x00_dev *rt2x00dev,
 	return retval;
 }
 
-/*
- * TX descriptor initialization
- */
-static __le32 *rt2800mmio_get_txwi(struct queue_entry *entry)
-{
-	return (__le32 *) entry->skb->data;
-}
-
-static void rt2800mmio_write_tx_desc(struct queue_entry *entry,
-				     struct txentry_desc *txdesc)
-{
-	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
-	struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
-	__le32 *txd = entry_priv->desc;
-	u32 word;
-	const unsigned int txwi_size = entry->queue->winfo_size;
-
-	/*
-	 * The buffers pointed by SD_PTR0/SD_LEN0 and SD_PTR1/SD_LEN1
-	 * must contains a TXWI structure + 802.11 header + padding + 802.11
-	 * data. We choose to have SD_PTR0/SD_LEN0 only contains TXWI and
-	 * SD_PTR1/SD_LEN1 contains 802.11 header + padding + 802.11
-	 * data. It means that LAST_SEC0 is always 0.
-	 */
-
-	/*
-	 * Initialize TX descriptor
-	 */
-	word = 0;
-	rt2x00_set_field32(&word, TXD_W0_SD_PTR0, skbdesc->skb_dma);
-	rt2x00_desc_write(txd, 0, word);
-
-	word = 0;
-	rt2x00_set_field32(&word, TXD_W1_SD_LEN1, entry->skb->len);
-	rt2x00_set_field32(&word, TXD_W1_LAST_SEC1,
-			   !test_bit(ENTRY_TXD_MORE_FRAG, &txdesc->flags));
-	rt2x00_set_field32(&word, TXD_W1_BURST,
-			   test_bit(ENTRY_TXD_BURST, &txdesc->flags));
-	rt2x00_set_field32(&word, TXD_W1_SD_LEN0, txwi_size);
-	rt2x00_set_field32(&word, TXD_W1_LAST_SEC0, 0);
-	rt2x00_set_field32(&word, TXD_W1_DMA_DONE, 0);
-	rt2x00_desc_write(txd, 1, word);
-
-	word = 0;
-	rt2x00_set_field32(&word, TXD_W2_SD_PTR1,
-			   skbdesc->skb_dma + txwi_size);
-	rt2x00_desc_write(txd, 2, word);
-
-	word = 0;
-	rt2x00_set_field32(&word, TXD_W3_WIV,
-			   !test_bit(ENTRY_TXD_ENCRYPT_IV, &txdesc->flags));
-	rt2x00_set_field32(&word, TXD_W3_QSEL, 2);
-	rt2x00_desc_write(txd, 3, word);
-
-	/*
-	 * Register descriptor details in skb frame descriptor.
-	 */
-	skbdesc->desc = txd;
-	skbdesc->desc_len = TXD_DESC_SIZE;
-}
-
 /*
  * RX control handlers
  */
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.h b/drivers/net/wireless/rt2x00/rt2800pci.h
index ab22a087c50d..ecd154ea56d0 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.h
+++ b/drivers/net/wireless/rt2x00/rt2800pci.h
@@ -53,45 +53,8 @@
 /*
  * DMA descriptor defines.
  */
-#define TXD_DESC_SIZE			(4 * sizeof(__le32))
 #define RXD_DESC_SIZE			(4 * sizeof(__le32))
 
-/*
- * TX descriptor format for TX, PRIO and Beacon Ring.
- */
-
-/*
- * Word0
- */
-#define TXD_W0_SD_PTR0			FIELD32(0xffffffff)
-
-/*
- * Word1
- */
-#define TXD_W1_SD_LEN1			FIELD32(0x00003fff)
-#define TXD_W1_LAST_SEC1		FIELD32(0x00004000)
-#define TXD_W1_BURST			FIELD32(0x00008000)
-#define TXD_W1_SD_LEN0			FIELD32(0x3fff0000)
-#define TXD_W1_LAST_SEC0		FIELD32(0x40000000)
-#define TXD_W1_DMA_DONE			FIELD32(0x80000000)
-
-/*
- * Word2
- */
-#define TXD_W2_SD_PTR1			FIELD32(0xffffffff)
-
-/*
- * Word3
- * WIV: Wireless Info Valid. 1: Driver filled WI, 0: DMA needs to copy WI
- * QSEL: Select on-chip FIFO ID for 2nd-stage output scheduler.
- *       0:MGMT, 1:HCCA 2:EDCA
- */
-#define TXD_W3_WIV			FIELD32(0x01000000)
-#define TXD_W3_QSEL			FIELD32(0x06000000)
-#define TXD_W3_TCO			FIELD32(0x20000000)
-#define TXD_W3_UCO			FIELD32(0x40000000)
-#define TXD_W3_ICO			FIELD32(0x80000000)
-
 /*
  * RX descriptor format for RX Ring.
  */
-- 
cgit 


From d10b7547d5dcf2826e393a740d6a5d4cb8ce892e Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:18 +0200
Subject: rt2x00: rt2800pci: use rt2800mmio prefix for RX control handler
 functions

The functions are used for devices with memory
mapped I/O and contain no PCI specific code at
all. Use rt2800mmio prefix instead of rt2800pci
in the function names to reflect that.

The patch contains no functional changes.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800pci.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index b2e2b091dabb..37ac888ff83a 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -630,8 +630,8 @@ static int rt2800pci_set_device_state(struct rt2x00_dev *rt2x00dev,
 /*
  * RX control handlers
  */
-static void rt2800pci_fill_rxdone(struct queue_entry *entry,
-				  struct rxdone_entry_desc *rxdesc)
+static void rt2800mmio_fill_rxdone(struct queue_entry *entry,
+				   struct rxdone_entry_desc *rxdesc)
 {
 	struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
 	__le32 *rxd = entry_priv->desc;
@@ -1119,7 +1119,7 @@ static const struct rt2x00lib_ops rt2800pci_rt2x00_ops = {
 	.write_tx_data		= rt2800_write_tx_data,
 	.write_beacon		= rt2800_write_beacon,
 	.clear_beacon		= rt2800_clear_beacon,
-	.fill_rxdone		= rt2800pci_fill_rxdone,
+	.fill_rxdone		= rt2800mmio_fill_rxdone,
 	.config_shared_key	= rt2800_config_shared_key,
 	.config_pairwise_key	= rt2800_config_pairwise_key,
 	.config_filter		= rt2800_config_filter,
-- 
cgit 


From 9732497d4d7f6db7d5504f490f0d7631e24af396 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:19 +0200
Subject: rt2x00: rt2800pci: move RX control handler functions to the
 rt2800mmio module

Move the functions into a separate module, in order
to make those usable from other modules. Also move
the RX descriptor related defines from rt2800pci.h
into rt2800mmio.h

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/Kconfig      |  1 +
 drivers/net/wireless/rt2x00/rt2800mmio.c | 57 +++++++++++++++++++++++++++++++-
 drivers/net/wireless/rt2x00/rt2800mmio.h | 51 ++++++++++++++++++++++++++++
 drivers/net/wireless/rt2x00/rt2800pci.c  | 55 ------------------------------
 drivers/net/wireless/rt2x00/rt2800pci.h  | 51 ----------------------------
 5 files changed, 108 insertions(+), 107 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/Kconfig b/drivers/net/wireless/rt2x00/Kconfig
index 535ad3a6970c..e86324931b63 100644
--- a/drivers/net/wireless/rt2x00/Kconfig
+++ b/drivers/net/wireless/rt2x00/Kconfig
@@ -206,6 +206,7 @@ config RT2800_LIB
 config RT2800_LIB_MMIO
 	tristate
 	select RT2X00_LIB_MMIO
+	select RT2800_LIB
 
 config RT2X00_LIB_MMIO
 	tristate
diff --git a/drivers/net/wireless/rt2x00/rt2800mmio.c b/drivers/net/wireless/rt2x00/rt2800mmio.c
index d2ebb68b97af..32b8e5058867 100644
--- a/drivers/net/wireless/rt2x00/rt2800mmio.c
+++ b/drivers/net/wireless/rt2x00/rt2800mmio.c
@@ -34,6 +34,7 @@
 
 #include "rt2x00.h"
 #include "rt2x00mmio.h"
+#include "rt2800lib.h"
 #include "rt2800mmio.h"
 
 /*
@@ -99,7 +100,61 @@ void rt2800mmio_write_tx_desc(struct queue_entry *entry,
 }
 EXPORT_SYMBOL_GPL(rt2800mmio_write_tx_desc);
 
-#include "rt2x00.h"
+/*
+ * RX control handlers
+ */
+void rt2800mmio_fill_rxdone(struct queue_entry *entry,
+			    struct rxdone_entry_desc *rxdesc)
+{
+	struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
+	__le32 *rxd = entry_priv->desc;
+	u32 word;
+
+	rt2x00_desc_read(rxd, 3, &word);
+
+	if (rt2x00_get_field32(word, RXD_W3_CRC_ERROR))
+		rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
+
+	/*
+	 * Unfortunately we don't know the cipher type used during
+	 * decryption. This prevents us from correct providing
+	 * correct statistics through debugfs.
+	 */
+	rxdesc->cipher_status = rt2x00_get_field32(word, RXD_W3_CIPHER_ERROR);
+
+	if (rt2x00_get_field32(word, RXD_W3_DECRYPTED)) {
+		/*
+		 * Hardware has stripped IV/EIV data from 802.11 frame during
+		 * decryption. Unfortunately the descriptor doesn't contain
+		 * any fields with the EIV/IV data either, so they can't
+		 * be restored by rt2x00lib.
+		 */
+		rxdesc->flags |= RX_FLAG_IV_STRIPPED;
+
+		/*
+		 * The hardware has already checked the Michael Mic and has
+		 * stripped it from the frame. Signal this to mac80211.
+		 */
+		rxdesc->flags |= RX_FLAG_MMIC_STRIPPED;
+
+		if (rxdesc->cipher_status == RX_CRYPTO_SUCCESS)
+			rxdesc->flags |= RX_FLAG_DECRYPTED;
+		else if (rxdesc->cipher_status == RX_CRYPTO_FAIL_MIC)
+			rxdesc->flags |= RX_FLAG_MMIC_ERROR;
+	}
+
+	if (rt2x00_get_field32(word, RXD_W3_MY_BSS))
+		rxdesc->dev_flags |= RXDONE_MY_BSS;
+
+	if (rt2x00_get_field32(word, RXD_W3_L2PAD))
+		rxdesc->dev_flags |= RXDONE_L2PAD;
+
+	/*
+	 * Process the RXWI structure that is at the start of the buffer.
+	 */
+	rt2800_process_rxwi(entry, rxdesc);
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_fill_rxdone);
 
 MODULE_AUTHOR(DRV_PROJECT);
 MODULE_VERSION(DRV_VERSION);
diff --git a/drivers/net/wireless/rt2x00/rt2800mmio.h b/drivers/net/wireless/rt2x00/rt2800mmio.h
index 026664002d01..71e3d2268436 100644
--- a/drivers/net/wireless/rt2x00/rt2800mmio.h
+++ b/drivers/net/wireless/rt2x00/rt2800mmio.h
@@ -35,6 +35,7 @@
  * DMA descriptor defines.
  */
 #define TXD_DESC_SIZE			(4 * sizeof(__le32))
+#define RXD_DESC_SIZE			(4 * sizeof(__le32))
 
 /*
  * TX descriptor format for TX, PRIO and Beacon Ring.
@@ -72,10 +73,60 @@
 #define TXD_W3_UCO			FIELD32(0x40000000)
 #define TXD_W3_ICO			FIELD32(0x80000000)
 
+/*
+ * RX descriptor format for RX Ring.
+ */
+
+/*
+ * Word0
+ */
+#define RXD_W0_SDP0			FIELD32(0xffffffff)
+
+/*
+ * Word1
+ */
+#define RXD_W1_SDL1			FIELD32(0x00003fff)
+#define RXD_W1_SDL0			FIELD32(0x3fff0000)
+#define RXD_W1_LS0			FIELD32(0x40000000)
+#define RXD_W1_DMA_DONE			FIELD32(0x80000000)
+
+/*
+ * Word2
+ */
+#define RXD_W2_SDP1			FIELD32(0xffffffff)
+
+/*
+ * Word3
+ * AMSDU: RX with 802.3 header, not 802.11 header.
+ * DECRYPTED: This frame is being decrypted.
+ */
+#define RXD_W3_BA			FIELD32(0x00000001)
+#define RXD_W3_DATA			FIELD32(0x00000002)
+#define RXD_W3_NULLDATA			FIELD32(0x00000004)
+#define RXD_W3_FRAG			FIELD32(0x00000008)
+#define RXD_W3_UNICAST_TO_ME		FIELD32(0x00000010)
+#define RXD_W3_MULTICAST		FIELD32(0x00000020)
+#define RXD_W3_BROADCAST		FIELD32(0x00000040)
+#define RXD_W3_MY_BSS			FIELD32(0x00000080)
+#define RXD_W3_CRC_ERROR		FIELD32(0x00000100)
+#define RXD_W3_CIPHER_ERROR		FIELD32(0x00000600)
+#define RXD_W3_AMSDU			FIELD32(0x00000800)
+#define RXD_W3_HTC			FIELD32(0x00001000)
+#define RXD_W3_RSSI			FIELD32(0x00002000)
+#define RXD_W3_L2PAD			FIELD32(0x00004000)
+#define RXD_W3_AMPDU			FIELD32(0x00008000)
+#define RXD_W3_DECRYPTED		FIELD32(0x00010000)
+#define RXD_W3_PLCP_SIGNAL		FIELD32(0x00020000)
+#define RXD_W3_PLCP_RSSI		FIELD32(0x00040000)
 
 /* TX descriptor initialization */
 __le32 *rt2800mmio_get_txwi(struct queue_entry *entry);
 void rt2800mmio_write_tx_desc(struct queue_entry *entry,
 			      struct txentry_desc *txdesc);
 
+/* RX control handlers */
+void rt2800mmio_fill_rxdone(struct queue_entry *entry,
+			    struct rxdone_entry_desc *rxdesc);
+
+
 #endif /* RT2800MMIO_H */
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 37ac888ff83a..2cbaaac89e9a 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -627,61 +627,6 @@ static int rt2800pci_set_device_state(struct rt2x00_dev *rt2x00dev,
 	return retval;
 }
 
-/*
- * RX control handlers
- */
-static void rt2800mmio_fill_rxdone(struct queue_entry *entry,
-				   struct rxdone_entry_desc *rxdesc)
-{
-	struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
-	__le32 *rxd = entry_priv->desc;
-	u32 word;
-
-	rt2x00_desc_read(rxd, 3, &word);
-
-	if (rt2x00_get_field32(word, RXD_W3_CRC_ERROR))
-		rxdesc->flags |= RX_FLAG_FAILED_FCS_CRC;
-
-	/*
-	 * Unfortunately we don't know the cipher type used during
-	 * decryption. This prevents us from correct providing
-	 * correct statistics through debugfs.
-	 */
-	rxdesc->cipher_status = rt2x00_get_field32(word, RXD_W3_CIPHER_ERROR);
-
-	if (rt2x00_get_field32(word, RXD_W3_DECRYPTED)) {
-		/*
-		 * Hardware has stripped IV/EIV data from 802.11 frame during
-		 * decryption. Unfortunately the descriptor doesn't contain
-		 * any fields with the EIV/IV data either, so they can't
-		 * be restored by rt2x00lib.
-		 */
-		rxdesc->flags |= RX_FLAG_IV_STRIPPED;
-
-		/*
-		 * The hardware has already checked the Michael Mic and has
-		 * stripped it from the frame. Signal this to mac80211.
-		 */
-		rxdesc->flags |= RX_FLAG_MMIC_STRIPPED;
-
-		if (rxdesc->cipher_status == RX_CRYPTO_SUCCESS)
-			rxdesc->flags |= RX_FLAG_DECRYPTED;
-		else if (rxdesc->cipher_status == RX_CRYPTO_FAIL_MIC)
-			rxdesc->flags |= RX_FLAG_MMIC_ERROR;
-	}
-
-	if (rt2x00_get_field32(word, RXD_W3_MY_BSS))
-		rxdesc->dev_flags |= RXDONE_MY_BSS;
-
-	if (rt2x00_get_field32(word, RXD_W3_L2PAD))
-		rxdesc->dev_flags |= RXDONE_L2PAD;
-
-	/*
-	 * Process the RXWI structure that is at the start of the buffer.
-	 */
-	rt2800_process_rxwi(entry, rxdesc);
-}
-
 /*
  * Interrupt functions.
  */
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.h b/drivers/net/wireless/rt2x00/rt2800pci.h
index ecd154ea56d0..0e551593bf16 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.h
+++ b/drivers/net/wireless/rt2x00/rt2800pci.h
@@ -50,55 +50,4 @@
 #define FIRMWARE_RT3290			"rt3290.bin"
 #define FIRMWARE_IMAGE_BASE		0x2000
 
-/*
- * DMA descriptor defines.
- */
-#define RXD_DESC_SIZE			(4 * sizeof(__le32))
-
-/*
- * RX descriptor format for RX Ring.
- */
-
-/*
- * Word0
- */
-#define RXD_W0_SDP0			FIELD32(0xffffffff)
-
-/*
- * Word1
- */
-#define RXD_W1_SDL1			FIELD32(0x00003fff)
-#define RXD_W1_SDL0			FIELD32(0x3fff0000)
-#define RXD_W1_LS0			FIELD32(0x40000000)
-#define RXD_W1_DMA_DONE			FIELD32(0x80000000)
-
-/*
- * Word2
- */
-#define RXD_W2_SDP1			FIELD32(0xffffffff)
-
-/*
- * Word3
- * AMSDU: RX with 802.3 header, not 802.11 header.
- * DECRYPTED: This frame is being decrypted.
- */
-#define RXD_W3_BA			FIELD32(0x00000001)
-#define RXD_W3_DATA			FIELD32(0x00000002)
-#define RXD_W3_NULLDATA			FIELD32(0x00000004)
-#define RXD_W3_FRAG			FIELD32(0x00000008)
-#define RXD_W3_UNICAST_TO_ME		FIELD32(0x00000010)
-#define RXD_W3_MULTICAST		FIELD32(0x00000020)
-#define RXD_W3_BROADCAST		FIELD32(0x00000040)
-#define RXD_W3_MY_BSS			FIELD32(0x00000080)
-#define RXD_W3_CRC_ERROR		FIELD32(0x00000100)
-#define RXD_W3_CIPHER_ERROR		FIELD32(0x00000600)
-#define RXD_W3_AMSDU			FIELD32(0x00000800)
-#define RXD_W3_HTC			FIELD32(0x00001000)
-#define RXD_W3_RSSI			FIELD32(0x00002000)
-#define RXD_W3_L2PAD			FIELD32(0x00004000)
-#define RXD_W3_AMPDU			FIELD32(0x00008000)
-#define RXD_W3_DECRYPTED		FIELD32(0x00010000)
-#define RXD_W3_PLCP_SIGNAL		FIELD32(0x00020000)
-#define RXD_W3_PLCP_RSSI		FIELD32(0x00040000)
-
 #endif /* RT2800PCI_H */
-- 
cgit 


From b5cfde3fd9ff44c4ba831815a441d2b5a5af0b2f Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:20 +0200
Subject: rt2x00: rt2800pci: use rt2800mmio prefix for interrupt functions

The functions are used for devices with memory
mapped I/O and contain no PCI specific code at
all. Use rt2800mmio prefix instead of rt2800pci
in the function names to reflect that.

The patch contains no functional changes.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800pci.c | 73 +++++++++++++++++----------------
 1 file changed, 37 insertions(+), 36 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 2cbaaac89e9a..a829ce59e026 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -448,8 +448,8 @@ static int rt2800pci_init_queues(struct rt2x00_dev *rt2x00dev)
 /*
  * Device state switch handlers.
  */
-static void rt2800pci_toggle_irq(struct rt2x00_dev *rt2x00dev,
-				 enum dev_state state)
+static void rt2800mmio_toggle_irq(struct rt2x00_dev *rt2x00dev,
+				  enum dev_state state)
 {
 	u32 reg;
 	unsigned long flags;
@@ -607,7 +607,7 @@ static int rt2800pci_set_device_state(struct rt2x00_dev *rt2x00dev,
 		break;
 	case STATE_RADIO_IRQ_ON:
 	case STATE_RADIO_IRQ_OFF:
-		rt2800pci_toggle_irq(rt2x00dev, state);
+		rt2800mmio_toggle_irq(rt2x00dev, state);
 		break;
 	case STATE_DEEP_SLEEP:
 	case STATE_SLEEP:
@@ -630,7 +630,7 @@ static int rt2800pci_set_device_state(struct rt2x00_dev *rt2x00dev,
 /*
  * Interrupt functions.
  */
-static void rt2800pci_wakeup(struct rt2x00_dev *rt2x00dev)
+static void rt2800mmio_wakeup(struct rt2x00_dev *rt2x00dev)
 {
 	struct ieee80211_conf conf = { .flags = 0 };
 	struct rt2x00lib_conf libconf = { .conf = &conf };
@@ -638,7 +638,7 @@ static void rt2800pci_wakeup(struct rt2x00_dev *rt2x00dev)
 	rt2800_config(rt2x00dev, &libconf, IEEE80211_CONF_CHANGE_PS);
 }
 
-static bool rt2800pci_txdone_entry_check(struct queue_entry *entry, u32 status)
+static bool rt2800mmio_txdone_entry_check(struct queue_entry *entry, u32 status)
 {
 	__le32 *txwi;
 	u32 word;
@@ -653,7 +653,7 @@ static bool rt2800pci_txdone_entry_check(struct queue_entry *entry, u32 status)
 	return (tx_wcid == wcid);
 }
 
-static bool rt2800pci_txdone_find_entry(struct queue_entry *entry, void *data)
+static bool rt2800mmio_txdone_find_entry(struct queue_entry *entry, void *data)
 {
 	u32 status = *(u32 *)data;
 
@@ -670,7 +670,7 @@ static bool rt2800pci_txdone_find_entry(struct queue_entry *entry, void *data)
 	 * To mitigate this effect, associate the tx status to the first frame
 	 * in the tx queue with a matching wcid.
 	 */
-	if (rt2800pci_txdone_entry_check(entry, status) &&
+	if (rt2800mmio_txdone_entry_check(entry, status) &&
 	    !test_bit(ENTRY_DATA_STATUS_SET, &entry->flags)) {
 		/*
 		 * Got a matching frame, associate the tx status with
@@ -685,7 +685,7 @@ static bool rt2800pci_txdone_find_entry(struct queue_entry *entry, void *data)
 	return false;
 }
 
-static bool rt2800pci_txdone_match_first(struct queue_entry *entry, void *data)
+static bool rt2800mmio_txdone_match_first(struct queue_entry *entry, void *data)
 {
 	u32 status = *(u32 *)data;
 
@@ -706,8 +706,8 @@ static bool rt2800pci_txdone_match_first(struct queue_entry *entry, void *data)
 	/* Check the next frame */
 	return false;
 }
-static bool rt2800pci_txdone_release_entries(struct queue_entry *entry,
-					     void *data)
+static bool rt2800mmio_txdone_release_entries(struct queue_entry *entry,
+					      void *data)
 {
 	if (test_bit(ENTRY_DATA_STATUS_SET, &entry->flags)) {
 		rt2800_txdone_entry(entry, entry->status,
@@ -719,7 +719,7 @@ static bool rt2800pci_txdone_release_entries(struct queue_entry *entry,
 	return true;
 }
 
-static bool rt2800pci_txdone(struct rt2x00_dev *rt2x00dev)
+static bool rt2800mmio_txdone(struct rt2x00_dev *rt2x00dev)
 {
 	struct data_queue *queue;
 	u32 status;
@@ -765,14 +765,14 @@ static bool rt2800pci_txdone(struct rt2x00_dev *rt2x00dev)
 		 */
 		if (!rt2x00queue_for_each_entry(queue, Q_INDEX_DONE,
 						Q_INDEX, &status,
-						rt2800pci_txdone_find_entry)) {
+						rt2800mmio_txdone_find_entry)) {
 			/*
 			 * We cannot match the tx status to any frame, so just
 			 * use the first one.
 			 */
 			if (!rt2x00queue_for_each_entry(queue, Q_INDEX_DONE,
 							Q_INDEX, &status,
-							rt2800pci_txdone_match_first)) {
+							rt2800mmio_txdone_match_first)) {
 				rt2x00_warn(rt2x00dev, "No frame found for TX status on queue %u, dropping\n",
 					    qid);
 				break;
@@ -784,7 +784,7 @@ static bool rt2800pci_txdone(struct rt2x00_dev *rt2x00dev)
 		 */
 		rt2x00queue_for_each_entry(queue, Q_INDEX_DONE,
 					   Q_INDEX, NULL,
-					   rt2800pci_txdone_release_entries);
+					   rt2800mmio_txdone_release_entries);
 
 		if (--max_tx_done == 0)
 			break;
@@ -793,8 +793,8 @@ static bool rt2800pci_txdone(struct rt2x00_dev *rt2x00dev)
 	return !max_tx_done;
 }
 
-static inline void rt2800pci_enable_interrupt(struct rt2x00_dev *rt2x00dev,
-					      struct rt2x00_field32 irq_field)
+static inline void rt2800mmio_enable_interrupt(struct rt2x00_dev *rt2x00dev,
+					       struct rt2x00_field32 irq_field)
 {
 	u32 reg;
 
@@ -809,10 +809,10 @@ static inline void rt2800pci_enable_interrupt(struct rt2x00_dev *rt2x00dev,
 	spin_unlock_irq(&rt2x00dev->irqmask_lock);
 }
 
-static void rt2800pci_txstatus_tasklet(unsigned long data)
+static void rt2800mmio_txstatus_tasklet(unsigned long data)
 {
 	struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
-	if (rt2800pci_txdone(rt2x00dev))
+	if (rt2800mmio_txdone(rt2x00dev))
 		tasklet_schedule(&rt2x00dev->txstatus_tasklet);
 
 	/*
@@ -822,15 +822,15 @@ static void rt2800pci_txstatus_tasklet(unsigned long data)
 	 */
 }
 
-static void rt2800pci_pretbtt_tasklet(unsigned long data)
+static void rt2800mmio_pretbtt_tasklet(unsigned long data)
 {
 	struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
 	rt2x00lib_pretbtt(rt2x00dev);
 	if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
-		rt2800pci_enable_interrupt(rt2x00dev, INT_MASK_CSR_PRE_TBTT);
+		rt2800mmio_enable_interrupt(rt2x00dev, INT_MASK_CSR_PRE_TBTT);
 }
 
-static void rt2800pci_tbtt_tasklet(unsigned long data)
+static void rt2800mmio_tbtt_tasklet(unsigned long data)
 {
 	struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
 	struct rt2800_drv_data *drv_data = rt2x00dev->drv_data;
@@ -861,27 +861,28 @@ static void rt2800pci_tbtt_tasklet(unsigned long data)
 	}
 
 	if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
-		rt2800pci_enable_interrupt(rt2x00dev, INT_MASK_CSR_TBTT);
+		rt2800mmio_enable_interrupt(rt2x00dev, INT_MASK_CSR_TBTT);
 }
 
-static void rt2800pci_rxdone_tasklet(unsigned long data)
+static void rt2800mmio_rxdone_tasklet(unsigned long data)
 {
 	struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
 	if (rt2x00mmio_rxdone(rt2x00dev))
 		tasklet_schedule(&rt2x00dev->rxdone_tasklet);
 	else if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
-		rt2800pci_enable_interrupt(rt2x00dev, INT_MASK_CSR_RX_DONE);
+		rt2800mmio_enable_interrupt(rt2x00dev, INT_MASK_CSR_RX_DONE);
 }
 
-static void rt2800pci_autowake_tasklet(unsigned long data)
+static void rt2800mmio_autowake_tasklet(unsigned long data)
 {
 	struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
-	rt2800pci_wakeup(rt2x00dev);
+	rt2800mmio_wakeup(rt2x00dev);
 	if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
-		rt2800pci_enable_interrupt(rt2x00dev, INT_MASK_CSR_AUTO_WAKEUP);
+		rt2800mmio_enable_interrupt(rt2x00dev,
+					    INT_MASK_CSR_AUTO_WAKEUP);
 }
 
-static void rt2800pci_txstatus_interrupt(struct rt2x00_dev *rt2x00dev)
+static void rt2800mmio_txstatus_interrupt(struct rt2x00_dev *rt2x00dev)
 {
 	u32 status;
 	int i;
@@ -920,7 +921,7 @@ static void rt2800pci_txstatus_interrupt(struct rt2x00_dev *rt2x00dev)
 	tasklet_schedule(&rt2x00dev->txstatus_tasklet);
 }
 
-static irqreturn_t rt2800pci_interrupt(int irq, void *dev_instance)
+static irqreturn_t rt2800mmio_interrupt(int irq, void *dev_instance)
 {
 	struct rt2x00_dev *rt2x00dev = dev_instance;
 	u32 reg, mask;
@@ -943,7 +944,7 @@ static irqreturn_t rt2800pci_interrupt(int irq, void *dev_instance)
 	mask = ~reg;
 
 	if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TX_FIFO_STATUS)) {
-		rt2800pci_txstatus_interrupt(rt2x00dev);
+		rt2800mmio_txstatus_interrupt(rt2x00dev);
 		/*
 		 * Never disable the TX_FIFO_STATUS interrupt.
 		 */
@@ -1035,12 +1036,12 @@ static const struct rt2800_ops rt2800pci_rt2800_ops = {
 };
 
 static const struct rt2x00lib_ops rt2800pci_rt2x00_ops = {
-	.irq_handler		= rt2800pci_interrupt,
-	.txstatus_tasklet	= rt2800pci_txstatus_tasklet,
-	.pretbtt_tasklet	= rt2800pci_pretbtt_tasklet,
-	.tbtt_tasklet		= rt2800pci_tbtt_tasklet,
-	.rxdone_tasklet		= rt2800pci_rxdone_tasklet,
-	.autowake_tasklet	= rt2800pci_autowake_tasklet,
+	.irq_handler		= rt2800mmio_interrupt,
+	.txstatus_tasklet	= rt2800mmio_txstatus_tasklet,
+	.pretbtt_tasklet	= rt2800mmio_pretbtt_tasklet,
+	.tbtt_tasklet		= rt2800mmio_tbtt_tasklet,
+	.rxdone_tasklet		= rt2800mmio_rxdone_tasklet,
+	.autowake_tasklet	= rt2800mmio_autowake_tasklet,
 	.probe_hw		= rt2800_probe_hw,
 	.get_firmware_name	= rt2800pci_get_firmware_name,
 	.check_firmware		= rt2800_check_firmware,
-- 
cgit 


From 8d03e77218ff4bc59e4645438acbd3c5c7e0f654 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:21 +0200
Subject: rt2x00: rt2800pci: move interrupt functions to the rt2800mmio module

Move the functions into a separate module, in order
to make those usable from other modules.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800mmio.c | 396 +++++++++++++++++++++++++++++++
 drivers/net/wireless/rt2x00/rt2800mmio.h |   9 +
 drivers/net/wireless/rt2x00/rt2800pci.c  | 388 ------------------------------
 3 files changed, 405 insertions(+), 388 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800mmio.c b/drivers/net/wireless/rt2x00/rt2800mmio.c
index 32b8e5058867..bfae4f03a522 100644
--- a/drivers/net/wireless/rt2x00/rt2800mmio.c
+++ b/drivers/net/wireless/rt2x00/rt2800mmio.c
@@ -34,6 +34,7 @@
 
 #include "rt2x00.h"
 #include "rt2x00mmio.h"
+#include "rt2800.h"
 #include "rt2800lib.h"
 #include "rt2800mmio.h"
 
@@ -156,6 +157,401 @@ void rt2800mmio_fill_rxdone(struct queue_entry *entry,
 }
 EXPORT_SYMBOL_GPL(rt2800mmio_fill_rxdone);
 
+/*
+ * Interrupt functions.
+ */
+static void rt2800mmio_wakeup(struct rt2x00_dev *rt2x00dev)
+{
+	struct ieee80211_conf conf = { .flags = 0 };
+	struct rt2x00lib_conf libconf = { .conf = &conf };
+
+	rt2800_config(rt2x00dev, &libconf, IEEE80211_CONF_CHANGE_PS);
+}
+
+static bool rt2800mmio_txdone_entry_check(struct queue_entry *entry, u32 status)
+{
+	__le32 *txwi;
+	u32 word;
+	int wcid, tx_wcid;
+
+	wcid = rt2x00_get_field32(status, TX_STA_FIFO_WCID);
+
+	txwi = rt2800_drv_get_txwi(entry);
+	rt2x00_desc_read(txwi, 1, &word);
+	tx_wcid = rt2x00_get_field32(word, TXWI_W1_WIRELESS_CLI_ID);
+
+	return (tx_wcid == wcid);
+}
+
+static bool rt2800mmio_txdone_find_entry(struct queue_entry *entry, void *data)
+{
+	u32 status = *(u32 *)data;
+
+	/*
+	 * rt2800pci hardware might reorder frames when exchanging traffic
+	 * with multiple BA enabled STAs.
+	 *
+	 * For example, a tx queue
+	 *    [ STA1 | STA2 | STA1 | STA2 ]
+	 * can result in tx status reports
+	 *    [ STA1 | STA1 | STA2 | STA2 ]
+	 * when the hw decides to aggregate the frames for STA1 into one AMPDU.
+	 *
+	 * To mitigate this effect, associate the tx status to the first frame
+	 * in the tx queue with a matching wcid.
+	 */
+	if (rt2800mmio_txdone_entry_check(entry, status) &&
+	    !test_bit(ENTRY_DATA_STATUS_SET, &entry->flags)) {
+		/*
+		 * Got a matching frame, associate the tx status with
+		 * the frame
+		 */
+		entry->status = status;
+		set_bit(ENTRY_DATA_STATUS_SET, &entry->flags);
+		return true;
+	}
+
+	/* Check the next frame */
+	return false;
+}
+
+static bool rt2800mmio_txdone_match_first(struct queue_entry *entry, void *data)
+{
+	u32 status = *(u32 *)data;
+
+	/*
+	 * Find the first frame without tx status and assign this status to it
+	 * regardless if it matches or not.
+	 */
+	if (!test_bit(ENTRY_DATA_STATUS_SET, &entry->flags)) {
+		/*
+		 * Got a matching frame, associate the tx status with
+		 * the frame
+		 */
+		entry->status = status;
+		set_bit(ENTRY_DATA_STATUS_SET, &entry->flags);
+		return true;
+	}
+
+	/* Check the next frame */
+	return false;
+}
+static bool rt2800mmio_txdone_release_entries(struct queue_entry *entry,
+					      void *data)
+{
+	if (test_bit(ENTRY_DATA_STATUS_SET, &entry->flags)) {
+		rt2800_txdone_entry(entry, entry->status,
+				    rt2800mmio_get_txwi(entry));
+		return false;
+	}
+
+	/* No more frames to release */
+	return true;
+}
+
+static bool rt2800mmio_txdone(struct rt2x00_dev *rt2x00dev)
+{
+	struct data_queue *queue;
+	u32 status;
+	u8 qid;
+	int max_tx_done = 16;
+
+	while (kfifo_get(&rt2x00dev->txstatus_fifo, &status)) {
+		qid = rt2x00_get_field32(status, TX_STA_FIFO_PID_QUEUE);
+		if (unlikely(qid >= QID_RX)) {
+			/*
+			 * Unknown queue, this shouldn't happen. Just drop
+			 * this tx status.
+			 */
+			rt2x00_warn(rt2x00dev, "Got TX status report with unexpected pid %u, dropping\n",
+				    qid);
+			break;
+		}
+
+		queue = rt2x00queue_get_tx_queue(rt2x00dev, qid);
+		if (unlikely(queue == NULL)) {
+			/*
+			 * The queue is NULL, this shouldn't happen. Stop
+			 * processing here and drop the tx status
+			 */
+			rt2x00_warn(rt2x00dev, "Got TX status for an unavailable queue %u, dropping\n",
+				    qid);
+			break;
+		}
+
+		if (unlikely(rt2x00queue_empty(queue))) {
+			/*
+			 * The queue is empty. Stop processing here
+			 * and drop the tx status.
+			 */
+			rt2x00_warn(rt2x00dev, "Got TX status for an empty queue %u, dropping\n",
+				    qid);
+			break;
+		}
+
+		/*
+		 * Let's associate this tx status with the first
+		 * matching frame.
+		 */
+		if (!rt2x00queue_for_each_entry(queue, Q_INDEX_DONE,
+						Q_INDEX, &status,
+						rt2800mmio_txdone_find_entry)) {
+			/*
+			 * We cannot match the tx status to any frame, so just
+			 * use the first one.
+			 */
+			if (!rt2x00queue_for_each_entry(queue, Q_INDEX_DONE,
+							Q_INDEX, &status,
+							rt2800mmio_txdone_match_first)) {
+				rt2x00_warn(rt2x00dev, "No frame found for TX status on queue %u, dropping\n",
+					    qid);
+				break;
+			}
+		}
+
+		/*
+		 * Release all frames with a valid tx status.
+		 */
+		rt2x00queue_for_each_entry(queue, Q_INDEX_DONE,
+					   Q_INDEX, NULL,
+					   rt2800mmio_txdone_release_entries);
+
+		if (--max_tx_done == 0)
+			break;
+	}
+
+	return !max_tx_done;
+}
+
+static inline void rt2800mmio_enable_interrupt(struct rt2x00_dev *rt2x00dev,
+					       struct rt2x00_field32 irq_field)
+{
+	u32 reg;
+
+	/*
+	 * Enable a single interrupt. The interrupt mask register
+	 * access needs locking.
+	 */
+	spin_lock_irq(&rt2x00dev->irqmask_lock);
+	rt2x00mmio_register_read(rt2x00dev, INT_MASK_CSR, &reg);
+	rt2x00_set_field32(&reg, irq_field, 1);
+	rt2x00mmio_register_write(rt2x00dev, INT_MASK_CSR, reg);
+	spin_unlock_irq(&rt2x00dev->irqmask_lock);
+}
+
+void rt2800mmio_txstatus_tasklet(unsigned long data)
+{
+	struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
+	if (rt2800mmio_txdone(rt2x00dev))
+		tasklet_schedule(&rt2x00dev->txstatus_tasklet);
+
+	/*
+	 * No need to enable the tx status interrupt here as we always
+	 * leave it enabled to minimize the possibility of a tx status
+	 * register overflow. See comment in interrupt handler.
+	 */
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_txstatus_tasklet);
+
+void rt2800mmio_pretbtt_tasklet(unsigned long data)
+{
+	struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
+	rt2x00lib_pretbtt(rt2x00dev);
+	if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
+		rt2800mmio_enable_interrupt(rt2x00dev, INT_MASK_CSR_PRE_TBTT);
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_pretbtt_tasklet);
+
+void rt2800mmio_tbtt_tasklet(unsigned long data)
+{
+	struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
+	struct rt2800_drv_data *drv_data = rt2x00dev->drv_data;
+	u32 reg;
+
+	rt2x00lib_beacondone(rt2x00dev);
+
+	if (rt2x00dev->intf_ap_count) {
+		/*
+		 * The rt2800pci hardware tbtt timer is off by 1us per tbtt
+		 * causing beacon skew and as a result causing problems with
+		 * some powersaving clients over time. Shorten the beacon
+		 * interval every 64 beacons by 64us to mitigate this effect.
+		 */
+		if (drv_data->tbtt_tick == (BCN_TBTT_OFFSET - 2)) {
+			rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
+			rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_INTERVAL,
+					   (rt2x00dev->beacon_int * 16) - 1);
+			rt2x00mmio_register_write(rt2x00dev, BCN_TIME_CFG, reg);
+		} else if (drv_data->tbtt_tick == (BCN_TBTT_OFFSET - 1)) {
+			rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
+			rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_INTERVAL,
+					   (rt2x00dev->beacon_int * 16));
+			rt2x00mmio_register_write(rt2x00dev, BCN_TIME_CFG, reg);
+		}
+		drv_data->tbtt_tick++;
+		drv_data->tbtt_tick %= BCN_TBTT_OFFSET;
+	}
+
+	if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
+		rt2800mmio_enable_interrupt(rt2x00dev, INT_MASK_CSR_TBTT);
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_tbtt_tasklet);
+
+void rt2800mmio_rxdone_tasklet(unsigned long data)
+{
+	struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
+	if (rt2x00mmio_rxdone(rt2x00dev))
+		tasklet_schedule(&rt2x00dev->rxdone_tasklet);
+	else if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
+		rt2800mmio_enable_interrupt(rt2x00dev, INT_MASK_CSR_RX_DONE);
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_rxdone_tasklet);
+
+void rt2800mmio_autowake_tasklet(unsigned long data)
+{
+	struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
+	rt2800mmio_wakeup(rt2x00dev);
+	if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
+		rt2800mmio_enable_interrupt(rt2x00dev,
+					    INT_MASK_CSR_AUTO_WAKEUP);
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_autowake_tasklet);
+
+static void rt2800mmio_txstatus_interrupt(struct rt2x00_dev *rt2x00dev)
+{
+	u32 status;
+	int i;
+
+	/*
+	 * The TX_FIFO_STATUS interrupt needs special care. We should
+	 * read TX_STA_FIFO but we should do it immediately as otherwise
+	 * the register can overflow and we would lose status reports.
+	 *
+	 * Hence, read the TX_STA_FIFO register and copy all tx status
+	 * reports into a kernel FIFO which is handled in the txstatus
+	 * tasklet. We use a tasklet to process the tx status reports
+	 * because we can schedule the tasklet multiple times (when the
+	 * interrupt fires again during tx status processing).
+	 *
+	 * Furthermore we don't disable the TX_FIFO_STATUS
+	 * interrupt here but leave it enabled so that the TX_STA_FIFO
+	 * can also be read while the tx status tasklet gets executed.
+	 *
+	 * Since we have only one producer and one consumer we don't
+	 * need to lock the kfifo.
+	 */
+	for (i = 0; i < rt2x00dev->tx->limit; i++) {
+		rt2x00mmio_register_read(rt2x00dev, TX_STA_FIFO, &status);
+
+		if (!rt2x00_get_field32(status, TX_STA_FIFO_VALID))
+			break;
+
+		if (!kfifo_put(&rt2x00dev->txstatus_fifo, &status)) {
+			rt2x00_warn(rt2x00dev, "TX status FIFO overrun, drop tx status report\n");
+			break;
+		}
+	}
+
+	/* Schedule the tasklet for processing the tx status. */
+	tasklet_schedule(&rt2x00dev->txstatus_tasklet);
+}
+
+irqreturn_t rt2800mmio_interrupt(int irq, void *dev_instance)
+{
+	struct rt2x00_dev *rt2x00dev = dev_instance;
+	u32 reg, mask;
+
+	/* Read status and ACK all interrupts */
+	rt2x00mmio_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
+	rt2x00mmio_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
+
+	if (!reg)
+		return IRQ_NONE;
+
+	if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
+		return IRQ_HANDLED;
+
+	/*
+	 * Since INT_MASK_CSR and INT_SOURCE_CSR use the same bits
+	 * for interrupts and interrupt masks we can just use the value of
+	 * INT_SOURCE_CSR to create the interrupt mask.
+	 */
+	mask = ~reg;
+
+	if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TX_FIFO_STATUS)) {
+		rt2800mmio_txstatus_interrupt(rt2x00dev);
+		/*
+		 * Never disable the TX_FIFO_STATUS interrupt.
+		 */
+		rt2x00_set_field32(&mask, INT_MASK_CSR_TX_FIFO_STATUS, 1);
+	}
+
+	if (rt2x00_get_field32(reg, INT_SOURCE_CSR_PRE_TBTT))
+		tasklet_hi_schedule(&rt2x00dev->pretbtt_tasklet);
+
+	if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TBTT))
+		tasklet_hi_schedule(&rt2x00dev->tbtt_tasklet);
+
+	if (rt2x00_get_field32(reg, INT_SOURCE_CSR_RX_DONE))
+		tasklet_schedule(&rt2x00dev->rxdone_tasklet);
+
+	if (rt2x00_get_field32(reg, INT_SOURCE_CSR_AUTO_WAKEUP))
+		tasklet_schedule(&rt2x00dev->autowake_tasklet);
+
+	/*
+	 * Disable all interrupts for which a tasklet was scheduled right now,
+	 * the tasklet will reenable the appropriate interrupts.
+	 */
+	spin_lock(&rt2x00dev->irqmask_lock);
+	rt2x00mmio_register_read(rt2x00dev, INT_MASK_CSR, &reg);
+	reg &= mask;
+	rt2x00mmio_register_write(rt2x00dev, INT_MASK_CSR, reg);
+	spin_unlock(&rt2x00dev->irqmask_lock);
+
+	return IRQ_HANDLED;
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_interrupt);
+
+void rt2800mmio_toggle_irq(struct rt2x00_dev *rt2x00dev,
+			   enum dev_state state)
+{
+	u32 reg;
+	unsigned long flags;
+
+	/*
+	 * When interrupts are being enabled, the interrupt registers
+	 * should clear the register to assure a clean state.
+	 */
+	if (state == STATE_RADIO_IRQ_ON) {
+		rt2x00mmio_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
+		rt2x00mmio_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
+	}
+
+	spin_lock_irqsave(&rt2x00dev->irqmask_lock, flags);
+	reg = 0;
+	if (state == STATE_RADIO_IRQ_ON) {
+		rt2x00_set_field32(&reg, INT_MASK_CSR_RX_DONE, 1);
+		rt2x00_set_field32(&reg, INT_MASK_CSR_TBTT, 1);
+		rt2x00_set_field32(&reg, INT_MASK_CSR_PRE_TBTT, 1);
+		rt2x00_set_field32(&reg, INT_MASK_CSR_TX_FIFO_STATUS, 1);
+		rt2x00_set_field32(&reg, INT_MASK_CSR_AUTO_WAKEUP, 1);
+	}
+	rt2x00mmio_register_write(rt2x00dev, INT_MASK_CSR, reg);
+	spin_unlock_irqrestore(&rt2x00dev->irqmask_lock, flags);
+
+	if (state == STATE_RADIO_IRQ_OFF) {
+		/*
+		 * Wait for possibly running tasklets to finish.
+		 */
+		tasklet_kill(&rt2x00dev->txstatus_tasklet);
+		tasklet_kill(&rt2x00dev->rxdone_tasklet);
+		tasklet_kill(&rt2x00dev->autowake_tasklet);
+		tasklet_kill(&rt2x00dev->tbtt_tasklet);
+		tasklet_kill(&rt2x00dev->pretbtt_tasklet);
+	}
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_toggle_irq);
+
 MODULE_AUTHOR(DRV_PROJECT);
 MODULE_VERSION(DRV_VERSION);
 MODULE_DESCRIPTION("rt2800 MMIO library");
diff --git a/drivers/net/wireless/rt2x00/rt2800mmio.h b/drivers/net/wireless/rt2x00/rt2800mmio.h
index 71e3d2268436..30e66ab9af37 100644
--- a/drivers/net/wireless/rt2x00/rt2800mmio.h
+++ b/drivers/net/wireless/rt2x00/rt2800mmio.h
@@ -128,5 +128,14 @@ void rt2800mmio_write_tx_desc(struct queue_entry *entry,
 void rt2800mmio_fill_rxdone(struct queue_entry *entry,
 			    struct rxdone_entry_desc *rxdesc);
 
+/* Interrupt functions */
+void rt2800mmio_txstatus_tasklet(unsigned long data);
+void rt2800mmio_pretbtt_tasklet(unsigned long data);
+void rt2800mmio_tbtt_tasklet(unsigned long data);
+void rt2800mmio_rxdone_tasklet(unsigned long data);
+void rt2800mmio_autowake_tasklet(unsigned long data);
+irqreturn_t rt2800mmio_interrupt(int irq, void *dev_instance);
+void rt2800mmio_toggle_irq(struct rt2x00_dev *rt2x00dev,
+			   enum dev_state state);
 
 #endif /* RT2800MMIO_H */
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index a829ce59e026..12454b0a6383 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -448,45 +448,6 @@ static int rt2800pci_init_queues(struct rt2x00_dev *rt2x00dev)
 /*
  * Device state switch handlers.
  */
-static void rt2800mmio_toggle_irq(struct rt2x00_dev *rt2x00dev,
-				  enum dev_state state)
-{
-	u32 reg;
-	unsigned long flags;
-
-	/*
-	 * When interrupts are being enabled, the interrupt registers
-	 * should clear the register to assure a clean state.
-	 */
-	if (state == STATE_RADIO_IRQ_ON) {
-		rt2x00mmio_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
-		rt2x00mmio_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
-	}
-
-	spin_lock_irqsave(&rt2x00dev->irqmask_lock, flags);
-	reg = 0;
-	if (state == STATE_RADIO_IRQ_ON) {
-		rt2x00_set_field32(&reg, INT_MASK_CSR_RX_DONE, 1);
-		rt2x00_set_field32(&reg, INT_MASK_CSR_TBTT, 1);
-		rt2x00_set_field32(&reg, INT_MASK_CSR_PRE_TBTT, 1);
-		rt2x00_set_field32(&reg, INT_MASK_CSR_TX_FIFO_STATUS, 1);
-		rt2x00_set_field32(&reg, INT_MASK_CSR_AUTO_WAKEUP, 1);
-	}
-	rt2x00mmio_register_write(rt2x00dev, INT_MASK_CSR, reg);
-	spin_unlock_irqrestore(&rt2x00dev->irqmask_lock, flags);
-
-	if (state == STATE_RADIO_IRQ_OFF) {
-		/*
-		 * Wait for possibly running tasklets to finish.
-		 */
-		tasklet_kill(&rt2x00dev->txstatus_tasklet);
-		tasklet_kill(&rt2x00dev->rxdone_tasklet);
-		tasklet_kill(&rt2x00dev->autowake_tasklet);
-		tasklet_kill(&rt2x00dev->tbtt_tasklet);
-		tasklet_kill(&rt2x00dev->pretbtt_tasklet);
-	}
-}
-
 static int rt2800pci_init_registers(struct rt2x00_dev *rt2x00dev)
 {
 	u32 reg;
@@ -627,355 +588,6 @@ static int rt2800pci_set_device_state(struct rt2x00_dev *rt2x00dev,
 	return retval;
 }
 
-/*
- * Interrupt functions.
- */
-static void rt2800mmio_wakeup(struct rt2x00_dev *rt2x00dev)
-{
-	struct ieee80211_conf conf = { .flags = 0 };
-	struct rt2x00lib_conf libconf = { .conf = &conf };
-
-	rt2800_config(rt2x00dev, &libconf, IEEE80211_CONF_CHANGE_PS);
-}
-
-static bool rt2800mmio_txdone_entry_check(struct queue_entry *entry, u32 status)
-{
-	__le32 *txwi;
-	u32 word;
-	int wcid, tx_wcid;
-
-	wcid = rt2x00_get_field32(status, TX_STA_FIFO_WCID);
-
-	txwi = rt2800_drv_get_txwi(entry);
-	rt2x00_desc_read(txwi, 1, &word);
-	tx_wcid = rt2x00_get_field32(word, TXWI_W1_WIRELESS_CLI_ID);
-
-	return (tx_wcid == wcid);
-}
-
-static bool rt2800mmio_txdone_find_entry(struct queue_entry *entry, void *data)
-{
-	u32 status = *(u32 *)data;
-
-	/*
-	 * rt2800pci hardware might reorder frames when exchanging traffic
-	 * with multiple BA enabled STAs.
-	 *
-	 * For example, a tx queue
-	 *    [ STA1 | STA2 | STA1 | STA2 ]
-	 * can result in tx status reports
-	 *    [ STA1 | STA1 | STA2 | STA2 ]
-	 * when the hw decides to aggregate the frames for STA1 into one AMPDU.
-	 *
-	 * To mitigate this effect, associate the tx status to the first frame
-	 * in the tx queue with a matching wcid.
-	 */
-	if (rt2800mmio_txdone_entry_check(entry, status) &&
-	    !test_bit(ENTRY_DATA_STATUS_SET, &entry->flags)) {
-		/*
-		 * Got a matching frame, associate the tx status with
-		 * the frame
-		 */
-		entry->status = status;
-		set_bit(ENTRY_DATA_STATUS_SET, &entry->flags);
-		return true;
-	}
-
-	/* Check the next frame */
-	return false;
-}
-
-static bool rt2800mmio_txdone_match_first(struct queue_entry *entry, void *data)
-{
-	u32 status = *(u32 *)data;
-
-	/*
-	 * Find the first frame without tx status and assign this status to it
-	 * regardless if it matches or not.
-	 */
-	if (!test_bit(ENTRY_DATA_STATUS_SET, &entry->flags)) {
-		/*
-		 * Got a matching frame, associate the tx status with
-		 * the frame
-		 */
-		entry->status = status;
-		set_bit(ENTRY_DATA_STATUS_SET, &entry->flags);
-		return true;
-	}
-
-	/* Check the next frame */
-	return false;
-}
-static bool rt2800mmio_txdone_release_entries(struct queue_entry *entry,
-					      void *data)
-{
-	if (test_bit(ENTRY_DATA_STATUS_SET, &entry->flags)) {
-		rt2800_txdone_entry(entry, entry->status,
-				    rt2800mmio_get_txwi(entry));
-		return false;
-	}
-
-	/* No more frames to release */
-	return true;
-}
-
-static bool rt2800mmio_txdone(struct rt2x00_dev *rt2x00dev)
-{
-	struct data_queue *queue;
-	u32 status;
-	u8 qid;
-	int max_tx_done = 16;
-
-	while (kfifo_get(&rt2x00dev->txstatus_fifo, &status)) {
-		qid = rt2x00_get_field32(status, TX_STA_FIFO_PID_QUEUE);
-		if (unlikely(qid >= QID_RX)) {
-			/*
-			 * Unknown queue, this shouldn't happen. Just drop
-			 * this tx status.
-			 */
-			rt2x00_warn(rt2x00dev, "Got TX status report with unexpected pid %u, dropping\n",
-				    qid);
-			break;
-		}
-
-		queue = rt2x00queue_get_tx_queue(rt2x00dev, qid);
-		if (unlikely(queue == NULL)) {
-			/*
-			 * The queue is NULL, this shouldn't happen. Stop
-			 * processing here and drop the tx status
-			 */
-			rt2x00_warn(rt2x00dev, "Got TX status for an unavailable queue %u, dropping\n",
-				    qid);
-			break;
-		}
-
-		if (unlikely(rt2x00queue_empty(queue))) {
-			/*
-			 * The queue is empty. Stop processing here
-			 * and drop the tx status.
-			 */
-			rt2x00_warn(rt2x00dev, "Got TX status for an empty queue %u, dropping\n",
-				    qid);
-			break;
-		}
-
-		/*
-		 * Let's associate this tx status with the first
-		 * matching frame.
-		 */
-		if (!rt2x00queue_for_each_entry(queue, Q_INDEX_DONE,
-						Q_INDEX, &status,
-						rt2800mmio_txdone_find_entry)) {
-			/*
-			 * We cannot match the tx status to any frame, so just
-			 * use the first one.
-			 */
-			if (!rt2x00queue_for_each_entry(queue, Q_INDEX_DONE,
-							Q_INDEX, &status,
-							rt2800mmio_txdone_match_first)) {
-				rt2x00_warn(rt2x00dev, "No frame found for TX status on queue %u, dropping\n",
-					    qid);
-				break;
-			}
-		}
-
-		/*
-		 * Release all frames with a valid tx status.
-		 */
-		rt2x00queue_for_each_entry(queue, Q_INDEX_DONE,
-					   Q_INDEX, NULL,
-					   rt2800mmio_txdone_release_entries);
-
-		if (--max_tx_done == 0)
-			break;
-	}
-
-	return !max_tx_done;
-}
-
-static inline void rt2800mmio_enable_interrupt(struct rt2x00_dev *rt2x00dev,
-					       struct rt2x00_field32 irq_field)
-{
-	u32 reg;
-
-	/*
-	 * Enable a single interrupt. The interrupt mask register
-	 * access needs locking.
-	 */
-	spin_lock_irq(&rt2x00dev->irqmask_lock);
-	rt2x00mmio_register_read(rt2x00dev, INT_MASK_CSR, &reg);
-	rt2x00_set_field32(&reg, irq_field, 1);
-	rt2x00mmio_register_write(rt2x00dev, INT_MASK_CSR, reg);
-	spin_unlock_irq(&rt2x00dev->irqmask_lock);
-}
-
-static void rt2800mmio_txstatus_tasklet(unsigned long data)
-{
-	struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
-	if (rt2800mmio_txdone(rt2x00dev))
-		tasklet_schedule(&rt2x00dev->txstatus_tasklet);
-
-	/*
-	 * No need to enable the tx status interrupt here as we always
-	 * leave it enabled to minimize the possibility of a tx status
-	 * register overflow. See comment in interrupt handler.
-	 */
-}
-
-static void rt2800mmio_pretbtt_tasklet(unsigned long data)
-{
-	struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
-	rt2x00lib_pretbtt(rt2x00dev);
-	if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
-		rt2800mmio_enable_interrupt(rt2x00dev, INT_MASK_CSR_PRE_TBTT);
-}
-
-static void rt2800mmio_tbtt_tasklet(unsigned long data)
-{
-	struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
-	struct rt2800_drv_data *drv_data = rt2x00dev->drv_data;
-	u32 reg;
-
-	rt2x00lib_beacondone(rt2x00dev);
-
-	if (rt2x00dev->intf_ap_count) {
-		/*
-		 * The rt2800pci hardware tbtt timer is off by 1us per tbtt
-		 * causing beacon skew and as a result causing problems with
-		 * some powersaving clients over time. Shorten the beacon
-		 * interval every 64 beacons by 64us to mitigate this effect.
-		 */
-		if (drv_data->tbtt_tick == (BCN_TBTT_OFFSET - 2)) {
-			rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
-			rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_INTERVAL,
-					   (rt2x00dev->beacon_int * 16) - 1);
-			rt2x00mmio_register_write(rt2x00dev, BCN_TIME_CFG, reg);
-		} else if (drv_data->tbtt_tick == (BCN_TBTT_OFFSET - 1)) {
-			rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
-			rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_INTERVAL,
-					   (rt2x00dev->beacon_int * 16));
-			rt2x00mmio_register_write(rt2x00dev, BCN_TIME_CFG, reg);
-		}
-		drv_data->tbtt_tick++;
-		drv_data->tbtt_tick %= BCN_TBTT_OFFSET;
-	}
-
-	if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
-		rt2800mmio_enable_interrupt(rt2x00dev, INT_MASK_CSR_TBTT);
-}
-
-static void rt2800mmio_rxdone_tasklet(unsigned long data)
-{
-	struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
-	if (rt2x00mmio_rxdone(rt2x00dev))
-		tasklet_schedule(&rt2x00dev->rxdone_tasklet);
-	else if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
-		rt2800mmio_enable_interrupt(rt2x00dev, INT_MASK_CSR_RX_DONE);
-}
-
-static void rt2800mmio_autowake_tasklet(unsigned long data)
-{
-	struct rt2x00_dev *rt2x00dev = (struct rt2x00_dev *)data;
-	rt2800mmio_wakeup(rt2x00dev);
-	if (test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
-		rt2800mmio_enable_interrupt(rt2x00dev,
-					    INT_MASK_CSR_AUTO_WAKEUP);
-}
-
-static void rt2800mmio_txstatus_interrupt(struct rt2x00_dev *rt2x00dev)
-{
-	u32 status;
-	int i;
-
-	/*
-	 * The TX_FIFO_STATUS interrupt needs special care. We should
-	 * read TX_STA_FIFO but we should do it immediately as otherwise
-	 * the register can overflow and we would lose status reports.
-	 *
-	 * Hence, read the TX_STA_FIFO register and copy all tx status
-	 * reports into a kernel FIFO which is handled in the txstatus
-	 * tasklet. We use a tasklet to process the tx status reports
-	 * because we can schedule the tasklet multiple times (when the
-	 * interrupt fires again during tx status processing).
-	 *
-	 * Furthermore we don't disable the TX_FIFO_STATUS
-	 * interrupt here but leave it enabled so that the TX_STA_FIFO
-	 * can also be read while the tx status tasklet gets executed.
-	 *
-	 * Since we have only one producer and one consumer we don't
-	 * need to lock the kfifo.
-	 */
-	for (i = 0; i < rt2x00dev->tx->limit; i++) {
-		rt2x00mmio_register_read(rt2x00dev, TX_STA_FIFO, &status);
-
-		if (!rt2x00_get_field32(status, TX_STA_FIFO_VALID))
-			break;
-
-		if (!kfifo_put(&rt2x00dev->txstatus_fifo, &status)) {
-			rt2x00_warn(rt2x00dev, "TX status FIFO overrun, drop tx status report\n");
-			break;
-		}
-	}
-
-	/* Schedule the tasklet for processing the tx status. */
-	tasklet_schedule(&rt2x00dev->txstatus_tasklet);
-}
-
-static irqreturn_t rt2800mmio_interrupt(int irq, void *dev_instance)
-{
-	struct rt2x00_dev *rt2x00dev = dev_instance;
-	u32 reg, mask;
-
-	/* Read status and ACK all interrupts */
-	rt2x00mmio_register_read(rt2x00dev, INT_SOURCE_CSR, &reg);
-	rt2x00mmio_register_write(rt2x00dev, INT_SOURCE_CSR, reg);
-
-	if (!reg)
-		return IRQ_NONE;
-
-	if (!test_bit(DEVICE_STATE_ENABLED_RADIO, &rt2x00dev->flags))
-		return IRQ_HANDLED;
-
-	/*
-	 * Since INT_MASK_CSR and INT_SOURCE_CSR use the same bits
-	 * for interrupts and interrupt masks we can just use the value of
-	 * INT_SOURCE_CSR to create the interrupt mask.
-	 */
-	mask = ~reg;
-
-	if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TX_FIFO_STATUS)) {
-		rt2800mmio_txstatus_interrupt(rt2x00dev);
-		/*
-		 * Never disable the TX_FIFO_STATUS interrupt.
-		 */
-		rt2x00_set_field32(&mask, INT_MASK_CSR_TX_FIFO_STATUS, 1);
-	}
-
-	if (rt2x00_get_field32(reg, INT_SOURCE_CSR_PRE_TBTT))
-		tasklet_hi_schedule(&rt2x00dev->pretbtt_tasklet);
-
-	if (rt2x00_get_field32(reg, INT_SOURCE_CSR_TBTT))
-		tasklet_hi_schedule(&rt2x00dev->tbtt_tasklet);
-
-	if (rt2x00_get_field32(reg, INT_SOURCE_CSR_RX_DONE))
-		tasklet_schedule(&rt2x00dev->rxdone_tasklet);
-
-	if (rt2x00_get_field32(reg, INT_SOURCE_CSR_AUTO_WAKEUP))
-		tasklet_schedule(&rt2x00dev->autowake_tasklet);
-
-	/*
-	 * Disable all interrupts for which a tasklet was scheduled right now,
-	 * the tasklet will reenable the appropriate interrupts.
-	 */
-	spin_lock(&rt2x00dev->irqmask_lock);
-	rt2x00mmio_register_read(rt2x00dev, INT_MASK_CSR, &reg);
-	reg &= mask;
-	rt2x00mmio_register_write(rt2x00dev, INT_MASK_CSR, reg);
-	spin_unlock(&rt2x00dev->irqmask_lock);
-
-	return IRQ_HANDLED;
-}
-
 /*
  * Device probe functions.
  */
-- 
cgit 


From 51e62469eac296d39d57fb75f182e4ef8066f82f Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:22 +0200
Subject: rt2x00: rt2800pci: use rt2800mmio prefix for queue functions

The functions are used for devices with memory
mapped I/O and contain no PCI specific code at
all. Use rt2800mmio prefix instead of rt2800pci
in the function names to reflect that.

The patch contains no functional changes.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800pci.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 12454b0a6383..118f2d592a93 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -204,7 +204,7 @@ static inline int rt2800pci_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev)
 /*
  * Queue handlers.
  */
-static void rt2800pci_start_queue(struct data_queue *queue)
+static void rt2800mmio_start_queue(struct data_queue *queue)
 {
 	struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
 	u32 reg;
@@ -231,7 +231,7 @@ static void rt2800pci_start_queue(struct data_queue *queue)
 	}
 }
 
-static void rt2800pci_kick_queue(struct data_queue *queue)
+static void rt2800mmio_kick_queue(struct data_queue *queue)
 {
 	struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
 	struct queue_entry *entry;
@@ -255,7 +255,7 @@ static void rt2800pci_kick_queue(struct data_queue *queue)
 	}
 }
 
-static void rt2800pci_stop_queue(struct data_queue *queue)
+static void rt2800mmio_stop_queue(struct data_queue *queue)
 {
 	struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
 	u32 reg;
@@ -669,9 +669,9 @@ static const struct rt2x00lib_ops rt2800pci_rt2x00_ops = {
 	.link_tuner		= rt2800_link_tuner,
 	.gain_calibration	= rt2800_gain_calibration,
 	.vco_calibration	= rt2800_vco_calibration,
-	.start_queue		= rt2800pci_start_queue,
-	.kick_queue		= rt2800pci_kick_queue,
-	.stop_queue		= rt2800pci_stop_queue,
+	.start_queue		= rt2800mmio_start_queue,
+	.kick_queue		= rt2800mmio_kick_queue,
+	.stop_queue		= rt2800mmio_stop_queue,
 	.flush_queue		= rt2x00mmio_flush_queue,
 	.write_tx_desc		= rt2800mmio_write_tx_desc,
 	.write_tx_data		= rt2800_write_tx_data,
@@ -689,7 +689,7 @@ static const struct rt2x00lib_ops rt2800pci_rt2x00_ops = {
 	.sta_remove		= rt2800_sta_remove,
 };
 
-static void rt2800pci_queue_init(struct data_queue *queue)
+static void rt2800mmio_queue_init(struct data_queue *queue)
 {
 	struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
 	unsigned short txwi_size, rxwi_size;
@@ -739,7 +739,7 @@ static const struct rt2x00_ops rt2800pci_ops = {
 	.eeprom_size		= EEPROM_SIZE,
 	.rf_size		= RF_SIZE,
 	.tx_queues		= NUM_TX_QUEUES,
-	.queue_init		= rt2800pci_queue_init,
+	.queue_init		= rt2800mmio_queue_init,
 	.lib			= &rt2800pci_rt2x00_ops,
 	.drv			= &rt2800pci_rt2800_ops,
 	.hw			= &rt2800pci_mac80211_ops,
-- 
cgit 


From d5580ade2fec2a0d50ceee7a9ce44a35a4de133b Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:23 +0200
Subject: rt2x00: rt2800pci: move queue functions to the rt2800mmio module

Move the functions into a separate module, in order
to make those usable from other modules. Also move
the queue register offset macros from rt2800pci.h
into rt2800mmio.h.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800mmio.c | 137 +++++++++++++++++++++++++++++++
 drivers/net/wireless/rt2x00/rt2800mmio.h |  15 ++++
 drivers/net/wireless/rt2x00/rt2800pci.c  | 133 ------------------------------
 drivers/net/wireless/rt2x00/rt2800pci.h  |   9 --
 4 files changed, 152 insertions(+), 142 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800mmio.c b/drivers/net/wireless/rt2x00/rt2800mmio.c
index bfae4f03a522..c42bea56ec15 100644
--- a/drivers/net/wireless/rt2x00/rt2800mmio.c
+++ b/drivers/net/wireless/rt2x00/rt2800mmio.c
@@ -552,6 +552,143 @@ void rt2800mmio_toggle_irq(struct rt2x00_dev *rt2x00dev,
 }
 EXPORT_SYMBOL_GPL(rt2800mmio_toggle_irq);
 
+/*
+ * Queue handlers.
+ */
+void rt2800mmio_start_queue(struct data_queue *queue)
+{
+	struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
+	u32 reg;
+
+	switch (queue->qid) {
+	case QID_RX:
+		rt2x00mmio_register_read(rt2x00dev, MAC_SYS_CTRL, &reg);
+		rt2x00_set_field32(&reg, MAC_SYS_CTRL_ENABLE_RX, 1);
+		rt2x00mmio_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
+		break;
+	case QID_BEACON:
+		rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
+		rt2x00_set_field32(&reg, BCN_TIME_CFG_TSF_TICKING, 1);
+		rt2x00_set_field32(&reg, BCN_TIME_CFG_TBTT_ENABLE, 1);
+		rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_GEN, 1);
+		rt2x00mmio_register_write(rt2x00dev, BCN_TIME_CFG, reg);
+
+		rt2x00mmio_register_read(rt2x00dev, INT_TIMER_EN, &reg);
+		rt2x00_set_field32(&reg, INT_TIMER_EN_PRE_TBTT_TIMER, 1);
+		rt2x00mmio_register_write(rt2x00dev, INT_TIMER_EN, reg);
+		break;
+	default:
+		break;
+	}
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_start_queue);
+
+void rt2800mmio_kick_queue(struct data_queue *queue)
+{
+	struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
+	struct queue_entry *entry;
+
+	switch (queue->qid) {
+	case QID_AC_VO:
+	case QID_AC_VI:
+	case QID_AC_BE:
+	case QID_AC_BK:
+		entry = rt2x00queue_get_entry(queue, Q_INDEX);
+		rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX(queue->qid),
+					  entry->entry_idx);
+		break;
+	case QID_MGMT:
+		entry = rt2x00queue_get_entry(queue, Q_INDEX);
+		rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX(5),
+					  entry->entry_idx);
+		break;
+	default:
+		break;
+	}
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_kick_queue);
+
+void rt2800mmio_stop_queue(struct data_queue *queue)
+{
+	struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
+	u32 reg;
+
+	switch (queue->qid) {
+	case QID_RX:
+		rt2x00mmio_register_read(rt2x00dev, MAC_SYS_CTRL, &reg);
+		rt2x00_set_field32(&reg, MAC_SYS_CTRL_ENABLE_RX, 0);
+		rt2x00mmio_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
+		break;
+	case QID_BEACON:
+		rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
+		rt2x00_set_field32(&reg, BCN_TIME_CFG_TSF_TICKING, 0);
+		rt2x00_set_field32(&reg, BCN_TIME_CFG_TBTT_ENABLE, 0);
+		rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_GEN, 0);
+		rt2x00mmio_register_write(rt2x00dev, BCN_TIME_CFG, reg);
+
+		rt2x00mmio_register_read(rt2x00dev, INT_TIMER_EN, &reg);
+		rt2x00_set_field32(&reg, INT_TIMER_EN_PRE_TBTT_TIMER, 0);
+		rt2x00mmio_register_write(rt2x00dev, INT_TIMER_EN, reg);
+
+		/*
+		 * Wait for current invocation to finish. The tasklet
+		 * won't be scheduled anymore afterwards since we disabled
+		 * the TBTT and PRE TBTT timer.
+		 */
+		tasklet_kill(&rt2x00dev->tbtt_tasklet);
+		tasklet_kill(&rt2x00dev->pretbtt_tasklet);
+
+		break;
+	default:
+		break;
+	}
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_stop_queue);
+
+void rt2800mmio_queue_init(struct data_queue *queue)
+{
+	struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
+	unsigned short txwi_size, rxwi_size;
+
+	rt2800_get_txwi_rxwi_size(rt2x00dev, &txwi_size, &rxwi_size);
+
+	switch (queue->qid) {
+	case QID_RX:
+		queue->limit = 128;
+		queue->data_size = AGGREGATION_SIZE;
+		queue->desc_size = RXD_DESC_SIZE;
+		queue->winfo_size = rxwi_size;
+		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
+		break;
+
+	case QID_AC_VO:
+	case QID_AC_VI:
+	case QID_AC_BE:
+	case QID_AC_BK:
+		queue->limit = 64;
+		queue->data_size = AGGREGATION_SIZE;
+		queue->desc_size = TXD_DESC_SIZE;
+		queue->winfo_size = txwi_size;
+		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
+		break;
+
+	case QID_BEACON:
+		queue->limit = 8;
+		queue->data_size = 0; /* No DMA required for beacons */
+		queue->desc_size = TXD_DESC_SIZE;
+		queue->winfo_size = txwi_size;
+		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
+		break;
+
+	case QID_ATIM:
+		/* fallthrough */
+	default:
+		BUG();
+		break;
+	}
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_queue_init);
+
 MODULE_AUTHOR(DRV_PROJECT);
 MODULE_VERSION(DRV_VERSION);
 MODULE_DESCRIPTION("rt2800 MMIO library");
diff --git a/drivers/net/wireless/rt2x00/rt2800mmio.h b/drivers/net/wireless/rt2x00/rt2800mmio.h
index 30e66ab9af37..676df2e62d45 100644
--- a/drivers/net/wireless/rt2x00/rt2800mmio.h
+++ b/drivers/net/wireless/rt2x00/rt2800mmio.h
@@ -31,6 +31,15 @@
 #ifndef RT2800MMIO_H
 #define RT2800MMIO_H
 
+/*
+ * Queue register offset macros
+ */
+#define TX_QUEUE_REG_OFFSET	0x10
+#define TX_BASE_PTR(__x)	(TX_BASE_PTR0 + ((__x) * TX_QUEUE_REG_OFFSET))
+#define TX_MAX_CNT(__x)		(TX_MAX_CNT0 + ((__x) * TX_QUEUE_REG_OFFSET))
+#define TX_CTX_IDX(__x)		(TX_CTX_IDX0 + ((__x) * TX_QUEUE_REG_OFFSET))
+#define TX_DTX_IDX(__x)		(TX_DTX_IDX0 + ((__x) * TX_QUEUE_REG_OFFSET))
+
 /*
  * DMA descriptor defines.
  */
@@ -138,4 +147,10 @@ irqreturn_t rt2800mmio_interrupt(int irq, void *dev_instance);
 void rt2800mmio_toggle_irq(struct rt2x00_dev *rt2x00dev,
 			   enum dev_state state);
 
+/* Queue handlers */
+void rt2800mmio_start_queue(struct data_queue *queue);
+void rt2800mmio_kick_queue(struct data_queue *queue);
+void rt2800mmio_stop_queue(struct data_queue *queue);
+void rt2800mmio_queue_init(struct data_queue *queue);
+
 #endif /* RT2800MMIO_H */
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 118f2d592a93..d0e4ec50caec 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -201,96 +201,6 @@ static inline int rt2800pci_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev)
 }
 #endif /* CONFIG_PCI */
 
-/*
- * Queue handlers.
- */
-static void rt2800mmio_start_queue(struct data_queue *queue)
-{
-	struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
-	u32 reg;
-
-	switch (queue->qid) {
-	case QID_RX:
-		rt2x00mmio_register_read(rt2x00dev, MAC_SYS_CTRL, &reg);
-		rt2x00_set_field32(&reg, MAC_SYS_CTRL_ENABLE_RX, 1);
-		rt2x00mmio_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
-		break;
-	case QID_BEACON:
-		rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
-		rt2x00_set_field32(&reg, BCN_TIME_CFG_TSF_TICKING, 1);
-		rt2x00_set_field32(&reg, BCN_TIME_CFG_TBTT_ENABLE, 1);
-		rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_GEN, 1);
-		rt2x00mmio_register_write(rt2x00dev, BCN_TIME_CFG, reg);
-
-		rt2x00mmio_register_read(rt2x00dev, INT_TIMER_EN, &reg);
-		rt2x00_set_field32(&reg, INT_TIMER_EN_PRE_TBTT_TIMER, 1);
-		rt2x00mmio_register_write(rt2x00dev, INT_TIMER_EN, reg);
-		break;
-	default:
-		break;
-	}
-}
-
-static void rt2800mmio_kick_queue(struct data_queue *queue)
-{
-	struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
-	struct queue_entry *entry;
-
-	switch (queue->qid) {
-	case QID_AC_VO:
-	case QID_AC_VI:
-	case QID_AC_BE:
-	case QID_AC_BK:
-		entry = rt2x00queue_get_entry(queue, Q_INDEX);
-		rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX(queue->qid),
-					  entry->entry_idx);
-		break;
-	case QID_MGMT:
-		entry = rt2x00queue_get_entry(queue, Q_INDEX);
-		rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX(5),
-					  entry->entry_idx);
-		break;
-	default:
-		break;
-	}
-}
-
-static void rt2800mmio_stop_queue(struct data_queue *queue)
-{
-	struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
-	u32 reg;
-
-	switch (queue->qid) {
-	case QID_RX:
-		rt2x00mmio_register_read(rt2x00dev, MAC_SYS_CTRL, &reg);
-		rt2x00_set_field32(&reg, MAC_SYS_CTRL_ENABLE_RX, 0);
-		rt2x00mmio_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
-		break;
-	case QID_BEACON:
-		rt2x00mmio_register_read(rt2x00dev, BCN_TIME_CFG, &reg);
-		rt2x00_set_field32(&reg, BCN_TIME_CFG_TSF_TICKING, 0);
-		rt2x00_set_field32(&reg, BCN_TIME_CFG_TBTT_ENABLE, 0);
-		rt2x00_set_field32(&reg, BCN_TIME_CFG_BEACON_GEN, 0);
-		rt2x00mmio_register_write(rt2x00dev, BCN_TIME_CFG, reg);
-
-		rt2x00mmio_register_read(rt2x00dev, INT_TIMER_EN, &reg);
-		rt2x00_set_field32(&reg, INT_TIMER_EN_PRE_TBTT_TIMER, 0);
-		rt2x00mmio_register_write(rt2x00dev, INT_TIMER_EN, reg);
-
-		/*
-		 * Wait for current invocation to finish. The tasklet
-		 * won't be scheduled anymore afterwards since we disabled
-		 * the TBTT and PRE TBTT timer.
-		 */
-		tasklet_kill(&rt2x00dev->tbtt_tasklet);
-		tasklet_kill(&rt2x00dev->pretbtt_tasklet);
-
-		break;
-	default:
-		break;
-	}
-}
-
 /*
  * Firmware functions
  */
@@ -689,49 +599,6 @@ static const struct rt2x00lib_ops rt2800pci_rt2x00_ops = {
 	.sta_remove		= rt2800_sta_remove,
 };
 
-static void rt2800mmio_queue_init(struct data_queue *queue)
-{
-	struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
-	unsigned short txwi_size, rxwi_size;
-
-	rt2800_get_txwi_rxwi_size(rt2x00dev, &txwi_size, &rxwi_size);
-
-	switch (queue->qid) {
-	case QID_RX:
-		queue->limit = 128;
-		queue->data_size = AGGREGATION_SIZE;
-		queue->desc_size = RXD_DESC_SIZE;
-		queue->winfo_size = rxwi_size;
-		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
-		break;
-
-	case QID_AC_VO:
-	case QID_AC_VI:
-	case QID_AC_BE:
-	case QID_AC_BK:
-		queue->limit = 64;
-		queue->data_size = AGGREGATION_SIZE;
-		queue->desc_size = TXD_DESC_SIZE;
-		queue->winfo_size = txwi_size;
-		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
-		break;
-
-	case QID_BEACON:
-		queue->limit = 8;
-		queue->data_size = 0; /* No DMA required for beacons */
-		queue->desc_size = TXD_DESC_SIZE;
-		queue->winfo_size = txwi_size;
-		queue->priv_size = sizeof(struct queue_entry_priv_mmio);
-		break;
-
-	case QID_ATIM:
-		/* fallthrough */
-	default:
-		BUG();
-		break;
-	}
-}
-
 static const struct rt2x00_ops rt2800pci_ops = {
 	.name			= KBUILD_MODNAME,
 	.drv_data_size		= sizeof(struct rt2800_drv_data),
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.h b/drivers/net/wireless/rt2x00/rt2800pci.h
index 0e551593bf16..a81c9ee281c0 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.h
+++ b/drivers/net/wireless/rt2x00/rt2800pci.h
@@ -34,15 +34,6 @@
 #ifndef RT2800PCI_H
 #define RT2800PCI_H
 
-/*
- * Queue register offset macros
- */
-#define TX_QUEUE_REG_OFFSET		0x10
-#define TX_BASE_PTR(__x)		(TX_BASE_PTR0 + ((__x) * TX_QUEUE_REG_OFFSET))
-#define TX_MAX_CNT(__x)			(TX_MAX_CNT0 + ((__x) * TX_QUEUE_REG_OFFSET))
-#define TX_CTX_IDX(__x)			(TX_CTX_IDX0 + ((__x) * TX_QUEUE_REG_OFFSET))
-#define TX_DTX_IDX(__x)			(TX_DTX_IDX0 + ((__x) * TX_QUEUE_REG_OFFSET))
-
 /*
  * 8051 firmware image.
  */
-- 
cgit 


From 7573afdf807e684de0fd9b1845d24ad0c7d3094d Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:24 +0200
Subject: rt2x00: rt2800pci: use rt2800mmio prefix for initialization functions

The functions are used for devices with memory
mapped I/O and contain no PCI specific code at
all. Use rt2800mmio prefix instead of rt2800pci
in the function names to reflect that.

The patch contains no functional changes.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800pci.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index d0e4ec50caec..7770471bb443 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -245,7 +245,7 @@ static int rt2800pci_write_firmware(struct rt2x00_dev *rt2x00dev,
 /*
  * Initialization functions.
  */
-static bool rt2800pci_get_entry_state(struct queue_entry *entry)
+static bool rt2800mmio_get_entry_state(struct queue_entry *entry)
 {
 	struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
 	u32 word;
@@ -261,7 +261,7 @@ static bool rt2800pci_get_entry_state(struct queue_entry *entry)
 	}
 }
 
-static void rt2800pci_clear_entry(struct queue_entry *entry)
+static void rt2800mmio_clear_entry(struct queue_entry *entry)
 {
 	struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
 	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
@@ -290,7 +290,7 @@ static void rt2800pci_clear_entry(struct queue_entry *entry)
 	}
 }
 
-static int rt2800pci_init_queues(struct rt2x00_dev *rt2x00dev)
+static int rt2800mmio_init_queues(struct rt2x00_dev *rt2x00dev)
 {
 	struct queue_entry_priv_mmio *entry_priv;
 
@@ -358,7 +358,7 @@ static int rt2800pci_init_queues(struct rt2x00_dev *rt2x00dev)
 /*
  * Device state switch handlers.
  */
-static int rt2800pci_init_registers(struct rt2x00_dev *rt2x00dev)
+static int rt2800mmio_init_registers(struct rt2x00_dev *rt2x00dev)
 {
 	u32 reg;
 
@@ -411,7 +411,7 @@ static int rt2800pci_enable_radio(struct rt2x00_dev *rt2x00dev)
 	/* Wait for DMA, ignore error until we initialize queues. */
 	rt2800_wait_wpdma_ready(rt2x00dev);
 
-	if (unlikely(rt2800pci_init_queues(rt2x00dev)))
+	if (unlikely(rt2800mmio_init_queues(rt2x00dev)))
 		return -EIO;
 
 	retval = rt2800_enable_radio(rt2x00dev);
@@ -553,7 +553,7 @@ static const struct rt2800_ops rt2800pci_rt2800_ops = {
 	.read_eeprom		= rt2800pci_read_eeprom,
 	.hwcrypt_disabled	= rt2800pci_hwcrypt_disabled,
 	.drv_write_firmware	= rt2800pci_write_firmware,
-	.drv_init_registers	= rt2800pci_init_registers,
+	.drv_init_registers	= rt2800mmio_init_registers,
 	.drv_get_txwi		= rt2800mmio_get_txwi,
 };
 
@@ -570,8 +570,8 @@ static const struct rt2x00lib_ops rt2800pci_rt2x00_ops = {
 	.load_firmware		= rt2800_load_firmware,
 	.initialize		= rt2x00mmio_initialize,
 	.uninitialize		= rt2x00mmio_uninitialize,
-	.get_entry_state	= rt2800pci_get_entry_state,
-	.clear_entry		= rt2800pci_clear_entry,
+	.get_entry_state	= rt2800mmio_get_entry_state,
+	.clear_entry		= rt2800mmio_clear_entry,
 	.set_device_state	= rt2800pci_set_device_state,
 	.rfkill_poll		= rt2800_rfkill_poll,
 	.link_stats		= rt2800_link_stats,
-- 
cgit 


From 1052e3a6ae461c5ebcc1f346382ca9bc3a93e1dd Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:25 +0200
Subject: rt2x00: rt2800pci: move initialization functions to the rt2800mmio
 module

Move the functions into a separate module, in order
to make those usable from other modules.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800mmio.c | 163 +++++++++++++++++++++++++++++++
 drivers/net/wireless/rt2x00/rt2800mmio.h |   6 ++
 drivers/net/wireless/rt2x00/rt2800pci.c  | 159 ------------------------------
 3 files changed, 169 insertions(+), 159 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800mmio.c b/drivers/net/wireless/rt2x00/rt2800mmio.c
index c42bea56ec15..7e8c22445b7b 100644
--- a/drivers/net/wireless/rt2x00/rt2800mmio.c
+++ b/drivers/net/wireless/rt2x00/rt2800mmio.c
@@ -689,6 +689,169 @@ void rt2800mmio_queue_init(struct data_queue *queue)
 }
 EXPORT_SYMBOL_GPL(rt2800mmio_queue_init);
 
+/*
+ * Initialization functions.
+ */
+bool rt2800mmio_get_entry_state(struct queue_entry *entry)
+{
+	struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
+	u32 word;
+
+	if (entry->queue->qid == QID_RX) {
+		rt2x00_desc_read(entry_priv->desc, 1, &word);
+
+		return (!rt2x00_get_field32(word, RXD_W1_DMA_DONE));
+	} else {
+		rt2x00_desc_read(entry_priv->desc, 1, &word);
+
+		return (!rt2x00_get_field32(word, TXD_W1_DMA_DONE));
+	}
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_get_entry_state);
+
+void rt2800mmio_clear_entry(struct queue_entry *entry)
+{
+	struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
+	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
+	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
+	u32 word;
+
+	if (entry->queue->qid == QID_RX) {
+		rt2x00_desc_read(entry_priv->desc, 0, &word);
+		rt2x00_set_field32(&word, RXD_W0_SDP0, skbdesc->skb_dma);
+		rt2x00_desc_write(entry_priv->desc, 0, word);
+
+		rt2x00_desc_read(entry_priv->desc, 1, &word);
+		rt2x00_set_field32(&word, RXD_W1_DMA_DONE, 0);
+		rt2x00_desc_write(entry_priv->desc, 1, word);
+
+		/*
+		 * Set RX IDX in register to inform hardware that we have
+		 * handled this entry and it is available for reuse again.
+		 */
+		rt2x00mmio_register_write(rt2x00dev, RX_CRX_IDX,
+					  entry->entry_idx);
+	} else {
+		rt2x00_desc_read(entry_priv->desc, 1, &word);
+		rt2x00_set_field32(&word, TXD_W1_DMA_DONE, 1);
+		rt2x00_desc_write(entry_priv->desc, 1, word);
+	}
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_clear_entry);
+
+int rt2800mmio_init_queues(struct rt2x00_dev *rt2x00dev)
+{
+	struct queue_entry_priv_mmio *entry_priv;
+
+	/*
+	 * Initialize registers.
+	 */
+	entry_priv = rt2x00dev->tx[0].entries[0].priv_data;
+	rt2x00mmio_register_write(rt2x00dev, TX_BASE_PTR0,
+				  entry_priv->desc_dma);
+	rt2x00mmio_register_write(rt2x00dev, TX_MAX_CNT0,
+				  rt2x00dev->tx[0].limit);
+	rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX0, 0);
+	rt2x00mmio_register_write(rt2x00dev, TX_DTX_IDX0, 0);
+
+	entry_priv = rt2x00dev->tx[1].entries[0].priv_data;
+	rt2x00mmio_register_write(rt2x00dev, TX_BASE_PTR1,
+				  entry_priv->desc_dma);
+	rt2x00mmio_register_write(rt2x00dev, TX_MAX_CNT1,
+				  rt2x00dev->tx[1].limit);
+	rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX1, 0);
+	rt2x00mmio_register_write(rt2x00dev, TX_DTX_IDX1, 0);
+
+	entry_priv = rt2x00dev->tx[2].entries[0].priv_data;
+	rt2x00mmio_register_write(rt2x00dev, TX_BASE_PTR2,
+				  entry_priv->desc_dma);
+	rt2x00mmio_register_write(rt2x00dev, TX_MAX_CNT2,
+				  rt2x00dev->tx[2].limit);
+	rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX2, 0);
+	rt2x00mmio_register_write(rt2x00dev, TX_DTX_IDX2, 0);
+
+	entry_priv = rt2x00dev->tx[3].entries[0].priv_data;
+	rt2x00mmio_register_write(rt2x00dev, TX_BASE_PTR3,
+				  entry_priv->desc_dma);
+	rt2x00mmio_register_write(rt2x00dev, TX_MAX_CNT3,
+				  rt2x00dev->tx[3].limit);
+	rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX3, 0);
+	rt2x00mmio_register_write(rt2x00dev, TX_DTX_IDX3, 0);
+
+	rt2x00mmio_register_write(rt2x00dev, TX_BASE_PTR4, 0);
+	rt2x00mmio_register_write(rt2x00dev, TX_MAX_CNT4, 0);
+	rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX4, 0);
+	rt2x00mmio_register_write(rt2x00dev, TX_DTX_IDX4, 0);
+
+	rt2x00mmio_register_write(rt2x00dev, TX_BASE_PTR5, 0);
+	rt2x00mmio_register_write(rt2x00dev, TX_MAX_CNT5, 0);
+	rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX5, 0);
+	rt2x00mmio_register_write(rt2x00dev, TX_DTX_IDX5, 0);
+
+	entry_priv = rt2x00dev->rx->entries[0].priv_data;
+	rt2x00mmio_register_write(rt2x00dev, RX_BASE_PTR,
+				  entry_priv->desc_dma);
+	rt2x00mmio_register_write(rt2x00dev, RX_MAX_CNT,
+				  rt2x00dev->rx[0].limit);
+	rt2x00mmio_register_write(rt2x00dev, RX_CRX_IDX,
+				  rt2x00dev->rx[0].limit - 1);
+	rt2x00mmio_register_write(rt2x00dev, RX_DRX_IDX, 0);
+
+	rt2800_disable_wpdma(rt2x00dev);
+
+	rt2x00mmio_register_write(rt2x00dev, DELAY_INT_CFG, 0);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_init_queues);
+
+int rt2800mmio_init_registers(struct rt2x00_dev *rt2x00dev)
+{
+	u32 reg;
+
+	/*
+	 * Reset DMA indexes
+	 */
+	rt2x00mmio_register_read(rt2x00dev, WPDMA_RST_IDX, &reg);
+	rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX0, 1);
+	rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX1, 1);
+	rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX2, 1);
+	rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX3, 1);
+	rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX4, 1);
+	rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX5, 1);
+	rt2x00_set_field32(&reg, WPDMA_RST_IDX_DRX_IDX0, 1);
+	rt2x00mmio_register_write(rt2x00dev, WPDMA_RST_IDX, reg);
+
+	rt2x00mmio_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000e1f);
+	rt2x00mmio_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000e00);
+
+	if (rt2x00_is_pcie(rt2x00dev) &&
+	    (rt2x00_rt(rt2x00dev, RT3090) ||
+	     rt2x00_rt(rt2x00dev, RT3390) ||
+	     rt2x00_rt(rt2x00dev, RT3572) ||
+	     rt2x00_rt(rt2x00dev, RT3593) ||
+	     rt2x00_rt(rt2x00dev, RT5390) ||
+	     rt2x00_rt(rt2x00dev, RT5392) ||
+	     rt2x00_rt(rt2x00dev, RT5592))) {
+		rt2x00mmio_register_read(rt2x00dev, AUX_CTRL, &reg);
+		rt2x00_set_field32(&reg, AUX_CTRL_FORCE_PCIE_CLK, 1);
+		rt2x00_set_field32(&reg, AUX_CTRL_WAKE_PCIE_EN, 1);
+		rt2x00mmio_register_write(rt2x00dev, AUX_CTRL, reg);
+	}
+
+	rt2x00mmio_register_write(rt2x00dev, PWR_PIN_CFG, 0x00000003);
+
+	reg = 0;
+	rt2x00_set_field32(&reg, MAC_SYS_CTRL_RESET_CSR, 1);
+	rt2x00_set_field32(&reg, MAC_SYS_CTRL_RESET_BBP, 1);
+	rt2x00mmio_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
+
+	rt2x00mmio_register_write(rt2x00dev, MAC_SYS_CTRL, 0x00000000);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_init_registers);
+
 MODULE_AUTHOR(DRV_PROJECT);
 MODULE_VERSION(DRV_VERSION);
 MODULE_DESCRIPTION("rt2800 MMIO library");
diff --git a/drivers/net/wireless/rt2x00/rt2800mmio.h b/drivers/net/wireless/rt2x00/rt2800mmio.h
index 676df2e62d45..392895a3208e 100644
--- a/drivers/net/wireless/rt2x00/rt2800mmio.h
+++ b/drivers/net/wireless/rt2x00/rt2800mmio.h
@@ -153,4 +153,10 @@ void rt2800mmio_kick_queue(struct data_queue *queue);
 void rt2800mmio_stop_queue(struct data_queue *queue);
 void rt2800mmio_queue_init(struct data_queue *queue);
 
+/* Initialization functions */
+bool rt2800mmio_get_entry_state(struct queue_entry *entry);
+void rt2800mmio_clear_entry(struct queue_entry *entry);
+int rt2800mmio_init_queues(struct rt2x00_dev *rt2x00dev);
+int rt2800mmio_init_registers(struct rt2x00_dev *rt2x00dev);
+
 #endif /* RT2800MMIO_H */
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 7770471bb443..5ae90df643db 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -242,168 +242,9 @@ static int rt2800pci_write_firmware(struct rt2x00_dev *rt2x00dev,
 	return 0;
 }
 
-/*
- * Initialization functions.
- */
-static bool rt2800mmio_get_entry_state(struct queue_entry *entry)
-{
-	struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
-	u32 word;
-
-	if (entry->queue->qid == QID_RX) {
-		rt2x00_desc_read(entry_priv->desc, 1, &word);
-
-		return (!rt2x00_get_field32(word, RXD_W1_DMA_DONE));
-	} else {
-		rt2x00_desc_read(entry_priv->desc, 1, &word);
-
-		return (!rt2x00_get_field32(word, TXD_W1_DMA_DONE));
-	}
-}
-
-static void rt2800mmio_clear_entry(struct queue_entry *entry)
-{
-	struct queue_entry_priv_mmio *entry_priv = entry->priv_data;
-	struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb);
-	struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
-	u32 word;
-
-	if (entry->queue->qid == QID_RX) {
-		rt2x00_desc_read(entry_priv->desc, 0, &word);
-		rt2x00_set_field32(&word, RXD_W0_SDP0, skbdesc->skb_dma);
-		rt2x00_desc_write(entry_priv->desc, 0, word);
-
-		rt2x00_desc_read(entry_priv->desc, 1, &word);
-		rt2x00_set_field32(&word, RXD_W1_DMA_DONE, 0);
-		rt2x00_desc_write(entry_priv->desc, 1, word);
-
-		/*
-		 * Set RX IDX in register to inform hardware that we have
-		 * handled this entry and it is available for reuse again.
-		 */
-		rt2x00mmio_register_write(rt2x00dev, RX_CRX_IDX,
-					  entry->entry_idx);
-	} else {
-		rt2x00_desc_read(entry_priv->desc, 1, &word);
-		rt2x00_set_field32(&word, TXD_W1_DMA_DONE, 1);
-		rt2x00_desc_write(entry_priv->desc, 1, word);
-	}
-}
-
-static int rt2800mmio_init_queues(struct rt2x00_dev *rt2x00dev)
-{
-	struct queue_entry_priv_mmio *entry_priv;
-
-	/*
-	 * Initialize registers.
-	 */
-	entry_priv = rt2x00dev->tx[0].entries[0].priv_data;
-	rt2x00mmio_register_write(rt2x00dev, TX_BASE_PTR0,
-				  entry_priv->desc_dma);
-	rt2x00mmio_register_write(rt2x00dev, TX_MAX_CNT0,
-				  rt2x00dev->tx[0].limit);
-	rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX0, 0);
-	rt2x00mmio_register_write(rt2x00dev, TX_DTX_IDX0, 0);
-
-	entry_priv = rt2x00dev->tx[1].entries[0].priv_data;
-	rt2x00mmio_register_write(rt2x00dev, TX_BASE_PTR1,
-				  entry_priv->desc_dma);
-	rt2x00mmio_register_write(rt2x00dev, TX_MAX_CNT1,
-				  rt2x00dev->tx[1].limit);
-	rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX1, 0);
-	rt2x00mmio_register_write(rt2x00dev, TX_DTX_IDX1, 0);
-
-	entry_priv = rt2x00dev->tx[2].entries[0].priv_data;
-	rt2x00mmio_register_write(rt2x00dev, TX_BASE_PTR2,
-				  entry_priv->desc_dma);
-	rt2x00mmio_register_write(rt2x00dev, TX_MAX_CNT2,
-				  rt2x00dev->tx[2].limit);
-	rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX2, 0);
-	rt2x00mmio_register_write(rt2x00dev, TX_DTX_IDX2, 0);
-
-	entry_priv = rt2x00dev->tx[3].entries[0].priv_data;
-	rt2x00mmio_register_write(rt2x00dev, TX_BASE_PTR3,
-				  entry_priv->desc_dma);
-	rt2x00mmio_register_write(rt2x00dev, TX_MAX_CNT3,
-				  rt2x00dev->tx[3].limit);
-	rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX3, 0);
-	rt2x00mmio_register_write(rt2x00dev, TX_DTX_IDX3, 0);
-
-	rt2x00mmio_register_write(rt2x00dev, TX_BASE_PTR4, 0);
-	rt2x00mmio_register_write(rt2x00dev, TX_MAX_CNT4, 0);
-	rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX4, 0);
-	rt2x00mmio_register_write(rt2x00dev, TX_DTX_IDX4, 0);
-
-	rt2x00mmio_register_write(rt2x00dev, TX_BASE_PTR5, 0);
-	rt2x00mmio_register_write(rt2x00dev, TX_MAX_CNT5, 0);
-	rt2x00mmio_register_write(rt2x00dev, TX_CTX_IDX5, 0);
-	rt2x00mmio_register_write(rt2x00dev, TX_DTX_IDX5, 0);
-
-	entry_priv = rt2x00dev->rx->entries[0].priv_data;
-	rt2x00mmio_register_write(rt2x00dev, RX_BASE_PTR,
-				  entry_priv->desc_dma);
-	rt2x00mmio_register_write(rt2x00dev, RX_MAX_CNT,
-				  rt2x00dev->rx[0].limit);
-	rt2x00mmio_register_write(rt2x00dev, RX_CRX_IDX,
-				  rt2x00dev->rx[0].limit - 1);
-	rt2x00mmio_register_write(rt2x00dev, RX_DRX_IDX, 0);
-
-	rt2800_disable_wpdma(rt2x00dev);
-
-	rt2x00mmio_register_write(rt2x00dev, DELAY_INT_CFG, 0);
-
-	return 0;
-}
-
 /*
  * Device state switch handlers.
  */
-static int rt2800mmio_init_registers(struct rt2x00_dev *rt2x00dev)
-{
-	u32 reg;
-
-	/*
-	 * Reset DMA indexes
-	 */
-	rt2x00mmio_register_read(rt2x00dev, WPDMA_RST_IDX, &reg);
-	rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX0, 1);
-	rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX1, 1);
-	rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX2, 1);
-	rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX3, 1);
-	rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX4, 1);
-	rt2x00_set_field32(&reg, WPDMA_RST_IDX_DTX_IDX5, 1);
-	rt2x00_set_field32(&reg, WPDMA_RST_IDX_DRX_IDX0, 1);
-	rt2x00mmio_register_write(rt2x00dev, WPDMA_RST_IDX, reg);
-
-	rt2x00mmio_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000e1f);
-	rt2x00mmio_register_write(rt2x00dev, PBF_SYS_CTRL, 0x00000e00);
-
-	if (rt2x00_is_pcie(rt2x00dev) &&
-	    (rt2x00_rt(rt2x00dev, RT3090) ||
-	     rt2x00_rt(rt2x00dev, RT3390) ||
-	     rt2x00_rt(rt2x00dev, RT3572) ||
-	     rt2x00_rt(rt2x00dev, RT3593) ||
-	     rt2x00_rt(rt2x00dev, RT5390) ||
-	     rt2x00_rt(rt2x00dev, RT5392) ||
-	     rt2x00_rt(rt2x00dev, RT5592))) {
-		rt2x00mmio_register_read(rt2x00dev, AUX_CTRL, &reg);
-		rt2x00_set_field32(&reg, AUX_CTRL_FORCE_PCIE_CLK, 1);
-		rt2x00_set_field32(&reg, AUX_CTRL_WAKE_PCIE_EN, 1);
-		rt2x00mmio_register_write(rt2x00dev, AUX_CTRL, reg);
-	}
-
-	rt2x00mmio_register_write(rt2x00dev, PWR_PIN_CFG, 0x00000003);
-
-	reg = 0;
-	rt2x00_set_field32(&reg, MAC_SYS_CTRL_RESET_CSR, 1);
-	rt2x00_set_field32(&reg, MAC_SYS_CTRL_RESET_BBP, 1);
-	rt2x00mmio_register_write(rt2x00dev, MAC_SYS_CTRL, reg);
-
-	rt2x00mmio_register_write(rt2x00dev, MAC_SYS_CTRL, 0x00000000);
-
-	return 0;
-}
-
 static int rt2800pci_enable_radio(struct rt2x00_dev *rt2x00dev)
 {
 	int retval;
-- 
cgit 


From eeea863eba67adaa1a5b2ff34398207ef5506416 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:26 +0200
Subject: rt2x00: rt2800pci: use separate ops for the SoC driver

This makes it possible to use different callback
functions for PCI and SoC devices which will allow
to move the SoC driver into a separate module.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800pci.c | 104 +++++++++++++++++++++++++++++++-
 1 file changed, 102 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 5ae90df643db..344a73ddd3e5 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -356,6 +356,7 @@ static int rt2800pci_read_eeprom(struct rt2x00_dev *rt2x00dev)
 	return retval;
 }
 
+#ifdef CONFIG_PCI
 static const struct ieee80211_ops rt2800pci_mac80211_ops = {
 	.tx			= rt2x00mac_tx,
 	.start			= rt2x00mac_start,
@@ -459,7 +460,6 @@ static const struct rt2x00_ops rt2800pci_ops = {
 /*
  * RT2800pci module information.
  */
-#ifdef CONFIG_PCI
 static DEFINE_PCI_DEVICE_TABLE(rt2800pci_device_table) = {
 	{ PCI_DEVICE(0x1814, 0x0601) },
 	{ PCI_DEVICE(0x1814, 0x0681) },
@@ -517,9 +517,109 @@ MODULE_DEVICE_TABLE(pci, rt2800pci_device_table);
 MODULE_LICENSE("GPL");
 
 #if defined(CONFIG_SOC_RT288X) || defined(CONFIG_SOC_RT305X)
+static const struct ieee80211_ops rt2800soc_mac80211_ops = {
+	.tx			= rt2x00mac_tx,
+	.start			= rt2x00mac_start,
+	.stop			= rt2x00mac_stop,
+	.add_interface		= rt2x00mac_add_interface,
+	.remove_interface	= rt2x00mac_remove_interface,
+	.config			= rt2x00mac_config,
+	.configure_filter	= rt2x00mac_configure_filter,
+	.set_key		= rt2x00mac_set_key,
+	.sw_scan_start		= rt2x00mac_sw_scan_start,
+	.sw_scan_complete	= rt2x00mac_sw_scan_complete,
+	.get_stats		= rt2x00mac_get_stats,
+	.get_tkip_seq		= rt2800_get_tkip_seq,
+	.set_rts_threshold	= rt2800_set_rts_threshold,
+	.sta_add		= rt2x00mac_sta_add,
+	.sta_remove		= rt2x00mac_sta_remove,
+	.bss_info_changed	= rt2x00mac_bss_info_changed,
+	.conf_tx		= rt2800_conf_tx,
+	.get_tsf		= rt2800_get_tsf,
+	.rfkill_poll		= rt2x00mac_rfkill_poll,
+	.ampdu_action		= rt2800_ampdu_action,
+	.flush			= rt2x00mac_flush,
+	.get_survey		= rt2800_get_survey,
+	.get_ringparam		= rt2x00mac_get_ringparam,
+	.tx_frames_pending	= rt2x00mac_tx_frames_pending,
+};
+
+static const struct rt2800_ops rt2800soc_rt2800_ops = {
+	.register_read		= rt2x00mmio_register_read,
+	.register_read_lock	= rt2x00mmio_register_read, /* same for SoCs */
+	.register_write		= rt2x00mmio_register_write,
+	.register_write_lock	= rt2x00mmio_register_write, /* same for SoCs */
+	.register_multiread	= rt2x00mmio_register_multiread,
+	.register_multiwrite	= rt2x00mmio_register_multiwrite,
+	.regbusy_read		= rt2x00mmio_regbusy_read,
+	.read_eeprom		= rt2800pci_read_eeprom,
+	.hwcrypt_disabled	= rt2800pci_hwcrypt_disabled,
+	.drv_write_firmware	= rt2800pci_write_firmware,
+	.drv_init_registers	= rt2800mmio_init_registers,
+	.drv_get_txwi		= rt2800mmio_get_txwi,
+};
+
+static const struct rt2x00lib_ops rt2800soc_rt2x00_ops = {
+	.irq_handler		= rt2800mmio_interrupt,
+	.txstatus_tasklet	= rt2800mmio_txstatus_tasklet,
+	.pretbtt_tasklet	= rt2800mmio_pretbtt_tasklet,
+	.tbtt_tasklet		= rt2800mmio_tbtt_tasklet,
+	.rxdone_tasklet		= rt2800mmio_rxdone_tasklet,
+	.autowake_tasklet	= rt2800mmio_autowake_tasklet,
+	.probe_hw		= rt2800_probe_hw,
+	.get_firmware_name	= rt2800pci_get_firmware_name,
+	.check_firmware		= rt2800_check_firmware,
+	.load_firmware		= rt2800_load_firmware,
+	.initialize		= rt2x00mmio_initialize,
+	.uninitialize		= rt2x00mmio_uninitialize,
+	.get_entry_state	= rt2800mmio_get_entry_state,
+	.clear_entry		= rt2800mmio_clear_entry,
+	.set_device_state	= rt2800pci_set_device_state,
+	.rfkill_poll		= rt2800_rfkill_poll,
+	.link_stats		= rt2800_link_stats,
+	.reset_tuner		= rt2800_reset_tuner,
+	.link_tuner		= rt2800_link_tuner,
+	.gain_calibration	= rt2800_gain_calibration,
+	.vco_calibration	= rt2800_vco_calibration,
+	.start_queue		= rt2800mmio_start_queue,
+	.kick_queue		= rt2800mmio_kick_queue,
+	.stop_queue		= rt2800mmio_stop_queue,
+	.flush_queue		= rt2x00mmio_flush_queue,
+	.write_tx_desc		= rt2800mmio_write_tx_desc,
+	.write_tx_data		= rt2800_write_tx_data,
+	.write_beacon		= rt2800_write_beacon,
+	.clear_beacon		= rt2800_clear_beacon,
+	.fill_rxdone		= rt2800mmio_fill_rxdone,
+	.config_shared_key	= rt2800_config_shared_key,
+	.config_pairwise_key	= rt2800_config_pairwise_key,
+	.config_filter		= rt2800_config_filter,
+	.config_intf		= rt2800_config_intf,
+	.config_erp		= rt2800_config_erp,
+	.config_ant		= rt2800_config_ant,
+	.config			= rt2800_config,
+	.sta_add		= rt2800_sta_add,
+	.sta_remove		= rt2800_sta_remove,
+};
+
+static const struct rt2x00_ops rt2800soc_ops = {
+	.name			= KBUILD_MODNAME,
+	.drv_data_size		= sizeof(struct rt2800_drv_data),
+	.max_ap_intf		= 8,
+	.eeprom_size		= EEPROM_SIZE,
+	.rf_size		= RF_SIZE,
+	.tx_queues		= NUM_TX_QUEUES,
+	.queue_init		= rt2800mmio_queue_init,
+	.lib			= &rt2800soc_rt2x00_ops,
+	.drv			= &rt2800soc_rt2800_ops,
+	.hw			= &rt2800soc_mac80211_ops,
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+	.debugfs		= &rt2800_rt2x00debug,
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+};
+
 static int rt2800soc_probe(struct platform_device *pdev)
 {
-	return rt2x00soc_probe(pdev, &rt2800pci_ops);
+	return rt2x00soc_probe(pdev, &rt2800soc_ops);
 }
 
 static struct platform_driver rt2800soc_driver = {
-- 
cgit 


From 68597ea8674bd6c8983abc2a73e1e707af85f38e Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:27 +0200
Subject: rt2x00: rt2800pci: use separate read_eeprom callback for SoC devices

Rename the 'rt2800pci_read_eeprom_soc function' to
'rt2800soc_read_eeprom' and use that directly in the
SoC specific 'rt2800_ops' structure. Also move the
'rt2800pci_eeprom_read' function into an 'ifdef PCI'
section and remove the 'rt2800pci_read_eeprom_soc'
call from that.

Additionally, remove the dummy inline eeprom functions.
Those are not used anymore.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800pci.c | 56 ++++++++++-----------------------
 1 file changed, 16 insertions(+), 40 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 344a73ddd3e5..afd422faaf14 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -91,26 +91,6 @@ static void rt2800pci_mcu_status(struct rt2x00_dev *rt2x00dev, const u8 token)
 	rt2x00mmio_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0);
 }
 
-#if defined(CONFIG_SOC_RT288X) || defined(CONFIG_SOC_RT305X)
-static int rt2800pci_read_eeprom_soc(struct rt2x00_dev *rt2x00dev)
-{
-	void __iomem *base_addr = ioremap(0x1F040000, EEPROM_SIZE);
-
-	if (!base_addr)
-		return -ENOMEM;
-
-	memcpy_fromio(rt2x00dev->eeprom, base_addr, EEPROM_SIZE);
-
-	iounmap(base_addr);
-	return 0;
-}
-#else
-static inline int rt2800pci_read_eeprom_soc(struct rt2x00_dev *rt2x00dev)
-{
-	return -ENOMEM;
-}
-#endif /* CONFIG_SOC_RT288X || CONFIG_SOC_RT305X */
-
 #ifdef CONFIG_PCI
 static void rt2800pci_eepromregister_read(struct eeprom_93cx6 *eeprom)
 {
@@ -184,21 +164,6 @@ static inline int rt2800pci_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev)
 {
 	return rt2800_read_eeprom_efuse(rt2x00dev);
 }
-#else
-static inline int rt2800pci_read_eeprom_pci(struct rt2x00_dev *rt2x00dev)
-{
-	return -EOPNOTSUPP;
-}
-
-static inline int rt2800pci_efuse_detect(struct rt2x00_dev *rt2x00dev)
-{
-	return 0;
-}
-
-static inline int rt2800pci_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev)
-{
-	return -EOPNOTSUPP;
-}
 #endif /* CONFIG_PCI */
 
 /*
@@ -339,6 +304,7 @@ static int rt2800pci_set_device_state(struct rt2x00_dev *rt2x00dev,
 	return retval;
 }
 
+#ifdef CONFIG_PCI
 /*
  * Device probe functions.
  */
@@ -346,9 +312,7 @@ static int rt2800pci_read_eeprom(struct rt2x00_dev *rt2x00dev)
 {
 	int retval;
 
-	if (rt2x00_is_soc(rt2x00dev))
-		retval = rt2800pci_read_eeprom_soc(rt2x00dev);
-	else if (rt2800pci_efuse_detect(rt2x00dev))
+	if (rt2800pci_efuse_detect(rt2x00dev))
 		retval = rt2800pci_read_eeprom_efuse(rt2x00dev);
 	else
 		retval = rt2800pci_read_eeprom_pci(rt2x00dev);
@@ -356,7 +320,6 @@ static int rt2800pci_read_eeprom(struct rt2x00_dev *rt2x00dev)
 	return retval;
 }
 
-#ifdef CONFIG_PCI
 static const struct ieee80211_ops rt2800pci_mac80211_ops = {
 	.tx			= rt2x00mac_tx,
 	.start			= rt2x00mac_start,
@@ -517,6 +480,19 @@ MODULE_DEVICE_TABLE(pci, rt2800pci_device_table);
 MODULE_LICENSE("GPL");
 
 #if defined(CONFIG_SOC_RT288X) || defined(CONFIG_SOC_RT305X)
+static int rt2800soc_read_eeprom(struct rt2x00_dev *rt2x00dev)
+{
+	void __iomem *base_addr = ioremap(0x1F040000, EEPROM_SIZE);
+
+	if (!base_addr)
+		return -ENOMEM;
+
+	memcpy_fromio(rt2x00dev->eeprom, base_addr, EEPROM_SIZE);
+
+	iounmap(base_addr);
+	return 0;
+}
+
 static const struct ieee80211_ops rt2800soc_mac80211_ops = {
 	.tx			= rt2x00mac_tx,
 	.start			= rt2x00mac_start,
@@ -552,7 +528,7 @@ static const struct rt2800_ops rt2800soc_rt2800_ops = {
 	.register_multiread	= rt2x00mmio_register_multiread,
 	.register_multiwrite	= rt2x00mmio_register_multiwrite,
 	.regbusy_read		= rt2x00mmio_regbusy_read,
-	.read_eeprom		= rt2800pci_read_eeprom,
+	.read_eeprom		= rt2800soc_read_eeprom,
 	.hwcrypt_disabled	= rt2800pci_hwcrypt_disabled,
 	.drv_write_firmware	= rt2800pci_write_firmware,
 	.drv_init_registers	= rt2800mmio_init_registers,
-- 
cgit 


From 899a5f493a0135c5a676f75a53e70255df25a3e4 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:28 +0200
Subject: rt2x00: rt2800pci: use separate firmware callbacks for SoC devices

Use empty firmware callbacks for SoC devices because those
don't require firmware.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800pci.c | 38 ++++++++++++++++++++++++++++-----
 1 file changed, 33 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index afd422faaf14..efc35b4dd078 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -164,7 +164,6 @@ static inline int rt2800pci_read_eeprom_efuse(struct rt2x00_dev *rt2x00dev)
 {
 	return rt2800_read_eeprom_efuse(rt2x00dev);
 }
-#endif /* CONFIG_PCI */
 
 /*
  * Firmware functions
@@ -206,6 +205,7 @@ static int rt2800pci_write_firmware(struct rt2x00_dev *rt2x00dev,
 
 	return 0;
 }
+#endif /* CONFIG_PCI */
 
 /*
  * Device state switch handlers.
@@ -493,6 +493,34 @@ static int rt2800soc_read_eeprom(struct rt2x00_dev *rt2x00dev)
 	return 0;
 }
 
+/* Firmware functions */
+static char *rt2800soc_get_firmware_name(struct rt2x00_dev *rt2x00dev)
+{
+	WARN_ON_ONCE(1);
+	return NULL;
+}
+
+static int rt2800soc_load_firmware(struct rt2x00_dev *rt2x00dev,
+				   const u8 *data, const size_t len)
+{
+	WARN_ON_ONCE(1);
+	return 0;
+}
+
+static int rt2800soc_check_firmware(struct rt2x00_dev *rt2x00dev,
+				    const u8 *data, const size_t len)
+{
+	WARN_ON_ONCE(1);
+	return 0;
+}
+
+static int rt2800soc_write_firmware(struct rt2x00_dev *rt2x00dev,
+				    const u8 *data, const size_t len)
+{
+	WARN_ON_ONCE(1);
+	return 0;
+}
+
 static const struct ieee80211_ops rt2800soc_mac80211_ops = {
 	.tx			= rt2x00mac_tx,
 	.start			= rt2x00mac_start,
@@ -530,7 +558,7 @@ static const struct rt2800_ops rt2800soc_rt2800_ops = {
 	.regbusy_read		= rt2x00mmio_regbusy_read,
 	.read_eeprom		= rt2800soc_read_eeprom,
 	.hwcrypt_disabled	= rt2800pci_hwcrypt_disabled,
-	.drv_write_firmware	= rt2800pci_write_firmware,
+	.drv_write_firmware	= rt2800soc_write_firmware,
 	.drv_init_registers	= rt2800mmio_init_registers,
 	.drv_get_txwi		= rt2800mmio_get_txwi,
 };
@@ -543,9 +571,9 @@ static const struct rt2x00lib_ops rt2800soc_rt2x00_ops = {
 	.rxdone_tasklet		= rt2800mmio_rxdone_tasklet,
 	.autowake_tasklet	= rt2800mmio_autowake_tasklet,
 	.probe_hw		= rt2800_probe_hw,
-	.get_firmware_name	= rt2800pci_get_firmware_name,
-	.check_firmware		= rt2800_check_firmware,
-	.load_firmware		= rt2800_load_firmware,
+	.get_firmware_name	= rt2800soc_get_firmware_name,
+	.check_firmware		= rt2800soc_check_firmware,
+	.load_firmware		= rt2800soc_load_firmware,
 	.initialize		= rt2x00mmio_initialize,
 	.uninitialize		= rt2x00mmio_uninitialize,
 	.get_entry_state	= rt2800mmio_get_entry_state,
-- 
cgit 


From 6716b3d83221e7aa2623d9a60fdbf7faa836756b Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:29 +0200
Subject: rt2x00: rt2800pci: use separate set_state callback for SoC devices

The 'rt2800pci_set_state' function uses MCU commands
to set the device state, however these have no effect
on SoC devices. Use a different set_state callback
which does not use the MCU fcuntions.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800pci.c | 43 +++++++++++++++++++++++++++++++--
 1 file changed, 41 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index efc35b4dd078..e424b7ad5173 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -246,6 +246,7 @@ static void rt2800pci_disable_radio(struct rt2x00_dev *rt2x00dev)
 	}
 }
 
+#ifdef CONFIG_PCI
 static int rt2800pci_set_state(struct rt2x00_dev *rt2x00dev,
 			       enum dev_state state)
 {
@@ -304,7 +305,6 @@ static int rt2800pci_set_device_state(struct rt2x00_dev *rt2x00dev,
 	return retval;
 }
 
-#ifdef CONFIG_PCI
 /*
  * Device probe functions.
  */
@@ -480,6 +480,45 @@ MODULE_DEVICE_TABLE(pci, rt2800pci_device_table);
 MODULE_LICENSE("GPL");
 
 #if defined(CONFIG_SOC_RT288X) || defined(CONFIG_SOC_RT305X)
+static int rt2800soc_set_device_state(struct rt2x00_dev *rt2x00dev,
+				      enum dev_state state)
+{
+	int retval = 0;
+
+	switch (state) {
+	case STATE_RADIO_ON:
+		retval = rt2800pci_enable_radio(rt2x00dev);
+		break;
+
+	case STATE_RADIO_OFF:
+		rt2800pci_disable_radio(rt2x00dev);
+		break;
+
+	case STATE_RADIO_IRQ_ON:
+	case STATE_RADIO_IRQ_OFF:
+		rt2800mmio_toggle_irq(rt2x00dev, state);
+		break;
+
+	case STATE_DEEP_SLEEP:
+	case STATE_SLEEP:
+	case STATE_STANDBY:
+	case STATE_AWAKE:
+		/* These states are not supported, but don't report an error */
+		retval = 0;
+		break;
+
+	default:
+		retval = -ENOTSUPP;
+		break;
+	}
+
+	if (unlikely(retval))
+		rt2x00_err(rt2x00dev, "Device failed to enter state %d (%d)\n",
+			   state, retval);
+
+	return retval;
+}
+
 static int rt2800soc_read_eeprom(struct rt2x00_dev *rt2x00dev)
 {
 	void __iomem *base_addr = ioremap(0x1F040000, EEPROM_SIZE);
@@ -578,7 +617,7 @@ static const struct rt2x00lib_ops rt2800soc_rt2x00_ops = {
 	.uninitialize		= rt2x00mmio_uninitialize,
 	.get_entry_state	= rt2800mmio_get_entry_state,
 	.clear_entry		= rt2800mmio_clear_entry,
-	.set_device_state	= rt2800pci_set_device_state,
+	.set_device_state	= rt2800soc_set_device_state,
 	.rfkill_poll		= rt2800_rfkill_poll,
 	.link_stats		= rt2800_link_stats,
 	.reset_tuner		= rt2800_reset_tuner,
-- 
cgit 


From 28d4d98d7ad11b540f0041be9e7d4dae15ca22fa Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:30 +0200
Subject: rt2x00: rt2800pci: rename rt2800pci_disable_radio function

The function contain code for SoC devices only.
Rename the function to 'rt2800soc_disable_radio'
and move it to the SoC specific section. Use
the renamed function in the SoC specific code
only and remove the 'if rt2x00_is_soc(rt2x00dev)'
condition from the function body.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800pci.c | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index e424b7ad5173..4cfd8f77fa71 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -237,15 +237,6 @@ static int rt2800pci_enable_radio(struct rt2x00_dev *rt2x00dev)
 	return retval;
 }
 
-static void rt2800pci_disable_radio(struct rt2x00_dev *rt2x00dev)
-{
-	if (rt2x00_is_soc(rt2x00dev)) {
-		rt2800_disable_radio(rt2x00dev);
-		rt2x00mmio_register_write(rt2x00dev, PWR_PIN_CFG, 0);
-		rt2x00mmio_register_write(rt2x00dev, TX_PIN_CFG, 0);
-	}
-}
-
 #ifdef CONFIG_PCI
 static int rt2800pci_set_state(struct rt2x00_dev *rt2x00dev,
 			       enum dev_state state)
@@ -280,7 +271,6 @@ static int rt2800pci_set_device_state(struct rt2x00_dev *rt2x00dev,
 		 * After the radio has been disabled, the device should
 		 * be put to sleep for powersaving.
 		 */
-		rt2800pci_disable_radio(rt2x00dev);
 		rt2800pci_set_state(rt2x00dev, STATE_SLEEP);
 		break;
 	case STATE_RADIO_IRQ_ON:
@@ -480,6 +470,13 @@ MODULE_DEVICE_TABLE(pci, rt2800pci_device_table);
 MODULE_LICENSE("GPL");
 
 #if defined(CONFIG_SOC_RT288X) || defined(CONFIG_SOC_RT305X)
+static void rt2800soc_disable_radio(struct rt2x00_dev *rt2x00dev)
+{
+	rt2800_disable_radio(rt2x00dev);
+	rt2x00mmio_register_write(rt2x00dev, PWR_PIN_CFG, 0);
+	rt2x00mmio_register_write(rt2x00dev, TX_PIN_CFG, 0);
+}
+
 static int rt2800soc_set_device_state(struct rt2x00_dev *rt2x00dev,
 				      enum dev_state state)
 {
@@ -491,7 +488,7 @@ static int rt2800soc_set_device_state(struct rt2x00_dev *rt2x00dev,
 		break;
 
 	case STATE_RADIO_OFF:
-		rt2800pci_disable_radio(rt2x00dev);
+		rt2800soc_disable_radio(rt2x00dev);
 		break;
 
 	case STATE_RADIO_IRQ_ON:
-- 
cgit 


From 1e7d30355d91c70e2557daf3dac633255202d2df Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:31 +0200
Subject: rt2x00: rt2800pci: split rt2800pci_enable_radio function

The function is called for PCI and SoC devices
however the MCU related part of the function
has no effect on SoC devices. Move the common
part of the function into a separate helper and
use that for the SoC devices.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800pci.c | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 4cfd8f77fa71..88dd242ac1e3 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -61,6 +61,7 @@ static bool rt2800pci_hwcrypt_disabled(struct rt2x00_dev *rt2x00dev)
 	return modparam_nohwcrypt;
 }
 
+#ifdef CONFIG_PCI
 static void rt2800pci_mcu_status(struct rt2x00_dev *rt2x00dev, const u8 token)
 {
 	unsigned int i;
@@ -91,7 +92,6 @@ static void rt2800pci_mcu_status(struct rt2x00_dev *rt2x00dev, const u8 token)
 	rt2x00mmio_register_write(rt2x00dev, H2M_MAILBOX_CID, ~0);
 }
 
-#ifdef CONFIG_PCI
 static void rt2800pci_eepromregister_read(struct eeprom_93cx6 *eeprom)
 {
 	struct rt2x00_dev *rt2x00dev = eeprom->data;
@@ -210,17 +210,23 @@ static int rt2800pci_write_firmware(struct rt2x00_dev *rt2x00dev,
 /*
  * Device state switch handlers.
  */
-static int rt2800pci_enable_radio(struct rt2x00_dev *rt2x00dev)
+static int rt2800mmio_enable_radio(struct rt2x00_dev *rt2x00dev)
 {
-	int retval;
-
 	/* Wait for DMA, ignore error until we initialize queues. */
 	rt2800_wait_wpdma_ready(rt2x00dev);
 
 	if (unlikely(rt2800mmio_init_queues(rt2x00dev)))
 		return -EIO;
 
-	retval = rt2800_enable_radio(rt2x00dev);
+	return rt2800_enable_radio(rt2x00dev);
+}
+
+#ifdef CONFIG_PCI
+static int rt2800pci_enable_radio(struct rt2x00_dev *rt2x00dev)
+{
+	int retval;
+
+	retval = rt2800mmio_enable_radio(rt2x00dev);
 	if (retval)
 		return retval;
 
@@ -237,7 +243,6 @@ static int rt2800pci_enable_radio(struct rt2x00_dev *rt2x00dev)
 	return retval;
 }
 
-#ifdef CONFIG_PCI
 static int rt2800pci_set_state(struct rt2x00_dev *rt2x00dev,
 			       enum dev_state state)
 {
@@ -484,7 +489,7 @@ static int rt2800soc_set_device_state(struct rt2x00_dev *rt2x00dev,
 
 	switch (state) {
 	case STATE_RADIO_ON:
-		retval = rt2800pci_enable_radio(rt2x00dev);
+		retval = rt2800mmio_enable_radio(rt2x00dev);
 		break;
 
 	case STATE_RADIO_OFF:
-- 
cgit 


From 3ccdcd515d651943658e812eb8f8ff2a5b5113fc Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:32 +0200
Subject: rt2x00: rt2800pci: move rt2800mmio_enable_radio function to another
 module

Move the function into the rt2800mmio module, in order
to make it usable from other modules.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800mmio.c | 15 +++++++++++++++
 drivers/net/wireless/rt2x00/rt2800mmio.h |  3 +++
 drivers/net/wireless/rt2x00/rt2800pci.c  | 13 -------------
 3 files changed, 18 insertions(+), 13 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800mmio.c b/drivers/net/wireless/rt2x00/rt2800mmio.c
index 7e8c22445b7b..ae152280e071 100644
--- a/drivers/net/wireless/rt2x00/rt2800mmio.c
+++ b/drivers/net/wireless/rt2x00/rt2800mmio.c
@@ -852,6 +852,21 @@ int rt2800mmio_init_registers(struct rt2x00_dev *rt2x00dev)
 }
 EXPORT_SYMBOL_GPL(rt2800mmio_init_registers);
 
+/*
+ * Device state switch handlers.
+ */
+int rt2800mmio_enable_radio(struct rt2x00_dev *rt2x00dev)
+{
+	/* Wait for DMA, ignore error until we initialize queues. */
+	rt2800_wait_wpdma_ready(rt2x00dev);
+
+	if (unlikely(rt2800mmio_init_queues(rt2x00dev)))
+		return -EIO;
+
+	return rt2800_enable_radio(rt2x00dev);
+}
+EXPORT_SYMBOL_GPL(rt2800mmio_enable_radio);
+
 MODULE_AUTHOR(DRV_PROJECT);
 MODULE_VERSION(DRV_VERSION);
 MODULE_DESCRIPTION("rt2800 MMIO library");
diff --git a/drivers/net/wireless/rt2x00/rt2800mmio.h b/drivers/net/wireless/rt2x00/rt2800mmio.h
index 392895a3208e..6a10de3eee3e 100644
--- a/drivers/net/wireless/rt2x00/rt2800mmio.h
+++ b/drivers/net/wireless/rt2x00/rt2800mmio.h
@@ -159,4 +159,7 @@ void rt2800mmio_clear_entry(struct queue_entry *entry);
 int rt2800mmio_init_queues(struct rt2x00_dev *rt2x00dev);
 int rt2800mmio_init_registers(struct rt2x00_dev *rt2x00dev);
 
+/* Device state switch handlers. */
+int rt2800mmio_enable_radio(struct rt2x00_dev *rt2x00dev);
+
 #endif /* RT2800MMIO_H */
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 88dd242ac1e3..77ddd1a97732 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -205,23 +205,10 @@ static int rt2800pci_write_firmware(struct rt2x00_dev *rt2x00dev,
 
 	return 0;
 }
-#endif /* CONFIG_PCI */
 
 /*
  * Device state switch handlers.
  */
-static int rt2800mmio_enable_radio(struct rt2x00_dev *rt2x00dev)
-{
-	/* Wait for DMA, ignore error until we initialize queues. */
-	rt2800_wait_wpdma_ready(rt2x00dev);
-
-	if (unlikely(rt2800mmio_init_queues(rt2x00dev)))
-		return -EIO;
-
-	return rt2800_enable_radio(rt2x00dev);
-}
-
-#ifdef CONFIG_PCI
 static int rt2800pci_enable_radio(struct rt2x00_dev *rt2x00dev)
 {
 	int retval;
-- 
cgit 


From 0b0ee990f402b357422cc7c5cc12915490610e3e Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:33 +0200
Subject: rt2x00: rt2800pci: use separate hwcrypt_disabled callback for SoC
 devices

The 'rt2800pci_hwcrypt_disabled' function is the
only PCI specific callback which is used by the
SoC driver. Create a clone of that to get rid of
the dependency.

Even though the two functions are using the same
variable, but the SoC specific code will be moved
into a separate module which will have its own
'modparam_nohwcrypt' variable.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800pci.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 77ddd1a97732..488d1c449349 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -56,12 +56,12 @@ static bool modparam_nohwcrypt = false;
 module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
 
+#ifdef CONFIG_PCI
 static bool rt2800pci_hwcrypt_disabled(struct rt2x00_dev *rt2x00dev)
 {
 	return modparam_nohwcrypt;
 }
 
-#ifdef CONFIG_PCI
 static void rt2800pci_mcu_status(struct rt2x00_dev *rt2x00dev, const u8 token)
 {
 	unsigned int i;
@@ -462,6 +462,11 @@ MODULE_DEVICE_TABLE(pci, rt2800pci_device_table);
 MODULE_LICENSE("GPL");
 
 #if defined(CONFIG_SOC_RT288X) || defined(CONFIG_SOC_RT305X)
+static bool rt2800soc_hwcrypt_disabled(struct rt2x00_dev *rt2x00dev)
+{
+	return modparam_nohwcrypt;
+}
+
 static void rt2800soc_disable_radio(struct rt2x00_dev *rt2x00dev)
 {
 	rt2800_disable_radio(rt2x00dev);
@@ -585,7 +590,7 @@ static const struct rt2800_ops rt2800soc_rt2800_ops = {
 	.register_multiwrite	= rt2x00mmio_register_multiwrite,
 	.regbusy_read		= rt2x00mmio_regbusy_read,
 	.read_eeprom		= rt2800soc_read_eeprom,
-	.hwcrypt_disabled	= rt2800pci_hwcrypt_disabled,
+	.hwcrypt_disabled	= rt2800soc_hwcrypt_disabled,
 	.drv_write_firmware	= rt2800soc_write_firmware,
 	.drv_init_registers	= rt2800mmio_init_registers,
 	.drv_get_txwi		= rt2800mmio_get_txwi,
-- 
cgit 


From fe7ef7c60c33fd339f40320fae76bc56d368dae5 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:34 +0200
Subject: rt2x00: rt2800pci: move SoC specific code into a separate module

The PCI and SoC specific drivers are using separate
code now so it is not reasonable to use the same
module for both drivers anymore.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/Kconfig     |  21 ++-
 drivers/net/wireless/rt2x00/Makefile    |   1 +
 drivers/net/wireless/rt2x00/rt2800pci.c | 244 +----------------------------
 drivers/net/wireless/rt2x00/rt2800soc.c | 263 ++++++++++++++++++++++++++++++++
 4 files changed, 284 insertions(+), 245 deletions(-)
 create mode 100644 drivers/net/wireless/rt2x00/rt2800soc.c

diff --git a/drivers/net/wireless/rt2x00/Kconfig b/drivers/net/wireless/rt2x00/Kconfig
index e86324931b63..006b8bcb2e31 100644
--- a/drivers/net/wireless/rt2x00/Kconfig
+++ b/drivers/net/wireless/rt2x00/Kconfig
@@ -58,12 +58,11 @@ config RT61PCI
 
 config RT2800PCI
 	tristate "Ralink rt27xx/rt28xx/rt30xx (PCI/PCIe/PCMCIA) support"
-	depends on PCI || SOC_RT288X || SOC_RT305X
+	depends on PCI
 	select RT2800_LIB
 	select RT2800_LIB_MMIO
 	select RT2X00_LIB_MMIO
-	select RT2X00_LIB_PCI if PCI
-	select RT2X00_LIB_SOC if SOC_RT288X || SOC_RT305X
+	select RT2X00_LIB_PCI
 	select RT2X00_LIB_FIRMWARE
 	select RT2X00_LIB_CRYPTO
 	select CRC_CCITT
@@ -200,6 +199,22 @@ config RT2800USB_UNKNOWN
 
 endif
 
+config RT2800SOC
+	tristate "Ralink WiSoC support"
+	depends on SOC_RT288X || SOC_RT305X
+	select RT2X00_LIB_SOC
+	select RT2X00_LIB_MMIO
+	select RT2X00_LIB_CRYPTO
+	select RT2X00_LIB_FIRMWARE
+	select RT2800_LIB
+	select RT2800_LIB_MMIO
+	---help---
+	  This adds support for Ralink WiSoC devices.
+	  Supported chips: RT2880, RT3050, RT3052, RT3350, RT3352.
+
+	  When compiled as a module, this driver will be called rt2800soc.
+
+
 config RT2800_LIB
 	tristate
 
diff --git a/drivers/net/wireless/rt2x00/Makefile b/drivers/net/wireless/rt2x00/Makefile
index d11e3562ab46..24a66015a495 100644
--- a/drivers/net/wireless/rt2x00/Makefile
+++ b/drivers/net/wireless/rt2x00/Makefile
@@ -22,3 +22,4 @@ obj-$(CONFIG_RT2800PCI)			+= rt2800pci.o
 obj-$(CONFIG_RT2500USB)			+= rt2500usb.o
 obj-$(CONFIG_RT73USB)			+= rt73usb.o
 obj-$(CONFIG_RT2800USB)			+= rt2800usb.o
+obj-$(CONFIG_RT2800SOC)			+= rt2800soc.o
diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 488d1c449349..260d2fdadc76 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -37,13 +37,11 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/pci.h>
-#include <linux/platform_device.h>
 #include <linux/eeprom_93cx6.h>
 
 #include "rt2x00.h"
 #include "rt2x00mmio.h"
 #include "rt2x00pci.h"
-#include "rt2x00soc.h"
 #include "rt2800lib.h"
 #include "rt2800mmio.h"
 #include "rt2800.h"
@@ -56,7 +54,6 @@ static bool modparam_nohwcrypt = false;
 module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
 MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
 
-#ifdef CONFIG_PCI
 static bool rt2800pci_hwcrypt_disabled(struct rt2x00_dev *rt2x00dev)
 {
 	return modparam_nohwcrypt;
@@ -449,230 +446,15 @@ static DEFINE_PCI_DEVICE_TABLE(rt2800pci_device_table) = {
 #endif
 	{ 0, }
 };
-#endif /* CONFIG_PCI */
 
 MODULE_AUTHOR(DRV_PROJECT);
 MODULE_VERSION(DRV_VERSION);
 MODULE_DESCRIPTION("Ralink RT2800 PCI & PCMCIA Wireless LAN driver.");
 MODULE_SUPPORTED_DEVICE("Ralink RT2860 PCI & PCMCIA chipset based cards");
-#ifdef CONFIG_PCI
 MODULE_FIRMWARE(FIRMWARE_RT2860);
 MODULE_DEVICE_TABLE(pci, rt2800pci_device_table);
-#endif /* CONFIG_PCI */
 MODULE_LICENSE("GPL");
 
-#if defined(CONFIG_SOC_RT288X) || defined(CONFIG_SOC_RT305X)
-static bool rt2800soc_hwcrypt_disabled(struct rt2x00_dev *rt2x00dev)
-{
-	return modparam_nohwcrypt;
-}
-
-static void rt2800soc_disable_radio(struct rt2x00_dev *rt2x00dev)
-{
-	rt2800_disable_radio(rt2x00dev);
-	rt2x00mmio_register_write(rt2x00dev, PWR_PIN_CFG, 0);
-	rt2x00mmio_register_write(rt2x00dev, TX_PIN_CFG, 0);
-}
-
-static int rt2800soc_set_device_state(struct rt2x00_dev *rt2x00dev,
-				      enum dev_state state)
-{
-	int retval = 0;
-
-	switch (state) {
-	case STATE_RADIO_ON:
-		retval = rt2800mmio_enable_radio(rt2x00dev);
-		break;
-
-	case STATE_RADIO_OFF:
-		rt2800soc_disable_radio(rt2x00dev);
-		break;
-
-	case STATE_RADIO_IRQ_ON:
-	case STATE_RADIO_IRQ_OFF:
-		rt2800mmio_toggle_irq(rt2x00dev, state);
-		break;
-
-	case STATE_DEEP_SLEEP:
-	case STATE_SLEEP:
-	case STATE_STANDBY:
-	case STATE_AWAKE:
-		/* These states are not supported, but don't report an error */
-		retval = 0;
-		break;
-
-	default:
-		retval = -ENOTSUPP;
-		break;
-	}
-
-	if (unlikely(retval))
-		rt2x00_err(rt2x00dev, "Device failed to enter state %d (%d)\n",
-			   state, retval);
-
-	return retval;
-}
-
-static int rt2800soc_read_eeprom(struct rt2x00_dev *rt2x00dev)
-{
-	void __iomem *base_addr = ioremap(0x1F040000, EEPROM_SIZE);
-
-	if (!base_addr)
-		return -ENOMEM;
-
-	memcpy_fromio(rt2x00dev->eeprom, base_addr, EEPROM_SIZE);
-
-	iounmap(base_addr);
-	return 0;
-}
-
-/* Firmware functions */
-static char *rt2800soc_get_firmware_name(struct rt2x00_dev *rt2x00dev)
-{
-	WARN_ON_ONCE(1);
-	return NULL;
-}
-
-static int rt2800soc_load_firmware(struct rt2x00_dev *rt2x00dev,
-				   const u8 *data, const size_t len)
-{
-	WARN_ON_ONCE(1);
-	return 0;
-}
-
-static int rt2800soc_check_firmware(struct rt2x00_dev *rt2x00dev,
-				    const u8 *data, const size_t len)
-{
-	WARN_ON_ONCE(1);
-	return 0;
-}
-
-static int rt2800soc_write_firmware(struct rt2x00_dev *rt2x00dev,
-				    const u8 *data, const size_t len)
-{
-	WARN_ON_ONCE(1);
-	return 0;
-}
-
-static const struct ieee80211_ops rt2800soc_mac80211_ops = {
-	.tx			= rt2x00mac_tx,
-	.start			= rt2x00mac_start,
-	.stop			= rt2x00mac_stop,
-	.add_interface		= rt2x00mac_add_interface,
-	.remove_interface	= rt2x00mac_remove_interface,
-	.config			= rt2x00mac_config,
-	.configure_filter	= rt2x00mac_configure_filter,
-	.set_key		= rt2x00mac_set_key,
-	.sw_scan_start		= rt2x00mac_sw_scan_start,
-	.sw_scan_complete	= rt2x00mac_sw_scan_complete,
-	.get_stats		= rt2x00mac_get_stats,
-	.get_tkip_seq		= rt2800_get_tkip_seq,
-	.set_rts_threshold	= rt2800_set_rts_threshold,
-	.sta_add		= rt2x00mac_sta_add,
-	.sta_remove		= rt2x00mac_sta_remove,
-	.bss_info_changed	= rt2x00mac_bss_info_changed,
-	.conf_tx		= rt2800_conf_tx,
-	.get_tsf		= rt2800_get_tsf,
-	.rfkill_poll		= rt2x00mac_rfkill_poll,
-	.ampdu_action		= rt2800_ampdu_action,
-	.flush			= rt2x00mac_flush,
-	.get_survey		= rt2800_get_survey,
-	.get_ringparam		= rt2x00mac_get_ringparam,
-	.tx_frames_pending	= rt2x00mac_tx_frames_pending,
-};
-
-static const struct rt2800_ops rt2800soc_rt2800_ops = {
-	.register_read		= rt2x00mmio_register_read,
-	.register_read_lock	= rt2x00mmio_register_read, /* same for SoCs */
-	.register_write		= rt2x00mmio_register_write,
-	.register_write_lock	= rt2x00mmio_register_write, /* same for SoCs */
-	.register_multiread	= rt2x00mmio_register_multiread,
-	.register_multiwrite	= rt2x00mmio_register_multiwrite,
-	.regbusy_read		= rt2x00mmio_regbusy_read,
-	.read_eeprom		= rt2800soc_read_eeprom,
-	.hwcrypt_disabled	= rt2800soc_hwcrypt_disabled,
-	.drv_write_firmware	= rt2800soc_write_firmware,
-	.drv_init_registers	= rt2800mmio_init_registers,
-	.drv_get_txwi		= rt2800mmio_get_txwi,
-};
-
-static const struct rt2x00lib_ops rt2800soc_rt2x00_ops = {
-	.irq_handler		= rt2800mmio_interrupt,
-	.txstatus_tasklet	= rt2800mmio_txstatus_tasklet,
-	.pretbtt_tasklet	= rt2800mmio_pretbtt_tasklet,
-	.tbtt_tasklet		= rt2800mmio_tbtt_tasklet,
-	.rxdone_tasklet		= rt2800mmio_rxdone_tasklet,
-	.autowake_tasklet	= rt2800mmio_autowake_tasklet,
-	.probe_hw		= rt2800_probe_hw,
-	.get_firmware_name	= rt2800soc_get_firmware_name,
-	.check_firmware		= rt2800soc_check_firmware,
-	.load_firmware		= rt2800soc_load_firmware,
-	.initialize		= rt2x00mmio_initialize,
-	.uninitialize		= rt2x00mmio_uninitialize,
-	.get_entry_state	= rt2800mmio_get_entry_state,
-	.clear_entry		= rt2800mmio_clear_entry,
-	.set_device_state	= rt2800soc_set_device_state,
-	.rfkill_poll		= rt2800_rfkill_poll,
-	.link_stats		= rt2800_link_stats,
-	.reset_tuner		= rt2800_reset_tuner,
-	.link_tuner		= rt2800_link_tuner,
-	.gain_calibration	= rt2800_gain_calibration,
-	.vco_calibration	= rt2800_vco_calibration,
-	.start_queue		= rt2800mmio_start_queue,
-	.kick_queue		= rt2800mmio_kick_queue,
-	.stop_queue		= rt2800mmio_stop_queue,
-	.flush_queue		= rt2x00mmio_flush_queue,
-	.write_tx_desc		= rt2800mmio_write_tx_desc,
-	.write_tx_data		= rt2800_write_tx_data,
-	.write_beacon		= rt2800_write_beacon,
-	.clear_beacon		= rt2800_clear_beacon,
-	.fill_rxdone		= rt2800mmio_fill_rxdone,
-	.config_shared_key	= rt2800_config_shared_key,
-	.config_pairwise_key	= rt2800_config_pairwise_key,
-	.config_filter		= rt2800_config_filter,
-	.config_intf		= rt2800_config_intf,
-	.config_erp		= rt2800_config_erp,
-	.config_ant		= rt2800_config_ant,
-	.config			= rt2800_config,
-	.sta_add		= rt2800_sta_add,
-	.sta_remove		= rt2800_sta_remove,
-};
-
-static const struct rt2x00_ops rt2800soc_ops = {
-	.name			= KBUILD_MODNAME,
-	.drv_data_size		= sizeof(struct rt2800_drv_data),
-	.max_ap_intf		= 8,
-	.eeprom_size		= EEPROM_SIZE,
-	.rf_size		= RF_SIZE,
-	.tx_queues		= NUM_TX_QUEUES,
-	.queue_init		= rt2800mmio_queue_init,
-	.lib			= &rt2800soc_rt2x00_ops,
-	.drv			= &rt2800soc_rt2800_ops,
-	.hw			= &rt2800soc_mac80211_ops,
-#ifdef CONFIG_RT2X00_LIB_DEBUGFS
-	.debugfs		= &rt2800_rt2x00debug,
-#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
-};
-
-static int rt2800soc_probe(struct platform_device *pdev)
-{
-	return rt2x00soc_probe(pdev, &rt2800soc_ops);
-}
-
-static struct platform_driver rt2800soc_driver = {
-	.driver		= {
-		.name		= "rt2800_wmac",
-		.owner		= THIS_MODULE,
-		.mod_name	= KBUILD_MODNAME,
-	},
-	.probe		= rt2800soc_probe,
-	.remove		= rt2x00soc_remove,
-	.suspend	= rt2x00soc_suspend,
-	.resume		= rt2x00soc_resume,
-};
-#endif /* CONFIG_SOC_RT288X || CONFIG_SOC_RT305X */
-
-#ifdef CONFIG_PCI
 static int rt2800pci_probe(struct pci_dev *pci_dev,
 			   const struct pci_device_id *id)
 {
@@ -687,38 +469,16 @@ static struct pci_driver rt2800pci_driver = {
 	.suspend	= rt2x00pci_suspend,
 	.resume		= rt2x00pci_resume,
 };
-#endif /* CONFIG_PCI */
+
 
 static int __init rt2800pci_init(void)
 {
-	int ret = 0;
-
-#if defined(CONFIG_SOC_RT288X) || defined(CONFIG_SOC_RT305X)
-	ret = platform_driver_register(&rt2800soc_driver);
-	if (ret)
-		return ret;
-#endif
-#ifdef CONFIG_PCI
-	ret = pci_register_driver(&rt2800pci_driver);
-	if (ret) {
-#if defined(CONFIG_SOC_RT288X) || defined(CONFIG_SOC_RT305X)
-		platform_driver_unregister(&rt2800soc_driver);
-#endif
-		return ret;
-	}
-#endif
-
-	return ret;
+	return pci_register_driver(&rt2800pci_driver);
 }
 
 static void __exit rt2800pci_exit(void)
 {
-#ifdef CONFIG_PCI
 	pci_unregister_driver(&rt2800pci_driver);
-#endif
-#if defined(CONFIG_SOC_RT288X) || defined(CONFIG_SOC_RT305X)
-	platform_driver_unregister(&rt2800soc_driver);
-#endif
 }
 
 module_init(rt2800pci_init);
diff --git a/drivers/net/wireless/rt2x00/rt2800soc.c b/drivers/net/wireless/rt2x00/rt2800soc.c
new file mode 100644
index 000000000000..1359227ca411
--- /dev/null
+++ b/drivers/net/wireless/rt2x00/rt2800soc.c
@@ -0,0 +1,263 @@
+/*	Copyright (C) 2009 - 2010 Ivo van Doorn <IvDoorn@gmail.com>
+ *	Copyright (C) 2009 Alban Browaeys <prahal@yahoo.com>
+ *	Copyright (C) 2009 Felix Fietkau <nbd@openwrt.org>
+ *	Copyright (C) 2009 Luis Correia <luis.f.correia@gmail.com>
+ *	Copyright (C) 2009 Mattias Nissler <mattias.nissler@gmx.de>
+ *	Copyright (C) 2009 Mark Asselstine <asselsm@gmail.com>
+ *	Copyright (C) 2009 Xose Vazquez Perez <xose.vazquez@gmail.com>
+ *	Copyright (C) 2009 Bart Zolnierkiewicz <bzolnier@gmail.com>
+ *	<http://rt2x00.serialmonkey.com>
+ *
+ *	This program is free software; you can redistribute it and/or modify
+ *	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation; either version 2 of the License, or
+ *	(at your option) any later version.
+ *
+ *	This program is distributed in the hope that it will be useful,
+ *	but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *	GNU General Public License for more details.
+ *
+ *	You should have received a copy of the GNU General Public License
+ *	along with this program; if not, write to the
+ *	Free Software Foundation, Inc.,
+ *	59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+/*	Module: rt2800soc
+ *	Abstract: rt2800 WiSoC specific routines.
+ */
+
+#include <linux/etherdevice.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include "rt2x00.h"
+#include "rt2x00mmio.h"
+#include "rt2x00soc.h"
+#include "rt2800.h"
+#include "rt2800lib.h"
+#include "rt2800mmio.h"
+
+/* Allow hardware encryption to be disabled. */
+static bool modparam_nohwcrypt;
+module_param_named(nohwcrypt, modparam_nohwcrypt, bool, S_IRUGO);
+MODULE_PARM_DESC(nohwcrypt, "Disable hardware encryption.");
+
+static bool rt2800soc_hwcrypt_disabled(struct rt2x00_dev *rt2x00dev)
+{
+	return modparam_nohwcrypt;
+}
+
+static void rt2800soc_disable_radio(struct rt2x00_dev *rt2x00dev)
+{
+	rt2800_disable_radio(rt2x00dev);
+	rt2x00mmio_register_write(rt2x00dev, PWR_PIN_CFG, 0);
+	rt2x00mmio_register_write(rt2x00dev, TX_PIN_CFG, 0);
+}
+
+static int rt2800soc_set_device_state(struct rt2x00_dev *rt2x00dev,
+				      enum dev_state state)
+{
+	int retval = 0;
+
+	switch (state) {
+	case STATE_RADIO_ON:
+		retval = rt2800mmio_enable_radio(rt2x00dev);
+		break;
+
+	case STATE_RADIO_OFF:
+		rt2800soc_disable_radio(rt2x00dev);
+		break;
+
+	case STATE_RADIO_IRQ_ON:
+	case STATE_RADIO_IRQ_OFF:
+		rt2800mmio_toggle_irq(rt2x00dev, state);
+		break;
+
+	case STATE_DEEP_SLEEP:
+	case STATE_SLEEP:
+	case STATE_STANDBY:
+	case STATE_AWAKE:
+		/* These states are not supported, but don't report an error */
+		retval = 0;
+		break;
+
+	default:
+		retval = -ENOTSUPP;
+		break;
+	}
+
+	if (unlikely(retval))
+		rt2x00_err(rt2x00dev, "Device failed to enter state %d (%d)\n",
+			   state, retval);
+
+	return retval;
+}
+
+static int rt2800soc_read_eeprom(struct rt2x00_dev *rt2x00dev)
+{
+	void __iomem *base_addr = ioremap(0x1F040000, EEPROM_SIZE);
+
+	if (!base_addr)
+		return -ENOMEM;
+
+	memcpy_fromio(rt2x00dev->eeprom, base_addr, EEPROM_SIZE);
+
+	iounmap(base_addr);
+	return 0;
+}
+
+/* Firmware functions */
+static char *rt2800soc_get_firmware_name(struct rt2x00_dev *rt2x00dev)
+{
+	WARN_ON_ONCE(1);
+	return NULL;
+}
+
+static int rt2800soc_load_firmware(struct rt2x00_dev *rt2x00dev,
+				   const u8 *data, const size_t len)
+{
+	WARN_ON_ONCE(1);
+	return 0;
+}
+
+static int rt2800soc_check_firmware(struct rt2x00_dev *rt2x00dev,
+				    const u8 *data, const size_t len)
+{
+	WARN_ON_ONCE(1);
+	return 0;
+}
+
+static int rt2800soc_write_firmware(struct rt2x00_dev *rt2x00dev,
+				    const u8 *data, const size_t len)
+{
+	WARN_ON_ONCE(1);
+	return 0;
+}
+
+static const struct ieee80211_ops rt2800soc_mac80211_ops = {
+	.tx			= rt2x00mac_tx,
+	.start			= rt2x00mac_start,
+	.stop			= rt2x00mac_stop,
+	.add_interface		= rt2x00mac_add_interface,
+	.remove_interface	= rt2x00mac_remove_interface,
+	.config			= rt2x00mac_config,
+	.configure_filter	= rt2x00mac_configure_filter,
+	.set_key		= rt2x00mac_set_key,
+	.sw_scan_start		= rt2x00mac_sw_scan_start,
+	.sw_scan_complete	= rt2x00mac_sw_scan_complete,
+	.get_stats		= rt2x00mac_get_stats,
+	.get_tkip_seq		= rt2800_get_tkip_seq,
+	.set_rts_threshold	= rt2800_set_rts_threshold,
+	.sta_add		= rt2x00mac_sta_add,
+	.sta_remove		= rt2x00mac_sta_remove,
+	.bss_info_changed	= rt2x00mac_bss_info_changed,
+	.conf_tx		= rt2800_conf_tx,
+	.get_tsf		= rt2800_get_tsf,
+	.rfkill_poll		= rt2x00mac_rfkill_poll,
+	.ampdu_action		= rt2800_ampdu_action,
+	.flush			= rt2x00mac_flush,
+	.get_survey		= rt2800_get_survey,
+	.get_ringparam		= rt2x00mac_get_ringparam,
+	.tx_frames_pending	= rt2x00mac_tx_frames_pending,
+};
+
+static const struct rt2800_ops rt2800soc_rt2800_ops = {
+	.register_read		= rt2x00mmio_register_read,
+	.register_read_lock	= rt2x00mmio_register_read, /* same for SoCs */
+	.register_write		= rt2x00mmio_register_write,
+	.register_write_lock	= rt2x00mmio_register_write, /* same for SoCs */
+	.register_multiread	= rt2x00mmio_register_multiread,
+	.register_multiwrite	= rt2x00mmio_register_multiwrite,
+	.regbusy_read		= rt2x00mmio_regbusy_read,
+	.read_eeprom		= rt2800soc_read_eeprom,
+	.hwcrypt_disabled	= rt2800soc_hwcrypt_disabled,
+	.drv_write_firmware	= rt2800soc_write_firmware,
+	.drv_init_registers	= rt2800mmio_init_registers,
+	.drv_get_txwi		= rt2800mmio_get_txwi,
+};
+
+static const struct rt2x00lib_ops rt2800soc_rt2x00_ops = {
+	.irq_handler		= rt2800mmio_interrupt,
+	.txstatus_tasklet	= rt2800mmio_txstatus_tasklet,
+	.pretbtt_tasklet	= rt2800mmio_pretbtt_tasklet,
+	.tbtt_tasklet		= rt2800mmio_tbtt_tasklet,
+	.rxdone_tasklet		= rt2800mmio_rxdone_tasklet,
+	.autowake_tasklet	= rt2800mmio_autowake_tasklet,
+	.probe_hw		= rt2800_probe_hw,
+	.get_firmware_name	= rt2800soc_get_firmware_name,
+	.check_firmware		= rt2800soc_check_firmware,
+	.load_firmware		= rt2800soc_load_firmware,
+	.initialize		= rt2x00mmio_initialize,
+	.uninitialize		= rt2x00mmio_uninitialize,
+	.get_entry_state	= rt2800mmio_get_entry_state,
+	.clear_entry		= rt2800mmio_clear_entry,
+	.set_device_state	= rt2800soc_set_device_state,
+	.rfkill_poll		= rt2800_rfkill_poll,
+	.link_stats		= rt2800_link_stats,
+	.reset_tuner		= rt2800_reset_tuner,
+	.link_tuner		= rt2800_link_tuner,
+	.gain_calibration	= rt2800_gain_calibration,
+	.vco_calibration	= rt2800_vco_calibration,
+	.start_queue		= rt2800mmio_start_queue,
+	.kick_queue		= rt2800mmio_kick_queue,
+	.stop_queue		= rt2800mmio_stop_queue,
+	.flush_queue		= rt2x00mmio_flush_queue,
+	.write_tx_desc		= rt2800mmio_write_tx_desc,
+	.write_tx_data		= rt2800_write_tx_data,
+	.write_beacon		= rt2800_write_beacon,
+	.clear_beacon		= rt2800_clear_beacon,
+	.fill_rxdone		= rt2800mmio_fill_rxdone,
+	.config_shared_key	= rt2800_config_shared_key,
+	.config_pairwise_key	= rt2800_config_pairwise_key,
+	.config_filter		= rt2800_config_filter,
+	.config_intf		= rt2800_config_intf,
+	.config_erp		= rt2800_config_erp,
+	.config_ant		= rt2800_config_ant,
+	.config			= rt2800_config,
+	.sta_add		= rt2800_sta_add,
+	.sta_remove		= rt2800_sta_remove,
+};
+
+static const struct rt2x00_ops rt2800soc_ops = {
+	.name			= KBUILD_MODNAME,
+	.drv_data_size		= sizeof(struct rt2800_drv_data),
+	.max_ap_intf		= 8,
+	.eeprom_size		= EEPROM_SIZE,
+	.rf_size		= RF_SIZE,
+	.tx_queues		= NUM_TX_QUEUES,
+	.queue_init		= rt2800mmio_queue_init,
+	.lib			= &rt2800soc_rt2x00_ops,
+	.drv			= &rt2800soc_rt2800_ops,
+	.hw			= &rt2800soc_mac80211_ops,
+#ifdef CONFIG_RT2X00_LIB_DEBUGFS
+	.debugfs		= &rt2800_rt2x00debug,
+#endif /* CONFIG_RT2X00_LIB_DEBUGFS */
+};
+
+static int rt2800soc_probe(struct platform_device *pdev)
+{
+	return rt2x00soc_probe(pdev, &rt2800soc_ops);
+}
+
+static struct platform_driver rt2800soc_driver = {
+	.driver		= {
+		.name		= "rt2800_wmac",
+		.owner		= THIS_MODULE,
+		.mod_name	= KBUILD_MODNAME,
+	},
+	.probe		= rt2800soc_probe,
+	.remove		= rt2x00soc_remove,
+	.suspend	= rt2x00soc_suspend,
+	.resume		= rt2x00soc_resume,
+};
+
+module_platform_driver(rt2800soc_driver);
+
+MODULE_AUTHOR(DRV_PROJECT);
+MODULE_VERSION(DRV_VERSION);
+MODULE_DESCRIPTION("Ralink WiSoC Wireless LAN driver.");
+MODULE_LICENSE("GPL");
-- 
cgit 


From a1b13b9ad3759dca24c6b721ee026c540a4e6564 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Thu, 17 Oct 2013 09:42:35 +0200
Subject: rt2x00: rt2800pci: use module_pci_driver macro

Use the module_pci_driver() macro to make the code simpler
by eliminating module_init and module_exit calls.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800pci.c | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800pci.c b/drivers/net/wireless/rt2x00/rt2800pci.c
index 260d2fdadc76..b504455b4fec 100644
--- a/drivers/net/wireless/rt2x00/rt2800pci.c
+++ b/drivers/net/wireless/rt2x00/rt2800pci.c
@@ -470,16 +470,4 @@ static struct pci_driver rt2800pci_driver = {
 	.resume		= rt2x00pci_resume,
 };
 
-
-static int __init rt2800pci_init(void)
-{
-	return pci_register_driver(&rt2800pci_driver);
-}
-
-static void __exit rt2800pci_exit(void)
-{
-	pci_unregister_driver(&rt2800pci_driver);
-}
-
-module_init(rt2800pci_init);
-module_exit(rt2800pci_exit);
+module_pci_driver(rt2800pci_driver);
-- 
cgit 


From 9877b25382e770618d0a36a3024d8a3c67eee9ea Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 17 Oct 2013 13:34:11 -0700
Subject: fib: Use const struct nl_info * in rtmsg_fib

The rtmsg_fib function doesn't modify this argument so mark
it const.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/fib_lookup.h    | 2 +-
 net/ipv4/fib_semantics.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/fib_lookup.h b/net/ipv4/fib_lookup.h
index af0f14aba169..50cfb3ef560f 100644
--- a/net/ipv4/fib_lookup.h
+++ b/net/ipv4/fib_lookup.h
@@ -32,7 +32,7 @@ extern int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
 			 int dst_len, u8 tos, struct fib_info *fi,
 			 unsigned int);
 extern void rtmsg_fib(int event, __be32 key, struct fib_alias *fa,
-		      int dst_len, u32 tb_id, struct nl_info *info,
+		      int dst_len, u32 tb_id, const struct nl_info *info,
 		      unsigned int nlm_flags);
 extern struct fib_alias *fib_find_alias(struct list_head *fah,
 					u8 tos, u32 prio);
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index d5dbca5ecf62..e63f47a4e651 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -380,7 +380,7 @@ static inline size_t fib_nlmsg_size(struct fib_info *fi)
 }
 
 void rtmsg_fib(int event, __be32 key, struct fib_alias *fa,
-	       int dst_len, u32 tb_id, struct nl_info *info,
+	       int dst_len, u32 tb_id, const struct nl_info *info,
 	       unsigned int nlm_flags)
 {
 	struct sk_buff *skb;
-- 
cgit 


From de36d817b4ecf0dabec6ec7448b4d13fa347ffb5 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 18 Oct 2013 13:04:00 +0100
Subject: iio: adc: mcp3422: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/mcp3422.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/adc/mcp3422.c b/drivers/iio/adc/mcp3422.c
index bc93f538cb13..12948325431c 100644
--- a/drivers/iio/adc/mcp3422.c
+++ b/drivers/iio/adc/mcp3422.c
@@ -20,6 +20,7 @@
 #include <linux/module.h>
 #include <linux/delay.h>
 #include <linux/sysfs.h>
+#include <linux/of.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
-- 
cgit 


From 62ba493ea49a49bcef5888ef9788b1448088b96a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 18 Oct 2013 13:04:00 +0100
Subject: iio: adc: nau7802: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/nau7802.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/adc/nau7802.c b/drivers/iio/adc/nau7802.c
index bdf03468f3b8..adff9cbbcbc4 100644
--- a/drivers/iio/adc/nau7802.c
+++ b/drivers/iio/adc/nau7802.c
@@ -12,6 +12,7 @@
 #include <linux/module.h>
 #include <linux/wait.h>
 #include <linux/log2.h>
+#include <linux/of.h>
 
 #include <linux/iio/iio.h>
 #include <linux/iio/sysfs.h>
-- 
cgit 


From 1f100e80bb27d9e7128a451324dc402ce524e9ea Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 18 Oct 2013 13:04:00 +0100
Subject: iio: adc: ti-adc081c: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ti-adc081c.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/adc/ti-adc081c.c b/drivers/iio/adc/ti-adc081c.c
index ee5f72bffe5a..b3a82b4d1a75 100644
--- a/drivers/iio/adc/ti-adc081c.c
+++ b/drivers/iio/adc/ti-adc081c.c
@@ -9,6 +9,7 @@
 #include <linux/err.h>
 #include <linux/i2c.h>
 #include <linux/module.h>
+#include <linux/of.h>
 
 #include <linux/iio/iio.h>
 #include <linux/regulator/consumer.h>
-- 
cgit 


From 43e01beda4b578e947aafb5b5ee19e5bb598e8ca Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 18 Oct 2013 13:04:00 +0100
Subject: iio: light: gp2ap020a00f: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/light/gp2ap020a00f.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/light/gp2ap020a00f.c b/drivers/iio/light/gp2ap020a00f.c
index a530e7712a8e..dc79835be308 100644
--- a/drivers/iio/light/gp2ap020a00f.c
+++ b/drivers/iio/light/gp2ap020a00f.c
@@ -42,6 +42,7 @@
 #include <linux/irq_work.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
+#include <linux/of.h>
 #include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
-- 
cgit 


From 23b4faa9a36257e75dade0f2945bc3e487e6f463 Mon Sep 17 00:00:00 2001
From: Markus Mayer <markus.mayer@linaro.org>
Date: Fri, 18 Oct 2013 11:50:03 -0700
Subject: gpio: bcm281xx: Don't print addresses of GPIO area in probe()

The physical address of the GPIO memory address is already printed
implicitly by dev_info() as part of the device name. The virtual
address doesn't add any value. In addition, printing a resource_size_t
with %x lead to a compiler warning on some platforms.

Signed-off-by: Markus Mayer <markus.mayer@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-bcm-kona.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-bcm-kona.c b/drivers/gpio/gpio-bcm-kona.c
index 58188bafba43..b3d0f8163277 100644
--- a/drivers/gpio/gpio-bcm-kona.c
+++ b/drivers/gpio/gpio-bcm-kona.c
@@ -587,8 +587,7 @@ static int bcm_kona_gpio_probe(struct platform_device *pdev)
 		}
 	}
 
-	dev_info(&pdev->dev, "Setting up Kona GPIO at 0x%p (phys %#x)\n",
-		 kona_gpio->reg_base, res->start);
+	dev_info(&pdev->dev, "Setting up Kona GPIO\n");
 
 	bcm_kona_gpio_reset(kona_gpio);
 
-- 
cgit 


From 3ba405db1c1b05d157474c71e559393f7ea436ad Mon Sep 17 00:00:00 2001
From: Claudiu Manoil <claudiu.manoil@freescale.com>
Date: Mon, 14 Oct 2013 17:05:09 +0300
Subject: gianfar: Simplify MQ polling to avoid soft lockup

Under certain low traffic conditions, the single core
devices with multiple Rx/Tx queues (MQ mode) may reach
soft lockup due to gfar_poll not returning in proper time.
The following exception was obtained using iperf on a 100Mbit
half-duplex link, for a p1010 single core device:

BUG: soft lockup - CPU#0 stuck for 23s! [iperf:2847]
Modules linked in:
CPU: 0 PID: 2847 Comm: iperf Not tainted 3.12.0-rc3 #16
task: e8bf8000 ti: eeb16000 task.ti: ee646000
NIP: c0255b6c LR: c0367ae8 CTR: c0461c18
REGS: eeb17e70 TRAP: 0901   Not tainted  (3.12.0-rc3)
MSR: 00029000 <CE,EE,ME>  CR: 44228428  XER: 20000000

GPR00: c0367ad4 eeb17f20 e8bf8000 ee01f4b4 00000008 ffffffff ffffffff
00000000
GPR08: 000000c0 00000008 000000ff ffffffc0 000193fe
NIP [c0255b6c] find_next_bit+0xb8/0xc4
LR [c0367ae8] gfar_poll+0xc8/0x1d8
Call Trace:
[eeb17f20] [c0367ad4] gfar_poll+0xb4/0x1d8 (unreliable)
[eeb17f70] [c0422100] net_rx_action+0xa4/0x158
[eeb17fa0] [c003ec6c] __do_softirq+0xcc/0x17c
[eeb17ff0] [c000c28c] call_do_softirq+0x24/0x3c
[ee647cc0] [c0004660] do_softirq+0x6c/0x94
[ee647ce0] [c003eb9c] local_bh_enable+0x9c/0xa0
[ee647cf0] [c0454fe8] tcp_prequeue_process+0xa4/0xdc
[ee647d10] [c0457e44] tcp_recvmsg+0x498/0x96c
[ee647d80] [c047b630] inet_recvmsg+0x40/0x64
[ee647da0] [c040ca8c] sock_recvmsg+0x90/0xc0
[ee647e30] [c040edb8] SyS_recvfrom+0x98/0xfc

To prevent this, the outer while() loop has been removed
allowing gfar_poll() to return faster even if there's
still budget left.  Also, there's no need to recompute
the budget per Rx queue anymore.

Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/freescale/gianfar.c | 87 ++++++++++++++------------------
 1 file changed, 38 insertions(+), 49 deletions(-)

diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c
index c4eaadeb572f..186dc4a489a4 100644
--- a/drivers/net/ethernet/freescale/gianfar.c
+++ b/drivers/net/ethernet/freescale/gianfar.c
@@ -2900,7 +2900,7 @@ static int gfar_poll(struct napi_struct *napi, int budget)
 	struct gfar_priv_rx_q *rx_queue = NULL;
 	int work_done = 0, work_done_per_q = 0;
 	int i, budget_per_q = 0;
-	int has_tx_work;
+	int has_tx_work = 0;
 	unsigned long rstat_rxf;
 	int num_act_queues;
 
@@ -2915,62 +2915,51 @@ static int gfar_poll(struct napi_struct *napi, int budget)
 	if (num_act_queues)
 		budget_per_q = budget/num_act_queues;
 
-	while (1) {
-		has_tx_work = 0;
-		for_each_set_bit(i, &gfargrp->tx_bit_map, priv->num_tx_queues) {
-			tx_queue = priv->tx_queue[i];
-			/* run Tx cleanup to completion */
-			if (tx_queue->tx_skbuff[tx_queue->skb_dirtytx]) {
-				gfar_clean_tx_ring(tx_queue);
-				has_tx_work = 1;
-			}
+	for_each_set_bit(i, &gfargrp->tx_bit_map, priv->num_tx_queues) {
+		tx_queue = priv->tx_queue[i];
+		/* run Tx cleanup to completion */
+		if (tx_queue->tx_skbuff[tx_queue->skb_dirtytx]) {
+			gfar_clean_tx_ring(tx_queue);
+			has_tx_work = 1;
 		}
+	}
 
-		for_each_set_bit(i, &gfargrp->rx_bit_map, priv->num_rx_queues) {
-			/* skip queue if not active */
-			if (!(rstat_rxf & (RSTAT_CLEAR_RXF0 >> i)))
-				continue;
-
-			rx_queue = priv->rx_queue[i];
-			work_done_per_q =
-				gfar_clean_rx_ring(rx_queue, budget_per_q);
-			work_done += work_done_per_q;
-
-			/* finished processing this queue */
-			if (work_done_per_q < budget_per_q) {
-				/* clear active queue hw indication */
-				gfar_write(&regs->rstat,
-					   RSTAT_CLEAR_RXF0 >> i);
-				rstat_rxf &= ~(RSTAT_CLEAR_RXF0 >> i);
-				num_act_queues--;
-
-				if (!num_act_queues)
-					break;
-				/* recompute budget per Rx queue */
-				budget_per_q =
-					(budget - work_done) / num_act_queues;
-			}
-		}
+	for_each_set_bit(i, &gfargrp->rx_bit_map, priv->num_rx_queues) {
+		/* skip queue if not active */
+		if (!(rstat_rxf & (RSTAT_CLEAR_RXF0 >> i)))
+			continue;
 
-		if (work_done >= budget)
-			break;
+		rx_queue = priv->rx_queue[i];
+		work_done_per_q =
+			gfar_clean_rx_ring(rx_queue, budget_per_q);
+		work_done += work_done_per_q;
+
+		/* finished processing this queue */
+		if (work_done_per_q < budget_per_q) {
+			/* clear active queue hw indication */
+			gfar_write(&regs->rstat,
+				   RSTAT_CLEAR_RXF0 >> i);
+			num_act_queues--;
+
+			if (!num_act_queues)
+				break;
+		}
+	}
 
-		if (!num_act_queues && !has_tx_work) {
+	if (!num_act_queues && !has_tx_work) {
 
-			napi_complete(napi);
+		napi_complete(napi);
 
-			/* Clear the halt bit in RSTAT */
-			gfar_write(&regs->rstat, gfargrp->rstat);
+		/* Clear the halt bit in RSTAT */
+		gfar_write(&regs->rstat, gfargrp->rstat);
 
-			gfar_write(&regs->imask, IMASK_DEFAULT);
+		gfar_write(&regs->imask, IMASK_DEFAULT);
 
-			/* If we are coalescing interrupts, update the timer
-			 * Otherwise, clear it
-			 */
-			gfar_configure_coalescing(priv, gfargrp->rx_bit_map,
-						  gfargrp->tx_bit_map);
-			break;
-		}
+		/* If we are coalescing interrupts, update the timer
+		 * Otherwise, clear it
+		 */
+		gfar_configure_coalescing(priv, gfargrp->rx_bit_map,
+					  gfargrp->tx_bit_map);
 	}
 
 	return work_done;
-- 
cgit 


From 7bc9b1cffc95675a957e870d258e95d43dcbba0b Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Fri, 18 Oct 2013 22:20:40 +0200
Subject: PM / Hibernate: Use bool for boolean fields of struct snapshot_data

The snapshot_data structure used internally by the hibernate user
space interface code in user.c has three char fields that are used
to store boolean values.  Change their data type to bool and use
true and false instead of 1 and 0, respectively, in assignments
involving those fields.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 kernel/power/user.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/kernel/power/user.c b/kernel/power/user.c
index 957f06164ad1..24850270c802 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -36,9 +36,9 @@ static struct snapshot_data {
 	struct snapshot_handle handle;
 	int swap;
 	int mode;
-	char frozen;
-	char ready;
-	char platform_support;
+	bool frozen;
+	bool ready;
+	bool platform_support;
 	bool free_bitmaps;
 } snapshot_state;
 
@@ -93,9 +93,9 @@ static int snapshot_open(struct inode *inode, struct file *filp)
 	if (error)
 		atomic_inc(&snapshot_device_available);
 
-	data->frozen = 0;
-	data->ready = 0;
-	data->platform_support = 0;
+	data->frozen = false;
+	data->ready = false;
+	data->platform_support = false;
 
  Unlock:
 	unlock_system_sleep();
@@ -229,7 +229,7 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
 		if (error)
 			thaw_processes();
 		else
-			data->frozen = 1;
+			data->frozen = true;
 
 		break;
 
@@ -240,7 +240,7 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
 		free_basic_memory_bitmaps();
 		data->free_bitmaps = false;
 		thaw_processes();
-		data->frozen = 0;
+		data->frozen = false;
 		break;
 
 	case SNAPSHOT_CREATE_IMAGE:
@@ -270,7 +270,7 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
 	case SNAPSHOT_FREE:
 		swsusp_free();
 		memset(&data->handle, 0, sizeof(struct snapshot_handle));
-		data->ready = 0;
+		data->ready = false;
 		/*
 		 * It is necessary to thaw kernel threads here, because
 		 * SNAPSHOT_CREATE_IMAGE may be invoked directly after
@@ -334,7 +334,7 @@ static long snapshot_ioctl(struct file *filp, unsigned int cmd,
 		 * PM_HIBERNATION_PREPARE
 		 */
 		error = suspend_devices_and_enter(PM_SUSPEND_MEM);
-		data->ready = 0;
+		data->ready = false;
 		break;
 
 	case SNAPSHOT_PLATFORM_SUPPORT:
-- 
cgit 


From 675297c904b419542a93de64afaf2a6bd72e35e3 Mon Sep 17 00:00:00 2001
From: Neal Cardwell <ncardwell@google.com>
Date: Wed, 16 Oct 2013 12:36:51 -0400
Subject: tcp: remove redundant code in __tcp_retransmit_skb()

Remove the specialized code in __tcp_retransmit_skb() that tries to trim
any ACKed payload preceding a FIN before we retransmit (this was added
in 1999 in v2.2.3pre3). This trimming code was made unreachable by the
more general code added above it that uses tcp_trim_head() to trim any
ACKed payload, with or without a FIN (this was added in "[NET]: Add
segmentation offload support to TCP." in 2002 circa v2.5.33).

Signed-off-by: Neal Cardwell <ncardwell@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/tcp_output.c | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index e5ce0e1d13b7..ce7c4d9d9195 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2351,21 +2351,6 @@ int __tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
 
 	tcp_retrans_try_collapse(sk, skb, cur_mss);
 
-	/* Some Solaris stacks overoptimize and ignore the FIN on a
-	 * retransmit when old data is attached.  So strip it off
-	 * since it is cheap to do so and saves bytes on the network.
-	 */
-	if (skb->len > 0 &&
-	    (TCP_SKB_CB(skb)->tcp_flags & TCPHDR_FIN) &&
-	    tp->snd_una == (TCP_SKB_CB(skb)->end_seq - 1)) {
-		if (!pskb_trim(skb, 0)) {
-			/* Reuse, even though it does some unnecessary work */
-			tcp_init_nondata_skb(skb, TCP_SKB_CB(skb)->end_seq - 1,
-					     TCP_SKB_CB(skb)->tcp_flags);
-			skb->ip_summed = CHECKSUM_NONE;
-		}
-	}
-
 	/* Make a copy, if the first transmission SKB clone we made
 	 * is still in somebody's hands, else make a clone.
 	 */
-- 
cgit 


From b1eda2ac3fa6bf23b27c7c70eda6885124c79ed3 Mon Sep 17 00:00:00 2001
From: stephen hemminger <stephen@networkplumber.org>
Date: Wed, 16 Oct 2013 17:29:34 -0700
Subject: em_ipset: use dev_net() accessor

Randy found that if network namespace not enabled then
nd_net does not exist and would cause compilation failure.

This is handled correctly by using the dev_net() macro.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sched/em_ipset.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/sched/em_ipset.c b/net/sched/em_ipset.c
index 1ac41d3de5c3..527aeb7a3ff0 100644
--- a/net/sched/em_ipset.c
+++ b/net/sched/em_ipset.c
@@ -24,7 +24,7 @@ static int em_ipset_change(struct tcf_proto *tp, void *data, int data_len,
 {
 	struct xt_set_info *set = data;
 	ip_set_id_t index;
-	struct net *net = qdisc_dev(tp->q)->nd_net;
+	struct net *net = dev_net(qdisc_dev(tp->q));
 
 	if (data_len != sizeof(*set))
 		return -EINVAL;
@@ -46,7 +46,7 @@ static void em_ipset_destroy(struct tcf_proto *p, struct tcf_ematch *em)
 {
 	const struct xt_set_info *set = (const void *) em->data;
 	if (set) {
-		ip_set_nfnl_put(qdisc_dev(p->q)->nd_net, set->index);
+		ip_set_nfnl_put(dev_net(qdisc_dev(p->q)), set->index);
 		kfree((void *) em->data);
 	}
 }
-- 
cgit 


From 444996027e80f96c9948d8d5b8f067a8aff9861d Mon Sep 17 00:00:00 2001
From: "Peter A. Felvegi" <petschy@gmail.com>
Date: Fri, 18 Oct 2013 20:07:44 +0200
Subject: udf: fix for pathetic mount times in case of invalid file system

The UDF driver was not strict enough about checking the IDs in the
VSDs when mounting, which resulted in reading through all the sectors
of the block device in some unfortunate cases. Eg, trying to mount my
uninitialized 200G SSD partition (all 0xFF bytes) took ~350 minutes to
fail, because the code expected some of the valid IDs or a zero byte.
During this, the mount couldn't be killed, sync from the cmdline
blocked, and the machine froze into the shutdown. Valid filesystems
(extX, btrfs, ntfs) were rejected by the mere accident of having a
zero byte at just the right place in some of their sectors, close
enough to the beginning not to generate excess I/O. The fix adds a
hard limit on the VSD sector offset, adds the two missing VSD IDs, and
stops scanning when encountering an invalid ID. Also replaced the
magic number 32768 with a more meaningful #define, and supressed the
bogus message about failing to read the first sector if no UDF fs was
detected.

Signed-off-by: Peter A. Felvegi <petschy@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/udf/super.c | 45 ++++++++++++++++++++++++++++++++++++---------
 1 file changed, 36 insertions(+), 9 deletions(-)

diff --git a/fs/udf/super.c b/fs/udf/super.c
index 91219385691d..3306b9f69bed 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -76,6 +76,9 @@
 
 #define UDF_DEFAULT_BLOCKSIZE 2048
 
+#define VSD_FIRST_SECTOR_OFFSET		32768
+#define VSD_MAX_SECTOR_OFFSET		0x800000
+
 enum { UDF_MAX_LINKS = 0xffff };
 
 /* These are the "meat" - everything else is stuffing */
@@ -685,7 +688,7 @@ out_unlock:
 static loff_t udf_check_vsd(struct super_block *sb)
 {
 	struct volStructDesc *vsd = NULL;
-	loff_t sector = 32768;
+	loff_t sector = VSD_FIRST_SECTOR_OFFSET;
 	int sectorsize;
 	struct buffer_head *bh = NULL;
 	int nsr02 = 0;
@@ -703,8 +706,18 @@ static loff_t udf_check_vsd(struct super_block *sb)
 	udf_debug("Starting at sector %u (%ld byte sectors)\n",
 		  (unsigned int)(sector >> sb->s_blocksize_bits),
 		  sb->s_blocksize);
-	/* Process the sequence (if applicable) */
-	for (; !nsr02 && !nsr03; sector += sectorsize) {
+	/* Process the sequence (if applicable). The hard limit on the sector
+	 * offset is arbitrary, hopefully large enough so that all valid UDF
+	 * filesystems will be recognised. There is no mention of an upper
+	 * bound to the size of the volume recognition area in the standard.
+	 *  The limit will prevent the code to read all the sectors of a
+	 * specially crafted image (like a bluray disc full of CD001 sectors),
+	 * potentially causing minutes or even hours of uninterruptible I/O
+	 * activity. This actually happened with uninitialised SSD partitions
+	 * (all 0xFF) before the check for the limit and all valid IDs were
+	 * added */
+	for (; !nsr02 && !nsr03 && sector < VSD_MAX_SECTOR_OFFSET;
+	     sector += sectorsize) {
 		/* Read a block */
 		bh = udf_tread(sb, sector >> sb->s_blocksize_bits);
 		if (!bh)
@@ -714,10 +727,7 @@ static loff_t udf_check_vsd(struct super_block *sb)
 		vsd = (struct volStructDesc *)(bh->b_data +
 					      (sector & (sb->s_blocksize - 1)));
 
-		if (vsd->stdIdent[0] == 0) {
-			brelse(bh);
-			break;
-		} else if (!strncmp(vsd->stdIdent, VSD_STD_ID_CD001,
+		if (!strncmp(vsd->stdIdent, VSD_STD_ID_CD001,
 				    VSD_STD_ID_LEN)) {
 			switch (vsd->structType) {
 			case 0:
@@ -753,6 +763,17 @@ static loff_t udf_check_vsd(struct super_block *sb)
 		else if (!strncmp(vsd->stdIdent, VSD_STD_ID_NSR03,
 				    VSD_STD_ID_LEN))
 			nsr03 = sector;
+		else if (!strncmp(vsd->stdIdent, VSD_STD_ID_BOOT2,
+				    VSD_STD_ID_LEN))
+			; /* nothing */
+		else if (!strncmp(vsd->stdIdent, VSD_STD_ID_CDW02,
+				    VSD_STD_ID_LEN))
+			; /* nothing */
+		else {
+			/* invalid id : end of volume recognition area */
+			brelse(bh);
+			break;
+		}
 		brelse(bh);
 	}
 
@@ -760,7 +781,8 @@ static loff_t udf_check_vsd(struct super_block *sb)
 		return nsr03;
 	else if (nsr02)
 		return nsr02;
-	else if (sector - (sbi->s_session << sb->s_blocksize_bits) == 32768)
+	else if (!bh && sector - (sbi->s_session << sb->s_blocksize_bits) ==
+			VSD_FIRST_SECTOR_OFFSET)
 		return -1;
 	else
 		return 0;
@@ -1270,6 +1292,9 @@ static int udf_load_partdesc(struct super_block *sb, sector_t block)
 	 * PHYSICAL partitions are already set up
 	 */
 	type1_idx = i;
+#ifdef UDFFS_DEBUG
+	map = NULL; /* supress 'maybe used uninitialized' warning */
+#endif
 	for (i = 0; i < sbi->s_partitions; i++) {
 		map = &sbi->s_partmaps[i];
 
@@ -1891,7 +1916,9 @@ static int udf_load_vrs(struct super_block *sb, struct udf_options *uopt,
 			return 0;
 		}
 		if (nsr_off == -1)
-			udf_debug("Failed to read byte 32768. Assuming open disc. Skipping validity check\n");
+			udf_debug("Failed to read sector at offset %d. "
+				  "Assuming open disc. Skipping validity "
+				  "check\n", VSD_FIRST_SECTOR_OFFSET);
 		if (!sbi->s_last_block)
 			sbi->s_last_block = udf_get_last_block(sb);
 	} else {
-- 
cgit 


From 3bd1ae57f7bb3bf79487f7cb88f3ee34c7d58a52 Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Thu, 12 Sep 2013 16:51:19 -0600
Subject: ARM: tegra: add fuses as device randomness

Various fuses on Tegra include information that's unique to an individual
chip, or a subset of chips. Call add_device_randomness() with this data
to perturb the initial state of the random pool.

Suggested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-tegra/fuse.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/arch/arm/mach-tegra/fuse.c b/arch/arm/mach-tegra/fuse.c
index f3b5d0d7b620..d4639c506622 100644
--- a/arch/arm/mach-tegra/fuse.c
+++ b/arch/arm/mach-tegra/fuse.c
@@ -21,14 +21,26 @@
 #include <linux/kernel.h>
 #include <linux/io.h>
 #include <linux/export.h>
+#include <linux/random.h>
 #include <linux/tegra-soc.h>
 
 #include "fuse.h"
 #include "iomap.h"
 #include "apbio.h"
 
+/* Tegra20 only */
 #define FUSE_UID_LOW		0x108
 #define FUSE_UID_HIGH		0x10c
+
+/* Tegra30 and later */
+#define FUSE_VENDOR_CODE	0x200
+#define FUSE_FAB_CODE		0x204
+#define FUSE_LOT_CODE_0		0x208
+#define FUSE_LOT_CODE_1		0x20c
+#define FUSE_WAFER_ID		0x210
+#define FUSE_X_COORDINATE	0x214
+#define FUSE_Y_COORDINATE	0x218
+
 #define FUSE_SKU_INFO		0x110
 
 #define TEGRA20_FUSE_SPARE_BIT		0x200
@@ -112,21 +124,51 @@ u32 tegra_read_chipid(void)
 	return readl_relaxed(IO_ADDRESS(TEGRA_APB_MISC_BASE) + 0x804);
 }
 
+static void __init tegra20_fuse_init_randomness(void)
+{
+	u32 randomness[2];
+
+	randomness[0] = tegra_fuse_readl(FUSE_UID_LOW);
+	randomness[1] = tegra_fuse_readl(FUSE_UID_HIGH);
+
+	add_device_randomness(randomness, sizeof(randomness));
+}
+
+/* Applies to Tegra30 or later */
+static void __init tegra30_fuse_init_randomness(void)
+{
+	u32 randomness[7];
+
+	randomness[0] = tegra_fuse_readl(FUSE_VENDOR_CODE);
+	randomness[1] = tegra_fuse_readl(FUSE_FAB_CODE);
+	randomness[2] = tegra_fuse_readl(FUSE_LOT_CODE_0);
+	randomness[3] = tegra_fuse_readl(FUSE_LOT_CODE_1);
+	randomness[4] = tegra_fuse_readl(FUSE_WAFER_ID);
+	randomness[5] = tegra_fuse_readl(FUSE_X_COORDINATE);
+	randomness[6] = tegra_fuse_readl(FUSE_Y_COORDINATE);
+
+	add_device_randomness(randomness, sizeof(randomness));
+}
+
 void __init tegra_init_fuse(void)
 {
 	u32 id;
+	u32 randomness[5];
 
 	u32 reg = readl(IO_ADDRESS(TEGRA_CLK_RESET_BASE + 0x48));
 	reg |= 1 << 28;
 	writel(reg, IO_ADDRESS(TEGRA_CLK_RESET_BASE + 0x48));
 
 	reg = tegra_fuse_readl(FUSE_SKU_INFO);
+	randomness[0] = reg;
 	tegra_sku_id = reg & 0xFF;
 
 	reg = tegra_apb_readl(TEGRA_APB_MISC_BASE + STRAP_OPT);
+	randomness[1] = reg;
 	tegra_bct_strapping = (reg & RAM_ID_MASK) >> RAM_CODE_SHIFT;
 
 	id = tegra_read_chipid();
+	randomness[2] = id;
 	tegra_chip_id = (id >> 8) & 0xff;
 
 	switch (tegra_chip_id) {
@@ -149,6 +191,18 @@ void __init tegra_init_fuse(void)
 
 	tegra_revision = tegra_get_revision(id);
 	tegra_init_speedo_data();
+	randomness[3] = (tegra_cpu_process_id << 16) | tegra_core_process_id;
+	randomness[4] = (tegra_cpu_speedo_id << 16) | tegra_soc_speedo_id;
+
+	add_device_randomness(randomness, sizeof(randomness));
+	switch (tegra_chip_id) {
+	case TEGRA20:
+		tegra20_fuse_init_randomness();
+	case TEGRA30:
+	case TEGRA114:
+	default:
+		tegra30_fuse_init_randomness();
+	}
 
 	pr_info("Tegra Revision: %s SKU: %d CPU Process: %d Core Process: %d\n",
 		tegra_revision_name[tegra_revision],
-- 
cgit 


From 7394447505c466d1b5cc664dcec5b2b68aa59142 Mon Sep 17 00:00:00 2001
From: Joseph Lo <josephl@nvidia.com>
Date: Tue, 8 Oct 2013 12:50:03 +0800
Subject: ARM: tegra: add Tegra124 SoC support

Add Tegra124 SoC support that base on CortexA15MP Core. And enable the
SMP function that can re-use the same procedure with Tegra114.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/mach-tegra/Kconfig   | 8 ++++++++
 arch/arm/mach-tegra/fuse.h    | 1 +
 arch/arm/mach-tegra/platsmp.c | 2 ++
 arch/arm/mach-tegra/tegra.c   | 1 +
 4 files changed, 12 insertions(+)

diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index f2e026af1ae4..a5e6556f87bc 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -61,6 +61,14 @@ config ARCH_TEGRA_114_SOC
 	  Support for NVIDIA Tegra T114 processor family, based on the
 	  ARM CortexA15MP CPU
 
+config ARCH_TEGRA_124_SOC
+	bool "Enable support for Tegra124 family"
+	select ARM_L1_CACHE_SHIFT_6
+	select HAVE_ARM_ARCH_TIMER
+	help
+	  Support for NVIDIA Tegra T124 processor family, based on the
+	  ARM CortexA15MP CPU
+
 config TEGRA_AHB
 	bool "Enable AHB driver for NVIDIA Tegra SoCs"
 	default y
diff --git a/arch/arm/mach-tegra/fuse.h b/arch/arm/mach-tegra/fuse.h
index def79683bef6..c01d04785d67 100644
--- a/arch/arm/mach-tegra/fuse.h
+++ b/arch/arm/mach-tegra/fuse.h
@@ -29,6 +29,7 @@
 #define TEGRA20		0x20
 #define TEGRA30		0x30
 #define TEGRA114	0x35
+#define TEGRA124	0x40
 
 #ifndef __ASSEMBLY__
 enum tegra_revision {
diff --git a/arch/arm/mach-tegra/platsmp.c b/arch/arm/mach-tegra/platsmp.c
index 2d0203627fbb..eb72ae709124 100644
--- a/arch/arm/mach-tegra/platsmp.c
+++ b/arch/arm/mach-tegra/platsmp.c
@@ -176,6 +176,8 @@ static int tegra_boot_secondary(unsigned int cpu,
 		return tegra30_boot_secondary(cpu, idle);
 	if (IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC) && tegra_chip_id == TEGRA114)
 		return tegra114_boot_secondary(cpu, idle);
+	if (IS_ENABLED(CONFIG_ARCH_TEGRA_124_SOC) && tegra_chip_id == TEGRA124)
+		return tegra114_boot_secondary(cpu, idle);
 
 	return -EINVAL;
 }
diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c
index 40b031c42299..80b801a94677 100644
--- a/arch/arm/mach-tegra/tegra.c
+++ b/arch/arm/mach-tegra/tegra.c
@@ -181,6 +181,7 @@ static void __init tegra_dt_init_late(void)
 }
 
 static const char * const tegra_dt_board_compat[] = {
+	"nvidia,tegra124",
 	"nvidia,tegra114",
 	"nvidia,tegra30",
 	"nvidia,tegra20",
-- 
cgit 


From 6ca91f9d640dae54307a8df19613e578e9c887c6 Mon Sep 17 00:00:00 2001
From: Joseph Lo <josephl@nvidia.com>
Date: Tue, 8 Oct 2013 12:50:04 +0800
Subject: ARM: tegra: add PMC compatible value for Tegra124

The PMC HW is not identical to the existing Tegra SoC. Hence add to it.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/mach-tegra/pmc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-tegra/pmc.c b/arch/arm/mach-tegra/pmc.c
index 93a4dbcde27e..3744af99e0a1 100644
--- a/arch/arm/mach-tegra/pmc.c
+++ b/arch/arm/mach-tegra/pmc.c
@@ -288,6 +288,7 @@ void tegra_pmc_suspend_init(void)
 #endif
 
 static const struct of_device_id matches[] __initconst = {
+	{ .compatible = "nvidia,tegra124-pmc" },
 	{ .compatible = "nvidia,tegra114-pmc" },
 	{ .compatible = "nvidia,tegra30-pmc" },
 	{ .compatible = "nvidia,tegra20-pmc" },
-- 
cgit 


From 9997e62682e0fe68566c88f70ed320ded4e16529 Mon Sep 17 00:00:00 2001
From: Joseph Lo <josephl@nvidia.com>
Date: Fri, 11 Oct 2013 17:57:30 +0800
Subject: ARM: tegra: CPU hotplug support for Tegra124

The procedure of CPU hotplug for Tegra124 is same with Tegra114. We
re-use the same function with it.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/mach-tegra/Makefile  | 1 +
 arch/arm/mach-tegra/hotplug.c | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index 97eb48e977e5..04ca2b3f34c1 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -35,5 +35,6 @@ obj-$(CONFIG_ARCH_TEGRA_114_SOC)	+= pm-tegra30.o
 ifeq ($(CONFIG_CPU_IDLE),y)
 obj-$(CONFIG_ARCH_TEGRA_114_SOC)	+= cpuidle-tegra114.o
 endif
+obj-$(CONFIG_ARCH_TEGRA_124_SOC)	+= sleep-tegra30.o
 
 obj-$(CONFIG_ARCH_TEGRA_2x_SOC)		+= board-paz00.o
diff --git a/arch/arm/mach-tegra/hotplug.c b/arch/arm/mach-tegra/hotplug.c
index 04de2e860923..ff26af26bd0c 100644
--- a/arch/arm/mach-tegra/hotplug.c
+++ b/arch/arm/mach-tegra/hotplug.c
@@ -57,4 +57,6 @@ void __init tegra_hotplug_init(void)
 		tegra_hotplug_shutdown = tegra30_hotplug_shutdown;
 	if (IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC) && tegra_chip_id == TEGRA114)
 		tegra_hotplug_shutdown = tegra30_hotplug_shutdown;
+	if (IS_ENABLED(CONFIG_ARCH_TEGRA_124_SOC) && tegra_chip_id == TEGRA124)
+		tegra_hotplug_shutdown = tegra30_hotplug_shutdown;
 }
-- 
cgit 


From d127e9c5c5bc1ee22a7b1fe804397cddd132f756 Mon Sep 17 00:00:00 2001
From: Joseph Lo <josephl@nvidia.com>
Date: Fri, 11 Oct 2013 17:57:31 +0800
Subject: ARM: tegra: make tegra_resume can work with current and later chips

Because the CPU0 was the first up and the last down core when cluster
power up/down or platform suspend. So only CPU0 needs the rest of the
functions to reset flow controller and re-enable SCU and L2. We also
move the L2 init function for Cortex-A15 to there. The secondery CPU
can just call cpu_resume.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/mach-tegra/reset-handler.S | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/arch/arm/mach-tegra/reset-handler.S b/arch/arm/mach-tegra/reset-handler.S
index f527b2c2dea7..8c1ba4fea384 100644
--- a/arch/arm/mach-tegra/reset-handler.S
+++ b/arch/arm/mach-tegra/reset-handler.S
@@ -45,17 +45,11 @@
 ENTRY(tegra_resume)
 	check_cpu_part_num 0xc09, r8, r9
 	bleq	v7_invalidate_l1
-	blne	tegra_init_l2_for_a15
 
 	cpu_id	r0
-	tegra_get_soc_id TEGRA_APB_MISC_BASE, r6
-	cmp	r6, #TEGRA114
-	beq	no_cpu0_chk
-
 	cmp	r0, #0				@ CPU0?
  THUMB(	it	ne )
 	bne	cpu_resume			@ no
-no_cpu0_chk:
 
 	/* Are we on Tegra20? */
 	cmp	r6, #TEGRA20
@@ -75,7 +69,7 @@ no_cpu0_chk:
 
 	mov32	r9, 0xc09
 	cmp	r8, r9
-	bne	not_ca9
+	bne	end_ca9_scu_l2_resume
 #ifdef CONFIG_HAVE_ARM_SCU
 	/* enable SCU */
 	mov32	r0, TEGRA_ARM_PERIF_BASE
@@ -86,7 +80,10 @@ no_cpu0_chk:
 
 	/* L2 cache resume & re-enable */
 	l2_cache_resume r0, r1, r2, l2x0_saved_regs_addr
-not_ca9:
+end_ca9_scu_l2_resume:
+	mov32	r9, 0xc0f
+	cmp	r8, r9
+	bleq	tegra_init_l2_for_a15
 
 	b	cpu_resume
 ENDPROC(tegra_resume)
-- 
cgit 


From 24036fdc76f94da594bf7759be46a185726072ea Mon Sep 17 00:00:00 2001
From: Joseph Lo <josephl@nvidia.com>
Date: Fri, 11 Oct 2013 17:57:32 +0800
Subject: ARM: tegra: enable CPU idle for Tegra124

The CPUIdle function of Tegra124 is identical to Tegra114, so we share
the same driver with Tegra114.

Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/mach-tegra/Makefile  | 3 +++
 arch/arm/mach-tegra/cpuidle.c | 4 +++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index 04ca2b3f34c1..de3748ed0b42 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -36,5 +36,8 @@ ifeq ($(CONFIG_CPU_IDLE),y)
 obj-$(CONFIG_ARCH_TEGRA_114_SOC)	+= cpuidle-tegra114.o
 endif
 obj-$(CONFIG_ARCH_TEGRA_124_SOC)	+= sleep-tegra30.o
+ifeq ($(CONFIG_CPU_IDLE),y)
+obj-$(CONFIG_ARCH_TEGRA_124_SOC)	+= cpuidle-tegra114.o
+endif
 
 obj-$(CONFIG_ARCH_TEGRA_2x_SOC)		+= board-paz00.o
diff --git a/arch/arm/mach-tegra/cpuidle.c b/arch/arm/mach-tegra/cpuidle.c
index 0961dfcf83a4..7bc5d8d667fe 100644
--- a/arch/arm/mach-tegra/cpuidle.c
+++ b/arch/arm/mach-tegra/cpuidle.c
@@ -39,7 +39,9 @@ void __init tegra_cpuidle_init(void)
 			tegra30_cpuidle_init();
 		break;
 	case TEGRA114:
-		if (IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC))
+	case TEGRA124:
+		if (IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC) ||
+		    IS_ENABLED(CONFIG_ARCH_TEGRA_124_SOC))
 			tegra114_cpuidle_init();
 		break;
 	}
-- 
cgit 


From 92e94fe1cdaf3c6c636dc2c5129f8eabc89dca6c Mon Sep 17 00:00:00 2001
From: Joseph Lo <josephl@nvidia.com>
Date: Fri, 11 Oct 2013 17:58:37 +0800
Subject: ARM: tegra: re-calculate the LP1 data for Tegra30/114

This patch re-calculates the LP1 data of tegra30/114_sdram_pad_address
to base on its label not rely on others. This can make easier to
maintain if some other Tegra chips keep re-using these codes in the
future. And change the name of tegra30_sdram_pad_save to
tegra_sdram_pad_save to make it more common to other chips.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/mach-tegra/sleep-tegra30.S | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/arch/arm/mach-tegra/sleep-tegra30.S b/arch/arm/mach-tegra/sleep-tegra30.S
index c6fc15cb25df..7c529a136ee5 100644
--- a/arch/arm/mach-tegra/sleep-tegra30.S
+++ b/arch/arm/mach-tegra/sleep-tegra30.S
@@ -383,7 +383,7 @@ _pll_m_c_x_done:
 	add	r1, r1, #LOCK_DELAY
 	wait_until r1, r7, r3
 
-	adr	r5, tegra30_sdram_pad_save
+	adr	r5, tegra_sdram_pad_save
 
 	ldr	r4, [r5, #0x18]		@ restore CLK_SOURCE_MSELECT
 	str	r4, [r0, #CLK_RESET_CLK_SOURCE_MSELECT]
@@ -538,6 +538,7 @@ tegra30_sdram_pad_address:
 	.word	TEGRA_PMC_BASE + PMC_IO_DPD_STATUS			@0x14
 	.word	TEGRA_CLK_RESET_BASE + CLK_RESET_CLK_SOURCE_MSELECT	@0x18
 	.word	TEGRA_CLK_RESET_BASE + CLK_RESET_SCLK_BURST		@0x1c
+tegra30_sdram_pad_address_end:
 
 tegra114_sdram_pad_address:
 	.word	TEGRA_EMC0_BASE + EMC_CFG				@0x0
@@ -553,16 +554,17 @@ tegra114_sdram_pad_address:
 	.word	TEGRA_EMC1_BASE + EMC_AUTO_CAL_INTERVAL			@0x28
 	.word	TEGRA_EMC1_BASE + EMC_XM2VTTGENPADCTRL			@0x2c
 	.word	TEGRA_EMC1_BASE + EMC_XM2VTTGENPADCTRL2			@0x30
+tegra114_sdram_pad_adress_end:
 
 tegra30_sdram_pad_size:
-	.word	tegra114_sdram_pad_address - tegra30_sdram_pad_address
+	.word	tegra30_sdram_pad_address_end - tegra30_sdram_pad_address
 
 tegra114_sdram_pad_size:
-	.word	tegra30_sdram_pad_size - tegra114_sdram_pad_address
+	.word	tegra114_sdram_pad_adress_end - tegra114_sdram_pad_address
 
-	.type	tegra30_sdram_pad_save, %object
-tegra30_sdram_pad_save:
-	.rept (tegra30_sdram_pad_size - tegra114_sdram_pad_address) / 4
+	.type	tegra_sdram_pad_save, %object
+tegra_sdram_pad_save:
+	.rept (tegra114_sdram_pad_adress_end - tegra114_sdram_pad_address) / 4
 	.long	0
 	.endr
 
@@ -693,7 +695,7 @@ halted:
  */
 tegra30_sdram_self_refresh:
 
-	adr	r8, tegra30_sdram_pad_save
+	adr	r8, tegra_sdram_pad_save
 	tegra_get_soc_id TEGRA_APB_MISC_BASE, r10
 	cmp	r10, #TEGRA30
 	adreq	r2, tegra30_sdram_pad_address
-- 
cgit 


From f0c4ac1329452e5d31a03b4bb711c330065c0369 Mon Sep 17 00:00:00 2001
From: Joseph Lo <josephl@nvidia.com>
Date: Fri, 11 Oct 2013 17:58:38 +0800
Subject: ARM: tegra: add LP1 support code for Tegra124

The LP1 suspend procedure is the same with Tegra30 and Tegra114. Just
need to update the difference of the register address, then we can
continue to share the code.

Signed-off-by: Joseph Lo <josephl@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/mach-tegra/Makefile        |  1 +
 arch/arm/mach-tegra/flowctrl.c      |  2 ++
 arch/arm/mach-tegra/iomap.h         |  3 +++
 arch/arm/mach-tegra/pm.c            | 12 +++++++++---
 arch/arm/mach-tegra/sleep-tegra30.S | 33 ++++++++++++++++++++++++++++-----
 5 files changed, 43 insertions(+), 8 deletions(-)

diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index de3748ed0b42..019bb1758662 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -36,6 +36,7 @@ ifeq ($(CONFIG_CPU_IDLE),y)
 obj-$(CONFIG_ARCH_TEGRA_114_SOC)	+= cpuidle-tegra114.o
 endif
 obj-$(CONFIG_ARCH_TEGRA_124_SOC)	+= sleep-tegra30.o
+obj-$(CONFIG_ARCH_TEGRA_124_SOC)	+= pm-tegra30.o
 ifeq ($(CONFIG_CPU_IDLE),y)
 obj-$(CONFIG_ARCH_TEGRA_124_SOC)	+= cpuidle-tegra114.o
 endif
diff --git a/arch/arm/mach-tegra/flowctrl.c b/arch/arm/mach-tegra/flowctrl.c
index 5348543382bf..ce8ab8abf061 100644
--- a/arch/arm/mach-tegra/flowctrl.c
+++ b/arch/arm/mach-tegra/flowctrl.c
@@ -87,6 +87,7 @@ void flowctrl_cpu_suspend_enter(unsigned int cpuid)
 		break;
 	case TEGRA30:
 	case TEGRA114:
+	case TEGRA124:
 		/* clear wfe bitmap */
 		reg &= ~TEGRA30_FLOW_CTRL_CSR_WFE_BITMAP;
 		/* clear wfi bitmap */
@@ -125,6 +126,7 @@ void flowctrl_cpu_suspend_exit(unsigned int cpuid)
 		break;
 	case TEGRA30:
 	case TEGRA114:
+	case TEGRA124:
 		/* clear wfe bitmap */
 		reg &= ~TEGRA30_FLOW_CTRL_CSR_WFE_BITMAP;
 		/* clear wfi bitmap */
diff --git a/arch/arm/mach-tegra/iomap.h b/arch/arm/mach-tegra/iomap.h
index cbee57fc4fd8..26b1c2ad0ceb 100644
--- a/arch/arm/mach-tegra/iomap.h
+++ b/arch/arm/mach-tegra/iomap.h
@@ -105,6 +105,9 @@
 #define TEGRA_EMC1_BASE			0x7001A800
 #define TEGRA_EMC1_SIZE			SZ_2K
 
+#define TEGRA124_EMC_BASE		0x7001B000
+#define TEGRA124_EMC_SIZE		SZ_2K
+
 #define TEGRA_CSITE_BASE		0x70040000
 #define TEGRA_CSITE_SIZE		SZ_256K
 
diff --git a/arch/arm/mach-tegra/pm.c b/arch/arm/mach-tegra/pm.c
index 36ed88af1cc1..4ae0286b468d 100644
--- a/arch/arm/mach-tegra/pm.c
+++ b/arch/arm/mach-tegra/pm.c
@@ -59,8 +59,10 @@ static void tegra_tear_down_cpu_init(void)
 		break;
 	case TEGRA30:
 	case TEGRA114:
+	case TEGRA124:
 		if (IS_ENABLED(CONFIG_ARCH_TEGRA_3x_SOC) ||
-		    IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC))
+		    IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC) ||
+		    IS_ENABLED(CONFIG_ARCH_TEGRA_124_SOC))
 			tegra_tear_down_cpu = tegra30_tear_down_cpu;
 		break;
 	}
@@ -216,8 +218,10 @@ static bool tegra_lp1_iram_hook(void)
 		break;
 	case TEGRA30:
 	case TEGRA114:
+	case TEGRA124:
 		if (IS_ENABLED(CONFIG_ARCH_TEGRA_3x_SOC) ||
-		    IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC))
+		    IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC) ||
+		    IS_ENABLED(CONFIG_ARCH_TEGRA_124_SOC))
 			tegra30_lp1_iram_hook();
 		break;
 	default:
@@ -244,8 +248,10 @@ static bool tegra_sleep_core_init(void)
 		break;
 	case TEGRA30:
 	case TEGRA114:
+	case TEGRA124:
 		if (IS_ENABLED(CONFIG_ARCH_TEGRA_3x_SOC) ||
-		    IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC))
+		    IS_ENABLED(CONFIG_ARCH_TEGRA_114_SOC) ||
+		    IS_ENABLED(CONFIG_ARCH_TEGRA_124_SOC))
 			tegra30_sleep_core_init();
 		break;
 	default:
diff --git a/arch/arm/mach-tegra/sleep-tegra30.S b/arch/arm/mach-tegra/sleep-tegra30.S
index 7c529a136ee5..b16d4a57fa59 100644
--- a/arch/arm/mach-tegra/sleep-tegra30.S
+++ b/arch/arm/mach-tegra/sleep-tegra30.S
@@ -408,8 +408,12 @@ _pll_m_c_x_done:
 	cmp	r10, #TEGRA30
 	movweq	r0, #:lower16:TEGRA_EMC_BASE	@ r0 reserved for emc base
 	movteq	r0, #:upper16:TEGRA_EMC_BASE
-	movwne	r0, #:lower16:TEGRA_EMC0_BASE
-	movtne	r0, #:upper16:TEGRA_EMC0_BASE
+	cmp	r10, #TEGRA114
+	movweq	r0, #:lower16:TEGRA_EMC0_BASE
+	movteq	r0, #:upper16:TEGRA_EMC0_BASE
+	cmp	r10, #TEGRA124
+	movweq	r0, #:lower16:TEGRA124_EMC_BASE
+	movteq	r0, #:upper16:TEGRA124_EMC_BASE
 
 exit_self_refresh:
 	ldr	r1, [r5, #0xC]		@ restore EMC_XM2VTTGENPADCTRL
@@ -556,6 +560,17 @@ tegra114_sdram_pad_address:
 	.word	TEGRA_EMC1_BASE + EMC_XM2VTTGENPADCTRL2			@0x30
 tegra114_sdram_pad_adress_end:
 
+tegra124_sdram_pad_address:
+	.word	TEGRA124_EMC_BASE + EMC_CFG				@0x0
+	.word	TEGRA124_EMC_BASE + EMC_ZCAL_INTERVAL			@0x4
+	.word	TEGRA124_EMC_BASE + EMC_AUTO_CAL_INTERVAL		@0x8
+	.word	TEGRA124_EMC_BASE + EMC_XM2VTTGENPADCTRL		@0xc
+	.word	TEGRA124_EMC_BASE + EMC_XM2VTTGENPADCTRL2		@0x10
+	.word	TEGRA_PMC_BASE + PMC_IO_DPD_STATUS			@0x14
+	.word	TEGRA_CLK_RESET_BASE + CLK_RESET_CLK_SOURCE_MSELECT	@0x18
+	.word	TEGRA_CLK_RESET_BASE + CLK_RESET_SCLK_BURST		@0x1c
+tegra124_sdram_pad_address_end:
+
 tegra30_sdram_pad_size:
 	.word	tegra30_sdram_pad_address_end - tegra30_sdram_pad_address
 
@@ -700,8 +715,13 @@ tegra30_sdram_self_refresh:
 	cmp	r10, #TEGRA30
 	adreq	r2, tegra30_sdram_pad_address
 	ldreq	r3, tegra30_sdram_pad_size
-	adrne	r2, tegra114_sdram_pad_address
-	ldrne	r3, tegra114_sdram_pad_size
+	cmp	r10, #TEGRA114
+	adreq	r2, tegra114_sdram_pad_address
+	ldreq	r3, tegra114_sdram_pad_size
+	cmp	r10, #TEGRA124
+	adreq	r2, tegra124_sdram_pad_address
+	ldreq	r3, tegra30_sdram_pad_size
+
 	mov	r9, #0
 
 padsave:
@@ -719,7 +739,10 @@ padsave_done:
 
 	cmp	r10, #TEGRA30
 	ldreq	r0, =TEGRA_EMC_BASE	@ r0 reserved for emc base addr
-	ldrne	r0, =TEGRA_EMC0_BASE
+	cmp	r10, #TEGRA114
+	ldreq	r0, =TEGRA_EMC0_BASE
+	cmp	r10, #TEGRA124
+	ldreq	r0, =TEGRA124_EMC_BASE
 
 enter_self_refresh:
 	cmp	r10, #TEGRA30
-- 
cgit 


From c1e96da28cf56c9f7be5e54d92c31ef3f70799fa Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Wed, 16 Oct 2013 19:19:00 +0200
Subject: ARM: tegra: Remove duplicate powergate defines

Instead of duplicating powergate defines, reuse the ones from the
include/linux/tegra-powergate.h header file.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/mach-tegra/pmc.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/arch/arm/mach-tegra/pmc.c b/arch/arm/mach-tegra/pmc.c
index 3744af99e0a1..fb7920201ab4 100644
--- a/arch/arm/mach-tegra/pmc.c
+++ b/arch/arm/mach-tegra/pmc.c
@@ -20,6 +20,7 @@
 #include <linux/io.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
+#include <linux/tegra-powergate.h>
 
 #include "flowctrl.h"
 #include "fuse.h"
@@ -43,12 +44,6 @@
 #define PMC_CPUPWRGOOD_TIMER	0xc8
 #define PMC_CPUPWROFF_TIMER	0xcc
 
-#define TEGRA_POWERGATE_PCIE	3
-#define TEGRA_POWERGATE_VDEC	4
-#define TEGRA_POWERGATE_CPU1	9
-#define TEGRA_POWERGATE_CPU2	10
-#define TEGRA_POWERGATE_CPU3	11
-
 static u8 tegra_cpu_domains[] = {
 	0xFF,			/* not available for CPU0 */
 	TEGRA_POWERGATE_CPU1,
-- 
cgit 


From f0ea2e0bb8f01fc36e32402a479b16ad032da081 Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Wed, 16 Oct 2013 19:19:01 +0200
Subject: ARM: tegra: Constify list of CPU domains

There's no need to modify these at runtime, it is static data and never
needs to change.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/mach-tegra/powergate.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-tegra/powergate.c b/arch/arm/mach-tegra/powergate.c
index f076f0f80fcd..bd10822f8b66 100644
--- a/arch/arm/mach-tegra/powergate.c
+++ b/arch/arm/mach-tegra/powergate.c
@@ -42,8 +42,9 @@
 
 static int tegra_num_powerdomains;
 static int tegra_num_cpu_domains;
-static u8 *tegra_cpu_domains;
-static u8 tegra30_cpu_domains[] = {
+static const u8 *tegra_cpu_domains;
+
+static const u8 tegra30_cpu_domains[] = {
 	TEGRA_POWERGATE_CPU0,
 	TEGRA_POWERGATE_CPU1,
 	TEGRA_POWERGATE_CPU2,
-- 
cgit 


From bd6a9ddcb9f2cb19dae0509341a4cbaf40dc66f0 Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Wed, 16 Oct 2013 19:19:02 +0200
Subject: ARM: tegra: Add Tegra114 powergate support

Extend the list of power gates found on Tegra114. Note that there are
now holes in the list, so perhaps a simple array is no longer the best
data structure to represent it.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
---
 arch/arm/mach-tegra/powergate.c | 43 ++++++++++++++++++++++++++++++++++++++++-
 include/linux/tegra-powergate.h |  9 ++++++++-
 2 files changed, 50 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-tegra/powergate.c b/arch/arm/mach-tegra/powergate.c
index bd10822f8b66..85d28e756bb7 100644
--- a/arch/arm/mach-tegra/powergate.c
+++ b/arch/arm/mach-tegra/powergate.c
@@ -45,6 +45,13 @@ static int tegra_num_cpu_domains;
 static const u8 *tegra_cpu_domains;
 
 static const u8 tegra30_cpu_domains[] = {
+	TEGRA_POWERGATE_CPU,
+	TEGRA_POWERGATE_CPU1,
+	TEGRA_POWERGATE_CPU2,
+	TEGRA_POWERGATE_CPU3,
+};
+
+static const u8 tegra114_cpu_domains[] = {
 	TEGRA_POWERGATE_CPU0,
 	TEGRA_POWERGATE_CPU1,
 	TEGRA_POWERGATE_CPU2,
@@ -190,6 +197,11 @@ int __init tegra_powergate_init(void)
 		tegra_num_cpu_domains = 4;
 		tegra_cpu_domains = tegra30_cpu_domains;
 		break;
+	case TEGRA114:
+		tegra_num_powerdomains = 23;
+		tegra_num_cpu_domains = 4;
+		tegra_cpu_domains = tegra114_cpu_domains;
+		break;
 	default:
 		/* Unknown Tegra variant. Disable powergating */
 		tegra_num_powerdomains = 0;
@@ -230,6 +242,27 @@ static const char * const powergate_name_t30[] = {
 	[TEGRA_POWERGATE_3D1]	= "3d1",
 };
 
+static const char * const powergate_name_t114[] = {
+	[TEGRA_POWERGATE_CPU]	= "cpu0",
+	[TEGRA_POWERGATE_3D]	= "3d",
+	[TEGRA_POWERGATE_VENC]	= "venc",
+	[TEGRA_POWERGATE_VDEC]	= "vdec",
+	[TEGRA_POWERGATE_MPE]	= "mpe",
+	[TEGRA_POWERGATE_HEG]	= "heg",
+	[TEGRA_POWERGATE_CPU1]	= "cpu1",
+	[TEGRA_POWERGATE_CPU2]	= "cpu2",
+	[TEGRA_POWERGATE_CPU3]	= "cpu3",
+	[TEGRA_POWERGATE_CELP]	= "celp",
+	[TEGRA_POWERGATE_CPU0]	= "cpu0",
+	[TEGRA_POWERGATE_C0NC]	= "c0nc",
+	[TEGRA_POWERGATE_C1NC]	= "c1nc",
+	[TEGRA_POWERGATE_DIS]	= "dis",
+	[TEGRA_POWERGATE_DISB]	= "disb",
+	[TEGRA_POWERGATE_XUSBA]	= "xusba",
+	[TEGRA_POWERGATE_XUSBB]	= "xusbb",
+	[TEGRA_POWERGATE_XUSBC]	= "xusbc",
+};
+
 static int powergate_show(struct seq_file *s, void *data)
 {
 	int i;
@@ -237,9 +270,14 @@ static int powergate_show(struct seq_file *s, void *data)
 	seq_printf(s, " powergate powered\n");
 	seq_printf(s, "------------------\n");
 
-	for (i = 0; i < tegra_num_powerdomains; i++)
+	for (i = 0; i < tegra_num_powerdomains; i++) {
+		if (!powergate_name[i])
+			continue;
+
 		seq_printf(s, " %9s %7s\n", powergate_name[i],
 			tegra_powergate_is_powered(i) ? "yes" : "no");
+	}
+
 	return 0;
 }
 
@@ -266,6 +304,9 @@ int __init tegra_powergate_debugfs_init(void)
 	case TEGRA30:
 		powergate_name = powergate_name_t30;
 		break;
+	case TEGRA114:
+		powergate_name = powergate_name_t114;
+		break;
 	}
 
 	if (powergate_name) {
diff --git a/include/linux/tegra-powergate.h b/include/linux/tegra-powergate.h
index 55c29a8d5015..c98cfa406952 100644
--- a/include/linux/tegra-powergate.h
+++ b/include/linux/tegra-powergate.h
@@ -34,8 +34,15 @@ struct clk;
 #define TEGRA_POWERGATE_CPU3	11
 #define TEGRA_POWERGATE_CELP	12
 #define TEGRA_POWERGATE_3D1	13
+#define TEGRA_POWERGATE_CPU0	14
+#define TEGRA_POWERGATE_C0NC	15
+#define TEGRA_POWERGATE_C1NC	16
+#define TEGRA_POWERGATE_DIS	18
+#define TEGRA_POWERGATE_DISB	19
+#define TEGRA_POWERGATE_XUSBA	20
+#define TEGRA_POWERGATE_XUSBB	21
+#define TEGRA_POWERGATE_XUSBC	22
 
-#define TEGRA_POWERGATE_CPU0	TEGRA_POWERGATE_CPU
 #define TEGRA_POWERGATE_3D0	TEGRA_POWERGATE_3D
 
 int tegra_powergate_is_powered(int id);
-- 
cgit 


From 98d6f4dd84a134d942827584a3c5f67ffd8ec35f Mon Sep 17 00:00:00 2001
From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Date: Mon, 14 Oct 2013 17:33:16 -0400
Subject: alarmtimer: return EINVAL instead of ENOTSUPP if rtcdev doesn't exist

Fedora Ruby maintainer reported latest Ruby doesn't work on Fedora Rawhide
on ARM. (http://bugs.ruby-lang.org/issues/9008)

Because of, commit 1c6b39ad3f (alarmtimers: Return -ENOTSUPP if no
RTC device is present) intruduced to return ENOTSUPP when
clock_get{time,res} can't find a RTC device. However this is incorrect.

First, ENOTSUPP isn't exported to userland (ENOTSUP or EOPNOTSUP are the
closest userland equivlents).

Second, Posix and Linux man pages agree that clock_gettime and
clock_getres should return EINVAL if clk_id argument is invalid.
While the arugment that the clockid is valid, but just not supported
on this hardware could be made, this is just a technicality that
doesn't help userspace applicaitons, and only complicates error
handling.

Thus, this patch changes the code to use EINVAL.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: stable <stable@vger.kernel.org>  #3.0 and up
Reported-by: Vit Ondruch <v.ondruch@tiscali.cz>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
[jstultz: Tweaks to commit message to include full rational]
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 kernel/time/alarmtimer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
index eec50fcef9e4..88c9c65a430d 100644
--- a/kernel/time/alarmtimer.c
+++ b/kernel/time/alarmtimer.c
@@ -490,7 +490,7 @@ static int alarm_clock_getres(const clockid_t which_clock, struct timespec *tp)
 	clockid_t baseid = alarm_bases[clock2alarm(which_clock)].base_clockid;
 
 	if (!alarmtimer_get_rtcdev())
-		return -ENOTSUPP;
+		return -EINVAL;
 
 	return hrtimer_get_res(baseid, tp);
 }
@@ -507,7 +507,7 @@ static int alarm_clock_get(clockid_t which_clock, struct timespec *tp)
 	struct alarm_base *base = &alarm_bases[clock2alarm(which_clock)];
 
 	if (!alarmtimer_get_rtcdev())
-		return -ENOTSUPP;
+		return -EINVAL;
 
 	*tp = ktime_to_timespec(base->gettime());
 	return 0;
-- 
cgit 


From b7bc50e45111e59419474154736f419a555158d9 Mon Sep 17 00:00:00 2001
From: Xie XiuQi <xiexiuqi@huawei.com>
Date: Fri, 18 Oct 2013 09:13:30 +0800
Subject: timekeeping: Fix some trivial typos in comments

Fix some typos in timekeeping comments.

Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
[jstultz: Commit message tweaks]
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 kernel/time/timekeeping.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 947ba25a95a0..3abf53418b67 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -1613,9 +1613,10 @@ void get_xtime_and_monotonic_and_sleep_offset(struct timespec *xtim,
  * ktime_get_update_offsets - hrtimer helper
  * @offs_real:	pointer to storage for monotonic -> realtime offset
  * @offs_boot:	pointer to storage for monotonic -> boottime offset
+ * @offs_tai:	pointer to storage for monotonic -> clock tai offset
  *
  * Returns current monotonic time and updates the offsets
- * Called from hrtimer_interupt() or retrigger_next_event()
+ * Called from hrtimer_interrupt() or retrigger_next_event()
  */
 ktime_t ktime_get_update_offsets(ktime_t *offs_real, ktime_t *offs_boot,
 							ktime_t *offs_tai)
-- 
cgit 


From 8258e268c15a29c09d7c88d91a948bdf729433d8 Mon Sep 17 00:00:00 2001
From: Tiejun Chen <tiejun.chen@windriver.com>
Date: Thu, 20 Jun 2013 18:28:29 +0800
Subject: powerpc/kgdb: use DEFINE_PER_CPU to allocate kgdb's thread_info

Use DEFINE_PER_CPU to allocate thread_info statically instead of kmalloc().
This can avoid introducing more memory check codes.

Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
[scottwood@freescale.com: wrapped long line]
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/kernel/kgdb.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kernel/kgdb.c b/arch/powerpc/kernel/kgdb.c
index c1eef241017a..83e89d310734 100644
--- a/arch/powerpc/kernel/kgdb.c
+++ b/arch/powerpc/kernel/kgdb.c
@@ -151,15 +151,16 @@ static int kgdb_handle_breakpoint(struct pt_regs *regs)
 	return 1;
 }
 
+static DEFINE_PER_CPU(struct thread_info, kgdb_thread_info);
 static int kgdb_singlestep(struct pt_regs *regs)
 {
 	struct thread_info *thread_info, *exception_thread_info;
-	struct thread_info *backup_current_thread_info;
+	struct thread_info *backup_current_thread_info =
+		&__get_cpu_var(kgdb_thread_info);
 
 	if (user_mode(regs))
 		return 0;
 
-	backup_current_thread_info = kmalloc(sizeof(struct thread_info), GFP_KERNEL);
 	/*
 	 * On Book E and perhaps other processors, singlestep is handled on
 	 * the critical exception stack.  This causes current_thread_info()
@@ -185,7 +186,6 @@ static int kgdb_singlestep(struct pt_regs *regs)
 		/* Restore current_thread_info lastly. */
 		memcpy(exception_thread_info, backup_current_thread_info, sizeof *thread_info);
 
-	kfree(backup_current_thread_info);
 	return 1;
 }
 
-- 
cgit 


From 660970fe97f86c0175576b4a942ebd29fb2ec64e Mon Sep 17 00:00:00 2001
From: Bharat Bhushan <r65777@freescale.com>
Date: Thu, 4 Jul 2013 11:45:45 +0530
Subject: powerpc: remove unnecessary line continuations

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Acked-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/kernel/process.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 8649a3d629e1..83079ef159b9 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -327,7 +327,7 @@ static void set_debug_reg_defaults(struct thread_struct *thread)
 	/*
 	 * Force User/Supervisor bits to b11 (user-only MSR[PR]=1)
 	 */
-	thread->dbcr1 = DBCR1_IAC1US | DBCR1_IAC2US |	\
+	thread->dbcr1 = DBCR1_IAC1US | DBCR1_IAC2US |
 			DBCR1_IAC3US | DBCR1_IAC4US;
 	/*
 	 * Force Data Address Compare User/Supervisor bits to be User-only
-- 
cgit 


From 1b9c0fb365cbb1154f4e7997061db972cbf58300 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Fri, 18 Oct 2013 16:20:05 -0700
Subject: pinctrl: single: Fix build when not built on ARM

Looks like we need a little bit of arch specific handling
with the generic IRQ. Fix the issue with an ifdef the
same way as other drivers do.

ARM needs things set to IRQF_VALID, which also then sets
noprobe. Others seem to use just irq_set_noprobe().

Otherwise we can get:

drivers/pinctrl/pinctrl-single.c: In function 'pcs_irqdomain_map':
drivers/pinctrl/pinctrl-single.c:1750:2: error: implicit declaration of function 'set_irq_flags' [-Werror=implicit-function-declaration]
drivers/pinctrl/pinctrl-single.c:1750:21: error: 'IRQF_VALID' undeclared (first use in this function)
drivers/pinctrl/pinctrl-single.c:1750:34: error: 'IRQF_PROBE' undeclared (first use in this function)

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 drivers/pinctrl/pinctrl-single.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index c2aada71c915..0846922b2316 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -1747,7 +1747,12 @@ static int pcs_irqdomain_map(struct irq_domain *d, unsigned int irq,
 	irq_set_chip_data(irq, pcs_soc);
 	irq_set_chip_and_handler(irq, &pcs->chip,
 				 handle_level_irq);
-	set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+
+#ifdef CONFIG_ARM
+	set_irq_flags(irq, IRQF_VALID);
+#else
+	irq_set_noprobe(irq);
+#endif
 
 	return 0;
 }
-- 
cgit 


From 51ae8d4a2b9e4aa9a502061b9c39168e08829b94 Mon Sep 17 00:00:00 2001
From: Bharat Bhushan <r65777@freescale.com>
Date: Thu, 4 Jul 2013 11:45:46 +0530
Subject: powerpc: move debug registers in a structure

This way we can use same data type struct with KVM and
also help in using other debug related function.

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Acked-by: Michael Neuling <mikey@neuling.org>
[scottwood@freescale.com: removed obvious debug_reg comment]
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/include/asm/processor.h |  34 ++++----
 arch/powerpc/include/asm/reg_booke.h |   8 +-
 arch/powerpc/kernel/asm-offsets.c    |   2 +-
 arch/powerpc/kernel/process.c        |  42 +++++-----
 arch/powerpc/kernel/ptrace.c         | 154 +++++++++++++++++------------------
 arch/powerpc/kernel/ptrace32.c       |   2 +-
 arch/powerpc/kernel/signal_32.c      |   6 +-
 arch/powerpc/kernel/traps.c          |  35 ++++----
 8 files changed, 144 insertions(+), 139 deletions(-)

diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h
index c1583070937d..7794b2b04eb2 100644
--- a/arch/powerpc/include/asm/processor.h
+++ b/arch/powerpc/include/asm/processor.h
@@ -167,21 +167,7 @@ struct thread_vr_state {
 	vector128	vscr __attribute__((aligned(16)));
 };
 
-struct thread_struct {
-	unsigned long	ksp;		/* Kernel stack pointer */
-#ifdef CONFIG_PPC64
-	unsigned long	ksp_vsid;
-#endif
-	struct pt_regs	*regs;		/* Pointer to saved register state */
-	mm_segment_t	fs;		/* for get_fs() validation */
-#ifdef CONFIG_BOOKE
-	/* BookE base exception scratch space; align on cacheline */
-	unsigned long	normsave[8] ____cacheline_aligned;
-#endif
-#ifdef CONFIG_PPC32
-	void		*pgdir;		/* root of page-table tree */
-	unsigned long	ksp_limit;	/* if ksp <= ksp_limit stack overflow */
-#endif
+struct debug_reg {
 #ifdef CONFIG_PPC_ADV_DEBUG_REGS
 	/*
 	 * The following help to manage the use of Debug Control Registers
@@ -218,6 +204,24 @@ struct thread_struct {
 	unsigned long	dvc2;
 #endif
 #endif
+};
+
+struct thread_struct {
+	unsigned long	ksp;		/* Kernel stack pointer */
+#ifdef CONFIG_PPC64
+	unsigned long	ksp_vsid;
+#endif
+	struct pt_regs	*regs;		/* Pointer to saved register state */
+	mm_segment_t	fs;		/* for get_fs() validation */
+#ifdef CONFIG_BOOKE
+	/* BookE base exception scratch space; align on cacheline */
+	unsigned long	normsave[8] ____cacheline_aligned;
+#endif
+#ifdef CONFIG_PPC32
+	void		*pgdir;		/* root of page-table tree */
+	unsigned long	ksp_limit;	/* if ksp <= ksp_limit stack overflow */
+#endif
+	struct debug_reg debug;
 	struct thread_fp_state	fp_state;
 	struct thread_fp_state	*fp_save_area;
 	int		fpexc_mode;	/* floating-point exception mode */
diff --git a/arch/powerpc/include/asm/reg_booke.h b/arch/powerpc/include/asm/reg_booke.h
index ed8f836da094..2e31aacd8acc 100644
--- a/arch/powerpc/include/asm/reg_booke.h
+++ b/arch/powerpc/include/asm/reg_booke.h
@@ -381,7 +381,7 @@
 #define DBCR0_IA34T	0x00004000	/* Instr Addr 3-4 range Toggle */
 #define DBCR0_FT	0x00000001	/* Freeze Timers on debug event */
 
-#define dbcr_iac_range(task)	((task)->thread.dbcr0)
+#define dbcr_iac_range(task)	((task)->thread.debug.dbcr0)
 #define DBCR_IAC12I	DBCR0_IA12			/* Range Inclusive */
 #define DBCR_IAC12X	(DBCR0_IA12 | DBCR0_IA12X)	/* Range Exclusive */
 #define DBCR_IAC12MODE	(DBCR0_IA12 | DBCR0_IA12X)	/* IAC 1-2 Mode Bits */
@@ -395,7 +395,7 @@
 #define DBCR1_DAC1W	0x20000000	/* DAC1 Write Debug Event */
 #define DBCR1_DAC2W	0x10000000	/* DAC2 Write Debug Event */
 
-#define dbcr_dac(task)	((task)->thread.dbcr1)
+#define dbcr_dac(task)	((task)->thread.debug.dbcr1)
 #define DBCR_DAC1R	DBCR1_DAC1R
 #define DBCR_DAC1W	DBCR1_DAC1W
 #define DBCR_DAC2R	DBCR1_DAC2R
@@ -441,7 +441,7 @@
 #define DBCR0_CRET	0x00000020	/* Critical Return Debug Event */
 #define DBCR0_FT	0x00000001	/* Freeze Timers on debug event */
 
-#define dbcr_dac(task)	((task)->thread.dbcr0)
+#define dbcr_dac(task)	((task)->thread.debug.dbcr0)
 #define DBCR_DAC1R	DBCR0_DAC1R
 #define DBCR_DAC1W	DBCR0_DAC1W
 #define DBCR_DAC2R	DBCR0_DAC2R
@@ -475,7 +475,7 @@
 #define DBCR1_IAC34MX	0x000000C0	/* Instr Addr 3-4 range eXclusive */
 #define DBCR1_IAC34AT	0x00000001	/* Instr Addr 3-4 range Toggle */
 
-#define dbcr_iac_range(task)	((task)->thread.dbcr1)
+#define dbcr_iac_range(task)	((task)->thread.debug.dbcr1)
 #define DBCR_IAC12I	DBCR1_IAC12M	/* Range Inclusive */
 #define DBCR_IAC12X	DBCR1_IAC12MX	/* Range Exclusive */
 #define DBCR_IAC12MODE	DBCR1_IAC12MX	/* IAC 1-2 Mode Bits */
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 6278edddc3f8..e60a3697932c 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -115,7 +115,7 @@ int main(void)
 #endif /* CONFIG_SPE */
 #endif /* CONFIG_PPC64 */
 #if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
-	DEFINE(THREAD_DBCR0, offsetof(struct thread_struct, dbcr0));
+	DEFINE(THREAD_DBCR0, offsetof(struct thread_struct, debug.dbcr0));
 #endif
 #ifdef CONFIG_KVM_BOOK3S_32_HANDLER
 	DEFINE(THREAD_KVM_SVCPU, offsetof(struct thread_struct, kvm_shadow_vcpu));
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 83079ef159b9..3db9d7e39f39 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -314,28 +314,28 @@ static DEFINE_PER_CPU(struct arch_hw_breakpoint, current_brk);
  */
 static void set_debug_reg_defaults(struct thread_struct *thread)
 {
-	thread->iac1 = thread->iac2 = 0;
+	thread->debug.iac1 = thread->debug.iac2 = 0;
 #if CONFIG_PPC_ADV_DEBUG_IACS > 2
-	thread->iac3 = thread->iac4 = 0;
+	thread->debug.iac3 = thread->debug.iac4 = 0;
 #endif
-	thread->dac1 = thread->dac2 = 0;
+	thread->debug.dac1 = thread->debug.dac2 = 0;
 #if CONFIG_PPC_ADV_DEBUG_DVCS > 0
-	thread->dvc1 = thread->dvc2 = 0;
+	thread->debug.dvc1 = thread->debug.dvc2 = 0;
 #endif
-	thread->dbcr0 = 0;
+	thread->debug.dbcr0 = 0;
 #ifdef CONFIG_BOOKE
 	/*
 	 * Force User/Supervisor bits to b11 (user-only MSR[PR]=1)
 	 */
-	thread->dbcr1 = DBCR1_IAC1US | DBCR1_IAC2US |
+	thread->debug.dbcr1 = DBCR1_IAC1US | DBCR1_IAC2US |
 			DBCR1_IAC3US | DBCR1_IAC4US;
 	/*
 	 * Force Data Address Compare User/Supervisor bits to be User-only
 	 * (0b11 MSR[PR]=1) and set all other bits in DBCR2 register to be 0.
 	 */
-	thread->dbcr2 = DBCR2_DAC1US | DBCR2_DAC2US;
+	thread->debug.dbcr2 = DBCR2_DAC1US | DBCR2_DAC2US;
 #else
-	thread->dbcr1 = 0;
+	thread->debug.dbcr1 = 0;
 #endif
 }
 
@@ -348,22 +348,22 @@ static void prime_debug_regs(struct thread_struct *thread)
 	 */
 	mtmsr(mfmsr() & ~MSR_DE);
 
-	mtspr(SPRN_IAC1, thread->iac1);
-	mtspr(SPRN_IAC2, thread->iac2);
+	mtspr(SPRN_IAC1, thread->debug.iac1);
+	mtspr(SPRN_IAC2, thread->debug.iac2);
 #if CONFIG_PPC_ADV_DEBUG_IACS > 2
-	mtspr(SPRN_IAC3, thread->iac3);
-	mtspr(SPRN_IAC4, thread->iac4);
+	mtspr(SPRN_IAC3, thread->debug.iac3);
+	mtspr(SPRN_IAC4, thread->debug.iac4);
 #endif
-	mtspr(SPRN_DAC1, thread->dac1);
-	mtspr(SPRN_DAC2, thread->dac2);
+	mtspr(SPRN_DAC1, thread->debug.dac1);
+	mtspr(SPRN_DAC2, thread->debug.dac2);
 #if CONFIG_PPC_ADV_DEBUG_DVCS > 0
-	mtspr(SPRN_DVC1, thread->dvc1);
-	mtspr(SPRN_DVC2, thread->dvc2);
+	mtspr(SPRN_DVC1, thread->debug.dvc1);
+	mtspr(SPRN_DVC2, thread->debug.dvc2);
 #endif
-	mtspr(SPRN_DBCR0, thread->dbcr0);
-	mtspr(SPRN_DBCR1, thread->dbcr1);
+	mtspr(SPRN_DBCR0, thread->debug.dbcr0);
+	mtspr(SPRN_DBCR1, thread->debug.dbcr1);
 #ifdef CONFIG_BOOKE
-	mtspr(SPRN_DBCR2, thread->dbcr2);
+	mtspr(SPRN_DBCR2, thread->debug.dbcr2);
 #endif
 }
 /*
@@ -373,8 +373,8 @@ static void prime_debug_regs(struct thread_struct *thread)
  */
 static void switch_booke_debug_regs(struct thread_struct *new_thread)
 {
-	if ((current->thread.dbcr0 & DBCR0_IDM)
-		|| (new_thread->dbcr0 & DBCR0_IDM))
+	if ((current->thread.debug.dbcr0 & DBCR0_IDM)
+		|| (new_thread->debug.dbcr0 & DBCR0_IDM))
 			prime_debug_regs(new_thread);
 }
 #else	/* !CONFIG_PPC_ADV_DEBUG_REGS */
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 1ca589c9ec6d..aedfd41d354c 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -855,8 +855,8 @@ void user_enable_single_step(struct task_struct *task)
 
 	if (regs != NULL) {
 #ifdef CONFIG_PPC_ADV_DEBUG_REGS
-		task->thread.dbcr0 &= ~DBCR0_BT;
-		task->thread.dbcr0 |= DBCR0_IDM | DBCR0_IC;
+		task->thread.debug.dbcr0 &= ~DBCR0_BT;
+		task->thread.debug.dbcr0 |= DBCR0_IDM | DBCR0_IC;
 		regs->msr |= MSR_DE;
 #else
 		regs->msr &= ~MSR_BE;
@@ -872,8 +872,8 @@ void user_enable_block_step(struct task_struct *task)
 
 	if (regs != NULL) {
 #ifdef CONFIG_PPC_ADV_DEBUG_REGS
-		task->thread.dbcr0 &= ~DBCR0_IC;
-		task->thread.dbcr0 = DBCR0_IDM | DBCR0_BT;
+		task->thread.debug.dbcr0 &= ~DBCR0_IC;
+		task->thread.debug.dbcr0 = DBCR0_IDM | DBCR0_BT;
 		regs->msr |= MSR_DE;
 #else
 		regs->msr &= ~MSR_SE;
@@ -895,16 +895,16 @@ void user_disable_single_step(struct task_struct *task)
 		 * And, after doing so, if all debug flags are off, turn
 		 * off DBCR0(IDM) and MSR(DE) .... Torez
 		 */
-		task->thread.dbcr0 &= ~DBCR0_IC;
+		task->thread.debug.dbcr0 &= ~DBCR0_IC;
 		/*
 		 * Test to see if any of the DBCR_ACTIVE_EVENTS bits are set.
 		 */
-		if (!DBCR_ACTIVE_EVENTS(task->thread.dbcr0,
-					task->thread.dbcr1)) {
+		if (!DBCR_ACTIVE_EVENTS(task->thread.debug.dbcr0,
+					task->thread.debug.dbcr1)) {
 			/*
 			 * All debug events were off.....
 			 */
-			task->thread.dbcr0 &= ~DBCR0_IDM;
+			task->thread.debug.dbcr0 &= ~DBCR0_IDM;
 			regs->msr &= ~MSR_DE;
 		}
 #else
@@ -1023,14 +1023,14 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr,
 	 */
 
 	/* DAC's hold the whole address without any mode flags */
-	task->thread.dac1 = data & ~0x3UL;
+	task->thread.debug.dac1 = data & ~0x3UL;
 
-	if (task->thread.dac1 == 0) {
+	if (task->thread.debug.dac1 == 0) {
 		dbcr_dac(task) &= ~(DBCR_DAC1R | DBCR_DAC1W);
-		if (!DBCR_ACTIVE_EVENTS(task->thread.dbcr0,
-					task->thread.dbcr1)) {
+		if (!DBCR_ACTIVE_EVENTS(task->thread.debug.dbcr0,
+					task->thread.debug.dbcr1)) {
 			task->thread.regs->msr &= ~MSR_DE;
-			task->thread.dbcr0 &= ~DBCR0_IDM;
+			task->thread.debug.dbcr0 &= ~DBCR0_IDM;
 		}
 		return 0;
 	}
@@ -1042,7 +1042,7 @@ int ptrace_set_debugreg(struct task_struct *task, unsigned long addr,
 
 	/* Set the Internal Debugging flag (IDM bit 1) for the DBCR0
 	   register */
-	task->thread.dbcr0 |= DBCR0_IDM;
+	task->thread.debug.dbcr0 |= DBCR0_IDM;
 
 	/* Check for write and read flags and set DBCR0
 	   accordingly */
@@ -1072,10 +1072,10 @@ static long set_instruction_bp(struct task_struct *child,
 			      struct ppc_hw_breakpoint *bp_info)
 {
 	int slot;
-	int slot1_in_use = ((child->thread.dbcr0 & DBCR0_IAC1) != 0);
-	int slot2_in_use = ((child->thread.dbcr0 & DBCR0_IAC2) != 0);
-	int slot3_in_use = ((child->thread.dbcr0 & DBCR0_IAC3) != 0);
-	int slot4_in_use = ((child->thread.dbcr0 & DBCR0_IAC4) != 0);
+	int slot1_in_use = ((child->thread.debug.dbcr0 & DBCR0_IAC1) != 0);
+	int slot2_in_use = ((child->thread.debug.dbcr0 & DBCR0_IAC2) != 0);
+	int slot3_in_use = ((child->thread.debug.dbcr0 & DBCR0_IAC3) != 0);
+	int slot4_in_use = ((child->thread.debug.dbcr0 & DBCR0_IAC4) != 0);
 
 	if (dbcr_iac_range(child) & DBCR_IAC12MODE)
 		slot2_in_use = 1;
@@ -1094,9 +1094,9 @@ static long set_instruction_bp(struct task_struct *child,
 		/* We need a pair of IAC regsisters */
 		if ((!slot1_in_use) && (!slot2_in_use)) {
 			slot = 1;
-			child->thread.iac1 = bp_info->addr;
-			child->thread.iac2 = bp_info->addr2;
-			child->thread.dbcr0 |= DBCR0_IAC1;
+			child->thread.debug.iac1 = bp_info->addr;
+			child->thread.debug.iac2 = bp_info->addr2;
+			child->thread.debug.dbcr0 |= DBCR0_IAC1;
 			if (bp_info->addr_mode ==
 					PPC_BREAKPOINT_MODE_RANGE_EXCLUSIVE)
 				dbcr_iac_range(child) |= DBCR_IAC12X;
@@ -1105,9 +1105,9 @@ static long set_instruction_bp(struct task_struct *child,
 #if CONFIG_PPC_ADV_DEBUG_IACS > 2
 		} else if ((!slot3_in_use) && (!slot4_in_use)) {
 			slot = 3;
-			child->thread.iac3 = bp_info->addr;
-			child->thread.iac4 = bp_info->addr2;
-			child->thread.dbcr0 |= DBCR0_IAC3;
+			child->thread.debug.iac3 = bp_info->addr;
+			child->thread.debug.iac4 = bp_info->addr2;
+			child->thread.debug.dbcr0 |= DBCR0_IAC3;
 			if (bp_info->addr_mode ==
 					PPC_BREAKPOINT_MODE_RANGE_EXCLUSIVE)
 				dbcr_iac_range(child) |= DBCR_IAC34X;
@@ -1127,30 +1127,30 @@ static long set_instruction_bp(struct task_struct *child,
 			 */
 			if (slot2_in_use || (slot3_in_use == slot4_in_use)) {
 				slot = 1;
-				child->thread.iac1 = bp_info->addr;
-				child->thread.dbcr0 |= DBCR0_IAC1;
+				child->thread.debug.iac1 = bp_info->addr;
+				child->thread.debug.dbcr0 |= DBCR0_IAC1;
 				goto out;
 			}
 		}
 		if (!slot2_in_use) {
 			slot = 2;
-			child->thread.iac2 = bp_info->addr;
-			child->thread.dbcr0 |= DBCR0_IAC2;
+			child->thread.debug.iac2 = bp_info->addr;
+			child->thread.debug.dbcr0 |= DBCR0_IAC2;
 #if CONFIG_PPC_ADV_DEBUG_IACS > 2
 		} else if (!slot3_in_use) {
 			slot = 3;
-			child->thread.iac3 = bp_info->addr;
-			child->thread.dbcr0 |= DBCR0_IAC3;
+			child->thread.debug.iac3 = bp_info->addr;
+			child->thread.debug.dbcr0 |= DBCR0_IAC3;
 		} else if (!slot4_in_use) {
 			slot = 4;
-			child->thread.iac4 = bp_info->addr;
-			child->thread.dbcr0 |= DBCR0_IAC4;
+			child->thread.debug.iac4 = bp_info->addr;
+			child->thread.debug.dbcr0 |= DBCR0_IAC4;
 #endif
 		} else
 			return -ENOSPC;
 	}
 out:
-	child->thread.dbcr0 |= DBCR0_IDM;
+	child->thread.debug.dbcr0 |= DBCR0_IDM;
 	child->thread.regs->msr |= MSR_DE;
 
 	return slot;
@@ -1160,49 +1160,49 @@ static int del_instruction_bp(struct task_struct *child, int slot)
 {
 	switch (slot) {
 	case 1:
-		if ((child->thread.dbcr0 & DBCR0_IAC1) == 0)
+		if ((child->thread.debug.dbcr0 & DBCR0_IAC1) == 0)
 			return -ENOENT;
 
 		if (dbcr_iac_range(child) & DBCR_IAC12MODE) {
 			/* address range - clear slots 1 & 2 */
-			child->thread.iac2 = 0;
+			child->thread.debug.iac2 = 0;
 			dbcr_iac_range(child) &= ~DBCR_IAC12MODE;
 		}
-		child->thread.iac1 = 0;
-		child->thread.dbcr0 &= ~DBCR0_IAC1;
+		child->thread.debug.iac1 = 0;
+		child->thread.debug.dbcr0 &= ~DBCR0_IAC1;
 		break;
 	case 2:
-		if ((child->thread.dbcr0 & DBCR0_IAC2) == 0)
+		if ((child->thread.debug.dbcr0 & DBCR0_IAC2) == 0)
 			return -ENOENT;
 
 		if (dbcr_iac_range(child) & DBCR_IAC12MODE)
 			/* used in a range */
 			return -EINVAL;
-		child->thread.iac2 = 0;
-		child->thread.dbcr0 &= ~DBCR0_IAC2;
+		child->thread.debug.iac2 = 0;
+		child->thread.debug.dbcr0 &= ~DBCR0_IAC2;
 		break;
 #if CONFIG_PPC_ADV_DEBUG_IACS > 2
 	case 3:
-		if ((child->thread.dbcr0 & DBCR0_IAC3) == 0)
+		if ((child->thread.debug.dbcr0 & DBCR0_IAC3) == 0)
 			return -ENOENT;
 
 		if (dbcr_iac_range(child) & DBCR_IAC34MODE) {
 			/* address range - clear slots 3 & 4 */
-			child->thread.iac4 = 0;
+			child->thread.debug.iac4 = 0;
 			dbcr_iac_range(child) &= ~DBCR_IAC34MODE;
 		}
-		child->thread.iac3 = 0;
-		child->thread.dbcr0 &= ~DBCR0_IAC3;
+		child->thread.debug.iac3 = 0;
+		child->thread.debug.dbcr0 &= ~DBCR0_IAC3;
 		break;
 	case 4:
-		if ((child->thread.dbcr0 & DBCR0_IAC4) == 0)
+		if ((child->thread.debug.dbcr0 & DBCR0_IAC4) == 0)
 			return -ENOENT;
 
 		if (dbcr_iac_range(child) & DBCR_IAC34MODE)
 			/* Used in a range */
 			return -EINVAL;
-		child->thread.iac4 = 0;
-		child->thread.dbcr0 &= ~DBCR0_IAC4;
+		child->thread.debug.iac4 = 0;
+		child->thread.debug.dbcr0 &= ~DBCR0_IAC4;
 		break;
 #endif
 	default:
@@ -1232,18 +1232,18 @@ static int set_dac(struct task_struct *child, struct ppc_hw_breakpoint *bp_info)
 			dbcr_dac(child) |= DBCR_DAC1R;
 		if (bp_info->trigger_type & PPC_BREAKPOINT_TRIGGER_WRITE)
 			dbcr_dac(child) |= DBCR_DAC1W;
-		child->thread.dac1 = (unsigned long)bp_info->addr;
+		child->thread.debug.dac1 = (unsigned long)bp_info->addr;
 #if CONFIG_PPC_ADV_DEBUG_DVCS > 0
 		if (byte_enable) {
-			child->thread.dvc1 =
+			child->thread.debug.dvc1 =
 				(unsigned long)bp_info->condition_value;
-			child->thread.dbcr2 |=
+			child->thread.debug.dbcr2 |=
 				((byte_enable << DBCR2_DVC1BE_SHIFT) |
 				 (condition_mode << DBCR2_DVC1M_SHIFT));
 		}
 #endif
 #ifdef CONFIG_PPC_ADV_DEBUG_DAC_RANGE
-	} else if (child->thread.dbcr2 & DBCR2_DAC12MODE) {
+	} else if (child->thread.debug.dbcr2 & DBCR2_DAC12MODE) {
 		/* Both dac1 and dac2 are part of a range */
 		return -ENOSPC;
 #endif
@@ -1253,19 +1253,19 @@ static int set_dac(struct task_struct *child, struct ppc_hw_breakpoint *bp_info)
 			dbcr_dac(child) |= DBCR_DAC2R;
 		if (bp_info->trigger_type & PPC_BREAKPOINT_TRIGGER_WRITE)
 			dbcr_dac(child) |= DBCR_DAC2W;
-		child->thread.dac2 = (unsigned long)bp_info->addr;
+		child->thread.debug.dac2 = (unsigned long)bp_info->addr;
 #if CONFIG_PPC_ADV_DEBUG_DVCS > 0
 		if (byte_enable) {
-			child->thread.dvc2 =
+			child->thread.debug.dvc2 =
 				(unsigned long)bp_info->condition_value;
-			child->thread.dbcr2 |=
+			child->thread.debug.dbcr2 |=
 				((byte_enable << DBCR2_DVC2BE_SHIFT) |
 				 (condition_mode << DBCR2_DVC2M_SHIFT));
 		}
 #endif
 	} else
 		return -ENOSPC;
-	child->thread.dbcr0 |= DBCR0_IDM;
+	child->thread.debug.dbcr0 |= DBCR0_IDM;
 	child->thread.regs->msr |= MSR_DE;
 
 	return slot + 4;
@@ -1277,32 +1277,32 @@ static int del_dac(struct task_struct *child, int slot)
 		if ((dbcr_dac(child) & (DBCR_DAC1R | DBCR_DAC1W)) == 0)
 			return -ENOENT;
 
-		child->thread.dac1 = 0;
+		child->thread.debug.dac1 = 0;
 		dbcr_dac(child) &= ~(DBCR_DAC1R | DBCR_DAC1W);
 #ifdef CONFIG_PPC_ADV_DEBUG_DAC_RANGE
-		if (child->thread.dbcr2 & DBCR2_DAC12MODE) {
-			child->thread.dac2 = 0;
-			child->thread.dbcr2 &= ~DBCR2_DAC12MODE;
+		if (child->thread.debug.dbcr2 & DBCR2_DAC12MODE) {
+			child->thread.debug.dac2 = 0;
+			child->thread.debug.dbcr2 &= ~DBCR2_DAC12MODE;
 		}
-		child->thread.dbcr2 &= ~(DBCR2_DVC1M | DBCR2_DVC1BE);
+		child->thread.debug.dbcr2 &= ~(DBCR2_DVC1M | DBCR2_DVC1BE);
 #endif
 #if CONFIG_PPC_ADV_DEBUG_DVCS > 0
-		child->thread.dvc1 = 0;
+		child->thread.debug.dvc1 = 0;
 #endif
 	} else if (slot == 2) {
 		if ((dbcr_dac(child) & (DBCR_DAC2R | DBCR_DAC2W)) == 0)
 			return -ENOENT;
 
 #ifdef CONFIG_PPC_ADV_DEBUG_DAC_RANGE
-		if (child->thread.dbcr2 & DBCR2_DAC12MODE)
+		if (child->thread.debug.dbcr2 & DBCR2_DAC12MODE)
 			/* Part of a range */
 			return -EINVAL;
-		child->thread.dbcr2 &= ~(DBCR2_DVC2M | DBCR2_DVC2BE);
+		child->thread.debug.dbcr2 &= ~(DBCR2_DVC2M | DBCR2_DVC2BE);
 #endif
 #if CONFIG_PPC_ADV_DEBUG_DVCS > 0
-		child->thread.dvc2 = 0;
+		child->thread.debug.dvc2 = 0;
 #endif
-		child->thread.dac2 = 0;
+		child->thread.debug.dac2 = 0;
 		dbcr_dac(child) &= ~(DBCR_DAC2R | DBCR_DAC2W);
 	} else
 		return -EINVAL;
@@ -1344,22 +1344,22 @@ static int set_dac_range(struct task_struct *child,
 			return -EIO;
 	}
 
-	if (child->thread.dbcr0 &
+	if (child->thread.debug.dbcr0 &
 	    (DBCR0_DAC1R | DBCR0_DAC1W | DBCR0_DAC2R | DBCR0_DAC2W))
 		return -ENOSPC;
 
 	if (bp_info->trigger_type & PPC_BREAKPOINT_TRIGGER_READ)
-		child->thread.dbcr0 |= (DBCR0_DAC1R | DBCR0_IDM);
+		child->thread.debug.dbcr0 |= (DBCR0_DAC1R | DBCR0_IDM);
 	if (bp_info->trigger_type & PPC_BREAKPOINT_TRIGGER_WRITE)
-		child->thread.dbcr0 |= (DBCR0_DAC1W | DBCR0_IDM);
-	child->thread.dac1 = bp_info->addr;
-	child->thread.dac2 = bp_info->addr2;
+		child->thread.debug.dbcr0 |= (DBCR0_DAC1W | DBCR0_IDM);
+	child->thread.debug.dac1 = bp_info->addr;
+	child->thread.debug.dac2 = bp_info->addr2;
 	if (mode == PPC_BREAKPOINT_MODE_RANGE_INCLUSIVE)
-		child->thread.dbcr2  |= DBCR2_DAC12M;
+		child->thread.debug.dbcr2  |= DBCR2_DAC12M;
 	else if (mode == PPC_BREAKPOINT_MODE_RANGE_EXCLUSIVE)
-		child->thread.dbcr2  |= DBCR2_DAC12MX;
+		child->thread.debug.dbcr2  |= DBCR2_DAC12MX;
 	else	/* PPC_BREAKPOINT_MODE_MASK */
-		child->thread.dbcr2  |= DBCR2_DAC12MM;
+		child->thread.debug.dbcr2  |= DBCR2_DAC12MM;
 	child->thread.regs->msr |= MSR_DE;
 
 	return 5;
@@ -1490,9 +1490,9 @@ static long ppc_del_hwdebug(struct task_struct *child, long data)
 		rc = del_dac(child, (int)data - 4);
 
 	if (!rc) {
-		if (!DBCR_ACTIVE_EVENTS(child->thread.dbcr0,
-					child->thread.dbcr1)) {
-			child->thread.dbcr0 &= ~DBCR0_IDM;
+		if (!DBCR_ACTIVE_EVENTS(child->thread.debug.dbcr0,
+					child->thread.debug.dbcr1)) {
+			child->thread.debug.dbcr0 &= ~DBCR0_IDM;
 			child->thread.regs->msr &= ~MSR_DE;
 		}
 	}
@@ -1670,7 +1670,7 @@ long arch_ptrace(struct task_struct *child, long request,
 		if (addr > 0)
 			break;
 #ifdef CONFIG_PPC_ADV_DEBUG_REGS
-		ret = put_user(child->thread.dac1, datalp);
+		ret = put_user(child->thread.debug.dac1, datalp);
 #else
 		dabr_fake = ((child->thread.hw_brk.address & (~HW_BRK_TYPE_DABR)) |
 			     (child->thread.hw_brk.type & HW_BRK_TYPE_DABR));
diff --git a/arch/powerpc/kernel/ptrace32.c b/arch/powerpc/kernel/ptrace32.c
index 097f8dc426a0..f52b7db327c8 100644
--- a/arch/powerpc/kernel/ptrace32.c
+++ b/arch/powerpc/kernel/ptrace32.c
@@ -266,7 +266,7 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 		if (addr > 0)
 			break;
 #ifdef CONFIG_PPC_ADV_DEBUG_REGS
-		ret = put_user(child->thread.dac1, (u32 __user *)data);
+		ret = put_user(child->thread.debug.dac1, (u32 __user *)data);
 #else
 		dabr_fake = (
 			(child->thread.hw_brk.address & (~HW_BRK_TYPE_DABR)) |
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index c094e28b3f10..1a410aa57fb7 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -1312,7 +1312,7 @@ int sys_debug_setcontext(struct ucontext __user *ctx,
 	unsigned char tmp;
 	unsigned long new_msr = regs->msr;
 #ifdef CONFIG_PPC_ADV_DEBUG_REGS
-	unsigned long new_dbcr0 = current->thread.dbcr0;
+	unsigned long new_dbcr0 = current->thread.debug.dbcr0;
 #endif
 
 	for (i=0; i<ndbg; i++) {
@@ -1327,7 +1327,7 @@ int sys_debug_setcontext(struct ucontext __user *ctx,
 			} else {
 				new_dbcr0 &= ~DBCR0_IC;
 				if (!DBCR_ACTIVE_EVENTS(new_dbcr0,
-						current->thread.dbcr1)) {
+						current->thread.debug.dbcr1)) {
 					new_msr &= ~MSR_DE;
 					new_dbcr0 &= ~DBCR0_IDM;
 				}
@@ -1362,7 +1362,7 @@ int sys_debug_setcontext(struct ucontext __user *ctx,
 	   the user is really doing something wrong. */
 	regs->msr = new_msr;
 #ifdef CONFIG_PPC_ADV_DEBUG_REGS
-	current->thread.dbcr0 = new_dbcr0;
+	current->thread.debug.dbcr0 = new_dbcr0;
 #endif
 
 	if (!access_ok(VERIFY_READ, ctx, sizeof(*ctx))
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 36a1f95a2a36..f686686ca0aa 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -351,8 +351,8 @@ static inline int check_io_access(struct pt_regs *regs)
 #define REASON_TRAP		ESR_PTR
 
 /* single-step stuff */
-#define single_stepping(regs)	(current->thread.dbcr0 & DBCR0_IC)
-#define clear_single_step(regs)	(current->thread.dbcr0 &= ~DBCR0_IC)
+#define single_stepping(regs)	(current->thread.debug.dbcr0 & DBCR0_IC)
+#define clear_single_step(regs)	(current->thread.debug.dbcr0 &= ~DBCR0_IC)
 
 #else
 /* On non-4xx, the reason for the machine check or program
@@ -1489,7 +1489,7 @@ static void handle_debug(struct pt_regs *regs, unsigned long debug_status)
 	if (debug_status & (DBSR_DAC1R | DBSR_DAC1W)) {
 		dbcr_dac(current) &= ~(DBCR_DAC1R | DBCR_DAC1W);
 #ifdef CONFIG_PPC_ADV_DEBUG_DAC_RANGE
-		current->thread.dbcr2 &= ~DBCR2_DAC12MODE;
+		current->thread.debug.dbcr2 &= ~DBCR2_DAC12MODE;
 #endif
 		do_send_trap(regs, mfspr(SPRN_DAC1), debug_status, TRAP_HWBKPT,
 			     5);
@@ -1500,24 +1500,24 @@ static void handle_debug(struct pt_regs *regs, unsigned long debug_status)
 			     6);
 		changed |= 0x01;
 	}  else if (debug_status & DBSR_IAC1) {
-		current->thread.dbcr0 &= ~DBCR0_IAC1;
+		current->thread.debug.dbcr0 &= ~DBCR0_IAC1;
 		dbcr_iac_range(current) &= ~DBCR_IAC12MODE;
 		do_send_trap(regs, mfspr(SPRN_IAC1), debug_status, TRAP_HWBKPT,
 			     1);
 		changed |= 0x01;
 	}  else if (debug_status & DBSR_IAC2) {
-		current->thread.dbcr0 &= ~DBCR0_IAC2;
+		current->thread.debug.dbcr0 &= ~DBCR0_IAC2;
 		do_send_trap(regs, mfspr(SPRN_IAC2), debug_status, TRAP_HWBKPT,
 			     2);
 		changed |= 0x01;
 	}  else if (debug_status & DBSR_IAC3) {
-		current->thread.dbcr0 &= ~DBCR0_IAC3;
+		current->thread.debug.dbcr0 &= ~DBCR0_IAC3;
 		dbcr_iac_range(current) &= ~DBCR_IAC34MODE;
 		do_send_trap(regs, mfspr(SPRN_IAC3), debug_status, TRAP_HWBKPT,
 			     3);
 		changed |= 0x01;
 	}  else if (debug_status & DBSR_IAC4) {
-		current->thread.dbcr0 &= ~DBCR0_IAC4;
+		current->thread.debug.dbcr0 &= ~DBCR0_IAC4;
 		do_send_trap(regs, mfspr(SPRN_IAC4), debug_status, TRAP_HWBKPT,
 			     4);
 		changed |= 0x01;
@@ -1527,19 +1527,20 @@ static void handle_debug(struct pt_regs *regs, unsigned long debug_status)
 	 * Check all other debug flags and see if that bit needs to be turned
 	 * back on or not.
 	 */
-	if (DBCR_ACTIVE_EVENTS(current->thread.dbcr0, current->thread.dbcr1))
+	if (DBCR_ACTIVE_EVENTS(current->thread.debug.dbcr0,
+	    current->thread.debug.dbcr1))
 		regs->msr |= MSR_DE;
 	else
 		/* Make sure the IDM flag is off */
-		current->thread.dbcr0 &= ~DBCR0_IDM;
+		current->thread.debug.dbcr0 &= ~DBCR0_IDM;
 
 	if (changed & 0x01)
-		mtspr(SPRN_DBCR0, current->thread.dbcr0);
+		mtspr(SPRN_DBCR0, current->thread.debug.dbcr0);
 }
 
 void __kprobes DebugException(struct pt_regs *regs, unsigned long debug_status)
 {
-	current->thread.dbsr = debug_status;
+	current->thread.debug.dbsr = debug_status;
 
 	/* Hack alert: On BookE, Branch Taken stops on the branch itself, while
 	 * on server, it stops on the target of the branch. In order to simulate
@@ -1556,8 +1557,8 @@ void __kprobes DebugException(struct pt_regs *regs, unsigned long debug_status)
 
 		/* Do the single step trick only when coming from userspace */
 		if (user_mode(regs)) {
-			current->thread.dbcr0 &= ~DBCR0_BT;
-			current->thread.dbcr0 |= DBCR0_IDM | DBCR0_IC;
+			current->thread.debug.dbcr0 &= ~DBCR0_BT;
+			current->thread.debug.dbcr0 |= DBCR0_IDM | DBCR0_IC;
 			regs->msr |= MSR_DE;
 			return;
 		}
@@ -1585,13 +1586,13 @@ void __kprobes DebugException(struct pt_regs *regs, unsigned long debug_status)
 			return;
 
 		if (user_mode(regs)) {
-			current->thread.dbcr0 &= ~DBCR0_IC;
-			if (DBCR_ACTIVE_EVENTS(current->thread.dbcr0,
-					       current->thread.dbcr1))
+			current->thread.debug.dbcr0 &= ~DBCR0_IC;
+			if (DBCR_ACTIVE_EVENTS(current->thread.debug.dbcr0,
+					       current->thread.debug.dbcr1))
 				regs->msr |= MSR_DE;
 			else
 				/* Make sure the IDM bit is off */
-				current->thread.dbcr0 &= ~DBCR0_IDM;
+				current->thread.debug.dbcr0 &= ~DBCR0_IDM;
 		}
 
 		_exception(SIGTRAP, regs, TRAP_TRACE, regs->nip);
-- 
cgit 


From 891292a767c2453af0e5be9465e95b06b4b29ebe Mon Sep 17 00:00:00 2001
From: Patrick Palka <patrick@parcs.ath.cx>
Date: Fri, 11 Oct 2013 13:11:55 -0400
Subject: time: Fix signedness bug in sysfs_get_uname() and its callers

sysfs_get_uname() is erroneously declared as returning size_t even
though it may return a negative value, specifically -EINVAL.  Its
callers then check whether its return value is less than zero and indeed
that is never the case for size_t.

This patch changes sysfs_get_uname() to return ssize_t and makes sure
its callers use ssize_t accordingly.

Signed-off-by: Patrick Palka <patrick@parcs.ath.cx>
[jstultz: Didn't apply cleanly, as a similar partial fix was also applied
so had to resolve the collisions]
Signed-off-by: John Stultz <john.stultz@linaro.org>
---
 kernel/time/clockevents.c   | 2 +-
 kernel/time/clocksource.c   | 2 +-
 kernel/time/tick-internal.h | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/time/clockevents.c b/kernel/time/clockevents.c
index 38959c866789..30554b9fb1f7 100644
--- a/kernel/time/clockevents.c
+++ b/kernel/time/clockevents.c
@@ -584,7 +584,7 @@ static ssize_t sysfs_unbind_tick_dev(struct device *dev,
 				     const char *buf, size_t count)
 {
 	char name[CS_NAME_LEN];
-	size_t ret = sysfs_get_uname(buf, name, count);
+	ssize_t ret = sysfs_get_uname(buf, name, count);
 	struct clock_event_device *ce;
 
 	if (ret < 0)
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index c9317e14aae6..ba3e502c955a 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -909,7 +909,7 @@ sysfs_show_current_clocksources(struct device *dev,
 	return count;
 }
 
-size_t sysfs_get_uname(const char *buf, char *dst, size_t cnt)
+ssize_t sysfs_get_uname(const char *buf, char *dst, size_t cnt)
 {
 	size_t ret = cnt;
 
diff --git a/kernel/time/tick-internal.h b/kernel/time/tick-internal.h
index bc906cad709b..18e71f7fbc2a 100644
--- a/kernel/time/tick-internal.h
+++ b/kernel/time/tick-internal.h
@@ -31,7 +31,7 @@ extern void tick_install_replacement(struct clock_event_device *dev);
 
 extern void clockevents_shutdown(struct clock_event_device *dev);
 
-extern size_t sysfs_get_uname(const char *buf, char *dst, size_t cnt);
+extern ssize_t sysfs_get_uname(const char *buf, char *dst, size_t cnt);
 
 /*
  * NO_HZ / high resolution timer shared code
-- 
cgit 


From 3743c9b8ceb638b6e4b78b42f2262e22aa6359f0 Mon Sep 17 00:00:00 2001
From: Bharat Bhushan <r65777@freescale.com>
Date: Thu, 4 Jul 2013 12:27:44 +0530
Subject: powerpc: export debug registers save function for KVM

KVM need this function when switching from vcpu to user-space
thread. My subsequent patch will use this function.

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Acked-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/include/asm/switch_to.h | 1 +
 arch/powerpc/kernel/process.c        | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/switch_to.h b/arch/powerpc/include/asm/switch_to.h
index 2be5618cdec6..9ee12610af02 100644
--- a/arch/powerpc/include/asm/switch_to.h
+++ b/arch/powerpc/include/asm/switch_to.h
@@ -35,6 +35,7 @@ extern void giveup_vsx(struct task_struct *);
 extern void enable_kernel_spe(void);
 extern void giveup_spe(struct task_struct *);
 extern void load_up_spe(struct task_struct *);
+extern void switch_booke_debug_regs(struct thread_struct *new_thread);
 
 #ifndef CONFIG_SMP
 extern void discard_lazy_cpu_state(void);
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 3db9d7e39f39..4d42c4de8b9b 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -371,12 +371,13 @@ static void prime_debug_regs(struct thread_struct *thread)
  * debug registers, set the debug registers from the values
  * stored in the new thread.
  */
-static void switch_booke_debug_regs(struct thread_struct *new_thread)
+void switch_booke_debug_regs(struct thread_struct *new_thread)
 {
 	if ((current->thread.debug.dbcr0 & DBCR0_IDM)
 		|| (new_thread->debug.dbcr0 & DBCR0_IDM))
 			prime_debug_regs(new_thread);
 }
+EXPORT_SYMBOL_GPL(switch_booke_debug_regs);
 #else	/* !CONFIG_PPC_ADV_DEBUG_REGS */
 #ifndef CONFIG_HAVE_HW_BREAKPOINT
 static void set_debug_reg_defaults(struct thread_struct *thread)
-- 
cgit 


From 682775b8de995d97956447730c04d2ff978d4e13 Mon Sep 17 00:00:00 2001
From: James Yang <James.Yang@freescale.com>
Date: Fri, 5 Jul 2013 14:49:43 -0500
Subject: powerpc/booke: clear DBCR0_BT in user_disable_single_step()

BookE version of user_disable_single_step() clears DBCR0_IC for the
instruction completion debug, but did not also clear DBCR0_BT for the
branch taken exception.  This behavior was lost by the 2/2010 patch.

Signed-off-by: James Yang <James.Yang@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/kernel/ptrace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index aedfd41d354c..01be88b7321e 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -895,7 +895,7 @@ void user_disable_single_step(struct task_struct *task)
 		 * And, after doing so, if all debug flags are off, turn
 		 * off DBCR0(IDM) and MSR(DE) .... Torez
 		 */
-		task->thread.debug.dbcr0 &= ~DBCR0_IC;
+		task->thread.debug.dbcr0 &= ~(DBCR0_IC|DBCR0_BT);
 		/*
 		 * Test to see if any of the DBCR_ACTIVE_EVENTS bits are set.
 		 */
-- 
cgit 


From 057db8488b53d5e4faa0cedb2f39d4ae75dfbdbb Mon Sep 17 00:00:00 2001
From: Steven Rostedt <rostedt@goodmis.org>
Date: Wed, 9 Oct 2013 22:23:23 -0400
Subject: tracing: Fix potential out-of-bounds in trace_get_user()

Andrey reported the following report:

ERROR: AddressSanitizer: heap-buffer-overflow on address ffff8800359c99f3
ffff8800359c99f3 is located 0 bytes to the right of 243-byte region [ffff8800359c9900, ffff8800359c99f3)
Accessed by thread T13003:
  #0 ffffffff810dd2da (asan_report_error+0x32a/0x440)
  #1 ffffffff810dc6b0 (asan_check_region+0x30/0x40)
  #2 ffffffff810dd4d3 (__tsan_write1+0x13/0x20)
  #3 ffffffff811cd19e (ftrace_regex_release+0x1be/0x260)
  #4 ffffffff812a1065 (__fput+0x155/0x360)
  #5 ffffffff812a12de (____fput+0x1e/0x30)
  #6 ffffffff8111708d (task_work_run+0x10d/0x140)
  #7 ffffffff810ea043 (do_exit+0x433/0x11f0)
  #8 ffffffff810eaee4 (do_group_exit+0x84/0x130)
  #9 ffffffff810eafb1 (SyS_exit_group+0x21/0x30)
  #10 ffffffff81928782 (system_call_fastpath+0x16/0x1b)

Allocated by thread T5167:
  #0 ffffffff810dc778 (asan_slab_alloc+0x48/0xc0)
  #1 ffffffff8128337c (__kmalloc+0xbc/0x500)
  #2 ffffffff811d9d54 (trace_parser_get_init+0x34/0x90)
  #3 ffffffff811cd7b3 (ftrace_regex_open+0x83/0x2e0)
  #4 ffffffff811cda7d (ftrace_filter_open+0x2d/0x40)
  #5 ffffffff8129b4ff (do_dentry_open+0x32f/0x430)
  #6 ffffffff8129b668 (finish_open+0x68/0xa0)
  #7 ffffffff812b66ac (do_last+0xb8c/0x1710)
  #8 ffffffff812b7350 (path_openat+0x120/0xb50)
  #9 ffffffff812b8884 (do_filp_open+0x54/0xb0)
  #10 ffffffff8129d36c (do_sys_open+0x1ac/0x2c0)
  #11 ffffffff8129d4b7 (SyS_open+0x37/0x50)
  #12 ffffffff81928782 (system_call_fastpath+0x16/0x1b)

Shadow bytes around the buggy address:
  ffff8800359c9700: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
  ffff8800359c9780: fd fd fd fd fd fd fd fd fa fa fa fa fa fa fa fa
  ffff8800359c9800: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  ffff8800359c9880: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  ffff8800359c9900: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>ffff8800359c9980: 00 00 00 00 00 00 00 00 00 00 00 00 00 00[03]fb
  ffff8800359c9a00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  ffff8800359c9a80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
  ffff8800359c9b00: fa fa fa fa fa fa fa fa 00 00 00 00 00 00 00 00
  ffff8800359c9b80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
  ffff8800359c9c00: 00 00 00 00 00 00 00 00 fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
  Addressable:           00
  Partially addressable: 01 02 03 04 05 06 07
  Heap redzone:          fa
  Heap kmalloc redzone:  fb
  Freed heap region:     fd
  Shadow gap:            fe

The out-of-bounds access happens on 'parser->buffer[parser->idx] = 0;'

Although the crash happened in ftrace_regex_open() the real bug
occurred in trace_get_user() where there's an incrementation to
parser->idx without a check against the size. The way it is triggered
is if userspace sends in 128 characters (EVENT_BUF_SIZE + 1), the loop
that reads the last character stores it and then breaks out because
there is no more characters. Then the last character is read to determine
what to do next, and the index is incremented without checking size.

Then the caller of trace_get_user() usually nulls out the last character
with a zero, but since the index is equal to the size, it writes a nul
character after the allocated space, which can corrupt memory.

Luckily, only root user has write access to this file.

Link: http://lkml.kernel.org/r/20131009222323.04fd1a0d@gandalf.local.home

Reported-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/trace.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index d5f7c4d84bcd..063a92bad578 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -843,9 +843,12 @@ int trace_get_user(struct trace_parser *parser, const char __user *ubuf,
 	if (isspace(ch)) {
 		parser->buffer[parser->idx] = 0;
 		parser->cont = false;
-	} else {
+	} else if (parser->idx < parser->size - 1) {
 		parser->cont = true;
 		parser->buffer[parser->idx++] = ch;
+	} else {
+		ret = -EINVAL;
+		goto out;
 	}
 
 	*ppos += read;
-- 
cgit 


From 9aa72b4bf823b7b439fbba95fa84abee3b9d6d79 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Mon, 14 Oct 2013 17:24:23 +0900
Subject: ftrace: Get rid of ftrace_graph_filter_enabled

The ftrace_graph_filter_enabled means that user sets function filter
and it always has same meaning of ftrace_graph_count > 0.

Link: http://lkml.kernel.org/r/1381739066-7531-2-git-send-email-namhyung@kernel.org

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/ftrace.c | 6 +-----
 kernel/trace/trace.h  | 3 +--
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 03cf44ac54d3..a77e4a0142ee 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -3776,7 +3776,6 @@ static const struct file_operations ftrace_notrace_fops = {
 static DEFINE_MUTEX(graph_lock);
 
 int ftrace_graph_count;
-int ftrace_graph_filter_enabled;
 unsigned long ftrace_graph_funcs[FTRACE_GRAPH_MAX_FUNCS] __read_mostly;
 
 static void *
@@ -3799,7 +3798,7 @@ static void *g_start(struct seq_file *m, loff_t *pos)
 	mutex_lock(&graph_lock);
 
 	/* Nothing, tell g_show to print all functions are enabled */
-	if (!ftrace_graph_filter_enabled && !*pos)
+	if (!ftrace_graph_count && !*pos)
 		return (void *)1;
 
 	return __g_next(m, pos);
@@ -3845,7 +3844,6 @@ ftrace_graph_open(struct inode *inode, struct file *file)
 	mutex_lock(&graph_lock);
 	if ((file->f_mode & FMODE_WRITE) &&
 	    (file->f_flags & O_TRUNC)) {
-		ftrace_graph_filter_enabled = 0;
 		ftrace_graph_count = 0;
 		memset(ftrace_graph_funcs, 0, sizeof(ftrace_graph_funcs));
 	}
@@ -3925,8 +3923,6 @@ out:
 	if (fail)
 		return -EINVAL;
 
-	ftrace_graph_filter_enabled = !!(*idx);
-
 	return 0;
 }
 
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 10c86fb7a2b4..40211cef2796 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -730,7 +730,6 @@ extern void __trace_graph_return(struct trace_array *tr,
 #ifdef CONFIG_DYNAMIC_FTRACE
 /* TODO: make this variable */
 #define FTRACE_GRAPH_MAX_FUNCS		32
-extern int ftrace_graph_filter_enabled;
 extern int ftrace_graph_count;
 extern unsigned long ftrace_graph_funcs[FTRACE_GRAPH_MAX_FUNCS];
 
@@ -738,7 +737,7 @@ static inline int ftrace_graph_addr(unsigned long addr)
 {
 	int i;
 
-	if (!ftrace_graph_filter_enabled)
+	if (!ftrace_graph_count)
 		return 1;
 
 	for (i = 0; i < ftrace_graph_count; i++) {
-- 
cgit 


From faf982a60f7c985808f761cff5d508f21c691790 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Mon, 14 Oct 2013 17:24:24 +0900
Subject: ftrace: Introduce struct ftrace_graph_data

The struct ftrace_graph_data is for generalizing the access to
set_graph_function file.  This is a preparation for adding support to
set_graph_notrace.

Link: http://lkml.kernel.org/r/1381739066-7531-3-git-send-email-namhyung@kernel.org

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/ftrace.c | 81 +++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 62 insertions(+), 19 deletions(-)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index a77e4a0142ee..0ff3449b4272 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -3641,7 +3641,7 @@ __setup("ftrace_filter=", set_ftrace_filter);
 
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 static char ftrace_graph_buf[FTRACE_FILTER_SIZE] __initdata;
-static int ftrace_set_func(unsigned long *array, int *idx, char *buffer);
+static int ftrace_set_func(unsigned long *array, int *idx, int size, char *buffer);
 
 static int __init set_graph_function(char *str)
 {
@@ -3659,7 +3659,7 @@ static void __init set_ftrace_early_graph(char *buf)
 		func = strsep(&buf, ",");
 		/* we allow only one expression at a time */
 		ret = ftrace_set_func(ftrace_graph_funcs, &ftrace_graph_count,
-				      func);
+				      FTRACE_GRAPH_MAX_FUNCS, func);
 		if (ret)
 			printk(KERN_DEBUG "ftrace: function %s not "
 					  "traceable\n", func);
@@ -3778,12 +3778,21 @@ static DEFINE_MUTEX(graph_lock);
 int ftrace_graph_count;
 unsigned long ftrace_graph_funcs[FTRACE_GRAPH_MAX_FUNCS] __read_mostly;
 
+struct ftrace_graph_data {
+	unsigned long *table;
+	size_t size;
+	int *count;
+	const struct seq_operations *seq_ops;
+};
+
 static void *
 __g_next(struct seq_file *m, loff_t *pos)
 {
-	if (*pos >= ftrace_graph_count)
+	struct ftrace_graph_data *fgd = m->private;
+
+	if (*pos >= *fgd->count)
 		return NULL;
-	return &ftrace_graph_funcs[*pos];
+	return &fgd->table[*pos];
 }
 
 static void *
@@ -3795,10 +3804,12 @@ g_next(struct seq_file *m, void *v, loff_t *pos)
 
 static void *g_start(struct seq_file *m, loff_t *pos)
 {
+	struct ftrace_graph_data *fgd = m->private;
+
 	mutex_lock(&graph_lock);
 
 	/* Nothing, tell g_show to print all functions are enabled */
-	if (!ftrace_graph_count && !*pos)
+	if (!*fgd->count && !*pos)
 		return (void *)1;
 
 	return __g_next(m, pos);
@@ -3834,37 +3845,68 @@ static const struct seq_operations ftrace_graph_seq_ops = {
 };
 
 static int
-ftrace_graph_open(struct inode *inode, struct file *file)
+__ftrace_graph_open(struct inode *inode, struct file *file,
+		    struct ftrace_graph_data *fgd)
 {
 	int ret = 0;
 
-	if (unlikely(ftrace_disabled))
-		return -ENODEV;
-
 	mutex_lock(&graph_lock);
 	if ((file->f_mode & FMODE_WRITE) &&
 	    (file->f_flags & O_TRUNC)) {
-		ftrace_graph_count = 0;
-		memset(ftrace_graph_funcs, 0, sizeof(ftrace_graph_funcs));
+		*fgd->count = 0;
+		memset(fgd->table, 0, fgd->size * sizeof(*fgd->table));
 	}
 	mutex_unlock(&graph_lock);
 
-	if (file->f_mode & FMODE_READ)
-		ret = seq_open(file, &ftrace_graph_seq_ops);
+	if (file->f_mode & FMODE_READ) {
+		ret = seq_open(file, fgd->seq_ops);
+		if (!ret) {
+			struct seq_file *m = file->private_data;
+			m->private = fgd;
+		}
+	} else
+		file->private_data = fgd;
 
 	return ret;
 }
 
+static int
+ftrace_graph_open(struct inode *inode, struct file *file)
+{
+	struct ftrace_graph_data *fgd;
+
+	if (unlikely(ftrace_disabled))
+		return -ENODEV;
+
+	fgd = kmalloc(sizeof(*fgd), GFP_KERNEL);
+	if (fgd == NULL)
+		return -ENOMEM;
+
+	fgd->table = ftrace_graph_funcs;
+	fgd->size = FTRACE_GRAPH_MAX_FUNCS;
+	fgd->count = &ftrace_graph_count;
+	fgd->seq_ops = &ftrace_graph_seq_ops;
+
+	return __ftrace_graph_open(inode, file, fgd);
+}
+
 static int
 ftrace_graph_release(struct inode *inode, struct file *file)
 {
-	if (file->f_mode & FMODE_READ)
+	if (file->f_mode & FMODE_READ) {
+		struct seq_file *m = file->private_data;
+
+		kfree(m->private);
 		seq_release(inode, file);
+	} else {
+		kfree(file->private_data);
+	}
+
 	return 0;
 }
 
 static int
-ftrace_set_func(unsigned long *array, int *idx, char *buffer)
+ftrace_set_func(unsigned long *array, int *idx, int size, char *buffer)
 {
 	struct dyn_ftrace *rec;
 	struct ftrace_page *pg;
@@ -3877,7 +3919,7 @@ ftrace_set_func(unsigned long *array, int *idx, char *buffer)
 
 	/* decode regex */
 	type = filter_parse_regex(buffer, strlen(buffer), &search, &not);
-	if (!not && *idx >= FTRACE_GRAPH_MAX_FUNCS)
+	if (!not && *idx >= size)
 		return -EBUSY;
 
 	search_len = strlen(search);
@@ -3905,7 +3947,7 @@ ftrace_set_func(unsigned long *array, int *idx, char *buffer)
 				fail = 0;
 				if (!exists) {
 					array[(*idx)++] = rec->ip;
-					if (*idx >= FTRACE_GRAPH_MAX_FUNCS)
+					if (*idx >= size)
 						goto out;
 				}
 			} else {
@@ -3932,6 +3974,7 @@ ftrace_graph_write(struct file *file, const char __user *ubuf,
 {
 	struct trace_parser parser;
 	ssize_t read, ret;
+	struct ftrace_graph_data *fgd = file->private_data;
 
 	if (!cnt)
 		return 0;
@@ -3949,8 +3992,8 @@ ftrace_graph_write(struct file *file, const char __user *ubuf,
 		parser.buffer[parser.idx] = 0;
 
 		/* we allow only one expression at a time */
-		ret = ftrace_set_func(ftrace_graph_funcs, &ftrace_graph_count,
-					parser.buffer);
+		ret = ftrace_set_func(fgd->table, fgd->count, fgd->size,
+				      parser.buffer);
 		if (ret)
 			goto out_free;
 	}
-- 
cgit 


From 6a10108bdbbfb66e5c431fd1056534e9717d34eb Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Mon, 14 Oct 2013 17:24:25 +0900
Subject: ftrace: Narrow down the protected area of graph_lock

The parser set up is just a generic utility that uses local variables
allocated by the function. There's no need to hold the graph_lock for
this set up.

This also makes the code simpler.

Link: http://lkml.kernel.org/r/1381739066-7531-4-git-send-email-namhyung@kernel.org

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/ftrace.c | 22 +++++++++-------------
 1 file changed, 9 insertions(+), 13 deletions(-)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 0ff3449b4272..26a229ab0c19 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -3973,37 +3973,33 @@ ftrace_graph_write(struct file *file, const char __user *ubuf,
 		   size_t cnt, loff_t *ppos)
 {
 	struct trace_parser parser;
-	ssize_t read, ret;
+	ssize_t read, ret = 0;
 	struct ftrace_graph_data *fgd = file->private_data;
 
 	if (!cnt)
 		return 0;
 
-	mutex_lock(&graph_lock);
-
-	if (trace_parser_get_init(&parser, FTRACE_BUFF_MAX)) {
-		ret = -ENOMEM;
-		goto out_unlock;
-	}
+	if (trace_parser_get_init(&parser, FTRACE_BUFF_MAX))
+		return -ENOMEM;
 
 	read = trace_get_user(&parser, ubuf, cnt, ppos);
 
 	if (read >= 0 && trace_parser_loaded((&parser))) {
 		parser.buffer[parser.idx] = 0;
 
+		mutex_lock(&graph_lock);
+
 		/* we allow only one expression at a time */
 		ret = ftrace_set_func(fgd->table, fgd->count, fgd->size,
 				      parser.buffer);
-		if (ret)
-			goto out_free;
+
+		mutex_unlock(&graph_lock);
 	}
 
-	ret = read;
+	if (!ret)
+		ret = read;
 
-out_free:
 	trace_parser_put(&parser);
-out_unlock:
-	mutex_unlock(&graph_lock);
 
 	return ret;
 }
-- 
cgit 


From 29ad23b00474c34e3b5040dda508c78d33a1a3eb Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Mon, 14 Oct 2013 17:24:26 +0900
Subject: ftrace: Add set_graph_notrace filter

The set_graph_notrace filter is analogous to set_ftrace_notrace and
can be used for eliminating uninteresting part of function graph trace
output.  It also works with set_graph_function nicely.

  # cd /sys/kernel/debug/tracing/
  # echo do_page_fault > set_graph_function
  # perf ftrace live true
   2)               |  do_page_fault() {
   2)               |    __do_page_fault() {
   2)   0.381 us    |      down_read_trylock();
   2)   0.055 us    |      __might_sleep();
   2)   0.696 us    |      find_vma();
   2)               |      handle_mm_fault() {
   2)               |        handle_pte_fault() {
   2)               |          __do_fault() {
   2)               |            filemap_fault() {
   2)               |              find_get_page() {
   2)   0.033 us    |                __rcu_read_lock();
   2)   0.035 us    |                __rcu_read_unlock();
   2)   1.696 us    |              }
   2)   0.031 us    |              __might_sleep();
   2)   2.831 us    |            }
   2)               |            _raw_spin_lock() {
   2)   0.046 us    |              add_preempt_count();
   2)   0.841 us    |            }
   2)   0.033 us    |            page_add_file_rmap();
   2)               |            _raw_spin_unlock() {
   2)   0.057 us    |              sub_preempt_count();
   2)   0.568 us    |            }
   2)               |            unlock_page() {
   2)   0.084 us    |              page_waitqueue();
   2)   0.126 us    |              __wake_up_bit();
   2)   1.117 us    |            }
   2)   7.729 us    |          }
   2)   8.397 us    |        }
   2)   8.956 us    |      }
   2)   0.085 us    |      up_read();
   2) + 12.745 us   |    }
   2) + 13.401 us   |  }
  ...

  # echo handle_mm_fault > set_graph_notrace
  # perf ftrace live true
   1)               |  do_page_fault() {
   1)               |    __do_page_fault() {
   1)   0.205 us    |      down_read_trylock();
   1)   0.041 us    |      __might_sleep();
   1)   0.344 us    |      find_vma();
   1)   0.069 us    |      up_read();
   1)   4.692 us    |    }
   1)   5.311 us    |  }
  ...

Link: http://lkml.kernel.org/r/1381739066-7531-5-git-send-email-namhyung@kernel.org

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 include/linux/ftrace.h               |  1 +
 kernel/trace/ftrace.c                | 33 +++++++++++++++++++++
 kernel/trace/trace.h                 | 22 ++++++++++++++
 kernel/trace/trace_functions_graph.c | 56 ++++++++++++++++++++++++++++++++++--
 4 files changed, 109 insertions(+), 3 deletions(-)

diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 9f15c0064c50..ec85d48619e1 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -721,6 +721,7 @@ ftrace_push_return_trace(unsigned long ret, unsigned long func, int *depth,
 extern char __irqentry_text_start[];
 extern char __irqentry_text_end[];
 
+#define FTRACE_NOTRACE_DEPTH 65536
 #define FTRACE_RETFUNC_DEPTH 50
 #define FTRACE_RETSTACK_ALLOC_SIZE 32
 extern int register_ftrace_graph(trace_func_graph_ret_t retfunc,
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 26a229ab0c19..44e826a79665 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -3776,7 +3776,9 @@ static const struct file_operations ftrace_notrace_fops = {
 static DEFINE_MUTEX(graph_lock);
 
 int ftrace_graph_count;
+int ftrace_graph_notrace_count;
 unsigned long ftrace_graph_funcs[FTRACE_GRAPH_MAX_FUNCS] __read_mostly;
+unsigned long ftrace_graph_notrace_funcs[FTRACE_GRAPH_MAX_FUNCS] __read_mostly;
 
 struct ftrace_graph_data {
 	unsigned long *table;
@@ -3890,6 +3892,26 @@ ftrace_graph_open(struct inode *inode, struct file *file)
 	return __ftrace_graph_open(inode, file, fgd);
 }
 
+static int
+ftrace_graph_notrace_open(struct inode *inode, struct file *file)
+{
+	struct ftrace_graph_data *fgd;
+
+	if (unlikely(ftrace_disabled))
+		return -ENODEV;
+
+	fgd = kmalloc(sizeof(*fgd), GFP_KERNEL);
+	if (fgd == NULL)
+		return -ENOMEM;
+
+	fgd->table = ftrace_graph_notrace_funcs;
+	fgd->size = FTRACE_GRAPH_MAX_FUNCS;
+	fgd->count = &ftrace_graph_notrace_count;
+	fgd->seq_ops = &ftrace_graph_seq_ops;
+
+	return __ftrace_graph_open(inode, file, fgd);
+}
+
 static int
 ftrace_graph_release(struct inode *inode, struct file *file)
 {
@@ -4011,6 +4033,14 @@ static const struct file_operations ftrace_graph_fops = {
 	.llseek		= ftrace_filter_lseek,
 	.release	= ftrace_graph_release,
 };
+
+static const struct file_operations ftrace_graph_notrace_fops = {
+	.open		= ftrace_graph_notrace_open,
+	.read		= seq_read,
+	.write		= ftrace_graph_write,
+	.llseek		= ftrace_filter_lseek,
+	.release	= ftrace_graph_release,
+};
 #endif /* CONFIG_FUNCTION_GRAPH_TRACER */
 
 static __init int ftrace_init_dyn_debugfs(struct dentry *d_tracer)
@@ -4032,6 +4062,9 @@ static __init int ftrace_init_dyn_debugfs(struct dentry *d_tracer)
 	trace_create_file("set_graph_function", 0444, d_tracer,
 				    NULL,
 				    &ftrace_graph_fops);
+	trace_create_file("set_graph_notrace", 0444, d_tracer,
+				    NULL,
+				    &ftrace_graph_notrace_fops);
 #endif /* CONFIG_FUNCTION_GRAPH_TRACER */
 
 	return 0;
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 40211cef2796..d1cf5159bec0 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -732,6 +732,8 @@ extern void __trace_graph_return(struct trace_array *tr,
 #define FTRACE_GRAPH_MAX_FUNCS		32
 extern int ftrace_graph_count;
 extern unsigned long ftrace_graph_funcs[FTRACE_GRAPH_MAX_FUNCS];
+extern int ftrace_graph_notrace_count;
+extern unsigned long ftrace_graph_notrace_funcs[FTRACE_GRAPH_MAX_FUNCS];
 
 static inline int ftrace_graph_addr(unsigned long addr)
 {
@@ -757,11 +759,31 @@ static inline int ftrace_graph_addr(unsigned long addr)
 
 	return 0;
 }
+
+static inline int ftrace_graph_notrace_addr(unsigned long addr)
+{
+	int i;
+
+	if (!ftrace_graph_notrace_count)
+		return 0;
+
+	for (i = 0; i < ftrace_graph_notrace_count; i++) {
+		if (addr == ftrace_graph_notrace_funcs[i])
+			return 1;
+	}
+
+	return 0;
+}
 #else
 static inline int ftrace_graph_addr(unsigned long addr)
 {
 	return 1;
 }
+
+static inline int ftrace_graph_notrace_addr(unsigned long addr)
+{
+	return 0;
+}
 #endif /* CONFIG_DYNAMIC_FTRACE */
 #else /* CONFIG_FUNCTION_GRAPH_TRACER */
 static inline enum print_line_t
diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
index b5c09242683d..e08c030b8f38 100644
--- a/kernel/trace/trace_functions_graph.c
+++ b/kernel/trace/trace_functions_graph.c
@@ -114,16 +114,37 @@ ftrace_push_return_trace(unsigned long ret, unsigned long func, int *depth,
 		return -EBUSY;
 	}
 
+	/*
+	 * The curr_ret_stack is an index to ftrace return stack of
+	 * current task.  Its value should be in [0, FTRACE_RETFUNC_
+	 * DEPTH) when the function graph tracer is used.  To support
+	 * filtering out specific functions, it makes the index
+	 * negative by subtracting huge value (FTRACE_NOTRACE_DEPTH)
+	 * so when it sees a negative index the ftrace will ignore
+	 * the record.  And the index gets recovered when returning
+	 * from the filtered function by adding the FTRACE_NOTRACE_
+	 * DEPTH and then it'll continue to record functions normally.
+	 *
+	 * The curr_ret_stack is initialized to -1 and get increased
+	 * in this function.  So it can be less than -1 only if it was
+	 * filtered out via ftrace_graph_notrace_addr() which can be
+	 * set from set_graph_notrace file in debugfs by user.
+	 */
+	if (current->curr_ret_stack < -1)
+		return -EBUSY;
+
 	calltime = trace_clock_local();
 
 	index = ++current->curr_ret_stack;
+	if (ftrace_graph_notrace_addr(func))
+		current->curr_ret_stack -= FTRACE_NOTRACE_DEPTH;
 	barrier();
 	current->ret_stack[index].ret = ret;
 	current->ret_stack[index].func = func;
 	current->ret_stack[index].calltime = calltime;
 	current->ret_stack[index].subtime = 0;
 	current->ret_stack[index].fp = frame_pointer;
-	*depth = index;
+	*depth = current->curr_ret_stack;
 
 	return 0;
 }
@@ -137,7 +158,17 @@ ftrace_pop_return_trace(struct ftrace_graph_ret *trace, unsigned long *ret,
 
 	index = current->curr_ret_stack;
 
-	if (unlikely(index < 0)) {
+	/*
+	 * A negative index here means that it's just returned from a
+	 * notrace'd function.  Recover index to get an original
+	 * return address.  See ftrace_push_return_trace().
+	 *
+	 * TODO: Need to check whether the stack gets corrupted.
+	 */
+	if (index < 0)
+		index += FTRACE_NOTRACE_DEPTH;
+
+	if (unlikely(index < 0 || index >= FTRACE_RETFUNC_DEPTH)) {
 		ftrace_graph_stop();
 		WARN_ON(1);
 		/* Might as well panic, otherwise we have no where to go */
@@ -193,6 +224,15 @@ unsigned long ftrace_return_to_handler(unsigned long frame_pointer)
 	trace.rettime = trace_clock_local();
 	barrier();
 	current->curr_ret_stack--;
+	/*
+	 * The curr_ret_stack can be less than -1 only if it was
+	 * filtered out and it's about to return from the function.
+	 * Recover the index and continue to trace normal functions.
+	 */
+	if (current->curr_ret_stack < -1) {
+		current->curr_ret_stack += FTRACE_NOTRACE_DEPTH;
+		return ret;
+	}
 
 	/*
 	 * The trace should run after decrementing the ret counter
@@ -259,10 +299,20 @@ int trace_graph_entry(struct ftrace_graph_ent *trace)
 
 	/* trace it when it is-nested-in or is a function enabled. */
 	if ((!(trace->depth || ftrace_graph_addr(trace->func)) ||
-	     ftrace_graph_ignore_irqs()) ||
+	     ftrace_graph_ignore_irqs()) || (trace->depth < 0) ||
 	    (max_depth && trace->depth >= max_depth))
 		return 0;
 
+	/*
+	 * Do not trace a function if it's filtered by set_graph_notrace.
+	 * Make the index of ret stack negative to indicate that it should
+	 * ignore further functions.  But it needs its own ret stack entry
+	 * to recover the original index in order to continue tracing after
+	 * returning from the function.
+	 */
+	if (ftrace_graph_notrace_addr(trace->func))
+		return 1;
+
 	local_irq_save(flags);
 	cpu = raw_smp_processor_id();
 	data = per_cpu_ptr(tr->trace_buffer.data, cpu);
-- 
cgit 


From fd2f3b7ee1cf4b5fa77659c5ed4aa3cf5d1b3731 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Fri, 18 Oct 2013 17:36:16 -0700
Subject: irq: DocBook/genericirq.tmpl: Correct various typos

Typo corrections for DocBook/genericirq.tmpl.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: http://lkml.kernel.org/r/5261D400.30400@infradead.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 Documentation/DocBook/genericirq.tmpl | 64 +++++++++++++++++------------------
 1 file changed, 32 insertions(+), 32 deletions(-)

diff --git a/Documentation/DocBook/genericirq.tmpl b/Documentation/DocBook/genericirq.tmpl
index d16d21b7a3b7..46347f603353 100644
--- a/Documentation/DocBook/genericirq.tmpl
+++ b/Documentation/DocBook/genericirq.tmpl
@@ -87,7 +87,7 @@
   <chapter id="rationale">
     <title>Rationale</title>
 	<para>
-	The original implementation of interrupt handling in Linux is using
+	The original implementation of interrupt handling in Linux uses
 	the __do_IRQ() super-handler, which is able to deal with every
 	type of interrupt logic.
 	</para>
@@ -111,19 +111,19 @@
 	</itemizedlist>
 	</para>
 	<para>
-	This split implementation of highlevel IRQ handlers allows us to
+	This split implementation of high-level IRQ handlers allows us to
 	optimize the flow of the interrupt handling for each specific
-	interrupt type. This reduces complexity in that particular codepath
+	interrupt type. This reduces complexity in that particular code path
 	and allows the optimized handling of a given type.
 	</para>
 	<para>
 	The original general IRQ implementation used hw_interrupt_type
 	structures and their ->ack(), ->end() [etc.] callbacks to
 	differentiate the flow control in the super-handler. This leads to
-	a mix of flow logic and lowlevel hardware logic, and it also leads
-	to unnecessary code duplication: for example in i386, there is a
-	ioapic_level_irq and a ioapic_edge_irq irq-type which share many
-	of the lowlevel details but have different flow handling.
+	a mix of flow logic and low-level hardware logic, and it also leads
+	to unnecessary code duplication: for example in i386, there is an
+	ioapic_level_irq and an ioapic_edge_irq IRQ-type which share many
+	of the low-level details but have different flow handling.
 	</para>
 	<para>
 	A more natural abstraction is the clean separation of the
@@ -132,23 +132,23 @@
 	<para>
 	Analysing a couple of architecture's IRQ subsystem implementations
 	reveals that most of them can use a generic set of 'irq flow'
-	methods and only need to add the chip level specific code.
+	methods and only need to add the chip-level specific code.
 	The separation is also valuable for (sub)architectures
-	which need specific quirks in the irq flow itself but not in the
-	chip-details - and thus provides a more transparent IRQ subsystem
+	which need specific quirks in the IRQ flow itself but not in the
+	chip details - and thus provides a more transparent IRQ subsystem
 	design.
 	</para>
 	<para>
-	Each interrupt descriptor is assigned its own highlevel flow
+	Each interrupt descriptor is assigned its own high-level flow
 	handler, which is normally one of the generic
-	implementations. (This highlevel flow handler implementation also
+	implementations. (This high-level flow handler implementation also
 	makes it simple to provide demultiplexing handlers which can be
 	found in embedded platforms on various architectures.)
 	</para>
 	<para>
 	The separation makes the generic interrupt handling layer more
 	flexible and extensible. For example, an (sub)architecture can
-	use a generic irq-flow implementation for 'level type' interrupts
+	use a generic IRQ-flow implementation for 'level type' interrupts
 	and add a (sub)architecture specific 'edge type' implementation.
 	</para>
 	<para>
@@ -172,9 +172,9 @@
     <para>
 	There are three main levels of abstraction in the interrupt code:
 	<orderedlist>
-	  <listitem><para>Highlevel driver API</para></listitem>
-	  <listitem><para>Highlevel IRQ flow handlers</para></listitem>
-	  <listitem><para>Chiplevel hardware encapsulation</para></listitem>
+	  <listitem><para>High-level driver API</para></listitem>
+	  <listitem><para>High-level IRQ flow handlers</para></listitem>
+	  <listitem><para>Chip-level hardware encapsulation</para></listitem>
 	</orderedlist>
     </para>
     <sect1 id="Interrupt_control_flow">
@@ -189,16 +189,16 @@
 	which are assigned to this interrupt.
 	</para>
 	<para>
-	Whenever an interrupt triggers, the lowlevel arch code calls into
-	the generic interrupt code by calling desc->handle_irq().
-	This highlevel IRQ handling function only uses desc->irq_data.chip
+	Whenever an interrupt triggers, the low-level architecture code calls
+	into the generic interrupt code by calling desc->handle_irq().
+	This high-level IRQ handling function only uses desc->irq_data.chip
 	primitives referenced by the assigned chip descriptor structure.
 	</para>
     </sect1>
     <sect1 id="Highlevel_Driver_API">
-	<title>Highlevel Driver API</title>
+	<title>High-level Driver API</title>
 	<para>
-	  The highlevel Driver API consists of following functions:
+	  The high-level Driver API consists of following functions:
 	  <itemizedlist>
 	  <listitem><para>request_irq()</para></listitem>
 	  <listitem><para>free_irq()</para></listitem>
@@ -216,7 +216,7 @@
 	</para>
     </sect1>
     <sect1 id="Highlevel_IRQ_flow_handlers">
-	<title>Highlevel IRQ flow handlers</title>
+	<title>High-level IRQ flow handlers</title>
 	<para>
 	  The generic layer provides a set of pre-defined irq-flow methods:
 	  <itemizedlist>
@@ -228,7 +228,7 @@
 	  <listitem><para>handle_edge_eoi_irq</para></listitem>
 	  <listitem><para>handle_bad_irq</para></listitem>
 	  </itemizedlist>
-	  The interrupt flow handlers (either predefined or architecture
+	  The interrupt flow handlers (either pre-defined or architecture
 	  specific) are assigned to specific interrupts by the architecture
 	  either during bootup or during device initialization.
 	</para>
@@ -297,7 +297,7 @@ desc->irq_data.chip->irq_unmask();
 		<para>
 		handle_fasteoi_irq provides a generic implementation
 		for interrupts, which only need an EOI at the end of
-		the handler
+		the handler.
 		</para>
 		<para>
 		The following control flow is implemented (simplified excerpt):
@@ -394,7 +394,7 @@ if (desc->irq_data.chip->irq_eoi)
 	The generic functions are intended for 'clean' architectures and chips,
 	which have no platform-specific IRQ handling quirks. If an architecture
 	needs to implement quirks on the 'flow' level then it can do so by
-	overriding the highlevel irq-flow handler.
+	overriding the high-level irq-flow handler.
 	</para>
 	</sect2>
 	<sect2 id="Delayed_interrupt_disable">
@@ -419,9 +419,9 @@ if (desc->irq_data.chip->irq_eoi)
 	</sect2>
     </sect1>
     <sect1 id="Chiplevel_hardware_encapsulation">
-	<title>Chiplevel hardware encapsulation</title>
+	<title>Chip-level hardware encapsulation</title>
 	<para>
-	The chip level hardware descriptor structure irq_chip
+	The chip-level hardware descriptor structure irq_chip
 	contains all the direct chip relevant functions, which
 	can be utilized by the irq flow implementations.
 	  <itemizedlist>
@@ -429,14 +429,14 @@ if (desc->irq_data.chip->irq_eoi)
 	  <listitem><para>irq_mask_ack() - Optional, recommended for performance</para></listitem>
 	  <listitem><para>irq_mask()</para></listitem>
 	  <listitem><para>irq_unmask()</para></listitem>
-	  <listitem><para>irq_eoi() - Optional, required for eoi flow handlers</para></listitem>
+	  <listitem><para>irq_eoi() - Optional, required for EOI flow handlers</para></listitem>
 	  <listitem><para>irq_retrigger() - Optional</para></listitem>
 	  <listitem><para>irq_set_type() - Optional</para></listitem>
 	  <listitem><para>irq_set_wake() - Optional</para></listitem>
 	  </itemizedlist>
 	These primitives are strictly intended to mean what they say: ack means
 	ACK, masking means masking of an IRQ line, etc. It is up to the flow
-	handler(s) to use these basic units of lowlevel functionality.
+	handler(s) to use these basic units of low-level functionality.
 	</para>
     </sect1>
   </chapter>
@@ -445,7 +445,7 @@ if (desc->irq_data.chip->irq_eoi)
      <title>__do_IRQ entry point</title>
      <para>
 	The original implementation __do_IRQ() was an alternative entry
-	point for all types of interrupts. It not longer exists.
+	point for all types of interrupts. It no longer exists.
      </para>
      <para>
 	This handler turned out to be not suitable for all
@@ -468,11 +468,11 @@ if (desc->irq_data.chip->irq_eoi)
   <chapter id="genericchip">
      <title>Generic interrupt chip</title>
      <para>
-       To avoid copies of identical implementations of irq chips the
+       To avoid copies of identical implementations of IRQ chips the
        core provides a configurable generic interrupt chip
        implementation. Developers should check carefuly whether the
        generic chip fits their needs before implementing the same
-       functionality slightly different themself.
+       functionality slightly differently themselves.
      </para>
 !Ekernel/irq/generic-chip.c
   </chapter>
-- 
cgit 


From 679ee475a1c19243c8f50a5a76f6b7519b24c1a3 Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Mon, 7 Oct 2013 10:53:57 -0500
Subject: usb: wusbcore: serialize access to the HWA data out endpoint

This patch serializes access to the HWA data transfer out (DTO)
endpoint.  This prevents a situation where two transfer requests being
sent concurrently to separate downstream endpoints could interleave
their transfer request and transfer data packets causing data
corruption.  The transfer processing code will now attempt to acquire
the DTO resource before sending a transfer to the HWA.  If it cannot
acquire the resource, the RPIPE that the transfer is assigned to will
be placed on a waiting list.  When the DTO resource is released, the
actor releasing the resource will serivce the RPIPEs that are waiting.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/wa-hc.h    |  10 ++-
 drivers/usb/wusbcore/wa-rpipe.c |   9 +--
 drivers/usb/wusbcore/wa-xfer.c  | 154 ++++++++++++++++++++++++++++++++++++----
 3 files changed, 152 insertions(+), 21 deletions(-)

diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h
index b44aca3f25dd..41afaa6d01d2 100644
--- a/drivers/usb/wusbcore/wa-hc.h
+++ b/drivers/usb/wusbcore/wa-hc.h
@@ -117,6 +117,7 @@ struct wa_rpipe {
 	struct wahc *wa;
 	spinlock_t seg_lock;
 	struct list_head seg_list;
+	struct list_head list_node;
 	atomic_t segs_available;
 	u8 buffer[1];	/* For reads/writes on USB */
 };
@@ -183,7 +184,8 @@ struct wahc {
 
 	u16 rpipes;
 	unsigned long *rpipe_bm;	/* rpipe usage bitmap */
-	spinlock_t rpipe_bm_lock;	/* protect rpipe_bm */
+	struct list_head rpipe_delayed_list;	/* delayed RPIPES. */
+	spinlock_t rpipe_lock;	/* protect rpipe_bm and delayed list */
 	struct mutex rpipe_mutex;	/* assigning resources to endpoints */
 
 	/*
@@ -201,6 +203,8 @@ struct wahc {
 	void *dti_buf;
 	size_t dti_buf_size;
 
+	unsigned long dto_in_use;	/* protect dto endoint serialization. */
+
 	s32 status;			/* For reading status */
 
 	struct list_head xfer_list;
@@ -253,7 +257,8 @@ static inline void wa_nep_disarm(struct wahc *wa)
 /* RPipes */
 static inline void wa_rpipe_init(struct wahc *wa)
 {
-	spin_lock_init(&wa->rpipe_bm_lock);
+	INIT_LIST_HEAD(&wa->rpipe_delayed_list);
+	spin_lock_init(&wa->rpipe_lock);
 	mutex_init(&wa->rpipe_mutex);
 }
 
@@ -270,6 +275,7 @@ static inline void wa_init(struct wahc *wa)
 	spin_lock_init(&wa->xfer_list_lock);
 	INIT_WORK(&wa->xfer_enqueue_work, wa_urb_enqueue_run);
 	INIT_WORK(&wa->xfer_error_work, wa_process_errored_transfers_run);
+	wa->dto_in_use = 0;
 	atomic_set(&wa->xfer_id_count, 1);
 }
 
diff --git a/drivers/usb/wusbcore/wa-rpipe.c b/drivers/usb/wusbcore/wa-rpipe.c
index 554b16bd22f1..50de1d2c7b72 100644
--- a/drivers/usb/wusbcore/wa-rpipe.c
+++ b/drivers/usb/wusbcore/wa-rpipe.c
@@ -143,17 +143,18 @@ static void rpipe_init(struct wa_rpipe *rpipe)
 	kref_init(&rpipe->refcnt);
 	spin_lock_init(&rpipe->seg_lock);
 	INIT_LIST_HEAD(&rpipe->seg_list);
+	INIT_LIST_HEAD(&rpipe->list_node);
 }
 
 static unsigned rpipe_get_idx(struct wahc *wa, unsigned rpipe_idx)
 {
 	unsigned long flags;
 
-	spin_lock_irqsave(&wa->rpipe_bm_lock, flags);
+	spin_lock_irqsave(&wa->rpipe_lock, flags);
 	rpipe_idx = find_next_zero_bit(wa->rpipe_bm, wa->rpipes, rpipe_idx);
 	if (rpipe_idx < wa->rpipes)
 		set_bit(rpipe_idx, wa->rpipe_bm);
-	spin_unlock_irqrestore(&wa->rpipe_bm_lock, flags);
+	spin_unlock_irqrestore(&wa->rpipe_lock, flags);
 
 	return rpipe_idx;
 }
@@ -162,9 +163,9 @@ static void rpipe_put_idx(struct wahc *wa, unsigned rpipe_idx)
 {
 	unsigned long flags;
 
-	spin_lock_irqsave(&wa->rpipe_bm_lock, flags);
+	spin_lock_irqsave(&wa->rpipe_lock, flags);
 	clear_bit(rpipe_idx, wa->rpipe_bm);
-	spin_unlock_irqrestore(&wa->rpipe_bm_lock, flags);
+	spin_unlock_irqrestore(&wa->rpipe_lock, flags);
 }
 
 void rpipe_destroy(struct kref *_rpipe)
diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index fd00e1aaccf4..f1e9a386beca 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -107,6 +107,7 @@ enum wa_seg_status {
 };
 
 static void wa_xfer_delayed_run(struct wa_rpipe *);
+static int __wa_xfer_delayed_run(struct wa_rpipe *rpipe, int *dto_waiting);
 
 /*
  * Life cycle governed by 'struct urb' (the refcount of the struct is
@@ -203,6 +204,59 @@ static void wa_xfer_put(struct wa_xfer *xfer)
 	kref_put(&xfer->refcnt, wa_xfer_destroy);
 }
 
+/*
+ * Try to get exclusive access to the DTO endpoint resource.  Return true
+ * if successful.
+ */
+static inline int __wa_dto_try_get(struct wahc *wa)
+{
+	return (test_and_set_bit(0, &wa->dto_in_use) == 0);
+}
+
+/* Release the DTO endpoint resource. */
+static inline void __wa_dto_put(struct wahc *wa)
+{
+	clear_bit_unlock(0, &wa->dto_in_use);
+}
+
+/* Service RPIPEs that are waiting on the DTO resource. */
+static void wa_check_for_delayed_rpipes(struct wahc *wa)
+{
+	unsigned long flags;
+	int dto_waiting = 0;
+	struct wa_rpipe *rpipe;
+
+	spin_lock_irqsave(&wa->rpipe_lock, flags);
+	while (!list_empty(&wa->rpipe_delayed_list) && !dto_waiting) {
+		rpipe = list_first_entry(&wa->rpipe_delayed_list,
+				struct wa_rpipe, list_node);
+		__wa_xfer_delayed_run(rpipe, &dto_waiting);
+		/* remove this RPIPE from the list if it is not waiting. */
+		if (!dto_waiting) {
+			pr_debug("%s: RPIPE %d serviced and removed from delayed list.\n",
+				__func__,
+				le16_to_cpu(rpipe->descr.wRPipeIndex));
+			list_del_init(&rpipe->list_node);
+		}
+	}
+	spin_unlock_irqrestore(&wa->rpipe_lock, flags);
+}
+
+/* add this RPIPE to the end of the delayed RPIPE list. */
+static void wa_add_delayed_rpipe(struct wahc *wa, struct wa_rpipe *rpipe)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&wa->rpipe_lock, flags);
+	/* add rpipe to the list if it is not already on it. */
+	if (list_empty(&rpipe->list_node)) {
+		pr_debug("%s: adding RPIPE %d to the delayed list.\n",
+			__func__, le16_to_cpu(rpipe->descr.wRPipeIndex));
+		list_add_tail(&rpipe->list_node, &wa->rpipe_delayed_list);
+	}
+	spin_unlock_irqrestore(&wa->rpipe_lock, flags);
+}
+
 /*
  * xfer is referenced
  *
@@ -1099,9 +1153,13 @@ error_setup_sizes:
  * rpipe->seg_lock is held!
  */
 static int __wa_seg_submit(struct wa_rpipe *rpipe, struct wa_xfer *xfer,
-			   struct wa_seg *seg)
+			   struct wa_seg *seg, int *dto_done)
 {
 	int result;
+
+	/* default to done unless we encounter a multi-frame isoc segment. */
+	*dto_done = 1;
+
 	/* submit the transfer request. */
 	result = usb_submit_urb(&seg->tr_urb, GFP_ATOMIC);
 	if (result < 0) {
@@ -1142,28 +1200,34 @@ error_seg_submit:
 }
 
 /*
- * Execute more queued request segments until the maximum concurrent allowed
+ * Execute more queued request segments until the maximum concurrent allowed.
+ * Return true if the DTO resource was acquired and released.
  *
  * The ugly unlock/lock sequence on the error path is needed as the
  * xfer->lock normally nests the seg_lock and not viceversa.
- *
  */
-static void wa_xfer_delayed_run(struct wa_rpipe *rpipe)
+static int __wa_xfer_delayed_run(struct wa_rpipe *rpipe, int *dto_waiting)
 {
-	int result;
+	int result, dto_acquired = 0, dto_done = 0;
 	struct device *dev = &rpipe->wa->usb_iface->dev;
 	struct wa_seg *seg;
 	struct wa_xfer *xfer;
 	unsigned long flags;
 
+	*dto_waiting = 0;
+
 	spin_lock_irqsave(&rpipe->seg_lock, flags);
 	while (atomic_read(&rpipe->segs_available) > 0
-	      && !list_empty(&rpipe->seg_list)) {
+	      && !list_empty(&rpipe->seg_list)
+	      && (dto_acquired = __wa_dto_try_get(rpipe->wa))) {
 		seg = list_first_entry(&(rpipe->seg_list), struct wa_seg,
 				 list_node);
 		list_del(&seg->list_node);
 		xfer = seg->xfer;
-		result = __wa_seg_submit(rpipe, xfer, seg);
+		result = __wa_seg_submit(rpipe, xfer, seg, &dto_done);
+		/* release the dto resource if this RPIPE is done with it. */
+		if (dto_done)
+			__wa_dto_put(rpipe->wa);
 		dev_dbg(dev, "xfer %p ID %08X#%u submitted from delayed [%d segments available] %d\n",
 			xfer, wa_xfer_id(xfer), seg->index,
 			atomic_read(&rpipe->segs_available), result);
@@ -1176,7 +1240,37 @@ static void wa_xfer_delayed_run(struct wa_rpipe *rpipe)
 			spin_lock_irqsave(&rpipe->seg_lock, flags);
 		}
 	}
+	/*
+	 * Mark this RPIPE as waiting if dto was not acquired, there are
+	 * delayed segs and no active transfers to wake us up later.
+	 */
+	if (!dto_acquired && !list_empty(&rpipe->seg_list)
+		&& (atomic_read(&rpipe->segs_available) ==
+			le16_to_cpu(rpipe->descr.wRequests)))
+		*dto_waiting = 1;
+
 	spin_unlock_irqrestore(&rpipe->seg_lock, flags);
+
+	return dto_done;
+}
+
+static void wa_xfer_delayed_run(struct wa_rpipe *rpipe)
+{
+	int dto_waiting;
+	int dto_done = __wa_xfer_delayed_run(rpipe, &dto_waiting);
+
+	/*
+	 * If this RPIPE is waiting on the DTO resource, add it to the tail of
+	 * the waiting list.
+	 * Otherwise, if the WA DTO resource was acquired and released by
+	 *  __wa_xfer_delayed_run, another RPIPE may have attempted to acquire
+	 * DTO and failed during that time.  Check the delayed list and process
+	 * any waiters.  Start searching from the next RPIPE index.
+	 */
+	if (dto_waiting)
+		wa_add_delayed_rpipe(rpipe->wa, rpipe);
+	else if (dto_done)
+		wa_check_for_delayed_rpipes(rpipe->wa);
 }
 
 /*
@@ -1188,7 +1282,7 @@ static void wa_xfer_delayed_run(struct wa_rpipe *rpipe)
  */
 static int __wa_xfer_submit(struct wa_xfer *xfer)
 {
-	int result;
+	int result, dto_acquired = 0, dto_done = 0, dto_waiting = 0;
 	struct wahc *wa = xfer->wa;
 	struct device *dev = &wa->usb_iface->dev;
 	unsigned cnt;
@@ -1207,26 +1301,56 @@ static int __wa_xfer_submit(struct wa_xfer *xfer)
 	result = 0;
 	spin_lock_irqsave(&rpipe->seg_lock, flags);
 	for (cnt = 0; cnt < xfer->segs; cnt++) {
+		int delay_seg = 1;
+
 		available = atomic_read(&rpipe->segs_available);
 		empty = list_empty(&rpipe->seg_list);
 		seg = xfer->seg[cnt];
 		dev_dbg(dev, "xfer %p ID 0x%08X#%u: available %u empty %u (%s)\n",
 			xfer, wa_xfer_id(xfer), cnt, available, empty,
 			available == 0 || !empty ? "delayed" : "submitted");
-		if (available == 0 || !empty) {
+		if (available && empty) {
+			/*
+			 * Only attempt to acquire DTO if we have a segment
+			 * to send.
+			 */
+			dto_acquired = __wa_dto_try_get(rpipe->wa);
+			if (dto_acquired) {
+				delay_seg = 0;
+				result = __wa_seg_submit(rpipe, xfer, seg,
+							&dto_done);
+				if (dto_done)
+					__wa_dto_put(rpipe->wa);
+
+				if (result < 0) {
+					__wa_xfer_abort(xfer);
+					goto error_seg_submit;
+				}
+			}
+		}
+
+		if (delay_seg) {
 			seg->status = WA_SEG_DELAYED;
 			list_add_tail(&seg->list_node, &rpipe->seg_list);
-		} else {
-			result = __wa_seg_submit(rpipe, xfer, seg);
-			if (result < 0) {
-				__wa_xfer_abort(xfer);
-				goto error_seg_submit;
-			}
 		}
 		xfer->segs_submitted++;
 	}
 error_seg_submit:
+	/*
+	 * Mark this RPIPE as waiting if dto was not acquired, there are
+	 * delayed segs and no active transfers to wake us up later.
+	 */
+	if (!dto_acquired && !list_empty(&rpipe->seg_list)
+		&& (atomic_read(&rpipe->segs_available) ==
+			le16_to_cpu(rpipe->descr.wRequests)))
+		dto_waiting = 1;
 	spin_unlock_irqrestore(&rpipe->seg_lock, flags);
+
+	if (dto_waiting)
+		wa_add_delayed_rpipe(rpipe->wa, rpipe);
+	else if (dto_done)
+		wa_check_for_delayed_rpipes(rpipe->wa);
+
 	return result;
 }
 
-- 
cgit 


From 1653d2f88f43f6780eace1faeeb7b7adde8c10fb Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Mon, 7 Oct 2013 10:07:51 -0500
Subject: usb: wusbcore: preserve endianness of cached descriptors

Do not overwrite the multi-byte fields of usb_wa_descriptor with their
cpu format values after reading the descriptor.  Leave the values as
__le16 and swap on use.  This is more consistent with other uses of USB
descriptors.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/hwa-hc.c       | 10 +++-------
 drivers/usb/wusbcore/wa-rpipe.c |  2 +-
 include/linux/usb/wusb-wa.h     |  6 +++---
 3 files changed, 7 insertions(+), 11 deletions(-)

diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c
index e58b92491eb1..e5fb3cfd57a9 100644
--- a/drivers/usb/host/hwa-hc.c
+++ b/drivers/usb/host/hwa-hc.c
@@ -570,14 +570,10 @@ found:
 		goto error;
 	}
 	wa->wa_descr = wa_descr = (struct usb_wa_descriptor *) hdr;
-	/* Make LE fields CPU order */
-	wa_descr->bcdWAVersion = le16_to_cpu(wa_descr->bcdWAVersion);
-	wa_descr->wNumRPipes = le16_to_cpu(wa_descr->wNumRPipes);
-	wa_descr->wRPipeMaxBlock = le16_to_cpu(wa_descr->wRPipeMaxBlock);
-	if (wa_descr->bcdWAVersion > 0x0100)
+	if (le16_to_cpu(wa_descr->bcdWAVersion) > 0x0100)
 		dev_warn(dev, "Wire Adapter v%d.%d newer than groked v1.0\n",
-			 wa_descr->bcdWAVersion & 0xff00 >> 8,
-			 wa_descr->bcdWAVersion & 0x00ff);
+			 le16_to_cpu(wa_descr->bcdWAVersion) & 0xff00 >> 8,
+			 le16_to_cpu(wa_descr->bcdWAVersion) & 0x00ff);
 	result = 0;
 error:
 	return result;
diff --git a/drivers/usb/wusbcore/wa-rpipe.c b/drivers/usb/wusbcore/wa-rpipe.c
index 50de1d2c7b72..1ed068accb76 100644
--- a/drivers/usb/wusbcore/wa-rpipe.c
+++ b/drivers/usb/wusbcore/wa-rpipe.c
@@ -480,7 +480,7 @@ error:
  */
 int wa_rpipes_create(struct wahc *wa)
 {
-	wa->rpipes = wa->wa_descr->wNumRPipes;
+	wa->rpipes = le16_to_cpu(wa->wa_descr->wNumRPipes);
 	wa->rpipe_bm = kzalloc(BITS_TO_LONGS(wa->rpipes)*sizeof(unsigned long),
 			       GFP_KERNEL);
 	if (wa->rpipe_bm == NULL)
diff --git a/include/linux/usb/wusb-wa.h b/include/linux/usb/wusb-wa.h
index 9ae7e299bf77..c1257130769b 100644
--- a/include/linux/usb/wusb-wa.h
+++ b/include/linux/usb/wusb-wa.h
@@ -279,11 +279,11 @@ struct wa_xfer_result {
 struct usb_wa_descriptor {
 	u8	bLength;
 	u8	bDescriptorType;
-	u16	bcdWAVersion;
+	__le16	bcdWAVersion;
 	u8	bNumPorts;		/* don't use!! */
 	u8	bmAttributes;		/* Reserved == 0 */
-	u16	wNumRPipes;
-	u16	wRPipeMaxBlock;
+	__le16	wNumRPipes;
+	__le16	wRPipeMaxBlock;
 	u8	bRPipeBlockSize;
 	u8	bPwrOn2PwrGood;
 	u8	bNumMMCIEs;
-- 
cgit 


From 75b76b470f8772c0c5745d5546b34716e06cc4b8 Mon Sep 17 00:00:00 2001
From: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Date: Sat, 19 Oct 2013 08:51:20 +0530
Subject: Staging: speakup: removing jiffies comparison using time_after_eq()

Fix checkpatch warning:  Comparing jiffies is almost always wrong;
prefer time_after, time_before and friends

Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/speakup/speakup_acntpc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/speakup/speakup_acntpc.c b/drivers/staging/speakup/speakup_acntpc.c
index 80141aca712f..1c8a7f4a0ef5 100644
--- a/drivers/staging/speakup/speakup_acntpc.c
+++ b/drivers/staging/speakup/speakup_acntpc.c
@@ -223,7 +223,7 @@ static void do_catch_up(struct spk_synth *synth)
 		if (ch == '\n')
 			ch = PROCSPEECH;
 		outb_p(ch, speakup_info.port_tts);
-		if (jiffies >= jiff_max && ch == SPACE) {
+		if (time_after_eq(jiffies, jiff_max) && ch == SPACE) {
 			timeout = SPK_XMITR_TIMEOUT;
 			while (synth_writable()) {
 				if (!--timeout)
-- 
cgit 


From c45a9a9bf3b179ec1543d4e4e5fe0a7b6e82548e Mon Sep 17 00:00:00 2001
From: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Date: Sat, 19 Oct 2013 09:00:59 +0530
Subject: Staging: speakup: removing jiffies comparison in speakup_apollo.c

Fix checkpatch warning: WARNING: Comparing jiffies is almost always
wrong; prefer time_after, time_before and friends

Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/speakup/speakup_apollo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/speakup/speakup_apollo.c b/drivers/staging/speakup/speakup_apollo.c
index 95d3132f0a35..70cf1591676a 100644
--- a/drivers/staging/speakup/speakup_apollo.c
+++ b/drivers/staging/speakup/speakup_apollo.c
@@ -179,7 +179,7 @@ static void do_catch_up(struct spk_synth *synth)
 			schedule_timeout(msecs_to_jiffies(full_time_val));
 			continue;
 		}
-		if ((jiffies >= jiff_max) && (ch == SPACE)) {
+		if (time_after_eq(jiffies, jiff_max) && (ch == SPACE)) {
 			spin_lock_irqsave(&speakup_info.spinlock, flags);
 			jiffy_delta_val = jiffy_delta->u.n.value;
 			full_time_val = full_time->u.n.value;
-- 
cgit 


From 5e1e704a7de14ae79dc4d983dbbcab67064960c9 Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Fri, 18 Oct 2013 21:37:47 +0300
Subject: staging: rtl8192u: fix sparse warning, make a function static

Fix the following sparse warning:
drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c:240:22: warning: symbol 'ieee80211_alloc_txb' was not declared. Should it be static?

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
index 682659a749b6..157b2d7466e5 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_tx.c
@@ -237,8 +237,8 @@ void ieee80211_txb_free(struct ieee80211_txb *txb) {
 	kfree(txb);
 }
 
-struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size,
-					  gfp_t gfp_mask)
+static struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size,
+						 gfp_t gfp_mask)
 {
 	struct ieee80211_txb *txb;
 	int i;
-- 
cgit 


From 33faa04547d7ab51700bdc3fe9b6306d93dea43f Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@meshcoding.com>
Date: Sat, 19 Oct 2013 14:06:05 +0200
Subject: batman-adv: check skb preparation return value

Fix bogus merge conflict resolution by checking the return
values of the skb preparation routines.

Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/send.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index 82588e425641..d765d53f8201 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -267,11 +267,14 @@ int batadv_send_skb_generic_unicast(struct batadv_priv *bat_priv,
 
 	switch (packet_type) {
 	case BATADV_UNICAST:
-		batadv_send_skb_prepare_unicast(skb, orig_node);
+		if (!batadv_send_skb_prepare_unicast(skb, orig_node))
+			goto out;
 		break;
 	case BATADV_UNICAST_4ADDR:
-		batadv_send_skb_prepare_unicast_4addr(bat_priv, skb, orig_node,
-						      packet_subtype);
+		if (!batadv_send_skb_prepare_unicast_4addr(bat_priv, skb,
+							   orig_node,
+							   packet_subtype))
+			goto out;
 		break;
 	default:
 		/* this function supports UNICAST and UNICAST_4ADDR only. It
-- 
cgit 


From c679ff8fb246cf1fa7f79fbf25a35048daebc84c Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <sw@simonwunderlich.de>
Date: Thu, 10 Oct 2013 23:59:10 +0200
Subject: batman-adv: update email address for Simon Wunderlich

My university will stop email service for alumni in january 2014, please
use my new e-mail address instead.

Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
---
 Documentation/ABI/testing/sysfs-class-net-mesh | 4 ++--
 Documentation/networking/batman-adv.txt        | 2 +-
 MAINTAINERS                                    | 2 +-
 net/batman-adv/main.h                          | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-class-net-mesh b/Documentation/ABI/testing/sysfs-class-net-mesh
index f00a69b68a25..96ae0a45135f 100644
--- a/Documentation/ABI/testing/sysfs-class-net-mesh
+++ b/Documentation/ABI/testing/sysfs-class-net-mesh
@@ -16,7 +16,7 @@ Description:
 
 What:           /sys/class/net/<mesh_iface>/mesh/bonding
 Date:           June 2010
-Contact:        Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
+Contact:        Simon Wunderlich <sw@simonwunderlich.de>
 Description:
                 Indicates whether the data traffic going through the
                 mesh will be sent using multiple interfaces at the
@@ -24,7 +24,7 @@ Description:
 
 What:           /sys/class/net/<mesh_iface>/mesh/bridge_loop_avoidance
 Date:           November 2011
-Contact:        Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
+Contact:        Simon Wunderlich <sw@simonwunderlich.de>
 Description:
                 Indicates whether the bridge loop avoidance feature
                 is enabled. This feature detects and avoids loops
diff --git a/Documentation/networking/batman-adv.txt b/Documentation/networking/batman-adv.txt
index 897d1f4e1df1..89ace66bfe9a 100644
--- a/Documentation/networking/batman-adv.txt
+++ b/Documentation/networking/batman-adv.txt
@@ -200,4 +200,4 @@ Mailing-list:   b.a.t.m.a.n@open-mesh.org (optional  subscription
 You can also contact the Authors:
 
 Marek  Lindner  <lindner_marek@yahoo.de>
-Simon  Wunderlich  <siwu@hrz.tu-chemnitz.de>
+Simon  Wunderlich  <sw@simonwunderlich.de>
diff --git a/MAINTAINERS b/MAINTAINERS
index a46bcf816a6a..f169259ccdc6 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1653,7 +1653,7 @@ F:	include/linux/backlight.h
 
 BATMAN ADVANCED
 M:	Marek Lindner <mareklindner@neomailbox.ch>
-M:	Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
+M:	Simon Wunderlich <sw@simonwunderlich.de>
 M:	Antonio Quartulli <antonio@meshcoding.com>
 L:	b.a.t.m.a.n@lists.open-mesh.org
 W:	http://www.open-mesh.org/
diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index 54c13d51edbe..c754f8e5bc3c 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -21,7 +21,7 @@
 #define _NET_BATMAN_ADV_MAIN_H_
 
 #define BATADV_DRIVER_AUTHOR "Marek Lindner <lindner_marek@yahoo.de>, " \
-			     "Simon Wunderlich <siwu@hrz.tu-chemnitz.de>"
+			     "Simon Wunderlich <sw@simonwunderlich.de>"
 #define BATADV_DRIVER_DESC   "B.A.T.M.A.N. advanced"
 #define BATADV_DRIVER_DEVICE "batman-adv"
 
-- 
cgit 


From 9f6869518ebc105a53735c0cfd7ed2c241aa4417 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@meshcoding.com>
Date: Fri, 11 Oct 2013 08:30:30 +0200
Subject: batman-adv: update email address for Antonio Quartulli

Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
---
 Documentation/ABI/testing/sysfs-class-net-mesh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/ABI/testing/sysfs-class-net-mesh b/Documentation/ABI/testing/sysfs-class-net-mesh
index 96ae0a45135f..a86528c38237 100644
--- a/Documentation/ABI/testing/sysfs-class-net-mesh
+++ b/Documentation/ABI/testing/sysfs-class-net-mesh
@@ -8,7 +8,7 @@ Description:
 
 What:           /sys/class/net/<mesh_iface>/mesh/ap_isolation
 Date:           May 2011
-Contact:        Antonio Quartulli <ordex@autistici.org>
+Contact:        Antonio Quartulli <antonio@meshcoding.com>
 Description:
                 Indicates whether the data traffic going from a
                 wireless client to another wireless client will be
-- 
cgit 


From bc58eeef744df93e141678ef44452f0869cd563d Mon Sep 17 00:00:00 2001
From: Marek Lindner <mareklindner@neomailbox.ch>
Date: Sat, 12 Oct 2013 22:10:03 +0800
Subject: batman-adv: update email address for Marek Lindner

Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 Documentation/ABI/testing/sysfs-class-net-batman-adv |  4 ++--
 Documentation/ABI/testing/sysfs-class-net-mesh       | 12 ++++++------
 Documentation/networking/batman-adv.txt              |  2 +-
 net/batman-adv/main.h                                |  2 +-
 4 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-class-net-batman-adv b/Documentation/ABI/testing/sysfs-class-net-batman-adv
index bdc00707c751..7f34a95bb963 100644
--- a/Documentation/ABI/testing/sysfs-class-net-batman-adv
+++ b/Documentation/ABI/testing/sysfs-class-net-batman-adv
@@ -1,13 +1,13 @@
 
 What:           /sys/class/net/<iface>/batman-adv/iface_status
 Date:           May 2010
-Contact:        Marek Lindner <lindner_marek@yahoo.de>
+Contact:        Marek Lindner <mareklindner@neomailbox.ch>
 Description:
                 Indicates the status of <iface> as it is seen by batman.
 
 What:           /sys/class/net/<iface>/batman-adv/mesh_iface
 Date:           May 2010
-Contact:        Marek Lindner <lindner_marek@yahoo.de>
+Contact:        Marek Lindner <mareklindner@neomailbox.ch>
 Description:
                 The /sys/class/net/<iface>/batman-adv/mesh_iface file
                 displays the batman mesh interface this <iface>
diff --git a/Documentation/ABI/testing/sysfs-class-net-mesh b/Documentation/ABI/testing/sysfs-class-net-mesh
index a86528c38237..dfdea2bc2286 100644
--- a/Documentation/ABI/testing/sysfs-class-net-mesh
+++ b/Documentation/ABI/testing/sysfs-class-net-mesh
@@ -1,7 +1,7 @@
 
 What:           /sys/class/net/<mesh_iface>/mesh/aggregated_ogms
 Date:           May 2010
-Contact:        Marek Lindner <lindner_marek@yahoo.de>
+Contact:        Marek Lindner <mareklindner@neomailbox.ch>
 Description:
                 Indicates whether the batman protocol messages of the
                 mesh <mesh_iface> shall be aggregated or not.
@@ -41,21 +41,21 @@ Description:
 
 What:           /sys/class/net/<mesh_iface>/mesh/gw_bandwidth
 Date:           October 2010
-Contact:        Marek Lindner <lindner_marek@yahoo.de>
+Contact:        Marek Lindner <mareklindner@neomailbox.ch>
 Description:
                 Defines the bandwidth which is propagated by this
                 node if gw_mode was set to 'server'.
 
 What:           /sys/class/net/<mesh_iface>/mesh/gw_mode
 Date:           October 2010
-Contact:        Marek Lindner <lindner_marek@yahoo.de>
+Contact:        Marek Lindner <mareklindner@neomailbox.ch>
 Description:
                 Defines the state of the gateway features. Can be
                 either 'off', 'client' or 'server'.
 
 What:           /sys/class/net/<mesh_iface>/mesh/gw_sel_class
 Date:           October 2010
-Contact:        Marek Lindner <lindner_marek@yahoo.de>
+Contact:        Marek Lindner <mareklindner@neomailbox.ch>
 Description:
                 Defines the selection criteria this node will use
                 to choose a gateway if gw_mode was set to 'client'.
@@ -77,14 +77,14 @@ Description:
 
 What:           /sys/class/net/<mesh_iface>/mesh/orig_interval
 Date:           May 2010
-Contact:        Marek Lindner <lindner_marek@yahoo.de>
+Contact:        Marek Lindner <mareklindner@neomailbox.ch>
 Description:
                 Defines the interval in milliseconds in which batman
                 sends its protocol messages.
 
 What:           /sys/class/net/<mesh_iface>/mesh/routing_algo
 Date:           Dec 2011
-Contact:        Marek Lindner <lindner_marek@yahoo.de>
+Contact:        Marek Lindner <mareklindner@neomailbox.ch>
 Description:
                 Defines the routing procotol this mesh instance
                 uses to find the optimal paths through the mesh.
diff --git a/Documentation/networking/batman-adv.txt b/Documentation/networking/batman-adv.txt
index 89ace66bfe9a..89490beb3c0b 100644
--- a/Documentation/networking/batman-adv.txt
+++ b/Documentation/networking/batman-adv.txt
@@ -199,5 +199,5 @@ Mailing-list:   b.a.t.m.a.n@open-mesh.org (optional  subscription
 
 You can also contact the Authors:
 
-Marek  Lindner  <lindner_marek@yahoo.de>
+Marek  Lindner  <mareklindner@neomailbox.ch>
 Simon  Wunderlich  <sw@simonwunderlich.de>
diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index c754f8e5bc3c..ff55dccbf6e4 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -20,7 +20,7 @@
 #ifndef _NET_BATMAN_ADV_MAIN_H_
 #define _NET_BATMAN_ADV_MAIN_H_
 
-#define BATADV_DRIVER_AUTHOR "Marek Lindner <lindner_marek@yahoo.de>, " \
+#define BATADV_DRIVER_AUTHOR "Marek Lindner <mareklindner@neomailbox.ch>, " \
 			     "Simon Wunderlich <sw@simonwunderlich.de>"
 #define BATADV_DRIVER_DESC   "B.A.T.M.A.N. advanced"
 #define BATADV_DRIVER_DEVICE "batman-adv"
-- 
cgit 


From c018ad3de61a1dc4194879a53e5559e094aa7b1a Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 4 Jun 2013 12:11:39 +0200
Subject: batman-adv: add the VLAN ID attribute to the TT entry

To make the translation table code VLAN-aware, each entry
must carry the VLAN ID which it belongs to. This patch adds
such attribute to the related TT structures.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/bridge_loop_avoidance.c |  35 ++---
 net/batman-adv/distributed-arp-table.c |  11 +-
 net/batman-adv/gateway_client.c        |   3 +-
 net/batman-adv/main.c                  |  29 +++-
 net/batman-adv/main.h                  |   9 +-
 net/batman-adv/packet.h                |  14 +-
 net/batman-adv/routing.c               |  26 ++--
 net/batman-adv/send.c                  |   8 +-
 net/batman-adv/send.h                  |  16 ++-
 net/batman-adv/soft-interface.c        |  35 ++---
 net/batman-adv/translation-table.c     | 240 ++++++++++++++++++++++++++-------
 net/batman-adv/translation-table.h     |  19 +--
 net/batman-adv/types.h                 |   2 +
 13 files changed, 312 insertions(+), 135 deletions(-)

diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index 5bb58d7bdd56..e8a6458081e8 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -858,27 +858,25 @@ static int batadv_bla_process_claim(struct batadv_priv *bat_priv,
 				    struct batadv_hard_iface *primary_if,
 				    struct sk_buff *skb)
 {
-	struct ethhdr *ethhdr;
+	struct batadv_bla_claim_dst *bla_dst;
+	uint8_t *hw_src, *hw_dst;
 	struct vlan_ethhdr *vhdr;
+	struct ethhdr *ethhdr;
 	struct arphdr *arphdr;
-	uint8_t *hw_src, *hw_dst;
-	struct batadv_bla_claim_dst *bla_dst;
+	unsigned short vid;
 	__be16 proto;
 	int headlen;
-	unsigned short vid = BATADV_NO_FLAGS;
 	int ret;
 
+	vid = batadv_get_vid(skb, 0);
 	ethhdr = eth_hdr(skb);
 
-	if (ethhdr->h_proto == htons(ETH_P_8021Q)) {
+	proto = ethhdr->h_proto;
+	headlen = ETH_HLEN;
+	if (vid & BATADV_VLAN_HAS_TAG) {
 		vhdr = (struct vlan_ethhdr *)ethhdr;
-		vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK;
-		vid |= BATADV_VLAN_HAS_TAG;
 		proto = vhdr->h_vlan_encapsulated_proto;
-		headlen = sizeof(*vhdr);
-	} else {
-		proto = ethhdr->h_proto;
-		headlen = ETH_HLEN;
+		headlen += VLAN_HLEN;
 	}
 
 	if (proto != htons(ETH_P_ARP))
@@ -1365,10 +1363,8 @@ int batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, uint8_t *orig)
 int batadv_bla_is_backbone_gw(struct sk_buff *skb,
 			      struct batadv_orig_node *orig_node, int hdr_size)
 {
-	struct ethhdr *ethhdr;
-	struct vlan_ethhdr *vhdr;
 	struct batadv_bla_backbone_gw *backbone_gw;
-	unsigned short vid = BATADV_NO_FLAGS;
+	unsigned short vid;
 
 	if (!atomic_read(&orig_node->bat_priv->bridge_loop_avoidance))
 		return 0;
@@ -1377,16 +1373,7 @@ int batadv_bla_is_backbone_gw(struct sk_buff *skb,
 	if (!pskb_may_pull(skb, hdr_size + ETH_HLEN))
 		return 0;
 
-	ethhdr = (struct ethhdr *)(((uint8_t *)skb->data) + hdr_size);
-
-	if (ethhdr->h_proto == htons(ETH_P_8021Q)) {
-		if (!pskb_may_pull(skb, hdr_size + VLAN_ETH_HLEN))
-			return 0;
-
-		vhdr = (struct vlan_ethhdr *)(skb->data + hdr_size);
-		vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK;
-		vid |= BATADV_VLAN_HAS_TAG;
-	}
+	vid = batadv_get_vid(skb, hdr_size);
 
 	/* see if this originator is a backbone gw for this VLAN */
 	backbone_gw = batadv_backbone_hash_find(orig_node->bat_priv,
diff --git a/net/batman-adv/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c
index 99da41290f82..1b590f01f824 100644
--- a/net/batman-adv/distributed-arp-table.c
+++ b/net/batman-adv/distributed-arp-table.c
@@ -905,7 +905,8 @@ bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
 		 * additional DAT answer may trigger kernel warnings about
 		 * a packet coming from the wrong port.
 		 */
-		if (batadv_is_my_client(bat_priv, dat_entry->mac_addr)) {
+		if (batadv_is_my_client(bat_priv, dat_entry->mac_addr,
+					BATADV_NO_FLAGS)) {
 			ret = true;
 			goto out;
 		}
@@ -990,9 +991,11 @@ bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv,
 	 */
 	if (hdr_size == sizeof(struct batadv_unicast_4addr_packet))
 		err = batadv_send_skb_unicast_4addr(bat_priv, skb_new,
-						    BATADV_P_DAT_CACHE_REPLY);
+						    BATADV_P_DAT_CACHE_REPLY,
+						    BATADV_NO_FLAGS);
 	else
-		err = batadv_send_skb_unicast(bat_priv, skb_new);
+		err = batadv_send_skb_unicast(bat_priv, skb_new,
+					      BATADV_NO_FLAGS);
 
 	if (!err) {
 		batadv_inc_counter(bat_priv, BATADV_CNT_DAT_CACHED_REPLY_TX);
@@ -1080,7 +1083,7 @@ bool batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv,
 	/* if this REPLY is directed to a client of mine, let's deliver the
 	 * packet to the interface
 	 */
-	ret = !batadv_is_my_client(bat_priv, hw_dst);
+	ret = !batadv_is_my_client(bat_priv, hw_dst, BATADV_NO_FLAGS);
 out:
 	if (ret)
 		kfree_skb(skb);
diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index 053bb318c7a7..a9209466ddaf 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -744,7 +744,8 @@ bool batadv_gw_out_of_range(struct batadv_priv *bat_priv,
 
 	ethhdr = (struct ethhdr *)skb->data;
 	orig_dst_node = batadv_transtable_search(bat_priv, ethhdr->h_source,
-						 ethhdr->h_dest);
+						 ethhdr->h_dest,
+						 BATADV_NO_FLAGS);
 	if (!orig_dst_node)
 		goto out;
 
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index 7f3a5c426615..80f60d1144f0 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -132,7 +132,7 @@ int batadv_mesh_init(struct net_device *soft_iface)
 		goto err;
 
 	batadv_tt_local_add(soft_iface, soft_iface->dev_addr,
-			    BATADV_NULL_IFINDEX);
+			    BATADV_NO_FLAGS, BATADV_NULL_IFINDEX);
 
 	ret = batadv_bla_init(bat_priv);
 	if (ret < 0)
@@ -1144,6 +1144,33 @@ out:
 		batadv_orig_node_free_ref(orig_node);
 }
 
+/**
+ * batadv_get_vid - extract the VLAN identifier from skb if any
+ * @skb: the buffer containing the packet
+ * @header_len: length of the batman header preceding the ethernet header
+ *
+ * If the packet embedded in the skb is vlan tagged this function returns the
+ * VID with the BATADV_VLAN_HAS_TAG flag. Otherwise BATADV_NO_FLAGS is returned.
+ */
+unsigned short batadv_get_vid(struct sk_buff *skb, size_t header_len)
+{
+	struct ethhdr *ethhdr = (struct ethhdr *)(skb->data + header_len);
+	struct vlan_ethhdr *vhdr;
+	unsigned short vid;
+
+	if (ethhdr->h_proto != htons(ETH_P_8021Q))
+		return BATADV_NO_FLAGS;
+
+	if (!pskb_may_pull(skb, header_len + VLAN_ETH_HLEN))
+		return BATADV_NO_FLAGS;
+
+	vhdr = (struct vlan_ethhdr *)(skb->data + header_len);
+	vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK;
+	vid |= BATADV_VLAN_HAS_TAG;
+
+	return vid;
+}
+
 static int batadv_param_set_ra(const char *val, const struct kernel_param *kp)
 {
 	struct batadv_algo_ops *bat_algo_ops;
diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index ff55dccbf6e4..2774d7f4ee0b 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -169,14 +169,6 @@ enum batadv_uev_type {
 #include <linux/seq_file.h>
 #include "types.h"
 
-/**
- * batadv_vlan_flags - flags for the four MSB of any vlan ID field
- * @BATADV_VLAN_HAS_TAG: whether the field contains a valid vlan tag or not
- */
-enum batadv_vlan_flags {
-	BATADV_VLAN_HAS_TAG	= BIT(15),
-};
-
 #define BATADV_PRINT_VID(vid) (vid & BATADV_VLAN_HAS_TAG ? \
 			       (int)(vid & VLAN_VID_MASK) : -1)
 
@@ -368,5 +360,6 @@ int batadv_tvlv_containers_process(struct batadv_priv *bat_priv,
 void batadv_tvlv_unicast_send(struct batadv_priv *bat_priv, uint8_t *src,
 			      uint8_t *dst, uint8_t type, uint8_t version,
 			      void *tvlv_value, uint16_t tvlv_value_len);
+unsigned short batadv_get_vid(struct sk_buff *skb, size_t header_len);
 
 #endif /* _NET_BATMAN_ADV_MAIN_H_ */
diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index 65e723ed030b..6311642f3ee8 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -122,6 +122,14 @@ enum batadv_tt_client_flags {
 	BATADV_TT_CLIENT_TEMP	 = BIT(11),
 };
 
+/**
+ * batadv_vlan_flags - flags for the four MSB of any vlan ID field
+ * @BATADV_VLAN_HAS_TAG: whether the field contains a valid vlan tag or not
+ */
+enum batadv_vlan_flags {
+	BATADV_VLAN_HAS_TAG	= BIT(15),
+};
+
 /* claim frame types for the bridge loop avoidance */
 enum batadv_bla_claimframe {
 	BATADV_CLAIM_TYPE_CLAIM		= 0x00,
@@ -399,21 +407,23 @@ struct batadv_tvlv_tt_data {
  *  batadv_tt_client_flags)
  * @reserved: reserved field
  * @addr: mac address of non-mesh client that triggered this tt change
+ * @vid: VLAN identifier
  */
 struct batadv_tvlv_tt_change {
 	uint8_t flags;
 	uint8_t reserved;
 	uint8_t addr[ETH_ALEN];
+	__be16 vid;
 };
 
 /**
  * struct batadv_tvlv_roam_adv - roaming advertisement
  * @client: mac address of roaming client
- * @reserved: field reserved for future use
+ * @vid: VLAN identifier
  */
 struct batadv_tvlv_roam_adv {
 	uint8_t  client[ETH_ALEN];
-	uint16_t reserved;
+	__be16 vid;
 };
 
 #endif /* _NET_BATMAN_ADV_PACKET_H_ */
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 3281a504c20a..149ef57e78c3 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -30,6 +30,8 @@
 #include "network-coding.h"
 #include "fragmentation.h"
 
+#include <linux/if_vlan.h>
+
 static int batadv_route_unicast_packet(struct sk_buff *skb,
 				       struct batadv_hard_iface *recv_if);
 
@@ -724,6 +726,7 @@ out:
  * @bat_priv: the bat priv with all the soft interface information
  * @unicast_packet: the unicast header to be updated
  * @dst_addr: the payload destination
+ * @vid: VLAN identifier
  *
  * Search the translation table for dst_addr and update the unicast header with
  * the new corresponding information (originator address where the destination
@@ -734,21 +737,22 @@ out:
 static bool
 batadv_reroute_unicast_packet(struct batadv_priv *bat_priv,
 			      struct batadv_unicast_packet *unicast_packet,
-			      uint8_t *dst_addr)
+			      uint8_t *dst_addr, unsigned short vid)
 {
 	struct batadv_orig_node *orig_node = NULL;
 	struct batadv_hard_iface *primary_if = NULL;
 	bool ret = false;
 	uint8_t *orig_addr, orig_ttvn;
 
-	if (batadv_is_my_client(bat_priv, dst_addr)) {
+	if (batadv_is_my_client(bat_priv, dst_addr, vid)) {
 		primary_if = batadv_primary_if_get_selected(bat_priv);
 		if (!primary_if)
 			goto out;
 		orig_addr = primary_if->net_dev->dev_addr;
 		orig_ttvn = (uint8_t)atomic_read(&bat_priv->tt.vn);
 	} else {
-		orig_node = batadv_transtable_search(bat_priv, NULL, dst_addr);
+		orig_node = batadv_transtable_search(bat_priv, NULL, dst_addr,
+						     vid);
 		if (!orig_node)
 			goto out;
 
@@ -775,11 +779,12 @@ out:
 
 static int batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
 				     struct sk_buff *skb, int hdr_len) {
-	uint8_t curr_ttvn, old_ttvn;
+	struct batadv_unicast_packet *unicast_packet;
+	struct batadv_hard_iface *primary_if;
 	struct batadv_orig_node *orig_node;
+	uint8_t curr_ttvn, old_ttvn;
 	struct ethhdr *ethhdr;
-	struct batadv_hard_iface *primary_if;
-	struct batadv_unicast_packet *unicast_packet;
+	unsigned short vid;
 	int is_old_ttvn;
 
 	/* check if there is enough data before accessing it */
@@ -791,6 +796,7 @@ static int batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
 		return 0;
 
 	unicast_packet = (struct batadv_unicast_packet *)skb->data;
+	vid = batadv_get_vid(skb, hdr_len);
 	ethhdr = (struct ethhdr *)(skb->data + hdr_len);
 
 	/* check if the destination client was served by this node and it is now
@@ -798,9 +804,9 @@ static int batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
 	 * message and that it knows the new destination in the mesh to re-route
 	 * the packet to
 	 */
-	if (batadv_tt_local_client_is_roaming(bat_priv, ethhdr->h_dest)) {
+	if (batadv_tt_local_client_is_roaming(bat_priv, ethhdr->h_dest, vid)) {
 		if (batadv_reroute_unicast_packet(bat_priv, unicast_packet,
-						  ethhdr->h_dest))
+						  ethhdr->h_dest, vid))
 			net_ratelimited_function(batadv_dbg, BATADV_DBG_TT,
 						 bat_priv,
 						 "Rerouting unicast packet to %pM (dst=%pM): Local Roaming\n",
@@ -846,7 +852,7 @@ static int batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
 	 * target host
 	 */
 	if (batadv_reroute_unicast_packet(bat_priv, unicast_packet,
-					  ethhdr->h_dest)) {
+					  ethhdr->h_dest, vid)) {
 		net_ratelimited_function(batadv_dbg, BATADV_DBG_TT, bat_priv,
 					 "Rerouting unicast packet to %pM (dst=%pM): TTVN mismatch old_ttvn=%u new_ttvn=%u\n",
 					 unicast_packet->dest, ethhdr->h_dest,
@@ -858,7 +864,7 @@ static int batadv_check_unicast_ttvn(struct batadv_priv *bat_priv,
 	 * currently served by this node or there is no destination at all and
 	 * it is possible to drop the packet
 	 */
-	if (!batadv_is_my_client(bat_priv, ethhdr->h_dest))
+	if (!batadv_is_my_client(bat_priv, ethhdr->h_dest, vid))
 		return 0;
 
 	/* update the header in order to let the packet be delivered to this
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index d765d53f8201..acaa7ffff245 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -240,12 +240,14 @@ out:
  * @packet_type: the batman unicast packet type to use
  * @packet_subtype: the unicast 4addr packet subtype (only relevant for unicast
  *  4addr packets)
+ * @vid: the vid to be used to search the translation table
  *
  * Returns 1 in case of error or 0 otherwise.
  */
 int batadv_send_skb_generic_unicast(struct batadv_priv *bat_priv,
 				    struct sk_buff *skb, int packet_type,
-				    int packet_subtype)
+				    int packet_subtype,
+				    unsigned short vid)
 {
 	struct ethhdr *ethhdr = (struct ethhdr *)skb->data;
 	struct batadv_unicast_packet *unicast_packet;
@@ -260,7 +262,7 @@ int batadv_send_skb_generic_unicast(struct batadv_priv *bat_priv,
 		 * returns NULL in case of AP isolation
 		 */
 		orig_node = batadv_transtable_search(bat_priv, ethhdr->h_source,
-						     ethhdr->h_dest);
+						     ethhdr->h_dest, vid);
 
 	if (!orig_node)
 		goto out;
@@ -290,7 +292,7 @@ int batadv_send_skb_generic_unicast(struct batadv_priv *bat_priv,
 	 * try to reroute it because the ttvn contained in the header is less
 	 * than the current one
 	 */
-	if (batadv_tt_global_client_is_roaming(bat_priv, ethhdr->h_dest))
+	if (batadv_tt_global_client_is_roaming(bat_priv, ethhdr->h_dest, vid))
 		unicast_packet->ttvn = unicast_packet->ttvn - 1;
 
 	if (batadv_send_skb_to_orig(skb, orig_node, NULL) != NET_XMIT_DROP)
diff --git a/net/batman-adv/send.h b/net/batman-adv/send.h
index ad63184a4dd9..c030cb72ff45 100644
--- a/net/batman-adv/send.h
+++ b/net/batman-adv/send.h
@@ -40,21 +40,23 @@ bool batadv_send_skb_prepare_unicast_4addr(struct batadv_priv *bat_priv,
 					   int packet_subtype);
 int batadv_send_skb_generic_unicast(struct batadv_priv *bat_priv,
 				    struct sk_buff *skb, int packet_type,
-				    int packet_subtype);
-
+				    int packet_subtype,
+				    unsigned short vid);
 
 /**
  * batadv_send_unicast_skb - send the skb encapsulated in a unicast packet
  * @bat_priv: the bat priv with all the soft interface information
  * @skb: the payload to send
+ * @vid: the vid to be used to search the translation table
  *
  * Returns 1 in case of error or 0 otherwise.
  */
 static inline int batadv_send_skb_unicast(struct batadv_priv *bat_priv,
-					  struct sk_buff *skb)
+					  struct sk_buff *skb,
+					  unsigned short vid)
 {
 	return batadv_send_skb_generic_unicast(bat_priv, skb, BATADV_UNICAST,
-					       0);
+					       0, vid);
 }
 
 /**
@@ -63,16 +65,18 @@ static inline int batadv_send_skb_unicast(struct batadv_priv *bat_priv,
  * @bat_priv: the bat priv with all the soft interface information
  * @skb: the payload to send
  * @packet_subtype: the unicast 4addr packet subtype to use
+ * @vid: the vid to be used to search the translation table
  *
  * Returns 1 in case of error or 0 otherwise.
  */
 static inline int batadv_send_skb_unicast_4addr(struct batadv_priv *bat_priv,
 						struct sk_buff *skb,
-						int packet_subtype)
+						int packet_subtype,
+						unsigned short vid)
 {
 	return batadv_send_skb_generic_unicast(bat_priv, skb,
 					       BATADV_UNICAST_4ADDR,
-					       packet_subtype);
+					       packet_subtype, vid);
 }
 
 #endif /* _NET_BATMAN_ADV_SEND_H_ */
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index e8a2bd699d40..279e91d570a7 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -118,9 +118,10 @@ static int batadv_interface_set_mac_addr(struct net_device *dev, void *p)
 
 	/* only modify transtable if it has been initialized before */
 	if (atomic_read(&bat_priv->mesh_state) == BATADV_MESH_ACTIVE) {
-		batadv_tt_local_remove(bat_priv, old_addr,
+		batadv_tt_local_remove(bat_priv, old_addr, BATADV_NO_FLAGS,
 				       "mac address changed", false);
-		batadv_tt_local_add(dev, addr->sa_data, BATADV_NULL_IFINDEX);
+		batadv_tt_local_add(dev, addr->sa_data, BATADV_NO_FLAGS,
+				    BATADV_NULL_IFINDEX);
 	}
 
 	return 0;
@@ -152,33 +153,33 @@ static void batadv_interface_set_rx_mode(struct net_device *dev)
 static int batadv_interface_tx(struct sk_buff *skb,
 			       struct net_device *soft_iface)
 {
-	struct ethhdr *ethhdr = (struct ethhdr *)skb->data;
+	struct ethhdr *ethhdr;
 	struct batadv_priv *bat_priv = netdev_priv(soft_iface);
 	struct batadv_hard_iface *primary_if = NULL;
 	struct batadv_bcast_packet *bcast_packet;
-	struct vlan_ethhdr *vhdr;
 	__be16 ethertype = htons(ETH_P_BATMAN);
 	static const uint8_t stp_addr[ETH_ALEN] = {0x01, 0x80, 0xC2, 0x00,
 						   0x00, 0x00};
 	static const uint8_t ectp_addr[ETH_ALEN] = {0xCF, 0x00, 0x00, 0x00,
 						    0x00, 0x00};
+	struct vlan_ethhdr *vhdr;
 	unsigned int header_len = 0;
 	int data_len = skb->len, ret;
-	unsigned short vid __maybe_unused = BATADV_NO_FLAGS;
+	unsigned long brd_delay = 1;
 	bool do_bcast = false;
+	unsigned short vid;
 	uint32_t seqno;
-	unsigned long brd_delay = 1;
 
 	if (atomic_read(&bat_priv->mesh_state) != BATADV_MESH_ACTIVE)
 		goto dropped;
 
 	soft_iface->trans_start = jiffies;
+	vid = batadv_get_vid(skb, 0);
+	ethhdr = (struct ethhdr *)skb->data;
 
 	switch (ntohs(ethhdr->h_proto)) {
 	case ETH_P_8021Q:
 		vhdr = (struct vlan_ethhdr *)skb->data;
-		vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK;
-		vid |= BATADV_VLAN_HAS_TAG;
 
 		if (vhdr->h_vlan_encapsulated_proto != ethertype)
 			break;
@@ -196,7 +197,8 @@ static int batadv_interface_tx(struct sk_buff *skb,
 
 	/* Register the client MAC in the transtable */
 	if (!is_multicast_ether_addr(ethhdr->h_source))
-		batadv_tt_local_add(soft_iface, ethhdr->h_source, skb->skb_iif);
+		batadv_tt_local_add(soft_iface, ethhdr->h_source, vid,
+				    skb->skb_iif);
 
 	/* don't accept stp packets. STP does not help in meshes.
 	 * better use the bridge loop avoidance ...
@@ -296,7 +298,7 @@ static int batadv_interface_tx(struct sk_buff *skb,
 
 		batadv_dat_snoop_outgoing_arp_reply(bat_priv, skb);
 
-		ret = batadv_send_skb_unicast(bat_priv, skb);
+		ret = batadv_send_skb_unicast(bat_priv, skb, vid);
 		if (ret != 0)
 			goto dropped_freed;
 	}
@@ -319,12 +321,12 @@ void batadv_interface_rx(struct net_device *soft_iface,
 			 struct sk_buff *skb, struct batadv_hard_iface *recv_if,
 			 int hdr_size, struct batadv_orig_node *orig_node)
 {
-	struct batadv_priv *bat_priv = netdev_priv(soft_iface);
-	struct ethhdr *ethhdr;
-	struct vlan_ethhdr *vhdr;
 	struct batadv_header *batadv_header = (struct batadv_header *)skb->data;
-	unsigned short vid __maybe_unused = BATADV_NO_FLAGS;
+	struct batadv_priv *bat_priv = netdev_priv(soft_iface);
 	__be16 ethertype = htons(ETH_P_BATMAN);
+	struct vlan_ethhdr *vhdr;
+	struct ethhdr *ethhdr;
+	unsigned short vid;
 	bool is_bcast;
 
 	is_bcast = (batadv_header->packet_type == BATADV_BCAST);
@@ -336,13 +338,12 @@ void batadv_interface_rx(struct net_device *soft_iface,
 	skb_pull_rcsum(skb, hdr_size);
 	skb_reset_mac_header(skb);
 
+	vid = batadv_get_vid(skb, hdr_size);
 	ethhdr = eth_hdr(skb);
 
 	switch (ntohs(ethhdr->h_proto)) {
 	case ETH_P_8021Q:
 		vhdr = (struct vlan_ethhdr *)skb->data;
-		vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK;
-		vid |= BATADV_VLAN_HAS_TAG;
 
 		if (vhdr->h_vlan_encapsulated_proto != ethertype)
 			break;
@@ -378,7 +379,7 @@ void batadv_interface_rx(struct net_device *soft_iface,
 
 	if (orig_node)
 		batadv_tt_add_temporary_global_entry(bat_priv, orig_node,
-						     ethhdr->h_source);
+						     ethhdr->h_source, vid);
 
 	if (batadv_is_ap_isolated(bat_priv, ethhdr->h_source, ethhdr->h_dest))
 		goto dropped;
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index b521afb186d4..63adb97a7677 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -34,6 +34,7 @@ static struct lock_class_key batadv_tt_local_hash_lock_class_key;
 static struct lock_class_key batadv_tt_global_hash_lock_class_key;
 
 static void batadv_send_roam_adv(struct batadv_priv *bat_priv, uint8_t *client,
+				 unsigned short vid,
 				 struct batadv_orig_node *orig_node);
 static void batadv_tt_purge(struct work_struct *work);
 static void
@@ -41,7 +42,8 @@ batadv_tt_global_del_orig_list(struct batadv_tt_global_entry *tt_global_entry);
 static void batadv_tt_global_del(struct batadv_priv *bat_priv,
 				 struct batadv_orig_node *orig_node,
 				 const unsigned char *addr,
-				 const char *message, bool roaming);
+				 unsigned short vid, const char *message,
+				 bool roaming);
 
 /* returns 1 if they are the same mac addr */
 static int batadv_compare_tt(const struct hlist_node *node, const void *data2)
@@ -52,43 +54,93 @@ static int batadv_compare_tt(const struct hlist_node *node, const void *data2)
 	return (memcmp(data1, data2, ETH_ALEN) == 0 ? 1 : 0);
 }
 
+/**
+ * batadv_choose_tt - return the index of the tt entry in the hash table
+ * @data: pointer to the tt_common_entry object to map
+ * @size: the size of the hash table
+ *
+ * Returns the hash index where the object represented by 'data' should be
+ * stored at.
+ */
+static inline uint32_t batadv_choose_tt(const void *data, uint32_t size)
+{
+	struct batadv_tt_common_entry *tt;
+	uint32_t hash = 0;
+
+	tt = (struct batadv_tt_common_entry *)data;
+	hash = batadv_hash_bytes(hash, &tt->addr, ETH_ALEN);
+	hash = batadv_hash_bytes(hash, &tt->vid, sizeof(tt->vid));
+
+	hash += (hash << 3);
+	hash ^= (hash >> 11);
+	hash += (hash << 15);
+
+	return hash % size;
+}
+
+/**
+ * batadv_tt_hash_find - look for a client in the given hash table
+ * @hash: the hash table to search
+ * @addr: the mac address of the client to look for
+ * @vid: VLAN identifier
+ *
+ * Returns a pointer to the tt_common struct belonging to the searched client if
+ * found, NULL otherwise.
+ */
 static struct batadv_tt_common_entry *
-batadv_tt_hash_find(struct batadv_hashtable *hash, const void *data)
+batadv_tt_hash_find(struct batadv_hashtable *hash, const uint8_t *addr,
+		    unsigned short vid)
 {
 	struct hlist_head *head;
-	struct batadv_tt_common_entry *tt_common_entry;
-	struct batadv_tt_common_entry *tt_common_entry_tmp = NULL;
+	struct batadv_tt_common_entry to_search, *tt, *tt_tmp = NULL;
 	uint32_t index;
 
 	if (!hash)
 		return NULL;
 
-	index = batadv_choose_orig(data, hash->size);
+	memcpy(to_search.addr, addr, ETH_ALEN);
+	to_search.vid = vid;
+
+	index = batadv_choose_tt(&to_search, hash->size);
 	head = &hash->table[index];
 
 	rcu_read_lock();
-	hlist_for_each_entry_rcu(tt_common_entry, head, hash_entry) {
-		if (!batadv_compare_eth(tt_common_entry, data))
+	hlist_for_each_entry_rcu(tt, head, hash_entry) {
+		if (!batadv_compare_eth(tt, addr))
+			continue;
+
+		if (tt->vid != vid)
 			continue;
 
-		if (!atomic_inc_not_zero(&tt_common_entry->refcount))
+		if (!atomic_inc_not_zero(&tt->refcount))
 			continue;
 
-		tt_common_entry_tmp = tt_common_entry;
+		tt_tmp = tt;
 		break;
 	}
 	rcu_read_unlock();
 
-	return tt_common_entry_tmp;
+	return tt_tmp;
 }
 
+/**
+ * batadv_tt_local_hash_find - search the local table for a given client
+ * @bat_priv: the bat priv with all the soft interface information
+ * @addr: the mac address of the client to look for
+ * @vid: VLAN identifier
+ *
+ * Returns a pointer to the corresponding tt_local_entry struct if the client is
+ * found, NULL otherwise.
+ */
 static struct batadv_tt_local_entry *
-batadv_tt_local_hash_find(struct batadv_priv *bat_priv, const void *data)
+batadv_tt_local_hash_find(struct batadv_priv *bat_priv, const uint8_t *addr,
+			  unsigned short vid)
 {
 	struct batadv_tt_common_entry *tt_common_entry;
 	struct batadv_tt_local_entry *tt_local_entry = NULL;
 
-	tt_common_entry = batadv_tt_hash_find(bat_priv->tt.local_hash, data);
+	tt_common_entry = batadv_tt_hash_find(bat_priv->tt.local_hash, addr,
+					      vid);
 	if (tt_common_entry)
 		tt_local_entry = container_of(tt_common_entry,
 					      struct batadv_tt_local_entry,
@@ -96,13 +148,24 @@ batadv_tt_local_hash_find(struct batadv_priv *bat_priv, const void *data)
 	return tt_local_entry;
 }
 
+/**
+ * batadv_tt_global_hash_find - search the global table for a given client
+ * @bat_priv: the bat priv with all the soft interface information
+ * @addr: the mac address of the client to look for
+ * @vid: VLAN identifier
+ *
+ * Returns a pointer to the corresponding tt_global_entry struct if the client
+ * is found, NULL otherwise.
+ */
 static struct batadv_tt_global_entry *
-batadv_tt_global_hash_find(struct batadv_priv *bat_priv, const void *data)
+batadv_tt_global_hash_find(struct batadv_priv *bat_priv, const uint8_t *addr,
+			   unsigned short vid)
 {
 	struct batadv_tt_common_entry *tt_common_entry;
 	struct batadv_tt_global_entry *tt_global_entry = NULL;
 
-	tt_common_entry = batadv_tt_hash_find(bat_priv->tt.global_hash, data);
+	tt_common_entry = batadv_tt_hash_find(bat_priv->tt.global_hash, addr,
+					      vid);
 	if (tt_common_entry)
 		tt_global_entry = container_of(tt_common_entry,
 					       struct batadv_tt_global_entry,
@@ -178,6 +241,7 @@ static void batadv_tt_local_event(struct batadv_priv *bat_priv,
 	tt_change_node->change.flags = flags;
 	tt_change_node->change.reserved = 0;
 	memcpy(tt_change_node->change.addr, common->addr, ETH_ALEN);
+	tt_change_node->change.vid = htons(common->vid);
 
 	del_op_requested = flags & BATADV_TT_CLIENT_DEL;
 
@@ -268,12 +332,21 @@ static void batadv_tt_global_free(struct batadv_priv *bat_priv,
 		   tt_global->common.addr, message);
 
 	batadv_hash_remove(bat_priv->tt.global_hash, batadv_compare_tt,
-			   batadv_choose_orig, tt_global->common.addr);
+			   batadv_choose_tt, &tt_global->common);
 	batadv_tt_global_entry_free_ref(tt_global);
 }
 
+/**
+ * batadv_tt_local_add - add a new client to the local table or update an
+ *  existing client
+ * @soft_iface: netdev struct of the mesh interface
+ * @addr: the mac address of the client to add
+ * @vid: VLAN identifier
+ * @ifindex: index of the interface where the client is connected to (useful to
+ *  identify wireless clients)
+ */
 void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
-			 int ifindex)
+			 unsigned short vid, int ifindex)
 {
 	struct batadv_priv *bat_priv = netdev_priv(soft_iface);
 	struct batadv_tt_local_entry *tt_local;
@@ -283,8 +356,8 @@ void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
 	int hash_added;
 	bool roamed_back = false;
 
-	tt_local = batadv_tt_local_hash_find(bat_priv, addr);
-	tt_global = batadv_tt_global_hash_find(bat_priv, addr);
+	tt_local = batadv_tt_local_hash_find(bat_priv, addr, vid);
+	tt_global = batadv_tt_global_hash_find(bat_priv, addr, vid);
 
 	if (tt_local) {
 		tt_local->last_seen = jiffies;
@@ -329,6 +402,7 @@ void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
 	 * (consistency check)
 	 */
 	tt_local->common.flags = BATADV_TT_CLIENT_NEW;
+	tt_local->common.vid = vid;
 	if (batadv_is_wifi_iface(ifindex))
 		tt_local->common.flags |= BATADV_TT_CLIENT_WIFI;
 	atomic_set(&tt_local->common.refcount, 2);
@@ -340,7 +414,7 @@ void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
 		tt_local->common.flags |= BATADV_TT_CLIENT_NOPURGE;
 
 	hash_added = batadv_hash_add(bat_priv->tt.local_hash, batadv_compare_tt,
-				     batadv_choose_orig, &tt_local->common,
+				     batadv_choose_tt, &tt_local->common,
 				     &tt_local->common.hash_entry);
 
 	if (unlikely(hash_added != 0)) {
@@ -362,6 +436,7 @@ check_roaming:
 		rcu_read_lock();
 		hlist_for_each_entry_rcu(orig_entry, head, list) {
 			batadv_send_roam_adv(bat_priv, tt_global->common.addr,
+					     tt_global->common.vid,
 					     orig_entry->orig_node);
 		}
 		rcu_read_unlock();
@@ -550,19 +625,20 @@ batadv_tt_local_set_pending(struct batadv_priv *bat_priv,
  * batadv_tt_local_remove - logically remove an entry from the local table
  * @bat_priv: the bat priv with all the soft interface information
  * @addr: the MAC address of the client to remove
+ * @vid: VLAN identifier
  * @message: message to append to the log on deletion
  * @roaming: true if the deletion is due to a roaming event
  *
  * Returns the flags assigned to the local entry before being deleted
  */
 uint16_t batadv_tt_local_remove(struct batadv_priv *bat_priv,
-				const uint8_t *addr, const char *message,
-				bool roaming)
+				const uint8_t *addr, unsigned short vid,
+				const char *message, bool roaming)
 {
 	struct batadv_tt_local_entry *tt_local_entry;
 	uint16_t flags, curr_flags = BATADV_NO_FLAGS;
 
-	tt_local_entry = batadv_tt_local_hash_find(bat_priv, addr);
+	tt_local_entry = batadv_tt_local_hash_find(bat_priv, addr, vid);
 	if (!tt_local_entry)
 		goto out;
 
@@ -798,6 +874,7 @@ out:
  * @bat_priv: the bat priv with all the soft interface information
  * @orig_node: the originator announcing the client
  * @tt_addr: the mac address of the non-mesh client
+ * @vid: VLAN identifier
  * @flags: TT flags that have to be set for this non-mesh client
  * @ttvn: the tt version number ever announcing this non-mesh client
  *
@@ -813,7 +890,8 @@ out:
  */
 static bool batadv_tt_global_add(struct batadv_priv *bat_priv,
 				 struct batadv_orig_node *orig_node,
-				 const unsigned char *tt_addr, uint16_t flags,
+				 const unsigned char *tt_addr,
+				 unsigned short vid, uint16_t flags,
 				 uint8_t ttvn)
 {
 	struct batadv_tt_global_entry *tt_global_entry;
@@ -823,8 +901,8 @@ static bool batadv_tt_global_add(struct batadv_priv *bat_priv,
 	struct batadv_tt_common_entry *common;
 	uint16_t local_flags;
 
-	tt_global_entry = batadv_tt_global_hash_find(bat_priv, tt_addr);
-	tt_local_entry = batadv_tt_local_hash_find(bat_priv, tt_addr);
+	tt_global_entry = batadv_tt_global_hash_find(bat_priv, tt_addr, vid);
+	tt_local_entry = batadv_tt_local_hash_find(bat_priv, tt_addr, vid);
 
 	/* if the node already has a local client for this entry, it has to wait
 	 * for a roaming advertisement instead of manually messing up the global
@@ -841,6 +919,7 @@ static bool batadv_tt_global_add(struct batadv_priv *bat_priv,
 
 		common = &tt_global_entry->common;
 		memcpy(common->addr, tt_addr, ETH_ALEN);
+		common->vid = vid;
 
 		common->flags = flags;
 		tt_global_entry->roam_at = 0;
@@ -858,7 +937,7 @@ static bool batadv_tt_global_add(struct batadv_priv *bat_priv,
 
 		hash_added = batadv_hash_add(bat_priv->tt.global_hash,
 					     batadv_compare_tt,
-					     batadv_choose_orig, common,
+					     batadv_choose_tt, common,
 					     &common->hash_entry);
 
 		if (unlikely(hash_added != 0)) {
@@ -924,7 +1003,7 @@ add_orig_entry:
 out_remove:
 
 	/* remove address from local hash if present */
-	local_flags = batadv_tt_local_remove(bat_priv, tt_addr,
+	local_flags = batadv_tt_local_remove(bat_priv, tt_addr, vid,
 					     "global tt received",
 					     flags & BATADV_TT_CLIENT_ROAM);
 	tt_global_entry->common.flags |= local_flags & BATADV_TT_CLIENT_WIFI;
@@ -1147,17 +1226,25 @@ batadv_tt_global_del_roaming(struct batadv_priv *bat_priv,
 						orig_node, message);
 }
 
-
-
+/**
+ * batadv_tt_global_del - remove a client from the global table
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig_node: an originator serving this client
+ * @addr: the mac address of the client
+ * @vid: VLAN identifier
+ * @message: a message explaining the reason for deleting the client to print
+ *  for debugging purpose
+ * @roaming: true if the deletion has been triggered by a roaming event
+ */
 static void batadv_tt_global_del(struct batadv_priv *bat_priv,
 				 struct batadv_orig_node *orig_node,
-				 const unsigned char *addr,
+				 const unsigned char *addr, unsigned short vid,
 				 const char *message, bool roaming)
 {
 	struct batadv_tt_global_entry *tt_global_entry;
 	struct batadv_tt_local_entry *local_entry = NULL;
 
-	tt_global_entry = batadv_tt_global_hash_find(bat_priv, addr);
+	tt_global_entry = batadv_tt_global_hash_find(bat_priv, addr, vid);
 	if (!tt_global_entry)
 		goto out;
 
@@ -1186,7 +1273,8 @@ static void batadv_tt_global_del(struct batadv_priv *bat_priv,
 	 *    the global entry, since it is useless now.
 	 */
 	local_entry = batadv_tt_local_hash_find(bat_priv,
-						tt_global_entry->common.addr);
+						tt_global_entry->common.addr,
+						vid);
 	if (local_entry) {
 		/* local entry exists, case 2: client roamed to us. */
 		batadv_tt_global_del_orig_list(tt_global_entry);
@@ -1354,9 +1442,24 @@ _batadv_is_ap_isolated(struct batadv_tt_local_entry *tt_local_entry,
 	return ret;
 }
 
+/**
+ * batadv_transtable_search - get the mesh destination for a given client
+ * @bat_priv: the bat priv with all the soft interface information
+ * @src: mac address of the source client
+ * @addr: mac address of the destination client
+ * @vid: VLAN identifier
+ *
+ * Returns a pointer to the originator that was selected as destination in the
+ * mesh for contacting the client 'addr', NULL otherwise.
+ * In case of multiple originators serving the same client, the function returns
+ * the best one (best in terms of metric towards the destination node).
+ *
+ * If the two clients are AP isolated the function returns NULL.
+ */
 struct batadv_orig_node *batadv_transtable_search(struct batadv_priv *bat_priv,
 						  const uint8_t *src,
-						  const uint8_t *addr)
+						  const uint8_t *addr,
+						  unsigned short vid)
 {
 	struct batadv_tt_local_entry *tt_local_entry = NULL;
 	struct batadv_tt_global_entry *tt_global_entry = NULL;
@@ -1364,13 +1467,13 @@ struct batadv_orig_node *batadv_transtable_search(struct batadv_priv *bat_priv,
 	struct batadv_tt_orig_list_entry *best_entry;
 
 	if (src && atomic_read(&bat_priv->ap_isolation)) {
-		tt_local_entry = batadv_tt_local_hash_find(bat_priv, src);
+		tt_local_entry = batadv_tt_local_hash_find(bat_priv, src, vid);
 		if (!tt_local_entry ||
 		    (tt_local_entry->common.flags & BATADV_TT_CLIENT_PENDING))
 			goto out;
 	}
 
-	tt_global_entry = batadv_tt_global_hash_find(bat_priv, addr);
+	tt_global_entry = batadv_tt_global_hash_find(bat_priv, addr, vid);
 	if (!tt_global_entry)
 		goto out;
 
@@ -1649,6 +1752,7 @@ batadv_tt_tvlv_generate(struct batadv_priv *bat_priv,
 			memcpy(tt_change->addr, tt_common_entry->addr,
 			       ETH_ALEN);
 			tt_change->flags = tt_common_entry->flags;
+			tt_change->vid = htons(tt_common_entry->vid);
 			tt_change->reserved = 0;
 
 			tt_num_entries++;
@@ -1979,11 +2083,13 @@ static void _batadv_tt_update_changes(struct batadv_priv *bat_priv,
 			roams = (tt_change + i)->flags & BATADV_TT_CLIENT_ROAM;
 			batadv_tt_global_del(bat_priv, orig_node,
 					     (tt_change + i)->addr,
+					     ntohs((tt_change + i)->vid),
 					     "tt removed by changes",
 					     roams);
 		} else {
 			if (!batadv_tt_global_add(bat_priv, orig_node,
 						  (tt_change + i)->addr,
+						  ntohs((tt_change + i)->vid),
 						  (tt_change + i)->flags, ttvn))
 				/* In case of problem while storing a
 				 * global_entry, we stop the updating
@@ -2040,12 +2146,21 @@ static void batadv_tt_update_changes(struct batadv_priv *bat_priv,
 	atomic_set(&orig_node->last_ttvn, ttvn);
 }
 
-bool batadv_is_my_client(struct batadv_priv *bat_priv, const uint8_t *addr)
+/**
+ * batadv_is_my_client - check if a client is served by the local node
+ * @bat_priv: the bat priv with all the soft interface information
+ * @addr: the mac adress of the client to check
+ * @vid: VLAN identifier
+ *
+ * Returns true if the client is served by this node, false otherwise.
+ */
+bool batadv_is_my_client(struct batadv_priv *bat_priv, const uint8_t *addr,
+			 unsigned short vid)
 {
 	struct batadv_tt_local_entry *tt_local_entry;
 	bool ret = false;
 
-	tt_local_entry = batadv_tt_local_hash_find(bat_priv, addr);
+	tt_local_entry = batadv_tt_local_hash_find(bat_priv, addr, vid);
 	if (!tt_local_entry)
 		goto out;
 	/* Check if the client has been logically deleted (but is kept for
@@ -2194,7 +2309,20 @@ unlock:
 	return ret;
 }
 
+/**
+ * batadv_send_roam_adv - send a roaming advertisement message
+ * @bat_priv: the bat priv with all the soft interface information
+ * @client: mac address of the roaming client
+ * @vid: VLAN identifier
+ * @orig_node: message destination
+ *
+ * Send a ROAMING_ADV message to the node which was previously serving this
+ * client. This is done to inform the node that from now on all traffic destined
+ * for this particular roamed client has to be forwarded to the sender of the
+ * roaming message.
+ */
 static void batadv_send_roam_adv(struct batadv_priv *bat_priv, uint8_t *client,
+				 unsigned short vid,
 				 struct batadv_orig_node *orig_node)
 {
 	struct batadv_hard_iface *primary_if;
@@ -2217,7 +2345,7 @@ static void batadv_send_roam_adv(struct batadv_priv *bat_priv, uint8_t *client,
 	batadv_inc_counter(bat_priv, BATADV_CNT_TT_ROAM_ADV_TX);
 
 	memcpy(tvlv_roam.client, client, sizeof(tvlv_roam.client));
-	tvlv_roam.reserved = 0;
+	tvlv_roam.vid = htons(vid);
 
 	batadv_tvlv_unicast_send(bat_priv, primary_if->net_dev->dev_addr,
 				 orig_node->orig, BATADV_TVLV_ROAM, 1,
@@ -2383,11 +2511,13 @@ bool batadv_is_ap_isolated(struct batadv_priv *bat_priv, uint8_t *src,
 	if (!atomic_read(&bat_priv->ap_isolation))
 		goto out;
 
-	tt_local_entry = batadv_tt_local_hash_find(bat_priv, dst);
+	tt_local_entry = batadv_tt_local_hash_find(bat_priv, dst,
+						   BATADV_NO_FLAGS);
 	if (!tt_local_entry)
 		goto out;
 
-	tt_global_entry = batadv_tt_global_hash_find(bat_priv, src);
+	tt_global_entry = batadv_tt_global_hash_find(bat_priv, src,
+						     BATADV_NO_FLAGS);
 	if (!tt_global_entry)
 		goto out;
 
@@ -2482,17 +2612,23 @@ request_table:
 	}
 }
 
-/* returns true whether we know that the client has moved from its old
- * originator to another one. This entry is kept is still kept for consistency
- * purposes
+/**
+ * batadv_tt_global_client_is_roaming - check if a client is marked as roaming
+ * @bat_priv: the bat priv with all the soft interface information
+ * @addr: the mac address of the client to check
+ * @vid: VLAN identifier
+ *
+ * Returns true if we know that the client has moved from its old originator
+ * to another one. This entry is still kept for consistency purposes and will be
+ * deleted later by a DEL or because of timeout
  */
 bool batadv_tt_global_client_is_roaming(struct batadv_priv *bat_priv,
-					uint8_t *addr)
+					uint8_t *addr, unsigned short vid)
 {
 	struct batadv_tt_global_entry *tt_global_entry;
 	bool ret = false;
 
-	tt_global_entry = batadv_tt_global_hash_find(bat_priv, addr);
+	tt_global_entry = batadv_tt_global_hash_find(bat_priv, addr, vid);
 	if (!tt_global_entry)
 		goto out;
 
@@ -2505,19 +2641,20 @@ out:
 /**
  * batadv_tt_local_client_is_roaming - tells whether the client is roaming
  * @bat_priv: the bat priv with all the soft interface information
- * @addr: the MAC address of the local client to query
+ * @addr: the mac address of the local client to query
+ * @vid: VLAN identifier
  *
  * Returns true if the local client is known to be roaming (it is not served by
  * this node anymore) or not. If yes, the client is still present in the table
  * to keep the latter consistent with the node TTVN
  */
 bool batadv_tt_local_client_is_roaming(struct batadv_priv *bat_priv,
-				       uint8_t *addr)
+				       uint8_t *addr, unsigned short vid)
 {
 	struct batadv_tt_local_entry *tt_local_entry;
 	bool ret = false;
 
-	tt_local_entry = batadv_tt_local_hash_find(bat_priv, addr);
+	tt_local_entry = batadv_tt_local_hash_find(bat_priv, addr, vid);
 	if (!tt_local_entry)
 		goto out;
 
@@ -2529,7 +2666,8 @@ out:
 
 bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
 					  struct batadv_orig_node *orig_node,
-					  const unsigned char *addr)
+					  const unsigned char *addr,
+					  unsigned short vlan)
 {
 	bool ret = false;
 
@@ -2540,7 +2678,7 @@ bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
 	if (batadv_bla_is_backbone_gw_orig(bat_priv, orig_node->orig))
 		goto out;
 
-	if (!batadv_tt_global_add(bat_priv, orig_node, addr,
+	if (!batadv_tt_global_add(bat_priv, orig_node, addr, vlan,
 				  BATADV_TT_CLIENT_TEMP,
 				  atomic_read(&orig_node->last_ttvn)))
 		goto out;
@@ -2706,7 +2844,7 @@ static int batadv_roam_tvlv_unicast_handler_v1(struct batadv_priv *bat_priv,
 		   src, roaming_adv->client);
 
 	batadv_tt_global_add(bat_priv, orig_node, roaming_adv->client,
-			     BATADV_TT_CLIENT_ROAM,
+			     ntohs(roaming_adv->vid), BATADV_TT_CLIENT_ROAM,
 			     atomic_read(&orig_node->last_ttvn) + 1);
 
 out:
diff --git a/net/batman-adv/translation-table.h b/net/batman-adv/translation-table.h
index 015d8b9e63b9..1d9506d85bee 100644
--- a/net/batman-adv/translation-table.h
+++ b/net/batman-adv/translation-table.h
@@ -22,10 +22,10 @@
 
 int batadv_tt_init(struct batadv_priv *bat_priv);
 void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
-			 int ifindex);
+			 unsigned short vid, int ifindex);
 uint16_t batadv_tt_local_remove(struct batadv_priv *bat_priv,
-				const uint8_t *addr, const char *message,
-				bool roaming);
+				const uint8_t *addr, unsigned short vid,
+				const char *message, bool roaming);
 int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset);
 int batadv_tt_global_seq_print_text(struct seq_file *seq, void *offset);
 void batadv_tt_global_del_orig(struct batadv_priv *bat_priv,
@@ -33,18 +33,21 @@ void batadv_tt_global_del_orig(struct batadv_priv *bat_priv,
 			       const char *message);
 struct batadv_orig_node *batadv_transtable_search(struct batadv_priv *bat_priv,
 						  const uint8_t *src,
-						  const uint8_t *addr);
+						  const uint8_t *addr,
+						  unsigned short vid);
 void batadv_tt_free(struct batadv_priv *bat_priv);
-bool batadv_is_my_client(struct batadv_priv *bat_priv, const uint8_t *addr);
+bool batadv_is_my_client(struct batadv_priv *bat_priv, const uint8_t *addr,
+			 unsigned short vid);
 bool batadv_is_ap_isolated(struct batadv_priv *bat_priv, uint8_t *src,
 			   uint8_t *dst);
 void batadv_tt_local_commit_changes(struct batadv_priv *bat_priv);
 bool batadv_tt_global_client_is_roaming(struct batadv_priv *bat_priv,
-					uint8_t *addr);
+					uint8_t *addr, unsigned short vid);
 bool batadv_tt_local_client_is_roaming(struct batadv_priv *bat_priv,
-				       uint8_t *addr);
+				       uint8_t *addr, unsigned short vid);
 bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
 					  struct batadv_orig_node *orig_node,
-					  const unsigned char *addr);
+					  const unsigned char *addr,
+					  unsigned short vid);
 
 #endif /* _NET_BATMAN_ADV_TRANSLATION_TABLE_H_ */
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 5cbb0d09a9b5..99029c5fadf4 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -715,6 +715,7 @@ struct batadv_bla_claim {
 /**
  * struct batadv_tt_common_entry - tt local & tt global common data
  * @addr: mac address of non-mesh client
+ * @vid: VLAN identifier
  * @hash_entry: hlist node for batadv_priv_tt::local_hash or for
  *  batadv_priv_tt::global_hash
  * @flags: various state handling flags (see batadv_tt_client_flags)
@@ -724,6 +725,7 @@ struct batadv_bla_claim {
  */
 struct batadv_tt_common_entry {
 	uint8_t addr[ETH_ALEN];
+	unsigned short vid;
 	struct hlist_node hash_entry;
 	uint16_t flags;
 	unsigned long added_at;
-- 
cgit 


From 0ffa9e8d86d665f0f29343e45ecc09e2772ac646 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 4 Jun 2013 12:11:40 +0200
Subject: batman-adv: use vid when computing local and global TT CRC

now that each TT entry is characterised by a VLAN ID, the
latter has to be taken into consideration when computing the
local/global table CRC as it would be theoretically possible
to have the same client in two different VLANs

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/translation-table.c | 35 +++++++++++++++++++++++++++++++----
 1 file changed, 31 insertions(+), 4 deletions(-)

diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 63adb97a7677..c8fc303ae71e 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -1506,6 +1506,24 @@ out:
  * batadv_tt_global_crc - calculates the checksum of the local table belonging
  *  to the given orig_node
  * @bat_priv: the bat priv with all the soft interface information
+ * @orig_node: originator for which the CRC should be computed
+ *
+ * This function computes the checksum for the global table corresponding to a
+ * specific originator. In particular, the checksum is computed as follows: For
+ * each client connected to the originator the CRC32C of the MAC address and the
+ * VID is computed and then all the CRC32Cs of the various clients are xor'ed
+ * together.
+ *
+ * The idea behind is that CRC32C should be used as much as possible in order to
+ * produce a unique hash of the table, but since the order which is used to feed
+ * the CRC32C function affects the result and since every node in the network
+ * probably sorts the clients differently, the hash function cannot be directly
+ * computed over the entire table. Hence the CRC32C is used only on
+ * the single client entry, while all the results are then xor'ed together
+ * because the XOR operation can combine them all while trying to reduce the
+ * noise as much as possible.
+ *
+ * Returns the checksum of the global table of a given originator.
  */
 static uint32_t batadv_tt_global_crc(struct batadv_priv *bat_priv,
 				     struct batadv_orig_node *orig_node)
@@ -1514,7 +1532,7 @@ static uint32_t batadv_tt_global_crc(struct batadv_priv *bat_priv,
 	struct batadv_tt_common_entry *tt_common;
 	struct batadv_tt_global_entry *tt_global;
 	struct hlist_head *head;
-	uint32_t i, crc = 0;
+	uint32_t i, crc_tmp, crc = 0;
 
 	for (i = 0; i < hash->size; i++) {
 		head = &hash->table[i];
@@ -1545,7 +1563,9 @@ static uint32_t batadv_tt_global_crc(struct batadv_priv *bat_priv,
 							     orig_node))
 				continue;
 
-			crc ^= crc32c(0, tt_common->addr, ETH_ALEN);
+			crc_tmp = crc32c(0, &tt_common->vid,
+					 sizeof(tt_common->vid));
+			crc ^= crc32c(crc_tmp, tt_common->addr, ETH_ALEN);
 		}
 		rcu_read_unlock();
 	}
@@ -1556,13 +1576,18 @@ static uint32_t batadv_tt_global_crc(struct batadv_priv *bat_priv,
 /**
  * batadv_tt_local_crc - calculates the checksum of the local table
  * @bat_priv: the bat priv with all the soft interface information
+ *
+ * For details about the computation, please refer to the documentation for
+ * batadv_tt_global_crc().
+ *
+ * Returns the checksum of the local table
  */
 static uint32_t batadv_tt_local_crc(struct batadv_priv *bat_priv)
 {
 	struct batadv_hashtable *hash = bat_priv->tt.local_hash;
 	struct batadv_tt_common_entry *tt_common;
 	struct hlist_head *head;
-	uint32_t i, crc = 0;
+	uint32_t i, crc_tmp, crc = 0;
 
 	for (i = 0; i < hash->size; i++) {
 		head = &hash->table[i];
@@ -1575,7 +1600,9 @@ static uint32_t batadv_tt_local_crc(struct batadv_priv *bat_priv)
 			if (tt_common->flags & BATADV_TT_CLIENT_NEW)
 				continue;
 
-			crc ^= crc32c(0, tt_common->addr, ETH_ALEN);
+			crc_tmp = crc32c(0, &tt_common->vid,
+					 sizeof(tt_common->vid));
+			crc ^= crc32c(crc_tmp, tt_common->addr, ETH_ALEN);
 		}
 		rcu_read_unlock();
 	}
-- 
cgit 


From 1605278901718ed51b5c8c832d61b1009e556306 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 4 Jun 2013 12:11:41 +0200
Subject: batman-adv: print the VID together with the TT entries

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/main.h              |  2 +
 net/batman-adv/translation-table.c | 82 +++++++++++++++++++++++---------------
 2 files changed, 52 insertions(+), 32 deletions(-)

diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index 2774d7f4ee0b..d7dfafe45f29 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -167,6 +167,8 @@ enum batadv_uev_type {
 #include <net/rtnetlink.h>
 #include <linux/jiffies.h>
 #include <linux/seq_file.h>
+#include <linux/if_vlan.h>
+
 #include "types.h"
 
 #define BATADV_PRINT_VID(vid) (vid & BATADV_VLAN_HAS_TAG ? \
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index c8fc303ae71e..9bf928c0b188 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -328,8 +328,9 @@ static void batadv_tt_global_free(struct batadv_priv *bat_priv,
 				  const char *message)
 {
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
-		   "Deleting global tt entry %pM: %s\n",
-		   tt_global->common.addr, message);
+		   "Deleting global tt entry %pM (vid: %d): %s\n",
+		   tt_global->common.addr,
+		   BATADV_PRINT_VID(tt_global->common.vid), message);
 
 	batadv_hash_remove(bat_priv->tt.global_hash, batadv_compare_tt,
 			   batadv_choose_tt, &tt_global->common);
@@ -363,7 +364,8 @@ void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
 		tt_local->last_seen = jiffies;
 		if (tt_local->common.flags & BATADV_TT_CLIENT_PENDING) {
 			batadv_dbg(BATADV_DBG_TT, bat_priv,
-				   "Re-adding pending client %pM\n", addr);
+				   "Re-adding pending client %pM (vid: %d)\n",
+				   addr, BATADV_PRINT_VID(vid));
 			/* whatever the reason why the PENDING flag was set,
 			 * this is a client which was enqueued to be removed in
 			 * this orig_interval. Since it popped up again, the
@@ -375,8 +377,8 @@ void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
 
 		if (tt_local->common.flags & BATADV_TT_CLIENT_ROAM) {
 			batadv_dbg(BATADV_DBG_TT, bat_priv,
-				   "Roaming client %pM came back to its original location\n",
-				   addr);
+				   "Roaming client %pM (vid: %d) came back to its original location\n",
+				   addr, BATADV_PRINT_VID(vid));
 			/* the ROAM flag is set because this client roamed away
 			 * and the node got a roaming_advertisement message. Now
 			 * that the client popped up again at its original
@@ -393,7 +395,8 @@ void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
 		goto out;
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
-		   "Creating new local tt entry: %pM (ttvn: %d)\n", addr,
+		   "Creating new local tt entry: %pM (vid: %d, ttvn: %d)\n",
+		   addr, BATADV_PRINT_VID(vid),
 		   (uint8_t)atomic_read(&bat_priv->tt.vn));
 
 	memcpy(tt_local->common.addr, addr, ETH_ALEN);
@@ -562,8 +565,8 @@ int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset)
 		   "Locally retrieved addresses (from %s) announced via TT (TTVN: %u CRC: %#.8x):\n",
 		   net_dev->name, (uint8_t)atomic_read(&bat_priv->tt.vn),
 		   bat_priv->tt.local_crc);
-	seq_printf(seq, "       %-13s %-7s %-10s\n", "Client", "Flags",
-		   "Last seen");
+	seq_printf(seq, "       %-13s  %s %-7s %-10s\n", "Client", "VID",
+		   "Flags", "Last seen");
 
 	for (i = 0; i < hash->size; i++) {
 		head = &hash->table[i];
@@ -581,8 +584,9 @@ int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset)
 
 			no_purge = tt_common_entry->flags & np_flag;
 
-			seq_printf(seq, " * %pM [%c%c%c%c%c] %3u.%03u\n",
+			seq_printf(seq, " * %pM %4i [%c%c%c%c%c] %3u.%03u\n",
 				   tt_common_entry->addr,
+				   BATADV_PRINT_VID(tt_common_entry->vid),
 				   (tt_common_entry->flags &
 				    BATADV_TT_CLIENT_ROAM ? 'R' : '.'),
 				   no_purge ? 'P' : '.',
@@ -617,8 +621,9 @@ batadv_tt_local_set_pending(struct batadv_priv *bat_priv,
 	tt_local_entry->common.flags |= BATADV_TT_CLIENT_PENDING;
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
-		   "Local tt entry (%pM) pending to be removed: %s\n",
-		   tt_local_entry->common.addr, message);
+		   "Local tt entry (%pM, vid: %d) pending to be removed: %s\n",
+		   tt_local_entry->common.addr,
+		   BATADV_PRINT_VID(tt_local_entry->common.vid), message);
 }
 
 /**
@@ -996,8 +1001,9 @@ add_orig_entry:
 	batadv_tt_global_orig_entry_add(tt_global_entry, orig_node, ttvn);
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
-		   "Creating new global tt entry: %pM (via %pM)\n",
-		   common->addr, orig_node->orig);
+		   "Creating new global tt entry: %pM (vid: %d, via %pM)\n",
+		   common->addr, BATADV_PRINT_VID(common->vid),
+		   orig_node->orig);
 	ret = true;
 
 out_remove:
@@ -1077,8 +1083,9 @@ batadv_tt_global_print_entry(struct batadv_tt_global_entry *tt_global_entry,
 	if (best_entry) {
 		last_ttvn = atomic_read(&best_entry->orig_node->last_ttvn);
 		seq_printf(seq,
-			   " %c %pM  (%3u) via %pM     (%3u)   (%#.8x) [%c%c%c]\n",
+			   " %c %pM %4i   (%3u) via %pM     (%3u)   (%#.8x) [%c%c%c]\n",
 			   '*', tt_global_entry->common.addr,
+			   BATADV_PRINT_VID(tt_global_entry->common.vid),
 			   best_entry->ttvn, best_entry->orig_node->orig,
 			   last_ttvn, best_entry->orig_node->tt_crc,
 			   (flags & BATADV_TT_CLIENT_ROAM ? 'R' : '.'),
@@ -1093,8 +1100,10 @@ batadv_tt_global_print_entry(struct batadv_tt_global_entry *tt_global_entry,
 			continue;
 
 		last_ttvn = atomic_read(&orig_entry->orig_node->last_ttvn);
-		seq_printf(seq,	" %c %pM  (%3u) via %pM     (%3u)   [%c%c%c]\n",
+		seq_printf(seq,
+			   " %c %pM %4d   (%3u) via %pM     (%3u)   [%c%c%c]\n",
 			   '+', tt_global_entry->common.addr,
+			   BATADV_PRINT_VID(tt_global_entry->common.vid),
 			   orig_entry->ttvn, orig_entry->orig_node->orig,
 			   last_ttvn,
 			   (flags & BATADV_TT_CLIENT_ROAM ? 'R' : '.'),
@@ -1121,9 +1130,9 @@ int batadv_tt_global_seq_print_text(struct seq_file *seq, void *offset)
 	seq_printf(seq,
 		   "Globally announced TT entries received via the mesh %s\n",
 		   net_dev->name);
-	seq_printf(seq, "       %-13s %s       %-15s %s (%-10s) %s\n",
-		   "Client", "(TTVN)", "Originator", "(Curr TTVN)", "CRC",
-		   "Flags");
+	seq_printf(seq, "       %-13s  %s  %s       %-15s %s (%-10s) %s\n",
+		   "Client", "VID", "(TTVN)", "Originator", "(Curr TTVN)",
+		   "CRC", "Flags");
 
 	for (i = 0; i < hash->size; i++) {
 		head = &hash->table[i];
@@ -1170,15 +1179,18 @@ batadv_tt_global_del_orig_entry(struct batadv_priv *bat_priv,
 	struct hlist_head *head;
 	struct hlist_node *safe;
 	struct batadv_tt_orig_list_entry *orig_entry;
+	unsigned short vid;
 
 	spin_lock_bh(&tt_global_entry->list_lock);
 	head = &tt_global_entry->orig_list;
 	hlist_for_each_entry_safe(orig_entry, safe, head, list) {
 		if (orig_entry->orig_node == orig_node) {
+			vid = tt_global_entry->common.vid;
 			batadv_dbg(BATADV_DBG_TT, bat_priv,
-				   "Deleting %pM from global tt entry %pM: %s\n",
+				   "Deleting %pM from global tt entry %pM (vid: %d): %s\n",
 				   orig_node->orig,
-				   tt_global_entry->common.addr, message);
+				   tt_global_entry->common.addr,
+				   BATADV_PRINT_VID(vid), message);
 			hlist_del_rcu(&orig_entry->list);
 			batadv_tt_orig_list_entry_free_ref(orig_entry);
 		}
@@ -1303,6 +1315,7 @@ void batadv_tt_global_del_orig(struct batadv_priv *bat_priv,
 	struct hlist_node *safe;
 	struct hlist_head *head;
 	spinlock_t *list_lock; /* protects write access to the hash lists */
+	unsigned short vid;
 
 	if (!hash)
 		return;
@@ -1322,9 +1335,11 @@ void batadv_tt_global_del_orig(struct batadv_priv *bat_priv,
 							orig_node, message);
 
 			if (hlist_empty(&tt_global->orig_list)) {
+				vid = tt_global->common.vid;
 				batadv_dbg(BATADV_DBG_TT, bat_priv,
-					   "Deleting global tt entry %pM: %s\n",
-					   tt_global->common.addr, message);
+					   "Deleting global tt entry %pM (vid: %d): %s\n",
+					   tt_global->common.addr,
+					   BATADV_PRINT_VID(vid), message);
 				hlist_del_rcu(&tt_common_entry->hash_entry);
 				batadv_tt_global_entry_free_ref(tt_global);
 			}
@@ -1382,8 +1397,10 @@ static void batadv_tt_global_purge(struct batadv_priv *bat_priv)
 				continue;
 
 			batadv_dbg(BATADV_DBG_TT, bat_priv,
-				   "Deleting global tt entry (%pM): %s\n",
-				   tt_global->common.addr, msg);
+				   "Deleting global tt entry %pM (vid: %d): %s\n",
+				   tt_global->common.addr,
+				   BATADV_PRINT_VID(tt_global->common.vid),
+				   msg);
 
 			hlist_del_rcu(&tt_common->hash_entry);
 
@@ -2366,8 +2383,8 @@ static void batadv_send_roam_adv(struct batadv_priv *bat_priv, uint8_t *client,
 		goto out;
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
-		   "Sending ROAMING_ADV to %pM (client %pM)\n",
-		   orig_node->orig, client);
+		   "Sending ROAMING_ADV to %pM (client %pM, vid: %d)\n",
+		   orig_node->orig, client, BATADV_PRINT_VID(vid));
 
 	batadv_inc_counter(bat_priv, BATADV_CNT_TT_ROAM_ADV_TX);
 
@@ -2480,8 +2497,9 @@ static void batadv_tt_local_purge_pending_clients(struct batadv_priv *bat_priv)
 				continue;
 
 			batadv_dbg(BATADV_DBG_TT, bat_priv,
-				   "Deleting local tt entry (%pM): pending\n",
-				   tt_common->addr);
+				   "Deleting local tt entry (%pM, vid: %d): pending\n",
+				   tt_common->addr,
+				   BATADV_PRINT_VID(tt_common->vid));
 
 			atomic_dec(&bat_priv->tt.local_entry_num);
 			hlist_del_rcu(&tt_common->hash_entry);
@@ -2694,7 +2712,7 @@ out:
 bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
 					  struct batadv_orig_node *orig_node,
 					  const unsigned char *addr,
-					  unsigned short vlan)
+					  unsigned short vid)
 {
 	bool ret = false;
 
@@ -2705,14 +2723,14 @@ bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
 	if (batadv_bla_is_backbone_gw_orig(bat_priv, orig_node->orig))
 		goto out;
 
-	if (!batadv_tt_global_add(bat_priv, orig_node, addr, vlan,
+	if (!batadv_tt_global_add(bat_priv, orig_node, addr, vid,
 				  BATADV_TT_CLIENT_TEMP,
 				  atomic_read(&orig_node->last_ttvn)))
 		goto out;
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
-		   "Added temporary global client (addr: %pM orig: %pM)\n",
-		   addr, orig_node->orig);
+		   "Added temporary global client (addr: %pM, vid: %d, orig: %pM)\n",
+		   addr, BATADV_PRINT_VID(vid), orig_node->orig);
 	ret = true;
 out:
 	return ret;
-- 
cgit 


From dfb826a8b07f23ca31156979a7effec7b1f1daa8 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 18 Oct 2013 12:04:46 -0700
Subject: Bluetooth: Move HCI device features into hci_core.c

Move the handling of HCI device features debugfs into hci_core.c and
also extend it with handling of multiple feature pages.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c  | 34 +++++++++++++++++++++++++++++++++-
 net/bluetooth/hci_sysfs.c | 14 --------------
 2 files changed, 33 insertions(+), 15 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index e8058c3c9576..47fcb4983dbb 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -58,6 +58,37 @@ static void hci_notify(struct hci_dev *hdev, int event)
 
 /* ---- HCI debugfs entries ---- */
 
+static int features_show(struct seq_file *f, void *ptr)
+{
+	struct hci_dev *hdev = f->private;
+	u8 p;
+
+	hci_dev_lock(hdev);
+	for (p = 0; p < HCI_MAX_PAGES && p <= hdev->max_page; p++) {
+		seq_printf(f, "Page %u: 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x "
+			   "0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x\n", p,
+			   hdev->features[p][0], hdev->features[p][1],
+			   hdev->features[p][2], hdev->features[p][3],
+			   hdev->features[p][4], hdev->features[p][5],
+			   hdev->features[p][6], hdev->features[p][7]);
+	}
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int features_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, features_show, inode->i_private);
+}
+
+static const struct file_operations features_fops = {
+	.open		= features_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 static int blacklist_show(struct seq_file *f, void *p)
 {
 	struct hci_dev *hdev = f->private;
@@ -991,9 +1022,10 @@ static int __hci_init(struct hci_dev *hdev)
 	if (!test_bit(HCI_SETUP, &hdev->dev_flags))
 		return 0;
 
+	debugfs_create_file("features", 0444, hdev->debugfs, hdev,
+			    &features_fops);
 	debugfs_create_file("blacklist", 0444, hdev->debugfs, hdev,
 			    &blacklist_fops);
-
 	debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops);
 
 	if (lmp_bredr_capable(hdev)) {
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 4fac57c5ddb7..90142ae49e37 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -222,18 +222,6 @@ static ssize_t show_address(struct device *dev,
 	return sprintf(buf, "%pMR\n", &hdev->bdaddr);
 }
 
-static ssize_t show_features(struct device *dev,
-			     struct device_attribute *attr, char *buf)
-{
-	struct hci_dev *hdev = to_hci_dev(dev);
-
-	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
-		       hdev->features[0][0], hdev->features[0][1],
-		       hdev->features[0][2], hdev->features[0][3],
-		       hdev->features[0][4], hdev->features[0][5],
-		       hdev->features[0][6], hdev->features[0][7]);
-}
-
 static ssize_t show_manufacturer(struct device *dev,
 				 struct device_attribute *attr, char *buf)
 {
@@ -260,7 +248,6 @@ static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
 static DEVICE_ATTR(class, S_IRUGO, show_class, NULL);
 static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
-static DEVICE_ATTR(features, S_IRUGO, show_features, NULL);
 static DEVICE_ATTR(manufacturer, S_IRUGO, show_manufacturer, NULL);
 static DEVICE_ATTR(hci_version, S_IRUGO, show_hci_version, NULL);
 static DEVICE_ATTR(hci_revision, S_IRUGO, show_hci_revision, NULL);
@@ -271,7 +258,6 @@ static struct attribute *bt_host_attrs[] = {
 	&dev_attr_name.attr,
 	&dev_attr_class.attr,
 	&dev_attr_address.attr,
-	&dev_attr_features.attr,
 	&dev_attr_manufacturer.attr,
 	&dev_attr_hci_version.attr,
 	&dev_attr_hci_revision.attr,
-- 
cgit 


From 57af75a8cfec8e3c338a8542e54fe26376ea14cf Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 18 Oct 2013 12:04:47 -0700
Subject: Bluetooth: Add workaround for buggy max_page features page value

Some controllers list the max_page value from the extended features
response as 0 when SSP has not yet been enabled. To workaround this
issue, force the max_page value to 1 when SSP support has been
detected.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c  | 8 ++++++++
 net/bluetooth/hci_event.c | 3 ++-
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 47fcb4983dbb..e445f353353e 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -834,6 +834,14 @@ static void hci_init2_req(struct hci_request *req, unsigned long opt)
 		hci_req_add(req, HCI_OP_READ_LOCAL_COMMANDS, 0, NULL);
 
 	if (lmp_ssp_capable(hdev)) {
+		/* When SSP is available, then the host features page
+		 * should also be available as well. However some
+		 * controllers list the max_page as 0 as long as SSP
+		 * has not been enabled. To achieve proper debugging
+		 * output, force the minimum max_page to 1 at least.
+		 */
+		hdev->max_page = 0x01;
+
 		if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) {
 			u8 mode = 0x01;
 			hci_req_add(req, HCI_OP_WRITE_SSP_MODE,
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index e43de9876aa0..c171c0798499 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -555,7 +555,8 @@ static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
 	if (rp->status)
 		return;
 
-	hdev->max_page = rp->max_page;
+	if (hdev->max_page < rp->max_page)
+		hdev->max_page = rp->max_page;
 
 	if (rp->page < HCI_MAX_PAGES)
 		memcpy(hdev->features[rp->page], rp->features, 8);
-- 
cgit 


From f96bc0a7f4ceee53ee3ef3a2983c81f84c5d6a89 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 18 Oct 2013 12:04:48 -0700
Subject: Bluetooth: Remove debug entry for connection features

The debug entry for connection features is incomplete and also does
not work with AMP controllers and physical links. So just remove it.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_sysfs.c | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 90142ae49e37..c5aa42f6bfd1 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -37,29 +37,15 @@ static ssize_t show_link_address(struct device *dev,
 	return sprintf(buf, "%pMR\n", &conn->dst);
 }
 
-static ssize_t show_link_features(struct device *dev,
-				  struct device_attribute *attr, char *buf)
-{
-	struct hci_conn *conn = to_hci_conn(dev);
-
-	return sprintf(buf, "0x%02x%02x%02x%02x%02x%02x%02x%02x\n",
-		       conn->features[0][0], conn->features[0][1],
-		       conn->features[0][2], conn->features[0][3],
-		       conn->features[0][4], conn->features[0][5],
-		       conn->features[0][6], conn->features[0][7]);
-}
-
 #define LINK_ATTR(_name, _mode, _show, _store) \
 struct device_attribute link_attr_##_name = __ATTR(_name, _mode, _show, _store)
 
 static LINK_ATTR(type, S_IRUGO, show_link_type, NULL);
 static LINK_ATTR(address, S_IRUGO, show_link_address, NULL);
-static LINK_ATTR(features, S_IRUGO, show_link_features, NULL);
 
 static struct attribute *bt_link_attrs[] = {
 	&link_attr_type.attr,
 	&link_attr_address.attr,
-	&link_attr_features.attr,
 	NULL
 };
 
-- 
cgit 


From ceeb3bc0f1623ecb86697445fd54017e4dab1bab Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 18 Oct 2013 12:04:49 -0700
Subject: Bluetooth: Move manufacturer, hci_ver and hci_rev into hci_core.c

Move the debugfs entries for manufacturer, hci_ver and hci_rev into
hci_core.c and use the new helpers for static entries that will not
change at runtime. Once passed the setup procedure, they will stay
fixed.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c  |  4 ++++
 net/bluetooth/hci_sysfs.c | 27 ---------------------------
 2 files changed, 4 insertions(+), 27 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index e445f353353e..1d3c8920f497 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1032,6 +1032,10 @@ static int __hci_init(struct hci_dev *hdev)
 
 	debugfs_create_file("features", 0444, hdev->debugfs, hdev,
 			    &features_fops);
+	debugfs_create_u16("manufacturer", 0444, hdev->debugfs,
+			   &hdev->manufacturer);
+	debugfs_create_u8("hci_version", 0444, hdev->debugfs, &hdev->hci_ver);
+	debugfs_create_u16("hci_revision", 0444, hdev->debugfs, &hdev->hci_rev);
 	debugfs_create_file("blacklist", 0444, hdev->debugfs, hdev,
 			    &blacklist_fops);
 	debugfs_create_file("uuids", 0444, hdev->debugfs, hdev, &uuids_fops);
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index c5aa42f6bfd1..acc6a2a6f4a3 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -208,35 +208,11 @@ static ssize_t show_address(struct device *dev,
 	return sprintf(buf, "%pMR\n", &hdev->bdaddr);
 }
 
-static ssize_t show_manufacturer(struct device *dev,
-				 struct device_attribute *attr, char *buf)
-{
-	struct hci_dev *hdev = to_hci_dev(dev);
-	return sprintf(buf, "%d\n", hdev->manufacturer);
-}
-
-static ssize_t show_hci_version(struct device *dev,
-				struct device_attribute *attr, char *buf)
-{
-	struct hci_dev *hdev = to_hci_dev(dev);
-	return sprintf(buf, "%d\n", hdev->hci_ver);
-}
-
-static ssize_t show_hci_revision(struct device *dev,
-				 struct device_attribute *attr, char *buf)
-{
-	struct hci_dev *hdev = to_hci_dev(dev);
-	return sprintf(buf, "%d\n", hdev->hci_rev);
-}
-
 static DEVICE_ATTR(bus, S_IRUGO, show_bus, NULL);
 static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
 static DEVICE_ATTR(class, S_IRUGO, show_class, NULL);
 static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
-static DEVICE_ATTR(manufacturer, S_IRUGO, show_manufacturer, NULL);
-static DEVICE_ATTR(hci_version, S_IRUGO, show_hci_version, NULL);
-static DEVICE_ATTR(hci_revision, S_IRUGO, show_hci_revision, NULL);
 
 static struct attribute *bt_host_attrs[] = {
 	&dev_attr_bus.attr,
@@ -244,9 +220,6 @@ static struct attribute *bt_host_attrs[] = {
 	&dev_attr_name.attr,
 	&dev_attr_class.attr,
 	&dev_attr_address.attr,
-	&dev_attr_manufacturer.attr,
-	&dev_attr_hci_version.attr,
-	&dev_attr_hci_revision.attr,
 	NULL
 };
 
-- 
cgit 


From 0d5551f5e40c30ed8a6c1fc6bc6ea6aa96438324 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 18 Oct 2013 12:04:50 -0700
Subject: Bluetooth: Store local version information only during setup phase

The local version information from the controller can not change
since they are static. So store them only once during setup
phase and not bother overwriting them every time this command
gets executed.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_event.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index c171c0798499..848045223e98 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -468,14 +468,13 @@ static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
 	if (rp->status)
 		return;
 
-	hdev->hci_ver = rp->hci_ver;
-	hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
-	hdev->lmp_ver = rp->lmp_ver;
-	hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
-	hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
-
-	BT_DBG("%s manufacturer 0x%4.4x hci ver %d:%d", hdev->name,
-	       hdev->manufacturer, hdev->hci_ver, hdev->hci_rev);
+	if (test_bit(HCI_SETUP, &hdev->dev_flags)) {
+		hdev->hci_ver = rp->hci_ver;
+		hdev->hci_rev = __le16_to_cpu(rp->hci_rev);
+		hdev->lmp_ver = rp->lmp_ver;
+		hdev->manufacturer = __le16_to_cpu(rp->manufacturer);
+		hdev->lmp_subver = __le16_to_cpu(rp->lmp_subver);
+	}
 }
 
 static void hci_cc_read_local_commands(struct hci_dev *hdev,
-- 
cgit 


From babdbb3c130bf8b6e58811a9cf4764eb68004d25 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 18 Oct 2013 12:04:51 -0700
Subject: Bluetooth: Move export of class of device information into hci_core.c

The class of device debugfs information should be directly exported
from hci_core.c and so move them over there.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c  | 26 ++++++++++++++++++++++++++
 net/bluetooth/hci_sysfs.c | 10 ----------
 2 files changed, 26 insertions(+), 10 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 1d3c8920f497..3ef5fdde8437 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -187,6 +187,30 @@ static const struct file_operations inquiry_cache_fops = {
 	.release	= single_release,
 };
 
+static int dev_class_show(struct seq_file *f, void *ptr)
+{
+	struct hci_dev *hdev = f->private;
+
+	hci_dev_lock(hdev);
+	seq_printf(f, "0x%.2x%.2x%.2x\n", hdev->dev_class[2],
+		   hdev->dev_class[1], hdev->dev_class[0]);
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int dev_class_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, dev_class_show, inode->i_private);
+}
+
+static const struct file_operations dev_class_fops = {
+	.open		= dev_class_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 static int voice_setting_get(void *data, u64 *val)
 {
 	struct hci_dev *hdev = data;
@@ -1043,6 +1067,8 @@ static int __hci_init(struct hci_dev *hdev)
 	if (lmp_bredr_capable(hdev)) {
 		debugfs_create_file("inquiry_cache", 0444, hdev->debugfs,
 				    hdev, &inquiry_cache_fops);
+		debugfs_create_file("dev_class", 0444, hdev->debugfs,
+				    hdev, &dev_class_fops);
 		debugfs_create_file("voice_setting", 0444, hdev->debugfs,
 				    hdev, &voice_setting_fops);
 	}
diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index acc6a2a6f4a3..95fc5bb09d95 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -193,14 +193,6 @@ static ssize_t show_name(struct device *dev,
 	return sprintf(buf, "%s\n", name);
 }
 
-static ssize_t show_class(struct device *dev,
-			  struct device_attribute *attr, char *buf)
-{
-	struct hci_dev *hdev = to_hci_dev(dev);
-	return sprintf(buf, "0x%.2x%.2x%.2x\n", hdev->dev_class[2],
-		       hdev->dev_class[1], hdev->dev_class[0]);
-}
-
 static ssize_t show_address(struct device *dev,
 			    struct device_attribute *attr, char *buf)
 {
@@ -211,14 +203,12 @@ static ssize_t show_address(struct device *dev,
 static DEVICE_ATTR(bus, S_IRUGO, show_bus, NULL);
 static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
-static DEVICE_ATTR(class, S_IRUGO, show_class, NULL);
 static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
 
 static struct attribute *bt_host_attrs[] = {
 	&dev_attr_bus.attr,
 	&dev_attr_type.attr,
 	&dev_attr_name.attr,
-	&dev_attr_class.attr,
 	&dev_attr_address.attr,
 	NULL
 };
-- 
cgit 


From 02d08d15e0dae9f571c66cc7529a0138bbae1506 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 18 Oct 2013 12:04:52 -0700
Subject: Bluetooth: Expose current list of link keys via debugfs

For debugging purposes expose the current list of link keys via
debugfs. This file is read-only and limited to root access.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 3ef5fdde8437..ee946cb26906 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -187,6 +187,34 @@ static const struct file_operations inquiry_cache_fops = {
 	.release	= single_release,
 };
 
+static int link_keys_show(struct seq_file *f, void *ptr)
+{
+	struct hci_dev *hdev = f->private;
+	struct list_head *p, *n;
+
+	hci_dev_lock(hdev);
+	list_for_each_safe(p, n, &hdev->link_keys) {
+		struct link_key *key = list_entry(p, struct link_key, list);
+		seq_printf(f, "%pMR %u %*phN %u\n", &key->bdaddr, key->type,
+			   HCI_LINK_KEY_SIZE, key->val, key->pin_len);
+	}
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int link_keys_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, link_keys_show, inode->i_private);
+}
+
+static const struct file_operations link_keys_fops = {
+	.open		= link_keys_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 static int dev_class_show(struct seq_file *f, void *ptr)
 {
 	struct hci_dev *hdev = f->private;
@@ -1067,6 +1095,8 @@ static int __hci_init(struct hci_dev *hdev)
 	if (lmp_bredr_capable(hdev)) {
 		debugfs_create_file("inquiry_cache", 0444, hdev->debugfs,
 				    hdev, &inquiry_cache_fops);
+		debugfs_create_file("link_keys", 0400, hdev->debugfs,
+				    hdev, &link_keys_fops);
 		debugfs_create_file("dev_class", 0444, hdev->debugfs,
 				    hdev, &dev_class_fops);
 		debugfs_create_file("voice_setting", 0444, hdev->debugfs,
-- 
cgit 


From e132f7f6a2df7b186563775e79c7ab3612ec8116 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 18 Oct 2013 12:39:27 -0700
Subject: Bluetooth: Remove bus attribute in favor of hierarchy

The bus information are exposed in the actual hierarchy and should
not be exposed as attribute.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_sysfs.c | 31 -------------------------------
 1 file changed, 31 deletions(-)

diff --git a/net/bluetooth/hci_sysfs.c b/net/bluetooth/hci_sysfs.c
index 95fc5bb09d95..0b61250cfdf9 100644
--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -131,28 +131,6 @@ void hci_conn_del_sysfs(struct hci_conn *conn)
 	hci_dev_put(hdev);
 }
 
-static inline char *host_bustostr(int bus)
-{
-	switch (bus) {
-	case HCI_VIRTUAL:
-		return "VIRTUAL";
-	case HCI_USB:
-		return "USB";
-	case HCI_PCCARD:
-		return "PCCARD";
-	case HCI_UART:
-		return "UART";
-	case HCI_RS232:
-		return "RS232";
-	case HCI_PCI:
-		return "PCI";
-	case HCI_SDIO:
-		return "SDIO";
-	default:
-		return "UNKNOWN";
-	}
-}
-
 static inline char *host_typetostr(int type)
 {
 	switch (type) {
@@ -165,13 +143,6 @@ static inline char *host_typetostr(int type)
 	}
 }
 
-static ssize_t show_bus(struct device *dev,
-			struct device_attribute *attr, char *buf)
-{
-	struct hci_dev *hdev = to_hci_dev(dev);
-	return sprintf(buf, "%s\n", host_bustostr(hdev->bus));
-}
-
 static ssize_t show_type(struct device *dev,
 			 struct device_attribute *attr, char *buf)
 {
@@ -200,13 +171,11 @@ static ssize_t show_address(struct device *dev,
 	return sprintf(buf, "%pMR\n", &hdev->bdaddr);
 }
 
-static DEVICE_ATTR(bus, S_IRUGO, show_bus, NULL);
 static DEVICE_ATTR(type, S_IRUGO, show_type, NULL);
 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
 static DEVICE_ATTR(address, S_IRUGO, show_address, NULL);
 
 static struct attribute *bt_host_attrs[] = {
-	&dev_attr_bus.attr,
 	&dev_attr_type.attr,
 	&dev_attr_name.attr,
 	&dev_attr_address.attr,
-- 
cgit 


From d0f729b8c1d8be495d3fc5fdeca2a7093280e85e Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 18 Oct 2013 15:23:46 -0700
Subject: Bluetooth: Expose white list size information in debugfs

Knowing the white list size information is important for
debugging. So export it via debugfs.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index ee946cb26906..8710d1febee7 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1116,9 +1116,12 @@ static int __hci_init(struct hci_dev *hdev)
 				    hdev, &sniff_max_interval_fops);
 	}
 
-	if (lmp_le_capable(hdev))
+	if (lmp_le_capable(hdev)) {
+		debugfs_create_u8("white_list_size", 0444, hdev->debugfs,
+				  &hdev->le_white_list_size);
 		debugfs_create_file("static_address", 0444, hdev->debugfs,
 				   hdev, &static_address_fops);
+	}
 
 	return 0;
 }
-- 
cgit 


From 8f8625cd8067827e2450e4ddec20f5521896114a Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 18 Oct 2013 15:56:57 -0700
Subject: Bluetooth: Expose current list of long term keys via debugfs

For debugging purposes expose the current list of long term keys
via debugfs. This file is read-only and limited to root access.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 8710d1febee7..6b1844f00fbf 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -385,6 +385,36 @@ static const struct file_operations static_address_fops = {
 	.release	= single_release,
 };
 
+static int long_term_keys_show(struct seq_file *f, void *ptr)
+{
+	struct hci_dev *hdev = f->private;
+	struct list_head *p, *n;
+
+	hci_dev_lock(hdev);
+	list_for_each_safe(p, n, &hdev->link_keys) {
+		struct smp_ltk *ltk = list_entry(p, struct smp_ltk, list);
+		seq_printf(f, "%pMR (type %u) %u %u %u %.4x %*phN %*phN\\n",
+			   &ltk->bdaddr, ltk->bdaddr_type, ltk->authenticated,
+			   ltk->type, ltk->enc_size, __le16_to_cpu(ltk->ediv),
+			   8, ltk->rand, 16, ltk->val);
+	}
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int long_term_keys_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, long_term_keys_show, inode->i_private);
+}
+
+static const struct file_operations long_term_keys_fops = {
+	.open		= long_term_keys_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 /* ---- HCI requests ---- */
 
 static void hci_req_sync_complete(struct hci_dev *hdev, u8 result)
@@ -1121,6 +1151,8 @@ static int __hci_init(struct hci_dev *hdev)
 				  &hdev->le_white_list_size);
 		debugfs_create_file("static_address", 0444, hdev->debugfs,
 				   hdev, &static_address_fops);
+		debugfs_create_file("long_term_keys", 0400, hdev->debugfs,
+				    hdev, &long_term_keys_fops);
 	}
 
 	return 0;
-- 
cgit 


From 79830f66e3cbd224bcf697b032dce9828b5a3c9e Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 18 Oct 2013 16:38:09 -0700
Subject: Bluetooth: Select the own address type during initial setup phase

The own address type is based on the fact if the controller has
a public address or not. This means that this detail can be just
configured once during setup phase.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h |  1 +
 net/bluetooth/hci_conn.c         |  7 +------
 net/bluetooth/hci_core.c         | 13 ++++++++++++-
 net/bluetooth/mgmt.c             | 10 ++--------
 4 files changed, 16 insertions(+), 15 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 9b5db01bd1a2..0daac39c1b6e 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -142,6 +142,7 @@ struct hci_dev {
 	__u8		dev_type;
 	bdaddr_t	bdaddr;
 	bdaddr_t	static_addr;
+	__u8		own_addr_type;
 	__u8		dev_name[HCI_MAX_NAME_LENGTH];
 	__u8		short_name[HCI_MAX_SHORT_NAME_LENGTH];
 	__u8		eir[HCI_MAX_EIR_LENGTH];
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 4e726505f52b..974d7bccbb6f 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -615,12 +615,7 @@ static struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst,
 	else
 		conn->dst_type = ADDR_LE_DEV_RANDOM;
 
-	if (bacmp(&conn->src, BDADDR_ANY)) {
-		conn->src_type = ADDR_LE_DEV_PUBLIC;
-	} else {
-		bacpy(&conn->src, &hdev->static_addr);
-		conn->src_type = ADDR_LE_DEV_RANDOM;
-	}
+	conn->src_type = hdev->own_addr_type;
 
 	conn->state = BT_CONNECT;
 	conn->out = true;
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 6b1844f00fbf..c130a239c0de 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1053,8 +1053,19 @@ static void hci_init3_req(struct hci_request *req, unsigned long opt)
 	if (hdev->commands[5] & 0x10)
 		hci_setup_link_policy(req);
 
-	if (lmp_le_capable(hdev))
+	if (lmp_le_capable(hdev)) {
+		/* If the controller has a public BD_ADDR, then by
+		 * default use that one. If this is a LE only
+		 * controller without one, default to the random
+		 * address.
+		 */
+		if (bacmp(&hdev->bdaddr, BDADDR_ANY))
+			hdev->own_addr_type = ADDR_LE_DEV_PUBLIC;
+		else
+			hdev->own_addr_type = ADDR_LE_DEV_RANDOM;
+
 		hci_set_le_support(req);
+	}
 
 	/* Read features beyond page 1 if available */
 	for (p = 2; p < HCI_MAX_PAGES && p <= hdev->max_page; p++) {
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index a727b47fcac5..fb7fc9f17af1 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1325,10 +1325,7 @@ static void enable_advertising(struct hci_request *req)
 	cp.min_interval = __constant_cpu_to_le16(0x0800);
 	cp.max_interval = __constant_cpu_to_le16(0x0800);
 	cp.type = get_adv_type(hdev);
-	if (bacmp(&hdev->bdaddr, BDADDR_ANY))
-		cp.own_address_type = ADDR_LE_DEV_PUBLIC;
-	else
-		cp.own_address_type = ADDR_LE_DEV_RANDOM;
+	cp.own_address_type = hdev->own_addr_type;
 	cp.channel_map = 0x07;
 
 	hci_req_add(req, HCI_OP_LE_SET_ADV_PARAM, sizeof(cp), &cp);
@@ -3237,10 +3234,7 @@ static int start_discovery(struct sock *sk, struct hci_dev *hdev,
 		param_cp.type = LE_SCAN_ACTIVE;
 		param_cp.interval = cpu_to_le16(DISCOV_LE_SCAN_INT);
 		param_cp.window = cpu_to_le16(DISCOV_LE_SCAN_WIN);
-		if (bacmp(&hdev->bdaddr, BDADDR_ANY))
-			param_cp.own_address_type = ADDR_LE_DEV_PUBLIC;
-		else
-			param_cp.own_address_type = ADDR_LE_DEV_RANDOM;
+		param_cp.own_address_type = hdev->own_addr_type;
 		hci_req_add(&req, HCI_OP_LE_SET_SCAN_PARAM, sizeof(param_cp),
 			    &param_cp);
 
-- 
cgit 


From 922021854bd8a0221fcb05aec2c13409cffb924e Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 18 Oct 2013 16:38:10 -0700
Subject: Bluetooth: Expose debugfs entry read/write own address type

For some testing it is important to know the current own addres type,
but also be able to change it. The change is lost over powery cycles
and only intended for debugging.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index c130a239c0de..d47c8ec90ca0 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -385,6 +385,34 @@ static const struct file_operations static_address_fops = {
 	.release	= single_release,
 };
 
+static int own_address_type_set(void *data, u64 val)
+{
+	struct hci_dev *hdev = data;
+
+	if (val != 0 && val != 1)
+		return -EINVAL;
+
+	hci_dev_lock(hdev);
+	hdev->own_addr_type = val;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int own_address_type_get(void *data, u64 *val)
+{
+	struct hci_dev *hdev = data;
+
+	hci_dev_lock(hdev);
+	*val = hdev->own_addr_type;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(own_address_type_fops, own_address_type_get,
+			own_address_type_set, "%llu\n");
+
 static int long_term_keys_show(struct seq_file *f, void *ptr)
 {
 	struct hci_dev *hdev = f->private;
@@ -1162,6 +1190,8 @@ static int __hci_init(struct hci_dev *hdev)
 				  &hdev->le_white_list_size);
 		debugfs_create_file("static_address", 0444, hdev->debugfs,
 				   hdev, &static_address_fops);
+		debugfs_create_file("own_address_type", 0644, hdev->debugfs,
+				    hdev, &own_address_type_fops);
 		debugfs_create_file("long_term_keys", 0400, hdev->debugfs,
 				    hdev, &long_term_keys_fops);
 	}
-- 
cgit 


From 12c269d7e30ab044849eb1ae0c8e4850582f3c7b Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Fri, 18 Oct 2013 17:14:22 -0700
Subject: Bluetooth: Expose setting if debug keys are used or not

The system can be figured to accept and use debug keys. Expose this
value in debugfs for debugging purposes.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index d47c8ec90ca0..94d5342a4da6 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -215,6 +215,24 @@ static const struct file_operations link_keys_fops = {
 	.release	= single_release,
 };
 
+static ssize_t use_debug_keys_read(struct file *file, char __user *user_buf,
+				   size_t count, loff_t *ppos)
+{
+	struct hci_dev *hdev = file->private_data;
+	char buf[3];
+
+	buf[0] = test_bit(HCI_DEBUG_KEYS, &hdev->dev_flags) ? 'Y': 'N';
+	buf[1] = '\n';
+	buf[2] = '\0';
+	return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
+}
+
+static const struct file_operations use_debug_keys_fops = {
+	.open		= simple_open,
+	.read		= use_debug_keys_read,
+	.llseek		= default_llseek,
+};
+
 static int dev_class_show(struct seq_file *f, void *ptr)
 {
 	struct hci_dev *hdev = f->private;
@@ -1166,6 +1184,8 @@ static int __hci_init(struct hci_dev *hdev)
 				    hdev, &inquiry_cache_fops);
 		debugfs_create_file("link_keys", 0400, hdev->debugfs,
 				    hdev, &link_keys_fops);
+		debugfs_create_file("use_debug_keys", 0444, hdev->debugfs,
+				    hdev, &use_debug_keys_fops);
 		debugfs_create_file("dev_class", 0444, hdev->debugfs,
 				    hdev, &dev_class_fops);
 		debugfs_create_file("voice_setting", 0444, hdev->debugfs,
-- 
cgit 


From 0963d59bc0bbed48b06733950f5eb167e9b9a8fa Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Sat, 19 Oct 2013 15:39:17 +0200
Subject: Fixup "MAINTAINERS: GPIO-INTEL-MID: add maintainer"

This reverts commit ee0f5b390a0d7375a8b6af4cb0e167692e5e8a10.
The MAINTAINERS entry was not in alphabetic order.

Assign david.a.cohen@linux.intel.com as maintainer of Intel MID gpio
driver at drivers/gpio/gpio-intel-mid.c. Now do it in
alphabetic order instead.

Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 MAINTAINERS | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 7534a8042f06..aa8c915423e3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1910,12 +1910,6 @@ W:	http://bu3sch.de/btgpio.php
 S:	Maintained
 F:	drivers/gpio/gpio-bt8xx.c
 
-INTEL-MID GPIO DRIVER
-M:	David Cohen <david.a.cohen@linux.intel.com>
-L:	linux-gpio@vger.kernel.org
-S:	Maintained
-F:	drivers/gpio/gpio-intel-mid.c
-
 BTRFS FILE SYSTEM
 M:	Chris Mason <chris.mason@fusionio.com>
 L:	linux-btrfs@vger.kernel.org
@@ -4416,6 +4410,12 @@ F:	Documentation/networking/ixgbevf.txt
 F:	Documentation/networking/i40e.txt
 F:	drivers/net/ethernet/intel/
 
+INTEL-MID GPIO DRIVER
+M:	David Cohen <david.a.cohen@linux.intel.com>
+L:	linux-gpio@vger.kernel.org
+S:	Maintained
+F:	drivers/gpio/gpio-intel-mid.c
+
 INTEL PRO/WIRELESS 2100, 2200BG, 2915ABG NETWORK CONNECTION SUPPORT
 M:	Stanislav Yakovlev <stas.yakovlev@gmail.com>
 L:	linux-wireless@vger.kernel.org
-- 
cgit 


From cfbb2b5b91e2f89cbd3a2f90bf807192a227355d Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 19 Oct 2013 02:25:33 -0700
Subject: Bluetooth: Add LE features to debugfs if available

For LE capable controllers at the special LE features page to the
debugfs list with all the other features pages.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 94d5342a4da6..384b9db16f69 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -65,13 +65,20 @@ static int features_show(struct seq_file *f, void *ptr)
 
 	hci_dev_lock(hdev);
 	for (p = 0; p < HCI_MAX_PAGES && p <= hdev->max_page; p++) {
-		seq_printf(f, "Page %u: 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x "
+		seq_printf(f, "%2u: 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x "
 			   "0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x\n", p,
 			   hdev->features[p][0], hdev->features[p][1],
 			   hdev->features[p][2], hdev->features[p][3],
 			   hdev->features[p][4], hdev->features[p][5],
 			   hdev->features[p][6], hdev->features[p][7]);
 	}
+	if (lmp_le_capable(hdev))
+		seq_printf(f, "LE: 0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x "
+			   "0x%2.2x 0x%2.2x 0x%2.2x 0x%2.2x\n",
+			   hdev->le_features[0], hdev->le_features[1],
+			   hdev->le_features[2], hdev->le_features[3],
+			   hdev->le_features[4], hdev->le_features[5],
+			   hdev->le_features[6], hdev->le_features[7]);
 	hci_dev_unlock(hdev);
 
 	return 0;
-- 
cgit 


From 3497ac84bd35bc5b984a3a20625021bfb0ca3f37 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 19 Oct 2013 05:26:57 -0700
Subject: Bluetooth: Remove interval parameter from HCI connection

The conn->interval parameter of HCI connections is not used at all
and so just remove it.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h | 1 -
 net/bluetooth/hci_event.c        | 1 -
 2 files changed, 2 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 0daac39c1b6e..c689bcf4a0f7 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -315,7 +315,6 @@ struct hci_conn {
 	__u8		attempt;
 	__u8		dev_class[3];
 	__u8		features[HCI_MAX_PAGES][8];
-	__u16		interval;
 	__u16		pkt_type;
 	__u16		link_policy;
 	__u32		link_mode;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 848045223e98..1214d4b6f541 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2549,7 +2549,6 @@ static void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
 	conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
 	if (conn) {
 		conn->mode = ev->mode;
-		conn->interval = __le16_to_cpu(ev->interval);
 
 		if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND,
 					&conn->flags)) {
-- 
cgit 


From bbb877ed777236669ed14b5957ae72117f3b3129 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 4 Jun 2013 12:11:42 +0200
Subject: batman-adv: make the GW module correctly talk to the new VLAN-TT

The gateway code is now adapted in order to correctly
interact with the Translation Table component by using the
vlan ID

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/gateway_client.c | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index a9209466ddaf..4ed410f73de4 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -726,7 +726,20 @@ bool batadv_gw_is_dhcp_target(struct sk_buff *skb, unsigned int *header_len)
 	return true;
 }
 
-/* this call might reallocate skb data */
+/**
+ * batadv_gw_out_of_range - check if the dhcp request destination is the best gw
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: the outgoing packet
+ *
+ * Check if the skb is a DHCP request and if it is sent to the current best GW
+ * server. Due to topology changes it may be the case that the GW server
+ * previously selected is not the best one anymore.
+ *
+ * Returns true if the packet destination is unicast and it is not the best gw,
+ * false otherwise.
+ *
+ * This call might reallocate skb data.
+ */
 bool batadv_gw_out_of_range(struct batadv_priv *bat_priv,
 			    struct sk_buff *skb)
 {
@@ -737,6 +750,9 @@ bool batadv_gw_out_of_range(struct batadv_priv *bat_priv,
 	bool ret, out_of_range = false;
 	unsigned int header_len = 0;
 	uint8_t curr_tq_avg;
+	unsigned short vid;
+
+	vid = batadv_get_vid(skb, 0);
 
 	ret = batadv_gw_is_dhcp_target(skb, &header_len);
 	if (!ret)
@@ -744,8 +760,7 @@ bool batadv_gw_out_of_range(struct batadv_priv *bat_priv,
 
 	ethhdr = (struct ethhdr *)skb->data;
 	orig_dst_node = batadv_transtable_search(bat_priv, ethhdr->h_source,
-						 ethhdr->h_dest,
-						 BATADV_NO_FLAGS);
+						 ethhdr->h_dest, vid);
 	if (!orig_dst_node)
 		goto out;
 
-- 
cgit 


From be1db4f6615b5e6156c807ea8985171c215c2d57 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 4 Jun 2013 12:11:43 +0200
Subject: batman-adv: make the Distributed ARP Table vlan aware

The same IP subnet can be used on different VLANs, therefore
DAT has to differentiate whether the IP to resolve belongs
to one or the other virtual LAN.
To accomplish this task DAT has to deal with the VLAN tag
and store it together with each ARP entry.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/distributed-arp-table.c | 153 ++++++++++++++++++++++-----------
 net/batman-adv/types.h                 |   2 +
 2 files changed, 107 insertions(+), 48 deletions(-)

diff --git a/net/batman-adv/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c
index 1b590f01f824..47dbe9a53e91 100644
--- a/net/batman-adv/distributed-arp-table.c
+++ b/net/batman-adv/distributed-arp-table.c
@@ -19,6 +19,7 @@
 
 #include <linux/if_ether.h>
 #include <linux/if_arp.h>
+#include <linux/if_vlan.h>
 #include <net/arp.h>
 
 #include "main.h"
@@ -205,15 +206,11 @@ static __be32 batadv_arp_ip_dst(struct sk_buff *skb, int hdr_size)
  */
 static uint32_t batadv_hash_dat(const void *data, uint32_t size)
 {
-	const unsigned char *key = data;
 	uint32_t hash = 0;
-	size_t i;
+	const struct batadv_dat_entry *dat = data;
 
-	for (i = 0; i < 4; i++) {
-		hash += key[i];
-		hash += (hash << 10);
-		hash ^= (hash >> 6);
-	}
+	hash = batadv_hash_bytes(hash, &dat->ip, sizeof(dat->ip));
+	hash = batadv_hash_bytes(hash, &dat->vid, sizeof(dat->vid));
 
 	hash += (hash << 3);
 	hash ^= (hash >> 11);
@@ -227,21 +224,26 @@ static uint32_t batadv_hash_dat(const void *data, uint32_t size)
  * table
  * @bat_priv: the bat priv with all the soft interface information
  * @ip: search key
+ * @vid: VLAN identifier
  *
  * Returns the dat_entry if found, NULL otherwise.
  */
 static struct batadv_dat_entry *
-batadv_dat_entry_hash_find(struct batadv_priv *bat_priv, __be32 ip)
+batadv_dat_entry_hash_find(struct batadv_priv *bat_priv, __be32 ip,
+			   unsigned short vid)
 {
 	struct hlist_head *head;
-	struct batadv_dat_entry *dat_entry, *dat_entry_tmp = NULL;
+	struct batadv_dat_entry to_find, *dat_entry, *dat_entry_tmp = NULL;
 	struct batadv_hashtable *hash = bat_priv->dat.hash;
 	uint32_t index;
 
 	if (!hash)
 		return NULL;
 
-	index = batadv_hash_dat(&ip, hash->size);
+	to_find.ip = ip;
+	to_find.vid = vid;
+
+	index = batadv_hash_dat(&to_find, hash->size);
 	head = &hash->table[index];
 
 	rcu_read_lock();
@@ -265,22 +267,24 @@ batadv_dat_entry_hash_find(struct batadv_priv *bat_priv, __be32 ip)
  * @bat_priv: the bat priv with all the soft interface information
  * @ip: ipv4 to add/edit
  * @mac_addr: mac address to assign to the given ipv4
+ * @vid: VLAN identifier
  */
 static void batadv_dat_entry_add(struct batadv_priv *bat_priv, __be32 ip,
-				 uint8_t *mac_addr)
+				 uint8_t *mac_addr, unsigned short vid)
 {
 	struct batadv_dat_entry *dat_entry;
 	int hash_added;
 
-	dat_entry = batadv_dat_entry_hash_find(bat_priv, ip);
+	dat_entry = batadv_dat_entry_hash_find(bat_priv, ip, vid);
 	/* if this entry is already known, just update it */
 	if (dat_entry) {
 		if (!batadv_compare_eth(dat_entry->mac_addr, mac_addr))
 			memcpy(dat_entry->mac_addr, mac_addr, ETH_ALEN);
 		dat_entry->last_update = jiffies;
 		batadv_dbg(BATADV_DBG_DAT, bat_priv,
-			   "Entry updated: %pI4 %pM\n", &dat_entry->ip,
-			   dat_entry->mac_addr);
+			   "Entry updated: %pI4 %pM (vid: %d)\n",
+			   &dat_entry->ip, dat_entry->mac_addr,
+			   BATADV_PRINT_VID(vid));
 		goto out;
 	}
 
@@ -289,12 +293,13 @@ static void batadv_dat_entry_add(struct batadv_priv *bat_priv, __be32 ip,
 		goto out;
 
 	dat_entry->ip = ip;
+	dat_entry->vid = vid;
 	memcpy(dat_entry->mac_addr, mac_addr, ETH_ALEN);
 	dat_entry->last_update = jiffies;
 	atomic_set(&dat_entry->refcount, 2);
 
 	hash_added = batadv_hash_add(bat_priv->dat.hash, batadv_compare_dat,
-				     batadv_hash_dat, &dat_entry->ip,
+				     batadv_hash_dat, dat_entry,
 				     &dat_entry->hash_entry);
 
 	if (unlikely(hash_added != 0)) {
@@ -303,8 +308,8 @@ static void batadv_dat_entry_add(struct batadv_priv *bat_priv, __be32 ip,
 		goto out;
 	}
 
-	batadv_dbg(BATADV_DBG_DAT, bat_priv, "New entry added: %pI4 %pM\n",
-		   &dat_entry->ip, dat_entry->mac_addr);
+	batadv_dbg(BATADV_DBG_DAT, bat_priv, "New entry added: %pI4 %pM (vid: %d)\n",
+		   &dat_entry->ip, dat_entry->mac_addr, BATADV_PRINT_VID(vid));
 
 out:
 	if (dat_entry)
@@ -756,8 +761,8 @@ int batadv_dat_cache_seq_print_text(struct seq_file *seq, void *offset)
 		goto out;
 
 	seq_printf(seq, "Distributed ARP Table (%s):\n", net_dev->name);
-	seq_printf(seq, "          %-7s          %-13s %5s\n", "IPv4", "MAC",
-		   "last-seen");
+	seq_printf(seq, "          %-7s          %-9s %4s %11s\n", "IPv4",
+		   "MAC", "VID", "last-seen");
 
 	for (i = 0; i < hash->size; i++) {
 		head = &hash->table[i];
@@ -770,8 +775,9 @@ int batadv_dat_cache_seq_print_text(struct seq_file *seq, void *offset)
 			last_seen_msecs = last_seen_msecs % 60000;
 			last_seen_secs = last_seen_msecs / 1000;
 
-			seq_printf(seq, " * %15pI4 %14pM %6i:%02i\n",
+			seq_printf(seq, " * %15pI4 %14pM %4i %6i:%02i\n",
 				   &dat_entry->ip, dat_entry->mac_addr,
+				   BATADV_PRINT_VID(dat_entry->vid),
 				   last_seen_mins, last_seen_secs);
 		}
 		rcu_read_unlock();
@@ -857,6 +863,31 @@ out:
 	return type;
 }
 
+/**
+ * batadv_dat_get_vid - extract the VLAN identifier from skb if any
+ * @skb: the buffer containing the packet to extract the VID from
+ * @hdr_size: the size of the batman-adv header encapsulating the packet
+ *
+ * If the packet embedded in the skb is vlan tagged this function returns the
+ * VID with the BATADV_VLAN_HAS_TAG flag. Otherwise BATADV_NO_FLAGS is returned.
+ */
+static unsigned short batadv_dat_get_vid(struct sk_buff *skb, int *hdr_size)
+{
+	unsigned short vid;
+
+	vid = batadv_get_vid(skb, *hdr_size);
+
+	/* ARP parsing functions jump forward of hdr_size + ETH_HLEN.
+	 * If the header contained in the packet is a VLAN one (which is longer)
+	 * hdr_size is updated so that the functions will still skip the
+	 * correct amount of bytes.
+	 */
+	if (vid & BATADV_VLAN_HAS_TAG)
+		*hdr_size += VLAN_HLEN;
+
+	return vid;
+}
+
 /**
  * batadv_dat_snoop_outgoing_arp_request - snoop the ARP request and try to
  * answer using DAT
@@ -876,26 +907,31 @@ bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
 	bool ret = false;
 	struct batadv_dat_entry *dat_entry = NULL;
 	struct sk_buff *skb_new;
+	int hdr_size = 0;
+	unsigned short vid;
 
 	if (!atomic_read(&bat_priv->distributed_arp_table))
 		goto out;
 
-	type = batadv_arp_get_type(bat_priv, skb, 0);
+	vid = batadv_dat_get_vid(skb, &hdr_size);
+
+	type = batadv_arp_get_type(bat_priv, skb, hdr_size);
 	/* If the node gets an ARP_REQUEST it has to send a DHT_GET unicast
 	 * message to the selected DHT candidates
 	 */
 	if (type != ARPOP_REQUEST)
 		goto out;
 
-	batadv_dbg_arp(bat_priv, skb, type, 0, "Parsing outgoing ARP REQUEST");
+	batadv_dbg_arp(bat_priv, skb, type, hdr_size,
+		       "Parsing outgoing ARP REQUEST");
 
-	ip_src = batadv_arp_ip_src(skb, 0);
-	hw_src = batadv_arp_hw_src(skb, 0);
-	ip_dst = batadv_arp_ip_dst(skb, 0);
+	ip_src = batadv_arp_ip_src(skb, hdr_size);
+	hw_src = batadv_arp_hw_src(skb, hdr_size);
+	ip_dst = batadv_arp_ip_dst(skb, hdr_size);
 
-	batadv_dat_entry_add(bat_priv, ip_src, hw_src);
+	batadv_dat_entry_add(bat_priv, ip_src, hw_src, vid);
 
-	dat_entry = batadv_dat_entry_hash_find(bat_priv, ip_dst);
+	dat_entry = batadv_dat_entry_hash_find(bat_priv, ip_dst, vid);
 	if (dat_entry) {
 		/* If the ARP request is destined for a local client the local
 		 * client will answer itself. DAT would only generate a
@@ -917,11 +953,15 @@ bool batadv_dat_snoop_outgoing_arp_request(struct batadv_priv *bat_priv,
 		if (!skb_new)
 			goto out;
 
+		if (vid & BATADV_VLAN_HAS_TAG)
+			skb_new = vlan_insert_tag(skb_new, htons(ETH_P_8021Q),
+						  vid & VLAN_VID_MASK);
+
 		skb_reset_mac_header(skb_new);
 		skb_new->protocol = eth_type_trans(skb_new,
 						   bat_priv->soft_iface);
 		bat_priv->stats.rx_packets++;
-		bat_priv->stats.rx_bytes += skb->len + ETH_HLEN;
+		bat_priv->stats.rx_bytes += skb->len + ETH_HLEN + hdr_size;
 		bat_priv->soft_iface->last_rx = jiffies;
 
 		netif_rx(skb_new);
@@ -956,11 +996,14 @@ bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv,
 	struct sk_buff *skb_new;
 	struct batadv_dat_entry *dat_entry = NULL;
 	bool ret = false;
+	unsigned short vid;
 	int err;
 
 	if (!atomic_read(&bat_priv->distributed_arp_table))
 		goto out;
 
+	vid = batadv_dat_get_vid(skb, &hdr_size);
+
 	type = batadv_arp_get_type(bat_priv, skb, hdr_size);
 	if (type != ARPOP_REQUEST)
 		goto out;
@@ -972,9 +1015,9 @@ bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv,
 	batadv_dbg_arp(bat_priv, skb, type, hdr_size,
 		       "Parsing incoming ARP REQUEST");
 
-	batadv_dat_entry_add(bat_priv, ip_src, hw_src);
+	batadv_dat_entry_add(bat_priv, ip_src, hw_src, vid);
 
-	dat_entry = batadv_dat_entry_hash_find(bat_priv, ip_dst);
+	dat_entry = batadv_dat_entry_hash_find(bat_priv, ip_dst, vid);
 	if (!dat_entry)
 		goto out;
 
@@ -985,6 +1028,10 @@ bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv,
 	if (!skb_new)
 		goto out;
 
+	if (vid & BATADV_VLAN_HAS_TAG)
+		skb_new = vlan_insert_tag(skb_new, htons(ETH_P_8021Q),
+					  vid & VLAN_VID_MASK);
+
 	/* To preserve backwards compatibility, the node has choose the outgoing
 	 * format based on the incoming request packet type. The assumption is
 	 * that a node not using the 4addr packet format doesn't support it.
@@ -992,10 +1039,9 @@ bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv,
 	if (hdr_size == sizeof(struct batadv_unicast_4addr_packet))
 		err = batadv_send_skb_unicast_4addr(bat_priv, skb_new,
 						    BATADV_P_DAT_CACHE_REPLY,
-						    BATADV_NO_FLAGS);
+						    vid);
 	else
-		err = batadv_send_skb_unicast(bat_priv, skb_new,
-					      BATADV_NO_FLAGS);
+		err = batadv_send_skb_unicast(bat_priv, skb_new, vid);
 
 	if (!err) {
 		batadv_inc_counter(bat_priv, BATADV_CNT_DAT_CACHED_REPLY_TX);
@@ -1020,23 +1066,28 @@ void batadv_dat_snoop_outgoing_arp_reply(struct batadv_priv *bat_priv,
 	uint16_t type;
 	__be32 ip_src, ip_dst;
 	uint8_t *hw_src, *hw_dst;
+	int hdr_size = 0;
+	unsigned short vid;
 
 	if (!atomic_read(&bat_priv->distributed_arp_table))
 		return;
 
-	type = batadv_arp_get_type(bat_priv, skb, 0);
+	vid = batadv_dat_get_vid(skb, &hdr_size);
+
+	type = batadv_arp_get_type(bat_priv, skb, hdr_size);
 	if (type != ARPOP_REPLY)
 		return;
 
-	batadv_dbg_arp(bat_priv, skb, type, 0, "Parsing outgoing ARP REPLY");
+	batadv_dbg_arp(bat_priv, skb, type, hdr_size,
+		       "Parsing outgoing ARP REPLY");
 
-	hw_src = batadv_arp_hw_src(skb, 0);
-	ip_src = batadv_arp_ip_src(skb, 0);
-	hw_dst = batadv_arp_hw_dst(skb, 0);
-	ip_dst = batadv_arp_ip_dst(skb, 0);
+	hw_src = batadv_arp_hw_src(skb, hdr_size);
+	ip_src = batadv_arp_ip_src(skb, hdr_size);
+	hw_dst = batadv_arp_hw_dst(skb, hdr_size);
+	ip_dst = batadv_arp_ip_dst(skb, hdr_size);
 
-	batadv_dat_entry_add(bat_priv, ip_src, hw_src);
-	batadv_dat_entry_add(bat_priv, ip_dst, hw_dst);
+	batadv_dat_entry_add(bat_priv, ip_src, hw_src, vid);
+	batadv_dat_entry_add(bat_priv, ip_dst, hw_dst, vid);
 
 	/* Send the ARP reply to the candidates for both the IP addresses that
 	 * the node obtained from the ARP reply
@@ -1058,10 +1109,13 @@ bool batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv,
 	__be32 ip_src, ip_dst;
 	uint8_t *hw_src, *hw_dst;
 	bool ret = false;
+	unsigned short vid;
 
 	if (!atomic_read(&bat_priv->distributed_arp_table))
 		goto out;
 
+	vid = batadv_dat_get_vid(skb, &hdr_size);
+
 	type = batadv_arp_get_type(bat_priv, skb, hdr_size);
 	if (type != ARPOP_REPLY)
 		goto out;
@@ -1077,13 +1131,13 @@ bool batadv_dat_snoop_incoming_arp_reply(struct batadv_priv *bat_priv,
 	/* Update our internal cache with both the IP addresses the node got
 	 * within the ARP reply
 	 */
-	batadv_dat_entry_add(bat_priv, ip_src, hw_src);
-	batadv_dat_entry_add(bat_priv, ip_dst, hw_dst);
+	batadv_dat_entry_add(bat_priv, ip_src, hw_src, vid);
+	batadv_dat_entry_add(bat_priv, ip_dst, hw_dst, vid);
 
 	/* if this REPLY is directed to a client of mine, let's deliver the
 	 * packet to the interface
 	 */
-	ret = !batadv_is_my_client(bat_priv, hw_dst, BATADV_NO_FLAGS);
+	ret = !batadv_is_my_client(bat_priv, hw_dst, vid);
 out:
 	if (ret)
 		kfree_skb(skb);
@@ -1106,7 +1160,8 @@ bool batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv,
 	__be32 ip_dst;
 	struct batadv_dat_entry *dat_entry = NULL;
 	bool ret = false;
-	const size_t bcast_len = sizeof(struct batadv_bcast_packet);
+	int hdr_size = sizeof(struct batadv_bcast_packet);
+	unsigned short vid;
 
 	if (!atomic_read(&bat_priv->distributed_arp_table))
 		goto out;
@@ -1117,12 +1172,14 @@ bool batadv_dat_drop_broadcast_packet(struct batadv_priv *bat_priv,
 	if (forw_packet->num_packets)
 		goto out;
 
-	type = batadv_arp_get_type(bat_priv, forw_packet->skb, bcast_len);
+	vid = batadv_dat_get_vid(forw_packet->skb, &hdr_size);
+
+	type = batadv_arp_get_type(bat_priv, forw_packet->skb, hdr_size);
 	if (type != ARPOP_REQUEST)
 		goto out;
 
-	ip_dst = batadv_arp_ip_dst(forw_packet->skb, bcast_len);
-	dat_entry = batadv_dat_entry_hash_find(bat_priv, ip_dst);
+	ip_dst = batadv_arp_ip_dst(forw_packet->skb, hdr_size);
+	dat_entry = batadv_dat_entry_hash_find(bat_priv, ip_dst, vid);
 	/* check if the node already got this entry */
 	if (!dat_entry) {
 		batadv_dbg(BATADV_DBG_DAT, bat_priv,
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 99029c5fadf4..6954a5d5a9e9 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -933,6 +933,7 @@ struct batadv_algo_ops {
  * is used to stored ARP entries needed for the global DAT cache
  * @ip: the IPv4 corresponding to this DAT/ARP entry
  * @mac_addr: the MAC address associated to the stored IPv4
+ * @vid: the vlan ID associated to this entry
  * @last_update: time in jiffies when this entry was refreshed last time
  * @hash_entry: hlist node for batadv_priv_dat::hash
  * @refcount: number of contexts the object is used
@@ -941,6 +942,7 @@ struct batadv_algo_ops {
 struct batadv_dat_entry {
 	__be32 ip;
 	uint8_t mac_addr[ETH_ALEN];
+	unsigned short vid;
 	unsigned long last_update;
 	struct hlist_node hash_entry;
 	atomic_t refcount;
-- 
cgit 


From 5d2c05b213377694a2aa8ce1ed9b23f7c39b0569 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 2 Jul 2013 11:04:34 +0200
Subject: batman-adv: add per VLAN interface attribute framework

Since batman-adv is now fully VLAN-aware, a proper framework
able to handle per-vlan-interface attributes is needed.

Those attributes will affect the associated VLAN interface
only, rather than the real soft_iface (which would result
in every vlan interface having the same attribute
configuration).

To make the code simpler and easier to extend, attributes
associated to the standalone soft_iface are now treated
like belonging to yet another vlan having a special vid.
This vid is different from the others because it is made up
by all zeros and the VLAN_HAS_TAG bit is not set.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/hard-interface.c |   2 +
 net/batman-adv/main.c           |   5 +-
 net/batman-adv/soft-interface.c | 171 ++++++++++++++++++++++++++++++++++++++++
 net/batman-adv/soft-interface.h |   1 +
 net/batman-adv/types.h          |  21 +++++
 5 files changed, 197 insertions(+), 3 deletions(-)

diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index d564af295db4..c5f871f218c6 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -643,6 +643,8 @@ static int batadv_hard_if_event(struct notifier_block *this,
 
 	if (batadv_softif_is_valid(net_dev) && event == NETDEV_REGISTER) {
 		batadv_sysfs_add_meshif(net_dev);
+		bat_priv = netdev_priv(net_dev);
+		batadv_softif_create_vlan(bat_priv, BATADV_NO_FLAGS);
 		return NOTIFY_DONE;
 	}
 
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index 80f60d1144f0..22075511c448 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -113,6 +113,7 @@ int batadv_mesh_init(struct net_device *soft_iface)
 	spin_lock_init(&bat_priv->gw.list_lock);
 	spin_lock_init(&bat_priv->tvlv.container_list_lock);
 	spin_lock_init(&bat_priv->tvlv.handler_list_lock);
+	spin_lock_init(&bat_priv->softif_vlan_list_lock);
 
 	INIT_HLIST_HEAD(&bat_priv->forw_bat_list);
 	INIT_HLIST_HEAD(&bat_priv->forw_bcast_list);
@@ -122,6 +123,7 @@ int batadv_mesh_init(struct net_device *soft_iface)
 	INIT_LIST_HEAD(&bat_priv->tt.roam_list);
 	INIT_HLIST_HEAD(&bat_priv->tvlv.container_list);
 	INIT_HLIST_HEAD(&bat_priv->tvlv.handler_list);
+	INIT_HLIST_HEAD(&bat_priv->softif_vlan_list);
 
 	ret = batadv_originator_init(bat_priv);
 	if (ret < 0)
@@ -131,9 +133,6 @@ int batadv_mesh_init(struct net_device *soft_iface)
 	if (ret < 0)
 		goto err;
 
-	batadv_tt_local_add(soft_iface, soft_iface->dev_addr,
-			    BATADV_NO_FLAGS, BATADV_NULL_IFINDEX);
-
 	ret = batadv_bla_init(bat_priv);
 	if (ret < 0)
 		goto err;
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 279e91d570a7..936b83bb02de 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -393,6 +393,166 @@ out:
 	return;
 }
 
+/**
+ * batadv_softif_vlan_free_ref - decrease the vlan object refcounter and
+ *  possibly free it
+ * @softif_vlan: the vlan object to release
+ */
+static void batadv_softif_vlan_free_ref(struct batadv_softif_vlan *softif_vlan)
+{
+	if (atomic_dec_and_test(&softif_vlan->refcount))
+		kfree_rcu(softif_vlan, rcu);
+}
+
+/**
+ * batadv_softif_vlan_get - get the vlan object for a specific vid
+ * @bat_priv: the bat priv with all the soft interface information
+ * @vid: the identifier of the vlan object to retrieve
+ *
+ * Returns the private data of the vlan matching the vid passed as argument or
+ * NULL otherwise. The refcounter of the returned object is incremented by 1.
+ */
+static struct batadv_softif_vlan *
+batadv_softif_vlan_get(struct batadv_priv *bat_priv, unsigned short vid)
+{
+	struct batadv_softif_vlan *vlan_tmp, *vlan = NULL;
+
+	rcu_read_lock();
+	hlist_for_each_entry_rcu(vlan_tmp, &bat_priv->softif_vlan_list, list) {
+		if (vlan_tmp->vid != vid)
+			continue;
+
+		if (!atomic_inc_not_zero(&vlan_tmp->refcount))
+			continue;
+
+		vlan = vlan_tmp;
+		break;
+	}
+	rcu_read_unlock();
+
+	return vlan;
+}
+
+/**
+ * batadv_create_vlan - allocate the needed resources for a new vlan
+ * @bat_priv: the bat priv with all the soft interface information
+ * @vid: the VLAN identifier
+ *
+ * Returns 0 on success, a negative error otherwise.
+ */
+int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid)
+{
+	struct batadv_softif_vlan *vlan;
+
+	vlan = batadv_softif_vlan_get(bat_priv, vid);
+	if (vlan) {
+		batadv_softif_vlan_free_ref(vlan);
+		return -EEXIST;
+	}
+
+	vlan = kzalloc(sizeof(*vlan), GFP_ATOMIC);
+	if (!vlan)
+		return -ENOMEM;
+
+	vlan->vid = vid;
+	atomic_set(&vlan->refcount, 1);
+
+	/* add a new TT local entry. This one will be marked with the NOPURGE
+	 * flag
+	 */
+	batadv_tt_local_add(bat_priv->soft_iface,
+			    bat_priv->soft_iface->dev_addr, vid,
+			    BATADV_NULL_IFINDEX);
+
+	spin_lock_bh(&bat_priv->softif_vlan_list_lock);
+	hlist_add_head_rcu(&vlan->list, &bat_priv->softif_vlan_list);
+	spin_unlock_bh(&bat_priv->softif_vlan_list_lock);
+
+	return 0;
+}
+
+/**
+ * batadv_softif_destroy_vlan - remove and destroy a softif_vlan object
+ * @bat_priv: the bat priv with all the soft interface information
+ * @vlan: the object to remove
+ */
+static void batadv_softif_destroy_vlan(struct batadv_priv *bat_priv,
+				       struct batadv_softif_vlan *vlan)
+{
+	spin_lock_bh(&bat_priv->softif_vlan_list_lock);
+	hlist_del_rcu(&vlan->list);
+	spin_unlock_bh(&bat_priv->softif_vlan_list_lock);
+
+	/* explicitly remove the associated TT local entry because it is marked
+	 * with the NOPURGE flag
+	 */
+	batadv_tt_local_remove(bat_priv, bat_priv->soft_iface->dev_addr,
+			       vlan->vid, "vlan interface destroyed", false);
+
+	batadv_softif_vlan_free_ref(vlan);
+}
+
+/**
+ * batadv_interface_add_vid - ndo_add_vid API implementation
+ * @dev: the netdev of the mesh interface
+ * @vid: identifier of the new vlan
+ *
+ * Set up all the internal structures for handling the new vlan on top of the
+ * mesh interface
+ *
+ * Returns 0 on success or a negative error code in case of failure.
+ */
+static int batadv_interface_add_vid(struct net_device *dev, __be16 proto,
+				    unsigned short vid)
+{
+	struct batadv_priv *bat_priv = netdev_priv(dev);
+
+	/* only 802.1Q vlans are supported.
+	 * batman-adv does not know how to handle other types
+	 */
+	if (proto != htons(ETH_P_8021Q))
+		return -EINVAL;
+
+	vid |= BATADV_VLAN_HAS_TAG;
+
+	return batadv_softif_create_vlan(bat_priv, vid);
+}
+
+/**
+ * batadv_interface_kill_vid - ndo_kill_vid API implementation
+ * @dev: the netdev of the mesh interface
+ * @vid: identifier of the deleted vlan
+ *
+ * Destroy all the internal structures used to handle the vlan identified by vid
+ * on top of the mesh interface
+ *
+ * Returns 0 on success, -EINVAL if the specified prototype is not ETH_P_8021Q
+ * or -ENOENT if the specified vlan id wasn't registered.
+ */
+static int batadv_interface_kill_vid(struct net_device *dev, __be16 proto,
+				     unsigned short vid)
+{
+	struct batadv_priv *bat_priv = netdev_priv(dev);
+	struct batadv_softif_vlan *vlan;
+
+	/* only 802.1Q vlans are supported. batman-adv does not know how to
+	 * handle other types
+	 */
+	if (proto != htons(ETH_P_8021Q))
+		return -EINVAL;
+
+	vlan = batadv_softif_vlan_get(bat_priv, vid | BATADV_VLAN_HAS_TAG);
+	if (!vlan)
+		return -ENOENT;
+
+	batadv_softif_destroy_vlan(bat_priv, vlan);
+
+	/* finally free the vlan object */
+	batadv_softif_vlan_free_ref(vlan);
+
+	return 0;
+}
+
 /* batman-adv network devices have devices nesting below it and are a special
  * "super class" of normal network devices; split their locks off into a
  * separate class since they always nest.
@@ -432,6 +592,7 @@ static void batadv_set_lockdep_class(struct net_device *dev)
  */
 static void batadv_softif_destroy_finish(struct work_struct *work)
 {
+	struct batadv_softif_vlan *vlan;
 	struct batadv_priv *bat_priv;
 	struct net_device *soft_iface;
 
@@ -439,6 +600,13 @@ static void batadv_softif_destroy_finish(struct work_struct *work)
 				cleanup_work);
 	soft_iface = bat_priv->soft_iface;
 
+	/* destroy the "untagged" VLAN */
+	vlan = batadv_softif_vlan_get(bat_priv, BATADV_NO_FLAGS);
+	if (vlan) {
+		batadv_softif_destroy_vlan(bat_priv, vlan);
+		batadv_softif_vlan_free_ref(vlan);
+	}
+
 	batadv_sysfs_del_meshif(soft_iface);
 
 	rtnl_lock();
@@ -594,6 +762,8 @@ static const struct net_device_ops batadv_netdev_ops = {
 	.ndo_open = batadv_interface_open,
 	.ndo_stop = batadv_interface_release,
 	.ndo_get_stats = batadv_interface_stats,
+	.ndo_vlan_rx_add_vid = batadv_interface_add_vid,
+	.ndo_vlan_rx_kill_vid = batadv_interface_kill_vid,
 	.ndo_set_mac_address = batadv_interface_set_mac_addr,
 	.ndo_change_mtu = batadv_interface_change_mtu,
 	.ndo_set_rx_mode = batadv_interface_set_rx_mode,
@@ -633,6 +803,7 @@ static void batadv_softif_init_early(struct net_device *dev)
 
 	dev->netdev_ops = &batadv_netdev_ops;
 	dev->destructor = batadv_softif_free;
+	dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
 	dev->tx_queue_len = 0;
 
 	/* can't call min_mtu, because the needed variables
diff --git a/net/batman-adv/soft-interface.h b/net/batman-adv/soft-interface.h
index 2f2472c2ea0d..16d9be6df647 100644
--- a/net/batman-adv/soft-interface.h
+++ b/net/batman-adv/soft-interface.h
@@ -28,5 +28,6 @@ struct net_device *batadv_softif_create(const char *name);
 void batadv_softif_destroy_sysfs(struct net_device *soft_iface);
 int batadv_softif_is_valid(const struct net_device *net_dev);
 extern struct rtnl_link_ops batadv_link_ops;
+int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid);
 
 #endif /* _NET_BATMAN_ADV_SOFT_INTERFACE_H_ */
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 6954a5d5a9e9..e5fecd4add64 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -530,6 +530,22 @@ struct batadv_priv_nc {
 	struct batadv_hashtable *decoding_hash;
 };
 
+/**
+ * struct batadv_softif_vlan - per VLAN attributes set
+ * @vid: VLAN identifier
+ * @kobj: kobject for sysfs vlan subdirectory
+ * @list: list node for bat_priv::softif_vlan_list
+ * @refcount: number of context where this object is currently in use
+ * @rcu: struct used for freeing in a RCU-safe manner
+ */
+struct batadv_softif_vlan {
+	unsigned short vid;
+	struct kobject *kobj;
+	struct hlist_node list;
+	atomic_t refcount;
+	struct rcu_head rcu;
+};
+
 /**
  * struct batadv_priv - per mesh interface data
  * @mesh_state: current status of the mesh (inactive/active/deactivating)
@@ -566,6 +582,9 @@ struct batadv_priv_nc {
  * @primary_if: one of the hard interfaces assigned to this mesh interface
  *  becomes the primary interface
  * @bat_algo_ops: routing algorithm used by this mesh interface
+ * @softif_vlan_list: a list of softif_vlan structs, one per VLAN created on top
+ *  of the mesh interface represented by this object
+ * @softif_vlan_list_lock: lock protecting softif_vlan_list
  * @bla: bridge loope avoidance data
  * @debug_log: holding debug logging relevant data
  * @gw: gateway data
@@ -613,6 +632,8 @@ struct batadv_priv {
 	struct work_struct cleanup_work;
 	struct batadv_hard_iface __rcu *primary_if;  /* rcu protected pointer */
 	struct batadv_algo_ops *bat_algo_ops;
+	struct hlist_head softif_vlan_list;
+	spinlock_t softif_vlan_list_lock; /* protects softif_vlan_list */
 #ifdef CONFIG_BATMAN_ADV_BLA
 	struct batadv_priv_bla bla;
 #endif
-- 
cgit 


From 90f4435da43191025712fdcf6b0dc09c018456e9 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 2 Jul 2013 11:04:35 +0200
Subject: batman-adv: add sysfs framework for VLAN

Each VLAN can now have its own set of attributes which are
exported through a new subfolder in the sysfs tree.
Each VLAN created on top of a soft_iface will have its own
subfolder.

The subfolder is named "vlan%VID" and it is created inside
the "mesh" sysfs folder belonging to batman-adv.

Attributes corresponding to the untagged LAN are stored in
the root sysfs folder as before.

This patch also creates all the needed macros and data
structures to easily handle new VLAN spacific attributes.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/soft-interface.c |  15 +++-
 net/batman-adv/soft-interface.h |   3 +
 net/batman-adv/sysfs.c          | 173 ++++++++++++++++++++++++++++++++++++++++
 net/batman-adv/sysfs.h          |  10 +++
 4 files changed, 198 insertions(+), 3 deletions(-)

diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 936b83bb02de..f74200c7e553 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -398,7 +398,7 @@ out:
  *  possibly free it
  * @softif_vlan: the vlan object to release
  */
-static void batadv_softif_vlan_free_ref(struct batadv_softif_vlan *softif_vlan)
+void batadv_softif_vlan_free_ref(struct batadv_softif_vlan *softif_vlan)
 {
 	if (atomic_dec_and_test(&softif_vlan->refcount))
 		kfree_rcu(softif_vlan, rcu);
@@ -412,8 +412,8 @@ static void batadv_softif_vlan_free_ref(struct batadv_softif_vlan *softif_vlan)
  * Returns the private data of the vlan matching the vid passed as argument or
  * NULL otherwise. The refcounter of the returned object is incremented by 1.
  */
-static struct batadv_softif_vlan *
-batadv_softif_vlan_get(struct batadv_priv *bat_priv, unsigned short vid)
+struct batadv_softif_vlan *batadv_softif_vlan_get(struct batadv_priv *bat_priv,
+						  unsigned short vid)
 {
 	struct batadv_softif_vlan *vlan_tmp, *vlan = NULL;
 
@@ -443,6 +443,7 @@ batadv_softif_vlan_get(struct batadv_priv *bat_priv, unsigned short vid)
 int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid)
 {
 	struct batadv_softif_vlan *vlan;
+	int err;
 
 	vlan = batadv_softif_vlan_get(bat_priv, vid);
 	if (vlan) {
@@ -457,6 +458,12 @@ int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid)
 	vlan->vid = vid;
 	atomic_set(&vlan->refcount, 1);
 
+	err = batadv_sysfs_add_vlan(bat_priv->soft_iface, vlan);
+	if (err) {
+		kfree(vlan);
+		return err;
+	}
+
 	/* add a new TT local entry. This one will be marked with the NOPURGE
 	 * flag
 	 */
@@ -483,6 +490,8 @@ static void batadv_softif_destroy_vlan(struct batadv_priv *bat_priv,
 	hlist_del_rcu(&vlan->list);
 	spin_unlock_bh(&bat_priv->softif_vlan_list_lock);
 
+	batadv_sysfs_del_vlan(bat_priv, vlan);
+
 	/* explicitly remove the associated TT local entry because it is marked
 	 * with the NOPURGE flag
 	 */
diff --git a/net/batman-adv/soft-interface.h b/net/batman-adv/soft-interface.h
index 16d9be6df647..06fc91ff5a02 100644
--- a/net/batman-adv/soft-interface.h
+++ b/net/batman-adv/soft-interface.h
@@ -29,5 +29,8 @@ void batadv_softif_destroy_sysfs(struct net_device *soft_iface);
 int batadv_softif_is_valid(const struct net_device *net_dev);
 extern struct rtnl_link_ops batadv_link_ops;
 int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid);
+void batadv_softif_vlan_free_ref(struct batadv_softif_vlan *softif_vlan);
+struct batadv_softif_vlan *batadv_softif_vlan_get(struct batadv_priv *bat_priv,
+						  unsigned short vid);
 
 #endif /* _NET_BATMAN_ADV_SOFT_INTERFACE_H_ */
diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c
index 869eb46329cb..f419d218890d 100644
--- a/net/batman-adv/sysfs.c
+++ b/net/batman-adv/sysfs.c
@@ -24,6 +24,7 @@
 #include "network-coding.h"
 #include "originator.h"
 #include "hard-interface.h"
+#include "soft-interface.h"
 #include "gateway_common.h"
 #include "gateway_client.h"
 
@@ -39,6 +40,53 @@ static struct batadv_priv *batadv_kobj_to_batpriv(struct kobject *obj)
 	return netdev_priv(net_dev);
 }
 
+/**
+ * batadv_vlan_kobj_to_batpriv - convert a vlan kobj in the associated batpriv
+ * @obj: kobject to covert
+ *
+ * Returns the associated batadv_priv struct.
+ */
+static struct batadv_priv *batadv_vlan_kobj_to_batpriv(struct kobject *obj)
+{
+	/* VLAN specific attributes are located in the root sysfs folder if they
+	 * refer to the untagged VLAN..
+	 */
+	if (!strcmp(BATADV_SYSFS_IF_MESH_SUBDIR, obj->name))
+		return batadv_kobj_to_batpriv(obj);
+
+	/* ..while the attributes for the tagged vlans are located in
+	 * the in the corresponding "vlan%VID" subfolder
+	 */
+	return batadv_kobj_to_batpriv(obj->parent);
+}
+
+/**
+ * batadv_kobj_to_vlan - convert a kobj in the associated softif_vlan struct
+ * @obj: kobject to covert
+ *
+ * Returns the associated softif_vlan struct if found, NULL otherwise.
+ */
+static struct batadv_softif_vlan *
+batadv_kobj_to_vlan(struct batadv_priv *bat_priv, struct kobject *obj)
+{
+	struct batadv_softif_vlan *vlan_tmp, *vlan = NULL;
+
+	rcu_read_lock();
+	hlist_for_each_entry_rcu(vlan_tmp, &bat_priv->softif_vlan_list, list) {
+		if (vlan_tmp->kobj != obj)
+			continue;
+
+		if (!atomic_inc_not_zero(&vlan_tmp->refcount))
+			continue;
+
+		vlan = vlan_tmp;
+		break;
+	}
+	rcu_read_unlock();
+
+	return vlan;
+}
+
 #define BATADV_UEV_TYPE_VAR	"BATTYPE="
 #define BATADV_UEV_ACTION_VAR	"BATACTION="
 #define BATADV_UEV_DATA_VAR	"BATDATA="
@@ -53,6 +101,15 @@ static char *batadv_uev_type_str[] = {
 	"gw"
 };
 
+/* Use this, if you have customized show and store functions for vlan attrs */
+#define BATADV_ATTR_VLAN(_name, _mode, _show, _store)	\
+struct batadv_attribute batadv_attr_vlan_##_name = {	\
+	.attr = {.name = __stringify(_name),		\
+		 .mode = _mode },			\
+	.show   = _show,				\
+	.store  = _store,				\
+};
+
 /* Use this, if you have customized show and store functions */
 #define BATADV_ATTR(_name, _mode, _show, _store)	\
 struct batadv_attribute batadv_attr_##_name = {		\
@@ -122,6 +179,41 @@ ssize_t batadv_show_##_name(struct kobject *kobj,			\
 	static BATADV_ATTR(_name, _mode, batadv_show_##_name,		\
 			   batadv_store_##_name)
 
+#define BATADV_ATTR_VLAN_STORE_BOOL(_name, _post_func)			\
+ssize_t batadv_store_vlan_##_name(struct kobject *kobj,			\
+				  struct attribute *attr, char *buff,	\
+				  size_t count)				\
+{									\
+	struct batadv_priv *bat_priv = batadv_vlan_kobj_to_batpriv(kobj);\
+	struct batadv_softif_vlan *vlan = batadv_kobj_to_vlan(bat_priv,	\
+							      kobj);	\
+	size_t res = __batadv_store_bool_attr(buff, count, _post_func,	\
+					      attr, &vlan->_name,	\
+					      bat_priv->soft_iface);	\
+	batadv_softif_vlan_free_ref(vlan);				\
+	return res;							\
+}
+
+#define BATADV_ATTR_VLAN_SHOW_BOOL(_name)				\
+ssize_t batadv_show_vlan_##_name(struct kobject *kobj,			\
+				 struct attribute *attr, char *buff)	\
+{									\
+	struct batadv_priv *bat_priv = batadv_vlan_kobj_to_batpriv(kobj);\
+	struct batadv_softif_vlan *vlan = batadv_kobj_to_vlan(bat_priv,	\
+							      kobj);	\
+	size_t res = sprintf(buff, "%s\n",				\
+			     atomic_read(&vlan->_name) == 0 ?		\
+			     "disabled" : "enabled");			\
+	batadv_softif_vlan_free_ref(vlan);				\
+	return res;							\
+}
+
+/* Use this, if you are going to turn a [name] in the vlan struct on or off */
+#define BATADV_ATTR_VLAN_BOOL(_name, _mode, _post_func)			\
+	static BATADV_ATTR_VLAN_STORE_BOOL(_name, _post_func)		\
+	static BATADV_ATTR_VLAN_SHOW_BOOL(_name)			\
+	static BATADV_ATTR_VLAN(_name, _mode, batadv_show_vlan_##_name,	\
+				batadv_store_vlan_##_name)
 
 static int batadv_store_bool_attr(char *buff, size_t count,
 				  struct net_device *net_dev,
@@ -407,6 +499,13 @@ static struct batadv_attribute *batadv_mesh_attrs[] = {
 	NULL,
 };
 
+/**
+ * batadv_vlan_attrs - array of vlan specific sysfs attributes
+ */
+static struct batadv_attribute *batadv_vlan_attrs[] = {
+	NULL,
+};
+
 int batadv_sysfs_add_meshif(struct net_device *dev)
 {
 	struct kobject *batif_kobject = &dev->dev.kobj;
@@ -457,6 +556,80 @@ void batadv_sysfs_del_meshif(struct net_device *dev)
 	bat_priv->mesh_obj = NULL;
 }
 
+/**
+ * batadv_sysfs_add_vlan - add all the needed sysfs objects for the new vlan
+ * @dev: netdev of the mesh interface
+ * @vlan: private data of the newly added VLAN interface
+ *
+ * Returns 0 on success and -ENOMEM if any of the structure allocations fails.
+ */
+int batadv_sysfs_add_vlan(struct net_device *dev,
+			  struct batadv_softif_vlan *vlan)
+{
+	char vlan_subdir[sizeof(BATADV_SYSFS_VLAN_SUBDIR_PREFIX) + 5];
+	struct batadv_priv *bat_priv = netdev_priv(dev);
+	struct batadv_attribute **bat_attr;
+	int err;
+
+	if (vlan->vid & BATADV_VLAN_HAS_TAG) {
+		sprintf(vlan_subdir, BATADV_SYSFS_VLAN_SUBDIR_PREFIX "%hu",
+			vlan->vid & VLAN_VID_MASK);
+
+		vlan->kobj = kobject_create_and_add(vlan_subdir,
+						    bat_priv->mesh_obj);
+		if (!vlan->kobj) {
+			batadv_err(dev, "Can't add sysfs directory: %s/%s\n",
+				   dev->name, vlan_subdir);
+			goto out;
+		}
+	} else {
+		/* the untagged LAN uses the root folder to store its "VLAN
+		 * specific attributes"
+		 */
+		vlan->kobj = bat_priv->mesh_obj;
+		kobject_get(bat_priv->mesh_obj);
+	}
+
+	for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr) {
+		err = sysfs_create_file(vlan->kobj,
+					&((*bat_attr)->attr));
+		if (err) {
+			batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n",
+				   dev->name, vlan_subdir,
+				   ((*bat_attr)->attr).name);
+			goto rem_attr;
+		}
+	}
+
+	return 0;
+
+rem_attr:
+	for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr)
+		sysfs_remove_file(vlan->kobj, &((*bat_attr)->attr));
+
+	kobject_put(vlan->kobj);
+	vlan->kobj = NULL;
+out:
+	return -ENOMEM;
+}
+
+/**
+ * batadv_sysfs_del_vlan - remove all the sysfs objects for a given VLAN
+ * @bat_priv: the bat priv with all the soft interface information
+ * @vlan: the private data of the VLAN to destroy
+ */
+void batadv_sysfs_del_vlan(struct batadv_priv *bat_priv,
+			   struct batadv_softif_vlan *vlan)
+{
+	struct batadv_attribute **bat_attr;
+
+	for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr)
+		sysfs_remove_file(vlan->kobj, &((*bat_attr)->attr));
+
+	kobject_put(vlan->kobj);
+	vlan->kobj = NULL;
+}
+
 static ssize_t batadv_show_mesh_iface(struct kobject *kobj,
 				      struct attribute *attr, char *buff)
 {
diff --git a/net/batman-adv/sysfs.h b/net/batman-adv/sysfs.h
index 479acf4c16f4..c7d725de50ad 100644
--- a/net/batman-adv/sysfs.h
+++ b/net/batman-adv/sysfs.h
@@ -22,6 +22,12 @@
 
 #define BATADV_SYSFS_IF_MESH_SUBDIR "mesh"
 #define BATADV_SYSFS_IF_BAT_SUBDIR "batman_adv"
+/**
+ * BATADV_SYSFS_VLAN_SUBDIR_PREFIX - prefix of the subfolder that will be
+ *  created in the sysfs hierarchy for each VLAN interface. The subfolder will
+ *  be named "BATADV_SYSFS_VLAN_SUBDIR_PREFIX%vid".
+ */
+#define BATADV_SYSFS_VLAN_SUBDIR_PREFIX "vlan"
 
 struct batadv_attribute {
 	struct attribute attr;
@@ -36,6 +42,10 @@ void batadv_sysfs_del_meshif(struct net_device *dev);
 int batadv_sysfs_add_hardif(struct kobject **hardif_obj,
 			    struct net_device *dev);
 void batadv_sysfs_del_hardif(struct kobject **hardif_obj);
+int batadv_sysfs_add_vlan(struct net_device *dev,
+			  struct batadv_softif_vlan *vlan);
+void batadv_sysfs_del_vlan(struct batadv_priv *bat_priv,
+			   struct batadv_softif_vlan *vlan);
 int batadv_throw_uevent(struct batadv_priv *bat_priv, enum batadv_uev_type type,
 			enum batadv_uev_action action, const char *data);
 
-- 
cgit 


From b8cbd81d0944cd2dc097b2b4ae8adaf639c5b4df Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 2 Jul 2013 11:04:36 +0200
Subject: batman-adv: make the AP isolation attribute VLAN specific

AP isolation has to be enabled on one VLAN interface only.
This patch moves the AP isolation attribute to the per-vlan
interface attribute set, enabling it to have a different
value depending on the selected vlan.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 Documentation/ABI/testing/sysfs-class-net-mesh |  5 +++--
 net/batman-adv/soft-interface.c                |  6 ++++--
 net/batman-adv/sysfs.c                         |  5 +++--
 net/batman-adv/translation-table.c             | 27 +++++++++++++++++++-------
 net/batman-adv/translation-table.h             |  2 +-
 net/batman-adv/types.h                         |  4 ++--
 6 files changed, 33 insertions(+), 16 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-class-net-mesh b/Documentation/ABI/testing/sysfs-class-net-mesh
index dfdea2bc2286..0baa657b18c4 100644
--- a/Documentation/ABI/testing/sysfs-class-net-mesh
+++ b/Documentation/ABI/testing/sysfs-class-net-mesh
@@ -6,13 +6,14 @@ Description:
                 Indicates whether the batman protocol messages of the
                 mesh <mesh_iface> shall be aggregated or not.
 
-What:           /sys/class/net/<mesh_iface>/mesh/ap_isolation
+What:           /sys/class/net/<mesh_iface>/mesh/<vlan_subdir>/ap_isolation
 Date:           May 2011
 Contact:        Antonio Quartulli <antonio@meshcoding.com>
 Description:
                 Indicates whether the data traffic going from a
                 wireless client to another wireless client will be
-                silently dropped.
+                silently dropped. <vlan_subdir> is empty when referring
+		to the untagged lan.
 
 What:           /sys/class/net/<mesh_iface>/mesh/bonding
 Date:           June 2010
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index f74200c7e553..baa74b976c6d 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -381,7 +381,8 @@ void batadv_interface_rx(struct net_device *soft_iface,
 		batadv_tt_add_temporary_global_entry(bat_priv, orig_node,
 						     ethhdr->h_source, vid);
 
-	if (batadv_is_ap_isolated(bat_priv, ethhdr->h_source, ethhdr->h_dest))
+	if (batadv_is_ap_isolated(bat_priv, ethhdr->h_source, ethhdr->h_dest,
+				  vid))
 		goto dropped;
 
 	netif_rx(skb);
@@ -458,6 +459,8 @@ int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid)
 	vlan->vid = vid;
 	atomic_set(&vlan->refcount, 1);
 
+	atomic_set(&vlan->ap_isolation, 0);
+
 	err = batadv_sysfs_add_vlan(bat_priv->soft_iface, vlan);
 	if (err) {
 		kfree(vlan);
@@ -657,7 +660,6 @@ static int batadv_softif_init_late(struct net_device *dev)
 #ifdef CONFIG_BATMAN_ADV_DAT
 	atomic_set(&bat_priv->distributed_arp_table, 1);
 #endif
-	atomic_set(&bat_priv->ap_isolation, 0);
 	atomic_set(&bat_priv->gw_mode, BATADV_GW_MODE_OFF);
 	atomic_set(&bat_priv->gw_sel_class, 20);
 	atomic_set(&bat_priv->gw.bandwidth_down, 100);
diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c
index f419d218890d..6335433310af 100644
--- a/net/batman-adv/sysfs.c
+++ b/net/batman-adv/sysfs.c
@@ -453,7 +453,6 @@ BATADV_ATTR_SIF_BOOL(distributed_arp_table, S_IRUGO | S_IWUSR,
 		     batadv_dat_status_update);
 #endif
 BATADV_ATTR_SIF_BOOL(fragmentation, S_IRUGO | S_IWUSR, batadv_update_min_mtu);
-BATADV_ATTR_SIF_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL);
 static BATADV_ATTR(routing_algo, S_IRUGO, batadv_show_bat_algo, NULL);
 static BATADV_ATTR(gw_mode, S_IRUGO | S_IWUSR, batadv_show_gw_mode,
 		   batadv_store_gw_mode);
@@ -483,7 +482,6 @@ static struct batadv_attribute *batadv_mesh_attrs[] = {
 	&batadv_attr_distributed_arp_table,
 #endif
 	&batadv_attr_fragmentation,
-	&batadv_attr_ap_isolation,
 	&batadv_attr_routing_algo,
 	&batadv_attr_gw_mode,
 	&batadv_attr_orig_interval,
@@ -499,10 +497,13 @@ static struct batadv_attribute *batadv_mesh_attrs[] = {
 	NULL,
 };
 
+BATADV_ATTR_VLAN_BOOL(ap_isolation, S_IRUGO | S_IWUSR, NULL);
+
 /**
  * batadv_vlan_attrs - array of vlan specific sysfs attributes
  */
 static struct batadv_attribute *batadv_vlan_attrs[] = {
+	&batadv_attr_vlan_ap_isolation,
 	NULL,
 };
 
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 9bf928c0b188..58794c4cea91 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -1482,8 +1482,19 @@ struct batadv_orig_node *batadv_transtable_search(struct batadv_priv *bat_priv,
 	struct batadv_tt_global_entry *tt_global_entry = NULL;
 	struct batadv_orig_node *orig_node = NULL;
 	struct batadv_tt_orig_list_entry *best_entry;
+	bool ap_isolation_enabled = false;
+	struct batadv_softif_vlan *vlan;
 
-	if (src && atomic_read(&bat_priv->ap_isolation)) {
+	/* if the AP isolation is requested on a VLAN, then check for its
+	 * setting in the proper VLAN private data structure
+	 */
+	vlan = batadv_softif_vlan_get(bat_priv, vid);
+	if (vlan) {
+		ap_isolation_enabled = atomic_read(&vlan->ap_isolation);
+		batadv_softif_vlan_free_ref(vlan);
+	}
+
+	if (src && ap_isolation_enabled) {
 		tt_local_entry = batadv_tt_local_hash_find(bat_priv, src, vid);
 		if (!tt_local_entry ||
 		    (tt_local_entry->common.flags & BATADV_TT_CLIENT_PENDING))
@@ -2547,22 +2558,22 @@ void batadv_tt_local_commit_changes(struct batadv_priv *bat_priv)
 }
 
 bool batadv_is_ap_isolated(struct batadv_priv *bat_priv, uint8_t *src,
-			   uint8_t *dst)
+			   uint8_t *dst, unsigned short vid)
 {
 	struct batadv_tt_local_entry *tt_local_entry = NULL;
 	struct batadv_tt_global_entry *tt_global_entry = NULL;
+	struct batadv_softif_vlan *vlan;
 	bool ret = false;
 
-	if (!atomic_read(&bat_priv->ap_isolation))
+	vlan = batadv_softif_vlan_get(bat_priv, vid);
+	if (!vlan || !atomic_read(&vlan->ap_isolation))
 		goto out;
 
-	tt_local_entry = batadv_tt_local_hash_find(bat_priv, dst,
-						   BATADV_NO_FLAGS);
+	tt_local_entry = batadv_tt_local_hash_find(bat_priv, dst, vid);
 	if (!tt_local_entry)
 		goto out;
 
-	tt_global_entry = batadv_tt_global_hash_find(bat_priv, src,
-						     BATADV_NO_FLAGS);
+	tt_global_entry = batadv_tt_global_hash_find(bat_priv, src, vid);
 	if (!tt_global_entry)
 		goto out;
 
@@ -2572,6 +2583,8 @@ bool batadv_is_ap_isolated(struct batadv_priv *bat_priv, uint8_t *src,
 	ret = true;
 
 out:
+	if (vlan)
+		batadv_softif_vlan_free_ref(vlan);
 	if (tt_global_entry)
 		batadv_tt_global_entry_free_ref(tt_global_entry);
 	if (tt_local_entry)
diff --git a/net/batman-adv/translation-table.h b/net/batman-adv/translation-table.h
index 1d9506d85bee..c6bf33c04855 100644
--- a/net/batman-adv/translation-table.h
+++ b/net/batman-adv/translation-table.h
@@ -39,7 +39,7 @@ void batadv_tt_free(struct batadv_priv *bat_priv);
 bool batadv_is_my_client(struct batadv_priv *bat_priv, const uint8_t *addr,
 			 unsigned short vid);
 bool batadv_is_ap_isolated(struct batadv_priv *bat_priv, uint8_t *src,
-			   uint8_t *dst);
+			   uint8_t *dst, unsigned short vid);
 void batadv_tt_local_commit_changes(struct batadv_priv *bat_priv);
 bool batadv_tt_global_client_is_roaming(struct batadv_priv *bat_priv,
 					uint8_t *addr, unsigned short vid);
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index e5fecd4add64..04a0da6011b7 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -534,6 +534,7 @@ struct batadv_priv_nc {
  * struct batadv_softif_vlan - per VLAN attributes set
  * @vid: VLAN identifier
  * @kobj: kobject for sysfs vlan subdirectory
+ * @ap_isolation: AP isolation state
  * @list: list node for bat_priv::softif_vlan_list
  * @refcount: number of context where this object is currently in use
  * @rcu: struct used for freeing in a RCU-safe manner
@@ -541,6 +542,7 @@ struct batadv_priv_nc {
 struct batadv_softif_vlan {
 	unsigned short vid;
 	struct kobject *kobj;
+	atomic_t ap_isolation;		/* boolean */
 	struct hlist_node list;
 	atomic_t refcount;
 	struct rcu_head rcu;
@@ -556,7 +558,6 @@ struct batadv_softif_vlan {
  * @bonding: bool indicating whether traffic bonding is enabled
  * @fragmentation: bool indicating whether traffic fragmentation is enabled
  * @frag_seqno: incremental counter to identify chains of egress fragments
- * @ap_isolation: bool indicating whether ap isolation is enabled
  * @bridge_loop_avoidance: bool indicating whether bridge loop avoidance is
  *  enabled
  * @distributed_arp_table: bool indicating whether distributed ARP table is
@@ -603,7 +604,6 @@ struct batadv_priv {
 	atomic_t bonding;
 	atomic_t fragmentation;
 	atomic_t frag_seqno;
-	atomic_t ap_isolation;
 #ifdef CONFIG_BATMAN_ADV_BLA
 	atomic_t bridge_loop_avoidance;
 #endif
-- 
cgit 


From e300d314664ef6746e697d5b581f85114ab1f843 Mon Sep 17 00:00:00 2001
From: Linus Lüssing <linus.luessing@web.de>
Date: Wed, 3 Jul 2013 10:40:00 +0200
Subject: batman-adv: refine API calls for unicast transmissions of SKBs
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

With this patch the functions batadv_send_skb_unicast() and
batadv_send_skb_unicast_4addr() are further refined into
batadv_send_skb_via_tt(), batadv_send_skb_via_tt_4addr() and
batadv_send_skb_via_gw(). This way we avoid any "guessing" about where to send
a packet in the unicast forwarding methods and let the callers decide.

This is going to be useful for the upcoming multicast related patches in
particular.

Further, the return values were polished a little to use the more
appropriate NET_XMIT_* defines.

Signed-off-by: Linus Lüssing <linus.luessing@web.de>
Acked-by: Antonio Quartulli <antonio@meshcoding.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/distributed-arp-table.c | 10 ++--
 net/batman-adv/send.c                  | 87 ++++++++++++++++++++++++++--------
 net/batman-adv/send.h                  | 51 ++++++++++++--------
 net/batman-adv/soft-interface.c        |  8 +++-
 4 files changed, 108 insertions(+), 48 deletions(-)

diff --git a/net/batman-adv/distributed-arp-table.c b/net/batman-adv/distributed-arp-table.c
index 47dbe9a53e91..6c8c3934bd7b 100644
--- a/net/batman-adv/distributed-arp-table.c
+++ b/net/batman-adv/distributed-arp-table.c
@@ -1037,13 +1037,13 @@ bool batadv_dat_snoop_incoming_arp_request(struct batadv_priv *bat_priv,
 	 * that a node not using the 4addr packet format doesn't support it.
 	 */
 	if (hdr_size == sizeof(struct batadv_unicast_4addr_packet))
-		err = batadv_send_skb_unicast_4addr(bat_priv, skb_new,
-						    BATADV_P_DAT_CACHE_REPLY,
-						    vid);
+		err = batadv_send_skb_via_tt_4addr(bat_priv, skb_new,
+						   BATADV_P_DAT_CACHE_REPLY,
+						   vid);
 	else
-		err = batadv_send_skb_unicast(bat_priv, skb_new, vid);
+		err = batadv_send_skb_via_tt(bat_priv, skb_new, vid);
 
-	if (!err) {
+	if (err != NET_XMIT_DROP) {
 		batadv_inc_counter(bat_priv, BATADV_CNT_DAT_CACHED_REPLY_TX);
 		ret = true;
 	}
diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
index acaa7ffff245..c83be5ebaa28 100644
--- a/net/batman-adv/send.c
+++ b/net/batman-adv/send.c
@@ -234,35 +234,31 @@ out:
 }
 
 /**
- * batadv_send_generic_unicast_skb - send an skb as unicast
+ * batadv_send_skb_unicast - encapsulate and send an skb via unicast
  * @bat_priv: the bat priv with all the soft interface information
  * @skb: payload to send
  * @packet_type: the batman unicast packet type to use
  * @packet_subtype: the unicast 4addr packet subtype (only relevant for unicast
  *  4addr packets)
+ * @orig_node: the originator to send the packet to
  * @vid: the vid to be used to search the translation table
  *
- * Returns 1 in case of error or 0 otherwise.
+ * Wrap the given skb into a batman-adv unicast or unicast-4addr header
+ * depending on whether BATADV_UNICAST or BATADV_UNICAST_4ADDR was supplied
+ * as packet_type. Then send this frame to the given orig_node and release a
+ * reference to this orig_node.
+ *
+ * Returns NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise.
  */
-int batadv_send_skb_generic_unicast(struct batadv_priv *bat_priv,
-				    struct sk_buff *skb, int packet_type,
-				    int packet_subtype,
-				    unsigned short vid)
+static int batadv_send_skb_unicast(struct batadv_priv *bat_priv,
+				   struct sk_buff *skb, int packet_type,
+				   int packet_subtype,
+				   struct batadv_orig_node *orig_node,
+				   unsigned short vid)
 {
 	struct ethhdr *ethhdr = (struct ethhdr *)skb->data;
 	struct batadv_unicast_packet *unicast_packet;
-	struct batadv_orig_node *orig_node;
-	int ret = NET_RX_DROP;
-
-	/* get routing information */
-	if (is_multicast_ether_addr(ethhdr->h_dest))
-		orig_node = batadv_gw_get_selected_orig(bat_priv);
-	else
-		/* check for tt host - increases orig_node refcount.
-		 * returns NULL in case of AP isolation
-		 */
-		orig_node = batadv_transtable_search(bat_priv, ethhdr->h_source,
-						     ethhdr->h_dest, vid);
+	int ret = NET_XMIT_DROP;
 
 	if (!orig_node)
 		goto out;
@@ -296,16 +292,67 @@ int batadv_send_skb_generic_unicast(struct batadv_priv *bat_priv,
 		unicast_packet->ttvn = unicast_packet->ttvn - 1;
 
 	if (batadv_send_skb_to_orig(skb, orig_node, NULL) != NET_XMIT_DROP)
-		ret = 0;
+		ret = NET_XMIT_SUCCESS;
 
 out:
 	if (orig_node)
 		batadv_orig_node_free_ref(orig_node);
-	if (ret == NET_RX_DROP)
+	if (ret == NET_XMIT_DROP)
 		kfree_skb(skb);
 	return ret;
 }
 
+/**
+ * batadv_send_skb_via_tt_generic - send an skb via TT lookup
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: payload to send
+ * @packet_type: the batman unicast packet type to use
+ * @packet_subtype: the unicast 4addr packet subtype (only relevant for unicast
+ *  4addr packets)
+ * @vid: the vid to be used to search the translation table
+ *
+ * Look up the recipient node for the destination address in the ethernet
+ * header via the translation table. Wrap the given skb into a batman-adv
+ * unicast or unicast-4addr header depending on whether BATADV_UNICAST or
+ * BATADV_UNICAST_4ADDR was supplied as packet_type. Then send this frame
+ * to the according destination node.
+ *
+ * Returns NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise.
+ */
+int batadv_send_skb_via_tt_generic(struct batadv_priv *bat_priv,
+				   struct sk_buff *skb, int packet_type,
+				   int packet_subtype, unsigned short vid)
+{
+	struct ethhdr *ethhdr = (struct ethhdr *)skb->data;
+	struct batadv_orig_node *orig_node;
+
+	orig_node = batadv_transtable_search(bat_priv, ethhdr->h_source,
+					     ethhdr->h_dest, vid);
+	return batadv_send_skb_unicast(bat_priv, skb, packet_type,
+				       packet_subtype, orig_node, vid);
+}
+
+/**
+ * batadv_send_skb_via_gw - send an skb via gateway lookup
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: payload to send
+ * @vid: the vid to be used to search the translation table
+ *
+ * Look up the currently selected gateway. Wrap the given skb into a batman-adv
+ * unicast header and send this frame to this gateway node.
+ *
+ * Returns NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise.
+ */
+int batadv_send_skb_via_gw(struct batadv_priv *bat_priv, struct sk_buff *skb,
+			   unsigned short vid)
+{
+	struct batadv_orig_node *orig_node;
+
+	orig_node = batadv_gw_get_selected_orig(bat_priv);
+	return batadv_send_skb_unicast(bat_priv, skb, BATADV_UNICAST, 0,
+				       orig_node, vid);
+}
+
 void batadv_schedule_bat_ogm(struct batadv_hard_iface *hard_iface)
 {
 	struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
diff --git a/net/batman-adv/send.h b/net/batman-adv/send.h
index c030cb72ff45..aa2e2537a739 100644
--- a/net/batman-adv/send.h
+++ b/net/batman-adv/send.h
@@ -38,45 +38,54 @@ bool batadv_send_skb_prepare_unicast_4addr(struct batadv_priv *bat_priv,
 					   struct sk_buff *skb,
 					   struct batadv_orig_node *orig_node,
 					   int packet_subtype);
-int batadv_send_skb_generic_unicast(struct batadv_priv *bat_priv,
-				    struct sk_buff *skb, int packet_type,
-				    int packet_subtype,
-				    unsigned short vid);
+int batadv_send_skb_via_tt_generic(struct batadv_priv *bat_priv,
+				   struct sk_buff *skb, int packet_type,
+				   int packet_subtype, unsigned short vid);
+int batadv_send_skb_via_gw(struct batadv_priv *bat_priv, struct sk_buff *skb,
+			   unsigned short vid);
 
 /**
- * batadv_send_unicast_skb - send the skb encapsulated in a unicast packet
+ * batadv_send_skb_via_tt - send an skb via TT lookup
  * @bat_priv: the bat priv with all the soft interface information
  * @skb: the payload to send
  * @vid: the vid to be used to search the translation table
  *
- * Returns 1 in case of error or 0 otherwise.
+ * Look up the recipient node for the destination address in the ethernet
+ * header via the translation table. Wrap the given skb into a batman-adv
+ * unicast header. Then send this frame to the according destination node.
+ *
+ * Returns NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise.
  */
-static inline int batadv_send_skb_unicast(struct batadv_priv *bat_priv,
-					  struct sk_buff *skb,
-					  unsigned short vid)
+static inline int batadv_send_skb_via_tt(struct batadv_priv *bat_priv,
+					 struct sk_buff *skb,
+					 unsigned short vid)
 {
-	return batadv_send_skb_generic_unicast(bat_priv, skb, BATADV_UNICAST,
-					       0, vid);
+	return batadv_send_skb_via_tt_generic(bat_priv, skb, BATADV_UNICAST, 0,
+					      vid);
 }
 
 /**
- * batadv_send_4addr_unicast_skb - send the skb encapsulated in a unicast 4addr
- *  packet
+ * batadv_send_skb_via_tt_4addr - send an skb via TT lookup
  * @bat_priv: the bat priv with all the soft interface information
  * @skb: the payload to send
  * @packet_subtype: the unicast 4addr packet subtype to use
  * @vid: the vid to be used to search the translation table
  *
- * Returns 1 in case of error or 0 otherwise.
+ * Look up the recipient node for the destination address in the ethernet
+ * header via the translation table. Wrap the given skb into a batman-adv
+ * unicast-4addr header. Then send this frame to the according destination
+ * node.
+ *
+ * Returns NET_XMIT_DROP in case of error or NET_XMIT_SUCCESS otherwise.
  */
-static inline int batadv_send_skb_unicast_4addr(struct batadv_priv *bat_priv,
-						struct sk_buff *skb,
-						int packet_subtype,
-						unsigned short vid)
+static inline int batadv_send_skb_via_tt_4addr(struct batadv_priv *bat_priv,
+					       struct sk_buff *skb,
+					       int packet_subtype,
+					       unsigned short vid)
 {
-	return batadv_send_skb_generic_unicast(bat_priv, skb,
-					       BATADV_UNICAST_4ADDR,
-					       packet_subtype, vid);
+	return batadv_send_skb_via_tt_generic(bat_priv, skb,
+					      BATADV_UNICAST_4ADDR,
+					      packet_subtype, vid);
 }
 
 #endif /* _NET_BATMAN_ADV_SEND_H_ */
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index baa74b976c6d..e70f530d8568 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -298,8 +298,12 @@ static int batadv_interface_tx(struct sk_buff *skb,
 
 		batadv_dat_snoop_outgoing_arp_reply(bat_priv, skb);
 
-		ret = batadv_send_skb_unicast(bat_priv, skb, vid);
-		if (ret != 0)
+		if (is_multicast_ether_addr(ethhdr->h_dest))
+			ret = batadv_send_skb_via_gw(bat_priv, skb, vid);
+		else
+			ret = batadv_send_skb_via_tt(bat_priv, skb, vid);
+
+		if (ret == NET_XMIT_DROP)
 			goto dropped_freed;
 	}
 
-- 
cgit 


From e75de4fa41d810113cf81f658a56e3972c7c12b4 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Wed, 10 Jul 2013 16:52:04 +0200
Subject: batman-adv: remove bogus comment

this comment refers to the old batmand codebase and does
not make sense anymore. Remove it

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/gateway_client.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index 4ed410f73de4..20fa053b7f57 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -221,11 +221,6 @@ void batadv_gw_election(struct batadv_priv *bat_priv)
 	struct batadv_neigh_node *router = NULL;
 	char gw_addr[18] = { '\0' };
 
-	/* The batman daemon checks here if we already passed a full originator
-	 * cycle in order to make sure we don't choose the first gateway we
-	 * hear about. This check is based on the daemon's uptime which we
-	 * don't have.
-	 */
 	if (atomic_read(&bat_priv->gw_mode) != BATADV_GW_MODE_CLIENT)
 		goto out;
 
-- 
cgit 


From a70a9aa990bdf24039cb4167993bcc5a0f9cbb18 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 30 Jul 2013 22:16:24 +0200
Subject: batman-adv: lock around TT operations to avoid sending inconsistent
 data

A TT response may be prepared and sent while the local or
global translation table is getting updated.

The worst case is when one of the tables is accessed after
its content has been recently updated but the metadata
(TTVN/CRC) has not yet. In this case the reader will get a
table content which does not match the TTVN/CRC.
This will lead to an inconsistent state and so to a TT
recovery.

To avoid entering this situation, put a lock around those TT
operations recomputing the metadata and around the TT
Response creation (the latter is the only reader that
accesses the metadata together with the table).

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/main.c              |  1 +
 net/batman-adv/originator.c        |  1 +
 net/batman-adv/translation-table.c | 23 +++++++++++++++++++----
 net/batman-adv/types.h             | 13 +++++++++++++
 4 files changed, 34 insertions(+), 4 deletions(-)

diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index 22075511c448..3159a148c1ac 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -110,6 +110,7 @@ int batadv_mesh_init(struct net_device *soft_iface)
 	spin_lock_init(&bat_priv->tt.req_list_lock);
 	spin_lock_init(&bat_priv->tt.roam_list_lock);
 	spin_lock_init(&bat_priv->tt.last_changeset_lock);
+	spin_lock_init(&bat_priv->tt.commit_lock);
 	spin_lock_init(&bat_priv->gw.list_lock);
 	spin_lock_init(&bat_priv->tvlv.container_list_lock);
 	spin_lock_init(&bat_priv->tvlv.handler_list_lock);
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index a591dc5c321e..867778e8184d 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -239,6 +239,7 @@ struct batadv_orig_node *batadv_get_orig_node(struct batadv_priv *bat_priv,
 	spin_lock_init(&orig_node->bcast_seqno_lock);
 	spin_lock_init(&orig_node->neigh_list_lock);
 	spin_lock_init(&orig_node->tt_buff_lock);
+	spin_lock_init(&orig_node->tt_lock);
 
 	batadv_nc_init_orig(orig_node);
 
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 58794c4cea91..00f4faa69c07 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -2019,6 +2019,7 @@ static bool batadv_send_my_tt_response(struct batadv_priv *bat_priv,
 		   req_src, tt_data->ttvn,
 		   (tt_data->flags & BATADV_TT_FULL_TABLE ? 'F' : '.'));
 
+	spin_lock_bh(&bat_priv->tt.commit_lock);
 
 	my_ttvn = (uint8_t)atomic_read(&bat_priv->tt.vn);
 	req_ttvn = tt_data->ttvn;
@@ -2091,6 +2092,7 @@ static bool batadv_send_my_tt_response(struct batadv_priv *bat_priv,
 unlock:
 	spin_unlock_bh(&bat_priv->tt.last_changeset_lock);
 out:
+	spin_unlock_bh(&bat_priv->tt.commit_lock);
 	if (orig_node)
 		batadv_orig_node_free_ref(orig_node);
 	if (primary_if)
@@ -2259,6 +2261,8 @@ static void batadv_handle_tt_response(struct batadv_priv *bat_priv,
 	if (!orig_node)
 		goto out;
 
+	spin_lock_bh(&orig_node->tt_lock);
+
 	if (tt_data->flags & BATADV_TT_FULL_TABLE) {
 		batadv_tt_fill_gtable(bat_priv, tt_data, resp_src, num_entries);
 	} else {
@@ -2267,6 +2271,11 @@ static void batadv_handle_tt_response(struct batadv_priv *bat_priv,
 					 tt_data->ttvn, tt_change);
 	}
 
+	/* Recalculate the CRC for this orig_node and store it */
+	orig_node->tt_crc = batadv_tt_global_crc(bat_priv, orig_node);
+
+	spin_unlock_bh(&orig_node->tt_lock);
+
 	/* Delete the tt_req_node from pending tt_requests list */
 	spin_lock_bh(&bat_priv->tt.req_list_lock);
 	list_for_each_entry_safe(node, safe, &bat_priv->tt.req_list, list) {
@@ -2276,9 +2285,6 @@ static void batadv_handle_tt_response(struct batadv_priv *bat_priv,
 		kfree(node);
 	}
 	spin_unlock_bh(&bat_priv->tt.req_list_lock);
-
-	/* Recalculate the CRC for this orig_node and store it */
-	orig_node->tt_crc = batadv_tt_global_crc(bat_priv, orig_node);
 out:
 	if (orig_node)
 		batadv_orig_node_free_ref(orig_node);
@@ -2532,10 +2538,12 @@ void batadv_tt_local_commit_changes(struct batadv_priv *bat_priv)
 {
 	uint16_t changed_num = 0;
 
+	spin_lock_bh(&bat_priv->tt.commit_lock);
+
 	if (atomic_read(&bat_priv->tt.local_changes) < 1) {
 		if (!batadv_atomic_dec_not_zero(&bat_priv->tt.ogm_append_cnt))
 			batadv_tt_tvlv_container_update(bat_priv);
-		return;
+		goto out;
 	}
 
 	changed_num = batadv_tt_set_flags(bat_priv->tt.local_hash,
@@ -2555,6 +2563,9 @@ void batadv_tt_local_commit_changes(struct batadv_priv *bat_priv)
 	/* reset the sending counter */
 	atomic_set(&bat_priv->tt.ogm_append_cnt, BATADV_TT_OGM_APPEND_MAX);
 	batadv_tt_tvlv_container_update(bat_priv);
+
+out:
+	spin_unlock_bh(&bat_priv->tt.commit_lock);
 }
 
 bool batadv_is_ap_isolated(struct batadv_priv *bat_priv, uint8_t *src,
@@ -2631,6 +2642,8 @@ static void batadv_tt_update_orig(struct batadv_priv *bat_priv,
 			goto request_table;
 		}
 
+		spin_lock_bh(&orig_node->tt_lock);
+
 		tt_change = (struct batadv_tvlv_tt_change *)tt_buff;
 		batadv_tt_update_changes(bat_priv, orig_node, tt_num_changes,
 					 ttvn, tt_change);
@@ -2641,6 +2654,8 @@ static void batadv_tt_update_orig(struct batadv_priv *bat_priv,
 		 */
 		orig_node->tt_crc = batadv_tt_global_crc(bat_priv, orig_node);
 
+		spin_unlock_bh(&orig_node->tt_lock);
+
 		/* The ttvn alone is not enough to guarantee consistency
 		 * because a single value could represent different states
 		 * (due to the wrap around). Thus a node has to check whether
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 04a0da6011b7..bd95d612260c 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -128,6 +128,10 @@ struct batadv_frag_list_entry {
  * @tt_size: number of global TT entries announced by the orig node
  * @tt_initialised: bool keeping track of whether or not this node have received
  *  any translation table information from the orig node yet
+ * @tt_lock: prevents from updating the table while reading it. Table update is
+ *  made up by two operations (data structure update and metdata -CRC/TTVN-
+ *  recalculation) and they have to be executed atomically in order to avoid
+ *  another thread to read the table/metadata between those.
  * @last_real_seqno: last and best known sequence number
  * @last_ttl: ttl of last received packet
  * @bcast_bits: bitfield containing the info which payload broadcast originated
@@ -171,6 +175,8 @@ struct batadv_orig_node {
 	spinlock_t tt_buff_lock; /* protects tt_buff & tt_buff_len */
 	atomic_t tt_size;
 	bool tt_initialised;
+	/* prevents from changing the table while reading it */
+	spinlock_t tt_lock;
 	uint32_t last_real_seqno;
 	uint8_t last_ttl;
 	DECLARE_BITMAP(bcast_bits, BATADV_TQ_LOCAL_WINDOW_SIZE);
@@ -388,6 +394,11 @@ enum batadv_counters {
  * @last_changeset: last tt changeset this host has generated
  * @last_changeset_len: length of last tt changeset this host has generated
  * @last_changeset_lock: lock protecting last_changeset & last_changeset_len
+ * @commit_lock: prevents from executing a local TT commit while reading the
+ *  local table. The local TT commit is made up by two operations (data
+ *  structure update and metdata -CRC/TTVN- recalculation) and they have to be
+ *  executed atomically in order to avoid another thread to read the
+ *  table/metadata between those.
  * @work: work queue callback item for translation table purging
  */
 struct batadv_priv_tt {
@@ -408,6 +419,8 @@ struct batadv_priv_tt {
 	int16_t last_changeset_len;
 	/* protects last_changeset & last_changeset_len */
 	spinlock_t last_changeset_lock;
+	/* prevents from executing a commit while reading the table */
+	spinlock_t commit_lock;
 	struct delayed_work work;
 };
 
-- 
cgit 


From 06f5b7785af6beebb7b2a452687b5a102c90ca6e Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 19 Oct 2013 07:09:11 -0700
Subject: Bluetooth: Add support for setting SSP debug mode

Enabling and disabling SSP debug mode is useful for development. This
adds a debugfs entry that allows to configure the SSP debug mode.

On purpose this has been implemented as debugfs entry and not a public
API since it is really only useful during testing and development.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci.h      |  2 ++
 include/net/bluetooth/hci_core.h |  1 +
 net/bluetooth/hci_core.c         | 54 +++++++++++++++++++++++++++++++++++++++-
 net/bluetooth/hci_event.c        |  2 ++
 4 files changed, 58 insertions(+), 1 deletion(-)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 77a971aefcff..ac9c4a75e314 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -1043,6 +1043,8 @@ struct hci_rp_write_remote_amp_assoc {
 	__u8     phy_handle;
 } __packed;
 
+#define HCI_OP_WRITE_SSP_DEBUG_MODE	0x1804
+
 #define HCI_OP_LE_SET_EVENT_MASK	0x2001
 struct hci_cp_le_set_event_mask {
 	__u8     mask[8];
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index c689bcf4a0f7..d50cc7aca4e4 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -169,6 +169,7 @@ struct hci_dev {
 	__u8		page_scan_type;
 	__u16		le_scan_interval;
 	__u16		le_scan_window;
+	__u8		ssp_debug_mode;
 
 	__u16		devid_source;
 	__u16		devid_vendor;
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 384b9db16f69..2a9e92503fd6 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -303,6 +303,55 @@ static int auto_accept_delay_get(void *data, u64 *val)
 DEFINE_SIMPLE_ATTRIBUTE(auto_accept_delay_fops, auto_accept_delay_get,
 			auto_accept_delay_set, "%llu\n");
 
+static int ssp_debug_mode_set(void *data, u64 val)
+{
+	struct hci_dev *hdev = data;
+	struct sk_buff *skb;
+	__u8 mode;
+	int err;
+
+	if (val != 0 && val != 1)
+		return -EINVAL;
+
+	if (!test_bit(HCI_UP, &hdev->flags))
+		return -ENETDOWN;
+
+	hci_req_lock(hdev);
+	mode = val;
+	skb = __hci_cmd_sync(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE, sizeof(mode),
+			     &mode, HCI_CMD_TIMEOUT);
+	hci_req_unlock(hdev);
+
+	if (IS_ERR(skb))
+		return PTR_ERR(skb);
+
+	err = -bt_to_errno(skb->data[0]);
+	kfree_skb(skb);
+
+	if (err < 0)
+		return err;
+
+	hci_dev_lock(hdev);
+	hdev->ssp_debug_mode = val;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int ssp_debug_mode_get(void *data, u64 *val)
+{
+	struct hci_dev *hdev = data;
+
+	hci_dev_lock(hdev);
+	*val = hdev->ssp_debug_mode;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(ssp_debug_mode_fops, ssp_debug_mode_get,
+			ssp_debug_mode_set, "%llu\n");
+
 static int idle_timeout_set(void *data, u64 val)
 {
 	struct hci_dev *hdev = data;
@@ -1199,9 +1248,12 @@ static int __hci_init(struct hci_dev *hdev)
 				    hdev, &voice_setting_fops);
 	}
 
-	if (lmp_ssp_capable(hdev))
+	if (lmp_ssp_capable(hdev)) {
 		debugfs_create_file("auto_accept_delay", 0644, hdev->debugfs,
 				    hdev, &auto_accept_delay_fops);
+		debugfs_create_file("ssp_debug_mode", 0644, hdev->debugfs,
+				    hdev, &ssp_debug_mode_fops);
+	}
 
 	if (lmp_sniff_capable(hdev)) {
 		debugfs_create_file("idle_timeout", 0644, hdev->debugfs,
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 1214d4b6f541..5935f748c0f9 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -198,6 +198,8 @@ static void hci_cc_reset(struct hci_dev *hdev, struct sk_buff *skb)
 
 	memset(hdev->scan_rsp_data, 0, sizeof(hdev->scan_rsp_data));
 	hdev->scan_rsp_data_len = 0;
+
+	hdev->ssp_debug_mode = 0;
 }
 
 static void hci_cc_write_local_name(struct hci_dev *hdev, struct sk_buff *skb)
-- 
cgit 


From 4e70c7e71c5f9cf11013628ab5a0ced449b1c7b2 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 19 Oct 2013 07:09:13 -0700
Subject: Bluetooth: Expose debugfs settings for LE connection interval

For testing purposes expose the default LE connection interval values
via debugfs.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci_core.h |  2 ++
 net/bluetooth/hci_conn.c         |  5 ++--
 net/bluetooth/hci_core.c         | 62 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 67 insertions(+), 2 deletions(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index d50cc7aca4e4..8c0ab3d86f95 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -169,6 +169,8 @@ struct hci_dev {
 	__u8		page_scan_type;
 	__u16		le_scan_interval;
 	__u16		le_scan_window;
+	__u16		le_conn_min_interval;
+	__u16		le_conn_max_interval;
 	__u8		ssp_debug_mode;
 
 	__u16		devid_source;
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index 974d7bccbb6f..ba5366c320da 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -558,11 +558,12 @@ static int hci_create_le_conn(struct hci_conn *conn)
 	bacpy(&cp.peer_addr, &conn->dst);
 	cp.peer_addr_type = conn->dst_type;
 	cp.own_address_type = conn->src_type;
-	cp.conn_interval_min = __constant_cpu_to_le16(0x0028);
-	cp.conn_interval_max = __constant_cpu_to_le16(0x0038);
+	cp.conn_interval_min = cpu_to_le16(hdev->le_conn_min_interval);
+	cp.conn_interval_max = cpu_to_le16(hdev->le_conn_max_interval);
 	cp.supervision_timeout = __constant_cpu_to_le16(0x002a);
 	cp.min_ce_len = __constant_cpu_to_le16(0x0000);
 	cp.max_ce_len = __constant_cpu_to_le16(0x0000);
+
 	hci_req_add(&req, HCI_OP_LE_CREATE_CONN, sizeof(cp), &cp);
 
 	err = hci_req_run(&req, create_le_conn_complete);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 2a9e92503fd6..8149e1303e2b 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -517,6 +517,62 @@ static const struct file_operations long_term_keys_fops = {
 	.release	= single_release,
 };
 
+static int conn_min_interval_set(void *data, u64 val)
+{
+	struct hci_dev *hdev = data;
+
+	if (val < 0x0006 || val > 0x0c80 || val > hdev->le_conn_max_interval)
+		return -EINVAL;
+
+	hci_dev_lock(hdev);
+	hdev->le_conn_min_interval= val;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int conn_min_interval_get(void *data, u64 *val)
+{
+	struct hci_dev *hdev = data;
+
+	hci_dev_lock(hdev);
+	*val = hdev->le_conn_min_interval;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(conn_min_interval_fops, conn_min_interval_get,
+			conn_min_interval_set, "%llu\n");
+
+static int conn_max_interval_set(void *data, u64 val)
+{
+	struct hci_dev *hdev = data;
+
+	if (val < 0x0006 || val > 0x0c80 || val < hdev->le_conn_min_interval)
+		return -EINVAL;
+
+	hci_dev_lock(hdev);
+	hdev->le_conn_max_interval= val;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+static int conn_max_interval_get(void *data, u64 *val)
+{
+	struct hci_dev *hdev = data;
+
+	hci_dev_lock(hdev);
+	*val = hdev->le_conn_max_interval;
+	hci_dev_unlock(hdev);
+
+	return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(conn_max_interval_fops, conn_max_interval_get,
+			conn_max_interval_set, "%llu\n");
+
 /* ---- HCI requests ---- */
 
 static void hci_req_sync_complete(struct hci_dev *hdev, u8 result)
@@ -1273,6 +1329,10 @@ static int __hci_init(struct hci_dev *hdev)
 				    hdev, &own_address_type_fops);
 		debugfs_create_file("long_term_keys", 0400, hdev->debugfs,
 				    hdev, &long_term_keys_fops);
+		debugfs_create_file("conn_min_interval", 0644, hdev->debugfs,
+				    hdev, &conn_min_interval_fops);
+		debugfs_create_file("conn_max_interval", 0644, hdev->debugfs,
+				    hdev, &conn_max_interval_fops);
 	}
 
 	return 0;
@@ -2738,6 +2798,8 @@ struct hci_dev *hci_alloc_dev(void)
 
 	hdev->le_scan_interval = 0x0060;
 	hdev->le_scan_window = 0x0030;
+	hdev->le_conn_min_interval = 0x0028;
+	hdev->le_conn_max_interval = 0x0038;
 
 	mutex_init(&hdev->lock);
 	mutex_init(&hdev->req_lock);
-- 
cgit 


From 4b4148e9acc1a51c454f133637e5dc7e298bd5bb Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 19 Oct 2013 07:09:12 -0700
Subject: Bluetooth: Add support for setting DUT mode

The Device Under Test (DUT) mode is useful for doing certification
testing and so expose this as debugfs option.

This mode is actually special since you can only enter it. Restoring
normal operation means that a HCI Reset is required. The current mode
value gets tracked as a new device flag and when disabling it, the
correct command to reset the controller is sent.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 include/net/bluetooth/hci.h |  3 ++
 net/bluetooth/hci_core.c    | 73 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 76 insertions(+)

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index ac9c4a75e314..1784c48699f0 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -115,6 +115,7 @@ enum {
 	HCI_PAIRABLE,
 	HCI_SERVICE_CACHE,
 	HCI_DEBUG_KEYS,
+	HCI_DUT_MODE,
 	HCI_UNREGISTER,
 	HCI_USER_CHANNEL,
 
@@ -1043,6 +1044,8 @@ struct hci_rp_write_remote_amp_assoc {
 	__u8     phy_handle;
 } __packed;
 
+#define HCI_OP_ENABLE_DUT_MODE		0x1803
+
 #define HCI_OP_WRITE_SSP_DEBUG_MODE	0x1804
 
 #define HCI_OP_LE_SET_EVENT_MASK	0x2001
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 8149e1303e2b..b5c8cb3c96d2 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -58,6 +58,71 @@ static void hci_notify(struct hci_dev *hdev, int event)
 
 /* ---- HCI debugfs entries ---- */
 
+static ssize_t dut_mode_read(struct file *file, char __user *user_buf,
+			     size_t count, loff_t *ppos)
+{
+	struct hci_dev *hdev = file->private_data;
+	char buf[3];
+
+	buf[0] = test_bit(HCI_DUT_MODE, &hdev->dev_flags) ? 'Y': 'N';
+	buf[1] = '\n';
+	buf[2] = '\0';
+	return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
+}
+
+static ssize_t dut_mode_write(struct file *file, const char __user *user_buf,
+			      size_t count, loff_t *ppos)
+{
+	struct hci_dev *hdev = file->private_data;
+	struct sk_buff *skb;
+	char buf[32];
+	size_t buf_size = min(count, (sizeof(buf)-1));
+	bool enable;
+	int err;
+
+	if (!test_bit(HCI_UP, &hdev->flags))
+		return -ENETDOWN;
+
+	if (copy_from_user(buf, user_buf, buf_size))
+		return -EFAULT;
+
+	buf[buf_size] = '\0';
+	if (strtobool(buf, &enable))
+		return -EINVAL;
+
+	if (enable == test_bit(HCI_DUT_MODE, &hdev->dev_flags))
+		return -EALREADY;
+
+	hci_req_lock(hdev);
+	if (enable)
+		skb = __hci_cmd_sync(hdev, HCI_OP_ENABLE_DUT_MODE, 0, NULL,
+				     HCI_CMD_TIMEOUT);
+	else
+		skb = __hci_cmd_sync(hdev, HCI_OP_RESET, 0, NULL,
+				     HCI_CMD_TIMEOUT);
+	hci_req_unlock(hdev);
+
+	if (IS_ERR(skb))
+		return PTR_ERR(skb);
+
+	err = -bt_to_errno(skb->data[0]);
+	kfree_skb(skb);
+
+	if (err < 0)
+		return err;
+
+	change_bit(HCI_DUT_MODE, &hdev->dev_flags);
+
+	return count;
+}
+
+static const struct file_operations dut_mode_fops = {
+	.open		= simple_open,
+	.read		= dut_mode_read,
+	.write		= dut_mode_write,
+	.llseek		= default_llseek,
+};
+
 static int features_show(struct seq_file *f, void *ptr)
 {
 	struct hci_dev *hdev = f->private;
@@ -1256,6 +1321,14 @@ static int __hci_init(struct hci_dev *hdev)
 	if (err < 0)
 		return err;
 
+	/* The Device Under Test (DUT) mode is special and available for
+	 * all controller types. So just create it early on.
+	 */
+	if (test_bit(HCI_SETUP, &hdev->dev_flags)) {
+		debugfs_create_file("dut_mode", 0644, hdev->debugfs, hdev,
+				    &dut_mode_fops);
+	}
+
 	/* HCI_BREDR covers both single-mode LE, BR/EDR and dual-mode
 	 * BR/EDR/LE type controllers. AMP controllers only need the
 	 * first stage init.
-- 
cgit 


From 1e687e806b8ea1b1428e3e664afd4081e435f6d0 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Sat, 19 Oct 2013 11:55:15 +0300
Subject: hwmon: (nct6775) Remove an unused variable

We don't actually use "j" for anything.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/nct6775.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index 7a1b6a75ed54..d17325db0ea3 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -939,7 +939,7 @@ nct6775_create_attr_group(struct device *dev, struct sensor_template_group *tg,
 	struct sensor_device_attribute_2 *a2;
 	struct attribute **attrs;
 	struct sensor_device_template **t;
-	int i, j, count;
+	int i, count;
 
 	if (repeat <= 0)
 		return ERR_PTR(-EINVAL);
@@ -970,7 +970,7 @@ nct6775_create_attr_group(struct device *dev, struct sensor_template_group *tg,
 
 	for (i = 0; i < repeat; i++) {
 		t = tg->templates;
-		for (j = 0; *t != NULL; j++) {
+		while (*t != NULL) {
 			snprintf(su->name, sizeof(su->name),
 				 (*t)->dev_attr.attr.name, tg->base + i);
 			if ((*t)->s2) {
-- 
cgit 


From 26336c8a36c0a6a28b9ecf6f1bb8c8f5605d6a21 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Sat, 19 Oct 2013 12:12:22 +0300
Subject: hwmon: (w83793) Clean up a signedness issue

We cap the upper bound of "mtimeout" but since it's signed we should
check for negative values as well.  The mistake is harmless.  But I have
changed it to unsigned as a cleanup.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/w83793.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/hwmon/w83793.c b/drivers/hwmon/w83793.c
index b6470ecda8fc..9d63d71214ca 100644
--- a/drivers/hwmon/w83793.c
+++ b/drivers/hwmon/w83793.c
@@ -1199,7 +1199,8 @@ static void w83793_init_client(struct i2c_client *client)
 
 static int watchdog_set_timeout(struct w83793_data *data, int timeout)
 {
-	int ret, mtimeout;
+	unsigned int mtimeout;
+	int ret;
 
 	mtimeout = DIV_ROUND_UP(timeout, 60);
 
-- 
cgit 


From cd6e9db27728e8bcf98cb667996b121761f58121 Mon Sep 17 00:00:00 2001
From: Tero Kristo <t-kristo@ti.com>
Date: Fri, 11 Oct 2013 19:15:31 +0300
Subject: ARM: OMAP2: CM/PM: remove direct register accesses outside CM code

Users of the CM funtionality should not access the CM registers directly
by themselves. Thus, added new CM driver APIs for the OMAP2 specific
functionalities which support the existing direct register accesses, and
changed the platform code to use these. This is done in preparation
for moving the CM code into its own individual driver.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/clkt2xxx_apll.c          |  4 +-
 arch/arm/mach-omap2/clkt2xxx_dpllcore.c      | 11 ++---
 arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c | 24 +++-------
 arch/arm/mach-omap2/cm2xxx.c                 | 67 ++++++++++++++++++++++++++++
 arch/arm/mach-omap2/cm2xxx.h                 |  8 ++++
 arch/arm/mach-omap2/pm24xx.c                 | 24 +---------
 6 files changed, 89 insertions(+), 49 deletions(-)

diff --git a/arch/arm/mach-omap2/clkt2xxx_apll.c b/arch/arm/mach-omap2/clkt2xxx_apll.c
index 25b1feed480d..c78e893eba7d 100644
--- a/arch/arm/mach-omap2/clkt2xxx_apll.c
+++ b/arch/arm/mach-omap2/clkt2xxx_apll.c
@@ -52,7 +52,7 @@ static bool omap2xxx_clk_apll_locked(struct clk_hw *hw)
 
 	apll_mask = EN_APLL_LOCKED << clk->enable_bit;
 
-	r = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKEN);
+	r = omap2xxx_cm_get_pll_status();
 
 	return ((r & apll_mask) == apll_mask) ? true : false;
 }
@@ -126,7 +126,7 @@ u32 omap2xxx_get_apll_clkin(void)
 {
 	u32 aplls, srate = 0;
 
-	aplls = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKSEL1);
+	aplls = omap2xxx_cm_get_pll_config();
 	aplls &= OMAP24XX_APLLS_CLKIN_MASK;
 	aplls >>= OMAP24XX_APLLS_CLKIN_SHIFT;
 
diff --git a/arch/arm/mach-omap2/clkt2xxx_dpllcore.c b/arch/arm/mach-omap2/clkt2xxx_dpllcore.c
index d8620105c42a..3ff32543493c 100644
--- a/arch/arm/mach-omap2/clkt2xxx_dpllcore.c
+++ b/arch/arm/mach-omap2/clkt2xxx_dpllcore.c
@@ -60,8 +60,7 @@ unsigned long omap2xxx_clk_get_core_rate(void)
 
 	core_clk = omap2_get_dpll_rate(dpll_core_ck);
 
-	v = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
-	v &= OMAP24XX_CORE_CLK_SRC_MASK;
+	v = omap2xxx_cm_get_core_clk_src();
 
 	if (v == CORE_CLK_SRC_32K)
 		core_clk = 32768;
@@ -79,8 +78,7 @@ static long omap2_dpllcore_round_rate(unsigned long target_rate)
 {
 	u32 high, low, core_clk_src;
 
-	core_clk_src = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
-	core_clk_src &= OMAP24XX_CORE_CLK_SRC_MASK;
+	core_clk_src = omap2xxx_cm_get_core_clk_src();
 
 	if (core_clk_src == CORE_CLK_SRC_DPLL) {	/* DPLL clockout */
 		high = curr_prcm_set->dpll_speed * 2;
@@ -120,8 +118,7 @@ int omap2_reprogram_dpllcore(struct clk_hw *hw, unsigned long rate,
 	const struct dpll_data *dd;
 
 	cur_rate = omap2xxx_clk_get_core_rate();
-	mult = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
-	mult &= OMAP24XX_CORE_CLK_SRC_MASK;
+	mult = omap2xxx_cm_get_core_clk_src();
 
 	if ((rate == (cur_rate / 2)) && (mult == 2)) {
 		omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL, 1);
@@ -145,7 +142,7 @@ int omap2_reprogram_dpllcore(struct clk_hw *hw, unsigned long rate,
 		tmpset.cm_clksel1_pll &= ~(dd->mult_mask |
 					   dd->div1_mask);
 		div = ((curr_prcm_set->xtal_speed / 1000000) - 1);
-		tmpset.cm_clksel2_pll = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
+		tmpset.cm_clksel2_pll = omap2xxx_cm_get_core_pll_config();
 		tmpset.cm_clksel2_pll &= ~OMAP24XX_CORE_CLK_SRC_MASK;
 		if (rate > low) {
 			tmpset.cm_clksel2_pll |= CORE_CLK_SRC_DPLL_X2;
diff --git a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
index ae2b35e76dc8..b935ed2922d8 100644
--- a/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
+++ b/arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c
@@ -98,7 +98,7 @@ long omap2_round_to_table_rate(struct clk_hw *hw, unsigned long rate,
 int omap2_select_table_rate(struct clk_hw *hw, unsigned long rate,
 			    unsigned long parent_rate)
 {
-	u32 cur_rate, done_rate, bypass = 0, tmp;
+	u32 cur_rate, done_rate, bypass = 0;
 	const struct prcm_config *prcm;
 	unsigned long found_speed = 0;
 	unsigned long flags;
@@ -141,23 +141,11 @@ int omap2_select_table_rate(struct clk_hw *hw, unsigned long rate,
 		else
 			done_rate = CORE_CLK_SRC_DPLL;
 
-		/* MPU divider */
-		omap2_cm_write_mod_reg(prcm->cm_clksel_mpu, MPU_MOD, CM_CLKSEL);
-
-		/* dsp + iva1 div(2420), iva2.1(2430) */
-		omap2_cm_write_mod_reg(prcm->cm_clksel_dsp,
-				 OMAP24XX_DSP_MOD, CM_CLKSEL);
-
-		omap2_cm_write_mod_reg(prcm->cm_clksel_gfx, GFX_MOD, CM_CLKSEL);
-
-		/* Major subsystem dividers */
-		tmp = omap2_cm_read_mod_reg(CORE_MOD, CM_CLKSEL1) & OMAP24XX_CLKSEL_DSS2_MASK;
-		omap2_cm_write_mod_reg(prcm->cm_clksel1_core | tmp, CORE_MOD,
-				 CM_CLKSEL1);
-
-		if (cpu_is_omap2430())
-			omap2_cm_write_mod_reg(prcm->cm_clksel_mdm,
-					 OMAP2430_MDM_MOD, CM_CLKSEL);
+		omap2xxx_cm_set_mod_dividers(prcm->cm_clksel_mpu,
+					     prcm->cm_clksel_dsp,
+					     prcm->cm_clksel_gfx,
+					     prcm->cm_clksel1_core,
+					     prcm->cm_clksel_mdm);
 
 		/* x2 to enter omap2xxx_sdrc_init_params() */
 		omap2xxx_sdrc_reprogram(CORE_CLK_SRC_DPLL_X2, 1);
diff --git a/arch/arm/mach-omap2/cm2xxx.c b/arch/arm/mach-omap2/cm2xxx.c
index 6774a53a3874..ce25abbcffae 100644
--- a/arch/arm/mach-omap2/cm2xxx.c
+++ b/arch/arm/mach-omap2/cm2xxx.c
@@ -327,6 +327,73 @@ struct clkdm_ops omap2_clkdm_operations = {
 	.clkdm_clk_disable	= omap2xxx_clkdm_clk_disable,
 };
 
+int omap2xxx_cm_fclks_active(void)
+{
+	u32 f1, f2;
+
+	f1 = omap2_cm_read_mod_reg(CORE_MOD, CM_FCLKEN1);
+	f2 = omap2_cm_read_mod_reg(CORE_MOD, OMAP24XX_CM_FCLKEN2);
+
+	return (f1 | f2) ? 1 : 0;
+}
+
+int omap2xxx_cm_mpu_retention_allowed(void)
+{
+	u32 l;
+
+	/* Check for MMC, UART2, UART1, McSPI2, McSPI1 and DSS1. */
+	l = omap2_cm_read_mod_reg(CORE_MOD, CM_FCLKEN1);
+	if (l & (OMAP2420_EN_MMC_MASK | OMAP24XX_EN_UART2_MASK |
+		 OMAP24XX_EN_UART1_MASK | OMAP24XX_EN_MCSPI2_MASK |
+		 OMAP24XX_EN_MCSPI1_MASK | OMAP24XX_EN_DSS1_MASK))
+		return 0;
+	/* Check for UART3. */
+	l = omap2_cm_read_mod_reg(CORE_MOD, OMAP24XX_CM_FCLKEN2);
+	if (l & OMAP24XX_EN_UART3_MASK)
+		return 0;
+
+	return 1;
+}
+
+u32 omap2xxx_cm_get_core_clk_src(void)
+{
+	u32 v;
+
+	v = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
+	v &= OMAP24XX_CORE_CLK_SRC_MASK;
+
+	return v;
+}
+
+u32 omap2xxx_cm_get_core_pll_config(void)
+{
+	return omap2_cm_read_mod_reg(PLL_MOD, CM_CLKSEL2);
+}
+
+u32 omap2xxx_cm_get_pll_config(void)
+{
+	return omap2_cm_read_mod_reg(PLL_MOD, CM_CLKSEL1);
+}
+
+u32 omap2xxx_cm_get_pll_status(void)
+{
+	return omap2_cm_read_mod_reg(PLL_MOD, CM_CLKEN);
+}
+
+void omap2xxx_cm_set_mod_dividers(u32 mpu, u32 dsp, u32 gfx, u32 core, u32 mdm)
+{
+	u32 tmp;
+
+	omap2_cm_write_mod_reg(mpu, MPU_MOD, CM_CLKSEL);
+	omap2_cm_write_mod_reg(dsp, OMAP24XX_DSP_MOD, CM_CLKSEL);
+	omap2_cm_write_mod_reg(gfx, GFX_MOD, CM_CLKSEL);
+	tmp = omap2_cm_read_mod_reg(CORE_MOD, CM_CLKSEL1) &
+		OMAP24XX_CLKSEL_DSS2_MASK;
+	omap2_cm_write_mod_reg(core | tmp, CORE_MOD, CM_CLKSEL1);
+	if (cpu_is_omap2430())
+		omap2_cm_write_mod_reg(mdm, OMAP2430_MDM_MOD, CM_CLKSEL);
+}
+
 /*
  *
  */
diff --git a/arch/arm/mach-omap2/cm2xxx.h b/arch/arm/mach-omap2/cm2xxx.h
index 4cbb39b051d2..891d81c3c8f4 100644
--- a/arch/arm/mach-omap2/cm2xxx.h
+++ b/arch/arm/mach-omap2/cm2xxx.h
@@ -62,6 +62,14 @@ extern int omap2xxx_cm_wait_module_ready(s16 prcm_mod, u8 idlest_id,
 					 u8 idlest_shift);
 extern int omap2xxx_cm_split_idlest_reg(void __iomem *idlest_reg,
 					s16 *prcm_inst, u8 *idlest_reg_id);
+extern int omap2xxx_cm_fclks_active(void);
+extern int omap2xxx_cm_mpu_retention_allowed(void);
+extern u32 omap2xxx_cm_get_core_clk_src(void);
+extern u32 omap2xxx_cm_get_core_pll_config(void);
+extern u32 omap2xxx_cm_get_pll_config(void);
+extern u32 omap2xxx_cm_get_pll_status(void);
+extern void omap2xxx_cm_set_mod_dividers(u32 mpu, u32 dsp, u32 gfx, u32 core,
+					 u32 mdm);
 
 extern int __init omap2xxx_cm_init(void);
 
diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c
index ce956b0a7ba4..8c0759496c8d 100644
--- a/arch/arm/mach-omap2/pm24xx.c
+++ b/arch/arm/mach-omap2/pm24xx.c
@@ -62,16 +62,6 @@ static struct clockdomain *dsp_clkdm, *mpu_clkdm, *wkup_clkdm, *gfx_clkdm;
 
 static struct clk *osc_ck, *emul_ck;
 
-static int omap2_fclks_active(void)
-{
-	u32 f1, f2;
-
-	f1 = omap2_cm_read_mod_reg(CORE_MOD, CM_FCLKEN1);
-	f2 = omap2_cm_read_mod_reg(CORE_MOD, OMAP24XX_CM_FCLKEN2);
-
-	return (f1 | f2) ? 1 : 0;
-}
-
 static int omap2_enter_full_retention(void)
 {
 	u32 l;
@@ -142,17 +132,7 @@ static int sti_console_enabled;
 
 static int omap2_allow_mpu_retention(void)
 {
-	u32 l;
-
-	/* Check for MMC, UART2, UART1, McSPI2, McSPI1 and DSS1. */
-	l = omap2_cm_read_mod_reg(CORE_MOD, CM_FCLKEN1);
-	if (l & (OMAP2420_EN_MMC_MASK | OMAP24XX_EN_UART2_MASK |
-		 OMAP24XX_EN_UART1_MASK | OMAP24XX_EN_MCSPI2_MASK |
-		 OMAP24XX_EN_MCSPI1_MASK | OMAP24XX_EN_DSS1_MASK))
-		return 0;
-	/* Check for UART3. */
-	l = omap2_cm_read_mod_reg(CORE_MOD, OMAP24XX_CM_FCLKEN2);
-	if (l & OMAP24XX_EN_UART3_MASK)
+	if (!omap2xxx_cm_mpu_retention_allowed())
 		return 0;
 	if (sti_console_enabled)
 		return 0;
@@ -188,7 +168,7 @@ static void omap2_enter_mpu_retention(void)
 
 static int omap2_can_sleep(void)
 {
-	if (omap2_fclks_active())
+	if (omap2xxx_cm_fclks_active())
 		return 0;
 	if (__clk_is_enabled(osc_ck))
 		return 0;
-- 
cgit 


From 818b40e500b2afadeabfd7ca369800c350989143 Mon Sep 17 00:00:00 2001
From: Tero Kristo <t-kristo@ti.com>
Date: Fri, 11 Oct 2013 19:15:32 +0300
Subject: ARM: OMAP3: clock: add API to enable/disable autoidle for a single
 clock

Some drivers require direct access to the autoidle functionality of the
interface clocks. Added clock APIs for these, so that the drivers do not
need to access CM registers directly.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/clock.c | 38 ++++++++++++++++++++++++++++++++++++++
 arch/arm/mach-omap2/clock.h |  2 ++
 2 files changed, 40 insertions(+)

diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index 0c38ca96c840..c7c5d31e9082 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -542,6 +542,44 @@ int omap2_clk_disable_autoidle_all(void)
 	return 0;
 }
 
+/**
+ * omap2_clk_deny_idle - disable autoidle on an OMAP clock
+ * @clk: struct clk * to disable autoidle for
+ *
+ * Disable autoidle on an OMAP clock.
+ */
+int omap2_clk_deny_idle(struct clk *clk)
+{
+	struct clk_hw_omap *c;
+
+	if (__clk_get_flags(clk) & CLK_IS_BASIC)
+		return -EINVAL;
+
+	c = to_clk_hw_omap(__clk_get_hw(clk));
+	if (c->ops && c->ops->deny_idle)
+		c->ops->deny_idle(c);
+	return 0;
+}
+
+/**
+ * omap2_clk_allow_idle - enable autoidle on an OMAP clock
+ * @clk: struct clk * to enable autoidle for
+ *
+ * Enable autoidle on an OMAP clock.
+ */
+int omap2_clk_allow_idle(struct clk *clk)
+{
+	struct clk_hw_omap *c;
+
+	if (__clk_get_flags(clk) & CLK_IS_BASIC)
+		return -EINVAL;
+
+	c = to_clk_hw_omap(__clk_get_hw(clk));
+	if (c->ops && c->ops->allow_idle)
+		c->ops->allow_idle(c);
+	return 0;
+}
+
 /**
  * omap2_clk_enable_init_clocks - prepare & enable a list of clocks
  * @clk_names: ptr to an array of strings of clock names to enable
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index 7aa32cd292f9..82916cc82c92 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -411,6 +411,8 @@ void omap2_clk_dflt_find_idlest(struct clk_hw_omap *clk,
 void omap2_init_clk_hw_omap_clocks(struct clk *clk);
 int omap2_clk_enable_autoidle_all(void);
 int omap2_clk_disable_autoidle_all(void);
+int omap2_clk_allow_idle(struct clk *clk);
+int omap2_clk_deny_idle(struct clk *clk);
 void omap2_clk_enable_init_clocks(const char **clk_names, u8 num_clocks);
 int omap2_clk_switch_mpurate_at_boot(const char *mpurate_ck_name);
 void omap2_clk_print_new_rates(const char *hfclkin_ck_name,
-- 
cgit 


From 7a90da2ad3fdd44a6230c0e2c0a374a5cda1711c Mon Sep 17 00:00:00 2001
From: Tero Kristo <t-kristo@ti.com>
Date: Fri, 11 Oct 2013 19:15:33 +0300
Subject: ARM: OMAP3: McBSP: do not access CM register directly

McBSP driver require special hacks to enable/disable the autoidle feature
for its interface clock for the proper function of the sidetone hardware.
Currently the driver just writes CM registers directly, which should be
avoided. Thus, changed the driver to use the new deny/allow_autoidle
clock API calls.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Cc: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/mcbsp.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/arm/mach-omap2/mcbsp.c b/arch/arm/mach-omap2/mcbsp.c
index 5d8768075dd9..b4ac3af1160c 100644
--- a/arch/arm/mach-omap2/mcbsp.c
+++ b/arch/arm/mach-omap2/mcbsp.c
@@ -25,6 +25,7 @@
 
 #include "soc.h"
 #include "omap_device.h"
+#include "clock.h"
 
 /*
  * FIXME: Find a mechanism to enable/disable runtime the McBSP ICLK autoidle.
@@ -33,22 +34,18 @@
 #include "cm3xxx.h"
 #include "cm-regbits-34xx.h"
 
+static struct clk *mcbsp_iclks[5];
+
 static int omap3_enable_st_clock(unsigned int id, bool enable)
 {
-	unsigned int w;
-
 	/*
 	 * Sidetone uses McBSP ICLK - which must not idle when sidetones
 	 * are enabled or sidetones start sounding ugly.
 	 */
-	w = omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_AUTOIDLE);
 	if (enable)
-		w &= ~(1 << (id - 2));
+		return omap2_clk_deny_idle(mcbsp_iclks[id]);
 	else
-		w |= 1 << (id - 2);
-	omap2_cm_write_mod_reg(w, OMAP3430_PER_MOD, CM_AUTOIDLE);
-
-	return 0;
+		return omap2_clk_allow_idle(mcbsp_iclks[id]);
 }
 
 static int __init omap_init_mcbsp(struct omap_hwmod *oh, void *unused)
@@ -58,6 +55,7 @@ static int __init omap_init_mcbsp(struct omap_hwmod *oh, void *unused)
 	struct omap_hwmod *oh_device[2];
 	struct omap_mcbsp_platform_data *pdata = NULL;
 	struct platform_device *pdev;
+	char clk_name[11];
 
 	sscanf(oh->name, "mcbsp%d", &id);
 
@@ -99,6 +97,8 @@ static int __init omap_init_mcbsp(struct omap_hwmod *oh, void *unused)
 		oh_device[1] = omap_hwmod_lookup((
 		(struct omap_mcbsp_dev_attr *)(oh->dev_attr))->sidetone);
 		pdata->enable_st_clock = omap3_enable_st_clock;
+		sprintf(clk_name, "mcbsp%d_ick", id);
+		mcbsp_iclks[id] = clk_get(NULL, clk_name);
 		count++;
 	}
 	pdev = omap_device_build_ss(name, id, oh_device, count, pdata,
-- 
cgit 


From c6a2d839d0dba8a06f55c7b06f8ce33bdbe4aea3 Mon Sep 17 00:00:00 2001
From: Tero Kristo <t-kristo@ti.com>
Date: Fri, 11 Oct 2013 19:15:34 +0300
Subject: ARM: OMAP3: CM/control: move CM scratchpad save to CM driver

OMAP3 PM code for off-mode currently saves the scratchpad contents for CM
registers within OMAP control module driver. However, as we are separating
CM code into its own driver, this must be moved also. This patch adds a
new API for saving the CM scratchpad contents and uses this from the high
level scratchpad save function.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/cm3xxx.c  | 22 ++++++++++++++++++++++
 arch/arm/mach-omap2/cm3xxx.h  |  1 +
 arch/arm/mach-omap2/control.c | 43 ++++---------------------------------------
 3 files changed, 27 insertions(+), 39 deletions(-)

diff --git a/arch/arm/mach-omap2/cm3xxx.c b/arch/arm/mach-omap2/cm3xxx.c
index 9061c307d915..f6f028867bfe 100644
--- a/arch/arm/mach-omap2/cm3xxx.c
+++ b/arch/arm/mach-omap2/cm3xxx.c
@@ -636,6 +636,28 @@ void omap3_cm_restore_context(void)
 			       OMAP3_CM_CLKOUT_CTRL_OFFSET);
 }
 
+void omap3_cm_save_scratchpad_contents(u32 *ptr)
+{
+	*ptr++ = omap2_cm_read_mod_reg(CORE_MOD, CM_CLKSEL);
+	*ptr++ = omap2_cm_read_mod_reg(WKUP_MOD, CM_CLKSEL);
+	*ptr++ = omap2_cm_read_mod_reg(PLL_MOD, CM_CLKEN);
+
+	/*
+	 * As per erratum i671, ROM code does not respect the PER DPLL
+	 * programming scheme if CM_AUTOIDLE_PLL..AUTO_PERIPH_DPLL == 1.
+	 * Then,  in anycase, clear these bits to avoid extra latencies.
+	 */
+	*ptr++ = omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE) &
+		~OMAP3430_AUTO_PERIPH_DPLL_MASK;
+	*ptr++ = omap2_cm_read_mod_reg(PLL_MOD, OMAP3430_CM_CLKSEL1_PLL);
+	*ptr++ = omap2_cm_read_mod_reg(PLL_MOD, OMAP3430_CM_CLKSEL2_PLL);
+	*ptr++ = omap2_cm_read_mod_reg(PLL_MOD, OMAP3430_CM_CLKSEL3);
+	*ptr++ = omap2_cm_read_mod_reg(MPU_MOD, OMAP3430_CM_CLKEN_PLL);
+	*ptr++ = omap2_cm_read_mod_reg(MPU_MOD, OMAP3430_CM_AUTOIDLE_PLL);
+	*ptr++ = omap2_cm_read_mod_reg(MPU_MOD, OMAP3430_CM_CLKSEL1_PLL);
+	*ptr++ = omap2_cm_read_mod_reg(MPU_MOD, OMAP3430_CM_CLKSEL2_PLL);
+}
+
 /*
  *
  */
diff --git a/arch/arm/mach-omap2/cm3xxx.h b/arch/arm/mach-omap2/cm3xxx.h
index e8e146f4a43f..8224c91b4d7a 100644
--- a/arch/arm/mach-omap2/cm3xxx.h
+++ b/arch/arm/mach-omap2/cm3xxx.h
@@ -83,6 +83,7 @@ extern int omap3xxx_cm_split_idlest_reg(void __iomem *idlest_reg,
 
 extern void omap3_cm_save_context(void);
 extern void omap3_cm_restore_context(void);
+extern void omap3_cm_save_scratchpad_contents(u32 *ptr);
 
 extern int __init omap3xxx_cm_init(void);
 
diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index 31e0dfe4a4ea..a59711454543 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -46,17 +46,7 @@ struct omap3_scratchpad {
 struct omap3_scratchpad_prcm_block {
 	u32 prm_clksrc_ctrl;
 	u32 prm_clksel;
-	u32 cm_clksel_core;
-	u32 cm_clksel_wkup;
-	u32 cm_clken_pll;
-	u32 cm_autoidle_pll;
-	u32 cm_clksel1_pll;
-	u32 cm_clksel2_pll;
-	u32 cm_clksel3_pll;
-	u32 cm_clken_pll_mpu;
-	u32 cm_autoidle_pll_mpu;
-	u32 cm_clksel1_pll_mpu;
-	u32 cm_clksel2_pll_mpu;
+	u32 cm_contents[11];
 	u32 prcm_block_size;
 };
 
@@ -347,34 +337,9 @@ void omap3_save_scratchpad_contents(void)
 	prcm_block_contents.prm_clksel =
 		omap2_prm_read_mod_reg(OMAP3430_CCR_MOD,
 				       OMAP3_PRM_CLKSEL_OFFSET);
-	prcm_block_contents.cm_clksel_core =
-			omap2_cm_read_mod_reg(CORE_MOD, CM_CLKSEL);
-	prcm_block_contents.cm_clksel_wkup =
-			omap2_cm_read_mod_reg(WKUP_MOD, CM_CLKSEL);
-	prcm_block_contents.cm_clken_pll =
-			omap2_cm_read_mod_reg(PLL_MOD, CM_CLKEN);
-	/*
-	 * As per erratum i671, ROM code does not respect the PER DPLL
-	 * programming scheme if CM_AUTOIDLE_PLL..AUTO_PERIPH_DPLL == 1.
-	 * Then,  in anycase, clear these bits to avoid extra latencies.
-	 */
-	prcm_block_contents.cm_autoidle_pll =
-			omap2_cm_read_mod_reg(PLL_MOD, CM_AUTOIDLE) &
-			~OMAP3430_AUTO_PERIPH_DPLL_MASK;
-	prcm_block_contents.cm_clksel1_pll =
-			omap2_cm_read_mod_reg(PLL_MOD, OMAP3430_CM_CLKSEL1_PLL);
-	prcm_block_contents.cm_clksel2_pll =
-			omap2_cm_read_mod_reg(PLL_MOD, OMAP3430_CM_CLKSEL2_PLL);
-	prcm_block_contents.cm_clksel3_pll =
-			omap2_cm_read_mod_reg(PLL_MOD, OMAP3430_CM_CLKSEL3);
-	prcm_block_contents.cm_clken_pll_mpu =
-			omap2_cm_read_mod_reg(MPU_MOD, OMAP3430_CM_CLKEN_PLL);
-	prcm_block_contents.cm_autoidle_pll_mpu =
-			omap2_cm_read_mod_reg(MPU_MOD, OMAP3430_CM_AUTOIDLE_PLL);
-	prcm_block_contents.cm_clksel1_pll_mpu =
-			omap2_cm_read_mod_reg(MPU_MOD, OMAP3430_CM_CLKSEL1_PLL);
-	prcm_block_contents.cm_clksel2_pll_mpu =
-			omap2_cm_read_mod_reg(MPU_MOD, OMAP3430_CM_CLKSEL2_PLL);
+
+	omap3_cm_save_scratchpad_contents(prcm_block_contents.cm_contents);
+
 	prcm_block_contents.prcm_block_size = 0x0;
 
 	/* Populate the SDRC block contents */
-- 
cgit 


From 49e03402327ab69a26f604398982ef14123900a2 Mon Sep 17 00:00:00 2001
From: Tero Kristo <t-kristo@ti.com>
Date: Fri, 11 Oct 2013 19:15:38 +0300
Subject: ARM: OMAP3: control: add API for setting IVA bootmode

OMAP3 PM core requires IVA2 bootmode to be set to idle during init. Currently,
a direct register write is used for this. Add a new ctrl API for this purpose
instead.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/control.c | 11 +++++++++++
 arch/arm/mach-omap2/control.h |  1 +
 arch/arm/mach-omap2/pm34xx.c  |  3 +--
 3 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c
index a59711454543..44bb4d544dcf 100644
--- a/arch/arm/mach-omap2/control.c
+++ b/arch/arm/mach-omap2/control.c
@@ -569,4 +569,15 @@ int omap3_ctrl_save_padconf(void)
 	return 0;
 }
 
+/**
+ * omap3_ctrl_set_iva_bootmode_idle - sets the IVA2 bootmode to idle
+ *
+ * Sets the bootmode for IVA2 to idle. This is needed by the PM code to
+ * force disable IVA2 so that it does not prevent any low-power states.
+ */
+void omap3_ctrl_set_iva_bootmode_idle(void)
+{
+	omap_ctrl_writel(OMAP3_IVA2_BOOTMOD_IDLE,
+			 OMAP343X_CONTROL_IVA2_BOOTMOD);
+}
 #endif /* CONFIG_ARCH_OMAP3 && CONFIG_PM */
diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h
index f7d7c2ef1b40..da054801b114 100644
--- a/arch/arm/mach-omap2/control.h
+++ b/arch/arm/mach-omap2/control.h
@@ -427,6 +427,7 @@ extern void omap_ctrl_write_dsp_boot_addr(u32 bootaddr);
 extern void omap_ctrl_write_dsp_boot_mode(u8 bootmode);
 extern void omap3630_ctrl_disable_rta(void);
 extern int omap3_ctrl_save_padconf(void);
+extern void omap3_ctrl_set_iva_bootmode_idle(void);
 extern void omap2_set_globals_control(void __iomem *ctrl,
 				      void __iomem *ctrl_pad);
 #else
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 5a2d8034c8de..93b80e5da8d4 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -430,8 +430,7 @@ static void __init omap3_iva_idle(void)
 			 OMAP3430_IVA2_MOD, CM_FCLKEN);
 
 	/* Set IVA2 boot mode to 'idle' */
-	omap_ctrl_writel(OMAP3_IVA2_BOOTMOD_IDLE,
-			 OMAP343X_CONTROL_IVA2_BOOTMOD);
+	omap3_ctrl_set_iva_bootmode_idle();
 
 	/* Un-reset IVA2 */
 	omap2_prm_write_mod_reg(0, OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL);
-- 
cgit 


From 58f01aa93ff590ddd6a77cde41c25b6022d93769 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 19 Oct 2013 09:31:59 -0700
Subject: Bluetooth: Fix UUID values in debugfs file

The uuid entry struct is used for the UUID byte stream. That is
actually the wrong value. The correct value is uuid->uuid.

Besides fixing this up, use the %pUb modifier to print the UUID
string. However since the UUID is stored in big endian with
reversed byte order, change the byte order before printing.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 22 ++++++++++------------
 1 file changed, 10 insertions(+), 12 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index b5c8cb3c96d2..c5fb3a3a6a13 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -193,18 +193,16 @@ static int uuids_show(struct seq_file *f, void *p)
 
 	hci_dev_lock(hdev);
 	list_for_each_entry(uuid, &hdev->uuids, list) {
-		u32 data0, data5;
-		u16 data1, data2, data3, data4;
-
-		data5 = get_unaligned_le32(uuid);
-		data4 = get_unaligned_le16(uuid + 4);
-		data3 = get_unaligned_le16(uuid + 6);
-		data2 = get_unaligned_le16(uuid + 8);
-		data1 = get_unaligned_le16(uuid + 10);
-		data0 = get_unaligned_le32(uuid + 12);
-
-		seq_printf(f, "%.8x-%.4x-%.4x-%.4x-%.4x%.8x\n",
-			   data0, data1, data2, data3, data4, data5);
+		u8 i, val[16];
+
+		/* The Bluetooth UUID values are stored in big endian,
+		 * but with reversed byte order. So convert them into
+		 * the right order for the %pUb modifier.
+		 */
+		for (i = 0; i < 16; i++)
+			val[i] = uuid->uuid[15 - i];
+
+		seq_printf(f, "%pUb\n", val);
 	}
 	hci_dev_unlock(hdev);
 
-- 
cgit 


From 2be48b654242bf0fe3a72e1c3fbc790154e3984a Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 19 Oct 2013 10:19:15 -0700
Subject: Bluetooth: Fix minor coding style issue in hci_core.c

A few variable assignments ended up with missing a space between the
variable and equal sign.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/hci_core.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index c5fb3a3a6a13..6ccc4eb9e55e 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -423,7 +423,7 @@ static int idle_timeout_set(void *data, u64 val)
 		return -EINVAL;
 
 	hci_dev_lock(hdev);
-	hdev->idle_timeout= val;
+	hdev->idle_timeout = val;
 	hci_dev_unlock(hdev);
 
 	return 0;
@@ -451,7 +451,7 @@ static int sniff_min_interval_set(void *data, u64 val)
 		return -EINVAL;
 
 	hci_dev_lock(hdev);
-	hdev->sniff_min_interval= val;
+	hdev->sniff_min_interval = val;
 	hci_dev_unlock(hdev);
 
 	return 0;
@@ -479,7 +479,7 @@ static int sniff_max_interval_set(void *data, u64 val)
 		return -EINVAL;
 
 	hci_dev_lock(hdev);
-	hdev->sniff_max_interval= val;
+	hdev->sniff_max_interval = val;
 	hci_dev_unlock(hdev);
 
 	return 0;
@@ -588,7 +588,7 @@ static int conn_min_interval_set(void *data, u64 val)
 		return -EINVAL;
 
 	hci_dev_lock(hdev);
-	hdev->le_conn_min_interval= val;
+	hdev->le_conn_min_interval = val;
 	hci_dev_unlock(hdev);
 
 	return 0;
@@ -616,7 +616,7 @@ static int conn_max_interval_set(void *data, u64 val)
 		return -EINVAL;
 
 	hci_dev_lock(hdev);
-	hdev->le_conn_max_interval= val;
+	hdev->le_conn_max_interval = val;
 	hci_dev_unlock(hdev);
 
 	return 0;
-- 
cgit 


From d10d2d485497cdc62a7660cd981f8f1ae0dffe7d Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben.dooks@codethink.co.uk>
Date: Fri, 1 Feb 2013 09:41:37 +0000
Subject: ARM: fix ARCH_IXP4xx usage of ARCH_SUPPORTS_BIG_ENDIAN

The Kconfig for arch/arm/mach-ixp4xx has a local definition
of ARCH_SUPPORTS_BIG_ENDIAN which could be used elsewhere.
This means that if IXP4xx is selected and this symbol is
selected eleswhere then an warning is produced.

Clean the following error up by making the symbol be
selected by the main ARCH_IXP4XX definition and have a
common definition in arch/arm/mm/Kconfig

warning: (ARCH_xxx) selects ARCH_SUPPORTS_BIG_ENDIAN which has unmet direct dependencies (ARCH_IXP4XX)
warning: (ARCH_xxx) selects ARCH_SUPPORTS_BIG_ENDIAN which has unmet direct dependencies (ARCH_IXP4XX)

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
---
 arch/arm/Kconfig             | 1 +
 arch/arm/mach-ixp4xx/Kconfig | 4 ----
 arch/arm/mm/Kconfig          | 6 ++++++
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1ad6fb6c094d..f048e1453db3 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -481,6 +481,7 @@ config ARCH_IXP4XX
 	bool "IXP4xx-based"
 	depends on MMU
 	select ARCH_HAS_DMA_SET_COHERENT_MASK
+	select ARCH_SUPPORTS_BIG_ENDIAN
 	select ARCH_REQUIRE_GPIOLIB
 	select CLKSRC_MMIO
 	select CPU_XSCALE
diff --git a/arch/arm/mach-ixp4xx/Kconfig b/arch/arm/mach-ixp4xx/Kconfig
index 30e1ebe3a891..c342dc4e8a45 100644
--- a/arch/arm/mach-ixp4xx/Kconfig
+++ b/arch/arm/mach-ixp4xx/Kconfig
@@ -1,9 +1,5 @@
 if ARCH_IXP4XX
 
-config ARCH_SUPPORTS_BIG_ENDIAN
-	bool
-	default y
-
 menu "Intel IXP4xx Implementation Options"
 
 comment "IXP4xx Platforms"
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index cd2c88e7a8f7..1f8fed94c2a4 100644
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -952,3 +952,9 @@ config ARCH_HAS_BARRIERS
 	help
 	  This option allows the use of custom mandatory barriers
 	  included via the mach/barriers.h file.
+
+config ARCH_SUPPORTS_BIG_ENDIAN
+	bool
+	help
+	  This option specifies the architecture can support big endian
+	  operation.
-- 
cgit 


From 457c2403c513c74f60d5757fd11ae927e5554a38 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben.dooks@codethink.co.uk>
Date: Tue, 12 Feb 2013 18:59:57 +0000
Subject: ARM: asm: Add ARM_BE8() assembly helper

Add ARM_BE8() helper to wrap any code conditional on being
compile when CONFIG_ARM_ENDIAN_BE8 is selected and convert
existing places where this is to use it.

Acked-by: Nicolas Pitre <nico@linaro.org>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
---
 arch/arm/boot/compressed/head.S  | 8 ++------
 arch/arm/include/asm/assembler.h | 7 +++++++
 arch/arm/kernel/entry-armv.S     | 5 ++---
 arch/arm/kernel/entry-common.S   | 4 +---
 arch/arm/mm/abort-ev6.S          | 5 ++---
 arch/arm/mm/proc-v6.S            | 4 +---
 arch/arm/mm/proc-v7.S            | 4 +---
 7 files changed, 16 insertions(+), 21 deletions(-)

diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index 75189f13cf54..c912c2a95de8 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -699,9 +699,7 @@ __armv4_mmu_cache_on:
 		mrc	p15, 0, r0, c1, c0, 0	@ read control reg
 		orr	r0, r0, #0x5000		@ I-cache enable, RR cache replacement
 		orr	r0, r0, #0x0030
-#ifdef CONFIG_CPU_ENDIAN_BE8
-		orr	r0, r0, #1 << 25	@ big-endian page tables
-#endif
+ ARM_BE8(	orr	r0, r0, #1 << 25 )	@ big-endian page tables
 		bl	__common_mmu_cache_on
 		mov	r0, #0
 		mcr	p15, 0, r0, c8, c7, 0	@ flush I,D TLBs
@@ -728,9 +726,7 @@ __armv7_mmu_cache_on:
 		orr	r0, r0, #1 << 22	@ U (v6 unaligned access model)
 						@ (needed for ARM1176)
 #ifdef CONFIG_MMU
-#ifdef CONFIG_CPU_ENDIAN_BE8
-		orr	r0, r0, #1 << 25	@ big-endian page tables
-#endif
+ ARM_BE8(	orr	r0, r0, #1 << 25 )	@ big-endian page tables
 		mrcne   p15, 0, r6, c2, c0, 2   @ read ttb control reg
 		orrne	r0, r0, #1		@ MMU enabled
 		movne	r1, #0xfffffffd		@ domain 0 = client
diff --git a/arch/arm/include/asm/assembler.h b/arch/arm/include/asm/assembler.h
index fcc1b5bf6979..5c2285160575 100644
--- a/arch/arm/include/asm/assembler.h
+++ b/arch/arm/include/asm/assembler.h
@@ -53,6 +53,13 @@
 #define put_byte_3      lsl #0
 #endif
 
+/* Select code for any configuration running in BE8 mode */
+#ifdef CONFIG_CPU_ENDIAN_BE8
+#define ARM_BE8(code...) code
+#else
+#define ARM_BE8(code...)
+#endif
+
 /*
  * Data preload for architectures that support it
  */
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 9cbe70c8b0ef..55090fbb81a2 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -416,9 +416,8 @@ __und_usr:
 	bne	__und_usr_thumb
 	sub	r4, r2, #4			@ ARM instr at LR - 4
 1:	ldrt	r0, [r4]
-#ifdef CONFIG_CPU_ENDIAN_BE8
-	rev	r0, r0				@ little endian instruction
-#endif
+ ARM_BE8(rev	r0, r0)				@ little endian instruction
+
 	@ r0 = 32-bit ARM instruction which caused the exception
 	@ r2 = PC value for the following instruction (:= regs->ARM_pc)
 	@ r4 = PC value for the faulting instruction
diff --git a/arch/arm/kernel/entry-common.S b/arch/arm/kernel/entry-common.S
index bc6bd9683ba4..a2dcafdf1bc8 100644
--- a/arch/arm/kernel/entry-common.S
+++ b/arch/arm/kernel/entry-common.S
@@ -393,9 +393,7 @@ ENTRY(vector_swi)
 #else
  USER(	ldr	r10, [lr, #-4]		)	@ get SWI instruction
 #endif
-#ifdef CONFIG_CPU_ENDIAN_BE8
-	rev	r10, r10			@ little endian instruction
-#endif
+ ARM_BE8(rev	r10, r10)			@ little endian instruction
 
 #elif defined(CONFIG_AEABI)
 
diff --git a/arch/arm/mm/abort-ev6.S b/arch/arm/mm/abort-ev6.S
index 80741992a9fc..3815a8262af0 100644
--- a/arch/arm/mm/abort-ev6.S
+++ b/arch/arm/mm/abort-ev6.S
@@ -38,9 +38,8 @@ ENTRY(v6_early_abort)
 	bne	do_DataAbort
 	bic	r1, r1, #1 << 11		@ clear bit 11 of FSR
 	ldr	r3, [r4]			@ read aborted ARM instruction
-#ifdef CONFIG_CPU_ENDIAN_BE8
-	rev	r3, r3
-#endif
+ ARM_BE8(rev	r3, r3)
+
 	do_ldrd_abort tmp=ip, insn=r3
 	tst	r3, #1 << 20			@ L = 0 -> write
 	orreq	r1, r1, #1 << 11		@ yes.
diff --git a/arch/arm/mm/proc-v6.S b/arch/arm/mm/proc-v6.S
index 1128064fddcb..45dc29f85d56 100644
--- a/arch/arm/mm/proc-v6.S
+++ b/arch/arm/mm/proc-v6.S
@@ -220,9 +220,7 @@ __v6_setup:
 #endif /* CONFIG_MMU */
 	adr	r5, v6_crval
 	ldmia	r5, {r5, r6}
-#ifdef CONFIG_CPU_ENDIAN_BE8
-	orr	r6, r6, #1 << 25		@ big-endian page tables
-#endif
+ ARM_BE8(orr	r6, r6, #1 << 25)		@ big-endian page tables
 	mrc	p15, 0, r0, c1, c0, 0		@ read control register
 	bic	r0, r0, r5			@ clear bits them
 	orr	r0, r0, r6			@ set them
diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index c63d9bdee51e..60920f62fdf5 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -367,9 +367,7 @@ __v7_setup:
 #endif
 	adr	r5, v7_crval
 	ldmia	r5, {r5, r6}
-#ifdef CONFIG_CPU_ENDIAN_BE8
-	orr	r6, r6, #1 << 25		@ big-endian page tables
-#endif
+ ARM_BE8(orr	r6, r6, #1 << 25)		@ big-endian page tables
 #ifdef CONFIG_SWP_EMULATE
 	orr     r5, r5, #(1 << 10)              @ set SW bit in "clear"
 	bic     r6, r6, #(1 << 10)              @ clear it in "mmuset"
-- 
cgit 


From 2f9bf9beddb1649485b47302a5aba9761cbc9084 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben.dooks@codethink.co.uk>
Date: Fri, 1 Feb 2013 16:23:08 +0100
Subject: ARM: fixup_pv_table bug when CPU_ENDIAN_BE8

The fixup_pv_table assumes that the instructions are in the same
endian configuration as the data, but when the CPU is running in
BE8 the instructions stay in little-endian format.

Make sure if CONFIG_CPU_ENDIAN_BE8 is set that we do all the
alterations to the instructions taking in to account the LDR/STR
will be swapping the data endian-ness.

Since the code is only modifying a byte, we avoid dual-swapping
the data, and just change the bits we clear and ORR in (in the
case where the code is not thumb2).

For thumb2, we add the necessary rev16 instructions to ensure that
the instructions are processed in the correct format, as it was
easier than re-writing the code to contain a mask and shift.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
 arch/arm/kernel/head.S | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 2c7cc1e03473..9e5906cf7d32 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -582,8 +582,10 @@ __fixup_a_pv_table:
 	b	2f
 1:	add     r7, r3
 	ldrh	ip, [r7, #2]
+ARM_BE8(rev16	ip, ip)
 	and	ip, 0x8f00
 	orr	ip, r6	@ mask in offset bits 31-24
+ARM_BE8(rev16	ip, ip)
 	strh	ip, [r7, #2]
 2:	cmp	r4, r5
 	ldrcc	r7, [r4], #4	@ use branch for delay slot
@@ -592,8 +594,14 @@ __fixup_a_pv_table:
 #else
 	b	2f
 1:	ldr	ip, [r7, r3]
+#ifdef CONFIG_CPU_ENDIAN_BE8
+	@ in BE8, we load data in BE, but instructions still in LE
+	bic	ip, ip, #0xff000000
+	orr	ip, ip, r6, lsl#24
+#else
 	bic	ip, ip, #0x000000ff
 	orr	ip, ip, r6	@ mask in offset bits 31-24
+#endif
 	str	ip, [r7, r3]
 2:	cmp	r4, r5
 	ldrcc	r7, [r4], #4	@ use branch for delay slot
-- 
cgit 


From 97bcb0fea590d3d704f985bec08f342d28992634 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben.dooks@codethink.co.uk>
Date: Fri, 1 Feb 2013 09:40:42 +0000
Subject: ARM: set BE8 if LE in head code

If we are booting in LE and compiled for BE8, then add code to
set the state to bE8. Since the instruction stream is always LE,
we do not need to do anything special to the instruction.

Also ensure that the secondary processors are started in the same mode.

Note, we do add about 20 bytes to the kernel image, but it seems easier
to do this than adding another configuration to change.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
 arch/arm/boot/compressed/head.S | 1 +
 arch/arm/kernel/head.S          | 4 ++++
 arch/arm/kernel/sleep.S         | 1 +
 3 files changed, 6 insertions(+)

diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index c912c2a95de8..066b03480b63 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -135,6 +135,7 @@ start:
 		.word	_edata			@ zImage end address
  THUMB(		.thumb			)
 1:
+ ARM_BE8(	setend	be )			@ go BE8 if compiled for BE8
 		mrs	r9, cpsr
 #ifdef CONFIG_ARM_VIRT_EXT
 		bl	__hyp_stub_install	@ get into SVC mode, reversibly
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 9e5906cf7d32..a047acfa6b6d 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -77,6 +77,7 @@
 
 	__HEAD
 ENTRY(stext)
+ ARM_BE8(setend	be )			@ ensure we are in BE8 mode
 
  THUMB(	adr	r9, BSYM(1f)	)	@ Kernel is always entered in ARM.
  THUMB(	bx	r9		)	@ If this is a Thumb-2 kernel,
@@ -352,6 +353,9 @@ ENTRY(secondary_startup)
 	 * the processor type - there is no need to check the machine type
 	 * as it has already been validated by the primary processor.
 	 */
+
+ ARM_BE8(setend	be)				@ ensure we are in BE8 mode
+
 #ifdef CONFIG_ARM_VIRT_EXT
 	bl	__hyp_stub_install_secondary
 #endif
diff --git a/arch/arm/kernel/sleep.S b/arch/arm/kernel/sleep.S
index db1536b8b30b..716343caa960 100644
--- a/arch/arm/kernel/sleep.S
+++ b/arch/arm/kernel/sleep.S
@@ -130,6 +130,7 @@ ENDPROC(cpu_resume_after_mmu)
 	.data
 	.align
 ENTRY(cpu_resume)
+ARM_BE8(setend be)			@ ensure we are in BE mode
 	mov	r1, #0
 	ALT_SMP(mrc p15, 0, r0, c0, c0, 5)
 	ALT_UP_B(1f)
-- 
cgit 


From 76e3faf156fa95b6465e747d702b94faf67117fc Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben.dooks@codethink.co.uk>
Date: Wed, 6 Feb 2013 18:25:36 +0000
Subject: ARM: pl01x debug code endian fix

The PL01X debug code needs to take into account which endian mode the
processor is running in. If it is big-endian, ensure the data is swapped
appropriately.

Note, we could do this slightly more efficiently if we have an macro to
do the necessary swap for the bits used by test.

Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
---
 arch/arm/include/debug/pl01x.S | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/include/debug/pl01x.S b/arch/arm/include/debug/pl01x.S
index 37c6895b87e6..92ef808a2337 100644
--- a/arch/arm/include/debug/pl01x.S
+++ b/arch/arm/include/debug/pl01x.S
@@ -25,12 +25,14 @@
 
 		.macro	waituart,rd,rx
 1001:		ldr	\rd, [\rx, #UART01x_FR]
+ ARM_BE8(	rev	\rd, \rd )
 		tst	\rd, #UART01x_FR_TXFF
 		bne	1001b
 		.endm
 
 		.macro	busyuart,rd,rx
 1001:		ldr	\rd, [\rx, #UART01x_FR]
+ ARM_BE8(	rev	\rd, \rd )
 		tst	\rd, #UART01x_FR_BUSY
 		bne	1001b
 		.endm
-- 
cgit 


From 2e874ea342146130206f8b39f2103f33690a7547 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben.dooks@codethink.co.uk>
Date: Wed, 6 Feb 2013 18:44:20 +0000
Subject: ARM: twd: data endian fix

Ensure the twd driver uses the correct calls to access the hardware
to ensure that we do not end up with data in the wrong endian format.

Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
---
 arch/arm/kernel/smp_twd.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/arch/arm/kernel/smp_twd.c b/arch/arm/kernel/smp_twd.c
index 2985c9f0905d..6591e26fc13f 100644
--- a/arch/arm/kernel/smp_twd.c
+++ b/arch/arm/kernel/smp_twd.c
@@ -45,7 +45,7 @@ static void twd_set_mode(enum clock_event_mode mode,
 	case CLOCK_EVT_MODE_PERIODIC:
 		ctrl = TWD_TIMER_CONTROL_ENABLE | TWD_TIMER_CONTROL_IT_ENABLE
 			| TWD_TIMER_CONTROL_PERIODIC;
-		__raw_writel(DIV_ROUND_CLOSEST(twd_timer_rate, HZ),
+		writel_relaxed(DIV_ROUND_CLOSEST(twd_timer_rate, HZ),
 			twd_base + TWD_TIMER_LOAD);
 		break;
 	case CLOCK_EVT_MODE_ONESHOT:
@@ -58,18 +58,18 @@ static void twd_set_mode(enum clock_event_mode mode,
 		ctrl = 0;
 	}
 
-	__raw_writel(ctrl, twd_base + TWD_TIMER_CONTROL);
+	writel_relaxed(ctrl, twd_base + TWD_TIMER_CONTROL);
 }
 
 static int twd_set_next_event(unsigned long evt,
 			struct clock_event_device *unused)
 {
-	unsigned long ctrl = __raw_readl(twd_base + TWD_TIMER_CONTROL);
+	unsigned long ctrl = readl_relaxed(twd_base + TWD_TIMER_CONTROL);
 
 	ctrl |= TWD_TIMER_CONTROL_ENABLE;
 
-	__raw_writel(evt, twd_base + TWD_TIMER_COUNTER);
-	__raw_writel(ctrl, twd_base + TWD_TIMER_CONTROL);
+	writel_relaxed(evt, twd_base + TWD_TIMER_COUNTER);
+	writel_relaxed(ctrl, twd_base + TWD_TIMER_CONTROL);
 
 	return 0;
 }
@@ -82,8 +82,8 @@ static int twd_set_next_event(unsigned long evt,
  */
 static int twd_timer_ack(void)
 {
-	if (__raw_readl(twd_base + TWD_TIMER_INTSTAT)) {
-		__raw_writel(1, twd_base + TWD_TIMER_INTSTAT);
+	if (readl_relaxed(twd_base + TWD_TIMER_INTSTAT)) {
+		writel_relaxed(1, twd_base + TWD_TIMER_INTSTAT);
 		return 1;
 	}
 
@@ -211,15 +211,15 @@ static void twd_calibrate_rate(void)
 		waitjiffies += 5;
 
 				 /* enable, no interrupt or reload */
-		__raw_writel(0x1, twd_base + TWD_TIMER_CONTROL);
+		writel_relaxed(0x1, twd_base + TWD_TIMER_CONTROL);
 
 				 /* maximum value */
-		__raw_writel(0xFFFFFFFFU, twd_base + TWD_TIMER_COUNTER);
+		writel_relaxed(0xFFFFFFFFU, twd_base + TWD_TIMER_COUNTER);
 
 		while (get_jiffies_64() < waitjiffies)
 			udelay(10);
 
-		count = __raw_readl(twd_base + TWD_TIMER_COUNTER);
+		count = readl_relaxed(twd_base + TWD_TIMER_COUNTER);
 
 		twd_timer_rate = (0xFFFFFFFFU - count) * (HZ / 5);
 
@@ -277,7 +277,7 @@ static void twd_timer_setup(void)
 	 * bother with the below.
 	 */
 	if (per_cpu(percpu_setup_called, cpu)) {
-		__raw_writel(0, twd_base + TWD_TIMER_CONTROL);
+		writel_relaxed(0, twd_base + TWD_TIMER_CONTROL);
 		clockevents_register_device(clk);
 		enable_percpu_irq(clk->irq, 0);
 		return;
@@ -290,7 +290,7 @@ static void twd_timer_setup(void)
 	 * The following is done once per CPU the first time .setup() is
 	 * called.
 	 */
-	__raw_writel(0, twd_base + TWD_TIMER_CONTROL);
+	writel_relaxed(0, twd_base + TWD_TIMER_CONTROL);
 
 	clk->name = "local_timer";
 	clk->features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT |
-- 
cgit 


From 099a4809133dc6548d37cc143ab0cb9c2eba97bb Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben.dooks@codethink.co.uk>
Date: Thu, 7 Feb 2013 11:14:21 +0000
Subject: ARM: smp_scu: data endian fixes

The smp_scu driver needs to use the relaxed readl/write accessors
to avoid any issues with the endian mode the processor core is in.

Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
---
 arch/arm/kernel/smp_scu.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/arm/kernel/smp_scu.c b/arch/arm/kernel/smp_scu.c
index 5bc1a63284e3..1aafa0d785eb 100644
--- a/arch/arm/kernel/smp_scu.c
+++ b/arch/arm/kernel/smp_scu.c
@@ -28,7 +28,7 @@
  */
 unsigned int __init scu_get_core_count(void __iomem *scu_base)
 {
-	unsigned int ncores = __raw_readl(scu_base + SCU_CONFIG);
+	unsigned int ncores = readl_relaxed(scu_base + SCU_CONFIG);
 	return (ncores & 0x03) + 1;
 }
 
@@ -42,19 +42,19 @@ void scu_enable(void __iomem *scu_base)
 #ifdef CONFIG_ARM_ERRATA_764369
 	/* Cortex-A9 only */
 	if ((read_cpuid_id() & 0xff0ffff0) == 0x410fc090) {
-		scu_ctrl = __raw_readl(scu_base + 0x30);
+		scu_ctrl = readl_relaxed(scu_base + 0x30);
 		if (!(scu_ctrl & 1))
-			__raw_writel(scu_ctrl | 0x1, scu_base + 0x30);
+			writel_relaxed(scu_ctrl | 0x1, scu_base + 0x30);
 	}
 #endif
 
-	scu_ctrl = __raw_readl(scu_base + SCU_CTRL);
+	scu_ctrl = readl_relaxed(scu_base + SCU_CTRL);
 	/* already enabled? */
 	if (scu_ctrl & 1)
 		return;
 
 	scu_ctrl |= 1;
-	__raw_writel(scu_ctrl, scu_base + SCU_CTRL);
+	writel_relaxed(scu_ctrl, scu_base + SCU_CTRL);
 
 	/*
 	 * Ensure that the data accessed by CPU0 before the SCU was
@@ -80,9 +80,9 @@ int scu_power_mode(void __iomem *scu_base, unsigned int mode)
 	if (mode > 3 || mode == 1 || cpu > 3)
 		return -EINVAL;
 
-	val = __raw_readb(scu_base + SCU_CPU_STATUS + cpu) & ~0x03;
+	val = readb_relaxed(scu_base + SCU_CPU_STATUS + cpu) & ~0x03;
 	val |= mode;
-	__raw_writeb(val, scu_base + SCU_CPU_STATUS + cpu);
+	writeb_relaxed(val, scu_base + SCU_CPU_STATUS + cpu);
 
 	return 0;
 }
-- 
cgit 


From 50eec2fce45ed48575f1c0582b748e409da08511 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben.dooks@codethink.co.uk>
Date: Fri, 1 Feb 2013 09:31:34 +0000
Subject: ARM: highbank: enable big-endian

Apart from a xgmac driver issue, the highbank seems to work correctly in
big-endian mode. Allow the selection of big-endian in the system.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Acked-by: Rob Herring <rob.herring@calxeda.com>
---
 arch/arm/mach-highbank/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-highbank/Kconfig b/arch/arm/mach-highbank/Kconfig
index 8e8437dea3ce..3c3bff715b47 100644
--- a/arch/arm/mach-highbank/Kconfig
+++ b/arch/arm/mach-highbank/Kconfig
@@ -4,6 +4,7 @@ config ARCH_HIGHBANK
 	select ARCH_HAS_CPUFREQ
 	select ARCH_HAS_HOLES_MEMORYMODEL
 	select ARCH_HAS_OPP
+	select ARCH_SUPPORTS_BIG_ENDIAN
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARM_AMBA
 	select ARM_ERRATA_764369
-- 
cgit 


From bca028e7c2537fea9f401c20dd7b2103358b5efe Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben.dooks@codethink.co.uk>
Date: Fri, 1 Feb 2013 10:36:22 +0000
Subject: ARM: mvebu: support running big-endian

Add indication we can run these cores in BE mode, and ensure that the
secondary CPU is set to big-endian mode in the initialisation code as
the initial code runs little-endian.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/mach-mvebu/Kconfig        | 1 +
 arch/arm/mach-mvebu/coherency_ll.S | 3 +++
 arch/arm/mach-mvebu/headsmp.S      | 4 ++++
 3 files changed, 8 insertions(+)

diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig
index 9eb63d724602..5e269d7263ce 100644
--- a/arch/arm/mach-mvebu/Kconfig
+++ b/arch/arm/mach-mvebu/Kconfig
@@ -1,5 +1,6 @@
 config ARCH_MVEBU
 	bool "Marvell SOCs with Device Tree support" if ARCH_MULTI_V7
+	select ARCH_SUPPORTS_BIG_ENDIAN
 	select CLKSRC_MMIO
 	select COMMON_CLK
 	select GENERIC_CLOCKEVENTS
diff --git a/arch/arm/mach-mvebu/coherency_ll.S b/arch/arm/mach-mvebu/coherency_ll.S
index 5476669ba905..ee7598fe75db 100644
--- a/arch/arm/mach-mvebu/coherency_ll.S
+++ b/arch/arm/mach-mvebu/coherency_ll.S
@@ -20,6 +20,8 @@
 #define ARMADA_XP_CFB_CTL_REG_OFFSET 0x0
 #define ARMADA_XP_CFB_CFG_REG_OFFSET 0x4
 
+#include <asm/assembler.h>
+
 	.text
 /*
  * r0: Coherency fabric base register address
@@ -29,6 +31,7 @@ ENTRY(ll_set_cpu_coherent)
 	/* Create bit by cpu index */
 	mov	r3, #(1 << 24)
 	lsl	r1, r3, r1
+ARM_BE8(rev	r1, r1)
 
 	/* Add CPU to SMP group - Atomic */
 	add	r3, r0, #ARMADA_XP_CFB_CTL_REG_OFFSET
diff --git a/arch/arm/mach-mvebu/headsmp.S b/arch/arm/mach-mvebu/headsmp.S
index 8a1b0c96e9ec..3dd80df428f7 100644
--- a/arch/arm/mach-mvebu/headsmp.S
+++ b/arch/arm/mach-mvebu/headsmp.S
@@ -21,12 +21,16 @@
 #include <linux/linkage.h>
 #include <linux/init.h>
 
+#include <asm/assembler.h>
+
 /*
  * Armada XP specific entry point for secondary CPUs.
  * We add the CPU to the coherency fabric and then jump to secondary
  * startup
  */
 ENTRY(armada_xp_secondary_startup)
+ ARM_BE8(setend	be )			@ go BE8 if entered LE
+
 	/* Get coherency fabric base physical address */
 	adr	r0, 1f
 	ldr	r1, [r0]
-- 
cgit 


From 98dec91fa36a4a74f7c44dd2dfb000203656f4f4 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben.dooks@codethink.co.uk>
Date: Tue, 28 May 2013 21:34:50 +0100
Subject: ARM: vexpress: add big endian support

Add support for the versatile express systems to boot big-endian.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
---
 arch/arm/mach-vexpress/Kconfig    | 1 +
 arch/arm/plat-versatile/headsmp.S | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig
index 365795447804..4fe8ebe5b2d4 100644
--- a/arch/arm/mach-vexpress/Kconfig
+++ b/arch/arm/mach-vexpress/Kconfig
@@ -1,6 +1,7 @@
 config ARCH_VEXPRESS
 	bool "ARM Ltd. Versatile Express family" if ARCH_MULTI_V7
 	select ARCH_REQUIRE_GPIOLIB
+	select ARCH_SUPPORTS_BIG_ENDIAN
 	select ARM_AMBA
 	select ARM_GIC
 	select ARM_TIMER_SP804
diff --git a/arch/arm/plat-versatile/headsmp.S b/arch/arm/plat-versatile/headsmp.S
index 2677bc3762d7..40f27e52de75 100644
--- a/arch/arm/plat-versatile/headsmp.S
+++ b/arch/arm/plat-versatile/headsmp.S
@@ -10,6 +10,7 @@
  */
 #include <linux/linkage.h>
 #include <linux/init.h>
+#include <asm/assembler.h>
 
 /*
  * Realview/Versatile Express specific entry point for secondary CPUs.
@@ -17,6 +18,7 @@
  * until we're ready for them to initialise.
  */
 ENTRY(versatile_secondary_startup)
+ ARM_BE8(setend	be)
 	mrc	p15, 0, r0, c0, c0, 5
 	bic	r0, #0xff000000
 	adr	r4, 1f
-- 
cgit 


From 8592edf0dec8159fde379eb7e056eaddbbd697f2 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben.dooks@codethink.co.uk>
Date: Thu, 18 Jul 2013 21:10:56 +0100
Subject: ARM: alignment: correctly decode instructions in BE8 mode.

If we are in BE8 mode, we must deal with the instruction stream being
in LE order when data is being loaded in BE order. Ensure the data is
swapped before processing to avoid thre following:

Change to using <asm/opcodes.h> to provide the necessary conversion
functions to change the byte ordering.

This stops the following warning messages from the kernel on a fault:

Unhandled fault: alignment exception (0x001) at 0xbfa09567
Alignment trap: not handling instruction 030091e8 at [<80333e8c>]

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
 arch/arm/mm/alignment.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index 6f4585b89078..924036473b16 100644
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -25,6 +25,7 @@
 #include <asm/cp15.h>
 #include <asm/system_info.h>
 #include <asm/unaligned.h>
+#include <asm/opcodes.h>
 
 #include "fault.h"
 
@@ -762,21 +763,25 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 	if (thumb_mode(regs)) {
 		u16 *ptr = (u16 *)(instrptr & ~1);
 		fault = probe_kernel_address(ptr, tinstr);
+		tinstr = __mem_to_opcode_thumb16(tinstr);
 		if (!fault) {
 			if (cpu_architecture() >= CPU_ARCH_ARMv7 &&
 			    IS_T32(tinstr)) {
 				/* Thumb-2 32-bit */
 				u16 tinst2 = 0;
 				fault = probe_kernel_address(ptr + 1, tinst2);
-				instr = (tinstr << 16) | tinst2;
+				tinst2 = __mem_to_opcode_thumb16(tinst2);
+				instr = __opcode_thumb32_compose(tinstr, tinst2);
 				thumb2_32b = 1;
 			} else {
 				isize = 2;
 				instr = thumb2arm(tinstr);
 			}
 		}
-	} else
+	} else {
 		fault = probe_kernel_address(instrptr, instr);
+		instr = __mem_to_opcode_arm(instr);
+	}
 
 	if (fault) {
 		type = TYPE_FAULT;
-- 
cgit 


From a79a0cb1d35ec422dcf493cef1bebf9fdfcfdb9a Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben.dooks@codethink.co.uk>
Date: Fri, 19 Jul 2013 17:12:05 +0100
Subject: ARM: traps: use <asm/opcodes.h> to get correct instruction order

The trap handler needs to take into account the endian configuration of
the system when loading instructions. Use <asm/opcodes.h> to provide the
necessary conversion functions.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
 arch/arm/kernel/traps.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 8fcda140358d..caf96da27360 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -34,6 +34,7 @@
 #include <asm/unwind.h>
 #include <asm/tls.h>
 #include <asm/system_misc.h>
+#include <asm/opcodes.h>
 
 static const char *handler[]= { "prefetch abort", "data abort", "address exception", "interrupt" };
 
@@ -402,25 +403,28 @@ asmlinkage void __exception do_undefinstr(struct pt_regs *regs)
 	if (processor_mode(regs) == SVC_MODE) {
 #ifdef CONFIG_THUMB2_KERNEL
 		if (thumb_mode(regs)) {
-			instr = ((u16 *)pc)[0];
+			instr = __mem_to_opcode_thumb16(((u16 *)pc)[0]);
 			if (is_wide_instruction(instr)) {
-				instr <<= 16;
-				instr |= ((u16 *)pc)[1];
+				u16 inst2;
+				inst2 = __mem_to_opcode_thumb16(((u16 *)pc)[1]);
+				instr = __opcode_thumb32_compose(instr, inst2);
 			}
 		} else
 #endif
-			instr = *(u32 *) pc;
+			instr = __mem_to_opcode_arm(*(u32 *) pc);
 	} else if (thumb_mode(regs)) {
 		if (get_user(instr, (u16 __user *)pc))
 			goto die_sig;
+		instr = __mem_to_opcode_thumb16(instr);
 		if (is_wide_instruction(instr)) {
 			unsigned int instr2;
 			if (get_user(instr2, (u16 __user *)pc+1))
 				goto die_sig;
-			instr <<= 16;
-			instr |= instr2;
+			instr2 = __mem_to_opcode_thumb16(instr2);
+			instr = __opcode_thumb32_compose(instr, instr2);
 		}
 	} else if (get_user(instr, (u32 __user *)pc)) {
+		instr = __mem_to_opcode_arm(instr);
 		goto die_sig;
 	}
 
-- 
cgit 


From f592d323bc2353db871d1e840f05b27e0730fb10 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben.dooks@codethink.co.uk>
Date: Fri, 19 Jul 2013 18:27:23 +0100
Subject: ARM: module: correctly relocate instructions in BE8

When in BE8 mode, our instructions are not in the same ordering as the
data, so use <asm/opcodes.h> to take this into account.

Note, also requires modules to be built --be8

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
---
 arch/arm/kernel/module.c | 57 +++++++++++++++++++++++++++++-------------------
 1 file changed, 34 insertions(+), 23 deletions(-)

diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
index 084dc8896986..5fdb4038f969 100644
--- a/arch/arm/kernel/module.c
+++ b/arch/arm/kernel/module.c
@@ -24,6 +24,7 @@
 #include <asm/sections.h>
 #include <asm/smp_plat.h>
 #include <asm/unwind.h>
+#include <asm/opcodes.h>
 
 #ifdef CONFIG_XIP_KERNEL
 /*
@@ -60,6 +61,7 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
 		Elf32_Sym *sym;
 		const char *symname;
 		s32 offset;
+		u32 tmp;
 #ifdef CONFIG_THUMB2_KERNEL
 		u32 upper, lower, sign, j1, j2;
 #endif
@@ -95,7 +97,8 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
 		case R_ARM_PC24:
 		case R_ARM_CALL:
 		case R_ARM_JUMP24:
-			offset = (*(u32 *)loc & 0x00ffffff) << 2;
+			offset = __mem_to_opcode_arm(*(u32 *)loc);
+			offset = (offset & 0x00ffffff) << 2;
 			if (offset & 0x02000000)
 				offset -= 0x04000000;
 
@@ -111,9 +114,10 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
 			}
 
 			offset >>= 2;
+			offset &= 0x00ffffff;
 
-			*(u32 *)loc &= 0xff000000;
-			*(u32 *)loc |= offset & 0x00ffffff;
+			*(u32 *)loc &= __opcode_to_mem_arm(0xff000000);
+			*(u32 *)loc |= __opcode_to_mem_arm(offset);
 			break;
 
 	       case R_ARM_V4BX:
@@ -121,8 +125,8 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
 			* other bits to re-code instruction as
 			* MOV PC,Rm.
 			*/
-		       *(u32 *)loc &= 0xf000000f;
-		       *(u32 *)loc |= 0x01a0f000;
+		       *(u32 *)loc &= __opcode_to_mem_arm(0xf000000f);
+		       *(u32 *)loc |= __opcode_to_mem_arm(0x01a0f000);
 		       break;
 
 		case R_ARM_PREL31:
@@ -132,7 +136,7 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
 
 		case R_ARM_MOVW_ABS_NC:
 		case R_ARM_MOVT_ABS:
-			offset = *(u32 *)loc;
+			offset = tmp = __mem_to_opcode_arm(*(u32 *)loc);
 			offset = ((offset & 0xf0000) >> 4) | (offset & 0xfff);
 			offset = (offset ^ 0x8000) - 0x8000;
 
@@ -140,16 +144,18 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
 			if (ELF32_R_TYPE(rel->r_info) == R_ARM_MOVT_ABS)
 				offset >>= 16;
 
-			*(u32 *)loc &= 0xfff0f000;
-			*(u32 *)loc |= ((offset & 0xf000) << 4) |
-					(offset & 0x0fff);
+			tmp &= 0xfff0f000;
+			tmp |= ((offset & 0xf000) << 4) |
+				(offset & 0x0fff);
+
+			*(u32 *)loc = __opcode_to_mem_arm(tmp);
 			break;
 
 #ifdef CONFIG_THUMB2_KERNEL
 		case R_ARM_THM_CALL:
 		case R_ARM_THM_JUMP24:
-			upper = *(u16 *)loc;
-			lower = *(u16 *)(loc + 2);
+			upper = __mem_to_opcode_thumb16(*(u16 *)loc);
+			lower = __mem_to_opcode_thumb16(*(u16 *)(loc + 2));
 
 			/*
 			 * 25 bit signed address range (Thumb-2 BL and B.W
@@ -198,17 +204,20 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
 			sign = (offset >> 24) & 1;
 			j1 = sign ^ (~(offset >> 23) & 1);
 			j2 = sign ^ (~(offset >> 22) & 1);
-			*(u16 *)loc = (u16)((upper & 0xf800) | (sign << 10) |
+			upper = (u16)((upper & 0xf800) | (sign << 10) |
 					    ((offset >> 12) & 0x03ff));
-			*(u16 *)(loc + 2) = (u16)((lower & 0xd000) |
-						  (j1 << 13) | (j2 << 11) |
-						  ((offset >> 1) & 0x07ff));
+			lower = (u16)((lower & 0xd000) |
+				      (j1 << 13) | (j2 << 11) |
+				      ((offset >> 1) & 0x07ff));
+
+			*(u16 *)loc = __opcode_to_mem_thumb16(upper);
+			*(u16 *)(loc + 2) = __opcode_to_mem_thumb16(lower);
 			break;
 
 		case R_ARM_THM_MOVW_ABS_NC:
 		case R_ARM_THM_MOVT_ABS:
-			upper = *(u16 *)loc;
-			lower = *(u16 *)(loc + 2);
+			upper = __mem_to_opcode_thumb16(*(u16 *)loc);
+			lower = __mem_to_opcode_thumb16(*(u16 *)(loc + 2));
 
 			/*
 			 * MOVT/MOVW instructions encoding in Thumb-2:
@@ -229,12 +238,14 @@ apply_relocate(Elf32_Shdr *sechdrs, const char *strtab, unsigned int symindex,
 			if (ELF32_R_TYPE(rel->r_info) == R_ARM_THM_MOVT_ABS)
 				offset >>= 16;
 
-			*(u16 *)loc = (u16)((upper & 0xfbf0) |
-					    ((offset & 0xf000) >> 12) |
-					    ((offset & 0x0800) >> 1));
-			*(u16 *)(loc + 2) = (u16)((lower & 0x8f00) |
-						  ((offset & 0x0700) << 4) |
-						  (offset & 0x00ff));
+			upper = (u16)((upper & 0xfbf0) |
+				      ((offset & 0xf000) >> 12) |
+				      ((offset & 0x0800) >> 1));
+			lower = (u16)((lower & 0x8f00) |
+				      ((offset & 0x0700) << 4) |
+				      (offset & 0x00ff));
+			*(u16 *)loc = __opcode_to_mem_thumb16(upper);
+			*(u16 *)(loc + 2) = __opcode_to_mem_thumb16(lower);
 			break;
 #endif
 
-- 
cgit 


From 0ab89d0bf8054c3146ec06df357946bb87f36729 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben.dooks@codethink.co.uk>
Date: Mon, 22 Jul 2013 16:32:19 +0100
Subject: ARM: set --be8 when linking modules

To avoid having to make every text section swap the instruction order
of all instructions, make sure modules are built also built with --be8
(as is the current kernel final link).

If we do not do this, we would end up having to swap all instructions
when loading a module, instead of just the instructions that we are
applying ELF relocations to.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
---
 arch/arm/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index a37a50f575a2..00696973d88d 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -16,6 +16,7 @@ LDFLAGS		:=
 LDFLAGS_vmlinux	:=-p --no-undefined -X
 ifeq ($(CONFIG_CPU_ENDIAN_BE8),y)
 LDFLAGS_vmlinux	+= --be8
+LDFLAGS_MODULE	+= --be8
 endif
 
 OBJCOPYFLAGS	:=-O binary -R .comment -S
-- 
cgit 


From bfdef3b32d2f36bf137c039de9a545cdfcfbafe2 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben.dooks@codethink.co.uk>
Date: Wed, 24 Jul 2013 16:09:57 +0100
Subject: ARM: hardware: fix endian-ness in <hardware/coresight.h>

The <hardware/coresight.h> needs to take into account the endian-ness
of the processor when reading and writing data, so change to using
the readl/writel relaxed variants from the raw ones.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
---
 arch/arm/include/asm/hardware/coresight.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/include/asm/hardware/coresight.h b/arch/arm/include/asm/hardware/coresight.h
index 0cf7a6b842ff..ad774f37c47c 100644
--- a/arch/arm/include/asm/hardware/coresight.h
+++ b/arch/arm/include/asm/hardware/coresight.h
@@ -24,8 +24,8 @@
 #define TRACER_TIMEOUT 10000
 
 #define etm_writel(t, v, x) \
-	(__raw_writel((v), (t)->etm_regs + (x)))
-#define etm_readl(t, x) (__raw_readl((t)->etm_regs + (x)))
+	(writel_relaxed((v), (t)->etm_regs + (x)))
+#define etm_readl(t, x) (readl_relaxed((t)->etm_regs + (x)))
 
 /* CoreSight Management Registers */
 #define CSMR_LOCKACCESS 0xfb0
@@ -142,8 +142,8 @@
 #define ETBFF_TRIGFL		BIT(10)
 
 #define etb_writel(t, v, x) \
-	(__raw_writel((v), (t)->etb_regs + (x)))
-#define etb_readl(t, x) (__raw_readl((t)->etb_regs + (x)))
+	(writel_relaxed((v), (t)->etb_regs + (x)))
+#define etb_readl(t, x) (readl_relaxed((t)->etb_regs + (x)))
 
 #define etm_lock(t) do { etm_writel((t), 0, CSMR_LOCKACCESS); } while (0)
 #define etm_unlock(t) \
-- 
cgit 


From 3460743e025addc1ecbd496db2231181a2431774 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben.dooks@codethink.co.uk>
Date: Wed, 24 Jul 2013 15:44:56 +0100
Subject: ARM: net: fix arm instruction endian-ness in bpf_jit_32.c

Use <asm/opcodes.h> to correctly transform instruction byte ordering
into in-memory ordering.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
---
 arch/arm/net/bpf_jit_32.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c
index f50d223a0bd3..510d923ef6fd 100644
--- a/arch/arm/net/bpf_jit_32.c
+++ b/arch/arm/net/bpf_jit_32.c
@@ -19,6 +19,7 @@
 #include <linux/if_vlan.h>
 #include <asm/cacheflush.h>
 #include <asm/hwcap.h>
+#include <asm/opcodes.h>
 
 #include "bpf_jit_32.h"
 
@@ -113,8 +114,11 @@ static u32 jit_udiv(u32 dividend, u32 divisor)
 
 static inline void _emit(int cond, u32 inst, struct jit_ctx *ctx)
 {
+	inst |= (cond << 28);
+	inst = __opcode_to_mem_arm(inst);
+
 	if (ctx->target != NULL)
-		ctx->target[ctx->idx] = inst | (cond << 28);
+		ctx->target[ctx->idx] = inst;
 
 	ctx->idx++;
 }
-- 
cgit 


From 63328070eff2f4fd730c86966a0dbc976147c39f Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben.dooks@codethink.co.uk>
Date: Thu, 25 Jul 2013 14:38:03 +0100
Subject: ARM: Correct BUG() assembly to ensure it is endian-agnostic

Currently BUG() uses .word or .hword to create the necessary illegal
instructions. However if we are building BE8 then these get swapped
by the linker into different illegal instructions in the text. This
means that the BUG() macro does not get trapped properly.

Change to using <asm/opcodes.h> to provide the necessary ARM instruction
building as we cannot rely on gcc/gas having the `.inst` instructions
which where added to try and resolve this issue (reported by Dave Martin
<Dave.Martin@arm.com>).

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
---
 arch/arm/include/asm/bug.h | 10 ++++++----
 arch/arm/kernel/traps.c    |  8 +++++---
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/arch/arm/include/asm/bug.h b/arch/arm/include/asm/bug.h
index 7af5c6c3653a..b274bde24905 100644
--- a/arch/arm/include/asm/bug.h
+++ b/arch/arm/include/asm/bug.h
@@ -2,6 +2,8 @@
 #define _ASMARM_BUG_H
 
 #include <linux/linkage.h>
+#include <linux/types.h>
+#include <asm/opcodes.h>
 
 #ifdef CONFIG_BUG
 
@@ -12,10 +14,10 @@
  */
 #ifdef CONFIG_THUMB2_KERNEL
 #define BUG_INSTR_VALUE 0xde02
-#define BUG_INSTR_TYPE ".hword "
+#define BUG_INSTR(__value) __inst_thumb16(__value)
 #else
 #define BUG_INSTR_VALUE 0xe7f001f2
-#define BUG_INSTR_TYPE ".word "
+#define BUG_INSTR(__value) __inst_arm(__value)
 #endif
 
 
@@ -33,7 +35,7 @@
 
 #define __BUG(__file, __line, __value)				\
 do {								\
-	asm volatile("1:\t" BUG_INSTR_TYPE #__value "\n"	\
+	asm volatile("1:\t" BUG_INSTR(__value) "\n"  \
 		".pushsection .rodata.str, \"aMS\", %progbits, 1\n" \
 		"2:\t.asciz " #__file "\n" 			\
 		".popsection\n" 				\
@@ -48,7 +50,7 @@ do {								\
 
 #define __BUG(__file, __line, __value)				\
 do {								\
-	asm volatile(BUG_INSTR_TYPE #__value);			\
+	asm volatile(BUG_INSTR(__value) "\n");			\
 	unreachable();						\
 } while (0)
 #endif  /* CONFIG_DEBUG_BUGVERBOSE */
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index caf96da27360..6125f259b7b5 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -342,15 +342,17 @@ void arm_notify_die(const char *str, struct pt_regs *regs,
 int is_valid_bugaddr(unsigned long pc)
 {
 #ifdef CONFIG_THUMB2_KERNEL
-	unsigned short bkpt;
+	u16 bkpt;
+	u16 insn = __opcode_to_mem_thumb16(BUG_INSTR_VALUE);
 #else
-	unsigned long bkpt;
+	u32 bkpt;
+	u32 insn = __opcode_to_mem_arm(BUG_INSTR_VALUE);
 #endif
 
 	if (probe_kernel_address((unsigned *)pc, bkpt))
 		return 0;
 
-	return bkpt == BUG_INSTR_VALUE;
+	return bkpt == insn;
 }
 
 #endif
-- 
cgit 


From 5a8b93fc9457be90adfa10d3df6497393c5e2dc2 Mon Sep 17 00:00:00 2001
From: Ben Dooks <ben.dooks@codethink.co.uk>
Date: Thu, 25 Jul 2013 15:47:40 +0100
Subject: ARM: kdgb: use <asm/opcodes.h> for data to be assembled as intruction

The arch_kgdb_breakpoint() function uses an inline assembly directive
to assemble a specific instruction using .word. This means the linker
will not treat is as an instruction, and therefore incorrectly swap
the endian-ness if running BE8.

As noted, this code means that kgdb is really only usable on arm32
kernels, and should be made dependant on not being a thumb2 kernel
until fixed. However this is not something to be added to this patch.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
---
 arch/arm/include/asm/kgdb.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/kgdb.h b/arch/arm/include/asm/kgdb.h
index 48066ce9ea34..0a9d5dd93294 100644
--- a/arch/arm/include/asm/kgdb.h
+++ b/arch/arm/include/asm/kgdb.h
@@ -11,6 +11,7 @@
 #define __ARM_KGDB_H__
 
 #include <linux/ptrace.h>
+#include <asm/opcodes.h>
 
 /*
  * GDB assumes that we're a user process being debugged, so
@@ -41,7 +42,7 @@
 
 static inline void arch_kgdb_breakpoint(void)
 {
-	asm(".word 0xe7ffdeff");
+	asm(__inst_arm(0xe7ffdeff));
 }
 
 extern void kgdb_handle_bus_error(void);
-- 
cgit 


From 2245f92498b216b50e744423bde17626287409d8 Mon Sep 17 00:00:00 2001
From: Victor Kamensky <victor.kamensky@linaro.org>
Date: Fri, 26 Jul 2013 09:28:53 -0700
Subject: ARM: atomic64: fix endian-ness in atomic.h

Fix inline asm for atomic64_xxx functions in arm atomic.h. Instead of
%H operand specifiers code should use %Q for least significant part
of the value, and %R for the most significant part of the value. %H
always returns the higher of the two register numbers, and therefore
it is not endian neutral. %H should be used with ldrexd and strexd
instructions.

Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
---
 arch/arm/include/asm/atomic.h | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
index da1c77d39327..6447a0b7b127 100644
--- a/arch/arm/include/asm/atomic.h
+++ b/arch/arm/include/asm/atomic.h
@@ -301,8 +301,8 @@ static inline void atomic64_add(u64 i, atomic64_t *v)
 
 	__asm__ __volatile__("@ atomic64_add\n"
 "1:	ldrexd	%0, %H0, [%3]\n"
-"	adds	%0, %0, %4\n"
-"	adc	%H0, %H0, %H4\n"
+"	adds	%Q0, %Q0, %Q4\n"
+"	adc	%R0, %R0, %R4\n"
 "	strexd	%1, %0, %H0, [%3]\n"
 "	teq	%1, #0\n"
 "	bne	1b"
@@ -320,8 +320,8 @@ static inline u64 atomic64_add_return(u64 i, atomic64_t *v)
 
 	__asm__ __volatile__("@ atomic64_add_return\n"
 "1:	ldrexd	%0, %H0, [%3]\n"
-"	adds	%0, %0, %4\n"
-"	adc	%H0, %H0, %H4\n"
+"	adds	%Q0, %Q0, %Q4\n"
+"	adc	%R0, %R0, %R4\n"
 "	strexd	%1, %0, %H0, [%3]\n"
 "	teq	%1, #0\n"
 "	bne	1b"
@@ -341,8 +341,8 @@ static inline void atomic64_sub(u64 i, atomic64_t *v)
 
 	__asm__ __volatile__("@ atomic64_sub\n"
 "1:	ldrexd	%0, %H0, [%3]\n"
-"	subs	%0, %0, %4\n"
-"	sbc	%H0, %H0, %H4\n"
+"	subs	%Q0, %Q0, %Q4\n"
+"	sbc	%R0, %R0, %R4\n"
 "	strexd	%1, %0, %H0, [%3]\n"
 "	teq	%1, #0\n"
 "	bne	1b"
@@ -360,8 +360,8 @@ static inline u64 atomic64_sub_return(u64 i, atomic64_t *v)
 
 	__asm__ __volatile__("@ atomic64_sub_return\n"
 "1:	ldrexd	%0, %H0, [%3]\n"
-"	subs	%0, %0, %4\n"
-"	sbc	%H0, %H0, %H4\n"
+"	subs	%Q0, %Q0, %Q4\n"
+"	sbc	%R0, %R0, %R4\n"
 "	strexd	%1, %0, %H0, [%3]\n"
 "	teq	%1, #0\n"
 "	bne	1b"
@@ -428,9 +428,9 @@ static inline u64 atomic64_dec_if_positive(atomic64_t *v)
 
 	__asm__ __volatile__("@ atomic64_dec_if_positive\n"
 "1:	ldrexd	%0, %H0, [%3]\n"
-"	subs	%0, %0, #1\n"
-"	sbc	%H0, %H0, #0\n"
-"	teq	%H0, #0\n"
+"	subs	%Q0, %Q0, #1\n"
+"	sbc	%R0, %R0, #0\n"
+"	teq	%R0, #0\n"
 "	bmi	2f\n"
 "	strexd	%1, %0, %H0, [%3]\n"
 "	teq	%1, #0\n"
@@ -459,8 +459,8 @@ static inline int atomic64_add_unless(atomic64_t *v, u64 a, u64 u)
 "	teqeq	%H0, %H5\n"
 "	moveq	%1, #0\n"
 "	beq	2f\n"
-"	adds	%0, %0, %6\n"
-"	adc	%H0, %H0, %H6\n"
+"	adds	%Q0, %Q0, %Q6\n"
+"	adc	%R0, %R0, %R6\n"
 "	strexd	%2, %0, %H0, [%4]\n"
 "	teq	%2, #0\n"
 "	bne	1b\n"
-- 
cgit 


From 574e2b5111e13827da501771b27d92e6e3f2e3d7 Mon Sep 17 00:00:00 2001
From: Victor Kamensky <victor.kamensky@linaro.org>
Date: Tue, 27 Aug 2013 22:41:57 -0700
Subject: ARM: signal: sigreturn_codes should be endian neutral to work in BE8

In case of BE8 kernel data is in BE order whereas code stays in LE
order. Move sigreturn_codes to separate .S file and use proper
assembler mnemonics for these code snippets. In this case compiler
will take care of proper instructions byteswaps for BE8 case.
Change assumes that sufficiently Thumb-capable tools are used to
build kernel.

Problem was discovered during ltp testing of BE system: all rt_sig*
tests failed. Tested against the same tests in both BE and LE modes.

Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
---
 arch/arm/kernel/Makefile          |  3 +-
 arch/arm/kernel/signal.c          | 24 +-----------
 arch/arm/kernel/sigreturn_codes.S | 80 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 83 insertions(+), 24 deletions(-)
 create mode 100644 arch/arm/kernel/sigreturn_codes.S

diff --git a/arch/arm/kernel/Makefile b/arch/arm/kernel/Makefile
index 5140df5f23aa..39c9834461b4 100644
--- a/arch/arm/kernel/Makefile
+++ b/arch/arm/kernel/Makefile
@@ -17,7 +17,8 @@ CFLAGS_REMOVE_return_address.o = -pg
 
 obj-y		:= elf.o entry-common.o irq.o opcodes.o \
 		   process.o ptrace.o return_address.o \
-		   setup.o signal.o stacktrace.o sys_arm.o time.o traps.o
+		   setup.o signal.o sigreturn_codes.o \
+		   stacktrace.o sys_arm.o time.o traps.o
 
 obj-$(CONFIG_ATAGS)		+= atags_parse.o
 obj-$(CONFIG_ATAGS_PROC)	+= atags_proc.o
diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index ab3304225272..64845fc4152a 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -21,29 +21,7 @@
 #include <asm/unistd.h>
 #include <asm/vfp.h>
 
-/*
- * For ARM syscalls, we encode the syscall number into the instruction.
- */
-#define SWI_SYS_SIGRETURN	(0xef000000|(__NR_sigreturn)|(__NR_OABI_SYSCALL_BASE))
-#define SWI_SYS_RT_SIGRETURN	(0xef000000|(__NR_rt_sigreturn)|(__NR_OABI_SYSCALL_BASE))
-
-/*
- * With EABI, the syscall number has to be loaded into r7.
- */
-#define MOV_R7_NR_SIGRETURN	(0xe3a07000 | (__NR_sigreturn - __NR_SYSCALL_BASE))
-#define MOV_R7_NR_RT_SIGRETURN	(0xe3a07000 | (__NR_rt_sigreturn - __NR_SYSCALL_BASE))
-
-/*
- * For Thumb syscalls, we pass the syscall number via r7.  We therefore
- * need two 16-bit instructions.
- */
-#define SWI_THUMB_SIGRETURN	(0xdf00 << 16 | 0x2700 | (__NR_sigreturn - __NR_SYSCALL_BASE))
-#define SWI_THUMB_RT_SIGRETURN	(0xdf00 << 16 | 0x2700 | (__NR_rt_sigreturn - __NR_SYSCALL_BASE))
-
-static const unsigned long sigreturn_codes[7] = {
-	MOV_R7_NR_SIGRETURN,    SWI_SYS_SIGRETURN,    SWI_THUMB_SIGRETURN,
-	MOV_R7_NR_RT_SIGRETURN, SWI_SYS_RT_SIGRETURN, SWI_THUMB_RT_SIGRETURN,
-};
+extern const unsigned long sigreturn_codes[7];
 
 static unsigned long signal_return_offset;
 
diff --git a/arch/arm/kernel/sigreturn_codes.S b/arch/arm/kernel/sigreturn_codes.S
new file mode 100644
index 000000000000..3c5d0f2170fd
--- /dev/null
+++ b/arch/arm/kernel/sigreturn_codes.S
@@ -0,0 +1,80 @@
+/*
+ * sigreturn_codes.S - code sinpets for sigreturn syscalls
+ *
+ * Created by:	Victor Kamensky, 2013-08-13
+ * Copyright:	(C) 2013  Linaro Limited
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <asm/unistd.h>
+
+/*
+ * For ARM syscalls, we encode the syscall number into the instruction.
+ * With EABI, the syscall number has to be loaded into r7. As result
+ * ARM syscall sequence snippet will have move and svc in .arm encoding
+ *
+ * For Thumb syscalls, we pass the syscall number via r7.  We therefore
+ * need two 16-bit instructions in .thumb encoding
+ *
+ * Please note sigreturn_codes code are not executed in place. Instead
+ * they just copied by kernel into appropriate places. Code inside of
+ * arch/arm/kernel/signal.c is very sensitive to layout of these code
+ * snippets.
+ */
+
+#if __LINUX_ARM_ARCH__ <= 4
+	/*
+	 * Note we manually set minimally required arch that supports
+	 * required thumb opcodes for early arch versions. It is OK
+	 * for this file to be used in combination with other
+	 * lower arch variants, since these code snippets are only
+	 * used as input data.
+	 */
+	.arch armv4t
+#endif
+
+	.section .rodata
+	.global sigreturn_codes
+	.type	sigreturn_codes, #object
+
+	.arm
+
+sigreturn_codes:
+
+	/* ARM sigreturn syscall code snippet */
+	mov	r7, #(__NR_sigreturn - __NR_SYSCALL_BASE)
+	swi	#(__NR_sigreturn)|(__NR_OABI_SYSCALL_BASE)
+
+	/* Thumb sigreturn syscall code snippet */
+	.thumb
+	movs	r7, #(__NR_sigreturn - __NR_SYSCALL_BASE)
+	swi	#0
+
+	/* ARM sigreturn_rt syscall code snippet */
+	.arm
+	mov	r7, #(__NR_rt_sigreturn - __NR_SYSCALL_BASE)
+	swi	#(__NR_rt_sigreturn)|(__NR_OABI_SYSCALL_BASE)
+
+	/* Thumb sigreturn_rt syscall code snippet */
+	.thumb
+	movs	r7, #(__NR_rt_sigreturn - __NR_SYSCALL_BASE)
+	swi	#0
+
+	/*
+	 * Note on addtional space: setup_return in signal.c
+	 * algorithm uses two words copy regardless whether
+	 * it is thumb case or not, so we need additional
+	 * word after real last entry.
+	 */
+	.arm
+	.space	4
+
+	.size	sigreturn_codes, . - sigreturn_codes
-- 
cgit 


From 519ceb9fd10cd7e836d0aa97b2068cc9e97f463b Mon Sep 17 00:00:00 2001
From: Victor Kamensky <victor.kamensky@linaro.org>
Date: Mon, 7 Oct 2013 21:37:19 -0700
Subject: ARM: mcpm: fix big endian issue in mcpm startup code

In big endian mode mcpm_entry_point is first function
that called on secondaries CPU. First it should switch
CPU into big endian code.

[ben.dooks@codethink.co.uk: merge fix patch from Victor into this]
Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
---
 arch/arm/common/mcpm_head.S | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/common/mcpm_head.S b/arch/arm/common/mcpm_head.S
index 39c96df3477a..4f88f5e655be 100644
--- a/arch/arm/common/mcpm_head.S
+++ b/arch/arm/common/mcpm_head.S
@@ -15,6 +15,7 @@
 
 #include <linux/linkage.h>
 #include <asm/mcpm.h>
+#include <asm/assembler.h>
 
 #include "vlock.h"
 
@@ -47,6 +48,7 @@
 
 ENTRY(mcpm_entry_point)
 
+ ARM_BE8(setend        be)
  THUMB(	adr	r12, BSYM(1f)	)
  THUMB(	bx	r12		)
  THUMB(	.thumb			)
-- 
cgit 


From a1af3474487cc3b8731b990dceac6b6aad7f3ed8 Mon Sep 17 00:00:00 2001
From: Victor Kamensky <victor.kamensky@linaro.org>
Date: Mon, 7 Oct 2013 08:48:23 -0700
Subject: ARM: tlb: ASID macro should give 32bit result for BE correct
 operation

In order for ASID macro to be used as expression passed to
inline asm as 'r' operand it needs to give 32 bit unsigned result,
not unsigned 64bit expression.

Otherwise when 64bit ASID is passed to inline assembler statement
as 'r' operand (32bit) compiler behavior is not well specified.
For example when __flush_tlb_mm function compiled in big endian
case, and ASID is passed to tlb_op macro directly, 0 will be passed
as 'mcr	15, 0, r4, cr8, cr3, {2}' argument in r4, unless ASID
macro changed to produce 32 bit result.

Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
---
 arch/arm/include/asm/mmu.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/mmu.h b/arch/arm/include/asm/mmu.h
index 6f18da09668b..64fd15159b7d 100644
--- a/arch/arm/include/asm/mmu.h
+++ b/arch/arm/include/asm/mmu.h
@@ -16,7 +16,7 @@ typedef struct {
 #ifdef CONFIG_CPU_HAS_ASID
 #define ASID_BITS	8
 #define ASID_MASK	((~0ULL) << ASID_BITS)
-#define ASID(mm)	((mm)->context.id.counter & ~ASID_MASK)
+#define ASID(mm)	((unsigned int)((mm)->context.id.counter & ~ASID_MASK))
 #else
 #define ASID(mm)	(0)
 #endif
-- 
cgit 


From fdb07aee0b2b9d7d1893c97f5ce79ec355caaf1f Mon Sep 17 00:00:00 2001
From: Victor Kamensky <victor.kamensky@linaro.org>
Date: Tue, 15 Oct 2013 21:50:34 -0700
Subject: ARM: cci driver need big endian fixes in asm code

cci_enable_port_for_self written in asm and it works with h/w
registers that are in little endian format. When run in big
endian mode it needs byteswaped constants before/after it
writes/reads to/from such registers

Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
---
 drivers/bus/arm-cci.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c
index 200926699778..2e6c275322f1 100644
--- a/drivers/bus/arm-cci.c
+++ b/drivers/bus/arm-cci.c
@@ -280,7 +280,7 @@ asmlinkage void __naked cci_enable_port_for_self(void)
 
 	/* Enable the CCI port */
 "	ldr	r0, [r0, %[offsetof_port_phys]] \n"
-"	mov	r3, #"__stringify(CCI_ENABLE_REQ)" \n"
+"	mov	r3, %[cci_enable_req]\n"		   
 "	str	r3, [r0, #"__stringify(CCI_PORT_CTRL)"] \n"
 
 	/* poll the status reg for completion */
@@ -288,7 +288,7 @@ asmlinkage void __naked cci_enable_port_for_self(void)
 "	ldr	r0, [r1] \n"
 "	ldr	r0, [r0, r1]		@ cci_ctrl_base \n"
 "4:	ldr	r1, [r0, #"__stringify(CCI_CTRL_STATUS)"] \n"
-"	tst	r1, #1 \n"
+"	tst	r1, %[cci_control_status_bits] \n"			
 "	bne	4b \n"
 
 "	mov	r0, #0 \n"
@@ -301,6 +301,8 @@ asmlinkage void __naked cci_enable_port_for_self(void)
 "7:	.word	cci_ctrl_phys - . \n"
 	: :
 	[sizeof_cpu_port] "i" (sizeof(cpu_port)),
+	[cci_enable_req] "i" cpu_to_le32(CCI_ENABLE_REQ),
+	[cci_control_status_bits] "i" cpu_to_le32(1),
 #ifndef __ARMEB__
 	[offsetof_cpu_port_mpidr_lsb] "i" (offsetof(struct cpu_port, mpidr)),
 #else
-- 
cgit 


From 6197c34425c3d9a622d3a7031c91104909224a67 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 19 Oct 2013 14:09:27 +0100
Subject: ASoC: cirrus: Enable compile test builds

The core support for ep93xx (currently only the DMA driver) does not
depend on the architecture at all and everything else has more strict
dependencies so enable compile test builds for improved build coverage.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/cirrus/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/cirrus/Kconfig b/sound/soc/cirrus/Kconfig
index 2c20f01e1f7e..06f938deda15 100644
--- a/sound/soc/cirrus/Kconfig
+++ b/sound/soc/cirrus/Kconfig
@@ -1,6 +1,6 @@
 config SND_EP93XX_SOC
 	tristate "SoC Audio support for the Cirrus Logic EP93xx series"
-	depends on ARCH_EP93XX && SND_SOC
+	depends on (ARCH_EP93XX || COMPILE_TEST) && SND_SOC
 	select SND_SOC_GENERIC_DMAENGINE_PCM
 	help
 	  Say Y or M if you want to add support for codecs attached to
-- 
cgit 


From e58f301ec969430cdafd7fa872660458f4939507 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 16 Oct 2013 17:26:22 +0100
Subject: ASoC: rt5640: Power down LDO while suspended

If we have control over the LDO then disable it during suspend; the device
is already being put into reset so will be non-functional over suspend
anyway and this will save a small amount of power.

Signed-off-by: Mark Brown <broonie@linaro.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
---
 sound/soc/codecs/rt5640.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/sound/soc/codecs/rt5640.c b/sound/soc/codecs/rt5640.c
index 641eeeb00c5c..b0cde92be7eb 100644
--- a/sound/soc/codecs/rt5640.c
+++ b/sound/soc/codecs/rt5640.c
@@ -1979,12 +1979,20 @@ static int rt5640_suspend(struct snd_soc_codec *codec)
 	rt5640_reset(codec);
 	regcache_cache_only(rt5640->regmap, true);
 	regcache_mark_dirty(rt5640->regmap);
+	if (gpio_is_valid(rt5640->pdata.ldo1_en))
+		gpio_set_value_cansleep(rt5640->pdata.ldo1_en, 0);
 
 	return 0;
 }
 
 static int rt5640_resume(struct snd_soc_codec *codec)
 {
+	struct rt5640_priv *rt5640 = snd_soc_codec_get_drvdata(codec);
+
+	if (gpio_is_valid(rt5640->pdata.ldo1_en)) {
+		gpio_set_value_cansleep(rt5640->pdata.ldo1_en, 1);
+		msleep(400);
+	}
 	rt5640_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
 	return 0;
-- 
cgit 


From ebce31140c2ddfda005e88957ac1ee1eacaa8dc5 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 16 Oct 2013 17:30:44 +0100
Subject: ASoC: rt5640: Don't go to standby on resume

There is no need for the CODEC to go to standby on resume since the core will
power it up as needed and in any case it is an idle_bias_off CODEC so would
normally sit with bias off while idle.

Signed-off-by: Mark Brown <broonie@linaro.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
---
 sound/soc/codecs/rt5640.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sound/soc/codecs/rt5640.c b/sound/soc/codecs/rt5640.c
index b0cde92be7eb..4d041d376f31 100644
--- a/sound/soc/codecs/rt5640.c
+++ b/sound/soc/codecs/rt5640.c
@@ -1993,7 +1993,6 @@ static int rt5640_resume(struct snd_soc_codec *codec)
 		gpio_set_value_cansleep(rt5640->pdata.ldo1_en, 1);
 		msleep(400);
 	}
-	rt5640_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
 
 	return 0;
 }
-- 
cgit 


From c0de42bf595238e9dd593405ebc2992cc8470732 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 8 Oct 2013 15:07:59 +0200
Subject: ASoC: dmaengine-pcm: Add support for querying DMA capabilities

Currently each platform making use the the generic dmaengine PCM driver still
needs to provide a custom snd_pcm_hardware struct which specifies the
capabilities of the DMA controller, e.g. the maximum period size that can be
supported. This patch adds code which uses the newly introduced
dma_get_slave_caps() API to query this information from the dmaengine driver.
The new code path will only be taken if the 'pcm_hardware' field of the
snd_dmaengine_pcm_config struct is NULL.

The patch also introduces a new 'fifo_size' field to the
snd_dmaengine_dai_dma_data struct which is used to initialize the
snd_pcm_hardware 'fifo_size' field and needs to be set by the DAI driver.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/sound/dmaengine_pcm.h         |  2 ++
 sound/soc/soc-generic-dmaengine-pcm.c | 55 ++++++++++++++++++++++++++++-------
 2 files changed, 47 insertions(+), 10 deletions(-)

diff --git a/include/sound/dmaengine_pcm.h b/include/sound/dmaengine_pcm.h
index f11c35cd5532..83b2c3e95a1a 100644
--- a/include/sound/dmaengine_pcm.h
+++ b/include/sound/dmaengine_pcm.h
@@ -61,6 +61,7 @@ struct dma_chan *snd_dmaengine_pcm_get_chan(struct snd_pcm_substream *substream)
  * @slave_id: Slave requester id for the DMA channel.
  * @filter_data: Custom DMA channel filter data, this will usually be used when
  * requesting the DMA channel.
+ * @fifo_size: FIFO size of the DAI controller in bytes
  */
 struct snd_dmaengine_dai_dma_data {
 	dma_addr_t addr;
@@ -68,6 +69,7 @@ struct snd_dmaengine_dai_dma_data {
 	u32 maxburst;
 	unsigned int slave_id;
 	void *filter_data;
+	unsigned int fifo_size;
 };
 
 void snd_dmaengine_pcm_set_config_from_dai_data(
diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c
index e29ec3cd84b1..c39e19e84c8a 100644
--- a/sound/soc/soc-generic-dmaengine-pcm.c
+++ b/sound/soc/soc-generic-dmaengine-pcm.c
@@ -36,6 +36,15 @@ static struct dmaengine_pcm *soc_platform_to_pcm(struct snd_soc_platform *p)
 	return container_of(p, struct dmaengine_pcm, platform);
 }
 
+static struct device *dmaengine_dma_dev(struct dmaengine_pcm *pcm,
+	struct snd_pcm_substream *substream)
+{
+	if (!pcm->chan[substream->stream])
+		return NULL;
+
+	return pcm->chan[substream->stream]->device->dev;
+}
+
 /**
  * snd_dmaengine_pcm_prepare_slave_config() - Generic prepare_slave_config callback
  * @substream: PCM substream
@@ -92,28 +101,54 @@ static int dmaengine_pcm_hw_params(struct snd_pcm_substream *substream,
 	return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
 }
 
-static int dmaengine_pcm_open(struct snd_pcm_substream *substream)
+static int dmaengine_pcm_set_runtime_hwparams(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct dmaengine_pcm *pcm = soc_platform_to_pcm(rtd->platform);
+	struct device *dma_dev = dmaengine_dma_dev(pcm, substream);
 	struct dma_chan *chan = pcm->chan[substream->stream];
+	struct snd_dmaengine_dai_dma_data *dma_data;
+	struct dma_slave_caps dma_caps;
+	struct snd_pcm_hardware hw;
 	int ret;
 
-	ret = snd_soc_set_runtime_hwparams(substream,
+	if (pcm->config->pcm_hardware)
+		return snd_soc_set_runtime_hwparams(substream,
 				pcm->config->pcm_hardware);
-	if (ret)
-		return ret;
 
-	return snd_dmaengine_pcm_open(substream, chan);
+	dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
+
+	memset(&hw, 0, sizeof(hw));
+	hw.info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID |
+			SNDRV_PCM_INFO_INTERLEAVED;
+	hw.periods_min = 2;
+	hw.periods_max = UINT_MAX;
+	hw.period_bytes_min = 256;
+	hw.period_bytes_max = dma_get_max_seg_size(dma_dev);
+	hw.buffer_bytes_max = SIZE_MAX;
+	hw.fifo_size = dma_data->fifo_size;
+
+	ret = dma_get_slave_caps(chan, &dma_caps);
+	if (ret == 0) {
+		if (dma_caps.cmd_pause)
+			hw.info |= SNDRV_PCM_INFO_PAUSE | SNDRV_PCM_INFO_RESUME;
+	}
+
+	return snd_soc_set_runtime_hwparams(substream, &hw);
 }
 
-static struct device *dmaengine_dma_dev(struct dmaengine_pcm *pcm,
-	struct snd_pcm_substream *substream)
+static int dmaengine_pcm_open(struct snd_pcm_substream *substream)
 {
-	if (!pcm->chan[substream->stream])
-		return NULL;
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct dmaengine_pcm *pcm = soc_platform_to_pcm(rtd->platform);
+	struct dma_chan *chan = pcm->chan[substream->stream];
+	int ret;
 
-	return pcm->chan[substream->stream]->device->dev;
+	ret = dmaengine_pcm_set_runtime_hwparams(substream);
+	if (ret)
+		return ret;
+
+	return snd_dmaengine_pcm_open(substream, chan);
 }
 
 static void dmaengine_pcm_free(struct snd_pcm *pcm)
-- 
cgit 


From fa654e085300e9c222ef931bc0702a9df2542666 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Tue, 8 Oct 2013 15:08:00 +0200
Subject: ASoC: dmaengine-pcm: Provide default config

This patch adds some default settings for the generic dmaengine PCM driver for
the case that no config has been supplied. The following defaults are used:
	* Use snd_dmaengine_pcm_prepare_slave_config for preparing the DMA slave
	  config.
	* 512kB for the prealloc buffer size. This value has been chosen based on
	  'feels about right' and is not backed up by any scientific facts. We
	  may need to come up with something smarter in the future but it should
	  work fine for now.

With this infrastructure in place we can finally write DAI drivers which are
independent of the DMA controller they are connected to. This is e.g. useful if
the DAI IP core is reused across different SoCs, but the SoCs uses different DMA
controllers.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/soc-generic-dmaengine-pcm.c | 30 ++++++++++++++++++++++++------
 1 file changed, 24 insertions(+), 6 deletions(-)

diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c
index c39e19e84c8a..99f9495c1c40 100644
--- a/sound/soc/soc-generic-dmaengine-pcm.c
+++ b/sound/soc/soc-generic-dmaengine-pcm.c
@@ -84,12 +84,19 @@ static int dmaengine_pcm_hw_params(struct snd_pcm_substream *substream,
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct dmaengine_pcm *pcm = soc_platform_to_pcm(rtd->platform);
 	struct dma_chan *chan = snd_dmaengine_pcm_get_chan(substream);
+	int (*prepare_slave_config)(struct snd_pcm_substream *substream,
+			struct snd_pcm_hw_params *params,
+			struct dma_slave_config *slave_config);
 	struct dma_slave_config slave_config;
 	int ret;
 
-	if (pcm->config->prepare_slave_config) {
-		ret = pcm->config->prepare_slave_config(substream, params,
-				&slave_config);
+	if (!pcm->config)
+		prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config;
+	else
+		prepare_slave_config = pcm->config->prepare_slave_config;
+
+	if (prepare_slave_config) {
+		ret = prepare_slave_config(substream, params, &slave_config);
 		if (ret)
 			return ret;
 
@@ -112,7 +119,7 @@ static int dmaengine_pcm_set_runtime_hwparams(struct snd_pcm_substream *substrea
 	struct snd_pcm_hardware hw;
 	int ret;
 
-	if (pcm->config->pcm_hardware)
+	if (pcm->config && pcm->config->pcm_hardware)
 		return snd_soc_set_runtime_hwparams(substream,
 				pcm->config->pcm_hardware);
 
@@ -177,9 +184,20 @@ static int dmaengine_pcm_new(struct snd_soc_pcm_runtime *rtd)
 	struct dmaengine_pcm *pcm = soc_platform_to_pcm(rtd->platform);
 	const struct snd_dmaengine_pcm_config *config = pcm->config;
 	struct snd_pcm_substream *substream;
+	size_t prealloc_buffer_size;
+	size_t max_buffer_size;
 	unsigned int i;
 	int ret;
 
+	if (config && config->prealloc_buffer_size) {
+		prealloc_buffer_size = config->prealloc_buffer_size;
+		max_buffer_size = config->pcm_hardware->buffer_bytes_max;
+	} else {
+		prealloc_buffer_size = 512 * 1024;
+		max_buffer_size = SIZE_MAX;
+	}
+
+
 	for (i = SNDRV_PCM_STREAM_PLAYBACK; i <= SNDRV_PCM_STREAM_CAPTURE; i++) {
 		substream = rtd->pcm->streams[i].substream;
 		if (!substream)
@@ -200,8 +218,8 @@ static int dmaengine_pcm_new(struct snd_soc_pcm_runtime *rtd)
 		ret = snd_pcm_lib_preallocate_pages(substream,
 				SNDRV_DMA_TYPE_DEV,
 				dmaengine_dma_dev(pcm, substream),
-				config->prealloc_buffer_size,
-				config->pcm_hardware->buffer_bytes_max);
+				prealloc_buffer_size,
+				max_buffer_size);
 		if (ret)
 			goto err_free;
 	}
-- 
cgit 


From 5252bbfde59da4349d75a73c3be62c620d20ac6b Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Thu, 17 Oct 2013 23:03:38 -0700
Subject: staging/lustre/lnet/selftest: Fix trailing statements in brw_test.c

Fix trailing statement errors generated by checkpatch.pl in
brw_test.c to meet kernel coding standards.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/selftest/brw_test.c | 27 ++++++++++++++++---------
 1 file changed, 18 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c
index ef5064e0055f..4b8daebdd37d 100644
--- a/drivers/staging/lustre/lnet/selftest/brw_test.c
+++ b/drivers/staging/lustre/lnet/selftest/brw_test.c
@@ -57,7 +57,8 @@ brw_client_fini (sfw_test_instance_t *tsi)
 
 	list_for_each_entry (tsu, &tsi->tsi_units, tsu_list) {
 		bulk = tsu->tsu_private;
-		if (bulk == NULL) continue;
+		if (bulk == NULL)
+			continue;
 
 		srpc_free_bulk(bulk);
 		tsu->tsu_private = NULL;
@@ -134,11 +135,13 @@ brw_inject_one_error (void)
 {
 	struct timeval tv;
 
-	if (brw_inject_errors <= 0) return 0;
+	if (brw_inject_errors <= 0)
+		return 0;
 
 	do_gettimeofday(&tv);
 
-	if ((tv.tv_usec & 1) == 0) return 0;
+	if ((tv.tv_usec & 1) == 0)
+		return 0;
 
 	return brw_inject_errors--;
 }
@@ -151,7 +154,8 @@ brw_fill_page (struct page *pg, int pattern, __u64 magic)
 
 	LASSERT (addr != NULL);
 
-	if (pattern == LST_BRW_CHECK_NONE) return;
+	if (pattern == LST_BRW_CHECK_NONE)
+		return;
 
 	if (magic == BRW_MAGIC)
 		magic += brw_inject_one_error();
@@ -187,11 +191,13 @@ brw_check_page (struct page *pg, int pattern, __u64 magic)
 
 	if (pattern == LST_BRW_CHECK_SIMPLE) {
 		data = *((__u64 *) addr);
-		if (data != magic) goto bad_data;
+		if (data != magic)
+			goto bad_data;
 
 		addr += PAGE_CACHE_SIZE - BRW_MSIZE;
 		data = *((__u64 *) addr);
-		if (data != magic) goto bad_data;
+		if (data != magic)
+			goto bad_data;
 
 		return 0;
 	}
@@ -199,7 +205,8 @@ brw_check_page (struct page *pg, int pattern, __u64 magic)
 	if (pattern == LST_BRW_CHECK_FULL) {
 		for (i = 0; i < PAGE_CACHE_SIZE / BRW_MSIZE; i++) {
 			data = *(((__u64 *) addr) + i);
-			if (data != magic) goto bad_data;
+			if (data != magic)
+				goto bad_data;
 		}
 
 		return 0;
@@ -336,7 +343,8 @@ brw_client_done_rpc (sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
 		goto out;
 	}
 
-	if (reqst->brw_rw == LST_BRW_WRITE) goto out;
+	if (reqst->brw_rw == LST_BRW_WRITE)
+		goto out;
 
 	if (brw_check_bulk(&rpc->crpc_bulk, reqst->brw_flags, magic) != 0) {
 		CERROR ("Bulk data from %s is corrupted!\n",
@@ -354,7 +362,8 @@ brw_server_rpc_done (srpc_server_rpc_t *rpc)
 {
 	srpc_bulk_t *blk = rpc->srpc_bulk;
 
-	if (blk == NULL) return;
+	if (blk == NULL)
+		return;
 
 	if (rpc->srpc_status != 0)
 		CERROR ("Bulk transfer %s %s has failed: %d\n",
-- 
cgit 


From 5f849bb0e4e3e64e85151efdf8b7d96338156b1f Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Thu, 17 Oct 2013 23:03:48 -0700
Subject: staging/lustre/lnet/selftest: Remove unnecessary spaces in brw_test.c

Remove spaces between function names and open parentheses to
eliminate warnings generated by checkpatch.pl and meet kernel
coding standards.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/selftest/brw_test.c | 64 ++++++++++++-------------
 1 file changed, 32 insertions(+), 32 deletions(-)

diff --git a/drivers/staging/lustre/lnet/selftest/brw_test.c b/drivers/staging/lustre/lnet/selftest/brw_test.c
index 4b8daebdd37d..b7613c828e76 100644
--- a/drivers/staging/lustre/lnet/selftest/brw_test.c
+++ b/drivers/staging/lustre/lnet/selftest/brw_test.c
@@ -48,14 +48,14 @@ CFS_MODULE_PARM(brw_inject_errors, "i", int, 0644,
 		"# data errors to inject randomly, zero by default");
 
 static void
-brw_client_fini (sfw_test_instance_t *tsi)
+brw_client_fini(sfw_test_instance_t *tsi)
 {
 	srpc_bulk_t     *bulk;
 	sfw_test_unit_t *tsu;
 
-	LASSERT (tsi->tsi_is_client);
+	LASSERT(tsi->tsi_is_client);
 
-	list_for_each_entry (tsu, &tsi->tsi_units, tsu_list) {
+	list_for_each_entry(tsu, &tsi->tsi_units, tsu_list) {
 		bulk = tsu->tsu_private;
 		if (bulk == NULL)
 			continue;
@@ -66,7 +66,7 @@ brw_client_fini (sfw_test_instance_t *tsi)
 }
 
 int
-brw_client_init (sfw_test_instance_t *tsi)
+brw_client_init(sfw_test_instance_t *tsi)
 {
 	sfw_session_t	 *sn = tsi->tsi_batch->bat_session;
 	int		  flags;
@@ -131,7 +131,7 @@ brw_client_init (sfw_test_instance_t *tsi)
 #define BRW_MSIZE       sizeof(__u64)
 
 int
-brw_inject_one_error (void)
+brw_inject_one_error(void)
 {
 	struct timeval tv;
 
@@ -147,12 +147,12 @@ brw_inject_one_error (void)
 }
 
 void
-brw_fill_page (struct page *pg, int pattern, __u64 magic)
+brw_fill_page(struct page *pg, int pattern, __u64 magic)
 {
 	char *addr = page_address(pg);
 	int   i;
 
-	LASSERT (addr != NULL);
+	LASSERT(addr != NULL);
 
 	if (pattern == LST_BRW_CHECK_NONE)
 		return;
@@ -173,18 +173,18 @@ brw_fill_page (struct page *pg, int pattern, __u64 magic)
 		return;
 	}
 
-	LBUG ();
+	LBUG();
 	return;
 }
 
 int
-brw_check_page (struct page *pg, int pattern, __u64 magic)
+brw_check_page(struct page *pg, int pattern, __u64 magic)
 {
 	char  *addr = page_address(pg);
 	__u64  data = 0; /* make compiler happy */
 	int    i;
 
-	LASSERT (addr != NULL);
+	LASSERT(addr != NULL);
 
 	if (pattern == LST_BRW_CHECK_NONE)
 		return 0;
@@ -212,16 +212,16 @@ brw_check_page (struct page *pg, int pattern, __u64 magic)
 		return 0;
 	}
 
-	LBUG ();
+	LBUG();
 
 bad_data:
-	CERROR ("Bad data in page %p: "LPX64", "LPX64" expected\n",
+	CERROR("Bad data in page %p: "LPX64", "LPX64" expected\n",
 		pg, data, magic);
 	return 1;
 }
 
 void
-brw_fill_bulk (srpc_bulk_t *bk, int pattern, __u64 magic)
+brw_fill_bulk(srpc_bulk_t *bk, int pattern, __u64 magic)
 {
 	int	 i;
 	struct page *pg;
@@ -233,7 +233,7 @@ brw_fill_bulk (srpc_bulk_t *bk, int pattern, __u64 magic)
 }
 
 int
-brw_check_bulk (srpc_bulk_t *bk, int pattern, __u64 magic)
+brw_check_bulk(srpc_bulk_t *bk, int pattern, __u64 magic)
 {
 	int	 i;
 	struct page *pg;
@@ -241,7 +241,7 @@ brw_check_bulk (srpc_bulk_t *bk, int pattern, __u64 magic)
 	for (i = 0; i < bk->bk_niov; i++) {
 		pg = bk->bk_iovs[i].kiov_page;
 		if (brw_check_page(pg, pattern, magic) != 0) {
-			CERROR ("Bulk page %p (%d/%d) is corrupted!\n",
+			CERROR("Bulk page %p (%d/%d) is corrupted!\n",
 				pg, i, bk->bk_niov);
 			return 1;
 		}
@@ -251,7 +251,7 @@ brw_check_bulk (srpc_bulk_t *bk, int pattern, __u64 magic)
 }
 
 static int
-brw_client_prep_rpc (sfw_test_unit_t *tsu,
+brw_client_prep_rpc(sfw_test_unit_t *tsu,
 		     lnet_process_id_t dest, srpc_client_rpc_t **rpcpp)
 {
 	srpc_bulk_t	 *bulk = tsu->tsu_private;
@@ -309,7 +309,7 @@ brw_client_prep_rpc (sfw_test_unit_t *tsu,
 }
 
 static void
-brw_client_done_rpc (sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
+brw_client_done_rpc(sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
 {
 	__u64		magic = BRW_MAGIC;
 	sfw_test_instance_t *tsi = tsu->tsu_instance;
@@ -318,10 +318,10 @@ brw_client_done_rpc (sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
 	srpc_brw_reply_t    *reply = &msg->msg_body.brw_reply;
 	srpc_brw_reqst_t    *reqst = &rpc->crpc_reqstmsg.msg_body.brw_reqst;
 
-	LASSERT (sn != NULL);
+	LASSERT(sn != NULL);
 
 	if (rpc->crpc_status != 0) {
-		CERROR ("BRW RPC to %s failed with %d\n",
+		CERROR("BRW RPC to %s failed with %d\n",
 			libcfs_id2str(rpc->crpc_dest), rpc->crpc_status);
 		if (!tsi->tsi_stopping) /* rpc could have been aborted */
 			atomic_inc(&sn->sn_brw_errors);
@@ -333,7 +333,7 @@ brw_client_done_rpc (sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
 		__swab32s(&reply->brw_status);
 	}
 
-	CDEBUG (reply->brw_status ? D_WARNING : D_NET,
+	CDEBUG(reply->brw_status ? D_WARNING : D_NET,
 		"BRW RPC to %s finished with brw_status: %d\n",
 		libcfs_id2str(rpc->crpc_dest), reply->brw_status);
 
@@ -347,7 +347,7 @@ brw_client_done_rpc (sfw_test_unit_t *tsu, srpc_client_rpc_t *rpc)
 		goto out;
 
 	if (brw_check_bulk(&rpc->crpc_bulk, reqst->brw_flags, magic) != 0) {
-		CERROR ("Bulk data from %s is corrupted!\n",
+		CERROR("Bulk data from %s is corrupted!\n",
 			libcfs_id2str(rpc->crpc_dest));
 		atomic_inc(&sn->sn_brw_errors);
 		rpc->crpc_status = -EBADMSG;
@@ -358,7 +358,7 @@ out:
 }
 
 void
-brw_server_rpc_done (srpc_server_rpc_t *rpc)
+brw_server_rpc_done(srpc_server_rpc_t *rpc)
 {
 	srpc_bulk_t *blk = rpc->srpc_bulk;
 
@@ -366,11 +366,11 @@ brw_server_rpc_done (srpc_server_rpc_t *rpc)
 		return;
 
 	if (rpc->srpc_status != 0)
-		CERROR ("Bulk transfer %s %s has failed: %d\n",
+		CERROR("Bulk transfer %s %s has failed: %d\n",
 			blk->bk_sink ? "from" : "to",
 			libcfs_id2str(rpc->srpc_peer), rpc->srpc_status);
 	else
-		CDEBUG (D_NET, "Transferred %d pages bulk data %s %s\n",
+		CDEBUG(D_NET, "Transferred %d pages bulk data %s %s\n",
 			blk->bk_niov, blk->bk_sink ? "from" : "to",
 			libcfs_id2str(rpc->srpc_peer));
 
@@ -378,21 +378,21 @@ brw_server_rpc_done (srpc_server_rpc_t *rpc)
 }
 
 int
-brw_bulk_ready (srpc_server_rpc_t *rpc, int status)
+brw_bulk_ready(srpc_server_rpc_t *rpc, int status)
 {
 	__u64	     magic = BRW_MAGIC;
 	srpc_brw_reply_t *reply = &rpc->srpc_replymsg.msg_body.brw_reply;
 	srpc_brw_reqst_t *reqst;
 	srpc_msg_t       *reqstmsg;
 
-	LASSERT (rpc->srpc_bulk != NULL);
-	LASSERT (rpc->srpc_reqstbuf != NULL);
+	LASSERT(rpc->srpc_bulk != NULL);
+	LASSERT(rpc->srpc_reqstbuf != NULL);
 
 	reqstmsg = &rpc->srpc_reqstbuf->buf_msg;
 	reqst = &reqstmsg->msg_body.brw_reqst;
 
 	if (status != 0) {
-		CERROR ("BRW bulk %s failed for RPC from %s: %d\n",
+		CERROR("BRW bulk %s failed for RPC from %s: %d\n",
 			reqst->brw_rw == LST_BRW_READ ? "READ" : "WRITE",
 			libcfs_id2str(rpc->srpc_peer), status);
 		return -EIO;
@@ -405,7 +405,7 @@ brw_bulk_ready (srpc_server_rpc_t *rpc, int status)
 		__swab64s(&magic);
 
 	if (brw_check_bulk(rpc->srpc_bulk, reqst->brw_flags, magic) != 0) {
-		CERROR ("Bulk data from %s is corrupted!\n",
+		CERROR("Bulk data from %s is corrupted!\n",
 			libcfs_id2str(rpc->srpc_peer));
 		reply->brw_status = EBADMSG;
 	}
@@ -424,10 +424,10 @@ brw_server_handle(struct srpc_server_rpc *rpc)
 	int		  npg;
 	int	       rc;
 
-	LASSERT (sv->sv_id == SRPC_SERVICE_BRW);
+	LASSERT(sv->sv_id == SRPC_SERVICE_BRW);
 
 	if (reqstmsg->msg_magic != SRPC_MSG_MAGIC) {
-		LASSERT (reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
+		LASSERT(reqstmsg->msg_magic == __swab32(SRPC_MSG_MAGIC));
 
 		__swab32s(&reqst->brw_rw);
 		__swab32s(&reqst->brw_len);
@@ -435,7 +435,7 @@ brw_server_handle(struct srpc_server_rpc *rpc)
 		__swab64s(&reqst->brw_rpyid);
 		__swab64s(&reqst->brw_bulkid);
 	}
-	LASSERT (reqstmsg->msg_type == (__u32)srpc_service2request(sv->sv_id));
+	LASSERT(reqstmsg->msg_type == (__u32)srpc_service2request(sv->sv_id));
 
 	reply->brw_status = 0;
 	rpc->srpc_done = brw_server_rpc_done;
-- 
cgit 


From af66a6e29c5ed5032ae0678702d5531f954beb39 Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Fri, 18 Oct 2013 02:11:44 -0700
Subject: staging/lustre/lnet: Remove unnecessary whitespace in lib-move.c

Remove unnecessary whitespace around open parentheses in lib-move.c
to meet kernel coding standards.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/lnet/lib-move.c | 294 ++++++++++++++--------------
 1 file changed, 147 insertions(+), 147 deletions(-)

diff --git a/drivers/staging/lustre/lnet/lnet/lib-move.c b/drivers/staging/lustre/lnet/lnet/lib-move.c
index 49b0f1287a69..1b05108d9c3a 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-move.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-move.c
@@ -47,14 +47,14 @@ CFS_MODULE_PARM(local_nid_dist_zero, "i", int, 0444,
 		"Reserved");
 
 int
-lnet_fail_nid (lnet_nid_t nid, unsigned int threshold)
+lnet_fail_nid(lnet_nid_t nid, unsigned int threshold)
 {
 	lnet_test_peer_t  *tp;
 	struct list_head	*el;
 	struct list_head	*next;
 	struct list_head	 cull;
 
-	LASSERT (the_lnet.ln_init);
+	LASSERT(the_lnet.ln_init);
 
 	/* NB: use lnet_net_lock(0) to serialize operations on test peers */
 	if (threshold != 0) {
@@ -77,31 +77,31 @@ lnet_fail_nid (lnet_nid_t nid, unsigned int threshold)
 
 	lnet_net_lock(0);
 
-	list_for_each_safe (el, next, &the_lnet.ln_test_peers) {
-		tp = list_entry (el, lnet_test_peer_t, tp_list);
+	list_for_each_safe(el, next, &the_lnet.ln_test_peers) {
+		tp = list_entry(el, lnet_test_peer_t, tp_list);
 
 		if (tp->tp_threshold == 0 ||    /* needs culling anyway */
 		    nid == LNET_NID_ANY ||       /* removing all entries */
 		    tp->tp_nid == nid)	  /* matched this one */
 		{
-			list_del (&tp->tp_list);
-			list_add (&tp->tp_list, &cull);
+			list_del(&tp->tp_list);
+			list_add(&tp->tp_list, &cull);
 		}
 	}
 
 	lnet_net_unlock(0);
 
-	while (!list_empty (&cull)) {
-		tp = list_entry (cull.next, lnet_test_peer_t, tp_list);
+	while (!list_empty(&cull)) {
+		tp = list_entry(cull.next, lnet_test_peer_t, tp_list);
 
-		list_del (&tp->tp_list);
-		LIBCFS_FREE(tp, sizeof (*tp));
+		list_del(&tp->tp_list);
+		LIBCFS_FREE(tp, sizeof(*tp));
 	}
 	return 0;
 }
 
 static int
-fail_peer (lnet_nid_t nid, int outgoing)
+fail_peer(lnet_nid_t nid, int outgoing)
 {
 	lnet_test_peer_t *tp;
 	struct list_head       *el;
@@ -109,13 +109,13 @@ fail_peer (lnet_nid_t nid, int outgoing)
 	struct list_head	cull;
 	int	       fail = 0;
 
-	INIT_LIST_HEAD (&cull);
+	INIT_LIST_HEAD(&cull);
 
 	/* NB: use lnet_net_lock(0) to serialize operations on test peers */
 	lnet_net_lock(0);
 
-	list_for_each_safe (el, next, &the_lnet.ln_test_peers) {
-		tp = list_entry (el, lnet_test_peer_t, tp_list);
+	list_for_each_safe(el, next, &the_lnet.ln_test_peers) {
+		tp = list_entry(el, lnet_test_peer_t, tp_list);
 
 		if (tp->tp_threshold == 0) {
 			/* zombie entry */
@@ -123,8 +123,8 @@ fail_peer (lnet_nid_t nid, int outgoing)
 				/* only cull zombies on outgoing tests,
 				 * since we may be at interrupt priority on
 				 * incoming messages. */
-				list_del (&tp->tp_list);
-				list_add (&tp->tp_list, &cull);
+				list_del(&tp->tp_list);
+				list_add(&tp->tp_list, &cull);
 			}
 			continue;
 		}
@@ -138,8 +138,8 @@ fail_peer (lnet_nid_t nid, int outgoing)
 				if (outgoing &&
 				    tp->tp_threshold == 0) {
 					/* see above */
-					list_del (&tp->tp_list);
-					list_add (&tp->tp_list, &cull);
+					list_del(&tp->tp_list);
+					list_add(&tp->tp_list, &cull);
 				}
 			}
 			break;
@@ -148,18 +148,18 @@ fail_peer (lnet_nid_t nid, int outgoing)
 
 	lnet_net_unlock(0);
 
-	while (!list_empty (&cull)) {
-		tp = list_entry (cull.next, lnet_test_peer_t, tp_list);
-		list_del (&tp->tp_list);
+	while (!list_empty(&cull)) {
+		tp = list_entry(cull.next, lnet_test_peer_t, tp_list);
+		list_del(&tp->tp_list);
 
-		LIBCFS_FREE(tp, sizeof (*tp));
+		LIBCFS_FREE(tp, sizeof(*tp));
 	}
 
 	return (fail);
 }
 
 unsigned int
-lnet_iov_nob (unsigned int niov, struct iovec *iov)
+lnet_iov_nob(unsigned int niov, struct iovec *iov)
 {
 	unsigned int nob = 0;
 
@@ -171,7 +171,7 @@ lnet_iov_nob (unsigned int niov, struct iovec *iov)
 EXPORT_SYMBOL(lnet_iov_nob);
 
 void
-lnet_copy_iov2iov (unsigned int ndiov, struct iovec *diov, unsigned int doffset,
+lnet_copy_iov2iov(unsigned int ndiov, struct iovec *diov, unsigned int doffset,
 		   unsigned int nsiov, struct iovec *siov, unsigned int soffset,
 		   unsigned int nob)
 {
@@ -182,31 +182,31 @@ lnet_copy_iov2iov (unsigned int ndiov, struct iovec *diov, unsigned int doffset,
 		return;
 
 	/* skip complete frags before 'doffset' */
-	LASSERT (ndiov > 0);
+	LASSERT(ndiov > 0);
 	while (doffset >= diov->iov_len) {
 		doffset -= diov->iov_len;
 		diov++;
 		ndiov--;
-		LASSERT (ndiov > 0);
+		LASSERT(ndiov > 0);
 	}
 
 	/* skip complete frags before 'soffset' */
-	LASSERT (nsiov > 0);
+	LASSERT(nsiov > 0);
 	while (soffset >= siov->iov_len) {
 		soffset -= siov->iov_len;
 		siov++;
 		nsiov--;
-		LASSERT (nsiov > 0);
+		LASSERT(nsiov > 0);
 	}
 
 	do {
-		LASSERT (ndiov > 0);
-		LASSERT (nsiov > 0);
+		LASSERT(ndiov > 0);
+		LASSERT(nsiov > 0);
 		this_nob = MIN(diov->iov_len - doffset,
 			       siov->iov_len - soffset);
 		this_nob = MIN(this_nob, nob);
 
-		memcpy ((char *)diov->iov_base + doffset,
+		memcpy((char *)diov->iov_base + doffset,
 			(char *)siov->iov_base + soffset, this_nob);
 		nob -= this_nob;
 
@@ -230,7 +230,7 @@ lnet_copy_iov2iov (unsigned int ndiov, struct iovec *diov, unsigned int doffset,
 EXPORT_SYMBOL(lnet_copy_iov2iov);
 
 int
-lnet_extract_iov (int dst_niov, struct iovec *dst,
+lnet_extract_iov(int dst_niov, struct iovec *dst,
 		  int src_niov, struct iovec *src,
 		  unsigned int offset, unsigned int len)
 {
@@ -243,18 +243,18 @@ lnet_extract_iov (int dst_niov, struct iovec *dst,
 	if (len == 0)			   /* no data => */
 		return (0);		     /* no frags */
 
-	LASSERT (src_niov > 0);
+	LASSERT(src_niov > 0);
 	while (offset >= src->iov_len) {      /* skip initial frags */
 		offset -= src->iov_len;
 		src_niov--;
 		src++;
-		LASSERT (src_niov > 0);
+		LASSERT(src_niov > 0);
 	}
 
 	niov = 1;
 	for (;;) {
-		LASSERT (src_niov > 0);
-		LASSERT ((int)niov <= dst_niov);
+		LASSERT(src_niov > 0);
+		LASSERT((int)niov <= dst_niov);
 
 		frag_len = src->iov_len - offset;
 		dst->iov_base = ((char *)src->iov_base) + offset;
@@ -278,7 +278,7 @@ EXPORT_SYMBOL(lnet_extract_iov);
 
 
 unsigned int
-lnet_kiov_nob (unsigned int niov, lnet_kiov_t *kiov)
+lnet_kiov_nob(unsigned int niov, lnet_kiov_t *kiov)
 {
 	unsigned int  nob = 0;
 
@@ -290,7 +290,7 @@ lnet_kiov_nob (unsigned int niov, lnet_kiov_t *kiov)
 EXPORT_SYMBOL(lnet_kiov_nob);
 
 void
-lnet_copy_kiov2kiov (unsigned int ndiov, lnet_kiov_t *diov, unsigned int doffset,
+lnet_copy_kiov2kiov(unsigned int ndiov, lnet_kiov_t *diov, unsigned int doffset,
 		     unsigned int nsiov, lnet_kiov_t *siov, unsigned int soffset,
 		     unsigned int nob)
 {
@@ -302,27 +302,27 @@ lnet_copy_kiov2kiov (unsigned int ndiov, lnet_kiov_t *diov, unsigned int doffset
 	if (nob == 0)
 		return;
 
-	LASSERT (!in_interrupt ());
+	LASSERT(!in_interrupt());
 
-	LASSERT (ndiov > 0);
+	LASSERT(ndiov > 0);
 	while (doffset >= diov->kiov_len) {
 		doffset -= diov->kiov_len;
 		diov++;
 		ndiov--;
-		LASSERT (ndiov > 0);
+		LASSERT(ndiov > 0);
 	}
 
-	LASSERT (nsiov > 0);
+	LASSERT(nsiov > 0);
 	while (soffset >= siov->kiov_len) {
 		soffset -= siov->kiov_len;
 		siov++;
 		nsiov--;
-		LASSERT (nsiov > 0);
+		LASSERT(nsiov > 0);
 	}
 
 	do {
-		LASSERT (ndiov > 0);
-		LASSERT (nsiov > 0);
+		LASSERT(ndiov > 0);
+		LASSERT(nsiov > 0);
 		this_nob = MIN(diov->kiov_len - doffset,
 			       siov->kiov_len - soffset);
 		this_nob = MIN(this_nob, nob);
@@ -338,7 +338,7 @@ lnet_copy_kiov2kiov (unsigned int ndiov, lnet_kiov_t *diov, unsigned int doffset
 		 * However in practice at least one of the kiovs will be mapped
 		 * kernel pages and the map/unmap will be NOOPs */
 
-		memcpy (daddr, saddr, this_nob);
+		memcpy(daddr, saddr, this_nob);
 		nob -= this_nob;
 
 		if (diov->kiov_len > doffset + this_nob) {
@@ -372,7 +372,7 @@ lnet_copy_kiov2kiov (unsigned int ndiov, lnet_kiov_t *diov, unsigned int doffset
 EXPORT_SYMBOL(lnet_copy_kiov2kiov);
 
 void
-lnet_copy_kiov2iov (unsigned int niov, struct iovec *iov, unsigned int iovoffset,
+lnet_copy_kiov2iov(unsigned int niov, struct iovec *iov, unsigned int iovoffset,
 		    unsigned int nkiov, lnet_kiov_t *kiov, unsigned int kiovoffset,
 		    unsigned int nob)
 {
@@ -383,27 +383,27 @@ lnet_copy_kiov2iov (unsigned int niov, struct iovec *iov, unsigned int iovoffset
 	if (nob == 0)
 		return;
 
-	LASSERT (!in_interrupt ());
+	LASSERT(!in_interrupt());
 
-	LASSERT (niov > 0);
+	LASSERT(niov > 0);
 	while (iovoffset >= iov->iov_len) {
 		iovoffset -= iov->iov_len;
 		iov++;
 		niov--;
-		LASSERT (niov > 0);
+		LASSERT(niov > 0);
 	}
 
-	LASSERT (nkiov > 0);
+	LASSERT(nkiov > 0);
 	while (kiovoffset >= kiov->kiov_len) {
 		kiovoffset -= kiov->kiov_len;
 		kiov++;
 		nkiov--;
-		LASSERT (nkiov > 0);
+		LASSERT(nkiov > 0);
 	}
 
 	do {
-		LASSERT (niov > 0);
-		LASSERT (nkiov > 0);
+		LASSERT(niov > 0);
+		LASSERT(nkiov > 0);
 		this_nob = MIN(iov->iov_len - iovoffset,
 			       kiov->kiov_len - kiovoffset);
 		this_nob = MIN(this_nob, nob);
@@ -412,7 +412,7 @@ lnet_copy_kiov2iov (unsigned int niov, struct iovec *iov, unsigned int iovoffset
 			addr = ((char *)kmap(kiov->kiov_page)) +
 				kiov->kiov_offset + kiovoffset;
 
-		memcpy ((char *)iov->iov_base + iovoffset, addr, this_nob);
+		memcpy((char *)iov->iov_base + iovoffset, addr, this_nob);
 		nob -= this_nob;
 
 		if (iov->iov_len > iovoffset + this_nob) {
@@ -442,7 +442,7 @@ lnet_copy_kiov2iov (unsigned int niov, struct iovec *iov, unsigned int iovoffset
 EXPORT_SYMBOL(lnet_copy_kiov2iov);
 
 void
-lnet_copy_iov2kiov (unsigned int nkiov, lnet_kiov_t *kiov, unsigned int kiovoffset,
+lnet_copy_iov2kiov(unsigned int nkiov, lnet_kiov_t *kiov, unsigned int kiovoffset,
 		    unsigned int niov, struct iovec *iov, unsigned int iovoffset,
 		    unsigned int nob)
 {
@@ -453,27 +453,27 @@ lnet_copy_iov2kiov (unsigned int nkiov, lnet_kiov_t *kiov, unsigned int kiovoffs
 	if (nob == 0)
 		return;
 
-	LASSERT (!in_interrupt ());
+	LASSERT(!in_interrupt());
 
-	LASSERT (nkiov > 0);
+	LASSERT(nkiov > 0);
 	while (kiovoffset >= kiov->kiov_len) {
 		kiovoffset -= kiov->kiov_len;
 		kiov++;
 		nkiov--;
-		LASSERT (nkiov > 0);
+		LASSERT(nkiov > 0);
 	}
 
-	LASSERT (niov > 0);
+	LASSERT(niov > 0);
 	while (iovoffset >= iov->iov_len) {
 		iovoffset -= iov->iov_len;
 		iov++;
 		niov--;
-		LASSERT (niov > 0);
+		LASSERT(niov > 0);
 	}
 
 	do {
-		LASSERT (nkiov > 0);
-		LASSERT (niov > 0);
+		LASSERT(nkiov > 0);
+		LASSERT(niov > 0);
 		this_nob = MIN(kiov->kiov_len - kiovoffset,
 			       iov->iov_len - iovoffset);
 		this_nob = MIN(this_nob, nob);
@@ -482,7 +482,7 @@ lnet_copy_iov2kiov (unsigned int nkiov, lnet_kiov_t *kiov, unsigned int kiovoffs
 			addr = ((char *)kmap(kiov->kiov_page)) +
 				kiov->kiov_offset + kiovoffset;
 
-		memcpy (addr, (char *)iov->iov_base + iovoffset, this_nob);
+		memcpy(addr, (char *)iov->iov_base + iovoffset, this_nob);
 		nob -= this_nob;
 
 		if (kiov->kiov_len > kiovoffset + this_nob) {
@@ -511,7 +511,7 @@ lnet_copy_iov2kiov (unsigned int nkiov, lnet_kiov_t *kiov, unsigned int kiovoffs
 EXPORT_SYMBOL(lnet_copy_iov2kiov);
 
 int
-lnet_extract_kiov (int dst_niov, lnet_kiov_t *dst,
+lnet_extract_kiov(int dst_niov, lnet_kiov_t *dst,
 		   int src_niov, lnet_kiov_t *src,
 		   unsigned int offset, unsigned int len)
 {
@@ -524,18 +524,18 @@ lnet_extract_kiov (int dst_niov, lnet_kiov_t *dst,
 	if (len == 0)			   /* no data => */
 		return (0);		     /* no frags */
 
-	LASSERT (src_niov > 0);
+	LASSERT(src_niov > 0);
 	while (offset >= src->kiov_len) {      /* skip initial frags */
 		offset -= src->kiov_len;
 		src_niov--;
 		src++;
-		LASSERT (src_niov > 0);
+		LASSERT(src_niov > 0);
 	}
 
 	niov = 1;
 	for (;;) {
-		LASSERT (src_niov > 0);
-		LASSERT ((int)niov <= dst_niov);
+		LASSERT(src_niov > 0);
+		LASSERT((int)niov <= dst_niov);
 
 		frag_len = src->kiov_len - offset;
 		dst->kiov_page = src->kiov_page;
@@ -543,12 +543,12 @@ lnet_extract_kiov (int dst_niov, lnet_kiov_t *dst,
 
 		if (len <= frag_len) {
 			dst->kiov_len = len;
-			LASSERT (dst->kiov_offset + dst->kiov_len <= PAGE_CACHE_SIZE);
+			LASSERT(dst->kiov_offset + dst->kiov_len <= PAGE_CACHE_SIZE);
 			return (niov);
 		}
 
 		dst->kiov_len = frag_len;
-		LASSERT (dst->kiov_offset + dst->kiov_len <= PAGE_CACHE_SIZE);
+		LASSERT(dst->kiov_offset + dst->kiov_len <= PAGE_CACHE_SIZE);
 
 		len -= frag_len;
 		dst++;
@@ -569,8 +569,8 @@ lnet_ni_recv(lnet_ni_t *ni, void *private, lnet_msg_t *msg, int delayed,
 	lnet_kiov_t  *kiov = NULL;
 	int	   rc;
 
-	LASSERT (!in_interrupt ());
-	LASSERT (mlen == 0 || msg != NULL);
+	LASSERT(!in_interrupt());
+	LASSERT(mlen == 0 || msg != NULL);
 
 	if (msg != NULL) {
 		LASSERT(msg->msg_receiving);
@@ -587,8 +587,8 @@ lnet_ni_recv(lnet_ni_t *ni, void *private, lnet_msg_t *msg, int delayed,
 			iov  = msg->msg_iov;
 			kiov = msg->msg_kiov;
 
-			LASSERT (niov > 0);
-			LASSERT ((iov == NULL) != (kiov == NULL));
+			LASSERT(niov > 0);
+			LASSERT((iov == NULL) != (kiov == NULL));
 		}
 	}
 
@@ -603,12 +603,12 @@ lnet_setpayloadbuffer(lnet_msg_t *msg)
 {
 	lnet_libmd_t *md = msg->msg_md;
 
-	LASSERT (msg->msg_len > 0);
-	LASSERT (!msg->msg_routing);
-	LASSERT (md != NULL);
-	LASSERT (msg->msg_niov == 0);
-	LASSERT (msg->msg_iov == NULL);
-	LASSERT (msg->msg_kiov == NULL);
+	LASSERT(msg->msg_len > 0);
+	LASSERT(!msg->msg_routing);
+	LASSERT(md != NULL);
+	LASSERT(msg->msg_niov == 0);
+	LASSERT(msg->msg_iov == NULL);
+	LASSERT(msg->msg_kiov == NULL);
 
 	msg->msg_niov = md->md_niov;
 	if ((md->md_options & LNET_MD_KIOV) != 0)
@@ -629,7 +629,7 @@ lnet_prep_send(lnet_msg_t *msg, int type, lnet_process_id_t target,
 	if (len != 0)
 		lnet_setpayloadbuffer(msg);
 
-	memset (&msg->msg_hdr, 0, sizeof (msg->msg_hdr));
+	memset(&msg->msg_hdr, 0, sizeof(msg->msg_hdr));
 	msg->msg_hdr.type	   = cpu_to_le32(type);
 	msg->msg_hdr.dest_nid       = cpu_to_le64(target.nid);
 	msg->msg_hdr.dest_pid       = cpu_to_le32(target.pid);
@@ -644,8 +644,8 @@ lnet_ni_send(lnet_ni_t *ni, lnet_msg_t *msg)
 	void   *priv = msg->msg_private;
 	int     rc;
 
-	LASSERT (!in_interrupt ());
-	LASSERT (LNET_NETTYP(LNET_NIDNET(ni->ni_nid)) == LOLND ||
+	LASSERT(!in_interrupt());
+	LASSERT(LNET_NETTYP(LNET_NIDNET(ni->ni_nid)) == LOLND ||
 		 (msg->msg_txcredit && msg->msg_peertxcredit));
 
 	rc = (ni->ni_lnd->lnd_send)(ni, priv, msg);
@@ -698,12 +698,12 @@ lnet_ni_query_locked(lnet_ni_t *ni, lnet_peer_t *lp)
 
 /* NB: always called with lnet_net_lock held */
 static inline int
-lnet_peer_is_alive (lnet_peer_t *lp, cfs_time_t now)
+lnet_peer_is_alive(lnet_peer_t *lp, cfs_time_t now)
 {
 	int	alive;
 	cfs_time_t deadline;
 
-	LASSERT (lnet_peer_aliveness_enabled(lp));
+	LASSERT(lnet_peer_aliveness_enabled(lp));
 
 	/* Trust lnet_notify() if it has more recent aliveness news, but
 	 * ignore the initial assumed death (see lnet_peers_start_down()).
@@ -731,7 +731,7 @@ lnet_peer_is_alive (lnet_peer_t *lp, cfs_time_t now)
 /* NB: returns 1 when alive, 0 when dead, negative when error;
  *     may drop the lnet_net_lock */
 int
-lnet_peer_alive_locked (lnet_peer_t *lp)
+lnet_peer_alive_locked(lnet_peer_t *lp)
 {
 	cfs_time_t now = cfs_time_current();
 
@@ -809,7 +809,7 @@ lnet_post_send_locked(lnet_msg_t *msg, int do_send)
 	}
 
 	if (!msg->msg_peertxcredit) {
-		LASSERT ((lp->lp_txcredits < 0) ==
+		LASSERT((lp->lp_txcredits < 0) ==
 			 !list_empty(&lp->lp_txq));
 
 		msg->msg_peertxcredit = 1;
@@ -873,7 +873,7 @@ lnet_msg2bufpool(lnet_msg_t *msg)
 }
 
 int
-lnet_post_routed_recv_locked (lnet_msg_t *msg, int do_recv)
+lnet_post_routed_recv_locked(lnet_msg_t *msg, int do_recv)
 {
 	/* lnet_parse is going to lnet_net_unlock immediately after this, so it
 	 * sets do_recv FALSE and I don't do the unlock/send/lock bit.  I
@@ -882,18 +882,18 @@ lnet_post_routed_recv_locked (lnet_msg_t *msg, int do_recv)
 	lnet_rtrbufpool_t   *rbp;
 	lnet_rtrbuf_t       *rb;
 
-	LASSERT (msg->msg_iov == NULL);
-	LASSERT (msg->msg_kiov == NULL);
-	LASSERT (msg->msg_niov == 0);
-	LASSERT (msg->msg_routing);
-	LASSERT (msg->msg_receiving);
-	LASSERT (!msg->msg_sending);
+	LASSERT(msg->msg_iov == NULL);
+	LASSERT(msg->msg_kiov == NULL);
+	LASSERT(msg->msg_niov == 0);
+	LASSERT(msg->msg_routing);
+	LASSERT(msg->msg_receiving);
+	LASSERT(!msg->msg_sending);
 
 	/* non-lnet_parse callers only receive delayed messages */
 	LASSERT(!do_recv || msg->msg_rx_delayed);
 
 	if (!msg->msg_peerrtrcredit) {
-		LASSERT ((lp->lp_rtrcredits < 0) ==
+		LASSERT((lp->lp_rtrcredits < 0) ==
 			 !list_empty(&lp->lp_rtrq));
 
 		msg->msg_peerrtrcredit = 1;
@@ -913,7 +913,7 @@ lnet_post_routed_recv_locked (lnet_msg_t *msg, int do_recv)
 	rbp = lnet_msg2bufpool(msg);
 
 	if (!msg->msg_rtrcredit) {
-		LASSERT ((rbp->rbp_credits < 0) ==
+		LASSERT((rbp->rbp_credits < 0) ==
 			 !list_empty(&rbp->rbp_msgs));
 
 		msg->msg_rtrcredit = 1;
@@ -930,7 +930,7 @@ lnet_post_routed_recv_locked (lnet_msg_t *msg, int do_recv)
 		}
 	}
 
-	LASSERT (!list_empty(&rbp->rbp_bufs));
+	LASSERT(!list_empty(&rbp->rbp_bufs));
 	rb = list_entry(rbp->rbp_bufs.next, lnet_rtrbuf_t, rb_list);
 	list_del(&rb->rb_list);
 
@@ -985,7 +985,7 @@ lnet_return_tx_credits_locked(lnet_msg_t *msg)
 			!list_empty(&txpeer->lp_txq));
 
 		txpeer->lp_txqnob -= msg->msg_len + sizeof(lnet_hdr_t);
-		LASSERT (txpeer->lp_txqnob >= 0);
+		LASSERT(txpeer->lp_txqnob >= 0);
 
 		txpeer->lp_txcredits++;
 		if (txpeer->lp_txcredits <= 0) {
@@ -1020,11 +1020,11 @@ lnet_return_rx_credits_locked(lnet_msg_t *msg)
 		/* NB If a msg ever blocks for a buffer in rbp_msgs, it stays
 		 * there until it gets one allocated, or aborts the wait
 		 * itself */
-		LASSERT (msg->msg_kiov != NULL);
+		LASSERT(msg->msg_kiov != NULL);
 
 		rb = list_entry(msg->msg_kiov, lnet_rtrbuf_t, rb_kiov[0]);
 		rbp = rb->rb_pool;
-		LASSERT (rbp == lnet_msg2bufpool(msg));
+		LASSERT(rbp == lnet_msg2bufpool(msg));
 
 		msg->msg_kiov = NULL;
 		msg->msg_rtrcredit = 0;
@@ -1172,10 +1172,10 @@ lnet_send(lnet_nid_t src_nid, lnet_msg_t *msg, lnet_nid_t rtr_nid)
 	 * but we might want to use pre-determined router for ACK/REPLY
 	 * in the future */
 	/* NB: ni != NULL == interface pre-determined (ACK/REPLY) */
-	LASSERT (msg->msg_txpeer == NULL);
-	LASSERT (!msg->msg_sending);
-	LASSERT (!msg->msg_target_is_router);
-	LASSERT (!msg->msg_receiving);
+	LASSERT(msg->msg_txpeer == NULL);
+	LASSERT(!msg->msg_sending);
+	LASSERT(!msg->msg_target_is_router);
+	LASSERT(!msg->msg_receiving);
 
 	msg->msg_sending = 1;
 
@@ -1200,7 +1200,7 @@ lnet_send(lnet_nid_t src_nid, lnet_msg_t *msg, lnet_nid_t rtr_nid)
 				      libcfs_nid2str(src_nid));
 			return -EINVAL;
 		}
-		LASSERT (!msg->msg_routing);
+		LASSERT(!msg->msg_routing);
 	}
 
 	/* Is this for someone on a local network? */
@@ -1249,7 +1249,7 @@ lnet_send(lnet_nid_t src_nid, lnet_msg_t *msg, lnet_nid_t rtr_nid)
 			/* ENOMEM or shutting down */
 			return rc;
 		}
-		LASSERT (lp->lp_ni == src_ni);
+		LASSERT(lp->lp_ni == src_ni);
 	} else {
 		/* sending to a remote network */
 		lp = lnet_find_route_locked(src_ni, dst_nid, rtr_nid);
@@ -1290,7 +1290,7 @@ lnet_send(lnet_nid_t src_nid, lnet_msg_t *msg, lnet_nid_t rtr_nid)
 			src_ni = lp->lp_ni;
 			src_nid = src_ni->ni_nid;
 		} else {
-			LASSERT (src_ni == lp->lp_ni);
+			LASSERT(src_ni == lp->lp_ni);
 			lnet_ni_decref_locked(src_ni, cpt);
 		}
 
@@ -1311,9 +1311,9 @@ lnet_send(lnet_nid_t src_nid, lnet_msg_t *msg, lnet_nid_t rtr_nid)
 
 	/* 'lp' is our best choice of peer */
 
-	LASSERT (!msg->msg_peertxcredit);
-	LASSERT (!msg->msg_txcredit);
-	LASSERT (msg->msg_txpeer == NULL);
+	LASSERT(!msg->msg_peertxcredit);
+	LASSERT(!msg->msg_txcredit);
+	LASSERT(msg->msg_txpeer == NULL);
 
 	msg->msg_txpeer = lp;		   /* msg takes my ref on lp */
 
@@ -1509,7 +1509,7 @@ lnet_parse_reply(lnet_ni_t *ni, lnet_msg_t *msg)
 		return ENOENT;		  /* +ve: OK but no match */
 	}
 
-	LASSERT (md->md_offset == 0);
+	LASSERT(md->md_offset == 0);
 
 	rlength = hdr->payload_length;
 	mlength = MIN(rlength, (int)md->md_length);
@@ -1614,7 +1614,7 @@ lnet_parse_forward_locked(lnet_ni_t *ni, lnet_msg_t *msg)
 }
 
 char *
-lnet_msgtyp2str (int type)
+lnet_msgtyp2str(int type)
 {
 	switch (type) {
 	case LNET_MSG_ACK:
@@ -1638,7 +1638,7 @@ lnet_print_hdr(lnet_hdr_t * hdr)
 {
 	lnet_process_id_t src = {0};
 	lnet_process_id_t dst = {0};
-	char *type_str = lnet_msgtyp2str (hdr->type);
+	char *type_str = lnet_msgtyp2str(hdr->type);
 
 	src.nid = hdr->src_nid;
 	src.pid = hdr->src_pid;
@@ -1709,7 +1709,7 @@ lnet_parse(lnet_ni_t *ni, lnet_hdr_t *hdr, lnet_nid_t from_nid,
 	__u32	  payload_length;
 	__u32	  type;
 
-	LASSERT (!in_interrupt ());
+	LASSERT(!in_interrupt());
 
 	type = le32_to_cpu(hdr->type);
 	src_nid = le64_to_cpu(hdr->src_nid);
@@ -1772,7 +1772,7 @@ lnet_parse(lnet_ni_t *ni, lnet_hdr_t *hdr, lnet_nid_t from_nid,
 	if (!for_me) {
 		if (LNET_NIDNET(dest_nid) == LNET_NIDNET(ni->ni_nid)) {
 			/* should have gone direct */
-			CERROR ("%s, src %s: Bad dest nid %s "
+			CERROR("%s, src %s: Bad dest nid %s "
 				"(should have been sent direct)\n",
 				libcfs_nid2str(from_nid),
 				libcfs_nid2str(src_nid),
@@ -1783,7 +1783,7 @@ lnet_parse(lnet_ni_t *ni, lnet_hdr_t *hdr, lnet_nid_t from_nid,
 		if (lnet_islocalnid(dest_nid)) {
 			/* dest is another local NI; sender should have used
 			 * this node's NID on its own network */
-			CERROR ("%s, src %s: Bad dest nid %s "
+			CERROR("%s, src %s: Bad dest nid %s "
 				"(it's my nid but on a different network)\n",
 				libcfs_nid2str(from_nid),
 				libcfs_nid2str(src_nid),
@@ -1792,7 +1792,7 @@ lnet_parse(lnet_ni_t *ni, lnet_hdr_t *hdr, lnet_nid_t from_nid,
 		}
 
 		if (rdma_req && type == LNET_MSG_GET) {
-			CERROR ("%s, src %s: Bad optimized GET for %s "
+			CERROR("%s, src %s: Bad optimized GET for %s "
 				"(final destination must be me)\n",
 				libcfs_nid2str(from_nid),
 				libcfs_nid2str(src_nid),
@@ -1801,7 +1801,7 @@ lnet_parse(lnet_ni_t *ni, lnet_hdr_t *hdr, lnet_nid_t from_nid,
 		}
 
 		if (!the_lnet.ln_routing) {
-			CERROR ("%s, src %s: Dropping message for %s "
+			CERROR("%s, src %s: Dropping message for %s "
 				"(routing not enabled)\n",
 				libcfs_nid2str(from_nid),
 				libcfs_nid2str(src_nid),
@@ -1813,8 +1813,8 @@ lnet_parse(lnet_ni_t *ni, lnet_hdr_t *hdr, lnet_nid_t from_nid,
 	/* Message looks OK; we're not going to return an error, so we MUST
 	 * call back lnd_recv() come what may... */
 
-	if (!list_empty (&the_lnet.ln_test_peers) && /* normally we don't */
-	    fail_peer (src_nid, 0))	     /* shall we now? */
+	if (!list_empty(&the_lnet.ln_test_peers) && /* normally we don't */
+	    fail_peer(src_nid, 0))	     /* shall we now? */
 	{
 		CERROR("%s, src %s: Dropping %s to simulate failure\n",
 		       libcfs_nid2str(from_nid), libcfs_nid2str(src_nid),
@@ -1906,7 +1906,7 @@ lnet_parse(lnet_ni_t *ni, lnet_hdr_t *hdr, lnet_nid_t from_nid,
 	if (rc == 0)
 		return 0;
 
-	LASSERT (rc == ENOENT);
+	LASSERT(rc == ENOENT);
 
  free_drop:
 	LASSERT(msg->msg_md == NULL);
@@ -2047,11 +2047,11 @@ LNetPut(lnet_nid_t self, lnet_handle_md_t mdh, lnet_ack_req_t ack,
 	int			cpt;
 	int			rc;
 
-	LASSERT (the_lnet.ln_init);
-	LASSERT (the_lnet.ln_refcount > 0);
+	LASSERT(the_lnet.ln_init);
+	LASSERT(the_lnet.ln_refcount > 0);
 
-	if (!list_empty (&the_lnet.ln_test_peers) && /* normally we don't */
-	    fail_peer (target.nid, 1))	  /* shall we now? */
+	if (!list_empty(&the_lnet.ln_test_peers) && /* normally we don't */
+	    fail_peer(target.nid, 1))	  /* shall we now? */
 	{
 		CERROR("Dropping PUT to %s: simulated failure\n",
 		       libcfs_id2str(target));
@@ -2113,9 +2113,9 @@ LNetPut(lnet_nid_t self, lnet_handle_md_t mdh, lnet_ack_req_t ack,
 
 	rc = lnet_send(self, msg, LNET_NID_ANY);
 	if (rc != 0) {
-		CNETERR( "Error sending PUT to %s: %d\n",
+		CNETERR("Error sending PUT to %s: %d\n",
 		       libcfs_id2str(target), rc);
-		lnet_finalize (NULL, msg, rc);
+		lnet_finalize(NULL, msg, rc);
 	}
 
 	/* completion will be signalled by an event */
@@ -2124,7 +2124,7 @@ LNetPut(lnet_nid_t self, lnet_handle_md_t mdh, lnet_ack_req_t ack,
 EXPORT_SYMBOL(LNetPut);
 
 lnet_msg_t *
-lnet_create_reply_msg (lnet_ni_t *ni, lnet_msg_t *getmsg)
+lnet_create_reply_msg(lnet_ni_t *ni, lnet_msg_t *getmsg)
 {
 	/* The LND can DMA direct to the GET md (i.e. no REPLY msg).  This
 	 * returns a msg for the LND to pass to lnet_finalize() when the sink
@@ -2144,16 +2144,16 @@ lnet_create_reply_msg (lnet_ni_t *ni, lnet_msg_t *getmsg)
 	cpt = lnet_cpt_of_cookie(getmd->md_lh.lh_cookie);
 	lnet_res_lock(cpt);
 
-	LASSERT (getmd->md_refcount > 0);
+	LASSERT(getmd->md_refcount > 0);
 
 	if (msg == NULL) {
-		CERROR ("%s: Dropping REPLY from %s: can't allocate msg\n",
+		CERROR("%s: Dropping REPLY from %s: can't allocate msg\n",
 			libcfs_nid2str(ni->ni_nid), libcfs_id2str(peer_id));
 		goto drop;
 	}
 
 	if (getmd->md_threshold == 0) {
-		CERROR ("%s: Dropping REPLY from %s for inactive MD %p\n",
+		CERROR("%s: Dropping REPLY from %s for inactive MD %p\n",
 			libcfs_nid2str(ni->ni_nid), libcfs_id2str(peer_id),
 			getmd);
 		lnet_res_unlock(cpt);
@@ -2205,13 +2205,13 @@ lnet_set_reply_msg_len(lnet_ni_t *ni, lnet_msg_t *reply, unsigned int len)
 {
 	/* Set the REPLY length, now the RDMA that elides the REPLY message has
 	 * completed and I know it. */
-	LASSERT (reply != NULL);
-	LASSERT (reply->msg_type == LNET_MSG_GET);
-	LASSERT (reply->msg_ev.type == LNET_EVENT_REPLY);
+	LASSERT(reply != NULL);
+	LASSERT(reply->msg_type == LNET_MSG_GET);
+	LASSERT(reply->msg_ev.type == LNET_EVENT_REPLY);
 
 	/* NB I trusted my peer to RDMA.  If she tells me she's written beyond
 	 * the end of my buffer, I might as well be dead. */
-	LASSERT (len <= reply->msg_ev.mlength);
+	LASSERT(len <= reply->msg_ev.mlength);
 
 	reply->msg_ev.mlength = len;
 }
@@ -2247,11 +2247,11 @@ LNetGet(lnet_nid_t self, lnet_handle_md_t mdh,
 	int			cpt;
 	int			rc;
 
-	LASSERT (the_lnet.ln_init);
-	LASSERT (the_lnet.ln_refcount > 0);
+	LASSERT(the_lnet.ln_init);
+	LASSERT(the_lnet.ln_refcount > 0);
 
-	if (!list_empty (&the_lnet.ln_test_peers) && /* normally we don't */
-	    fail_peer (target.nid, 1))	  /* shall we now? */
+	if (!list_empty(&the_lnet.ln_test_peers) && /* normally we don't */
+	    fail_peer(target.nid, 1))	  /* shall we now? */
 	{
 		CERROR("Dropping GET to %s: simulated failure\n",
 		       libcfs_id2str(target));
@@ -2307,9 +2307,9 @@ LNetGet(lnet_nid_t self, lnet_handle_md_t mdh,
 
 	rc = lnet_send(self, msg, LNET_NID_ANY);
 	if (rc < 0) {
-		CNETERR( "Error sending GET to %s: %d\n",
+		CNETERR("Error sending GET to %s: %d\n",
 		       libcfs_id2str(target), rc);
-		lnet_finalize (NULL, msg, rc);
+		lnet_finalize(NULL, msg, rc);
 	}
 
 	/* completion will be signalled by an event */
@@ -2348,12 +2348,12 @@ LNetDist(lnet_nid_t dstnid, lnet_nid_t *srcnidp, __u32 *orderp)
 	 * keep order 0 free for 0@lo and order 1 free for a local NID
 	 * match */
 
-	LASSERT (the_lnet.ln_init);
-	LASSERT (the_lnet.ln_refcount > 0);
+	LASSERT(the_lnet.ln_init);
+	LASSERT(the_lnet.ln_refcount > 0);
 
 	cpt = lnet_net_lock_current();
 
-	list_for_each (e, &the_lnet.ln_nis) {
+	list_for_each(e, &the_lnet.ln_nis) {
 		ni = list_entry(e, lnet_ni_t, ni_list);
 
 		if (ni->ni_nid == dstnid) {
@@ -2390,7 +2390,7 @@ LNetDist(lnet_nid_t dstnid, lnet_nid_t *srcnidp, __u32 *orderp)
 			lnet_route_t *route;
 			lnet_route_t *shortest = NULL;
 
-			LASSERT (!list_empty(&rnet->lrn_routes));
+			LASSERT(!list_empty(&rnet->lrn_routes));
 
 			list_for_each_entry(route, &rnet->lrn_routes,
 						lr_list) {
@@ -2399,7 +2399,7 @@ LNetDist(lnet_nid_t dstnid, lnet_nid_t *srcnidp, __u32 *orderp)
 					shortest = route;
 			}
 
-			LASSERT (shortest != NULL);
+			LASSERT(shortest != NULL);
 			hops = shortest->lr_hops;
 			if (srcnidp != NULL)
 				*srcnidp = shortest->lr_gateway->lp_ni->ni_nid;
-- 
cgit 


From 9b79ca855e2ff70eb287e3601e6a344306093e9f Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Fri, 18 Oct 2013 02:11:54 -0700
Subject: staging/lustre/lnet: Move open braces to previous lines in lib-move.c

Move open braces to previous lines in lib-move.c to meet kernel
coding standards.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/lnet/lib-move.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/lustre/lnet/lnet/lib-move.c b/drivers/staging/lustre/lnet/lnet/lib-move.c
index 1b05108d9c3a..f2b46b32d8ad 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-move.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-move.c
@@ -82,8 +82,7 @@ lnet_fail_nid(lnet_nid_t nid, unsigned int threshold)
 
 		if (tp->tp_threshold == 0 ||    /* needs culling anyway */
 		    nid == LNET_NID_ANY ||       /* removing all entries */
-		    tp->tp_nid == nid)	  /* matched this one */
-		{
+		    tp->tp_nid == nid) {	  /* matched this one */
 			list_del(&tp->tp_list);
 			list_add(&tp->tp_list, &cull);
 		}
@@ -1814,8 +1813,7 @@ lnet_parse(lnet_ni_t *ni, lnet_hdr_t *hdr, lnet_nid_t from_nid,
 	 * call back lnd_recv() come what may... */
 
 	if (!list_empty(&the_lnet.ln_test_peers) && /* normally we don't */
-	    fail_peer(src_nid, 0))	     /* shall we now? */
-	{
+	    fail_peer(src_nid, 0)) {	     /* shall we now? */
 		CERROR("%s, src %s: Dropping %s to simulate failure\n",
 		       libcfs_nid2str(from_nid), libcfs_nid2str(src_nid),
 		       lnet_msgtyp2str(type));
@@ -2051,8 +2049,7 @@ LNetPut(lnet_nid_t self, lnet_handle_md_t mdh, lnet_ack_req_t ack,
 	LASSERT(the_lnet.ln_refcount > 0);
 
 	if (!list_empty(&the_lnet.ln_test_peers) && /* normally we don't */
-	    fail_peer(target.nid, 1))	  /* shall we now? */
-	{
+	    fail_peer(target.nid, 1)) { /* shall we now? */
 		CERROR("Dropping PUT to %s: simulated failure\n",
 		       libcfs_id2str(target));
 		return -EIO;
@@ -2251,8 +2248,7 @@ LNetGet(lnet_nid_t self, lnet_handle_md_t mdh,
 	LASSERT(the_lnet.ln_refcount > 0);
 
 	if (!list_empty(&the_lnet.ln_test_peers) && /* normally we don't */
-	    fail_peer(target.nid, 1))	  /* shall we now? */
-	{
+	    fail_peer(target.nid, 1)) {	  /* shall we now? */
 		CERROR("Dropping GET to %s: simulated failure\n",
 		       libcfs_id2str(target));
 		return -EIO;
-- 
cgit 


From ae4003f056b74c9250971732b1c38906c656dffc Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Fri, 18 Oct 2013 02:12:02 -0700
Subject: staging/lustre/lnet: Adjust lines to meet 80 column limit in
 lib-move.c

Fixed lines to not exceed more than 80 columns per line to meet
kernel coding standards.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/lnet/lib-move.c | 28 +++++++++++++++++-----------
 1 file changed, 17 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/lustre/lnet/lnet/lib-move.c b/drivers/staging/lustre/lnet/lnet/lib-move.c
index f2b46b32d8ad..1373dffa21fa 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-move.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-move.c
@@ -290,8 +290,8 @@ EXPORT_SYMBOL(lnet_kiov_nob);
 
 void
 lnet_copy_kiov2kiov(unsigned int ndiov, lnet_kiov_t *diov, unsigned int doffset,
-		     unsigned int nsiov, lnet_kiov_t *siov, unsigned int soffset,
-		     unsigned int nob)
+		    unsigned int nsiov, lnet_kiov_t *siov, unsigned int soffset,
+		    unsigned int nob)
 {
 	/* NB diov, siov are READ-ONLY */
 	unsigned int    this_nob;
@@ -372,8 +372,8 @@ EXPORT_SYMBOL(lnet_copy_kiov2kiov);
 
 void
 lnet_copy_kiov2iov(unsigned int niov, struct iovec *iov, unsigned int iovoffset,
-		    unsigned int nkiov, lnet_kiov_t *kiov, unsigned int kiovoffset,
-		    unsigned int nob)
+		   unsigned int nkiov, lnet_kiov_t *kiov,
+		   unsigned int kiovoffset, unsigned int nob)
 {
 	/* NB iov, kiov are READ-ONLY */
 	unsigned int    this_nob;
@@ -441,9 +441,10 @@ lnet_copy_kiov2iov(unsigned int niov, struct iovec *iov, unsigned int iovoffset,
 EXPORT_SYMBOL(lnet_copy_kiov2iov);
 
 void
-lnet_copy_iov2kiov(unsigned int nkiov, lnet_kiov_t *kiov, unsigned int kiovoffset,
-		    unsigned int niov, struct iovec *iov, unsigned int iovoffset,
-		    unsigned int nob)
+lnet_copy_iov2kiov(unsigned int nkiov, lnet_kiov_t *kiov,
+		   unsigned int kiovoffset, unsigned int niov,
+		   struct iovec *iov, unsigned int iovoffset,
+		   unsigned int nob)
 {
 	/* NB kiov, iov are READ-ONLY */
 	unsigned int    this_nob;
@@ -542,7 +543,8 @@ lnet_extract_kiov(int dst_niov, lnet_kiov_t *dst,
 
 		if (len <= frag_len) {
 			dst->kiov_len = len;
-			LASSERT(dst->kiov_offset + dst->kiov_len <= PAGE_CACHE_SIZE);
+			LASSERT(dst->kiov_offset + dst->kiov_len
+					     <= PAGE_CACHE_SIZE);
 			return (niov);
 		}
 
@@ -1733,7 +1735,8 @@ lnet_parse(lnet_ni_t *ni, lnet_hdr_t *hdr, lnet_nid_t from_nid,
 
 	case LNET_MSG_PUT:
 	case LNET_MSG_REPLY:
-		if (payload_length > (__u32)(for_me ? LNET_MAX_PAYLOAD : LNET_MTU)) {
+		if (payload_length >
+		   (__u32)(for_me ? LNET_MAX_PAYLOAD : LNET_MTU)) {
 			CERROR("%s, src %s: bad %s payload %d "
 			       "(%d max expected)\n",
 			       libcfs_nid2str(from_nid),
@@ -1828,7 +1831,9 @@ lnet_parse(lnet_ni_t *ni, lnet_hdr_t *hdr, lnet_nid_t from_nid,
 		goto drop;
 	}
 
-	/* msg zeroed in lnet_msg_alloc; i.e. flags all clear, pointers NULL etc */
+	/* msg zeroed in lnet_msg_alloc;
+	 * i.e. flags all clear, pointers NULL etc
+	 */
 
 	msg->msg_type = type;
 	msg->msg_private = private;
@@ -2226,7 +2231,8 @@ EXPORT_SYMBOL(lnet_set_reply_msg_len);
  *
  * \param self,target,portal,match_bits,offset See the discussion in LNetPut().
  * \param mdh A handle for the MD that describes the memory into which the
- * requested data will be received. The MD must be "free floating" (See LNetMDBind()).
+ * requested data will be received. The MD must be "free floating"
+ * (See LNetMDBind()).
  *
  * \retval  0      Success, and only in this case events will be generated
  * and logged to EQ (if it exists) of the MD.
-- 
cgit 


From 2b5f2e44a0687987d04eaa2fc9b1da7857a15c79 Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Fri, 18 Oct 2013 02:12:11 -0700
Subject: staging/lustre/lnet: Remove () from return statements in lib-move.c

Remove unnecessary parentheses from return statements to
eliminate errors generated by checkpatch.pl and meet kernel
coding standards.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/lnet/lib-move.c | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/lustre/lnet/lnet/lib-move.c b/drivers/staging/lustre/lnet/lnet/lib-move.c
index 1373dffa21fa..96d7f861ae34 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-move.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-move.c
@@ -154,7 +154,7 @@ fail_peer(lnet_nid_t nid, int outgoing)
 		LIBCFS_FREE(tp, sizeof(*tp));
 	}
 
-	return (fail);
+	return fail;
 }
 
 unsigned int
@@ -165,7 +165,7 @@ lnet_iov_nob(unsigned int niov, struct iovec *iov)
 	while (niov-- > 0)
 		nob += (iov++)->iov_len;
 
-	return (nob);
+	return nob;
 }
 EXPORT_SYMBOL(lnet_iov_nob);
 
@@ -240,7 +240,7 @@ lnet_extract_iov(int dst_niov, struct iovec *dst,
 	unsigned int    niov;
 
 	if (len == 0)			   /* no data => */
-		return (0);		     /* no frags */
+		return 0;		     /* no frags */
 
 	LASSERT(src_niov > 0);
 	while (offset >= src->iov_len) {      /* skip initial frags */
@@ -260,7 +260,7 @@ lnet_extract_iov(int dst_niov, struct iovec *dst,
 
 		if (len <= frag_len) {
 			dst->iov_len = len;
-			return (niov);
+			return niov;
 		}
 
 		dst->iov_len = frag_len;
@@ -284,7 +284,7 @@ lnet_kiov_nob(unsigned int niov, lnet_kiov_t *kiov)
 	while (niov-- > 0)
 		nob += (kiov++)->kiov_len;
 
-	return (nob);
+	return nob;
 }
 EXPORT_SYMBOL(lnet_kiov_nob);
 
@@ -522,7 +522,7 @@ lnet_extract_kiov(int dst_niov, lnet_kiov_t *dst,
 	unsigned int    niov;
 
 	if (len == 0)			   /* no data => */
-		return (0);		     /* no frags */
+		return 0;		     /* no frags */
 
 	LASSERT(src_niov > 0);
 	while (offset >= src->kiov_len) {      /* skip initial frags */
@@ -545,7 +545,7 @@ lnet_extract_kiov(int dst_niov, lnet_kiov_t *dst,
 			dst->kiov_len = len;
 			LASSERT(dst->kiov_offset + dst->kiov_len
 					     <= PAGE_CACHE_SIZE);
-			return (niov);
+			return niov;
 		}
 
 		dst->kiov_len = frag_len;
@@ -1619,17 +1619,17 @@ lnet_msgtyp2str(int type)
 {
 	switch (type) {
 	case LNET_MSG_ACK:
-		return ("ACK");
+		return "ACK";
 	case LNET_MSG_PUT:
-		return ("PUT");
+		return "PUT";
 	case LNET_MSG_GET:
-		return ("GET");
+		return "GET";
 	case LNET_MSG_REPLY:
-		return ("REPLY");
+		return "REPLY";
 	case LNET_MSG_HELLO:
-		return ("HELLO");
+		return "HELLO";
 	default:
-		return ("<UNKNOWN>");
+		return "<UNKNOWN>";
 	}
 }
 EXPORT_SYMBOL(lnet_msgtyp2str);
-- 
cgit 


From 51f01fabe99bb6d22a343bbcbac8adf10470c125 Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Fri, 18 Oct 2013 02:12:18 -0700
Subject: staging/lustre/lnet: Reformat pointer variable in lib-move.c

Reformat a pointer variable in lib-move.c to meet kernel
coding standards.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/lnet/lib-move.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lnet/lnet/lib-move.c b/drivers/staging/lustre/lnet/lnet/lib-move.c
index 96d7f861ae34..b6f8ad38628b 100644
--- a/drivers/staging/lustre/lnet/lnet/lib-move.c
+++ b/drivers/staging/lustre/lnet/lnet/lib-move.c
@@ -1635,7 +1635,7 @@ lnet_msgtyp2str(int type)
 EXPORT_SYMBOL(lnet_msgtyp2str);
 
 void
-lnet_print_hdr(lnet_hdr_t * hdr)
+lnet_print_hdr(lnet_hdr_t *hdr)
 {
 	lnet_process_id_t src = {0};
 	lnet_process_id_t dst = {0};
-- 
cgit 


From 28ad960e7a4d102202b3e136404699243259cac2 Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Fri, 18 Oct 2013 11:52:34 -0700
Subject: staging/lustre/lnet: Fix static initialization error in router_proc.c

Fixed the static initialization error generated by checkpatch.pl to
meet kernel coding standards.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/lnet/router_proc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lnet/lnet/router_proc.c b/drivers/staging/lustre/lnet/lnet/router_proc.c
index 931f6ca25dc7..7522028c081f 100644
--- a/drivers/staging/lustre/lnet/lnet/router_proc.c
+++ b/drivers/staging/lustre/lnet/lnet/router_proc.c
@@ -30,7 +30,7 @@
 /* This is really lnet_proc.c. You might need to update sanity test 215
  * if any file format is changed. */
 
-static ctl_table_header_t *lnet_table_header = NULL;
+static ctl_table_header_t *lnet_table_header;
 
 #define CTL_LNET	 (0x100)
 enum {
-- 
cgit 


From 5f45aa166847e362cb0e03ef66bf90d7fb5d38e4 Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Fri, 18 Oct 2013 11:52:41 -0700
Subject: staging/lustre/lnet: Remove unnecessary spaces in router_proc.c

Remove unnecessary spaces between function names and open
parentheses in router_proc.c to meet kernel coding style.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/lnet/router_proc.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/lustre/lnet/lnet/router_proc.c b/drivers/staging/lustre/lnet/lnet/router_proc.c
index 7522028c081f..5e47de36c184 100644
--- a/drivers/staging/lustre/lnet/lnet/router_proc.c
+++ b/drivers/staging/lustre/lnet/lnet/router_proc.c
@@ -158,7 +158,7 @@ int LL_PROC_PROTO(proc_lnet_routes)
 	off = LNET_PROC_HOFF_GET(*ppos);
 	ver = LNET_PROC_VER_GET(*ppos);
 
-	LASSERT (!write);
+	LASSERT(!write);
 
 	if (*lenp == 0)
 		return 0;
@@ -172,11 +172,11 @@ int LL_PROC_PROTO(proc_lnet_routes)
 	if (*ppos == 0) {
 		s += snprintf(s, tmpstr + tmpsiz - s, "Routing %s\n",
 			      the_lnet.ln_routing ? "enabled" : "disabled");
-		LASSERT (tmpstr + tmpsiz - s > 0);
+		LASSERT(tmpstr + tmpsiz - s > 0);
 
 		s += snprintf(s, tmpstr + tmpsiz - s, "%-8s %4s %7s %s\n",
 			      "net", "hops", "state", "router");
-		LASSERT (tmpstr + tmpsiz - s > 0);
+		LASSERT(tmpstr + tmpsiz - s > 0);
 
 		lnet_net_lock(0);
 		ver = (unsigned int)the_lnet.ln_remote_nets_version;
@@ -281,7 +281,7 @@ int LL_PROC_PROTO(proc_lnet_routers)
 	off = LNET_PROC_HOFF_GET(*ppos);
 	ver = LNET_PROC_VER_GET(*ppos);
 
-	LASSERT (!write);
+	LASSERT(!write);
 
 	if (*lenp == 0)
 		return 0;
@@ -375,7 +375,7 @@ int LL_PROC_PROTO(proc_lnet_routers)
 					      pingsent,
 					      cfs_duration_sec(cfs_time_sub(deadline, now)),
 					      down_ni, libcfs_nid2str(nid));
-			LASSERT (tmpstr + tmpsiz - s > 0);
+			LASSERT(tmpstr + tmpsiz - s > 0);
 		}
 
 		lnet_net_unlock(0);
@@ -437,7 +437,7 @@ int LL_PROC_PROTO(proc_lnet_peers)
 			      "%-24s %4s %5s %5s %5s %5s %5s %5s %5s %s\n",
 			      "nid", "refs", "state", "last", "max",
 			      "rtr", "min", "tx", "min", "queue");
-		LASSERT (tmpstr + tmpsiz - s > 0);
+		LASSERT(tmpstr + tmpsiz - s > 0);
 
 		hoff++;
 	} else {
@@ -534,7 +534,7 @@ int LL_PROC_PROTO(proc_lnet_peers)
 				      libcfs_nid2str(nid), nrefs, aliveness,
 				      lastalive, maxcr, rtrcr, minrtrcr, txcr,
 				      mintxcr, txqnob);
-			LASSERT (tmpstr + tmpsiz - s > 0);
+			LASSERT(tmpstr + tmpsiz - s > 0);
 
 		} else { /* peer is NULL */
 			lnet_net_unlock(cpt);
@@ -592,7 +592,7 @@ static int __proc_lnet_buffers(void *data, int write,
 	s += snprintf(s, tmpstr + tmpsiz - s,
 		      "%5s %5s %7s %7s\n",
 		      "pages", "count", "credits", "min");
-	LASSERT (tmpstr + tmpsiz - s > 0);
+	LASSERT(tmpstr + tmpsiz - s > 0);
 
 	if (the_lnet.ln_rtrpools == NULL)
 		goto out; /* I'm not a router */
@@ -638,7 +638,7 @@ int LL_PROC_PROTO(proc_lnet_nis)
 
 	DECLARE_LL_PROC_PPOS_DECL;
 
-	LASSERT (!write);
+	LASSERT(!write);
 
 	if (*lenp == 0)
 		return 0;
@@ -654,7 +654,7 @@ int LL_PROC_PROTO(proc_lnet_nis)
 			      "%-24s %6s %5s %4s %4s %4s %5s %5s %5s\n",
 			      "nid", "status", "alive", "refs", "peer",
 			      "rtr", "max", "tx", "min");
-		LASSERT (tmpstr + tmpsiz - s > 0);
+		LASSERT(tmpstr + tmpsiz - s > 0);
 	} else {
 		struct list_head	*n;
 		lnet_ni_t	 *ni   = NULL;
-- 
cgit 


From 26a6fc93fc317d87d2fc2b5a9af8e0731b8b884c Mon Sep 17 00:00:00 2001
From: Eli Billauer <eli.billauer@gmail.com>
Date: Sat, 19 Oct 2013 01:02:25 +0300
Subject: staging: xillybus: Remember device pointer for use with dev_*
 functions

This is necessary so that xillybus_core uses the correct device pointer
for PCIe devices in diagnostic message calls (dev_err, dev_warn and dev_info)

Signed-off-by: Eli Billauer <eli.billauer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/xillybus/xillybus_pcie.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/xillybus/xillybus_pcie.c b/drivers/staging/xillybus/xillybus_pcie.c
index 67013652358b..bf26f68ea8ab 100644
--- a/drivers/staging/xillybus/xillybus_pcie.c
+++ b/drivers/staging/xillybus/xillybus_pcie.c
@@ -134,7 +134,7 @@ static int xilly_probe(struct pci_dev *pdev,
 	struct xilly_endpoint *endpoint;
 	int rc = 0;
 
-	endpoint = xillybus_init_endpoint(pdev, NULL, &pci_hw);
+	endpoint = xillybus_init_endpoint(pdev, &pdev->dev, &pci_hw);
 
 	if (!endpoint)
 		return -ENOMEM;
-- 
cgit 


From 2cb85c0845e5826b789d755c97e13e8d5dc85368 Mon Sep 17 00:00:00 2001
From: Eli Billauer <eli.billauer@gmail.com>
Date: Sat, 19 Oct 2013 01:02:26 +0300
Subject: staging: xillybus: Use dev_* functions instead of pr_* in
 xillybus_pcie

Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Eli Billauer <eli.billauer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/xillybus/xillybus_pcie.c | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/xillybus/xillybus_pcie.c b/drivers/staging/xillybus/xillybus_pcie.c
index bf26f68ea8ab..1811aa764213 100644
--- a/drivers/staging/xillybus/xillybus_pcie.c
+++ b/drivers/staging/xillybus/xillybus_pcie.c
@@ -148,29 +148,29 @@ static int xilly_probe(struct pci_dev *pdev,
 	pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S);
 
 	if (rc) {
-		pr_err("xillybus: pci_enable_device() failed. "
-		       "Aborting.\n");
+		dev_err(endpoint->dev,
+			"pci_enable_device() failed. Aborting.\n");
 		goto no_enable;
 	}
 
 	if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
-		pr_err("xillybus: Incorrect BAR configuration. "
-		       "Aborting.\n");
+		dev_err(endpoint->dev,
+			"Incorrect BAR configuration. Aborting.\n");
 		rc = -ENODEV;
 		goto bad_bar;
 	}
 
 	rc = pci_request_regions(pdev, xillyname);
 	if (rc) {
-		pr_err("xillybus: pci_request_regions() failed. "
-		       "Aborting.\n");
+		dev_err(endpoint->dev,
+			"pci_request_regions() failed. Aborting.\n");
 		goto failed_request_regions;
 	}
 
 	endpoint->registers = pci_iomap(pdev, 0, 128);
 
 	if (!endpoint->registers) {
-		pr_err("xillybus: Failed to map BAR 0. Aborting.\n");
+		dev_err(endpoint->dev, "Failed to map BAR 0. Aborting.\n");
 		goto failed_iomap0;
 	}
 
@@ -178,16 +178,16 @@ static int xilly_probe(struct pci_dev *pdev,
 
 	/* Set up a single MSI interrupt */
 	if (pci_enable_msi(pdev)) {
-		pr_err("xillybus: Failed to enable MSI interrupts. "
-		       "Aborting.\n");
+		dev_err(endpoint->dev,
+			"Failed to enable MSI interrupts. Aborting.\n");
 		rc = -ENODEV;
 		goto failed_enable_msi;
 	}
 	rc = request_irq(pdev->irq, xillybus_isr, 0, xillyname, endpoint);
 
 	if (rc) {
-		pr_err("xillybus: Failed to register MSI handler. "
-		       "Aborting.\n");
+		dev_err(endpoint->dev,
+			"Failed to register MSI handler. Aborting.\n");
 		rc = -ENODEV;
 		goto failed_register_msi;
 	}
@@ -202,8 +202,7 @@ static int xilly_probe(struct pci_dev *pdev,
 	if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)))
 		endpoint->dma_using_dac = 0;
 	else {
-		pr_err("xillybus: Failed to set DMA mask. "
-		       "Aborting.\n");
+		dev_err(endpoint->dev, "Failed to set DMA mask. Aborting.\n");
 		rc = -ENODEV;
 		goto failed_dmamask;
 	}
-- 
cgit 


From 1a2f9a9ea508182c000acca46d53958c0539900f Mon Sep 17 00:00:00 2001
From: Eli Billauer <eli.billauer@gmail.com>
Date: Sat, 19 Oct 2013 01:02:27 +0300
Subject: staging: xillybus: Use dev_* functions instead of pr_* in xillybus_of

Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Eli Billauer <eli.billauer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/xillybus/xillybus_of.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/xillybus/xillybus_of.c b/drivers/staging/xillybus/xillybus_of.c
index 2ae045e332d4..394bfea1af6e 100644
--- a/drivers/staging/xillybus/xillybus_of.c
+++ b/drivers/staging/xillybus/xillybus_of.c
@@ -117,14 +117,15 @@ static int xilly_drv_probe(struct platform_device *op)
 
 	rc = of_address_to_resource(dev->of_node, 0, &endpoint->res);
 	if (rc) {
-		pr_warn("xillybus: Failed to obtain device tree "
-			"resource\n");
+		dev_warn(endpoint->dev,
+			 "Failed to obtain device tree resource\n");
 		goto failed_request_regions;
 	}
 
 	if  (!request_mem_region(endpoint->res.start,
 				 resource_size(&endpoint->res), xillyname)) {
-		pr_err("xillybus: request_mem_region failed. Aborting.\n");
+		dev_err(endpoint->dev,
+			"request_mem_region failed. Aborting.\n");
 		rc = -EBUSY;
 		goto failed_request_regions;
 	}
@@ -132,7 +133,8 @@ static int xilly_drv_probe(struct platform_device *op)
 	endpoint->registers = of_iomap(dev->of_node, 0);
 
 	if (!endpoint->registers) {
-		pr_err("xillybus: Failed to map I/O memory. Aborting.\n");
+		dev_err(endpoint->dev,
+			"Failed to map I/O memory. Aborting.\n");
 		goto failed_iomap0;
 	}
 
@@ -141,8 +143,8 @@ static int xilly_drv_probe(struct platform_device *op)
 	rc = request_irq(irq, xillybus_isr, 0, xillyname, endpoint);
 
 	if (rc) {
-		pr_err("xillybus: Failed to register IRQ handler. "
-		       "Aborting.\n");
+		dev_err(endpoint->dev,
+			"Failed to register IRQ handler. Aborting.\n");
 		rc = -ENODEV;
 		goto failed_register_irq;
 	}
-- 
cgit 


From 35fcf7e3c014976be8cae81515f754959b8f3349 Mon Sep 17 00:00:00 2001
From: Eli Billauer <eli.billauer@gmail.com>
Date: Sat, 19 Oct 2013 01:02:28 +0300
Subject: staging: xillybus: Use dev_* functions instead of pr_* in
 xillybus_core

Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Eli Billauer <eli.billauer@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/xillybus/xillybus_core.c | 115 ++++++++++++++++++-------------
 1 file changed, 69 insertions(+), 46 deletions(-)

diff --git a/drivers/staging/xillybus/xillybus_core.c b/drivers/staging/xillybus/xillybus_core.c
index e77fb28440f8..2ebaf166038c 100644
--- a/drivers/staging/xillybus/xillybus_core.c
+++ b/drivers/staging/xillybus/xillybus_core.c
@@ -101,7 +101,7 @@ static struct workqueue_struct *xillybus_wq;
  * wr_mutex -> rd_mutex -> register_mutex -> wr_spinlock -> rd_spinlock
  */
 
-static void malformed_message(u32 *buf)
+static void malformed_message(struct xilly_endpoint *endpoint, u32 *buf)
 {
 	int opcode;
 	int msg_channel, msg_bufno, msg_data, msg_dir;
@@ -112,8 +112,9 @@ static void malformed_message(u32 *buf)
 	msg_bufno = (buf[0] >> 12) & 0x3ff;
 	msg_data = buf[1] & 0xfffffff;
 
-	pr_warn("xillybus: Malformed message (skipping): opcode=%d, channel=%03x, dir=%d, bufno=%03x, data=%07x\n",
-		opcode, msg_channel, msg_dir, msg_bufno, msg_data);
+	dev_warn(endpoint->dev,
+		 "Malformed message (skipping): opcode=%d, channel=%03x, dir=%d, bufno=%03x, data=%07x\n",
+		 opcode, msg_channel, msg_dir, msg_bufno, msg_data);
 }
 
 /*
@@ -151,14 +152,16 @@ irqreturn_t xillybus_isr(int irq, void *data)
 
 	for (i = 0; i < buf_size; i += 2)
 		if (((buf[i+1] >> 28) & 0xf) != ep->msg_counter) {
-			malformed_message(&buf[i]);
-			pr_warn("xillybus: Sending a NACK on counter %x (instead of %x) on entry %d\n",
+			malformed_message(ep, &buf[i]);
+			dev_warn(ep->dev,
+				 "Sending a NACK on counter %x (instead of %x) on entry %d\n",
 				((buf[i+1] >> 28) & 0xf),
 				ep->msg_counter,
 				i/2);
 
 			if (++ep->failed_messages > 10)
-				pr_err("xillybus: Lost sync with interrupt messages. Stopping.\n");
+				dev_err(ep->dev,
+					"Lost sync with interrupt messages. Stopping.\n");
 			else {
 				ep->ephw->hw_sync_sgl_for_device(
 					ep,
@@ -174,7 +177,7 @@ irqreturn_t xillybus_isr(int irq, void *data)
 			break;
 
 	if (i >= buf_size) {
-		pr_err("xillybus: Bad interrupt message. Stopping.\n");
+		dev_err(ep->dev, "Bad interrupt message. Stopping.\n");
 		return IRQ_HANDLED;
 	}
 
@@ -193,7 +196,7 @@ irqreturn_t xillybus_isr(int irq, void *data)
 
 			if ((msg_channel > ep->num_channels) ||
 			    (msg_channel == 0)) {
-				malformed_message(&buf[i]);
+				malformed_message(ep, &buf[i]);
 				break;
 			}
 
@@ -201,7 +204,7 @@ irqreturn_t xillybus_isr(int irq, void *data)
 
 			if (msg_dir) { /* Write channel */
 				if (msg_bufno >= channel->num_wr_buffers) {
-					malformed_message(&buf[i]);
+					malformed_message(ep, &buf[i]);
 					break;
 				}
 				spin_lock(&channel->wr_spinlock);
@@ -218,7 +221,7 @@ irqreturn_t xillybus_isr(int irq, void *data)
 				/* Read channel */
 
 				if (msg_bufno >= channel->num_rd_buffers) {
-					malformed_message(&buf[i]);
+					malformed_message(ep, &buf[i]);
 					break;
 				}
 
@@ -240,14 +243,14 @@ irqreturn_t xillybus_isr(int irq, void *data)
 			if ((msg_channel > ep->num_channels) ||
 			    (msg_channel == 0) || (!msg_dir) ||
 			    !ep->channels[msg_channel]->wr_supports_nonempty) {
-				malformed_message(&buf[i]);
+				malformed_message(ep, &buf[i]);
 				break;
 			}
 
 			channel = ep->channels[msg_channel];
 
 			if (msg_bufno >= channel->num_wr_buffers) {
-				malformed_message(&buf[i]);
+				malformed_message(ep, &buf[i]);
 				break;
 			}
 			spin_lock(&channel->wr_spinlock);
@@ -280,10 +283,11 @@ irqreturn_t xillybus_isr(int irq, void *data)
 		case XILLYMSG_OPCODE_FATAL_ERROR:
 			ep->fatal_error = 1;
 			wake_up_interruptible(&ep->ep_wait); /* For select() */
-			pr_err("xillybus: FPGA reported a fatal error. This means that the low-level communication with the device has failed. This hardware problem is most likely unrelated to xillybus (neither kernel module nor FPGA core), but reports are still welcome. All I/O is aborted.\n");
+			dev_err(ep->dev,
+				"FPGA reported a fatal error. This means that the low-level communication with the device has failed. This hardware problem is most likely unrelated to Xillybus (neither kernel module nor FPGA core), but reports are still welcome. All I/O is aborted.\n");
 			break;
 		default:
-			malformed_message(&buf[i]);
+			malformed_message(ep, &buf[i]);
 			break;
 		}
 	}
@@ -477,7 +481,8 @@ static int xilly_setupchannels(struct xilly_endpoint *ep,
 
 		if ((channelnum > ep->num_channels) ||
 		    ((channelnum == 0) && !is_writebuf)) {
-			pr_err("xillybus: IDT requests channel out of range. Aborting.\n");
+			dev_err(ep->dev,
+				"IDT requests channel out of range. Aborting.\n");
 			return -ENODEV;
 		}
 
@@ -555,7 +560,8 @@ static int xilly_setupchannels(struct xilly_endpoint *ep,
 				 */
 				if ((left_of_wr_salami < bytebufsize) &&
 				    (left_of_wr_salami > 0)) {
-					pr_err("xillybus: Corrupt buffer allocation in IDT. Aborting.\n");
+					dev_err(ep->dev,
+						"Corrupt buffer allocation in IDT. Aborting.\n");
 					return -ENODEV;
 				}
 
@@ -632,7 +638,8 @@ static int xilly_setupchannels(struct xilly_endpoint *ep,
 				 */
 				if ((left_of_rd_salami < bytebufsize) &&
 				    (left_of_rd_salami > 0)) {
-					pr_err("xillybus: Corrupt buffer allocation in IDT. Aborting.\n");
+					dev_err(ep->dev,
+						"Corrupt buffer allocation in IDT. Aborting.\n");
 					return -ENODEV;
 				}
 
@@ -692,17 +699,19 @@ static int xilly_setupchannels(struct xilly_endpoint *ep,
 	}
 
 	if (!msg_buf_done) {
-		pr_err("xillybus: Corrupt IDT: No message buffer. Aborting.\n");
+		dev_err(ep->dev,
+			"Corrupt IDT: No message buffer. Aborting.\n");
 		return -ENODEV;
 	}
 
 	return 0;
 
 memfail:
-	pr_err("xillybus: Failed to allocate write buffer memory. Aborting.\n");
+	dev_err(ep->dev,
+		"Failed to allocate write buffer memory. Aborting.\n");
 	return -ENOMEM;
 dmafail:
-	pr_err("xillybus: Failed to map DMA memory!. Aborting.\n");
+	dev_err(ep->dev, "Failed to map DMA memory!. Aborting.\n");
 	return -ENOMEM;
 }
 
@@ -729,7 +738,8 @@ static void xilly_scan_idt(struct xilly_endpoint *endpoint,
 	scan++;
 
 	if (scan > end_of_idt) {
-		pr_err("xillybus: IDT device name list overflow. Aborting.\n");
+		dev_err(endpoint->dev,
+			"IDT device name list overflow. Aborting.\n");
 		idt_handle->chandesc = NULL;
 		return;
 	} else
@@ -740,7 +750,8 @@ static void xilly_scan_idt(struct xilly_endpoint *endpoint,
 	if (len & 0x03) {
 		idt_handle->chandesc = NULL;
 
-		pr_err("xillybus: Corrupt IDT device name list. Aborting.\n");
+		dev_err(endpoint->dev,
+			"Corrupt IDT device name list. Aborting.\n");
 	}
 
 	idt_handle->entries = len >> 2;
@@ -769,7 +780,7 @@ static int xilly_obtain_idt(struct xilly_endpoint *endpoint)
 					 XILLY_TIMEOUT);
 
 	if (channel->wr_sleepy) {
-		pr_err("xillybus: Failed to obtain IDT. Aborting.\n");
+		dev_err(endpoint->dev, "Failed to obtain IDT. Aborting.\n");
 
 		if (endpoint->fatal_error)
 			return -EIO;
@@ -785,7 +796,8 @@ static int xilly_obtain_idt(struct xilly_endpoint *endpoint)
 		DMA_FROM_DEVICE);
 
 	if (channel->wr_buffers[0]->end_offset != endpoint->idtlen) {
-		pr_err("xillybus: IDT length mismatch (%d != %d). Aborting.\n",
+		dev_err(endpoint->dev,
+			"IDT length mismatch (%d != %d). Aborting.\n",
 		       channel->wr_buffers[0]->end_offset, endpoint->idtlen);
 		rc = -ENODEV;
 		return rc;
@@ -793,7 +805,7 @@ static int xilly_obtain_idt(struct xilly_endpoint *endpoint)
 
 	if (crc32_le(~0, channel->wr_buffers[0]->addr,
 		     endpoint->idtlen+1) != 0) {
-		pr_err("xillybus: IDT failed CRC check. Aborting.\n");
+		dev_err(endpoint->dev, "IDT failed CRC check. Aborting.\n");
 		rc = -ENODEV;
 		return rc;
 	}
@@ -802,7 +814,8 @@ static int xilly_obtain_idt(struct xilly_endpoint *endpoint)
 
 	/* Check version number. Accept anything below 0x82 for now. */
 	if (*version > 0x82) {
-		pr_err("xillybus: No support for IDT version 0x%02x. Maybe the xillybus driver needs an upgarde. Aborting.\n",
+		dev_err(endpoint->dev,
+			"No support for IDT version 0x%02x. Maybe the xillybus driver needs an upgarde. Aborting.\n",
 		       (int) *version);
 		rc = -ENODEV;
 		return rc;
@@ -1291,7 +1304,8 @@ static int xillybus_myflush(struct xilly_channel *channel, long timeout)
 				 channel->rd_wait,
 				 (!channel->rd_full),
 				 timeout) == 0) {
-			pr_warn("xillybus: Timed out while flushing. Output data may be lost.\n");
+			dev_warn(channel->endpoint->dev,
+				"Timed out while flushing. Output data may be lost.\n");
 
 			rc = -ETIMEDOUT;
 			break;
@@ -1331,10 +1345,11 @@ static void xillybus_autoflush(struct work_struct *work)
 	rc = xillybus_myflush(channel, -1);
 
 	if (rc == -EINTR)
-		pr_warn("xillybus: Autoflush failed because work queue thread got a signal.\n");
+		dev_warn(channel->endpoint->dev,
+			 "Autoflush failed because work queue thread got a signal.\n");
 	else if (rc)
-		pr_err("xillybus: Autoflush failed under weird circumstances.\n");
-
+		dev_err(channel->endpoint->dev,
+			"Autoflush failed under weird circumstances.\n");
 }
 
 static ssize_t xillybus_write(struct file *filp, const char __user *userbuf,
@@ -1617,13 +1632,15 @@ static int xillybus_open(struct inode *inode, struct file *filp)
 	if ((filp->f_mode & FMODE_READ) && (filp->f_flags & O_NONBLOCK) &&
 	    (channel->wr_synchronous || !channel->wr_allow_partial ||
 	     !channel->wr_supports_nonempty)) {
-		pr_err("xillybus: open() failed: O_NONBLOCK not allowed for read on this device\n");
+		dev_err(endpoint->dev,
+			"open() failed: O_NONBLOCK not allowed for read on this device\n");
 		return -ENODEV;
 	}
 
 	if ((filp->f_mode & FMODE_WRITE) && (filp->f_flags & O_NONBLOCK) &&
 	    (channel->rd_synchronous || !channel->rd_allow_partial)) {
-		pr_err("xillybus: open() failed: O_NONBLOCK not allowed for write on this device\n");
+		dev_err(endpoint->dev,
+			"open() failed: O_NONBLOCK not allowed for write on this device\n");
 		return -ENODEV;
 	}
 
@@ -1738,7 +1755,8 @@ static int xillybus_release(struct inode *inode, struct file *filp)
 		rc = mutex_lock_interruptible(&channel->rd_mutex);
 
 		if (rc) {
-			pr_warn("xillybus: Failed to close file. Hardware left in messy state.\n");
+			dev_warn(channel->endpoint->dev,
+				 "Failed to close file. Hardware left in messy state.\n");
 			return rc;
 		}
 
@@ -1763,7 +1781,8 @@ static int xillybus_release(struct inode *inode, struct file *filp)
 	if (filp->f_mode & FMODE_READ) {
 		rc = mutex_lock_interruptible(&channel->wr_mutex);
 		if (rc) {
-			pr_warn("xillybus: Failed to close file. Hardware left in messy state.\n");
+			dev_warn(channel->endpoint->dev,
+				 "Failed to close file. Hardware left in messy state.\n");
 			return rc;
 		}
 
@@ -1824,7 +1843,8 @@ static int xillybus_release(struct inode *inode, struct file *filp)
 
 				if (channel->wr_sleepy) {
 					mutex_unlock(&channel->wr_mutex);
-					pr_warn("xillybus: Hardware failed to respond to close command, therefore left in messy state.\n");
+					dev_warn(channel->endpoint->dev,
+						 "Hardware failed to respond to close command, therefore left in messy state.\n");
 					return -EINTR;
 				}
 			}
@@ -1990,7 +2010,7 @@ static int xillybus_init_chrdev(struct xilly_endpoint *endpoint,
 				 xillyname);
 
 	if (rc) {
-		pr_warn("xillybus: Failed to obtain major/minors");
+		dev_warn(endpoint->dev, "Failed to obtain major/minors");
 		goto error1;
 	}
 
@@ -2002,7 +2022,7 @@ static int xillybus_init_chrdev(struct xilly_endpoint *endpoint,
 	rc = cdev_add(&endpoint->cdev, MKDEV(major, minor),
 		      endpoint->num_channels);
 	if (rc) {
-		pr_warn("xillybus: Failed to add cdev. Aborting.\n");
+		dev_warn(endpoint->dev, "Failed to add cdev. Aborting.\n");
 		goto error2;
 	}
 
@@ -2025,13 +2045,15 @@ static int xillybus_init_chrdev(struct xilly_endpoint *endpoint,
 				       "%s", devname);
 
 		if (IS_ERR(device)) {
-			pr_warn("xillybus: Failed to create %s device. Aborting.\n", devname);
+			dev_warn(endpoint->dev,
+				 "Failed to create %s device. Aborting.\n",
+				 devname);
 			goto error3;
 		}
 	}
 
-	pr_info("xillybus: Created %d device files.\n",
-		endpoint->num_channels);
+	dev_info(endpoint->dev, "Created %d device files.\n",
+		 endpoint->num_channels);
 	return 0; /* succeed */
 
 error3:
@@ -2060,8 +2082,8 @@ static void xillybus_cleanup_chrdev(struct xilly_endpoint *endpoint)
 				       endpoint->lowest_minor),
 				 endpoint->num_channels);
 
-	pr_info("xillybus: Removed %d device files.\n",
-		endpoint->num_channels);
+	dev_info(endpoint->dev, "Removed %d device files.\n",
+		 endpoint->num_channels);
 }
 
 
@@ -2074,7 +2096,7 @@ struct xilly_endpoint *xillybus_init_endpoint(struct pci_dev *pdev,
 
 	endpoint = kzalloc(sizeof(*endpoint), GFP_KERNEL);
 	if (!endpoint) {
-		pr_err("xillybus: Failed to allocate memory. Aborting.\n");
+		dev_err(dev, "Failed to allocate memory. Aborting.\n");
 		return NULL;
 	}
 
@@ -2108,7 +2130,8 @@ static int xilly_quiesce(struct xilly_endpoint *endpoint)
 					 XILLY_TIMEOUT);
 
 	if (endpoint->idtlen < 0) {
-		pr_err("xillybus: Failed to quiesce the device on exit. Quitting while leaving a mess.\n");
+		dev_err(endpoint->dev,
+			"Failed to quiesce the device on exit. Quitting while leaving a mess.\n");
 		return -ENODEV;
 	}
 	return 0; /* Success */
@@ -2175,7 +2198,7 @@ int xillybus_endpoint_discovery(struct xilly_endpoint *endpoint)
 					 XILLY_TIMEOUT);
 
 	if (endpoint->idtlen < 0) {
-		pr_err("xillybus: No response from FPGA. Aborting.\n");
+		dev_err(endpoint->dev, "No response from FPGA. Aborting.\n");
 		rc = -ENODEV;
 		goto failed_quiesce;
 	}
@@ -2289,7 +2312,7 @@ static int __init xillybus_init(void)
 	xillybus_class = class_create(THIS_MODULE, xillyname);
 	if (IS_ERR(xillybus_class)) {
 		rc = PTR_ERR(xillybus_class);
-		pr_warn("xillybus: Failed to register class xillybus\n");
+		pr_warn("Failed to register class xillybus\n");
 
 		return rc;
 	}
-- 
cgit 


From 0735e83c789d0d00052ba634262e7ffb09f38279 Mon Sep 17 00:00:00 2001
From: Aldo Iljazi <me@aldo.io>
Date: Fri, 18 Oct 2013 18:14:31 +0300
Subject: Staging: ft1000: fixed two coding style issues

Fixed two coding style issues, specifically:

ft1000_proc.c:35: ERROR: space required before the open parenthesis '('
ft1000_proc.c:42: ERROR: space required before the open parenthesis '('

Signed-off-by: Aldo Iljazi <me@aldo.io>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-pcmcia/ft1000_proc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_proc.c b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_proc.c
index b2330f1df7e7..88f6f9ce304a 100644
--- a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_proc.c
+++ b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_proc.c
@@ -32,14 +32,14 @@
 
 #define seq_putx(m, message, size, var) \
 	seq_printf(m, message);	\
-	for(i = 0; i < (size - 1); i++) { \
+	for (i = 0; i < (size - 1); i++) { \
 		seq_printf(m, "%02x:", var[i]); \
 	} \
 	seq_printf(m, "%02x\n", var[i])
 
 #define seq_putd(m, message, size, var) \
 	seq_printf(m, message); \
-	for(i = 0; i < (size - 1); i++) { \
+	for (i = 0; i < (size - 1); i++) { \
 		seq_printf(m, "%d.", var[i]); \
 	} \
 	seq_printf(m, "%d\n", var[i])
-- 
cgit 


From f8d939e411f57a5facdfba66be2404f5ed238e30 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Thu, 17 Oct 2013 12:06:34 +0100
Subject: staging: comedi: rtd520: use normal bitfield functions

The `unsigned char chan_is_bipolar[]` member of `struct rtd_private` is
used with some macros as a packed array of 1-bit values that indicate
whether the corresponding entries in the hardware's "channel-gain" table
have been set to a bipolar (1) or unipolar (0) range, as the raw samples
from the hardware need to be cooked differently in each case.

Replace the declaration of the member with a standard Linux bitfield
using `DECLARE_BITFIELD()`, and replace the home-grown macros used
access the bitfield with the standard Linux non-atomic bitop functions,
`__set_bit()`, `__clear_bit()` and `test_bit()`.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/rtd520.c | 27 +++++++--------------------
 1 file changed, 7 insertions(+), 20 deletions(-)

diff --git a/drivers/staging/comedi/drivers/rtd520.c b/drivers/staging/comedi/drivers/rtd520.c
index 0ae2d6175471..44c8712ed9e0 100644
--- a/drivers/staging/comedi/drivers/rtd520.c
+++ b/drivers/staging/comedi/drivers/rtd520.c
@@ -394,11 +394,8 @@ struct rtd_private {
 	long ai_count;		/* total transfer size (samples) */
 	int xfer_count;		/* # to transfer data. 0->1/2FIFO */
 	int flags;		/* flag event modes */
-
-	unsigned char chan_is_bipolar[RTD_MAX_CHANLIST / 8];	/* bit array */
-
+	DECLARE_BITMAP(chan_is_bipolar, RTD_MAX_CHANLIST);
 	unsigned int ao_readback[2];
-
 	unsigned fifosz;
 };
 
@@ -407,14 +404,6 @@ struct rtd_private {
 #define DMA0_ACTIVE	0x02	/* DMA0 is active */
 #define DMA1_ACTIVE	0x04	/* DMA1 is active */
 
-/* Macros for accessing channel list bit array */
-#define CHAN_ARRAY_TEST(array, index) \
-	(((array)[(index)/8] >> ((index) & 0x7)) & 0x1)
-#define CHAN_ARRAY_SET(array, index) \
-	(((array)[(index)/8] |= 1 << ((index) & 0x7)))
-#define CHAN_ARRAY_CLEAR(array, index) \
-	(((array)[(index)/8] &= ~(1 << ((index) & 0x7))))
-
 /*
   Given a desired period and the clock period (both in ns),
   return the proper counter value (divider-1).
@@ -478,17 +467,17 @@ static unsigned short rtd_convert_chan_gain(struct comedi_device *dev,
 		/* +-5 range */
 		r |= 0x000;
 		r |= (range & 0x7) << 4;
-		CHAN_ARRAY_SET(devpriv->chan_is_bipolar, index);
+		__set_bit(index, devpriv->chan_is_bipolar);
 	} else if (range < board->range_uni10) {
 		/* +-10 range */
 		r |= 0x100;
 		r |= ((range - board->range_bip10) & 0x7) << 4;
-		CHAN_ARRAY_SET(devpriv->chan_is_bipolar, index);
+		__set_bit(index, devpriv->chan_is_bipolar);
 	} else {
 		/* +10 range */
 		r |= 0x200;
 		r |= ((range - board->range_uni10) & 0x7) << 4;
-		CHAN_ARRAY_CLEAR(devpriv->chan_is_bipolar, index);
+		__clear_bit(index, devpriv->chan_is_bipolar);
 	}
 
 	switch (aref) {
@@ -619,7 +608,7 @@ static int rtd_ai_rinsn(struct comedi_device *dev,
 		d = readw(devpriv->las1 + LAS1_ADC_FIFO);
 		/*printk ("rtd520: Got 0x%x after %d usec\n", d, ii+1); */
 		d = d >> 3;	/* low 3 bits are marker lines */
-		if (CHAN_ARRAY_TEST(devpriv->chan_is_bipolar, 0))
+		if (test_bit(0, devpriv->chan_is_bipolar))
 			/* convert to comedi unsigned data */
 			d = comedi_offset_munge(s, d);
 		data[n] = d & s->maxdata;
@@ -651,8 +640,7 @@ static int ai_read_n(struct comedi_device *dev, struct comedi_subdevice *s,
 
 		d = readw(devpriv->las1 + LAS1_ADC_FIFO);
 		d = d >> 3;	/* low 3 bits are marker lines */
-		if (CHAN_ARRAY_TEST(devpriv->chan_is_bipolar,
-				    s->async->cur_chan))
+		if (test_bit(s->async->cur_chan, devpriv->chan_is_bipolar))
 			/* convert to comedi unsigned data */
 			d = comedi_offset_munge(s, d);
 		d &= s->maxdata;
@@ -681,8 +669,7 @@ static int ai_read_dregs(struct comedi_device *dev, struct comedi_subdevice *s)
 		}
 
 		d = d >> 3;	/* low 3 bits are marker lines */
-		if (CHAN_ARRAY_TEST(devpriv->chan_is_bipolar,
-				    s->async->cur_chan))
+		if (test_bit(s->async->cur_chan, devpriv->chan_is_bipolar))
 			/* convert to comedi unsigned data */
 			d = comedi_offset_munge(s, d);
 		d &= s->maxdata;
-- 
cgit 


From 6c661434f98dfe0ad301a4910b6209b0541c0239 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Fri, 18 Oct 2013 14:40:49 +0100
Subject: staging: comedi: s626: clock polarity and direction are the same

When setting up an encoder channel, the setup value includes a polarity
and direction, but these are the same bit of the setup value:

  S626_CLKPOL_POS = S626_CNTDIR_UP = 0

  S626_CLKPOL_NEG = S626_CNTDIR_DOWN = 1

In the construction of the setup value, both the CLKPOL and the CNTDIR
constants are shifted by the same amount `S626_BF_CLKPOL`.  Only the
following combinations are set up currently (this may change if user
configuration of the encoder is implemented properly):

  (S626_CLKPOL_POS << S626_BF_CLKPOL)

  (S626_CLKPOL_POS << S626_BF_CLKPOL) |
  (S626_CNTDIR_UP << S626_BF_CLKPOL)

  (S626_CLKPOL_POS << S626_BF_CLKPOL) |
  (S626_CNTDIR_DOWN << S626_BF_CLKPOL)

The first two are used in "counter" mode and is equivalent to:

  (S626_CLKPOL_POS << S626_BF_CLKPOL)

The last one is used in "timer" mode and is equivalent to:

  (S626_CNTDIR_DOWN << S626_BF_CLKPOL)

Use the shorter equivalents.  The comments in "s626.h" indicate that the
'CLKPOL' constants make more sense for the "counter" mode (when the
encoders operate as up/down counters) and the 'CNTDIR' constants make
more sense for the "timer" mode.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index d9aba7ce862d..dd138a095624 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -2036,8 +2036,6 @@ static void s626_timer_load(struct comedi_device *dev,
 		(S626_INDXSRC_SOFT << S626_BF_INDXSRC) |
 		/* Operating mode is Timer. */
 		(S626_CLKSRC_TIMER << S626_BF_CLKSRC) |
-		/* Active high clock. */
-		(S626_CLKPOL_POS << S626_BF_CLKPOL) |
 		/* Count direction is Down. */
 		(S626_CNTDIR_DOWN << S626_BF_CLKPOL) |
 		/* Clock multiplier is 1x. */
@@ -2528,8 +2526,6 @@ static void s626_counters_init(struct comedi_device *dev)
 		(S626_CLKSRC_COUNTER << S626_BF_CLKSRC) |
 		/* Active high clock. */
 		(S626_CLKPOL_POS << S626_BF_CLKPOL) |
-		/* Count direction is up. */
-		(S626_CNTDIR_UP << S626_BF_CLKPOL) |
 		/* Clock multiplier is 1x. */
 		(S626_CLKMULT_1X << S626_BF_CLKMULT) |
 		/* Enabled by index */
-- 
cgit 


From 2e179e428ce47c3988eead1944b5043de07731ae Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Fri, 18 Oct 2013 14:40:50 +0100
Subject: staging: comedi: s626: specify bitshift for encoder A clock source

When setting the clock source for one of the 'A' encoders to operate in
"counter" mode in `s626_set_mode_a()`, bitshift the clock source value by
`S626_CRABIT_CLKSRC_A` for consistency with the other modes.  This has
no effect on the value since `S626_CRABIT_CLKSRC_A` is 0.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index dd138a095624..770c1d5065c9 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -864,7 +864,7 @@ static void s626_set_mode_a(struct comedi_device *dev,
 		break;
 	default:		/* Counter Mode: */
 		/* Select ENC_C and ENC_D as clock/direction inputs. */
-		cra |= S626_CLKSRC_COUNTER;
+		cra |= S626_CLKSRC_COUNTER << S626_CRABIT_CLKSRC_A;
 		/* Clock polarity is passed through. */
 		cra |= (setup & S626_STDMSK_CLKPOL) <<
 		       (S626_CRABIT_CLKPOL_A - S626_STDBIT_CLKPOL);
-- 
cgit 


From 72938088749fe17c322c60d85f79b41f6142c635 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Fri, 18 Oct 2013 14:40:51 +0100
Subject: staging: comedi: s626: correct a comment in s626_get_mode_b()

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 770c1d5065c9..e7e60aa9ff5a 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -800,7 +800,7 @@ static uint16_t s626_get_mode_b(struct comedi_device *dev,
 			 S626_STDMSK_CLKPOL;
 	} else {
 		/* If Counter mode (ClkSrcB<1> == 0): */
-		/* Indicate Timer mode. */
+		/* Indicate Counter mode. */
 		setup |= S626_CLKSRC_COUNTER << S626_STDBIT_CLKSRC;
 		/* Clock multiplier is passed through. */
 		setup |= (crb >> (S626_CRBBIT_CLKMULT_B -
-- 
cgit 


From 622ec01ab9e19729c43eb994003783cf5094fc09 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Fri, 18 Oct 2013 14:40:52 +0100
Subject: staging: comedi: s626: distinguish counter src from encoder mode

The macros `S626_CLKSRC_COUNTER`, `S626_CLKSRC_TIMER` and
`S626_CLKSRC_EXTENDER` are used logically to set the operating mode of
an encoder channel.  `S626_CLKSRC_COUNTER` (0) is also used as a 2-bit
physical value to set the counter source of an encoder channel to
"encoder".

Rename the macros to `S626_ENCMODE_COUNTER`, `S626_ENCMODE_TIMER` and
`S626_ENCMODE_EXTENDER` and rename some other macros and (unused)
functions relating to the encoder mode for consistency.

Define new macros to specify the physical counter source values for the
'CRA' register and rename the corresponding bitshift and mask macros
accordingly.  The physical values for the counter source are:

  S626_CNTSRC_ENCODER = 0      // encoder
  S626_CNTSRC_DIGIN = 1        // digital inputs
  S626_CNTSRC_SYSCLK = 2       // system clock up
  S626_CNTSRC_SYSCLK_DOWN = 3  // system clock down

Also use the `S626_CNTSRC_SYSCLK` value as a bitmask (bit 1) to indicate
either of the system clock values, with the direction (bit 0) indicated
separately in this case.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 100 +++++++++++++++++-----------------
 drivers/staging/comedi/drivers/s626.h |  28 ++++++----
 2 files changed, 67 insertions(+), 61 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index e7e60aa9ff5a..92062ed0ac20 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -720,19 +720,19 @@ static uint16_t s626_get_mode_a(struct comedi_device *dev,
 		 S626_STDMSK_CLKENAB);		/* ClkEnab  = ClkEnabA. */
 
 	/* Adjust mode-dependent parameters. */
-	if (cra & (2 << S626_CRABIT_CLKSRC_A)) {
-		/* Timer mode (ClkSrcA<1> == 1): */
+	if (cra & (S626_CNTSRC_SYSCLK << S626_CRABIT_CNTSRC_A)) {
+		/* Timer mode (CntSrcA<1> == 1): */
 		/* Indicate Timer mode. */
-		setup |= S626_CLKSRC_TIMER << S626_STDBIT_CLKSRC;
-		/* Set ClkPol to indicate count direction (ClkSrcA<0>). */
-		setup |= (cra << (S626_STDBIT_CLKPOL - S626_CRABIT_CLKSRC_A)) &
+		setup |= S626_ENCMODE_TIMER << S626_STDBIT_ENCMODE;
+		/* Set ClkPol to indicate count direction (CntSrcA<0>). */
+		setup |= (cra << (S626_STDBIT_CLKPOL - S626_CRABIT_CNTSRC_A)) &
 			 S626_STDMSK_CLKPOL;
 		/* ClkMult must be 1x in Timer mode. */
 		setup |= S626_MULT_X1 << S626_STDBIT_CLKMULT;
 	} else {
-		/* Counter mode (ClkSrcA<1> == 0): */
+		/* Counter mode (CntSrcA<1> == 0): */
 		/* Indicate Counter mode. */
-		setup |= S626_CLKSRC_COUNTER << S626_STDBIT_CLKSRC;
+		setup |= S626_ENCMODE_COUNTER << S626_STDBIT_ENCMODE;
 		/* Pass through ClkPol. */
 		setup |= (cra >> (S626_CRABIT_CLKPOL_A - S626_STDBIT_CLKPOL)) &
 			 S626_STDMSK_CLKPOL;
@@ -783,25 +783,25 @@ static uint16_t s626_get_mode_b(struct comedi_device *dev,
 	    (S626_MULT_X0 << S626_CRBBIT_CLKMULT_B)) {
 		/* Extender mode (ClkMultB == S626_MULT_X0): */
 		/* Indicate Extender mode. */
-		setup |= S626_CLKSRC_EXTENDER << S626_STDBIT_CLKSRC;
+		setup |= S626_ENCMODE_EXTENDER << S626_STDBIT_ENCMODE;
 		/* Indicate multiplier is 1x. */
 		setup |= S626_MULT_X1 << S626_STDBIT_CLKMULT;
-		/* Set ClkPol equal to Timer count direction (ClkSrcB<0>). */
-		setup |= (cra >> (S626_CRABIT_CLKSRC_B - S626_STDBIT_CLKPOL)) &
+		/* Set ClkPol equal to Timer count direction (CntSrcB<0>). */
+		setup |= (cra >> (S626_CRABIT_CNTSRC_B - S626_STDBIT_CLKPOL)) &
 			 S626_STDMSK_CLKPOL;
-	} else if (cra & (2 << S626_CRABIT_CLKSRC_B)) {
-		/* Timer mode (ClkSrcB<1> == 1): */
+	} else if (cra & (S626_CNTSRC_SYSCLK << S626_CRABIT_CNTSRC_B)) {
+		/* Timer mode (CntSrcB<1> == 1): */
 		/* Indicate Timer mode. */
-		setup |= S626_CLKSRC_TIMER << S626_STDBIT_CLKSRC;
+		setup |= S626_ENCMODE_TIMER << S626_STDBIT_ENCMODE;
 		/* Indicate multiplier is 1x. */
 		setup |= S626_MULT_X1 << S626_STDBIT_CLKMULT;
-		/* Set ClkPol equal to Timer count direction (ClkSrcB<0>). */
-		setup |= (cra >> (S626_CRABIT_CLKSRC_B - S626_STDBIT_CLKPOL)) &
+		/* Set ClkPol equal to Timer count direction (CntSrcB<0>). */
+		setup |= (cra >> (S626_CRABIT_CNTSRC_B - S626_STDBIT_CLKPOL)) &
 			 S626_STDMSK_CLKPOL;
 	} else {
-		/* If Counter mode (ClkSrcB<1> == 0): */
+		/* If Counter mode (CntSrcB<1> == 0): */
 		/* Indicate Counter mode. */
-		setup |= S626_CLKSRC_COUNTER << S626_STDBIT_CLKSRC;
+		setup |= S626_ENCMODE_COUNTER << S626_STDBIT_ENCMODE;
 		/* Clock multiplier is passed through. */
 		setup |= (crb >> (S626_CRBBIT_CLKMULT_B -
 				  S626_STDBIT_CLKMULT)) & S626_STDMSK_CLKMULT;
@@ -847,16 +847,16 @@ static void s626_set_mode_a(struct comedi_device *dev,
 		       (S626_STDBIT_INTSRC - S626_CRABIT_INTSRC_A);
 
 	/* Populate all mode-dependent attributes of CRA & CRB images. */
-	switch ((setup & S626_STDMSK_CLKSRC) >> S626_STDBIT_CLKSRC) {
-	case S626_CLKSRC_EXTENDER: /* Extender Mode: */
+	switch ((setup & S626_STDMSK_ENCMODE) >> S626_STDBIT_ENCMODE) {
+	case S626_ENCMODE_EXTENDER: /* Extender Mode: */
 		/* Force to Timer mode (Extender valid only for B counters). */
-		/* Fall through to case S626_CLKSRC_TIMER: */
-	case S626_CLKSRC_TIMER:	/* Timer Mode: */
-		/* ClkSrcA<1> selects system clock */
-		cra |= 2 << S626_CRABIT_CLKSRC_A;
-		/* Count direction (ClkSrcA<0>) obtained from ClkPol. */
+		/* Fall through to case S626_ENCMODE_TIMER: */
+	case S626_ENCMODE_TIMER:	/* Timer Mode: */
+		/* CntSrcA<1> selects system clock */
+		cra |= S626_CNTSRC_SYSCLK << S626_CRABIT_CNTSRC_A;
+		/* Count direction (CntSrcA<0>) obtained from ClkPol. */
 		cra |= (setup & S626_STDMSK_CLKPOL) >>
-		       (S626_STDBIT_CLKPOL - S626_CRABIT_CLKSRC_A);
+		       (S626_STDBIT_CLKPOL - S626_CRABIT_CNTSRC_A);
 		/* ClkPolA behaves as always-on clock enable. */
 		cra |= 1 << S626_CRABIT_CLKPOL_A;
 		/* ClkMult must be 1x. */
@@ -864,7 +864,7 @@ static void s626_set_mode_a(struct comedi_device *dev,
 		break;
 	default:		/* Counter Mode: */
 		/* Select ENC_C and ENC_D as clock/direction inputs. */
-		cra |= S626_CLKSRC_COUNTER << S626_CRABIT_CLKSRC_A;
+		cra |= S626_CNTSRC_ENCODER << S626_CRABIT_CNTSRC_A;
 		/* Clock polarity is passed through. */
 		cra |= (setup & S626_STDMSK_CLKPOL) <<
 		       (S626_CRABIT_CLKPOL_A - S626_STDBIT_CLKPOL);
@@ -898,7 +898,7 @@ static void s626_set_mode_a(struct comedi_device *dev,
 	 * new counter operating mode.
 	 */
 	s626_debi_replace(dev, k->my_cra,
-			  S626_CRAMSK_INDXSRC_B | S626_CRAMSK_CLKSRC_B, cra);
+			  S626_CRAMSK_INDXSRC_B | S626_CRAMSK_CNTSRC_B, cra);
 	s626_debi_replace(dev, k->my_crb,
 			  ~(S626_CRBMSK_INTCTRL | S626_CRBMSK_CLKENAB_A), crb);
 }
@@ -931,24 +931,24 @@ static void s626_set_mode_b(struct comedi_device *dev,
 		       (S626_STDBIT_INTSRC - S626_CRBBIT_INTSRC_B);
 
 	/* Populate all mode-dependent attributes of CRA & CRB images. */
-	switch ((setup & S626_STDMSK_CLKSRC) >> S626_STDBIT_CLKSRC) {
-	case S626_CLKSRC_TIMER:	/* Timer Mode: */
-		/* ClkSrcB<1> selects system clock */
-		cra |= 2 << S626_CRABIT_CLKSRC_B;
-		/* with direction (ClkSrcB<0>) obtained from ClkPol. */
+	switch ((setup & S626_STDMSK_ENCMODE) >> S626_STDBIT_ENCMODE) {
+	case S626_ENCMODE_TIMER:	/* Timer Mode: */
+		/* CntSrcB<1> selects system clock */
+		cra |= S626_CNTSRC_SYSCLK << S626_CRABIT_CNTSRC_B;
+		/* with direction (CntSrcB<0>) obtained from ClkPol. */
 		cra |= (setup & S626_STDMSK_CLKPOL) <<
-		       (S626_CRABIT_CLKSRC_B - S626_STDBIT_CLKPOL);
+		       (S626_CRABIT_CNTSRC_B - S626_STDBIT_CLKPOL);
 		/* ClkPolB behaves as always-on clock enable. */
 		crb |= 1 << S626_CRBBIT_CLKPOL_B;
 		/* ClkMultB must be 1x. */
 		crb |= S626_MULT_X1 << S626_CRBBIT_CLKMULT_B;
 		break;
-	case S626_CLKSRC_EXTENDER:	/* Extender Mode: */
-		/* ClkSrcB source is OverflowA (same as "timer") */
-		cra |= 2 << S626_CRABIT_CLKSRC_B;
+	case S626_ENCMODE_EXTENDER:	/* Extender Mode: */
+		/* CntSrcB source is OverflowA (same as "timer") */
+		cra |= S626_CNTSRC_SYSCLK << S626_CRABIT_CNTSRC_B;
 		/* with direction obtained from ClkPol. */
 		cra |= (setup & S626_STDMSK_CLKPOL) <<
-		       (S626_CRABIT_CLKSRC_B - S626_STDBIT_CLKPOL);
+		       (S626_CRABIT_CNTSRC_B - S626_STDBIT_CLKPOL);
 		/* ClkPolB controls IndexB -- always set to active. */
 		crb |= 1 << S626_CRBBIT_CLKPOL_B;
 		/* ClkMultB selects OverflowA as the clock source. */
@@ -956,7 +956,7 @@ static void s626_set_mode_b(struct comedi_device *dev,
 		break;
 	default:		/* Counter Mode: */
 		/* Select ENC_C and ENC_D as clock/direction inputs. */
-		cra |= S626_CLKSRC_COUNTER << S626_CRABIT_CLKSRC_B;
+		cra |= S626_CNTSRC_ENCODER << S626_CRABIT_CNTSRC_B;
 		/* ClkPol is passed through. */
 		crb |= (setup & S626_STDMSK_CLKPOL) >>
 		       (S626_STDBIT_CLKPOL - S626_CRBBIT_CLKPOL_B);
@@ -990,7 +990,7 @@ static void s626_set_mode_b(struct comedi_device *dev,
 	 * new counter operating mode.
 	 */
 	s626_debi_replace(dev, k->my_cra,
-			  ~(S626_CRAMSK_INDXSRC_B | S626_CRAMSK_CLKSRC_B), cra);
+			  ~(S626_CRAMSK_INDXSRC_B | S626_CRAMSK_CNTSRC_B), cra);
 	s626_debi_replace(dev, k->my_crb,
 			  S626_CRBMSK_CLKENAB_A | S626_CRBMSK_LATCHSRC, crb);
 }
@@ -1162,19 +1162,19 @@ static uint16_t s626_get_clk_pol(struct comedi_device *dev,
 }
 
 /*
- * Return/set the clock source.
+ * Return/set the encoder mode.
  */
-static void s626_set_clk_src(struct comedi_device *dev,
-			     const struct s626_enc_info *k, uint16_t value)
+static void s626_set_enc_mode(struct comedi_device *dev,
+			      const struct s626_enc_info *k, uint16_t value)
 {
-	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~S626_STDMSK_CLKSRC) |
-			    (value << S626_STDBIT_CLKSRC)), false);
+	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~S626_STDMSK_ENCMODE) |
+			    (value << S626_STDBIT_ENCMODE)), false);
 }
 
-static uint16_t s626_get_clk_src(struct comedi_device *dev,
-				 const struct s626_enc_info *k)
+static uint16_t s626_get_enc_mode(struct comedi_device *dev,
+				  const struct s626_enc_info *k)
 {
-	return (k->get_mode(dev, k) >> S626_STDBIT_CLKSRC) & 3;
+	return (k->get_mode(dev, k) >> S626_STDBIT_ENCMODE) & 3;
 }
 
 /*
@@ -2035,7 +2035,7 @@ static void s626_timer_load(struct comedi_device *dev,
 		/* Disable hardware index. */
 		(S626_INDXSRC_SOFT << S626_BF_INDXSRC) |
 		/* Operating mode is Timer. */
-		(S626_CLKSRC_TIMER << S626_BF_CLKSRC) |
+		(S626_ENCMODE_TIMER << S626_BF_ENCMODE) |
 		/* Count direction is Down. */
 		(S626_CNTDIR_DOWN << S626_BF_CLKPOL) |
 		/* Clock multiplier is 1x. */
@@ -2427,7 +2427,7 @@ static int s626_enc_insn_config(struct comedi_device *dev,
 		/* Disable hardware index. */
 		(S626_INDXSRC_SOFT << S626_BF_INDXSRC) |
 		/* Operating mode is Counter. */
-		(S626_CLKSRC_COUNTER << S626_BF_CLKSRC) |
+		(S626_ENCMODE_COUNTER << S626_BF_ENCMODE) |
 		/* Active high clock. */
 		(S626_CLKPOL_POS << S626_BF_CLKPOL) |
 		/* Clock multiplier is 1x. */
@@ -2523,7 +2523,7 @@ static void s626_counters_init(struct comedi_device *dev)
 		/* Disable hardware index. */
 		(S626_INDXSRC_SOFT << S626_BF_INDXSRC) |
 		/* Operating mode is counter. */
-		(S626_CLKSRC_COUNTER << S626_BF_CLKSRC) |
+		(S626_ENCMODE_COUNTER << S626_BF_ENCMODE) |
 		/* Active high clock. */
 		(S626_CLKPOL_POS << S626_BF_CLKPOL) |
 		/* Clock multiplier is 1x. */
diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h
index 9b6ab0d398d6..5cb30afe476a 100644
--- a/drivers/staging/comedi/drivers/s626.h
+++ b/drivers/staging/comedi/drivers/s626.h
@@ -469,10 +469,16 @@
 #define S626_INDXPOL_POS	0	/* Index input is active high. */
 #define S626_INDXPOL_NEG	1	/* Index input is active low. */
 
-/* ClkSrc values: */
-#define S626_CLKSRC_COUNTER	0	/* Counter mode. */
-#define S626_CLKSRC_TIMER	2	/* Timer mode. */
-#define S626_CLKSRC_EXTENDER	3	/* Extender mode. */
+/* Logical encoder mode values: */
+#define S626_ENCMODE_COUNTER	0	/* Counter mode. */
+#define S626_ENCMODE_TIMER	2	/* Timer mode. */
+#define S626_ENCMODE_EXTENDER	3	/* Extender mode. */
+
+/* Physical CntSrc values (for Counter A source and Counter B source): */
+#define S626_CNTSRC_ENCODER	0	/* Encoder */
+#define S626_CNTSRC_DIGIN	1	/* Digital inputs */
+#define S626_CNTSRC_SYSCLK	2	/* System clock up */
+#define S626_CNTSRC_SYSCLK_DOWN	3	/* System clock down */
 
 /* ClkPol values: */
 #define S626_CLKPOL_POS		0	/* Counter/Extender clock is
@@ -495,7 +501,7 @@
 #define S626_BF_LOADSRC		9	/* Preload trigger. */
 #define S626_BF_INDXSRC		7	/* Index source. */
 #define S626_BF_INDXPOL		6	/* Index polarity. */
-#define S626_BF_CLKSRC		4	/* Clock source. */
+#define S626_BF_ENCMODE		4	/* Encoder mode. */
 #define S626_BF_CLKPOL		3	/* Clock polarity/count direction. */
 #define S626_BF_CLKMULT		1	/* Clock multiplier. */
 #define S626_BF_CLKENAB		0	/* Clock enable. */
@@ -528,14 +534,14 @@
 
 /* Bit field positions in CRA: */
 #define S626_CRABIT_INDXSRC_B	14	/* B index source. */
-#define S626_CRABIT_CLKSRC_B	12	/* B clock source. */
+#define S626_CRABIT_CNTSRC_B	12	/* B counter source. */
 #define S626_CRABIT_INDXPOL_A	11	/* A index polarity. */
 #define S626_CRABIT_LOADSRC_A	 9	/* A preload trigger. */
 #define S626_CRABIT_CLKMULT_A	 7	/* A clock multiplier. */
 #define S626_CRABIT_INTSRC_A	 5	/* A interrupt source. */
 #define S626_CRABIT_CLKPOL_A	 4	/* A clock polarity. */
 #define S626_CRABIT_INDXSRC_A	 2	/* A index source. */
-#define S626_CRABIT_CLKSRC_A	 0	/* A clock source. */
+#define S626_CRABIT_CNTSRC_A	 0	/* A counter source. */
 
 /* Bit field positions in CRB: */
 #define S626_CRBBIT_INTRESETCMD	15	/* Interrupt reset command. */
@@ -553,14 +559,14 @@
 /* Bit field masks for CRA and CRB. */
 
 #define S626_CRAMSK_INDXSRC_B	(3 << S626_CRABIT_INDXSRC_B)
-#define S626_CRAMSK_CLKSRC_B	(3 << S626_CRABIT_CLKSRC_B)
+#define S626_CRAMSK_CNTSRC_B	(3 << S626_CRABIT_CNTSRC_B)
 #define S626_CRAMSK_INDXPOL_A	(1 << S626_CRABIT_INDXPOL_A)
 #define S626_CRAMSK_LOADSRC_A	(3 << S626_CRABIT_LOADSRC_A)
 #define S626_CRAMSK_CLKMULT_A	(3 << S626_CRABIT_CLKMULT_A)
 #define S626_CRAMSK_INTSRC_A	(3 << S626_CRABIT_INTSRC_A)
 #define S626_CRAMSK_CLKPOL_A	(3 << S626_CRABIT_CLKPOL_A)
 #define S626_CRAMSK_INDXSRC_A	(3 << S626_CRABIT_INDXSRC_A)
-#define S626_CRAMSK_CLKSRC_A	(3 << S626_CRABIT_CLKSRC_A)
+#define S626_CRAMSK_CNTSRC_A	(3 << S626_CRABIT_CNTSRC_A)
 
 #define S626_CRBMSK_INTRESETCMD	(1 << S626_CRBBIT_INTRESETCMD)
 #define S626_CRBMSK_INTRESET_B	(1 << S626_CRBBIT_INTRESET_B)
@@ -586,7 +592,7 @@
 #define S626_STDBIT_LOADSRC	 9
 #define S626_STDBIT_INDXSRC	 7
 #define S626_STDBIT_INDXPOL	 6
-#define S626_STDBIT_CLKSRC	 4
+#define S626_STDBIT_ENCMODE	 4
 #define S626_STDBIT_CLKPOL	 3
 #define S626_STDBIT_CLKMULT	 1
 #define S626_STDBIT_CLKENAB	 0
@@ -598,7 +604,7 @@
 #define S626_STDMSK_LOADSRC	(3 << S626_STDBIT_LOADSRC)
 #define S626_STDMSK_INDXSRC	(1 << S626_STDBIT_INDXSRC)
 #define S626_STDMSK_INDXPOL	(1 << S626_STDBIT_INDXPOL)
-#define S626_STDMSK_CLKSRC	(3 << S626_STDBIT_CLKSRC)
+#define S626_STDMSK_ENCMODE	(3 << S626_STDBIT_ENCMODE)
 #define S626_STDMSK_CLKPOL	(1 << S626_STDBIT_CLKPOL)
 #define S626_STDMSK_CLKMULT	(3 << S626_STDBIT_CLKMULT)
 #define S626_STDMSK_CLKENAB	(1 << S626_STDBIT_CLKENAB)
-- 
cgit 


From 9349399333c982396021f861b69355782d4e555e Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Fri, 18 Oct 2013 14:40:53 +0100
Subject: staging: comedi: s626: correct S626_CRAMSK_CLKPOL_A macro (unused)

The counter 'A' clock polarity field in the 'CRA' register is only 1 bit
wide, but the `S626_CRAMSK_CLKPOL_A` macro shows it as 2 bits wide,
which would overlap with the counter 'A' interrupt source field.  This
is harmless as the macro isn't actually used yet, but correct it anyway
as I want to use it!

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h
index 5cb30afe476a..bdecdfbe6099 100644
--- a/drivers/staging/comedi/drivers/s626.h
+++ b/drivers/staging/comedi/drivers/s626.h
@@ -564,7 +564,7 @@
 #define S626_CRAMSK_LOADSRC_A	(3 << S626_CRABIT_LOADSRC_A)
 #define S626_CRAMSK_CLKMULT_A	(3 << S626_CRABIT_CLKMULT_A)
 #define S626_CRAMSK_INTSRC_A	(3 << S626_CRABIT_INTSRC_A)
-#define S626_CRAMSK_CLKPOL_A	(3 << S626_CRABIT_CLKPOL_A)
+#define S626_CRAMSK_CLKPOL_A	(1 << S626_CRABIT_CLKPOL_A)
 #define S626_CRAMSK_INDXSRC_A	(3 << S626_CRABIT_INDXSRC_A)
 #define S626_CRAMSK_CNTSRC_A	(3 << S626_CRABIT_CNTSRC_A)
 
-- 
cgit 


From e0b07b797c8aa820e96f533a9dab33d2e012f563 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Fri, 18 Oct 2013 14:40:54 +0100
Subject: staging: comedi: s626: add missing bits for 'CRB' register

There are some bits in the 'CRB' register not defined in "s626.h".
Three of these are read-only bits that overlay the write-only interrupt
control bits.  Another missing bit controls whether counter 'B' is
cleared when counter 'A' overflows.  Add the missing bit definitions for
completeness.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.h | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h
index bdecdfbe6099..7f38de5f07f5 100644
--- a/drivers/staging/comedi/drivers/s626.h
+++ b/drivers/staging/comedi/drivers/s626.h
@@ -544,13 +544,17 @@
 #define S626_CRABIT_CNTSRC_A	 0	/* A counter source. */
 
 /* Bit field positions in CRB: */
-#define S626_CRBBIT_INTRESETCMD	15	/* Interrupt reset command. */
-#define S626_CRBBIT_INTRESET_B	14	/* B interrupt reset enable. */
-#define S626_CRBBIT_INTRESET_A	13	/* A interrupt reset enable. */
+#define S626_CRBBIT_INTRESETCMD	15	/* (w) Interrupt reset command. */
+#define S626_CRBBIT_CNTDIR_B	15	/* (r) B counter direction. */
+#define S626_CRBBIT_INTRESET_B	14	/* (w) B interrupt reset enable. */
+#define S626_CRBBIT_OVERDO_A	14	/* (r) A overflow routed to dig. out. */
+#define S626_CRBBIT_INTRESET_A	13	/* (w) A interrupt reset enable. */
+#define S626_CRBBIT_OVERDO_B	13	/* (r) B overflow routed to dig. out. */
 #define S626_CRBBIT_CLKENAB_A	12	/* A clock enable. */
 #define S626_CRBBIT_INTSRC_B	10	/* B interrupt source. */
 #define S626_CRBBIT_LATCHSRC	 8	/* A/B latch source. */
 #define S626_CRBBIT_LOADSRC_B	 6	/* B preload trigger. */
+#define S626_CRBBIT_CLEAR_B	 7	/* B cleared when A overflows. */
 #define S626_CRBBIT_CLKMULT_B	 3	/* B clock multiplier. */
 #define S626_CRBBIT_CLKENAB_B	 2	/* B clock enable. */
 #define S626_CRBBIT_INDXPOL_B	 1	/* B index polarity. */
@@ -569,12 +573,16 @@
 #define S626_CRAMSK_CNTSRC_A	(3 << S626_CRABIT_CNTSRC_A)
 
 #define S626_CRBMSK_INTRESETCMD	(1 << S626_CRBBIT_INTRESETCMD)
+#define S626_CRBMSK_CNTDIR_B	(1 << S626_CRBBIT_CNTDIR_B)
 #define S626_CRBMSK_INTRESET_B	(1 << S626_CRBBIT_INTRESET_B)
+#define S626_CRBMSK_OVERDO_A	(1 << S626_CRBBIT_OVERDO_A)
 #define S626_CRBMSK_INTRESET_A	(1 << S626_CRBBIT_INTRESET_A)
+#define S626_CRBMSK_OVERDO_B	(1 << S626_CRBBIT_OVERDO_B)
 #define S626_CRBMSK_CLKENAB_A	(1 << S626_CRBBIT_CLKENAB_A)
 #define S626_CRBMSK_INTSRC_B	(3 << S626_CRBBIT_INTSRC_B)
 #define S626_CRBMSK_LATCHSRC	(3 << S626_CRBBIT_LATCHSRC)
 #define S626_CRBMSK_LOADSRC_B	(3 << S626_CRBBIT_LOADSRC_B)
+#define S626_CRBMSK_CLEAR_B	(1 << S626_CRBBIT_CLEAR_B)
 #define S626_CRBMSK_CLKMULT_B	(3 << S626_CRBBIT_CLKMULT_B)
 #define S626_CRBMSK_CLKENAB_B	(1 << S626_CRBBIT_CLKENAB_B)
 #define S626_CRBMSK_INDXPOL_B	(1 << S626_CRBBIT_INDXPOL_B)
-- 
cgit 


From 03c1a0b89076fac46766b06a3f15ce89663c30fd Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Fri, 18 Oct 2013 14:40:55 +0100
Subject: staging: comedi: s626: bitfield manipulation macros for CRA, CRB and
 setup

Some bits of the 'CRB' register have different functions when read or
written, so add macros to define the read-only parts.

Add macros to define the widths of the bitfields in the 'CRA' and 'CRB'
registers and the standard encoder setup value.

Add macros to construct and extract parts of the 'CRA' and 'CRB'
register values and the standard encoder setup value, along with a
couple of general helper macros for the above.

Redefine the bitfield mask macros for 'CRA', 'CRB' and standard encoder
setup using the above.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.h | 253 ++++++++++++++++++++++++++++------
 1 file changed, 212 insertions(+), 41 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h
index 7f38de5f07f5..f6b68bf1df3e 100644
--- a/drivers/staging/comedi/drivers/s626.h
+++ b/drivers/staging/comedi/drivers/s626.h
@@ -530,7 +530,9 @@
 #define S626_NUM_INDEXSOURCES	2
 #define S626_NUM_LOADTRIGS	4
 
-/* Bit field positions in CRA and CRB counter control registers. */
+/* General macros for manipulating bitfields: */
+#define S626_MAKE(x, w, p)	(((x) & ((1 << (w)) - 1)) << (p))
+#define S626_UNMAKE(v, w, p)	(((v) >> (p)) & ((1 << (w)) - 1))
 
 /* Bit field positions in CRA: */
 #define S626_CRABIT_INDXSRC_B	14	/* B index source. */
@@ -543,6 +545,68 @@
 #define S626_CRABIT_INDXSRC_A	 2	/* A index source. */
 #define S626_CRABIT_CNTSRC_A	 0	/* A counter source. */
 
+/* Bit field widths in CRA: */
+#define S626_CRAWID_INDXSRC_B	2
+#define S626_CRAWID_CNTSRC_B	2
+#define S626_CRAWID_INDXPOL_A	1
+#define S626_CRAWID_LOADSRC_A	2
+#define S626_CRAWID_CLKMULT_A	2
+#define S626_CRAWID_INTSRC_A	2
+#define S626_CRAWID_CLKPOL_A	1
+#define S626_CRAWID_INDXSRC_A	2
+#define S626_CRAWID_CNTSRC_A	2
+
+/* Bit field masks for CRA: */
+#define S626_CRAMSK_INDXSRC_B	S626_SET_CRA_INDXSRC_B(~0)
+#define S626_CRAMSK_CNTSRC_B	S626_SET_CRA_CNTSRC_B(~0)
+#define S626_CRAMSK_INDXPOL_A	S626_SET_CRA_INDXPOL_A(~0)
+#define S626_CRAMSK_LOADSRC_A	S626_SET_CRA_LOADSRC_A(~0)
+#define S626_CRAMSK_CLKMULT_A	S626_SET_CRA_CLKMULT_A(~0)
+#define S626_CRAMSK_INTSRC_A	S626_SET_CRA_INTSRC_A(~0)
+#define S626_CRAMSK_CLKPOL_A	S626_SET_CRA_CLKPOL_A(~0)
+#define S626_CRAMSK_INDXSRC_A	S626_SET_CRA_INDXSRC_A(~0)
+#define S626_CRAMSK_CNTSRC_A	S626_SET_CRA_CNTSRC_A(~0)
+
+/* Construct parts of the CRA value: */
+#define S626_SET_CRA_INDXSRC_B(x)	\
+	S626_MAKE((x), S626_CRAWID_INDXSRC_B, S626_CRABIT_INDXSRC_B)
+#define S626_SET_CRA_CNTSRC_B(x)	\
+	S626_MAKE((x), S626_CRAWID_CNTSRC_B, S626_CRABIT_CNTSRC_B)
+#define S626_SET_CRA_INDXPOL_A(x)	\
+	S626_MAKE((x), S626_CRAWID_INDXPOL_A, S626_CRABIT_INDXPOL_A)
+#define S626_SET_CRA_LOADSRC_A(x)	\
+	S626_MAKE((x), S626_CRAWID_LOADSRC_A, S626_CRABIT_LOADSRC_A)
+#define S626_SET_CRA_CLKMULT_A(x)	\
+	S626_MAKE((x), S626_CRAWID_CLKMULT_A, S626_CRABIT_CLKMULT_A)
+#define S626_SET_CRA_INTSRC_A(x)	\
+	S626_MAKE((x), S626_CRAWID_INTSRC_A, S626_CRABIT_INTSRC_A)
+#define S626_SET_CRA_CLKPOL_A(x)	\
+	S626_MAKE((x), S626_CRAWID_CLKPOL_A, S626_CRABIT_CLKPOL_A)
+#define S626_SET_CRA_INDXSRC_A(x)	\
+	S626_MAKE((x), S626_CRAWID_INDXSRC_A, S626_CRABIT_INDXSRC_A)
+#define S626_SET_CRA_CNTSRC_A(x)	\
+	S626_MAKE((x), S626_CRAWID_CNTSRC_A, S626_CRABIT_CNTSRC_A)
+
+/* Extract parts of the CRA value: */
+#define S626_GET_CRA_INDXSRC_B(v)	\
+	S626_UNMAKE((v), S626_CRAWID_INDXSRC_B, S626_CRABIT_INDXSRC_B)
+#define S626_GET_CRA_CNTSRC_B(v)	\
+	S626_UNMAKE((v), S626_CRAWID_CNTSRC_B, S626_CRABIT_CNTSRC_B)
+#define S626_GET_CRA_INDXPOL_A(v)	\
+	S626_UNMAKE((v), S626_CRAWID_INDXPOL_A, S626_CRABIT_INDXPOL_A)
+#define S626_GET_CRA_LOADSRC_A(v)	\
+	S626_UNMAKE((v), S626_CRAWID_LOADSRC_A, S626_CRABIT_LOADSRC_A)
+#define S626_GET_CRA_CLKMULT_A(v)	\
+	S626_UNMAKE((v), S626_CRAWID_CLKMULT_A, S626_CRABIT_CLKMULT_A)
+#define S626_GET_CRA_INTSRC_A(v)	\
+	S626_UNMAKE((v), S626_CRAWID_INTSRC_A, S626_CRABIT_INTSRC_A)
+#define S626_GET_CRA_CLKPOL_A(v)	\
+	S626_UNMAKE((v), S626_CRAWID_CLKPOL_A, S626_CRABIT_CLKPOL_A)
+#define S626_GET_CRA_INDXSRC_A(v)	\
+	S626_UNMAKE((v), S626_CRAWID_INDXSRC_A, S626_CRABIT_INDXSRC_A)
+#define S626_GET_CRA_CNTSRC_A(v)	\
+	S626_UNMAKE((v), S626_CRAWID_CNTSRC_A, S626_CRABIT_CNTSRC_A)
+
 /* Bit field positions in CRB: */
 #define S626_CRBBIT_INTRESETCMD	15	/* (w) Interrupt reset command. */
 #define S626_CRBBIT_CNTDIR_B	15	/* (r) B counter direction. */
@@ -560,41 +624,98 @@
 #define S626_CRBBIT_INDXPOL_B	 1	/* B index polarity. */
 #define S626_CRBBIT_CLKPOL_B	 0	/* B clock polarity. */
 
-/* Bit field masks for CRA and CRB. */
-
-#define S626_CRAMSK_INDXSRC_B	(3 << S626_CRABIT_INDXSRC_B)
-#define S626_CRAMSK_CNTSRC_B	(3 << S626_CRABIT_CNTSRC_B)
-#define S626_CRAMSK_INDXPOL_A	(1 << S626_CRABIT_INDXPOL_A)
-#define S626_CRAMSK_LOADSRC_A	(3 << S626_CRABIT_LOADSRC_A)
-#define S626_CRAMSK_CLKMULT_A	(3 << S626_CRABIT_CLKMULT_A)
-#define S626_CRAMSK_INTSRC_A	(3 << S626_CRABIT_INTSRC_A)
-#define S626_CRAMSK_CLKPOL_A	(1 << S626_CRABIT_CLKPOL_A)
-#define S626_CRAMSK_INDXSRC_A	(3 << S626_CRABIT_INDXSRC_A)
-#define S626_CRAMSK_CNTSRC_A	(3 << S626_CRABIT_CNTSRC_A)
-
-#define S626_CRBMSK_INTRESETCMD	(1 << S626_CRBBIT_INTRESETCMD)
-#define S626_CRBMSK_CNTDIR_B	(1 << S626_CRBBIT_CNTDIR_B)
-#define S626_CRBMSK_INTRESET_B	(1 << S626_CRBBIT_INTRESET_B)
-#define S626_CRBMSK_OVERDO_A	(1 << S626_CRBBIT_OVERDO_A)
-#define S626_CRBMSK_INTRESET_A	(1 << S626_CRBBIT_INTRESET_A)
-#define S626_CRBMSK_OVERDO_B	(1 << S626_CRBBIT_OVERDO_B)
-#define S626_CRBMSK_CLKENAB_A	(1 << S626_CRBBIT_CLKENAB_A)
-#define S626_CRBMSK_INTSRC_B	(3 << S626_CRBBIT_INTSRC_B)
-#define S626_CRBMSK_LATCHSRC	(3 << S626_CRBBIT_LATCHSRC)
-#define S626_CRBMSK_LOADSRC_B	(3 << S626_CRBBIT_LOADSRC_B)
-#define S626_CRBMSK_CLEAR_B	(1 << S626_CRBBIT_CLEAR_B)
-#define S626_CRBMSK_CLKMULT_B	(3 << S626_CRBBIT_CLKMULT_B)
-#define S626_CRBMSK_CLKENAB_B	(1 << S626_CRBBIT_CLKENAB_B)
-#define S626_CRBMSK_INDXPOL_B	(1 << S626_CRBBIT_INDXPOL_B)
-#define S626_CRBMSK_CLKPOL_B	(1 << S626_CRBBIT_CLKPOL_B)
+/* Bit field widths in CRB: */
+#define S626_CRBWID_INTRESETCMD	1
+#define S626_CRBWID_CNTDIR_B	1
+#define S626_CRBWID_INTRESET_B	1
+#define S626_CRBWID_OVERDO_A	1
+#define S626_CRBWID_INTRESET_A	1
+#define S626_CRBWID_OVERDO_B	1
+#define S626_CRBWID_CLKENAB_A	1
+#define S626_CRBWID_INTSRC_B	2
+#define S626_CRBWID_LATCHSRC	2
+#define S626_CRBWID_LOADSRC_B	2
+#define S626_CRBWID_CLEAR_B	1
+#define S626_CRBWID_CLKMULT_B	2
+#define S626_CRBWID_CLKENAB_B	1
+#define S626_CRBWID_INDXPOL_B	1
+#define S626_CRBWID_CLKPOL_B	1
+
+/* Bit field masks for CRB: */
+#define S626_CRBMSK_INTRESETCMD	S626_SET_CRB_INTRESETCMD(~0)	/* (w) */
+#define S626_CRBMSK_CNTDIR_B	S626_CRBMSK_INTRESETCMD		/* (r) */
+#define S626_CRBMSK_INTRESET_B	S626_SET_CRB_INTRESET_B(~0)	/* (w) */
+#define S626_CRBMSK_OVERDO_A	S626_CRBMSK_INTRESET_B		/* (r) */
+#define S626_CRBMSK_INTRESET_A	S626_SET_CRB_INTRESET_A(~0)	/* (w) */
+#define S626_CRBMSK_OVERDO_B	S626_CRBMSK_INTRESET_A		/* (r) */
+#define S626_CRBMSK_CLKENAB_A	S626_SET_CRB_CLKENAB_A(~0)
+#define S626_CRBMSK_INTSRC_B	S626_SET_CRB_INTSRC_B(~0)
+#define S626_CRBMSK_LATCHSRC	S626_SET_CRB_LATCHSRC(~0)
+#define S626_CRBMSK_LOADSRC_B	S626_SET_CRB_LOADSRC_B(~0)
+#define S626_CRBMSK_CLEAR_B	S626_SET_CRB_CLEAR_B(~0)
+#define S626_CRBMSK_CLKMULT_B	S626_SET_CRB_CLKMULT_B(~0)
+#define S626_CRBMSK_CLKENAB_B	S626_SET_CRB_CLKENAB_B(~0)
+#define S626_CRBMSK_INDXPOL_B	S626_SET_CRB_INDXPOL_B(~0)
+#define S626_CRBMSK_CLKPOL_B	S626_SET_CRB_CLKPOL_B(~0)
 
 /* Interrupt reset control bits. */
 #define S626_CRBMSK_INTCTRL	(S626_CRBMSK_INTRESETCMD | \
 				 S626_CRBMSK_INTRESET_A | \
 				 S626_CRBMSK_INTRESET_B)
 
-/* Bit field positions for standardized SETUP structure. */
-
+/* Construct parts of the CRB value: */
+#define S626_SET_CRB_INTRESETCMD(x)	\
+	S626_MAKE((x), S626_CRBWID_INTRESETCMD, S626_CRBBIT_INTRESETCMD)
+#define S626_SET_CRB_INTRESET_B(x)	\
+	S626_MAKE((x), S626_CRBWID_INTRESET_B, S626_CRBBIT_INTRESET_B)
+#define S626_SET_CRB_INTRESET_A(x)	\
+	S626_MAKE((x), S626_CRBWID_INTRESET_A, S626_CRBBIT_INTRESET_A)
+#define S626_SET_CRB_CLKENAB_A(x)	\
+	S626_MAKE((x), S626_CRBWID_CLKENAB_A, S626_CRBBIT_CLKENAB_A)
+#define S626_SET_CRB_INTSRC_B(x)	\
+	S626_MAKE((x), S626_CRBWID_INTSRC_B, S626_CRBBIT_INTSRC_B)
+#define S626_SET_CRB_LATCHSRC(x)	\
+	S626_MAKE((x), S626_CRBWID_LATCHSRC, S626_CRBBIT_LATCHSRC)
+#define S626_SET_CRB_LOADSRC_B(x)	\
+	S626_MAKE((x), S626_CRBWID_LOADSRC_B, S626_CRBBIT_LOADSRC_B)
+#define S626_SET_CRB_CLEAR_B(x)	\
+	S626_MAKE((x), S626_CRBWID_CLEAR_B, S626_CRBBIT_CLEAR_B)
+#define S626_SET_CRB_CLKMULT_B(x)	\
+	S626_MAKE((x), S626_CRBWID_CLKMULT_B, S626_CRBBIT_CLKMULT_B)
+#define S626_SET_CRB_CLKENAB_B(x)	\
+	S626_MAKE((x), S626_CRBWID_CLKENAB_B, S626_CRBBIT_CLKENAB_B)
+#define S626_SET_CRB_INDXPOL_B(x)	\
+	S626_MAKE((x), S626_CRBWID_INDXPOL_B, S626_CRBBIT_INDXPOL_B)
+#define S626_SET_CRB_CLKPOL_B(x)	\
+	S626_MAKE((x), S626_CRBWID_CLKPOL_B, S626_CRBBIT_CLKPOL_B)
+
+/* Extract parts of the CRB value: */
+#define S626_GET_CRB_CNTDIR_B(v)	\
+	S626_UNMAKE((v), S626_CRBWID_CNTDIR_B, S626_CRBBIT_CNTDIR_B)
+#define S626_GET_CRB_OVERDO_A(v)	\
+	S626_UNMAKE((v), S626_CRBWID_OVERDO_A, S626_CRBBIT_OVERDO_A)
+#define S626_GET_CRB_OVERDO_B(v)	\
+	S626_UNMAKE((v), S626_CRBWID_OVERDO_B, S626_CRBBIT_OVERDO_B)
+#define S626_GET_CRB_CLKENAB_A(v)	\
+	S626_UNMAKE((v), S626_CRBWID_CLKENAB_A, S626_CRBBIT_CLKENAB_A)
+#define S626_GET_CRB_INTSRC_B(v)	\
+	S626_UNMAKE((v), S626_CRBWID_INTSRC_B, S626_CRBBIT_INTSRC_B)
+#define S626_GET_CRB_LATCHSRC(v)	\
+	S626_UNMAKE((v), S626_CRBWID_LATCHSRC, S626_CRBBIT_LATCHSRC)
+#define S626_GET_CRB_LOADSRC_B(v)	\
+	S626_UNMAKE((v), S626_CRBWID_LOADSRC_B, S626_CRBBIT_LOADSRC_B)
+#define S626_GET_CRB_CLEAR_B(v)	\
+	S626_UNMAKE((v), S626_CRBWID_CLEAR_B, S626_CRBBIT_CLEAR_B)
+#define S626_GET_CRB_CLKMULT_B(v)	\
+	S626_UNMAKE((v), S626_CRBWID_CLKMULT_B, S626_CRBBIT_CLKMULT_B)
+#define S626_GET_CRB_CLKENAB_B(v)	\
+	S626_UNMAKE((v), S626_CRBWID_CLKENAB_B, S626_CRBBIT_CLKENAB_B)
+#define S626_GET_CRB_INDXPOL_B(v)	\
+	S626_UNMAKE((v), S626_CRBWID_INDXPOL_B, S626_CRBBIT_INDXPOL_B)
+#define S626_GET_CRB_CLKPOL_B(v)	\
+	S626_UNMAKE((v), S626_CRBWID_CLKPOL_B, S626_CRBBIT_CLKPOL_B)
+
+/* Bit field positions for standardized SETUP structure: */
 #define S626_STDBIT_INTSRC	13
 #define S626_STDBIT_LATCHSRC	11
 #define S626_STDBIT_LOADSRC	 9
@@ -605,16 +726,66 @@
 #define S626_STDBIT_CLKMULT	 1
 #define S626_STDBIT_CLKENAB	 0
 
-/* Bit field masks for standardized SETUP structure. */
-
-#define S626_STDMSK_INTSRC	(3 << S626_STDBIT_INTSRC)
-#define S626_STDMSK_LATCHSRC	(3 << S626_STDBIT_LATCHSRC)
-#define S626_STDMSK_LOADSRC	(3 << S626_STDBIT_LOADSRC)
-#define S626_STDMSK_INDXSRC	(1 << S626_STDBIT_INDXSRC)
-#define S626_STDMSK_INDXPOL	(1 << S626_STDBIT_INDXPOL)
-#define S626_STDMSK_ENCMODE	(3 << S626_STDBIT_ENCMODE)
-#define S626_STDMSK_CLKPOL	(1 << S626_STDBIT_CLKPOL)
-#define S626_STDMSK_CLKMULT	(3 << S626_STDBIT_CLKMULT)
-#define S626_STDMSK_CLKENAB	(1 << S626_STDBIT_CLKENAB)
+/* Bit field widths for standardized SETUP structure: */
+#define S626_STDWID_INTSRC	2
+#define S626_STDWID_LATCHSRC	2
+#define S626_STDWID_LOADSRC	2
+#define S626_STDWID_INDXSRC	1
+#define S626_STDWID_INDXPOL	1
+#define S626_STDWID_ENCMODE	2
+#define S626_STDWID_CLKPOL	1
+#define S626_STDWID_CLKMULT	2
+#define S626_STDWID_CLKENAB	1
+
+/* Bit field masks for standardized SETUP structure: */
+#define S626_STDMSK_INTSRC	S626_SET_STD_INTSRC(~0)
+#define S626_STDMSK_LATCHSRC	S626_SET_STD_LATCHSRC(~0)
+#define S626_STDMSK_LOADSRC	S626_SET_STD_LOADSRC(~0)
+#define S626_STDMSK_INDXSRC	S626_SET_STD_INDXSRC(~0)
+#define S626_STDMSK_INDXPOL	S626_SET_STD_INDXPOL(~0)
+#define S626_STDMSK_ENCMODE	S626_SET_STD_ENCMODE(~0)
+#define S626_STDMSK_CLKPOL	S626_SET_STD_CLKPOL(~0)
+#define S626_STDMSK_CLKMULT	S626_SET_STD_CLKMULT(~0)
+#define S626_STDMSK_CLKENAB	S626_SET_STD_CLKENAB(~0)
+
+/* Construct parts of standardized SETUP structure: */
+#define S626_SET_STD_INTSRC(x)	\
+	S626_MAKE((x), S626_STDWID_INTSRC, S626_STDBIT_INTSRC)
+#define S626_SET_STD_LATCHSRC(x)	\
+	S626_MAKE((x), S626_STDWID_LATCHSRC, S626_STDBIT_LATCHSRC)
+#define S626_SET_STD_LOADSRC(x)	\
+	S626_MAKE((x), S626_STDWID_LOADSRC, S626_STDBIT_LOADSRC)
+#define S626_SET_STD_INDXSRC(x)	\
+	S626_MAKE((x), S626_STDWID_INDXSRC, S626_STDBIT_INDXSRC)
+#define S626_SET_STD_INDXPOL(x)	\
+	S626_MAKE((x), S626_STDWID_INDXPOL, S626_STDBIT_INDXPOL)
+#define S626_SET_STD_ENCMODE(x)	\
+	S626_MAKE((x), S626_STDWID_ENCMODE, S626_STDBIT_ENCMODE)
+#define S626_SET_STD_CLKPOL(x)	\
+	S626_MAKE((x), S626_STDWID_CLKPOL, S626_STDBIT_CLKPOL)
+#define S626_SET_STD_CLKMULT(x)	\
+	S626_MAKE((x), S626_STDWID_CLKMULT, S626_STDBIT_CLKMULT)
+#define S626_SET_STD_CLKENAB(x)	\
+	S626_MAKE((x), S626_STDWID_CLKENAB, S626_STDBIT_CLKENAB)
+
+/* Extract parts of standardized SETUP structure: */
+#define S626_GET_STD_INTSRC(v)	\
+	S626_UNMAKE((v), S626_STDWID_INTSRC, S626_STDBIT_INTSRC)
+#define S626_GET_STD_LATCHSRC(v)	\
+	S626_UNMAKE((v), S626_STDWID_LATCHSRC, S626_STDBIT_LATCHSRC)
+#define S626_GET_STD_LOADSRC(v)	\
+	S626_UNMAKE((v), S626_STDWID_LOADSRC, S626_STDBIT_LOADSRC)
+#define S626_GET_STD_INDXSRC(v)	\
+	S626_UNMAKE((v), S626_STDWID_INDXSRC, S626_STDBIT_INDXSRC)
+#define S626_GET_STD_INDXPOL(v)	\
+	S626_UNMAKE((v), S626_STDWID_INDXPOL, S626_STDBIT_INDXPOL)
+#define S626_GET_STD_ENCMODE(v)	\
+	S626_UNMAKE((v), S626_STDWID_ENCMODE, S626_STDBIT_ENCMODE)
+#define S626_GET_STD_CLKPOL(v)	\
+	S626_UNMAKE((v), S626_STDWID_CLKPOL, S626_STDBIT_CLKPOL)
+#define S626_GET_STD_CLKMULT(v)	\
+	S626_UNMAKE((v), S626_STDWID_CLKMULT, S626_STDBIT_CLKMULT)
+#define S626_GET_STD_CLKENAB(v)	\
+	S626_UNMAKE((v), S626_STDWID_CLKENAB, S626_STDBIT_CLKENAB)
 
 #endif
-- 
cgit 


From 5d8f681f3d14880d5b509eb32a910ba90ef28c36 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 18 Oct 2013 11:13:08 -0400
Subject: USB: EHCI: fix type mismatch in check_intr_schedule

This patch fixes a type mismatch in ehci-hcd caused by commit
b35c5009bbf6 (USB: EHCI: create per-TT bandwidth tables).  The c_maskp
parameter in check_intr_schedule() was changed to point to unsigned
int rather than __hc32, but the prototype declaration wasn't adjusted
accordingly.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-sched.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 7ce5c2a2fe31..fbeb82e552b8 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -794,7 +794,7 @@ static int check_intr_schedule (
 	unsigned		frame,
 	unsigned		uframe,
 	struct ehci_qh		*qh,
-	__hc32			*c_maskp,
+	unsigned		*c_maskp,
 	struct ehci_tt		*tt
 )
 {
-- 
cgit 


From 4a71f242e51767e75c7ecdba890debab2c0dceaf Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 18 Oct 2013 11:15:14 -0400
Subject: USB: EHCI: fix sparse errors

This patch fixes several sparse errors in ehci-hcd introduced by
commit 3d091a6f7039 (USB: EHCI: AMD periodic frame list table quirk).
Although the problem fixed by that commit affects only little-endian
systems, the source code has to use types appropriate for big-endian
too.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-mem.c   | 4 ++--
 drivers/usb/host/ehci-sched.c | 8 +++++---
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/host/ehci-mem.c b/drivers/usb/host/ehci-mem.c
index 52a77734a225..c0fb6a8ae6a3 100644
--- a/drivers/usb/host/ehci-mem.c
+++ b/drivers/usb/host/ehci-mem.c
@@ -224,11 +224,11 @@ static int ehci_mem_init (struct ehci_hcd *ehci, gfp_t flags)
 		hw->hw_next = EHCI_LIST_END(ehci);
 		hw->hw_qtd_next = EHCI_LIST_END(ehci);
 		hw->hw_alt_next = EHCI_LIST_END(ehci);
-		hw->hw_token &= ~QTD_STS_ACTIVE;
 		ehci->dummy->hw = hw;
 
 		for (i = 0; i < ehci->periodic_size; i++)
-			ehci->periodic[i] = ehci->dummy->qh_dma;
+			ehci->periodic[i] = cpu_to_hc32(ehci,
+					ehci->dummy->qh_dma);
 	} else {
 		for (i = 0; i < ehci->periodic_size; i++)
 			ehci->periodic[i] = EHCI_LIST_END(ehci);
diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index fbeb82e552b8..e113fd73aeae 100644
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -103,7 +103,7 @@ static void periodic_unlink (struct ehci_hcd *ehci, unsigned frame, void *ptr)
 		*hw_p = *shadow_next_periodic(ehci, &here,
 				Q_NEXT_TYPE(ehci, *hw_p));
 	else
-		*hw_p = ehci->dummy->qh_dma;
+		*hw_p = cpu_to_hc32(ehci, ehci->dummy->qh_dma);
 }
 
 /*-------------------------------------------------------------------------*/
@@ -2446,7 +2446,8 @@ restart:
 				    q.itd->hw_next != EHCI_LIST_END(ehci))
 					*hw_p = q.itd->hw_next;
 				else
-					*hw_p = ehci->dummy->qh_dma;
+					*hw_p = cpu_to_hc32(ehci,
+							ehci->dummy->qh_dma);
 				type = Q_NEXT_TYPE(ehci, q.itd->hw_next);
 				wmb();
 				modified = itd_complete (ehci, q.itd);
@@ -2481,7 +2482,8 @@ restart:
 				    q.sitd->hw_next != EHCI_LIST_END(ehci))
 					*hw_p = q.sitd->hw_next;
 				else
-					*hw_p = ehci->dummy->qh_dma;
+					*hw_p = cpu_to_hc32(ehci,
+							ehci->dummy->qh_dma);
 				type = Q_NEXT_TYPE(ehci, q.sitd->hw_next);
 				wmb();
 				modified = sitd_complete (ehci, q.sitd);
-- 
cgit 


From 7c71c6e6befd4b234e166f2f40d4430bacc779e6 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 18 Oct 2013 11:16:07 -0400
Subject: USB: OHCI: fix and explain sparse errors

This patch fixes an endian-related error in ohci-hcd (detected by
sparse) and clarifies a comment explaining a peculiar locking
arrangement that sparse warns about.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ohci-hub.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c
index 2347ab83f046..61705a760e7d 100644
--- a/drivers/usb/host/ohci-hub.c
+++ b/drivers/usb/host/ohci-hub.c
@@ -212,10 +212,11 @@ __acquires(ohci->lock)
 	/* Sometimes PCI D3 suspend trashes frame timings ... */
 	periodic_reinit (ohci);
 
-	/* the following code is executed with ohci->lock held and
-	 * irqs disabled if and only if autostopped is true
+	/*
+	 * The following code is executed with ohci->lock held and
+	 * irqs disabled if and only if autostopped is true.  This
+	 * will cause sparse to warn about a "context imbalance".
 	 */
-
 skip_resume:
 	/* interrupts might have been disabled */
 	ohci_writel (ohci, OHCI_INTR_INIT, &ohci->regs->intrenable);
@@ -531,7 +532,7 @@ ohci_hub_descriptor (
 	    temp |= 0x0010;
 	else if (rh & RH_A_OCPM)	/* per-port overcurrent reporting? */
 	    temp |= 0x0008;
-	desc->wHubCharacteristics = (__force __u16)cpu_to_hc16(ohci, temp);
+	desc->wHubCharacteristics = cpu_to_le16(temp);
 
 	/* ports removable, and usb 1.0 legacy PortPwrCtrlMask */
 	rh = roothub_b (ohci);
-- 
cgit 


From 0a56b4fa6844f74976d4bfa4956fa6d606b392ea Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 18 Oct 2013 11:17:21 -0400
Subject: USB: change dev_warn about missing reset-resume to dev_dbg

This patch changes a dev_warn() call in usbcore to dev_dbg().  It's
not necessary to warn about drivers missing a reset-resume callback,
since the reset-resume method is optional.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/driver.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index 689433cdef25..47aade2a5e74 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -1179,8 +1179,8 @@ static int usb_resume_interface(struct usb_device *udev,
 						"reset_resume", status);
 		} else {
 			intf->needs_binding = 1;
-			dev_warn(&intf->dev, "no %s for driver %s?\n",
-					"reset_resume", driver->name);
+			dev_dbg(&intf->dev, "no reset_resume for driver %s?\n",
+					driver->name);
 		}
 	} else {
 		status = driver->resume(intf);
-- 
cgit 


From b8efdafb4005a79ab2305f8af31025d49292d4cf Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 18 Oct 2013 11:18:21 -0400
Subject: USB: EHCI: add check for wakeup/suspend race

hcd-pci.c in usbcore contains a check for wakeup requests racing with
controller suspend.  This check is going to be moved out of usbcore
and into the individual controller drivers, where it can apply to all
platforms, not just PCI.

This patch adds the check to ehci-hcd.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-hcd.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index e66706aa9f0c..e8ba4c44223a 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -1095,6 +1095,14 @@ int ehci_suspend(struct usb_hcd *hcd, bool do_wakeup)
 	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
 	spin_unlock_irq(&ehci->lock);
 
+	synchronize_irq(hcd->irq);
+
+	/* Check for race with a wakeup request */
+	if (do_wakeup && HCD_WAKEUP_PENDING(hcd)) {
+		ehci_resume(hcd, false);
+		return -EBUSY;
+	}
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(ehci_suspend);
-- 
cgit 


From 1c124c9962b4ee6555fd6179ca318c2ad3a30354 Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@rowland.harvard.edu>
Date: Fri, 18 Oct 2013 11:19:18 -0400
Subject: USB: UHCI: check for wakeup/suspend race

hcd-pci.c in usbcore contains a check for wakeup requests racing with
controller suspend.  This check is going to be moved out of usbcore
and into the individual controller drivers, where it can apply to all
platforms, not just PCI.

This patch adds the check to uhci-hcd.  Ironically, none of the
non-PCI platform drivers for uhci-hcd implement suspend/resume.
Nevertheless, this change is needed to accomodate the upcoming change
to usbcore.

The patch also removes an outdated check of the root hub state.  For
one thing, the PM layer has long been quite reliable about suspending
root hubs before controllers.  For another, virtually the same check
is also made in hcd-pci.c; there's no point in repeating it.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/uhci-pci.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/usb/host/uhci-pci.c b/drivers/usb/host/uhci-pci.c
index 8de0da0e6dfc..4cd79888804b 100644
--- a/drivers/usb/host/uhci-pci.c
+++ b/drivers/usb/host/uhci-pci.c
@@ -162,6 +162,8 @@ static void uhci_shutdown(struct pci_dev *pdev)
 
 #ifdef CONFIG_PM
 
+static int uhci_pci_resume(struct usb_hcd *hcd, bool hibernated);
+
 static int uhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
 {
 	struct uhci_hcd *uhci = hcd_to_uhci(hcd);
@@ -174,12 +176,6 @@ static int uhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
 	if (!HCD_HW_ACCESSIBLE(hcd) || uhci->dead)
 		goto done_okay;		/* Already suspended or dead */
 
-	if (uhci->rh_state > UHCI_RH_SUSPENDED) {
-		dev_warn(uhci_dev(uhci), "Root hub isn't suspended!\n");
-		rc = -EBUSY;
-		goto done;
-	}
-
 	/* All PCI host controllers are required to disable IRQ generation
 	 * at the source, so we must turn off PIRQ.
 	 */
@@ -195,8 +191,15 @@ static int uhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
 
 done_okay:
 	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
-done:
 	spin_unlock_irq(&uhci->lock);
+
+	synchronize_irq(hcd->irq);
+
+	/* Check for race with a wakeup request */
+	if (do_wakeup && HCD_WAKEUP_PENDING(hcd)) {
+		uhci_pci_resume(hcd, false);
+		rc = -EBUSY;
+	}
 	return rc;
 }
 
-- 
cgit 


From f7d4ffa923731463848a3e540b4984f6caa9422f Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hartleys@visionengravers.com>
Date: Thu, 17 Oct 2013 13:27:40 -0700
Subject: ARM: ep93xx_defconfig: cleanup ep93xx_defconfig

Generate ep93xx_defconfig by doing:

make ep93xx_defconfig
make savedefconfig
mv defconfig arch/arm/configs/ep93xx_defconfig

No function change. This just refreshes the ep93xx_defconfig to make it
easier and cleaner when adding new entries.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Ryan Mallon <rmallon@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Olof Johansson <olof@lixom.net>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/configs/ep93xx_defconfig | 16 ++--------------
 1 file changed, 2 insertions(+), 14 deletions(-)

diff --git a/arch/arm/configs/ep93xx_defconfig b/arch/arm/configs/ep93xx_defconfig
index 806005a4c4c1..8eccbcbd5217 100644
--- a/arch/arm/configs/ep93xx_defconfig
+++ b/arch/arm/configs/ep93xx_defconfig
@@ -1,15 +1,14 @@
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
-CONFIG_SYSFS_DEPRECATED_V2=y
 CONFIG_EXPERT=y
 CONFIG_SLAB=y
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 CONFIG_MODULE_FORCE_UNLOAD=y
 # CONFIG_BLK_DEV_BSG is not set
+CONFIG_PARTITION_ADVANCED=y
 # CONFIG_IOSCHED_CFQ is not set
 CONFIG_ARCH_EP93XX=y
 CONFIG_CRUNCH=y
@@ -47,11 +46,8 @@ CONFIG_IPV6=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 # CONFIG_FW_LOADER is not set
 CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
 CONFIG_MTD_REDBOOT_PARTS=y
 CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_CFI=y
 CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -67,15 +63,14 @@ CONFIG_SCSI=y
 # CONFIG_SCSI_PROC_FS is not set
 CONFIG_BLK_DEV_SD=y
 CONFIG_NETDEVICES=y
-CONFIG_NET_ETHERNET=y
 CONFIG_EP93XX_ETH=y
 CONFIG_USB_RTL8150=y
 # CONFIG_INPUT is not set
 # CONFIG_SERIO is not set
 # CONFIG_VT is not set
+# CONFIG_LEGACY_PTYS is not set
 CONFIG_SERIAL_AMBA_PL010=y
 CONFIG_SERIAL_AMBA_PL010_CONSOLE=y
-# CONFIG_LEGACY_PTYS is not set
 # CONFIG_HW_RANDOM is not set
 CONFIG_I2C=y
 CONFIG_I2C_CHARDEV=y
@@ -86,7 +81,6 @@ CONFIG_WATCHDOG=y
 CONFIG_EP93XX_WATCHDOG=y
 CONFIG_USB=y
 CONFIG_USB_DEBUG=y
-CONFIG_USB_DEVICEFS=y
 CONFIG_USB_DYNAMIC_MINORS=y
 CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_STORAGE=y
@@ -100,24 +94,18 @@ CONFIG_RTC_DRV_EP93XX=y
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
 # CONFIG_EXT3_FS_XATTR is not set
-CONFIG_INOTIFY=y
 CONFIG_VFAT_FS=y
 CONFIG_TMPFS=y
 CONFIG_JFFS2_FS=y
 CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
 CONFIG_ROOT_NFS=y
-CONFIG_PARTITION_ADVANCED=y
 CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_ISO8859_1=y
 CONFIG_MAGIC_SYSRQ=y
-CONFIG_DEBUG_KERNEL=y
 CONFIG_DEBUG_SLAB=y
 CONFIG_DEBUG_SPINLOCK=y
 CONFIG_DEBUG_MUTEXES=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
 CONFIG_DEBUG_LL=y
 # CONFIG_CRYPTO_ANSI_CPRNG is not set
 CONFIG_LIBCRC32C=y
-- 
cgit 


From f2c28cfc26e53101c39d8052777ea9d465c718e0 Mon Sep 17 00:00:00 2001
From: Alexey Khoroshilov <khoroshilov@ispras.ru>
Date: Sat, 19 Oct 2013 01:49:38 +0400
Subject: USB: wusbcore: fix usb_dev leaks

cbaf_probe() does cbaf->usb_dev = usb_get_dev(interface_to_usbdev(iface)),
but there is no usb_put_dev() anywhere in cbaf.

The patch adds usb_put_dev() to cbaf_disconnect() and to an error path in cbaf_probe().
Also it adds missed usb_put_intf(iface) to the error path.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/cbaf.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/wusbcore/cbaf.c b/drivers/usb/wusbcore/cbaf.c
index 010f99087506..f06ed82e63d1 100644
--- a/drivers/usb/wusbcore/cbaf.c
+++ b/drivers/usb/wusbcore/cbaf.c
@@ -623,6 +623,8 @@ static int cbaf_probe(struct usb_interface *iface,
 
 error_create_group:
 error_check:
+	usb_put_intf(iface);
+	usb_put_dev(cbaf->usb_dev);
 	kfree(cbaf->buffer);
 error_kmalloc_buffer:
 	kfree(cbaf);
@@ -637,6 +639,7 @@ static void cbaf_disconnect(struct usb_interface *iface)
 	sysfs_remove_group(&dev->kobj, &cbaf_dev_attr_group);
 	usb_set_intfdata(iface, NULL);
 	usb_put_intf(iface);
+	usb_put_dev(cbaf->usb_dev);
 	kfree(cbaf->buffer);
 	/* paranoia: clean up crypto keys */
 	kzfree(cbaf);
-- 
cgit 


From 79a9becda8940deb2274b5aa4577c86d52ee7ecb Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Thu, 17 Oct 2013 10:21:36 -0700
Subject: gpiolib: export descriptor-based GPIO interface

This patch exports the gpiod_* family of API functions, a safer
alternative to the legacy GPIO interface. Differences between the gpiod
and legacy gpio APIs are:

- gpio works with integers, whereas gpiod operates on opaque handlers
  which cannot be forged or used before proper acquisition
- gpiod get/set functions are aware of the active low state of a GPIO
- gpio consumers should now include <linux/gpio/consumer.h> to access
  the new interface, whereas chips drivers will use
  <linux/gpio/driver.h>

The legacy gpio API is now built as inline functions on top of gpiod.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpiolib.c        | 422 ++++++++++++++++++++++--------------------
 include/asm-generic/gpio.h    | 222 +++++++---------------
 include/linux/gpio.h          |  11 +-
 include/linux/gpio/consumer.h | 238 ++++++++++++++++++++++++
 include/linux/gpio/driver.h   | 127 +++++++++++++
 5 files changed, 658 insertions(+), 362 deletions(-)
 create mode 100644 include/linux/gpio/consumer.h
 create mode 100644 include/linux/gpio/driver.h

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index d66139dc410d..224abdc4b095 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -16,16 +16,11 @@
 #define CREATE_TRACE_POINTS
 #include <trace/events/gpio.h>
 
-/* Optional implementation infrastructure for GPIO interfaces.
+/* Implementation infrastructure for GPIO interfaces.
  *
- * Platforms may want to use this if they tend to use very many GPIOs
- * that aren't part of a System-On-Chip core; or across I2C/SPI/etc.
- *
- * When kernel footprint or instruction count is an issue, simpler
- * implementations may be preferred.  The GPIO programming interface
- * allows for inlining speed-critical get/set operations for common
- * cases, so that access to SOC-integrated GPIOs can sometimes cost
- * only an instruction or two per bit.
+ * The GPIO programming interface allows for inlining speed-critical
+ * get/set operations for common cases, so that access to SOC-integrated
+ * GPIOs can sometimes cost only an instruction or two per bit.
  */
 
 
@@ -57,7 +52,7 @@ struct gpio_desc {
 #define FLAG_SYSFS	3	/* exported via /sys/class/gpio/control */
 #define FLAG_TRIG_FALL	4	/* trigger on falling edge */
 #define FLAG_TRIG_RISE	5	/* trigger on rising edge */
-#define FLAG_ACTIVE_LOW	6	/* sysfs value has active low */
+#define FLAG_ACTIVE_LOW	6	/* value has active low */
 #define FLAG_OPEN_DRAIN	7	/* Gpio is open drain type */
 #define FLAG_OPEN_SOURCE 8	/* Gpio is open source type */
 #define FLAG_USED_AS_IRQ 9	/* GPIO is connected to an IRQ */
@@ -81,29 +76,8 @@ static LIST_HEAD(gpio_chips);
 static DEFINE_IDR(dirent_idr);
 #endif
 
-/*
- * Internal gpiod_* API using descriptors instead of the integer namespace.
- * Most of this should eventually go public.
- */
 static int gpiod_request(struct gpio_desc *desc, const char *label);
 static void gpiod_free(struct gpio_desc *desc);
-static int gpiod_direction_input(struct gpio_desc *desc);
-static int gpiod_direction_output(struct gpio_desc *desc, int value);
-static int gpiod_get_direction(const struct gpio_desc *desc);
-static int gpiod_set_debounce(struct gpio_desc *desc, unsigned debounce);
-static int gpiod_get_value_cansleep(const struct gpio_desc *desc);
-static void gpiod_set_value_cansleep(struct gpio_desc *desc, int value);
-static int gpiod_get_value(const struct gpio_desc *desc);
-static void gpiod_set_value(struct gpio_desc *desc, int value);
-static int gpiod_cansleep(const struct gpio_desc *desc);
-static int gpiod_to_irq(const struct gpio_desc *desc);
-static int gpiod_lock_as_irq(struct gpio_desc *desc);
-static void gpiod_unlock_as_irq(struct gpio_desc *desc);
-static int gpiod_export(struct gpio_desc *desc, bool direction_may_change);
-static int gpiod_export_link(struct device *dev, const char *name,
-			     struct gpio_desc *desc);
-static int gpiod_sysfs_set_active_low(struct gpio_desc *desc, int value);
-static void gpiod_unexport(struct gpio_desc *desc);
 
 #ifdef CONFIG_DEBUG_FS
 #define gpiod_emerg(desc, fmt, ...)			                \
@@ -157,13 +131,14 @@ static int gpio_chip_hwgpio(const struct gpio_desc *desc)
 /**
  * Convert a GPIO number to its descriptor
  */
-static struct gpio_desc *gpio_to_desc(unsigned gpio)
+struct gpio_desc *gpio_to_desc(unsigned gpio)
 {
 	if (WARN(!gpio_is_valid(gpio), "invalid GPIO %d\n", gpio))
 		return NULL;
 	else
 		return &gpio_desc[gpio];
 }
+EXPORT_SYMBOL_GPL(gpio_to_desc);
 
 /**
  * Convert an offset on a certain chip to a corresponding descriptor
@@ -181,10 +156,11 @@ static struct gpio_desc *gpiochip_offset_to_desc(struct gpio_chip *chip,
  * This should disappear in the future but is needed since we still
  * use GPIO numbers for error messages and sysfs nodes
  */
-static int desc_to_gpio(const struct gpio_desc *desc)
+int desc_to_gpio(const struct gpio_desc *desc)
 {
 	return desc - &gpio_desc[0];
 }
+EXPORT_SYMBOL_GPL(desc_to_gpio);
 
 
 /* Warn when drivers omit gpio_request() calls -- legal but ill-advised
@@ -219,16 +195,15 @@ static int gpio_ensure_requested(struct gpio_desc *desc)
 	return 0;
 }
 
-static struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc)
+/**
+ * gpiod_to_chip - Return the GPIO chip to which a GPIO descriptor belongs
+ * @desc:	descriptor to return the chip of
+ */
+struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc)
 {
 	return desc ? desc->chip : NULL;
 }
-
-/* caller holds gpio_lock *OR* gpio is marked as requested */
-struct gpio_chip *gpio_to_chip(unsigned gpio)
-{
-	return gpiod_to_chip(gpio_to_desc(gpio));
-}
+EXPORT_SYMBOL_GPL(gpiod_to_chip);
 
 /* dynamic allocation of GPIOs, e.g. on a hotplugged device */
 static int gpiochip_find_base(int ngpio)
@@ -254,8 +229,15 @@ static int gpiochip_find_base(int ngpio)
 	}
 }
 
-/* caller ensures gpio is valid and requested, chip->get_direction may sleep  */
-static int gpiod_get_direction(const struct gpio_desc *desc)
+/**
+ * gpiod_get_direction - return the current direction of a GPIO
+ * @desc:	GPIO to get the direction of
+ *
+ * Return GPIOF_DIR_IN or GPIOF_DIR_OUT, or an error code in case of error.
+ *
+ * This function may sleep if gpiod_cansleep() is true.
+ */
+int gpiod_get_direction(const struct gpio_desc *desc)
 {
 	struct gpio_chip	*chip;
 	unsigned		offset;
@@ -281,6 +263,7 @@ static int gpiod_get_direction(const struct gpio_desc *desc)
 	}
 	return status;
 }
+EXPORT_SYMBOL_GPL(gpiod_get_direction);
 
 #ifdef CONFIG_GPIO_SYSFS
 
@@ -365,17 +348,10 @@ static ssize_t gpio_value_show(struct device *dev,
 
 	mutex_lock(&sysfs_lock);
 
-	if (!test_bit(FLAG_EXPORT, &desc->flags)) {
+	if (!test_bit(FLAG_EXPORT, &desc->flags))
 		status = -EIO;
-	} else {
-		int value;
-
-		value = !!gpiod_get_value_cansleep(desc);
-		if (test_bit(FLAG_ACTIVE_LOW, &desc->flags))
-			value = !value;
-
-		status = sprintf(buf, "%d\n", value);
-	}
+	else
+		status = sprintf(buf, "%d\n", gpiod_get_value_cansleep(desc));
 
 	mutex_unlock(&sysfs_lock);
 	return status;
@@ -398,9 +374,7 @@ static ssize_t gpio_value_store(struct device *dev,
 
 		status = kstrtol(buf, 0, &value);
 		if (status == 0) {
-			if (test_bit(FLAG_ACTIVE_LOW, &desc->flags))
-				value = !value;
-			gpiod_set_value_cansleep(desc, value != 0);
+			gpiod_set_value_cansleep(desc, value);
 			status = size;
 		}
 	}
@@ -790,7 +764,7 @@ static struct class gpio_class = {
 
 
 /**
- * gpio_export - export a GPIO through sysfs
+ * gpiod_export - export a GPIO through sysfs
  * @gpio: gpio to make available, already requested
  * @direction_may_change: true if userspace may change gpio direction
  * Context: arch_initcall or later
@@ -804,7 +778,7 @@ static struct class gpio_class = {
  *
  * Returns zero on success, else an error.
  */
-static int gpiod_export(struct gpio_desc *desc, bool direction_may_change)
+int gpiod_export(struct gpio_desc *desc, bool direction_may_change)
 {
 	unsigned long		flags;
 	int			status;
@@ -882,12 +856,7 @@ fail_unlock:
 		 status);
 	return status;
 }
-
-int gpio_export(unsigned gpio, bool direction_may_change)
-{
-	return gpiod_export(gpio_to_desc(gpio), direction_may_change);
-}
-EXPORT_SYMBOL_GPL(gpio_export);
+EXPORT_SYMBOL_GPL(gpiod_export);
 
 static int match_export(struct device *dev, const void *data)
 {
@@ -895,7 +864,7 @@ static int match_export(struct device *dev, const void *data)
 }
 
 /**
- * gpio_export_link - create a sysfs link to an exported GPIO node
+ * gpiod_export_link - create a sysfs link to an exported GPIO node
  * @dev: device under which to create symlink
  * @name: name of the symlink
  * @gpio: gpio to create symlink to, already exported
@@ -905,8 +874,8 @@ static int match_export(struct device *dev, const void *data)
  *
  * Returns zero on success, else an error.
  */
-static int gpiod_export_link(struct device *dev, const char *name,
-			     struct gpio_desc *desc)
+int gpiod_export_link(struct device *dev, const char *name,
+		      struct gpio_desc *desc)
 {
 	int			status = -EINVAL;
 
@@ -937,15 +906,10 @@ static int gpiod_export_link(struct device *dev, const char *name,
 
 	return status;
 }
-
-int gpio_export_link(struct device *dev, const char *name, unsigned gpio)
-{
-	return gpiod_export_link(dev, name, gpio_to_desc(gpio));
-}
-EXPORT_SYMBOL_GPL(gpio_export_link);
+EXPORT_SYMBOL_GPL(gpiod_export_link);
 
 /**
- * gpio_sysfs_set_active_low - set the polarity of gpio sysfs value
+ * gpiod_sysfs_set_active_low - set the polarity of gpio sysfs value
  * @gpio: gpio to change
  * @value: non-zero to use active low, i.e. inverted values
  *
@@ -956,7 +920,7 @@ EXPORT_SYMBOL_GPL(gpio_export_link);
  *
  * Returns zero on success, else an error.
  */
-static int gpiod_sysfs_set_active_low(struct gpio_desc *desc, int value)
+int gpiod_sysfs_set_active_low(struct gpio_desc *desc, int value)
 {
 	struct device		*dev = NULL;
 	int			status = -EINVAL;
@@ -987,20 +951,15 @@ unlock:
 
 	return status;
 }
-
-int gpio_sysfs_set_active_low(unsigned gpio, int value)
-{
-	return gpiod_sysfs_set_active_low(gpio_to_desc(gpio), value);
-}
-EXPORT_SYMBOL_GPL(gpio_sysfs_set_active_low);
+EXPORT_SYMBOL_GPL(gpiod_sysfs_set_active_low);
 
 /**
- * gpio_unexport - reverse effect of gpio_export()
+ * gpiod_unexport - reverse effect of gpio_export()
  * @gpio: gpio to make unavailable
  *
  * This is implicit on gpio_free().
  */
-static void gpiod_unexport(struct gpio_desc *desc)
+void gpiod_unexport(struct gpio_desc *desc)
 {
 	int			status = 0;
 	struct device		*dev = NULL;
@@ -1033,12 +992,7 @@ static void gpiod_unexport(struct gpio_desc *desc)
 		pr_debug("%s: gpio%d status %d\n", __func__, desc_to_gpio(desc),
 			 status);
 }
-
-void gpio_unexport(unsigned gpio)
-{
-	gpiod_unexport(gpio_to_desc(gpio));
-}
-EXPORT_SYMBOL_GPL(gpio_unexport);
+EXPORT_SYMBOL_GPL(gpiod_unexport);
 
 static int gpiochip_export(struct gpio_chip *chip)
 {
@@ -1145,27 +1099,6 @@ static inline void gpiochip_unexport(struct gpio_chip *chip)
 {
 }
 
-static inline int gpiod_export(struct gpio_desc *desc,
-			       bool direction_may_change)
-{
-	return -ENOSYS;
-}
-
-static inline int gpiod_export_link(struct device *dev, const char *name,
-				    struct gpio_desc *desc)
-{
-	return -ENOSYS;
-}
-
-static inline int gpiod_sysfs_set_active_low(struct gpio_desc *desc, int value)
-{
-	return -ENOSYS;
-}
-
-static inline void gpiod_unexport(struct gpio_desc *desc)
-{
-}
-
 #endif /* CONFIG_GPIO_SYSFS */
 
 /*
@@ -1677,7 +1610,16 @@ EXPORT_SYMBOL_GPL(gpiochip_is_requested);
  * rely on gpio_request() having been called beforehand.
  */
 
-static int gpiod_direction_input(struct gpio_desc *desc)
+/**
+ * gpiod_direction_input - set the GPIO direction to input
+ * @desc:	GPIO to set to input
+ *
+ * Set the direction of the passed GPIO to input, such as gpiod_get_value() can
+ * be called safely on it.
+ *
+ * Return 0 in case of success, else an error code.
+ */
+int gpiod_direction_input(struct gpio_desc *desc)
 {
 	unsigned long		flags;
 	struct gpio_chip	*chip;
@@ -1734,14 +1676,19 @@ fail:
 		gpiod_dbg(desc, "%s status %d\n", __func__, status);
 	return status;
 }
+EXPORT_SYMBOL_GPL(gpiod_direction_input);
 
-int gpio_direction_input(unsigned gpio)
-{
-	return gpiod_direction_input(gpio_to_desc(gpio));
-}
-EXPORT_SYMBOL_GPL(gpio_direction_input);
-
-static int gpiod_direction_output(struct gpio_desc *desc, int value)
+/**
+ * gpiod_direction_output - set the GPIO direction to input
+ * @desc:	GPIO to set to output
+ * @value:	initial output value of the GPIO
+ *
+ * Set the direction of the passed GPIO to output, such as gpiod_set_value() can
+ * be called safely on it. The initial value of the output must be specified.
+ *
+ * Return 0 in case of success, else an error code.
+ */
+int gpiod_direction_output(struct gpio_desc *desc, int value)
 {
 	unsigned long		flags;
 	struct gpio_chip	*chip;
@@ -1814,22 +1761,17 @@ fail:
 		gpiod_dbg(desc, "%s: gpio status %d\n", __func__, status);
 	return status;
 }
-
-int gpio_direction_output(unsigned gpio, int value)
-{
-	return gpiod_direction_output(gpio_to_desc(gpio), value);
-}
-EXPORT_SYMBOL_GPL(gpio_direction_output);
+EXPORT_SYMBOL_GPL(gpiod_direction_output);
 
 /**
- * gpio_set_debounce - sets @debounce time for a @gpio
+ * gpiod_set_debounce - sets @debounce time for a @gpio
  * @gpio: the gpio to set debounce time
  * @debounce: debounce time is microseconds
  *
  * returns -ENOTSUPP if the controller does not support setting
  * debounce.
  */
-static int gpiod_set_debounce(struct gpio_desc *desc, unsigned debounce)
+int gpiod_set_debounce(struct gpio_desc *desc, unsigned debounce)
 {
 	unsigned long		flags;
 	struct gpio_chip	*chip;
@@ -1871,12 +1813,19 @@ fail:
 
 	return status;
 }
+EXPORT_SYMBOL_GPL(gpiod_set_debounce);
 
-int gpio_set_debounce(unsigned gpio, unsigned debounce)
+/**
+ * gpiod_is_active_low - test whether a GPIO is active-low or not
+ * @desc: the gpio descriptor to test
+ *
+ * Returns 1 if the GPIO is active-low, 0 otherwise.
+ */
+int gpiod_is_active_low(const struct gpio_desc *desc)
 {
-	return gpiod_set_debounce(gpio_to_desc(gpio), debounce);
+	return test_bit(FLAG_ACTIVE_LOW, &desc->flags);
 }
-EXPORT_SYMBOL_GPL(gpio_set_debounce);
+EXPORT_SYMBOL_GPL(gpiod_is_active_low);
 
 /* I/O calls are only valid after configuration completed; the relevant
  * "is this a valid GPIO" error checks should already have been done.
@@ -1900,7 +1849,7 @@ EXPORT_SYMBOL_GPL(gpio_set_debounce);
  * that the GPIO was actually requested.
  */
 
-static int _gpiod_get_value(const struct gpio_desc *desc)
+static int _gpiod_get_raw_value(const struct gpio_desc *desc)
 {
 	struct gpio_chip	*chip;
 	int value;
@@ -1914,33 +1863,54 @@ static int _gpiod_get_value(const struct gpio_desc *desc)
 }
 
 /**
- * __gpio_get_value() - return a gpio's value
- * @gpio: gpio whose value will be returned
- * Context: any
+ * gpiod_get_raw_value() - return a gpio's raw value
+ * @desc: gpio whose value will be returned
  *
- * This is used directly or indirectly to implement gpio_get_value().
- * It returns the zero or nonzero value provided by the associated
- * gpio_chip.get() method; or zero if no such method is provided.
+ * Return the GPIO's raw value, i.e. the value of the physical line disregarding
+ * its ACTIVE_LOW status.
+ *
+ * This function should be called from contexts where we cannot sleep, and will
+ * complain if the GPIO chip functions potentially sleep.
  */
-static int gpiod_get_value(const struct gpio_desc *desc)
+int gpiod_get_raw_value(const struct gpio_desc *desc)
 {
 	if (!desc)
 		return 0;
 	/* Should be using gpio_get_value_cansleep() */
 	WARN_ON(desc->chip->can_sleep);
-	return _gpiod_get_value(desc);
+	return _gpiod_get_raw_value(desc);
 }
+EXPORT_SYMBOL_GPL(gpiod_get_raw_value);
 
-int __gpio_get_value(unsigned gpio)
+/**
+ * gpiod_get_value() - return a gpio's value
+ * @desc: gpio whose value will be returned
+ *
+ * Return the GPIO's logical value, i.e. taking the ACTIVE_LOW status into
+ * account.
+ *
+ * This function should be called from contexts where we cannot sleep, and will
+ * complain if the GPIO chip functions potentially sleep.
+ */
+int gpiod_get_value(const struct gpio_desc *desc)
 {
-	return gpiod_get_value(gpio_to_desc(gpio));
+	int value;
+	if (!desc)
+		return 0;
+	/* Should be using gpio_get_value_cansleep() */
+	WARN_ON(desc->chip->can_sleep);
+
+	value = _gpiod_get_raw_value(desc);
+	if (test_bit(FLAG_ACTIVE_LOW, &desc->flags))
+		value = !value;
+
+	return value;
 }
-EXPORT_SYMBOL_GPL(__gpio_get_value);
+EXPORT_SYMBOL_GPL(gpiod_get_value);
 
 /*
  *  _gpio_set_open_drain_value() - Set the open drain gpio's value.
- * @gpio: Gpio whose state need to be set.
- * @chip: Gpio chip.
+ * @desc: gpio descriptor whose state need to be set.
  * @value: Non-zero for setting it HIGH otherise it will set to LOW.
  */
 static void _gpio_set_open_drain_value(struct gpio_desc *desc, int value)
@@ -1966,9 +1936,8 @@ static void _gpio_set_open_drain_value(struct gpio_desc *desc, int value)
 }
 
 /*
- *  _gpio_set_open_source() - Set the open source gpio's value.
- * @gpio: Gpio whose state need to be set.
- * @chip: Gpio chip.
+ *  _gpio_set_open_source_value() - Set the open source gpio's value.
+ * @desc: gpio descriptor whose state need to be set.
  * @value: Non-zero for setting it HIGH otherise it will set to LOW.
  */
 static void _gpio_set_open_source_value(struct gpio_desc *desc, int value)
@@ -1993,7 +1962,7 @@ static void _gpio_set_open_source_value(struct gpio_desc *desc, int value)
 			  __func__, err);
 }
 
-static void _gpiod_set_value(struct gpio_desc *desc, int value)
+static void _gpiod_set_raw_value(struct gpio_desc *desc, int value)
 {
 	struct gpio_chip	*chip;
 
@@ -2008,62 +1977,70 @@ static void _gpiod_set_value(struct gpio_desc *desc, int value)
 }
 
 /**
- * __gpio_set_value() - assign a gpio's value
- * @gpio: gpio whose value will be assigned
+ * gpiod_set_raw_value() - assign a gpio's raw value
+ * @desc: gpio whose value will be assigned
  * @value: value to assign
- * Context: any
  *
- * This is used directly or indirectly to implement gpio_set_value().
- * It invokes the associated gpio_chip.set() method.
+ * Set the raw value of the GPIO, i.e. the value of its physical line without
+ * regard for its ACTIVE_LOW status.
+ *
+ * This function should be called from contexts where we cannot sleep, and will
+ * complain if the GPIO chip functions potentially sleep.
  */
-static void gpiod_set_value(struct gpio_desc *desc, int value)
+void gpiod_set_raw_value(struct gpio_desc *desc, int value)
 {
-
 	if (!desc)
 		return;
 	/* Should be using gpio_set_value_cansleep() */
 	WARN_ON(desc->chip->can_sleep);
-	_gpiod_set_value(desc, value);
+	_gpiod_set_raw_value(desc, value);
 }
+EXPORT_SYMBOL_GPL(gpiod_set_raw_value);
 
-void __gpio_set_value(unsigned gpio, int value)
+/**
+ * gpiod_set_value() - assign a gpio's value
+ * @desc: gpio whose value will be assigned
+ * @value: value to assign
+ *
+ * Set the logical value of the GPIO, i.e. taking its ACTIVE_LOW status into
+ * account
+ *
+ * This function should be called from contexts where we cannot sleep, and will
+ * complain if the GPIO chip functions potentially sleep.
+ */
+void gpiod_set_value(struct gpio_desc *desc, int value)
 {
-	return gpiod_set_value(gpio_to_desc(gpio), value);
+	if (!desc)
+		return;
+	/* Should be using gpio_set_value_cansleep() */
+	WARN_ON(desc->chip->can_sleep);
+	if (test_bit(FLAG_ACTIVE_LOW, &desc->flags))
+		value = !value;
+	_gpiod_set_raw_value(desc, value);
 }
-EXPORT_SYMBOL_GPL(__gpio_set_value);
+EXPORT_SYMBOL_GPL(gpiod_set_value);
 
 /**
- * __gpio_cansleep() - report whether gpio value access will sleep
- * @gpio: gpio in question
- * Context: any
+ * gpiod_cansleep() - report whether gpio value access may sleep
+ * @desc: gpio to check
  *
- * This is used directly or indirectly to implement gpio_cansleep().  It
- * returns nonzero if access reading or writing the GPIO value can sleep.
  */
-static int gpiod_cansleep(const struct gpio_desc *desc)
+int gpiod_cansleep(const struct gpio_desc *desc)
 {
 	if (!desc)
 		return 0;
-	/* only call this on GPIOs that are valid! */
 	return desc->chip->can_sleep;
 }
-
-int __gpio_cansleep(unsigned gpio)
-{
-	return gpiod_cansleep(gpio_to_desc(gpio));
-}
-EXPORT_SYMBOL_GPL(__gpio_cansleep);
+EXPORT_SYMBOL_GPL(gpiod_cansleep);
 
 /**
- * __gpio_to_irq() - return the IRQ corresponding to a GPIO
- * @gpio: gpio whose IRQ will be returned (already requested)
- * Context: any
+ * gpiod_to_irq() - return the IRQ corresponding to a GPIO
+ * @desc: gpio whose IRQ will be returned (already requested)
  *
- * This is used directly or indirectly to implement gpio_to_irq().
- * It returns the number of the IRQ signaled by this (input) GPIO,
- * or a negative errno.
+ * Return the IRQ corresponding to the passed GPIO, or an error code in case of
+ * error.
  */
-static int gpiod_to_irq(const struct gpio_desc *desc)
+int gpiod_to_irq(const struct gpio_desc *desc)
 {
 	struct gpio_chip	*chip;
 	int			offset;
@@ -2074,12 +2051,7 @@ static int gpiod_to_irq(const struct gpio_desc *desc)
 	offset = gpio_chip_hwgpio(desc);
 	return chip->to_irq ? chip->to_irq(chip, offset) : -ENXIO;
 }
-
-int __gpio_to_irq(unsigned gpio)
-{
-	return gpiod_to_irq(gpio_to_desc(gpio));
-}
-EXPORT_SYMBOL_GPL(__gpio_to_irq);
+EXPORT_SYMBOL_GPL(gpiod_to_irq);
 
 /**
  * gpiod_lock_as_irq() - lock a GPIO to be used as IRQ
@@ -2091,7 +2063,7 @@ EXPORT_SYMBOL_GPL(__gpio_to_irq);
  * of its irq_chip implementation if the GPIO is known from that
  * code.
  */
-static int gpiod_lock_as_irq(struct gpio_desc *desc)
+int gpiod_lock_as_irq(struct gpio_desc *desc)
 {
 	if (!desc)
 		return -EINVAL;
@@ -2106,6 +2078,7 @@ static int gpiod_lock_as_irq(struct gpio_desc *desc)
 	set_bit(FLAG_USED_AS_IRQ, &desc->flags);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(gpiod_lock_as_irq);
 
 int gpio_lock_as_irq(struct gpio_chip *chip, unsigned int offset)
 {
@@ -2120,13 +2093,14 @@ EXPORT_SYMBOL_GPL(gpio_lock_as_irq);
  * This is used directly by GPIO drivers that want to indicate
  * that a certain GPIO is no longer used exclusively for IRQ.
  */
-static void gpiod_unlock_as_irq(struct gpio_desc *desc)
+void gpiod_unlock_as_irq(struct gpio_desc *desc)
 {
 	if (!desc)
 		return;
 
 	clear_bit(FLAG_USED_AS_IRQ, &desc->flags);
 }
+EXPORT_SYMBOL_GPL(gpiod_unlock_as_irq);
 
 void gpio_unlock_as_irq(struct gpio_chip *chip, unsigned int offset)
 {
@@ -2134,37 +2108,89 @@ void gpio_unlock_as_irq(struct gpio_chip *chip, unsigned int offset)
 }
 EXPORT_SYMBOL_GPL(gpio_unlock_as_irq);
 
-/* There's no value in making it easy to inline GPIO calls that may sleep.
- * Common examples include ones connected to I2C or SPI chips.
+/**
+ * gpiod_get_raw_value_cansleep() - return a gpio's raw value
+ * @desc: gpio whose value will be returned
+ *
+ * Return the GPIO's raw value, i.e. the value of the physical line disregarding
+ * its ACTIVE_LOW status.
+ *
+ * This function is to be called from contexts that can sleep.
  */
-
-static int gpiod_get_value_cansleep(const struct gpio_desc *desc)
+int gpiod_get_raw_value_cansleep(const struct gpio_desc *desc)
 {
 	might_sleep_if(extra_checks);
 	if (!desc)
 		return 0;
-	return _gpiod_get_value(desc);
+	return _gpiod_get_raw_value(desc);
 }
+EXPORT_SYMBOL_GPL(gpiod_get_raw_value_cansleep);
 
-int gpio_get_value_cansleep(unsigned gpio)
+/**
+ * gpiod_get_value_cansleep() - return a gpio's value
+ * @desc: gpio whose value will be returned
+ *
+ * Return the GPIO's logical value, i.e. taking the ACTIVE_LOW status into
+ * account.
+ *
+ * This function is to be called from contexts that can sleep.
+ */
+int gpiod_get_value_cansleep(const struct gpio_desc *desc)
 {
-	return gpiod_get_value_cansleep(gpio_to_desc(gpio));
+	int value;
+
+	might_sleep_if(extra_checks);
+	if (!desc)
+		return 0;
+
+	value = _gpiod_get_raw_value(desc);
+	if (test_bit(FLAG_ACTIVE_LOW, &desc->flags))
+		value = !value;
+
+	return value;
 }
-EXPORT_SYMBOL_GPL(gpio_get_value_cansleep);
+EXPORT_SYMBOL_GPL(gpiod_get_value_cansleep);
 
-static void gpiod_set_value_cansleep(struct gpio_desc *desc, int value)
+/**
+ * gpiod_set_raw_value_cansleep() - assign a gpio's raw value
+ * @desc: gpio whose value will be assigned
+ * @value: value to assign
+ *
+ * Set the raw value of the GPIO, i.e. the value of its physical line without
+ * regard for its ACTIVE_LOW status.
+ *
+ * This function is to be called from contexts that can sleep.
+ */
+void gpiod_set_raw_value_cansleep(struct gpio_desc *desc, int value)
 {
 	might_sleep_if(extra_checks);
 	if (!desc)
 		return;
-	_gpiod_set_value(desc, value);
+	_gpiod_set_raw_value(desc, value);
 }
+EXPORT_SYMBOL_GPL(gpiod_set_raw_value_cansleep);
 
-void gpio_set_value_cansleep(unsigned gpio, int value)
+/**
+ * gpiod_set_value_cansleep() - assign a gpio's value
+ * @desc: gpio whose value will be assigned
+ * @value: value to assign
+ *
+ * Set the logical value of the GPIO, i.e. taking its ACTIVE_LOW status into
+ * account
+ *
+ * This function is to be called from contexts that can sleep.
+ */
+void gpiod_set_value_cansleep(struct gpio_desc *desc, int value)
 {
-	return gpiod_set_value_cansleep(gpio_to_desc(gpio), value);
+	might_sleep_if(extra_checks);
+	if (!desc)
+		return;
+
+	if (test_bit(FLAG_ACTIVE_LOW, &desc->flags))
+		value = !value;
+	_gpiod_set_raw_value(desc, value);
 }
-EXPORT_SYMBOL_GPL(gpio_set_value_cansleep);
+EXPORT_SYMBOL_GPL(gpiod_set_value_cansleep);
 
 #ifdef CONFIG_DEBUG_FS
 
diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index b309a5c0019e..00f8f0a9edcd 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -10,6 +10,8 @@
 #ifdef CONFIG_GPIOLIB
 
 #include <linux/compiler.h>
+#include <linux/gpio/driver.h>
+#include <linux/gpio/consumer.h>
 
 /* Platforms may implement their GPIO interface with library code,
  * at a small performance cost for non-inlined operations and some
@@ -49,122 +51,11 @@ struct module;
 struct device_node;
 struct gpio_desc;
 
-/**
- * struct gpio_chip - abstract a GPIO controller
- * @label: for diagnostics
- * @dev: optional device providing the GPIOs
- * @owner: helps prevent removal of modules exporting active GPIOs
- * @list: links gpio_chips together for traversal
- * @request: optional hook for chip-specific activation, such as
- *	enabling module power and clock; may sleep
- * @free: optional hook for chip-specific deactivation, such as
- *	disabling module power and clock; may sleep
- * @get_direction: returns direction for signal "offset", 0=out, 1=in,
- *	(same as GPIOF_DIR_XXX), or negative error
- * @direction_input: configures signal "offset" as input, or returns error
- * @get: returns value for signal "offset"; for output signals this
- *	returns either the value actually sensed, or zero
- * @direction_output: configures signal "offset" as output, or returns error
- * @set_debounce: optional hook for setting debounce time for specified gpio in
- *      interrupt triggered gpio chips
- * @set: assigns output value for signal "offset"
- * @to_irq: optional hook supporting non-static gpio_to_irq() mappings;
- *	implementation may not sleep
- * @dbg_show: optional routine to show contents in debugfs; default code
- *	will be used when this is omitted, but custom code can show extra
- *	state (such as pullup/pulldown configuration).
- * @base: identifies the first GPIO number handled by this chip; or, if
- *	negative during registration, requests dynamic ID allocation.
- * @ngpio: the number of GPIOs handled by this controller; the last GPIO
- *	handled is (base + ngpio - 1).
- * @desc: array of ngpio descriptors. Private.
- * @can_sleep: flag must be set iff get()/set() methods sleep, as they
- *	must while accessing GPIO expander chips over I2C or SPI
- * @names: if set, must be an array of strings to use as alternative
- *      names for the GPIOs in this chip. Any entry in the array
- *      may be NULL if there is no alias for the GPIO, however the
- *      array must be @ngpio entries long.  A name can include a single printk
- *      format specifier for an unsigned int.  It is substituted by the actual
- *      number of the gpio.
- *
- * A gpio_chip can help platforms abstract various sources of GPIOs so
- * they can all be accessed through a common programing interface.
- * Example sources would be SOC controllers, FPGAs, multifunction
- * chips, dedicated GPIO expanders, and so on.
- *
- * Each chip controls a number of signals, identified in method calls
- * by "offset" values in the range 0..(@ngpio - 1).  When those signals
- * are referenced through calls like gpio_get_value(gpio), the offset
- * is calculated by subtracting @base from the gpio number.
- */
-struct gpio_chip {
-	const char		*label;
-	struct device		*dev;
-	struct module		*owner;
-	struct list_head        list;
-
-	int			(*request)(struct gpio_chip *chip,
-						unsigned offset);
-	void			(*free)(struct gpio_chip *chip,
-						unsigned offset);
-	int			(*get_direction)(struct gpio_chip *chip,
-						unsigned offset);
-	int			(*direction_input)(struct gpio_chip *chip,
-						unsigned offset);
-	int			(*get)(struct gpio_chip *chip,
-						unsigned offset);
-	int			(*direction_output)(struct gpio_chip *chip,
-						unsigned offset, int value);
-	int			(*set_debounce)(struct gpio_chip *chip,
-						unsigned offset, unsigned debounce);
-
-	void			(*set)(struct gpio_chip *chip,
-						unsigned offset, int value);
-
-	int			(*to_irq)(struct gpio_chip *chip,
-						unsigned offset);
-
-	void			(*dbg_show)(struct seq_file *s,
-						struct gpio_chip *chip);
-	int			base;
-	u16			ngpio;
-	struct gpio_desc	*desc;
-	const char		*const *names;
-	unsigned		can_sleep:1;
-	unsigned		exported:1;
-
-#if defined(CONFIG_OF_GPIO)
-	/*
-	 * If CONFIG_OF is enabled, then all GPIO controllers described in the
-	 * device tree automatically may have an OF translation
-	 */
-	struct device_node *of_node;
-	int of_gpio_n_cells;
-	int (*of_xlate)(struct gpio_chip *gc,
-		        const struct of_phandle_args *gpiospec, u32 *flags);
-#endif
-#ifdef CONFIG_PINCTRL
-	/*
-	 * If CONFIG_PINCTRL is enabled, then gpio controllers can optionally
-	 * describe the actual pin range which they serve in an SoC. This
-	 * information would be used by pinctrl subsystem to configure
-	 * corresponding pins for gpio usage.
-	 */
-	struct list_head pin_ranges;
-#endif
-};
-
-extern const char *gpiochip_is_requested(struct gpio_chip *chip,
-			unsigned offset);
-extern struct gpio_chip *gpio_to_chip(unsigned gpio);
-
-/* add/remove chips */
-extern int gpiochip_add(struct gpio_chip *chip);
-extern int __must_check gpiochip_remove(struct gpio_chip *chip);
-extern struct gpio_chip *gpiochip_find(void *data,
-					int (*match)(struct gpio_chip *chip,
-						     void *data));
-
+/* caller holds gpio_lock *OR* gpio is marked as requested */
+static inline struct gpio_chip *gpio_to_chip(unsigned gpio)
+{
+	return gpiod_to_chip(gpio_to_desc(gpio));
+}
 
 /* Always use the library code for GPIO management calls,
  * or when sleeping may be involved.
@@ -172,25 +63,52 @@ extern struct gpio_chip *gpiochip_find(void *data,
 extern int gpio_request(unsigned gpio, const char *label);
 extern void gpio_free(unsigned gpio);
 
-extern int gpio_direction_input(unsigned gpio);
-extern int gpio_direction_output(unsigned gpio, int value);
+static inline int gpio_direction_input(unsigned gpio)
+{
+	return gpiod_direction_input(gpio_to_desc(gpio));
+}
+static inline int gpio_direction_output(unsigned gpio, int value)
+{
+	return gpiod_direction_output(gpio_to_desc(gpio), value);
+}
 
-extern int gpio_set_debounce(unsigned gpio, unsigned debounce);
+static inline int gpio_set_debounce(unsigned gpio, unsigned debounce)
+{
+	return gpiod_set_debounce(gpio_to_desc(gpio), debounce);
+}
 
-extern int gpio_get_value_cansleep(unsigned gpio);
-extern void gpio_set_value_cansleep(unsigned gpio, int value);
+static inline int gpio_get_value_cansleep(unsigned gpio)
+{
+	return gpiod_get_raw_value_cansleep(gpio_to_desc(gpio));
+}
+static inline void gpio_set_value_cansleep(unsigned gpio, int value)
+{
+	return gpiod_set_raw_value_cansleep(gpio_to_desc(gpio), value);
+}
 
 
 /* A platform's <asm/gpio.h> code may want to inline the I/O calls when
  * the GPIO is constant and refers to some always-present controller,
  * giving direct access to chip registers and tight bitbanging loops.
  */
-extern int __gpio_get_value(unsigned gpio);
-extern void __gpio_set_value(unsigned gpio, int value);
+static inline int __gpio_get_value(unsigned gpio)
+{
+	return gpiod_get_raw_value(gpio_to_desc(gpio));
+}
+static inline void __gpio_set_value(unsigned gpio, int value)
+{
+	return gpiod_set_raw_value(gpio_to_desc(gpio), value);
+}
 
-extern int __gpio_cansleep(unsigned gpio);
+static inline int __gpio_cansleep(unsigned gpio)
+{
+	return gpiod_cansleep(gpio_to_desc(gpio));
+}
 
-extern int __gpio_to_irq(unsigned gpio);
+static inline int __gpio_to_irq(unsigned gpio)
+{
+	return gpiod_to_irq(gpio_to_desc(gpio));
+}
 
 extern int gpio_lock_as_irq(struct gpio_chip *chip, unsigned int offset);
 extern void gpio_unlock_as_irq(struct gpio_chip *chip, unsigned int offset);
@@ -199,19 +117,30 @@ extern int gpio_request_one(unsigned gpio, unsigned long flags, const char *labe
 extern int gpio_request_array(const struct gpio *array, size_t num);
 extern void gpio_free_array(const struct gpio *array, size_t num);
 
-#ifdef CONFIG_GPIO_SYSFS
-
 /*
  * A sysfs interface can be exported by individual drivers if they want,
  * but more typically is configured entirely from userspace.
  */
-extern int gpio_export(unsigned gpio, bool direction_may_change);
-extern int gpio_export_link(struct device *dev, const char *name,
-			unsigned gpio);
-extern int gpio_sysfs_set_active_low(unsigned gpio, int value);
-extern void gpio_unexport(unsigned gpio);
+static inline int gpio_export(unsigned gpio, bool direction_may_change)
+{
+	return gpiod_export(gpio_to_desc(gpio), direction_may_change);
+}
 
-#endif	/* CONFIG_GPIO_SYSFS */
+static inline int gpio_export_link(struct device *dev, const char *name,
+				   unsigned gpio)
+{
+	return gpiod_export_link(dev, name, gpio_to_desc(gpio));
+}
+
+static inline int gpio_sysfs_set_active_low(unsigned gpio, int value)
+{
+	return gpiod_sysfs_set_active_low(gpio_to_desc(gpio), value);
+}
+
+static inline void gpio_unexport(unsigned gpio)
+{
+	gpiod_unexport(gpio_to_desc(gpio));
+}
 
 #ifdef CONFIG_PINCTRL
 
@@ -281,31 +210,4 @@ static inline void gpio_set_value_cansleep(unsigned gpio, int value)
 
 #endif /* !CONFIG_GPIOLIB */
 
-#ifndef CONFIG_GPIO_SYSFS
-
-struct device;
-
-/* sysfs support is only available with gpiolib, where it's optional */
-
-static inline int gpio_export(unsigned gpio, bool direction_may_change)
-{
-	return -ENOSYS;
-}
-
-static inline int gpio_export_link(struct device *dev, const char *name,
-				unsigned gpio)
-{
-	return -ENOSYS;
-}
-
-static inline int gpio_sysfs_set_active_low(unsigned gpio, int value)
-{
-	return -ENOSYS;
-}
-
-static inline void gpio_unexport(unsigned gpio)
-{
-}
-#endif	/* CONFIG_GPIO_SYSFS */
-
 #endif /* _ASM_GENERIC_GPIO_H */
diff --git a/include/linux/gpio.h b/include/linux/gpio.h
index a06ec3e85ba3..c691df044458 100644
--- a/include/linux/gpio.h
+++ b/include/linux/gpio.h
@@ -16,14 +16,17 @@
 #define GPIOF_OUT_INIT_LOW	(GPIOF_DIR_OUT | GPIOF_INIT_LOW)
 #define GPIOF_OUT_INIT_HIGH	(GPIOF_DIR_OUT | GPIOF_INIT_HIGH)
 
+/* Gpio pin is active-low */
+#define GPIOF_ACTIVE_LOW        (1 << 2)
+
 /* Gpio pin is open drain */
-#define GPIOF_OPEN_DRAIN	(1 << 2)
+#define GPIOF_OPEN_DRAIN	(1 << 3)
 
 /* Gpio pin is open source */
-#define GPIOF_OPEN_SOURCE	(1 << 3)
+#define GPIOF_OPEN_SOURCE	(1 << 4)
 
-#define GPIOF_EXPORT		(1 << 4)
-#define GPIOF_EXPORT_CHANGEABLE	(1 << 5)
+#define GPIOF_EXPORT		(1 << 5)
+#define GPIOF_EXPORT_CHANGEABLE	(1 << 6)
 #define GPIOF_EXPORT_DIR_FIXED	(GPIOF_EXPORT)
 #define GPIOF_EXPORT_DIR_CHANGEABLE (GPIOF_EXPORT | GPIOF_EXPORT_CHANGEABLE)
 
diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h
new file mode 100644
index 000000000000..2088eb50421c
--- /dev/null
+++ b/include/linux/gpio/consumer.h
@@ -0,0 +1,238 @@
+#ifndef __LINUX_GPIO_CONSUMER_H
+#define __LINUX_GPIO_CONSUMER_H
+
+#include <linux/err.h>
+#include <linux/kernel.h>
+
+#ifdef CONFIG_GPIOLIB
+
+struct device;
+struct gpio_chip;
+
+/**
+ * Opaque descriptor for a GPIO. These are obtained using gpiod_get() and are
+ * preferable to the old integer-based handles.
+ *
+ * Contrary to integers, a pointer to a gpio_desc is guaranteed to be valid
+ * until the GPIO is released.
+ */
+struct gpio_desc;
+
+int gpiod_get_direction(const struct gpio_desc *desc);
+int gpiod_direction_input(struct gpio_desc *desc);
+int gpiod_direction_output(struct gpio_desc *desc, int value);
+
+/* Value get/set from non-sleeping context */
+int gpiod_get_value(const struct gpio_desc *desc);
+void gpiod_set_value(struct gpio_desc *desc, int value);
+int gpiod_get_raw_value(const struct gpio_desc *desc);
+void gpiod_set_raw_value(struct gpio_desc *desc, int value);
+
+/* Value get/set from sleeping context */
+int gpiod_get_value_cansleep(const struct gpio_desc *desc);
+void gpiod_set_value_cansleep(struct gpio_desc *desc, int value);
+int gpiod_get_raw_value_cansleep(const struct gpio_desc *desc);
+void gpiod_set_raw_value_cansleep(struct gpio_desc *desc, int value);
+
+int gpiod_set_debounce(struct gpio_desc *desc, unsigned debounce);
+
+int gpiod_is_active_low(const struct gpio_desc *desc);
+int gpiod_cansleep(const struct gpio_desc *desc);
+
+int gpiod_to_irq(const struct gpio_desc *desc);
+
+/* Convert between the old gpio_ and new gpiod_ interfaces */
+struct gpio_desc *gpio_to_desc(unsigned gpio);
+int desc_to_gpio(const struct gpio_desc *desc);
+struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc);
+
+#else /* CONFIG_GPIOLIB */
+
+static inline struct gpio_desc *__must_check gpiod_get(struct device *dev,
+						       const char *con_id)
+{
+	return ERR_PTR(-ENOSYS);
+}
+static inline struct gpio_desc *__must_check gpiod_get_index(struct device *dev,
+							     const char *con_id,
+							     unsigned int idx)
+{
+	return ERR_PTR(-ENOSYS);
+}
+static inline void gpiod_put(struct gpio_desc *desc)
+{
+	might_sleep();
+
+	/* GPIO can never have been requested */
+	WARN_ON(1);
+}
+
+static inline struct gpio_desc *__must_check devm_gpiod_get(struct device *dev,
+							    const char *con_id)
+{
+	return ERR_PTR(-ENOSYS);
+}
+static inline
+struct gpio_desc *__must_check devm_gpiod_get_index(struct device *dev,
+						    const char *con_id,
+						    unsigned int idx)
+{
+	return ERR_PTR(-ENOSYS);
+}
+static inline void devm_gpiod_put(struct device *dev, struct gpio_desc *desc)
+{
+	might_sleep();
+
+	/* GPIO can never have been requested */
+	WARN_ON(1);
+}
+
+
+static inline int gpiod_get_direction(const struct gpio_desc *desc)
+{
+	/* GPIO can never have been requested */
+	WARN_ON(1);
+	return -ENOSYS;
+}
+static inline int gpiod_direction_input(struct gpio_desc *desc)
+{
+	/* GPIO can never have been requested */
+	WARN_ON(1);
+	return -ENOSYS;
+}
+static inline int gpiod_direction_output(struct gpio_desc *desc, int value)
+{
+	/* GPIO can never have been requested */
+	WARN_ON(1);
+	return -ENOSYS;
+}
+
+
+static inline int gpiod_get_value(const struct gpio_desc *desc)
+{
+	/* GPIO can never have been requested */
+	WARN_ON(1);
+	return 0;
+}
+static inline void gpiod_set_value(struct gpio_desc *desc, int value)
+{
+	/* GPIO can never have been requested */
+	WARN_ON(1);
+}
+static inline int gpiod_get_raw_value(const struct gpio_desc *desc)
+{
+	/* GPIO can never have been requested */
+	WARN_ON(1);
+	return 0;
+}
+static inline void gpiod_set_raw_value(struct gpio_desc *desc, int value)
+{
+	/* GPIO can never have been requested */
+	WARN_ON(1);
+}
+
+static inline int gpiod_get_value_cansleep(const struct gpio_desc *desc)
+{
+	/* GPIO can never have been requested */
+	WARN_ON(1);
+	return 0;
+}
+static inline void gpiod_set_value_cansleep(struct gpio_desc *desc, int value)
+{
+	/* GPIO can never have been requested */
+	WARN_ON(1);
+}
+static inline int gpiod_get_raw_value_cansleep(const struct gpio_desc *desc)
+{
+	/* GPIO can never have been requested */
+	WARN_ON(1);
+	return 0;
+}
+static inline void gpiod_set_raw_value_cansleep(struct gpio_desc *desc,
+						int value)
+{
+	/* GPIO can never have been requested */
+	WARN_ON(1);
+}
+
+static inline int gpiod_set_debounce(struct gpio_desc *desc, unsigned debounce)
+{
+	/* GPIO can never have been requested */
+	WARN_ON(1);
+	return -ENOSYS;
+}
+
+static inline int gpiod_is_active_low(const struct gpio_desc *desc)
+{
+	/* GPIO can never have been requested */
+	WARN_ON(1);
+	return 0;
+}
+static inline int gpiod_cansleep(const struct gpio_desc *desc)
+{
+	/* GPIO can never have been requested */
+	WARN_ON(1);
+	return 0;
+}
+
+static inline int gpiod_to_irq(const struct gpio_desc *desc)
+{
+	/* GPIO can never have been requested */
+	WARN_ON(1);
+	return -EINVAL;
+}
+
+static inline struct gpio_desc *gpio_to_desc(unsigned gpio)
+{
+	return ERR_PTR(-EINVAL);
+}
+static inline int desc_to_gpio(const struct gpio_desc *desc)
+{
+	/* GPIO can never have been requested */
+	WARN_ON(1);
+	return -EINVAL;
+}
+static inline struct gpio_chip *gpiod_to_chip(const struct gpio_desc *desc)
+{
+	/* GPIO can never have been requested */
+	WARN_ON(1);
+	return ERR_PTR(-ENODEV);
+}
+
+
+#endif /* CONFIG_GPIOLIB */
+
+#if IS_ENABLED(CONFIG_GPIOLIB) && IS_ENABLED(CONFIG_GPIO_SYSFS)
+
+int gpiod_export(struct gpio_desc *desc, bool direction_may_change);
+int gpiod_export_link(struct device *dev, const char *name,
+		      struct gpio_desc *desc);
+int gpiod_sysfs_set_active_low(struct gpio_desc *desc, int value);
+void gpiod_unexport(struct gpio_desc *desc);
+
+#else  /* CONFIG_GPIOLIB && CONFIG_GPIO_SYSFS */
+
+static inline int gpiod_export(struct gpio_desc *desc,
+			       bool direction_may_change)
+{
+	return -ENOSYS;
+}
+
+static inline int gpiod_export_link(struct device *dev, const char *name,
+				    struct gpio_desc *desc)
+{
+	return -ENOSYS;
+}
+
+static inline int gpiod_sysfs_set_active_low(struct gpio_desc *desc, int value)
+{
+	return -ENOSYS;
+}
+
+static inline void gpiod_unexport(struct gpio_desc *desc)
+{
+}
+
+#endif /* CONFIG_GPIOLIB && CONFIG_GPIO_SYSFS */
+
+#endif
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
new file mode 100644
index 000000000000..5dc172c72f0f
--- /dev/null
+++ b/include/linux/gpio/driver.h
@@ -0,0 +1,127 @@
+#ifndef __LINUX_GPIO_DRIVER_H
+#define __LINUX_GPIO_DRIVER_H
+
+#include <linux/types.h>
+
+struct device;
+struct gpio_desc;
+
+/**
+ * struct gpio_chip - abstract a GPIO controller
+ * @label: for diagnostics
+ * @dev: optional device providing the GPIOs
+ * @owner: helps prevent removal of modules exporting active GPIOs
+ * @list: links gpio_chips together for traversal
+ * @request: optional hook for chip-specific activation, such as
+ *	enabling module power and clock; may sleep
+ * @free: optional hook for chip-specific deactivation, such as
+ *	disabling module power and clock; may sleep
+ * @get_direction: returns direction for signal "offset", 0=out, 1=in,
+ *	(same as GPIOF_DIR_XXX), or negative error
+ * @direction_input: configures signal "offset" as input, or returns error
+ * @direction_output: configures signal "offset" as output, or returns error
+ * @get: returns value for signal "offset"; for output signals this
+ *	returns either the value actually sensed, or zero
+ * @set: assigns output value for signal "offset"
+ * @set_debounce: optional hook for setting debounce time for specified gpio in
+ *      interrupt triggered gpio chips
+ * @to_irq: optional hook supporting non-static gpio_to_irq() mappings;
+ *	implementation may not sleep
+ * @dbg_show: optional routine to show contents in debugfs; default code
+ *	will be used when this is omitted, but custom code can show extra
+ *	state (such as pullup/pulldown configuration).
+ * @base: identifies the first GPIO number handled by this chip; or, if
+ *	negative during registration, requests dynamic ID allocation.
+ * @ngpio: the number of GPIOs handled by this controller; the last GPIO
+ *	handled is (base + ngpio - 1).
+ * @desc: array of ngpio descriptors. Private.
+ * @can_sleep: flag must be set iff get()/set() methods sleep, as they
+ *	must while accessing GPIO expander chips over I2C or SPI
+ * @names: if set, must be an array of strings to use as alternative
+ *      names for the GPIOs in this chip. Any entry in the array
+ *      may be NULL if there is no alias for the GPIO, however the
+ *      array must be @ngpio entries long.  A name can include a single printk
+ *      format specifier for an unsigned int.  It is substituted by the actual
+ *      number of the gpio.
+ *
+ * A gpio_chip can help platforms abstract various sources of GPIOs so
+ * they can all be accessed through a common programing interface.
+ * Example sources would be SOC controllers, FPGAs, multifunction
+ * chips, dedicated GPIO expanders, and so on.
+ *
+ * Each chip controls a number of signals, identified in method calls
+ * by "offset" values in the range 0..(@ngpio - 1).  When those signals
+ * are referenced through calls like gpio_get_value(gpio), the offset
+ * is calculated by subtracting @base from the gpio number.
+ */
+struct gpio_chip {
+	const char		*label;
+	struct device		*dev;
+	struct module		*owner;
+	struct list_head        list;
+
+	int			(*request)(struct gpio_chip *chip,
+						unsigned offset);
+	void			(*free)(struct gpio_chip *chip,
+						unsigned offset);
+	int			(*get_direction)(struct gpio_chip *chip,
+						unsigned offset);
+	int			(*direction_input)(struct gpio_chip *chip,
+						unsigned offset);
+	int			(*direction_output)(struct gpio_chip *chip,
+						unsigned offset, int value);
+	int			(*get)(struct gpio_chip *chip,
+						unsigned offset);
+	void			(*set)(struct gpio_chip *chip,
+						unsigned offset, int value);
+	int			(*set_debounce)(struct gpio_chip *chip,
+						unsigned offset,
+						unsigned debounce);
+
+	int			(*to_irq)(struct gpio_chip *chip,
+						unsigned offset);
+
+	void			(*dbg_show)(struct seq_file *s,
+						struct gpio_chip *chip);
+	int			base;
+	u16			ngpio;
+	struct gpio_desc	*desc;
+	const char		*const *names;
+	unsigned		can_sleep:1;
+	unsigned		exported:1;
+
+#if defined(CONFIG_OF_GPIO)
+	/*
+	 * If CONFIG_OF is enabled, then all GPIO controllers described in the
+	 * device tree automatically may have an OF translation
+	 */
+	struct device_node *of_node;
+	int of_gpio_n_cells;
+	int (*of_xlate)(struct gpio_chip *gc,
+			const struct of_phandle_args *gpiospec, u32 *flags);
+#endif
+#ifdef CONFIG_PINCTRL
+	/*
+	 * If CONFIG_PINCTRL is enabled, then gpio controllers can optionally
+	 * describe the actual pin range which they serve in an SoC. This
+	 * information would be used by pinctrl subsystem to configure
+	 * corresponding pins for gpio usage.
+	 */
+	struct list_head pin_ranges;
+#endif
+};
+
+extern const char *gpiochip_is_requested(struct gpio_chip *chip,
+			unsigned offset);
+
+/* add/remove chips */
+extern int gpiochip_add(struct gpio_chip *chip);
+extern int __must_check gpiochip_remove(struct gpio_chip *chip);
+extern struct gpio_chip *gpiochip_find(void *data,
+			      int (*match)(struct gpio_chip *chip, void *data));
+
+/* lock/unlock as IRQ */
+int gpiod_lock_as_irq(struct gpio_desc *desc);
+void gpiod_unlock_as_irq(struct gpio_desc *desc);
+
+#endif
-- 
cgit 


From af8b6375a8291fe2cf77707f3edec86b98a999cc Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Thu, 17 Oct 2013 10:21:37 -0700
Subject: gpiolib: port of_ functions to use gpiod

Refactor the of_ functions of gpiolib to use the now public gpiod
interface, and export of_get_named_gpiod_flags() and
of_get_gpiod_flags() functions.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpiolib-of.c | 28 +++++++++++++++++-----------
 include/linux/of_gpio.h   | 29 ++++++++++++++++++++++++-----
 2 files changed, 41 insertions(+), 16 deletions(-)

diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index 0dfaf20e4dad..32a396d891be 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -15,19 +15,21 @@
 #include <linux/errno.h>
 #include <linux/module.h>
 #include <linux/io.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_gpio.h>
 #include <linux/pinctrl/pinctrl.h>
 #include <linux/slab.h>
 
+struct gpio_desc;
+
 /* Private data structure for of_gpiochip_find_and_xlate */
 struct gg_data {
 	enum of_gpio_flags *flags;
 	struct of_phandle_args gpiospec;
 
-	int out_gpio;
+	struct gpio_desc *out_gpio;
 };
 
 /* Private function for resolving node pointer to gpio_chip */
@@ -45,28 +47,31 @@ static int of_gpiochip_find_and_xlate(struct gpio_chip *gc, void *data)
 	if (ret < 0)
 		return false;
 
-	gg_data->out_gpio = ret + gc->base;
+	gg_data->out_gpio = gpio_to_desc(ret + gc->base);
 	return true;
 }
 
 /**
- * of_get_named_gpio_flags() - Get a GPIO number and flags to use with GPIO API
+ * of_get_named_gpiod_flags() - Get a GPIO descriptor and flags for GPIO API
  * @np:		device node to get GPIO from
  * @propname:	property name containing gpio specifier(s)
  * @index:	index of the GPIO
  * @flags:	a flags pointer to fill in
  *
- * Returns GPIO number to use with Linux generic GPIO API, or one of the errno
+ * Returns GPIO descriptor to use with Linux GPIO API, or one of the errno
  * value on the error condition. If @flags is not NULL the function also fills
  * in flags for the GPIO.
  */
-int of_get_named_gpio_flags(struct device_node *np, const char *propname,
-			   int index, enum of_gpio_flags *flags)
+struct gpio_desc *of_get_named_gpiod_flags(struct device_node *np,
+		     const char *propname, int index, enum of_gpio_flags *flags)
 {
 	/* Return -EPROBE_DEFER to support probe() functions to be called
 	 * later when the GPIO actually becomes available
 	 */
-	struct gg_data gg_data = { .flags = flags, .out_gpio = -EPROBE_DEFER };
+	struct gg_data gg_data = {
+		.flags = flags,
+		.out_gpio = ERR_PTR(-EPROBE_DEFER)
+	};
 	int ret;
 
 	/* .of_xlate might decide to not fill in the flags, so clear it. */
@@ -78,16 +83,17 @@ int of_get_named_gpio_flags(struct device_node *np, const char *propname,
 	if (ret) {
 		pr_debug("%s: can't parse gpios property of node '%s[%d]'\n",
 			__func__, np->full_name, index);
-		return ret;
+		return ERR_PTR(ret);
 	}
 
 	gpiochip_find(&gg_data, of_gpiochip_find_and_xlate);
 
 	of_node_put(gg_data.gpiospec.np);
-	pr_debug("%s exited with status %d\n", __func__, gg_data.out_gpio);
+	pr_debug("%s exited with status %d\n", __func__,
+		 PTR_RET(gg_data.out_gpio));
 	return gg_data.out_gpio;
 }
-EXPORT_SYMBOL(of_get_named_gpio_flags);
+EXPORT_SYMBOL(of_get_named_gpiod_flags);
 
 /**
  * of_gpio_simple_xlate - translate gpio_spec to the GPIO number and flags
diff --git a/include/linux/of_gpio.h b/include/linux/of_gpio.h
index a83dc6f5008e..d71f2cc141ae 100644
--- a/include/linux/of_gpio.h
+++ b/include/linux/of_gpio.h
@@ -21,6 +21,7 @@
 #include <linux/of.h>
 
 struct device_node;
+struct gpio_desc;
 
 /*
  * This is Linux-specific flags. By default controllers' and Linux' mapping
@@ -47,7 +48,7 @@ static inline struct of_mm_gpio_chip *to_of_mm_gpio_chip(struct gpio_chip *gc)
 	return container_of(gc, struct of_mm_gpio_chip, gc);
 }
 
-extern int of_get_named_gpio_flags(struct device_node *np,
+extern struct gpio_desc *of_get_named_gpiod_flags(struct device_node *np,
 		const char *list_name, int index, enum of_gpio_flags *flags);
 
 extern int of_mm_gpiochip_add(struct device_node *np,
@@ -62,10 +63,10 @@ extern int of_gpio_simple_xlate(struct gpio_chip *gc,
 #else /* CONFIG_OF_GPIO */
 
 /* Drivers may not strictly depend on the GPIO support, so let them link. */
-static inline int of_get_named_gpio_flags(struct device_node *np,
+static inline struct gpio_desc *of_get_named_gpiod_flags(struct device_node *np,
 		const char *list_name, int index, enum of_gpio_flags *flags)
 {
-	return -ENOSYS;
+	return ERR_PTR(-ENOSYS);
 }
 
 static inline int of_gpio_simple_xlate(struct gpio_chip *gc,
@@ -80,6 +81,18 @@ static inline void of_gpiochip_remove(struct gpio_chip *gc) { }
 
 #endif /* CONFIG_OF_GPIO */
 
+static inline int of_get_named_gpio_flags(struct device_node *np,
+		const char *list_name, int index, enum of_gpio_flags *flags)
+{
+	struct gpio_desc *desc;
+	desc = of_get_named_gpiod_flags(np, list_name, index, flags);
+
+	if (IS_ERR(desc))
+		return PTR_ERR(desc);
+	else
+		return desc_to_gpio(desc);
+}
+
 /**
  * of_gpio_named_count() - Count GPIOs for a device
  * @np:		device node to count GPIOs for
@@ -117,15 +130,21 @@ static inline int of_gpio_count(struct device_node *np)
 }
 
 /**
- * of_get_gpio_flags() - Get a GPIO number and flags to use with GPIO API
+ * of_get_gpiod_flags() - Get a GPIO descriptor and flags to use with GPIO API
  * @np:		device node to get GPIO from
  * @index:	index of the GPIO
  * @flags:	a flags pointer to fill in
  *
- * Returns GPIO number to use with Linux generic GPIO API, or one of the errno
+ * Returns GPIO descriptor to use with Linux generic GPIO API, or a errno
  * value on the error condition. If @flags is not NULL the function also fills
  * in flags for the GPIO.
  */
+static inline struct gpio_desc *of_get_gpiod_flags(struct device_node *np,
+					int index, enum of_gpio_flags *flags)
+{
+	return of_get_named_gpiod_flags(np, "gpios", index, flags);
+}
+
 static inline int of_get_gpio_flags(struct device_node *np, int index,
 		      enum of_gpio_flags *flags)
 {
-- 
cgit 


From bae48da237fcedd7ad09569025483b988635efb7 Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Thu, 17 Oct 2013 10:21:38 -0700
Subject: gpiolib: add gpiod_get() and gpiod_put() functions

Add gpiod_get(), gpiod_get_index() and gpiod_put() functions that
provide safer management of GPIOs.

These functions put the GPIO framework in line with the conventions of
other frameworks in the kernel, and help ensure every GPIO is declared
properly and valid while it is used.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/devres.c         |  83 +++++++++++++++++
 drivers/gpio/gpiolib.c        | 203 ++++++++++++++++++++++++++++++++++++++++++
 include/linux/gpio/consumer.h |  15 ++++
 include/linux/gpio/driver.h   |  56 ++++++++++++
 4 files changed, 357 insertions(+)

diff --git a/drivers/gpio/devres.c b/drivers/gpio/devres.c
index 3e7812f0405e..2caa2571734e 100644
--- a/drivers/gpio/devres.c
+++ b/drivers/gpio/devres.c
@@ -19,6 +19,89 @@
 #include <linux/device.h>
 #include <linux/gfp.h>
 
+static void devm_gpiod_release(struct device *dev, void *res)
+{
+	struct gpio_desc **desc = res;
+
+	gpiod_put(*desc);
+}
+
+static int devm_gpiod_match(struct device *dev, void *res, void *data)
+{
+	struct gpio_desc **this = res, **gpio = data;
+
+	return *this == *gpio;
+}
+
+/**
+ * devm_gpiod_get - Resource-managed gpiod_get()
+ * @dev:	GPIO consumer
+ * @con_id:	function within the GPIO consumer
+ *
+ * Managed gpiod_get(). GPIO descriptors returned from this function are
+ * automatically disposed on driver detach. See gpiod_get() for detailed
+ * information about behavior and return values.
+ */
+struct gpio_desc *__must_check devm_gpiod_get(struct device *dev,
+					      const char *con_id)
+{
+	return devm_gpiod_get_index(dev, con_id, 0);
+}
+EXPORT_SYMBOL(devm_gpiod_get);
+
+/**
+ * devm_gpiod_get_index - Resource-managed gpiod_get_index()
+ * @dev:	GPIO consumer
+ * @con_id:	function within the GPIO consumer
+ * @idx:	index of the GPIO to obtain in the consumer
+ *
+ * Managed gpiod_get_index(). GPIO descriptors returned from this function are
+ * automatically disposed on driver detach. See gpiod_get_index() for detailed
+ * information about behavior and return values.
+ */
+struct gpio_desc *__must_check devm_gpiod_get_index(struct device *dev,
+						    const char *con_id,
+						    unsigned int idx)
+{
+	struct gpio_desc **dr;
+	struct gpio_desc *desc;
+
+	dr = devres_alloc(devm_gpiod_release, sizeof(struct gpiod_desc *),
+			  GFP_KERNEL);
+	if (!dr)
+		return ERR_PTR(-ENOMEM);
+
+	desc = gpiod_get_index(dev, con_id, idx);
+	if (IS_ERR(desc)) {
+		devres_free(dr);
+		return desc;
+	}
+
+	*dr = desc;
+	devres_add(dev, dr);
+
+	return 0;
+}
+EXPORT_SYMBOL(devm_gpiod_get_index);
+
+/**
+ * devm_gpiod_put - Resource-managed gpiod_put()
+ * @desc:	GPIO descriptor to dispose of
+ *
+ * Dispose of a GPIO descriptor obtained with devm_gpiod_get() or
+ * devm_gpiod_get_index(). Normally this function will not be called as the GPIO
+ * will be disposed of by the resource management code.
+ */
+void devm_gpiod_put(struct device *dev, struct gpio_desc *desc)
+{
+	WARN_ON(devres_release(dev, devm_gpiod_release, devm_gpiod_match,
+		&desc));
+}
+EXPORT_SYMBOL(devm_gpiod_put);
+
+
+
+
 static void devm_gpio_release(struct device *dev, void *res)
 {
 	unsigned *gpio = res;
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 224abdc4b095..9263c7b359b7 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -70,6 +70,8 @@ static struct gpio_desc gpio_desc[ARCH_NR_GPIOS];
 
 #define GPIO_OFFSET_VALID(chip, offset) (offset >= 0 && offset < chip->ngpio)
 
+static DEFINE_MUTEX(gpio_lookup_lock);
+static LIST_HEAD(gpio_lookup_list);
 static LIST_HEAD(gpio_chips);
 
 #ifdef CONFIG_GPIO_SYSFS
@@ -2192,6 +2194,207 @@ void gpiod_set_value_cansleep(struct gpio_desc *desc, int value)
 }
 EXPORT_SYMBOL_GPL(gpiod_set_value_cansleep);
 
+/**
+ * gpiod_add_table() - register GPIO device consumers
+ * @table: array of consumers to register
+ * @num: number of consumers in table
+ */
+void gpiod_add_table(struct gpiod_lookup *table, size_t size)
+{
+	mutex_lock(&gpio_lookup_lock);
+
+	while (size--) {
+		list_add_tail(&table->list, &gpio_lookup_list);
+		table++;
+	}
+
+	mutex_unlock(&gpio_lookup_lock);
+}
+
+/*
+ * Caller must have a acquired gpio_lookup_lock
+ */
+static struct gpio_chip *find_chip_by_name(const char *name)
+{
+	struct gpio_chip *chip = NULL;
+
+	list_for_each_entry(chip, &gpio_lookup_list, list) {
+		if (chip->label == NULL)
+			continue;
+		if (!strcmp(chip->label, name))
+			break;
+	}
+
+	return chip;
+}
+
+#ifdef CONFIG_OF
+static struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
+				      unsigned int idx, unsigned long *flags)
+{
+	char prop_name[32]; /* 32 is max size of property name */
+	enum of_gpio_flags of_flags;
+	struct gpio_desc *desc;
+
+	if (con_id)
+		snprintf(prop_name, 32, "%s-gpios", con_id);
+	else
+		snprintf(prop_name, 32, "gpios");
+
+	desc = of_get_named_gpiod_flags(dev->of_node, prop_name, idx,
+					&of_flags);
+
+	if (IS_ERR(desc))
+		return desc;
+
+	if (of_flags & OF_GPIO_ACTIVE_LOW)
+		*flags |= GPIOF_ACTIVE_LOW;
+
+	return desc;
+}
+#else
+static struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
+				      unsigned int idx, unsigned long *flags)
+{
+	return ERR_PTR(-ENODEV);
+}
+#endif
+
+static struct gpio_desc *gpiod_find(struct device *dev, const char *con_id,
+				    unsigned int idx, unsigned long *flags)
+{
+	const char *dev_id = dev ? dev_name(dev) : NULL;
+	struct gpio_desc *desc = ERR_PTR(-ENODEV);
+	unsigned int match, best = 0;
+	struct gpiod_lookup *p;
+
+	mutex_lock(&gpio_lookup_lock);
+
+	list_for_each_entry(p, &gpio_lookup_list, list) {
+		match = 0;
+
+		if (p->dev_id) {
+			if (!dev_id || strcmp(p->dev_id, dev_id))
+				continue;
+
+			match += 2;
+		}
+
+		if (p->con_id) {
+			if (!con_id || strcmp(p->con_id, con_id))
+				continue;
+
+			match += 1;
+		}
+
+		if (p->idx != idx)
+			continue;
+
+		if (match > best) {
+			struct gpio_chip *chip;
+
+			chip = find_chip_by_name(p->chip_label);
+
+			if (!chip) {
+				dev_warn(dev, "cannot find GPIO chip %s\n",
+					 p->chip_label);
+				continue;
+			}
+
+			if (chip->ngpio >= p->chip_hwnum) {
+				dev_warn(dev, "GPIO chip %s has %d GPIOs\n",
+					 chip->label, chip->ngpio);
+				continue;
+			}
+
+			desc = gpio_to_desc(chip->base + p->chip_hwnum);
+			*flags = p->flags;
+
+			if (match != 3)
+				best = match;
+			else
+				break;
+		}
+	}
+
+	mutex_unlock(&gpio_lookup_lock);
+
+	return desc;
+}
+
+/**
+ * gpio_get - obtain a GPIO for a given GPIO function
+ * @dev:	GPIO consumer
+ * @con_id:	function within the GPIO consumer
+ *
+ * Return the GPIO descriptor corresponding to the function con_id of device
+ * dev, or an IS_ERR() condition if an error occured.
+ */
+struct gpio_desc *__must_check gpiod_get(struct device *dev, const char *con_id)
+{
+	return gpiod_get_index(dev, con_id, 0);
+}
+EXPORT_SYMBOL_GPL(gpiod_get);
+
+/**
+ * gpiod_get_index - obtain a GPIO from a multi-index GPIO function
+ * @dev:	GPIO consumer
+ * @con_id:	function within the GPIO consumer
+ * @idx:	index of the GPIO to obtain in the consumer
+ *
+ * This variant of gpiod_get() allows to access GPIOs other than the first
+ * defined one for functions that define several GPIOs.
+ *
+ * Return a valid GPIO descriptor, or an IS_ERR() condition in case of error.
+ */
+struct gpio_desc *__must_check gpiod_get_index(struct device *dev,
+					       const char *con_id,
+					       unsigned int idx)
+{
+	struct gpio_desc *desc;
+	int status;
+	unsigned long flags = 0;
+
+	dev_dbg(dev, "GPIO lookup for consumer %s\n", con_id);
+
+	/* Using device tree? */
+	if (IS_ENABLED(CONFIG_OF) && dev && dev->of_node) {
+		dev_dbg(dev, "using device tree for GPIO lookup\n");
+		desc = of_find_gpio(dev, con_id, idx, &flags);
+	} else {
+		dev_dbg(dev, "using lookup tables for GPIO lookup");
+		desc = gpiod_find(dev, con_id, idx, &flags);
+	}
+
+	if (IS_ERR(desc)) {
+		dev_warn(dev, "lookup for GPIO %s failed\n", con_id);
+		return desc;
+	}
+
+	status = gpiod_request(desc, con_id);
+
+	if (status < 0)
+		return ERR_PTR(status);
+
+	if (flags & GPIOF_ACTIVE_LOW)
+		set_bit(FLAG_ACTIVE_LOW, &desc->flags);
+
+	return desc;
+}
+EXPORT_SYMBOL_GPL(gpiod_get_index);
+
+/**
+ * gpiod_put - dispose of a GPIO descriptor
+ * @desc:	GPIO descriptor to dispose of
+ *
+ * No descriptor can be used after gpiod_put() has been called on it.
+ */
+void gpiod_put(struct gpio_desc *desc)
+{
+	gpiod_free(desc);
+}
+EXPORT_SYMBOL_GPL(gpiod_put);
+
 #ifdef CONFIG_DEBUG_FS
 
 static void gpiolib_dbg_show(struct seq_file *s, struct gpio_chip *chip)
diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h
index 2088eb50421c..4d34dbbbad4d 100644
--- a/include/linux/gpio/consumer.h
+++ b/include/linux/gpio/consumer.h
@@ -18,6 +18,21 @@ struct gpio_chip;
  */
 struct gpio_desc;
 
+/* Acquire and dispose GPIOs */
+struct gpio_desc *__must_check gpiod_get(struct device *dev,
+					 const char *con_id);
+struct gpio_desc *__must_check gpiod_get_index(struct device *dev,
+					       const char *con_id,
+					       unsigned int idx);
+void gpiod_put(struct gpio_desc *desc);
+
+struct gpio_desc *__must_check devm_gpiod_get(struct device *dev,
+					      const char *con_id);
+struct gpio_desc *__must_check devm_gpiod_get_index(struct device *dev,
+						    const char *con_id,
+						    unsigned int idx);
+void devm_gpiod_put(struct device *dev, struct gpio_desc *desc);
+
 int gpiod_get_direction(const struct gpio_desc *desc);
 int gpiod_direction_input(struct gpio_desc *desc);
 int gpiod_direction_output(struct gpio_desc *desc, int value);
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 5dc172c72f0f..cd9da3885d79 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -124,4 +124,60 @@ extern struct gpio_chip *gpiochip_find(void *data,
 int gpiod_lock_as_irq(struct gpio_desc *desc);
 void gpiod_unlock_as_irq(struct gpio_desc *desc);
 
+/**
+ * Lookup table for associating GPIOs to specific devices and functions using
+ * platform data.
+ */
+struct gpiod_lookup {
+	struct list_head list;
+	/*
+	 * name of the chip the GPIO belongs to
+	 */
+	const char *chip_label;
+	/*
+	 * hardware number (i.e. relative to the chip) of the GPIO
+	 */
+	u16 chip_hwnum;
+	/*
+	 * name of device that can claim this GPIO
+	 */
+	const char *dev_id;
+	/*
+	 * name of the GPIO from the device's point of view
+	 */
+	const char *con_id;
+	/*
+	 * index of the GPIO in case several GPIOs share the same name
+	 */
+	unsigned int idx;
+	/*
+	 * mask of GPIOF_* values
+	 */
+	unsigned long flags;
+};
+
+/*
+ * Simple definition of a single GPIO under a con_id
+ */
+#define GPIO_LOOKUP(_chip_label, _chip_hwnum, _dev_id, _con_id, _flags) \
+	GPIO_LOOKUP_IDX(_chip_label, _chip_hwnum, _dev_id, _con_id, 0, _flags)
+
+/*
+ * Use this macro if you need to have several GPIOs under the same con_id.
+ * Each GPIO needs to use a different index and can be accessed using
+ * gpiod_get_index()
+ */
+#define GPIO_LOOKUP_IDX(_chip_label, _chip_hwnum, _dev_id, _con_id, _idx, \
+			_flags)                                           \
+{                                                                         \
+	.chip_label = _chip_label,                                        \
+	.chip_hwnum = _chip_hwnum,                                        \
+	.dev_id = _dev_id,                                                \
+	.con_id = _con_id,                                                \
+	.idx = _idx,                                                      \
+	.flags = _flags,                                                  \
+}
+
+void gpiod_add_table(struct gpiod_lookup *table, size_t size);
+
 #endif
-- 
cgit 


From 7ea7b4a142758deaf46c1af0ca9ceca6dd55138b Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 30 Jul 2013 22:16:25 +0200
Subject: batman-adv: make the TT CRC logic VLAN specific

This change allows nodes to handle the TT table on a
per-VLAN basis. This is needed because nodes may have to
store only some of the global entries advertised by another
node.

In this scenario such nodes would re-create only a partial
global table and would not be able to compute a correct CRC
anymore.

This patch splits the logic and introduces one CRC per VLAN.
In this way a node fetching only some entries belonging to
some VLANs is still able to compute the needed CRCs and
still check the table correctness.

With this patch the shape of the TVLV-TT is changed too
because now a node needs to advertise all the CRCs of all
the VLANs that it is wired to.

The debug output of the local Translation Table now shows
the CRC along with each entry since there is not a common
value for the entire table anymore.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/originator.c        | 101 +++++-
 net/batman-adv/originator.h        |   7 +
 net/batman-adv/packet.h            |  18 +-
 net/batman-adv/translation-table.c | 720 +++++++++++++++++++++++++++++--------
 net/batman-adv/types.h             |  41 ++-
 5 files changed, 730 insertions(+), 157 deletions(-)

diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index 867778e8184d..7a499dad53d3 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -44,6 +44,88 @@ static int batadv_compare_orig(const struct hlist_node *node, const void *data2)
 	return (memcmp(data1, data2, ETH_ALEN) == 0 ? 1 : 0);
 }
 
+/**
+ * batadv_orig_node_vlan_get - get an orig_node_vlan object
+ * @orig_node: the originator serving the VLAN
+ * @vid: the VLAN identifier
+ *
+ * Returns the vlan object identified by vid and belonging to orig_node or NULL
+ * if it does not exist.
+ */
+struct batadv_orig_node_vlan *
+batadv_orig_node_vlan_get(struct batadv_orig_node *orig_node,
+			  unsigned short vid)
+{
+	struct batadv_orig_node_vlan *vlan = NULL, *tmp;
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(tmp, &orig_node->vlan_list, list) {
+		if (tmp->vid != vid)
+			continue;
+
+		if (!atomic_inc_not_zero(&tmp->refcount))
+			continue;
+
+		vlan = tmp;
+
+		break;
+	}
+	rcu_read_unlock();
+
+	return vlan;
+}
+
+/**
+ * batadv_orig_node_vlan_new - search and possibly create an orig_node_vlan
+ *  object
+ * @orig_node: the originator serving the VLAN
+ * @vid: the VLAN identifier
+ *
+ * Returns NULL in case of failure or the vlan object identified by vid and
+ * belonging to orig_node otherwise. The object is created and added to the list
+ * if it does not exist.
+ *
+ * The object is returned with refcounter increased by 1.
+ */
+struct batadv_orig_node_vlan *
+batadv_orig_node_vlan_new(struct batadv_orig_node *orig_node,
+			  unsigned short vid)
+{
+	struct batadv_orig_node_vlan *vlan;
+
+	spin_lock_bh(&orig_node->vlan_list_lock);
+
+	/* first look if an object for this vid already exists */
+	vlan = batadv_orig_node_vlan_get(orig_node, vid);
+	if (vlan)
+		goto out;
+
+	vlan = kzalloc(sizeof(*vlan), GFP_ATOMIC);
+	if (!vlan)
+		goto out;
+
+	atomic_set(&vlan->refcount, 2);
+	vlan->vid = vid;
+
+	list_add_rcu(&vlan->list, &orig_node->vlan_list);
+
+out:
+	spin_unlock_bh(&orig_node->vlan_list_lock);
+
+	return vlan;
+}
+
+/**
+ * batadv_orig_node_vlan_free_ref - decrement the refcounter and possibly free
+ *  the originator-vlan object
+ * @orig_vlan: the originator-vlan object to release
+ */
+void batadv_orig_node_vlan_free_ref(struct batadv_orig_node_vlan *orig_vlan)
+{
+	if (atomic_dec_and_test(&orig_vlan->refcount))
+		kfree_rcu(orig_vlan, rcu);
+}
+
 int batadv_originator_init(struct batadv_priv *bat_priv)
 {
 	if (bat_priv->orig_hash)
@@ -218,6 +300,7 @@ struct batadv_orig_node *batadv_get_orig_node(struct batadv_priv *bat_priv,
 					      const uint8_t *addr)
 {
 	struct batadv_orig_node *orig_node;
+	struct batadv_orig_node_vlan *vlan;
 	int size, i;
 	int hash_added;
 	unsigned long reset_time;
@@ -235,11 +318,13 @@ struct batadv_orig_node *batadv_get_orig_node(struct batadv_priv *bat_priv,
 
 	INIT_HLIST_HEAD(&orig_node->neigh_list);
 	INIT_LIST_HEAD(&orig_node->bond_list);
+	INIT_LIST_HEAD(&orig_node->vlan_list);
 	spin_lock_init(&orig_node->ogm_cnt_lock);
 	spin_lock_init(&orig_node->bcast_seqno_lock);
 	spin_lock_init(&orig_node->neigh_list_lock);
 	spin_lock_init(&orig_node->tt_buff_lock);
 	spin_lock_init(&orig_node->tt_lock);
+	spin_lock_init(&orig_node->vlan_list_lock);
 
 	batadv_nc_init_orig(orig_node);
 
@@ -251,22 +336,30 @@ struct batadv_orig_node *batadv_get_orig_node(struct batadv_priv *bat_priv,
 	memcpy(orig_node->orig, addr, ETH_ALEN);
 	batadv_dat_init_orig_node_addr(orig_node);
 	orig_node->router = NULL;
-	orig_node->tt_crc = 0;
 	atomic_set(&orig_node->last_ttvn, 0);
 	orig_node->tt_buff = NULL;
 	orig_node->tt_buff_len = 0;
-	atomic_set(&orig_node->tt_size, 0);
 	reset_time = jiffies - 1 - msecs_to_jiffies(BATADV_RESET_PROTECTION_MS);
 	orig_node->bcast_seqno_reset = reset_time;
 	orig_node->batman_seqno_reset = reset_time;
 
 	atomic_set(&orig_node->bond_candidates, 0);
 
+	/* create a vlan object for the "untagged" LAN */
+	vlan = batadv_orig_node_vlan_new(orig_node, BATADV_NO_FLAGS);
+	if (!vlan)
+		goto free_orig_node;
+	/* batadv_orig_node_vlan_new() increases the refcounter.
+	 * Immediately release vlan since it is not needed anymore in this
+	 * context
+	 */
+	batadv_orig_node_vlan_free_ref(vlan);
+
 	size = bat_priv->num_ifaces * sizeof(unsigned long) * BATADV_NUM_WORDS;
 
 	orig_node->bcast_own = kzalloc(size, GFP_ATOMIC);
 	if (!orig_node->bcast_own)
-		goto free_orig_node;
+		goto free_vlan;
 
 	size = bat_priv->num_ifaces * sizeof(uint8_t);
 	orig_node->bcast_own_sum = kzalloc(size, GFP_ATOMIC);
@@ -291,6 +384,8 @@ free_bcast_own_sum:
 	kfree(orig_node->bcast_own_sum);
 free_bcast_own:
 	kfree(orig_node->bcast_own);
+free_vlan:
+	batadv_orig_node_vlan_free_ref(vlan);
 free_orig_node:
 	kfree(orig_node);
 	return NULL;
diff --git a/net/batman-adv/originator.h b/net/batman-adv/originator.h
index 7887b84a9af4..cc6d686cfe6d 100644
--- a/net/batman-adv/originator.h
+++ b/net/batman-adv/originator.h
@@ -40,6 +40,13 @@ int batadv_orig_hash_add_if(struct batadv_hard_iface *hard_iface,
 			    int max_if_num);
 int batadv_orig_hash_del_if(struct batadv_hard_iface *hard_iface,
 			    int max_if_num);
+struct batadv_orig_node_vlan *
+batadv_orig_node_vlan_new(struct batadv_orig_node *orig_node,
+			  unsigned short vid);
+struct batadv_orig_node_vlan *
+batadv_orig_node_vlan_get(struct batadv_orig_node *orig_node,
+			  unsigned short vid);
+void batadv_orig_node_vlan_free_ref(struct batadv_orig_node_vlan *orig_vlan);
 
 
 /* hashfunction to choose an entry in a hash table of given size
diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index 6311642f3ee8..9fbcaacc345a 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -391,14 +391,26 @@ struct batadv_tvlv_gateway_data {
  * struct batadv_tvlv_tt_data - tt data propagated through the tt tvlv container
  * @flags: translation table flags (see batadv_tt_data_flags)
  * @ttvn: translation table version number
- * @reserved: field reserved for future use
- * @crc: crc32 checksum of the local translation table
+ * @vlan_num: number of announced VLANs. In the TVLV this struct is followed by
+ *  one batadv_tvlv_tt_vlan_data object per announced vlan
  */
 struct batadv_tvlv_tt_data {
 	uint8_t flags;
 	uint8_t ttvn;
+	__be16  num_vlan;
+};
+
+/**
+ * struct batadv_tvlv_tt_vlan_data - vlan specific tt data propagated through
+ *  the tt tvlv container
+ * @crc: crc32 checksum of the entries belonging to this vlan
+ * @vid: vlan identifier
+ * @reserved: unused, useful for alignment purposes
+ */
+struct batadv_tvlv_tt_vlan_data {
+	__be32	crc;
+	__be16	vid;
 	uint16_t reserved;
-	__be32  crc;
 };
 
 /**
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 00f4faa69c07..41a8387c5ef8 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -208,13 +208,107 @@ static void batadv_tt_orig_list_entry_free_rcu(struct rcu_head *rcu)
 	kfree(orig_entry);
 }
 
+/**
+ * batadv_tt_local_size_mod - change the size by v of the local table identified
+ *  by vid
+ * @bat_priv: the bat priv with all the soft interface information
+ * @vid: the VLAN identifier of the sub-table to change
+ * @v: the amount to sum to the local table size
+ */
+static void batadv_tt_local_size_mod(struct batadv_priv *bat_priv,
+				     unsigned short vid, int v)
+{
+	struct batadv_softif_vlan *vlan;
+
+	vlan = batadv_softif_vlan_get(bat_priv, vid);
+	if (!vlan)
+		return;
+
+	atomic_add(v, &vlan->tt.num_entries);
+
+	batadv_softif_vlan_free_ref(vlan);
+}
+
+/**
+ * batadv_tt_local_size_inc - increase by one the local table size for the given
+ *  vid
+ * @bat_priv: the bat priv with all the soft interface information
+ * @vid: the VLAN identifier
+ */
+static void batadv_tt_local_size_inc(struct batadv_priv *bat_priv,
+				     unsigned short vid)
+{
+	batadv_tt_local_size_mod(bat_priv, vid, 1);
+}
+
+/**
+ * batadv_tt_local_size_dec - decrease by one the local table size for the given
+ *  vid
+ * @bat_priv: the bat priv with all the soft interface information
+ * @vid: the VLAN identifier
+ */
+static void batadv_tt_local_size_dec(struct batadv_priv *bat_priv,
+				     unsigned short vid)
+{
+	batadv_tt_local_size_mod(bat_priv, vid, -1);
+}
+
+/**
+ * batadv_tt_global_size_mod - change the size by v of the local table
+ *  identified by vid
+ * @bat_priv: the bat priv with all the soft interface information
+ * @vid: the VLAN identifier
+ * @v: the amount to sum to the global table size
+ */
+static void batadv_tt_global_size_mod(struct batadv_orig_node *orig_node,
+				      unsigned short vid, int v)
+{
+	struct batadv_orig_node_vlan *vlan;
+
+	vlan = batadv_orig_node_vlan_new(orig_node, vid);
+	if (!vlan)
+		return;
+
+	if (atomic_add_return(v, &vlan->tt.num_entries) == 0) {
+		spin_lock_bh(&orig_node->vlan_list_lock);
+		list_del_rcu(&vlan->list);
+		spin_unlock_bh(&orig_node->vlan_list_lock);
+		batadv_orig_node_vlan_free_ref(vlan);
+	}
+
+	batadv_orig_node_vlan_free_ref(vlan);
+}
+
+/**
+ * batadv_tt_global_size_inc - increase by one the global table size for the
+ *  given vid
+ * @orig_node: the originator which global table size has to be decreased
+ * @vid: the vlan identifier
+ */
+static void batadv_tt_global_size_inc(struct batadv_orig_node *orig_node,
+				      unsigned short vid)
+{
+	batadv_tt_global_size_mod(orig_node, vid, 1);
+}
+
+/**
+ * batadv_tt_global_size_dec - decrease by one the global table size for the
+ *  given vid
+ * @orig_node: the originator which global table size has to be decreased
+ * @vid: the vlan identifier
+ */
+static void batadv_tt_global_size_dec(struct batadv_orig_node *orig_node,
+				      unsigned short vid)
+{
+	batadv_tt_global_size_mod(orig_node, vid, -1);
+}
+
 static void
 batadv_tt_orig_list_entry_free_ref(struct batadv_tt_orig_list_entry *orig_entry)
 {
 	if (!atomic_dec_and_test(&orig_entry->refcount))
 		return;
-	/* to avoid race conditions, immediately decrease the tt counter */
-	atomic_dec(&orig_entry->orig_node->tt_size);
+
 	call_rcu(&orig_entry->rcu, batadv_tt_orig_list_entry_free_rcu);
 }
 
@@ -463,6 +557,149 @@ out:
 		batadv_tt_global_entry_free_ref(tt_global);
 }
 
+/**
+ * batadv_tt_prepare_tvlv_global_data - prepare the TVLV TT header to send
+ *  within a TT Response directed to another node
+ * @orig_node: originator for which the TT data has to be prepared
+ * @tt_data: uninitialised pointer to the address of the TVLV buffer
+ * @tt_change: uninitialised pointer to the address of the area where the TT
+ *  changed can be stored
+ * @tt_len: pointer to the length to reserve to the tt_change. if -1 this
+ *  function reserves the amount of space needed to send the entire global TT
+ *  table. In case of success the value is updated with the real amount of
+ *  reserved bytes
+
+ * Allocate the needed amount of memory for the entire TT TVLV and write its
+ * header made up by one tvlv_tt_data object and a series of tvlv_tt_vlan_data
+ * objects, one per active VLAN served by the originator node.
+ *
+ * Return the size of the allocated buffer or 0 in case of failure.
+ */
+static uint16_t
+batadv_tt_prepare_tvlv_global_data(struct batadv_orig_node *orig_node,
+				   struct batadv_tvlv_tt_data **tt_data,
+				   struct batadv_tvlv_tt_change **tt_change,
+				   int32_t *tt_len)
+{
+	uint16_t num_vlan = 0, num_entries = 0, change_offset, tvlv_len;
+	struct batadv_tvlv_tt_vlan_data *tt_vlan;
+	struct batadv_orig_node_vlan *vlan;
+	uint8_t *tt_change_ptr;
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(vlan, &orig_node->vlan_list, list) {
+		num_vlan++;
+		num_entries += atomic_read(&vlan->tt.num_entries);
+	}
+
+	change_offset = sizeof(**tt_data);
+	change_offset += num_vlan * sizeof(*tt_vlan);
+
+	/* if tt_len is negative, allocate the space needed by the full table */
+	if (*tt_len < 0)
+		*tt_len = batadv_tt_len(num_entries);
+
+	tvlv_len = *tt_len;
+	tvlv_len += change_offset;
+
+	*tt_data = kmalloc(tvlv_len, GFP_ATOMIC);
+	if (!*tt_data) {
+		*tt_len = 0;
+		goto out;
+	}
+
+	(*tt_data)->flags = BATADV_NO_FLAGS;
+	(*tt_data)->ttvn = atomic_read(&orig_node->last_ttvn);
+	(*tt_data)->num_vlan = htons(num_vlan);
+
+	tt_vlan = (struct batadv_tvlv_tt_vlan_data *)(*tt_data + 1);
+	list_for_each_entry_rcu(vlan, &orig_node->vlan_list, list) {
+		tt_vlan->vid = htons(vlan->vid);
+		tt_vlan->crc = htonl(vlan->tt.crc);
+
+		tt_vlan++;
+	}
+
+	tt_change_ptr = (uint8_t *)*tt_data + change_offset;
+	*tt_change = (struct batadv_tvlv_tt_change *)tt_change_ptr;
+
+out:
+	rcu_read_unlock();
+	return tvlv_len;
+}
+
+/**
+ * batadv_tt_prepare_tvlv_local_data - allocate and prepare the TT TVLV for this
+ *  node
+ * @bat_priv: the bat priv with all the soft interface information
+ * @tt_data: uninitialised pointer to the address of the TVLV buffer
+ * @tt_change: uninitialised pointer to the address of the area where the TT
+ *  changes can be stored
+ * @tt_len: pointer to the length to reserve to the tt_change. if -1 this
+ *  function reserves the amount of space needed to send the entire local TT
+ *  table. In case of success the value is updated with the real amount of
+ *  reserved bytes
+ *
+ * Allocate the needed amount of memory for the entire TT TVLV and write its
+ * header made up by one tvlv_tt_data object and a series of tvlv_tt_vlan_data
+ * objects, one per active VLAN.
+ *
+ * Return the size of the allocated buffer or 0 in case of failure.
+ */
+static uint16_t
+batadv_tt_prepare_tvlv_local_data(struct batadv_priv *bat_priv,
+				  struct batadv_tvlv_tt_data **tt_data,
+				  struct batadv_tvlv_tt_change **tt_change,
+				  int32_t *tt_len)
+{
+	struct batadv_tvlv_tt_vlan_data *tt_vlan;
+	struct batadv_softif_vlan *vlan;
+	uint16_t num_vlan = 0, num_entries = 0, tvlv_len;
+	uint8_t *tt_change_ptr;
+	int change_offset;
+
+	rcu_read_lock();
+	hlist_for_each_entry_rcu(vlan, &bat_priv->softif_vlan_list, list) {
+		num_vlan++;
+		num_entries += atomic_read(&vlan->tt.num_entries);
+	}
+
+	change_offset = sizeof(**tt_data);
+	change_offset += num_vlan * sizeof(*tt_vlan);
+
+	/* if tt_len is negative, allocate the space needed by the full table */
+	if (*tt_len < 0)
+		*tt_len = batadv_tt_len(num_entries);
+
+	tvlv_len = *tt_len;
+	tvlv_len += change_offset;
+
+	*tt_data = kmalloc(tvlv_len, GFP_ATOMIC);
+	if (!*tt_data) {
+		tvlv_len = 0;
+		goto out;
+	}
+
+	(*tt_data)->flags = BATADV_NO_FLAGS;
+	(*tt_data)->ttvn = atomic_read(&bat_priv->tt.vn);
+	(*tt_data)->num_vlan = htons(num_vlan);
+
+	tt_vlan = (struct batadv_tvlv_tt_vlan_data *)(*tt_data + 1);
+	hlist_for_each_entry_rcu(vlan, &bat_priv->softif_vlan_list, list) {
+		tt_vlan->vid = htons(vlan->vid);
+		tt_vlan->crc = htonl(vlan->tt.crc);
+
+		tt_vlan++;
+	}
+
+	tt_change_ptr = (uint8_t *)*tt_data + change_offset;
+	*tt_change = (struct batadv_tvlv_tt_change *)tt_change_ptr;
+
+out:
+	rcu_read_unlock();
+	return tvlv_len;
+}
+
 /**
  * batadv_tt_tvlv_container_update - update the translation table tvlv container
  *  after local tt changes have been committed
@@ -473,10 +710,12 @@ static void batadv_tt_tvlv_container_update(struct batadv_priv *bat_priv)
 	struct batadv_tt_change_node *entry, *safe;
 	struct batadv_tvlv_tt_data *tt_data;
 	struct batadv_tvlv_tt_change *tt_change;
-	int tt_diff_len = 0, tt_change_len = 0;
+	int tt_diff_len, tt_change_len = 0;
 	int tt_diff_entries_num = 0, tt_diff_entries_count = 0;
+	uint16_t tvlv_len;
 
-	tt_diff_len += batadv_tt_len(atomic_read(&bat_priv->tt.local_changes));
+	tt_diff_entries_num = atomic_read(&bat_priv->tt.local_changes);
+	tt_diff_len = batadv_tt_len(tt_diff_entries_num);
 
 	/* if we have too many changes for one packet don't send any
 	 * and wait for the tt table request which will be fragmented
@@ -484,24 +723,19 @@ static void batadv_tt_tvlv_container_update(struct batadv_priv *bat_priv)
 	if (tt_diff_len > bat_priv->soft_iface->mtu)
 		tt_diff_len = 0;
 
-	tt_data = kzalloc(sizeof(*tt_data) + tt_diff_len, GFP_ATOMIC);
-	if (!tt_data)
+	tvlv_len = batadv_tt_prepare_tvlv_local_data(bat_priv, &tt_data,
+						     &tt_change, &tt_diff_len);
+	if (!tvlv_len)
 		return;
 
 	tt_data->flags = BATADV_TT_OGM_DIFF;
-	tt_data->ttvn = atomic_read(&bat_priv->tt.vn);
-	tt_data->crc = htonl(bat_priv->tt.local_crc);
 
 	if (tt_diff_len == 0)
 		goto container_register;
 
-	tt_diff_entries_num = batadv_tt_entries(tt_diff_len);
-
 	spin_lock_bh(&bat_priv->tt.changes_list_lock);
 	atomic_set(&bat_priv->tt.local_changes, 0);
 
-	tt_change = (struct batadv_tvlv_tt_change *)(tt_data + 1);
-
 	list_for_each_entry_safe(entry, safe, &bat_priv->tt.changes_list,
 				 list) {
 		if (tt_diff_entries_count < tt_diff_entries_num) {
@@ -537,7 +771,7 @@ static void batadv_tt_tvlv_container_update(struct batadv_priv *bat_priv)
 
 container_register:
 	batadv_tvlv_container_register(bat_priv, BATADV_TVLV_TT, 1, tt_data,
-				       sizeof(*tt_data) + tt_change_len);
+				       tvlv_len);
 	kfree(tt_data);
 }
 
@@ -549,7 +783,9 @@ int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset)
 	struct batadv_tt_common_entry *tt_common_entry;
 	struct batadv_tt_local_entry *tt_local;
 	struct batadv_hard_iface *primary_if;
+	struct batadv_softif_vlan *vlan;
 	struct hlist_head *head;
+	unsigned short vid;
 	uint32_t i;
 	int last_seen_secs;
 	int last_seen_msecs;
@@ -562,11 +798,10 @@ int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset)
 		goto out;
 
 	seq_printf(seq,
-		   "Locally retrieved addresses (from %s) announced via TT (TTVN: %u CRC: %#.8x):\n",
-		   net_dev->name, (uint8_t)atomic_read(&bat_priv->tt.vn),
-		   bat_priv->tt.local_crc);
-	seq_printf(seq, "       %-13s  %s %-7s %-10s\n", "Client", "VID",
-		   "Flags", "Last seen");
+		   "Locally retrieved addresses (from %s) announced via TT (TTVN: %u):\n",
+		   net_dev->name, (uint8_t)atomic_read(&bat_priv->tt.vn));
+	seq_printf(seq, "       %-13s  %s %-7s %-9s (%-10s)\n", "Client", "VID",
+		   "Flags", "Last seen", "CRC");
 
 	for (i = 0; i < hash->size; i++) {
 		head = &hash->table[i];
@@ -577,6 +812,7 @@ int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset)
 			tt_local = container_of(tt_common_entry,
 						struct batadv_tt_local_entry,
 						common);
+			vid = tt_common_entry->vid;
 			last_seen_jiffies = jiffies - tt_local->last_seen;
 			last_seen_msecs = jiffies_to_msecs(last_seen_jiffies);
 			last_seen_secs = last_seen_msecs / 1000;
@@ -584,7 +820,15 @@ int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset)
 
 			no_purge = tt_common_entry->flags & np_flag;
 
-			seq_printf(seq, " * %pM %4i [%c%c%c%c%c] %3u.%03u\n",
+			vlan = batadv_softif_vlan_get(bat_priv, vid);
+			if (!vlan) {
+				seq_printf(seq, "Cannot retrieve VLAN %d\n",
+					   BATADV_PRINT_VID(vid));
+				continue;
+			}
+
+			seq_printf(seq,
+				   " * %pM %4i [%c%c%c%c%c] %3u.%03u   (%#.8x)\n",
 				   tt_common_entry->addr,
 				   BATADV_PRINT_VID(tt_common_entry->vid),
 				   (tt_common_entry->flags &
@@ -597,7 +841,10 @@ int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset)
 				   (tt_common_entry->flags &
 				    BATADV_TT_CLIENT_WIFI ? 'W' : '.'),
 				   no_purge ? 0 : last_seen_secs,
-				   no_purge ? 0 : last_seen_msecs);
+				   no_purge ? 0 : last_seen_msecs,
+				   vlan->tt.crc);
+
+			batadv_softif_vlan_free_ref(vlan);
 		}
 		rcu_read_unlock();
 	}
@@ -860,7 +1107,7 @@ batadv_tt_global_orig_entry_add(struct batadv_tt_global_entry *tt_global,
 
 	INIT_HLIST_NODE(&orig_entry->list);
 	atomic_inc(&orig_node->refcount);
-	atomic_inc(&orig_node->tt_size);
+	batadv_tt_global_size_inc(orig_node, tt_global->common.vid);
 	orig_entry->orig_node = orig_node;
 	orig_entry->ttvn = ttvn;
 	atomic_set(&orig_entry->refcount, 2);
@@ -1070,45 +1317,71 @@ static void
 batadv_tt_global_print_entry(struct batadv_tt_global_entry *tt_global_entry,
 			     struct seq_file *seq)
 {
-	struct hlist_head *head;
 	struct batadv_tt_orig_list_entry *orig_entry, *best_entry;
 	struct batadv_tt_common_entry *tt_common_entry;
-	uint16_t flags;
+	struct batadv_orig_node_vlan *vlan;
+	struct hlist_head *head;
 	uint8_t last_ttvn;
+	uint16_t flags;
 
 	tt_common_entry = &tt_global_entry->common;
 	flags = tt_common_entry->flags;
 
 	best_entry = batadv_transtable_best_orig(tt_global_entry);
 	if (best_entry) {
+		vlan = batadv_orig_node_vlan_get(best_entry->orig_node,
+						 tt_common_entry->vid);
+		if (!vlan) {
+			seq_printf(seq,
+				   " * Cannot retrieve VLAN %d for originator %pM\n",
+				   BATADV_PRINT_VID(tt_common_entry->vid),
+				   best_entry->orig_node->orig);
+			goto print_list;
+		}
+
 		last_ttvn = atomic_read(&best_entry->orig_node->last_ttvn);
 		seq_printf(seq,
 			   " %c %pM %4i   (%3u) via %pM     (%3u)   (%#.8x) [%c%c%c]\n",
 			   '*', tt_global_entry->common.addr,
 			   BATADV_PRINT_VID(tt_global_entry->common.vid),
 			   best_entry->ttvn, best_entry->orig_node->orig,
-			   last_ttvn, best_entry->orig_node->tt_crc,
+			   last_ttvn, vlan->tt.crc,
 			   (flags & BATADV_TT_CLIENT_ROAM ? 'R' : '.'),
 			   (flags & BATADV_TT_CLIENT_WIFI ? 'W' : '.'),
 			   (flags & BATADV_TT_CLIENT_TEMP ? 'T' : '.'));
+
+		batadv_orig_node_vlan_free_ref(vlan);
 	}
 
+print_list:
 	head = &tt_global_entry->orig_list;
 
 	hlist_for_each_entry_rcu(orig_entry, head, list) {
 		if (best_entry == orig_entry)
 			continue;
 
+		vlan = batadv_orig_node_vlan_get(orig_entry->orig_node,
+						 tt_common_entry->vid);
+		if (!vlan) {
+			seq_printf(seq,
+				   " + Cannot retrieve VLAN %d for originator %pM\n",
+				   BATADV_PRINT_VID(tt_common_entry->vid),
+				   orig_entry->orig_node->orig);
+			continue;
+		}
+
 		last_ttvn = atomic_read(&orig_entry->orig_node->last_ttvn);
 		seq_printf(seq,
-			   " %c %pM %4d   (%3u) via %pM     (%3u)   [%c%c%c]\n",
+			   " %c %pM %4d   (%3u) via %pM     (%3u)   (%#.8x) [%c%c%c]\n",
 			   '+', tt_global_entry->common.addr,
 			   BATADV_PRINT_VID(tt_global_entry->common.vid),
 			   orig_entry->ttvn, orig_entry->orig_node->orig,
-			   last_ttvn,
+			   last_ttvn, vlan->tt.crc,
 			   (flags & BATADV_TT_CLIENT_ROAM ? 'R' : '.'),
 			   (flags & BATADV_TT_CLIENT_WIFI ? 'W' : '.'),
 			   (flags & BATADV_TT_CLIENT_TEMP ? 'T' : '.'));
+
+		batadv_orig_node_vlan_free_ref(vlan);
 	}
 }
 
@@ -1165,6 +1438,8 @@ batadv_tt_global_del_orig_list(struct batadv_tt_global_entry *tt_global_entry)
 	head = &tt_global_entry->orig_list;
 	hlist_for_each_entry_safe(orig_entry, safe, head, list) {
 		hlist_del_rcu(&orig_entry->list);
+		batadv_tt_global_size_dec(orig_entry->orig_node,
+					  tt_global_entry->common.vid);
 		batadv_tt_orig_list_entry_free_ref(orig_entry);
 	}
 	spin_unlock_bh(&tt_global_entry->list_lock);
@@ -1192,6 +1467,8 @@ batadv_tt_global_del_orig_entry(struct batadv_priv *bat_priv,
 				   tt_global_entry->common.addr,
 				   BATADV_PRINT_VID(vid), message);
 			hlist_del_rcu(&orig_entry->list);
+			batadv_tt_global_size_dec(orig_node,
+						  tt_global_entry->common.vid);
 			batadv_tt_orig_list_entry_free_ref(orig_entry);
 		}
 	}
@@ -1535,6 +1812,7 @@ out:
  *  to the given orig_node
  * @bat_priv: the bat priv with all the soft interface information
  * @orig_node: originator for which the CRC should be computed
+ * @vid: VLAN identifier for which the CRC32 has to be computed
  *
  * This function computes the checksum for the global table corresponding to a
  * specific originator. In particular, the checksum is computed as follows: For
@@ -1554,7 +1832,8 @@ out:
  * Returns the checksum of the global table of a given originator.
  */
 static uint32_t batadv_tt_global_crc(struct batadv_priv *bat_priv,
-				     struct batadv_orig_node *orig_node)
+				     struct batadv_orig_node *orig_node,
+				     unsigned short vid)
 {
 	struct batadv_hashtable *hash = bat_priv->tt.global_hash;
 	struct batadv_tt_common_entry *tt_common;
@@ -1570,6 +1849,12 @@ static uint32_t batadv_tt_global_crc(struct batadv_priv *bat_priv,
 			tt_global = container_of(tt_common,
 						 struct batadv_tt_global_entry,
 						 common);
+			/* compute the CRC only for entries belonging to the
+			 * VLAN identified by the vid passed as parameter
+			 */
+			if (tt_common->vid != vid)
+				continue;
+
 			/* Roaming clients are in the global table for
 			 * consistency only. They don't have to be
 			 * taken into account while computing the
@@ -1604,13 +1889,15 @@ static uint32_t batadv_tt_global_crc(struct batadv_priv *bat_priv,
 /**
  * batadv_tt_local_crc - calculates the checksum of the local table
  * @bat_priv: the bat priv with all the soft interface information
+ * @vid: VLAN identifier for which the CRC32 has to be computed
  *
  * For details about the computation, please refer to the documentation for
  * batadv_tt_global_crc().
  *
  * Returns the checksum of the local table
  */
-static uint32_t batadv_tt_local_crc(struct batadv_priv *bat_priv)
+static uint32_t batadv_tt_local_crc(struct batadv_priv *bat_priv,
+				    unsigned short vid)
 {
 	struct batadv_hashtable *hash = bat_priv->tt.local_hash;
 	struct batadv_tt_common_entry *tt_common;
@@ -1622,6 +1909,12 @@ static uint32_t batadv_tt_local_crc(struct batadv_priv *bat_priv)
 
 		rcu_read_lock();
 		hlist_for_each_entry_rcu(tt_common, head, hash_entry) {
+			/* compute the CRC only for entries belonging to the
+			 * VLAN identified by vid
+			 */
+			if (tt_common->vid != vid)
+				continue;
+
 			/* not yet committed clients have not to be taken into
 			 * account while computing the CRC
 			 */
@@ -1753,44 +2046,29 @@ static int batadv_tt_global_valid(const void *entry_ptr,
 }
 
 /**
- * batadv_tt_tvlv_generate - creates tvlv tt data buffer to fill it with the
- *  tt entries from the specified tt hash
+ * batadv_tt_tvlv_generate - fill the tvlv buff with the tt entries from the
+ *  specified tt hash
  * @bat_priv: the bat priv with all the soft interface information
  * @hash: hash table containing the tt entries
  * @tt_len: expected tvlv tt data buffer length in number of bytes
+ * @tvlv_buff: pointer to the buffer to fill with the TT data
  * @valid_cb: function to filter tt change entries
  * @cb_data: data passed to the filter function as argument
- *
- * Returns pointer to allocated tvlv tt data buffer if operation was
- * successful or NULL otherwise.
  */
-static struct batadv_tvlv_tt_data *
-batadv_tt_tvlv_generate(struct batadv_priv *bat_priv,
-			struct batadv_hashtable *hash, uint16_t tt_len,
-			int (*valid_cb)(const void *, const void *),
-			void *cb_data)
+static void batadv_tt_tvlv_generate(struct batadv_priv *bat_priv,
+				    struct batadv_hashtable *hash,
+				    void *tvlv_buff, uint16_t tt_len,
+				    int (*valid_cb)(const void *, const void *),
+				    void *cb_data)
 {
 	struct batadv_tt_common_entry *tt_common_entry;
-	struct batadv_tvlv_tt_data *tvlv_tt_data = NULL;
 	struct batadv_tvlv_tt_change *tt_change;
 	struct hlist_head *head;
 	uint16_t tt_tot, tt_num_entries = 0;
-	ssize_t tvlv_tt_size = sizeof(struct batadv_tvlv_tt_data);
 	uint32_t i;
 
-	if (tvlv_tt_size + tt_len > bat_priv->soft_iface->mtu) {
-		tt_len = bat_priv->soft_iface->mtu - tvlv_tt_size;
-		tt_len -= tt_len % sizeof(struct batadv_tvlv_tt_change);
-	}
-
 	tt_tot = batadv_tt_entries(tt_len);
-
-	tvlv_tt_data = kzalloc(sizeof(*tvlv_tt_data) + tt_len,
-			       GFP_ATOMIC);
-	if (!tvlv_tt_data)
-		goto out;
-
-	tt_change = (struct batadv_tvlv_tt_change *)(tvlv_tt_data + 1);
+	tt_change = (struct batadv_tvlv_tt_change *)tvlv_buff;
 
 	rcu_read_lock();
 	for (i = 0; i < hash->size; i++) {
@@ -1815,9 +2093,89 @@ batadv_tt_tvlv_generate(struct batadv_priv *bat_priv,
 		}
 	}
 	rcu_read_unlock();
+}
 
-out:
-	return tvlv_tt_data;
+/**
+ * batadv_tt_global_check_crc - check if all the CRCs are correct
+ * @orig_node: originator for which the CRCs have to be checked
+ * @tt_vlan: pointer to the first tvlv VLAN entry
+ * @num_vlan: number of tvlv VLAN entries
+ * @create: if true, create VLAN objects if not found
+ *
+ * Return true if all the received CRCs match the locally stored ones, false
+ * otherwise
+ */
+static bool batadv_tt_global_check_crc(struct batadv_orig_node *orig_node,
+				       struct batadv_tvlv_tt_vlan_data *tt_vlan,
+				       uint16_t num_vlan)
+{
+	struct batadv_tvlv_tt_vlan_data *tt_vlan_tmp;
+	struct batadv_orig_node_vlan *vlan;
+	int i;
+
+	/* check if each received CRC matches the locally stored one */
+	for (i = 0; i < num_vlan; i++) {
+		tt_vlan_tmp = tt_vlan + i;
+
+		/* if orig_node is a backbone node for this VLAN, don't check
+		 * the CRC as we ignore all the global entries over it
+		 */
+		if (batadv_bla_is_backbone_gw_orig(orig_node->bat_priv,
+						   orig_node->orig))
+			continue;
+
+		vlan = batadv_orig_node_vlan_get(orig_node,
+						 ntohs(tt_vlan_tmp->vid));
+		if (!vlan)
+			return false;
+
+		if (vlan->tt.crc != ntohl(tt_vlan_tmp->crc))
+			return false;
+	}
+
+	return true;
+}
+
+/**
+ * batadv_tt_local_update_crc - update all the local CRCs
+ * @bat_priv: the bat priv with all the soft interface information
+ */
+static void batadv_tt_local_update_crc(struct batadv_priv *bat_priv)
+{
+	struct batadv_softif_vlan *vlan;
+
+	/* recompute the global CRC for each VLAN */
+	rcu_read_lock();
+	hlist_for_each_entry_rcu(vlan, &bat_priv->softif_vlan_list, list) {
+		vlan->tt.crc = batadv_tt_local_crc(bat_priv, vlan->vid);
+	}
+	rcu_read_unlock();
+}
+
+/**
+ * batadv_tt_global_update_crc - update all the global CRCs for this orig_node
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig_node: the orig_node for which the CRCs have to be updated
+ */
+static void batadv_tt_global_update_crc(struct batadv_priv *bat_priv,
+					struct batadv_orig_node *orig_node)
+{
+	struct batadv_orig_node_vlan *vlan;
+	uint32_t crc;
+
+	/* recompute the global CRC for each VLAN */
+	rcu_read_lock();
+	list_for_each_entry_rcu(vlan, &orig_node->vlan_list, list) {
+		/* if orig_node is a backbone node for this VLAN, don't compute
+		 * the CRC as we ignore all the global entries over it
+		 */
+		if (batadv_bla_is_backbone_gw_orig(bat_priv, orig_node->orig))
+			continue;
+
+		crc = batadv_tt_global_crc(bat_priv, orig_node, vlan->vid);
+		vlan->tt.crc = crc;
+	}
+	rcu_read_unlock();
 }
 
 /**
@@ -1825,19 +2183,23 @@ out:
  * @bat_priv: the bat priv with all the soft interface information
  * @dst_orig_node: the destination of the message
  * @ttvn: the version number that the source of the message is looking for
- * @tt_crc: the CRC associated with the version number
+ * @tt_vlan: pointer to the first tvlv VLAN object to request
+ * @num_vlan: number of tvlv VLAN entries
  * @full_table: ask for the entire translation table if true, while only for the
  *  last TT diff otherwise
  */
 static int batadv_send_tt_request(struct batadv_priv *bat_priv,
 				  struct batadv_orig_node *dst_orig_node,
-				  uint8_t ttvn, uint32_t tt_crc,
-				  bool full_table)
+				  uint8_t ttvn,
+				  struct batadv_tvlv_tt_vlan_data *tt_vlan,
+				  uint16_t num_vlan, bool full_table)
 {
 	struct batadv_tvlv_tt_data *tvlv_tt_data = NULL;
-	struct batadv_hard_iface *primary_if;
 	struct batadv_tt_req_node *tt_req_node = NULL;
+	struct batadv_tvlv_tt_vlan_data *tt_vlan_req;
+	struct batadv_hard_iface *primary_if;
 	bool ret = false;
+	int i, size;
 
 	primary_if = batadv_primary_if_get_selected(bat_priv);
 	if (!primary_if)
@@ -1850,13 +2212,26 @@ static int batadv_send_tt_request(struct batadv_priv *bat_priv,
 	if (!tt_req_node)
 		goto out;
 
-	tvlv_tt_data = kzalloc(sizeof(*tvlv_tt_data), GFP_ATOMIC);
+	size = sizeof(*tvlv_tt_data) + sizeof(*tt_vlan_req) * num_vlan;
+	tvlv_tt_data = kzalloc(size, GFP_ATOMIC);
 	if (!tvlv_tt_data)
 		goto out;
 
 	tvlv_tt_data->flags = BATADV_TT_REQUEST;
 	tvlv_tt_data->ttvn = ttvn;
-	tvlv_tt_data->crc = htonl(tt_crc);
+	tvlv_tt_data->num_vlan = htons(num_vlan);
+
+	/* send all the CRCs within the request. This is needed by intermediate
+	 * nodes to ensure they have the correct table before replying
+	 */
+	tt_vlan_req = (struct batadv_tvlv_tt_vlan_data *)(tvlv_tt_data + 1);
+	for (i = 0; i < num_vlan; i++) {
+		tt_vlan_req->vid = tt_vlan->vid;
+		tt_vlan_req->crc = tt_vlan->crc;
+
+		tt_vlan_req++;
+		tt_vlan++;
+	}
 
 	if (full_table)
 		tvlv_tt_data->flags |= BATADV_TT_FULL_TABLE;
@@ -1867,7 +2242,7 @@ static int batadv_send_tt_request(struct batadv_priv *bat_priv,
 	batadv_inc_counter(bat_priv, BATADV_CNT_TT_REQUEST_TX);
 	batadv_tvlv_unicast_send(bat_priv, primary_if->net_dev->dev_addr,
 				 dst_orig_node->orig, BATADV_TVLV_TT, 1,
-				 tvlv_tt_data, sizeof(*tvlv_tt_data));
+				 tvlv_tt_data, size);
 	ret = true;
 
 out:
@@ -1899,10 +2274,13 @@ static bool batadv_send_other_tt_response(struct batadv_priv *bat_priv,
 {
 	struct batadv_orig_node *req_dst_orig_node;
 	struct batadv_orig_node *res_dst_orig_node = NULL;
+	struct batadv_tvlv_tt_change *tt_change;
 	struct batadv_tvlv_tt_data *tvlv_tt_data = NULL;
-	uint8_t orig_ttvn, req_ttvn;
-	uint16_t tt_len;
+	struct batadv_tvlv_tt_vlan_data *tt_vlan;
 	bool ret = false, full_table;
+	uint8_t orig_ttvn, req_ttvn;
+	uint16_t tvlv_len;
+	int32_t tt_len;
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
 		   "Received TT_REQUEST from %pM for ttvn: %u (%pM) [%c]\n",
@@ -1921,9 +2299,11 @@ static bool batadv_send_other_tt_response(struct batadv_priv *bat_priv,
 	orig_ttvn = (uint8_t)atomic_read(&req_dst_orig_node->last_ttvn);
 	req_ttvn = tt_data->ttvn;
 
+	tt_vlan = (struct batadv_tvlv_tt_vlan_data *)(tt_data + 1);
 	/* this node doesn't have the requested data */
 	if (orig_ttvn != req_ttvn ||
-	    tt_data->crc != htonl(req_dst_orig_node->tt_crc))
+	    !batadv_tt_global_check_crc(req_dst_orig_node, tt_vlan,
+					ntohs(tt_data->num_vlan)))
 		goto out;
 
 	/* If the full table has been explicitly requested */
@@ -1940,26 +2320,34 @@ static bool batadv_send_other_tt_response(struct batadv_priv *bat_priv,
 		spin_lock_bh(&req_dst_orig_node->tt_buff_lock);
 		tt_len = req_dst_orig_node->tt_buff_len;
 
-		tvlv_tt_data = kzalloc(sizeof(*tvlv_tt_data) + tt_len,
-				       GFP_ATOMIC);
-		if (!tvlv_tt_data)
+		tvlv_len = batadv_tt_prepare_tvlv_global_data(req_dst_orig_node,
+							      &tvlv_tt_data,
+							      &tt_change,
+							      &tt_len);
+		if (!tt_len)
 			goto unlock;
 
 		/* Copy the last orig_node's OGM buffer */
-		memcpy(tvlv_tt_data + 1, req_dst_orig_node->tt_buff,
+		memcpy(tt_change, req_dst_orig_node->tt_buff,
 		       req_dst_orig_node->tt_buff_len);
 		spin_unlock_bh(&req_dst_orig_node->tt_buff_lock);
 	} else {
-		tt_len = (uint16_t)atomic_read(&req_dst_orig_node->tt_size);
-		tt_len = batadv_tt_len(tt_len);
-
-		tvlv_tt_data = batadv_tt_tvlv_generate(bat_priv,
-						       bat_priv->tt.global_hash,
-						       tt_len,
-						       batadv_tt_global_valid,
-						       req_dst_orig_node);
-		if (!tvlv_tt_data)
+		/* allocate the tvlv, put the tt_data and all the tt_vlan_data
+		 * in the initial part
+		 */
+		tt_len = -1;
+		tvlv_len = batadv_tt_prepare_tvlv_global_data(req_dst_orig_node,
+							      &tvlv_tt_data,
+							      &tt_change,
+							      &tt_len);
+		if (!tt_len)
 			goto out;
+
+		/* fill the rest of the tvlv with the real TT entries */
+		batadv_tt_tvlv_generate(bat_priv, bat_priv->tt.global_hash,
+					tt_change, tt_len,
+					batadv_tt_global_valid,
+					req_dst_orig_node);
 	}
 
 	tvlv_tt_data->flags = BATADV_TT_RESPONSE;
@@ -1976,8 +2364,8 @@ static bool batadv_send_other_tt_response(struct batadv_priv *bat_priv,
 	batadv_inc_counter(bat_priv, BATADV_CNT_TT_RESPONSE_TX);
 
 	batadv_tvlv_unicast_send(bat_priv, req_dst_orig_node->orig,
-				 req_src, BATADV_TVLV_TT, 1,
-				 tvlv_tt_data, sizeof(*tvlv_tt_data) + tt_len);
+				 req_src, BATADV_TVLV_TT, 1, tvlv_tt_data,
+				 tvlv_len);
 
 	ret = true;
 	goto out;
@@ -2008,11 +2396,13 @@ static bool batadv_send_my_tt_response(struct batadv_priv *bat_priv,
 				       uint8_t *req_src)
 {
 	struct batadv_tvlv_tt_data *tvlv_tt_data = NULL;
-	struct batadv_orig_node *orig_node;
 	struct batadv_hard_iface *primary_if = NULL;
+	struct batadv_tvlv_tt_change *tt_change;
+	struct batadv_orig_node *orig_node;
 	uint8_t my_ttvn, req_ttvn;
+	uint16_t tvlv_len;
 	bool full_table;
-	uint16_t tt_len;
+	int32_t tt_len;
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
 		   "Received TT_REQUEST from %pM for ttvn: %u (me) [%c]\n",
@@ -2046,29 +2436,37 @@ static bool batadv_send_my_tt_response(struct batadv_priv *bat_priv,
 	 */
 	if (!full_table) {
 		spin_lock_bh(&bat_priv->tt.last_changeset_lock);
-		tt_len = bat_priv->tt.last_changeset_len;
 
-		tvlv_tt_data = kzalloc(sizeof(*tvlv_tt_data) + tt_len,
-				       GFP_ATOMIC);
-		if (!tvlv_tt_data)
+		tt_len = bat_priv->tt.last_changeset_len;
+		tvlv_len = batadv_tt_prepare_tvlv_local_data(bat_priv,
+							     &tvlv_tt_data,
+							     &tt_change,
+							     &tt_len);
+		if (!tt_len)
 			goto unlock;
 
 		/* Copy the last orig_node's OGM buffer */
-		memcpy(tvlv_tt_data + 1, bat_priv->tt.last_changeset,
+		memcpy(tt_change, bat_priv->tt.last_changeset,
 		       bat_priv->tt.last_changeset_len);
 		spin_unlock_bh(&bat_priv->tt.last_changeset_lock);
 	} else {
-		tt_len = (uint16_t)atomic_read(&bat_priv->tt.local_entry_num);
-		tt_len = batadv_tt_len(tt_len);
 		req_ttvn = (uint8_t)atomic_read(&bat_priv->tt.vn);
 
-		tvlv_tt_data = batadv_tt_tvlv_generate(bat_priv,
-						       bat_priv->tt.local_hash,
-						       tt_len,
-						       batadv_tt_local_valid,
-						       NULL);
-		if (!tvlv_tt_data)
+		/* allocate the tvlv, put the tt_data and all the tt_vlan_data
+		 * in the initial part
+		 */
+		tt_len = -1;
+		tvlv_len = batadv_tt_prepare_tvlv_local_data(bat_priv,
+							     &tvlv_tt_data,
+							     &tt_change,
+							     &tt_len);
+		if (!tt_len)
 			goto out;
+
+		/* fill the rest of the tvlv with the real TT entries */
+		batadv_tt_tvlv_generate(bat_priv, bat_priv->tt.local_hash,
+					tt_change, tt_len,
+					batadv_tt_local_valid, NULL);
 	}
 
 	tvlv_tt_data->flags = BATADV_TT_RESPONSE;
@@ -2084,8 +2482,8 @@ static bool batadv_send_my_tt_response(struct batadv_priv *bat_priv,
 	batadv_inc_counter(bat_priv, BATADV_CNT_TT_RESPONSE_TX);
 
 	batadv_tvlv_unicast_send(bat_priv, primary_if->net_dev->dev_addr,
-				 req_src, BATADV_TVLV_TT, 1,
-				 tvlv_tt_data, sizeof(*tvlv_tt_data) + tt_len);
+				 req_src, BATADV_TVLV_TT, 1, tvlv_tt_data,
+				 tvlv_len);
 
 	goto out;
 
@@ -2161,8 +2559,9 @@ static void _batadv_tt_update_changes(struct batadv_priv *bat_priv,
 }
 
 static void batadv_tt_fill_gtable(struct batadv_priv *bat_priv,
-				  struct batadv_tvlv_tt_data *tt_data,
-				  uint8_t *resp_src, uint16_t num_entries)
+				  struct batadv_tvlv_tt_change *tt_change,
+				  uint8_t ttvn, uint8_t *resp_src,
+				  uint16_t num_entries)
 {
 	struct batadv_orig_node *orig_node;
 
@@ -2173,9 +2572,8 @@ static void batadv_tt_fill_gtable(struct batadv_priv *bat_priv,
 	/* Purge the old table first.. */
 	batadv_tt_global_del_orig(bat_priv, orig_node, "Received full table");
 
-	_batadv_tt_update_changes(bat_priv, orig_node,
-				  (struct batadv_tvlv_tt_change *)(tt_data + 1),
-				  num_entries, tt_data->ttvn);
+	_batadv_tt_update_changes(bat_priv, orig_node, tt_change, num_entries,
+				  ttvn);
 
 	spin_lock_bh(&orig_node->tt_buff_lock);
 	kfree(orig_node->tt_buff);
@@ -2183,7 +2581,7 @@ static void batadv_tt_fill_gtable(struct batadv_priv *bat_priv,
 	orig_node->tt_buff = NULL;
 	spin_unlock_bh(&orig_node->tt_buff_lock);
 
-	atomic_set(&orig_node->last_ttvn, tt_data->ttvn);
+	atomic_set(&orig_node->last_ttvn, ttvn);
 
 out:
 	if (orig_node)
@@ -2247,6 +2645,8 @@ static void batadv_handle_tt_response(struct batadv_priv *bat_priv,
 	struct batadv_tt_req_node *node, *safe;
 	struct batadv_orig_node *orig_node = NULL;
 	struct batadv_tvlv_tt_change *tt_change;
+	uint8_t *tvlv_ptr = (uint8_t *)tt_data;
+	uint16_t change_offset;
 
 	batadv_dbg(BATADV_DBG_TT, bat_priv,
 		   "Received TT_RESPONSE from %pM for ttvn %d t_size: %d [%c]\n",
@@ -2263,16 +2663,22 @@ static void batadv_handle_tt_response(struct batadv_priv *bat_priv,
 
 	spin_lock_bh(&orig_node->tt_lock);
 
+	change_offset = sizeof(struct batadv_tvlv_tt_vlan_data);
+	change_offset *= ntohs(tt_data->num_vlan);
+	change_offset += sizeof(*tt_data);
+	tvlv_ptr += change_offset;
+
+	tt_change = (struct batadv_tvlv_tt_change *)tvlv_ptr;
 	if (tt_data->flags & BATADV_TT_FULL_TABLE) {
-		batadv_tt_fill_gtable(bat_priv, tt_data, resp_src, num_entries);
+		batadv_tt_fill_gtable(bat_priv, tt_change, tt_data->ttvn,
+				      resp_src, num_entries);
 	} else {
-		tt_change = (struct batadv_tvlv_tt_change *)(tt_data + 1);
 		batadv_tt_update_changes(bat_priv, orig_node, num_entries,
 					 tt_data->ttvn, tt_change);
 	}
 
 	/* Recalculate the CRC for this orig_node and store it */
-	orig_node->tt_crc = batadv_tt_global_crc(bat_priv, orig_node);
+	batadv_tt_global_update_crc(bat_priv, orig_node);
 
 	spin_unlock_bh(&orig_node->tt_lock);
 
@@ -2284,6 +2690,7 @@ static void batadv_handle_tt_response(struct batadv_priv *bat_priv,
 		list_del(&node->list);
 		kfree(node);
 	}
+
 	spin_unlock_bh(&bat_priv->tt.req_list_lock);
 out:
 	if (orig_node)
@@ -2452,19 +2859,25 @@ void batadv_tt_free(struct batadv_priv *bat_priv)
 	kfree(bat_priv->tt.last_changeset);
 }
 
-/* This function will enable or disable the specified flags for all the entries
- * in the given hash table and returns the number of modified entries
+/**
+ * batadv_tt_local_set_flags - set or unset the specified flags on the local
+ *  table and possibly count them in the TT size
+ * @bat_priv: the bat priv with all the soft interface information
+ * @flags: the flag to switch
+ * @enable: whether to set or unset the flag
+ * @count: whether to increase the TT size by the number of changed entries
  */
-static uint16_t batadv_tt_set_flags(struct batadv_hashtable *hash,
-				    uint16_t flags, bool enable)
+static void batadv_tt_local_set_flags(struct batadv_priv *bat_priv,
+				      uint16_t flags, bool enable, bool count)
 {
-	uint32_t i;
+	struct batadv_hashtable *hash = bat_priv->tt.local_hash;
+	struct batadv_tt_common_entry *tt_common_entry;
 	uint16_t changed_num = 0;
 	struct hlist_head *head;
-	struct batadv_tt_common_entry *tt_common_entry;
+	uint32_t i;
 
 	if (!hash)
-		goto out;
+		return;
 
 	for (i = 0; i < hash->size; i++) {
 		head = &hash->table[i];
@@ -2482,11 +2895,15 @@ static uint16_t batadv_tt_set_flags(struct batadv_hashtable *hash,
 				tt_common_entry->flags &= ~flags;
 			}
 			changed_num++;
+
+			if (!count)
+				continue;
+
+			batadv_tt_local_size_inc(bat_priv,
+						 tt_common_entry->vid);
 		}
 		rcu_read_unlock();
 	}
-out:
-	return changed_num;
 }
 
 /* Purge out all the tt local entries marked with BATADV_TT_CLIENT_PENDING */
@@ -2518,7 +2935,7 @@ static void batadv_tt_local_purge_pending_clients(struct batadv_priv *bat_priv)
 				   tt_common->addr,
 				   BATADV_PRINT_VID(tt_common->vid));
 
-			atomic_dec(&bat_priv->tt.local_entry_num);
+			batadv_tt_local_size_dec(bat_priv, tt_common->vid);
 			hlist_del_rcu(&tt_common->hash_entry);
 			tt_local = container_of(tt_common,
 						struct batadv_tt_local_entry,
@@ -2536,8 +2953,6 @@ static void batadv_tt_local_purge_pending_clients(struct batadv_priv *bat_priv)
  */
 void batadv_tt_local_commit_changes(struct batadv_priv *bat_priv)
 {
-	uint16_t changed_num = 0;
-
 	spin_lock_bh(&bat_priv->tt.commit_lock);
 
 	if (atomic_read(&bat_priv->tt.local_changes) < 1) {
@@ -2546,13 +2961,10 @@ void batadv_tt_local_commit_changes(struct batadv_priv *bat_priv)
 		goto out;
 	}
 
-	changed_num = batadv_tt_set_flags(bat_priv->tt.local_hash,
-					  BATADV_TT_CLIENT_NEW, false);
+	batadv_tt_local_set_flags(bat_priv, BATADV_TT_CLIENT_NEW, false, true);
 
-	/* all reset entries have to be counted as local entries */
-	atomic_add(changed_num, &bat_priv->tt.local_entry_num);
 	batadv_tt_local_purge_pending_clients(bat_priv);
-	bat_priv->tt.local_crc = batadv_tt_local_crc(bat_priv);
+	batadv_tt_local_update_crc(bat_priv);
 
 	/* Increment the TTVN only once per OGM interval */
 	atomic_inc(&bat_priv->tt.vn);
@@ -2608,25 +3020,28 @@ out:
  *  information received via ogms
  * @bat_priv: the bat priv with all the soft interface information
  * @orig: the orig_node of the ogm
- * @tt_buff: buffer holding the tt information
+ * @tt_vlan: pointer to the first tvlv VLAN entry
+ * @tt_num_vlan: number of tvlv VLAN entries
+ * @tt_change: pointer to the first entry in the TT buffer
  * @tt_num_changes: number of tt changes inside the tt buffer
  * @ttvn: translation table version number of this changeset
  * @tt_crc: crc32 checksum of orig node's translation table
  */
 static void batadv_tt_update_orig(struct batadv_priv *bat_priv,
 				  struct batadv_orig_node *orig_node,
-				  const unsigned char *tt_buff,
-				  uint16_t tt_num_changes, uint8_t ttvn,
-				  uint32_t tt_crc)
+				  const void *tt_buff, uint16_t tt_num_vlan,
+				  struct batadv_tvlv_tt_change *tt_change,
+				  uint16_t tt_num_changes, uint8_t ttvn)
 {
 	uint8_t orig_ttvn = (uint8_t)atomic_read(&orig_node->last_ttvn);
+	struct batadv_tvlv_tt_vlan_data *tt_vlan;
 	bool full_table = true;
-	struct batadv_tvlv_tt_change *tt_change;
 
 	/* don't care about a backbone gateways updates. */
 	if (batadv_bla_is_backbone_gw_orig(bat_priv, orig_node->orig))
 		return;
 
+	tt_vlan = (struct batadv_tvlv_tt_vlan_data *)tt_buff;
 	/* orig table not initialised AND first diff is in the OGM OR the ttvn
 	 * increased by one -> we can apply the attached changes
 	 */
@@ -2652,7 +3067,7 @@ static void batadv_tt_update_orig(struct batadv_priv *bat_priv,
 		 * prefer to recompute it to spot any possible inconsistency
 		 * in the global table
 		 */
-		orig_node->tt_crc = batadv_tt_global_crc(bat_priv, orig_node);
+		batadv_tt_global_update_crc(bat_priv, orig_node);
 
 		spin_unlock_bh(&orig_node->tt_lock);
 
@@ -2665,21 +3080,24 @@ static void batadv_tt_update_orig(struct batadv_priv *bat_priv,
 		 * checking the CRC value is mandatory to detect the
 		 * inconsistency
 		 */
-		if (orig_node->tt_crc != tt_crc)
+		if (!batadv_tt_global_check_crc(orig_node, tt_vlan,
+						tt_num_vlan))
 			goto request_table;
 	} else {
 		/* if we missed more than one change or our tables are not
 		 * in sync anymore -> request fresh tt data
 		 */
 		if (!orig_node->tt_initialised || ttvn != orig_ttvn ||
-		    orig_node->tt_crc != tt_crc) {
+		    !batadv_tt_global_check_crc(orig_node, tt_vlan,
+						tt_num_vlan)) {
 request_table:
 			batadv_dbg(BATADV_DBG_TT, bat_priv,
-				   "TT inconsistency for %pM. Need to retrieve the correct information (ttvn: %u last_ttvn: %u crc: %#.8x last_crc: %#.8x num_changes: %u)\n",
-				   orig_node->orig, ttvn, orig_ttvn, tt_crc,
-				   orig_node->tt_crc, tt_num_changes);
+				   "TT inconsistency for %pM. Need to retrieve the correct information (ttvn: %u last_ttvn: %u num_changes: %u)\n",
+				   orig_node->orig, ttvn, orig_ttvn,
+				   tt_num_changes);
 			batadv_send_tt_request(bat_priv, orig_node, ttvn,
-					       tt_crc, full_table);
+					       tt_vlan, tt_num_vlan,
+					       full_table);
 			return;
 		}
 	}
@@ -2774,12 +3192,13 @@ out:
  */
 static void batadv_tt_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv,
 					  struct batadv_orig_node *orig,
-					  uint8_t flags,
-					  void *tvlv_value,
+					  uint8_t flags, void *tvlv_value,
 					  uint16_t tvlv_value_len)
 {
+	struct batadv_tvlv_tt_vlan_data *tt_vlan;
+	struct batadv_tvlv_tt_change *tt_change;
 	struct batadv_tvlv_tt_data *tt_data;
-	uint16_t num_entries;
+	uint16_t num_entries, num_vlan;
 
 	if (tvlv_value_len < sizeof(*tt_data))
 		return;
@@ -2787,11 +3206,19 @@ static void batadv_tt_tvlv_ogm_handler_v1(struct batadv_priv *bat_priv,
 	tt_data = (struct batadv_tvlv_tt_data *)tvlv_value;
 	tvlv_value_len -= sizeof(*tt_data);
 
+	num_vlan = ntohs(tt_data->num_vlan);
+
+	if (tvlv_value_len < sizeof(*tt_vlan) * num_vlan)
+		return;
+
+	tt_vlan = (struct batadv_tvlv_tt_vlan_data *)(tt_data + 1);
+	tt_change = (struct batadv_tvlv_tt_change *)(tt_vlan + num_vlan);
+	tvlv_value_len -= sizeof(*tt_vlan) * num_vlan;
+
 	num_entries = batadv_tt_entries(tvlv_value_len);
 
-	batadv_tt_update_orig(bat_priv, orig,
-			      (unsigned char *)(tt_data + 1),
-			      num_entries, tt_data->ttvn, ntohl(tt_data->crc));
+	batadv_tt_update_orig(bat_priv, orig, tt_vlan, num_vlan, tt_change,
+			      num_entries, tt_data->ttvn);
 }
 
 /**
@@ -2812,7 +3239,7 @@ static int batadv_tt_tvlv_unicast_handler_v1(struct batadv_priv *bat_priv,
 					     uint16_t tvlv_value_len)
 {
 	struct batadv_tvlv_tt_data *tt_data;
-	uint16_t num_entries;
+	uint16_t tt_vlan_len, tt_num_entries;
 	char tt_flag;
 	bool ret;
 
@@ -2822,7 +3249,14 @@ static int batadv_tt_tvlv_unicast_handler_v1(struct batadv_priv *bat_priv,
 	tt_data = (struct batadv_tvlv_tt_data *)tvlv_value;
 	tvlv_value_len -= sizeof(*tt_data);
 
-	num_entries = batadv_tt_entries(tvlv_value_len);
+	tt_vlan_len = sizeof(struct batadv_tvlv_tt_vlan_data);
+	tt_vlan_len *= ntohs(tt_data->num_vlan);
+
+	if (tvlv_value_len < tt_vlan_len)
+		return NET_RX_SUCCESS;
+
+	tvlv_value_len -= tt_vlan_len;
+	tt_num_entries = batadv_tt_entries(tvlv_value_len);
 
 	switch (tt_data->flags & BATADV_TT_DATA_TYPE_MASK) {
 	case BATADV_TT_REQUEST:
@@ -2850,7 +3284,7 @@ static int batadv_tt_tvlv_unicast_handler_v1(struct batadv_priv *bat_priv,
 
 		if (batadv_is_my_mac(bat_priv, dst)) {
 			batadv_handle_tt_response(bat_priv, tt_data,
-						  src, num_entries);
+						  src, tt_num_entries);
 			return NET_RX_SUCCESS;
 		}
 
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index bd95d612260c..ff53933b5a59 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -106,6 +106,32 @@ struct batadv_frag_list_entry {
 	uint8_t no;
 };
 
+/**
+ * struct batadv_vlan_tt - VLAN specific TT attributes
+ * @crc: CRC32 checksum of the entries belonging to this vlan
+ * @num_entries: number of TT entries for this VLAN
+ */
+struct batadv_vlan_tt {
+	uint32_t crc;
+	atomic_t num_entries;
+};
+
+/**
+ * batadv_orig_node_vlan - VLAN specific data per orig_node
+ * @vid: the VLAN identifier
+ * @tt: VLAN specific TT attributes
+ * @list: list node for orig_node::vlan_list
+ * @refcount: number of context where this object is currently in use
+ * @rcu: struct used for freeing in a RCU-safe manner
+ */
+struct batadv_orig_node_vlan {
+	unsigned short vid;
+	struct batadv_vlan_tt tt;
+	struct list_head list;
+	atomic_t refcount;
+	struct rcu_head rcu;
+};
+
 /**
  * struct batadv_orig_node - structure for orig_list maintaining nodes of mesh
  * @orig: originator ethernet address
@@ -120,12 +146,10 @@ struct batadv_frag_list_entry {
  * @batman_seqno_reset: time when the batman seqno window was reset
  * @capabilities: announced capabilities of this originator
  * @last_ttvn: last seen translation table version number
- * @tt_crc: CRC of the translation table
  * @tt_buff: last tt changeset this node received from the orig node
  * @tt_buff_len: length of the last tt changeset this node received from the
  *  orig node
  * @tt_buff_lock: lock that protects tt_buff and tt_buff_len
- * @tt_size: number of global TT entries announced by the orig node
  * @tt_initialised: bool keeping track of whether or not this node have received
  *  any translation table information from the orig node yet
  * @tt_lock: prevents from updating the table while reading it. Table update is
@@ -154,6 +178,9 @@ struct batadv_frag_list_entry {
  * @in_coding_list_lock: protects in_coding_list
  * @out_coding_list_lock: protects out_coding_list
  * @fragments: array with heads for fragment chains
+ * @vlan_list: a list of orig_node_vlan structs, one per VLAN served by the
+ *  originator represented by this object
+ * @vlan_list_lock: lock protecting vlan_list
  */
 struct batadv_orig_node {
 	uint8_t orig[ETH_ALEN];
@@ -169,11 +196,9 @@ struct batadv_orig_node {
 	unsigned long batman_seqno_reset;
 	uint8_t capabilities;
 	atomic_t last_ttvn;
-	uint32_t tt_crc;
 	unsigned char *tt_buff;
 	int16_t tt_buff_len;
 	spinlock_t tt_buff_lock; /* protects tt_buff & tt_buff_len */
-	atomic_t tt_size;
 	bool tt_initialised;
 	/* prevents from changing the table while reading it */
 	spinlock_t tt_lock;
@@ -203,6 +228,8 @@ struct batadv_orig_node {
 	spinlock_t out_coding_list_lock; /* Protects out_coding_list */
 #endif
 	struct batadv_frag_table_entry fragments[BATADV_FRAG_BUFFER_COUNT];
+	struct list_head vlan_list;
+	spinlock_t vlan_list_lock; /* protects vlan_list */
 };
 
 /**
@@ -389,8 +416,6 @@ enum batadv_counters {
  * @changes_list_lock: lock protecting changes_list
  * @req_list_lock: lock protecting req_list
  * @roam_list_lock: lock protecting roam_list
- * @local_entry_num: number of entries in the local hash table
- * @local_crc: Checksum of the local table, recomputed before sending a new OGM
  * @last_changeset: last tt changeset this host has generated
  * @last_changeset_len: length of last tt changeset this host has generated
  * @last_changeset_lock: lock protecting last_changeset & last_changeset_len
@@ -413,8 +438,6 @@ struct batadv_priv_tt {
 	spinlock_t changes_list_lock; /* protects changes */
 	spinlock_t req_list_lock; /* protects req_list */
 	spinlock_t roam_list_lock; /* protects roam_list */
-	atomic_t local_entry_num;
-	uint32_t local_crc;
 	unsigned char *last_changeset;
 	int16_t last_changeset_len;
 	/* protects last_changeset & last_changeset_len */
@@ -548,6 +571,7 @@ struct batadv_priv_nc {
  * @vid: VLAN identifier
  * @kobj: kobject for sysfs vlan subdirectory
  * @ap_isolation: AP isolation state
+ * @tt: TT private attributes (VLAN specific)
  * @list: list node for bat_priv::softif_vlan_list
  * @refcount: number of context where this object is currently in use
  * @rcu: struct used for freeing in a RCU-safe manner
@@ -556,6 +580,7 @@ struct batadv_softif_vlan {
 	unsigned short vid;
 	struct kobject *kobj;
 	atomic_t ap_isolation;		/* boolean */
+	struct batadv_vlan_tt tt;
 	struct hlist_node list;
 	atomic_t refcount;
 	struct rcu_head rcu;
-- 
cgit 


From 95fb130d68656174a417ad19e7bc8e8ecf382dab Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Wed, 7 Aug 2013 18:28:55 +0200
Subject: batman-adv: make the TT global purge routine VLAN specific

Instead of unconditionally removing all the TT entries
served by a given originator, make tt_global_orig_del()
remove only entries matching a given VLAN identifier
provided as argument.

If such argument is negative all the global entries
served by the originator are removed.

This change is used into the BLA code to purge entries
served by a newly discovered Backbone node, but limiting
the operation only to those connected to the VLAN where the
backbone has been discovered.

Cc: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/bridge_loop_avoidance.c |  4 ++--
 net/batman-adv/originator.c            |  2 +-
 net/batman-adv/routing.c               |  2 +-
 net/batman-adv/translation-table.c     | 17 ++++++++++++++++-
 net/batman-adv/translation-table.h     |  2 +-
 5 files changed, 21 insertions(+), 6 deletions(-)

diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index e8a6458081e8..3b3867db88a7 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -411,10 +411,10 @@ batadv_bla_get_backbone_gw(struct batadv_priv *bat_priv, uint8_t *orig,
 		return NULL;
 	}
 
-	/* this is a gateway now, remove any tt entries */
+	/* this is a gateway now, remove any TT entry on this VLAN */
 	orig_node = batadv_orig_hash_find(bat_priv, orig);
 	if (orig_node) {
-		batadv_tt_global_del_orig(bat_priv, orig_node,
+		batadv_tt_global_del_orig(bat_priv, orig_node, vid,
 					  "became a backbone gateway");
 		batadv_orig_node_free_ref(orig_node);
 	}
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index 7a499dad53d3..ee1d84724205 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -230,7 +230,7 @@ static void batadv_orig_node_free_rcu(struct rcu_head *rcu)
 
 	batadv_frag_purge_orig(orig_node, NULL);
 
-	batadv_tt_global_del_orig(orig_node->bat_priv, orig_node,
+	batadv_tt_global_del_orig(orig_node->bat_priv, orig_node, -1,
 				  "originator timed out");
 
 	kfree(orig_node->tt_buff);
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 149ef57e78c3..4bcf22129ffe 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -47,7 +47,7 @@ static void _batadv_update_route(struct batadv_priv *bat_priv,
 	if ((curr_router) && (!neigh_node)) {
 		batadv_dbg(BATADV_DBG_ROUTES, bat_priv,
 			   "Deleting route towards: %pM\n", orig_node->orig);
-		batadv_tt_global_del_orig(bat_priv, orig_node,
+		batadv_tt_global_del_orig(bat_priv, orig_node, -1,
 					  "Deleted route towards originator");
 
 	/* route added */
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 41a8387c5ef8..4c313ff8b12f 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -1581,8 +1581,18 @@ out:
 		batadv_tt_local_entry_free_ref(local_entry);
 }
 
+/**
+ * batadv_tt_global_del_orig - remove all the TT global entries belonging to the
+ *  given originator matching the provided vid
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig_node: the originator owning the entries to remove
+ * @match_vid: the VLAN identifier to match. If negative all the entries will be
+ *  removed
+ * @message: debug message to print as "reason"
+ */
 void batadv_tt_global_del_orig(struct batadv_priv *bat_priv,
 			       struct batadv_orig_node *orig_node,
+			       int32_t match_vid,
 			       const char *message)
 {
 	struct batadv_tt_global_entry *tt_global;
@@ -1604,6 +1614,10 @@ void batadv_tt_global_del_orig(struct batadv_priv *bat_priv,
 		spin_lock_bh(list_lock);
 		hlist_for_each_entry_safe(tt_common_entry, safe,
 					  head, hash_entry) {
+			/* remove only matching entries */
+			if (match_vid >= 0 && tt_common_entry->vid != match_vid)
+				continue;
+
 			tt_global = container_of(tt_common_entry,
 						 struct batadv_tt_global_entry,
 						 common);
@@ -2570,7 +2584,8 @@ static void batadv_tt_fill_gtable(struct batadv_priv *bat_priv,
 		goto out;
 
 	/* Purge the old table first.. */
-	batadv_tt_global_del_orig(bat_priv, orig_node, "Received full table");
+	batadv_tt_global_del_orig(bat_priv, orig_node, -1,
+				  "Received full table");
 
 	_batadv_tt_update_changes(bat_priv, orig_node, tt_change, num_entries,
 				  ttvn);
diff --git a/net/batman-adv/translation-table.h b/net/batman-adv/translation-table.h
index c6bf33c04855..dc6db4e00a43 100644
--- a/net/batman-adv/translation-table.h
+++ b/net/batman-adv/translation-table.h
@@ -30,7 +30,7 @@ int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset);
 int batadv_tt_global_seq_print_text(struct seq_file *seq, void *offset);
 void batadv_tt_global_del_orig(struct batadv_priv *bat_priv,
 			       struct batadv_orig_node *orig_node,
-			       const char *message);
+			       int32_t match_vid, const char *message);
 struct batadv_orig_node *batadv_transtable_search(struct batadv_priv *bat_priv,
 						  const uint8_t *src,
 						  const uint8_t *addr,
-- 
cgit 


From cfd4f75701b6b13b1ec74e6f65ad0d1969c19247 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Wed, 7 Aug 2013 18:28:56 +0200
Subject: batman-adv: make the backbone gw check VLAN specific

The backbone gw check has to be VLAN specific so that code
using it can specify VID where the check has to be done.

In the TT code, the check has been moved into the
tt_global_add() function so that it can be performed on a
per-entry basis instead of ignoring all the TT data received
from another backbone node. Only TT global entries belonging
to the VLAN where the backbone node is connected to are
skipped.
All the other spots where the TT code was checking whether a
node is a backbone have been removed.

Moreover, batadv_bla_is_backbone_gw_orig() now returns bool
since it used to return only 1 or 0.

Cc: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/bridge_loop_avoidance.c | 19 +++++++++-------
 net/batman-adv/bridge_loop_avoidance.h | 10 +++++----
 net/batman-adv/translation-table.c     | 41 +++++++++-------------------------
 3 files changed, 27 insertions(+), 43 deletions(-)

diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c
index 3b3867db88a7..28eb5e6d0a02 100644
--- a/net/batman-adv/bridge_loop_avoidance.c
+++ b/net/batman-adv/bridge_loop_avoidance.c
@@ -1315,12 +1315,14 @@ out:
 
 /* @bat_priv: the bat priv with all the soft interface information
  * @orig: originator mac address
+ * @vid: VLAN identifier
  *
- * check if the originator is a gateway for any VLAN ID.
+ * Check if the originator is a gateway for the VLAN identified by vid.
  *
- * returns 1 if it is found, 0 otherwise
+ * Returns true if orig is a backbone for this vid, false otherwise.
  */
-int batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, uint8_t *orig)
+bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, uint8_t *orig,
+				    unsigned short vid)
 {
 	struct batadv_hashtable *hash = bat_priv->bla.backbone_hash;
 	struct hlist_head *head;
@@ -1328,25 +1330,26 @@ int batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, uint8_t *orig)
 	int i;
 
 	if (!atomic_read(&bat_priv->bridge_loop_avoidance))
-		return 0;
+		return false;
 
 	if (!hash)
-		return 0;
+		return false;
 
 	for (i = 0; i < hash->size; i++) {
 		head = &hash->table[i];
 
 		rcu_read_lock();
 		hlist_for_each_entry_rcu(backbone_gw, head, hash_entry) {
-			if (batadv_compare_eth(backbone_gw->orig, orig)) {
+			if (batadv_compare_eth(backbone_gw->orig, orig) &&
+			    backbone_gw->vid == vid) {
 				rcu_read_unlock();
-				return 1;
+				return true;
 			}
 		}
 		rcu_read_unlock();
 	}
 
-	return 0;
+	return false;
 }
 
 
diff --git a/net/batman-adv/bridge_loop_avoidance.h b/net/batman-adv/bridge_loop_avoidance.h
index 4b102e71e5bd..da173e760e77 100644
--- a/net/batman-adv/bridge_loop_avoidance.h
+++ b/net/batman-adv/bridge_loop_avoidance.h
@@ -30,7 +30,8 @@ int batadv_bla_is_backbone_gw(struct sk_buff *skb,
 int batadv_bla_claim_table_seq_print_text(struct seq_file *seq, void *offset);
 int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
 					     void *offset);
-int batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, uint8_t *orig);
+bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv, uint8_t *orig,
+				    unsigned short vid);
 int batadv_bla_check_bcast_duplist(struct batadv_priv *bat_priv,
 				   struct sk_buff *skb);
 void batadv_bla_update_orig_address(struct batadv_priv *bat_priv,
@@ -74,10 +75,11 @@ static inline int batadv_bla_backbone_table_seq_print_text(struct seq_file *seq,
 	return 0;
 }
 
-static inline int batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv,
-						 uint8_t *orig)
+static inline bool batadv_bla_is_backbone_gw_orig(struct batadv_priv *bat_priv,
+						  uint8_t *orig,
+						  unsigned short vid)
 {
-	return 0;
+	return false;
 }
 
 static inline int
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 4c313ff8b12f..7731eaed737d 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -1153,6 +1153,10 @@ static bool batadv_tt_global_add(struct batadv_priv *bat_priv,
 	struct batadv_tt_common_entry *common;
 	uint16_t local_flags;
 
+	/* ignore global entries from backbone nodes */
+	if (batadv_bla_is_backbone_gw_orig(bat_priv, orig_node->orig, vid))
+		return true;
+
 	tt_global_entry = batadv_tt_global_hash_find(bat_priv, tt_addr, vid);
 	tt_local_entry = batadv_tt_local_hash_find(bat_priv, tt_addr, vid);
 
@@ -2135,7 +2139,8 @@ static bool batadv_tt_global_check_crc(struct batadv_orig_node *orig_node,
 		 * the CRC as we ignore all the global entries over it
 		 */
 		if (batadv_bla_is_backbone_gw_orig(orig_node->bat_priv,
-						   orig_node->orig))
+						   orig_node->orig,
+						   ntohs(tt_vlan_tmp->vid)))
 			continue;
 
 		vlan = batadv_orig_node_vlan_get(orig_node,
@@ -2183,7 +2188,8 @@ static void batadv_tt_global_update_crc(struct batadv_priv *bat_priv,
 		/* if orig_node is a backbone node for this VLAN, don't compute
 		 * the CRC as we ignore all the global entries over it
 		 */
-		if (batadv_bla_is_backbone_gw_orig(bat_priv, orig_node->orig))
+		if (batadv_bla_is_backbone_gw_orig(bat_priv, orig_node->orig,
+						   vlan->vid))
 			continue;
 
 		crc = batadv_tt_global_crc(bat_priv, orig_node, vlan->vid);
@@ -2527,16 +2533,11 @@ static bool batadv_send_tt_response(struct batadv_priv *bat_priv,
 				    struct batadv_tvlv_tt_data *tt_data,
 				    uint8_t *req_src, uint8_t *req_dst)
 {
-	if (batadv_is_my_mac(bat_priv, req_dst)) {
-		/* don't answer backbone gws! */
-		if (batadv_bla_is_backbone_gw_orig(bat_priv, req_src))
-			return true;
-
+	if (batadv_is_my_mac(bat_priv, req_dst))
 		return batadv_send_my_tt_response(bat_priv, tt_data, req_src);
-	} else {
+	else
 		return batadv_send_other_tt_response(bat_priv, tt_data,
 						     req_src, req_dst);
-	}
 }
 
 static void _batadv_tt_update_changes(struct batadv_priv *bat_priv,
@@ -2668,10 +2669,6 @@ static void batadv_handle_tt_response(struct batadv_priv *bat_priv,
 		   resp_src, tt_data->ttvn, num_entries,
 		   (tt_data->flags & BATADV_TT_FULL_TABLE ? 'F' : '.'));
 
-	/* we should have never asked a backbone gw */
-	if (batadv_bla_is_backbone_gw_orig(bat_priv, resp_src))
-		goto out;
-
 	orig_node = batadv_orig_hash_find(bat_priv, resp_src);
 	if (!orig_node)
 		goto out;
@@ -3052,10 +3049,6 @@ static void batadv_tt_update_orig(struct batadv_priv *bat_priv,
 	struct batadv_tvlv_tt_vlan_data *tt_vlan;
 	bool full_table = true;
 
-	/* don't care about a backbone gateways updates. */
-	if (batadv_bla_is_backbone_gw_orig(bat_priv, orig_node->orig))
-		return;
-
 	tt_vlan = (struct batadv_tvlv_tt_vlan_data *)tt_buff;
 	/* orig table not initialised AND first diff is in the OGM OR the ttvn
 	 * increased by one -> we can apply the attached changes
@@ -3177,13 +3170,6 @@ bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
 {
 	bool ret = false;
 
-	/* if the originator is a backbone node (meaning it belongs to the same
-	 * LAN of this node) the temporary client must not be added because to
-	 * reach such destination the node must use the LAN instead of the mesh
-	 */
-	if (batadv_bla_is_backbone_gw_orig(bat_priv, orig_node->orig))
-		goto out;
-
 	if (!batadv_tt_global_add(bat_priv, orig_node, addr, vid,
 				  BATADV_TT_CLIENT_TEMP,
 				  atomic_read(&orig_node->last_ttvn)))
@@ -3344,13 +3330,6 @@ static int batadv_roam_tvlv_unicast_handler_v1(struct batadv_priv *bat_priv,
 	if (!batadv_is_my_mac(bat_priv, dst))
 		return NET_RX_DROP;
 
-	/* check if it is a backbone gateway. we don't accept
-	 * roaming advertisement from it, as it has the same
-	 * entries as we have.
-	 */
-	if (batadv_bla_is_backbone_gw_orig(bat_priv, src))
-		goto out;
-
 	if (tvlv_value_len < sizeof(*roaming_adv))
 		goto out;
 
-- 
cgit 


From 5a980686941805744841dc1460a676ed6ce5b5c3 Mon Sep 17 00:00:00 2001
From: Archana kumari <archanakumari959@gmail.com>
Date: Sat, 19 Oct 2013 17:41:27 +0530
Subject: staging: wlags49_h2: fixed space prohibited warnings in hcf.h

This patch fixes the following warnings in hcf.c:
"space prohibited between function name and open parenthesis '(' "

"space prohibited before that close parenthesis ')' ".

Signed-off-by: Archana kumari <archanakumari959@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/wlags49_h2/hcf.h | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/wlags49_h2/hcf.h b/drivers/staging/wlags49_h2/hcf.h
index 2abeaa11d8ca..71b44653690c 100644
--- a/drivers/staging/wlags49_h2/hcf.h
+++ b/drivers/staging/wlags49_h2/hcf.h
@@ -372,22 +372,22 @@ typedef IFB_STRCT*	IFBP;
 /**********************   W C I    F U N C T I O N S    P R O T O T Y P E S   ******************************/
 /***********************************************************************************************************/
 
-EXTERN_C int		 hcf_action			(IFBP ifbp, hcf_16 cmd );
-EXTERN_C int		 hcf_connect		(IFBP ifbp, hcf_io io_base );
-EXTERN_C int		 hcf_get_info		(IFBP ifbp, LTVP ltvp );
-EXTERN_C int		 hcf_service_nic	(IFBP ifbp, wci_bufp bufp, unsigned int len );
-EXTERN_C int		 hcf_cntl			(IFBP ifbp, hcf_16 cmd );
-EXTERN_C int		 hcf_put_info		(IFBP ifbp, LTVP ltvp );
-EXTERN_C int		 hcf_rcv_msg		(IFBP ifbp, DESC_STRCT *descp, unsigned int offset );
-EXTERN_C int		 hcf_send_msg       (IFBP ifbp, DESC_STRCT *dp, hcf_16 tx_cntl );
+EXTERN_C int hcf_action(IFBP ifbp, hcf_16 cmd);
+EXTERN_C int hcf_connect(IFBP ifbp, hcf_io io_base);
+EXTERN_C int hcf_get_info(IFBP ifbp, LTVP ltvp);
+EXTERN_C int hcf_service_nic(IFBP ifbp, wci_bufp bufp, unsigned int len);
+EXTERN_C int hcf_cntl(IFBP ifbp, hcf_16 cmd);
+EXTERN_C int hcf_put_info(IFBP ifbp, LTVP ltvp);
+EXTERN_C int hcf_rcv_msg(IFBP ifbp, DESC_STRCT *descp, unsigned int offset);
+EXTERN_C int hcf_send_msg(IFBP ifbp, DESC_STRCT *dp, hcf_16 tx_cntl);
 #if HCF_DMA
-EXTERN_C void		 hcf_dma_tx_put 	(IFBP ifbp, DESC_STRCT *d, hcf_16 tx_cntl );
+EXTERN_C void hcf_dma_tx_put(IFBP ifbp, DESC_STRCT *d, hcf_16 tx_cntl);
 EXTERN_C DESC_STRCT* hcf_dma_tx_get		(IFBP ifbp );
 EXTERN_C DESC_STRCT* hcf_dma_rx_get		(IFBP ifbp );
-EXTERN_C void		 hcf_dma_rx_put		(IFBP ifbp, DESC_STRCT *d );
+EXTERN_C void hcf_dma_rx_put(IFBP ifbp, DESC_STRCT *d);
 #endif // HCF_DMA
 #if (HCF_ASSERT) & HCF_ASSERT_LNK_MSF_RTN
-EXTERN_C void		 msf_assert	 		(unsigned int line_number, hcf_16 trace, hcf_32 qual );
+EXTERN_C void msf_assert(unsigned int line_number, hcf_16 trace, hcf_32 qual);
 #endif // HCF_ASSERT_LNK_MSF_RTN
 
 #endif  // HCF_H
-- 
cgit 


From 35128d29103d17563d5cc13db4ddce749f0b6656 Mon Sep 17 00:00:00 2001
From: Archana kumari <archanakumari959@gmail.com>
Date: Sat, 19 Oct 2013 19:45:11 +0530
Subject: staging: wlags49_h2: Fixes the sparse warning in sta_h2.c

This patch fixes sparse warning "Using plain integer as NULL pointer" in
sta_h2.c

Signed-off-by: Archana kumari <archanakumari959@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/wlags49_h2/sta_h2.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/wlags49_h2/sta_h2.c b/drivers/staging/wlags49_h2/sta_h2.c
index 19bed819df1e..25ac76f7d366 100644
--- a/drivers/staging/wlags49_h2/sta_h2.c
+++ b/drivers/staging/wlags49_h2/sta_h2.c
@@ -4472,8 +4472,8 @@ memimage fw_image = {
 	"FUPU7D37dhfwci\001C",			/* signature, <format number>, C/Bin type */
 	(CFG_PROG_STRCT *) fw_image_code,
 	0x000F368E,
-	00000000,					/* (dummy) pdaplug */
-	00000000,					/* (dummy) priplug */
+	NULL,					/* (dummy) pdaplug */
+	NULL,					/* (dummy) priplug */
 	(CFG_RANGE20_STRCT *) fw_image_infocompat,
 	(CFG_IDENTITY_STRCT *) fw_image_infoidentity,
 };
-- 
cgit 


From 936e15dd2128eb5aa71251766f1176552b45f43c Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Thu, 10 Oct 2013 11:01:08 +0300
Subject: gpiolib / ACPI: convert to gpiod interfaces

The new GPIO descriptor based interface is now preferred over the old
integer based one. This patch converts the ACPI GPIO helpers to use this
new interface internally. In addition to that provide compatibility
function acpi_get_gpio_by_index() that converts the returned GPIO
descriptor to an integer.

We also drop acpi_get_gpio() as it is not used anywhere outside
gpiolib-acpi and even there we use acpi_get_gpiod() instead.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpiolib-acpi.c | 51 ++++++++++++++++++++++-----------------------
 include/linux/acpi_gpio.h   | 29 ++++++++++++++++----------
 2 files changed, 43 insertions(+), 37 deletions(-)

diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 1745ce5983d6..03187d0a3045 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -11,7 +11,7 @@
  */
 
 #include <linux/errno.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/export.h>
 #include <linux/acpi_gpio.h>
 #include <linux/acpi.h>
@@ -33,14 +33,15 @@ static int acpi_gpiochip_find(struct gpio_chip *gc, void *data)
 }
 
 /**
- * acpi_get_gpio() - Translate ACPI GPIO pin to GPIO number usable with GPIO API
+ * acpi_get_gpiod() - Translate ACPI GPIO pin to GPIO descriptor usable with GPIO API
  * @path:	ACPI GPIO controller full path name, (e.g. "\\_SB.GPO1")
  * @pin:	ACPI GPIO pin number (0-based, controller-relative)
  *
- * Returns GPIO number to use with Linux generic GPIO API, or errno error value
+ * Returns GPIO descriptor to use with Linux generic GPIO API, or ERR_PTR
+ * error value
  */
 
-int acpi_get_gpio(char *path, int pin)
+static struct gpio_desc *acpi_get_gpiod(char *path, int pin)
 {
 	struct gpio_chip *chip;
 	acpi_handle handle;
@@ -48,18 +49,17 @@ int acpi_get_gpio(char *path, int pin)
 
 	status = acpi_get_handle(NULL, path, &handle);
 	if (ACPI_FAILURE(status))
-		return -ENODEV;
+		return ERR_PTR(-ENODEV);
 
 	chip = gpiochip_find(handle, acpi_gpiochip_find);
 	if (!chip)
-		return -ENODEV;
+		return ERR_PTR(-ENODEV);
 
-	if (!gpio_is_valid(chip->base + pin))
-		return -EINVAL;
+	if (pin < 0 || pin > chip->ngpio)
+		return ERR_PTR(-EINVAL);
 
-	return chip->base + pin;
+	return gpio_to_desc(chip->base + pin);
 }
-EXPORT_SYMBOL_GPL(acpi_get_gpio);
 
 static irqreturn_t acpi_gpio_irq_handler(int irq, void *data)
 {
@@ -235,7 +235,7 @@ EXPORT_SYMBOL(acpi_gpiochip_free_interrupts);
 struct acpi_gpio_lookup {
 	struct acpi_gpio_info info;
 	int index;
-	int gpio;
+	struct gpio_desc *desc;
 	int n;
 };
 
@@ -246,11 +246,11 @@ static int acpi_find_gpio(struct acpi_resource *ares, void *data)
 	if (ares->type != ACPI_RESOURCE_TYPE_GPIO)
 		return 1;
 
-	if (lookup->n++ == lookup->index && lookup->gpio < 0) {
+	if (lookup->n++ == lookup->index && !lookup->desc) {
 		const struct acpi_resource_gpio *agpio = &ares->data.gpio;
 
-		lookup->gpio = acpi_get_gpio(agpio->resource_source.string_ptr,
-					     agpio->pin_table[0]);
+		lookup->desc = acpi_get_gpiod(agpio->resource_source.string_ptr,
+					      agpio->pin_table[0]);
 		lookup->info.gpioint =
 			agpio->connection_type == ACPI_RESOURCE_GPIO_TYPE_INT;
 	}
@@ -259,24 +259,24 @@ static int acpi_find_gpio(struct acpi_resource *ares, void *data)
 }
 
 /**
- * acpi_get_gpio_by_index() - get a GPIO number from device resources
+ * acpi_get_gpiod_by_index() - get a GPIO descriptor from device resources
  * @dev: pointer to a device to get GPIO from
  * @index: index of GpioIo/GpioInt resource (starting from %0)
  * @info: info pointer to fill in (optional)
  *
  * Function goes through ACPI resources for @dev and based on @index looks
- * up a GpioIo/GpioInt resource, translates it to the Linux GPIO number,
+ * up a GpioIo/GpioInt resource, translates it to the Linux GPIO descriptor,
  * and returns it. @index matches GpioIo/GpioInt resources only so if there
  * are total %3 GPIO resources, the index goes from %0 to %2.
  *
- * If the GPIO cannot be translated or there is an error, negative errno is
+ * If the GPIO cannot be translated or there is an error an ERR_PTR is
  * returned.
  *
  * Note: if the GPIO resource has multiple entries in the pin list, this
  * function only returns the first.
  */
-int acpi_get_gpio_by_index(struct device *dev, int index,
-			   struct acpi_gpio_info *info)
+struct gpio_desc *acpi_get_gpiod_by_index(struct device *dev, int index,
+					  struct acpi_gpio_info *info)
 {
 	struct acpi_gpio_lookup lookup;
 	struct list_head resource_list;
@@ -285,27 +285,26 @@ int acpi_get_gpio_by_index(struct device *dev, int index,
 	int ret;
 
 	if (!dev)
-		return -EINVAL;
+		return ERR_PTR(-EINVAL);
 
 	handle = ACPI_HANDLE(dev);
 	if (!handle || acpi_bus_get_device(handle, &adev))
-		return -ENODEV;
+		return ERR_PTR(-ENODEV);
 
 	memset(&lookup, 0, sizeof(lookup));
 	lookup.index = index;
-	lookup.gpio = -ENODEV;
 
 	INIT_LIST_HEAD(&resource_list);
 	ret = acpi_dev_get_resources(adev, &resource_list, acpi_find_gpio,
 				     &lookup);
 	if (ret < 0)
-		return ret;
+		return ERR_PTR(ret);
 
 	acpi_dev_free_resource_list(&resource_list);
 
-	if (lookup.gpio >= 0 && info)
+	if (lookup.desc && info)
 		*info = lookup.info;
 
-	return lookup.gpio;
+	return lookup.desc ? lookup.desc : ERR_PTR(-ENODEV);
 }
-EXPORT_SYMBOL_GPL(acpi_get_gpio_by_index);
+EXPORT_SYMBOL_GPL(acpi_get_gpiod_by_index);
diff --git a/include/linux/acpi_gpio.h b/include/linux/acpi_gpio.h
index 4c120a1e0ca3..b6ce601e55a2 100644
--- a/include/linux/acpi_gpio.h
+++ b/include/linux/acpi_gpio.h
@@ -2,8 +2,10 @@
 #define _LINUX_ACPI_GPIO_H_
 
 #include <linux/device.h>
+#include <linux/err.h>
 #include <linux/errno.h>
 #include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 
 /**
  * struct acpi_gpio_info - ACPI GPIO specific information
@@ -15,23 +17,18 @@ struct acpi_gpio_info {
 
 #ifdef CONFIG_GPIO_ACPI
 
-int acpi_get_gpio(char *path, int pin);
-int acpi_get_gpio_by_index(struct device *dev, int index,
-			   struct acpi_gpio_info *info);
+struct gpio_desc *acpi_get_gpiod_by_index(struct device *dev, int index,
+					  struct acpi_gpio_info *info);
 void acpi_gpiochip_request_interrupts(struct gpio_chip *chip);
 void acpi_gpiochip_free_interrupts(struct gpio_chip *chip);
 
 #else /* CONFIG_GPIO_ACPI */
 
-static inline int acpi_get_gpio(char *path, int pin)
+static inline struct gpio_desc *
+acpi_get_gpiod_by_index(struct device *dev, int index,
+			struct acpi_gpio_info *info)
 {
-	return -ENODEV;
-}
-
-static inline int acpi_get_gpio_by_index(struct device *dev, int index,
-					 struct acpi_gpio_info *info)
-{
-	return -ENODEV;
+	return ERR_PTR(-ENOSYS);
 }
 
 static inline void acpi_gpiochip_request_interrupts(struct gpio_chip *chip) { }
@@ -39,4 +36,14 @@ static inline void acpi_gpiochip_free_interrupts(struct gpio_chip *chip) { }
 
 #endif /* CONFIG_GPIO_ACPI */
 
+static inline int acpi_get_gpio_by_index(struct device *dev, int index,
+					 struct acpi_gpio_info *info)
+{
+	struct gpio_desc *desc = acpi_get_gpiod_by_index(dev, index, info);
+
+	if (IS_ERR(desc))
+		return PTR_ERR(desc);
+	return desc_to_gpio(desc);
+}
+
 #endif /* _LINUX_ACPI_GPIO_H_ */
-- 
cgit 


From 81f59e9d138c3ba0bd0f97d4e14f856d987e3f1d Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Thu, 10 Oct 2013 11:01:09 +0300
Subject: gpiolib / ACPI: add ACPI support for gpiod_get_index()

gpiod_get_index() and gpiod_get() are now the new preferred way to request
GPIOs. Add support for finding the corresponding GPIO descriptor from ACPI
namespace.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpiolib.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 9263c7b359b7..bee93c8c2361 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -10,6 +10,7 @@
 #include <linux/seq_file.h>
 #include <linux/gpio.h>
 #include <linux/of_gpio.h>
+#include <linux/acpi_gpio.h>
 #include <linux/idr.h>
 #include <linux/slab.h>
 
@@ -2260,6 +2261,12 @@ static struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
 }
 #endif
 
+static struct gpio_desc *acpi_find_gpio(struct device *dev, const char *con_id,
+					unsigned int idx, unsigned long *flags)
+{
+	return acpi_get_gpiod_by_index(dev, idx, NULL);
+}
+
 static struct gpio_desc *gpiod_find(struct device *dev, const char *con_id,
 				    unsigned int idx, unsigned long *flags)
 {
@@ -2361,6 +2368,9 @@ struct gpio_desc *__must_check gpiod_get_index(struct device *dev,
 	if (IS_ENABLED(CONFIG_OF) && dev && dev->of_node) {
 		dev_dbg(dev, "using device tree for GPIO lookup\n");
 		desc = of_find_gpio(dev, con_id, idx, &flags);
+	} else if (IS_ENABLED(CONFIG_ACPI) && dev && ACPI_HANDLE(dev)) {
+		dev_dbg(dev, "using ACPI for GPIO lookup\n");
+		desc = acpi_find_gpio(dev, con_id, idx, &flags);
 	} else {
 		dev_dbg(dev, "using lookup tables for GPIO lookup");
 		desc = gpiod_find(dev, con_id, idx, &flags);
-- 
cgit 


From e01f440a689aeb2d0e81c696fe2069f8d01d5d49 Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Thu, 10 Oct 2013 11:01:10 +0300
Subject: gpiolib / ACPI: allow passing GPIOF_ACTIVE_LOW for GpioInt resources

The ACPI GpioInt resources contain polarity field that is used to specify
whether the interrupt is active high or low. Since gpiolib supports
GPIOF_ACTIVE_LOW we can pass this information in the flags field in
acpi_find_gpio(), analogous to the DeviceTree version.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpiolib-acpi.c |  2 ++
 drivers/gpio/gpiolib.c      | 12 +++++++++++-
 include/linux/acpi_gpio.h   |  2 ++
 3 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 03187d0a3045..ae0ffdce8bd5 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -253,6 +253,8 @@ static int acpi_find_gpio(struct acpi_resource *ares, void *data)
 					      agpio->pin_table[0]);
 		lookup->info.gpioint =
 			agpio->connection_type == ACPI_RESOURCE_GPIO_TYPE_INT;
+		lookup->info.active_low =
+			agpio->polarity == ACPI_ACTIVE_LOW;
 	}
 
 	return 1;
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index bee93c8c2361..9f3326b95e60 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -2264,7 +2264,17 @@ static struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
 static struct gpio_desc *acpi_find_gpio(struct device *dev, const char *con_id,
 					unsigned int idx, unsigned long *flags)
 {
-	return acpi_get_gpiod_by_index(dev, idx, NULL);
+	struct acpi_gpio_info info;
+	struct gpio_desc *desc;
+
+	desc = acpi_get_gpiod_by_index(dev, idx, &info);
+	if (IS_ERR(desc))
+		return desc;
+
+	if (info.gpioint && info.active_low)
+		*flags |= GPIOF_ACTIVE_LOW;
+
+	return desc;
 }
 
 static struct gpio_desc *gpiod_find(struct device *dev, const char *con_id,
diff --git a/include/linux/acpi_gpio.h b/include/linux/acpi_gpio.h
index b6ce601e55a2..d875bc3dba3c 100644
--- a/include/linux/acpi_gpio.h
+++ b/include/linux/acpi_gpio.h
@@ -10,9 +10,11 @@
 /**
  * struct acpi_gpio_info - ACPI GPIO specific information
  * @gpioint: if %true this GPIO is of type GpioInt otherwise type is GpioIo
+ * @active_low: in case of @gpioint, the pin is active low
  */
 struct acpi_gpio_info {
 	bool gpioint;
+	bool active_low;
 };
 
 #ifdef CONFIG_GPIO_ACPI
-- 
cgit 


From 45f394391f93596782c6a5ec14f0a5428f60f9b3 Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Thu, 10 Oct 2013 11:01:11 +0300
Subject: gpiolib / ACPI: document the GPIO descriptor based interface

In addition to the existing ACPI specific GPIO interface, document the new
descriptor based GPIO interface in Documentation/acpi/enumeration.txt, so
it is clear that this new interface is preferred over the ACPI specific
version.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 Documentation/acpi/enumeration.txt | 26 ++++++++++++++++++++++----
 1 file changed, 22 insertions(+), 4 deletions(-)

diff --git a/Documentation/acpi/enumeration.txt b/Documentation/acpi/enumeration.txt
index aca4e69121b7..b994bcb32b92 100644
--- a/Documentation/acpi/enumeration.txt
+++ b/Documentation/acpi/enumeration.txt
@@ -295,10 +295,6 @@ These GPIO numbers are controller relative and path "\\_SB.PCI0.GPI0"
 specifies the path to the controller. In order to use these GPIOs in Linux
 we need to translate them to the Linux GPIO numbers.
 
-The driver can do this by including <linux/acpi_gpio.h> and then calling
-acpi_get_gpio(path, gpio). This will return the Linux GPIO number or
-negative errno if there was no translation found.
-
 In a simple case of just getting the Linux GPIO number from device
 resources one can use acpi_get_gpio_by_index() helper function. It takes
 pointer to the device and index of the GpioIo/GpioInt descriptor in the
@@ -322,3 +318,25 @@ suitable to the gpiolib before passing them.
 
 In case of GpioInt resource an additional call to gpio_to_irq() must be
 done before calling request_irq().
+
+Note that the above API is ACPI specific and not recommended for drivers
+that need to support non-ACPI systems. The recommended way is to use
+the descriptor based GPIO interfaces. The above example looks like this
+when converted to the GPIO desc:
+
+	#include <linux/gpio/consumer.h>
+	...
+
+	struct gpio_desc *irq_desc, *power_desc;
+
+	irq_desc = gpiod_get_index(dev, NULL, 1);
+	if (IS_ERR(irq_desc))
+		/* handle error */
+
+	power_desc = gpiod_get_index(dev, NULL, 0);
+	if (IS_ERR(power_desc))
+		/* handle error */
+
+	/* Now we can use the GPIO descriptors */
+
+See also Documentation/gpio.txt.
-- 
cgit 


From 4ee0925da18f84146da698b7843ceabf9053f834 Mon Sep 17 00:00:00 2001
From: Archana kumari <archanakumari959@gmail.com>
Date: Fri, 18 Oct 2013 13:49:50 +0530
Subject: staging: dgnc:Removed unecessary error messages in dgnc_driver.c

Fixed removal of unecessary error messages in staging:dgnc:dgnc_driver.c

Signed-off-by: Archana kumari <archanakumari959@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgnc/dgnc_driver.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c
index 4271fa38a46c..f2821884b03d 100644
--- a/drivers/staging/dgnc/dgnc_driver.c
+++ b/drivers/staging/dgnc/dgnc_driver.c
@@ -489,7 +489,6 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
 	brd = dgnc_Board[dgnc_NumBoards] =
 		kzalloc(sizeof(*brd), GFP_KERNEL);
 	if (!brd) {
-		APR(("memory allocation for board structure failed\n"));
 		return -ENOMEM;
 	}
 
@@ -498,7 +497,6 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
 		kzalloc(sizeof(u8) * 8192, GFP_KERNEL);
 	if (!brd->msgbuf) {
 		kfree(brd);
-		APR(("memory allocation for board msgbuf failed\n"));
 		return -ENOMEM;
 	}
 
-- 
cgit 


From a27582310ce800ad8e73291260a0852e8b603865 Mon Sep 17 00:00:00 2001
From: Archana kumari <archanakumari959@gmail.com>
Date: Fri, 18 Oct 2013 13:52:51 +0530
Subject: staging: dgnc: braces {} are not necessary for single statement in
 dgnc_driver.c

Fixes "braces {} are not necessary for single statement blocks" warning
in dgnc_driver.c

Signed-off-by: Archana kumari <archanakumari959@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgnc/dgnc_driver.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/dgnc/dgnc_driver.c b/drivers/staging/dgnc/dgnc_driver.c
index f2821884b03d..c204266cb69f 100644
--- a/drivers/staging/dgnc/dgnc_driver.c
+++ b/drivers/staging/dgnc/dgnc_driver.c
@@ -488,9 +488,8 @@ static int dgnc_found_board(struct pci_dev *pdev, int id)
 	/* get the board structure and prep it */
 	brd = dgnc_Board[dgnc_NumBoards] =
 		kzalloc(sizeof(*brd), GFP_KERNEL);
-	if (!brd) {
+	if (!brd) 
 		return -ENOMEM;
-	}
 
 	/* make a temporary message buffer for the boot messages */
 	brd->msgbuf = brd->msgbuf_head =
-- 
cgit 


From e15b0c4eeb88ed5f37ed2e887b6610bd1aa44348 Mon Sep 17 00:00:00 2001
From: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Date: Sat, 19 Oct 2013 13:26:44 +0530
Subject: Staging: dgnc: removing the comparison 'board<0'

Fix dgnc_mgmt_ioctl() warn: unsigned 'board' is never less than zero.

Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgnc/dgnc_mgmt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/dgnc/dgnc_mgmt.c b/drivers/staging/dgnc/dgnc_mgmt.c
index 354458c5068e..1c5ab3d007b0 100644
--- a/drivers/staging/dgnc/dgnc_mgmt.c
+++ b/drivers/staging/dgnc/dgnc_mgmt.c
@@ -220,7 +220,7 @@ long dgnc_mgmt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 		channel = ni.channel;
 
 		/* Verify boundaries on board */
-		if ((board < 0) || (board > dgnc_NumBoards) || (dgnc_NumBoards == 0))
+		if ((board > dgnc_NumBoards) || (dgnc_NumBoards == 0))
 			return -ENODEV;
 
 		/* Verify boundaries on channel */
-- 
cgit 


From f32eca7d6f962a9d8e998dc28a96665a9a7deb78 Mon Sep 17 00:00:00 2001
From: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Date: Sat, 19 Oct 2013 15:22:28 +0530
Subject: Staging: dgnc: avoiding buffer overflow

drivers/staging/dgnc/dgnc_neo.c:1969 neo_vpd() error: buffer overflow 'brd->vpd' 128 <= 128
drivers/staging/dgnc/dgnc_neo.c:1970 neo_vpd() warn: buffer overflow 'brd->vpd' 128 <= 130
drivers/staging/dgnc/dgnc_neo.c:1970 neo_vpd() warn: buffer overflow 'brd->vpd' 128 <= 130

Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dgnc/dgnc_neo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/dgnc/dgnc_neo.c b/drivers/staging/dgnc/dgnc_neo.c
index 0e2a5e144cfe..dc5a138d8d4a 100644
--- a/drivers/staging/dgnc/dgnc_neo.c
+++ b/drivers/staging/dgnc/dgnc_neo.c
@@ -1965,7 +1965,7 @@ static void neo_vpd(struct dgnc_board *brd)
 	}
 	else {
 		/* Search for the serial number */
-		for (i = 0; i < NEO_VPD_IMAGESIZE * 2; i++) {
+		for (i = 0; i < NEO_VPD_IMAGEBYTES - 3; i++) {
 			if (brd->vpd[i] == 'S' && brd->vpd[i + 1] == 'N') {
 				strncpy(brd->serial_num, &(brd->vpd[i + 3]), 9);
 			}
-- 
cgit 


From 0217a889ed62846e61fc0e1ce1300204a04817cb Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sat, 19 Oct 2013 13:13:36 +0530
Subject: Staging: slicoss: Removal of if check since debugfs_remove(NULL) is
 safe

This patch fixes the following checkpatch.pl warning in slicoss.c:
WARNING: debugfs_remove(NULL) is safe this check is probably not
required

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/slicoss/slicoss.c | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c
index b6eb5df7a426..363f7b37dd54 100644
--- a/drivers/staging/slicoss/slicoss.c
+++ b/drivers/staging/slicoss/slicoss.c
@@ -2231,14 +2231,8 @@ static void slic_debug_card_destroy(struct sliccard *card)
 		if (adapter)
 			slic_debug_adapter_destroy(adapter);
 	}
-	if (card->debugfs_cardinfo) {
-		debugfs_remove(card->debugfs_cardinfo);
-		card->debugfs_cardinfo = NULL;
-	}
-	if (card->debugfs_dir) {
-		debugfs_remove(card->debugfs_dir);
-		card->debugfs_dir = NULL;
-	}
+	debugfs_remove(card->debugfs_cardinfo);
+	debugfs_remove(card->debugfs_dir);
 }
 
 static void slic_debug_init(void)
@@ -2256,10 +2250,7 @@ static void slic_debug_init(void)
 
 static void slic_debug_cleanup(void)
 {
-	if (slic_debugfs) {
-		debugfs_remove(slic_debugfs);
-		slic_debugfs = NULL;
-	}
+	debugfs_remove(slic_debugfs);
 }
 
 /*
-- 
cgit 


From 1f6876cf9f2ad44557d07695cb5b13da2ce41343 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sat, 19 Oct 2013 13:15:53 +0530
Subject: Staging: slicoss: Replace printk() with pr_debug() or dev_dbg() as
 required

This patch fixes the following checkpatch.pl warning in slicoss.c:
WARNING: Prefer netdev_dbg(netdev, ... then dev_dbg(dev, ... then
pr_debug(...  to printk(KERN_DEBUG ...

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/slicoss/slicoss.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c
index 363f7b37dd54..561011a3918c 100644
--- a/drivers/staging/slicoss/slicoss.c
+++ b/drivers/staging/slicoss/slicoss.c
@@ -62,6 +62,7 @@
 #define SLIC_OFFLOAD_IP_CHECKSUM		1
 #define STATS_TIMER_INTERVAL			2
 #define PING_TIMER_INTERVAL			    1
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/kernel.h>
 #include <linux/string.h>
@@ -3636,8 +3637,8 @@ static int slic_entry_probe(struct pci_dev *pcidev,
 		return err;
 
 	if (slic_debug > 0 && did_version++ == 0) {
-		printk(KERN_DEBUG "%s\n", slic_banner);
-		printk(KERN_DEBUG "%s\n", slic_proc_version);
+		dev_dbg(&pcidev->dev, "%s\n", slic_banner);
+		dev_dbg(&pcidev->dev, "%s\n", slic_proc_version);
 	}
 
 	if (!pci_set_dma_mask(pcidev, DMA_BIT_MASK(64))) {
@@ -3767,8 +3768,7 @@ static int __init slic_module_init(void)
 	slic_init_driver();
 
 	if (debug >= 0 && slic_debug != debug)
-		printk(KERN_DEBUG KBUILD_MODNAME ": debug level is %d.\n",
-		       debug);
+		pr_debug("debug level is %d.\n", debug);
 	if (debug >= 0)
 		slic_debug = debug;
 
-- 
cgit 


From f66626e436e0a87fcf5d7c2d7001aeb4f2962d3c Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sat, 19 Oct 2013 13:17:10 +0530
Subject: Staging: slicoss: Refactor code by introducing new function
 slic_interrupt_card_up()

This patch fixes the following checkpatch.pl warning in slicoss.c:
WARNING: Too many leading tabs - consider code refactoring

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/slicoss/slicoss.c | 120 ++++++++++++++++++++------------------
 1 file changed, 62 insertions(+), 58 deletions(-)

diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c
index 561011a3918c..860d5b884b61 100644
--- a/drivers/staging/slicoss/slicoss.c
+++ b/drivers/staging/slicoss/slicoss.c
@@ -2619,6 +2619,67 @@ static void slic_xmit_complete(struct adapter *adapter)
 	adapter->max_isr_xmits = max(adapter->max_isr_xmits, frames);
 }
 
+static void slic_interrupt_card_up(u32 isr, struct adapter *adapter,
+			struct net_device *dev)
+{
+	if (isr & ~ISR_IO) {
+		if (isr & ISR_ERR) {
+			adapter->error_interrupts++;
+			if (isr & ISR_RMISS) {
+				int count;
+				int pre_count;
+				int errors;
+
+				struct slic_rcvqueue *rcvq =
+					&adapter->rcvqueue;
+
+				adapter->error_rmiss_interrupts++;
+
+				if (!rcvq->errors)
+					rcv_count = rcvq->count;
+				pre_count = rcvq->count;
+				errors = rcvq->errors;
+
+				while (rcvq->count < SLIC_RCVQ_FILLTHRESH) {
+					count = slic_rcvqueue_fill(adapter);
+					if (!count)
+						break;
+				}
+			} else if (isr & ISR_XDROP) {
+				dev_err(&dev->dev,
+						"isr & ISR_ERR [%x] "
+						"ISR_XDROP \n", isr);
+			} else {
+				dev_err(&dev->dev,
+						"isr & ISR_ERR [%x]\n",
+						isr);
+			}
+		}
+
+		if (isr & ISR_LEVENT) {
+			adapter->linkevent_interrupts++;
+			slic_link_event_handler(adapter);
+		}
+
+		if ((isr & ISR_UPC) || (isr & ISR_UPCERR) ||
+		    (isr & ISR_UPCBSY)) {
+			adapter->upr_interrupts++;
+			slic_upr_request_complete(adapter, isr);
+		}
+	}
+
+	if (isr & ISR_RCV) {
+		adapter->rcv_interrupts++;
+		slic_rcv_handler(adapter);
+	}
+
+	if (isr & ISR_CMD) {
+		adapter->xmit_interrupts++;
+		slic_xmit_complete(adapter);
+	}
+}
+
+
 static irqreturn_t slic_interrupt(int irq, void *dev_id)
 {
 	struct net_device *dev = (struct net_device *)dev_id;
@@ -2633,64 +2694,7 @@ static irqreturn_t slic_interrupt(int irq, void *dev_id)
 		adapter->num_isrs++;
 		switch (adapter->card->state) {
 		case CARD_UP:
-			if (isr & ~ISR_IO) {
-				if (isr & ISR_ERR) {
-					adapter->error_interrupts++;
-					if (isr & ISR_RMISS) {
-						int count;
-						int pre_count;
-						int errors;
-
-						struct slic_rcvqueue *rcvq =
-						    &adapter->rcvqueue;
-
-						adapter->
-						    error_rmiss_interrupts++;
-						if (!rcvq->errors)
-							rcv_count = rcvq->count;
-						pre_count = rcvq->count;
-						errors = rcvq->errors;
-
-						while (rcvq->count <
-						       SLIC_RCVQ_FILLTHRESH) {
-							count =
-							    slic_rcvqueue_fill
-							    (adapter);
-							if (!count)
-								break;
-						}
-					} else if (isr & ISR_XDROP) {
-						dev_err(&dev->dev,
-							"isr & ISR_ERR [%x] "
-							"ISR_XDROP \n", isr);
-					} else {
-						dev_err(&dev->dev,
-							"isr & ISR_ERR [%x]\n",
-							isr);
-					}
-				}
-
-				if (isr & ISR_LEVENT) {
-					adapter->linkevent_interrupts++;
-					slic_link_event_handler(adapter);
-				}
-
-				if ((isr & ISR_UPC) ||
-				    (isr & ISR_UPCERR) || (isr & ISR_UPCBSY)) {
-					adapter->upr_interrupts++;
-					slic_upr_request_complete(adapter, isr);
-				}
-			}
-
-			if (isr & ISR_RCV) {
-				adapter->rcv_interrupts++;
-				slic_rcv_handler(adapter);
-			}
-
-			if (isr & ISR_CMD) {
-				adapter->xmit_interrupts++;
-				slic_xmit_complete(adapter);
-			}
+			slic_interrupt_card_up(isr, adapter, dev);
 			break;
 
 		case CARD_DOWN:
-- 
cgit 


From 79b0ae8de2515293310146f7d8d681c0ff5057a8 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sat, 19 Oct 2013 13:17:59 +0530
Subject: Staging: slicoss: Fix quoted string split across lines

This patch fixes the following checkpatch.pl warning in slicoss.c-
WARNING: quoted string split across lines

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/slicoss/slicoss.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c
index 860d5b884b61..8b5490b4efab 100644
--- a/drivers/staging/slicoss/slicoss.c
+++ b/drivers/staging/slicoss/slicoss.c
@@ -3649,8 +3649,7 @@ static int slic_entry_probe(struct pci_dev *pcidev,
 		pci_using_dac = 1;
 		err = pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64));
 		if (err) {
-			dev_err(&pcidev->dev, "unable to obtain 64-bit DMA for "
-					"consistent allocations\n");
+			dev_err(&pcidev->dev, "unable to obtain 64-bit DMA for consistent allocations\n");
 			goto err_out_disable_pci;
 		}
 	} else {
-- 
cgit 


From c8e46f447dfd7b1d5fd9a3b5662f67ca7333febc Mon Sep 17 00:00:00 2001
From: Archana kumari <archanakumari959@gmail.com>
Date: Sat, 19 Oct 2013 15:47:04 +0530
Subject: staging: vt6655: Fix C99 commenting style in michael.h

This patch fixes C99 commenting style in staging:vt6655:michael.h

Signed-off-by: Archana kumari <archanakumari959@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6655/michael.h | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/vt6655/michael.h b/drivers/staging/vt6655/michael.h
index 0828d18ad528..387d20623aa3 100644
--- a/drivers/staging/vt6655/michael.h
+++ b/drivers/staging/vt6655/michael.h
@@ -39,18 +39,18 @@ void MIC_vInit(unsigned long dwK0, unsigned long dwK1);
 
 void MIC_vUnInit(void);
 
-// Append bytes to the message to be MICed
+/* Append bytes to the message to be MICed */
 void MIC_vAppend(unsigned char *src, unsigned int nBytes);
 
-// Get the MIC result. Destination should accept 8 bytes of result.
-// This also resets the message to empty.
+/* Get the MIC result. Destination should accept 8 bytes of result. */
+/* This also resets the message to empty. */
 void MIC_vGetMIC(unsigned long *pdwL, unsigned long *pdwR);
 
 /*---------------------  Export Macros ------------------------------*/
 
-// Rotation functions on 32 bit values
+/* Rotation functions on 32 bit values */
 #define ROL32(A, n)							\
 	(((A) << (n)) | (((A)>>(32-(n)))  & ((1UL << (n)) - 1)))
 #define ROR32(A, n) ROL32((A), 32-(n))
 
-#endif //__MICHAEL_H__
+#endif /*__MICHAEL_H__ */
-- 
cgit 


From 1b7e763140d0767485ac87b6bb7c07ea29a27e78 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sat, 19 Oct 2013 15:53:21 +0530
Subject: Staging: sep: Fix Smatch Warning in sep_crypto.c

This patch fixes the following smatch warning-

~/git/kernels/linux/drivers/staging/sep/sep_crypto.c:1137
sep_crypto_block_data() info: why not propagate 'int_error' from sep_oddball_pages() instead of (-12)?
~/git/kernels/linux/drivers/staging/sep/sep_crypto.c:1152
sep_crypto_block_data() info: why not propagate 'int_error' from sep_oddball_pages() instead of (-12)?

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/sep/sep_crypto.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/sep/sep_crypto.c b/drivers/staging/sep/sep_crypto.c
index 490a31e0fd43..b9262a78dd6e 100644
--- a/drivers/staging/sep/sep_crypto.c
+++ b/drivers/staging/sep/sep_crypto.c
@@ -1134,7 +1134,7 @@ static int sep_crypto_block_data(struct ablkcipher_request *req)
 
 	if (int_error < 0) {
 		dev_warn(&ta_ctx->sep_used->pdev->dev, "oddball page error\n");
-		return -ENOMEM;
+		return int_error;
 	} else if (int_error == 1) {
 		ta_ctx->src_sg = new_sg;
 		ta_ctx->src_sg_hold = new_sg;
@@ -1149,7 +1149,7 @@ static int sep_crypto_block_data(struct ablkcipher_request *req)
 	if (int_error < 0) {
 		dev_warn(&ta_ctx->sep_used->pdev->dev, "walk phys error %x\n",
 			int_error);
-		return -ENOMEM;
+		return int_error;
 	} else if (int_error == 1) {
 		ta_ctx->dst_sg = new_sg;
 		ta_ctx->dst_sg_hold = new_sg;
-- 
cgit 


From a8eecad5c906707475a2141133fe43710e5f5e85 Mon Sep 17 00:00:00 2001
From: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Date: Sat, 19 Oct 2013 20:58:26 +0530
Subject: Staging: speakup: replacing simple_strtoul with kstrtoul

Fix checkpatch warning: WARNING: simple_strtoul is obsolete, use
kstrtoul instead

Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/speakup/kobjects.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/speakup/kobjects.c b/drivers/staging/speakup/kobjects.c
index f31afa2cffb7..e2f597ee6261 100644
--- a/drivers/staging/speakup/kobjects.c
+++ b/drivers/staging/speakup/kobjects.c
@@ -616,7 +616,7 @@ ssize_t spk_var_store(struct kobject *kobj, struct kobj_attribute *attr,
 	int len;
 	char *cp;
 	struct var_t *var_data;
-	int value;
+	long value;
 	unsigned long flags;
 
 	param = spk_var_header_by_name(attr->attr.name);
@@ -638,8 +638,10 @@ ssize_t spk_var_store(struct kobject *kobj, struct kobj_attribute *attr,
 			len = E_INC;
 		else
 			len = E_SET;
-		value = simple_strtol(cp, NULL, 10);
-		ret = spk_set_num_var(value, param, len);
+		if (kstrtol(cp, 10, &value) == 0)
+			ret = spk_set_num_var(value, param, len);
+		else
+			pr_warn("overflow or parsing error has occured");
 		if (ret == -ERANGE) {
 			var_data = param->data;
 			pr_warn("value for %s out of range, expect %d to %d\n",
-- 
cgit 


From 88ef9b1bcec362e15d677ca183bce219706b77ca Mon Sep 17 00:00:00 2001
From: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Date: Sat, 19 Oct 2013 21:53:37 +0530
Subject: Staging: line6: replacing -EINVAL with retval

drivers/staging/line6/midi.c:147 send_midi_async() info: why not
propagate 'retval' from usb_submit_urb() instead of (-22)?

Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/line6/midi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/line6/midi.c b/drivers/staging/line6/midi.c
index 52da4d9d2164..3f6d78c585fb 100644
--- a/drivers/staging/line6/midi.c
+++ b/drivers/staging/line6/midi.c
@@ -144,7 +144,7 @@ static int send_midi_async(struct usb_line6 *line6, unsigned char *data,
 	if (retval < 0) {
 		dev_err(line6->ifcdev, "usb_submit_urb failed\n");
 		usb_free_urb(urb);
-		return -EINVAL;
+		return retval;
 	}
 
 	++line6->line6midi->num_active_send_urbs;
-- 
cgit 


From 056e0af2f5dd7c19176bd9d099cd9e9649be33f8 Mon Sep 17 00:00:00 2001
From: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Date: Sat, 19 Oct 2013 22:01:22 +0530
Subject: Staging: line6: replacing -EINVAL with retval in driver.c

drivers/staging/line6/driver.c:208 line6_send_raw_message_async_part()
info: why not propagate 'retval' from usb_submit_urb() instead of (-22)?

Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/line6/driver.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/line6/driver.c b/drivers/staging/line6/driver.c
index 471c10c116ec..ee1799056b48 100644
--- a/drivers/staging/line6/driver.c
+++ b/drivers/staging/line6/driver.c
@@ -205,7 +205,7 @@ static int line6_send_raw_message_async_part(struct message *msg,
 			__func__, retval);
 		usb_free_urb(urb);
 		kfree(msg);
-		return -EINVAL;
+		return retval;
 	}
 
 	return 0;
-- 
cgit 


From 131ccc2e74ea42328d66c67bd7f9e993e48e2fdb Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sat, 19 Oct 2013 23:05:01 +0530
Subject: Staging: sb105x: Remove redundant null check

This patch fixes the following Sparse information in sb_pci_mp.c-

~/git/kernels/linux/drivers/staging/sb105x/sb_pci_mp.c:1813
mp_unregister_driver() info: redundant null check on drv->state calling kfree()

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/sb105x/sb_pci_mp.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/staging/sb105x/sb_pci_mp.c b/drivers/staging/sb105x/sb_pci_mp.c
index 23db32f07fd5..adb6bea728b2 100644
--- a/drivers/staging/sb105x/sb_pci_mp.c
+++ b/drivers/staging/sb105x/sb_pci_mp.c
@@ -1808,10 +1808,7 @@ void mp_unregister_driver(struct uart_driver *drv)
     drv->tty_driver = NULL;
 
 
-    if (drv->state)
-    {
-        kfree(drv->state);
-    }
+    kfree(drv->state);
 
 }
 
-- 
cgit 


From 8b65c5bb090e36e151d206ea3ace1484406292a5 Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Sat, 19 Oct 2013 21:09:45 +0300
Subject: staging: rtl8187se: use gfp_t instead of int

Fix the following type of sparse warnings:

drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c:249:17: warning: incorrect type in argument 2 (different base types)
drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c:249:17:    expected restricted gfp_t [usertype] flags
drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c:249:17:    got int [signed] gfp_mask

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
index b3466530cf94..bc338a52eafe 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
@@ -240,7 +240,7 @@ void ieee80211_txb_free(struct ieee80211_txb *txb) {
 }
 
 struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size,
-					  int gfp_mask)
+					  gfp_t gfp_mask)
 {
 	struct ieee80211_txb *txb;
 	int i;
-- 
cgit 


From 8e87b1b3d2c75a41884cf255d1c4224013b9cd4a Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Sat, 19 Oct 2013 21:09:46 +0300
Subject: staging: rtl8187se: add missing __iomem annotation

Fix the following type of sparse warnings:

drivers/staging/rtl8187se/r8180_core.c:163:48: warning: incorrect type in argument 1 (different address spaces)
drivers/staging/rtl8187se/r8180_core.c:163:48:    expected void const volatile [noderef] <asn:2>*addr
drivers/staging/rtl8187se/r8180_core.c:163:48:    got unsigned char [usertype] *

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/r8180_core.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/rtl8187se/r8180_core.c b/drivers/staging/rtl8187se/r8180_core.c
index 48ce9a66907c..fb24fcec8d9d 100644
--- a/drivers/staging/rtl8187se/r8180_core.c
+++ b/drivers/staging/rtl8187se/r8180_core.c
@@ -160,34 +160,34 @@ static struct pci_driver rtl8180_pci_driver = {
 
 u8 read_nic_byte(struct net_device *dev, int x)
 {
-	return 0xff&readb((u8 *)dev->mem_start + x);
+	return 0xff&readb((u8 __iomem *)dev->mem_start + x);
 }
 
 u32 read_nic_dword(struct net_device *dev, int x)
 {
-	return readl((u8 *)dev->mem_start + x);
+	return readl((u8 __iomem *)dev->mem_start + x);
 }
 
 u16 read_nic_word(struct net_device *dev, int x)
 {
-	return readw((u8 *)dev->mem_start + x);
+	return readw((u8 __iomem *)dev->mem_start + x);
 }
 
 void write_nic_byte(struct net_device *dev, int x, u8 y)
 {
-	writeb(y, (u8 *)dev->mem_start + x);
+	writeb(y, (u8 __iomem *)dev->mem_start + x);
 	udelay(20);
 }
 
 void write_nic_dword(struct net_device *dev, int x, u32 y)
 {
-	writel(y, (u8 *)dev->mem_start + x);
+	writel(y, (u8 __iomem *)dev->mem_start + x);
 	udelay(20);
 }
 
 void write_nic_word(struct net_device *dev, int x, u16 y)
 {
-	writew(y, (u8 *)dev->mem_start + x);
+	writew(y, (u8 __iomem *)dev->mem_start + x);
 	udelay(20);
 }
 
@@ -3251,7 +3251,7 @@ static int rtl8180_pci_probe(struct pci_dev *pdev,
 	return 0;
 fail1:
 	if (dev->mem_start != (unsigned long)NULL) {
-		iounmap((void *)dev->mem_start);
+		iounmap((void __iomem *)dev->mem_start);
 		release_mem_region(pci_resource_start(pdev, 1),
 				   pci_resource_len(pdev, 1));
 	}
@@ -3297,7 +3297,7 @@ static void rtl8180_pci_remove(struct pci_dev *pdev)
 		free_tx_desc_rings(dev);
 
 		if (dev->mem_start != (unsigned long)NULL) {
-			iounmap((void *)dev->mem_start);
+			iounmap((void __iomem *)dev->mem_start);
 			release_mem_region(pci_resource_start(pdev, 1),
 					   pci_resource_len(pdev, 1));
 		}
-- 
cgit 


From 17ab33eed0e0cf7fb719750dc74ea15db6519c9d Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Sat, 19 Oct 2013 21:09:47 +0300
Subject: staging: rtl8187se: fix static sparse warnings

This patch fixes sparse warnings regarding functions that should be
static in driver rtl8187se.

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/ieee80211/ieee80211_rx.c |  2 +-
 .../rtl8187se/ieee80211/ieee80211_softmac.c        |  6 +-
 drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c |  4 +-
 drivers/staging/rtl8187se/r8180_core.c             | 85 +++++++++++-----------
 drivers/staging/rtl8187se/r8180_dm.c               | 16 ++--
 drivers/staging/rtl8187se/r8180_rtl8225z2.c        |  6 +-
 drivers/staging/rtl8187se/r8180_wx.c               |  5 +-
 7 files changed, 64 insertions(+), 60 deletions(-)

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_rx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_rx.c
index 10b22100dd3a..304579096562 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_rx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_rx.c
@@ -858,7 +858,7 @@ static inline void ieee80211_extract_country_ie(
 
 }
 
-int
+static int
 ieee80211_TranslateToDbm(
 	unsigned char SignalStrengthIndex	// 0-100 index.
 	)
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
index b65db542e1ab..c0e47653cd23 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
@@ -887,7 +887,8 @@ static struct sk_buff* ieee80211_probe_resp(struct ieee80211_device *ieee, u8 *d
 	return skb;
 }
 
-struct sk_buff* ieee80211_assoc_resp(struct ieee80211_device *ieee, u8 *dest)
+static struct sk_buff* ieee80211_assoc_resp(struct ieee80211_device *ieee,
+					    u8 *dest)
 {
 	struct sk_buff *skb;
 	u8* tag;
@@ -940,7 +941,8 @@ struct sk_buff* ieee80211_assoc_resp(struct ieee80211_device *ieee, u8 *dest)
 	return skb;
 }
 
-struct sk_buff* ieee80211_auth_resp(struct ieee80211_device *ieee,int status, u8 *dest)
+static struct sk_buff* ieee80211_auth_resp(struct ieee80211_device *ieee,
+					   int status, u8 *dest)
 {
 	struct sk_buff *skb;
 	struct ieee80211_authentication *auth;
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
index bc338a52eafe..d9601839adac 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
@@ -239,8 +239,8 @@ void ieee80211_txb_free(struct ieee80211_txb *txb) {
 	kfree(txb);
 }
 
-struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size,
-					  gfp_t gfp_mask)
+static struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size,
+						 gfp_t gfp_mask)
 {
 	struct ieee80211_txb *txb;
 	int i;
diff --git a/drivers/staging/rtl8187se/r8180_core.c b/drivers/staging/rtl8187se/r8180_core.c
index fb24fcec8d9d..55dfd5e450cd 100644
--- a/drivers/staging/rtl8187se/r8180_core.c
+++ b/drivers/staging/rtl8187se/r8180_core.c
@@ -275,18 +275,18 @@ static int proc_get_stats_tx(struct seq_file *m, void *v)
 	return 0;
 }
 
-void rtl8180_proc_module_init(void)
+static void rtl8180_proc_module_init(void)
 {
 	DMESG("Initializing proc filesystem");
 	rtl8180_proc = proc_mkdir(RTL8180_MODULE_NAME, init_net.proc_net);
 }
 
-void rtl8180_proc_module_remove(void)
+static void rtl8180_proc_module_remove(void)
 {
 	remove_proc_entry(RTL8180_MODULE_NAME, init_net.proc_net);
 }
 
-void rtl8180_proc_remove_one(struct net_device *dev)
+static void rtl8180_proc_remove_one(struct net_device *dev)
 {
 	remove_proc_subtree(dev->name, rtl8180_proc);
 }
@@ -325,7 +325,7 @@ static const struct rtl8180_proc_file rtl8180_proc_files[] = {
 	{ "" }
 };
 
-void rtl8180_proc_init_one(struct net_device *dev)
+static void rtl8180_proc_init_one(struct net_device *dev)
 {
 	const struct rtl8180_proc_file *f;
 	struct proc_dir_entry *dir;
@@ -351,8 +351,8 @@ void rtl8180_proc_init_one(struct net_device *dev)
   data type+functions in kernel
 */
 
-short buffer_add(struct buffer **buffer, u32 *buf, dma_addr_t dma,
-		struct buffer **bufferhead)
+static short buffer_add(struct buffer **buffer, u32 *buf, dma_addr_t dma,
+			struct buffer **bufferhead)
 {
 	struct buffer *tmp;
 
@@ -463,7 +463,7 @@ int get_curr_tx_free_desc(struct net_device *dev, int priority)
 	return ret;
 }
 
-short check_nic_enought_desc(struct net_device *dev, int priority)
+static short check_nic_enought_desc(struct net_device *dev, int priority)
 {
 	struct r8180_priv *priv = ieee80211_priv(dev);
 	struct ieee80211_device *ieee = netdev_priv(dev);
@@ -589,7 +589,7 @@ void fix_rx_fifo(struct net_device *dev)
 	set_nic_rxring(dev);
 }
 
-void rtl8180_irq_disable(struct net_device *dev)
+static void rtl8180_irq_disable(struct net_device *dev)
 {
 	struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
 
@@ -705,8 +705,8 @@ void rtl8180_rtx_disable(struct net_device *dev)
 		dev_kfree_skb_any(priv->rx_skb);
 }
 
-short alloc_tx_desc_ring(struct net_device *dev, int bufsize, int count,
-			 int addr)
+static short alloc_tx_desc_ring(struct net_device *dev, int bufsize, int count,
+				int addr)
 {
 	int i;
 	u32 *desc;
@@ -830,7 +830,7 @@ short alloc_tx_desc_ring(struct net_device *dev, int bufsize, int count,
 	return 0;
 }
 
-void free_tx_desc_rings(struct net_device *dev)
+static void free_tx_desc_rings(struct net_device *dev)
 {
 	struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
 	struct pci_dev *pdev = priv->pdev;
@@ -866,7 +866,7 @@ void free_tx_desc_rings(struct net_device *dev)
 	buffer_free(dev, &(priv->txbeaconbufs), priv->txbuffsize, 1);
 }
 
-void free_rx_desc_ring(struct net_device *dev)
+static void free_rx_desc_ring(struct net_device *dev)
 {
 	struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
 	struct pci_dev *pdev = priv->pdev;
@@ -878,7 +878,7 @@ void free_rx_desc_ring(struct net_device *dev)
 	buffer_free(dev, &(priv->rxbuffer), priv->rxbuffersize, 0);
 }
 
-short alloc_rx_desc_ring(struct net_device *dev, u16 bufsize, int count)
+static short alloc_rx_desc_ring(struct net_device *dev, u16 bufsize, int count)
 {
 	int i;
 	u32 *desc;
@@ -1092,7 +1092,7 @@ u16 N_DBPSOfRate(u16 DataRate)
 /*
  * For Netgear case, they want good-looking signal strength.
  */
-long NetgearSignalStrengthTranslate(long LastSS, long CurrSS)
+static long NetgearSignalStrengthTranslate(long LastSS, long CurrSS)
 {
 	long RetSS;
 
@@ -1128,7 +1128,7 @@ long NetgearSignalStrengthTranslate(long LastSS, long CurrSS)
 /*
  * Translate 0-100 signal strength index into dBm.
  */
-long TranslateToDbm8185(u8 SignalStrengthIndex)
+static long TranslateToDbm8185(u8 SignalStrengthIndex)
 {
 	long SignalPower;
 
@@ -1145,8 +1145,8 @@ long TranslateToDbm8185(u8 SignalStrengthIndex)
  * No dramatic adjustion is apply because dynamic mechanism need some degree
  * of correctness. Ported from 8187B.
  */
-void PerformUndecoratedSignalSmoothing8185(struct r8180_priv *priv,
-					   bool bCckRate)
+static void PerformUndecoratedSignalSmoothing8185(struct r8180_priv *priv,
+						  bool bCckRate)
 {
 	/* Determin the current packet is CCK rate. */
 	priv->bCurCCKPkt = bCckRate;
@@ -1170,7 +1170,7 @@ void PerformUndecoratedSignalSmoothing8185(struct r8180_priv *priv,
 /*
  * This is rough RX isr handling routine
  */
-void rtl8180_rx(struct net_device *dev)
+static void rtl8180_rx(struct net_device *dev)
 {
 	struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
 	struct sk_buff *tmp_skb;
@@ -1496,7 +1496,7 @@ drop: /* this is used when we have not enough mem */
 }
 
 
-void rtl8180_dma_kick(struct net_device *dev, int priority)
+static void rtl8180_dma_kick(struct net_device *dev, int priority)
 {
 	struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
 
@@ -1508,7 +1508,7 @@ void rtl8180_dma_kick(struct net_device *dev, int priority)
 	force_pci_posting(dev);
 }
 
-void rtl8180_data_hard_stop(struct net_device *dev)
+static void rtl8180_data_hard_stop(struct net_device *dev)
 {
 	struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
 
@@ -1518,7 +1518,7 @@ void rtl8180_data_hard_stop(struct net_device *dev)
 	rtl8180_set_mode(dev, EPROM_CMD_NORMAL);
 }
 
-void rtl8180_data_hard_resume(struct net_device *dev)
+static void rtl8180_data_hard_resume(struct net_device *dev)
 {
 	struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
 
@@ -1532,8 +1532,9 @@ void rtl8180_data_hard_resume(struct net_device *dev)
  * This function TX data frames when the ieee80211 stack requires this.
  * It checks also if we need to stop the ieee tx queue, eventually do it
  */
-void rtl8180_hard_data_xmit(struct sk_buff *skb, struct net_device *dev, int
-rate) {
+static void rtl8180_hard_data_xmit(struct sk_buff *skb, struct net_device *dev,
+				   int rate)
+{
 	struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
 	int mode;
 	struct ieee80211_hdr_3addr *h = (struct ieee80211_hdr_3addr *) skb->data;
@@ -1584,7 +1585,7 @@ rate) {
  * might use a different lock than tx_lock (for example mgmt_tx_lock)
  */
 /* these function may loop if invoked with 0 descriptors or 0 len buffer */
-int rtl8180_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static int rtl8180_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
 	unsigned long flags;
@@ -1660,7 +1661,7 @@ u16 rtl8180_len2duration(u32 len, short rate, short *ext)
 	return duration;
 }
 
-void rtl8180_prepare_beacon(struct net_device *dev)
+static void rtl8180_prepare_beacon(struct net_device *dev)
 {
 	struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
 	struct sk_buff *skb;
@@ -1953,7 +1954,7 @@ short rtl8180_tx(struct net_device *dev, u8 *txbuf, int len, int priority,
 
 void rtl8180_irq_rx_tasklet(struct r8180_priv *priv);
 
-void rtl8180_link_change(struct net_device *dev)
+static void rtl8180_link_change(struct net_device *dev)
 {
 	struct r8180_priv *priv = ieee80211_priv(dev);
 	u16 beacon_interval;
@@ -1976,7 +1977,7 @@ void rtl8180_link_change(struct net_device *dev)
 	rtl8180_set_chan(dev, priv->chan);
 }
 
-void rtl8180_rq_tx_ack(struct net_device *dev)
+static void rtl8180_rq_tx_ack(struct net_device *dev)
 {
 
 	struct r8180_priv *priv = ieee80211_priv(dev);
@@ -1985,7 +1986,7 @@ void rtl8180_rq_tx_ack(struct net_device *dev)
 	priv->ack_tx_to_ieee = 1;
 }
 
-short rtl8180_is_tx_queue_empty(struct net_device *dev)
+static short rtl8180_is_tx_queue_empty(struct net_device *dev)
 {
 
 	struct r8180_priv *priv = ieee80211_priv(dev);
@@ -2023,7 +2024,7 @@ short rtl8180_is_tx_queue_empty(struct net_device *dev)
 	return 1;
 }
 
-void rtl8180_hw_wakeup(struct net_device *dev)
+static void rtl8180_hw_wakeup(struct net_device *dev)
 {
 	unsigned long flags;
 	struct r8180_priv *priv = ieee80211_priv(dev);
@@ -2035,7 +2036,7 @@ void rtl8180_hw_wakeup(struct net_device *dev)
 	spin_unlock_irqrestore(&priv->ps_lock, flags);
 }
 
-void rtl8180_hw_sleep_down(struct net_device *dev)
+static void rtl8180_hw_sleep_down(struct net_device *dev)
 {
 	unsigned long flags;
 	struct r8180_priv *priv = ieee80211_priv(dev);
@@ -2046,7 +2047,7 @@ void rtl8180_hw_sleep_down(struct net_device *dev)
 	spin_unlock_irqrestore(&priv->ps_lock, flags);
 }
 
-void rtl8180_hw_sleep(struct net_device *dev, u32 th, u32 tl)
+static void rtl8180_hw_sleep(struct net_device *dev, u32 th, u32 tl)
 {
 	struct r8180_priv *priv = ieee80211_priv(dev);
 	u32 rb = jiffies;
@@ -2093,7 +2094,7 @@ void rtl8180_hw_sleep(struct net_device *dev, u32 th, u32 tl)
 	spin_unlock_irqrestore(&priv->ps_lock, flags);
 }
 
-void rtl8180_wmm_param_update(struct work_struct *work)
+static void rtl8180_wmm_param_update(struct work_struct *work)
 {
 	struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, wmm_param_update_wq);
 	struct net_device *dev = ieee->dev;
@@ -2195,7 +2196,7 @@ void rtl8180_hw_sleep_wq(struct work_struct *work);
 void rtl8180_sw_antenna_wq(struct work_struct *work);
 void rtl8180_watch_dog(struct net_device *dev);
 
-void watch_dog_adaptive(unsigned long data)
+static void watch_dog_adaptive(unsigned long data)
 {
 	struct r8180_priv *priv = ieee80211_priv((struct net_device *)data);
 
@@ -2757,7 +2758,7 @@ void rtl8185_tx_antenna(struct net_device *dev, u8 ant)
 	mdelay(1);
 }
 
-void rtl8185_write_phy(struct net_device *dev, u8 adr, u32 data)
+static void rtl8185_write_phy(struct net_device *dev, u8 adr, u32 data)
 {
 	u32 phyw;
 
@@ -2969,7 +2970,7 @@ void rtl8180_watch_dog(struct net_device *dev)
 	priv->ieee80211->NumRxBcnInPeriod = 0;
 }
 
-int _rtl8180_up(struct net_device *dev)
+static int _rtl8180_up(struct net_device *dev)
 {
 	struct r8180_priv *priv = ieee80211_priv(dev);
 
@@ -2991,7 +2992,7 @@ int _rtl8180_up(struct net_device *dev)
 	return 0;
 }
 
-int rtl8180_open(struct net_device *dev)
+static int rtl8180_open(struct net_device *dev)
 {
 	struct r8180_priv *priv = ieee80211_priv(dev);
 	int ret;
@@ -3012,7 +3013,7 @@ int rtl8180_up(struct net_device *dev)
 	return _rtl8180_up(dev);
 }
 
-int rtl8180_close(struct net_device *dev)
+static int rtl8180_close(struct net_device *dev)
 {
 	struct r8180_priv *priv = ieee80211_priv(dev);
 	int ret;
@@ -3065,7 +3066,7 @@ void rtl8180_restart_wq(struct work_struct *work)
 	up(&priv->wx_sem);
 }
 
-void rtl8180_restart(struct net_device *dev)
+static void rtl8180_restart(struct net_device *dev)
 {
 	struct r8180_priv *priv = ieee80211_priv(dev);
 
@@ -3106,7 +3107,7 @@ static void r8180_set_multicast(struct net_device *dev)
 	priv->promisc = promisc;
 }
 
-int r8180_set_mac_adr(struct net_device *dev, void *mac)
+static int r8180_set_mac_adr(struct net_device *dev, void *mac)
 {
 	struct r8180_priv *priv = ieee80211_priv(dev);
 	struct sockaddr *addr = mac;
@@ -3129,7 +3130,7 @@ int r8180_set_mac_adr(struct net_device *dev, void *mac)
 }
 
 /* based on ipw2200 driver */
-int rtl8180_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+static int rtl8180_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 {
 	struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
 	struct iwreq *wrq = (struct iwreq *) rq;
@@ -3368,7 +3369,7 @@ static void __exit rtl8180_pci_module_exit(void)
 	DMESG("Exiting");
 }
 
-void rtl8180_try_wake_queue(struct net_device *dev, int pri)
+static void rtl8180_try_wake_queue(struct net_device *dev, int pri)
 {
 	unsigned long flags;
 	short enough_desc;
@@ -3382,7 +3383,7 @@ void rtl8180_try_wake_queue(struct net_device *dev, int pri)
 		ieee80211_rtl_wake_queue(priv->ieee80211);
 }
 
-void rtl8180_tx_isr(struct net_device *dev, int pri, short error)
+static void rtl8180_tx_isr(struct net_device *dev, int pri, short error)
 {
 	struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
 	u32 *tail; /* tail virtual addr */
diff --git a/drivers/staging/rtl8187se/r8180_dm.c b/drivers/staging/rtl8187se/r8180_dm.c
index d5a5f2089710..980bafd12277 100644
--- a/drivers/staging/rtl8187se/r8180_dm.c
+++ b/drivers/staging/rtl8187se/r8180_dm.c
@@ -30,7 +30,7 @@ bool CheckHighPower(struct net_device *dev)
  *		and they are related to OFDM and MAC registers.
  *		So, we don't want to update it so frequently in per-Rx packet base.
  */
-void DoTxHighPower(struct net_device *dev)
+static void DoTxHighPower(struct net_device *dev)
 {
 	struct r8180_priv *priv = ieee80211_priv(dev);
 	u16			HiPwrUpperTh = 0;
@@ -125,7 +125,7 @@ bool CheckDig(struct net_device *dev)
 /*
  *	Implementation of DIG for Zebra and Zebra2.
  */
-void DIG_Zebra(struct net_device *dev)
+static void DIG_Zebra(struct net_device *dev)
 {
 	struct r8180_priv *priv = ieee80211_priv(dev);
 	u16			CCKFalseAlarm, OFDMFalseAlarm;
@@ -202,7 +202,7 @@ void DIG_Zebra(struct net_device *dev)
 /*
  *	Dispatch DIG implementation according to RF.
  */
-void DynamicInitGain(struct net_device *dev)
+static void DynamicInitGain(struct net_device *dev)
 {
 	DIG_Zebra(dev);
 }
@@ -223,7 +223,7 @@ void rtl8180_hw_dig_wq(struct work_struct *work)
 
 }
 
-int IncludedInSupportedRates(struct r8180_priv *priv, u8 TxRate)
+static int IncludedInSupportedRates(struct r8180_priv *priv, u8 TxRate)
 {
 	u8 rate_len;
 	u8 rate_ex_len;
@@ -255,7 +255,7 @@ found_rate:
  *	Get the Tx rate one degree up form the input rate in the supported rates.
  *	Return the upgrade rate if it is successed, otherwise return the input rate.
  */
-u8 GetUpgradeTxRate(struct net_device *dev, u8 rate)
+static u8 GetUpgradeTxRate(struct net_device *dev, u8 rate)
 {
 	struct r8180_priv *priv = ieee80211_priv(dev);
 	u8                      UpRate;
@@ -315,7 +315,7 @@ u8 GetUpgradeTxRate(struct net_device *dev, u8 rate)
  *	Return the degrade rate if it is successed, otherwise return the input rate.
  */
 
-u8 GetDegradeTxRate(struct net_device *dev, u8 rate)
+static u8 GetDegradeTxRate(struct net_device *dev, u8 rate)
 {
 	struct r8180_priv *priv = ieee80211_priv(dev);
 	u8                      DownRate;
@@ -375,7 +375,7 @@ u8 GetDegradeTxRate(struct net_device *dev, u8 rate)
  *      CCK rate.
  */
 
-bool MgntIsCckRate(u16 rate)
+static bool MgntIsCckRate(u16 rate)
 {
 	bool bReturn = false;
 
@@ -435,7 +435,7 @@ void TxPwrTracking87SE(struct net_device *dev)
 	}
 	priv->ThermalMeter = CurrentThermal;
 }
-void StaRateAdaptive87SE(struct net_device *dev)
+static void StaRateAdaptive87SE(struct net_device *dev)
 {
 	struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
 	unsigned long	CurrTxokCnt;
diff --git a/drivers/staging/rtl8187se/r8180_rtl8225z2.c b/drivers/staging/rtl8187se/r8180_rtl8225z2.c
index 9ae96b7852f3..7c9a8bfe6d88 100644
--- a/drivers/staging/rtl8187se/r8180_rtl8225z2.c
+++ b/drivers/staging/rtl8187se/r8180_rtl8225z2.c
@@ -136,7 +136,7 @@ static const u16 rtl8225z2_rxgain[] = {
 
 };
 
-void rtl8225z2_set_gain(struct net_device *dev, short gain)
+static void rtl8225z2_set_gain(struct net_device *dev, short gain)
 {
 	const u8 *rtl8225_gain;
 	struct r8180_priv *priv = ieee80211_priv(dev);
@@ -279,8 +279,8 @@ void rtl8225z2_rf_close(struct net_device *dev)
  * Map dBm into Tx power index according to current HW model, for example,
  * RF and PA, and current wireless mode.
  */
-s8 DbmToTxPwrIdx(struct r8180_priv *priv, WIRELESS_MODE WirelessMode,
-		 s32 PowerInDbm)
+static s8 DbmToTxPwrIdx(struct r8180_priv *priv, WIRELESS_MODE WirelessMode,
+			s32 PowerInDbm)
 {
 	bool bUseDefault = true;
 	s8 TxPwrIdx = 0;
diff --git a/drivers/staging/rtl8187se/r8180_wx.c b/drivers/staging/rtl8187se/r8180_wx.c
index dab787542c45..098e368835e2 100644
--- a/drivers/staging/rtl8187se/r8180_wx.c
+++ b/drivers/staging/rtl8187se/r8180_wx.c
@@ -50,8 +50,9 @@ static int r8180_wx_get_freq(struct net_device *dev,
 }
 
 
-int r8180_wx_set_key(struct net_device *dev, struct iw_request_info *info,
-		     union iwreq_data *wrqu, char *key)
+static int r8180_wx_set_key(struct net_device *dev,
+			    struct iw_request_info *info,
+			    union iwreq_data *wrqu, char *key)
 {
 	struct r8180_priv *priv = ieee80211_priv(dev);
 	struct iw_point *erq = &(wrqu->encoding);
-- 
cgit 


From 207287595bb2e9070d45780382f115fcd42e893d Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Sat, 19 Oct 2013 21:09:48 +0300
Subject: staging: rtl8187se: checkpatch cleanups

Fix the following checkpatch.pl errors:

drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c:890: "foo* bar" should be "foo *bar"
drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c:944: "foo* bar" should be "foo *bar"

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
index c0e47653cd23..04058263398e 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
@@ -887,7 +887,7 @@ static struct sk_buff* ieee80211_probe_resp(struct ieee80211_device *ieee, u8 *d
 	return skb;
 }
 
-static struct sk_buff* ieee80211_assoc_resp(struct ieee80211_device *ieee,
+static struct sk_buff *ieee80211_assoc_resp(struct ieee80211_device *ieee,
 					    u8 *dest)
 {
 	struct sk_buff *skb;
@@ -941,7 +941,7 @@ static struct sk_buff* ieee80211_assoc_resp(struct ieee80211_device *ieee,
 	return skb;
 }
 
-static struct sk_buff* ieee80211_auth_resp(struct ieee80211_device *ieee,
+static struct sk_buff *ieee80211_auth_resp(struct ieee80211_device *ieee,
 					   int status, u8 *dest)
 {
 	struct sk_buff *skb;
-- 
cgit 


From 0a2a78c4a95240e658272bd7cd7422a529e4eb4a Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Fri, 18 Oct 2013 17:43:33 +0200
Subject: bonding: push Netlink bits into separate file

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/Makefile       |  2 +-
 drivers/net/bonding/bond_main.c    | 32 ++++------------------
 drivers/net/bonding/bond_netlink.c | 54 ++++++++++++++++++++++++++++++++++++++
 drivers/net/bonding/bonding.h      |  7 +++++
 4 files changed, 67 insertions(+), 28 deletions(-)
 create mode 100644 drivers/net/bonding/bond_netlink.c

diff --git a/drivers/net/bonding/Makefile b/drivers/net/bonding/Makefile
index 4c21bf6b8b2f..09e8b2c83afe 100644
--- a/drivers/net/bonding/Makefile
+++ b/drivers/net/bonding/Makefile
@@ -4,7 +4,7 @@
 
 obj-$(CONFIG_BONDING) += bonding.o
 
-bonding-objs := bond_main.o bond_3ad.o bond_alb.o bond_sysfs.o bond_debugfs.o
+bonding-objs := bond_main.o bond_3ad.o bond_alb.o bond_sysfs.o bond_debugfs.o bond_netlink.o
 
 proc-$(CONFIG_PROC_FS) += bond_procfs.o
 bonding-objs += $(proc-y)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index dfb4f6dd5de0..a113e4212486 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -3951,7 +3951,7 @@ static void bond_destructor(struct net_device *bond_dev)
 	free_netdev(bond_dev);
 }
 
-static void bond_setup(struct net_device *bond_dev)
+void bond_setup(struct net_device *bond_dev)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
 
@@ -4451,32 +4451,11 @@ static int bond_init(struct net_device *bond_dev)
 	return 0;
 }
 
-static int bond_validate(struct nlattr *tb[], struct nlattr *data[])
-{
-	if (tb[IFLA_ADDRESS]) {
-		if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
-			return -EINVAL;
-		if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
-			return -EADDRNOTAVAIL;
-	}
-	return 0;
-}
-
-static unsigned int bond_get_num_tx_queues(void)
+unsigned int bond_get_num_tx_queues(void)
 {
 	return tx_queues;
 }
 
-static struct rtnl_link_ops bond_link_ops __read_mostly = {
-	.kind			= "bond",
-	.priv_size		= sizeof(struct bonding),
-	.setup			= bond_setup,
-	.validate		= bond_validate,
-	.get_num_tx_queues	= bond_get_num_tx_queues,
-	.get_num_rx_queues	= bond_get_num_tx_queues, /* Use the same number
-							     as for TX queues */
-};
-
 /* Create a new bond based on the specified name and bonding parameters.
  * If name is NULL, obtain a suitable "bond%d" name for us.
  * Caller must NOT hold rtnl_lock; we need to release it here before we
@@ -4563,7 +4542,7 @@ static int __init bonding_init(void)
 	if (res)
 		goto out;
 
-	res = rtnl_link_register(&bond_link_ops);
+	res = bond_netlink_init();
 	if (res)
 		goto err_link;
 
@@ -4579,7 +4558,7 @@ static int __init bonding_init(void)
 out:
 	return res;
 err:
-	rtnl_link_unregister(&bond_link_ops);
+	bond_netlink_fini();
 err_link:
 	unregister_pernet_subsys(&bond_net_ops);
 	goto out;
@@ -4592,7 +4571,7 @@ static void __exit bonding_exit(void)
 
 	bond_destroy_debugfs();
 
-	rtnl_link_unregister(&bond_link_ops);
+	bond_netlink_fini();
 	unregister_pernet_subsys(&bond_net_ops);
 
 #ifdef CONFIG_NET_POLL_CONTROLLER
@@ -4609,4 +4588,3 @@ MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
 MODULE_DESCRIPTION(DRV_DESCRIPTION ", v" DRV_VERSION);
 MODULE_AUTHOR("Thomas Davis, tadavis@lbl.gov and many others");
-MODULE_ALIAS_RTNL_LINK("bond");
diff --git a/drivers/net/bonding/bond_netlink.c b/drivers/net/bonding/bond_netlink.c
new file mode 100644
index 000000000000..3e5c5f80c320
--- /dev/null
+++ b/drivers/net/bonding/bond_netlink.c
@@ -0,0 +1,54 @@
+/*
+ * drivers/net/bond/bond_netlink.c - Netlink interface for bonding
+ * Copyright (c) 2013 Jiri Pirko <jiri@resnulli.us>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/if_link.h>
+#include <linux/if_ether.h>
+#include <net/netlink.h>
+#include <net/rtnetlink.h>
+#include "bonding.h"
+
+static int bond_validate(struct nlattr *tb[], struct nlattr *data[])
+{
+	if (tb[IFLA_ADDRESS]) {
+		if (nla_len(tb[IFLA_ADDRESS]) != ETH_ALEN)
+			return -EINVAL;
+		if (!is_valid_ether_addr(nla_data(tb[IFLA_ADDRESS])))
+			return -EADDRNOTAVAIL;
+	}
+	return 0;
+}
+
+struct rtnl_link_ops bond_link_ops __read_mostly = {
+	.kind			= "bond",
+	.priv_size		= sizeof(struct bonding),
+	.setup			= bond_setup,
+	.validate		= bond_validate,
+	.get_num_tx_queues	= bond_get_num_tx_queues,
+	.get_num_rx_queues	= bond_get_num_tx_queues, /* Use the same number
+							     as for TX queues */
+};
+
+int __init bond_netlink_init(void)
+{
+	return rtnl_link_register(&bond_link_ops);
+}
+
+void __exit bond_netlink_fini(void)
+{
+	rtnl_link_unregister(&bond_link_ops);
+}
+
+MODULE_ALIAS_RTNL_LINK("bond");
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index bb5c731e2560..a2a353bf9ea6 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -418,6 +418,10 @@ void bond_debug_register(struct bonding *bond);
 void bond_debug_unregister(struct bonding *bond);
 void bond_debug_reregister(struct bonding *bond);
 const char *bond_mode_name(int mode);
+void bond_setup(struct net_device *bond_dev);
+unsigned int bond_get_num_tx_queues(void);
+int bond_netlink_init(void);
+void bond_netlink_fini(void);
 
 struct bond_net {
 	struct net *		net;	/* Associated network namespace */
@@ -505,4 +509,7 @@ extern const struct bond_parm_tbl fail_over_mac_tbl[];
 extern const struct bond_parm_tbl pri_reselect_tbl[];
 extern struct bond_parm_tbl ad_select_tbl[];
 
+/* exported from bond_netlink.c */
+extern struct rtnl_link_ops bond_link_ops;
+
 #endif /* _LINUX_BONDING_H */
-- 
cgit 


From 72be35fee6eda2fad7122f7f0c959effa3b2b791 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Fri, 18 Oct 2013 17:43:34 +0200
Subject: bonding: move mode setting into separate function

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/Makefile       |  2 +-
 drivers/net/bonding/bond_options.c | 55 ++++++++++++++++++++++++++++++++++++++
 drivers/net/bonding/bond_sysfs.c   | 45 ++++++++-----------------------
 drivers/net/bonding/bonding.h      |  9 +++++--
 4 files changed, 74 insertions(+), 37 deletions(-)
 create mode 100644 drivers/net/bonding/bond_options.c

diff --git a/drivers/net/bonding/Makefile b/drivers/net/bonding/Makefile
index 09e8b2c83afe..5a5d720da929 100644
--- a/drivers/net/bonding/Makefile
+++ b/drivers/net/bonding/Makefile
@@ -4,7 +4,7 @@
 
 obj-$(CONFIG_BONDING) += bonding.o
 
-bonding-objs := bond_main.o bond_3ad.o bond_alb.o bond_sysfs.o bond_debugfs.o bond_netlink.o
+bonding-objs := bond_main.o bond_3ad.o bond_alb.o bond_sysfs.o bond_debugfs.o bond_netlink.o bond_options.o
 
 proc-$(CONFIG_PROC_FS) += bond_procfs.o
 bonding-objs += $(proc-y)
diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c
new file mode 100644
index 000000000000..294b7660b054
--- /dev/null
+++ b/drivers/net/bonding/bond_options.c
@@ -0,0 +1,55 @@
+/*
+ * drivers/net/bond/bond_options.c - bonding options
+ * Copyright (c) 2013 Jiri Pirko <jiri@resnulli.us>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/errno.h>
+#include <linux/if.h>
+#include "bonding.h"
+
+static bool bond_mode_is_valid(int mode)
+{
+	int i;
+
+	for (i = 0; bond_mode_tbl[i].modename; i++);
+
+	return mode >= 0 && mode < i;
+}
+
+int bond_option_mode_set(struct bonding *bond, int mode)
+{
+	if (!bond_mode_is_valid(mode)) {
+		pr_err("invalid mode value %d.\n", mode);
+		return -EINVAL;
+	}
+
+	if (bond->dev->flags & IFF_UP) {
+		pr_err("%s: unable to update mode because interface is up.\n",
+		       bond->dev->name);
+		return -EPERM;
+	}
+
+	if (bond_has_slaves(bond)) {
+		pr_err("%s: unable to update mode because bond has slaves.\n",
+			bond->dev->name);
+		return -EPERM;
+	}
+
+	if (BOND_MODE_IS_LB(mode) && bond->params.arp_interval) {
+		pr_err("%s: %s mode is incompatible with arp monitoring.\n",
+		       bond->dev->name, bond_mode_tbl[mode].modename);
+		return -EINVAL;
+	}
+
+	/* don't cache arp_validate between modes */
+	bond->params.arp_validate = BOND_ARP_VALIDATE_NONE;
+	bond->params.mode = mode;
+	return 0;
+}
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 03bed0ca935e..c234cec10e05 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -283,49 +283,26 @@ static ssize_t bonding_store_mode(struct device *d,
 				  struct device_attribute *attr,
 				  const char *buf, size_t count)
 {
-	int new_value, ret = count;
+	int new_value, ret;
 	struct bonding *bond = to_bond(d);
 
-	if (!rtnl_trylock())
-		return restart_syscall();
-
-	if (bond->dev->flags & IFF_UP) {
-		pr_err("unable to update mode of %s because interface is up.\n",
-		       bond->dev->name);
-		ret = -EPERM;
-		goto out;
-	}
-
-	if (bond_has_slaves(bond)) {
-		pr_err("unable to update mode of %s because it has slaves.\n",
-			bond->dev->name);
-		ret = -EPERM;
-		goto out;
-	}
-
 	new_value = bond_parse_parm(buf, bond_mode_tbl);
 	if (new_value < 0)  {
 		pr_err("%s: Ignoring invalid mode value %.*s.\n",
 		       bond->dev->name, (int)strlen(buf) - 1, buf);
-		ret = -EINVAL;
-		goto out;
+		return -EINVAL;
 	}
-	if ((new_value == BOND_MODE_ALB ||
-	     new_value == BOND_MODE_TLB) &&
-	    bond->params.arp_interval) {
-		pr_err("%s: %s mode is incompatible with arp monitoring.\n",
-		       bond->dev->name, bond_mode_tbl[new_value].modename);
-		ret = -EINVAL;
-		goto out;
+	if (!rtnl_trylock())
+		return restart_syscall();
+
+	ret = bond_option_mode_set(bond, new_value);
+	if (!ret) {
+		pr_info("%s: setting mode to %s (%d).\n",
+			bond->dev->name, bond_mode_tbl[new_value].modename,
+			new_value);
+		ret = count;
 	}
 
-	/* don't cache arp_validate between modes */
-	bond->params.arp_validate = BOND_ARP_VALIDATE_NONE;
-	bond->params.mode = new_value;
-	pr_info("%s: setting mode to %s (%d).\n",
-		bond->dev->name, bond_mode_tbl[new_value].modename,
-		new_value);
-out:
 	rtnl_unlock();
 	return ret;
 }
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index a2a353bf9ea6..7446849a20c4 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -58,6 +58,11 @@
 #define TX_QUEUE_OVERRIDE(mode)				\
 			(((mode) == BOND_MODE_ACTIVEBACKUP) ||	\
 			 ((mode) == BOND_MODE_ROUNDROBIN))
+
+#define BOND_MODE_IS_LB(mode)			\
+		(((mode) == BOND_MODE_TLB) ||	\
+		 ((mode) == BOND_MODE_ALB))
+
 /*
  * Less bad way to call ioctl from within the kernel; this needs to be
  * done some other way to get the call out of interrupt context.
@@ -259,8 +264,7 @@ static inline struct bonding *bond_get_bond_by_slave(struct slave *slave)
 
 static inline bool bond_is_lb(const struct bonding *bond)
 {
-	return (bond->params.mode == BOND_MODE_TLB ||
-		bond->params.mode == BOND_MODE_ALB);
+	return BOND_MODE_IS_LB(bond->params.mode);
 }
 
 static inline void bond_set_active_slave(struct slave *slave)
@@ -422,6 +426,7 @@ void bond_setup(struct net_device *bond_dev);
 unsigned int bond_get_num_tx_queues(void);
 int bond_netlink_init(void);
 void bond_netlink_fini(void);
+int bond_option_mode_set(struct bonding *bond, int mode);
 
 struct bond_net {
 	struct net *		net;	/* Associated network namespace */
-- 
cgit 


From d9e32b21cb394c0816f206539b8c7e9c023db332 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Fri, 18 Oct 2013 17:43:35 +0200
Subject: bonding: move active_slave setting into separate function

Do a bit of refactoring on the way.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_options.c | 69 +++++++++++++++++++++++++++++++++++
 drivers/net/bonding/bond_sysfs.c   | 74 +++++++-------------------------------
 drivers/net/bonding/bonding.h      |  1 +
 3 files changed, 83 insertions(+), 61 deletions(-)

diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c
index 294b7660b054..09af5d10d43a 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -12,6 +12,9 @@
 
 #include <linux/errno.h>
 #include <linux/if.h>
+#include <linux/netdevice.h>
+#include <linux/rwlock.h>
+#include <linux/rcupdate.h>
 #include "bonding.h"
 
 static bool bond_mode_is_valid(int mode)
@@ -53,3 +56,69 @@ int bond_option_mode_set(struct bonding *bond, int mode)
 	bond->params.mode = mode;
 	return 0;
 }
+
+int bond_option_active_slave_set(struct bonding *bond,
+				 struct net_device *slave_dev)
+{
+	int ret = 0;
+
+	if (slave_dev) {
+		if (!netif_is_bond_slave(slave_dev)) {
+			pr_err("Device %s is not bonding slave.\n",
+			       slave_dev->name);
+			return -EINVAL;
+		}
+
+		if (bond->dev != netdev_master_upper_dev_get(slave_dev)) {
+			pr_err("%s: Device %s is not our slave.\n",
+			       bond->dev->name, slave_dev->name);
+			return -EINVAL;
+		}
+	}
+
+	if (!USES_PRIMARY(bond->params.mode)) {
+		pr_err("%s: Unable to change active slave; %s is in mode %d\n",
+		       bond->dev->name, bond->dev->name, bond->params.mode);
+		return -EINVAL;
+	}
+
+	block_netpoll_tx();
+	read_lock(&bond->lock);
+	write_lock_bh(&bond->curr_slave_lock);
+
+	/* check to see if we are clearing active */
+	if (!slave_dev) {
+		pr_info("%s: Clearing current active slave.\n",
+		bond->dev->name);
+		rcu_assign_pointer(bond->curr_active_slave, NULL);
+		bond_select_active_slave(bond);
+	} else {
+		struct slave *old_active = bond->curr_active_slave;
+		struct slave *new_active = bond_slave_get_rtnl(slave_dev);
+
+		BUG_ON(!new_active);
+
+		if (new_active == old_active) {
+			/* do nothing */
+			pr_info("%s: %s is already the current active slave.\n",
+				bond->dev->name, new_active->dev->name);
+		} else {
+			if (old_active && (new_active->link == BOND_LINK_UP) &&
+			    IS_UP(new_active->dev)) {
+				pr_info("%s: Setting %s as active slave.\n",
+					bond->dev->name, new_active->dev->name);
+				bond_change_active_slave(bond, new_active);
+			} else {
+				pr_err("%s: Could not set %s as active slave; either %s is down or the link is down.\n",
+				       bond->dev->name, new_active->dev->name,
+				       new_active->dev->name);
+				ret = -EINVAL;
+			}
+		}
+	}
+
+	write_unlock_bh(&bond->curr_slave_lock);
+	read_unlock(&bond->lock);
+	unblock_netpoll_tx();
+	return ret;
+}
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index c234cec10e05..abd260047103 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -1235,81 +1235,33 @@ static ssize_t bonding_store_active_slave(struct device *d,
 					  struct device_attribute *attr,
 					  const char *buf, size_t count)
 {
-	struct slave *slave, *old_active, *new_active;
+	int ret;
 	struct bonding *bond = to_bond(d);
-	struct list_head *iter;
 	char ifname[IFNAMSIZ];
+	struct net_device *dev;
 
 	if (!rtnl_trylock())
 		return restart_syscall();
 
-	old_active = new_active = NULL;
-	block_netpoll_tx();
-	read_lock(&bond->lock);
-	write_lock_bh(&bond->curr_slave_lock);
-
-	if (!USES_PRIMARY(bond->params.mode)) {
-		pr_info("%s: Unable to change active slave; %s is in mode %d\n",
-			bond->dev->name, bond->dev->name, bond->params.mode);
-		goto out;
-	}
-
 	sscanf(buf, "%15s", ifname); /* IFNAMSIZ */
-
-	/* check to see if we are clearing active */
 	if (!strlen(ifname) || buf[0] == '\n') {
-		pr_info("%s: Clearing current active slave.\n",
-			bond->dev->name);
-		rcu_assign_pointer(bond->curr_active_slave, NULL);
-		bond_select_active_slave(bond);
-		goto out;
-	}
-
-	bond_for_each_slave(bond, slave, iter) {
-		if (strncmp(slave->dev->name, ifname, IFNAMSIZ) == 0) {
-			old_active = bond->curr_active_slave;
-			new_active = slave;
-			if (new_active == old_active) {
-				/* do nothing */
-				pr_info("%s: %s is already the current"
-					" active slave.\n",
-					bond->dev->name,
-					slave->dev->name);
-				goto out;
-			} else {
-				if ((new_active) &&
-				    (old_active) &&
-				    (new_active->link == BOND_LINK_UP) &&
-				    IS_UP(new_active->dev)) {
-					pr_info("%s: Setting %s as active"
-						" slave.\n",
-						bond->dev->name,
-						slave->dev->name);
-					bond_change_active_slave(bond,
-								 new_active);
-				} else {
-					pr_info("%s: Could not set %s as"
-						" active slave; either %s is"
-						" down or the link is down.\n",
-						bond->dev->name,
-						slave->dev->name,
-						slave->dev->name);
-				}
-				goto out;
-			}
+		dev = NULL;
+	} else {
+		dev = __dev_get_by_name(dev_net(bond->dev), ifname);
+		if (!dev) {
+			ret = -ENODEV;
+			goto out;
 		}
 	}
 
-	pr_info("%s: Unable to set %.*s as active slave.\n",
-		bond->dev->name, (int)strlen(buf) - 1, buf);
- out:
-	write_unlock_bh(&bond->curr_slave_lock);
-	read_unlock(&bond->lock);
-	unblock_netpoll_tx();
+	ret = bond_option_active_slave_set(bond, dev);
+	if (!ret)
+		ret = count;
 
+ out:
 	rtnl_unlock();
 
-	return count;
+	return ret;
 
 }
 static DEVICE_ATTR(active_slave, S_IRUGO | S_IWUSR,
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 7446849a20c4..686759dce4c6 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -427,6 +427,7 @@ unsigned int bond_get_num_tx_queues(void);
 int bond_netlink_init(void);
 void bond_netlink_fini(void);
 int bond_option_mode_set(struct bonding *bond, int mode);
+int bond_option_active_slave_set(struct bonding *bond, struct net_device *slave_dev);
 
 struct bond_net {
 	struct net *		net;	/* Associated network namespace */
-- 
cgit 


From 080a06e1a9a5d2c55884d5fba8755d0af838cd5c Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Fri, 18 Oct 2013 17:43:36 +0200
Subject: bonding: remove bond_ioctl_change_active()

no longer needed since bond_option_active_slave_set() can be used
instead.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_main.c | 59 ++---------------------------------------
 1 file changed, 2 insertions(+), 57 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index a113e4212486..d90734fca918 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1910,61 +1910,6 @@ static int  bond_release_and_destroy(struct net_device *bond_dev,
 	return ret;
 }
 
-/*
- * This function changes the active slave to slave <slave_dev>.
- * It returns -EINVAL in the following cases.
- *  - <slave_dev> is not found in the list.
- *  - There is not active slave now.
- *  - <slave_dev> is already active.
- *  - The link state of <slave_dev> is not BOND_LINK_UP.
- *  - <slave_dev> is not running.
- * In these cases, this function does nothing.
- * In the other cases, current_slave pointer is changed and 0 is returned.
- */
-static int bond_ioctl_change_active(struct net_device *bond_dev, struct net_device *slave_dev)
-{
-	struct bonding *bond = netdev_priv(bond_dev);
-	struct slave *old_active = NULL;
-	struct slave *new_active = NULL;
-	int res = 0;
-
-	if (!USES_PRIMARY(bond->params.mode))
-		return -EINVAL;
-
-	/* Verify that bond_dev is indeed the master of slave_dev */
-	if (!(slave_dev->flags & IFF_SLAVE) ||
-	    !netdev_has_upper_dev(slave_dev, bond_dev))
-		return -EINVAL;
-
-	read_lock(&bond->lock);
-
-	old_active = bond->curr_active_slave;
-	new_active = bond_get_slave_by_dev(bond, slave_dev);
-	/*
-	 * Changing to the current active: do nothing; return success.
-	 */
-	if (new_active && new_active == old_active) {
-		read_unlock(&bond->lock);
-		return 0;
-	}
-
-	if (new_active &&
-	    old_active &&
-	    new_active->link == BOND_LINK_UP &&
-	    IS_UP(new_active->dev)) {
-		block_netpoll_tx();
-		write_lock_bh(&bond->curr_slave_lock);
-		bond_change_active_slave(bond, new_active);
-		write_unlock_bh(&bond->curr_slave_lock);
-		unblock_netpoll_tx();
-	} else
-		res = -EINVAL;
-
-	read_unlock(&bond->lock);
-
-	return res;
-}
-
 static int bond_info_query(struct net_device *bond_dev, struct ifbond *info)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
@@ -3257,6 +3202,7 @@ static struct rtnl_link_stats64 *bond_get_stats(struct net_device *bond_dev,
 
 static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd)
 {
+	struct bonding *bond = netdev_priv(bond_dev);
 	struct net_device *slave_dev = NULL;
 	struct ifbond k_binfo;
 	struct ifbond __user *u_binfo = NULL;
@@ -3287,7 +3233,6 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd
 
 
 		if (mii->reg_num == 1) {
-			struct bonding *bond = netdev_priv(bond_dev);
 			mii->val_out = 0;
 			read_lock(&bond->lock);
 			read_lock(&bond->curr_slave_lock);
@@ -3359,7 +3304,7 @@ static int bond_do_ioctl(struct net_device *bond_dev, struct ifreq *ifr, int cmd
 			break;
 		case BOND_CHANGE_ACTIVE_OLD:
 		case SIOCBONDCHANGEACTIVE:
-			res = bond_ioctl_change_active(bond_dev, slave_dev);
+			res = bond_option_active_slave_set(bond, slave_dev);
 			break;
 		default:
 			res = -EOPNOTSUPP;
-- 
cgit 


From 752d48b52ec929c6fd6ccd7ea9728571830fdd49 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Fri, 18 Oct 2013 17:43:37 +0200
Subject: bonding: move active_slave getting into separate function

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_options.c | 18 ++++++++++++++++++
 drivers/net/bonding/bond_sysfs.c   |  8 ++++----
 drivers/net/bonding/bonding.h      |  2 ++
 3 files changed, 24 insertions(+), 4 deletions(-)

diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c
index 09af5d10d43a..9a5223c7b4d1 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -57,6 +57,24 @@ int bond_option_mode_set(struct bonding *bond, int mode)
 	return 0;
 }
 
+static struct net_device *__bond_option_active_slave_get(struct bonding *bond,
+							 struct slave *slave)
+{
+	return USES_PRIMARY(bond->params.mode) && slave ? slave->dev : NULL;
+}
+
+struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond)
+{
+	struct slave *slave = rcu_dereference(bond->curr_active_slave);
+
+	return __bond_option_active_slave_get(bond, slave);
+}
+
+struct net_device *bond_option_active_slave_get(struct bonding *bond)
+{
+	return __bond_option_active_slave_get(bond, bond->curr_active_slave);
+}
+
 int bond_option_active_slave_set(struct bonding *bond,
 				 struct net_device *slave_dev)
 {
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index abd260047103..47749c970a01 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -1219,13 +1219,13 @@ static ssize_t bonding_show_active_slave(struct device *d,
 					 char *buf)
 {
 	struct bonding *bond = to_bond(d);
-	struct slave *curr;
+	struct net_device *slave_dev;
 	int count = 0;
 
 	rcu_read_lock();
-	curr = rcu_dereference(bond->curr_active_slave);
-	if (USES_PRIMARY(bond->params.mode) && curr)
-		count = sprintf(buf, "%s\n", curr->dev->name);
+	slave_dev = bond_option_active_slave_get_rcu(bond);
+	if (slave_dev)
+		count = sprintf(buf, "%s\n", slave_dev->name);
 	rcu_read_unlock();
 
 	return count;
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 686759dce4c6..046a60535e04 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -428,6 +428,8 @@ int bond_netlink_init(void);
 void bond_netlink_fini(void);
 int bond_option_mode_set(struct bonding *bond, int mode);
 int bond_option_active_slave_set(struct bonding *bond, struct net_device *slave_dev);
+struct net_device *bond_option_active_slave_get_rcu(struct bonding *bond);
+struct net_device *bond_option_active_slave_get(struct bonding *bond);
 
 struct bond_net {
 	struct net *		net;	/* Associated network namespace */
-- 
cgit 


From 90af231106c0b8d223c27d35464af95cb3d9cacf Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Fri, 18 Oct 2013 17:43:38 +0200
Subject: bonding: add Netlink support mode option

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_netlink.c | 56 ++++++++++++++++++++++++++++++++++++++
 include/uapi/linux/if_link.h       | 10 +++++++
 2 files changed, 66 insertions(+)

diff --git a/drivers/net/bonding/bond_netlink.c b/drivers/net/bonding/bond_netlink.c
index 3e5c5f80c320..a94f870a6b60 100644
--- a/drivers/net/bonding/bond_netlink.c
+++ b/drivers/net/bonding/bond_netlink.c
@@ -20,6 +20,10 @@
 #include <net/rtnetlink.h>
 #include "bonding.h"
 
+static const struct nla_policy bond_policy[IFLA_BOND_MAX + 1] = {
+	[IFLA_BOND_MODE]		= { .type = NLA_U8 },
+};
+
 static int bond_validate(struct nlattr *tb[], struct nlattr *data[])
 {
 	if (tb[IFLA_ADDRESS]) {
@@ -31,11 +35,63 @@ static int bond_validate(struct nlattr *tb[], struct nlattr *data[])
 	return 0;
 }
 
+static int bond_changelink(struct net_device *bond_dev,
+			   struct nlattr *tb[], struct nlattr *data[])
+{
+	struct bonding *bond = netdev_priv(bond_dev);
+	int err;
+
+	if (data && data[IFLA_BOND_MODE]) {
+		int mode = nla_get_u8(data[IFLA_BOND_MODE]);
+
+		err = bond_option_mode_set(bond, mode);
+		if (err)
+			return err;
+	}
+	return 0;
+}
+
+static int bond_newlink(struct net *src_net, struct net_device *bond_dev,
+			struct nlattr *tb[], struct nlattr *data[])
+{
+	int err;
+
+	err = bond_changelink(bond_dev, tb, data);
+	if (err < 0)
+		return err;
+
+	return register_netdevice(bond_dev);
+}
+
+static size_t bond_get_size(const struct net_device *bond_dev)
+{
+	return nla_total_size(sizeof(u8));	/* IFLA_BOND_MODE */
+}
+
+static int bond_fill_info(struct sk_buff *skb,
+			  const struct net_device *bond_dev)
+{
+	struct bonding *bond = netdev_priv(bond_dev);
+
+	if (nla_put_u8(skb, IFLA_BOND_MODE, bond->params.mode))
+		goto nla_put_failure;
+	return 0;
+
+nla_put_failure:
+	return -EMSGSIZE;
+}
+
 struct rtnl_link_ops bond_link_ops __read_mostly = {
 	.kind			= "bond",
 	.priv_size		= sizeof(struct bonding),
 	.setup			= bond_setup,
+	.maxtype		= IFLA_BOND_MAX,
+	.policy			= bond_policy,
 	.validate		= bond_validate,
+	.newlink		= bond_newlink,
+	.changelink		= bond_changelink,
+	.get_size		= bond_get_size,
+	.fill_info		= bond_fill_info,
 	.get_num_tx_queues	= bond_get_num_tx_queues,
 	.get_num_rx_queues	= bond_get_num_tx_queues, /* Use the same number
 							     as for TX queues */
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 80394e8dc3a3..06fd3fe10f3b 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -325,6 +325,16 @@ struct ifla_vxlan_port_range {
 	__be16	high;
 };
 
+/* Bonding section */
+
+enum {
+	IFLA_BOND_UNSPEC,
+	IFLA_BOND_MODE,
+	__IFLA_BOND_MAX,
+};
+
+#define IFLA_BOND_MAX	(__IFLA_BOND_MAX - 1)
+
 /* SR-IOV virtual function management section */
 
 enum {
-- 
cgit 


From ec76aa49855f6d6fea5e01de179fb57dd47c619d Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Fri, 18 Oct 2013 17:43:39 +0200
Subject: bonding: add Netlink support active_slave option

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_netlink.c | 23 ++++++++++++++++++++++-
 include/uapi/linux/if_link.h       |  1 +
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/drivers/net/bonding/bond_netlink.c b/drivers/net/bonding/bond_netlink.c
index a94f870a6b60..fe3500bb34e4 100644
--- a/drivers/net/bonding/bond_netlink.c
+++ b/drivers/net/bonding/bond_netlink.c
@@ -22,6 +22,7 @@
 
 static const struct nla_policy bond_policy[IFLA_BOND_MAX + 1] = {
 	[IFLA_BOND_MODE]		= { .type = NLA_U8 },
+	[IFLA_BOND_ACTIVE_SLAVE]	= { .type = NLA_U32 },
 };
 
 static int bond_validate(struct nlattr *tb[], struct nlattr *data[])
@@ -48,6 +49,22 @@ static int bond_changelink(struct net_device *bond_dev,
 		if (err)
 			return err;
 	}
+	if (data && data[IFLA_BOND_ACTIVE_SLAVE]) {
+		int ifindex = nla_get_u32(data[IFLA_BOND_ACTIVE_SLAVE]);
+		struct net_device *slave_dev;
+
+		if (ifindex == 0) {
+			slave_dev = NULL;
+		} else {
+			slave_dev = __dev_get_by_index(dev_net(bond_dev),
+						       ifindex);
+			if (!slave_dev)
+				return -ENODEV;
+		}
+		err = bond_option_active_slave_set(bond, slave_dev);
+		if (err)
+			return err;
+	}
 	return 0;
 }
 
@@ -66,14 +83,18 @@ static int bond_newlink(struct net *src_net, struct net_device *bond_dev,
 static size_t bond_get_size(const struct net_device *bond_dev)
 {
 	return nla_total_size(sizeof(u8));	/* IFLA_BOND_MODE */
+		+ nla_total_size(sizeof(u32));	/* IFLA_BOND_ACTIVE_SLAVE */
 }
 
 static int bond_fill_info(struct sk_buff *skb,
 			  const struct net_device *bond_dev)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
+	struct net_device *slave_dev = bond_option_active_slave_get(bond);
 
-	if (nla_put_u8(skb, IFLA_BOND_MODE, bond->params.mode))
+	if (nla_put_u8(skb, IFLA_BOND_MODE, bond->params.mode) ||
+	    (slave_dev &&
+	     nla_put_u32(skb, IFLA_BOND_ACTIVE_SLAVE, slave_dev->ifindex)))
 		goto nla_put_failure;
 	return 0;
 
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 06fd3fe10f3b..8a1e346243b7 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -330,6 +330,7 @@ struct ifla_vxlan_port_range {
 enum {
 	IFLA_BOND_UNSPEC,
 	IFLA_BOND_MODE,
+	IFLA_BOND_ACTIVE_SLAVE,
 	__IFLA_BOND_MAX,
 };
 
-- 
cgit 


From a729e83ad6f6de2cf11c0da4a5a7c0b3924d8335 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sat, 19 Oct 2013 19:09:18 -0400
Subject: bonding: Remove __exit tag from bond_netlink_fini().

It can be called from the module init function, so it cannot
be in the exit section.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_netlink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/bonding/bond_netlink.c b/drivers/net/bonding/bond_netlink.c
index fe3500bb34e4..7661261de2f0 100644
--- a/drivers/net/bonding/bond_netlink.c
+++ b/drivers/net/bonding/bond_netlink.c
@@ -123,7 +123,7 @@ int __init bond_netlink_init(void)
 	return rtnl_link_register(&bond_link_ops);
 }
 
-void __exit bond_netlink_fini(void)
+void bond_netlink_fini(void)
 {
 	rtnl_link_unregister(&bond_link_ops);
 }
-- 
cgit 


From 47d27aad44169372f358cda88a223883f6760fa5 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 18 Oct 2013 13:13:27 -0700
Subject: ipv4: gso: send_check() & segment() cleanups

inet_gso_segment() and inet_gso_send_check() are called by
skb_mac_gso_segment() under rcu lock, no need to use
rcu_read_lock() / rcu_read_unlock()

Avoid calling ip_hdr() twice per function.

We can use ip_send_check() helper.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/af_inet.c | 24 +++++++++++-------------
 1 file changed, 11 insertions(+), 13 deletions(-)

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 35913fb77dc8..4f8cd4fc451d 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1254,20 +1254,19 @@ static int inet_gso_send_check(struct sk_buff *skb)
 	if (ihl < sizeof(*iph))
 		goto out;
 
+	proto = iph->protocol;
+
+	/* Warning: after this point, iph might be no longer valid */
 	if (unlikely(!pskb_may_pull(skb, ihl)))
 		goto out;
-
 	__skb_pull(skb, ihl);
+
 	skb_reset_transport_header(skb);
-	iph = ip_hdr(skb);
-	proto = iph->protocol;
 	err = -EPROTONOSUPPORT;
 
-	rcu_read_lock();
 	ops = rcu_dereference(inet_offloads[proto]);
 	if (likely(ops && ops->callbacks.gso_send_check))
 		err = ops->callbacks.gso_send_check(skb);
-	rcu_read_unlock();
 
 out:
 	return err;
@@ -1305,23 +1304,23 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb,
 	if (ihl < sizeof(*iph))
 		goto out;
 
+	id = ntohs(iph->id);
+	proto = iph->protocol;
+
+	/* Warning: after this point, iph might be no longer valid */
 	if (unlikely(!pskb_may_pull(skb, ihl)))
 		goto out;
+	__skb_pull(skb, ihl);
 
 	tunnel = !!skb->encapsulation;
 
-	__skb_pull(skb, ihl);
 	skb_reset_transport_header(skb);
-	iph = ip_hdr(skb);
-	id = ntohs(iph->id);
-	proto = iph->protocol;
+
 	segs = ERR_PTR(-EPROTONOSUPPORT);
 
-	rcu_read_lock();
 	ops = rcu_dereference(inet_offloads[proto]);
 	if (likely(ops && ops->callbacks.gso_segment))
 		segs = ops->callbacks.gso_segment(skb, features);
-	rcu_read_unlock();
 
 	if (IS_ERR_OR_NULL(segs))
 		goto out;
@@ -1339,8 +1338,7 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb,
 			iph->id = htons(id++);
 		}
 		iph->tot_len = htons(skb->len - skb->mac_len);
-		iph->check = 0;
-		iph->check = ip_fast_csum(skb_network_header(skb), iph->ihl);
+		ip_send_check(iph);
 	} while ((skb = skb->next));
 
 out:
-- 
cgit 


From 348662a1429f95ed2d488c939c324ec152638742 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 18 Oct 2013 13:48:22 -0700
Subject: net: 8021q/bluetooth/bridge/can/ceph: Remove extern from function
 prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/8021q/vlan.h            |  28 ++---
 net/bluetooth/hidp/hidp.h   |   4 +-
 net/bridge/br_private.h     | 299 ++++++++++++++++++++------------------------
 net/bridge/br_private_stp.h |  24 ++--
 net/can/af_can.h            |   6 +-
 net/ceph/auth_none.h        |   2 +-
 net/ceph/auth_x.h           |   2 +-
 net/ceph/crypto.h           |  48 ++++---
 8 files changed, 194 insertions(+), 219 deletions(-)

diff --git a/net/8021q/vlan.h b/net/8021q/vlan.h
index ba5983f34c42..a2caf00b82cc 100644
--- a/net/8021q/vlan.h
+++ b/net/8021q/vlan.h
@@ -196,12 +196,12 @@ static inline u32 vlan_get_ingress_priority(struct net_device *dev,
 }
 
 #ifdef CONFIG_VLAN_8021Q_GVRP
-extern int vlan_gvrp_request_join(const struct net_device *dev);
-extern void vlan_gvrp_request_leave(const struct net_device *dev);
-extern int vlan_gvrp_init_applicant(struct net_device *dev);
-extern void vlan_gvrp_uninit_applicant(struct net_device *dev);
-extern int vlan_gvrp_init(void);
-extern void vlan_gvrp_uninit(void);
+int vlan_gvrp_request_join(const struct net_device *dev);
+void vlan_gvrp_request_leave(const struct net_device *dev);
+int vlan_gvrp_init_applicant(struct net_device *dev);
+void vlan_gvrp_uninit_applicant(struct net_device *dev);
+int vlan_gvrp_init(void);
+void vlan_gvrp_uninit(void);
 #else
 static inline int vlan_gvrp_request_join(const struct net_device *dev) { return 0; }
 static inline void vlan_gvrp_request_leave(const struct net_device *dev) {}
@@ -212,12 +212,12 @@ static inline void vlan_gvrp_uninit(void) {}
 #endif
 
 #ifdef CONFIG_VLAN_8021Q_MVRP
-extern int vlan_mvrp_request_join(const struct net_device *dev);
-extern void vlan_mvrp_request_leave(const struct net_device *dev);
-extern int vlan_mvrp_init_applicant(struct net_device *dev);
-extern void vlan_mvrp_uninit_applicant(struct net_device *dev);
-extern int vlan_mvrp_init(void);
-extern void vlan_mvrp_uninit(void);
+int vlan_mvrp_request_join(const struct net_device *dev);
+void vlan_mvrp_request_leave(const struct net_device *dev);
+int vlan_mvrp_init_applicant(struct net_device *dev);
+void vlan_mvrp_uninit_applicant(struct net_device *dev);
+int vlan_mvrp_init(void);
+void vlan_mvrp_uninit(void);
 #else
 static inline int vlan_mvrp_request_join(const struct net_device *dev) { return 0; }
 static inline void vlan_mvrp_request_leave(const struct net_device *dev) {}
@@ -229,8 +229,8 @@ static inline void vlan_mvrp_uninit(void) {}
 
 extern const char vlan_fullname[];
 extern const char vlan_version[];
-extern int vlan_netlink_init(void);
-extern void vlan_netlink_fini(void);
+int vlan_netlink_init(void);
+void vlan_netlink_fini(void);
 
 extern struct rtnl_link_ops vlan_link_ops;
 
diff --git a/net/bluetooth/hidp/hidp.h b/net/bluetooth/hidp/hidp.h
index 9e6cc3553105..ab5241400cf7 100644
--- a/net/bluetooth/hidp/hidp.h
+++ b/net/bluetooth/hidp/hidp.h
@@ -182,7 +182,7 @@ struct hidp_session {
 };
 
 /* HIDP init defines */
-extern int __init hidp_init_sockets(void);
-extern void __exit hidp_cleanup_sockets(void);
+int __init hidp_init_sockets(void);
+void __exit hidp_cleanup_sockets(void);
 
 #endif /* __HIDP_H */
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index efb57d911569..767c4dad8504 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -344,10 +344,9 @@ static inline int br_is_root_bridge(const struct net_bridge *br)
 }
 
 /* br_device.c */
-extern void br_dev_setup(struct net_device *dev);
-extern void br_dev_delete(struct net_device *dev, struct list_head *list);
-extern netdev_tx_t br_dev_xmit(struct sk_buff *skb,
-			       struct net_device *dev);
+void br_dev_setup(struct net_device *dev);
+void br_dev_delete(struct net_device *dev, struct list_head *list);
+netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev);
 #ifdef CONFIG_NET_POLL_CONTROLLER
 static inline void br_netpoll_send_skb(const struct net_bridge_port *p,
 				       struct sk_buff *skb)
@@ -358,8 +357,8 @@ static inline void br_netpoll_send_skb(const struct net_bridge_port *p,
 		netpoll_send_skb(np, skb);
 }
 
-extern int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp);
-extern void br_netpoll_disable(struct net_bridge_port *p);
+int br_netpoll_enable(struct net_bridge_port *p, gfp_t gfp);
+void br_netpoll_disable(struct net_bridge_port *p);
 #else
 static inline void br_netpoll_send_skb(const struct net_bridge_port *p,
 				       struct sk_buff *skb)
@@ -377,116 +376,99 @@ static inline void br_netpoll_disable(struct net_bridge_port *p)
 #endif
 
 /* br_fdb.c */
-extern int br_fdb_init(void);
-extern void br_fdb_fini(void);
-extern void br_fdb_flush(struct net_bridge *br);
-extern void br_fdb_changeaddr(struct net_bridge_port *p,
-			      const unsigned char *newaddr);
-extern void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr);
-extern void br_fdb_cleanup(unsigned long arg);
-extern void br_fdb_delete_by_port(struct net_bridge *br,
-				  const struct net_bridge_port *p, int do_all);
-extern struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br,
-						 const unsigned char *addr,
-						 __u16 vid);
-extern int br_fdb_test_addr(struct net_device *dev, unsigned char *addr);
-extern int br_fdb_fillbuf(struct net_bridge *br, void *buf,
-			  unsigned long count, unsigned long off);
-extern int br_fdb_insert(struct net_bridge *br,
-			 struct net_bridge_port *source,
-			 const unsigned char *addr,
-			 u16 vid);
-extern void br_fdb_update(struct net_bridge *br,
-			  struct net_bridge_port *source,
-			  const unsigned char *addr,
-			  u16 vid);
-extern int fdb_delete_by_addr(struct net_bridge *br, const u8 *addr, u16 vid);
-
-extern int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
-			 struct net_device *dev,
-			 const unsigned char *addr);
-extern int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[],
-		      struct net_device *dev,
-		      const unsigned char *addr,
-		      u16 nlh_flags);
-extern int br_fdb_dump(struct sk_buff *skb,
-		       struct netlink_callback *cb,
-		       struct net_device *dev,
-		       int idx);
+int br_fdb_init(void);
+void br_fdb_fini(void);
+void br_fdb_flush(struct net_bridge *br);
+void br_fdb_changeaddr(struct net_bridge_port *p, const unsigned char *newaddr);
+void br_fdb_change_mac_address(struct net_bridge *br, const u8 *newaddr);
+void br_fdb_cleanup(unsigned long arg);
+void br_fdb_delete_by_port(struct net_bridge *br,
+			   const struct net_bridge_port *p, int do_all);
+struct net_bridge_fdb_entry *__br_fdb_get(struct net_bridge *br,
+					  const unsigned char *addr, __u16 vid);
+int br_fdb_test_addr(struct net_device *dev, unsigned char *addr);
+int br_fdb_fillbuf(struct net_bridge *br, void *buf, unsigned long count,
+		   unsigned long off);
+int br_fdb_insert(struct net_bridge *br, struct net_bridge_port *source,
+		  const unsigned char *addr, u16 vid);
+void br_fdb_update(struct net_bridge *br, struct net_bridge_port *source,
+		   const unsigned char *addr, u16 vid);
+int fdb_delete_by_addr(struct net_bridge *br, const u8 *addr, u16 vid);
+
+int br_fdb_delete(struct ndmsg *ndm, struct nlattr *tb[],
+		  struct net_device *dev, const unsigned char *addr);
+int br_fdb_add(struct ndmsg *nlh, struct nlattr *tb[], struct net_device *dev,
+	       const unsigned char *addr, u16 nlh_flags);
+int br_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
+		struct net_device *dev, int idx);
 
 /* br_forward.c */
-extern void br_deliver(const struct net_bridge_port *to,
-		struct sk_buff *skb);
-extern int br_dev_queue_push_xmit(struct sk_buff *skb);
-extern void br_forward(const struct net_bridge_port *to,
+void br_deliver(const struct net_bridge_port *to, struct sk_buff *skb);
+int br_dev_queue_push_xmit(struct sk_buff *skb);
+void br_forward(const struct net_bridge_port *to,
 		struct sk_buff *skb, struct sk_buff *skb0);
-extern int br_forward_finish(struct sk_buff *skb);
-extern void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb,
-			     bool unicast);
-extern void br_flood_forward(struct net_bridge *br, struct sk_buff *skb,
-			     struct sk_buff *skb2, bool unicast);
+int br_forward_finish(struct sk_buff *skb);
+void br_flood_deliver(struct net_bridge *br, struct sk_buff *skb, bool unicast);
+void br_flood_forward(struct net_bridge *br, struct sk_buff *skb,
+		      struct sk_buff *skb2, bool unicast);
 
 /* br_if.c */
-extern void br_port_carrier_check(struct net_bridge_port *p);
-extern int br_add_bridge(struct net *net, const char *name);
-extern int br_del_bridge(struct net *net, const char *name);
-extern void br_net_exit(struct net *net);
-extern int br_add_if(struct net_bridge *br,
-	      struct net_device *dev);
-extern int br_del_if(struct net_bridge *br,
-	      struct net_device *dev);
-extern int br_min_mtu(const struct net_bridge *br);
-extern netdev_features_t br_features_recompute(struct net_bridge *br,
-	netdev_features_t features);
+void br_port_carrier_check(struct net_bridge_port *p);
+int br_add_bridge(struct net *net, const char *name);
+int br_del_bridge(struct net *net, const char *name);
+void br_net_exit(struct net *net);
+int br_add_if(struct net_bridge *br, struct net_device *dev);
+int br_del_if(struct net_bridge *br, struct net_device *dev);
+int br_min_mtu(const struct net_bridge *br);
+netdev_features_t br_features_recompute(struct net_bridge *br,
+					netdev_features_t features);
 
 /* br_input.c */
-extern int br_handle_frame_finish(struct sk_buff *skb);
-extern rx_handler_result_t br_handle_frame(struct sk_buff **pskb);
+int br_handle_frame_finish(struct sk_buff *skb);
+rx_handler_result_t br_handle_frame(struct sk_buff **pskb);
 
 /* br_ioctl.c */
-extern int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
-extern int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __user *arg);
+int br_dev_ioctl(struct net_device *dev, struct ifreq *rq, int cmd);
+int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd,
+			     void __user *arg);
 
 /* br_multicast.c */
 #ifdef CONFIG_BRIDGE_IGMP_SNOOPING
 extern unsigned int br_mdb_rehash_seq;
-extern int br_multicast_rcv(struct net_bridge *br,
-			    struct net_bridge_port *port,
-			    struct sk_buff *skb);
-extern struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
-					       struct sk_buff *skb, u16 vid);
-extern void br_multicast_add_port(struct net_bridge_port *port);
-extern void br_multicast_del_port(struct net_bridge_port *port);
-extern void br_multicast_enable_port(struct net_bridge_port *port);
-extern void br_multicast_disable_port(struct net_bridge_port *port);
-extern void br_multicast_init(struct net_bridge *br);
-extern void br_multicast_open(struct net_bridge *br);
-extern void br_multicast_stop(struct net_bridge *br);
-extern void br_multicast_deliver(struct net_bridge_mdb_entry *mdst,
-				 struct sk_buff *skb);
-extern void br_multicast_forward(struct net_bridge_mdb_entry *mdst,
-				 struct sk_buff *skb, struct sk_buff *skb2);
-extern int br_multicast_set_router(struct net_bridge *br, unsigned long val);
-extern int br_multicast_set_port_router(struct net_bridge_port *p,
-					unsigned long val);
-extern int br_multicast_toggle(struct net_bridge *br, unsigned long val);
-extern int br_multicast_set_querier(struct net_bridge *br, unsigned long val);
-extern int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val);
-extern struct net_bridge_mdb_entry *br_mdb_ip_get(
-				struct net_bridge_mdb_htable *mdb,
-				struct br_ip *dst);
-extern struct net_bridge_mdb_entry *br_multicast_new_group(struct net_bridge *br,
-				struct net_bridge_port *port, struct br_ip *group);
-extern void br_multicast_free_pg(struct rcu_head *head);
-extern struct net_bridge_port_group *br_multicast_new_port_group(
-				struct net_bridge_port *port,
-				struct br_ip *group,
-				struct net_bridge_port_group __rcu *next,
-				unsigned char state);
-extern void br_mdb_init(void);
-extern void br_mdb_uninit(void);
-extern void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port,
-			  struct br_ip *group, int type);
+int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port,
+		     struct sk_buff *skb);
+struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
+					struct sk_buff *skb, u16 vid);
+void br_multicast_add_port(struct net_bridge_port *port);
+void br_multicast_del_port(struct net_bridge_port *port);
+void br_multicast_enable_port(struct net_bridge_port *port);
+void br_multicast_disable_port(struct net_bridge_port *port);
+void br_multicast_init(struct net_bridge *br);
+void br_multicast_open(struct net_bridge *br);
+void br_multicast_stop(struct net_bridge *br);
+void br_multicast_deliver(struct net_bridge_mdb_entry *mdst,
+			  struct sk_buff *skb);
+void br_multicast_forward(struct net_bridge_mdb_entry *mdst,
+			  struct sk_buff *skb, struct sk_buff *skb2);
+int br_multicast_set_router(struct net_bridge *br, unsigned long val);
+int br_multicast_set_port_router(struct net_bridge_port *p, unsigned long val);
+int br_multicast_toggle(struct net_bridge *br, unsigned long val);
+int br_multicast_set_querier(struct net_bridge *br, unsigned long val);
+int br_multicast_set_hash_max(struct net_bridge *br, unsigned long val);
+struct net_bridge_mdb_entry *
+br_mdb_ip_get(struct net_bridge_mdb_htable *mdb, struct br_ip *dst);
+struct net_bridge_mdb_entry *
+br_multicast_new_group(struct net_bridge *br, struct net_bridge_port *port,
+		       struct br_ip *group);
+void br_multicast_free_pg(struct rcu_head *head);
+struct net_bridge_port_group *
+br_multicast_new_port_group(struct net_bridge_port *port, struct br_ip *group,
+			    struct net_bridge_port_group __rcu *next,
+			    unsigned char state);
+void br_mdb_init(void);
+void br_mdb_uninit(void);
+void br_mdb_notify(struct net_device *dev, struct net_bridge_port *port,
+		   struct br_ip *group, int type);
 
 #define mlock_dereference(X, br) \
 	rcu_dereference_protected(X, lockdep_is_held(&br->multicast_lock))
@@ -591,22 +573,21 @@ static inline void br_mdb_uninit(void)
 
 /* br_vlan.c */
 #ifdef CONFIG_BRIDGE_VLAN_FILTERING
-extern bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v,
-			       struct sk_buff *skb, u16 *vid);
-extern bool br_allowed_egress(struct net_bridge *br,
-			      const struct net_port_vlans *v,
-			      const struct sk_buff *skb);
-extern struct sk_buff *br_handle_vlan(struct net_bridge *br,
-				      const struct net_port_vlans *v,
-				      struct sk_buff *skb);
-extern int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags);
-extern int br_vlan_delete(struct net_bridge *br, u16 vid);
-extern void br_vlan_flush(struct net_bridge *br);
-extern int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val);
-extern int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags);
-extern int nbp_vlan_delete(struct net_bridge_port *port, u16 vid);
-extern void nbp_vlan_flush(struct net_bridge_port *port);
-extern bool nbp_vlan_find(struct net_bridge_port *port, u16 vid);
+bool br_allowed_ingress(struct net_bridge *br, struct net_port_vlans *v,
+			struct sk_buff *skb, u16 *vid);
+bool br_allowed_egress(struct net_bridge *br, const struct net_port_vlans *v,
+		       const struct sk_buff *skb);
+struct sk_buff *br_handle_vlan(struct net_bridge *br,
+			       const struct net_port_vlans *v,
+			       struct sk_buff *skb);
+int br_vlan_add(struct net_bridge *br, u16 vid, u16 flags);
+int br_vlan_delete(struct net_bridge *br, u16 vid);
+void br_vlan_flush(struct net_bridge *br);
+int br_vlan_filter_toggle(struct net_bridge *br, unsigned long val);
+int nbp_vlan_add(struct net_bridge_port *port, u16 vid, u16 flags);
+int nbp_vlan_delete(struct net_bridge_port *port, u16 vid);
+void nbp_vlan_flush(struct net_bridge_port *port);
+bool nbp_vlan_find(struct net_bridge_port *port, u16 vid);
 
 static inline struct net_port_vlans *br_get_vlan_info(
 						const struct net_bridge *br)
@@ -727,9 +708,9 @@ static inline u16 br_get_pvid(const struct net_port_vlans *v)
 
 /* br_netfilter.c */
 #ifdef CONFIG_BRIDGE_NETFILTER
-extern int br_netfilter_init(void);
-extern void br_netfilter_fini(void);
-extern void br_netfilter_rtable_init(struct net_bridge *);
+int br_netfilter_init(void);
+void br_netfilter_fini(void);
+void br_netfilter_rtable_init(struct net_bridge *);
 #else
 #define br_netfilter_init()	(0)
 #define br_netfilter_fini()	do { } while(0)
@@ -737,43 +718,39 @@ extern void br_netfilter_rtable_init(struct net_bridge *);
 #endif
 
 /* br_stp.c */
-extern void br_log_state(const struct net_bridge_port *p);
-extern struct net_bridge_port *br_get_port(struct net_bridge *br,
-					   u16 port_no);
-extern void br_init_port(struct net_bridge_port *p);
-extern void br_become_designated_port(struct net_bridge_port *p);
+void br_log_state(const struct net_bridge_port *p);
+struct net_bridge_port *br_get_port(struct net_bridge *br, u16 port_no);
+void br_init_port(struct net_bridge_port *p);
+void br_become_designated_port(struct net_bridge_port *p);
 
-extern void __br_set_forward_delay(struct net_bridge *br, unsigned long t);
-extern int br_set_forward_delay(struct net_bridge *br, unsigned long x);
-extern int br_set_hello_time(struct net_bridge *br, unsigned long x);
-extern int br_set_max_age(struct net_bridge *br, unsigned long x);
+void __br_set_forward_delay(struct net_bridge *br, unsigned long t);
+int br_set_forward_delay(struct net_bridge *br, unsigned long x);
+int br_set_hello_time(struct net_bridge *br, unsigned long x);
+int br_set_max_age(struct net_bridge *br, unsigned long x);
 
 
 /* br_stp_if.c */
-extern void br_stp_enable_bridge(struct net_bridge *br);
-extern void br_stp_disable_bridge(struct net_bridge *br);
-extern void br_stp_set_enabled(struct net_bridge *br, unsigned long val);
-extern void br_stp_enable_port(struct net_bridge_port *p);
-extern void br_stp_disable_port(struct net_bridge_port *p);
-extern bool br_stp_recalculate_bridge_id(struct net_bridge *br);
-extern void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a);
-extern void br_stp_set_bridge_priority(struct net_bridge *br,
-				       u16 newprio);
-extern int br_stp_set_port_priority(struct net_bridge_port *p,
-				    unsigned long newprio);
-extern int br_stp_set_path_cost(struct net_bridge_port *p,
-				unsigned long path_cost);
-extern ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id);
+void br_stp_enable_bridge(struct net_bridge *br);
+void br_stp_disable_bridge(struct net_bridge *br);
+void br_stp_set_enabled(struct net_bridge *br, unsigned long val);
+void br_stp_enable_port(struct net_bridge_port *p);
+void br_stp_disable_port(struct net_bridge_port *p);
+bool br_stp_recalculate_bridge_id(struct net_bridge *br);
+void br_stp_change_bridge_id(struct net_bridge *br, const unsigned char *a);
+void br_stp_set_bridge_priority(struct net_bridge *br, u16 newprio);
+int br_stp_set_port_priority(struct net_bridge_port *p, unsigned long newprio);
+int br_stp_set_path_cost(struct net_bridge_port *p, unsigned long path_cost);
+ssize_t br_show_bridge_id(char *buf, const struct bridge_id *id);
 
 /* br_stp_bpdu.c */
 struct stp_proto;
-extern void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb,
-		       struct net_device *dev);
+void br_stp_rcv(const struct stp_proto *proto, struct sk_buff *skb,
+		struct net_device *dev);
 
 /* br_stp_timer.c */
-extern void br_stp_timer_init(struct net_bridge *br);
-extern void br_stp_port_timer_init(struct net_bridge_port *p);
-extern unsigned long br_timer_value(const struct timer_list *timer);
+void br_stp_timer_init(struct net_bridge *br);
+void br_stp_port_timer_init(struct net_bridge_port *p);
+unsigned long br_timer_value(const struct timer_list *timer);
 
 /* br.c */
 #if IS_ENABLED(CONFIG_ATM_LANE)
@@ -782,23 +759,23 @@ extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr)
 
 /* br_netlink.c */
 extern struct rtnl_link_ops br_link_ops;
-extern int br_netlink_init(void);
-extern void br_netlink_fini(void);
-extern void br_ifinfo_notify(int event, struct net_bridge_port *port);
-extern int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg);
-extern int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg);
-extern int br_getlink(struct sk_buff *skb, u32 pid, u32 seq,
-		      struct net_device *dev, u32 filter_mask);
+int br_netlink_init(void);
+void br_netlink_fini(void);
+void br_ifinfo_notify(int event, struct net_bridge_port *port);
+int br_setlink(struct net_device *dev, struct nlmsghdr *nlmsg);
+int br_dellink(struct net_device *dev, struct nlmsghdr *nlmsg);
+int br_getlink(struct sk_buff *skb, u32 pid, u32 seq, struct net_device *dev,
+	       u32 filter_mask);
 
 #ifdef CONFIG_SYSFS
 /* br_sysfs_if.c */
 extern const struct sysfs_ops brport_sysfs_ops;
-extern int br_sysfs_addif(struct net_bridge_port *p);
-extern int br_sysfs_renameif(struct net_bridge_port *p);
+int br_sysfs_addif(struct net_bridge_port *p);
+int br_sysfs_renameif(struct net_bridge_port *p);
 
 /* br_sysfs_br.c */
-extern int br_sysfs_addbr(struct net_device *dev);
-extern void br_sysfs_delbr(struct net_device *dev);
+int br_sysfs_addbr(struct net_device *dev);
+void br_sysfs_delbr(struct net_device *dev);
 
 #else
 
diff --git a/net/bridge/br_private_stp.h b/net/bridge/br_private_stp.h
index 0c0fe36e7aa9..2fe910c4e170 100644
--- a/net/bridge/br_private_stp.h
+++ b/net/bridge/br_private_stp.h
@@ -51,19 +51,19 @@ static inline int br_is_designated_port(const struct net_bridge_port *p)
 
 
 /* br_stp.c */
-extern void br_become_root_bridge(struct net_bridge *br);
-extern void br_config_bpdu_generation(struct net_bridge *);
-extern void br_configuration_update(struct net_bridge *);
-extern void br_port_state_selection(struct net_bridge *);
-extern void br_received_config_bpdu(struct net_bridge_port *p,
-				    const struct br_config_bpdu *bpdu);
-extern void br_received_tcn_bpdu(struct net_bridge_port *p);
-extern void br_transmit_config(struct net_bridge_port *p);
-extern void br_transmit_tcn(struct net_bridge *br);
-extern void br_topology_change_detection(struct net_bridge *br);
+void br_become_root_bridge(struct net_bridge *br);
+void br_config_bpdu_generation(struct net_bridge *);
+void br_configuration_update(struct net_bridge *);
+void br_port_state_selection(struct net_bridge *);
+void br_received_config_bpdu(struct net_bridge_port *p,
+			     const struct br_config_bpdu *bpdu);
+void br_received_tcn_bpdu(struct net_bridge_port *p);
+void br_transmit_config(struct net_bridge_port *p);
+void br_transmit_tcn(struct net_bridge *br);
+void br_topology_change_detection(struct net_bridge *br);
 
 /* br_stp_bpdu.c */
-extern void br_send_config_bpdu(struct net_bridge_port *, struct br_config_bpdu *);
-extern void br_send_tcn_bpdu(struct net_bridge_port *);
+void br_send_config_bpdu(struct net_bridge_port *, struct br_config_bpdu *);
+void br_send_tcn_bpdu(struct net_bridge_port *);
 
 #endif
diff --git a/net/can/af_can.h b/net/can/af_can.h
index 1dccb4c33894..6de58b40535c 100644
--- a/net/can/af_can.h
+++ b/net/can/af_can.h
@@ -108,9 +108,9 @@ struct s_pstats {
 extern struct dev_rcv_lists can_rx_alldev_list;
 
 /* function prototypes for the CAN networklayer procfs (proc.c) */
-extern void can_init_proc(void);
-extern void can_remove_proc(void);
-extern void can_stat_update(unsigned long data);
+void can_init_proc(void);
+void can_remove_proc(void);
+void can_stat_update(unsigned long data);
 
 /* structures and variables from af_can.c needed in proc.c for reading */
 extern struct timer_list can_stattimer;    /* timer for statistics update */
diff --git a/net/ceph/auth_none.h b/net/ceph/auth_none.h
index ed7d088b1bc9..059a3ce4b53f 100644
--- a/net/ceph/auth_none.h
+++ b/net/ceph/auth_none.h
@@ -23,7 +23,7 @@ struct ceph_auth_none_info {
 	struct ceph_none_authorizer au;   /* we only need one; it's static */
 };
 
-extern int ceph_auth_none_init(struct ceph_auth_client *ac);
+int ceph_auth_none_init(struct ceph_auth_client *ac);
 
 #endif
 
diff --git a/net/ceph/auth_x.h b/net/ceph/auth_x.h
index c5a058da7ac8..65ee72082d99 100644
--- a/net/ceph/auth_x.h
+++ b/net/ceph/auth_x.h
@@ -45,7 +45,7 @@ struct ceph_x_info {
 	struct ceph_x_authorizer auth_authorizer;
 };
 
-extern int ceph_x_init(struct ceph_auth_client *ac);
+int ceph_x_init(struct ceph_auth_client *ac);
 
 #endif
 
diff --git a/net/ceph/crypto.h b/net/ceph/crypto.h
index 3572dc518bc9..d1498224c49d 100644
--- a/net/ceph/crypto.h
+++ b/net/ceph/crypto.h
@@ -20,34 +20,32 @@ static inline void ceph_crypto_key_destroy(struct ceph_crypto_key *key)
 		kfree(key->key);
 }
 
-extern int ceph_crypto_key_clone(struct ceph_crypto_key *dst,
-				 const struct ceph_crypto_key *src);
-extern int ceph_crypto_key_encode(struct ceph_crypto_key *key,
-				  void **p, void *end);
-extern int ceph_crypto_key_decode(struct ceph_crypto_key *key,
-				  void **p, void *end);
-extern int ceph_crypto_key_unarmor(struct ceph_crypto_key *key, const char *in);
+int ceph_crypto_key_clone(struct ceph_crypto_key *dst,
+			  const struct ceph_crypto_key *src);
+int ceph_crypto_key_encode(struct ceph_crypto_key *key, void **p, void *end);
+int ceph_crypto_key_decode(struct ceph_crypto_key *key, void **p, void *end);
+int ceph_crypto_key_unarmor(struct ceph_crypto_key *key, const char *in);
 
 /* crypto.c */
-extern int ceph_decrypt(struct ceph_crypto_key *secret,
-			void *dst, size_t *dst_len,
-			const void *src, size_t src_len);
-extern int ceph_encrypt(struct ceph_crypto_key *secret,
-			void *dst, size_t *dst_len,
-			const void *src, size_t src_len);
-extern int ceph_decrypt2(struct ceph_crypto_key *secret,
-			void *dst1, size_t *dst1_len,
-			void *dst2, size_t *dst2_len,
-			const void *src, size_t src_len);
-extern int ceph_encrypt2(struct ceph_crypto_key *secret,
-			 void *dst, size_t *dst_len,
-			 const void *src1, size_t src1_len,
-			 const void *src2, size_t src2_len);
-extern int ceph_crypto_init(void);
-extern void ceph_crypto_shutdown(void);
+int ceph_decrypt(struct ceph_crypto_key *secret,
+		 void *dst, size_t *dst_len,
+		 const void *src, size_t src_len);
+int ceph_encrypt(struct ceph_crypto_key *secret,
+		 void *dst, size_t *dst_len,
+		 const void *src, size_t src_len);
+int ceph_decrypt2(struct ceph_crypto_key *secret,
+		  void *dst1, size_t *dst1_len,
+		  void *dst2, size_t *dst2_len,
+		  const void *src, size_t src_len);
+int ceph_encrypt2(struct ceph_crypto_key *secret,
+		  void *dst, size_t *dst_len,
+		  const void *src1, size_t src1_len,
+		  const void *src2, size_t src2_len);
+int ceph_crypto_init(void);
+void ceph_crypto_shutdown(void);
 
 /* armor.c */
-extern int ceph_armor(char *dst, const char *src, const char *end);
-extern int ceph_unarmor(char *dst, const char *src, const char *end);
+int ceph_armor(char *dst, const char *src, const char *end);
+int ceph_unarmor(char *dst, const char *src, const char *end);
 
 #endif
-- 
cgit 


From a402a5aa9b4cbb42cc41bf573d2e5c4713541af0 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 18 Oct 2013 13:48:23 -0700
Subject: net: dccp: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/dccp/ackvec.h                   |  21 ++--
 net/dccp/ccid.h                     |  18 ++--
 net/dccp/ccids/lib/loss_interval.h  |   8 +-
 net/dccp/ccids/lib/packet_history.h |  25 +++--
 net/dccp/ccids/lib/tfrc.h           |  22 ++---
 net/dccp/dccp.h                     | 186 +++++++++++++++++-------------------
 net/dccp/feat.h                     |  26 ++---
 7 files changed, 148 insertions(+), 158 deletions(-)

diff --git a/net/dccp/ackvec.h b/net/dccp/ackvec.h
index a269aa7f7923..3284bfa988c0 100644
--- a/net/dccp/ackvec.h
+++ b/net/dccp/ackvec.h
@@ -101,16 +101,16 @@ struct dccp_ackvec_record {
 	u8		 avr_ack_nonce:1;
 };
 
-extern int dccp_ackvec_init(void);
-extern void dccp_ackvec_exit(void);
+int dccp_ackvec_init(void);
+void dccp_ackvec_exit(void);
 
-extern struct dccp_ackvec *dccp_ackvec_alloc(const gfp_t priority);
-extern void dccp_ackvec_free(struct dccp_ackvec *av);
+struct dccp_ackvec *dccp_ackvec_alloc(const gfp_t priority);
+void dccp_ackvec_free(struct dccp_ackvec *av);
 
-extern void dccp_ackvec_input(struct dccp_ackvec *av, struct sk_buff *skb);
-extern int  dccp_ackvec_update_records(struct dccp_ackvec *av, u64 seq, u8 sum);
-extern void dccp_ackvec_clear_state(struct dccp_ackvec *av, const u64 ackno);
-extern u16  dccp_ackvec_buflen(const struct dccp_ackvec *av);
+void dccp_ackvec_input(struct dccp_ackvec *av, struct sk_buff *skb);
+int dccp_ackvec_update_records(struct dccp_ackvec *av, u64 seq, u8 sum);
+void dccp_ackvec_clear_state(struct dccp_ackvec *av, const u64 ackno);
+u16 dccp_ackvec_buflen(const struct dccp_ackvec *av);
 
 static inline bool dccp_ackvec_is_empty(const struct dccp_ackvec *av)
 {
@@ -133,7 +133,6 @@ struct dccp_ackvec_parsed {
 	struct list_head node;
 };
 
-extern int dccp_ackvec_parsed_add(struct list_head *head,
-				  u8 *vec, u8 len, u8 nonce);
-extern void dccp_ackvec_parsed_cleanup(struct list_head *parsed_chunks);
+int dccp_ackvec_parsed_add(struct list_head *head, u8 *vec, u8 len, u8 nonce);
+void dccp_ackvec_parsed_cleanup(struct list_head *parsed_chunks);
 #endif /* _ACKVEC_H */
diff --git a/net/dccp/ccid.h b/net/dccp/ccid.h
index fb85d371a8de..6eb837a47b5c 100644
--- a/net/dccp/ccid.h
+++ b/net/dccp/ccid.h
@@ -93,8 +93,8 @@ extern struct ccid_operations ccid2_ops;
 extern struct ccid_operations ccid3_ops;
 #endif
 
-extern int  ccid_initialize_builtins(void);
-extern void ccid_cleanup_builtins(void);
+int ccid_initialize_builtins(void);
+void ccid_cleanup_builtins(void);
 
 struct ccid {
 	struct ccid_operations *ccid_ops;
@@ -106,12 +106,12 @@ static inline void *ccid_priv(const struct ccid *ccid)
 	return (void *)ccid->ccid_priv;
 }
 
-extern bool ccid_support_check(u8 const *ccid_array, u8 array_len);
-extern int  ccid_get_builtin_ccids(u8 **ccid_array, u8 *array_len);
-extern int  ccid_getsockopt_builtin_ccids(struct sock *sk, int len,
-					  char __user *, int __user *);
+bool ccid_support_check(u8 const *ccid_array, u8 array_len);
+int ccid_get_builtin_ccids(u8 **ccid_array, u8 *array_len);
+int ccid_getsockopt_builtin_ccids(struct sock *sk, int len,
+				  char __user *, int __user *);
 
-extern struct ccid *ccid_new(const u8 id, struct sock *sk, bool rx);
+struct ccid *ccid_new(const u8 id, struct sock *sk, bool rx);
 
 static inline int ccid_get_current_rx_ccid(struct dccp_sock *dp)
 {
@@ -131,8 +131,8 @@ static inline int ccid_get_current_tx_ccid(struct dccp_sock *dp)
 	return ccid->ccid_ops->ccid_id;
 }
 
-extern void ccid_hc_rx_delete(struct ccid *ccid, struct sock *sk);
-extern void ccid_hc_tx_delete(struct ccid *ccid, struct sock *sk);
+void ccid_hc_rx_delete(struct ccid *ccid, struct sock *sk);
+void ccid_hc_tx_delete(struct ccid *ccid, struct sock *sk);
 
 /*
  * Congestion control of queued data packets via CCID decision.
diff --git a/net/dccp/ccids/lib/loss_interval.h b/net/dccp/ccids/lib/loss_interval.h
index d1d2f5383b7d..57f631a86ccd 100644
--- a/net/dccp/ccids/lib/loss_interval.h
+++ b/net/dccp/ccids/lib/loss_interval.h
@@ -65,9 +65,9 @@ static inline u8 tfrc_lh_length(struct tfrc_loss_hist *lh)
 
 struct tfrc_rx_hist;
 
-extern int  tfrc_lh_interval_add(struct tfrc_loss_hist *, struct tfrc_rx_hist *,
-				 u32 (*first_li)(struct sock *), struct sock *);
-extern u8   tfrc_lh_update_i_mean(struct tfrc_loss_hist *lh, struct sk_buff *);
-extern void tfrc_lh_cleanup(struct tfrc_loss_hist *lh);
+int tfrc_lh_interval_add(struct tfrc_loss_hist *, struct tfrc_rx_hist *,
+			 u32 (*first_li)(struct sock *), struct sock *);
+u8 tfrc_lh_update_i_mean(struct tfrc_loss_hist *lh, struct sk_buff *);
+void tfrc_lh_cleanup(struct tfrc_loss_hist *lh);
 
 #endif /* _DCCP_LI_HIST_ */
diff --git a/net/dccp/ccids/lib/packet_history.h b/net/dccp/ccids/lib/packet_history.h
index 7ee4a9d9d335..ee362b0b630d 100644
--- a/net/dccp/ccids/lib/packet_history.h
+++ b/net/dccp/ccids/lib/packet_history.h
@@ -60,8 +60,8 @@ static inline struct tfrc_tx_hist_entry *
 	return head;
 }
 
-extern int  tfrc_tx_hist_add(struct tfrc_tx_hist_entry **headp, u64 seqno);
-extern void tfrc_tx_hist_purge(struct tfrc_tx_hist_entry **headp);
+int tfrc_tx_hist_add(struct tfrc_tx_hist_entry **headp, u64 seqno);
+void tfrc_tx_hist_purge(struct tfrc_tx_hist_entry **headp);
 
 /* Subtraction a-b modulo-16, respects circular wrap-around */
 #define SUB16(a, b) (((a) + 16 - (b)) & 0xF)
@@ -139,20 +139,17 @@ static inline bool tfrc_rx_hist_loss_pending(const struct tfrc_rx_hist *h)
 	return h->loss_count > 0;
 }
 
-extern void tfrc_rx_hist_add_packet(struct tfrc_rx_hist *h,
-				    const struct sk_buff *skb, const u64 ndp);
+void tfrc_rx_hist_add_packet(struct tfrc_rx_hist *h, const struct sk_buff *skb,
+			     const u64 ndp);
 
-extern int tfrc_rx_hist_duplicate(struct tfrc_rx_hist *h, struct sk_buff *skb);
+int tfrc_rx_hist_duplicate(struct tfrc_rx_hist *h, struct sk_buff *skb);
 
 struct tfrc_loss_hist;
-extern int  tfrc_rx_handle_loss(struct tfrc_rx_hist *h,
-				struct tfrc_loss_hist *lh,
-				struct sk_buff *skb, const u64 ndp,
-				u32 (*first_li)(struct sock *sk),
-				struct sock *sk);
-extern u32 tfrc_rx_hist_sample_rtt(struct tfrc_rx_hist *h,
-				   const struct sk_buff *skb);
-extern int tfrc_rx_hist_alloc(struct tfrc_rx_hist *h);
-extern void tfrc_rx_hist_purge(struct tfrc_rx_hist *h);
+int tfrc_rx_handle_loss(struct tfrc_rx_hist *h, struct tfrc_loss_hist *lh,
+			struct sk_buff *skb, const u64 ndp,
+			u32 (*first_li)(struct sock *sk), struct sock *sk);
+u32 tfrc_rx_hist_sample_rtt(struct tfrc_rx_hist *h, const struct sk_buff *skb);
+int tfrc_rx_hist_alloc(struct tfrc_rx_hist *h);
+void tfrc_rx_hist_purge(struct tfrc_rx_hist *h);
 
 #endif /* _DCCP_PKT_HIST_ */
diff --git a/net/dccp/ccids/lib/tfrc.h b/net/dccp/ccids/lib/tfrc.h
index ed698c42a5fb..40ee7d62b652 100644
--- a/net/dccp/ccids/lib/tfrc.h
+++ b/net/dccp/ccids/lib/tfrc.h
@@ -55,21 +55,21 @@ static inline u32 tfrc_ewma(const u32 avg, const u32 newval, const u8 weight)
 	return avg ? (weight * avg + (10 - weight) * newval) / 10 : newval;
 }
 
-extern u32  tfrc_calc_x(u16 s, u32 R, u32 p);
-extern u32  tfrc_calc_x_reverse_lookup(u32 fvalue);
-extern u32  tfrc_invert_loss_event_rate(u32 loss_event_rate);
+u32 tfrc_calc_x(u16 s, u32 R, u32 p);
+u32 tfrc_calc_x_reverse_lookup(u32 fvalue);
+u32 tfrc_invert_loss_event_rate(u32 loss_event_rate);
 
-extern int  tfrc_tx_packet_history_init(void);
-extern void tfrc_tx_packet_history_exit(void);
-extern int  tfrc_rx_packet_history_init(void);
-extern void tfrc_rx_packet_history_exit(void);
+int tfrc_tx_packet_history_init(void);
+void tfrc_tx_packet_history_exit(void);
+int tfrc_rx_packet_history_init(void);
+void tfrc_rx_packet_history_exit(void);
 
-extern int  tfrc_li_init(void);
-extern void tfrc_li_exit(void);
+int tfrc_li_init(void);
+void tfrc_li_exit(void);
 
 #ifdef CONFIG_IP_DCCP_TFRC_LIB
-extern int  tfrc_lib_init(void);
-extern void tfrc_lib_exit(void);
+int tfrc_lib_init(void);
+void tfrc_lib_exit(void);
 #else
 #define tfrc_lib_init() (0)
 #define tfrc_lib_exit()
diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index 708e75bf623d..30948784dd58 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -53,7 +53,7 @@ extern struct inet_hashinfo dccp_hashinfo;
 
 extern struct percpu_counter dccp_orphan_count;
 
-extern void dccp_time_wait(struct sock *sk, int state, int timeo);
+void dccp_time_wait(struct sock *sk, int state, int timeo);
 
 /*
  *  Set safe upper bounds for header and option length. Since Data Offset is 8
@@ -224,114 +224,108 @@ static inline void dccp_csum_outgoing(struct sk_buff *skb)
 	skb->csum = skb_checksum(skb, 0, (cov > skb->len)? skb->len : cov, 0);
 }
 
-extern void dccp_v4_send_check(struct sock *sk, struct sk_buff *skb);
+void dccp_v4_send_check(struct sock *sk, struct sk_buff *skb);
 
-extern int  dccp_retransmit_skb(struct sock *sk);
+int dccp_retransmit_skb(struct sock *sk);
 
-extern void dccp_send_ack(struct sock *sk);
-extern void dccp_reqsk_send_ack(struct sock *sk, struct sk_buff *skb,
-				struct request_sock *rsk);
+void dccp_send_ack(struct sock *sk);
+void dccp_reqsk_send_ack(struct sock *sk, struct sk_buff *skb,
+			 struct request_sock *rsk);
 
-extern void dccp_send_sync(struct sock *sk, const u64 seq,
-			   const enum dccp_pkt_type pkt_type);
+void dccp_send_sync(struct sock *sk, const u64 seq,
+		    const enum dccp_pkt_type pkt_type);
 
 /*
  * TX Packet Dequeueing Interface
  */
-extern void		dccp_qpolicy_push(struct sock *sk, struct sk_buff *skb);
-extern bool		dccp_qpolicy_full(struct sock *sk);
-extern void		dccp_qpolicy_drop(struct sock *sk, struct sk_buff *skb);
-extern struct sk_buff	*dccp_qpolicy_top(struct sock *sk);
-extern struct sk_buff	*dccp_qpolicy_pop(struct sock *sk);
-extern bool		dccp_qpolicy_param_ok(struct sock *sk, __be32 param);
+void dccp_qpolicy_push(struct sock *sk, struct sk_buff *skb);
+bool dccp_qpolicy_full(struct sock *sk);
+void dccp_qpolicy_drop(struct sock *sk, struct sk_buff *skb);
+struct sk_buff *dccp_qpolicy_top(struct sock *sk);
+struct sk_buff *dccp_qpolicy_pop(struct sock *sk);
+bool dccp_qpolicy_param_ok(struct sock *sk, __be32 param);
 
 /*
  * TX Packet Output and TX Timers
  */
-extern void   dccp_write_xmit(struct sock *sk);
-extern void   dccp_write_space(struct sock *sk);
-extern void   dccp_flush_write_queue(struct sock *sk, long *time_budget);
+void dccp_write_xmit(struct sock *sk);
+void dccp_write_space(struct sock *sk);
+void dccp_flush_write_queue(struct sock *sk, long *time_budget);
 
-extern void dccp_init_xmit_timers(struct sock *sk);
+void dccp_init_xmit_timers(struct sock *sk);
 static inline void dccp_clear_xmit_timers(struct sock *sk)
 {
 	inet_csk_clear_xmit_timers(sk);
 }
 
-extern unsigned int dccp_sync_mss(struct sock *sk, u32 pmtu);
+unsigned int dccp_sync_mss(struct sock *sk, u32 pmtu);
 
-extern const char *dccp_packet_name(const int type);
+const char *dccp_packet_name(const int type);
 
-extern void dccp_set_state(struct sock *sk, const int state);
-extern void dccp_done(struct sock *sk);
+void dccp_set_state(struct sock *sk, const int state);
+void dccp_done(struct sock *sk);
 
-extern int  dccp_reqsk_init(struct request_sock *rq, struct dccp_sock const *dp,
-			    struct sk_buff const *skb);
+int dccp_reqsk_init(struct request_sock *rq, struct dccp_sock const *dp,
+		    struct sk_buff const *skb);
 
-extern int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb);
+int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb);
 
-extern struct sock *dccp_create_openreq_child(struct sock *sk,
-					      const struct request_sock *req,
-					      const struct sk_buff *skb);
+struct sock *dccp_create_openreq_child(struct sock *sk,
+				       const struct request_sock *req,
+				       const struct sk_buff *skb);
 
-extern int dccp_v4_do_rcv(struct sock *sk, struct sk_buff *skb);
+int dccp_v4_do_rcv(struct sock *sk, struct sk_buff *skb);
 
-extern struct sock *dccp_v4_request_recv_sock(struct sock *sk,
-					      struct sk_buff *skb,
-					      struct request_sock *req,
-					      struct dst_entry *dst);
-extern struct sock *dccp_check_req(struct sock *sk, struct sk_buff *skb,
-				   struct request_sock *req,
-				   struct request_sock **prev);
+struct sock *dccp_v4_request_recv_sock(struct sock *sk, struct sk_buff *skb,
+				       struct request_sock *req,
+				       struct dst_entry *dst);
+struct sock *dccp_check_req(struct sock *sk, struct sk_buff *skb,
+			    struct request_sock *req,
+			    struct request_sock **prev);
 
-extern int dccp_child_process(struct sock *parent, struct sock *child,
-			      struct sk_buff *skb);
-extern int dccp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
-				  struct dccp_hdr *dh, unsigned int len);
-extern int dccp_rcv_established(struct sock *sk, struct sk_buff *skb,
-				const struct dccp_hdr *dh, const unsigned int len);
+int dccp_child_process(struct sock *parent, struct sock *child,
+		       struct sk_buff *skb);
+int dccp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
+			   struct dccp_hdr *dh, unsigned int len);
+int dccp_rcv_established(struct sock *sk, struct sk_buff *skb,
+			 const struct dccp_hdr *dh, const unsigned int len);
 
-extern int dccp_init_sock(struct sock *sk, const __u8 ctl_sock_initialized);
-extern void dccp_destroy_sock(struct sock *sk);
+int dccp_init_sock(struct sock *sk, const __u8 ctl_sock_initialized);
+void dccp_destroy_sock(struct sock *sk);
 
-extern void		dccp_close(struct sock *sk, long timeout);
-extern struct sk_buff	*dccp_make_response(struct sock *sk,
-					    struct dst_entry *dst,
-					    struct request_sock *req);
+void dccp_close(struct sock *sk, long timeout);
+struct sk_buff *dccp_make_response(struct sock *sk, struct dst_entry *dst,
+				   struct request_sock *req);
 
-extern int	   dccp_connect(struct sock *sk);
-extern int	   dccp_disconnect(struct sock *sk, int flags);
-extern int	   dccp_getsockopt(struct sock *sk, int level, int optname,
-				   char __user *optval, int __user *optlen);
-extern int	   dccp_setsockopt(struct sock *sk, int level, int optname,
-				   char __user *optval, unsigned int optlen);
+int dccp_connect(struct sock *sk);
+int dccp_disconnect(struct sock *sk, int flags);
+int dccp_getsockopt(struct sock *sk, int level, int optname,
+		    char __user *optval, int __user *optlen);
+int dccp_setsockopt(struct sock *sk, int level, int optname,
+		    char __user *optval, unsigned int optlen);
 #ifdef CONFIG_COMPAT
-extern int	   compat_dccp_getsockopt(struct sock *sk,
-				int level, int optname,
-				char __user *optval, int __user *optlen);
-extern int	   compat_dccp_setsockopt(struct sock *sk,
-				int level, int optname,
-				char __user *optval, unsigned int optlen);
+int compat_dccp_getsockopt(struct sock *sk, int level, int optname,
+			   char __user *optval, int __user *optlen);
+int compat_dccp_setsockopt(struct sock *sk, int level, int optname,
+			   char __user *optval, unsigned int optlen);
 #endif
-extern int	   dccp_ioctl(struct sock *sk, int cmd, unsigned long arg);
-extern int	   dccp_sendmsg(struct kiocb *iocb, struct sock *sk,
-				struct msghdr *msg, size_t size);
-extern int	   dccp_recvmsg(struct kiocb *iocb, struct sock *sk,
-				struct msghdr *msg, size_t len, int nonblock,
-				int flags, int *addr_len);
-extern void	   dccp_shutdown(struct sock *sk, int how);
-extern int	   inet_dccp_listen(struct socket *sock, int backlog);
-extern unsigned int dccp_poll(struct file *file, struct socket *sock,
-			     poll_table *wait);
-extern int	   dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr,
-				   int addr_len);
-
-extern struct sk_buff *dccp_ctl_make_reset(struct sock *sk,
-					   struct sk_buff *skb);
-extern int	   dccp_send_reset(struct sock *sk, enum dccp_reset_codes code);
-extern void	   dccp_send_close(struct sock *sk, const int active);
-extern int	   dccp_invalid_packet(struct sk_buff *skb);
-extern u32	   dccp_sample_rtt(struct sock *sk, long delta);
+int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg);
+int dccp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+		 size_t size);
+int dccp_recvmsg(struct kiocb *iocb, struct sock *sk,
+		 struct msghdr *msg, size_t len, int nonblock, int flags,
+		 int *addr_len);
+void dccp_shutdown(struct sock *sk, int how);
+int inet_dccp_listen(struct socket *sock, int backlog);
+unsigned int dccp_poll(struct file *file, struct socket *sock,
+		       poll_table *wait);
+int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len);
+
+struct sk_buff *dccp_ctl_make_reset(struct sock *sk, struct sk_buff *skb);
+int dccp_send_reset(struct sock *sk, enum dccp_reset_codes code);
+void dccp_send_close(struct sock *sk, const int active);
+int dccp_invalid_packet(struct sk_buff *skb);
+u32 dccp_sample_rtt(struct sock *sk, long delta);
 
 static inline int dccp_bad_service_code(const struct sock *sk,
 					const __be32 service)
@@ -475,25 +469,25 @@ static inline int dccp_ack_pending(const struct sock *sk)
 	return dccp_ackvec_pending(sk) || inet_csk_ack_scheduled(sk);
 }
 
-extern int  dccp_feat_signal_nn_change(struct sock *sk, u8 feat, u64 nn_val);
-extern int  dccp_feat_finalise_settings(struct dccp_sock *dp);
-extern int  dccp_feat_server_ccid_dependencies(struct dccp_request_sock *dreq);
-extern int  dccp_feat_insert_opts(struct dccp_sock*, struct dccp_request_sock*,
-				  struct sk_buff *skb);
-extern int  dccp_feat_activate_values(struct sock *sk, struct list_head *fn);
-extern void dccp_feat_list_purge(struct list_head *fn_list);
-
-extern int dccp_insert_options(struct sock *sk, struct sk_buff *skb);
-extern int dccp_insert_options_rsk(struct dccp_request_sock*, struct sk_buff*);
-extern int dccp_insert_option_elapsed_time(struct sk_buff *skb, u32 elapsed);
-extern u32 dccp_timestamp(void);
-extern void dccp_timestamping_init(void);
-extern int dccp_insert_option(struct sk_buff *skb, unsigned char option,
-			      const void *value, unsigned char len);
+int dccp_feat_signal_nn_change(struct sock *sk, u8 feat, u64 nn_val);
+int dccp_feat_finalise_settings(struct dccp_sock *dp);
+int dccp_feat_server_ccid_dependencies(struct dccp_request_sock *dreq);
+int dccp_feat_insert_opts(struct dccp_sock*, struct dccp_request_sock*,
+			  struct sk_buff *skb);
+int dccp_feat_activate_values(struct sock *sk, struct list_head *fn);
+void dccp_feat_list_purge(struct list_head *fn_list);
+
+int dccp_insert_options(struct sock *sk, struct sk_buff *skb);
+int dccp_insert_options_rsk(struct dccp_request_sock *, struct sk_buff *);
+int dccp_insert_option_elapsed_time(struct sk_buff *skb, u32 elapsed);
+u32 dccp_timestamp(void);
+void dccp_timestamping_init(void);
+int dccp_insert_option(struct sk_buff *skb, unsigned char option,
+		       const void *value, unsigned char len);
 
 #ifdef CONFIG_SYSCTL
-extern int dccp_sysctl_init(void);
-extern void dccp_sysctl_exit(void);
+int dccp_sysctl_init(void);
+void dccp_sysctl_exit(void);
 #else
 static inline int dccp_sysctl_init(void)
 {
diff --git a/net/dccp/feat.h b/net/dccp/feat.h
index 90b957d34d26..0e75cebb2187 100644
--- a/net/dccp/feat.h
+++ b/net/dccp/feat.h
@@ -107,13 +107,13 @@ extern unsigned long sysctl_dccp_sequence_window;
 extern int	     sysctl_dccp_rx_ccid;
 extern int	     sysctl_dccp_tx_ccid;
 
-extern int  dccp_feat_init(struct sock *sk);
-extern void dccp_feat_initialise_sysctls(void);
-extern int  dccp_feat_register_sp(struct sock *sk, u8 feat, u8 is_local,
-				  u8 const *list, u8 len);
-extern int  dccp_feat_parse_options(struct sock *, struct dccp_request_sock *,
-				    u8 mand, u8 opt, u8 feat, u8 *val, u8 len);
-extern int  dccp_feat_clone_list(struct list_head const *, struct list_head *);
+int dccp_feat_init(struct sock *sk);
+void dccp_feat_initialise_sysctls(void);
+int dccp_feat_register_sp(struct sock *sk, u8 feat, u8 is_local,
+			  u8 const *list, u8 len);
+int dccp_feat_parse_options(struct sock *, struct dccp_request_sock *,
+			    u8 mand, u8 opt, u8 feat, u8 *val, u8 len);
+int dccp_feat_clone_list(struct list_head const *, struct list_head *);
 
 /*
  * Encoding variable-length options and their maximum length.
@@ -127,11 +127,11 @@ extern int  dccp_feat_clone_list(struct list_head const *, struct list_head *);
  */
 #define DCCP_OPTVAL_MAXLEN	6
 
-extern void dccp_encode_value_var(const u64 value, u8 *to, const u8 len);
-extern u64  dccp_decode_value_var(const u8 *bf, const u8 len);
-extern u64  dccp_feat_nn_get(struct sock *sk, u8 feat);
+void dccp_encode_value_var(const u64 value, u8 *to, const u8 len);
+u64 dccp_decode_value_var(const u8 *bf, const u8 len);
+u64 dccp_feat_nn_get(struct sock *sk, u8 feat);
 
-extern int  dccp_insert_option_mandatory(struct sk_buff *skb);
-extern int  dccp_insert_fn_opt(struct sk_buff *skb, u8 type, u8 feat,
-			       u8 *val, u8 len, bool repeat_first);
+int dccp_insert_option_mandatory(struct sk_buff *skb);
+int dccp_insert_fn_opt(struct sk_buff *skb, u8 type, u8 feat, u8 *val, u8 len,
+		       bool repeat_first);
 #endif /* _DCCP_FEAT_H */
-- 
cgit 


From 7e58487b8cf5871d2a0fa03892dbd4b3a620d07f Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 18 Oct 2013 13:48:24 -0700
Subject: net: ipv4/ipv6: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/fib_lookup.h | 26 +++++++++++---------------
 net/ipv4/tcp_vegas.h  | 10 +++++-----
 net/ipv4/udp_impl.h   | 36 ++++++++++++++++++------------------
 net/ipv6/udp_impl.h   | 41 ++++++++++++++++++++---------------------
 4 files changed, 54 insertions(+), 59 deletions(-)

diff --git a/net/ipv4/fib_lookup.h b/net/ipv4/fib_lookup.h
index 50cfb3ef560f..388d113fd289 100644
--- a/net/ipv4/fib_lookup.h
+++ b/net/ipv4/fib_lookup.h
@@ -24,21 +24,17 @@ static inline void fib_alias_accessed(struct fib_alias *fa)
 }
 
 /* Exported by fib_semantics.c */
-extern void fib_release_info(struct fib_info *);
-extern struct fib_info *fib_create_info(struct fib_config *cfg);
-extern int fib_nh_match(struct fib_config *cfg, struct fib_info *fi);
-extern int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event,
-			 u32 tb_id, u8 type, __be32 dst,
-			 int dst_len, u8 tos, struct fib_info *fi,
-			 unsigned int);
-extern void rtmsg_fib(int event, __be32 key, struct fib_alias *fa,
-		      int dst_len, u32 tb_id, const struct nl_info *info,
-		      unsigned int nlm_flags);
-extern struct fib_alias *fib_find_alias(struct list_head *fah,
-					u8 tos, u32 prio);
-extern int fib_detect_death(struct fib_info *fi, int order,
-			    struct fib_info **last_resort,
-			    int *last_idx, int dflt);
+void fib_release_info(struct fib_info *);
+struct fib_info *fib_create_info(struct fib_config *cfg);
+int fib_nh_match(struct fib_config *cfg, struct fib_info *fi);
+int fib_dump_info(struct sk_buff *skb, u32 pid, u32 seq, int event, u32 tb_id,
+		  u8 type, __be32 dst, int dst_len, u8 tos, struct fib_info *fi,
+		  unsigned int);
+void rtmsg_fib(int event, __be32 key, struct fib_alias *fa, int dst_len,
+	       u32 tb_id, const struct nl_info *info, unsigned int nlm_flags);
+struct fib_alias *fib_find_alias(struct list_head *fah, u8 tos, u32 prio);
+int fib_detect_death(struct fib_info *fi, int order,
+		     struct fib_info **last_resort, int *last_idx, int dflt);
 
 static inline void fib_result_assign(struct fib_result *res,
 				     struct fib_info *fi)
diff --git a/net/ipv4/tcp_vegas.h b/net/ipv4/tcp_vegas.h
index 6c0eea2f8249..0531b99d8637 100644
--- a/net/ipv4/tcp_vegas.h
+++ b/net/ipv4/tcp_vegas.h
@@ -15,10 +15,10 @@ struct vegas {
 	u32	baseRTT;	/* the min of all Vegas RTT measurements seen (in usec) */
 };
 
-extern void tcp_vegas_init(struct sock *sk);
-extern void tcp_vegas_state(struct sock *sk, u8 ca_state);
-extern void tcp_vegas_pkts_acked(struct sock *sk, u32 cnt, s32 rtt_us);
-extern void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event);
-extern void tcp_vegas_get_info(struct sock *sk, u32 ext, struct sk_buff *skb);
+void tcp_vegas_init(struct sock *sk);
+void tcp_vegas_state(struct sock *sk, u8 ca_state);
+void tcp_vegas_pkts_acked(struct sock *sk, u32 cnt, s32 rtt_us);
+void tcp_vegas_cwnd_event(struct sock *sk, enum tcp_ca_event event);
+void tcp_vegas_get_info(struct sock *sk, u32 ext, struct sk_buff *skb);
 
 #endif	/* __TCP_VEGAS_H */
diff --git a/net/ipv4/udp_impl.h b/net/ipv4/udp_impl.h
index 5a681e298b90..f3c27899f62b 100644
--- a/net/ipv4/udp_impl.h
+++ b/net/ipv4/udp_impl.h
@@ -5,30 +5,30 @@
 #include <net/protocol.h>
 #include <net/inet_common.h>
 
-extern int  	__udp4_lib_rcv(struct sk_buff *, struct udp_table *, int );
-extern void 	__udp4_lib_err(struct sk_buff *, u32, struct udp_table *);
+int __udp4_lib_rcv(struct sk_buff *, struct udp_table *, int);
+void __udp4_lib_err(struct sk_buff *, u32, struct udp_table *);
 
-extern int	udp_v4_get_port(struct sock *sk, unsigned short snum);
+int udp_v4_get_port(struct sock *sk, unsigned short snum);
 
-extern int	udp_setsockopt(struct sock *sk, int level, int optname,
-			       char __user *optval, unsigned int optlen);
-extern int	udp_getsockopt(struct sock *sk, int level, int optname,
-			       char __user *optval, int __user *optlen);
+int udp_setsockopt(struct sock *sk, int level, int optname,
+		   char __user *optval, unsigned int optlen);
+int udp_getsockopt(struct sock *sk, int level, int optname,
+		   char __user *optval, int __user *optlen);
 
 #ifdef CONFIG_COMPAT
-extern int	compat_udp_setsockopt(struct sock *sk, int level, int optname,
-				      char __user *optval, unsigned int optlen);
-extern int	compat_udp_getsockopt(struct sock *sk, int level, int optname,
-				      char __user *optval, int __user *optlen);
+int compat_udp_setsockopt(struct sock *sk, int level, int optname,
+			  char __user *optval, unsigned int optlen);
+int compat_udp_getsockopt(struct sock *sk, int level, int optname,
+			  char __user *optval, int __user *optlen);
 #endif
-extern int	udp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
-			    size_t len, int noblock, int flags, int *addr_len);
-extern int	udp_sendpage(struct sock *sk, struct page *page, int offset,
-			     size_t size, int flags);
-extern int	udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);
-extern void	udp_destroy_sock(struct sock *sk);
+int udp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+		size_t len, int noblock, int flags, int *addr_len);
+int udp_sendpage(struct sock *sk, struct page *page, int offset, size_t size,
+		 int flags);
+int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);
+void udp_destroy_sock(struct sock *sk);
 
 #ifdef CONFIG_PROC_FS
-extern int	udp4_seq_show(struct seq_file *seq, void *v);
+int udp4_seq_show(struct seq_file *seq, void *v);
 #endif
 #endif	/* _UDP4_IMPL_H */
diff --git a/net/ipv6/udp_impl.h b/net/ipv6/udp_impl.h
index 4691ed50a928..c779c3c90b9d 100644
--- a/net/ipv6/udp_impl.h
+++ b/net/ipv6/udp_impl.h
@@ -7,33 +7,32 @@
 #include <net/inet_common.h>
 #include <net/transp_v6.h>
 
-extern int  	__udp6_lib_rcv(struct sk_buff *, struct udp_table *, int );
-extern void 	__udp6_lib_err(struct sk_buff *, struct inet6_skb_parm *,
-			       u8 , u8 , int , __be32 , struct udp_table *);
+int __udp6_lib_rcv(struct sk_buff *, struct udp_table *, int);
+void __udp6_lib_err(struct sk_buff *, struct inet6_skb_parm *, u8, u8, int,
+		    __be32, struct udp_table *);
 
-extern int	udp_v6_get_port(struct sock *sk, unsigned short snum);
+int udp_v6_get_port(struct sock *sk, unsigned short snum);
 
-extern int	udpv6_getsockopt(struct sock *sk, int level, int optname,
-				 char __user *optval, int __user *optlen);
-extern int	udpv6_setsockopt(struct sock *sk, int level, int optname,
-				 char __user *optval, unsigned int optlen);
+int udpv6_getsockopt(struct sock *sk, int level, int optname,
+		     char __user *optval, int __user *optlen);
+int udpv6_setsockopt(struct sock *sk, int level, int optname,
+		     char __user *optval, unsigned int optlen);
 #ifdef CONFIG_COMPAT
-extern int	compat_udpv6_setsockopt(struct sock *sk, int level, int optname,
-					char __user *optval, unsigned int optlen);
-extern int	compat_udpv6_getsockopt(struct sock *sk, int level, int optname,
-				       char __user *optval, int __user *optlen);
+int compat_udpv6_setsockopt(struct sock *sk, int level, int optname,
+			    char __user *optval, unsigned int optlen);
+int compat_udpv6_getsockopt(struct sock *sk, int level, int optname,
+			    char __user *optval, int __user *optlen);
 #endif
-extern int	udpv6_sendmsg(struct kiocb *iocb, struct sock *sk,
-			      struct msghdr *msg, size_t len);
-extern int	udpv6_recvmsg(struct kiocb *iocb, struct sock *sk,
-			      struct msghdr *msg, size_t len,
-			      int noblock, int flags, int *addr_len);
-extern int	udpv6_queue_rcv_skb(struct sock * sk, struct sk_buff *skb);
-extern void	udpv6_destroy_sock(struct sock *sk);
+int udpv6_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+		  size_t len);
+int udpv6_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
+		  size_t len, int noblock, int flags, int *addr_len);
+int udpv6_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);
+void udpv6_destroy_sock(struct sock *sk);
 
-extern void udp_v6_clear_sk(struct sock *sk, int size);
+void udp_v6_clear_sk(struct sock *sk, int size);
 
 #ifdef CONFIG_PROC_FS
-extern int	udp6_seq_show(struct seq_file *seq, void *v);
+int udp6_seq_show(struct seq_file *seq, void *v);
 #endif
 #endif	/* _UDP6_IMPL_H */
-- 
cgit 


From c1b1203d65955c179fec617ff17a21273f33a414 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 18 Oct 2013 13:48:25 -0700
Subject: net: misc: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/irda/irnet/irnet.h       |  15 ++---
 net/l2tp/l2tp_core.h         |  57 +++++++++-------
 net/mac80211/rate.h          |  12 ++--
 net/netfilter/nf_internals.h |  28 ++++----
 net/rds/rds.h                |   2 +-
 net/rxrpc/ar-internal.h      | 150 ++++++++++++++++++++-----------------------
 net/tipc/core.h              |  28 ++++----
 net/wimax/wimax-internal.h   |  18 +++---
 net/wireless/core.h          |   6 +-
 net/wireless/sysfs.h         |   4 +-
 net/xfrm/xfrm_hash.h         |   4 +-
 11 files changed, 157 insertions(+), 167 deletions(-)

diff --git a/net/irda/irnet/irnet.h b/net/irda/irnet/irnet.h
index 564eb0b8afa3..8d65bb9477fc 100644
--- a/net/irda/irnet/irnet.h
+++ b/net/irda/irnet/irnet.h
@@ -509,16 +509,11 @@ typedef struct irnet_ctrl_channel
  */
 
 /* -------------------------- IRDA PART -------------------------- */
-extern int
-	irda_irnet_create(irnet_socket *);	/* Initialise a IrNET socket */
-extern int
-	irda_irnet_connect(irnet_socket *);	/* Try to connect over IrDA */
-extern void
-	irda_irnet_destroy(irnet_socket *);	/* Teardown  a IrNET socket */
-extern int
-	irda_irnet_init(void);		/* Initialise IrDA part of IrNET */
-extern void
-	irda_irnet_cleanup(void);	/* Teardown IrDA part of IrNET */
+int irda_irnet_create(irnet_socket *);	/* Initialise an IrNET socket */
+int irda_irnet_connect(irnet_socket *);	/* Try to connect over IrDA */
+void irda_irnet_destroy(irnet_socket *);	/* Teardown an IrNET socket */
+int irda_irnet_init(void);		/* Initialise IrDA part of IrNET */
+void irda_irnet_cleanup(void);		/* Teardown IrDA part of IrNET */
 
 /**************************** VARIABLES ****************************/
 
diff --git a/net/l2tp/l2tp_core.h b/net/l2tp/l2tp_core.h
index 6f251cbc2ed7..1ee9f6965d68 100644
--- a/net/l2tp/l2tp_core.h
+++ b/net/l2tp/l2tp_core.h
@@ -238,29 +238,40 @@ out:
 	return tunnel;
 }
 
-extern struct sock *l2tp_tunnel_sock_lookup(struct l2tp_tunnel *tunnel);
-extern void l2tp_tunnel_sock_put(struct sock *sk);
-extern struct l2tp_session *l2tp_session_find(struct net *net, struct l2tp_tunnel *tunnel, u32 session_id);
-extern struct l2tp_session *l2tp_session_find_nth(struct l2tp_tunnel *tunnel, int nth);
-extern struct l2tp_session *l2tp_session_find_by_ifname(struct net *net, char *ifname);
-extern struct l2tp_tunnel *l2tp_tunnel_find(struct net *net, u32 tunnel_id);
-extern struct l2tp_tunnel *l2tp_tunnel_find_nth(struct net *net, int nth);
-
-extern int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id, u32 peer_tunnel_id, struct l2tp_tunnel_cfg *cfg, struct l2tp_tunnel **tunnelp);
-extern void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel);
-extern int l2tp_tunnel_delete(struct l2tp_tunnel *tunnel);
-extern struct l2tp_session *l2tp_session_create(int priv_size, struct l2tp_tunnel *tunnel, u32 session_id, u32 peer_session_id, struct l2tp_session_cfg *cfg);
-extern void __l2tp_session_unhash(struct l2tp_session *session);
-extern int l2tp_session_delete(struct l2tp_session *session);
-extern void l2tp_session_free(struct l2tp_session *session);
-extern void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb, unsigned char *ptr, unsigned char *optr, u16 hdrflags, int length, int (*payload_hook)(struct sk_buff *skb));
-extern int l2tp_session_queue_purge(struct l2tp_session *session);
-extern int l2tp_udp_encap_recv(struct sock *sk, struct sk_buff *skb);
-
-extern int l2tp_xmit_skb(struct l2tp_session *session, struct sk_buff *skb, int hdr_len);
-
-extern int l2tp_nl_register_ops(enum l2tp_pwtype pw_type, const struct l2tp_nl_cmd_ops *ops);
-extern void l2tp_nl_unregister_ops(enum l2tp_pwtype pw_type);
+struct sock *l2tp_tunnel_sock_lookup(struct l2tp_tunnel *tunnel);
+void l2tp_tunnel_sock_put(struct sock *sk);
+struct l2tp_session *l2tp_session_find(struct net *net,
+				       struct l2tp_tunnel *tunnel,
+				       u32 session_id);
+struct l2tp_session *l2tp_session_find_nth(struct l2tp_tunnel *tunnel, int nth);
+struct l2tp_session *l2tp_session_find_by_ifname(struct net *net, char *ifname);
+struct l2tp_tunnel *l2tp_tunnel_find(struct net *net, u32 tunnel_id);
+struct l2tp_tunnel *l2tp_tunnel_find_nth(struct net *net, int nth);
+
+int l2tp_tunnel_create(struct net *net, int fd, int version, u32 tunnel_id,
+		       u32 peer_tunnel_id, struct l2tp_tunnel_cfg *cfg,
+		       struct l2tp_tunnel **tunnelp);
+void l2tp_tunnel_closeall(struct l2tp_tunnel *tunnel);
+int l2tp_tunnel_delete(struct l2tp_tunnel *tunnel);
+struct l2tp_session *l2tp_session_create(int priv_size,
+					 struct l2tp_tunnel *tunnel,
+					 u32 session_id, u32 peer_session_id,
+					 struct l2tp_session_cfg *cfg);
+void __l2tp_session_unhash(struct l2tp_session *session);
+int l2tp_session_delete(struct l2tp_session *session);
+void l2tp_session_free(struct l2tp_session *session);
+void l2tp_recv_common(struct l2tp_session *session, struct sk_buff *skb,
+		      unsigned char *ptr, unsigned char *optr, u16 hdrflags,
+		      int length, int (*payload_hook)(struct sk_buff *skb));
+int l2tp_session_queue_purge(struct l2tp_session *session);
+int l2tp_udp_encap_recv(struct sock *sk, struct sk_buff *skb);
+
+int l2tp_xmit_skb(struct l2tp_session *session, struct sk_buff *skb,
+		  int hdr_len);
+
+int l2tp_nl_register_ops(enum l2tp_pwtype pw_type,
+			 const struct l2tp_nl_cmd_ops *ops);
+void l2tp_nl_unregister_ops(enum l2tp_pwtype pw_type);
 
 /* Session reference counts. Incremented when code obtains a reference
  * to a session.
diff --git a/net/mac80211/rate.h b/net/mac80211/rate.h
index 5dedc56c94db..505bc0dea074 100644
--- a/net/mac80211/rate.h
+++ b/net/mac80211/rate.h
@@ -144,8 +144,8 @@ void rate_control_deinitialize(struct ieee80211_local *local);
 
 /* Rate control algorithms */
 #ifdef CONFIG_MAC80211_RC_PID
-extern int rc80211_pid_init(void);
-extern void rc80211_pid_exit(void);
+int rc80211_pid_init(void);
+void rc80211_pid_exit(void);
 #else
 static inline int rc80211_pid_init(void)
 {
@@ -157,8 +157,8 @@ static inline void rc80211_pid_exit(void)
 #endif
 
 #ifdef CONFIG_MAC80211_RC_MINSTREL
-extern int rc80211_minstrel_init(void);
-extern void rc80211_minstrel_exit(void);
+int rc80211_minstrel_init(void);
+void rc80211_minstrel_exit(void);
 #else
 static inline int rc80211_minstrel_init(void)
 {
@@ -170,8 +170,8 @@ static inline void rc80211_minstrel_exit(void)
 #endif
 
 #ifdef CONFIG_MAC80211_RC_MINSTREL_HT
-extern int rc80211_minstrel_ht_init(void);
-extern void rc80211_minstrel_ht_exit(void);
+int rc80211_minstrel_ht_init(void);
+void rc80211_minstrel_ht_exit(void);
 #else
 static inline int rc80211_minstrel_ht_init(void)
 {
diff --git a/net/netfilter/nf_internals.h b/net/netfilter/nf_internals.h
index 3deec997be89..61a3c927e63c 100644
--- a/net/netfilter/nf_internals.h
+++ b/net/netfilter/nf_internals.h
@@ -13,26 +13,20 @@
 
 
 /* core.c */
-extern unsigned int nf_iterate(struct list_head *head,
-				struct sk_buff *skb,
-				unsigned int hook,
-				const struct net_device *indev,
-				const struct net_device *outdev,
-				struct nf_hook_ops **elemp,
-				int (*okfn)(struct sk_buff *),
-				int hook_thresh);
+unsigned int nf_iterate(struct list_head *head, struct sk_buff *skb,
+			unsigned int hook, const struct net_device *indev,
+			const struct net_device *outdev,
+			struct nf_hook_ops **elemp,
+			int (*okfn)(struct sk_buff *), int hook_thresh);
 
 /* nf_queue.c */
-extern int nf_queue(struct sk_buff *skb,
-		    struct nf_hook_ops *elem,
-		    u_int8_t pf, unsigned int hook,
-		    struct net_device *indev,
-		    struct net_device *outdev,
-		    int (*okfn)(struct sk_buff *),
-		    unsigned int queuenum);
-extern int __init netfilter_queue_init(void);
+int nf_queue(struct sk_buff *skb, struct nf_hook_ops *elem, u_int8_t pf,
+	     unsigned int hook, struct net_device *indev,
+	     struct net_device *outdev, int (*okfn)(struct sk_buff *),
+	     unsigned int queuenum);
+int __init netfilter_queue_init(void);
 
 /* nf_log.c */
-extern int __init netfilter_log_init(void);
+int __init netfilter_log_init(void);
 
 #endif
diff --git a/net/rds/rds.h b/net/rds/rds.h
index ec1d731ecff0..48f8ffc60f8f 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -749,7 +749,7 @@ void rds_atomic_send_complete(struct rds_message *rm, int wc_status);
 int rds_cmsg_atomic(struct rds_sock *rs, struct rds_message *rm,
 		    struct cmsghdr *cmsg);
 
-extern void __rds_put_mr_final(struct rds_mr *mr);
+void __rds_put_mr_final(struct rds_mr *mr);
 static inline void rds_mr_put(struct rds_mr *mr)
 {
 	if (atomic_dec_and_test(&mr->r_refcount))
diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h
index a693aca2ae2e..5f43675ee1df 100644
--- a/net/rxrpc/ar-internal.h
+++ b/net/rxrpc/ar-internal.h
@@ -426,17 +426,16 @@ extern struct workqueue_struct *rxrpc_workqueue;
 /*
  * ar-accept.c
  */
-extern void rxrpc_accept_incoming_calls(struct work_struct *);
-extern struct rxrpc_call *rxrpc_accept_call(struct rxrpc_sock *,
-					    unsigned long);
-extern int rxrpc_reject_call(struct rxrpc_sock *);
+void rxrpc_accept_incoming_calls(struct work_struct *);
+struct rxrpc_call *rxrpc_accept_call(struct rxrpc_sock *, unsigned long);
+int rxrpc_reject_call(struct rxrpc_sock *);
 
 /*
  * ar-ack.c
  */
-extern void __rxrpc_propose_ACK(struct rxrpc_call *, u8, __be32, bool);
-extern void rxrpc_propose_ACK(struct rxrpc_call *, u8, __be32, bool);
-extern void rxrpc_process_call(struct work_struct *);
+void __rxrpc_propose_ACK(struct rxrpc_call *, u8, __be32, bool);
+void rxrpc_propose_ACK(struct rxrpc_call *, u8, __be32, bool);
+void rxrpc_process_call(struct work_struct *);
 
 /*
  * ar-call.c
@@ -445,19 +444,18 @@ extern struct kmem_cache *rxrpc_call_jar;
 extern struct list_head rxrpc_calls;
 extern rwlock_t rxrpc_call_lock;
 
-extern struct rxrpc_call *rxrpc_get_client_call(struct rxrpc_sock *,
-						struct rxrpc_transport *,
-						struct rxrpc_conn_bundle *,
-						unsigned long, int, gfp_t);
-extern struct rxrpc_call *rxrpc_incoming_call(struct rxrpc_sock *,
-					      struct rxrpc_connection *,
-					      struct rxrpc_header *, gfp_t);
-extern struct rxrpc_call *rxrpc_find_server_call(struct rxrpc_sock *,
-						 unsigned long);
-extern void rxrpc_release_call(struct rxrpc_call *);
-extern void rxrpc_release_calls_on_socket(struct rxrpc_sock *);
-extern void __rxrpc_put_call(struct rxrpc_call *);
-extern void __exit rxrpc_destroy_all_calls(void);
+struct rxrpc_call *rxrpc_get_client_call(struct rxrpc_sock *,
+					 struct rxrpc_transport *,
+					 struct rxrpc_conn_bundle *,
+					 unsigned long, int, gfp_t);
+struct rxrpc_call *rxrpc_incoming_call(struct rxrpc_sock *,
+				       struct rxrpc_connection *,
+				       struct rxrpc_header *, gfp_t);
+struct rxrpc_call *rxrpc_find_server_call(struct rxrpc_sock *, unsigned long);
+void rxrpc_release_call(struct rxrpc_call *);
+void rxrpc_release_calls_on_socket(struct rxrpc_sock *);
+void __rxrpc_put_call(struct rxrpc_call *);
+void __exit rxrpc_destroy_all_calls(void);
 
 /*
  * ar-connection.c
@@ -465,19 +463,16 @@ extern void __exit rxrpc_destroy_all_calls(void);
 extern struct list_head rxrpc_connections;
 extern rwlock_t rxrpc_connection_lock;
 
-extern struct rxrpc_conn_bundle *rxrpc_get_bundle(struct rxrpc_sock *,
-						  struct rxrpc_transport *,
-						  struct key *,
-						  __be16, gfp_t);
-extern void rxrpc_put_bundle(struct rxrpc_transport *,
-			     struct rxrpc_conn_bundle *);
-extern int rxrpc_connect_call(struct rxrpc_sock *, struct rxrpc_transport *,
-			      struct rxrpc_conn_bundle *, struct rxrpc_call *,
-			      gfp_t);
-extern void rxrpc_put_connection(struct rxrpc_connection *);
-extern void __exit rxrpc_destroy_all_connections(void);
-extern struct rxrpc_connection *rxrpc_find_connection(struct rxrpc_transport *,
-						      struct rxrpc_header *);
+struct rxrpc_conn_bundle *rxrpc_get_bundle(struct rxrpc_sock *,
+					   struct rxrpc_transport *,
+					   struct key *, __be16, gfp_t);
+void rxrpc_put_bundle(struct rxrpc_transport *, struct rxrpc_conn_bundle *);
+int rxrpc_connect_call(struct rxrpc_sock *, struct rxrpc_transport *,
+		       struct rxrpc_conn_bundle *, struct rxrpc_call *, gfp_t);
+void rxrpc_put_connection(struct rxrpc_connection *);
+void __exit rxrpc_destroy_all_connections(void);
+struct rxrpc_connection *rxrpc_find_connection(struct rxrpc_transport *,
+					       struct rxrpc_header *);
 extern struct rxrpc_connection *
 rxrpc_incoming_connection(struct rxrpc_transport *, struct rxrpc_header *,
 			  gfp_t);
@@ -485,15 +480,15 @@ rxrpc_incoming_connection(struct rxrpc_transport *, struct rxrpc_header *,
 /*
  * ar-connevent.c
  */
-extern void rxrpc_process_connection(struct work_struct *);
-extern void rxrpc_reject_packet(struct rxrpc_local *, struct sk_buff *);
-extern void rxrpc_reject_packets(struct work_struct *);
+void rxrpc_process_connection(struct work_struct *);
+void rxrpc_reject_packet(struct rxrpc_local *, struct sk_buff *);
+void rxrpc_reject_packets(struct work_struct *);
 
 /*
  * ar-error.c
  */
-extern void rxrpc_UDP_error_report(struct sock *);
-extern void rxrpc_UDP_error_handler(struct work_struct *);
+void rxrpc_UDP_error_report(struct sock *);
+void rxrpc_UDP_error_handler(struct work_struct *);
 
 /*
  * ar-input.c
@@ -501,18 +496,17 @@ extern void rxrpc_UDP_error_handler(struct work_struct *);
 extern unsigned long rxrpc_ack_timeout;
 extern const char *rxrpc_pkts[];
 
-extern void rxrpc_data_ready(struct sock *, int);
-extern int rxrpc_queue_rcv_skb(struct rxrpc_call *, struct sk_buff *, bool,
-			       bool);
-extern void rxrpc_fast_process_packet(struct rxrpc_call *, struct sk_buff *);
+void rxrpc_data_ready(struct sock *, int);
+int rxrpc_queue_rcv_skb(struct rxrpc_call *, struct sk_buff *, bool, bool);
+void rxrpc_fast_process_packet(struct rxrpc_call *, struct sk_buff *);
 
 /*
  * ar-local.c
  */
 extern rwlock_t rxrpc_local_lock;
-extern struct rxrpc_local *rxrpc_lookup_local(struct sockaddr_rxrpc *);
-extern void rxrpc_put_local(struct rxrpc_local *);
-extern void __exit rxrpc_destroy_all_locals(void);
+struct rxrpc_local *rxrpc_lookup_local(struct sockaddr_rxrpc *);
+void rxrpc_put_local(struct rxrpc_local *);
+void __exit rxrpc_destroy_all_locals(void);
 
 /*
  * ar-key.c
@@ -520,31 +514,29 @@ extern void __exit rxrpc_destroy_all_locals(void);
 extern struct key_type key_type_rxrpc;
 extern struct key_type key_type_rxrpc_s;
 
-extern int rxrpc_request_key(struct rxrpc_sock *, char __user *, int);
-extern int rxrpc_server_keyring(struct rxrpc_sock *, char __user *, int);
-extern int rxrpc_get_server_data_key(struct rxrpc_connection *, const void *,
-				     time_t, u32);
+int rxrpc_request_key(struct rxrpc_sock *, char __user *, int);
+int rxrpc_server_keyring(struct rxrpc_sock *, char __user *, int);
+int rxrpc_get_server_data_key(struct rxrpc_connection *, const void *, time_t,
+			      u32);
 
 /*
  * ar-output.c
  */
 extern int rxrpc_resend_timeout;
 
-extern int rxrpc_send_packet(struct rxrpc_transport *, struct sk_buff *);
-extern int rxrpc_client_sendmsg(struct kiocb *, struct rxrpc_sock *,
-				struct rxrpc_transport *, struct msghdr *,
-				size_t);
-extern int rxrpc_server_sendmsg(struct kiocb *, struct rxrpc_sock *,
-				struct msghdr *, size_t);
+int rxrpc_send_packet(struct rxrpc_transport *, struct sk_buff *);
+int rxrpc_client_sendmsg(struct kiocb *, struct rxrpc_sock *,
+			 struct rxrpc_transport *, struct msghdr *, size_t);
+int rxrpc_server_sendmsg(struct kiocb *, struct rxrpc_sock *, struct msghdr *,
+			 size_t);
 
 /*
  * ar-peer.c
  */
-extern struct rxrpc_peer *rxrpc_get_peer(struct sockaddr_rxrpc *, gfp_t);
-extern void rxrpc_put_peer(struct rxrpc_peer *);
-extern struct rxrpc_peer *rxrpc_find_peer(struct rxrpc_local *,
-					  __be32, __be16);
-extern void __exit rxrpc_destroy_all_peers(void);
+struct rxrpc_peer *rxrpc_get_peer(struct sockaddr_rxrpc *, gfp_t);
+void rxrpc_put_peer(struct rxrpc_peer *);
+struct rxrpc_peer *rxrpc_find_peer(struct rxrpc_local *, __be32, __be16);
+void __exit rxrpc_destroy_all_peers(void);
 
 /*
  * ar-proc.c
@@ -556,38 +548,36 @@ extern const struct file_operations rxrpc_connection_seq_fops;
 /*
  * ar-recvmsg.c
  */
-extern void rxrpc_remove_user_ID(struct rxrpc_sock *, struct rxrpc_call *);
-extern int rxrpc_recvmsg(struct kiocb *, struct socket *, struct msghdr *,
-			 size_t, int);
+void rxrpc_remove_user_ID(struct rxrpc_sock *, struct rxrpc_call *);
+int rxrpc_recvmsg(struct kiocb *, struct socket *, struct msghdr *, size_t,
+		  int);
 
 /*
  * ar-security.c
  */
-extern int rxrpc_register_security(struct rxrpc_security *);
-extern void rxrpc_unregister_security(struct rxrpc_security *);
-extern int rxrpc_init_client_conn_security(struct rxrpc_connection *);
-extern int rxrpc_init_server_conn_security(struct rxrpc_connection *);
-extern int rxrpc_secure_packet(const struct rxrpc_call *, struct sk_buff *,
-			       size_t, void *);
-extern int rxrpc_verify_packet(const struct rxrpc_call *, struct sk_buff *,
-			       u32 *);
-extern void rxrpc_clear_conn_security(struct rxrpc_connection *);
+int rxrpc_register_security(struct rxrpc_security *);
+void rxrpc_unregister_security(struct rxrpc_security *);
+int rxrpc_init_client_conn_security(struct rxrpc_connection *);
+int rxrpc_init_server_conn_security(struct rxrpc_connection *);
+int rxrpc_secure_packet(const struct rxrpc_call *, struct sk_buff *, size_t,
+			void *);
+int rxrpc_verify_packet(const struct rxrpc_call *, struct sk_buff *, u32 *);
+void rxrpc_clear_conn_security(struct rxrpc_connection *);
 
 /*
  * ar-skbuff.c
  */
-extern void rxrpc_packet_destructor(struct sk_buff *);
+void rxrpc_packet_destructor(struct sk_buff *);
 
 /*
  * ar-transport.c
  */
-extern struct rxrpc_transport *rxrpc_get_transport(struct rxrpc_local *,
-						   struct rxrpc_peer *,
-						   gfp_t);
-extern void rxrpc_put_transport(struct rxrpc_transport *);
-extern void __exit rxrpc_destroy_all_transports(void);
-extern struct rxrpc_transport *rxrpc_find_transport(struct rxrpc_local *,
-						    struct rxrpc_peer *);
+struct rxrpc_transport *rxrpc_get_transport(struct rxrpc_local *,
+					    struct rxrpc_peer *, gfp_t);
+void rxrpc_put_transport(struct rxrpc_transport *);
+void __exit rxrpc_destroy_all_transports(void);
+struct rxrpc_transport *rxrpc_find_transport(struct rxrpc_local *,
+					     struct rxrpc_peer *);
 
 /*
  * debug tracing
diff --git a/net/tipc/core.h b/net/tipc/core.h
index be72f8cebc53..94895d4e86ab 100644
--- a/net/tipc/core.h
+++ b/net/tipc/core.h
@@ -90,21 +90,21 @@ extern int tipc_random __read_mostly;
 /*
  * Routines available to privileged subsystems
  */
-extern int tipc_core_start_net(unsigned long);
-extern int  tipc_handler_start(void);
-extern void tipc_handler_stop(void);
-extern int  tipc_netlink_start(void);
-extern void tipc_netlink_stop(void);
-extern int  tipc_socket_init(void);
-extern void tipc_socket_stop(void);
-extern int tipc_sock_create_local(int type, struct socket **res);
-extern void tipc_sock_release_local(struct socket *sock);
-extern int tipc_sock_accept_local(struct socket *sock,
-				  struct socket **newsock, int flags);
+int tipc_core_start_net(unsigned long);
+int tipc_handler_start(void);
+void tipc_handler_stop(void);
+int tipc_netlink_start(void);
+void tipc_netlink_stop(void);
+int tipc_socket_init(void);
+void tipc_socket_stop(void);
+int tipc_sock_create_local(int type, struct socket **res);
+void tipc_sock_release_local(struct socket *sock);
+int tipc_sock_accept_local(struct socket *sock, struct socket **newsock,
+			   int flags);
 
 #ifdef CONFIG_SYSCTL
-extern int tipc_register_sysctl(void);
-extern void tipc_unregister_sysctl(void);
+int tipc_register_sysctl(void);
+void tipc_unregister_sysctl(void);
 #else
 #define tipc_register_sysctl() 0
 #define tipc_unregister_sysctl()
@@ -201,6 +201,6 @@ static inline struct tipc_msg *buf_msg(struct sk_buff *skb)
 	return (struct tipc_msg *)skb->data;
 }
 
-extern struct sk_buff *tipc_buf_acquire(u32 size);
+struct sk_buff *tipc_buf_acquire(u32 size);
 
 #endif
diff --git a/net/wimax/wimax-internal.h b/net/wimax/wimax-internal.h
index 1e743d214856..5dcd9c067bf0 100644
--- a/net/wimax/wimax-internal.h
+++ b/net/wimax/wimax-internal.h
@@ -63,11 +63,11 @@ void __wimax_state_set(struct wimax_dev *wimax_dev, enum wimax_st state)
 {
 	wimax_dev->state = state;
 }
-extern void __wimax_state_change(struct wimax_dev *, enum wimax_st);
+void __wimax_state_change(struct wimax_dev *, enum wimax_st);
 
 #ifdef CONFIG_DEBUG_FS
-extern int wimax_debugfs_add(struct wimax_dev *);
-extern void wimax_debugfs_rm(struct wimax_dev *);
+int wimax_debugfs_add(struct wimax_dev *);
+void wimax_debugfs_rm(struct wimax_dev *);
 #else
 static inline int wimax_debugfs_add(struct wimax_dev *wimax_dev)
 {
@@ -76,13 +76,13 @@ static inline int wimax_debugfs_add(struct wimax_dev *wimax_dev)
 static inline void wimax_debugfs_rm(struct wimax_dev *wimax_dev) {}
 #endif
 
-extern void wimax_id_table_add(struct wimax_dev *);
-extern struct wimax_dev *wimax_dev_get_by_genl_info(struct genl_info *, int);
-extern void wimax_id_table_rm(struct wimax_dev *);
-extern void wimax_id_table_release(void);
+void wimax_id_table_add(struct wimax_dev *);
+struct wimax_dev *wimax_dev_get_by_genl_info(struct genl_info *, int);
+void wimax_id_table_rm(struct wimax_dev *);
+void wimax_id_table_release(void);
 
-extern int wimax_rfkill_add(struct wimax_dev *);
-extern void wimax_rfkill_rm(struct wimax_dev *);
+int wimax_rfkill_add(struct wimax_dev *);
+void wimax_rfkill_rm(struct wimax_dev *);
 
 extern struct genl_family wimax_gnl_family;
 extern struct genl_multicast_group wimax_gnl_mcg;
diff --git a/net/wireless/core.h b/net/wireless/core.h
index b43efac4efca..74beff1e926f 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -234,10 +234,10 @@ struct cfg80211_beacon_registration {
 };
 
 /* free object */
-extern void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
+void cfg80211_dev_free(struct cfg80211_registered_device *rdev);
 
-extern int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
-			       char *newname);
+int cfg80211_dev_rename(struct cfg80211_registered_device *rdev,
+			char *newname);
 
 void ieee80211_set_bitrate_flags(struct wiphy *wiphy);
 
diff --git a/net/wireless/sysfs.h b/net/wireless/sysfs.h
index 65acbebd3711..b533ed71daff 100644
--- a/net/wireless/sysfs.h
+++ b/net/wireless/sysfs.h
@@ -1,8 +1,8 @@
 #ifndef __WIRELESS_SYSFS_H
 #define __WIRELESS_SYSFS_H
 
-extern int wiphy_sysfs_init(void);
-extern void wiphy_sysfs_exit(void);
+int wiphy_sysfs_init(void);
+void wiphy_sysfs_exit(void);
 
 extern struct class ieee80211_class;
 
diff --git a/net/xfrm/xfrm_hash.h b/net/xfrm/xfrm_hash.h
index 716502ada53b..0622d319e1f2 100644
--- a/net/xfrm/xfrm_hash.h
+++ b/net/xfrm/xfrm_hash.h
@@ -130,7 +130,7 @@ static inline unsigned int __addr_hash(const xfrm_address_t *daddr,
 	return h & hmask;
 }
 
-extern struct hlist_head *xfrm_hash_alloc(unsigned int sz);
-extern void xfrm_hash_free(struct hlist_head *n, unsigned int sz);
+struct hlist_head *xfrm_hash_alloc(unsigned int sz);
+void xfrm_hash_free(struct hlist_head *n, unsigned int sz);
 
 #endif /* _XFRM_HASH_H */
-- 
cgit 


From ea58c18062f04d483d0b4bea51b1e7219b519255 Mon Sep 17 00:00:00 2001
From: Ajit Khaparde <ajit.khaparde@emulex.com>
Date: Fri, 18 Oct 2013 16:06:24 -0500
Subject: be2net: Rework PCIe error report log messaging

Currently we log a message whenever pcie_enable_error_reporting fails.
The message clutters up logs, especially when we don't support it for VFs.
Instead enable this only for PFs and log a message when the call succeeds.

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be_main.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 2d6115c0e99b..f0866e2cdd8d 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -4459,9 +4459,11 @@ static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id)
 		}
 	}
 
-	status = pci_enable_pcie_error_reporting(pdev);
-	if (status)
-		dev_info(&pdev->dev, "Could not use PCIe error reporting\n");
+	if (be_physfn(adapter)) {
+		status = pci_enable_pcie_error_reporting(pdev);
+		if (!status)
+			dev_info(&pdev->dev, "PCIe error reporting enabled\n");
+	}
 
 	status = be_ctrl_init(adapter);
 	if (status)
-- 
cgit 


From b917eb155c56bbb766140b406979820e719e3f55 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 18 Oct 2013 14:43:55 -0700
Subject: ipv6: gso: remove redundant locking

ipv6_gso_send_check() and ipv6_gso_segment() are called by
skb_mac_gso_segment() under rcu lock, no need to use
rcu_read_lock() / rcu_read_unlock()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/ip6_offload.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c
index d82de7228100..b405fba91c72 100644
--- a/net/ipv6/ip6_offload.c
+++ b/net/ipv6/ip6_offload.c
@@ -66,7 +66,6 @@ static int ipv6_gso_send_check(struct sk_buff *skb)
 	__skb_pull(skb, sizeof(*ipv6h));
 	err = -EPROTONOSUPPORT;
 
-	rcu_read_lock();
 	ops = rcu_dereference(inet6_offloads[
 		ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr)]);
 
@@ -74,7 +73,6 @@ static int ipv6_gso_send_check(struct sk_buff *skb)
 		skb_reset_transport_header(skb);
 		err = ops->callbacks.gso_send_check(skb);
 	}
-	rcu_read_unlock();
 
 out:
 	return err;
@@ -113,13 +111,12 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb,
 	segs = ERR_PTR(-EPROTONOSUPPORT);
 
 	proto = ipv6_gso_pull_exthdrs(skb, ipv6h->nexthdr);
-	rcu_read_lock();
+
 	ops = rcu_dereference(inet6_offloads[proto]);
 	if (likely(ops && ops->callbacks.gso_segment)) {
 		skb_reset_transport_header(skb);
 		segs = ops->callbacks.gso_segment(skb, features);
 	}
-	rcu_read_unlock();
 
 	if (IS_ERR(segs))
 		goto out;
-- 
cgit 


From 030737bcc3c404e273e97dbe06fe9561699a411b Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sat, 19 Oct 2013 11:42:54 -0700
Subject: net: generalize skb_segment()

While implementing GSO/TSO support for IPIP, I found skb_segment()
was assuming network header was immediately following mac header.

Its not really true in the case inet_gso_segment() is stacked :
By the time tcp_gso_segment() is called, network header points
to the inner IP header.

Let's instead assume nothing and pick the current offsets found in
original skb, we have skb_headers_offset_update() helper for that.

Also move the csum_start update inside skb_headers_offset_update()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/skbuff.c | 22 +++++-----------------
 1 file changed, 5 insertions(+), 17 deletions(-)

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 8ead744fcc94..0ab32faa520f 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -903,6 +903,9 @@ EXPORT_SYMBOL(skb_clone);
 
 static void skb_headers_offset_update(struct sk_buff *skb, int off)
 {
+	/* Only adjust this if it actually is csum_start rather than csum */
+	if (skb->ip_summed == CHECKSUM_PARTIAL)
+		skb->csum_start += off;
 	/* {transport,network,mac}_header and tail are relative to skb->head */
 	skb->transport_header += off;
 	skb->network_header   += off;
@@ -1109,9 +1112,6 @@ int pskb_expand_head(struct sk_buff *skb, int nhead, int ntail,
 #endif
 	skb->tail	      += off;
 	skb_headers_offset_update(skb, nhead);
-	/* Only adjust this if it actually is csum_start rather than csum */
-	if (skb->ip_summed == CHECKSUM_PARTIAL)
-		skb->csum_start += nhead;
 	skb->cloned   = 0;
 	skb->hdr_len  = 0;
 	skb->nohdr    = 0;
@@ -1176,7 +1176,6 @@ struct sk_buff *skb_copy_expand(const struct sk_buff *skb,
 					NUMA_NO_NODE);
 	int oldheadroom = skb_headroom(skb);
 	int head_copy_len, head_copy_off;
-	int off;
 
 	if (!n)
 		return NULL;
@@ -1200,11 +1199,7 @@ struct sk_buff *skb_copy_expand(const struct sk_buff *skb,
 
 	copy_skb_header(n, skb);
 
-	off                  = newheadroom - oldheadroom;
-	if (n->ip_summed == CHECKSUM_PARTIAL)
-		n->csum_start += off;
-
-	skb_headers_offset_update(n, off);
+	skb_headers_offset_update(n, newheadroom - oldheadroom);
 
 	return n;
 }
@@ -2837,14 +2832,7 @@ struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features)
 		__copy_skb_header(nskb, skb);
 		nskb->mac_len = skb->mac_len;
 
-		/* nskb and skb might have different headroom */
-		if (nskb->ip_summed == CHECKSUM_PARTIAL)
-			nskb->csum_start += skb_headroom(nskb) - headroom;
-
-		skb_reset_mac_header(nskb);
-		skb_set_network_header(nskb, skb->mac_len);
-		nskb->transport_header = (nskb->network_header +
-					  skb_network_header_len(skb));
+		skb_headers_offset_update(nskb, skb_headroom(nskb) - headroom);
 
 		skb_copy_from_linear_data_offset(skb, -tnl_hlen,
 						 nskb->data - tnl_hlen,
-- 
cgit 


From 2d26f0a3c0e22f6b3096a2503d086e4b5e99d708 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sat, 19 Oct 2013 11:42:55 -0700
Subject: ipv4: generalize gre_handle_offloads

This patch makes gre_handle_offloads() more generic
and rename it to iptunnel_handle_offloads()

This will be used to add GSO/TSO support to IPIP tunnels.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/gre.h         |  8 +++++++-
 include/net/ip_tunnels.h  |  3 +++
 net/ipv4/gre_demux.c      | 29 -----------------------------
 net/ipv4/ip_tunnel_core.c | 33 +++++++++++++++++++++++++++++++++
 4 files changed, 43 insertions(+), 30 deletions(-)

diff --git a/include/net/gre.h b/include/net/gre.h
index 57e4afdf7879..dcd9ae3270d3 100644
--- a/include/net/gre.h
+++ b/include/net/gre.h
@@ -38,7 +38,13 @@ void gre_offload_exit(void);
 
 void gre_build_header(struct sk_buff *skb, const struct tnl_ptk_info *tpi,
 		      int hdr_len);
-struct sk_buff *gre_handle_offloads(struct sk_buff *skb, bool gre_csum);
+
+static inline struct sk_buff *gre_handle_offloads(struct sk_buff *skb,
+						  bool gre_csum)
+{
+	return iptunnel_handle_offloads(skb, gre_csum, SKB_GSO_GRE);
+}
+
 
 static inline int ip_gre_calc_hlen(__be16 o_flags)
 {
diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h
index a0a4a100f5c9..732f8c6ae975 100644
--- a/include/net/ip_tunnels.h
+++ b/include/net/ip_tunnels.h
@@ -150,6 +150,9 @@ int iptunnel_xmit(struct rtable *rt, struct sk_buff *skb,
 		  __be32 src, __be32 dst, __u8 proto,
 		  __u8 tos, __u8 ttl, __be16 df, bool xnet);
 
+struct sk_buff *iptunnel_handle_offloads(struct sk_buff *skb, bool gre_csum,
+					 int gso_type_mask);
+
 static inline void iptunnel_xmit_stats(int err,
 				       struct net_device_stats *err_stats,
 				       struct pcpu_tstats __percpu *stats)
diff --git a/net/ipv4/gre_demux.c b/net/ipv4/gre_demux.c
index 736c9fc3ef93..5893e99e8299 100644
--- a/net/ipv4/gre_demux.c
+++ b/net/ipv4/gre_demux.c
@@ -93,35 +93,6 @@ void gre_build_header(struct sk_buff *skb, const struct tnl_ptk_info *tpi,
 }
 EXPORT_SYMBOL_GPL(gre_build_header);
 
-struct sk_buff *gre_handle_offloads(struct sk_buff *skb, bool gre_csum)
-{
-	int err;
-
-	if (likely(!skb->encapsulation)) {
-		skb_reset_inner_headers(skb);
-		skb->encapsulation = 1;
-	}
-
-	if (skb_is_gso(skb)) {
-		err = skb_unclone(skb, GFP_ATOMIC);
-		if (unlikely(err))
-			goto error;
-		skb_shinfo(skb)->gso_type |= SKB_GSO_GRE;
-		return skb;
-	} else if (skb->ip_summed == CHECKSUM_PARTIAL && gre_csum) {
-		err = skb_checksum_help(skb);
-		if (unlikely(err))
-			goto error;
-	} else if (skb->ip_summed != CHECKSUM_PARTIAL)
-		skb->ip_summed = CHECKSUM_NONE;
-
-	return skb;
-error:
-	kfree_skb(skb);
-	return ERR_PTR(err);
-}
-EXPORT_SYMBOL_GPL(gre_handle_offloads);
-
 static __sum16 check_checksum(struct sk_buff *skb)
 {
 	__sum16 csum = 0;
diff --git a/net/ipv4/ip_tunnel_core.c b/net/ipv4/ip_tunnel_core.c
index c31e3ad98ef2..42ffbc8d65c6 100644
--- a/net/ipv4/ip_tunnel_core.c
+++ b/net/ipv4/ip_tunnel_core.c
@@ -116,3 +116,36 @@ int iptunnel_pull_header(struct sk_buff *skb, int hdr_len, __be16 inner_proto)
 	return 0;
 }
 EXPORT_SYMBOL_GPL(iptunnel_pull_header);
+
+struct sk_buff *iptunnel_handle_offloads(struct sk_buff *skb,
+					 bool csum_help,
+					 int gso_type_mask)
+{
+	int err;
+
+	if (likely(!skb->encapsulation)) {
+		skb_reset_inner_headers(skb);
+		skb->encapsulation = 1;
+	}
+
+	if (skb_is_gso(skb)) {
+		err = skb_unclone(skb, GFP_ATOMIC);
+		if (unlikely(err))
+			goto error;
+		skb_shinfo(skb)->gso_type |= gso_type_mask;
+		return skb;
+	}
+
+	if (skb->ip_summed == CHECKSUM_PARTIAL && csum_help) {
+		err = skb_checksum_help(skb);
+		if (unlikely(err))
+			goto error;
+	} else if (skb->ip_summed != CHECKSUM_PARTIAL)
+		skb->ip_summed = CHECKSUM_NONE;
+
+	return skb;
+error:
+	kfree_skb(skb);
+	return ERR_PTR(err);
+}
+EXPORT_SYMBOL_GPL(iptunnel_handle_offloads);
-- 
cgit 


From 3347c960295583eee3fd58e5c539fb1972fbc005 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sat, 19 Oct 2013 11:42:56 -0700
Subject: ipv4: gso: make inet_gso_segment() stackable

In order to support GSO on IPIP, we need to make
inet_gso_segment() stackable.

It should not assume network header starts right after mac
header.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/skbuff.h |  7 +++++--
 net/core/dev.c         |  2 ++
 net/ipv4/af_inet.c     | 25 ++++++++++++++++++-------
 3 files changed, 25 insertions(+), 9 deletions(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index ba74474836c0..cad1e0c5cc04 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2722,9 +2722,12 @@ static inline struct sec_path *skb_sec_path(struct sk_buff *skb)
 /* Keeps track of mac header offset relative to skb->head.
  * It is useful for TSO of Tunneling protocol. e.g. GRE.
  * For non-tunnel skb it points to skb_mac_header() and for
- * tunnel skb it points to outer mac header. */
+ * tunnel skb it points to outer mac header.
+ * Keeps track of level of encapsulation of network headers.
+ */
 struct skb_gso_cb {
-	int mac_offset;
+	int	mac_offset;
+	int	encap_level;
 };
 #define SKB_GSO_CB(skb) ((struct skb_gso_cb *)(skb)->cb)
 
diff --git a/net/core/dev.c b/net/core/dev.c
index 1b6eadf69289..0918aadc20fd 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2377,6 +2377,8 @@ struct sk_buff *__skb_gso_segment(struct sk_buff *skb,
 	}
 
 	SKB_GSO_CB(skb)->mac_offset = skb_headroom(skb);
+	SKB_GSO_CB(skb)->encap_level = 0;
+
 	skb_reset_mac_header(skb);
 	skb_reset_mac_len(skb);
 
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 4f8cd4fc451d..5783ab5b5ef8 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1273,16 +1273,17 @@ out:
 }
 
 static struct sk_buff *inet_gso_segment(struct sk_buff *skb,
-	netdev_features_t features)
+					netdev_features_t features)
 {
 	struct sk_buff *segs = ERR_PTR(-EINVAL);
 	const struct net_offload *ops;
+	unsigned int offset = 0;
 	struct iphdr *iph;
+	bool tunnel;
 	int proto;
+	int nhoff;
 	int ihl;
 	int id;
-	unsigned int offset = 0;
-	bool tunnel;
 
 	if (unlikely(skb_shinfo(skb)->gso_type &
 		     ~(SKB_GSO_TCPV4 |
@@ -1296,6 +1297,8 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb,
 		       0)))
 		goto out;
 
+	skb_reset_network_header(skb);
+	nhoff = skb_network_header(skb) - skb_mac_header(skb);
 	if (unlikely(!pskb_may_pull(skb, sizeof(*iph))))
 		goto out;
 
@@ -1312,7 +1315,10 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb,
 		goto out;
 	__skb_pull(skb, ihl);
 
-	tunnel = !!skb->encapsulation;
+	tunnel = SKB_GSO_CB(skb)->encap_level > 0;
+	if (tunnel)
+		features = skb->dev->hw_enc_features & netif_skb_features(skb);
+	SKB_GSO_CB(skb)->encap_level += ihl;
 
 	skb_reset_transport_header(skb);
 
@@ -1327,18 +1333,23 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb,
 
 	skb = segs;
 	do {
-		iph = ip_hdr(skb);
+		iph = (struct iphdr *)(skb_mac_header(skb) + nhoff);
 		if (!tunnel && proto == IPPROTO_UDP) {
 			iph->id = htons(id);
 			iph->frag_off = htons(offset >> 3);
 			if (skb->next != NULL)
 				iph->frag_off |= htons(IP_MF);
-			offset += (skb->len - skb->mac_len - iph->ihl * 4);
+			offset += skb->len - nhoff - ihl;
 		} else  {
 			iph->id = htons(id++);
 		}
-		iph->tot_len = htons(skb->len - skb->mac_len);
+		iph->tot_len = htons(skb->len - nhoff);
 		ip_send_check(iph);
+		if (tunnel) {
+			skb_reset_inner_headers(skb);
+			skb->encapsulation = 1;
+		}
+		skb->network_header = (u8 *)iph - skb->head;
 	} while ((skb = skb->next));
 
 out:
-- 
cgit 


From cb32f511a70be8967ac9025cf49c44324ced9a39 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sat, 19 Oct 2013 11:42:57 -0700
Subject: ipip: add GSO/TSO support

Now inet_gso_segment() is stackable, its relatively easy to
implement GSO/TSO support for IPIP

Performance results, when segmentation is done after tunnel
device (as no NIC is yet enabled for TSO IPIP support) :

Before patch :

lpq83:~# ./netperf -H 7.7.9.84 -Cc
MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 7.7.9.84 () port 0 AF_INET
Recv   Send    Send                          Utilization       Service Demand
Socket Socket  Message  Elapsed              Send     Recv     Send    Recv
Size   Size    Size     Time     Throughput  local    remote   local   remote
bytes  bytes   bytes    secs.    10^6bits/s  % S      % S      us/KB   us/KB

 87380  16384  16384    10.00      3357.88   5.09     3.70     2.983   2.167

After patch :

lpq83:~# ./netperf -H 7.7.9.84 -Cc
MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 7.7.9.84 () port 0 AF_INET
Recv   Send    Send                          Utilization       Service Demand
Socket Socket  Message  Elapsed              Send     Recv     Send    Recv
Size   Size    Size     Time     Throughput  local    remote   local   remote
bytes  bytes   bytes    secs.    10^6bits/s  % S      % S      us/KB   us/KB

 87380  16384  16384    10.00      7710.19   4.52     6.62     1.152   1.687

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdev_features.h |  2 ++
 include/linux/skbuff.h          |  6 ++++--
 net/core/ethtool.c              |  1 +
 net/ipv4/af_inet.c              |  9 +++++++++
 net/ipv4/gre_offload.c          |  3 ++-
 net/ipv4/ipip.c                 | 11 ++++++-----
 net/ipv4/tcp_offload.c          |  1 +
 net/ipv4/udp_offload.c          |  1 +
 net/ipv6/ip6_offload.c          |  1 +
 net/ipv6/udp_offload.c          |  1 +
 net/mpls/mpls_gso.c             |  1 +
 11 files changed, 29 insertions(+), 8 deletions(-)

diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h
index a2a89a5c7be5..8dad68cede1c 100644
--- a/include/linux/netdev_features.h
+++ b/include/linux/netdev_features.h
@@ -42,6 +42,7 @@ enum {
 	NETIF_F_TSO6_BIT,		/* ... TCPv6 segmentation */
 	NETIF_F_FSO_BIT,		/* ... FCoE segmentation */
 	NETIF_F_GSO_GRE_BIT,		/* ... GRE with TSO */
+	NETIF_F_GSO_IPIP_BIT,		/* ... IPIP tunnel with TSO */
 	NETIF_F_GSO_UDP_TUNNEL_BIT,	/* ... UDP TUNNEL with TSO */
 	NETIF_F_GSO_MPLS_BIT,		/* ... MPLS segmentation */
 	/**/NETIF_F_GSO_LAST =		/* last bit, see GSO_MASK */
@@ -107,6 +108,7 @@ enum {
 #define NETIF_F_RXFCS		__NETIF_F(RXFCS)
 #define NETIF_F_RXALL		__NETIF_F(RXALL)
 #define NETIF_F_GSO_GRE		__NETIF_F(GSO_GRE)
+#define NETIF_F_GSO_IPIP	__NETIF_F(GSO_IPIP)
 #define NETIF_F_GSO_UDP_TUNNEL	__NETIF_F(GSO_UDP_TUNNEL)
 #define NETIF_F_GSO_MPLS	__NETIF_F(GSO_MPLS)
 #define NETIF_F_HW_VLAN_STAG_FILTER __NETIF_F(HW_VLAN_STAG_FILTER)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index cad1e0c5cc04..60729134d253 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -318,9 +318,11 @@ enum {
 
 	SKB_GSO_GRE = 1 << 6,
 
-	SKB_GSO_UDP_TUNNEL = 1 << 7,
+	SKB_GSO_IPIP = 1 << 7,
 
-	SKB_GSO_MPLS = 1 << 8,
+	SKB_GSO_UDP_TUNNEL = 1 << 8,
+
+	SKB_GSO_MPLS = 1 << 9,
 };
 
 #if BITS_PER_LONG > 32
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 78e9d9223e40..8cab7744790e 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -81,6 +81,7 @@ static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN]
 	[NETIF_F_TSO6_BIT] =             "tx-tcp6-segmentation",
 	[NETIF_F_FSO_BIT] =              "tx-fcoe-segmentation",
 	[NETIF_F_GSO_GRE_BIT] =		 "tx-gre-segmentation",
+	[NETIF_F_GSO_IPIP_BIT] =	 "tx-ipip-segmentation",
 	[NETIF_F_GSO_UDP_TUNNEL_BIT] =	 "tx-udp_tnl-segmentation",
 	[NETIF_F_GSO_MPLS_BIT] =	 "tx-mpls-segmentation",
 
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 5783ab5b5ef8..4049906010f7 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1291,6 +1291,7 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb,
 		       SKB_GSO_DODGY |
 		       SKB_GSO_TCP_ECN |
 		       SKB_GSO_GRE |
+		       SKB_GSO_IPIP |
 		       SKB_GSO_TCPV6 |
 		       SKB_GSO_UDP_TUNNEL |
 		       SKB_GSO_MPLS |
@@ -1656,6 +1657,13 @@ static struct packet_offload ip_packet_offload __read_mostly = {
 	},
 };
 
+static const struct net_offload ipip_offload = {
+	.callbacks = {
+		.gso_send_check = inet_gso_send_check,
+		.gso_segment	= inet_gso_segment,
+	},
+};
+
 static int __init ipv4_offload_init(void)
 {
 	/*
@@ -1667,6 +1675,7 @@ static int __init ipv4_offload_init(void)
 		pr_crit("%s: Cannot add TCP protocol offload\n", __func__);
 
 	dev_add_offload(&ip_packet_offload);
+	inet_add_offload(&ipip_offload, IPPROTO_IPIP);
 	return 0;
 }
 
diff --git a/net/ipv4/gre_offload.c b/net/ipv4/gre_offload.c
index 55e6bfb3a289..e5d436188464 100644
--- a/net/ipv4/gre_offload.c
+++ b/net/ipv4/gre_offload.c
@@ -39,7 +39,8 @@ static struct sk_buff *gre_gso_segment(struct sk_buff *skb,
 				  SKB_GSO_UDP |
 				  SKB_GSO_DODGY |
 				  SKB_GSO_TCP_ECN |
-				  SKB_GSO_GRE)))
+				  SKB_GSO_GRE |
+				  SKB_GSO_IPIP)))
 		goto out;
 
 	if (unlikely(!pskb_may_pull(skb, sizeof(*greh))))
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index 7f80fb4b82d3..fe3e9f7f1f0b 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -220,17 +220,17 @@ static netdev_tx_t ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (unlikely(skb->protocol != htons(ETH_P_IP)))
 		goto tx_error;
 
-	if (likely(!skb->encapsulation)) {
-		skb_reset_inner_headers(skb);
-		skb->encapsulation = 1;
-	}
+	skb = iptunnel_handle_offloads(skb, false, SKB_GSO_IPIP);
+	if (IS_ERR(skb))
+		goto out;
 
 	ip_tunnel_xmit(skb, dev, tiph, tiph->protocol);
 	return NETDEV_TX_OK;
 
 tx_error:
-	dev->stats.tx_errors++;
 	dev_kfree_skb(skb);
+out:
+	dev->stats.tx_errors++;
 	return NETDEV_TX_OK;
 }
 
@@ -275,6 +275,7 @@ static const struct net_device_ops ipip_netdev_ops = {
 #define IPIP_FEATURES (NETIF_F_SG |		\
 		       NETIF_F_FRAGLIST |	\
 		       NETIF_F_HIGHDMA |	\
+		       NETIF_F_GSO_SOFTWARE |	\
 		       NETIF_F_HW_CSUM)
 
 static void ipip_tunnel_setup(struct net_device *dev)
diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c
index 8e3113f46ec1..dfc96b00673e 100644
--- a/net/ipv4/tcp_offload.c
+++ b/net/ipv4/tcp_offload.c
@@ -56,6 +56,7 @@ struct sk_buff *tcp_gso_segment(struct sk_buff *skb,
 			       SKB_GSO_TCP_ECN |
 			       SKB_GSO_TCPV6 |
 			       SKB_GSO_GRE |
+			       SKB_GSO_IPIP |
 			       SKB_GSO_MPLS |
 			       SKB_GSO_UDP_TUNNEL |
 			       0) ||
diff --git a/net/ipv4/udp_offload.c b/net/ipv4/udp_offload.c
index f35eccaa855e..83206de2bc76 100644
--- a/net/ipv4/udp_offload.c
+++ b/net/ipv4/udp_offload.c
@@ -52,6 +52,7 @@ static struct sk_buff *udp4_ufo_fragment(struct sk_buff *skb,
 
 		if (unlikely(type & ~(SKB_GSO_UDP | SKB_GSO_DODGY |
 				      SKB_GSO_UDP_TUNNEL |
+				      SKB_GSO_IPIP |
 				      SKB_GSO_GRE | SKB_GSO_MPLS) ||
 			     !(type & (SKB_GSO_UDP))))
 			goto out;
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c
index b405fba91c72..5c2fc1d04196 100644
--- a/net/ipv6/ip6_offload.c
+++ b/net/ipv6/ip6_offload.c
@@ -96,6 +96,7 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb,
 		       SKB_GSO_DODGY |
 		       SKB_GSO_TCP_ECN |
 		       SKB_GSO_GRE |
+		       SKB_GSO_IPIP |
 		       SKB_GSO_UDP_TUNNEL |
 		       SKB_GSO_MPLS |
 		       SKB_GSO_TCPV6 |
diff --git a/net/ipv6/udp_offload.c b/net/ipv6/udp_offload.c
index 60559511bd9c..f63780ff3732 100644
--- a/net/ipv6/udp_offload.c
+++ b/net/ipv6/udp_offload.c
@@ -64,6 +64,7 @@ static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb,
 				      SKB_GSO_DODGY |
 				      SKB_GSO_UDP_TUNNEL |
 				      SKB_GSO_GRE |
+				      SKB_GSO_IPIP |
 				      SKB_GSO_MPLS) ||
 			     !(type & (SKB_GSO_UDP))))
 			goto out;
diff --git a/net/mpls/mpls_gso.c b/net/mpls/mpls_gso.c
index 1bec1219ab81..851cd880b0c0 100644
--- a/net/mpls/mpls_gso.c
+++ b/net/mpls/mpls_gso.c
@@ -33,6 +33,7 @@ static struct sk_buff *mpls_gso_segment(struct sk_buff *skb,
 				  SKB_GSO_DODGY |
 				  SKB_GSO_TCP_ECN |
 				  SKB_GSO_GRE |
+				  SKB_GSO_IPIP |
 				  SKB_GSO_MPLS)))
 		goto out;
 
-- 
cgit 


From 117401ee1df6517203454637fbc3e7e660ce45f6 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sat, 19 Oct 2013 11:42:58 -0700
Subject: bnx2x: add TSO support for IPIP

bnx2x driver already handles TSO for GRE, current code
is the same for IPIP.

Performance results : (Note we are now limited by receiver,
as it does not support GRO for IPIP yet)

Before patch :

lpq83:~# ./netperf -H 7.7.9.84 -Cc
MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 7.7.9.84 () port 0 AF_INET
Recv   Send    Send                          Utilization       Service Demand
Socket Socket  Message  Elapsed              Send     Recv     Send    Recv
Size   Size    Size     Time     Throughput  local    remote   local   remote
bytes  bytes   bytes    secs.    10^6bits/s  % S      % S      us/KB   us/KB

 87380  16384  16384    10.00      7710.19   4.52     6.62     1.152   1.687

After patch :

lpq83:~# ./netperf -H 7.7.9.84 -Cc
MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 7.7.9.84 () port 0 AF_INET
Recv   Send    Send                          Utilization       Service Demand
Socket Socket  Message  Elapsed              Send     Recv     Send    Recv
Size   Size    Size     Time     Throughput  local    remote   local   remote
bytes  bytes   bytes    secs.    10^6bits/s  % S      % S      us/KB   us/KB

 87380  16384  16384    10.00      8532.40   2.55     7.73     0.588   1.781

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 8fd343201576..6e5b35ff7af4 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -12260,10 +12260,12 @@ static int bnx2x_init_dev(struct bnx2x *bp, struct pci_dev *pdev,
 		NETIF_F_RXCSUM | NETIF_F_LRO | NETIF_F_GRO |
 		NETIF_F_RXHASH | NETIF_F_HW_VLAN_CTAG_TX;
 	if (!CHIP_IS_E1x(bp)) {
-		dev->hw_features |= NETIF_F_GSO_GRE | NETIF_F_GSO_UDP_TUNNEL;
+		dev->hw_features |= NETIF_F_GSO_GRE | NETIF_F_GSO_UDP_TUNNEL |
+				    NETIF_F_GSO_IPIP;
 		dev->hw_enc_features =
 			NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG |
 			NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6 |
+			NETIF_F_GSO_IPIP |
 			NETIF_F_GSO_GRE | NETIF_F_GSO_UDP_TUNNEL;
 	}
 
-- 
cgit 


From 65cd8033ff375b68037df61603ee68070dc48578 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Sat, 19 Oct 2013 21:48:51 +0200
Subject: ipv4: split inet_ehashfn to hash functions per compilation unit

This duplicates a bit of code but let's us easily introduce
separate secret keys later. The separate compilation units are
ipv4/inet_hashtabbles.o, ipv4/udp.o and rds/connection.o.

Cc: Eric Dumazet <edumazet@google.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/inet_sock.h    | 22 ++++++----------------
 net/ipv4/inet_hashtables.c | 21 +++++++++++++++++++++
 net/ipv4/udp.c             | 16 ++++++++++++----
 net/rds/connection.c       |  6 +++---
 4 files changed, 42 insertions(+), 23 deletions(-)

diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index 06da91efbc83..7a6c7f80a8fd 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -208,26 +208,16 @@ extern u32 inet_ehash_secret;
 extern u32 ipv6_hash_secret;
 void build_ehash_secret(void);
 
-static inline unsigned int inet_ehashfn(struct net *net,
-					const __be32 laddr, const __u16 lport,
-					const __be32 faddr, const __be16 fport)
+static inline unsigned int __inet_ehashfn(const __be32 laddr,
+					  const __u16 lport,
+					  const __be32 faddr,
+					  const __be16 fport,
+					  u32 initval)
 {
 	return jhash_3words((__force __u32) laddr,
 			    (__force __u32) faddr,
 			    ((__u32) lport) << 16 | (__force __u32)fport,
-			    inet_ehash_secret + net_hash_mix(net));
-}
-
-static inline int inet_sk_ehashfn(const struct sock *sk)
-{
-	const struct inet_sock *inet = inet_sk(sk);
-	const __be32 laddr = inet->inet_rcv_saddr;
-	const __u16 lport = inet->inet_num;
-	const __be32 faddr = inet->inet_daddr;
-	const __be16 fport = inet->inet_dport;
-	struct net *net = sock_net(sk);
-
-	return inet_ehashfn(net, laddr, lport, faddr, fport);
+			    initval);
 }
 
 static inline struct request_sock *inet_reqsk_alloc(struct request_sock_ops *ops)
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index a4b66bbe4f21..18aa668d0cc9 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -24,6 +24,27 @@
 #include <net/secure_seq.h>
 #include <net/ip.h>
 
+static unsigned int inet_ehashfn(struct net *net, const __be32 laddr,
+				 const __u16 lport, const __be32 faddr,
+				 const __be16 fport)
+{
+	return __inet_ehashfn(laddr, lport, faddr, fport,
+			      inet_ehash_secret + net_hash_mix(net));
+}
+
+
+static unsigned int inet_sk_ehashfn(const struct sock *sk)
+{
+	const struct inet_sock *inet = inet_sk(sk);
+	const __be32 laddr = inet->inet_rcv_saddr;
+	const __u16 lport = inet->inet_num;
+	const __be32 faddr = inet->inet_daddr;
+	const __be16 fport = inet->inet_dport;
+	struct net *net = sock_net(sk);
+
+	return inet_ehashfn(net, laddr, lport, faddr, fport);
+}
+
 /*
  * Allocate and initialize a new local port bind bucket.
  * The bindhash mutex for snum's hash chain must be held here.
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 9f27bb800607..b4437c7db6ce 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -407,6 +407,14 @@ static inline int compute_score2(struct sock *sk, struct net *net,
 	return score;
 }
 
+static unsigned int udp_ehashfn(struct net *net, const __be32 laddr,
+				 const __u16 lport, const __be32 faddr,
+				 const __be16 fport)
+{
+	return __inet_ehashfn(laddr, lport, faddr, fport,
+			      inet_ehash_secret + net_hash_mix(net));
+}
+
 
 /* called with read_rcu_lock() */
 static struct sock *udp4_lib_lookup2(struct net *net,
@@ -430,8 +438,8 @@ begin:
 			badness = score;
 			reuseport = sk->sk_reuseport;
 			if (reuseport) {
-				hash = inet_ehashfn(net, daddr, hnum,
-						    saddr, sport);
+				hash = udp_ehashfn(net, daddr, hnum,
+						   saddr, sport);
 				matches = 1;
 			}
 		} else if (score == badness && reuseport) {
@@ -511,8 +519,8 @@ begin:
 			badness = score;
 			reuseport = sk->sk_reuseport;
 			if (reuseport) {
-				hash = inet_ehashfn(net, daddr, hnum,
-						    saddr, sport);
+				hash = udp_ehashfn(net, daddr, hnum,
+						   saddr, sport);
 				matches = 1;
 			}
 		} else if (score == badness && reuseport) {
diff --git a/net/rds/connection.c b/net/rds/connection.c
index 642ad42c416b..45e23660437a 100644
--- a/net/rds/connection.c
+++ b/net/rds/connection.c
@@ -52,9 +52,9 @@ static struct kmem_cache *rds_conn_slab;
 static struct hlist_head *rds_conn_bucket(__be32 laddr, __be32 faddr)
 {
 	/* Pass NULL, don't need struct net for hash */
-	unsigned long hash = inet_ehashfn(NULL,
-					  be32_to_cpu(laddr), 0,
-					  be32_to_cpu(faddr), 0);
+	unsigned long hash = __inet_ehashfn(be32_to_cpu(laddr), 0,
+					    be32_to_cpu(faddr), 0,
+					    inet_ehash_secret);
 	return &rds_conn_hash[hash & RDS_CONNECTION_HASH_MASK];
 }
 
-- 
cgit 


From b50026b5ac8fe2932e6af0c54b21da0913c4c1c7 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Sat, 19 Oct 2013 21:48:52 +0200
Subject: ipv6: split inet6_ehashfn to hash functions per compilation unit

This patch splits the inet6_ehashfn into separate ones in
ipv6/inet6_hashtables.o and ipv6/udp.o to ease the introduction of
seperate secrets keys later.

Cc: Eric Dumazet <edumazet@google.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/inet6_hashtables.h | 28 +++++++---------------------
 include/net/ipv6.h             |  4 ++--
 net/ipv6/inet6_hashtables.c    | 24 ++++++++++++++++++++++++
 net/ipv6/udp.c                 | 20 ++++++++++++++++----
 4 files changed, 49 insertions(+), 27 deletions(-)

diff --git a/include/net/inet6_hashtables.h b/include/net/inet6_hashtables.h
index a105d1a2fc00..ae0613544308 100644
--- a/include/net/inet6_hashtables.h
+++ b/include/net/inet6_hashtables.h
@@ -28,28 +28,14 @@
 
 struct inet_hashinfo;
 
-static inline unsigned int inet6_ehashfn(struct net *net,
-				const struct in6_addr *laddr, const u16 lport,
-				const struct in6_addr *faddr, const __be16 fport)
+static inline unsigned int __inet6_ehashfn(const u32 lhash,
+				    const u16 lport,
+				    const u32 fhash,
+				    const __be16 fport,
+				    const u32 initval)
 {
-	u32 ports = (((u32)lport) << 16) | (__force u32)fport;
-
-	return jhash_3words((__force u32)laddr->s6_addr32[3],
-			    ipv6_addr_jhash(faddr),
-			    ports,
-			    inet_ehash_secret + net_hash_mix(net));
-}
-
-static inline int inet6_sk_ehashfn(const struct sock *sk)
-{
-	const struct inet_sock *inet = inet_sk(sk);
-	const struct in6_addr *laddr = &sk->sk_v6_rcv_saddr;
-	const struct in6_addr *faddr = &sk->sk_v6_daddr;
-	const __u16 lport = inet->inet_num;
-	const __be16 fport = inet->inet_dport;
-	struct net *net = sock_net(sk);
-
-	return inet6_ehashfn(net, laddr, lport, faddr, fport);
+	const u32 ports = (((u32)lport) << 16) | (__force u32)fport;
+	return jhash_3words(lhash, fhash, ports, initval);
 }
 
 int __inet6_hash(struct sock *sk, struct inet_timewait_sock *twp);
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index fe1c7f6c9217..a35055f4f8da 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -539,14 +539,14 @@ static inline u32 ipv6_addr_hash(const struct in6_addr *a)
 }
 
 /* more secured version of ipv6_addr_hash() */
-static inline u32 ipv6_addr_jhash(const struct in6_addr *a)
+static inline u32 __ipv6_addr_jhash(const struct in6_addr *a, const u32 initval)
 {
 	u32 v = (__force u32)a->s6_addr32[0] ^ (__force u32)a->s6_addr32[1];
 
 	return jhash_3words(v,
 			    (__force u32)a->s6_addr32[2],
 			    (__force u32)a->s6_addr32[3],
-			    ipv6_hash_secret);
+			    initval);
 }
 
 static inline bool ipv6_addr_loopback(const struct in6_addr *a)
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index 842d833dfc18..fa7dd3856c55 100644
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c
@@ -23,6 +23,30 @@
 #include <net/secure_seq.h>
 #include <net/ip.h>
 
+static unsigned int inet6_ehashfn(struct net *net,
+				  const struct in6_addr *laddr,
+				  const u16 lport,
+				  const struct in6_addr *faddr,
+				  const __be16 fport)
+{
+	const u32 lhash = (__force u32)laddr->s6_addr32[3];
+	const u32 fhash = __ipv6_addr_jhash(faddr, ipv6_hash_secret);
+	return __inet6_ehashfn(lhash, lport, fhash, fport,
+			       inet_ehash_secret + net_hash_mix(net));
+}
+
+static int inet6_sk_ehashfn(const struct sock *sk)
+{
+	const struct inet_sock *inet = inet_sk(sk);
+	const struct in6_addr *laddr = &sk->sk_v6_rcv_saddr;
+	const struct in6_addr *faddr = &sk->sk_v6_daddr;
+	const __u16 lport = inet->inet_num;
+	const __be16 fport = inet->inet_dport;
+	struct net *net = sock_net(sk);
+
+	return inet6_ehashfn(net, laddr, lport, faddr, fport);
+}
+
 int __inet6_hash(struct sock *sk, struct inet_timewait_sock *tw)
 {
 	struct inet_hashinfo *hashinfo = sk->sk_prot->h.hashinfo;
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index b496de19a341..324bd36c23bc 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -53,6 +53,18 @@
 #include <trace/events/skb.h>
 #include "udp_impl.h"
 
+static unsigned int udp6_ehashfn(struct net *net,
+				  const struct in6_addr *laddr,
+				  const u16 lport,
+				  const struct in6_addr *faddr,
+				  const __be16 fport)
+{
+	const u32 lhash = (__force u32)laddr->s6_addr32[3];
+	const u32 fhash = __ipv6_addr_jhash(faddr, ipv6_hash_secret);
+	return __inet6_ehashfn(lhash, lport, fhash, fport,
+			       inet_ehash_secret + net_hash_mix(net));
+}
+
 int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
 {
 	const struct in6_addr *sk2_rcv_saddr6 = inet6_rcv_saddr(sk2);
@@ -214,8 +226,8 @@ begin:
 			badness = score;
 			reuseport = sk->sk_reuseport;
 			if (reuseport) {
-				hash = inet6_ehashfn(net, daddr, hnum,
-						     saddr, sport);
+				hash = udp6_ehashfn(net, daddr, hnum,
+						    saddr, sport);
 				matches = 1;
 			} else if (score == SCORE2_MAX)
 				goto exact_match;
@@ -295,8 +307,8 @@ begin:
 			badness = score;
 			reuseport = sk->sk_reuseport;
 			if (reuseport) {
-				hash = inet6_ehashfn(net, daddr, hnum,
-						     saddr, sport);
+				hash = udp6_ehashfn(net, daddr, hnum,
+						    saddr, sport);
 				matches = 1;
 			}
 		} else if (score == badness && reuseport) {
-- 
cgit 


From c4b2c0c5f647aa1093e8f9097a30c17ce0f94d4d Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Sat, 19 Oct 2013 21:48:53 +0200
Subject: static_key: WARN on usage before jump_label_init was called

Usage of the static key primitives to toggle a branch must not be used
before jump_label_init() is called from init/main.c. jump_label_init
reorganizes and wires up the jump_entries so usage before that could
have unforeseen consequences.

Following primitives are now checked for correct use:
* static_key_slow_inc
* static_key_slow_dec
* static_key_slow_dec_deferred
* jump_label_rate_limit

The x86 architecture already checks this by testing if the default_nop
was already replaced with an optimal nop or with a branch instruction. It
will panic then. Other architectures don't check for this.

Because we need to relax this check for the x86 arch to allow code to
transition from default_nop to the enabled state and other architectures
did not check for this at all this patch introduces checking on the
static_key primitives in a non-arch dependent manner.

All checked functions are considered slow-path so the additional check
does no harm to performance.

The warnings are best observed with earlyprintk.

Based on a patch from Andi Kleen.

Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/jump_label.h           | 10 ++++++++++
 include/linux/jump_label_ratelimit.h |  2 ++
 init/main.c                          |  7 +++++++
 kernel/jump_label.c                  |  5 +++++
 4 files changed, 24 insertions(+)

diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h
index a5079072da66..e96be7245717 100644
--- a/include/linux/jump_label.h
+++ b/include/linux/jump_label.h
@@ -48,6 +48,13 @@
 
 #include <linux/types.h>
 #include <linux/compiler.h>
+#include <linux/bug.h>
+
+extern bool static_key_initialized;
+
+#define STATIC_KEY_CHECK_USE() WARN(!static_key_initialized,		      \
+				    "%s used before call to jump_label_init", \
+				    __func__)
 
 #if defined(CC_HAVE_ASM_GOTO) && defined(CONFIG_JUMP_LABEL)
 
@@ -128,6 +135,7 @@ struct static_key {
 
 static __always_inline void jump_label_init(void)
 {
+	static_key_initialized = true;
 }
 
 static __always_inline bool static_key_false(struct static_key *key)
@@ -146,11 +154,13 @@ static __always_inline bool static_key_true(struct static_key *key)
 
 static inline void static_key_slow_inc(struct static_key *key)
 {
+	STATIC_KEY_CHECK_USE();
 	atomic_inc(&key->enabled);
 }
 
 static inline void static_key_slow_dec(struct static_key *key)
 {
+	STATIC_KEY_CHECK_USE();
 	atomic_dec(&key->enabled);
 }
 
diff --git a/include/linux/jump_label_ratelimit.h b/include/linux/jump_label_ratelimit.h
index 113788389b3d..089f70f83e97 100644
--- a/include/linux/jump_label_ratelimit.h
+++ b/include/linux/jump_label_ratelimit.h
@@ -23,12 +23,14 @@ struct static_key_deferred {
 };
 static inline void static_key_slow_dec_deferred(struct static_key_deferred *key)
 {
+	STATIC_KEY_CHECK_USE();
 	static_key_slow_dec(&key->key);
 }
 static inline void
 jump_label_rate_limit(struct static_key_deferred *key,
 		unsigned long rl)
 {
+	STATIC_KEY_CHECK_USE();
 }
 #endif	/* HAVE_JUMP_LABEL */
 #endif	/* _LINUX_JUMP_LABEL_RATELIMIT_H */
diff --git a/init/main.c b/init/main.c
index af310afbef28..27bbec1a5b35 100644
--- a/init/main.c
+++ b/init/main.c
@@ -135,6 +135,13 @@ static char *static_command_line;
 static char *execute_command;
 static char *ramdisk_execute_command;
 
+/*
+ * Used to generate warnings if static_key manipulation functions are used
+ * before jump_label_init is called.
+ */
+bool static_key_initialized __read_mostly = false;
+EXPORT_SYMBOL_GPL(static_key_initialized);
+
 /*
  * If set, this is an indication to the drivers that reset the underlying
  * device before going ahead with the initialization otherwise driver might
diff --git a/kernel/jump_label.c b/kernel/jump_label.c
index 297a9247a3b3..9019f15deab2 100644
--- a/kernel/jump_label.c
+++ b/kernel/jump_label.c
@@ -58,6 +58,7 @@ static void jump_label_update(struct static_key *key, int enable);
 
 void static_key_slow_inc(struct static_key *key)
 {
+	STATIC_KEY_CHECK_USE();
 	if (atomic_inc_not_zero(&key->enabled))
 		return;
 
@@ -103,12 +104,14 @@ static void jump_label_update_timeout(struct work_struct *work)
 
 void static_key_slow_dec(struct static_key *key)
 {
+	STATIC_KEY_CHECK_USE();
 	__static_key_slow_dec(key, 0, NULL);
 }
 EXPORT_SYMBOL_GPL(static_key_slow_dec);
 
 void static_key_slow_dec_deferred(struct static_key_deferred *key)
 {
+	STATIC_KEY_CHECK_USE();
 	__static_key_slow_dec(&key->key, key->timeout, &key->work);
 }
 EXPORT_SYMBOL_GPL(static_key_slow_dec_deferred);
@@ -116,6 +119,7 @@ EXPORT_SYMBOL_GPL(static_key_slow_dec_deferred);
 void jump_label_rate_limit(struct static_key_deferred *key,
 		unsigned long rl)
 {
+	STATIC_KEY_CHECK_USE();
 	key->timeout = rl;
 	INIT_DELAYED_WORK(&key->work, jump_label_update_timeout);
 }
@@ -212,6 +216,7 @@ void __init jump_label_init(void)
 		key->next = NULL;
 #endif
 	}
+	static_key_initialized = true;
 	jump_label_unlock();
 }
 
-- 
cgit 


From a8fab0744585c1ab61009bfc1a1958f28e1c864f Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Sat, 19 Oct 2013 21:48:54 +0200
Subject: x86/jump_label: expect default_nop if static_key gets enabled on
 boot-up

net_get_random_once(intrduced in the next patch) uses static_keys in
a way that they get enabled on boot-up instead of replaced with an
ideal_nop. So check for default_nop on initial enabling.

Other architectures don't check for this.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Eric Dumazet <edumazet@google.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: x86@kernel.org
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/x86/kernel/jump_label.c | 25 ++++++++++++++++++-------
 1 file changed, 18 insertions(+), 7 deletions(-)

diff --git a/arch/x86/kernel/jump_label.c b/arch/x86/kernel/jump_label.c
index ee11b7dfbfbb..26d5a55a2736 100644
--- a/arch/x86/kernel/jump_label.c
+++ b/arch/x86/kernel/jump_label.c
@@ -42,15 +42,27 @@ static void __jump_label_transform(struct jump_entry *entry,
 				   int init)
 {
 	union jump_code_union code;
+	const unsigned char default_nop[] = { STATIC_KEY_INIT_NOP };
 	const unsigned char *ideal_nop = ideal_nops[NOP_ATOMIC5];
 
 	if (type == JUMP_LABEL_ENABLE) {
-		/*
-		 * We are enabling this jump label. If it is not a nop
-		 * then something must have gone wrong.
-		 */
-		if (unlikely(memcmp((void *)entry->code, ideal_nop, 5) != 0))
-			bug_at((void *)entry->code, __LINE__);
+		if (init) {
+			/*
+			 * Jump label is enabled for the first time.
+			 * So we expect a default_nop...
+			 */
+			if (unlikely(memcmp((void *)entry->code, default_nop, 5)
+				     != 0))
+				bug_at((void *)entry->code, __LINE__);
+		} else {
+			/*
+			 * ...otherwise expect an ideal_nop. Otherwise
+			 * something went horribly wrong.
+			 */
+			if (unlikely(memcmp((void *)entry->code, ideal_nop, 5)
+				     != 0))
+				bug_at((void *)entry->code, __LINE__);
+		}
 
 		code.jump = 0xe9;
 		code.offset = entry->target -
@@ -63,7 +75,6 @@ static void __jump_label_transform(struct jump_entry *entry,
 		 * are converting the default nop to the ideal nop.
 		 */
 		if (init) {
-			const unsigned char default_nop[] = { STATIC_KEY_INIT_NOP };
 			if (unlikely(memcmp((void *)entry->code, default_nop, 5) != 0))
 				bug_at((void *)entry->code, __LINE__);
 		} else {
-- 
cgit 


From a48e42920ff38bc90bbf75143fff4555723d4540 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Sat, 19 Oct 2013 21:48:55 +0200
Subject: net: introduce new macro net_get_random_once

net_get_random_once is a new macro which handles the initialization
of secret keys. It is possible to call it in the fast path. Only the
initialization depends on the spinlock and is rather slow. Otherwise
it should get used just before the key is used to delay the entropy
extration as late as possible to get better randomness. It returns true
if the key got initialized.

The usage of static_keys for net_get_random_once is a bit uncommon so
it needs some further explanation why this actually works:

=== In the simple non-HAVE_JUMP_LABEL case we actually have ===
no constrains to use static_key_(true|false) on keys initialized with
STATIC_KEY_INIT_(FALSE|TRUE). So this path just expands in favor of
the likely case that the initialization is already done. The key is
initialized like this:

___done_key = { .enabled = ATOMIC_INIT(0) }

The check

                if (!static_key_true(&___done_key))                     \

expands into (pseudo code)

                if (!likely(___done_key > 0))

, so we take the fast path as soon as ___done_key is increased from the
helper function.

=== If HAVE_JUMP_LABELs are available this depends ===
on patching of jumps into the prepared NOPs, which is done in
jump_label_init at boot-up time (from start_kernel). It is forbidden
and dangerous to use net_get_random_once in functions which are called
before that!

At compilation time NOPs are generated at the call sites of
net_get_random_once. E.g. net/ipv6/inet6_hashtable.c:inet6_ehashfn (we
need to call net_get_random_once two times in inet6_ehashfn, so two NOPs):

      71:       0f 1f 44 00 00          nopl   0x0(%rax,%rax,1)
      76:       0f 1f 44 00 00          nopl   0x0(%rax,%rax,1)

Both will be patched to the actual jumps to the end of the function to
call __net_get_random_once at boot time as explained above.

arch_static_branch is optimized and inlined for false as return value and
actually also returns false in case the NOP is placed in the instruction
stream. So in the fast case we get a "return false". But because we
initialize ___done_key with (enabled != (entries & 1)) this call-site
will get patched up at boot thus returning true. The final check looks
like this:

                if (!static_key_true(&___done_key))                     \
                        ___ret = __net_get_random_once(buf,             \

expands to

                if (!!static_key_false(&___done_key))                     \
                        ___ret = __net_get_random_once(buf,             \

So we get true at boot time and as soon as static_key_slow_inc is called
on the key it will invert the logic and return false for the fast path.
static_key_slow_inc will change the branch because it got initialized
with .enabled == 0. After static_key_slow_inc is called on the key the
branch is replaced with a nop again.

=== Misc: ===
The helper defers the increment into a workqueue so we don't
have problems calling this code from atomic sections. A seperate boolean
(___done) guards the case where we enter net_get_random_once again before
the increment happend.

Cc: Ingo Molnar <mingo@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Eric Dumazet <edumazet@google.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/net.h | 25 +++++++++++++++++++++++++
 net/core/utils.c    | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 73 insertions(+)

diff --git a/include/linux/net.h b/include/linux/net.h
index ca9ec8540905..a489705f6fa3 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -239,6 +239,31 @@ do {								\
 #define net_random()		prandom_u32()
 #define net_srandom(seed)	prandom_seed((__force u32)(seed))
 
+bool __net_get_random_once(void *buf, int nbytes, bool *done,
+			   struct static_key *done_key);
+
+#ifdef HAVE_JUMP_LABEL
+#define ___NET_RANDOM_STATIC_KEY_INIT ((struct static_key) \
+		{ .enabled = ATOMIC_INIT(0), .entries = (void *)1 })
+#else /* !HAVE_JUMP_LABEL */
+#define ___NET_RANDOM_STATIC_KEY_INIT STATIC_KEY_INIT_FALSE
+#endif /* HAVE_JUMP_LABEL */
+
+/* BE CAREFUL: this function is not interrupt safe */
+#define net_get_random_once(buf, nbytes)				\
+	({								\
+		bool ___ret = false;					\
+		static bool ___done = false;				\
+		static struct static_key ___done_key =			\
+			___NET_RANDOM_STATIC_KEY_INIT;			\
+		if (!static_key_true(&___done_key))			\
+			___ret = __net_get_random_once(buf,		\
+						       nbytes,		\
+						       &___done,	\
+						       &___done_key);	\
+		___ret;							\
+	})
+
 int kernel_sendmsg(struct socket *sock, struct msghdr *msg, struct kvec *vec,
 		   size_t num, size_t len);
 int kernel_recvmsg(struct socket *sock, struct msghdr *msg, struct kvec *vec,
diff --git a/net/core/utils.c b/net/core/utils.c
index aa88e23fc87a..bf09371e19b1 100644
--- a/net/core/utils.c
+++ b/net/core/utils.c
@@ -338,3 +338,51 @@ void inet_proto_csum_replace16(__sum16 *sum, struct sk_buff *skb,
 				  csum_unfold(*sum)));
 }
 EXPORT_SYMBOL(inet_proto_csum_replace16);
+
+struct __net_random_once_work {
+	struct work_struct work;
+	struct static_key *key;
+};
+
+static void __net_random_once_deferred(struct work_struct *w)
+{
+	struct __net_random_once_work *work =
+		container_of(w, struct __net_random_once_work, work);
+	if (!static_key_enabled(work->key))
+		static_key_slow_inc(work->key);
+	kfree(work);
+}
+
+static void __net_random_once_disable_jump(struct static_key *key)
+{
+	struct __net_random_once_work *w;
+
+	w = kmalloc(sizeof(*w), GFP_ATOMIC);
+	if (!w)
+		return;
+
+	INIT_WORK(&w->work, __net_random_once_deferred);
+	w->key = key;
+	schedule_work(&w->work);
+}
+
+bool __net_get_random_once(void *buf, int nbytes, bool *done,
+			   struct static_key *done_key)
+{
+	static DEFINE_SPINLOCK(lock);
+
+	spin_lock_bh(&lock);
+	if (*done) {
+		spin_unlock_bh(&lock);
+		return false;
+	}
+
+	get_random_bytes(buf, nbytes);
+	*done = true;
+	spin_unlock_bh(&lock);
+
+	__net_random_once_disable_jump(done_key);
+
+	return true;
+}
+EXPORT_SYMBOL(__net_get_random_once);
-- 
cgit 


From b23a002fc6f0c19846ee0382f019429af54a27e9 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Sat, 19 Oct 2013 21:48:56 +0200
Subject: inet: split syncookie keys for ipv4 and ipv6 and initialize with
 net_get_random_once

This patch splits the secret key for syncookies for ipv4 and ipv6 and
initializes them with net_get_random_once. This change was the reason I
did this series. I think the initialization of the syncookie_secret is
way to early.

Cc: Florian Westphal <fw@strlen.de>
Cc: Eric Dumazet <edumazet@google.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/tcp.h     |  1 -
 net/ipv4/syncookies.c | 15 +++++----------
 net/ipv6/syncookies.c | 12 +++++++++---
 3 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 372dcccfeed0..f30326f1c92b 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -475,7 +475,6 @@ int tcp_send_rcvq(struct sock *sk, struct msghdr *msg, size_t size);
 void inet_sk_rx_dst_set(struct sock *sk, const struct sk_buff *skb);
 
 /* From syncookies.c */
-extern __u32 syncookie_secret[2][16-4+SHA_DIGEST_WORDS];
 int __cookie_v4_check(const struct iphdr *iph, const struct tcphdr *th,
 		      u32 cookie);
 struct sock *cookie_v4_check(struct sock *sk, struct sk_buff *skb,
diff --git a/net/ipv4/syncookies.c b/net/ipv4/syncookies.c
index 3b64c59b4109..b95331e6c077 100644
--- a/net/ipv4/syncookies.c
+++ b/net/ipv4/syncookies.c
@@ -25,15 +25,7 @@
 
 extern int sysctl_tcp_syncookies;
 
-__u32 syncookie_secret[2][16-4+SHA_DIGEST_WORDS];
-EXPORT_SYMBOL(syncookie_secret);
-
-static __init int init_syncookies(void)
-{
-	get_random_bytes(syncookie_secret, sizeof(syncookie_secret));
-	return 0;
-}
-__initcall(init_syncookies);
+static u32 syncookie_secret[2][16-4+SHA_DIGEST_WORDS];
 
 #define COOKIEBITS 24	/* Upper bits store count */
 #define COOKIEMASK (((__u32)1 << COOKIEBITS) - 1)
@@ -44,8 +36,11 @@ static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS],
 static u32 cookie_hash(__be32 saddr, __be32 daddr, __be16 sport, __be16 dport,
 		       u32 count, int c)
 {
-	__u32 *tmp = __get_cpu_var(ipv4_cookie_scratch);
+	__u32 *tmp;
+
+	net_get_random_once(syncookie_secret, sizeof(syncookie_secret));
 
+	tmp  = __get_cpu_var(ipv4_cookie_scratch);
 	memcpy(tmp + 4, syncookie_secret[c], sizeof(syncookie_secret[c]));
 	tmp[0] = (__force u32)saddr;
 	tmp[1] = (__force u32)daddr;
diff --git a/net/ipv6/syncookies.c b/net/ipv6/syncookies.c
index d04d3f1dd9b7..535a3ad262f1 100644
--- a/net/ipv6/syncookies.c
+++ b/net/ipv6/syncookies.c
@@ -24,6 +24,8 @@
 #define COOKIEBITS 24	/* Upper bits store count */
 #define COOKIEMASK (((__u32)1 << COOKIEBITS) - 1)
 
+static u32 syncookie6_secret[2][16-4+SHA_DIGEST_WORDS];
+
 /* RFC 2460, Section 8.3:
  * [ipv6 tcp] MSS must be computed as the maximum packet size minus 60 [..]
  *
@@ -61,14 +63,18 @@ static DEFINE_PER_CPU(__u32 [16 + 5 + SHA_WORKSPACE_WORDS],
 static u32 cookie_hash(const struct in6_addr *saddr, const struct in6_addr *daddr,
 		       __be16 sport, __be16 dport, u32 count, int c)
 {
-	__u32 *tmp = __get_cpu_var(ipv6_cookie_scratch);
+	__u32 *tmp;
+
+	net_get_random_once(syncookie6_secret, sizeof(syncookie6_secret));
+
+	tmp  = __get_cpu_var(ipv6_cookie_scratch);
 
 	/*
 	 * we have 320 bits of information to hash, copy in the remaining
-	 * 192 bits required for sha_transform, from the syncookie_secret
+	 * 192 bits required for sha_transform, from the syncookie6_secret
 	 * and overwrite the digest with the secret
 	 */
-	memcpy(tmp + 10, syncookie_secret[c], 44);
+	memcpy(tmp + 10, syncookie6_secret[c], 44);
 	memcpy(tmp, saddr, 16);
 	memcpy(tmp + 4, daddr, 16);
 	tmp[8] = ((__force u32)sport << 16) + (__force u32)dport;
-- 
cgit 


From 1bbdceef1e535add893bf71d7b7ab102e4eb69eb Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Sat, 19 Oct 2013 21:48:57 +0200
Subject: inet: convert inet_ehash_secret and ipv6_hash_secret to
 net_get_random_once

Initialize the ehash and ipv6_hash_secrets with net_get_random_once.

Each compilation unit gets its own secret now:
  ipv4/inet_hashtables.o
  ipv4/udp.o
  ipv6/inet6_hashtables.o
  ipv6/udp.o
  rds/connection.o

The functions still get inlined into the hashing functions. In the fast
path we have at most two (needed in ipv6) if (unlikely(...)).

Cc: Eric Dumazet <edumazet@google.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/inet_sock.h     |  4 ----
 net/ipv4/af_inet.c          | 27 ---------------------------
 net/ipv4/inet_hashtables.c  |  4 ++++
 net/ipv4/udp.c              |  6 +++++-
 net/ipv6/af_inet6.c         |  5 -----
 net/ipv6/inet6_hashtables.c | 15 ++++++++++++---
 net/ipv6/udp.c              | 17 ++++++++++++++---
 net/rds/connection.c        | 12 +++++++++---
 8 files changed, 44 insertions(+), 46 deletions(-)

diff --git a/include/net/inet_sock.h b/include/net/inet_sock.h
index 7a6c7f80a8fd..1833c3f389ee 100644
--- a/include/net/inet_sock.h
+++ b/include/net/inet_sock.h
@@ -204,10 +204,6 @@ static inline void inet_sk_copy_descendant(struct sock *sk_to,
 
 int inet_sk_rebuild_header(struct sock *sk);
 
-extern u32 inet_ehash_secret;
-extern u32 ipv6_hash_secret;
-void build_ehash_secret(void);
-
 static inline unsigned int __inet_ehashfn(const __be32 laddr,
 					  const __u16 lport,
 					  const __be32 faddr,
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 4049906010f7..9433a6186f54 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -245,29 +245,6 @@ out:
 }
 EXPORT_SYMBOL(inet_listen);
 
-u32 inet_ehash_secret __read_mostly;
-EXPORT_SYMBOL(inet_ehash_secret);
-
-u32 ipv6_hash_secret __read_mostly;
-EXPORT_SYMBOL(ipv6_hash_secret);
-
-/*
- * inet_ehash_secret must be set exactly once, and to a non nul value
- * ipv6_hash_secret must be set exactly once.
- */
-void build_ehash_secret(void)
-{
-	u32 rnd;
-
-	do {
-		get_random_bytes(&rnd, sizeof(rnd));
-	} while (rnd == 0);
-
-	if (cmpxchg(&inet_ehash_secret, 0, rnd) == 0)
-		get_random_bytes(&ipv6_hash_secret, sizeof(ipv6_hash_secret));
-}
-EXPORT_SYMBOL(build_ehash_secret);
-
 /*
  *	Create an inet socket.
  */
@@ -284,10 +261,6 @@ static int inet_create(struct net *net, struct socket *sock, int protocol,
 	int try_loading_module = 0;
 	int err;
 
-	if (unlikely(!inet_ehash_secret))
-		if (sock->type != SOCK_RAW && sock->type != SOCK_DGRAM)
-			build_ehash_secret();
-
 	sock->state = SS_UNCONNECTED;
 
 	/* Look for the requested type/protocol pair. */
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c
index 18aa668d0cc9..8b9cf279450d 100644
--- a/net/ipv4/inet_hashtables.c
+++ b/net/ipv4/inet_hashtables.c
@@ -28,6 +28,10 @@ static unsigned int inet_ehashfn(struct net *net, const __be32 laddr,
 				 const __u16 lport, const __be32 faddr,
 				 const __be16 fport)
 {
+	static u32 inet_ehash_secret __read_mostly;
+
+	net_get_random_once(&inet_ehash_secret, sizeof(inet_ehash_secret));
+
 	return __inet_ehashfn(laddr, lport, faddr, fport,
 			      inet_ehash_secret + net_hash_mix(net));
 }
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index b4437c7db6ce..89909dd730dd 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -411,8 +411,12 @@ static unsigned int udp_ehashfn(struct net *net, const __be32 laddr,
 				 const __u16 lport, const __be32 faddr,
 				 const __be16 fport)
 {
+	static u32 udp_ehash_secret __read_mostly;
+
+	net_get_random_once(&udp_ehash_secret, sizeof(udp_ehash_secret));
+
 	return __inet_ehashfn(laddr, lport, faddr, fport,
-			      inet_ehash_secret + net_hash_mix(net));
+			      udp_ehash_secret + net_hash_mix(net));
 }
 
 
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index a2cb07cd3850..20af1fb81c83 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -110,11 +110,6 @@ static int inet6_create(struct net *net, struct socket *sock, int protocol,
 	int try_loading_module = 0;
 	int err;
 
-	if (sock->type != SOCK_RAW &&
-	    sock->type != SOCK_DGRAM &&
-	    !inet_ehash_secret)
-		build_ehash_secret();
-
 	/* Look for the requested type/protocol pair. */
 lookup_protocol:
 	err = -ESOCKTNOSUPPORT;
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index fa7dd3856c55..262e13c02ec2 100644
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c
@@ -29,10 +29,19 @@ static unsigned int inet6_ehashfn(struct net *net,
 				  const struct in6_addr *faddr,
 				  const __be16 fport)
 {
-	const u32 lhash = (__force u32)laddr->s6_addr32[3];
-	const u32 fhash = __ipv6_addr_jhash(faddr, ipv6_hash_secret);
+	static u32 inet6_ehash_secret __read_mostly;
+	static u32 ipv6_hash_secret __read_mostly;
+
+	u32 lhash, fhash;
+
+	net_get_random_once(&inet6_ehash_secret, sizeof(inet6_ehash_secret));
+	net_get_random_once(&ipv6_hash_secret, sizeof(ipv6_hash_secret));
+
+	lhash = (__force u32)laddr->s6_addr32[3];
+	fhash = __ipv6_addr_jhash(faddr, ipv6_hash_secret);
+
 	return __inet6_ehashfn(lhash, lport, fhash, fport,
-			       inet_ehash_secret + net_hash_mix(net));
+			       inet6_ehash_secret + net_hash_mix(net));
 }
 
 static int inet6_sk_ehashfn(const struct sock *sk)
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 324bd36c23bc..44fc4e3d661f 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -59,10 +59,21 @@ static unsigned int udp6_ehashfn(struct net *net,
 				  const struct in6_addr *faddr,
 				  const __be16 fport)
 {
-	const u32 lhash = (__force u32)laddr->s6_addr32[3];
-	const u32 fhash = __ipv6_addr_jhash(faddr, ipv6_hash_secret);
+	static u32 udp6_ehash_secret __read_mostly;
+	static u32 udp_ipv6_hash_secret __read_mostly;
+
+	u32 lhash, fhash;
+
+	net_get_random_once(&udp6_ehash_secret,
+			    sizeof(udp6_ehash_secret));
+	net_get_random_once(&udp_ipv6_hash_secret,
+			    sizeof(udp_ipv6_hash_secret));
+
+	lhash = (__force u32)laddr->s6_addr32[3];
+	fhash = __ipv6_addr_jhash(faddr, udp_ipv6_hash_secret);
+
 	return __inet6_ehashfn(lhash, lport, fhash, fport,
-			       inet_ehash_secret + net_hash_mix(net));
+			       udp_ipv6_hash_secret + net_hash_mix(net));
 }
 
 int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
diff --git a/net/rds/connection.c b/net/rds/connection.c
index 45e23660437a..378c3a6acf84 100644
--- a/net/rds/connection.c
+++ b/net/rds/connection.c
@@ -51,10 +51,16 @@ static struct kmem_cache *rds_conn_slab;
 
 static struct hlist_head *rds_conn_bucket(__be32 laddr, __be32 faddr)
 {
+	static u32 rds_hash_secret __read_mostly;
+
+	unsigned long hash;
+
+	net_get_random_once(&rds_hash_secret, sizeof(rds_hash_secret));
+
 	/* Pass NULL, don't need struct net for hash */
-	unsigned long hash = __inet_ehashfn(be32_to_cpu(laddr), 0,
-					    be32_to_cpu(faddr), 0,
-					    inet_ehash_secret);
+	hash = __inet_ehashfn(be32_to_cpu(laddr), 0,
+			      be32_to_cpu(faddr), 0,
+			      rds_hash_secret);
 	return &rds_conn_hash[hash & RDS_CONNECTION_HASH_MASK];
 }
 
-- 
cgit 


From 222e83d2e0aecb6a5e8d42b1a8d51332a1eba960 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Sat, 19 Oct 2013 21:48:58 +0200
Subject: tcp: switch tcp_fastopen key generation to net_get_random_once

Changed key initialization of tcp_fastopen cookies to net_get_random_once.

If the user sets a custom key net_get_random_once must be called at
least once to ensure we don't overwrite the user provided key when the
first cookie is generated later on.

Cc: Yuchung Cheng <ycheng@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/tcp.h          |  2 +-
 net/ipv4/sysctl_net_ipv4.c |  5 +++++
 net/ipv4/tcp_fastopen.c    | 27 ++++++++++++++++-----------
 3 files changed, 22 insertions(+), 12 deletions(-)

diff --git a/include/net/tcp.h b/include/net/tcp.h
index f30326f1c92b..b12e29a76590 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1322,7 +1322,7 @@ extern struct tcp_fastopen_context __rcu *tcp_fastopen_ctx;
 int tcp_fastopen_reset_cipher(void *key, unsigned int len);
 void tcp_fastopen_cookie_gen(__be32 src, __be32 dst,
 			     struct tcp_fastopen_cookie *foc);
-
+void tcp_fastopen_init_key_once(bool publish);
 #define TCP_FASTOPEN_KEY_LENGTH 16
 
 /* Fastopen key context */
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index c08f096d46b5..4b161d5aba0b 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -274,6 +274,11 @@ static int proc_tcp_fastopen_key(struct ctl_table *ctl, int write,
 			ret = -EINVAL;
 			goto bad_key;
 		}
+		/* Generate a dummy secret but don't publish it. This
+		 * is needed so we don't regenerate a new key on the
+		 * first invocation of tcp_fastopen_cookie_gen
+		 */
+		tcp_fastopen_init_key_once(false);
 		tcp_fastopen_reset_cipher(user_key, TCP_FASTOPEN_KEY_LENGTH);
 	}
 
diff --git a/net/ipv4/tcp_fastopen.c b/net/ipv4/tcp_fastopen.c
index ab7bd35bb312..766032b4a6c3 100644
--- a/net/ipv4/tcp_fastopen.c
+++ b/net/ipv4/tcp_fastopen.c
@@ -14,6 +14,20 @@ struct tcp_fastopen_context __rcu *tcp_fastopen_ctx;
 
 static DEFINE_SPINLOCK(tcp_fastopen_ctx_lock);
 
+void tcp_fastopen_init_key_once(bool publish)
+{
+	static u8 key[TCP_FASTOPEN_KEY_LENGTH];
+
+	/* tcp_fastopen_reset_cipher publishes the new context
+	 * atomically, so we allow this race happening here.
+	 *
+	 * All call sites of tcp_fastopen_cookie_gen also check
+	 * for a valid cookie, so this is an acceptable risk.
+	 */
+	if (net_get_random_once(key, sizeof(key)) && publish)
+		tcp_fastopen_reset_cipher(key, sizeof(key));
+}
+
 static void tcp_fastopen_ctx_free(struct rcu_head *head)
 {
 	struct tcp_fastopen_context *ctx =
@@ -70,6 +84,8 @@ void tcp_fastopen_cookie_gen(__be32 src, __be32 dst,
 	__be32 path[4] = { src, dst, 0, 0 };
 	struct tcp_fastopen_context *ctx;
 
+	tcp_fastopen_init_key_once(true);
+
 	rcu_read_lock();
 	ctx = rcu_dereference(tcp_fastopen_ctx);
 	if (ctx) {
@@ -78,14 +94,3 @@ void tcp_fastopen_cookie_gen(__be32 src, __be32 dst,
 	}
 	rcu_read_unlock();
 }
-
-static int __init tcp_fastopen_init(void)
-{
-	__u8 key[TCP_FASTOPEN_KEY_LENGTH];
-
-	get_random_bytes(key, sizeof(key));
-	tcp_fastopen_reset_cipher(key, sizeof(key));
-	return 0;
-}
-
-late_initcall(tcp_fastopen_init);
-- 
cgit 


From e34c9a69970d8664a36b46e6445a7cc879111cfd Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Sat, 19 Oct 2013 21:48:59 +0200
Subject: net: switch net_secret key generation to net_get_random_once

Cc: Eric Dumazet <edumazet@google.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/secure_seq.c | 14 ++------------
 1 file changed, 2 insertions(+), 12 deletions(-)

diff --git a/net/core/secure_seq.c b/net/core/secure_seq.c
index 3f1ec1586ae1..b02fd16b8942 100644
--- a/net/core/secure_seq.c
+++ b/net/core/secure_seq.c
@@ -7,6 +7,7 @@
 #include <linux/hrtimer.h>
 #include <linux/ktime.h>
 #include <linux/string.h>
+#include <linux/net.h>
 
 #include <net/secure_seq.h>
 
@@ -16,18 +17,7 @@ static u32 net_secret[NET_SECRET_SIZE] ____cacheline_aligned;
 
 static void net_secret_init(void)
 {
-	u32 tmp;
-	int i;
-
-	if (likely(net_secret[0]))
-		return;
-
-	for (i = NET_SECRET_SIZE; i > 0;) {
-		do {
-			get_random_bytes(&tmp, sizeof(tmp));
-		} while (!tmp);
-		cmpxchg(&net_secret[--i], 0, tmp);
-	}
+	net_get_random_once(net_secret, sizeof(net_secret));
 }
 
 #ifdef CONFIG_INET
-- 
cgit 


From 991fc259361eb812ebf6c4527343d60ab4b2e1a6 Mon Sep 17 00:00:00 2001
From: Soren Brinkmann <soren.brinkmann@xilinx.com>
Date: Thu, 17 Oct 2013 14:08:04 -0700
Subject: tty: xuartps: Use devm_clk_get()

Use the device managed interface for clocks, simplifying error paths.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/xilinx_uartps.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 7e4150aa69c6..103ba8826d06 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -953,23 +953,23 @@ static int xuartps_probe(struct platform_device *pdev)
 	if (!xuartps_data)
 		return -ENOMEM;
 
-	xuartps_data->aperclk = clk_get(&pdev->dev, "aper_clk");
+	xuartps_data->aperclk = devm_clk_get(&pdev->dev, "aper_clk");
 	if (IS_ERR(xuartps_data->aperclk)) {
 		dev_err(&pdev->dev, "aper_clk clock not found.\n");
 		rc = PTR_ERR(xuartps_data->aperclk);
 		goto err_out_free;
 	}
-	xuartps_data->refclk = clk_get(&pdev->dev, "ref_clk");
+	xuartps_data->refclk = devm_clk_get(&pdev->dev, "ref_clk");
 	if (IS_ERR(xuartps_data->refclk)) {
 		dev_err(&pdev->dev, "ref_clk clock not found.\n");
 		rc = PTR_ERR(xuartps_data->refclk);
-		goto err_out_clk_put_aper;
+		goto err_out_free;
 	}
 
 	rc = clk_prepare_enable(xuartps_data->aperclk);
 	if (rc) {
 		dev_err(&pdev->dev, "Unable to enable APER clock.\n");
-		goto err_out_clk_put;
+		goto err_out_free;
 	}
 	rc = clk_prepare_enable(xuartps_data->refclk);
 	if (rc) {
@@ -1020,10 +1020,6 @@ err_out_clk_disable:
 	clk_disable_unprepare(xuartps_data->refclk);
 err_out_clk_dis_aper:
 	clk_disable_unprepare(xuartps_data->aperclk);
-err_out_clk_put:
-	clk_put(xuartps_data->refclk);
-err_out_clk_put_aper:
-	clk_put(xuartps_data->aperclk);
 err_out_free:
 	kfree(xuartps_data);
 
@@ -1047,8 +1043,6 @@ static int xuartps_remove(struct platform_device *pdev)
 	port->mapbase = 0;
 	clk_disable_unprepare(xuartps_data->refclk);
 	clk_disable_unprepare(xuartps_data->aperclk);
-	clk_put(xuartps_data->refclk);
-	clk_put(xuartps_data->aperclk);
 	kfree(xuartps_data);
 	return rc;
 }
-- 
cgit 


From c03cae1791407f4f4f9bc6b0354ecaeb50df787f Mon Sep 17 00:00:00 2001
From: Soren Brinkmann <soren.brinkmann@xilinx.com>
Date: Thu, 17 Oct 2013 14:08:05 -0700
Subject: tty: xuartps: Use devm_kzalloc

Use the device managed interface for memory allocation, simplifying
error paths.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/xilinx_uartps.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 103ba8826d06..8c0745951605 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -949,27 +949,26 @@ static int xuartps_probe(struct platform_device *pdev)
 	struct resource *res, *res2;
 	struct xuartps *xuartps_data;
 
-	xuartps_data = kzalloc(sizeof(*xuartps_data), GFP_KERNEL);
+	xuartps_data = devm_kzalloc(&pdev->dev, sizeof(*xuartps_data),
+			GFP_KERNEL);
 	if (!xuartps_data)
 		return -ENOMEM;
 
 	xuartps_data->aperclk = devm_clk_get(&pdev->dev, "aper_clk");
 	if (IS_ERR(xuartps_data->aperclk)) {
 		dev_err(&pdev->dev, "aper_clk clock not found.\n");
-		rc = PTR_ERR(xuartps_data->aperclk);
-		goto err_out_free;
+		return PTR_ERR(xuartps_data->aperclk);
 	}
 	xuartps_data->refclk = devm_clk_get(&pdev->dev, "ref_clk");
 	if (IS_ERR(xuartps_data->refclk)) {
 		dev_err(&pdev->dev, "ref_clk clock not found.\n");
-		rc = PTR_ERR(xuartps_data->refclk);
-		goto err_out_free;
+		return PTR_ERR(xuartps_data->refclk);
 	}
 
 	rc = clk_prepare_enable(xuartps_data->aperclk);
 	if (rc) {
 		dev_err(&pdev->dev, "Unable to enable APER clock.\n");
-		goto err_out_free;
+		return rc;
 	}
 	rc = clk_prepare_enable(xuartps_data->refclk);
 	if (rc) {
@@ -1020,8 +1019,6 @@ err_out_clk_disable:
 	clk_disable_unprepare(xuartps_data->refclk);
 err_out_clk_dis_aper:
 	clk_disable_unprepare(xuartps_data->aperclk);
-err_out_free:
-	kfree(xuartps_data);
 
 	return rc;
 }
@@ -1043,7 +1040,6 @@ static int xuartps_remove(struct platform_device *pdev)
 	port->mapbase = 0;
 	clk_disable_unprepare(xuartps_data->refclk);
 	clk_disable_unprepare(xuartps_data->aperclk);
-	kfree(xuartps_data);
 	return rc;
 }
 
-- 
cgit 


From 0c0c47bc40a2e358d593b2d7fb93b50027fbfc0c Mon Sep 17 00:00:00 2001
From: Vlad Lungu <vlad.lungu@windriver.com>
Date: Thu, 17 Oct 2013 14:08:06 -0700
Subject: tty: xuartps: Implement BREAK detection, add SYSRQ support

The Cadence UART does not do break detection, even if the
datasheet says it does. This patch adds break detection in
software (tested in 8N1 mode only) and enables SYSRQ,
allowing for Break-g to enter KDB and all the other goodies.

Signed-off-by: Vlad Lungu <vlad.lungu@windriver.com>
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/xilinx_uartps.c | 50 +++++++++++++++++++++++++++++++++++++-
 1 file changed, 49 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 8c0745951605..5d5557af4d22 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -11,13 +11,17 @@
  *
  */
 
+#if defined(CONFIG_SERIAL_XILINX_PS_UART_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
+#define SUPPORT_SYSRQ
+#endif
+
 #include <linux/platform_device.h>
 #include <linux/serial.h>
+#include <linux/console.h>
 #include <linux/serial_core.h>
 #include <linux/slab.h>
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
-#include <linux/console.h>
 #include <linux/clk.h>
 #include <linux/irq.h>
 #include <linux/io.h>
@@ -128,6 +132,9 @@
 #define XUARTPS_IXR_RXEMPTY	0x00000002 /* RX FIFO empty interrupt. */
 #define XUARTPS_IXR_MASK	0x00001FFF /* Valid bit mask */
 
+/* Goes in read_status_mask for break detection as the HW doesn't do it*/
+#define XUARTPS_IXR_BRK		0x80000000
+
 /** Channel Status Register
  *
  * The channel status register (CSR) is provided to enable the control logic
@@ -171,6 +178,23 @@ static irqreturn_t xuartps_isr(int irq, void *dev_id)
 	 */
 	isrstatus = xuartps_readl(XUARTPS_ISR_OFFSET);
 
+	/*
+	 * There is no hardware break detection, so we interpret framing
+	 * error with all-zeros data as a break sequence. Most of the time,
+	 * there's another non-zero byte at the end of the sequence.
+	 */
+
+	if (isrstatus & XUARTPS_IXR_FRAMING) {
+		while (!(xuartps_readl(XUARTPS_SR_OFFSET) &
+					XUARTPS_SR_RXEMPTY)) {
+			if (!xuartps_readl(XUARTPS_FIFO_OFFSET)) {
+				port->read_status_mask |= XUARTPS_IXR_BRK;
+				isrstatus &= ~XUARTPS_IXR_FRAMING;
+			}
+		}
+		xuartps_writel(XUARTPS_IXR_FRAMING, XUARTPS_ISR_OFFSET);
+	}
+
 	/* drop byte with parity error if IGNPAR specified */
 	if (isrstatus & port->ignore_status_mask & XUARTPS_IXR_PARITY)
 		isrstatus &= ~(XUARTPS_IXR_RXTRIG | XUARTPS_IXR_TOUT);
@@ -184,6 +208,30 @@ static irqreturn_t xuartps_isr(int irq, void *dev_id)
 		while ((xuartps_readl(XUARTPS_SR_OFFSET) &
 			XUARTPS_SR_RXEMPTY) != XUARTPS_SR_RXEMPTY) {
 			data = xuartps_readl(XUARTPS_FIFO_OFFSET);
+
+			/* Non-NULL byte after BREAK is garbage (99%) */
+			if (data && (port->read_status_mask &
+						XUARTPS_IXR_BRK)) {
+				port->read_status_mask &= ~XUARTPS_IXR_BRK;
+				port->icount.brk++;
+				if (uart_handle_break(port))
+					continue;
+			}
+
+			/*
+			 * uart_handle_sysrq_char() doesn't work if
+			 * spinlocked, for some reason
+			 */
+			 if (port->sysrq) {
+				spin_unlock(&port->lock);
+				if (uart_handle_sysrq_char(port,
+							(unsigned char)data)) {
+					spin_lock(&port->lock);
+					continue;
+				}
+				spin_lock(&port->lock);
+			}
+
 			port->icount.rx++;
 
 			if (isrstatus & XUARTPS_IXR_PARITY) {
-- 
cgit 


From 6ee04c6c5488b2b7fdfa22c771c127411f86e610 Mon Sep 17 00:00:00 2001
From: Vlad Lungu <vlad.lungu@windriver.com>
Date: Thu, 17 Oct 2013 14:08:07 -0700
Subject: tty: xuartps: Add polled mode support for xuartps

This allows KDB/KGDB to run.

Signed-off-by: Vlad Lungu <vlad.lungu@windriver.com>
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/xilinx_uartps.c | 52 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 5d5557af4d22..62259f37ddda 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -775,6 +775,54 @@ static void xuartps_enable_ms(struct uart_port *port)
 	/* N/A */
 }
 
+#ifdef CONFIG_CONSOLE_POLL
+static int xuartps_poll_get_char(struct uart_port *port)
+{
+	u32 imr;
+	int c;
+
+	/* Disable all interrupts */
+	imr = xuartps_readl(XUARTPS_IMR_OFFSET);
+	xuartps_writel(imr, XUARTPS_IDR_OFFSET);
+
+	/* Check if FIFO is empty */
+	if (xuartps_readl(XUARTPS_SR_OFFSET) & XUARTPS_SR_RXEMPTY)
+		c = NO_POLL_CHAR;
+	else /* Read a character */
+		c = (unsigned char) xuartps_readl(XUARTPS_FIFO_OFFSET);
+
+	/* Enable interrupts */
+	xuartps_writel(imr, XUARTPS_IER_OFFSET);
+
+	return c;
+}
+
+static void xuartps_poll_put_char(struct uart_port *port, unsigned char c)
+{
+	u32 imr;
+
+	/* Disable all interrupts */
+	imr = xuartps_readl(XUARTPS_IMR_OFFSET);
+	xuartps_writel(imr, XUARTPS_IDR_OFFSET);
+
+	/* Wait until FIFO is empty */
+	while (!(xuartps_readl(XUARTPS_SR_OFFSET) & XUARTPS_SR_TXEMPTY))
+		cpu_relax();
+
+	/* Write a character */
+	xuartps_writel(c, XUARTPS_FIFO_OFFSET);
+
+	/* Wait until FIFO is empty */
+	while (!(xuartps_readl(XUARTPS_SR_OFFSET) & XUARTPS_SR_TXEMPTY))
+		cpu_relax();
+
+	/* Enable interrupts */
+	xuartps_writel(imr, XUARTPS_IER_OFFSET);
+
+	return;
+}
+#endif
+
 /** The UART operations structure
  */
 static struct uart_ops xuartps_ops = {
@@ -807,6 +855,10 @@ static struct uart_ops xuartps_ops = {
 	.config_port	= xuartps_config_port,	/* Configure when driver
 						 * adds a xuartps port
 						 */
+#ifdef CONFIG_CONSOLE_POLL
+	.poll_get_char	= xuartps_poll_get_char,
+	.poll_put_char	= xuartps_poll_put_char,
+#endif
 };
 
 static struct uart_port xuartps_port[2];
-- 
cgit 


From 85baf542d54ec321642194b0ebfa7316e3190dc2 Mon Sep 17 00:00:00 2001
From: Suneel <suneelg@xilinx.com>
Date: Thu, 17 Oct 2013 14:08:08 -0700
Subject: tty: xuartps: support 64 byte FIFO size

Changes to use the 64 byte FIFO depth and fix the issue
by clearing the txempty interrupt in isr status for tx
after filling in data in start_tx function

Signed-off-by: Suneel Garapati <suneelg@xilinx.com>
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/xilinx_uartps.c | 30 +++++++++++++++++++++++-------
 1 file changed, 23 insertions(+), 7 deletions(-)

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 62259f37ddda..6e8ec6e9d5a2 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -33,12 +33,22 @@
 #define XUARTPS_MAJOR		0	/* use dynamic node allocation */
 #define XUARTPS_MINOR		0	/* works best with devtmpfs */
 #define XUARTPS_NR_PORTS	2
-#define XUARTPS_FIFO_SIZE	16	/* FIFO size */
+#define XUARTPS_FIFO_SIZE	64	/* FIFO size */
 #define XUARTPS_REGISTER_SPACE	0xFFF
 
 #define xuartps_readl(offset)		ioread32(port->membase + offset)
 #define xuartps_writel(val, offset)	iowrite32(val, port->membase + offset)
 
+/* Rx Trigger level */
+static int rx_trigger_level = 56;
+module_param(rx_trigger_level, uint, S_IRUGO);
+MODULE_PARM_DESC(rx_trigger_level, "Rx trigger level, 1-63 bytes");
+
+/* Rx Timeout */
+static int rx_timeout = 10;
+module_param(rx_timeout, uint, S_IRUGO);
+MODULE_PARM_DESC(rx_timeout, "Rx timeout, 1-255");
+
 /********************************Register Map********************************/
 /** UART
  *
@@ -394,7 +404,7 @@ static void xuartps_start_tx(struct uart_port *port)
 		port->state->xmit.tail = (port->state->xmit.tail + 1) &
 					(UART_XMIT_SIZE - 1);
 	}
-
+	xuartps_writel(XUARTPS_IXR_TXEMPTY, XUARTPS_ISR_OFFSET);
 	/* Enable the TX Empty interrupt */
 	xuartps_writel(XUARTPS_IXR_TXEMPTY, XUARTPS_IER_OFFSET);
 
@@ -528,7 +538,7 @@ static void xuartps_set_termios(struct uart_port *port,
 			| (XUARTPS_CR_TX_EN | XUARTPS_CR_RX_EN),
 			XUARTPS_CR_OFFSET);
 
-	xuartps_writel(10, XUARTPS_RXTOUT_OFFSET);
+	xuartps_writel(rx_timeout, XUARTPS_RXTOUT_OFFSET);
 
 	port->read_status_mask = XUARTPS_IXR_TXEMPTY | XUARTPS_IXR_RXTRIG |
 			XUARTPS_IXR_OVERRUN | XUARTPS_IXR_TOUT;
@@ -631,11 +641,17 @@ static int xuartps_startup(struct uart_port *port)
 		| XUARTPS_MR_PARITY_NONE | XUARTPS_MR_CHARLEN_8_BIT,
 		 XUARTPS_MR_OFFSET);
 
-	/* Set the RX FIFO Trigger level to 14 assuming FIFO size as 16 */
-	xuartps_writel(14, XUARTPS_RXWM_OFFSET);
+	/*
+	 * Set the RX FIFO Trigger level to use most of the FIFO, but it
+	 * can be tuned with a module parameter
+	 */
+	xuartps_writel(rx_trigger_level, XUARTPS_RXWM_OFFSET);
 
-	/* Receive Timeout register is enabled with value of 10 */
-	xuartps_writel(10, XUARTPS_RXTOUT_OFFSET);
+	/*
+	 * Receive Timeout register is enabled but it
+	 * can be tuned with a module parameter
+	 */
+	xuartps_writel(rx_timeout, XUARTPS_RXTOUT_OFFSET);
 
 	/* Clear out any pending interrupts before enabling them */
 	xuartps_writel(xuartps_readl(XUARTPS_ISR_OFFSET), XUARTPS_ISR_OFFSET);
-- 
cgit 


From d3755f5e6cd222cd5aff949228d32aa8446023a5 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 17 Oct 2013 14:08:09 -0700
Subject: tty: xuartps: Force enable the UART in xuartps_console_write

It is possible that under certain circumstances xuartps_console_write is entered
while the UART disabled. When this happens the code will busy loop in
xuartps_console_putchar, since the character is never written and the TXEMPTY
flag is never set. The result is a system lockup. This patch force enables the
UART for the duration of xuartps_console_write to avoid this.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: John Linn <john.linn@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/xilinx_uartps.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 6e8ec6e9d5a2..fdc739b55eb3 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -953,7 +953,7 @@ static void xuartps_console_write(struct console *co, const char *s,
 {
 	struct uart_port *port = &xuartps_port[co->index];
 	unsigned long flags;
-	unsigned int imr;
+	unsigned int imr, ctrl;
 	int locked = 1;
 
 	if (oops_in_progress)
@@ -965,9 +965,19 @@ static void xuartps_console_write(struct console *co, const char *s,
 	imr = xuartps_readl(XUARTPS_IMR_OFFSET);
 	xuartps_writel(imr, XUARTPS_IDR_OFFSET);
 
+	/*
+	 * Make sure that the tx part is enabled. Set the TX enable bit and
+	 * clear the TX disable bit to enable the transmitter.
+	 */
+	ctrl = xuartps_readl(XUARTPS_CR_OFFSET);
+	xuartps_writel((ctrl & ~XUARTPS_CR_TX_DIS) | XUARTPS_CR_TX_EN,
+		XUARTPS_CR_OFFSET);
+
 	uart_console_write(port, s, count, xuartps_console_putchar);
 	xuartps_console_wait_tx(port);
 
+	xuartps_writel(ctrl, XUARTPS_CR_OFFSET);
+
 	/* restore interrupt state, it seems like there may be a h/w bug
 	 * in that the interrupt enable register should not need to be
 	 * written based on the data sheet
-- 
cgit 


From e6b39bfd0db207d2e9f3f78468d18f529f3b7901 Mon Sep 17 00:00:00 2001
From: Soren Brinkmann <soren.brinkmann@xilinx.com>
Date: Thu, 17 Oct 2013 14:08:10 -0700
Subject: tty: xuartps: Updating set_baud_rate()

The original algorithm to find the best baud rate dividers does not necessarily
find the best set of dividers. And in the worst case may even write illegal
values to the hardware.
The new function should make better use of the hardware capabilities and be able
to provide valid settings for a wider range of baud rates and also input clocks.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/xilinx_uartps.c | 136 +++++++++++++++++++++++++------------
 1 file changed, 93 insertions(+), 43 deletions(-)

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index fdc739b55eb3..95e12c216984 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -156,6 +156,11 @@ MODULE_PARM_DESC(rx_timeout, "Rx timeout, 1-255");
 #define XUARTPS_SR_TXFULL	0x00000010 /* TX FIFO full */
 #define XUARTPS_SR_RXTRIG	0x00000001 /* Rx Trigger */
 
+/* baud dividers min/max values */
+#define XUARTPS_BDIV_MIN	4
+#define XUARTPS_BDIV_MAX	255
+#define XUARTPS_CD_MAX		65535
+
 /**
  * struct xuartps - device data
  * @refclk	Reference clock
@@ -305,59 +310,94 @@ static irqreturn_t xuartps_isr(int irq, void *dev_id)
 }
 
 /**
- * xuartps_set_baud_rate - Calculate and set the baud rate
- * @port: Handle to the uart port structure
- * @baud: Baud rate to set
- *
+ * xuartps_calc_baud_divs - Calculate baud rate divisors
+ * @clk: UART module input clock
+ * @baud: Desired baud rate
+ * @rbdiv: BDIV value (return value)
+ * @rcd: CD value (return value)
+ * @div8: Value for clk_sel bit in mod (return value)
  * Returns baud rate, requested baud when possible, or actual baud when there
- *	was too much error
- **/
-static unsigned int xuartps_set_baud_rate(struct uart_port *port,
-						unsigned int baud)
+ *	was too much error, zero if no valid divisors are found.
+ *
+ * Formula to obtain baud rate is
+ *	baud_tx/rx rate = clk/CD * (BDIV + 1)
+ *	input_clk = (Uart User Defined Clock or Apb Clock)
+ *		depends on UCLKEN in MR Reg
+ *	clk = input_clk or input_clk/8;
+ *		depends on CLKS in MR reg
+ *	CD and BDIV depends on values in
+ *			baud rate generate register
+ *			baud rate clock divisor register
+ */
+static unsigned int xuartps_calc_baud_divs(unsigned int clk, unsigned int baud,
+		u32 *rbdiv, u32 *rcd, int *div8)
 {
-	unsigned int sel_clk;
-	unsigned int calc_baud = 0;
-	unsigned int brgr_val, brdiv_val;
+	u32 cd, bdiv;
+	unsigned int calc_baud;
+	unsigned int bestbaud = 0;
 	unsigned int bauderror;
+	unsigned int besterror = ~0;
 
-	/* Formula to obtain baud rate is
-	 *	baud_tx/rx rate = sel_clk/CD * (BDIV + 1)
-	 *	input_clk = (Uart User Defined Clock or Apb Clock)
-	 *		depends on UCLKEN in MR Reg
-	 *	sel_clk = input_clk or input_clk/8;
-	 *		depends on CLKS in MR reg
-	 *	CD and BDIV depends on values in
-	 *			baud rate generate register
-	 *			baud rate clock divisor register
-	 */
-	sel_clk = port->uartclk;
-	if (xuartps_readl(XUARTPS_MR_OFFSET) & XUARTPS_MR_CLKSEL)
-		sel_clk = sel_clk / 8;
-
-	/* Find the best values for baud generation */
-	for (brdiv_val = 4; brdiv_val < 255; brdiv_val++) {
+	if (baud < clk / ((XUARTPS_BDIV_MAX + 1) * XUARTPS_CD_MAX)) {
+		*div8 = 1;
+		clk /= 8;
+	} else {
+		*div8 = 0;
+	}
 
-		brgr_val = sel_clk / (baud * (brdiv_val + 1));
-		if (brgr_val < 2 || brgr_val > 65535)
+	for (bdiv = XUARTPS_BDIV_MIN; bdiv <= XUARTPS_BDIV_MAX; bdiv++) {
+		cd = DIV_ROUND_CLOSEST(clk, baud * (bdiv + 1));
+		if (cd < 1 || cd > XUARTPS_CD_MAX)
 			continue;
 
-		calc_baud = sel_clk / (brgr_val * (brdiv_val + 1));
+		calc_baud = clk / (cd * (bdiv + 1));
 
 		if (baud > calc_baud)
 			bauderror = baud - calc_baud;
 		else
 			bauderror = calc_baud - baud;
 
-		/* use the values when percent error is acceptable */
-		if (((bauderror * 100) / baud) < 3) {
-			calc_baud = baud;
-			break;
+		if (besterror > bauderror) {
+			*rbdiv = bdiv;
+			*rcd = cd;
+			bestbaud = calc_baud;
+			besterror = bauderror;
 		}
 	}
+	/* use the values when percent error is acceptable */
+	if (((besterror * 100) / baud) < 3)
+		bestbaud = baud;
+
+	return bestbaud;
+}
 
-	/* Set the values for the new baud rate */
-	xuartps_writel(brgr_val, XUARTPS_BAUDGEN_OFFSET);
-	xuartps_writel(brdiv_val, XUARTPS_BAUDDIV_OFFSET);
+/**
+ * xuartps_set_baud_rate - Calculate and set the baud rate
+ * @port: Handle to the uart port structure
+ * @baud: Baud rate to set
+ * Returns baud rate, requested baud when possible, or actual baud when there
+ *	   was too much error, zero if no valid divisors are found.
+ */
+static unsigned int xuartps_set_baud_rate(struct uart_port *port,
+		unsigned int baud)
+{
+	unsigned int calc_baud;
+	u32 cd, bdiv;
+	u32 mreg;
+	int div8;
+
+	calc_baud = xuartps_calc_baud_divs(port->uartclk, baud, &bdiv, &cd,
+			&div8);
+
+	/* Write new divisors to hardware */
+	mreg = xuartps_readl(XUARTPS_MR_OFFSET);
+	if (div8)
+		mreg |= XUARTPS_MR_CLKSEL;
+	else
+		mreg &= ~XUARTPS_MR_CLKSEL;
+	xuartps_writel(mreg, XUARTPS_MR_OFFSET);
+	xuartps_writel(cd, XUARTPS_BAUDGEN_OFFSET);
+	xuartps_writel(bdiv, XUARTPS_BAUDDIV_OFFSET);
 
 	return calc_baud;
 }
@@ -495,7 +535,7 @@ static void xuartps_set_termios(struct uart_port *port,
 				struct ktermios *termios, struct ktermios *old)
 {
 	unsigned int cval = 0;
-	unsigned int baud;
+	unsigned int baud, minbaud, maxbaud;
 	unsigned long flags;
 	unsigned int ctrl_reg, mode_reg;
 
@@ -512,8 +552,14 @@ static void xuartps_set_termios(struct uart_port *port,
 			(XUARTPS_CR_TX_DIS | XUARTPS_CR_RX_DIS),
 			XUARTPS_CR_OFFSET);
 
-	/* Min baud rate = 6bps and Max Baud Rate is 10Mbps for 100Mhz clk */
-	baud = uart_get_baud_rate(port, termios, old, 0, 10000000);
+	/*
+	 * Min baud rate = 6bps and Max Baud Rate is 10Mbps for 100Mhz clk
+	 * min and max baud should be calculated here based on port->uartclk.
+	 * this way we get a valid baud and can safely call set_baud()
+	 */
+	minbaud = port->uartclk / ((XUARTPS_BDIV_MAX + 1) * XUARTPS_CD_MAX * 8);
+	maxbaud = port->uartclk / (XUARTPS_BDIV_MIN + 1);
+	baud = uart_get_baud_rate(port, termios, old, minbaud, maxbaud);
 	baud = xuartps_set_baud_rate(port, baud);
 	if (tty_termios_baud_rate(termios))
 		tty_termios_encode_baud_rate(termios, baud, baud);
@@ -589,13 +635,17 @@ static void xuartps_set_termios(struct uart_port *port,
 				cval |= XUARTPS_MR_PARITY_MARK;
 			else
 				cval |= XUARTPS_MR_PARITY_SPACE;
-		} else if (termios->c_cflag & PARODD)
+		} else {
+			if (termios->c_cflag & PARODD)
 				cval |= XUARTPS_MR_PARITY_ODD;
 			else
 				cval |= XUARTPS_MR_PARITY_EVEN;
-	} else
+		}
+	} else {
 		cval |= XUARTPS_MR_PARITY_NONE;
-	xuartps_writel(cval , XUARTPS_MR_OFFSET);
+	}
+	cval |= mode_reg & 1;
+	xuartps_writel(cval, XUARTPS_MR_OFFSET);
 
 	spin_unlock_irqrestore(&port->lock, flags);
 }
-- 
cgit 


From c4b0510cc1571ff44e1d6024d92683d49a8bcfde Mon Sep 17 00:00:00 2001
From: Soren Brinkmann <soren.brinkmann@xilinx.com>
Date: Thu, 17 Oct 2013 14:08:11 -0700
Subject: tty: xuartps: Dynamically adjust to input frequency changes

Add a clock notifier to dynamically handle frequency changes of the
input clock by reprogramming the UART in order to keep the baud rate
constant.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/xilinx_uartps.c | 123 +++++++++++++++++++++++++++++++++++--
 1 file changed, 119 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 95e12c216984..82195040e906 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -163,13 +163,20 @@ MODULE_PARM_DESC(rx_timeout, "Rx timeout, 1-255");
 
 /**
  * struct xuartps - device data
- * @refclk	Reference clock
- * @aperclk	APB clock
+ * @port		Pointer to the UART port
+ * @refclk		Reference clock
+ * @aperclk		APB clock
+ * @baud		Current baud rate
+ * @clk_rate_change_nb	Notifier block for clock changes
  */
 struct xuartps {
+	struct uart_port	*port;
 	struct clk		*refclk;
 	struct clk		*aperclk;
+	unsigned int		baud;
+	struct notifier_block	clk_rate_change_nb;
 };
+#define to_xuartps(_nb) container_of(_nb, struct xuartps, clk_rate_change_nb);
 
 /**
  * xuartps_isr - Interrupt handler
@@ -385,6 +392,7 @@ static unsigned int xuartps_set_baud_rate(struct uart_port *port,
 	u32 cd, bdiv;
 	u32 mreg;
 	int div8;
+	struct xuartps *xuartps = port->private_data;
 
 	calc_baud = xuartps_calc_baud_divs(port->uartclk, baud, &bdiv, &cd,
 			&div8);
@@ -398,10 +406,105 @@ static unsigned int xuartps_set_baud_rate(struct uart_port *port,
 	xuartps_writel(mreg, XUARTPS_MR_OFFSET);
 	xuartps_writel(cd, XUARTPS_BAUDGEN_OFFSET);
 	xuartps_writel(bdiv, XUARTPS_BAUDDIV_OFFSET);
+	xuartps->baud = baud;
 
 	return calc_baud;
 }
 
+/**
+ * xuartps_clk_notitifer_cb - Clock notifier callback
+ * @nb:		Notifier block
+ * @event:	Notify event
+ * @data:	Notifier data
+ * Returns NOTIFY_OK on success, NOTIFY_BAD on error.
+ */
+static int xuartps_clk_notifier_cb(struct notifier_block *nb,
+		unsigned long event, void *data)
+{
+	u32 ctrl_reg;
+	struct uart_port *port;
+	int locked = 0;
+	struct clk_notifier_data *ndata = data;
+	unsigned long flags = 0;
+	struct xuartps *xuartps = to_xuartps(nb);
+
+	port = xuartps->port;
+	if (port->suspended)
+		return NOTIFY_OK;
+
+	switch (event) {
+	case PRE_RATE_CHANGE:
+	{
+		u32 bdiv;
+		u32 cd;
+		int div8;
+
+		/*
+		 * Find out if current baud-rate can be achieved with new clock
+		 * frequency.
+		 */
+		if (!xuartps_calc_baud_divs(ndata->new_rate, xuartps->baud,
+					&bdiv, &cd, &div8))
+			return NOTIFY_BAD;
+
+		spin_lock_irqsave(&xuartps->port->lock, flags);
+
+		/* Disable the TX and RX to set baud rate */
+		xuartps_writel(xuartps_readl(XUARTPS_CR_OFFSET) |
+				(XUARTPS_CR_TX_DIS | XUARTPS_CR_RX_DIS),
+				XUARTPS_CR_OFFSET);
+
+		spin_unlock_irqrestore(&xuartps->port->lock, flags);
+
+		return NOTIFY_OK;
+	}
+	case POST_RATE_CHANGE:
+		/*
+		 * Set clk dividers to generate correct baud with new clock
+		 * frequency.
+		 */
+
+		spin_lock_irqsave(&xuartps->port->lock, flags);
+
+		locked = 1;
+		port->uartclk = ndata->new_rate;
+
+		xuartps->baud = xuartps_set_baud_rate(xuartps->port,
+				xuartps->baud);
+		/* fall through */
+	case ABORT_RATE_CHANGE:
+		if (!locked)
+			spin_lock_irqsave(&xuartps->port->lock, flags);
+
+		/* Set TX/RX Reset */
+		xuartps_writel(xuartps_readl(XUARTPS_CR_OFFSET) |
+				(XUARTPS_CR_TXRST | XUARTPS_CR_RXRST),
+				XUARTPS_CR_OFFSET);
+
+		while (xuartps_readl(XUARTPS_CR_OFFSET) &
+				(XUARTPS_CR_TXRST | XUARTPS_CR_RXRST))
+			cpu_relax();
+
+		/*
+		 * Clear the RX disable and TX disable bits and then set the TX
+		 * enable bit and RX enable bit to enable the transmitter and
+		 * receiver.
+		 */
+		xuartps_writel(rx_timeout, XUARTPS_RXTOUT_OFFSET);
+		ctrl_reg = xuartps_readl(XUARTPS_CR_OFFSET);
+		xuartps_writel(
+			(ctrl_reg & ~(XUARTPS_CR_TX_DIS | XUARTPS_CR_RX_DIS)) |
+			(XUARTPS_CR_TX_EN | XUARTPS_CR_RX_EN),
+			XUARTPS_CR_OFFSET);
+
+		spin_unlock_irqrestore(&xuartps->port->lock, flags);
+
+		return NOTIFY_OK;
+	default:
+		return NOTIFY_DONE;
+	}
+}
+
 /*----------------------Uart Operations---------------------------*/
 
 /**
@@ -1164,13 +1267,19 @@ static int xuartps_probe(struct platform_device *pdev)
 		goto err_out_clk_disable;
 	}
 
+	xuartps_data->clk_rate_change_nb.notifier_call =
+			xuartps_clk_notifier_cb;
+	if (clk_notifier_register(xuartps_data->refclk,
+				&xuartps_data->clk_rate_change_nb))
+		dev_warn(&pdev->dev, "Unable to register clock notifier.\n");
+
 	/* Initialize the port structure */
 	port = xuartps_get_port();
 
 	if (!port) {
 		dev_err(&pdev->dev, "Cannot get uart_port structure\n");
 		rc = -ENODEV;
-		goto err_out_clk_disable;
+		goto err_out_notif_unreg;
 	} else {
 		/* Register the port.
 		 * This function also registers this device with the tty layer
@@ -1181,16 +1290,20 @@ static int xuartps_probe(struct platform_device *pdev)
 		port->dev = &pdev->dev;
 		port->uartclk = clk_get_rate(xuartps_data->refclk);
 		port->private_data = xuartps_data;
+		xuartps_data->port = port;
 		platform_set_drvdata(pdev, port);
 		rc = uart_add_one_port(&xuartps_uart_driver, port);
 		if (rc) {
 			dev_err(&pdev->dev,
 				"uart_add_one_port() failed; err=%i\n", rc);
-			goto err_out_clk_disable;
+			goto err_out_notif_unreg;
 		}
 		return 0;
 	}
 
+err_out_notif_unreg:
+	clk_notifier_unregister(xuartps_data->refclk,
+			&xuartps_data->clk_rate_change_nb);
 err_out_clk_disable:
 	clk_disable_unprepare(xuartps_data->refclk);
 err_out_clk_dis_aper:
@@ -1212,6 +1325,8 @@ static int xuartps_remove(struct platform_device *pdev)
 	int rc;
 
 	/* Remove the xuartps port from the serial core */
+	clk_notifier_unregister(xuartps_data->refclk,
+			&xuartps_data->clk_rate_change_nb);
 	rc = uart_remove_one_port(&xuartps_uart_driver, port);
 	port->mapbase = 0;
 	clk_disable_unprepare(xuartps_data->refclk);
-- 
cgit 


From 4b47d9aa1e3b54b73f9399f3d64b47495cc67a1e Mon Sep 17 00:00:00 2001
From: Soren Brinkmann <soren.brinkmann@xilinx.com>
Date: Thu, 17 Oct 2013 14:08:12 -0700
Subject: tty: xuartps: Implement suspend/resume callbacks

Implement suspend and resume callbacks in order to support system
suspend/hibernation.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/xilinx_uartps.c | 114 +++++++++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 82195040e906..9ecd8ea4f3ae 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -1198,6 +1198,119 @@ console_initcall(xuartps_console_init);
 
 #endif /* CONFIG_SERIAL_XILINX_PS_UART_CONSOLE */
 
+#ifdef CONFIG_PM_SLEEP
+/**
+ * xuartps_suspend - suspend event
+ * @device: Pointer to the device structure
+ *
+ * Returns 0
+ */
+static int xuartps_suspend(struct device *device)
+{
+	struct uart_port *port = dev_get_drvdata(device);
+	struct tty_struct *tty;
+	struct device *tty_dev;
+	int may_wake = 0;
+
+	/* Get the tty which could be NULL so don't assume it's valid */
+	tty = tty_port_tty_get(&port->state->port);
+	if (tty) {
+		tty_dev = tty->dev;
+		may_wake = device_may_wakeup(tty_dev);
+		tty_kref_put(tty);
+	}
+
+	/*
+	 * Call the API provided in serial_core.c file which handles
+	 * the suspend.
+	 */
+	uart_suspend_port(&xuartps_uart_driver, port);
+	if (console_suspend_enabled && !may_wake) {
+		struct xuartps *xuartps = port->private_data;
+
+		clk_disable(xuartps->refclk);
+		clk_disable(xuartps->aperclk);
+	} else {
+		unsigned long flags = 0;
+
+		spin_lock_irqsave(&port->lock, flags);
+		/* Empty the receive FIFO 1st before making changes */
+		while (!(xuartps_readl(XUARTPS_SR_OFFSET) & XUARTPS_SR_RXEMPTY))
+			xuartps_readl(XUARTPS_FIFO_OFFSET);
+		/* set RX trigger level to 1 */
+		xuartps_writel(1, XUARTPS_RXWM_OFFSET);
+		/* disable RX timeout interrups */
+		xuartps_writel(XUARTPS_IXR_TOUT, XUARTPS_IDR_OFFSET);
+		spin_unlock_irqrestore(&port->lock, flags);
+	}
+
+	return 0;
+}
+
+/**
+ * xuartps_resume - Resume after a previous suspend
+ * @device: Pointer to the device structure
+ *
+ * Returns 0
+ */
+static int xuartps_resume(struct device *device)
+{
+	struct uart_port *port = dev_get_drvdata(device);
+	unsigned long flags = 0;
+	u32 ctrl_reg;
+	struct tty_struct *tty;
+	struct device *tty_dev;
+	int may_wake = 0;
+
+	/* Get the tty which could be NULL so don't assume it's valid */
+	tty = tty_port_tty_get(&port->state->port);
+	if (tty) {
+		tty_dev = tty->dev;
+		may_wake = device_may_wakeup(tty_dev);
+		tty_kref_put(tty);
+	}
+
+	if (console_suspend_enabled && !may_wake) {
+		struct xuartps *xuartps = port->private_data;
+
+		clk_enable(xuartps->aperclk);
+		clk_enable(xuartps->refclk);
+
+		spin_lock_irqsave(&port->lock, flags);
+
+		/* Set TX/RX Reset */
+		xuartps_writel(xuartps_readl(XUARTPS_CR_OFFSET) |
+				(XUARTPS_CR_TXRST | XUARTPS_CR_RXRST),
+				XUARTPS_CR_OFFSET);
+		while (xuartps_readl(XUARTPS_CR_OFFSET) &
+				(XUARTPS_CR_TXRST | XUARTPS_CR_RXRST))
+			cpu_relax();
+
+		/* restore rx timeout value */
+		xuartps_writel(rx_timeout, XUARTPS_RXTOUT_OFFSET);
+		/* Enable Tx/Rx */
+		ctrl_reg = xuartps_readl(XUARTPS_CR_OFFSET);
+		xuartps_writel(
+			(ctrl_reg & ~(XUARTPS_CR_TX_DIS | XUARTPS_CR_RX_DIS)) |
+			(XUARTPS_CR_TX_EN | XUARTPS_CR_RX_EN),
+			XUARTPS_CR_OFFSET);
+
+		spin_unlock_irqrestore(&port->lock, flags);
+	} else {
+		spin_lock_irqsave(&port->lock, flags);
+		/* restore original rx trigger level */
+		xuartps_writel(rx_trigger_level, XUARTPS_RXWM_OFFSET);
+		/* enable RX timeout interrupt */
+		xuartps_writel(XUARTPS_IXR_TOUT, XUARTPS_IER_OFFSET);
+		spin_unlock_irqrestore(&port->lock, flags);
+	}
+
+	return uart_resume_port(&xuartps_uart_driver, port);
+}
+#endif /* ! CONFIG_PM_SLEEP */
+
+static SIMPLE_DEV_PM_OPS(xuartps_dev_pm_ops, xuartps_suspend, xuartps_resume);
+
 /** Structure Definitions
  */
 static struct uart_driver xuartps_uart_driver = {
@@ -1348,6 +1461,7 @@ static struct platform_driver xuartps_platform_driver = {
 		.owner = THIS_MODULE,
 		.name = XUARTPS_NAME,		/* Driver name */
 		.of_match_table = xuartps_of_match,
+		.pm = &xuartps_dev_pm_ops,
 		},
 };
 
-- 
cgit 


From 37cd940b2044ca0c481e70742da37278a2d736ae Mon Sep 17 00:00:00 2001
From: Soren Brinkmann <soren.brinkmann@xilinx.com>
Date: Thu, 17 Oct 2013 14:08:13 -0700
Subject: tty: xuartps: Update copyright information

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/xilinx_uartps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 9ecd8ea4f3ae..c7c96c2f149c 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -1,7 +1,7 @@
 /*
  * Xilinx PS UART driver
  *
- * 2011 (c) Xilinx Inc.
+ * 2011 - 2013 (C) Xilinx Inc.
  *
  * This program is free software; you can redistribute it
  * and/or modify it under the terms of the GNU General Public
-- 
cgit 


From 943414752045defdd7e476a830e2d8c0ec37cca2 Mon Sep 17 00:00:00 2001
From: Angelo Butti <buttiangelo@gmail.com>
Date: Tue, 15 Oct 2013 22:41:10 +0300
Subject: serial: 8250_pci: add Pericom PCIe Serial board Support
 (12d8:7952/4/8) - Chip PI7C9X7952/4/8

Signed-off-by: Angelo Butti <buttiangelo@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/8250_pci.c | 48 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/drivers/tty/serial/8250/8250_pci.c b/drivers/tty/serial/8250/8250_pci.c
index 4ea45c15388c..4697a514b80a 100644
--- a/drivers/tty/serial/8250/8250_pci.c
+++ b/drivers/tty/serial/8250/8250_pci.c
@@ -1307,6 +1307,29 @@ static int pci_default_setup(struct serial_private *priv,
 	return setup_port(priv, port, bar, offset, board->reg_shift);
 }
 
+static int pci_pericom_setup(struct serial_private *priv,
+		  const struct pciserial_board *board,
+		  struct uart_8250_port *port, int idx)
+{
+	unsigned int bar, offset = board->first_offset, maxnr;
+
+	bar = FL_GET_BASE(board->flags);
+	if (board->flags & FL_BASE_BARS)
+		bar += idx;
+	else
+		offset += idx * board->uart_offset;
+
+	maxnr = (pci_resource_len(priv->dev, bar) - board->first_offset) >>
+		(board->reg_shift + 3);
+
+	if (board->flags & FL_REGION_SZ_CAP && idx >= maxnr)
+		return 1;
+
+	port->port.uartclk = 14745600;
+
+	return setup_port(priv, port, bar, offset, board->reg_shift);
+}
+
 static int
 ce4100_serial_setup(struct serial_private *priv,
 		  const struct pciserial_board *board,
@@ -2015,6 +2038,31 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
 		.setup		= pci_default_setup,
 		.exit		= pci_plx9050_exit,
 	},
+	/*
+	 * Pericom
+	 */
+	{
+		.vendor		= 0x12d8,
+		.device		= 0x7952,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_pericom_setup,
+	},
+	{
+		.vendor		= 0x12d8,
+		.device		= 0x7954,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_pericom_setup,
+	},
+	{
+		.vendor		= 0x12d8,
+		.device		= 0x7958,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.setup		= pci_pericom_setup,
+	},
+
 	/*
 	 * PLX
 	 */
-- 
cgit 


From 565ce6422ff92f5af71e4d5a09f78215433b2695 Mon Sep 17 00:00:00 2001
From: "K. Y. Srinivasan" <kys@microsoft.com>
Date: Wed, 16 Oct 2013 19:27:19 -0700
Subject: Drivers: hv: vmbus: Fix a bug in channel rescind code

Rescind of subchannels were not being correctly handled. Fix the bug.

Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Cc: <stable@vger.kernel.org>        [3.11+]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hv/channel_mgmt.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index bbff5f200bef..fa920469bf10 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -203,7 +203,8 @@ static void vmbus_process_rescind_offer(struct work_struct *work)
 	struct vmbus_channel *primary_channel;
 	struct vmbus_channel_relid_released msg;
 
-	vmbus_device_unregister(channel->device_obj);
+	if (channel->device_obj)
+		vmbus_device_unregister(channel->device_obj);
 	memset(&msg, 0, sizeof(struct vmbus_channel_relid_released));
 	msg.child_relid = channel->offermsg.child_relid;
 	msg.header.msgtype = CHANNELMSG_RELID_RELEASED;
@@ -216,7 +217,7 @@ static void vmbus_process_rescind_offer(struct work_struct *work)
 	} else {
 		primary_channel = channel->primary_channel;
 		spin_lock_irqsave(&primary_channel->sc_lock, flags);
-		list_del(&channel->listentry);
+		list_del(&channel->sc_list);
 		spin_unlock_irqrestore(&primary_channel->sc_lock, flags);
 	}
 	free_channel(channel);
-- 
cgit 


From ed6f7ac1dcae0b95ef2946067beb4ffaba415119 Mon Sep 17 00:00:00 2001
From: Paul Bolle <pebolle@tiscali.nl>
Date: Thu, 17 Oct 2013 13:52:10 +0300
Subject: mei: me: downgrade two errors to debug level

The mei_me driver prints "suspend" at error level at each suspend. It
also prints "stop" at error level at driver unload. Downgrade these
uninteresting messages to debug level.

Cc: Adam Jackson <ajax@redhat.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/pci-me.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index d2ea9ffbc77a..1bf300e08993 100644
--- a/drivers/misc/mei/pci-me.c
+++ b/drivers/misc/mei/pci-me.c
@@ -232,7 +232,7 @@ static void mei_me_remove(struct pci_dev *pdev)
 	hw = to_me_hw(dev);
 
 
-	dev_err(&pdev->dev, "stop\n");
+	dev_dbg(&pdev->dev, "stop\n");
 	mei_stop(dev);
 
 	/* disable interrupts */
@@ -262,7 +262,7 @@ static int mei_me_pci_suspend(struct device *device)
 	if (!dev)
 		return -ENODEV;
 
-	dev_err(&pdev->dev, "suspend\n");
+	dev_dbg(&pdev->dev, "suspend\n");
 
 	mei_stop(dev);
 
-- 
cgit 


From eec86b8e85309a2cb0b33bcb361c67d81ebed474 Mon Sep 17 00:00:00 2001
From: Alexander Usyskin <alexander.usyskin@intel.com>
Date: Thu, 17 Oct 2013 17:20:22 +0300
Subject: mei: move host_clients_map cleanup to device init

Move host_clients_map cleanup from host client init to device init.

This fixes bug where we cleaned up the bitmask that servers as pool for
host client ids while file descriptors are kept open during suspend.
On resume a new connection will be assigned id that is already taken
by opened file descriptor. Consequently read/write will fail due to
mismatched book keeping.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/client.c | 9 ---------
 drivers/misc/mei/init.c   | 8 ++++++++
 2 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index a48c0e71e69d..0ccc22ce0904 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -365,15 +365,6 @@ void mei_host_client_init(struct work_struct *work)
 
 	mutex_lock(&dev->device_lock);
 
-	bitmap_zero(dev->host_clients_map, MEI_CLIENTS_MAX);
-	dev->open_handle_count = 0;
-
-	/*
-	 * Reserving the first three client IDs
-	 * 0: Reserved for MEI Bus Message communications
-	 */
-	bitmap_set(dev->host_clients_map, 0, 1);
-
 	for (i = 0; i < dev->me_clients_num; i++) {
 		client_props = &dev->me_clients[i].props;
 
diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index a7d29a7dcab2..c32d45209cc6 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -68,6 +68,14 @@ void mei_device_init(struct mei_device *dev)
 	mei_io_list_init(&dev->amthif_cmd_list);
 	mei_io_list_init(&dev->amthif_rd_complete_list);
 
+	bitmap_zero(dev->host_clients_map, MEI_CLIENTS_MAX);
+	dev->open_handle_count = 0;
+
+	/*
+	 * Reserving the first client ID
+	 * 0: Reserved for MEI Bus Message communications
+	 */
+	bitmap_set(dev->host_clients_map, 0, 1);
 }
 EXPORT_SYMBOL_GPL(mei_device_init);
 
-- 
cgit 


From e3967e7b28de70d28313cc93d831d8525083097f Mon Sep 17 00:00:00 2001
From: Sylwester Nawrocki <s.nawrocki@samsung.com>
Date: Wed, 16 Oct 2013 19:03:45 +0200
Subject: phy: exynos-mipi-video: Fix phy_power_off() callback

Fix argument passed to the register setup helper function so
the phy is actually disabled. Now due to cut&paste error 1 is
passed to both phy_power_on() and phy_power_off().

Reported by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/phy/phy-exynos-mipi-video.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/phy/phy-exynos-mipi-video.c b/drivers/phy/phy-exynos-mipi-video.c
index b73b86ab4697..0c5efab11af1 100644
--- a/drivers/phy/phy-exynos-mipi-video.c
+++ b/drivers/phy/phy-exynos-mipi-video.c
@@ -93,7 +93,7 @@ static int exynos_mipi_video_phy_power_off(struct phy *phy)
 	struct video_phy_desc *phy_desc = phy_get_drvdata(phy);
 	struct exynos_mipi_video_phy *state = to_mipi_video_phy(phy_desc);
 
-	return __set_phy_state(state, phy_desc->index, 1);
+	return __set_phy_state(state, phy_desc->index, 0);
 }
 
 static struct phy *exynos_mipi_video_phy_xlate(struct device *dev,
-- 
cgit 


From 7eab8ded347244f1464006ace851521254cabb07 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 7 Oct 2013 18:08:23 -0700
Subject: input: serio: use DEVICE_ATTR_RO()

Convert the serio sysfs fiels to use the DEVICE_ATTR_RO() macros to make
it easier to audit the correct sysfs file permission usage.

Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: <linux-input@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/serio/serio.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index 2b56855c2c77..478880e3dde2 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -373,34 +373,34 @@ static ssize_t serio_show_modalias(struct device *dev, struct device_attribute *
 			serio->id.type, serio->id.proto, serio->id.id, serio->id.extra);
 }
 
-static ssize_t serio_show_id_type(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t type_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct serio *serio = to_serio_port(dev);
 	return sprintf(buf, "%02x\n", serio->id.type);
 }
 
-static ssize_t serio_show_id_proto(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t proto_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct serio *serio = to_serio_port(dev);
 	return sprintf(buf, "%02x\n", serio->id.proto);
 }
 
-static ssize_t serio_show_id_id(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t id_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct serio *serio = to_serio_port(dev);
 	return sprintf(buf, "%02x\n", serio->id.id);
 }
 
-static ssize_t serio_show_id_extra(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t extra_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct serio *serio = to_serio_port(dev);
 	return sprintf(buf, "%02x\n", serio->id.extra);
 }
 
-static DEVICE_ATTR(type, S_IRUGO, serio_show_id_type, NULL);
-static DEVICE_ATTR(proto, S_IRUGO, serio_show_id_proto, NULL);
-static DEVICE_ATTR(id, S_IRUGO, serio_show_id_id, NULL);
-static DEVICE_ATTR(extra, S_IRUGO, serio_show_id_extra, NULL);
+static DEVICE_ATTR_RO(type);
+static DEVICE_ATTR_RO(proto);
+static DEVICE_ATTR_RO(id);
+static DEVICE_ATTR_RO(extra);
 
 static struct attribute *serio_device_id_attrs[] = {
 	&dev_attr_type.attr,
-- 
cgit 


From 3778a2129bcce84f684cc0017ed20d2524afd289 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 7 Oct 2013 18:09:08 -0700
Subject: input: serio: remove bus usage of dev_attrs

The dev_attrs field of struct bus_type is going away soon, so move the
remaining sysfs files that are being described with this field to use
dev_groups instead.

Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: <linux-input@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/serio/serio.c | 62 ++++++++++++++++++++++-----------------------
 1 file changed, 30 insertions(+), 32 deletions(-)

diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index 478880e3dde2..98707fb2cb5d 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -365,7 +365,7 @@ static ssize_t serio_show_description(struct device *dev, struct device_attribut
 	return sprintf(buf, "%s\n", serio->name);
 }
 
-static ssize_t serio_show_modalias(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct serio *serio = to_serio_port(dev);
 
@@ -397,30 +397,7 @@ static ssize_t extra_show(struct device *dev, struct device_attribute *attr, cha
 	return sprintf(buf, "%02x\n", serio->id.extra);
 }
 
-static DEVICE_ATTR_RO(type);
-static DEVICE_ATTR_RO(proto);
-static DEVICE_ATTR_RO(id);
-static DEVICE_ATTR_RO(extra);
-
-static struct attribute *serio_device_id_attrs[] = {
-	&dev_attr_type.attr,
-	&dev_attr_proto.attr,
-	&dev_attr_id.attr,
-	&dev_attr_extra.attr,
-	NULL
-};
-
-static struct attribute_group serio_id_attr_group = {
-	.name	= "id",
-	.attrs	= serio_device_id_attrs,
-};
-
-static const struct attribute_group *serio_device_attr_groups[] = {
-	&serio_id_attr_group,
-	NULL
-};
-
-static ssize_t serio_rebind_driver(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t drvctl_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct serio *serio = to_serio_port(dev);
 	struct device_driver *drv;
@@ -474,14 +451,36 @@ static ssize_t serio_set_bind_mode(struct device *dev, struct device_attribute *
 	return retval;
 }
 
-static struct device_attribute serio_device_attrs[] = {
-	__ATTR(description, S_IRUGO, serio_show_description, NULL),
-	__ATTR(modalias, S_IRUGO, serio_show_modalias, NULL),
-	__ATTR(drvctl, S_IWUSR, NULL, serio_rebind_driver),
-	__ATTR(bind_mode, S_IWUSR | S_IRUGO, serio_show_bind_mode, serio_set_bind_mode),
-	__ATTR_NULL
+static DEVICE_ATTR_RO(type);
+static DEVICE_ATTR_RO(proto);
+static DEVICE_ATTR_RO(id);
+static DEVICE_ATTR_RO(extra);
+static DEVICE_ATTR_RO(modalias);
+static DEVICE_ATTR_WO(drvctl);
+static DEVICE_ATTR(description, S_IRUGO, serio_show_description, NULL);
+static DEVICE_ATTR(bind_mode, S_IWUSR | S_IRUGO, serio_show_bind_mode, serio_set_bind_mode);
+
+static struct attribute *serio_device_id_attrs[] = {
+	&dev_attr_type.attr,
+	&dev_attr_proto.attr,
+	&dev_attr_id.attr,
+	&dev_attr_extra.attr,
+	&dev_attr_modalias.attr,
+	&dev_attr_description.attr,
+	&dev_attr_drvctl.attr,
+	&dev_attr_bind_mode.attr,
+	NULL
+};
+
+static struct attribute_group serio_id_attr_group = {
+	.name	= "id",
+	.attrs	= serio_device_id_attrs,
 };
 
+static const struct attribute_group *serio_device_attr_groups[] = {
+	&serio_id_attr_group,
+	NULL
+};
 
 static void serio_release_port(struct device *dev)
 {
@@ -996,7 +995,6 @@ EXPORT_SYMBOL(serio_interrupt);
 
 static struct bus_type serio_bus = {
 	.name		= "serio",
-	.dev_attrs	= serio_device_attrs,
 	.drv_groups	= serio_driver_groups,
 	.match		= serio_bus_match,
 	.uevent		= serio_uevent,
-- 
cgit 


From 0cba7de7f6cdcf84c9b75d29041c475aedeb45c9 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 7 Oct 2013 18:27:37 -0700
Subject: input: gameport: convert bus code to use dev_groups

The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the gameport bus code to use the
correct field.

Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: <linux-input@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/input/gameport/gameport.c | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/input/gameport/gameport.c b/drivers/input/gameport/gameport.c
index 922a7fea2ce6..24c41ba7d4e0 100644
--- a/drivers/input/gameport/gameport.c
+++ b/drivers/input/gameport/gameport.c
@@ -422,14 +422,15 @@ static struct gameport *gameport_get_pending_child(struct gameport *parent)
  * Gameport port operations
  */
 
-static ssize_t gameport_show_description(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t gameport_description_show(struct device *dev, struct device_attribute *attr, char *buf)
 {
 	struct gameport *gameport = to_gameport_port(dev);
 
 	return sprintf(buf, "%s\n", gameport->name);
 }
+static DEVICE_ATTR(description, S_IRUGO, gameport_description_show, NULL);
 
-static ssize_t gameport_rebind_driver(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+static ssize_t drvctl_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct gameport *gameport = to_gameport_port(dev);
 	struct device_driver *drv;
@@ -457,12 +458,14 @@ static ssize_t gameport_rebind_driver(struct device *dev, struct device_attribut
 
 	return error ? error : count;
 }
+static DEVICE_ATTR_WO(drvctl);
 
-static struct device_attribute gameport_device_attrs[] = {
-	__ATTR(description, S_IRUGO, gameport_show_description, NULL),
-	__ATTR(drvctl, S_IWUSR, NULL, gameport_rebind_driver),
-	__ATTR_NULL
+static struct attribute *gameport_device_attrs[] = {
+	&dev_attr_description.attr,
+	&dev_attr_drvctl.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(gameport_device);
 
 static void gameport_release_port(struct device *dev)
 {
@@ -750,7 +753,7 @@ static int gameport_bus_match(struct device *dev, struct device_driver *drv)
 
 static struct bus_type gameport_bus = {
 	.name		= "gameport",
-	.dev_attrs	= gameport_device_attrs,
+	.dev_groups	= gameport_device_groups,
 	.drv_groups	= gameport_driver_groups,
 	.match		= gameport_bus_match,
 	.probe		= gameport_driver_probe,
-- 
cgit 


From 13098cf05a430464f50ffac73cfa2c467768410d Mon Sep 17 00:00:00 2001
From: Ludovic Desroches <ludovic.desroches@atmel.com>
Date: Fri, 4 Oct 2013 10:46:51 +0200
Subject: dma: atmel-dma: correct typo in the device tree bindings
 documentation

The value to set ASAP mode for FIFO configuration is 2 instead of 1.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 Documentation/devicetree/bindings/dma/atmel-dma.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/dma/atmel-dma.txt b/Documentation/devicetree/bindings/dma/atmel-dma.txt
index e1f343c7a34b..f69bcf5a6343 100644
--- a/Documentation/devicetree/bindings/dma/atmel-dma.txt
+++ b/Documentation/devicetree/bindings/dma/atmel-dma.txt
@@ -28,7 +28,7 @@ The three cells in order are:
 dependent:
   - bit 7-0: peripheral identifier for the hardware handshaking interface. The
   identifier can be different for tx and rx.
-  - bit 11-8: FIFO configuration. 0 for half FIFO, 1 for ALAP, 1 for ASAP.
+  - bit 11-8: FIFO configuration. 0 for half FIFO, 1 for ALAP, 2 for ASAP.
 
 Example:
 
-- 
cgit 


From 7751ef1b3184ecfaebc5e5a8981407814ce0be0b Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Sat, 19 Oct 2013 23:38:15 +0300
Subject: Bluetooth: Check for flag instead of features in
 update_scan_rsp_data()

It's better to check for the device flag instead of device features so
that we avoid unnecessary HCI commands when the feature is supported but
disabled (i.e. the flag is unset).

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index fb7fc9f17af1..f39bab059fcc 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -568,7 +568,7 @@ static void update_scan_rsp_data(struct hci_request *req)
 	struct hci_cp_le_set_scan_rsp_data cp;
 	u8 len;
 
-	if (!lmp_le_capable(hdev))
+	if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags))
 		return;
 
 	memset(&cp, 0, sizeof(cp));
-- 
cgit 


From 10994ce6e6696d2fb5a14601302da9b680fc9cc9 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Sat, 19 Oct 2013 23:38:16 +0300
Subject: Bluetooth: Check for flag instead of features in update_adv_data()

It's better to check for the device flag instead of device features so
that we avoid unnecessary HCI commands when the feature is supported but
disabled (i.e. the flag is unset).

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index f39bab059fcc..dd0bd4a55c8a 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -632,7 +632,7 @@ static void update_adv_data(struct hci_request *req)
 	struct hci_cp_le_set_adv_data cp;
 	u8 len;
 
-	if (!lmp_le_capable(hdev))
+	if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags))
 		return;
 
 	memset(&cp, 0, sizeof(cp));
-- 
cgit 


From f87ea1dabb4b0e50f0c3d7140d89f1bb697a1676 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Sat, 19 Oct 2013 23:38:17 +0300
Subject: Bluetooth: Add missing check for BREDR_ENABLED flag in update_class()

We shouldn't be sending the HCI_Write_Class_Of_Device command when
BR/EDR is disabled since this is a BR/EDR-only command.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index dd0bd4a55c8a..c363285c64a8 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -749,6 +749,9 @@ static void update_class(struct hci_request *req)
 	if (!hdev_is_powered(hdev))
 		return;
 
+	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
+		return;
+
 	if (test_bit(HCI_SERVICE_CACHE, &hdev->dev_flags))
 		return;
 
-- 
cgit 


From e8ba3a1f08d9386b6e4abe9b00c21e38029a76a4 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Sat, 19 Oct 2013 23:38:18 +0300
Subject: Bluetooth: Refactor set_connectable settings update to separate
 function

We will need to directly update the device flags and notify user space
of the new settings not just when we're powered off but also if it turns
out that there are no HCI commands to send (which can happen in
particular when BR/EDR is disabled). Since this is a considerable amount
of code, refactor it to a separate function so it can be reused for the
"no HCI commands to send" case.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 46 +++++++++++++++++++++++++++-------------------
 1 file changed, 27 insertions(+), 19 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index c363285c64a8..b74a157bde09 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1381,6 +1381,32 @@ unlock:
 	hci_dev_unlock(hdev);
 }
 
+static int set_connectable_update_settings(struct hci_dev *hdev,
+					   struct sock *sk, u8 val)
+{
+	bool changed = false;
+	int err;
+
+	if (!!val != test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
+		changed = true;
+
+	if (val) {
+		set_bit(HCI_CONNECTABLE, &hdev->dev_flags);
+	} else {
+		clear_bit(HCI_CONNECTABLE, &hdev->dev_flags);
+		clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags);
+	}
+
+	err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE, hdev);
+	if (err < 0)
+		return err;
+
+	if (changed)
+		return new_settings(hdev, sk);
+
+	return 0;
+}
+
 static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 			   u16 len)
 {
@@ -1404,25 +1430,7 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 	hci_dev_lock(hdev);
 
 	if (!hdev_is_powered(hdev)) {
-		bool changed = false;
-
-		if (!!cp->val != test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
-			changed = true;
-
-		if (cp->val) {
-			set_bit(HCI_CONNECTABLE, &hdev->dev_flags);
-		} else {
-			clear_bit(HCI_CONNECTABLE, &hdev->dev_flags);
-			clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags);
-		}
-
-		err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE, hdev);
-		if (err < 0)
-			goto failed;
-
-		if (changed)
-			err = new_settings(hdev, sk);
-
+		err = set_connectable_update_settings(hdev, sk, cp->val);
 		goto failed;
 	}
 
-- 
cgit 


From a81070ba3743400444275cc87f8f91bb5b67dd4b Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Sat, 19 Oct 2013 23:38:19 +0300
Subject: Bluetooth: Fix updating settings when there are no HCI commands to
 send

It is possible that the Set Connectable management command doesn't cause
any HCI commands to send (such as when BR/EDR is disabled). We can't
just send a response to user space in this case but must also update the
necessary device flags and settings. This patch fixes the issue by using
the recently introduced set_connectable_update_settings function.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index b74a157bde09..51d0446bc4ed 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1483,8 +1483,8 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 	if (err < 0) {
 		mgmt_pending_remove(cmd);
 		if (err == -ENODATA)
-			err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE,
-						hdev);
+			err = set_connectable_update_settings(hdev, sk,
+							      cp->val);
 		goto failed;
 	}
 
-- 
cgit 


From eb2a8d202f91b874d5650c9e0a2c42fdaf137d91 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Sat, 19 Oct 2013 23:38:20 +0300
Subject: Bluetooth: Move mgmt_pending_find to avoid forward declarations

We will soon need this function for updating the advertising data, so
move it higher up in mgmt.c to avoid a forward declaration.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 51d0446bc4ed..20f6309f8245 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -536,6 +536,18 @@ static u8 *create_uuid128_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
 	return ptr;
 }
 
+static struct pending_cmd *mgmt_pending_find(u16 opcode, struct hci_dev *hdev)
+{
+	struct pending_cmd *cmd;
+
+	list_for_each_entry(cmd, &hdev->mgmt_pending, list) {
+		if (cmd->opcode == opcode)
+			return cmd;
+	}
+
+	return NULL;
+}
+
 static u8 create_scan_rsp_data(struct hci_dev *hdev, u8 *ptr)
 {
 	u8 ad_len = 0;
@@ -886,18 +898,6 @@ static void mgmt_pending_foreach(u16 opcode, struct hci_dev *hdev,
 	}
 }
 
-static struct pending_cmd *mgmt_pending_find(u16 opcode, struct hci_dev *hdev)
-{
-	struct pending_cmd *cmd;
-
-	list_for_each_entry(cmd, &hdev->mgmt_pending, list) {
-		if (cmd->opcode == opcode)
-			return cmd;
-	}
-
-	return NULL;
-}
-
 static void mgmt_pending_remove(struct pending_cmd *cmd)
 {
 	list_del(&cmd->list);
-- 
cgit 


From 4b580614e1435628490a1762726638546f3a5e4e Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Sat, 19 Oct 2013 23:38:21 +0300
Subject: Bluetooth: Fix sending write_scan_enable when BR/EDR is disabled

We should only send the HCI_Write_Scan_Enable command from
mgmt_set_powered_failed() when BR/EDR support is enabled. This is
particularly important when the discoverable setting is also tied to LE.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 20f6309f8245..67b95a80f829 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -4337,7 +4337,6 @@ void mgmt_set_powered_failed(struct hci_dev *hdev, int err)
 void mgmt_discoverable_timeout(struct hci_dev *hdev)
 {
 	struct hci_request req;
-	u8 scan = SCAN_PAGE;
 
 	hci_dev_lock(hdev);
 
@@ -4349,7 +4348,11 @@ void mgmt_discoverable_timeout(struct hci_dev *hdev)
 	clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags);
 
 	hci_req_init(&req, hdev);
-	hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, sizeof(scan), &scan);
+	if (test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) {
+		u8 scan = SCAN_PAGE;
+		hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE,
+			    sizeof(scan), &scan);
+	}
 	update_class(&req);
 	hci_req_run(&req, NULL);
 
-- 
cgit 


From b456f87cb0c726cf97ce1e88aecfcbacf1cdf5fe Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Sat, 19 Oct 2013 23:38:22 +0300
Subject: Bluetooth: Move HCI_LIMITED_DISCOVERABLE changes to a general place

We'll soon be introducing also LE support for the Set Discoverable
management command, so move the HCI_LIMITED_DISCOVERABLE flag clearing
and setting out from the if-branch that is only used for a BR/EDR
specific HCI command.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 67b95a80f829..796db5849795 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1220,6 +1220,12 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 	cancel_delayed_work(&hdev->discov_off);
 	hdev->discov_timeout = timeout;
 
+	/* Limited discoverable mode */
+	if (cp->val == 0x02)
+		set_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags);
+	else
+		clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags);
+
 	hci_req_init(&req, hdev);
 
 	scan = SCAN_PAGE;
@@ -1229,8 +1235,6 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 
 		if (cp->val == 0x02) {
 			/* Limited discoverable mode */
-			set_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags);
-
 			hci_cp.num_iac = 2;
 			hci_cp.iac_lap[0] = 0x00;	/* LIAC */
 			hci_cp.iac_lap[1] = 0x8b;
@@ -1240,8 +1244,6 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 			hci_cp.iac_lap[5] = 0x9e;
 		} else {
 			/* General discoverable mode */
-			clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags);
-
 			hci_cp.num_iac = 1;
 			hci_cp.iac_lap[0] = 0x33;	/* GIAC */
 			hci_cp.iac_lap[1] = 0x8b;
-- 
cgit 


From 9a43e25fff07a94f40d4a9e1081458e30c840256 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Sun, 20 Oct 2013 19:00:07 +0300
Subject: Bluetooth: Update Set Discoverable to support LE

This patch updates the Set Discoverable management command to also be
applicable for LE. In particular this affects the advertising flags
where we can say "general discoverable" or "limited discoverable".

Since the device flags may not be up-to-date when the advertising data
is written this patch introduces a get_adv_discov_flags() helper
function which also looks at any pending mgmt commands (a pending
set_discoverable would be the exception when the flags are not yet
correct).

The patch also adds HCI_DISCOVERABLE flag clearing to the
mgmt_discoverable_timeout function, since the code was previously
relying on the mgmt_discoverable callback to handle this, which is only
called for the BR/EDR-only HCI_Write_Scan_Enable command.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 80 ++++++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 69 insertions(+), 11 deletions(-)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 796db5849795..bd91ee5f130c 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -599,12 +599,35 @@ static void update_scan_rsp_data(struct hci_request *req)
 	hci_req_add(req, HCI_OP_LE_SET_SCAN_RSP_DATA, sizeof(cp), &cp);
 }
 
+static u8 get_adv_discov_flags(struct hci_dev *hdev)
+{
+	struct pending_cmd *cmd;
+
+	/* If there's a pending mgmt command the flags will not yet have
+	 * their final values, so check for this first.
+	 */
+	cmd = mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev);
+	if (cmd) {
+		struct mgmt_mode *cp = cmd->param;
+		if (cp->val == 0x01)
+			return LE_AD_GENERAL;
+		else if (cp->val == 0x02)
+			return LE_AD_LIMITED;
+	} else {
+		if (test_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags))
+			return LE_AD_LIMITED;
+		else if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
+			return LE_AD_GENERAL;
+	}
+
+	return 0;
+}
+
 static u8 create_adv_data(struct hci_dev *hdev, u8 *ptr)
 {
 	u8 ad_len = 0, flags = 0;
 
-	if (test_bit(HCI_ADVERTISING, &hdev->dev_flags))
-		flags |= LE_AD_GENERAL;
+	flags |= get_adv_discov_flags(hdev);
 
 	if (test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) {
 		if (lmp_le_br_capable(hdev))
@@ -1120,15 +1143,15 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 	struct pending_cmd *cmd;
 	struct hci_request req;
 	u16 timeout;
-	u8 scan, status;
+	u8 scan;
 	int err;
 
 	BT_DBG("request for %s", hdev->name);
 
-	status = mgmt_bredr_support(hdev);
-	if (status)
+	if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags) &&
+	    !test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
-				  status);
+				  MGMT_STATUS_REJECTED);
 
 	if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
 		return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
@@ -1228,6 +1251,12 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 
 	hci_req_init(&req, hdev);
 
+	/* The procedure for LE-only controllers is much simpler - just
+	 * update the advertising data.
+	 */
+	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
+		goto update_ad;
+
 	scan = SCAN_PAGE;
 
 	if (cp->val) {
@@ -1260,6 +1289,9 @@ static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
 
 	hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, sizeof(scan), &scan);
 
+update_ad:
+	update_adv_data(&req);
+
 	err = hci_req_run(&req, set_discoverable_complete);
 	if (err < 0)
 		mgmt_pending_remove(cmd);
@@ -1451,8 +1483,17 @@ static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
 
 	hci_req_init(&req, hdev);
 
-	if (test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags) &&
-	    cp->val != test_bit(HCI_PSCAN, &hdev->flags)) {
+	/* If BR/EDR is not enabled and we disable advertising as a
+	 * by-product of disabling connectable, we need to update the
+	 * advertising flags.
+	 */
+	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) {
+		if (!cp->val) {
+			clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags);
+			clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags);
+		}
+		update_adv_data(&req);
+	} else if (cp->val != test_bit(HCI_PSCAN, &hdev->flags)) {
 		if (cp->val) {
 			scan = SCAN_PAGE;
 		} else {
@@ -4348,6 +4389,7 @@ void mgmt_discoverable_timeout(struct hci_dev *hdev)
 	 * safe to unconditionally clear the flag.
 	 */
 	clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags);
+	clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags);
 
 	hci_req_init(&req, hdev);
 	if (test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags)) {
@@ -4356,10 +4398,13 @@ void mgmt_discoverable_timeout(struct hci_dev *hdev)
 			    sizeof(scan), &scan);
 	}
 	update_class(&req);
+	update_adv_data(&req);
 	hci_req_run(&req, NULL);
 
 	hdev->discov_timeout = 0;
 
+	new_settings(hdev, NULL);
+
 	hci_dev_unlock(hdev);
 }
 
@@ -4374,13 +4419,26 @@ void mgmt_discoverable(struct hci_dev *hdev, u8 discoverable)
 	if (mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev))
 		return;
 
-	if (discoverable)
+	if (discoverable) {
 		changed = !test_and_set_bit(HCI_DISCOVERABLE, &hdev->dev_flags);
-	else
+	} else {
+		clear_bit(HCI_LIMITED_DISCOVERABLE, &hdev->dev_flags);
 		changed = test_and_clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags);
+	}
+
+	if (changed) {
+		struct hci_request req;
+
+		/* In case this change in discoverable was triggered by
+		 * a disabling of connectable there could be a need to
+		 * update the advertising flags.
+		 */
+		hci_req_init(&req, hdev);
+		update_adv_data(&req);
+		hci_req_run(&req, NULL);
 
-	if (changed)
 		new_settings(hdev, NULL);
+	}
 }
 
 void mgmt_connectable(struct hci_dev *hdev, u8 connectable)
-- 
cgit 


From ecfc0c04f236f1e2a95094792ec10cf27be39f7c Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Thu, 17 Oct 2013 21:13:19 +0100
Subject: ASoC: dai: Provide interface for setting DMA data at probe time

Allow DMA data to be set at probe time for devices that can do that,
avoiding the need to do it every time we start a stream and supporting
non-DT dmaengine users using the helpers.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/sound/soc-dai.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index ae9a227d35d3..97943fd397cc 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -276,6 +276,13 @@ static inline void snd_soc_dai_set_dma_data(struct snd_soc_dai *dai,
 		dai->capture_dma_data = data;
 }
 
+static inline void snd_soc_dai_init_dma_data(struct snd_soc_dai *dai,
+					     void *playback, void *capture)
+{
+	dai->playback_dma_data = playback;
+	dai->capture_dma_data = capture;
+}
+
 static inline void snd_soc_dai_set_drvdata(struct snd_soc_dai *dai,
 		void *data)
 {
-- 
cgit 


From 511e30331745e0c3452b89354a4b94c0e60f15a4 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Thu, 17 Oct 2013 21:18:40 +0100
Subject: ASoC: samsung: Initialise DMA data at device probe time

This is a minor simplification and will help with converting the platform
to use the dmaengine helpers.

Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/samsung/i2s.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index b302f3b7a587..3e08b6c0f7ba 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -702,13 +702,6 @@ static int i2s_hw_params(struct snd_pcm_substream *substream,
 	}
 	writel(mod, i2s->addr + I2SMOD);
 
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-		snd_soc_dai_set_dma_data(dai, substream,
-			(void *)&i2s->dma_playback);
-	else
-		snd_soc_dai_set_dma_data(dai, substream,
-			(void *)&i2s->dma_capture);
-
 	i2s->frmclk = params_rate(params);
 
 	return 0;
@@ -970,6 +963,8 @@ static int samsung_i2s_dai_probe(struct snd_soc_dai *dai)
 	}
 	clk_prepare_enable(i2s->clk);
 
+	snd_soc_dai_init_dma_data(dai, &i2s->dma_playback, &i2s->dma_capture);
+
 	if (other) {
 		other->addr = i2s->addr;
 		other->clk = i2s->clk;
-- 
cgit 


From e244bb9bc1883547d44642c99f483c2e57e2a940 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Thu, 17 Oct 2013 22:46:49 -0700
Subject: ASoC: simple-card: un-implemented set_fmt is not error

Current simple-card returns error if DAI doesn't
support .set_fmt callback.
But the error is -ENOTSUPP (= not supported),
and it is not error.
This patch avoids such case

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/generic/simple-card.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index 8c49147db84c..b2fbb7075a6c 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -27,6 +27,11 @@ static int __asoc_simple_card_dai_init(struct snd_soc_dai *dai,
 	if (!ret && daifmt)
 		ret = snd_soc_dai_set_fmt(dai, daifmt);
 
+	if (ret == -ENOTSUPP) {
+		dev_dbg(dai->dev, "ASoC: set_fmt is not supported\n");
+		ret = 0;
+	}
+
 	if (!ret && set->sysclk)
 		ret = snd_soc_dai_set_sysclk(dai, 0, set->sysclk, 0);
 
-- 
cgit 


From cdcfcac968a1ec648434892b6addd80e66a5a892 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Thu, 17 Oct 2013 22:50:59 -0700
Subject: ASoC: rcar: add rsnd_scu_hpbif_is_enable()

Current SSI needs RSND_SSI_DEPENDENT flag to
decide dependent/independent mode.
And SCU needs RSND_SCU_USE_HPBIF flag
to decide HPBIF is enable/disable.
But these 2 means same things.

This patch adds new rsnd_scu_hpbif_is_enable()
function, and merges above methods.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/sound/rcar_snd.h |  1 -
 sound/soc/sh/rcar/rsnd.h |  1 +
 sound/soc/sh/rcar/scu.c  | 12 +++++++++---
 sound/soc/sh/rcar/ssi.c  |  8 +++++---
 4 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/include/sound/rcar_snd.h b/include/sound/rcar_snd.h
index fe66533e9b7a..6b4211c256b3 100644
--- a/include/sound/rcar_snd.h
+++ b/include/sound/rcar_snd.h
@@ -36,7 +36,6 @@
 #define RSND_SSI_CLK_PIN_SHARE		(1 << 31)
 #define RSND_SSI_CLK_FROM_ADG		(1 << 30) /* clock parent is master */
 #define RSND_SSI_SYNC			(1 << 29) /* SSI34_sync etc */
-#define RSND_SSI_DEPENDENT		(1 << 28) /* SSI needs SRU/SCU */
 
 #define RSND_SSI_PLAY			(1 << 24)
 
diff --git a/sound/soc/sh/rcar/rsnd.h b/sound/soc/sh/rcar/rsnd.h
index 3868aaf41cc4..5feb67ca2d24 100644
--- a/sound/soc/sh/rcar/rsnd.h
+++ b/sound/soc/sh/rcar/rsnd.h
@@ -281,6 +281,7 @@ int rsnd_scu_probe(struct platform_device *pdev,
 void rsnd_scu_remove(struct platform_device *pdev,
 		     struct rsnd_priv *priv);
 struct rsnd_mod *rsnd_scu_mod_get(struct rsnd_priv *priv, int id);
+bool rsnd_scu_hpbif_is_enable(struct rsnd_mod *mod);
 #define rsnd_scu_nr(priv) ((priv)->scu_nr)
 
 /*
diff --git a/sound/soc/sh/rcar/scu.c b/sound/soc/sh/rcar/scu.c
index 2df2e9150b89..1ab1bce6be7f 100644
--- a/sound/soc/sh/rcar/scu.c
+++ b/sound/soc/sh/rcar/scu.c
@@ -146,20 +146,26 @@ static int rsnd_scu_set_hpbif(struct rsnd_priv *priv,
 	return 0;
 }
 
+bool rsnd_scu_hpbif_is_enable(struct rsnd_mod *mod)
+{
+	struct rsnd_scu *scu = rsnd_mod_to_scu(mod);
+	u32 flags = rsnd_scu_mode_flags(scu);
+
+	return !!(flags & RSND_SCU_USE_HPBIF);
+}
+
 static int rsnd_scu_start(struct rsnd_mod *mod,
 			  struct rsnd_dai *rdai,
 			  struct rsnd_dai_stream *io)
 {
 	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
-	struct rsnd_scu *scu = rsnd_mod_to_scu(mod);
 	struct device *dev = rsnd_priv_to_dev(priv);
-	u32 flags = rsnd_scu_mode_flags(scu);
 	int ret;
 
 	/*
 	 * SCU will be used if it has RSND_SCU_USE_HPBIF flags
 	 */
-	if (!(flags & RSND_SCU_USE_HPBIF)) {
+	if (!rsnd_scu_hpbif_is_enable(mod)) {
 		/* it use PIO transter */
 		dev_dbg(dev, "%s%d is not used\n",
 			rsnd_mod_name(mod), rsnd_mod_id(mod));
diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index fae26d3f79d2..7613256c9840 100644
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -106,6 +106,7 @@ static void rsnd_ssi_mode_init(struct rsnd_priv *priv,
 {
 	struct device *dev = rsnd_priv_to_dev(priv);
 	struct rsnd_ssi *ssi;
+	struct rsnd_mod *scu;
 	u32 flags;
 	u32 val;
 	int i;
@@ -116,13 +117,14 @@ static void rsnd_ssi_mode_init(struct rsnd_priv *priv,
 	ssiu->ssi_mode0 = 0;
 	for_each_rsnd_ssi(ssi, priv, i) {
 		flags = rsnd_ssi_mode_flags(ssi);
+		scu   = rsnd_scu_mod_get(priv, rsnd_mod_id(&ssi->mod));
 
 		/* see also BUSIF_MODE */
-		if (!(flags & RSND_SSI_DEPENDENT)) {
+		if (rsnd_scu_hpbif_is_enable(scu)) {
+			dev_dbg(dev, "SSI%d uses DEPENDENT mode\n", i);
+		} else {
 			ssiu->ssi_mode0 |= (1 << i);
 			dev_dbg(dev, "SSI%d uses INDEPENDENT mode\n", i);
-		} else {
-			dev_dbg(dev, "SSI%d uses DEPENDENT mode\n", i);
 		}
 	}
 
-- 
cgit 


From 92eba04e4bcd469518cc759ac1bf1a49acaa5cc1 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Thu, 17 Oct 2013 22:51:40 -0700
Subject: ASoC: rcar: remove RSND_SSI_CLK_FROM_ADG

R-Car sound has clock pin for each SSI, and sometimes,
these pins are shared with paired SSI.
It may sometimes become "SSI-A clock pin is master" and
"SSI-B clock pin is slave", but "SSI-A/B clock pins are shared".
SSI-B needs SSI-A clock in this case.

Current R-Car sound driver is using RSND_SSI_xxx flag
to control this kind of shared pin behavior.

But, this information, especially clock master setting,
can be got from ASoC set_fmt settings.
This patch removes rsnd_ssi_mode_init() and extend rsnd_ssi_mode_set()
to controlling pin settings via .set_fmt.

This patch doesn't removes RSND_SSI_CLK_FROM_ADG flag at this point
to avoid conflict branch merging between ASoC <-> SH-ARM.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/sh/rcar/ssi.c | 52 +++++++++++++++++++------------------------------
 1 file changed, 20 insertions(+), 32 deletions(-)

diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index 7613256c9840..b71cf9d7dd3f 100644
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -101,31 +101,30 @@ struct rsnd_ssiu {
 #define rsnd_ssi_to_ssiu(ssi)\
 	(((struct rsnd_ssiu *)((ssi) - rsnd_mod_id(&(ssi)->mod))) - 1)
 
-static void rsnd_ssi_mode_init(struct rsnd_priv *priv,
-			       struct rsnd_ssiu *ssiu)
+static void rsnd_ssi_mode_set(struct rsnd_priv *priv,
+			      struct rsnd_dai *rdai,
+			      struct rsnd_ssi *ssi)
 {
 	struct device *dev = rsnd_priv_to_dev(priv);
-	struct rsnd_ssi *ssi;
 	struct rsnd_mod *scu;
+	struct rsnd_ssiu *ssiu = rsnd_ssi_to_ssiu(ssi);
+	int id = rsnd_mod_id(&ssi->mod);
 	u32 flags;
 	u32 val;
-	int i;
+
+	scu   = rsnd_scu_mod_get(priv, rsnd_mod_id(&ssi->mod));
 
 	/*
 	 * SSI_MODE0
 	 */
-	ssiu->ssi_mode0 = 0;
-	for_each_rsnd_ssi(ssi, priv, i) {
-		flags = rsnd_ssi_mode_flags(ssi);
-		scu   = rsnd_scu_mod_get(priv, rsnd_mod_id(&ssi->mod));
-
-		/* see also BUSIF_MODE */
-		if (rsnd_scu_hpbif_is_enable(scu)) {
-			dev_dbg(dev, "SSI%d uses DEPENDENT mode\n", i);
-		} else {
-			ssiu->ssi_mode0 |= (1 << i);
-			dev_dbg(dev, "SSI%d uses INDEPENDENT mode\n", i);
-		}
+
+	/* see also BUSIF_MODE */
+	if (rsnd_scu_hpbif_is_enable(scu)) {
+		ssiu->ssi_mode0 &= ~(1 << id);
+		dev_dbg(dev, "SSI%d uses DEPENDENT mode\n", id);
+	} else {
+		ssiu->ssi_mode0 |= (1 << id);
+		dev_dbg(dev, "SSI%d uses INDEPENDENT mode\n", id);
 	}
 
 	/*
@@ -134,7 +133,7 @@ static void rsnd_ssi_mode_init(struct rsnd_priv *priv,
 #define ssi_parent_set(p, sync, adg, ext)		\
 	do {						\
 		ssi->parent = ssiu->ssi + p;		\
-		if (flags & RSND_SSI_CLK_FROM_ADG)	\
+		if (rsnd_rdai_is_clk_master(rdai))	\
 			val = adg;			\
 		else					\
 			val = ext;			\
@@ -142,15 +141,11 @@ static void rsnd_ssi_mode_init(struct rsnd_priv *priv,
 			val |= sync;			\
 	} while (0)
 
-	ssiu->ssi_mode1 = 0;
-	for_each_rsnd_ssi(ssi, priv, i) {
-		flags = rsnd_ssi_mode_flags(ssi);
-
-		if (!(flags & RSND_SSI_CLK_PIN_SHARE))
-			continue;
+	flags = rsnd_ssi_mode_flags(ssi);
+	if (flags & RSND_SSI_CLK_PIN_SHARE) {
 
 		val = 0;
-		switch (i) {
+		switch (id) {
 		case 1:
 			ssi_parent_set(0, (1 << 4), (0x2 << 0), (0x1 << 0));
 			break;
@@ -167,11 +162,6 @@ static void rsnd_ssi_mode_init(struct rsnd_priv *priv,
 
 		ssiu->ssi_mode1 |= val;
 	}
-}
-
-static void rsnd_ssi_mode_set(struct rsnd_ssi *ssi)
-{
-	struct rsnd_ssiu *ssiu = rsnd_ssi_to_ssiu(ssi);
 
 	rsnd_mod_write(&ssi->mod, SSI_MODE0, ssiu->ssi_mode0);
 	rsnd_mod_write(&ssi->mod, SSI_MODE1, ssiu->ssi_mode1);
@@ -381,7 +371,7 @@ static int rsnd_ssi_init(struct rsnd_mod *mod,
 	ssi->cr_own	= cr;
 	ssi->err	= -1; /* ignore 1st error */
 
-	rsnd_ssi_mode_set(ssi);
+	rsnd_ssi_mode_set(priv, rdai, ssi);
 
 	dev_dbg(dev, "%s.%d init\n", rsnd_mod_name(mod), rsnd_mod_id(mod));
 
@@ -708,8 +698,6 @@ int rsnd_ssi_probe(struct platform_device *pdev,
 		rsnd_mod_init(priv, &ssi->mod, ops, i);
 	}
 
-	rsnd_ssi_mode_init(priv, ssiu);
-
 	dev_dbg(dev, "ssi probed\n");
 
 	return 0;
-- 
cgit 


From 1f1b65796ef882bb9101d22b17e1a1824b3a6489 Mon Sep 17 00:00:00 2001
From: Jean-Francois Moine <moinejf@free.fr>
Date: Fri, 18 Oct 2013 20:34:52 +0200
Subject: ASoC: kirkwood: prefer external clock over internal clock

When there is an external clock, always use this one.
This prevents the two Dove audio devices to use the same DCO clock
at different rates.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/kirkwood/kirkwood-i2s.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/kirkwood/kirkwood-i2s.c b/sound/soc/kirkwood/kirkwood-i2s.c
index 3e59af983527..d0504a2d8c63 100644
--- a/sound/soc/kirkwood/kirkwood-i2s.c
+++ b/sound/soc/kirkwood/kirkwood-i2s.c
@@ -103,7 +103,7 @@ static void kirkwood_set_rate(struct snd_soc_dai *dai,
 {
 	uint32_t clks_ctrl;
 
-	if (rate == 44100 || rate == 48000 || rate == 96000) {
+	if (IS_ERR(priv->extclk)) {
 		/* use internal dco for the supported rates
 		 * defined in kirkwood_i2s_dai */
 		dev_dbg(dai->dev, "%s: dco set rate = %lu\n",
-- 
cgit 


From 7b09eea52939d2b979f19de40e34b8670feff4c5 Mon Sep 17 00:00:00 2001
From: Brian Austin <brian.austin@cirrus.com>
Date: Fri, 18 Oct 2013 14:30:01 -0500
Subject: ASoC: cs42l73: Add Device Tree support for CS42L73

This patch adds support for device tree for the CS42L73 CODEC

Signed-off-by: Brian Austin <brian.austin@cirrus.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 .../devicetree/bindings/sound/cs42l73.txt          | 22 ++++++++++++++++
 sound/soc/codecs/cs42l73.c                         | 29 ++++++++++++++++++++--
 2 files changed, 49 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/sound/cs42l73.txt

diff --git a/Documentation/devicetree/bindings/sound/cs42l73.txt b/Documentation/devicetree/bindings/sound/cs42l73.txt
new file mode 100644
index 000000000000..80ae910dbf6c
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/cs42l73.txt
@@ -0,0 +1,22 @@
+CS42L73 audio CODEC
+
+Required properties:
+
+  - compatible : "cirrus,cs42l73"
+
+  - reg : the I2C address of the device for I2C
+
+Optional properties:
+
+  - reset_gpio : a GPIO spec for the reset pin.
+  - chgfreq    : Charge Pump Frequency values 0x00-0x0F
+
+
+Example:
+
+codec: cs42l73@4a {
+	compatible = "cirrus,cs42l73";
+	reg = <0x4a>;
+	reset_gpio = <&gpio 10 0>;
+	chgfreq = <0x05>;
+};
\ No newline at end of file
diff --git a/sound/soc/codecs/cs42l73.c b/sound/soc/codecs/cs42l73.c
index 89efc3c6aefc..549d5d6a3fef 100644
--- a/sound/soc/codecs/cs42l73.c
+++ b/sound/soc/codecs/cs42l73.c
@@ -17,7 +17,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/delay.h>
-#include <linux/gpio.h>
+#include <linux/of_gpio.h>
 #include <linux/pm.h>
 #include <linux/i2c.h>
 #include <linux/regmap.h>
@@ -1416,6 +1416,7 @@ static int cs42l73_i2c_probe(struct i2c_client *i2c_client,
 	int ret;
 	unsigned int devid = 0;
 	unsigned int reg;
+	u32 val32;
 
 	cs42l73 = devm_kzalloc(&i2c_client->dev, sizeof(struct cs42l73_private),
 			       GFP_KERNEL);
@@ -1431,8 +1432,25 @@ static int cs42l73_i2c_probe(struct i2c_client *i2c_client,
 		return ret;
 	}
 
-	if (pdata)
+	if (pdata) {
 		cs42l73->pdata = *pdata;
+	} else {
+		pdata = devm_kzalloc(&i2c_client->dev,
+				     sizeof(struct cs42l73_platform_data),
+				GFP_KERNEL);
+		if (!pdata) {
+			dev_err(&i2c_client->dev, "could not allocate pdata\n");
+			return -ENOMEM;
+		}
+		if (i2c_client->dev.of_node) {
+			if (of_property_read_u32(i2c_client->dev.of_node,
+				"chgfreq", &val32) >= 0)
+				pdata->chgfreq = val32;
+		}
+		pdata->reset_gpio = of_get_named_gpio(i2c_client->dev.of_node,
+						"reset-gpio", 0);
+		cs42l73->pdata = *pdata;
+	}
 
 	i2c_set_clientdata(i2c_client, cs42l73);
 
@@ -1493,6 +1511,12 @@ static int cs42l73_i2c_remove(struct i2c_client *client)
 	return 0;
 }
 
+static const struct of_device_id cs42l73_of_match[] = {
+	{ .compatible = "cirrus,cs42l73", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, cs42l73_of_match);
+
 static const struct i2c_device_id cs42l73_id[] = {
 	{"cs42l73", 0},
 	{}
@@ -1504,6 +1528,7 @@ static struct i2c_driver cs42l73_i2c_driver = {
 	.driver = {
 		   .name = "cs42l73",
 		   .owner = THIS_MODULE,
+		   .of_match_table = cs42l73_of_match,
 		   },
 	.id_table = cs42l73_id,
 	.probe = cs42l73_i2c_probe,
-- 
cgit 


From 5b025848e17a8659e2ebac21935daaa01799834b Mon Sep 17 00:00:00 2001
From: Sricharan R <r.sricharan@ti.com>
Date: Thu, 10 Oct 2013 13:20:13 +0530
Subject: ARM: dts: OMAP5: Remove clock-frequency field for cpu timers

The arm arch timers frequency are now programmed in the CNTFREQ
per-cpu register by the timer code using the secure API [1].
So remove the redundant entry from the dts.

[1] http://marc.info/?l=linux-omap&m=138139106312786&w=2

Signed-off-by: Sricharan R <r.sricharan@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap5.dtsi | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
index 6192c458bea1..6a558cedffd6 100644
--- a/arch/arm/boot/dts/omap5.dtsi
+++ b/arch/arm/boot/dts/omap5.dtsi
@@ -52,7 +52,6 @@
 			     <GIC_PPI 14 (GIC_CPU_MASK_RAW(3) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 11 (GIC_CPU_MASK_RAW(3) | IRQ_TYPE_LEVEL_LOW)>,
 			     <GIC_PPI 10 (GIC_CPU_MASK_RAW(3) | IRQ_TYPE_LEVEL_LOW)>;
-		clock-frequency = <6144000>;
 	};
 
 	gic: interrupt-controller@48211000 {
-- 
cgit 


From d2afcf09e6450e41b8987cf282ffde79c40ab401 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Mon, 7 Oct 2013 16:28:13 +0300
Subject: ARM: dts: omap3: Adapt USB OTG to generic PHY framework

The generic PHY framewrok expects different properties than the
old USB PHY framework. Supply those properties.

Fixes USB OTG port on GAT04 and N900 after the Generic PHY framework was
merged in greg/usb-next. [1]

[1] - https://lkml.org/lkml/2013/9/27/581

Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-gta04.dts | 2 ++
 arch/arm/boot/dts/omap3-n900.dts  | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-gta04.dts b/arch/arm/boot/dts/omap3-gta04.dts
index a84684a95891..b9b55c95a566 100644
--- a/arch/arm/boot/dts/omap3-gta04.dts
+++ b/arch/arm/boot/dts/omap3-gta04.dts
@@ -131,6 +131,8 @@
 &usb_otg_hs {
 	interface-type = <0>;
 	usb-phy = <&usb2_phy>;
+	phys = <&usb2_phy>;
+	phy-names = "usb2-phy";
 	mode = <3>;
 	power = <50>;
 };
diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index d64fa04e83f6..e13b697f8bce 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -87,6 +87,8 @@
 &usb_otg_hs {
 	interface-type = <0>;
 	usb-phy = <&usb2_phy>;
+	phys = <&usb2_phy>;
+	phy-names = "usb2-phy";
 	mode = <2>;
 	power = <50>;
 };
-- 
cgit 


From f12ecbe2ea3c01b61e93af815723939a27511abc Mon Sep 17 00:00:00 2001
From: Rajendra Nayak <rnayak@ti.com>
Date: Tue, 15 Oct 2013 12:37:50 +0530
Subject: ARM: dts: omap: Add reset/idle on init bindings for OMAP

On OMAP we have co-processor IPs, memory controllers,
GPIOs which control regulators and power switches to
PMIC, and SoC internal Bus IPs, some or most of which
should either not be reset or idled or both at init.
(In some cases there are erratas which prevent an IP
from being reset)
Have a way to pass this information from DT.

Update the am33xx/omap4 and omap5 dtsi files with the
new bindings for modules which either should not be
idled. reset or both. A later patch would cleanup the
same information that exists today as part of the hwmod
data files.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 Documentation/devicetree/bindings/arm/omap/omap.txt | 3 ++-
 arch/arm/boot/dts/am33xx.dtsi                       | 2 ++
 arch/arm/boot/dts/omap4.dtsi                        | 3 +++
 arch/arm/boot/dts/omap5.dtsi                        | 2 ++
 4 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/arm/omap/omap.txt b/Documentation/devicetree/bindings/arm/omap/omap.txt
index 91b7049affa1..808c1543b0f8 100644
--- a/Documentation/devicetree/bindings/arm/omap/omap.txt
+++ b/Documentation/devicetree/bindings/arm/omap/omap.txt
@@ -21,7 +21,8 @@ Required properties:
 Optional properties:
 - ti,no_idle_on_suspend: When present, it prevents the PM to idle the module
   during suspend.
-
+- ti,no-reset-on-init: When present, the module should not be reset at init
+- ti,no-idle-on-init: When present, the module should not be idled at init
 
 Example:
 
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 7db3c81d1563..58cf5b91a118 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -674,6 +674,7 @@
 			reg = <0x44d00000 0x4000	/* M3 UMEM */
 			       0x44d80000 0x2000>;	/* M3 DMEM */
 			ti,hwmods = "wkup_m3";
+			ti,no-reset-on-init;
 		};
 
 		elm: elm@48080000 {
@@ -713,6 +714,7 @@
 		gpmc: gpmc@50000000 {
 			compatible = "ti,am3352-gpmc";
 			ti,hwmods = "gpmc";
+			ti,no-idle-on-init;
 			reg = <0x50000000 0x2000>;
 			interrupts = <100>;
 			gpmc,num-cs = <7>;
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 6be1f5678f1a..6ca45b0d346b 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -214,6 +214,7 @@
 			gpmc,num-cs = <8>;
 			gpmc,num-waitpins = <4>;
 			ti,hwmods = "gpmc";
+			ti,no-idle-on-init;
 		};
 
 		uart1: serial@4806a000 {
@@ -492,6 +493,7 @@
 			reg = <0x4c000000 0x100>;
 			interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "emif1";
+			ti,no-idle-on-init;
 			phy-type = <1>;
 			hw-caps-read-idle-ctrl;
 			hw-caps-ll-interface;
@@ -503,6 +505,7 @@
 			reg = <0x4d000000 0x100>;
 			interrupts = <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "emif2";
+			ti,no-idle-on-init;
 			phy-type = <1>;
 			hw-caps-read-idle-ctrl;
 			hw-caps-ll-interface;
diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
index 6a558cedffd6..f518ec6b6e49 100644
--- a/arch/arm/boot/dts/omap5.dtsi
+++ b/arch/arm/boot/dts/omap5.dtsi
@@ -606,6 +606,7 @@
 		emif1: emif@4c000000 {
 			compatible	= "ti,emif-4d5";
 			ti,hwmods	= "emif1";
+			ti,no-idle-on-init;
 			phy-type	= <2>; /* DDR PHY type: Intelli PHY */
 			reg = <0x4c000000 0x400>;
 			interrupts = <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>;
@@ -617,6 +618,7 @@
 		emif2: emif@4d000000 {
 			compatible	= "ti,emif-4d5";
 			ti,hwmods	= "emif2";
+			ti,no-idle-on-init;
 			phy-type	= <2>; /* DDR PHY type: Intelli PHY */
 			reg = <0x4d000000 0x400>;
 			interrupts = <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
-- 
cgit 


From 6046adb6ad701026c10adeac8d6a4138895f12e5 Mon Sep 17 00:00:00 2001
From: Rajendra Nayak <rnayak@ti.com>
Date: Wed, 9 Oct 2013 15:42:01 +0530
Subject: ARM: dts: am335x-evmsk: Do not reset gpio0

Do not reset GPIO0 at  boot-up because GPIO0 is used
on AM335x EVM-SK to control VTT regulators on DDR3.

Without this EVM-SK boards fail to boot-up because
of DDR3 corruption.

Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am335x-evmsk.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts
index 5f12b28dd593..1a7e0d925965 100644
--- a/arch/arm/boot/dts/am335x-evmsk.dts
+++ b/arch/arm/boot/dts/am335x-evmsk.dts
@@ -433,3 +433,7 @@
 &aes {
 	status = "okay";
 };
+
+&gpio0 {
+	ti,no-reset-on-init;
+};
-- 
cgit 


From c1bac171c4f203101611110869bd2511c8153974 Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Thu, 10 Oct 2013 11:44:41 -0500
Subject: ARM: dts: omap4-panda-es: Do not reset gpio1

Do not reset GPIO1 at boot-up because GPIO 7 in GPIO1 block is used on
OMAP4460 PandaBoard-ES to select voltage register in TPS62361 which
supplies VDD_MPU.

Without this, OMAP4460 PandaBoard-ES boards fail to boot-up because
MPU voltage switches over to VSET0 voltage value (boot voltage) which
is not sufficient to operate the device at OPP100.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap4-panda-es.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/omap4-panda-es.dts b/arch/arm/boot/dts/omap4-panda-es.dts
index 56c435468e94..816d1c95b592 100644
--- a/arch/arm/boot/dts/omap4-panda-es.dts
+++ b/arch/arm/boot/dts/omap4-panda-es.dts
@@ -62,3 +62,7 @@
 		gpios = <&gpio1 8 GPIO_ACTIVE_HIGH>;
 	};
 };
+
+&gpio1 {
+	 ti,no-reset-on-init;
+};
-- 
cgit 


From 46a25f1283aba55182cf5684fe217b0d5ca4e5f6 Mon Sep 17 00:00:00 2001
From: Kishon Vijay Abraham I <kishon@ti.com>
Date: Thu, 10 Oct 2013 16:19:53 +0530
Subject: ARM: dts: omap5-uevm: remove always_on, boot_on from smps10_out1

smps10 should be enabled only in the case of host mode. So stop
doing always_on, boot_on from smps10_out1. The driver will enable
it in host mode.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap5-uevm.dts | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts
index d784b3a00410..e06a04a63664 100644
--- a/arch/arm/boot/dts/omap5-uevm.dts
+++ b/arch/arm/boot/dts/omap5-uevm.dts
@@ -334,8 +334,6 @@
 					regulator-name = "smps10_out1";
 					regulator-min-microvolt = <5000000>;
 					regulator-max-microvolt = <5000000>;
-					regulator-always-on;
-					regulator-boot-on;
 				};
 
 				ldo1_reg: ldo1 {
-- 
cgit 


From c47ee6ee8b93a41428846f86fa36dc80cee432ce Mon Sep 17 00:00:00 2001
From: George Cherian <george.cherian@ti.com>
Date: Thu, 10 Oct 2013 16:19:54 +0530
Subject: ARM: dts: OMAP5: Add dr_mode for dwc3

Added dr_mode property in dwc3 and set its default mode to device.

Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap5.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
index f518ec6b6e49..53686e46f482 100644
--- a/arch/arm/boot/dts/omap5.dtsi
+++ b/arch/arm/boot/dts/omap5.dtsi
@@ -649,6 +649,7 @@
 				reg = <0x4a030000 0x10000>;
 				interrupts = <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>;
 				usb-phy = <&usb2_phy>, <&usb3_phy>;
+				dr_mode = "peripheral";
 				tx-fifo-resize;
 			};
 		};
-- 
cgit 


From 9e3269b8c68cef55a35146d32b2adde1009ce075 Mon Sep 17 00:00:00 2001
From: Lokesh Vutla <lokeshvutla@ti.com>
Date: Fri, 11 Oct 2013 00:44:53 +0530
Subject: ARM: dts: AM4372: Add L2, EDMA, mailbox, MMC and SHAM nodes

Populate nodes for l2-cache-controller, EDMA, mailbox,
mmc, sham.

Update as well DT properties for epwmss, aes, des.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am4372.dtsi | 210 +++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 209 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index a403172430bc..c328d5cd8145 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -19,6 +19,8 @@
 
 	aliases {
 		serial0 = &uart0;
+		ethernet0 = &cpsw_emac0;
+		ethernet1 = &cpsw_emac1;
 	};
 
 	cpus {
@@ -39,11 +41,42 @@
 		      <0x48240100 0x0100>;
 	};
 
+	l2-cache-controller@48242000 {
+		compatible = "arm,pl310-cache";
+		reg = <0x48242000 0x1000>;
+		cache-unified;
+		cache-level = <2>;
+	};
+
+	am43xx_pinmux: pinmux@44e10800 {
+		compatible = "pinctrl-single";
+		reg = <0x44e10800 0x31c>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+		pinctrl-single,register-width = <32>;
+		pinctrl-single,function-mask = <0xffffffff>;
+	};
+
 	ocp {
 		compatible = "simple-bus";
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges;
+		ti,hwmods = "l3_main";
+
+		edma: edma@49000000 {
+			compatible = "ti,edma3";
+			ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2";
+			reg =	<0x49000000 0x10000>,
+				<0x44e10f90 0x10>;
+			interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+					<GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>,
+					<GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
+			#dma-cells = <1>;
+			dma-channels = <64>;
+			ti,edma-regions = <4>;
+			ti,edma-slots = <256>;
+		};
 
 		uart0: serial@44e09000 {
 			compatible = "ti,am4372-uart","ti,omap2-uart";
@@ -92,6 +125,18 @@
 			status = "disabled";
 		};
 
+		mailbox: mailbox@480C8000 {
+			compatible = "ti,omap4-mailbox";
+			reg = <0x480C8000 0x200>;
+			interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
+			ti,hwmods = "mailbox";
+			ti,mbox-num-users = <4>;
+			ti,mbox-num-fifos = <8>;
+			ti,mbox-names = "wkup_m3";
+			ti,mbox-data = <0 0 0 0>;
+			status = "disabled";
+		};
+
 		timer1: timer@44e31000 {
 			compatible = "ti,am4372-timer-1ms","ti,am335x-timer-1ms";
 			reg = <0x44e31000 0x400>;
@@ -203,7 +248,6 @@
 			reg = <0x44e35000 0x1000>;
 			interrupts = <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
 			ti,hwmods = "wd_timer2";
-			status = "disabled";
 		};
 
 		gpio0: gpio@44e07000 {
@@ -318,6 +362,40 @@
 			status = "disabled";
 		};
 
+		mmc1: mmc@48060000 {
+			compatible = "ti,omap4-hsmmc";
+			reg = <0x48060000 0x1000>;
+			ti,hwmods = "mmc1";
+			ti,dual-volt;
+			ti,needs-special-reset;
+			dmas = <&edma 24
+				&edma 25>;
+			dma-names = "tx", "rx";
+			interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
+		mmc2: mmc@481d8000 {
+			compatible = "ti,omap4-hsmmc";
+			reg = <0x481d8000 0x1000>;
+			ti,hwmods = "mmc2";
+			ti,needs-special-reset;
+			dmas = <&edma 2
+				&edma 3>;
+			dma-names = "tx", "rx";
+			interrupts = <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
+		mmc3: mmc@47810000 {
+			compatible = "ti,omap4-hsmmc";
+			reg = <0x47810000 0x1000>;
+			ti,hwmods = "mmc3";
+			ti,needs-special-reset;
+			interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
+			status = "disabled";
+		};
+
 		spi1: spi@481a0000 {
 			compatible = "ti,am4372-mcspi","ti,omap4-mcspi";
 			reg = <0x481a0000 0x400>;
@@ -366,50 +444,173 @@
 				      GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH
 				      GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH
 				      GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>;
+			#address-cells = <1>;
+			#size-cells = <1>;
 			ti,hwmods = "cpgmac0";
 			status = "disabled";
+			cpdma_channels = <8>;
+			ale_entries = <1024>;
+			bd_ram_size = <0x2000>;
+			no_bd_ram = <0>;
+			rx_descs = <64>;
+			mac_control = <0x20>;
+			slaves = <2>;
+			active_slave = <0>;
+			cpts_clock_mult = <0x80000000>;
+			cpts_clock_shift = <29>;
+			ranges;
+
+			davinci_mdio: mdio@4a101000 {
+				compatible = "ti,am4372-mdio","ti,davinci_mdio";
+				reg = <0x4a101000 0x100>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				ti,hwmods = "davinci_mdio";
+				bus_freq = <1000000>;
+				status = "disabled";
+			};
+
+			cpsw_emac0: slave@4a100200 {
+				/* Filled in by U-Boot */
+				mac-address = [ 00 00 00 00 00 00 ];
+			};
+
+			cpsw_emac1: slave@4a100300 {
+				/* Filled in by U-Boot */
+				mac-address = [ 00 00 00 00 00 00 ];
+			};
 		};
 
 		epwmss0: epwmss@48300000 {
 			compatible = "ti,am4372-pwmss","ti,am33xx-pwmss";
 			reg = <0x48300000 0x10>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
 			ti,hwmods = "epwmss0";
 			status = "disabled";
+
+			ecap0: ecap@48300100 {
+				compatible = "ti,am4372-ecap","ti,am33xx-ecap";
+				reg = <0x48300100 0x80>;
+				ti,hwmods = "ecap0";
+				status = "disabled";
+			};
+
+			ehrpwm0: ehrpwm@48300200 {
+				compatible = "ti,am4372-ehrpwm","ti,am33xx-ehrpwm";
+				reg = <0x48300200 0x80>;
+				ti,hwmods = "ehrpwm0";
+				status = "disabled";
+			};
 		};
 
 		epwmss1: epwmss@48302000 {
 			compatible = "ti,am4372-pwmss","ti,am33xx-pwmss";
 			reg = <0x48302000 0x10>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
 			ti,hwmods = "epwmss1";
 			status = "disabled";
+
+			ecap1: ecap@48302100 {
+				compatible = "ti,am4372-ecap","ti,am33xx-ecap";
+				reg = <0x48302100 0x80>;
+				ti,hwmods = "ecap1";
+				status = "disabled";
+			};
+
+			ehrpwm1: ehrpwm@48302200 {
+				compatible = "ti,am4372-ehrpwm","ti,am33xx-ehrpwm";
+				reg = <0x48302200 0x80>;
+				ti,hwmods = "ehrpwm1";
+				status = "disabled";
+			};
 		};
 
 		epwmss2: epwmss@48304000 {
 			compatible = "ti,am4372-pwmss","ti,am33xx-pwmss";
 			reg = <0x48304000 0x10>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
 			ti,hwmods = "epwmss2";
 			status = "disabled";
+
+			ecap2: ecap@48304100 {
+				compatible = "ti,am4372-ecap","ti,am33xx-ecap";
+				reg = <0x48304100 0x80>;
+				ti,hwmods = "ecap2";
+				status = "disabled";
+			};
+
+			ehrpwm2: ehrpwm@48304200 {
+				compatible = "ti,am4372-ehrpwm","ti,am33xx-ehrpwm";
+				reg = <0x48304200 0x80>;
+				ti,hwmods = "ehrpwm2";
+				status = "disabled";
+			};
 		};
 
 		epwmss3: epwmss@48306000 {
 			compatible = "ti,am4372-pwmss","ti,am33xx-pwmss";
 			reg = <0x48306000 0x10>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
 			ti,hwmods = "epwmss3";
 			status = "disabled";
+
+			ehrpwm3: ehrpwm@48306200 {
+				compatible = "ti,am4372-ehrpwm","ti,am33xx-ehrpwm";
+				reg = <0x48306200 0x80>;
+				ti,hwmods = "ehrpwm3";
+				status = "disabled";
+			};
 		};
 
 		epwmss4: epwmss@48308000 {
 			compatible = "ti,am4372-pwmss","ti,am33xx-pwmss";
 			reg = <0x48308000 0x10>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
 			ti,hwmods = "epwmss4";
 			status = "disabled";
+
+			ehrpwm4: ehrpwm@48308200 {
+				compatible = "ti,am4372-ehrpwm","ti,am33xx-ehrpwm";
+				reg = <0x48308200 0x80>;
+				ti,hwmods = "ehrpwm4";
+				status = "disabled";
+			};
 		};
 
 		epwmss5: epwmss@4830a000 {
 			compatible = "ti,am4372-pwmss","ti,am33xx-pwmss";
 			reg = <0x4830a000 0x10>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges;
 			ti,hwmods = "epwmss5";
 			status = "disabled";
+
+			ehrpwm5: ehrpwm@4830a200 {
+				compatible = "ti,am4372-ehrpwm","ti,am33xx-ehrpwm";
+				reg = <0x4830a200 0x80>;
+				ti,hwmods = "ehrpwm5";
+				status = "disabled";
+			};
+		};
+
+		sham: sham@53100000 {
+			compatible = "ti,omap5-sham";
+			ti,hwmods = "sham";
+			reg = <0x53100000 0x300>;
+			dmas = <&edma 36>;
+			dma-names = "rx";
+			interrupts = <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>;
 		};
 
 		aes: aes@53501000 {
@@ -417,6 +618,9 @@
 			ti,hwmods = "aes";
 			reg = <0x53501000 0xa0>;
 			interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
+			dmas = <&edma 6
+				&edma 5>;
+			dma-names = "tx", "rx";
 		};
 
 		des: des@53701000 {
@@ -424,6 +628,10 @@
 			ti,hwmods = "des";
 			reg = <0x53701000 0xa0>;
 			interrupts = <GIC_SPI 130 IRQ_TYPE_LEVEL_HIGH>;
+			dmas = <&edma 34
+				&edma 33>;
+			dma-names = "tx", "rx";
 		};
+
 	};
 };
-- 
cgit 


From e54686e4c79a5b2e8d8c77317ac8ab08d3040935 Mon Sep 17 00:00:00 2001
From: Mugunthan V N <mugunthanvnm@ti.com>
Date: Fri, 11 Oct 2013 00:44:54 +0530
Subject: ARM: dts: AM4372: Update Support for EPOS EVM

-> Adding pinmux for cpsw, i2c0.
-> Enabling the modules that are present in AM4372 EPOS EVM
These modules are tested on AM4372 EPOS EVM.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am43x-epos-evm.dts | 168 +++++++++++++++++++++++++++++++++++
 include/dt-bindings/pinctrl/am43xx.h |  31 +++++++
 2 files changed, 199 insertions(+)
 create mode 100644 include/dt-bindings/pinctrl/am43xx.h

diff --git a/arch/arm/boot/dts/am43x-epos-evm.dts b/arch/arm/boot/dts/am43x-epos-evm.dts
index 74174d48f476..fbf9c4c7a94f 100644
--- a/arch/arm/boot/dts/am43x-epos-evm.dts
+++ b/arch/arm/boot/dts/am43x-epos-evm.dts
@@ -11,8 +11,176 @@
 /dts-v1/;
 
 #include "am4372.dtsi"
+#include <dt-bindings/pinctrl/am43xx.h>
+#include <dt-bindings/gpio/gpio.h>
 
 / {
 	model = "TI AM43x EPOS EVM";
 	compatible = "ti,am43x-epos-evm","ti,am4372","ti,am43";
+
+	vmmcsd_fixed: fixedregulator-sd {
+		compatible = "regulator-fixed";
+		regulator-name = "vmmcsd_fixed";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		enable-active-high;
+	};
+
+	am43xx_pinmux: pinmux@44e10800 {
+		cpsw_default: cpsw_default {
+			pinctrl-single,pins = <
+				/* Slave 1 */
+				0x10c (PIN_INPUT_PULLDOWN | MUX_MODE1)	/* mii1_crs.rmii1_crs */
+				0x110 (PIN_INPUT_PULLDOWN | MUX_MODE1)	/* mii1_rxerr.rmii1_rxerr */
+				0x114 (PIN_OUTPUT_PULLDOWN | MUX_MODE1)	/* mii1_txen.rmii1_txen */
+				0x118 (PIN_INPUT_PULLDOWN | MUX_MODE1)	/* mii1_rxdv.rmii1_rxdv */
+				0x124 (PIN_OUTPUT_PULLDOWN | MUX_MODE1)	/* mii1_txd1.rmii1_txd1 */
+				0x128 (PIN_OUTPUT_PULLDOWN | MUX_MODE1)	/* mii1_txd0.rmii1_txd0 */
+				0x13c (PIN_INPUT_PULLDOWN | MUX_MODE1)	/* mii1_rxd1.rmii1_rxd1 */
+				0x140 (PIN_INPUT_PULLDOWN | MUX_MODE1)	/* mii1_rxd0.rmii1_rxd0 */
+				0x144 (PIN_INPUT_PULLDOWN | MUX_MODE0)	/* rmii1_refclk.rmii1_refclk */
+			>;
+		};
+
+		cpsw_sleep: cpsw_sleep {
+			pinctrl-single,pins = <
+				/* Slave 1 reset value */
+				0x10c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+				0x110 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+				0x114 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+				0x118 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+				0x124 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+				0x128 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+				0x13c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+				0x140 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+				0x144 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			>;
+		};
+
+		davinci_mdio_default: davinci_mdio_default {
+			pinctrl-single,pins = <
+				/* MDIO */
+				0x148 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)	/* mdio_data.mdio_data */
+				0x14c (PIN_OUTPUT_PULLUP | MUX_MODE0)			/* mdio_clk.mdio_clk */
+			>;
+		};
+
+		davinci_mdio_sleep: davinci_mdio_sleep {
+			pinctrl-single,pins = <
+				/* MDIO reset value */
+				0x148 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+				0x14c (PIN_INPUT_PULLDOWN | MUX_MODE7)
+			>;
+		};
+
+		i2c0_pins: pinmux_i2c0_pins {
+			pinctrl-single,pins = <
+				0x188 (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)	/* i2c0_sda.i2c0_sda */
+				0x18c (PIN_INPUT_PULLUP | SLEWCTRL_FAST | MUX_MODE0)	/* i2c0_scl.i2c0_scl */
+			>;
+		};
+	};
+
+	matrix_keypad: matrix_keypad@0 {
+			compatible = "gpio-matrix-keypad";
+			debounce-delay-ms = <5>;
+			col-scan-delay-us = <2>;
+
+			row-gpios = <&gpio0 12 GPIO_ACTIVE_HIGH		/* Bank0, pin12 */
+				     &gpio0 13 GPIO_ACTIVE_HIGH		/* Bank0, pin13 */
+				     &gpio0 14 GPIO_ACTIVE_HIGH		/* Bank0, pin14 */
+				     &gpio0 15 GPIO_ACTIVE_HIGH>;	/* Bank0, pin15 */
+
+			col-gpios = <&gpio3 9 GPIO_ACTIVE_HIGH		/* Bank3, pin9 */
+				     &gpio3 10 GPIO_ACTIVE_HIGH		/* Bank3, pin10 */
+				     &gpio2 18 GPIO_ACTIVE_HIGH		/* Bank2, pin18 */
+				     &gpio2 19 GPIO_ACTIVE_HIGH>;	/* Bank2, pin19 */
+
+			linux,keymap = <0x00000201	/* P1 */
+				0x01000204	/* P4 */
+				0x02000207	/* P7 */
+				0x0300020a	/* NUMERIC_STAR */
+				0x00010202	/* P2 */
+				0x01010205	/* P5 */
+				0x02010208	/* P8 */
+				0x03010200	/* P0 */
+				0x00020203	/* P3 */
+				0x01020206	/* P6 */
+				0x02020209	/* P9 */
+				0x0302020b	/* NUMERIC_POUND */
+				0x00030067	/* UP */
+				0x0103006a	/* RIGHT */
+				0x0203006c	/* DOWN */
+				0x03030069>;	/* LEFT */
+		};
+};
+
+&mmc1 {
+	status = "okay";
+	vmmc-supply = <&vmmcsd_fixed>;
+	bus-width = <4>;
+};
+
+&mac {
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&cpsw_default>;
+	pinctrl-1 = <&cpsw_sleep>;
+	status = "okay";
+};
+
+&davinci_mdio {
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&davinci_mdio_default>;
+	pinctrl-1 = <&davinci_mdio_sleep>;
+	status = "okay";
+};
+
+&cpsw_emac0 {
+	phy_id = <&davinci_mdio>, <16>;
+	phy-mode = "rmii";
+};
+
+&cpsw_emac1 {
+	phy_id = <&davinci_mdio>, <1>;
+	phy-mode = "rmii";
+};
+
+&i2c0 {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins>;
+
+	at24@50 {
+		compatible = "at24,24c256";
+		pagesize = <64>;
+		reg = <0x50>;
+	};
+
+	pixcir_ts@5c {
+		compatible = "pixcir,pixcir_ts";
+		reg = <0x5c>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <17 0>;
+
+		attb-gpio = <&gpio1 17 GPIO_ACTIVE_HIGH>;
+
+		x-size = <1024>;
+		y-size = <768>;
+	};
+};
+
+&gpio0 {
+	status = "okay";
+};
+
+&gpio1 {
+	status = "okay";
+};
+
+&gpio2 {
+	status = "okay";
+};
+
+&gpio3 {
+	status = "okay";
 };
diff --git a/include/dt-bindings/pinctrl/am43xx.h b/include/dt-bindings/pinctrl/am43xx.h
new file mode 100644
index 000000000000..eb6c366adfba
--- /dev/null
+++ b/include/dt-bindings/pinctrl/am43xx.h
@@ -0,0 +1,31 @@
+/*
+ * This header provides constants specific to AM43XX pinctrl bindings.
+ */
+
+#ifndef _DT_BINDINGS_PINCTRL_AM43XX_H
+#define _DT_BINDINGS_PINCTRL_AM43XX_H
+
+#define MUX_MODE0	0
+#define MUX_MODE1	1
+#define MUX_MODE2	2
+#define MUX_MODE3	3
+#define MUX_MODE4	4
+#define MUX_MODE5	5
+#define MUX_MODE6	6
+#define MUX_MODE7	7
+
+#define PULL_DISABLE		(1 << 16)
+#define PULL_UP			(1 << 17)
+#define INPUT_EN		(1 << 18)
+#define SLEWCTRL_FAST		(1 << 19)
+#define DS0_PULL_UP_DOWN_EN	(1 << 27)
+
+#define PIN_OUTPUT		(PULL_DISABLE)
+#define PIN_OUTPUT_PULLUP	(PULL_UP)
+#define PIN_OUTPUT_PULLDOWN	0
+#define PIN_INPUT		(INPUT_EN | PULL_DISABLE)
+#define PIN_INPUT_PULLUP	(INPUT_EN | PULL_UP)
+#define PIN_INPUT_PULLDOWN	(INPUT_EN)
+
+#endif
+
-- 
cgit 


From 3f72f87566e84d79201dc5f71f68f06cb0fcf0da Mon Sep 17 00:00:00 2001
From: Pantelis Antoniou <panto@antoniou-consulting.com>
Date: Sun, 20 Oct 2013 20:04:08 +0300
Subject: ARM: dts: AM33XX: Add mcasp0 and mcasp1 device tree entries

Add missing mcasp entries in the am33xx.dtsi include file.

Signed-off-by: Pantelis Antoniou <panto@antoniou-consulting.com>
Signed-off-by: Darren Etheridge <detheridge@ti.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am33xx.dtsi | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 58cf5b91a118..861382ffa557 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -742,5 +742,29 @@
 			       <&edma 5>;
 			dma-names = "tx", "rx";
 		};
+
+		mcasp0: mcasp@48038000 {
+			compatible = "ti,am33xx-mcasp-audio";
+			ti,hwmods = "mcasp0";
+			reg = <0x48038000 0x2000>;
+			interrupts = <80>, <81>;
+			interrupts-names = "tx", "rx";
+			status = "disabled";
+			dmas = <&edma 8>,
+				<&edma 9>;
+			dma-names = "tx", "rx";
+		};
+
+		mcasp1: mcasp@4803C000 {
+			compatible = "ti,am33xx-mcasp-audio";
+			ti,hwmods = "mcasp1";
+			reg = <0x4803C000 0x2000>;
+			interrupts = <82>, <83>;
+			interrupts-names = "tx", "rx";
+			status = "disabled";
+			dmas = <&edma 10>,
+				<&edma 11>;
+			dma-names = "tx", "rx";
+		};
 	};
 };
-- 
cgit 


From 0bee55ab78a4450e5879c537097e97f3066dc14f Mon Sep 17 00:00:00 2001
From: Jyri Sarha <jsarha@ti.com>
Date: Sun, 20 Oct 2013 20:04:09 +0300
Subject: ARM: dts: AM33XX: mcasp: Add location for data port registers to
 reg-property

This patch adds a second tuple to reg property. The new property tuple
describes the memory location for data port registers mapped trough
L3 bus on am33xx. The both property tuples are named accordingly in
the reg-names property.

Signed-off-by: Hebbar, Gururaja <gururaja.hebbar@ti.com>
Signed-off-by: Darren Etheridge <detheridge@ti.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am33xx.dtsi | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 861382ffa557..3465d4b116af 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -746,7 +746,9 @@
 		mcasp0: mcasp@48038000 {
 			compatible = "ti,am33xx-mcasp-audio";
 			ti,hwmods = "mcasp0";
-			reg = <0x48038000 0x2000>;
+			reg = <0x48038000 0x2000>,
+			      <0x46000000 0x400000>;
+			reg-names = "mpu", "dat";
 			interrupts = <80>, <81>;
 			interrupts-names = "tx", "rx";
 			status = "disabled";
@@ -758,7 +760,9 @@
 		mcasp1: mcasp@4803C000 {
 			compatible = "ti,am33xx-mcasp-audio";
 			ti,hwmods = "mcasp1";
-			reg = <0x4803C000 0x2000>;
+			reg = <0x4803C000 0x2000>,
+			      <0x46400000 0x400000>;
+			reg-names = "mpu", "dat";
 			interrupts = <82>, <83>;
 			interrupts-names = "tx", "rx";
 			status = "disabled";
-- 
cgit 


From f608f8dd31d2b5dc749e91e0f33fdfe44df4347d Mon Sep 17 00:00:00 2001
From: Darren Etheridge <detheridge@ti.com>
Date: Sun, 20 Oct 2013 20:04:10 +0300
Subject: ARM: dts: am335x-evm: Add audio support for am335x-evm.dts

Adds sound, tlv320aic3106, mcasp1, and am335x_evm_audio_pin nodes.

Signed-off-by: Darren Etheridge <detheridge@ti.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am335x-evm.dts | 50 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index eabacf9b8c31..987429436171 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -119,6 +119,19 @@
 			};
 		};
 	};
+
+	sound {
+		compatible = "ti,da830-evm-audio";
+		ti,model = "AM335x-EVM";
+		ti,audio-codec = <&tlv320aic3106>;
+		ti,mcasp-controller = <&mcasp1>;
+		ti,codec-clock-rate = <12000000>;
+		ti,audio-routing =
+			"Headphone Jack",       "HPLOUT",
+			"Headphone Jack",       "HPROUT",
+			"LINE1L",               "Line In",
+			"LINE1R",               "Line In";
+	};
 };
 
 &am33xx_pinmux {
@@ -279,6 +292,15 @@
 			0xec 0x00	/* lcd_ac_bias_en.lcd_ac_bias_en, OUTPUT | MODE0 */
 		>;
 	};
+
+	am335x_evm_audio_pins: am335x_evm_audio_pins {
+		pinctrl-single,pins = <
+			0x10c (PIN_INPUT_PULLDOWN | MUX_MODE4) /* mii1_rx_dv.mcasp1_aclkx */
+			0x110 (PIN_INPUT_PULLDOWN | MUX_MODE4) /* mii1_txd3.mcasp1_fsx */
+			0x108 (PIN_OUTPUT_PULLDOWN | MUX_MODE4) /* mii1_col.mcasp1_axr2 */
+			0x144 (PIN_INPUT_PULLDOWN | MUX_MODE4) /* rmii1_ref_clk.mcasp1_axr3 */
+		>;
+	};
 };
 
 &uart0 {
@@ -373,6 +395,18 @@
 		compatible = "ti,tmp275";
 		reg = <0x48>;
 	};
+
+	tlv320aic3106: tlv320aic3106@1b {
+		compatible = "ti,tlv320aic3106";
+		reg = <0x1b>;
+		status = "okay";
+
+		/* Regulators */
+		AVDD-supply = <&vaux2_reg>;
+		IOVDD-supply = <&vaux2_reg>;
+		DRVDD-supply = <&vaux2_reg>;
+		DVDD-supply = <&vbat>;
+	};
 };
 
 &lcdc {
@@ -476,6 +510,22 @@
 
 #include "tps65910.dtsi"
 
+&mcasp1 {
+		pinctrl-names = "default";
+		pinctrl-0 = <&am335x_evm_audio_pins>;
+
+		status = "okay";
+
+		op-mode = <0>;          /* MCASP_IIS_MODE */
+		tdm-slots = <2>;
+		/* 4 serializers */
+		serial-dir = <  /* 0: INACTIVE, 1: TX, 2: RX */
+			0 0 1 2
+		>;
+		tx-num-evt = <1>;
+		rx-num-evt = <1>;
+};
+
 &tps {
 	vcc1-supply = <&vbat>;
 	vcc2-supply = <&vbat>;
-- 
cgit 


From b452985bfa39be27f1eb836cd336f60324eb0be9 Mon Sep 17 00:00:00 2001
From: Peter Ujfalusi <peter.ujfalusi@ti.com>
Date: Sun, 20 Oct 2013 20:04:11 +0300
Subject: ARM: dts: am335x-evmsk: Audio support

AM335x EVM-SK have only support for audio playback (stereo jack on the
board) via tlv320aic3106 codec connected to McASP1.
Enable the support for audio playback on the board:
- McASP1 configuration
- tlv320aic3106 configuration
- Machine driver.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am335x-evmsk.dts | 48 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts
index 1a7e0d925965..03febf85fd2f 100644
--- a/arch/arm/boot/dts/am335x-evmsk.dts
+++ b/arch/arm/boot/dts/am335x-evmsk.dts
@@ -115,6 +115,17 @@
 		brightness-levels = <0 58 61 66 75 90 125 170 255>;
 		default-brightness-level = <8>;
 	};
+
+	sound {
+		compatible = "ti,da830-evm-audio";
+		ti,model = "AM335x-EVMSK";
+		ti,audio-codec = <&tlv320aic3106>;
+		ti,mcasp-controller = <&mcasp1>;
+		ti,codec-clock-rate = <24576000>;
+		ti,audio-routing =
+			"Headphone Jack",       "HPLOUT",
+			"Headphone Jack",       "HPROUT";
+	};
 };
 
 &am33xx_pinmux {
@@ -244,6 +255,15 @@
 			0x14c (PIN_INPUT_PULLDOWN | MUX_MODE7)
 		>;
 	};
+
+	mcasp1_pins: mcasp1_pins {
+		pinctrl-single,pins = <
+			0x10c (PIN_INPUT_PULLDOWN | MUX_MODE4) /* mii1_crs.mcasp1_aclkx */
+			0x110 (PIN_INPUT_PULLDOWN | MUX_MODE4) /* mii1_rxerr.mcasp1_fsx */
+			0x108 (PIN_OUTPUT_PULLDOWN | MUX_MODE4) /* mii1_col.mcasp1_axr2 */
+			0x144 (PIN_INPUT_PULLDOWN | MUX_MODE4) /* rmii1_ref_clk.mcasp1_axr3 */
+		>;
+	};
 };
 
 &uart0 {
@@ -291,6 +311,18 @@
 		st,max-limit-y = <550>;
 		st,max-limit-z = <750>;
 	};
+
+	tlv320aic3106: tlv320aic3106@1b {
+		compatible = "ti,tlv320aic3106";
+		reg = <0x1b>;
+		status = "okay";
+
+		/* Regulators */
+		AVDD-supply = <&vaux2_reg>;
+		IOVDD-supply = <&vaux2_reg>;
+		DRVDD-supply = <&vaux2_reg>;
+		DVDD-supply = <&vbat>;
+	};
 };
 
 &usb {
@@ -437,3 +469,19 @@
 &gpio0 {
 	ti,no-reset-on-init;
 };
+
+&mcasp1 {
+		pinctrl-names = "default";
+		pinctrl-0 = <&mcasp1_pins>;
+
+		status = "okay";
+
+		op-mode = <0>;          /* MCASP_IIS_MODE */
+		tdm-slots = <2>;
+		/* 4 serializers */
+		serial-dir = <  /* 0: INACTIVE, 1: TX, 2: RX */
+			0 0 1 2
+		>;
+		tx-num-evt = <1>;
+		rx-num-evt = <1>;
+};
-- 
cgit 


From b462b05ab6f3b1b6121446beb87a9eac5a37fd55 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Mon, 7 Oct 2013 13:46:50 +0300
Subject: ARM: dts: omap3-beagle: Adapt USB OTG to generic PHY framework

The generic PHY framewrok expects different properties than the
old USB PHY framework. Supply those properties.

Fixes USB OTG port on beagle after the Generic PHY framework was
merged in greg/usb-next. [1]

[1] - https://lkml.org/lkml/2013/9/27/581

Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-beagle.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-beagle.dts b/arch/arm/boot/dts/omap3-beagle.dts
index 7669c16259a5..fa532aaacc68 100644
--- a/arch/arm/boot/dts/omap3-beagle.dts
+++ b/arch/arm/boot/dts/omap3-beagle.dts
@@ -173,6 +173,8 @@
 &usb_otg_hs {
 	interface-type = <0>;
 	usb-phy = <&usb2_phy>;
+	phys = <&usb2_phy>;
+	phy-names = "usb2-phy";
 	mode = <3>;
 	power = <50>;
 };
-- 
cgit 


From 6abce9e63d44e94b16f08794fb6f5ad6d1025c79 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 4 Sep 2011 22:11:14 +0200
Subject: ALSA: dice: optimize bus reset handling

After a bus reset, do not stop the stream completely to avoid having to
reconfigure the device when restarting the stream.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice.c | 148 +++++++++++++++++++++++++++++++-------------------
 1 file changed, 93 insertions(+), 55 deletions(-)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index ac71b2b94eec..b081021064ed 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -559,24 +559,92 @@ static int dice_close(struct snd_pcm_substream *substream)
 	return 0;
 }
 
-static void dice_stop_stream(struct dice *dice)
+static int dice_stream_start_packets(struct dice *dice)
 {
-	__be32 channel;
+	int err;
+
+	if (dice->stream_running)
+		return 0;
 
-	if (dice->stream_running) {
-		dice_enable_clear(dice);
+	err = amdtp_out_stream_start(&dice->stream, dice->resources.channel,
+				     fw_parent_device(dice->unit)->max_speed);
+	if (err < 0)
+		return err;
 
+	err = dice_enable_set(dice);
+	if (err < 0) {
 		amdtp_out_stream_stop(&dice->stream);
+		return err;
+	}
 
-		channel = cpu_to_be32((u32)-1);
-		snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST,
-				   rx_address(dice, RX_ISOCHRONOUS),
-				   &channel, 4);
+	dice->stream_running = true;
 
-		fw_iso_resources_free(&dice->resources);
+	return 0;
+}
 
-		dice->stream_running = false;
+static int dice_stream_start(struct dice *dice)
+{
+	__be32 channel;
+	int err;
+
+	if (!dice->resources.allocated) {
+		err = fw_iso_resources_allocate(&dice->resources,
+				amdtp_out_stream_get_max_payload(&dice->stream),
+				fw_parent_device(dice->unit)->max_speed);
+		if (err < 0)
+			goto error;
+
+		channel = cpu_to_be32(dice->resources.channel);
+		err = snd_fw_transaction(dice->unit,
+					 TCODE_WRITE_QUADLET_REQUEST,
+					 rx_address(dice, RX_ISOCHRONOUS),
+					 &channel, 4);
+		if (err < 0)
+			goto err_resources;
 	}
+
+	err = dice_stream_start_packets(dice);
+	if (err < 0)
+		goto err_rx_channel;
+
+	return 0;
+
+err_rx_channel:
+	channel = cpu_to_be32((u32)-1);
+	snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST,
+			   rx_address(dice, RX_ISOCHRONOUS), &channel, 4);
+err_resources:
+	fw_iso_resources_free(&dice->resources);
+error:
+	return err;
+}
+
+static void dice_stream_stop_packets(struct dice *dice)
+{
+	if (!dice->stream_running)
+		return;
+
+	dice_enable_clear(dice);
+
+	amdtp_out_stream_stop(&dice->stream);
+
+	dice->stream_running = false;
+}
+
+static void dice_stream_stop(struct dice *dice)
+{
+	__be32 channel;
+
+	dice_stream_stop_packets(dice);
+
+	if (!dice->resources.allocated)
+		return;
+
+	channel = cpu_to_be32((u32)-1);
+	snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST,
+			   rx_address(dice, RX_ISOCHRONOUS), &channel, 4);
+
+	fw_iso_resources_free(&dice->resources);
 }
 
 static int dice_hw_params(struct snd_pcm_substream *substream,
@@ -586,7 +654,7 @@ static int dice_hw_params(struct snd_pcm_substream *substream,
 	int err;
 
 	mutex_lock(&dice->mutex);
-	dice_stop_stream(dice);
+	dice_stream_stop(dice);
 	mutex_unlock(&dice->mutex);
 
 	err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
@@ -608,7 +676,7 @@ static int dice_hw_free(struct snd_pcm_substream *substream)
 	struct dice *dice = substream->private_data;
 
 	mutex_lock(&dice->mutex);
-	dice_stop_stream(dice);
+	dice_stream_stop(dice);
 	mutex_unlock(&dice->mutex);
 
 	return snd_pcm_lib_free_vmalloc_buffer(substream);
@@ -617,42 +685,17 @@ static int dice_hw_free(struct snd_pcm_substream *substream)
 static int dice_prepare(struct snd_pcm_substream *substream)
 {
 	struct dice *dice = substream->private_data;
-	struct fw_device *device = fw_parent_device(dice->unit);
-	__be32 channel;
 	int err;
 
 	mutex_lock(&dice->mutex);
 
 	if (amdtp_out_streaming_error(&dice->stream))
-		dice_stop_stream(dice);
-
-	if (!dice->stream_running) {
-		err = fw_iso_resources_allocate(&dice->resources,
-				amdtp_out_stream_get_max_payload(&dice->stream),
-				device->max_speed);
-		if (err < 0)
-			goto error;
-
-		//TODO: RX_SEQ_START
-		channel = cpu_to_be32(dice->resources.channel);
-		err = snd_fw_transaction(dice->unit,
-					 TCODE_WRITE_QUADLET_REQUEST,
-					 rx_address(dice, RX_ISOCHRONOUS),
-					 &channel, 4);
-		if (err < 0)
-			goto err_resources;
-
-		err = amdtp_out_stream_start(&dice->stream,
-					     dice->resources.channel,
-					     device->max_speed);
-		if (err < 0)
-			goto err_resources;
-
-		err = dice_enable_set(dice);
-		if (err < 0)
-			goto err_stream;
+		dice_stream_stop_packets(dice);
 
-		dice->stream_running = true;
+	err = dice_stream_start(dice);
+	if (err < 0) {
+		mutex_unlock(&dice->mutex);
+		return err;
 	}
 
 	mutex_unlock(&dice->mutex);
@@ -660,15 +703,6 @@ static int dice_prepare(struct snd_pcm_substream *substream)
 	amdtp_out_stream_pcm_prepare(&dice->stream);
 
 	return 0;
-
-err_stream:
-	amdtp_out_stream_stop(&dice->stream);
-err_resources:
-	fw_iso_resources_free(&dice->resources);
-error:
-	mutex_unlock(&dice->mutex);
-
-	return err;
 }
 
 static int dice_trigger(struct snd_pcm_substream *substream, int cmd)
@@ -941,7 +975,7 @@ static void dice_remove(struct fw_unit *unit)
 
 	mutex_lock(&dice->mutex);
 	amdtp_out_stream_pcm_abort(&dice->stream);
-	dice_stop_stream(dice);
+	dice_stream_stop(dice);
 	dice_owner_clear(dice);
 	mutex_unlock(&dice->mutex);
 
@@ -953,8 +987,8 @@ static void dice_bus_reset(struct fw_unit *unit)
 	struct dice *dice = dev_get_drvdata(&unit->device);
 
 	mutex_lock(&dice->mutex);
+
 	/*
-	 * XXX is the following true?
 	 * On a bus reset, the DICE firmware disables streaming and then goes
 	 * off contemplating its own navel for hundreds of milliseconds before
 	 * it can react to any of our attempts to reenable streaming.  This
@@ -962,9 +996,13 @@ static void dice_bus_reset(struct fw_unit *unit)
 	 * to stop so that the application can restart them in an orderly
 	 * manner.
 	 */
-	dice_owner_update(dice);
 	amdtp_out_stream_pcm_abort(&dice->stream);
-	dice_stop_stream(dice);
+	dice_stream_stop_packets(dice);
+
+	dice_owner_update(dice);
+
+	fw_iso_resources_update(&dice->resources);
+
 	mutex_unlock(&dice->mutex);
 }
 
-- 
cgit 


From 341682cd4f5603fccbf559d201402539880c04a5 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 4 Sep 2011 22:12:06 +0200
Subject: ALSA: dice: allow all sample rates

Instead of forcing a constant 44.1 kHz, read the current sample rate
from the device when opening the PCM device.

Actually changing the sample rate requires some separate controller
application.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice.c | 55 +++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 42 insertions(+), 13 deletions(-)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index b081021064ed..d3f3eb7a546a 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -75,6 +75,7 @@
 #define  CLOCK_RATE_ANY_MID		0x00000800
 #define  CLOCK_RATE_ANY_HIGH		0x00000900
 #define  CLOCK_RATE_NONE		0x00000a00
+#define  CLOCK_RATE_SHIFT		8
 #define GLOBAL_ENABLE			0x050
 #define  ENABLE				0x00000001
 #define GLOBAL_STATUS			0x054
@@ -248,6 +249,16 @@ MODULE_DESCRIPTION("DICE driver");
 MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
 MODULE_LICENSE("GPL v2");
 
+static const unsigned int dice_rates[] = {
+	[0] =  32000,
+	[1] =  44100,
+	[2] =  48000,
+	[3] =  88200,
+	[4] =  96000,
+	[5] = 176400,
+	[6] = 192000,
+};
+
 static inline u64 global_address(struct dice *dice, unsigned int offset)
 {
 	return DICE_PRIVATE_SPACE + dice->global_offset + offset;
@@ -508,9 +519,6 @@ static int dice_open(struct snd_pcm_substream *substream)
 			SNDRV_PCM_INFO_INTERLEAVED |
 			SNDRV_PCM_INFO_BLOCK_TRANSFER,
 		.formats = AMDTP_OUT_PCM_FORMAT_BITS,
-		.rates = SNDRV_PCM_RATE_44100,
-		.rate_min = 44100,
-		.rate_max = 44100,
 		.buffer_bytes_max = 16 * 1024 * 1024,
 		.period_bytes_min = 1,
 		.period_bytes_max = UINT_MAX,
@@ -519,9 +527,20 @@ static int dice_open(struct snd_pcm_substream *substream)
 	};
 	struct dice *dice = substream->private_data;
 	struct snd_pcm_runtime *runtime = substream->runtime;
-	__be32 number_audio, number_midi;
+	__be32 clock_sel, number_audio, number_midi;
+	unsigned int rate;
 	int err;
 
+	err = snd_fw_transaction(dice->unit, TCODE_READ_QUADLET_REQUEST,
+				 global_address(dice, GLOBAL_CLOCK_SELECT),
+				 &clock_sel, 4);
+	if (err < 0)
+		return err;
+	rate = (be32_to_cpu(clock_sel) & CLOCK_RATE_MASK) >> CLOCK_RATE_SHIFT;
+	if (rate >= ARRAY_SIZE(dice_rates))
+		return -ENXIO;
+	rate = dice_rates[rate];
+
 	err = snd_fw_transaction(dice->unit, TCODE_READ_QUADLET_REQUEST,
 				 rx_address(dice, RX_NUMBER_AUDIO),
 				 &number_audio, 4);
@@ -534,10 +553,14 @@ static int dice_open(struct snd_pcm_substream *substream)
 		return err;
 
 	runtime->hw = hardware;
+
+	runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
+	snd_pcm_limit_hw_rates(runtime);
+
 	runtime->hw.channels_min = be32_to_cpu(number_audio);
 	runtime->hw.channels_max = be32_to_cpu(number_audio);
 
-	amdtp_out_stream_set_rate(&dice->stream, 44100);
+	amdtp_out_stream_set_rate(&dice->stream, rate);
 	amdtp_out_stream_set_pcm(&dice->stream, be32_to_cpu(number_audio));
 	amdtp_out_stream_set_midi(&dice->stream, be32_to_cpu(number_midi));
 
@@ -746,17 +769,9 @@ static int dice_create_pcm(struct dice *dice)
 		.page      = snd_pcm_lib_get_vmalloc_page,
 		.mmap      = snd_pcm_lib_mmap_vmalloc,
 	};
-	__be32 clock;
 	struct snd_pcm *pcm;
 	int err;
 
-	clock = cpu_to_be32(CLOCK_SOURCE_ARX1 | CLOCK_RATE_44100);
-	err = snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST,
-				 global_address(dice, GLOBAL_CLOCK_SELECT),
-				 &clock, 4);
-	if (err < 0)
-		return err;
-
 	err = snd_pcm_new(dice->card, "DICE", 0, 1, 0, &pcm);
 	if (err < 0)
 		return err;
@@ -897,6 +912,7 @@ static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id)
 {
 	struct snd_card *card;
 	struct dice *dice;
+	__be32 clock_sel;
 	int err;
 
 	err = snd_card_create(-1, NULL, THIS_MODULE, sizeof(*dice), &card);
@@ -938,6 +954,19 @@ static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id)
 
 	dice_card_strings(dice);
 
+	err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST,
+				 global_address(dice, GLOBAL_CLOCK_SELECT),
+				 &clock_sel, 4);
+	if (err < 0)
+		goto error;
+	clock_sel &= cpu_to_be32(~CLOCK_SOURCE_MASK);
+	clock_sel |= cpu_to_be32(CLOCK_SOURCE_ARX1);
+	err = snd_fw_transaction(unit, TCODE_WRITE_QUADLET_REQUEST,
+				 global_address(dice, GLOBAL_CLOCK_SELECT),
+				 &clock_sel, 4);
+	if (err < 0)
+		goto error;
+
 	err = dice_create_pcm(dice);
 	if (err < 0)
 		goto error;
-- 
cgit 


From d13109673ac49cd4b992df17238ee030be7ed7f0 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 4 Sep 2011 22:12:20 +0200
Subject: ALSA: dice: reduce noisy logging

The notification bits are not of general interest; log them only when
debugging.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index d3f3eb7a546a..02c7b5a42373 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -505,8 +505,8 @@ static void dice_notification(struct fw_card *card, struct fw_request *request,
 		fw_send_response(card, request, RCODE_ADDRESS_ERROR);
 		return;
 	}
-	dev_info(&dice->unit->device,
-		 "notification: %08x\n", be32_to_cpup(data));
+	dev_dbg(&dice->unit->device,
+		"notification: %08x\n", be32_to_cpup(data));
 	fw_send_response(card, request, RCODE_COMPLETE);
 }
 
-- 
cgit 


From e84d15f619c13e83b33023c84527ee35ef01b6b4 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 4 Sep 2011 22:12:48 +0200
Subject: ALSA: dice, firewire-lib: add blocking mode

Allow AMDTP output streams to use blocking mode.

Use it for DICE devices, because the old DICE-II chip will in some cases
not be able to lock to non-blocking streams (erratum E7).

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/amdtp.c | 54 +++++++++++++++++++++++++++-----------------------
 sound/firewire/amdtp.h |  7 ++++++-
 sound/firewire/dice.c  |  2 +-
 3 files changed, 36 insertions(+), 27 deletions(-)

diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index ea995af6d049..efb2e2947ce7 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -42,9 +42,6 @@ static void pcm_period_tasklet(unsigned long data);
 int amdtp_out_stream_init(struct amdtp_out_stream *s, struct fw_unit *unit,
 			  enum cip_out_flags flags)
 {
-	if (flags != CIP_NONBLOCKING)
-		return -EINVAL;
-
 	s->unit = fw_unit_get(unit);
 	s->flags = flags;
 	s->context = ERR_PTR(-1);
@@ -96,12 +93,20 @@ void amdtp_out_stream_set_rate(struct amdtp_out_stream *s, unsigned int rate)
 		return;
 
 	for (sfc = 0; sfc < ARRAY_SIZE(rate_info); ++sfc)
-		if (rate_info[sfc].rate == rate) {
-			s->sfc = sfc;
-			s->syt_interval = rate_info[sfc].syt_interval;
-			return;
-		}
+		if (rate_info[sfc].rate == rate)
+			goto sfc_found;
 	WARN_ON(1);
+	return;
+
+sfc_found:
+	s->sfc = sfc;
+	s->syt_interval = rate_info[sfc].syt_interval;
+
+	/* default buffering in the device */
+	s->transfer_delay = TRANSFER_DELAY_TICKS - TICKS_PER_CYCLE;
+	if (s->flags & CIP_BLOCKING)
+		/* additional buffering needed to adjust for no-data packets */
+		s->transfer_delay += TICKS_PER_SECOND * s->syt_interval / rate;
 }
 EXPORT_SYMBOL(amdtp_out_stream_set_rate);
 
@@ -110,25 +115,15 @@ EXPORT_SYMBOL(amdtp_out_stream_set_rate);
  * @s: the AMDTP output stream
  *
  * This function must not be called before the stream has been configured
- * with amdtp_out_stream_set_hw_params(), amdtp_out_stream_set_pcm(), and
+ * with amdtp_out_stream_set_rate(), amdtp_out_stream_set_pcm(), and
  * amdtp_out_stream_set_midi().
  */
 unsigned int amdtp_out_stream_get_max_payload(struct amdtp_out_stream *s)
 {
-	static const unsigned int max_data_blocks[] = {
-		[CIP_SFC_32000]  =  4,
-		[CIP_SFC_44100]  =  6,
-		[CIP_SFC_48000]  =  6,
-		[CIP_SFC_88200]  = 12,
-		[CIP_SFC_96000]  = 12,
-		[CIP_SFC_176400] = 23,
-		[CIP_SFC_192000] = 24,
-	};
-
 	s->data_block_quadlets = s->pcm_channels;
 	s->data_block_quadlets += DIV_ROUND_UP(s->midi_ports, 8);
 
-	return 8 + max_data_blocks[s->sfc] * 4 * s->data_block_quadlets;
+	return 8 + s->syt_interval * s->data_block_quadlets * 4;
 }
 EXPORT_SYMBOL(amdtp_out_stream_get_max_payload);
 
@@ -248,7 +243,7 @@ static unsigned int calculate_syt(struct amdtp_out_stream *s,
 	s->last_syt_offset = syt_offset;
 
 	if (syt_offset < TICKS_PER_CYCLE) {
-		syt_offset += TRANSFER_DELAY_TICKS - TICKS_PER_CYCLE;
+		syt_offset += s->transfer_delay;
 		syt = (cycle + syt_offset / TICKS_PER_CYCLE) << 12;
 		syt += syt_offset % TICKS_PER_CYCLE;
 
@@ -344,8 +339,17 @@ static void queue_out_packet(struct amdtp_out_stream *s, unsigned int cycle)
 		return;
 	index = s->packet_index;
 
-	data_blocks = calculate_data_blocks(s);
 	syt = calculate_syt(s, cycle);
+	if (!(s->flags & CIP_BLOCKING)) {
+		data_blocks = calculate_data_blocks(s);
+	} else {
+		if (syt != 0xffff) {
+			data_blocks = s->syt_interval;
+		} else {
+			data_blocks = 0;
+			syt = 0xffffff;
+		}
+	}
 
 	buffer = s->buffer.packets[index].buffer;
 	buffer[0] = cpu_to_be32(ACCESS_ONCE(s->source_node_id_field) |
@@ -455,9 +459,9 @@ static int queue_initial_skip_packets(struct amdtp_out_stream *s)
  * @speed: firewire speed code
  *
  * The stream cannot be started until it has been configured with
- * amdtp_out_stream_set_hw_params(), amdtp_out_stream_set_pcm(), and
- * amdtp_out_stream_set_midi(); and it must be started before any
- * PCM or MIDI device can be started.
+ * amdtp_out_stream_set_rate(), amdtp_out_stream_set_pcm(),
+ * amdtp_out_stream_set_midi(), and amdtp_out_stream_set_format();
+ * and it must be started before any PCM or MIDI device can be started.
  */
 int amdtp_out_stream_start(struct amdtp_out_stream *s, int channel, int speed)
 {
diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
index f6103d68c4b1..fd4ce3030279 100644
--- a/sound/firewire/amdtp.h
+++ b/sound/firewire/amdtp.h
@@ -11,9 +11,13 @@
  *	sample_rate/8000 samples, with rounding up or down to adjust
  *	for clock skew and left-over fractional samples.  This should
  *	be used if supported by the device.
+ * @CIP_BLOCKING: In blocking mode, each packet contains either zero or
+ *	SYT_INTERVAL samples, with these two types alternating so that
+ *	the overall sample rate comes out right.
  */
 enum cip_out_flags {
-	CIP_NONBLOCKING = 0,
+	CIP_NONBLOCKING	= 0x00,
+	CIP_BLOCKING	= 0x01,
 };
 
 /**
@@ -51,6 +55,7 @@ struct amdtp_out_stream {
 				 __be32 *buffer, unsigned int frames);
 
 	unsigned int syt_interval;
+	unsigned int transfer_delay;
 	unsigned int source_node_id_field;
 	struct iso_packets_buffer buffer;
 
diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 02c7b5a42373..63446f86cdd7 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -942,7 +942,7 @@ static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id)
 		goto err_notification_handler;
 	dice->resources.channels_mask = 0x00000000ffffffffuLL;
 
-	err = amdtp_out_stream_init(&dice->stream, unit, CIP_NONBLOCKING);
+	err = amdtp_out_stream_init(&dice->stream, unit, CIP_BLOCKING);
 	if (err < 0)
 		goto err_resources;
 
-- 
cgit 


From 4ed31f20bb5bb90f003c91734c6b9d18169ae27e Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 4 Sep 2011 22:13:09 +0200
Subject: ALSA: dice: fix hang when unplugging a running device

When aborting a PCM stream, the xrun is signaled only if the stream is
running.  When disconnecting a PCM stream, calling snd_card_disconnect()
too early would change the stream into a non-running state and thus
prevent the xrun from being noticed by user space.

To prevent this, move the snd_card_disconnect() call after the xrun.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 63446f86cdd7..d0575a96ea70 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -1000,12 +1000,15 @@ static void dice_remove(struct fw_unit *unit)
 {
 	struct dice *dice = dev_get_drvdata(&unit->device);
 
-	snd_card_disconnect(dice->card);
-
 	mutex_lock(&dice->mutex);
+
 	amdtp_out_stream_pcm_abort(&dice->stream);
+
+	snd_card_disconnect(dice->card);
+
 	dice_stream_stop(dice);
 	dice_owner_clear(dice);
+
 	mutex_unlock(&dice->mutex);
 
 	snd_card_free_when_closed(dice->card);
-- 
cgit 


From 0c29c9180fe14b0abb4bfc68b37dda66254689b3 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 4 Sep 2011 22:14:15 +0200
Subject: ALSA: dice: implement hwdep device

Implement the hwdep locking and notification mechanisms.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice.c | 225 +++++++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 203 insertions(+), 22 deletions(-)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index d0575a96ea70..7225878a09cc 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -5,6 +5,7 @@
  * Licensed under the terms of the GNU General Public License, version 2.
  */
 
+#include <linux/compat.h>
 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/firewire.h>
@@ -13,8 +14,11 @@
 #include <linux/mod_devicetable.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/wait.h>
 #include <sound/control.h>
 #include <sound/core.h>
+#include <sound/firewire.h>
 #include <sound/hwdep.h>
 #include <sound/initval.h>
 #include <sound/pcm.h>
@@ -233,13 +237,18 @@
 struct dice {
 	struct snd_card *card;
 	struct fw_unit *unit;
+	spinlock_t lock;
 	struct mutex mutex;
 	unsigned int global_offset;
 	unsigned int rx_offset;
 	struct fw_address_handler notification_handler;
 	int owner_generation;
+	int dev_lock_count; /* > 0 driver, < 0 userspace */
+	bool dev_lock_changed;
 	bool global_enabled;
 	bool stream_running;
+	wait_queue_head_t hwdep_wait;
+	u32 notification_bits;
 	struct snd_pcm_substream *pcm;
 	struct fw_iso_resources resources;
 	struct amdtp_out_stream stream;
@@ -259,6 +268,47 @@ static const unsigned int dice_rates[] = {
 	[6] = 192000,
 };
 
+static void dice_lock_changed(struct dice *dice)
+{
+	dice->dev_lock_changed = true;
+	wake_up(&dice->hwdep_wait);
+}
+
+static int dice_try_lock(struct dice *dice)
+{
+	int err;
+
+	spin_lock_irq(&dice->lock);
+
+	if (dice->dev_lock_count < 0) {
+		err = -EBUSY;
+		goto out;
+	}
+
+	if (dice->dev_lock_count++ == 0)
+		dice_lock_changed(dice);
+	err = 0;
+
+out:
+	spin_unlock_irq(&dice->lock);
+
+	return err;
+}
+
+static void dice_unlock(struct dice *dice)
+{
+	spin_lock_irq(&dice->lock);
+
+	if (WARN_ON(dice->dev_lock_count <= 0))
+		goto out;
+
+	if (--dice->dev_lock_count == 0)
+		dice_lock_changed(dice);
+
+out:
+	spin_unlock_irq(&dice->lock);
+}
+
 static inline u64 global_address(struct dice *dice, unsigned int offset)
 {
 	return DICE_PRIVATE_SPACE + dice->global_offset + offset;
@@ -496,6 +546,7 @@ static void dice_notification(struct fw_card *card, struct fw_request *request,
 			      void *data, size_t length, void *callback_data)
 {
 	struct dice *dice = callback_data;
+	unsigned long flags;
 
 	if (tcode != TCODE_WRITE_QUADLET_REQUEST) {
 		fw_send_response(card, request, RCODE_TYPE_ERROR);
@@ -505,9 +556,11 @@ static void dice_notification(struct fw_card *card, struct fw_request *request,
 		fw_send_response(card, request, RCODE_ADDRESS_ERROR);
 		return;
 	}
-	dev_dbg(&dice->unit->device,
-		"notification: %08x\n", be32_to_cpup(data));
+	spin_lock_irqsave(&dice->lock, flags);
+	dice->notification_bits |= be32_to_cpup(data);
+	spin_unlock_irqrestore(&dice->lock, flags);
 	fw_send_response(card, request, RCODE_COMPLETE);
+	wake_up(&dice->hwdep_wait);
 }
 
 static int dice_open(struct snd_pcm_substream *substream)
@@ -531,26 +584,32 @@ static int dice_open(struct snd_pcm_substream *substream)
 	unsigned int rate;
 	int err;
 
+	err = dice_try_lock(dice);
+	if (err < 0)
+		goto error;
+
 	err = snd_fw_transaction(dice->unit, TCODE_READ_QUADLET_REQUEST,
 				 global_address(dice, GLOBAL_CLOCK_SELECT),
 				 &clock_sel, 4);
 	if (err < 0)
-		return err;
+		goto err_lock;
 	rate = (be32_to_cpu(clock_sel) & CLOCK_RATE_MASK) >> CLOCK_RATE_SHIFT;
-	if (rate >= ARRAY_SIZE(dice_rates))
-		return -ENXIO;
+	if (rate >= ARRAY_SIZE(dice_rates)) {
+		err = -ENXIO;
+		goto err_lock;
+	}
 	rate = dice_rates[rate];
 
 	err = snd_fw_transaction(dice->unit, TCODE_READ_QUADLET_REQUEST,
 				 rx_address(dice, RX_NUMBER_AUDIO),
 				 &number_audio, 4);
 	if (err < 0)
-		return err;
+		goto err_lock;
 	err = snd_fw_transaction(dice->unit, TCODE_READ_QUADLET_REQUEST,
 				 rx_address(dice, RX_NUMBER_MIDI),
 				 &number_midi, 4);
 	if (err < 0)
-		return err;
+		goto err_lock;
 
 	runtime->hw = hardware;
 
@@ -568,17 +627,26 @@ static int dice_open(struct snd_pcm_substream *substream)
 					   SNDRV_PCM_HW_PARAM_PERIOD_TIME,
 					   5000, 8192000);
 	if (err < 0)
-		return err;
+		goto err_lock;
 
 	err = snd_pcm_hw_constraint_msbits(runtime, 0, 32, 24);
 	if (err < 0)
-		return err;
+		goto err_lock;
 
 	return 0;
+
+err_lock:
+	dice_unlock(dice);
+error:
+	return err;
 }
 
 static int dice_close(struct snd_pcm_substream *substream)
 {
+	struct dice *dice = substream->private_data;
+
+	dice_unlock(dice);
+
 	return 0;
 }
 
@@ -783,45 +851,156 @@ static int dice_create_pcm(struct dice *dice)
 	return 0;
 }
 
-// TODO: implement these
-
 static long dice_hwdep_read(struct snd_hwdep *hwdep, char __user *buf,
 			    long count, loff_t *offset)
 {
-	return -EIO;
+	struct dice *dice = hwdep->private_data;
+	DEFINE_WAIT(wait);
+	union snd_firewire_event event;
+
+	spin_lock_irq(&dice->lock);
+
+	while (!dice->dev_lock_changed && dice->notification_bits == 0) {
+		prepare_to_wait(&dice->hwdep_wait, &wait, TASK_INTERRUPTIBLE);
+		spin_unlock_irq(&dice->lock);
+		schedule();
+		finish_wait(&dice->hwdep_wait, &wait);
+		if (signal_pending(current))
+			return -ERESTARTSYS;
+		spin_lock_irq(&dice->lock);
+	}
+
+	memset(&event, 0, sizeof(event));
+	if (dice->dev_lock_changed) {
+		event.lock_status.type = SNDRV_FIREWIRE_EVENT_LOCK_STATUS;
+		event.lock_status.status = dice->dev_lock_count > 0;
+		dice->dev_lock_changed = false;
+
+		count = min(count, (long)sizeof(event.lock_status));
+	} else {
+		event.dice_notification.type = SNDRV_FIREWIRE_EVENT_DICE_NOTIFICATION;
+		event.dice_notification.notification = dice->notification_bits;
+		dice->notification_bits = 0;
+
+		count = min(count, (long)sizeof(event.dice_notification));
+	}
+
+	spin_unlock_irq(&dice->lock);
+
+	if (copy_to_user(buf, &event, count))
+		return -EFAULT;
+
+	return count;
 }
 
-static int dice_hwdep_open(struct snd_hwdep *hwdep, struct file *file)
+static unsigned int dice_hwdep_poll(struct snd_hwdep *hwdep, struct file *file,
+				    poll_table *wait)
 {
-	return -EIO;
+	struct dice *dice = hwdep->private_data;
+	unsigned int events;
+
+	poll_wait(file, &dice->hwdep_wait, wait);
+
+	spin_lock_irq(&dice->lock);
+	if (dice->dev_lock_changed || dice->notification_bits != 0)
+		events = POLLIN | POLLRDNORM;
+	else
+		events = 0;
+	spin_unlock_irq(&dice->lock);
+
+	return events;
 }
 
-static int dice_hwdep_release(struct snd_hwdep *hwdep, struct file *file)
+static int dice_hwdep_get_info(struct dice *dice, void __user *arg)
 {
+	struct fw_device *dev = fw_parent_device(dice->unit);
+	struct snd_firewire_get_info info;
+
+	memset(&info, 0, sizeof(info));
+	info.type = SNDRV_FIREWIRE_TYPE_DICE;
+	info.card = dev->card->index;
+	*(__be32 *)&info.guid[0] = cpu_to_be32(dev->config_rom[3]);
+	*(__be32 *)&info.guid[4] = cpu_to_be32(dev->config_rom[4]);
+	strlcpy(info.device_name, dev_name(&dev->device),
+		sizeof(info.device_name));
+
+	if (copy_to_user(arg, &info, sizeof(info)))
+		return -EFAULT;
+
 	return 0;
 }
 
-static unsigned int dice_hwdep_poll(struct snd_hwdep *hwdep, struct file *file,
-				    poll_table *wait)
+static int dice_hwdep_lock(struct dice *dice)
+{
+	int err;
+
+	spin_lock_irq(&dice->lock);
+
+	if (dice->dev_lock_count == 0) {
+		dice->dev_lock_count = -1;
+		err = 0;
+	} else {
+		err = -EBUSY;
+	}
+
+	spin_unlock_irq(&dice->lock);
+
+	return err;
+}
+
+static int dice_hwdep_unlock(struct dice *dice)
 {
-	return POLLERR | POLLHUP;
+	int err;
+
+	spin_lock_irq(&dice->lock);
+
+	if (dice->dev_lock_count == -1) {
+		dice->dev_lock_count = 0;
+		err = 0;
+	} else {
+		err = -EBADFD;
+	}
+
+	spin_unlock_irq(&dice->lock);
+
+	return err;
 }
 
 static int dice_hwdep_ioctl(struct snd_hwdep *hwdep, struct file *file,
 			    unsigned int cmd, unsigned long arg)
 {
-	return -EIO;
+	struct dice *dice = hwdep->private_data;
+
+	switch (cmd) {
+	case SNDRV_FIREWIRE_IOCTL_GET_INFO:
+		return dice_hwdep_get_info(dice, (void __user *)arg);
+	case SNDRV_FIREWIRE_IOCTL_LOCK:
+		return dice_hwdep_lock(dice);
+	case SNDRV_FIREWIRE_IOCTL_UNLOCK:
+		return dice_hwdep_unlock(dice);
+	default:
+		return -ENOIOCTLCMD;
+	}
+}
+
+#ifdef CONFIG_COMPAT
+static int dice_hwdep_compat_ioctl(struct snd_hwdep *hwdep, struct file *file,
+				   unsigned int cmd, unsigned long arg)
+{
+	return dice_hwdep_ioctl(hwdep, file, cmd,
+				(unsigned long)compat_ptr(arg));
 }
+#else
+#define dice_hwdep_compat_ioctl NULL
+#endif
 
 static int dice_create_hwdep(struct dice *dice)
 {
 	static const struct snd_hwdep_ops ops = {
 		.read         = dice_hwdep_read,
-		.open         = dice_hwdep_open,
-		.release      = dice_hwdep_release,
 		.poll         = dice_hwdep_poll,
 		.ioctl        = dice_hwdep_ioctl,
-		.ioctl_compat = dice_hwdep_ioctl,
+		.ioctl_compat = dice_hwdep_compat_ioctl,
 	};
 	struct snd_hwdep *hwdep;
 	int err;
@@ -922,8 +1101,10 @@ static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id)
 
 	dice = card->private_data;
 	dice->card = card;
+	spin_lock_init(&dice->lock);
 	mutex_init(&dice->mutex);
 	dice->unit = unit;
+	init_waitqueue_head(&dice->hwdep_wait);
 
 	err = dice_init_offsets(dice);
 	if (err < 0)
-- 
cgit 


From 9dd81e3143b57d1bf7e8377ab29b86090baa55a8 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 4 Sep 2011 22:14:54 +0200
Subject: ALSA: dice: clear device lock when closing hwdep device

Ensure that misbehaving or aborted userspace programs do not
accidentally keep the lock.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 7225878a09cc..ef04089bde7f 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -966,6 +966,18 @@ static int dice_hwdep_unlock(struct dice *dice)
 	return err;
 }
 
+static int dice_hwdep_release(struct snd_hwdep *hwdep, struct file *file)
+{
+	struct dice *dice = hwdep->private_data;
+
+	spin_lock_irq(&dice->lock);
+	if (dice->dev_lock_count == -1)
+		dice->dev_lock_count = 0;
+	spin_unlock_irq(&dice->lock);
+
+	return 0;
+}
+
 static int dice_hwdep_ioctl(struct snd_hwdep *hwdep, struct file *file,
 			    unsigned int cmd, unsigned long arg)
 {
@@ -998,6 +1010,7 @@ static int dice_create_hwdep(struct dice *dice)
 {
 	static const struct snd_hwdep_ops ops = {
 		.read         = dice_hwdep_read,
+		.release      = dice_hwdep_release,
 		.poll         = dice_hwdep_poll,
 		.ioctl        = dice_hwdep_ioctl,
 		.ioctl_compat = dice_hwdep_compat_ioctl,
-- 
cgit 


From 20b65dd040ce38e2bc0fa3cae13b954c865b61fe Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 4 Sep 2011 22:15:44 +0200
Subject: ALSA: firewire: introduce amdtp_out_stream_running()

Introduce the helper function amdtp_out_stream_running().  This makes
many checks in amdtp.c clearer and frees the device drivers from having
to track this with a separate variable.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/amdtp.c    | 10 +++++-----
 sound/firewire/amdtp.h    |  6 ++++++
 sound/firewire/dice.c     | 17 +++++------------
 sound/firewire/speakers.c |  8 ++------
 4 files changed, 18 insertions(+), 23 deletions(-)

diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index efb2e2947ce7..d56b8e736b7d 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -59,7 +59,7 @@ EXPORT_SYMBOL(amdtp_out_stream_init);
  */
 void amdtp_out_stream_destroy(struct amdtp_out_stream *s)
 {
-	WARN_ON(!IS_ERR(s->context));
+	WARN_ON(amdtp_out_stream_running(s));
 	mutex_destroy(&s->mutex);
 	fw_unit_put(s->unit);
 }
@@ -89,7 +89,7 @@ void amdtp_out_stream_set_rate(struct amdtp_out_stream *s, unsigned int rate)
 	};
 	unsigned int sfc;
 
-	if (WARN_ON(!IS_ERR(s->context)))
+	if (WARN_ON(amdtp_out_stream_running(s)))
 		return;
 
 	for (sfc = 0; sfc < ARRAY_SIZE(rate_info); ++sfc)
@@ -145,7 +145,7 @@ static void amdtp_write_s32(struct amdtp_out_stream *s,
 void amdtp_out_stream_set_pcm_format(struct amdtp_out_stream *s,
 				     snd_pcm_format_t format)
 {
-	if (WARN_ON(!IS_ERR(s->context)))
+	if (WARN_ON(amdtp_out_stream_running(s)))
 		return;
 
 	switch (format) {
@@ -481,7 +481,7 @@ int amdtp_out_stream_start(struct amdtp_out_stream *s, int channel, int speed)
 
 	mutex_lock(&s->mutex);
 
-	if (WARN_ON(!IS_ERR(s->context) ||
+	if (WARN_ON(amdtp_out_stream_running(s) ||
 		    (!s->pcm_channels && !s->midi_ports))) {
 		err = -EBADFD;
 		goto err_unlock;
@@ -577,7 +577,7 @@ void amdtp_out_stream_stop(struct amdtp_out_stream *s)
 {
 	mutex_lock(&s->mutex);
 
-	if (IS_ERR(s->context)) {
+	if (!amdtp_out_stream_running(s)) {
 		mutex_unlock(&s->mutex);
 		return;
 	}
diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
index fd4ce3030279..28b1bf5891e6 100644
--- a/sound/firewire/amdtp.h
+++ b/sound/firewire/amdtp.h
@@ -1,6 +1,7 @@
 #ifndef SOUND_FIREWIRE_AMDTP_H_INCLUDED
 #define SOUND_FIREWIRE_AMDTP_H_INCLUDED
 
+#include <linux/err.h>
 #include <linux/interrupt.h>
 #include <linux/mutex.h>
 #include "packets-buffer.h"
@@ -92,6 +93,11 @@ void amdtp_out_stream_pcm_prepare(struct amdtp_out_stream *s);
 unsigned long amdtp_out_stream_pcm_pointer(struct amdtp_out_stream *s);
 void amdtp_out_stream_pcm_abort(struct amdtp_out_stream *s);
 
+static inline bool amdtp_out_stream_running(struct amdtp_out_stream *s)
+{
+	return !IS_ERR(s->context);
+}
+
 /**
  * amdtp_out_stream_set_pcm - configure format of PCM samples
  * @s: the AMDTP output stream to be configured
diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index ef04089bde7f..3591aebd1bb7 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -246,7 +246,6 @@ struct dice {
 	int dev_lock_count; /* > 0 driver, < 0 userspace */
 	bool dev_lock_changed;
 	bool global_enabled;
-	bool stream_running;
 	wait_queue_head_t hwdep_wait;
 	u32 notification_bits;
 	struct snd_pcm_substream *pcm;
@@ -654,7 +653,7 @@ static int dice_stream_start_packets(struct dice *dice)
 {
 	int err;
 
-	if (dice->stream_running)
+	if (amdtp_out_stream_running(&dice->stream))
 		return 0;
 
 	err = amdtp_out_stream_start(&dice->stream, dice->resources.channel,
@@ -668,8 +667,6 @@ static int dice_stream_start_packets(struct dice *dice)
 		return err;
 	}
 
-	dice->stream_running = true;
-
 	return 0;
 }
 
@@ -712,14 +709,10 @@ error:
 
 static void dice_stream_stop_packets(struct dice *dice)
 {
-	if (!dice->stream_running)
-		return;
-
-	dice_enable_clear(dice);
-
-	amdtp_out_stream_stop(&dice->stream);
-
-	dice->stream_running = false;
+	if (amdtp_out_stream_running(&dice->stream)) {
+		dice_enable_clear(dice);
+		amdtp_out_stream_stop(&dice->stream);
+	}
 }
 
 static void dice_stream_stop(struct dice *dice)
diff --git a/sound/firewire/speakers.c b/sound/firewire/speakers.c
index 2c6386503940..0ac56304baff 100644
--- a/sound/firewire/speakers.c
+++ b/sound/firewire/speakers.c
@@ -53,7 +53,6 @@ struct fwspk {
 	struct mutex mutex;
 	struct cmp_connection connection;
 	struct amdtp_out_stream stream;
-	bool stream_running;
 	bool mute;
 	s16 volume[6];
 	s16 volume_min;
@@ -189,10 +188,9 @@ static int fwspk_close(struct snd_pcm_substream *substream)
 
 static void fwspk_stop_stream(struct fwspk *fwspk)
 {
-	if (fwspk->stream_running) {
+	if (amdtp_out_stream_running(&fwspk->stream)) {
 		amdtp_out_stream_stop(&fwspk->stream);
 		cmp_connection_break(&fwspk->connection);
-		fwspk->stream_running = false;
 	}
 }
 
@@ -286,7 +284,7 @@ static int fwspk_prepare(struct snd_pcm_substream *substream)
 	if (amdtp_out_streaming_error(&fwspk->stream))
 		fwspk_stop_stream(fwspk);
 
-	if (!fwspk->stream_running) {
+	if (!amdtp_out_stream_running(&fwspk->stream)) {
 		err = cmp_connection_establish(&fwspk->connection,
 			amdtp_out_stream_get_max_payload(&fwspk->stream));
 		if (err < 0)
@@ -297,8 +295,6 @@ static int fwspk_prepare(struct snd_pcm_substream *substream)
 					fwspk->connection.speed);
 		if (err < 0)
 			goto err_connection;
-
-		fwspk->stream_running = true;
 	}
 
 	mutex_unlock(&fwspk->mutex);
-- 
cgit 


From 54e72f0ba31e1562e6d6277d0e4d39a7004f814d Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 4 Sep 2011 22:15:54 +0200
Subject: ALSA: dice: reorganize interface definitions

Move the DICE interface symbols into a separate header file, and add
more documentation.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice-interface.h | 371 ++++++++++++++++++++++++++++++++++++++++
 sound/firewire/dice.c           | 209 +---------------------
 2 files changed, 373 insertions(+), 207 deletions(-)
 create mode 100644 sound/firewire/dice-interface.h

diff --git a/sound/firewire/dice-interface.h b/sound/firewire/dice-interface.h
new file mode 100644
index 000000000000..af916b9d07a4
--- /dev/null
+++ b/sound/firewire/dice-interface.h
@@ -0,0 +1,371 @@
+#ifndef SOUND_FIREWIRE_DICE_INTERFACE_H_INCLUDED
+#define SOUND_FIREWIRE_DICE_INTERFACE_H_INCLUDED
+
+/*
+ * DICE device interface definitions
+ */
+
+/*
+ * Generally, all registers can be read like memory, i.e., with quadlet read or
+ * block read transactions with any alignment or length.  Writes are not
+ * allowed except where noted; quadlet-sized registers must be written with
+ * a quadlet write transaction.
+ *
+ * All values are in big endian.  The DICE firmware runs on a little-endian CPU
+ * and just byte-swaps _all_ quadlets on the bus, so values without endianness
+ * (e.g. strings) get scrambled and must be byte-swapped again by the driver.
+ */
+
+/*
+ * Streaming is handled by the "DICE driver" interface.  Its registers are
+ * located in this private address space.
+ */
+#define DICE_PRIVATE_SPACE		0xffffe0000000uLL
+
+/*
+ * The registers are organized in several sections, which are organized
+ * separately to allow them to be extended individually.  Whether a register is
+ * supported can be detected by checking its offset against its section's size.
+ *
+ * The section offset values are relative to DICE_PRIVATE_SPACE; the offset/
+ * size values are measured in quadlets.  Read-only.
+ */
+#define DICE_GLOBAL_OFFSET		0x00
+#define DICE_GLOBAL_SIZE		0x04
+#define DICE_TX_OFFSET			0x08
+#define DICE_TX_SIZE			0x0c
+#define DICE_RX_OFFSET			0x10
+#define DICE_RX_SIZE			0x14
+#define DICE_EXT_SYNC_OFFSET		0x18
+#define DICE_EXT_SYNC_SIZE		0x1c
+#define DICE_UNUSED2_OFFSET		0x20
+#define DICE_UNUSED2_SIZE		0x24
+
+/*
+ * Global settings.
+ */
+
+/*
+ * Stores the full 64-bit address (node ID and offset in the node's address
+ * space) where the device will send notifications.  Must be changed with
+ * a compare/swap transaction by the owner.  This register is automatically
+ * cleared on a bus reset.
+ */
+#define GLOBAL_OWNER			0x000
+#define  OWNER_NO_OWNER			0xffff000000000000uLL
+#define  OWNER_NODE_SHIFT		48
+
+/*
+ * A bitmask with asynchronous events; read-only.  When any event(s) happen,
+ * the bits of previous events are cleared, and the value of this register is
+ * also written to the address stored in the owner register.
+ */
+#define GLOBAL_NOTIFICATION		0x008
+/* Some registers in the Rx/Tx sections may have changed. */
+#define  NOTIFY_RX_CFG_CHG		0x00000001
+#define  NOTIFY_TX_CFG_CHG		0x00000002
+/* Lock status of the current clock source may have changed. */
+#define  NOTIFY_LOCK_CHG		0x00000010
+/* Write to the clock select register has been finished. */
+#define  NOTIFY_CLOCK_ACCEPTED		0x00000020
+/* Lock status of some clock source has changed. */
+#define  NOTIFY_EXT_STATUS		0x00000040
+/* Other bits may be used for device-specific events. */
+
+/*
+ * A name that can be customized for each device; read/write.  Padded with zero
+ * bytes.  Quadlets are byte-swapped.  The encoding is whatever the host driver
+ * happens to be using.
+ */
+#define GLOBAL_NICK_NAME		0x00c
+#define  NICK_NAME_SIZE			64
+
+/*
+ * The current sample rate and clock source; read/write.  Whether a clock
+ * source or sample rate is supported is device-specific; the internal clock
+ * source is always available.  Low/mid/high = up to 48/96/192 kHz.  This
+ * register can be changed even while streams are running.
+ */
+#define GLOBAL_CLOCK_SELECT		0x04c
+#define  CLOCK_SOURCE_MASK		0x000000ff
+#define  CLOCK_SOURCE_AES1		0x00000000
+#define  CLOCK_SOURCE_AES2		0x00000001
+#define  CLOCK_SOURCE_AES3		0x00000002
+#define  CLOCK_SOURCE_AES4		0x00000003
+#define  CLOCK_SOURCE_AES_ANY		0x00000004
+#define  CLOCK_SOURCE_ADAT		0x00000005
+#define  CLOCK_SOURCE_TDIF		0x00000006
+#define  CLOCK_SOURCE_WC		0x00000007
+#define  CLOCK_SOURCE_ARX1		0x00000008
+#define  CLOCK_SOURCE_ARX2		0x00000009
+#define  CLOCK_SOURCE_ARX3		0x0000000a
+#define  CLOCK_SOURCE_ARX4		0x0000000b
+#define  CLOCK_SOURCE_INTERNAL		0x0000000c
+#define  CLOCK_RATE_MASK		0x0000ff00
+#define  CLOCK_RATE_32000		0x00000000
+#define  CLOCK_RATE_44100		0x00000100
+#define  CLOCK_RATE_48000		0x00000200
+#define  CLOCK_RATE_88200		0x00000300
+#define  CLOCK_RATE_96000		0x00000400
+#define  CLOCK_RATE_176400		0x00000500
+#define  CLOCK_RATE_192000		0x00000600
+#define  CLOCK_RATE_ANY_LOW		0x00000700
+#define  CLOCK_RATE_ANY_MID		0x00000800
+#define  CLOCK_RATE_ANY_HIGH		0x00000900
+#define  CLOCK_RATE_NONE		0x00000a00
+#define  CLOCK_RATE_SHIFT		8
+
+/*
+ * Enable streaming; read/write.  Writing a non-zero value (re)starts all
+ * streams that have a valid iso channel set; zero stops all streams.  The
+ * streams' parameters must be configured before starting.  This register is
+ * automatically cleared on a bus reset.
+ */
+#define GLOBAL_ENABLE			0x050
+
+/*
+ * Status of the sample clock; read-only.
+ */
+#define GLOBAL_STATUS			0x054
+/* The current clock source is locked. */
+#define  STATUS_SOURCE_LOCKED		0x00000001
+/* The actual sample rate; CLOCK_RATE_32000-_192000 or _NONE. */
+#define  STATUS_NOMINAL_RATE_MASK	0x0000ff00
+
+/*
+ * Status of all clock sources; read-only.
+ */
+#define GLOBAL_EXTENDED_STATUS		0x058
+/*
+ * The _LOCKED bits always show the current status; any change generates
+ * a notification.
+ */
+#define  EXT_STATUS_AES1_LOCKED		0x00000001
+#define  EXT_STATUS_AES2_LOCKED		0x00000002
+#define  EXT_STATUS_AES3_LOCKED		0x00000004
+#define  EXT_STATUS_AES4_LOCKED		0x00000008
+#define  EXT_STATUS_ADAT_LOCKED		0x00000010
+#define  EXT_STATUS_TDIF_LOCKED		0x00000020
+#define  EXT_STATUS_ARX1_LOCKED		0x00000040
+#define  EXT_STATUS_ARX2_LOCKED		0x00000080
+#define  EXT_STATUS_ARX3_LOCKED		0x00000100
+#define  EXT_STATUS_ARX4_LOCKED		0x00000200
+#define  EXT_STATUS_WC_LOCKED		0x00000400
+/*
+ * The _SLIP bits do not generate notifications; a set bit indicates that an
+ * error occurred since the last time when this register was read with
+ * a quadlet read transaction.
+ */
+#define  EXT_STATUS_AES1_SLIP		0x00010000
+#define  EXT_STATUS_AES2_SLIP		0x00020000
+#define  EXT_STATUS_AES3_SLIP		0x00040000
+#define  EXT_STATUS_AES4_SLIP		0x00080000
+#define  EXT_STATUS_ADAT_SLIP		0x00100000
+#define  EXT_STATUS_TDIF_SLIP		0x00200000
+#define  EXT_STATUS_ARX1_SLIP		0x00400000
+#define  EXT_STATUS_ARX2_SLIP		0x00800000
+#define  EXT_STATUS_ARX3_SLIP		0x01000000
+#define  EXT_STATUS_ARX4_SLIP		0x02000000
+#define  EXT_STATUS_WC_SLIP		0x04000000
+
+/*
+ * The measured rate of the current clock source, in Hz; read-only.
+ */
+#define GLOBAL_SAMPLE_RATE		0x05c
+
+/*
+ * The version of the DICE driver specification that this device conforms to;
+ * read-only.
+ */
+#define GLOBAL_VERSION			0x060
+
+/* Some old firmware versions do not have the following global registers: */
+
+/*
+ * Supported sample rates and clock sources; read-only.
+ */
+#define GLOBAL_CLOCK_CAPABILITIES	0x064
+#define  CLOCK_CAP_RATE_32000		0x00000001
+#define  CLOCK_CAP_RATE_44100		0x00000002
+#define  CLOCK_CAP_RATE_48000		0x00000004
+#define  CLOCK_CAP_RATE_88200		0x00000008
+#define  CLOCK_CAP_RATE_96000		0x00000010
+#define  CLOCK_CAP_RATE_176400		0x00000020
+#define  CLOCK_CAP_RATE_192000		0x00000040
+#define  CLOCK_CAP_SOURCE_AES1		0x00010000
+#define  CLOCK_CAP_SOURCE_AES2		0x00020000
+#define  CLOCK_CAP_SOURCE_AES3		0x00040000
+#define  CLOCK_CAP_SOURCE_AES4		0x00080000
+#define  CLOCK_CAP_SOURCE_AES_ANY	0x00100000
+#define  CLOCK_CAP_SOURCE_ADAT		0x00200000
+#define  CLOCK_CAP_SOURCE_TDIF		0x00400000
+#define  CLOCK_CAP_SOURCE_WC		0x00800000
+#define  CLOCK_CAP_SOURCE_ARX1		0x01000000
+#define  CLOCK_CAP_SOURCE_ARX2		0x02000000
+#define  CLOCK_CAP_SOURCE_ARX3		0x04000000
+#define  CLOCK_CAP_SOURCE_ARX4		0x08000000
+#define  CLOCK_CAP_SOURCE_INTERNAL	0x10000000
+
+/*
+ * Names of all clock sources; read-only.  Quadlets are byte-swapped.  Names
+ * are separated with one backslash, the list is terminated with two
+ * backslashes.  Unused clock sources are included.
+ */
+#define GLOBAL_CLOCK_SOURCE_NAMES	0x068
+#define  CLOCK_SOURCE_NAMES_SIZE	256
+
+/*
+ * Capture stream settings.  This section includes the number/size registers
+ * and the registers of all streams.
+ */
+
+/*
+ * The number of supported capture streams; read-only.
+ */
+#define TX_NUMBER			0x000
+
+/*
+ * The size of one stream's register block, in quadlets; read-only.  The
+ * registers of the first stream follow immediately afterwards; the registers
+ * of the following streams are offset by this register's value.
+ */
+#define TX_SIZE				0x004
+
+/*
+ * The isochronous channel number on which packets are sent, or -1 if the
+ * stream is not to be used; read/write.
+ */
+#define TX_ISOCHRONOUS			0x008
+
+/*
+ * The number of audio channels; read-only.  There will be one quadlet per
+ * channel; the first channel is the first quadlet in a data block.
+ */
+#define TX_NUMBER_AUDIO			0x00c
+
+/*
+ * The number of MIDI ports, 0-8; read-only.  If > 0, there will be one
+ * additional quadlet in each data block, following the audio quadlets.
+ */
+#define TX_NUMBER_MIDI			0x010
+
+/*
+ * The speed at which the packets are sent, SCODE_100-_400; read/write.
+ */
+#define TX_SPEED			0x014
+
+/*
+ * Names of all audio channels; read-only.  Quadlets are byte-swapped.  Names
+ * are separated with one backslash, the list is terminated with two
+ * backslashes.
+ */
+#define TX_NAMES			0x018
+#define  TX_NAMES_SIZE			256
+
+/*
+ * Audio IEC60958 capabilities; read-only.  Bitmask with one bit per audio
+ * channel.
+ */
+#define TX_AC3_CAPABILITIES		0x118
+
+/*
+ * Send audio data with IEC60958 label; read/write.  Bitmask with one bit per
+ * audio channel.  This register can be changed even while the stream is
+ * running.
+ */
+#define TX_AC3_ENABLE			0x11c
+
+/*
+ * Playback stream settings.  This section includes the number/size registers
+ * and the registers of all streams.
+ */
+
+/*
+ * The number of supported playback streams; read-only.
+ */
+#define RX_NUMBER			0x000
+
+/*
+ * The size of one stream's register block, in quadlets; read-only.  The
+ * registers of the first stream follow immediately afterwards; the registers
+ * of the following streams are offset by this register's value.
+ */
+#define RX_SIZE				0x004
+
+/*
+ * The isochronous channel number on which packets are received, or -1 if the
+ * stream is not to be used; read/write.
+ */
+#define RX_ISOCHRONOUS			0x008
+
+/*
+ * Index of first quadlet to be interpreted; read/write.  If > 0, that many
+ * quadlets at the beginning of each data block will be ignored, and all the
+ * audio and MIDI quadlets will follow.
+ */
+#define RX_SEQ_START			0x00c
+
+/*
+ * The number of audio channels; read-only.  There will be one quadlet per
+ * channel.
+ */
+#define RX_NUMBER_AUDIO			0x010
+
+/*
+ * The number of MIDI ports, 0-8; read-only.  If > 0, there will be one
+ * additional quadlet in each data block, following the audio quadlets.
+ */
+#define RX_NUMBER_MIDI			0x014
+
+/*
+ * Names of all audio channels; read-only.  Quadlets are byte-swapped.  Names
+ * are separated with one backslash, the list is terminated with two
+ * backslashes.
+ */
+#define RX_NAMES			0x018
+#define  RX_NAMES_SIZE			256
+
+/*
+ * Audio IEC60958 capabilities; read-only.  Bitmask with one bit per audio
+ * channel.
+ */
+#define RX_AC3_CAPABILITIES		0x118
+
+/*
+ * Receive audio data with IEC60958 label; read/write.  Bitmask with one bit
+ * per audio channel.  This register can be changed even while the stream is
+ * running.
+ */
+#define RX_AC3_ENABLE			0x11c
+
+/*
+ * Extended synchronization information.
+ * This section can be read completely with a block read request.
+ */
+
+/*
+ * Current clock source; read-only.
+ */
+#define EXT_SYNC_CLOCK_SOURCE		0x000
+
+/*
+ * Clock source is locked (boolean); read-only.
+ */
+#define EXT_SYNC_LOCKED			0x004
+
+/*
+ * Current sample rate (CLOCK_RATE_* >> CLOCK_RATE_SHIFT), _32000-_192000 or
+ * _NONE; read-only.
+ */
+#define EXT_SYNC_RATE			0x008
+
+/*
+ * ADAT user data bits; read-only.
+ */
+#define EXT_SYNC_ADAT_USER_DATA		0x00c
+/* The data bits, if available. */
+#define  ADAT_USER_DATA_MASK		0x0f
+/* The data bits are not available. */
+#define  ADAT_USER_DATA_NO_DATA		0x10
+
+#endif
diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 3591aebd1bb7..1da1ddefd6a8 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -26,212 +26,7 @@
 #include "amdtp.h"
 #include "iso-resources.h"
 #include "lib.h"
-
-#define DICE_PRIVATE_SPACE		0xffffe0000000uLL
-
-/* offset from DICE_PRIVATE_SPACE; offsets and sizes in quadlets */
-#define DICE_GLOBAL_OFFSET		0x00
-#define DICE_GLOBAL_SIZE		0x04
-#define DICE_TX_OFFSET			0x08
-#define DICE_TX_SIZE			0x0c
-#define DICE_RX_OFFSET			0x10
-#define DICE_RX_SIZE			0x14
-
-/* pointed to by DICE_GLOBAL_OFFSET */
-#define GLOBAL_OWNER			0x000
-#define  OWNER_NO_OWNER			0xffff000000000000uLL
-#define  OWNER_NODE_SHIFT		48
-#define GLOBAL_NOTIFICATION		0x008
-#define  NOTIFY_RX_CFG_CHG		0x00000001
-#define  NOTIFY_TX_CFG_CHG		0x00000002
-#define  NOTIFY_DUP_ISOC		0x00000004
-#define  NOTIFY_BW_ERR			0x00000008
-#define  NOTIFY_LOCK_CHG		0x00000010
-#define  NOTIFY_CLOCK_ACCEPTED		0x00000020
-#define  NOTIFY_INTERFACE_CHG		0x00000040
-#define  NOTIFY_MESSAGE			0x00100000
-#define GLOBAL_NICK_NAME		0x00c
-#define  NICK_NAME_SIZE			64
-#define GLOBAL_CLOCK_SELECT		0x04c
-#define  CLOCK_SOURCE_MASK		0x000000ff
-#define  CLOCK_SOURCE_AES1		0x00000000
-#define  CLOCK_SOURCE_AES2		0x00000001
-#define  CLOCK_SOURCE_AES3		0x00000002
-#define  CLOCK_SOURCE_AES4		0x00000003
-#define  CLOCK_SOURCE_AES_ANY		0x00000004
-#define  CLOCK_SOURCE_ADAT		0x00000005
-#define  CLOCK_SOURCE_TDIF		0x00000006
-#define  CLOCK_SOURCE_WC		0x00000007
-#define  CLOCK_SOURCE_ARX1		0x00000008
-#define  CLOCK_SOURCE_ARX2		0x00000009
-#define  CLOCK_SOURCE_ARX3		0x0000000a
-#define  CLOCK_SOURCE_ARX4		0x0000000b
-#define  CLOCK_SOURCE_INTERNAL		0x0000000c
-#define  CLOCK_RATE_MASK		0x0000ff00
-#define  CLOCK_RATE_32000		0x00000000
-#define  CLOCK_RATE_44100		0x00000100
-#define  CLOCK_RATE_48000		0x00000200
-#define  CLOCK_RATE_88200		0x00000300
-#define  CLOCK_RATE_96000		0x00000400
-#define  CLOCK_RATE_176400		0x00000500
-#define  CLOCK_RATE_192000		0x00000600
-#define  CLOCK_RATE_ANY_LOW		0x00000700
-#define  CLOCK_RATE_ANY_MID		0x00000800
-#define  CLOCK_RATE_ANY_HIGH		0x00000900
-#define  CLOCK_RATE_NONE		0x00000a00
-#define  CLOCK_RATE_SHIFT		8
-#define GLOBAL_ENABLE			0x050
-#define  ENABLE				0x00000001
-#define GLOBAL_STATUS			0x054
-#define  STATUS_SOURCE_LOCKED		0x00000001
-#define  STATUS_RATE_CONFLICT		0x00000002
-#define  STATUS_NOMINAL_RATE_MASK	0x0000ff00
-#define GLOBAL_EXTENDED_STATUS		0x058
-#define  EXT_STATUS_AES1_LOCKED		0x00000001
-#define  EXT_STATUS_AES2_LOCKED		0x00000002
-#define  EXT_STATUS_AES3_LOCKED		0x00000004
-#define  EXT_STATUS_AES4_LOCKED		0x00000008
-#define  EXT_STATUS_ADAT_LOCKED		0x00000010
-#define  EXT_STATUS_TDIF_LOCKED		0x00000020
-#define  EXT_STATUS_ARX1_LOCKED		0x00000040
-#define  EXT_STATUS_ARX2_LOCKED		0x00000080
-#define  EXT_STATUS_ARX3_LOCKED		0x00000100
-#define  EXT_STATUS_ARX4_LOCKED		0x00000200
-#define  EXT_STATUS_WC_LOCKED		0x00000400
-#define  EXT_STATUS_AES1_SLIP		0x00010000
-#define  EXT_STATUS_AES2_SLIP		0x00020000
-#define  EXT_STATUS_AES3_SLIP		0x00040000
-#define  EXT_STATUS_AES4_SLIP		0x00080000
-#define  EXT_STATUS_ADAT_SLIP		0x00100000
-#define  EXT_STATUS_TDIF_SLIP		0x00200000
-#define  EXT_STATUS_ARX1_SLIP		0x00400000
-#define  EXT_STATUS_ARX2_SLIP		0x00800000
-#define  EXT_STATUS_ARX3_SLIP		0x01000000
-#define  EXT_STATUS_ARX4_SLIP		0x02000000
-#define  EXT_STATUS_WC_SLIP		0x04000000
-#define GLOBAL_SAMPLE_RATE		0x05c
-#define GLOBAL_VERSION			0x060
-#define GLOBAL_CLOCK_CAPABILITIES	0x064
-#define  CLOCK_CAP_RATE_32000		0x00000001
-#define  CLOCK_CAP_RATE_44100		0x00000002
-#define  CLOCK_CAP_RATE_48000		0x00000004
-#define  CLOCK_CAP_RATE_88200		0x00000008
-#define  CLOCK_CAP_RATE_96000		0x00000010
-#define  CLOCK_CAP_RATE_176400		0x00000020
-#define  CLOCK_CAP_RATE_192000		0x00000040
-#define  CLOCK_CAP_SOURCE_AES1		0x00010000
-#define  CLOCK_CAP_SOURCE_AES2		0x00020000
-#define  CLOCK_CAP_SOURCE_AES3		0x00040000
-#define  CLOCK_CAP_SOURCE_AES4		0x00080000
-#define  CLOCK_CAP_SOURCE_AES_ANY	0x00100000
-#define  CLOCK_CAP_SOURCE_ADAT		0x00200000
-#define  CLOCK_CAP_SOURCE_TDIF		0x00400000
-#define  CLOCK_CAP_SOURCE_WC		0x00800000
-#define  CLOCK_CAP_SOURCE_ARX1		0x01000000
-#define  CLOCK_CAP_SOURCE_ARX2		0x02000000
-#define  CLOCK_CAP_SOURCE_ARX3		0x04000000
-#define  CLOCK_CAP_SOURCE_ARX4		0x08000000
-#define  CLOCK_CAP_SOURCE_INTERNAL	0x10000000
-#define GLOBAL_CLOCK_SOURCE_NAMES	0x068
-#define  CLOCK_SOURCE_NAMES_SIZE	256
-
-/* pointed to by DICE_TX_OFFSET */
-#define TX_NUMBER			0x000
-#define TX_SIZE				0x004
-/* repeated TX_NUMBER times, offset by TX_SIZE quadlets */
-#define TX_ISOCHRONOUS			0x008
-#define TX_NUMBER_AUDIO			0x00c
-#define TX_NUMBER_MIDI			0x010
-#define TX_SPEED			0x014
-#define TX_NAMES			0x018
-#define  TX_NAMES_SIZE			256
-#define TX_AC3_CAPABILITIES		0x118
-#define TX_AC3_ENABLE			0x11c
-
-/* pointed to by DICE_RX_OFFSET */
-#define RX_NUMBER			0x000
-#define RX_SIZE				0x004
-/* repeated RX_NUMBER times, offset by RX_SIZE quadlets */
-#define RX_ISOCHRONOUS			0x008
-#define RX_SEQ_START			0x00c
-#define RX_NUMBER_AUDIO			0x010
-#define RX_NUMBER_MIDI			0x014
-#define RX_NAMES			0x018
-#define  RX_NAMES_SIZE			256
-#define RX_AC3_CAPABILITIES		0x118
-#define RX_AC3_ENABLE			0x11c
-
-
-#define FIRMWARE_LOAD_SPACE		0xffffe0100000uLL
-
-/* offset from FIRMWARE_LOAD_SPACE */
-#define FIRMWARE_VERSION		0x000
-#define FIRMWARE_OPCODE			0x004
-#define  OPCODE_MASK			0x00000fff
-#define  OPCODE_GET_IMAGE_DESC		0x00000000
-#define  OPCODE_DELETE_IMAGE		0x00000001
-#define  OPCODE_CREATE_IMAGE		0x00000002
-#define  OPCODE_UPLOAD			0x00000003
-#define  OPCODE_UPLOAD_STAT		0x00000004
-#define  OPCODE_RESET_IMAGE		0x00000005
-#define  OPCODE_TEST_ACTION		0x00000006
-#define  OPCODE_GET_RUNNING_IMAGE_VINFO	0x0000000a
-#define  OPCODE_EXECUTE			0x80000000
-#define FIRMWARE_RETURN_STATUS		0x008
-#define FIRMWARE_PROGRESS		0x00c
-#define  PROGRESS_CURR_MASK		0x00000fff
-#define  PROGRESS_MAX_MASK		0x00fff000
-#define  PROGRESS_TOUT_MASK		0x0f000000
-#define  PROGRESS_FLAG			0x80000000
-#define FIRMWARE_CAPABILITIES		0x010
-#define  FL_CAP_AUTOERASE		0x00000001
-#define  FL_CAP_PROGRESS		0x00000002
-#define FIRMWARE_DATA			0x02c
-#define  TEST_CMD_POKE			0x00000001
-#define  TEST_CMD_PEEK			0x00000002
-#define  CMD_GET_AVS_CNT		0x00000003
-#define  CMD_CLR_AVS_CNT		0x00000004
-#define  CMD_SET_MODE			0x00000005
-#define  CMD_SET_MIDIBP			0x00000006
-#define  CMD_GET_AVSPHASE		0x00000007
-#define  CMD_ENABLE_BNC_SYNC		0x00000008
-#define  CMD_PULSE_BNC_SYNC		0x00000009
-#define  CMD_EMUL_SLOW_CMD		0x0000000a
-#define FIRMWARE_TEST_DELAY		0xfd8
-#define FIRMWARE_TEST_BUF		0xfdc
-
-
-/* EAP */
-#define EAP_PRIVATE_SPACE		0xffffe0200000uLL
-
-#define EAP_CAPABILITY_OFFSET		0x000
-#define EAP_CAPABILITY_SIZE		0x004
-/* ... */
-
-#define EAP_ROUTER_CAPS			0x000
-#define  ROUTER_EXPOSED			0x00000001
-#define  ROUTER_READ_ONLY		0x00000002
-#define  ROUTER_FLASH			0x00000004
-#define  MAX_ROUTES_MASK		0xffff0000
-#define EAP_MIXER_CAPS			0x004
-#define  MIXER_EXPOSED			0x00000001
-#define  MIXER_READ_ONLY		0x00000002
-#define  MIXER_FLASH			0x00000004
-#define  MIXER_IN_DEV_MASK		0x000000f0
-#define  MIXER_OUT_DEV_MASK		0x00000f00
-#define  MIXER_INPUTS_MASK		0x00ff0000
-#define  MIXER_OUTPUTS_MASK		0xff000000
-#define EAP_GENERAL_CAPS		0x008
-#define  GENERAL_STREAM_CONFIG		0x00000001
-#define  GENERAL_FLASH			0x00000002
-#define  GENERAL_PEAK			0x00000004
-#define  GENERAL_MAX_TX_STREAMS_MASK	0x000000f0
-#define  GENERAL_MAX_RX_STREAMS_MASK	0x00000f00
-#define  GENERAL_STREAM_CONFIG_FLASH	0x00001000
-#define  GENERAL_CHIP_MASK		0x00ff0000
-#define  GENERAL_CHIP_DICE_II		0x00000000
-#define  GENERAL_CHIP_DICE_MINI		0x00010000
-#define  GENERAL_CHIP_DICE_JR		0x00020000
+#include "dice-interface.h"
 
 
 struct dice {
@@ -479,7 +274,7 @@ static int dice_enable_set(struct dice *dice)
 	__be32 value;
 	int rcode, err, errors = 0;
 
-	value = cpu_to_be32(ENABLE);
+	value = cpu_to_be32(1);
 	for (;;) {
 		rcode = fw_run_transaction(device->card,
 					   TCODE_WRITE_QUADLET_REQUEST,
-- 
cgit 


From cbab328ddc78589233be8be2f1e6a5f9d97b81db Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 4 Sep 2011 22:16:02 +0200
Subject: ALSA: dice: fix device detection for other vendors

DICE devices do not have a unique specifier ID in their unit directory
(it's always the same as the device vendor's ID), so rely on just the
version ID for driver loading, and use a heuristic in the probe callback
to detect actual DICE devices.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice.c | 102 +++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 84 insertions(+), 18 deletions(-)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 1da1ddefd6a8..b4827ff45d68 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -827,28 +827,93 @@ static void dice_card_free(struct snd_card *card)
 	mutex_destroy(&dice->mutex);
 }
 
+#define DICE_CATEGORY_ID 0x04
+
+static int dice_interface_check(struct fw_unit *unit)
+{
+	static const int min_values[10] = {
+		10, 0x64 / 4,
+		10, 0x18 / 4,
+		10, 0x18 / 4,
+		0, 0,
+		0, 0,
+	};
+	struct fw_device *device = fw_parent_device(unit);
+	struct fw_csr_iterator it;
+	int key, value, vendor = -1, model = -1, err;
+	unsigned int i;
+	__be32 pointers[ARRAY_SIZE(min_values)];
+	__be32 version;
+
+	/*
+	 * Check that GUID and unit directory are constructed according to DICE
+	 * rules, i.e., that the specifier ID is the GUID's OUI, and that the
+	 * GUID chip ID consists of the 8-bit DICE category ID, the 10-bit
+	 * product ID, and a 22-bit serial number.
+	 */
+	fw_csr_iterator_init(&it, unit->directory);
+	while (fw_csr_iterator_next(&it, &key, &value)) {
+		switch (key) {
+		case CSR_SPECIFIER_ID:
+			vendor = value;
+			break;
+		case CSR_MODEL:
+			model = value;
+			break;
+		}
+	}
+	if (device->config_rom[3] != ((vendor << 8) | DICE_CATEGORY_ID) ||
+	    device->config_rom[4] >> 22 != model)
+		return -ENODEV;
+
+	/*
+	 * Check that the sub address spaces exist and are located inside the
+	 * private address space.  The minimum values are chosen so that all
+	 * minimally required registers are included.
+	 */
+	err = snd_fw_transaction(unit, TCODE_READ_BLOCK_REQUEST,
+				 DICE_PRIVATE_SPACE,
+				 pointers, sizeof(pointers));
+	if (err < 0)
+		return -ENODEV;
+	for (i = 0; i < ARRAY_SIZE(pointers); ++i) {
+		value = be32_to_cpu(pointers[i]);
+		if (value < min_values[i] || value >= 0x40000)
+			return -ENODEV;
+	}
+
+	/*
+	 * Check that the implemented DICE driver specification major version
+	 * number matches.
+	 */
+	err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST,
+				 DICE_PRIVATE_SPACE +
+				 be32_to_cpu(pointers[0]) * 4 + GLOBAL_VERSION,
+				 &version, 4);
+	if (err < 0)
+		return -ENODEV;
+	if ((version & cpu_to_be32(0xff000000)) != cpu_to_be32(0x01000000)) {
+		dev_err(&unit->device,
+			"unknown DICE version: 0x%08x\n", be32_to_cpu(version));
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
 static int dice_init_offsets(struct dice *dice)
 {
 	__be32 pointers[6];
-	unsigned int global_size, rx_size;
 	int err;
 
 	err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST,
-				 DICE_PRIVATE_SPACE, &pointers, 6 * 4);
+				 DICE_PRIVATE_SPACE,
+				 pointers, sizeof(pointers));
 	if (err < 0)
 		return err;
 
 	dice->global_offset = be32_to_cpu(pointers[0]) * 4;
-	global_size = be32_to_cpu(pointers[1]);
 	dice->rx_offset = be32_to_cpu(pointers[4]) * 4;
-	rx_size = be32_to_cpu(pointers[5]);
-
-	/* some sanity checks to ensure that we actually have a DICE */
-	if (dice->global_offset < 10 * 4 || global_size < 0x168 / 4 ||
-	    dice->rx_offset < 10 * 4 || rx_size < 0x120 / 4) {
-		dev_err(&dice->unit->device, "invalid register pointers\n");
-		return -ENXIO;
-	}
 
 	return 0;
 }
@@ -881,8 +946,8 @@ static void dice_card_strings(struct dice *dice)
 	strcpy(model, "?");
 	fw_csr_string(dice->unit->directory, CSR_MODEL, model, sizeof(model));
 	snprintf(card->longname, sizeof(card->longname),
-		 "%s %s, GUID %08x%08x at %s, S%d",
-		 vendor, model, dev->config_rom[3], dev->config_rom[4],
+		 "%s %s (serial %u) at %s, S%d",
+		 vendor, model, dev->config_rom[4] & 0x3fffff,
 		 dev_name(&dice->unit->device), 100 << dev->max_speed);
 
 	strcpy(card->mixername, "DICE");
@@ -895,6 +960,10 @@ static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id)
 	__be32 clock_sel;
 	int err;
 
+	err = dice_interface_check(unit);
+	if (err < 0)
+		return err;
+
 	err = snd_card_create(-1, NULL, THIS_MODULE, sizeof(*dice), &card);
 	if (err < 0)
 		return err;
@@ -1020,15 +1089,12 @@ static void dice_bus_reset(struct fw_unit *unit)
 	mutex_unlock(&dice->mutex);
 }
 
-#define TC_OUI		0x000166
 #define DICE_INTERFACE	0x000001
 
 static const struct ieee1394_device_id dice_id_table[] = {
 	{
-		.match_flags  = IEEE1394_MATCH_SPECIFIER_ID |
-				IEEE1394_MATCH_VERSION,
-		.specifier_id = TC_OUI,
-		.version      = DICE_INTERFACE,
+		.match_flags = IEEE1394_MATCH_VERSION,
+		.version     = DICE_INTERFACE,
 	},
 	{ }
 };
-- 
cgit 


From a7304e3bf0489d3fc0260bdb9c1441427a26a38f Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 4 Sep 2011 22:16:10 +0200
Subject: ALSA: dice: support dual-wire stream format at 192 kHz

Change the AMDTP streaming code to handle the non-standard stream format
that DICE devices use at sample rates greater than 96 kHz.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/amdtp.c    | 155 +++++++++++++++++++++++++++++++++++++---------
 sound/firewire/amdtp.h    |  41 ++++--------
 sound/firewire/dice.c     |  29 ++++++---
 sound/firewire/speakers.c |   6 +-
 4 files changed, 164 insertions(+), 67 deletions(-)

diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index d56b8e736b7d..a09c3b393c0b 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -65,42 +65,66 @@ void amdtp_out_stream_destroy(struct amdtp_out_stream *s)
 }
 EXPORT_SYMBOL(amdtp_out_stream_destroy);
 
+unsigned int amdtp_syt_intervals[CIP_SFC_COUNT] = {
+	[CIP_SFC_32000]  =  8,
+	[CIP_SFC_44100]  =  8,
+	[CIP_SFC_48000]  =  8,
+	[CIP_SFC_88200]  = 16,
+	[CIP_SFC_96000]  = 16,
+	[CIP_SFC_176400] = 32,
+	[CIP_SFC_192000] = 32,
+};
+EXPORT_SYMBOL(amdtp_syt_intervals);
+
 /**
- * amdtp_out_stream_set_rate - set the sample rate
+ * amdtp_out_stream_set_parameters - set stream parameters
  * @s: the AMDTP output stream to configure
  * @rate: the sample rate
+ * @pcm_channels: the number of PCM samples in each data block, to be encoded
+ *                as AM824 multi-bit linear audio
+ * @midi_ports: the number of MIDI ports (i.e., MPX-MIDI Data Channels)
  *
- * The sample rate must be set before the stream is started, and must not be
+ * The parameters must be set before the stream is started, and must not be
  * changed while the stream is running.
  */
-void amdtp_out_stream_set_rate(struct amdtp_out_stream *s, unsigned int rate)
+void amdtp_out_stream_set_parameters(struct amdtp_out_stream *s,
+				     unsigned int rate,
+				     unsigned int pcm_channels,
+				     unsigned int midi_ports)
 {
-	static const struct {
-		unsigned int rate;
-		unsigned int syt_interval;
-	} rate_info[] = {
-		[CIP_SFC_32000]  = {  32000,  8, },
-		[CIP_SFC_44100]  = {  44100,  8, },
-		[CIP_SFC_48000]  = {  48000,  8, },
-		[CIP_SFC_88200]  = {  88200, 16, },
-		[CIP_SFC_96000]  = {  96000, 16, },
-		[CIP_SFC_176400] = { 176400, 32, },
-		[CIP_SFC_192000] = { 192000, 32, },
+	static const unsigned int rates[] = {
+		[CIP_SFC_32000]  =  32000,
+		[CIP_SFC_44100]  =  44100,
+		[CIP_SFC_48000]  =  48000,
+		[CIP_SFC_88200]  =  88200,
+		[CIP_SFC_96000]  =  96000,
+		[CIP_SFC_176400] = 176400,
+		[CIP_SFC_192000] = 192000,
 	};
 	unsigned int sfc;
 
 	if (WARN_ON(amdtp_out_stream_running(s)))
 		return;
 
-	for (sfc = 0; sfc < ARRAY_SIZE(rate_info); ++sfc)
-		if (rate_info[sfc].rate == rate)
+	for (sfc = 0; sfc < CIP_SFC_COUNT; ++sfc)
+		if (rates[sfc] == rate)
 			goto sfc_found;
 	WARN_ON(1);
 	return;
 
 sfc_found:
+	s->dual_wire = (s->flags & CIP_HI_DUALWIRE) && sfc > CIP_SFC_96000;
+	if (s->dual_wire) {
+		sfc -= 2;
+		rate /= 2;
+		pcm_channels *= 2;
+	}
 	s->sfc = sfc;
-	s->syt_interval = rate_info[sfc].syt_interval;
+	s->data_block_quadlets = pcm_channels + DIV_ROUND_UP(midi_ports, 8);
+	s->pcm_channels = pcm_channels;
+	s->midi_ports = midi_ports;
+
+	s->syt_interval = amdtp_syt_intervals[sfc];
 
 	/* default buffering in the device */
 	s->transfer_delay = TRANSFER_DELAY_TICKS - TICKS_PER_CYCLE;
@@ -108,21 +132,17 @@ sfc_found:
 		/* additional buffering needed to adjust for no-data packets */
 		s->transfer_delay += TICKS_PER_SECOND * s->syt_interval / rate;
 }
-EXPORT_SYMBOL(amdtp_out_stream_set_rate);
+EXPORT_SYMBOL(amdtp_out_stream_set_parameters);
 
 /**
  * amdtp_out_stream_get_max_payload - get the stream's packet size
  * @s: the AMDTP output stream
  *
  * This function must not be called before the stream has been configured
- * with amdtp_out_stream_set_rate(), amdtp_out_stream_set_pcm(), and
- * amdtp_out_stream_set_midi().
+ * with amdtp_out_stream_set_parameters().
  */
 unsigned int amdtp_out_stream_get_max_payload(struct amdtp_out_stream *s)
 {
-	s->data_block_quadlets = s->pcm_channels;
-	s->data_block_quadlets += DIV_ROUND_UP(s->midi_ports, 8);
-
 	return 8 + s->syt_interval * s->data_block_quadlets * 4;
 }
 EXPORT_SYMBOL(amdtp_out_stream_get_max_payload);
@@ -133,14 +153,21 @@ static void amdtp_write_s16(struct amdtp_out_stream *s,
 static void amdtp_write_s32(struct amdtp_out_stream *s,
 			    struct snd_pcm_substream *pcm,
 			    __be32 *buffer, unsigned int frames);
+static void amdtp_write_s16_dualwire(struct amdtp_out_stream *s,
+				     struct snd_pcm_substream *pcm,
+				     __be32 *buffer, unsigned int frames);
+static void amdtp_write_s32_dualwire(struct amdtp_out_stream *s,
+				     struct snd_pcm_substream *pcm,
+				     __be32 *buffer, unsigned int frames);
 
 /**
  * amdtp_out_stream_set_pcm_format - set the PCM format
  * @s: the AMDTP output stream to configure
  * @format: the format of the ALSA PCM device
  *
- * The sample format must be set before the stream is started, and must not be
- * changed while the stream is running.
+ * The sample format must be set after the other paramters (rate/PCM channels/
+ * MIDI) and before the stream is started, and must not be changed while the
+ * stream is running.
  */
 void amdtp_out_stream_set_pcm_format(struct amdtp_out_stream *s,
 				     snd_pcm_format_t format)
@@ -153,10 +180,16 @@ void amdtp_out_stream_set_pcm_format(struct amdtp_out_stream *s,
 		WARN_ON(1);
 		/* fall through */
 	case SNDRV_PCM_FORMAT_S16:
-		s->transfer_samples = amdtp_write_s16;
+		if (s->dual_wire)
+			s->transfer_samples = amdtp_write_s16_dualwire;
+		else
+			s->transfer_samples = amdtp_write_s16;
 		break;
 	case SNDRV_PCM_FORMAT_S32:
-		s->transfer_samples = amdtp_write_s32;
+		if (s->dual_wire)
+			s->transfer_samples = amdtp_write_s32_dualwire;
+		else
+			s->transfer_samples = amdtp_write_s32;
 		break;
 	}
 }
@@ -305,6 +338,68 @@ static void amdtp_write_s16(struct amdtp_out_stream *s,
 	}
 }
 
+static void amdtp_write_s32_dualwire(struct amdtp_out_stream *s,
+				     struct snd_pcm_substream *pcm,
+				     __be32 *buffer, unsigned int frames)
+{
+	struct snd_pcm_runtime *runtime = pcm->runtime;
+	unsigned int channels, frame_adjust_1, frame_adjust_2, i, c;
+	const u32 *src;
+
+	channels = s->pcm_channels;
+	src = (void *)runtime->dma_area +
+			s->pcm_buffer_pointer * (runtime->frame_bits / 8);
+	frame_adjust_1 = channels - 1;
+	frame_adjust_2 = 1 - (s->data_block_quadlets - channels);
+
+	channels /= 2;
+	for (i = 0; i < frames; ++i) {
+		for (c = 0; c < channels; ++c) {
+			*buffer = cpu_to_be32((*src >> 8) | 0x40000000);
+			src++;
+			buffer += 2;
+		}
+		buffer -= frame_adjust_1;
+		for (c = 0; c < channels; ++c) {
+			*buffer = cpu_to_be32((*src >> 8) | 0x40000000);
+			src++;
+			buffer += 2;
+		}
+		buffer -= frame_adjust_2;
+	}
+}
+
+static void amdtp_write_s16_dualwire(struct amdtp_out_stream *s,
+				     struct snd_pcm_substream *pcm,
+				     __be32 *buffer, unsigned int frames)
+{
+	struct snd_pcm_runtime *runtime = pcm->runtime;
+	unsigned int channels, frame_adjust_1, frame_adjust_2, i, c;
+	const u16 *src;
+
+	channels = s->pcm_channels;
+	src = (void *)runtime->dma_area +
+			s->pcm_buffer_pointer * (runtime->frame_bits / 8);
+	frame_adjust_1 = channels - 1;
+	frame_adjust_2 = 1 - (s->data_block_quadlets - channels);
+
+	channels /= 2;
+	for (i = 0; i < frames; ++i) {
+		for (c = 0; c < channels; ++c) {
+			*buffer = cpu_to_be32((*src << 8) | 0x40000000);
+			src++;
+			buffer += 2;
+		}
+		buffer -= frame_adjust_1;
+		for (c = 0; c < channels; ++c) {
+			*buffer = cpu_to_be32((*src << 8) | 0x40000000);
+			src++;
+			buffer += 2;
+		}
+		buffer -= frame_adjust_2;
+	}
+}
+
 static void amdtp_fill_pcm_silence(struct amdtp_out_stream *s,
 				   __be32 *buffer, unsigned int frames)
 {
@@ -390,6 +485,9 @@ static void queue_out_packet(struct amdtp_out_stream *s, unsigned int cycle)
 	s->packet_index = index;
 
 	if (pcm) {
+		if (s->dual_wire)
+			data_blocks *= 2;
+
 		ptr = s->pcm_buffer_pointer + data_blocks;
 		if (ptr >= pcm->runtime->buffer_size)
 			ptr -= pcm->runtime->buffer_size;
@@ -459,8 +557,7 @@ static int queue_initial_skip_packets(struct amdtp_out_stream *s)
  * @speed: firewire speed code
  *
  * The stream cannot be started until it has been configured with
- * amdtp_out_stream_set_rate(), amdtp_out_stream_set_pcm(),
- * amdtp_out_stream_set_midi(), and amdtp_out_stream_set_format();
+ * amdtp_out_stream_set_parameters() and amdtp_out_stream_set_pcm_format(),
  * and it must be started before any PCM or MIDI device can be started.
  */
 int amdtp_out_stream_start(struct amdtp_out_stream *s, int channel, int speed)
diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
index 28b1bf5891e6..f3d03dd92c39 100644
--- a/sound/firewire/amdtp.h
+++ b/sound/firewire/amdtp.h
@@ -15,10 +15,15 @@
  * @CIP_BLOCKING: In blocking mode, each packet contains either zero or
  *	SYT_INTERVAL samples, with these two types alternating so that
  *	the overall sample rate comes out right.
+ * @CIP_HI_DUALWIRE: At rates above 96 kHz, pretend that the stream runs
+ *	at half the actual sample rate with twice the number of channels;
+ *	two samples of a channel are stored consecutively in the packet.
+ *	Requires blocking mode and SYT_INTERVAL-aligned PCM buffer size.
  */
 enum cip_out_flags {
 	CIP_NONBLOCKING	= 0x00,
 	CIP_BLOCKING	= 0x01,
+	CIP_HI_DUALWIRE	= 0x02,
 };
 
 /**
@@ -32,6 +37,7 @@ enum cip_sfc {
 	CIP_SFC_96000  = 4,
 	CIP_SFC_176400 = 5,
 	CIP_SFC_192000 = 6,
+	CIP_SFC_COUNT
 };
 
 #define AMDTP_OUT_PCM_FORMAT_BITS	(SNDRV_PCM_FMTBIT_S16 | \
@@ -48,6 +54,7 @@ struct amdtp_out_stream {
 	struct mutex mutex;
 
 	enum cip_sfc sfc;
+	bool dual_wire;
 	unsigned int data_block_quadlets;
 	unsigned int pcm_channels;
 	unsigned int midi_ports;
@@ -80,7 +87,10 @@ int amdtp_out_stream_init(struct amdtp_out_stream *s, struct fw_unit *unit,
 			  enum cip_out_flags flags);
 void amdtp_out_stream_destroy(struct amdtp_out_stream *s);
 
-void amdtp_out_stream_set_rate(struct amdtp_out_stream *s, unsigned int rate);
+void amdtp_out_stream_set_parameters(struct amdtp_out_stream *s,
+				     unsigned int rate,
+				     unsigned int pcm_channels,
+				     unsigned int midi_ports);
 unsigned int amdtp_out_stream_get_max_payload(struct amdtp_out_stream *s);
 
 int amdtp_out_stream_start(struct amdtp_out_stream *s, int channel, int speed);
@@ -93,38 +103,13 @@ void amdtp_out_stream_pcm_prepare(struct amdtp_out_stream *s);
 unsigned long amdtp_out_stream_pcm_pointer(struct amdtp_out_stream *s);
 void amdtp_out_stream_pcm_abort(struct amdtp_out_stream *s);
 
+extern unsigned int amdtp_syt_intervals[CIP_SFC_COUNT];
+
 static inline bool amdtp_out_stream_running(struct amdtp_out_stream *s)
 {
 	return !IS_ERR(s->context);
 }
 
-/**
- * amdtp_out_stream_set_pcm - configure format of PCM samples
- * @s: the AMDTP output stream to be configured
- * @pcm_channels: the number of PCM samples in each data block, to be encoded
- *                as AM824 multi-bit linear audio
- *
- * This function must not be called while the stream is running.
- */
-static inline void amdtp_out_stream_set_pcm(struct amdtp_out_stream *s,
-					    unsigned int pcm_channels)
-{
-	s->pcm_channels = pcm_channels;
-}
-
-/**
- * amdtp_out_stream_set_midi - configure format of MIDI data
- * @s: the AMDTP output stream to be configured
- * @midi_ports: the number of MIDI ports (i.e., MPX-MIDI Data Channels)
- *
- * This function must not be called while the stream is running.
- */
-static inline void amdtp_out_stream_set_midi(struct amdtp_out_stream *s,
-					     unsigned int midi_ports)
-{
-	s->midi_ports = midi_ports;
-}
-
 /**
  * amdtp_out_streaming_error - check for streaming error
  * @s: the AMDTP output stream
diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index b4827ff45d68..8804e42a96c6 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -375,7 +375,7 @@ static int dice_open(struct snd_pcm_substream *substream)
 	struct dice *dice = substream->private_data;
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	__be32 clock_sel, number_audio, number_midi;
-	unsigned int rate;
+	unsigned int rate_index, rate;
 	int err;
 
 	err = dice_try_lock(dice);
@@ -387,12 +387,13 @@ static int dice_open(struct snd_pcm_substream *substream)
 				 &clock_sel, 4);
 	if (err < 0)
 		goto err_lock;
-	rate = (be32_to_cpu(clock_sel) & CLOCK_RATE_MASK) >> CLOCK_RATE_SHIFT;
-	if (rate >= ARRAY_SIZE(dice_rates)) {
+	rate_index = (be32_to_cpu(clock_sel) & CLOCK_RATE_MASK)
+							>> CLOCK_RATE_SHIFT;
+	if (rate_index >= ARRAY_SIZE(dice_rates)) {
 		err = -ENXIO;
 		goto err_lock;
 	}
-	rate = dice_rates[rate];
+	rate = dice_rates[rate_index];
 
 	err = snd_fw_transaction(dice->unit, TCODE_READ_QUADLET_REQUEST,
 				 rx_address(dice, RX_NUMBER_AUDIO),
@@ -413,9 +414,20 @@ static int dice_open(struct snd_pcm_substream *substream)
 	runtime->hw.channels_min = be32_to_cpu(number_audio);
 	runtime->hw.channels_max = be32_to_cpu(number_audio);
 
-	amdtp_out_stream_set_rate(&dice->stream, rate);
-	amdtp_out_stream_set_pcm(&dice->stream, be32_to_cpu(number_audio));
-	amdtp_out_stream_set_midi(&dice->stream, be32_to_cpu(number_midi));
+	amdtp_out_stream_set_parameters(&dice->stream, rate,
+					be32_to_cpu(number_audio),
+					be32_to_cpu(number_midi));
+
+	err = snd_pcm_hw_constraint_step(runtime, 0,
+					 SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
+					 amdtp_syt_intervals[rate_index]);
+	if (err < 0)
+		goto err_lock;
+	err = snd_pcm_hw_constraint_step(runtime, 0,
+					 SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
+					 amdtp_syt_intervals[rate_index]);
+	if (err < 0)
+		goto err_lock;
 
 	err = snd_pcm_hw_constraint_minmax(runtime,
 					   SNDRV_PCM_HW_PARAM_PERIOD_TIME,
@@ -993,7 +1005,8 @@ static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id)
 		goto err_notification_handler;
 	dice->resources.channels_mask = 0x00000000ffffffffuLL;
 
-	err = amdtp_out_stream_init(&dice->stream, unit, CIP_BLOCKING);
+	err = amdtp_out_stream_init(&dice->stream, unit,
+				    CIP_BLOCKING | CIP_HI_DUALWIRE);
 	if (err < 0)
 		goto err_resources;
 
diff --git a/sound/firewire/speakers.c b/sound/firewire/speakers.c
index 0ac56304baff..6a68caf1d04f 100644
--- a/sound/firewire/speakers.c
+++ b/sound/firewire/speakers.c
@@ -245,8 +245,10 @@ static int fwspk_hw_params(struct snd_pcm_substream *substream,
 	if (err < 0)
 		goto error;
 
-	amdtp_out_stream_set_rate(&fwspk->stream, params_rate(hw_params));
-	amdtp_out_stream_set_pcm(&fwspk->stream, params_channels(hw_params));
+	amdtp_out_stream_set_parameters(&fwspk->stream,
+					params_rate(hw_params),
+					params_channels(hw_params),
+					0);
 
 	amdtp_out_stream_set_pcm_format(&fwspk->stream,
 					params_format(hw_params));
-- 
cgit 


From a644a9473f7f9519e2fe519136959dd0e671572a Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 4 Sep 2011 22:17:31 +0200
Subject: ALSA: dice: optimize reading of consecutive registers

Instead of reading two consecutive register with two quadlet requests,
use one block read request.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice.c | 27 +++++++++++----------------
 1 file changed, 11 insertions(+), 16 deletions(-)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 8804e42a96c6..e1d8dff23397 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -374,8 +374,8 @@ static int dice_open(struct snd_pcm_substream *substream)
 	};
 	struct dice *dice = substream->private_data;
 	struct snd_pcm_runtime *runtime = substream->runtime;
-	__be32 clock_sel, number_audio, number_midi;
-	unsigned int rate_index, rate;
+	__be32 clock_sel, data[2];
+	unsigned int rate_index, number_audio, number_midi;
 	int err;
 
 	err = dice_try_lock(dice);
@@ -393,30 +393,25 @@ static int dice_open(struct snd_pcm_substream *substream)
 		err = -ENXIO;
 		goto err_lock;
 	}
-	rate = dice_rates[rate_index];
 
-	err = snd_fw_transaction(dice->unit, TCODE_READ_QUADLET_REQUEST,
+	err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST,
 				 rx_address(dice, RX_NUMBER_AUDIO),
-				 &number_audio, 4);
-	if (err < 0)
-		goto err_lock;
-	err = snd_fw_transaction(dice->unit, TCODE_READ_QUADLET_REQUEST,
-				 rx_address(dice, RX_NUMBER_MIDI),
-				 &number_midi, 4);
+				 data, 2 * 4);
 	if (err < 0)
 		goto err_lock;
+	number_audio = be32_to_cpu(data[0]);
+	number_midi = be32_to_cpu(data[1]);
 
 	runtime->hw = hardware;
 
-	runtime->hw.rates = snd_pcm_rate_to_rate_bit(rate);
+	runtime->hw.rates = snd_pcm_rate_to_rate_bit(dice_rates[rate_index]);
 	snd_pcm_limit_hw_rates(runtime);
 
-	runtime->hw.channels_min = be32_to_cpu(number_audio);
-	runtime->hw.channels_max = be32_to_cpu(number_audio);
+	runtime->hw.channels_min = number_audio;
+	runtime->hw.channels_max = number_audio;
 
-	amdtp_out_stream_set_parameters(&dice->stream, rate,
-					be32_to_cpu(number_audio),
-					be32_to_cpu(number_midi));
+	amdtp_out_stream_set_parameters(&dice->stream, dice_rates[rate_index],
+					number_audio, number_midi);
 
 	err = snd_pcm_hw_constraint_step(runtime, 0,
 					 SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
-- 
cgit 


From 1b70485f135a39d5f2d8c392a16817456fa3a5cd Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 4 Sep 2011 22:17:38 +0200
Subject: ALSA: firewire: extend snd_fw_transaction()

Add a flag to snd_fw_transaction() to allow it to abort when a bus reset
happens.  This removes most of the duplicated error handling loops that
were required around calls to the low-level fw_run_transaction().

Also add a flag to suppress error messages; errors are expected when we
attempt to clean up after the device was unplugged.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/cmp.c      |  50 +++++------
 sound/firewire/dice.c     | 207 ++++++++++++++--------------------------------
 sound/firewire/fcp.c      |   2 +-
 sound/firewire/isight.c   |  43 +++++-----
 sound/firewire/lib.c      |  24 ++++--
 sound/firewire/lib.h      |   7 +-
 sound/firewire/scs1x.c    |   8 +-
 sound/firewire/speakers.c |   2 +-
 8 files changed, 137 insertions(+), 206 deletions(-)

diff --git a/sound/firewire/cmp.c b/sound/firewire/cmp.c
index 645cb0ba4293..efdbf585e404 100644
--- a/sound/firewire/cmp.c
+++ b/sound/firewire/cmp.c
@@ -48,9 +48,6 @@ static int pcr_modify(struct cmp_connection *c,
 		      int (*check)(struct cmp_connection *c, __be32 pcr),
 		      enum bus_reset_handling bus_reset_handling)
 {
-	struct fw_device *device = fw_parent_device(c->resources.unit);
-	int generation = c->resources.generation;
-	int rcode, errors = 0;
 	__be32 old_arg, buffer[2];
 	int err;
 
@@ -59,36 +56,31 @@ static int pcr_modify(struct cmp_connection *c,
 		old_arg = buffer[0];
 		buffer[1] = modify(c, buffer[0]);
 
-		rcode = fw_run_transaction(
-				device->card, TCODE_LOCK_COMPARE_SWAP,
-				device->node_id, generation, device->max_speed,
+		err = snd_fw_transaction(
+				c->resources.unit, TCODE_LOCK_COMPARE_SWAP,
 				CSR_REGISTER_BASE + CSR_IPCR(c->pcr_index),
-				buffer, 8);
-
-		if (rcode == RCODE_COMPLETE) {
-			if (buffer[0] == old_arg) /* success? */
-				break;
-
-			if (check) {
-				err = check(c, buffer[0]);
-				if (err < 0)
-					return err;
-			}
-		} else if (rcode == RCODE_GENERATION)
-			goto bus_reset;
-		else if (rcode_is_permanent_error(rcode) || ++errors >= 3)
-			goto io_error;
+				buffer, 8,
+				FW_FIXED_GENERATION | c->resources.generation);
+
+		if (err < 0) {
+			if (err == -EAGAIN &&
+			    bus_reset_handling == SUCCEED_ON_BUS_RESET)
+				err = 0;
+			return err;
+		}
+
+		if (buffer[0] == old_arg) /* success? */
+			break;
+
+		if (check) {
+			err = check(c, buffer[0]);
+			if (err < 0)
+				return err;
+		}
 	}
 	c->last_pcr_value = buffer[1];
 
 	return 0;
-
-io_error:
-	cmp_error(c, "transaction failed: %s\n", fw_rcode_string(rcode));
-	return -EIO;
-
-bus_reset:
-	return bus_reset_handling == ABORT_ON_BUS_RESET ? -EAGAIN : 0;
 }
 
 
@@ -108,7 +100,7 @@ int cmp_connection_init(struct cmp_connection *c,
 
 	err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST,
 				 CSR_REGISTER_BASE + CSR_IMPR,
-				 &impr_be, 4);
+				 &impr_be, 4, 0);
 	if (err < 0)
 		return err;
 	impr = be32_to_cpu(impr_be);
diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index e1d8dff23397..59d5ca4438b2 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -118,7 +118,7 @@ static int dice_owner_set(struct dice *dice)
 {
 	struct fw_device *device = fw_parent_device(dice->unit);
 	__be64 *buffer;
-	int rcode, err, errors = 0;
+	int err, errors = 0;
 
 	buffer = kmalloc(2 * 8, GFP_KERNEL);
 	if (!buffer)
@@ -132,31 +132,24 @@ static int dice_owner_set(struct dice *dice)
 
 		dice->owner_generation = device->generation;
 		smp_rmb(); /* node_id vs. generation */
-		rcode = fw_run_transaction(device->card,
-					   TCODE_LOCK_COMPARE_SWAP,
-					   device->node_id,
-					   dice->owner_generation,
-					   device->max_speed,
-					   global_address(dice, GLOBAL_OWNER),
-					   buffer, 2 * 8);
-
-		if (rcode == RCODE_COMPLETE) {
-			if (buffer[0] == cpu_to_be64(OWNER_NO_OWNER)) {
-				err = 0;
-			} else {
+		err = snd_fw_transaction(dice->unit,
+					 TCODE_LOCK_COMPARE_SWAP,
+					 global_address(dice, GLOBAL_OWNER),
+					 buffer, 2 * 8,
+					 FW_FIXED_GENERATION |
+							dice->owner_generation);
+
+		if (err == 0) {
+			if (buffer[0] != cpu_to_be64(OWNER_NO_OWNER)) {
 				dev_err(&dice->unit->device,
 					"device is already in use\n");
 				err = -EBUSY;
 			}
 			break;
 		}
-		if (rcode_is_permanent_error(rcode) || ++errors >= 3) {
-			dev_err(&dice->unit->device,
-				"setting device owner failed: %s\n",
-				fw_rcode_string(rcode));
-			err = -EIO;
+		if (err != -EAGAIN || ++errors >= 3)
 			break;
-		}
+
 		msleep(20);
 	}
 
@@ -169,7 +162,7 @@ static int dice_owner_update(struct dice *dice)
 {
 	struct fw_device *device = fw_parent_device(dice->unit);
 	__be64 *buffer;
-	int rcode, err, errors = 0;
+	int err;
 
 	if (dice->owner_generation == -1)
 		return 0;
@@ -178,44 +171,26 @@ static int dice_owner_update(struct dice *dice)
 	if (!buffer)
 		return -ENOMEM;
 
-	for (;;) {
-		buffer[0] = cpu_to_be64(OWNER_NO_OWNER);
-		buffer[1] = cpu_to_be64(
-			((u64)device->card->node_id << OWNER_NODE_SHIFT) |
-			dice->notification_handler.offset);
+	buffer[0] = cpu_to_be64(OWNER_NO_OWNER);
+	buffer[1] = cpu_to_be64(
+		((u64)device->card->node_id << OWNER_NODE_SHIFT) |
+		dice->notification_handler.offset);
 
-		dice->owner_generation = device->generation;
-		smp_rmb(); /* node_id vs. generation */
-		rcode = fw_run_transaction(device->card,
-					   TCODE_LOCK_COMPARE_SWAP,
-					   device->node_id,
-					   dice->owner_generation,
-					   device->max_speed,
-					   global_address(dice, GLOBAL_OWNER),
-					   buffer, 2 * 8);
-
-		if (rcode == RCODE_COMPLETE) {
-			if (buffer[0] == cpu_to_be64(OWNER_NO_OWNER)) {
-				err = 0;
-			} else {
-				dev_err(&dice->unit->device,
-					"device is already in use\n");
-				err = -EBUSY;
-			}
-			break;
-		}
-		if (rcode == RCODE_GENERATION) {
-			err = 0; /* try again later */
-			break;
-		}
-		if (rcode_is_permanent_error(rcode) || ++errors >= 3) {
+	dice->owner_generation = device->generation;
+	smp_rmb(); /* node_id vs. generation */
+	err = snd_fw_transaction(dice->unit, TCODE_LOCK_COMPARE_SWAP,
+				 global_address(dice, GLOBAL_OWNER),
+				 buffer, 2 * 8,
+				 FW_FIXED_GENERATION | dice->owner_generation);
+
+	if (err == 0) {
+		if (buffer[0] != cpu_to_be64(OWNER_NO_OWNER)) {
 			dev_err(&dice->unit->device,
-				"setting device owner failed: %s\n",
-				fw_rcode_string(rcode));
-			err = -EIO;
-			break;
+				"device is already in use\n");
+			err = -EBUSY;
 		}
-		msleep(20);
+	} else if (err == -EAGAIN) {
+		err = 0; /* try again later */
 	}
 
 	kfree(buffer);
@@ -230,38 +205,19 @@ static void dice_owner_clear(struct dice *dice)
 {
 	struct fw_device *device = fw_parent_device(dice->unit);
 	__be64 *buffer;
-	int rcode, errors = 0;
 
 	buffer = kmalloc(2 * 8, GFP_KERNEL);
 	if (!buffer)
 		return;
 
-	for (;;) {
-		buffer[0] = cpu_to_be64(
-			((u64)device->card->node_id << OWNER_NODE_SHIFT) |
-			dice->notification_handler.offset);
-		buffer[1] = cpu_to_be64(OWNER_NO_OWNER);
-
-		rcode = fw_run_transaction(device->card,
-					   TCODE_LOCK_COMPARE_SWAP,
-					   device->node_id,
-					   dice->owner_generation,
-					   device->max_speed,
-					   global_address(dice, GLOBAL_OWNER),
-					   buffer, 2 * 8);
-
-		if (rcode == RCODE_COMPLETE)
-			break;
-		if (rcode == RCODE_GENERATION)
-			break;
-		if (rcode_is_permanent_error(rcode) || ++errors >= 3) {
-			dev_err(&dice->unit->device,
-				"clearing device owner failed: %s\n",
-				fw_rcode_string(rcode));
-			break;
-		}
-		msleep(20);
-	}
+	buffer[0] = cpu_to_be64(
+		((u64)device->card->node_id << OWNER_NODE_SHIFT) |
+		dice->notification_handler.offset);
+	buffer[1] = cpu_to_be64(OWNER_NO_OWNER);
+	snd_fw_transaction(dice->unit, TCODE_LOCK_COMPARE_SWAP,
+			   global_address(dice, GLOBAL_OWNER),
+			   buffer, 2 * 8, FW_QUIET |
+			   FW_FIXED_GENERATION | dice->owner_generation);
 
 	kfree(buffer);
 
@@ -270,67 +226,32 @@ static void dice_owner_clear(struct dice *dice)
 
 static int dice_enable_set(struct dice *dice)
 {
-	struct fw_device *device = fw_parent_device(dice->unit);
 	__be32 value;
-	int rcode, err, errors = 0;
+	int err;
 
 	value = cpu_to_be32(1);
-	for (;;) {
-		rcode = fw_run_transaction(device->card,
-					   TCODE_WRITE_QUADLET_REQUEST,
-					   device->node_id,
-					   dice->owner_generation,
-					   device->max_speed,
-					   global_address(dice, GLOBAL_ENABLE),
-					   &value, 4);
-		if (rcode == RCODE_COMPLETE) {
-			dice->global_enabled = true;
-			err = 0;
-			break;
-		}
-		if (rcode == RCODE_GENERATION) {
-			err = -EAGAIN;
-			break;
-		}
-		if (rcode_is_permanent_error(rcode) || ++errors >= 3) {
-			dev_err(&dice->unit->device,
-				"device enabling failed: %s\n",
-				fw_rcode_string(rcode));
-			err = -EIO;
-			break;
-		}
-		msleep(20);
-	}
+	err = snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST,
+				 global_address(dice, GLOBAL_ENABLE),
+				 &value, 4,
+				 FW_FIXED_GENERATION | dice->owner_generation);
+	if (err < 0)
+		return err;
 
-	return err;
+	dice->global_enabled = true;
+
+	return 0;
 }
 
 static void dice_enable_clear(struct dice *dice)
 {
-	struct fw_device *device = fw_parent_device(dice->unit);
 	__be32 value;
-	int rcode, errors = 0;
 
 	value = 0;
-	for (;;) {
-		rcode = fw_run_transaction(device->card,
-					   TCODE_WRITE_QUADLET_REQUEST,
-					   device->node_id,
-					   dice->owner_generation,
-					   device->max_speed,
-					   global_address(dice, GLOBAL_ENABLE),
-					   &value, 4);
-		if (rcode == RCODE_COMPLETE ||
-		    rcode == RCODE_GENERATION)
-			break;
-		if (rcode_is_permanent_error(rcode) || ++errors >= 3) {
-			dev_err(&dice->unit->device,
-				"device disabling failed: %s\n",
-				fw_rcode_string(rcode));
-			break;
-		}
-		msleep(20);
-	}
+	snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST,
+			   global_address(dice, GLOBAL_ENABLE),
+			   &value, 4, FW_QUIET |
+			   FW_FIXED_GENERATION | dice->owner_generation);
+
 	dice->global_enabled = false;
 }
 
@@ -384,7 +305,7 @@ static int dice_open(struct snd_pcm_substream *substream)
 
 	err = snd_fw_transaction(dice->unit, TCODE_READ_QUADLET_REQUEST,
 				 global_address(dice, GLOBAL_CLOCK_SELECT),
-				 &clock_sel, 4);
+				 &clock_sel, 4, 0);
 	if (err < 0)
 		goto err_lock;
 	rate_index = (be32_to_cpu(clock_sel) & CLOCK_RATE_MASK)
@@ -396,7 +317,7 @@ static int dice_open(struct snd_pcm_substream *substream)
 
 	err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST,
 				 rx_address(dice, RX_NUMBER_AUDIO),
-				 data, 2 * 4);
+				 data, 2 * 4, 0);
 	if (err < 0)
 		goto err_lock;
 	number_audio = be32_to_cpu(data[0]);
@@ -488,7 +409,7 @@ static int dice_stream_start(struct dice *dice)
 		err = snd_fw_transaction(dice->unit,
 					 TCODE_WRITE_QUADLET_REQUEST,
 					 rx_address(dice, RX_ISOCHRONOUS),
-					 &channel, 4);
+					 &channel, 4, 0);
 		if (err < 0)
 			goto err_resources;
 	}
@@ -502,7 +423,7 @@ static int dice_stream_start(struct dice *dice)
 err_rx_channel:
 	channel = cpu_to_be32((u32)-1);
 	snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST,
-			   rx_address(dice, RX_ISOCHRONOUS), &channel, 4);
+			   rx_address(dice, RX_ISOCHRONOUS), &channel, 4, 0);
 err_resources:
 	fw_iso_resources_free(&dice->resources);
 error:
@@ -528,7 +449,7 @@ static void dice_stream_stop(struct dice *dice)
 
 	channel = cpu_to_be32((u32)-1);
 	snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST,
-			   rx_address(dice, RX_ISOCHRONOUS), &channel, 4);
+			   rx_address(dice, RX_ISOCHRONOUS), &channel, 4, 0);
 
 	fw_iso_resources_free(&dice->resources);
 }
@@ -880,7 +801,7 @@ static int dice_interface_check(struct fw_unit *unit)
 	 */
 	err = snd_fw_transaction(unit, TCODE_READ_BLOCK_REQUEST,
 				 DICE_PRIVATE_SPACE,
-				 pointers, sizeof(pointers));
+				 pointers, sizeof(pointers), 0);
 	if (err < 0)
 		return -ENODEV;
 	for (i = 0; i < ARRAY_SIZE(pointers); ++i) {
@@ -896,7 +817,7 @@ static int dice_interface_check(struct fw_unit *unit)
 	err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST,
 				 DICE_PRIVATE_SPACE +
 				 be32_to_cpu(pointers[0]) * 4 + GLOBAL_VERSION,
-				 &version, 4);
+				 &version, 4, 0);
 	if (err < 0)
 		return -ENODEV;
 	if ((version & cpu_to_be32(0xff000000)) != cpu_to_be32(0x01000000)) {
@@ -915,7 +836,7 @@ static int dice_init_offsets(struct dice *dice)
 
 	err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST,
 				 DICE_PRIVATE_SPACE,
-				 pointers, sizeof(pointers));
+				 pointers, sizeof(pointers), 0);
 	if (err < 0)
 		return err;
 
@@ -939,7 +860,7 @@ static void dice_card_strings(struct dice *dice)
 	BUILD_BUG_ON(NICK_NAME_SIZE < sizeof(card->shortname));
 	err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST,
 				 global_address(dice, GLOBAL_NICK_NAME),
-				 card->shortname, sizeof(card->shortname));
+				 card->shortname, sizeof(card->shortname), 0);
 	if (err >= 0) {
 		/* DICE strings are returned in "always-wrong" endianness */
 		BUILD_BUG_ON(sizeof(card->shortname) % 4 != 0);
@@ -1015,14 +936,14 @@ static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id)
 
 	err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST,
 				 global_address(dice, GLOBAL_CLOCK_SELECT),
-				 &clock_sel, 4);
+				 &clock_sel, 4, 0);
 	if (err < 0)
 		goto error;
 	clock_sel &= cpu_to_be32(~CLOCK_SOURCE_MASK);
 	clock_sel |= cpu_to_be32(CLOCK_SOURCE_ARX1);
 	err = snd_fw_transaction(unit, TCODE_WRITE_QUADLET_REQUEST,
 				 global_address(dice, GLOBAL_CLOCK_SELECT),
-				 &clock_sel, 4);
+				 &clock_sel, 4, 0);
 	if (err < 0)
 		goto error;
 
diff --git a/sound/firewire/fcp.c b/sound/firewire/fcp.c
index ec578b5ad8da..860c08073c59 100644
--- a/sound/firewire/fcp.c
+++ b/sound/firewire/fcp.c
@@ -90,7 +90,7 @@ int fcp_avc_transaction(struct fw_unit *unit,
 					  : TCODE_WRITE_BLOCK_REQUEST;
 		ret = snd_fw_transaction(t.unit, tcode,
 					 CSR_REGISTER_BASE + CSR_FCP_COMMAND,
-					 (void *)command, command_size);
+					 (void *)command, command_size, 0);
 		if (ret < 0)
 			break;
 
diff --git a/sound/firewire/isight.c b/sound/firewire/isight.c
index 58a5afefdc69..fd42e6b315e6 100644
--- a/sound/firewire/isight.c
+++ b/sound/firewire/isight.c
@@ -217,7 +217,7 @@ static void isight_packet(struct fw_iso_context *context, u32 cycle,
 
 static int isight_connect(struct isight *isight)
 {
-	int ch, err, rcode, errors = 0;
+	int ch, err;
 	__be32 value;
 
 retry_after_bus_reset:
@@ -230,27 +230,19 @@ retry_after_bus_reset:
 	}
 
 	value = cpu_to_be32(ch | (isight->device->max_speed << SPEED_SHIFT));
-	for (;;) {
-		rcode = fw_run_transaction(
-				isight->device->card,
-				TCODE_WRITE_QUADLET_REQUEST,
-				isight->device->node_id,
-				isight->resources.generation,
-				isight->device->max_speed,
-				isight->audio_base + REG_ISO_TX_CONFIG,
-				&value, 4);
-		if (rcode == RCODE_COMPLETE) {
-			return 0;
-		} else if (rcode == RCODE_GENERATION) {
-			fw_iso_resources_free(&isight->resources);
-			goto retry_after_bus_reset;
-		} else if (rcode_is_permanent_error(rcode) || ++errors >= 3) {
-			err = -EIO;
-			goto err_resources;
-		}
-		msleep(5);
+	err = snd_fw_transaction(isight->unit, TCODE_WRITE_QUADLET_REQUEST,
+				 isight->audio_base + REG_ISO_TX_CONFIG,
+				 &value, 4, FW_FIXED_GENERATION |
+				 isight->resources.generation);
+	if (err == -EAGAIN) {
+		fw_iso_resources_free(&isight->resources);
+		goto retry_after_bus_reset;
+	} else if (err < 0) {
+		goto err_resources;
 	}
 
+	return 0;
+
 err_resources:
 	fw_iso_resources_free(&isight->resources);
 error:
@@ -315,17 +307,19 @@ static int isight_hw_params(struct snd_pcm_substream *substream,
 static int reg_read(struct isight *isight, int offset, __be32 *value)
 {
 	return snd_fw_transaction(isight->unit, TCODE_READ_QUADLET_REQUEST,
-				  isight->audio_base + offset, value, 4);
+				  isight->audio_base + offset, value, 4, 0);
 }
 
 static int reg_write(struct isight *isight, int offset, __be32 value)
 {
 	return snd_fw_transaction(isight->unit, TCODE_WRITE_QUADLET_REQUEST,
-				  isight->audio_base + offset, &value, 4);
+				  isight->audio_base + offset, &value, 4, 0);
 }
 
 static void isight_stop_streaming(struct isight *isight)
 {
+	__be32 value;
+
 	if (!isight->context)
 		return;
 
@@ -333,7 +327,10 @@ static void isight_stop_streaming(struct isight *isight)
 	fw_iso_context_destroy(isight->context);
 	isight->context = NULL;
 	fw_iso_resources_free(&isight->resources);
-	reg_write(isight, REG_AUDIO_ENABLE, 0);
+	value = 0;
+	snd_fw_transaction(isight->unit, TCODE_WRITE_QUADLET_REQUEST,
+			   isight->audio_base + REG_AUDIO_ENABLE,
+			   &value, 4, FW_QUIET);
 }
 
 static int isight_hw_free(struct snd_pcm_substream *substream)
diff --git a/sound/firewire/lib.c b/sound/firewire/lib.c
index 14eb41498372..7409edba9f06 100644
--- a/sound/firewire/lib.c
+++ b/sound/firewire/lib.c
@@ -11,7 +11,7 @@
 #include <linux/module.h>
 #include "lib.h"
 
-#define ERROR_RETRY_DELAY_MS	5
+#define ERROR_RETRY_DELAY_MS	20
 
 /**
  * snd_fw_transaction - send a request and wait for its completion
@@ -20,6 +20,9 @@
  * @offset: the address in the target's address space
  * @buffer: input/output data
  * @length: length of @buffer
+ * @flags: use %FW_FIXED_GENERATION and add the generation value to attempt the
+ *         request only in that generation; use %FW_QUIET to suppress error
+ *         messages
  *
  * Submits an asynchronous request to the target device, and waits for the
  * response.  The node ID and the current generation are derived from @unit.
@@ -27,14 +30,18 @@
  * Returns zero on success, or a negative error code.
  */
 int snd_fw_transaction(struct fw_unit *unit, int tcode,
-		       u64 offset, void *buffer, size_t length)
+		       u64 offset, void *buffer, size_t length,
+		       unsigned int flags)
 {
 	struct fw_device *device = fw_parent_device(unit);
 	int generation, rcode, tries = 0;
 
+	generation = flags & FW_GENERATION_MASK;
 	for (;;) {
-		generation = device->generation;
-		smp_rmb(); /* node_id vs. generation */
+		if (!(flags & FW_FIXED_GENERATION)) {
+			generation = device->generation;
+			smp_rmb(); /* node_id vs. generation */
+		}
 		rcode = fw_run_transaction(device->card, tcode,
 					   device->node_id, generation,
 					   device->max_speed, offset,
@@ -43,9 +50,14 @@ int snd_fw_transaction(struct fw_unit *unit, int tcode,
 		if (rcode == RCODE_COMPLETE)
 			return 0;
 
+		if (rcode == RCODE_GENERATION && (flags & FW_FIXED_GENERATION))
+			return -EAGAIN;
+
 		if (rcode_is_permanent_error(rcode) || ++tries >= 3) {
-			dev_err(&unit->device, "transaction failed: %s\n",
-				fw_rcode_string(rcode));
+			if (!(flags & FW_QUIET))
+				dev_err(&unit->device,
+					"transaction failed: %s\n",
+					fw_rcode_string(rcode));
 			return -EIO;
 		}
 
diff --git a/sound/firewire/lib.h b/sound/firewire/lib.h
index aef301476ea9..02cfabc9c3c4 100644
--- a/sound/firewire/lib.h
+++ b/sound/firewire/lib.h
@@ -6,8 +6,13 @@
 
 struct fw_unit;
 
+#define FW_GENERATION_MASK	0x00ff
+#define FW_FIXED_GENERATION	0x0100
+#define FW_QUIET		0x0200
+
 int snd_fw_transaction(struct fw_unit *unit, int tcode,
-		       u64 offset, void *buffer, size_t length);
+		       u64 offset, void *buffer, size_t length,
+		       unsigned int flags);
 
 /* returns true if retrying the transaction would not make sense */
 static inline bool rcode_is_permanent_error(int rcode)
diff --git a/sound/firewire/scs1x.c b/sound/firewire/scs1x.c
index 505fc8123199..858023cf4298 100644
--- a/sound/firewire/scs1x.c
+++ b/sound/firewire/scs1x.c
@@ -369,7 +369,7 @@ static int scs_init_hss_address(struct scs *scs)
 	data = cpu_to_be64(((u64)HSS1394_TAG_CHANGE_ADDRESS << 56) |
 			   scs->hss_handler.offset);
 	err = snd_fw_transaction(scs->unit, TCODE_WRITE_BLOCK_REQUEST,
-				 HSS1394_ADDRESS, &data, 8);
+				 HSS1394_ADDRESS, &data, 8, 0);
 	if (err < 0)
 		dev_err(&scs->unit->device, "HSS1394 communication failed\n");
 
@@ -455,12 +455,16 @@ err_card:
 static void scs_update(struct fw_unit *unit)
 {
 	struct scs *scs = dev_get_drvdata(&unit->device);
+	int generation;
 	__be64 data;
 
 	data = cpu_to_be64(((u64)HSS1394_TAG_CHANGE_ADDRESS << 56) |
 			   scs->hss_handler.offset);
+	generation = fw_parent_device(unit)->generation;
+	smp_rmb(); /* node_id vs. generation */
 	snd_fw_transaction(scs->unit, TCODE_WRITE_BLOCK_REQUEST,
-			   HSS1394_ADDRESS, &data, 8);
+			   HSS1394_ADDRESS, &data, 8,
+			   FW_FIXED_GENERATION | generation);
 }
 
 static void scs_remove(struct fw_unit *unit)
diff --git a/sound/firewire/speakers.c b/sound/firewire/speakers.c
index 6a68caf1d04f..eb3f7dce1d6c 100644
--- a/sound/firewire/speakers.c
+++ b/sound/firewire/speakers.c
@@ -647,7 +647,7 @@ static u32 fwspk_read_firmware_version(struct fw_unit *unit)
 	int err;
 
 	err = snd_fw_transaction(unit, TCODE_READ_QUADLET_REQUEST,
-				 OXFORD_FIRMWARE_ID_ADDRESS, &data, 4);
+				 OXFORD_FIRMWARE_ID_ADDRESS, &data, 4, 0);
 	return err >= 0 ? be32_to_cpu(data) : 0;
 }
 
-- 
cgit 


From eadce07faa8e71d8a0fc7501a5167fb999200225 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 4 Sep 2011 22:17:45 +0200
Subject: ALSA: dice: avoid superflous write at bus reset

When a bus reset happens, the enable register is automatically cleared,
so we do not need to clear it manually when stopping the stream.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 59d5ca4438b2..cfa98a83acb2 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -246,6 +246,9 @@ static void dice_enable_clear(struct dice *dice)
 {
 	__be32 value;
 
+	if (!dice->global_enabled)
+		return;
+
 	value = 0;
 	snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST,
 			   global_address(dice, GLOBAL_ENABLE),
@@ -1009,6 +1012,8 @@ static void dice_bus_reset(struct fw_unit *unit)
 	 * manner.
 	 */
 	amdtp_out_stream_pcm_abort(&dice->stream);
+
+	dice->global_enabled = false;
 	dice_stream_stop_packets(dice);
 
 	dice_owner_update(dice);
-- 
cgit 


From 435a9be8bdb7422b82c194fad2d279ef436addc1 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 4 Sep 2011 22:17:51 +0200
Subject: ALSA: dice: remove 10s period length limit

Since commit f2b3614cefb6 (Don't check DMA time-out too shortly), we
need no longer to restrict the period length to less than 10 s.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index cfa98a83acb2..57ceb13f2815 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -350,7 +350,7 @@ static int dice_open(struct snd_pcm_substream *substream)
 
 	err = snd_pcm_hw_constraint_minmax(runtime,
 					   SNDRV_PCM_HW_PARAM_PERIOD_TIME,
-					   5000, 8192000);
+					   5000, UINT_MAX);
 	if (err < 0)
 		goto err_lock;
 
-- 
cgit 


From 8709f1e4d68b0b3caf9783cf2463e5747943bff8 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Tue, 11 Oct 2011 17:51:16 +0200
Subject: ALSA: dice: remove superfluous field

The pcm field was not actually used.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 57ceb13f2815..2d198aed6f94 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -43,7 +43,6 @@ struct dice {
 	bool global_enabled;
 	wait_queue_head_t hwdep_wait;
 	u32 notification_bits;
-	struct snd_pcm_substream *pcm;
 	struct fw_iso_resources resources;
 	struct amdtp_out_stream stream;
 };
@@ -564,8 +563,7 @@ static int dice_create_pcm(struct dice *dice)
 		return err;
 	pcm->private_data = dice;
 	strcpy(pcm->name, dice->card->shortname);
-	dice->pcm = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
-	dice->pcm->ops = &ops;
+	pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream->ops = &ops;
 
 	return 0;
 }
-- 
cgit 


From a8c558f6a3eedfb9bfd7d9d82f9d00f2f807ce7c Mon Sep 17 00:00:00 2001
From: Stefan Richter <stefanr@s5r6.in-berlin.de>
Date: Sat, 27 Aug 2011 20:05:15 +0200
Subject: ALSA: dice: fix locking

Avoid a lock inversion between dice->mutex and pcm->open_mutex.

Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 2d198aed6f94..2d3a04ef9840 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -981,12 +981,12 @@ static void dice_remove(struct fw_unit *unit)
 {
 	struct dice *dice = dev_get_drvdata(&unit->device);
 
-	mutex_lock(&dice->mutex);
-
 	amdtp_out_stream_pcm_abort(&dice->stream);
 
 	snd_card_disconnect(dice->card);
 
+	mutex_lock(&dice->mutex);
+
 	dice_stream_stop(dice);
 	dice_owner_clear(dice);
 
@@ -999,8 +999,6 @@ static void dice_bus_reset(struct fw_unit *unit)
 {
 	struct dice *dice = dev_get_drvdata(&unit->device);
 
-	mutex_lock(&dice->mutex);
-
 	/*
 	 * On a bus reset, the DICE firmware disables streaming and then goes
 	 * off contemplating its own navel for hundreds of milliseconds before
@@ -1011,6 +1009,8 @@ static void dice_bus_reset(struct fw_unit *unit)
 	 */
 	amdtp_out_stream_pcm_abort(&dice->stream);
 
+	mutex_lock(&dice->mutex);
+
 	dice->global_enabled = false;
 	dice_stream_stop_packets(dice);
 
-- 
cgit 


From c5280e996fdd14ffacfbbdf8ce5ac7f913b101d2 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 16 Oct 2011 21:39:00 +0200
Subject: ALSA: dice: make amdtp_rates[] const

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/amdtp.c | 2 +-
 sound/firewire/amdtp.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index a09c3b393c0b..5540f707bfdb 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -65,7 +65,7 @@ void amdtp_out_stream_destroy(struct amdtp_out_stream *s)
 }
 EXPORT_SYMBOL(amdtp_out_stream_destroy);
 
-unsigned int amdtp_syt_intervals[CIP_SFC_COUNT] = {
+const unsigned int amdtp_syt_intervals[CIP_SFC_COUNT] = {
 	[CIP_SFC_32000]  =  8,
 	[CIP_SFC_44100]  =  8,
 	[CIP_SFC_48000]  =  8,
diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
index f3d03dd92c39..839ebf812d79 100644
--- a/sound/firewire/amdtp.h
+++ b/sound/firewire/amdtp.h
@@ -103,7 +103,7 @@ void amdtp_out_stream_pcm_prepare(struct amdtp_out_stream *s);
 unsigned long amdtp_out_stream_pcm_pointer(struct amdtp_out_stream *s);
 void amdtp_out_stream_pcm_abort(struct amdtp_out_stream *s);
 
-extern unsigned int amdtp_syt_intervals[CIP_SFC_COUNT];
+extern const unsigned int amdtp_syt_intervals[CIP_SFC_COUNT];
 
 static inline bool amdtp_out_stream_running(struct amdtp_out_stream *s)
 {
-- 
cgit 


From a0301998aeebad206fa7e1b77300c9961c8c3d12 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 4 Dec 2011 21:47:00 +0100
Subject: ALSA: dice: get clock capabilities

In preparation for sample rate selection support, ensure that the driver
knows about the device's clock capabilities.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice.c | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 2d3a04ef9840..06fef4752d50 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -36,6 +36,7 @@ struct dice {
 	struct mutex mutex;
 	unsigned int global_offset;
 	unsigned int rx_offset;
+	unsigned int clock_caps;
 	struct fw_address_handler notification_handler;
 	int owner_generation;
 	int dev_lock_count; /* > 0 driver, < 0 userspace */
@@ -830,9 +831,10 @@ static int dice_interface_check(struct fw_unit *unit)
 	return 0;
 }
 
-static int dice_init_offsets(struct dice *dice)
+static int dice_read_params(struct dice *dice)
 {
 	__be32 pointers[6];
+	__be32 value;
 	int err;
 
 	err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST,
@@ -844,6 +846,23 @@ static int dice_init_offsets(struct dice *dice)
 	dice->global_offset = be32_to_cpu(pointers[0]) * 4;
 	dice->rx_offset = be32_to_cpu(pointers[4]) * 4;
 
+	/* some very old firmwares don't tell about their clock support */
+	if (be32_to_cpu(pointers[1]) * 4 >= GLOBAL_CLOCK_CAPABILITIES + 4) {
+		err = snd_fw_transaction(
+				dice->unit, TCODE_READ_QUADLET_REQUEST,
+				global_address(dice, GLOBAL_CLOCK_CAPABILITIES),
+				&value, 4, 0);
+		if (err < 0)
+			return err;
+		dice->clock_caps = be32_to_cpu(value);
+	} else {
+		/* this should be supported by any device */
+		dice->clock_caps = CLOCK_CAP_RATE_44100 |
+				   CLOCK_CAP_RATE_48000 |
+				   CLOCK_CAP_SOURCE_ARX1 |
+				   CLOCK_CAP_SOURCE_INTERNAL;
+	}
+
 	return 0;
 }
 
@@ -905,7 +924,7 @@ static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id)
 	dice->unit = unit;
 	init_waitqueue_head(&dice->hwdep_wait);
 
-	err = dice_init_offsets(dice);
+	err = dice_read_params(dice);
 	if (err < 0)
 		goto err_mutex;
 
-- 
cgit 


From 5ea4018e4321f24e8305ea8a8b0a9c3e270456ae Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Mon, 5 Dec 2011 22:09:42 +0100
Subject: ALSA: dice: allow notifications during initialization

Reorganize the initialization order so that the driver can receive
notifications earlier.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 06fef4752d50..49b47ba09cdd 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -924,10 +924,6 @@ static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id)
 	dice->unit = unit;
 	init_waitqueue_head(&dice->hwdep_wait);
 
-	err = dice_read_params(dice);
-	if (err < 0)
-		goto err_mutex;
-
 	dice->notification_handler.length = 4;
 	dice->notification_handler.address_callback = dice_notification;
 	dice->notification_handler.callback_data = dice;
@@ -936,9 +932,17 @@ static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id)
 	if (err < 0)
 		goto err_mutex;
 
-	err = fw_iso_resources_init(&dice->resources, unit);
+	err = dice_owner_set(dice);
 	if (err < 0)
 		goto err_notification_handler;
+
+	err = dice_read_params(dice);
+	if (err < 0)
+		goto err_owner;
+
+	err = fw_iso_resources_init(&dice->resources, unit);
+	if (err < 0)
+		goto err_owner;
 	dice->resources.channels_mask = 0x00000000ffffffffuLL;
 
 	err = amdtp_out_stream_init(&dice->stream, unit,
@@ -946,10 +950,6 @@ static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id)
 	if (err < 0)
 		goto err_resources;
 
-	err = dice_owner_set(dice);
-	if (err < 0)
-		goto err_stream;
-
 	card->private_free = dice_card_free;
 
 	dice_card_strings(dice);
@@ -983,10 +983,10 @@ static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id)
 
 	return 0;
 
-err_stream:
-	amdtp_out_stream_destroy(&dice->stream);
 err_resources:
 	fw_iso_resources_destroy(&dice->resources);
+err_owner:
+	dice_owner_clear(dice);
 err_notification_handler:
 	fw_core_remove_address_handler(&dice->notification_handler);
 err_mutex:
-- 
cgit 


From 15a75c8bed591dd23a3d221f5ccd91843c109670 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 4 Dec 2011 22:23:59 +0100
Subject: ALSA: dice: get rate-dependent parameters

In preparation for sample rate selection support, read the stream
parameters that might change when running at different sample rates.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice.c | 92 +++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 90 insertions(+), 2 deletions(-)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 49b47ba09cdd..e6bba6d32bd8 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -6,10 +6,12 @@
  */
 
 #include <linux/compat.h>
+#include <linux/completion.h>
 #include <linux/delay.h>
 #include <linux/device.h>
 #include <linux/firewire.h>
 #include <linux/firewire-constants.h>
+#include <linux/jiffies.h>
 #include <linux/module.h>
 #include <linux/mod_devicetable.h>
 #include <linux/mutex.h>
@@ -37,11 +39,14 @@ struct dice {
 	unsigned int global_offset;
 	unsigned int rx_offset;
 	unsigned int clock_caps;
+	unsigned int rx_channels[3];
+	unsigned int rx_midi_ports[3];
 	struct fw_address_handler notification_handler;
 	int owner_generation;
 	int dev_lock_count; /* > 0 driver, < 0 userspace */
 	bool dev_lock_changed;
 	bool global_enabled;
+	struct completion clock_accepted;
 	wait_queue_head_t hwdep_wait;
 	u32 notification_bits;
 	struct fw_iso_resources resources;
@@ -53,15 +58,23 @@ MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>");
 MODULE_LICENSE("GPL v2");
 
 static const unsigned int dice_rates[] = {
+	/* mode 0 */
 	[0] =  32000,
 	[1] =  44100,
 	[2] =  48000,
+	/* mode 1 */
 	[3] =  88200,
 	[4] =  96000,
+	/* mode 2 */
 	[5] = 176400,
 	[6] = 192000,
 };
 
+static unsigned int rate_index_to_mode(unsigned int rate_index)
+{
+	return ((int)rate_index - 1) / 2;
+}
+
 static void dice_lock_changed(struct dice *dice)
 {
 	dice->dev_lock_changed = true;
@@ -264,6 +277,7 @@ static void dice_notification(struct fw_card *card, struct fw_request *request,
 			      void *data, size_t length, void *callback_data)
 {
 	struct dice *dice = callback_data;
+	u32 bits;
 	unsigned long flags;
 
 	if (tcode != TCODE_WRITE_QUADLET_REQUEST) {
@@ -274,10 +288,17 @@ static void dice_notification(struct fw_card *card, struct fw_request *request,
 		fw_send_response(card, request, RCODE_ADDRESS_ERROR);
 		return;
 	}
+
+	bits = be32_to_cpup(data);
+
 	spin_lock_irqsave(&dice->lock, flags);
-	dice->notification_bits |= be32_to_cpup(data);
+	dice->notification_bits |= bits;
 	spin_unlock_irqrestore(&dice->lock, flags);
+
 	fw_send_response(card, request, RCODE_COMPLETE);
+
+	if (bits & NOTIFY_CLOCK_ACCEPTED)
+		complete(&dice->clock_accepted);
 	wake_up(&dice->hwdep_wait);
 }
 
@@ -457,6 +478,26 @@ static void dice_stream_stop(struct dice *dice)
 	fw_iso_resources_free(&dice->resources);
 }
 
+static int dice_change_rate(struct dice *dice, unsigned int clock_rate)
+{
+	__be32 value;
+	int err;
+
+	INIT_COMPLETION(dice->clock_accepted);
+
+	value = cpu_to_be32(clock_rate | CLOCK_SOURCE_ARX1);
+	err = snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST,
+				 global_address(dice, GLOBAL_CLOCK_SELECT),
+				 &value, 4, 0);
+	if (err < 0)
+		return err;
+
+	wait_for_completion_timeout(&dice->clock_accepted,
+				    msecs_to_jiffies(100));
+
+	return 0;
+}
+
 static int dice_hw_params(struct snd_pcm_substream *substream,
 			  struct snd_pcm_hw_params *hw_params)
 {
@@ -831,11 +872,51 @@ static int dice_interface_check(struct fw_unit *unit)
 	return 0;
 }
 
+static int highest_supported_mode_rate(struct dice *dice, unsigned int mode)
+{
+	int i;
+
+	for (i = ARRAY_SIZE(dice_rates) - 1; i >= 0; --i)
+		if ((dice->clock_caps & (1 << i)) &&
+		    rate_index_to_mode(i) == mode)
+			return i;
+
+	return -1;
+}
+
+static int dice_read_mode_params(struct dice *dice, unsigned int mode)
+{
+	__be32 values[2];
+	int rate_index, err;
+
+	rate_index = highest_supported_mode_rate(dice, mode);
+	if (rate_index < 0) {
+		dice->rx_channels[mode] = 0;
+		dice->rx_midi_ports[mode] = 0;
+		return 0;
+	}
+
+	err = dice_change_rate(dice, rate_index << CLOCK_RATE_SHIFT);
+	if (err < 0)
+		return err;
+
+	err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST,
+				 rx_address(dice, RX_NUMBER_AUDIO),
+				 values, 2 * 4, 0);
+	if (err < 0)
+		return err;
+
+	dice->rx_channels[mode]   = be32_to_cpu(values[0]);
+	dice->rx_midi_ports[mode] = be32_to_cpu(values[1]);
+
+	return 0;
+}
+
 static int dice_read_params(struct dice *dice)
 {
 	__be32 pointers[6];
 	__be32 value;
-	int err;
+	int mode, err;
 
 	err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST,
 				 DICE_PRIVATE_SPACE,
@@ -863,6 +944,12 @@ static int dice_read_params(struct dice *dice)
 				   CLOCK_CAP_SOURCE_INTERNAL;
 	}
 
+	for (mode = 2; mode >= 0; --mode) {
+		err = dice_read_mode_params(dice, mode);
+		if (err < 0)
+			return err;
+	}
+
 	return 0;
 }
 
@@ -922,6 +1009,7 @@ static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id)
 	spin_lock_init(&dice->lock);
 	mutex_init(&dice->mutex);
 	dice->unit = unit;
+	init_completion(&dice->clock_accepted);
 	init_waitqueue_head(&dice->hwdep_wait);
 
 	dice->notification_handler.length = 4;
-- 
cgit 


From 4edeb831f32d17fba056eb752f7afc26a19674a0 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 4 Dec 2011 22:07:01 +0100
Subject: ALSA: dice: dynamic sample rate selection

Instead of relying of some control panel application to configure some
fixed sample rate, allow applications to set it automatically.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice.c | 137 +++++++++++++++++++++++++++++++++++++-------------
 1 file changed, 102 insertions(+), 35 deletions(-)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index e6bba6d32bd8..61dd00c4fae3 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -70,6 +70,17 @@ static const unsigned int dice_rates[] = {
 	[6] = 192000,
 };
 
+static unsigned int rate_to_index(unsigned int rate)
+{
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(dice_rates); ++i)
+		if (dice_rates[i] == rate)
+			return i;
+
+	return 0;
+}
+
 static unsigned int rate_index_to_mode(unsigned int rate_index)
 {
 	return ((int)rate_index - 1) / 2;
@@ -302,6 +313,59 @@ static void dice_notification(struct fw_card *card, struct fw_request *request,
 	wake_up(&dice->hwdep_wait);
 }
 
+static int dice_rate_constraint(struct snd_pcm_hw_params *params,
+				struct snd_pcm_hw_rule *rule)
+{
+	struct dice *dice = rule->private;
+	const struct snd_interval *channels =
+		hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+	struct snd_interval *rate =
+		hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+	struct snd_interval allowed_rates = {
+		.min = UINT_MAX, .max = 0, .integer = 1
+	};
+	unsigned int i, mode;
+
+	for (i = 0; i < ARRAY_SIZE(dice_rates); ++i) {
+		mode = rate_index_to_mode(i);
+		if ((dice->clock_caps & (1 << i)) &&
+		    snd_interval_test(channels, dice->rx_channels[mode])) {
+			allowed_rates.min = min(allowed_rates.min,
+						dice_rates[i]);
+			allowed_rates.max = max(allowed_rates.max,
+						dice_rates[i]);
+		}
+	}
+
+	return snd_interval_refine(rate, &allowed_rates);
+}
+
+static int dice_channels_constraint(struct snd_pcm_hw_params *params,
+				    struct snd_pcm_hw_rule *rule)
+{
+	struct dice *dice = rule->private;
+	const struct snd_interval *rate =
+		hw_param_interval_c(params, SNDRV_PCM_HW_PARAM_RATE);
+	struct snd_interval *channels =
+		hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+	struct snd_interval allowed_channels = {
+		.min = UINT_MAX, .max = 0, .integer = 1
+	};
+	unsigned int i, mode;
+
+	for (i = 0; i < ARRAY_SIZE(dice_rates); ++i)
+		if ((dice->clock_caps & (1 << i)) &&
+		    snd_interval_test(rate, dice_rates[i])) {
+			mode = rate_index_to_mode(i);
+			allowed_channels.min = min(allowed_channels.min,
+						   dice->rx_channels[mode]);
+			allowed_channels.max = max(allowed_channels.max,
+						   dice->rx_channels[mode]);
+		}
+
+	return snd_interval_refine(channels, &allowed_channels);
+}
+
 static int dice_open(struct snd_pcm_substream *substream)
 {
 	static const struct snd_pcm_hardware hardware = {
@@ -311,6 +375,8 @@ static int dice_open(struct snd_pcm_substream *substream)
 			SNDRV_PCM_INFO_INTERLEAVED |
 			SNDRV_PCM_INFO_BLOCK_TRANSFER,
 		.formats = AMDTP_OUT_PCM_FORMAT_BITS,
+		.channels_min = UINT_MAX,
+		.channels_max = 0,
 		.buffer_bytes_max = 16 * 1024 * 1024,
 		.period_bytes_min = 1,
 		.period_bytes_max = UINT_MAX,
@@ -319,53 +385,46 @@ static int dice_open(struct snd_pcm_substream *substream)
 	};
 	struct dice *dice = substream->private_data;
 	struct snd_pcm_runtime *runtime = substream->runtime;
-	__be32 clock_sel, data[2];
-	unsigned int rate_index, number_audio, number_midi;
+	unsigned int i;
 	int err;
 
 	err = dice_try_lock(dice);
 	if (err < 0)
 		goto error;
 
-	err = snd_fw_transaction(dice->unit, TCODE_READ_QUADLET_REQUEST,
-				 global_address(dice, GLOBAL_CLOCK_SELECT),
-				 &clock_sel, 4, 0);
-	if (err < 0)
-		goto err_lock;
-	rate_index = (be32_to_cpu(clock_sel) & CLOCK_RATE_MASK)
-							>> CLOCK_RATE_SHIFT;
-	if (rate_index >= ARRAY_SIZE(dice_rates)) {
-		err = -ENXIO;
-		goto err_lock;
-	}
-
-	err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST,
-				 rx_address(dice, RX_NUMBER_AUDIO),
-				 data, 2 * 4, 0);
-	if (err < 0)
-		goto err_lock;
-	number_audio = be32_to_cpu(data[0]);
-	number_midi = be32_to_cpu(data[1]);
-
 	runtime->hw = hardware;
 
-	runtime->hw.rates = snd_pcm_rate_to_rate_bit(dice_rates[rate_index]);
+	for (i = 0; i < ARRAY_SIZE(dice_rates); ++i)
+		if (dice->clock_caps & (1 << i))
+			runtime->hw.rates |=
+				snd_pcm_rate_to_rate_bit(dice_rates[i]);
 	snd_pcm_limit_hw_rates(runtime);
 
-	runtime->hw.channels_min = number_audio;
-	runtime->hw.channels_max = number_audio;
+	for (i = 0; i < 3; ++i)
+		if (dice->rx_channels[i]) {
+			runtime->hw.channels_min = min(runtime->hw.channels_min,
+						       dice->rx_channels[i]);
+			runtime->hw.channels_max = max(runtime->hw.channels_max,
+						       dice->rx_channels[i]);
+		}
 
-	amdtp_out_stream_set_parameters(&dice->stream, dice_rates[rate_index],
-					number_audio, number_midi);
+	err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
+				  dice_rate_constraint, dice,
+				  SNDRV_PCM_HW_PARAM_CHANNELS, -1);
+	if (err < 0)
+		goto err_lock;
+	err = snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
+				  dice_channels_constraint, dice,
+				  SNDRV_PCM_HW_PARAM_RATE, -1);
+	if (err < 0)
+		goto err_lock;
 
 	err = snd_pcm_hw_constraint_step(runtime, 0,
-					 SNDRV_PCM_HW_PARAM_PERIOD_SIZE,
-					 amdtp_syt_intervals[rate_index]);
+					 SNDRV_PCM_HW_PARAM_PERIOD_SIZE, 32);
 	if (err < 0)
 		goto err_lock;
 	err = snd_pcm_hw_constraint_step(runtime, 0,
-					 SNDRV_PCM_HW_PARAM_BUFFER_SIZE,
-					 amdtp_syt_intervals[rate_index]);
+					 SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 32);
 	if (err < 0)
 		goto err_lock;
 
@@ -502,6 +561,7 @@ static int dice_hw_params(struct snd_pcm_substream *substream,
 			  struct snd_pcm_hw_params *hw_params)
 {
 	struct dice *dice = substream->private_data;
+	unsigned int rate_index, mode;
 	int err;
 
 	mutex_lock(&dice->mutex);
@@ -511,15 +571,22 @@ static int dice_hw_params(struct snd_pcm_substream *substream,
 	err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
 					       params_buffer_bytes(hw_params));
 	if (err < 0)
-		goto error;
+		return err;
 
+	rate_index = rate_to_index(params_rate(hw_params));
+	err = dice_change_rate(dice, rate_index << CLOCK_RATE_SHIFT);
+	if (err < 0)
+		return err;
+
+	mode = rate_index_to_mode(rate_index);
+	amdtp_out_stream_set_parameters(&dice->stream,
+					params_rate(hw_params),
+					params_channels(hw_params),
+					dice->rx_midi_ports[mode]);
 	amdtp_out_stream_set_pcm_format(&dice->stream,
 					params_format(hw_params));
 
 	return 0;
-
-error:
-	return err;
 }
 
 static int dice_hw_free(struct snd_pcm_substream *substream)
-- 
cgit 


From 640d9b421d4d8c7593aa8647479a4c7c6fe0ca65 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Thu, 5 Jan 2012 22:16:24 +0100
Subject: ALSA: dice: check clock change timeout

Output a warning if the wait for the clock change notification times
out.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 61dd00c4fae3..3395c8ba7af1 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -551,8 +551,9 @@ static int dice_change_rate(struct dice *dice, unsigned int clock_rate)
 	if (err < 0)
 		return err;
 
-	wait_for_completion_timeout(&dice->clock_accepted,
-				    msecs_to_jiffies(100));
+	if (!wait_for_completion_timeout(&dice->clock_accepted,
+					 msecs_to_jiffies(100)))
+		dev_warn(&dice->unit->device, "clock change timed out\n");
 
 	return 0;
 }
-- 
cgit 


From c614475b0ea9f7e6b3f76a46be315579bb899397 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Thu, 5 Jan 2012 22:36:08 +0100
Subject: ALSA: dice: add a proc file to show device information

For easier debugging, add a proc file to show the device's capabilities
and current status.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice.c | 246 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 246 insertions(+)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 3395c8ba7af1..25a96362e1aa 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -22,6 +22,7 @@
 #include <sound/core.h>
 #include <sound/firewire.h>
 #include <sound/hwdep.h>
+#include <sound/info.h>
 #include <sound/initval.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -857,6 +858,249 @@ static int dice_create_hwdep(struct dice *dice)
 	return 0;
 }
 
+static int dice_proc_read_mem(struct dice *dice, void *buffer,
+			      unsigned int offset_q, unsigned int quadlets)
+{
+	unsigned int i;
+	int err;
+
+	err = snd_fw_transaction(dice->unit, TCODE_READ_BLOCK_REQUEST,
+				 DICE_PRIVATE_SPACE + 4 * offset_q,
+				 buffer, 4 * quadlets, 0);
+	if (err < 0)
+		return err;
+
+	for (i = 0; i < quadlets; ++i)
+		be32_to_cpus(&((u32 *)buffer)[i]);
+
+	return 0;
+}
+
+static const char *str_from_array(const char *const strs[], unsigned int count,
+				  unsigned int i)
+{
+	if (i < count)
+		return strs[i];
+	else
+		return "(unknown)";
+}
+
+static void dice_proc_fixup_string(char *s, unsigned int size)
+{
+	unsigned int i;
+
+	for (i = 0; i < size; i += 4)
+		cpu_to_le32s((u32 *)(s + i));
+
+	for (i = 0; i < size - 2; ++i) {
+		if (s[i] == '\0')
+			return;
+		if (s[i] == '\\' && s[i + 1] == '\\') {
+			s[i + 2] = '\0';
+			return;
+		}
+	}
+	s[size - 1] = '\0';
+}
+
+static void dice_proc_read(struct snd_info_entry *entry,
+			   struct snd_info_buffer *buffer)
+{
+	static const char *const section_names[5] = {
+		"global", "tx", "rx", "ext_sync", "unused2"
+	};
+	static const char *const clock_sources[] = {
+		"aes1", "aes2", "aes3", "aes4", "aes", "adat", "tdif",
+		"wc", "arx1", "arx2", "arx3", "arx4", "internal"
+	};
+	static const char *const rates[] = {
+		"32000", "44100", "48000", "88200", "96000", "176400", "192000",
+		"any low", "any mid", "any high", "none"
+	};
+	struct dice *dice = entry->private_data;
+	u32 sections[ARRAY_SIZE(section_names) * 2];
+	struct {
+		u32 number;
+		u32 size;
+	} tx_rx_header;
+	union {
+		struct {
+			u32 owner_hi, owner_lo;
+			u32 notification;
+			char nick_name[NICK_NAME_SIZE];
+			u32 clock_select;
+			u32 enable;
+			u32 status;
+			u32 extended_status;
+			u32 sample_rate;
+			u32 version;
+			u32 clock_caps;
+			char clock_source_names[CLOCK_SOURCE_NAMES_SIZE];
+		} global;
+		struct {
+			u32 iso;
+			u32 number_audio;
+			u32 number_midi;
+			u32 speed;
+			char names[TX_NAMES_SIZE];
+			u32 ac3_caps;
+			u32 ac3_enable;
+		} tx;
+		struct {
+			u32 iso;
+			u32 seq_start;
+			u32 number_audio;
+			u32 number_midi;
+			char names[RX_NAMES_SIZE];
+			u32 ac3_caps;
+			u32 ac3_enable;
+		} rx;
+		struct {
+			u32 clock_source;
+			u32 locked;
+			u32 rate;
+			u32 adat_user_data;
+		} ext_sync;
+	} buf;
+	unsigned int quadlets, stream, i;
+
+	if (dice_proc_read_mem(dice, sections, 0, ARRAY_SIZE(sections)) < 0)
+		return;
+	snd_iprintf(buffer, "sections:\n");
+	for (i = 0; i < ARRAY_SIZE(section_names); ++i)
+		snd_iprintf(buffer, "  %s: offset %u, size %u\n",
+			    section_names[i],
+			    sections[i * 2], sections[i * 2 + 1]);
+
+	quadlets = min_t(u32, sections[1], sizeof(buf.global) / 4);
+	if (dice_proc_read_mem(dice, &buf.global, sections[0], quadlets) < 0)
+		return;
+	snd_iprintf(buffer, "global:\n");
+	snd_iprintf(buffer, "  owner: %04x:%04x%08x\n",
+		    buf.global.owner_hi >> 16,
+		    buf.global.owner_hi & 0xffff, buf.global.owner_lo);
+	snd_iprintf(buffer, "  notification: %08x\n", buf.global.notification);
+	dice_proc_fixup_string(buf.global.nick_name, NICK_NAME_SIZE);
+	snd_iprintf(buffer, "  nick name: %s\n", buf.global.nick_name);
+	snd_iprintf(buffer, "  clock select: %s %s\n",
+		    str_from_array(clock_sources, ARRAY_SIZE(clock_sources),
+				   buf.global.clock_select & CLOCK_SOURCE_MASK),
+		    str_from_array(rates, ARRAY_SIZE(rates),
+				   (buf.global.clock_select & CLOCK_RATE_MASK)
+				   >> CLOCK_RATE_SHIFT));
+	snd_iprintf(buffer, "  enable: %u\n", buf.global.enable);
+	snd_iprintf(buffer, "  status: %slocked %s\n",
+		    buf.global.status & STATUS_SOURCE_LOCKED ? "" : "un",
+		    str_from_array(rates, ARRAY_SIZE(rates),
+				   (buf.global.status &
+				    STATUS_NOMINAL_RATE_MASK)
+				   >> CLOCK_RATE_SHIFT));
+	snd_iprintf(buffer, "  ext status: %08x\n", buf.global.extended_status);
+	snd_iprintf(buffer, "  sample rate: %u\n", buf.global.sample_rate);
+	snd_iprintf(buffer, "  version: %u.%u.%u.%u\n",
+		    (buf.global.version >> 24) & 0xff,
+		    (buf.global.version >> 16) & 0xff,
+		    (buf.global.version >>  8) & 0xff,
+		    (buf.global.version >>  0) & 0xff);
+	if (quadlets >= 90) {
+		snd_iprintf(buffer, "  clock caps:");
+		for (i = 0; i <= 6; ++i)
+			if (buf.global.clock_caps & (1 << i))
+				snd_iprintf(buffer, " %s", rates[i]);
+		for (i = 0; i <= 12; ++i)
+			if (buf.global.clock_caps & (1 << (16 + i)))
+				snd_iprintf(buffer, " %s", clock_sources[i]);
+		snd_iprintf(buffer, "\n");
+		dice_proc_fixup_string(buf.global.clock_source_names,
+				       CLOCK_SOURCE_NAMES_SIZE);
+		snd_iprintf(buffer, "  clock source names: %s\n",
+			    buf.global.clock_source_names);
+	}
+
+	if (dice_proc_read_mem(dice, &tx_rx_header, sections[2], 2) < 0)
+		return;
+	quadlets = min_t(u32, tx_rx_header.size, sizeof(buf.tx));
+	for (stream = 0; stream < tx_rx_header.number; ++stream) {
+		if (dice_proc_read_mem(dice, &buf.tx, sections[2] + 2 +
+				       stream * tx_rx_header.size,
+				       quadlets) < 0)
+			break;
+		snd_iprintf(buffer, "tx %u:\n", stream);
+		snd_iprintf(buffer, "  iso channel: %d\n", (int)buf.tx.iso);
+		snd_iprintf(buffer, "  audio channels: %u\n",
+			    buf.tx.number_audio);
+		snd_iprintf(buffer, "  midi ports: %u\n", buf.tx.number_midi);
+		snd_iprintf(buffer, "  speed: S%u\n", 100u << buf.tx.speed);
+		if (quadlets >= 68) {
+			dice_proc_fixup_string(buf.tx.names, TX_NAMES_SIZE);
+			snd_iprintf(buffer, "  names: %s\n", buf.tx.names);
+		}
+		if (quadlets >= 70) {
+			snd_iprintf(buffer, "  ac3 caps: %08x\n",
+				    buf.tx.ac3_caps);
+			snd_iprintf(buffer, "  ac3 enable: %08x\n",
+				    buf.tx.ac3_enable);
+		}
+	}
+
+	if (dice_proc_read_mem(dice, &tx_rx_header, sections[4], 2) < 0)
+		return;
+	quadlets = min_t(u32, tx_rx_header.size, sizeof(buf.rx));
+	for (stream = 0; stream < tx_rx_header.number; ++stream) {
+		if (dice_proc_read_mem(dice, &buf.rx, sections[4] + 2 +
+				       stream * tx_rx_header.size,
+				       quadlets) < 0)
+			break;
+		snd_iprintf(buffer, "rx %u:\n", stream);
+		snd_iprintf(buffer, "  iso channel: %d\n", (int)buf.rx.iso);
+		snd_iprintf(buffer, "  sequence start: %u\n",
+			    (int)buf.rx.seq_start);
+		snd_iprintf(buffer, "  audio channels: %u\n",
+			    buf.rx.number_audio);
+		snd_iprintf(buffer, "  midi ports: %u\n", buf.rx.number_midi);
+		if (quadlets >= 68) {
+			dice_proc_fixup_string(buf.rx.names, RX_NAMES_SIZE);
+			snd_iprintf(buffer, "  names: %s\n", buf.rx.names);
+		}
+		if (quadlets >= 70) {
+			snd_iprintf(buffer, "  ac3 caps: %08x\n",
+				    buf.rx.ac3_caps);
+			snd_iprintf(buffer, "  ac3 enable: %08x\n",
+				    buf.rx.ac3_enable);
+		}
+	}
+
+	quadlets = min_t(u32, sections[7], sizeof(buf.ext_sync) / 4);
+	if (quadlets >= 4) {
+		if (dice_proc_read_mem(dice, &buf.ext_sync,
+				       sections[6], 4) < 0)
+			return;
+		snd_iprintf(buffer, "ext status:\n");
+		snd_iprintf(buffer, "  clock source: %s\n",
+			    str_from_array(clock_sources,
+					   ARRAY_SIZE(clock_sources),
+					   buf.ext_sync.clock_source));
+		snd_iprintf(buffer, "  locked: %u\n", buf.ext_sync.locked);
+		snd_iprintf(buffer, "  rate: %s\n",
+			    str_from_array(rates, ARRAY_SIZE(rates),
+					   buf.ext_sync.rate));
+		snd_iprintf(buffer, "  adat user data: ");
+		if (buf.ext_sync.adat_user_data & ADAT_USER_DATA_NO_DATA)
+			snd_iprintf(buffer, "-\n");
+		else
+			snd_iprintf(buffer, "%x\n",
+				    buf.ext_sync.adat_user_data);
+	}
+}
+
+static void dice_create_proc(struct dice *dice)
+{
+	struct snd_info_entry *entry;
+
+	if (!snd_card_proc_new(dice->card, "dice", &entry))
+		snd_info_set_text_ops(entry, dice, dice_proc_read);
+}
+
 static void dice_card_free(struct snd_card *card)
 {
 	struct dice *dice = card->private_data;
@@ -1131,6 +1375,8 @@ static int dice_probe(struct fw_unit *unit, const struct ieee1394_device_id *id)
 	if (err < 0)
 		goto error;
 
+	dice_create_proc(dice);
+
 	err = snd_card_register(card);
 	if (err < 0)
 		goto error;
-- 
cgit 


From 61b8cf0222b256b4f793d99c8bdc9b216d067a76 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 8 Jan 2012 22:18:00 +0100
Subject: ALSA: dice: document quadlet alignment

Doing accesses without quadlet alignment is a bad idea because the
firmware's byte-swapping would garble the data; clarify this in the
documentation.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice-interface.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/firewire/dice-interface.h b/sound/firewire/dice-interface.h
index af916b9d07a4..27b044f84c81 100644
--- a/sound/firewire/dice-interface.h
+++ b/sound/firewire/dice-interface.h
@@ -7,9 +7,9 @@
 
 /*
  * Generally, all registers can be read like memory, i.e., with quadlet read or
- * block read transactions with any alignment or length.  Writes are not
- * allowed except where noted; quadlet-sized registers must be written with
- * a quadlet write transaction.
+ * block read transactions with at least quadlet-aligned offset and length.
+ * Writes are not allowed except where noted; quadlet-sized registers must be
+ * written with a quadlet write transaction.
  *
  * All values are in big endian.  The DICE firmware runs on a little-endian CPU
  * and just byte-swaps _all_ quadlets on the bus, so values without endianness
-- 
cgit 


From ed7e48264cfd3b000ab8dd100e6aa4c1447dd93a Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Sun, 22 Jan 2012 16:46:23 +0100
Subject: ALSA: dice: dice_proc_read: remove wrong typecast

Remove a wrong typecast that resulted from a copy-and-paste error.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 25a96362e1aa..5f0f102cf5f9 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -1053,8 +1053,7 @@ static void dice_proc_read(struct snd_info_entry *entry,
 			break;
 		snd_iprintf(buffer, "rx %u:\n", stream);
 		snd_iprintf(buffer, "  iso channel: %d\n", (int)buf.rx.iso);
-		snd_iprintf(buffer, "  sequence start: %u\n",
-			    (int)buf.rx.seq_start);
+		snd_iprintf(buffer, "  sequence start: %u\n", buf.rx.seq_start);
 		snd_iprintf(buffer, "  audio channels: %u\n",
 			    buf.rx.number_audio);
 		snd_iprintf(buffer, "  midi ports: %u\n", buf.rx.number_midi);
-- 
cgit 


From a471fcde8c2c4b65f110bb4210af3513ee4deeb8 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Mon, 13 Feb 2012 21:55:13 +0100
Subject: ALSA: dice: fix detection of Weiss devices

While most DICE devices keep TCAT's default category ID of 0x04, Weiss
devices identify themselves with 0x00.

Reported-by: Rolf Anderegg <rolf.anderegg@weiss.ch>
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/dice.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 5f0f102cf5f9..49d630ba2d9f 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -1109,7 +1109,10 @@ static void dice_card_free(struct snd_card *card)
 	mutex_destroy(&dice->mutex);
 }
 
-#define DICE_CATEGORY_ID 0x04
+#define OUI_WEISS		0x001c6a
+
+#define DICE_CATEGORY_ID	0x04
+#define WEISS_CATEGORY_ID	0x00
 
 static int dice_interface_check(struct fw_unit *unit)
 {
@@ -1123,15 +1126,15 @@ static int dice_interface_check(struct fw_unit *unit)
 	struct fw_device *device = fw_parent_device(unit);
 	struct fw_csr_iterator it;
 	int key, value, vendor = -1, model = -1, err;
-	unsigned int i;
+	unsigned int category, i;
 	__be32 pointers[ARRAY_SIZE(min_values)];
 	__be32 version;
 
 	/*
 	 * Check that GUID and unit directory are constructed according to DICE
 	 * rules, i.e., that the specifier ID is the GUID's OUI, and that the
-	 * GUID chip ID consists of the 8-bit DICE category ID, the 10-bit
-	 * product ID, and a 22-bit serial number.
+	 * GUID chip ID consists of the 8-bit category ID, the 10-bit product
+	 * ID, and a 22-bit serial number.
 	 */
 	fw_csr_iterator_init(&it, unit->directory);
 	while (fw_csr_iterator_next(&it, &key, &value)) {
@@ -1144,7 +1147,11 @@ static int dice_interface_check(struct fw_unit *unit)
 			break;
 		}
 	}
-	if (device->config_rom[3] != ((vendor << 8) | DICE_CATEGORY_ID) ||
+	if (vendor == OUI_WEISS)
+		category = WEISS_CATEGORY_ID;
+	else
+		category = DICE_CATEGORY_ID;
+	if (device->config_rom[3] != ((vendor << 8) | category) ||
 	    device->config_rom[4] >> 22 != model)
 		return -ENODEV;
 
-- 
cgit 


From b20be8de1b3972ccf9af72850b045214faa8d830 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Tue, 15 Oct 2013 20:26:05 +0200
Subject: ALSA: dice: restrict the driver to playback-only devices

At the moment, this driver supports only playback, while FFADO supports
(only) full-duplex devices.  So, prevent conflicts by not claiming
devices that would be better handled by FFADO.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
---
 sound/firewire/Kconfig | 10 ++++++----
 sound/firewire/dice.c  |  9 +++++++++
 2 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/sound/firewire/Kconfig b/sound/firewire/Kconfig
index 915330989412..b3e274fe4a77 100644
--- a/sound/firewire/Kconfig
+++ b/sound/firewire/Kconfig
@@ -12,14 +12,16 @@ config SND_FIREWIRE_LIB
 	depends on SND_PCM
 
 config SND_DICE
-	tristate "DICE devices (EXPERIMENTAL)"
+	tristate "DICE-based DACs (EXPERIMENTAL)"
 	select SND_HWDEP
 	select SND_PCM
 	select SND_FIREWIRE_LIB
 	help
-	  Say Y here to include support for many FireWire audio interfaces
-	  based on the DICE chip family (DICE-II/Jr/Mini) from TC Applied
-	  Technologies.
+	  Say Y here to include support for many DACs based on the DICE
+	  chip family (DICE-II/Jr/Mini) from TC Applied Technologies.
+
+	  At the moment, this driver supports playback only.  If you
+	  want to use devices that support capturing, use FFADO instead.
 
 	  To compile this driver as a module, choose M here: the module
 	  will be called snd-dice.
diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 49d630ba2d9f..6feee6614193 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -1128,6 +1128,7 @@ static int dice_interface_check(struct fw_unit *unit)
 	int key, value, vendor = -1, model = -1, err;
 	unsigned int category, i;
 	__be32 pointers[ARRAY_SIZE(min_values)];
+	__be32 tx_data[4];
 	__be32 version;
 
 	/*
@@ -1171,6 +1172,14 @@ static int dice_interface_check(struct fw_unit *unit)
 			return -ENODEV;
 	}
 
+	/* We support playback only. Let capture devices be handled by FFADO. */
+	err = snd_fw_transaction(unit, TCODE_READ_BLOCK_REQUEST,
+				 DICE_PRIVATE_SPACE +
+				 be32_to_cpu(pointers[2]) * 4,
+				 tx_data, sizeof(tx_data), 0);
+	if (err < 0 || (tx_data[0] && tx_data[3]))
+		return -ENODEV;
+
 	/*
 	 * Check that the implemented DICE driver specification major version
 	 * number matches.
-- 
cgit 


From da2f5f4852fb44fe66f164c3d531aef7521af701 Mon Sep 17 00:00:00 2001
From: Heiko Stuebner <heiko@sntech.de>
Date: Mon, 21 Oct 2013 05:32:48 +0900
Subject: ARM: S3C24XX: Fix possible dma selection warning

Currently the s3c sound support selects CONFIG_S3C2410_DMA on s3c24xx
architectures while the generic dma config is enabled by CONFIG_S3C24XX_DMA.

With the way the Kconfig options are layed out currently it is possible
to enable Samsung sound support without enabling the necessary dma support
resulting in warnings like
  warning: (SND_SOC_SAMSUNG && SND_S3C24XX_I2S && SND_S3C2412_SOC_I2S &&
       SND_SOC_SAMSUNG_SMDK2443_WM9710 && SND_SOC_SAMSUNG_LN2440SBC_ALC650)
  selects S3C2410_DMA which has unmet direct dependencies (ARCH_S3C24XX &&
       S3C24XX_DMA && (CPU_S3C2410 || CPU_S3C2442))

Therefore bring the s3c2410 dma support in line with the way the other
s3c24xx SoCs handle this by having the SoC dma-support selected if the generic
s3c dma support is enabled and have the sound support depend on S3C24XX_DMA
on these arches. The s3c2442 is using the same dma descriptors and therefore
also selected S3C2410_DMA.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/mach-s3c24xx/Kconfig | 3 ++-
 sound/soc/samsung/Kconfig     | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig
index dba2173e70f3..8f1d327e0cd1 100644
--- a/arch/arm/mach-s3c24xx/Kconfig
+++ b/arch/arm/mach-s3c24xx/Kconfig
@@ -28,6 +28,7 @@ config CPU_S3C2410
 	select CPU_ARM920T
 	select CPU_LLSERIAL_S3C2410
 	select S3C2410_CLOCK
+	select S3C2410_DMA if S3C24XX_DMA
 	select ARM_S3C2410_CPUFREQ if ARM_S3C24XX_CPUFREQ
 	select S3C2410_PM if PM
 	select SAMSUNG_WDT_RESET
@@ -70,6 +71,7 @@ config CPU_S3C2442
 	select CPU_ARM920T
 	select CPU_LLSERIAL_S3C2440
 	select S3C2410_CLOCK
+	select S3C2410_DMA if S3C24XX_DMA
 	select S3C2410_PM if PM
 	help
 	  Support for S3C2442 Samsung Mobile CPU based systems.
@@ -148,7 +150,6 @@ config S3C2410_DMA_DEBUG
 config S3C2410_DMA
 	bool
 	depends on S3C24XX_DMA && (CPU_S3C2410 || CPU_S3C2442)
-	default y if CPU_S3C2410 || CPU_S3C2442
 	help
 	  DMA device selection for S3C2410 and compatible CPUs
 
diff --git a/sound/soc/samsung/Kconfig b/sound/soc/samsung/Kconfig
index 2eea1840315d..37459dfd168d 100644
--- a/sound/soc/samsung/Kconfig
+++ b/sound/soc/samsung/Kconfig
@@ -2,7 +2,7 @@ config SND_SOC_SAMSUNG
 	tristate "ASoC support for Samsung"
 	depends on PLAT_SAMSUNG
 	select S3C64XX_DMA if ARCH_S3C64XX
-	select S3C2410_DMA if ARCH_S3C24XX
+	select S3C24XX_DMA if ARCH_S3C24XX
 	help
 	  Say Y or M if you want to add support for codecs attached to
 	  the Samsung SoCs' Audio interfaces. You will also need to
-- 
cgit 


From 681a2fd26065f6147c1382b4f684df71fd5783aa Mon Sep 17 00:00:00 2001
From: Heiko Stuebner <heiko@sntech.de>
Date: Mon, 21 Oct 2013 05:32:48 +0900
Subject: dmaengine: s3c24xx-dma: add support for the s3c2410 type of
 controller

The earliest variants of the dma controller did not contain support for
controlling clocks.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 drivers/dma/s3c24xx-dma.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/dma/s3c24xx-dma.c b/drivers/dma/s3c24xx-dma.c
index 56c92538bc4c..4cb127978636 100644
--- a/drivers/dma/s3c24xx-dma.c
+++ b/drivers/dma/s3c24xx-dma.c
@@ -1078,6 +1078,13 @@ static void s3c24xx_dma_free_virtual_channels(struct dma_device *dmadev)
 		list_del(&chan->vc.chan.device_node);
 }
 
+/* s3c2410, s3c2440 and s3c2442 have a 0x40 stride without separate clocks */
+static struct soc_data soc_s3c2410 = {
+	.stride = 0x40,
+	.has_reqsel = false,
+	.has_clocks = false,
+};
+
 /* s3c2412 and s3c2413 have a 0x40 stride and dmareqsel mechanism */
 static struct soc_data soc_s3c2412 = {
 	.stride = 0x40,
@@ -1094,6 +1101,9 @@ static struct soc_data soc_s3c2443 = {
 
 static struct platform_device_id s3c24xx_dma_driver_ids[] = {
 	{
+		.name		= "s3c2410-dma",
+		.driver_data	= (kernel_ulong_t)&soc_s3c2410,
+	}, {
 		.name		= "s3c2412-dma",
 		.driver_data	= (kernel_ulong_t)&soc_s3c2412,
 	}, {
-- 
cgit 


From 1fecf8958eb7f90791f2c7e99afac393b64fa976 Mon Sep 17 00:00:00 2001
From: Heiko Stuebner <heiko@sntech.de>
Date: Mon, 21 Oct 2013 05:32:48 +0900
Subject: ARM: S3C24XX: add dma pdata for s3c2410, s3c2440 and s3c2442

s3c2410 and s3c2442 share the same dma channels while s3c2440 has
slight differences. But on all three the reachable sources per dma
channel has constraints attached and thus encodes the usable
combinations using the S3C24XX_DMA_CHANREQ macro.

This also fixes the warning about s3c2410_dma_resource being unused
as reported by Olof Johansson.

Reported-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/mach-s3c24xx/common.c            | 100 ++++++++++++++++++++++++++++++
 arch/arm/mach-s3c24xx/common.h            |   2 +
 include/linux/platform_data/dma-s3c24xx.h |   3 +
 3 files changed, 105 insertions(+)

diff --git a/arch/arm/mach-s3c24xx/common.c b/arch/arm/mach-s3c24xx/common.c
index bdcb29f4ea31..4adaa4b43ffe 100644
--- a/arch/arm/mach-s3c24xx/common.c
+++ b/arch/arm/mach-s3c24xx/common.c
@@ -343,6 +343,50 @@ static struct resource s3c2410_dma_resource[] = {
 };
 #endif
 
+#if defined(CONFIG_CPU_S3C2410) || defined(CONFIG_CPU_S3C2442)
+static struct s3c24xx_dma_channel s3c2410_dma_channels[DMACH_MAX] = {
+	[DMACH_XD0] = { S3C24XX_DMA_AHB, true, S3C24XX_DMA_CHANREQ(0, 0), },
+	[DMACH_XD1] = { S3C24XX_DMA_AHB, true, S3C24XX_DMA_CHANREQ(0, 1), },
+	[DMACH_SDI] = { S3C24XX_DMA_APB, false, S3C24XX_DMA_CHANREQ(2, 0) |
+						S3C24XX_DMA_CHANREQ(2, 2) |
+						S3C24XX_DMA_CHANREQ(1, 3),
+	},
+	[DMACH_SPI0] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(3, 1), },
+	[DMACH_SPI1] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(2, 3), },
+	[DMACH_UART0] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(1, 0), },
+	[DMACH_UART1] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(1, 1), },
+	[DMACH_UART2] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(0, 3), },
+	[DMACH_TIMER] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(3, 0) |
+						 S3C24XX_DMA_CHANREQ(3, 2) |
+						 S3C24XX_DMA_CHANREQ(3, 3),
+	},
+	[DMACH_I2S_IN] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(2, 1) |
+						  S3C24XX_DMA_CHANREQ(1, 2),
+	},
+	[DMACH_I2S_OUT] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(0, 2), },
+	[DMACH_USB_EP1] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(4, 0), },
+	[DMACH_USB_EP2] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(4, 1), },
+	[DMACH_USB_EP3] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(4, 2), },
+	[DMACH_USB_EP4] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(4, 3), },
+};
+
+static struct s3c24xx_dma_platdata s3c2410_dma_platdata = {
+	.num_phy_channels = 4,
+	.channels = s3c2410_dma_channels,
+	.num_channels = DMACH_MAX,
+};
+
+struct platform_device s3c2410_device_dma = {
+	.name		= "s3c2410-dma",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(s3c2410_dma_resource),
+	.resource	= s3c2410_dma_resource,
+	.dev	= {
+		.platform_data	= &s3c2410_dma_platdata,
+	},
+};
+#endif
+
 #ifdef CONFIG_CPU_S3C2412
 static struct s3c24xx_dma_channel s3c2412_dma_channels[DMACH_MAX] = {
 	[DMACH_XD0] = { S3C24XX_DMA_AHB, true, 17 },
@@ -384,6 +428,62 @@ struct platform_device s3c2412_device_dma = {
 };
 #endif
 
+#if defined(CONFIG_CPU_S3C2440)
+static struct s3c24xx_dma_channel s3c2440_dma_channels[DMACH_MAX] = {
+	[DMACH_XD0] = { S3C24XX_DMA_AHB, true, S3C24XX_DMA_CHANREQ(0, 0), },
+	[DMACH_XD1] = { S3C24XX_DMA_AHB, true, S3C24XX_DMA_CHANREQ(0, 1), },
+	[DMACH_SDI] = { S3C24XX_DMA_APB, false, S3C24XX_DMA_CHANREQ(2, 0) |
+						S3C24XX_DMA_CHANREQ(6, 1) |
+						S3C24XX_DMA_CHANREQ(2, 2) |
+						S3C24XX_DMA_CHANREQ(1, 3),
+	},
+	[DMACH_SPI0] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(3, 1), },
+	[DMACH_SPI1] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(2, 3), },
+	[DMACH_UART0] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(1, 0), },
+	[DMACH_UART1] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(1, 1), },
+	[DMACH_UART2] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(0, 3), },
+	[DMACH_TIMER] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(3, 0) |
+						 S3C24XX_DMA_CHANREQ(3, 2) |
+						 S3C24XX_DMA_CHANREQ(3, 3),
+	},
+	[DMACH_I2S_IN] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(2, 1) |
+						  S3C24XX_DMA_CHANREQ(1, 2),
+	},
+	[DMACH_I2S_OUT] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(5, 0) |
+						   S3C24XX_DMA_CHANREQ(0, 2),
+	},
+	[DMACH_PCM_IN] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(6, 0) |
+						  S3C24XX_DMA_CHANREQ(5, 2),
+	},
+	[DMACH_PCM_OUT] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(5, 1) |
+						  S3C24XX_DMA_CHANREQ(6, 3),
+	},
+	[DMACH_MIC_IN] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(6, 2) |
+						  S3C24XX_DMA_CHANREQ(5, 3),
+	},
+	[DMACH_USB_EP1] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(4, 0), },
+	[DMACH_USB_EP2] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(4, 1), },
+	[DMACH_USB_EP3] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(4, 2), },
+	[DMACH_USB_EP4] = { S3C24XX_DMA_APB, true, S3C24XX_DMA_CHANREQ(4, 3), },
+};
+
+static struct s3c24xx_dma_platdata s3c2440_dma_platdata = {
+	.num_phy_channels = 4,
+	.channels = s3c2440_dma_channels,
+	.num_channels = DMACH_MAX,
+};
+
+struct platform_device s3c2440_device_dma = {
+	.name		= "s3c2410-dma",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(s3c2410_dma_resource),
+	.resource	= s3c2410_dma_resource,
+	.dev	= {
+		.platform_data	= &s3c2440_dma_platdata,
+	},
+};
+#endif
+
 #if defined(CONFIG_CPUS_3C2443) || defined(CONFIG_CPU_S3C2416)
 static struct resource s3c2443_dma_resource[] = {
 	[0] = DEFINE_RES_MEM(S3C24XX_PA_DMA, S3C24XX_SZ_DMA),
diff --git a/arch/arm/mach-s3c24xx/common.h b/arch/arm/mach-s3c24xx/common.h
index fe071893275f..e46c10417216 100644
--- a/arch/arm/mach-s3c24xx/common.h
+++ b/arch/arm/mach-s3c24xx/common.h
@@ -109,7 +109,9 @@ extern void s3c2443_init_irq(void);
 
 extern struct syscore_ops s3c24xx_irq_syscore_ops;
 
+extern struct platform_device s3c2410_device_dma;
 extern struct platform_device s3c2412_device_dma;
+extern struct platform_device s3c2440_device_dma;
 extern struct platform_device s3c2443_device_dma;
 
 #endif /* __ARCH_ARM_MACH_S3C24XX_COMMON_H */
diff --git a/include/linux/platform_data/dma-s3c24xx.h b/include/linux/platform_data/dma-s3c24xx.h
index 5a0cfffe3bbb..89ba1b0c90e4 100644
--- a/include/linux/platform_data/dma-s3c24xx.h
+++ b/include/linux/platform_data/dma-s3c24xx.h
@@ -9,6 +9,9 @@
  * any later version.
  */
 
+/* Helper to encode the source selection constraints for early s3c socs. */
+#define S3C24XX_DMA_CHANREQ(src, chan)	((BIT(3) | src) << chan * 4)
+
 enum s3c24xx_dma_bus {
 	S3C24XX_DMA_APB,
 	S3C24XX_DMA_AHB,
-- 
cgit 


From ae3c5d74ea0d5e2f1c32c527e5de36c7614525af Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Tue, 8 Oct 2013 07:02:12 +0900
Subject: ARM: EXYNOS: remove CONFIG_MACH_EXYNOS[4, 5]_DT config options

EXYNOS is now Device Tree (DT) only platform so it makes no sense to have
config options responsible for enabling platform specific DT support.

Moreover the kernel image won't even link if neither CONFIG_MACH_EXYNOS4_DT
nor CONFIG_MACH_EXYNOS5_DT config option is enabled (linker fails with "no
machine record defined" error).

Remove CONFIG_MACH_EXYNOS[4,5]_DT config options and just use the standard
CONFIG_ARCH_EXYNOS[4,5] ones instead.

Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
---
 arch/arm/mach-exynos/Kconfig  | 38 +++++++++-----------------------------
 arch/arm/mach-exynos/Makefile |  4 ++--
 2 files changed, 11 insertions(+), 31 deletions(-)

diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index 56fe819ee10b..f9d67a0acb2a 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -14,19 +14,28 @@ menu "SAMSUNG EXYNOS SoCs Support"
 config ARCH_EXYNOS4
 	bool "SAMSUNG EXYNOS4"
 	default y
+	select ARM_AMBA
+	select CLKSRC_OF
+	select CLKSRC_SAMSUNG_PWM if CPU_EXYNOS4210
+	select CPU_EXYNOS4210
 	select GIC_NON_BANKED
+	select KEYBOARD_SAMSUNG if INPUT_KEYBOARD
 	select HAVE_ARM_SCU if SMP
 	select HAVE_SMP
 	select MIGHT_HAVE_CACHE_L2X0
 	select PINCTRL
+	select S5P_DEV_MFC
 	help
 	  Samsung EXYNOS4 SoCs based systems
 
 config ARCH_EXYNOS5
 	bool "SAMSUNG EXYNOS5"
+	select ARM_AMBA
+	select CLKSRC_OF
 	select HAVE_ARM_SCU if SMP
 	select HAVE_SMP
 	select PINCTRL
+	select USB_ARCH_HAS_XHCI
 	help
 	  Samsung EXYNOS5 (Cortex-A15) SoC based systems
 
@@ -110,35 +119,6 @@ config SOC_EXYNOS5440
 	help
 	  Enable EXYNOS5440 SoC support
 
-comment "Flattened Device Tree based board for EXYNOS SoCs"
-
-config MACH_EXYNOS4_DT
-	bool "Samsung Exynos4 Machine using device tree"
-	default y
-	depends on ARCH_EXYNOS4
-	select ARM_AMBA
-	select CLKSRC_OF
-	select CLKSRC_SAMSUNG_PWM if CPU_EXYNOS4210
-	select CPU_EXYNOS4210
-	select KEYBOARD_SAMSUNG if INPUT_KEYBOARD
-	select S5P_DEV_MFC
-	help
-	  Machine support for Samsung Exynos4 machine with device tree enabled.
-	  Select this if a fdt blob is available for the Exynos4 SoC based board.
-	  Note: This is under development and not all peripherals can be supported
-	  with this machine file.
-
-config MACH_EXYNOS5_DT
-	bool "SAMSUNG EXYNOS5 Machine using device tree"
-	default y
-	depends on ARCH_EXYNOS5
-	select ARM_AMBA
-	select CLKSRC_OF
-	select USB_ARCH_HAS_XHCI
-	help
-	  Machine support for Samsung EXYNOS5 machine with device tree enabled.
-	  Select this if a fdt blob is available for the EXYNOS5 SoC based board.
-
 endmenu
 
 endif
diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile
index 53696154aead..8930b66b4abd 100644
--- a/arch/arm/mach-exynos/Makefile
+++ b/arch/arm/mach-exynos/Makefile
@@ -32,5 +32,5 @@ AFLAGS_exynos-smc.o		:=-Wa,-march=armv7-a$(plus_sec)
 
 # machine support
 
-obj-$(CONFIG_MACH_EXYNOS4_DT)		+= mach-exynos4-dt.o
-obj-$(CONFIG_MACH_EXYNOS5_DT)		+= mach-exynos5-dt.o
+obj-$(CONFIG_ARCH_EXYNOS4)	+= mach-exynos4-dt.o
+obj-$(CONFIG_ARCH_EXYNOS5)	+= mach-exynos5-dt.o
-- 
cgit 


From eb03610a9ceb4ebbe70c4a68a5bf9fb509a233c3 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Sat, 19 Oct 2013 18:17:00 +0100
Subject: iio: Correct description how to convert microtesla to gauss

this just fixes the comment; however, I'm not sure if the driver reports
measurements correctly; the raw values are 0.3 uT / LSB; IIO is supposed
to report magnetic fields in Gauss, so the scale should be around 1/300
(ignoring ASA) -- but value and scale are returned as VAL_INT

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/magnetometer/ak8975.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/magnetometer/ak8975.c b/drivers/iio/magnetometer/ak8975.c
index 7105f22d6cd7..ff284e5afd95 100644
--- a/drivers/iio/magnetometer/ak8975.c
+++ b/drivers/iio/magnetometer/ak8975.c
@@ -263,7 +263,7 @@ static int ak8975_setup(struct i2c_client *client)
  *
  * HuT = H * 1229/4096, or roughly, 3/10.
  *
- * Since 1uT = 100 gauss, our final scale factor becomes:
+ * Since 1uT = 0.01 gauss, our final scale factor becomes:
  *
  * Hadj = H * ((ASA + 128) / 256) * 3/10 * 100
  * Hadj = H * ((ASA + 128) * 30 / 256
-- 
cgit 


From 61bdda69222c09efd8943d240cd2a8e0bb659d82 Mon Sep 17 00:00:00 2001
From: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Date: Sun, 20 Oct 2013 19:02:00 +0100
Subject: iio:adc:max1363 support SMBus for 8-bit devices

The driver currently supports only I2C access. But supported devices with an
accuracy of 8-bit are compatible with the SMBus byte access routines.

This patch wraps the send and receive routines depending on the chip
accuracy and fonctionnalities of its adapter.

For instance, this allows us to use a MAX11603 on a ICH7 controller.

This patch also simplifies the max1363_write_basic_config() routine to
use the struct max1363_state fields directly.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/max1363.c | 76 +++++++++++++++++++++++++++++++++++------------
 1 file changed, 57 insertions(+), 19 deletions(-)

diff --git a/drivers/iio/adc/max1363.c b/drivers/iio/adc/max1363.c
index cc07b3765fe0..6118dced02b6 100644
--- a/drivers/iio/adc/max1363.c
+++ b/drivers/iio/adc/max1363.c
@@ -165,6 +165,8 @@ struct max1363_chip_info {
  * @thresh_low:		low threshold values
  * @vref:		Reference voltage regulator
  * @vref_uv:		Actual (external or internal) reference voltage
+ * @send:		function used to send data to the chip
+ * @recv:		function used to receive data from the chip
  */
 struct max1363_state {
 	struct i2c_client		*client;
@@ -186,6 +188,10 @@ struct max1363_state {
 	s16				thresh_low[8];
 	struct regulator		*vref;
 	u32				vref_uv;
+	int				(*send)(const struct i2c_client *client,
+						const char *buf, int count);
+	int				(*recv)(const struct i2c_client *client,
+						char *buf, int count);
 };
 
 #define MAX1363_MODE_SINGLE(_num, _mask) {				\
@@ -311,13 +317,37 @@ static const struct max1363_mode
 	return NULL;
 }
 
-static int max1363_write_basic_config(struct i2c_client *client,
-				      unsigned char d1,
-				      unsigned char d2)
+static int max1363_smbus_send(const struct i2c_client *client, const char *buf,
+		int count)
 {
-	u8 tx_buf[2] = {d1, d2};
+	int i, err;
 
-	return i2c_master_send(client, tx_buf, 2);
+	for (i = err = 0; err == 0 && i < count; ++i)
+		err = i2c_smbus_write_byte(client, buf[i]);
+
+	return err ? err : count;
+}
+
+static int max1363_smbus_recv(const struct i2c_client *client, char *buf,
+		int count)
+{
+	int i, ret;
+
+	for (i = 0; i < count; ++i) {
+		ret = i2c_smbus_read_byte(client);
+		if (ret < 0)
+			return ret;
+		buf[i] = ret;
+	}
+
+	return count;
+}
+
+static int max1363_write_basic_config(struct max1363_state *st)
+{
+	u8 tx_buf[2] = { st->setupbyte, st->configbyte };
+
+	return st->send(st->client, tx_buf, 2);
 }
 
 static int max1363_set_scan_mode(struct max1363_state *st)
@@ -327,9 +357,7 @@ static int max1363_set_scan_mode(struct max1363_state *st)
 			    | MAX1363_SE_DE_MASK);
 	st->configbyte |= st->current_mode->conf;
 
-	return max1363_write_basic_config(st->client,
-					  st->setupbyte,
-					  st->configbyte);
+	return max1363_write_basic_config(st);
 }
 
 static int max1363_read_single_chan(struct iio_dev *indio_dev,
@@ -366,7 +394,7 @@ static int max1363_read_single_chan(struct iio_dev *indio_dev,
 	}
 	if (st->chip_info->bits != 8) {
 		/* Get reading */
-		data = i2c_master_recv(client, rxbuf, 2);
+		data = st->recv(client, rxbuf, 2);
 		if (data < 0) {
 			ret = data;
 			goto error_ret;
@@ -375,7 +403,7 @@ static int max1363_read_single_chan(struct iio_dev *indio_dev,
 		  ((1 << st->chip_info->bits) - 1);
 	} else {
 		/* Get reading */
-		data = i2c_master_recv(client, rxbuf, 1);
+		data = st->recv(client, rxbuf, 1);
 		if (data < 0) {
 			ret = data;
 			goto error_ret;
@@ -772,11 +800,11 @@ static irqreturn_t max1363_event_handler(int irq, void *private)
 	u8 tx[2] = { st->setupbyte,
 		     MAX1363_MON_INT_ENABLE | (st->monitor_speed << 1) | 0xF0 };
 
-	i2c_master_recv(st->client, &rx, 1);
+	st->recv(st->client, &rx, 1);
 	mask = rx;
 	for_each_set_bit(loc, &mask, 8)
 		iio_push_event(indio_dev, max1363_event_codes[loc], timestamp);
-	i2c_master_send(st->client, tx, 2);
+	st->send(st->client, tx, 2);
 
 	return IRQ_HANDLED;
 }
@@ -812,9 +840,7 @@ static int max1363_monitor_mode_update(struct max1363_state *st, int enabled)
 		st->setupbyte &= ~MAX1363_SETUP_MONITOR_SETUP;
 		st->configbyte &= ~MAX1363_SCAN_MASK;
 		st->monitor_on = false;
-		return max1363_write_basic_config(st->client,
-						st->setupbyte,
-						st->configbyte);
+		return max1363_write_basic_config(st);
 	}
 
 	/* Ensure we are in the relevant mode */
@@ -876,7 +902,7 @@ static int max1363_monitor_mode_update(struct max1363_state *st, int enabled)
 		}
 
 
-	ret = i2c_master_send(st->client, tx_buf, len);
+	ret = st->send(st->client, tx_buf, len);
 	if (ret < 0)
 		goto error_ret;
 	if (ret != len) {
@@ -893,7 +919,7 @@ static int max1363_monitor_mode_update(struct max1363_state *st, int enabled)
 	 */
 	tx_buf[0] = st->setupbyte;
 	tx_buf[1] = MAX1363_MON_INT_ENABLE | (st->monitor_speed << 1) | 0xF0;
-	ret = i2c_master_send(st->client, tx_buf, 2);
+	ret = st->send(st->client, tx_buf, 2);
 	if (ret < 0)
 		goto error_ret;
 	if (ret != 2) {
@@ -1481,9 +1507,9 @@ static irqreturn_t max1363_trigger_handler(int irq, void *p)
 	if (rxbuf == NULL)
 		goto done;
 	if (st->chip_info->bits != 8)
-		b_sent = i2c_master_recv(st->client, rxbuf, numvals*2);
+		b_sent = st->recv(st->client, rxbuf, numvals * 2);
 	else
-		b_sent = i2c_master_recv(st->client, rxbuf, numvals);
+		b_sent = st->recv(st->client, rxbuf, numvals);
 	if (b_sent < 0)
 		goto done_free;
 
@@ -1550,6 +1576,18 @@ static int max1363_probe(struct i2c_client *client,
 		st->vref_uv = vref_uv;
 	}
 
+	if (i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+		st->send = i2c_master_send;
+		st->recv = i2c_master_recv;
+	} else if (i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE)
+			&& st->chip_info->bits == 8) {
+		st->send = max1363_smbus_send;
+		st->recv = max1363_smbus_recv;
+	} else {
+		ret = -EOPNOTSUPP;
+		goto error_disable_reg;
+	}
+
 	ret = max1363_alloc_scan_masks(indio_dev);
 	if (ret)
 		goto error_disable_reg;
-- 
cgit 


From cfcff69af8447df8dd3c5b14349c3b84b8b569a5 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sun, 20 Oct 2013 18:14:20 +0100
Subject: ASoC: si476x: Fix locking of core

The conversion of the si476x to regmap removed locking of the core during
register updates, allowing things like power state changes for the MFD to
happen during a register update. Avoid this by taking the core lock in the
DAI operations (which are the only things that do register updates) as we
used to do in the open coded register I/O functions.

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Andrey Smirnov <andrew.smirnov@gmail.com>
---
 sound/soc/codecs/si476x.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/si476x.c b/sound/soc/codecs/si476x.c
index 03645ce42063..52e7cb08434b 100644
--- a/sound/soc/codecs/si476x.c
+++ b/sound/soc/codecs/si476x.c
@@ -73,6 +73,7 @@ static const struct snd_soc_dapm_route si476x_dapm_routes[] = {
 static int si476x_codec_set_dai_fmt(struct snd_soc_dai *codec_dai,
 				    unsigned int fmt)
 {
+	struct si476x_core *core = i2c_mfd_cell_to_core(codec_dai->dev);
 	int err;
 	u16 format = 0;
 
@@ -136,9 +137,14 @@ static int si476x_codec_set_dai_fmt(struct snd_soc_dai *codec_dai,
 		return -EINVAL;
 	}
 
+	si476x_core_lock(core);
+
 	err = snd_soc_update_bits(codec_dai->codec, SI476X_DIGITAL_IO_OUTPUT_FORMAT,
 				  SI476X_DIGITAL_IO_OUTPUT_FORMAT_MASK,
 				  format);
+
+	si476x_core_unlock(core);
+
 	if (err < 0) {
 		dev_err(codec_dai->codec->dev, "Failed to set output format\n");
 		return err;
@@ -151,6 +157,7 @@ static int si476x_codec_hw_params(struct snd_pcm_substream *substream,
 				  struct snd_pcm_hw_params *params,
 				  struct snd_soc_dai *dai)
 {
+	struct si476x_core *core = i2c_mfd_cell_to_core(dai->dev);
 	int rate, width, err;
 
 	rate = params_rate(params);
@@ -176,11 +183,13 @@ static int si476x_codec_hw_params(struct snd_pcm_substream *substream,
 		return -EINVAL;
 	}
 
+	si476x_core_lock(core);
+
 	err = snd_soc_write(dai->codec, SI476X_DIGITAL_IO_OUTPUT_SAMPLE_RATE,
 			    rate);
 	if (err < 0) {
 		dev_err(dai->codec->dev, "Failed to set sample rate\n");
-		return err;
+		goto out;
 	}
 
 	err = snd_soc_update_bits(dai->codec, SI476X_DIGITAL_IO_OUTPUT_FORMAT,
@@ -189,10 +198,13 @@ static int si476x_codec_hw_params(struct snd_pcm_substream *substream,
 				  (width << SI476X_DIGITAL_IO_SAMPLE_SIZE_SHIFT));
 	if (err < 0) {
 		dev_err(dai->codec->dev, "Failed to set output width\n");
-		return err;
+		goto out;
 	}
 
-	return 0;
+out:
+	si476x_core_unlock(core);
+
+	return err;
 }
 
 static int si476x_codec_probe(struct snd_soc_codec *codec)
-- 
cgit 


From 64990a431469a58b2949aca5be9d69e220d53892 Mon Sep 17 00:00:00 2001
From: Nicolin Chen <b42378@freescale.com>
Date: Fri, 23 Aug 2013 19:20:34 +0800
Subject: ARM: imx6q: Add pll4_audio_div to clock tree

There's a pll4_audio_div clock, an extra divider for pll4, missing
in current clock tree, thus add it.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 Documentation/devicetree/bindings/clock/imx6q-clock.txt | 1 +
 arch/arm/mach-imx/clk-imx6q.c                           | 9 +++++----
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/clock/imx6q-clock.txt b/Documentation/devicetree/bindings/clock/imx6q-clock.txt
index 5a90a724b520..e8b1baae9ae4 100644
--- a/Documentation/devicetree/bindings/clock/imx6q-clock.txt
+++ b/Documentation/devicetree/bindings/clock/imx6q-clock.txt
@@ -215,6 +215,7 @@ clocks and IDs.
 	cko2      		200
 	cko      		201
 	vdoa      		202
+	pll4_audio_div		203
 
 Examples:
 
diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
index 9181a241d3a8..913ad85ad621 100644
--- a/arch/arm/mach-imx/clk-imx6q.c
+++ b/arch/arm/mach-imx/clk-imx6q.c
@@ -182,7 +182,7 @@ static const char *periph2_clk2_sels[]	= { "pll3_usb_otg", "pll2_bus", };
 static const char *periph_sels[]	= { "periph_pre", "periph_clk2", };
 static const char *periph2_sels[]	= { "periph2_pre", "periph2_clk2", };
 static const char *axi_sels[]		= { "periph", "pll2_pfd2_396m", "periph", "pll3_pfd1_540m", };
-static const char *audio_sels[]	= { "pll4_post_div", "pll3_pfd2_508m", "pll3_pfd3_454m", "pll3_usb_otg", };
+static const char *audio_sels[]	= { "pll4_audio_div", "pll3_pfd2_508m", "pll3_pfd3_454m", "pll3_usb_otg", };
 static const char *gpu_axi_sels[]	= { "axi", "ahb", };
 static const char *gpu2d_core_sels[]	= { "axi", "pll3_usb_otg", "pll2_pfd0_352m", "pll2_pfd2_396m", };
 static const char *gpu3d_core_sels[]	= { "mmdc_ch0_axi", "pll3_usb_otg", "pll2_pfd1_594m", "pll2_pfd2_396m", };
@@ -196,7 +196,7 @@ static const char *ipu2_di0_sels[]	= { "ipu2_di0_pre", "dummy", "dummy", "ldb_di
 static const char *ipu2_di1_sels[]	= { "ipu2_di1_pre", "dummy", "dummy", "ldb_di0", "ldb_di1", };
 static const char *hsi_tx_sels[]	= { "pll3_120m", "pll2_pfd2_396m", };
 static const char *pcie_axi_sels[]	= { "axi", "ahb", };
-static const char *ssi_sels[]		= { "pll3_pfd2_508m", "pll3_pfd3_454m", "pll4_post_div", };
+static const char *ssi_sels[]		= { "pll3_pfd2_508m", "pll3_pfd3_454m", "pll4_audio_div", };
 static const char *usdhc_sels[]	= { "pll2_pfd2_396m", "pll2_pfd0_352m", };
 static const char *enfc_sels[]	= { "pll2_pfd0_352m", "pll2_bus", "pll3_usb_otg", "pll2_pfd2_396m", };
 static const char *emi_sels[]		= { "pll2_pfd2_396m", "pll3_usb_otg", "axi", "pll2_pfd0_352m", };
@@ -205,7 +205,7 @@ static const char *vdo_axi_sels[]	= { "axi", "ahb", };
 static const char *vpu_axi_sels[]	= { "axi", "pll2_pfd2_396m", "pll2_pfd0_352m", };
 static const char *cko1_sels[]	= { "pll3_usb_otg", "pll2_bus", "pll1_sys", "pll5_video_div",
 				    "dummy", "axi", "enfc", "ipu1_di0", "ipu1_di1", "ipu2_di0",
-				    "ipu2_di1", "ahb", "ipg", "ipg_per", "ckil", "pll4_post_div", };
+				    "ipu2_di1", "ahb", "ipg", "ipg_per", "ckil", "pll4_audio_div", };
 static const char *cko2_sels[] = {
 	"mmdc_ch0_axi", "mmdc_ch1_axi", "usdhc4", "usdhc1",
 	"gpu2d_axi", "dummy", "ecspi_root", "gpu3d_axi",
@@ -251,7 +251,7 @@ enum mx6q_clks {
 	ssi2_ipg, ssi3_ipg, rom, usbphy1, usbphy2, ldb_di0_div_3_5, ldb_di1_div_3_5,
 	sata_ref, sata_ref_100m, pcie_ref, pcie_ref_125m, enet_ref, usbphy1_gate,
 	usbphy2_gate, pll4_post_div, pll5_post_div, pll5_video_div, eim_slow,
-	spdif, cko2_sel, cko2_podf, cko2, cko, vdoa, clk_max
+	spdif, cko2_sel, cko2_podf, cko2, cko, vdoa, pll4_audio_div, clk_max
 };
 
 static struct clk *clk[clk_max];
@@ -359,6 +359,7 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
 	clk[twd]       = imx_clk_fixed_factor("twd",       "arm",            1, 2);
 
 	clk[pll4_post_div] = clk_register_divider_table(NULL, "pll4_post_div", "pll4_audio", CLK_SET_RATE_PARENT, base + 0x70, 19, 2, 0, post_div_table, &imx_ccm_lock);
+	clk[pll4_audio_div] = clk_register_divider(NULL, "pll4_audio_div", "pll4_post_div", CLK_SET_RATE_PARENT, base + 0x170, 15, 1, 0, &imx_ccm_lock);
 	clk[pll5_post_div] = clk_register_divider_table(NULL, "pll5_post_div", "pll5_video", CLK_SET_RATE_PARENT, base + 0xa0, 19, 2, 0, post_div_table, &imx_ccm_lock);
 	clk[pll5_video_div] = clk_register_divider_table(NULL, "pll5_video_div", "pll5_post_div", CLK_SET_RATE_PARENT, base + 0x170, 30, 2, 0, video_div_table, &imx_ccm_lock);
 
-- 
cgit 


From 7f6ac89c1d1e0c654ea02c8c2dd0ee8e1ce2795f Mon Sep 17 00:00:00 2001
From: Fugang Duan <B38611@freescale.com>
Date: Tue, 3 Sep 2013 12:26:24 +0800
Subject: ARM: imx6sl: add imx6sl iomux-gpr field define

Add imx6sl iomux-gpr register field define in "imx6q-iomuxc-gpr.h" header
file, which is not fully define all iomux-gpr registers and fields, only
add fec related macro define.

Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 include/linux/mfd/syscon/imx6q-iomuxc-gpr.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h b/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h
index b6bdcd66c07d..7086b2248c8f 100644
--- a/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h
+++ b/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h
@@ -363,4 +363,9 @@
 #define IMX6Q_GPR13_SATA_TX_LVL_1_240_V		(0x1f << 2)
 #define IMX6Q_GPR13_SATA_MPLL_CLK_EN		BIT(1)
 #define IMX6Q_GPR13_SATA_TX_EDGE_RATE		BIT(0)
+
+/* For imx6sl iomux gpr register field define */
+#define IMX6SL_GPR1_FEC_CLOCK_MUX1_SEL_MASK    (0x3 << 17)
+#define IMX6SL_GPR1_FEC_CLOCK_MUX2_SEL_MASK    (0x1 << 14)
+
 #endif /* __LINUX_IMX6Q_IOMUXC_GPR_H */
-- 
cgit 


From a9aec30dcf2aae5929bc43ada552a33c8d737967 Mon Sep 17 00:00:00 2001
From: Fugang Duan <B38611@freescale.com>
Date: Wed, 4 Sep 2013 10:58:17 +0800
Subject: ARM: imx6sl: config iomux-gpr1 to select clock for fec

Config iomux-gpr1 to select clock source for fec system clock.
Clear gpr1[14], gpr1[18-17] bit to select the fec clock source
from internal anatop PLL.

Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/mach-imx6sl.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/arch/arm/mach-imx/mach-imx6sl.c b/arch/arm/mach-imx/mach-imx6sl.c
index c70bd7c64974..21cde21daf9b 100644
--- a/arch/arm/mach-imx/mach-imx6sl.c
+++ b/arch/arm/mach-imx/mach-imx6sl.c
@@ -10,16 +10,37 @@
 #include <linux/irqchip.h>
 #include <linux/of.h>
 #include <linux/of_platform.h>
+#include <linux/mfd/syscon.h>
+#include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
+#include <linux/regmap.h>
 #include <asm/mach/arch.h>
 #include <asm/mach/map.h>
 
 #include "common.h"
 
+static void __init imx6sl_fec_init(void)
+{
+	struct regmap *gpr;
+
+	/* set FEC clock from internal PLL clock source */
+	gpr = syscon_regmap_lookup_by_compatible("fsl,imx6sl-iomuxc-gpr");
+	if (!IS_ERR(gpr)) {
+		regmap_update_bits(gpr, IOMUXC_GPR1,
+			IMX6SL_GPR1_FEC_CLOCK_MUX2_SEL_MASK, 0);
+		regmap_update_bits(gpr, IOMUXC_GPR1,
+			IMX6SL_GPR1_FEC_CLOCK_MUX1_SEL_MASK, 0);
+	} else {
+		pr_err("failed to find fsl,imx6sl-iomux-gpr regmap\n");
+	}
+}
+
 static void __init imx6sl_init_machine(void)
 {
 	mxc_arch_reset_init_dt();
 
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+
+	imx6sl_fec_init();
 }
 
 static void __init imx6sl_init_irq(void)
-- 
cgit 


From 4c1dd3e5edc1619199b4a42618169ac3ac457cb5 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Wed, 4 Sep 2013 07:04:39 +0200
Subject: ARM: imx: remove IRQF_DISABLED

This flag is a NOOP since 2.6.35 and can be removed.

This is an update for 3.11 of a patch already sent for 3.10

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/Kconfig             | 2 +-
 arch/arm/mach-imx/epit.c              | 2 +-
 arch/arm/mach-imx/mach-armadillo5x0.c | 3 +--
 arch/arm/mach-imx/mach-mx31_3ds.c     | 2 +-
 arch/arm/mach-imx/mach-pcm037.c       | 3 +--
 arch/arm/mach-imx/mx31lilly-db.c      | 3 +--
 arch/arm/mach-imx/time.c              | 2 +-
 7 files changed, 7 insertions(+), 10 deletions(-)

diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 29a8af6922a8..9f67338ac2ee 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -24,7 +24,7 @@ config MXC_IRQ_PRIOR
 	help
 	  Select this if you want to use prioritized IRQ handling.
 	  This feature prevents higher priority ISR to be interrupted
-	  by lower priority IRQ even IRQF_DISABLED flag is not set.
+	  by lower priority IRQ.
 	  This may be useful in embedded applications, where are strong
 	  requirements for timing.
 	  Say N here, unless you have a specialized requirement.
diff --git a/arch/arm/mach-imx/epit.c b/arch/arm/mach-imx/epit.c
index e02de188ae83..074b1a81ba76 100644
--- a/arch/arm/mach-imx/epit.c
+++ b/arch/arm/mach-imx/epit.c
@@ -171,7 +171,7 @@ static irqreturn_t epit_timer_interrupt(int irq, void *dev_id)
 
 static struct irqaction epit_timer_irq = {
 	.name		= "i.MX EPIT Timer Tick",
-	.flags		= IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
+	.flags		= IRQF_TIMER | IRQF_IRQPOLL,
 	.handler	= epit_timer_interrupt,
 };
 
diff --git a/arch/arm/mach-imx/mach-armadillo5x0.c b/arch/arm/mach-imx/mach-armadillo5x0.c
index 368a6e3f5926..58b864a3fc20 100644
--- a/arch/arm/mach-imx/mach-armadillo5x0.c
+++ b/arch/arm/mach-imx/mach-armadillo5x0.c
@@ -404,8 +404,7 @@ static int armadillo5x0_sdhc1_init(struct device *dev,
 
 	/* When supported the trigger type have to be BOTH */
 	ret = request_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_ATA_DMACK)),
-			  detect_irq,
-			  IRQF_DISABLED | IRQF_TRIGGER_FALLING,
+			  detect_irq, IRQF_TRIGGER_FALLING,
 			  "sdhc-detect", data);
 
 	if (ret)
diff --git a/arch/arm/mach-imx/mach-mx31_3ds.c b/arch/arm/mach-imx/mach-mx31_3ds.c
index 1ed916175d41..50044a21b388 100644
--- a/arch/arm/mach-imx/mach-mx31_3ds.c
+++ b/arch/arm/mach-imx/mach-mx31_3ds.c
@@ -311,7 +311,7 @@ static int mx31_3ds_sdhc1_init(struct device *dev,
 	}
 
 	ret = request_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO3_1)),
-			  detect_irq, IRQF_DISABLED |
+			  detect_irq,
 			  IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
 			  "sdhc1-detect", data);
 	if (ret) {
diff --git a/arch/arm/mach-imx/mach-pcm037.c b/arch/arm/mach-imx/mach-pcm037.c
index bc0261e99d39..45303bd62902 100644
--- a/arch/arm/mach-imx/mach-pcm037.c
+++ b/arch/arm/mach-imx/mach-pcm037.c
@@ -371,8 +371,7 @@ static int pcm970_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
 #endif
 
 	ret = request_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_SCK6)), detect_irq,
-			IRQF_DISABLED | IRQF_TRIGGER_FALLING,
-				"sdhc-detect", data);
+			IRQF_TRIGGER_FALLING, "sdhc-detect", data);
 	if (ret)
 		goto err_gpio_free_2;
 
diff --git a/arch/arm/mach-imx/mx31lilly-db.c b/arch/arm/mach-imx/mx31lilly-db.c
index d4361b80c5fb..649fe49ce85e 100644
--- a/arch/arm/mach-imx/mx31lilly-db.c
+++ b/arch/arm/mach-imx/mx31lilly-db.c
@@ -130,8 +130,7 @@ static int mxc_mmc1_init(struct device *dev,
 	gpio_direction_input(gpio_wp);
 
 	ret = request_irq(gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_GPIO1_1)),
-			  detect_irq,
-			  IRQF_DISABLED | IRQF_TRIGGER_FALLING,
+			  detect_irq, IRQF_TRIGGER_FALLING,
 			  "MMC detect", data);
 	if (ret)
 		goto exit_free_wp;
diff --git a/arch/arm/mach-imx/time.c b/arch/arm/mach-imx/time.c
index cd46529e9eaa..9b6638aadeaa 100644
--- a/arch/arm/mach-imx/time.c
+++ b/arch/arm/mach-imx/time.c
@@ -250,7 +250,7 @@ static irqreturn_t mxc_timer_interrupt(int irq, void *dev_id)
 
 static struct irqaction mxc_timer_irq = {
 	.name		= "i.MX Timer Tick",
-	.flags		= IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
+	.flags		= IRQF_TIMER | IRQF_IRQPOLL,
 	.handler	= mxc_timer_interrupt,
 };
 
-- 
cgit 


From c7c3eac6277bc60fb4472a16c5af5d54afc83596 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Sun, 12 May 2013 17:22:17 +0800
Subject: ARM: imx: add low-level debug for vybrid

Add low-level debug support for vybrid, so that earlyprintk can be
enabled for debugging early boot issue.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/Kconfig.debug      |  8 ++++++++
 arch/arm/include/debug/vf.S | 26 ++++++++++++++++++++++++++
 2 files changed, 34 insertions(+)
 create mode 100644 arch/arm/include/debug/vf.S

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 9762c84b4198..d597c6b8488b 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -386,6 +386,13 @@ choice
 		  when u-boot hands over to the kernel, the system
 		  silently crashes, with no serial output at all.
 
+	config DEBUG_VF_UART
+		bool "Vybrid UART"
+		depends on SOC_VF610
+		help
+		  Say Y here if you want kernel low-level debugging support
+		  on Vybrid based platforms.
+
 	config DEBUG_NOMADIK_UART
 		bool "Kernel low-level debugging messages via NOMADIK UART"
 		depends on ARCH_NOMADIK
@@ -906,6 +913,7 @@ config DEBUG_LL_INCLUDE
 	default "debug/tegra.S" if DEBUG_TEGRA_UART
 	default "debug/ux500.S" if DEBUG_UX500_UART
 	default "debug/vexpress.S" if DEBUG_VEXPRESS_UART0_DETECT
+	default "debug/vf.S" if DEBUG_VF_UART
 	default "debug/vt8500.S" if DEBUG_VT8500_UART0
 	default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
 	default "mach/debug-macro.S"
diff --git a/arch/arm/include/debug/vf.S b/arch/arm/include/debug/vf.S
new file mode 100644
index 000000000000..ba12cc44b2cb
--- /dev/null
+++ b/arch/arm/include/debug/vf.S
@@ -0,0 +1,26 @@
+/*
+ * Copyright 2013 Freescale Semiconductor, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+	.macro	addruart, rp, rv, tmp
+	ldr	\rp, =0x40028000	@ physical
+	ldr	\rv, =0xfe028000	@ virtual
+	.endm
+
+	.macro	senduart, rd, rx
+	strb	\rd, [\rx, #0x7]	@ Data Register
+	.endm
+
+	.macro	busyuart, rd, rx
+1001:	ldrb	\rd, [\rx, #0x4]	@ Status Register 1
+	tst	\rd, #1 << 6		@ TC
+	beq	1001b			@ wait until transmit done
+	.endm
+
+	.macro	waituart,rd,rx
+	.endm
-- 
cgit 


From bfefdff8f91aa0a9ff1291d18d54498af276a6e5 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Tue, 13 Aug 2013 13:54:02 +0800
Subject: ARM: imx: add soc revision helper functions

Similar to what we do for cpu type, the patch adds helper functions
imx_set_soc_revision() and imx_get_soc_revision() to maintain
imx_soc_revision in cpu.c.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/common.h |  2 ++
 arch/arm/mach-imx/cpu.c    | 12 ++++++++++++
 2 files changed, 14 insertions(+)

diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index 28e8ca0871e8..6ac25f68a6bc 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -77,6 +77,8 @@ extern int imx6q_revision(void);
 extern int mx53_display_revision(void);
 extern void imx_set_aips(void __iomem *);
 extern int mxc_device_init(void);
+void imx_set_soc_revision(unsigned int rev);
+unsigned int imx_get_soc_revision(void);
 
 enum mxc_cpu_pwr_mode {
 	WAIT_CLOCKED,		/* wfi only */
diff --git a/arch/arm/mach-imx/cpu.c b/arch/arm/mach-imx/cpu.c
index e70e3acbf9bd..51f6c51ca878 100644
--- a/arch/arm/mach-imx/cpu.c
+++ b/arch/arm/mach-imx/cpu.c
@@ -8,11 +8,23 @@
 unsigned int __mxc_cpu_type;
 EXPORT_SYMBOL(__mxc_cpu_type);
 
+static unsigned int imx_soc_revision;
+
 void mxc_set_cpu_type(unsigned int type)
 {
 	__mxc_cpu_type = type;
 }
 
+void imx_set_soc_revision(unsigned int rev)
+{
+	imx_soc_revision = rev;
+}
+
+unsigned int imx_get_soc_revision(void)
+{
+	return imx_soc_revision;
+}
+
 void imx_print_silicon_rev(const char *cpu, int srev)
 {
 	if (srev == IMX_CHIP_REVISION_UNKNOWN)
-- 
cgit 


From 3f75978b3742157853618c5c6dd4a5f49aa950b1 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Tue, 13 Aug 2013 14:10:29 +0800
Subject: ARM: imx6q: use common soc revision helpers

It calls imx_set_soc_revision() to set up soc revision in
imx6q_init_revision(), and replaces all the occurrences of
imx6q_revision() with common helper imx_get_soc_revision().

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/clk-imx6q.c  |  5 +++--
 arch/arm/mach-imx/common.h     |  1 -
 arch/arm/mach-imx/mach-imx6q.c | 13 ++++---------
 3 files changed, 7 insertions(+), 12 deletions(-)

diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
index 913ad85ad621..c68156621cc8 100644
--- a/arch/arm/mach-imx/clk-imx6q.c
+++ b/arch/arm/mach-imx/clk-imx6q.c
@@ -300,7 +300,7 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
 	WARN_ON(!base);
 
 	/* Audio/video PLL post dividers do not work on i.MX6q revision 1.0 */
-	if (cpu_is_imx6q() && imx6q_revision() == IMX_CHIP_REVISION_1_0) {
+	if (cpu_is_imx6q() && imx_get_soc_revision() == IMX_CHIP_REVISION_1_0) {
 		post_div_table[1].div = 1;
 		post_div_table[2].div = 1;
 		video_div_table[1].div = 1;
@@ -574,7 +574,8 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
 	clk_register_clkdev(clk[pll4_post_div], "pll4_post_div", NULL);
 	clk_register_clkdev(clk[pll4_audio], "pll4_audio", NULL);
 
-	if ((imx6q_revision() != IMX_CHIP_REVISION_1_0) || cpu_is_imx6dl()) {
+	if ((imx_get_soc_revision() != IMX_CHIP_REVISION_1_0) ||
+	    cpu_is_imx6dl()) {
 		clk_set_parent(clk[ldb_di0_sel], clk[pll5_video_div]);
 		clk_set_parent(clk[ldb_di1_sel], clk[pll5_video_div]);
 	}
diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index 6ac25f68a6bc..cac12870efb3 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -73,7 +73,6 @@ extern void mxc_restart(enum reboot_mode, const char *);
 extern void mxc_arch_reset_init(void __iomem *);
 extern void mxc_arch_reset_init_dt(void);
 extern int mx53_revision(void);
-extern int imx6q_revision(void);
 extern int mx53_display_revision(void);
 extern void imx_set_aips(void __iomem *);
 extern int mxc_device_init(void);
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c
index 3be0fa0e9796..f260aad9850b 100644
--- a/arch/arm/mach-imx/mach-imx6q.c
+++ b/arch/arm/mach-imx/mach-imx6q.c
@@ -38,16 +38,10 @@
 #include "cpuidle.h"
 #include "hardware.h"
 
-static u32 chip_revision;
-
-int imx6q_revision(void)
-{
-	return chip_revision;
-}
-
 static void __init imx6q_init_revision(void)
 {
 	u32 rev = imx_anatop_get_digprog();
+	u32 chip_revision;
 
 	switch (rev & 0xff) {
 	case 0:
@@ -64,6 +58,7 @@ static void __init imx6q_init_revision(void)
 	}
 
 	mxc_set_cpu_type(rev >> 16 & 0xff);
+	imx_set_soc_revision(chip_revision);
 }
 
 static void imx6q_restart(enum reboot_mode mode, const char *cmd)
@@ -191,7 +186,7 @@ static void __init imx6q_1588_init(void)
 static void __init imx6q_init_machine(void)
 {
 	imx_print_silicon_rev(cpu_is_imx6dl() ? "i.MX6DL" : "i.MX6Q",
-			      imx6q_revision());
+			      imx_get_soc_revision());
 
 	imx6q_enet_phy_init();
 
@@ -270,7 +265,7 @@ static void __init imx6q_init_late(void)
 	 * WAIT mode is broken on TO 1.0 and 1.1, so there is no point
 	 * to run cpuidle on them.
 	 */
-	if (imx6q_revision() > IMX_CHIP_REVISION_1_1)
+	if (imx_get_soc_revision() > IMX_CHIP_REVISION_1_1)
 		imx6q_cpuidle_init();
 
 	if (IS_ENABLED(CONFIG_ARM_IMX6Q_CPUFREQ)) {
-- 
cgit 


From f1c6f314727c7595e249c7da3933ba2bc6219e58 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Tue, 13 Aug 2013 14:59:43 +0800
Subject: ARM: imx: add a common function to initialize revision from anatop

The patch creates a common function imx_init_revision_from_anatop() by
merging imx6q_init_revision() and imx_anatop_get_digprog(), so that any
SoC that encodes revision info in anatop can use it to initialize
revision.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/anatop.c     | 27 +++++++++++++++++++++------
 arch/arm/mach-imx/common.h     |  2 +-
 arch/arm/mach-imx/mach-imx6q.c | 25 +------------------------
 3 files changed, 23 insertions(+), 31 deletions(-)

diff --git a/arch/arm/mach-imx/anatop.c b/arch/arm/mach-imx/anatop.c
index ad3b755abb78..b2d600f14937 100644
--- a/arch/arm/mach-imx/anatop.c
+++ b/arch/arm/mach-imx/anatop.c
@@ -16,6 +16,7 @@
 #include <linux/mfd/syscon.h>
 #include <linux/regmap.h>
 #include "common.h"
+#include "hardware.h"
 
 #define REG_SET		0x4
 #define REG_CLR		0x8
@@ -76,21 +77,35 @@ static void imx_anatop_usb_chrg_detect_disable(void)
 		BM_ANADIG_USB_CHRG_DETECT_CHK_CHRG_B);
 }
 
-u32 imx_anatop_get_digprog(void)
+void __init imx_init_revision_from_anatop(void)
 {
 	struct device_node *np;
 	void __iomem *anatop_base;
-	static u32 digprog;
-
-	if (digprog)
-		return digprog;
+	unsigned int revision;
+	u32 digprog;
 
 	np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-anatop");
 	anatop_base = of_iomap(np, 0);
 	WARN_ON(!anatop_base);
 	digprog = readl_relaxed(anatop_base + ANADIG_DIGPROG);
+	iounmap(anatop_base);
+
+	switch (digprog & 0xff) {
+	case 0:
+		revision = IMX_CHIP_REVISION_1_0;
+		break;
+	case 1:
+		revision = IMX_CHIP_REVISION_1_1;
+		break;
+	case 2:
+		revision = IMX_CHIP_REVISION_1_2;
+		break;
+	default:
+		revision = IMX_CHIP_REVISION_UNKNOWN;
+	}
 
-	return digprog;
+	mxc_set_cpu_type(digprog >> 16 & 0xff);
+	imx_set_soc_revision(revision);
 }
 
 void __init imx_anatop_init(void)
diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index cac12870efb3..d0191152807d 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -78,6 +78,7 @@ extern void imx_set_aips(void __iomem *);
 extern int mxc_device_init(void);
 void imx_set_soc_revision(unsigned int rev);
 unsigned int imx_get_soc_revision(void);
+void imx_init_revision_from_anatop(void);
 
 enum mxc_cpu_pwr_mode {
 	WAIT_CLOCKED,		/* wfi only */
@@ -134,7 +135,6 @@ extern void imx_gpc_restore_all(void);
 extern void imx_anatop_init(void);
 extern void imx_anatop_pre_suspend(void);
 extern void imx_anatop_post_resume(void);
-extern u32 imx_anatop_get_digprog(void);
 extern int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode);
 extern void imx6q_set_chicken_bit(void);
 
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c
index f260aad9850b..1bdd0be429b9 100644
--- a/arch/arm/mach-imx/mach-imx6q.c
+++ b/arch/arm/mach-imx/mach-imx6q.c
@@ -38,29 +38,6 @@
 #include "cpuidle.h"
 #include "hardware.h"
 
-static void __init imx6q_init_revision(void)
-{
-	u32 rev = imx_anatop_get_digprog();
-	u32 chip_revision;
-
-	switch (rev & 0xff) {
-	case 0:
-		chip_revision = IMX_CHIP_REVISION_1_0;
-		break;
-	case 1:
-		chip_revision = IMX_CHIP_REVISION_1_1;
-		break;
-	case 2:
-		chip_revision = IMX_CHIP_REVISION_1_2;
-		break;
-	default:
-		chip_revision = IMX_CHIP_REVISION_UNKNOWN;
-	}
-
-	mxc_set_cpu_type(rev >> 16 & 0xff);
-	imx_set_soc_revision(chip_revision);
-}
-
 static void imx6q_restart(enum reboot_mode mode, const char *cmd)
 {
 	struct device_node *np;
@@ -282,7 +259,7 @@ static void __init imx6q_map_io(void)
 
 static void __init imx6q_init_irq(void)
 {
-	imx6q_init_revision();
+	imx_init_revision_from_anatop();
 	imx_init_l2cache();
 	imx_src_init();
 	imx_gpc_init();
-- 
cgit 


From d8ce823fb34e6b50b1d9cb804c1067546eab9cee Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Tue, 13 Aug 2013 16:54:05 +0800
Subject: ARM: imx: use imx_init_revision_from_anatop() on imx6sl

Add imx6sl support into imx_init_revision_from_anatop(), so that it can
be used to initialize cpu type and revision on imx6sl.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6sl.dtsi   | 4 +++-
 arch/arm/mach-imx/anatop.c      | 6 +++++-
 arch/arm/mach-imx/mach-imx6sl.c | 1 +
 3 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
index c46651e4d966..177d9e791a01 100644
--- a/arch/arm/boot/dts/imx6sl.dtsi
+++ b/arch/arm/boot/dts/imx6sl.dtsi
@@ -380,7 +380,9 @@
 			};
 
 			anatop: anatop@020c8000 {
-				compatible = "fsl,imx6sl-anatop", "syscon", "simple-bus";
+				compatible = "fsl,imx6sl-anatop",
+					     "fsl,imx6q-anatop",
+					     "syscon", "simple-bus";
 				reg = <0x020c8000 0x1000>;
 				interrupts = <0 49 0x04 0 54 0x04 0 127 0x04>;
 
diff --git a/arch/arm/mach-imx/anatop.c b/arch/arm/mach-imx/anatop.c
index b2d600f14937..4a40bbb46183 100644
--- a/arch/arm/mach-imx/anatop.c
+++ b/arch/arm/mach-imx/anatop.c
@@ -27,6 +27,7 @@
 #define ANADIG_USB1_CHRG_DETECT	0x1b0
 #define ANADIG_USB2_CHRG_DETECT	0x210
 #define ANADIG_DIGPROG		0x260
+#define ANADIG_DIGPROG_IMX6SL	0x280
 
 #define BM_ANADIG_REG_2P5_ENABLE_WEAK_LINREG	0x40000
 #define BM_ANADIG_REG_CORE_FET_ODRIVE		0x20000000
@@ -83,11 +84,14 @@ void __init imx_init_revision_from_anatop(void)
 	void __iomem *anatop_base;
 	unsigned int revision;
 	u32 digprog;
+	u16 offset = ANADIG_DIGPROG;
 
 	np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-anatop");
 	anatop_base = of_iomap(np, 0);
 	WARN_ON(!anatop_base);
-	digprog = readl_relaxed(anatop_base + ANADIG_DIGPROG);
+	if (of_device_is_compatible(np, "fsl,imx6sl-anatop"))
+		offset = ANADIG_DIGPROG_IMX6SL;
+	digprog = readl_relaxed(anatop_base + offset);
 	iounmap(anatop_base);
 
 	switch (digprog & 0xff) {
diff --git a/arch/arm/mach-imx/mach-imx6sl.c b/arch/arm/mach-imx/mach-imx6sl.c
index 21cde21daf9b..4ce9ae58ed0c 100644
--- a/arch/arm/mach-imx/mach-imx6sl.c
+++ b/arch/arm/mach-imx/mach-imx6sl.c
@@ -45,6 +45,7 @@ static void __init imx6sl_init_machine(void)
 
 static void __init imx6sl_init_irq(void)
 {
+	imx_init_revision_from_anatop();
 	imx_init_l2cache();
 	imx_src_init();
 	imx_gpc_init();
-- 
cgit 


From a28875462bd493fc1bb041c21f811b4a0577a497 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Tue, 13 Aug 2013 16:59:28 +0800
Subject: ARM: imx6: report soc info via soc device

The patch enables soc bus infrastructure and adds a function
imx_soc_device_init() to report soc info via soc device interface for
imx6qdl and imx6sl.  With the support, user space can get soc related
info by looking at sysfs like below.

  $ cat /sys/devices/soc0/machine
  Freescale i.MX6 Quad SABRE Smart Device Board
  $ cat /sys/devices/soc0/family
  Freescale i.MX
  $ cat /sys/devices/soc0/soc_id
  i.MX6Q
  $ cat /sys/devices/soc0/revision
  1.2

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/Kconfig       |  1 +
 arch/arm/mach-imx/common.h      |  1 +
 arch/arm/mach-imx/cpu.c         | 81 +++++++++++++++++++++++++++++++++++++++++
 arch/arm/mach-imx/mach-imx6q.c  |  8 +++-
 arch/arm/mach-imx/mach-imx6sl.c |  8 +++-
 arch/arm/mach-imx/mxc.h         |  1 +
 6 files changed, 98 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 9f67338ac2ee..e0179158aec6 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -11,6 +11,7 @@ config ARCH_MXC
 	select GENERIC_IRQ_CHIP
 	select MIGHT_HAVE_CACHE_L2X0 if ARCH_MULTI_V6_V7
 	select MULTI_IRQ_HANDLER
+	select SOC_BUS
 	select SPARSE_IRQ
 	select USE_OF
 	help
diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index d0191152807d..f9d01142a4f6 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -79,6 +79,7 @@ extern int mxc_device_init(void);
 void imx_set_soc_revision(unsigned int rev);
 unsigned int imx_get_soc_revision(void);
 void imx_init_revision_from_anatop(void);
+struct device *imx_soc_device_init(void);
 
 enum mxc_cpu_pwr_mode {
 	WAIT_CLOCKED,		/* wfi only */
diff --git a/arch/arm/mach-imx/cpu.c b/arch/arm/mach-imx/cpu.c
index 51f6c51ca878..fae2c9a78744 100644
--- a/arch/arm/mach-imx/cpu.c
+++ b/arch/arm/mach-imx/cpu.c
@@ -1,6 +1,9 @@
 
 #include <linux/module.h>
 #include <linux/io.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/sys_soc.h>
 
 #include "hardware.h"
 #include "common.h"
@@ -56,3 +59,81 @@ void __init imx_set_aips(void __iomem *base)
 	reg = __raw_readl(base + 0x50) & 0x00FFFFFF;
 	__raw_writel(reg, base + 0x50);
 }
+
+struct device * __init imx_soc_device_init(void)
+{
+	struct soc_device_attribute *soc_dev_attr;
+	struct soc_device *soc_dev;
+	struct device_node *root;
+	const char *soc_id;
+	int ret;
+
+	soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
+	if (!soc_dev_attr)
+		return NULL;
+
+	soc_dev_attr->family = "Freescale i.MX";
+
+	root = of_find_node_by_path("/");
+	ret = of_property_read_string(root, "model", &soc_dev_attr->machine);
+	of_node_put(root);
+	if (ret)
+		goto free_soc;
+
+	switch (__mxc_cpu_type) {
+	case MXC_CPU_MX1:
+		soc_id = "i.MX1";
+		break;
+	case MXC_CPU_MX21:
+		soc_id = "i.MX21";
+		break;
+	case MXC_CPU_MX25:
+		soc_id = "i.MX25";
+		break;
+	case MXC_CPU_MX27:
+		soc_id = "i.MX27";
+		break;
+	case MXC_CPU_MX31:
+		soc_id = "i.MX31";
+		break;
+	case MXC_CPU_MX35:
+		soc_id = "i.MX35";
+		break;
+	case MXC_CPU_MX51:
+		soc_id = "i.MX51";
+		break;
+	case MXC_CPU_MX53:
+		soc_id = "i.MX53";
+		break;
+	case MXC_CPU_IMX6SL:
+		soc_id = "i.MX6SL";
+		break;
+	case MXC_CPU_IMX6DL:
+		soc_id = "i.MX6DL";
+		break;
+	case MXC_CPU_IMX6Q:
+		soc_id = "i.MX6Q";
+		break;
+	default:
+		soc_id = "Unknown";
+	}
+	soc_dev_attr->soc_id = soc_id;
+
+	soc_dev_attr->revision = kasprintf(GFP_KERNEL, "%d.%d",
+					   (imx_soc_revision >> 4) & 0xf,
+					   imx_soc_revision & 0xf);
+	if (!soc_dev_attr->revision)
+		goto free_soc;
+
+	soc_dev = soc_device_register(soc_dev_attr);
+	if (IS_ERR(soc_dev))
+		goto free_rev;
+
+	return soc_device_to_device(soc_dev);
+
+free_rev:
+	kfree(soc_dev_attr->revision);
+free_soc:
+	kfree(soc_dev_attr);
+	return NULL;
+}
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c
index 1bdd0be429b9..049e36edc143 100644
--- a/arch/arm/mach-imx/mach-imx6q.c
+++ b/arch/arm/mach-imx/mach-imx6q.c
@@ -162,12 +162,18 @@ static void __init imx6q_1588_init(void)
 
 static void __init imx6q_init_machine(void)
 {
+	struct device *parent;
+
 	imx_print_silicon_rev(cpu_is_imx6dl() ? "i.MX6DL" : "i.MX6Q",
 			      imx_get_soc_revision());
 
+	parent = imx_soc_device_init();
+	if (parent == NULL)
+		pr_warn("failed to initialize soc device\n");
+
 	imx6q_enet_phy_init();
 
-	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+	of_platform_populate(NULL, of_default_bus_match_table, NULL, parent);
 
 	imx_anatop_init();
 	imx6q_pm_init();
diff --git a/arch/arm/mach-imx/mach-imx6sl.c b/arch/arm/mach-imx/mach-imx6sl.c
index 4ce9ae58ed0c..f01aaabd3254 100644
--- a/arch/arm/mach-imx/mach-imx6sl.c
+++ b/arch/arm/mach-imx/mach-imx6sl.c
@@ -36,9 +36,15 @@ static void __init imx6sl_fec_init(void)
 
 static void __init imx6sl_init_machine(void)
 {
+	struct device *parent;
+
 	mxc_arch_reset_init_dt();
 
-	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+	parent = imx_soc_device_init();
+	if (parent == NULL)
+		pr_warn("failed to initialize soc device\n");
+
+	of_platform_populate(NULL, of_default_bus_match_table, NULL, parent);
 
 	imx6sl_fec_init();
 }
diff --git a/arch/arm/mach-imx/mxc.h b/arch/arm/mach-imx/mxc.h
index 8629e5be7ecd..99e03ea9bf79 100644
--- a/arch/arm/mach-imx/mxc.h
+++ b/arch/arm/mach-imx/mxc.h
@@ -34,6 +34,7 @@
 #define MXC_CPU_MX35		35
 #define MXC_CPU_MX51		51
 #define MXC_CPU_MX53		53
+#define MXC_CPU_IMX6SL		0x60
 #define MXC_CPU_IMX6DL		0x61
 #define MXC_CPU_IMX6Q		0x63
 
-- 
cgit 


From 7655fe53f4d39379d3f619e1ed49c79aba4d319b Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Wed, 25 Sep 2013 21:30:42 +0800
Subject: ARM: imx: remove stale mx53_display_revision() declaration

The mx53_display_revision() declaration in common.h is stale and used
nowhere, so remove it.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/common.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index f9d01142a4f6..d04ed7e8d8d3 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -73,7 +73,6 @@ extern void mxc_restart(enum reboot_mode, const char *);
 extern void mxc_arch_reset_init(void __iomem *);
 extern void mxc_arch_reset_init_dt(void);
 extern int mx53_revision(void);
-extern int mx53_display_revision(void);
 extern void imx_set_aips(void __iomem *);
 extern int mxc_device_init(void);
 void imx_set_soc_revision(unsigned int rev);
-- 
cgit 


From bf22172158cd6dcc5be6dc286ff5c33794dd0ae8 Mon Sep 17 00:00:00 2001
From: Sean Cross <xobs@kosagi.com>
Date: Mon, 16 Sep 2013 08:20:52 +0000
Subject: ARM: imx: Add LVDS general-purpose clocks to i.MX6Q

The i.MX6 has two general-purpose LVDS clocks that can be driven
from a variety of sources.  This patch adds a mux and a gate for
both of these clocks.

Signed-off-by: Sean Cross <xobs@kosagi.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 .../devicetree/bindings/clock/imx6q-clock.txt        |  4 ++++
 arch/arm/mach-imx/clk-imx6q.c                        | 20 +++++++++++++++++++-
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/clock/imx6q-clock.txt b/Documentation/devicetree/bindings/clock/imx6q-clock.txt
index e8b1baae9ae4..6aab72bf67ea 100644
--- a/Documentation/devicetree/bindings/clock/imx6q-clock.txt
+++ b/Documentation/devicetree/bindings/clock/imx6q-clock.txt
@@ -216,6 +216,10 @@ clocks and IDs.
 	cko      		201
 	vdoa      		202
 	pll4_audio_div		203
+	lvds1_sel		204
+	lvds2_sel		205
+	lvds1_gate		206
+	lvds2_gate		207
 
 Examples:
 
diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
index c68156621cc8..e8e5bad82b30 100644
--- a/arch/arm/mach-imx/clk-imx6q.c
+++ b/arch/arm/mach-imx/clk-imx6q.c
@@ -217,6 +217,11 @@ static const char *cko2_sels[] = {
 	"uart_serial", "spdif", "asrc", "hsi_tx",
 };
 static const char *cko_sels[] = { "cko1", "cko2", };
+static const char *lvds_sels[] = {
+	"dummy", "dummy", "dummy", "dummy", "dummy", "dummy",
+	"pll4_audio", "pll5_video", "pll8_mlb", "enet_ref",
+	"pcie_ref", "sata_ref",
+};
 
 enum mx6q_clks {
 	dummy, ckil, ckih, osc, pll2_pfd0_352m, pll2_pfd1_594m, pll2_pfd2_396m,
@@ -251,7 +256,8 @@ enum mx6q_clks {
 	ssi2_ipg, ssi3_ipg, rom, usbphy1, usbphy2, ldb_di0_div_3_5, ldb_di1_div_3_5,
 	sata_ref, sata_ref_100m, pcie_ref, pcie_ref_125m, enet_ref, usbphy1_gate,
 	usbphy2_gate, pll4_post_div, pll5_post_div, pll5_video_div, eim_slow,
-	spdif, cko2_sel, cko2_podf, cko2, cko, vdoa, pll4_audio_div, clk_max
+	spdif, cko2_sel, cko2_podf, cko2, cko, vdoa, pll4_audio_div,
+	lvds1_sel, lvds2_sel, lvds1_gate, lvds2_gate, clk_max
 };
 
 static struct clk *clk[clk_max];
@@ -342,6 +348,18 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
 			base + 0xe0, 0, 2, 0, clk_enet_ref_table,
 			&imx_ccm_lock);
 
+	clk[lvds1_sel] = imx_clk_mux("lvds1_sel", base + 0x160, 0, 5, lvds_sels, ARRAY_SIZE(lvds_sels));
+	clk[lvds2_sel] = imx_clk_mux("lvds2_sel", base + 0x160, 5, 5, lvds_sels, ARRAY_SIZE(lvds_sels));
+
+	/*
+	 * lvds1_gate and lvds2_gate are pseudo-gates.  Both can be
+	 * independently configured as clock inputs or outputs.  We treat
+	 * the "output_enable" bit as a gate, even though it's really just
+	 * enabling clock output.
+	 */
+	clk[lvds1_gate] = imx_clk_gate("lvds1_gate", "dummy", base + 0x160, 10);
+	clk[lvds2_gate] = imx_clk_gate("lvds2_gate", "dummy", base + 0x160, 11);
+
 	/*                                name              parent_name        reg       idx */
 	clk[pll2_pfd0_352m] = imx_clk_pfd("pll2_pfd0_352m", "pll2_bus",     base + 0x100, 0);
 	clk[pll2_pfd1_594m] = imx_clk_pfd("pll2_pfd1_594m", "pll2_bus",     base + 0x100, 1);
-- 
cgit 


From 74b8031307c5d33d36742c26dd0921991bd5a255 Mon Sep 17 00:00:00 2001
From: Sean Cross <xobs@kosagi.com>
Date: Thu, 26 Sep 2013 10:45:35 +0800
Subject: ARM: imx6q: clock and Kconfig update for PCIe support

Update imx6q clock initialization and Kconfig for PCIe support.

Signed-off-by: Sean Cross <xobs@kosagi.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/Kconfig     | 2 ++
 arch/arm/mach-imx/clk-imx6q.c | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index e0179158aec6..270f78667dc6 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -802,6 +802,8 @@ config SOC_IMX6Q
 	select HAVE_IMX_SRC
 	select HAVE_SMP
 	select MFD_SYSCON
+	select MIGHT_HAVE_PCI
+	select PCI_DOMAINS if PCI
 	select PINCTRL
 	select PINCTRL_IMX6Q
 	select PL310_ERRATA_588369 if CACHE_PL310
diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
index e8e5bad82b30..07bc0d8b573f 100644
--- a/arch/arm/mach-imx/clk-imx6q.c
+++ b/arch/arm/mach-imx/clk-imx6q.c
@@ -623,6 +623,10 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
 	if (ret)
 		pr_warn("failed to set up CLKO: %d\n", ret);
 
+	/* All existing boards with PCIe use LVDS1 */
+	if (IS_ENABLED(CONFIG_PCI_IMX6))
+		clk_set_parent(clk[lvds1_sel], clk[sata_ref]);
+
 	/* Set initial power mode */
 	imx6q_set_lpm(WAIT_CLOCKED);
 
-- 
cgit 


From e39c3368aa182066b30d45e852956b6e9c915f53 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Sat, 28 Sep 2013 17:27:06 -0300
Subject: ARM: imx_v6_v7_defconfig: Add SPDIF support

Generated by doing:

make imx_v6_v7_defconfig
Manually selected the IMX_SPDIF driver
make savedefconfig
cp defconfig arch/arm/configs/imx_v6_v7_defconfig

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/configs/imx_v6_v7_defconfig | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig
index 5d488c24b132..d513294683c9 100644
--- a/arch/arm/configs/imx_v6_v7_defconfig
+++ b/arch/arm/configs/imx_v6_v7_defconfig
@@ -132,7 +132,6 @@ CONFIG_TOUCHSCREEN_MC13783=y
 CONFIG_INPUT_MISC=y
 CONFIG_INPUT_MMA8450=y
 CONFIG_SERIO_SERPORT=m
-CONFIG_VT_HW_CONSOLE_BINDING=y
 # CONFIG_LEGACY_PTYS is not set
 # CONFIG_DEVKMEM is not set
 CONFIG_SERIAL_IMX=y
@@ -188,6 +187,7 @@ CONFIG_SND_SOC_PHYCORE_AC97=y
 CONFIG_SND_SOC_EUKREA_TLV320=y
 CONFIG_SND_SOC_IMX_WM8962=y
 CONFIG_SND_SOC_IMX_SGTL5000=y
+CONFIG_SND_SOC_IMX_SPDIF=y
 CONFIG_SND_SOC_IMX_MC13783=y
 CONFIG_USB=y
 CONFIG_USB_EHCI_HCD=y
@@ -195,7 +195,6 @@ CONFIG_USB_EHCI_MXC=y
 CONFIG_USB_STORAGE=y
 CONFIG_USB_CHIPIDEA=y
 CONFIG_USB_CHIPIDEA_HOST=y
-CONFIG_USB_PHY=y
 CONFIG_NOP_USB_XCEIV=y
 CONFIG_USB_MXS_PHY=y
 CONFIG_MMC=y
-- 
cgit 


From 15233e1db2b3adc955b9d8812e6849cfbd5bb529 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Sat, 28 Sep 2013 17:27:07 -0300
Subject: ARM: imx_v6_v7_defconfig: Add CHIPIDEA_UDC support

Generated by doing:

make imx_v6_v7_defconfig
Manually selected the CHIPIDEA_UDC driver
make savedefconfig
cp defconfig arch/arm/configs/imx_v6_v7_defconfig

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/configs/imx_v6_v7_defconfig | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig
index d513294683c9..137fdb05eaa1 100644
--- a/arch/arm/configs/imx_v6_v7_defconfig
+++ b/arch/arm/configs/imx_v6_v7_defconfig
@@ -194,9 +194,13 @@ CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_MXC=y
 CONFIG_USB_STORAGE=y
 CONFIG_USB_CHIPIDEA=y
+CONFIG_USB_CHIPIDEA_UDC=y
 CONFIG_USB_CHIPIDEA_HOST=y
 CONFIG_NOP_USB_XCEIV=y
 CONFIG_USB_MXS_PHY=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_ETH=m
+CONFIG_USB_MASS_STORAGE=m
 CONFIG_MMC=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_PLTFM=y
@@ -245,7 +249,6 @@ CONFIG_UDF_FS=m
 CONFIG_MSDOS_FS=m
 CONFIG_VFAT_FS=y
 CONFIG_TMPFS=y
-CONFIG_CONFIGFS_FS=m
 CONFIG_JFFS2_FS=y
 CONFIG_UBIFS_FS=y
 CONFIG_NFS_FS=y
-- 
cgit 


From 1ddd35be8b71855329c4c7e8910b00fd2bc0f6dc Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Mon, 30 Sep 2013 14:04:51 +0200
Subject: ARM: imx: Include linux/err.h

The IS_ERR() macro is defined in the linux/err.h header file, so include
it explicitly.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/cpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-imx/cpu.c b/arch/arm/mach-imx/cpu.c
index fae2c9a78744..ba3b498a67ec 100644
--- a/arch/arm/mach-imx/cpu.c
+++ b/arch/arm/mach-imx/cpu.c
@@ -1,4 +1,4 @@
-
+#include <linux/err.h>
 #include <linux/module.h>
 #include <linux/io.h>
 #include <linux/of.h>
-- 
cgit 


From a4de29044d1887543dd35a75ac666eac431e8765 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 30 Sep 2013 11:22:30 -0300
Subject: ARM: mxs_defconfig: Add CHIPIDEA_UDC support

Generated by doing:

make mxs_defconfig
Manually selected the CHIPIDEA_UDC driver
make savedefconfig
cp defconfig arch/arm/configs/mxs_defconfig

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/configs/mxs_defconfig | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm/configs/mxs_defconfig b/arch/arm/configs/mxs_defconfig
index 4555c025629a..2d0c3695d5d0 100644
--- a/arch/arm/configs/mxs_defconfig
+++ b/arch/arm/configs/mxs_defconfig
@@ -76,7 +76,6 @@ CONFIG_INPUT_EVDEV=y
 CONFIG_INPUT_TOUCHSCREEN=y
 CONFIG_TOUCHSCREEN_TSC2007=m
 # CONFIG_SERIO is not set
-CONFIG_VT_HW_CONSOLE_BINDING=y
 CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
 # CONFIG_LEGACY_PTYS is not set
 # CONFIG_DEVKMEM is not set
@@ -115,9 +114,12 @@ CONFIG_USB=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_STORAGE=y
 CONFIG_USB_CHIPIDEA=y
+CONFIG_USB_CHIPIDEA_UDC=y
 CONFIG_USB_CHIPIDEA_HOST=y
-CONFIG_USB_PHY=y
 CONFIG_USB_MXS_PHY=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_ETH=m
+CONFIG_USB_MASS_STORAGE=m
 CONFIG_MMC=y
 CONFIG_MMC_UNSAFE_RESUME=y
 CONFIG_MMC_MXS=y
-- 
cgit 


From bfcc7bcef55dd9db82758f3ac755714a59db9529 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Tue, 1 Oct 2013 00:21:12 -0300
Subject: ARM: mach-imx: clk-imx51-imx53: Retrieve base address and irq from dt

As mx53 is a dt-only SoC, we should retrieve the gpt base address and irq
from the device tree, instead of using the old MX53_IO_ADDRESS method.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/clk-imx51-imx53.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-imx/clk-imx51-imx53.c b/arch/arm/mach-imx/clk-imx51-imx53.c
index ceaac9cd7b42..ce37af26ff8c 100644
--- a/arch/arm/mach-imx/clk-imx51-imx53.c
+++ b/arch/arm/mach-imx/clk-imx51-imx53.c
@@ -14,6 +14,9 @@
 #include <linux/clk-provider.h>
 #include <linux/of.h>
 #include <linux/err.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 
 #include "crm-regs-imx5.h"
 #include "clk.h"
@@ -472,8 +475,9 @@ CLK_OF_DECLARE(imx51_ccm, "fsl,imx51-ccm", mx51_clocks_init_dt);
 
 static void __init mx53_clocks_init(struct device_node *np)
 {
-	int i;
+	int i, irq;
 	unsigned long r;
+	void __iomem *base;
 
 	clk[pll1_sw] = imx_clk_pllv2("pll1_sw", "osc", MX53_DPLL1_BASE);
 	clk[pll2_sw] = imx_clk_pllv2("pll2_sw", "osc", MX53_DPLL2_BASE);
@@ -559,14 +563,17 @@ static void __init mx53_clocks_init(struct device_node *np)
 	clk_set_rate(clk[esdhc_a_podf], 200000000);
 	clk_set_rate(clk[esdhc_b_podf], 200000000);
 
-	/* System timer */
-	mxc_timer_init(MX53_IO_ADDRESS(MX53_GPT1_BASE_ADDR), MX53_INT_GPT);
-
 	clk_prepare_enable(clk[iim_gate]);
 	imx_print_silicon_rev("i.MX53", mx53_revision());
 	clk_disable_unprepare(clk[iim_gate]);
 
 	r = clk_round_rate(clk[usboh3_per_gate], 54000000);
 	clk_set_rate(clk[usboh3_per_gate], r);
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,imx53-gpt");
+	base = of_iomap(np, 0);
+	WARN_ON(!base);
+	irq = irq_of_parse_and_map(np, 0);
+	mxc_timer_init(base, irq);
 }
 CLK_OF_DECLARE(imx53_ccm, "fsl,imx53-ccm", mx53_clocks_init);
-- 
cgit 


From 823b2fe25a96715ceed9f689869e702c4dd3907a Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Tue, 1 Oct 2013 00:21:13 -0300
Subject: ARM: mach-imx: mm-imx5: Retrieve tzic base address from dt

As mx53 is a dt-only SoC, we should retrieve the tzic base address from the
device tree, instead of using the old MX53_IO_ADDRESS method.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/mm-imx5.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-imx/mm-imx5.c b/arch/arm/mach-imx/mm-imx5.c
index eb3cce38c70d..2cafcf00000b 100644
--- a/arch/arm/mach-imx/mm-imx5.c
+++ b/arch/arm/mach-imx/mm-imx5.c
@@ -15,6 +15,7 @@
 #include <linux/init.h>
 #include <linux/clk.h>
 #include <linux/pinctrl/machine.h>
+#include <linux/of_address.h>
 
 #include <asm/mach/map.h>
 
@@ -100,7 +101,14 @@ void __init mx51_init_irq(void)
 
 void __init mx53_init_irq(void)
 {
-	tzic_init_irq(MX53_IO_ADDRESS(MX53_TZIC_BASE_ADDR));
+	struct device_node *np;
+	void __iomem *base;
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,imx53-tzic");
+	base = of_iomap(np, 0);
+	WARN_ON(!base);
+
+	tzic_init_irq(base);
 }
 
 static struct sdma_platform_data imx51_sdma_pdata __initdata = {
-- 
cgit 


From 6fc6c93eb6d07cb622c2ec2e956875c00ef47df3 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Tue, 1 Oct 2013 00:21:14 -0300
Subject: ARM: mach-imx: mm-imx5: Retrieve iomuxc base address from dt

As mx53 is a dt-only SoC, we should retrieve the iomuxc base address from the
device tree, instead of using the old MX53_IO_ADDRESS method.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/mm-imx5.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-imx/mm-imx5.c b/arch/arm/mach-imx/mm-imx5.c
index 2cafcf00000b..d1d52600f458 100644
--- a/arch/arm/mach-imx/mm-imx5.c
+++ b/arch/arm/mach-imx/mm-imx5.c
@@ -89,8 +89,15 @@ void __init imx51_init_early(void)
 
 void __init imx53_init_early(void)
 {
+	struct device_node *np;
+	void __iomem *base;
+
 	mxc_set_cpu_type(MXC_CPU_MX53);
-	mxc_iomux_v3_init(MX53_IO_ADDRESS(MX53_IOMUXC_BASE_ADDR));
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,imx53-iomuxc");
+	base = of_iomap(np, 0);
+	WARN_ON(!base);
+	mxc_iomux_v3_init(base);
 	imx_src_init();
 }
 
-- 
cgit 


From 87a84b69824d7fd63b20f3bc98d75c0238b8e7d0 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Sun, 6 Oct 2013 16:47:46 +0800
Subject: ARM: imx: replace imx6q_restart() with mxc_restart()

The imx6q_restart() works fine with normal reboot but will run into
problem with emergency reboot like sysrq-b.  In that case, of_iomap()
gets called from interrupt context and hence triggers the BUG_ON in
__get_vm_area_node().

Actually, since commit c1e31d1 (ARM: imx: create
mxc_arch_reset_init_dt() for DT boot), imx6q/dl should try to use
mxc_restart() by calling mxc_arch_reset_init_dt() beforehand, where
things like of_iomap() can be done.

The patch updates mxc_restart() a little bit to get it work for imx6q/dl
and kill imx6q_restart() completely.

Reported-by: Nathan Lynch <nathan_lynch@mentor.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/common.h     |  4 ++++
 arch/arm/mach-imx/mach-imx6q.c | 35 +++--------------------------------
 arch/arm/mach-imx/system.c     |  5 +++++
 3 files changed, 12 insertions(+), 32 deletions(-)

diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index d04ed7e8d8d3..2413bfbc42f9 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -126,7 +126,11 @@ static inline void imx_smp_prepare(void) {}
 static inline void imx_scu_standby_enable(void) {}
 #endif
 extern void imx_src_init(void);
+#ifdef CONFIG_HAVE_IMX_SRC
 extern void imx_src_prepare_restart(void);
+#else
+static inline void imx_src_prepare_restart(void) {}
+#endif
 extern void imx_gpc_init(void);
 extern void imx_gpc_pre_suspend(void);
 extern void imx_gpc_post_resume(void);
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c
index 049e36edc143..0f9f24116daa 100644
--- a/arch/arm/mach-imx/mach-imx6q.c
+++ b/arch/arm/mach-imx/mach-imx6q.c
@@ -13,7 +13,6 @@
 #include <linux/clk.h>
 #include <linux/clkdev.h>
 #include <linux/cpu.h>
-#include <linux/delay.h>
 #include <linux/export.h>
 #include <linux/init.h>
 #include <linux/io.h>
@@ -38,36 +37,6 @@
 #include "cpuidle.h"
 #include "hardware.h"
 
-static void imx6q_restart(enum reboot_mode mode, const char *cmd)
-{
-	struct device_node *np;
-	void __iomem *wdog_base;
-
-	np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-wdt");
-	wdog_base = of_iomap(np, 0);
-	if (!wdog_base)
-		goto soft;
-
-	imx_src_prepare_restart();
-
-	/* enable wdog */
-	writew_relaxed(1 << 2, wdog_base);
-	/* write twice to ensure the request will not get ignored */
-	writew_relaxed(1 << 2, wdog_base);
-
-	/* wait for reset to assert ... */
-	mdelay(500);
-
-	pr_err("Watchdog reset failed to assert reset\n");
-
-	/* delay to allow the serial port to show the message */
-	mdelay(50);
-
-soft:
-	/* we'll take a jump through zero as a poor second */
-	soft_restart(0);
-}
-
 /* For imx6q sabrelite board: set KSZ9021RN RGMII pad skew */
 static int ksz9021rn_phy_fixup(struct phy_device *phydev)
 {
@@ -167,6 +136,8 @@ static void __init imx6q_init_machine(void)
 	imx_print_silicon_rev(cpu_is_imx6dl() ? "i.MX6DL" : "i.MX6Q",
 			      imx_get_soc_revision());
 
+	mxc_arch_reset_init_dt();
+
 	parent = imx_soc_device_init();
 	if (parent == NULL)
 		pr_warn("failed to initialize soc device\n");
@@ -285,5 +256,5 @@ DT_MACHINE_START(IMX6Q, "Freescale i.MX6 Quad/DualLite (Device Tree)")
 	.init_machine	= imx6q_init_machine,
 	.init_late      = imx6q_init_late,
 	.dt_compat	= imx6q_dt_compat,
-	.restart	= imx6q_restart,
+	.restart	= mxc_restart,
 MACHINE_END
diff --git a/arch/arm/mach-imx/system.c b/arch/arm/mach-imx/system.c
index 80c177c36c5f..e6edcd38b282 100644
--- a/arch/arm/mach-imx/system.c
+++ b/arch/arm/mach-imx/system.c
@@ -42,6 +42,9 @@ void mxc_restart(enum reboot_mode mode, const char *cmd)
 {
 	unsigned int wcr_enable;
 
+	if (cpu_is_imx6q() || cpu_is_imx6dl())
+		imx_src_prepare_restart();
+
 	if (wdog_clk)
 		clk_enable(wdog_clk);
 
@@ -52,6 +55,8 @@ void mxc_restart(enum reboot_mode mode, const char *cmd)
 
 	/* Assert SRS signal */
 	__raw_writew(wcr_enable, wdog_base);
+	/* write twice to ensure the request will not get ignored */
+	__raw_writew(wcr_enable, wdog_base);
 
 	/* wait for reset to assert... */
 	mdelay(500);
-- 
cgit 


From a0fb706e11160e23c01136e9b603954be490e9ab Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Wed, 9 Oct 2013 00:10:39 -0300
Subject: ARM: mxs_defconfig: Turn off CONFIG_DEBUG_GPIO

Having CONFIG_DEBUG_GPIO=y leads to several debug messages polluting kernel log:

[    0.580325] of_get_named_gpio_flags: can't parse gpios property of node '/regulators/3p3v[0]'
[    0.581185] 3P3V: 3300 mV
[    0.584827] of_get_named_gpio_flags exited with status 124
[    0.585852] vddio-sd0: 3300 mV
[    0.590023] of_get_named_gpio_flags exited with status 79
[    0.590770] fec-3v3: 3300 mV
[    0.594805] of_get_named_gpio_flags exited with status 105
[    0.595491] usb0_vbus: 5000 mV
[    0.599687] of_get_named_gpio_flags exited with status 104
[    0.600380] usb1_vbus: 5000 mV
[    0.604463] of_get_named_gpio_flags exited with status 126
[    0.605153] lcd-3v3: 3300 mV
[    0.608970] of_get_named_gpio_flags exited with status 77

Turn this option off, as these messages are not really useful for normal usage.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/configs/mxs_defconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm/configs/mxs_defconfig b/arch/arm/configs/mxs_defconfig
index 2d0c3695d5d0..6150108e15de 100644
--- a/arch/arm/configs/mxs_defconfig
+++ b/arch/arm/configs/mxs_defconfig
@@ -90,7 +90,6 @@ CONFIG_I2C_MXS=y
 CONFIG_SPI=y
 CONFIG_SPI_GPIO=m
 CONFIG_SPI_MXS=y
-CONFIG_DEBUG_GPIO=y
 CONFIG_GPIO_SYSFS=y
 # CONFIG_HWMON is not set
 CONFIG_WATCHDOG=y
-- 
cgit 


From 94425a1916dfef0d1511bfb75d305a7aca1c0102 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Wed, 9 Oct 2013 18:02:03 -0300
Subject: ARM: imx_v6_v7_defconfig: Enable LEDS_GPIO related options

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/configs/imx_v6_v7_defconfig | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig
index 137fdb05eaa1..7e4b17618078 100644
--- a/arch/arm/configs/imx_v6_v7_defconfig
+++ b/arch/arm/configs/imx_v6_v7_defconfig
@@ -207,6 +207,13 @@ CONFIG_MMC_SDHCI_PLTFM=y
 CONFIG_MMC_SDHCI_ESDHC_IMX=y
 CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_TIMER=y
+CONFIG_LEDS_TRIGGER_ONESHOT=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_LEDS_TRIGGER_BACKLIGHT=y
+CONFIG_LEDS_TRIGGER_GPIO=y
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_INTF_DEV_UIE_EMUL=y
 CONFIG_RTC_DRV_MC13XXX=y
-- 
cgit 


From 85920f3960fbc9e8f63b61ac13cb4d3d44c56a17 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Wed, 9 Oct 2013 20:40:27 -0300
Subject: ARM: imx_v6_v7_defconfig: Select CONFIG_PROVE_LOCKING

This is very useful for detecting 'circular locking dependency' issues.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/configs/imx_v6_v7_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/imx_v6_v7_defconfig b/arch/arm/configs/imx_v6_v7_defconfig
index 7e4b17618078..8d0c5a018ed7 100644
--- a/arch/arm/configs/imx_v6_v7_defconfig
+++ b/arch/arm/configs/imx_v6_v7_defconfig
@@ -270,6 +270,7 @@ CONFIG_NLS_ISO8859_15=m
 CONFIG_NLS_UTF8=y
 CONFIG_MAGIC_SYSRQ=y
 # CONFIG_SCHED_DEBUG is not set
+CONFIG_PROVE_LOCKING=y
 # CONFIG_DEBUG_BUGVERBOSE is not set
 # CONFIG_FTRACE is not set
 # CONFIG_ARM_UNWIND is not set
-- 
cgit 


From fcd75f921dfa21a745869090c512ce4c6f2f0477 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Wed, 9 Oct 2013 15:29:14 +0800
Subject: ARM: imx: do not return from imx_cpu_die() call

When imx_cpu_die() is being called, the cpu should never return from the
call but just in WFI and wait for hardware to take it down.  So let's
do cpu_do_idle() repeatly in the call.  Doing this help improve the
relibility of hotplug operation.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/hotplug.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-imx/hotplug.c b/arch/arm/mach-imx/hotplug.c
index 3daf1ed90579..b35e99cc5e5b 100644
--- a/arch/arm/mach-imx/hotplug.c
+++ b/arch/arm/mach-imx/hotplug.c
@@ -52,7 +52,9 @@ void imx_cpu_die(unsigned int cpu)
 	 * the register being cleared to kill the cpu.
 	 */
 	imx_set_cpu_arg(cpu, ~0);
-	cpu_do_idle();
+
+	while (1)
+		cpu_do_idle();
 }
 
 int imx_cpu_kill(unsigned int cpu)
-- 
cgit 


From 6050d181a4fd4abb745506a6e565d55f1f9df964 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Wed, 9 Oct 2013 15:54:31 +0800
Subject: ARM: imx: reset core along with enable/disable operation

From hotplug stress test result, resetting core during enable/disable
operation can improve cpu hotplug stability.  So let's set
SRC reset bit in imx_enable_cpu() for the core when its enable bit is
accessed.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/src.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-imx/src.c b/arch/arm/mach-imx/src.c
index 10a6b1a8c5ac..4754373e7e7d 100644
--- a/arch/arm/mach-imx/src.c
+++ b/arch/arm/mach-imx/src.c
@@ -91,6 +91,7 @@ void imx_enable_cpu(int cpu, bool enable)
 	spin_lock(&scr_lock);
 	val = readl_relaxed(src_base + SRC_SCR);
 	val = enable ? val | mask : val & ~mask;
+	val |= 1 << (BP_SRC_SCR_CORE1_RST + cpu - 1);
 	writel_relaxed(val, src_base + SRC_SCR);
 	spin_unlock(&scr_lock);
 }
-- 
cgit 


From 803648db201f6c5f45e74a646f8f17bdeeb7b7e6 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Wed, 16 Oct 2013 21:05:35 +0800
Subject: ARM: imx: drop extern with function prototypes in common.h

Since commit 70dc8a4 (checkpatch: warn when using extern with function
prototypes in .h files), we will get checkpatch warning when updating
common.h following the existing convention which has extern for function
prototypes.

Let's change the convention to not use extern with function prototypes
in this header.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/common.h | 170 ++++++++++++++++++++++-----------------------
 1 file changed, 85 insertions(+), 85 deletions(-)

diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index 2413bfbc42f9..ddcbd90b4edf 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -18,63 +18,63 @@ struct pt_regs;
 struct clk;
 enum mxc_cpu_pwr_mode;
 
-extern void mx1_map_io(void);
-extern void mx21_map_io(void);
-extern void mx25_map_io(void);
-extern void mx27_map_io(void);
-extern void mx31_map_io(void);
-extern void mx35_map_io(void);
-extern void mx51_map_io(void);
-extern void mx53_map_io(void);
-extern void imx1_init_early(void);
-extern void imx21_init_early(void);
-extern void imx25_init_early(void);
-extern void imx27_init_early(void);
-extern void imx31_init_early(void);
-extern void imx35_init_early(void);
-extern void imx51_init_early(void);
-extern void imx53_init_early(void);
-extern void mxc_init_irq(void __iomem *);
-extern void tzic_init_irq(void __iomem *);
-extern void mx1_init_irq(void);
-extern void mx21_init_irq(void);
-extern void mx25_init_irq(void);
-extern void mx27_init_irq(void);
-extern void mx31_init_irq(void);
-extern void mx35_init_irq(void);
-extern void mx51_init_irq(void);
-extern void mx53_init_irq(void);
-extern void imx1_soc_init(void);
-extern void imx21_soc_init(void);
-extern void imx25_soc_init(void);
-extern void imx27_soc_init(void);
-extern void imx31_soc_init(void);
-extern void imx35_soc_init(void);
-extern void imx51_soc_init(void);
-extern void imx51_init_late(void);
-extern void imx53_init_late(void);
-extern void epit_timer_init(void __iomem *base, int irq);
-extern void mxc_timer_init(void __iomem *, int);
-extern int mx1_clocks_init(unsigned long fref);
-extern int mx21_clocks_init(unsigned long lref, unsigned long fref);
-extern int mx25_clocks_init(void);
-extern int mx27_clocks_init(unsigned long fref);
-extern int mx31_clocks_init(unsigned long fref);
-extern int mx35_clocks_init(void);
-extern int mx51_clocks_init(unsigned long ckil, unsigned long osc,
+void mx1_map_io(void);
+void mx21_map_io(void);
+void mx25_map_io(void);
+void mx27_map_io(void);
+void mx31_map_io(void);
+void mx35_map_io(void);
+void mx51_map_io(void);
+void mx53_map_io(void);
+void imx1_init_early(void);
+void imx21_init_early(void);
+void imx25_init_early(void);
+void imx27_init_early(void);
+void imx31_init_early(void);
+void imx35_init_early(void);
+void imx51_init_early(void);
+void imx53_init_early(void);
+void mxc_init_irq(void __iomem *);
+void tzic_init_irq(void __iomem *);
+void mx1_init_irq(void);
+void mx21_init_irq(void);
+void mx25_init_irq(void);
+void mx27_init_irq(void);
+void mx31_init_irq(void);
+void mx35_init_irq(void);
+void mx51_init_irq(void);
+void mx53_init_irq(void);
+void imx1_soc_init(void);
+void imx21_soc_init(void);
+void imx25_soc_init(void);
+void imx27_soc_init(void);
+void imx31_soc_init(void);
+void imx35_soc_init(void);
+void imx51_soc_init(void);
+void imx51_init_late(void);
+void imx53_init_late(void);
+void epit_timer_init(void __iomem *base, int irq);
+void mxc_timer_init(void __iomem *, int);
+int mx1_clocks_init(unsigned long fref);
+int mx21_clocks_init(unsigned long lref, unsigned long fref);
+int mx25_clocks_init(void);
+int mx27_clocks_init(unsigned long fref);
+int mx31_clocks_init(unsigned long fref);
+int mx35_clocks_init(void);
+int mx51_clocks_init(unsigned long ckil, unsigned long osc,
 			unsigned long ckih1, unsigned long ckih2);
-extern int mx25_clocks_init_dt(void);
-extern int mx27_clocks_init_dt(void);
-extern int mx31_clocks_init_dt(void);
-extern struct platform_device *mxc_register_gpio(char *name, int id,
+int mx25_clocks_init_dt(void);
+int mx27_clocks_init_dt(void);
+int mx31_clocks_init_dt(void);
+struct platform_device *mxc_register_gpio(char *name, int id,
 	resource_size_t iobase, resource_size_t iosize, int irq, int irq_high);
-extern void mxc_set_cpu_type(unsigned int type);
-extern void mxc_restart(enum reboot_mode, const char *);
-extern void mxc_arch_reset_init(void __iomem *);
-extern void mxc_arch_reset_init_dt(void);
-extern int mx53_revision(void);
-extern void imx_set_aips(void __iomem *);
-extern int mxc_device_init(void);
+void mxc_set_cpu_type(unsigned int type);
+void mxc_restart(enum reboot_mode, const char *);
+void mxc_arch_reset_init(void __iomem *);
+void mxc_arch_reset_init_dt(void);
+int mx53_revision(void);
+void imx_set_aips(void __iomem *);
+int mxc_device_init(void);
 void imx_set_soc_revision(unsigned int rev);
 unsigned int imx_get_soc_revision(void);
 void imx_init_revision_from_anatop(void);
@@ -95,8 +95,8 @@ enum mx3_cpu_pwr_mode {
 	MX3_SLEEP,
 };
 
-extern void mx3_cpu_lp_set(enum mx3_cpu_pwr_mode mode);
-extern void imx_print_silicon_rev(const char *cpu, int srev);
+void mx3_cpu_lp_set(enum mx3_cpu_pwr_mode mode);
+void imx_print_silicon_rev(const char *cpu, int srev);
 
 void avic_handle_irq(struct pt_regs *);
 void tzic_handle_irq(struct pt_regs *);
@@ -110,57 +110,57 @@ void tzic_handle_irq(struct pt_regs *);
 #define imx51_handle_irq tzic_handle_irq
 #define imx53_handle_irq tzic_handle_irq
 
-extern void imx_enable_cpu(int cpu, bool enable);
-extern void imx_set_cpu_jump(int cpu, void *jump_addr);
-extern u32 imx_get_cpu_arg(int cpu);
-extern void imx_set_cpu_arg(int cpu, u32 arg);
-extern void v7_cpu_resume(void);
+void imx_enable_cpu(int cpu, bool enable);
+void imx_set_cpu_jump(int cpu, void *jump_addr);
+u32 imx_get_cpu_arg(int cpu);
+void imx_set_cpu_arg(int cpu, u32 arg);
+void v7_cpu_resume(void);
 #ifdef CONFIG_SMP
-extern void v7_secondary_startup(void);
-extern void imx_scu_map_io(void);
-extern void imx_smp_prepare(void);
-extern void imx_scu_standby_enable(void);
+void v7_secondary_startup(void);
+void imx_scu_map_io(void);
+void imx_smp_prepare(void);
+void imx_scu_standby_enable(void);
 #else
 static inline void imx_scu_map_io(void) {}
 static inline void imx_smp_prepare(void) {}
 static inline void imx_scu_standby_enable(void) {}
 #endif
-extern void imx_src_init(void);
+void imx_src_init(void);
 #ifdef CONFIG_HAVE_IMX_SRC
-extern void imx_src_prepare_restart(void);
+void imx_src_prepare_restart(void);
 #else
 static inline void imx_src_prepare_restart(void) {}
 #endif
-extern void imx_gpc_init(void);
-extern void imx_gpc_pre_suspend(void);
-extern void imx_gpc_post_resume(void);
-extern void imx_gpc_mask_all(void);
-extern void imx_gpc_restore_all(void);
-extern void imx_anatop_init(void);
-extern void imx_anatop_pre_suspend(void);
-extern void imx_anatop_post_resume(void);
-extern int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode);
-extern void imx6q_set_chicken_bit(void);
-
-extern void imx_cpu_die(unsigned int cpu);
-extern int imx_cpu_kill(unsigned int cpu);
+void imx_gpc_init(void);
+void imx_gpc_pre_suspend(void);
+void imx_gpc_post_resume(void);
+void imx_gpc_mask_all(void);
+void imx_gpc_restore_all(void);
+void imx_anatop_init(void);
+void imx_anatop_pre_suspend(void);
+void imx_anatop_post_resume(void);
+int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode);
+void imx6q_set_chicken_bit(void);
+
+void imx_cpu_die(unsigned int cpu);
+int imx_cpu_kill(unsigned int cpu);
 
 #ifdef CONFIG_PM
-extern void imx6q_pm_init(void);
-extern void imx5_pm_init(void);
+void imx6q_pm_init(void);
+void imx5_pm_init(void);
 #else
 static inline void imx6q_pm_init(void) {}
 static inline void imx5_pm_init(void) {}
 #endif
 
 #ifdef CONFIG_NEON
-extern int mx51_neon_fixup(void);
+int mx51_neon_fixup(void);
 #else
 static inline int mx51_neon_fixup(void) { return 0; }
 #endif
 
 #ifdef CONFIG_CACHE_L2X0
-extern void imx_init_l2cache(void);
+void imx_init_l2cache(void);
 #else
 static inline void imx_init_l2cache(void) {}
 #endif
-- 
cgit 


From 9e8147bb5ec5d1dda2141da70f96b98985a306cb Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Wed, 25 Sep 2013 23:09:36 +0800
Subject: ARM: imx6q: move low-power code out of clock driver

The LPM (Low Power Mode) code that currently sits in imx6q clock driver
will be reused by imx6sl.  Let's move it into pm-imx6q.c, so that we
can keep clock driver SoC specific and reuse pm-imx6q.c on imx6sl.

In order to avoid adding another ioremap for CCM block,
imx6q_pm_set_ccm_base() is created to let clock driver set up ccm_base
for pm code.

During the move, the unused CCGR macros get removed.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/clk-imx6q.c | 156 +-----------------------------------------
 arch/arm/mach-imx/common.h    |   2 +
 arch/arm/mach-imx/pm-imx6q.c  | 152 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 156 insertions(+), 154 deletions(-)

diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
index 07bc0d8b573f..d756d91fd741 100644
--- a/arch/arm/mach-imx/clk-imx6q.c
+++ b/arch/arm/mach-imx/clk-imx6q.c
@@ -14,7 +14,6 @@
 #include <linux/types.h>
 #include <linux/clk.h>
 #include <linux/clkdev.h>
-#include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/io.h>
 #include <linux/of.h>
@@ -25,155 +24,6 @@
 #include "common.h"
 #include "hardware.h"
 
-#define CCR				0x0
-#define BM_CCR_WB_COUNT			(0x7 << 16)
-#define BM_CCR_RBC_BYPASS_COUNT		(0x3f << 21)
-#define BM_CCR_RBC_EN			(0x1 << 27)
-
-#define CCGR0				0x68
-#define CCGR1				0x6c
-#define CCGR2				0x70
-#define CCGR3				0x74
-#define CCGR4				0x78
-#define CCGR5				0x7c
-#define CCGR6				0x80
-#define CCGR7				0x84
-
-#define CLPCR				0x54
-#define BP_CLPCR_LPM			0
-#define BM_CLPCR_LPM			(0x3 << 0)
-#define BM_CLPCR_BYPASS_PMIC_READY	(0x1 << 2)
-#define BM_CLPCR_ARM_CLK_DIS_ON_LPM	(0x1 << 5)
-#define BM_CLPCR_SBYOS			(0x1 << 6)
-#define BM_CLPCR_DIS_REF_OSC		(0x1 << 7)
-#define BM_CLPCR_VSTBY			(0x1 << 8)
-#define BP_CLPCR_STBY_COUNT		9
-#define BM_CLPCR_STBY_COUNT		(0x3 << 9)
-#define BM_CLPCR_COSC_PWRDOWN		(0x1 << 11)
-#define BM_CLPCR_WB_PER_AT_LPM		(0x1 << 16)
-#define BM_CLPCR_WB_CORE_AT_LPM		(0x1 << 17)
-#define BM_CLPCR_BYP_MMDC_CH0_LPM_HS	(0x1 << 19)
-#define BM_CLPCR_BYP_MMDC_CH1_LPM_HS	(0x1 << 21)
-#define BM_CLPCR_MASK_CORE0_WFI		(0x1 << 22)
-#define BM_CLPCR_MASK_CORE1_WFI		(0x1 << 23)
-#define BM_CLPCR_MASK_CORE2_WFI		(0x1 << 24)
-#define BM_CLPCR_MASK_CORE3_WFI		(0x1 << 25)
-#define BM_CLPCR_MASK_SCU_IDLE		(0x1 << 26)
-#define BM_CLPCR_MASK_L2CC_IDLE		(0x1 << 27)
-
-#define CGPR				0x64
-#define BM_CGPR_CHICKEN_BIT		(0x1 << 17)
-
-static void __iomem *ccm_base;
-
-void imx6q_set_chicken_bit(void)
-{
-	u32 val = readl_relaxed(ccm_base + CGPR);
-
-	val |= BM_CGPR_CHICKEN_BIT;
-	writel_relaxed(val, ccm_base + CGPR);
-}
-
-static void imx6q_enable_rbc(bool enable)
-{
-	u32 val;
-	static bool last_rbc_mode;
-
-	if (last_rbc_mode == enable)
-		return;
-	/*
-	 * need to mask all interrupts in GPC before
-	 * operating RBC configurations
-	 */
-	imx_gpc_mask_all();
-
-	/* configure RBC enable bit */
-	val = readl_relaxed(ccm_base + CCR);
-	val &= ~BM_CCR_RBC_EN;
-	val |= enable ? BM_CCR_RBC_EN : 0;
-	writel_relaxed(val, ccm_base + CCR);
-
-	/* configure RBC count */
-	val = readl_relaxed(ccm_base + CCR);
-	val &= ~BM_CCR_RBC_BYPASS_COUNT;
-	val |= enable ? BM_CCR_RBC_BYPASS_COUNT : 0;
-	writel(val, ccm_base + CCR);
-
-	/*
-	 * need to delay at least 2 cycles of CKIL(32K)
-	 * due to hardware design requirement, which is
-	 * ~61us, here we use 65us for safe
-	 */
-	udelay(65);
-
-	/* restore GPC interrupt mask settings */
-	imx_gpc_restore_all();
-
-	last_rbc_mode = enable;
-}
-
-static void imx6q_enable_wb(bool enable)
-{
-	u32 val;
-	static bool last_wb_mode;
-
-	if (last_wb_mode == enable)
-		return;
-
-	/* configure well bias enable bit */
-	val = readl_relaxed(ccm_base + CLPCR);
-	val &= ~BM_CLPCR_WB_PER_AT_LPM;
-	val |= enable ? BM_CLPCR_WB_PER_AT_LPM : 0;
-	writel_relaxed(val, ccm_base + CLPCR);
-
-	/* configure well bias count */
-	val = readl_relaxed(ccm_base + CCR);
-	val &= ~BM_CCR_WB_COUNT;
-	val |= enable ? BM_CCR_WB_COUNT : 0;
-	writel_relaxed(val, ccm_base + CCR);
-
-	last_wb_mode = enable;
-}
-
-int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
-{
-	u32 val = readl_relaxed(ccm_base + CLPCR);
-
-	val &= ~BM_CLPCR_LPM;
-	switch (mode) {
-	case WAIT_CLOCKED:
-		imx6q_enable_wb(false);
-		imx6q_enable_rbc(false);
-		break;
-	case WAIT_UNCLOCKED:
-		val |= 0x1 << BP_CLPCR_LPM;
-		val |= BM_CLPCR_ARM_CLK_DIS_ON_LPM;
-		break;
-	case STOP_POWER_ON:
-		val |= 0x2 << BP_CLPCR_LPM;
-		break;
-	case WAIT_UNCLOCKED_POWER_OFF:
-		val |= 0x1 << BP_CLPCR_LPM;
-		val &= ~BM_CLPCR_VSTBY;
-		val &= ~BM_CLPCR_SBYOS;
-		break;
-	case STOP_POWER_OFF:
-		val |= 0x2 << BP_CLPCR_LPM;
-		val |= 0x3 << BP_CLPCR_STBY_COUNT;
-		val |= BM_CLPCR_VSTBY;
-		val |= BM_CLPCR_SBYOS;
-		imx6q_enable_wb(true);
-		imx6q_enable_rbc(true);
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	writel_relaxed(val, ccm_base + CLPCR);
-
-	return 0;
-}
-
 static const char *step_sels[]	= { "osc", "pll2_pfd2_396m", };
 static const char *pll1_sw_sels[]	= { "pll1_sys", "step", };
 static const char *periph_pre_sels[]	= { "pll2_bus", "pll2_pfd2_396m", "pll2_pfd0_352m", "pll2_198m", };
@@ -384,7 +234,8 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
 	np = ccm_node;
 	base = of_iomap(np, 0);
 	WARN_ON(!base);
-	ccm_base = base;
+
+	imx6q_pm_set_ccm_base(base);
 
 	/*                                  name                reg       shift width parent_names     num_parents */
 	clk[step]             = imx_clk_mux("step",	        base + 0xc,  8,  1, step_sels,	       ARRAY_SIZE(step_sels));
@@ -627,9 +478,6 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
 	if (IS_ENABLED(CONFIG_PCI_IMX6))
 		clk_set_parent(clk[lvds1_sel], clk[sata_ref]);
 
-	/* Set initial power mode */
-	imx6q_set_lpm(WAIT_CLOCKED);
-
 	np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-gpt");
 	base = of_iomap(np, 0);
 	WARN_ON(!base);
diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index ddcbd90b4edf..fde6661ef70d 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -147,9 +147,11 @@ int imx_cpu_kill(unsigned int cpu);
 
 #ifdef CONFIG_PM
 void imx6q_pm_init(void);
+void imx6q_pm_set_ccm_base(void __iomem *base);
 void imx5_pm_init(void);
 #else
 static inline void imx6q_pm_init(void) {}
+static inline void imx6q_pm_set_ccm_base(void __iomem *base) {}
 static inline void imx5_pm_init(void) {}
 #endif
 
diff --git a/arch/arm/mach-imx/pm-imx6q.c b/arch/arm/mach-imx/pm-imx6q.c
index 204942749e21..461a895a1388 100644
--- a/arch/arm/mach-imx/pm-imx6q.c
+++ b/arch/arm/mach-imx/pm-imx6q.c
@@ -10,9 +10,11 @@
  * http://www.gnu.org/copyleft/gpl.html
  */
 
+#include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <linux/suspend.h>
 #include <asm/cacheflush.h>
 #include <asm/proc-fns.h>
@@ -22,6 +24,146 @@
 #include "common.h"
 #include "hardware.h"
 
+#define CCR				0x0
+#define BM_CCR_WB_COUNT			(0x7 << 16)
+#define BM_CCR_RBC_BYPASS_COUNT		(0x3f << 21)
+#define BM_CCR_RBC_EN			(0x1 << 27)
+
+#define CLPCR				0x54
+#define BP_CLPCR_LPM			0
+#define BM_CLPCR_LPM			(0x3 << 0)
+#define BM_CLPCR_BYPASS_PMIC_READY	(0x1 << 2)
+#define BM_CLPCR_ARM_CLK_DIS_ON_LPM	(0x1 << 5)
+#define BM_CLPCR_SBYOS			(0x1 << 6)
+#define BM_CLPCR_DIS_REF_OSC		(0x1 << 7)
+#define BM_CLPCR_VSTBY			(0x1 << 8)
+#define BP_CLPCR_STBY_COUNT		9
+#define BM_CLPCR_STBY_COUNT		(0x3 << 9)
+#define BM_CLPCR_COSC_PWRDOWN		(0x1 << 11)
+#define BM_CLPCR_WB_PER_AT_LPM		(0x1 << 16)
+#define BM_CLPCR_WB_CORE_AT_LPM		(0x1 << 17)
+#define BM_CLPCR_BYP_MMDC_CH0_LPM_HS	(0x1 << 19)
+#define BM_CLPCR_BYP_MMDC_CH1_LPM_HS	(0x1 << 21)
+#define BM_CLPCR_MASK_CORE0_WFI		(0x1 << 22)
+#define BM_CLPCR_MASK_CORE1_WFI		(0x1 << 23)
+#define BM_CLPCR_MASK_CORE2_WFI		(0x1 << 24)
+#define BM_CLPCR_MASK_CORE3_WFI		(0x1 << 25)
+#define BM_CLPCR_MASK_SCU_IDLE		(0x1 << 26)
+#define BM_CLPCR_MASK_L2CC_IDLE		(0x1 << 27)
+
+#define CGPR				0x64
+#define BM_CGPR_CHICKEN_BIT		(0x1 << 17)
+
+static void __iomem *ccm_base;
+
+void imx6q_set_chicken_bit(void)
+{
+	u32 val = readl_relaxed(ccm_base + CGPR);
+
+	val |= BM_CGPR_CHICKEN_BIT;
+	writel_relaxed(val, ccm_base + CGPR);
+}
+
+static void imx6q_enable_rbc(bool enable)
+{
+	u32 val;
+	static bool last_rbc_mode;
+
+	if (last_rbc_mode == enable)
+		return;
+	/*
+	 * need to mask all interrupts in GPC before
+	 * operating RBC configurations
+	 */
+	imx_gpc_mask_all();
+
+	/* configure RBC enable bit */
+	val = readl_relaxed(ccm_base + CCR);
+	val &= ~BM_CCR_RBC_EN;
+	val |= enable ? BM_CCR_RBC_EN : 0;
+	writel_relaxed(val, ccm_base + CCR);
+
+	/* configure RBC count */
+	val = readl_relaxed(ccm_base + CCR);
+	val &= ~BM_CCR_RBC_BYPASS_COUNT;
+	val |= enable ? BM_CCR_RBC_BYPASS_COUNT : 0;
+	writel(val, ccm_base + CCR);
+
+	/*
+	 * need to delay at least 2 cycles of CKIL(32K)
+	 * due to hardware design requirement, which is
+	 * ~61us, here we use 65us for safe
+	 */
+	udelay(65);
+
+	/* restore GPC interrupt mask settings */
+	imx_gpc_restore_all();
+
+	last_rbc_mode = enable;
+}
+
+static void imx6q_enable_wb(bool enable)
+{
+	u32 val;
+	static bool last_wb_mode;
+
+	if (last_wb_mode == enable)
+		return;
+
+	/* configure well bias enable bit */
+	val = readl_relaxed(ccm_base + CLPCR);
+	val &= ~BM_CLPCR_WB_PER_AT_LPM;
+	val |= enable ? BM_CLPCR_WB_PER_AT_LPM : 0;
+	writel_relaxed(val, ccm_base + CLPCR);
+
+	/* configure well bias count */
+	val = readl_relaxed(ccm_base + CCR);
+	val &= ~BM_CCR_WB_COUNT;
+	val |= enable ? BM_CCR_WB_COUNT : 0;
+	writel_relaxed(val, ccm_base + CCR);
+
+	last_wb_mode = enable;
+}
+
+int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
+{
+	u32 val = readl_relaxed(ccm_base + CLPCR);
+
+	val &= ~BM_CLPCR_LPM;
+	switch (mode) {
+	case WAIT_CLOCKED:
+		imx6q_enable_wb(false);
+		imx6q_enable_rbc(false);
+		break;
+	case WAIT_UNCLOCKED:
+		val |= 0x1 << BP_CLPCR_LPM;
+		val |= BM_CLPCR_ARM_CLK_DIS_ON_LPM;
+		break;
+	case STOP_POWER_ON:
+		val |= 0x2 << BP_CLPCR_LPM;
+		break;
+	case WAIT_UNCLOCKED_POWER_OFF:
+		val |= 0x1 << BP_CLPCR_LPM;
+		val &= ~BM_CLPCR_VSTBY;
+		val &= ~BM_CLPCR_SBYOS;
+		break;
+	case STOP_POWER_OFF:
+		val |= 0x2 << BP_CLPCR_LPM;
+		val |= 0x3 << BP_CLPCR_STBY_COUNT;
+		val |= BM_CLPCR_VSTBY;
+		val |= BM_CLPCR_SBYOS;
+		imx6q_enable_wb(true);
+		imx6q_enable_rbc(true);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	writel_relaxed(val, ccm_base + CLPCR);
+
+	return 0;
+}
+
 static int imx6q_suspend_finish(unsigned long val)
 {
 	cpu_do_idle();
@@ -55,7 +197,17 @@ static const struct platform_suspend_ops imx6q_pm_ops = {
 	.valid = suspend_valid_only_mem,
 };
 
+void __init imx6q_pm_set_ccm_base(void __iomem *base)
+{
+	ccm_base = base;
+}
+
 void __init imx6q_pm_init(void)
 {
+	WARN_ON(!ccm_base);
+
+	/* Set initial power mode */
+	imx6q_set_lpm(WAIT_CLOCKED);
+
 	suspend_set_ops(&imx6q_pm_ops);
 }
-- 
cgit 


From 1d674a73c59211cc33cb9c2954659033d8458fa9 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Wed, 9 Oct 2013 20:31:28 +0800
Subject: ARM: imx6q: call WB and RBC configuration from imx6q_pm_enter()

The WB and RBC configuration calls are currently made from
imx6q_set_lpm() for WAIT_CLOCKED and WAIT_UNCLOCKED mode with a simple
state tracking.  This becomes unnecessary since we can make the calls
from imx6q_pm_enter() directly now for suspend.

More importantly, the current call of imx6q_enable_wb() from
imx6q_set_lpm() is buggy.  The CLPCR register bits configured by
imx6q_enable_wb() will get lost, because imx6q_set_lpm() caches the same
register and write it back at the end of the function.  That's why the
imx6dl suspend/resume does not work currently - the wakeup from suspend
triggers a reset on imx6dl.

Moves the WB and RBC calls into imx6q_pm_enter() to save the state
tracking and fixes above bug, so that suspend/resume can start working
on imx6dl.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/pm-imx6q.c | 19 ++++---------------
 1 file changed, 4 insertions(+), 15 deletions(-)

diff --git a/arch/arm/mach-imx/pm-imx6q.c b/arch/arm/mach-imx/pm-imx6q.c
index 461a895a1388..fb7d90d36672 100644
--- a/arch/arm/mach-imx/pm-imx6q.c
+++ b/arch/arm/mach-imx/pm-imx6q.c
@@ -67,10 +67,7 @@ void imx6q_set_chicken_bit(void)
 static void imx6q_enable_rbc(bool enable)
 {
 	u32 val;
-	static bool last_rbc_mode;
 
-	if (last_rbc_mode == enable)
-		return;
 	/*
 	 * need to mask all interrupts in GPC before
 	 * operating RBC configurations
@@ -98,17 +95,11 @@ static void imx6q_enable_rbc(bool enable)
 
 	/* restore GPC interrupt mask settings */
 	imx_gpc_restore_all();
-
-	last_rbc_mode = enable;
 }
 
 static void imx6q_enable_wb(bool enable)
 {
 	u32 val;
-	static bool last_wb_mode;
-
-	if (last_wb_mode == enable)
-		return;
 
 	/* configure well bias enable bit */
 	val = readl_relaxed(ccm_base + CLPCR);
@@ -121,8 +112,6 @@ static void imx6q_enable_wb(bool enable)
 	val &= ~BM_CCR_WB_COUNT;
 	val |= enable ? BM_CCR_WB_COUNT : 0;
 	writel_relaxed(val, ccm_base + CCR);
-
-	last_wb_mode = enable;
 }
 
 int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
@@ -132,8 +121,6 @@ int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
 	val &= ~BM_CLPCR_LPM;
 	switch (mode) {
 	case WAIT_CLOCKED:
-		imx6q_enable_wb(false);
-		imx6q_enable_rbc(false);
 		break;
 	case WAIT_UNCLOCKED:
 		val |= 0x1 << BP_CLPCR_LPM;
@@ -152,8 +139,6 @@ int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
 		val |= 0x3 << BP_CLPCR_STBY_COUNT;
 		val |= BM_CLPCR_VSTBY;
 		val |= BM_CLPCR_SBYOS;
-		imx6q_enable_wb(true);
-		imx6q_enable_rbc(true);
 		break;
 	default:
 		return -EINVAL;
@@ -175,6 +160,8 @@ static int imx6q_pm_enter(suspend_state_t state)
 	switch (state) {
 	case PM_SUSPEND_MEM:
 		imx6q_set_lpm(STOP_POWER_OFF);
+		imx6q_enable_wb(true);
+		imx6q_enable_rbc(true);
 		imx_gpc_pre_suspend();
 		imx_anatop_pre_suspend();
 		imx_set_cpu_jump(0, v7_cpu_resume);
@@ -183,6 +170,8 @@ static int imx6q_pm_enter(suspend_state_t state)
 		imx_smp_prepare();
 		imx_anatop_post_resume();
 		imx_gpc_post_resume();
+		imx6q_enable_rbc(false);
+		imx6q_enable_wb(false);
 		imx6q_set_lpm(WAIT_CLOCKED);
 		break;
 	default:
-- 
cgit 


From d48866fefdac239a4e02777e712aad60db9ee8a8 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Wed, 16 Oct 2013 19:52:00 +0800
Subject: ARM: imx: ensure dsm_request signal is not asserted when setting LPM

There is a defect in imx6 LPM design.  When SW tries to enter low power
mode with following sequence, the chip will enter low power mode before
A9 CPU execute WFI instruction:

1. Set CCM_CLPCR[1:0] to 2'b00;
2. ARM CPU enters WFI;
3. ARM CPU wakeup from an interrupt event, which is masked by GPC or not
   visible to GPC, such as interrupt from local timer;
4. Set CCM_CLPCR[1:0] to 2'b01 or 2'b10;
5. ARM CPU execute WFI.

Before the last step, the chip will enter WAIT mode if CCM_CLPCR[1:0] is
set to 2'b01, or enter STOP mode if CCM_CLPCR[1:0] is set to 2'b10.

The patch implements a recommended workaround for this issue.

1. SW triggers irq #32(IOMUX) to be always pending manually by setting
   IOMUX_GPR1_GINT bit;
2. SW should then unmask it in GPC before setting CCM LPM;
3. SW should mask it right after CCM LPM is set (bit0-1 of CCM_CLPCR).

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/common.h   |  3 +++
 arch/arm/mach-imx/gpc.c      |  4 ++--
 arch/arm/mach-imx/pm-imx6q.c | 26 ++++++++++++++++++++++++++
 3 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index fde6661ef70d..7cbe22d0c6e9 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -13,6 +13,7 @@
 
 #include <linux/reboot.h>
 
+struct irq_data;
 struct platform_device;
 struct pt_regs;
 struct clk;
@@ -136,6 +137,8 @@ void imx_gpc_pre_suspend(void);
 void imx_gpc_post_resume(void);
 void imx_gpc_mask_all(void);
 void imx_gpc_restore_all(void);
+void imx_gpc_irq_mask(struct irq_data *d);
+void imx_gpc_irq_unmask(struct irq_data *d);
 void imx_anatop_init(void);
 void imx_anatop_pre_suspend(void);
 void imx_anatop_post_resume(void);
diff --git a/arch/arm/mach-imx/gpc.c b/arch/arm/mach-imx/gpc.c
index 44a65e9ff1fc..586e0171a652 100644
--- a/arch/arm/mach-imx/gpc.c
+++ b/arch/arm/mach-imx/gpc.c
@@ -90,7 +90,7 @@ void imx_gpc_restore_all(void)
 		writel_relaxed(gpc_saved_imrs[i], reg_imr1 + i * 4);
 }
 
-static void imx_gpc_irq_unmask(struct irq_data *d)
+void imx_gpc_irq_unmask(struct irq_data *d)
 {
 	void __iomem *reg;
 	u32 val;
@@ -105,7 +105,7 @@ static void imx_gpc_irq_unmask(struct irq_data *d)
 	writel_relaxed(val, reg);
 }
 
-static void imx_gpc_irq_mask(struct irq_data *d)
+void imx_gpc_irq_mask(struct irq_data *d)
 {
 	void __iomem *reg;
 	u32 val;
diff --git a/arch/arm/mach-imx/pm-imx6q.c b/arch/arm/mach-imx/pm-imx6q.c
index fb7d90d36672..f303b56f087c 100644
--- a/arch/arm/mach-imx/pm-imx6q.c
+++ b/arch/arm/mach-imx/pm-imx6q.c
@@ -13,8 +13,12 @@
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/mfd/syscon.h>
+#include <linux/mfd/syscon/imx6q-iomuxc-gpr.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
+#include <linux/regmap.h>
 #include <linux/suspend.h>
 #include <asm/cacheflush.h>
 #include <asm/proc-fns.h>
@@ -116,6 +120,7 @@ static void imx6q_enable_wb(bool enable)
 
 int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
 {
+	struct irq_desc *iomuxc_irq_desc;
 	u32 val = readl_relaxed(ccm_base + CLPCR);
 
 	val &= ~BM_CLPCR_LPM;
@@ -144,7 +149,16 @@ int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
 		return -EINVAL;
 	}
 
+	/*
+	 * Unmask the always pending IOMUXC interrupt #32 as wakeup source to
+	 * deassert dsm_request signal, so that we can ensure dsm_request
+	 * is not asserted when we're going to write CLPCR register to set LPM.
+	 * After setting up LPM bits, we need to mask this wakeup source.
+	 */
+	iomuxc_irq_desc = irq_to_desc(32);
+	imx_gpc_irq_unmask(&iomuxc_irq_desc->irq_data);
 	writel_relaxed(val, ccm_base + CLPCR);
+	imx_gpc_irq_mask(&iomuxc_irq_desc->irq_data);
 
 	return 0;
 }
@@ -193,8 +207,20 @@ void __init imx6q_pm_set_ccm_base(void __iomem *base)
 
 void __init imx6q_pm_init(void)
 {
+	struct regmap *gpr;
+
 	WARN_ON(!ccm_base);
 
+	/*
+	 * Force IOMUXC irq pending, so that the interrupt to GPC can be
+	 * used to deassert dsm_request signal when the signal gets
+	 * asserted unexpectedly.
+	 */
+	gpr = syscon_regmap_lookup_by_compatible("fsl,imx6q-iomuxc-gpr");
+	if (!IS_ERR(gpr))
+		regmap_update_bits(gpr, IOMUXC_GPR1, IMX6Q_GPR1_GINT,
+				   IMX6Q_GPR1_GINT);
+
 	/* Set initial power mode */
 	imx6q_set_lpm(WAIT_CLOCKED);
 
-- 
cgit 


From 9ba64fe3eb461b95bf11436a13db0d9c79465514 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Thu, 17 Oct 2013 10:07:09 +0800
Subject: ARM: imx: enable suspend for imx6sl

The imx6sl low power mode implementation inherits imx6q/dl one,
and pm-imx6q.c can just work for imx6sl with some minor updates.
Let's enable imx6sl suspend support by reusing pm-imx6q.c and use
cpu_is_imxXX() to handle the those minor differences between imx6sl
and imx6q/dl.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/Makefile      | 2 ++
 arch/arm/mach-imx/clk-imx6sl.c  | 3 +++
 arch/arm/mach-imx/mach-imx6sl.c | 3 +++
 arch/arm/mach-imx/mxc.h         | 5 +++++
 arch/arm/mach-imx/pm-imx6q.c    | 9 ++++++++-
 5 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index 5383c589ad71..bbe1f5bb799c 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -102,6 +102,8 @@ obj-$(CONFIG_SOC_IMX6SL) += clk-imx6sl.o mach-imx6sl.o
 
 ifeq ($(CONFIG_PM),y)
 obj-$(CONFIG_SOC_IMX6Q) += pm-imx6q.o headsmp.o
+# i.MX6SL reuses pm-imx6q.c
+obj-$(CONFIG_SOC_IMX6SL) += pm-imx6q.o
 endif
 
 # i.MX5 based machines
diff --git a/arch/arm/mach-imx/clk-imx6sl.c b/arch/arm/mach-imx/clk-imx6sl.c
index a5c3c5d21aee..c0c4ef55e35b 100644
--- a/arch/arm/mach-imx/clk-imx6sl.c
+++ b/arch/arm/mach-imx/clk-imx6sl.c
@@ -127,6 +127,9 @@ static void __init imx6sl_clocks_init(struct device_node *ccm_node)
 	base = of_iomap(np, 0);
 	WARN_ON(!base);
 
+	/* Reuse imx6q pm code */
+	imx6q_pm_set_ccm_base(base);
+
 	/*                                              name                reg       shift width parent_names     num_parents */
 	clks[IMX6SL_CLK_STEP]             = imx_clk_mux("step",             base + 0xc,  8,  1, step_sels,         ARRAY_SIZE(step_sels));
 	clks[IMX6SL_CLK_PLL1_SW]          = imx_clk_mux("pll1_sw",          base + 0xc,  2,  1, pll1_sw_sels,      ARRAY_SIZE(pll1_sw_sels));
diff --git a/arch/arm/mach-imx/mach-imx6sl.c b/arch/arm/mach-imx/mach-imx6sl.c
index f01aaabd3254..2f952e3fcf89 100644
--- a/arch/arm/mach-imx/mach-imx6sl.c
+++ b/arch/arm/mach-imx/mach-imx6sl.c
@@ -47,6 +47,9 @@ static void __init imx6sl_init_machine(void)
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, parent);
 
 	imx6sl_fec_init();
+	imx_anatop_init();
+	/* Reuse imx6q pm code */
+	imx6q_pm_init();
 }
 
 static void __init imx6sl_init_irq(void)
diff --git a/arch/arm/mach-imx/mxc.h b/arch/arm/mach-imx/mxc.h
index 99e03ea9bf79..b08ab3ad4a6d 100644
--- a/arch/arm/mach-imx/mxc.h
+++ b/arch/arm/mach-imx/mxc.h
@@ -153,6 +153,11 @@ extern unsigned int __mxc_cpu_type;
 #endif
 
 #ifndef __ASSEMBLY__
+static inline bool cpu_is_imx6sl(void)
+{
+	return __mxc_cpu_type == MXC_CPU_IMX6SL;
+}
+
 static inline bool cpu_is_imx6dl(void)
 {
 	return __mxc_cpu_type == MXC_CPU_IMX6DL;
diff --git a/arch/arm/mach-imx/pm-imx6q.c b/arch/arm/mach-imx/pm-imx6q.c
index f303b56f087c..aecd9f8037e0 100644
--- a/arch/arm/mach-imx/pm-imx6q.c
+++ b/arch/arm/mach-imx/pm-imx6q.c
@@ -144,6 +144,12 @@ int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode)
 		val |= 0x3 << BP_CLPCR_STBY_COUNT;
 		val |= BM_CLPCR_VSTBY;
 		val |= BM_CLPCR_SBYOS;
+		if (cpu_is_imx6sl()) {
+			val |= BM_CLPCR_BYPASS_PMIC_READY;
+			val |= BM_CLPCR_BYP_MMDC_CH0_LPM_HS;
+		} else {
+			val |= BM_CLPCR_BYP_MMDC_CH1_LPM_HS;
+		}
 		break;
 	default:
 		return -EINVAL;
@@ -181,7 +187,8 @@ static int imx6q_pm_enter(suspend_state_t state)
 		imx_set_cpu_jump(0, v7_cpu_resume);
 		/* Zzz ... */
 		cpu_suspend(0, imx6q_suspend_finish);
-		imx_smp_prepare();
+		if (cpu_is_imx6q() || cpu_is_imx6dl())
+			imx_smp_prepare();
 		imx_anatop_post_resume();
 		imx_gpc_post_resume();
 		imx6q_enable_rbc(false);
-- 
cgit 


From d338bce130e354c679f6f93252845afde1b33fec Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Sun, 20 Oct 2013 09:06:18 -0700
Subject: staging: lustre: libcfs: Remove bitmap.h file

The functions in the bitmap.h header file are not being used by
any source file in the lustre driver.

Unless there are any objections, please remove the bitmap.h
header file as it contains unused code in the kernel.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../staging/lustre/include/linux/libcfs/bitmap.h   | 110 ---------------------
 1 file changed, 110 deletions(-)

diff --git a/drivers/staging/lustre/include/linux/libcfs/bitmap.h b/drivers/staging/lustre/include/linux/libcfs/bitmap.h
index f3d4a896a75a..8b137891791f 100644
--- a/drivers/staging/lustre/include/linux/libcfs/bitmap.h
+++ b/drivers/staging/lustre/include/linux/libcfs/bitmap.h
@@ -1,111 +1 @@
-/*
- * GPL HEADER START
- *
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 only,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * General Public License version 2 for more details (a copy is included
- * in the LICENSE file that accompanied this code).
- *
- * You should have received a copy of the GNU General Public License
- * version 2 along with this program; If not, see
- * http://www.sun.com/software/products/lustre/docs/GPLv2.pdf
- *
- * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
- * CA 95054 USA or visit www.sun.com if you need additional information or
- * have any questions.
- *
- * GPL HEADER END
- */
-/*
- * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- * Use is subject to license terms.
- *
- * Copyright (c) 2012, Intel Corporation.
- */
-/*
- * This file is part of Lustre, http://www.lustre.org/
- * Lustre is a trademark of Sun Microsystems, Inc.
- */
-#ifndef _LIBCFS_BITMAP_H_
-#define _LIBCFS_BITMAP_H_
 
-
-typedef struct {
-	int	     size;
-	unsigned long   data[0];
-} cfs_bitmap_t;
-
-#define CFS_BITMAP_SIZE(nbits) \
-     (((nbits/BITS_PER_LONG)+1)*sizeof(long)+sizeof(cfs_bitmap_t))
-
-static inline
-cfs_bitmap_t *CFS_ALLOCATE_BITMAP(int size)
-{
-	cfs_bitmap_t *ptr;
-
-	OBD_ALLOC(ptr, CFS_BITMAP_SIZE(size));
-	if (ptr == NULL)
-		return ptr;
-
-	ptr->size = size;
-
-	return ptr;
-}
-
-#define CFS_FREE_BITMAP(ptr)	OBD_FREE(ptr, CFS_BITMAP_SIZE(ptr->size))
-
-static inline
-void cfs_bitmap_set(cfs_bitmap_t *bitmap, int nbit)
-{
-	set_bit(nbit, bitmap->data);
-}
-
-static inline
-void cfs_bitmap_clear(cfs_bitmap_t *bitmap, int nbit)
-{
-	test_and_clear_bit(nbit, bitmap->data);
-}
-
-static inline
-int cfs_bitmap_check(cfs_bitmap_t *bitmap, int nbit)
-{
-	return test_bit(nbit, bitmap->data);
-}
-
-static inline
-int cfs_bitmap_test_and_clear(cfs_bitmap_t *bitmap, int nbit)
-{
-	return test_and_clear_bit(nbit, bitmap->data);
-}
-
-/* return 0 is bitmap has none set bits */
-static inline
-int cfs_bitmap_check_empty(cfs_bitmap_t *bitmap)
-{
-	return find_first_bit(bitmap->data, bitmap->size) == bitmap->size;
-}
-
-static inline
-void cfs_bitmap_copy(cfs_bitmap_t *new, cfs_bitmap_t *old)
-{
-	int newsize;
-
-	LASSERT(new->size >= old->size);
-	newsize = new->size;
-	memcpy(new, old, CFS_BITMAP_SIZE(old->size));
-	new->size = newsize;
-}
-
-#define cfs_foreach_bit(bitmap, pos)					\
-	for ((pos) = find_first_bit((bitmap)->data, bitmap->size);	\
-	     (pos) < (bitmap)->size;					\
-	     (pos) = find_next_bit((bitmap)->data, (bitmap)->size, (pos) + 1))
-
-#endif
-- 
cgit 


From 66e7a94a1b5109a7f87e0f518f2d431ff536eee8 Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Sun, 20 Oct 2013 23:03:13 +0530
Subject: staging:lustre: Remove space between function name and open
 parenthesis

Remove checkpatch.pl warning of space prohibited between function name
and open parenthesis '('in /lustre/lov.

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../staging/lustre/lustre/lov/lov_cl_internal.h    | 36 +++++++++++-----------
 drivers/staging/lustre/lustre/lov/lov_dev.c        | 18 +++++------
 drivers/staging/lustre/lustre/lov/lov_obd.c        | 18 +++++------
 drivers/staging/lustre/lustre/lov/lov_request.c    |  4 +--
 4 files changed, 38 insertions(+), 38 deletions(-)

diff --git a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h
index 33d9ce68fedd..4276124d92e9 100644
--- a/drivers/staging/lustre/lustre/lov/lov_cl_internal.h
+++ b/drivers/staging/lustre/lustre/lov/lov_cl_internal.h
@@ -564,50 +564,50 @@ extern struct kmem_cache *lovsub_req_kmem;
 
 extern struct kmem_cache *lov_lock_link_kmem;
 
-int   lov_object_init     (const struct lu_env *env, struct lu_object *obj,
+int   lov_object_init(const struct lu_env *env, struct lu_object *obj,
 			   const struct lu_object_conf *conf);
-int   lovsub_object_init  (const struct lu_env *env, struct lu_object *obj,
+int   lovsub_object_init(const struct lu_env *env, struct lu_object *obj,
 			   const struct lu_object_conf *conf);
-int   lov_lock_init       (const struct lu_env *env, struct cl_object *obj,
+int   lov_lock_init(const struct lu_env *env, struct cl_object *obj,
 			   struct cl_lock *lock, const struct cl_io *io);
-int   lov_io_init	 (const struct lu_env *env, struct cl_object *obj,
+int   lov_io_init(const struct lu_env *env, struct cl_object *obj,
 			   struct cl_io *io);
-int   lovsub_lock_init    (const struct lu_env *env, struct cl_object *obj,
+int   lovsub_lock_init(const struct lu_env *env, struct cl_object *obj,
 			   struct cl_lock *lock, const struct cl_io *io);
 
-int   lov_lock_init_raid0 (const struct lu_env *env, struct cl_object *obj,
+int   lov_lock_init_raid0(const struct lu_env *env, struct cl_object *obj,
 			   struct cl_lock *lock, const struct cl_io *io);
-int   lov_lock_init_empty (const struct lu_env *env, struct cl_object *obj,
+int   lov_lock_init_empty(const struct lu_env *env, struct cl_object *obj,
 			   struct cl_lock *lock, const struct cl_io *io);
-int   lov_io_init_raid0   (const struct lu_env *env, struct cl_object *obj,
+int   lov_io_init_raid0(const struct lu_env *env, struct cl_object *obj,
 			   struct cl_io *io);
-int   lov_io_init_empty   (const struct lu_env *env, struct cl_object *obj,
+int   lov_io_init_empty(const struct lu_env *env, struct cl_object *obj,
 			   struct cl_io *io);
 int   lov_io_init_released(const struct lu_env *env, struct cl_object *obj,
 			   struct cl_io *io);
-void  lov_lock_unlink     (const struct lu_env *env, struct lov_lock_link *link,
+void  lov_lock_unlink(const struct lu_env *env, struct lov_lock_link *link,
 			   struct lovsub_lock *sub);
 
 struct lov_io_sub *lov_sub_get(const struct lu_env *env, struct lov_io *lio,
 			       int stripe);
-void  lov_sub_put	     (struct lov_io_sub *sub);
-int   lov_sublock_modify  (const struct lu_env *env, struct lov_lock *lov,
+void  lov_sub_put(struct lov_io_sub *sub);
+int   lov_sublock_modify(const struct lu_env *env, struct lov_lock *lov,
 			   struct lovsub_lock *sublock,
 			   const struct cl_lock_descr *d, int idx);
 
 
-int   lov_page_init       (const struct lu_env *env, struct cl_object *ob,
+int   lov_page_init(const struct lu_env *env, struct cl_object *ob,
 			   struct cl_page *page, struct page *vmpage);
-int   lovsub_page_init    (const struct lu_env *env, struct cl_object *ob,
+int   lovsub_page_init(const struct lu_env *env, struct cl_object *ob,
 			   struct cl_page *page, struct page *vmpage);
 
-int   lov_page_init_empty (const struct lu_env *env,
+int   lov_page_init_empty(const struct lu_env *env,
 			   struct cl_object *obj,
 			   struct cl_page *page, struct page *vmpage);
-int   lov_page_init_raid0 (const struct lu_env *env,
+int   lov_page_init_raid0(const struct lu_env *env,
 			   struct cl_object *obj,
 			   struct cl_page *page, struct page *vmpage);
-struct lu_object *lov_object_alloc   (const struct lu_env *env,
+struct lu_object *lov_object_alloc(const struct lu_env *env,
 				      const struct lu_object_header *hdr,
 				      struct lu_device *dev);
 struct lu_object *lovsub_object_alloc(const struct lu_env *env,
@@ -617,7 +617,7 @@ struct lu_object *lovsub_object_alloc(const struct lu_env *env,
 struct lov_lock_link *lov_lock_link_find(const struct lu_env *env,
 					 struct lov_lock *lck,
 					 struct lovsub_lock *sub);
-struct lov_io_sub    *lov_page_subio    (const struct lu_env *env,
+struct lov_io_sub    *lov_page_subio(const struct lu_env *env,
 					 struct lov_io *lio,
 					 const struct cl_page_slice *slice);
 
diff --git a/drivers/staging/lustre/lustre/lov/lov_dev.c b/drivers/staging/lustre/lustre/lov/lov_dev.c
index 099cebb05e44..77caaf6826cd 100644
--- a/drivers/staging/lustre/lustre/lov/lov_dev.c
+++ b/drivers/staging/lustre/lustre/lov/lov_dev.c
@@ -64,47 +64,47 @@ struct lu_kmem_descr lov_caches[] = {
 	{
 		.ckd_cache = &lov_lock_kmem,
 		.ckd_name  = "lov_lock_kmem",
-		.ckd_size  = sizeof (struct lov_lock)
+		.ckd_size  = sizeof(struct lov_lock)
 	},
 	{
 		.ckd_cache = &lov_object_kmem,
 		.ckd_name  = "lov_object_kmem",
-		.ckd_size  = sizeof (struct lov_object)
+		.ckd_size  = sizeof(struct lov_object)
 	},
 	{
 		.ckd_cache = &lov_thread_kmem,
 		.ckd_name  = "lov_thread_kmem",
-		.ckd_size  = sizeof (struct lov_thread_info)
+		.ckd_size  = sizeof(struct lov_thread_info)
 	},
 	{
 		.ckd_cache = &lov_session_kmem,
 		.ckd_name  = "lov_session_kmem",
-		.ckd_size  = sizeof (struct lov_session)
+		.ckd_size  = sizeof(struct lov_session)
 	},
 	{
 		.ckd_cache = &lov_req_kmem,
 		.ckd_name  = "lov_req_kmem",
-		.ckd_size  = sizeof (struct lov_req)
+		.ckd_size  = sizeof(struct lov_req)
 	},
 	{
 		.ckd_cache = &lovsub_lock_kmem,
 		.ckd_name  = "lovsub_lock_kmem",
-		.ckd_size  = sizeof (struct lovsub_lock)
+		.ckd_size  = sizeof(struct lovsub_lock)
 	},
 	{
 		.ckd_cache = &lovsub_object_kmem,
 		.ckd_name  = "lovsub_object_kmem",
-		.ckd_size  = sizeof (struct lovsub_object)
+		.ckd_size  = sizeof(struct lovsub_object)
 	},
 	{
 		.ckd_cache = &lovsub_req_kmem,
 		.ckd_name  = "lovsub_req_kmem",
-		.ckd_size  = sizeof (struct lovsub_req)
+		.ckd_size  = sizeof(struct lovsub_req)
 	},
 	{
 		.ckd_cache = &lov_lock_link_kmem,
 		.ckd_name  = "lov_lock_link_kmem",
-		.ckd_size  = sizeof (struct lov_lock_link)
+		.ckd_size  = sizeof(struct lov_lock_link)
 	},
 	{
 		.ckd_cache = NULL
diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c
index 0b47aba1332a..9cbddae74e97 100644
--- a/drivers/staging/lustre/lustre/lov/lov_obd.c
+++ b/drivers/staging/lustre/lustre/lov/lov_obd.c
@@ -1090,7 +1090,7 @@ static int lov_destroy(const struct lu_env *env, struct obd_export *exp,
 	if (rc)
 		GOTO(out, rc);
 
-	list_for_each (pos, &set->set_list) {
+	list_for_each(pos, &set->set_list) {
 		req = list_entry(pos, struct lov_request, rq_link);
 
 		if (oa->o_valid & OBD_MD_FLCOOKIE)
@@ -1141,7 +1141,7 @@ static int lov_getattr(const struct lu_env *env, struct obd_export *exp,
 	if (rc)
 		return rc;
 
-	list_for_each (pos, &set->set_list) {
+	list_for_each(pos, &set->set_list) {
 		req = list_entry(pos, struct lov_request, rq_link);
 
 		CDEBUG(D_INFO, "objid "DOSTID"[%d] has subobj "DOSTID" at idx"
@@ -1227,7 +1227,7 @@ static int lov_getattr_async(struct obd_export *exp, struct obd_info *oinfo,
 
 	if (!list_empty(&rqset->set_requests)) {
 		LASSERT(rc == 0);
-		LASSERT (rqset->set_interpret == NULL);
+		LASSERT(rqset->set_interpret == NULL);
 		rqset->set_interpret = lov_getattr_interpret;
 		rqset->set_arg = (void *)lovset;
 		return rc;
@@ -1267,7 +1267,7 @@ static int lov_setattr(const struct lu_env *env, struct obd_export *exp,
 	if (rc)
 		return rc;
 
-	list_for_each (pos, &set->set_list) {
+	list_for_each(pos, &set->set_list) {
 		req = list_entry(pos, struct lov_request, rq_link);
 
 		rc = obd_setattr(env, lov->lov_tgts[req->rq_idx]->ltd_exp,
@@ -1408,7 +1408,7 @@ static int lov_punch(const struct lu_env *env, struct obd_export *exp,
 	if (rc)
 		return rc;
 
-	list_for_each (pos, &set->set_list) {
+	list_for_each(pos, &set->set_list) {
 		req = list_entry(pos, struct lov_request, rq_link);
 
 		rc = obd_punch(env, lov->lov_tgts[req->rq_idx]->ltd_exp,
@@ -1472,7 +1472,7 @@ static int lov_sync(const struct lu_env *env, struct obd_export *exp,
 	CDEBUG(D_INFO, "fsync objid "DOSTID" ["LPX64", "LPX64"]\n",
 	       POSTID(&set->set_oi->oi_oa->o_oi), start, end);
 
-	list_for_each (pos, &set->set_list) {
+	list_for_each(pos, &set->set_list) {
 		req = list_entry(pos, struct lov_request, rq_link);
 
 		rc = obd_sync(env, lov->lov_tgts[req->rq_idx]->ltd_exp,
@@ -1557,7 +1557,7 @@ static int lov_brw(int cmd, struct obd_export *exp, struct obd_info *oinfo,
 	if (rc)
 		return rc;
 
-	list_for_each (pos, &set->set_list) {
+	list_for_each(pos, &set->set_list) {
 		struct obd_export *sub_exp;
 		struct brw_page *sub_pga;
 		req = list_entry(pos, struct lov_request, rq_link);
@@ -1612,7 +1612,7 @@ static int lov_enqueue(struct obd_export *exp, struct obd_info *oinfo,
 	if (rc)
 		return rc;
 
-	list_for_each (pos, &set->set_list) {
+	list_for_each(pos, &set->set_list) {
 		req = list_entry(pos, struct lov_request, rq_link);
 
 		rc = obd_enqueue(lov->lov_tgts[req->rq_idx]->ltd_exp,
@@ -1828,7 +1828,7 @@ static int lov_statfs_async(struct obd_export *exp, struct obd_info *oinfo,
 	if (rc)
 		return rc;
 
-	list_for_each (pos, &set->set_list) {
+	list_for_each(pos, &set->set_list) {
 		req = list_entry(pos, struct lov_request, rq_link);
 		rc = obd_statfs_async(lov->lov_tgts[req->rq_idx]->ltd_exp,
 				      &req->rq_oi, max_age, rqset);
diff --git a/drivers/staging/lustre/lustre/lov/lov_request.c b/drivers/staging/lustre/lustre/lov/lov_request.c
index f80e62646683..7ac62de946ed 100644
--- a/drivers/staging/lustre/lustre/lov/lov_request.c
+++ b/drivers/staging/lustre/lustre/lov/lov_request.c
@@ -630,7 +630,7 @@ static int common_attr_done(struct lov_request_set *set)
 	if (tmp_oa == NULL)
 		GOTO(out, rc = -ENOMEM);
 
-	list_for_each (pos, &set->set_list) {
+	list_for_each(pos, &set->set_list) {
 		req = list_entry(pos, struct lov_request, rq_link);
 
 		if (!req->rq_complete || req->rq_rc)
@@ -669,7 +669,7 @@ static int brw_done(struct lov_request_set *set)
 	struct list_head *pos;
 	struct lov_request *req;
 
-	list_for_each (pos, &set->set_list) {
+	list_for_each(pos, &set->set_list) {
 		req = list_entry(pos, struct lov_request, rq_link);
 
 		if (!req->rq_complete || req->rq_rc)
-- 
cgit 


From 5e4488316e524df601f87a92999a3ee26d6b17ee Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Sun, 20 Oct 2013 23:07:24 +0530
Subject: staging:lustre: Fix C99 style comments

Fix C99 style comments in lov_obd.c in accordance to checkpatch.pl
warning.

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/lov/lov_obd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c
index 9cbddae74e97..83d39435bbb6 100644
--- a/drivers/staging/lustre/lustre/lov/lov_obd.c
+++ b/drivers/staging/lustre/lustre/lov/lov_obd.c
@@ -2781,7 +2781,7 @@ struct obd_ops lov_obd_ops = {
 	.o_setup	       = lov_setup,
 	.o_precleanup	  = lov_precleanup,
 	.o_cleanup	     = lov_cleanup,
-	//.o_process_config      = lov_process_config,
+	/*.o_process_config      = lov_process_config,*/
 	.o_connect	     = lov_connect,
 	.o_disconnect	  = lov_disconnect,
 	.o_statfs	      = lov_statfs,
-- 
cgit 


From 2c0514ee8a4a02650310eaffb378dd1fd08a7bb1 Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Sun, 20 Oct 2013 23:06:35 +0530
Subject: staging:lustre: Replace max() with max_t()

Replace max() with max_t() in accordance to chekpatch.pl warning in
lov_obd.c.

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/lov/lov_obd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c
index 83d39435bbb6..df35b421b93a 100644
--- a/drivers/staging/lustre/lustre/lov/lov_obd.c
+++ b/drivers/staging/lustre/lustre/lov/lov_obd.c
@@ -554,7 +554,7 @@ static int lov_add_target(struct obd_device *obd, struct obd_uuid *uuidp,
 		struct lov_tgt_desc **newtgts, **old = NULL;
 		__u32 newsize, oldsize = 0;
 
-		newsize = max(lov->lov_tgt_size, (__u32)2);
+		newsize = max_t(__u32, lov->lov_tgt_size, 2);
 		while (newsize < index + 1)
 			newsize = newsize << 1;
 		OBD_ALLOC(newtgts, sizeof(*newtgts) * newsize);
-- 
cgit 


From 5f3a68f96d15cc3b6b2afd3e0f19e06913ee10d5 Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Sun, 20 Oct 2013 23:06:09 +0530
Subject: staging:lustre: Fix space before open parenthesis

Fix checkpatch.pl error "space required before the open parenthesis '('"
in lustre/lov.

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/lov/lov_dev.c     | 2 +-
 drivers/staging/lustre/lustre/lov/lov_io.c      | 2 +-
 drivers/staging/lustre/lustre/lov/lov_lock.c    | 2 +-
 drivers/staging/lustre/lustre/lov/lov_obd.c     | 2 +-
 drivers/staging/lustre/lustre/lov/lov_pack.c    | 2 +-
 drivers/staging/lustre/lustre/lov/lov_request.c | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/lustre/lustre/lov/lov_dev.c b/drivers/staging/lustre/lustre/lov/lov_dev.c
index 77caaf6826cd..7f422aacf6e5 100644
--- a/drivers/staging/lustre/lustre/lov/lov_dev.c
+++ b/drivers/staging/lustre/lustre/lov/lov_dev.c
@@ -446,7 +446,7 @@ static int lov_process_config(const struct lu_env *env,
 	cmd = cfg->lcfg_command;
 	rc = lov_process_config_base(d->ld_obd, cfg, &index, &gen);
 	if (rc == 0) {
-		switch(cmd) {
+		switch (cmd) {
 		case LCFG_LOV_ADD_OBD:
 		case LCFG_LOV_ADD_INA:
 			rc = lov_cl_add_target(env, d, index);
diff --git a/drivers/staging/lustre/lustre/lov/lov_io.c b/drivers/staging/lustre/lustre/lov/lov_io.c
index 5be0e2c243b0..2792fa5c4be2 100644
--- a/drivers/staging/lustre/lustre/lov/lov_io.c
+++ b/drivers/staging/lustre/lustre/lov/lov_io.c
@@ -86,7 +86,7 @@ static void lov_io_sub_inherit(struct cl_io *io, struct lov_io *lio,
 	struct lov_stripe_md *lsm    = lio->lis_object->lo_lsm;
 	struct cl_io	 *parent = lio->lis_cl.cis_io;
 
-	switch(io->ci_type) {
+	switch (io->ci_type) {
 	case CIT_SETATTR: {
 		io->u.ci_setattr.sa_attr = parent->u.ci_setattr.sa_attr;
 		io->u.ci_setattr.sa_valid = parent->u.ci_setattr.sa_valid;
diff --git a/drivers/staging/lustre/lustre/lov/lov_lock.c b/drivers/staging/lustre/lustre/lov/lov_lock.c
index 7682aeb3fa6a..a250b2f7773d 100644
--- a/drivers/staging/lustre/lustre/lov/lov_lock.c
+++ b/drivers/staging/lustre/lustre/lov/lov_lock.c
@@ -742,7 +742,7 @@ static void lov_lock_cancel(const struct lu_env *env,
 				continue;
 			}
 
-			switch(sublock->cll_state) {
+			switch (sublock->cll_state) {
 			case CLS_HELD:
 				rc = cl_unuse_try(subenv->lse_env, sublock);
 				lov_sublock_release(env, lck, i, 0, 0);
diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c
index df35b421b93a..379e2847f99b 100644
--- a/drivers/staging/lustre/lustre/lov/lov_obd.c
+++ b/drivers/staging/lustre/lustre/lov/lov_obd.c
@@ -923,7 +923,7 @@ int lov_process_config_base(struct obd_device *obd, struct lustre_cfg *lcfg,
 	int cmd;
 	int rc = 0;
 
-	switch(cmd = lcfg->lcfg_command) {
+	switch (cmd = lcfg->lcfg_command) {
 	case LCFG_LOV_ADD_OBD:
 	case LCFG_LOV_ADD_INA:
 	case LCFG_LOV_DEL_OBD: {
diff --git a/drivers/staging/lustre/lustre/lov/lov_pack.c b/drivers/staging/lustre/lustre/lov/lov_pack.c
index 2f80833f164a..dbd1ff0def1b 100644
--- a/drivers/staging/lustre/lustre/lov/lov_pack.c
+++ b/drivers/staging/lustre/lustre/lov/lov_pack.c
@@ -121,7 +121,7 @@ void lov_dump_lmm(int level, void *lmm)
 do {								    \
 	if (!(test)) lov_dump_lmm(D_ERROR, lmm);			\
 	LASSERT(test); /* so we know what assertion failed */	   \
-} while(0)
+} while (0)
 
 /* Pack LOV object metadata for disk storage.  It is packed in LE byte
  * order and is opaque to the networking layer.
diff --git a/drivers/staging/lustre/lustre/lov/lov_request.c b/drivers/staging/lustre/lustre/lov/lov_request.c
index 7ac62de946ed..bf324ae2946f 100644
--- a/drivers/staging/lustre/lustre/lov/lov_request.c
+++ b/drivers/staging/lustre/lustre/lov/lov_request.c
@@ -1315,7 +1315,7 @@ out_set:
 			(tot) = LOV_U64_MAX;			    \
 		else						    \
 			(tot) += (add);				 \
-	} while(0)
+	} while (0)
 
 int lov_fini_statfs(struct obd_device *obd, struct obd_statfs *osfs,int success)
 {
-- 
cgit 


From 126e7dab511859c99b767e7232ddd345e490ab9b Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Sun, 20 Oct 2013 23:05:37 +0530
Subject: staging:lustre: Fix externs should be avoided in .c files warning

Fix the checkpatch.pl warning 'externs should be avoided in .c files' in
lustre/lov.

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/lov/lov_dev.c      | 2 ++
 drivers/staging/lustre/lustre/lov/lov_internal.h | 2 ++
 drivers/staging/lustre/lustre/lov/lov_obd.c      | 2 --
 3 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/lustre/lustre/lov/lov_dev.c b/drivers/staging/lustre/lustre/lov/lov_dev.c
index 7f422aacf6e5..1f33b04b0c38 100644
--- a/drivers/staging/lustre/lustre/lov/lov_dev.c
+++ b/drivers/staging/lustre/lustre/lov/lov_dev.c
@@ -44,6 +44,8 @@
 #include <obd_class.h>
 
 #include "lov_cl_internal.h"
+#include "lov_internal.h"
+
 
 struct kmem_cache *lov_lock_kmem;
 struct kmem_cache *lov_object_kmem;
diff --git a/drivers/staging/lustre/lustre/lov/lov_internal.h b/drivers/staging/lustre/lustre/lov/lov_internal.h
index 9870d360a15a..796da8930876 100644
--- a/drivers/staging/lustre/lustre/lov/lov_internal.h
+++ b/drivers/staging/lustre/lustre/lov/lov_internal.h
@@ -89,6 +89,8 @@ struct lov_request_set {
 
 extern struct kmem_cache *lov_oinfo_slab;
 
+extern struct lu_kmem_descr lov_caches[];
+
 void lov_finish_set(struct lov_request_set *set);
 
 static inline void lov_get_reqset(struct lov_request_set *set)
diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c
index 379e2847f99b..1f9722828455 100644
--- a/drivers/staging/lustre/lustre/lov/lov_obd.c
+++ b/drivers/staging/lustre/lustre/lov/lov_obd.c
@@ -2823,8 +2823,6 @@ struct obd_ops lov_obd_ops = {
 
 struct kmem_cache *lov_oinfo_slab;
 
-extern struct lu_kmem_descr lov_caches[];
-
 int __init lov_init(void)
 {
 	struct lprocfs_static_vars lvars = { 0 };
-- 
cgit 


From bcc3b70425b8be702fda069e3e3ed066a0e37de2 Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Sun, 20 Oct 2013 23:05:00 +0530
Subject: staging:lustre: replace foo* with foo *

Fix checkpatch.pl warning of "(foo*)" should be "(foo *)" in lustre/lov

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/lov/lov_lock.c |  4 ++--
 drivers/staging/lustre/lustre/lov/lov_obd.c  | 10 +++++-----
 drivers/staging/lustre/lustre/lov/lov_pack.c |  6 +++---
 3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/lustre/lustre/lov/lov_lock.c b/drivers/staging/lustre/lustre/lov/lov_lock.c
index a250b2f7773d..26bc719b6dc8 100644
--- a/drivers/staging/lustre/lustre/lov/lov_lock.c
+++ b/drivers/staging/lustre/lustre/lov/lov_lock.c
@@ -88,7 +88,7 @@ static struct lov_sublock_env *lov_sublock_env_get(const struct lu_env *env,
 			subenv->lse_io  = sub->sub_io;
 			subenv->lse_sub = sub;
 		} else {
-			subenv = (void*)sub;
+			subenv = (void *)sub;
 		}
 	}
 	return subenv;
@@ -167,7 +167,7 @@ static struct cl_lock *lov_sublock_alloc(const struct lu_env *env,
 			lov_sublock_env_put(subenv);
 		} else {
 			/* error occurs. */
-			sublock = (void*)subenv;
+			sublock = (void *)subenv;
 		}
 
 		if (!IS_ERR(sublock))
diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c
index 1f9722828455..4783450774cd 100644
--- a/drivers/staging/lustre/lustre/lov/lov_obd.c
+++ b/drivers/staging/lustre/lustre/lov/lov_obd.c
@@ -1909,7 +1909,7 @@ static int lov_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
 					 (int) sizeof(struct obd_uuid))))
 			return -EFAULT;
 
-		flags = uarg ? *(__u32*)uarg : 0;
+		flags = uarg ? *(__u32 *)uarg : 0;
 		/* got statfs data */
 		rc = obd_statfs(NULL, lov->lov_tgts[index]->ltd_exp, &stat_buf,
 				cfs_time_shift_64(-OBD_STATFS_CACHE_SECONDS),
@@ -2495,7 +2495,7 @@ static int lov_get_info(const struct lu_env *env, struct obd_export *exp,
 		GOTO(out, rc);
 	} else if (KEY_IS(KEY_CONNECT_FLAG)) {
 		struct lov_tgt_desc *tgt;
-		__u64 ost_idx = *((__u64*)val);
+		__u64 ost_idx = *((__u64 *)val);
 
 		LASSERT(*vallen == sizeof(__u64));
 		LASSERT(ost_idx < lov->desc.ld_tgt_count);
@@ -2564,7 +2564,7 @@ static int lov_set_info_async(const struct lu_env *env, struct obd_export *exp,
 
 	for (i = 0; i < count; i++, val = (char *)val + incr) {
 		if (next_id) {
-			tgt = lov->lov_tgts[((struct obd_id_info*)val)->idx];
+			tgt = lov->lov_tgts[((struct obd_id_info *)val)->idx];
 		} else {
 			tgt = lov->lov_tgts[i];
 		}
@@ -2593,9 +2593,9 @@ static int lov_set_info_async(const struct lu_env *env, struct obd_export *exp,
 		} else if (next_id) {
 			err = obd_set_info_async(env, tgt->ltd_exp,
 					 keylen, key, vallen,
-					 ((struct obd_id_info*)val)->data, set);
+					 ((struct obd_id_info *)val)->data, set);
 		} else if (capa) {
-			struct mds_capa_info *info = (struct mds_capa_info*)val;
+			struct mds_capa_info *info = (struct mds_capa_info *)val;
 
 			LASSERT(vallen == sizeof(*info));
 
diff --git a/drivers/staging/lustre/lustre/lov/lov_pack.c b/drivers/staging/lustre/lustre/lov/lov_pack.c
index dbd1ff0def1b..ec6f6e0572ae 100644
--- a/drivers/staging/lustre/lustre/lov/lov_pack.c
+++ b/drivers/staging/lustre/lustre/lov/lov_pack.c
@@ -637,15 +637,15 @@ int lov_getstripe(struct obd_export *exp, struct lov_stripe_md *lsm,
 	    (lmmk->lmm_magic == cpu_to_le32(LOV_MAGIC_V3)))) {
 		lustre_swab_lov_mds_md(lmmk);
 		lustre_swab_lov_user_md_objects(
-				(struct lov_user_ost_data*)lmmk->lmm_objects,
+				(struct lov_user_ost_data *)lmmk->lmm_objects,
 				lmmk->lmm_stripe_count);
 	}
 	if (lum.lmm_magic == LOV_USER_MAGIC) {
 		/* User request for v1, we need skip lmm_pool_name */
 		if (lmmk->lmm_magic == LOV_MAGIC_V3) {
-			memmove((char*)(&lmmk->lmm_stripe_count) +
+			memmove((char *)(&lmmk->lmm_stripe_count) +
 				sizeof(lmmk->lmm_stripe_count),
-				((struct lov_mds_md_v3*)lmmk)->lmm_objects,
+				((struct lov_mds_md_v3 *)lmmk)->lmm_objects,
 				lmmk->lmm_stripe_count *
 				sizeof(struct lov_ost_data_v1));
 			lmm_size -= LOV_MAXPOOLNAME;
-- 
cgit 


From 29323b3e6bc65d95e2ef5add5db332fcb41ff2e6 Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Sun, 20 Oct 2013 21:33:20 -0700
Subject: staging: lustre: Remove typedef and update cfs_hash_lock union

Remove typedef keyword and rename the cfs_hash_lock_t
union to cfs_hash_lock in libcfs_hash.h. These changes
resolve the "Do not add new typedefs" warning
generated by checkpatch.pl and meet kernel coding style.

The union variables in hash.c are updated to reflect this
change as well.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../staging/lustre/include/linux/libcfs/libcfs_hash.h    | 16 ++++++++--------
 drivers/staging/lustre/lustre/libcfs/hash.c              | 12 ++++++------
 2 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
index 98f5be243c8e..b06505d8620d 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
@@ -81,10 +81,10 @@ struct cfs_hash_ops;
 struct cfs_hash_lock_ops;
 struct cfs_hash_hlist_ops;
 
-typedef union {
+union cfs_hash_lock {
 	rwlock_t		rw;		/**< rwlock */
 	spinlock_t		spin;		/**< spinlock */
-} cfs_hash_lock_t;
+};
 
 /**
  * cfs_hash_bucket is a container of:
@@ -98,7 +98,7 @@ typedef union {
  * - some extra bytes (caller can require it while creating hash)
  */
 typedef struct cfs_hash_bucket {
-	cfs_hash_lock_t		hsb_lock;	/**< bucket lock */
+	union cfs_hash_lock	hsb_lock;	/**< bucket lock */
 	__u32			hsb_count;	/**< current entries */
 	__u32			hsb_version;	/**< change version */
 	unsigned int		hsb_index;	/**< index of bucket */
@@ -213,7 +213,7 @@ enum cfs_hash_tag {
 typedef struct cfs_hash {
 	/** serialize with rehash, or serialize all operations if
 	 * the hash-table has CFS_HASH_NO_BKTLOCK */
-	cfs_hash_lock_t	     hs_lock;
+	union cfs_hash_lock	     hs_lock;
 	/** hash operations */
 	struct cfs_hash_ops	*hs_ops;
 	/** hash lock operations */
@@ -276,13 +276,13 @@ typedef struct cfs_hash {
 
 typedef struct cfs_hash_lock_ops {
 	/** lock the hash table */
-	void    (*hs_lock)(cfs_hash_lock_t *lock, int exclusive);
+	void    (*hs_lock)(union cfs_hash_lock *lock, int exclusive);
 	/** unlock the hash table */
-	void    (*hs_unlock)(cfs_hash_lock_t *lock, int exclusive);
+	void    (*hs_unlock)(union cfs_hash_lock *lock, int exclusive);
 	/** lock the hash bucket */
-	void    (*hs_bkt_lock)(cfs_hash_lock_t *lock, int exclusive);
+	void    (*hs_bkt_lock)(union cfs_hash_lock *lock, int exclusive);
 	/** unlock the hash bucket */
-	void    (*hs_bkt_unlock)(cfs_hash_lock_t *lock, int exclusive);
+	void    (*hs_bkt_unlock)(union cfs_hash_lock *lock, int exclusive);
 } cfs_hash_lock_ops_t;
 
 typedef struct cfs_hash_hlist_ops {
diff --git a/drivers/staging/lustre/lustre/libcfs/hash.c b/drivers/staging/lustre/lustre/libcfs/hash.c
index 29ce3807fc88..b0b8e3f81d51 100644
--- a/drivers/staging/lustre/lustre/libcfs/hash.c
+++ b/drivers/staging/lustre/lustre/libcfs/hash.c
@@ -119,25 +119,25 @@ CFS_MODULE_PARM(warn_on_depth, "i", uint, 0644,
 struct cfs_wi_sched *cfs_sched_rehash;
 
 static inline void
-cfs_hash_nl_lock(cfs_hash_lock_t *lock, int exclusive) {}
+cfs_hash_nl_lock(union cfs_hash_lock *lock, int exclusive) {}
 
 static inline void
-cfs_hash_nl_unlock(cfs_hash_lock_t *lock, int exclusive) {}
+cfs_hash_nl_unlock(union cfs_hash_lock *lock, int exclusive) {}
 
 static inline void
-cfs_hash_spin_lock(cfs_hash_lock_t *lock, int exclusive)
+cfs_hash_spin_lock(union cfs_hash_lock *lock, int exclusive)
 {
 	spin_lock(&lock->spin);
 }
 
 static inline void
-cfs_hash_spin_unlock(cfs_hash_lock_t *lock, int exclusive)
+cfs_hash_spin_unlock(union cfs_hash_lock *lock, int exclusive)
 {
 	spin_unlock(&lock->spin);
 }
 
 static inline void
-cfs_hash_rw_lock(cfs_hash_lock_t *lock, int exclusive)
+cfs_hash_rw_lock(union cfs_hash_lock *lock, int exclusive)
 {
 	if (!exclusive)
 		read_lock(&lock->rw);
@@ -146,7 +146,7 @@ cfs_hash_rw_lock(cfs_hash_lock_t *lock, int exclusive)
 }
 
 static inline void
-cfs_hash_rw_unlock(cfs_hash_lock_t *lock, int exclusive)
+cfs_hash_rw_unlock(union cfs_hash_lock *lock, int exclusive)
 {
 	if (!exclusive)
 		read_unlock(&lock->rw);
-- 
cgit 


From fd009035047941fe21622b09665423f1043f0507 Mon Sep 17 00:00:00 2001
From: Joel Fernandes <joelf@ti.com>
Date: Mon, 23 Sep 2013 18:05:13 -0500
Subject: dma: edma: Split out PaRAM set calculations into its own function

PaRAM set calculation is abstracted into its own function to
enable better reuse for other DMA cases such as cyclic. We adapt
the Slave SG case to use the new function.

This provides a much cleaner abstraction to the internals of the
PaRAM set. However, any PaRAM attributes that are not common to
all DMA types must be set separately such as setting of interrupts.
This function takes care of the most-common attributes.

Also added comments clarifying A-sync case calculations.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/edma.c | 198 ++++++++++++++++++++++++++++++++++-------------------
 1 file changed, 126 insertions(+), 72 deletions(-)

diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index 098a8da450f0..e47e3c9e37b2 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -250,6 +250,117 @@ static int edma_control(struct dma_chan *chan, enum dma_ctrl_cmd cmd,
 	return ret;
 }
 
+/*
+ * A PaRAM set configuration abstraction used by other modes
+ * @chan: Channel who's PaRAM set we're configuring
+ * @pset: PaRAM set to initialize and setup.
+ * @src_addr: Source address of the DMA
+ * @dst_addr: Destination address of the DMA
+ * @burst: In units of dev_width, how much to send
+ * @dev_width: How much is the dev_width
+ * @dma_length: Total length of the DMA transfer
+ * @direction: Direction of the transfer
+ */
+static int edma_config_pset(struct dma_chan *chan, struct edmacc_param *pset,
+	dma_addr_t src_addr, dma_addr_t dst_addr, u32 burst,
+	enum dma_slave_buswidth dev_width, unsigned int dma_length,
+	enum dma_transfer_direction direction)
+{
+	struct edma_chan *echan = to_edma_chan(chan);
+	struct device *dev = chan->device->dev;
+	int acnt, bcnt, ccnt, cidx;
+	int src_bidx, dst_bidx, src_cidx, dst_cidx;
+	int absync;
+
+	acnt = dev_width;
+	/*
+	 * If the maxburst is equal to the fifo width, use
+	 * A-synced transfers. This allows for large contiguous
+	 * buffer transfers using only one PaRAM set.
+	 */
+	if (burst == 1) {
+		/*
+		 * For the A-sync case, bcnt and ccnt are the remainder
+		 * and quotient respectively of the division of:
+		 * (dma_length / acnt) by (SZ_64K -1). This is so
+		 * that in case bcnt over flows, we have ccnt to use.
+		 * Note: In A-sync tranfer only, bcntrld is used, but it
+		 * only applies for sg_dma_len(sg) >= SZ_64K.
+		 * In this case, the best way adopted is- bccnt for the
+		 * first frame will be the remainder below. Then for
+		 * every successive frame, bcnt will be SZ_64K-1. This
+		 * is assured as bcntrld = 0xffff in end of function.
+		 */
+		absync = false;
+		ccnt = dma_length / acnt / (SZ_64K - 1);
+		bcnt = dma_length / acnt - ccnt * (SZ_64K - 1);
+		/*
+		 * If bcnt is non-zero, we have a remainder and hence an
+		 * extra frame to transfer, so increment ccnt.
+		 */
+		if (bcnt)
+			ccnt++;
+		else
+			bcnt = SZ_64K - 1;
+		cidx = acnt;
+	} else {
+		/*
+		 * If maxburst is greater than the fifo address_width,
+		 * use AB-synced transfers where A count is the fifo
+		 * address_width and B count is the maxburst. In this
+		 * case, we are limited to transfers of C count frames
+		 * of (address_width * maxburst) where C count is limited
+		 * to SZ_64K-1. This places an upper bound on the length
+		 * of an SG segment that can be handled.
+		 */
+		absync = true;
+		bcnt = burst;
+		ccnt = dma_length / (acnt * bcnt);
+		if (ccnt > (SZ_64K - 1)) {
+			dev_err(dev, "Exceeded max SG segment size\n");
+			return -EINVAL;
+		}
+		cidx = acnt * bcnt;
+	}
+
+	if (direction == DMA_MEM_TO_DEV) {
+		src_bidx = acnt;
+		src_cidx = cidx;
+		dst_bidx = 0;
+		dst_cidx = 0;
+	} else if (direction == DMA_DEV_TO_MEM)  {
+		src_bidx = 0;
+		src_cidx = 0;
+		dst_bidx = acnt;
+		dst_cidx = cidx;
+	} else {
+		dev_err(dev, "%s: direction not implemented yet\n", __func__);
+		return -EINVAL;
+	}
+
+	pset->opt = EDMA_TCC(EDMA_CHAN_SLOT(echan->ch_num));
+	/* Configure A or AB synchronized transfers */
+	if (absync)
+		pset->opt |= SYNCDIM;
+
+	pset->src = src_addr;
+	pset->dst = dst_addr;
+
+	pset->src_dst_bidx = (dst_bidx << 16) | src_bidx;
+	pset->src_dst_cidx = (dst_cidx << 16) | src_cidx;
+
+	pset->a_b_cnt = bcnt << 16 | acnt;
+	pset->ccnt = ccnt;
+	/*
+	 * Only time when (bcntrld) auto reload is required is for
+	 * A-sync case, and in this case, a requirement of reload value
+	 * of SZ_64K-1 only is assured. 'link' is initially set to NULL
+	 * and then later will be populated by edma_execute.
+	 */
+	pset->link_bcntrld = 0xffffffff;
+	return absync;
+}
+
 static struct dma_async_tx_descriptor *edma_prep_slave_sg(
 	struct dma_chan *chan, struct scatterlist *sgl,
 	unsigned int sg_len, enum dma_transfer_direction direction,
@@ -258,23 +369,21 @@ static struct dma_async_tx_descriptor *edma_prep_slave_sg(
 	struct edma_chan *echan = to_edma_chan(chan);
 	struct device *dev = chan->device->dev;
 	struct edma_desc *edesc;
-	dma_addr_t dev_addr;
+	dma_addr_t src_addr = 0, dst_addr = 0;
 	enum dma_slave_buswidth dev_width;
 	u32 burst;
 	struct scatterlist *sg;
-	int acnt, bcnt, ccnt, src, dst, cidx;
-	int src_bidx, dst_bidx, src_cidx, dst_cidx;
-	int i, nslots;
+	int i, nslots, ret;
 
 	if (unlikely(!echan || !sgl || !sg_len))
 		return NULL;
 
 	if (direction == DMA_DEV_TO_MEM) {
-		dev_addr = echan->cfg.src_addr;
+		src_addr = echan->cfg.src_addr;
 		dev_width = echan->cfg.src_addr_width;
 		burst = echan->cfg.src_maxburst;
 	} else if (direction == DMA_MEM_TO_DEV) {
-		dev_addr = echan->cfg.dst_addr;
+		dst_addr = echan->cfg.dst_addr;
 		dev_width = echan->cfg.dst_addr_width;
 		burst = echan->cfg.dst_maxburst;
 	} else {
@@ -313,63 +422,19 @@ static struct dma_async_tx_descriptor *edma_prep_slave_sg(
 
 	/* Configure PaRAM sets for each SG */
 	for_each_sg(sgl, sg, sg_len, i) {
+		/* Get address for each SG */
+		if (direction == DMA_DEV_TO_MEM)
+			dst_addr = sg_dma_address(sg);
+		else
+			src_addr = sg_dma_address(sg);
 
-		acnt = dev_width;
-
-		/*
-		 * If the maxburst is equal to the fifo width, use
-		 * A-synced transfers. This allows for large contiguous
-		 * buffer transfers using only one PaRAM set.
-		 */
-		if (burst == 1) {
-			edesc->absync = false;
-			ccnt = sg_dma_len(sg) / acnt / (SZ_64K - 1);
-			bcnt = sg_dma_len(sg) / acnt - ccnt * (SZ_64K - 1);
-			if (bcnt)
-				ccnt++;
-			else
-				bcnt = SZ_64K - 1;
-			cidx = acnt;
-		/*
-		 * If maxburst is greater than the fifo address_width,
-		 * use AB-synced transfers where A count is the fifo
-		 * address_width and B count is the maxburst. In this
-		 * case, we are limited to transfers of C count frames
-		 * of (address_width * maxburst) where C count is limited
-		 * to SZ_64K-1. This places an upper bound on the length
-		 * of an SG segment that can be handled.
-		 */
-		} else {
-			edesc->absync = true;
-			bcnt = burst;
-			ccnt = sg_dma_len(sg) / (acnt * bcnt);
-			if (ccnt > (SZ_64K - 1)) {
-				dev_err(dev, "Exceeded max SG segment size\n");
-				return NULL;
-			}
-			cidx = acnt * bcnt;
-		}
-
-		if (direction == DMA_MEM_TO_DEV) {
-			src = sg_dma_address(sg);
-			dst = dev_addr;
-			src_bidx = acnt;
-			src_cidx = cidx;
-			dst_bidx = 0;
-			dst_cidx = 0;
-		} else {
-			src = dev_addr;
-			dst = sg_dma_address(sg);
-			src_bidx = 0;
-			src_cidx = 0;
-			dst_bidx = acnt;
-			dst_cidx = cidx;
-		}
+		ret = edma_config_pset(chan, &edesc->pset[i], src_addr,
+				       dst_addr, burst, dev_width,
+				       sg_dma_len(sg), direction);
+		if (ret < 0)
+			return NULL;
 
-		edesc->pset[i].opt = EDMA_TCC(EDMA_CHAN_SLOT(echan->ch_num));
-		/* Configure A or AB synchronized transfers */
-		if (edesc->absync)
-			edesc->pset[i].opt |= SYNCDIM;
+		edesc->absync = ret;
 
 		/* If this is the last in a current SG set of transactions,
 		   enable interrupts so that next set is processed */
@@ -379,17 +444,6 @@ static struct dma_async_tx_descriptor *edma_prep_slave_sg(
 		/* If this is the last set, enable completion interrupt flag */
 		if (i == sg_len - 1)
 			edesc->pset[i].opt |= TCINTEN;
-
-		edesc->pset[i].src = src;
-		edesc->pset[i].dst = dst;
-
-		edesc->pset[i].src_dst_bidx = (dst_bidx << 16) | src_bidx;
-		edesc->pset[i].src_dst_cidx = (dst_cidx << 16) | src_cidx;
-
-		edesc->pset[i].a_b_cnt = bcnt << 16 | acnt;
-		edesc->pset[i].ccnt = ccnt;
-		edesc->pset[i].link_bcntrld = 0xffffffff;
-
 	}
 
 	return vchan_tx_prep(&echan->vchan, &edesc->vdesc, tx_flags);
-- 
cgit 


From 2abd5f1b97fce6e197be01d67a9567c7793c80d3 Mon Sep 17 00:00:00 2001
From: Joel Fernandes <joelf@ti.com>
Date: Mon, 23 Sep 2013 18:05:15 -0500
Subject: dma: edma: Increase maximum SG limit to 20

davinci-pcm uses 16 as the no.of periods. With this, in EDMA we have to
allocate atleast 17 slots: 1 slot for channel, and 16 slots the periods.

Due to this, the MAX_NR_SG limitation causes problems, set it to 20 to make
cyclic DMA work when davinci-pcm is converted to use DMA Engine. Also add
a comment clarifying this.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/edma.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index e47e3c9e37b2..79b046b3e2f0 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -46,8 +46,14 @@
 #define EDMA_CHANS	64
 #endif /* CONFIG_ARCH_DAVINCI_DA8XX */
 
-/* Max of 16 segments per channel to conserve PaRAM slots */
-#define MAX_NR_SG		16
+/*
+ * Max of 20 segments per channel to conserve PaRAM slots
+ * Also note that MAX_NR_SG should be atleast the no.of periods
+ * that are required for ASoC, otherwise DMA prep calls will
+ * fail. Today davinci-pcm is the only user of this driver and
+ * requires atleast 17 slots, so we setup the default to 20.
+ */
+#define MAX_NR_SG		20
 #define EDMA_MAX_SLOTS		MAX_NR_SG
 #define EDMA_DESCRIPTORS	16
 
-- 
cgit 


From 5cf4eb54c2dcae681279a9cfca5498cfe65c5384 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 18 Oct 2013 03:54:16 -0700
Subject: xfrm: use vmalloc_node() for percpu scratches

scratches are per cpu, we can use vmalloc_node() for proper
NUMA affinity.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
 net/xfrm/xfrm_ipcomp.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/net/xfrm/xfrm_ipcomp.c b/net/xfrm/xfrm_ipcomp.c
index 2906d520eea7..b943c7fc5ed2 100644
--- a/net/xfrm/xfrm_ipcomp.c
+++ b/net/xfrm/xfrm_ipcomp.c
@@ -220,8 +220,8 @@ static void ipcomp_free_scratches(void)
 
 static void * __percpu *ipcomp_alloc_scratches(void)
 {
-	int i;
 	void * __percpu *scratches;
+	int i;
 
 	if (ipcomp_scratch_users++)
 		return ipcomp_scratches;
@@ -233,7 +233,9 @@ static void * __percpu *ipcomp_alloc_scratches(void)
 	ipcomp_scratches = scratches;
 
 	for_each_possible_cpu(i) {
-		void *scratch = vmalloc(IPCOMP_SCRATCH_SIZE);
+		void *scratch;
+
+		scratch = vmalloc_node(IPCOMP_SCRATCH_SIZE, cpu_to_node(i));
 		if (!scratch)
 			return NULL;
 		*per_cpu_ptr(scratches, i) = scratch;
-- 
cgit 


From 4d53eff48b5f03ce67f4f301d6acca1d2145cb7a Mon Sep 17 00:00:00 2001
From: Steffen Klassert <steffen.klassert@secunet.com>
Date: Wed, 16 Oct 2013 13:42:46 +0200
Subject: xfrm: Don't queue retransmitted packets if the original is still on
 the host

It does not make sense to queue retransmitted packets if the
original packet is still in some queue of this host. So add
a check to xdst_queue_output() and drop the packet if the
original packet is not yet sent.

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Acked-by: Eric Dumazet <edumazet@google.com>
---
 net/xfrm/xfrm_policy.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/net/xfrm/xfrm_policy.c b/net/xfrm/xfrm_policy.c
index ed38d5d81f9e..e09edfcf1b79 100644
--- a/net/xfrm/xfrm_policy.c
+++ b/net/xfrm/xfrm_policy.c
@@ -1832,6 +1832,13 @@ static int xdst_queue_output(struct sk_buff *skb)
 	struct dst_entry *dst = skb_dst(skb);
 	struct xfrm_dst *xdst = (struct xfrm_dst *) dst;
 	struct xfrm_policy_queue *pq = &xdst->pols[0]->polq;
+	const struct sk_buff *fclone = skb + 1;
+
+	if (unlikely(skb->fclone == SKB_FCLONE_ORIG &&
+		     fclone->fclone == SKB_FCLONE_CLONE)) {
+		kfree_skb(skb);
+		return 0;
+	}
 
 	if (pq->hold_queue.qlen > XFRM_MAX_QUEUE_LEN) {
 		kfree_skb(skb);
-- 
cgit 


From 59fd3033b55642da97b4ecde0c85de78d7229675 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Mon, 21 Oct 2013 09:33:49 +0100
Subject: ARM: fix build errors caused by selection of errata 798181

Several configurations are selecting errata 798181 without SMP
being selected.  This causes a warning from Kconfig:

warning: (ARCH_HIGHBANK && ARCH_KEYSTONE && SOC_OMAP5 && ARCH_TEGRA_114_SOC) selects ARM_ERRATA_798181 which has unmet direct dependencies (CPU_V7 && SMP)

The dependencies are compile time dependencies; select violates these,
resulting in:

arch/arm/kernel/built-in.o: In function `setup_processor':
psci.c:(.init.text+0x808): undefined reference to `erratum_a15_798181_init'

at build time.  Fix this by fixing the select statements for Tegra and
Highbank.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-highbank/Kconfig | 2 +-
 arch/arm/mach-tegra/Kconfig    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-highbank/Kconfig b/arch/arm/mach-highbank/Kconfig
index 8e8437dea3ce..e2ca238cf0ea 100644
--- a/arch/arm/mach-highbank/Kconfig
+++ b/arch/arm/mach-highbank/Kconfig
@@ -8,7 +8,7 @@ config ARCH_HIGHBANK
 	select ARM_AMBA
 	select ARM_ERRATA_764369
 	select ARM_ERRATA_775420
-	select ARM_ERRATA_798181
+	select ARM_ERRATA_798181 if SMP
 	select ARM_GIC
 	select ARM_TIMER_SP804
 	select CACHE_L2X0
diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index 67a76f2dfb9f..f26428d8b62a 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -54,7 +54,7 @@ config ARCH_TEGRA_3x_SOC
 config ARCH_TEGRA_114_SOC
 	bool "Enable support for Tegra114 family"
 	select HAVE_ARM_ARCH_TIMER
-	select ARM_ERRATA_798181
+	select ARM_ERRATA_798181 if SMP
 	select ARM_L1_CACHE_SHIFT_6
 	select PINCTRL_TEGRA114
 	help
-- 
cgit 


From 79845c662eeb95c9a180b9bd0d3ad848ee65b94c Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 21 Oct 2013 11:33:35 +0200
Subject: cfg80211: fix scheduled scan pointer access

Since rdev->sched_scan_req is dereferenced outside the
lock protecting it, this might be done at the wrong
time, causing crashes. Move the dereference to where
it should be - inside the RTNL locked section.

Cc: stable@vger.kernel.org [3.8+]
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/wireless/scan.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/wireless/scan.c b/net/wireless/scan.c
index eeb71480f1af..d4397eba5408 100644
--- a/net/wireless/scan.c
+++ b/net/wireless/scan.c
@@ -254,10 +254,10 @@ void __cfg80211_sched_scan_results(struct work_struct *wk)
 	rdev = container_of(wk, struct cfg80211_registered_device,
 			    sched_scan_results_wk);
 
-	request = rdev->sched_scan_req;
-
 	rtnl_lock();
 
+	request = rdev->sched_scan_req;
+
 	/* we don't have sched_scan_req anymore if the scan is stopping */
 	if (request) {
 		if (request->flags & NL80211_SCAN_FLAG_FLUSH) {
-- 
cgit 


From cc1a95d9f6423ced191b6f264e9657d98844ea0d Mon Sep 17 00:00:00 2001
From: Mengdong Lin <mengdong.lin@intel.com>
Date: Sun, 20 Oct 2013 23:03:31 -0400
Subject: ALSA: hda - add codec ID for Valleyview2 display codec

This patch adds codec ID (0x80862882) and module alias for
Valleyview2 display codec.

Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 804adb872e63..fbd18599b0f9 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -2779,6 +2779,7 @@ static const struct hda_codec_preset snd_hda_preset_hdmi[] = {
 { .id = 0x80862806, .name = "PantherPoint HDMI", .patch = patch_generic_hdmi },
 { .id = 0x80862807, .name = "Haswell HDMI",	.patch = patch_generic_hdmi },
 { .id = 0x80862880, .name = "CedarTrail HDMI",	.patch = patch_generic_hdmi },
+{ .id = 0x80862882, .name = "Valleyview2 HDMI",	.patch = patch_generic_hdmi },
 { .id = 0x808629fb, .name = "Crestline HDMI",	.patch = patch_generic_hdmi },
 {} /* terminator */
 };
@@ -2833,6 +2834,7 @@ MODULE_ALIAS("snd-hda-codec-id:80862805");
 MODULE_ALIAS("snd-hda-codec-id:80862806");
 MODULE_ALIAS("snd-hda-codec-id:80862807");
 MODULE_ALIAS("snd-hda-codec-id:80862880");
+MODULE_ALIAS("snd-hda-codec-id:80862882");
 MODULE_ALIAS("snd-hda-codec-id:808629fb");
 
 MODULE_LICENSE("GPL");
-- 
cgit 


From c532a58b0fb4b2b3309e6b87bafb44f36808aa6f Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Thu, 17 Oct 2013 11:21:11 -0700
Subject: cfg80211: fix DFS channel recovery timeout

The timeout was not properly converted from msecs
to jiffies. As a result channel transition to
NL80211_DFS_USABLE was delayed depending on
CONFIG_HZ configuration, e.g. HZ=100 would delay
the NOP from 30 minutes to 300 minutes.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/wireless/mlme.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index 8d49c1ce3dea..edfe6de00e7b 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -707,8 +707,8 @@ void cfg80211_dfs_channels_update_work(struct work_struct *work)
 			if (c->dfs_state != NL80211_DFS_UNAVAILABLE)
 				continue;
 
-			timeout = c->dfs_state_entered +
-				  IEEE80211_DFS_MIN_NOP_TIME_MS;
+			timeout = c->dfs_state_entered + msecs_to_jiffies(
+					IEEE80211_DFS_MIN_NOP_TIME_MS);
 
 			if (time_after_eq(jiffies, timeout)) {
 				c->dfs_state = NL80211_DFS_USABLE;
-- 
cgit 


From bbe09bbcf4454e826e3fb08e87d81f32c0030658 Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Thu, 17 Oct 2013 11:21:12 -0700
Subject: cfg80211: update dfs_state_entered upon dfs_state change

The timestamp wasn't updated after transitioning
to the NL80211_DFS_USABLE state after NOP time.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/wireless/mlme.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c
index edfe6de00e7b..6a6b1c8e907d 100644
--- a/net/wireless/mlme.c
+++ b/net/wireless/mlme.c
@@ -712,6 +712,8 @@ void cfg80211_dfs_channels_update_work(struct work_struct *work)
 
 			if (time_after_eq(jiffies, timeout)) {
 				c->dfs_state = NL80211_DFS_USABLE;
+				c->dfs_state_entered = jiffies;
+
 				cfg80211_chandef_create(&chandef, c,
 							NL80211_CHAN_NO_HT);
 
-- 
cgit 


From 547003b114bcb96555cf73ec7f45ab64b2dcaf67 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Mon, 21 Oct 2013 16:51:53 +0300
Subject: Bluetooth: Fix enabling fast connectable on LE-only controllers

The current "fast connectable" feature is BR/EDR-only, so add a proper
check for BR/EDR support before proceeding with the associated HCI
commands.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/mgmt.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index bd91ee5f130c..074d83690a41 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -1307,6 +1307,9 @@ static void write_fast_connectable(struct hci_request *req, bool enable)
 	struct hci_cp_write_page_scan_activity acp;
 	u8 type;
 
+	if (!test_bit(HCI_BREDR_ENABLED, &hdev->dev_flags))
+		return;
+
 	if (hdev->hci_ver < BLUETOOTH_VER_1_2)
 		return;
 
-- 
cgit 


From dd44bc6be05e4a948124053c8105cfa581177554 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 18 Oct 2013 15:29:01 +0300
Subject: perf evsel: Add missing decrement in id sample parsing

The final array decrement in id sample parsing is missing, which may
trip up the next person adding a sample format, so add it in.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1382099356-4918-5-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evsel.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 291b18ac236a..ec0cc1e21c62 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1218,6 +1218,7 @@ static int perf_evsel__parse_id_sample(const struct perf_evsel *evsel,
 
 		sample->pid = u.val32[0];
 		sample->tid = u.val32[1];
+		array--;
 	}
 
 	return 0;
-- 
cgit 


From 4f624685f92719565981eb6f8d9195bb578522a3 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 18 Oct 2013 15:29:00 +0300
Subject: perf record: Improve write_output error message

Improve the error message from write_output() to say what failed to
write and give the error number.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1382099356-4918-4-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-record.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 92ca5419073b..d269dfa3ab08 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -88,7 +88,7 @@ static int write_output(struct perf_record *rec, void *buf, size_t size)
 		int ret = write(rec->output, buf, size);
 
 		if (ret < 0) {
-			pr_err("failed to write\n");
+			pr_err("failed to write perf data, error: %m\n");
 			return -1;
 		}
 
-- 
cgit 


From 8c16b649606ff9f6d742ad6f71c76fc0ee996c8e Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 18 Oct 2013 15:29:02 +0300
Subject: perf session: Add missing sample flush for piped events

Piped events can be sorted so a final flush is needed.

Add that and remove a redundant 'err = 0'.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1382099356-4918-6-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/session.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index d1e449534b33..d51e62db96a7 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1263,7 +1263,9 @@ more:
 	if (!session_done())
 		goto more;
 done:
-	err = 0;
+	/* do the final flush for ordered samples */
+	self->ordered_samples.next_flush = ULLONG_MAX;
+	err = flush_sample_queue(self, tool);
 out_err:
 	free(buf);
 	perf_session__warn_about_errors(self, tool);
@@ -1392,13 +1394,13 @@ more:
 				    "Processing events...");
 	}
 
-	err = 0;
 	if (session_done())
-		goto out_err;
+		goto out;
 
 	if (file_pos < file_size)
 		goto more;
 
+out:
 	/* do the final flush for ordered samples */
 	session->ordered_samples.next_flush = ULLONG_MAX;
 	err = flush_sample_queue(session, tool);
-- 
cgit 


From 7db5952846dfa015d74e64b5e8656acac979490b Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 18 Oct 2013 15:29:03 +0300
Subject: perf session: Add missing members to perf_event__attr_swap()

The perf_event__attr_swap() method needs to swap all members of struct
perf_event_attr.  Add missing ones.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1382099356-4918-7-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/session.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index d51e62db96a7..d4559ca08ca6 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -453,6 +453,9 @@ void perf_event__attr_swap(struct perf_event_attr *attr)
 	attr->bp_type		= bswap_32(attr->bp_type);
 	attr->bp_addr		= bswap_64(attr->bp_addr);
 	attr->bp_len		= bswap_64(attr->bp_len);
+	attr->branch_sample_type = bswap_64(attr->branch_sample_type);
+	attr->sample_regs_user	 = bswap_64(attr->sample_regs_user);
+	attr->sample_stack_user  = bswap_32(attr->sample_stack_user);
 
 	swap_bitfield((u8 *) (&attr->read_format + 1), sizeof(u64));
 }
-- 
cgit 


From 2af68ef50c6afc1632edc984e9c834545d90f597 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 18 Oct 2013 15:29:07 +0300
Subject: perf evlist: Fix 32-bit build error

util/evlist.c: In function 'perf_evlist__mmap':
util/evlist.c:772:2: error: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t' [-Werror=format]
cc1: all warnings being treated as errors

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1382099356-4918-11-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evlist.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 0b5425b4d8d6..07ba0a43afd2 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -769,7 +769,7 @@ int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
 
 	evlist->overwrite = overwrite;
 	evlist->mmap_len = perf_evlist__mmap_size(pages);
-	pr_debug("mmap size %luB\n", evlist->mmap_len);
+	pr_debug("mmap size %zuB\n", evlist->mmap_len);
 	mask = evlist->mmap_len - page_size - 1;
 
 	list_for_each_entry(evsel, &evlist->entries, node) {
-- 
cgit 


From 9402802a416c96b48b2bd9331c070ba2d7550b36 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 18 Oct 2013 15:29:08 +0300
Subject: perf tools: Fix test_on_exit for 32-bit build

builtin-record.c:42:12: error: static declaration of 'on_exit' follows non-static declaration
In file included from util/util.h:51:0,
                 from builtin.h:4,
                 from builtin-record.c:8:
/usr/include/stdlib.h:536:12: note: previous declaration of 'on_exit' was here

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1382099356-4918-12-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/config/feature-checks/test-on-exit.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/config/feature-checks/test-on-exit.c b/tools/perf/config/feature-checks/test-on-exit.c
index 8f64ed3a58d9..8e88b16e6ded 100644
--- a/tools/perf/config/feature-checks/test-on-exit.c
+++ b/tools/perf/config/feature-checks/test-on-exit.c
@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <stdlib.h>
 
 static void exit_fn(int status, void *__data)
 {
-- 
cgit 


From 2100f778d44b9c25bd13d38c24a999e2caf1ae3d Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 18 Oct 2013 15:29:09 +0300
Subject: perf tools: Fix bench/numa.c for 32-bit build

bench/numa.c: In function 'worker_thread':
bench/numa.c:1123:20: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
bench/numa.c:1171:6: error: format '%lx' expects argument of type 'long unsigned int', but argument 5 has type 'u64' [-Werror=format]
cc1: all warnings being treated as errors

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1382099356-4918-13-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/bench/numa.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
index 64fa01cfc34d..d4c83c60b9b2 100644
--- a/tools/perf/bench/numa.c
+++ b/tools/perf/bench/numa.c
@@ -1120,7 +1120,7 @@ static void *worker_thread(void *__tdata)
 		/* Check whether our max runtime timed out: */
 		if (g->p.nr_secs) {
 			timersub(&stop, &start0, &diff);
-			if (diff.tv_sec >= g->p.nr_secs) {
+			if ((u32)diff.tv_sec >= g->p.nr_secs) {
 				g->stop_work = true;
 				break;
 			}
@@ -1167,7 +1167,7 @@ static void *worker_thread(void *__tdata)
 			runtime_ns_max += diff.tv_usec * 1000;
 
 			if (details >= 0) {
-				printf(" #%2d / %2d: %14.2lf nsecs/op [val: %016lx]\n",
+				printf(" #%2d / %2d: %14.2lf nsecs/op [val: %016"PRIx64"]\n",
 					process_nr, thread_nr, runtime_ns_max / bytes_done, val);
 			}
 			fflush(stdout);
-- 
cgit 


From c83fa7f2549cb60bc4d429de31096546f659ce6d Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 18 Oct 2013 15:29:12 +0300
Subject: perf evlist: Fix perf_evlist__mmap comments

Put the comments into the correct kernel-doc format and correct
reference to perf_evlist__read_on_cpu() which should be
perf_evlist__mmap_read().

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1382099356-4918-16-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evlist.c | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 07ba0a43afd2..acef94a5ff9e 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -738,20 +738,17 @@ int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str,
 	return 0;
 }
 
-/** perf_evlist__mmap - Create per cpu maps to receive events
- *
- * @evlist - list of events
- * @pages - map length in pages
- * @overwrite - overwrite older events?
- *
- * If overwrite is false the user needs to signal event consuption using:
- *
- *	struct perf_mmap *m = &evlist->mmap[cpu];
- *	unsigned int head = perf_mmap__read_head(m);
+/**
+ * perf_evlist__mmap - Create mmaps to receive events.
+ * @evlist: list of events
+ * @pages: map length in pages
+ * @overwrite: overwrite older events?
  *
- *	perf_mmap__write_tail(m, head)
+ * If @overwrite is %false the user needs to signal event consumption using
+ * perf_mmap__write_tail().  Using perf_evlist__mmap_read() does this
+ * automatically.
  *
- * Using perf_evlist__read_on_cpu does this automatically.
+ * Return: %0 on success, negative error code otherwise.
  */
 int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
 		      bool overwrite)
-- 
cgit 


From 04e213148c434544e3aa88d227b5375fd375738b Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 18 Oct 2013 15:29:13 +0300
Subject: perf evlist: Factor out duplicated mmap code

The same code is used in perf_evlist__mmap_per_cpu() and
perf_evlist__mmap_per_thread().

Factor it out into a separate function perf_evlist__mmap_per_evsel().

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1382099356-4918-17-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evlist.c | 73 ++++++++++++++++++++++++------------------------
 1 file changed, 36 insertions(+), 37 deletions(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index acef94a5ff9e..85c4c80bcac8 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -608,9 +608,36 @@ static int __perf_evlist__mmap(struct perf_evlist *evlist,
 	return 0;
 }
 
-static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist, int prot, int mask)
+static int perf_evlist__mmap_per_evsel(struct perf_evlist *evlist, int idx,
+				       int prot, int mask, int cpu, int thread,
+				       int *output)
 {
 	struct perf_evsel *evsel;
+
+	list_for_each_entry(evsel, &evlist->entries, node) {
+		int fd = FD(evsel, cpu, thread);
+
+		if (*output == -1) {
+			*output = fd;
+			if (__perf_evlist__mmap(evlist, idx, prot, mask,
+						*output) < 0)
+				return -1;
+		} else {
+			if (ioctl(fd, PERF_EVENT_IOC_SET_OUTPUT, *output) != 0)
+				return -1;
+		}
+
+		if ((evsel->attr.read_format & PERF_FORMAT_ID) &&
+		    perf_evlist__id_add_fd(evlist, evsel, cpu, thread, fd) < 0)
+			return -1;
+	}
+
+	return 0;
+}
+
+static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist, int prot,
+				     int mask)
+{
 	int cpu, thread;
 	int nr_cpus = cpu_map__nr(evlist->cpus);
 	int nr_threads = thread_map__nr(evlist->threads);
@@ -620,23 +647,9 @@ static int perf_evlist__mmap_per_cpu(struct perf_evlist *evlist, int prot, int m
 		int output = -1;
 
 		for (thread = 0; thread < nr_threads; thread++) {
-			list_for_each_entry(evsel, &evlist->entries, node) {
-				int fd = FD(evsel, cpu, thread);
-
-				if (output == -1) {
-					output = fd;
-					if (__perf_evlist__mmap(evlist, cpu,
-								prot, mask, output) < 0)
-						goto out_unmap;
-				} else {
-					if (ioctl(fd, PERF_EVENT_IOC_SET_OUTPUT, output) != 0)
-						goto out_unmap;
-				}
-
-				if ((evsel->attr.read_format & PERF_FORMAT_ID) &&
-				    perf_evlist__id_add_fd(evlist, evsel, cpu, thread, fd) < 0)
-					goto out_unmap;
-			}
+			if (perf_evlist__mmap_per_evsel(evlist, cpu, prot, mask,
+							cpu, thread, &output))
+				goto out_unmap;
 		}
 	}
 
@@ -648,9 +661,9 @@ out_unmap:
 	return -1;
 }
 
-static int perf_evlist__mmap_per_thread(struct perf_evlist *evlist, int prot, int mask)
+static int perf_evlist__mmap_per_thread(struct perf_evlist *evlist, int prot,
+					int mask)
 {
-	struct perf_evsel *evsel;
 	int thread;
 	int nr_threads = thread_map__nr(evlist->threads);
 
@@ -658,23 +671,9 @@ static int perf_evlist__mmap_per_thread(struct perf_evlist *evlist, int prot, in
 	for (thread = 0; thread < nr_threads; thread++) {
 		int output = -1;
 
-		list_for_each_entry(evsel, &evlist->entries, node) {
-			int fd = FD(evsel, 0, thread);
-
-			if (output == -1) {
-				output = fd;
-				if (__perf_evlist__mmap(evlist, thread,
-							prot, mask, output) < 0)
-					goto out_unmap;
-			} else {
-				if (ioctl(fd, PERF_EVENT_IOC_SET_OUTPUT, output) != 0)
-					goto out_unmap;
-			}
-
-			if ((evsel->attr.read_format & PERF_FORMAT_ID) &&
-			    perf_evlist__id_add_fd(evlist, evsel, 0, thread, fd) < 0)
-				goto out_unmap;
-		}
+		if (perf_evlist__mmap_per_evsel(evlist, thread, prot, mask, 0,
+						thread, &output))
+			goto out_unmap;
 	}
 
 	return 0;
-- 
cgit 


From b55447a7301b12d509df4b2909ed38d125ad83d4 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 21 Oct 2013 16:31:45 +0200
Subject: ALSA: hda - Fix typos in patch_hdmi.c

... which was introduced by the previous commit a4e9a38b, causing
build errors without CONFIG_PROC_FS.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index fbd18599b0f9..0f9b10322b2a 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -539,12 +539,12 @@ static void eld_proc_free(struct hdmi_spec_per_pin *per_pin)
 	}
 }
 #else
-static inline int snd_hda_eld_proc_new(struct hdmi_spec_per_pin *per_pin,
-				       int index)
+static inline int eld_proc_new(struct hdmi_spec_per_pin *per_pin,
+			       int index)
 {
 	return 0;
 }
-static inline void snd_hda_eld_proc_free(struct hdmi_spec_per_pin *per_pin)
+static inline void eld_proc_free(struct hdmi_spec_per_pin *per_pin)
 {
 }
 #endif
-- 
cgit 


From 8776a165d152d57a3a58895d55204614abe93d7f Mon Sep 17 00:00:00 2001
From: David Cohen <david.a.cohen@linux.intel.com>
Date: Tue, 1 Oct 2013 13:18:15 -0700
Subject: mmc: sdhci-pci: add Intel Merrifield support

Implement initial SDHCI Intel Merrifield support.  This patch is based
on previous one from Yunpeng Gao <yunpeng.gao@intel.com>.

Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci-pci.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index d7d6bc8968d2..06f026a537b2 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -37,6 +37,7 @@
 #define PCI_DEVICE_ID_INTEL_BYT_SDIO	0x0f15
 #define PCI_DEVICE_ID_INTEL_BYT_SD	0x0f16
 #define PCI_DEVICE_ID_INTEL_BYT_EMMC2	0x0f50
+#define PCI_DEVICE_ID_INTEL_MRFL_MMC	0x1190
 
 /*
  * PCI registers
@@ -356,6 +357,28 @@ static const struct sdhci_pci_fixes sdhci_intel_byt_sd = {
 	.allow_runtime_pm = true,
 };
 
+/* Define Host controllers for Intel Merrifield platform */
+#define INTEL_MRFL_EMMC_0	0
+#define INTEL_MRFL_EMMC_1	1
+
+static int intel_mrfl_mmc_probe_slot(struct sdhci_pci_slot *slot)
+{
+	if ((PCI_FUNC(slot->chip->pdev->devfn) != INTEL_MRFL_EMMC_0) &&
+	    (PCI_FUNC(slot->chip->pdev->devfn) != INTEL_MRFL_EMMC_1))
+		/* SD support is not ready yet */
+		return -ENODEV;
+
+	slot->host->mmc->caps |= MMC_CAP_8_BIT_DATA | MMC_CAP_NONREMOVABLE |
+				 MMC_CAP_1_8V_DDR;
+
+	return 0;
+}
+
+static const struct sdhci_pci_fixes sdhci_intel_mrfl_mmc = {
+	.quirks		= SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
+	.probe_slot	= intel_mrfl_mmc_probe_slot,
+};
+
 /* O2Micro extra registers */
 #define O2_SD_LOCK_WP		0xD3
 #define O2_SD_MULTI_VCC3V	0xEE
@@ -939,6 +962,13 @@ static const struct pci_device_id pci_ids[] = {
 		.driver_data	= (kernel_ulong_t)&sdhci_intel_byt_emmc,
 	},
 
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_MRFL_MMC,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.driver_data	= (kernel_ulong_t)&sdhci_intel_mrfl_mmc,
+	},
 	{
 		.vendor		= PCI_VENDOR_ID_O2,
 		.device		= PCI_DEVICE_ID_O2_8120,
-- 
cgit 


From 7b2399034af31d934ce3efc898e023e027f110bd Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Thu, 3 Oct 2013 17:04:40 +0800
Subject: mmc: wmt-sdmmc: Simplify wmt_set_sd_power implementation

Simplify the code to set/clear BM_SD_OFF bit:

          | power_inverted: 0  | power_inverted: 1
-------------------------------------------------
enable: 0 | SET BM_SD_OFF      | CLEAR BM_SD_OFF
-------------------------------------------------
enable: 1 | CLEAR BM_SD_OFF    | SET BM_SD_OFF

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/wmt-sdmmc.c | 30 ++++++++----------------------
 1 file changed, 8 insertions(+), 22 deletions(-)

diff --git a/drivers/mmc/host/wmt-sdmmc.c b/drivers/mmc/host/wmt-sdmmc.c
index 34231d5168fc..57858efb3762 100644
--- a/drivers/mmc/host/wmt-sdmmc.c
+++ b/drivers/mmc/host/wmt-sdmmc.c
@@ -212,28 +212,14 @@ struct wmt_mci_priv {
 
 static void wmt_set_sd_power(struct wmt_mci_priv *priv, int enable)
 {
-	u32 reg_tmp;
-	if (enable) {
-		if (priv->power_inverted) {
-			reg_tmp = readb(priv->sdmmc_base + SDMMC_BUSMODE);
-			writeb(reg_tmp | BM_SD_OFF,
-			       priv->sdmmc_base + SDMMC_BUSMODE);
-		} else {
-			reg_tmp = readb(priv->sdmmc_base + SDMMC_BUSMODE);
-			writeb(reg_tmp & (~BM_SD_OFF),
-			       priv->sdmmc_base + SDMMC_BUSMODE);
-		}
-	} else {
-		if (priv->power_inverted) {
-			reg_tmp = readb(priv->sdmmc_base + SDMMC_BUSMODE);
-			writeb(reg_tmp & (~BM_SD_OFF),
-			       priv->sdmmc_base + SDMMC_BUSMODE);
-		} else {
-			reg_tmp = readb(priv->sdmmc_base + SDMMC_BUSMODE);
-			writeb(reg_tmp | BM_SD_OFF,
-			       priv->sdmmc_base + SDMMC_BUSMODE);
-		}
-	}
+	u32 reg_tmp = readb(priv->sdmmc_base + SDMMC_BUSMODE);
+
+	if (enable ^ priv->power_inverted)
+		reg_tmp &= ~BM_SD_OFF;
+	else
+		reg_tmp |= BM_SD_OFF;
+
+	writeb(reg_tmp, priv->sdmmc_base + SDMMC_BUSMODE);
 }
 
 static void wmt_mci_read_response(struct mmc_host *mmc)
-- 
cgit 


From e69e4dff1c0228294572e27df7b2fc4c0b518632 Mon Sep 17 00:00:00 2001
From: Sonic Zhang <sonic.zhang@analog.com>
Date: Wed, 16 Oct 2013 13:42:05 +0800
Subject: mmc: bfin_sdh: Forgot to write SDH_CFG register in function set_ios.

The DMA operation in SDIO CMD53 may fail because the 4 bit SDIO mode
is not set up correctly on BF548.
Remove 2 blank lines as well.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/bfin_sdh.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/mmc/host/bfin_sdh.c b/drivers/mmc/host/bfin_sdh.c
index 94fae2f1baaf..e62c5bc7fa31 100644
--- a/drivers/mmc/host/bfin_sdh.c
+++ b/drivers/mmc/host/bfin_sdh.c
@@ -391,6 +391,7 @@ static void sdh_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 		/* Disable 4 bit SDIO */
 		cfg &= ~SD4E;
 	}
+	bfin_write_SDH_CFG(cfg);
 
 	host->power_mode = ios->power_mode;
 #ifndef RSI_BLKSZ
@@ -415,7 +416,6 @@ static void sdh_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 		cfg &= ~SD_CMD_OD;
 # endif
 
-
 	if (ios->power_mode != MMC_POWER_OFF)
 		cfg |= PWR_ON;
 	else
@@ -433,7 +433,6 @@ static void sdh_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 		clk_ctl |= CLK_E;
 		host->clk_div = clk_div;
 		bfin_write_SDH_CLK_CTL(clk_ctl);
-
 	} else
 		sdh_stop_clock(host);
 
-- 
cgit 


From 31fbb3013506e58320fcea2ce07543b2a22c5ee0 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Thu, 17 Oct 2013 15:19:44 +0800
Subject: mmc: sdhci-esdhc-imx: add flag ESDHC_FLAG_ENGCM07207

Just like the use of the flag ESDHC_FLAG_MULTIBLK_NO_INT, let's add
another flag ESDHC_FLAG_ENGCM07207 to enable the workaround for errata
ENGcm07207 and set the flag for i.MX25 and i.MX35 ESDHC.

While at it, let's use BIT() macro for ESDHC_FLAG_MULTIBLK_NO_INT as
well.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Dong Aisheng <b29396@freescale.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index b9899e9c684a..d844be862cfa 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -83,7 +83,12 @@
  * As a result, the TC flag is not asserted and SW  received timeout
  * exeception. Bit1 of Vendor Spec registor is used to fix it.
  */
-#define ESDHC_FLAG_MULTIBLK_NO_INT	(1 << 1)
+#define ESDHC_FLAG_MULTIBLK_NO_INT	BIT(1)
+/*
+ * The flag enables the workaround for ESDHC errata ENGcm07207 which
+ * affects i.MX25 and i.MX35.
+ */
+#define ESDHC_FLAG_ENGCM07207		BIT(2)
 
 enum imx_esdhc_type {
 	IMX25_ESDHC,
@@ -857,6 +862,9 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
 	imx_data->devtype = pdev->id_entry->driver_data;
 	pltfm_host->priv = imx_data;
 
+	if (is_imx25_esdhc(imx_data) || is_imx35_esdhc(imx_data))
+		imx_data->flags |= ESDHC_FLAG_ENGCM07207;
+
 	imx_data->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
 	if (IS_ERR(imx_data->clk_ipg)) {
 		err = PTR_ERR(imx_data->clk_ipg);
@@ -897,7 +905,7 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
 
 	host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;
 
-	if (is_imx25_esdhc(imx_data) || is_imx35_esdhc(imx_data))
+	if (imx_data->flags & ESDHC_FLAG_ENGCM07207)
 		/* Fix errata ENGcm07207 present on i.MX25 and i.MX35 */
 		host->quirks |= SDHCI_QUIRK_NO_MULTIBLOCK
 			| SDHCI_QUIRK_BROKEN_ADMA;
-- 
cgit 


From 9d61c0092ca1abe93853d1b8dfeb5525b6cf3ddc Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Thu, 17 Oct 2013 15:19:45 +0800
Subject: mmc: sdhci-esdhc-imx: add flag ESDHC_FLAG_USDHC

Add flag ESDHC_FLAG_USDHC to tell that the ESDHC is actually an USDHC
block, and replace the is_imx6q_usdhc() occurrences with inline function
esdhc_is_usdhc() which checks the flag.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Dong Aisheng <b29396@freescale.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 37 +++++++++++++++++++++++++------------
 1 file changed, 25 insertions(+), 12 deletions(-)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index d844be862cfa..2421ac7fa6bf 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -89,6 +89,11 @@
  * affects i.MX25 and i.MX35.
  */
 #define ESDHC_FLAG_ENGCM07207		BIT(2)
+/*
+ * The flag tells that the ESDHC controller is an USDHC block that is
+ * integrated on the i.MX6 series.
+ */
+#define ESDHC_FLAG_USDHC		BIT(3)
 
 enum imx_esdhc_type {
 	IMX25_ESDHC,
@@ -175,6 +180,11 @@ static inline int is_imx6q_usdhc(struct pltfm_imx_data *data)
 	return data->devtype == IMX6Q_USDHC;
 }
 
+static inline int esdhc_is_usdhc(struct pltfm_imx_data *data)
+{
+	return !!(data->flags & ESDHC_FLAG_USDHC);
+}
+
 static inline void esdhc_clrset_le(struct sdhci_host *host, u32 mask, u32 val, int reg)
 {
 	void __iomem *base = host->ioaddr + (reg & ~0x3);
@@ -213,11 +223,11 @@ static u32 esdhc_readl_le(struct sdhci_host *host, int reg)
 		}
 	}
 
-	if (unlikely(reg == SDHCI_CAPABILITIES_1) && is_imx6q_usdhc(imx_data))
+	if (unlikely(reg == SDHCI_CAPABILITIES_1) && esdhc_is_usdhc(imx_data))
 		val = SDHCI_SUPPORT_DDR50 | SDHCI_SUPPORT_SDR104
 				| SDHCI_SUPPORT_SDR50;
 
-	if (unlikely(reg == SDHCI_MAX_CURRENT) && is_imx6q_usdhc(imx_data)) {
+	if (unlikely(reg == SDHCI_MAX_CURRENT) && esdhc_is_usdhc(imx_data)) {
 		val = 0;
 		val |= 0xFF << SDHCI_MAX_CURRENT_330_SHIFT;
 		val |= 0xFF << SDHCI_MAX_CURRENT_300_SHIFT;
@@ -307,7 +317,7 @@ static u16 esdhc_readw_le(struct sdhci_host *host, int reg)
 
 	if (unlikely(reg == SDHCI_HOST_VERSION)) {
 		reg ^= 2;
-		if (is_imx6q_usdhc(imx_data)) {
+		if (esdhc_is_usdhc(imx_data)) {
 			/*
 			 * The usdhc register returns a wrong host version.
 			 * Correct it here.
@@ -321,7 +331,7 @@ static u16 esdhc_readw_le(struct sdhci_host *host, int reg)
 		if (val & ESDHC_VENDOR_SPEC_VSELECT)
 			ret |= SDHCI_CTRL_VDD_180;
 
-		if (is_imx6q_usdhc(imx_data)) {
+		if (esdhc_is_usdhc(imx_data)) {
 			val = readl(host->ioaddr + ESDHC_MIX_CTRL);
 			if (val & ESDHC_MIX_CTRL_EXE_TUNE)
 				ret |= SDHCI_CTRL_EXEC_TUNING;
@@ -379,7 +389,7 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg)
 			writel(v, host->ioaddr + ESDHC_VENDOR_SPEC);
 		}
 
-		if (is_imx6q_usdhc(imx_data)) {
+		if (esdhc_is_usdhc(imx_data)) {
 			u32 m = readl(host->ioaddr + ESDHC_MIX_CTRL);
 			/* Swap AC23 bit */
 			if (val & SDHCI_TRNS_AUTO_CMD23) {
@@ -404,7 +414,7 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg)
 		    (imx_data->flags & ESDHC_FLAG_MULTIBLK_NO_INT))
 			imx_data->multiblock_status = MULTIBLK_IN_PROCESS;
 
-		if (is_imx6q_usdhc(imx_data))
+		if (esdhc_is_usdhc(imx_data))
 			writel(val << 16,
 			       host->ioaddr + SDHCI_TRANSFER_MODE);
 		else
@@ -470,7 +480,7 @@ static void esdhc_writeb_le(struct sdhci_host *host, u8 val, int reg)
 		 * The reset on usdhc fails to clear MIX_CTRL register.
 		 * Do it manually here.
 		 */
-		if (is_imx6q_usdhc(imx_data))
+		if (esdhc_is_usdhc(imx_data))
 			writel(0, host->ioaddr + ESDHC_MIX_CTRL);
 	}
 }
@@ -507,7 +517,7 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host,
 	u32 temp, val;
 
 	if (clock == 0) {
-		if (is_imx6q_usdhc(imx_data)) {
+		if (esdhc_is_usdhc(imx_data)) {
 			val = readl(host->ioaddr + ESDHC_VENDOR_SPEC);
 			writel(val & ~ESDHC_VENDOR_SPEC_FRC_SDCLK_ON,
 					host->ioaddr + ESDHC_VENDOR_SPEC);
@@ -515,7 +525,7 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host,
 		goto out;
 	}
 
-	if (is_imx6q_usdhc(imx_data))
+	if (esdhc_is_usdhc(imx_data))
 		pre_div = 1;
 
 	temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL);
@@ -542,7 +552,7 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host,
 		| (pre_div << ESDHC_PREDIV_SHIFT));
 	sdhci_writel(host, temp, ESDHC_SYSTEM_CONTROL);
 
-	if (is_imx6q_usdhc(imx_data)) {
+	if (esdhc_is_usdhc(imx_data)) {
 		val = readl(host->ioaddr + ESDHC_VENDOR_SPEC);
 		writel(val | ESDHC_VENDOR_SPEC_FRC_SDCLK_ON,
 		host->ioaddr + ESDHC_VENDOR_SPEC);
@@ -865,6 +875,9 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
 	if (is_imx25_esdhc(imx_data) || is_imx35_esdhc(imx_data))
 		imx_data->flags |= ESDHC_FLAG_ENGCM07207;
 
+	if (is_imx6q_usdhc(imx_data))
+		imx_data->flags |= ESDHC_FLAG_USDHC;
+
 	imx_data->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
 	if (IS_ERR(imx_data->clk_ipg)) {
 		err = PTR_ERR(imx_data->clk_ipg);
@@ -917,7 +930,7 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
 	 * The imx6q ROM code will change the default watermark level setting
 	 * to something insane.  Change it back here.
 	 */
-	if (is_imx6q_usdhc(imx_data))
+	if (esdhc_is_usdhc(imx_data))
 		writel(0x08100810, host->ioaddr + ESDHC_WTMK_LVL);
 
 	boarddata = &imx_data->boarddata;
@@ -980,7 +993,7 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
 	}
 
 	/* sdr50 and sdr104 needs work on 1.8v signal voltage */
-	if ((boarddata->support_vsel) && is_imx6q_usdhc(imx_data)) {
+	if ((boarddata->support_vsel) && esdhc_is_usdhc(imx_data)) {
 		imx_data->pins_100mhz = pinctrl_lookup_state(imx_data->pinctrl,
 						ESDHC_PINCTRL_STATE_100MHZ);
 		imx_data->pins_200mhz = pinctrl_lookup_state(imx_data->pinctrl,
-- 
cgit 


From 3770ee8f95a2aa2da66db460a10898e96eee1b13 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Thu, 17 Oct 2013 15:19:46 +0800
Subject: mmc: sdhci-esdhc-imx: pdev->id_entry should be immutable

As a good practice, device driver should not modify pdev->id_entry but
keep it immutable.  Let's assign of_device_id.data with imx_esdhc_type
constants directly, so that we do not have to manipulate pdev->id_entry
in .probe().

As the result, sdhci-esdhc-imx53 and sdhci-usdhc-imx6q can be removed
from platform_device_id table now, since they will only probe from
device tree.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Dong Aisheng <b29396@freescale.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 21 +++++++--------------
 1 file changed, 7 insertions(+), 14 deletions(-)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 2421ac7fa6bf..83023fa6fa34 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -133,12 +133,6 @@ static struct platform_device_id imx_esdhc_devtype[] = {
 	}, {
 		.name = "sdhci-esdhc-imx51",
 		.driver_data = IMX51_ESDHC,
-	}, {
-		.name = "sdhci-esdhc-imx53",
-		.driver_data = IMX53_ESDHC,
-	}, {
-		.name = "sdhci-usdhc-imx6q",
-		.driver_data = IMX6Q_USDHC,
 	}, {
 		/* sentinel */
 	}
@@ -146,11 +140,11 @@ static struct platform_device_id imx_esdhc_devtype[] = {
 MODULE_DEVICE_TABLE(platform, imx_esdhc_devtype);
 
 static const struct of_device_id imx_esdhc_dt_ids[] = {
-	{ .compatible = "fsl,imx25-esdhc", .data = &imx_esdhc_devtype[IMX25_ESDHC], },
-	{ .compatible = "fsl,imx35-esdhc", .data = &imx_esdhc_devtype[IMX35_ESDHC], },
-	{ .compatible = "fsl,imx51-esdhc", .data = &imx_esdhc_devtype[IMX51_ESDHC], },
-	{ .compatible = "fsl,imx53-esdhc", .data = &imx_esdhc_devtype[IMX53_ESDHC], },
-	{ .compatible = "fsl,imx6q-usdhc", .data = &imx_esdhc_devtype[IMX6Q_USDHC], },
+	{ .compatible = "fsl,imx25-esdhc", .data = (void *) IMX25_ESDHC, },
+	{ .compatible = "fsl,imx35-esdhc", .data = (void *) IMX35_ESDHC, },
+	{ .compatible = "fsl,imx51-esdhc", .data = (void *) IMX51_ESDHC, },
+	{ .compatible = "fsl,imx53-esdhc", .data = (void *) IMX53_ESDHC, },
+	{ .compatible = "fsl,imx6q-usdhc", .data = (void *) IMX6Q_USDHC, },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, imx_esdhc_dt_ids);
@@ -867,9 +861,8 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
 		goto free_sdhci;
 	}
 
-	if (of_id)
-		pdev->id_entry = of_id->data;
-	imx_data->devtype = pdev->id_entry->driver_data;
+	imx_data->devtype = of_id ? (enum imx_esdhc_type) of_id->data :
+				    pdev->id_entry->driver_data;
 	pltfm_host->priv = imx_data;
 
 	if (is_imx25_esdhc(imx_data) || is_imx35_esdhc(imx_data))
-- 
cgit 


From f47c4bbfa283df2dfd23c422c53f96d12005bbf6 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Thu, 17 Oct 2013 15:19:47 +0800
Subject: mmc: sdhci-esdhc-imx: create struct esdhc_soc_data

Create a struct esdhc_soc_data with moving 'flags' field from
pltfm_imx_data into it, and pass the pointer of this SoC specific data
structure through of_device_id.data directly, so that the translation
from enum imx_esdhc_type to flags can be saved.

With the change, enum imx_esdhc_type can be eliminated, since we can
implement the is_imx*_esdhc() by checking the esdhc_soc_data pointer.
The unused is_imx35_esdhc() and is_imx51_esdhc() are also removed, and the
others are kept there as we will need to use them to handle some small
register differences later, where use of new flags might be a little
overkilled.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Dong Aisheng <b29396@freescale.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 86 ++++++++++++++++++--------------------
 1 file changed, 41 insertions(+), 45 deletions(-)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 83023fa6fa34..c84c808ab00b 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -95,22 +95,37 @@
  */
 #define ESDHC_FLAG_USDHC		BIT(3)
 
-enum imx_esdhc_type {
-	IMX25_ESDHC,
-	IMX35_ESDHC,
-	IMX51_ESDHC,
-	IMX53_ESDHC,
-	IMX6Q_USDHC,
+struct esdhc_soc_data {
+	u32 flags;
+};
+
+static struct esdhc_soc_data esdhc_imx25_data = {
+	.flags = ESDHC_FLAG_ENGCM07207,
+};
+
+static struct esdhc_soc_data esdhc_imx35_data = {
+	.flags = ESDHC_FLAG_ENGCM07207,
+};
+
+static struct esdhc_soc_data esdhc_imx51_data = {
+	.flags = 0,
+};
+
+static struct esdhc_soc_data esdhc_imx53_data = {
+	.flags = ESDHC_FLAG_MULTIBLK_NO_INT,
+};
+
+static struct esdhc_soc_data usdhc_imx6q_data = {
+	.flags = ESDHC_FLAG_USDHC,
 };
 
 struct pltfm_imx_data {
-	int flags;
 	u32 scratchpad;
-	enum imx_esdhc_type devtype;
 	struct pinctrl *pinctrl;
 	struct pinctrl_state *pins_default;
 	struct pinctrl_state *pins_100mhz;
 	struct pinctrl_state *pins_200mhz;
+	const struct esdhc_soc_data *socdata;
 	struct esdhc_platform_data boarddata;
 	struct clk *clk_ipg;
 	struct clk *clk_ahb;
@@ -126,13 +141,13 @@ struct pltfm_imx_data {
 static struct platform_device_id imx_esdhc_devtype[] = {
 	{
 		.name = "sdhci-esdhc-imx25",
-		.driver_data = IMX25_ESDHC,
+		.driver_data = (kernel_ulong_t) &esdhc_imx25_data,
 	}, {
 		.name = "sdhci-esdhc-imx35",
-		.driver_data = IMX35_ESDHC,
+		.driver_data = (kernel_ulong_t) &esdhc_imx35_data,
 	}, {
 		.name = "sdhci-esdhc-imx51",
-		.driver_data = IMX51_ESDHC,
+		.driver_data = (kernel_ulong_t) &esdhc_imx51_data,
 	}, {
 		/* sentinel */
 	}
@@ -140,43 +155,33 @@ static struct platform_device_id imx_esdhc_devtype[] = {
 MODULE_DEVICE_TABLE(platform, imx_esdhc_devtype);
 
 static const struct of_device_id imx_esdhc_dt_ids[] = {
-	{ .compatible = "fsl,imx25-esdhc", .data = (void *) IMX25_ESDHC, },
-	{ .compatible = "fsl,imx35-esdhc", .data = (void *) IMX35_ESDHC, },
-	{ .compatible = "fsl,imx51-esdhc", .data = (void *) IMX51_ESDHC, },
-	{ .compatible = "fsl,imx53-esdhc", .data = (void *) IMX53_ESDHC, },
-	{ .compatible = "fsl,imx6q-usdhc", .data = (void *) IMX6Q_USDHC, },
+	{ .compatible = "fsl,imx25-esdhc", .data = &esdhc_imx25_data, },
+	{ .compatible = "fsl,imx35-esdhc", .data = &esdhc_imx35_data, },
+	{ .compatible = "fsl,imx51-esdhc", .data = &esdhc_imx51_data, },
+	{ .compatible = "fsl,imx53-esdhc", .data = &esdhc_imx53_data, },
+	{ .compatible = "fsl,imx6q-usdhc", .data = &usdhc_imx6q_data, },
 	{ /* sentinel */ }
 };
 MODULE_DEVICE_TABLE(of, imx_esdhc_dt_ids);
 
 static inline int is_imx25_esdhc(struct pltfm_imx_data *data)
 {
-	return data->devtype == IMX25_ESDHC;
-}
-
-static inline int is_imx35_esdhc(struct pltfm_imx_data *data)
-{
-	return data->devtype == IMX35_ESDHC;
-}
-
-static inline int is_imx51_esdhc(struct pltfm_imx_data *data)
-{
-	return data->devtype == IMX51_ESDHC;
+	return data->socdata == &esdhc_imx25_data;
 }
 
 static inline int is_imx53_esdhc(struct pltfm_imx_data *data)
 {
-	return data->devtype == IMX53_ESDHC;
+	return data->socdata == &esdhc_imx53_data;
 }
 
 static inline int is_imx6q_usdhc(struct pltfm_imx_data *data)
 {
-	return data->devtype == IMX6Q_USDHC;
+	return data->socdata == &usdhc_imx6q_data;
 }
 
 static inline int esdhc_is_usdhc(struct pltfm_imx_data *data)
 {
-	return !!(data->flags & ESDHC_FLAG_USDHC);
+	return !!(data->socdata->flags & ESDHC_FLAG_USDHC);
 }
 
 static inline void esdhc_clrset_le(struct sdhci_host *host, u32 mask, u32 val, int reg)
@@ -274,7 +279,7 @@ static void esdhc_writel_le(struct sdhci_host *host, u32 val, int reg)
 		}
 	}
 
-	if (unlikely((imx_data->flags & ESDHC_FLAG_MULTIBLK_NO_INT)
+	if (unlikely((imx_data->socdata->flags & ESDHC_FLAG_MULTIBLK_NO_INT)
 				&& (reg == SDHCI_INT_STATUS)
 				&& (val & SDHCI_INT_DATA_END))) {
 			u32 v;
@@ -373,7 +378,7 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg)
 		writel(new_val , host->ioaddr + ESDHC_MIX_CTRL);
 		return;
 	case SDHCI_TRANSFER_MODE:
-		if ((imx_data->flags & ESDHC_FLAG_MULTIBLK_NO_INT)
+		if ((imx_data->socdata->flags & ESDHC_FLAG_MULTIBLK_NO_INT)
 				&& (host->cmd->opcode == SD_IO_RW_EXTENDED)
 				&& (host->cmd->data->blocks > 1)
 				&& (host->cmd->data->flags & MMC_DATA_READ)) {
@@ -405,7 +410,7 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg)
 			val |= SDHCI_CMD_ABORTCMD;
 
 		if ((host->cmd->opcode == MMC_SET_BLOCK_COUNT) &&
-		    (imx_data->flags & ESDHC_FLAG_MULTIBLK_NO_INT))
+		    (imx_data->socdata->flags & ESDHC_FLAG_MULTIBLK_NO_INT))
 			imx_data->multiblock_status = MULTIBLK_IN_PROCESS;
 
 		if (esdhc_is_usdhc(imx_data))
@@ -861,16 +866,10 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
 		goto free_sdhci;
 	}
 
-	imx_data->devtype = of_id ? (enum imx_esdhc_type) of_id->data :
-				    pdev->id_entry->driver_data;
+	imx_data->socdata = of_id ? of_id->data : (struct esdhc_soc_data *)
+						  pdev->id_entry->driver_data;
 	pltfm_host->priv = imx_data;
 
-	if (is_imx25_esdhc(imx_data) || is_imx35_esdhc(imx_data))
-		imx_data->flags |= ESDHC_FLAG_ENGCM07207;
-
-	if (is_imx6q_usdhc(imx_data))
-		imx_data->flags |= ESDHC_FLAG_USDHC;
-
 	imx_data->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
 	if (IS_ERR(imx_data->clk_ipg)) {
 		err = PTR_ERR(imx_data->clk_ipg);
@@ -911,14 +910,11 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
 
 	host->quirks |= SDHCI_QUIRK_BROKEN_TIMEOUT_VAL;
 
-	if (imx_data->flags & ESDHC_FLAG_ENGCM07207)
+	if (imx_data->socdata->flags & ESDHC_FLAG_ENGCM07207)
 		/* Fix errata ENGcm07207 present on i.MX25 and i.MX35 */
 		host->quirks |= SDHCI_QUIRK_NO_MULTIBLOCK
 			| SDHCI_QUIRK_BROKEN_ADMA;
 
-	if (is_imx53_esdhc(imx_data))
-		imx_data->flags |= ESDHC_FLAG_MULTIBLK_NO_INT;
-
 	/*
 	 * The imx6q ROM code will change the default watermark level setting
 	 * to something insane.  Change it back here.
-- 
cgit 


From 6e9fd28e1f2422e8e5ad3c9871c952aad6a7e5ca Mon Sep 17 00:00:00 2001
From: Dong Aisheng <b29396@freescale.com>
Date: Fri, 18 Oct 2013 19:48:43 +0800
Subject: mmc: sdhci-esdhc-imx: add std tuning support for mx6sl

The mx6sl supports standard sdhci tuning, then esdhc_executing_tuning
is only needed for mx6q/dl. We introduce is_imx6_usdhc() and
is_imx6sl_usdhc() to handle the difference.

The standard tuning is enabled by setting ESDHC_TUNE_CTRL_STD_TUNING_EN bit
in new register ESDHC_TUNE_CTRL and operates with new tuning bits
defined in SDHCI_ACMD12_ERR register.

Note: mx6sl can also work on the old manually tuning mode as mx6q/dl if
not enable standard tuning mode.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 90 +++++++++++++++++++++++++++++++-------
 1 file changed, 73 insertions(+), 17 deletions(-)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index c84c808ab00b..3b9c94f74ed0 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -51,6 +51,11 @@
 #define  ESDHC_TUNE_CTRL_MIN		0
 #define  ESDHC_TUNE_CTRL_MAX		((1 << 7) - 1)
 
+#define ESDHC_TUNING_CTRL		0xcc
+#define ESDHC_STD_TUNING_EN		(1 << 24)
+/* NOTE: the minimum valid tuning start tap for mx6sl is 1 */
+#define ESDHC_TUNING_START_TAP		0x1
+
 #define ESDHC_TUNING_BLOCK_PATTERN_LEN	64
 
 /* pinctrl state */
@@ -94,6 +99,12 @@
  * integrated on the i.MX6 series.
  */
 #define ESDHC_FLAG_USDHC		BIT(3)
+/* The IP supports manual tuning process */
+#define ESDHC_FLAG_MAN_TUNING		BIT(4)
+/* The IP supports standard tuning process */
+#define ESDHC_FLAG_STD_TUNING		BIT(5)
+/* The IP has SDHCI_CAPABILITIES_1 register */
+#define ESDHC_FLAG_HAVE_CAP1		BIT(6)
 
 struct esdhc_soc_data {
 	u32 flags;
@@ -116,7 +127,12 @@ static struct esdhc_soc_data esdhc_imx53_data = {
 };
 
 static struct esdhc_soc_data usdhc_imx6q_data = {
-	.flags = ESDHC_FLAG_USDHC,
+	.flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_MAN_TUNING,
+};
+
+static struct esdhc_soc_data usdhc_imx6sl_data = {
+	.flags = ESDHC_FLAG_USDHC | ESDHC_FLAG_STD_TUNING
+			| ESDHC_FLAG_HAVE_CAP1,
 };
 
 struct pltfm_imx_data {
@@ -159,6 +175,7 @@ static const struct of_device_id imx_esdhc_dt_ids[] = {
 	{ .compatible = "fsl,imx35-esdhc", .data = &esdhc_imx35_data, },
 	{ .compatible = "fsl,imx51-esdhc", .data = &esdhc_imx51_data, },
 	{ .compatible = "fsl,imx53-esdhc", .data = &esdhc_imx53_data, },
+	{ .compatible = "fsl,imx6sl-usdhc", .data = &usdhc_imx6sl_data, },
 	{ .compatible = "fsl,imx6q-usdhc", .data = &usdhc_imx6q_data, },
 	{ /* sentinel */ }
 };
@@ -222,9 +239,16 @@ static u32 esdhc_readl_le(struct sdhci_host *host, int reg)
 		}
 	}
 
-	if (unlikely(reg == SDHCI_CAPABILITIES_1) && esdhc_is_usdhc(imx_data))
-		val = SDHCI_SUPPORT_DDR50 | SDHCI_SUPPORT_SDR104
-				| SDHCI_SUPPORT_SDR50;
+	if (unlikely(reg == SDHCI_CAPABILITIES_1)) {
+		if (esdhc_is_usdhc(imx_data)) {
+			if (imx_data->socdata->flags & ESDHC_FLAG_HAVE_CAP1)
+				val = readl(host->ioaddr + SDHCI_CAPABILITIES) & 0xFFFF;
+			else
+				/* imx6q/dl does not have cap_1 register, fake one */
+				val = SDHCI_SUPPORT_DDR50 | SDHCI_SUPPORT_SDR104
+					| SDHCI_SUPPORT_SDR50;
+		}
+	}
 
 	if (unlikely(reg == SDHCI_MAX_CURRENT) && esdhc_is_usdhc(imx_data)) {
 		val = 0;
@@ -331,13 +355,18 @@ static u16 esdhc_readw_le(struct sdhci_host *host, int reg)
 			ret |= SDHCI_CTRL_VDD_180;
 
 		if (esdhc_is_usdhc(imx_data)) {
-			val = readl(host->ioaddr + ESDHC_MIX_CTRL);
-			if (val & ESDHC_MIX_CTRL_EXE_TUNE)
-				ret |= SDHCI_CTRL_EXEC_TUNING;
-			if (val & ESDHC_MIX_CTRL_SMPCLK_SEL)
-				ret |= SDHCI_CTRL_TUNED_CLK;
+			if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING)
+				val = readl(host->ioaddr + ESDHC_MIX_CTRL);
+			else if (imx_data->socdata->flags & ESDHC_FLAG_STD_TUNING)
+				/* the std tuning bits is in ACMD12_ERR for imx6sl */
+				val = readl(host->ioaddr + SDHCI_ACMD12_ERR);
 		}
 
+		if (val & ESDHC_MIX_CTRL_EXE_TUNE)
+			ret |= SDHCI_CTRL_EXEC_TUNING;
+		if (val & ESDHC_MIX_CTRL_SMPCLK_SEL)
+			ret |= SDHCI_CTRL_TUNED_CLK;
+
 		ret |= (imx_data->uhs_mode & SDHCI_CTRL_UHS_MASK);
 		ret &= ~SDHCI_CTRL_PRESET_VAL_ENABLE;
 
@@ -370,12 +399,37 @@ static void esdhc_writew_le(struct sdhci_host *host, u16 val, int reg)
 			new_val &= ~ESDHC_VENDOR_SPEC_VSELECT;
 		writel(new_val, host->ioaddr + ESDHC_VENDOR_SPEC);
 		imx_data->uhs_mode = val & SDHCI_CTRL_UHS_MASK;
-		new_val = readl(host->ioaddr + ESDHC_MIX_CTRL);
-		if (val & SDHCI_CTRL_TUNED_CLK)
-			new_val |= ESDHC_MIX_CTRL_SMPCLK_SEL;
-		else
-			new_val &= ~ESDHC_MIX_CTRL_SMPCLK_SEL;
-		writel(new_val , host->ioaddr + ESDHC_MIX_CTRL);
+		if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING) {
+			new_val = readl(host->ioaddr + ESDHC_MIX_CTRL);
+			if (val & SDHCI_CTRL_TUNED_CLK)
+				new_val |= ESDHC_MIX_CTRL_SMPCLK_SEL;
+			else
+				new_val &= ~ESDHC_MIX_CTRL_SMPCLK_SEL;
+			writel(new_val , host->ioaddr + ESDHC_MIX_CTRL);
+		} else if (imx_data->socdata->flags & ESDHC_FLAG_STD_TUNING) {
+			u32 v = readl(host->ioaddr + SDHCI_ACMD12_ERR);
+			u32 m = readl(host->ioaddr + ESDHC_MIX_CTRL);
+			new_val = readl(host->ioaddr + ESDHC_TUNING_CTRL);
+			if (val & SDHCI_CTRL_EXEC_TUNING) {
+				new_val |= ESDHC_STD_TUNING_EN |
+						ESDHC_TUNING_START_TAP;
+				v |= ESDHC_MIX_CTRL_EXE_TUNE;
+				m |= ESDHC_MIX_CTRL_FBCLK_SEL;
+			} else {
+				new_val &= ~ESDHC_STD_TUNING_EN;
+				v &= ~ESDHC_MIX_CTRL_EXE_TUNE;
+				m &= ~ESDHC_MIX_CTRL_FBCLK_SEL;
+			}
+
+			if (val & SDHCI_CTRL_TUNED_CLK)
+				v |= ESDHC_MIX_CTRL_SMPCLK_SEL;
+			else
+				v &= ~ESDHC_MIX_CTRL_SMPCLK_SEL;
+
+			writel(new_val, host->ioaddr + ESDHC_TUNING_CTRL);
+			writel(v, host->ioaddr + SDHCI_ACMD12_ERR);
+			writel(m, host->ioaddr + ESDHC_MIX_CTRL);
+		}
 		return;
 	case SDHCI_TRANSFER_MODE:
 		if ((imx_data->socdata->flags & ESDHC_FLAG_MULTIBLK_NO_INT)
@@ -774,7 +828,7 @@ static int esdhc_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs)
 	return esdhc_change_pinstate(host, uhs);
 }
 
-static const struct sdhci_ops sdhci_esdhc_ops = {
+static struct sdhci_ops sdhci_esdhc_ops = {
 	.read_l = esdhc_readl_le,
 	.read_w = esdhc_readw_le,
 	.write_l = esdhc_writel_le,
@@ -786,7 +840,6 @@ static const struct sdhci_ops sdhci_esdhc_ops = {
 	.get_ro = esdhc_pltfm_get_ro,
 	.platform_bus_width = esdhc_pltfm_bus_width,
 	.set_uhs_signaling = esdhc_set_uhs_signaling,
-	.platform_execute_tuning = esdhc_executing_tuning,
 };
 
 static const struct sdhci_pltfm_data sdhci_esdhc_imx_pdata = {
@@ -922,6 +975,9 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
 	if (esdhc_is_usdhc(imx_data))
 		writel(0x08100810, host->ioaddr + ESDHC_WTMK_LVL);
 
+	if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING)
+		sdhci_esdhc_ops.platform_execute_tuning =
+					esdhc_executing_tuning;
 	boarddata = &imx_data->boarddata;
 	if (sdhci_esdhc_imx_probe_dt(pdev, boarddata) < 0) {
 		if (!host->mmc->parent->platform_data) {
-- 
cgit 


From 6b4fb6712a4c58b205c163e9080c349d71c208d0 Mon Sep 17 00:00:00 2001
From: Dong Aisheng <b29396@freescale.com>
Date: Fri, 18 Oct 2013 19:48:44 +0800
Subject: mmc: sdhci-esdhc-imx: fix reading cap_1 register value for mx6sl

When reading CAP_1 register for mx6sl, ignore bit[0-15] as it stores
CAP_2 register value which is new introduced in mx6sl.

Without this fix, the max clock for mx6sl may not be correct since
it's wrongly calculated by reading CAP_1 register.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 3b9c94f74ed0..1652e18b399b 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -226,6 +226,10 @@ static u32 esdhc_readl_le(struct sdhci_host *host, int reg)
 	}
 
 	if (unlikely(reg == SDHCI_CAPABILITIES)) {
+		/* ignore bit[0-15] as it stores cap_1 register val for mx6sl */
+		if (imx_data->socdata->flags & ESDHC_FLAG_HAVE_CAP1)
+			val &= 0xffff0000;
+
 		/* In FSL esdhc IC module, only bit20 is used to indicate the
 		 * ADMA2 capability of esdhc, but this bit is messed up on
 		 * some SOCs (e.g. on MX25, MX35 this bit is set, but they
-- 
cgit 


From 114f2bf6a158cd84c1a7280cf6233904c8bce430 Mon Sep 17 00:00:00 2001
From: Dong Aisheng <b29396@freescale.com>
Date: Fri, 18 Oct 2013 19:48:45 +0800
Subject: mmc: sdhci: report error once the maximum tuning loops exhausted or
 timeout

The original code missed to report an error when the maximum tuning
loops exhausted or timeout, it will cause the upper layer to wrongly
think the tuning process is passed.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 66bce7a8e996..cbde17d97e9d 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1989,6 +1989,7 @@ static int sdhci_execute_tuning(struct mmc_host *mmc, u32 opcode)
 	if (!tuning_loop_counter || !timeout) {
 		ctrl &= ~SDHCI_CTRL_TUNED_CLK;
 		sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2);
+		err = -EIO;
 	} else {
 		if (!(ctrl & SDHCI_CTRL_TUNED_CLK)) {
 			pr_info(DRIVER_NAME ": Tuning procedure"
-- 
cgit 


From de5bdbffd89dea0e3de76f99b0b036422bb93686 Mon Sep 17 00:00:00 2001
From: Dong Aisheng <b29396@freescale.com>
Date: Fri, 18 Oct 2013 19:48:46 +0800
Subject: mmc: sdhci-esdhc-imx: add DDR mode support for mx6

When DDR mode is enabled, the initial pre_div should be 2.
And the pre_div value should be changed accordingly
from
...
02h) Base clock divided by 4
01h) Base clock divided by 2
00h) Base clock divided by 1
to
..
02h) Base clock divided by 8
01h) Base clock divided by 4
00h) Base clock divided by 2

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 1652e18b399b..915fa68e5122 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -38,6 +38,7 @@
 #define  ESDHC_VENDOR_SPEC_FRC_SDCLK_ON	(1 << 8)
 #define ESDHC_WTMK_LVL			0x44
 #define ESDHC_MIX_CTRL			0x48
+#define  ESDHC_MIX_CTRL_DDREN		(1 << 3)
 #define  ESDHC_MIX_CTRL_AC23EN		(1 << 7)
 #define  ESDHC_MIX_CTRL_EXE_TUNE	(1 << 22)
 #define  ESDHC_MIX_CTRL_SMPCLK_SEL	(1 << 23)
@@ -152,6 +153,7 @@ struct pltfm_imx_data {
 		WAIT_FOR_INT,        /* sent CMD12, waiting for response INT */
 	} multiblock_status;
 	u32 uhs_mode;
+	u32 is_ddr;
 };
 
 static struct platform_device_id imx_esdhc_devtype[] = {
@@ -537,8 +539,10 @@ static void esdhc_writeb_le(struct sdhci_host *host, u8 val, int reg)
 		 * The reset on usdhc fails to clear MIX_CTRL register.
 		 * Do it manually here.
 		 */
-		if (esdhc_is_usdhc(imx_data))
+		if (esdhc_is_usdhc(imx_data)) {
 			writel(0, host->ioaddr + ESDHC_MIX_CTRL);
+			imx_data->is_ddr = 0;
+		}
 	}
 }
 
@@ -582,7 +586,7 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host,
 		goto out;
 	}
 
-	if (esdhc_is_usdhc(imx_data))
+	if (esdhc_is_usdhc(imx_data) && !imx_data->is_ddr)
 		pre_div = 1;
 
 	temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL);
@@ -600,7 +604,10 @@ static inline void esdhc_pltfm_set_clock(struct sdhci_host *host,
 	dev_dbg(mmc_dev(host->mmc), "desired SD clock: %d, actual: %d\n",
 		clock, host->mmc->actual_clock);
 
-	pre_div >>= 1;
+	if (imx_data->is_ddr)
+		pre_div >>= 2;
+	else
+		pre_div >>= 1;
 	div--;
 
 	temp = sdhci_readl(host, ESDHC_SYSTEM_CONTROL);
@@ -826,6 +833,10 @@ static int esdhc_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs)
 		break;
 	case MMC_TIMING_UHS_DDR50:
 		imx_data->uhs_mode = SDHCI_CTRL_UHS_DDR50;
+		writel(readl(host->ioaddr + ESDHC_MIX_CTRL) |
+				ESDHC_MIX_CTRL_DDREN,
+				host->ioaddr + ESDHC_MIX_CTRL);
+		imx_data->is_ddr = 1;
 		break;
 	}
 
-- 
cgit 


From 602519b2bd63adfdf9e24b2f94aaddcfeb464e9e Mon Sep 17 00:00:00 2001
From: Dong Aisheng <b29396@freescale.com>
Date: Fri, 18 Oct 2013 19:48:47 +0800
Subject: mmc: sdhci-esdhc-imx: add delay line setting support

The DLL(Delay Line) is newly added to assist in sampling read data.
The DLL provides the ability to programmatically select a quantized
delay (in fractions of the clock period) regardless of on-chip variations
such as process, voltage and temperature (PVT).

This patch adds a user interface to set slave delay line via device tree.
It's usually used in high speed mode like mmc DDR mode when the signal
quality is not good caused by board design, e.g. the signal path is too
long.  User can manually set delay line to find a suitable data sampling
window for card to work properly.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 .../devicetree/bindings/mmc/fsl-imx-esdhc.txt          |  5 +++++
 drivers/mmc/host/sdhci-esdhc-imx.c                     | 18 ++++++++++++++++++
 include/linux/platform_data/mmc-esdhc-imx.h            |  1 +
 3 files changed, 24 insertions(+)

diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
index 1dd622546d06..9046ba06c47a 100644
--- a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
+++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt
@@ -12,6 +12,11 @@ Required properties:
 Optional properties:
 - fsl,cd-controller : Indicate to use controller internal card detection
 - fsl,wp-controller : Indicate to use controller internal write protection
+- fsl,delay-line : Specify the number of delay cells for override mode.
+  This is used to set the clock delay for DLL(Delay Line) on override mode
+  to select a proper data sampling window in case the clock quality is not good
+  due to signal path is too long on the board. Please refer to eSDHC/uSDHC
+  chapter, DLL (Delay Line) section in RM for details.
 
 Examples:
 
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 915fa68e5122..260a81fde18d 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -46,6 +46,11 @@
 /* Bits 3 and 6 are not SDHCI standard definitions */
 #define  ESDHC_MIX_CTRL_SDHCI_MASK	0xb7
 
+/* dll control register */
+#define ESDHC_DLL_CTRL			0x60
+#define ESDHC_DLL_OVERRIDE_VAL_SHIFT	9
+#define ESDHC_DLL_OVERRIDE_EN_SHIFT	8
+
 /* tune control register */
 #define ESDHC_TUNE_CTRL_STATUS		0x68
 #define  ESDHC_TUNE_CTRL_STEP		1
@@ -817,6 +822,7 @@ static int esdhc_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs)
 {
 	struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
 	struct pltfm_imx_data *imx_data = pltfm_host->priv;
+	struct esdhc_platform_data *boarddata = &imx_data->boarddata;
 
 	switch (uhs) {
 	case MMC_TIMING_UHS_SDR12:
@@ -837,6 +843,15 @@ static int esdhc_set_uhs_signaling(struct sdhci_host *host, unsigned int uhs)
 				ESDHC_MIX_CTRL_DDREN,
 				host->ioaddr + ESDHC_MIX_CTRL);
 		imx_data->is_ddr = 1;
+		if (boarddata->delay_line) {
+			u32 v;
+			v = boarddata->delay_line <<
+				ESDHC_DLL_OVERRIDE_VAL_SHIFT |
+				(1 << ESDHC_DLL_OVERRIDE_EN_SHIFT);
+			if (is_imx53_esdhc(imx_data))
+				v <<= 1;
+			writel(v, host->ioaddr + ESDHC_DLL_CTRL);
+		}
 		break;
 	}
 
@@ -901,6 +916,9 @@ sdhci_esdhc_imx_probe_dt(struct platform_device *pdev,
 	else
 		boarddata->support_vsel = true;
 
+	if (of_property_read_u32(np, "fsl,delay-line", &boarddata->delay_line))
+		boarddata->delay_line = 0;
+
 	return 0;
 }
 #else
diff --git a/include/linux/platform_data/mmc-esdhc-imx.h b/include/linux/platform_data/mmc-esdhc-imx.h
index a0f5a8f9b3bc..75f70f6ac137 100644
--- a/include/linux/platform_data/mmc-esdhc-imx.h
+++ b/include/linux/platform_data/mmc-esdhc-imx.h
@@ -45,5 +45,6 @@ struct esdhc_platform_data {
 	int max_bus_width;
 	unsigned int f_max;
 	bool support_vsel;
+	unsigned int delay_line;
 };
 #endif /* __ASM_ARCH_IMX_ESDHC_H */
-- 
cgit 


From d42970f319f8a1d7cfe8196097f62e5b3885e449 Mon Sep 17 00:00:00 2001
From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Date: Mon, 21 Oct 2013 14:21:37 -0200
Subject: Bluetooth: Remove not used struct sock

It is a leftover from the recent effort of remove sk usage from L2CAP
core.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/l2cap_core.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index d52bd0d32621..4141545c620a 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -3726,7 +3726,7 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 	struct l2cap_conn_req *req = (struct l2cap_conn_req *) data;
 	struct l2cap_conn_rsp rsp;
 	struct l2cap_chan *chan = NULL, *pchan;
-	struct sock *parent, *sk = NULL;
+	struct sock *parent;
 	int result, status = L2CAP_CS_NO_INFO;
 
 	u16 dcid = 0, scid = __le16_to_cpu(req->scid);
@@ -3765,8 +3765,6 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 	if (!chan)
 		goto response;
 
-	sk = chan->sk;
-
 	/* For certain devices (ex: HID mouse), support for authentication,
 	 * pairing and bonding is optional. For such devices, inorder to avoid
 	 * the ACL alive for too long after L2CAP disconnection, reset the ACL
-- 
cgit 


From 0f2c6153746f270cf28559aa81a4da27847bd395 Mon Sep 17 00:00:00 2001
From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Date: Mon, 21 Oct 2013 14:21:38 -0200
Subject: Bluetooth: Do not access chan->sk directly

In the process of removing socket usage from L2CAP we now access the L2CAP
socket from the data member of struct l2cap_chan. For the L2CAP socket
user the data member points to the L2CAP socket.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/l2cap_sock.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 1f326d9d9132..a0b31db1246e 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1159,11 +1159,12 @@ static void l2cap_sock_state_change_cb(struct l2cap_chan *chan, int state,
 static struct sk_buff *l2cap_sock_alloc_skb_cb(struct l2cap_chan *chan,
 					       unsigned long len, int nb)
 {
+	struct sock *sk = chan->data;
 	struct sk_buff *skb;
 	int err;
 
 	l2cap_chan_unlock(chan);
-	skb = bt_skb_send_alloc(chan->sk, len, nb, &err);
+	skb = bt_skb_send_alloc(sk, len, nb, &err);
 	l2cap_chan_lock(chan);
 
 	if (!skb)
-- 
cgit 


From 888824bb63130ba70f310ebf8ffc2b44477847f5 Mon Sep 17 00:00:00 2001
From: Dong Aisheng <b29396@freescale.com>
Date: Fri, 18 Oct 2013 19:48:48 +0800
Subject: mmc: sdhci-esdhc-imx: enable SDR50 tuning for imx6q/dl

The imx6q/dl supports SDR50 tunning, enable it for a better timing
on SDR50 mode.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 260a81fde18d..1d1fcb2e9bf8 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -257,7 +257,8 @@ static u32 esdhc_readl_le(struct sdhci_host *host, int reg)
 			else
 				/* imx6q/dl does not have cap_1 register, fake one */
 				val = SDHCI_SUPPORT_DDR50 | SDHCI_SUPPORT_SDR104
-					| SDHCI_SUPPORT_SDR50;
+					| SDHCI_SUPPORT_SDR50
+					| SDHCI_USE_SDR50_TUNING;
 		}
 	}
 
-- 
cgit 


From acdcabf532908fbefbea294fcad2e3989d1dc036 Mon Sep 17 00:00:00 2001
From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Date: Mon, 21 Oct 2013 14:21:39 -0200
Subject: Bluetooth: Hold socket in defer callback in L2CAP socket

In both places that we use the defer callback the socket lock is held for
a indirect sk access inside __l2cap_change_state() and chan->ops->defer(),
all the rest of the code between lock_sock() and release_sock() is
already protected by the channel lock and won't be affected by this
change.

We now use l2cap_change_state(), the locked version of the change state
function, and the defer callback does the locking itself now. This does
not affect other uses of the defer callback.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/l2cap_core.c | 15 +++------------
 net/bluetooth/l2cap_sock.c |  8 ++++++--
 2 files changed, 9 insertions(+), 14 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 4141545c620a..049e1c81d771 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1299,20 +1299,16 @@ static void l2cap_conn_start(struct l2cap_conn *conn)
 			rsp.dcid = cpu_to_le16(chan->scid);
 
 			if (l2cap_chan_check_security(chan)) {
-				struct sock *sk = chan->sk;
-
-				lock_sock(sk);
 				if (test_bit(FLAG_DEFER_SETUP, &chan->flags)) {
 					rsp.result = __constant_cpu_to_le16(L2CAP_CR_PEND);
 					rsp.status = __constant_cpu_to_le16(L2CAP_CS_AUTHOR_PEND);
 					chan->ops->defer(chan);
 
 				} else {
-					__l2cap_state_change(chan, BT_CONFIG);
+					l2cap_state_change(chan, BT_CONFIG);
 					rsp.result = __constant_cpu_to_le16(L2CAP_CR_SUCCESS);
 					rsp.status = __constant_cpu_to_le16(L2CAP_CS_NO_INFO);
 				}
-				release_sock(sk);
 			} else {
 				rsp.result = __constant_cpu_to_le16(L2CAP_CR_PEND);
 				rsp.status = __constant_cpu_to_le16(L2CAP_CS_AUTHEN_PEND);
@@ -6643,31 +6639,26 @@ int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt)
 				__set_chan_timer(chan, L2CAP_DISC_TIMEOUT);
 			}
 		} else if (chan->state == BT_CONNECT2) {
-			struct sock *sk = chan->sk;
 			struct l2cap_conn_rsp rsp;
 			__u16 res, stat;
 
-			lock_sock(sk);
-
 			if (!status) {
 				if (test_bit(FLAG_DEFER_SETUP, &chan->flags)) {
 					res = L2CAP_CR_PEND;
 					stat = L2CAP_CS_AUTHOR_PEND;
 					chan->ops->defer(chan);
 				} else {
-					__l2cap_state_change(chan, BT_CONFIG);
+					l2cap_state_change(chan, BT_CONFIG);
 					res = L2CAP_CR_SUCCESS;
 					stat = L2CAP_CS_NO_INFO;
 				}
 			} else {
-				__l2cap_state_change(chan, BT_DISCONN);
+				l2cap_state_change(chan, BT_DISCONN);
 				__set_chan_timer(chan, L2CAP_DISC_TIMEOUT);
 				res = L2CAP_CR_SEC_BLOCK;
 				stat = L2CAP_CS_NO_INFO;
 			}
 
-			release_sock(sk);
-
 			rsp.scid   = cpu_to_le16(chan->dcid);
 			rsp.dcid   = cpu_to_le16(chan->scid);
 			rsp.result = cpu_to_le16(res);
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index a0b31db1246e..e55999228c8a 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1195,11 +1195,15 @@ static void l2cap_sock_ready_cb(struct l2cap_chan *chan)
 
 static void l2cap_sock_defer_cb(struct l2cap_chan *chan)
 {
-	struct sock *sk = chan->data;
-	struct sock *parent = bt_sk(sk)->parent;
+	struct sock *parent, *sk = chan->data;
+
+	lock_sock(sk);
 
+	parent = bt_sk(sk)->parent;
 	if (parent)
 		parent->sk_data_ready(parent, 0);
+
+	release_sock(sk);
 }
 
 static void l2cap_sock_resume_cb(struct l2cap_chan *chan)
-- 
cgit 


From f93fa2732313ca31ebdc68fd2d5b67fd1d363b42 Mon Sep 17 00:00:00 2001
From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Date: Mon, 21 Oct 2013 14:21:40 -0200
Subject: Bluetooth: Remove socket lock from l2cap_state_change()

This simplify and make safer the state change handling inside l2cap_core.c.
we got rid of __l2cap_state_change(). And l2cap_state_change() doesn't lock
the socket anymore, instead the socket is locked inside the ops callback for
state change in l2cap_sock.c.

It makes the code safer because in some we were using a unlocked version,
and now we are calls to l2cap_state_change(), when dealing with sockets, use
the locked version.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/l2cap_core.c | 31 +++++++------------------------
 1 file changed, 7 insertions(+), 24 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 049e1c81d771..c65ddc8e7689 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -223,7 +223,7 @@ static u16 l2cap_alloc_cid(struct l2cap_conn *conn)
 	return 0;
 }
 
-static void __l2cap_state_change(struct l2cap_chan *chan, int state)
+static void l2cap_state_change(struct l2cap_chan *chan, int state)
 {
 	BT_DBG("chan %p %s -> %s", chan, state_to_string(chan->state),
 	       state_to_string(state));
@@ -232,33 +232,16 @@ static void __l2cap_state_change(struct l2cap_chan *chan, int state)
 	chan->ops->state_change(chan, state, 0);
 }
 
-static void l2cap_state_change(struct l2cap_chan *chan, int state)
-{
-	struct sock *sk = chan->sk;
-
-	lock_sock(sk);
-	__l2cap_state_change(chan, state);
-	release_sock(sk);
-}
-
 static inline void l2cap_state_change_and_error(struct l2cap_chan *chan,
 						int state, int err)
 {
-	struct sock *sk = chan->sk;
-
-	lock_sock(sk);
 	chan->state = state;
 	chan->ops->state_change(chan, chan->state, err);
-	release_sock(sk);
 }
 
 static inline void l2cap_chan_set_err(struct l2cap_chan *chan, int err)
 {
-	struct sock *sk = chan->sk;
-
-	lock_sock(sk);
 	chan->ops->state_change(chan, chan->state, err);
-	release_sock(sk);
 }
 
 static void __set_retrans_timer(struct l2cap_chan *chan)
@@ -3787,7 +3770,7 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 	if (conn->info_state & L2CAP_INFO_FEAT_MASK_REQ_DONE) {
 		if (l2cap_chan_check_security(chan)) {
 			if (test_bit(FLAG_DEFER_SETUP, &chan->flags)) {
-				__l2cap_state_change(chan, BT_CONNECT2);
+				l2cap_state_change(chan, BT_CONNECT2);
 				result = L2CAP_CR_PEND;
 				status = L2CAP_CS_AUTHOR_PEND;
 				chan->ops->defer(chan);
@@ -3797,21 +3780,21 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 				 * physical link is up.
 				 */
 				if (amp_id == AMP_ID_BREDR) {
-					__l2cap_state_change(chan, BT_CONFIG);
+					l2cap_state_change(chan, BT_CONFIG);
 					result = L2CAP_CR_SUCCESS;
 				} else {
-					__l2cap_state_change(chan, BT_CONNECT2);
+					l2cap_state_change(chan, BT_CONNECT2);
 					result = L2CAP_CR_PEND;
 				}
 				status = L2CAP_CS_NO_INFO;
 			}
 		} else {
-			__l2cap_state_change(chan, BT_CONNECT2);
+			l2cap_state_change(chan, BT_CONNECT2);
 			result = L2CAP_CR_PEND;
 			status = L2CAP_CS_AUTHEN_PEND;
 		}
 	} else {
-		__l2cap_state_change(chan, BT_CONNECT2);
+		l2cap_state_change(chan, BT_CONNECT2);
 		result = L2CAP_CR_PEND;
 		status = L2CAP_CS_NO_INFO;
 	}
@@ -4738,7 +4721,7 @@ static void l2cap_do_create(struct l2cap_chan *chan, int result,
 			       sizeof(rsp), &rsp);
 
 		if (result == L2CAP_CR_SUCCESS) {
-			__l2cap_state_change(chan, BT_CONFIG);
+			l2cap_state_change(chan, BT_CONFIG);
 			set_bit(CONF_REQ_SENT, &chan->conf_state);
 			l2cap_send_cmd(chan->conn, l2cap_get_ident(chan->conn),
 				       L2CAP_CONF_REQ,
-- 
cgit 


From 8ffb929098a56939ac71509302eeab5b207bf262 Mon Sep 17 00:00:00 2001
From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Date: Mon, 21 Oct 2013 14:21:41 -0200
Subject: Bluetooth: Remove parent socket usage from l2cap_core.c

The parent socket is not used inside the L2CAP core anymore. We only lock
it to indirect access through the new_connection() callback. The hold of
the socket lock was moved to the new_connection() callback.

Inside L2CAP core the channel lock is now used in l2cap_le_conn_ready()
and l2cap_conn_ready() to protect the execution of these two functions
during the handling of new incoming connections.

This change remove the socket lock usage from L2CAP core while keeping
the code safe against race conditions.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/l2cap_core.c | 14 ++++----------
 net/bluetooth/l2cap_sock.c |  4 ++++
 2 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index c65ddc8e7689..bb6d35e6b832 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -1362,7 +1362,6 @@ static struct l2cap_chan *l2cap_global_chan_by_scid(int state, u16 cid,
 static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 {
 	struct hci_conn *hcon = conn->hcon;
-	struct sock *parent;
 	struct l2cap_chan *chan, *pchan;
 	u8 dst_type;
 
@@ -1384,9 +1383,7 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 	if (hci_blacklist_lookup(hcon->hdev, &hcon->dst, dst_type))
 		return;
 
-	parent = pchan->sk;
-
-	lock_sock(parent);
+	l2cap_chan_lock(pchan);
 
 	chan = pchan->ops->new_connection(pchan);
 	if (!chan)
@@ -1402,7 +1399,7 @@ static void l2cap_le_conn_ready(struct l2cap_conn *conn)
 	__l2cap_chan_add(conn, chan);
 
 clean:
-	release_sock(parent);
+	l2cap_chan_unlock(pchan);
 }
 
 static void l2cap_conn_ready(struct l2cap_conn *conn)
@@ -3705,7 +3702,6 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 	struct l2cap_conn_req *req = (struct l2cap_conn_req *) data;
 	struct l2cap_conn_rsp rsp;
 	struct l2cap_chan *chan = NULL, *pchan;
-	struct sock *parent;
 	int result, status = L2CAP_CS_NO_INFO;
 
 	u16 dcid = 0, scid = __le16_to_cpu(req->scid);
@@ -3721,10 +3717,8 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 		goto sendresp;
 	}
 
-	parent = pchan->sk;
-
 	mutex_lock(&conn->chan_lock);
-	lock_sock(parent);
+	l2cap_chan_lock(pchan);
 
 	/* Check if the ACL is secure enough (if not SDP) */
 	if (psm != __constant_cpu_to_le16(L2CAP_PSM_SDP) &&
@@ -3800,7 +3794,7 @@ static struct l2cap_chan *l2cap_connect(struct l2cap_conn *conn,
 	}
 
 response:
-	release_sock(parent);
+	l2cap_chan_unlock(pchan);
 	mutex_unlock(&conn->chan_lock);
 
 sendresp:
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index e55999228c8a..a159b0e05202 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1042,6 +1042,8 @@ static struct l2cap_chan *l2cap_sock_new_connection_cb(struct l2cap_chan *chan)
 {
 	struct sock *sk, *parent = chan->data;
 
+	lock_sock(parent);
+
 	/* Check for backlog size */
 	if (sk_acceptq_is_full(parent)) {
 		BT_DBG("backlog full %d", parent->sk_ack_backlog);
@@ -1059,6 +1061,8 @@ static struct l2cap_chan *l2cap_sock_new_connection_cb(struct l2cap_chan *chan)
 
 	bt_accept_enqueue(parent, sk);
 
+	release_sock(parent);
+
 	return l2cap_pi(sk)->chan;
 }
 
-- 
cgit 


From 69ed60e07bd2bb8517b4f87c6ddbb7f14c0189ab Mon Sep 17 00:00:00 2001
From: Dong Aisheng <b29396@freescale.com>
Date: Fri, 18 Oct 2013 19:48:49 +0800
Subject: mmc: sdhci-esdhc-imx: add preset value quirk for mx6

The i.MX6 does not support preset value feature.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci-esdhc-imx.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 1d1fcb2e9bf8..461a4c3f4ef7 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -1006,8 +1006,10 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
 	 * The imx6q ROM code will change the default watermark level setting
 	 * to something insane.  Change it back here.
 	 */
-	if (esdhc_is_usdhc(imx_data))
+	if (esdhc_is_usdhc(imx_data)) {
 		writel(0x08100810, host->ioaddr + ESDHC_WTMK_LVL);
+		host->quirks2 |= SDHCI_QUIRK2_PRESET_VALUE_BROKEN;
+	}
 
 	if (imx_data->socdata->flags & ESDHC_FLAG_MAN_TUNING)
 		sdhci_esdhc_ops.platform_execute_tuning =
-- 
cgit 


From 372c463487c6af8275d216f4b259dda6343a33a5 Mon Sep 17 00:00:00 2001
From: Dong Aisheng <b29396@freescale.com>
Date: Fri, 18 Oct 2013 19:48:50 +0800
Subject: mmc: sdhci: remove unneeded call when have preset value quirk

Remove unneeded call of call sdhci_enable_preset_value when having
SDHCI_QUIRK2_PRESET_VALUE_BROKEN.

Signed-off-by: Dong Aisheng <b29396@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index cbde17d97e9d..a21a71056dd0 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1435,7 +1435,8 @@ static void sdhci_do_set_ios(struct sdhci_host *host, struct mmc_ios *ios)
 	}
 
 	if (host->version >= SDHCI_SPEC_300 &&
-		(ios->power_mode == MMC_POWER_UP))
+		(ios->power_mode == MMC_POWER_UP) &&
+		!(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN))
 		sdhci_enable_preset_value(host, false);
 
 	sdhci_set_clock(host, ios->clock);
-- 
cgit 


From c68c7f5a88328fbcd992c68e99ebd6bf7d49e9d2 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Sun, 20 Oct 2013 06:26:02 +0200
Subject: net: fix build warnings because of net_get_random_once merge

This patch fixes the following warning:

   In file included from include/linux/skbuff.h:27:0,
                    from include/linux/netfilter.h:5,
                    from include/net/netns/netfilter.h:5,
                    from include/net/net_namespace.h:20,
                    from include/linux/init_task.h:14,
                    from init/init_task.c:1:
include/linux/net.h:243:14: warning: 'struct static_key' declared inside parameter list [enabled by default]
          struct static_key *done_key);

on x86_64 allnoconfig, um defconfig and ia64 allmodconfig and maybe others as well.

Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/net.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/net.h b/include/linux/net.h
index a489705f6fa3..aca446b46754 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -24,6 +24,7 @@
 #include <linux/fcntl.h>	/* For O_CLOEXEC and O_NONBLOCK */
 #include <linux/kmemcheck.h>
 #include <linux/rcupdate.h>
+#include <linux/jump_label.h>
 #include <uapi/linux/net.h>
 
 struct poll_table_struct;
-- 
cgit 


From 243be3dd7c14454899e51334a6d66d29a41ae6ab Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 18 Oct 2013 15:29:14 +0300
Subject: perf script: Print addr by default for BTS

The addr field is not displayed by default for hardware events, however
for branch events it is the target of the branch so for BTS display it
by default if it was recorded.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1382099356-4918-18-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-script.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 9c333ff3dfeb..ebb2b5fc6945 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -409,7 +409,9 @@ static void print_sample_bts(union perf_event *event,
 	printf(" => ");
 
 	/* print branch_to information */
-	if (PRINT_FIELD(ADDR))
+	if (PRINT_FIELD(ADDR) ||
+	    ((evsel->attr.sample_type & PERF_SAMPLE_ADDR) &&
+	     !output[attr->type].user_set))
 		print_sample_addr(event, sample, machine, thread, attr);
 
 	printf("\n");
-- 
cgit 


From f11cfc6f294dbd83b0d58037404df2bd16066238 Mon Sep 17 00:00:00 2001
From: Pekka Enberg <penberg@kernel.org>
Date: Tue, 15 Oct 2013 23:07:27 +0300
Subject: perf list: Show error if tracepoints not available

Tracepoints are not visible in "perf list" on Fedora 19 because regular
users have no permission to /sys/kernel/debug by default. Show an error
message so that the user knows about it instead of assuming that
tracepoints are not supported on the system.

Signed-off-by: Pekka Enberg <penberg@kernel.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Link: http://lkml.kernel.org/r/1381867647-8594-1-git-send-email-penberg@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/parse-events.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 98125319b158..c90e55cf7e82 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -998,8 +998,10 @@ void print_tracepoint_events(const char *subsys_glob, const char *event_glob,
 	char evt_path[MAXPATHLEN];
 	char dir_path[MAXPATHLEN];
 
-	if (debugfs_valid_mountpoint(tracing_events_path))
+	if (debugfs_valid_mountpoint(tracing_events_path)) {
+		printf("  [ Tracepoints not available: %s ]\n", strerror(errno));
 		return;
+	}
 
 	sys_dir = opendir(tracing_events_path);
 	if (!sys_dir)
-- 
cgit 


From e369517ce5f796945c6af047b4e8b1d650e03458 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Fri, 11 Oct 2013 14:15:36 +0900
Subject: perf callchain: Convert children list to rbtree

Current collapse stage has a scalability problem which can be reproduced
easily with a parallel kernel build.

This is because it needs to traverse every children of callchains
linearly during the collapse/merge stage.

Converting it to a rbtree reduced the overhead significantly.

On my 400MB perf.data file which recorded with make -j32 kernel build:

  $ time perf --no-pager report --stdio > /dev/null

before:
  real	6m22.073s
  user	6m18.683s
  sys	0m0.706s

after:
  real	0m20.780s
  user	0m19.962s
  sys	0m0.689s

During the perf report the overhead on append_chain_children went down
from 96.69% to 18.16%:

  -  18.16%  perf  perf                [.] append_chain_children
     - append_chain_children
        - 77.48% append_chain_children
           + 69.79% merge_chain_branch
           - 22.96% append_chain_children
              + 67.44% merge_chain_branch
              + 30.15% append_chain_children
              + 2.41% callchain_append
           + 7.25% callchain_append
        + 12.26% callchain_append
        + 10.22% merge_chain_branch
  +  11.58%  perf  perf                [.] dso__find_symbol
  +   8.02%  perf  perf                [.] sort__comm_cmp
  +   5.48%  perf  libc-2.17.so        [.] malloc_consolidate

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1381468543-25334-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/callchain.c | 147 +++++++++++++++++++++++++++++++++-----------
 tools/perf/util/callchain.h |  11 ++--
 2 files changed, 116 insertions(+), 42 deletions(-)

diff --git a/tools/perf/util/callchain.c b/tools/perf/util/callchain.c
index 482f68081cd8..e3970e3eaacf 100644
--- a/tools/perf/util/callchain.c
+++ b/tools/perf/util/callchain.c
@@ -21,12 +21,6 @@
 
 __thread struct callchain_cursor callchain_cursor;
 
-#define chain_for_each_child(child, parent)	\
-	list_for_each_entry(child, &parent->children, siblings)
-
-#define chain_for_each_child_safe(child, next, parent)	\
-	list_for_each_entry_safe(child, next, &parent->children, siblings)
-
 static void
 rb_insert_callchain(struct rb_root *root, struct callchain_node *chain,
 		    enum chain_mode mode)
@@ -71,10 +65,16 @@ static void
 __sort_chain_flat(struct rb_root *rb_root, struct callchain_node *node,
 		  u64 min_hit)
 {
+	struct rb_node *n;
 	struct callchain_node *child;
 
-	chain_for_each_child(child, node)
+	n = rb_first(&node->rb_root_in);
+	while (n) {
+		child = rb_entry(n, struct callchain_node, rb_node_in);
+		n = rb_next(n);
+
 		__sort_chain_flat(rb_root, child, min_hit);
+	}
 
 	if (node->hit && node->hit >= min_hit)
 		rb_insert_callchain(rb_root, node, CHAIN_FLAT);
@@ -94,11 +94,16 @@ sort_chain_flat(struct rb_root *rb_root, struct callchain_root *root,
 static void __sort_chain_graph_abs(struct callchain_node *node,
 				   u64 min_hit)
 {
+	struct rb_node *n;
 	struct callchain_node *child;
 
 	node->rb_root = RB_ROOT;
+	n = rb_first(&node->rb_root_in);
+
+	while (n) {
+		child = rb_entry(n, struct callchain_node, rb_node_in);
+		n = rb_next(n);
 
-	chain_for_each_child(child, node) {
 		__sort_chain_graph_abs(child, min_hit);
 		if (callchain_cumul_hits(child) >= min_hit)
 			rb_insert_callchain(&node->rb_root, child,
@@ -117,13 +122,18 @@ sort_chain_graph_abs(struct rb_root *rb_root, struct callchain_root *chain_root,
 static void __sort_chain_graph_rel(struct callchain_node *node,
 				   double min_percent)
 {
+	struct rb_node *n;
 	struct callchain_node *child;
 	u64 min_hit;
 
 	node->rb_root = RB_ROOT;
 	min_hit = ceil(node->children_hit * min_percent);
 
-	chain_for_each_child(child, node) {
+	n = rb_first(&node->rb_root_in);
+	while (n) {
+		child = rb_entry(n, struct callchain_node, rb_node_in);
+		n = rb_next(n);
+
 		__sort_chain_graph_rel(child, min_percent);
 		if (callchain_cumul_hits(child) >= min_hit)
 			rb_insert_callchain(&node->rb_root, child,
@@ -173,19 +183,26 @@ create_child(struct callchain_node *parent, bool inherit_children)
 		return NULL;
 	}
 	new->parent = parent;
-	INIT_LIST_HEAD(&new->children);
 	INIT_LIST_HEAD(&new->val);
 
 	if (inherit_children) {
-		struct callchain_node *next;
+		struct rb_node *n;
+		struct callchain_node *child;
+
+		new->rb_root_in = parent->rb_root_in;
+		parent->rb_root_in = RB_ROOT;
 
-		list_splice(&parent->children, &new->children);
-		INIT_LIST_HEAD(&parent->children);
+		n = rb_first(&new->rb_root_in);
+		while (n) {
+			child = rb_entry(n, struct callchain_node, rb_node_in);
+			child->parent = new;
+			n = rb_next(n);
+		}
 
-		chain_for_each_child(next, new)
-			next->parent = new;
+		/* make it the first child */
+		rb_link_node(&new->rb_node_in, NULL, &parent->rb_root_in.rb_node);
+		rb_insert_color(&new->rb_node_in, &parent->rb_root_in);
 	}
-	list_add_tail(&new->siblings, &parent->children);
 
 	return new;
 }
@@ -223,7 +240,7 @@ fill_node(struct callchain_node *node, struct callchain_cursor *cursor)
 	}
 }
 
-static void
+static struct callchain_node *
 add_child(struct callchain_node *parent,
 	  struct callchain_cursor *cursor,
 	  u64 period)
@@ -235,6 +252,19 @@ add_child(struct callchain_node *parent,
 
 	new->children_hit = 0;
 	new->hit = period;
+	return new;
+}
+
+static s64 match_chain(struct callchain_cursor_node *node,
+		      struct callchain_list *cnode)
+{
+	struct symbol *sym = node->sym;
+
+	if (cnode->ms.sym && sym &&
+	    callchain_param.key == CCKEY_FUNCTION)
+		return cnode->ms.sym->start - sym->start;
+	else
+		return cnode->ip - node->ip;
 }
 
 /*
@@ -272,9 +302,33 @@ split_add_child(struct callchain_node *parent,
 
 	/* create a new child for the new branch if any */
 	if (idx_total < cursor->nr) {
+		struct callchain_node *first;
+		struct callchain_list *cnode;
+		struct callchain_cursor_node *node;
+		struct rb_node *p, **pp;
+
 		parent->hit = 0;
-		add_child(parent, cursor, period);
 		parent->children_hit += period;
+
+		node = callchain_cursor_current(cursor);
+		new = add_child(parent, cursor, period);
+
+		/*
+		 * This is second child since we moved parent's children
+		 * to new (first) child above.
+		 */
+		p = parent->rb_root_in.rb_node;
+		first = rb_entry(p, struct callchain_node, rb_node_in);
+		cnode = list_first_entry(&first->val, struct callchain_list,
+					 list);
+
+		if (match_chain(node, cnode) < 0)
+			pp = &p->rb_left;
+		else
+			pp = &p->rb_right;
+
+		rb_link_node(&new->rb_node_in, p, pp);
+		rb_insert_color(&new->rb_node_in, &parent->rb_root_in);
 	} else {
 		parent->hit = period;
 	}
@@ -291,16 +345,40 @@ append_chain_children(struct callchain_node *root,
 		      u64 period)
 {
 	struct callchain_node *rnode;
+	struct callchain_cursor_node *node;
+	struct rb_node **p = &root->rb_root_in.rb_node;
+	struct rb_node *parent = NULL;
+
+	node = callchain_cursor_current(cursor);
+	if (!node)
+		return;
 
 	/* lookup in childrens */
-	chain_for_each_child(rnode, root) {
-		unsigned int ret = append_chain(rnode, cursor, period);
+	while (*p) {
+		s64 ret;
+		struct callchain_list *cnode;
 
-		if (!ret)
+		parent = *p;
+		rnode = rb_entry(parent, struct callchain_node, rb_node_in);
+		cnode = list_first_entry(&rnode->val, struct callchain_list,
+					 list);
+
+		/* just check first entry */
+		ret = match_chain(node, cnode);
+		if (ret == 0) {
+			append_chain(rnode, cursor, period);
 			goto inc_children_hit;
+		}
+
+		if (ret < 0)
+			p = &parent->rb_left;
+		else
+			p = &parent->rb_right;
 	}
 	/* nothing in children, add to the current node */
-	add_child(root, cursor, period);
+	rnode = add_child(root, cursor, period);
+	rb_link_node(&rnode->rb_node_in, parent, p);
+	rb_insert_color(&rnode->rb_node_in, &root->rb_root_in);
 
 inc_children_hit:
 	root->children_hit += period;
@@ -325,28 +403,20 @@ append_chain(struct callchain_node *root,
 	 */
 	list_for_each_entry(cnode, &root->val, list) {
 		struct callchain_cursor_node *node;
-		struct symbol *sym;
 
 		node = callchain_cursor_current(cursor);
 		if (!node)
 			break;
 
-		sym = node->sym;
-
-		if (cnode->ms.sym && sym &&
-		    callchain_param.key == CCKEY_FUNCTION) {
-			if (cnode->ms.sym->start != sym->start)
-				break;
-		} else if (cnode->ip != node->ip)
+		if (match_chain(node, cnode) != 0)
 			break;
 
-		if (!found)
-			found = true;
+		found = true;
 
 		callchain_cursor_advance(cursor);
 	}
 
-	/* matches not, relay on the parent */
+	/* matches not, relay no the parent */
 	if (!found) {
 		cursor->curr = curr_snap;
 		cursor->pos = start;
@@ -395,8 +465,9 @@ merge_chain_branch(struct callchain_cursor *cursor,
 		   struct callchain_node *dst, struct callchain_node *src)
 {
 	struct callchain_cursor_node **old_last = cursor->last;
-	struct callchain_node *child, *next_child;
+	struct callchain_node *child;
 	struct callchain_list *list, *next_list;
+	struct rb_node *n;
 	int old_pos = cursor->nr;
 	int err = 0;
 
@@ -412,12 +483,16 @@ merge_chain_branch(struct callchain_cursor *cursor,
 		append_chain_children(dst, cursor, src->hit);
 	}
 
-	chain_for_each_child_safe(child, next_child, src) {
+	n = rb_first(&src->rb_root_in);
+	while (n) {
+		child = container_of(n, struct callchain_node, rb_node_in);
+		n = rb_next(n);
+		rb_erase(&child->rb_node_in, &src->rb_root_in);
+
 		err = merge_chain_branch(cursor, dst, child);
 		if (err)
 			break;
 
-		list_del(&child->siblings);
 		free(child);
 	}
 
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 2b585bc308cf..7bb36022377f 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -21,11 +21,11 @@ enum chain_order {
 
 struct callchain_node {
 	struct callchain_node	*parent;
-	struct list_head	siblings;
-	struct list_head	children;
 	struct list_head	val;
-	struct rb_node		rb_node; /* to sort nodes in an rbtree */
-	struct rb_root		rb_root; /* sorted tree of children */
+	struct rb_node		rb_node_in; /* to insert nodes in an rbtree */
+	struct rb_node		rb_node;    /* to sort nodes in an output tree */
+	struct rb_root		rb_root_in; /* input tree of children */
+	struct rb_root		rb_root;    /* sorted output tree of children */
 	unsigned int		val_nr;
 	u64			hit;
 	u64			children_hit;
@@ -86,13 +86,12 @@ extern __thread struct callchain_cursor callchain_cursor;
 
 static inline void callchain_init(struct callchain_root *root)
 {
-	INIT_LIST_HEAD(&root->node.siblings);
-	INIT_LIST_HEAD(&root->node.children);
 	INIT_LIST_HEAD(&root->node.val);
 
 	root->node.parent = NULL;
 	root->node.hit = 0;
 	root->node.children_hit = 0;
+	root->node.rb_root_in = RB_ROOT;
 	root->max_depth = 0;
 }
 
-- 
cgit 


From 09600e0f9ebb06235b852a646a3644b7d4a71aca Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Tue, 15 Oct 2013 11:01:56 +0900
Subject: perf tools: Compare dso's also when comparing symbols

Linus reported that sometimes 'perf report -s symbol' exits without any
message on TUI.  David and Jiri found that it's because it failed to add
a hist entry due to an invalid symbol length.

It turns out that sorting by symbol (address) was broken since it only
compares symbol addresses.  The symbol address is a relative address
within a dso thus just checking its address can result in merging
unrelated symbols together.  Fix it by checking dso before comparing
symbol address.

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1381802517-18812-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/sort.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 32c56377e008..1f9821db9e77 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -182,9 +182,19 @@ static int64_t _sort__sym_cmp(struct symbol *sym_l, struct symbol *sym_r)
 static int64_t
 sort__sym_cmp(struct hist_entry *left, struct hist_entry *right)
 {
+	int64_t ret;
+
 	if (!left->ms.sym && !right->ms.sym)
 		return right->level - left->level;
 
+	/*
+	 * comparing symbol address alone is not enough since it's a
+	 * relative address within a dso.
+	 */
+	ret = sort__dso_cmp(left, right);
+	if (ret != 0)
+		return ret;
+
 	return _sort__sym_cmp(left->ms.sym, right->ms.sym);
 }
 
-- 
cgit 


From f5fc14124c5cefdd052a2b2a6a3f0ed531540113 Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Tue, 15 Oct 2013 16:27:32 +0200
Subject: perf tools: Add data object to handle perf data file

This patch is adding 'struct perf_data_file' object as a placeholder for
all attributes regarding perf.data file handling. Changing
perf_session__new to take it as an argument.

The rest of the functionality will be added later to keep this change
simple enough, because all the places using perf_session are changed
now.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1381847254-28809-2-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-annotate.c      |  9 ++++--
 tools/perf/builtin-buildid-cache.c |  8 +++--
 tools/perf/builtin-buildid-list.c  |  9 ++++--
 tools/perf/builtin-diff.c          | 19 +++++++-----
 tools/perf/builtin-evlist.c        |  7 ++++-
 tools/perf/builtin-inject.c        |  7 ++++-
 tools/perf/builtin-kmem.c          |  7 ++++-
 tools/perf/builtin-kvm.c           | 13 ++++++--
 tools/perf/builtin-lock.c          |  7 ++++-
 tools/perf/builtin-mem.c           |  9 ++++--
 tools/perf/builtin-record.c        | 61 ++++++++++++++++++++------------------
 tools/perf/builtin-report.c        | 10 +++++--
 tools/perf/builtin-sched.c         |  6 +++-
 tools/perf/builtin-script.c        | 15 ++++++++--
 tools/perf/builtin-timechart.c     | 10 +++++--
 tools/perf/builtin-top.c           |  6 +++-
 tools/perf/builtin-trace.c         |  8 +++--
 tools/perf/perf.h                  |  1 -
 tools/perf/util/data.h             | 29 ++++++++++++++++++
 tools/perf/util/session.c          | 12 ++++----
 tools/perf/util/session.h          |  6 ++--
 21 files changed, 186 insertions(+), 73 deletions(-)
 create mode 100644 tools/perf/util/data.h

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 94f9a8e78117..95df683d6074 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -28,6 +28,7 @@
 #include "util/hist.h"
 #include "util/session.h"
 #include "util/tool.h"
+#include "util/data.h"
 #include "arch/common.h"
 
 #include <dlfcn.h>
@@ -199,9 +200,13 @@ static int __cmd_annotate(struct perf_annotate *ann)
 	struct perf_session *session;
 	struct perf_evsel *pos;
 	u64 total_nr_samples;
+	struct perf_data_file file = {
+		.path  = input_name,
+		.mode  = PERF_DATA_MODE_READ,
+		.force = ann->force,
+	};
 
-	session = perf_session__new(input_name, O_RDONLY,
-				    ann->force, false, &ann->tool);
+	session = perf_session__new(&file, false, &ann->tool);
 	if (session == NULL)
 		return -ENOMEM;
 
diff --git a/tools/perf/builtin-buildid-cache.c b/tools/perf/builtin-buildid-cache.c
index 8140b7b249fa..cfede86161d8 100644
--- a/tools/perf/builtin-buildid-cache.c
+++ b/tools/perf/builtin-buildid-cache.c
@@ -221,8 +221,12 @@ static bool dso__missing_buildid_cache(struct dso *dso, int parm __maybe_unused)
 
 static int build_id_cache__fprintf_missing(const char *filename, bool force, FILE *fp)
 {
-	struct perf_session *session = perf_session__new(filename, O_RDONLY,
-							 force, false, NULL);
+	struct perf_data_file file = {
+		.path  = filename,
+		.mode  = PERF_DATA_MODE_READ,
+		.force = force,
+	};
+	struct perf_session *session = perf_session__new(&file, false, NULL);
 	if (session == NULL)
 		return -1;
 
diff --git a/tools/perf/builtin-buildid-list.c b/tools/perf/builtin-buildid-list.c
index e74366a13218..0164c1c3e834 100644
--- a/tools/perf/builtin-buildid-list.c
+++ b/tools/perf/builtin-buildid-list.c
@@ -15,6 +15,7 @@
 #include "util/parse-options.h"
 #include "util/session.h"
 #include "util/symbol.h"
+#include "util/data.h"
 
 static int sysfs__fprintf_build_id(FILE *fp)
 {
@@ -52,6 +53,11 @@ static bool dso__skip_buildid(struct dso *dso, int with_hits)
 static int perf_session__list_build_ids(bool force, bool with_hits)
 {
 	struct perf_session *session;
+	struct perf_data_file file = {
+		.path  = input_name,
+		.mode  = PERF_DATA_MODE_READ,
+		.force = force,
+	};
 
 	symbol__elf_init();
 	/*
@@ -60,8 +66,7 @@ static int perf_session__list_build_ids(bool force, bool with_hits)
 	if (filename__fprintf_build_id(input_name, stdout))
 		goto out;
 
-	session = perf_session__new(input_name, O_RDONLY, force, false,
-				    &build_id__mark_dso_hit_ops);
+	session = perf_session__new(&file, false, &build_id__mark_dso_hit_ops);
 	if (session == NULL)
 		return -1;
 	/*
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 2a78dc806c39..419d27dd708b 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -16,6 +16,7 @@
 #include "util/sort.h"
 #include "util/symbol.h"
 #include "util/util.h"
+#include "util/data.h"
 
 #include <stdlib.h>
 #include <math.h>
@@ -42,7 +43,7 @@ struct diff_hpp_fmt {
 
 struct data__file {
 	struct perf_session	*session;
-	const char		*file;
+	struct perf_data_file	file;
 	int			 idx;
 	struct hists		*hists;
 	struct diff_hpp_fmt	 fmt[PERF_HPP_DIFF__MAX_INDEX];
@@ -601,7 +602,7 @@ static void data__fprintf(void)
 
 	data__for_each_file(i, d)
 		fprintf(stdout, "#  [%d] %s %s\n",
-			d->idx, d->file,
+			d->idx, d->file.path,
 			!d->idx ? "(Baseline)" : "");
 
 	fprintf(stdout, "#\n");
@@ -663,17 +664,16 @@ static int __cmd_diff(void)
 	int ret = -EINVAL, i;
 
 	data__for_each_file(i, d) {
-		d->session = perf_session__new(d->file, O_RDONLY, force,
-					       false, &tool);
+		d->session = perf_session__new(&d->file, false, &tool);
 		if (!d->session) {
-			pr_err("Failed to open %s\n", d->file);
+			pr_err("Failed to open %s\n", d->file.path);
 			ret = -ENOMEM;
 			goto out_delete;
 		}
 
 		ret = perf_session__process_events(d->session, &tool);
 		if (ret) {
-			pr_err("Failed to process %s\n", d->file);
+			pr_err("Failed to process %s\n", d->file.path);
 			goto out_delete;
 		}
 
@@ -1016,7 +1016,12 @@ static int data_init(int argc, const char **argv)
 		return -ENOMEM;
 
 	data__for_each_file(i, d) {
-		d->file = use_default ? defaults[i] : argv[i];
+		struct perf_data_file *file = &d->file;
+
+		file->path  = use_default ? defaults[i] : argv[i];
+		file->mode  = PERF_DATA_MODE_READ,
+		file->force = force,
+
 		d->idx  = i;
 	}
 
diff --git a/tools/perf/builtin-evlist.c b/tools/perf/builtin-evlist.c
index 05bd9dfe875c..20b0f12763b0 100644
--- a/tools/perf/builtin-evlist.c
+++ b/tools/perf/builtin-evlist.c
@@ -14,13 +14,18 @@
 #include "util/parse-events.h"
 #include "util/parse-options.h"
 #include "util/session.h"
+#include "util/data.h"
 
 static int __cmd_evlist(const char *file_name, struct perf_attr_details *details)
 {
 	struct perf_session *session;
 	struct perf_evsel *pos;
+	struct perf_data_file file = {
+		.path = file_name,
+		.mode = PERF_DATA_MODE_READ,
+	};
 
-	session = perf_session__new(file_name, O_RDONLY, 0, false, NULL);
+	session = perf_session__new(&file, 0, NULL);
 	if (session == NULL)
 		return -ENOMEM;
 
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index f51a9637f69b..4aa6d7850bcc 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -15,6 +15,7 @@
 #include "util/tool.h"
 #include "util/debug.h"
 #include "util/build-id.h"
+#include "util/data.h"
 
 #include "util/parse-options.h"
 
@@ -345,6 +346,10 @@ static int __cmd_inject(struct perf_inject *inject)
 {
 	struct perf_session *session;
 	int ret = -EINVAL;
+	struct perf_data_file file = {
+		.path = inject->input_name,
+		.mode = PERF_DATA_MODE_READ,
+	};
 
 	signal(SIGINT, sig_handler);
 
@@ -355,7 +360,7 @@ static int __cmd_inject(struct perf_inject *inject)
 		inject->tool.tracing_data = perf_event__repipe_tracing_data;
 	}
 
-	session = perf_session__new(inject->input_name, O_RDONLY, false, true, &inject->tool);
+	session = perf_session__new(&file, true, &inject->tool);
 	if (session == NULL)
 		return -ENOMEM;
 
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 9b5f077fee5b..1126382659a9 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -13,6 +13,7 @@
 
 #include "util/parse-options.h"
 #include "util/trace-event.h"
+#include "util/data.h"
 
 #include "util/debug.h"
 
@@ -486,8 +487,12 @@ static int __cmd_kmem(void)
 		{ "kmem:kfree",			perf_evsel__process_free_event, },
     		{ "kmem:kmem_cache_free",	perf_evsel__process_free_event, },
 	};
+	struct perf_data_file file = {
+		.path = input_name,
+		.mode = PERF_DATA_MODE_READ,
+	};
 
-	session = perf_session__new(input_name, O_RDONLY, 0, false, &perf_kmem);
+	session = perf_session__new(&file, false, &perf_kmem);
 	if (session == NULL)
 		return -ENOMEM;
 
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index cfa0b7979914..188bb29b373f 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -17,6 +17,7 @@
 #include "util/tool.h"
 #include "util/stat.h"
 #include "util/top.h"
+#include "util/data.h"
 
 #include <sys/prctl.h>
 #include <sys/timerfd.h>
@@ -1215,10 +1216,13 @@ static int read_events(struct perf_kvm_stat *kvm)
 		.comm			= perf_event__process_comm,
 		.ordered_samples	= true,
 	};
+	struct perf_data_file file = {
+		.path = input_name,
+		.mode = PERF_DATA_MODE_READ,
+	};
 
 	kvm->tool = eops;
-	kvm->session = perf_session__new(kvm->file_name, O_RDONLY, 0, false,
-					 &kvm->tool);
+	kvm->session = perf_session__new(&file, false, &kvm->tool);
 	if (!kvm->session) {
 		pr_err("Initializing perf session failed\n");
 		return -EINVAL;
@@ -1450,6 +1454,9 @@ static int kvm_events_live(struct perf_kvm_stat *kvm,
 		"perf kvm stat live [<options>]",
 		NULL
 	};
+	struct perf_data_file file = {
+		.mode = PERF_DATA_MODE_WRITE,
+	};
 
 
 	/* event handling */
@@ -1514,7 +1521,7 @@ static int kvm_events_live(struct perf_kvm_stat *kvm,
 	/*
 	 * perf session
 	 */
-	kvm->session = perf_session__new(NULL, O_WRONLY, false, false, &kvm->tool);
+	kvm->session = perf_session__new(&file, false, &kvm->tool);
 	if (kvm->session == NULL) {
 		err = -ENOMEM;
 		goto out;
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 6a9076f165f4..33c7253295b9 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -15,6 +15,7 @@
 #include "util/debug.h"
 #include "util/session.h"
 #include "util/tool.h"
+#include "util/data.h"
 
 #include <sys/types.h>
 #include <sys/prctl.h>
@@ -853,8 +854,12 @@ static int __cmd_report(bool display_info)
 		.comm		 = perf_event__process_comm,
 		.ordered_samples = true,
 	};
+	struct perf_data_file file = {
+		.path = input_name,
+		.mode = PERF_DATA_MODE_READ,
+	};
 
-	session = perf_session__new(input_name, O_RDONLY, 0, false, &eops);
+	session = perf_session__new(&file, false, &eops);
 	if (!session) {
 		pr_err("Initializing perf session failed\n");
 		return -ENOMEM;
diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c
index 253133a6251d..31c00f186da1 100644
--- a/tools/perf/builtin-mem.c
+++ b/tools/perf/builtin-mem.c
@@ -5,6 +5,7 @@
 #include "util/trace-event.h"
 #include "util/tool.h"
 #include "util/session.h"
+#include "util/data.h"
 
 #define MEM_OPERATION_LOAD	"load"
 #define MEM_OPERATION_STORE	"store"
@@ -119,10 +120,14 @@ static int process_sample_event(struct perf_tool *tool,
 
 static int report_raw_events(struct perf_mem *mem)
 {
+	struct perf_data_file file = {
+		.path = input_name,
+		.mode = PERF_DATA_MODE_READ,
+	};
 	int err = -EINVAL;
 	int ret;
-	struct perf_session *session = perf_session__new(input_name, O_RDONLY,
-							 0, false, &mem->tool);
+	struct perf_session *session = perf_session__new(&file, false,
+							 &mem->tool);
 
 	if (session == NULL)
 		return -ENOMEM;
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index d269dfa3ab08..4ea46ffbfc1c 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -24,6 +24,7 @@
 #include "util/symbol.h"
 #include "util/cpumap.h"
 #include "util/thread_map.h"
+#include "util/data.h"
 
 #include <unistd.h>
 #include <sched.h>
@@ -65,11 +66,10 @@ struct perf_record {
 	struct perf_tool	tool;
 	struct perf_record_opts	opts;
 	u64			bytes_written;
-	const char		*output_name;
+	struct perf_data_file	file;
 	struct perf_evlist	*evlist;
 	struct perf_session	*session;
 	const char		*progname;
-	int			output;
 	int			realtime_prio;
 	bool			no_buildid;
 	bool			no_buildid_cache;
@@ -84,8 +84,10 @@ static void advance_output(struct perf_record *rec, size_t size)
 
 static int write_output(struct perf_record *rec, void *buf, size_t size)
 {
+	struct perf_data_file *file = &rec->file;
+
 	while (size) {
-		int ret = write(rec->output, buf, size);
+		int ret = write(file->fd, buf, size);
 
 		if (ret < 0) {
 			pr_err("failed to write perf data, error: %m\n");
@@ -248,13 +250,15 @@ out:
 
 static int process_buildids(struct perf_record *rec)
 {
-	u64 size = lseek(rec->output, 0, SEEK_CUR);
+	struct perf_data_file *file  = &rec->file;
+	struct perf_session *session = rec->session;
 
+	u64 size = lseek(file->fd, 0, SEEK_CUR);
 	if (size == 0)
 		return 0;
 
-	rec->session->fd = rec->output;
-	return __perf_session__process_events(rec->session, rec->post_processing_offset,
+	session->fd = file->fd;
+	return __perf_session__process_events(session, rec->post_processing_offset,
 					      size - rec->post_processing_offset,
 					      size, &build_id__mark_dso_hit_ops);
 }
@@ -262,17 +266,18 @@ static int process_buildids(struct perf_record *rec)
 static void perf_record__exit(int status, void *arg)
 {
 	struct perf_record *rec = arg;
+	struct perf_data_file *file = &rec->file;
 
 	if (status != 0)
 		return;
 
-	if (!rec->opts.pipe_output) {
+	if (!file->is_pipe) {
 		rec->session->header.data_size += rec->bytes_written;
 
 		if (!rec->no_buildid)
 			process_buildids(rec);
 		perf_session__write_header(rec->session, rec->evlist,
-					   rec->output, true);
+					   file->fd, true);
 		perf_session__delete(rec->session);
 		perf_evlist__delete(rec->evlist);
 		symbol__exit();
@@ -342,14 +347,15 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 {
 	struct stat st;
 	int flags;
-	int err, output, feat;
+	int err, feat;
 	unsigned long waking = 0;
 	const bool forks = argc > 0;
 	struct machine *machine;
 	struct perf_tool *tool = &rec->tool;
 	struct perf_record_opts *opts = &rec->opts;
 	struct perf_evlist *evsel_list = rec->evlist;
-	const char *output_name = rec->output_name;
+	struct perf_data_file *file = &rec->file;
+	const char *output_name = file->path;
 	struct perf_session *session;
 	bool disabled = false;
 
@@ -363,13 +369,13 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 
 	if (!output_name) {
 		if (!fstat(STDOUT_FILENO, &st) && S_ISFIFO(st.st_mode))
-			opts->pipe_output = true;
+			file->is_pipe = true;
 		else
-			rec->output_name = output_name = "perf.data";
+			file->path = output_name = "perf.data";
 	}
 	if (output_name) {
 		if (!strcmp(output_name, "-"))
-			opts->pipe_output = true;
+			file->is_pipe = true;
 		else if (!stat(output_name, &st) && st.st_size) {
 			char oldname[PATH_MAX];
 			snprintf(oldname, sizeof(oldname), "%s.old",
@@ -381,19 +387,16 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 
 	flags = O_CREAT|O_RDWR|O_TRUNC;
 
-	if (opts->pipe_output)
-		output = STDOUT_FILENO;
+	if (file->is_pipe)
+		file->fd = STDOUT_FILENO;
 	else
-		output = open(output_name, flags, S_IRUSR | S_IWUSR);
-	if (output < 0) {
+		file->fd = open(output_name, flags, S_IRUSR | S_IWUSR);
+	if (file->fd < 0) {
 		perror("failed to create output file");
 		return -1;
 	}
 
-	rec->output = output;
-
-	session = perf_session__new(output_name, O_WRONLY,
-				    true, false, NULL);
+	session = perf_session__new(file, false, NULL);
 	if (session == NULL) {
 		pr_err("Not enough memory for reading perf file header\n");
 		return -1;
@@ -415,7 +418,7 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 
 	if (forks) {
 		err = perf_evlist__prepare_workload(evsel_list, &opts->target,
-						    argv, opts->pipe_output,
+						    argv, file->is_pipe,
 						    true);
 		if (err < 0) {
 			pr_err("Couldn't run the workload!\n");
@@ -436,13 +439,13 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 	 */
 	on_exit(perf_record__exit, rec);
 
-	if (opts->pipe_output) {
-		err = perf_header__write_pipe(output);
+	if (file->is_pipe) {
+		err = perf_header__write_pipe(file->fd);
 		if (err < 0)
 			goto out_delete_session;
 	} else {
 		err = perf_session__write_header(session, evsel_list,
-						 output, false);
+						 file->fd, false);
 		if (err < 0)
 			goto out_delete_session;
 	}
@@ -455,11 +458,11 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 		goto out_delete_session;
 	}
 
-	rec->post_processing_offset = lseek(output, 0, SEEK_CUR);
+	rec->post_processing_offset = lseek(file->fd, 0, SEEK_CUR);
 
 	machine = &session->machines.host;
 
-	if (opts->pipe_output) {
+	if (file->is_pipe) {
 		err = perf_event__synthesize_attrs(tool, session,
 						   process_synthesized_event);
 		if (err < 0) {
@@ -476,7 +479,7 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 			 * return this more properly and also
 			 * propagate errors that now are calling die()
 			 */
-			err = perf_event__synthesize_tracing_data(tool, output, evsel_list,
+			err = perf_event__synthesize_tracing_data(tool, file->fd, evsel_list,
 								  process_synthesized_event);
 			if (err <= 0) {
 				pr_err("Couldn't record tracing data.\n");
@@ -845,7 +848,7 @@ const struct option record_options[] = {
 	OPT_STRING('C', "cpu", &record.opts.target.cpu_list, "cpu",
 		    "list of cpus to monitor"),
 	OPT_U64('c', "count", &record.opts.user_interval, "event period to sample"),
-	OPT_STRING('o', "output", &record.output_name, "file",
+	OPT_STRING('o', "output", &record.file.path, "file",
 		    "output file name"),
 	OPT_BOOLEAN('i', "no-inherit", &record.opts.no_inherit,
 		    "child tasks do not inherit counters"),
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 21b5c2f54c2a..60d7f8ec8505 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -33,6 +33,7 @@
 #include "util/thread.h"
 #include "util/sort.h"
 #include "util/hist.h"
+#include "util/data.h"
 #include "arch/common.h"
 
 #include <dlfcn.h>
@@ -857,6 +858,9 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 		     "Don't show entries under that percent", parse_percent_limit),
 	OPT_END()
 	};
+	struct perf_data_file file = {
+		.mode  = PERF_DATA_MODE_READ,
+	};
 
 	perf_config(perf_report_config, &report);
 
@@ -886,9 +890,11 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 		perf_hpp__init();
 	}
 
+	file.path  = input_name;
+	file.force = report.force;
+
 repeat:
-	session = perf_session__new(input_name, O_RDONLY,
-				    report.force, false, &report.tool);
+	session = perf_session__new(&file, false, &report.tool);
 	if (session == NULL)
 		return -ENOMEM;
 
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index d8c51b2f263f..5a46b102eb08 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1446,8 +1446,12 @@ static int perf_sched__read_events(struct perf_sched *sched,
 		{ "sched:sched_migrate_task", process_sched_migrate_task_event, },
 	};
 	struct perf_session *session;
+	struct perf_data_file file = {
+		.path = input_name,
+		.mode = PERF_DATA_MODE_READ,
+	};
 
-	session = perf_session__new(input_name, O_RDONLY, 0, false, &sched->tool);
+	session = perf_session__new(&file, false, &sched->tool);
 	if (session == NULL) {
 		pr_debug("No Memory for session\n");
 		return -1;
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index ebb2b5fc6945..f0c77a199616 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -15,6 +15,7 @@
 #include "util/evlist.h"
 #include "util/evsel.h"
 #include "util/sort.h"
+#include "util/data.h"
 #include <linux/bitmap.h>
 
 static char const		*script_name;
@@ -1115,10 +1116,14 @@ int find_scripts(char **scripts_array, char **scripts_path_array)
 	char scripts_path[MAXPATHLEN], lang_path[MAXPATHLEN];
 	DIR *scripts_dir, *lang_dir;
 	struct perf_session *session;
+	struct perf_data_file file = {
+		.path = input_name,
+		.mode = PERF_DATA_MODE_READ,
+	};
 	char *temp;
 	int i = 0;
 
-	session = perf_session__new(input_name, O_RDONLY, 0, false, NULL);
+	session = perf_session__new(&file, false, NULL);
 	if (!session)
 		return -1;
 
@@ -1319,12 +1324,17 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
 		"perf script [<options>] <top-script> [script-args]",
 		NULL
 	};
+	struct perf_data_file file = {
+		.mode = PERF_DATA_MODE_READ,
+	};
 
 	setup_scripting();
 
 	argc = parse_options(argc, argv, options, script_usage,
 			     PARSE_OPT_STOP_AT_NON_OPTION);
 
+	file.path = input_name;
+
 	if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) {
 		rec_script_path = get_script_path(argv[1], RECORD_SUFFIX);
 		if (!rec_script_path)
@@ -1488,8 +1498,7 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
 	if (!script_name)
 		setup_pager();
 
-	session = perf_session__new(input_name, O_RDONLY, 0, false,
-				    &perf_script);
+	session = perf_session__new(&file, false, &perf_script);
 	if (session == NULL)
 		return -ENOMEM;
 
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index c2e02319347a..e11c61d9bda4 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -36,6 +36,7 @@
 #include "util/session.h"
 #include "util/svghelper.h"
 #include "util/tool.h"
+#include "util/data.h"
 
 #define SUPPORT_OLD_POWER_EVENTS 1
 #define PWR_EVENT_EXIT -1
@@ -990,8 +991,13 @@ static int __cmd_timechart(const char *output_name)
 		{ "power:power_frequency",	process_sample_power_frequency },
 #endif
 	};
-	struct perf_session *session = perf_session__new(input_name, O_RDONLY,
-							 0, false, &perf_timechart);
+	struct perf_data_file file = {
+		.path = input_name,
+		.mode = PERF_DATA_MODE_READ,
+	};
+
+	struct perf_session *session = perf_session__new(&file, false,
+							 &perf_timechart);
 	int ret = -EINVAL;
 
 	if (session == NULL)
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 65c49b2f51c1..752bebeac3aa 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -929,11 +929,15 @@ static int __cmd_top(struct perf_top *top)
 	struct perf_record_opts *opts = &top->record_opts;
 	pthread_t thread;
 	int ret;
+	struct perf_data_file file = {
+		.mode = PERF_DATA_MODE_WRITE,
+	};
+
 	/*
 	 * FIXME: perf_session__new should allow passing a O_MMAP, so that all this
 	 * mmap reading, etc is encapsulated in it. Use O_WRONLY for now.
 	 */
-	top->session = perf_session__new(NULL, O_WRONLY, false, false, NULL);
+	top->session = perf_session__new(&file, false, NULL);
 	if (top->session == NULL)
 		return -ENOMEM;
 
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index db959ac3d46e..fa620bc1db69 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1834,7 +1834,10 @@ static int trace__replay(struct trace *trace)
 		{ "raw_syscalls:sys_exit",   trace__sys_exit, },
 		{ "probe:vfs_getname",	     trace__vfs_getname, },
 	};
-
+	struct perf_data_file file = {
+		.path  = input_name,
+		.mode  = PERF_DATA_MODE_READ,
+	};
 	struct perf_session *session;
 	int err = -1;
 
@@ -1857,8 +1860,7 @@ static int trace__replay(struct trace *trace)
 	if (symbol__init() < 0)
 		return -1;
 
-	session = perf_session__new(input_name, O_RDONLY, 0, false,
-				    &trace->tool);
+	session = perf_session__new(&file, false, &trace->tool);
 	if (session == NULL)
 		return -ENOMEM;
 
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 84502e88488b..f61c230beec4 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -220,7 +220,6 @@ struct perf_record_opts {
 	bool	     no_delay;
 	bool	     no_inherit;
 	bool	     no_samples;
-	bool	     pipe_output;
 	bool	     raw_samples;
 	bool	     sample_address;
 	bool	     sample_weight;
diff --git a/tools/perf/util/data.h b/tools/perf/util/data.h
new file mode 100644
index 000000000000..ffa0186e6000
--- /dev/null
+++ b/tools/perf/util/data.h
@@ -0,0 +1,29 @@
+#ifndef __PERF_DATA_H
+#define __PERF_DATA_H
+
+#include <stdbool.h>
+
+enum perf_data_mode {
+	PERF_DATA_MODE_WRITE,
+	PERF_DATA_MODE_READ,
+};
+
+struct perf_data_file {
+	const char *path;
+	int fd;
+	bool is_pipe;
+	bool force;
+	enum perf_data_mode mode;
+};
+
+static inline bool perf_data_file__is_read(struct perf_data_file *file)
+{
+	return file->mode == PERF_DATA_MODE_READ;
+}
+
+static inline bool perf_data_file__is_write(struct perf_data_file *file)
+{
+	return file->mode == PERF_DATA_MODE_WRITE;
+}
+
+#endif /* __PERF_DATA_H */
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index d4559ca08ca6..e3f63df1d57c 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -106,11 +106,11 @@ static void perf_session__destroy_kernel_maps(struct perf_session *self)
 	machines__destroy_kernel_maps(&self->machines);
 }
 
-struct perf_session *perf_session__new(const char *filename, int mode,
-				       bool force, bool repipe,
-				       struct perf_tool *tool)
+struct perf_session *perf_session__new(struct perf_data_file *file,
+				       bool repipe, struct perf_tool *tool)
 {
 	struct perf_session *self;
+	const char *filename = file->path;
 	struct stat st;
 	size_t len;
 
@@ -134,11 +134,11 @@ struct perf_session *perf_session__new(const char *filename, int mode,
 	INIT_LIST_HEAD(&self->ordered_samples.to_free);
 	machines__init(&self->machines);
 
-	if (mode == O_RDONLY) {
-		if (perf_session__open(self, force) < 0)
+	if (perf_data_file__is_read(file)) {
+		if (perf_session__open(self, file->force) < 0)
 			goto out_delete;
 		perf_session__set_id_hdr_size(self);
-	} else if (mode == O_WRONLY) {
+	} else if (perf_data_file__is_write(file)) {
 		/*
 		 * In O_RDONLY mode this will be performed when reading the
 		 * kernel MMAP event, in perf_event__process_mmap().
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 04bf7373a7e5..f2f6251fd62c 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -7,6 +7,7 @@
 #include "machine.h"
 #include "symbol.h"
 #include "thread.h"
+#include "data.h"
 #include <linux/rbtree.h>
 #include <linux/perf_event.h>
 
@@ -49,9 +50,8 @@ struct perf_session {
 
 struct perf_tool;
 
-struct perf_session *perf_session__new(const char *filename, int mode,
-				       bool force, bool repipe,
-				       struct perf_tool *tool);
+struct perf_session *perf_session__new(struct perf_data_file *file,
+				       bool repipe, struct perf_tool *tool);
 void perf_session__delete(struct perf_session *session);
 
 void perf_event_header__bswap(struct perf_event_header *self);
-- 
cgit 


From 6a4d98d787b38a130a67e78b64182b419899623a Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Tue, 15 Oct 2013 16:27:33 +0200
Subject: perf tools: Add perf_data_file__open interface to data object

Adding perf_data_file__open interface to data object to open the
perf.data file for both read and write.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1381847254-28809-3-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Makefile.perf    |   1 +
 tools/perf/builtin-record.c |  34 +------------
 tools/perf/builtin-top.c    |   9 +---
 tools/perf/util/data.c      | 120 ++++++++++++++++++++++++++++++++++++++++++++
 tools/perf/util/data.h      |   4 ++
 tools/perf/util/session.c   |  95 +++++++++++------------------------
 tools/perf/util/session.h   |   2 +-
 7 files changed, 158 insertions(+), 107 deletions(-)
 create mode 100644 tools/perf/util/data.c

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index c873e039aafb..326a26e5fc1c 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -365,6 +365,7 @@ LIB_OBJS += $(OUTPUT)util/vdso.o
 LIB_OBJS += $(OUTPUT)util/stat.o
 LIB_OBJS += $(OUTPUT)util/record.o
 LIB_OBJS += $(OUTPUT)util/srcline.o
+LIB_OBJS += $(OUTPUT)util/data.o
 
 LIB_OBJS += $(OUTPUT)ui/setup.o
 LIB_OBJS += $(OUTPUT)ui/helpline.o
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 4ea46ffbfc1c..428e28f3e677 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -345,8 +345,6 @@ out:
 
 static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 {
-	struct stat st;
-	int flags;
 	int err, feat;
 	unsigned long waking = 0;
 	const bool forks = argc > 0;
@@ -355,7 +353,6 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 	struct perf_record_opts *opts = &rec->opts;
 	struct perf_evlist *evsel_list = rec->evlist;
 	struct perf_data_file *file = &rec->file;
-	const char *output_name = file->path;
 	struct perf_session *session;
 	bool disabled = false;
 
@@ -367,35 +364,6 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 	signal(SIGUSR1, sig_handler);
 	signal(SIGTERM, sig_handler);
 
-	if (!output_name) {
-		if (!fstat(STDOUT_FILENO, &st) && S_ISFIFO(st.st_mode))
-			file->is_pipe = true;
-		else
-			file->path = output_name = "perf.data";
-	}
-	if (output_name) {
-		if (!strcmp(output_name, "-"))
-			file->is_pipe = true;
-		else if (!stat(output_name, &st) && st.st_size) {
-			char oldname[PATH_MAX];
-			snprintf(oldname, sizeof(oldname), "%s.old",
-				 output_name);
-			unlink(oldname);
-			rename(output_name, oldname);
-		}
-	}
-
-	flags = O_CREAT|O_RDWR|O_TRUNC;
-
-	if (file->is_pipe)
-		file->fd = STDOUT_FILENO;
-	else
-		file->fd = open(output_name, flags, S_IRUSR | S_IWUSR);
-	if (file->fd < 0) {
-		perror("failed to create output file");
-		return -1;
-	}
-
 	session = perf_session__new(file, false, NULL);
 	if (session == NULL) {
 		pr_err("Not enough memory for reading perf file header\n");
@@ -586,7 +554,7 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 	fprintf(stderr,
 		"[ perf record: Captured and wrote %.3f MB %s (~%" PRIu64 " samples) ]\n",
 		(double)rec->bytes_written / 1024.0 / 1024.0,
-		output_name,
+		file->path,
 		rec->bytes_written / 24);
 
 	return 0;
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 752bebeac3aa..d934f707ee74 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -929,15 +929,8 @@ static int __cmd_top(struct perf_top *top)
 	struct perf_record_opts *opts = &top->record_opts;
 	pthread_t thread;
 	int ret;
-	struct perf_data_file file = {
-		.mode = PERF_DATA_MODE_WRITE,
-	};
 
-	/*
-	 * FIXME: perf_session__new should allow passing a O_MMAP, so that all this
-	 * mmap reading, etc is encapsulated in it. Use O_WRONLY for now.
-	 */
-	top->session = perf_session__new(&file, false, NULL);
+	top->session = perf_session__new(NULL, false, NULL);
 	if (top->session == NULL)
 		return -ENOMEM;
 
diff --git a/tools/perf/util/data.c b/tools/perf/util/data.c
new file mode 100644
index 000000000000..7d09faf85cf1
--- /dev/null
+++ b/tools/perf/util/data.c
@@ -0,0 +1,120 @@
+#include <linux/compiler.h>
+#include <linux/kernel.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <string.h>
+
+#include "data.h"
+#include "util.h"
+
+static bool check_pipe(struct perf_data_file *file)
+{
+	struct stat st;
+	bool is_pipe = false;
+	int fd = perf_data_file__is_read(file) ?
+		 STDIN_FILENO : STDOUT_FILENO;
+
+	if (!file->path) {
+		if (!fstat(fd, &st) && S_ISFIFO(st.st_mode))
+			is_pipe = true;
+	} else {
+		if (!strcmp(file->path, "-"))
+			is_pipe = true;
+	}
+
+	if (is_pipe)
+		file->fd = fd;
+
+	return file->is_pipe = is_pipe;
+}
+
+static int check_backup(struct perf_data_file *file)
+{
+	struct stat st;
+
+	if (!stat(file->path, &st) && st.st_size) {
+		/* TODO check errors properly */
+		char oldname[PATH_MAX];
+		snprintf(oldname, sizeof(oldname), "%s.old",
+			 file->path);
+		unlink(oldname);
+		rename(file->path, oldname);
+	}
+
+	return 0;
+}
+
+static int open_file_read(struct perf_data_file *file)
+{
+	struct stat st;
+	int fd;
+
+	fd = open(file->path, O_RDONLY);
+	if (fd < 0) {
+		int err = errno;
+
+		pr_err("failed to open %s: %s", file->path, strerror(err));
+		if (err == ENOENT && !strcmp(file->path, "perf.data"))
+			pr_err("  (try 'perf record' first)");
+		pr_err("\n");
+		return -err;
+	}
+
+	if (fstat(fd, &st) < 0)
+		goto out_close;
+
+	if (!file->force && st.st_uid && (st.st_uid != geteuid())) {
+		pr_err("file %s not owned by current user or root\n",
+		       file->path);
+		goto out_close;
+	}
+
+	if (!st.st_size) {
+		pr_info("zero-sized file (%s), nothing to do!\n",
+			file->path);
+		goto out_close;
+	}
+
+	file->size = st.st_size;
+	return fd;
+
+ out_close:
+	close(fd);
+	return -1;
+}
+
+static int open_file_write(struct perf_data_file *file)
+{
+	if (check_backup(file))
+		return -1;
+
+	return open(file->path, O_CREAT|O_RDWR|O_TRUNC, S_IRUSR|S_IWUSR);
+}
+
+static int open_file(struct perf_data_file *file)
+{
+	int fd;
+
+	fd = perf_data_file__is_read(file) ?
+	     open_file_read(file) : open_file_write(file);
+
+	file->fd = fd;
+	return fd < 0 ? -1 : 0;
+}
+
+int perf_data_file__open(struct perf_data_file *file)
+{
+	if (check_pipe(file))
+		return 0;
+
+	if (!file->path)
+		file->path = "perf.data";
+
+	return open_file(file);
+}
+
+void perf_data_file__close(struct perf_data_file *file)
+{
+	close(file->fd);
+}
diff --git a/tools/perf/util/data.h b/tools/perf/util/data.h
index ffa0186e6000..d6c262e42f47 100644
--- a/tools/perf/util/data.h
+++ b/tools/perf/util/data.h
@@ -13,6 +13,7 @@ struct perf_data_file {
 	int fd;
 	bool is_pipe;
 	bool force;
+	unsigned long size;
 	enum perf_data_mode mode;
 };
 
@@ -26,4 +27,7 @@ static inline bool perf_data_file__is_write(struct perf_data_file *file)
 	return file->mode == PERF_DATA_MODE_WRITE;
 }
 
+int perf_data_file__open(struct perf_data_file *file);
+void perf_data_file__close(struct perf_data_file *file);
+
 #endif /* __PERF_DATA_H */
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index e3f63df1d57c..d857c18d2eeb 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -16,73 +16,35 @@
 #include "perf_regs.h"
 #include "vdso.h"
 
-static int perf_session__open(struct perf_session *self, bool force)
+static int perf_session__open(struct perf_session *self)
 {
-	struct stat input_stat;
-
-	if (!strcmp(self->filename, "-")) {
-		self->fd_pipe = true;
-		self->fd = STDIN_FILENO;
-
+	if (self->fd_pipe) {
 		if (perf_session__read_header(self) < 0)
 			pr_err("incompatible file format (rerun with -v to learn more)");
-
 		return 0;
 	}
 
-	self->fd = open(self->filename, O_RDONLY);
-	if (self->fd < 0) {
-		int err = errno;
-
-		pr_err("failed to open %s: %s", self->filename, strerror(err));
-		if (err == ENOENT && !strcmp(self->filename, "perf.data"))
-			pr_err("  (try 'perf record' first)");
-		pr_err("\n");
-		return -errno;
-	}
-
-	if (fstat(self->fd, &input_stat) < 0)
-		goto out_close;
-
-	if (!force && input_stat.st_uid && (input_stat.st_uid != geteuid())) {
-		pr_err("file %s not owned by current user or root\n",
-		       self->filename);
-		goto out_close;
-	}
-
-	if (!input_stat.st_size) {
-		pr_info("zero-sized file (%s), nothing to do!\n",
-			self->filename);
-		goto out_close;
-	}
-
 	if (perf_session__read_header(self) < 0) {
 		pr_err("incompatible file format (rerun with -v to learn more)");
-		goto out_close;
+		return -1;
 	}
 
 	if (!perf_evlist__valid_sample_type(self->evlist)) {
 		pr_err("non matching sample_type");
-		goto out_close;
+		return -1;
 	}
 
 	if (!perf_evlist__valid_sample_id_all(self->evlist)) {
 		pr_err("non matching sample_id_all");
-		goto out_close;
+		return -1;
 	}
 
 	if (!perf_evlist__valid_read_format(self->evlist)) {
 		pr_err("non matching read_format");
-		goto out_close;
+		return -1;
 	}
 
-	self->size = input_stat.st_size;
 	return 0;
-
-out_close:
-	close(self->fd);
-	self->fd = -1;
-	return -1;
 }
 
 void perf_session__set_id_hdr_size(struct perf_session *session)
@@ -110,35 +72,35 @@ struct perf_session *perf_session__new(struct perf_data_file *file,
 				       bool repipe, struct perf_tool *tool)
 {
 	struct perf_session *self;
-	const char *filename = file->path;
-	struct stat st;
-	size_t len;
-
-	if (!filename || !strlen(filename)) {
-		if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
-			filename = "-";
-		else
-			filename = "perf.data";
-	}
 
-	len = strlen(filename);
-	self = zalloc(sizeof(*self) + len);
-
-	if (self == NULL)
+	self = zalloc(sizeof(*self));
+	if (!self)
 		goto out;
 
-	memcpy(self->filename, filename, len);
 	self->repipe = repipe;
 	INIT_LIST_HEAD(&self->ordered_samples.samples);
 	INIT_LIST_HEAD(&self->ordered_samples.sample_cache);
 	INIT_LIST_HEAD(&self->ordered_samples.to_free);
 	machines__init(&self->machines);
 
-	if (perf_data_file__is_read(file)) {
-		if (perf_session__open(self, file->force) < 0)
+	if (file) {
+		if (perf_data_file__open(file))
 			goto out_delete;
-		perf_session__set_id_hdr_size(self);
-	} else if (perf_data_file__is_write(file)) {
+
+		self->fd       = file->fd;
+		self->fd_pipe  = file->is_pipe;
+		self->filename = file->path;
+		self->size     = file->size;
+
+		if (perf_data_file__is_read(file)) {
+			if (perf_session__open(self) < 0)
+				goto out_close;
+
+			perf_session__set_id_hdr_size(self);
+		}
+	}
+
+	if (!file || perf_data_file__is_write(file)) {
 		/*
 		 * In O_RDONLY mode this will be performed when reading the
 		 * kernel MMAP event, in perf_event__process_mmap().
@@ -153,10 +115,13 @@ struct perf_session *perf_session__new(struct perf_data_file *file,
 		tool->ordered_samples = false;
 	}
 
-out:
 	return self;
-out_delete:
+
+ out_close:
+	perf_data_file__close(file);
+ out_delete:
 	perf_session__delete(self);
+ out:
 	return NULL;
 }
 
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index f2f6251fd62c..e1ca2d0ae541 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -39,7 +39,7 @@ struct perf_session {
 	bool			fd_pipe;
 	bool			repipe;
 	struct ordered_samples	ordered_samples;
-	char			filename[1];
+	const char		*filename;
 };
 
 #define PRINT_IP_OPT_IP		(1<<0)
-- 
cgit 


From cc9784bd9fa9d8e27fdea61142398cb85ce401a8 Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Tue, 15 Oct 2013 16:27:34 +0200
Subject: perf session: Separating data file properties from session

Removing 'fd, fd_pipe, filename, size' from struct perf_session and
replacing them with struct perf_data_file object.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1381847254-28809-4-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-annotate.c     |  2 +-
 tools/perf/builtin-buildid-list.c |  2 +-
 tools/perf/builtin-record.c       |  1 -
 tools/perf/builtin-report.c       |  8 +++++---
 tools/perf/builtin-script.c       |  2 +-
 tools/perf/util/data.h            | 15 +++++++++++++++
 tools/perf/util/header.c          | 22 +++++++++++++---------
 tools/perf/util/session.c         | 36 +++++++++++++++++++-----------------
 tools/perf/util/session.h         |  5 +----
 9 files changed, 56 insertions(+), 37 deletions(-)

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 95df683d6074..03cfa592071f 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -259,7 +259,7 @@ static int __cmd_annotate(struct perf_annotate *ann)
 	}
 
 	if (total_nr_samples == 0) {
-		ui__error("The %s file has no samples!\n", session->filename);
+		ui__error("The %s file has no samples!\n", file.path);
 		goto out_delete;
 	}
 
diff --git a/tools/perf/builtin-buildid-list.c b/tools/perf/builtin-buildid-list.c
index 0164c1c3e834..ed3873b3e238 100644
--- a/tools/perf/builtin-buildid-list.c
+++ b/tools/perf/builtin-buildid-list.c
@@ -73,7 +73,7 @@ static int perf_session__list_build_ids(bool force, bool with_hits)
 	 * in pipe-mode, the only way to get the buildids is to parse
 	 * the record stream. Buildids are stored as RECORD_HEADER_BUILD_ID
 	 */
-	if (with_hits || session->fd_pipe)
+	if (with_hits || perf_data_file__is_pipe(&file))
 		perf_session__process_events(session, &build_id__mark_dso_hit_ops);
 
 	perf_session__fprintf_dsos_buildid(session, stdout, dso__skip_buildid, with_hits);
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 428e28f3e677..ab8d15e6e8cc 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -257,7 +257,6 @@ static int process_buildids(struct perf_record *rec)
 	if (size == 0)
 		return 0;
 
-	session->fd = file->fd;
 	return __perf_session__process_events(session, rec->post_processing_offset,
 					      size - rec->post_processing_offset,
 					      size, &build_id__mark_dso_hit_ops);
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 60d7f8ec8505..fa68a36bc461 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -368,8 +368,9 @@ static int perf_report__setup_sample_type(struct perf_report *rep)
 {
 	struct perf_session *self = rep->session;
 	u64 sample_type = perf_evlist__combined_sample_type(self->evlist);
+	bool is_pipe = perf_data_file__is_pipe(self->file);
 
-	if (!self->fd_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) {
+	if (!is_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) {
 		if (sort__has_parent) {
 			ui__error("Selected --sort parent, but no "
 				    "callchain data. Did you call "
@@ -392,7 +393,7 @@ static int perf_report__setup_sample_type(struct perf_report *rep)
 	}
 
 	if (sort__mode == SORT_MODE__BRANCH) {
-		if (!self->fd_pipe &&
+		if (!is_pipe &&
 		    !(sample_type & PERF_SAMPLE_BRANCH_STACK)) {
 			ui__error("Selected -b but no branch data. "
 				  "Did you call perf record without -b?\n");
@@ -488,6 +489,7 @@ static int __cmd_report(struct perf_report *rep)
 	struct map *kernel_map;
 	struct kmap *kernel_kmap;
 	const char *help = "For a higher level overview, try: perf report --sort comm,dso";
+	struct perf_data_file *file = session->file;
 
 	signal(SIGINT, sig_handler);
 
@@ -572,7 +574,7 @@ static int __cmd_report(struct perf_report *rep)
 		return 0;
 
 	if (nr_samples == 0) {
-		ui__error("The %s file has no samples!\n", session->filename);
+		ui__error("The %s file has no samples!\n", file->path);
 		return 0;
 	}
 
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index f0c77a199616..27de6068049d 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -1525,7 +1525,7 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
 			return -1;
 		}
 
-		input = open(session->filename, O_RDONLY);	/* input_name */
+		input = open(file.path, O_RDONLY);	/* input_name */
 		if (input < 0) {
 			perror("failed to open file");
 			return -1;
diff --git a/tools/perf/util/data.h b/tools/perf/util/data.h
index d6c262e42f47..8c2df80152a5 100644
--- a/tools/perf/util/data.h
+++ b/tools/perf/util/data.h
@@ -27,6 +27,21 @@ static inline bool perf_data_file__is_write(struct perf_data_file *file)
 	return file->mode == PERF_DATA_MODE_WRITE;
 }
 
+static inline int perf_data_file__is_pipe(struct perf_data_file *file)
+{
+	return file->is_pipe;
+}
+
+static inline int perf_data_file__fd(struct perf_data_file *file)
+{
+	return file->fd;
+}
+
+static inline unsigned long perf_data_file__size(struct perf_data_file *file)
+{
+	return file->size;
+}
+
 int perf_data_file__open(struct perf_data_file *file);
 void perf_data_file__close(struct perf_data_file *file);
 
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index c3e5a3b817ab..26d9520a0c1b 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -22,6 +22,7 @@
 #include "vdso.h"
 #include "strbuf.h"
 #include "build-id.h"
+#include "data.h"
 
 static bool no_buildid_cache = false;
 
@@ -2189,7 +2190,7 @@ int perf_header__fprintf_info(struct perf_session *session, FILE *fp, bool full)
 {
 	struct header_print_data hd;
 	struct perf_header *header = &session->header;
-	int fd = session->fd;
+	int fd = perf_data_file__fd(session->file);
 	hd.fp = fp;
 	hd.full = full;
 
@@ -2650,7 +2651,8 @@ static int perf_header__read_pipe(struct perf_session *session)
 	struct perf_header *header = &session->header;
 	struct perf_pipe_file_header f_header;
 
-	if (perf_file_header__read_pipe(&f_header, header, session->fd,
+	if (perf_file_header__read_pipe(&f_header, header,
+					perf_data_file__fd(session->file),
 					session->repipe) < 0) {
 		pr_debug("incompatible file format\n");
 		return -EINVAL;
@@ -2751,18 +2753,19 @@ static int perf_evlist__prepare_tracepoint_events(struct perf_evlist *evlist,
 
 int perf_session__read_header(struct perf_session *session)
 {
+	struct perf_data_file *file = session->file;
 	struct perf_header *header = &session->header;
 	struct perf_file_header	f_header;
 	struct perf_file_attr	f_attr;
 	u64			f_id;
 	int nr_attrs, nr_ids, i, j;
-	int fd = session->fd;
+	int fd = perf_data_file__fd(file);
 
 	session->evlist = perf_evlist__new();
 	if (session->evlist == NULL)
 		return -ENOMEM;
 
-	if (session->fd_pipe)
+	if (perf_data_file__is_pipe(file))
 		return perf_header__read_pipe(session);
 
 	if (perf_file_header__read(&f_header, header, fd) < 0)
@@ -2777,7 +2780,7 @@ int perf_session__read_header(struct perf_session *session)
 	if (f_header.data.size == 0) {
 		pr_warning("WARNING: The %s file's data size field is 0 which is unexpected.\n"
 			   "Was the 'perf record' command properly terminated?\n",
-			   session->filename);
+			   file->path);
 	}
 
 	nr_attrs = f_header.attrs.size / f_header.attr_size;
@@ -2990,18 +2993,19 @@ int perf_event__process_tracing_data(struct perf_tool *tool __maybe_unused,
 				     struct perf_session *session)
 {
 	ssize_t size_read, padding, size = event->tracing_data.size;
-	off_t offset = lseek(session->fd, 0, SEEK_CUR);
+	int fd = perf_data_file__fd(session->file);
+	off_t offset = lseek(fd, 0, SEEK_CUR);
 	char buf[BUFSIZ];
 
 	/* setup for reading amidst mmap */
-	lseek(session->fd, offset + sizeof(struct tracing_data_event),
+	lseek(fd, offset + sizeof(struct tracing_data_event),
 	      SEEK_SET);
 
-	size_read = trace_report(session->fd, &session->pevent,
+	size_read = trace_report(fd, &session->pevent,
 				 session->repipe);
 	padding = PERF_ALIGN(size_read, sizeof(u64)) - size_read;
 
-	if (readn(session->fd, buf, padding) < 0) {
+	if (readn(fd, buf, padding) < 0) {
 		pr_err("%s: reading input file", __func__);
 		return -1;
 	}
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index d857c18d2eeb..19fc71678c8e 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -18,17 +18,16 @@
 
 static int perf_session__open(struct perf_session *self)
 {
-	if (self->fd_pipe) {
-		if (perf_session__read_header(self) < 0)
-			pr_err("incompatible file format (rerun with -v to learn more)");
-		return 0;
-	}
+	struct perf_data_file *file = self->file;
 
 	if (perf_session__read_header(self) < 0) {
 		pr_err("incompatible file format (rerun with -v to learn more)");
 		return -1;
 	}
 
+	if (perf_data_file__is_pipe(file))
+		return 0;
+
 	if (!perf_evlist__valid_sample_type(self->evlist)) {
 		pr_err("non matching sample_type");
 		return -1;
@@ -87,10 +86,7 @@ struct perf_session *perf_session__new(struct perf_data_file *file,
 		if (perf_data_file__open(file))
 			goto out_delete;
 
-		self->fd       = file->fd;
-		self->fd_pipe  = file->is_pipe;
-		self->filename = file->path;
-		self->size     = file->size;
+		self->file = file;
 
 		if (perf_data_file__is_read(file)) {
 			if (perf_session__open(self) < 0)
@@ -158,7 +154,8 @@ void perf_session__delete(struct perf_session *self)
 	perf_session__delete_threads(self);
 	perf_session_env__delete(&self->header.env);
 	machines__exit(&self->machines);
-	close(self->fd);
+	if (self->file)
+		perf_data_file__close(self->file);
 	free(self);
 	vdso__exit();
 }
@@ -1015,6 +1012,7 @@ static int perf_session_deliver_event(struct perf_session *session,
 static int perf_session__process_user_event(struct perf_session *session, union perf_event *event,
 					    struct perf_tool *tool, u64 file_offset)
 {
+	int fd = perf_data_file__fd(session->file);
 	int err;
 
 	dump_event(session, event, file_offset, NULL);
@@ -1028,7 +1026,7 @@ static int perf_session__process_user_event(struct perf_session *session, union
 		return err;
 	case PERF_RECORD_HEADER_TRACING_DATA:
 		/* setup for reading amidst mmap */
-		lseek(session->fd, file_offset, SEEK_SET);
+		lseek(fd, file_offset, SEEK_SET);
 		return tool->tracing_data(tool, event, session);
 	case PERF_RECORD_HEADER_BUILD_ID:
 		return tool->build_id(tool, event, session);
@@ -1154,6 +1152,7 @@ volatile int session_done;
 static int __perf_session__process_pipe_events(struct perf_session *self,
 					       struct perf_tool *tool)
 {
+	int fd = perf_data_file__fd(self->file);
 	union perf_event *event;
 	uint32_t size, cur_size = 0;
 	void *buf = NULL;
@@ -1172,7 +1171,7 @@ static int __perf_session__process_pipe_events(struct perf_session *self,
 		return -errno;
 more:
 	event = buf;
-	err = readn(self->fd, event, sizeof(struct perf_event_header));
+	err = readn(fd, event, sizeof(struct perf_event_header));
 	if (err <= 0) {
 		if (err == 0)
 			goto done;
@@ -1204,7 +1203,7 @@ more:
 	p += sizeof(struct perf_event_header);
 
 	if (size - sizeof(struct perf_event_header)) {
-		err = readn(self->fd, p, size - sizeof(struct perf_event_header));
+		err = readn(fd, p, size - sizeof(struct perf_event_header));
 		if (err <= 0) {
 			if (err == 0) {
 				pr_err("unexpected end of event stream\n");
@@ -1285,6 +1284,7 @@ int __perf_session__process_events(struct perf_session *session,
 				   u64 data_offset, u64 data_size,
 				   u64 file_size, struct perf_tool *tool)
 {
+	int fd = perf_data_file__fd(session->file);
 	u64 head, page_offset, file_offset, file_pos, progress_next;
 	int err, mmap_prot, mmap_flags, map_idx = 0;
 	size_t	mmap_size;
@@ -1317,7 +1317,7 @@ int __perf_session__process_events(struct perf_session *session,
 		mmap_flags = MAP_PRIVATE;
 	}
 remap:
-	buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, session->fd,
+	buf = mmap(NULL, mmap_size, mmap_prot, mmap_flags, fd,
 		   file_offset);
 	if (buf == MAP_FAILED) {
 		pr_err("failed to mmap file\n");
@@ -1382,16 +1382,17 @@ out_err:
 int perf_session__process_events(struct perf_session *self,
 				 struct perf_tool *tool)
 {
+	u64 size = perf_data_file__size(self->file);
 	int err;
 
 	if (perf_session__register_idle_thread(self) == NULL)
 		return -ENOMEM;
 
-	if (!self->fd_pipe)
+	if (!perf_data_file__is_pipe(self->file))
 		err = __perf_session__process_events(self,
 						     self->header.data_offset,
 						     self->header.data_size,
-						     self->size, tool);
+						     size, tool);
 	else
 		err = __perf_session__process_pipe_events(self, tool);
 
@@ -1615,13 +1616,14 @@ int perf_session__cpu_bitmap(struct perf_session *session,
 void perf_session__fprintf_info(struct perf_session *session, FILE *fp,
 				bool full)
 {
+	int fd = perf_data_file__fd(session->file);
 	struct stat st;
 	int ret;
 
 	if (session == NULL || fp == NULL)
 		return;
 
-	ret = fstat(session->fd, &st);
+	ret = fstat(fd, &st);
 	if (ret == -1)
 		return;
 
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index e1ca2d0ae541..27c74d38b868 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -30,16 +30,13 @@ struct ordered_samples {
 
 struct perf_session {
 	struct perf_header	header;
-	unsigned long		size;
 	struct machines		machines;
 	struct perf_evlist	*evlist;
 	struct pevent		*pevent;
 	struct events_stats	stats;
-	int			fd;
-	bool			fd_pipe;
 	bool			repipe;
 	struct ordered_samples	ordered_samples;
-	const char		*filename;
+	struct perf_data_file	*file;
 };
 
 #define PRINT_IP_OPT_IP		(1<<0)
-- 
cgit 


From 91e95617429cb272fd908b1928a1915b37b9655f Mon Sep 17 00:00:00 2001
From: Waiman Long <Waiman.Long@hp.com>
Date: Fri, 18 Oct 2013 10:38:48 -0400
Subject: perf report: Add --max-stack option to limit callchain stack scan

When callgraph data was included in the perf data file, it may take a
long time to scan all those data and merge them together especially if
the stored callchains are long and the perf data file itself is large,
like a Gbyte or so.

The callchain stack is currently limited to PERF_MAX_STACK_DEPTH (127).
This is a large value. Usually the callgraph data that developers are
most interested in are the first few levels, the rests are usually not
looked at.

This patch adds a new --max-stack option to perf-report to limit the
depth of callchain stack data to look at to reduce the time it takes for
perf-report to finish its processing. It trades the presence of trailing
stack information with faster speed.

The following table shows the elapsed time of doing perf-report on a
perf.data file of size 985,531,828 bytes.

  --max_stack   Elapsed Time    Output data size
  -----------   ------------    ----------------
  not set        88.0s          124,422,651
  64             87.5s          116,303,213
  32             87.2s          112,023,804
  16             86.6s           94,326,380
  8              59.9s           33,697,248
  4              40.7s           10,116,637
  -g none        27.1s            2,555,810

Signed-off-by: Waiman Long <Waiman.Long@hp.com>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Aswin Chandramouleeswaran <aswin@hp.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Scott J Norton <scott.norton@hp.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1382107129-2010-4-git-send-email-Waiman.Long@hp.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-report.txt |  8 ++++++++
 tools/perf/builtin-report.c              | 22 +++++++++++++++++-----
 tools/perf/builtin-top.c                 |  3 ++-
 tools/perf/util/machine.c                | 14 +++++++++-----
 tools/perf/util/machine.h                |  3 ++-
 tools/perf/util/session.c                |  3 ++-
 6 files changed, 40 insertions(+), 13 deletions(-)

diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index be5ad87b6c3d..10a279871251 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -141,6 +141,14 @@ OPTIONS
 
 	Default: fractal,0.5,callee,function.
 
+--max-stack::
+	Set the stack depth limit when parsing the callchain, anything
+	beyond the specified depth will be ignored. This is a trade-off
+	between information loss and faster processing especially for
+	workloads that can have a very long callchain stack.
+
+	Default: 127
+
 -G::
 --inverted::
         alias for inverted caller based call graph.
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index fa68a36bc461..81addcabb356 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -49,6 +49,7 @@ struct perf_report {
 	bool			show_threads;
 	bool			inverted_callchain;
 	bool			mem_mode;
+	int			max_stack;
 	struct perf_read_values	show_threads_values;
 	const char		*pretty_printing_style;
 	const char		*cpu_list;
@@ -90,7 +91,8 @@ static int perf_report__add_mem_hist_entry(struct perf_tool *tool,
 	if ((sort__has_parent || symbol_conf.use_callchain) &&
 	    sample->callchain) {
 		err = machine__resolve_callchain(machine, evsel, al->thread,
-						 sample, &parent, al);
+						 sample, &parent, al,
+						 rep->max_stack);
 		if (err)
 			return err;
 	}
@@ -181,7 +183,8 @@ static int perf_report__add_branch_hist_entry(struct perf_tool *tool,
 	if ((sort__has_parent || symbol_conf.use_callchain)
 	    && sample->callchain) {
 		err = machine__resolve_callchain(machine, evsel, al->thread,
-						 sample, &parent, al);
+						 sample, &parent, al,
+						 rep->max_stack);
 		if (err)
 			return err;
 	}
@@ -244,18 +247,21 @@ out:
 	return err;
 }
 
-static int perf_evsel__add_hist_entry(struct perf_evsel *evsel,
+static int perf_evsel__add_hist_entry(struct perf_tool *tool,
+				      struct perf_evsel *evsel,
 				      struct addr_location *al,
 				      struct perf_sample *sample,
 				      struct machine *machine)
 {
+	struct perf_report *rep = container_of(tool, struct perf_report, tool);
 	struct symbol *parent = NULL;
 	int err = 0;
 	struct hist_entry *he;
 
 	if ((sort__has_parent || symbol_conf.use_callchain) && sample->callchain) {
 		err = machine__resolve_callchain(machine, evsel, al->thread,
-						 sample, &parent, al);
+						 sample, &parent, al,
+						 rep->max_stack);
 		if (err)
 			return err;
 	}
@@ -332,7 +338,8 @@ static int process_sample_event(struct perf_tool *tool,
 		if (al.map != NULL)
 			al.map->dso->hit = 1;
 
-		ret = perf_evsel__add_hist_entry(evsel, &al, sample, machine);
+		ret = perf_evsel__add_hist_entry(tool, evsel, &al, sample,
+						 machine);
 		if (ret < 0)
 			pr_debug("problem incrementing symbol period, skipping event\n");
 	}
@@ -772,6 +779,7 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 			.ordered_samples = true,
 			.ordering_requires_timestamps = true,
 		},
+		.max_stack		 = PERF_MAX_STACK_DEPTH,
 		.pretty_printing_style	 = "normal",
 	};
 	const struct option options[] = {
@@ -812,6 +820,10 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 	OPT_CALLBACK_DEFAULT('g', "call-graph", &report, "output_type,min_percent[,print_limit],call_order",
 		     "Display callchains using output_type (graph, flat, fractal, or none) , min percent threshold, optional print limit, callchain order, key (function or address). "
 		     "Default: fractal,0.5,callee,function", &parse_callchain_opt, callchain_default_opt),
+	OPT_INTEGER(0, "max-stack", &report.max_stack,
+		    "Set the maximum stack depth when parsing the callchain, "
+		    "anything beyond the specified depth will be ignored. "
+		    "Default: " __stringify(PERF_MAX_STACK_DEPTH)),
 	OPT_BOOLEAN('G', "inverted", &report.inverted_callchain,
 		    "alias for inverted call graph"),
 	OPT_CALLBACK(0, "ignore-callees", NULL, "regex",
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index d934f707ee74..112cb7d68e64 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -770,7 +770,8 @@ static void perf_event__process_sample(struct perf_tool *tool,
 		    sample->callchain) {
 			err = machine__resolve_callchain(machine, evsel,
 							 al.thread, sample,
-							 &parent, &al);
+							 &parent, &al,
+							 PERF_MAX_STACK_DEPTH);
 			if (err)
 				return;
 		}
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 6b861aefd99a..ea93425cce95 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1253,10 +1253,12 @@ static int machine__resolve_callchain_sample(struct machine *machine,
 					     struct thread *thread,
 					     struct ip_callchain *chain,
 					     struct symbol **parent,
-					     struct addr_location *root_al)
+					     struct addr_location *root_al,
+					     int max_stack)
 {
 	u8 cpumode = PERF_RECORD_MISC_USER;
-	unsigned int i;
+	int chain_nr = min(max_stack, (int)chain->nr);
+	int i;
 	int err;
 
 	callchain_cursor_reset(&callchain_cursor);
@@ -1266,7 +1268,7 @@ static int machine__resolve_callchain_sample(struct machine *machine,
 		return 0;
 	}
 
-	for (i = 0; i < chain->nr; i++) {
+	for (i = 0; i < chain_nr; i++) {
 		u64 ip;
 		struct addr_location al;
 
@@ -1338,12 +1340,14 @@ int machine__resolve_callchain(struct machine *machine,
 			       struct thread *thread,
 			       struct perf_sample *sample,
 			       struct symbol **parent,
-			       struct addr_location *root_al)
+			       struct addr_location *root_al,
+			       int max_stack)
 {
 	int ret;
 
 	ret = machine__resolve_callchain_sample(machine, thread,
-						sample->callchain, parent, root_al);
+						sample->callchain, parent,
+						root_al, max_stack);
 	if (ret)
 		return ret;
 
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h
index d44c09bdc45e..4c1f5d567f54 100644
--- a/tools/perf/util/machine.h
+++ b/tools/perf/util/machine.h
@@ -92,7 +92,8 @@ int machine__resolve_callchain(struct machine *machine,
 			       struct thread *thread,
 			       struct perf_sample *sample,
 			       struct symbol **parent,
-			       struct addr_location *root_al);
+			       struct addr_location *root_al,
+			       int max_stack);
 
 /*
  * Default guest kernel is defined by parameter --guestkallsyms
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 19fc71678c8e..854c5aa4db0d 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1512,7 +1512,8 @@ void perf_evsel__print_ip(struct perf_evsel *evsel, union perf_event *event,
 	if (symbol_conf.use_callchain && sample->callchain) {
 
 		if (machine__resolve_callchain(machine, evsel, al.thread,
-					       sample, NULL, NULL) != 0) {
+					       sample, NULL, NULL,
+					       PERF_MAX_STACK_DEPTH) != 0) {
 			if (verbose)
 				error("Failed to resolve callchain. Skipping\n");
 			return;
-- 
cgit 


From 5dbb6e81d85e55ee2b4cf523c1738e16f63e5400 Mon Sep 17 00:00:00 2001
From: Waiman Long <Waiman.Long@hp.com>
Date: Fri, 18 Oct 2013 10:38:49 -0400
Subject: perf top: Add --max-stack option to limit callchain stack scan

When the callgraph function is enabled (-G), it may take a long time to
scan all the stack data and merge them accordingly.

This patch adds a new --max-stack option to perf-top to limit the depth
of callchain stack data to look at to reduce the time it takes for
perf-top to finish its processing. It reduces the amount of information
provided to the user in exchange for faster speed.

Signed-off-by: Waiman Long <Waiman.Long@hp.com>
Acked-by: David Ahern <dsahern@gmail.com>
Tested-by: Davidlohr Bueso <davidlohr@hp.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Aswin Chandramouleeswaran <aswin@hp.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Scott J Norton <scott.norton@hp.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1382107129-2010-5-git-send-email-Waiman.Long@hp.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-top.txt | 8 ++++++++
 tools/perf/builtin-top.c              | 8 ++++++--
 tools/perf/util/top.h                 | 1 +
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/tools/perf/Documentation/perf-top.txt b/tools/perf/Documentation/perf-top.txt
index f65777c1f723..c16a09e2f182 100644
--- a/tools/perf/Documentation/perf-top.txt
+++ b/tools/perf/Documentation/perf-top.txt
@@ -158,6 +158,14 @@ Default is to monitor all CPUS.
 
 	Default: fractal,0.5,callee.
 
+--max-stack::
+	Set the stack depth limit when parsing the callchain, anything
+	beyond the specified depth will be ignored. This is a trade-off
+	between information loss and faster processing especially for
+	workloads that can have a very long callchain stack.
+
+	Default: 127
+
 --ignore-callees=<regex>::
         Ignore callees of the function(s) matching the given regex.
         This has the effect of collecting the callers of each such
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 112cb7d68e64..386d83324a8d 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -771,7 +771,7 @@ static void perf_event__process_sample(struct perf_tool *tool,
 			err = machine__resolve_callchain(machine, evsel,
 							 al.thread, sample,
 							 &parent, &al,
-							 PERF_MAX_STACK_DEPTH);
+							 top->max_stack);
 			if (err)
 				return;
 		}
@@ -1048,10 +1048,11 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
 			.user_freq	= UINT_MAX,
 			.user_interval	= ULLONG_MAX,
 			.freq		= 4000, /* 4 KHz */
-			.target		     = {
+			.target		= {
 				.uses_mmap   = true,
 			},
 		},
+		.max_stack	     = PERF_MAX_STACK_DEPTH,
 		.sym_pcnt_filter     = 5,
 	};
 	struct perf_record_opts *opts = &top.record_opts;
@@ -1110,6 +1111,9 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
 	OPT_CALLBACK_DEFAULT('G', "call-graph", &top.record_opts,
 			     "mode[,dump_size]", record_callchain_help,
 			     &parse_callchain_opt, "fp"),
+	OPT_INTEGER(0, "max-stack", &top.max_stack,
+		    "Set the maximum stack depth when parsing the callchain. "
+		    "Default: " __stringify(PERF_MAX_STACK_DEPTH)),
 	OPT_CALLBACK(0, "ignore-callees", NULL, "regex",
 		   "ignore callees of these functions in call graphs",
 		   report_parse_ignore_callees_opt),
diff --git a/tools/perf/util/top.h b/tools/perf/util/top.h
index b554ffc462b6..88cfeaff600b 100644
--- a/tools/perf/util/top.h
+++ b/tools/perf/util/top.h
@@ -24,6 +24,7 @@ struct perf_top {
 	u64		   exact_samples;
 	u64		   guest_us_samples, guest_kernel_samples;
 	int		   print_entries, count_filter, delay_secs;
+	int		   max_stack;
 	bool		   hide_kernel_symbols, hide_user_symbols, zero;
 	bool		   use_tui, use_stdio;
 	bool		   kptr_restrict_warned;
-- 
cgit 


From 0e790c64f37a1a43c147720bdfa03b7c5538e24a Mon Sep 17 00:00:00 2001
From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Date: Mon, 21 Oct 2013 18:22:24 -0200
Subject: Bluetooth: Add L2CAP channel to skb private data

Adding the channel to the skb private data makes possible to us know which
channel the skb we have came from.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/bluetooth.h | 1 +
 net/bluetooth/l2cap_sock.c        | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index bf2ddffdae2d..a707a0209df4 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -282,6 +282,7 @@ struct bt_skb_cb {
 	__u8 incoming;
 	__u16 expect;
 	__u8 force_active;
+	struct l2cap_chan *chan;
 	struct l2cap_ctrl control;
 	struct hci_req_ctrl req;
 	bdaddr_t bdaddr;
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index a159b0e05202..cba3162dc33d 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1174,6 +1174,8 @@ static struct sk_buff *l2cap_sock_alloc_skb_cb(struct l2cap_chan *chan,
 	if (!skb)
 		return ERR_PTR(err);
 
+	bt_cb(skb)->chan = chan;
+
 	return skb;
 }
 
-- 
cgit 


From 7f5396a774997a24e2adaffd973cfa5bd2b3e665 Mon Sep 17 00:00:00 2001
From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Date: Mon, 21 Oct 2013 18:22:25 -0200
Subject: Bluetooth: Use bt_cb(skb)->chan to send raw data back

Instead of accessing skb->sk in L2CAP core we now compare the channel
a skb belongs to and not send it back if the channel is same. This change
removes another struct socket usage from L2CAP core.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/l2cap_core.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index bb6d35e6b832..0cef67707838 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -2813,17 +2813,16 @@ static void l2cap_raw_recv(struct l2cap_conn *conn, struct sk_buff *skb)
 	mutex_lock(&conn->chan_lock);
 
 	list_for_each_entry(chan, &conn->chan_l, list) {
-		struct sock *sk = chan->sk;
 		if (chan->chan_type != L2CAP_CHAN_RAW)
 			continue;
 
-		/* Don't send frame to the socket it came from */
-		if (skb->sk == sk)
+		/* Don't send frame to the channel it came from */
+		if (bt_cb(skb)->chan == chan)
 			continue;
+
 		nskb = skb_clone(skb, GFP_KERNEL);
 		if (!nskb)
 			continue;
-
 		if (chan->ops->recv(chan, nskb))
 			kfree_skb(nskb);
 	}
-- 
cgit 


From d78a32a8fcf775111ccc9ba611a08ca5c29784b6 Mon Sep 17 00:00:00 2001
From: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Date: Mon, 21 Oct 2013 18:22:26 -0200
Subject: Bluetooth: Remove sk member from struct l2cap_chan

There is no access to chan->sk in L2CAP core now. This change marks the
end of the task of splitting L2CAP between Core and Socket, thus sk is now
gone from struct l2cap_chan.

Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 include/net/bluetooth/l2cap.h | 2 --
 net/bluetooth/l2cap_sock.c    | 2 --
 2 files changed, 4 deletions(-)

diff --git a/include/net/bluetooth/l2cap.h b/include/net/bluetooth/l2cap.h
index 3d922b938141..51329905bfaa 100644
--- a/include/net/bluetooth/l2cap.h
+++ b/include/net/bluetooth/l2cap.h
@@ -435,8 +435,6 @@ struct l2cap_seq_list {
 #define L2CAP_SEQ_LIST_TAIL	0x8000
 
 struct l2cap_chan {
-	struct sock *sk;
-
 	struct l2cap_conn	*conn;
 	struct hci_conn		*hs_hcon;
 	struct hci_chan		*hs_hchan;
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index cba3162dc33d..7cc24d263caa 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1374,8 +1374,6 @@ static struct sock *l2cap_sock_alloc(struct net *net, struct socket *sock,
 
 	l2cap_chan_hold(chan);
 
-	chan->sk = sk;
-
 	l2cap_pi(sk)->chan = chan;
 
 	return sk;
-- 
cgit 


From 5eccdfaabcf44f71702ba033d9c24821111749e1 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sat, 19 Oct 2013 22:05:31 -0700
Subject: nf_tables*.h: Remove extern from function prototypes

There are a mix of function prototypes with and without extern
in the kernel sources.  Standardize on not using extern for
function prototypes.

Function prototypes don't need to be written with extern.
extern is assumed by the compiler.  Its use is as unnecessary as
using auto to declare automatic/local variables in a block.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/netfilter/nf_tables.h      | 55 ++++++++++++++++------------------
 include/net/netfilter/nf_tables_core.h | 28 ++++++++---------
 2 files changed, 40 insertions(+), 43 deletions(-)

diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index 54c4a5cafb64..5a91abfc0c30 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -91,13 +91,11 @@ struct nft_data_desc {
 	unsigned int			len;
 };
 
-extern int nft_data_init(const struct nft_ctx *ctx, struct nft_data *data,
-			 struct nft_data_desc *desc, const struct nlattr *nla);
-extern void nft_data_uninit(const struct nft_data *data,
-			    enum nft_data_types type);
-extern int nft_data_dump(struct sk_buff *skb, int attr,
-			 const struct nft_data *data,
-			 enum nft_data_types type, unsigned int len);
+int nft_data_init(const struct nft_ctx *ctx, struct nft_data *data,
+		  struct nft_data_desc *desc, const struct nlattr *nla);
+void nft_data_uninit(const struct nft_data *data, enum nft_data_types type);
+int nft_data_dump(struct sk_buff *skb, int attr, const struct nft_data *data,
+		  enum nft_data_types type, unsigned int len);
 
 static inline enum nft_data_types nft_dreg_to_type(enum nft_registers reg)
 {
@@ -109,12 +107,11 @@ static inline enum nft_registers nft_type_to_reg(enum nft_data_types type)
 	return type == NFT_DATA_VERDICT ? NFT_REG_VERDICT : NFT_REG_1;
 }
 
-extern int nft_validate_input_register(enum nft_registers reg);
-extern int nft_validate_output_register(enum nft_registers reg);
-extern int nft_validate_data_load(const struct nft_ctx *ctx,
-				  enum nft_registers reg,
-				  const struct nft_data *data,
-				  enum nft_data_types type);
+int nft_validate_input_register(enum nft_registers reg);
+int nft_validate_output_register(enum nft_registers reg);
+int nft_validate_data_load(const struct nft_ctx *ctx, enum nft_registers reg,
+			   const struct nft_data *data,
+			   enum nft_data_types type);
 
 /**
  *	struct nft_set_elem - generic representation of set elements
@@ -183,8 +180,8 @@ struct nft_set_ops {
 	u32				features;
 };
 
-extern int nft_register_set(struct nft_set_ops *ops);
-extern void nft_unregister_set(struct nft_set_ops *ops);
+int nft_register_set(struct nft_set_ops *ops);
+void nft_unregister_set(struct nft_set_ops *ops);
 
 /**
  * 	struct nft_set - nf_tables set instance
@@ -220,8 +217,8 @@ static inline void *nft_set_priv(const struct nft_set *set)
 	return (void *)set->data;
 }
 
-extern struct nft_set *nf_tables_set_lookup(const struct nft_table *table,
-					    const struct nlattr *nla);
+struct nft_set *nf_tables_set_lookup(const struct nft_table *table,
+				     const struct nlattr *nla);
 
 /**
  *	struct nft_set_binding - nf_tables set binding
@@ -237,10 +234,10 @@ struct nft_set_binding {
 	const struct nft_chain		*chain;
 };
 
-extern int nf_tables_bind_set(const struct nft_ctx *ctx, struct nft_set *set,
-			      struct nft_set_binding *binding);
-extern void nf_tables_unbind_set(const struct nft_ctx *ctx, struct nft_set *set,
-				 struct nft_set_binding *binding);
+int nf_tables_bind_set(const struct nft_ctx *ctx, struct nft_set *set,
+		       struct nft_set_binding *binding);
+void nf_tables_unbind_set(const struct nft_ctx *ctx, struct nft_set *set,
+			  struct nft_set_binding *binding);
 
 
 /**
@@ -446,8 +443,8 @@ static inline struct nft_base_chain *nft_base_chain(const struct nft_chain *chai
 	return container_of(chain, struct nft_base_chain, chain);
 }
 
-extern unsigned int nft_do_chain_pktinfo(struct nft_pktinfo *pkt,
-					 const struct nf_hook_ops *ops);
+unsigned int nft_do_chain_pktinfo(struct nft_pktinfo *pkt,
+				  const struct nf_hook_ops *ops);
 
 /**
  *	struct nft_table - nf_tables table
@@ -489,8 +486,8 @@ struct nft_af_info {
 	nf_hookfn			*hooks[NF_MAX_HOOKS];
 };
 
-extern int nft_register_afinfo(struct net *, struct nft_af_info *);
-extern void nft_unregister_afinfo(struct nft_af_info *);
+int nft_register_afinfo(struct net *, struct nft_af_info *);
+void nft_unregister_afinfo(struct nft_af_info *);
 
 struct nf_chain_type {
 	unsigned int		hook_mask;
@@ -501,11 +498,11 @@ struct nf_chain_type {
 	int			family;
 };
 
-extern int nft_register_chain_type(struct nf_chain_type *);
-extern void nft_unregister_chain_type(struct nf_chain_type *);
+int nft_register_chain_type(struct nf_chain_type *);
+void nft_unregister_chain_type(struct nf_chain_type *);
 
-extern int nft_register_expr(struct nft_expr_type *);
-extern void nft_unregister_expr(struct nft_expr_type *);
+int nft_register_expr(struct nft_expr_type *);
+void nft_unregister_expr(struct nft_expr_type *);
 
 #define MODULE_ALIAS_NFT_FAMILY(family)	\
 	MODULE_ALIAS("nft-afinfo-" __stringify(family))
diff --git a/include/net/netfilter/nf_tables_core.h b/include/net/netfilter/nf_tables_core.h
index fe7b16206a4e..cf2b7ae2b9d8 100644
--- a/include/net/netfilter/nf_tables_core.h
+++ b/include/net/netfilter/nf_tables_core.h
@@ -1,11 +1,11 @@
 #ifndef _NET_NF_TABLES_CORE_H
 #define _NET_NF_TABLES_CORE_H
 
-extern int nf_tables_core_module_init(void);
-extern void nf_tables_core_module_exit(void);
+int nf_tables_core_module_init(void);
+void nf_tables_core_module_exit(void);
 
-extern int nft_immediate_module_init(void);
-extern void nft_immediate_module_exit(void);
+int nft_immediate_module_init(void);
+void nft_immediate_module_exit(void);
 
 struct nft_cmp_fast_expr {
 	u32			data;
@@ -15,17 +15,17 @@ struct nft_cmp_fast_expr {
 
 extern const struct nft_expr_ops nft_cmp_fast_ops;
 
-extern int nft_cmp_module_init(void);
-extern void nft_cmp_module_exit(void);
+int nft_cmp_module_init(void);
+void nft_cmp_module_exit(void);
 
-extern int nft_lookup_module_init(void);
-extern void nft_lookup_module_exit(void);
+int nft_lookup_module_init(void);
+void nft_lookup_module_exit(void);
 
-extern int nft_bitwise_module_init(void);
-extern void nft_bitwise_module_exit(void);
+int nft_bitwise_module_init(void);
+void nft_bitwise_module_exit(void);
 
-extern int nft_byteorder_module_init(void);
-extern void nft_byteorder_module_exit(void);
+int nft_byteorder_module_init(void);
+void nft_byteorder_module_exit(void);
 
 struct nft_payload {
 	enum nft_payload_bases	base:8;
@@ -36,7 +36,7 @@ struct nft_payload {
 
 extern const struct nft_expr_ops nft_payload_fast_ops;
 
-extern int nft_payload_module_init(void);
-extern void nft_payload_module_exit(void);
+int nft_payload_module_init(void);
+void nft_payload_module_exit(void);
 
 #endif /* _NET_NF_TABLES_CORE_H */
-- 
cgit 


From 3c5b9caf3237b16a9e5019f523b284f056bc4f74 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 21 Oct 2013 11:09:26 +0900
Subject: net: tulip: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/dec/tulip/de2104x.c     | 1 -
 drivers/net/ethernet/dec/tulip/dmfe.c        | 3 ---
 drivers/net/ethernet/dec/tulip/tulip_core.c  | 1 -
 drivers/net/ethernet/dec/tulip/uli526x.c     | 2 --
 drivers/net/ethernet/dec/tulip/winbond-840.c | 3 ---
 drivers/net/ethernet/dec/tulip/xircom_cb.c   | 2 --
 6 files changed, 12 deletions(-)

diff --git a/drivers/net/ethernet/dec/tulip/de2104x.c b/drivers/net/ethernet/dec/tulip/de2104x.c
index eaab73cf27ca..38148b0e3a95 100644
--- a/drivers/net/ethernet/dec/tulip/de2104x.c
+++ b/drivers/net/ethernet/dec/tulip/de2104x.c
@@ -2110,7 +2110,6 @@ static void de_remove_one(struct pci_dev *pdev)
 	iounmap(de->regs);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 	free_netdev(dev);
 }
 
diff --git a/drivers/net/ethernet/dec/tulip/dmfe.c b/drivers/net/ethernet/dec/tulip/dmfe.c
index 83139307861c..5ad9e3e3c0b8 100644
--- a/drivers/net/ethernet/dec/tulip/dmfe.c
+++ b/drivers/net/ethernet/dec/tulip/dmfe.c
@@ -523,7 +523,6 @@ err_out_res:
 err_out_disable:
 	pci_disable_device(pdev);
 err_out_free:
-	pci_set_drvdata(pdev, NULL);
 	free_netdev(dev);
 
 	return err;
@@ -548,8 +547,6 @@ static void dmfe_remove_one(struct pci_dev *pdev)
 					db->buf_pool_ptr, db->buf_pool_dma_ptr);
 		pci_release_regions(pdev);
 		free_netdev(dev);	/* free board information */
-
-		pci_set_drvdata(pdev, NULL);
 	}
 
 	DMFE_DBUG(0, "dmfe_remove_one() exit", 0);
diff --git a/drivers/net/ethernet/dec/tulip/tulip_core.c b/drivers/net/ethernet/dec/tulip/tulip_core.c
index 4e8cfa2ac803..add05f14b38b 100644
--- a/drivers/net/ethernet/dec/tulip/tulip_core.c
+++ b/drivers/net/ethernet/dec/tulip/tulip_core.c
@@ -1939,7 +1939,6 @@ static void tulip_remove_one(struct pci_dev *pdev)
 	pci_iounmap(pdev, tp->base_addr);
 	free_netdev (dev);
 	pci_release_regions (pdev);
-	pci_set_drvdata (pdev, NULL);
 
 	/* pci_power_off (pdev, -1); */
 }
diff --git a/drivers/net/ethernet/dec/tulip/uli526x.c b/drivers/net/ethernet/dec/tulip/uli526x.c
index 93845afe1cea..a5397b130724 100644
--- a/drivers/net/ethernet/dec/tulip/uli526x.c
+++ b/drivers/net/ethernet/dec/tulip/uli526x.c
@@ -429,7 +429,6 @@ err_out_release:
 err_out_disable:
 	pci_disable_device(pdev);
 err_out_free:
-	pci_set_drvdata(pdev, NULL);
 	free_netdev(dev);
 
 	return err;
@@ -450,7 +449,6 @@ static void uli526x_remove_one(struct pci_dev *pdev)
 				db->buf_pool_ptr, db->buf_pool_dma_ptr);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 	free_netdev(dev);
 }
 
diff --git a/drivers/net/ethernet/dec/tulip/winbond-840.c b/drivers/net/ethernet/dec/tulip/winbond-840.c
index c7b04ecf5b49..62fe512bb216 100644
--- a/drivers/net/ethernet/dec/tulip/winbond-840.c
+++ b/drivers/net/ethernet/dec/tulip/winbond-840.c
@@ -468,7 +468,6 @@ static int w840_probe1(struct pci_dev *pdev, const struct pci_device_id *ent)
 	return 0;
 
 err_out_cleardev:
-	pci_set_drvdata(pdev, NULL);
 	pci_iounmap(pdev, ioaddr);
 err_out_free_res:
 	pci_release_regions(pdev);
@@ -1542,8 +1541,6 @@ static void w840_remove1(struct pci_dev *pdev)
 		pci_iounmap(pdev, np->base_addr);
 		free_netdev(dev);
 	}
-
-	pci_set_drvdata(pdev, NULL);
 }
 
 #ifdef CONFIG_PM
diff --git a/drivers/net/ethernet/dec/tulip/xircom_cb.c b/drivers/net/ethernet/dec/tulip/xircom_cb.c
index 9b84cb04fe5f..ab7ebac6fbea 100644
--- a/drivers/net/ethernet/dec/tulip/xircom_cb.c
+++ b/drivers/net/ethernet/dec/tulip/xircom_cb.c
@@ -289,7 +289,6 @@ out:
 err_unmap:
 	pci_iounmap(pdev, private->ioaddr);
 reg_fail:
-	pci_set_drvdata(pdev, NULL);
 	dma_free_coherent(d, 8192, private->tx_buffer, private->tx_dma_handle);
 tx_buf_fail:
 	dma_free_coherent(d, 8192, private->rx_buffer, private->rx_dma_handle);
@@ -317,7 +316,6 @@ static void xircom_remove(struct pci_dev *pdev)
 
 	unregister_netdev(dev);
 	pci_iounmap(pdev, card->ioaddr);
-	pci_set_drvdata(pdev, NULL);
 	dma_free_coherent(d, 8192, card->tx_buffer, card->tx_dma_handle);
 	dma_free_coherent(d, 8192, card->rx_buffer, card->rx_dma_handle);
 	free_netdev(dev);
-- 
cgit 


From 42b9023fc642f6590b6e23bea5f5f017aba114c5 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 21 Oct 2013 11:10:16 +0900
Subject: net: sundance: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/dlink/sundance.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/dlink/sundance.c b/drivers/net/ethernet/dlink/sundance.c
index bf3bf6f22c99..113cd799a131 100644
--- a/drivers/net/ethernet/dlink/sundance.c
+++ b/drivers/net/ethernet/dlink/sundance.c
@@ -703,7 +703,6 @@ err_out_unmap_tx:
 	dma_free_coherent(&pdev->dev, TX_TOTAL_SIZE,
 		np->tx_ring, np->tx_ring_dma);
 err_out_cleardev:
-	pci_set_drvdata(pdev, NULL);
 	pci_iounmap(pdev, ioaddr);
 err_out_res:
 	pci_release_regions(pdev);
@@ -1941,7 +1940,6 @@ static void sundance_remove1(struct pci_dev *pdev)
 	    pci_iounmap(pdev, np->base);
 	    pci_release_regions(pdev);
 	    free_netdev(dev);
-	    pci_set_drvdata(pdev, NULL);
 	}
 }
 
-- 
cgit 


From 5f258a1552d1a8fd263346635022fdf16aa06d6a Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 21 Oct 2013 11:11:14 +0900
Subject: net: dl2k: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/dlink/dl2k.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/dlink/dl2k.c b/drivers/net/ethernet/dlink/dl2k.c
index afa8e3af2c4d..4fb756d219f7 100644
--- a/drivers/net/ethernet/dlink/dl2k.c
+++ b/drivers/net/ethernet/dlink/dl2k.c
@@ -1746,7 +1746,6 @@ rio_remove1 (struct pci_dev *pdev)
 		pci_release_regions (pdev);
 		pci_disable_device (pdev);
 	}
-	pci_set_drvdata (pdev, NULL);
 }
 
 static struct pci_driver rio_driver = {
-- 
cgit 


From 806636f433ba0b0b22cd3eb277360fa56c0bfd3d Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 21 Oct 2013 11:11:44 +0900
Subject: net: be2net: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be_main.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index f0866e2cdd8d..393e3dc05a36 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -4204,7 +4204,6 @@ static void be_remove(struct pci_dev *pdev)
 
 	pci_disable_pcie_error_reporting(pdev);
 
-	pci_set_drvdata(pdev, NULL);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
 
@@ -4534,7 +4533,6 @@ ctrl_clean:
 	be_ctrl_cleanup(adapter);
 free_netdev:
 	free_netdev(netdev);
-	pci_set_drvdata(pdev, NULL);
 rel_reg:
 	pci_release_regions(pdev);
 disable_dev:
-- 
cgit 


From df2a6448e0cddd182c42e66da8b6f9b72df9133e Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 21 Oct 2013 11:12:15 +0900
Subject: net: fealnx: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/fealnx.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/fealnx.c b/drivers/net/ethernet/fealnx.c
index c706b7a9397e..4b22a9579f85 100644
--- a/drivers/net/ethernet/fealnx.c
+++ b/drivers/net/ethernet/fealnx.c
@@ -699,7 +699,6 @@ static void fealnx_remove_one(struct pci_dev *pdev)
 		pci_iounmap(pdev, np->mem);
 		free_netdev(dev);
 		pci_release_regions(pdev);
-		pci_set_drvdata(pdev, NULL);
 	} else
 		printk(KERN_ERR "fealnx: remove for unknown device\n");
 }
-- 
cgit 


From 3ee785f88ea5bc8b14ed16fb8b5682c6762f1c27 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 21 Oct 2013 11:12:38 +0900
Subject: net: icplus: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/icplus/ipg.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/icplus/ipg.c b/drivers/net/ethernet/icplus/ipg.c
index bdf5023724e7..25045ae07171 100644
--- a/drivers/net/ethernet/icplus/ipg.c
+++ b/drivers/net/ethernet/icplus/ipg.c
@@ -2183,7 +2183,6 @@ static void ipg_remove(struct pci_dev *pdev)
 
 	free_netdev(dev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 static const struct net_device_ops ipg_netdev_ops = {
-- 
cgit 


From 4722cd4d3036c7fd97af0d3aedc869746f1f0cb2 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 21 Oct 2013 11:13:07 +0900
Subject: net: e100: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/intel/e100.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/e100.c b/drivers/net/ethernet/intel/e100.c
index ada6e210279f..cbaba4442d4b 100644
--- a/drivers/net/ethernet/intel/e100.c
+++ b/drivers/net/ethernet/intel/e100.c
@@ -2985,7 +2985,6 @@ err_out_free_res:
 err_out_disable_pdev:
 	pci_disable_device(pdev);
 err_out_free_dev:
-	pci_set_drvdata(pdev, NULL);
 	free_netdev(netdev);
 	return err;
 }
@@ -3003,7 +3002,6 @@ static void e100_remove(struct pci_dev *pdev)
 		free_netdev(netdev);
 		pci_release_regions(pdev);
 		pci_disable_device(pdev);
-		pci_set_drvdata(pdev, NULL);
 	}
 }
 
-- 
cgit 


From 54fe9022dc4bb62b01d5e30acfda58503a7addc0 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 21 Oct 2013 11:13:33 +0900
Subject: net: jme: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/jme.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/jme.c b/drivers/net/ethernet/jme.c
index b56d2a29cd0e..f5685c0d0579 100644
--- a/drivers/net/ethernet/jme.c
+++ b/drivers/net/ethernet/jme.c
@@ -3192,7 +3192,6 @@ jme_init_one(struct pci_dev *pdev,
 err_out_unmap:
 	iounmap(jme->regs);
 err_out_free_netdev:
-	pci_set_drvdata(pdev, NULL);
 	free_netdev(netdev);
 err_out_release_regions:
 	pci_release_regions(pdev);
@@ -3210,7 +3209,6 @@ jme_remove_one(struct pci_dev *pdev)
 
 	unregister_netdev(netdev);
 	iounmap(jme->regs);
-	pci_set_drvdata(pdev, NULL);
 	free_netdev(netdev);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-- 
cgit 


From 68e35d8c15bfe0e8479c050aeb7fd7b3190a1d30 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 21 Oct 2013 11:13:58 +0900
Subject: net: skge: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/marvell/skge.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/marvell/skge.c b/drivers/net/ethernet/marvell/skge.c
index ecc7f7b696b8..597846193869 100644
--- a/drivers/net/ethernet/marvell/skge.c
+++ b/drivers/net/ethernet/marvell/skge.c
@@ -4046,7 +4046,6 @@ err_out_free_regions:
 	pci_release_regions(pdev);
 err_out_disable_pdev:
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 err_out:
 	return err;
 }
@@ -4090,7 +4089,6 @@ static void skge_remove(struct pci_dev *pdev)
 
 	iounmap(hw->regs);
 	kfree(hw);
-	pci_set_drvdata(pdev, NULL);
 }
 
 #ifdef CONFIG_PM_SLEEP
-- 
cgit 


From 21d35d212469c3138f8916f7e47b779313d79751 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 21 Oct 2013 11:14:23 +0900
Subject: net: sky2: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/marvell/sky2.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c
index e09a8c6f8536..a7df981d2123 100644
--- a/drivers/net/ethernet/marvell/sky2.c
+++ b/drivers/net/ethernet/marvell/sky2.c
@@ -5081,7 +5081,6 @@ err_out_free_regions:
 err_out_disable:
 	pci_disable_device(pdev);
 err_out:
-	pci_set_drvdata(pdev, NULL);
 	return err;
 }
 
@@ -5124,8 +5123,6 @@ static void sky2_remove(struct pci_dev *pdev)
 
 	iounmap(hw->regs);
 	kfree(hw);
-
-	pci_set_drvdata(pdev, NULL);
 }
 
 static int sky2_suspend(struct device *dev)
-- 
cgit 


From c95984083a656fb82b9e1500748fd0b3f2d1d28c Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 21 Oct 2013 11:14:45 +0900
Subject: net: ksz884x: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/micrel/ksz884x.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/micrel/ksz884x.c b/drivers/net/ethernet/micrel/ksz884x.c
index 8ebc352bcbe6..6462dc5191ef 100644
--- a/drivers/net/ethernet/micrel/ksz884x.c
+++ b/drivers/net/ethernet/micrel/ksz884x.c
@@ -7150,8 +7150,6 @@ static void pcidev_exit(struct pci_dev *pdev)
 	struct platform_info *info = pci_get_drvdata(pdev);
 	struct dev_info *hw_priv = &info->dev_info;
 
-	pci_set_drvdata(pdev, NULL);
-
 	release_mem_region(pci_resource_start(pdev, 0),
 		pci_resource_len(pdev, 0));
 	for (i = 0; i < hw_priv->hw.dev_count; i++) {
-- 
cgit 


From ecb22e11c10478502c142a2299d7c8353527da0b Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 21 Oct 2013 11:15:08 +0900
Subject: net: myri10ge: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/myricom/myri10ge/myri10ge.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
index 1975550c3634..68026f7e8ba3 100644
--- a/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
+++ b/drivers/net/ethernet/myricom/myri10ge/myri10ge.c
@@ -4208,7 +4208,6 @@ static void myri10ge_remove(struct pci_dev *pdev)
 	set_fw_name(mgp, NULL, false);
 	free_netdev(netdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 #define PCI_DEVICE_ID_MYRICOM_MYRI10GE_Z8E 	0x0008
-- 
cgit 


From e146aaa62f3675a4bf14e86772514e650e110d9b Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 21 Oct 2013 11:15:34 +0900
Subject: net: natsemi: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/natsemi/natsemi.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/natsemi/natsemi.c b/drivers/net/ethernet/natsemi/natsemi.c
index 7a5e295588b0..64ec2a437f46 100644
--- a/drivers/net/ethernet/natsemi/natsemi.c
+++ b/drivers/net/ethernet/natsemi/natsemi.c
@@ -970,7 +970,6 @@ static int natsemi_probe1(struct pci_dev *pdev, const struct pci_device_id *ent)
 
  err_ioremap:
 	pci_release_regions(pdev);
-	pci_set_drvdata(pdev, NULL);
 
  err_pci_request_regions:
 	free_netdev(dev);
@@ -3220,7 +3219,6 @@ static void natsemi_remove1(struct pci_dev *pdev)
 	pci_release_regions (pdev);
 	iounmap(ioaddr);
 	free_netdev (dev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 #ifdef CONFIG_PM
-- 
cgit 


From 4f12b2f573c5f7ed83e750a40da64ca14767fb91 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 21 Oct 2013 11:16:38 +0900
Subject: net: neterion: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/neterion/s2io.c           | 2 --
 drivers/net/ethernet/neterion/vxge/vxge-main.c | 2 --
 2 files changed, 4 deletions(-)

diff --git a/drivers/net/ethernet/neterion/s2io.c b/drivers/net/ethernet/neterion/s2io.c
index 51b00941302c..9eeddbd0b2c7 100644
--- a/drivers/net/ethernet/neterion/s2io.c
+++ b/drivers/net/ethernet/neterion/s2io.c
@@ -8185,7 +8185,6 @@ mem_alloc_failed:
 	free_shared_mem(sp);
 	pci_disable_device(pdev);
 	pci_release_regions(pdev);
-	pci_set_drvdata(pdev, NULL);
 	free_netdev(dev);
 
 	return ret;
@@ -8221,7 +8220,6 @@ static void s2io_rem_nic(struct pci_dev *pdev)
 	iounmap(sp->bar0);
 	iounmap(sp->bar1);
 	pci_release_regions(pdev);
-	pci_set_drvdata(pdev, NULL);
 	free_netdev(dev);
 	pci_disable_device(pdev);
 }
diff --git a/drivers/net/ethernet/neterion/vxge/vxge-main.c b/drivers/net/ethernet/neterion/vxge/vxge-main.c
index 5a20eaf903dd..8614eeb7de81 100644
--- a/drivers/net/ethernet/neterion/vxge/vxge-main.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-main.c
@@ -4739,7 +4739,6 @@ _exit6:
 _exit5:
 	vxge_device_unregister(hldev);
 _exit4:
-	pci_set_drvdata(pdev, NULL);
 	vxge_hw_device_terminate(hldev);
 	pci_disable_sriov(pdev);
 _exit3:
@@ -4782,7 +4781,6 @@ static void vxge_remove(struct pci_dev *pdev)
 		vxge_free_mac_add_list(&vdev->vpaths[i]);
 
 	vxge_device_unregister(hldev);
-	pci_set_drvdata(pdev, NULL);
 	/* Do not call pci_disable_sriov here, as it will break child devices */
 	vxge_hw_device_terminate(hldev);
 	iounmap(vdev->bar0);
-- 
cgit 


From 390e1b86abbda7c0195bbe89dc5d2aa38134fdc1 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 21 Oct 2013 11:17:07 +0900
Subject: net: packetengines: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/packetengines/hamachi.c   | 1 -
 drivers/net/ethernet/packetengines/yellowfin.c | 2 --
 2 files changed, 3 deletions(-)

diff --git a/drivers/net/ethernet/packetengines/hamachi.c b/drivers/net/ethernet/packetengines/hamachi.c
index cac33e5f9bc2..b6bdeb3c1971 100644
--- a/drivers/net/ethernet/packetengines/hamachi.c
+++ b/drivers/net/ethernet/packetengines/hamachi.c
@@ -1910,7 +1910,6 @@ static void hamachi_remove_one(struct pci_dev *pdev)
 		iounmap(hmp->base);
 		free_netdev(dev);
 		pci_release_regions(pdev);
-		pci_set_drvdata(pdev, NULL);
 	}
 }
 
diff --git a/drivers/net/ethernet/packetengines/yellowfin.c b/drivers/net/ethernet/packetengines/yellowfin.c
index d28593b1fc3e..07a890eb72ad 100644
--- a/drivers/net/ethernet/packetengines/yellowfin.c
+++ b/drivers/net/ethernet/packetengines/yellowfin.c
@@ -513,7 +513,6 @@ err_out_unmap_rx:
 err_out_unmap_tx:
         pci_free_consistent(pdev, TX_TOTAL_SIZE, np->tx_ring, np->tx_ring_dma);
 err_out_cleardev:
-	pci_set_drvdata(pdev, NULL);
 	pci_iounmap(pdev, ioaddr);
 err_out_free_res:
 	pci_release_regions(pdev);
@@ -1392,7 +1391,6 @@ static void yellowfin_remove_one(struct pci_dev *pdev)
 	pci_release_regions (pdev);
 
 	free_netdev (dev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 
-- 
cgit 


From 76ca4c238cf5858f8ba5bcd24c94c23717f1e14e Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Mon, 14 Oct 2013 07:09:35 -0700
Subject: xfs: always take the iolock around xfs_setattr_size

There is no reason to conditionally take the iolock inside xfs_setattr_size
when we can let the caller handle it unconditionally, which just incrases
the lock hold time for the case where it was previously taken internally
by a few instructions.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_bmap_util.c |  3 +--
 fs/xfs/xfs_file.c      |  2 +-
 fs/xfs/xfs_iops.c      | 39 +++++++++++++++++++++------------------
 fs/xfs/xfs_iops.h      |  2 +-
 4 files changed, 24 insertions(+), 22 deletions(-)

diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index 97f952caea74..291e30cedfd3 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -1622,8 +1622,7 @@ xfs_change_file_space(
 		iattr.ia_valid = ATTR_SIZE;
 		iattr.ia_size = startoffset;
 
-		error = xfs_setattr_size(ip, &iattr,
-					 attr_flags | XFS_ATTR_NOLOCK);
+		error = xfs_setattr_size(ip, &iattr);
 		xfs_iunlock(ip, XFS_IOLOCK_EXCL);
 
 		if (error)
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 4c749ab543d0..c9179820c01b 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -852,7 +852,7 @@ xfs_file_fallocate(
 
 		iattr.ia_valid = ATTR_SIZE;
 		iattr.ia_size = new_size;
-		error = -xfs_setattr_size(ip, &iattr, XFS_ATTR_NOLOCK);
+		error = -xfs_setattr_size(ip, &iattr);
 	}
 
 out_unlock:
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 2b8952d9199b..52ecd1ccec9f 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -709,8 +709,7 @@ out_dqrele:
 int
 xfs_setattr_size(
 	struct xfs_inode	*ip,
-	struct iattr		*iattr,
-	int			flags)
+	struct iattr		*iattr)
 {
 	struct xfs_mount	*mp = ip->i_mount;
 	struct inode		*inode = VFS_I(ip);
@@ -733,15 +732,11 @@ xfs_setattr_size(
 	if (error)
 		return XFS_ERROR(error);
 
+	ASSERT(xfs_isilocked(ip, XFS_IOLOCK_EXCL));
 	ASSERT(S_ISREG(ip->i_d.di_mode));
 	ASSERT((mask & (ATTR_UID|ATTR_GID|ATTR_ATIME|ATTR_ATIME_SET|
 			ATTR_MTIME_SET|ATTR_KILL_PRIV|ATTR_TIMES_SET)) == 0);
 
-	if (!(flags & XFS_ATTR_NOLOCK)) {
-		lock_flags |= XFS_IOLOCK_EXCL;
-		xfs_ilock(ip, lock_flags);
-	}
-
 	oldsize = inode->i_size;
 	newsize = iattr->ia_size;
 
@@ -750,12 +745,11 @@ xfs_setattr_size(
 	 */
 	if (newsize == 0 && oldsize == 0 && ip->i_d.di_nextents == 0) {
 		if (!(mask & (ATTR_CTIME|ATTR_MTIME)))
-			goto out_unlock;
+			return 0;
 
 		/*
 		 * Use the regular setattr path to update the timestamps.
 		 */
-		xfs_iunlock(ip, lock_flags);
 		iattr->ia_valid &= ~ATTR_SIZE;
 		return xfs_setattr_nonsize(ip, iattr, 0);
 	}
@@ -765,7 +759,7 @@ xfs_setattr_size(
 	 */
 	error = xfs_qm_dqattach(ip, 0);
 	if (error)
-		goto out_unlock;
+		return error;
 
 	/*
 	 * Now we can make the changes.  Before we join the inode to the
@@ -783,7 +777,7 @@ xfs_setattr_size(
 		 */
 		error = xfs_zero_eof(ip, newsize, oldsize);
 		if (error)
-			goto out_unlock;
+			return error;
 	}
 
 	/*
@@ -802,7 +796,7 @@ xfs_setattr_size(
 		error = -filemap_write_and_wait_range(VFS_I(ip)->i_mapping,
 						      ip->i_d.di_size, newsize);
 		if (error)
-			goto out_unlock;
+			return error;
 	}
 
 	/*
@@ -812,7 +806,7 @@ xfs_setattr_size(
 
 	error = -block_truncate_page(inode->i_mapping, newsize, xfs_get_blocks);
 	if (error)
-		goto out_unlock;
+		return error;
 
 	tp = xfs_trans_alloc(mp, XFS_TRANS_SETATTR_SIZE);
 	error = xfs_trans_reserve(tp, &M_RES(mp)->tr_itruncate, 0, 0);
@@ -916,12 +910,21 @@ out_trans_cancel:
 
 STATIC int
 xfs_vn_setattr(
-	struct dentry	*dentry,
-	struct iattr	*iattr)
+	struct dentry		*dentry,
+	struct iattr		*iattr)
 {
-	if (iattr->ia_valid & ATTR_SIZE)
-		return -xfs_setattr_size(XFS_I(dentry->d_inode), iattr, 0);
-	return -xfs_setattr_nonsize(XFS_I(dentry->d_inode), iattr, 0);
+	struct xfs_inode	*ip = XFS_I(dentry->d_inode);
+	int			error;
+
+	if (iattr->ia_valid & ATTR_SIZE) {
+		xfs_ilock(ip, XFS_IOLOCK_EXCL);
+		error = xfs_setattr_size(ip, iattr);
+		xfs_iunlock(ip, XFS_IOLOCK_EXCL);
+	} else {
+		error = xfs_setattr_nonsize(ip, iattr, 0);
+	}
+
+	return -error;
 }
 
 STATIC int
diff --git a/fs/xfs/xfs_iops.h b/fs/xfs/xfs_iops.h
index d81fb41205ec..3e76dcba7a79 100644
--- a/fs/xfs/xfs_iops.h
+++ b/fs/xfs/xfs_iops.h
@@ -38,6 +38,6 @@ extern void xfs_setup_inode(struct xfs_inode *);
 
 extern int xfs_setattr_nonsize(struct xfs_inode *ip, struct iattr *vap,
 			       int flags);
-extern int xfs_setattr_size(struct xfs_inode *ip, struct iattr *vap, int flags);
+extern int xfs_setattr_size(struct xfs_inode *ip, struct iattr *vap);
 
 #endif /* __XFS_IOPS_H__ */
-- 
cgit 


From 001a3e73706fcb8c52dcca1d4742679384d04184 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Sat, 12 Oct 2013 00:55:05 -0700
Subject: xfs: remove the unused XFS_ATTR_NONBLOCK flag

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_ioctl.c | 3 ---
 fs/xfs/xfs_iops.h  | 1 -
 2 files changed, 4 deletions(-)

diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 668e8f4ccf5e..5a57e0c80b6b 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -661,9 +661,6 @@ xfs_ioc_space(
 	if (!S_ISREG(inode->i_mode))
 		return -XFS_ERROR(EINVAL);
 
-	if (filp->f_flags & (O_NDELAY|O_NONBLOCK))
-		attr_flags |= XFS_ATTR_NONBLOCK;
-
 	if (filp->f_flags & O_DSYNC)
 		attr_flags |= XFS_ATTR_SYNC;
 
diff --git a/fs/xfs/xfs_iops.h b/fs/xfs/xfs_iops.h
index 3e76dcba7a79..fe4013af2586 100644
--- a/fs/xfs/xfs_iops.h
+++ b/fs/xfs/xfs_iops.h
@@ -31,7 +31,6 @@ extern void xfs_setup_inode(struct xfs_inode *);
  * Internal setattr interfaces.
  */
 #define	XFS_ATTR_DMI		0x01	/* invocation from a DMI function */
-#define	XFS_ATTR_NONBLOCK	0x02	/* return EAGAIN if op would block */
 #define XFS_ATTR_NOLOCK		0x04	/* Don't grab any conflicting locks */
 #define XFS_ATTR_NOACL		0x08	/* Don't call xfs_acl_chmod */
 #define XFS_ATTR_SYNC		0x10	/* synchronous operation required */
-- 
cgit 


From 5f8aca8b43f41c4b2d4dc5389124a40cab92b644 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Sat, 12 Oct 2013 00:55:06 -0700
Subject: xfs: always hold the iolock when calling xfs_change_file_space

Currently fallocate always holds the iolock when calling into
xfs_change_file_space, while the ioctl path lets some of the lower level
functions take it, but leave it out in others.

This patch makes sure the ioctl path also always holds the iolock and
thus introduces consistent locking for the preallocation operations while
simplifying the code and allowing to kill the now unused XFS_ATTR_NOLOCK
flag.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_bmap_util.c | 71 +++++++++++++++++---------------------------------
 fs/xfs/xfs_file.c      |  2 +-
 fs/xfs/xfs_ioctl.c     |  2 ++
 fs/xfs/xfs_iops.h      |  1 -
 4 files changed, 27 insertions(+), 49 deletions(-)

diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index 291e30cedfd3..bdd552d83107 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -989,8 +989,7 @@ xfs_alloc_file_space(
 	xfs_inode_t		*ip,
 	xfs_off_t		offset,
 	xfs_off_t		len,
-	int			alloc_type,
-	int			attr_flags)
+	int			alloc_type)
 {
 	xfs_mount_t		*mp = ip->i_mount;
 	xfs_off_t		count;
@@ -1248,8 +1247,7 @@ STATIC int
 xfs_free_file_space(
 	xfs_inode_t		*ip,
 	xfs_off_t		offset,
-	xfs_off_t		len,
-	int			attr_flags)
+	xfs_off_t		len)
 {
 	int			committed;
 	int			done;
@@ -1267,7 +1265,6 @@ xfs_free_file_space(
 	int			rt;
 	xfs_fileoff_t		startoffset_fsb;
 	xfs_trans_t		*tp;
-	int			need_iolock = 1;
 
 	mp = ip->i_mount;
 
@@ -1284,20 +1281,15 @@ xfs_free_file_space(
 	startoffset_fsb	= XFS_B_TO_FSB(mp, offset);
 	endoffset_fsb = XFS_B_TO_FSBT(mp, offset + len);
 
-	if (attr_flags & XFS_ATTR_NOLOCK)
-		need_iolock = 0;
-	if (need_iolock) {
-		xfs_ilock(ip, XFS_IOLOCK_EXCL);
-		/* wait for the completion of any pending DIOs */
-		inode_dio_wait(VFS_I(ip));
-	}
+	/* wait for the completion of any pending DIOs */
+	inode_dio_wait(VFS_I(ip));
 
 	rounding = max_t(xfs_off_t, 1 << mp->m_sb.sb_blocklog, PAGE_CACHE_SIZE);
 	ioffset = offset & ~(rounding - 1);
 	error = -filemap_write_and_wait_range(VFS_I(ip)->i_mapping,
 					      ioffset, -1);
 	if (error)
-		goto out_unlock_iolock;
+		goto out;
 	truncate_pagecache_range(VFS_I(ip), ioffset, -1);
 
 	/*
@@ -1311,7 +1303,7 @@ xfs_free_file_space(
 		error = xfs_bmapi_read(ip, startoffset_fsb, 1,
 					&imap, &nimap, 0);
 		if (error)
-			goto out_unlock_iolock;
+			goto out;
 		ASSERT(nimap == 0 || nimap == 1);
 		if (nimap && imap.br_startblock != HOLESTARTBLOCK) {
 			xfs_daddr_t	block;
@@ -1326,7 +1318,7 @@ xfs_free_file_space(
 		error = xfs_bmapi_read(ip, endoffset_fsb - 1, 1,
 					&imap, &nimap, 0);
 		if (error)
-			goto out_unlock_iolock;
+			goto out;
 		ASSERT(nimap == 0 || nimap == 1);
 		if (nimap && imap.br_startblock != HOLESTARTBLOCK) {
 			ASSERT(imap.br_startblock != DELAYSTARTBLOCK);
@@ -1412,18 +1404,15 @@ xfs_free_file_space(
 		xfs_iunlock(ip, XFS_ILOCK_EXCL);
 	}
 
- out_unlock_iolock:
-	if (need_iolock)
-		xfs_iunlock(ip, XFS_IOLOCK_EXCL);
+ out:
 	return error;
 
  error0:
 	xfs_bmap_cancel(&free_list);
  error1:
 	xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES | XFS_TRANS_ABORT);
-	xfs_iunlock(ip, need_iolock ? (XFS_ILOCK_EXCL | XFS_IOLOCK_EXCL) :
-		    XFS_ILOCK_EXCL);
-	return error;
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	goto out;
 }
 
 
@@ -1431,8 +1420,7 @@ STATIC int
 xfs_zero_file_space(
 	struct xfs_inode	*ip,
 	xfs_off_t		offset,
-	xfs_off_t		len,
-	int			attr_flags)
+	xfs_off_t		len)
 {
 	struct xfs_mount	*mp = ip->i_mount;
 	uint			granularity;
@@ -1453,9 +1441,6 @@ xfs_zero_file_space(
 	ASSERT(start_boundary >= offset);
 	ASSERT(end_boundary <= offset + len);
 
-	if (!(attr_flags & XFS_ATTR_NOLOCK))
-		xfs_ilock(ip, XFS_IOLOCK_EXCL);
-
 	if (start_boundary < end_boundary - 1) {
 		/* punch out the page cache over the conversion range */
 		truncate_pagecache_range(VFS_I(ip), start_boundary,
@@ -1463,16 +1448,16 @@ xfs_zero_file_space(
 		/* convert the blocks */
 		error = xfs_alloc_file_space(ip, start_boundary,
 					end_boundary - start_boundary - 1,
-					XFS_BMAPI_PREALLOC | XFS_BMAPI_CONVERT,
-					attr_flags);
+					XFS_BMAPI_PREALLOC | XFS_BMAPI_CONVERT);
 		if (error)
-			goto out_unlock;
+			goto out;
 
 		/* We've handled the interior of the range, now for the edges */
-		if (start_boundary != offset)
+		if (start_boundary != offset) {
 			error = xfs_iozero(ip, offset, start_boundary - offset);
-		if (error)
-			goto out_unlock;
+			if (error)
+				goto out;
+		}
 
 		if (end_boundary != offset + len)
 			error = xfs_iozero(ip, end_boundary,
@@ -1486,9 +1471,7 @@ xfs_zero_file_space(
 		error = xfs_iozero(ip, offset, len);
 	}
 
-out_unlock:
-	if (!(attr_flags & XFS_ATTR_NOLOCK))
-		xfs_iunlock(ip, XFS_IOLOCK_EXCL);
+out:
 	return error;
 
 }
@@ -1571,8 +1554,7 @@ xfs_change_file_space(
 	setprealloc = clrprealloc = 0;
 	switch (cmd) {
 	case XFS_IOC_ZERO_RANGE:
-		error = xfs_zero_file_space(ip, startoffset, bf->l_len,
-						attr_flags);
+		error = xfs_zero_file_space(ip, startoffset, bf->l_len);
 		if (error)
 			return error;
 		setprealloc = 1;
@@ -1581,7 +1563,7 @@ xfs_change_file_space(
 	case XFS_IOC_RESVSP:
 	case XFS_IOC_RESVSP64:
 		error = xfs_alloc_file_space(ip, startoffset, bf->l_len,
-						XFS_BMAPI_PREALLOC, attr_flags);
+						XFS_BMAPI_PREALLOC);
 		if (error)
 			return error;
 		setprealloc = 1;
@@ -1589,8 +1571,8 @@ xfs_change_file_space(
 
 	case XFS_IOC_UNRESVSP:
 	case XFS_IOC_UNRESVSP64:
-		if ((error = xfs_free_file_space(ip, startoffset, bf->l_len,
-								attr_flags)))
+		error = xfs_free_file_space(ip, startoffset, bf->l_len);
+		if (error)
 			return error;
 		break;
 
@@ -1608,22 +1590,17 @@ xfs_change_file_space(
 		 * truncate, direct IO) from racing against the transient
 		 * allocated but not written state we can have here.
 		 */
-		xfs_ilock(ip, XFS_IOLOCK_EXCL);
 		if (startoffset > fsize) {
 			error = xfs_alloc_file_space(ip, fsize,
-					startoffset - fsize, 0,
-					attr_flags | XFS_ATTR_NOLOCK);
-			if (error) {
-				xfs_iunlock(ip, XFS_IOLOCK_EXCL);
+					startoffset - fsize, 0);
+			if (error)
 				break;
-			}
 		}
 
 		iattr.ia_valid = ATTR_SIZE;
 		iattr.ia_size = startoffset;
 
 		error = xfs_setattr_size(ip, &iattr);
-		xfs_iunlock(ip, XFS_IOLOCK_EXCL);
 
 		if (error)
 			return error;
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index c9179820c01b..116300f3b1d4 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -816,7 +816,7 @@ xfs_file_fallocate(
 	xfs_flock64_t	bf;
 	xfs_inode_t	*ip = XFS_I(inode);
 	int		cmd = XFS_IOC_RESVSP;
-	int		attr_flags = XFS_ATTR_NOLOCK;
+	int		attr_flags = 0;
 
 	if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
 		return -EOPNOTSUPP;
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 5a57e0c80b6b..45287419dc37 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -670,7 +670,9 @@ xfs_ioc_space(
 	error = mnt_want_write_file(filp);
 	if (error)
 		return error;
+	xfs_ilock(ip, XFS_IOLOCK_EXCL);
 	error = xfs_change_file_space(ip, cmd, bf, filp->f_pos, attr_flags);
+	xfs_iunlock(ip, XFS_IOLOCK_EXCL);
 	mnt_drop_write_file(filp);
 	return -error;
 }
diff --git a/fs/xfs/xfs_iops.h b/fs/xfs/xfs_iops.h
index fe4013af2586..f3738253c69a 100644
--- a/fs/xfs/xfs_iops.h
+++ b/fs/xfs/xfs_iops.h
@@ -31,7 +31,6 @@ extern void xfs_setup_inode(struct xfs_inode *);
  * Internal setattr interfaces.
  */
 #define	XFS_ATTR_DMI		0x01	/* invocation from a DMI function */
-#define XFS_ATTR_NOLOCK		0x04	/* Don't grab any conflicting locks */
 #define XFS_ATTR_NOACL		0x08	/* Don't call xfs_acl_chmod */
 #define XFS_ATTR_SYNC		0x10	/* synchronous operation required */
 
-- 
cgit 


From 83aee9e4c2976143f35b3a42ad1faadf58c53ae7 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Sat, 12 Oct 2013 00:55:07 -0700
Subject: xfs: simplify the fallocate path

Call xfs_alloc_file_space or xfs_free_file_space directly from
xfs_file_fallocate instead of going through xfs_change_file_space.

This simplified the code by removing the unessecary marshalling of the
arguments into an xfs_flock64_t structure and allows removing checks that
are already done in the VFS code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_bmap_util.c | 39 +++-----------------------
 fs/xfs/xfs_bmap_util.h |  4 +++
 fs/xfs/xfs_file.c      | 76 +++++++++++++++++++++++++++++++-------------------
 3 files changed, 56 insertions(+), 63 deletions(-)

diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index bdd552d83107..7e1c2ae81c35 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -965,28 +965,9 @@ xfs_free_eofblocks(
 	return error;
 }
 
-/*
- * xfs_alloc_file_space()
- *      This routine allocates disk space for the given file.
- *
- *	If alloc_type == 0, this request is for an ALLOCSP type
- *	request which will change the file size.  In this case, no
- *	DMAPI event will be generated by the call.  A TRUNCATE event
- *	will be generated later by xfs_setattr.
- *
- *	If alloc_type != 0, this request is for a RESVSP type
- *	request, and a DMAPI DM_EVENT_WRITE will be generated if the
- *	lower block boundary byte address is less than the file's
- *	length.
- *
- * RETURNS:
- *       0 on success
- *      errno on error
- *
- */
-STATIC int
+int
 xfs_alloc_file_space(
-	xfs_inode_t		*ip,
+	struct xfs_inode	*ip,
 	xfs_off_t		offset,
 	xfs_off_t		len,
 	int			alloc_type)
@@ -1231,21 +1212,9 @@ xfs_zero_remaining_bytes(
 	return error;
 }
 
-/*
- * xfs_free_file_space()
- *      This routine frees disk space for the given file.
- *
- *	This routine is only called by xfs_change_file_space
- *	for an UNRESVSP type call.
- *
- * RETURNS:
- *       0 on success
- *      errno on error
- *
- */
-STATIC int
+int
 xfs_free_file_space(
-	xfs_inode_t		*ip,
+	struct xfs_inode	*ip,
 	xfs_off_t		offset,
 	xfs_off_t		len)
 {
diff --git a/fs/xfs/xfs_bmap_util.h b/fs/xfs/xfs_bmap_util.h
index 061260946f7a..77cf5001719b 100644
--- a/fs/xfs/xfs_bmap_util.h
+++ b/fs/xfs/xfs_bmap_util.h
@@ -96,6 +96,10 @@ int	xfs_bmap_last_extent(struct xfs_trans *tp, struct xfs_inode *ip,
 int	xfs_change_file_space(struct xfs_inode *ip, int cmd,
 			      xfs_flock64_t *bf, xfs_off_t offset,
 			      int attr_flags);
+int	xfs_alloc_file_space(struct xfs_inode *ip, xfs_off_t offset,
+			     xfs_off_t len, int alloc_type);
+int	xfs_free_file_space(struct xfs_inode *ip, xfs_off_t offset,
+			    xfs_off_t len);
 
 /* EOF block manipulation functions */
 bool	xfs_can_free_eofblocks(struct xfs_inode *ip, bool force);
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 116300f3b1d4..c8a75a75e25a 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -805,44 +805,64 @@ out:
 
 STATIC long
 xfs_file_fallocate(
-	struct file	*file,
-	int		mode,
-	loff_t		offset,
-	loff_t		len)
+	struct file		*file,
+	int			mode,
+	loff_t			offset,
+	loff_t			len)
 {
-	struct inode	*inode = file_inode(file);
-	long		error;
-	loff_t		new_size = 0;
-	xfs_flock64_t	bf;
-	xfs_inode_t	*ip = XFS_I(inode);
-	int		cmd = XFS_IOC_RESVSP;
-	int		attr_flags = 0;
+	struct inode		*inode = file_inode(file);
+	struct xfs_inode	*ip = XFS_I(inode);
+	struct xfs_trans	*tp;
+	long			error;
+	loff_t			new_size = 0;
 
+	if (!S_ISREG(inode->i_mode))
+		return -EINVAL;
 	if (mode & ~(FALLOC_FL_KEEP_SIZE | FALLOC_FL_PUNCH_HOLE))
 		return -EOPNOTSUPP;
 
-	bf.l_whence = 0;
-	bf.l_start = offset;
-	bf.l_len = len;
-
 	xfs_ilock(ip, XFS_IOLOCK_EXCL);
+	if (mode & FALLOC_FL_PUNCH_HOLE) {
+		error = xfs_free_file_space(ip, offset, len);
+		if (error)
+			goto out_unlock;
+	} else {
+		if (!(mode & FALLOC_FL_KEEP_SIZE) &&
+		    offset + len > i_size_read(inode)) {
+			new_size = offset + len;
+			error = -inode_newsize_ok(inode, new_size);
+			if (error)
+				goto out_unlock;
+		}
 
-	if (mode & FALLOC_FL_PUNCH_HOLE)
-		cmd = XFS_IOC_UNRESVSP;
-
-	/* check the new inode size is valid before allocating */
-	if (!(mode & FALLOC_FL_KEEP_SIZE) &&
-	    offset + len > i_size_read(inode)) {
-		new_size = offset + len;
-		error = inode_newsize_ok(inode, new_size);
+		error = xfs_alloc_file_space(ip, offset, len,
+					     XFS_BMAPI_PREALLOC);
 		if (error)
 			goto out_unlock;
 	}
 
-	if (file->f_flags & O_DSYNC)
-		attr_flags |= XFS_ATTR_SYNC;
+	tp = xfs_trans_alloc(ip->i_mount, XFS_TRANS_WRITEID);
+	error = xfs_trans_reserve(tp, &M_RES(ip->i_mount)->tr_writeid, 0, 0);
+	if (error) {
+		xfs_trans_cancel(tp, 0);
+		goto out_unlock;
+	}
+
+	xfs_ilock(ip, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+	ip->i_d.di_mode &= ~S_ISUID;
+	if (ip->i_d.di_mode & S_IXGRP)
+		ip->i_d.di_mode &= ~S_ISGID;
+
+	if (!(mode & FALLOC_FL_PUNCH_HOLE))
+		ip->i_d.di_flags |= XFS_DIFLAG_PREALLOC;
+
+	xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
 
-	error = -xfs_change_file_space(ip, cmd, &bf, 0, attr_flags);
+	if (file->f_flags & O_DSYNC)
+		xfs_trans_set_sync(tp);
+	error = xfs_trans_commit(tp, 0);
 	if (error)
 		goto out_unlock;
 
@@ -852,12 +872,12 @@ xfs_file_fallocate(
 
 		iattr.ia_valid = ATTR_SIZE;
 		iattr.ia_size = new_size;
-		error = -xfs_setattr_size(ip, &iattr);
+		error = xfs_setattr_size(ip, &iattr);
 	}
 
 out_unlock:
 	xfs_iunlock(ip, XFS_IOLOCK_EXCL);
-	return error;
+	return -error;
 }
 
 
-- 
cgit 


From 865e9446b4c17f78be0b1387426394b6bfc278f3 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Sat, 12 Oct 2013 00:55:08 -0700
Subject: xfs: fold xfs_change_file_space into xfs_ioc_space

Now that only one caller of xfs_change_file_space is left it can be merged
into said caller.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_bmap_util.c | 178 +------------------------------------------------
 fs/xfs/xfs_bmap_util.h |   5 +-
 fs/xfs/xfs_ioctl.c     | 130 +++++++++++++++++++++++++++++++++---
 fs/xfs/xfs_iops.h      |   4 +-
 4 files changed, 126 insertions(+), 191 deletions(-)

diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index 7e1c2ae81c35..45cf5a2fd1bf 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -1385,7 +1385,7 @@ xfs_free_file_space(
 }
 
 
-STATIC int
+int
 xfs_zero_file_space(
 	struct xfs_inode	*ip,
 	xfs_off_t		offset,
@@ -1445,182 +1445,6 @@ out:
 
 }
 
-/*
- * xfs_change_file_space()
- *      This routine allocates or frees disk space for the given file.
- *      The user specified parameters are checked for alignment and size
- *      limitations.
- *
- * RETURNS:
- *       0 on success
- *      errno on error
- *
- */
-int
-xfs_change_file_space(
-	xfs_inode_t	*ip,
-	int		cmd,
-	xfs_flock64_t	*bf,
-	xfs_off_t	offset,
-	int		attr_flags)
-{
-	xfs_mount_t	*mp = ip->i_mount;
-	int		clrprealloc;
-	int		error;
-	xfs_fsize_t	fsize;
-	int		setprealloc;
-	xfs_off_t	startoffset;
-	xfs_trans_t	*tp;
-	struct iattr	iattr;
-
-	if (!S_ISREG(ip->i_d.di_mode))
-		return XFS_ERROR(EINVAL);
-
-	switch (bf->l_whence) {
-	case 0: /*SEEK_SET*/
-		break;
-	case 1: /*SEEK_CUR*/
-		bf->l_start += offset;
-		break;
-	case 2: /*SEEK_END*/
-		bf->l_start += XFS_ISIZE(ip);
-		break;
-	default:
-		return XFS_ERROR(EINVAL);
-	}
-
-	/*
-	 * length of <= 0 for resv/unresv/zero is invalid.  length for
-	 * alloc/free is ignored completely and we have no idea what userspace
-	 * might have set it to, so set it to zero to allow range
-	 * checks to pass.
-	 */
-	switch (cmd) {
-	case XFS_IOC_ZERO_RANGE:
-	case XFS_IOC_RESVSP:
-	case XFS_IOC_RESVSP64:
-	case XFS_IOC_UNRESVSP:
-	case XFS_IOC_UNRESVSP64:
-		if (bf->l_len <= 0)
-			return XFS_ERROR(EINVAL);
-		break;
-	default:
-		bf->l_len = 0;
-		break;
-	}
-
-	if (bf->l_start < 0 ||
-	    bf->l_start > mp->m_super->s_maxbytes ||
-	    bf->l_start + bf->l_len < 0 ||
-	    bf->l_start + bf->l_len >= mp->m_super->s_maxbytes)
-		return XFS_ERROR(EINVAL);
-
-	bf->l_whence = 0;
-
-	startoffset = bf->l_start;
-	fsize = XFS_ISIZE(ip);
-
-	setprealloc = clrprealloc = 0;
-	switch (cmd) {
-	case XFS_IOC_ZERO_RANGE:
-		error = xfs_zero_file_space(ip, startoffset, bf->l_len);
-		if (error)
-			return error;
-		setprealloc = 1;
-		break;
-
-	case XFS_IOC_RESVSP:
-	case XFS_IOC_RESVSP64:
-		error = xfs_alloc_file_space(ip, startoffset, bf->l_len,
-						XFS_BMAPI_PREALLOC);
-		if (error)
-			return error;
-		setprealloc = 1;
-		break;
-
-	case XFS_IOC_UNRESVSP:
-	case XFS_IOC_UNRESVSP64:
-		error = xfs_free_file_space(ip, startoffset, bf->l_len);
-		if (error)
-			return error;
-		break;
-
-	case XFS_IOC_ALLOCSP:
-	case XFS_IOC_ALLOCSP64:
-	case XFS_IOC_FREESP:
-	case XFS_IOC_FREESP64:
-		/*
-		 * These operations actually do IO when extending the file, but
-		 * the allocation is done seperately to the zeroing that is
-		 * done. This set of operations need to be serialised against
-		 * other IO operations, such as truncate and buffered IO. We
-		 * need to take the IOLOCK here to serialise the allocation and
-		 * zeroing IO to prevent other IOLOCK holders (e.g. getbmap,
-		 * truncate, direct IO) from racing against the transient
-		 * allocated but not written state we can have here.
-		 */
-		if (startoffset > fsize) {
-			error = xfs_alloc_file_space(ip, fsize,
-					startoffset - fsize, 0);
-			if (error)
-				break;
-		}
-
-		iattr.ia_valid = ATTR_SIZE;
-		iattr.ia_size = startoffset;
-
-		error = xfs_setattr_size(ip, &iattr);
-
-		if (error)
-			return error;
-
-		clrprealloc = 1;
-		break;
-
-	default:
-		ASSERT(0);
-		return XFS_ERROR(EINVAL);
-	}
-
-	/*
-	 * update the inode timestamp, mode, and prealloc flag bits
-	 */
-	tp = xfs_trans_alloc(mp, XFS_TRANS_WRITEID);
-	error = xfs_trans_reserve(tp, &M_RES(mp)->tr_writeid, 0, 0);
-	if (error) {
-		xfs_trans_cancel(tp, 0);
-		return error;
-	}
-
-	xfs_ilock(ip, XFS_ILOCK_EXCL);
-	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
-
-	if ((attr_flags & XFS_ATTR_DMI) == 0) {
-		ip->i_d.di_mode &= ~S_ISUID;
-
-		/*
-		 * Note that we don't have to worry about mandatory
-		 * file locking being disabled here because we only
-		 * clear the S_ISGID bit if the Group execute bit is
-		 * on, but if it was on then mandatory locking wouldn't
-		 * have been enabled.
-		 */
-		if (ip->i_d.di_mode & S_IXGRP)
-			ip->i_d.di_mode &= ~S_ISGID;
-
-		xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
-	}
-	if (setprealloc)
-		ip->i_d.di_flags |= XFS_DIFLAG_PREALLOC;
-	else if (clrprealloc)
-		ip->i_d.di_flags &= ~XFS_DIFLAG_PREALLOC;
-
-	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
-	if (attr_flags & XFS_ATTR_SYNC)
-		xfs_trans_set_sync(tp);
-	return xfs_trans_commit(tp, 0);
-}
-
 /*
  * We need to check that the format of the data fork in the temporary inode is
  * valid for the target inode before doing the swap. This is not a problem with
diff --git a/fs/xfs/xfs_bmap_util.h b/fs/xfs/xfs_bmap_util.h
index 77cf5001719b..900747b25772 100644
--- a/fs/xfs/xfs_bmap_util.h
+++ b/fs/xfs/xfs_bmap_util.h
@@ -93,13 +93,12 @@ int	xfs_bmap_last_extent(struct xfs_trans *tp, struct xfs_inode *ip,
 			     int *is_empty);
 
 /* preallocation and hole punch interface */
-int	xfs_change_file_space(struct xfs_inode *ip, int cmd,
-			      xfs_flock64_t *bf, xfs_off_t offset,
-			      int attr_flags);
 int	xfs_alloc_file_space(struct xfs_inode *ip, xfs_off_t offset,
 			     xfs_off_t len, int alloc_type);
 int	xfs_free_file_space(struct xfs_inode *ip, xfs_off_t offset,
 			    xfs_off_t len);
+int	xfs_zero_file_space(struct xfs_inode *ip, xfs_off_t offset,
+			    xfs_off_t len);
 
 /* EOF block manipulation functions */
 bool	xfs_can_free_eofblocks(struct xfs_inode *ip, bool force);
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 45287419dc37..e448d735346b 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -641,7 +641,11 @@ xfs_ioc_space(
 	unsigned int		cmd,
 	xfs_flock64_t		*bf)
 {
-	int			attr_flags = 0;
+	struct xfs_mount	*mp = ip->i_mount;
+	struct xfs_trans	*tp;
+	struct iattr		iattr;
+	bool			setprealloc = false;
+	bool			clrprealloc = false;
 	int			error;
 
 	/*
@@ -661,17 +665,127 @@ xfs_ioc_space(
 	if (!S_ISREG(inode->i_mode))
 		return -XFS_ERROR(EINVAL);
 
-	if (filp->f_flags & O_DSYNC)
-		attr_flags |= XFS_ATTR_SYNC;
-
-	if (ioflags & IO_INVIS)
-		attr_flags |= XFS_ATTR_DMI;
-
 	error = mnt_want_write_file(filp);
 	if (error)
 		return error;
+
 	xfs_ilock(ip, XFS_IOLOCK_EXCL);
-	error = xfs_change_file_space(ip, cmd, bf, filp->f_pos, attr_flags);
+
+	switch (bf->l_whence) {
+	case 0: /*SEEK_SET*/
+		break;
+	case 1: /*SEEK_CUR*/
+		bf->l_start += filp->f_pos;
+		break;
+	case 2: /*SEEK_END*/
+		bf->l_start += XFS_ISIZE(ip);
+		break;
+	default:
+		error = XFS_ERROR(EINVAL);
+		goto out_unlock;
+	}
+
+	/*
+	 * length of <= 0 for resv/unresv/zero is invalid.  length for
+	 * alloc/free is ignored completely and we have no idea what userspace
+	 * might have set it to, so set it to zero to allow range
+	 * checks to pass.
+	 */
+	switch (cmd) {
+	case XFS_IOC_ZERO_RANGE:
+	case XFS_IOC_RESVSP:
+	case XFS_IOC_RESVSP64:
+	case XFS_IOC_UNRESVSP:
+	case XFS_IOC_UNRESVSP64:
+		if (bf->l_len <= 0) {
+			error = XFS_ERROR(EINVAL);
+			goto out_unlock;
+		}
+		break;
+	default:
+		bf->l_len = 0;
+		break;
+	}
+
+	if (bf->l_start < 0 ||
+	    bf->l_start > mp->m_super->s_maxbytes ||
+	    bf->l_start + bf->l_len < 0 ||
+	    bf->l_start + bf->l_len >= mp->m_super->s_maxbytes) {
+		error = XFS_ERROR(EINVAL);
+		goto out_unlock;
+	}
+
+	switch (cmd) {
+	case XFS_IOC_ZERO_RANGE:
+		error = xfs_zero_file_space(ip, bf->l_start, bf->l_len);
+		if (!error)
+			setprealloc = true;
+		break;
+	case XFS_IOC_RESVSP:
+	case XFS_IOC_RESVSP64:
+		error = xfs_alloc_file_space(ip, bf->l_start, bf->l_len,
+						XFS_BMAPI_PREALLOC);
+		if (!error)
+			setprealloc = true;
+		break;
+	case XFS_IOC_UNRESVSP:
+	case XFS_IOC_UNRESVSP64:
+		error = xfs_free_file_space(ip, bf->l_start, bf->l_len);
+		break;
+	case XFS_IOC_ALLOCSP:
+	case XFS_IOC_ALLOCSP64:
+	case XFS_IOC_FREESP:
+	case XFS_IOC_FREESP64:
+		if (bf->l_start > XFS_ISIZE(ip)) {
+			error = xfs_alloc_file_space(ip, XFS_ISIZE(ip),
+					bf->l_start - XFS_ISIZE(ip), 0);
+			if (error)
+				goto out_unlock;
+		}
+
+		iattr.ia_valid = ATTR_SIZE;
+		iattr.ia_size = bf->l_start;
+
+		error = xfs_setattr_size(ip, &iattr);
+		if (!error)
+			clrprealloc = true;
+		break;
+	default:
+		ASSERT(0);
+		error = XFS_ERROR(EINVAL);
+	}
+
+	if (error)
+		goto out_unlock;
+
+	tp = xfs_trans_alloc(mp, XFS_TRANS_WRITEID);
+	error = xfs_trans_reserve(tp, &M_RES(mp)->tr_writeid, 0, 0);
+	if (error) {
+		xfs_trans_cancel(tp, 0);
+		goto out_unlock;
+	}
+
+	xfs_ilock(ip, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+
+	if (!(ioflags & IO_INVIS)) {
+		ip->i_d.di_mode &= ~S_ISUID;
+		if (ip->i_d.di_mode & S_IXGRP)
+			ip->i_d.di_mode &= ~S_ISGID;
+		xfs_trans_ichgtime(tp, ip, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
+	}
+
+	if (setprealloc)
+		ip->i_d.di_flags |= XFS_DIFLAG_PREALLOC;
+	else if (clrprealloc)
+		ip->i_d.di_flags &= ~XFS_DIFLAG_PREALLOC;
+
+	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
+	if (filp->f_flags & O_DSYNC)
+		xfs_trans_set_sync(tp);
+	error = xfs_trans_commit(tp, 0);
+
+out_unlock:
 	xfs_iunlock(ip, XFS_IOLOCK_EXCL);
 	mnt_drop_write_file(filp);
 	return -error;
diff --git a/fs/xfs/xfs_iops.h b/fs/xfs/xfs_iops.h
index f3738253c69a..d2c5057b5cc4 100644
--- a/fs/xfs/xfs_iops.h
+++ b/fs/xfs/xfs_iops.h
@@ -30,9 +30,7 @@ extern void xfs_setup_inode(struct xfs_inode *);
 /*
  * Internal setattr interfaces.
  */
-#define	XFS_ATTR_DMI		0x01	/* invocation from a DMI function */
-#define XFS_ATTR_NOACL		0x08	/* Don't call xfs_acl_chmod */
-#define XFS_ATTR_SYNC		0x10	/* synchronous operation required */
+#define XFS_ATTR_NOACL		0x01	/* Don't call xfs_acl_chmod */
 
 extern int xfs_setattr_nonsize(struct xfs_inode *ip, struct iattr *vap,
 			       int flags);
-- 
cgit 


From 833ba4b1ba653f279c78e8e3352527acce8946e6 Mon Sep 17 00:00:00 2001
From: "Chen, Gong" <gong.chen@linux.intel.com>
Date: Fri, 18 Oct 2013 14:27:51 -0700
Subject: ACPI, APEI, CPER: Fix status check during error printing

Commit aaf9d93be71c:
	ACPI / APEI: fix error status check condition for CPER
only catches condition check before print, but a similar check is
needed during printing CPER error sections.

Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Reviewed-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
 drivers/acpi/apei/cper.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c
index 33dc6a004802..f827f02bfbe8 100644
--- a/drivers/acpi/apei/cper.c
+++ b/drivers/acpi/apei/cper.c
@@ -353,7 +353,7 @@ void apei_estatus_print(const char *pfx,
 	       cper_severity_str(severity));
 	data_len = estatus->data_length;
 	gdata = (struct acpi_hest_generic_data *)(estatus + 1);
-	while (data_len > sizeof(*gdata)) {
+	while (data_len >= sizeof(*gdata)) {
 		gedata_len = gdata->error_data_length;
 		apei_estatus_print_section(pfx, gdata, sec_no);
 		data_len -= gedata_len + sizeof(*gdata);
-- 
cgit 


From 88f074f4871a8c212b212b725e4dcdcdb09613c1 Mon Sep 17 00:00:00 2001
From: "Chen, Gong" <gong.chen@linux.intel.com>
Date: Fri, 18 Oct 2013 14:28:59 -0700
Subject: ACPI, CPER: Update cper info

We have a lot of confusing names of functions and data structures in
amongs the the error reporting code.  In particular the "apei" prefix
has been applied to many objects that are not part of APEI.  Since we
will be using these routines for extended error log reporting it will
be clearer if we fix up the names first.

Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Acked-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
 drivers/acpi/apei/apei-internal.h | 12 ++++----
 drivers/acpi/apei/cper.c          | 58 +++++++++++++++++++--------------------
 drivers/acpi/apei/ghes.c          | 54 ++++++++++++++++++------------------
 include/acpi/actbl1.h             | 14 +++++-----
 include/acpi/ghes.h               |  2 +-
 include/linux/cper.h              |  2 +-
 6 files changed, 71 insertions(+), 71 deletions(-)

diff --git a/drivers/acpi/apei/apei-internal.h b/drivers/acpi/apei/apei-internal.h
index f220d642136e..21ba34a73883 100644
--- a/drivers/acpi/apei/apei-internal.h
+++ b/drivers/acpi/apei/apei-internal.h
@@ -122,11 +122,11 @@ struct dentry;
 struct dentry *apei_get_debugfs_dir(void);
 
 #define apei_estatus_for_each_section(estatus, section)			\
-	for (section = (struct acpi_hest_generic_data *)(estatus + 1);	\
+	for (section = (struct acpi_generic_data *)(estatus + 1);	\
 	     (void *)section - (void *)estatus < estatus->data_length;	\
 	     section = (void *)(section+1) + section->error_data_length)
 
-static inline u32 apei_estatus_len(struct acpi_hest_generic_status *estatus)
+static inline u32 cper_estatus_len(struct acpi_generic_status *estatus)
 {
 	if (estatus->raw_data_length)
 		return estatus->raw_data_offset + \
@@ -135,10 +135,10 @@ static inline u32 apei_estatus_len(struct acpi_hest_generic_status *estatus)
 		return sizeof(*estatus) + estatus->data_length;
 }
 
-void apei_estatus_print(const char *pfx,
-			const struct acpi_hest_generic_status *estatus);
-int apei_estatus_check_header(const struct acpi_hest_generic_status *estatus);
-int apei_estatus_check(const struct acpi_hest_generic_status *estatus);
+void cper_estatus_print(const char *pfx,
+			const struct acpi_generic_status *estatus);
+int cper_estatus_check_header(const struct acpi_generic_status *estatus);
+int cper_estatus_check(const struct acpi_generic_status *estatus);
 
 int apei_osc_setup(void);
 #endif
diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c
index f827f02bfbe8..eb5f6d6d7dbc 100644
--- a/drivers/acpi/apei/cper.c
+++ b/drivers/acpi/apei/cper.c
@@ -5,7 +5,7 @@
  *	Author: Huang Ying <ying.huang@intel.com>
  *
  * CPER is the format used to describe platform hardware error by
- * various APEI tables, such as ERST, BERT and HEST etc.
+ * various tables, such as ERST, BERT and HEST etc.
  *
  * For more information about CPER, please refer to Appendix N of UEFI
  * Specification version 2.3.
@@ -73,7 +73,7 @@ static const char *cper_severity_str(unsigned int severity)
  * printed, with @pfx is printed at the beginning of each line.
  */
 void cper_print_bits(const char *pfx, unsigned int bits,
-		     const char *strs[], unsigned int strs_size)
+		     const char * const strs[], unsigned int strs_size)
 {
 	int i, len = 0;
 	const char *str;
@@ -98,32 +98,32 @@ void cper_print_bits(const char *pfx, unsigned int bits,
 		printk("%s\n", buf);
 }
 
-static const char *cper_proc_type_strs[] = {
+static const char * const cper_proc_type_strs[] = {
 	"IA32/X64",
 	"IA64",
 };
 
-static const char *cper_proc_isa_strs[] = {
+static const char * const cper_proc_isa_strs[] = {
 	"IA32",
 	"IA64",
 	"X64",
 };
 
-static const char *cper_proc_error_type_strs[] = {
+static const char * const cper_proc_error_type_strs[] = {
 	"cache error",
 	"TLB error",
 	"bus error",
 	"micro-architectural error",
 };
 
-static const char *cper_proc_op_strs[] = {
+static const char * const cper_proc_op_strs[] = {
 	"unknown or generic",
 	"data read",
 	"data write",
 	"instruction execution",
 };
 
-static const char *cper_proc_flag_strs[] = {
+static const char * const cper_proc_flag_strs[] = {
 	"restartable",
 	"precise IP",
 	"overflow",
@@ -248,7 +248,7 @@ static const char *cper_pcie_port_type_strs[] = {
 };
 
 static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie,
-			    const struct acpi_hest_generic_data *gdata)
+			    const struct acpi_generic_data *gdata)
 {
 	if (pcie->validation_bits & CPER_PCIE_VALID_PORT_TYPE)
 		printk("%s""port_type: %d, %s\n", pfx, pcie->port_type,
@@ -283,17 +283,17 @@ static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie,
 	pfx, pcie->bridge.secondary_status, pcie->bridge.control);
 }
 
-static const char *apei_estatus_section_flag_strs[] = {
+static const char * const cper_estatus_section_flag_strs[] = {
 	"primary",
 	"containment warning",
 	"reset",
-	"threshold exceeded",
+	"error threshold exceeded",
 	"resource not accessible",
 	"latent error",
 };
 
-static void apei_estatus_print_section(
-	const char *pfx, const struct acpi_hest_generic_data *gdata, int sec_no)
+static void cper_estatus_print_section(
+	const char *pfx, const struct acpi_generic_data *gdata, int sec_no)
 {
 	uuid_le *sec_type = (uuid_le *)gdata->section_type;
 	__u16 severity;
@@ -302,8 +302,8 @@ static void apei_estatus_print_section(
 	printk("%s""section: %d, severity: %d, %s\n", pfx, sec_no, severity,
 	       cper_severity_str(severity));
 	printk("%s""flags: 0x%02x\n", pfx, gdata->flags);
-	cper_print_bits(pfx, gdata->flags, apei_estatus_section_flag_strs,
-			ARRAY_SIZE(apei_estatus_section_flag_strs));
+	cper_print_bits(pfx, gdata->flags, cper_estatus_section_flag_strs,
+			ARRAY_SIZE(cper_estatus_section_flag_strs));
 	if (gdata->validation_bits & CPER_SEC_VALID_FRU_ID)
 		printk("%s""fru_id: %pUl\n", pfx, (uuid_le *)gdata->fru_id);
 	if (gdata->validation_bits & CPER_SEC_VALID_FRU_TEXT)
@@ -339,34 +339,34 @@ err_section_too_small:
 	pr_err(FW_WARN "error section length is too small\n");
 }
 
-void apei_estatus_print(const char *pfx,
-			const struct acpi_hest_generic_status *estatus)
+void cper_estatus_print(const char *pfx,
+			const struct acpi_generic_status *estatus)
 {
-	struct acpi_hest_generic_data *gdata;
+	struct acpi_generic_data *gdata;
 	unsigned int data_len, gedata_len;
 	int sec_no = 0;
 	__u16 severity;
 
-	printk("%s""APEI generic hardware error status\n", pfx);
+	printk("%s""Generic Hardware Error Status\n", pfx);
 	severity = estatus->error_severity;
 	printk("%s""severity: %d, %s\n", pfx, severity,
 	       cper_severity_str(severity));
 	data_len = estatus->data_length;
-	gdata = (struct acpi_hest_generic_data *)(estatus + 1);
+	gdata = (struct acpi_generic_data *)(estatus + 1);
 	while (data_len >= sizeof(*gdata)) {
 		gedata_len = gdata->error_data_length;
-		apei_estatus_print_section(pfx, gdata, sec_no);
+		cper_estatus_print_section(pfx, gdata, sec_no);
 		data_len -= gedata_len + sizeof(*gdata);
 		gdata = (void *)(gdata + 1) + gedata_len;
 		sec_no++;
 	}
 }
-EXPORT_SYMBOL_GPL(apei_estatus_print);
+EXPORT_SYMBOL_GPL(cper_estatus_print);
 
-int apei_estatus_check_header(const struct acpi_hest_generic_status *estatus)
+int cper_estatus_check_header(const struct acpi_generic_status *estatus)
 {
 	if (estatus->data_length &&
-	    estatus->data_length < sizeof(struct acpi_hest_generic_data))
+	    estatus->data_length < sizeof(struct acpi_generic_data))
 		return -EINVAL;
 	if (estatus->raw_data_length &&
 	    estatus->raw_data_offset < sizeof(*estatus) + estatus->data_length)
@@ -374,19 +374,19 @@ int apei_estatus_check_header(const struct acpi_hest_generic_status *estatus)
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(apei_estatus_check_header);
+EXPORT_SYMBOL_GPL(cper_estatus_check_header);
 
-int apei_estatus_check(const struct acpi_hest_generic_status *estatus)
+int cper_estatus_check(const struct acpi_generic_status *estatus)
 {
-	struct acpi_hest_generic_data *gdata;
+	struct acpi_generic_data *gdata;
 	unsigned int data_len, gedata_len;
 	int rc;
 
-	rc = apei_estatus_check_header(estatus);
+	rc = cper_estatus_check_header(estatus);
 	if (rc)
 		return rc;
 	data_len = estatus->data_length;
-	gdata = (struct acpi_hest_generic_data *)(estatus + 1);
+	gdata = (struct acpi_generic_data *)(estatus + 1);
 	while (data_len >= sizeof(*gdata)) {
 		gedata_len = gdata->error_data_length;
 		if (gedata_len > data_len - sizeof(*gdata))
@@ -399,4 +399,4 @@ int apei_estatus_check(const struct acpi_hest_generic_status *estatus)
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(apei_estatus_check);
+EXPORT_SYMBOL_GPL(cper_estatus_check);
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index 8ec37bbdd699..0db6e4ff6501 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -75,13 +75,13 @@
 #define GHES_ESTATUS_CACHE_LEN(estatus_len)			\
 	(sizeof(struct ghes_estatus_cache) + (estatus_len))
 #define GHES_ESTATUS_FROM_CACHE(estatus_cache)			\
-	((struct acpi_hest_generic_status *)			\
+	((struct acpi_generic_status *)				\
 	 ((struct ghes_estatus_cache *)(estatus_cache) + 1))
 
 #define GHES_ESTATUS_NODE_LEN(estatus_len)			\
 	(sizeof(struct ghes_estatus_node) + (estatus_len))
-#define GHES_ESTATUS_FROM_NODE(estatus_node)				\
-	((struct acpi_hest_generic_status *)				\
+#define GHES_ESTATUS_FROM_NODE(estatus_node)			\
+	((struct acpi_generic_status *)				\
 	 ((struct ghes_estatus_node *)(estatus_node) + 1))
 
 bool ghes_disable;
@@ -378,17 +378,17 @@ static int ghes_read_estatus(struct ghes *ghes, int silent)
 	ghes->flags |= GHES_TO_CLEAR;
 
 	rc = -EIO;
-	len = apei_estatus_len(ghes->estatus);
+	len = cper_estatus_len(ghes->estatus);
 	if (len < sizeof(*ghes->estatus))
 		goto err_read_block;
 	if (len > ghes->generic->error_block_length)
 		goto err_read_block;
-	if (apei_estatus_check_header(ghes->estatus))
+	if (cper_estatus_check_header(ghes->estatus))
 		goto err_read_block;
 	ghes_copy_tofrom_phys(ghes->estatus + 1,
 			      buf_paddr + sizeof(*ghes->estatus),
 			      len - sizeof(*ghes->estatus), 1);
-	if (apei_estatus_check(ghes->estatus))
+	if (cper_estatus_check(ghes->estatus))
 		goto err_read_block;
 	rc = 0;
 
@@ -409,7 +409,7 @@ static void ghes_clear_estatus(struct ghes *ghes)
 	ghes->flags &= ~GHES_TO_CLEAR;
 }
 
-static void ghes_handle_memory_failure(struct acpi_hest_generic_data *gdata, int sev)
+static void ghes_handle_memory_failure(struct acpi_generic_data *gdata, int sev)
 {
 #ifdef CONFIG_ACPI_APEI_MEMORY_FAILURE
 	unsigned long pfn;
@@ -438,10 +438,10 @@ static void ghes_handle_memory_failure(struct acpi_hest_generic_data *gdata, int
 }
 
 static void ghes_do_proc(struct ghes *ghes,
-			 const struct acpi_hest_generic_status *estatus)
+			 const struct acpi_generic_status *estatus)
 {
 	int sev, sec_sev;
-	struct acpi_hest_generic_data *gdata;
+	struct acpi_generic_data *gdata;
 
 	sev = ghes_severity(estatus->error_severity);
 	apei_estatus_for_each_section(estatus, gdata) {
@@ -496,7 +496,7 @@ static void ghes_do_proc(struct ghes *ghes,
 
 static void __ghes_print_estatus(const char *pfx,
 				 const struct acpi_hest_generic *generic,
-				 const struct acpi_hest_generic_status *estatus)
+				 const struct acpi_generic_status *estatus)
 {
 	static atomic_t seqno;
 	unsigned int curr_seqno;
@@ -513,12 +513,12 @@ static void __ghes_print_estatus(const char *pfx,
 	snprintf(pfx_seq, sizeof(pfx_seq), "%s{%u}" HW_ERR, pfx, curr_seqno);
 	printk("%s""Hardware error from APEI Generic Hardware Error Source: %d\n",
 	       pfx_seq, generic->header.source_id);
-	apei_estatus_print(pfx_seq, estatus);
+	cper_estatus_print(pfx_seq, estatus);
 }
 
 static int ghes_print_estatus(const char *pfx,
 			      const struct acpi_hest_generic *generic,
-			      const struct acpi_hest_generic_status *estatus)
+			      const struct acpi_generic_status *estatus)
 {
 	/* Not more than 2 messages every 5 seconds */
 	static DEFINE_RATELIMIT_STATE(ratelimit_corrected, 5*HZ, 2);
@@ -540,15 +540,15 @@ static int ghes_print_estatus(const char *pfx,
  * GHES error status reporting throttle, to report more kinds of
  * errors, instead of just most frequently occurred errors.
  */
-static int ghes_estatus_cached(struct acpi_hest_generic_status *estatus)
+static int ghes_estatus_cached(struct acpi_generic_status *estatus)
 {
 	u32 len;
 	int i, cached = 0;
 	unsigned long long now;
 	struct ghes_estatus_cache *cache;
-	struct acpi_hest_generic_status *cache_estatus;
+	struct acpi_generic_status *cache_estatus;
 
-	len = apei_estatus_len(estatus);
+	len = cper_estatus_len(estatus);
 	rcu_read_lock();
 	for (i = 0; i < GHES_ESTATUS_CACHES_SIZE; i++) {
 		cache = rcu_dereference(ghes_estatus_caches[i]);
@@ -571,19 +571,19 @@ static int ghes_estatus_cached(struct acpi_hest_generic_status *estatus)
 
 static struct ghes_estatus_cache *ghes_estatus_cache_alloc(
 	struct acpi_hest_generic *generic,
-	struct acpi_hest_generic_status *estatus)
+	struct acpi_generic_status *estatus)
 {
 	int alloced;
 	u32 len, cache_len;
 	struct ghes_estatus_cache *cache;
-	struct acpi_hest_generic_status *cache_estatus;
+	struct acpi_generic_status *cache_estatus;
 
 	alloced = atomic_add_return(1, &ghes_estatus_cache_alloced);
 	if (alloced > GHES_ESTATUS_CACHE_ALLOCED_MAX) {
 		atomic_dec(&ghes_estatus_cache_alloced);
 		return NULL;
 	}
-	len = apei_estatus_len(estatus);
+	len = cper_estatus_len(estatus);
 	cache_len = GHES_ESTATUS_CACHE_LEN(len);
 	cache = (void *)gen_pool_alloc(ghes_estatus_pool, cache_len);
 	if (!cache) {
@@ -603,7 +603,7 @@ static void ghes_estatus_cache_free(struct ghes_estatus_cache *cache)
 {
 	u32 len;
 
-	len = apei_estatus_len(GHES_ESTATUS_FROM_CACHE(cache));
+	len = cper_estatus_len(GHES_ESTATUS_FROM_CACHE(cache));
 	len = GHES_ESTATUS_CACHE_LEN(len);
 	gen_pool_free(ghes_estatus_pool, (unsigned long)cache, len);
 	atomic_dec(&ghes_estatus_cache_alloced);
@@ -619,7 +619,7 @@ static void ghes_estatus_cache_rcu_free(struct rcu_head *head)
 
 static void ghes_estatus_cache_add(
 	struct acpi_hest_generic *generic,
-	struct acpi_hest_generic_status *estatus)
+	struct acpi_generic_status *estatus)
 {
 	int i, slot = -1, count;
 	unsigned long long now, duration, period, max_period = 0;
@@ -751,7 +751,7 @@ static void ghes_proc_in_irq(struct irq_work *irq_work)
 	struct llist_node *llnode, *next;
 	struct ghes_estatus_node *estatus_node;
 	struct acpi_hest_generic *generic;
-	struct acpi_hest_generic_status *estatus;
+	struct acpi_generic_status *estatus;
 	u32 len, node_len;
 
 	llnode = llist_del_all(&ghes_estatus_llist);
@@ -765,7 +765,7 @@ static void ghes_proc_in_irq(struct irq_work *irq_work)
 		estatus_node = llist_entry(llnode, struct ghes_estatus_node,
 					   llnode);
 		estatus = GHES_ESTATUS_FROM_NODE(estatus_node);
-		len = apei_estatus_len(estatus);
+		len = cper_estatus_len(estatus);
 		node_len = GHES_ESTATUS_NODE_LEN(len);
 		ghes_do_proc(estatus_node->ghes, estatus);
 		if (!ghes_estatus_cached(estatus)) {
@@ -784,7 +784,7 @@ static void ghes_print_queued_estatus(void)
 	struct llist_node *llnode;
 	struct ghes_estatus_node *estatus_node;
 	struct acpi_hest_generic *generic;
-	struct acpi_hest_generic_status *estatus;
+	struct acpi_generic_status *estatus;
 	u32 len, node_len;
 
 	llnode = llist_del_all(&ghes_estatus_llist);
@@ -797,7 +797,7 @@ static void ghes_print_queued_estatus(void)
 		estatus_node = llist_entry(llnode, struct ghes_estatus_node,
 					   llnode);
 		estatus = GHES_ESTATUS_FROM_NODE(estatus_node);
-		len = apei_estatus_len(estatus);
+		len = cper_estatus_len(estatus);
 		node_len = GHES_ESTATUS_NODE_LEN(len);
 		generic = estatus_node->generic;
 		ghes_print_estatus(NULL, generic, estatus);
@@ -843,7 +843,7 @@ static int ghes_notify_nmi(unsigned int cmd, struct pt_regs *regs)
 #ifdef CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG
 		u32 len, node_len;
 		struct ghes_estatus_node *estatus_node;
-		struct acpi_hest_generic_status *estatus;
+		struct acpi_generic_status *estatus;
 #endif
 		if (!(ghes->flags & GHES_TO_CLEAR))
 			continue;
@@ -851,7 +851,7 @@ static int ghes_notify_nmi(unsigned int cmd, struct pt_regs *regs)
 		if (ghes_estatus_cached(ghes->estatus))
 			goto next;
 		/* Save estatus for further processing in IRQ context */
-		len = apei_estatus_len(ghes->estatus);
+		len = cper_estatus_len(ghes->estatus);
 		node_len = GHES_ESTATUS_NODE_LEN(len);
 		estatus_node = (void *)gen_pool_alloc(ghes_estatus_pool,
 						      node_len);
@@ -923,7 +923,7 @@ static int ghes_probe(struct platform_device *ghes_dev)
 
 	rc = -EIO;
 	if (generic->error_block_length <
-	    sizeof(struct acpi_hest_generic_status)) {
+	    sizeof(struct acpi_generic_status)) {
 		pr_warning(FW_BUG GHES_PFX "Invalid error block length: %u for generic hardware error source: %d\n",
 			   generic->error_block_length,
 			   generic->header.source_id);
diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
index 0bd750ebeb49..556c83ee6b42 100644
--- a/include/acpi/actbl1.h
+++ b/include/acpi/actbl1.h
@@ -596,7 +596,7 @@ struct acpi_hest_generic {
 
 /* Generic Error Status block */
 
-struct acpi_hest_generic_status {
+struct acpi_generic_status {
 	u32 block_status;
 	u32 raw_data_offset;
 	u32 raw_data_length;
@@ -606,15 +606,15 @@ struct acpi_hest_generic_status {
 
 /* Values for block_status flags above */
 
-#define ACPI_HEST_UNCORRECTABLE             (1)
-#define ACPI_HEST_CORRECTABLE               (1<<1)
-#define ACPI_HEST_MULTIPLE_UNCORRECTABLE    (1<<2)
-#define ACPI_HEST_MULTIPLE_CORRECTABLE      (1<<3)
-#define ACPI_HEST_ERROR_ENTRY_COUNT         (0xFF<<4)	/* 8 bits, error count */
+#define ACPI_GEN_ERR_UC			BIT(0)
+#define ACPI_GEN_ERR_CE			BIT(1)
+#define ACPI_GEN_ERR_MULTI_UC		BIT(2)
+#define ACPI_GEN_ERR_MULTI_CE		BIT(3)
+#define ACPI_GEN_ERR_COUNT_SHIFT	(0xFF<<4) /* 8 bits, error count */
 
 /* Generic Error Data entry */
 
-struct acpi_hest_generic_data {
+struct acpi_generic_data {
 	u8 section_type[16];
 	u32 error_severity;
 	u16 revision;
diff --git a/include/acpi/ghes.h b/include/acpi/ghes.h
index 720446cb243e..dfd60d0bfd27 100644
--- a/include/acpi/ghes.h
+++ b/include/acpi/ghes.h
@@ -14,7 +14,7 @@
 
 struct ghes {
 	struct acpi_hest_generic *generic;
-	struct acpi_hest_generic_status *estatus;
+	struct acpi_generic_status *estatus;
 	u64 buffer_paddr;
 	unsigned long flags;
 	union {
diff --git a/include/linux/cper.h b/include/linux/cper.h
index c23049496531..09ebe2113641 100644
--- a/include/linux/cper.h
+++ b/include/linux/cper.h
@@ -389,6 +389,6 @@ struct cper_sec_pcie {
 
 u64 cper_next_record_id(void);
 void cper_print_bits(const char *prefix, unsigned int bits,
-		     const char *strs[], unsigned int strs_size);
+		     const char * const strs[], unsigned int strs_size);
 
 #endif
-- 
cgit 


From 10ef6b0dffe404bcc54e94cb2ca1a5b18445a66b Mon Sep 17 00:00:00 2001
From: "Chen, Gong" <gong.chen@linux.intel.com>
Date: Fri, 18 Oct 2013 14:29:07 -0700
Subject: bitops: Introduce a more generic BITMASK macro

GENMASK is used to create a contiguous bitmask([hi:lo]). It is
implemented twice in current kernel. One is in EDAC driver, the other
is in SiS/XGI FB driver. Move it to a more generic place for other
usage.

Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Borislav Petkov <bp@suse.de>
Acked-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
 drivers/edac/amd64_edac.c | 46 ++++++++++++++++++++++++----------------------
 drivers/edac/amd64_edac.h |  8 --------
 drivers/edac/sb_edac.c    |  2 +-
 drivers/video/sis/init.c  |  5 ++---
 include/linux/bitops.h    |  8 ++++++++
 5 files changed, 35 insertions(+), 34 deletions(-)

diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c
index 3c9e4e98c651..b53d0de17e15 100644
--- a/drivers/edac/amd64_edac.c
+++ b/drivers/edac/amd64_edac.c
@@ -339,8 +339,8 @@ static void get_cs_base_and_mask(struct amd64_pvt *pvt, int csrow, u8 dct,
 	if (pvt->fam == 0xf && pvt->ext_model < K8_REV_F) {
 		csbase		= pvt->csels[dct].csbases[csrow];
 		csmask		= pvt->csels[dct].csmasks[csrow];
-		base_bits	= GENMASK(21, 31) | GENMASK(9, 15);
-		mask_bits	= GENMASK(21, 29) | GENMASK(9, 15);
+		base_bits	= GENMASK_ULL(31, 21) | GENMASK_ULL(15, 9);
+		mask_bits	= GENMASK_ULL(29, 21) | GENMASK_ULL(15, 9);
 		addr_shift	= 4;
 
 	/*
@@ -352,16 +352,16 @@ static void get_cs_base_and_mask(struct amd64_pvt *pvt, int csrow, u8 dct,
 		csbase          = pvt->csels[dct].csbases[csrow];
 		csmask          = pvt->csels[dct].csmasks[csrow >> 1];
 
-		*base  = (csbase & GENMASK(5,  15)) << 6;
-		*base |= (csbase & GENMASK(19, 30)) << 8;
+		*base  = (csbase & GENMASK_ULL(15,  5)) << 6;
+		*base |= (csbase & GENMASK_ULL(30, 19)) << 8;
 
 		*mask = ~0ULL;
 		/* poke holes for the csmask */
-		*mask &= ~((GENMASK(5, 15)  << 6) |
-			   (GENMASK(19, 30) << 8));
+		*mask &= ~((GENMASK_ULL(15, 5)  << 6) |
+			   (GENMASK_ULL(30, 19) << 8));
 
-		*mask |= (csmask & GENMASK(5, 15))  << 6;
-		*mask |= (csmask & GENMASK(19, 30)) << 8;
+		*mask |= (csmask & GENMASK_ULL(15, 5))  << 6;
+		*mask |= (csmask & GENMASK_ULL(30, 19)) << 8;
 
 		return;
 	} else {
@@ -370,9 +370,11 @@ static void get_cs_base_and_mask(struct amd64_pvt *pvt, int csrow, u8 dct,
 		addr_shift	= 8;
 
 		if (pvt->fam == 0x15)
-			base_bits = mask_bits = GENMASK(19,30) | GENMASK(5,13);
+			base_bits = mask_bits =
+				GENMASK_ULL(30,19) | GENMASK_ULL(13,5);
 		else
-			base_bits = mask_bits = GENMASK(19,28) | GENMASK(5,13);
+			base_bits = mask_bits =
+				GENMASK_ULL(28,19) | GENMASK_ULL(13,5);
 	}
 
 	*base  = (csbase & base_bits) << addr_shift;
@@ -561,7 +563,7 @@ static u64 sys_addr_to_dram_addr(struct mem_ctl_info *mci, u64 sys_addr)
 	 * section 3.4.2 of AMD publication 24592: AMD x86-64 Architecture
 	 * Programmer's Manual Volume 1 Application Programming.
 	 */
-	dram_addr = (sys_addr & GENMASK(0, 39)) - dram_base;
+	dram_addr = (sys_addr & GENMASK_ULL(39, 0)) - dram_base;
 
 	edac_dbg(2, "using DRAM Base register to translate SysAddr 0x%lx to DramAddr 0x%lx\n",
 		 (unsigned long)sys_addr, (unsigned long)dram_addr);
@@ -597,7 +599,7 @@ static u64 dram_addr_to_input_addr(struct mem_ctl_info *mci, u64 dram_addr)
 	 * concerning translating a DramAddr to an InputAddr.
 	 */
 	intlv_shift = num_node_interleave_bits(dram_intlv_en(pvt, 0));
-	input_addr = ((dram_addr >> intlv_shift) & GENMASK(12, 35)) +
+	input_addr = ((dram_addr >> intlv_shift) & GENMASK_ULL(35, 12)) +
 		      (dram_addr & 0xfff);
 
 	edac_dbg(2, "  Intlv Shift=%d DramAddr=0x%lx maps to InputAddr=0x%lx\n",
@@ -849,7 +851,7 @@ static u64 get_error_address(struct amd64_pvt *pvt, struct mce *m)
 		end_bit   = 39;
 	}
 
-	addr = m->addr & GENMASK(start_bit, end_bit);
+	addr = m->addr & GENMASK_ULL(end_bit, start_bit);
 
 	/*
 	 * Erratum 637 workaround
@@ -861,7 +863,7 @@ static u64 get_error_address(struct amd64_pvt *pvt, struct mce *m)
 		u16 mce_nid;
 		u8 intlv_en;
 
-		if ((addr & GENMASK(24, 47)) >> 24 != 0x00fdf7)
+		if ((addr & GENMASK_ULL(47, 24)) >> 24 != 0x00fdf7)
 			return addr;
 
 		mce_nid	= amd_get_nb_id(m->extcpu);
@@ -871,7 +873,7 @@ static u64 get_error_address(struct amd64_pvt *pvt, struct mce *m)
 		intlv_en = tmp >> 21 & 0x7;
 
 		/* add [47:27] + 3 trailing bits */
-		cc6_base  = (tmp & GENMASK(0, 20)) << 3;
+		cc6_base  = (tmp & GENMASK_ULL(20, 0)) << 3;
 
 		/* reverse and add DramIntlvEn */
 		cc6_base |= intlv_en ^ 0x7;
@@ -880,18 +882,18 @@ static u64 get_error_address(struct amd64_pvt *pvt, struct mce *m)
 		cc6_base <<= 24;
 
 		if (!intlv_en)
-			return cc6_base | (addr & GENMASK(0, 23));
+			return cc6_base | (addr & GENMASK_ULL(23, 0));
 
 		amd64_read_pci_cfg(pvt->F1, DRAM_LOCAL_NODE_BASE, &tmp);
 
 							/* faster log2 */
-		tmp_addr  = (addr & GENMASK(12, 23)) << __fls(intlv_en + 1);
+		tmp_addr  = (addr & GENMASK_ULL(23, 12)) << __fls(intlv_en + 1);
 
 		/* OR DramIntlvSel into bits [14:12] */
-		tmp_addr |= (tmp & GENMASK(21, 23)) >> 9;
+		tmp_addr |= (tmp & GENMASK_ULL(23, 21)) >> 9;
 
 		/* add remaining [11:0] bits from original MC4_ADDR */
-		tmp_addr |= addr & GENMASK(0, 11);
+		tmp_addr |= addr & GENMASK_ULL(11, 0);
 
 		return cc6_base | tmp_addr;
 	}
@@ -952,12 +954,12 @@ static void read_dram_base_limit_regs(struct amd64_pvt *pvt, unsigned range)
 
 	amd64_read_pci_cfg(f1, DRAM_LOCAL_NODE_LIM, &llim);
 
-	pvt->ranges[range].lim.lo &= GENMASK(0, 15);
+	pvt->ranges[range].lim.lo &= GENMASK_ULL(15, 0);
 
 				    /* {[39:27],111b} */
 	pvt->ranges[range].lim.lo |= ((llim & 0x1fff) << 3 | 0x7) << 16;
 
-	pvt->ranges[range].lim.hi &= GENMASK(0, 7);
+	pvt->ranges[range].lim.hi &= GENMASK_ULL(7, 0);
 
 				    /* [47:40] */
 	pvt->ranges[range].lim.hi |= llim >> 13;
@@ -1330,7 +1332,7 @@ static u64 f1x_get_norm_dct_addr(struct amd64_pvt *pvt, u8 range,
 			chan_off = dram_base;
 	}
 
-	return (sys_addr & GENMASK(6,47)) - (chan_off & GENMASK(23,47));
+	return (sys_addr & GENMASK_ULL(47,6)) - (chan_off & GENMASK_ULL(47,23));
 }
 
 /*
diff --git a/drivers/edac/amd64_edac.h b/drivers/edac/amd64_edac.h
index d2443cfa0698..6dc1fcc25afb 100644
--- a/drivers/edac/amd64_edac.h
+++ b/drivers/edac/amd64_edac.h
@@ -159,14 +159,6 @@
 #define ON true
 #define OFF false
 
-/*
- * Create a contiguous bitmask starting at bit position @lo and ending at
- * position @hi. For example
- *
- * GENMASK(21, 39) gives us the 64bit vector 0x000000ffffe00000.
- */
-#define GENMASK(lo, hi)			(((1ULL << ((hi) - (lo) + 1)) - 1) << (lo))
-
 /*
  * PCI-defined configuration space registers
  */
diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index e04462b60756..88f60c5fecbc 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -50,7 +50,7 @@ static int probed;
  * Get a bit field at register value <v>, from bit <lo> to bit <hi>
  */
 #define GET_BITFIELD(v, lo, hi)	\
-	(((v) & ((1ULL << ((hi) - (lo) + 1)) - 1) << (lo)) >> (lo))
+	(((v) & GENMASK_ULL(hi, lo)) >> (lo))
 
 /*
  * sbridge Memory Controller Registers
diff --git a/drivers/video/sis/init.c b/drivers/video/sis/init.c
index f082ae55c0c9..4f26bc28e60b 100644
--- a/drivers/video/sis/init.c
+++ b/drivers/video/sis/init.c
@@ -3320,9 +3320,8 @@ SiSSetMode(struct SiS_Private *SiS_Pr, unsigned short ModeNo)
 }
 
 #ifndef GETBITSTR
-#define BITMASK(h,l)    	(((unsigned)(1U << ((h)-(l)+1))-1)<<(l))
-#define GENMASK(mask)   	BITMASK(1?mask,0?mask)
-#define GETBITS(var,mask)   	(((var) & GENMASK(mask)) >> (0?mask))
+#define GENBITSMASK(mask)   	GENMASK(1?mask,0?mask)
+#define GETBITS(var,mask)   	(((var) & GENBITSMASK(mask)) >> (0?mask))
 #define GETBITSTR(val,from,to)  ((GETBITS(val,from)) << (0?to))
 #endif
 
diff --git a/include/linux/bitops.h b/include/linux/bitops.h
index a3b6b82108b9..bd0c4598d03b 100644
--- a/include/linux/bitops.h
+++ b/include/linux/bitops.h
@@ -10,6 +10,14 @@
 #define BITS_TO_LONGS(nr)	DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
 #endif
 
+/*
+ * Create a contiguous bitmask starting at bit position @l and ending at
+ * position @h. For example
+ * GENMASK_ULL(39, 21) gives us the 64bit vector 0x000000ffffe00000.
+ */
+#define GENMASK(h, l)		(((U32_C(1) << ((h) - (l) + 1)) - 1) << (l))
+#define GENMASK_ULL(h, l)	(((U64_C(1) << ((h) - (l) + 1)) - 1) << (l))
+
 extern unsigned int __sw_hweight8(unsigned int w);
 extern unsigned int __sw_hweight16(unsigned int w);
 extern unsigned int __sw_hweight32(unsigned int w);
-- 
cgit 


From cd91cce620907eb3c5b3e8b4d62aadf0a19baba9 Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Sat, 19 Oct 2013 16:24:02 -0700
Subject: tcp_memcontrol: Remove tcp_max_memory

This function is never called. Remove it.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/tcp_memcontrol.h |  1 -
 net/ipv4/tcp_memcontrol.c    | 13 -------------
 2 files changed, 14 deletions(-)

diff --git a/include/net/tcp_memcontrol.h b/include/net/tcp_memcontrol.h
index 7df18bc43a97..88cdd1cb992e 100644
--- a/include/net/tcp_memcontrol.h
+++ b/include/net/tcp_memcontrol.h
@@ -14,6 +14,5 @@ struct tcp_memcontrol {
 struct cg_proto *tcp_proto_cgroup(struct mem_cgroup *memcg);
 int tcp_init_cgroup(struct mem_cgroup *memcg, struct cgroup_subsys *ss);
 void tcp_destroy_cgroup(struct mem_cgroup *memcg);
-unsigned long long tcp_max_memory(const struct mem_cgroup *memcg);
 void tcp_prot_mem(struct mem_cgroup *memcg, long val, int idx);
 #endif /* _TCP_MEMCG_H */
diff --git a/net/ipv4/tcp_memcontrol.c b/net/ipv4/tcp_memcontrol.c
index 559d4ae6ebf4..82985d1dc9af 100644
--- a/net/ipv4/tcp_memcontrol.c
+++ b/net/ipv4/tcp_memcontrol.c
@@ -226,19 +226,6 @@ static int tcp_cgroup_reset(struct cgroup_subsys_state *css, unsigned int event)
 	return 0;
 }
 
-unsigned long long tcp_max_memory(const struct mem_cgroup *memcg)
-{
-	struct tcp_memcontrol *tcp;
-	struct cg_proto *cg_proto;
-
-	cg_proto = tcp_prot.proto_cgroup((struct mem_cgroup *)memcg);
-	if (!cg_proto)
-		return 0;
-
-	tcp = tcp_from_cgproto(cg_proto);
-	return res_counter_read_u64(&tcp->tcp_memory_allocated, RES_LIMIT);
-}
-
 void tcp_prot_mem(struct mem_cgroup *memcg, long val, int idx)
 {
 	struct tcp_memcontrol *tcp;
-- 
cgit 


From f594d63199688ad568fb69f6a790b11d6d6d1ba5 Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Sat, 19 Oct 2013 16:24:52 -0700
Subject: tcp_memcontrol: Remove setting cgroup settings via sysctl

The code is broken and does not constrain sysctl_tcp_mem as
tcp_update_limit does.  With the result that it allows the cgroup tcp
memory limits to be bypassed.

The semantics are broken as the settings are not per netns and are in a
per netns table, and instead looks at current.

Since the code is broken in both design and implementation and does not
implement the functionality for which it was written remove it.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/tcp_memcontrol.h |  1 -
 net/ipv4/sysctl_net_ipv4.c   | 39 ++-------------------------------------
 net/ipv4/tcp_memcontrol.c    | 14 --------------
 3 files changed, 2 insertions(+), 52 deletions(-)

diff --git a/include/net/tcp_memcontrol.h b/include/net/tcp_memcontrol.h
index 88cdd1cb992e..af0c0680a873 100644
--- a/include/net/tcp_memcontrol.h
+++ b/include/net/tcp_memcontrol.h
@@ -14,5 +14,4 @@ struct tcp_memcontrol {
 struct cg_proto *tcp_proto_cgroup(struct mem_cgroup *memcg);
 int tcp_init_cgroup(struct mem_cgroup *memcg, struct cgroup_subsys *ss);
 void tcp_destroy_cgroup(struct mem_cgroup *memcg);
-void tcp_prot_mem(struct mem_cgroup *memcg, long val, int idx);
 #endif /* _TCP_MEMCG_H */
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 4b161d5aba0b..8457f7bc4d89 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -204,43 +204,8 @@ static int ipv4_tcp_mem(struct ctl_table *ctl, int write,
 			   void __user *buffer, size_t *lenp,
 			   loff_t *ppos)
 {
-	int ret;
-	unsigned long vec[3];
-	struct net *net = current->nsproxy->net_ns;
-#ifdef CONFIG_MEMCG_KMEM
-	struct mem_cgroup *memcg;
-#endif
-
-	struct ctl_table tmp = {
-		.data = &vec,
-		.maxlen = sizeof(vec),
-		.mode = ctl->mode,
-	};
-
-	if (!write) {
-		ctl->data = &net->ipv4.sysctl_tcp_mem;
-		return proc_doulongvec_minmax(ctl, write, buffer, lenp, ppos);
-	}
-
-	ret = proc_doulongvec_minmax(&tmp, write, buffer, lenp, ppos);
-	if (ret)
-		return ret;
-
-#ifdef CONFIG_MEMCG_KMEM
-	rcu_read_lock();
-	memcg = mem_cgroup_from_task(current);
-
-	tcp_prot_mem(memcg, vec[0], 0);
-	tcp_prot_mem(memcg, vec[1], 1);
-	tcp_prot_mem(memcg, vec[2], 2);
-	rcu_read_unlock();
-#endif
-
-	net->ipv4.sysctl_tcp_mem[0] = vec[0];
-	net->ipv4.sysctl_tcp_mem[1] = vec[1];
-	net->ipv4.sysctl_tcp_mem[2] = vec[2];
-
-	return 0;
+	ctl->data = &current->nsproxy->net_ns->ipv4.sysctl_tcp_mem;
+	return proc_doulongvec_minmax(ctl, write, buffer, lenp, ppos);
 }
 
 static int proc_tcp_fastopen_key(struct ctl_table *ctl, int write,
diff --git a/net/ipv4/tcp_memcontrol.c b/net/ipv4/tcp_memcontrol.c
index 82985d1dc9af..e7c01fcf5716 100644
--- a/net/ipv4/tcp_memcontrol.c
+++ b/net/ipv4/tcp_memcontrol.c
@@ -226,20 +226,6 @@ static int tcp_cgroup_reset(struct cgroup_subsys_state *css, unsigned int event)
 	return 0;
 }
 
-void tcp_prot_mem(struct mem_cgroup *memcg, long val, int idx)
-{
-	struct tcp_memcontrol *tcp;
-	struct cg_proto *cg_proto;
-
-	cg_proto = tcp_prot.proto_cgroup(memcg);
-	if (!cg_proto)
-		return;
-
-	tcp = tcp_from_cgproto(cg_proto);
-
-	tcp->tcp_prot_mem[idx] = val;
-}
-
 static struct cftype tcp_files[] = {
 	{
 		.name = "kmem.tcp.limit_in_bytes",
-- 
cgit 


From a4fe34bf902b8f709c635ab37f1f39de0b86cff2 Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Sat, 19 Oct 2013 16:25:36 -0700
Subject: tcp_memcontrol: Remove the per netns control.

The code that is implemented is per memory cgroup not per netns, and
having per netns bits is just confusing.  Remove the per netns bits to
make it easier to see what is really going on.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/netns/ipv4.h   |  1 -
 include/net/tcp.h          |  3 +--
 net/ipv4/af_inet.c         |  2 --
 net/ipv4/sysctl_net_ipv4.c | 23 +++++++----------------
 net/ipv4/tcp.c             | 12 +++++++-----
 net/ipv4/tcp_ipv4.c        |  1 +
 net/ipv4/tcp_memcontrol.c  | 10 ++++------
 net/ipv6/af_inet6.c        |  2 --
 net/ipv6/tcp_ipv6.c        |  1 +
 9 files changed, 21 insertions(+), 34 deletions(-)

diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h
index 5dbd232e12ff..ee520cba2ec2 100644
--- a/include/net/netns/ipv4.h
+++ b/include/net/netns/ipv4.h
@@ -71,7 +71,6 @@ struct netns_ipv4 {
 	int sysctl_tcp_ecn;
 
 	kgid_t sysctl_ping_group_range[2];
-	long sysctl_tcp_mem[3];
 
 	atomic_t dev_addr_genid;
 
diff --git a/include/net/tcp.h b/include/net/tcp.h
index b12e29a76590..2d7b4bdc972f 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -259,6 +259,7 @@ extern int sysctl_tcp_max_orphans;
 extern int sysctl_tcp_fack;
 extern int sysctl_tcp_reordering;
 extern int sysctl_tcp_dsack;
+extern long sysctl_tcp_mem[3];
 extern int sysctl_tcp_wmem[3];
 extern int sysctl_tcp_rmem[3];
 extern int sysctl_tcp_app_win;
@@ -348,8 +349,6 @@ extern struct proto tcp_prot;
 #define TCP_ADD_STATS_USER(net, field, val) SNMP_ADD_STATS_USER((net)->mib.tcp_statistics, field, val)
 #define TCP_ADD_STATS(net, field, val)	SNMP_ADD_STATS((net)->mib.tcp_statistics, field, val)
 
-void tcp_init_mem(struct net *net);
-
 void tcp_tasklet_init(void);
 
 void tcp_v4_err(struct sk_buff *skb, u32);
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 9433a6186f54..24a53fc275b0 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1697,8 +1697,6 @@ static int __init inet_init(void)
 	ip_static_sysctl_init();
 #endif
 
-	tcp_prot.sysctl_mem = init_net.ipv4.sysctl_tcp_mem;
-
 	/*
 	 *	Add all the base protocols.
 	 */
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 8457f7bc4d89..69c6a8dbe09d 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -200,14 +200,6 @@ static int proc_allowed_congestion_control(struct ctl_table *ctl,
 	return ret;
 }
 
-static int ipv4_tcp_mem(struct ctl_table *ctl, int write,
-			   void __user *buffer, size_t *lenp,
-			   loff_t *ppos)
-{
-	ctl->data = &current->nsproxy->net_ns->ipv4.sysctl_tcp_mem;
-	return proc_doulongvec_minmax(ctl, write, buffer, lenp, ppos);
-}
-
 static int proc_tcp_fastopen_key(struct ctl_table *ctl, int write,
 				 void __user *buffer, size_t *lenp,
 				 loff_t *ppos)
@@ -521,6 +513,13 @@ static struct ctl_table ipv4_table[] = {
 		.mode		= 0644,
 		.proc_handler	= proc_dointvec
 	},
+	{
+		.procname	= "tcp_mem",
+		.maxlen		= sizeof(sysctl_tcp_mem),
+		.data		= &sysctl_tcp_mem,
+		.mode		= 0644,
+		.proc_handler	= proc_doulongvec_minmax,
+	},
 	{
 		.procname	= "tcp_wmem",
 		.data		= &sysctl_tcp_wmem,
@@ -830,12 +829,6 @@ static struct ctl_table ipv4_net_table[] = {
 		.mode		= 0644,
 		.proc_handler	= ipv4_local_port_range,
 	},
-	{
-		.procname	= "tcp_mem",
-		.maxlen		= sizeof(init_net.ipv4.sysctl_tcp_mem),
-		.mode		= 0644,
-		.proc_handler	= ipv4_tcp_mem,
-	},
 	{ }
 };
 
@@ -887,8 +880,6 @@ static __net_init int ipv4_sysctl_init_net(struct net *net)
 	net->ipv4.sysctl_local_ports.range[0] =  32768;
 	net->ipv4.sysctl_local_ports.range[1] =  61000;
 
-	tcp_init_mem(net);
-
 	net->ipv4.ipv4_hdr = register_net_sysctl(net, "net/ipv4", table);
 	if (net->ipv4.ipv4_hdr == NULL)
 		goto err_reg;
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index be4b161802e8..8e8529d3c8c9 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -288,9 +288,11 @@ int sysctl_tcp_min_tso_segs __read_mostly = 2;
 struct percpu_counter tcp_orphan_count;
 EXPORT_SYMBOL_GPL(tcp_orphan_count);
 
+long sysctl_tcp_mem[3] __read_mostly;
 int sysctl_tcp_wmem[3] __read_mostly;
 int sysctl_tcp_rmem[3] __read_mostly;
 
+EXPORT_SYMBOL(sysctl_tcp_mem);
 EXPORT_SYMBOL(sysctl_tcp_rmem);
 EXPORT_SYMBOL(sysctl_tcp_wmem);
 
@@ -3097,13 +3099,13 @@ static int __init set_thash_entries(char *str)
 }
 __setup("thash_entries=", set_thash_entries);
 
-void tcp_init_mem(struct net *net)
+static void tcp_init_mem(void)
 {
 	unsigned long limit = nr_free_buffer_pages() / 8;
 	limit = max(limit, 128UL);
-	net->ipv4.sysctl_tcp_mem[0] = limit / 4 * 3;
-	net->ipv4.sysctl_tcp_mem[1] = limit;
-	net->ipv4.sysctl_tcp_mem[2] = net->ipv4.sysctl_tcp_mem[0] * 2;
+	sysctl_tcp_mem[0] = limit / 4 * 3;
+	sysctl_tcp_mem[1] = limit;
+	sysctl_tcp_mem[2] = sysctl_tcp_mem[0] * 2;
 }
 
 void __init tcp_init(void)
@@ -3165,7 +3167,7 @@ void __init tcp_init(void)
 	sysctl_tcp_max_orphans = cnt / 2;
 	sysctl_max_syn_backlog = max(128, cnt / 256);
 
-	tcp_init_mem(&init_net);
+	tcp_init_mem();
 	/* Set per-socket limits to no more than 1/128 the pressure threshold */
 	limit = nr_free_buffer_pages() << (PAGE_SHIFT - 7);
 	max_wshare = min(4UL*1024*1024, limit);
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 114d1b748cbb..300ab2c93f29 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2749,6 +2749,7 @@ struct proto tcp_prot = {
 	.orphan_count		= &tcp_orphan_count,
 	.memory_allocated	= &tcp_memory_allocated,
 	.memory_pressure	= &tcp_memory_pressure,
+	.sysctl_mem		= sysctl_tcp_mem,
 	.sysctl_wmem		= sysctl_tcp_wmem,
 	.sysctl_rmem		= sysctl_tcp_rmem,
 	.max_header		= MAX_TCP_HEADER,
diff --git a/net/ipv4/tcp_memcontrol.c b/net/ipv4/tcp_memcontrol.c
index e7c01fcf5716..86feaa0d6d70 100644
--- a/net/ipv4/tcp_memcontrol.c
+++ b/net/ipv4/tcp_memcontrol.c
@@ -29,7 +29,6 @@ int tcp_init_cgroup(struct mem_cgroup *memcg, struct cgroup_subsys *ss)
 	struct cg_proto *cg_proto, *parent_cg;
 	struct tcp_memcontrol *tcp;
 	struct mem_cgroup *parent = parent_mem_cgroup(memcg);
-	struct net *net = current->nsproxy->net_ns;
 
 	cg_proto = tcp_prot.proto_cgroup(memcg);
 	if (!cg_proto)
@@ -37,9 +36,9 @@ int tcp_init_cgroup(struct mem_cgroup *memcg, struct cgroup_subsys *ss)
 
 	tcp = tcp_from_cgproto(cg_proto);
 
-	tcp->tcp_prot_mem[0] = net->ipv4.sysctl_tcp_mem[0];
-	tcp->tcp_prot_mem[1] = net->ipv4.sysctl_tcp_mem[1];
-	tcp->tcp_prot_mem[2] = net->ipv4.sysctl_tcp_mem[2];
+	tcp->tcp_prot_mem[0] = sysctl_tcp_mem[0];
+	tcp->tcp_prot_mem[1] = sysctl_tcp_mem[1];
+	tcp->tcp_prot_mem[2] = sysctl_tcp_mem[2];
 	tcp->tcp_memory_pressure = 0;
 
 	parent_cg = tcp_prot.proto_cgroup(parent);
@@ -76,7 +75,6 @@ EXPORT_SYMBOL(tcp_destroy_cgroup);
 
 static int tcp_update_limit(struct mem_cgroup *memcg, u64 val)
 {
-	struct net *net = current->nsproxy->net_ns;
 	struct tcp_memcontrol *tcp;
 	struct cg_proto *cg_proto;
 	u64 old_lim;
@@ -99,7 +97,7 @@ static int tcp_update_limit(struct mem_cgroup *memcg, u64 val)
 
 	for (i = 0; i < 3; i++)
 		tcp->tcp_prot_mem[i] = min_t(long, val >> PAGE_SHIFT,
-					     net->ipv4.sysctl_tcp_mem[i]);
+					     sysctl_tcp_mem[i]);
 
 	if (val == RES_COUNTER_MAX)
 		clear_bit(MEMCG_SOCK_ACTIVE, &cg_proto->flags);
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 20af1fb81c83..6468bda1f2b9 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -865,8 +865,6 @@ static int __init inet6_init(void)
 	if (err)
 		goto out_sock_register_fail;
 
-	tcpv6_prot.sysctl_mem = init_net.ipv4.sysctl_tcp_mem;
-
 	/*
 	 *	ipngwg API draft makes clear that the correct semantics
 	 *	for TCP and UDP is to consider one TCP and UDP instance
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index b996ee2005a9..0740f93a114a 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1929,6 +1929,7 @@ struct proto tcpv6_prot = {
 	.memory_allocated	= &tcp_memory_allocated,
 	.memory_pressure	= &tcp_memory_pressure,
 	.orphan_count		= &tcp_orphan_count,
+	.sysctl_mem		= sysctl_tcp_mem,
 	.sysctl_wmem		= sysctl_tcp_wmem,
 	.sysctl_rmem		= sysctl_tcp_rmem,
 	.max_header		= MAX_TCP_HEADER,
-- 
cgit 


From 2e685cad57906e19add7189b5ff49dfb6aaa21d3 Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Sat, 19 Oct 2013 16:26:19 -0700
Subject: tcp_memcontrol: Kill struct tcp_memcontrol

Replace the pointers in struct cg_proto with actual data fields and kill
struct tcp_memcontrol as it is not fully redundant.

This removes a confusing, unnecessary layer of abstraction.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/sock.h           | 28 ++++++++++----------
 include/net/tcp_memcontrol.h | 10 --------
 mm/memcontrol.c              |  6 ++---
 net/ipv4/tcp_memcontrol.c    | 61 +++++++++++++-------------------------------
 4 files changed, 35 insertions(+), 70 deletions(-)

diff --git a/include/net/sock.h b/include/net/sock.h
index 7e50df5c71d4..86bb0668c581 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1036,10 +1036,10 @@ enum cg_proto_flags {
 
 struct cg_proto {
 	void			(*enter_memory_pressure)(struct sock *sk);
-	struct res_counter	*memory_allocated;	/* Current allocated memory. */
-	struct percpu_counter	*sockets_allocated;	/* Current number of sockets. */
-	int			*memory_pressure;
-	long			*sysctl_mem;
+	struct res_counter	memory_allocated;	/* Current allocated memory. */
+	struct percpu_counter	sockets_allocated;	/* Current number of sockets. */
+	int			memory_pressure;
+	long			sysctl_mem[3];
 	unsigned long		flags;
 	/*
 	 * memcg field is used to find which memcg we belong directly
@@ -1135,9 +1135,9 @@ static inline bool sk_under_memory_pressure(const struct sock *sk)
 		return false;
 
 	if (mem_cgroup_sockets_enabled && sk->sk_cgrp)
-		return !!*sk->sk_cgrp->memory_pressure;
+		return !!sk->sk_cgrp->memory_pressure;
 
-	return !!*sk->sk_prot->memory_pressure;
+	return !!sk->sk_prot->memory_pressure;
 }
 
 static inline void sk_leave_memory_pressure(struct sock *sk)
@@ -1155,8 +1155,8 @@ static inline void sk_leave_memory_pressure(struct sock *sk)
 		struct proto *prot = sk->sk_prot;
 
 		for (; cg_proto; cg_proto = parent_cg_proto(prot, cg_proto))
-			if (*cg_proto->memory_pressure)
-				*cg_proto->memory_pressure = 0;
+			if (cg_proto->memory_pressure)
+				cg_proto->memory_pressure = 0;
 	}
 
 }
@@ -1192,7 +1192,7 @@ static inline void memcg_memory_allocated_add(struct cg_proto *prot,
 	struct res_counter *fail;
 	int ret;
 
-	ret = res_counter_charge_nofail(prot->memory_allocated,
+	ret = res_counter_charge_nofail(&prot->memory_allocated,
 					amt << PAGE_SHIFT, &fail);
 	if (ret < 0)
 		*parent_status = OVER_LIMIT;
@@ -1201,13 +1201,13 @@ static inline void memcg_memory_allocated_add(struct cg_proto *prot,
 static inline void memcg_memory_allocated_sub(struct cg_proto *prot,
 					      unsigned long amt)
 {
-	res_counter_uncharge(prot->memory_allocated, amt << PAGE_SHIFT);
+	res_counter_uncharge(&prot->memory_allocated, amt << PAGE_SHIFT);
 }
 
 static inline u64 memcg_memory_allocated_read(struct cg_proto *prot)
 {
 	u64 ret;
-	ret = res_counter_read_u64(prot->memory_allocated, RES_USAGE);
+	ret = res_counter_read_u64(&prot->memory_allocated, RES_USAGE);
 	return ret >> PAGE_SHIFT;
 }
 
@@ -1255,7 +1255,7 @@ static inline void sk_sockets_allocated_dec(struct sock *sk)
 		struct cg_proto *cg_proto = sk->sk_cgrp;
 
 		for (; cg_proto; cg_proto = parent_cg_proto(prot, cg_proto))
-			percpu_counter_dec(cg_proto->sockets_allocated);
+			percpu_counter_dec(&cg_proto->sockets_allocated);
 	}
 
 	percpu_counter_dec(prot->sockets_allocated);
@@ -1269,7 +1269,7 @@ static inline void sk_sockets_allocated_inc(struct sock *sk)
 		struct cg_proto *cg_proto = sk->sk_cgrp;
 
 		for (; cg_proto; cg_proto = parent_cg_proto(prot, cg_proto))
-			percpu_counter_inc(cg_proto->sockets_allocated);
+			percpu_counter_inc(&cg_proto->sockets_allocated);
 	}
 
 	percpu_counter_inc(prot->sockets_allocated);
@@ -1281,7 +1281,7 @@ sk_sockets_allocated_read_positive(struct sock *sk)
 	struct proto *prot = sk->sk_prot;
 
 	if (mem_cgroup_sockets_enabled && sk->sk_cgrp)
-		return percpu_counter_read_positive(sk->sk_cgrp->sockets_allocated);
+		return percpu_counter_read_positive(&sk->sk_cgrp->sockets_allocated);
 
 	return percpu_counter_read_positive(prot->sockets_allocated);
 }
diff --git a/include/net/tcp_memcontrol.h b/include/net/tcp_memcontrol.h
index af0c0680a873..05b94d9453de 100644
--- a/include/net/tcp_memcontrol.h
+++ b/include/net/tcp_memcontrol.h
@@ -1,16 +1,6 @@
 #ifndef _TCP_MEMCG_H
 #define _TCP_MEMCG_H
 
-struct tcp_memcontrol {
-	struct cg_proto cg_proto;
-	/* per-cgroup tcp memory pressure knobs */
-	struct res_counter tcp_memory_allocated;
-	struct percpu_counter tcp_sockets_allocated;
-	/* those two are read-mostly, leave them at the end */
-	long tcp_prot_mem[3];
-	int tcp_memory_pressure;
-};
-
 struct cg_proto *tcp_proto_cgroup(struct mem_cgroup *memcg);
 int tcp_init_cgroup(struct mem_cgroup *memcg, struct cgroup_subsys *ss);
 void tcp_destroy_cgroup(struct mem_cgroup *memcg);
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 1c52ddbc839b..28243f7d9c23 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -311,7 +311,7 @@ struct mem_cgroup {
 
 	atomic_t	dead_count;
 #if defined(CONFIG_MEMCG_KMEM) && defined(CONFIG_INET)
-	struct tcp_memcontrol tcp_mem;
+	struct cg_proto tcp_mem;
 #endif
 #if defined(CONFIG_MEMCG_KMEM)
 	/* analogous to slab_common's slab_caches list. per-memcg */
@@ -550,13 +550,13 @@ struct cg_proto *tcp_proto_cgroup(struct mem_cgroup *memcg)
 	if (!memcg || mem_cgroup_is_root(memcg))
 		return NULL;
 
-	return &memcg->tcp_mem.cg_proto;
+	return &memcg->tcp_mem;
 }
 EXPORT_SYMBOL(tcp_proto_cgroup);
 
 static void disarm_sock_keys(struct mem_cgroup *memcg)
 {
-	if (!memcg_proto_activated(&memcg->tcp_mem.cg_proto))
+	if (!memcg_proto_activated(&memcg->tcp_mem))
 		return;
 	static_key_slow_dec(&memcg_socket_limit_enabled);
 }
diff --git a/net/ipv4/tcp_memcontrol.c b/net/ipv4/tcp_memcontrol.c
index 86feaa0d6d70..03e9154f7e68 100644
--- a/net/ipv4/tcp_memcontrol.c
+++ b/net/ipv4/tcp_memcontrol.c
@@ -6,15 +6,10 @@
 #include <linux/memcontrol.h>
 #include <linux/module.h>
 
-static inline struct tcp_memcontrol *tcp_from_cgproto(struct cg_proto *cg_proto)
-{
-	return container_of(cg_proto, struct tcp_memcontrol, cg_proto);
-}
-
 static void memcg_tcp_enter_memory_pressure(struct sock *sk)
 {
 	if (sk->sk_cgrp->memory_pressure)
-		*sk->sk_cgrp->memory_pressure = 1;
+		sk->sk_cgrp->memory_pressure = 1;
 }
 EXPORT_SYMBOL(memcg_tcp_enter_memory_pressure);
 
@@ -27,33 +22,24 @@ int tcp_init_cgroup(struct mem_cgroup *memcg, struct cgroup_subsys *ss)
 	 */
 	struct res_counter *res_parent = NULL;
 	struct cg_proto *cg_proto, *parent_cg;
-	struct tcp_memcontrol *tcp;
 	struct mem_cgroup *parent = parent_mem_cgroup(memcg);
 
 	cg_proto = tcp_prot.proto_cgroup(memcg);
 	if (!cg_proto)
 		return 0;
 
-	tcp = tcp_from_cgproto(cg_proto);
-
-	tcp->tcp_prot_mem[0] = sysctl_tcp_mem[0];
-	tcp->tcp_prot_mem[1] = sysctl_tcp_mem[1];
-	tcp->tcp_prot_mem[2] = sysctl_tcp_mem[2];
-	tcp->tcp_memory_pressure = 0;
+	cg_proto->sysctl_mem[0] = sysctl_tcp_mem[0];
+	cg_proto->sysctl_mem[1] = sysctl_tcp_mem[1];
+	cg_proto->sysctl_mem[2] = sysctl_tcp_mem[2];
+	cg_proto->memory_pressure = 0;
+	cg_proto->memcg = memcg;
 
 	parent_cg = tcp_prot.proto_cgroup(parent);
 	if (parent_cg)
-		res_parent = parent_cg->memory_allocated;
-
-	res_counter_init(&tcp->tcp_memory_allocated, res_parent);
-	percpu_counter_init(&tcp->tcp_sockets_allocated, 0);
+		res_parent = &parent_cg->memory_allocated;
 
-	cg_proto->enter_memory_pressure = memcg_tcp_enter_memory_pressure;
-	cg_proto->memory_pressure = &tcp->tcp_memory_pressure;
-	cg_proto->sysctl_mem = tcp->tcp_prot_mem;
-	cg_proto->memory_allocated = &tcp->tcp_memory_allocated;
-	cg_proto->sockets_allocated = &tcp->tcp_sockets_allocated;
-	cg_proto->memcg = memcg;
+	res_counter_init(&cg_proto->memory_allocated, res_parent);
+	percpu_counter_init(&cg_proto->sockets_allocated, 0);
 
 	return 0;
 }
@@ -62,20 +48,17 @@ EXPORT_SYMBOL(tcp_init_cgroup);
 void tcp_destroy_cgroup(struct mem_cgroup *memcg)
 {
 	struct cg_proto *cg_proto;
-	struct tcp_memcontrol *tcp;
 
 	cg_proto = tcp_prot.proto_cgroup(memcg);
 	if (!cg_proto)
 		return;
 
-	tcp = tcp_from_cgproto(cg_proto);
-	percpu_counter_destroy(&tcp->tcp_sockets_allocated);
+	percpu_counter_destroy(&cg_proto->sockets_allocated);
 }
 EXPORT_SYMBOL(tcp_destroy_cgroup);
 
 static int tcp_update_limit(struct mem_cgroup *memcg, u64 val)
 {
-	struct tcp_memcontrol *tcp;
 	struct cg_proto *cg_proto;
 	u64 old_lim;
 	int i;
@@ -88,16 +71,14 @@ static int tcp_update_limit(struct mem_cgroup *memcg, u64 val)
 	if (val > RES_COUNTER_MAX)
 		val = RES_COUNTER_MAX;
 
-	tcp = tcp_from_cgproto(cg_proto);
-
-	old_lim = res_counter_read_u64(&tcp->tcp_memory_allocated, RES_LIMIT);
-	ret = res_counter_set_limit(&tcp->tcp_memory_allocated, val);
+	old_lim = res_counter_read_u64(&cg_proto->memory_allocated, RES_LIMIT);
+	ret = res_counter_set_limit(&cg_proto->memory_allocated, val);
 	if (ret)
 		return ret;
 
 	for (i = 0; i < 3; i++)
-		tcp->tcp_prot_mem[i] = min_t(long, val >> PAGE_SHIFT,
-					     sysctl_tcp_mem[i]);
+		cg_proto->sysctl_mem[i] = min_t(long, val >> PAGE_SHIFT,
+						sysctl_tcp_mem[i]);
 
 	if (val == RES_COUNTER_MAX)
 		clear_bit(MEMCG_SOCK_ACTIVE, &cg_proto->flags);
@@ -154,28 +135,24 @@ static int tcp_cgroup_write(struct cgroup_subsys_state *css, struct cftype *cft,
 
 static u64 tcp_read_stat(struct mem_cgroup *memcg, int type, u64 default_val)
 {
-	struct tcp_memcontrol *tcp;
 	struct cg_proto *cg_proto;
 
 	cg_proto = tcp_prot.proto_cgroup(memcg);
 	if (!cg_proto)
 		return default_val;
 
-	tcp = tcp_from_cgproto(cg_proto);
-	return res_counter_read_u64(&tcp->tcp_memory_allocated, type);
+	return res_counter_read_u64(&cg_proto->memory_allocated, type);
 }
 
 static u64 tcp_read_usage(struct mem_cgroup *memcg)
 {
-	struct tcp_memcontrol *tcp;
 	struct cg_proto *cg_proto;
 
 	cg_proto = tcp_prot.proto_cgroup(memcg);
 	if (!cg_proto)
 		return atomic_long_read(&tcp_memory_allocated) << PAGE_SHIFT;
 
-	tcp = tcp_from_cgproto(cg_proto);
-	return res_counter_read_u64(&tcp->tcp_memory_allocated, RES_USAGE);
+	return res_counter_read_u64(&cg_proto->memory_allocated, RES_USAGE);
 }
 
 static u64 tcp_cgroup_read(struct cgroup_subsys_state *css, struct cftype *cft)
@@ -203,21 +180,19 @@ static u64 tcp_cgroup_read(struct cgroup_subsys_state *css, struct cftype *cft)
 static int tcp_cgroup_reset(struct cgroup_subsys_state *css, unsigned int event)
 {
 	struct mem_cgroup *memcg;
-	struct tcp_memcontrol *tcp;
 	struct cg_proto *cg_proto;
 
 	memcg = mem_cgroup_from_css(css);
 	cg_proto = tcp_prot.proto_cgroup(memcg);
 	if (!cg_proto)
 		return 0;
-	tcp = tcp_from_cgproto(cg_proto);
 
 	switch (event) {
 	case RES_MAX_USAGE:
-		res_counter_reset_max(&tcp->tcp_memory_allocated);
+		res_counter_reset_max(&cg_proto->memory_allocated);
 		break;
 	case RES_FAILCNT:
-		res_counter_reset_failcnt(&tcp->tcp_memory_allocated);
+		res_counter_reset_failcnt(&cg_proto->memory_allocated);
 		break;
 	}
 
-- 
cgit 


From 0a6fa23dcb10eeb21adfd9955f7030f952a8122d Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Sat, 19 Oct 2013 16:27:03 -0700
Subject: ipv4: Use math to point per net sysctls into the appropriate struct
 net.

Simplify maintenance of ipv4_net_table by using math to point the per
net sysctls into the appropriate struct net, instead of manually
reassinging all of the variables into hard coded table slots.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/sysctl_net_ipv4.c | 23 +++++------------------
 1 file changed, 5 insertions(+), 18 deletions(-)

diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 69c6a8dbe09d..3a05e8123235 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -838,28 +838,15 @@ static __net_init int ipv4_sysctl_init_net(struct net *net)
 
 	table = ipv4_net_table;
 	if (!net_eq(net, &init_net)) {
+		int i;
+
 		table = kmemdup(table, sizeof(ipv4_net_table), GFP_KERNEL);
 		if (table == NULL)
 			goto err_alloc;
 
-		table[0].data =
-			&net->ipv4.sysctl_icmp_echo_ignore_all;
-		table[1].data =
-			&net->ipv4.sysctl_icmp_echo_ignore_broadcasts;
-		table[2].data =
-			&net->ipv4.sysctl_icmp_ignore_bogus_error_responses;
-		table[3].data =
-			&net->ipv4.sysctl_icmp_errors_use_inbound_ifaddr;
-		table[4].data =
-			&net->ipv4.sysctl_icmp_ratelimit;
-		table[5].data =
-			&net->ipv4.sysctl_icmp_ratemask;
-		table[6].data =
-			&net->ipv4.sysctl_ping_group_range;
-		table[7].data =
-			&net->ipv4.sysctl_tcp_ecn;
-		table[8].data =
-			&net->ipv4.sysctl_local_ports.range;
+		/* Update the variables to point into the current struct net */
+		for (i = 0; i < ARRAY_SIZE(ipv4_net_table) - 1; i++)
+			table[i].data += (void *)net - (void *)&init_net;
 
 		/* Don't export sysctls to unprivileged users */
 		if (net->user_ns != &init_user_ns)
-- 
cgit 


From fd2d5356d90211f98ea3624263e37c4142b41edd Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Sat, 19 Oct 2013 16:27:35 -0700
Subject: ipv4: Allow unprivileged users to use per net sysctls

Allow unprivileged users to use:
/proc/sys/net/ipv4/icmp_echo_ignore_all
/proc/sys/net/ipv4/icmp_echo_ignore_broadcasts
/proc/sys/net/ipv4/icmp_ignore_bogus_error_response
/proc/sys/net/ipv4/icmp_errors_use_inbound_ifaddr
/proc/sys/net/ipv4/icmp_ratelimit
/proc/sys/net/ipv4/icmp_ratemask
/proc/sys/net/ipv4/ping_group_range
/proc/sys/net/ipv4/tcp_ecn
/proc/sys/net/ipv4/ip_local_ports_range

These are occassionally handy and after a quick review I don't see
any problems with unprivileged users using them.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/sysctl_net_ipv4.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index 3a05e8123235..d5b1390eebbe 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -847,10 +847,6 @@ static __net_init int ipv4_sysctl_init_net(struct net *net)
 		/* Update the variables to point into the current struct net */
 		for (i = 0; i < ARRAY_SIZE(ipv4_net_table) - 1; i++)
 			table[i].data += (void *)net - (void *)&init_net;
-
-		/* Don't export sysctls to unprivileged users */
-		if (net->user_ns != &init_user_ns)
-			table[0].procname = NULL;
 	}
 
 	/*
-- 
cgit 


From 1b66917d6b76db0abe1a1bbf86b2517ba8b91d98 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 20 Oct 2013 07:10:01 +0200
Subject: cgxb4: remove duplicate include in cxgb4.h

Reported by "make includecheck"

Tested that C sources including this file still compile well on x86

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index dfd1e36f5753..ecd2fb3ef695 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -48,7 +48,6 @@
 #include <linux/vmalloc.h>
 #include <asm/io.h>
 #include "cxgb4_uld.h"
-#include "t4_hw.h"
 
 #define FW_VERSION_MAJOR 1
 #define FW_VERSION_MINOR 4
-- 
cgit 


From b62c47d8a5a58b66270e4f9952f4e085a80e0515 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 20 Oct 2013 07:13:56 +0200
Subject: ethernet: moxa: remove duplicate includes

Reported by "make includecheck"

Tested that drivers/net/ethernet/moxa/moxart_ether.c still compiles
well on ARM

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/moxa/moxart_ether.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/moxa/moxart_ether.c b/drivers/net/ethernet/moxa/moxart_ether.c
index ea54d95e5b9f..cbd013379252 100644
--- a/drivers/net/ethernet/moxa/moxart_ether.c
+++ b/drivers/net/ethernet/moxa/moxart_ether.c
@@ -26,7 +26,6 @@
 #include <linux/of_irq.h>
 #include <linux/crc32.h>
 #include <linux/crc32c.h>
-#include <linux/dma-mapping.h>
 
 #include "moxart_ether.h"
 
-- 
cgit 


From e8556df69241eb5554f1dacf6b54acf3224531ba Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Mon, 21 Oct 2013 07:09:49 +0200
Subject: chelsio: remove duplicate defines

This removes multiple duplicate definitions
in drivers/net/ethernet/chelsio/cxgb3/regs.h

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/chelsio/cxgb3/regs.h | 35 -------------------------------
 1 file changed, 35 deletions(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb3/regs.h b/drivers/net/ethernet/chelsio/cxgb3/regs.h
index 6990f6c65221..81029b872bdd 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/regs.h
+++ b/drivers/net/ethernet/chelsio/cxgb3/regs.h
@@ -685,10 +685,6 @@
 #define V_BUSY(x) ((x) << S_BUSY)
 #define F_BUSY    V_BUSY(1U)
 
-#define S_BUSY    31
-#define V_BUSY(x) ((x) << S_BUSY)
-#define F_BUSY    V_BUSY(1U)
-
 #define A_MC7_EXT_MODE1 0x108
 
 #define A_MC7_EXT_MODE2 0x10c
@@ -749,14 +745,6 @@
 
 #define A_MC7_CAL 0x128
 
-#define S_BUSY    31
-#define V_BUSY(x) ((x) << S_BUSY)
-#define F_BUSY    V_BUSY(1U)
-
-#define S_BUSY    31
-#define V_BUSY(x) ((x) << S_BUSY)
-#define F_BUSY    V_BUSY(1U)
-
 #define S_CAL_FAULT    30
 #define V_CAL_FAULT(x) ((x) << S_CAL_FAULT)
 #define F_CAL_FAULT    V_CAL_FAULT(1U)
@@ -815,9 +803,6 @@
 #define V_OP(x) ((x) << S_OP)
 #define F_OP    V_OP(1U)
 
-#define F_OP    V_OP(1U)
-#define A_SF_OP 0x6dc
-
 #define A_MC7_BIST_ADDR_BEG 0x168
 
 #define A_MC7_BIST_ADDR_END 0x16c
@@ -830,8 +815,6 @@
 #define V_CONT(x) ((x) << S_CONT)
 #define F_CONT    V_CONT(1U)
 
-#define F_CONT    V_CONT(1U)
-
 #define A_MC7_INT_ENABLE 0x178
 
 #define S_AE    17
@@ -1017,8 +1000,6 @@
 #define V_NICMODE(x) ((x) << S_NICMODE)
 #define F_NICMODE    V_NICMODE(1U)
 
-#define F_NICMODE    V_NICMODE(1U)
-
 #define S_IPV6ENABLE    15
 #define V_IPV6ENABLE(x) ((x) << S_IPV6ENABLE)
 #define F_IPV6ENABLE    V_IPV6ENABLE(1U)
@@ -1561,28 +1542,16 @@
 
 #define A_ULPRX_STAG_ULIMIT 0x530
 
-#define A_ULPRX_RQ_LLIMIT 0x534
 #define A_ULPRX_RQ_LLIMIT 0x534
 
-#define A_ULPRX_RQ_ULIMIT 0x538
 #define A_ULPRX_RQ_ULIMIT 0x538
 
 #define A_ULPRX_PBL_LLIMIT 0x53c
 
-#define A_ULPRX_PBL_ULIMIT 0x540
 #define A_ULPRX_PBL_ULIMIT 0x540
 
 #define A_ULPRX_TDDP_TAGMASK 0x524
 
-#define A_ULPRX_RQ_LLIMIT 0x534
-#define A_ULPRX_RQ_LLIMIT 0x534
-
-#define A_ULPRX_RQ_ULIMIT 0x538
-#define A_ULPRX_RQ_ULIMIT 0x538
-
-#define A_ULPRX_PBL_ULIMIT 0x540
-#define A_ULPRX_PBL_ULIMIT 0x540
-
 #define A_ULPTX_CONFIG 0x580
 
 #define S_CFG_CQE_SOP_MASK    1
@@ -2053,8 +2022,6 @@
 #define V_TMMODE(x) ((x) << S_TMMODE)
 #define F_TMMODE    V_TMMODE(1U)
 
-#define F_TMMODE    V_TMMODE(1U)
-
 #define A_MC5_DB_ROUTING_TABLE_INDEX 0x70c
 
 #define A_MC5_DB_FILTER_TABLE 0x710
@@ -2454,8 +2421,6 @@
 #define V_TXACTENABLE(x) ((x) << S_TXACTENABLE)
 #define F_TXACTENABLE    V_TXACTENABLE(1U)
 
-#define A_XGM_SERDES_CTRL0 0x8e0
-
 #define S_RESET3    23
 #define V_RESET3(x) ((x) << S_RESET3)
 #define F_RESET3    V_RESET3(1U)
-- 
cgit 


From 212124dd8a9b9b25a689b6a2025d315f0e6afe75 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Mon, 21 Oct 2013 10:12:41 +0200
Subject: atm: firestream: remove duplicate define

This patch removes a duplicate define in drivers/atm/firestream.h

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked-by: Chas Williams <chas@cmf.nrl.navy.mil>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/atm/firestream.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/atm/firestream.h b/drivers/atm/firestream.h
index 49e783e35ee9..364eded31881 100644
--- a/drivers/atm/firestream.h
+++ b/drivers/atm/firestream.h
@@ -420,7 +420,6 @@ struct fs_transmit_config {
 #define RC_FLAGS_BFPS_BFP27 (0xd << 17)
 #define RC_FLAGS_BFPS_BFP47 (0xe << 17)
 
-#define RC_FLAGS_BFPS       (0x1 << 17)
 #define RC_FLAGS_BFPP       (0x1 << 21)
 #define RC_FLAGS_TEVC       (0x1 << 22)
 #define RC_FLAGS_TEP        (0x1 << 23)
-- 
cgit 


From d3e5e0062de5f2c6444455b5708a62a50c93a50c Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sun, 20 Oct 2013 20:47:29 -0700
Subject: ipv6: gso: make ipv6_gso_segment() stackable

In order to support GSO on SIT tunnels, we need to make
inet_gso_segment() stackable.

It should not assume network header starts right after mac
header.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/ip6_offload.c | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c
index 5c2fc1d04196..f9b33d82bb9d 100644
--- a/net/ipv6/ip6_offload.c
+++ b/net/ipv6/ip6_offload.c
@@ -90,6 +90,7 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb,
 	u8 *prevhdr;
 	int offset = 0;
 	bool tunnel;
+	int nhoff;
 
 	if (unlikely(skb_shinfo(skb)->gso_type &
 		     ~(SKB_GSO_UDP |
@@ -103,10 +104,16 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb,
 		       0)))
 		goto out;
 
+	skb_reset_network_header(skb);
+	nhoff = skb_network_header(skb) - skb_mac_header(skb);
 	if (unlikely(!pskb_may_pull(skb, sizeof(*ipv6h))))
 		goto out;
 
-	tunnel = skb->encapsulation;
+	tunnel = SKB_GSO_CB(skb)->encap_level > 0;
+	if (tunnel)
+		features = skb->dev->hw_enc_features & netif_skb_features(skb);
+	SKB_GSO_CB(skb)->encap_level += sizeof(*ipv6h);
+
 	ipv6h = ipv6_hdr(skb);
 	__skb_pull(skb, sizeof(*ipv6h));
 	segs = ERR_PTR(-EPROTONOSUPPORT);
@@ -123,13 +130,17 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb,
 		goto out;
 
 	for (skb = segs; skb; skb = skb->next) {
-		ipv6h = ipv6_hdr(skb);
-		ipv6h->payload_len = htons(skb->len - skb->mac_len -
-					   sizeof(*ipv6h));
+		ipv6h = (struct ipv6hdr *)(skb_mac_header(skb) + nhoff);
+		ipv6h->payload_len = htons(skb->len - nhoff - sizeof(*ipv6h));
+		if (tunnel) {
+			skb_reset_inner_headers(skb);
+			skb->encapsulation = 1;
+		}
+		skb->network_header = (u8 *)ipv6h - skb->head;
+
 		if (!tunnel && proto == IPPROTO_UDP) {
 			unfrag_ip6hlen = ip6_find_1stfragopt(skb, &prevhdr);
-			fptr = (struct frag_hdr *)(skb_network_header(skb) +
-				unfrag_ip6hlen);
+			fptr = (struct frag_hdr *)((u8 *)ipv6h + unfrag_ip6hlen);
 			fptr->frag_off = htons(offset);
 			if (skb->next != NULL)
 				fptr->frag_off |= htons(IP6_MF);
-- 
cgit 


From 61c1db7fae21ed33c614356a43bf6580c5e53118 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sun, 20 Oct 2013 20:47:30 -0700
Subject: ipv6: sit: add GSO/TSO support

Now ipv6_gso_segment() is stackable, its relatively easy to
implement GSO/TSO support for SIT tunnels

Performance results, when segmentation is done after tunnel
device (as no NIC is yet enabled for TSO SIT support) :

Before patch :

lpq84:~# ./netperf -H 2002:af6:1153:: -Cc
MIGRATED TCP STREAM TEST from ::0 (::) port 0 AF_INET6 to 2002:af6:1153:: () port 0 AF_INET6
Recv   Send    Send                          Utilization       Service Demand
Socket Socket  Message  Elapsed              Send     Recv     Send    Recv
Size   Size    Size     Time     Throughput  local    remote   local   remote
bytes  bytes   bytes    secs.    10^6bits/s  % S      % S      us/KB   us/KB

 87380  16384  16384    10.00      3168.31   4.81     4.64     2.988   2.877

After patch :

lpq84:~# ./netperf -H 2002:af6:1153:: -Cc
MIGRATED TCP STREAM TEST from ::0 (::) port 0 AF_INET6 to 2002:af6:1153:: () port 0 AF_INET6
Recv   Send    Send                          Utilization       Service Demand
Socket Socket  Message  Elapsed              Send     Recv     Send    Recv
Size   Size    Size     Time     Throughput  local    remote   local   remote
bytes  bytes   bytes    secs.    10^6bits/s  % S      % S      us/KB   us/KB

 87380  16384  16384    10.00      5525.00   7.76     5.17     2.763   1.840

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdev_features.h |  2 ++
 include/linux/skbuff.h          |  6 ++++--
 net/core/ethtool.c              |  1 +
 net/ipv4/af_inet.c              |  1 +
 net/ipv4/tcp_offload.c          |  1 +
 net/ipv6/ip6_offload.c          | 11 +++++++++++
 net/ipv6/sit.c                  | 28 +++++++++++++++++++---------
 net/ipv6/udp_offload.c          |  1 +
 8 files changed, 40 insertions(+), 11 deletions(-)

diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h
index 8dad68cede1c..b05a4b501ab5 100644
--- a/include/linux/netdev_features.h
+++ b/include/linux/netdev_features.h
@@ -43,6 +43,7 @@ enum {
 	NETIF_F_FSO_BIT,		/* ... FCoE segmentation */
 	NETIF_F_GSO_GRE_BIT,		/* ... GRE with TSO */
 	NETIF_F_GSO_IPIP_BIT,		/* ... IPIP tunnel with TSO */
+	NETIF_F_GSO_SIT_BIT,		/* ... SIT tunnel with TSO */
 	NETIF_F_GSO_UDP_TUNNEL_BIT,	/* ... UDP TUNNEL with TSO */
 	NETIF_F_GSO_MPLS_BIT,		/* ... MPLS segmentation */
 	/**/NETIF_F_GSO_LAST =		/* last bit, see GSO_MASK */
@@ -109,6 +110,7 @@ enum {
 #define NETIF_F_RXALL		__NETIF_F(RXALL)
 #define NETIF_F_GSO_GRE		__NETIF_F(GSO_GRE)
 #define NETIF_F_GSO_IPIP	__NETIF_F(GSO_IPIP)
+#define NETIF_F_GSO_SIT		__NETIF_F(GSO_SIT)
 #define NETIF_F_GSO_UDP_TUNNEL	__NETIF_F(GSO_UDP_TUNNEL)
 #define NETIF_F_GSO_MPLS	__NETIF_F(GSO_MPLS)
 #define NETIF_F_HW_VLAN_STAG_FILTER __NETIF_F(HW_VLAN_STAG_FILTER)
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 60729134d253..2c154976394b 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -320,9 +320,11 @@ enum {
 
 	SKB_GSO_IPIP = 1 << 7,
 
-	SKB_GSO_UDP_TUNNEL = 1 << 8,
+	SKB_GSO_SIT = 1 << 8,
 
-	SKB_GSO_MPLS = 1 << 9,
+	SKB_GSO_UDP_TUNNEL = 1 << 9,
+
+	SKB_GSO_MPLS = 1 << 10,
 };
 
 #if BITS_PER_LONG > 32
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 8cab7744790e..862989898f61 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -82,6 +82,7 @@ static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN]
 	[NETIF_F_FSO_BIT] =              "tx-fcoe-segmentation",
 	[NETIF_F_GSO_GRE_BIT] =		 "tx-gre-segmentation",
 	[NETIF_F_GSO_IPIP_BIT] =	 "tx-ipip-segmentation",
+	[NETIF_F_GSO_SIT_BIT] =		 "tx-sit-segmentation",
 	[NETIF_F_GSO_UDP_TUNNEL_BIT] =	 "tx-udp_tnl-segmentation",
 	[NETIF_F_GSO_MPLS_BIT] =	 "tx-mpls-segmentation",
 
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 24a53fc275b0..f4a159e705c0 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1265,6 +1265,7 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb,
 		       SKB_GSO_TCP_ECN |
 		       SKB_GSO_GRE |
 		       SKB_GSO_IPIP |
+		       SKB_GSO_SIT |
 		       SKB_GSO_TCPV6 |
 		       SKB_GSO_UDP_TUNNEL |
 		       SKB_GSO_MPLS |
diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c
index dfc96b00673e..a7a5583eab04 100644
--- a/net/ipv4/tcp_offload.c
+++ b/net/ipv4/tcp_offload.c
@@ -57,6 +57,7 @@ struct sk_buff *tcp_gso_segment(struct sk_buff *skb,
 			       SKB_GSO_TCPV6 |
 			       SKB_GSO_GRE |
 			       SKB_GSO_IPIP |
+			       SKB_GSO_SIT |
 			       SKB_GSO_MPLS |
 			       SKB_GSO_UDP_TUNNEL |
 			       0) ||
diff --git a/net/ipv6/ip6_offload.c b/net/ipv6/ip6_offload.c
index f9b33d82bb9d..4b851692b1f6 100644
--- a/net/ipv6/ip6_offload.c
+++ b/net/ipv6/ip6_offload.c
@@ -98,6 +98,7 @@ static struct sk_buff *ipv6_gso_segment(struct sk_buff *skb,
 		       SKB_GSO_TCP_ECN |
 		       SKB_GSO_GRE |
 		       SKB_GSO_IPIP |
+		       SKB_GSO_SIT |
 		       SKB_GSO_UDP_TUNNEL |
 		       SKB_GSO_MPLS |
 		       SKB_GSO_TCPV6 |
@@ -276,6 +277,13 @@ static struct packet_offload ipv6_packet_offload __read_mostly = {
 	},
 };
 
+static const struct net_offload sit_offload = {
+	.callbacks = {
+		.gso_send_check = ipv6_gso_send_check,
+		.gso_segment	= ipv6_gso_segment,
+	},
+};
+
 static int __init ipv6_offload_init(void)
 {
 
@@ -287,6 +295,9 @@ static int __init ipv6_offload_init(void)
 		pr_crit("%s: Cannot add EXTHDRS protocol offload\n", __func__);
 
 	dev_add_offload(&ipv6_packet_offload);
+
+	inet_add_offload(&sit_offload, IPPROTO_IPV6);
+
 	return 0;
 }
 
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 19269453a8ea..3a9038dd818d 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -933,10 +933,9 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
 		ttl = iph6->hop_limit;
 	tos = INET_ECN_encapsulate(tos, ipv6_get_dsfield(iph6));
 
-	if (likely(!skb->encapsulation)) {
-		skb_reset_inner_headers(skb);
-		skb->encapsulation = 1;
-	}
+	skb = iptunnel_handle_offloads(skb, false, SKB_GSO_SIT);
+	if (IS_ERR(skb))
+		goto out;
 
 	err = iptunnel_xmit(rt, skb, fl4.saddr, fl4.daddr, IPPROTO_IPV6, tos,
 			    ttl, df, !net_eq(tunnel->net, dev_net(dev)));
@@ -946,8 +945,9 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
 tx_error_icmp:
 	dst_link_failure(skb);
 tx_error:
-	dev->stats.tx_errors++;
 	dev_kfree_skb(skb);
+out:
+	dev->stats.tx_errors++;
 	return NETDEV_TX_OK;
 }
 
@@ -956,13 +956,15 @@ static netdev_tx_t ipip_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	struct ip_tunnel *tunnel = netdev_priv(dev);
 	const struct iphdr  *tiph = &tunnel->parms.iph;
 
-	if (likely(!skb->encapsulation)) {
-		skb_reset_inner_headers(skb);
-		skb->encapsulation = 1;
-	}
+	skb = iptunnel_handle_offloads(skb, false, SKB_GSO_IPIP);
+	if (IS_ERR(skb))
+		goto out;
 
 	ip_tunnel_xmit(skb, dev, tiph, IPPROTO_IPIP);
 	return NETDEV_TX_OK;
+out:
+	dev->stats.tx_errors++;
+	return NETDEV_TX_OK;
 }
 
 static netdev_tx_t sit_tunnel_xmit(struct sk_buff *skb,
@@ -1292,6 +1294,12 @@ static void ipip6_dev_free(struct net_device *dev)
 	free_netdev(dev);
 }
 
+#define SIT_FEATURES (NETIF_F_SG	   | \
+		      NETIF_F_FRAGLIST	   | \
+		      NETIF_F_HIGHDMA	   | \
+		      NETIF_F_GSO_SOFTWARE | \
+		      NETIF_F_HW_CSUM)
+
 static void ipip6_tunnel_setup(struct net_device *dev)
 {
 	dev->netdev_ops		= &ipip6_netdev_ops;
@@ -1305,6 +1313,8 @@ static void ipip6_tunnel_setup(struct net_device *dev)
 	dev->iflink		= 0;
 	dev->addr_len		= 4;
 	dev->features		|= NETIF_F_LLTX;
+	dev->features		|= SIT_FEATURES;
+	dev->hw_features	|= SIT_FEATURES;
 }
 
 static int ipip6_tunnel_init(struct net_device *dev)
diff --git a/net/ipv6/udp_offload.c b/net/ipv6/udp_offload.c
index f63780ff3732..08e23b0bf302 100644
--- a/net/ipv6/udp_offload.c
+++ b/net/ipv6/udp_offload.c
@@ -65,6 +65,7 @@ static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb,
 				      SKB_GSO_UDP_TUNNEL |
 				      SKB_GSO_GRE |
 				      SKB_GSO_IPIP |
+				      SKB_GSO_SIT |
 				      SKB_GSO_MPLS) ||
 			     !(type & (SKB_GSO_UDP))))
 			goto out;
-- 
cgit 


From 2e3bd6a40865a7da486eaa36bb52a781bd70f5a1 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sun, 20 Oct 2013 20:47:31 -0700
Subject: bnx2x: add TSO support for SIT tunnels

bnx2x driver already handles TSO for GRE and IPIP, current code
is the same for SIT.

Performance results : (Note we are now limited by receiver,
as it does not support GRO for SIT yet)

Before patch :

lpq84:~# ./netperf -H 2002:af6:1153:: -Cc
MIGRATED TCP STREAM TEST from ::0 (::) port 0 AF_INET6 to 2002:af6:1153:: () port 0 AF_INET6
Recv   Send    Send                          Utilization       Service Demand
Socket Socket  Message  Elapsed              Send     Recv     Send    Recv
Size   Size    Size     Time     Throughput  local    remote   local   remote
bytes  bytes   bytes    secs.    10^6bits/s  % S      % S      us/KB   us/KB

 87380  16384  16384    10.00      5525.00   7.76     5.17     2.763   1.840

lpq84:~# ./netperf -H 2002:af6:1153:: -Cc
MIGRATED TCP STREAM TEST from ::0 (::) port 0 AF_INET6 to 2002:af6:1153:: () port 0 AF_INET6
Recv   Send    Send                          Utilization       Service Demand
Socket Socket  Message  Elapsed              Send     Recv     Send    Recv
Size   Size    Size     Time     Throughput  local    remote   local   remote
bytes  bytes   bytes    secs.    10^6bits/s  % S      % S      us/KB   us/KB

 87380  16384  16384    10.00      6006.97   1.86     5.48     0.608   1.795

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 6e5b35ff7af4..04b9177f46bf 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -12261,11 +12261,12 @@ static int bnx2x_init_dev(struct bnx2x *bp, struct pci_dev *pdev,
 		NETIF_F_RXHASH | NETIF_F_HW_VLAN_CTAG_TX;
 	if (!CHIP_IS_E1x(bp)) {
 		dev->hw_features |= NETIF_F_GSO_GRE | NETIF_F_GSO_UDP_TUNNEL |
-				    NETIF_F_GSO_IPIP;
+				    NETIF_F_GSO_IPIP | NETIF_F_GSO_SIT;
 		dev->hw_enc_features =
 			NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_SG |
 			NETIF_F_TSO | NETIF_F_TSO_ECN | NETIF_F_TSO6 |
 			NETIF_F_GSO_IPIP |
+			NETIF_F_GSO_SIT |
 			NETIF_F_GSO_GRE | NETIF_F_GSO_UDP_TUNNEL;
 	}
 
-- 
cgit 


From aa13876d90e09d54d6b801bf1d264e5f83a6915f Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 22 Oct 2013 13:14:45 +0900
Subject: net: pasemi: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/pasemi/pasemi_mac.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/pasemi/pasemi_mac.c b/drivers/net/ethernet/pasemi/pasemi_mac.c
index 5b65356e7568..dbaa49e58b0c 100644
--- a/drivers/net/ethernet/pasemi/pasemi_mac.c
+++ b/drivers/net/ethernet/pasemi/pasemi_mac.c
@@ -1870,7 +1870,6 @@ static void pasemi_mac_remove(struct pci_dev *pdev)
 	pasemi_dma_free_chan(&mac->tx->chan);
 	pasemi_dma_free_chan(&mac->rx->chan);
 
-	pci_set_drvdata(pdev, NULL);
 	free_netdev(netdev);
 }
 
-- 
cgit 


From b23eb795267fb32113c204870ecfadba2a7ecf7c Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 22 Oct 2013 13:15:09 +0900
Subject: net: netxen: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
index 5ec21c50373c..3bec8cfebf99 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
@@ -1630,7 +1630,6 @@ err_out_free_res:
 	pci_release_regions(pdev);
 
 err_out_disable_pdev:
-	pci_set_drvdata(pdev, NULL);
 	pci_disable_device(pdev);
 	return err;
 }
@@ -1689,7 +1688,6 @@ static void netxen_nic_remove(struct pci_dev *pdev)
 
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 
 	free_netdev(netdev);
 }
-- 
cgit 


From f9c4cd97b600c0e404e98cec7326e15c2e394480 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 22 Oct 2013 13:15:36 +0900
Subject: net: qlge: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/qlge/qlge_main.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_main.c b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
index 64f94098bc02..a245dc18d769 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge_main.c
+++ b/drivers/net/ethernet/qlogic/qlge/qlge_main.c
@@ -4577,7 +4577,6 @@ static void ql_release_all(struct pci_dev *pdev)
 		iounmap(qdev->doorbell_area);
 	vfree(qdev->mpi_coredump);
 	pci_release_regions(pdev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 static int ql_init_device(struct pci_dev *pdev, struct net_device *ndev,
-- 
cgit 


From 4e532ee45d4ad1c53b02343fc97fdfefbfe61342 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 22 Oct 2013 13:16:08 +0900
Subject: net: qlcnic: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 027483292932..24e6b1123d86 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -2406,7 +2406,6 @@ err_out_free_res:
 	pci_release_regions(pdev);
 
 err_out_disable_pdev:
-	pci_set_drvdata(pdev, NULL);
 	pci_disable_device(pdev);
 	return err;
 
@@ -2482,7 +2481,6 @@ static void qlcnic_remove(struct pci_dev *pdev)
 	pci_disable_pcie_error_reporting(pdev);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 
 	if (adapter->qlcnic_wq) {
 		destroy_workqueue(adapter->qlcnic_wq);
-- 
cgit 


From 901ea1a939a69e8aab99a8e685ad5a815be8a342 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 22 Oct 2013 13:16:37 +0900
Subject: net: qla3xxx: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/qla3xxx.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c b/drivers/net/ethernet/qlogic/qla3xxx.c
index 91a8fcd6c246..0758b9435358 100644
--- a/drivers/net/ethernet/qlogic/qla3xxx.c
+++ b/drivers/net/ethernet/qlogic/qla3xxx.c
@@ -3916,7 +3916,6 @@ err_out_free_regions:
 	pci_release_regions(pdev);
 err_out_disable_pdev:
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 err_out:
 	return err;
 }
@@ -3939,7 +3938,6 @@ static void ql3xxx_remove(struct pci_dev *pdev)
 
 	iounmap(qdev->mem_map_registers);
 	pci_release_regions(pdev);
-	pci_set_drvdata(pdev, NULL);
 	free_netdev(ndev);
 }
 
-- 
cgit 


From 726a2fbe7b02ef24a4aeaef7df905148fa03ba71 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 22 Oct 2013 13:17:11 +0900
Subject: net: r6040: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/rdc/r6040.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/rdc/r6040.c b/drivers/net/ethernet/rdc/r6040.c
index e9dc84943cfc..1e49ec5b2232 100644
--- a/drivers/net/ethernet/rdc/r6040.c
+++ b/drivers/net/ethernet/rdc/r6040.c
@@ -1231,7 +1231,6 @@ err_out_mdio:
 	mdiobus_free(lp->mii_bus);
 err_out_unmap:
 	netif_napi_del(&lp->napi);
-	pci_set_drvdata(pdev, NULL);
 	pci_iounmap(pdev, ioaddr);
 err_out_free_res:
 	pci_release_regions(pdev);
@@ -1257,7 +1256,6 @@ static void r6040_remove_one(struct pci_dev *pdev)
 	pci_release_regions(pdev);
 	free_netdev(dev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 
-- 
cgit 


From ca30ab2cefea279d2fac64a356e0150f6d93ecbb Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 22 Oct 2013 13:17:27 +0900
Subject: net: 8139cp: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/realtek/8139cp.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/realtek/8139cp.c b/drivers/net/ethernet/realtek/8139cp.c
index d2e591955bdd..f2a2128165dd 100644
--- a/drivers/net/ethernet/realtek/8139cp.c
+++ b/drivers/net/ethernet/realtek/8139cp.c
@@ -2052,7 +2052,6 @@ static void cp_remove_one (struct pci_dev *pdev)
 	pci_release_regions(pdev);
 	pci_clear_mwi(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 	free_netdev(dev);
 }
 
-- 
cgit 


From 64caa387516cba2eb382bd3f3bb9a8b918cb0d40 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 22 Oct 2013 13:17:58 +0900
Subject: net: 8139too: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/realtek/8139too.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/realtek/8139too.c b/drivers/net/ethernet/realtek/8139too.c
index 3ccedeb8aba0..50a92104dd0a 100644
--- a/drivers/net/ethernet/realtek/8139too.c
+++ b/drivers/net/ethernet/realtek/8139too.c
@@ -727,7 +727,6 @@ static void __rtl8139_cleanup_dev (struct net_device *dev)
 	pci_release_regions (pdev);
 
 	free_netdev(dev);
-	pci_set_drvdata (pdev, NULL);
 }
 
 
-- 
cgit 


From 0f423ffe9422667bb03ae853a11000038efb2362 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 22 Oct 2013 13:18:25 +0900
Subject: net: r8169: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/realtek/r8169.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 3397cee89777..799387570766 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -6811,7 +6811,6 @@ static void rtl_remove_one(struct pci_dev *pdev)
 
 	rtl_disable_msi(pdev, tp);
 	rtl8169_release_board(pdev, dev, tp->mmio_addr);
-	pci_set_drvdata(pdev, NULL);
 }
 
 static const struct net_device_ops rtl_netdev_ops = {
-- 
cgit 


From 7c015aea4fa6611c97994812c022cf6ebff9f0c7 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 22 Oct 2013 13:18:57 +0900
Subject: net: sis190: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/sis/sis190.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/sis/sis190.c b/drivers/net/ethernet/sis/sis190.c
index ee18e6f7b4fe..acbbe48a519c 100644
--- a/drivers/net/ethernet/sis/sis190.c
+++ b/drivers/net/ethernet/sis/sis190.c
@@ -1921,7 +1921,6 @@ static void sis190_remove_one(struct pci_dev *pdev)
 	cancel_work_sync(&tp->phy_task);
 	unregister_netdev(dev);
 	sis190_release_board(pdev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 static struct pci_driver sis190_pci_driver = {
-- 
cgit 


From be2f54badfa9ca4af3ef4161fff3ad7fff8e4d65 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 22 Oct 2013 13:19:26 +0900
Subject: net: epic100: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/smsc/epic100.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/smsc/epic100.c b/drivers/net/ethernet/smsc/epic100.c
index 03b256af7ed5..8c5c24a16f8a 100644
--- a/drivers/net/ethernet/smsc/epic100.c
+++ b/drivers/net/ethernet/smsc/epic100.c
@@ -1535,7 +1535,6 @@ static void epic_remove_one(struct pci_dev *pdev)
 	pci_release_regions(pdev);
 	free_netdev(dev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 	/* pci_power_off(pdev, -1); */
 }
 
-- 
cgit 


From 215081f35320658e2a6d4d629d8aa5d58702773a Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 22 Oct 2013 13:19:53 +0900
Subject: net: smsc9420: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/smsc/smsc9420.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/smsc/smsc9420.c b/drivers/net/ethernet/smsc/smsc9420.c
index 5f9e79f7f2df..e55e3365a306 100644
--- a/drivers/net/ethernet/smsc/smsc9420.c
+++ b/drivers/net/ethernet/smsc/smsc9420.c
@@ -1707,8 +1707,6 @@ static void smsc9420_remove(struct pci_dev *pdev)
 	if (!dev)
 		return;
 
-	pci_set_drvdata(pdev, NULL);
-
 	pd = netdev_priv(dev);
 	unregister_netdev(dev);
 
-- 
cgit 


From 7f8cbb23f598a07f9de7ca66ab86d772f08876b3 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 22 Oct 2013 13:20:25 +0900
Subject: net: stmmac: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
index 023b7c29cb2f..644d80ece067 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_pci.c
@@ -138,7 +138,6 @@ static void stmmac_pci_remove(struct pci_dev *pdev)
 
 	stmmac_dvr_remove(ndev);
 
-	pci_set_drvdata(pdev, NULL);
 	pci_iounmap(pdev, priv->ioaddr);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-- 
cgit 


From 5d41bf328f6b13de1218c8741cb966162a82608c Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 22 Oct 2013 13:20:59 +0900
Subject: net: sunhme: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/sun/sunhme.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/sun/sunhme.c b/drivers/net/ethernet/sun/sunhme.c
index 99043b74bf2b..0dbf46f08ed5 100644
--- a/drivers/net/ethernet/sun/sunhme.c
+++ b/drivers/net/ethernet/sun/sunhme.c
@@ -3170,8 +3170,6 @@ static void happy_meal_pci_remove(struct pci_dev *pdev)
 	pci_release_regions(hp->happy_dev);
 
 	free_netdev(net_dev);
-
-	pci_set_drvdata(pdev, NULL);
 }
 
 static DEFINE_PCI_DEVICE_TABLE(happymeal_pci_ids) = {
-- 
cgit 


From 877a22cdce206370534f58be2f57b9dcc7d476ae Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 22 Oct 2013 13:21:26 +0900
Subject: net: cassini: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/sun/cassini.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/sun/cassini.c b/drivers/net/ethernet/sun/cassini.c
index a72ecc42885d..b4d50d74ba18 100644
--- a/drivers/net/ethernet/sun/cassini.c
+++ b/drivers/net/ethernet/sun/cassini.c
@@ -5168,7 +5168,6 @@ err_out_free_netdev:
 
 err_out_disable_pdev:
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 	return -ENODEV;
 }
 
@@ -5206,7 +5205,6 @@ static void cas_remove_one(struct pci_dev *pdev)
 	free_netdev(dev);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 #ifdef CONFIG_PM
-- 
cgit 


From 1eb850c74fa123c02cf8a3c6d6d2a0179491134e Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 22 Oct 2013 11:59:02 +0900
Subject: net: cxgb4vf: use DEFINE_PCI_DEVICE_TABLE

This macro is used to create a struct pci_device_id array.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
index 43bb0123d456..5f90ec5f7519 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
@@ -2905,7 +2905,7 @@ static void cxgb4vf_pci_shutdown(struct pci_dev *pdev)
 #define CH_DEVICE(devid, idx) \
 	{ PCI_VENDOR_ID_CHELSIO, devid, PCI_ANY_ID, PCI_ANY_ID, 0, 0, idx }
 
-static struct pci_device_id cxgb4vf_pci_tbl[] = {
+static DEFINE_PCI_DEVICE_TABLE(cxgb4vf_pci_tbl) = {
 	CH_DEVICE(0xb000, 0),	/* PE10K FPGA */
 	CH_DEVICE(0x4800, 0),	/* T440-dbg */
 	CH_DEVICE(0x4801, 0),	/* T420-cr */
-- 
cgit 


From 8ab6a1f2e493e2855e188ae9b04d3ee9720fa74f Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 22 Oct 2013 12:00:30 +0900
Subject: net: tulip: use DEFINE_PCI_DEVICE_TABLE

This macro is used to create a struct pci_device_id array.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Grant Grundler <grundler@parisc-linux.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/dec/tulip/de4x5.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
index 263b92c00cbf..c05b66dfcc30 100644
--- a/drivers/net/ethernet/dec/tulip/de4x5.c
+++ b/drivers/net/ethernet/dec/tulip/de4x5.c
@@ -2328,7 +2328,7 @@ static void de4x5_pci_remove(struct pci_dev *pdev)
 	pci_disable_device (pdev);
 }
 
-static struct pci_device_id de4x5_pci_tbl[] = {
+static DEFINE_PCI_DEVICE_TABLE(de4x5_pci_tbl) = {
         { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP,
           PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
         { PCI_VENDOR_ID_DEC, PCI_DEVICE_ID_DEC_TULIP_PLUS,
-- 
cgit 


From 1a0176da63438f3643a65adb370abf11760ffba9 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 22 Oct 2013 12:01:47 +0900
Subject: net: ksz884x: use DEFINE_PCI_DEVICE_TABLE

This macro is used to create a struct pci_device_id array.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/micrel/ksz884x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/micrel/ksz884x.c b/drivers/net/ethernet/micrel/ksz884x.c
index 6462dc5191ef..ddd252a3da9c 100644
--- a/drivers/net/ethernet/micrel/ksz884x.c
+++ b/drivers/net/ethernet/micrel/ksz884x.c
@@ -7225,7 +7225,7 @@ static int pcidev_suspend(struct pci_dev *pdev, pm_message_t state)
 
 static char pcidev_name[] = "ksz884xp";
 
-static struct pci_device_id pcidev_table[] = {
+static DEFINE_PCI_DEVICE_TABLE(pcidev_table) = {
 	{ PCI_VENDOR_ID_MICREL_KS, 0x8841,
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 	{ PCI_VENDOR_ID_MICREL_KS, 0x8842,
-- 
cgit 


From 1dea1fd09246ada581a99d0669108eea94b7bfee Mon Sep 17 00:00:00 2001
From: Huayi Li <huayi.li@csr.com>
Date: Wed, 9 Oct 2013 10:33:02 +0800
Subject: pwm_backlight: avoid short blank screen while doing hibernation

Use SIMPLE_DEV_PM_OPS macro will initialize the member "freeze"
and "thaw" of pwm_backlight_pm_ops as below,
	.freeze = suspend_fn,
	.thaw = resume_fn,
then during the process of making hibernation snapshot, screen
will be blank at the moment of freezing, and then light at the
moment of thawing.
this is not the right user experience for suspending to disk.

so this patch drops freeze and thaw callback, make the LCD is
always lighting before the final shutdown.

Signed-off-by: Huayi Li <huayi.li@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---
 drivers/video/backlight/pwm_bl.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index f77a7b0ca5e6..299533491a95 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -387,8 +387,14 @@ static int pwm_backlight_resume(struct device *dev)
 }
 #endif
 
-static SIMPLE_DEV_PM_OPS(pwm_backlight_pm_ops, pwm_backlight_suspend,
-			 pwm_backlight_resume);
+static const struct dev_pm_ops pwm_backlight_pm_ops = {
+#ifdef CONFIG_PM_SLEEP
+	.suspend = pwm_backlight_suspend,
+	.resume = pwm_backlight_resume,
+	.poweroff = pwm_backlight_suspend,
+	.restore = pwm_backlight_resume,
+#endif
+};
 
 static struct platform_driver pwm_backlight_driver = {
 	.driver		= {
-- 
cgit 


From 73d4e2b82b4bb1571b1a7f97012c0db8a0faef42 Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Tue, 22 Oct 2013 09:37:05 +0200
Subject: pwm-backlight: Remove unused variable

I forgot to remove this during earlier cleanup patches and only checked
various builds for errors, not warnings.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---
 drivers/video/backlight/pwm_bl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index 299533491a95..368232af78d2 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -45,7 +45,7 @@ struct pwm_bl_data {
 
 static void pwm_backlight_power_on(struct pwm_bl_data *pb, int brightness)
 {
-	int duty_cycle, err;
+	int err;
 
 	if (pb->enabled)
 		return;
-- 
cgit 


From b416c144f46af1a30ddfa4e4319a8f077381ad63 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Mon, 21 Oct 2013 13:14:53 +0100
Subject: netfilter: x_tables: fix ordering of jumpstack allocation and table
 update

During kernel stability testing on an SMP ARMv7 system, Yalin Wang
reported the following panic from the netfilter code:

  1fe0: 0000001c 5e2d3b10 4007e779 4009e110 60000010 00000032 ff565656 ff545454
  [<c06c48dc>] (ipt_do_table+0x448/0x584) from [<c0655ef0>] (nf_iterate+0x48/0x7c)
  [<c0655ef0>] (nf_iterate+0x48/0x7c) from [<c0655f7c>] (nf_hook_slow+0x58/0x104)
  [<c0655f7c>] (nf_hook_slow+0x58/0x104) from [<c0683bbc>] (ip_local_deliver+0x88/0xa8)
  [<c0683bbc>] (ip_local_deliver+0x88/0xa8) from [<c0683718>] (ip_rcv_finish+0x418/0x43c)
  [<c0683718>] (ip_rcv_finish+0x418/0x43c) from [<c062b1c4>] (__netif_receive_skb+0x4cc/0x598)
  [<c062b1c4>] (__netif_receive_skb+0x4cc/0x598) from [<c062b314>] (process_backlog+0x84/0x158)
  [<c062b314>] (process_backlog+0x84/0x158) from [<c062de84>] (net_rx_action+0x70/0x1dc)
  [<c062de84>] (net_rx_action+0x70/0x1dc) from [<c0088230>] (__do_softirq+0x11c/0x27c)
  [<c0088230>] (__do_softirq+0x11c/0x27c) from [<c008857c>] (do_softirq+0x44/0x50)
  [<c008857c>] (do_softirq+0x44/0x50) from [<c0088614>] (local_bh_enable_ip+0x8c/0xd0)
  [<c0088614>] (local_bh_enable_ip+0x8c/0xd0) from [<c06b0330>] (inet_stream_connect+0x164/0x298)
  [<c06b0330>] (inet_stream_connect+0x164/0x298) from [<c061d68c>] (sys_connect+0x88/0xc8)
  [<c061d68c>] (sys_connect+0x88/0xc8) from [<c000e340>] (ret_fast_syscall+0x0/0x30)
  Code: 2a000021 e59d2028 e59de01c e59f011c (e7824103)
  ---[ end trace da227214a82491bd ]---
  Kernel panic - not syncing: Fatal exception in interrupt

This comes about because CPU1 is executing xt_replace_table in response
to a setsockopt syscall, resulting in:

	ret = xt_jumpstack_alloc(newinfo);
		--> newinfo->jumpstack = kzalloc(size, GFP_KERNEL);

	[...]

	table->private = newinfo;
	newinfo->initial_entries = private->initial_entries;

Meanwhile, CPU0 is handling the network receive path and ends up in
ipt_do_table, resulting in:

	private = table->private;

	[...]

	jumpstack  = (struct ipt_entry **)private->jumpstack[cpu];

On weakly ordered memory architectures, the writes to table->private
and newinfo->jumpstack from CPU1 can be observed out of order by CPU0.
Furthermore, on architectures which don't respect ordering of address
dependencies (i.e. Alpha), the reads from CPU0 can also be re-ordered.

This patch adds an smp_wmb() before the assignment to table->private
(which is essentially publishing newinfo) to ensure that all writes to
newinfo will be observed before plugging it into the table structure.
A dependent-read barrier is also added on the consumer sides, to ensure
the same ordering requirements are also respected there.

Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reported-by: Wang, Yalin <Yalin.Wang@sonymobile.com>
Tested-by: Wang, Yalin <Yalin.Wang@sonymobile.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/ipv4/netfilter/arp_tables.c | 5 +++++
 net/ipv4/netfilter/ip_tables.c  | 5 +++++
 net/ipv6/netfilter/ip6_tables.c | 5 +++++
 net/netfilter/x_tables.c        | 7 ++++++-
 4 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index 85a4f21aac1a..59da7cde0724 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/net/ipv4/netfilter/arp_tables.c
@@ -271,6 +271,11 @@ unsigned int arpt_do_table(struct sk_buff *skb,
 	local_bh_disable();
 	addend = xt_write_recseq_begin();
 	private = table->private;
+	/*
+	 * Ensure we load private-> members after we've fetched the base
+	 * pointer.
+	 */
+	smp_read_barrier_depends();
 	table_base = private->entries[smp_processor_id()];
 
 	e = get_entry(table_base, private->hook_entry[hook]);
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index d23118d95ff9..718dfbd30cbe 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -327,6 +327,11 @@ ipt_do_table(struct sk_buff *skb,
 	addend = xt_write_recseq_begin();
 	private = table->private;
 	cpu        = smp_processor_id();
+	/*
+	 * Ensure we load private-> members after we've fetched the base
+	 * pointer.
+	 */
+	smp_read_barrier_depends();
 	table_base = private->entries[cpu];
 	jumpstack  = (struct ipt_entry **)private->jumpstack[cpu];
 	stackptr   = per_cpu_ptr(private->stackptr, cpu);
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 44400c216dc6..710238f58aa9 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -349,6 +349,11 @@ ip6t_do_table(struct sk_buff *skb,
 	local_bh_disable();
 	addend = xt_write_recseq_begin();
 	private = table->private;
+	/*
+	 * Ensure we load private-> members after we've fetched the base
+	 * pointer.
+	 */
+	smp_read_barrier_depends();
 	cpu        = smp_processor_id();
 	table_base = private->entries[cpu];
 	jumpstack  = (struct ip6t_entry **)private->jumpstack[cpu];
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
index 8b03028cca69..227aa11e8409 100644
--- a/net/netfilter/x_tables.c
+++ b/net/netfilter/x_tables.c
@@ -845,8 +845,13 @@ xt_replace_table(struct xt_table *table,
 		return NULL;
 	}
 
-	table->private = newinfo;
 	newinfo->initial_entries = private->initial_entries;
+	/*
+	 * Ensure contents of newinfo are visible before assigning to
+	 * private.
+	 */
+	smp_wmb();
+	table->private = newinfo;
 
 	/*
 	 * Even though table entries have now been swapped, other CPU's
-- 
cgit 


From 93302880d8a3e5dc6b7da3f9825beb839152c940 Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Fri, 18 Oct 2013 11:41:55 +0200
Subject: netfilter: ipset: Use netlink callback dump args only

Instead of cb->data, use callback dump args only and introduce symbolic
names instead of plain numbers at accessing the argument members.

Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/linux/netfilter/ipset/ip_set.h  | 10 +++++
 net/netfilter/ipset/ip_set_bitmap_gen.h | 11 +++---
 net/netfilter/ipset/ip_set_core.c       | 70 ++++++++++++++++-----------------
 net/netfilter/ipset/ip_set_hash_gen.h   | 20 +++++-----
 net/netfilter/ipset/ip_set_list_set.c   | 11 +++---
 5 files changed, 68 insertions(+), 54 deletions(-)

diff --git a/include/linux/netfilter/ipset/ip_set.h b/include/linux/netfilter/ipset/ip_set.h
index 7967516adc0d..c7174b816674 100644
--- a/include/linux/netfilter/ipset/ip_set.h
+++ b/include/linux/netfilter/ipset/ip_set.h
@@ -316,6 +316,16 @@ ip_set_init_counter(struct ip_set_counter *counter,
 		atomic64_set(&(counter)->packets, (long long)(ext->packets));
 }
 
+/* Netlink CB args */
+enum {
+	IPSET_CB_NET = 0,
+	IPSET_CB_DUMP,
+	IPSET_CB_INDEX,
+	IPSET_CB_ARG0,
+	IPSET_CB_ARG1,
+	IPSET_CB_ARG2,
+};
+
 /* register and unregister set references */
 extern ip_set_id_t ip_set_get_byname(struct net *net,
 				     const char *name, struct ip_set **set);
diff --git a/net/netfilter/ipset/ip_set_bitmap_gen.h b/net/netfilter/ipset/ip_set_bitmap_gen.h
index a13e15be7911..f2c7d83dc23f 100644
--- a/net/netfilter/ipset/ip_set_bitmap_gen.h
+++ b/net/netfilter/ipset/ip_set_bitmap_gen.h
@@ -198,13 +198,14 @@ mtype_list(const struct ip_set *set,
 	struct mtype *map = set->data;
 	struct nlattr *adt, *nested;
 	void *x;
-	u32 id, first = cb->args[2];
+	u32 id, first = cb->args[IPSET_CB_ARG0];
 
 	adt = ipset_nest_start(skb, IPSET_ATTR_ADT);
 	if (!adt)
 		return -EMSGSIZE;
-	for (; cb->args[2] < map->elements; cb->args[2]++) {
-		id = cb->args[2];
+	for (; cb->args[IPSET_CB_ARG0] < map->elements;
+	     cb->args[IPSET_CB_ARG0]++) {
+		id = cb->args[IPSET_CB_ARG0];
 		x = get_ext(set, map, id);
 		if (!test_bit(id, map->members) ||
 		    (SET_WITH_TIMEOUT(set) &&
@@ -231,14 +232,14 @@ mtype_list(const struct ip_set *set,
 	ipset_nest_end(skb, adt);
 
 	/* Set listing finished */
-	cb->args[2] = 0;
+	cb->args[IPSET_CB_ARG0] = 0;
 
 	return 0;
 
 nla_put_failure:
 	nla_nest_cancel(skb, nested);
 	if (unlikely(id == first)) {
-		cb->args[2] = 0;
+		cb->args[IPSET_CB_ARG0] = 0;
 		return -EMSGSIZE;
 	}
 	ipset_nest_end(skb, adt);
diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
index dc9284bdd2dd..bac7e01df67f 100644
--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -1182,10 +1182,12 @@ ip_set_swap(struct sock *ctnl, struct sk_buff *skb,
 static int
 ip_set_dump_done(struct netlink_callback *cb)
 {
-	struct ip_set_net *inst = (struct ip_set_net *)cb->data;
-	if (cb->args[2]) {
-		pr_debug("release set %s\n", nfnl_set(inst, cb->args[1])->name);
-		__ip_set_put_byindex(inst, (ip_set_id_t) cb->args[1]);
+	struct ip_set_net *inst = (struct ip_set_net *)cb->args[IPSET_CB_NET];
+	if (cb->args[IPSET_CB_ARG0]) {
+		pr_debug("release set %s\n",
+			 nfnl_set(inst, cb->args[IPSET_CB_INDEX])->name);
+		__ip_set_put_byindex(inst,
+			(ip_set_id_t) cb->args[IPSET_CB_INDEX]);
 	}
 	return 0;
 }
@@ -1203,7 +1205,7 @@ dump_attrs(struct nlmsghdr *nlh)
 }
 
 static int
-dump_init(struct netlink_callback *cb)
+dump_init(struct netlink_callback *cb, struct ip_set_net *inst)
 {
 	struct nlmsghdr *nlh = nlmsg_hdr(cb->skb);
 	int min_len = nlmsg_total_size(sizeof(struct nfgenmsg));
@@ -1211,15 +1213,15 @@ dump_init(struct netlink_callback *cb)
 	struct nlattr *attr = (void *)nlh + min_len;
 	u32 dump_type;
 	ip_set_id_t index;
-	struct ip_set_net *inst = (struct ip_set_net *)cb->data;
 
 	/* Second pass, so parser can't fail */
 	nla_parse(cda, IPSET_ATTR_CMD_MAX,
 		  attr, nlh->nlmsg_len - min_len, ip_set_setname_policy);
 
-	/* cb->args[0] : dump single set/all sets
-	 *         [1] : set index
-	 *         [..]: type specific
+	/* cb->args[IPSET_CB_NET]:	net namespace
+	 *         [IPSET_CB_DUMP]:	dump single set/all sets
+	 *         [IPSET_CB_INDEX]: 	set index
+	 *         [IPSET_CB_ARG0]:	type specific
 	 */
 
 	if (cda[IPSET_ATTR_SETNAME]) {
@@ -1231,7 +1233,7 @@ dump_init(struct netlink_callback *cb)
 			return -ENOENT;
 
 		dump_type = DUMP_ONE;
-		cb->args[1] = index;
+		cb->args[IPSET_CB_INDEX] = index;
 	} else
 		dump_type = DUMP_ALL;
 
@@ -1239,7 +1241,8 @@ dump_init(struct netlink_callback *cb)
 		u32 f = ip_set_get_h32(cda[IPSET_ATTR_FLAGS]);
 		dump_type |= (f << 16);
 	}
-	cb->args[0] = dump_type;
+	cb->args[IPSET_CB_NET] = (unsigned long)inst;
+	cb->args[IPSET_CB_DUMP] = dump_type;
 
 	return 0;
 }
@@ -1251,12 +1254,12 @@ ip_set_dump_start(struct sk_buff *skb, struct netlink_callback *cb)
 	struct ip_set *set = NULL;
 	struct nlmsghdr *nlh = NULL;
 	unsigned int flags = NETLINK_CB(cb->skb).portid ? NLM_F_MULTI : 0;
+	struct ip_set_net *inst = ip_set_pernet(sock_net(skb->sk));
 	u32 dump_type, dump_flags;
 	int ret = 0;
-	struct ip_set_net *inst = (struct ip_set_net *)cb->data;
 
-	if (!cb->args[0]) {
-		ret = dump_init(cb);
+	if (!cb->args[IPSET_CB_DUMP]) {
+		ret = dump_init(cb, inst);
 		if (ret < 0) {
 			nlh = nlmsg_hdr(cb->skb);
 			/* We have to create and send the error message
@@ -1267,17 +1270,18 @@ ip_set_dump_start(struct sk_buff *skb, struct netlink_callback *cb)
 		}
 	}
 
-	if (cb->args[1] >= inst->ip_set_max)
+	if (cb->args[IPSET_CB_INDEX] >= inst->ip_set_max)
 		goto out;
 
-	dump_type = DUMP_TYPE(cb->args[0]);
-	dump_flags = DUMP_FLAGS(cb->args[0]);
-	max = dump_type == DUMP_ONE ? cb->args[1] + 1 : inst->ip_set_max;
+	dump_type = DUMP_TYPE(cb->args[IPSET_CB_DUMP]);
+	dump_flags = DUMP_FLAGS(cb->args[IPSET_CB_DUMP]);
+	max = dump_type == DUMP_ONE ? cb->args[IPSET_CB_INDEX] + 1
+				    : inst->ip_set_max;
 dump_last:
-	pr_debug("args[0]: %u %u args[1]: %ld\n",
-		 dump_type, dump_flags, cb->args[1]);
-	for (; cb->args[1] < max; cb->args[1]++) {
-		index = (ip_set_id_t) cb->args[1];
+	pr_debug("dump type, flag: %u %u index: %ld\n",
+		 dump_type, dump_flags, cb->args[IPSET_CB_INDEX]);
+	for (; cb->args[IPSET_CB_INDEX] < max; cb->args[IPSET_CB_INDEX]++) {
+		index = (ip_set_id_t) cb->args[IPSET_CB_INDEX];
 		set = nfnl_set(inst, index);
 		if (set == NULL) {
 			if (dump_type == DUMP_ONE) {
@@ -1294,7 +1298,7 @@ dump_last:
 		     !!(set->type->features & IPSET_DUMP_LAST)))
 			continue;
 		pr_debug("List set: %s\n", set->name);
-		if (!cb->args[2]) {
+		if (!cb->args[IPSET_CB_ARG0]) {
 			/* Start listing: make sure set won't be destroyed */
 			pr_debug("reference set\n");
 			__ip_set_get(set);
@@ -1311,7 +1315,7 @@ dump_last:
 			goto nla_put_failure;
 		if (dump_flags & IPSET_FLAG_LIST_SETNAME)
 			goto next_set;
-		switch (cb->args[2]) {
+		switch (cb->args[IPSET_CB_ARG0]) {
 		case 0:
 			/* Core header data */
 			if (nla_put_string(skb, IPSET_ATTR_TYPENAME,
@@ -1331,7 +1335,7 @@ dump_last:
 			read_lock_bh(&set->lock);
 			ret = set->variant->list(set, skb, cb);
 			read_unlock_bh(&set->lock);
-			if (!cb->args[2])
+			if (!cb->args[IPSET_CB_ARG0])
 				/* Set is done, proceed with next one */
 				goto next_set;
 			goto release_refcount;
@@ -1340,8 +1344,8 @@ dump_last:
 	/* If we dump all sets, continue with dumping last ones */
 	if (dump_type == DUMP_ALL) {
 		dump_type = DUMP_LAST;
-		cb->args[0] = dump_type | (dump_flags << 16);
-		cb->args[1] = 0;
+		cb->args[IPSET_CB_DUMP] = dump_type | (dump_flags << 16);
+		cb->args[IPSET_CB_INDEX] = 0;
 		goto dump_last;
 	}
 	goto out;
@@ -1350,15 +1354,15 @@ nla_put_failure:
 	ret = -EFAULT;
 next_set:
 	if (dump_type == DUMP_ONE)
-		cb->args[1] = IPSET_INVALID_ID;
+		cb->args[IPSET_CB_INDEX] = IPSET_INVALID_ID;
 	else
-		cb->args[1]++;
+		cb->args[IPSET_CB_INDEX]++;
 release_refcount:
 	/* If there was an error or set is done, release set */
-	if (ret || !cb->args[2]) {
+	if (ret || !cb->args[IPSET_CB_ARG0]) {
 		pr_debug("release set %s\n", nfnl_set(inst, index)->name);
 		__ip_set_put_byindex(inst, index);
-		cb->args[2] = 0;
+		cb->args[IPSET_CB_ARG0] = 0;
 	}
 out:
 	if (nlh) {
@@ -1375,8 +1379,6 @@ ip_set_dump(struct sock *ctnl, struct sk_buff *skb,
 	    const struct nlmsghdr *nlh,
 	    const struct nlattr * const attr[])
 {
-	struct ip_set_net *inst = ip_set_pernet(sock_net(ctnl));
-
 	if (unlikely(protocol_failed(attr)))
 		return -IPSET_ERR_PROTOCOL;
 
@@ -1384,7 +1386,6 @@ ip_set_dump(struct sock *ctnl, struct sk_buff *skb,
 		struct netlink_dump_control c = {
 			.dump = ip_set_dump_start,
 			.done = ip_set_dump_done,
-			.data = (void *)inst
 		};
 		return netlink_dump_start(ctnl, skb, nlh, &c);
 	}
@@ -1961,7 +1962,6 @@ static int __net_init
 ip_set_net_init(struct net *net)
 {
 	struct ip_set_net *inst = ip_set_pernet(net);
-
 	struct ip_set **list;
 
 	inst->ip_set_max = max_sets ? max_sets : CONFIG_IP_SET_MAX;
diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index 6a80dbd30df7..2f80c74c871f 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -931,7 +931,7 @@ mtype_list(const struct ip_set *set,
 	struct nlattr *atd, *nested;
 	const struct hbucket *n;
 	const struct mtype_elem *e;
-	u32 first = cb->args[2];
+	u32 first = cb->args[IPSET_CB_ARG0];
 	/* We assume that one hash bucket fills into one page */
 	void *incomplete;
 	int i;
@@ -940,20 +940,22 @@ mtype_list(const struct ip_set *set,
 	if (!atd)
 		return -EMSGSIZE;
 	pr_debug("list hash set %s\n", set->name);
-	for (; cb->args[2] < jhash_size(t->htable_bits); cb->args[2]++) {
+	for (; cb->args[IPSET_CB_ARG0] < jhash_size(t->htable_bits);
+	     cb->args[IPSET_CB_ARG0]++) {
 		incomplete = skb_tail_pointer(skb);
-		n = hbucket(t, cb->args[2]);
-		pr_debug("cb->args[2]: %lu, t %p n %p\n", cb->args[2], t, n);
+		n = hbucket(t, cb->args[IPSET_CB_ARG0]);
+		pr_debug("cb->arg bucket: %lu, t %p n %p\n",
+			 cb->args[IPSET_CB_ARG0], t, n);
 		for (i = 0; i < n->pos; i++) {
 			e = ahash_data(n, i, set->dsize);
 			if (SET_WITH_TIMEOUT(set) &&
 			    ip_set_timeout_expired(ext_timeout(e, set)))
 				continue;
 			pr_debug("list hash %lu hbucket %p i %u, data %p\n",
-				 cb->args[2], n, i, e);
+				 cb->args[IPSET_CB_ARG0], n, i, e);
 			nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
 			if (!nested) {
-				if (cb->args[2] == first) {
+				if (cb->args[IPSET_CB_ARG0] == first) {
 					nla_nest_cancel(skb, atd);
 					return -EMSGSIZE;
 				} else
@@ -968,16 +970,16 @@ mtype_list(const struct ip_set *set,
 	}
 	ipset_nest_end(skb, atd);
 	/* Set listing finished */
-	cb->args[2] = 0;
+	cb->args[IPSET_CB_ARG0] = 0;
 
 	return 0;
 
 nla_put_failure:
 	nlmsg_trim(skb, incomplete);
-	if (unlikely(first == cb->args[2])) {
+	if (unlikely(first == cb->args[IPSET_CB_ARG0])) {
 		pr_warning("Can't list set %s: one bucket does not fit into "
 			   "a message. Please report it!\n", set->name);
-		cb->args[2] = 0;
+		cb->args[IPSET_CB_ARG0] = 0;
 		return -EMSGSIZE;
 	}
 	ipset_nest_end(skb, atd);
diff --git a/net/netfilter/ipset/ip_set_list_set.c b/net/netfilter/ipset/ip_set_list_set.c
index ec6f6d15dded..3e2317f3cf68 100644
--- a/net/netfilter/ipset/ip_set_list_set.c
+++ b/net/netfilter/ipset/ip_set_list_set.c
@@ -490,14 +490,15 @@ list_set_list(const struct ip_set *set,
 {
 	const struct list_set *map = set->data;
 	struct nlattr *atd, *nested;
-	u32 i, first = cb->args[2];
+	u32 i, first = cb->args[IPSET_CB_ARG0];
 	const struct set_elem *e;
 
 	atd = ipset_nest_start(skb, IPSET_ATTR_ADT);
 	if (!atd)
 		return -EMSGSIZE;
-	for (; cb->args[2] < map->size; cb->args[2]++) {
-		i = cb->args[2];
+	for (; cb->args[IPSET_CB_ARG0] < map->size;
+	     cb->args[IPSET_CB_ARG0]++) {
+		i = cb->args[IPSET_CB_ARG0];
 		e = list_set_elem(set, map, i);
 		if (e->id == IPSET_INVALID_ID)
 			goto finish;
@@ -522,13 +523,13 @@ list_set_list(const struct ip_set *set,
 finish:
 	ipset_nest_end(skb, atd);
 	/* Set listing finished */
-	cb->args[2] = 0;
+	cb->args[IPSET_CB_ARG0] = 0;
 	return 0;
 
 nla_put_failure:
 	nla_nest_cancel(skb, nested);
 	if (unlikely(i == first)) {
-		cb->args[2] = 0;
+		cb->args[IPSET_CB_ARG0] = 0;
 		return -EMSGSIZE;
 	}
 	ipset_nest_end(skb, atd);
-- 
cgit 


From 1a869205c75cb222263fa04f200485ffbe9eaadf Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Fri, 18 Oct 2013 11:41:57 +0200
Subject: netfilter: ipset: The unnamed union initialization may lead to
 compilation error

The unnamed union should be possible to be initialized directly, but
unfortunately it's not so:

/usr/src/ipset/kernel/net/netfilter/ipset/ip_set_hash_netnet.c: In
function ?hash_netnet4_kadt?:
/usr/src/ipset/kernel/net/netfilter/ipset/ip_set_hash_netnet.c:141:
error: unknown field ?cidr? specified in initializer

Reported-by: Husnu Demir <hdemir@metu.edu.tr>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/ipset/ip_set_hash_netnet.c     | 22 ++++++++++------------
 net/netfilter/ipset/ip_set_hash_netportnet.c | 22 ++++++++++------------
 2 files changed, 20 insertions(+), 24 deletions(-)

diff --git a/net/netfilter/ipset/ip_set_hash_netnet.c b/net/netfilter/ipset/ip_set_hash_netnet.c
index 426032706ca9..2bc2dec20b00 100644
--- a/net/netfilter/ipset/ip_set_hash_netnet.c
+++ b/net/netfilter/ipset/ip_set_hash_netnet.c
@@ -137,12 +137,11 @@ hash_netnet4_kadt(struct ip_set *set, const struct sk_buff *skb,
 {
 	const struct hash_netnet *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
-	struct hash_netnet4_elem e = {
-		.cidr[0] = h->nets[0].cidr[0] ? h->nets[0].cidr[0] : HOST_MASK,
-		.cidr[1] = h->nets[0].cidr[1] ? h->nets[0].cidr[1] : HOST_MASK,
-	};
+	struct hash_netnet4_elem e = { };
 	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 
+	e.cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
+	e.cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
 	if (adt == IPSET_TEST)
 		e.ccmp = (HOST_MASK << (sizeof(e.cidr[0]) * 8)) | HOST_MASK;
 
@@ -160,14 +159,14 @@ hash_netnet4_uadt(struct ip_set *set, struct nlattr *tb[],
 {
 	const struct hash_netnet *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
-	struct hash_netnet4_elem e = { .cidr[0] = HOST_MASK,
-				       .cidr[1] = HOST_MASK };
+	struct hash_netnet4_elem e = { };
 	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	u32 ip = 0, ip_to = 0, last;
 	u32 ip2 = 0, ip2_from = 0, ip2_to = 0, last2;
 	u8 cidr, cidr2;
 	int ret;
 
+	e.cidr[0] = e.cidr[1] = HOST_MASK;
 	if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
 		     !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
 		     !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) ||
@@ -364,12 +363,11 @@ hash_netnet6_kadt(struct ip_set *set, const struct sk_buff *skb,
 {
 	const struct hash_netnet *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
-	struct hash_netnet6_elem e = {
-		.cidr[0] = h->nets[0].cidr[0] ? h->nets[0].cidr[0] : HOST_MASK,
-		.cidr[1] = h->nets[0].cidr[1] ? h->nets[0].cidr[1] : HOST_MASK
-	};
+	struct hash_netnet6_elem e = { };
 	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 
+	e.cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
+	e.cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
 	if (adt == IPSET_TEST)
 		e.ccmp = (HOST_MASK << (sizeof(u8)*8)) | HOST_MASK;
 
@@ -386,11 +384,11 @@ hash_netnet6_uadt(struct ip_set *set, struct nlattr *tb[],
 	       enum ipset_adt adt, u32 *lineno, u32 flags, bool retried)
 {
 	ipset_adtfn adtfn = set->variant->adt[adt];
-	struct hash_netnet6_elem e = { .cidr[0] = HOST_MASK,
-				       .cidr[1] = HOST_MASK };
+	struct hash_netnet6_elem e = { };
 	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	int ret;
 
+	e.cidr[0] = e.cidr[1] = HOST_MASK;
 	if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
 		     !ip_set_optattr_netorder(tb, IPSET_ATTR_TIMEOUT) ||
 		     !ip_set_optattr_netorder(tb, IPSET_ATTR_CADT_FLAGS) ||
diff --git a/net/netfilter/ipset/ip_set_hash_netportnet.c b/net/netfilter/ipset/ip_set_hash_netportnet.c
index 363fab933d48..703d1192a6a2 100644
--- a/net/netfilter/ipset/ip_set_hash_netportnet.c
+++ b/net/netfilter/ipset/ip_set_hash_netportnet.c
@@ -147,12 +147,11 @@ hash_netportnet4_kadt(struct ip_set *set, const struct sk_buff *skb,
 {
 	const struct hash_netportnet *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
-	struct hash_netportnet4_elem e = {
-		.cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
-		.cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK),
-	};
+	struct hash_netportnet4_elem e = { };
 	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 
+	e.cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
+	e.cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
 	if (adt == IPSET_TEST)
 		e.ccmp = (HOST_MASK << (sizeof(e.cidr[0]) * 8)) | HOST_MASK;
 
@@ -174,8 +173,7 @@ hash_netportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
 {
 	const struct hash_netportnet *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
-	struct hash_netportnet4_elem e = { .cidr[0] = HOST_MASK,
-					   .cidr[1] = HOST_MASK };
+	struct hash_netportnet4_elem e = { };
 	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	u32 ip = 0, ip_to = 0, ip_last, p = 0, port, port_to;
 	u32 ip2_from = 0, ip2_to = 0, ip2_last, ip2;
@@ -183,6 +181,7 @@ hash_netportnet4_uadt(struct ip_set *set, struct nlattr *tb[],
 	u8 cidr, cidr2;
 	int ret;
 
+	e.cidr[0] = e.cidr[1] = HOST_MASK;
 	if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
 		     !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
 		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
@@ -419,12 +418,11 @@ hash_netportnet6_kadt(struct ip_set *set, const struct sk_buff *skb,
 {
 	const struct hash_netportnet *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
-	struct hash_netportnet6_elem e = {
-		.cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK),
-		.cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK),
-	};
+	struct hash_netportnet6_elem e = { };
 	struct ip_set_ext ext = IP_SET_INIT_KEXT(skb, opt, set);
 
+	e.cidr[0] = IP_SET_INIT_CIDR(h->nets[0].cidr[0], HOST_MASK);
+	e.cidr[1] = IP_SET_INIT_CIDR(h->nets[0].cidr[1], HOST_MASK);
 	if (adt == IPSET_TEST)
 		e.ccmp = (HOST_MASK << (sizeof(u8) * 8)) | HOST_MASK;
 
@@ -446,13 +444,13 @@ hash_netportnet6_uadt(struct ip_set *set, struct nlattr *tb[],
 {
 	const struct hash_netportnet *h = set->data;
 	ipset_adtfn adtfn = set->variant->adt[adt];
-	struct hash_netportnet6_elem e = { .cidr[0] = HOST_MASK,
-					   .cidr[1] = HOST_MASK };
+	struct hash_netportnet6_elem e = { };
 	struct ip_set_ext ext = IP_SET_INIT_UEXT(set);
 	u32 port, port_to;
 	bool with_ports = false;
 	int ret;
 
+	e.cidr[0] = e.cidr[1] = HOST_MASK;
 	if (unlikely(!tb[IPSET_ATTR_IP] || !tb[IPSET_ATTR_IP2] ||
 		     !ip_set_attr_netorder(tb, IPSET_ATTR_PORT) ||
 		     !ip_set_optattr_netorder(tb, IPSET_ATTR_PORT_TO) ||
-- 
cgit 


From 30a765d6433413c0eba90c969eecf12dfa2d111a Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Mon, 21 Oct 2013 19:07:34 +0530
Subject: ASoC: dont call dapm_sync while reporting jack always

While reporting the jack status snd_soc_jack_report() invokes snd_soc_dapm_sync()
always. This should be required when we have pins associated with jack and
reporting enables or disables these.
So add a check for this case

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/soc-jack.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/sound/soc/soc-jack.c b/sound/soc/soc-jack.c
index 71358e3b54d9..23d43dac91da 100644
--- a/sound/soc/soc-jack.c
+++ b/sound/soc/soc-jack.c
@@ -65,6 +65,7 @@ void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask)
 	struct snd_soc_codec *codec;
 	struct snd_soc_dapm_context *dapm;
 	struct snd_soc_jack_pin *pin;
+	unsigned int sync = 0;
 	int enable;
 
 	trace_snd_soc_jack_report(jack, mask, status);
@@ -92,12 +93,16 @@ void snd_soc_jack_report(struct snd_soc_jack *jack, int status, int mask)
 			snd_soc_dapm_enable_pin(dapm, pin->pin);
 		else
 			snd_soc_dapm_disable_pin(dapm, pin->pin);
+
+		/* we need to sync for this case only */
+		sync = 1;
 	}
 
 	/* Report before the DAPM sync to help users updating micbias status */
 	blocking_notifier_call_chain(&jack->notifier, jack->status, jack);
 
-	snd_soc_dapm_sync(dapm);
+	if (sync)
+		snd_soc_dapm_sync(dapm);
 
 	snd_jack_report(jack->jack, jack->status);
 
-- 
cgit 


From 347de6bab4bd0166115a5c90491a05bf9df508ee Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Mon, 21 Oct 2013 15:42:49 +0200
Subject: spi/s3c64xx: Do not ignore return value of spi_master_resume/suspend

During PM resume and suspend do not ignore the return value of
spi_master_suspend() or spi_master_resume(). Instead pass it further.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-s3c64xx.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 8e732a1b8a9b..435406b48fda 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -1477,7 +1477,9 @@ static int s3c64xx_spi_suspend(struct device *dev)
 	struct spi_master *master = dev_get_drvdata(dev);
 	struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
 
-	spi_master_suspend(master);
+	int ret = spi_master_suspend(master);
+	if (ret)
+		return ret;
 
 	/* Disable the clock */
 	clk_disable_unprepare(sdd->src_clk);
@@ -1503,9 +1505,7 @@ static int s3c64xx_spi_resume(struct device *dev)
 
 	s3c64xx_spi_hwinit(sdd, sdd->port_id);
 
-	spi_master_resume(master);
-
-	return 0;
+	return spi_master_resume(master);
 }
 #endif /* CONFIG_PM_SLEEP */
 
-- 
cgit 


From 9d7fd21acb2094d38d8560b0b3c91fa31efa6a71 Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Mon, 21 Oct 2013 15:42:50 +0200
Subject: spi/s3c64xx: Fix doubled clock disable on suspend

Fix doubled clock disable and unprepare during PM suspend which triggered
the warnings:

WARNING: at drivers/clk/clk.c:800 clk_disable+0x18/0x24()
Modules linked in:
CPU: 0 PID: 1745 Comm: sh Not tainted 3.10.14-01211-ge2549bb-dirty #62
[<c0015980>] (unwind_backtrace+0x0/0x138) from [<c0012a44>] (show_stack+0x10/0x14)
[<c0012a44>] (show_stack+0x10/0x14) from [<c0022818>] (warn_slowpath_common+0x4c/0x68)
[<c0022818>] (warn_slowpath_common+0x4c/0x68) from [<c0022850>] (warn_slowpath_null+0x1c/0x24)
[<c0022850>] (warn_slowpath_null+0x1c/0x24) from [<c036e274>] (clk_disable+0x18/0x24)
[<c036e274>] (clk_disable+0x18/0x24) from [<c02d5f78>] (s3c64xx_spi_suspend+0x28/0x54)
[<c02d5f78>] (s3c64xx_spi_suspend+0x28/0x54) from [<c02b3a54>] (platform_pm_suspend+0x2c/0x5c)
[<c02b3a54>] (platform_pm_suspend+0x2c/0x5c) from [<c02b8a30>] (dpm_run_callback+0x44/0x7c)
[<c02b8a30>] (dpm_run_callback+0x44/0x7c) from [<c02b8b70>] (__device_suspend+0x108/0x300)
[<c02b8b70>] (__device_suspend+0x108/0x300) from [<c02ba4e0>] (dpm_suspend+0x54/0x208)
[<c02ba4e0>] (dpm_suspend+0x54/0x208) from [<c0066bcc>] (suspend_devices_and_enter+0x98/0x458)
[<c0066bcc>] (suspend_devices_and_enter+0x98/0x458) from [<c0067150>] (pm_suspend+0x1c4/0x25c)
[<c0067150>] (pm_suspend+0x1c4/0x25c) from [<c0066044>] (state_store+0x6c/0xbc)
[<c0066044>] (state_store+0x6c/0xbc) from [<c0203290>] (kobj_attr_store+0x14/0x20)
[<c0203290>] (kobj_attr_store+0x14/0x20) from [<c0157530>] (sysfs_write_file+0xfc/0x164)
[<c0157530>] (sysfs_write_file+0xfc/0x164) from [<c00fd6b0>] (vfs_write+0xbc/0x1bc)
[<c00fd6b0>] (vfs_write+0xbc/0x1bc) from [<c00fdaf0>] (SyS_write+0x40/0x68)
[<c00fdaf0>] (SyS_write+0x40/0x68) from [<c000ea80>] (ret_fast_syscall+0x0/0x3c)

The clocks may be already disabled before suspending. Check PM runtime
suspend status and disable clocks only if device is not suspended.
During resume do not enable the clocks if device is runtime suspended.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-s3c64xx.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 435406b48fda..1dbdcc7b9ea7 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -1481,9 +1481,10 @@ static int s3c64xx_spi_suspend(struct device *dev)
 	if (ret)
 		return ret;
 
-	/* Disable the clock */
-	clk_disable_unprepare(sdd->src_clk);
-	clk_disable_unprepare(sdd->clk);
+	if (!pm_runtime_suspended(dev)) {
+		clk_disable_unprepare(sdd->clk);
+		clk_disable_unprepare(sdd->src_clk);
+	}
 
 	sdd->cur_speed = 0; /* Output Clock is stopped */
 
@@ -1499,9 +1500,10 @@ static int s3c64xx_spi_resume(struct device *dev)
 	if (sci->cfg_gpio)
 		sci->cfg_gpio();
 
-	/* Enable the clock */
-	clk_prepare_enable(sdd->src_clk);
-	clk_prepare_enable(sdd->clk);
+	if (!pm_runtime_suspended(dev)) {
+		clk_prepare_enable(sdd->src_clk);
+		clk_prepare_enable(sdd->clk);
+	}
 
 	s3c64xx_spi_hwinit(sdd, sdd->port_id);
 
-- 
cgit 


From b9c95bf4e07757b525aefe39136a7f5050077531 Mon Sep 17 00:00:00 2001
From: Peter Ujfalusi <peter.ujfalusi@ti.com>
Date: Mon, 21 Oct 2013 12:45:58 +0300
Subject: ARM: dts: AM4372: Add McASP nodes

Add nodes for McASP0 and McASP1 for AM43xx.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am4372.dtsi | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index c328d5cd8145..defaad16cdf1 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -633,5 +633,32 @@
 			dma-names = "tx", "rx";
 		};
 
+		mcasp0: mcasp@48038000 {
+			compatible = "ti,am33xx-mcasp-audio";
+			ti,hwmods = "mcasp0";
+			reg = <0x48038000 0x2000>,
+			      <0x46000000 0x400000>;
+			reg-names = "mpu", "dat";
+			interrupts = <80>, <81>;
+			interrupts-names = "tx", "rx";
+			status = "disabled";
+			dmas = <&edma 8>,
+			       <&edma 9>;
+			dma-names = "tx", "rx";
+		};
+
+		mcasp1: mcasp@4803C000 {
+			compatible = "ti,am33xx-mcasp-audio";
+			ti,hwmods = "mcasp1";
+			reg = <0x4803C000 0x2000>,
+			      <0x46400000 0x400000>;
+			reg-names = "mpu", "dat";
+			interrupts = <82>, <83>;
+			interrupts-names = "tx", "rx";
+			status = "disabled";
+			dmas = <&edma 10>,
+			       <&edma 11>;
+			dma-names = "tx", "rx";
+		};
 	};
 };
-- 
cgit 


From 0ae6f9ee55aa54dcae465ad7fafea639848a601c Mon Sep 17 00:00:00 2001
From: Enric Balletbo i Serra <eballetbo@gmail.com>
Date: Sat, 19 Oct 2013 22:55:19 +0200
Subject: ARM: dts: igep0033: Add mmc1 node for SDCARD support.

Add mmc1 dt node to IGEP COM AQUILA board.

Signed-off-by: Enric Balletbo i Serra <eballetbo@gmail.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am335x-igep0033.dtsi | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm/boot/dts/am335x-igep0033.dtsi b/arch/arm/boot/dts/am335x-igep0033.dtsi
index 06eba076bfcd..619624479311 100644
--- a/arch/arm/boot/dts/am335x-igep0033.dtsi
+++ b/arch/arm/boot/dts/am335x-igep0033.dtsi
@@ -44,6 +44,13 @@
 		regulator-max-microvolt = <5000000>;
 		regulator-boot-on;
 	};
+
+	vmmc: fixedregulator@0 {
+		compatible = "regulator-fixed";
+		regulator-name = "vmmc";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+	};
 };
 
 &am33xx_pinmux {
@@ -180,6 +187,12 @@
 	};
 };
 
+&mmc1 {
+	status = "okay";
+	vmmc-supply = <&vmmc>;
+	bus-width = <4>;
+};
+
 &uart0 {
 	status = "okay";
 	pinctrl-names = "default";
-- 
cgit 


From 20b80942ef4e3156a1c4aa5628d1bcb3479812da Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Wed, 16 Oct 2013 15:21:03 -0500
Subject: ARM: dts: OMAP3+: Add i2c aliases

Currently, on OMAP5, i2c1 and i2c5 defer probe due to pinctrl
dependencies. This changes the i2c ID each bus is registered with in
i2c-dev interface. As a result of this, many userspace tools break and
there is no consistent manner to fix the same if the i2c dev interface
have no consistent numbering.

Since this could happen for other OMAP derivatives, provide i2c alias
for all OMAP3+ SoCs to allow ordering the i2c devices correctly.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/dra7.dtsi  | 5 +++++
 arch/arm/boot/dts/omap3.dtsi | 3 +++
 arch/arm/boot/dts/omap4.dtsi | 4 ++++
 arch/arm/boot/dts/omap5.dtsi | 5 +++++
 4 files changed, 17 insertions(+)

diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index c01ef769761f..98ff6553edbc 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -20,6 +20,11 @@
 	interrupt-parent = <&gic>;
 
 	aliases {
+		i2c0 = &i2c1;
+		i2c1 = &i2c2;
+		i2c2 = &i2c3;
+		i2c3 = &i2c4;
+		i2c4 = &i2c5;
 		serial0 = &uart1;
 		serial1 = &uart2;
 		serial2 = &uart3;
diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index 16420ae16004..493b6d4373d1 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -19,6 +19,9 @@
 	interrupt-parent = <&intc>;
 
 	aliases {
+		i2c0 = &i2c1;
+		i2c1 = &i2c2;
+		i2c2 = &i2c3;
 		serial0 = &uart1;
 		serial1 = &uart2;
 		serial2 = &uart3;
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 6ca45b0d346b..0d8fdbad43fa 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -17,6 +17,10 @@
 	interrupt-parent = <&gic>;
 
 	aliases {
+		i2c0 = &i2c1;
+		i2c1 = &i2c2;
+		i2c2 = &i2c3;
+		i2c3 = &i2c4;
 		serial0 = &uart1;
 		serial1 = &uart2;
 		serial2 = &uart3;
diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
index 53686e46f482..2cb72ba1dd05 100644
--- a/arch/arm/boot/dts/omap5.dtsi
+++ b/arch/arm/boot/dts/omap5.dtsi
@@ -21,6 +21,11 @@
 	interrupt-parent = <&gic>;
 
 	aliases {
+		i2c0 = &i2c1;
+		i2c1 = &i2c2;
+		i2c2 = &i2c3;
+		i2c3 = &i2c4;
+		i2c4 = &i2c5;
 		serial0 = &uart1;
 		serial1 = &uart2;
 		serial2 = &uart3;
-- 
cgit 


From 6a96867844895008558810853c7838af39dd317c Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Wed, 16 Oct 2013 15:21:04 -0500
Subject: ARM: dts: AM33xx+: Add i2c aliases

Provide alias to allow ordering the i2c devices correctly.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am33xx.dtsi | 3 +++
 arch/arm/boot/dts/am4372.dtsi | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 3465d4b116af..97f501951564 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -18,6 +18,9 @@
 	interrupt-parent = <&intc>;
 
 	aliases {
+		i2c0 = &i2c0;
+		i2c1 = &i2c1;
+		i2c2 = &i2c2;
 		serial0 = &uart0;
 		serial1 = &uart1;
 		serial2 = &uart2;
diff --git a/arch/arm/boot/dts/am4372.dtsi b/arch/arm/boot/dts/am4372.dtsi
index defaad16cdf1..974d103ab3b1 100644
--- a/arch/arm/boot/dts/am4372.dtsi
+++ b/arch/arm/boot/dts/am4372.dtsi
@@ -18,6 +18,9 @@
 
 
 	aliases {
+		i2c0 = &i2c0;
+		i2c1 = &i2c1;
+		i2c2 = &i2c2;
 		serial0 = &uart0;
 		ethernet0 = &cpsw_emac0;
 		ethernet1 = &cpsw_emac1;
-- 
cgit 


From 75b9b65ee5a80e99efe2fd551d08bc86f115550f Mon Sep 17 00:00:00 2001
From: Jean-Francois Moine <moinejf@free.fr>
Date: Mon, 21 Oct 2013 10:50:49 +0200
Subject: ASoC: kirkwood: add S/PDIF support

This patch adds S/PDIF input/output for mvebu DT boards.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/kirkwood/kirkwood-i2s.c    | 99 +++++++++++++++++++++++++++++-------
 sound/soc/kirkwood/kirkwood-openrd.c |  2 +-
 sound/soc/kirkwood/kirkwood-t5325.c  |  2 +-
 3 files changed, 84 insertions(+), 19 deletions(-)

diff --git a/sound/soc/kirkwood/kirkwood-i2s.c b/sound/soc/kirkwood/kirkwood-i2s.c
index d0504a2d8c63..9ec38d15df9e 100644
--- a/sound/soc/kirkwood/kirkwood-i2s.c
+++ b/sound/soc/kirkwood/kirkwood-i2s.c
@@ -160,9 +160,11 @@ static int kirkwood_i2s_hw_params(struct snd_pcm_substream *substream,
 	case SNDRV_PCM_FORMAT_S16_LE:
 		i2s_value |= KIRKWOOD_I2S_CTL_SIZE_16;
 		ctl_play = KIRKWOOD_PLAYCTL_SIZE_16_C |
-			   KIRKWOOD_PLAYCTL_I2S_EN;
+			   KIRKWOOD_PLAYCTL_I2S_EN |
+			   KIRKWOOD_PLAYCTL_SPDIF_EN;
 		ctl_rec = KIRKWOOD_RECCTL_SIZE_16_C |
-			  KIRKWOOD_RECCTL_I2S_EN;
+			  KIRKWOOD_RECCTL_I2S_EN |
+			  KIRKWOOD_RECCTL_SPDIF_EN;
 		break;
 	/*
 	 * doesn't work... S20_3LE != kirkwood 20bit format ?
@@ -178,9 +180,11 @@ static int kirkwood_i2s_hw_params(struct snd_pcm_substream *substream,
 	case SNDRV_PCM_FORMAT_S24_LE:
 		i2s_value |= KIRKWOOD_I2S_CTL_SIZE_24;
 		ctl_play = KIRKWOOD_PLAYCTL_SIZE_24 |
-			   KIRKWOOD_PLAYCTL_I2S_EN;
+			   KIRKWOOD_PLAYCTL_I2S_EN |
+			   KIRKWOOD_PLAYCTL_SPDIF_EN;
 		ctl_rec = KIRKWOOD_RECCTL_SIZE_24 |
-			  KIRKWOOD_RECCTL_I2S_EN;
+			  KIRKWOOD_RECCTL_I2S_EN |
+			  KIRKWOOD_RECCTL_SPDIF_EN;
 		break;
 	case SNDRV_PCM_FORMAT_S32_LE:
 		i2s_value |= KIRKWOOD_I2S_CTL_SIZE_32;
@@ -240,6 +244,11 @@ static int kirkwood_i2s_play_trigger(struct snd_pcm_substream *substream,
 				   ctl);
 	}
 
+	if (dai->id == 0)
+		ctl &= ~KIRKWOOD_PLAYCTL_SPDIF_EN;	/* i2s */
+	else
+		ctl &= ~KIRKWOOD_PLAYCTL_I2S_EN;	/* spdif */
+
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
 		/* configure */
@@ -258,7 +267,8 @@ static int kirkwood_i2s_play_trigger(struct snd_pcm_substream *substream,
 
 	case SNDRV_PCM_TRIGGER_STOP:
 		/* stop audio, disable interrupts */
-		ctl |= KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE;
+		ctl |= KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE |
+				KIRKWOOD_PLAYCTL_SPDIF_MUTE;
 		writel(ctl, priv->io + KIRKWOOD_PLAYCTL);
 
 		value = readl(priv->io + KIRKWOOD_INT_MASK);
@@ -272,13 +282,15 @@ static int kirkwood_i2s_play_trigger(struct snd_pcm_substream *substream,
 
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 	case SNDRV_PCM_TRIGGER_SUSPEND:
-		ctl |= KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE;
+		ctl |= KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE |
+				KIRKWOOD_PLAYCTL_SPDIF_MUTE;
 		writel(ctl, priv->io + KIRKWOOD_PLAYCTL);
 		break;
 
 	case SNDRV_PCM_TRIGGER_RESUME:
 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-		ctl &= ~(KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE);
+		ctl &= ~(KIRKWOOD_PLAYCTL_PAUSE | KIRKWOOD_PLAYCTL_I2S_MUTE |
+				KIRKWOOD_PLAYCTL_SPDIF_MUTE);
 		writel(ctl, priv->io + KIRKWOOD_PLAYCTL);
 		break;
 
@@ -301,7 +313,13 @@ static int kirkwood_i2s_rec_trigger(struct snd_pcm_substream *substream,
 	case SNDRV_PCM_TRIGGER_START:
 		/* configure */
 		ctl = priv->ctl_rec;
-		value = ctl & ~KIRKWOOD_RECCTL_I2S_EN;
+		if (dai->id == 0)
+			ctl &= ~KIRKWOOD_RECCTL_SPDIF_EN;	/* i2s */
+		else
+			ctl &= ~KIRKWOOD_RECCTL_I2S_EN;		/* spdif */
+
+		value = ctl & ~(KIRKWOOD_RECCTL_I2S_EN |
+				KIRKWOOD_RECCTL_SPDIF_EN);
 		writel(value, priv->io + KIRKWOOD_RECCTL);
 
 		/* enable interrupts */
@@ -361,9 +379,8 @@ static int kirkwood_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
 	return 0;
 }
 
-static int kirkwood_i2s_probe(struct snd_soc_dai *dai)
+static int kirkwood_i2s_init(struct kirkwood_dma_data *priv)
 {
-	struct kirkwood_dma_data *priv = snd_soc_dai_get_drvdata(dai);
 	unsigned long value;
 	unsigned int reg_data;
 
@@ -404,9 +421,29 @@ static const struct snd_soc_dai_ops kirkwood_i2s_dai_ops = {
 	.set_fmt        = kirkwood_i2s_set_fmt,
 };
 
-
-static struct snd_soc_dai_driver kirkwood_i2s_dai = {
-	.probe = kirkwood_i2s_probe,
+static struct snd_soc_dai_driver kirkwood_i2s_dai[2] = {
+    {
+	.name = "i2s",
+	.id = 0,
+	.playback = {
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
+				SNDRV_PCM_RATE_96000,
+		.formats = KIRKWOOD_I2S_FORMATS,
+	},
+	.capture = {
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
+				SNDRV_PCM_RATE_96000,
+		.formats = KIRKWOOD_I2S_FORMATS,
+	},
+	.ops = &kirkwood_i2s_dai_ops,
+    },
+    {
+	.name = "spdif",
+	.id = 1,
 	.playback = {
 		.channels_min = 1,
 		.channels_max = 2,
@@ -422,10 +459,34 @@ static struct snd_soc_dai_driver kirkwood_i2s_dai = {
 		.formats = KIRKWOOD_I2S_FORMATS,
 	},
 	.ops = &kirkwood_i2s_dai_ops,
+    },
 };
 
-static struct snd_soc_dai_driver kirkwood_i2s_dai_extclk = {
-	.probe = kirkwood_i2s_probe,
+static struct snd_soc_dai_driver kirkwood_i2s_dai_extclk[2] = {
+    {
+	.name = "i2s",
+	.id = 0,
+	.playback = {
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_8000_192000 |
+			 SNDRV_PCM_RATE_CONTINUOUS |
+			 SNDRV_PCM_RATE_KNOT,
+		.formats = KIRKWOOD_I2S_FORMATS,
+	},
+	.capture = {
+		.channels_min = 1,
+		.channels_max = 2,
+		.rates = SNDRV_PCM_RATE_8000_192000 |
+			 SNDRV_PCM_RATE_CONTINUOUS |
+			 SNDRV_PCM_RATE_KNOT,
+		.formats = KIRKWOOD_I2S_FORMATS,
+	},
+	.ops = &kirkwood_i2s_dai_ops,
+    },
+    {
+	.name = "spdif",
+	.id = 1,
 	.playback = {
 		.channels_min = 1,
 		.channels_max = 2,
@@ -443,6 +504,7 @@ static struct snd_soc_dai_driver kirkwood_i2s_dai_extclk = {
 		.formats = KIRKWOOD_I2S_FORMATS,
 	},
 	.ops = &kirkwood_i2s_dai_ops,
+    },
 };
 
 static const struct snd_soc_component_driver kirkwood_i2s_component = {
@@ -452,7 +514,7 @@ static const struct snd_soc_component_driver kirkwood_i2s_component = {
 static int kirkwood_i2s_dev_probe(struct platform_device *pdev)
 {
 	struct kirkwood_asoc_platform_data *data = pdev->dev.platform_data;
-	struct snd_soc_dai_driver *soc_dai = &kirkwood_i2s_dai;
+	struct snd_soc_dai_driver *soc_dai = kirkwood_i2s_dai;
 	struct kirkwood_dma_data *priv;
 	struct resource *mem;
 	struct device_node *np = pdev->dev.of_node;
@@ -524,7 +586,7 @@ static int kirkwood_i2s_dev_probe(struct platform_device *pdev)
 	}
 
 	err = snd_soc_register_component(&pdev->dev, &kirkwood_i2s_component,
-					 soc_dai, 1);
+					 soc_dai, 2);
 	if (err) {
 		dev_err(&pdev->dev, "snd_soc_register_component failed\n");
 		goto err_component;
@@ -535,6 +597,9 @@ static int kirkwood_i2s_dev_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "snd_soc_register_platform failed\n");
 		goto err_platform;
 	}
+
+	kirkwood_i2s_init(priv);
+
 	return 0;
  err_platform:
 	snd_soc_unregister_component(&pdev->dev);
diff --git a/sound/soc/kirkwood/kirkwood-openrd.c b/sound/soc/kirkwood/kirkwood-openrd.c
index 025be0e97164..65f2a5b9ec3b 100644
--- a/sound/soc/kirkwood/kirkwood-openrd.c
+++ b/sound/soc/kirkwood/kirkwood-openrd.c
@@ -52,7 +52,7 @@ static struct snd_soc_dai_link openrd_client_dai[] = {
 {
 	.name = "CS42L51",
 	.stream_name = "CS42L51 HiFi",
-	.cpu_dai_name = "mvebu-audio",
+	.cpu_dai_name = "i2s",
 	.platform_name = "mvebu-audio",
 	.codec_dai_name = "cs42l51-hifi",
 	.codec_name = "cs42l51-codec.0-004a",
diff --git a/sound/soc/kirkwood/kirkwood-t5325.c b/sound/soc/kirkwood/kirkwood-t5325.c
index 27545b0c4856..d213832b0c72 100644
--- a/sound/soc/kirkwood/kirkwood-t5325.c
+++ b/sound/soc/kirkwood/kirkwood-t5325.c
@@ -68,7 +68,7 @@ static struct snd_soc_dai_link t5325_dai[] = {
 {
 	.name = "ALC5621",
 	.stream_name = "ALC5621 HiFi",
-	.cpu_dai_name = "mvebu-audio",
+	.cpu_dai_name = "i2s",
 	.platform_name = "mvebu-audio",
 	.codec_dai_name = "alc5621-hifi",
 	.codec_name = "alc562x-codec.0-001a",
-- 
cgit 


From cffbfa66485e4940091d7e64024e802314d24c09 Mon Sep 17 00:00:00 2001
From: Haicheng Li <haicheng.li@linux.intel.com>
Date: Fri, 18 Oct 2013 17:24:07 +0800
Subject: f2fs: use true and false for boolean value

Signed-off-by: Haicheng Li <haicheng.li@linux.intel.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/segment.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 3b203597c744..862fef3ae253 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1277,9 +1277,9 @@ static bool flush_sits_in_journal(struct f2fs_sb_info *sbi)
 			__mark_sit_entry_dirty(sbi, segno);
 		}
 		update_sits_in_cursum(sum, -sits_in_cursum(sum));
-		return 1;
+		return true;
 	}
-	return 0;
+	return false;
 }
 
 /*
-- 
cgit 


From 435f2a1b58ac8f50894f23549c97791085f7cba2 Mon Sep 17 00:00:00 2001
From: Haicheng Li <haicheng.li@linux.intel.com>
Date: Fri, 18 Oct 2013 17:24:08 +0800
Subject: f2fs: no need to check other dirty_segmap when the seg has been found

Because one dirty seg can only be mapped to one dirty_type. Otherwise, it's a bug.

Signed-off-by: Haicheng Li <haicheng.li@linux.intel.com>
[Jaegeuk Kim: modify a comment related to this patch]
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/segment.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 862fef3ae253..8ac161965242 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -78,10 +78,14 @@ static void __remove_dirty_segment(struct f2fs_sb_info *sbi, unsigned int segno,
 	if (dirty_type == DIRTY) {
 		enum dirty_type t = DIRTY_HOT_DATA;
 
-		/* clear all the bitmaps */
-		for (; t <= DIRTY_COLD_NODE; t++)
-			if (test_and_clear_bit(segno, dirty_i->dirty_segmap[t]))
+		/* clear its dirty bitmap */
+		for (; t <= DIRTY_COLD_NODE; t++) {
+			if (test_and_clear_bit(segno,
+						dirty_i->dirty_segmap[t])) {
 				dirty_i->nr_dirty[t]--;
+				break;
+			}
+		}
 
 		if (get_valid_blocks(sbi, segno, sbi->segs_per_sec) == 0)
 			clear_bit(GET_SECNO(sbi, segno),
-- 
cgit 


From 256ba181cb2ddeef8e0a9b0540b09e0f77bf5540 Mon Sep 17 00:00:00 2001
From: Jyri Sarha <jsarha@ti.com>
Date: Fri, 18 Oct 2013 18:37:42 +0300
Subject: ASoC: davinci-mcasp: Add location for data port registers to DT

This patch adds a separate register location for data port registers to
mcasp DT bindings. On am33xx SoCs the McASP registers are mapped
trough L4 interconnect, but data port registers are also mapped trough
L3 bus to a different memory location.

Signed-off-by: Hebbar, Gururaja <gururaja.hebbar@ti.com>
Signed-off-by: Darren Etheridge <detheridge@ti.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 .../bindings/sound/davinci-mcasp-audio.txt         |  8 ++-
 sound/soc/davinci/davinci-mcasp.c                  | 61 +++++++++++++++-------
 2 files changed, 47 insertions(+), 22 deletions(-)

diff --git a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
index 374e145c2ef1..c2ab8697e24a 100644
--- a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
+++ b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
@@ -6,7 +6,11 @@ Required properties:
 	"ti,da830-mcasp-audio"	: for both DA830 & DA850 platforms
 	"ti,omap2-mcasp-audio"	: for OMAP2 platforms (TI81xx, AM33xx)
 
-- reg : Should contain McASP registers offset and length
+- reg : Should contain reg specifiers for the entries in the reg-names property.
+- reg-names : Should contain:
+         * "mpu" for the main registers (required). For compatibility with
+           existing software, it is recommended this is the first entry.
+         * "dat" for separate data port register access (optional).
 - interrupts : Interrupt number for McASP
 - op-mode : I2S/DIT ops mode.
 - tdm-slots : Slots for TDM operation.
@@ -15,7 +19,6 @@ Required properties:
 		to "num-serializer" parameter. Each entry is a number indication
 		serializer pin direction. (0 - INACTIVE, 1 - TX, 2 - RX)
 
-
 Optional properties:
 
 - ti,hwmods : Must be "mcasp<n>", n is controller instance starting 0
@@ -31,6 +34,7 @@ mcasp0: mcasp0@1d00000 {
 	#address-cells = <1>;
 	#size-cells = <0>;
 	reg = <0x100000 0x3000>;
+	reg-names "mpu";
 	interrupts = <82 83>;
 	op-mode = <0>;		/* MCASP_IIS_MODE */
 	tdm-slots = <2>;
diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index cdfe959d6062..806bec34e4d9 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -1001,18 +1001,40 @@ static const struct snd_soc_component_driver davinci_mcasp_component = {
 	.name		= "davinci-mcasp",
 };
 
+/* Some HW specific values and defaults. The rest is filled in from DT. */
+static struct snd_platform_data dm646x_mcasp_pdata = {
+	.tx_dma_offset = 0x400,
+	.rx_dma_offset = 0x400,
+	.asp_chan_q = EVENTQ_0,
+	.version = MCASP_VERSION_1,
+};
+
+static struct snd_platform_data da830_mcasp_pdata = {
+	.tx_dma_offset = 0x2000,
+	.rx_dma_offset = 0x2000,
+	.asp_chan_q = EVENTQ_0,
+	.version = MCASP_VERSION_2,
+};
+
+static struct snd_platform_data omap2_mcasp_pdata = {
+	.tx_dma_offset = 0,
+	.rx_dma_offset = 0,
+	.asp_chan_q = EVENTQ_0,
+	.version = MCASP_VERSION_3,
+};
+
 static const struct of_device_id mcasp_dt_ids[] = {
 	{
 		.compatible = "ti,dm646x-mcasp-audio",
-		.data = (void *)MCASP_VERSION_1,
+		.data = &dm646x_mcasp_pdata,
 	},
 	{
 		.compatible = "ti,da830-mcasp-audio",
-		.data = (void *)MCASP_VERSION_2,
+		.data = &da830_mcasp_pdata,
 	},
 	{
 		.compatible = "ti,omap2-mcasp-audio",
-		.data = (void *)MCASP_VERSION_3,
+		.data = &omap2_mcasp_pdata,
 	},
 	{ /* sentinel */ }
 };
@@ -1035,20 +1057,13 @@ static struct snd_platform_data *davinci_mcasp_set_pdata_from_of(
 		pdata = pdev->dev.platform_data;
 		return pdata;
 	} else if (match) {
-		pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
-		if (!pdata) {
-			ret = -ENOMEM;
-			goto nodata;
-		}
+		pdata = (struct snd_platform_data *) match->data;
 	} else {
 		/* control shouldn't reach here. something is wrong */
 		ret = -EINVAL;
 		goto nodata;
 	}
 
-	if (match->data)
-		pdata->version = (u8)((int)match->data);
-
 	ret = of_property_read_u32(np, "op-mode", &val);
 	if (ret >= 0)
 		pdata->op_mode = val;
@@ -1124,7 +1139,7 @@ nodata:
 static int davinci_mcasp_probe(struct platform_device *pdev)
 {
 	struct davinci_pcm_dma_params *dma_data;
-	struct resource *mem, *ioarea, *res;
+	struct resource *mem, *ioarea, *res, *dat;
 	struct snd_platform_data *pdata;
 	struct davinci_audio_dev *dev;
 	int ret;
@@ -1145,10 +1160,15 @@ static int davinci_mcasp_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	mem = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mpu");
 	if (!mem) {
-		dev_err(&pdev->dev, "no mem resource?\n");
-		return -ENODEV;
+		dev_warn(dev->dev,
+			 "\"mpu\" mem resource not found, using index 0\n");
+		mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+		if (!mem) {
+			dev_err(&pdev->dev, "no mem resource?\n");
+			return -ENODEV;
+		}
 	}
 
 	ioarea = devm_request_mem_region(&pdev->dev, mem->start,
@@ -1182,13 +1202,16 @@ static int davinci_mcasp_probe(struct platform_device *pdev)
 	dev->rxnumevt = pdata->rxnumevt;
 	dev->dev = &pdev->dev;
 
+	dat = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dat");
+	if (!dat)
+		dat = mem;
+
 	dma_data = &dev->dma_params[SNDRV_PCM_STREAM_PLAYBACK];
 	dma_data->asp_chan_q = pdata->asp_chan_q;
 	dma_data->ram_chan_q = pdata->ram_chan_q;
 	dma_data->sram_pool = pdata->sram_pool;
 	dma_data->sram_size = pdata->sram_size_playback;
-	dma_data->dma_addr = (dma_addr_t) (pdata->tx_dma_offset +
-							mem->start);
+	dma_data->dma_addr = dat->start + pdata->tx_dma_offset;
 
 	/* first TX, then RX */
 	res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
@@ -1205,8 +1228,7 @@ static int davinci_mcasp_probe(struct platform_device *pdev)
 	dma_data->ram_chan_q = pdata->ram_chan_q;
 	dma_data->sram_pool = pdata->sram_pool;
 	dma_data->sram_size = pdata->sram_size_capture;
-	dma_data->dma_addr = (dma_addr_t)(pdata->rx_dma_offset +
-							mem->start);
+	dma_data->dma_addr = dat->start + pdata->rx_dma_offset;
 
 	res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
 	if (!res) {
@@ -1305,4 +1327,3 @@ module_platform_driver(davinci_mcasp_driver);
 MODULE_AUTHOR("Steve Chen");
 MODULE_DESCRIPTION("TI DAVINCI McASP SoC Interface");
 MODULE_LICENSE("GPL");
-
-- 
cgit 


From 4023fe6ff2192d6050647571ea54f5497b2ec8f6 Mon Sep 17 00:00:00 2001
From: Jyri Sarha <jsarha@ti.com>
Date: Fri, 18 Oct 2013 18:37:43 +0300
Subject: ASoC: davinci-mcasp: Extract DMA channels directly from DT

Extract DMA channels directly from DT as they can not be found from
platform resources anymore. This is a work-around until davinci audio
driver is updated to use dmaengine.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 .../bindings/sound/davinci-mcasp-audio.txt         |  5 +++
 include/linux/platform_data/davinci_asp.h          |  2 +
 sound/soc/davinci/davinci-mcasp.c                  | 45 +++++++++++++++-------
 3 files changed, 38 insertions(+), 14 deletions(-)

diff --git a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
index c2ab8697e24a..c3ccde71f97a 100644
--- a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
+++ b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
@@ -18,6 +18,11 @@ Required properties:
 - serial-dir : A list of serializer pin mode. The list number should be equal
 		to "num-serializer" parameter. Each entry is a number indication
 		serializer pin direction. (0 - INACTIVE, 1 - TX, 2 - RX)
+- dmas: two element list of DMA controller phandles and DMA request line
+        ordered pairs.
+- dma-names: identifier string for each DMA request line in the dmas property.
+	     These strings correspond 1:1 with the ordered pairs in dmas. The dma
+	     identifiers must be "rx" and "tx".
 
 Optional properties:
 
diff --git a/include/linux/platform_data/davinci_asp.h b/include/linux/platform_data/davinci_asp.h
index 8db5ae03b6e3..689a856b86f9 100644
--- a/include/linux/platform_data/davinci_asp.h
+++ b/include/linux/platform_data/davinci_asp.h
@@ -84,6 +84,8 @@ struct snd_platform_data {
 	u8 version;
 	u8 txnumevt;
 	u8 rxnumevt;
+	int tx_dma_channel;
+	int rx_dma_channel;
 };
 
 enum {
diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index 806bec34e4d9..4c207508348f 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -1047,6 +1047,7 @@ static struct snd_platform_data *davinci_mcasp_set_pdata_from_of(
 	struct snd_platform_data *pdata = NULL;
 	const struct of_device_id *match =
 			of_match_device(mcasp_dt_ids, &pdev->dev);
+	struct of_phandle_args dma_spec;
 
 	const u32 *of_serial_dir32;
 	u8 *of_serial_dir;
@@ -1109,6 +1110,28 @@ static struct snd_platform_data *davinci_mcasp_set_pdata_from_of(
 		pdata->serial_dir = of_serial_dir;
 	}
 
+	ret = of_property_match_string(np, "dma-names", "tx");
+	if (ret < 0)
+		goto nodata;
+
+	ret = of_parse_phandle_with_args(np, "dmas", "#dma-cells", ret,
+					 &dma_spec);
+	if (ret < 0)
+		goto nodata;
+
+	pdata->tx_dma_channel = dma_spec.args[0];
+
+	ret = of_property_match_string(np, "dma-names", "rx");
+	if (ret < 0)
+		goto nodata;
+
+	ret = of_parse_phandle_with_args(np, "dmas", "#dma-cells", ret,
+					 &dma_spec);
+	if (ret < 0)
+		goto nodata;
+
+	pdata->rx_dma_channel = dma_spec.args[0];
+
 	ret = of_property_read_u32(np, "tx-num-evt", &val);
 	if (ret >= 0)
 		pdata->txnumevt = val;
@@ -1213,15 +1236,11 @@ static int davinci_mcasp_probe(struct platform_device *pdev)
 	dma_data->sram_size = pdata->sram_size_playback;
 	dma_data->dma_addr = dat->start + pdata->tx_dma_offset;
 
-	/* first TX, then RX */
 	res = platform_get_resource(pdev, IORESOURCE_DMA, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "no DMA resource\n");
-		ret = -ENODEV;
-		goto err_release_clk;
-	}
-
-	dma_data->channel = res->start;
+	if (res)
+		dma_data->channel = res->start;
+	else
+		dma_data->channel = pdata->tx_dma_channel;
 
 	dma_data = &dev->dma_params[SNDRV_PCM_STREAM_CAPTURE];
 	dma_data->asp_chan_q = pdata->asp_chan_q;
@@ -1231,13 +1250,11 @@ static int davinci_mcasp_probe(struct platform_device *pdev)
 	dma_data->dma_addr = dat->start + pdata->rx_dma_offset;
 
 	res = platform_get_resource(pdev, IORESOURCE_DMA, 1);
-	if (!res) {
-		dev_err(&pdev->dev, "no DMA resource\n");
-		ret = -ENODEV;
-		goto err_release_clk;
-	}
+	if (res)
+		dma_data->channel = res->start;
+	else
+		dma_data->channel = pdata->rx_dma_channel;
 
-	dma_data->channel = res->start;
 	dev_set_drvdata(&pdev->dev, dev);
 	ret = snd_soc_register_component(&pdev->dev, &davinci_mcasp_component,
 					 &davinci_mcasp_dai[pdata->op_mode], 1);
-- 
cgit 


From 3af9e0315699b60762157662f721f50fd1fe529b Mon Sep 17 00:00:00 2001
From: Jyri Sarha <jsarha@ti.com>
Date: Fri, 18 Oct 2013 18:37:44 +0300
Subject: ASoC: davinci-mcasp: Change compatible property model to more
 accurate

Change the model omap2-mcasp-audio in compatible property to
am33xx-mcasp-audio as omap2 does not have mcasp.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt | 2 +-
 sound/soc/davinci/davinci-mcasp.c                               | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
index c3ccde71f97a..1945aecf0a3a 100644
--- a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
+++ b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
@@ -4,7 +4,7 @@ Required properties:
 - compatible :
 	"ti,dm646x-mcasp-audio"	: for DM646x platforms
 	"ti,da830-mcasp-audio"	: for both DA830 & DA850 platforms
-	"ti,omap2-mcasp-audio"	: for OMAP2 platforms (TI81xx, AM33xx)
+	"ti,am33xx-mcasp-audio"	: for AM33xx platforms (AM33xx, TI81xx)
 
 - reg : Should contain reg specifiers for the entries in the reg-names property.
 - reg-names : Should contain:
diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index 4c207508348f..bbc9a0793eb9 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -1033,7 +1033,7 @@ static const struct of_device_id mcasp_dt_ids[] = {
 		.data = &da830_mcasp_pdata,
 	},
 	{
-		.compatible = "ti,omap2-mcasp-audio",
+		.compatible = "ti,am33xx-mcasp-audio",
 		.data = &omap2_mcasp_pdata,
 	},
 	{ /* sentinel */ }
-- 
cgit 


From 7bd59381c82defe19875284c48b1ac9dacd16e8f Mon Sep 17 00:00:00 2001
From: Gu Zheng <guz.fnst@cn.fujitsu.com>
Date: Tue, 22 Oct 2013 14:52:26 +0800
Subject: f2fs: introduce f2fs_kmem_cache_alloc to hide the unfailed, kmem
 cache allocation

Introduce the unfailed version of kmem_cache_alloc named f2fs_kmem_cache_alloc
to hide the retry routine and make the code a bit cleaner.

v2:
   Fix the wrong use of 'retry' tag pointed out by Gao feng.
   Use more neat code to remove redundant tag suggested by Haicheng Li.

Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/checkpoint.c | 26 +++++++-------------------
 fs/f2fs/f2fs.h       | 15 +++++++++++++++
 fs/f2fs/gc.c         |  8 ++------
 fs/f2fs/node.c       | 27 +++++++++++----------------
 4 files changed, 35 insertions(+), 41 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 8d16071a3b23..6fb484c84ee7 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -226,12 +226,8 @@ void add_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
 			break;
 		orphan = NULL;
 	}
-retry:
-	new = kmem_cache_alloc(orphan_entry_slab, GFP_ATOMIC);
-	if (!new) {
-		cond_resched();
-		goto retry;
-	}
+
+	new = f2fs_kmem_cache_alloc(orphan_entry_slab, GFP_ATOMIC);
 	new->ino = ino;
 
 	/* add new_oentry into list which is sorted by inode number */
@@ -484,12 +480,8 @@ void set_dirty_dir_page(struct inode *inode, struct page *page)
 
 	if (!S_ISDIR(inode->i_mode))
 		return;
-retry:
-	new = kmem_cache_alloc(inode_entry_slab, GFP_NOFS);
-	if (!new) {
-		cond_resched();
-		goto retry;
-	}
+
+	new = f2fs_kmem_cache_alloc(inode_entry_slab, GFP_NOFS);
 	new->inode = inode;
 	INIT_LIST_HEAD(&new->list);
 
@@ -506,13 +498,9 @@ retry:
 void add_dirty_dir_inode(struct inode *inode)
 {
 	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
-	struct dir_inode_entry *new;
-retry:
-	new = kmem_cache_alloc(inode_entry_slab, GFP_NOFS);
-	if (!new) {
-		cond_resched();
-		goto retry;
-	}
+	struct dir_inode_entry *new =
+			f2fs_kmem_cache_alloc(inode_entry_slab, GFP_NOFS);
+
 	new->inode = inode;
 	INIT_LIST_HEAD(&new->list);
 
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 171c52fc95bb..29492754bd7d 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -18,6 +18,7 @@
 #include <linux/crc32.h>
 #include <linux/magic.h>
 #include <linux/kobject.h>
+#include <linux/sched.h>
 
 /*
  * For mount options
@@ -787,6 +788,20 @@ static inline struct kmem_cache *f2fs_kmem_cache_create(const char *name,
 	return kmem_cache_create(name, size, 0, SLAB_RECLAIM_ACCOUNT, ctor);
 }
 
+static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
+						gfp_t flags)
+{
+	void *entry;
+retry:
+	entry = kmem_cache_alloc(cachep, flags);
+	if (!entry) {
+		cond_resched();
+		goto retry;
+	}
+
+	return entry;
+}
+
 #define RAW_IS_INODE(p)	((p)->footer.nid == (p)->footer.ino)
 
 static inline bool IS_INODE(struct page *page)
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index fbad96846c7c..7914b92a6967 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -361,12 +361,8 @@ static void add_gc_inode(struct inode *inode, struct list_head *ilist)
 		iput(inode);
 		return;
 	}
-repeat:
-	new_ie = kmem_cache_alloc(winode_slab, GFP_NOFS);
-	if (!new_ie) {
-		cond_resched();
-		goto repeat;
-	}
+
+	new_ie = f2fs_kmem_cache_alloc(winode_slab, GFP_NOFS);
 	new_ie->inode = inode;
 	list_add_tail(&new_ie->list, ilist);
 }
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index ef80f791b02b..4fa3fd5def34 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1296,23 +1296,18 @@ static int add_free_nid(struct f2fs_nm_info *nm_i, nid_t nid, bool build)
 	if (nid == 0)
 		return 0;
 
-	if (!build)
-		goto retry;
-
-	/* do not add allocated nids */
-	read_lock(&nm_i->nat_tree_lock);
-	ne = __lookup_nat_cache(nm_i, nid);
-	if (ne && nat_get_blkaddr(ne) != NULL_ADDR)
-		allocated = true;
-	read_unlock(&nm_i->nat_tree_lock);
-	if (allocated)
-		return 0;
-retry:
-	i = kmem_cache_alloc(free_nid_slab, GFP_NOFS);
-	if (!i) {
-		cond_resched();
-		goto retry;
+	if (build) {
+		/* do not add allocated nids */
+		read_lock(&nm_i->nat_tree_lock);
+		ne = __lookup_nat_cache(nm_i, nid);
+		if (ne && nat_get_blkaddr(ne) != NULL_ADDR)
+			allocated = true;
+		read_unlock(&nm_i->nat_tree_lock);
+		if (allocated)
+			return 0;
 	}
+
+	i = f2fs_kmem_cache_alloc(free_nid_slab, GFP_NOFS);
 	i->nid = nid;
 	i->state = NID_NEW;
 
-- 
cgit 


From 4bd7145b194af7cd96fc56d2ebee583b3edf03d3 Mon Sep 17 00:00:00 2001
From: Yi Zhang <yizhang@marvell.com>
Date: Tue, 22 Oct 2013 18:44:32 +0800
Subject: regmap: irq: clear status when disable irq

clear the status bit if the mask register doesn't prevent
the chip level irq from being asserted

OR in the following sequence, there will be irq storm happens:
1) interrupt is triggered;
2) another thread disables it(the mask bit is set);
3) _Then_ the interrupt thread is not ACKed(the status bit is not cleared),
   and it's ignored;
4) if the irq is still asserted because of the uncleared status bit,
   the irq storm happens;

Signed-off-by: Yi Zhang <yizhang@marvell.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/base/regmap/regmap-irq.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/base/regmap/regmap-irq.c b/drivers/base/regmap/regmap-irq.c
index d10456ffd811..763c60d3d277 100644
--- a/drivers/base/regmap/regmap-irq.c
+++ b/drivers/base/regmap/regmap-irq.c
@@ -105,6 +105,22 @@ static void regmap_irq_sync_unlock(struct irq_data *data)
 					"Failed to sync wakes in %x: %d\n",
 					reg, ret);
 		}
+
+		if (!d->chip->init_ack_masked)
+			continue;
+		/*
+		 * Ack all the masked interrupts uncondictionly,
+		 * OR if there is masked interrupt which hasn't been Acked,
+		 * it'll be ignored in irq handler, then may introduce irq storm
+		 */
+		if (d->mask_buf[i] && d->chip->ack_base) {
+			reg = d->chip->ack_base +
+				(i * map->reg_stride * d->irq_reg_stride);
+			ret = regmap_write(map, reg, d->mask_buf[i]);
+			if (ret != 0)
+				dev_err(d->map->dev, "Failed to ack 0x%x: %d\n",
+					reg, ret);
+		}
 	}
 
 	if (d->chip->runtime_pm)
-- 
cgit 


From 1022cb6c35a8c815549566473504ac5feb0b5889 Mon Sep 17 00:00:00 2001
From: Jesse Brandeburg <jesse.brandeburg@intel.com>
Date: Sat, 28 Sep 2013 07:13:08 +0000
Subject: i40e: do not flush after re-enabling interrupts

Hot path doesn't need read-flush after interrupt enable, and this
flush really causes a lot of extra cpu utilization.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 3 ++-
 drivers/net/ethernet/intel/i40e/i40e_txrx.c | 2 --
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index fbe7fe2914a9..69ed8014afbd 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -2560,7 +2560,7 @@ void i40e_irq_dynamic_enable(struct i40e_vsi *vsi, int vector)
 	      I40E_PFINT_DYN_CTLN_CLEARPBA_MASK |
 	      (I40E_ITR_NONE << I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT);
 	wr32(hw, I40E_PFINT_DYN_CTLN(vector - 1), val);
-	i40e_flush(hw);
+	/* skip the flush */
 }
 
 /**
@@ -2709,6 +2709,7 @@ static int i40e_vsi_enable_irq(struct i40e_vsi *vsi)
 		i40e_irq_dynamic_enable_icr0(pf);
 	}
 
+	i40e_flush(&pf->hw);
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index dc89e72fd0f4..fbc40cd29d23 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -559,8 +559,6 @@ static void i40e_update_dynamic_itr(struct i40e_q_vector *q_vector)
 	i40e_set_new_dynamic_itr(&q_vector->tx);
 	if (old_itr != q_vector->tx.itr)
 		wr32(hw, reg_addr, q_vector->tx.itr);
-
-	i40e_flush(hw);
 }
 
 /**
-- 
cgit 


From 00403f0488e9082a3744376c821ad241cdc47e70 Mon Sep 17 00:00:00 2001
From: Mitch Williams <mitch.a.williams@intel.com>
Date: Sat, 28 Sep 2013 07:13:13 +0000
Subject: i40e: don't free nonexistent rings

Not all VSIs have rings! Check to see if rings were actually allocated before
freeing them.

This prevents a panic when tx_rings[0] is not allocated.

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 69ed8014afbd..a8c18faf1c54 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -5160,11 +5160,12 @@ static s32 i40e_vsi_clear_rings(struct i40e_vsi *vsi)
 {
 	int i;
 
-	for (i = 0; i < vsi->alloc_queue_pairs; i++) {
-		kfree_rcu(vsi->tx_rings[i], rcu);
-		vsi->tx_rings[i] = NULL;
-		vsi->rx_rings[i] = NULL;
-	}
+	if (vsi->tx_rings[0])
+		for (i = 0; i < vsi->alloc_queue_pairs; i++) {
+			kfree_rcu(vsi->tx_rings[i], rcu);
+			vsi->tx_rings[i] = NULL;
+			vsi->rx_rings[i] = NULL;
+		}
 
 	return 0;
 }
-- 
cgit 


From 13c60b99055a9e53543b7df7e4cb7eda3d6e5700 Mon Sep 17 00:00:00 2001
From: Mitch Williams <mitch.a.williams@intel.com>
Date: Sat, 28 Sep 2013 07:13:18 +0000
Subject: i40e: assign correct vector to VF

Correct math error when assigning MSI-X vectors to VFs. The vectors-per-vf
value reported by the hardware already conveniently reports one less than the
actual value.

Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 8967e58e2408..35f49090b3ec 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -251,7 +251,7 @@ static void i40e_config_irq_link_list(struct i40e_vf *vf, u16 vsi_idx,
 		reg_idx = I40E_VPINT_LNKLST0(vf->vf_id);
 	else
 		reg_idx = I40E_VPINT_LNKLSTN(
-			    ((pf->hw.func_caps.num_msix_vectors_vf - 1)
+					   (pf->hw.func_caps.num_msix_vectors_vf
 					      * vf->vf_id) + (vector_id - 1));
 
 	if (vecmap->rxq_map == 0 && vecmap->txq_map == 0) {
-- 
cgit 


From e71d1a59e757201454fd3cf66ddaceaf961bfb41 Mon Sep 17 00:00:00 2001
From: "wang.bo116@zte.com.cn" <wang.bo116@zte.com.cn>
Date: Fri, 16 Aug 2013 15:43:36 +0800
Subject: UBIFS: remove unnecessary code in ubifs_garbage_collect

In ubifs_garbage_collect,local variable "space_before" calculate twice. In
fact, at the beginning of the loop, there is no need to calculate this
variable. Calculate it before call "ubifs_garbage_collect_leb" is enough. This
patch just remove the unnecessary calculate code.

Signed-off-by: wang bo <wang.bo116@zte.com.cn>
Acked-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
---
 fs/ubifs/gc.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/ubifs/gc.c b/fs/ubifs/gc.c
index 76ca53cd3eee..9718da86ad01 100644
--- a/fs/ubifs/gc.c
+++ b/fs/ubifs/gc.c
@@ -668,8 +668,7 @@ int ubifs_garbage_collect(struct ubifs_info *c, int anyway)
 	ubifs_assert(!wbuf->used);
 
 	for (i = 0; ; i++) {
-		int space_before = c->leb_size - wbuf->offs - wbuf->used;
-		int space_after;
+		int space_before, space_after;
 
 		cond_resched();
 
-- 
cgit 


From d7c8f25965b6931de93f2b55b00f0f3fca995a21 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Thu, 17 Oct 2013 15:15:22 -0700
Subject: ARM: dts: Add missing reg, interrupt and dma entries for omap3

Looks like omap3 is still relying on hwmod data for some basic
device tree information. Let's add the information to omap3.dtsi
so we can remove the related hwmod data once omap3 is DT only.

Acked-by: Benoit Cousson <bcousson@baylibre.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap3.dtsi    | 49 +++++++++++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/omap36xx.dtsi |  4 ++++
 2 files changed, 53 insertions(+)

diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index 493b6d4373d1..27e0eb9a3cc7 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -40,6 +40,7 @@
 
 	pmu {
 		compatible = "arm,cortex-a8-pmu";
+		reg = <0x54000000 0x800000>;
 		interrupts = <3>;
 		ti,hwmods = "debugss";
 	};
@@ -74,6 +75,8 @@
 	 */
 	ocp {
 		compatible = "simple-bus";
+		reg = <0x68000000 0x10000>;
+		interrupts = <9 10>;
 		#address-cells = <1>;
 		#size-cells = <1>;
 		ranges;
@@ -192,24 +195,40 @@
 
 		uart1: serial@4806a000 {
 			compatible = "ti,omap3-uart";
+			reg = <0x4806a000 0x2000>;
+			interrupts = <72>;
+			dmas = <&sdma 49 &sdma 50>;
+			dma-names = "tx", "rx";
 			ti,hwmods = "uart1";
 			clock-frequency = <48000000>;
 		};
 
 		uart2: serial@4806c000 {
 			compatible = "ti,omap3-uart";
+			reg = <0x4806c000 0x400>;
+			interrupts = <73>;
+			dmas = <&sdma 51 &sdma 52>;
+			dma-names = "tx", "rx";
 			ti,hwmods = "uart2";
 			clock-frequency = <48000000>;
 		};
 
 		uart3: serial@49020000 {
 			compatible = "ti,omap3-uart";
+			reg = <0x49020000 0x400>;
+			interrupts = <74>;
+			dmas = <&sdma 53 &sdma 54>;
+			dma-names = "tx", "rx";
 			ti,hwmods = "uart3";
 			clock-frequency = <48000000>;
 		};
 
 		i2c1: i2c@48070000 {
 			compatible = "ti,omap3-i2c";
+			reg = <0x48070000 0x80>;
+			interrupts = <56>;
+			dmas = <&sdma 27 &sdma 28>;
+			dma-names = "tx", "rx";
 			#address-cells = <1>;
 			#size-cells = <0>;
 			ti,hwmods = "i2c1";
@@ -217,6 +236,10 @@
 
 		i2c2: i2c@48072000 {
 			compatible = "ti,omap3-i2c";
+			reg = <0x48072000 0x80>;
+			interrupts = <57>;
+			dmas = <&sdma 29 &sdma 30>;
+			dma-names = "tx", "rx";
 			#address-cells = <1>;
 			#size-cells = <0>;
 			ti,hwmods = "i2c2";
@@ -224,6 +247,10 @@
 
 		i2c3: i2c@48060000 {
 			compatible = "ti,omap3-i2c";
+			reg = <0x48060000 0x80>;
+			interrupts = <61>;
+			dmas = <&sdma 25 &sdma 26>;
+			dma-names = "tx", "rx";
 			#address-cells = <1>;
 			#size-cells = <0>;
 			ti,hwmods = "i2c3";
@@ -231,6 +258,8 @@
 
 		mcspi1: spi@48098000 {
 			compatible = "ti,omap2-mcspi";
+			reg = <0x48098000 0x100>;
+			interrupts = <65>;
 			#address-cells = <1>;
 			#size-cells = <0>;
 			ti,hwmods = "mcspi1";
@@ -249,6 +278,8 @@
 
 		mcspi2: spi@4809a000 {
 			compatible = "ti,omap2-mcspi";
+			reg = <0x4809a000 0x100>;
+			interrupts = <66>;
 			#address-cells = <1>;
 			#size-cells = <0>;
 			ti,hwmods = "mcspi2";
@@ -262,6 +293,8 @@
 
 		mcspi3: spi@480b8000 {
 			compatible = "ti,omap2-mcspi";
+			reg = <0x480b8000 0x100>;
+			interrupts = <91>;
 			#address-cells = <1>;
 			#size-cells = <0>;
 			ti,hwmods = "mcspi3";
@@ -275,6 +308,8 @@
 
 		mcspi4: spi@480ba000 {
 			compatible = "ti,omap2-mcspi";
+			reg = <0x480ba000 0x100>;
+			interrupts = <48>;
 			#address-cells = <1>;
 			#size-cells = <0>;
 			ti,hwmods = "mcspi4";
@@ -283,8 +318,17 @@
 			dma-names = "tx0", "rx0";
 		};
 
+		hdqw1w: 1w@480b2000 {
+			compatible = "ti,omap3-1w";
+			reg = <0x480b2000 0x1000>;
+			interrupts = <58>;
+			ti,hwmods = "hdq1w";
+		};
+
 		mmc1: mmc@4809c000 {
 			compatible = "ti,omap3-hsmmc";
+			reg = <0x4809c000 0x200>;
+			interrupts = <83>;
 			ti,hwmods = "mmc1";
 			ti,dual-volt;
 			dmas = <&sdma 61>, <&sdma 62>;
@@ -293,6 +337,8 @@
 
 		mmc2: mmc@480b4000 {
 			compatible = "ti,omap3-hsmmc";
+			reg = <0x480b4000 0x200>;
+			interrupts = <86>;
 			ti,hwmods = "mmc2";
 			dmas = <&sdma 47>, <&sdma 48>;
 			dma-names = "tx", "rx";
@@ -300,6 +346,8 @@
 
 		mmc3: mmc@480ad000 {
 			compatible = "ti,omap3-hsmmc";
+			reg = <0x480ad000 0x200>;
+			interrupts = <94>;
 			ti,hwmods = "mmc3";
 			dmas = <&sdma 77>, <&sdma 78>;
 			dma-names = "tx", "rx";
@@ -307,6 +355,7 @@
 
 		wdt2: wdt@48314000 {
 			compatible = "ti,omap3-wdt";
+			reg = <0x48314000 0x80>;
 			ti,hwmods = "wd_timer2";
 		};
 
diff --git a/arch/arm/boot/dts/omap36xx.dtsi b/arch/arm/boot/dts/omap36xx.dtsi
index f8b3765eb9be..380c22eb468e 100644
--- a/arch/arm/boot/dts/omap36xx.dtsi
+++ b/arch/arm/boot/dts/omap36xx.dtsi
@@ -31,6 +31,10 @@
 	ocp {
 		uart4: serial@49042000 {
 			compatible = "ti,omap3-uart";
+			reg = <0x49042000 0x400>;
+			interrupts = <80>;
+			dmas = <&sdma 81 &sdma 82>;
+			dma-names = "tx", "rx";
 			ti,hwmods = "uart4";
 			clock-frequency = <48000000>;
 		};
-- 
cgit 


From 958a3e3b14f3f7b2dcc35fad0b8695d9bcd9fbd0 Mon Sep 17 00:00:00 2001
From: Shannon Nelson <shannon.nelson@intel.com>
Date: Sat, 28 Sep 2013 07:13:28 +0000
Subject: i40e: fixup legacy interrupt handling

There were a number of little bugs in the error handling of irq setup, most of
which ended up panicing the kernel, and are addressed by this patch, along with
a couple formatting issues.

Legacy interrupts (including MSI) are used only in the case of failure to
allocate MSI-X interrupts.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index a8c18faf1c54..270190ad7faa 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -4615,7 +4615,8 @@ static void i40e_fdir_setup(struct i40e_pf *pf)
 	bool new_vsi = false;
 	int err, i;
 
-	if (!(pf->flags & (I40E_FLAG_FDIR_ENABLED|I40E_FLAG_FDIR_ATR_ENABLED)))
+	if (!(pf->flags & (I40E_FLAG_FDIR_ENABLED |
+			   I40E_FLAG_FDIR_ATR_ENABLED)))
 		return;
 
 	pf->atr_sample_rate = I40E_DEFAULT_ATR_SAMPLE_RATE;
@@ -5435,7 +5436,8 @@ static void i40e_init_interrupt_scheme(struct i40e_pf *pf)
 	if (pf->flags & I40E_FLAG_MSIX_ENABLED) {
 		err = i40e_init_msix(pf);
 		if (err) {
-			pf->flags &= ~(I40E_FLAG_RSS_ENABLED	   |
+			pf->flags &= ~(I40E_FLAG_MSIX_ENABLED	   |
+					I40E_FLAG_RSS_ENABLED	   |
 					I40E_FLAG_MQ_ENABLED	   |
 					I40E_FLAG_DCB_ENABLED	   |
 					I40E_FLAG_SRIOV_ENABLED	   |
@@ -5450,14 +5452,17 @@ static void i40e_init_interrupt_scheme(struct i40e_pf *pf)
 
 	if (!(pf->flags & I40E_FLAG_MSIX_ENABLED) &&
 	    (pf->flags & I40E_FLAG_MSI_ENABLED)) {
+		dev_info(&pf->pdev->dev, "MSIX not available, trying MSI\n");
 		err = pci_enable_msi(pf->pdev);
 		if (err) {
-			dev_info(&pf->pdev->dev,
-				 "MSI init failed (%d), trying legacy.\n", err);
+			dev_info(&pf->pdev->dev, "MSI init failed - %d\n", err);
 			pf->flags &= ~I40E_FLAG_MSI_ENABLED;
 		}
 	}
 
+	if (!(pf->flags & (I40E_FLAG_MSIX_ENABLED | I40E_FLAG_MSI_ENABLED)))
+		dev_info(&pf->pdev->dev, "MSIX and MSI not available, falling back to Legacy IRQ\n");
+
 	/* track first vector for misc interrupts */
 	err = i40e_get_lump(pf, pf->irq_pile, 1, I40E_PILE_VALID_BIT-1);
 }
@@ -6110,8 +6115,9 @@ static int i40e_vsi_setup_vectors(struct i40e_vsi *vsi)
 		goto vector_setup_out;
 	}
 
-	vsi->base_vector = i40e_get_lump(pf, pf->irq_pile,
-					 vsi->num_q_vectors, vsi->idx);
+	if (vsi->num_q_vectors)
+		vsi->base_vector = i40e_get_lump(pf, pf->irq_pile,
+						 vsi->num_q_vectors, vsi->idx);
 	if (vsi->base_vector < 0) {
 		dev_info(&pf->pdev->dev,
 			 "failed to get q tracking for VSI %d, err=%d\n",
-- 
cgit 


From 6301002f8de0ae5b1e6044c422445b1a34cc6270 Mon Sep 17 00:00:00 2001
From: Jesse Brandeburg <jesse.brandeburg@intel.com>
Date: Sat, 28 Sep 2013 07:13:33 +0000
Subject: i40e: debugfs fixups

debugfs fixes for issues found by coverity.

This issue was identified by the coverity checker, reported by Hannes Frederic
Sowa.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Hannes Frederic Sowa <hannes@stressinduktion.org>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 38 ++++++++++++++++++--------
 1 file changed, 26 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 19e248ff6c77..304f39d4eb36 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -2019,21 +2019,35 @@ static const struct file_operations i40e_dbg_netdev_ops_fops = {
  **/
 void i40e_dbg_pf_init(struct i40e_pf *pf)
 {
-	struct dentry *pfile __attribute__((unused));
+	struct dentry *pfile;
 	const char *name = pci_name(pf->pdev);
+	const struct device *dev = &pf->pdev->dev;
 
 	pf->i40e_dbg_pf = debugfs_create_dir(name, i40e_dbg_root);
-	if (pf->i40e_dbg_pf) {
-		pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf,
-					    pf, &i40e_dbg_command_fops);
-		pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf,
-					    &i40e_dbg_dump_fops);
-		pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf,
-					    pf, &i40e_dbg_netdev_ops_fops);
-	} else {
-		dev_info(&pf->pdev->dev,
-			 "debugfs entry for %s failed\n", name);
-	}
+	if (!pf->i40e_dbg_pf)
+		return;
+
+	pfile = debugfs_create_file("command", 0600, pf->i40e_dbg_pf, pf,
+				    &i40e_dbg_command_fops);
+	if (!pfile)
+		goto create_failed;
+
+	pfile = debugfs_create_file("dump", 0600, pf->i40e_dbg_pf, pf,
+				    &i40e_dbg_dump_fops);
+	if (!pfile)
+		goto create_failed;
+
+	pfile = debugfs_create_file("netdev_ops", 0600, pf->i40e_dbg_pf, pf,
+				    &i40e_dbg_netdev_ops_fops);
+	if (!pfile)
+		goto create_failed;
+
+	return;
+
+create_failed:
+	dev_info(dev, "debugfs dir/file for %s failed\n", name);
+	debugfs_remove_recursive(pf->i40e_dbg_pf);
+	return;
 }
 
 /**
-- 
cgit 


From 520dfd8b09dc9f4da6499b93ef0db7166746e8c3 Mon Sep 17 00:00:00 2001
From: Jesse Brandeburg <jesse.brandeburg@intel.com>
Date: Sat, 28 Sep 2013 07:13:39 +0000
Subject: i40e: clamp debugfs nvm read command

This issue was identified by the coverity checker where we were
not checking the upper limit on reads, reported by Hannes
Frederic Sowa.

Implement more specific limits on reads (min 1k, max 4k)

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Hannes Frederic Sowa <hannes@stressinduktion.org>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 304f39d4eb36..c80fcb4d8ff8 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -1742,11 +1742,13 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 			goto command_write_done;
 		}
 
-		/* Read at least 512 words */
-		if (buffer_len == 0)
-			buffer_len = 512;
+		/* set the max length */
+		buffer_len = min_t(u16, buffer_len, I40E_MAX_AQ_BUF_SIZE/2);
 
 		bytes = 2 * buffer_len;
+
+		/* read at least 1k bytes, no more than 4kB */
+		bytes = clamp(bytes, (u16)1024, (u16)I40E_MAX_AQ_BUF_SIZE);
 		buff = kzalloc(bytes, GFP_KERNEL);
 		if (!buff)
 			goto command_write_done;
-- 
cgit 


From c351e29018eeb2fa3151e09a9102e223519c34d5 Mon Sep 17 00:00:00 2001
From: Mark Jackson <mpfj-list@newflow.co.uk>
Date: Fri, 4 Oct 2013 09:15:01 +0100
Subject: ARM: dts: Add support for Newflow NanoBone board

NanoBone Specification:
-----------------------
CPU:
  TI AM335x

Memory:
  256MB DDR3
  128MB NOR flash
  128KB FRAM

Ethernet:
  2 x 10/100 connected to SMSC LAN8710 PHY

USB:
  1 x USB2.0 Type A

I2C:
  2Kbit EEPROM (Microchip 24AA02)
  RTC (Maxim DS1338)
  GPIO Expander (Microchip MCP23017)

Expansion connector:
  6 x UART
  1 x MMC/SD
  1 x USB2.0

Signed-off-by: Mark Jackson <mpfj@newflow.co.uk>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 MAINTAINERS                       |   6 +
 arch/arm/boot/dts/Makefile        |   1 +
 arch/arm/boot/dts/am335x-nano.dts | 431 ++++++++++++++++++++++++++++++++++++++
 3 files changed, 438 insertions(+)
 create mode 100644 arch/arm/boot/dts/am335x-nano.dts

diff --git a/MAINTAINERS b/MAINTAINERS
index 8a0cbf3cf2c8..ba09af9391a0 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6088,6 +6088,12 @@ L:	linux-omap@vger.kernel.org
 S:	Maintained
 F:	drivers/gpio/gpio-omap.c
 
+OMAP/NEWFLOW NANOBONE MACHINE SUPPORT
+M:	Mark Jackson <mpfj@newflow.co.uk>
+L:	linux-omap@vger.kernel.org
+S:	Maintained
+F:	arch/arm/boot/dts/am335x-nano.dts
+
 OMFS FILESYSTEM
 M:	Bob Copeland <me@bobcopeland.com>
 L:	linux-karma-devel@lists.sourceforge.net
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 9df7d2c15e7d..37c6ec974134 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -188,6 +188,7 @@ dtb-$(CONFIG_ARCH_OMAP2PLUS) += omap2420-h4.dtb \
 	am335x-evmsk.dtb \
 	am335x-bone.dtb \
 	am335x-boneblack.dtb \
+	am335x-nano.dtb \
 	am335x-base0033.dtb \
 	am3517-evm.dtb \
 	am3517_mt_ventoux.dtb \
diff --git a/arch/arm/boot/dts/am335x-nano.dts b/arch/arm/boot/dts/am335x-nano.dts
new file mode 100644
index 000000000000..9907b494b99c
--- /dev/null
+++ b/arch/arm/boot/dts/am335x-nano.dts
@@ -0,0 +1,431 @@
+/*
+ * Copyright (C) 2013 Newflow Ltd - http://www.newflow.co.uk/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+/dts-v1/;
+
+#include "am33xx.dtsi"
+
+/ {
+	model = "Newflow AM335x NanoBone";
+	compatible = "ti,am33xx";
+
+	cpus {
+		cpu@0 {
+			cpu0-supply = <&dcdc2_reg>;
+		};
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x10000000>; /* 256 MB */
+	};
+
+	leds {
+		compatible = "gpio-leds";
+
+		led@0 {
+			label = "nanobone:green:usr1";
+			gpios = <&gpio1 5 0>;
+			default-state = "off";
+		};
+	};
+};
+
+&am33xx_pinmux {
+	pinctrl-names = "default";
+	pinctrl-0 = <&misc_pins>;
+
+	misc_pins: misc_pins {
+		pinctrl-single,pins = <
+			0x15c (PIN_OUTPUT | MUX_MODE7)	/* spi0_cs0.gpio0_5 */
+		>;
+	};
+
+	gpmc_pins: gpmc_pins {
+		pinctrl-single,pins = <
+			0x0 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad0.gpmc_ad0 */
+			0x4 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad1.gpmc_ad1 */
+			0x8 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad2.gpmc_ad2 */
+			0xc (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad3.gpmc_ad3 */
+			0x10 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad4.gpmc_ad4 */
+			0x14 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad5.gpmc_ad5 */
+			0x18 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad6.gpmc_ad6 */
+			0x1c (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad7.gpmc_ad7 */
+			0x20 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad8.gpmc_ad8 */
+			0x24 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad9.gpmc_ad9 */
+			0x28 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad10.gpmc_ad10 */
+			0x2c (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad11.gpmc_ad11 */
+			0x30 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad12.gpmc_ad12 */
+			0x34 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad13.gpmc_ad13 */
+			0x38 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad14.gpmc_ad14 */
+			0x3c (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_ad15.gpmc_ad15 */
+
+			0x70 (PIN_INPUT_PULLUP | MUX_MODE0)	/* gpmc_wait0.gpmc_wait0 */
+			0x7c (PIN_OUTPUT | MUX_MODE0)		/* gpmc_csn0.gpmc_csn0 */
+			0x80 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_csn1.gpmc_csn1 */
+			0x84 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_csn2.gpmc_csn2 */
+			0x88 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_csn3.gpmc_csn3 */
+
+			0x90 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_advn_ale.gpmc_advn_ale */
+			0x94 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_oen_ren.gpmc_oen_ren */
+			0x98 (PIN_OUTPUT | MUX_MODE0)		/* gpmc_wen.gpmc_wen */
+			0x9c (PIN_OUTPUT | MUX_MODE0)		/* gpmc_ben0_cle.gpmc_ben0_cle */
+
+			0xa4 (PIN_OUTPUT | MUX_MODE1)		/* lcd_data1.gpmc_a1 */
+			0xa8 (PIN_OUTPUT | MUX_MODE1)		/* lcd_data2.gpmc_a2 */
+			0xac (PIN_OUTPUT | MUX_MODE1)		/* lcd_data3.gpmc_a3 */
+			0xb0 (PIN_OUTPUT | MUX_MODE1)		/* lcd_data4.gpmc_a4 */
+			0xb4 (PIN_OUTPUT | MUX_MODE1)		/* lcd_data5.gpmc_a5 */
+			0xb8 (PIN_OUTPUT | MUX_MODE1)		/* lcd_data6.gpmc_a6 */
+			0xbc (PIN_OUTPUT | MUX_MODE1)		/* lcd_data7.gpmc_a7 */
+
+			0xe0 (PIN_OUTPUT | MUX_MODE1)		/* lcd_vsync.gpmc_a8 */
+			0xe4 (PIN_OUTPUT | MUX_MODE1)		/* lcd_hsync.gpmc_a9 */
+			0xe8 (PIN_OUTPUT | MUX_MODE1)		/* lcd_pclk.gpmc_a10 */
+		>;
+	};
+
+	i2c0_pins: i2c0_pins {
+		pinctrl-single,pins = <
+			0x188 (PIN_INPUT_PULLDOWN | MUX_MODE0)	/* i2c0_sda.i2c0_sda */
+			0x18c (PIN_INPUT_PULLDOWN | MUX_MODE0)	/* i2c0_scl.i2c0_scl */
+		>;
+	};
+
+	uart0_pins: uart0_pins {
+		pinctrl-single,pins = <
+			0x170 (PIN_INPUT_PULLUP | MUX_MODE0)	/* uart0_rxd.uart0_rxd */
+			0x174 (PIN_OUTPUT | MUX_MODE0)		/* uart0_txd.uart0_txd */
+		>;
+	};
+
+	uart1_pins: uart1_pins {
+		pinctrl-single,pins = <
+			0x178 (PIN_OUTPUT | MUX_MODE7)		/* uart1_ctsn.uart1_ctsn */
+			0x17c (PIN_OUTPUT | MUX_MODE7)		/* uart1_rtsn.uart1_rtsn */
+			0x180 (PIN_INPUT_PULLUP | MUX_MODE0)	/* uart1_rxd.uart1_rxd */
+			0x184 (PIN_OUTPUT | MUX_MODE0)		/* uart1_txd.uart1_txd */
+		>;
+	};
+
+	uart2_pins: uart2_pins {
+		pinctrl-single,pins = <
+			0xc0 (PIN_INPUT_PULLUP | MUX_MODE7)	/* lcd_data8.gpio2[14] */
+			0xc4 (PIN_OUTPUT | MUX_MODE7)		/* lcd_data9.gpio2[15] */
+			0x150 (PIN_INPUT | MUX_MODE1)		/* spi0_sclk.uart2_rxd */
+			0x154 (PIN_OUTPUT | MUX_MODE1)		/* spi0_d0.uart2_txd */
+		>;
+	};
+
+	uart3_pins: uart3_pins {
+		pinctrl-single,pins = <
+			0xc8 (PIN_INPUT_PULLUP | MUX_MODE6)	/* lcd_data10.uart3_ctsn */
+			0xcc (PIN_OUTPUT | MUX_MODE6)		/* lcd_data11.uart3_rtsn */
+			0x160 (PIN_INPUT | MUX_MODE1)		/* spi0_cs1.uart3_rxd */
+			0x164 (PIN_OUTPUT | MUX_MODE1)		/* ecap0_in_pwm0_out.uart3_txd */
+		>;
+	};
+
+	uart4_pins: uart4_pins {
+		pinctrl-single,pins = <
+			0xd0 (PIN_INPUT_PULLUP | MUX_MODE6)	/* lcd_data12.uart4_ctsn */
+			0xd4 (PIN_OUTPUT | MUX_MODE6)		/* lcd_data13.uart4_rtsn */
+			0x168 (PIN_INPUT | MUX_MODE1)		/* uart0_ctsn.uart4_rxd */
+			0x16c (PIN_OUTPUT | MUX_MODE1)		/* uart0_rtsn.uart4_txd */
+		>;
+	};
+
+	uart5_pins: uart5_pins {
+		pinctrl-single,pins = <
+			0xd8 (PIN_INPUT | MUX_MODE4)		/* lcd_data14.uart5_rxd */
+			0x144 (PIN_OUTPUT | MUX_MODE3)		/* rmiii1_refclk.uart5_txd */
+		>;
+	};
+
+	mmc1_pins: mmc1_pins {
+		pinctrl-single,pins = <
+			0xf0 (PIN_INPUT_PULLUP | MUX_MODE0)	/* mmc0_dat0.mmc0_dat0 */
+			0xf4 (PIN_INPUT_PULLUP | MUX_MODE0)	/* mmc0_dat1.mmc0_dat1 */
+			0xf8 (PIN_INPUT_PULLUP | MUX_MODE0)	/* mmc0_dat2.mmc0_dat2 */
+			0xfc (PIN_INPUT_PULLUP | MUX_MODE0)	/* mmc0_dat3.mmc0_dat3 */
+			0x100 (PIN_INPUT_PULLUP | MUX_MODE0)	/* mmc0_clk.mmc0_clk */
+			0x104 (PIN_INPUT_PULLUP | MUX_MODE0)	/* mmc0_cmd.mmc0_cmd */
+			0x1e8 (PIN_INPUT_PULLUP | MUX_MODE7)	/* emu1.gpio3[8] */
+			0x1a0 (PIN_INPUT_PULLUP | MUX_MODE7)	/* mcasp0_aclkr.gpio3[18] */
+		>;
+	};
+};
+
+&uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart0_pins>;
+	status = "okay";
+};
+
+&uart1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart1_pins>;
+	status = "okay";
+	rts-gpio = <&gpio0 13 GPIO_ACTIVE_HIGH>;
+	rs485-rts-active-high;
+	rs485-rx-during-tx;
+	rs485-rts-delay = <1 1>;
+	linux,rs485-enabled-at-boot-time;
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart2_pins>;
+	status = "okay";
+	rts-gpio = <&gpio2 15 GPIO_ACTIVE_HIGH>;
+	rs485-rts-active-high;
+	rs485-rts-delay = <1 1>;
+	linux,rs485-enabled-at-boot-time;
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart3_pins>;
+	status = "okay";
+};
+
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart4_pins>;
+	status = "okay";
+};
+
+&uart5 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart5_pins>;
+	status = "okay";
+};
+
+&i2c0 {
+	status = "okay";
+	pinctrl-names = "default";
+	clock-frequency = <400000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c0_pins>;
+
+	gpio@20 {
+		compatible = "mcp,mcp23017";
+		reg = <0x20>;
+	};
+
+	tps: tps@24 {
+		reg = <0x24>;
+	};
+
+	eeprom@53 {
+		compatible = "mcp,24c02";
+		reg = <0x53>;
+		pagesize = <8>;
+	};
+
+	rtc@68 {
+		compatible = "dallas,ds1307";
+		reg = <0x68>;
+	};
+};
+
+&elm {
+	status = "okay";
+};
+
+&gpmc {
+	compatible = "ti,am3352-gpmc";
+	ti,hwmods = "gpmc";
+	status = "okay";
+	gpmc,num-waitpins = <2>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&gpmc_pins>;
+
+	#address-cells = <2>;
+	#size-cells = <1>;
+	ranges = <0 0 0x08000000 0x08000000>;	/* CS0: NOR 128M */
+
+	nor@0,0 {
+		reg = <0 0x00000000 0x08000000>;
+		compatible = "cfi-flash";
+		linux,mtd-name = "spansion,s29gl010p11t";
+		bank-width = <2>;
+
+		gpmc,mux-add-data = <2>;
+
+		gpmc,sync-clk-ps = <0>;
+		gpmc,cs-on-ns = <0>;
+		gpmc,cs-rd-off-ns = <160>;
+		gpmc,cs-wr-off-ns = <160>;
+		gpmc,adv-on-ns = <10>;
+		gpmc,adv-rd-off-ns = <30>;
+		gpmc,adv-wr-off-ns = <30>;
+		gpmc,oe-on-ns = <40>;
+		gpmc,oe-off-ns = <160>;
+		gpmc,we-on-ns = <40>;
+		gpmc,we-off-ns = <160>;
+		gpmc,rd-cycle-ns = <160>;
+		gpmc,wr-cycle-ns = <160>;
+		gpmc,access-ns = <150>;
+		gpmc,page-burst-access-ns = <10>;
+		gpmc,cycle2cycle-samecsen;
+		gpmc,cycle2cycle-delay-ns = <20>;
+		gpmc,wr-data-mux-bus-ns = <70>;
+		gpmc,wr-access-ns = <80>;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		/*
+		MTD partition table
+		===================
+		+------------+-->0x00000000-> U-Boot start
+		|            |
+		|            |-->0x000BFFFF-> U-Boot end
+		|            |-->0x000C0000-> ENV1 start
+		|            |
+		|            |-->0x000DFFFF-> ENV1 end
+		|            |-->0x000E0000-> ENV2 start
+		|            |
+		|            |-->0x000FFFFF-> ENV2 end
+		|            |-->0x00100000-> Kernel start
+		|            |
+		|            |-->0x004FFFFF-> Kernel end
+		|            |-->0x00500000-> File system start
+		|            |
+		|            |-->0x014FFFFF-> File system end
+		|            |-->0x01500000-> User data start
+		|            |
+		|            |-->0x03FFFFFF-> User data end
+		|            |-->0x04000000-> Data storage start
+		|            |
+		+------------+-->0x08000000-> NOR end (Free end)
+		*/
+		partition@0 {
+			label = "boot";
+			reg = <0x00000000 0x000c0000>; /* 768KB */
+		};
+
+		partition@1 {
+			label = "env1";
+			reg = <0x000c0000 0x00020000>; /* 128KB */
+		};
+
+		partition@2 {
+			label = "env2";
+			reg = <0x000e0000 0x00020000>; /* 128KB */
+		};
+
+		partition@3 {
+			label = "kernel";
+			reg = <0x00100000 0x00400000>; /* 4MB */
+		};
+
+		partition@4 {
+			label = "rootfs";
+			reg = <0x00500000 0x01000000>; /* 16MB */
+		};
+
+		partition@5 {
+			label = "user";
+			reg = <0x01500000 0x02b00000>; /* 43MB */
+		};
+
+		partition@6 {
+			label = "data";
+			reg = <0x04000000 0x04000000>; /* 64MB */
+		};
+	};
+};
+
+&mac {
+	dual_emac = <1>;
+};
+
+&cpsw_emac0 {
+	phy_id = <&davinci_mdio>, <0>;
+	dual_emac_res_vlan = <1>;
+};
+
+&cpsw_emac1 {
+	phy_id = <&davinci_mdio>, <1>;
+	dual_emac_res_vlan = <2>;
+};
+
+&mmc1 {
+	status = "okay";
+	vmmc-supply = <&ldo4_reg>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc1_pins>;
+	bus-width = <4>;
+	cd-gpios = <&gpio3 8 0>;
+	wp-gpios = <&gpio3 18 0>;
+};
+
+#include "tps65217.dtsi"
+
+&tps {
+	regulators {
+		dcdc1_reg: regulator@0 {
+			/* +1.5V voltage with ±4% tolerance */
+			regulator-min-microvolt = <1450000>;
+			regulator-max-microvolt = <1550000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+
+		dcdc2_reg: regulator@1 {
+			/* VDD_MPU voltage limits 0.95V - 1.1V with ±4% tolerance */
+			regulator-name = "vdd_mpu";
+			regulator-min-microvolt = <915000>;
+			regulator-max-microvolt = <1140000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+
+		dcdc3_reg: regulator@2 {
+			/* VDD_CORE voltage limits 0.95V - 1.1V with ±4% tolerance */
+			regulator-name = "vdd_core";
+			regulator-min-microvolt = <915000>;
+			regulator-max-microvolt = <1140000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+
+		ldo1_reg: regulator@3 {
+			/* +1.8V voltage with ±4% tolerance */
+			regulator-min-microvolt = <1750000>;
+			regulator-max-microvolt = <1870000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+
+		ldo2_reg: regulator@4 {
+			/* +3.3V voltage with ±4% tolerance */
+			regulator-min-microvolt = <3175000>;
+			regulator-max-microvolt = <3430000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+
+		ldo3_reg: regulator@5 {
+			/* +1.8V voltage with ±4% tolerance */
+			regulator-min-microvolt = <1750000>;
+			regulator-max-microvolt = <1870000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+
+		ldo4_reg: regulator@6 {
+			/* +3.3V voltage with ±4% tolerance */
+			regulator-min-microvolt = <3175000>;
+			regulator-max-microvolt = <3430000>;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+	};
+};
-- 
cgit 


From 004173cbbf933b8122aa5bea4211302ca79a0bb0 Mon Sep 17 00:00:00 2001
From: Jesse Brandeburg <jesse.brandeburg@intel.com>
Date: Sat, 28 Sep 2013 07:13:44 +0000
Subject: i40e: fix use of untrusted scalar value warning

This is a fix for an issue reported by coverity, reported by
Hannes Frederic Sowa.

I'm unable to test if this patch actually fixes the coverity
reported issue, feedback is welcome.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Hannes Frederic Sowa <hannes@stressinduktion.org>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 34 ++++++++++++++------------
 1 file changed, 18 insertions(+), 16 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index c80fcb4d8ff8..387bf94495f0 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -151,9 +151,7 @@ static ssize_t i40e_dbg_dump_write(struct file *filp,
 				   size_t count, loff_t *ppos)
 {
 	struct i40e_pf *pf = filp->private_data;
-	char dump_request_buf[16];
 	bool seid_found = false;
-	int bytes_not_copied;
 	long seid = -1;
 	int buflen = 0;
 	int i, ret;
@@ -163,21 +161,12 @@ static ssize_t i40e_dbg_dump_write(struct file *filp,
 	/* don't allow partial writes */
 	if (*ppos != 0)
 		return 0;
-	if (count >= sizeof(dump_request_buf))
-		return -ENOSPC;
-
-	bytes_not_copied = copy_from_user(dump_request_buf, buffer, count);
-	if (bytes_not_copied < 0)
-		return bytes_not_copied;
-	if (bytes_not_copied > 0)
-		count -= bytes_not_copied;
-	dump_request_buf[count] = '\0';
 
 	/* decode the SEID given to be dumped */
-	ret = kstrtol(dump_request_buf, 0, &seid);
-	if (ret < 0) {
-		dev_info(&pf->pdev->dev, "bad seid value '%s'\n",
-			 dump_request_buf);
+	ret = kstrtol_from_user(buffer, count, 0, &seid);
+
+	if (ret) {
+		dev_info(&pf->pdev->dev, "bad seid value\n");
 	} else if (seid == 0) {
 		seid_found = true;
 
@@ -1023,11 +1012,11 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 				      size_t count, loff_t *ppos)
 {
 	struct i40e_pf *pf = filp->private_data;
+	char *cmd_buf, *cmd_buf_tmp;
 	int bytes_not_copied;
 	struct i40e_vsi *vsi;
 	u8 *print_buf_start;
 	u8 *print_buf;
-	char *cmd_buf;
 	int vsi_seid;
 	int veb_seid;
 	int cnt;
@@ -1046,6 +1035,12 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 		count -= bytes_not_copied;
 	cmd_buf[count] = '\0';
 
+	cmd_buf_tmp = strchr(cmd_buf, '\n');
+	if (cmd_buf_tmp) {
+		*cmd_buf_tmp = '\0';
+		count = cmd_buf_tmp - cmd_buf + 1;
+	}
+
 	print_buf_start = kzalloc(I40E_MAX_DEBUG_OUT_BUFFER, GFP_KERNEL);
 	if (!print_buf_start)
 		goto command_write_done;
@@ -1900,6 +1895,7 @@ static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
 	struct i40e_pf *pf = filp->private_data;
 	int bytes_not_copied;
 	struct i40e_vsi *vsi;
+	char *buf_tmp;
 	int vsi_seid;
 	int i, cnt;
 
@@ -1918,6 +1914,12 @@ static ssize_t i40e_dbg_netdev_ops_write(struct file *filp,
 		count -= bytes_not_copied;
 	i40e_dbg_netdev_ops_buf[count] = '\0';
 
+	buf_tmp = strchr(i40e_dbg_netdev_ops_buf, '\n');
+	if (buf_tmp) {
+		*buf_tmp = '\0';
+		count = buf_tmp - i40e_dbg_netdev_ops_buf + 1;
+	}
+
 	if (strncmp(i40e_dbg_netdev_ops_buf, "tx_timeout", 10) == 0) {
 		cnt = sscanf(&i40e_dbg_netdev_ops_buf[11], "%i", &vsi_seid);
 		if (cnt != 1) {
-- 
cgit 


From 0976a01610e76064bff95704573b3a9c747bca4f Mon Sep 17 00:00:00 2001
From: Jesse Brandeburg <jesse.brandeburg@intel.com>
Date: Sat, 28 Sep 2013 07:13:49 +0000
Subject: i40e: fix sign extension issue

This is a fix for an issue reported by coverity, reported
by Hannes Frederic Sowa.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
CC: Hannes Frederic Sowa <hannes@stressinduktion.org>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_txrx.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index fbc40cd29d23..8fc313c2a2e7 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -99,9 +99,9 @@ int i40e_program_fdir_filter(struct i40e_fdir_data *fdir_data,
 					   << I40E_TXD_FLTR_QW0_DEST_VSI_SHIFT);
 	else
 		fdir_desc->qindex_flex_ptype_vsi |=
-					    cpu_to_le32((fdir_data->dest_vsi
-					    << I40E_TXD_FLTR_QW0_DEST_VSI_SHIFT)
-					    & I40E_TXD_FLTR_QW0_DEST_VSI_MASK);
+			cpu_to_le32((((u32)fdir_data->dest_vsi) <<
+					  I40E_TXD_FLTR_QW0_DEST_VSI_SHIFT) &
+				    I40E_TXD_FLTR_QW0_DEST_VSI_MASK);
 
 	fdir_desc->dtype_cmd_cntindex =
 				    cpu_to_le32(I40E_TX_DESC_DTYPE_FILTER_PROG);
@@ -127,9 +127,9 @@ int i40e_program_fdir_filter(struct i40e_fdir_data *fdir_data,
 		fdir_desc->dtype_cmd_cntindex |=
 				    cpu_to_le32(I40E_TXD_FLTR_QW1_CNT_ENA_MASK);
 		fdir_desc->dtype_cmd_cntindex |=
-					    cpu_to_le32((fdir_data->cnt_index
-					    << I40E_TXD_FLTR_QW1_CNTINDEX_SHIFT)
-					    & I40E_TXD_FLTR_QW1_CNTINDEX_MASK);
+			cpu_to_le32((((u32)fdir_data->cnt_index) <<
+					   I40E_TXD_FLTR_QW1_CNTINDEX_SHIFT) &
+				    I40E_TXD_FLTR_QW1_CNTINDEX_MASK);
 	}
 
 	fdir_desc->fd_id = cpu_to_le32(fdir_data->fd_id);
-- 
cgit 


From eaefbd06ede2f4c2d83b5d9addb111c254b265f9 Mon Sep 17 00:00:00 2001
From: Jesse Brandeburg <jesse.brandeburg@intel.com>
Date: Sat, 28 Sep 2013 07:13:54 +0000
Subject: i40e: refactor fdir setup function

This function did a lot of unnecessary cpu_to_xxx(foo) and making it
worse, each of these calls caused a lot of line wrapping.

Fix look and feel via a refactor of this function.  No functional
changes.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_txrx.c | 78 ++++++++++++-----------------
 1 file changed, 33 insertions(+), 45 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 8fc313c2a2e7..41be7a7c5ffa 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -37,6 +37,7 @@ static inline __le64 build_ctob(u32 td_cmd, u32 td_offset, unsigned int size,
 			   ((u64)td_tag  << I40E_TXD_QW1_L2TAG1_SHIFT));
 }
 
+#define I40E_TXD_CMD (I40E_TX_DESC_CMD_EOP | I40E_TX_DESC_CMD_RS)
 /**
  * i40e_program_fdir_filter - Program a Flow Director filter
  * @fdir_input: Packet data that will be filter parameters
@@ -50,6 +51,7 @@ int i40e_program_fdir_filter(struct i40e_fdir_data *fdir_data,
 	struct i40e_tx_buffer *tx_buf;
 	struct i40e_tx_desc *tx_desc;
 	struct i40e_ring *tx_ring;
+	unsigned int fpt, dcc;
 	struct i40e_vsi *vsi;
 	struct device *dev;
 	dma_addr_t dma;
@@ -68,7 +70,7 @@ int i40e_program_fdir_filter(struct i40e_fdir_data *fdir_data,
 	dev = tx_ring->dev;
 
 	dma = dma_map_single(dev, fdir_data->raw_packet,
-				I40E_FDIR_MAX_RAW_PACKET_LOOKUP, DMA_TO_DEVICE);
+			     I40E_FDIR_MAX_RAW_PACKET_LOOKUP, DMA_TO_DEVICE);
 	if (dma_mapping_error(dev, dma))
 		goto dma_fail;
 
@@ -77,74 +79,61 @@ int i40e_program_fdir_filter(struct i40e_fdir_data *fdir_data,
 	fdir_desc = I40E_TX_FDIRDESC(tx_ring, i);
 	tx_buf = &tx_ring->tx_bi[i];
 
-	i++;
-	tx_ring->next_to_use = (i < tx_ring->count) ? i : 0;
+	tx_ring->next_to_use = (i + 1 < tx_ring->count) ? i + 1 : 0;
 
-	fdir_desc->qindex_flex_ptype_vsi = cpu_to_le32((fdir_data->q_index
-					     << I40E_TXD_FLTR_QW0_QINDEX_SHIFT)
-					     & I40E_TXD_FLTR_QW0_QINDEX_MASK);
+	fpt = (fdir_data->q_index << I40E_TXD_FLTR_QW0_QINDEX_SHIFT) &
+	      I40E_TXD_FLTR_QW0_QINDEX_MASK;
 
-	fdir_desc->qindex_flex_ptype_vsi |= cpu_to_le32((fdir_data->flex_off
-					    << I40E_TXD_FLTR_QW0_FLEXOFF_SHIFT)
-					    & I40E_TXD_FLTR_QW0_FLEXOFF_MASK);
+	fpt |= (fdir_data->flex_off << I40E_TXD_FLTR_QW0_FLEXOFF_SHIFT) &
+	       I40E_TXD_FLTR_QW0_FLEXOFF_MASK;
 
-	fdir_desc->qindex_flex_ptype_vsi |= cpu_to_le32((fdir_data->pctype
-					     << I40E_TXD_FLTR_QW0_PCTYPE_SHIFT)
-					     & I40E_TXD_FLTR_QW0_PCTYPE_MASK);
+	fpt |= (fdir_data->pctype << I40E_TXD_FLTR_QW0_PCTYPE_SHIFT) &
+	       I40E_TXD_FLTR_QW0_PCTYPE_MASK;
 
 	/* Use LAN VSI Id if not programmed by user */
 	if (fdir_data->dest_vsi == 0)
-		fdir_desc->qindex_flex_ptype_vsi |=
-					  cpu_to_le32((pf->vsi[pf->lan_vsi]->id)
-					   << I40E_TXD_FLTR_QW0_DEST_VSI_SHIFT);
+		fpt |= (pf->vsi[pf->lan_vsi]->id) <<
+		       I40E_TXD_FLTR_QW0_DEST_VSI_SHIFT;
 	else
-		fdir_desc->qindex_flex_ptype_vsi |=
-			cpu_to_le32((((u32)fdir_data->dest_vsi) <<
-					  I40E_TXD_FLTR_QW0_DEST_VSI_SHIFT) &
-				    I40E_TXD_FLTR_QW0_DEST_VSI_MASK);
+		fpt |= ((u32)fdir_data->dest_vsi <<
+			I40E_TXD_FLTR_QW0_DEST_VSI_SHIFT) &
+		       I40E_TXD_FLTR_QW0_DEST_VSI_MASK;
+
+	fdir_desc->qindex_flex_ptype_vsi = cpu_to_le32(fpt);
 
-	fdir_desc->dtype_cmd_cntindex =
-				    cpu_to_le32(I40E_TX_DESC_DTYPE_FILTER_PROG);
+	dcc = I40E_TX_DESC_DTYPE_FILTER_PROG;
 
 	if (add)
-		fdir_desc->dtype_cmd_cntindex |= cpu_to_le32(
-				       I40E_FILTER_PROGRAM_DESC_PCMD_ADD_UPDATE
-					<< I40E_TXD_FLTR_QW1_PCMD_SHIFT);
+		dcc |= I40E_FILTER_PROGRAM_DESC_PCMD_ADD_UPDATE <<
+		       I40E_TXD_FLTR_QW1_PCMD_SHIFT;
 	else
-		fdir_desc->dtype_cmd_cntindex |= cpu_to_le32(
-					   I40E_FILTER_PROGRAM_DESC_PCMD_REMOVE
-					   << I40E_TXD_FLTR_QW1_PCMD_SHIFT);
+		dcc |= I40E_FILTER_PROGRAM_DESC_PCMD_REMOVE <<
+		       I40E_TXD_FLTR_QW1_PCMD_SHIFT;
 
-	fdir_desc->dtype_cmd_cntindex |= cpu_to_le32((fdir_data->dest_ctl
-					  << I40E_TXD_FLTR_QW1_DEST_SHIFT)
-					  & I40E_TXD_FLTR_QW1_DEST_MASK);
+	dcc |= (fdir_data->dest_ctl << I40E_TXD_FLTR_QW1_DEST_SHIFT) &
+	       I40E_TXD_FLTR_QW1_DEST_MASK;
 
-	fdir_desc->dtype_cmd_cntindex |= cpu_to_le32(
-		     (fdir_data->fd_status << I40E_TXD_FLTR_QW1_FD_STATUS_SHIFT)
-		      & I40E_TXD_FLTR_QW1_FD_STATUS_MASK);
+	dcc |= (fdir_data->fd_status << I40E_TXD_FLTR_QW1_FD_STATUS_SHIFT) &
+	       I40E_TXD_FLTR_QW1_FD_STATUS_MASK;
 
 	if (fdir_data->cnt_index != 0) {
-		fdir_desc->dtype_cmd_cntindex |=
-				    cpu_to_le32(I40E_TXD_FLTR_QW1_CNT_ENA_MASK);
-		fdir_desc->dtype_cmd_cntindex |=
-			cpu_to_le32((((u32)fdir_data->cnt_index) <<
-					   I40E_TXD_FLTR_QW1_CNTINDEX_SHIFT) &
-				    I40E_TXD_FLTR_QW1_CNTINDEX_MASK);
+		dcc |= I40E_TXD_FLTR_QW1_CNT_ENA_MASK;
+		dcc |= ((u32)fdir_data->cnt_index <<
+			I40E_TXD_FLTR_QW1_CNTINDEX_SHIFT) &
+		       I40E_TXD_FLTR_QW1_CNTINDEX_MASK;
 	}
 
+	fdir_desc->dtype_cmd_cntindex = cpu_to_le32(dcc);
 	fdir_desc->fd_id = cpu_to_le32(fdir_data->fd_id);
 
 	/* Now program a dummy descriptor */
 	i = tx_ring->next_to_use;
 	tx_desc = I40E_TX_DESC(tx_ring, i);
 
-	i++;
-	tx_ring->next_to_use = (i < tx_ring->count) ? i : 0;
+	tx_ring->next_to_use = (i + 1 < tx_ring->count) ? i + 1 : 0;
 
 	tx_desc->buffer_addr = cpu_to_le64(dma);
-	td_cmd = I40E_TX_DESC_CMD_EOP |
-		 I40E_TX_DESC_CMD_RS  |
-		 I40E_TX_DESC_CMD_DUMMY;
+	td_cmd = I40E_TXD_CMD | I40E_TX_DESC_CMD_DUMMY;
 
 	tx_desc->cmd_type_offset_bsz =
 		build_ctob(td_cmd, 0, I40E_FDIR_MAX_RAW_PACKET_LOOKUP, 0);
@@ -1254,7 +1243,6 @@ static void i40e_atr(struct i40e_ring *tx_ring, struct sk_buff *skb,
 	fdir_desc->dtype_cmd_cntindex = cpu_to_le32(dtype_cmd);
 }
 
-#define I40E_TXD_CMD (I40E_TX_DESC_CMD_EOP | I40E_TX_DESC_CMD_RS)
 /**
  * i40e_tx_prepare_vlan_flags - prepare generic TX VLAN tagging flags for HW
  * @skb:     send buffer
-- 
cgit 


From 116a57d4ae92729b343d6ebb4a1eec24672022ab Mon Sep 17 00:00:00 2001
From: Shannon Nelson <shannon.nelson@intel.com>
Date: Sat, 28 Sep 2013 07:13:59 +0000
Subject: i40e: tweaking icr0 handling for legacy irq

Fix the overactive irq issue seen in testing and allow use of
the legacy interrupt.

Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e.h      |  1 +
 drivers/net/ethernet/intel/i40e/i40e_main.c | 12 +++++-------
 drivers/net/ethernet/intel/i40e/i40e_txrx.c |  3 ++-
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index c06a76ca9aaa..49572dcdba87 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -545,6 +545,7 @@ static inline void i40e_dbg_init(void) {}
 static inline void i40e_dbg_exit(void) {}
 #endif /* CONFIG_DEBUG_FS*/
 void i40e_irq_dynamic_enable(struct i40e_vsi *vsi, int vector);
+void i40e_irq_dynamic_enable_icr0(struct i40e_pf *pf);
 int i40e_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd);
 void i40e_vlan_stripping_disable(struct i40e_vsi *vsi);
 int i40e_vsi_add_vlan(struct i40e_vsi *vsi, s16 vid);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 270190ad7faa..727d14df89ce 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -2532,7 +2532,7 @@ static void i40e_configure_msi_and_legacy(struct i40e_vsi *vsi)
  * i40e_irq_dynamic_enable_icr0 - Enable default interrupt generation for icr0
  * @pf: board private structure
  **/
-static void i40e_irq_dynamic_enable_icr0(struct i40e_pf *pf)
+void i40e_irq_dynamic_enable_icr0(struct i40e_pf *pf)
 {
 	struct i40e_hw *hw = &pf->hw;
 	u32 val;
@@ -2742,14 +2742,14 @@ static irqreturn_t i40e_intr(int irq, void *data)
 
 	icr0 = rd32(hw, I40E_PFINT_ICR0);
 
-	/* if sharing a legacy IRQ, we might get called w/o an intr pending */
-	if ((icr0 & I40E_PFINT_ICR0_INTEVENT_MASK) == 0)
-		return IRQ_NONE;
-
 	val = rd32(hw, I40E_PFINT_DYN_CTL0);
 	val = val | I40E_PFINT_DYN_CTL0_CLEARPBA_MASK;
 	wr32(hw, I40E_PFINT_DYN_CTL0, val);
 
+	/* if sharing a legacy IRQ, we might get called w/o an intr pending */
+	if ((icr0 & I40E_PFINT_ICR0_INTEVENT_MASK) == 0)
+		return IRQ_NONE;
+
 	ena_mask = rd32(hw, I40E_PFINT_ICR0_ENA);
 
 	/* only q0 is used in MSI/Legacy mode, and none are used in MSIX */
@@ -2763,7 +2763,6 @@ static irqreturn_t i40e_intr(int irq, void *data)
 		qval = rd32(hw, I40E_QINT_TQCTL(0));
 		qval &= ~I40E_QINT_TQCTL_CAUSE_ENA_MASK;
 		wr32(hw, I40E_QINT_TQCTL(0), qval);
-		i40e_flush(hw);
 
 		if (!test_bit(__I40E_DOWN, &pf->state))
 			napi_schedule(&pf->vsi[pf->lan_vsi]->q_vectors[0]->napi);
@@ -2825,7 +2824,6 @@ static irqreturn_t i40e_intr(int irq, void *data)
 
 	/* re-enable interrupt causes */
 	wr32(hw, I40E_PFINT_ICR0_ENA, ena_mask);
-	i40e_flush(hw);
 	if (!test_bit(__I40E_DOWN, &pf->state)) {
 		i40e_service_event_schedule(pf);
 		i40e_irq_dynamic_enable_icr0(pf);
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 41be7a7c5ffa..f1f03bc5c729 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -1142,7 +1142,8 @@ int i40e_napi_poll(struct napi_struct *napi, int budget)
 			qval = rd32(hw, I40E_QINT_TQCTL(0));
 			qval |= I40E_QINT_TQCTL_CAUSE_ENA_MASK;
 			wr32(hw, I40E_QINT_TQCTL(0), qval);
-			i40e_flush(hw);
+
+			i40e_irq_dynamic_enable_icr0(vsi->back);
 		}
 	}
 
-- 
cgit 


From 738a9e9b641192e7bd784b4edb0af77151156e01 Mon Sep 17 00:00:00 2001
From: Shannon Nelson <shannon.nelson@intel.com>
Date: Sat, 28 Sep 2013 07:14:04 +0000
Subject: i40e: reorder block declarations in debugfs

This is a cleanup of the local variables declared at the beginning
of each function.

Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 387bf94495f0..246b177ee432 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -1147,9 +1147,9 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 		i40e_veb_release(pf->veb[i]);
 
 	} else if (strncmp(cmd_buf, "add macaddr", 11) == 0) {
-		u8 ma[6];
-		int vlan = 0;
 		struct i40e_mac_filter *f;
+		int vlan = 0;
+		u8 ma[6];
 		int ret;
 
 		cnt = sscanf(&cmd_buf[11],
@@ -1185,8 +1185,8 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 				 ma, vlan, vsi_seid, f, ret);
 
 	} else if (strncmp(cmd_buf, "del macaddr", 11) == 0) {
-		u8 ma[6];
 		int vlan = 0;
+		u8 ma[6];
 		int ret;
 
 		cnt = sscanf(&cmd_buf[11],
@@ -1222,9 +1222,9 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 				 ma, vlan, vsi_seid, ret);
 
 	} else if (strncmp(cmd_buf, "add pvid", 8) == 0) {
-		int v;
-		u16 vid;
 		i40e_status ret;
+		u16 vid;
+		int v;
 
 		cnt = sscanf(&cmd_buf[8], "%i %u", &vsi_seid, &v);
 		if (cnt != 2) {
@@ -1535,10 +1535,10 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 	} else if ((strncmp(cmd_buf, "add fd_filter", 13) == 0) ||
 		   (strncmp(cmd_buf, "rem fd_filter", 13) == 0)) {
 		struct i40e_fdir_data fd_data;
-		int ret;
 		u16 packet_len, i, j = 0;
 		char *asc_packet;
 		bool add = false;
+		int ret;
 
 		asc_packet = kzalloc(I40E_FDIR_MAX_RAW_PACKET_LOOKUP,
 				     GFP_KERNEL);
@@ -1626,9 +1626,9 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 			}
 		} else if (strncmp(&cmd_buf[5],
 			   "get local", 9) == 0) {
+			u16 llen, rlen;
 			int ret, i;
 			u8 *buff;
-			u16 llen, rlen;
 			buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
 			if (!buff)
 				goto command_write_done;
@@ -1659,9 +1659,9 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 			kfree(buff);
 			buff = NULL;
 		} else if (strncmp(&cmd_buf[5], "get remote", 10) == 0) {
+			u16 llen, rlen;
 			int ret, i;
 			u8 *buff;
-			u16 llen, rlen;
 			buff = kzalloc(I40E_LLDPDU_SIZE, GFP_KERNEL);
 			if (!buff)
 				goto command_write_done;
-- 
cgit 


From 59072ba139549ff9850585fde3ec2935addfbff8 Mon Sep 17 00:00:00 2001
From: Shannon Nelson <shannon.nelson@intel.com>
Date: Sat, 28 Sep 2013 07:14:09 +0000
Subject: i40e: check vsi ptrs before dumping them

Make sure there really are rings and queues before trying to dump
information in them.

Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 39 +++++++++++++++-----------
 1 file changed, 23 insertions(+), 16 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index 246b177ee432..ef4cb1cf31f2 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -234,26 +234,33 @@ static ssize_t i40e_dbg_dump_write(struct file *filp,
 			memcpy(p, vsi, len);
 			p += len;
 
-			len = (sizeof(struct i40e_q_vector)
-				* vsi->num_q_vectors);
-			memcpy(p, vsi->q_vectors, len);
-			p += len;
-
-			len = (sizeof(struct i40e_ring) * vsi->num_queue_pairs);
-			memcpy(p, vsi->tx_rings, len);
-			p += len;
-			memcpy(p, vsi->rx_rings, len);
-			p += len;
+			if (vsi->num_q_vectors) {
+				len = (sizeof(struct i40e_q_vector)
+					* vsi->num_q_vectors);
+				memcpy(p, vsi->q_vectors, len);
+				p += len;
+			}
 
-			for (i = 0; i < vsi->num_queue_pairs; i++) {
-				len = sizeof(struct i40e_tx_buffer);
-				memcpy(p, vsi->tx_rings[i]->tx_bi, len);
+			if (vsi->num_queue_pairs) {
+				len = (sizeof(struct i40e_ring) *
+				      vsi->num_queue_pairs);
+				memcpy(p, vsi->tx_rings, len);
+				p += len;
+				memcpy(p, vsi->rx_rings, len);
 				p += len;
 			}
-			for (i = 0; i < vsi->num_queue_pairs; i++) {
+
+			if (vsi->tx_rings[0]) {
+				len = sizeof(struct i40e_tx_buffer);
+				for (i = 0; i < vsi->num_queue_pairs; i++) {
+					memcpy(p, vsi->tx_rings[i]->tx_bi, len);
+					p += len;
+				}
 				len = sizeof(struct i40e_rx_buffer);
-				memcpy(p, vsi->rx_rings[i]->rx_bi, len);
-				p += len;
+				for (i = 0; i < vsi->num_queue_pairs; i++) {
+					memcpy(p, vsi->rx_rings[i]->rx_bi, len);
+					p += len;
+				}
 			}
 
 			/* macvlan filter list */
-- 
cgit 


From 13fd977490fe39b7813fd7c80cce44336c1d8d38 Mon Sep 17 00:00:00 2001
From: Shannon Nelson <shannon.nelson@intel.com>
Date: Sat, 28 Sep 2013 07:14:19 +0000
Subject: i40e: use pf_id for pf function id in qtx_ctl

Simplify code by using an already existing variable.

Signed-off-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c        | 4 ++--
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 727d14df89ce..d8893426b815 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -2174,8 +2174,8 @@ static int i40e_configure_tx_ring(struct i40e_ring *ring)
 
 	/* Now associate this queue with this PCI function */
 	qtx_ctl = I40E_QTX_CTL_PF_QUEUE;
-	qtx_ctl |= ((hw->hmc.hmc_fn_id << I40E_QTX_CTL_PF_INDX_SHIFT)
-						& I40E_QTX_CTL_PF_INDX_MASK);
+	qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT) &
+		    I40E_QTX_CTL_PF_INDX_MASK);
 	wr32(hw, I40E_QTX_CTL(pf_q), qtx_ctl);
 	i40e_flush(hw);
 
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
index 35f49090b3ec..07596982a477 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c
@@ -383,7 +383,7 @@ static int i40e_config_vsi_tx_queue(struct i40e_vf *vf, u16 vsi_idx,
 
 	/* associate this queue with the PCI VF function */
 	qtx_ctl = I40E_QTX_CTL_VF_QUEUE;
-	qtx_ctl |= ((hw->hmc.hmc_fn_id << I40E_QTX_CTL_PF_INDX_SHIFT)
+	qtx_ctl |= ((hw->pf_id << I40E_QTX_CTL_PF_INDX_SHIFT)
 		    & I40E_QTX_CTL_PF_INDX_MASK);
 	qtx_ctl |= (((vf->vf_id + hw->func_caps.vf_base_id)
 		     << I40E_QTX_CTL_VFVM_INDX_SHIFT)
-- 
cgit 


From 1de046b97908dfca3aa3042dd72e3f3205c186c4 Mon Sep 17 00:00:00 2001
From: Catherine Sullivan <catherine.sullivan@intel.com>
Date: Sat, 28 Sep 2013 07:13:23 +0000
Subject: i40e: Bump version

Update the driver version.

Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index d8893426b815..41a79df373d5 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -36,7 +36,7 @@ static const char i40e_driver_string[] =
 
 #define DRV_VERSION_MAJOR 0
 #define DRV_VERSION_MINOR 3
-#define DRV_VERSION_BUILD 10
+#define DRV_VERSION_BUILD 11
 #define DRV_VERSION __stringify(DRV_VERSION_MAJOR) "." \
 	     __stringify(DRV_VERSION_MINOR) "." \
 	     __stringify(DRV_VERSION_BUILD)    DRV_KERN
-- 
cgit 


From 6246cd06d81f0310d09f3cc66349d5a943cc4b02 Mon Sep 17 00:00:00 2001
From: Afzal Mohammed <afzal@ti.com>
Date: Wed, 9 Oct 2013 12:42:33 +0530
Subject: ARM: OMAP2+: wakeupgen: AM43x adaptation

AM43x has 224 interrupts and 7 banks, make it as maximum values. Keep
default values as earlier, if am43x is detected, update interrupts and
banks accordingly.

Also AM43x has only one cpu, ensure that clearing bitmask at wakeupgen
is done only for the single existing cpu, existing code assumes that
there are two cpu's.

If bitmask is cleared in wakeupgen for the nonexistent second cpu,
an imprecise abort happens as soon as Kernel switches to user space.
It was rootcaused by Sekhar Nori <nsekhar@ti.com>.

Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/omap-wakeupgen.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-omap2/omap-wakeupgen.c b/arch/arm/mach-omap2/omap-wakeupgen.c
index 813c61558a5f..3664562f9148 100644
--- a/arch/arm/mach-omap2/omap-wakeupgen.c
+++ b/arch/arm/mach-omap2/omap-wakeupgen.c
@@ -33,8 +33,12 @@
 #include "omap4-sar-layout.h"
 #include "common.h"
 
-#define MAX_NR_REG_BANKS	5
-#define MAX_IRQS		160
+#define AM43XX_NR_REG_BANKS	7
+#define AM43XX_IRQS		224
+#define MAX_NR_REG_BANKS	AM43XX_NR_REG_BANKS
+#define MAX_IRQS		AM43XX_IRQS
+#define DEFAULT_NR_REG_BANKS	5
+#define DEFAULT_IRQS		160
 #define WKG_MASK_ALL		0x00000000
 #define WKG_UNMASK_ALL		0xffffffff
 #define CPU_ENA_OFFSET		0x400
@@ -47,8 +51,8 @@ static void __iomem *wakeupgen_base;
 static void __iomem *sar_base;
 static DEFINE_RAW_SPINLOCK(wakeupgen_lock);
 static unsigned int irq_target_cpu[MAX_IRQS];
-static unsigned int irq_banks = MAX_NR_REG_BANKS;
-static unsigned int max_irqs = MAX_IRQS;
+static unsigned int irq_banks = DEFAULT_NR_REG_BANKS;
+static unsigned int max_irqs = DEFAULT_IRQS;
 static unsigned int omap_secure_apis;
 
 /*
@@ -418,12 +422,16 @@ int __init omap_wakeupgen_init(void)
 		irq_banks = OMAP4_NR_BANKS;
 		max_irqs = OMAP4_NR_IRQS;
 		omap_secure_apis = 1;
+	} else if (soc_is_am43xx()) {
+		irq_banks = AM43XX_NR_REG_BANKS;
+		max_irqs = AM43XX_IRQS;
 	}
 
 	/* Clear all IRQ bitmasks at wakeupGen level */
 	for (i = 0; i < irq_banks; i++) {
 		wakeupgen_writel(0, i, CPU0_ID);
-		wakeupgen_writel(0, i, CPU1_ID);
+		if (!soc_is_am43xx())
+			wakeupgen_writel(0, i, CPU1_ID);
 	}
 
 	/*
-- 
cgit 


From 0bebda684857f76548ea48c8886785198701d8d3 Mon Sep 17 00:00:00 2001
From: Markus Pargmann <mpa@pengutronix.de>
Date: Thu, 17 Oct 2013 09:18:38 +0200
Subject: ARM: OMAP2+: irq, AM33XX add missing register check

am33xx has a INTC_PENDING_IRQ3 register that is not checked for pending
interrupts. This patch adds AM33XX to the ifdef of SOCs that have to
check this register.

Cc: stable@vger.kernel.org
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/irq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c
index 3926f370448f..e022a869bff2 100644
--- a/arch/arm/mach-omap2/irq.c
+++ b/arch/arm/mach-omap2/irq.c
@@ -233,7 +233,7 @@ static inline void omap_intc_handle_irq(void __iomem *base_addr, struct pt_regs
 			goto out;
 
 		irqnr = readl_relaxed(base_addr + 0xd8);
-#ifdef CONFIG_SOC_TI81XX
+#if IS_ENABLED(CONFIG_SOC_TI81XX) || IS_ENABLED(CONFIG_SOC_AM33XX)
 		if (irqnr)
 			goto out;
 		irqnr = readl_relaxed(base_addr + 0xf8);
-- 
cgit 


From e7243b7673a20ac28cfdc78c8862587ea8173a39 Mon Sep 17 00:00:00 2001
From: Markus Pargmann <mpa@pengutronix.de>
Date: Mon, 14 Oct 2013 14:49:21 +0200
Subject: ARM: dts: am33xx, change usb ctrl module label

Control module is not usb specific.
Changes the label to usb_ctrl_mod.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/am33xx.dtsi | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 97f501951564..0ca13ad92fa6 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -416,7 +416,7 @@
 			ti,hwmods = "usb_otg_hs";
 			status = "disabled";
 
-			ctrl_mod: control@44e10000 {
+			usb_ctrl_mod: control@44e10000 {
 				compatible = "ti,am335x-usb-ctrl-module";
 				reg = <0x44e10620 0x10
 					0x44e10648 0x4>;
@@ -429,7 +429,7 @@
 				reg = <0x47401300 0x100>;
 				reg-names = "phy";
 				status = "disabled";
-				ti,ctrl_mod = <&ctrl_mod>;
+				ti,ctrl_mod = <&usb_ctrl_mod>;
 			};
 
 			usb0: usb@47401000 {
@@ -477,7 +477,7 @@
 				reg = <0x47401b00 0x100>;
 				reg-names = "phy";
 				status = "disabled";
-				ti,ctrl_mod = <&ctrl_mod>;
+				ti,ctrl_mod = <&usb_ctrl_mod>;
 			};
 
 			usb1: usb@47401800 {
-- 
cgit 


From 05bc85d1b52d8a9cc0faa7692747dcee05dd8bc9 Mon Sep 17 00:00:00 2001
From: Eric Witcher <ewitcher@mindspring.com>
Date: Fri, 18 Oct 2013 02:42:34 -0400
Subject: ARM: dts: omap5-uevm: fix mcspi node pin descriptions

Correct mcspi pin descriptions to match corresponding node name and
add chip select number to be consistent with OMAP5 TRM.

Signed-off-by: Eric Witcher <ewitcher@mindspring.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap5-uevm.dts | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts
index e06a04a63664..8d8030569378 100644
--- a/arch/arm/boot/dts/omap5-uevm.dts
+++ b/arch/arm/boot/dts/omap5-uevm.dts
@@ -131,25 +131,25 @@
 			0xbc (PIN_INPUT | MUX_MODE0)		/*  mcspi2_clk */
 			0xbe (PIN_INPUT | MUX_MODE0)		/*  mcspi2_simo */
 			0xc0 (PIN_INPUT_PULLUP | MUX_MODE0)	/*  mcspi2_somi */
-			0xc2 (PIN_OUTPUT | MUX_MODE0)		/*  mcspi2_cs */
+			0xc2 (PIN_OUTPUT | MUX_MODE0)		/*  mcspi2_cs0 */
 		>;
 	};
 
 	mcspi3_pins: pinmux_mcspi3_pins {
 		pinctrl-single,pins = <
-			0x78 (PIN_INPUT | MUX_MODE1)		/*  mcspi2_somi */
-			0x7a (PIN_INPUT | MUX_MODE1)		/*  mcspi2_cs */
-			0x7c (PIN_INPUT | MUX_MODE1)		/*  mcspi2_simo */
-			0x7e (PIN_INPUT | MUX_MODE1)		/*  mcspi2_clk */
+			0x78 (PIN_INPUT | MUX_MODE1)		/*  mcspi3_somi */
+			0x7a (PIN_INPUT | MUX_MODE1)		/*  mcspi3_cs0 */
+			0x7c (PIN_INPUT | MUX_MODE1)		/*  mcspi3_simo */
+			0x7e (PIN_INPUT | MUX_MODE1)		/*  mcspi3_clk */
 		>;
 	};
 
 	mcspi4_pins: pinmux_mcspi4_pins {
 		pinctrl-single,pins = <
-			0x164 (PIN_INPUT | MUX_MODE1)		/*  mcspi2_clk */
-			0x168 (PIN_INPUT | MUX_MODE1)		/*  mcspi2_simo */
-			0x16a (PIN_INPUT | MUX_MODE1)		/*  mcspi2_somi */
-			0x16c (PIN_INPUT | MUX_MODE1)		/*  mcspi2_cs */
+			0x164 (PIN_INPUT | MUX_MODE1)		/*  mcspi4_clk */
+			0x168 (PIN_INPUT | MUX_MODE1)		/*  mcspi4_simo */
+			0x16a (PIN_INPUT | MUX_MODE1)		/*  mcspi4_somi */
+			0x16c (PIN_INPUT | MUX_MODE1)		/*  mcspi4_cs0 */
 		>;
 	};
 
-- 
cgit 


From 2d1d841bd44e24b58a3d3cc4fa793670aaa38fbf Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Fri, 18 Oct 2013 18:19:04 +0100
Subject: ARM: KVM: Fix MPIDR computing to support virtual clusters

In order to be able to support more than 4 A7 or A15 CPUs,
we need to fix the MPIDR computing to reflect the fact that
both A15 and A7 can only exist in clusters of at most 4 CPUs.

Fix the MPIDR computing to allow virtual clusters to be exposed
to the guest.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm/kvm/coproc.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/arm/kvm/coproc.c b/arch/arm/kvm/coproc.c
index a629f2c1d0f9..631e6bd0e05f 100644
--- a/arch/arm/kvm/coproc.c
+++ b/arch/arm/kvm/coproc.c
@@ -74,11 +74,13 @@ int kvm_handle_cp14_access(struct kvm_vcpu *vcpu, struct kvm_run *run)
 static void reset_mpidr(struct kvm_vcpu *vcpu, const struct coproc_reg *r)
 {
 	/*
-	 * Compute guest MPIDR. No need to mess around with different clusters
-	 * but we read the 'U' bit from the underlying hardware directly.
+	 * Compute guest MPIDR. We build a virtual cluster out of the
+	 * vcpu_id, but we read the 'U' bit from the underlying
+	 * hardware directly.
 	 */
-	vcpu->arch.cp15[c0_MPIDR] = (read_cpuid_mpidr() & MPIDR_SMP_BITMASK)
-					| vcpu->vcpu_id;
+	vcpu->arch.cp15[c0_MPIDR] = ((read_cpuid_mpidr() & MPIDR_SMP_BITMASK) |
+				     ((vcpu->vcpu_id >> 2) << MPIDR_LEVEL_BITS) |
+				     (vcpu->vcpu_id & 3));
 }
 
 /* TRM entries A7:4.3.31 A15:4.3.28 - RO WI */
-- 
cgit 


From 9cbb6d969cb6561de45d917b8bb9281cb374bb35 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Fri, 18 Oct 2013 18:19:05 +0100
Subject: ARM: KVM: fix L2CTLR to be per-cluster

The L2CTLR register contains the number of CPUs in this cluster.

Make sure the register content is actually relevant to the vcpu
that is being configured by computing the number of cores that are
part of its cluster.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm/kvm/coproc.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/kvm/coproc.c b/arch/arm/kvm/coproc.c
index 631e6bd0e05f..78c0885d6501 100644
--- a/arch/arm/kvm/coproc.c
+++ b/arch/arm/kvm/coproc.c
@@ -124,6 +124,10 @@ static void reset_l2ctlr(struct kvm_vcpu *vcpu, const struct coproc_reg *r)
 	asm volatile("mrc p15, 1, %0, c9, c0, 2\n" : "=r" (l2ctlr));
 	l2ctlr &= ~(3 << 24);
 	ncores = atomic_read(&vcpu->kvm->online_vcpus) - 1;
+	/* How many cores in the current cluster and the next ones */
+	ncores -= (vcpu->vcpu_id & ~3);
+	/* Cap it to the maximum number of cores in a single cluster */
+	ncores = min(ncores, 3U);
 	l2ctlr |= (ncores & 3) << 24;
 
 	vcpu->arch.cp15[c9_L2CTLR] = l2ctlr;
-- 
cgit 


From 7999b4d18211bcfb40e3574cf75e94518e9fa2c6 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Fri, 18 Oct 2013 18:19:06 +0100
Subject: ARM: KVM: drop limitation to 4 CPU VMs

Now that the KVM/arm code knows about affinity, remove the hard
limit of 4 vcpus per VM.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm/kvm/reset.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/arm/kvm/reset.c b/arch/arm/kvm/reset.c
index d9bbd834f188..2c5add03abfa 100644
--- a/arch/arm/kvm/reset.c
+++ b/arch/arm/kvm/reset.c
@@ -33,8 +33,6 @@
  * Cortex-A15 and Cortex-A7 Reset Values
  */
 
-static const int cortexa_max_cpu_idx = 3;
-
 static struct kvm_regs cortexa_regs_reset = {
 	.usr_regs.ARM_cpsr = SVC_MODE | PSR_A_BIT | PSR_I_BIT | PSR_F_BIT,
 };
@@ -64,8 +62,6 @@ int kvm_reset_vcpu(struct kvm_vcpu *vcpu)
 	switch (vcpu->arch.target) {
 	case KVM_ARM_TARGET_CORTEX_A7:
 	case KVM_ARM_TARGET_CORTEX_A15:
-		if (vcpu->vcpu_id > cortexa_max_cpu_idx)
-			return -EINVAL;
 		cpu_reset = &cortexa_regs_reset;
 		vcpu->arch.midr = read_cpuid_id();
 		cpu_vtimer_irq = &cortexa_vtimer_irq;
-- 
cgit 


From 79c648806f9034abf54332b78043bb242189d953 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Fri, 18 Oct 2013 18:19:03 +0100
Subject: arm/arm64: KVM: PSCI: use MPIDR to identify a target CPU

The KVM PSCI code blindly assumes that vcpu_id and MPIDR are
the same thing. This is true when vcpus are organized as a flat
topology, but is wrong when trying to emulate any other topology
(such as A15 clusters).

Change the KVM PSCI CPU_ON code to look at the MPIDR instead
of the vcpu_id to pick a target CPU.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm/include/asm/kvm_emulate.h   |  5 +++++
 arch/arm/kvm/psci.c                  | 17 +++++++++++++----
 arch/arm64/include/asm/kvm_emulate.h |  5 +++++
 3 files changed, 23 insertions(+), 4 deletions(-)

diff --git a/arch/arm/include/asm/kvm_emulate.h b/arch/arm/include/asm/kvm_emulate.h
index a464e8d7b6c5..708e4d8a647f 100644
--- a/arch/arm/include/asm/kvm_emulate.h
+++ b/arch/arm/include/asm/kvm_emulate.h
@@ -157,4 +157,9 @@ static inline u32 kvm_vcpu_hvc_get_imm(struct kvm_vcpu *vcpu)
 	return kvm_vcpu_get_hsr(vcpu) & HSR_HVC_IMM_MASK;
 }
 
+static inline unsigned long kvm_vcpu_get_mpidr(struct kvm_vcpu *vcpu)
+{
+	return vcpu->arch.cp15[c0_MPIDR];
+}
+
 #endif /* __ARM_KVM_EMULATE_H__ */
diff --git a/arch/arm/kvm/psci.c b/arch/arm/kvm/psci.c
index 86a693a02ba3..311263124acf 100644
--- a/arch/arm/kvm/psci.c
+++ b/arch/arm/kvm/psci.c
@@ -18,6 +18,7 @@
 #include <linux/kvm_host.h>
 #include <linux/wait.h>
 
+#include <asm/cputype.h>
 #include <asm/kvm_emulate.h>
 #include <asm/kvm_psci.h>
 
@@ -34,22 +35,30 @@ static void kvm_psci_vcpu_off(struct kvm_vcpu *vcpu)
 static unsigned long kvm_psci_vcpu_on(struct kvm_vcpu *source_vcpu)
 {
 	struct kvm *kvm = source_vcpu->kvm;
-	struct kvm_vcpu *vcpu;
+	struct kvm_vcpu *vcpu = NULL, *tmp;
 	wait_queue_head_t *wq;
 	unsigned long cpu_id;
+	unsigned long mpidr;
 	phys_addr_t target_pc;
+	int i;
 
 	cpu_id = *vcpu_reg(source_vcpu, 1);
 	if (vcpu_mode_is_32bit(source_vcpu))
 		cpu_id &= ~((u32) 0);
 
-	if (cpu_id >= atomic_read(&kvm->online_vcpus))
+	kvm_for_each_vcpu(i, tmp, kvm) {
+		mpidr = kvm_vcpu_get_mpidr(tmp);
+		if ((mpidr & MPIDR_HWID_BITMASK) == (cpu_id & MPIDR_HWID_BITMASK)) {
+			vcpu = tmp;
+			break;
+		}
+	}
+
+	if (!vcpu)
 		return KVM_PSCI_RET_INVAL;
 
 	target_pc = *vcpu_reg(source_vcpu, 2);
 
-	vcpu = kvm_get_vcpu(kvm, cpu_id);
-
 	wq = kvm_arch_vcpu_wq(vcpu);
 	if (!waitqueue_active(wq))
 		return KVM_PSCI_RET_INVAL;
diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
index eec073875218..6df93cdc652b 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -177,4 +177,9 @@ static inline u8 kvm_vcpu_trap_get_fault(const struct kvm_vcpu *vcpu)
 	return kvm_vcpu_get_hsr(vcpu) & ESR_EL2_FSC_TYPE;
 }
 
+static inline unsigned long kvm_vcpu_get_mpidr(struct kvm_vcpu *vcpu)
+{
+	return vcpu_sys_reg(vcpu, MPIDR_EL1);
+}
+
 #endif /* __ARM64_KVM_EMULATE_H__ */
-- 
cgit 


From 92d51856d7405fa55bcf3d6f20d7e97e0bf2656c Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Wed, 16 Oct 2013 10:39:01 -0500
Subject: ARM: OMAP3+: do not register non-dt OPP tables for device tree boot

OMAP3+ supports both device tree and non-device tree boot.
Device tree bindings for OMAP3+ is supposed to be added via dts following:
Documentation/devicetree/bindings/power/opp.txt

Since we now have device tree entries for OMAP3+ cpu OPPs,
The current code wrongly adds duplicate OPPs. So, dont register OPPs
when booting using device tree.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/opp.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/mach-omap2/opp.c b/arch/arm/mach-omap2/opp.c
index bd41d59a7cab..82fd8c72f750 100644
--- a/arch/arm/mach-omap2/opp.c
+++ b/arch/arm/mach-omap2/opp.c
@@ -17,6 +17,7 @@
  * GNU General Public License for more details.
  */
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/opp.h>
 #include <linux/cpu.h>
 
@@ -40,6 +41,9 @@ int __init omap_init_opp_table(struct omap_opp_def *opp_def,
 {
 	int i, r;
 
+	if (of_have_populated_dt())
+		return -EINVAL;
+
 	if (!opp_def || !opp_def_size) {
 		pr_err("%s: invalid params!\n", __func__);
 		return -EINVAL;
-- 
cgit 


From 765e7a067eebf372687048ba0242e27f43cf0d71 Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Wed, 16 Oct 2013 10:39:02 -0500
Subject: ARM: OMAP2+: add missing lateinit hook for calling pm late init

AM335x, AM43xx, OMAP5 and DRA7 have missing late init hook. Introduce
SoC specific hook with a call to OMAP2+ generic lateinit hook. This
allows the generic late initializations such as cpufreq hooks to be
active.

Based on out-of-tree patches that need to be introduced in
mainline, this introduction allows us to provide the foundation for
further SoC specific features as they are developed.

Cc: Benoit Cousson <bcousson@baylibre.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-generic.c |  4 ++++
 arch/arm/mach-omap2/common.h        |  4 ++++
 arch/arm/mach-omap2/io.c            | 20 ++++++++++++++++++++
 3 files changed, 28 insertions(+)

diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index 3896b12b0006..19f1652e94cf 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -146,6 +146,7 @@ DT_MACHINE_START(AM33XX_DT, "Generic AM33XX (Flattened Device Tree)")
 	.init_irq	= omap_intc_of_init,
 	.handle_irq	= omap3_intc_handle_irq,
 	.init_machine	= omap_generic_init,
+	.init_late	= am33xx_init_late,
 	.init_time	= omap3_gptimer_timer_init,
 	.dt_compat	= am33xx_boards_compat,
 	.restart	= am33xx_restart,
@@ -185,6 +186,7 @@ DT_MACHINE_START(OMAP5_DT, "Generic OMAP5 (Flattened Device Tree)")
 	.init_early	= omap5_init_early,
 	.init_irq	= omap_gic_of_init,
 	.init_machine	= omap_generic_init,
+	.init_late	= omap5_init_late,
 	.init_time	= omap5_realtime_timer_init,
 	.dt_compat	= omap5_boards_compat,
 	.restart	= omap44xx_restart,
@@ -200,6 +202,7 @@ static const char *am43_boards_compat[] __initdata = {
 DT_MACHINE_START(AM43_DT, "Generic AM43 (Flattened Device Tree)")
 	.map_io		= am33xx_map_io,
 	.init_early	= am43xx_init_early,
+	.init_late	= am43xx_init_late,
 	.init_irq	= omap_gic_of_init,
 	.init_machine	= omap_generic_init,
 	.init_time	= omap3_sync32k_timer_init,
@@ -218,6 +221,7 @@ DT_MACHINE_START(DRA7XX_DT, "Generic DRA7XX (Flattened Device Tree)")
 	.smp		= smp_ops(omap4_smp_ops),
 	.map_io		= omap5_map_io,
 	.init_early	= dra7xx_init_early,
+	.init_late	= dra7xx_init_late,
 	.init_irq	= omap_gic_of_init,
 	.init_machine	= omap_generic_init,
 	.init_time	= omap5_realtime_timer_init,
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index c6aebf0b42d8..f7644febee81 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -98,6 +98,7 @@ void am35xx_init_early(void);
 void ti81xx_init_early(void);
 void am33xx_init_early(void);
 void am43xx_init_early(void);
+void am43xx_init_late(void);
 void omap4430_init_early(void);
 void omap5_init_early(void);
 void omap3_init_late(void);	/* Do not use this one */
@@ -109,8 +110,11 @@ void omap35xx_init_late(void);
 void omap3630_init_late(void);
 void am35xx_init_late(void);
 void ti81xx_init_late(void);
+void am33xx_init_late(void);
+void omap5_init_late(void);
 int omap2_common_pm_late_init(void);
 void dra7xx_init_early(void);
+void dra7xx_init_late(void);
 
 #ifdef CONFIG_SOC_BUS
 void omap_soc_device_init(void);
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index ff2113ce4014..a2cbb44582e4 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -583,6 +583,11 @@ void __init am33xx_init_early(void)
 	omap_hwmod_init_postsetup();
 	omap_clk_init = am33xx_clk_init;
 }
+
+void __init am33xx_init_late(void)
+{
+	omap_common_late_init();
+}
 #endif
 
 #ifdef CONFIG_SOC_AM43XX
@@ -596,6 +601,11 @@ void __init am43xx_init_early(void)
 	omap2_set_globals_cm(AM33XX_L4_WK_IO_ADDRESS(AM43XX_PRCM_BASE), NULL);
 	omap3xxx_check_revision();
 }
+
+void __init am43xx_init_late(void)
+{
+	omap_common_late_init();
+}
 #endif
 
 #ifdef CONFIG_ARCH_OMAP4
@@ -651,6 +661,11 @@ void __init omap5_init_early(void)
 	omap54xx_hwmod_init();
 	omap_hwmod_init_postsetup();
 }
+
+void __init omap5_init_late(void)
+{
+	omap_common_late_init();
+}
 #endif
 
 #ifdef CONFIG_SOC_DRA7XX
@@ -671,6 +686,11 @@ void __init dra7xx_init_early(void)
 	dra7xx_hwmod_init();
 	omap_hwmod_init_postsetup();
 }
+
+void __init dra7xx_init_late(void)
+{
+	omap_common_late_init();
+}
 #endif
 
 
-- 
cgit 


From 60c5fc86d01154e2a005bf701f495426ebc81f73 Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Wed, 16 Oct 2013 10:39:03 -0500
Subject: ARM: OMAP3+: use cpu0-cpufreq driver in device tree supported boot

With OMAP3+ and AM33xx supported SoC having defined CPU device tree
entries with operating-points and clock nodes defined, we can now use
the SoC generic cpufreq-cpu0 driver by registering appropriate device.

Cc: Benoit Cousson <bcousson@baylibre.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Paul Walmsley <paul@pwsan.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/pm.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index e742118fcfd2..360b2daf54dd 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -266,7 +266,12 @@ static void __init omap4_init_voltages(void)
 
 static inline void omap_init_cpufreq(void)
 {
-	struct platform_device_info devinfo = { .name = "omap-cpufreq", };
+	struct platform_device_info devinfo = { };
+
+	if (!of_have_populated_dt())
+		devinfo.name = "omap-cpufreq";
+	else
+		devinfo.name = "cpufreq-cpu0";
 	platform_device_register_full(&devinfo);
 }
 
@@ -300,10 +305,11 @@ int __init omap2_common_pm_late_init(void)
 		/* Smartreflex device init */
 		omap_devinit_smartreflex();
 
-		/* cpufreq dummy device instantiation */
-		omap_init_cpufreq();
 	}
 
+	/* cpufreq dummy device instantiation */
+	omap_init_cpufreq();
+
 #ifdef CONFIG_SUSPEND
 	suspend_set_ops(&omap_pm_ops);
 #endif
-- 
cgit 


From b8981d71b59a42af614c231b3e3df4858c18a75e Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Wed, 16 Oct 2013 10:39:04 -0500
Subject: ARM: dts: omap5-uevm: add smps123 supply for CPU

regulator smps123 supply from Palmas PMIC powers CPU0 on OMAP5uEVM.

Based on a patch by J Keerthy <j-keerthy@ti.com>

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap5-uevm.dts | 4 ++++
 arch/arm/boot/dts/omap5.dtsi     | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts
index 8d8030569378..22d9b51dbd16 100644
--- a/arch/arm/boot/dts/omap5-uevm.dts
+++ b/arch/arm/boot/dts/omap5-uevm.dts
@@ -501,3 +501,7 @@
         pinctrl-names = "default";
         pinctrl-0 = <&uart5_pins>;
 };
+
+&cpu0 {
+	cpu0-supply = <&smps123_reg>;
+};
diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
index 2cb72ba1dd05..b3158738991a 100644
--- a/arch/arm/boot/dts/omap5.dtsi
+++ b/arch/arm/boot/dts/omap5.dtsi
@@ -38,7 +38,7 @@
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		cpu@0 {
+		cpu0: cpu@0 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a15";
 			reg = <0x0>;
-- 
cgit 


From 22f1e7ef814d2ceace28a36edb4febbd0daab7d1 Mon Sep 17 00:00:00 2001
From: J Keerthy <j-keerthy@ti.com>
Date: Wed, 16 Oct 2013 10:39:05 -0500
Subject: ARM: dts: dra7-evm: add smps123 supply for CPU

regulator smps123 supply from Palmas PMIC powers CPU0 on DRA7 EVM.

[nm@ti.com: rebase to latest]
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/dra7-evm.dts | 4 ++++
 arch/arm/boot/dts/dra7.dtsi    | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index 3abf5f41e5cc..5babba0a3a75 100644
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -269,3 +269,7 @@
 	vmmc-supply = <&mmc2_3v3>;
 	bus-width = <8>;
 };
+
+&cpu0 {
+	cpu0-supply = <&smps123_reg>;
+};
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 98ff6553edbc..c4fb401a086a 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -37,7 +37,7 @@
 		#address-cells = <1>;
 		#size-cells = <0>;
 
-		cpu@0 {
+		cpu0: cpu@0 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a15";
 			reg = <0>;
-- 
cgit 


From 6c24894d9f1319fd23644e1c9f9b2b675fc20b1a Mon Sep 17 00:00:00 2001
From: J Keerthy <j-keerthy@ti.com>
Date: Wed, 16 Oct 2013 10:39:06 -0500
Subject: ARM: dts: OMAP5: Add CPU OPP table

Add DT OPP table for OMAP54xx family of devices. This data is
decoded by OF with of_init_opp_table() helper function.

The data is based on OMAP543x ES2.0 DM Operating Condition Addendum
Version 0.6(April 2013)

NOTE: The voltage and frequency values work well only on NOM samples
and are supposed to work properly only with ABB/AVS for ALL OPPs.

TODO: Add SPEED BIN OPP after ABB and AVS support so the cpufreq works
on all samples seamlessly. Clock node is pending alignment for clock
dts conversion

[nm@ti.com: sync to latest and fixes]
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap5.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
index b3158738991a..154d92fae1d5 100644
--- a/arch/arm/boot/dts/omap5.dtsi
+++ b/arch/arm/boot/dts/omap5.dtsi
@@ -42,6 +42,13 @@
 			device_type = "cpu";
 			compatible = "arm,cortex-a15";
 			reg = <0x0>;
+
+			operating-points = <
+				/* kHz    uV */
+				500000  880000
+				1000000 1060000
+				1500000 1250000
+			>;
 		};
 		cpu@1 {
 			device_type = "cpu";
-- 
cgit 


From 620c516898f105a838c4f3bdd14742068d60e437 Mon Sep 17 00:00:00 2001
From: J Keerthy <j-keerthy@ti.com>
Date: Wed, 16 Oct 2013 10:39:07 -0500
Subject: ARM: dts: DRA7: Add CPU OPP table

Add DT OPP table for DRA7xx family of devices. This data is decoded by
OF with of_init_opp_table() helper function.

The data is based on DRA75x, DRA74x Data Manual revision F (Sept 2013).

TODO: add OPP_HIGH after AVS-Class0 is functional
NOTE: The voltage and frequency values work well only on NOM samples
and it is mandatory to use ABB/AVS Class 0 support for all OPPs.

Clock nodes are pending clock node alignment.

[nm@ti.com: cleanups and rebase to latest]
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: J Keerthy <j-keerthy@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/dra7.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index c4fb401a086a..d0df4c4e8b0a 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -41,6 +41,12 @@
 			device_type = "cpu";
 			compatible = "arm,cortex-a15";
 			reg = <0>;
+
+			operating-points = <
+				/* kHz    uV */
+				1000000	1060000
+				1176000	1160000
+				>;
 		};
 		cpu@1 {
 			device_type = "cpu";
-- 
cgit 


From 901486b89b8ee1c87148d6681c4a1c49d921effe Mon Sep 17 00:00:00 2001
From: Peter Huewe <peterhuewe@gmx.de>
Date: Tue, 22 Oct 2013 19:28:30 +0200
Subject: tpm: MAINTAINERS: Add myself as tpm maintainer

Since I'm actively maintaining the tpm subsystem for a few months now,
it's time to step up and be an official maintainer for the tpm subsystem,
atleast until I hear something different from my company.

The maintaining is done solely in my private time, out of private interest.
Speaking only on behalf of myself, trying to be as vendor neutral as possible.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
---
 MAINTAINERS | 1 +
 1 file changed, 1 insertion(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 4fde7066de70..936adb4e6b39 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8475,6 +8475,7 @@ F:	drivers/media/usb/tm6000/
 TPM DEVICE DRIVER
 M:	Leonidas Da Silva Barbosa <leosilva@linux.vnet.ibm.com>
 M:	Ashley Lai <ashley@ashleylai.com>
+M:	Peter Huewe <peterhuewe@gmx.de>
 M:	Rajiv Andrade <mail@srajiv.net>
 W:	http://tpmdd.sourceforge.net
 M:	Marcel Selhorst <tpmdd@selhorst.net>
-- 
cgit 


From 37ab03414829e5cf261d7f82f0a39b505635143e Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Date: Sat, 14 Sep 2013 16:57:58 -0600
Subject: tpm: ibmvtpm: Use %zd formatting for size_t format arguments

This suppresses compile warnings on 32 bit builds.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com>
Reviewed-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Acked-by: Ashley Lai <adlai@linux.vnet.ibm.com>
---
 drivers/char/tpm/tpm_ibmvtpm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c
index 56b07c35a13e..838f04314814 100644
--- a/drivers/char/tpm/tpm_ibmvtpm.c
+++ b/drivers/char/tpm/tpm_ibmvtpm.c
@@ -98,7 +98,7 @@ static int tpm_ibmvtpm_recv(struct tpm_chip *chip, u8 *buf, size_t count)
 
 	if (count < len) {
 		dev_err(ibmvtpm->dev,
-			"Invalid size in recv: count=%ld, crq_size=%d\n",
+			"Invalid size in recv: count=%zd, crq_size=%d\n",
 			count, len);
 		return -EIO;
 	}
@@ -136,7 +136,7 @@ static int tpm_ibmvtpm_send(struct tpm_chip *chip, u8 *buf, size_t count)
 
 	if (count > ibmvtpm->rtce_size) {
 		dev_err(ibmvtpm->dev,
-			"Invalid size in send: count=%ld, rtce_size=%d\n",
+			"Invalid size in send: count=%zd, rtce_size=%d\n",
 			count, ibmvtpm->rtce_size);
 		return -EIO;
 	}
-- 
cgit 


From 1e6e0974b5d401ab8505eca821f00fcb74d50a55 Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Date: Sat, 14 Sep 2013 17:36:29 -0600
Subject: tpm atmel: Call request_region with the correct base

Commit e0dd03caf20d040a0a86 ("tpm: return chip from
tpm_register_hardware") changed the code path here so that
ateml_get_base_addr no longer directly altered the tpm_vendor_specific
structure, and instead placed the base address on the stack.

The commit missed updating the request_region call, which would have
resulted in request_region being called with 0 as the base address.

I don't know if request_region(0, ..) will fail, if so the
driver has been broken since 2006 and we should remove it
from the tree as it has no users.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com>
Reviewed-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
---
 drivers/char/tpm/tpm_atmel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/tpm/tpm_atmel.c b/drivers/char/tpm/tpm_atmel.c
index 99d6820c611d..c9a528d25d22 100644
--- a/drivers/char/tpm/tpm_atmel.c
+++ b/drivers/char/tpm/tpm_atmel.c
@@ -202,7 +202,7 @@ static int __init init_atmel(void)
 
 	have_region =
 	    (atmel_request_region
-	     (tpm_atmel.base, region_size, "tpm_atmel0") == NULL) ? 0 : 1;
+	     (base, region_size, "tpm_atmel0") == NULL) ? 0 : 1;
 
 	pdev = platform_device_register_simple("tpm_atmel", -1, NULL, 0);
 	if (IS_ERR(pdev)) {
-- 
cgit 


From 6aff1fdc5d59acd7181bdd2f41b34d7bea1b6dcb Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Date: Sun, 22 Sep 2013 14:19:18 -0600
Subject: tpm: Store devname in the tpm_chip

Just put the memory directly in the chip structure, rather than
in a 2nd dedicated kmalloc.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com>
Reviewed-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Acked-by: Ashley Lai <adlai@linux.vnet.ibm.com>
---
 drivers/char/tpm/tpm.c | 17 ++++++-----------
 drivers/char/tpm/tpm.h |  1 +
 2 files changed, 7 insertions(+), 11 deletions(-)

diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index e3c974a6c522..71eb8c762880 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -1463,7 +1463,6 @@ void tpm_dev_vendor_release(struct tpm_chip *chip)
 		chip->vendor.release(chip->dev);
 
 	clear_bit(chip->dev_num, dev_mask);
-	kfree(chip->vendor.miscdev.name);
 }
 EXPORT_SYMBOL_GPL(tpm_dev_vendor_release);
 
@@ -1496,17 +1495,13 @@ EXPORT_SYMBOL_GPL(tpm_dev_release);
 struct tpm_chip *tpm_register_hardware(struct device *dev,
 					const struct tpm_vendor_specific *entry)
 {
-#define DEVNAME_SIZE 7
-
-	char *devname;
 	struct tpm_chip *chip;
 
 	/* Driver specific per-device data */
 	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
-	devname = kmalloc(DEVNAME_SIZE, GFP_KERNEL);
 
-	if (chip == NULL || devname == NULL)
-		goto out_free;
+	if (chip == NULL)
+		return NULL;
 
 	mutex_init(&chip->buffer_mutex);
 	mutex_init(&chip->tpm_mutex);
@@ -1531,8 +1526,9 @@ struct tpm_chip *tpm_register_hardware(struct device *dev,
 
 	set_bit(chip->dev_num, dev_mask);
 
-	scnprintf(devname, DEVNAME_SIZE, "%s%d", "tpm", chip->dev_num);
-	chip->vendor.miscdev.name = devname;
+	scnprintf(chip->devname, sizeof(chip->devname), "%s%d", "tpm",
+		  chip->dev_num);
+	chip->vendor.miscdev.name = chip->devname;
 
 	chip->vendor.miscdev.parent = dev;
 	chip->dev = get_device(dev);
@@ -1558,7 +1554,7 @@ struct tpm_chip *tpm_register_hardware(struct device *dev,
 		goto put_device;
 	}
 
-	chip->bios_dir = tpm_bios_log_setup(devname);
+	chip->bios_dir = tpm_bios_log_setup(chip->devname);
 
 	/* Make chip available */
 	spin_lock(&driver_lock);
@@ -1571,7 +1567,6 @@ put_device:
 	put_device(chip->dev);
 out_free:
 	kfree(chip);
-	kfree(devname);
 	return NULL;
 }
 EXPORT_SYMBOL_GPL(tpm_register_hardware);
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index a7bfc176ed43..0df18b56b2c5 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -122,6 +122,7 @@ struct tpm_chip {
 	struct device *dev;	/* Device stuff */
 
 	int dev_num;		/* /dev/tpm# */
+	char devname[7];
 	unsigned long is_open;	/* only one allowed */
 	int time_expired;
 
-- 
cgit 


From 58c09e21332c4ab56ac694a71f6715db2768f53f Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Date: Sat, 5 Oct 2013 11:38:02 -0600
Subject: tpm: Use container_of to locate the tpm_chip in tpm_open

misc_open sets the file->private_date to the misc_dev when calling
open. We can use container_of to go from the misc_dev back to the
tpm_chip.

Future clean ups will move tpm_open into a new file and this change
means we do not have to export the tpm_chip list.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com>
Reviewed-by: Peter Huewe <peterhuewe@gmx.de>
Acked-by: Ashley Lai <adlai@linux.vnet.ibm.com>
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
---
 drivers/char/tpm/tpm.c | 21 ++++-----------------
 1 file changed, 4 insertions(+), 17 deletions(-)

diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index 71eb8c762880..c3ab508222af 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -1170,38 +1170,25 @@ EXPORT_SYMBOL_GPL(wait_for_tpm_stat);
  */
 int tpm_open(struct inode *inode, struct file *file)
 {
-	int minor = iminor(inode);
-	struct tpm_chip *chip = NULL, *pos;
-
-	rcu_read_lock();
-	list_for_each_entry_rcu(pos, &tpm_chip_list, list) {
-		if (pos->vendor.miscdev.minor == minor) {
-			chip = pos;
-			get_device(chip->dev);
-			break;
-		}
-	}
-	rcu_read_unlock();
-
-	if (!chip)
-		return -ENODEV;
+	struct miscdevice *misc = file->private_data;
+	struct tpm_chip *chip = container_of(misc, struct tpm_chip,
+					     vendor.miscdev);
 
 	if (test_and_set_bit(0, &chip->is_open)) {
 		dev_dbg(chip->dev, "Another process owns this TPM\n");
-		put_device(chip->dev);
 		return -EBUSY;
 	}
 
 	chip->data_buffer = kzalloc(TPM_BUFSIZE, GFP_KERNEL);
 	if (chip->data_buffer == NULL) {
 		clear_bit(0, &chip->is_open);
-		put_device(chip->dev);
 		return -ENOMEM;
 	}
 
 	atomic_set(&chip->data_pending, 0);
 
 	file->private_data = chip;
+	get_device(chip->dev);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(tpm_open);
-- 
cgit 


From d0a40174efb0b9d232ccd1cf127cb90a2120f55b Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Date: Sat, 5 Oct 2013 11:40:19 -0600
Subject: tpm: Remove redundant dev_set_drvdata

TPM drivers should not call dev_set_drvdata (or aliases), only the core
code is allowed to call dev_set_drvdata, and it does it during
tpm_register_hardware.

These extra sets are harmless, but are an anti-pattern that many drivers
have copied.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com>
Reviewed-by: Peter Huewe <peterhuewe@gmx.de>
Acked-by: Ashley Lai <adlai@linux.vnet.ibm.com>
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
---
 drivers/char/tpm/tpm_i2c_infineon.c | 2 --
 drivers/char/tpm/tpm_i2c_stm_st33.c | 2 --
 drivers/char/tpm/xen-tpmfront.c     | 2 --
 3 files changed, 6 deletions(-)

diff --git a/drivers/char/tpm/tpm_i2c_infineon.c b/drivers/char/tpm/tpm_i2c_infineon.c
index b8735de8ce95..e33d8e551eff 100644
--- a/drivers/char/tpm/tpm_i2c_infineon.c
+++ b/drivers/char/tpm/tpm_i2c_infineon.c
@@ -685,7 +685,6 @@ out_vendor:
 	chip->dev->release = NULL;
 	chip->release = NULL;
 	tpm_dev.client = NULL;
-	dev_set_drvdata(chip->dev, chip);
 out_err:
 	return rc;
 }
@@ -766,7 +765,6 @@ static int tpm_tis_i2c_remove(struct i2c_client *client)
 	chip->dev->release = NULL;
 	chip->release = NULL;
 	tpm_dev.client = NULL;
-	dev_set_drvdata(chip->dev, chip);
 
 	return 0;
 }
diff --git a/drivers/char/tpm/tpm_i2c_stm_st33.c b/drivers/char/tpm/tpm_i2c_stm_st33.c
index 5bb8e2ddd3b3..1c68d9317aba 100644
--- a/drivers/char/tpm/tpm_i2c_stm_st33.c
+++ b/drivers/char/tpm/tpm_i2c_stm_st33.c
@@ -746,8 +746,6 @@ tpm_st33_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id)
 
 	tpm_get_timeouts(chip);
 
-	i2c_set_clientdata(client, chip);
-
 	dev_info(chip->dev, "TPM I2C Initialized\n");
 	return 0;
 _irq_set:
diff --git a/drivers/char/tpm/xen-tpmfront.c b/drivers/char/tpm/xen-tpmfront.c
index 7a7929ba2658..9b483705694e 100644
--- a/drivers/char/tpm/xen-tpmfront.c
+++ b/drivers/char/tpm/xen-tpmfront.c
@@ -386,8 +386,6 @@ static int tpmfront_probe(struct xenbus_device *dev,
 
 	tpm_get_timeouts(priv->chip);
 
-	dev_set_drvdata(&dev->dev, priv->chip);
-
 	return rv;
 }
 
-- 
cgit 


From cb996158dfe8a31377700f46b7f3d69ddc5ae1e4 Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Date: Sun, 22 Sep 2013 16:03:28 -0600
Subject: tpm: st33: Remove chip->data_buffer access from this driver

For some reason this driver thinks that chip->data_buffer needs
to be set before it can call tpm_pm_*. This is not true. data_buffer
is used only by /dev/tpmX, which is why it is managed exclusively
by the fops functions.

Cc: Mathias Leblanc <mathias.leblanc@st.com>
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com>
---
 drivers/char/tpm/tpm_i2c_stm_st33.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/char/tpm/tpm_i2c_stm_st33.c b/drivers/char/tpm/tpm_i2c_stm_st33.c
index 1c68d9317aba..b2390b6173e7 100644
--- a/drivers/char/tpm/tpm_i2c_stm_st33.c
+++ b/drivers/char/tpm/tpm_i2c_stm_st33.c
@@ -805,24 +805,18 @@ static int tpm_st33_i2c_remove(struct i2c_client *client)
 #ifdef CONFIG_PM_SLEEP
 /*
  * tpm_st33_i2c_pm_suspend suspend the TPM device
- * Added: Work around when suspend and no tpm application is running, suspend
- * may fail because chip->data_buffer is not set (only set in tpm_open in Linux
- * TPM core)
  * @param: client, the i2c_client drescription (TPM I2C description).
  * @param: mesg, the power management message.
  * @return: 0 in case of success.
  */
 static int tpm_st33_i2c_pm_suspend(struct device *dev)
 {
-	struct tpm_chip *chip = dev_get_drvdata(dev);
 	struct st33zp24_platform_data *pin_infos = dev->platform_data;
 	int ret = 0;
 
 	if (power_mgt) {
 		gpio_set_value(pin_infos->io_lpcpd, 0);
 	} else {
-		if (chip->data_buffer == NULL)
-			chip->data_buffer = pin_infos->tpm_i2c_buffer[0];
 		ret = tpm_pm_suspend(dev);
 	}
 	return ret;
@@ -847,8 +841,6 @@ static int tpm_st33_i2c_pm_resume(struct device *dev)
 					  TPM_STS_VALID) == TPM_STS_VALID,
 					  chip->vendor.timeout_b);
 	} else {
-		if (chip->data_buffer == NULL)
-			chip->data_buffer = pin_infos->tpm_i2c_buffer[0];
 		ret = tpm_pm_resume(dev);
 		if (!ret)
 			tpm_do_selftest(chip);
-- 
cgit 


From e907481bed439cd04fb24084baab41015b89da6e Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Date: Tue, 17 Sep 2013 18:19:44 -0600
Subject: tpm: Remove tpm_show_caps_1_2

The version of the TPM should not depend on the bus it is connected
through. 1.1, 1.2 and soon 2.0 TPMS will be all be able to use the
same bus interfaces.

Make tpm_show_caps try the 1.2 capability first. If that fails then
fall back to the 1.1 capability. This effectively auto-detects what
interface the TPM supports at run-time.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Reviewed-by: Joel Schopp <jschopp@linux.vnet.ibm.com>
Reviewed-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
---
 drivers/char/tpm/tpm.c              | 56 +++++++++++++++----------------------
 drivers/char/tpm/tpm.h              |  2 --
 drivers/char/tpm/tpm_i2c_infineon.c |  2 +-
 drivers/char/tpm/tpm_i2c_stm_st33.c |  2 +-
 drivers/char/tpm/tpm_ibmvtpm.c      |  2 +-
 drivers/char/tpm/tpm_tis.c          |  2 +-
 6 files changed, 27 insertions(+), 39 deletions(-)

diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index c3ab508222af..72f0c68d466e 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -1020,43 +1020,33 @@ ssize_t tpm_show_caps(struct device *dev, struct device_attribute *attr,
 	str += sprintf(str, "Manufacturer: 0x%x\n",
 		       be32_to_cpu(cap.manufacturer_id));
 
-	rc = tpm_getcap(dev, CAP_VERSION_1_1, &cap,
-		        "attempting to determine the 1.1 version");
-	if (rc)
-		return 0;
-	str += sprintf(str,
-		       "TCG version: %d.%d\nFirmware version: %d.%d\n",
-		       cap.tpm_version.Major, cap.tpm_version.Minor,
-		       cap.tpm_version.revMajor, cap.tpm_version.revMinor);
-	return str - buf;
-}
-EXPORT_SYMBOL_GPL(tpm_show_caps);
-
-ssize_t tpm_show_caps_1_2(struct device * dev,
-			  struct device_attribute * attr, char *buf)
-{
-	cap_t cap;
-	ssize_t rc;
-	char *str = buf;
-
-	rc = tpm_getcap(dev, TPM_CAP_PROP_MANUFACTURER, &cap,
-			"attempting to determine the manufacturer");
-	if (rc)
-		return 0;
-	str += sprintf(str, "Manufacturer: 0x%x\n",
-		       be32_to_cpu(cap.manufacturer_id));
+	/* Try to get a TPM version 1.2 TPM_CAP_VERSION_INFO */
 	rc = tpm_getcap(dev, CAP_VERSION_1_2, &cap,
 			 "attempting to determine the 1.2 version");
-	if (rc)
-		return 0;
-	str += sprintf(str,
-		       "TCG version: %d.%d\nFirmware version: %d.%d\n",
-		       cap.tpm_version_1_2.Major, cap.tpm_version_1_2.Minor,
-		       cap.tpm_version_1_2.revMajor,
-		       cap.tpm_version_1_2.revMinor);
+	if (!rc) {
+		str += sprintf(str,
+			       "TCG version: %d.%d\nFirmware version: %d.%d\n",
+			       cap.tpm_version_1_2.Major,
+			       cap.tpm_version_1_2.Minor,
+			       cap.tpm_version_1_2.revMajor,
+			       cap.tpm_version_1_2.revMinor);
+	} else {
+		/* Otherwise just use TPM_STRUCT_VER */
+		rc = tpm_getcap(dev, CAP_VERSION_1_1, &cap,
+				"attempting to determine the 1.1 version");
+		if (rc)
+			return 0;
+		str += sprintf(str,
+			       "TCG version: %d.%d\nFirmware version: %d.%d\n",
+			       cap.tpm_version.Major,
+			       cap.tpm_version.Minor,
+			       cap.tpm_version.revMajor,
+			       cap.tpm_version.revMinor);
+	}
+
 	return str - buf;
 }
-EXPORT_SYMBOL_GPL(tpm_show_caps_1_2);
+EXPORT_SYMBOL_GPL(tpm_show_caps);
 
 ssize_t tpm_show_durations(struct device *dev, struct device_attribute *attr,
 			  char *buf)
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index 0df18b56b2c5..f32847872193 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -59,8 +59,6 @@ extern ssize_t tpm_show_pcrs(struct device *, struct device_attribute *attr,
 				char *);
 extern ssize_t tpm_show_caps(struct device *, struct device_attribute *attr,
 				char *);
-extern ssize_t tpm_show_caps_1_2(struct device *, struct device_attribute *attr,
-				char *);
 extern ssize_t tpm_store_cancel(struct device *, struct device_attribute *attr,
 				const char *, size_t);
 extern ssize_t tpm_show_enabled(struct device *, struct device_attribute *attr,
diff --git a/drivers/char/tpm/tpm_i2c_infineon.c b/drivers/char/tpm/tpm_i2c_infineon.c
index e33d8e551eff..fefd2aa5c81e 100644
--- a/drivers/char/tpm/tpm_i2c_infineon.c
+++ b/drivers/char/tpm/tpm_i2c_infineon.c
@@ -581,7 +581,7 @@ static DEVICE_ATTR(enabled, S_IRUGO, tpm_show_enabled, NULL);
 static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL);
 static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL);
 static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated, NULL);
-static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps_1_2, NULL);
+static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL);
 static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel);
 static DEVICE_ATTR(durations, S_IRUGO, tpm_show_durations, NULL);
 static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL);
diff --git a/drivers/char/tpm/tpm_i2c_stm_st33.c b/drivers/char/tpm/tpm_i2c_stm_st33.c
index b2390b6173e7..a0d6ceb5d005 100644
--- a/drivers/char/tpm/tpm_i2c_stm_st33.c
+++ b/drivers/char/tpm/tpm_i2c_stm_st33.c
@@ -584,7 +584,7 @@ static DEVICE_ATTR(enabled, S_IRUGO, tpm_show_enabled, NULL);
 static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL);
 static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL);
 static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated, NULL);
-static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps_1_2, NULL);
+static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL);
 static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel);
 
 static struct attribute *stm_tpm_attrs[] = {
diff --git a/drivers/char/tpm/tpm_ibmvtpm.c b/drivers/char/tpm/tpm_ibmvtpm.c
index 838f04314814..2783a42aa732 100644
--- a/drivers/char/tpm/tpm_ibmvtpm.c
+++ b/drivers/char/tpm/tpm_ibmvtpm.c
@@ -419,7 +419,7 @@ static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL);
 static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL);
 static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated,
 		   NULL);
-static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps_1_2, NULL);
+static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL);
 static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel);
 static DEVICE_ATTR(durations, S_IRUGO, tpm_show_durations, NULL);
 static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL);
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index 5796d0157ce0..1b74459c0723 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -448,7 +448,7 @@ static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL);
 static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL);
 static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated,
 		   NULL);
-static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps_1_2, NULL);
+static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL);
 static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel);
 static DEVICE_ATTR(durations, S_IRUGO, tpm_show_durations, NULL);
 static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL);
-- 
cgit 


From 1bd7116f1cb833c998cddb6b188df463342069d8 Mon Sep 17 00:00:00 2001
From: Andy Zhou <azhou@nicira.com>
Date: Tue, 22 Oct 2013 10:42:46 -0700
Subject: openvswitch: collect mega flow mask stats

Collect mega flow mask stats. ovs-dpctl show command can be used to
display them for debugging and performance tuning.

Signed-off-by: Andy Zhou <azhou@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
---
 include/uapi/linux/openvswitch.h | 17 ++++++++++++++---
 net/openvswitch/datapath.c       | 38 +++++++++++++++++++++++++++++++-------
 net/openvswitch/datapath.h       |  4 ++++
 net/openvswitch/flow_table.c     | 16 +++++++++++++++-
 net/openvswitch/flow_table.h     |  4 +++-
 5 files changed, 67 insertions(+), 12 deletions(-)

diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index a74d375b439b..2cc4644f68ef 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h
@@ -63,15 +63,18 @@ enum ovs_datapath_cmd {
  * not be sent.
  * @OVS_DP_ATTR_STATS: Statistics about packets that have passed through the
  * datapath.  Always present in notifications.
+ * @OVS_DP_ATTR_MEGAFLOW_STATS: Statistics about mega flow masks usage for the
+ * datapath. Always present in notifications.
  *
  * These attributes follow the &struct ovs_header within the Generic Netlink
  * payload for %OVS_DP_* commands.
  */
 enum ovs_datapath_attr {
 	OVS_DP_ATTR_UNSPEC,
-	OVS_DP_ATTR_NAME,       /* name of dp_ifindex netdev */
-	OVS_DP_ATTR_UPCALL_PID, /* Netlink PID to receive upcalls */
-	OVS_DP_ATTR_STATS,      /* struct ovs_dp_stats */
+	OVS_DP_ATTR_NAME,		/* name of dp_ifindex netdev */
+	OVS_DP_ATTR_UPCALL_PID,		/* Netlink PID to receive upcalls */
+	OVS_DP_ATTR_STATS,		/* struct ovs_dp_stats */
+	OVS_DP_ATTR_MEGAFLOW_STATS,	/* struct ovs_dp_megaflow_stats */
 	__OVS_DP_ATTR_MAX
 };
 
@@ -84,6 +87,14 @@ struct ovs_dp_stats {
 	__u64 n_flows;           /* Number of flows present */
 };
 
+struct ovs_dp_megaflow_stats {
+	__u64 n_mask_hit;	 /* Number of masks used for flow lookups. */
+	__u32 n_masks;		 /* Number of masks for the datapath. */
+	__u32 pad0;		 /* Pad for future expension. */
+	__u64 pad1;		 /* Pad for future expension. */
+	__u64 pad2;		 /* Pad for future expension. */
+};
+
 struct ovs_vport_stats {
 	__u64   rx_packets;		/* total packets received       */
 	__u64   tx_packets;		/* total packets transmitted    */
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index cf270973095d..5bc5a4e64758 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -221,6 +221,7 @@ void ovs_dp_process_received_packet(struct vport *p, struct sk_buff *skb)
 	struct dp_stats_percpu *stats;
 	struct sw_flow_key key;
 	u64 *stats_counter;
+	u32 n_mask_hit;
 	int error;
 
 	stats = this_cpu_ptr(dp->stats_percpu);
@@ -233,7 +234,7 @@ void ovs_dp_process_received_packet(struct vport *p, struct sk_buff *skb)
 	}
 
 	/* Look up flow. */
-	flow = ovs_flow_tbl_lookup(&dp->table, &key);
+	flow = ovs_flow_tbl_lookup(&dp->table, &key, &n_mask_hit);
 	if (unlikely(!flow)) {
 		struct dp_upcall_info upcall;
 
@@ -258,6 +259,7 @@ out:
 	/* Update datapath statistics. */
 	u64_stats_update_begin(&stats->sync);
 	(*stats_counter)++;
+	stats->n_mask_hit += n_mask_hit;
 	u64_stats_update_end(&stats->sync);
 }
 
@@ -563,13 +565,18 @@ static struct genl_ops dp_packet_genl_ops[] = {
 	}
 };
 
-static void get_dp_stats(struct datapath *dp, struct ovs_dp_stats *stats)
+static void get_dp_stats(struct datapath *dp, struct ovs_dp_stats *stats,
+			 struct ovs_dp_megaflow_stats *mega_stats)
 {
 	int i;
 
+	memset(mega_stats, 0, sizeof(*mega_stats));
+
 	stats->n_flows = ovs_flow_tbl_count(&dp->table);
+	mega_stats->n_masks = ovs_flow_tbl_num_masks(&dp->table);
 
 	stats->n_hit = stats->n_missed = stats->n_lost = 0;
+
 	for_each_possible_cpu(i) {
 		const struct dp_stats_percpu *percpu_stats;
 		struct dp_stats_percpu local_stats;
@@ -585,6 +592,7 @@ static void get_dp_stats(struct datapath *dp, struct ovs_dp_stats *stats)
 		stats->n_hit += local_stats.n_hit;
 		stats->n_missed += local_stats.n_missed;
 		stats->n_lost += local_stats.n_lost;
+		mega_stats->n_mask_hit += local_stats.n_mask_hit;
 	}
 }
 
@@ -743,6 +751,14 @@ static struct sk_buff *ovs_flow_cmd_build_info(struct sw_flow *flow,
 	return skb;
 }
 
+static struct sw_flow *__ovs_flow_tbl_lookup(struct flow_table *tbl,
+					      const struct sw_flow_key *key)
+{
+	u32 __always_unused n_mask_hit;
+
+	return ovs_flow_tbl_lookup(tbl, key, &n_mask_hit);
+}
+
 static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 {
 	struct nlattr **a = info->attrs;
@@ -793,7 +809,7 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 		goto err_unlock_ovs;
 
 	/* Check if this is a duplicate flow */
-	flow = ovs_flow_tbl_lookup(&dp->table, &key);
+	flow = __ovs_flow_tbl_lookup(&dp->table, &key);
 	if (!flow) {
 		/* Bail out if we're not allowed to create a new flow. */
 		error = -ENOENT;
@@ -905,7 +921,7 @@ static int ovs_flow_cmd_get(struct sk_buff *skb, struct genl_info *info)
 		goto unlock;
 	}
 
-	flow = ovs_flow_tbl_lookup(&dp->table, &key);
+	flow = __ovs_flow_tbl_lookup(&dp->table, &key);
 	if (!flow || !ovs_flow_cmp_unmasked_key(flow, &match)) {
 		err = -ENOENT;
 		goto unlock;
@@ -953,7 +969,7 @@ static int ovs_flow_cmd_del(struct sk_buff *skb, struct genl_info *info)
 	if (err)
 		goto unlock;
 
-	flow = ovs_flow_tbl_lookup(&dp->table, &key);
+	flow = __ovs_flow_tbl_lookup(&dp->table, &key);
 	if (!flow || !ovs_flow_cmp_unmasked_key(flow, &match)) {
 		err = -ENOENT;
 		goto unlock;
@@ -1067,6 +1083,7 @@ static size_t ovs_dp_cmd_msg_size(void)
 
 	msgsize += nla_total_size(IFNAMSIZ);
 	msgsize += nla_total_size(sizeof(struct ovs_dp_stats));
+	msgsize += nla_total_size(sizeof(struct ovs_dp_megaflow_stats));
 
 	return msgsize;
 }
@@ -1076,6 +1093,7 @@ static int ovs_dp_cmd_fill_info(struct datapath *dp, struct sk_buff *skb,
 {
 	struct ovs_header *ovs_header;
 	struct ovs_dp_stats dp_stats;
+	struct ovs_dp_megaflow_stats dp_megaflow_stats;
 	int err;
 
 	ovs_header = genlmsg_put(skb, portid, seq, &dp_datapath_genl_family,
@@ -1091,8 +1109,14 @@ static int ovs_dp_cmd_fill_info(struct datapath *dp, struct sk_buff *skb,
 	if (err)
 		goto nla_put_failure;
 
-	get_dp_stats(dp, &dp_stats);
-	if (nla_put(skb, OVS_DP_ATTR_STATS, sizeof(struct ovs_dp_stats), &dp_stats))
+	get_dp_stats(dp, &dp_stats, &dp_megaflow_stats);
+	if (nla_put(skb, OVS_DP_ATTR_STATS, sizeof(struct ovs_dp_stats),
+			&dp_stats))
+		goto nla_put_failure;
+
+	if (nla_put(skb, OVS_DP_ATTR_MEGAFLOW_STATS,
+			sizeof(struct ovs_dp_megaflow_stats),
+			&dp_megaflow_stats))
 		goto nla_put_failure;
 
 	return genlmsg_end(skb, ovs_header);
diff --git a/net/openvswitch/datapath.h b/net/openvswitch/datapath.h
index acfd4af8ca3a..d3d14a58aa91 100644
--- a/net/openvswitch/datapath.h
+++ b/net/openvswitch/datapath.h
@@ -46,11 +46,15 @@
  * @n_lost: Number of received packets that had no matching flow in the flow
  * table that could not be sent to userspace (normally due to an overflow in
  * one of the datapath's queues).
+ * @n_mask_hit: Number of masks looked up for flow match.
+ *   @n_mask_hit / (@n_hit + @n_missed)  will be the average masks looked
+ *   up per packet.
  */
 struct dp_stats_percpu {
 	u64 n_hit;
 	u64 n_missed;
 	u64 n_lost;
+	u64 n_mask_hit;
 	struct u64_stats_sync sync;
 };
 
diff --git a/net/openvswitch/flow_table.c b/net/openvswitch/flow_table.c
index 036e019f8c3c..536b4d2a42e2 100644
--- a/net/openvswitch/flow_table.c
+++ b/net/openvswitch/flow_table.c
@@ -430,13 +430,16 @@ static struct sw_flow *masked_flow_lookup(struct table_instance *ti,
 }
 
 struct sw_flow *ovs_flow_tbl_lookup(struct flow_table *tbl,
-				    const struct sw_flow_key *key)
+				    const struct sw_flow_key *key,
+				    u32 *n_mask_hit)
 {
 	struct table_instance *ti = rcu_dereference(tbl->ti);
 	struct sw_flow_mask *mask;
 	struct sw_flow *flow;
 
+	*n_mask_hit = 0;
 	list_for_each_entry_rcu(mask, &tbl->mask_list, list) {
+		(*n_mask_hit)++;
 		flow = masked_flow_lookup(ti, key, mask);
 		if (flow)  /* Found */
 			return flow;
@@ -444,6 +447,17 @@ struct sw_flow *ovs_flow_tbl_lookup(struct flow_table *tbl,
 	return NULL;
 }
 
+int ovs_flow_tbl_num_masks(const struct flow_table *table)
+{
+	struct sw_flow_mask *mask;
+	int num = 0;
+
+	list_for_each_entry(mask, &table->mask_list, list)
+		num++;
+
+	return num;
+}
+
 static struct table_instance *table_instance_expand(struct table_instance *ti)
 {
 	return table_instance_rehash(ti, ti->n_buckets * 2);
diff --git a/net/openvswitch/flow_table.h b/net/openvswitch/flow_table.h
index 4db5f78b6f81..fbe45d5ad07d 100644
--- a/net/openvswitch/flow_table.h
+++ b/net/openvswitch/flow_table.h
@@ -66,10 +66,12 @@ int ovs_flow_tbl_flush(struct flow_table *flow_table);
 int ovs_flow_tbl_insert(struct flow_table *table, struct sw_flow *flow,
 			struct sw_flow_mask *mask);
 void ovs_flow_tbl_remove(struct flow_table *table, struct sw_flow *flow);
+int  ovs_flow_tbl_num_masks(const struct flow_table *table);
 struct sw_flow *ovs_flow_tbl_dump_next(struct table_instance *table,
 				       u32 *bucket, u32 *idx);
 struct sw_flow *ovs_flow_tbl_lookup(struct flow_table *,
-				    const struct sw_flow_key *);
+				    const struct sw_flow_key *,
+				    u32 *n_mask_hit);
 
 bool ovs_flow_cmp_unmasked_key(const struct sw_flow *flow,
 			       struct sw_flow_match *match);
-- 
cgit 


From 0a4182692ef2b0131ffc9ae523c2dea0cd636201 Mon Sep 17 00:00:00 2001
From: Peter Huewe <peterhuewe@gmx.de>
Date: Tue, 22 Oct 2013 00:29:14 +0200
Subject: tpm: cleanup checkpatch warnings

before we rename the file it might be a good idea to cleanup the long
persisting checkpatch warnings.
Since everything is really trivial, splitting the patch up would only
result in noise.

For the interested reader - here the checkpatch warnings:
(regrouped for easer readability)

ERROR: trailing whitespace
+ * Specifications at www.trustedcomputinggroup.org^I $
+ * $
+^I/* $
+^I   parameters (RSA 12->bytes: keybit, #primes, expbit)  $

WARNING: unnecessary whitespace before a quoted newline
+			"invalid count value %x %zx \n", count, bufsiz);

ERROR: do not use assignment in if condition
+	if ((rc = chip->vendor.send(chip, (u8 *) buf, count)) < 0) {

ERROR: space required after that ',' (ctx:VxV)
+	len = tpm_transmit(chip,(u8 *) cmd, len);
 	                       ^

ERROR: "foo * bar" should be "foo *bar"
+ssize_t tpm_show_enabled(struct device * dev, struct device_attribute * attr,
+ssize_t tpm_show_enabled(struct device * dev, struct device_attribute * attr,
+ssize_t tpm_show_active(struct device * dev, struct device_attribute * attr,
+ssize_t tpm_show_active(struct device * dev, struct device_attribute * attr,
+ssize_t tpm_show_owned(struct device * dev, struct device_attribute * attr,
+ssize_t tpm_show_owned(struct device * dev, struct device_attribute * attr,
+ssize_t tpm_show_temp_deactivated(struct device * dev,
+				struct device_attribute * attr, char *buf)

WARNING: please, no space before tabs
+ * @chip_num: ^Itpm idx # or ANY$
+ * @res_buf: ^ITPM_PCR value$
+ * ^I^Isize of res_buf is 20 bytes (or NULL if you don't care)$
+ * @chip_num: ^Itpm idx # or AN&$
+ * @hash: ^Ihash value used to extend pcr value$

ERROR: code indent should use tabs where possible
+^I                                     TPM_ORD_CONTINUE_SELFTEST);$

WARNING: line over 80 characters
+static bool wait_for_tpm_stat_cond(struct tpm_chip *chip, u8 mask, bool check_cancel,

ERROR: trailing whitespace
+ * Called from tpm_<specific>.c probe function only for devices $

total: 16 errors, 7 warnings, 1554 lines checked

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
---
 drivers/char/tpm/tpm.c | 44 ++++++++++++++++++++++----------------------
 1 file changed, 22 insertions(+), 22 deletions(-)

diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index 72f0c68d466e..6ae41d337630 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -10,13 +10,13 @@
  * Maintained by: <tpmdd-devel@lists.sourceforge.net>
  *
  * Device driver for TCG/TCPA TPM (trusted platform module).
- * Specifications at www.trustedcomputinggroup.org	 
+ * Specifications at www.trustedcomputinggroup.org
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
  * published by the Free Software Foundation, version 2 of the
  * License.
- * 
+ *
  * Note, the TPM chip is not interrupt driven (only polling)
  * and can have very long timeouts (minutes!). Hence the unusual
  * calls to msleep.
@@ -371,13 +371,14 @@ static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf,
 		return -ENODATA;
 	if (count > bufsiz) {
 		dev_err(chip->dev,
-			"invalid count value %x %zx \n", count, bufsiz);
+			"invalid count value %x %zx\n", count, bufsiz);
 		return -E2BIG;
 	}
 
 	mutex_lock(&chip->tpm_mutex);
 
-	if ((rc = chip->vendor.send(chip, (u8 *) buf, count)) < 0) {
+	rc = chip->vendor.send(chip, (u8 *) buf, count);
+	if (rc < 0) {
 		dev_err(chip->dev,
 			"tpm_transmit: tpm_send: error %zd\n", rc);
 		goto out;
@@ -444,7 +445,7 @@ static ssize_t transmit_cmd(struct tpm_chip *chip, struct tpm_cmd_t *cmd,
 {
 	int err;
 
-	len = tpm_transmit(chip,(u8 *) cmd, len);
+	len = tpm_transmit(chip, (u8 *) cmd, len);
 	if (len <  0)
 		return len;
 	else if (len < TPM_HEADER_SIZE)
@@ -658,7 +659,7 @@ static int tpm_continue_selftest(struct tpm_chip *chip)
 	return rc;
 }
 
-ssize_t tpm_show_enabled(struct device * dev, struct device_attribute * attr,
+ssize_t tpm_show_enabled(struct device *dev, struct device_attribute *attr,
 			char *buf)
 {
 	cap_t cap;
@@ -674,7 +675,7 @@ ssize_t tpm_show_enabled(struct device * dev, struct device_attribute * attr,
 }
 EXPORT_SYMBOL_GPL(tpm_show_enabled);
 
-ssize_t tpm_show_active(struct device * dev, struct device_attribute * attr,
+ssize_t tpm_show_active(struct device *dev, struct device_attribute *attr,
 			char *buf)
 {
 	cap_t cap;
@@ -690,7 +691,7 @@ ssize_t tpm_show_active(struct device * dev, struct device_attribute * attr,
 }
 EXPORT_SYMBOL_GPL(tpm_show_active);
 
-ssize_t tpm_show_owned(struct device * dev, struct device_attribute * attr,
+ssize_t tpm_show_owned(struct device *dev, struct device_attribute *attr,
 			char *buf)
 {
 	cap_t cap;
@@ -706,8 +707,8 @@ ssize_t tpm_show_owned(struct device * dev, struct device_attribute * attr,
 }
 EXPORT_SYMBOL_GPL(tpm_show_owned);
 
-ssize_t tpm_show_temp_deactivated(struct device * dev,
-				struct device_attribute * attr, char *buf)
+ssize_t tpm_show_temp_deactivated(struct device *dev,
+				struct device_attribute *attr, char *buf)
 {
 	cap_t cap;
 	ssize_t rc;
@@ -769,10 +770,10 @@ static int __tpm_pcr_read(struct tpm_chip *chip, int pcr_idx, u8 *res_buf)
 
 /**
  * tpm_pcr_read - read a pcr value
- * @chip_num: 	tpm idx # or ANY
+ * @chip_num:	tpm idx # or ANY
  * @pcr_idx:	pcr idx to retrieve
- * @res_buf: 	TPM_PCR value
- * 		size of res_buf is 20 bytes (or NULL if you don't care)
+ * @res_buf:	TPM_PCR value
+ *		size of res_buf is 20 bytes (or NULL if you don't care)
  *
  * The TPM driver should be built-in, but for whatever reason it
  * isn't, protect against the chip disappearing, by incrementing
@@ -794,9 +795,9 @@ EXPORT_SYMBOL_GPL(tpm_pcr_read);
 
 /**
  * tpm_pcr_extend - extend pcr value with hash
- * @chip_num: 	tpm idx # or AN&
+ * @chip_num:	tpm idx # or AN&
  * @pcr_idx:	pcr idx to extend
- * @hash: 	hash value used to extend pcr value
+ * @hash:	hash value used to extend pcr value
  *
  * The TPM driver should be built-in, but for whatever reason it
  * isn't, protect against the chip disappearing, by incrementing
@@ -847,8 +848,7 @@ int tpm_do_selftest(struct tpm_chip *chip)
 	unsigned long duration;
 	struct tpm_cmd_t cmd;
 
-	duration = tpm_calc_ordinal_duration(chip,
-	                                     TPM_ORD_CONTINUE_SELFTEST);
+	duration = tpm_calc_ordinal_duration(chip, TPM_ORD_CONTINUE_SELFTEST);
 
 	loops = jiffies_to_msecs(duration) / delay_msec;
 
@@ -965,12 +965,12 @@ ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr,
 	if (err)
 		goto out;
 
-	/* 
+	/*
 	   ignore header 10 bytes
 	   algorithm 32 bits (1 == RSA )
 	   encscheme 16 bits
 	   sigscheme 16 bits
-	   parameters (RSA 12->bytes: keybit, #primes, expbit)  
+	   parameters (RSA 12->bytes: keybit, #primes, expbit)
 	   keylenbytes 32 bits
 	   256 byte modulus
 	   ignore checksum 20 bytes
@@ -1092,8 +1092,8 @@ ssize_t tpm_store_cancel(struct device *dev, struct device_attribute *attr,
 }
 EXPORT_SYMBOL_GPL(tpm_store_cancel);
 
-static bool wait_for_tpm_stat_cond(struct tpm_chip *chip, u8 mask, bool check_cancel,
-				   bool *canceled)
+static bool wait_for_tpm_stat_cond(struct tpm_chip *chip, u8 mask,
+					bool check_cancel, bool *canceled)
 {
 	u8 status = chip->vendor.status(chip);
 
@@ -1463,7 +1463,7 @@ void tpm_dev_release(struct device *dev)
 EXPORT_SYMBOL_GPL(tpm_dev_release);
 
 /*
- * Called from tpm_<specific>.c probe function only for devices 
+ * Called from tpm_<specific>.c probe function only for devices
  * the driver has determined it should claim.  Prior to calling
  * this function the specific probe function has called pci_enable_device
  * upon errant exit from this function specific probe function should call
-- 
cgit 


From 9deb0eb7cad450cd942a0eca11a198f6d24cb3d4 Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Date: Sun, 6 Oct 2013 12:00:51 -0600
Subject: tpm: Rename tpm.c to tpm-interface.c

This is preparation for making the tpm module multi-file. kbuild does
not like having a .c file with the same name as a module. We wish to
keep the tpm module name so that userspace doesn't see this change.

tpm-interface.c is chosen because the next several commits in the series
migrate items into tpm-sysfs.c, tpm-dev.c and tpm-class.c. All that will
be left is tpm command processing and interfacing code.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
---
 drivers/char/tpm/Makefile        |    2 +
 drivers/char/tpm/tpm-interface.c | 1554 ++++++++++++++++++++++++++++++++++++++
 drivers/char/tpm/tpm.c           | 1554 --------------------------------------
 3 files changed, 1556 insertions(+), 1554 deletions(-)
 create mode 100644 drivers/char/tpm/tpm-interface.c
 delete mode 100644 drivers/char/tpm/tpm.c

diff --git a/drivers/char/tpm/Makefile b/drivers/char/tpm/Makefile
index eb41ff97d0ad..83b8a9d7527e 100644
--- a/drivers/char/tpm/Makefile
+++ b/drivers/char/tpm/Makefile
@@ -2,6 +2,8 @@
 # Makefile for the kernel tpm device drivers.
 #
 obj-$(CONFIG_TCG_TPM) += tpm.o
+tpm-y := tpm-interface.o
+
 ifdef CONFIG_ACPI
 	obj-$(CONFIG_TCG_TPM) += tpm_bios.o
 	tpm_bios-objs += tpm_eventlog.o tpm_acpi.o tpm_ppi.o
diff --git a/drivers/char/tpm/tpm-interface.c b/drivers/char/tpm/tpm-interface.c
new file mode 100644
index 000000000000..6ae41d337630
--- /dev/null
+++ b/drivers/char/tpm/tpm-interface.c
@@ -0,0 +1,1554 @@
+/*
+ * Copyright (C) 2004 IBM Corporation
+ *
+ * Authors:
+ * Leendert van Doorn <leendert@watson.ibm.com>
+ * Dave Safford <safford@watson.ibm.com>
+ * Reiner Sailer <sailer@watson.ibm.com>
+ * Kylene Hall <kjhall@us.ibm.com>
+ *
+ * Maintained by: <tpmdd-devel@lists.sourceforge.net>
+ *
+ * Device driver for TCG/TCPA TPM (trusted platform module).
+ * Specifications at www.trustedcomputinggroup.org
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2 of the
+ * License.
+ *
+ * Note, the TPM chip is not interrupt driven (only polling)
+ * and can have very long timeouts (minutes!). Hence the unusual
+ * calls to msleep.
+ *
+ */
+
+#include <linux/poll.h>
+#include <linux/slab.h>
+#include <linux/mutex.h>
+#include <linux/spinlock.h>
+#include <linux/freezer.h>
+
+#include "tpm.h"
+#include "tpm_eventlog.h"
+
+enum tpm_duration {
+	TPM_SHORT = 0,
+	TPM_MEDIUM = 1,
+	TPM_LONG = 2,
+	TPM_UNDEFINED,
+};
+
+#define TPM_MAX_ORDINAL 243
+#define TSC_MAX_ORDINAL 12
+#define TPM_PROTECTED_COMMAND 0x00
+#define TPM_CONNECTION_COMMAND 0x40
+
+/*
+ * Bug workaround - some TPM's don't flush the most
+ * recently changed pcr on suspend, so force the flush
+ * with an extend to the selected _unused_ non-volatile pcr.
+ */
+static int tpm_suspend_pcr;
+module_param_named(suspend_pcr, tpm_suspend_pcr, uint, 0644);
+MODULE_PARM_DESC(suspend_pcr,
+		 "PCR to use for dummy writes to faciltate flush on suspend.");
+
+static LIST_HEAD(tpm_chip_list);
+static DEFINE_SPINLOCK(driver_lock);
+static DECLARE_BITMAP(dev_mask, TPM_NUM_DEVICES);
+
+/*
+ * Array with one entry per ordinal defining the maximum amount
+ * of time the chip could take to return the result.  The ordinal
+ * designation of short, medium or long is defined in a table in
+ * TCG Specification TPM Main Part 2 TPM Structures Section 17. The
+ * values of the SHORT, MEDIUM, and LONG durations are retrieved
+ * from the chip during initialization with a call to tpm_get_timeouts.
+ */
+static const u8 tpm_ordinal_duration[TPM_MAX_ORDINAL] = {
+	TPM_UNDEFINED,		/* 0 */
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,		/* 5 */
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_SHORT,		/* 10 */
+	TPM_SHORT,
+	TPM_MEDIUM,
+	TPM_LONG,
+	TPM_LONG,
+	TPM_MEDIUM,		/* 15 */
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_MEDIUM,
+	TPM_LONG,
+	TPM_SHORT,		/* 20 */
+	TPM_SHORT,
+	TPM_MEDIUM,
+	TPM_MEDIUM,
+	TPM_MEDIUM,
+	TPM_SHORT,		/* 25 */
+	TPM_SHORT,
+	TPM_MEDIUM,
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_MEDIUM,		/* 30 */
+	TPM_LONG,
+	TPM_MEDIUM,
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_SHORT,		/* 35 */
+	TPM_MEDIUM,
+	TPM_MEDIUM,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_MEDIUM,		/* 40 */
+	TPM_LONG,
+	TPM_MEDIUM,
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_SHORT,		/* 45 */
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_LONG,
+	TPM_MEDIUM,		/* 50 */
+	TPM_MEDIUM,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,		/* 55 */
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_MEDIUM,		/* 60 */
+	TPM_MEDIUM,
+	TPM_MEDIUM,
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_MEDIUM,		/* 65 */
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_SHORT,		/* 70 */
+	TPM_SHORT,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,		/* 75 */
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_LONG,		/* 80 */
+	TPM_UNDEFINED,
+	TPM_MEDIUM,
+	TPM_LONG,
+	TPM_SHORT,
+	TPM_UNDEFINED,		/* 85 */
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_SHORT,		/* 90 */
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_UNDEFINED,		/* 95 */
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_MEDIUM,		/* 100 */
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,		/* 105 */
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_SHORT,		/* 110 */
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_SHORT,		/* 115 */
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_LONG,		/* 120 */
+	TPM_LONG,
+	TPM_MEDIUM,
+	TPM_UNDEFINED,
+	TPM_SHORT,
+	TPM_SHORT,		/* 125 */
+	TPM_SHORT,
+	TPM_LONG,
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_SHORT,		/* 130 */
+	TPM_MEDIUM,
+	TPM_UNDEFINED,
+	TPM_SHORT,
+	TPM_MEDIUM,
+	TPM_UNDEFINED,		/* 135 */
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_SHORT,		/* 140 */
+	TPM_SHORT,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,		/* 145 */
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_SHORT,		/* 150 */
+	TPM_MEDIUM,
+	TPM_MEDIUM,
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_UNDEFINED,		/* 155 */
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_SHORT,		/* 160 */
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,		/* 165 */
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_LONG,		/* 170 */
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,		/* 175 */
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_MEDIUM,		/* 180 */
+	TPM_SHORT,
+	TPM_MEDIUM,
+	TPM_MEDIUM,
+	TPM_MEDIUM,
+	TPM_MEDIUM,		/* 185 */
+	TPM_SHORT,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,		/* 190 */
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,		/* 195 */
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_SHORT,		/* 200 */
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_SHORT,
+	TPM_SHORT,		/* 205 */
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_MEDIUM,		/* 210 */
+	TPM_UNDEFINED,
+	TPM_MEDIUM,
+	TPM_MEDIUM,
+	TPM_MEDIUM,
+	TPM_UNDEFINED,		/* 215 */
+	TPM_MEDIUM,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_SHORT,
+	TPM_SHORT,		/* 220 */
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_SHORT,
+	TPM_UNDEFINED,		/* 225 */
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_SHORT,		/* 230 */
+	TPM_LONG,
+	TPM_MEDIUM,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,		/* 235 */
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_UNDEFINED,
+	TPM_SHORT,		/* 240 */
+	TPM_UNDEFINED,
+	TPM_MEDIUM,
+};
+
+static void user_reader_timeout(unsigned long ptr)
+{
+	struct tpm_chip *chip = (struct tpm_chip *) ptr;
+
+	schedule_work(&chip->work);
+}
+
+static void timeout_work(struct work_struct *work)
+{
+	struct tpm_chip *chip = container_of(work, struct tpm_chip, work);
+
+	mutex_lock(&chip->buffer_mutex);
+	atomic_set(&chip->data_pending, 0);
+	memset(chip->data_buffer, 0, TPM_BUFSIZE);
+	mutex_unlock(&chip->buffer_mutex);
+}
+
+/*
+ * Returns max number of jiffies to wait
+ */
+unsigned long tpm_calc_ordinal_duration(struct tpm_chip *chip,
+					   u32 ordinal)
+{
+	int duration_idx = TPM_UNDEFINED;
+	int duration = 0;
+	u8 category = (ordinal >> 24) & 0xFF;
+
+	if ((category == TPM_PROTECTED_COMMAND && ordinal < TPM_MAX_ORDINAL) ||
+	    (category == TPM_CONNECTION_COMMAND && ordinal < TSC_MAX_ORDINAL))
+		duration_idx = tpm_ordinal_duration[ordinal];
+
+	if (duration_idx != TPM_UNDEFINED)
+		duration = chip->vendor.duration[duration_idx];
+	if (duration <= 0)
+		return 2 * 60 * HZ;
+	else
+		return duration;
+}
+EXPORT_SYMBOL_GPL(tpm_calc_ordinal_duration);
+
+/*
+ * Internal kernel interface to transmit TPM commands
+ */
+static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf,
+			    size_t bufsiz)
+{
+	ssize_t rc;
+	u32 count, ordinal;
+	unsigned long stop;
+
+	if (bufsiz > TPM_BUFSIZE)
+		bufsiz = TPM_BUFSIZE;
+
+	count = be32_to_cpu(*((__be32 *) (buf + 2)));
+	ordinal = be32_to_cpu(*((__be32 *) (buf + 6)));
+	if (count == 0)
+		return -ENODATA;
+	if (count > bufsiz) {
+		dev_err(chip->dev,
+			"invalid count value %x %zx\n", count, bufsiz);
+		return -E2BIG;
+	}
+
+	mutex_lock(&chip->tpm_mutex);
+
+	rc = chip->vendor.send(chip, (u8 *) buf, count);
+	if (rc < 0) {
+		dev_err(chip->dev,
+			"tpm_transmit: tpm_send: error %zd\n", rc);
+		goto out;
+	}
+
+	if (chip->vendor.irq)
+		goto out_recv;
+
+	stop = jiffies + tpm_calc_ordinal_duration(chip, ordinal);
+	do {
+		u8 status = chip->vendor.status(chip);
+		if ((status & chip->vendor.req_complete_mask) ==
+		    chip->vendor.req_complete_val)
+			goto out_recv;
+
+		if (chip->vendor.req_canceled(chip, status)) {
+			dev_err(chip->dev, "Operation Canceled\n");
+			rc = -ECANCELED;
+			goto out;
+		}
+
+		msleep(TPM_TIMEOUT);	/* CHECK */
+		rmb();
+	} while (time_before(jiffies, stop));
+
+	chip->vendor.cancel(chip);
+	dev_err(chip->dev, "Operation Timed out\n");
+	rc = -ETIME;
+	goto out;
+
+out_recv:
+	rc = chip->vendor.recv(chip, (u8 *) buf, bufsiz);
+	if (rc < 0)
+		dev_err(chip->dev,
+			"tpm_transmit: tpm_recv: error %zd\n", rc);
+out:
+	mutex_unlock(&chip->tpm_mutex);
+	return rc;
+}
+
+#define TPM_DIGEST_SIZE 20
+#define TPM_RET_CODE_IDX 6
+
+enum tpm_capabilities {
+	TPM_CAP_FLAG = cpu_to_be32(4),
+	TPM_CAP_PROP = cpu_to_be32(5),
+	CAP_VERSION_1_1 = cpu_to_be32(0x06),
+	CAP_VERSION_1_2 = cpu_to_be32(0x1A)
+};
+
+enum tpm_sub_capabilities {
+	TPM_CAP_PROP_PCR = cpu_to_be32(0x101),
+	TPM_CAP_PROP_MANUFACTURER = cpu_to_be32(0x103),
+	TPM_CAP_FLAG_PERM = cpu_to_be32(0x108),
+	TPM_CAP_FLAG_VOL = cpu_to_be32(0x109),
+	TPM_CAP_PROP_OWNER = cpu_to_be32(0x111),
+	TPM_CAP_PROP_TIS_TIMEOUT = cpu_to_be32(0x115),
+	TPM_CAP_PROP_TIS_DURATION = cpu_to_be32(0x120),
+
+};
+
+static ssize_t transmit_cmd(struct tpm_chip *chip, struct tpm_cmd_t *cmd,
+			    int len, const char *desc)
+{
+	int err;
+
+	len = tpm_transmit(chip, (u8 *) cmd, len);
+	if (len <  0)
+		return len;
+	else if (len < TPM_HEADER_SIZE)
+		return -EFAULT;
+
+	err = be32_to_cpu(cmd->header.out.return_code);
+	if (err != 0 && desc)
+		dev_err(chip->dev, "A TPM error (%d) occurred %s\n", err, desc);
+
+	return err;
+}
+
+#define TPM_INTERNAL_RESULT_SIZE 200
+#define TPM_TAG_RQU_COMMAND cpu_to_be16(193)
+#define TPM_ORD_GET_CAP cpu_to_be32(101)
+#define TPM_ORD_GET_RANDOM cpu_to_be32(70)
+
+static const struct tpm_input_header tpm_getcap_header = {
+	.tag = TPM_TAG_RQU_COMMAND,
+	.length = cpu_to_be32(22),
+	.ordinal = TPM_ORD_GET_CAP
+};
+
+ssize_t tpm_getcap(struct device *dev, __be32 subcap_id, cap_t *cap,
+		   const char *desc)
+{
+	struct tpm_cmd_t tpm_cmd;
+	int rc;
+	struct tpm_chip *chip = dev_get_drvdata(dev);
+
+	tpm_cmd.header.in = tpm_getcap_header;
+	if (subcap_id == CAP_VERSION_1_1 || subcap_id == CAP_VERSION_1_2) {
+		tpm_cmd.params.getcap_in.cap = subcap_id;
+		/*subcap field not necessary */
+		tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(0);
+		tpm_cmd.header.in.length -= cpu_to_be32(sizeof(__be32));
+	} else {
+		if (subcap_id == TPM_CAP_FLAG_PERM ||
+		    subcap_id == TPM_CAP_FLAG_VOL)
+			tpm_cmd.params.getcap_in.cap = TPM_CAP_FLAG;
+		else
+			tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP;
+		tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
+		tpm_cmd.params.getcap_in.subcap = subcap_id;
+	}
+	rc = transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE, desc);
+	if (!rc)
+		*cap = tpm_cmd.params.getcap_out.cap;
+	return rc;
+}
+
+void tpm_gen_interrupt(struct tpm_chip *chip)
+{
+	struct	tpm_cmd_t tpm_cmd;
+	ssize_t rc;
+
+	tpm_cmd.header.in = tpm_getcap_header;
+	tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP;
+	tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
+	tpm_cmd.params.getcap_in.subcap = TPM_CAP_PROP_TIS_TIMEOUT;
+
+	rc = transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE,
+			"attempting to determine the timeouts");
+}
+EXPORT_SYMBOL_GPL(tpm_gen_interrupt);
+
+#define TPM_ORD_STARTUP cpu_to_be32(153)
+#define TPM_ST_CLEAR cpu_to_be16(1)
+#define TPM_ST_STATE cpu_to_be16(2)
+#define TPM_ST_DEACTIVATED cpu_to_be16(3)
+static const struct tpm_input_header tpm_startup_header = {
+	.tag = TPM_TAG_RQU_COMMAND,
+	.length = cpu_to_be32(12),
+	.ordinal = TPM_ORD_STARTUP
+};
+
+static int tpm_startup(struct tpm_chip *chip, __be16 startup_type)
+{
+	struct tpm_cmd_t start_cmd;
+	start_cmd.header.in = tpm_startup_header;
+	start_cmd.params.startup_in.startup_type = startup_type;
+	return transmit_cmd(chip, &start_cmd, TPM_INTERNAL_RESULT_SIZE,
+			    "attempting to start the TPM");
+}
+
+int tpm_get_timeouts(struct tpm_chip *chip)
+{
+	struct tpm_cmd_t tpm_cmd;
+	struct timeout_t *timeout_cap;
+	struct duration_t *duration_cap;
+	ssize_t rc;
+	u32 timeout;
+	unsigned int scale = 1;
+
+	tpm_cmd.header.in = tpm_getcap_header;
+	tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP;
+	tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
+	tpm_cmd.params.getcap_in.subcap = TPM_CAP_PROP_TIS_TIMEOUT;
+	rc = transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE, NULL);
+
+	if (rc == TPM_ERR_INVALID_POSTINIT) {
+		/* The TPM is not started, we are the first to talk to it.
+		   Execute a startup command. */
+		dev_info(chip->dev, "Issuing TPM_STARTUP");
+		if (tpm_startup(chip, TPM_ST_CLEAR))
+			return rc;
+
+		tpm_cmd.header.in = tpm_getcap_header;
+		tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP;
+		tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
+		tpm_cmd.params.getcap_in.subcap = TPM_CAP_PROP_TIS_TIMEOUT;
+		rc = transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE,
+				  NULL);
+	}
+	if (rc) {
+		dev_err(chip->dev,
+			"A TPM error (%zd) occurred attempting to determine the timeouts\n",
+			rc);
+		goto duration;
+	}
+
+	if (be32_to_cpu(tpm_cmd.header.out.return_code) != 0 ||
+	    be32_to_cpu(tpm_cmd.header.out.length)
+	    != sizeof(tpm_cmd.header.out) + sizeof(u32) + 4 * sizeof(u32))
+		return -EINVAL;
+
+	timeout_cap = &tpm_cmd.params.getcap_out.cap.timeout;
+	/* Don't overwrite default if value is 0 */
+	timeout = be32_to_cpu(timeout_cap->a);
+	if (timeout && timeout < 1000) {
+		/* timeouts in msec rather usec */
+		scale = 1000;
+		chip->vendor.timeout_adjusted = true;
+	}
+	if (timeout)
+		chip->vendor.timeout_a = usecs_to_jiffies(timeout * scale);
+	timeout = be32_to_cpu(timeout_cap->b);
+	if (timeout)
+		chip->vendor.timeout_b = usecs_to_jiffies(timeout * scale);
+	timeout = be32_to_cpu(timeout_cap->c);
+	if (timeout)
+		chip->vendor.timeout_c = usecs_to_jiffies(timeout * scale);
+	timeout = be32_to_cpu(timeout_cap->d);
+	if (timeout)
+		chip->vendor.timeout_d = usecs_to_jiffies(timeout * scale);
+
+duration:
+	tpm_cmd.header.in = tpm_getcap_header;
+	tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP;
+	tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
+	tpm_cmd.params.getcap_in.subcap = TPM_CAP_PROP_TIS_DURATION;
+
+	rc = transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE,
+			"attempting to determine the durations");
+	if (rc)
+		return rc;
+
+	if (be32_to_cpu(tpm_cmd.header.out.return_code) != 0 ||
+	    be32_to_cpu(tpm_cmd.header.out.length)
+	    != sizeof(tpm_cmd.header.out) + sizeof(u32) + 3 * sizeof(u32))
+		return -EINVAL;
+
+	duration_cap = &tpm_cmd.params.getcap_out.cap.duration;
+	chip->vendor.duration[TPM_SHORT] =
+	    usecs_to_jiffies(be32_to_cpu(duration_cap->tpm_short));
+	chip->vendor.duration[TPM_MEDIUM] =
+	    usecs_to_jiffies(be32_to_cpu(duration_cap->tpm_medium));
+	chip->vendor.duration[TPM_LONG] =
+	    usecs_to_jiffies(be32_to_cpu(duration_cap->tpm_long));
+
+	/* The Broadcom BCM0102 chipset in a Dell Latitude D820 gets the above
+	 * value wrong and apparently reports msecs rather than usecs. So we
+	 * fix up the resulting too-small TPM_SHORT value to make things work.
+	 * We also scale the TPM_MEDIUM and -_LONG values by 1000.
+	 */
+	if (chip->vendor.duration[TPM_SHORT] < (HZ / 100)) {
+		chip->vendor.duration[TPM_SHORT] = HZ;
+		chip->vendor.duration[TPM_MEDIUM] *= 1000;
+		chip->vendor.duration[TPM_LONG] *= 1000;
+		chip->vendor.duration_adjusted = true;
+		dev_info(chip->dev, "Adjusting TPM timeout parameters.");
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(tpm_get_timeouts);
+
+#define TPM_ORD_CONTINUE_SELFTEST 83
+#define CONTINUE_SELFTEST_RESULT_SIZE 10
+
+static struct tpm_input_header continue_selftest_header = {
+	.tag = TPM_TAG_RQU_COMMAND,
+	.length = cpu_to_be32(10),
+	.ordinal = cpu_to_be32(TPM_ORD_CONTINUE_SELFTEST),
+};
+
+/**
+ * tpm_continue_selftest -- run TPM's selftest
+ * @chip: TPM chip to use
+ *
+ * Returns 0 on success, < 0 in case of fatal error or a value > 0 representing
+ * a TPM error code.
+ */
+static int tpm_continue_selftest(struct tpm_chip *chip)
+{
+	int rc;
+	struct tpm_cmd_t cmd;
+
+	cmd.header.in = continue_selftest_header;
+	rc = transmit_cmd(chip, &cmd, CONTINUE_SELFTEST_RESULT_SIZE,
+			  "continue selftest");
+	return rc;
+}
+
+ssize_t tpm_show_enabled(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	cap_t cap;
+	ssize_t rc;
+
+	rc = tpm_getcap(dev, TPM_CAP_FLAG_PERM, &cap,
+			 "attempting to determine the permanent enabled state");
+	if (rc)
+		return 0;
+
+	rc = sprintf(buf, "%d\n", !cap.perm_flags.disable);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(tpm_show_enabled);
+
+ssize_t tpm_show_active(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	cap_t cap;
+	ssize_t rc;
+
+	rc = tpm_getcap(dev, TPM_CAP_FLAG_PERM, &cap,
+			 "attempting to determine the permanent active state");
+	if (rc)
+		return 0;
+
+	rc = sprintf(buf, "%d\n", !cap.perm_flags.deactivated);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(tpm_show_active);
+
+ssize_t tpm_show_owned(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	cap_t cap;
+	ssize_t rc;
+
+	rc = tpm_getcap(dev, TPM_CAP_PROP_OWNER, &cap,
+			 "attempting to determine the owner state");
+	if (rc)
+		return 0;
+
+	rc = sprintf(buf, "%d\n", cap.owned);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(tpm_show_owned);
+
+ssize_t tpm_show_temp_deactivated(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	cap_t cap;
+	ssize_t rc;
+
+	rc = tpm_getcap(dev, TPM_CAP_FLAG_VOL, &cap,
+			 "attempting to determine the temporary state");
+	if (rc)
+		return 0;
+
+	rc = sprintf(buf, "%d\n", cap.stclear_flags.deactivated);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(tpm_show_temp_deactivated);
+
+/*
+ * tpm_chip_find_get - return tpm_chip for given chip number
+ */
+static struct tpm_chip *tpm_chip_find_get(int chip_num)
+{
+	struct tpm_chip *pos, *chip = NULL;
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(pos, &tpm_chip_list, list) {
+		if (chip_num != TPM_ANY_NUM && chip_num != pos->dev_num)
+			continue;
+
+		if (try_module_get(pos->dev->driver->owner)) {
+			chip = pos;
+			break;
+		}
+	}
+	rcu_read_unlock();
+	return chip;
+}
+
+#define TPM_ORDINAL_PCRREAD cpu_to_be32(21)
+#define READ_PCR_RESULT_SIZE 30
+static struct tpm_input_header pcrread_header = {
+	.tag = TPM_TAG_RQU_COMMAND,
+	.length = cpu_to_be32(14),
+	.ordinal = TPM_ORDINAL_PCRREAD
+};
+
+static int __tpm_pcr_read(struct tpm_chip *chip, int pcr_idx, u8 *res_buf)
+{
+	int rc;
+	struct tpm_cmd_t cmd;
+
+	cmd.header.in = pcrread_header;
+	cmd.params.pcrread_in.pcr_idx = cpu_to_be32(pcr_idx);
+	rc = transmit_cmd(chip, &cmd, READ_PCR_RESULT_SIZE,
+			  "attempting to read a pcr value");
+
+	if (rc == 0)
+		memcpy(res_buf, cmd.params.pcrread_out.pcr_result,
+		       TPM_DIGEST_SIZE);
+	return rc;
+}
+
+/**
+ * tpm_pcr_read - read a pcr value
+ * @chip_num:	tpm idx # or ANY
+ * @pcr_idx:	pcr idx to retrieve
+ * @res_buf:	TPM_PCR value
+ *		size of res_buf is 20 bytes (or NULL if you don't care)
+ *
+ * The TPM driver should be built-in, but for whatever reason it
+ * isn't, protect against the chip disappearing, by incrementing
+ * the module usage count.
+ */
+int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf)
+{
+	struct tpm_chip *chip;
+	int rc;
+
+	chip = tpm_chip_find_get(chip_num);
+	if (chip == NULL)
+		return -ENODEV;
+	rc = __tpm_pcr_read(chip, pcr_idx, res_buf);
+	tpm_chip_put(chip);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(tpm_pcr_read);
+
+/**
+ * tpm_pcr_extend - extend pcr value with hash
+ * @chip_num:	tpm idx # or AN&
+ * @pcr_idx:	pcr idx to extend
+ * @hash:	hash value used to extend pcr value
+ *
+ * The TPM driver should be built-in, but for whatever reason it
+ * isn't, protect against the chip disappearing, by incrementing
+ * the module usage count.
+ */
+#define TPM_ORD_PCR_EXTEND cpu_to_be32(20)
+#define EXTEND_PCR_RESULT_SIZE 34
+static struct tpm_input_header pcrextend_header = {
+	.tag = TPM_TAG_RQU_COMMAND,
+	.length = cpu_to_be32(34),
+	.ordinal = TPM_ORD_PCR_EXTEND
+};
+
+int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash)
+{
+	struct tpm_cmd_t cmd;
+	int rc;
+	struct tpm_chip *chip;
+
+	chip = tpm_chip_find_get(chip_num);
+	if (chip == NULL)
+		return -ENODEV;
+
+	cmd.header.in = pcrextend_header;
+	cmd.params.pcrextend_in.pcr_idx = cpu_to_be32(pcr_idx);
+	memcpy(cmd.params.pcrextend_in.hash, hash, TPM_DIGEST_SIZE);
+	rc = transmit_cmd(chip, &cmd, EXTEND_PCR_RESULT_SIZE,
+			  "attempting extend a PCR value");
+
+	tpm_chip_put(chip);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(tpm_pcr_extend);
+
+/**
+ * tpm_do_selftest - have the TPM continue its selftest and wait until it
+ *                   can receive further commands
+ * @chip: TPM chip to use
+ *
+ * Returns 0 on success, < 0 in case of fatal error or a value > 0 representing
+ * a TPM error code.
+ */
+int tpm_do_selftest(struct tpm_chip *chip)
+{
+	int rc;
+	unsigned int loops;
+	unsigned int delay_msec = 100;
+	unsigned long duration;
+	struct tpm_cmd_t cmd;
+
+	duration = tpm_calc_ordinal_duration(chip, TPM_ORD_CONTINUE_SELFTEST);
+
+	loops = jiffies_to_msecs(duration) / delay_msec;
+
+	rc = tpm_continue_selftest(chip);
+	/* This may fail if there was no TPM driver during a suspend/resume
+	 * cycle; some may return 10 (BAD_ORDINAL), others 28 (FAILEDSELFTEST)
+	 */
+	if (rc)
+		return rc;
+
+	do {
+		/* Attempt to read a PCR value */
+		cmd.header.in = pcrread_header;
+		cmd.params.pcrread_in.pcr_idx = cpu_to_be32(0);
+		rc = tpm_transmit(chip, (u8 *) &cmd, READ_PCR_RESULT_SIZE);
+		/* Some buggy TPMs will not respond to tpm_tis_ready() for
+		 * around 300ms while the self test is ongoing, keep trying
+		 * until the self test duration expires. */
+		if (rc == -ETIME) {
+			dev_info(chip->dev, HW_ERR "TPM command timed out during continue self test");
+			msleep(delay_msec);
+			continue;
+		}
+
+		if (rc < TPM_HEADER_SIZE)
+			return -EFAULT;
+
+		rc = be32_to_cpu(cmd.header.out.return_code);
+		if (rc == TPM_ERR_DISABLED || rc == TPM_ERR_DEACTIVATED) {
+			dev_info(chip->dev,
+				 "TPM is disabled/deactivated (0x%X)\n", rc);
+			/* TPM is disabled and/or deactivated; driver can
+			 * proceed and TPM does handle commands for
+			 * suspend/resume correctly
+			 */
+			return 0;
+		}
+		if (rc != TPM_WARN_DOING_SELFTEST)
+			return rc;
+		msleep(delay_msec);
+	} while (--loops > 0);
+
+	return rc;
+}
+EXPORT_SYMBOL_GPL(tpm_do_selftest);
+
+int tpm_send(u32 chip_num, void *cmd, size_t buflen)
+{
+	struct tpm_chip *chip;
+	int rc;
+
+	chip = tpm_chip_find_get(chip_num);
+	if (chip == NULL)
+		return -ENODEV;
+
+	rc = transmit_cmd(chip, cmd, buflen, "attempting tpm_cmd");
+
+	tpm_chip_put(chip);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(tpm_send);
+
+ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr,
+		      char *buf)
+{
+	cap_t cap;
+	u8 digest[TPM_DIGEST_SIZE];
+	ssize_t rc;
+	int i, j, num_pcrs;
+	char *str = buf;
+	struct tpm_chip *chip = dev_get_drvdata(dev);
+
+	rc = tpm_getcap(dev, TPM_CAP_PROP_PCR, &cap,
+			"attempting to determine the number of PCRS");
+	if (rc)
+		return 0;
+
+	num_pcrs = be32_to_cpu(cap.num_pcrs);
+	for (i = 0; i < num_pcrs; i++) {
+		rc = __tpm_pcr_read(chip, i, digest);
+		if (rc)
+			break;
+		str += sprintf(str, "PCR-%02d: ", i);
+		for (j = 0; j < TPM_DIGEST_SIZE; j++)
+			str += sprintf(str, "%02X ", digest[j]);
+		str += sprintf(str, "\n");
+	}
+	return str - buf;
+}
+EXPORT_SYMBOL_GPL(tpm_show_pcrs);
+
+#define  READ_PUBEK_RESULT_SIZE 314
+#define TPM_ORD_READPUBEK cpu_to_be32(124)
+static struct tpm_input_header tpm_readpubek_header = {
+	.tag = TPM_TAG_RQU_COMMAND,
+	.length = cpu_to_be32(30),
+	.ordinal = TPM_ORD_READPUBEK
+};
+
+ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr,
+		       char *buf)
+{
+	u8 *data;
+	struct tpm_cmd_t tpm_cmd;
+	ssize_t err;
+	int i, rc;
+	char *str = buf;
+
+	struct tpm_chip *chip = dev_get_drvdata(dev);
+
+	tpm_cmd.header.in = tpm_readpubek_header;
+	err = transmit_cmd(chip, &tpm_cmd, READ_PUBEK_RESULT_SIZE,
+			"attempting to read the PUBEK");
+	if (err)
+		goto out;
+
+	/*
+	   ignore header 10 bytes
+	   algorithm 32 bits (1 == RSA )
+	   encscheme 16 bits
+	   sigscheme 16 bits
+	   parameters (RSA 12->bytes: keybit, #primes, expbit)
+	   keylenbytes 32 bits
+	   256 byte modulus
+	   ignore checksum 20 bytes
+	 */
+	data = tpm_cmd.params.readpubek_out_buffer;
+	str +=
+	    sprintf(str,
+		    "Algorithm: %02X %02X %02X %02X\n"
+		    "Encscheme: %02X %02X\n"
+		    "Sigscheme: %02X %02X\n"
+		    "Parameters: %02X %02X %02X %02X "
+		    "%02X %02X %02X %02X "
+		    "%02X %02X %02X %02X\n"
+		    "Modulus length: %d\n"
+		    "Modulus:\n",
+		    data[0], data[1], data[2], data[3],
+		    data[4], data[5],
+		    data[6], data[7],
+		    data[12], data[13], data[14], data[15],
+		    data[16], data[17], data[18], data[19],
+		    data[20], data[21], data[22], data[23],
+		    be32_to_cpu(*((__be32 *) (data + 24))));
+
+	for (i = 0; i < 256; i++) {
+		str += sprintf(str, "%02X ", data[i + 28]);
+		if ((i + 1) % 16 == 0)
+			str += sprintf(str, "\n");
+	}
+out:
+	rc = str - buf;
+	return rc;
+}
+EXPORT_SYMBOL_GPL(tpm_show_pubek);
+
+
+ssize_t tpm_show_caps(struct device *dev, struct device_attribute *attr,
+		      char *buf)
+{
+	cap_t cap;
+	ssize_t rc;
+	char *str = buf;
+
+	rc = tpm_getcap(dev, TPM_CAP_PROP_MANUFACTURER, &cap,
+			"attempting to determine the manufacturer");
+	if (rc)
+		return 0;
+	str += sprintf(str, "Manufacturer: 0x%x\n",
+		       be32_to_cpu(cap.manufacturer_id));
+
+	/* Try to get a TPM version 1.2 TPM_CAP_VERSION_INFO */
+	rc = tpm_getcap(dev, CAP_VERSION_1_2, &cap,
+			 "attempting to determine the 1.2 version");
+	if (!rc) {
+		str += sprintf(str,
+			       "TCG version: %d.%d\nFirmware version: %d.%d\n",
+			       cap.tpm_version_1_2.Major,
+			       cap.tpm_version_1_2.Minor,
+			       cap.tpm_version_1_2.revMajor,
+			       cap.tpm_version_1_2.revMinor);
+	} else {
+		/* Otherwise just use TPM_STRUCT_VER */
+		rc = tpm_getcap(dev, CAP_VERSION_1_1, &cap,
+				"attempting to determine the 1.1 version");
+		if (rc)
+			return 0;
+		str += sprintf(str,
+			       "TCG version: %d.%d\nFirmware version: %d.%d\n",
+			       cap.tpm_version.Major,
+			       cap.tpm_version.Minor,
+			       cap.tpm_version.revMajor,
+			       cap.tpm_version.revMinor);
+	}
+
+	return str - buf;
+}
+EXPORT_SYMBOL_GPL(tpm_show_caps);
+
+ssize_t tpm_show_durations(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	struct tpm_chip *chip = dev_get_drvdata(dev);
+
+	if (chip->vendor.duration[TPM_LONG] == 0)
+		return 0;
+
+	return sprintf(buf, "%d %d %d [%s]\n",
+		       jiffies_to_usecs(chip->vendor.duration[TPM_SHORT]),
+		       jiffies_to_usecs(chip->vendor.duration[TPM_MEDIUM]),
+		       jiffies_to_usecs(chip->vendor.duration[TPM_LONG]),
+		       chip->vendor.duration_adjusted
+		       ? "adjusted" : "original");
+}
+EXPORT_SYMBOL_GPL(tpm_show_durations);
+
+ssize_t tpm_show_timeouts(struct device *dev, struct device_attribute *attr,
+			  char *buf)
+{
+	struct tpm_chip *chip = dev_get_drvdata(dev);
+
+	return sprintf(buf, "%d %d %d %d [%s]\n",
+		       jiffies_to_usecs(chip->vendor.timeout_a),
+		       jiffies_to_usecs(chip->vendor.timeout_b),
+		       jiffies_to_usecs(chip->vendor.timeout_c),
+		       jiffies_to_usecs(chip->vendor.timeout_d),
+		       chip->vendor.timeout_adjusted
+		       ? "adjusted" : "original");
+}
+EXPORT_SYMBOL_GPL(tpm_show_timeouts);
+
+ssize_t tpm_store_cancel(struct device *dev, struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	struct tpm_chip *chip = dev_get_drvdata(dev);
+	if (chip == NULL)
+		return 0;
+
+	chip->vendor.cancel(chip);
+	return count;
+}
+EXPORT_SYMBOL_GPL(tpm_store_cancel);
+
+static bool wait_for_tpm_stat_cond(struct tpm_chip *chip, u8 mask,
+					bool check_cancel, bool *canceled)
+{
+	u8 status = chip->vendor.status(chip);
+
+	*canceled = false;
+	if ((status & mask) == mask)
+		return true;
+	if (check_cancel && chip->vendor.req_canceled(chip, status)) {
+		*canceled = true;
+		return true;
+	}
+	return false;
+}
+
+int wait_for_tpm_stat(struct tpm_chip *chip, u8 mask, unsigned long timeout,
+		      wait_queue_head_t *queue, bool check_cancel)
+{
+	unsigned long stop;
+	long rc;
+	u8 status;
+	bool canceled = false;
+
+	/* check current status */
+	status = chip->vendor.status(chip);
+	if ((status & mask) == mask)
+		return 0;
+
+	stop = jiffies + timeout;
+
+	if (chip->vendor.irq) {
+again:
+		timeout = stop - jiffies;
+		if ((long)timeout <= 0)
+			return -ETIME;
+		rc = wait_event_interruptible_timeout(*queue,
+			wait_for_tpm_stat_cond(chip, mask, check_cancel,
+					       &canceled),
+			timeout);
+		if (rc > 0) {
+			if (canceled)
+				return -ECANCELED;
+			return 0;
+		}
+		if (rc == -ERESTARTSYS && freezing(current)) {
+			clear_thread_flag(TIF_SIGPENDING);
+			goto again;
+		}
+	} else {
+		do {
+			msleep(TPM_TIMEOUT);
+			status = chip->vendor.status(chip);
+			if ((status & mask) == mask)
+				return 0;
+		} while (time_before(jiffies, stop));
+	}
+	return -ETIME;
+}
+EXPORT_SYMBOL_GPL(wait_for_tpm_stat);
+/*
+ * Device file system interface to the TPM
+ *
+ * It's assured that the chip will be opened just once,
+ * by the check of is_open variable, which is protected
+ * by driver_lock.
+ */
+int tpm_open(struct inode *inode, struct file *file)
+{
+	struct miscdevice *misc = file->private_data;
+	struct tpm_chip *chip = container_of(misc, struct tpm_chip,
+					     vendor.miscdev);
+
+	if (test_and_set_bit(0, &chip->is_open)) {
+		dev_dbg(chip->dev, "Another process owns this TPM\n");
+		return -EBUSY;
+	}
+
+	chip->data_buffer = kzalloc(TPM_BUFSIZE, GFP_KERNEL);
+	if (chip->data_buffer == NULL) {
+		clear_bit(0, &chip->is_open);
+		return -ENOMEM;
+	}
+
+	atomic_set(&chip->data_pending, 0);
+
+	file->private_data = chip;
+	get_device(chip->dev);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(tpm_open);
+
+/*
+ * Called on file close
+ */
+int tpm_release(struct inode *inode, struct file *file)
+{
+	struct tpm_chip *chip = file->private_data;
+
+	del_singleshot_timer_sync(&chip->user_read_timer);
+	flush_work(&chip->work);
+	file->private_data = NULL;
+	atomic_set(&chip->data_pending, 0);
+	kzfree(chip->data_buffer);
+	clear_bit(0, &chip->is_open);
+	put_device(chip->dev);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(tpm_release);
+
+ssize_t tpm_write(struct file *file, const char __user *buf,
+		  size_t size, loff_t *off)
+{
+	struct tpm_chip *chip = file->private_data;
+	size_t in_size = size;
+	ssize_t out_size;
+
+	/* cannot perform a write until the read has cleared
+	   either via tpm_read or a user_read_timer timeout.
+	   This also prevents splitted buffered writes from blocking here.
+	*/
+	if (atomic_read(&chip->data_pending) != 0)
+		return -EBUSY;
+
+	if (in_size > TPM_BUFSIZE)
+		return -E2BIG;
+
+	mutex_lock(&chip->buffer_mutex);
+
+	if (copy_from_user
+	    (chip->data_buffer, (void __user *) buf, in_size)) {
+		mutex_unlock(&chip->buffer_mutex);
+		return -EFAULT;
+	}
+
+	/* atomic tpm command send and result receive */
+	out_size = tpm_transmit(chip, chip->data_buffer, TPM_BUFSIZE);
+	if (out_size < 0) {
+		mutex_unlock(&chip->buffer_mutex);
+		return out_size;
+	}
+
+	atomic_set(&chip->data_pending, out_size);
+	mutex_unlock(&chip->buffer_mutex);
+
+	/* Set a timeout by which the reader must come claim the result */
+	mod_timer(&chip->user_read_timer, jiffies + (60 * HZ));
+
+	return in_size;
+}
+EXPORT_SYMBOL_GPL(tpm_write);
+
+ssize_t tpm_read(struct file *file, char __user *buf,
+		 size_t size, loff_t *off)
+{
+	struct tpm_chip *chip = file->private_data;
+	ssize_t ret_size;
+	int rc;
+
+	del_singleshot_timer_sync(&chip->user_read_timer);
+	flush_work(&chip->work);
+	ret_size = atomic_read(&chip->data_pending);
+	if (ret_size > 0) {	/* relay data */
+		ssize_t orig_ret_size = ret_size;
+		if (size < ret_size)
+			ret_size = size;
+
+		mutex_lock(&chip->buffer_mutex);
+		rc = copy_to_user(buf, chip->data_buffer, ret_size);
+		memset(chip->data_buffer, 0, orig_ret_size);
+		if (rc)
+			ret_size = -EFAULT;
+
+		mutex_unlock(&chip->buffer_mutex);
+	}
+
+	atomic_set(&chip->data_pending, 0);
+
+	return ret_size;
+}
+EXPORT_SYMBOL_GPL(tpm_read);
+
+void tpm_remove_hardware(struct device *dev)
+{
+	struct tpm_chip *chip = dev_get_drvdata(dev);
+
+	if (chip == NULL) {
+		dev_err(dev, "No device data found\n");
+		return;
+	}
+
+	spin_lock(&driver_lock);
+	list_del_rcu(&chip->list);
+	spin_unlock(&driver_lock);
+	synchronize_rcu();
+
+	misc_deregister(&chip->vendor.miscdev);
+	sysfs_remove_group(&dev->kobj, chip->vendor.attr_group);
+	tpm_remove_ppi(&dev->kobj);
+	tpm_bios_log_teardown(chip->bios_dir);
+
+	/* write it this way to be explicit (chip->dev == dev) */
+	put_device(chip->dev);
+}
+EXPORT_SYMBOL_GPL(tpm_remove_hardware);
+
+#define TPM_ORD_SAVESTATE cpu_to_be32(152)
+#define SAVESTATE_RESULT_SIZE 10
+
+static struct tpm_input_header savestate_header = {
+	.tag = TPM_TAG_RQU_COMMAND,
+	.length = cpu_to_be32(10),
+	.ordinal = TPM_ORD_SAVESTATE
+};
+
+/*
+ * We are about to suspend. Save the TPM state
+ * so that it can be restored.
+ */
+int tpm_pm_suspend(struct device *dev)
+{
+	struct tpm_chip *chip = dev_get_drvdata(dev);
+	struct tpm_cmd_t cmd;
+	int rc, try;
+
+	u8 dummy_hash[TPM_DIGEST_SIZE] = { 0 };
+
+	if (chip == NULL)
+		return -ENODEV;
+
+	/* for buggy tpm, flush pcrs with extend to selected dummy */
+	if (tpm_suspend_pcr) {
+		cmd.header.in = pcrextend_header;
+		cmd.params.pcrextend_in.pcr_idx = cpu_to_be32(tpm_suspend_pcr);
+		memcpy(cmd.params.pcrextend_in.hash, dummy_hash,
+		       TPM_DIGEST_SIZE);
+		rc = transmit_cmd(chip, &cmd, EXTEND_PCR_RESULT_SIZE,
+				  "extending dummy pcr before suspend");
+	}
+
+	/* now do the actual savestate */
+	for (try = 0; try < TPM_RETRY; try++) {
+		cmd.header.in = savestate_header;
+		rc = transmit_cmd(chip, &cmd, SAVESTATE_RESULT_SIZE, NULL);
+
+		/*
+		 * If the TPM indicates that it is too busy to respond to
+		 * this command then retry before giving up.  It can take
+		 * several seconds for this TPM to be ready.
+		 *
+		 * This can happen if the TPM has already been sent the
+		 * SaveState command before the driver has loaded.  TCG 1.2
+		 * specification states that any communication after SaveState
+		 * may cause the TPM to invalidate previously saved state.
+		 */
+		if (rc != TPM_WARN_RETRY)
+			break;
+		msleep(TPM_TIMEOUT_RETRY);
+	}
+
+	if (rc)
+		dev_err(chip->dev,
+			"Error (%d) sending savestate before suspend\n", rc);
+	else if (try > 0)
+		dev_warn(chip->dev, "TPM savestate took %dms\n",
+			 try * TPM_TIMEOUT_RETRY);
+
+	return rc;
+}
+EXPORT_SYMBOL_GPL(tpm_pm_suspend);
+
+/*
+ * Resume from a power safe. The BIOS already restored
+ * the TPM state.
+ */
+int tpm_pm_resume(struct device *dev)
+{
+	struct tpm_chip *chip = dev_get_drvdata(dev);
+
+	if (chip == NULL)
+		return -ENODEV;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(tpm_pm_resume);
+
+#define TPM_GETRANDOM_RESULT_SIZE	18
+static struct tpm_input_header tpm_getrandom_header = {
+	.tag = TPM_TAG_RQU_COMMAND,
+	.length = cpu_to_be32(14),
+	.ordinal = TPM_ORD_GET_RANDOM
+};
+
+/**
+ * tpm_get_random() - Get random bytes from the tpm's RNG
+ * @chip_num: A specific chip number for the request or TPM_ANY_NUM
+ * @out: destination buffer for the random bytes
+ * @max: the max number of bytes to write to @out
+ *
+ * Returns < 0 on error and the number of bytes read on success
+ */
+int tpm_get_random(u32 chip_num, u8 *out, size_t max)
+{
+	struct tpm_chip *chip;
+	struct tpm_cmd_t tpm_cmd;
+	u32 recd, num_bytes = min_t(u32, max, TPM_MAX_RNG_DATA);
+	int err, total = 0, retries = 5;
+	u8 *dest = out;
+
+	chip = tpm_chip_find_get(chip_num);
+	if (chip == NULL)
+		return -ENODEV;
+
+	if (!out || !num_bytes || max > TPM_MAX_RNG_DATA)
+		return -EINVAL;
+
+	do {
+		tpm_cmd.header.in = tpm_getrandom_header;
+		tpm_cmd.params.getrandom_in.num_bytes = cpu_to_be32(num_bytes);
+
+		err = transmit_cmd(chip, &tpm_cmd,
+				   TPM_GETRANDOM_RESULT_SIZE + num_bytes,
+				   "attempting get random");
+		if (err)
+			break;
+
+		recd = be32_to_cpu(tpm_cmd.params.getrandom_out.rng_data_len);
+		memcpy(dest, tpm_cmd.params.getrandom_out.rng_data, recd);
+
+		dest += recd;
+		total += recd;
+		num_bytes -= recd;
+	} while (retries-- && total < max);
+
+	return total ? total : -EIO;
+}
+EXPORT_SYMBOL_GPL(tpm_get_random);
+
+/* In case vendor provided release function, call it too.*/
+
+void tpm_dev_vendor_release(struct tpm_chip *chip)
+{
+	if (!chip)
+		return;
+
+	if (chip->vendor.release)
+		chip->vendor.release(chip->dev);
+
+	clear_bit(chip->dev_num, dev_mask);
+}
+EXPORT_SYMBOL_GPL(tpm_dev_vendor_release);
+
+
+/*
+ * Once all references to platform device are down to 0,
+ * release all allocated structures.
+ */
+void tpm_dev_release(struct device *dev)
+{
+	struct tpm_chip *chip = dev_get_drvdata(dev);
+
+	if (!chip)
+		return;
+
+	tpm_dev_vendor_release(chip);
+
+	chip->release(dev);
+	kfree(chip);
+}
+EXPORT_SYMBOL_GPL(tpm_dev_release);
+
+/*
+ * Called from tpm_<specific>.c probe function only for devices
+ * the driver has determined it should claim.  Prior to calling
+ * this function the specific probe function has called pci_enable_device
+ * upon errant exit from this function specific probe function should call
+ * pci_disable_device
+ */
+struct tpm_chip *tpm_register_hardware(struct device *dev,
+					const struct tpm_vendor_specific *entry)
+{
+	struct tpm_chip *chip;
+
+	/* Driver specific per-device data */
+	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
+
+	if (chip == NULL)
+		return NULL;
+
+	mutex_init(&chip->buffer_mutex);
+	mutex_init(&chip->tpm_mutex);
+	INIT_LIST_HEAD(&chip->list);
+
+	INIT_WORK(&chip->work, timeout_work);
+
+	setup_timer(&chip->user_read_timer, user_reader_timeout,
+			(unsigned long)chip);
+
+	memcpy(&chip->vendor, entry, sizeof(struct tpm_vendor_specific));
+
+	chip->dev_num = find_first_zero_bit(dev_mask, TPM_NUM_DEVICES);
+
+	if (chip->dev_num >= TPM_NUM_DEVICES) {
+		dev_err(dev, "No available tpm device numbers\n");
+		goto out_free;
+	} else if (chip->dev_num == 0)
+		chip->vendor.miscdev.minor = TPM_MINOR;
+	else
+		chip->vendor.miscdev.minor = MISC_DYNAMIC_MINOR;
+
+	set_bit(chip->dev_num, dev_mask);
+
+	scnprintf(chip->devname, sizeof(chip->devname), "%s%d", "tpm",
+		  chip->dev_num);
+	chip->vendor.miscdev.name = chip->devname;
+
+	chip->vendor.miscdev.parent = dev;
+	chip->dev = get_device(dev);
+	chip->release = dev->release;
+	dev->release = tpm_dev_release;
+	dev_set_drvdata(dev, chip);
+
+	if (misc_register(&chip->vendor.miscdev)) {
+		dev_err(chip->dev,
+			"unable to misc_register %s, minor %d\n",
+			chip->vendor.miscdev.name,
+			chip->vendor.miscdev.minor);
+		goto put_device;
+	}
+
+	if (sysfs_create_group(&dev->kobj, chip->vendor.attr_group)) {
+		misc_deregister(&chip->vendor.miscdev);
+		goto put_device;
+	}
+
+	if (tpm_add_ppi(&dev->kobj)) {
+		misc_deregister(&chip->vendor.miscdev);
+		goto put_device;
+	}
+
+	chip->bios_dir = tpm_bios_log_setup(chip->devname);
+
+	/* Make chip available */
+	spin_lock(&driver_lock);
+	list_add_rcu(&chip->list, &tpm_chip_list);
+	spin_unlock(&driver_lock);
+
+	return chip;
+
+put_device:
+	put_device(chip->dev);
+out_free:
+	kfree(chip);
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(tpm_register_hardware);
+
+MODULE_AUTHOR("Leendert van Doorn (leendert@watson.ibm.com)");
+MODULE_DESCRIPTION("TPM Driver");
+MODULE_VERSION("2.0");
+MODULE_LICENSE("GPL");
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
deleted file mode 100644
index 6ae41d337630..000000000000
--- a/drivers/char/tpm/tpm.c
+++ /dev/null
@@ -1,1554 +0,0 @@
-/*
- * Copyright (C) 2004 IBM Corporation
- *
- * Authors:
- * Leendert van Doorn <leendert@watson.ibm.com>
- * Dave Safford <safford@watson.ibm.com>
- * Reiner Sailer <sailer@watson.ibm.com>
- * Kylene Hall <kjhall@us.ibm.com>
- *
- * Maintained by: <tpmdd-devel@lists.sourceforge.net>
- *
- * Device driver for TCG/TCPA TPM (trusted platform module).
- * Specifications at www.trustedcomputinggroup.org
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation, version 2 of the
- * License.
- *
- * Note, the TPM chip is not interrupt driven (only polling)
- * and can have very long timeouts (minutes!). Hence the unusual
- * calls to msleep.
- *
- */
-
-#include <linux/poll.h>
-#include <linux/slab.h>
-#include <linux/mutex.h>
-#include <linux/spinlock.h>
-#include <linux/freezer.h>
-
-#include "tpm.h"
-#include "tpm_eventlog.h"
-
-enum tpm_duration {
-	TPM_SHORT = 0,
-	TPM_MEDIUM = 1,
-	TPM_LONG = 2,
-	TPM_UNDEFINED,
-};
-
-#define TPM_MAX_ORDINAL 243
-#define TSC_MAX_ORDINAL 12
-#define TPM_PROTECTED_COMMAND 0x00
-#define TPM_CONNECTION_COMMAND 0x40
-
-/*
- * Bug workaround - some TPM's don't flush the most
- * recently changed pcr on suspend, so force the flush
- * with an extend to the selected _unused_ non-volatile pcr.
- */
-static int tpm_suspend_pcr;
-module_param_named(suspend_pcr, tpm_suspend_pcr, uint, 0644);
-MODULE_PARM_DESC(suspend_pcr,
-		 "PCR to use for dummy writes to faciltate flush on suspend.");
-
-static LIST_HEAD(tpm_chip_list);
-static DEFINE_SPINLOCK(driver_lock);
-static DECLARE_BITMAP(dev_mask, TPM_NUM_DEVICES);
-
-/*
- * Array with one entry per ordinal defining the maximum amount
- * of time the chip could take to return the result.  The ordinal
- * designation of short, medium or long is defined in a table in
- * TCG Specification TPM Main Part 2 TPM Structures Section 17. The
- * values of the SHORT, MEDIUM, and LONG durations are retrieved
- * from the chip during initialization with a call to tpm_get_timeouts.
- */
-static const u8 tpm_ordinal_duration[TPM_MAX_ORDINAL] = {
-	TPM_UNDEFINED,		/* 0 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,		/* 5 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_SHORT,		/* 10 */
-	TPM_SHORT,
-	TPM_MEDIUM,
-	TPM_LONG,
-	TPM_LONG,
-	TPM_MEDIUM,		/* 15 */
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_MEDIUM,
-	TPM_LONG,
-	TPM_SHORT,		/* 20 */
-	TPM_SHORT,
-	TPM_MEDIUM,
-	TPM_MEDIUM,
-	TPM_MEDIUM,
-	TPM_SHORT,		/* 25 */
-	TPM_SHORT,
-	TPM_MEDIUM,
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_MEDIUM,		/* 30 */
-	TPM_LONG,
-	TPM_MEDIUM,
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_SHORT,		/* 35 */
-	TPM_MEDIUM,
-	TPM_MEDIUM,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_MEDIUM,		/* 40 */
-	TPM_LONG,
-	TPM_MEDIUM,
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_SHORT,		/* 45 */
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_LONG,
-	TPM_MEDIUM,		/* 50 */
-	TPM_MEDIUM,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,		/* 55 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_MEDIUM,		/* 60 */
-	TPM_MEDIUM,
-	TPM_MEDIUM,
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_MEDIUM,		/* 65 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_SHORT,		/* 70 */
-	TPM_SHORT,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,		/* 75 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_LONG,		/* 80 */
-	TPM_UNDEFINED,
-	TPM_MEDIUM,
-	TPM_LONG,
-	TPM_SHORT,
-	TPM_UNDEFINED,		/* 85 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_SHORT,		/* 90 */
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_UNDEFINED,		/* 95 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_MEDIUM,		/* 100 */
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,		/* 105 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_SHORT,		/* 110 */
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_SHORT,		/* 115 */
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_LONG,		/* 120 */
-	TPM_LONG,
-	TPM_MEDIUM,
-	TPM_UNDEFINED,
-	TPM_SHORT,
-	TPM_SHORT,		/* 125 */
-	TPM_SHORT,
-	TPM_LONG,
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_SHORT,		/* 130 */
-	TPM_MEDIUM,
-	TPM_UNDEFINED,
-	TPM_SHORT,
-	TPM_MEDIUM,
-	TPM_UNDEFINED,		/* 135 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_SHORT,		/* 140 */
-	TPM_SHORT,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,		/* 145 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_SHORT,		/* 150 */
-	TPM_MEDIUM,
-	TPM_MEDIUM,
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_UNDEFINED,		/* 155 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_SHORT,		/* 160 */
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,		/* 165 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_LONG,		/* 170 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,		/* 175 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_MEDIUM,		/* 180 */
-	TPM_SHORT,
-	TPM_MEDIUM,
-	TPM_MEDIUM,
-	TPM_MEDIUM,
-	TPM_MEDIUM,		/* 185 */
-	TPM_SHORT,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,		/* 190 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,		/* 195 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_SHORT,		/* 200 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_SHORT,
-	TPM_SHORT,		/* 205 */
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_MEDIUM,		/* 210 */
-	TPM_UNDEFINED,
-	TPM_MEDIUM,
-	TPM_MEDIUM,
-	TPM_MEDIUM,
-	TPM_UNDEFINED,		/* 215 */
-	TPM_MEDIUM,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_SHORT,
-	TPM_SHORT,		/* 220 */
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_SHORT,
-	TPM_UNDEFINED,		/* 225 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_SHORT,		/* 230 */
-	TPM_LONG,
-	TPM_MEDIUM,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,		/* 235 */
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_UNDEFINED,
-	TPM_SHORT,		/* 240 */
-	TPM_UNDEFINED,
-	TPM_MEDIUM,
-};
-
-static void user_reader_timeout(unsigned long ptr)
-{
-	struct tpm_chip *chip = (struct tpm_chip *) ptr;
-
-	schedule_work(&chip->work);
-}
-
-static void timeout_work(struct work_struct *work)
-{
-	struct tpm_chip *chip = container_of(work, struct tpm_chip, work);
-
-	mutex_lock(&chip->buffer_mutex);
-	atomic_set(&chip->data_pending, 0);
-	memset(chip->data_buffer, 0, TPM_BUFSIZE);
-	mutex_unlock(&chip->buffer_mutex);
-}
-
-/*
- * Returns max number of jiffies to wait
- */
-unsigned long tpm_calc_ordinal_duration(struct tpm_chip *chip,
-					   u32 ordinal)
-{
-	int duration_idx = TPM_UNDEFINED;
-	int duration = 0;
-	u8 category = (ordinal >> 24) & 0xFF;
-
-	if ((category == TPM_PROTECTED_COMMAND && ordinal < TPM_MAX_ORDINAL) ||
-	    (category == TPM_CONNECTION_COMMAND && ordinal < TSC_MAX_ORDINAL))
-		duration_idx = tpm_ordinal_duration[ordinal];
-
-	if (duration_idx != TPM_UNDEFINED)
-		duration = chip->vendor.duration[duration_idx];
-	if (duration <= 0)
-		return 2 * 60 * HZ;
-	else
-		return duration;
-}
-EXPORT_SYMBOL_GPL(tpm_calc_ordinal_duration);
-
-/*
- * Internal kernel interface to transmit TPM commands
- */
-static ssize_t tpm_transmit(struct tpm_chip *chip, const char *buf,
-			    size_t bufsiz)
-{
-	ssize_t rc;
-	u32 count, ordinal;
-	unsigned long stop;
-
-	if (bufsiz > TPM_BUFSIZE)
-		bufsiz = TPM_BUFSIZE;
-
-	count = be32_to_cpu(*((__be32 *) (buf + 2)));
-	ordinal = be32_to_cpu(*((__be32 *) (buf + 6)));
-	if (count == 0)
-		return -ENODATA;
-	if (count > bufsiz) {
-		dev_err(chip->dev,
-			"invalid count value %x %zx\n", count, bufsiz);
-		return -E2BIG;
-	}
-
-	mutex_lock(&chip->tpm_mutex);
-
-	rc = chip->vendor.send(chip, (u8 *) buf, count);
-	if (rc < 0) {
-		dev_err(chip->dev,
-			"tpm_transmit: tpm_send: error %zd\n", rc);
-		goto out;
-	}
-
-	if (chip->vendor.irq)
-		goto out_recv;
-
-	stop = jiffies + tpm_calc_ordinal_duration(chip, ordinal);
-	do {
-		u8 status = chip->vendor.status(chip);
-		if ((status & chip->vendor.req_complete_mask) ==
-		    chip->vendor.req_complete_val)
-			goto out_recv;
-
-		if (chip->vendor.req_canceled(chip, status)) {
-			dev_err(chip->dev, "Operation Canceled\n");
-			rc = -ECANCELED;
-			goto out;
-		}
-
-		msleep(TPM_TIMEOUT);	/* CHECK */
-		rmb();
-	} while (time_before(jiffies, stop));
-
-	chip->vendor.cancel(chip);
-	dev_err(chip->dev, "Operation Timed out\n");
-	rc = -ETIME;
-	goto out;
-
-out_recv:
-	rc = chip->vendor.recv(chip, (u8 *) buf, bufsiz);
-	if (rc < 0)
-		dev_err(chip->dev,
-			"tpm_transmit: tpm_recv: error %zd\n", rc);
-out:
-	mutex_unlock(&chip->tpm_mutex);
-	return rc;
-}
-
-#define TPM_DIGEST_SIZE 20
-#define TPM_RET_CODE_IDX 6
-
-enum tpm_capabilities {
-	TPM_CAP_FLAG = cpu_to_be32(4),
-	TPM_CAP_PROP = cpu_to_be32(5),
-	CAP_VERSION_1_1 = cpu_to_be32(0x06),
-	CAP_VERSION_1_2 = cpu_to_be32(0x1A)
-};
-
-enum tpm_sub_capabilities {
-	TPM_CAP_PROP_PCR = cpu_to_be32(0x101),
-	TPM_CAP_PROP_MANUFACTURER = cpu_to_be32(0x103),
-	TPM_CAP_FLAG_PERM = cpu_to_be32(0x108),
-	TPM_CAP_FLAG_VOL = cpu_to_be32(0x109),
-	TPM_CAP_PROP_OWNER = cpu_to_be32(0x111),
-	TPM_CAP_PROP_TIS_TIMEOUT = cpu_to_be32(0x115),
-	TPM_CAP_PROP_TIS_DURATION = cpu_to_be32(0x120),
-
-};
-
-static ssize_t transmit_cmd(struct tpm_chip *chip, struct tpm_cmd_t *cmd,
-			    int len, const char *desc)
-{
-	int err;
-
-	len = tpm_transmit(chip, (u8 *) cmd, len);
-	if (len <  0)
-		return len;
-	else if (len < TPM_HEADER_SIZE)
-		return -EFAULT;
-
-	err = be32_to_cpu(cmd->header.out.return_code);
-	if (err != 0 && desc)
-		dev_err(chip->dev, "A TPM error (%d) occurred %s\n", err, desc);
-
-	return err;
-}
-
-#define TPM_INTERNAL_RESULT_SIZE 200
-#define TPM_TAG_RQU_COMMAND cpu_to_be16(193)
-#define TPM_ORD_GET_CAP cpu_to_be32(101)
-#define TPM_ORD_GET_RANDOM cpu_to_be32(70)
-
-static const struct tpm_input_header tpm_getcap_header = {
-	.tag = TPM_TAG_RQU_COMMAND,
-	.length = cpu_to_be32(22),
-	.ordinal = TPM_ORD_GET_CAP
-};
-
-ssize_t tpm_getcap(struct device *dev, __be32 subcap_id, cap_t *cap,
-		   const char *desc)
-{
-	struct tpm_cmd_t tpm_cmd;
-	int rc;
-	struct tpm_chip *chip = dev_get_drvdata(dev);
-
-	tpm_cmd.header.in = tpm_getcap_header;
-	if (subcap_id == CAP_VERSION_1_1 || subcap_id == CAP_VERSION_1_2) {
-		tpm_cmd.params.getcap_in.cap = subcap_id;
-		/*subcap field not necessary */
-		tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(0);
-		tpm_cmd.header.in.length -= cpu_to_be32(sizeof(__be32));
-	} else {
-		if (subcap_id == TPM_CAP_FLAG_PERM ||
-		    subcap_id == TPM_CAP_FLAG_VOL)
-			tpm_cmd.params.getcap_in.cap = TPM_CAP_FLAG;
-		else
-			tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP;
-		tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
-		tpm_cmd.params.getcap_in.subcap = subcap_id;
-	}
-	rc = transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE, desc);
-	if (!rc)
-		*cap = tpm_cmd.params.getcap_out.cap;
-	return rc;
-}
-
-void tpm_gen_interrupt(struct tpm_chip *chip)
-{
-	struct	tpm_cmd_t tpm_cmd;
-	ssize_t rc;
-
-	tpm_cmd.header.in = tpm_getcap_header;
-	tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP;
-	tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
-	tpm_cmd.params.getcap_in.subcap = TPM_CAP_PROP_TIS_TIMEOUT;
-
-	rc = transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE,
-			"attempting to determine the timeouts");
-}
-EXPORT_SYMBOL_GPL(tpm_gen_interrupt);
-
-#define TPM_ORD_STARTUP cpu_to_be32(153)
-#define TPM_ST_CLEAR cpu_to_be16(1)
-#define TPM_ST_STATE cpu_to_be16(2)
-#define TPM_ST_DEACTIVATED cpu_to_be16(3)
-static const struct tpm_input_header tpm_startup_header = {
-	.tag = TPM_TAG_RQU_COMMAND,
-	.length = cpu_to_be32(12),
-	.ordinal = TPM_ORD_STARTUP
-};
-
-static int tpm_startup(struct tpm_chip *chip, __be16 startup_type)
-{
-	struct tpm_cmd_t start_cmd;
-	start_cmd.header.in = tpm_startup_header;
-	start_cmd.params.startup_in.startup_type = startup_type;
-	return transmit_cmd(chip, &start_cmd, TPM_INTERNAL_RESULT_SIZE,
-			    "attempting to start the TPM");
-}
-
-int tpm_get_timeouts(struct tpm_chip *chip)
-{
-	struct tpm_cmd_t tpm_cmd;
-	struct timeout_t *timeout_cap;
-	struct duration_t *duration_cap;
-	ssize_t rc;
-	u32 timeout;
-	unsigned int scale = 1;
-
-	tpm_cmd.header.in = tpm_getcap_header;
-	tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP;
-	tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
-	tpm_cmd.params.getcap_in.subcap = TPM_CAP_PROP_TIS_TIMEOUT;
-	rc = transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE, NULL);
-
-	if (rc == TPM_ERR_INVALID_POSTINIT) {
-		/* The TPM is not started, we are the first to talk to it.
-		   Execute a startup command. */
-		dev_info(chip->dev, "Issuing TPM_STARTUP");
-		if (tpm_startup(chip, TPM_ST_CLEAR))
-			return rc;
-
-		tpm_cmd.header.in = tpm_getcap_header;
-		tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP;
-		tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
-		tpm_cmd.params.getcap_in.subcap = TPM_CAP_PROP_TIS_TIMEOUT;
-		rc = transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE,
-				  NULL);
-	}
-	if (rc) {
-		dev_err(chip->dev,
-			"A TPM error (%zd) occurred attempting to determine the timeouts\n",
-			rc);
-		goto duration;
-	}
-
-	if (be32_to_cpu(tpm_cmd.header.out.return_code) != 0 ||
-	    be32_to_cpu(tpm_cmd.header.out.length)
-	    != sizeof(tpm_cmd.header.out) + sizeof(u32) + 4 * sizeof(u32))
-		return -EINVAL;
-
-	timeout_cap = &tpm_cmd.params.getcap_out.cap.timeout;
-	/* Don't overwrite default if value is 0 */
-	timeout = be32_to_cpu(timeout_cap->a);
-	if (timeout && timeout < 1000) {
-		/* timeouts in msec rather usec */
-		scale = 1000;
-		chip->vendor.timeout_adjusted = true;
-	}
-	if (timeout)
-		chip->vendor.timeout_a = usecs_to_jiffies(timeout * scale);
-	timeout = be32_to_cpu(timeout_cap->b);
-	if (timeout)
-		chip->vendor.timeout_b = usecs_to_jiffies(timeout * scale);
-	timeout = be32_to_cpu(timeout_cap->c);
-	if (timeout)
-		chip->vendor.timeout_c = usecs_to_jiffies(timeout * scale);
-	timeout = be32_to_cpu(timeout_cap->d);
-	if (timeout)
-		chip->vendor.timeout_d = usecs_to_jiffies(timeout * scale);
-
-duration:
-	tpm_cmd.header.in = tpm_getcap_header;
-	tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP;
-	tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
-	tpm_cmd.params.getcap_in.subcap = TPM_CAP_PROP_TIS_DURATION;
-
-	rc = transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE,
-			"attempting to determine the durations");
-	if (rc)
-		return rc;
-
-	if (be32_to_cpu(tpm_cmd.header.out.return_code) != 0 ||
-	    be32_to_cpu(tpm_cmd.header.out.length)
-	    != sizeof(tpm_cmd.header.out) + sizeof(u32) + 3 * sizeof(u32))
-		return -EINVAL;
-
-	duration_cap = &tpm_cmd.params.getcap_out.cap.duration;
-	chip->vendor.duration[TPM_SHORT] =
-	    usecs_to_jiffies(be32_to_cpu(duration_cap->tpm_short));
-	chip->vendor.duration[TPM_MEDIUM] =
-	    usecs_to_jiffies(be32_to_cpu(duration_cap->tpm_medium));
-	chip->vendor.duration[TPM_LONG] =
-	    usecs_to_jiffies(be32_to_cpu(duration_cap->tpm_long));
-
-	/* The Broadcom BCM0102 chipset in a Dell Latitude D820 gets the above
-	 * value wrong and apparently reports msecs rather than usecs. So we
-	 * fix up the resulting too-small TPM_SHORT value to make things work.
-	 * We also scale the TPM_MEDIUM and -_LONG values by 1000.
-	 */
-	if (chip->vendor.duration[TPM_SHORT] < (HZ / 100)) {
-		chip->vendor.duration[TPM_SHORT] = HZ;
-		chip->vendor.duration[TPM_MEDIUM] *= 1000;
-		chip->vendor.duration[TPM_LONG] *= 1000;
-		chip->vendor.duration_adjusted = true;
-		dev_info(chip->dev, "Adjusting TPM timeout parameters.");
-	}
-	return 0;
-}
-EXPORT_SYMBOL_GPL(tpm_get_timeouts);
-
-#define TPM_ORD_CONTINUE_SELFTEST 83
-#define CONTINUE_SELFTEST_RESULT_SIZE 10
-
-static struct tpm_input_header continue_selftest_header = {
-	.tag = TPM_TAG_RQU_COMMAND,
-	.length = cpu_to_be32(10),
-	.ordinal = cpu_to_be32(TPM_ORD_CONTINUE_SELFTEST),
-};
-
-/**
- * tpm_continue_selftest -- run TPM's selftest
- * @chip: TPM chip to use
- *
- * Returns 0 on success, < 0 in case of fatal error or a value > 0 representing
- * a TPM error code.
- */
-static int tpm_continue_selftest(struct tpm_chip *chip)
-{
-	int rc;
-	struct tpm_cmd_t cmd;
-
-	cmd.header.in = continue_selftest_header;
-	rc = transmit_cmd(chip, &cmd, CONTINUE_SELFTEST_RESULT_SIZE,
-			  "continue selftest");
-	return rc;
-}
-
-ssize_t tpm_show_enabled(struct device *dev, struct device_attribute *attr,
-			char *buf)
-{
-	cap_t cap;
-	ssize_t rc;
-
-	rc = tpm_getcap(dev, TPM_CAP_FLAG_PERM, &cap,
-			 "attempting to determine the permanent enabled state");
-	if (rc)
-		return 0;
-
-	rc = sprintf(buf, "%d\n", !cap.perm_flags.disable);
-	return rc;
-}
-EXPORT_SYMBOL_GPL(tpm_show_enabled);
-
-ssize_t tpm_show_active(struct device *dev, struct device_attribute *attr,
-			char *buf)
-{
-	cap_t cap;
-	ssize_t rc;
-
-	rc = tpm_getcap(dev, TPM_CAP_FLAG_PERM, &cap,
-			 "attempting to determine the permanent active state");
-	if (rc)
-		return 0;
-
-	rc = sprintf(buf, "%d\n", !cap.perm_flags.deactivated);
-	return rc;
-}
-EXPORT_SYMBOL_GPL(tpm_show_active);
-
-ssize_t tpm_show_owned(struct device *dev, struct device_attribute *attr,
-			char *buf)
-{
-	cap_t cap;
-	ssize_t rc;
-
-	rc = tpm_getcap(dev, TPM_CAP_PROP_OWNER, &cap,
-			 "attempting to determine the owner state");
-	if (rc)
-		return 0;
-
-	rc = sprintf(buf, "%d\n", cap.owned);
-	return rc;
-}
-EXPORT_SYMBOL_GPL(tpm_show_owned);
-
-ssize_t tpm_show_temp_deactivated(struct device *dev,
-				struct device_attribute *attr, char *buf)
-{
-	cap_t cap;
-	ssize_t rc;
-
-	rc = tpm_getcap(dev, TPM_CAP_FLAG_VOL, &cap,
-			 "attempting to determine the temporary state");
-	if (rc)
-		return 0;
-
-	rc = sprintf(buf, "%d\n", cap.stclear_flags.deactivated);
-	return rc;
-}
-EXPORT_SYMBOL_GPL(tpm_show_temp_deactivated);
-
-/*
- * tpm_chip_find_get - return tpm_chip for given chip number
- */
-static struct tpm_chip *tpm_chip_find_get(int chip_num)
-{
-	struct tpm_chip *pos, *chip = NULL;
-
-	rcu_read_lock();
-	list_for_each_entry_rcu(pos, &tpm_chip_list, list) {
-		if (chip_num != TPM_ANY_NUM && chip_num != pos->dev_num)
-			continue;
-
-		if (try_module_get(pos->dev->driver->owner)) {
-			chip = pos;
-			break;
-		}
-	}
-	rcu_read_unlock();
-	return chip;
-}
-
-#define TPM_ORDINAL_PCRREAD cpu_to_be32(21)
-#define READ_PCR_RESULT_SIZE 30
-static struct tpm_input_header pcrread_header = {
-	.tag = TPM_TAG_RQU_COMMAND,
-	.length = cpu_to_be32(14),
-	.ordinal = TPM_ORDINAL_PCRREAD
-};
-
-static int __tpm_pcr_read(struct tpm_chip *chip, int pcr_idx, u8 *res_buf)
-{
-	int rc;
-	struct tpm_cmd_t cmd;
-
-	cmd.header.in = pcrread_header;
-	cmd.params.pcrread_in.pcr_idx = cpu_to_be32(pcr_idx);
-	rc = transmit_cmd(chip, &cmd, READ_PCR_RESULT_SIZE,
-			  "attempting to read a pcr value");
-
-	if (rc == 0)
-		memcpy(res_buf, cmd.params.pcrread_out.pcr_result,
-		       TPM_DIGEST_SIZE);
-	return rc;
-}
-
-/**
- * tpm_pcr_read - read a pcr value
- * @chip_num:	tpm idx # or ANY
- * @pcr_idx:	pcr idx to retrieve
- * @res_buf:	TPM_PCR value
- *		size of res_buf is 20 bytes (or NULL if you don't care)
- *
- * The TPM driver should be built-in, but for whatever reason it
- * isn't, protect against the chip disappearing, by incrementing
- * the module usage count.
- */
-int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf)
-{
-	struct tpm_chip *chip;
-	int rc;
-
-	chip = tpm_chip_find_get(chip_num);
-	if (chip == NULL)
-		return -ENODEV;
-	rc = __tpm_pcr_read(chip, pcr_idx, res_buf);
-	tpm_chip_put(chip);
-	return rc;
-}
-EXPORT_SYMBOL_GPL(tpm_pcr_read);
-
-/**
- * tpm_pcr_extend - extend pcr value with hash
- * @chip_num:	tpm idx # or AN&
- * @pcr_idx:	pcr idx to extend
- * @hash:	hash value used to extend pcr value
- *
- * The TPM driver should be built-in, but for whatever reason it
- * isn't, protect against the chip disappearing, by incrementing
- * the module usage count.
- */
-#define TPM_ORD_PCR_EXTEND cpu_to_be32(20)
-#define EXTEND_PCR_RESULT_SIZE 34
-static struct tpm_input_header pcrextend_header = {
-	.tag = TPM_TAG_RQU_COMMAND,
-	.length = cpu_to_be32(34),
-	.ordinal = TPM_ORD_PCR_EXTEND
-};
-
-int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash)
-{
-	struct tpm_cmd_t cmd;
-	int rc;
-	struct tpm_chip *chip;
-
-	chip = tpm_chip_find_get(chip_num);
-	if (chip == NULL)
-		return -ENODEV;
-
-	cmd.header.in = pcrextend_header;
-	cmd.params.pcrextend_in.pcr_idx = cpu_to_be32(pcr_idx);
-	memcpy(cmd.params.pcrextend_in.hash, hash, TPM_DIGEST_SIZE);
-	rc = transmit_cmd(chip, &cmd, EXTEND_PCR_RESULT_SIZE,
-			  "attempting extend a PCR value");
-
-	tpm_chip_put(chip);
-	return rc;
-}
-EXPORT_SYMBOL_GPL(tpm_pcr_extend);
-
-/**
- * tpm_do_selftest - have the TPM continue its selftest and wait until it
- *                   can receive further commands
- * @chip: TPM chip to use
- *
- * Returns 0 on success, < 0 in case of fatal error or a value > 0 representing
- * a TPM error code.
- */
-int tpm_do_selftest(struct tpm_chip *chip)
-{
-	int rc;
-	unsigned int loops;
-	unsigned int delay_msec = 100;
-	unsigned long duration;
-	struct tpm_cmd_t cmd;
-
-	duration = tpm_calc_ordinal_duration(chip, TPM_ORD_CONTINUE_SELFTEST);
-
-	loops = jiffies_to_msecs(duration) / delay_msec;
-
-	rc = tpm_continue_selftest(chip);
-	/* This may fail if there was no TPM driver during a suspend/resume
-	 * cycle; some may return 10 (BAD_ORDINAL), others 28 (FAILEDSELFTEST)
-	 */
-	if (rc)
-		return rc;
-
-	do {
-		/* Attempt to read a PCR value */
-		cmd.header.in = pcrread_header;
-		cmd.params.pcrread_in.pcr_idx = cpu_to_be32(0);
-		rc = tpm_transmit(chip, (u8 *) &cmd, READ_PCR_RESULT_SIZE);
-		/* Some buggy TPMs will not respond to tpm_tis_ready() for
-		 * around 300ms while the self test is ongoing, keep trying
-		 * until the self test duration expires. */
-		if (rc == -ETIME) {
-			dev_info(chip->dev, HW_ERR "TPM command timed out during continue self test");
-			msleep(delay_msec);
-			continue;
-		}
-
-		if (rc < TPM_HEADER_SIZE)
-			return -EFAULT;
-
-		rc = be32_to_cpu(cmd.header.out.return_code);
-		if (rc == TPM_ERR_DISABLED || rc == TPM_ERR_DEACTIVATED) {
-			dev_info(chip->dev,
-				 "TPM is disabled/deactivated (0x%X)\n", rc);
-			/* TPM is disabled and/or deactivated; driver can
-			 * proceed and TPM does handle commands for
-			 * suspend/resume correctly
-			 */
-			return 0;
-		}
-		if (rc != TPM_WARN_DOING_SELFTEST)
-			return rc;
-		msleep(delay_msec);
-	} while (--loops > 0);
-
-	return rc;
-}
-EXPORT_SYMBOL_GPL(tpm_do_selftest);
-
-int tpm_send(u32 chip_num, void *cmd, size_t buflen)
-{
-	struct tpm_chip *chip;
-	int rc;
-
-	chip = tpm_chip_find_get(chip_num);
-	if (chip == NULL)
-		return -ENODEV;
-
-	rc = transmit_cmd(chip, cmd, buflen, "attempting tpm_cmd");
-
-	tpm_chip_put(chip);
-	return rc;
-}
-EXPORT_SYMBOL_GPL(tpm_send);
-
-ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr,
-		      char *buf)
-{
-	cap_t cap;
-	u8 digest[TPM_DIGEST_SIZE];
-	ssize_t rc;
-	int i, j, num_pcrs;
-	char *str = buf;
-	struct tpm_chip *chip = dev_get_drvdata(dev);
-
-	rc = tpm_getcap(dev, TPM_CAP_PROP_PCR, &cap,
-			"attempting to determine the number of PCRS");
-	if (rc)
-		return 0;
-
-	num_pcrs = be32_to_cpu(cap.num_pcrs);
-	for (i = 0; i < num_pcrs; i++) {
-		rc = __tpm_pcr_read(chip, i, digest);
-		if (rc)
-			break;
-		str += sprintf(str, "PCR-%02d: ", i);
-		for (j = 0; j < TPM_DIGEST_SIZE; j++)
-			str += sprintf(str, "%02X ", digest[j]);
-		str += sprintf(str, "\n");
-	}
-	return str - buf;
-}
-EXPORT_SYMBOL_GPL(tpm_show_pcrs);
-
-#define  READ_PUBEK_RESULT_SIZE 314
-#define TPM_ORD_READPUBEK cpu_to_be32(124)
-static struct tpm_input_header tpm_readpubek_header = {
-	.tag = TPM_TAG_RQU_COMMAND,
-	.length = cpu_to_be32(30),
-	.ordinal = TPM_ORD_READPUBEK
-};
-
-ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr,
-		       char *buf)
-{
-	u8 *data;
-	struct tpm_cmd_t tpm_cmd;
-	ssize_t err;
-	int i, rc;
-	char *str = buf;
-
-	struct tpm_chip *chip = dev_get_drvdata(dev);
-
-	tpm_cmd.header.in = tpm_readpubek_header;
-	err = transmit_cmd(chip, &tpm_cmd, READ_PUBEK_RESULT_SIZE,
-			"attempting to read the PUBEK");
-	if (err)
-		goto out;
-
-	/*
-	   ignore header 10 bytes
-	   algorithm 32 bits (1 == RSA )
-	   encscheme 16 bits
-	   sigscheme 16 bits
-	   parameters (RSA 12->bytes: keybit, #primes, expbit)
-	   keylenbytes 32 bits
-	   256 byte modulus
-	   ignore checksum 20 bytes
-	 */
-	data = tpm_cmd.params.readpubek_out_buffer;
-	str +=
-	    sprintf(str,
-		    "Algorithm: %02X %02X %02X %02X\n"
-		    "Encscheme: %02X %02X\n"
-		    "Sigscheme: %02X %02X\n"
-		    "Parameters: %02X %02X %02X %02X "
-		    "%02X %02X %02X %02X "
-		    "%02X %02X %02X %02X\n"
-		    "Modulus length: %d\n"
-		    "Modulus:\n",
-		    data[0], data[1], data[2], data[3],
-		    data[4], data[5],
-		    data[6], data[7],
-		    data[12], data[13], data[14], data[15],
-		    data[16], data[17], data[18], data[19],
-		    data[20], data[21], data[22], data[23],
-		    be32_to_cpu(*((__be32 *) (data + 24))));
-
-	for (i = 0; i < 256; i++) {
-		str += sprintf(str, "%02X ", data[i + 28]);
-		if ((i + 1) % 16 == 0)
-			str += sprintf(str, "\n");
-	}
-out:
-	rc = str - buf;
-	return rc;
-}
-EXPORT_SYMBOL_GPL(tpm_show_pubek);
-
-
-ssize_t tpm_show_caps(struct device *dev, struct device_attribute *attr,
-		      char *buf)
-{
-	cap_t cap;
-	ssize_t rc;
-	char *str = buf;
-
-	rc = tpm_getcap(dev, TPM_CAP_PROP_MANUFACTURER, &cap,
-			"attempting to determine the manufacturer");
-	if (rc)
-		return 0;
-	str += sprintf(str, "Manufacturer: 0x%x\n",
-		       be32_to_cpu(cap.manufacturer_id));
-
-	/* Try to get a TPM version 1.2 TPM_CAP_VERSION_INFO */
-	rc = tpm_getcap(dev, CAP_VERSION_1_2, &cap,
-			 "attempting to determine the 1.2 version");
-	if (!rc) {
-		str += sprintf(str,
-			       "TCG version: %d.%d\nFirmware version: %d.%d\n",
-			       cap.tpm_version_1_2.Major,
-			       cap.tpm_version_1_2.Minor,
-			       cap.tpm_version_1_2.revMajor,
-			       cap.tpm_version_1_2.revMinor);
-	} else {
-		/* Otherwise just use TPM_STRUCT_VER */
-		rc = tpm_getcap(dev, CAP_VERSION_1_1, &cap,
-				"attempting to determine the 1.1 version");
-		if (rc)
-			return 0;
-		str += sprintf(str,
-			       "TCG version: %d.%d\nFirmware version: %d.%d\n",
-			       cap.tpm_version.Major,
-			       cap.tpm_version.Minor,
-			       cap.tpm_version.revMajor,
-			       cap.tpm_version.revMinor);
-	}
-
-	return str - buf;
-}
-EXPORT_SYMBOL_GPL(tpm_show_caps);
-
-ssize_t tpm_show_durations(struct device *dev, struct device_attribute *attr,
-			  char *buf)
-{
-	struct tpm_chip *chip = dev_get_drvdata(dev);
-
-	if (chip->vendor.duration[TPM_LONG] == 0)
-		return 0;
-
-	return sprintf(buf, "%d %d %d [%s]\n",
-		       jiffies_to_usecs(chip->vendor.duration[TPM_SHORT]),
-		       jiffies_to_usecs(chip->vendor.duration[TPM_MEDIUM]),
-		       jiffies_to_usecs(chip->vendor.duration[TPM_LONG]),
-		       chip->vendor.duration_adjusted
-		       ? "adjusted" : "original");
-}
-EXPORT_SYMBOL_GPL(tpm_show_durations);
-
-ssize_t tpm_show_timeouts(struct device *dev, struct device_attribute *attr,
-			  char *buf)
-{
-	struct tpm_chip *chip = dev_get_drvdata(dev);
-
-	return sprintf(buf, "%d %d %d %d [%s]\n",
-		       jiffies_to_usecs(chip->vendor.timeout_a),
-		       jiffies_to_usecs(chip->vendor.timeout_b),
-		       jiffies_to_usecs(chip->vendor.timeout_c),
-		       jiffies_to_usecs(chip->vendor.timeout_d),
-		       chip->vendor.timeout_adjusted
-		       ? "adjusted" : "original");
-}
-EXPORT_SYMBOL_GPL(tpm_show_timeouts);
-
-ssize_t tpm_store_cancel(struct device *dev, struct device_attribute *attr,
-			const char *buf, size_t count)
-{
-	struct tpm_chip *chip = dev_get_drvdata(dev);
-	if (chip == NULL)
-		return 0;
-
-	chip->vendor.cancel(chip);
-	return count;
-}
-EXPORT_SYMBOL_GPL(tpm_store_cancel);
-
-static bool wait_for_tpm_stat_cond(struct tpm_chip *chip, u8 mask,
-					bool check_cancel, bool *canceled)
-{
-	u8 status = chip->vendor.status(chip);
-
-	*canceled = false;
-	if ((status & mask) == mask)
-		return true;
-	if (check_cancel && chip->vendor.req_canceled(chip, status)) {
-		*canceled = true;
-		return true;
-	}
-	return false;
-}
-
-int wait_for_tpm_stat(struct tpm_chip *chip, u8 mask, unsigned long timeout,
-		      wait_queue_head_t *queue, bool check_cancel)
-{
-	unsigned long stop;
-	long rc;
-	u8 status;
-	bool canceled = false;
-
-	/* check current status */
-	status = chip->vendor.status(chip);
-	if ((status & mask) == mask)
-		return 0;
-
-	stop = jiffies + timeout;
-
-	if (chip->vendor.irq) {
-again:
-		timeout = stop - jiffies;
-		if ((long)timeout <= 0)
-			return -ETIME;
-		rc = wait_event_interruptible_timeout(*queue,
-			wait_for_tpm_stat_cond(chip, mask, check_cancel,
-					       &canceled),
-			timeout);
-		if (rc > 0) {
-			if (canceled)
-				return -ECANCELED;
-			return 0;
-		}
-		if (rc == -ERESTARTSYS && freezing(current)) {
-			clear_thread_flag(TIF_SIGPENDING);
-			goto again;
-		}
-	} else {
-		do {
-			msleep(TPM_TIMEOUT);
-			status = chip->vendor.status(chip);
-			if ((status & mask) == mask)
-				return 0;
-		} while (time_before(jiffies, stop));
-	}
-	return -ETIME;
-}
-EXPORT_SYMBOL_GPL(wait_for_tpm_stat);
-/*
- * Device file system interface to the TPM
- *
- * It's assured that the chip will be opened just once,
- * by the check of is_open variable, which is protected
- * by driver_lock.
- */
-int tpm_open(struct inode *inode, struct file *file)
-{
-	struct miscdevice *misc = file->private_data;
-	struct tpm_chip *chip = container_of(misc, struct tpm_chip,
-					     vendor.miscdev);
-
-	if (test_and_set_bit(0, &chip->is_open)) {
-		dev_dbg(chip->dev, "Another process owns this TPM\n");
-		return -EBUSY;
-	}
-
-	chip->data_buffer = kzalloc(TPM_BUFSIZE, GFP_KERNEL);
-	if (chip->data_buffer == NULL) {
-		clear_bit(0, &chip->is_open);
-		return -ENOMEM;
-	}
-
-	atomic_set(&chip->data_pending, 0);
-
-	file->private_data = chip;
-	get_device(chip->dev);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(tpm_open);
-
-/*
- * Called on file close
- */
-int tpm_release(struct inode *inode, struct file *file)
-{
-	struct tpm_chip *chip = file->private_data;
-
-	del_singleshot_timer_sync(&chip->user_read_timer);
-	flush_work(&chip->work);
-	file->private_data = NULL;
-	atomic_set(&chip->data_pending, 0);
-	kzfree(chip->data_buffer);
-	clear_bit(0, &chip->is_open);
-	put_device(chip->dev);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(tpm_release);
-
-ssize_t tpm_write(struct file *file, const char __user *buf,
-		  size_t size, loff_t *off)
-{
-	struct tpm_chip *chip = file->private_data;
-	size_t in_size = size;
-	ssize_t out_size;
-
-	/* cannot perform a write until the read has cleared
-	   either via tpm_read or a user_read_timer timeout.
-	   This also prevents splitted buffered writes from blocking here.
-	*/
-	if (atomic_read(&chip->data_pending) != 0)
-		return -EBUSY;
-
-	if (in_size > TPM_BUFSIZE)
-		return -E2BIG;
-
-	mutex_lock(&chip->buffer_mutex);
-
-	if (copy_from_user
-	    (chip->data_buffer, (void __user *) buf, in_size)) {
-		mutex_unlock(&chip->buffer_mutex);
-		return -EFAULT;
-	}
-
-	/* atomic tpm command send and result receive */
-	out_size = tpm_transmit(chip, chip->data_buffer, TPM_BUFSIZE);
-	if (out_size < 0) {
-		mutex_unlock(&chip->buffer_mutex);
-		return out_size;
-	}
-
-	atomic_set(&chip->data_pending, out_size);
-	mutex_unlock(&chip->buffer_mutex);
-
-	/* Set a timeout by which the reader must come claim the result */
-	mod_timer(&chip->user_read_timer, jiffies + (60 * HZ));
-
-	return in_size;
-}
-EXPORT_SYMBOL_GPL(tpm_write);
-
-ssize_t tpm_read(struct file *file, char __user *buf,
-		 size_t size, loff_t *off)
-{
-	struct tpm_chip *chip = file->private_data;
-	ssize_t ret_size;
-	int rc;
-
-	del_singleshot_timer_sync(&chip->user_read_timer);
-	flush_work(&chip->work);
-	ret_size = atomic_read(&chip->data_pending);
-	if (ret_size > 0) {	/* relay data */
-		ssize_t orig_ret_size = ret_size;
-		if (size < ret_size)
-			ret_size = size;
-
-		mutex_lock(&chip->buffer_mutex);
-		rc = copy_to_user(buf, chip->data_buffer, ret_size);
-		memset(chip->data_buffer, 0, orig_ret_size);
-		if (rc)
-			ret_size = -EFAULT;
-
-		mutex_unlock(&chip->buffer_mutex);
-	}
-
-	atomic_set(&chip->data_pending, 0);
-
-	return ret_size;
-}
-EXPORT_SYMBOL_GPL(tpm_read);
-
-void tpm_remove_hardware(struct device *dev)
-{
-	struct tpm_chip *chip = dev_get_drvdata(dev);
-
-	if (chip == NULL) {
-		dev_err(dev, "No device data found\n");
-		return;
-	}
-
-	spin_lock(&driver_lock);
-	list_del_rcu(&chip->list);
-	spin_unlock(&driver_lock);
-	synchronize_rcu();
-
-	misc_deregister(&chip->vendor.miscdev);
-	sysfs_remove_group(&dev->kobj, chip->vendor.attr_group);
-	tpm_remove_ppi(&dev->kobj);
-	tpm_bios_log_teardown(chip->bios_dir);
-
-	/* write it this way to be explicit (chip->dev == dev) */
-	put_device(chip->dev);
-}
-EXPORT_SYMBOL_GPL(tpm_remove_hardware);
-
-#define TPM_ORD_SAVESTATE cpu_to_be32(152)
-#define SAVESTATE_RESULT_SIZE 10
-
-static struct tpm_input_header savestate_header = {
-	.tag = TPM_TAG_RQU_COMMAND,
-	.length = cpu_to_be32(10),
-	.ordinal = TPM_ORD_SAVESTATE
-};
-
-/*
- * We are about to suspend. Save the TPM state
- * so that it can be restored.
- */
-int tpm_pm_suspend(struct device *dev)
-{
-	struct tpm_chip *chip = dev_get_drvdata(dev);
-	struct tpm_cmd_t cmd;
-	int rc, try;
-
-	u8 dummy_hash[TPM_DIGEST_SIZE] = { 0 };
-
-	if (chip == NULL)
-		return -ENODEV;
-
-	/* for buggy tpm, flush pcrs with extend to selected dummy */
-	if (tpm_suspend_pcr) {
-		cmd.header.in = pcrextend_header;
-		cmd.params.pcrextend_in.pcr_idx = cpu_to_be32(tpm_suspend_pcr);
-		memcpy(cmd.params.pcrextend_in.hash, dummy_hash,
-		       TPM_DIGEST_SIZE);
-		rc = transmit_cmd(chip, &cmd, EXTEND_PCR_RESULT_SIZE,
-				  "extending dummy pcr before suspend");
-	}
-
-	/* now do the actual savestate */
-	for (try = 0; try < TPM_RETRY; try++) {
-		cmd.header.in = savestate_header;
-		rc = transmit_cmd(chip, &cmd, SAVESTATE_RESULT_SIZE, NULL);
-
-		/*
-		 * If the TPM indicates that it is too busy to respond to
-		 * this command then retry before giving up.  It can take
-		 * several seconds for this TPM to be ready.
-		 *
-		 * This can happen if the TPM has already been sent the
-		 * SaveState command before the driver has loaded.  TCG 1.2
-		 * specification states that any communication after SaveState
-		 * may cause the TPM to invalidate previously saved state.
-		 */
-		if (rc != TPM_WARN_RETRY)
-			break;
-		msleep(TPM_TIMEOUT_RETRY);
-	}
-
-	if (rc)
-		dev_err(chip->dev,
-			"Error (%d) sending savestate before suspend\n", rc);
-	else if (try > 0)
-		dev_warn(chip->dev, "TPM savestate took %dms\n",
-			 try * TPM_TIMEOUT_RETRY);
-
-	return rc;
-}
-EXPORT_SYMBOL_GPL(tpm_pm_suspend);
-
-/*
- * Resume from a power safe. The BIOS already restored
- * the TPM state.
- */
-int tpm_pm_resume(struct device *dev)
-{
-	struct tpm_chip *chip = dev_get_drvdata(dev);
-
-	if (chip == NULL)
-		return -ENODEV;
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(tpm_pm_resume);
-
-#define TPM_GETRANDOM_RESULT_SIZE	18
-static struct tpm_input_header tpm_getrandom_header = {
-	.tag = TPM_TAG_RQU_COMMAND,
-	.length = cpu_to_be32(14),
-	.ordinal = TPM_ORD_GET_RANDOM
-};
-
-/**
- * tpm_get_random() - Get random bytes from the tpm's RNG
- * @chip_num: A specific chip number for the request or TPM_ANY_NUM
- * @out: destination buffer for the random bytes
- * @max: the max number of bytes to write to @out
- *
- * Returns < 0 on error and the number of bytes read on success
- */
-int tpm_get_random(u32 chip_num, u8 *out, size_t max)
-{
-	struct tpm_chip *chip;
-	struct tpm_cmd_t tpm_cmd;
-	u32 recd, num_bytes = min_t(u32, max, TPM_MAX_RNG_DATA);
-	int err, total = 0, retries = 5;
-	u8 *dest = out;
-
-	chip = tpm_chip_find_get(chip_num);
-	if (chip == NULL)
-		return -ENODEV;
-
-	if (!out || !num_bytes || max > TPM_MAX_RNG_DATA)
-		return -EINVAL;
-
-	do {
-		tpm_cmd.header.in = tpm_getrandom_header;
-		tpm_cmd.params.getrandom_in.num_bytes = cpu_to_be32(num_bytes);
-
-		err = transmit_cmd(chip, &tpm_cmd,
-				   TPM_GETRANDOM_RESULT_SIZE + num_bytes,
-				   "attempting get random");
-		if (err)
-			break;
-
-		recd = be32_to_cpu(tpm_cmd.params.getrandom_out.rng_data_len);
-		memcpy(dest, tpm_cmd.params.getrandom_out.rng_data, recd);
-
-		dest += recd;
-		total += recd;
-		num_bytes -= recd;
-	} while (retries-- && total < max);
-
-	return total ? total : -EIO;
-}
-EXPORT_SYMBOL_GPL(tpm_get_random);
-
-/* In case vendor provided release function, call it too.*/
-
-void tpm_dev_vendor_release(struct tpm_chip *chip)
-{
-	if (!chip)
-		return;
-
-	if (chip->vendor.release)
-		chip->vendor.release(chip->dev);
-
-	clear_bit(chip->dev_num, dev_mask);
-}
-EXPORT_SYMBOL_GPL(tpm_dev_vendor_release);
-
-
-/*
- * Once all references to platform device are down to 0,
- * release all allocated structures.
- */
-void tpm_dev_release(struct device *dev)
-{
-	struct tpm_chip *chip = dev_get_drvdata(dev);
-
-	if (!chip)
-		return;
-
-	tpm_dev_vendor_release(chip);
-
-	chip->release(dev);
-	kfree(chip);
-}
-EXPORT_SYMBOL_GPL(tpm_dev_release);
-
-/*
- * Called from tpm_<specific>.c probe function only for devices
- * the driver has determined it should claim.  Prior to calling
- * this function the specific probe function has called pci_enable_device
- * upon errant exit from this function specific probe function should call
- * pci_disable_device
- */
-struct tpm_chip *tpm_register_hardware(struct device *dev,
-					const struct tpm_vendor_specific *entry)
-{
-	struct tpm_chip *chip;
-
-	/* Driver specific per-device data */
-	chip = kzalloc(sizeof(*chip), GFP_KERNEL);
-
-	if (chip == NULL)
-		return NULL;
-
-	mutex_init(&chip->buffer_mutex);
-	mutex_init(&chip->tpm_mutex);
-	INIT_LIST_HEAD(&chip->list);
-
-	INIT_WORK(&chip->work, timeout_work);
-
-	setup_timer(&chip->user_read_timer, user_reader_timeout,
-			(unsigned long)chip);
-
-	memcpy(&chip->vendor, entry, sizeof(struct tpm_vendor_specific));
-
-	chip->dev_num = find_first_zero_bit(dev_mask, TPM_NUM_DEVICES);
-
-	if (chip->dev_num >= TPM_NUM_DEVICES) {
-		dev_err(dev, "No available tpm device numbers\n");
-		goto out_free;
-	} else if (chip->dev_num == 0)
-		chip->vendor.miscdev.minor = TPM_MINOR;
-	else
-		chip->vendor.miscdev.minor = MISC_DYNAMIC_MINOR;
-
-	set_bit(chip->dev_num, dev_mask);
-
-	scnprintf(chip->devname, sizeof(chip->devname), "%s%d", "tpm",
-		  chip->dev_num);
-	chip->vendor.miscdev.name = chip->devname;
-
-	chip->vendor.miscdev.parent = dev;
-	chip->dev = get_device(dev);
-	chip->release = dev->release;
-	dev->release = tpm_dev_release;
-	dev_set_drvdata(dev, chip);
-
-	if (misc_register(&chip->vendor.miscdev)) {
-		dev_err(chip->dev,
-			"unable to misc_register %s, minor %d\n",
-			chip->vendor.miscdev.name,
-			chip->vendor.miscdev.minor);
-		goto put_device;
-	}
-
-	if (sysfs_create_group(&dev->kobj, chip->vendor.attr_group)) {
-		misc_deregister(&chip->vendor.miscdev);
-		goto put_device;
-	}
-
-	if (tpm_add_ppi(&dev->kobj)) {
-		misc_deregister(&chip->vendor.miscdev);
-		goto put_device;
-	}
-
-	chip->bios_dir = tpm_bios_log_setup(chip->devname);
-
-	/* Make chip available */
-	spin_lock(&driver_lock);
-	list_add_rcu(&chip->list, &tpm_chip_list);
-	spin_unlock(&driver_lock);
-
-	return chip;
-
-put_device:
-	put_device(chip->dev);
-out_free:
-	kfree(chip);
-	return NULL;
-}
-EXPORT_SYMBOL_GPL(tpm_register_hardware);
-
-MODULE_AUTHOR("Leendert van Doorn (leendert@watson.ibm.com)");
-MODULE_DESCRIPTION("TPM Driver");
-MODULE_VERSION("2.0");
-MODULE_LICENSE("GPL");
-- 
cgit 


From 187eea0c353abd4ffa3a9cc86a660af9605fcb10 Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Date: Wed, 2 Oct 2013 22:51:09 -0600
Subject: tpm: Merge the tpm-bios module with tpm.o

Now that we can have multiple .c files in the tpm module there is
no reason for tpm-bios.

tpm-bios exported several functions: tpm_bios_log_setup,
tpm_bios_log_teardown, tpm_add_ppi, and tpm_remove_ppi.

They are only used by tpm, and if tpm-bios is built then
tpm will unconditionally require them. Further, tpm-bios does
nothing on its own, it has no module_init function.

Thus we remove the exports and merge the modules to simplify things.

The Makefile conditions are changed slightly to match the code,
tpm_ppi is always required if CONFIG_ACPI is set.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
---
 drivers/char/tpm/Makefile       | 7 +++----
 drivers/char/tpm/tpm_eventlog.c | 3 ---
 drivers/char/tpm/tpm_ppi.c      | 4 ----
 3 files changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/char/tpm/Makefile b/drivers/char/tpm/Makefile
index 83b8a9d7527e..15df2f38ae42 100644
--- a/drivers/char/tpm/Makefile
+++ b/drivers/char/tpm/Makefile
@@ -3,14 +3,13 @@
 #
 obj-$(CONFIG_TCG_TPM) += tpm.o
 tpm-y := tpm-interface.o
+tpm-$(CONFIG_ACPI) += tpm_ppi.o
 
 ifdef CONFIG_ACPI
-	obj-$(CONFIG_TCG_TPM) += tpm_bios.o
-	tpm_bios-objs += tpm_eventlog.o tpm_acpi.o tpm_ppi.o
+	tpm-y += tpm_eventlog.o tpm_acpi.o
 else
 ifdef CONFIG_TCG_IBMVTPM
-	obj-$(CONFIG_TCG_TPM) += tpm_bios.o
-	tpm_bios-objs += tpm_eventlog.o tpm_of.o
+	tpm-y += tpm_eventlog.o tpm_of.o
 endif
 endif
 obj-$(CONFIG_TCG_TIS) += tpm_tis.o
diff --git a/drivers/char/tpm/tpm_eventlog.c b/drivers/char/tpm/tpm_eventlog.c
index 84ddc557b8f8..59f7cb28260b 100644
--- a/drivers/char/tpm/tpm_eventlog.c
+++ b/drivers/char/tpm/tpm_eventlog.c
@@ -406,7 +406,6 @@ out_tpm:
 out:
 	return NULL;
 }
-EXPORT_SYMBOL_GPL(tpm_bios_log_setup);
 
 void tpm_bios_log_teardown(struct dentry **lst)
 {
@@ -415,5 +414,3 @@ void tpm_bios_log_teardown(struct dentry **lst)
 	for (i = 0; i < 3; i++)
 		securityfs_remove(lst[i]);
 }
-EXPORT_SYMBOL_GPL(tpm_bios_log_teardown);
-MODULE_LICENSE("GPL");
diff --git a/drivers/char/tpm/tpm_ppi.c b/drivers/char/tpm/tpm_ppi.c
index 2168d15bc728..8e562dc65601 100644
--- a/drivers/char/tpm/tpm_ppi.c
+++ b/drivers/char/tpm/tpm_ppi.c
@@ -452,12 +452,8 @@ int tpm_add_ppi(struct kobject *parent)
 {
 	return sysfs_create_group(parent, &ppi_attr_grp);
 }
-EXPORT_SYMBOL_GPL(tpm_add_ppi);
 
 void tpm_remove_ppi(struct kobject *parent)
 {
 	sysfs_remove_group(parent, &ppi_attr_grp);
 }
-EXPORT_SYMBOL_GPL(tpm_remove_ppi);
-
-MODULE_LICENSE("GPL");
-- 
cgit 


From 4c336e4b1556f4b722ba597bc6e3df786968a600 Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Date: Sun, 6 Oct 2013 12:43:13 -0600
Subject: tpm: Add support for the Nuvoton NPCT501 I2C TPM

This chip is/was also branded as a Winbond WPCT301.

Originally written by Dan Morav <dmorav@nuvoton.com> and posted to LKML:
https://lkml.org/lkml/2011/9/7/206

The original posting was not merged, I have taken it as a
starting point, forward ported, tested and revised the driver:
 - Rework interrupt handling to work properly with level triggered
   interrupts. The old version just locked up.
 - Synchronize various items with Peter Huewe's Infineon driver:
    * Add durations/timeouts sysfs calls
    * Remove I2C device auto-detection
    * Don't fiddle with chip->release
    * Call tpm_dev_vendor_release in the probe error path
    * Use MODULE_DEVICE_TABLE for the I2C ids
    * Provide OF compatible strings for DT support
    * Use SIMPLE_DEV_PM_OPS
    * Use module_i2c_driver
 - checkpatch cleanups
 - Testing on ARM Kirkwood with GPIO interrupts, with this device tree:
	tpm@57 {
                compatible = "nuvoton,npct501";
                reg = <0x57>;
                interrupt-parent = <&gpio1>;
                interrupts = <6 IRQ_TYPE_LEVEL_LOW>;
        };

Signed-off-by: Dan Morav <dmorav@nuvoton.com>
[jgg: revised and tested]
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
[phuewe: minor whitespace changes, fixed module name in kconfig]

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
---
 .../devicetree/bindings/i2c/trivial-devices.txt    |   2 +
 drivers/char/tpm/Kconfig                           |  10 +
 drivers/char/tpm/Makefile                          |   1 +
 drivers/char/tpm/tpm_i2c_nuvoton.c                 | 710 +++++++++++++++++++++
 4 files changed, 723 insertions(+)
 create mode 100644 drivers/char/tpm/tpm_i2c_nuvoton.c

diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
index ad6a73852f08..58454bdfa20e 100644
--- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt
+++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
@@ -44,6 +44,7 @@ mc,rv3029c2		Real Time Clock Module with I2C-Bus
 national,lm75		I2C TEMP SENSOR
 national,lm80		Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor
 national,lm92		±0.33°C Accurate, 12-Bit + Sign Temperature Sensor and Thermal Window Comparator with Two-Wire Interface
+nuvoton,npct501		i2c trusted platform module (TPM)
 nxp,pca9556		Octal SMBus and I2C registered interface
 nxp,pca9557		8-bit I2C-bus and SMBus I/O port with reset
 nxp,pcf8563		Real-time clock/calendar
@@ -61,3 +62,4 @@ taos,tsl2550		Ambient Light Sensor with SMBUS/Two Wire Serial Interface
 ti,tsc2003		I2C Touch-Screen Controller
 ti,tmp102		Low Power Digital Temperature Sensor with SMBUS/Two Wire Serial Interface
 ti,tmp275		Digital Temperature Sensor
+winbond,wpct301		i2c trusted platform module (TPM)
diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig
index 94c0c74434ea..ade71c134a1a 100644
--- a/drivers/char/tpm/Kconfig
+++ b/drivers/char/tpm/Kconfig
@@ -44,6 +44,16 @@ config TCG_TIS_I2C_INFINEON
 	  To compile this driver as a module, choose M here; the module
 	  will be called tpm_tis_i2c_infineon.
 
+config TCG_TIS_I2C_NUVOTON
+	tristate "TPM Interface Specification 1.2 Interface (I2C - Nuvoton)"
+	depends on I2C
+	---help---
+	  If you have a TPM security chip with an I2C interface from
+	  Nuvoton Technology Corp. say Yes and it will be accessible
+	  from within Linux.
+	  To compile this driver as a module, choose M here; the module
+	  will be called tpm_i2c_nuvoton.
+
 config TCG_NSC
 	tristate "National Semiconductor TPM Interface"
 	depends on X86
diff --git a/drivers/char/tpm/Makefile b/drivers/char/tpm/Makefile
index 15df2f38ae42..07ee67cf3341 100644
--- a/drivers/char/tpm/Makefile
+++ b/drivers/char/tpm/Makefile
@@ -14,6 +14,7 @@ endif
 endif
 obj-$(CONFIG_TCG_TIS) += tpm_tis.o
 obj-$(CONFIG_TCG_TIS_I2C_INFINEON) += tpm_i2c_infineon.o
+obj-$(CONFIG_TCG_TIS_I2C_NUVOTON) += tpm_i2c_nuvoton.o
 obj-$(CONFIG_TCG_NSC) += tpm_nsc.o
 obj-$(CONFIG_TCG_ATMEL) += tpm_atmel.o
 obj-$(CONFIG_TCG_INFINEON) += tpm_infineon.o
diff --git a/drivers/char/tpm/tpm_i2c_nuvoton.c b/drivers/char/tpm/tpm_i2c_nuvoton.c
new file mode 100644
index 000000000000..6276fea01ff0
--- /dev/null
+++ b/drivers/char/tpm/tpm_i2c_nuvoton.c
@@ -0,0 +1,710 @@
+/******************************************************************************
+ * Nuvoton TPM I2C Device Driver Interface for WPCT301/NPCT501,
+ * based on the TCG TPM Interface Spec version 1.2.
+ * Specifications at www.trustedcomputinggroup.org
+ *
+ * Copyright (C) 2011, Nuvoton Technology Corporation.
+ *  Dan Morav <dan.morav@nuvoton.com>
+ * Copyright (C) 2013, Obsidian Research Corp.
+ *  Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see http://www.gnu.org/licenses/>.
+ *
+ * Nuvoton contact information: APC.Support@nuvoton.com
+ *****************************************************************************/
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/wait.h>
+#include <linux/i2c.h>
+#include "tpm.h"
+
+/* I2C interface offsets */
+#define TPM_STS                0x00
+#define TPM_BURST_COUNT        0x01
+#define TPM_DATA_FIFO_W        0x20
+#define TPM_DATA_FIFO_R        0x40
+#define TPM_VID_DID_RID        0x60
+/* TPM command header size */
+#define TPM_HEADER_SIZE        10
+#define TPM_RETRY      5
+/*
+ * I2C bus device maximum buffer size w/o counting I2C address or command
+ * i.e. max size required for I2C write is 34 = addr, command, 32 bytes data
+ */
+#define TPM_I2C_MAX_BUF_SIZE           32
+#define TPM_I2C_RETRY_COUNT            32
+#define TPM_I2C_BUS_DELAY              1       /* msec */
+#define TPM_I2C_RETRY_DELAY_SHORT      2       /* msec */
+#define TPM_I2C_RETRY_DELAY_LONG       10      /* msec */
+
+#define I2C_DRIVER_NAME "tpm_i2c_nuvoton"
+
+struct priv_data {
+	unsigned int intrs;
+};
+
+static s32 i2c_nuvoton_read_buf(struct i2c_client *client, u8 offset, u8 size,
+				u8 *data)
+{
+	s32 status;
+
+	status = i2c_smbus_read_i2c_block_data(client, offset, size, data);
+	dev_dbg(&client->dev,
+		"%s(offset=%u size=%u data=%*ph) -> sts=%d\n", __func__,
+		offset, size, (int)size, data, status);
+	return status;
+}
+
+static s32 i2c_nuvoton_write_buf(struct i2c_client *client, u8 offset, u8 size,
+				 u8 *data)
+{
+	s32 status;
+
+	status = i2c_smbus_write_i2c_block_data(client, offset, size, data);
+	dev_dbg(&client->dev,
+		"%s(offset=%u size=%u data=%*ph) -> sts=%d\n", __func__,
+		offset, size, (int)size, data, status);
+	return status;
+}
+
+#define TPM_STS_VALID          0x80
+#define TPM_STS_COMMAND_READY  0x40
+#define TPM_STS_GO             0x20
+#define TPM_STS_DATA_AVAIL     0x10
+#define TPM_STS_EXPECT         0x08
+#define TPM_STS_RESPONSE_RETRY 0x02
+#define TPM_STS_ERR_VAL        0x07    /* bit2...bit0 reads always 0 */
+
+#define TPM_I2C_SHORT_TIMEOUT  750     /* ms */
+#define TPM_I2C_LONG_TIMEOUT   2000    /* 2 sec */
+
+/* read TPM_STS register */
+static u8 i2c_nuvoton_read_status(struct tpm_chip *chip)
+{
+	struct i2c_client *client = to_i2c_client(chip->dev);
+	s32 status;
+	u8 data;
+
+	status = i2c_nuvoton_read_buf(client, TPM_STS, 1, &data);
+	if (status <= 0) {
+		dev_err(chip->dev, "%s() error return %d\n", __func__,
+			status);
+		data = TPM_STS_ERR_VAL;
+	}
+
+	return data;
+}
+
+/* write byte to TPM_STS register */
+static s32 i2c_nuvoton_write_status(struct i2c_client *client, u8 data)
+{
+	s32 status;
+	int i;
+
+	/* this causes the current command to be aborted */
+	for (i = 0, status = -1; i < TPM_I2C_RETRY_COUNT && status < 0; i++) {
+		status = i2c_nuvoton_write_buf(client, TPM_STS, 1, &data);
+		msleep(TPM_I2C_BUS_DELAY);
+	}
+	return status;
+}
+
+/* write commandReady to TPM_STS register */
+static void i2c_nuvoton_ready(struct tpm_chip *chip)
+{
+	struct i2c_client *client = to_i2c_client(chip->dev);
+	s32 status;
+
+	/* this causes the current command to be aborted */
+	status = i2c_nuvoton_write_status(client, TPM_STS_COMMAND_READY);
+	if (status < 0)
+		dev_err(chip->dev,
+			"%s() fail to write TPM_STS.commandReady\n", __func__);
+}
+
+/* read burstCount field from TPM_STS register
+ * return -1 on fail to read */
+static int i2c_nuvoton_get_burstcount(struct i2c_client *client,
+				      struct tpm_chip *chip)
+{
+	unsigned long stop = jiffies + chip->vendor.timeout_d;
+	s32 status;
+	int burst_count = -1;
+	u8 data;
+
+	/* wait for burstcount to be non-zero */
+	do {
+		/* in I2C burstCount is 1 byte */
+		status = i2c_nuvoton_read_buf(client, TPM_BURST_COUNT, 1,
+					      &data);
+		if (status > 0 && data > 0) {
+			burst_count = min_t(u8, TPM_I2C_MAX_BUF_SIZE, data);
+			break;
+		}
+		msleep(TPM_I2C_BUS_DELAY);
+	} while (time_before(jiffies, stop));
+
+	return burst_count;
+}
+
+/*
+ * WPCT301/NPCT501 SINT# supports only dataAvail
+ * any call to this function which is not waiting for dataAvail will
+ * set queue to NULL to avoid waiting for interrupt
+ */
+static bool i2c_nuvoton_check_status(struct tpm_chip *chip, u8 mask, u8 value)
+{
+	u8 status = i2c_nuvoton_read_status(chip);
+	return (status != TPM_STS_ERR_VAL) && ((status & mask) == value);
+}
+
+static int i2c_nuvoton_wait_for_stat(struct tpm_chip *chip, u8 mask, u8 value,
+				     u32 timeout, wait_queue_head_t *queue)
+{
+	if (chip->vendor.irq && queue) {
+		s32 rc;
+		DEFINE_WAIT(wait);
+		struct priv_data *priv = chip->vendor.priv;
+		unsigned int cur_intrs = priv->intrs;
+
+		enable_irq(chip->vendor.irq);
+		rc = wait_event_interruptible_timeout(*queue,
+						      cur_intrs != priv->intrs,
+						      timeout);
+		if (rc > 0)
+			return 0;
+		/* At this point we know that the SINT pin is asserted, so we
+		 * do not need to do i2c_nuvoton_check_status */
+	} else {
+		unsigned long ten_msec, stop;
+		bool status_valid;
+
+		/* check current status */
+		status_valid = i2c_nuvoton_check_status(chip, mask, value);
+		if (status_valid)
+			return 0;
+
+		/* use polling to wait for the event */
+		ten_msec = jiffies + msecs_to_jiffies(TPM_I2C_RETRY_DELAY_LONG);
+		stop = jiffies + timeout;
+		do {
+			if (time_before(jiffies, ten_msec))
+				msleep(TPM_I2C_RETRY_DELAY_SHORT);
+			else
+				msleep(TPM_I2C_RETRY_DELAY_LONG);
+			status_valid = i2c_nuvoton_check_status(chip, mask,
+								value);
+			if (status_valid)
+				return 0;
+		} while (time_before(jiffies, stop));
+	}
+	dev_err(chip->dev, "%s(%02x, %02x) -> timeout\n", __func__, mask,
+		value);
+	return -ETIMEDOUT;
+}
+
+/* wait for dataAvail field to be set in the TPM_STS register */
+static int i2c_nuvoton_wait_for_data_avail(struct tpm_chip *chip, u32 timeout,
+					   wait_queue_head_t *queue)
+{
+	return i2c_nuvoton_wait_for_stat(chip,
+					 TPM_STS_DATA_AVAIL | TPM_STS_VALID,
+					 TPM_STS_DATA_AVAIL | TPM_STS_VALID,
+					 timeout, queue);
+}
+
+/* Read @count bytes into @buf from TPM_RD_FIFO register */
+static int i2c_nuvoton_recv_data(struct i2c_client *client,
+				 struct tpm_chip *chip, u8 *buf, size_t count)
+{
+	s32 rc;
+	int burst_count, bytes2read, size = 0;
+
+	while (size < count &&
+	       i2c_nuvoton_wait_for_data_avail(chip,
+					       chip->vendor.timeout_c,
+					       &chip->vendor.read_queue) == 0) {
+		burst_count = i2c_nuvoton_get_burstcount(client, chip);
+		if (burst_count < 0) {
+			dev_err(chip->dev,
+				"%s() fail to read burstCount=%d\n", __func__,
+				burst_count);
+			return -EIO;
+		}
+		bytes2read = min_t(size_t, burst_count, count - size);
+		rc = i2c_nuvoton_read_buf(client, TPM_DATA_FIFO_R,
+					  bytes2read, &buf[size]);
+		if (rc < 0) {
+			dev_err(chip->dev,
+				"%s() fail on i2c_nuvoton_read_buf()=%d\n",
+				__func__, rc);
+			return -EIO;
+		}
+		dev_dbg(chip->dev, "%s(%d):", __func__, bytes2read);
+		size += bytes2read;
+	}
+
+	return size;
+}
+
+/* Read TPM command results */
+static int i2c_nuvoton_recv(struct tpm_chip *chip, u8 *buf, size_t count)
+{
+	struct device *dev = chip->dev;
+	struct i2c_client *client = to_i2c_client(dev);
+	s32 rc;
+	int expected, status, burst_count, retries, size = 0;
+
+	if (count < TPM_HEADER_SIZE) {
+		i2c_nuvoton_ready(chip);    /* return to idle */
+		dev_err(dev, "%s() count < header size\n", __func__);
+		return -EIO;
+	}
+	for (retries = 0; retries < TPM_RETRY; retries++) {
+		if (retries > 0) {
+			/* if this is not the first trial, set responseRetry */
+			i2c_nuvoton_write_status(client,
+						 TPM_STS_RESPONSE_RETRY);
+		}
+		/*
+		 * read first available (> 10 bytes), including:
+		 * tag, paramsize, and result
+		 */
+		status = i2c_nuvoton_wait_for_data_avail(
+			chip, chip->vendor.timeout_c, &chip->vendor.read_queue);
+		if (status != 0) {
+			dev_err(dev, "%s() timeout on dataAvail\n", __func__);
+			size = -ETIMEDOUT;
+			continue;
+		}
+		burst_count = i2c_nuvoton_get_burstcount(client, chip);
+		if (burst_count < 0) {
+			dev_err(dev, "%s() fail to get burstCount\n", __func__);
+			size = -EIO;
+			continue;
+		}
+		size = i2c_nuvoton_recv_data(client, chip, buf,
+					     burst_count);
+		if (size < TPM_HEADER_SIZE) {
+			dev_err(dev, "%s() fail to read header\n", __func__);
+			size = -EIO;
+			continue;
+		}
+		/*
+		 * convert number of expected bytes field from big endian 32 bit
+		 * to machine native
+		 */
+		expected = be32_to_cpu(*(__be32 *) (buf + 2));
+		if (expected > count) {
+			dev_err(dev, "%s() expected > count\n", __func__);
+			size = -EIO;
+			continue;
+		}
+		rc = i2c_nuvoton_recv_data(client, chip, &buf[size],
+					   expected - size);
+		size += rc;
+		if (rc < 0 || size < expected) {
+			dev_err(dev, "%s() fail to read remainder of result\n",
+				__func__);
+			size = -EIO;
+			continue;
+		}
+		if (i2c_nuvoton_wait_for_stat(
+			    chip, TPM_STS_VALID | TPM_STS_DATA_AVAIL,
+			    TPM_STS_VALID, chip->vendor.timeout_c,
+			    NULL)) {
+			dev_err(dev, "%s() error left over data\n", __func__);
+			size = -ETIMEDOUT;
+			continue;
+		}
+		break;
+	}
+	i2c_nuvoton_ready(chip);
+	dev_dbg(chip->dev, "%s() -> %d\n", __func__, size);
+	return size;
+}
+
+/*
+ * Send TPM command.
+ *
+ * If interrupts are used (signaled by an irq set in the vendor structure)
+ * tpm.c can skip polling for the data to be available as the interrupt is
+ * waited for here
+ */
+static int i2c_nuvoton_send(struct tpm_chip *chip, u8 *buf, size_t len)
+{
+	struct device *dev = chip->dev;
+	struct i2c_client *client = to_i2c_client(dev);
+	u32 ordinal;
+	size_t count = 0;
+	int burst_count, bytes2write, retries, rc = -EIO;
+
+	for (retries = 0; retries < TPM_RETRY; retries++) {
+		i2c_nuvoton_ready(chip);
+		if (i2c_nuvoton_wait_for_stat(chip, TPM_STS_COMMAND_READY,
+					      TPM_STS_COMMAND_READY,
+					      chip->vendor.timeout_b, NULL)) {
+			dev_err(dev, "%s() timeout on commandReady\n",
+				__func__);
+			rc = -EIO;
+			continue;
+		}
+		rc = 0;
+		while (count < len - 1) {
+			burst_count = i2c_nuvoton_get_burstcount(client,
+								 chip);
+			if (burst_count < 0) {
+				dev_err(dev, "%s() fail get burstCount\n",
+					__func__);
+				rc = -EIO;
+				break;
+			}
+			bytes2write = min_t(size_t, burst_count,
+					    len - 1 - count);
+			rc = i2c_nuvoton_write_buf(client, TPM_DATA_FIFO_W,
+						   bytes2write, &buf[count]);
+			if (rc < 0) {
+				dev_err(dev, "%s() fail i2cWriteBuf\n",
+					__func__);
+				break;
+			}
+			dev_dbg(dev, "%s(%d):", __func__, bytes2write);
+			count += bytes2write;
+			rc = i2c_nuvoton_wait_for_stat(chip,
+						       TPM_STS_VALID |
+						       TPM_STS_EXPECT,
+						       TPM_STS_VALID |
+						       TPM_STS_EXPECT,
+						       chip->vendor.timeout_c,
+						       NULL);
+			if (rc < 0) {
+				dev_err(dev, "%s() timeout on Expect\n",
+					__func__);
+				rc = -ETIMEDOUT;
+				break;
+			}
+		}
+		if (rc < 0)
+			continue;
+
+		/* write last byte */
+		rc = i2c_nuvoton_write_buf(client, TPM_DATA_FIFO_W, 1,
+					   &buf[count]);
+		if (rc < 0) {
+			dev_err(dev, "%s() fail to write last byte\n",
+				__func__);
+			rc = -EIO;
+			continue;
+		}
+		dev_dbg(dev, "%s(last): %02x", __func__, buf[count]);
+		rc = i2c_nuvoton_wait_for_stat(chip,
+					       TPM_STS_VALID | TPM_STS_EXPECT,
+					       TPM_STS_VALID,
+					       chip->vendor.timeout_c, NULL);
+		if (rc) {
+			dev_err(dev, "%s() timeout on Expect to clear\n",
+				__func__);
+			rc = -ETIMEDOUT;
+			continue;
+		}
+		break;
+	}
+	if (rc < 0) {
+		/* retries == TPM_RETRY */
+		i2c_nuvoton_ready(chip);
+		return rc;
+	}
+	/* execute the TPM command */
+	rc = i2c_nuvoton_write_status(client, TPM_STS_GO);
+	if (rc < 0) {
+		dev_err(dev, "%s() fail to write Go\n", __func__);
+		i2c_nuvoton_ready(chip);
+		return rc;
+	}
+	ordinal = be32_to_cpu(*((__be32 *) (buf + 6)));
+	rc = i2c_nuvoton_wait_for_data_avail(chip,
+					     tpm_calc_ordinal_duration(chip,
+								       ordinal),
+					     &chip->vendor.read_queue);
+	if (rc) {
+		dev_err(dev, "%s() timeout command duration\n", __func__);
+		i2c_nuvoton_ready(chip);
+		return rc;
+	}
+
+	dev_dbg(dev, "%s() -> %zd\n", __func__, len);
+	return len;
+}
+
+static bool i2c_nuvoton_req_canceled(struct tpm_chip *chip, u8 status)
+{
+	return (status == TPM_STS_COMMAND_READY);
+}
+
+static const struct file_operations i2c_nuvoton_ops = {
+	.owner = THIS_MODULE,
+	.llseek = no_llseek,
+	.open = tpm_open,
+	.read = tpm_read,
+	.write = tpm_write,
+	.release = tpm_release,
+};
+
+static DEVICE_ATTR(pubek, S_IRUGO, tpm_show_pubek, NULL);
+static DEVICE_ATTR(pcrs, S_IRUGO, tpm_show_pcrs, NULL);
+static DEVICE_ATTR(enabled, S_IRUGO, tpm_show_enabled, NULL);
+static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL);
+static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL);
+static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated, NULL);
+static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL);
+static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel);
+static DEVICE_ATTR(durations, S_IRUGO, tpm_show_durations, NULL);
+static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL);
+
+static struct attribute *i2c_nuvoton_attrs[] = {
+	&dev_attr_pubek.attr,
+	&dev_attr_pcrs.attr,
+	&dev_attr_enabled.attr,
+	&dev_attr_active.attr,
+	&dev_attr_owned.attr,
+	&dev_attr_temp_deactivated.attr,
+	&dev_attr_caps.attr,
+	&dev_attr_cancel.attr,
+	&dev_attr_durations.attr,
+	&dev_attr_timeouts.attr,
+	NULL,
+};
+
+static struct attribute_group i2c_nuvoton_attr_grp = {
+	.attrs = i2c_nuvoton_attrs
+};
+
+static const struct tpm_vendor_specific tpm_i2c = {
+	.status = i2c_nuvoton_read_status,
+	.recv = i2c_nuvoton_recv,
+	.send = i2c_nuvoton_send,
+	.cancel = i2c_nuvoton_ready,
+	.req_complete_mask = TPM_STS_DATA_AVAIL | TPM_STS_VALID,
+	.req_complete_val = TPM_STS_DATA_AVAIL | TPM_STS_VALID,
+	.req_canceled = i2c_nuvoton_req_canceled,
+	.attr_group = &i2c_nuvoton_attr_grp,
+	.miscdev.fops = &i2c_nuvoton_ops,
+};
+
+/* The only purpose for the handler is to signal to any waiting threads that
+ * the interrupt is currently being asserted. The driver does not do any
+ * processing triggered by interrupts, and the chip provides no way to mask at
+ * the source (plus that would be slow over I2C). Run the IRQ as a one-shot,
+ * this means it cannot be shared. */
+static irqreturn_t i2c_nuvoton_int_handler(int dummy, void *dev_id)
+{
+	struct tpm_chip *chip = dev_id;
+	struct priv_data *priv = chip->vendor.priv;
+
+	priv->intrs++;
+	wake_up(&chip->vendor.read_queue);
+	disable_irq_nosync(chip->vendor.irq);
+	return IRQ_HANDLED;
+}
+
+static int get_vid(struct i2c_client *client, u32 *res)
+{
+	static const u8 vid_did_rid_value[] = { 0x50, 0x10, 0xfe };
+	u32 temp;
+	s32 rc;
+
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA))
+		return -ENODEV;
+	rc = i2c_nuvoton_read_buf(client, TPM_VID_DID_RID, 4, (u8 *)&temp);
+	if (rc < 0)
+		return rc;
+
+	/* check WPCT301 values - ignore RID */
+	if (memcmp(&temp, vid_did_rid_value, sizeof(vid_did_rid_value))) {
+		/*
+		 * f/w rev 2.81 has an issue where the VID_DID_RID is not
+		 * reporting the right value. so give it another chance at
+		 * offset 0x20 (FIFO_W).
+		 */
+		rc = i2c_nuvoton_read_buf(client, TPM_DATA_FIFO_W, 4,
+					  (u8 *) (&temp));
+		if (rc < 0)
+			return rc;
+
+		/* check WPCT301 values - ignore RID */
+		if (memcmp(&temp, vid_did_rid_value,
+			   sizeof(vid_did_rid_value)))
+			return -ENODEV;
+	}
+
+	*res = temp;
+	return 0;
+}
+
+static int i2c_nuvoton_probe(struct i2c_client *client,
+			     const struct i2c_device_id *id)
+{
+	int rc;
+	struct tpm_chip *chip;
+	struct device *dev = &client->dev;
+	u32 vid = 0;
+
+	rc = get_vid(client, &vid);
+	if (rc)
+		return rc;
+
+	dev_info(dev, "VID: %04X DID: %02X RID: %02X\n", (u16) vid,
+		 (u8) (vid >> 16), (u8) (vid >> 24));
+
+	chip = tpm_register_hardware(dev, &tpm_i2c);
+	if (!chip) {
+		dev_err(dev, "%s() error in tpm_register_hardware\n", __func__);
+		return -ENODEV;
+	}
+
+	chip->vendor.priv = devm_kzalloc(dev, sizeof(struct priv_data),
+					 GFP_KERNEL);
+	init_waitqueue_head(&chip->vendor.read_queue);
+	init_waitqueue_head(&chip->vendor.int_queue);
+
+	/* Default timeouts */
+	chip->vendor.timeout_a = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT);
+	chip->vendor.timeout_b = msecs_to_jiffies(TPM_I2C_LONG_TIMEOUT);
+	chip->vendor.timeout_c = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT);
+	chip->vendor.timeout_d = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT);
+
+	/*
+	 * I2C intfcaps (interrupt capabilitieis) in the chip are hard coded to:
+	 *   TPM_INTF_INT_LEVEL_LOW | TPM_INTF_DATA_AVAIL_INT
+	 * The IRQ should be set in the i2c_board_info (which is done
+	 * automatically in of_i2c_register_devices, for device tree users */
+	chip->vendor.irq = client->irq;
+
+	if (chip->vendor.irq) {
+		dev_dbg(dev, "%s() chip-vendor.irq\n", __func__);
+		rc = devm_request_irq(dev, chip->vendor.irq,
+				      i2c_nuvoton_int_handler,
+				      IRQF_TRIGGER_LOW,
+				      chip->vendor.miscdev.name,
+				      chip);
+		if (rc) {
+			dev_err(dev, "%s() Unable to request irq: %d for use\n",
+				__func__, chip->vendor.irq);
+			chip->vendor.irq = 0;
+		} else {
+			/* Clear any pending interrupt */
+			i2c_nuvoton_ready(chip);
+			/* - wait for TPM_STS==0xA0 (stsValid, commandReady) */
+			rc = i2c_nuvoton_wait_for_stat(chip,
+						       TPM_STS_COMMAND_READY,
+						       TPM_STS_COMMAND_READY,
+						       chip->vendor.timeout_b,
+						       NULL);
+			if (rc == 0) {
+				/*
+				 * TIS is in ready state
+				 * write dummy byte to enter reception state
+				 * TPM_DATA_FIFO_W <- rc (0)
+				 */
+				rc = i2c_nuvoton_write_buf(client,
+							   TPM_DATA_FIFO_W,
+							   1, (u8 *) (&rc));
+				if (rc < 0)
+					goto out_err;
+				/* TPM_STS <- 0x40 (commandReady) */
+				i2c_nuvoton_ready(chip);
+			} else {
+				/*
+				 * timeout_b reached - command was
+				 * aborted. TIS should now be in idle state -
+				 * only TPM_STS_VALID should be set
+				 */
+				if (i2c_nuvoton_read_status(chip) !=
+				    TPM_STS_VALID) {
+					rc = -EIO;
+					goto out_err;
+				}
+			}
+		}
+	}
+
+	if (tpm_get_timeouts(chip)) {
+		rc = -ENODEV;
+		goto out_err;
+	}
+
+	if (tpm_do_selftest(chip)) {
+		rc = -ENODEV;
+		goto out_err;
+	}
+
+	return 0;
+
+out_err:
+	tpm_dev_vendor_release(chip);
+	tpm_remove_hardware(chip->dev);
+	return rc;
+}
+
+static int i2c_nuvoton_remove(struct i2c_client *client)
+{
+	struct device *dev = &(client->dev);
+	struct tpm_chip *chip = dev_get_drvdata(dev);
+
+	if (chip)
+		tpm_dev_vendor_release(chip);
+	tpm_remove_hardware(dev);
+	kfree(chip);
+	return 0;
+}
+
+
+static const struct i2c_device_id i2c_nuvoton_id[] = {
+	{I2C_DRIVER_NAME, 0},
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, i2c_nuvoton_id);
+
+#ifdef CONFIG_OF
+static const struct of_device_id i2c_nuvoton_of_match[] = {
+	{.compatible = "nuvoton,npct501"},
+	{.compatible = "winbond,wpct301"},
+	{},
+};
+MODULE_DEVICE_TABLE(of, i2c_nuvoton_of_match);
+#endif
+
+static SIMPLE_DEV_PM_OPS(i2c_nuvoton_pm_ops, tpm_pm_suspend, tpm_pm_resume);
+
+static struct i2c_driver i2c_nuvoton_driver = {
+	.id_table = i2c_nuvoton_id,
+	.probe = i2c_nuvoton_probe,
+	.remove = i2c_nuvoton_remove,
+	.driver = {
+		.name = I2C_DRIVER_NAME,
+		.owner = THIS_MODULE,
+		.pm = &i2c_nuvoton_pm_ops,
+		.of_match_table = of_match_ptr(i2c_nuvoton_of_match),
+	},
+};
+
+module_i2c_driver(i2c_nuvoton_driver);
+
+MODULE_AUTHOR("Dan Morav (dan.morav@nuvoton.com)");
+MODULE_DESCRIPTION("Nuvoton TPM I2C Driver");
+MODULE_LICENSE("GPL");
-- 
cgit 


From a2871c62e1865c45f87a9343de76f727fb7a0ffd Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Date: Sun, 6 Oct 2013 12:43:36 -0600
Subject: tpm: Add support for Atmel I2C TPMs

This is based on the work of Teddy Reed <teddy@prosauce.org> published
on GitHub:
 https://github.com/theopolis/tpm-i2c-atmel.git
 34894b988b67e0ae55088d6388e77b0dbf10c07d

That driver was never merged, I have taken it as a starting port,
forward ported, tested and revised the driver:
 - Make it broadly textually similar to the Infineon and Nuvoton I2C
   driver
 - Place everything in a format suitable for mainline inclusion
 - Use high level I2C functions i2c_master_send and
   i2c_master_recv for data xfer
 - Use the timeout system from the core code, by faking out a status
   register
 - Only I2C transfer the number of bytes in the reply, not a fixed
   message size.
 - checkpatch cleanups
 - Testing on ARM Kirkwood, with this device tree, using a
   AT97SC3204T-X1A180
        tpm@29 {
                compatible = "atmel,at97sc3204t";
                reg = <0x29>;
        };

Signed-off-by: Teddy Reed <teddy@prosauce.org>
[jgg: revised and tested]
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
[phuewe: minor whitespace changes]

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
---
 .../devicetree/bindings/i2c/trivial-devices.txt    |   1 +
 drivers/char/tpm/Kconfig                           |   9 +
 drivers/char/tpm/Makefile                          |   1 +
 drivers/char/tpm/tpm_i2c_atmel.c                   | 284 +++++++++++++++++++++
 4 files changed, 295 insertions(+)
 create mode 100644 drivers/char/tpm/tpm_i2c_atmel.c

diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
index 58454bdfa20e..f1fb26eed0e9 100644
--- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt
+++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
@@ -15,6 +15,7 @@ adi,adt7461		+/-1C TDM Extended Temp Range I.C
 adt7461			+/-1C TDM Extended Temp Range I.C
 at,24c08		i2c serial eeprom  (24cxx)
 atmel,24c02		i2c serial eeprom  (24cxx)
+atmel,at97sc3204t	i2c trusted platform module (TPM)
 catalyst,24c32		i2c serial eeprom
 dallas,ds1307		64 x 8, Serial, I2C Real-Time Clock
 dallas,ds1338		I2C RTC with 56-Byte NV RAM
diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig
index ade71c134a1a..f9085860b716 100644
--- a/drivers/char/tpm/Kconfig
+++ b/drivers/char/tpm/Kconfig
@@ -33,6 +33,15 @@ config TCG_TIS
 	  from within Linux.  To compile this driver as a module, choose
 	  M here; the module will be called tpm_tis.
 
+config TCG_TIS_I2C_ATMEL
+	tristate "TPM Interface Specification 1.2 Interface (I2C - Atmel)"
+	depends on I2C
+	---help---
+	  If you have an Atmel I2C TPM security chip say Yes and it will be
+	  accessible from within Linux.
+	  To compile this driver as a module, choose M here; the module will
+	  be called tpm_tis_i2c_atmel.
+
 config TCG_TIS_I2C_INFINEON
 	tristate "TPM Interface Specification 1.2 Interface (I2C - Infineon)"
 	depends on I2C
diff --git a/drivers/char/tpm/Makefile b/drivers/char/tpm/Makefile
index 07ee67cf3341..b80a4000daee 100644
--- a/drivers/char/tpm/Makefile
+++ b/drivers/char/tpm/Makefile
@@ -13,6 +13,7 @@ ifdef CONFIG_TCG_IBMVTPM
 endif
 endif
 obj-$(CONFIG_TCG_TIS) += tpm_tis.o
+obj-$(CONFIG_TCG_TIS_I2C_ATMEL) += tpm_i2c_atmel.o
 obj-$(CONFIG_TCG_TIS_I2C_INFINEON) += tpm_i2c_infineon.o
 obj-$(CONFIG_TCG_TIS_I2C_NUVOTON) += tpm_i2c_nuvoton.o
 obj-$(CONFIG_TCG_NSC) += tpm_nsc.o
diff --git a/drivers/char/tpm/tpm_i2c_atmel.c b/drivers/char/tpm/tpm_i2c_atmel.c
new file mode 100644
index 000000000000..c3cd7fe481a1
--- /dev/null
+++ b/drivers/char/tpm/tpm_i2c_atmel.c
@@ -0,0 +1,284 @@
+/*
+ * ATMEL I2C TPM AT97SC3204T
+ *
+ * Copyright (C) 2012 V Lab Technologies
+ *  Teddy Reed <teddy@prosauce.org>
+ * Copyright (C) 2013, Obsidian Research Corp.
+ *  Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
+ * Device driver for ATMEL I2C TPMs.
+ *
+ * Teddy Reed determined the basic I2C command flow, unlike other I2C TPM
+ * devices the raw TCG formatted TPM command data is written via I2C and then
+ * raw TCG formatted TPM command data is returned via I2C.
+ *
+ * TGC status/locality/etc functions seen in the LPC implementation do not
+ * seem to be present.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see http://www.gnu.org/licenses/>.
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include "tpm.h"
+
+#define I2C_DRIVER_NAME "tpm_i2c_atmel"
+
+#define TPM_I2C_SHORT_TIMEOUT  750     /* ms */
+#define TPM_I2C_LONG_TIMEOUT   2000    /* 2 sec */
+
+#define ATMEL_STS_OK 1
+
+struct priv_data {
+	size_t len;
+	/* This is the amount we read on the first try. 25 was chosen to fit a
+	 * fair number of read responses in the buffer so a 2nd retry can be
+	 * avoided in small message cases. */
+	u8 buffer[sizeof(struct tpm_output_header) + 25];
+};
+
+static int i2c_atmel_send(struct tpm_chip *chip, u8 *buf, size_t len)
+{
+	struct priv_data *priv = chip->vendor.priv;
+	struct i2c_client *client = to_i2c_client(chip->dev);
+	s32 status;
+
+	priv->len = 0;
+
+	if (len <= 2)
+		return -EIO;
+
+	status = i2c_master_send(client, buf, len);
+
+	dev_dbg(chip->dev,
+		"%s(buf=%*ph len=%0zx) -> sts=%d\n", __func__,
+		(int)min_t(size_t, 64, len), buf, len, status);
+	return status;
+}
+
+static int i2c_atmel_recv(struct tpm_chip *chip, u8 *buf, size_t count)
+{
+	struct priv_data *priv = chip->vendor.priv;
+	struct i2c_client *client = to_i2c_client(chip->dev);
+	struct tpm_output_header *hdr =
+		(struct tpm_output_header *)priv->buffer;
+	u32 expected_len;
+	int rc;
+
+	if (priv->len == 0)
+		return -EIO;
+
+	/* Get the message size from the message header, if we didn't get the
+	 * whole message in read_status then we need to re-read the
+	 * message. */
+	expected_len = be32_to_cpu(hdr->length);
+	if (expected_len > count)
+		return -ENOMEM;
+
+	if (priv->len >= expected_len) {
+		dev_dbg(chip->dev,
+			"%s early(buf=%*ph count=%0zx) -> ret=%d\n", __func__,
+			(int)min_t(size_t, 64, expected_len), buf, count,
+			expected_len);
+		memcpy(buf, priv->buffer, expected_len);
+		return expected_len;
+	}
+
+	rc = i2c_master_recv(client, buf, expected_len);
+	dev_dbg(chip->dev,
+		"%s reread(buf=%*ph count=%0zx) -> ret=%d\n", __func__,
+		(int)min_t(size_t, 64, expected_len), buf, count,
+		expected_len);
+	return rc;
+}
+
+static void i2c_atmel_cancel(struct tpm_chip *chip)
+{
+	dev_err(chip->dev, "TPM operation cancellation was requested, but is not supported");
+}
+
+static u8 i2c_atmel_read_status(struct tpm_chip *chip)
+{
+	struct priv_data *priv = chip->vendor.priv;
+	struct i2c_client *client = to_i2c_client(chip->dev);
+	int rc;
+
+	/* The TPM fails the I2C read until it is ready, so we do the entire
+	 * transfer here and buffer it locally. This way the common code can
+	 * properly handle the timeouts. */
+	priv->len = 0;
+	memset(priv->buffer, 0, sizeof(priv->buffer));
+
+
+	/* Once the TPM has completed the command the command remains readable
+	 * until another command is issued. */
+	rc = i2c_master_recv(client, priv->buffer, sizeof(priv->buffer));
+	dev_dbg(chip->dev,
+		"%s: sts=%d", __func__, rc);
+	if (rc <= 0)
+		return 0;
+
+	priv->len = rc;
+
+	return ATMEL_STS_OK;
+}
+
+static const struct file_operations i2c_atmel_ops = {
+	.owner = THIS_MODULE,
+	.llseek = no_llseek,
+	.open = tpm_open,
+	.read = tpm_read,
+	.write = tpm_write,
+	.release = tpm_release,
+};
+
+static DEVICE_ATTR(pubek, S_IRUGO, tpm_show_pubek, NULL);
+static DEVICE_ATTR(pcrs, S_IRUGO, tpm_show_pcrs, NULL);
+static DEVICE_ATTR(enabled, S_IRUGO, tpm_show_enabled, NULL);
+static DEVICE_ATTR(active, S_IRUGO, tpm_show_active, NULL);
+static DEVICE_ATTR(owned, S_IRUGO, tpm_show_owned, NULL);
+static DEVICE_ATTR(temp_deactivated, S_IRUGO, tpm_show_temp_deactivated, NULL);
+static DEVICE_ATTR(caps, S_IRUGO, tpm_show_caps, NULL);
+static DEVICE_ATTR(cancel, S_IWUSR | S_IWGRP, NULL, tpm_store_cancel);
+static DEVICE_ATTR(durations, S_IRUGO, tpm_show_durations, NULL);
+static DEVICE_ATTR(timeouts, S_IRUGO, tpm_show_timeouts, NULL);
+
+static struct attribute *i2c_atmel_attrs[] = {
+	&dev_attr_pubek.attr,
+	&dev_attr_pcrs.attr,
+	&dev_attr_enabled.attr,
+	&dev_attr_active.attr,
+	&dev_attr_owned.attr,
+	&dev_attr_temp_deactivated.attr,
+	&dev_attr_caps.attr,
+	&dev_attr_cancel.attr,
+	&dev_attr_durations.attr,
+	&dev_attr_timeouts.attr,
+	NULL,
+};
+
+static struct attribute_group i2c_atmel_attr_grp = {
+	.attrs = i2c_atmel_attrs
+};
+
+static bool i2c_atmel_req_canceled(struct tpm_chip *chip, u8 status)
+{
+	return 0;
+}
+
+static const struct tpm_vendor_specific i2c_atmel = {
+	.status = i2c_atmel_read_status,
+	.recv = i2c_atmel_recv,
+	.send = i2c_atmel_send,
+	.cancel = i2c_atmel_cancel,
+	.req_complete_mask = ATMEL_STS_OK,
+	.req_complete_val = ATMEL_STS_OK,
+	.req_canceled = i2c_atmel_req_canceled,
+	.attr_group = &i2c_atmel_attr_grp,
+	.miscdev.fops = &i2c_atmel_ops,
+};
+
+static int i2c_atmel_probe(struct i2c_client *client,
+			   const struct i2c_device_id *id)
+{
+	int rc;
+	struct tpm_chip *chip;
+	struct device *dev = &client->dev;
+
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C))
+		return -ENODEV;
+
+	chip = tpm_register_hardware(dev, &i2c_atmel);
+	if (!chip) {
+		dev_err(dev, "%s() error in tpm_register_hardware\n", __func__);
+		return -ENODEV;
+	}
+
+	chip->vendor.priv = devm_kzalloc(dev, sizeof(struct priv_data),
+					 GFP_KERNEL);
+
+	/* Default timeouts */
+	chip->vendor.timeout_a = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT);
+	chip->vendor.timeout_b = msecs_to_jiffies(TPM_I2C_LONG_TIMEOUT);
+	chip->vendor.timeout_c = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT);
+	chip->vendor.timeout_d = msecs_to_jiffies(TPM_I2C_SHORT_TIMEOUT);
+	chip->vendor.irq = 0;
+
+	/* There is no known way to probe for this device, and all version
+	 * information seems to be read via TPM commands. Thus we rely on the
+	 * TPM startup process in the common code to detect the device. */
+	if (tpm_get_timeouts(chip)) {
+		rc = -ENODEV;
+		goto out_err;
+	}
+
+	if (tpm_do_selftest(chip)) {
+		rc = -ENODEV;
+		goto out_err;
+	}
+
+	return 0;
+
+out_err:
+	tpm_dev_vendor_release(chip);
+	tpm_remove_hardware(chip->dev);
+	return rc;
+}
+
+static int i2c_atmel_remove(struct i2c_client *client)
+{
+	struct device *dev = &(client->dev);
+	struct tpm_chip *chip = dev_get_drvdata(dev);
+
+	if (chip)
+		tpm_dev_vendor_release(chip);
+	tpm_remove_hardware(dev);
+	kfree(chip);
+	return 0;
+}
+
+static const struct i2c_device_id i2c_atmel_id[] = {
+	{I2C_DRIVER_NAME, 0},
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, i2c_atmel_id);
+
+#ifdef CONFIG_OF
+static const struct of_device_id i2c_atmel_of_match[] = {
+	{.compatible = "atmel,at97sc3204t"},
+	{},
+};
+MODULE_DEVICE_TABLE(of, i2c_atmel_of_match);
+#endif
+
+static SIMPLE_DEV_PM_OPS(i2c_atmel_pm_ops, tpm_pm_suspend, tpm_pm_resume);
+
+static struct i2c_driver i2c_atmel_driver = {
+	.id_table = i2c_atmel_id,
+	.probe = i2c_atmel_probe,
+	.remove = i2c_atmel_remove,
+	.driver = {
+		.name = I2C_DRIVER_NAME,
+		.owner = THIS_MODULE,
+		.pm = &i2c_atmel_pm_ops,
+		.of_match_table = of_match_ptr(i2c_atmel_of_match),
+	},
+};
+
+module_i2c_driver(i2c_atmel_driver);
+
+MODULE_AUTHOR("Jason Gunthorpe <jgunthorpe@obsidianresearch.com>");
+MODULE_DESCRIPTION("Atmel TPM I2C Driver");
+MODULE_LICENSE("GPL");
-- 
cgit 


From b3f2436addff1a18db44bf6abff7a1bd14fc4696 Mon Sep 17 00:00:00 2001
From: Peter Huewe <peterhuewe@gmx.de>
Date: Tue, 22 Oct 2013 01:12:15 +0200
Subject: tpm: Fix module name description in Kconfig for tpm_i2c_infineon

This patch changes the displayed module name from
tpm_tis_i2c_infineon to its actual name tpm_i2c_infineon.

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
---
 drivers/char/tpm/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig
index f9085860b716..dd7a82bfa7cf 100644
--- a/drivers/char/tpm/Kconfig
+++ b/drivers/char/tpm/Kconfig
@@ -51,7 +51,7 @@ config TCG_TIS_I2C_INFINEON
 	  Specification 0.20 say Yes and it will be accessible from within
 	  Linux.
 	  To compile this driver as a module, choose M here; the module
-	  will be called tpm_tis_i2c_infineon.
+	  will be called tpm_i2c_infineon.
 
 config TCG_TIS_I2C_NUVOTON
 	tristate "TPM Interface Specification 1.2 Interface (I2C - Nuvoton)"
-- 
cgit 


From 4ef4c943a0eabd2e0cd37d07c3a6b1da8e73efdf Mon Sep 17 00:00:00 2001
From: Peter Huewe <peterhuewe@gmx.de>
Date: Tue, 22 Oct 2013 01:14:47 +0200
Subject: tpm: use tabs instead of whitespaces in Kconfig

just like the other entries

Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
---
 drivers/char/tpm/Kconfig | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/char/tpm/Kconfig b/drivers/char/tpm/Kconfig
index dd7a82bfa7cf..1a65838888cd 100644
--- a/drivers/char/tpm/Kconfig
+++ b/drivers/char/tpm/Kconfig
@@ -101,14 +101,14 @@ config TCG_IBMVTPM
 	  as a module, choose M here; the module will be called tpm_ibmvtpm.
 
 config TCG_ST33_I2C
-        tristate "STMicroelectronics ST33 I2C TPM"
-        depends on I2C
-        depends on GPIOLIB
-        ---help---
-        If you have a TPM security chip from STMicroelectronics working with
-        an I2C bus say Yes and it will be accessible from within Linux.
-        To compile this driver as a module, choose M here; the module will be
-        called tpm_stm_st33_i2c.
+	tristate "STMicroelectronics ST33 I2C TPM"
+	depends on I2C
+	depends on GPIOLIB
+	---help---
+	  If you have a TPM security chip from STMicroelectronics working with
+	  an I2C bus say Yes and it will be accessible from within Linux.
+	  To compile this driver as a module, choose M here; the module will be
+	  called tpm_stm_st33_i2c.
 
 config TCG_XEN
 	tristate "XEN TPM Interface"
-- 
cgit 


From 2491c5c8c99dfcf2519ca73798be60f874a2b16e Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 11 Sep 2013 21:20:29 -0700
Subject: leds: blinkm: Remove redundant break
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

'break' after return is redundant. Remove it.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Jan-Simon Möller <dl9pf@gmx.de>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
---
 drivers/leds/leds-blinkm.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/leds/leds-blinkm.c b/drivers/leds/leds-blinkm.c
index a502678cc7f5..66d0a57db221 100644
--- a/drivers/leds/leds-blinkm.c
+++ b/drivers/leds/leds-blinkm.c
@@ -161,13 +161,10 @@ static ssize_t show_color_common(struct device *dev, char *buf, int color)
 	switch (color) {
 	case RED:
 		return scnprintf(buf, PAGE_SIZE, "%02X\n", data->red);
-		break;
 	case GREEN:
 		return scnprintf(buf, PAGE_SIZE, "%02X\n", data->green);
-		break;
 	case BLUE:
 		return scnprintf(buf, PAGE_SIZE, "%02X\n", data->blue);
-		break;
 	default:
 		return -EINVAL;
 	}
-- 
cgit 


From f65f0a1a9836abbfbe5c9b8fa0452e4d8eb7bf00 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Sun, 15 Sep 2013 03:50:17 -0700
Subject: leds: lp55xx: enable setting default trigger

This enables setting a default trigger on an LP55xx channel,
either from platform data or device tree. This mechanism is
identical to the mechanism for GPIO LEDs and references the
common LEDs device tree bindings.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Milo Kim <milo.kim@ti.com>
Acked-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
---
 Documentation/devicetree/bindings/leds/leds-lp55xx.txt | 10 +++++++---
 drivers/leds/leds-lp55xx-common.c                      |  3 +++
 include/linux/platform_data/leds-lp55xx.h              |  1 +
 3 files changed, 11 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/leds/leds-lp55xx.txt b/Documentation/devicetree/bindings/leds/leds-lp55xx.txt
index a61727f9a6d1..d221e75d90fa 100644
--- a/Documentation/devicetree/bindings/leds/leds-lp55xx.txt
+++ b/Documentation/devicetree/bindings/leds/leds-lp55xx.txt
@@ -17,12 +17,15 @@ Optional properties:
          2: D1~6 with VOUT, D7~9 with VDD
          3: D1~9 are connected to VOUT
 
-Alternatively, each child can have specific channel name
-- chan-name: Name of each channel name
+Alternatively, each child can have a specific channel name and trigger:
+- chan-name (optional): name of channel
+- linux,default-trigger (optional): see
+  Documentation/devicetree/bindings/leds/common.txt
 
 example 1) LP5521
 3 LED channels, external clock used. Channel names are 'lp5521_pri:channel0',
-'lp5521_pri:channel1' and 'lp5521_pri:channel2'
+'lp5521_pri:channel1' and 'lp5521_pri:channel2', with a heartbeat trigger
+on channel 0.
 
 lp5521@32 {
 	compatible = "national,lp5521";
@@ -33,6 +36,7 @@ lp5521@32 {
 	chan0 {
 		led-cur = /bits/ 8 <0x2f>;
 		max-cur = /bits/ 8 <0x5f>;
+		linux,default-trigger = "heartbeat";
 	};
 
 	chan1 {
diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c
index 351825b96f16..075acf5b9fab 100644
--- a/drivers/leds/leds-lp55xx-common.c
+++ b/drivers/leds/leds-lp55xx-common.c
@@ -165,6 +165,7 @@ static int lp55xx_init_led(struct lp55xx_led *led,
 	led->led_current = pdata->led_config[chan].led_current;
 	led->max_current = pdata->led_config[chan].max_current;
 	led->chan_nr = pdata->led_config[chan].chan_nr;
+	led->cdev.default_trigger = pdata->led_config[chan].default_trigger;
 
 	if (led->chan_nr >= max_channel) {
 		dev_err(dev, "Use channel numbers between 0 and %d\n",
@@ -586,6 +587,8 @@ int lp55xx_of_populate_pdata(struct device *dev, struct device_node *np)
 		of_property_read_string(child, "chan-name", &cfg[i].name);
 		of_property_read_u8(child, "led-cur", &cfg[i].led_current);
 		of_property_read_u8(child, "max-cur", &cfg[i].max_current);
+		cfg[i].default_trigger =
+			of_get_property(child, "linux,default-trigger", NULL);
 
 		i++;
 	}
diff --git a/include/linux/platform_data/leds-lp55xx.h b/include/linux/platform_data/leds-lp55xx.h
index 51a2ff579d60..c32de4dcec54 100644
--- a/include/linux/platform_data/leds-lp55xx.h
+++ b/include/linux/platform_data/leds-lp55xx.h
@@ -22,6 +22,7 @@
 
 struct lp55xx_led_config {
 	const char *name;
+	const char *default_trigger;
 	u8 chan_nr;
 	u8 led_current; /* mA x10, 0 if led is not connected */
 	u8 max_current;
-- 
cgit 


From b4f31ad6184fd5124abdb69b3b7ee5c18ac76db6 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 19 Sep 2013 21:27:59 -0700
Subject: leds: dac124s085: Remove redundant spi_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Guennadi Liakhovetski <lg@denx.de>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
---
 drivers/leds/leds-dac124s085.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/leds/leds-dac124s085.c b/drivers/leds/leds-dac124s085.c
index 1f9d8e62d37e..db3ba8b42517 100644
--- a/drivers/leds/leds-dac124s085.c
+++ b/drivers/leds/leds-dac124s085.c
@@ -101,7 +101,6 @@ eledcr:
 	while (i--)
 		led_classdev_unregister(&dac->leds[i].ldev);
 
-	spi_set_drvdata(spi, NULL);
 	return ret;
 }
 
@@ -115,8 +114,6 @@ static int dac124s085_remove(struct spi_device *spi)
 		cancel_work_sync(&dac->leds[i].work);
 	}
 
-	spi_set_drvdata(spi, NULL);
-
 	return 0;
 }
 
-- 
cgit 


From c68f46dd6aec29b4db9eb85d014981bbdd686428 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sat, 28 Sep 2013 04:38:30 -0700
Subject: leds: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
---
 drivers/leds/leds-gpio.c   | 1 +
 drivers/leds/leds-lp5523.c | 1 +
 drivers/leds/leds-lp5562.c | 1 +
 drivers/leds/leds-lp8501.c | 1 +
 drivers/leds/leds-ns2.c    | 1 +
 5 files changed, 5 insertions(+)

diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index e8b01e57348d..7ccafdeab9c1 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -15,6 +15,7 @@
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
 #include <linux/leds.h>
+#include <linux/of.h>
 #include <linux/of_platform.h>
 #include <linux/of_gpio.h>
 #include <linux/slab.h>
diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index fe3bcbb5747f..6b553d9f4266 100644
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -29,6 +29,7 @@
 #include <linux/leds.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
+#include <linux/of.h>
 #include <linux/platform_data/leds-lp55xx.h>
 #include <linux/slab.h>
 
diff --git a/drivers/leds/leds-lp5562.c b/drivers/leds/leds-lp5562.c
index 2585cfd57711..bf006f4e44a0 100644
--- a/drivers/leds/leds-lp5562.c
+++ b/drivers/leds/leds-lp5562.c
@@ -17,6 +17,7 @@
 #include <linux/leds.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
+#include <linux/of.h>
 #include <linux/platform_data/leds-lp55xx.h>
 #include <linux/slab.h>
 
diff --git a/drivers/leds/leds-lp8501.c b/drivers/leds/leds-lp8501.c
index 8d55a780ca46..f1c704f2243a 100644
--- a/drivers/leds/leds-lp8501.c
+++ b/drivers/leds/leds-lp8501.c
@@ -18,6 +18,7 @@
 #include <linux/leds.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
+#include <linux/of.h>
 #include <linux/platform_data/leds-lp55xx.h>
 #include <linux/slab.h>
 
diff --git a/drivers/leds/leds-ns2.c b/drivers/leds/leds-ns2.c
index 141f13438e80..c7a4230233ea 100644
--- a/drivers/leds/leds-ns2.c
+++ b/drivers/leds/leds-ns2.c
@@ -30,6 +30,7 @@
 #include <linux/leds.h>
 #include <linux/module.h>
 #include <linux/platform_data/leds-kirkwood-ns2.h>
+#include <linux/of.h>
 #include <linux/of_gpio.h>
 
 /*
-- 
cgit 


From 1e08f72dd248645450b01c86ccc066c0a90767d8 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Sat, 28 Sep 2013 04:38:31 -0700
Subject: leds: pwm: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
---
 drivers/leds/leds-pwm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c
index bb6f94898541..2848171b8576 100644
--- a/drivers/leds/leds-pwm.c
+++ b/drivers/leds/leds-pwm.c
@@ -232,7 +232,7 @@ static struct platform_driver led_pwm_driver = {
 	.driver		= {
 		.name	= "leds_pwm",
 		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(of_pwm_leds_match),
+		.of_match_table = of_pwm_leds_match,
 	},
 };
 
-- 
cgit 


From bb6febdc90efe7f664328075c204eed8e9af7ec9 Mon Sep 17 00:00:00 2001
From: Maximilian Güntner <maximilian.guentner@gmail.com>
Date: Wed, 16 Oct 2013 18:09:17 -0700
Subject: leds: Added driver for the NXP PCA9685 I2C chip
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The NXP PCA9685 supports 16 channels/leds using a 12-bit PWM (4095
levels of brightness)
This driver supports configuration using platform_data.

Signed-off-by: Maximilian Güntner <maximilian.guentner@gmail.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
---
 drivers/leds/Kconfig                       |  10 ++
 drivers/leds/Makefile                      |   1 +
 drivers/leds/leds-pca9685.c                | 213 +++++++++++++++++++++++++++++
 include/linux/platform_data/leds-pca9685.h |  35 +++++
 4 files changed, 259 insertions(+)
 create mode 100644 drivers/leds/leds-pca9685.c
 create mode 100644 include/linux/platform_data/leds-pca9685.h

diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 875bbe4c962e..72156c123033 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -300,6 +300,16 @@ config LEDS_PCA963X
 	  LED driver chip accessed via the I2C bus. Supported
 	  devices include PCA9633 and PCA9634
 
+config LEDS_PCA9685
+	tristate "LED support for PCA9685 I2C chip"
+	depends on LEDS_CLASS
+	depends on I2C
+	help
+	  This option enables support for LEDs connected to the PCA9685
+	  LED driver chip accessed via the I2C bus.
+	  The PCA9685 offers 12-bit PWM (4095 levels of brightness) on
+	  16 individual channels.
+
 config LEDS_WM831X_STATUS
 	tristate "LED support for status LEDs on WM831x PMICs"
 	depends on LEDS_CLASS
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index 8979b0b2c85e..3cd76dbd9be2 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -36,6 +36,7 @@ obj-$(CONFIG_LEDS_OT200)		+= leds-ot200.o
 obj-$(CONFIG_LEDS_FSG)			+= leds-fsg.o
 obj-$(CONFIG_LEDS_PCA955X)		+= leds-pca955x.o
 obj-$(CONFIG_LEDS_PCA963X)		+= leds-pca963x.o
+obj-$(CONFIG_LEDS_PCA9685)		+= leds-pca9685.o
 obj-$(CONFIG_LEDS_DA903X)		+= leds-da903x.o
 obj-$(CONFIG_LEDS_DA9052)		+= leds-da9052.o
 obj-$(CONFIG_LEDS_WM831X_STATUS)	+= leds-wm831x-status.o
diff --git a/drivers/leds/leds-pca9685.c b/drivers/leds/leds-pca9685.c
new file mode 100644
index 000000000000..6e1ef3a9d6ef
--- /dev/null
+++ b/drivers/leds/leds-pca9685.c
@@ -0,0 +1,213 @@
+/*
+ * Copyright 2013 Maximilian Güntner <maximilian.guentner@gmail.com>
+ *
+ * This file is subject to the terms and conditions of version 2 of
+ * the GNU General Public License.  See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * Based on leds-pca963x.c driver by
+ * Peter Meerwald <p.meerwald@bct-electronic.com>
+ *
+ * Driver for the NXP PCA9685 12-Bit PWM LED driver chip.
+ *
+ */
+
+#include <linux/ctype.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/leds.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/workqueue.h>
+
+#include <linux/platform_data/leds-pca9685.h>
+
+/* Register Addresses */
+#define PCA9685_MODE1 0x00
+#define PCA9685_MODE2 0x01
+#define PCA9685_LED0_ON_L 0x06
+#define PCA9685_ALL_LED_ON_L 0xFA
+
+/* MODE1 Register */
+#define PCA9685_ALLCALL 0x00
+#define PCA9685_SLEEP   0x04
+#define PCA9685_AI      0x05
+
+/* MODE2 Register */
+#define PCA9685_INVRT   0x04
+#define PCA9685_OUTDRV  0x02
+
+static const struct i2c_device_id pca9685_id[] = {
+	{ "pca9685", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, pca9685_id);
+
+struct pca9685_led {
+	struct i2c_client *client;
+	struct work_struct work;
+	u16 brightness;
+	struct led_classdev led_cdev;
+	int led_num; /* 0-15 */
+	char name[32];
+};
+
+static void pca9685_write_msg(struct i2c_client *client, u8 *buf, u8 len)
+{
+	struct i2c_msg msg = {
+		.addr = client->addr,
+		.flags = 0x00,
+		.len = len,
+		.buf = buf
+	};
+	i2c_transfer(client->adapter, &msg, 1);
+}
+
+static void pca9685_all_off(struct i2c_client *client)
+{
+	u8 i2c_buffer[5] = {PCA9685_ALL_LED_ON_L, 0x00, 0x00, 0x00, 0x10};
+	pca9685_write_msg(client, i2c_buffer, 5);
+}
+
+static void pca9685_led_work(struct work_struct *work)
+{
+	struct pca9685_led *pca9685;
+	u8 i2c_buffer[5];
+
+	pca9685 = container_of(work, struct pca9685_led, work);
+	i2c_buffer[0] = PCA9685_LED0_ON_L + 4 * pca9685->led_num;
+	/*
+	 * 4095 is the maximum brightness, so we set the ON time to 0x1000
+	 * which disables the PWM generator for that LED
+	 */
+	if (pca9685->brightness == 4095)
+		*((__le16 *)(i2c_buffer+1)) = cpu_to_le16(0x1000);
+	else
+		*((__le16 *)(i2c_buffer+1)) = 0x0000;
+
+	if (pca9685->brightness == 0)
+		*((__le16 *)(i2c_buffer+3)) = cpu_to_le16(0x1000);
+	else if (pca9685->brightness == 4095)
+		*((__le16 *)(i2c_buffer+3)) = 0x0000;
+	else
+		*((__le16 *)(i2c_buffer+3)) = cpu_to_le16(pca9685->brightness);
+
+	pca9685_write_msg(pca9685->client, i2c_buffer, 5);
+}
+
+static void pca9685_led_set(struct led_classdev *led_cdev,
+		enum led_brightness value)
+{
+	struct pca9685_led *pca9685;
+	pca9685 = container_of(led_cdev, struct pca9685_led, led_cdev);
+	pca9685->brightness = value;
+
+	schedule_work(&pca9685->work);
+}
+
+static int pca9685_probe(struct i2c_client *client,
+		const struct i2c_device_id *id)
+{
+	struct pca9685_led *pca9685;
+	struct pca9685_platform_data *pdata;
+	int err;
+	u8 i;
+
+	pdata = dev_get_platdata(&client->dev);
+	if (pdata) {
+		if (pdata->leds.num_leds < 1 || pdata->leds.num_leds > 15) {
+			dev_err(&client->dev, "board info must claim 1-16 LEDs");
+			return -EINVAL;
+		}
+	}
+
+	pca9685 = devm_kzalloc(&client->dev, 16 * sizeof(*pca9685), GFP_KERNEL);
+	if (!pca9685)
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, pca9685);
+	pca9685_all_off(client);
+
+	for (i = 0; i < 16; i++) {
+		pca9685[i].client = client;
+		pca9685[i].led_num = i;
+		pca9685[i].name[0] = '\0';
+		if (pdata && i < pdata->leds.num_leds) {
+			if (pdata->leds.leds[i].name)
+				strncpy(pca9685[i].name,
+					pdata->leds.leds[i].name,
+					sizeof(pca9685[i].name)-1);
+			if (pdata->leds.leds[i].default_trigger)
+				pca9685[i].led_cdev.default_trigger =
+					pdata->leds.leds[i].default_trigger;
+		}
+		if (strlen(pca9685[i].name) == 0) {
+			/*
+			 * Write adapter and address to the name as well.
+			 * Otherwise multiple chips attached to one host would
+			 * not work.
+			 */
+			snprintf(pca9685[i].name, sizeof(pca9685[i].name),
+					"pca9685:%d:x%.2x:%d",
+					client->adapter->nr, client->addr, i);
+		}
+		pca9685[i].led_cdev.name = pca9685[i].name;
+		pca9685[i].led_cdev.max_brightness = 0xfff;
+		pca9685[i].led_cdev.brightness_set = pca9685_led_set;
+
+		INIT_WORK(&pca9685[i].work, pca9685_led_work);
+		err = led_classdev_register(&client->dev, &pca9685[i].led_cdev);
+		if (err < 0)
+			goto exit;
+	}
+
+	if (pdata)
+		i2c_smbus_write_byte_data(client, PCA9685_MODE2,
+			pdata->outdrv << PCA9685_OUTDRV |
+			pdata->inverted << PCA9685_INVRT);
+	else
+		i2c_smbus_write_byte_data(client, PCA9685_MODE2,
+			PCA9685_TOTEM_POLE << PCA9685_OUTDRV);
+	/* Enable Auto-Increment, enable oscillator, ALLCALL/SUBADDR disabled */
+	i2c_smbus_write_byte_data(client, PCA9685_MODE1, BIT(PCA9685_AI));
+
+	return 0;
+
+exit:
+	while (i--) {
+		led_classdev_unregister(&pca9685[i].led_cdev);
+		cancel_work_sync(&pca9685[i].work);
+	}
+	return err;
+}
+
+static int pca9685_remove(struct i2c_client *client)
+{
+	struct pca9685_led *pca9685 = i2c_get_clientdata(client);
+	u8 i;
+
+	for (i = 0; i < 16; i++) {
+		led_classdev_unregister(&pca9685[i].led_cdev);
+		cancel_work_sync(&pca9685[i].work);
+	}
+	pca9685_all_off(client);
+	return 0;
+}
+
+static struct i2c_driver pca9685_driver = {
+	.driver = {
+		.name = "leds-pca9685",
+		.owner = THIS_MODULE,
+	},
+	.probe = pca9685_probe,
+	.remove = pca9685_remove,
+	.id_table = pca9685_id,
+};
+
+module_i2c_driver(pca9685_driver);
+
+MODULE_AUTHOR("Maximilian Güntner <maximilian.guentner@gmail.com>");
+MODULE_DESCRIPTION("PCA9685 LED Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/platform_data/leds-pca9685.h b/include/linux/platform_data/leds-pca9685.h
new file mode 100644
index 000000000000..778e9e4249cc
--- /dev/null
+++ b/include/linux/platform_data/leds-pca9685.h
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2013 Maximilian Güntner <maximilian.guentner@gmail.com>
+ *
+ * This file is subject to the terms and conditions of version 2 of
+ * the GNU General Public License.  See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * Based on leds-pca963x.h by Peter Meerwald <p.meerwald@bct-electronic.com>
+ *
+ * LED driver for the NXP PCA9685 PWM chip
+ *
+ */
+
+#ifndef __LINUX_PCA9685_H
+#define __LINUX_PCA9685_H
+
+#include <linux/leds.h>
+
+enum pca9685_outdrv {
+	PCA9685_OPEN_DRAIN,
+	PCA9685_TOTEM_POLE,
+};
+
+enum pca9685_inverted {
+	PCA9685_NOT_INVERTED,
+	PCA9685_INVERTED,
+};
+
+struct pca9685_platform_data {
+	struct led_platform_data leds;
+	enum pca9685_outdrv outdrv;
+	enum pca9685_inverted inverted;
+};
+
+#endif /* __LINUX_PCA9685_H */
-- 
cgit 


From 0a6957e7d47096bbeedda4e1d926359eb487dcfc Mon Sep 17 00:00:00 2001
From: ZHAO Gang <gamerh2o@gmail.com>
Date: Tue, 22 Oct 2013 16:23:38 +0800
Subject: net: remove function sk_reset_txq()

What sk_reset_txq() does is just calls function sk_tx_queue_reset(),
and sk_reset_txq() is used only in sock.h, by dst_negative_advice().
Let dst_negative_advice() calls sk_tx_queue_reset() directly so we
can remove unneeded sk_reset_txq().

Signed-off-by: ZHAO Gang <gamerh2o@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/sock.h | 4 +---
 net/core/sock.c    | 6 ------
 2 files changed, 1 insertion(+), 9 deletions(-)

diff --git a/include/net/sock.h b/include/net/sock.h
index 86bb0668c581..c93542f92420 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1746,8 +1746,6 @@ sk_dst_get(struct sock *sk)
 	return dst;
 }
 
-void sk_reset_txq(struct sock *sk);
-
 static inline void dst_negative_advice(struct sock *sk)
 {
 	struct dst_entry *ndst, *dst = __sk_dst_get(sk);
@@ -1757,7 +1755,7 @@ static inline void dst_negative_advice(struct sock *sk)
 
 		if (ndst != dst) {
 			rcu_assign_pointer(sk->sk_dst_cache, ndst);
-			sk_reset_txq(sk);
+			sk_tx_queue_clear(sk);
 		}
 	}
 }
diff --git a/net/core/sock.c b/net/core/sock.c
index 440afdca1e8f..ab20ed9b0f31 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -475,12 +475,6 @@ discard_and_relse:
 }
 EXPORT_SYMBOL(sk_receive_skb);
 
-void sk_reset_txq(struct sock *sk)
-{
-	sk_tx_queue_clear(sk);
-}
-EXPORT_SYMBOL(sk_reset_txq);
-
 struct dst_entry *__sk_dst_check(struct sock *sk, u32 cookie)
 {
 	struct dst_entry *dst = __sk_dst_get(sk);
-- 
cgit 


From fdfcab17a26ab2179c9d233f8a1b63e93cff9a4a Mon Sep 17 00:00:00 2001
From: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Date: Tue, 8 Oct 2013 18:01:28 +0900
Subject: clocksource: em_sti: convert to clk_prepare/unprepare

Add calls to clk_prepare and unprepare so that EMMA Mobile EV2 can
migrate to the common clock framework.

Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi.px@renesas.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/clocksource/em_sti.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/clocksource/em_sti.c b/drivers/clocksource/em_sti.c
index 3a5909c12d42..9d170834fcf3 100644
--- a/drivers/clocksource/em_sti.c
+++ b/drivers/clocksource/em_sti.c
@@ -78,7 +78,7 @@ static int em_sti_enable(struct em_sti_priv *p)
 	int ret;
 
 	/* enable clock */
-	ret = clk_enable(p->clk);
+	ret = clk_prepare_enable(p->clk);
 	if (ret) {
 		dev_err(&p->pdev->dev, "cannot enable clock\n");
 		return ret;
@@ -107,7 +107,7 @@ static void em_sti_disable(struct em_sti_priv *p)
 	em_sti_write(p, STI_INTENCLR, 3);
 
 	/* stop clock */
-	clk_disable(p->clk);
+	clk_disable_unprepare(p->clk);
 }
 
 static cycle_t em_sti_count(struct em_sti_priv *p)
-- 
cgit 


From 9c9b781804e0a278e258f81dfc31c50f80867730 Mon Sep 17 00:00:00 2001
From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Thu, 3 Oct 2013 21:56:29 +0200
Subject: clocksource: Provide timekeeping for efm32 SoCs
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

An efm32 features 4 16-bit timers with a 10-bit prescaler. This driver
provides clocksource and clock event device using one timer instance
each.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 .../devicetree/bindings/timer/efm32,timer.txt      |  23 ++
 drivers/clocksource/Kconfig                        |   8 +
 drivers/clocksource/Makefile                       |   1 +
 drivers/clocksource/time-efm32.c                   | 275 +++++++++++++++++++++
 4 files changed, 307 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/timer/efm32,timer.txt
 create mode 100644 drivers/clocksource/time-efm32.c

diff --git a/Documentation/devicetree/bindings/timer/efm32,timer.txt b/Documentation/devicetree/bindings/timer/efm32,timer.txt
new file mode 100644
index 000000000000..97a568f696c9
--- /dev/null
+++ b/Documentation/devicetree/bindings/timer/efm32,timer.txt
@@ -0,0 +1,23 @@
+* EFM32 timer hardware
+
+The efm32 Giant Gecko SoCs come with four 16 bit timers. Two counters can be
+connected to form a 32 bit counter. Each timer has three Compare/Capture
+channels and can be used as PWM or Quadrature Decoder. Available clock sources
+are the cpu's HFPERCLK (with a 10-bit prescaler) or an external pin.
+
+Required properties:
+- compatible : Should be efm32,timer
+- reg : Address and length of the register set
+- clocks : Should contain a reference to the HFPERCLK
+
+Optional properties:
+- interrupts : Reference to the timer interrupt
+
+Example:
+
+timer@40010c00 {
+	compatible = "efm32,timer";
+	reg = <0x40010c00 0x400>;
+	interrupts = <14>;
+	clocks = <&cmu clk_HFPERCLKTIMER3>;
+};
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 5e940f839a2d..915a38872851 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -71,6 +71,14 @@ config CLKSRC_DBX500_PRCMU_SCHED_CLOCK
 	help
 	  Use the always on PRCMU Timer as sched_clock
 
+config CLKSRC_EFM32
+	bool "Clocksource for Energy Micro's EFM32 SoCs" if !ARCH_EFM32
+	depends on OF && ARM && (ARCH_EFM32 || COMPILE_TEST)
+	default ARCH_EFM32
+	help
+	  Support to use the timers of EFM32 SoCs as clock source and clock
+	  event device.
+
 config ARM_ARCH_TIMER
 	bool
 	select CLKSRC_OF if OF
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index 704d6d342adc..33621efb9148 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -27,6 +27,7 @@ obj-$(CONFIG_VT8500_TIMER)	+= vt8500_timer.o
 obj-$(CONFIG_ARCH_NSPIRE)	+= zevio-timer.o
 obj-$(CONFIG_ARCH_BCM)		+= bcm_kona_timer.o
 obj-$(CONFIG_CADENCE_TTC_TIMER)	+= cadence_ttc_timer.o
+obj-$(CONFIG_CLKSRC_EFM32)	+= time-efm32.o
 obj-$(CONFIG_CLKSRC_EXYNOS_MCT)	+= exynos_mct.o
 obj-$(CONFIG_CLKSRC_SAMSUNG_PWM)	+= samsung_pwm_timer.o
 obj-$(CONFIG_VF_PIT_TIMER)	+= vf_pit_timer.o
diff --git a/drivers/clocksource/time-efm32.c b/drivers/clocksource/time-efm32.c
new file mode 100644
index 000000000000..1a6205b7bed3
--- /dev/null
+++ b/drivers/clocksource/time-efm32.c
@@ -0,0 +1,275 @@
+/*
+ * Copyright (C) 2013 Pengutronix
+ * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation.
+ */
+
+#define pr_fmt(fmt)	KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/clocksource.h>
+#include <linux/clockchips.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/clk.h>
+
+#define TIMERn_CTRL			0x00
+#define TIMERn_CTRL_PRESC(val)			(((val) & 0xf) << 24)
+#define TIMERn_CTRL_PRESC_1024			TIMERn_CTRL_PRESC(10)
+#define TIMERn_CTRL_CLKSEL(val)			(((val) & 0x3) << 16)
+#define TIMERn_CTRL_CLKSEL_PRESCHFPERCLK	TIMERn_CTRL_CLKSEL(0)
+#define TIMERn_CTRL_OSMEN			0x00000010
+#define TIMERn_CTRL_MODE(val)			(((val) & 0x3) <<  0)
+#define TIMERn_CTRL_MODE_UP			TIMERn_CTRL_MODE(0)
+#define TIMERn_CTRL_MODE_DOWN			TIMERn_CTRL_MODE(1)
+
+#define TIMERn_CMD			0x04
+#define TIMERn_CMD_START			0x00000001
+#define TIMERn_CMD_STOP				0x00000002
+
+#define TIMERn_IEN			0x0c
+#define TIMERn_IF			0x10
+#define TIMERn_IFS			0x14
+#define TIMERn_IFC			0x18
+#define TIMERn_IRQ_UF				0x00000002
+
+#define TIMERn_TOP			0x1c
+#define TIMERn_CNT			0x24
+
+struct efm32_clock_event_ddata {
+	struct clock_event_device evtdev;
+	void __iomem *base;
+	unsigned periodic_top;
+};
+
+static void efm32_clock_event_set_mode(enum clock_event_mode mode,
+				       struct clock_event_device *evtdev)
+{
+	struct efm32_clock_event_ddata *ddata =
+		container_of(evtdev, struct efm32_clock_event_ddata, evtdev);
+
+	switch (mode) {
+	case CLOCK_EVT_MODE_PERIODIC:
+		writel_relaxed(TIMERn_CMD_STOP, ddata->base + TIMERn_CMD);
+		writel_relaxed(ddata->periodic_top, ddata->base + TIMERn_TOP);
+		writel_relaxed(TIMERn_CTRL_PRESC_1024 |
+			       TIMERn_CTRL_CLKSEL_PRESCHFPERCLK |
+			       TIMERn_CTRL_MODE_DOWN,
+			       ddata->base + TIMERn_CTRL);
+		writel_relaxed(TIMERn_CMD_START, ddata->base + TIMERn_CMD);
+		break;
+
+	case CLOCK_EVT_MODE_ONESHOT:
+		writel_relaxed(TIMERn_CMD_STOP, ddata->base + TIMERn_CMD);
+		writel_relaxed(TIMERn_CTRL_PRESC_1024 |
+			       TIMERn_CTRL_CLKSEL_PRESCHFPERCLK |
+			       TIMERn_CTRL_OSMEN |
+			       TIMERn_CTRL_MODE_DOWN,
+			       ddata->base + TIMERn_CTRL);
+		break;
+
+	case CLOCK_EVT_MODE_UNUSED:
+	case CLOCK_EVT_MODE_SHUTDOWN:
+		writel_relaxed(TIMERn_CMD_STOP, ddata->base + TIMERn_CMD);
+		break;
+
+	case CLOCK_EVT_MODE_RESUME:
+		break;
+	}
+}
+
+static int efm32_clock_event_set_next_event(unsigned long evt,
+					    struct clock_event_device *evtdev)
+{
+	struct efm32_clock_event_ddata *ddata =
+		container_of(evtdev, struct efm32_clock_event_ddata, evtdev);
+
+	writel_relaxed(TIMERn_CMD_STOP, ddata->base + TIMERn_CMD);
+	writel_relaxed(evt, ddata->base + TIMERn_CNT);
+	writel_relaxed(TIMERn_CMD_START, ddata->base + TIMERn_CMD);
+
+	return 0;
+}
+
+static irqreturn_t efm32_clock_event_handler(int irq, void *dev_id)
+{
+	struct efm32_clock_event_ddata *ddata = dev_id;
+
+	writel_relaxed(TIMERn_IRQ_UF, ddata->base + TIMERn_IFC);
+
+	ddata->evtdev.event_handler(&ddata->evtdev);
+
+	return IRQ_HANDLED;
+}
+
+static struct efm32_clock_event_ddata clock_event_ddata = {
+	.evtdev = {
+		.name = "efm32 clockevent",
+		.features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_MODE_PERIODIC,
+		.set_mode = efm32_clock_event_set_mode,
+		.set_next_event = efm32_clock_event_set_next_event,
+		.rating = 200,
+	},
+};
+
+static struct irqaction efm32_clock_event_irq = {
+	.name = "efm32 clockevent",
+	.flags = IRQF_TIMER,
+	.handler = efm32_clock_event_handler,
+	.dev_id = &clock_event_ddata,
+};
+
+static int __init efm32_clocksource_init(struct device_node *np)
+{
+	struct clk *clk;
+	void __iomem *base;
+	unsigned long rate;
+	int ret;
+
+	clk = of_clk_get(np, 0);
+	if (IS_ERR(clk)) {
+		ret = PTR_ERR(clk);
+		pr_err("failed to get clock for clocksource (%d)\n", ret);
+		goto err_clk_get;
+	}
+
+	ret = clk_prepare_enable(clk);
+	if (ret) {
+		pr_err("failed to enable timer clock for clocksource (%d)\n",
+		       ret);
+		goto err_clk_enable;
+	}
+	rate = clk_get_rate(clk);
+
+	base = of_iomap(np, 0);
+	if (!base) {
+		ret = -EADDRNOTAVAIL;
+		pr_err("failed to map registers for clocksource\n");
+		goto err_iomap;
+	}
+
+	writel_relaxed(TIMERn_CTRL_PRESC_1024 |
+		       TIMERn_CTRL_CLKSEL_PRESCHFPERCLK |
+		       TIMERn_CTRL_MODE_UP, base + TIMERn_CTRL);
+	writel_relaxed(TIMERn_CMD_START, base + TIMERn_CMD);
+
+	ret = clocksource_mmio_init(base + TIMERn_CNT, "efm32 timer",
+				    DIV_ROUND_CLOSEST(rate, 1024), 200, 16,
+				    clocksource_mmio_readl_up);
+	if (ret) {
+		pr_err("failed to init clocksource (%d)\n", ret);
+		goto err_clocksource_init;
+	}
+
+	return 0;
+
+err_clocksource_init:
+
+	iounmap(base);
+err_iomap:
+
+	clk_disable_unprepare(clk);
+err_clk_enable:
+
+	clk_put(clk);
+err_clk_get:
+
+	return ret;
+}
+
+static int __init efm32_clockevent_init(struct device_node *np)
+{
+	struct clk *clk;
+	void __iomem *base;
+	unsigned long rate;
+	int irq;
+	int ret;
+
+	clk = of_clk_get(np, 0);
+	if (IS_ERR(clk)) {
+		ret = PTR_ERR(clk);
+		pr_err("failed to get clock for clockevent (%d)\n", ret);
+		goto err_clk_get;
+	}
+
+	ret = clk_prepare_enable(clk);
+	if (ret) {
+		pr_err("failed to enable timer clock for clockevent (%d)\n",
+		       ret);
+		goto err_clk_enable;
+	}
+	rate = clk_get_rate(clk);
+
+	base = of_iomap(np, 0);
+	if (!base) {
+		ret = -EADDRNOTAVAIL;
+		pr_err("failed to map registers for clockevent\n");
+		goto err_iomap;
+	}
+
+	irq = irq_of_parse_and_map(np, 0);
+	if (!irq) {
+		ret = -ENOENT;
+		pr_err("failed to get irq for clockevent\n");
+		goto err_get_irq;
+	}
+
+	writel_relaxed(TIMERn_IRQ_UF, base + TIMERn_IEN);
+
+	clock_event_ddata.base = base;
+	clock_event_ddata.periodic_top = DIV_ROUND_CLOSEST(rate, 1024 * HZ);
+
+	setup_irq(irq, &efm32_clock_event_irq);
+
+	clockevents_config_and_register(&clock_event_ddata.evtdev,
+					DIV_ROUND_CLOSEST(rate, 1024),
+					0xf, 0xffff);
+
+	return 0;
+
+err_get_irq:
+
+	iounmap(base);
+err_iomap:
+
+	clk_disable_unprepare(clk);
+err_clk_enable:
+
+	clk_put(clk);
+err_clk_get:
+
+	return ret;
+}
+
+/*
+ * This function asserts that we have exactly one clocksource and one
+ * clock_event_device in the end.
+ */
+static void __init efm32_timer_init(struct device_node *np)
+{
+	static int has_clocksource, has_clockevent;
+	int ret;
+
+	if (!has_clocksource) {
+		ret = efm32_clocksource_init(np);
+		if (!ret) {
+			has_clocksource = 1;
+			return;
+		}
+	}
+
+	if (!has_clockevent) {
+		ret = efm32_clockevent_init(np);
+		if (!ret) {
+			has_clockevent = 1;
+			return;
+		}
+	}
+}
+CLOCKSOURCE_OF_DECLARE(efm32, "efm32,timer", efm32_timer_init);
-- 
cgit 


From 71c568c00026f082ca16980e2d9bc506e7d3b145 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Mon, 14 Oct 2013 21:07:46 +0200
Subject: clocksource: sun4i: Select CLKSRC_MMIO

The Allwinner SoCs timer use the clocksource MMIO functions. We thus
need to select them in Kconfig.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/clocksource/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 915a38872851..bdb953e15d2a 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -34,6 +34,7 @@ config ORION_TIMER
 	bool
 
 config SUN4I_TIMER
+	select CLKSRC_MMIO
 	bool
 
 config VT8500_TIMER
-- 
cgit 


From 12e1480bcb4920c1b02b3793cb48756497919a60 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Mon, 14 Oct 2013 21:07:47 +0200
Subject: clocksource: sun4i: Report the minimum tick that we can program

We need to wait for at least 2 clock cycles whenever we reprogram our
clockevent timer. Report that the minimum number of ticks we can handle
is 3 ticks, and remove 3 ticks to the interval programmed to reflect
this.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/clocksource/sun4i_timer.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/clocksource/sun4i_timer.c b/drivers/clocksource/sun4i_timer.c
index 8ead0258740a..46008f9f49ad 100644
--- a/drivers/clocksource/sun4i_timer.c
+++ b/drivers/clocksource/sun4i_timer.c
@@ -37,6 +37,8 @@
 #define TIMER_INTVAL_REG(val)	(0x10 * (val) + 0x14)
 #define TIMER_CNTVAL_REG(val)	(0x10 * (val) + 0x18)
 
+#define TIMER_SYNC_TICKS	3
+
 static void __iomem *timer_base;
 static u32 ticks_per_jiffy;
 
@@ -50,7 +52,7 @@ static void sun4i_clkevt_sync(void)
 {
 	u32 old = readl(timer_base + TIMER_CNTVAL_REG(1));
 
-	while ((old - readl(timer_base + TIMER_CNTVAL_REG(1))) < 3)
+	while ((old - readl(timer_base + TIMER_CNTVAL_REG(1))) < TIMER_SYNC_TICKS)
 		cpu_relax();
 }
 
@@ -104,7 +106,7 @@ static int sun4i_clkevt_next_event(unsigned long evt,
 				   struct clock_event_device *unused)
 {
 	sun4i_clkevt_time_stop(0);
-	sun4i_clkevt_time_setup(0, evt);
+	sun4i_clkevt_time_setup(0, evt - TIMER_SYNC_TICKS);
 	sun4i_clkevt_time_start(0, false);
 
 	return 0;
@@ -187,8 +189,8 @@ static void __init sun4i_timer_init(struct device_node *node)
 
 	sun4i_clockevent.cpumask = cpumask_of(0);
 
-	clockevents_config_and_register(&sun4i_clockevent, rate, 0x1,
-					0xffffffff);
+	clockevents_config_and_register(&sun4i_clockevent, rate,
+					TIMER_SYNC_TICKS, 0xffffffff);
 }
 CLOCKSOURCE_OF_DECLARE(sun4i, "allwinner,sun4i-timer",
 		       sun4i_timer_init);
-- 
cgit 


From 3353652ce0eb22854b1748b8320c2b81912953a1 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime.ripard@free-electrons.com>
Date: Mon, 14 Oct 2013 21:07:48 +0200
Subject: clocksource: sun4i: remove IRQF_DISABLED

IRQF_DISABLED is a no-op nowadays, so we can safely remove it.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/clocksource/sun4i_timer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clocksource/sun4i_timer.c b/drivers/clocksource/sun4i_timer.c
index 46008f9f49ad..2fb4695a28d8 100644
--- a/drivers/clocksource/sun4i_timer.c
+++ b/drivers/clocksource/sun4i_timer.c
@@ -133,7 +133,7 @@ static irqreturn_t sun4i_timer_interrupt(int irq, void *dev_id)
 
 static struct irqaction sun4i_timer_irq = {
 	.name = "sun4i_timer0",
-	.flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
+	.flags = IRQF_TIMER | IRQF_IRQPOLL,
 	.handler = sun4i_timer_interrupt,
 	.dev_id = &sun4i_clockevent,
 };
-- 
cgit 


From f07c11ea32eebf81b7c1e59da2d119bf023882f2 Mon Sep 17 00:00:00 2001
From: Pali Rohár <pali.rohar@gmail.com>
Date: Sun, 8 Sep 2013 10:50:37 +0200
Subject: isp1704_charger: Fix driver to work with changes introduced in v3.5
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

* omap musb driver does not report USB_EVENT_ENUMERATED event anymore
* omap musb driver reporting USB_EVENT_VBUS when charger is connected
* read last event from phy->last_event (instead from ulpi register)
* do not call wall charger detection more times

Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
---
 drivers/power/isp1704_charger.c | 91 ++++++++++++++++++-----------------------
 1 file changed, 40 insertions(+), 51 deletions(-)

diff --git a/drivers/power/isp1704_charger.c b/drivers/power/isp1704_charger.c
index fc04d191579b..1bb3a91b1acc 100644
--- a/drivers/power/isp1704_charger.c
+++ b/drivers/power/isp1704_charger.c
@@ -2,6 +2,7 @@
  * ISP1704 USB Charger Detection driver
  *
  * Copyright (C) 2010 Nokia Corporation
+ * Copyright (C) 2012 - 2013 Pali Rohár <pali.rohar@gmail.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -65,10 +66,6 @@ struct isp1704_charger {
 	unsigned		present:1;
 	unsigned		online:1;
 	unsigned		current_max;
-
-	/* temp storage variables */
-	unsigned long		event;
-	unsigned		max_power;
 };
 
 static inline int isp1704_read(struct isp1704_charger *isp, u32 reg)
@@ -231,56 +228,59 @@ static inline int isp1704_charger_detect(struct isp1704_charger *isp)
 	return ret;
 }
 
+static inline int isp1704_charger_detect_dcp(struct isp1704_charger *isp)
+{
+	if (isp1704_charger_detect(isp) &&
+			isp1704_charger_type(isp) == POWER_SUPPLY_TYPE_USB_DCP)
+		return true;
+	else
+		return false;
+}
+
 static void isp1704_charger_work(struct work_struct *data)
 {
-	int			detect;
-	unsigned long		event;
-	unsigned		power;
 	struct isp1704_charger	*isp =
 		container_of(data, struct isp1704_charger, work);
 	static DEFINE_MUTEX(lock);
 
-	event = isp->event;
-	power = isp->max_power;
-
 	mutex_lock(&lock);
 
-	if (event != USB_EVENT_NONE)
-		isp1704_charger_set_power(isp, 1);
-
-	switch (event) {
+	switch (isp->phy->last_event) {
 	case USB_EVENT_VBUS:
-		isp->online = true;
+		/* do not call wall charger detection more times */
+		if (!isp->present) {
+			isp->online = true;
+			isp->present = 1;
+			isp1704_charger_set_power(isp, 1);
+
+			/* detect wall charger */
+			if (isp1704_charger_detect_dcp(isp)) {
+				isp->psy.type = POWER_SUPPLY_TYPE_USB_DCP;
+				isp->current_max = 1800;
+			} else {
+				isp->psy.type = POWER_SUPPLY_TYPE_USB;
+				isp->current_max = 500;
+			}
 
-		/* detect charger */
-		detect = isp1704_charger_detect(isp);
-
-		if (detect) {
-			isp->present = detect;
-			isp->psy.type = isp1704_charger_type(isp);
+			/* enable data pullups */
+			if (isp->phy->otg->gadget)
+				usb_gadget_connect(isp->phy->otg->gadget);
 		}
 
-		switch (isp->psy.type) {
-		case POWER_SUPPLY_TYPE_USB_DCP:
-			isp->current_max = 1800;
-			break;
-		case POWER_SUPPLY_TYPE_USB_CDP:
+		if (isp->psy.type != POWER_SUPPLY_TYPE_USB_DCP) {
 			/*
 			 * Only 500mA here or high speed chirp
 			 * handshaking may break
 			 */
-			isp->current_max = 500;
-			/* FALLTHROUGH */
-		case POWER_SUPPLY_TYPE_USB:
-		default:
-			/* enable data pullups */
-			if (isp->phy->otg->gadget)
-				usb_gadget_connect(isp->phy->otg->gadget);
+			if (isp->current_max > 500)
+				isp->current_max = 500;
+
+			if (isp->current_max > 100)
+				isp->psy.type = POWER_SUPPLY_TYPE_USB_CDP;
 		}
 		break;
 	case USB_EVENT_NONE:
 		isp->online = false;
-		isp->current_max = 0;
 		isp->present = 0;
 		isp->current_max = 0;
 		isp->psy.type = POWER_SUPPLY_TYPE_USB;
@@ -298,12 +298,6 @@ static void isp1704_charger_work(struct work_struct *data)
 
 		isp1704_charger_set_power(isp, 0);
 		break;
-	case USB_EVENT_ENUMERATED:
-		if (isp->present)
-			isp->current_max = 1800;
-		else
-			isp->current_max = power;
-		break;
 	default:
 		goto out;
 	}
@@ -314,16 +308,11 @@ out:
 }
 
 static int isp1704_notifier_call(struct notifier_block *nb,
-		unsigned long event, void *power)
+		unsigned long val, void *v)
 {
 	struct isp1704_charger *isp =
 		container_of(nb, struct isp1704_charger, nb);
 
-	isp->event = event;
-
-	if (power)
-		isp->max_power = *((unsigned *)power);
-
 	schedule_work(&isp->work);
 
 	return NOTIFY_OK;
@@ -462,13 +451,13 @@ static int isp1704_charger_probe(struct platform_device *pdev)
 	if (isp->phy->otg->gadget)
 		usb_gadget_disconnect(isp->phy->otg->gadget);
 
+	if (isp->phy->last_event == USB_EVENT_NONE)
+		isp1704_charger_set_power(isp, 0);
+
 	/* Detect charger if VBUS is valid (the cable was already plugged). */
-	ret = isp1704_read(isp, ULPI_USB_INT_STS);
-	isp1704_charger_set_power(isp, 0);
-	if ((ret & ULPI_INT_VBUS_VALID) && !isp->phy->otg->default_a) {
-		isp->event = USB_EVENT_VBUS;
+	if (isp->phy->last_event == USB_EVENT_VBUS &&
+			!isp->phy->otg->default_a)
 		schedule_work(&isp->work);
-	}
 
 	return 0;
 fail2:
-- 
cgit 


From 57bcfce377d26f84d7b135512a4599f88b85ac52 Mon Sep 17 00:00:00 2001
From: Ping Cheng <pinglinux@gmail.com>
Date: Tue, 15 Oct 2013 23:44:00 -0700
Subject: Input: wacom - not all multi-interface devices support touch

Some multi-interface devices support expresskeys on a separate interface,
such as Bamboo; some multi-interface devices do not support touch at all,
such as Pen only Intuos5. Make sure we report the right device names.

Tested-by: Jason Gerecke <killertofu@gmail.com>
Signed-off-by: Ping Cheng <pingc@wacom.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/tablet/wacom_sys.c | 57 +++++++++++++++++++++++++---------------
 drivers/input/tablet/wacom_wac.h |  4 ++-
 2 files changed, 39 insertions(+), 22 deletions(-)

diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 63971b8188b0..8a90da11365f 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -1188,34 +1188,47 @@ static void wacom_wireless_work(struct work_struct *work)
 		wacom_wac1->features =
 			*((struct wacom_features *)id->driver_info);
 		wacom_wac1->features.device_type = BTN_TOOL_PEN;
+		snprintf(wacom_wac1->name, WACOM_NAME_MAX, "%s (WL) Pen",
+			 wacom_wac1->features.name);
 		error = wacom_register_input(wacom1);
 		if (error)
-			goto fail1;
+			goto fail;
 
 		/* Touch interface */
-		wacom_wac2->features =
-			*((struct wacom_features *)id->driver_info);
-		wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3;
-		wacom_wac2->features.device_type = BTN_TOOL_FINGER;
-		wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096;
-		error = wacom_register_input(wacom2);
-		if (error)
-			goto fail2;
+		if (wacom_wac1->features.touch_max) {
+			wacom_wac2->features =
+				*((struct wacom_features *)id->driver_info);
+			wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3;
+			wacom_wac2->features.device_type = BTN_TOOL_FINGER;
+			wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096;
+			if (wacom_wac2->features.touch_max)
+				snprintf(wacom_wac2->name, WACOM_NAME_MAX,
+					 "%s (WL) Finger",wacom_wac2->features.name);
+			else
+				snprintf(wacom_wac2->name, WACOM_NAME_MAX,
+					 "%s (WL) Pad",wacom_wac2->features.name);
+			error = wacom_register_input(wacom2);
+			if (error)
+				goto fail;
+		}
 
 		error = wacom_initialize_battery(wacom);
 		if (error)
-			goto fail3;
+			goto fail;
 	}
 
 	return;
 
-fail3:
-	input_unregister_device(wacom_wac2->input);
-	wacom_wac2->input = NULL;
-fail2:
-	input_unregister_device(wacom_wac1->input);
-	wacom_wac1->input = NULL;
-fail1:
+fail:
+	if (wacom_wac2->input) {
+		input_unregister_device(wacom_wac2->input);
+		wacom_wac2->input = NULL;
+	}
+
+	if (wacom_wac1->input) {
+		input_unregister_device(wacom_wac1->input);
+		wacom_wac1->input = NULL;
+	}
 	return;
 }
 
@@ -1332,10 +1345,12 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
 		struct usb_device *other_dev;
 
 		/* Append the device type to the name */
-		strlcat(wacom_wac->name,
-			features->device_type == BTN_TOOL_PEN ?
-				" Pen" : " Finger",
-			sizeof(wacom_wac->name));
+		if (features->device_type != BTN_TOOL_FINGER)
+			strlcat(wacom_wac->name, " Pen", WACOM_NAME_MAX);
+		else if (features->touch_max)
+			strlcat(wacom_wac->name, " Finger", WACOM_NAME_MAX);
+		else
+			strlcat(wacom_wac->name, " Pad", WACOM_NAME_MAX);
 
 		other_dev = wacom_get_sibling(dev, features->oVid, features->oPid);
 		if (other_dev == NULL || wacom_get_usbdev_data(other_dev) == NULL)
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index 2a432e688e51..fd23a3790605 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -14,6 +14,8 @@
 /* maximum packet length for USB devices */
 #define WACOM_PKGLEN_MAX	64
 
+#define WACOM_NAME_MAX		64
+
 /* packet length for individual models */
 #define WACOM_PKGLEN_PENPRTN	 7
 #define WACOM_PKGLEN_GRAPHIRE	 8
@@ -130,7 +132,7 @@ struct wacom_shared {
 };
 
 struct wacom_wac {
-	char name[64];
+	char name[WACOM_NAME_MAX];
 	unsigned char *data;
 	int tool[2];
 	int id[2];
-- 
cgit 


From 9354f263383975ed5e11eb5a9cf21f2596f95be2 Mon Sep 17 00:00:00 2001
From: Yunkang Tang <yunkang.tang@cn.alps.com>
Date: Tue, 15 Oct 2013 23:50:38 -0700
Subject: Input: ALPS - change secondary device's name

Change the dev2's name from "PS/2 Mouse" to "ALPS PS/2 Device".

Signed-off-by: Yunkang Tang <yunkang.tang@cn.alps.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/mouse/alps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 7c5d72a6a26a..ca7a26f1dce8 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -1792,7 +1792,7 @@ int alps_init(struct psmouse *psmouse)
 	snprintf(priv->phys, sizeof(priv->phys), "%s/input1", psmouse->ps2dev.serio->phys);
 	dev2->phys = priv->phys;
 	dev2->name = (priv->flags & ALPS_DUALPOINT) ?
-		     "DualPoint Stick" : "PS/2 Mouse";
+		     "DualPoint Stick" : "ALPS PS/2 Device";
 	dev2->id.bustype = BUS_I8042;
 	dev2->id.vendor  = 0x0002;
 	dev2->id.product = PSMOUSE_ALPS;
-- 
cgit 


From 33777f34b5cc16a9fb2cd480e7db84c8de631fde Mon Sep 17 00:00:00 2001
From: Majunath Goudar <csmanjuvijay@gmail.com>
Date: Tue, 22 Oct 2013 16:00:27 -0700
Subject: Input: fix PWM-related undefined reference errors

This patch adds a PWM dependency to configure the INPUT_MAX8997_HAPTIC
and INPUT_PWM_BEEPER. Without this patch, build system can lead to build
failure. This was observed during randconfig testing, in which
INPUT_MAX8997_HAPTIC or INPUT_PWM_BEEPER was enabled w/o PWM being
enabled, leading to the following errors:

init/built-in.o
drivers/built-in.o: In function `max8997_haptic_disable':
:(.text+0x1073a0): undefined reference to `pwm_disable'
drivers/built-in.o: In function `max8997_haptic_remove':
:(.text+0x1073fc): undefined reference to `pwm_free'
drivers/built-in.o: In function `max8997_haptic_play_effect_work':
:(.text+0x1074f0): undefined reference to `pwm_config'
:(.text+0x1075b0): undefined reference to `pwm_enable'
drivers/built-in.o: In function `max8997_haptic_probe':
:(.text+0x1076f8): undefined reference to `pwm_request'
:(.text+0x1077e8): undefined reference to `pwm_free'
drivers/built-in.o: In function `pwm_beeper_resume':
:(.text+0x1081a4): undefined reference to `pwm_config'
make: *** [vmlinux] Error 1

Signed-off-by: Manjunath Goudar <csmanjuvijay@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/misc/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index aa51baaa9b1e..5f4967d01bc3 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -156,7 +156,7 @@ config INPUT_MAX8925_ONKEY
 
 config INPUT_MAX8997_HAPTIC
 	tristate "MAXIM MAX8997 haptic controller support"
-	depends on HAVE_PWM && MFD_MAX8997
+	depends on PWM && HAVE_PWM && MFD_MAX8997
 	select INPUT_FF_MEMLESS
 	help
 	  This option enables device driver support for the haptic controller
@@ -461,7 +461,7 @@ config INPUT_PCF8574
 
 config INPUT_PWM_BEEPER
 	tristate "PWM beeper support"
-	depends on HAVE_PWM || PWM
+	depends on PWM && HAVE_PWM
 	help
 	  Say Y here to get support for PWM based beeper devices.
 
-- 
cgit 


From 5378c2e6ea236de847a39bdb6f3aa83137120d26 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Mon, 21 Oct 2013 11:48:30 +0200
Subject: bonding: move bond-specific init after enslave happens

As Jiri noted, currently we first do all bonding-specific initialization
(specifically - bond_select_active_slave(bond)) before we actually attach
the slave (so that it becomes visible through bond_for_each_slave() and
friends). This might result in bond_select_active_slave() not seeing the
first/new slave and, thus, not actually selecting an active slave.

Fix this by moving all the bond-related init part after we've actually
completely initialized and linked (via bond_master_upper_dev_link()) the
new slave.

Also, remove the bond_(de/a)ttach_slave(), it's useless to have functions
to ++/-- one int.

After this we have all the initialization of the new slave *before*
linking, and all the stuff that needs to be done on bonding *after* it. It
has also a bonus effect - we can remove the locking on the new slave init
completely, and only use it for bond_select_active_slave().

Reported-by: Jiri Pirko <jiri@resnulli.us>
CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Acked-by: Ding Tianhong@huawei.com
Reviewed-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_main.c | 65 +++++++++--------------------------------
 1 file changed, 14 insertions(+), 51 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index d90734fca918..2daa066c6cdd 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -967,33 +967,6 @@ void bond_select_active_slave(struct bonding *bond)
 	}
 }
 
-/*--------------------------- slave list handling ---------------------------*/
-
-/*
- * This function attaches the slave to the end of list.
- *
- * bond->lock held for writing by caller.
- */
-static void bond_attach_slave(struct bonding *bond, struct slave *new_slave)
-{
-	bond->slave_cnt++;
-}
-
-/*
- * This function detaches the slave from the list.
- * WARNING: no check is made to verify if the slave effectively
- * belongs to <bond>.
- * Nothing is freed on return, structures are just unchained.
- * If any slave pointer in bond was pointing to <slave>,
- * it should be changed by the calling function.
- *
- * bond->lock held for writing by caller.
- */
-static void bond_detach_slave(struct bonding *bond, struct slave *slave)
-{
-	bond->slave_cnt--;
-}
-
 #ifdef CONFIG_NET_POLL_CONTROLLER
 static inline int slave_enable_netpoll(struct slave *slave)
 {
@@ -1471,22 +1444,13 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 		goto err_close;
 	}
 
-	write_lock_bh(&bond->lock);
-
 	prev_slave = bond_last_slave(bond);
-	bond_attach_slave(bond, new_slave);
 
 	new_slave->delay = 0;
 	new_slave->link_failure_count = 0;
 
-	write_unlock_bh(&bond->lock);
-
-	bond_compute_features(bond);
-
 	bond_update_speed_duplex(new_slave);
 
-	read_lock(&bond->lock);
-
 	new_slave->last_arp_rx = jiffies -
 		(msecs_to_jiffies(bond->params.arp_interval) + 1);
 	for (i = 0; i < BOND_MAX_ARP_TARGETS; i++)
@@ -1547,12 +1511,9 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 		}
 	}
 
-	write_lock_bh(&bond->curr_slave_lock);
-
 	switch (bond->params.mode) {
 	case BOND_MODE_ACTIVEBACKUP:
 		bond_set_slave_inactive_flags(new_slave);
-		bond_select_active_slave(bond);
 		break;
 	case BOND_MODE_8023AD:
 		/* in 802.3ad mode, the internal mechanism
@@ -1578,7 +1539,6 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 	case BOND_MODE_ALB:
 		bond_set_active_slave(new_slave);
 		bond_set_slave_inactive_flags(new_slave);
-		bond_select_active_slave(bond);
 		break;
 	default:
 		pr_debug("This slave is always active in trunk mode\n");
@@ -1596,10 +1556,6 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 		break;
 	} /* switch(bond_mode) */
 
-	write_unlock_bh(&bond->curr_slave_lock);
-
-	bond_set_carrier(bond);
-
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	slave_dev->npinfo = bond->dev->npinfo;
 	if (slave_dev->npinfo) {
@@ -1614,8 +1570,6 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 	}
 #endif
 
-	read_unlock(&bond->lock);
-
 	res = netdev_rx_handler_register(slave_dev, bond_handle_frame,
 					 new_slave);
 	if (res) {
@@ -1629,6 +1583,17 @@ int bond_enslave(struct net_device *bond_dev, struct net_device *slave_dev)
 		goto err_unregister;
 	}
 
+	bond->slave_cnt++;
+	bond_compute_features(bond);
+	bond_set_carrier(bond);
+
+	if (USES_PRIMARY(bond->params.mode)) {
+		read_lock(&bond->lock);
+		write_lock_bh(&bond->curr_slave_lock);
+		bond_select_active_slave(bond);
+		write_unlock_bh(&bond->curr_slave_lock);
+		read_unlock(&bond->lock);
+	}
 
 	pr_info("%s: enslaving %s as a%s interface with a%s link.\n",
 		bond_dev->name, slave_dev->name,
@@ -1648,7 +1613,6 @@ err_detach:
 
 	vlan_vids_del_by_dev(slave_dev, bond_dev);
 	write_lock_bh(&bond->lock);
-	bond_detach_slave(bond, new_slave);
 	if (bond->primary_slave == new_slave)
 		bond->primary_slave = NULL;
 	if (bond->curr_active_slave == new_slave) {
@@ -1686,7 +1650,6 @@ err_free:
 	kfree(new_slave);
 
 err_undo_flags:
-	bond_compute_features(bond);
 	/* Enslave of first slave has failed and we need to fix master's mac */
 	if (!bond_has_slaves(bond) &&
 	    ether_addr_equal(bond_dev->dev_addr, slave_dev->dev_addr))
@@ -1740,6 +1703,9 @@ static int __bond_release_one(struct net_device *bond_dev,
 
 	write_unlock_bh(&bond->lock);
 
+	/* release the slave from its bond */
+	bond->slave_cnt--;
+
 	bond_upper_dev_unlink(bond_dev, slave_dev);
 	/* unregister rx_handler early so bond_handle_frame wouldn't be called
 	 * for this slave anymore.
@@ -1764,9 +1730,6 @@ static int __bond_release_one(struct net_device *bond_dev,
 
 	bond->current_arp_slave = NULL;
 
-	/* release the slave from its bond */
-	bond_detach_slave(bond, slave);
-
 	if (!all && !bond->params.fail_over_mac) {
 		if (ether_addr_equal(bond_dev->dev_addr, slave->perm_hwaddr) &&
 		    bond_has_slaves(bond))
-- 
cgit 


From 47d4ab91e4472723f181075c81627374ca86816c Mon Sep 17 00:00:00 2001
From: John Fastabend <john.fastabend@gmail.com>
Date: Mon, 21 Oct 2013 14:28:02 -0700
Subject: macvlan: resolve ENOENT errors on creation

After the commit below attempting to create macvlan devices was
resulting in ENOENT errors,

# ip link add link p3p2 type macvlan
RTNETLINK answers: Invalid argument

This happens because netdev_upper_dev_link() is called before
register_netdevice() in the macvlan code. Through a call chain
this results in a call to __netdev_adjacent_dev_insert() and
finally a sysfs_create_link(). This requires the kobject of
the macvlan to be registered which is done in register_netdevice().
If there is no kobject which is the case here the ENOENT error
is seen on the command line.

To resolve this move the netdev_upper_dev_link() call below
the register_netdevice() call. This aligns with vlan driver
flow.

Regression introduced here,

commit 5831d66e8097aedfa3bc35941cf265ada2352317
Author: Veaceslav Falico <vfalico@redhat.com>
Date:   Wed Sep 25 09:20:32 2013 +0200

    net: create sysfs symlinks for neighbour devices

CC: Veaceslav Falico <vfalico@redhat.com>
CC: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Veaceslav Falico <vfalico@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/macvlan.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 9bf46bd19b87..cc9845ec91c1 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -828,22 +828,21 @@ int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
 		eth_hw_addr_inherit(dev, lowerdev);
 	}
 
+	port->count += 1;
+	err = register_netdevice(dev);
+	if (err < 0)
+		goto destroy_port;
+
 	err = netdev_upper_dev_link(lowerdev, dev);
 	if (err)
 		goto destroy_port;
 
-	port->count += 1;
-	err = register_netdevice(dev);
-	if (err < 0)
-		goto upper_dev_unlink;
 
 	list_add_tail_rcu(&vlan->list, &port->vlans);
 	netif_stacked_transfer_operstate(lowerdev, dev);
 
 	return 0;
 
-upper_dev_unlink:
-	netdev_upper_dev_unlink(lowerdev, dev);
 destroy_port:
 	port->count -= 1;
 	if (!port->count)
-- 
cgit 


From 50e4c905a0c782b8a5717ed0d907c53d82c16ce2 Mon Sep 17 00:00:00 2001
From: Igal Chernobelsky <igalc@ti.com>
Date: Mon, 9 Sep 2013 12:24:32 +0300
Subject: wl18xx: default config alignment with phy defaults

Driver default config is aligned with phy default parameters.

Now that RDL1_3 has 2 antennas defined by default we need to explicitly
define ht.mode to HT_MODE_WIDE to have SISO40 as default.

Signed-off-by: Yair Shapira <yair.shapira@ti.com>
Signed-off-by: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wl18xx/main.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
index d0daca1d23bc..b48d01db3ef4 100644
--- a/drivers/net/wireless/ti/wl18xx/main.c
+++ b/drivers/net/wireless/ti/wl18xx/main.c
@@ -505,7 +505,7 @@ static struct wlcore_conf wl18xx_conf = {
 
 static struct wl18xx_priv_conf wl18xx_default_priv_conf = {
 	.ht = {
-		.mode				= HT_MODE_DEFAULT,
+		.mode				= HT_MODE_WIDE,
 	},
 	.phy = {
 		.phy_standalone			= 0x00,
@@ -516,7 +516,7 @@ static struct wl18xx_priv_conf wl18xx_default_priv_conf = {
 		.auto_detect			= 0x00,
 		.dedicated_fem			= FEM_NONE,
 		.low_band_component		= COMPONENT_3_WAY_SWITCH,
-		.low_band_component_type	= 0x04,
+		.low_band_component_type	= 0x05,
 		.high_band_component		= COMPONENT_2_WAY_SWITCH,
 		.high_band_component_type	= 0x09,
 		.tcxo_ldo_voltage		= 0x00,
@@ -556,15 +556,15 @@ static struct wl18xx_priv_conf wl18xx_default_priv_conf = {
 		.per_chan_pwr_limit_arr_11p	= { 0xff, 0xff, 0xff, 0xff,
 						    0xff, 0xff, 0xff },
 		.psat				= 0,
-		.low_power_val			= 0x08,
-		.med_power_val			= 0x12,
-		.high_power_val			= 0x18,
-		.low_power_val_2nd		= 0x05,
-		.med_power_val_2nd		= 0x0a,
-		.high_power_val_2nd		= 0x14,
 		.external_pa_dc2dc		= 0,
 		.number_of_assembled_ant2_4	= 2,
 		.number_of_assembled_ant5	= 1,
+		.low_power_val			= 0xff,
+		.med_power_val			= 0xff,
+		.high_power_val			= 0xff,
+		.low_power_val_2nd		= 0xff,
+		.med_power_val_2nd		= 0xff,
+		.high_power_val_2nd		= 0xff,
 		.tx_rf_margin			= 1,
 	},
 };
-- 
cgit 


From bbd74557e5711e3d5f4d94d050ae05987c4fd0be Mon Sep 17 00:00:00 2001
From: Victor Goldenshtein <victorg@ti.com>
Date: Mon, 9 Sep 2013 12:24:33 +0300
Subject: wlcore: print active channel in the driver_state

Print current active channel/s and a role type for
that channel in the driver_state debugfs.

Signed-off-by: Victor Goldenshtein <victorg@ti.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wlcore/debugfs.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ti/wlcore/debugfs.c b/drivers/net/wireless/ti/wlcore/debugfs.c
index e17630c2a849..89893c717025 100644
--- a/drivers/net/wireless/ti/wlcore/debugfs.c
+++ b/drivers/net/wireless/ti/wlcore/debugfs.c
@@ -437,6 +437,7 @@ static ssize_t driver_state_read(struct file *file, char __user *user_buf,
 	int res = 0;
 	ssize_t ret;
 	char *buf;
+	struct wl12xx_vif *wlvif;
 
 #define DRIVER_STATE_BUF_LEN 1024
 
@@ -450,12 +451,28 @@ static ssize_t driver_state_read(struct file *file, char __user *user_buf,
 	(res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\
 			  #x " = " fmt "\n", wl->x))
 
+#define DRIVER_STATE_PRINT_GENERIC(x, fmt, args...)   \
+	(res += scnprintf(buf + res, DRIVER_STATE_BUF_LEN - res,\
+			  #x " = " fmt "\n", args))
+
 #define DRIVER_STATE_PRINT_LONG(x) DRIVER_STATE_PRINT(x, "%ld")
 #define DRIVER_STATE_PRINT_INT(x)  DRIVER_STATE_PRINT(x, "%d")
 #define DRIVER_STATE_PRINT_STR(x)  DRIVER_STATE_PRINT(x, "%s")
 #define DRIVER_STATE_PRINT_LHEX(x) DRIVER_STATE_PRINT(x, "0x%lx")
 #define DRIVER_STATE_PRINT_HEX(x)  DRIVER_STATE_PRINT(x, "0x%x")
 
+	wl12xx_for_each_wlvif_sta(wl, wlvif) {
+		if (!test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
+			continue;
+
+		DRIVER_STATE_PRINT_GENERIC(channel, "%d (%s)", wlvif->channel,
+					   wlvif->p2p ? "P2P-CL" : "STA");
+	}
+
+	wl12xx_for_each_wlvif_ap(wl, wlvif)
+		DRIVER_STATE_PRINT_GENERIC(channel, "%d (%s)", wlvif->channel,
+					   wlvif->p2p ? "P2P-GO" : "AP");
+
 	DRIVER_STATE_PRINT_INT(tx_blocks_available);
 	DRIVER_STATE_PRINT_INT(tx_allocated_blocks);
 	DRIVER_STATE_PRINT_INT(tx_allocated_pkts[0]);
@@ -474,7 +491,6 @@ static ssize_t driver_state_read(struct file *file, char __user *user_buf,
 	DRIVER_STATE_PRINT_INT(tx_blocks_freed);
 	DRIVER_STATE_PRINT_INT(rx_counter);
 	DRIVER_STATE_PRINT_INT(state);
-	DRIVER_STATE_PRINT_INT(channel);
 	DRIVER_STATE_PRINT_INT(band);
 	DRIVER_STATE_PRINT_INT(power_level);
 	DRIVER_STATE_PRINT_INT(sg_enabled);
-- 
cgit 


From 71e996bef90b23919f627a38367b9e8b44b77d37 Mon Sep 17 00:00:00 2001
From: Eliad Peller <eliad@wizery.com>
Date: Mon, 9 Sep 2013 12:24:34 +0300
Subject: wlcore: add ap_event_mask

Add new ap_event_mask field, to indicate events that
should be unmasked only when there's an ap interface.

This is done in order to avoid spurious wakeups
when we don't care about the incoming event anyway.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wl12xx/main.c   | 3 ++-
 drivers/net/wireless/ti/wl18xx/main.c   | 3 ++-
 drivers/net/wireless/ti/wlcore/event.c  | 1 +
 drivers/net/wireless/ti/wlcore/init.c   | 6 ++++++
 drivers/net/wireless/ti/wlcore/main.c   | 6 ++++++
 drivers/net/wireless/ti/wlcore/wlcore.h | 2 ++
 6 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ti/wl12xx/main.c b/drivers/net/wireless/ti/wl12xx/main.c
index 591526b99154..7d88a950383a 100644
--- a/drivers/net/wireless/ti/wl12xx/main.c
+++ b/drivers/net/wireless/ti/wl12xx/main.c
@@ -1262,9 +1262,10 @@ static int wl12xx_boot(struct wl1271 *wl)
 		BA_SESSION_RX_CONSTRAINT_EVENT_ID |
 		REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID |
 		INACTIVE_STA_EVENT_ID |
-		MAX_TX_RETRY_EVENT_ID |
 		CHANNEL_SWITCH_COMPLETE_EVENT_ID;
 
+	wl->ap_event_mask = MAX_TX_RETRY_EVENT_ID;
+
 	ret = wlcore_boot_run_firmware(wl);
 	if (ret < 0)
 		goto out;
diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
index b48d01db3ef4..3804a554ecf0 100644
--- a/drivers/net/wireless/ti/wl18xx/main.c
+++ b/drivers/net/wireless/ti/wl18xx/main.c
@@ -988,10 +988,11 @@ static int wl18xx_boot(struct wl1271 *wl)
 		BA_SESSION_RX_CONSTRAINT_EVENT_ID |
 		REMAIN_ON_CHANNEL_COMPLETE_EVENT_ID |
 		INACTIVE_STA_EVENT_ID |
-		MAX_TX_FAILURE_EVENT_ID |
 		CHANNEL_SWITCH_COMPLETE_EVENT_ID |
 		DFS_CHANNELS_CONFIG_COMPLETE_EVENT;
 
+	wl->ap_event_mask = MAX_TX_FAILURE_EVENT_ID;
+
 	ret = wlcore_boot_run_firmware(wl);
 	if (ret < 0)
 		goto out;
diff --git a/drivers/net/wireless/ti/wlcore/event.c b/drivers/net/wireless/ti/wlcore/event.c
index 67f61689b49e..8d3b34965db3 100644
--- a/drivers/net/wireless/ti/wlcore/event.c
+++ b/drivers/net/wireless/ti/wlcore/event.c
@@ -266,6 +266,7 @@ int wl1271_event_unmask(struct wl1271 *wl)
 {
 	int ret;
 
+	wl1271_debug(DEBUG_EVENT, "unmasking event_mask 0x%x", wl->event_mask);
 	ret = wl1271_acx_event_mbox_mask(wl, ~(wl->event_mask));
 	if (ret < 0)
 		return ret;
diff --git a/drivers/net/wireless/ti/wlcore/init.c b/drivers/net/wireless/ti/wlcore/init.c
index 5c6f11e157d9..7699f9d07e26 100644
--- a/drivers/net/wireless/ti/wlcore/init.c
+++ b/drivers/net/wireless/ti/wlcore/init.c
@@ -571,6 +571,12 @@ int wl1271_init_vif_specific(struct wl1271 *wl, struct ieee80211_vif *vif)
 		ret = wl1271_acx_sleep_auth(wl, WL1271_PSM_CAM);
 		if (ret < 0)
 			return ret;
+
+		/* unmask ap events */
+		wl->event_mask |= wl->ap_event_mask;
+		ret = wl1271_event_unmask(wl);
+		if (ret < 0)
+			return ret;
 	/* first STA, no APs */
 	} else if (wl->sta_count == 0 && wl->ap_count == 0 && !is_ap) {
 		u8 sta_auth = wl->conf.conn.sta_sleep_auth;
diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index bbdd10632373..31476656ac81 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -2623,6 +2623,12 @@ deinit:
 	    !test_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags))
 		goto unlock;
 
+	if (wl->ap_count == 0 && is_ap) {
+		/* mask ap events */
+		wl->event_mask &= ~wl->ap_event_mask;
+		wl1271_event_unmask(wl);
+	}
+
 	if (wl->ap_count == 0 && is_ap && wl->sta_count) {
 		u8 sta_auth = wl->conf.conn.sta_sleep_auth;
 		/* Configure for power according to debugfs */
diff --git a/drivers/net/wireless/ti/wlcore/wlcore.h b/drivers/net/wireless/ti/wlcore/wlcore.h
index 54ce5d5e84db..f9272229d73d 100644
--- a/drivers/net/wireless/ti/wlcore/wlcore.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore.h
@@ -307,6 +307,8 @@ struct wl1271 {
 
 	/* The mbox event mask */
 	u32 event_mask;
+	/* events to unmask only when ap interface is up */
+	u32 ap_event_mask;
 
 	/* Mailbox pointers */
 	u32 mbox_size;
-- 
cgit 


From 4b6741443264d20aa7a1cb52185a7d13589590fe Mon Sep 17 00:00:00 2001
From: Igal Chernobelsky <igalc@ti.com>
Date: Mon, 9 Sep 2013 12:24:35 +0300
Subject: wlcore: fix interrogate command length

Change interrogate command prototype to have command size
and returned buffer length.
This fixes the issue when command parameters are needed to
be passed to FW in addition to acx header as in the case with
get RSSI command, where role_id has to be passed.

Signed-off-by: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wlcore/acx.c      | 10 ++++++----
 drivers/net/wireless/ti/wlcore/cmd.c      |  9 +++++----
 drivers/net/wireless/ti/wlcore/cmd.h      |  3 ++-
 drivers/net/wireless/ti/wlcore/testmode.c |  3 ++-
 4 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/ti/wlcore/acx.c b/drivers/net/wireless/ti/wlcore/acx.c
index 7a970cd9c555..ec83675a2446 100644
--- a/drivers/net/wireless/ti/wlcore/acx.c
+++ b/drivers/net/wireless/ti/wlcore/acx.c
@@ -162,7 +162,8 @@ int wl1271_acx_mem_map(struct wl1271 *wl, struct acx_header *mem_map,
 
 	wl1271_debug(DEBUG_ACX, "acx mem map");
 
-	ret = wl1271_cmd_interrogate(wl, ACX_MEM_MAP, mem_map, len);
+	ret = wl1271_cmd_interrogate(wl, ACX_MEM_MAP, mem_map,
+				     sizeof(struct acx_header), len);
 	if (ret < 0)
 		return ret;
 
@@ -722,6 +723,7 @@ int wl1271_acx_statistics(struct wl1271 *wl, void *stats)
 	wl1271_debug(DEBUG_ACX, "acx statistics");
 
 	ret = wl1271_cmd_interrogate(wl, ACX_STATISTICS, stats,
+				     sizeof(struct acx_header),
 				     wl->stats.fw_stats_len);
 	if (ret < 0) {
 		wl1271_warning("acx statistics failed: %d", ret);
@@ -1470,8 +1472,8 @@ int wl12xx_acx_tsf_info(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 
 	tsf_info->role_id = wlvif->role_id;
 
-	ret = wl1271_cmd_interrogate(wl, ACX_TSF_INFO,
-				     tsf_info, sizeof(*tsf_info));
+	ret = wl1271_cmd_interrogate(wl, ACX_TSF_INFO, tsf_info,
+				sizeof(struct acx_header), sizeof(*tsf_info));
 	if (ret < 0) {
 		wl1271_warning("acx tsf info interrogate failed");
 		goto out;
@@ -1752,7 +1754,7 @@ int wlcore_acx_average_rssi(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 
 	acx->role_id = wlvif->role_id;
 	ret = wl1271_cmd_interrogate(wl, ACX_ROAMING_STATISTICS_TBL,
-				     acx, sizeof(*acx));
+				     acx, sizeof(*acx), sizeof(*acx));
 	if (ret	< 0) {
 		wl1271_warning("acx roaming statistics failed: %d", ret);
 		ret = -ENOMEM;
diff --git a/drivers/net/wireless/ti/wlcore/cmd.c b/drivers/net/wireless/ti/wlcore/cmd.c
index 9e5416f8764d..e65cdfced9b2 100644
--- a/drivers/net/wireless/ti/wlcore/cmd.c
+++ b/drivers/net/wireless/ti/wlcore/cmd.c
@@ -845,7 +845,8 @@ EXPORT_SYMBOL_GPL(wl1271_cmd_test);
  * @buf: buffer for the response, including all headers, must work with dma
  * @len: length of buf
  */
-int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len)
+int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf,
+			   size_t cmd_len, size_t res_len)
 {
 	struct acx_header *acx = buf;
 	int ret;
@@ -854,10 +855,10 @@ int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len)
 
 	acx->id = cpu_to_le16(id);
 
-	/* payload length, does not include any headers */
-	acx->len = cpu_to_le16(len - sizeof(*acx));
+	/* response payload length, does not include any headers */
+	acx->len = cpu_to_le16(res_len - sizeof(*acx));
 
-	ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, sizeof(*acx), len);
+	ret = wl1271_cmd_send(wl, CMD_INTERROGATE, acx, cmd_len, res_len);
 	if (ret < 0)
 		wl1271_error("INTERROGATE command failed");
 
diff --git a/drivers/net/wireless/ti/wlcore/cmd.h b/drivers/net/wireless/ti/wlcore/cmd.h
index fd34123047cd..323d4a856e4b 100644
--- a/drivers/net/wireless/ti/wlcore/cmd.h
+++ b/drivers/net/wireless/ti/wlcore/cmd.h
@@ -45,7 +45,8 @@ int wl12xx_start_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif,
 		     enum ieee80211_band band, int channel);
 int wl12xx_stop_dev(struct wl1271 *wl, struct wl12xx_vif *wlvif);
 int wl1271_cmd_test(struct wl1271 *wl, void *buf, size_t buf_len, u8 answer);
-int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf, size_t len);
+int wl1271_cmd_interrogate(struct wl1271 *wl, u16 id, void *buf,
+			   size_t cmd_len, size_t res_len);
 int wl1271_cmd_configure(struct wl1271 *wl, u16 id, void *buf, size_t len);
 int wlcore_cmd_configure_failsafe(struct wl1271 *wl, u16 id, void *buf,
 				  size_t len, unsigned long valid_rets);
diff --git a/drivers/net/wireless/ti/wlcore/testmode.c b/drivers/net/wireless/ti/wlcore/testmode.c
index a3b7d950d8e9..ddad58f614da 100644
--- a/drivers/net/wireless/ti/wlcore/testmode.c
+++ b/drivers/net/wireless/ti/wlcore/testmode.c
@@ -179,7 +179,8 @@ static int wl1271_tm_cmd_interrogate(struct wl1271 *wl, struct nlattr *tb[])
 		goto out_sleep;
 	}
 
-	ret = wl1271_cmd_interrogate(wl, ie_id, cmd, sizeof(*cmd));
+	ret = wl1271_cmd_interrogate(wl, ie_id, cmd,
+				     sizeof(struct acx_header), sizeof(*cmd));
 	if (ret < 0) {
 		wl1271_warning("testmode cmd interrogate failed: %d", ret);
 		goto out_free;
-- 
cgit 


From 93ac8488a24932e2a9a6309c144cf2126082416a Mon Sep 17 00:00:00 2001
From: Ido Reis <idor@ti.com>
Date: Mon, 9 Sep 2013 12:24:36 +0300
Subject: wlcore: fwlog dynamic mem_block control

number of fwlog mem_blocks can be configured using module param.
this is a fw debug feature: in case a large fw log data is busrted during
a short period of time, the memory get filled and data is lost.
this allows us to dynamicly set the fw log mem_block usage, although
configuring more mem_block for logger comes at the expense of TP.

Signed-off-by: Yair Shapira <yair.shapira@ti.com>
Signed-off-by: Ido Reis <idor@ti.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wlcore/conf.h |  5 ++++-
 drivers/net/wireless/ti/wlcore/main.c | 16 ++++++++++++++++
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ti/wlcore/conf.h b/drivers/net/wireless/ti/wlcore/conf.h
index 2b96ff821341..40995c42bef8 100644
--- a/drivers/net/wireless/ti/wlcore/conf.h
+++ b/drivers/net/wireless/ti/wlcore/conf.h
@@ -1274,6 +1274,9 @@ struct conf_rx_streaming_settings {
 	u8 always;
 } __packed;
 
+#define CONF_FWLOG_MIN_MEM_BLOCKS	2
+#define CONF_FWLOG_MAX_MEM_BLOCKS	16
+
 struct conf_fwlog {
 	/* Continuous or on-demand */
 	u8 mode;
@@ -1281,7 +1284,7 @@ struct conf_fwlog {
 	/*
 	 * Number of memory blocks dedicated for the FW logger
 	 *
-	 * Range: 1-3, or 0 to disable the FW logger
+	 * Range: 2-16, or 0 to disable the FW logger
 	 */
 	u8 mem_blocks;
 
diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 31476656ac81..9a07f4f67885 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -44,6 +44,7 @@
 #define WL1271_BOOT_RETRIES 3
 
 static char *fwlog_param;
+static int fwlog_mem_blocks = -1;
 static int bug_on_recovery = -1;
 static int no_recovery     = -1;
 
@@ -291,6 +292,18 @@ static void wlcore_adjust_conf(struct wl1271 *wl)
 {
 	/* Adjust settings according to optional module parameters */
 
+	/* Firmware Logger params */
+	if (fwlog_mem_blocks != -1) {
+		if (fwlog_mem_blocks >= CONF_FWLOG_MIN_MEM_BLOCKS &&
+		    fwlog_mem_blocks <= CONF_FWLOG_MAX_MEM_BLOCKS) {
+			wl->conf.fwlog.mem_blocks = fwlog_mem_blocks;
+		} else {
+			wl1271_error(
+				"Illegal fwlog_mem_blocks=%d using default %d",
+				fwlog_mem_blocks, wl->conf.fwlog.mem_blocks);
+		}
+	}
+
 	if (fwlog_param) {
 		if (!strcmp(fwlog_param, "continuous")) {
 			wl->conf.fwlog.mode = WL12XX_FWLOG_CONTINUOUS;
@@ -6158,6 +6171,9 @@ module_param_named(fwlog, fwlog_param, charp, 0);
 MODULE_PARM_DESC(fwlog,
 		 "FW logger options: continuous, ondemand, dbgpins or disable");
 
+module_param(fwlog_mem_blocks, int, S_IRUSR | S_IWUSR);
+MODULE_PARM_DESC(fwlog_mem_blocks, "fwlog mem_blocks");
+
 module_param(bug_on_recovery, int, S_IRUSR | S_IWUSR);
 MODULE_PARM_DESC(bug_on_recovery, "BUG() on fw recovery");
 
-- 
cgit 


From 9d8146d4e1ddb967ac6acff8c820c1ae38dfa2fc Mon Sep 17 00:00:00 2001
From: Ido Reis <idor@ti.com>
Date: Mon, 9 Sep 2013 12:24:37 +0300
Subject: wl12xx/wl18xx: update default fw logger's settings

update the fw logger mode to continuous, and output to dbgpins (uart).

Signed-off-by: Ido Reis <idor@ti.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wl12xx/main.c | 4 ++--
 drivers/net/wireless/ti/wl18xx/main.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/ti/wl12xx/main.c b/drivers/net/wireless/ti/wl12xx/main.c
index 7d88a950383a..d4d15de66e7a 100644
--- a/drivers/net/wireless/ti/wl12xx/main.c
+++ b/drivers/net/wireless/ti/wl12xx/main.c
@@ -333,11 +333,11 @@ static struct wlcore_conf wl12xx_conf = {
 		.always                        = 0,
 	},
 	.fwlog = {
-		.mode                         = WL12XX_FWLOG_ON_DEMAND,
+		.mode                         = WL12XX_FWLOG_CONTINUOUS,
 		.mem_blocks                   = 2,
 		.severity                     = 0,
 		.timestamp                    = WL12XX_FWLOG_TIMESTAMP_DISABLED,
-		.output                       = WL12XX_FWLOG_OUTPUT_HOST,
+		.output                       = WL12XX_FWLOG_OUTPUT_DBG_PINS,
 		.threshold                    = 0,
 	},
 	.rate = {
diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
index 3804a554ecf0..447387512dde 100644
--- a/drivers/net/wireless/ti/wl18xx/main.c
+++ b/drivers/net/wireless/ti/wl18xx/main.c
@@ -456,11 +456,11 @@ static struct wlcore_conf wl18xx_conf = {
 		.always                        = 0,
 	},
 	.fwlog = {
-		.mode                         = WL12XX_FWLOG_ON_DEMAND,
+		.mode                         = WL12XX_FWLOG_CONTINUOUS,
 		.mem_blocks                   = 2,
 		.severity                     = 0,
 		.timestamp                    = WL12XX_FWLOG_TIMESTAMP_DISABLED,
-		.output                       = WL12XX_FWLOG_OUTPUT_HOST,
+		.output                       = WL12XX_FWLOG_OUTPUT_DBG_PINS,
 		.threshold                    = 0,
 	},
 	.rate = {
-- 
cgit 


From c83cb8031bdd7923c7c5ea87accede4a5fc3282a Mon Sep 17 00:00:00 2001
From: Igal Chernobelsky <igalc@ti.com>
Date: Mon, 9 Sep 2013 12:24:38 +0300
Subject: wlcore/wl18xx/wl12xx: FW log params per chip arch

FW memory block size and FW log end marker parameters
are added to wl structure and are initialized per
chip architecture.

convert_hwaddr hw operation is added to convert chip
dependent FW internal address.

Copy from FW log is also simplified to copy the entire
memory block as FW logger utility is repsponsible
for parsing of FW log content.

Signed-off-by: Igal Chernobelsky <igalc@ti.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wl12xx/main.c     |  9 +++++++
 drivers/net/wireless/ti/wl18xx/main.c     |  9 +++++++
 drivers/net/wireless/ti/wlcore/hw_ops.h   |  9 +++++++
 drivers/net/wireless/ti/wlcore/io.h       |  4 +--
 drivers/net/wireless/ti/wlcore/main.c     | 44 ++++++++++++++++++-------------
 drivers/net/wireless/ti/wlcore/wlcore.h   |  7 +++++
 drivers/net/wireless/ti/wlcore/wlcore_i.h |  2 --
 7 files changed, 61 insertions(+), 23 deletions(-)

diff --git a/drivers/net/wireless/ti/wl12xx/main.c b/drivers/net/wireless/ti/wl12xx/main.c
index d4d15de66e7a..be7129ba16ad 100644
--- a/drivers/net/wireless/ti/wl12xx/main.c
+++ b/drivers/net/wireless/ti/wl12xx/main.c
@@ -717,6 +717,9 @@ static int wl12xx_identify_chip(struct wl1271 *wl)
 		goto out;
 	}
 
+	wl->fw_mem_block_size = 256;
+	wl->fwlog_end = 0x2000000;
+
 	/* common settings */
 	wl->scan_templ_id_2_4 = CMD_TEMPL_APP_PROBE_REQ_2_4_LEGACY;
 	wl->scan_templ_id_5 = CMD_TEMPL_APP_PROBE_REQ_5_LEGACY;
@@ -1649,6 +1652,11 @@ static bool wl12xx_lnk_low_prio(struct wl1271 *wl, u8 hlid,
 	return true;
 }
 
+static u32 wl12xx_convert_hwaddr(struct wl1271 *wl, u32 hwaddr)
+{
+	return hwaddr << 5;
+}
+
 static int wl12xx_setup(struct wl1271 *wl);
 
 static struct wlcore_ops wl12xx_ops = {
@@ -1685,6 +1693,7 @@ static struct wlcore_ops wl12xx_ops = {
 	.channel_switch		= wl12xx_cmd_channel_switch,
 	.pre_pkt_send		= NULL,
 	.set_peer_cap		= wl12xx_set_peer_cap,
+	.convert_hwaddr		= wl12xx_convert_hwaddr,
 	.lnk_high_prio		= wl12xx_lnk_high_prio,
 	.lnk_low_prio		= wl12xx_lnk_low_prio,
 };
diff --git a/drivers/net/wireless/ti/wl18xx/main.c b/drivers/net/wireless/ti/wl18xx/main.c
index 447387512dde..ec37b16585df 100644
--- a/drivers/net/wireless/ti/wl18xx/main.c
+++ b/drivers/net/wireless/ti/wl18xx/main.c
@@ -686,6 +686,9 @@ static int wl18xx_identify_chip(struct wl1271 *wl)
 		goto out;
 	}
 
+	wl->fw_mem_block_size = 272;
+	wl->fwlog_end = 0x40000000;
+
 	wl->scan_templ_id_2_4 = CMD_TEMPL_CFG_PROBE_REQ_2_4;
 	wl->scan_templ_id_5 = CMD_TEMPL_CFG_PROBE_REQ_5;
 	wl->sched_scan_templ_id_2_4 = CMD_TEMPL_PROBE_REQ_2_4_PERIODIC;
@@ -1605,6 +1608,11 @@ static bool wl18xx_lnk_low_prio(struct wl1271 *wl, u8 hlid,
 	return lnk->allocated_pkts < thold;
 }
 
+static u32 wl18xx_convert_hwaddr(struct wl1271 *wl, u32 hwaddr)
+{
+	return hwaddr & ~0x80000000;
+}
+
 static int wl18xx_setup(struct wl1271 *wl);
 
 static struct wlcore_ops wl18xx_ops = {
@@ -1642,6 +1650,7 @@ static struct wlcore_ops wl18xx_ops = {
 	.pre_pkt_send	= wl18xx_pre_pkt_send,
 	.sta_rc_update	= wl18xx_sta_rc_update,
 	.set_peer_cap	= wl18xx_set_peer_cap,
+	.convert_hwaddr = wl18xx_convert_hwaddr,
 	.lnk_high_prio	= wl18xx_lnk_high_prio,
 	.lnk_low_prio	= wl18xx_lnk_low_prio,
 };
diff --git a/drivers/net/wireless/ti/wlcore/hw_ops.h b/drivers/net/wireless/ti/wlcore/hw_ops.h
index 7fd260c02a0a..51f8d634d32f 100644
--- a/drivers/net/wireless/ti/wlcore/hw_ops.h
+++ b/drivers/net/wireless/ti/wlcore/hw_ops.h
@@ -222,6 +222,15 @@ wlcore_hw_set_peer_cap(struct wl1271 *wl,
 	return 0;
 }
 
+static inline u32
+wlcore_hw_convert_hwaddr(struct wl1271 *wl, u32 hwaddr)
+{
+	if (!wl->ops->convert_hwaddr)
+		BUG_ON(1);
+
+	return wl->ops->convert_hwaddr(wl, hwaddr);
+}
+
 static inline bool
 wlcore_hw_lnk_high_prio(struct wl1271 *wl, u8 hlid,
 			struct wl1271_link *lnk)
diff --git a/drivers/net/wireless/ti/wlcore/io.h b/drivers/net/wireless/ti/wlcore/io.h
index af7d9f9b3b4d..07e3d6a049ad 100644
--- a/drivers/net/wireless/ti/wlcore/io.h
+++ b/drivers/net/wireless/ti/wlcore/io.h
@@ -165,8 +165,8 @@ static inline int __must_check wlcore_read_hwaddr(struct wl1271 *wl, int hwaddr,
 	int physical;
 	int addr;
 
-	/* Addresses are stored internally as addresses to 32 bytes blocks */
-	addr = hwaddr << 5;
+	/* Convert from FW internal address which is chip arch dependent */
+	addr = wl->ops->convert_hwaddr(wl, hwaddr);
 
 	physical = wlcore_translate_addr(wl, addr);
 
diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 9a07f4f67885..a742860349df 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -800,19 +800,10 @@ void wl12xx_queue_recovery_work(struct wl1271 *wl)
 
 size_t wl12xx_copy_fwlog(struct wl1271 *wl, u8 *memblock, size_t maxlen)
 {
-	size_t len = 0;
-
-	/* The FW log is a length-value list, find where the log end */
-	while (len < maxlen) {
-		if (memblock[len] == 0)
-			break;
-		if (len + memblock[len] + 1 > maxlen)
-			break;
-		len += memblock[len] + 1;
-	}
+	size_t len;
 
 	/* Make sure we have enough room */
-	len = min(len, (size_t)(PAGE_SIZE - wl->fwlog_size));
+	len = min(maxlen, (size_t)(PAGE_SIZE - wl->fwlog_size));
 
 	/* Fill the FW log file, consumed by the sysfs fwlog entry */
 	memcpy(wl->fwlog + wl->fwlog_size, memblock, len);
@@ -821,10 +812,9 @@ size_t wl12xx_copy_fwlog(struct wl1271 *wl, u8 *memblock, size_t maxlen)
 	return len;
 }
 
-#define WLCORE_FW_LOG_END 0x2000000
-
 static void wl12xx_read_fwlog_panic(struct wl1271 *wl)
 {
+	struct wlcore_partition_set part, old_part;
 	u32 addr;
 	u32 offset;
 	u32 end_of_log;
@@ -837,7 +827,7 @@ static void wl12xx_read_fwlog_panic(struct wl1271 *wl)
 
 	wl1271_info("Reading FW panic log");
 
-	block = kmalloc(WL12XX_HW_BLOCK_SIZE, GFP_KERNEL);
+	block = kmalloc(wl->fw_mem_block_size, GFP_KERNEL);
 	if (!block)
 		return;
 
@@ -863,17 +853,31 @@ static void wl12xx_read_fwlog_panic(struct wl1271 *wl)
 
 	if (wl->conf.fwlog.mode == WL12XX_FWLOG_CONTINUOUS) {
 		offset = sizeof(addr) + sizeof(struct wl1271_rx_descriptor);
-		end_of_log = WLCORE_FW_LOG_END;
+		end_of_log = wl->fwlog_end;
 	} else {
 		offset = sizeof(addr);
 		end_of_log = addr;
 	}
 
+	old_part = wl->curr_part;
+	memset(&part, 0, sizeof(part));
+
 	/* Traverse the memory blocks linked list */
 	do {
-		memset(block, 0, WL12XX_HW_BLOCK_SIZE);
-		ret = wlcore_read_hwaddr(wl, addr, block, WL12XX_HW_BLOCK_SIZE,
-					 false);
+		part.mem.start = wlcore_hw_convert_hwaddr(wl, addr);
+		part.mem.size  = PAGE_SIZE;
+
+		ret = wlcore_set_partition(wl, &part);
+		if (ret < 0) {
+			wl1271_error("%s: set_partition start=0x%X size=%d",
+				__func__, part.mem.start, part.mem.size);
+			goto out;
+		}
+
+		memset(block, 0, wl->fw_mem_block_size);
+		ret = wlcore_read_hwaddr(wl, addr, block,
+					wl->fw_mem_block_size, false);
+
 		if (ret < 0)
 			goto out;
 
@@ -884,8 +888,9 @@ static void wl12xx_read_fwlog_panic(struct wl1271 *wl)
 		 * on demand mode and is equal to 0x2000000 in continuous mode.
 		 */
 		addr = le32_to_cpup((__le32 *)block);
+
 		if (!wl12xx_copy_fwlog(wl, block + offset,
-				       WL12XX_HW_BLOCK_SIZE - offset))
+					wl->fw_mem_block_size - offset))
 			break;
 	} while (addr && (addr != end_of_log));
 
@@ -893,6 +898,7 @@ static void wl12xx_read_fwlog_panic(struct wl1271 *wl)
 
 out:
 	kfree(block);
+	wlcore_set_partition(wl, &old_part);
 }
 
 static void wlcore_print_recovery(struct wl1271 *wl)
diff --git a/drivers/net/wireless/ti/wlcore/wlcore.h b/drivers/net/wireless/ti/wlcore/wlcore.h
index f9272229d73d..06efc12a39e5 100644
--- a/drivers/net/wireless/ti/wlcore/wlcore.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore.h
@@ -110,6 +110,7 @@ struct wlcore_ops {
 			    struct ieee80211_sta_ht_cap *ht_cap,
 			    bool allow_ht_operation,
 			    u32 rate_set, u8 hlid);
+	u32 (*convert_hwaddr)(struct wl1271 *wl, u32 hwaddr);
 	bool (*lnk_high_prio)(struct wl1271 *wl, u8 hlid,
 			      struct wl1271_link *lnk);
 	bool (*lnk_low_prio)(struct wl1271 *wl, u8 hlid,
@@ -290,6 +291,12 @@ struct wl1271 {
 	/* Number of valid bytes in the FW log buffer */
 	ssize_t fwlog_size;
 
+	/* FW log end marker */
+	u32 fwlog_end;
+
+	/* FW memory block size */
+	u32 fw_mem_block_size;
+
 	/* Sysfs FW log entry readers wait queue */
 	wait_queue_head_t fwlog_waitq;
 
diff --git a/drivers/net/wireless/ti/wlcore/wlcore_i.h b/drivers/net/wireless/ti/wlcore/wlcore_i.h
index 2a50e089b0e7..ce7261ce8b59 100644
--- a/drivers/net/wireless/ti/wlcore/wlcore_i.h
+++ b/drivers/net/wireless/ti/wlcore/wlcore_i.h
@@ -550,6 +550,4 @@ void wl1271_rx_filter_flatten_fields(struct wl12xx_rx_filter *filter,
 #define HW_HT_RATES_OFFSET	16
 #define HW_MIMO_RATES_OFFSET	24
 
-#define WL12XX_HW_BLOCK_SIZE	256
-
 #endif /* __WLCORE_I_H__ */
-- 
cgit 


From 5cc14c04c9c8faee3c9fbbfec87bcc9c7ae75b89 Mon Sep 17 00:00:00 2001
From: Barak Bercovitz <barak@wizery.com>
Date: Mon, 9 Sep 2013 12:24:39 +0300
Subject: wlcore: read fw panic log only in host mode

Reading FW panic log is only supported in host mode (SDIO)

Signed-off-by: Barak Bercovitz <barak@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wlcore/main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index a742860349df..53bb353e8653 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -943,7 +943,8 @@ static void wl1271_recovery_work(struct work_struct *work)
 		goto out_unlock;
 
 	if (!test_bit(WL1271_FLAG_INTENDED_FW_RECOVERY, &wl->flags)) {
-		wl12xx_read_fwlog_panic(wl);
+		if (wl->conf.fwlog.output == WL12XX_FWLOG_OUTPUT_HOST)
+			wl12xx_read_fwlog_panic(wl);
 		wlcore_print_recovery(wl);
 	}
 
-- 
cgit 


From c2e6424259f69234c1a6022cd25ebf06040c4846 Mon Sep 17 00:00:00 2001
From: Barak Bercovitz <barak@wizery.com>
Date: Mon, 9 Sep 2013 12:24:40 +0300
Subject: wlcore: Allow stopping fw log in recovery

The FW panic log is read during recovery work.
It has to be stopped properly before reading. otherwise,
inconsistent data might be read which cause the driver
to freeze.

__wlcore_cmd_send has to work for the special case of
CMD_STOP_FWLOGGER, while in recovery, in order to stop
the fw log before it is read.

Signed-off-by: Barak Bercovitz <barak@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wlcore/cmd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ti/wlcore/cmd.c b/drivers/net/wireless/ti/wlcore/cmd.c
index e65cdfced9b2..34d9dfff2ad3 100644
--- a/drivers/net/wireless/ti/wlcore/cmd.c
+++ b/drivers/net/wireless/ti/wlcore/cmd.c
@@ -60,7 +60,8 @@ static int __wlcore_cmd_send(struct wl1271 *wl, u16 id, void *buf,
 	u16 status;
 	u16 poll_count = 0;
 
-	if (WARN_ON(unlikely(wl->state == WLCORE_STATE_RESTARTING)))
+	if (WARN_ON(wl->state == WLCORE_STATE_RESTARTING &&
+		    id != CMD_STOP_FWLOGGER))
 		return -EIO;
 
 	cmd = buf;
-- 
cgit 


From 2473ec8f909d8c46e52e13f6fc3215c9c08400c8 Mon Sep 17 00:00:00 2001
From: Barak Bercovitz <barak@wizery.com>
Date: Mon, 9 Sep 2013 12:24:41 +0300
Subject: wlcore: wakeup from ELP before starting recovery

Make sure the FW is awake when entering recovery. This is useful for
reading the FW panic log and also some FW registers giving us crash
report stats.

We must do this before interrupts are disabled since we rely on an
interrupt to complete the wakeup.

If the wakeup fails, continue recovery normally. All read/writes will be
blocked and won't do any harm.

Signed-off-by: Barak Bercovitz <barak@wizery.com>
Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wlcore/main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index 53bb353e8653..a9ee23417716 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -793,6 +793,7 @@ void wl12xx_queue_recovery_work(struct wl1271 *wl)
 	if (wl->state == WLCORE_STATE_ON) {
 		wl->state = WLCORE_STATE_RESTARTING;
 		set_bit(WL1271_FLAG_RECOVERY_IN_PROGRESS, &wl->flags);
+		wl1271_ps_elp_wakeup(wl);
 		wlcore_disable_interrupts_nosync(wl);
 		ieee80211_queue_work(wl->hw, &wl->recovery_work);
 	}
-- 
cgit 


From e9687ea9caaf9f961df8144a95ca63ec77c02b49 Mon Sep 17 00:00:00 2001
From: Eliad Peller <eliad@wizery.com>
Date: Mon, 9 Sep 2013 12:24:43 +0300
Subject: wlcore: fix started_vifs calculation

wlcore configures different dwell times according to number
of active interfaces (in order to prevent hurting VO during
scan).

However, determining active vif only according to
bss_conf->idle is not explicit enough, and might result
in non-started vifs being counted as started as well
(e.g. unassociated sta during sta).

Fix it by checking for explicit conditions according
to the vif type.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wlcore/scan.c | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ti/wlcore/scan.c b/drivers/net/wireless/ti/wlcore/scan.c
index 13e743df2e31..7ed86203304b 100644
--- a/drivers/net/wireless/ti/wlcore/scan.c
+++ b/drivers/net/wireless/ti/wlcore/scan.c
@@ -92,9 +92,31 @@ out:
 static void wlcore_started_vifs_iter(void *data, u8 *mac,
 				     struct ieee80211_vif *vif)
 {
+	struct wl12xx_vif *wlvif = wl12xx_vif_to_data(vif);
+	bool active = false;
 	int *count = (int *)data;
 
-	if (!vif->bss_conf.idle)
+	/*
+	 * count active interfaces according to interface type.
+	 * checking only bss_conf.idle is bad for some cases, e.g.
+	 * we don't want to count sta in p2p_find as active interface.
+	 */
+	switch (wlvif->bss_type) {
+	case BSS_TYPE_STA_BSS:
+		if (test_bit(WLVIF_FLAG_STA_ASSOCIATED, &wlvif->flags))
+			active = true;
+		break;
+
+	case BSS_TYPE_AP_BSS:
+		if (wlvif->wl->active_sta_count > 0)
+			active = true;
+		break;
+
+	default:
+		break;
+	}
+
+	if (active)
 		(*count)++;
 }
 
-- 
cgit 


From 8d3c1fd8c3a4a4a1a319491cdd09bd7eca23ba3b Mon Sep 17 00:00:00 2001
From: Eliad Peller <eliad@wizery.com>
Date: Mon, 9 Sep 2013 12:24:44 +0300
Subject: wlcore: save last regdom configuration on stop

In order to reconfigure the correct reg domain on
recovery, we have to save the current configuration
before clearing it (wl->reg_ch_conf_pending is
considered before configuring a new regdomain).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
---
 drivers/net/wireless/ti/wlcore/main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index a9ee23417716..0368b9cbfb89 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -1949,8 +1949,10 @@ static void wlcore_op_stop_locked(struct wl1271 *wl)
 
 	/*
 	 * FW channels must be re-calibrated after recovery,
-	 * clear the last Reg-Domain channel configuration.
+	 * save current Reg-Domain channel configuration and clear it.
 	 */
+	memcpy(wl->reg_ch_conf_pending, wl->reg_ch_conf_last,
+	       sizeof(wl->reg_ch_conf_pending));
 	memset(wl->reg_ch_conf_last, 0, sizeof(wl->reg_ch_conf_last));
 }
 
-- 
cgit 


From ac888a8895b1b4c4aa6c7df70ecc0056b1e96787 Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@debian.org>
Date: Wed, 23 Oct 2013 00:49:30 +0200
Subject: ARM: dts: omap3-n900: Add pinctrl for i2c devices

Add pin muxing support for the Nokia N900 i2c controllers.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-n900.dts | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index e13b697f8bce..ad4edd95b5b1 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -28,7 +28,35 @@
 
 };
 
+&omap3_pmx_core {
+	pinctrl-names = "default";
+
+	i2c1_pins: pinmux_i2c1_pins {
+		pinctrl-single,pins = <
+			0x18a (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c1_scl */
+			0x18c (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c1_sda */
+		>;
+	};
+
+	i2c2_pins: pinmux_i2c2_pins {
+		pinctrl-single,pins = <
+			0x18e (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c2_scl */
+			0x190 (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c2_sda */
+		>;
+	};
+
+	i2c3_pins: pinmux_i2c3_pins {
+		pinctrl-single,pins = <
+			0x192 (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c3_scl */
+			0x194 (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c3_sda */
+		>;
+	};
+};
+
 &i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
+
 	clock-frequency = <2200000>;
 
 	twl: twl@48 {
@@ -39,6 +67,7 @@
 };
 
 #include "twl4030.dtsi"
+#include "twl4030_omap3.dtsi"
 
 &twl_gpio {
 	ti,pullups	= <0x0>;
@@ -46,10 +75,16 @@
 };
 
 &i2c2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c2_pins>;
+
 	clock-frequency = <400000>;
 };
 
 &i2c3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c3_pins>;
+
 	clock-frequency = <100000>;
 };
 
-- 
cgit 


From 5fcdb9dc98e76001060bb89e3b1269384f9f5201 Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Sun, 20 Oct 2013 15:14:57 -0700
Subject: gpiolib: devres: fix devm_gpiod_get_index()

Fix the return value if devm_gpiod_get_index(). It was returning 0 while
it should return the obtained GPIO descriptor.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/devres.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/devres.c b/drivers/gpio/devres.c
index 2caa2571734e..fceebdc9e152 100644
--- a/drivers/gpio/devres.c
+++ b/drivers/gpio/devres.c
@@ -80,7 +80,7 @@ struct gpio_desc *__must_check devm_gpiod_get_index(struct device *dev,
 	*dr = desc;
 	devres_add(dev, dr);
 
-	return 0;
+	return desc;
 }
 EXPORT_SYMBOL(devm_gpiod_get_index);
 
-- 
cgit 


From 48fc98645062b459a8d136483ee7ebbc2087185f Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@debian.org>
Date: Wed, 23 Oct 2013 00:49:31 +0200
Subject: ARM: dts: omap3-n900: Fix i2c bus speed

Fix the bus speed of i2c bus 2 and 3.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-n900.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index ad4edd95b5b1..7dd6fb6488e0 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -78,14 +78,14 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c2_pins>;
 
-	clock-frequency = <400000>;
+	clock-frequency = <100000>;
 };
 
 &i2c3 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c3_pins>;
 
-	clock-frequency = <100000>;
+	clock-frequency = <400000>;
 };
 
 &mmc1 {
-- 
cgit 


From 7a89eecfdf745bcc3d39cbd5088ad821c4fc62c4 Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@debian.org>
Date: Wed, 23 Oct 2013 00:49:32 +0200
Subject: ARM: dts: omap3-n900: Add UART support

Add UART support to Nokia N900.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-n900.dts | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index 7dd6fb6488e0..92262680cb85 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -31,6 +31,20 @@
 &omap3_pmx_core {
 	pinctrl-names = "default";
 
+	uart2_pins: pinmux_uart2_pins {
+		pinctrl-single,pins = <
+			0x14a (PIN_INPUT | MUX_MODE0)		/* uart2_rx */
+			0x148 (PIN_OUTPUT | MUX_MODE0)		/* uart2_tx */
+		>;
+	};
+
+	uart3_pins: pinmux_uart3_pins {
+		pinctrl-single,pins = <
+			0x16e (PIN_INPUT | MUX_MODE0)		/* uart3_rx */
+			0x170 (PIN_OUTPUT | MUX_MODE0)		/* uart3_tx */
+		>;
+	};
+
 	i2c1_pins: pinmux_i2c1_pins {
 		pinctrl-single,pins = <
 			0x18a (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c1_scl */
@@ -127,3 +141,17 @@
 	mode = <2>;
 	power = <50>;
 };
+
+&uart1 {
+	status = "disabled";
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart2_pins>;
+};
+
+&uart3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart3_pins>;
+};
-- 
cgit 


From f1751cff82b8e568fb2197f1f74dbf59aa86f9b0 Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@debian.org>
Date: Wed, 23 Oct 2013 00:49:33 +0200
Subject: ARM: dts: omap3-n900: Add support for SD cards

Add support for external SD card slot.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-n900.dts | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index 92262680cb85..01a437edf93c 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -65,6 +65,17 @@
 			0x194 (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c3_sda */
 		>;
 	};
+
+	mmc1_pins: pinmux_mmc1_pins {
+		pinctrl-single,pins = <
+			0x114 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_clk */
+			0x116 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_cmd */
+			0x118 (PIN_INPUT_PULLUP | MUX_MODE0) 	/* sdmmc1_dat0 */
+			0x11a (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_dat1 */
+			0x11c (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_dat2 */
+			0x11e (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_dat3 */
+		>;
+	};
 };
 
 &i2c1 {
@@ -103,7 +114,11 @@
 };
 
 &mmc1 {
-	status = "disabled";
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc1_pins>;
+	vmmc-supply = <&vmmc1>;
+	bus-width = <4>;
+	cd-gpios = <&gpio6 0 GPIO_ACTIVE_HIGH>; /* 160 */
 };
 
 &mmc2 {
-- 
cgit 


From 3931c839e8886b47e37969b85edc8db25a48dc5a Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@debian.org>
Date: Wed, 23 Oct 2013 00:49:34 +0200
Subject: ARM: dts: omap3-n900: GPIO key definitions

Add device tree node for the GPIO keys provided by the
N900 board. This is a simple conversion of the existing
board code.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-n900.dts | 48 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index 01a437edf93c..5082cb6ab160 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -26,6 +26,54 @@
 		reg = <0x80000000 0x10000000>; /* 256 MB */
 	};
 
+	gpio_keys {
+		compatible = "gpio-keys";
+
+		camera_lens_cover {
+			label = "Camera Lens Cover";
+			gpios = <&gpio4 14 GPIO_ACTIVE_LOW>; /* 110 */
+			linux,input-type = <5>; /* EV_SW */
+			linux,code = <0x09>; /* SW_CAMERA_LENS_COVER */
+			gpio-key,wakeup;
+		};
+
+		camera_focus {
+			label = "Camera Focus";
+			gpios = <&gpio3 4 GPIO_ACTIVE_LOW>; /* 68 */
+			linux,code = <0x210>; /* KEY_CAMERA_FOCUS */
+			gpio-key,wakeup;
+		};
+
+		camera_capture {
+			label = "Camera Capture";
+			gpios = <&gpio3 5 GPIO_ACTIVE_LOW>; /* 69 */
+			linux,code = <0xd4>; /* KEY_CAMERA */
+			gpio-key,wakeup;
+		};
+
+		lock_button {
+			label = "Lock Button";
+			gpios = <&gpio4 17 GPIO_ACTIVE_LOW>; /* 113 */
+			linux,code = <0x98>; /* KEY_SCREENLOCK */
+			gpio-key,wakeup;
+		};
+
+		keypad_slide {
+			label = "Keypad Slide";
+			gpios = <&gpio3 7 GPIO_ACTIVE_LOW>; /* 71 */
+			linux,input-type = <5>; /* EV_SW */
+			linux,code = <0x0a>; /* SW_KEYPAD_SLIDE */
+			gpio-key,wakeup;
+		};
+
+		proximity_sensor {
+			label = "Proximity Sensor";
+			gpios = <&gpio3 25 GPIO_ACTIVE_HIGH>; /* 89 */
+			linux,input-type = <5>; /* EV_SW */
+			linux,code = <0x0b>; /* SW_FRONT_PROXIMITY */
+		};
+	};
+
 };
 
 &omap3_pmx_core {
-- 
cgit 


From 06ba7a61331c1e5fc908c3acf06006da73d32ed4 Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@debian.org>
Date: Wed, 23 Oct 2013 00:49:35 +0200
Subject: ARM: dts: omap3-n900: Add vibrator device

Add support for Nokia N900's vibrator.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-n900.dts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index 5082cb6ab160..a02f64f65fae 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -142,6 +142,13 @@
 #include "twl4030.dtsi"
 #include "twl4030_omap3.dtsi"
 
+&twl {
+	twl_audio: audio {
+		compatible = "ti,twl4030-audio";
+		ti,enable-vibra = <1>;
+	};
+};
+
 &twl_gpio {
 	ti,pullups	= <0x0>;
 	ti,pulldowns	= <0x03ff3f>; /* BIT(0..5) | BIT(8..17) */
-- 
cgit 


From b2b9b258042f23fcfeb4f4b8878aa58664168f26 Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@debian.org>
Date: Wed, 23 Oct 2013 00:49:36 +0200
Subject: ARM: dts: omap3-n900: Add LP5523 support

Add support for LP5523 device.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-n900.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index a02f64f65fae..c7e0d2d668ba 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -159,6 +159,11 @@
 	pinctrl-0 = <&i2c2_pins>;
 
 	clock-frequency = <100000>;
+
+	bq27200: bq27200@55 {
+		compatible = "ti,bq27200";
+		reg = <0x55>;
+	};
 };
 
 &i2c3 {
-- 
cgit 


From b86684d70f1e45cae4a85686e6f78d5db341fa85 Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@debian.org>
Date: Wed, 23 Oct 2013 00:49:37 +0200
Subject: ARM: dts: TWL4030: Add missing regulators

The twl4030.dtsi is missing some regulators. This patch adds
the missing ones and orders the regulators alphabetically.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/twl4030.dtsi | 44 ++++++++++++++++++++++++++++++++++++++----
 1 file changed, 40 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/twl4030.dtsi b/arch/arm/boot/dts/twl4030.dtsi
index ae6a17aed9ee..cb5afcdb5d35 100644
--- a/arch/arm/boot/dts/twl4030.dtsi
+++ b/arch/arm/boot/dts/twl4030.dtsi
@@ -23,6 +23,22 @@
 		compatible = "ti,twl4030-wdt";
 	};
 
+	vaux1: regulator-vaux1 {
+		compatible = "ti,twl4030-vaux1";
+	};
+
+	vaux2: regulator-vaux2 {
+		compatible = "ti,twl4030-vaux2";
+	};
+
+	vaux3: regulator-vaux3 {
+		compatible = "ti,twl4030-vaux3";
+	};
+
+	vaux4: regulator-vaux4 {
+		compatible = "ti,twl4030-vaux4";
+	};
+
 	vcc: regulator-vdd1 {
 		compatible = "ti,twl4030-vdd1";
 		regulator-min-microvolt = <600000>;
@@ -35,10 +51,20 @@
 		regulator-max-microvolt = <1800000>;
 	};
 
-	vpll2: regulator-vpll2 {
-		compatible = "ti,twl4030-vpll2";
-		regulator-min-microvolt = <1800000>;
-		regulator-max-microvolt = <1800000>;
+	vio: regulator-vio {
+		compatible = "ti,twl4030-vio";
+	};
+
+	vintana1: regulator-vintana1 {
+		compatible = "ti,twl4030-vintana1";
+	};
+
+	vintana2: regulator-vintana2 {
+		compatible = "ti,twl4030-vintana2";
+	};
+
+	vintdig: regulator-vintdig {
+		compatible = "ti,twl4030-vintdig";
 	};
 
 	vmmc1: regulator-vmmc1 {
@@ -65,6 +91,16 @@
 		compatible = "ti,twl4030-vusb3v1";
 	};
 
+	vpll1: regulator-vpll1 {
+		compatible = "ti,twl4030-vpll1";
+	};
+
+	vpll2: regulator-vpll2 {
+		compatible = "ti,twl4030-vpll2";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+	};
+
 	vsim: regulator-vsim {
 		compatible = "ti,twl4030-vsim";
 		regulator-min-microvolt = <1800000>;
-- 
cgit 


From 9cdbbadd11643778f9a6b5df9aa05e365daf9ad1 Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@debian.org>
Date: Wed, 23 Oct 2013 00:49:38 +0200
Subject: ARM: dts: omap3-n900: Specify regulator info

Add regulator names and voltage information to
the Nokia N900 DTS file.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-n900.dts | 84 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 84 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index c7e0d2d668ba..0a45af3ec97e 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -142,6 +142,90 @@
 #include "twl4030.dtsi"
 #include "twl4030_omap3.dtsi"
 
+&vaux1 {
+	regulator-name = "V28";
+	regulator-min-microvolt = <2800000>;
+	regulator-max-microvolt = <2800000>;
+	regulator-always-on; /* due battery cover sensor */
+};
+
+&vaux2 {
+	regulator-name = "VCSI";
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <1800000>;
+};
+
+&vaux3 {
+	regulator-name = "VMMC2_30";
+	regulator-min-microvolt = <2800000>;
+	regulator-max-microvolt = <3000000>;
+};
+
+&vaux4 {
+	regulator-name = "VCAM_ANA_28";
+	regulator-min-microvolt = <2800000>;
+	regulator-max-microvolt = <2800000>;
+};
+
+&vmmc1 {
+	regulator-name = "VMMC1";
+	regulator-min-microvolt = <1850000>;
+	regulator-max-microvolt = <3150000>;
+};
+
+&vmmc2 {
+	regulator-name = "V28_A";
+	regulator-min-microvolt = <2800000>;
+	regulator-max-microvolt = <3000000>;
+	regulator-always-on; /* due VIO leak to AIC34 VDDs */
+};
+
+&vpll1 {
+	regulator-name = "VPLL";
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <1800000>;
+	regulator-always-on;
+};
+
+&vpll2 {
+	regulator-name = "VSDI_CSI";
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <1800000>;
+	regulator-always-on;
+};
+
+&vsim {
+	regulator-name = "VMMC2_IO_18";
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <1800000>;
+};
+
+&vio {
+	regulator-name = "VIO";
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <1800000>;
+
+};
+
+&vintana1 {
+	regulator-name = "VINTANA1";
+	/* fixed to 1500000 */
+	regulator-always-on;
+};
+
+&vintana2 {
+	regulator-name = "VINTANA2";
+	regulator-min-microvolt = <2750000>;
+	regulator-max-microvolt = <2750000>;
+	regulator-always-on;
+};
+
+&vintdig {
+	regulator-name = "VINTDIG";
+	/* fixed to 1500000 */
+	regulator-always-on;
+};
+
 &twl {
 	twl_audio: audio {
 		compatible = "ti,twl4030-audio";
-- 
cgit 


From 8699d2dd21807bd8c8a6315060146b877675b58c Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@debian.org>
Date: Wed, 23 Oct 2013 00:49:39 +0200
Subject: ARM: dts: omap3-n900: Add NAND support

This patch adds supports for Nokia N900 NAND memory.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-n900.dts | 72 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index 0a45af3ec97e..999a80c7a4c9 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -273,6 +273,78 @@
 	status = "disabled";
 };
 
+&gpmc {
+	ranges = <0 0 0x04000000 0x10000000>; /* 256MB */
+
+	/* gpio-irq for dma: 65 */
+
+	onenand@0,0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		reg = <0 0 0x10000000>;
+
+		gpmc,sync-read;
+		gpmc,sync-write;
+		gpmc,burst-length = <16>;
+		gpmc,burst-read;
+		gpmc,burst-wrap;
+		gpmc,burst-write;
+		gpmc,device-width = <2>; /* GPMC_DEVWIDTH_16BIT */
+		gpmc,mux-add-data = <2>; /* GPMC_MUX_AD */
+		gpmc,cs-on-ns = <0>;
+		gpmc,cs-rd-off-ns = <87>;
+		gpmc,cs-wr-off-ns = <87>;
+		gpmc,adv-on-ns = <0>;
+		gpmc,adv-rd-off-ns = <10>;
+		gpmc,adv-wr-off-ns = <10>;
+		gpmc,oe-on-ns = <15>;
+		gpmc,oe-off-ns = <87>;
+		gpmc,we-on-ns = <0>;
+		gpmc,we-off-ns = <87>;
+		gpmc,rd-cycle-ns = <112>;
+		gpmc,wr-cycle-ns = <112>;
+		gpmc,access-ns = <81>;
+		gpmc,page-burst-access-ns = <15>;
+		gpmc,bus-turnaround-ns = <0>;
+		gpmc,cycle2cycle-delay-ns = <0>;
+		gpmc,wait-monitoring-ns = <0>;
+		gpmc,clk-activation-ns = <5>;
+		gpmc,wr-data-mux-bus-ns = <30>;
+		gpmc,wr-access-ns = <81>;
+		gpmc,sync-clk-ps = <15000>;
+
+		/*
+		 * MTD partition table corresponding to Nokia's
+		 * Maemo 5 (Fremantle) release.
+		 */
+		partition@0 {
+			label = "bootloader";
+			reg = <0x00000000 0x00020000>;
+			read-only;
+		};
+		partition@1 {
+			label = "config";
+			reg = <0x00020000 0x00060000>;
+		};
+		partition@2 {
+			label = "log";
+			reg = <0x00080000 0x00040000>;
+		};
+		partition@3 {
+			label = "kernel";
+			reg = <0x000c0000 0x00200000>;
+		};
+		partition@4 {
+			label = "initfs";
+			reg = <0x002c0000 0x00200000>;
+		};
+		partition@5 {
+			label = "rootfs";
+			reg = <0x004c0000 0x0fb40000>;
+		};
+	};
+};
+
 &mcspi1 {
 	/*
 	 * For some reason, touchscreen is necessary for screen to work at
-- 
cgit 


From d1e6f51646f2bed16826fd8e4fc1b5f4188d086e Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@debian.org>
Date: Wed, 23 Oct 2013 00:49:40 +0200
Subject: ARM: dts: omap3-n900:: Mux RX51_LCD_RESET_GPIO in DTS

Add RX51_LCD_RESET_GPIO pin mux information to
display.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-n900.dts | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index 999a80c7a4c9..5afbd2872e2f 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -124,6 +124,12 @@
 			0x11e (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_dat3 */
 		>;
 	};
+
+	display_pins: pinmux_display_pins {
+		pinctrl-single,pins = <
+			0x0d4 (PIN_OUTPUT | MUX_MODE4)		/* RX51_LCD_RESET_GPIO */
+		>;
+	};
 };
 
 &i2c1 {
@@ -361,6 +367,9 @@
 		compatible = "acx565akm";
 		spi-max-frequency = <6000000>;
 		reg = <2>;
+
+		pinctrl-names = "default";
+		pinctrl-0 = <&display_pins>;
 	};
 };
 
-- 
cgit 


From 14e3e295b2b97724e0a9cb3b1ae7e693472769f8 Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@debian.org>
Date: Wed, 23 Oct 2013 00:49:41 +0200
Subject: ARM: dts: omap3-n900: Add TLV320AIC3X support

This patch adds support for Nokia N900 TLV320AIC3X chips.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-n900.dts | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index 5afbd2872e2f..98797e521c58 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -250,6 +250,32 @@
 
 	clock-frequency = <100000>;
 
+	tlv320aic3x: tlv320aic3x@18 {
+		compatible = "ti,tlv320aic3x";
+		reg = <0x18>;
+		gpio-reset = <&gpio2 28 GPIO_ACTIVE_HIGH>; /* 60 */
+		ai3x-gpio-func = <
+			0 /* AIC3X_GPIO1_FUNC_DISABLED */
+			5 /* AIC3X_GPIO2_FUNC_DIGITAL_MIC_INPUT */
+		>;
+
+		AVDD-supply = <&vmmc2>;
+		DRVDD-supply = <&vmmc2>;
+		IOVDD-supply = <&vio>;
+		DVDD-supply = <&vio>;
+	};
+
+	tlv320aic3x_aux: tlv320aic3x@19 {
+		compatible = "ti,tlv320aic3x";
+		reg = <0x19>;
+		gpio-reset = <&gpio2 28 GPIO_ACTIVE_HIGH>; /* 60 */
+
+		AVDD-supply = <&vmmc2>;
+		DRVDD-supply = <&vmmc2>;
+		IOVDD-supply = <&vio>;
+		DVDD-supply = <&vio>;
+	};
+
 	bq27200: bq27200@55 {
 		compatible = "ti,bq27200";
 		reg = <0x55>;
-- 
cgit 


From a0bf1f3e455e629d1d453e69e7a8c9ca72871c84 Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@debian.org>
Date: Wed, 23 Oct 2013 00:49:42 +0200
Subject: ARM: dts: omap3-n900: Add LP5523 support

Add support for LP5523 device.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap3-n900.dts | 61 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index 98797e521c58..c4f20bfe4cce 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -276,6 +276,67 @@
 		DVDD-supply = <&vio>;
 	};
 
+	lp5523: lp5523@32 {
+		compatible = "national,lp5523";
+		reg = <0x32>;
+		clock-mode = /bits/ 8 <0>; /* LP55XX_CLOCK_AUTO */
+		enable-gpio = <&gpio2 9 GPIO_ACTIVE_HIGH>; /* 41 */
+
+		chan0 {
+			chan-name = "lp5523:kb1";
+			led-cur = /bits/ 8 <50>;
+			max-cur = /bits/ 8 <100>;
+		};
+
+		chan1 {
+			chan-name = "lp5523:kb2";
+			led-cur = /bits/ 8 <50>;
+			max-cur = /bits/ 8 <100>;
+		};
+
+		chan2 {
+			chan-name = "lp5523:kb3";
+			led-cur = /bits/ 8 <50>;
+			max-cur = /bits/ 8 <100>;
+		};
+
+		chan3 {
+			chan-name = "lp5523:kb4";
+			led-cur = /bits/ 8 <50>;
+			max-cur = /bits/ 8 <100>;
+		};
+
+		chan4 {
+			chan-name = "lp5523:b";
+			led-cur = /bits/ 8 <50>;
+			max-cur = /bits/ 8 <100>;
+		};
+
+		chan5 {
+			chan-name = "lp5523:g";
+			led-cur = /bits/ 8 <50>;
+			max-cur = /bits/ 8 <100>;
+		};
+
+		chan6 {
+			chan-name = "lp5523:r";
+			led-cur = /bits/ 8 <50>;
+			max-cur = /bits/ 8 <100>;
+		};
+
+		chan7 {
+			chan-name = "lp5523:kb5";
+			led-cur = /bits/ 8 <50>;
+			max-cur = /bits/ 8 <100>;
+		};
+
+		chan8 {
+			chan-name = "lp5523:kb6";
+			led-cur = /bits/ 8 <50>;
+			max-cur = /bits/ 8 <100>;
+		};
+	};
+
 	bq27200: bq27200@55 {
 		compatible = "ti,bq27200";
 		reg = <0x55>;
-- 
cgit 


From a3317d4f2fcd064071bc188cbbc2769dda73e487 Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@debian.org>
Date: Wed, 23 Oct 2013 00:49:43 +0200
Subject: ARM: dts: TWL4030: Add power button support

Enable support for the power button.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/twl4030.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/twl4030.dtsi b/arch/arm/boot/dts/twl4030.dtsi
index cb5afcdb5d35..af7fa40fd216 100644
--- a/arch/arm/boot/dts/twl4030.dtsi
+++ b/arch/arm/boot/dts/twl4030.dtsi
@@ -133,4 +133,9 @@
 		compatible = "ti,twl4030-pwmled";
 		#pwm-cells = <2>;
 	};
+
+	twl_pwrbutton: pwrbutton {
+		compatible = "ti,twl4030-pwrbutton";
+		interrupts = <8>;
+	};
 };
-- 
cgit 


From 86467ff2ddca94c0d8d10b92b5916e68c0cad8a9 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 21 Oct 2013 10:55:29 +0800
Subject: pinctrl: tb10x: fix the error handling in tb10x_pinctrl_probe()

This patch fix the error handling in tb10x_pinctrl_probe():
 - devm_ioremap_resource() return ERR_PTR() and never return NULL
 - remove the dev_err call to avoid redundant error message
 - pinctrl_register() returns NULL not ERR_PTR()

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-tb10x.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-tb10x.c b/drivers/pinctrl/pinctrl-tb10x.c
index 2e1ea568c9a2..9f7fa9b6ea80 100644
--- a/drivers/pinctrl/pinctrl-tb10x.c
+++ b/drivers/pinctrl/pinctrl-tb10x.c
@@ -806,9 +806,8 @@ static int tb10x_pinctrl_probe(struct platform_device *pdev)
 	mutex_init(&state->mutex);
 
 	state->base = devm_ioremap_resource(dev, mem);
-	if (!state->base) {
-		dev_err(dev, "Request register region failed.\n");
-		ret = -EBUSY;
+	if (IS_ERR(state->base)) {
+		ret = PTR_ERR(state->base);
 		goto fail;
 	}
 
@@ -830,9 +829,9 @@ static int tb10x_pinctrl_probe(struct platform_device *pdev)
 	}
 
 	state->pctl = pinctrl_register(&tb10x_pindesc, dev, state);
-	if (IS_ERR(state->pctl)) {
+	if (!state->pctl) {
 		dev_err(dev, "could not register TB10x pin driver\n");
-		ret = PTR_ERR(state->pctl);
+		ret = -EINVAL;
 		goto fail;
 	}
 
-- 
cgit 


From 7ddd183738fc39cbe3fbfa1954082d4189f14a5c Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 23 Oct 2013 10:46:00 +0200
Subject: pinctrl: tb10x: use module_platform_driver to simplify the code

module_platform_driver() makes the code simpler by eliminating
boilerplate code.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-tb10x.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-tb10x.c b/drivers/pinctrl/pinctrl-tb10x.c
index 9f7fa9b6ea80..c5e0f6973a3b 100644
--- a/drivers/pinctrl/pinctrl-tb10x.c
+++ b/drivers/pinctrl/pinctrl-tb10x.c
@@ -869,17 +869,7 @@ static struct platform_driver tb10x_pinctrl_pdrv = {
 	}
 };
 
-static int __init tb10x_iopinctrl_init(void)
-{
-	return platform_driver_register(&tb10x_pinctrl_pdrv);
-}
-
-static void __exit tb10x_iopinctrl_exit(void)
-{
-	platform_driver_unregister(&tb10x_pinctrl_pdrv);
-}
+module_platform_driver(tb10x_pinctrl_pdrv);
 
 MODULE_AUTHOR("Christian Ruppert <christian.ruppert@abilis.com>");
 MODULE_LICENSE("GPL");
-module_init(tb10x_iopinctrl_init);
-module_exit(tb10x_iopinctrl_exit);
-- 
cgit 


From f2e9394d1a3bc7a4f646345d93468c8aa1f7d2ee Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 21 Oct 2013 14:47:14 +0530
Subject: pinctrl: mvebu: remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/mvebu/pinctrl-armada-370.c | 2 +-
 drivers/pinctrl/mvebu/pinctrl-armada-xp.c  | 2 +-
 drivers/pinctrl/mvebu/pinctrl-dove.c       | 2 +-
 drivers/pinctrl/mvebu/pinctrl-kirkwood.c   | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-370.c b/drivers/pinctrl/mvebu/pinctrl-armada-370.c
index 48e21a229483..ae1f760cbdd2 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-370.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-370.c
@@ -408,7 +408,7 @@ static struct platform_driver armada_370_pinctrl_driver = {
 	.driver = {
 		.name = "armada-370-pinctrl",
 		.owner = THIS_MODULE,
-		.of_match_table = of_match_ptr(armada_370_pinctrl_of_match),
+		.of_match_table = armada_370_pinctrl_of_match,
 	},
 	.probe = armada_370_pinctrl_probe,
 	.remove = armada_370_pinctrl_remove,
diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-xp.c b/drivers/pinctrl/mvebu/pinctrl-armada-xp.c
index ab5dc04b3e8a..843a51f9d129 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-xp.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-xp.c
@@ -455,7 +455,7 @@ static struct platform_driver armada_xp_pinctrl_driver = {
 	.driver = {
 		.name = "armada-xp-pinctrl",
 		.owner = THIS_MODULE,
-		.of_match_table = of_match_ptr(armada_xp_pinctrl_of_match),
+		.of_match_table = armada_xp_pinctrl_of_match,
 	},
 	.probe = armada_xp_pinctrl_probe,
 	.remove = armada_xp_pinctrl_remove,
diff --git a/drivers/pinctrl/mvebu/pinctrl-dove.c b/drivers/pinctrl/mvebu/pinctrl-dove.c
index 360b9b236b34..47268393af34 100644
--- a/drivers/pinctrl/mvebu/pinctrl-dove.c
+++ b/drivers/pinctrl/mvebu/pinctrl-dove.c
@@ -806,7 +806,7 @@ static struct platform_driver dove_pinctrl_driver = {
 	.driver = {
 		.name = "dove-pinctrl",
 		.owner = THIS_MODULE,
-		.of_match_table = of_match_ptr(dove_pinctrl_of_match),
+		.of_match_table = dove_pinctrl_of_match,
 	},
 	.probe = dove_pinctrl_probe,
 	.remove = dove_pinctrl_remove,
diff --git a/drivers/pinctrl/mvebu/pinctrl-kirkwood.c b/drivers/pinctrl/mvebu/pinctrl-kirkwood.c
index cdd483df673e..6b504b5935a5 100644
--- a/drivers/pinctrl/mvebu/pinctrl-kirkwood.c
+++ b/drivers/pinctrl/mvebu/pinctrl-kirkwood.c
@@ -471,7 +471,7 @@ static struct platform_driver kirkwood_pinctrl_driver = {
 	.driver = {
 		.name = "kirkwood-pinctrl",
 		.owner = THIS_MODULE,
-		.of_match_table = of_match_ptr(kirkwood_pinctrl_of_match),
+		.of_match_table = kirkwood_pinctrl_of_match,
 	},
 	.probe = kirkwood_pinctrl_probe,
 	.remove = kirkwood_pinctrl_remove,
-- 
cgit 


From 9e556dcc55774c9a1032f32baa0e5cfafede8b70 Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Wed, 23 Oct 2013 16:31:50 +0800
Subject: spi: spi-imx: only enable the clocks when we start to transfer a
 message

Current code keeps the clocks enabled all the time, it wastes the power
when there is no operaiton on the spi controller.

In order to save the power, this patch adds the two hooks:
   spi_imx_prepare_message: enable the clocks for this message
   spi_imx_unprepare_message: disable the clocks.

This patch also disables the clocks in the end of the probe.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-imx.c | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index 15323d8bd9cf..cc9defe7a7f2 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -749,6 +749,35 @@ static void spi_imx_cleanup(struct spi_device *spi)
 {
 }
 
+static int
+spi_imx_prepare_message(struct spi_master *master, struct spi_message *msg)
+{
+	struct spi_imx_data *spi_imx = spi_master_get_devdata(master);
+	int ret;
+
+	ret = clk_enable(spi_imx->clk_per);
+	if (ret)
+		return ret;
+
+	ret = clk_enable(spi_imx->clk_ipg);
+	if (ret) {
+		clk_disable(spi_imx->clk_per);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int
+spi_imx_unprepare_message(struct spi_master *master, struct spi_message *msg)
+{
+	struct spi_imx_data *spi_imx = spi_master_get_devdata(master);
+
+	clk_disable(spi_imx->clk_ipg);
+	clk_disable(spi_imx->clk_per);
+	return 0;
+}
+
 static int spi_imx_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
@@ -810,6 +839,8 @@ static int spi_imx_probe(struct platform_device *pdev)
 	spi_imx->bitbang.txrx_bufs = spi_imx_transfer;
 	spi_imx->bitbang.master->setup = spi_imx_setup;
 	spi_imx->bitbang.master->cleanup = spi_imx_cleanup;
+	spi_imx->bitbang.master->prepare_message = spi_imx_prepare_message;
+	spi_imx->bitbang.master->unprepare_message = spi_imx_unprepare_message;
 	spi_imx->bitbang.master->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;
 
 	init_completion(&spi_imx->xfer_done);
@@ -872,6 +903,8 @@ static int spi_imx_probe(struct platform_device *pdev)
 
 	dev_info(&pdev->dev, "probed\n");
 
+	clk_disable(spi_imx->clk_ipg);
+	clk_disable(spi_imx->clk_per);
 	return ret;
 
 out_clk_put:
-- 
cgit 


From 61e310a1edf6f325939245c05d3e9b662c70a43d Mon Sep 17 00:00:00 2001
From: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Date: Wed, 16 Oct 2013 16:12:33 +0200
Subject: pinctrl: at91: correct a few typos

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-at91.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index 0c8bf9318aed..c4598dcf333c 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -243,7 +243,7 @@ static int at91_dt_node_to_map(struct pinctrl_dev *pctldev,
 	int i;
 
 	/*
-	 * first find the group of this node and check if we need create
+	 * first find the group of this node and check if we need to create
 	 * config maps for pins
 	 */
 	grp = at91_pinctrl_find_group_by_name(info, np->name);
@@ -572,7 +572,7 @@ static int at91_pmx_enable(struct pinctrl_dev *pctldev, unsigned selector,
 		info->functions[selector].name, info->groups[group].name);
 
 	/* first check that all the pins of the group are valid with a valid
-	 * paramter */
+	 * parameter */
 	for (i = 0; i < npins; i++) {
 		pin = &pins_conf[i];
 		ret = pin_check_config(info, info->groups[group].name, i, pin);
@@ -966,7 +966,7 @@ static int at91_pinctrl_probe_dt(struct platform_device *pdev,
 	at91_pinctrl_child_count(info, np);
 
 	if (info->nbanks < 1) {
-		dev_err(&pdev->dev, "you need to specify atleast one gpio-controller\n");
+		dev_err(&pdev->dev, "you need to specify at least one gpio-controller\n");
 		return -EINVAL;
 	}
 
@@ -1503,7 +1503,7 @@ static int at91_gpio_of_irq_setup(struct device_node *node,
 	if (at91_gpio->pioc_idx)
 		prev = gpio_chips[at91_gpio->pioc_idx - 1];
 
-	/* The toplevel handler handles one bank of GPIOs, except
+	/* The top level handler handles one bank of GPIOs, except
 	 * on some SoC it can handles up to three...
 	 * We only set up the handler for the first of the list.
 	 */
-- 
cgit 


From f2020b27be94222eb25c39ff46eb9917cb92897b Mon Sep 17 00:00:00 2001
From: Stanislav Fomichev <stfomichev@yandex-team.ru>
Date: Tue, 22 Oct 2013 16:43:23 +0400
Subject: netfilter: ip6t_REJECT: skip checksum verification for outgoing ipv6
 packets

Don't verify checksum for outgoing packets because checksum calculation
may be done by the device.

Without this patch:
$ ip6tables -I OUTPUT -p tcp --dport 80 -j REJECT --reject-with tcp-reset
$ time telnet ipv6.google.com 80
Trying 2a00:1450:4010:c03::67...
telnet: Unable to connect to remote host: Connection timed out

real    0m7.201s
user    0m0.000s
sys     0m0.000s

With the patch applied:
$ ip6tables -I OUTPUT -p tcp --dport 80 -j REJECT --reject-with tcp-reset
$ time telnet ipv6.google.com 80
Trying 2a00:1450:4010:c03::67...
telnet: Unable to connect to remote host: Connection refused

real    0m0.085s
user    0m0.000s
sys     0m0.000s

Signed-off-by: Stanislav Fomichev <stfomichev@yandex-team.ru>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/ipv6/netfilter/ip6t_REJECT.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c
index 56eef30ee5f6..da00a2ecde55 100644
--- a/net/ipv6/netfilter/ip6t_REJECT.c
+++ b/net/ipv6/netfilter/ip6t_REJECT.c
@@ -39,7 +39,7 @@ MODULE_DESCRIPTION("Xtables: packet \"rejection\" target for IPv6");
 MODULE_LICENSE("GPL");
 
 /* Send RST reply */
-static void send_reset(struct net *net, struct sk_buff *oldskb)
+static void send_reset(struct net *net, struct sk_buff *oldskb, int hook)
 {
 	struct sk_buff *nskb;
 	struct tcphdr otcph, *tcph;
@@ -88,8 +88,7 @@ static void send_reset(struct net *net, struct sk_buff *oldskb)
 	}
 
 	/* Check checksum. */
-	if (csum_ipv6_magic(&oip6h->saddr, &oip6h->daddr, otcplen, IPPROTO_TCP,
-			    skb_checksum(oldskb, tcphoff, otcplen, 0))) {
+	if (nf_ip6_checksum(oldskb, hook, tcphoff, IPPROTO_TCP)) {
 		pr_debug("TCP checksum is invalid\n");
 		return;
 	}
@@ -227,7 +226,7 @@ reject_tg6(struct sk_buff *skb, const struct xt_action_param *par)
 		/* Do nothing */
 		break;
 	case IP6T_TCP_RESET:
-		send_reset(net, skb);
+		send_reset(net, skb, par->hooknum);
 		break;
 	default:
 		net_info_ratelimited("case %u not handled yet\n", reject->with);
-- 
cgit 


From 543c954d6807ad0682c37846b7b9c423cd941415 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 21 Oct 2013 11:12:02 +0800
Subject: spi: atmel: fix return value check in atmel_spi_probe()

In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should be
replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-atmel.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-atmel.c b/drivers/spi/spi-atmel.c
index 118a938776bd..273db0beb2b8 100644
--- a/drivers/spi/spi-atmel.c
+++ b/drivers/spi/spi-atmel.c
@@ -1547,8 +1547,10 @@ static int atmel_spi_probe(struct platform_device *pdev)
 
 	as->pdev = pdev;
 	as->regs = devm_ioremap_resource(&pdev->dev, regs);
-	if (!as->regs)
+	if (IS_ERR(as->regs)) {
+		ret = PTR_ERR(as->regs);
 		goto out_free_buffer;
+	}
 	as->phybase = regs->start;
 	as->irq = irq;
 	as->clk = clk;
-- 
cgit 


From 472e623db8d7ddc7fe15c44f1bba8f7772aede50 Mon Sep 17 00:00:00 2001
From: Peter Ujfalusi <peter.ujfalusi@ti.com>
Date: Wed, 23 Oct 2013 12:32:19 +0300
Subject: ARM: dts: omap5-uevm: Correct twl6040 reset GPIO pinmux

When the omap5-evm.dts file has been renamed to omap5-uevm.dts and the sEVM
support got deprecated in favor of uEVM (or Panda5) the content was not
validated.
On uEVM the twl6040 reset GPIO is from gpio5_141 and not via gpio5_145, which
was the case in sEVM.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap5-uevm.dts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts
index 22d9b51dbd16..4d79c7b0cb4e 100644
--- a/arch/arm/boot/dts/omap5-uevm.dts
+++ b/arch/arm/boot/dts/omap5-uevm.dts
@@ -71,7 +71,7 @@
 
 	twl6040_pins: pinmux_twl6040_pins {
 		pinctrl-single,pins = <
-			0x18a (PIN_OUTPUT | MUX_MODE6)	/* perslimbus2_clock.gpio5_145 */
+			0x17e (PIN_OUTPUT | MUX_MODE6)	/* mcspi1_somi.gpio5_141 */
 		>;
 	};
 
-- 
cgit 


From b306e7b819edd0515e18f5ca7e0d1cb4b0e4e58a Mon Sep 17 00:00:00 2001
From: Peter Ujfalusi <peter.ujfalusi@ti.com>
Date: Wed, 23 Oct 2013 12:32:20 +0300
Subject: ARM: dts: omap5-uevm: Remove pinmux for dmic pins

When the omap5-evm.dts file has been renamed to omap5-uevm.dts and the sEVM
support got deprecated in favor of uEVM (or Panda5) the content was not
validated.
Panda5 does not have support for digital microphones so remove the pinmux
section for it.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Benoit Cousson <bcousson@baylibre.com>
---
 arch/arm/boot/dts/omap5-uevm.dts | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/arch/arm/boot/dts/omap5-uevm.dts b/arch/arm/boot/dts/omap5-uevm.dts
index 4d79c7b0cb4e..002fa70180a5 100644
--- a/arch/arm/boot/dts/omap5-uevm.dts
+++ b/arch/arm/boot/dts/omap5-uevm.dts
@@ -62,7 +62,6 @@
 	pinctrl-0 = <
 			&twl6040_pins
 			&mcpdm_pins
-			&dmic_pins
 			&mcbsp1_pins
 			&mcbsp2_pins
 			&usbhost_pins
@@ -85,15 +84,6 @@
 		>;
 	};
 
-	dmic_pins: pinmux_dmic_pins {
-		pinctrl-single,pins = <
-			0x144 (PIN_INPUT | MUX_MODE0)		/* abedmic_din1.abedmic_din1 */
-			0x146 (PIN_INPUT | MUX_MODE0)		/* abedmic_din2.abedmic_din2 */
-			0x148 (PIN_INPUT | MUX_MODE0)		/* abedmic_din3.abedmic_din3 */
-			0x14a (PIN_OUTPUT | MUX_MODE0)		/* abedmic_clk1.abedmic_clk1 */
-		>;
-	};
-
 	mcbsp1_pins: pinmux_mcbsp1_pins {
 		pinctrl-single,pins = <
 			0x14c (PIN_INPUT | MUX_MODE1)		/* abedmic_clk2.abemcbsp1_fsx */
-- 
cgit 


From f63834e6c6145fb7667ef0c645cbc52313e71c69 Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Fri, 18 Oct 2013 20:02:29 -0300
Subject: ARM: mvebu: Add Core Divider clock device-tree binding

The Armada 370/XP SoCs have a Core Divider clock providing
several clocks. For now, only the NAND clock is supported.

Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 .../devicetree/bindings/clock/mvebu-corediv-clock.txt | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/mvebu-corediv-clock.txt

diff --git a/Documentation/devicetree/bindings/clock/mvebu-corediv-clock.txt b/Documentation/devicetree/bindings/clock/mvebu-corediv-clock.txt
new file mode 100644
index 000000000000..c62391fc0e39
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/mvebu-corediv-clock.txt
@@ -0,0 +1,19 @@
+* Core Divider Clock bindings for Marvell MVEBU SoCs
+
+The following is a list of provided IDs and clock names on Armada 370/XP:
+ 0 = nand (NAND clock)
+
+Required properties:
+- compatible : must be "marvell,armada-370-corediv-clock"
+- reg : must be the register address of Core Divider control register
+- #clock-cells : from common clock binding; shall be set to 1
+- clocks : must be set to the parent's phandle
+
+Example:
+
+corediv_clk: corediv-clocks@18740 {
+	compatible = "marvell,armada-370-corediv-clock";
+	reg = <0x18740 0xc>;
+	#clock-cells = <1>;
+	clocks = <&pll>;
+};
-- 
cgit 


From 4675cf577e4bbe179df1cf10a6fab8854333d99d Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Fri, 18 Oct 2013 20:02:30 -0300
Subject: ARM: mvebu: Add a 2 GHz fixed-clock Armada 370/XP

Armada 370/XP SoCs have a 2 GHz fixed PLL that is used to feed
other clocks. This commit adds a DT representation of this clock
through a fixed-clock compatible node.

Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/armada-370-xp.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/boot/dts/armada-370-xp.dtsi b/arch/arm/boot/dts/armada-370-xp.dtsi
index 534e1be80df2..13efe05a8c9f 100644
--- a/arch/arm/boot/dts/armada-370-xp.dtsi
+++ b/arch/arm/boot/dts/armada-370-xp.dtsi
@@ -251,4 +251,13 @@
 
 		};
 	};
+
+	clocks {
+		/* 2 GHz fixed main PLL */
+		mainpll: mainpll {
+			compatible = "fixed-clock";
+			#clock-cells = <0>;
+			clock-frequency = <2000000000>;
+		};
+	};
  };
-- 
cgit 


From f039dfb51b36a2d7e4ac25e65ffbd03e3ac77a0c Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Fri, 18 Oct 2013 20:02:31 -0300
Subject: ARM: mvebu: Add the core-divider clock to Armada 370/XP

The Armada 370/XP SoC has a clock provider called "Core Divider",
that is derived from a fixed 2 GHz PLL clock.

Reviewed-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/armada-370-xp.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm/boot/dts/armada-370-xp.dtsi b/arch/arm/boot/dts/armada-370-xp.dtsi
index 13efe05a8c9f..00d6a798c705 100644
--- a/arch/arm/boot/dts/armada-370-xp.dtsi
+++ b/arch/arm/boot/dts/armada-370-xp.dtsi
@@ -138,6 +138,14 @@
 				status = "disabled";
 			};
 
+			coredivclk: corediv-clock@18740 {
+				compatible = "marvell,armada-370-corediv-clock";
+				reg = <0x18740 0xc>;
+				#clock-cells = <1>;
+				clocks = <&mainpll>;
+				clock-output-names = "nand";
+			};
+
 			timer@20300 {
 				reg = <0x20300 0x30>, <0x21040 0x30>;
 				interrupts = <37>, <38>, <39>, <40>, <5>, <6>;
-- 
cgit 


From 62561b39ea346ec2e48e01de9fd6f38383b67bd3 Mon Sep 17 00:00:00 2001
From: Jyri Sarha <jsarha@ti.com>
Date: Fri, 18 Oct 2013 18:37:45 +0300
Subject: ASoC: davinci-mcasp: Improve DT bindings document

Makes interrupts property optional as the interrupts are not currently
used by the driver and adds interrupt-names property to name listed
interrupts. Currently know interrupt names are "tx" and "rx".

- Improve tdm-slots propery description

- Improve op-mode property description

- Add pinctrl-names and pinctrl-0 properties

- Remove #address-cells and #size-cells as they are not needed.

- Bracket named interrupts property tuples for uniformity.

- Add missing "for" to serial-dir prop in DT bindings doc.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 .../bindings/sound/davinci-mcasp-audio.txt         | 24 ++++++++++++++--------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
index 1945aecf0a3a..b925bf955731 100644
--- a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
+++ b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
@@ -11,13 +11,14 @@ Required properties:
          * "mpu" for the main registers (required). For compatibility with
            existing software, it is recommended this is the first entry.
          * "dat" for separate data port register access (optional).
-- interrupts : Interrupt number for McASP
-- op-mode : I2S/DIT ops mode.
-- tdm-slots : Slots for TDM operation.
+- op-mode : I2S/DIT ops mode. 0 for I2S mode. 1 for DIT mode used for S/PDIF,
+  	    IEC60958-1, and AES-3 formats.
+- tdm-slots : Slots for TDM operation. Indicates number of channels transmitted
+  	      or received over one serializer.
 - num-serializer : Serializers used by McASP.
-- serial-dir : A list of serializer pin mode. The list number should be equal
-		to "num-serializer" parameter. Each entry is a number indication
-		serializer pin direction. (0 - INACTIVE, 1 - TX, 2 - RX)
+- serial-dir : A list of serializer configuration. Each entry is a number
+               indication for serializer pin direction.
+               (0 - INACTIVE, 1 - TX, 2 - RX)
 - dmas: two element list of DMA controller phandles and DMA request line
         ordered pairs.
 - dma-names: identifier string for each DMA request line in the dmas property.
@@ -31,16 +32,21 @@ Optional properties:
 - rx-num-evt : FIFO levels.
 - sram-size-playback : size of sram to be allocated during playback
 - sram-size-capture  : size of sram to be allocated during capture
+- interrupts : Interrupt numbers for McASP, currently not used by the driver
+- interrupt-names : Known interrupt names are "tx" and "rx"
+- pinctrl-0: Should specify pin control group used for this controller.
+- pinctrl-names: Should contain only one value - "default", for more details
+  		 please refer to pinctrl-bindings.txt
+  
 
 Example:
 
 mcasp0: mcasp0@1d00000 {
 	compatible = "ti,da830-mcasp-audio";
-	#address-cells = <1>;
-	#size-cells = <0>;
 	reg = <0x100000 0x3000>;
 	reg-names "mpu";
-	interrupts = <82 83>;
+	interrupts = <82>, <83>;
+	interrupts-names = "tx", "rx";
 	op-mode = <0>;		/* MCASP_IIS_MODE */
 	tdm-slots = <2>;
 	num-serializer = <16>;
-- 
cgit 


From 1427e660b49e87cd842dba94158b0fc73030c17e Mon Sep 17 00:00:00 2001
From: Peter Ujfalusi <peter.ujfalusi@ti.com>
Date: Fri, 18 Oct 2013 18:37:46 +0300
Subject: ASoC: davinci-mcasp: Remove redundant num-serializer DT parameter

The serial-dir array gives this information so there is no need to have the
num-serializer property in DT description.
Just ignore the property in the driver the DTS files can be updated
separately without regression.
Update the documentation at the same time for davinci-mcasp

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 .../bindings/sound/davinci-mcasp-audio.txt         |  1 -
 sound/soc/davinci/davinci-mcasp.c                  | 22 +++++-----------------
 2 files changed, 5 insertions(+), 18 deletions(-)

diff --git a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
index b925bf955731..0aa416b68e3d 100644
--- a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
+++ b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
@@ -49,7 +49,6 @@ mcasp0: mcasp0@1d00000 {
 	interrupts-names = "tx", "rx";
 	op-mode = <0>;		/* MCASP_IIS_MODE */
 	tdm-slots = <2>;
-	num-serializer = <16>;
 	serial-dir = <
 			0 0 0 0	/* 0: INACTIVE, 1: TX, 2: RX */
 			0 0 0 0
diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index bbc9a0793eb9..71e14bb3a8cd 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -1050,7 +1050,6 @@ static struct snd_platform_data *davinci_mcasp_set_pdata_from_of(
 	struct of_phandle_args dma_spec;
 
 	const u32 *of_serial_dir32;
-	u8 *of_serial_dir;
 	u32 val;
 	int i, ret = 0;
 
@@ -1081,32 +1080,21 @@ static struct snd_platform_data *davinci_mcasp_set_pdata_from_of(
 		pdata->tdm_slots = val;
 	}
 
-	ret = of_property_read_u32(np, "num-serializer", &val);
-	if (ret >= 0)
-		pdata->num_serializer = val;
-
 	of_serial_dir32 = of_get_property(np, "serial-dir", &val);
 	val /= sizeof(u32);
-	if (val != pdata->num_serializer) {
-		dev_err(&pdev->dev,
-				"num-serializer(%d) != serial-dir size(%d)\n",
-				pdata->num_serializer, val);
-		ret = -EINVAL;
-		goto nodata;
-	}
-
 	if (of_serial_dir32) {
-		of_serial_dir = devm_kzalloc(&pdev->dev,
-						(sizeof(*of_serial_dir) * val),
-						GFP_KERNEL);
+		u8 *of_serial_dir = devm_kzalloc(&pdev->dev,
+						 (sizeof(*of_serial_dir) * val),
+						 GFP_KERNEL);
 		if (!of_serial_dir) {
 			ret = -ENOMEM;
 			goto nodata;
 		}
 
-		for (i = 0; i < pdata->num_serializer; i++)
+		for (i = 0; i < val; i++)
 			of_serial_dir[i] = be32_to_cpup(&of_serial_dir32[i]);
 
+		pdata->num_serializer = val;
 		pdata->serial_dir = of_serial_dir;
 	}
 
-- 
cgit 


From 7fcd427465e710d0c4e2737d2f02b2ffa14b9bb3 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Tue, 15 Oct 2013 20:14:21 +0100
Subject: mfd: Allow mapping regulator supplies to MFD device from children

Occasionally, it is useful to map supplies from a child device onto the
MFD device. A typical usecase for this would be if the MFD device is
represented as a single node in device tree. All supplies will be
defined in device tree as existing on the MFD device. When a child
depends on frameworks which might have no knowledge of MFD to lookup
supplies on its behalf the supply will not be found.

This patch adds a list of supplies that should be looked up on the
parent rather than the child as part of the mfd_cell structure.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/mfd/mfd-core.c   | 22 +++++++++++++++++-----
 include/linux/mfd/core.h |  6 ++++++
 2 files changed, 23 insertions(+), 5 deletions(-)

diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index f421586f29fb..adc8ea36e7c4 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -20,6 +20,7 @@
 #include <linux/module.h>
 #include <linux/irqdomain.h>
 #include <linux/of.h>
+#include <linux/regulator/consumer.h>
 
 static struct device_type mfd_dev_type = {
 	.name	= "mfd_device",
@@ -99,6 +100,13 @@ static int mfd_add_device(struct device *parent, int id,
 	pdev->dev.dma_mask = parent->dma_mask;
 	pdev->dev.dma_parms = parent->dma_parms;
 
+	ret = devm_regulator_bulk_register_supply_alias(
+			&pdev->dev, cell->parent_supplies,
+			parent, cell->parent_supplies,
+			cell->num_parent_supplies);
+	if (ret < 0)
+		goto fail_res;
+
 	if (parent->of_node && cell->of_compatible) {
 		for_each_child_of_node(parent->of_node, np) {
 			if (of_device_is_compatible(np, cell->of_compatible)) {
@@ -112,12 +120,12 @@ static int mfd_add_device(struct device *parent, int id,
 		ret = platform_device_add_data(pdev,
 					cell->platform_data, cell->pdata_size);
 		if (ret)
-			goto fail_res;
+			goto fail_alias;
 	}
 
 	ret = mfd_platform_add_cell(pdev, cell);
 	if (ret)
-		goto fail_res;
+		goto fail_alias;
 
 	for (r = 0; r < cell->num_resources; r++) {
 		res[r].name = cell->resources[r].name;
@@ -152,17 +160,17 @@ static int mfd_add_device(struct device *parent, int id,
 		if (!cell->ignore_resource_conflicts) {
 			ret = acpi_check_resource_conflict(&res[r]);
 			if (ret)
-				goto fail_res;
+				goto fail_alias;
 		}
 	}
 
 	ret = platform_device_add_resources(pdev, res, cell->num_resources);
 	if (ret)
-		goto fail_res;
+		goto fail_alias;
 
 	ret = platform_device_add(pdev);
 	if (ret)
-		goto fail_res;
+		goto fail_alias;
 
 	if (cell->pm_runtime_no_callbacks)
 		pm_runtime_no_callbacks(&pdev->dev);
@@ -171,6 +179,10 @@ static int mfd_add_device(struct device *parent, int id,
 
 	return 0;
 
+fail_alias:
+	devm_regulator_bulk_unregister_supply_alias(&pdev->dev,
+						    cell->parent_supplies,
+						    cell->num_parent_supplies);
 fail_res:
 	kfree(res);
 fail_device:
diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h
index cebe97ee98b8..7314fc4e6d25 100644
--- a/include/linux/mfd/core.h
+++ b/include/linux/mfd/core.h
@@ -59,6 +59,12 @@ struct mfd_cell {
 	 * pm_runtime_no_callbacks().
 	 */
 	bool			pm_runtime_no_callbacks;
+
+	/* A list of regulator supplies that should be mapped to the MFD
+	 * device rather than the child device when requested
+	 */
+	const char		**parent_supplies;
+	int			num_parent_supplies;
 };
 
 /*
-- 
cgit 


From 32dadef2190efd2e06331825b11881daf100d6d9 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Tue, 15 Oct 2013 20:14:22 +0100
Subject: mfd: arizona: Specify supply mappings for Arizona CODECs

The CODEC power supplies should be looked up on the Arizona device as
they will be created here by device tree also update the only user of
non-device tree bindings.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 arch/arm/mach-s3c64xx/mach-crag6410.c | 12 ------------
 drivers/mfd/arizona-core.c            | 32 +++++++++++++++++++++++++++++---
 2 files changed, 29 insertions(+), 15 deletions(-)

diff --git a/arch/arm/mach-s3c64xx/mach-crag6410.c b/arch/arm/mach-s3c64xx/mach-crag6410.c
index eb8e5a1aca42..f27ca3b89f4c 100644
--- a/arch/arm/mach-s3c64xx/mach-crag6410.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410.c
@@ -310,10 +310,6 @@ static struct regulator_consumer_supply wallvdd_consumers[] = {
 
 	REGULATOR_SUPPLY("SPKVDDL", "spi0.1"),
 	REGULATOR_SUPPLY("SPKVDDR", "spi0.1"),
-	REGULATOR_SUPPLY("SPKVDDL", "wm5102-codec"),
-	REGULATOR_SUPPLY("SPKVDDR", "wm5102-codec"),
-	REGULATOR_SUPPLY("SPKVDDL", "wm5110-codec"),
-	REGULATOR_SUPPLY("SPKVDDR", "wm5110-codec"),
 
 	REGULATOR_SUPPLY("DC1VDD", "0-0034"),
 	REGULATOR_SUPPLY("DC2VDD", "0-0034"),
@@ -653,14 +649,6 @@ static struct regulator_consumer_supply pvdd_1v8_consumers[] = {
 	REGULATOR_SUPPLY("DBVDD3", "spi0.1"),
 	REGULATOR_SUPPLY("LDOVDD", "spi0.1"),
 	REGULATOR_SUPPLY("CPVDD", "spi0.1"),
-
-	REGULATOR_SUPPLY("DBVDD2", "wm5102-codec"),
-	REGULATOR_SUPPLY("DBVDD3", "wm5102-codec"),
-	REGULATOR_SUPPLY("CPVDD", "wm5102-codec"),
-
-	REGULATOR_SUPPLY("DBVDD2", "wm5110-codec"),
-	REGULATOR_SUPPLY("DBVDD3", "wm5110-codec"),
-	REGULATOR_SUPPLY("CPVDD", "wm5110-codec"),
 };
 
 static struct regulator_init_data pvdd_1v8 = {
diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 5ac3aa48473b..022b1863d36c 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -569,13 +569,25 @@ static struct mfd_cell early_devs[] = {
 	{ .name = "arizona-ldo1" },
 };
 
+static const char *wm5102_supplies[] = {
+	"DBVDD2",
+	"DBVDD3",
+	"CPVDD",
+	"SPKVDDL",
+	"SPKVDDR",
+};
+
 static struct mfd_cell wm5102_devs[] = {
 	{ .name = "arizona-micsupp" },
 	{ .name = "arizona-extcon" },
 	{ .name = "arizona-gpio" },
 	{ .name = "arizona-haptics" },
 	{ .name = "arizona-pwm" },
-	{ .name = "wm5102-codec" },
+	{
+		.name = "wm5102-codec",
+		.parent_supplies = wm5102_supplies,
+		.num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
+	},
 };
 
 static struct mfd_cell wm5110_devs[] = {
@@ -584,7 +596,17 @@ static struct mfd_cell wm5110_devs[] = {
 	{ .name = "arizona-gpio" },
 	{ .name = "arizona-haptics" },
 	{ .name = "arizona-pwm" },
-	{ .name = "wm5110-codec" },
+	{
+		.name = "wm5110-codec",
+		.parent_supplies = wm5102_supplies,
+		.num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
+	},
+};
+
+static const char *wm8997_supplies[] = {
+	"DBVDD2",
+	"CPVDD",
+	"SPKVDD",
 };
 
 static struct mfd_cell wm8997_devs[] = {
@@ -593,7 +615,11 @@ static struct mfd_cell wm8997_devs[] = {
 	{ .name = "arizona-gpio" },
 	{ .name = "arizona-haptics" },
 	{ .name = "arizona-pwm" },
-	{ .name = "wm8997-codec" },
+	{
+		.name = "wm8997-codec",
+		.parent_supplies = wm8997_supplies,
+		.num_parent_supplies = ARRAY_SIZE(wm8997_supplies),
+	},
 };
 
 int arizona_dev_init(struct arizona *arizona)
-- 
cgit 


From 955c1cab809edfb5429603c68493363074ac20cf Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Wed, 23 Oct 2013 09:40:02 +0100
Subject: powerpc: Don't corrupt user registers on 32-bit

Commit de79f7b9f6 ("powerpc: Put FP/VSX and VR state into structures")
modified load_up_fpu() and load_up_altivec() in such a way that they
now use r7 and r8.  Unfortunately, the callers of these functions on
32-bit machines then return to userspace via fast_exception_return,
which doesn't restore all of the volatile GPRs, but only r1, r3 -- r6
and r9 -- r12.  This was causing userspace segfaults and other
userspace misbehaviour on 32-bit machines.

This fixes the problem by changing the register usage of load_up_fpu()
and load_up_altivec() to avoid using r7 and r8 and instead use r6 and
r10.  This also adds comments to those functions saying which registers
may be used.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Tested-by: Scott Wood <scottwood@freescale.com> (on e500mc, so no altivec)
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/fpu.S    | 14 ++++++++------
 arch/powerpc/kernel/vector.S | 15 +++++++++------
 2 files changed, 17 insertions(+), 12 deletions(-)

diff --git a/arch/powerpc/kernel/fpu.S b/arch/powerpc/kernel/fpu.S
index 4dca05e91e95..f7f5b8bed68f 100644
--- a/arch/powerpc/kernel/fpu.S
+++ b/arch/powerpc/kernel/fpu.S
@@ -106,6 +106,8 @@ _GLOBAL(store_fp_state)
  * and save its floating-point registers in its thread_struct.
  * Load up this task's FP registers from its thread_struct,
  * enable the FPU for the current task and return to the task.
+ * Note that on 32-bit this can only use registers that will be
+ * restored by fast_exception_return, i.e. r3 - r6, r10 and r11.
  */
 _GLOBAL(load_up_fpu)
 	mfmsr	r5
@@ -131,10 +133,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX)
 	beq	1f
 	toreal(r4)
 	addi	r4,r4,THREAD		/* want last_task_used_math->thread */
-	addi	r8,r4,THREAD_FPSTATE
-	SAVE_32FPVSRS(0, R5, R8)
+	addi	r10,r4,THREAD_FPSTATE
+	SAVE_32FPVSRS(0, R5, R10)
 	mffs	fr0
-	stfd	fr0,FPSTATE_FPSCR(r8)
+	stfd	fr0,FPSTATE_FPSCR(r10)
 	PPC_LL	r5,PT_REGS(r4)
 	toreal(r5)
 	PPC_LL	r4,_MSR-STACK_FRAME_OVERHEAD(r5)
@@ -157,10 +159,10 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX)
 	or	r12,r12,r4
 	std	r12,_MSR(r1)
 #endif
-	addi	r7,r5,THREAD_FPSTATE
-	lfd	fr0,FPSTATE_FPSCR(r7)
+	addi	r10,r5,THREAD_FPSTATE
+	lfd	fr0,FPSTATE_FPSCR(r10)
 	MTFSF_L(fr0)
-	REST_32FPVSRS(0, R4, R7)
+	REST_32FPVSRS(0, R4, R10)
 #ifndef CONFIG_SMP
 	subi	r4,r5,THREAD
 	fromreal(r4)
diff --git a/arch/powerpc/kernel/vector.S b/arch/powerpc/kernel/vector.S
index eacda4eea2d7..0458a9aaba9d 100644
--- a/arch/powerpc/kernel/vector.S
+++ b/arch/powerpc/kernel/vector.S
@@ -64,6 +64,9 @@ _GLOBAL(store_vr_state)
  * Enables the VMX for use in the kernel on return.
  * On SMP we know the VMX is free, since we give it up every
  * switch (ie, no lazy save of the vector registers).
+ *
+ * Note that on 32-bit this can only use registers that will be
+ * restored by fast_exception_return, i.e. r3 - r6, r10 and r11.
  */
 _GLOBAL(load_up_altivec)
 	mfmsr	r5			/* grab the current MSR */
@@ -89,11 +92,11 @@ _GLOBAL(load_up_altivec)
 	/* Save VMX state to last_task_used_altivec's THREAD struct */
 	toreal(r4)
 	addi	r4,r4,THREAD
-	addi	r7,r4,THREAD_VRSTATE
-	SAVE_32VRS(0,r5,r7)
+	addi	r6,r4,THREAD_VRSTATE
+	SAVE_32VRS(0,r5,r6)
 	mfvscr	vr0
 	li	r10,VRSTATE_VSCR
-	stvx	vr0,r10,r7
+	stvx	vr0,r10,r6
 	/* Disable VMX for last_task_used_altivec */
 	PPC_LL	r5,PT_REGS(r4)
 	toreal(r5)
@@ -125,13 +128,13 @@ _GLOBAL(load_up_altivec)
 	oris	r12,r12,MSR_VEC@h
 	std	r12,_MSR(r1)
 #endif
-	addi	r7,r5,THREAD_VRSTATE
+	addi	r6,r5,THREAD_VRSTATE
 	li	r4,1
 	li	r10,VRSTATE_VSCR
 	stw	r4,THREAD_USED_VR(r5)
-	lvx	vr0,r10,r7
+	lvx	vr0,r10,r6
 	mtvscr	vr0
-	REST_32VRS(0,r4,r7)
+	REST_32VRS(0,r4,r6)
 #ifndef CONFIG_SMP
 	/* Update last_task_used_altivec to 'current' */
 	subi	r4,r5,THREAD		/* Back to 'current' */
-- 
cgit 


From d7711dc5930ced241c4f6e9b14df2a92814f9f12 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 19 Oct 2013 14:13:04 +0100
Subject: ASoC: ep93xx: Open code dma channel request

Currently the ep93xx DMA code is one of the few users relying on the fact
that the compat code uses the dma_data as the filter data for non-DT
channel requests. Since the rest of the core expects this to be a struct
snd_dmaengine_dai_data this isn't terribly helpful this will be changed to
use the already existing filter data so avoid breaking ep93xx by open
coding the current behaviour.

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
---
 sound/soc/cirrus/ep93xx-pcm.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/sound/soc/cirrus/ep93xx-pcm.c b/sound/soc/cirrus/ep93xx-pcm.c
index 0e9f56e0d4b2..cfe517e68009 100644
--- a/sound/soc/cirrus/ep93xx-pcm.c
+++ b/sound/soc/cirrus/ep93xx-pcm.c
@@ -57,9 +57,22 @@ static bool ep93xx_pcm_dma_filter(struct dma_chan *chan, void *filter_param)
 	return false;
 }
 
+static struct dma_chan *ep93xx_compat_request_channel(
+	struct snd_soc_pcm_runtime *rtd,
+	struct snd_pcm_substream *substream)
+{
+	struct snd_dmaengine_dai_dma_data *dma_data;
+
+	dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
+
+	return snd_dmaengine_pcm_request_channel(ep93xx_pcm_dma_filter,
+						 dma_data);
+}
+
 static const struct snd_dmaengine_pcm_config ep93xx_dmaengine_pcm_config = {
 	.pcm_hardware = &ep93xx_pcm_hardware,
 	.compat_filter_fn = ep93xx_pcm_dma_filter,
+	.compat_request_channel = ep93xx_compat_request_channel,
 	.prealloc_buffer_size = 131072,
 };
 
-- 
cgit 


From 0eef5381b7271702c7e65c637cb46804c482a90a Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 19 Oct 2013 14:17:03 +0100
Subject: ASoC: tegra: Remove redundant initialisation of compat_filter_fn

Setting a field in a static struct to NULL has no effect so don't bother
(and don't generate false positives for grep).

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
---
 sound/soc/tegra/tegra_pcm.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sound/soc/tegra/tegra_pcm.c b/sound/soc/tegra/tegra_pcm.c
index f056f632557c..7b2d23ba69b3 100644
--- a/sound/soc/tegra/tegra_pcm.c
+++ b/sound/soc/tegra/tegra_pcm.c
@@ -56,7 +56,6 @@ static const struct snd_pcm_hardware tegra_pcm_hardware = {
 static const struct snd_dmaengine_pcm_config tegra_dmaengine_pcm_config = {
 	.pcm_hardware = &tegra_pcm_hardware,
 	.prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config,
-	.compat_filter_fn = NULL,
 	.prealloc_buffer_size = PAGE_SIZE * 8,
 };
 
-- 
cgit 


From 92ec11809565cf6429c75204e99e0f583b5c9d7c Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Wed, 23 Oct 2013 13:40:55 +0200
Subject: sched/wait: Fix build breakage

The wait_event_interruptible_lock_irq() macro is missing a
semi-colon which causes a build failure in the i915 DRM driver.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1382528455-29911-1-git-send-email-treding@nvidia.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/wait.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index ec099b03e11b..3b23afa04d6b 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -732,7 +732,7 @@ do {									\
 	int __ret = 0;							\
 	if (!(condition))						\
 		__ret = __wait_event_interruptible_lock_irq(wq,		\
-						condition, lock,)	\
+						condition, lock,);	\
 	__ret;								\
 })
 
-- 
cgit 


From 11a4d435a2d75918039540f08b259969c63b8635 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue, 22 Oct 2013 15:24:58 -0300
Subject: perf test: Clarify the "sample parsing" test entry

Before:

  [root@sandy ~]# perf test -v 22
  22: Test sample parsing                                    :
  --- start ---
  sample format has changed - test needs updating
  ---- end ----
  Test sample parsing: FAILED!
  [root@sandy ~]#

After:

  [root@sandy ~]# perf test -v 22
  22: Test sample parsing                                    :
  --- start ---
  sample format has changed, some new PERF_SAMPLE_ bit was introduced - test needs updating
  ---- end ----
  Test sample parsing: FAILED!
  [root@sandy ~]#

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-8cazc2fpmk70jcbww8c0cobx@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/tests/sample-parsing.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/tests/sample-parsing.c b/tools/perf/tests/sample-parsing.c
index 77f598dbd97a..17d000c6c8ff 100644
--- a/tools/perf/tests/sample-parsing.c
+++ b/tools/perf/tests/sample-parsing.c
@@ -276,7 +276,7 @@ int test__sample_parsing(void)
 	 * were added.
 	 */
 	if (PERF_SAMPLE_MAX > PERF_SAMPLE_IDENTIFIER << 1) {
-		pr_debug("sample format has changed - test needs updating\n");
+		pr_debug("sample format has changed, some new PERF_SAMPLE_ bit was introduced - test needs updating\n");
 		return -1;
 	}
 
-- 
cgit 


From 4ac2f1c1014a121f1493a9d5207258793c576438 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue, 22 Oct 2013 15:28:11 -0300
Subject: perf test: Consider PERF_SAMPLE_TRANSACTION in the "sample parsing"
 test

[root@sandy ~]# perf test -v 22
22: Test sample parsing                                    :
--- start ---
sample format has changed, some new PERF_SAMPLE_ bit was introduced - test needs updating
---- end ----
Test sample parsing: FAILED!
[root@sandy ~]#

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-cx83wuzz30m10m4s1xt0ocyq@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/tests/sample-parsing.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/tests/sample-parsing.c b/tools/perf/tests/sample-parsing.c
index 17d000c6c8ff..61c9da2eb3a9 100644
--- a/tools/perf/tests/sample-parsing.c
+++ b/tools/perf/tests/sample-parsing.c
@@ -275,7 +275,7 @@ int test__sample_parsing(void)
 	 * Fail the test if it has not been updated when new sample format bits
 	 * were added.
 	 */
-	if (PERF_SAMPLE_MAX > PERF_SAMPLE_IDENTIFIER << 1) {
+	if (PERF_SAMPLE_MAX > PERF_SAMPLE_TRANSACTION << 1) {
 		pr_debug("sample format has changed, some new PERF_SAMPLE_ bit was introduced - test needs updating\n");
 		return -1;
 	}
-- 
cgit 


From c824c4338ac47979c69ba6f8faab33670ae179df Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue, 22 Oct 2013 19:01:31 -0300
Subject: perf tools: Stop using 'self' in some more places

As suggested by tglx, 'self' should be replaced by something that is
more useful.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-fmblhc6tbb99tk1q8vowtsbj@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-annotate.c |   4 +-
 tools/perf/builtin-diff.c     |   5 +-
 tools/perf/builtin-inject.c   |  22 ++++----
 tools/perf/builtin-report.c   |  14 ++---
 tools/perf/util/build-id.c    |   6 +-
 tools/perf/util/hist.c        |  18 +++---
 tools/perf/util/sort.c        | 124 +++++++++++++++++++++---------------------
 tools/perf/util/strfilter.c   |  46 ++++++++--------
 tools/perf/util/thread.c      |  72 ++++++++++++------------
 9 files changed, 155 insertions(+), 156 deletions(-)

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 03cfa592071f..17c6b494e8cc 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -118,11 +118,11 @@ static int hist_entry__tty_annotate(struct hist_entry *he,
 				    ann->print_line, ann->full_paths, 0, 0);
 }
 
-static void hists__find_annotations(struct hists *self,
+static void hists__find_annotations(struct hists *hists,
 				    struct perf_evsel *evsel,
 				    struct perf_annotate *ann)
 {
-	struct rb_node *nd = rb_first(&self->entries), *next;
+	struct rb_node *nd = rb_first(&hists->entries), *next;
 	int key = K_RIGHT;
 
 	while (nd) {
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 419d27dd708b..9c828881714c 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -303,12 +303,11 @@ static int formula_fprintf(struct hist_entry *he, struct hist_entry *pair,
 	return -1;
 }
 
-static int hists__add_entry(struct hists *self,
+static int hists__add_entry(struct hists *hists,
 			    struct addr_location *al, u64 period,
 			    u64 weight, u64 transaction)
 {
-	if (__hists__add_entry(self, al, NULL, period, weight, transaction)
-	    != NULL)
+	if (__hists__add_entry(hists, al, NULL, period, weight, transaction) != NULL)
 		return 0;
 	return -ENOMEM;
 }
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 4aa6d7850bcc..eb1a5941912b 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -162,38 +162,38 @@ static int perf_event__repipe_tracing_data(struct perf_tool *tool,
 	return err;
 }
 
-static int dso__read_build_id(struct dso *self)
+static int dso__read_build_id(struct dso *dso)
 {
-	if (self->has_build_id)
+	if (dso->has_build_id)
 		return 0;
 
-	if (filename__read_build_id(self->long_name, self->build_id,
-				    sizeof(self->build_id)) > 0) {
-		self->has_build_id = true;
+	if (filename__read_build_id(dso->long_name, dso->build_id,
+				    sizeof(dso->build_id)) > 0) {
+		dso->has_build_id = true;
 		return 0;
 	}
 
 	return -1;
 }
 
-static int dso__inject_build_id(struct dso *self, struct perf_tool *tool,
+static int dso__inject_build_id(struct dso *dso, struct perf_tool *tool,
 				struct machine *machine)
 {
 	u16 misc = PERF_RECORD_MISC_USER;
 	int err;
 
-	if (dso__read_build_id(self) < 0) {
-		pr_debug("no build_id found for %s\n", self->long_name);
+	if (dso__read_build_id(dso) < 0) {
+		pr_debug("no build_id found for %s\n", dso->long_name);
 		return -1;
 	}
 
-	if (self->kernel)
+	if (dso->kernel)
 		misc = PERF_RECORD_MISC_KERNEL;
 
-	err = perf_event__synthesize_build_id(tool, self, misc, perf_event__repipe,
+	err = perf_event__synthesize_build_id(tool, dso, misc, perf_event__repipe,
 					      machine);
 	if (err) {
-		pr_err("Can't synthesize build_id event for %s\n", self->long_name);
+		pr_err("Can't synthesize build_id event for %s\n", dso->long_name);
 		return -1;
 	}
 
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 81addcabb356..e3598a456017 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -373,9 +373,9 @@ static int process_read_event(struct perf_tool *tool,
 /* For pipe mode, sample_type is not currently set */
 static int perf_report__setup_sample_type(struct perf_report *rep)
 {
-	struct perf_session *self = rep->session;
-	u64 sample_type = perf_evlist__combined_sample_type(self->evlist);
-	bool is_pipe = perf_data_file__is_pipe(self->file);
+	struct perf_session *session = rep->session;
+	u64 sample_type = perf_evlist__combined_sample_type(session->evlist);
+	bool is_pipe = perf_data_file__is_pipe(session->file);
 
 	if (!is_pipe && !(sample_type & PERF_SAMPLE_CALLCHAIN)) {
 		if (sort__has_parent) {
@@ -417,14 +417,14 @@ static void sig_handler(int sig __maybe_unused)
 }
 
 static size_t hists__fprintf_nr_sample_events(struct perf_report *rep,
-					      struct hists *self,
+					      struct hists *hists,
 					      const char *evname, FILE *fp)
 {
 	size_t ret;
 	char unit;
-	unsigned long nr_samples = self->stats.nr_events[PERF_RECORD_SAMPLE];
-	u64 nr_events = self->stats.total_period;
-	struct perf_evsel *evsel = hists_to_evsel(self);
+	unsigned long nr_samples = hists->stats.nr_events[PERF_RECORD_SAMPLE];
+	u64 nr_events = hists->stats.total_period;
+	struct perf_evsel *evsel = hists_to_evsel(hists);
 	char buf[512];
 	size_t size = sizeof(buf);
 
diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index 7ded71d19d75..a92770c98cc7 100644
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -89,14 +89,14 @@ int build_id__sprintf(const u8 *build_id, int len, char *bf)
 	return raw - build_id;
 }
 
-char *dso__build_id_filename(struct dso *self, char *bf, size_t size)
+char *dso__build_id_filename(struct dso *dso, char *bf, size_t size)
 {
 	char build_id_hex[BUILD_ID_SIZE * 2 + 1];
 
-	if (!self->has_build_id)
+	if (!dso->has_build_id)
 		return NULL;
 
-	build_id__sprintf(self->build_id, sizeof(self->build_id), build_id_hex);
+	build_id__sprintf(dso->build_id, sizeof(dso->build_id), build_id_hex);
 	if (bf == NULL) {
 		if (asprintf(&bf, "%s/.build-id/%.2s/%s", buildid_dir,
 			     build_id_hex, build_id_hex + 2) < 0)
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index cca03831f41a..f0b863ef4896 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -406,7 +406,7 @@ out:
 	return he;
 }
 
-struct hist_entry *__hists__add_mem_entry(struct hists *self,
+struct hist_entry *__hists__add_mem_entry(struct hists *hists,
 					  struct addr_location *al,
 					  struct symbol *sym_parent,
 					  struct mem_info *mi,
@@ -429,14 +429,14 @@ struct hist_entry *__hists__add_mem_entry(struct hists *self,
 		.level	= al->level,
 		.parent = sym_parent,
 		.filtered = symbol__parent_filter(sym_parent),
-		.hists = self,
+		.hists = hists,
 		.mem_info = mi,
 		.branch_info = NULL,
 	};
-	return add_hist_entry(self, &entry, al, period, weight);
+	return add_hist_entry(hists, &entry, al, period, weight);
 }
 
-struct hist_entry *__hists__add_branch_entry(struct hists *self,
+struct hist_entry *__hists__add_branch_entry(struct hists *hists,
 					     struct addr_location *al,
 					     struct symbol *sym_parent,
 					     struct branch_info *bi,
@@ -460,14 +460,14 @@ struct hist_entry *__hists__add_branch_entry(struct hists *self,
 		.parent = sym_parent,
 		.filtered = symbol__parent_filter(sym_parent),
 		.branch_info = bi,
-		.hists	= self,
+		.hists	= hists,
 		.mem_info = NULL,
 	};
 
-	return add_hist_entry(self, &entry, al, period, weight);
+	return add_hist_entry(hists, &entry, al, period, weight);
 }
 
-struct hist_entry *__hists__add_entry(struct hists *self,
+struct hist_entry *__hists__add_entry(struct hists *hists,
 				      struct addr_location *al,
 				      struct symbol *sym_parent, u64 period,
 				      u64 weight, u64 transaction)
@@ -488,13 +488,13 @@ struct hist_entry *__hists__add_entry(struct hists *self,
 		},
 		.parent = sym_parent,
 		.filtered = symbol__parent_filter(sym_parent),
-		.hists	= self,
+		.hists	= hists,
 		.branch_info = NULL,
 		.mem_info = NULL,
 		.transaction = transaction,
 	};
 
-	return add_hist_entry(self, &entry, al, period, weight);
+	return add_hist_entry(hists, &entry, al, period, weight);
 }
 
 int64_t
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 1f9821db9e77..19b4aa279d1e 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -60,11 +60,11 @@ sort__thread_cmp(struct hist_entry *left, struct hist_entry *right)
 	return right->thread->tid - left->thread->tid;
 }
 
-static int hist_entry__thread_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__thread_snprintf(struct hist_entry *he, char *bf,
 				       size_t size, unsigned int width)
 {
 	return repsep_snprintf(bf, size, "%*s:%5d", width - 6,
-			      self->thread->comm ?: "", self->thread->tid);
+			      he->thread->comm ?: "", he->thread->tid);
 }
 
 struct sort_entry sort_thread = {
@@ -94,10 +94,10 @@ sort__comm_collapse(struct hist_entry *left, struct hist_entry *right)
 	return strcmp(comm_l, comm_r);
 }
 
-static int hist_entry__comm_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__comm_snprintf(struct hist_entry *he, char *bf,
 				     size_t size, unsigned int width)
 {
-	return repsep_snprintf(bf, size, "%*s", width, self->thread->comm);
+	return repsep_snprintf(bf, size, "%*s", width, he->thread->comm);
 }
 
 struct sort_entry sort_comm = {
@@ -148,10 +148,10 @@ static int _hist_entry__dso_snprintf(struct map *map, char *bf,
 	return repsep_snprintf(bf, size, "%-*s", width, "[unknown]");
 }
 
-static int hist_entry__dso_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__dso_snprintf(struct hist_entry *he, char *bf,
 				    size_t size, unsigned int width)
 {
-	return _hist_entry__dso_snprintf(self->ms.map, bf, size, width);
+	return _hist_entry__dso_snprintf(he->ms.map, bf, size, width);
 }
 
 struct sort_entry sort_dso = {
@@ -234,11 +234,11 @@ static int _hist_entry__sym_snprintf(struct map *map, struct symbol *sym,
 	return ret;
 }
 
-static int hist_entry__sym_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__sym_snprintf(struct hist_entry *he, char *bf,
 				    size_t size, unsigned int width)
 {
-	return _hist_entry__sym_snprintf(self->ms.map, self->ms.sym, self->ip,
-					 self->level, bf, size, width);
+	return _hist_entry__sym_snprintf(he->ms.map, he->ms.sym, he->ip,
+					 he->level, bf, size, width);
 }
 
 struct sort_entry sort_sym = {
@@ -274,11 +274,11 @@ sort__srcline_cmp(struct hist_entry *left, struct hist_entry *right)
 	return strcmp(left->srcline, right->srcline);
 }
 
-static int hist_entry__srcline_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__srcline_snprintf(struct hist_entry *he, char *bf,
 					size_t size,
 					unsigned int width __maybe_unused)
 {
-	return repsep_snprintf(bf, size, "%s", self->srcline);
+	return repsep_snprintf(bf, size, "%s", he->srcline);
 }
 
 struct sort_entry sort_srcline = {
@@ -302,11 +302,11 @@ sort__parent_cmp(struct hist_entry *left, struct hist_entry *right)
 	return strcmp(sym_l->name, sym_r->name);
 }
 
-static int hist_entry__parent_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__parent_snprintf(struct hist_entry *he, char *bf,
 				       size_t size, unsigned int width)
 {
 	return repsep_snprintf(bf, size, "%-*s", width,
-			      self->parent ? self->parent->name : "[other]");
+			      he->parent ? he->parent->name : "[other]");
 }
 
 struct sort_entry sort_parent = {
@@ -324,10 +324,10 @@ sort__cpu_cmp(struct hist_entry *left, struct hist_entry *right)
 	return right->cpu - left->cpu;
 }
 
-static int hist_entry__cpu_snprintf(struct hist_entry *self, char *bf,
-				       size_t size, unsigned int width)
+static int hist_entry__cpu_snprintf(struct hist_entry *he, char *bf,
+				    size_t size, unsigned int width)
 {
-	return repsep_snprintf(bf, size, "%*d", width, self->cpu);
+	return repsep_snprintf(bf, size, "%*d", width, he->cpu);
 }
 
 struct sort_entry sort_cpu = {
@@ -346,10 +346,10 @@ sort__dso_from_cmp(struct hist_entry *left, struct hist_entry *right)
 			      right->branch_info->from.map);
 }
 
-static int hist_entry__dso_from_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__dso_from_snprintf(struct hist_entry *he, char *bf,
 				    size_t size, unsigned int width)
 {
-	return _hist_entry__dso_snprintf(self->branch_info->from.map,
+	return _hist_entry__dso_snprintf(he->branch_info->from.map,
 					 bf, size, width);
 }
 
@@ -360,10 +360,10 @@ sort__dso_to_cmp(struct hist_entry *left, struct hist_entry *right)
 			      right->branch_info->to.map);
 }
 
-static int hist_entry__dso_to_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__dso_to_snprintf(struct hist_entry *he, char *bf,
 				       size_t size, unsigned int width)
 {
-	return _hist_entry__dso_snprintf(self->branch_info->to.map,
+	return _hist_entry__dso_snprintf(he->branch_info->to.map,
 					 bf, size, width);
 }
 
@@ -391,21 +391,21 @@ sort__sym_to_cmp(struct hist_entry *left, struct hist_entry *right)
 	return _sort__sym_cmp(to_l->sym, to_r->sym);
 }
 
-static int hist_entry__sym_from_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__sym_from_snprintf(struct hist_entry *he, char *bf,
 					 size_t size, unsigned int width)
 {
-	struct addr_map_symbol *from = &self->branch_info->from;
+	struct addr_map_symbol *from = &he->branch_info->from;
 	return _hist_entry__sym_snprintf(from->map, from->sym, from->addr,
-					 self->level, bf, size, width);
+					 he->level, bf, size, width);
 
 }
 
-static int hist_entry__sym_to_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__sym_to_snprintf(struct hist_entry *he, char *bf,
 				       size_t size, unsigned int width)
 {
-	struct addr_map_symbol *to = &self->branch_info->to;
+	struct addr_map_symbol *to = &he->branch_info->to;
 	return _hist_entry__sym_snprintf(to->map, to->sym, to->addr,
-					 self->level, bf, size, width);
+					 he->level, bf, size, width);
 
 }
 
@@ -448,13 +448,13 @@ sort__mispredict_cmp(struct hist_entry *left, struct hist_entry *right)
 	return mp || p;
 }
 
-static int hist_entry__mispredict_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__mispredict_snprintf(struct hist_entry *he, char *bf,
 				    size_t size, unsigned int width){
 	static const char *out = "N/A";
 
-	if (self->branch_info->flags.predicted)
+	if (he->branch_info->flags.predicted)
 		out = "N";
-	else if (self->branch_info->flags.mispred)
+	else if (he->branch_info->flags.mispred)
 		out = "Y";
 
 	return repsep_snprintf(bf, size, "%-*s", width, out);
@@ -474,19 +474,19 @@ sort__daddr_cmp(struct hist_entry *left, struct hist_entry *right)
 	return (int64_t)(r - l);
 }
 
-static int hist_entry__daddr_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__daddr_snprintf(struct hist_entry *he, char *bf,
 				    size_t size, unsigned int width)
 {
 	uint64_t addr = 0;
 	struct map *map = NULL;
 	struct symbol *sym = NULL;
 
-	if (self->mem_info) {
-		addr = self->mem_info->daddr.addr;
-		map = self->mem_info->daddr.map;
-		sym = self->mem_info->daddr.sym;
+	if (he->mem_info) {
+		addr = he->mem_info->daddr.addr;
+		map = he->mem_info->daddr.map;
+		sym = he->mem_info->daddr.sym;
 	}
-	return _hist_entry__sym_snprintf(map, sym, addr, self->level, bf, size,
+	return _hist_entry__sym_snprintf(map, sym, addr, he->level, bf, size,
 					 width);
 }
 
@@ -504,13 +504,13 @@ sort__dso_daddr_cmp(struct hist_entry *left, struct hist_entry *right)
 	return _sort__dso_cmp(map_l, map_r);
 }
 
-static int hist_entry__dso_daddr_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__dso_daddr_snprintf(struct hist_entry *he, char *bf,
 				    size_t size, unsigned int width)
 {
 	struct map *map = NULL;
 
-	if (self->mem_info)
-		map = self->mem_info->daddr.map;
+	if (he->mem_info)
+		map = he->mem_info->daddr.map;
 
 	return _hist_entry__dso_snprintf(map, bf, size, width);
 }
@@ -534,14 +534,14 @@ sort__locked_cmp(struct hist_entry *left, struct hist_entry *right)
 	return (int64_t)(data_src_r.mem_lock - data_src_l.mem_lock);
 }
 
-static int hist_entry__locked_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__locked_snprintf(struct hist_entry *he, char *bf,
 				    size_t size, unsigned int width)
 {
 	const char *out;
 	u64 mask = PERF_MEM_LOCK_NA;
 
-	if (self->mem_info)
-		mask = self->mem_info->data_src.mem_lock;
+	if (he->mem_info)
+		mask = he->mem_info->data_src.mem_lock;
 
 	if (mask & PERF_MEM_LOCK_NA)
 		out = "N/A";
@@ -583,7 +583,7 @@ static const char * const tlb_access[] = {
 };
 #define NUM_TLB_ACCESS (sizeof(tlb_access)/sizeof(const char *))
 
-static int hist_entry__tlb_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__tlb_snprintf(struct hist_entry *he, char *bf,
 				    size_t size, unsigned int width)
 {
 	char out[64];
@@ -594,8 +594,8 @@ static int hist_entry__tlb_snprintf(struct hist_entry *self, char *bf,
 
 	out[0] = '\0';
 
-	if (self->mem_info)
-		m = self->mem_info->data_src.mem_dtlb;
+	if (he->mem_info)
+		m = he->mem_info->data_src.mem_dtlb;
 
 	hit = m & PERF_MEM_TLB_HIT;
 	miss = m & PERF_MEM_TLB_MISS;
@@ -660,7 +660,7 @@ static const char * const mem_lvl[] = {
 };
 #define NUM_MEM_LVL (sizeof(mem_lvl)/sizeof(const char *))
 
-static int hist_entry__lvl_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__lvl_snprintf(struct hist_entry *he, char *bf,
 				    size_t size, unsigned int width)
 {
 	char out[64];
@@ -669,8 +669,8 @@ static int hist_entry__lvl_snprintf(struct hist_entry *self, char *bf,
 	u64 m =  PERF_MEM_LVL_NA;
 	u64 hit, miss;
 
-	if (self->mem_info)
-		m  = self->mem_info->data_src.mem_lvl;
+	if (he->mem_info)
+		m  = he->mem_info->data_src.mem_lvl;
 
 	out[0] = '\0';
 
@@ -728,7 +728,7 @@ static const char * const snoop_access[] = {
 };
 #define NUM_SNOOP_ACCESS (sizeof(snoop_access)/sizeof(const char *))
 
-static int hist_entry__snoop_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__snoop_snprintf(struct hist_entry *he, char *bf,
 				    size_t size, unsigned int width)
 {
 	char out[64];
@@ -738,8 +738,8 @@ static int hist_entry__snoop_snprintf(struct hist_entry *self, char *bf,
 
 	out[0] = '\0';
 
-	if (self->mem_info)
-		m = self->mem_info->data_src.mem_snoop;
+	if (he->mem_info)
+		m = he->mem_info->data_src.mem_snoop;
 
 	for (i = 0; m && i < NUM_SNOOP_ACCESS; i++, m >>= 1) {
 		if (!(m & 0x1))
@@ -776,10 +776,10 @@ sort__local_weight_cmp(struct hist_entry *left, struct hist_entry *right)
 	return he_weight(left) - he_weight(right);
 }
 
-static int hist_entry__local_weight_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__local_weight_snprintf(struct hist_entry *he, char *bf,
 				    size_t size, unsigned int width)
 {
-	return repsep_snprintf(bf, size, "%-*llu", width, he_weight(self));
+	return repsep_snprintf(bf, size, "%-*llu", width, he_weight(he));
 }
 
 struct sort_entry sort_local_weight = {
@@ -795,10 +795,10 @@ sort__global_weight_cmp(struct hist_entry *left, struct hist_entry *right)
 	return left->stat.weight - right->stat.weight;
 }
 
-static int hist_entry__global_weight_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__global_weight_snprintf(struct hist_entry *he, char *bf,
 					      size_t size, unsigned int width)
 {
-	return repsep_snprintf(bf, size, "%-*llu", width, self->stat.weight);
+	return repsep_snprintf(bf, size, "%-*llu", width, he->stat.weight);
 }
 
 struct sort_entry sort_global_weight = {
@@ -857,12 +857,12 @@ sort__abort_cmp(struct hist_entry *left, struct hist_entry *right)
 		right->branch_info->flags.abort;
 }
 
-static int hist_entry__abort_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__abort_snprintf(struct hist_entry *he, char *bf,
 				    size_t size, unsigned int width)
 {
 	static const char *out = ".";
 
-	if (self->branch_info->flags.abort)
+	if (he->branch_info->flags.abort)
 		out = "A";
 	return repsep_snprintf(bf, size, "%-*s", width, out);
 }
@@ -881,12 +881,12 @@ sort__in_tx_cmp(struct hist_entry *left, struct hist_entry *right)
 		right->branch_info->flags.in_tx;
 }
 
-static int hist_entry__in_tx_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__in_tx_snprintf(struct hist_entry *he, char *bf,
 				    size_t size, unsigned int width)
 {
 	static const char *out = ".";
 
-	if (self->branch_info->flags.in_tx)
+	if (he->branch_info->flags.in_tx)
 		out = "T";
 
 	return repsep_snprintf(bf, size, "%-*s", width, out);
@@ -940,10 +940,10 @@ int hist_entry__transaction_len(void)
 	return len;
 }
 
-static int hist_entry__transaction_snprintf(struct hist_entry *self, char *bf,
+static int hist_entry__transaction_snprintf(struct hist_entry *he, char *bf,
 					    size_t size, unsigned int width)
 {
-	u64 t = self->transaction;
+	u64 t = he->transaction;
 	char buf[128];
 	char *p = buf;
 	int i;
@@ -1125,7 +1125,7 @@ int setup_sorting(void)
 	return ret;
 }
 
-static void sort_entry__setup_elide(struct sort_entry *self,
+static void sort_entry__setup_elide(struct sort_entry *se,
 				    struct strlist *list,
 				    const char *list_name, FILE *fp)
 {
@@ -1133,7 +1133,7 @@ static void sort_entry__setup_elide(struct sort_entry *self,
 		if (fp != NULL)
 			fprintf(fp, "# %s: %s\n", list_name,
 				strlist__entry(list, 0)->s);
-		self->elide = true;
+		se->elide = true;
 	}
 }
 
diff --git a/tools/perf/util/strfilter.c b/tools/perf/util/strfilter.c
index 834c8ebfe38e..67e4a0082822 100644
--- a/tools/perf/util/strfilter.c
+++ b/tools/perf/util/strfilter.c
@@ -10,22 +10,22 @@ static const char *OP_not	= "!";	/* Logical NOT */
 #define is_operator(c)	((c) == '|' || (c) == '&' || (c) == '!')
 #define is_separator(c)	(is_operator(c) || (c) == '(' || (c) == ')')
 
-static void strfilter_node__delete(struct strfilter_node *self)
+static void strfilter_node__delete(struct strfilter_node *node)
 {
-	if (self) {
-		if (self->p && !is_operator(*self->p))
-			free((char *)self->p);
-		strfilter_node__delete(self->l);
-		strfilter_node__delete(self->r);
-		free(self);
+	if (node) {
+		if (node->p && !is_operator(*node->p))
+			free((char *)node->p);
+		strfilter_node__delete(node->l);
+		strfilter_node__delete(node->r);
+		free(node);
 	}
 }
 
-void strfilter__delete(struct strfilter *self)
+void strfilter__delete(struct strfilter *filter)
 {
-	if (self) {
-		strfilter_node__delete(self->root);
-		free(self);
+	if (filter) {
+		strfilter_node__delete(filter->root);
+		free(filter);
 	}
 }
 
@@ -170,30 +170,30 @@ struct strfilter *strfilter__new(const char *rules, const char **err)
 	return ret;
 }
 
-static bool strfilter_node__compare(struct strfilter_node *self,
+static bool strfilter_node__compare(struct strfilter_node *node,
 				    const char *str)
 {
-	if (!self || !self->p)
+	if (!node || !node->p)
 		return false;
 
-	switch (*self->p) {
+	switch (*node->p) {
 	case '|':	/* OR */
-		return strfilter_node__compare(self->l, str) ||
-			strfilter_node__compare(self->r, str);
+		return strfilter_node__compare(node->l, str) ||
+			strfilter_node__compare(node->r, str);
 	case '&':	/* AND */
-		return strfilter_node__compare(self->l, str) &&
-			strfilter_node__compare(self->r, str);
+		return strfilter_node__compare(node->l, str) &&
+			strfilter_node__compare(node->r, str);
 	case '!':	/* NOT */
-		return !strfilter_node__compare(self->r, str);
+		return !strfilter_node__compare(node->r, str);
 	default:
-		return strglobmatch(str, self->p);
+		return strglobmatch(str, node->p);
 	}
 }
 
 /* Return true if STR matches the filter rules */
-bool strfilter__compare(struct strfilter *self, const char *str)
+bool strfilter__compare(struct strfilter *node, const char *str)
 {
-	if (!self)
+	if (!node)
 		return false;
-	return strfilter_node__compare(self->root, str);
+	return strfilter_node__compare(node->root, str);
 }
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index e3d4a550a703..80d19a086072 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -9,51 +9,51 @@
 
 struct thread *thread__new(pid_t pid, pid_t tid)
 {
-	struct thread *self = zalloc(sizeof(*self));
+	struct thread *thread = zalloc(sizeof(*thread));
 
-	if (self != NULL) {
-		map_groups__init(&self->mg);
-		self->pid_ = pid;
-		self->tid = tid;
-		self->ppid = -1;
-		self->comm = malloc(32);
-		if (self->comm)
-			snprintf(self->comm, 32, ":%d", self->tid);
+	if (thread != NULL) {
+		map_groups__init(&thread->mg);
+		thread->pid_ = pid;
+		thread->tid = tid;
+		thread->ppid = -1;
+		thread->comm = malloc(32);
+		if (thread->comm)
+			snprintf(thread->comm, 32, ":%d", thread->tid);
 	}
 
-	return self;
+	return thread;
 }
 
-void thread__delete(struct thread *self)
+void thread__delete(struct thread *thread)
 {
-	map_groups__exit(&self->mg);
-	free(self->comm);
-	free(self);
+	map_groups__exit(&thread->mg);
+	free(thread->comm);
+	free(thread);
 }
 
-int thread__set_comm(struct thread *self, const char *comm)
+int thread__set_comm(struct thread *thread, const char *comm)
 {
 	int err;
 
-	if (self->comm)
-		free(self->comm);
-	self->comm = strdup(comm);
-	err = self->comm == NULL ? -ENOMEM : 0;
+	if (thread->comm)
+		free(thread->comm);
+	thread->comm = strdup(comm);
+	err = thread->comm == NULL ? -ENOMEM : 0;
 	if (!err) {
-		self->comm_set = true;
+		thread->comm_set = true;
 	}
 	return err;
 }
 
-int thread__comm_len(struct thread *self)
+int thread__comm_len(struct thread *thread)
 {
-	if (!self->comm_len) {
-		if (!self->comm)
+	if (!thread->comm_len) {
+		if (!thread->comm)
 			return 0;
-		self->comm_len = strlen(self->comm);
+		thread->comm_len = strlen(thread->comm);
 	}
 
-	return self->comm_len;
+	return thread->comm_len;
 }
 
 size_t thread__fprintf(struct thread *thread, FILE *fp)
@@ -62,30 +62,30 @@ size_t thread__fprintf(struct thread *thread, FILE *fp)
 	       map_groups__fprintf(&thread->mg, verbose, fp);
 }
 
-void thread__insert_map(struct thread *self, struct map *map)
+void thread__insert_map(struct thread *thread, struct map *map)
 {
-	map_groups__fixup_overlappings(&self->mg, map, verbose, stderr);
-	map_groups__insert(&self->mg, map);
+	map_groups__fixup_overlappings(&thread->mg, map, verbose, stderr);
+	map_groups__insert(&thread->mg, map);
 }
 
-int thread__fork(struct thread *self, struct thread *parent)
+int thread__fork(struct thread *thread, struct thread *parent)
 {
 	int i;
 
 	if (parent->comm_set) {
-		if (self->comm)
-			free(self->comm);
-		self->comm = strdup(parent->comm);
-		if (!self->comm)
+		if (thread->comm)
+			free(thread->comm);
+		thread->comm = strdup(parent->comm);
+		if (!thread->comm)
 			return -ENOMEM;
-		self->comm_set = true;
+		thread->comm_set = true;
 	}
 
 	for (i = 0; i < MAP__NR_TYPES; ++i)
-		if (map_groups__clone(&self->mg, &parent->mg, i) < 0)
+		if (map_groups__clone(&thread->mg, &parent->mg, i) < 0)
 			return -ENOMEM;
 
-	self->ppid = parent->tid;
+	thread->ppid = parent->tid;
 
 	return 0;
 }
-- 
cgit 


From 7969ec7728ba6340de8000ddb0a8833273629d6a Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Date: Fri, 11 Oct 2013 16:10:23 +0900
Subject: perf probe: Support "$vars" meta argument syntax for local variables

Support "$vars" meta argument syntax for tracing all local variables at
probe point.

Now you can trace all available local variables (including function
parameters) at the probe point by passing $vars.

 # perf probe --add foo $vars

This automatically finds all local variables at foo() and adds it as
probe arguments.

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20131011071023.15557.51770.stgit@udc4-manage.rcp.hitachi.co.jp
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/probe-event.c  |  1 -
 tools/perf/util/probe-finder.c | 96 ++++++++++++++++++++++++++++++++++++++----
 tools/perf/util/probe-finder.h |  1 +
 3 files changed, 89 insertions(+), 9 deletions(-)

diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 779b2dacd43f..9c6989ca2bea 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -47,7 +47,6 @@
 #include "session.h"
 
 #define MAX_CMDLEN 256
-#define MAX_PROBE_ARGS 128
 #define PERFPROBE_GROUP "probe"
 
 bool probe_event_dry_run;	/* Dry run flag */
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index c09e0a9fdf4c..5a46be968c0b 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -1136,12 +1136,78 @@ found:
 	return ret;
 }
 
+struct local_vars_finder {
+	struct probe_finder *pf;
+	struct perf_probe_arg *args;
+	int max_args;
+	int nargs;
+	int ret;
+};
+
+/* Collect available variables in this scope */
+static int copy_variables_cb(Dwarf_Die *die_mem, void *data)
+{
+	struct local_vars_finder *vf = data;
+	int tag;
+
+	tag = dwarf_tag(die_mem);
+	if (tag == DW_TAG_formal_parameter ||
+	    tag == DW_TAG_variable) {
+		if (convert_variable_location(die_mem, vf->pf->addr,
+					      vf->pf->fb_ops, NULL) == 0) {
+			vf->args[vf->nargs].var = (char *)dwarf_diename(die_mem);
+			if (vf->args[vf->nargs].var == NULL) {
+				vf->ret = -ENOMEM;
+				return DIE_FIND_CB_END;
+			}
+			pr_debug(" %s", vf->args[vf->nargs].var);
+			vf->nargs++;
+		}
+	}
+
+	if (dwarf_haspc(die_mem, vf->pf->addr))
+		return DIE_FIND_CB_CONTINUE;
+	else
+		return DIE_FIND_CB_SIBLING;
+}
+
+static int expand_probe_args(Dwarf_Die *sc_die, struct probe_finder *pf,
+			     struct perf_probe_arg *args)
+{
+	Dwarf_Die die_mem;
+	int i;
+	int n = 0;
+	struct local_vars_finder vf = {.pf = pf, .args = args,
+				.max_args = MAX_PROBE_ARGS, .ret = 0};
+
+	for (i = 0; i < pf->pev->nargs; i++) {
+		/* var never be NULL */
+		if (strcmp(pf->pev->args[i].var, "$vars") == 0) {
+			pr_debug("Expanding $vars into:");
+			vf.nargs = n;
+			/* Special local variables */
+			die_find_child(sc_die, copy_variables_cb, (void *)&vf,
+				       &die_mem);
+			pr_debug(" (%d)\n", vf.nargs - n);
+			if (vf.ret < 0)
+				return vf.ret;
+			n = vf.nargs;
+		} else {
+			/* Copy normal argument */
+			args[n] = pf->pev->args[i];
+			n++;
+		}
+	}
+	return n;
+}
+
 /* Add a found probe point into trace event list */
 static int add_probe_trace_event(Dwarf_Die *sc_die, struct probe_finder *pf)
 {
 	struct trace_event_finder *tf =
 			container_of(pf, struct trace_event_finder, pf);
 	struct probe_trace_event *tev;
+	struct perf_probe_arg *args;
 	int ret, i;
 
 	/* Check number of tevs */
@@ -1161,21 +1227,35 @@ static int add_probe_trace_event(Dwarf_Die *sc_die, struct probe_finder *pf)
 	pr_debug("Probe point found: %s+%lu\n", tev->point.symbol,
 		 tev->point.offset);
 
-	/* Find each argument */
-	tev->nargs = pf->pev->nargs;
-	tev->args = zalloc(sizeof(struct probe_trace_arg) * tev->nargs);
-	if (tev->args == NULL)
+	/* Expand special probe argument if exist */
+	args = zalloc(sizeof(struct perf_probe_arg) * MAX_PROBE_ARGS);
+	if (args == NULL)
 		return -ENOMEM;
-	for (i = 0; i < pf->pev->nargs; i++) {
-		pf->pvar = &pf->pev->args[i];
+
+	ret = expand_probe_args(sc_die, pf, args);
+	if (ret < 0)
+		goto end;
+
+	tev->nargs = ret;
+	tev->args = zalloc(sizeof(struct probe_trace_arg) * tev->nargs);
+	if (tev->args == NULL) {
+		ret = -ENOMEM;
+		goto end;
+	}
+
+	/* Find each argument */
+	for (i = 0; i < tev->nargs; i++) {
+		pf->pvar = &args[i];
 		pf->tvar = &tev->args[i];
 		/* Variable should be found from scope DIE */
 		ret = find_variable(sc_die, pf);
 		if (ret != 0)
-			return ret;
+			break;
 	}
 
-	return 0;
+end:
+	free(args);
+	return ret;
 }
 
 /* Find probe_trace_events specified by perf_probe_event from debuginfo */
diff --git a/tools/perf/util/probe-finder.h b/tools/perf/util/probe-finder.h
index 3f0c29dd6ac5..d6dab0e0a937 100644
--- a/tools/perf/util/probe-finder.h
+++ b/tools/perf/util/probe-finder.h
@@ -7,6 +7,7 @@
 
 #define MAX_PROBE_BUFFER	1024
 #define MAX_PROBES		 128
+#define MAX_PROBE_ARGS		 128
 
 static inline int is_c_varname(const char *name)
 {
-- 
cgit 


From 3d918a12a1b3088ac16ff37fa52760639d6e2403 Mon Sep 17 00:00:00 2001
From: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Date: Fri, 11 Oct 2013 16:10:26 +0900
Subject: perf probe: Find fentry mcount fuzzed parameter location

At this point, --fentry (mcount function entry) option for gcc fuzzes
the debuginfo variable locations by skipping the mcount instruction
offset (on x86, this is a 5 byte call instruction).

This makes variable searching fail at the entry of functions which
are mcount'ed.

e.g.)
Available variables at vfs_read
        @<vfs_read+0>
                (No matched variables)

This patch adds additional location search at the function entry point
to solve this issue, which tries to find the earliest address for the
variable location.

Note that this only works with function parameters (formal parameters)
because any local variables should not exist on the function entry
address (those are not initialized yet).

With this patch, perf probe shows correct parameters if possible;
 # perf probe --vars vfs_read
 Available variables at vfs_read
         @<vfs_read+0>
                 char*   buf
                 loff_t* pos
                 size_t  count
                 struct file*    file

Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20131011071025.15557.13275.stgit@udc4-manage.rcp.hitachi.co.jp
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/probe-finder.c | 39 +++++++++++++++++++++++++++++++--------
 1 file changed, 31 insertions(+), 8 deletions(-)

diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 5a46be968c0b..c04405296e5b 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -273,12 +273,15 @@ static struct probe_trace_arg_ref *alloc_trace_arg_ref(long offs)
 /*
  * Convert a location into trace_arg.
  * If tvar == NULL, this just checks variable can be converted.
+ * If fentry == true and vr_die is a parameter, do huristic search
+ * for the location fuzzed by function entry mcount.
  */
 static int convert_variable_location(Dwarf_Die *vr_die, Dwarf_Addr addr,
-				     Dwarf_Op *fb_ops,
+				     Dwarf_Op *fb_ops, Dwarf_Die *sp_die,
 				     struct probe_trace_arg *tvar)
 {
 	Dwarf_Attribute attr;
+	Dwarf_Addr tmp = 0;
 	Dwarf_Op *op;
 	size_t nops;
 	unsigned int regn;
@@ -291,12 +294,29 @@ static int convert_variable_location(Dwarf_Die *vr_die, Dwarf_Addr addr,
 		goto static_var;
 
 	/* TODO: handle more than 1 exprs */
-	if (dwarf_attr(vr_die, DW_AT_location, &attr) == NULL ||
-	    dwarf_getlocation_addr(&attr, addr, &op, &nops, 1) <= 0 ||
-	    nops == 0) {
-		/* TODO: Support const_value */
+	if (dwarf_attr(vr_die, DW_AT_location, &attr) == NULL)
+		return -EINVAL;	/* Broken DIE ? */
+	if (dwarf_getlocation_addr(&attr, addr, &op, &nops, 1) <= 0) {
+		ret = dwarf_entrypc(sp_die, &tmp);
+		if (ret || addr != tmp ||
+		    dwarf_tag(vr_die) != DW_TAG_formal_parameter ||
+		    dwarf_highpc(sp_die, &tmp))
+			return -ENOENT;
+		/*
+		 * This is fuzzed by fentry mcount. We try to find the
+		 * parameter location at the earliest address.
+		 */
+		for (addr += 1; addr <= tmp; addr++) {
+			if (dwarf_getlocation_addr(&attr, addr, &op,
+						   &nops, 1) > 0)
+				goto found;
+		}
 		return -ENOENT;
 	}
+found:
+	if (nops == 0)
+		/* TODO: Support const_value */
+		return -ENOENT;
 
 	if (op->atom == DW_OP_addr) {
 static_var:
@@ -600,7 +620,7 @@ static int convert_variable(Dwarf_Die *vr_die, struct probe_finder *pf)
 		 dwarf_diename(vr_die));
 
 	ret = convert_variable_location(vr_die, pf->addr, pf->fb_ops,
-					pf->tvar);
+					&pf->sp_die, pf->tvar);
 	if (ret == -ENOENT)
 		pr_err("Failed to find the location of %s at this address.\n"
 		       " Perhaps, it has been optimized out.\n", pf->pvar->var);
@@ -1148,13 +1168,15 @@ struct local_vars_finder {
 static int copy_variables_cb(Dwarf_Die *die_mem, void *data)
 {
 	struct local_vars_finder *vf = data;
+	struct probe_finder *pf = vf->pf;
 	int tag;
 
 	tag = dwarf_tag(die_mem);
 	if (tag == DW_TAG_formal_parameter ||
 	    tag == DW_TAG_variable) {
 		if (convert_variable_location(die_mem, vf->pf->addr,
-					      vf->pf->fb_ops, NULL) == 0) {
+					      vf->pf->fb_ops, &pf->sp_die,
+					      NULL) == 0) {
 			vf->args[vf->nargs].var = (char *)dwarf_diename(die_mem);
 			if (vf->args[vf->nargs].var == NULL) {
 				vf->ret = -ENOMEM;
@@ -1302,7 +1324,8 @@ static int collect_variables_cb(Dwarf_Die *die_mem, void *data)
 	if (tag == DW_TAG_formal_parameter ||
 	    tag == DW_TAG_variable) {
 		ret = convert_variable_location(die_mem, af->pf.addr,
-						af->pf.fb_ops, NULL);
+						af->pf.fb_ops, &af->pf.sp_die,
+						NULL);
 		if (ret == 0) {
 			ret = die_get_varname(die_mem, buf, MAX_VAR_LEN);
 			pr_debug2("Add new var: %s\n", buf);
-- 
cgit 


From 4157922a9070aef6a516573111fb1c0c67b891ac Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 23 Oct 2013 14:37:56 +0200
Subject: perf bench: Change the procps visible command-name of invididual
 benchmark tests plus cleanups

Before this patch, looking at 'perf bench sched pipe' behavior over
'top' only told us that something related to perf is running:

      PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
    19934 mingo     20   0 54836 1296  952 R 18.6  0.0   0:00.56 perf
    19935 mingo     20   0 54836  384   36 S 18.6  0.0   0:00.56 perf

After the patch it's clearly visible what's going on:

      PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
    19744 mingo     20   0  125m 3536 2644 R 68.2  0.0   0:01.12 sched-pipe
    19745 mingo     20   0  125m 1172  276 R 68.2  0.0   0:01.12 sched-pipe

The benchmark-subsystem name is concatenated with the individual
testcase name.

Unfortunately 'perf top' does not show the reconfigured name, possibly
because it caches ->comm[] values and does not recognize changes to
them?

Also clean up a few bits in builtin-bench.c while at it and reorganize
the code and the output strings to be consistent.

Use iterators to access the various arrays. Rename 'suites' concept to
'benchmark collection' and the 'bench_suite' to 'benchmark/bench'. The
many repetitions of 'suite' made the code harder to read and understand.

The new output is:

  comet:~/tip/tools/perf> ./perf bench
  Usage:
        perf bench [<common options>] <collection> <benchmark> [<options>]

        # List of all available benchmark collections:

         sched: Scheduler and IPC benchmarks
           mem: Memory access benchmarks
          numa: NUMA scheduling and MM benchmarks
           all: All benchmarks

  comet:~/tip/tools/perf> ./perf bench sched

        # List of available benchmarks for collection 'sched':

     messaging: Benchmark for scheduling and IPC
          pipe: Benchmark for pipe() between two processes
           all: Test all scheduler benchmarks

  comet:~/tip/tools/perf> ./perf bench mem

        # List of available benchmarks for collection 'mem':

        memcpy: Benchmark for memcpy()
        memset: Benchmark for memset() tests
           all: Test all memory benchmarks

  comet:~/tip/tools/perf> ./perf bench numa

        # List of available benchmarks for collection 'numa':

           mem: Benchmark for NUMA workloads
           all: Test all NUMA benchmarks

Individual benchmark modules were not touched.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Hitoshi Mitake <h.mitake@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20131023123756.GA17871@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-bench.c | 239 +++++++++++++++++++++++----------------------
 1 file changed, 122 insertions(+), 117 deletions(-)

diff --git a/tools/perf/builtin-bench.c b/tools/perf/builtin-bench.c
index 33af80fa49cf..e47f90cc7b98 100644
--- a/tools/perf/builtin-bench.c
+++ b/tools/perf/builtin-bench.c
@@ -1,21 +1,18 @@
 /*
- *
  * builtin-bench.c
  *
- * General benchmarking subsystem provided by perf
+ * General benchmarking collections provided by perf
  *
  * Copyright (C) 2009, Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>
- *
  */
 
 /*
+ * Available benchmark collection list:
  *
- * Available subsystem list:
- *  sched ... scheduler and IPC mechanism
+ *  sched ... scheduler and IPC performance
  *  mem   ... memory access performance
- *
+ *  numa  ... NUMA scheduling and MM performance
  */
-
 #include "perf.h"
 #include "util/util.h"
 #include "util/parse-options.h"
@@ -25,112 +22,92 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <sys/prctl.h>
 
-struct bench_suite {
-	const char *name;
-	const char *summary;
-	int (*fn)(int, const char **, const char *);
+typedef int (*bench_fn_t)(int argc, const char **argv, const char *prefix);
+
+struct bench {
+	const char	*name;
+	const char	*summary;
+	bench_fn_t	fn;
 };
-						\
-/* sentinel: easy for help */
-#define suite_all { "all", "Test all benchmark suites", NULL }
 
 #ifdef HAVE_LIBNUMA_SUPPORT
-static struct bench_suite numa_suites[] = {
-	{ "mem",
-	  "Benchmark for NUMA workloads",
-	  bench_numa },
-	suite_all,
-	{ NULL,
-	  NULL,
-	  NULL                  }
+static struct bench numa_benchmarks[] = {
+	{ "mem",	"Benchmark for NUMA workloads",			bench_numa		},
+	{ "all",	"Test all NUMA benchmarks",			NULL			},
+	{ NULL,		NULL,						NULL			}
 };
 #endif
 
-static struct bench_suite sched_suites[] = {
-	{ "messaging",
-	  "Benchmark for scheduler and IPC mechanisms",
-	  bench_sched_messaging },
-	{ "pipe",
-	  "Flood of communication over pipe() between two processes",
-	  bench_sched_pipe      },
-	suite_all,
-	{ NULL,
-	  NULL,
-	  NULL                  }
+static struct bench sched_benchmarks[] = {
+	{ "messaging",	"Benchmark for scheduling and IPC",		bench_sched_messaging	},
+	{ "pipe",	"Benchmark for pipe() between two processes",	bench_sched_pipe	},
+	{ "all",	"Test all scheduler benchmarks",		NULL			},
+	{ NULL,		NULL,						NULL			}
 };
 
-static struct bench_suite mem_suites[] = {
-	{ "memcpy",
-	  "Simple memory copy in various ways",
-	  bench_mem_memcpy },
-	{ "memset",
-	  "Simple memory set in various ways",
-	  bench_mem_memset },
-	suite_all,
-	{ NULL,
-	  NULL,
-	  NULL             }
+static struct bench mem_benchmarks[] = {
+	{ "memcpy",	"Benchmark for memcpy()",			bench_mem_memcpy	},
+	{ "memset",	"Benchmark for memset() tests",			bench_mem_memset	},
+	{ "all",	"Test all memory benchmarks",			NULL			},
+	{ NULL,		NULL,						NULL			}
 };
 
-struct bench_subsys {
-	const char *name;
-	const char *summary;
-	struct bench_suite *suites;
+struct collection {
+	const char	*name;
+	const char	*summary;
+	struct bench	*benchmarks;
 };
 
-static struct bench_subsys subsystems[] = {
+static struct collection collections[] = {
+	{ "sched",	"Scheduler and IPC benchmarks",		sched_benchmarks	},
+	{ "mem",	"Memory access benchmarks",			mem_benchmarks		},
 #ifdef HAVE_LIBNUMA_SUPPORT
-	{ "numa",
-	  "NUMA scheduling and MM behavior",
-	  numa_suites },
+	{ "numa",	"NUMA scheduling and MM benchmarks",		numa_benchmarks		},
 #endif
-	{ "sched",
-	  "scheduler and IPC mechanism",
-	  sched_suites },
-	{ "mem",
-	  "memory access performance",
-	  mem_suites },
-	{ "all",		/* sentinel: easy for help */
-	  "all benchmark subsystem",
-	  NULL },
-	{ NULL,
-	  NULL,
-	  NULL       }
+	{ "all",	"All benchmarks",				NULL			},
+	{ NULL,		NULL,						NULL			}
 };
 
-static void dump_suites(int subsys_index)
+/* Iterate over all benchmark collections: */
+#define for_each_collection(coll) \
+	for (coll = collections; coll->name; coll++)
+
+/* Iterate over all benchmarks within a collection: */
+#define for_each_bench(coll, bench) \
+	for (bench = coll->benchmarks; bench->name; bench++)
+
+static void dump_benchmarks(struct collection *coll)
 {
-	int i;
+	struct bench *bench;
 
-	printf("# List of available suites for %s...\n\n",
-	       subsystems[subsys_index].name);
+	printf("\n        # List of available benchmarks for collection '%s':\n\n", coll->name);
 
-	for (i = 0; subsystems[subsys_index].suites[i].name; i++)
-		printf("%14s: %s\n",
-		       subsystems[subsys_index].suites[i].name,
-		       subsystems[subsys_index].suites[i].summary);
+	for_each_bench(coll, bench)
+		printf("%14s: %s\n", bench->name, bench->summary);
 
 	printf("\n");
-	return;
 }
 
 static const char *bench_format_str;
+
+/* Output/formatting style, exported to benchmark modules: */
 int bench_format = BENCH_FORMAT_DEFAULT;
 
 static const struct option bench_options[] = {
-	OPT_STRING('f', "format", &bench_format_str, "default",
-		    "Specify format style"),
+	OPT_STRING('f', "format", &bench_format_str, "default", "Specify format style"),
 	OPT_END()
 };
 
 static const char * const bench_usage[] = {
-	"perf bench [<common options>] <subsystem> <suite> [<options>]",
+	"perf bench [<common options>] <collection> <benchmark> [<options>]",
 	NULL
 };
 
 static void print_usage(void)
 {
+	struct collection *coll;
 	int i;
 
 	printf("Usage: \n");
@@ -138,11 +115,10 @@ static void print_usage(void)
 		printf("\t%s\n", bench_usage[i]);
 	printf("\n");
 
-	printf("# List of available subsystems...\n\n");
+	printf("        # List of all available benchmark collections:\n\n");
 
-	for (i = 0; subsystems[i].name; i++)
-		printf("%14s: %s\n",
-		       subsystems[i].name, subsystems[i].summary);
+	for_each_collection(coll)
+		printf("%14s: %s\n", coll->name, coll->summary);
 	printf("\n");
 }
 
@@ -159,44 +135,74 @@ static int bench_str2int(const char *str)
 	return BENCH_FORMAT_UNKNOWN;
 }
 
-static void all_suite(struct bench_subsys *subsys)	  /* FROM HERE */
+/*
+ * Run a specific benchmark but first rename the running task's ->comm[]
+ * to something meaningful:
+ */
+static int run_bench(const char *coll_name, const char *bench_name, bench_fn_t fn,
+		     int argc, const char **argv, const char *prefix)
 {
-	int i;
+	int size;
+	char *name;
+	int ret;
+
+	size = strlen(coll_name) + 1 + strlen(bench_name) + 1;
+
+	name = zalloc(size);
+	BUG_ON(!name);
+
+	scnprintf(name, size, "%s-%s", coll_name, bench_name);
+
+	prctl(PR_SET_NAME, name);
+	argv[0] = name;
+
+	ret = fn(argc, argv, prefix);
+
+	free(name);
+
+	return ret;
+}
+
+static void run_collection(struct collection *coll)
+{
+	struct bench *bench;
 	const char *argv[2];
-	struct bench_suite *suites = subsys->suites;
 
 	argv[1] = NULL;
 	/*
 	 * TODO:
-	 * preparing preset parameters for
+	 *
+	 * Preparing preset parameters for
 	 * embedded, ordinary PC, HPC, etc...
-	 * will be helpful
+	 * would be helpful.
 	 */
-	for (i = 0; suites[i].fn; i++) {
-		printf("# Running %s/%s benchmark...\n",
-		       subsys->name,
-		       suites[i].name);
+	for_each_bench(coll, bench) {
+		if (!bench->fn)
+			break;
+		printf("# Running %s/%s benchmark...\n", coll->name, bench->name);
 		fflush(stdout);
 
-		argv[1] = suites[i].name;
-		suites[i].fn(1, argv, NULL);
+		argv[1] = bench->name;
+		run_bench(coll->name, bench->name, bench->fn, 1, argv, NULL);
 		printf("\n");
 	}
 }
 
-static void all_subsystem(void)
+static void run_all_collections(void)
 {
-	int i;
-	for (i = 0; subsystems[i].suites; i++)
-		all_suite(&subsystems[i]);
+	struct collection *coll;
+
+	for_each_collection(coll)
+		run_collection(coll);
 }
 
 int cmd_bench(int argc, const char **argv, const char *prefix __maybe_unused)
 {
-	int i, j, status = 0;
+	struct collection *coll;
+	int ret = 0;
 
 	if (argc < 2) {
-		/* No subsystem specified. */
+		/* No collection specified. */
 		print_usage();
 		goto end;
 	}
@@ -206,7 +212,7 @@ int cmd_bench(int argc, const char **argv, const char *prefix __maybe_unused)
 
 	bench_format = bench_str2int(bench_format_str);
 	if (bench_format == BENCH_FORMAT_UNKNOWN) {
-		printf("Unknown format descriptor:%s\n", bench_format_str);
+		printf("Unknown format descriptor: '%s'\n", bench_format_str);
 		goto end;
 	}
 
@@ -216,52 +222,51 @@ int cmd_bench(int argc, const char **argv, const char *prefix __maybe_unused)
 	}
 
 	if (!strcmp(argv[0], "all")) {
-		all_subsystem();
+		run_all_collections();
 		goto end;
 	}
 
-	for (i = 0; subsystems[i].name; i++) {
-		if (strcmp(subsystems[i].name, argv[0]))
+	for_each_collection(coll) {
+		struct bench *bench;
+
+		if (strcmp(coll->name, argv[0]))
 			continue;
 
 		if (argc < 2) {
-			/* No suite specified. */
-			dump_suites(i);
+			/* No bench specified. */
+			dump_benchmarks(coll);
 			goto end;
 		}
 
 		if (!strcmp(argv[1], "all")) {
-			all_suite(&subsystems[i]);
+			run_collection(coll);
 			goto end;
 		}
 
-		for (j = 0; subsystems[i].suites[j].name; j++) {
-			if (strcmp(subsystems[i].suites[j].name, argv[1]))
+		for_each_bench(coll, bench) {
+			if (strcmp(bench->name, argv[1]))
 				continue;
 
 			if (bench_format == BENCH_FORMAT_DEFAULT)
-				printf("# Running %s/%s benchmark...\n",
-				       subsystems[i].name,
-				       subsystems[i].suites[j].name);
+				printf("# Running '%s/%s' benchmark:\n", coll->name, bench->name);
 			fflush(stdout);
-			status = subsystems[i].suites[j].fn(argc - 1,
-							    argv + 1, prefix);
+			ret = run_bench(coll->name, bench->name, bench->fn, argc-1, argv+1, prefix);
 			goto end;
 		}
 
 		if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) {
-			dump_suites(i);
+			dump_benchmarks(coll);
 			goto end;
 		}
 
-		printf("Unknown suite:%s for %s\n", argv[1], argv[0]);
-		status = 1;
+		printf("Unknown benchmark: '%s' for collection '%s'\n", argv[1], argv[0]);
+		ret = 1;
 		goto end;
 	}
 
-	printf("Unknown subsystem:%s\n", argv[0]);
-	status = 1;
+	printf("Unknown collection: '%s'\n", argv[0]);
+	ret = 1;
 
 end:
-	return status;
+	return ret;
 }
-- 
cgit 


From f5a82137a53f4dbb61a1739c750c7cc22a4983e9 Mon Sep 17 00:00:00 2001
From: Kirill Tkhai <tkhai@yandex.ru>
Date: Wed, 23 Oct 2013 15:08:44 +0200
Subject: scripts/tags.sh: Increase identifier list

Add		__maybe_unused
		__always_unused
		__cacheline_aligned
		__cacheline_aligned_in_smp
		ACPI_EXPORT_SYMBOL
to the list.

Signed-off-by: Kirill Tkhai <tkhai@yandex.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/tags.sh | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/scripts/tags.sh b/scripts/tags.sh
index 74f02e4dddd2..f1bcfc11cc72 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -151,13 +151,14 @@ exuberant()
 	all_target_sources | xargs $1 -a                        \
 	-I __initdata,__exitdata,__initconst,__devinitdata	\
 	-I __devinitconst,__cpuinitdata,__initdata_memblock	\
-	-I __refdata,__attribute				\
+	-I __refdata,__attribute,__maybe_unused,__always_unused \
 	-I __acquires,__releases,__deprecated			\
 	-I __read_mostly,__aligned,____cacheline_aligned        \
 	-I ____cacheline_aligned_in_smp                         \
+	-I __cacheline_aligned,__cacheline_aligned_in_smp	\
 	-I ____cacheline_internodealigned_in_smp                \
 	-I __used,__packed,__packed2__,__must_check,__must_hold	\
-	-I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL                      \
+	-I EXPORT_SYMBOL,EXPORT_SYMBOL_GPL,ACPI_EXPORT_SYMBOL   \
 	-I DEFINE_TRACE,EXPORT_TRACEPOINT_SYMBOL,EXPORT_TRACEPOINT_SYMBOL_GPL \
 	-I static,const						\
 	--extra=+f --c-kinds=+px                                \
-- 
cgit 


From 8a39df8faa1cb130f136d5e404332c16fbb936c0 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 22 Oct 2013 10:34:15 +0300
Subject: perf sched: Make struct perf_sched sched a local variable

Change "struct perf_sched sched" from being global to being local.

The build slowdown cured by f36f83f947ed is dealt with in the following
patch, by programatically setting perf_sched.curr_pid.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1382427258-17495-12-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-sched.c | 41 ++++++++++++++++++++---------------------
 1 file changed, 20 insertions(+), 21 deletions(-)

diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 5a46b102eb08..5a338566195e 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1655,29 +1655,28 @@ static int __cmd_record(int argc, const char **argv)
 	return cmd_record(i, rec_argv, NULL);
 }
 
-static const char default_sort_order[] = "avg, max, switch, runtime";
-static struct perf_sched sched = {
-	.tool = {
-		.sample		 = perf_sched__process_tracepoint_sample,
-		.comm		 = perf_event__process_comm,
-		.lost		 = perf_event__process_lost,
-		.fork		 = perf_sched__process_fork_event,
-		.ordered_samples = true,
-	},
-	.cmp_pid	      = LIST_HEAD_INIT(sched.cmp_pid),
-	.sort_list	      = LIST_HEAD_INIT(sched.sort_list),
-	.start_work_mutex     = PTHREAD_MUTEX_INITIALIZER,
-	.work_done_wait_mutex = PTHREAD_MUTEX_INITIALIZER,
-	.curr_pid	      = { [0 ... MAX_CPUS - 1] = -1 },
-	.sort_order	      = default_sort_order,
-	.replay_repeat	      = 10,
-	.profile_cpu	      = -1,
-	.next_shortname1      = 'A',
-	.next_shortname2      = '0',
-};
-
 int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused)
 {
+	const char default_sort_order[] = "avg, max, switch, runtime";
+	struct perf_sched sched = {
+		.tool = {
+			.sample		 = perf_sched__process_tracepoint_sample,
+			.comm		 = perf_event__process_comm,
+			.lost		 = perf_event__process_lost,
+			.fork		 = perf_sched__process_fork_event,
+			.ordered_samples = true,
+		},
+		.cmp_pid	      = LIST_HEAD_INIT(sched.cmp_pid),
+		.sort_list	      = LIST_HEAD_INIT(sched.sort_list),
+		.start_work_mutex     = PTHREAD_MUTEX_INITIALIZER,
+		.work_done_wait_mutex = PTHREAD_MUTEX_INITIALIZER,
+		.curr_pid	      = { [0 ... MAX_CPUS - 1] = -1 },
+		.sort_order	      = default_sort_order,
+		.replay_repeat	      = 10,
+		.profile_cpu	      = -1,
+		.next_shortname1      = 'A',
+		.next_shortname2      = '0',
+	};
 	const struct option latency_options[] = {
 	OPT_STRING('s', "sort", &sched.sort_order, "key[,key2...]",
 		   "sort by key(s): runtime, switch, avg, max"),
-- 
cgit 


From 156a2b022907687f28c72d1ba601015f295cd99e Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 22 Oct 2013 10:34:16 +0300
Subject: perf sched: Optimize build time

builtin-sched.c took a log time to build with -O6 optimization. This
turned out to be caused by:

	.curr_pid = { [0 ... MAX_CPUS - 1] = -1 },

Fix by initializing curr_pid programmatically.

This addresses the problem cured in f36f83f947ed using a smaller hammer.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1382427258-17495-13-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-sched.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 5a338566195e..ddb5dc15be17 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1670,7 +1670,6 @@ int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused)
 		.sort_list	      = LIST_HEAD_INIT(sched.sort_list),
 		.start_work_mutex     = PTHREAD_MUTEX_INITIALIZER,
 		.work_done_wait_mutex = PTHREAD_MUTEX_INITIALIZER,
-		.curr_pid	      = { [0 ... MAX_CPUS - 1] = -1 },
 		.sort_order	      = default_sort_order,
 		.replay_repeat	      = 10,
 		.profile_cpu	      = -1,
@@ -1732,6 +1731,10 @@ int cmd_sched(int argc, const char **argv, const char *prefix __maybe_unused)
 		.switch_event	    = replay_switch_event,
 		.fork_event	    = replay_fork_event,
 	};
+	unsigned int i;
+
+	for (i = 0; i < ARRAY_SIZE(sched.curr_pid); i++)
+		sched.curr_pid[i] = -1;
 
 	argc = parse_options(argc, argv, sched_options, sched_usage,
 			     PARSE_OPT_STOP_AT_NON_OPTION);
-- 
cgit 


From 6f3e5eda9d6cc74538430d8f9e8e4baa01249160 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 22 Oct 2013 10:34:07 +0300
Subject: perf script: Make perf_script a local variable

Change perf_script from being global to being local.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1382427258-17495-4-git-send-email-adrian.hunter@intel.com
[ Made the minor consistency changes suggested by David Ahern ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-script.c | 40 ++++++++++++++++++++++++----------------
 1 file changed, 24 insertions(+), 16 deletions(-)

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 27de6068049d..0ae88c2538a1 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -542,18 +542,9 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
 	return 0;
 }
 
-static struct perf_tool perf_script = {
-	.sample		 = process_sample_event,
-	.mmap		 = perf_event__process_mmap,
-	.mmap2		 = perf_event__process_mmap2,
-	.comm		 = perf_event__process_comm,
-	.exit		 = perf_event__process_exit,
-	.fork		 = perf_event__process_fork,
-	.attr		 = perf_event__process_attr,
-	.tracing_data	 = perf_event__process_tracing_data,
-	.build_id	 = perf_event__process_build_id,
-	.ordered_samples = true,
-	.ordering_requires_timestamps = true,
+struct perf_script {
+	struct perf_tool	tool;
+	struct perf_session	*session;
 };
 
 static void sig_handler(int sig __maybe_unused)
@@ -561,13 +552,13 @@ static void sig_handler(int sig __maybe_unused)
 	session_done = 1;
 }
 
-static int __cmd_script(struct perf_session *session)
+static int __cmd_script(struct perf_script *script)
 {
 	int ret;
 
 	signal(SIGINT, sig_handler);
 
-	ret = perf_session__process_events(session, &perf_script);
+	ret = perf_session__process_events(script->session, &script->tool);
 
 	if (debug_mode)
 		pr_err("Misordered timestamps: %" PRIu64 "\n", nr_unordered);
@@ -1273,6 +1264,21 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
 	char *script_path = NULL;
 	const char **__argv;
 	int i, j, err;
+	struct perf_script script = {
+		.tool = {
+			.sample		 = process_sample_event,
+			.mmap		 = perf_event__process_mmap,
+			.mmap2		 = perf_event__process_mmap2,
+			.comm		 = perf_event__process_comm,
+			.exit		 = perf_event__process_exit,
+			.fork		 = perf_event__process_fork,
+			.attr		 = perf_event__process_attr,
+			.tracing_data	 = perf_event__process_tracing_data,
+			.build_id	 = perf_event__process_build_id,
+			.ordered_samples = true,
+			.ordering_requires_timestamps = true,
+		},
+	};
 	const struct option options[] = {
 	OPT_BOOLEAN('D', "dump-raw-trace", &dump_trace,
 		    "dump raw trace in ASCII"),
@@ -1498,10 +1504,12 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
 	if (!script_name)
 		setup_pager();
 
-	session = perf_session__new(&file, false, &perf_script);
+	session = perf_session__new(&file, false, &script.tool);
 	if (session == NULL)
 		return -ENOMEM;
 
+	script.session = session;
+
 	if (cpu_list) {
 		if (perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap))
 			return -1;
@@ -1565,7 +1573,7 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
 	if (err < 0)
 		goto out;
 
-	err = __cmd_script(session);
+	err = __cmd_script(&script);
 
 	perf_session__delete(session);
 	cleanup_scripting();
-- 
cgit 


From 0538f7599157b7bdef1814472048de5351c4fd6d Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Mon, 2 Sep 2013 12:15:01 +0200
Subject: batman-adv: make struct batadv_neigh_node algorithm agnostic

some of the fields in struct batadv_neigh_node are strictly
related to the B.A.T.M.A.N. IV algorithm. In order to
make the struct usable by any routing algorithm it has to be
split and made more generic

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/bat_iv_ogm.c        | 60 +++++++++++++++++++++-----------------
 net/batman-adv/gateway_client.c    | 16 +++++-----
 net/batman-adv/network-coding.c    |  8 +++--
 net/batman-adv/originator.c        | 33 ++++++++++++++-------
 net/batman-adv/originator.h        |  3 +-
 net/batman-adv/routing.c           |  9 ++++--
 net/batman-adv/translation-table.c |  4 +--
 net/batman-adv/types.h             | 41 ++++++++++++++++----------
 8 files changed, 103 insertions(+), 71 deletions(-)

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 97b42d3c4bef..a2a04982a22b 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -93,16 +93,18 @@ batadv_iv_ogm_neigh_new(struct batadv_hard_iface *hard_iface,
 			struct batadv_orig_node *orig_node,
 			struct batadv_orig_node *orig_neigh)
 {
+	struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
 	struct batadv_neigh_node *neigh_node;
 
-	neigh_node = batadv_neigh_node_new(hard_iface, neigh_addr);
+	neigh_node = batadv_neigh_node_new(hard_iface, neigh_addr, orig_node);
 	if (!neigh_node)
 		goto out;
 
-	INIT_LIST_HEAD(&neigh_node->bonding_list);
+	spin_lock_init(&neigh_node->bat_iv.lq_update_lock);
 
-	neigh_node->orig_node = orig_neigh;
-	neigh_node->if_incoming = hard_iface;
+	batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+		   "Creating new neighbor %pM for orig_node %pM on interface %s\n",
+		   neigh_addr, orig_node->orig, hard_iface->net_dev->name);
 
 	spin_lock_bh(&orig_node->neigh_list_lock);
 	hlist_add_head_rcu(&neigh_node->list, &orig_node->neigh_list);
@@ -755,12 +757,12 @@ batadv_iv_ogm_orig_update(struct batadv_priv *bat_priv,
 		if (dup_status != BATADV_NO_DUP)
 			continue;
 
-		spin_lock_bh(&tmp_neigh_node->lq_update_lock);
-		batadv_ring_buffer_set(tmp_neigh_node->tq_recv,
-				       &tmp_neigh_node->tq_index, 0);
-		tq_avg = batadv_ring_buffer_avg(tmp_neigh_node->tq_recv);
-		tmp_neigh_node->tq_avg = tq_avg;
-		spin_unlock_bh(&tmp_neigh_node->lq_update_lock);
+		spin_lock_bh(&tmp_neigh_node->bat_iv.lq_update_lock);
+		batadv_ring_buffer_set(tmp_neigh_node->bat_iv.tq_recv,
+				       &tmp_neigh_node->bat_iv.tq_index, 0);
+		tq_avg = batadv_ring_buffer_avg(tmp_neigh_node->bat_iv.tq_recv);
+		tmp_neigh_node->bat_iv.tq_avg = tq_avg;
+		spin_unlock_bh(&tmp_neigh_node->bat_iv.lq_update_lock);
 	}
 
 	if (!neigh_node) {
@@ -785,12 +787,13 @@ batadv_iv_ogm_orig_update(struct batadv_priv *bat_priv,
 
 	neigh_node->last_seen = jiffies;
 
-	spin_lock_bh(&neigh_node->lq_update_lock);
-	batadv_ring_buffer_set(neigh_node->tq_recv,
-			       &neigh_node->tq_index,
+	spin_lock_bh(&neigh_node->bat_iv.lq_update_lock);
+	batadv_ring_buffer_set(neigh_node->bat_iv.tq_recv,
+			       &neigh_node->bat_iv.tq_index,
 			       batadv_ogm_packet->tq);
-	neigh_node->tq_avg = batadv_ring_buffer_avg(neigh_node->tq_recv);
-	spin_unlock_bh(&neigh_node->lq_update_lock);
+	tq_avg = batadv_ring_buffer_avg(neigh_node->bat_iv.tq_recv);
+	neigh_node->bat_iv.tq_avg = tq_avg;
+	spin_unlock_bh(&neigh_node->bat_iv.lq_update_lock);
 
 	if (dup_status == BATADV_NO_DUP) {
 		orig_node->last_ttl = batadv_ogm_packet->header.ttl;
@@ -807,13 +810,13 @@ batadv_iv_ogm_orig_update(struct batadv_priv *bat_priv,
 		goto out;
 
 	/* if this neighbor does not offer a better TQ we won't consider it */
-	if (router && (router->tq_avg > neigh_node->tq_avg))
+	if (router && (router->bat_iv.tq_avg > neigh_node->bat_iv.tq_avg))
 		goto out;
 
 	/* if the TQ is the same and the link not more symmetric we
 	 * won't consider it either
 	 */
-	if (router && (neigh_node->tq_avg == router->tq_avg)) {
+	if (router && (neigh_node->bat_iv.tq_avg == router->bat_iv.tq_avg)) {
 		orig_node_tmp = router->orig_node;
 		spin_lock_bh(&orig_node_tmp->ogm_cnt_lock);
 		if_num = router->if_incoming->if_num;
@@ -892,7 +895,7 @@ static int batadv_iv_ogm_calc_tq(struct batadv_orig_node *orig_node,
 	/* find packet count of corresponding one hop neighbor */
 	spin_lock_bh(&orig_node->ogm_cnt_lock);
 	orig_eq_count = orig_neigh_node->bcast_own_sum[if_incoming->if_num];
-	neigh_rq_count = neigh_node->real_packet_count;
+	neigh_rq_count = neigh_node->bat_iv.real_packet_count;
 	spin_unlock_bh(&orig_node->ogm_cnt_lock);
 
 	/* pay attention to not get a value bigger than 100 % */
@@ -975,6 +978,7 @@ batadv_iv_ogm_update_seqnos(const struct ethhdr *ethhdr,
 	uint32_t seqno = ntohl(batadv_ogm_packet->seqno);
 	uint8_t *neigh_addr;
 	uint8_t packet_count;
+	unsigned long *bitmap;
 
 	orig_node = batadv_get_orig_node(bat_priv, batadv_ogm_packet->orig);
 	if (!orig_node)
@@ -995,7 +999,7 @@ batadv_iv_ogm_update_seqnos(const struct ethhdr *ethhdr,
 	hlist_for_each_entry_rcu(tmp_neigh_node,
 				 &orig_node->neigh_list, list) {
 		neigh_addr = tmp_neigh_node->addr;
-		is_dup = batadv_test_bit(tmp_neigh_node->real_bits,
+		is_dup = batadv_test_bit(tmp_neigh_node->bat_iv.real_bits,
 					 orig_node->last_real_seqno,
 					 seqno);
 
@@ -1011,13 +1015,13 @@ batadv_iv_ogm_update_seqnos(const struct ethhdr *ethhdr,
 		}
 
 		/* if the window moved, set the update flag. */
-		need_update |= batadv_bit_get_packet(bat_priv,
-						     tmp_neigh_node->real_bits,
+		bitmap = tmp_neigh_node->bat_iv.real_bits;
+		need_update |= batadv_bit_get_packet(bat_priv, bitmap,
 						     seq_diff, set_mark);
 
-		packet_count = bitmap_weight(tmp_neigh_node->real_bits,
+		packet_count = bitmap_weight(tmp_neigh_node->bat_iv.real_bits,
 					     BATADV_TQ_LOCAL_WINDOW_SIZE);
-		tmp_neigh_node->real_packet_count = packet_count;
+		tmp_neigh_node->bat_iv.real_packet_count = packet_count;
 	}
 	rcu_read_unlock();
 
@@ -1041,7 +1045,7 @@ static void batadv_iv_ogm_process(const struct ethhdr *ethhdr,
 {
 	struct batadv_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
 	struct batadv_hard_iface *hard_iface;
-	struct batadv_orig_node *orig_neigh_node, *orig_node;
+	struct batadv_orig_node *orig_neigh_node, *orig_node, *orig_node_tmp;
 	struct batadv_neigh_node *router = NULL, *router_router = NULL;
 	struct batadv_neigh_node *orig_neigh_router = NULL;
 	int has_directlink_flag;
@@ -1192,10 +1196,12 @@ static void batadv_iv_ogm_process(const struct ethhdr *ethhdr,
 	}
 
 	router = batadv_orig_node_get_router(orig_node);
-	if (router)
-		router_router = batadv_orig_node_get_router(router->orig_node);
+	if (router) {
+		orig_node_tmp = router->orig_node;
+		router_router = batadv_orig_node_get_router(orig_node_tmp);
+	}
 
-	if ((router && router->tq_avg != 0) &&
+	if ((router && router->bat_iv.tq_avg != 0) &&
 	    (batadv_compare_eth(router->addr, ethhdr->h_source)))
 		is_from_best_next_hop = true;
 
diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index 20fa053b7f57..2449afaa7638 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -137,7 +137,7 @@ batadv_gw_get_best_gw_node(struct batadv_priv *bat_priv)
 		if (!atomic_inc_not_zero(&gw_node->refcount))
 			goto next;
 
-		tq_avg = router->tq_avg;
+		tq_avg = router->bat_iv.tq_avg;
 
 		switch (atomic_read(&bat_priv->gw_sel_class)) {
 		case 1: /* fast connection */
@@ -256,7 +256,7 @@ void batadv_gw_election(struct batadv_priv *bat_priv)
 			   next_gw->bandwidth_down / 10,
 			   next_gw->bandwidth_down % 10,
 			   next_gw->bandwidth_up / 10,
-			   next_gw->bandwidth_up % 10, router->tq_avg);
+			   next_gw->bandwidth_up % 10, router->bat_iv.tq_avg);
 		batadv_throw_uevent(bat_priv, BATADV_UEV_GW, BATADV_UEV_ADD,
 				    gw_addr);
 	} else {
@@ -266,7 +266,7 @@ void batadv_gw_election(struct batadv_priv *bat_priv)
 			   next_gw->bandwidth_down / 10,
 			   next_gw->bandwidth_down % 10,
 			   next_gw->bandwidth_up / 10,
-			   next_gw->bandwidth_up % 10, router->tq_avg);
+			   next_gw->bandwidth_up % 10, router->bat_iv.tq_avg);
 		batadv_throw_uevent(bat_priv, BATADV_UEV_GW, BATADV_UEV_CHANGE,
 				    gw_addr);
 	}
@@ -305,8 +305,8 @@ void batadv_gw_check_election(struct batadv_priv *bat_priv,
 	if (!router_orig)
 		goto out;
 
-	gw_tq_avg = router_gw->tq_avg;
-	orig_tq_avg = router_orig->tq_avg;
+	gw_tq_avg = router_gw->bat_iv.tq_avg;
+	orig_tq_avg = router_orig->bat_iv.tq_avg;
 
 	/* the TQ value has to be better */
 	if (orig_tq_avg < gw_tq_avg)
@@ -528,7 +528,7 @@ static int batadv_write_buffer_text(struct batadv_priv *bat_priv,
 	ret = seq_printf(seq, "%s %pM (%3i) %pM [%10s]: %u.%u/%u.%u MBit\n",
 			 (curr_gw == gw_node ? "=>" : "  "),
 			 gw_node->orig_node->orig,
-			 router->tq_avg, router->addr,
+			 router->bat_iv.tq_avg, router->addr,
 			 router->if_incoming->net_dev->name,
 			 gw_node->bandwidth_down / 10,
 			 gw_node->bandwidth_down % 10,
@@ -792,7 +792,7 @@ bool batadv_gw_out_of_range(struct batadv_priv *bat_priv,
 		if (!neigh_curr)
 			goto out;
 
-		curr_tq_avg = neigh_curr->tq_avg;
+		curr_tq_avg = neigh_curr->bat_iv.tq_avg;
 		break;
 	case BATADV_GW_MODE_OFF:
 	default:
@@ -803,7 +803,7 @@ bool batadv_gw_out_of_range(struct batadv_priv *bat_priv,
 	if (!neigh_old)
 		goto out;
 
-	if (curr_tq_avg - neigh_old->tq_avg > BATADV_GW_THRESHOLD)
+	if (curr_tq_avg - neigh_old->bat_iv.tq_avg > BATADV_GW_THRESHOLD)
 		out_of_range = true;
 
 out:
diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c
index 23f611bedb0f..351e199bc0af 100644
--- a/net/batman-adv/network-coding.c
+++ b/net/batman-adv/network-coding.c
@@ -1003,7 +1003,7 @@ static bool batadv_nc_code_packets(struct batadv_priv *bat_priv,
 				   struct batadv_nc_packet *nc_packet,
 				   struct batadv_neigh_node *neigh_node)
 {
-	uint8_t tq_weighted_neigh, tq_weighted_coding;
+	uint8_t tq_weighted_neigh, tq_weighted_coding, tq_tmp;
 	struct sk_buff *skb_dest, *skb_src;
 	struct batadv_unicast_packet *packet1;
 	struct batadv_unicast_packet *packet2;
@@ -1028,8 +1028,10 @@ static bool batadv_nc_code_packets(struct batadv_priv *bat_priv,
 	if (!router_coding)
 		goto out;
 
-	tq_weighted_neigh = batadv_nc_random_weight_tq(router_neigh->tq_avg);
-	tq_weighted_coding = batadv_nc_random_weight_tq(router_coding->tq_avg);
+	tq_tmp = batadv_nc_random_weight_tq(router_neigh->bat_iv.tq_avg);
+	tq_weighted_neigh = tq_tmp;
+	tq_tmp = batadv_nc_random_weight_tq(router_coding->bat_iv.tq_avg);
+	tq_weighted_coding = tq_tmp;
 
 	/* Select one destination for the MAC-header dst-field based on
 	 * weighted TQ-values.
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index ee1d84724205..50f6d9964780 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -172,11 +172,20 @@ batadv_orig_node_get_router(struct batadv_orig_node *orig_node)
 	return router;
 }
 
+/**
+ * batadv_neigh_node_new - create and init a new neigh_node object
+ * @hard_iface: the interface where the neighbour is connected to
+ * @neigh_addr: the mac address of the neighbour interface
+ * @orig_node: originator object representing the neighbour
+ *
+ * Allocates a new neigh_node object and initialises all the generic fields.
+ * Returns the new object or NULL on failure.
+ */
 struct batadv_neigh_node *
 batadv_neigh_node_new(struct batadv_hard_iface *hard_iface,
-		      const uint8_t *neigh_addr)
+		      const uint8_t *neigh_addr,
+		      struct batadv_orig_node *orig_node)
 {
-	struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
 	struct batadv_neigh_node *neigh_node;
 
 	neigh_node = kzalloc(sizeof(*neigh_node), GFP_ATOMIC);
@@ -186,15 +195,14 @@ batadv_neigh_node_new(struct batadv_hard_iface *hard_iface,
 	INIT_HLIST_NODE(&neigh_node->list);
 
 	memcpy(neigh_node->addr, neigh_addr, ETH_ALEN);
-	spin_lock_init(&neigh_node->lq_update_lock);
+	neigh_node->if_incoming = hard_iface;
+	neigh_node->orig_node = orig_node;
+
+	INIT_LIST_HEAD(&neigh_node->bonding_list);
 
 	/* extra reference for return */
 	atomic_set(&neigh_node->refcount, 2);
 
-	batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
-		   "Creating new neighbor %pM on interface %s\n", neigh_addr,
-		   hard_iface->net_dev->name);
-
 out:
 	return neigh_node;
 }
@@ -401,6 +409,7 @@ batadv_purge_orig_neighbors(struct batadv_priv *bat_priv,
 	bool neigh_purged = false;
 	unsigned long last_seen;
 	struct batadv_hard_iface *if_incoming;
+	uint8_t best_metric = 0;
 
 	*best_neigh_node = NULL;
 
@@ -436,8 +445,10 @@ batadv_purge_orig_neighbors(struct batadv_priv *bat_priv,
 			batadv_neigh_node_free_ref(neigh_node);
 		} else {
 			if ((!*best_neigh_node) ||
-			    (neigh_node->tq_avg > (*best_neigh_node)->tq_avg))
+			    (neigh_node->bat_iv.tq_avg > best_metric)) {
 				*best_neigh_node = neigh_node;
+				best_metric = neigh_node->bat_iv.tq_avg;
+			}
 		}
 	}
 
@@ -557,7 +568,7 @@ int batadv_orig_seq_print_text(struct seq_file *seq, void *offset)
 			if (!neigh_node)
 				continue;
 
-			if (neigh_node->tq_avg == 0)
+			if (neigh_node->bat_iv.tq_avg == 0)
 				goto next;
 
 			last_seen_jiffies = jiffies - orig_node->last_seen;
@@ -567,7 +578,7 @@ int batadv_orig_seq_print_text(struct seq_file *seq, void *offset)
 
 			seq_printf(seq, "%pM %4i.%03is   (%3i) %pM [%10s]:",
 				   orig_node->orig, last_seen_secs,
-				   last_seen_msecs, neigh_node->tq_avg,
+				   last_seen_msecs, neigh_node->bat_iv.tq_avg,
 				   neigh_node->addr,
 				   neigh_node->if_incoming->net_dev->name);
 
@@ -575,7 +586,7 @@ int batadv_orig_seq_print_text(struct seq_file *seq, void *offset)
 						 &orig_node->neigh_list, list) {
 				seq_printf(seq, " %pM (%3i)",
 					   neigh_node_tmp->addr,
-					   neigh_node_tmp->tq_avg);
+					   neigh_node_tmp->bat_iv.tq_avg);
 			}
 
 			seq_puts(seq, "\n");
diff --git a/net/batman-adv/originator.h b/net/batman-adv/originator.h
index cc6d686cfe6d..06e5a6809dd7 100644
--- a/net/batman-adv/originator.h
+++ b/net/batman-adv/originator.h
@@ -31,7 +31,8 @@ struct batadv_orig_node *batadv_get_orig_node(struct batadv_priv *bat_priv,
 					      const uint8_t *addr);
 struct batadv_neigh_node *
 batadv_neigh_node_new(struct batadv_hard_iface *hard_iface,
-		      const uint8_t *neigh_addr);
+		      const uint8_t *neigh_addr,
+		      struct batadv_orig_node *orig_node);
 void batadv_neigh_node_free_ref(struct batadv_neigh_node *neigh_node);
 struct batadv_neigh_node *
 batadv_orig_node_get_router(struct batadv_orig_node *orig_node);
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 4bcf22129ffe..5b78a71c1b02 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -119,7 +119,7 @@ void batadv_bonding_candidate_add(struct batadv_orig_node *orig_node,
 				  struct batadv_neigh_node *neigh_node)
 {
 	struct batadv_neigh_node *tmp_neigh_node, *router = NULL;
-	uint8_t interference_candidate = 0;
+	uint8_t interference_candidate = 0, tq;
 
 	spin_lock_bh(&orig_node->neigh_list_lock);
 
@@ -132,8 +132,10 @@ void batadv_bonding_candidate_add(struct batadv_orig_node *orig_node,
 	if (!router)
 		goto candidate_del;
 
+
 	/* ... and is good enough to be considered */
-	if (neigh_node->tq_avg < router->tq_avg - BATADV_BONDING_TQ_THRESHOLD)
+	tq = router->bat_iv.tq_avg - BATADV_BONDING_TQ_THRESHOLD;
+	if (neigh_node->bat_iv.tq_avg < tq)
 		goto candidate_del;
 
 	/* check if we have another candidate with the same mac address or
@@ -502,7 +504,8 @@ batadv_find_ifalter_router(struct batadv_orig_node *primary_orig,
 		if (tmp_neigh_node->if_incoming == recv_if)
 			continue;
 
-		if (router && tmp_neigh_node->tq_avg <= router->tq_avg)
+		if (router &&
+		    tmp_neigh_node->bat_iv.tq_avg <= router->bat_iv.tq_avg)
 			continue;
 
 		if (!atomic_inc_not_zero(&tmp_neigh_node->refcount))
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 7731eaed737d..1d5a4f5be899 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -1299,9 +1299,9 @@ batadv_transtable_best_orig(struct batadv_tt_global_entry *tt_global_entry)
 		if (!router)
 			continue;
 
-		if (router->tq_avg > best_tq) {
+		if (router->bat_iv.tq_avg > best_tq) {
 			best_entry = orig_entry;
-			best_tq = router->tq_avg;
+			best_tq = router->bat_iv.tq_avg;
 		}
 
 		batadv_neigh_node_free_ref(router);
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index ff53933b5a59..a3213343a181 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -263,40 +263,49 @@ struct batadv_gw_node {
 };
 
 /**
- * struct batadv_neigh_node - structure for single hop neighbors
- * @list: list node for batadv_orig_node::neigh_list
- * @addr: mac address of neigh node
+ * struct batadv_neigh_bat_iv - B.A.T.M.A.N. IV specific structure for single
+ *  hop neighbors
  * @tq_recv: ring buffer of received TQ values from this neigh node
  * @tq_index: ring buffer index
  * @tq_avg: averaged tq of all tq values in the ring buffer (tq_recv)
- * @last_ttl: last received ttl from this neigh node
- * @bonding_list: list node for batadv_orig_node::bond_list
- * @last_seen: when last packet via this neighbor was received
  * @real_bits: bitfield containing the number of OGMs received from this neigh
  *  node (relative to orig_node->last_real_seqno)
  * @real_packet_count: counted result of real_bits
+ * @lq_update_lock: lock protecting tq_recv & tq_index
+ */
+struct batadv_neigh_bat_iv {
+	uint8_t tq_recv[BATADV_TQ_GLOBAL_WINDOW_SIZE];
+	uint8_t tq_index;
+	uint8_t tq_avg;
+	DECLARE_BITMAP(real_bits, BATADV_TQ_LOCAL_WINDOW_SIZE);
+	uint8_t real_packet_count;
+	spinlock_t lq_update_lock; /* protects tq_recv & tq_index */
+};
+
+/**
+ * struct batadv_neigh_node - structure for single hops neighbors
+ * @list: list node for batadv_orig_node::neigh_list
  * @orig_node: pointer to corresponding orig_node
+ * @addr: the MAC address of the neighboring interface
  * @if_incoming: pointer to incoming hard interface
- * @lq_update_lock: lock protecting tq_recv & tq_index
+ * @last_seen: when last packet via this neighbor was received
+ * @last_ttl: last received ttl from this neigh node
+ * @bonding_list: list node for batadv_orig_node::bond_list
  * @refcount: number of contexts the object is used
  * @rcu: struct used for freeing in an RCU-safe manner
+ * @bat_iv: B.A.T.M.A.N. IV private structure
  */
 struct batadv_neigh_node {
 	struct hlist_node list;
+	struct batadv_orig_node *orig_node;
 	uint8_t addr[ETH_ALEN];
-	uint8_t tq_recv[BATADV_TQ_GLOBAL_WINDOW_SIZE];
-	uint8_t tq_index;
-	uint8_t tq_avg;
+	struct batadv_hard_iface *if_incoming;
+	unsigned long last_seen;
 	uint8_t last_ttl;
 	struct list_head bonding_list;
-	unsigned long last_seen;
-	DECLARE_BITMAP(real_bits, BATADV_TQ_LOCAL_WINDOW_SIZE);
-	uint8_t real_packet_count;
-	struct batadv_orig_node *orig_node;
-	struct batadv_hard_iface *if_incoming;
-	spinlock_t lq_update_lock; /* protects tq_recv & tq_index */
 	atomic_t refcount;
 	struct rcu_head rcu;
+	struct batadv_neigh_bat_iv bat_iv;
 };
 
 /**
-- 
cgit 


From bbad0a5e3691cb3976d7a4815c47d9b7bb244731 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Mon, 2 Sep 2013 12:15:02 +0200
Subject: batman-adv: make struct batadv_orig_node algorithm agnostic

some of the struct batadv_orig_node members are B.A.T.M.A.N. IV
specific and therefore they are moved in a algorithm specific
substruct in order to make batadv_orig_node routing algorithm
agnostic

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/bat_iv_ogm.c | 108 +++++++++++++++++++++++++++++++++-----------
 net/batman-adv/originator.c |  89 ++++++++++++++----------------------
 net/batman-adv/originator.h |   3 +-
 net/batman-adv/types.h      |  30 +++++++-----
 4 files changed, 135 insertions(+), 95 deletions(-)

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index a2a04982a22b..0b1343dde5d2 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -87,6 +87,57 @@ static uint8_t batadv_ring_buffer_avg(const uint8_t lq_recv[])
 	return (uint8_t)(sum / count);
 }
 
+/**
+ * batadv_iv_ogm_orig_get - retrieve or create (if does not exist) an originator
+ * @bat_priv: the bat priv with all the soft interface information
+ * @addr: mac address of the originator
+ *
+ * Returns the originator object corresponding to the passed mac address or NULL
+ * on failure.
+ * If the object does not exists it is created an initialised.
+ */
+static struct batadv_orig_node *
+batadv_iv_ogm_orig_get(struct batadv_priv *bat_priv, const uint8_t *addr)
+{
+	struct batadv_orig_node *orig_node;
+	int size, hash_added;
+
+	orig_node = batadv_orig_hash_find(bat_priv, addr);
+	if (orig_node)
+		return orig_node;
+
+	orig_node = batadv_orig_node_new(bat_priv, addr);
+	if (!orig_node)
+		return NULL;
+
+	spin_lock_init(&orig_node->bat_iv.ogm_cnt_lock);
+
+	size = bat_priv->num_ifaces * sizeof(unsigned long) * BATADV_NUM_WORDS;
+	orig_node->bat_iv.bcast_own = kzalloc(size, GFP_ATOMIC);
+	if (!orig_node->bat_iv.bcast_own)
+		goto free_orig_node;
+
+	size = bat_priv->num_ifaces * sizeof(uint8_t);
+	orig_node->bat_iv.bcast_own_sum = kzalloc(size, GFP_ATOMIC);
+	if (!orig_node->bat_iv.bcast_own_sum)
+		goto free_bcast_own;
+
+	hash_added = batadv_hash_add(bat_priv->orig_hash, batadv_compare_orig,
+				     batadv_choose_orig, orig_node,
+				     &orig_node->hash_entry);
+	if (hash_added != 0)
+		goto free_bcast_own;
+
+	return orig_node;
+
+free_bcast_own:
+	kfree(orig_node->bat_iv.bcast_own);
+free_orig_node:
+	batadv_orig_node_free_ref(orig_node);
+
+	return NULL;
+}
+
 static struct batadv_neigh_node *
 batadv_iv_ogm_neigh_new(struct batadv_hard_iface *hard_iface,
 			const uint8_t *neigh_addr,
@@ -663,20 +714,22 @@ batadv_iv_ogm_slide_own_bcast_window(struct batadv_hard_iface *hard_iface)
 	uint32_t i;
 	size_t word_index;
 	uint8_t *w;
+	int if_num;
 
 	for (i = 0; i < hash->size; i++) {
 		head = &hash->table[i];
 
 		rcu_read_lock();
 		hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
-			spin_lock_bh(&orig_node->ogm_cnt_lock);
+			spin_lock_bh(&orig_node->bat_iv.ogm_cnt_lock);
 			word_index = hard_iface->if_num * BATADV_NUM_WORDS;
-			word = &(orig_node->bcast_own[word_index]);
+			word = &(orig_node->bat_iv.bcast_own[word_index]);
 
 			batadv_bit_get_packet(bat_priv, word, 1, 0);
-			w = &orig_node->bcast_own_sum[hard_iface->if_num];
+			if_num = hard_iface->if_num;
+			w = &orig_node->bat_iv.bcast_own_sum[if_num];
 			*w = bitmap_weight(word, BATADV_TQ_LOCAL_WINDOW_SIZE);
-			spin_unlock_bh(&orig_node->ogm_cnt_lock);
+			spin_unlock_bh(&orig_node->bat_iv.ogm_cnt_lock);
 		}
 		rcu_read_unlock();
 	}
@@ -768,7 +821,7 @@ batadv_iv_ogm_orig_update(struct batadv_priv *bat_priv,
 	if (!neigh_node) {
 		struct batadv_orig_node *orig_tmp;
 
-		orig_tmp = batadv_get_orig_node(bat_priv, ethhdr->h_source);
+		orig_tmp = batadv_iv_ogm_orig_get(bat_priv, ethhdr->h_source);
 		if (!orig_tmp)
 			goto unlock;
 
@@ -818,16 +871,16 @@ batadv_iv_ogm_orig_update(struct batadv_priv *bat_priv,
 	 */
 	if (router && (neigh_node->bat_iv.tq_avg == router->bat_iv.tq_avg)) {
 		orig_node_tmp = router->orig_node;
-		spin_lock_bh(&orig_node_tmp->ogm_cnt_lock);
+		spin_lock_bh(&orig_node_tmp->bat_iv.ogm_cnt_lock);
 		if_num = router->if_incoming->if_num;
-		sum_orig = orig_node_tmp->bcast_own_sum[if_num];
-		spin_unlock_bh(&orig_node_tmp->ogm_cnt_lock);
+		sum_orig = orig_node_tmp->bat_iv.bcast_own_sum[if_num];
+		spin_unlock_bh(&orig_node_tmp->bat_iv.ogm_cnt_lock);
 
 		orig_node_tmp = neigh_node->orig_node;
-		spin_lock_bh(&orig_node_tmp->ogm_cnt_lock);
+		spin_lock_bh(&orig_node_tmp->bat_iv.ogm_cnt_lock);
 		if_num = neigh_node->if_incoming->if_num;
-		sum_neigh = orig_node_tmp->bcast_own_sum[if_num];
-		spin_unlock_bh(&orig_node_tmp->ogm_cnt_lock);
+		sum_neigh = orig_node_tmp->bat_iv.bcast_own_sum[if_num];
+		spin_unlock_bh(&orig_node_tmp->bat_iv.ogm_cnt_lock);
 
 		if (sum_orig >= sum_neigh)
 			goto out;
@@ -855,7 +908,7 @@ static int batadv_iv_ogm_calc_tq(struct batadv_orig_node *orig_node,
 	uint8_t total_count;
 	uint8_t orig_eq_count, neigh_rq_count, neigh_rq_inv, tq_own;
 	unsigned int neigh_rq_inv_cube, neigh_rq_max_cube;
-	int tq_asym_penalty, inv_asym_penalty, ret = 0;
+	int tq_asym_penalty, inv_asym_penalty, if_num, ret = 0;
 	unsigned int combined_tq;
 
 	/* find corresponding one hop neighbor */
@@ -893,10 +946,11 @@ static int batadv_iv_ogm_calc_tq(struct batadv_orig_node *orig_node,
 	orig_node->last_seen = jiffies;
 
 	/* find packet count of corresponding one hop neighbor */
-	spin_lock_bh(&orig_node->ogm_cnt_lock);
-	orig_eq_count = orig_neigh_node->bcast_own_sum[if_incoming->if_num];
+	spin_lock_bh(&orig_node->bat_iv.ogm_cnt_lock);
+	if_num = if_incoming->if_num;
+	orig_eq_count = orig_neigh_node->bat_iv.bcast_own_sum[if_num];
 	neigh_rq_count = neigh_node->bat_iv.real_packet_count;
-	spin_unlock_bh(&orig_node->ogm_cnt_lock);
+	spin_unlock_bh(&orig_node->bat_iv.ogm_cnt_lock);
 
 	/* pay attention to not get a value bigger than 100 % */
 	if (orig_eq_count > neigh_rq_count)
@@ -980,11 +1034,11 @@ batadv_iv_ogm_update_seqnos(const struct ethhdr *ethhdr,
 	uint8_t packet_count;
 	unsigned long *bitmap;
 
-	orig_node = batadv_get_orig_node(bat_priv, batadv_ogm_packet->orig);
+	orig_node = batadv_iv_ogm_orig_get(bat_priv, batadv_ogm_packet->orig);
 	if (!orig_node)
 		return BATADV_NO_DUP;
 
-	spin_lock_bh(&orig_node->ogm_cnt_lock);
+	spin_lock_bh(&orig_node->bat_iv.ogm_cnt_lock);
 	seq_diff = seqno - orig_node->last_real_seqno;
 
 	/* signalize caller that the packet is to be dropped. */
@@ -1033,7 +1087,7 @@ batadv_iv_ogm_update_seqnos(const struct ethhdr *ethhdr,
 	}
 
 out:
-	spin_unlock_bh(&orig_node->ogm_cnt_lock);
+	spin_unlock_bh(&orig_node->bat_iv.ogm_cnt_lock);
 	batadv_orig_node_free_ref(orig_node);
 	return ret;
 }
@@ -1129,8 +1183,8 @@ static void batadv_iv_ogm_process(const struct ethhdr *ethhdr,
 		int16_t if_num;
 		uint8_t *weight;
 
-		orig_neigh_node = batadv_get_orig_node(bat_priv,
-						       ethhdr->h_source);
+		orig_neigh_node = batadv_iv_ogm_orig_get(bat_priv,
+							 ethhdr->h_source);
 		if (!orig_neigh_node)
 			return;
 
@@ -1144,15 +1198,15 @@ static void batadv_iv_ogm_process(const struct ethhdr *ethhdr,
 			if_num = if_incoming->if_num;
 			offset = if_num * BATADV_NUM_WORDS;
 
-			spin_lock_bh(&orig_neigh_node->ogm_cnt_lock);
-			word = &(orig_neigh_node->bcast_own[offset]);
+			spin_lock_bh(&orig_neigh_node->bat_iv.ogm_cnt_lock);
+			word = &(orig_neigh_node->bat_iv.bcast_own[offset]);
 			bit_pos = if_incoming_seqno - 2;
 			bit_pos -= ntohl(batadv_ogm_packet->seqno);
 			batadv_set_bit(word, bit_pos);
-			weight = &orig_neigh_node->bcast_own_sum[if_num];
+			weight = &orig_neigh_node->bat_iv.bcast_own_sum[if_num];
 			*weight = bitmap_weight(word,
 						BATADV_TQ_LOCAL_WINDOW_SIZE);
-			spin_unlock_bh(&orig_neigh_node->ogm_cnt_lock);
+			spin_unlock_bh(&orig_neigh_node->bat_iv.ogm_cnt_lock);
 		}
 
 		batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
@@ -1175,7 +1229,7 @@ static void batadv_iv_ogm_process(const struct ethhdr *ethhdr,
 		return;
 	}
 
-	orig_node = batadv_get_orig_node(bat_priv, batadv_ogm_packet->orig);
+	orig_node = batadv_iv_ogm_orig_get(bat_priv, batadv_ogm_packet->orig);
 	if (!orig_node)
 		return;
 
@@ -1225,8 +1279,8 @@ static void batadv_iv_ogm_process(const struct ethhdr *ethhdr,
 	if (is_single_hop_neigh)
 		orig_neigh_node = orig_node;
 	else
-		orig_neigh_node = batadv_get_orig_node(bat_priv,
-						       ethhdr->h_source);
+		orig_neigh_node = batadv_iv_ogm_orig_get(bat_priv,
+							 ethhdr->h_source);
 
 	if (!orig_neigh_node)
 		goto out;
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index 50f6d9964780..aa1409467d08 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -36,7 +36,7 @@ static struct lock_class_key batadv_orig_hash_lock_class_key;
 static void batadv_purge_orig(struct work_struct *work);
 
 /* returns 1 if they are the same originator */
-static int batadv_compare_orig(const struct hlist_node *node, const void *data2)
+int batadv_compare_orig(const struct hlist_node *node, const void *data2)
 {
 	const void *data1 = container_of(node, struct batadv_orig_node,
 					 hash_entry);
@@ -242,8 +242,8 @@ static void batadv_orig_node_free_rcu(struct rcu_head *rcu)
 				  "originator timed out");
 
 	kfree(orig_node->tt_buff);
-	kfree(orig_node->bcast_own);
-	kfree(orig_node->bcast_own_sum);
+	kfree(orig_node->bat_iv.bcast_own);
+	kfree(orig_node->bat_iv.bcast_own_sum);
 	kfree(orig_node);
 }
 
@@ -301,21 +301,22 @@ void batadv_originator_free(struct batadv_priv *bat_priv)
 	batadv_hash_destroy(hash);
 }
 
-/* this function finds or creates an originator entry for the given
- * address if it does not exits
+/**
+ * batadv_orig_node_new - creates a new orig_node
+ * @bat_priv: the bat priv with all the soft interface information
+ * @addr: the mac address of the originator
+ *
+ * Creates a new originator object and initialise all the generic fields.
+ * The new object is not added to the originator list.
+ * Returns the newly created object or NULL on failure.
  */
-struct batadv_orig_node *batadv_get_orig_node(struct batadv_priv *bat_priv,
+struct batadv_orig_node *batadv_orig_node_new(struct batadv_priv *bat_priv,
 					      const uint8_t *addr)
 {
 	struct batadv_orig_node *orig_node;
 	struct batadv_orig_node_vlan *vlan;
-	int size, i;
-	int hash_added;
 	unsigned long reset_time;
-
-	orig_node = batadv_orig_hash_find(bat_priv, addr);
-	if (orig_node)
-		return orig_node;
+	int i;
 
 	batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
 		   "Creating new originator: %pM\n", addr);
@@ -327,7 +328,6 @@ struct batadv_orig_node *batadv_get_orig_node(struct batadv_priv *bat_priv,
 	INIT_HLIST_HEAD(&orig_node->neigh_list);
 	INIT_LIST_HEAD(&orig_node->bond_list);
 	INIT_LIST_HEAD(&orig_node->vlan_list);
-	spin_lock_init(&orig_node->ogm_cnt_lock);
 	spin_lock_init(&orig_node->bcast_seqno_lock);
 	spin_lock_init(&orig_node->neigh_list_lock);
 	spin_lock_init(&orig_node->tt_buff_lock);
@@ -363,37 +363,13 @@ struct batadv_orig_node *batadv_get_orig_node(struct batadv_priv *bat_priv,
 	 */
 	batadv_orig_node_vlan_free_ref(vlan);
 
-	size = bat_priv->num_ifaces * sizeof(unsigned long) * BATADV_NUM_WORDS;
-
-	orig_node->bcast_own = kzalloc(size, GFP_ATOMIC);
-	if (!orig_node->bcast_own)
-		goto free_vlan;
-
-	size = bat_priv->num_ifaces * sizeof(uint8_t);
-	orig_node->bcast_own_sum = kzalloc(size, GFP_ATOMIC);
-
 	for (i = 0; i < BATADV_FRAG_BUFFER_COUNT; i++) {
 		INIT_HLIST_HEAD(&orig_node->fragments[i].head);
 		spin_lock_init(&orig_node->fragments[i].lock);
 		orig_node->fragments[i].size = 0;
 	}
 
-	if (!orig_node->bcast_own_sum)
-		goto free_bcast_own;
-
-	hash_added = batadv_hash_add(bat_priv->orig_hash, batadv_compare_orig,
-				     batadv_choose_orig, orig_node,
-				     &orig_node->hash_entry);
-	if (hash_added != 0)
-		goto free_bcast_own_sum;
-
 	return orig_node;
-free_bcast_own_sum:
-	kfree(orig_node->bcast_own_sum);
-free_bcast_own:
-	kfree(orig_node->bcast_own);
-free_vlan:
-	batadv_orig_node_vlan_free_ref(vlan);
 free_orig_node:
 	kfree(orig_node);
 	return NULL;
@@ -619,18 +595,18 @@ static int batadv_orig_node_add_if(struct batadv_orig_node *orig_node,
 	if (!data_ptr)
 		return -ENOMEM;
 
-	memcpy(data_ptr, orig_node->bcast_own, old_size);
-	kfree(orig_node->bcast_own);
-	orig_node->bcast_own = data_ptr;
+	memcpy(data_ptr, orig_node->bat_iv.bcast_own, old_size);
+	kfree(orig_node->bat_iv.bcast_own);
+	orig_node->bat_iv.bcast_own = data_ptr;
 
 	data_ptr = kmalloc(max_if_num * sizeof(uint8_t), GFP_ATOMIC);
 	if (!data_ptr)
 		return -ENOMEM;
 
-	memcpy(data_ptr, orig_node->bcast_own_sum,
+	memcpy(data_ptr, orig_node->bat_iv.bcast_own_sum,
 	       (max_if_num - 1) * sizeof(uint8_t));
-	kfree(orig_node->bcast_own_sum);
-	orig_node->bcast_own_sum = data_ptr;
+	kfree(orig_node->bat_iv.bcast_own_sum);
+	orig_node->bat_iv.bcast_own_sum = data_ptr;
 
 	return 0;
 }
@@ -653,9 +629,9 @@ int batadv_orig_hash_add_if(struct batadv_hard_iface *hard_iface,
 
 		rcu_read_lock();
 		hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
-			spin_lock_bh(&orig_node->ogm_cnt_lock);
+			spin_lock_bh(&orig_node->bat_iv.ogm_cnt_lock);
 			ret = batadv_orig_node_add_if(orig_node, max_if_num);
-			spin_unlock_bh(&orig_node->ogm_cnt_lock);
+			spin_unlock_bh(&orig_node->bat_iv.ogm_cnt_lock);
 
 			if (ret == -ENOMEM)
 				goto err;
@@ -673,8 +649,8 @@ err:
 static int batadv_orig_node_del_if(struct batadv_orig_node *orig_node,
 				   int max_if_num, int del_if_num)
 {
+	int chunk_size, if_offset;
 	void *data_ptr = NULL;
-	int chunk_size;
 
 	/* last interface was removed */
 	if (max_if_num == 0)
@@ -686,16 +662,16 @@ static int batadv_orig_node_del_if(struct batadv_orig_node *orig_node,
 		return -ENOMEM;
 
 	/* copy first part */
-	memcpy(data_ptr, orig_node->bcast_own, del_if_num * chunk_size);
+	memcpy(data_ptr, orig_node->bat_iv.bcast_own, del_if_num * chunk_size);
 
 	/* copy second part */
 	memcpy((char *)data_ptr + del_if_num * chunk_size,
-	       orig_node->bcast_own + ((del_if_num + 1) * chunk_size),
+	       orig_node->bat_iv.bcast_own + ((del_if_num + 1) * chunk_size),
 	       (max_if_num - del_if_num) * chunk_size);
 
 free_bcast_own:
-	kfree(orig_node->bcast_own);
-	orig_node->bcast_own = data_ptr;
+	kfree(orig_node->bat_iv.bcast_own);
+	orig_node->bat_iv.bcast_own = data_ptr;
 
 	if (max_if_num == 0)
 		goto free_own_sum;
@@ -704,16 +680,17 @@ free_bcast_own:
 	if (!data_ptr)
 		return -ENOMEM;
 
-	memcpy(data_ptr, orig_node->bcast_own_sum,
+	memcpy(data_ptr, orig_node->bat_iv.bcast_own_sum,
 	       del_if_num * sizeof(uint8_t));
 
+	if_offset = (del_if_num + 1) * sizeof(uint8_t);
 	memcpy((char *)data_ptr + del_if_num * sizeof(uint8_t),
-	       orig_node->bcast_own_sum + ((del_if_num + 1) * sizeof(uint8_t)),
+	       orig_node->bat_iv.bcast_own_sum + if_offset,
 	       (max_if_num - del_if_num) * sizeof(uint8_t));
 
 free_own_sum:
-	kfree(orig_node->bcast_own_sum);
-	orig_node->bcast_own_sum = data_ptr;
+	kfree(orig_node->bat_iv.bcast_own_sum);
+	orig_node->bat_iv.bcast_own_sum = data_ptr;
 
 	return 0;
 }
@@ -737,10 +714,10 @@ int batadv_orig_hash_del_if(struct batadv_hard_iface *hard_iface,
 
 		rcu_read_lock();
 		hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
-			spin_lock_bh(&orig_node->ogm_cnt_lock);
+			spin_lock_bh(&orig_node->bat_iv.ogm_cnt_lock);
 			ret = batadv_orig_node_del_if(orig_node, max_if_num,
 						      hard_iface->if_num);
-			spin_unlock_bh(&orig_node->ogm_cnt_lock);
+			spin_unlock_bh(&orig_node->bat_iv.ogm_cnt_lock);
 
 			if (ret == -ENOMEM)
 				goto err;
diff --git a/net/batman-adv/originator.h b/net/batman-adv/originator.h
index 06e5a6809dd7..6f77d808a916 100644
--- a/net/batman-adv/originator.h
+++ b/net/batman-adv/originator.h
@@ -22,12 +22,13 @@
 
 #include "hash.h"
 
+int batadv_compare_orig(const struct hlist_node *node, const void *data2);
 int batadv_originator_init(struct batadv_priv *bat_priv);
 void batadv_originator_free(struct batadv_priv *bat_priv);
 void batadv_purge_orig_ref(struct batadv_priv *bat_priv);
 void batadv_orig_node_free_ref(struct batadv_orig_node *orig_node);
 void batadv_orig_node_free_ref_now(struct batadv_orig_node *orig_node);
-struct batadv_orig_node *batadv_get_orig_node(struct batadv_priv *bat_priv,
+struct batadv_orig_node *batadv_orig_node_new(struct batadv_priv *bat_priv,
 					      const uint8_t *addr);
 struct batadv_neigh_node *
 batadv_neigh_node_new(struct batadv_hard_iface *hard_iface,
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index a3213343a181..97bde51b6031 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -132,15 +132,29 @@ struct batadv_orig_node_vlan {
 	struct rcu_head rcu;
 };
 
+/**
+ * struct batadv_orig_bat_iv - B.A.T.M.A.N. IV private orig_node members
+ * @bcast_own: bitfield containing the number of our OGMs this orig_node
+ *  rebroadcasted "back" to us (relative to last_real_seqno)
+ * @bcast_own_sum: counted result of bcast_own
+ * @ogm_cnt_lock: lock protecting bcast_own, bcast_own_sum,
+ *  neigh_node->bat_iv.real_bits & neigh_node->bat_iv.real_packet_count
+ */
+struct batadv_orig_bat_iv {
+	unsigned long *bcast_own;
+	uint8_t *bcast_own_sum;
+	/* ogm_cnt_lock protects: bcast_own, bcast_own_sum,
+	 * neigh_node->bat_iv.real_bits & neigh_node->bat_iv.real_packet_count
+	 */
+	spinlock_t ogm_cnt_lock;
+};
+
 /**
  * struct batadv_orig_node - structure for orig_list maintaining nodes of mesh
  * @orig: originator ethernet address
  * @primary_addr: hosts primary interface address
  * @router: router that should be used to reach this originator
  * @batadv_dat_addr_t:  address of the orig node in the distributed hash
- * @bcast_own: bitfield containing the number of our OGMs this orig_node
- *  rebroadcasted "back" to us (relative to last_real_seqno)
- * @bcast_own_sum: counted result of bcast_own
  * @last_seen: time when last packet from this node was received
  * @bcast_seqno_reset: time when the broadcast seqno window was reset
  * @batman_seqno_reset: time when the batman seqno window was reset
@@ -166,8 +180,6 @@ struct batadv_orig_node_vlan {
  * @neigh_list_lock: lock protecting neigh_list, router and bonding_list
  * @hash_entry: hlist node for batadv_priv::orig_hash
  * @bat_priv: pointer to soft_iface this orig node belongs to
- * @ogm_cnt_lock: lock protecting bcast_own, bcast_own_sum,
- *  neigh_node->real_bits & neigh_node->real_packet_count
  * @bcast_seqno_lock: lock protecting bcast_bits & last_bcast_seqno
  * @bond_candidates: how many candidates are available
  * @bond_list: list of bonding candidates
@@ -181,6 +193,7 @@ struct batadv_orig_node_vlan {
  * @vlan_list: a list of orig_node_vlan structs, one per VLAN served by the
  *  originator represented by this object
  * @vlan_list_lock: lock protecting vlan_list
+ * @bat_iv: B.A.T.M.A.N. IV private structure
  */
 struct batadv_orig_node {
 	uint8_t orig[ETH_ALEN];
@@ -189,8 +202,6 @@ struct batadv_orig_node {
 #ifdef CONFIG_BATMAN_ADV_DAT
 	batadv_dat_addr_t dat_addr;
 #endif
-	unsigned long *bcast_own;
-	uint8_t *bcast_own_sum;
 	unsigned long last_seen;
 	unsigned long bcast_seqno_reset;
 	unsigned long batman_seqno_reset;
@@ -211,10 +222,6 @@ struct batadv_orig_node {
 	spinlock_t neigh_list_lock;
 	struct hlist_node hash_entry;
 	struct batadv_priv *bat_priv;
-	/* ogm_cnt_lock protects: bcast_own, bcast_own_sum,
-	 * neigh_node->real_bits & neigh_node->real_packet_count
-	 */
-	spinlock_t ogm_cnt_lock;
 	/* bcast_seqno_lock protects: bcast_bits & last_bcast_seqno */
 	spinlock_t bcast_seqno_lock;
 	atomic_t bond_candidates;
@@ -230,6 +237,7 @@ struct batadv_orig_node {
 	struct batadv_frag_table_entry fragments[BATADV_FRAG_BUFFER_COUNT];
 	struct list_head vlan_list;
 	spinlock_t vlan_list_lock; /* protects vlan_list */
+	struct batadv_orig_bat_iv bat_iv;
 };
 
 /**
-- 
cgit 


From 737a2a229774ef983ef783149384bae3e3aa38ac Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Mon, 2 Sep 2013 12:15:03 +0200
Subject: batman-adv: add bat_orig_print API function

Each routing protocol has its own metric and private
variables, therefore it is useful to introduce a new API
for originator information printing.

This API needs to be implemented by each protocol in order
to provide its specific originator table output.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/bat_iv_ogm.c | 65 ++++++++++++++++++++++++++++++++++++++++++++
 net/batman-adv/originator.c | 66 +++++++--------------------------------------
 net/batman-adv/types.h      |  3 +++
 3 files changed, 78 insertions(+), 56 deletions(-)

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 0b1343dde5d2..4aabd554ca75 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -1411,6 +1411,70 @@ static int batadv_iv_ogm_receive(struct sk_buff *skb,
 	return NET_RX_SUCCESS;
 }
 
+/**
+ * batadv_iv_ogm_orig_print - print the originator table
+ * @bat_priv: the bat priv with all the soft interface information
+ * @seq: debugfs table seq_file struct
+ */
+static void batadv_iv_ogm_orig_print(struct batadv_priv *bat_priv,
+				     struct seq_file *seq)
+{
+	struct batadv_neigh_node *neigh_node, *neigh_node_tmp;
+	struct batadv_hashtable *hash = bat_priv->orig_hash;
+	int last_seen_msecs, last_seen_secs;
+	struct batadv_orig_node *orig_node;
+	unsigned long last_seen_jiffies;
+	struct hlist_head *head;
+	int batman_count = 0;
+	uint32_t i;
+
+	seq_printf(seq, "  %-15s %s (%s/%i) %17s [%10s]: %20s ...\n",
+		   "Originator", "last-seen", "#", BATADV_TQ_MAX_VALUE,
+		   "Nexthop", "outgoingIF", "Potential nexthops");
+
+	for (i = 0; i < hash->size; i++) {
+		head = &hash->table[i];
+
+		rcu_read_lock();
+		hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
+			neigh_node = batadv_orig_node_get_router(orig_node);
+			if (!neigh_node)
+				continue;
+
+			if (neigh_node->bat_iv.tq_avg == 0)
+				goto next;
+
+			last_seen_jiffies = jiffies - orig_node->last_seen;
+			last_seen_msecs = jiffies_to_msecs(last_seen_jiffies);
+			last_seen_secs = last_seen_msecs / 1000;
+			last_seen_msecs = last_seen_msecs % 1000;
+
+			seq_printf(seq, "%pM %4i.%03is   (%3i) %pM [%10s]:",
+				   orig_node->orig, last_seen_secs,
+				   last_seen_msecs, neigh_node->bat_iv.tq_avg,
+				   neigh_node->addr,
+				   neigh_node->if_incoming->net_dev->name);
+
+			hlist_for_each_entry_rcu(neigh_node_tmp,
+						 &orig_node->neigh_list, list) {
+				seq_printf(seq, " %pM (%3i)",
+					   neigh_node_tmp->addr,
+					   neigh_node_tmp->bat_iv.tq_avg);
+			}
+
+			seq_puts(seq, "\n");
+			batman_count++;
+
+next:
+			batadv_neigh_node_free_ref(neigh_node);
+		}
+		rcu_read_unlock();
+	}
+
+	if (batman_count == 0)
+		seq_puts(seq, "No batman nodes in range ...\n");
+}
+
 static struct batadv_algo_ops batadv_batman_iv __read_mostly = {
 	.name = "BATMAN_IV",
 	.bat_iface_enable = batadv_iv_ogm_iface_enable,
@@ -1419,6 +1483,7 @@ static struct batadv_algo_ops batadv_batman_iv __read_mostly = {
 	.bat_primary_iface_set = batadv_iv_ogm_primary_iface_set,
 	.bat_ogm_schedule = batadv_iv_ogm_schedule,
 	.bat_ogm_emit = batadv_iv_ogm_emit,
+	.bat_orig_print = batadv_iv_ogm_orig_print,
 };
 
 int __init batadv_iv_init(void)
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index aa1409467d08..8d1b16eb12d1 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -513,73 +513,27 @@ int batadv_orig_seq_print_text(struct seq_file *seq, void *offset)
 {
 	struct net_device *net_dev = (struct net_device *)seq->private;
 	struct batadv_priv *bat_priv = netdev_priv(net_dev);
-	struct batadv_hashtable *hash = bat_priv->orig_hash;
-	struct hlist_head *head;
 	struct batadv_hard_iface *primary_if;
-	struct batadv_orig_node *orig_node;
-	struct batadv_neigh_node *neigh_node, *neigh_node_tmp;
-	int batman_count = 0;
-	int last_seen_secs;
-	int last_seen_msecs;
-	unsigned long last_seen_jiffies;
-	uint32_t i;
 
 	primary_if = batadv_seq_print_text_primary_if_get(seq);
 	if (!primary_if)
-		goto out;
+		return 0;
 
-	seq_printf(seq, "[B.A.T.M.A.N. adv %s, MainIF/MAC: %s/%pM (%s)]\n",
+	seq_printf(seq, "[B.A.T.M.A.N. adv %s, MainIF/MAC: %s/%pM (%s %s)]\n",
 		   BATADV_SOURCE_VERSION, primary_if->net_dev->name,
-		   primary_if->net_dev->dev_addr, net_dev->name);
-	seq_printf(seq, "  %-15s %s (%s/%i) %17s [%10s]: %20s ...\n",
-		   "Originator", "last-seen", "#", BATADV_TQ_MAX_VALUE,
-		   "Nexthop", "outgoingIF", "Potential nexthops");
-
-	for (i = 0; i < hash->size; i++) {
-		head = &hash->table[i];
-
-		rcu_read_lock();
-		hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
-			neigh_node = batadv_orig_node_get_router(orig_node);
-			if (!neigh_node)
-				continue;
-
-			if (neigh_node->bat_iv.tq_avg == 0)
-				goto next;
-
-			last_seen_jiffies = jiffies - orig_node->last_seen;
-			last_seen_msecs = jiffies_to_msecs(last_seen_jiffies);
-			last_seen_secs = last_seen_msecs / 1000;
-			last_seen_msecs = last_seen_msecs % 1000;
-
-			seq_printf(seq, "%pM %4i.%03is   (%3i) %pM [%10s]:",
-				   orig_node->orig, last_seen_secs,
-				   last_seen_msecs, neigh_node->bat_iv.tq_avg,
-				   neigh_node->addr,
-				   neigh_node->if_incoming->net_dev->name);
-
-			hlist_for_each_entry_rcu(neigh_node_tmp,
-						 &orig_node->neigh_list, list) {
-				seq_printf(seq, " %pM (%3i)",
-					   neigh_node_tmp->addr,
-					   neigh_node_tmp->bat_iv.tq_avg);
-			}
+		   primary_if->net_dev->dev_addr, net_dev->name,
+		   bat_priv->bat_algo_ops->name);
 
-			seq_puts(seq, "\n");
-			batman_count++;
+	batadv_hardif_free_ref(primary_if);
 
-next:
-			batadv_neigh_node_free_ref(neigh_node);
-		}
-		rcu_read_unlock();
+	if (!bat_priv->bat_algo_ops->bat_orig_print) {
+		seq_puts(seq,
+			 "No printing function for this routing protocol\n");
+		return 0;
 	}
 
-	if (batman_count == 0)
-		seq_puts(seq, "No batman nodes in range ...\n");
+	bat_priv->bat_algo_ops->bat_orig_print(bat_priv, seq);
 
-out:
-	if (primary_if)
-		batadv_hardif_free_ref(primary_if);
 	return 0;
 }
 
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 97bde51b6031..72fd617b2e73 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -992,6 +992,7 @@ struct batadv_forw_packet {
  * @bat_primary_iface_set: called when primary interface is selected / changed
  * @bat_ogm_schedule: prepare a new outgoing OGM for the send queue
  * @bat_ogm_emit: send scheduled OGM
+ * @bat_orig_print: print the originator table (optional)
  */
 struct batadv_algo_ops {
 	struct hlist_node list;
@@ -1002,6 +1003,8 @@ struct batadv_algo_ops {
 	void (*bat_primary_iface_set)(struct batadv_hard_iface *hard_iface);
 	void (*bat_ogm_schedule)(struct batadv_hard_iface *hard_iface);
 	void (*bat_ogm_emit)(struct batadv_forw_packet *forw_packet);
+	/* orig_node handling API */
+	void (*bat_orig_print)(struct batadv_priv *priv, struct seq_file *seq);
 };
 
 /**
-- 
cgit 


From a3285a8f20dace536ecc6a2f349150ea1d0bb391 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Mon, 2 Sep 2013 12:15:04 +0200
Subject: batman-adv: add bat_neigh_cmp API function

This new API allows to compare the two neighbours based on
the metric avoiding the user to deal with any routing
algorithm specific detail

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/bat_iv_ogm.c | 20 ++++++++++++++++++++
 net/batman-adv/main.c       |  3 ++-
 net/batman-adv/types.h      |  3 +++
 3 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 4aabd554ca75..b288d90855d1 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -1475,6 +1475,25 @@ next:
 		seq_puts(seq, "No batman nodes in range ...\n");
 }
 
+/**
+ * batadv_iv_ogm_neigh_cmp - compare the metrics of two neighbors
+ * @neigh1: the first neighbor object of the comparison
+ * @neigh2: the second neighbor object of the comparison
+ *
+ * Returns a value less, equal to or greater than 0 if the metric via neigh1 is
+ * lower, the same as or higher than the metric via neigh2
+ */
+static int batadv_iv_ogm_neigh_cmp(struct batadv_neigh_node *neigh1,
+				   struct batadv_neigh_node *neigh2)
+{
+	uint8_t tq1, tq2;
+
+	tq1 = neigh1->bat_iv.tq_avg;
+	tq2 = neigh2->bat_iv.tq_avg;
+
+	return tq1 - tq2;
+}
+
 static struct batadv_algo_ops batadv_batman_iv __read_mostly = {
 	.name = "BATMAN_IV",
 	.bat_iface_enable = batadv_iv_ogm_iface_enable,
@@ -1483,6 +1502,7 @@ static struct batadv_algo_ops batadv_batman_iv __read_mostly = {
 	.bat_primary_iface_set = batadv_iv_ogm_primary_iface_set,
 	.bat_ogm_schedule = batadv_iv_ogm_schedule,
 	.bat_ogm_emit = batadv_iv_ogm_emit,
+	.bat_neigh_cmp = batadv_iv_ogm_neigh_cmp,
 	.bat_orig_print = batadv_iv_ogm_orig_print,
 };
 
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index 3159a148c1ac..1f2f1ac67a4c 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -501,7 +501,8 @@ int batadv_algo_register(struct batadv_algo_ops *bat_algo_ops)
 	    !bat_algo_ops->bat_iface_update_mac ||
 	    !bat_algo_ops->bat_primary_iface_set ||
 	    !bat_algo_ops->bat_ogm_schedule ||
-	    !bat_algo_ops->bat_ogm_emit) {
+	    !bat_algo_ops->bat_ogm_emit ||
+	    !bat_algo_ops->bat_neigh_cmp) {
 		pr_info("Routing algo '%s' does not implement required ops\n",
 			bat_algo_ops->name);
 		ret = -EINVAL;
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 72fd617b2e73..7a00932a55bd 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -992,6 +992,7 @@ struct batadv_forw_packet {
  * @bat_primary_iface_set: called when primary interface is selected / changed
  * @bat_ogm_schedule: prepare a new outgoing OGM for the send queue
  * @bat_ogm_emit: send scheduled OGM
+ * @bat_neigh_cmp: compare the metrics of two neighbors
  * @bat_orig_print: print the originator table (optional)
  */
 struct batadv_algo_ops {
@@ -1003,6 +1004,8 @@ struct batadv_algo_ops {
 	void (*bat_primary_iface_set)(struct batadv_hard_iface *hard_iface);
 	void (*bat_ogm_schedule)(struct batadv_hard_iface *hard_iface);
 	void (*bat_ogm_emit)(struct batadv_forw_packet *forw_packet);
+	int (*bat_neigh_cmp)(struct batadv_neigh_node *neigh1,
+			     struct batadv_neigh_node *neigh2);
 	/* orig_node handling API */
 	void (*bat_orig_print)(struct batadv_priv *priv, struct seq_file *seq);
 };
-- 
cgit 


From c43c981e50f47bdd0f1eb400dc30ff13472c7be6 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Mon, 2 Sep 2013 12:15:05 +0200
Subject: batman-adv: add bat_neigh_is_equiv_or_better API function

Each routing protocol has its own metric semantic and
therefore is the protocol itself the only component able to
compare two metrics to check their "similarity".

This new API allows each routing protocol to implement its
own logic and make the external code protocol agnostic.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/bat_iv_ogm.c | 18 ++++++++++++++++++
 net/batman-adv/main.c       |  3 ++-
 net/batman-adv/main.h       |  6 ++++++
 net/batman-adv/types.h      |  4 ++++
 4 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index b288d90855d1..4376fe75eeec 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -1494,6 +1494,23 @@ static int batadv_iv_ogm_neigh_cmp(struct batadv_neigh_node *neigh1,
 	return tq1 - tq2;
 }
 
+/**
+ * batadv_iv_ogm_neigh_is_eob - check if neigh1 is equally good or better than
+ *  neigh2 from the metric prospective
+ * @neigh1: the first neighbor object of the comparison
+ * @neigh2: the second neighbor object of the comparison
+ *
+ * Returns true if the metric via neigh1 is equally good or better than the
+ * metric via neigh2, false otherwise.
+ */
+static bool batadv_iv_ogm_neigh_is_eob(struct batadv_neigh_node *neigh1,
+				       struct batadv_neigh_node *neigh2)
+{
+	int diff = batadv_iv_ogm_neigh_cmp(neigh1, neigh2);
+
+	return diff > -BATADV_TQ_SIMILARITY_THRESHOLD;
+}
+
 static struct batadv_algo_ops batadv_batman_iv __read_mostly = {
 	.name = "BATMAN_IV",
 	.bat_iface_enable = batadv_iv_ogm_iface_enable,
@@ -1503,6 +1520,7 @@ static struct batadv_algo_ops batadv_batman_iv __read_mostly = {
 	.bat_ogm_schedule = batadv_iv_ogm_schedule,
 	.bat_ogm_emit = batadv_iv_ogm_emit,
 	.bat_neigh_cmp = batadv_iv_ogm_neigh_cmp,
+	.bat_neigh_is_equiv_or_better = batadv_iv_ogm_neigh_is_eob,
 	.bat_orig_print = batadv_iv_ogm_orig_print,
 };
 
diff --git a/net/batman-adv/main.c b/net/batman-adv/main.c
index 1f2f1ac67a4c..c51a5e568f0a 100644
--- a/net/batman-adv/main.c
+++ b/net/batman-adv/main.c
@@ -502,7 +502,8 @@ int batadv_algo_register(struct batadv_algo_ops *bat_algo_ops)
 	    !bat_algo_ops->bat_primary_iface_set ||
 	    !bat_algo_ops->bat_ogm_schedule ||
 	    !bat_algo_ops->bat_ogm_emit ||
-	    !bat_algo_ops->bat_neigh_cmp) {
+	    !bat_algo_ops->bat_neigh_cmp ||
+	    !bat_algo_ops->bat_neigh_is_equiv_or_better) {
 		pr_info("Routing algo '%s' does not implement required ops\n",
 			bat_algo_ops->name);
 		ret = -EINVAL;
diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index d7dfafe45f29..773301a7923f 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -86,6 +86,12 @@
 /* numbers of originator to contact for any PUT/GET DHT operation */
 #define BATADV_DAT_CANDIDATES_NUM 3
 
+/**
+ * BATADV_TQ_SIMILARITY_THRESHOLD - TQ points that a secondary metric can differ
+ *  at most from the primary one in order to be still considered acceptable
+ */
+#define BATADV_TQ_SIMILARITY_THRESHOLD 50
+
 /* how much worse secondary interfaces may be to be considered as bonding
  * candidates
  */
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 7a00932a55bd..d0e64d269da4 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -993,6 +993,8 @@ struct batadv_forw_packet {
  * @bat_ogm_schedule: prepare a new outgoing OGM for the send queue
  * @bat_ogm_emit: send scheduled OGM
  * @bat_neigh_cmp: compare the metrics of two neighbors
+ * @bat_neigh_is_equiv_or_better: check if neigh1 is equally good or
+ *  better than neigh2 from the metric prospective
  * @bat_orig_print: print the originator table (optional)
  */
 struct batadv_algo_ops {
@@ -1006,6 +1008,8 @@ struct batadv_algo_ops {
 	void (*bat_ogm_emit)(struct batadv_forw_packet *forw_packet);
 	int (*bat_neigh_cmp)(struct batadv_neigh_node *neigh1,
 			     struct batadv_neigh_node *neigh2);
+	bool (*bat_neigh_is_equiv_or_better)(struct batadv_neigh_node *neigh1,
+					     struct batadv_neigh_node *neigh2);
 	/* orig_node handling API */
 	void (*bat_orig_print)(struct batadv_priv *priv, struct seq_file *seq);
 };
-- 
cgit 


From 6680a1249f76c28e19fc24b0c85f671b019c8bc7 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Mon, 2 Sep 2013 12:15:06 +0200
Subject: batman-adv: adapt bonding to use the new API functions

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/bat_iv_ogm.c |  2 +-
 net/batman-adv/routing.c    | 42 +++++++++++++++++++++++++++++-------------
 net/batman-adv/routing.h    |  3 ++-
 3 files changed, 32 insertions(+), 15 deletions(-)

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 4376fe75eeec..7cdc3943103a 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -853,7 +853,7 @@ batadv_iv_ogm_orig_update(struct batadv_priv *bat_priv,
 		neigh_node->last_ttl = batadv_ogm_packet->header.ttl;
 	}
 
-	batadv_bonding_candidate_add(orig_node, neigh_node);
+	batadv_bonding_candidate_add(bat_priv, orig_node, neigh_node);
 
 	/* if this neighbor already is our next hop there is nothing
 	 * to change
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 5b78a71c1b02..71fba146ddf1 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -115,11 +115,21 @@ out:
 	return;
 }
 
-void batadv_bonding_candidate_add(struct batadv_orig_node *orig_node,
+/**
+ * batadv_bonding_candidate_add - consider a new link for bonding mode towards
+ *  the given originator
+ * @bat_priv: the bat priv with all the soft interface information
+ * @orig_node: the target node
+ * @neigh_node: the neighbor representing the new link to consider for bonding
+ *  mode
+ */
+void batadv_bonding_candidate_add(struct batadv_priv *bat_priv,
+				  struct batadv_orig_node *orig_node,
 				  struct batadv_neigh_node *neigh_node)
 {
+	struct batadv_algo_ops *bao = bat_priv->bat_algo_ops;
 	struct batadv_neigh_node *tmp_neigh_node, *router = NULL;
-	uint8_t interference_candidate = 0, tq;
+	uint8_t interference_candidate = 0;
 
 	spin_lock_bh(&orig_node->neigh_list_lock);
 
@@ -134,8 +144,7 @@ void batadv_bonding_candidate_add(struct batadv_orig_node *orig_node,
 
 
 	/* ... and is good enough to be considered */
-	tq = router->bat_iv.tq_avg - BATADV_BONDING_TQ_THRESHOLD;
-	if (neigh_node->bat_iv.tq_avg < tq)
+	if (bao->bat_neigh_is_equiv_or_better(neigh_node, router))
 		goto candidate_del;
 
 	/* check if we have another candidate with the same mac address or
@@ -481,18 +490,25 @@ out:
 	return router;
 }
 
-/* Interface Alternating: Use the best of the
- * remaining candidates which are not using
- * this interface.
+/**
+ * batadv_find_ifalter_router - find the best of the remaining candidates which
+ *  are not using this interface
+ * @bat_priv: the bat priv with all the soft interface information
+ * @primary_orig: the destination
+ * @recv_if: the interface that the router returned by this function has to not
+ *  use
  *
- * Increases the returned router's refcount
+ * Returns the best candidate towards primary_orig that is not using recv_if.
+ * Increases the returned neighbor's refcount
  */
 static struct batadv_neigh_node *
-batadv_find_ifalter_router(struct batadv_orig_node *primary_orig,
+batadv_find_ifalter_router(struct batadv_priv *bat_priv,
+			   struct batadv_orig_node *primary_orig,
 			   const struct batadv_hard_iface *recv_if)
 {
-	struct batadv_neigh_node *tmp_neigh_node;
 	struct batadv_neigh_node *router = NULL, *first_candidate = NULL;
+	struct batadv_algo_ops *bao = bat_priv->bat_algo_ops;
+	struct batadv_neigh_node *tmp_neigh_node;
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(tmp_neigh_node, &primary_orig->bond_list,
@@ -504,8 +520,7 @@ batadv_find_ifalter_router(struct batadv_orig_node *primary_orig,
 		if (tmp_neigh_node->if_incoming == recv_if)
 			continue;
 
-		if (router &&
-		    tmp_neigh_node->bat_iv.tq_avg <= router->bat_iv.tq_avg)
+		if (router && bao->bat_neigh_cmp(tmp_neigh_node, router))
 			continue;
 
 		if (!atomic_inc_not_zero(&tmp_neigh_node->refcount))
@@ -639,7 +654,8 @@ batadv_find_router(struct batadv_priv *bat_priv,
 	if (bonding_enabled)
 		router = batadv_find_bond_router(primary_orig_node, recv_if);
 	else
-		router = batadv_find_ifalter_router(primary_orig_node, recv_if);
+		router = batadv_find_ifalter_router(bat_priv, primary_orig_node,
+						    recv_if);
 
 return_router:
 	if (router && router->if_incoming->if_status != BATADV_IF_ACTIVE)
diff --git a/net/batman-adv/routing.h b/net/batman-adv/routing.h
index 55d637a90621..19544ddb81b5 100644
--- a/net/batman-adv/routing.h
+++ b/net/batman-adv/routing.h
@@ -48,7 +48,8 @@ batadv_find_router(struct batadv_priv *bat_priv,
 		   const struct batadv_hard_iface *recv_if);
 void batadv_bonding_candidate_del(struct batadv_orig_node *orig_node,
 				  struct batadv_neigh_node *neigh_node);
-void batadv_bonding_candidate_add(struct batadv_orig_node *orig_node,
+void batadv_bonding_candidate_add(struct batadv_priv *bat_priv,
+				  struct batadv_orig_node *orig_node,
 				  struct batadv_neigh_node *neigh_node);
 void batadv_bonding_save_primary(const struct batadv_orig_node *orig_node,
 				 struct batadv_orig_node *orig_neigh_node,
-- 
cgit 


From 81e26b1a1c0ad32a3c80e31024b5c4ff4842299a Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Mon, 2 Sep 2013 12:15:07 +0200
Subject: batman-adv: adapt the neighbor purging routine to use the new API
 functions

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/originator.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index 8d1b16eb12d1..9cee053f6a5c 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -378,16 +378,16 @@ free_orig_node:
 static bool
 batadv_purge_orig_neighbors(struct batadv_priv *bat_priv,
 			    struct batadv_orig_node *orig_node,
-			    struct batadv_neigh_node **best_neigh_node)
+			    struct batadv_neigh_node **best_neigh)
 {
+	struct batadv_algo_ops *bao = bat_priv->bat_algo_ops;
 	struct hlist_node *node_tmp;
 	struct batadv_neigh_node *neigh_node;
 	bool neigh_purged = false;
 	unsigned long last_seen;
 	struct batadv_hard_iface *if_incoming;
-	uint8_t best_metric = 0;
 
-	*best_neigh_node = NULL;
+	*best_neigh = NULL;
 
 	spin_lock_bh(&orig_node->neigh_list_lock);
 
@@ -420,11 +420,12 @@ batadv_purge_orig_neighbors(struct batadv_priv *bat_priv,
 			batadv_bonding_candidate_del(orig_node, neigh_node);
 			batadv_neigh_node_free_ref(neigh_node);
 		} else {
-			if ((!*best_neigh_node) ||
-			    (neigh_node->bat_iv.tq_avg > best_metric)) {
-				*best_neigh_node = neigh_node;
-				best_metric = neigh_node->bat_iv.tq_avg;
-			}
+			/* store the best_neighbour if this is the first
+			 * iteration or if a better neighbor has been found
+			 */
+			if (!*best_neigh ||
+			    bao->bat_neigh_cmp(neigh_node, *best_neigh) > 0)
+				*best_neigh = neigh_node;
 		}
 	}
 
-- 
cgit 


From 89c97d936e76b064a52ee056602b2a62b3f1ef70 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 22 Oct 2013 10:34:09 +0300
Subject: perf inject: Do not repipe attributes to a perf.data file

perf.data files contain the attributes separately, do not put them in
the event stream as well.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1382427258-17495-6-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-inject.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index eb1a5941912b..409ceaf3b9b9 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -72,12 +72,17 @@ static int perf_event__repipe_attr(struct perf_tool *tool,
 				   union perf_event *event,
 				   struct perf_evlist **pevlist)
 {
+	struct perf_inject *inject = container_of(tool, struct perf_inject,
+						  tool);
 	int ret;
 
 	ret = perf_event__process_attr(tool, event, pevlist);
 	if (ret)
 		return ret;
 
+	if (!inject->pipe_output)
+		return 0;
+
 	return perf_event__repipe_synth(tool, event);
 }
 
-- 
cgit 


From 56921becdd1eb0720603fc2e6e4c7f518196d917 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 22 Oct 2013 10:34:17 +0300
Subject: perf tools: Do not accept parse_tag_value() overflow

parse_tag_value() accepts an "unsigned long" and multiplies it according
to a tag character.  Do not accept the value if the multiplication
overflows.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1382427258-17495-14-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/util.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index c25e57b3acb2..28a0a89c1f73 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -386,6 +386,8 @@ unsigned long parse_tag_value(const char *str, struct parse_tag *tags)
 			if (s != endptr)
 				break;
 
+			if (value > ULONG_MAX / i->mult)
+				break;
 			value *= i->mult;
 			return value;
 		}
-- 
cgit 


From 2fbe4abe944868aafdde233557ac85379b60ce46 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 22 Oct 2013 10:34:18 +0300
Subject: perf evlist: Validate that mmap_pages is not too big

Amend perf_evlist__parse_mmap_pages() to check that the mmap_pages
entered via the --mmap_pages/-m option is not too big.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1382427258-17495-15-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evlist.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 85c4c80bcac8..2ce92eceb424 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -698,7 +698,8 @@ static size_t perf_evlist__mmap_size(unsigned long pages)
 int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str,
 				  int unset __maybe_unused)
 {
-	unsigned int pages, val, *mmap_pages = opt->value;
+	unsigned int *mmap_pages = opt->value;
+	unsigned long pages, val;
 	size_t size;
 	static struct parse_tag tags[] = {
 		{ .tag  = 'B', .mult = 1       },
@@ -709,12 +710,12 @@ int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str,
 	};
 
 	val = parse_tag_value(str, tags);
-	if (val != (unsigned int) -1) {
+	if (val != (unsigned long) -1) {
 		/* we got file size value */
 		pages = PERF_ALIGN(val, page_size) / page_size;
-		if (!is_power_of_2(pages)) {
+		if (pages < (1UL << 31) && !is_power_of_2(pages)) {
 			pages = next_pow2(pages);
-			pr_info("rounding mmap pages size to %u (%u pages)\n",
+			pr_info("rounding mmap pages size to %lu (%lu pages)\n",
 				pages * page_size, pages);
 		}
 	} else {
@@ -727,6 +728,11 @@ int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str,
 		}
 	}
 
+	if (pages > UINT_MAX || pages > SIZE_MAX / page_size) {
+		pr_err("--mmap_pages/-m value too big\n");
+		return -1;
+	}
+
 	size = perf_evlist__mmap_size(pages);
 	if (!size) {
 		pr_err("--mmap_pages/-m value must be a power of two.");
-- 
cgit 


From 74af377bc25dd9ebcb0be12836abb6b401b5dd08 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 22 Oct 2013 10:34:05 +0300
Subject: perf tools: Fix non-debug build

In the absence of s DEBUG variable definition on the command line perf
tools was building without optimization.  Fix by assigning DEBUG if it
is not defined.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1382427258-17495-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/config/Makefile | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index c516d6ba6716..543aa953bab1 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -66,6 +66,10 @@ ifneq ($(WERROR),0)
   CFLAGS += -Werror
 endif
 
+ifndef DEBUG
+  DEBUG := 0
+endif
+
 ifeq ($(DEBUG),0)
   CFLAGS += -O6
 endif
-- 
cgit 


From 80970472179a45609c0b11b80619bc8c32b15f77 Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyfox@gentoo.org>
Date: Fri, 13 Sep 2013 14:51:40 -0700
Subject: Makefile: enable -Werror=implicit-int and -Werror=strict-prototypes
 by default

The common error found in forward-ported/backported patches is missing
headers.  One recent example (files and function names are mangled):

    void foo(){}
    EXPORT_SYMBOL(foo);

gave only warning

    foo.c:12345678:5: warning: function declaration isn't a prototype [-Wstrict-prototypes]
    void foo(){}
         ^

    foo.c:12345679:5: warning: data definition has no type or storage class [enabled by default]
    EXPORT_SYMBOL(foo);
    foo.c:12345679:5: warning: type defaults to 'int' in declaration of 'EXORT_SYMBOL' [-Werror=implicit-int]

Now it's a fatal error. Tested on x86_64 allyesconfig.

[akpm@linux-foundation.org: fix typos in comments]
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 Makefile | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Makefile b/Makefile
index de004ceb6b5e..c060363f11c3 100644
--- a/Makefile
+++ b/Makefile
@@ -659,6 +659,12 @@ KBUILD_CFLAGS	+= $(call cc-option,-fno-strict-overflow)
 # conserve stack if available
 KBUILD_CFLAGS   += $(call cc-option,-fconserve-stack)
 
+# disallow errors like 'EXPORT_GPL(foo);' with missing header
+KBUILD_CFLAGS   += $(call cc-option,-Werror=implicit-int)
+
+# require functions to have arguments in prototypes, not empty 'int foo()'
+KBUILD_CFLAGS   += $(call cc-option,-Werror=strict-prototypes)
+
 # use the deterministic mode of AR if available
 KBUILD_ARFLAGS := $(call ar-option,D)
 
-- 
cgit 


From 7b22c03536a539142f931815528d55df455ffe2d Mon Sep 17 00:00:00 2001
From: AKASHI Takahiro <takahiro.akashi@linaro.org>
Date: Thu, 3 Oct 2013 06:47:44 +0100
Subject: arm64: check for number of arguments in syscall_get/set_arguments()

In ftrace_syscall_enter(),
    syscall_get_arguments(..., 0, n, ...)
        if (i == 0) { <handle orig_x0> ...; n--;}
        memcpy(..., n * sizeof(args[0]));
If 'number of arguments(n)' is zero and 'argument index(i)' is also zero in
syscall_get_arguments(), none of arguments should be copied by memcpy().
Otherwise 'n--' can be a big positive number and unexpected amount of data
will be copied. Tracing system calls which take no argument, say sync(void),
may hit this case and eventually make the system corrupted.
This patch fixes the issue both in syscall_get_arguments() and
syscall_set_arguments().

Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/include/asm/syscall.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/include/asm/syscall.h b/arch/arm64/include/asm/syscall.h
index 89c047f9a971..70ba9d4ee978 100644
--- a/arch/arm64/include/asm/syscall.h
+++ b/arch/arm64/include/asm/syscall.h
@@ -59,6 +59,9 @@ static inline void syscall_get_arguments(struct task_struct *task,
 					 unsigned int i, unsigned int n,
 					 unsigned long *args)
 {
+	if (n == 0)
+		return;
+
 	if (i + n > SYSCALL_MAX_ARGS) {
 		unsigned long *args_bad = args + SYSCALL_MAX_ARGS - i;
 		unsigned int n_bad = n + i - SYSCALL_MAX_ARGS;
@@ -82,6 +85,9 @@ static inline void syscall_set_arguments(struct task_struct *task,
 					 unsigned int i, unsigned int n,
 					 const unsigned long *args)
 {
+	if (n == 0)
+		return;
+
 	if (i + n > SYSCALL_MAX_ARGS) {
 		pr_warning("%s called with max args %d, handling only %d\n",
 			   __func__, i + n, SYSCALL_MAX_ARGS);
-- 
cgit 


From a690876385f29c740798cb99aa2511217ecd9954 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Thu, 15 Aug 2013 12:30:25 +0200
Subject: scripts/coccinelle/api: remove devm_request_and_ioremap.cocci

Use of this function is discouraged in favour of
devm_ioremap_resource(). Don't advertise it.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 .../coccinelle/api/devm_request_and_ioremap.cocci  | 105 ---------------------
 1 file changed, 105 deletions(-)
 delete mode 100644 scripts/coccinelle/api/devm_request_and_ioremap.cocci

diff --git a/scripts/coccinelle/api/devm_request_and_ioremap.cocci b/scripts/coccinelle/api/devm_request_and_ioremap.cocci
deleted file mode 100644
index 562ec88b6352..000000000000
--- a/scripts/coccinelle/api/devm_request_and_ioremap.cocci
+++ /dev/null
@@ -1,105 +0,0 @@
-/// Reimplement a call to devm_request_mem_region followed by a call to ioremap
-/// or ioremap_nocache by a call to devm_request_and_ioremap.
-/// Devm_request_and_ioremap was introduced in
-/// 72f8c0bfa0de64c68ee59f40eb9b2683bffffbb0.  It makes the code much more
-/// concise.
-///
-///
-// Confidence: High
-// Copyright: (C) 2011 Julia Lawall, INRIA/LIP6.  GPLv2.
-// Copyright: (C) 2011 Gilles Muller, INRIA/LiP6.  GPLv2.
-// URL: http://coccinelle.lip6.fr/
-// Comments:
-// Options: --no-includes --include-headers
-
-virtual patch
-virtual org
-virtual report
-virtual context
-
-@nm@
-expression myname;
-identifier i;
-@@
-
-struct platform_driver i = { .driver = { .name = myname } };
-
-@depends on patch@
-expression dev,res,size;
-@@
-
--if (!devm_request_mem_region(dev, res->start, size,
--                              \(res->name\|dev_name(dev)\))) {
--   ...
--   return ...;
--}
-... when != res->start
-(
--devm_ioremap(dev,res->start,size)
-+devm_request_and_ioremap(dev,res)
-|
--devm_ioremap_nocache(dev,res->start,size)
-+devm_request_and_ioremap(dev,res)
-)
-... when any
-    when != res->start
-
-// this rule is separate from the previous one, because a single file can
-// have multiple values of myname
-@depends on patch@
-expression dev,res,size;
-expression nm.myname;
-@@
-
--if (!devm_request_mem_region(dev, res->start, size,myname)) {
--   ...
--   return ...;
--}
-... when != res->start
-(
--devm_ioremap(dev,res->start,size)
-+devm_request_and_ioremap(dev,res)
-|
--devm_ioremap_nocache(dev,res->start,size)
-+devm_request_and_ioremap(dev,res)
-)
-... when any
-    when != res->start
-
-
-@pb depends on org || report || context@
-expression dev,res,size;
-expression nm.myname;
-position p1,p2;
-@@
-
-*if
-  (!devm_request_mem_region@p1(dev, res->start, size,
-                              \(res->name\|dev_name(dev)\|myname\))) {
-   ...
-   return ...;
-}
-... when != res->start
-(
-*devm_ioremap@p2(dev,res->start,size)
-|
-*devm_ioremap_nocache@p2(dev,res->start,size)
-)
-... when any
-    when != res->start
-
-@script:python depends on org@
-p1 << pb.p1;
-p2 << pb.p2;
-@@
-
-cocci.print_main("INFO: replace by devm_request_and_ioremap",p1)
-cocci.print_secs("",p2)
-
-@script:python depends on report@
-p1 << pb.p1;
-p2 << pb.p2;
-@@
-
-msg = "INFO: devm_request_mem_region followed by ioremap on line %s can be replaced by devm_request_and_ioremap" % (p2[0].line)
-coccilib.report.print_report(p1[0],msg)
-- 
cgit 


From d0015fdd3d2c9cc5927637c74a66d85e8bcacf1c Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 3 Sep 2013 11:10:23 +0200
Subject: batman-adv: provide orig_node routing API

Some operations executed on an orig_node depends on the
current routing algorithm being used. To easily make this
mechanism routing algorithm agnostic add a orig_node
specific API that each algorithm can populate with its own
routines.

Such routines are then invoked by the code when needed,
without knowing which routing algorithm is currently in use

With this patch 3 API functions are added:
- orig_free (to free routing depending internal structs)
- orig_add_if (to change the inner state of an orig_node
  when a new hard interface is added)
- orig_del_if (to change the inner state of an orig_node
  when an hard interface is removed)

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/bat_iv_ogm.c | 126 ++++++++++++++++++++++++++++++++++++++++++++
 net/batman-adv/originator.c | 102 +++++------------------------------
 net/batman-adv/types.h      |  11 ++++
 3 files changed, 151 insertions(+), 88 deletions(-)

diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 7cdc3943103a..a2b480a90872 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -87,6 +87,129 @@ static uint8_t batadv_ring_buffer_avg(const uint8_t lq_recv[])
 	return (uint8_t)(sum / count);
 }
 
+/**
+ * batadv_iv_ogm_orig_free - free the private resources allocated for this
+ *  orig_node
+ * @orig_node: the orig_node for which the resources have to be free'd
+ */
+static void batadv_iv_ogm_orig_free(struct batadv_orig_node *orig_node)
+{
+	kfree(orig_node->bat_iv.bcast_own);
+	kfree(orig_node->bat_iv.bcast_own_sum);
+}
+
+/**
+ * batadv_iv_ogm_orig_add_if - change the private structures of the orig_node to
+ *  include the new hard-interface
+ * @orig_node: the orig_node that has to be changed
+ * @max_if_num: the current amount of interfaces
+ *
+ * Returns 0 on success, a negative error code otherwise.
+ */
+static int batadv_iv_ogm_orig_add_if(struct batadv_orig_node *orig_node,
+				     int max_if_num)
+{
+	void *data_ptr;
+	size_t data_size, old_size;
+	int ret = -ENOMEM;
+
+	spin_lock_bh(&orig_node->bat_iv.ogm_cnt_lock);
+
+	data_size = max_if_num * sizeof(unsigned long) * BATADV_NUM_WORDS;
+	old_size = (max_if_num - 1) * sizeof(unsigned long) * BATADV_NUM_WORDS;
+	data_ptr = kmalloc(data_size, GFP_ATOMIC);
+	if (!data_ptr)
+		goto unlock;
+
+	memcpy(data_ptr, orig_node->bat_iv.bcast_own, old_size);
+	kfree(orig_node->bat_iv.bcast_own);
+	orig_node->bat_iv.bcast_own = data_ptr;
+
+	data_ptr = kmalloc(max_if_num * sizeof(uint8_t), GFP_ATOMIC);
+	if (!data_ptr) {
+		kfree(orig_node->bat_iv.bcast_own);
+		goto unlock;
+	}
+
+	memcpy(data_ptr, orig_node->bat_iv.bcast_own_sum,
+	       (max_if_num - 1) * sizeof(uint8_t));
+	kfree(orig_node->bat_iv.bcast_own_sum);
+	orig_node->bat_iv.bcast_own_sum = data_ptr;
+
+	ret = 0;
+
+unlock:
+	spin_unlock_bh(&orig_node->bat_iv.ogm_cnt_lock);
+
+	return ret;
+}
+
+/**
+ * batadv_iv_ogm_orig_del_if - change the private structures of the orig_node to
+ *  exclude the removed interface
+ * @orig_node: the orig_node that has to be changed
+ * @max_if_num: the current amount of interfaces
+ * @del_if_num: the index of the interface being removed
+ *
+ * Returns 0 on success, a negative error code otherwise.
+ */
+static int batadv_iv_ogm_orig_del_if(struct batadv_orig_node *orig_node,
+				     int max_if_num, int del_if_num)
+{
+	int chunk_size,  ret = -ENOMEM, if_offset;
+	void *data_ptr = NULL;
+
+	spin_lock_bh(&orig_node->bat_iv.ogm_cnt_lock);
+
+	/* last interface was removed */
+	if (max_if_num == 0)
+		goto free_bcast_own;
+
+	chunk_size = sizeof(unsigned long) * BATADV_NUM_WORDS;
+	data_ptr = kmalloc(max_if_num * chunk_size, GFP_ATOMIC);
+	if (!data_ptr)
+		goto unlock;
+
+	/* copy first part */
+	memcpy(data_ptr, orig_node->bat_iv.bcast_own, del_if_num * chunk_size);
+
+	/* copy second part */
+	memcpy((char *)data_ptr + del_if_num * chunk_size,
+	       orig_node->bat_iv.bcast_own + ((del_if_num + 1) * chunk_size),
+	       (max_if_num - del_if_num) * chunk_size);
+
+free_bcast_own:
+	kfree(orig_node->bat_iv.bcast_own);
+	orig_node->bat_iv.bcast_own = data_ptr;
+
+	if (max_if_num == 0)
+		goto free_own_sum;
+
+	data_ptr = kmalloc(max_if_num * sizeof(uint8_t), GFP_ATOMIC);
+	if (!data_ptr) {
+		kfree(orig_node->bat_iv.bcast_own);
+		goto unlock;
+	}
+
+	memcpy(data_ptr, orig_node->bat_iv.bcast_own_sum,
+	       del_if_num * sizeof(uint8_t));
+
+	if_offset = (del_if_num + 1) * sizeof(uint8_t);
+	memcpy((char *)data_ptr + del_if_num * sizeof(uint8_t),
+	       orig_node->bat_iv.bcast_own_sum + if_offset,
+	       (max_if_num - del_if_num) * sizeof(uint8_t));
+
+free_own_sum:
+	kfree(orig_node->bat_iv.bcast_own_sum);
+	orig_node->bat_iv.bcast_own_sum = data_ptr;
+
+	ret = 0;
+unlock:
+	spin_unlock_bh(&orig_node->bat_iv.ogm_cnt_lock);
+
+	return ret;
+}
+
 /**
  * batadv_iv_ogm_orig_get - retrieve or create (if does not exist) an originator
  * @bat_priv: the bat priv with all the soft interface information
@@ -1522,6 +1645,9 @@ static struct batadv_algo_ops batadv_batman_iv __read_mostly = {
 	.bat_neigh_cmp = batadv_iv_ogm_neigh_cmp,
 	.bat_neigh_is_equiv_or_better = batadv_iv_ogm_neigh_is_eob,
 	.bat_orig_print = batadv_iv_ogm_orig_print,
+	.bat_orig_free = batadv_iv_ogm_orig_free,
+	.bat_orig_add_if = batadv_iv_ogm_orig_add_if,
+	.bat_orig_del_if = batadv_iv_ogm_orig_del_if,
 };
 
 int __init batadv_iv_init(void)
diff --git a/net/batman-adv/originator.c b/net/batman-adv/originator.c
index 9cee053f6a5c..8ab14340d10f 100644
--- a/net/batman-adv/originator.c
+++ b/net/batman-adv/originator.c
@@ -241,9 +241,10 @@ static void batadv_orig_node_free_rcu(struct rcu_head *rcu)
 	batadv_tt_global_del_orig(orig_node->bat_priv, orig_node, -1,
 				  "originator timed out");
 
+	if (orig_node->bat_priv->bat_algo_ops->bat_orig_free)
+		orig_node->bat_priv->bat_algo_ops->bat_orig_free(orig_node);
+
 	kfree(orig_node->tt_buff);
-	kfree(orig_node->bat_iv.bcast_own);
-	kfree(orig_node->bat_iv.bcast_own_sum);
 	kfree(orig_node);
 }
 
@@ -538,38 +539,11 @@ int batadv_orig_seq_print_text(struct seq_file *seq, void *offset)
 	return 0;
 }
 
-static int batadv_orig_node_add_if(struct batadv_orig_node *orig_node,
-				   int max_if_num)
-{
-	void *data_ptr;
-	size_t data_size, old_size;
-
-	data_size = max_if_num * sizeof(unsigned long) * BATADV_NUM_WORDS;
-	old_size = (max_if_num - 1) * sizeof(unsigned long) * BATADV_NUM_WORDS;
-	data_ptr = kmalloc(data_size, GFP_ATOMIC);
-	if (!data_ptr)
-		return -ENOMEM;
-
-	memcpy(data_ptr, orig_node->bat_iv.bcast_own, old_size);
-	kfree(orig_node->bat_iv.bcast_own);
-	orig_node->bat_iv.bcast_own = data_ptr;
-
-	data_ptr = kmalloc(max_if_num * sizeof(uint8_t), GFP_ATOMIC);
-	if (!data_ptr)
-		return -ENOMEM;
-
-	memcpy(data_ptr, orig_node->bat_iv.bcast_own_sum,
-	       (max_if_num - 1) * sizeof(uint8_t));
-	kfree(orig_node->bat_iv.bcast_own_sum);
-	orig_node->bat_iv.bcast_own_sum = data_ptr;
-
-	return 0;
-}
-
 int batadv_orig_hash_add_if(struct batadv_hard_iface *hard_iface,
 			    int max_if_num)
 {
 	struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
+	struct batadv_algo_ops *bao = bat_priv->bat_algo_ops;
 	struct batadv_hashtable *hash = bat_priv->orig_hash;
 	struct hlist_head *head;
 	struct batadv_orig_node *orig_node;
@@ -584,10 +558,10 @@ int batadv_orig_hash_add_if(struct batadv_hard_iface *hard_iface,
 
 		rcu_read_lock();
 		hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
-			spin_lock_bh(&orig_node->bat_iv.ogm_cnt_lock);
-			ret = batadv_orig_node_add_if(orig_node, max_if_num);
-			spin_unlock_bh(&orig_node->bat_iv.ogm_cnt_lock);
-
+			ret = 0;
+			if (bao->bat_orig_add_if)
+				ret = bao->bat_orig_add_if(orig_node,
+							   max_if_num);
 			if (ret == -ENOMEM)
 				goto err;
 		}
@@ -601,55 +575,6 @@ err:
 	return -ENOMEM;
 }
 
-static int batadv_orig_node_del_if(struct batadv_orig_node *orig_node,
-				   int max_if_num, int del_if_num)
-{
-	int chunk_size, if_offset;
-	void *data_ptr = NULL;
-
-	/* last interface was removed */
-	if (max_if_num == 0)
-		goto free_bcast_own;
-
-	chunk_size = sizeof(unsigned long) * BATADV_NUM_WORDS;
-	data_ptr = kmalloc(max_if_num * chunk_size, GFP_ATOMIC);
-	if (!data_ptr)
-		return -ENOMEM;
-
-	/* copy first part */
-	memcpy(data_ptr, orig_node->bat_iv.bcast_own, del_if_num * chunk_size);
-
-	/* copy second part */
-	memcpy((char *)data_ptr + del_if_num * chunk_size,
-	       orig_node->bat_iv.bcast_own + ((del_if_num + 1) * chunk_size),
-	       (max_if_num - del_if_num) * chunk_size);
-
-free_bcast_own:
-	kfree(orig_node->bat_iv.bcast_own);
-	orig_node->bat_iv.bcast_own = data_ptr;
-
-	if (max_if_num == 0)
-		goto free_own_sum;
-
-	data_ptr = kmalloc(max_if_num * sizeof(uint8_t), GFP_ATOMIC);
-	if (!data_ptr)
-		return -ENOMEM;
-
-	memcpy(data_ptr, orig_node->bat_iv.bcast_own_sum,
-	       del_if_num * sizeof(uint8_t));
-
-	if_offset = (del_if_num + 1) * sizeof(uint8_t);
-	memcpy((char *)data_ptr + del_if_num * sizeof(uint8_t),
-	       orig_node->bat_iv.bcast_own_sum + if_offset,
-	       (max_if_num - del_if_num) * sizeof(uint8_t));
-
-free_own_sum:
-	kfree(orig_node->bat_iv.bcast_own_sum);
-	orig_node->bat_iv.bcast_own_sum = data_ptr;
-
-	return 0;
-}
-
 int batadv_orig_hash_del_if(struct batadv_hard_iface *hard_iface,
 			    int max_if_num)
 {
@@ -658,6 +583,7 @@ int batadv_orig_hash_del_if(struct batadv_hard_iface *hard_iface,
 	struct hlist_head *head;
 	struct batadv_hard_iface *hard_iface_tmp;
 	struct batadv_orig_node *orig_node;
+	struct batadv_algo_ops *bao = bat_priv->bat_algo_ops;
 	uint32_t i;
 	int ret;
 
@@ -669,11 +595,11 @@ int batadv_orig_hash_del_if(struct batadv_hard_iface *hard_iface,
 
 		rcu_read_lock();
 		hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
-			spin_lock_bh(&orig_node->bat_iv.ogm_cnt_lock);
-			ret = batadv_orig_node_del_if(orig_node, max_if_num,
-						      hard_iface->if_num);
-			spin_unlock_bh(&orig_node->bat_iv.ogm_cnt_lock);
-
+			ret = 0;
+			if (bao->bat_orig_del_if)
+				ret = bao->bat_orig_del_if(orig_node,
+							   max_if_num,
+							   hard_iface->if_num);
 			if (ret == -ENOMEM)
 				goto err;
 		}
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index d0e64d269da4..672a8134d3ba 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -996,6 +996,12 @@ struct batadv_forw_packet {
  * @bat_neigh_is_equiv_or_better: check if neigh1 is equally good or
  *  better than neigh2 from the metric prospective
  * @bat_orig_print: print the originator table (optional)
+ * @bat_orig_free: free the resources allocated by the routing algorithm for an
+ *  orig_node object
+ * @bat_orig_add_if: ask the routing algorithm to apply the needed changes to
+ *  the orig_node due to a new hard-interface being added into the mesh
+ * @bat_orig_del_if: ask the routing algorithm to apply the needed changes to
+ *  the orig_node due to an hard-interface being removed from the mesh
  */
 struct batadv_algo_ops {
 	struct hlist_node list;
@@ -1012,6 +1018,11 @@ struct batadv_algo_ops {
 					     struct batadv_neigh_node *neigh2);
 	/* orig_node handling API */
 	void (*bat_orig_print)(struct batadv_priv *priv, struct seq_file *seq);
+	void (*bat_orig_free)(struct batadv_orig_node *orig_node);
+	int (*bat_orig_add_if)(struct batadv_orig_node *orig_node,
+			       int max_if_num);
+	int (*bat_orig_del_if)(struct batadv_orig_node *orig_node,
+			       int max_if_num, int del_if_num);
 };
 
 /**
-- 
cgit 


From 4627456a77782026ab60c4a16435b089bb444fce Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Tue, 3 Sep 2013 11:10:24 +0200
Subject: batman-adv: adapt the TT component to use the new API functions

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
---
 net/batman-adv/translation-table.c | 35 ++++++++++++++++++++++++-----------
 1 file changed, 24 insertions(+), 11 deletions(-)

diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 1d5a4f5be899..4c28251dd8e6 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -1280,18 +1280,20 @@ out:
 }
 
 /* batadv_transtable_best_orig - Get best originator list entry from tt entry
+ * @bat_priv: the bat priv with all the soft interface information
  * @tt_global_entry: global translation table entry to be analyzed
  *
  * This functon assumes the caller holds rcu_read_lock().
  * Returns best originator list entry or NULL on errors.
  */
 static struct batadv_tt_orig_list_entry *
-batadv_transtable_best_orig(struct batadv_tt_global_entry *tt_global_entry)
+batadv_transtable_best_orig(struct batadv_priv *bat_priv,
+			    struct batadv_tt_global_entry *tt_global_entry)
 {
-	struct batadv_neigh_node *router = NULL;
+	struct batadv_neigh_node *router, *best_router = NULL;
+	struct batadv_algo_ops *bao = bat_priv->bat_algo_ops;
 	struct hlist_head *head;
 	struct batadv_tt_orig_list_entry *orig_entry, *best_entry = NULL;
-	int best_tq = 0;
 
 	head = &tt_global_entry->orig_list;
 	hlist_for_each_entry_rcu(orig_entry, head, list) {
@@ -1299,26 +1301,37 @@ batadv_transtable_best_orig(struct batadv_tt_global_entry *tt_global_entry)
 		if (!router)
 			continue;
 
-		if (router->bat_iv.tq_avg > best_tq) {
-			best_entry = orig_entry;
-			best_tq = router->bat_iv.tq_avg;
+		if (best_router &&
+		    bao->bat_neigh_cmp(router, best_router) <= 0) {
+			batadv_neigh_node_free_ref(router);
+			continue;
 		}
 
-		batadv_neigh_node_free_ref(router);
+		/* release the refcount for the "old" best */
+		if (best_router)
+			batadv_neigh_node_free_ref(best_router);
+
+		best_entry = orig_entry;
+		best_router = router;
 	}
 
+	if (best_router)
+		batadv_neigh_node_free_ref(best_router);
+
 	return best_entry;
 }
 
 /* batadv_tt_global_print_entry - print all orig nodes who announce the address
  * for this global entry
+ * @bat_priv: the bat priv with all the soft interface information
  * @tt_global_entry: global translation table entry to be printed
  * @seq: debugfs table seq_file struct
  *
  * This functon assumes the caller holds rcu_read_lock().
  */
 static void
-batadv_tt_global_print_entry(struct batadv_tt_global_entry *tt_global_entry,
+batadv_tt_global_print_entry(struct batadv_priv *bat_priv,
+			     struct batadv_tt_global_entry *tt_global_entry,
 			     struct seq_file *seq)
 {
 	struct batadv_tt_orig_list_entry *orig_entry, *best_entry;
@@ -1331,7 +1344,7 @@ batadv_tt_global_print_entry(struct batadv_tt_global_entry *tt_global_entry,
 	tt_common_entry = &tt_global_entry->common;
 	flags = tt_common_entry->flags;
 
-	best_entry = batadv_transtable_best_orig(tt_global_entry);
+	best_entry = batadv_transtable_best_orig(bat_priv, tt_global_entry);
 	if (best_entry) {
 		vlan = batadv_orig_node_vlan_get(best_entry->orig_node,
 						 tt_common_entry->vid);
@@ -1420,7 +1433,7 @@ int batadv_tt_global_seq_print_text(struct seq_file *seq, void *offset)
 			tt_global = container_of(tt_common_entry,
 						 struct batadv_tt_global_entry,
 						 common);
-			batadv_tt_global_print_entry(tt_global, seq);
+			batadv_tt_global_print_entry(bat_priv, tt_global, seq);
 		}
 		rcu_read_unlock();
 	}
@@ -1808,7 +1821,7 @@ struct batadv_orig_node *batadv_transtable_search(struct batadv_priv *bat_priv,
 		goto out;
 
 	rcu_read_lock();
-	best_entry = batadv_transtable_best_orig(tt_global_entry);
+	best_entry = batadv_transtable_best_orig(bat_priv, tt_global_entry);
 	/* found anything? */
 	if (best_entry)
 		orig_node = best_entry->orig_node;
-- 
cgit 


From a19d3d85e1b854e4a483a55d740a42458085560d Mon Sep 17 00:00:00 2001
From: Marek Lindner <lindner_marek@yahoo.de>
Date: Mon, 27 May 2013 15:33:25 +0800
Subject: batman-adv: limit local translation table max size

The local translation table size is limited by what can be
transferred from one node to another via a full table request.

The number of entries fitting into a full table request depend
on whether the fragmentation is enabled or not. Therefore this
patch introduces a max table size check and refuses to add
more local clients when that size is reached. Moreover, if the
max full table packet size changes (MTU change or fragmentation
is disabled) the local table is downsized instantaneously.

Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Acked-by: Antonio Quartulli <ordex@autistici.org>
---
 net/batman-adv/hard-interface.c    |  41 ++++++----
 net/batman-adv/soft-interface.c    |  12 ++-
 net/batman-adv/translation-table.c | 150 +++++++++++++++++++++++++++++++++----
 net/batman-adv/translation-table.h |   3 +-
 net/batman-adv/types.h             |   3 +
 5 files changed, 173 insertions(+), 36 deletions(-)

diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index c5f871f218c6..c60d3ed40257 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -266,16 +266,9 @@ static void batadv_check_known_mac_addr(const struct net_device *net_dev)
 
 int batadv_hardif_min_mtu(struct net_device *soft_iface)
 {
-	const struct batadv_priv *bat_priv = netdev_priv(soft_iface);
+	struct batadv_priv *bat_priv = netdev_priv(soft_iface);
 	const struct batadv_hard_iface *hard_iface;
-	/* allow big frames if all devices are capable to do so
-	 * (have MTU > 1500 + batadv_max_header_len())
-	 */
 	int min_mtu = ETH_DATA_LEN;
-	int max_header_len = batadv_max_header_len();
-
-	if (atomic_read(&bat_priv->fragmentation))
-		goto out;
 
 	rcu_read_lock();
 	list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {
@@ -286,22 +279,40 @@ int batadv_hardif_min_mtu(struct net_device *soft_iface)
 		if (hard_iface->soft_iface != soft_iface)
 			continue;
 
-		min_mtu = min_t(int, hard_iface->net_dev->mtu - max_header_len,
-				min_mtu);
+		min_mtu = min_t(int, hard_iface->net_dev->mtu, min_mtu);
 	}
 	rcu_read_unlock();
+
+	atomic_set(&bat_priv->packet_size_max, min_mtu);
+
+	if (atomic_read(&bat_priv->fragmentation) == 0)
+		goto out;
+
+	/* with fragmentation enabled the maximum size of internally generated
+	 * packets such as translation table exchanges or tvlv containers, etc
+	 * has to be calculated
+	 */
+	min_mtu = min_t(int, min_mtu, BATADV_FRAG_MAX_FRAG_SIZE);
+	min_mtu -= sizeof(struct batadv_frag_packet);
+	min_mtu *= BATADV_FRAG_MAX_FRAGMENTS;
+	atomic_set(&bat_priv->packet_size_max, min_mtu);
+
+	/* with fragmentation enabled we can fragment external packets easily */
+	min_mtu = min_t(int, min_mtu, ETH_DATA_LEN);
+
 out:
-	return min_mtu;
+	return min_mtu - batadv_max_header_len();
 }
 
 /* adjusts the MTU if a new interface with a smaller MTU appeared. */
 void batadv_update_min_mtu(struct net_device *soft_iface)
 {
-	int min_mtu;
+	soft_iface->mtu = batadv_hardif_min_mtu(soft_iface);
 
-	min_mtu = batadv_hardif_min_mtu(soft_iface);
-	if (soft_iface->mtu != min_mtu)
-		soft_iface->mtu = min_mtu;
+	/* Check if the local translate table should be cleaned up to match a
+	 * new (and smaller) MTU.
+	 */
+	batadv_tt_local_resize_to_mtu(soft_iface);
 }
 
 static void
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index e70f530d8568..36f050876f82 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -166,7 +166,7 @@ static int batadv_interface_tx(struct sk_buff *skb,
 	unsigned int header_len = 0;
 	int data_len = skb->len, ret;
 	unsigned long brd_delay = 1;
-	bool do_bcast = false;
+	bool do_bcast = false, client_added;
 	unsigned short vid;
 	uint32_t seqno;
 
@@ -196,9 +196,12 @@ static int batadv_interface_tx(struct sk_buff *skb,
 	ethhdr = (struct ethhdr *)skb->data;
 
 	/* Register the client MAC in the transtable */
-	if (!is_multicast_ether_addr(ethhdr->h_source))
-		batadv_tt_local_add(soft_iface, ethhdr->h_source, vid,
-				    skb->skb_iif);
+	if (!is_multicast_ether_addr(ethhdr->h_source)) {
+		client_added = batadv_tt_local_add(soft_iface, ethhdr->h_source,
+						   vid, skb->skb_iif);
+		if (!client_added)
+			goto dropped;
+	}
 
 	/* don't accept stp packets. STP does not help in meshes.
 	 * better use the bridge loop avoidance ...
@@ -674,6 +677,7 @@ static int batadv_softif_init_late(struct net_device *dev)
 	atomic_set(&bat_priv->log_level, 0);
 #endif
 	atomic_set(&bat_priv->fragmentation, 1);
+	atomic_set(&bat_priv->packet_size_max, ETH_DATA_LEN);
 	atomic_set(&bat_priv->bcast_queue_left, BATADV_BCAST_QUEUE_LEN);
 	atomic_set(&bat_priv->batman_queue_left, BATADV_BATMAN_QUEUE_LEN);
 
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 4c28251dd8e6..a3c965dd1d96 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -401,6 +401,35 @@ static uint16_t batadv_tt_entries(uint16_t tt_len)
 	return tt_len / batadv_tt_len(1);
 }
 
+/**
+ * batadv_tt_local_table_transmit_size - calculates the local translation table
+ *  size when transmitted over the air
+ * @bat_priv: the bat priv with all the soft interface information
+ *
+ * Returns local translation table size in bytes.
+ */
+static int batadv_tt_local_table_transmit_size(struct batadv_priv *bat_priv)
+{
+	uint16_t num_vlan = 0, tt_local_entries = 0;
+	struct batadv_softif_vlan *vlan;
+	int hdr_size;
+
+	rcu_read_lock();
+	hlist_for_each_entry_rcu(vlan, &bat_priv->softif_vlan_list, list) {
+		num_vlan++;
+		tt_local_entries += atomic_read(&vlan->tt.num_entries);
+	}
+	rcu_read_unlock();
+
+	/* header size of tvlv encapsulated tt response payload */
+	hdr_size = sizeof(struct batadv_unicast_tvlv_packet);
+	hdr_size += sizeof(struct batadv_tvlv_hdr);
+	hdr_size += sizeof(struct batadv_tvlv_tt_data);
+	hdr_size += num_vlan * sizeof(struct batadv_tvlv_tt_vlan_data);
+
+	return hdr_size + batadv_tt_len(tt_local_entries);
+}
+
 static int batadv_tt_local_init(struct batadv_priv *bat_priv)
 {
 	if (bat_priv->tt.local_hash)
@@ -439,8 +468,10 @@ static void batadv_tt_global_free(struct batadv_priv *bat_priv,
  * @vid: VLAN identifier
  * @ifindex: index of the interface where the client is connected to (useful to
  *  identify wireless clients)
+ *
+ * Returns true if the client was successfully added, false otherwise.
  */
-void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
+bool batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
 			 unsigned short vid, int ifindex)
 {
 	struct batadv_priv *bat_priv = netdev_priv(soft_iface);
@@ -448,8 +479,8 @@ void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
 	struct batadv_tt_global_entry *tt_global;
 	struct hlist_head *head;
 	struct batadv_tt_orig_list_entry *orig_entry;
-	int hash_added;
-	bool roamed_back = false;
+	int hash_added, table_size, packet_size_max;
+	bool ret = false, roamed_back = false;
 
 	tt_local = batadv_tt_local_hash_find(bat_priv, addr, vid);
 	tt_global = batadv_tt_global_hash_find(bat_priv, addr, vid);
@@ -484,6 +515,17 @@ void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
 		goto check_roaming;
 	}
 
+	/* Ignore the client if we cannot send it in a full table response. */
+	table_size = batadv_tt_local_table_transmit_size(bat_priv);
+	table_size += batadv_tt_len(1);
+	packet_size_max = atomic_read(&bat_priv->packet_size_max);
+	if (table_size > packet_size_max) {
+		net_ratelimited_function(batadv_info, soft_iface,
+					 "Local translation table size (%i) exceeds maximum packet size (%i); Ignoring new local tt entry: %pM\n",
+					 table_size, packet_size_max, addr);
+		goto out;
+	}
+
 	tt_local = kmalloc(sizeof(*tt_local), GFP_ATOMIC);
 	if (!tt_local)
 		goto out;
@@ -550,11 +592,14 @@ check_roaming:
 		}
 	}
 
+	ret = true;
+
 out:
 	if (tt_local)
 		batadv_tt_local_entry_free_ref(tt_local);
 	if (tt_global)
 		batadv_tt_global_entry_free_ref(tt_global);
+	return ret;
 }
 
 /**
@@ -926,8 +971,16 @@ out:
 	return curr_flags;
 }
 
+/**
+ * batadv_tt_local_purge_list - purge inactive tt local entries
+ * @bat_priv: the bat priv with all the soft interface information
+ * @head: pointer to the list containing the local tt entries
+ * @timeout: parameter deciding whether a given tt local entry is considered
+ *  inactive or not
+ */
 static void batadv_tt_local_purge_list(struct batadv_priv *bat_priv,
-				       struct hlist_head *head)
+				       struct hlist_head *head,
+				       int timeout)
 {
 	struct batadv_tt_local_entry *tt_local_entry;
 	struct batadv_tt_common_entry *tt_common_entry;
@@ -945,8 +998,7 @@ static void batadv_tt_local_purge_list(struct batadv_priv *bat_priv,
 		if (tt_local_entry->common.flags & BATADV_TT_CLIENT_PENDING)
 			continue;
 
-		if (!batadv_has_timed_out(tt_local_entry->last_seen,
-					  BATADV_TT_LOCAL_TIMEOUT))
+		if (!batadv_has_timed_out(tt_local_entry->last_seen, timeout))
 			continue;
 
 		batadv_tt_local_set_pending(bat_priv, tt_local_entry,
@@ -954,7 +1006,14 @@ static void batadv_tt_local_purge_list(struct batadv_priv *bat_priv,
 	}
 }
 
-static void batadv_tt_local_purge(struct batadv_priv *bat_priv)
+/**
+ * batadv_tt_local_purge - purge inactive tt local entries
+ * @bat_priv: the bat priv with all the soft interface information
+ * @timeout: parameter deciding whether a given tt local entry is considered
+ *  inactive or not
+ */
+static void batadv_tt_local_purge(struct batadv_priv *bat_priv,
+				  int timeout)
 {
 	struct batadv_hashtable *hash = bat_priv->tt.local_hash;
 	struct hlist_head *head;
@@ -966,7 +1025,7 @@ static void batadv_tt_local_purge(struct batadv_priv *bat_priv)
 		list_lock = &hash->list_locks[i];
 
 		spin_lock_bh(list_lock);
-		batadv_tt_local_purge_list(bat_priv, head);
+		batadv_tt_local_purge_list(bat_priv, head, timeout);
 		spin_unlock_bh(list_lock);
 	}
 }
@@ -2383,6 +2442,15 @@ static bool batadv_send_other_tt_response(struct batadv_priv *bat_priv,
 					req_dst_orig_node);
 	}
 
+	/* Don't send the response, if larger than fragmented packet. */
+	tt_len = sizeof(struct batadv_unicast_tvlv_packet) + tvlv_len;
+	if (tt_len > atomic_read(&bat_priv->packet_size_max)) {
+		net_ratelimited_function(batadv_info, bat_priv->soft_iface,
+					 "Ignoring TT_REQUEST from %pM; Response size exceeds max packet size.\n",
+					 res_dst_orig_node->orig);
+		goto out;
+	}
+
 	tvlv_tt_data->flags = BATADV_TT_RESPONSE;
 	tvlv_tt_data->ttvn = req_ttvn;
 
@@ -2859,7 +2927,7 @@ static void batadv_tt_purge(struct work_struct *work)
 	priv_tt = container_of(delayed_work, struct batadv_priv_tt, work);
 	bat_priv = container_of(priv_tt, struct batadv_priv, tt);
 
-	batadv_tt_local_purge(bat_priv);
+	batadv_tt_local_purge(bat_priv, BATADV_TT_LOCAL_TIMEOUT);
 	batadv_tt_global_purge(bat_priv);
 	batadv_tt_req_purge(bat_priv);
 	batadv_tt_roam_purge(bat_priv);
@@ -2972,18 +3040,18 @@ static void batadv_tt_local_purge_pending_clients(struct batadv_priv *bat_priv)
 }
 
 /**
- * batadv_tt_local_commit_changes - commit all pending local tt changes which
- *  have been queued in the time since the last commit
+ * batadv_tt_local_commit_changes_nolock - commit all pending local tt changes
+ *  which have been queued in the time since the last commit
  * @bat_priv: the bat priv with all the soft interface information
+ *
+ * Caller must hold tt->commit_lock.
  */
-void batadv_tt_local_commit_changes(struct batadv_priv *bat_priv)
+static void batadv_tt_local_commit_changes_nolock(struct batadv_priv *bat_priv)
 {
-	spin_lock_bh(&bat_priv->tt.commit_lock);
-
 	if (atomic_read(&bat_priv->tt.local_changes) < 1) {
 		if (!batadv_atomic_dec_not_zero(&bat_priv->tt.ogm_append_cnt))
 			batadv_tt_tvlv_container_update(bat_priv);
-		goto out;
+		return;
 	}
 
 	batadv_tt_local_set_flags(bat_priv, BATADV_TT_CLIENT_NEW, false, true);
@@ -3000,8 +3068,17 @@ void batadv_tt_local_commit_changes(struct batadv_priv *bat_priv)
 	/* reset the sending counter */
 	atomic_set(&bat_priv->tt.ogm_append_cnt, BATADV_TT_OGM_APPEND_MAX);
 	batadv_tt_tvlv_container_update(bat_priv);
+}
 
-out:
+/**
+ * batadv_tt_local_commit_changes - commit all pending local tt changes which
+ *  have been queued in the time since the last commit
+ * @bat_priv: the bat priv with all the soft interface information
+ */
+void batadv_tt_local_commit_changes(struct batadv_priv *bat_priv)
+{
+	spin_lock_bh(&bat_priv->tt.commit_lock);
+	batadv_tt_local_commit_changes_nolock(bat_priv);
 	spin_unlock_bh(&bat_priv->tt.commit_lock);
 }
 
@@ -3196,6 +3273,47 @@ out:
 	return ret;
 }
 
+/**
+ * batadv_tt_local_resize_to_mtu - resize the local translation table fit the
+ *  maximum packet size that can be transported through the mesh
+ * @soft_iface: netdev struct of the mesh interface
+ *
+ * Remove entries older than 'timeout' and half timeout if more entries need
+ * to be removed.
+ */
+void batadv_tt_local_resize_to_mtu(struct net_device *soft_iface)
+{
+	struct batadv_priv *bat_priv = netdev_priv(soft_iface);
+	int packet_size_max = atomic_read(&bat_priv->packet_size_max);
+	int table_size, timeout = BATADV_TT_LOCAL_TIMEOUT / 2;
+	bool reduced = false;
+
+	spin_lock_bh(&bat_priv->tt.commit_lock);
+
+	while (true) {
+		table_size = batadv_tt_local_table_transmit_size(bat_priv);
+		if (packet_size_max >= table_size)
+			break;
+
+		batadv_tt_local_purge(bat_priv, timeout);
+		batadv_tt_local_purge_pending_clients(bat_priv);
+
+		timeout /= 2;
+		reduced = true;
+		net_ratelimited_function(batadv_info, soft_iface,
+					 "Forced to purge local tt entries to fit new maximum fragment MTU (%i)\n",
+					 packet_size_max);
+	}
+
+	/* commit these changes immediately, to avoid synchronization problem
+	 * with the TTVN
+	 */
+	if (reduced)
+		batadv_tt_local_commit_changes_nolock(bat_priv);
+
+	spin_unlock_bh(&bat_priv->tt.commit_lock);
+}
+
 /**
  * batadv_tt_tvlv_ogm_handler_v1 - process incoming tt tvlv container
  * @bat_priv: the bat priv with all the soft interface information
diff --git a/net/batman-adv/translation-table.h b/net/batman-adv/translation-table.h
index dc6db4e00a43..026b1ffa6746 100644
--- a/net/batman-adv/translation-table.h
+++ b/net/batman-adv/translation-table.h
@@ -21,7 +21,7 @@
 #define _NET_BATMAN_ADV_TRANSLATION_TABLE_H_
 
 int batadv_tt_init(struct batadv_priv *bat_priv);
-void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
+bool batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
 			 unsigned short vid, int ifindex);
 uint16_t batadv_tt_local_remove(struct batadv_priv *bat_priv,
 				const uint8_t *addr, unsigned short vid,
@@ -45,6 +45,7 @@ bool batadv_tt_global_client_is_roaming(struct batadv_priv *bat_priv,
 					uint8_t *addr, unsigned short vid);
 bool batadv_tt_local_client_is_roaming(struct batadv_priv *bat_priv,
 				       uint8_t *addr, unsigned short vid);
+void batadv_tt_local_resize_to_mtu(struct net_device *soft_iface);
 bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
 					  struct batadv_orig_node *orig_node,
 					  const unsigned char *addr,
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 672a8134d3ba..04b6b0b00af2 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -612,6 +612,8 @@ struct batadv_softif_vlan {
  * @aggregated_ogms: bool indicating whether OGM aggregation is enabled
  * @bonding: bool indicating whether traffic bonding is enabled
  * @fragmentation: bool indicating whether traffic fragmentation is enabled
+ * @packet_size_max: max packet size that can be transmitted via
+ *  multiple fragmented skbs or a single frame if fragmentation is disabled
  * @frag_seqno: incremental counter to identify chains of egress fragments
  * @bridge_loop_avoidance: bool indicating whether bridge loop avoidance is
  *  enabled
@@ -658,6 +660,7 @@ struct batadv_priv {
 	atomic_t aggregated_ogms;
 	atomic_t bonding;
 	atomic_t fragmentation;
+	atomic_t packet_size_max;
 	atomic_t frag_seqno;
 #ifdef CONFIG_BATMAN_ADV_BLA
 	atomic_t bridge_loop_avoidance;
-- 
cgit 


From 8257f55ae277dd94c015f7cf32f4afd1db59fe8d Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Mon, 19 Aug 2013 18:39:59 +0200
Subject: batman-adv: send GW_DEL event in case of soft-iface destruction

In case of soft_iface destruction send a GW DEL event to
userspace so that applications which are listening for GW
events are informed about the lost of connectivity and can
react accordingly.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
---
 net/batman-adv/hard-interface.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index c60d3ed40257..1ba8a552b62b 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -28,6 +28,7 @@
 #include "originator.h"
 #include "hash.h"
 #include "bridge_loop_avoidance.h"
+#include "gateway_client.h"
 
 #include <linux/if_arp.h>
 #include <linux/if_ether.h>
@@ -535,8 +536,12 @@ void batadv_hardif_disable_interface(struct batadv_hard_iface *hard_iface,
 	dev_put(hard_iface->soft_iface);
 
 	/* nobody uses this interface anymore */
-	if (!bat_priv->num_ifaces && autodel == BATADV_IF_CLEANUP_AUTO)
-		batadv_softif_destroy_sysfs(hard_iface->soft_iface);
+	if (!bat_priv->num_ifaces) {
+		batadv_gw_check_client_stop(bat_priv);
+
+		if (autodel == BATADV_IF_CLEANUP_AUTO)
+			batadv_softif_destroy_sysfs(hard_iface->soft_iface);
+	}
 
 	netdev_upper_dev_unlink(hard_iface->net_dev, hard_iface->soft_iface);
 	hard_iface->soft_iface = NULL;
-- 
cgit 


From 0c69aecc5b1a57d62c39cf8c552a9e823409db60 Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Sun, 13 Oct 2013 02:50:18 +0200
Subject: batman-adv: invoke dev_get_by_index() outside of is_wifi_iface()

Upcoming changes need to perform other checks on the
incoming net_device struct.

To avoid performing dev_get_by_index() for each and every
check, it is better to move it outside of is_wifi_iface()
and search the netdev object once only.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
---
 net/batman-adv/hard-interface.c    | 33 ++++-----------------------------
 net/batman-adv/hard-interface.h    |  2 +-
 net/batman-adv/translation-table.c |  8 +++++++-
 3 files changed, 12 insertions(+), 31 deletions(-)

diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index 1ba8a552b62b..57c2a19dcb5c 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -125,8 +125,11 @@ static int batadv_is_valid_iface(const struct net_device *net_dev)
  *
  * Returns true if the net device is a 802.11 wireless device, false otherwise.
  */
-static bool batadv_is_wifi_netdev(struct net_device *net_device)
+bool batadv_is_wifi_netdev(struct net_device *net_device)
 {
+	if (!net_device)
+		return false;
+
 #ifdef CONFIG_WIRELESS_EXT
 	/* pre-cfg80211 drivers have to implement WEXT, so it is possible to
 	 * check for wireless_handlers != NULL
@@ -142,34 +145,6 @@ static bool batadv_is_wifi_netdev(struct net_device *net_device)
 	return false;
 }
 
-/**
- * batadv_is_wifi_iface - check if the given interface represented by ifindex
- *  is a wifi interface
- * @ifindex: interface index to check
- *
- * Returns true if the interface represented by ifindex is a 802.11 wireless
- * device, false otherwise.
- */
-bool batadv_is_wifi_iface(int ifindex)
-{
-	struct net_device *net_device = NULL;
-	bool ret = false;
-
-	if (ifindex == BATADV_NULL_IFINDEX)
-		goto out;
-
-	net_device = dev_get_by_index(&init_net, ifindex);
-	if (!net_device)
-		goto out;
-
-	ret = batadv_is_wifi_netdev(net_device);
-
-out:
-	if (net_device)
-		dev_put(net_device);
-	return ret;
-}
-
 static struct batadv_hard_iface *
 batadv_hardif_get_active(const struct net_device *soft_iface)
 {
diff --git a/net/batman-adv/hard-interface.h b/net/batman-adv/hard-interface.h
index 49892881a7c5..df4c8bd45c40 100644
--- a/net/batman-adv/hard-interface.h
+++ b/net/batman-adv/hard-interface.h
@@ -41,6 +41,7 @@ enum batadv_hard_if_cleanup {
 
 extern struct notifier_block batadv_hard_if_notifier;
 
+bool batadv_is_wifi_netdev(struct net_device *net_device);
 struct batadv_hard_iface*
 batadv_hardif_get_by_netdev(const struct net_device *net_dev);
 int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,
@@ -51,7 +52,6 @@ void batadv_hardif_remove_interfaces(void);
 int batadv_hardif_min_mtu(struct net_device *soft_iface);
 void batadv_update_min_mtu(struct net_device *soft_iface);
 void batadv_hardif_free_rcu(struct rcu_head *rcu);
-bool batadv_is_wifi_iface(int ifindex);
 
 static inline void
 batadv_hardif_free_ref(struct batadv_hard_iface *hard_iface)
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index a3c965dd1d96..b0fe177956ef 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -477,11 +477,15 @@ bool batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
 	struct batadv_priv *bat_priv = netdev_priv(soft_iface);
 	struct batadv_tt_local_entry *tt_local;
 	struct batadv_tt_global_entry *tt_global;
+	struct net_device *in_dev = NULL;
 	struct hlist_head *head;
 	struct batadv_tt_orig_list_entry *orig_entry;
 	int hash_added, table_size, packet_size_max;
 	bool ret = false, roamed_back = false;
 
+	if (ifindex != BATADV_NULL_IFINDEX)
+		in_dev = dev_get_by_index(&init_net, ifindex);
+
 	tt_local = batadv_tt_local_hash_find(bat_priv, addr, vid);
 	tt_global = batadv_tt_global_hash_find(bat_priv, addr, vid);
 
@@ -542,7 +546,7 @@ bool batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
 	 */
 	tt_local->common.flags = BATADV_TT_CLIENT_NEW;
 	tt_local->common.vid = vid;
-	if (batadv_is_wifi_iface(ifindex))
+	if (batadv_is_wifi_netdev(in_dev))
 		tt_local->common.flags |= BATADV_TT_CLIENT_WIFI;
 	atomic_set(&tt_local->common.refcount, 2);
 	tt_local->last_seen = jiffies;
@@ -595,6 +599,8 @@ check_roaming:
 	ret = true;
 
 out:
+	if (in_dev)
+		dev_put(in_dev);
 	if (tt_local)
 		batadv_tt_local_entry_free_ref(tt_local);
 	if (tt_global)
-- 
cgit 


From 3c4f7ab60cc21e8fc65b234f3a6174fc19a93fee Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Sun, 13 Oct 2013 02:50:19 +0200
Subject: batman-adv: improve the TT component to support runtime flag changes

Some flags (i.e. the WIFI flag) may change after that the
related client has already been announced. However it is
useful to informa the rest of the network about this change.

Add a runtime-flag-switch detection mechanism and
re-announce the related TT entry to advertise the new flag
value.

This mechanism can be easily exploited by future flags that
may need the same treatment.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
---
 net/batman-adv/translation-table.c | 25 ++++++++++++++++++++++++-
 net/batman-adv/types.h             |  6 ++++++
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index b0fe177956ef..267780f4b438 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -358,6 +358,13 @@ static void batadv_tt_local_event(struct batadv_priv *bat_priv,
 			goto del;
 		if (del_op_requested && !del_op_entry)
 			goto del;
+
+		/* this is a second add in the same originator interval. It
+		 * means that flags have been changed: update them!
+		 */
+		if (!del_op_requested && !del_op_entry)
+			entry->change.flags = flags;
+
 		continue;
 del:
 		list_del(&entry->list);
@@ -482,6 +489,7 @@ bool batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
 	struct batadv_tt_orig_list_entry *orig_entry;
 	int hash_added, table_size, packet_size_max;
 	bool ret = false, roamed_back = false;
+	uint8_t remote_flags;
 
 	if (ifindex != BATADV_NULL_IFINDEX)
 		in_dev = dev_get_by_index(&init_net, ifindex);
@@ -596,8 +604,23 @@ check_roaming:
 		}
 	}
 
-	ret = true;
+	/* store the current remote flags before altering them. This helps
+	 * understanding is flags are changing or not
+	 */
+	remote_flags = tt_local->common.flags & BATADV_TT_REMOTE_MASK;
+
+	if (batadv_is_wifi_netdev(in_dev))
+		tt_local->common.flags |= BATADV_TT_CLIENT_WIFI;
+	else
+		tt_local->common.flags &= ~BATADV_TT_CLIENT_WIFI;
 
+	/* if any "dynamic" flag has been modified, resend an ADD event for this
+	 * entry so that all the nodes can get the new flags
+	 */
+	if (remote_flags ^ (tt_local->common.flags & BATADV_TT_REMOTE_MASK))
+		batadv_tt_local_event(bat_priv, tt_local, BATADV_NO_FLAGS);
+
+	ret = true;
 out:
 	if (in_dev)
 		dev_put(in_dev);
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 04b6b0b00af2..61297b6db85e 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -35,6 +35,12 @@
 
 #endif /* CONFIG_BATMAN_ADV_DAT */
 
+/**
+ * BATADV_TT_REMOTE_MASK - bitmask selecting the flags that are sent over the
+ *  wire only
+ */
+#define BATADV_TT_REMOTE_MASK	0x00FF
+
 /**
  * struct batadv_hard_iface_bat_iv - per hard interface B.A.T.M.A.N. IV data
  * @ogm_buff: buffer holding the OGM packet
-- 
cgit 


From 0eb01568f0b78f482eb2fd91d01e9eab344933aa Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@open-mesh.com>
Date: Sun, 13 Oct 2013 02:50:20 +0200
Subject: batman-adv: include the sync-flags when compute the global/local
 table CRC

Flags covered by TT_SYNC_MASK are kept in sync among the
nodes in the network and therefore they have to be
considered while computing the global/local table CRC.

In this way a generic originator is able to understand if
its table contains the correct flags or not.

Bits from 4 to 7 in the TT flags fields are now reserved for
"synchronized" flags only.

This allows future developers to add more flags of this type
without breaking compatibility.

It's important to note that not all the remote TT flags are
synchronised. This comes from the fact that some flags are
used to inject an information once only.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
---
 net/batman-adv/packet.h            |  5 +++--
 net/batman-adv/translation-table.c | 19 +++++++++++++++++++
 net/batman-adv/types.h             |  6 ++++++
 3 files changed, 28 insertions(+), 2 deletions(-)

diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index 9fbcaacc345a..843b96ac355a 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -110,12 +110,13 @@ enum batadv_tt_data_flags {
 
 /* BATADV_TT_CLIENT flags.
  * Flags from BIT(0) to BIT(7) are sent on the wire, while flags from BIT(8) to
- * BIT(15) are used for local computation only
+ * BIT(15) are used for local computation only.
+ * Flags from BIT(4) to BIT(7) are kept in sync with the rest of the network.
  */
 enum batadv_tt_client_flags {
 	BATADV_TT_CLIENT_DEL     = BIT(0),
 	BATADV_TT_CLIENT_ROAM    = BIT(1),
-	BATADV_TT_CLIENT_WIFI    = BIT(2),
+	BATADV_TT_CLIENT_WIFI    = BIT(4),
 	BATADV_TT_CLIENT_NOPURGE = BIT(8),
 	BATADV_TT_CLIENT_NEW     = BIT(9),
 	BATADV_TT_CLIENT_PENDING = BIT(10),
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 267780f4b438..4add57d4857f 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -1959,6 +1959,7 @@ static uint32_t batadv_tt_global_crc(struct batadv_priv *bat_priv,
 	struct batadv_tt_global_entry *tt_global;
 	struct hlist_head *head;
 	uint32_t i, crc_tmp, crc = 0;
+	uint8_t flags;
 
 	for (i = 0; i < hash->size; i++) {
 		head = &hash->table[i];
@@ -1997,6 +1998,13 @@ static uint32_t batadv_tt_global_crc(struct batadv_priv *bat_priv,
 
 			crc_tmp = crc32c(0, &tt_common->vid,
 					 sizeof(tt_common->vid));
+
+			/* compute the CRC on flags that have to be kept in sync
+			 * among nodes
+			 */
+			flags = tt_common->flags & BATADV_TT_SYNC_MASK;
+			crc_tmp = crc32c(crc_tmp, &flags, sizeof(flags));
+
 			crc ^= crc32c(crc_tmp, tt_common->addr, ETH_ALEN);
 		}
 		rcu_read_unlock();
@@ -2022,6 +2030,7 @@ static uint32_t batadv_tt_local_crc(struct batadv_priv *bat_priv,
 	struct batadv_tt_common_entry *tt_common;
 	struct hlist_head *head;
 	uint32_t i, crc_tmp, crc = 0;
+	uint8_t flags;
 
 	for (i = 0; i < hash->size; i++) {
 		head = &hash->table[i];
@@ -2042,6 +2051,13 @@ static uint32_t batadv_tt_local_crc(struct batadv_priv *bat_priv,
 
 			crc_tmp = crc32c(0, &tt_common->vid,
 					 sizeof(tt_common->vid));
+
+			/* compute the CRC on flags that have to be kept in sync
+			 * among nodes
+			 */
+			flags = tt_common->flags & BATADV_TT_SYNC_MASK;
+			crc_tmp = crc32c(crc_tmp, &flags, sizeof(flags));
+
 			crc ^= crc32c(crc_tmp, tt_common->addr, ETH_ALEN);
 		}
 		rcu_read_unlock();
@@ -3524,6 +3540,9 @@ int batadv_tt_init(struct batadv_priv *bat_priv)
 {
 	int ret;
 
+	/* synchronized flags must be remote */
+	BUILD_BUG_ON(!(BATADV_TT_SYNC_MASK & BATADV_TT_REMOTE_MASK));
+
 	ret = batadv_tt_local_init(bat_priv);
 	if (ret < 0)
 		return ret;
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 61297b6db85e..3c2116274de2 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -41,6 +41,12 @@
  */
 #define BATADV_TT_REMOTE_MASK	0x00FF
 
+/**
+ * BATADV_TT_SYNC_MASK - bitmask of the flags that need to be kept in sync
+ *  among the nodes. These flags are used to compute the global/local CRC
+ */
+#define BATADV_TT_SYNC_MASK	0x00F0
+
 /**
  * struct batadv_hard_iface_bat_iv - per hard interface B.A.T.M.A.N. IV data
  * @ogm_buff: buffer holding the OGM packet
-- 
cgit 


From 15c33da6e8c960e61691ec302fd72f247e97055b Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <sw@simonwunderlich.de>
Date: Mon, 14 Oct 2013 18:01:01 +0200
Subject: batman-adv: Start new development cycle

Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/main.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/batman-adv/main.h b/net/batman-adv/main.h
index 773301a7923f..f94f287b8670 100644
--- a/net/batman-adv/main.h
+++ b/net/batman-adv/main.h
@@ -26,7 +26,7 @@
 #define BATADV_DRIVER_DEVICE "batman-adv"
 
 #ifndef BATADV_SOURCE_VERSION
-#define BATADV_SOURCE_VERSION "2013.4.0"
+#define BATADV_SOURCE_VERSION "2013.5.0"
 #endif
 
 /* B.A.T.M.A.N. parameters */
-- 
cgit 


From da6b8c20a5b8c7edce95c95fa2356300691094f5 Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <sw@simonwunderlich.de>
Date: Tue, 22 Oct 2013 22:50:09 +0200
Subject: batman-adv: generalize batman-adv icmp packet handling

Instead of handling icmp packets only up to length of icmp_packet_rr,
the code should handle any icmp length size. Therefore the length
truncating is moved to when the packet is actually sent to userspace
(this does not support lengths longer than icmp_packet_rr yet). Longer
packets are forwarded without truncating.

This patch also cleans up some parts where the icmp header struct could
be used instead of other icmp_packet(_rr) structs to make the code more
readable.

Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
---
 net/batman-adv/icmp_socket.c | 128 +++++++++++++++++++++++++++----------------
 net/batman-adv/icmp_socket.h |   2 +-
 net/batman-adv/packet.h      |   2 +
 net/batman-adv/routing.c     | 120 ++++++++++++++++++++++++----------------
 net/batman-adv/types.h       |   2 +-
 5 files changed, 157 insertions(+), 97 deletions(-)

diff --git a/net/batman-adv/icmp_socket.c b/net/batman-adv/icmp_socket.c
index 82ac6472fa6f..29ae4efe3543 100644
--- a/net/batman-adv/icmp_socket.c
+++ b/net/batman-adv/icmp_socket.c
@@ -29,7 +29,7 @@
 static struct batadv_socket_client *batadv_socket_client_hash[256];
 
 static void batadv_socket_add_packet(struct batadv_socket_client *socket_client,
-				     struct batadv_icmp_packet_rr *icmp_packet,
+				     struct batadv_icmp_header *icmph,
 				     size_t icmp_len);
 
 void batadv_socket_init(void)
@@ -155,13 +155,13 @@ static ssize_t batadv_socket_write(struct file *file, const char __user *buff,
 	struct batadv_priv *bat_priv = socket_client->bat_priv;
 	struct batadv_hard_iface *primary_if = NULL;
 	struct sk_buff *skb;
-	struct batadv_icmp_packet_rr *icmp_packet;
-
+	struct batadv_icmp_packet_rr *icmp_packet_rr;
+	struct batadv_icmp_header *icmp_header;
 	struct batadv_orig_node *orig_node = NULL;
 	struct batadv_neigh_node *neigh_node = NULL;
 	size_t packet_len = sizeof(struct batadv_icmp_packet);
 
-	if (len < sizeof(struct batadv_icmp_packet)) {
+	if (len < sizeof(struct batadv_icmp_header)) {
 		batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
 			   "Error - can't send packet from char device: invalid packet size\n");
 		return -EINVAL;
@@ -174,8 +174,10 @@ static ssize_t batadv_socket_write(struct file *file, const char __user *buff,
 		goto out;
 	}
 
-	if (len >= sizeof(struct batadv_icmp_packet_rr))
-		packet_len = sizeof(struct batadv_icmp_packet_rr);
+	if (len >= BATADV_ICMP_MAX_PACKET_SIZE)
+		packet_len = BATADV_ICMP_MAX_PACKET_SIZE;
+	else
+		packet_len = len;
 
 	skb = netdev_alloc_skb_ip_align(NULL, packet_len + ETH_HLEN);
 	if (!skb) {
@@ -185,67 +187,78 @@ static ssize_t batadv_socket_write(struct file *file, const char __user *buff,
 
 	skb->priority = TC_PRIO_CONTROL;
 	skb_reserve(skb, ETH_HLEN);
-	icmp_packet = (struct batadv_icmp_packet_rr *)skb_put(skb, packet_len);
+	icmp_header = (struct batadv_icmp_header *)skb_put(skb, packet_len);
 
-	if (copy_from_user(icmp_packet, buff, packet_len)) {
+	if (copy_from_user(icmp_header, buff, packet_len)) {
 		len = -EFAULT;
 		goto free_skb;
 	}
 
-	if (icmp_packet->icmph.header.packet_type != BATADV_ICMP) {
+	if (icmp_header->header.packet_type != BATADV_ICMP) {
 		batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
 			   "Error - can't send packet from char device: got bogus packet type (expected: BAT_ICMP)\n");
 		len = -EINVAL;
 		goto free_skb;
 	}
 
-	if (icmp_packet->icmph.msg_type != BATADV_ECHO_REQUEST) {
+	switch (icmp_header->msg_type) {
+	case BATADV_ECHO_REQUEST:
+		if (len < sizeof(struct batadv_icmp_packet)) {
+			batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+				   "Error - can't send packet from char device: invalid packet size\n");
+			len = -EINVAL;
+			goto free_skb;
+		}
+
+		if (atomic_read(&bat_priv->mesh_state) != BATADV_MESH_ACTIVE)
+			goto dst_unreach;
+
+		orig_node = batadv_orig_hash_find(bat_priv, icmp_header->dst);
+		if (!orig_node)
+			goto dst_unreach;
+
+		neigh_node = batadv_orig_node_get_router(orig_node);
+		if (!neigh_node)
+			goto dst_unreach;
+
+		if (!neigh_node->if_incoming)
+			goto dst_unreach;
+
+		if (neigh_node->if_incoming->if_status != BATADV_IF_ACTIVE)
+			goto dst_unreach;
+
+		icmp_packet_rr = (struct batadv_icmp_packet_rr *)icmp_header;
+		if (packet_len == sizeof(*icmp_packet_rr))
+			memcpy(icmp_packet_rr->rr,
+			       neigh_node->if_incoming->net_dev->dev_addr,
+			       ETH_ALEN);
+
+		break;
+	default:
 		batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
-			   "Error - can't send packet from char device: got bogus message type (expected: ECHO_REQUEST)\n");
+			   "Error - can't send packet from char device: got unknown message type\n");
 		len = -EINVAL;
 		goto free_skb;
 	}
 
-	icmp_packet->icmph.uid = socket_client->index;
+	icmp_header->uid = socket_client->index;
 
-	if (icmp_packet->icmph.header.version != BATADV_COMPAT_VERSION) {
-		icmp_packet->icmph.msg_type = BATADV_PARAMETER_PROBLEM;
-		icmp_packet->icmph.header.version = BATADV_COMPAT_VERSION;
-		batadv_socket_add_packet(socket_client, icmp_packet,
+	if (icmp_header->header.version != BATADV_COMPAT_VERSION) {
+		icmp_header->msg_type = BATADV_PARAMETER_PROBLEM;
+		icmp_header->header.version = BATADV_COMPAT_VERSION;
+		batadv_socket_add_packet(socket_client, icmp_header,
 					 packet_len);
 		goto free_skb;
 	}
 
-	if (atomic_read(&bat_priv->mesh_state) != BATADV_MESH_ACTIVE)
-		goto dst_unreach;
-
-	orig_node = batadv_orig_hash_find(bat_priv, icmp_packet->icmph.dst);
-	if (!orig_node)
-		goto dst_unreach;
-
-	neigh_node = batadv_orig_node_get_router(orig_node);
-	if (!neigh_node)
-		goto dst_unreach;
-
-	if (!neigh_node->if_incoming)
-		goto dst_unreach;
-
-	if (neigh_node->if_incoming->if_status != BATADV_IF_ACTIVE)
-		goto dst_unreach;
-
-	memcpy(icmp_packet->icmph.orig,
-	       primary_if->net_dev->dev_addr, ETH_ALEN);
-
-	if (packet_len == sizeof(struct batadv_icmp_packet_rr))
-		memcpy(icmp_packet->rr,
-		       neigh_node->if_incoming->net_dev->dev_addr, ETH_ALEN);
+	memcpy(icmp_header->orig, primary_if->net_dev->dev_addr, ETH_ALEN);
 
 	batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
 	goto out;
 
 dst_unreach:
-	icmp_packet->icmph.msg_type = BATADV_DESTINATION_UNREACHABLE;
-	batadv_socket_add_packet(socket_client, icmp_packet, packet_len);
+	icmp_header->msg_type = BATADV_DESTINATION_UNREACHABLE;
+	batadv_socket_add_packet(socket_client, icmp_header, packet_len);
 free_skb:
 	kfree_skb(skb);
 out:
@@ -298,27 +311,40 @@ err:
 	return -ENOMEM;
 }
 
+/**
+ * batadv_socket_receive_packet - schedule an icmp packet to be sent to userspace
+ *  on an icmp socket.
+ * @socket_client: the socket this packet belongs to
+ * @icmph: pointer to the header of the icmp packet
+ * @icmp_len: total length of the icmp packet
+ */
 static void batadv_socket_add_packet(struct batadv_socket_client *socket_client,
-				     struct batadv_icmp_packet_rr *icmp_packet,
+				     struct batadv_icmp_header *icmph,
 				     size_t icmp_len)
 {
 	struct batadv_socket_packet *socket_packet;
+	size_t len;
 
 	socket_packet = kmalloc(sizeof(*socket_packet), GFP_ATOMIC);
 
 	if (!socket_packet)
 		return;
 
+	len = icmp_len;
+	/* check the maximum length before filling the buffer */
+	if (len > sizeof(socket_packet->icmp_packet))
+		len = sizeof(socket_packet->icmp_packet);
+
 	INIT_LIST_HEAD(&socket_packet->list);
-	memcpy(&socket_packet->icmp_packet, icmp_packet, icmp_len);
-	socket_packet->icmp_len = icmp_len;
+	memcpy(&socket_packet->icmp_packet, icmph, len);
+	socket_packet->icmp_len = len;
 
 	spin_lock_bh(&socket_client->lock);
 
 	/* while waiting for the lock the socket_client could have been
 	 * deleted
 	 */
-	if (!batadv_socket_client_hash[icmp_packet->icmph.uid]) {
+	if (!batadv_socket_client_hash[icmph->uid]) {
 		spin_unlock_bh(&socket_client->lock);
 		kfree(socket_packet);
 		return;
@@ -342,12 +368,18 @@ static void batadv_socket_add_packet(struct batadv_socket_client *socket_client,
 	wake_up(&socket_client->queue_wait);
 }
 
-void batadv_socket_receive_packet(struct batadv_icmp_packet_rr *icmp_packet,
+/**
+ * batadv_socket_receive_packet - schedule an icmp packet to be received
+ *  locally and sent to userspace.
+ * @icmph: pointer to the header of the icmp packet
+ * @icmp_len: total length of the icmp packet
+ */
+void batadv_socket_receive_packet(struct batadv_icmp_header *icmph,
 				  size_t icmp_len)
 {
 	struct batadv_socket_client *hash;
 
-	hash = batadv_socket_client_hash[icmp_packet->icmph.uid];
+	hash = batadv_socket_client_hash[icmph->uid];
 	if (hash)
-		batadv_socket_add_packet(hash, icmp_packet, icmp_len);
+		batadv_socket_add_packet(hash, icmph, icmp_len);
 }
diff --git a/net/batman-adv/icmp_socket.h b/net/batman-adv/icmp_socket.h
index 1fcca37b6223..6665080dff79 100644
--- a/net/batman-adv/icmp_socket.h
+++ b/net/batman-adv/icmp_socket.h
@@ -24,7 +24,7 @@
 
 void batadv_socket_init(void);
 int batadv_socket_setup(struct batadv_priv *bat_priv);
-void batadv_socket_receive_packet(struct batadv_icmp_packet_rr *icmp_packet,
+void batadv_socket_receive_packet(struct batadv_icmp_header *icmph,
 				  size_t icmp_len);
 
 #endif /* _NET_BATMAN_ADV_ICMP_SOCKET_H_ */
diff --git a/net/batman-adv/packet.h b/net/batman-adv/packet.h
index 843b96ac355a..207459b62966 100644
--- a/net/batman-adv/packet.h
+++ b/net/batman-adv/packet.h
@@ -239,6 +239,8 @@ struct batadv_icmp_packet_rr {
 	uint8_t  rr[BATADV_RR_LEN][ETH_ALEN];
 };
 
+#define BATADV_ICMP_MAX_PACKET_SIZE	sizeof(struct batadv_icmp_packet_rr)
+
 /* All packet headers in front of an ethernet header have to be completely
  * divisible by 2 but not by 4 to make the payload after the ethernet
  * header again 4 bytes boundary aligned.
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 71fba146ddf1..d4114d775ad6 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -260,47 +260,65 @@ bool batadv_check_management_packet(struct sk_buff *skb,
 	return true;
 }
 
+/**
+ * batadv_recv_my_icmp_packet - receive an icmp packet locally
+ * @bat_priv: the bat priv with all the soft interface information
+ * @skb: icmp packet to process
+ *
+ * Returns NET_RX_SUCCESS if the packet has been consumed or NET_RX_DROP
+ * otherwise.
+ */
 static int batadv_recv_my_icmp_packet(struct batadv_priv *bat_priv,
-				      struct sk_buff *skb, size_t icmp_len)
+				      struct sk_buff *skb)
 {
 	struct batadv_hard_iface *primary_if = NULL;
 	struct batadv_orig_node *orig_node = NULL;
-	struct batadv_icmp_packet_rr *icmp_packet;
-	int ret = NET_RX_DROP;
+	struct batadv_icmp_header *icmph;
+	int res, ret = NET_RX_DROP;
 
-	icmp_packet = (struct batadv_icmp_packet_rr *)skb->data;
+	icmph = (struct batadv_icmp_header *)skb->data;
 
-	/* add data to device queue */
-	if (icmp_packet->icmph.msg_type != BATADV_ECHO_REQUEST) {
-		batadv_socket_receive_packet(icmp_packet, icmp_len);
-		goto out;
-	}
+	switch (icmph->msg_type) {
+	case BATADV_ECHO_REPLY:
+	case BATADV_DESTINATION_UNREACHABLE:
+	case BATADV_TTL_EXCEEDED:
+		/* receive the packet */
+		if (skb_linearize(skb) < 0)
+			break;
 
-	primary_if = batadv_primary_if_get_selected(bat_priv);
-	if (!primary_if)
-		goto out;
+		batadv_socket_receive_packet(icmph, skb->len);
+		break;
+	case BATADV_ECHO_REQUEST:
+		/* answer echo request (ping) */
+		primary_if = batadv_primary_if_get_selected(bat_priv);
+		if (!primary_if)
+			goto out;
 
-	/* answer echo request (ping) */
-	/* get routing information */
-	orig_node = batadv_orig_hash_find(bat_priv, icmp_packet->icmph.orig);
-	if (!orig_node)
-		goto out;
+		/* get routing information */
+		orig_node = batadv_orig_hash_find(bat_priv, icmph->orig);
+		if (!orig_node)
+			goto out;
 
-	/* create a copy of the skb, if needed, to modify it. */
-	if (skb_cow(skb, ETH_HLEN) < 0)
-		goto out;
+		/* create a copy of the skb, if needed, to modify it. */
+		if (skb_cow(skb, ETH_HLEN) < 0)
+			goto out;
 
-	icmp_packet = (struct batadv_icmp_packet_rr *)skb->data;
+		icmph = (struct batadv_icmp_header *)skb->data;
 
-	memcpy(icmp_packet->icmph.dst, icmp_packet->icmph.orig, ETH_ALEN);
-	memcpy(icmp_packet->icmph.orig, primary_if->net_dev->dev_addr,
-	       ETH_ALEN);
-	icmp_packet->icmph.msg_type = BATADV_ECHO_REPLY;
-	icmp_packet->icmph.header.ttl = BATADV_TTL;
+		memcpy(icmph->dst, icmph->orig, ETH_ALEN);
+		memcpy(icmph->orig, primary_if->net_dev->dev_addr, ETH_ALEN);
+		icmph->msg_type = BATADV_ECHO_REPLY;
+		icmph->header.ttl = BATADV_TTL;
 
-	if (batadv_send_skb_to_orig(skb, orig_node, NULL) != NET_XMIT_DROP)
-		ret = NET_RX_SUCCESS;
+		res = batadv_send_skb_to_orig(skb, orig_node, NULL);
+		if (res != NET_XMIT_DROP)
+			ret = NET_RX_SUCCESS;
 
+		break;
+	default:
+		/* drop unknown type */
+		goto out;
+	}
 out:
 	if (primary_if)
 		batadv_hardif_free_ref(primary_if);
@@ -363,16 +381,13 @@ int batadv_recv_icmp_packet(struct sk_buff *skb,
 			    struct batadv_hard_iface *recv_if)
 {
 	struct batadv_priv *bat_priv = netdev_priv(recv_if->soft_iface);
-	struct batadv_icmp_packet_rr *icmp_packet;
+	struct batadv_icmp_header *icmph;
+	struct batadv_icmp_packet_rr *icmp_packet_rr;
 	struct ethhdr *ethhdr;
 	struct batadv_orig_node *orig_node = NULL;
-	int hdr_size = sizeof(struct batadv_icmp_packet);
+	int hdr_size = sizeof(struct batadv_icmp_header);
 	int ret = NET_RX_DROP;
 
-	/* we truncate all incoming icmp packets if they don't match our size */
-	if (skb->len >= sizeof(struct batadv_icmp_packet_rr))
-		hdr_size = sizeof(struct batadv_icmp_packet_rr);
-
 	/* drop packet if it has not necessary minimum size */
 	if (unlikely(!pskb_may_pull(skb, hdr_size)))
 		goto out;
@@ -391,28 +406,39 @@ int batadv_recv_icmp_packet(struct sk_buff *skb,
 	if (!batadv_is_my_mac(bat_priv, ethhdr->h_dest))
 		goto out;
 
-	icmp_packet = (struct batadv_icmp_packet_rr *)skb->data;
+	icmph = (struct batadv_icmp_header *)skb->data;
 
 	/* add record route information if not full */
-	if ((icmp_packet->icmph.msg_type == BATADV_ECHO_REPLY ||
-	     icmp_packet->icmph.msg_type == BATADV_ECHO_REQUEST) &&
-	    (hdr_size == sizeof(struct batadv_icmp_packet_rr)) &&
-	    (icmp_packet->rr_cur < BATADV_RR_LEN)) {
-		memcpy(&(icmp_packet->rr[icmp_packet->rr_cur]),
+	if ((icmph->msg_type == BATADV_ECHO_REPLY ||
+	     icmph->msg_type == BATADV_ECHO_REQUEST) &&
+	    (skb->len >= sizeof(struct batadv_icmp_packet_rr))) {
+		if (skb_linearize(skb) < 0)
+			goto out;
+
+		/* create a copy of the skb, if needed, to modify it. */
+		if (skb_cow(skb, ETH_HLEN) < 0)
+			goto out;
+
+		icmph = (struct batadv_icmp_header *)skb->data;
+		icmp_packet_rr = (struct batadv_icmp_packet_rr *)icmph;
+		if (icmp_packet_rr->rr_cur >= BATADV_RR_LEN)
+			goto out;
+
+		memcpy(&(icmp_packet_rr->rr[icmp_packet_rr->rr_cur]),
 		       ethhdr->h_dest, ETH_ALEN);
-		icmp_packet->rr_cur++;
+		icmp_packet_rr->rr_cur++;
 	}
 
 	/* packet for me */
-	if (batadv_is_my_mac(bat_priv, icmp_packet->icmph.dst))
-		return batadv_recv_my_icmp_packet(bat_priv, skb, hdr_size);
+	if (batadv_is_my_mac(bat_priv, icmph->dst))
+		return batadv_recv_my_icmp_packet(bat_priv, skb);
 
 	/* TTL exceeded */
-	if (icmp_packet->icmph.header.ttl < 2)
+	if (icmph->header.ttl < 2)
 		return batadv_recv_icmp_ttl_exceeded(bat_priv, skb);
 
 	/* get routing information */
-	orig_node = batadv_orig_hash_find(bat_priv, icmp_packet->icmph.dst);
+	orig_node = batadv_orig_hash_find(bat_priv, icmph->dst);
 	if (!orig_node)
 		goto out;
 
@@ -420,10 +446,10 @@ int batadv_recv_icmp_packet(struct sk_buff *skb,
 	if (skb_cow(skb, ETH_HLEN) < 0)
 		goto out;
 
-	icmp_packet = (struct batadv_icmp_packet_rr *)skb->data;
+	icmph = (struct batadv_icmp_header *)skb->data;
 
 	/* decrement ttl */
-	icmp_packet->icmph.header.ttl--;
+	icmph->header.ttl--;
 
 	/* route it */
 	if (batadv_send_skb_to_orig(skb, orig_node, recv_if) != NET_XMIT_DROP)
diff --git a/net/batman-adv/types.h b/net/batman-adv/types.h
index 3c2116274de2..91dd369b0ff2 100644
--- a/net/batman-adv/types.h
+++ b/net/batman-adv/types.h
@@ -749,7 +749,7 @@ struct batadv_socket_client {
 struct batadv_socket_packet {
 	struct list_head list;
 	size_t icmp_len;
-	struct batadv_icmp_packet_rr icmp_packet;
+	uint8_t icmp_packet[BATADV_ICMP_MAX_PACKET_SIZE];
 };
 
 /**
-- 
cgit 


From f29b5f3e6fc0a8b7a1c3f626d09bfa17ccb61f99 Mon Sep 17 00:00:00 2001
From: Mike Pagano <mpagano@gentoo.org>
Date: Wed, 9 Oct 2013 10:36:42 -0400
Subject: show_delta: Update script to support python versions 2.5 through 3.3

Support past and active versions of python while maintaining backward compatibility. Script has been tested on python versions from 2.5.x up to and including 3.3.x.

Signed-off-by: Mike Pagano <mpagano@gentoo.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/show_delta | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/scripts/show_delta b/scripts/show_delta
index 17df3051747a..e25732b5d701 100755
--- a/scripts/show_delta
+++ b/scripts/show_delta
@@ -13,7 +13,7 @@ import sys
 import string
 
 def usage():
-	print """usage: show_delta [<options>] <filename>
+	print ("""usage: show_delta [<options>] <filename>
 
 This program parses the output from a set of printk message lines which
 have time data prefixed because the CONFIG_PRINTK_TIME option is set, or
@@ -35,7 +35,7 @@ ex: $ dmesg >timefile
 
 will show times relative to the line in the kernel output
 starting with "NET4".
-"""
+""")
 	sys.exit(1)
 
 # returns a tuple containing the seconds and text for each message line
@@ -94,11 +94,11 @@ def main():
 	try:
 		lines = open(filein,"r").readlines()
 	except:
-		print "Problem opening file: %s" % filein
+		print ("Problem opening file: %s" % filein)
 		sys.exit(1)
 
 	if base_str:
-		print 'base= "%s"' % base_str
+		print ('base= "%s"' % base_str)
 		# assume a numeric base.  If that fails, try searching
 		# for a matching line.
 		try:
@@ -117,13 +117,13 @@ def main():
 					# stop at first match
 					break
 			if not found:
-				print 'Couldn\'t find line matching base pattern "%s"' % base_str
+				print ('Couldn\'t find line matching base pattern "%s"' % base_str)
 				sys.exit(1)
 	else:
 		base_time = 0.0
 
 	for line in lines:
-		print convert_line(line, base_time),
+		print (convert_line(line, base_time),)
 
 main()
 
-- 
cgit 


From 43e30f23b589642a7eaff005bc30444a5247976c Mon Sep 17 00:00:00 2001
From: David Jander <david@protonic.nl>
Date: Mon, 2 Sep 2013 09:46:11 +0200
Subject: mfd: da9052: Avoid multiwrite mode due to silicon errata

DA9053 (up to revision bc) can corrupt internal registers when multi-write
mode is enabled and power is removed or during shutdown.

Signed-off-by: David Jander <david@protonic.nl>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/da9052-i2c.c          | 12 ++++++++----
 include/linux/mfd/da9052/da9052.h | 20 ++++++++++++++------
 2 files changed, 22 insertions(+), 10 deletions(-)

diff --git a/drivers/mfd/da9052-i2c.c b/drivers/mfd/da9052-i2c.c
index 6a9fec40d018..c319c4ef5d49 100644
--- a/drivers/mfd/da9052-i2c.c
+++ b/drivers/mfd/da9052-i2c.c
@@ -86,7 +86,11 @@ static int da9052_i2c_fix(struct da9052 *da9052, unsigned char reg)
 	return 0;
 }
 
-static int da9052_i2c_enable_multiwrite(struct da9052 *da9052)
+/*
+ * According to errata item 24, multiwrite mode should be avoided
+ * in order to prevent register data corruption after power-down.
+ */
+static int da9052_i2c_disable_multiwrite(struct da9052 *da9052)
 {
 	int reg_val, ret;
 
@@ -94,8 +98,8 @@ static int da9052_i2c_enable_multiwrite(struct da9052 *da9052)
 	if (ret < 0)
 		return ret;
 
-	if (reg_val & DA9052_CONTROL_B_WRITEMODE) {
-		reg_val &= ~DA9052_CONTROL_B_WRITEMODE;
+	if (!(reg_val & DA9052_CONTROL_B_WRITEMODE)) {
+		reg_val |= DA9052_CONTROL_B_WRITEMODE;
 		ret = regmap_write(da9052->regmap, DA9052_CONTROL_B_REG,
 				   reg_val);
 		if (ret < 0)
@@ -154,7 +158,7 @@ static int da9052_i2c_probe(struct i2c_client *client,
 		return ret;
 	}
 
-	ret = da9052_i2c_enable_multiwrite(da9052);
+	ret = da9052_i2c_disable_multiwrite(da9052);
 	if (ret < 0)
 		return ret;
 
diff --git a/include/linux/mfd/da9052/da9052.h b/include/linux/mfd/da9052/da9052.h
index 786d02eb79d2..21e21b81cc75 100644
--- a/include/linux/mfd/da9052/da9052.h
+++ b/include/linux/mfd/da9052/da9052.h
@@ -148,10 +148,15 @@ static inline int da9052_group_read(struct da9052 *da9052, unsigned char reg,
 				     unsigned reg_cnt, unsigned char *val)
 {
 	int ret;
+	unsigned int tmp;
+	int i;
 
-	ret = regmap_bulk_read(da9052->regmap, reg, val, reg_cnt);
-	if (ret < 0)
-		return ret;
+	for (i = 0; i < reg_cnt; i++) {
+		ret = regmap_read(da9052->regmap, reg + i, &tmp);
+		val[i] = (unsigned char)tmp;
+		if (ret < 0)
+			return ret;
+	}
 
 	if (da9052->fix_io) {
 		ret = da9052->fix_io(da9052, reg);
@@ -166,10 +171,13 @@ static inline int da9052_group_write(struct da9052 *da9052, unsigned char reg,
 				      unsigned reg_cnt, unsigned char *val)
 {
 	int ret;
+	int i;
 
-	ret = regmap_raw_write(da9052->regmap, reg, val, reg_cnt);
-	if (ret < 0)
-		return ret;
+	for (i = 0; i < reg_cnt; i++) {
+		ret = regmap_write(da9052->regmap, reg + i, val[i]);
+		if (ret < 0)
+			return ret;
+	}
 
 	if (da9052->fix_io) {
 		ret = da9052->fix_io(da9052, reg);
-- 
cgit 


From 8a8320c2e78d1b619a8fa8eb5ae946b8691de604 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sun, 8 Sep 2013 00:25:36 -0700
Subject: mfd: sm501: dbg_regs attribute must be read-only

Fix:

sm501 sm501: SM501 At b3e00000: Version 050100a0, 8 Mb, IRQ 100
Attribute dbg_regs: write permission without 'store'
------------[ cut here ]------------
WARNING: at drivers/base/core.c:620

dbg_regs does not have a write function and must therefore be marked
as read-only.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/sm501.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index 33f040c558d0..3799a3d64415 100644
--- a/drivers/mfd/sm501.c
+++ b/drivers/mfd/sm501.c
@@ -1232,7 +1232,7 @@ static ssize_t sm501_dbg_regs(struct device *dev,
 }
 
 
-static DEVICE_ATTR(dbg_regs, 0666, sm501_dbg_regs, NULL);
+static DEVICE_ATTR(dbg_regs, 0444, sm501_dbg_regs, NULL);
 
 /* sm501_init_reg
  *
-- 
cgit 


From b5f90240e1ef0568a8c666da3c3be4c6a682c5a6 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Fri, 6 Sep 2013 16:14:28 +0100
Subject: mfd: wm8994: Inline register I/O functions

Since the register I/O functions are all simple wrappers for the regmap
equivalents inline them to provide a small code size saving and an example
of good practice.

Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/wm8994-core.c       | 78 -----------------------------------------
 include/linux/mfd/wm8994/core.h | 45 +++++++++++++++++++-----
 2 files changed, 36 insertions(+), 87 deletions(-)

diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c
index e1c283e6d4e5..030827511667 100644
--- a/drivers/mfd/wm8994-core.c
+++ b/drivers/mfd/wm8994-core.c
@@ -33,84 +33,6 @@
 
 #include "wm8994.h"
 
-/**
- * wm8994_reg_read: Read a single WM8994 register.
- *
- * @wm8994: Device to read from.
- * @reg: Register to read.
- */
-int wm8994_reg_read(struct wm8994 *wm8994, unsigned short reg)
-{
-	unsigned int val;
-	int ret;
-
-	ret = regmap_read(wm8994->regmap, reg, &val);
-
-	if (ret < 0)
-		return ret;
-	else
-		return val;
-}
-EXPORT_SYMBOL_GPL(wm8994_reg_read);
-
-/**
- * wm8994_bulk_read: Read multiple WM8994 registers
- *
- * @wm8994: Device to read from
- * @reg: First register
- * @count: Number of registers
- * @buf: Buffer to fill.  The data will be returned big endian.
- */
-int wm8994_bulk_read(struct wm8994 *wm8994, unsigned short reg,
-		     int count, u16 *buf)
-{
-	return regmap_bulk_read(wm8994->regmap, reg, buf, count);
-}
-
-/**
- * wm8994_reg_write: Write a single WM8994 register.
- *
- * @wm8994: Device to write to.
- * @reg: Register to write to.
- * @val: Value to write.
- */
-int wm8994_reg_write(struct wm8994 *wm8994, unsigned short reg,
-		     unsigned short val)
-{
-	return regmap_write(wm8994->regmap, reg, val);
-}
-EXPORT_SYMBOL_GPL(wm8994_reg_write);
-
-/**
- * wm8994_bulk_write: Write multiple WM8994 registers
- *
- * @wm8994: Device to write to
- * @reg: First register
- * @count: Number of registers
- * @buf: Buffer to write from.  Data must be big-endian formatted.
- */
-int wm8994_bulk_write(struct wm8994 *wm8994, unsigned short reg,
-		      int count, const u16 *buf)
-{
-	return regmap_raw_write(wm8994->regmap, reg, buf, count * sizeof(u16));
-}
-EXPORT_SYMBOL_GPL(wm8994_bulk_write);
-
-/**
- * wm8994_set_bits: Set the value of a bitfield in a WM8994 register
- *
- * @wm8994: Device to write to.
- * @reg: Register to write to.
- * @mask: Mask of bits to set.
- * @val: Value to set (unshifted)
- */
-int wm8994_set_bits(struct wm8994 *wm8994, unsigned short reg,
-		    unsigned short mask, unsigned short val)
-{
-	return regmap_update_bits(wm8994->regmap, reg, mask, val);
-}
-EXPORT_SYMBOL_GPL(wm8994_set_bits);
-
 static struct mfd_cell wm8994_regulator_devs[] = {
 	{
 		.name = "wm8994-ldo",
diff --git a/include/linux/mfd/wm8994/core.h b/include/linux/mfd/wm8994/core.h
index 40854ac0ba3d..3fbcf3d4a0fe 100644
--- a/include/linux/mfd/wm8994/core.h
+++ b/include/linux/mfd/wm8994/core.h
@@ -85,16 +85,43 @@ struct wm8994 {
 };
 
 /* Device I/O API */
-int wm8994_reg_read(struct wm8994 *wm8994, unsigned short reg);
-int wm8994_reg_write(struct wm8994 *wm8994, unsigned short reg,
-		 unsigned short val);
-int wm8994_set_bits(struct wm8994 *wm8994, unsigned short reg,
-		    unsigned short mask, unsigned short val);
-int wm8994_bulk_read(struct wm8994 *wm8994, unsigned short reg,
-		     int count, u16 *buf);
-int wm8994_bulk_write(struct wm8994 *wm8994, unsigned short reg,
-		     int count, const u16 *buf);
 
+static inline int wm8994_reg_read(struct wm8994 *wm8994, unsigned short reg)
+{
+	unsigned int val;
+	int ret;
+
+	ret = regmap_read(wm8994->regmap, reg, &val);
+
+	if (ret < 0)
+		return ret;
+	else
+		return val;
+}
+
+static inline int wm8994_reg_write(struct wm8994 *wm8994, unsigned short reg,
+				   unsigned short val)
+{
+	return regmap_write(wm8994->regmap, reg, val);
+}
+
+static inline int wm8994_bulk_read(struct wm8994 *wm8994, unsigned short reg,
+				   int count, u16 *buf)
+{
+	return regmap_bulk_read(wm8994->regmap, reg, buf, count);
+}
+
+static inline int wm8994_bulk_write(struct wm8994 *wm8994, unsigned short reg,
+				    int count, const u16 *buf)
+{
+	return regmap_raw_write(wm8994->regmap, reg, buf, count * sizeof(u16));
+}
+
+static inline int wm8994_set_bits(struct wm8994 *wm8994, unsigned short reg,
+		    unsigned short mask, unsigned short val)
+{
+	return regmap_update_bits(wm8994->regmap, reg, mask, val);
+}
 
 /* Helper to save on boilerplate */
 static inline int wm8994_request_irq(struct wm8994 *wm8994, int irq,
-- 
cgit 


From 234506ad3f28d5eea85f739f637cde6d9e8f5a88 Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Fri, 6 Sep 2013 17:17:13 -0600
Subject: mfd: tps6586x: Implement irq_set_wake

rtc-tps6586x calls enable/disable_irq_wake() during suspend/resume. Since
the main tps6586x irq_chip doesn't implement .irq_set_wake, this causes
the RTC's enable_irq_wake() to fail, and the disable_irq_wake() to spew a
WARN about unbalanced wake disable. Solve this by implementing
.irq_set_wake.

Also, I assume that enable_irq_wake() shouldn't be called unconditionally
in tps6586x_irq_init(), since this is now triggered by IRQ children
setting up their cascaded IRQs for wake. So, remove that.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/tps6586x.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c
index f54fe4d4f77b..68906b17ee52 100644
--- a/drivers/mfd/tps6586x.c
+++ b/drivers/mfd/tps6586x.c
@@ -124,6 +124,7 @@ struct tps6586x {
 	struct i2c_client	*client;
 	struct regmap		*regmap;
 
+	int			irq;
 	struct irq_chip		irq_chip;
 	struct mutex		irq_lock;
 	int			irq_base;
@@ -261,12 +262,23 @@ static void tps6586x_irq_sync_unlock(struct irq_data *data)
 	mutex_unlock(&tps6586x->irq_lock);
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int tps6586x_irq_set_wake(struct irq_data *irq_data, unsigned int on)
+{
+	struct tps6586x *tps6586x = irq_data_get_irq_chip_data(irq_data);
+	return irq_set_irq_wake(tps6586x->irq, on);
+}
+#else
+#define tps6586x_irq_set_wake NULL
+#endif
+
 static struct irq_chip tps6586x_irq_chip = {
 	.name = "tps6586x",
 	.irq_bus_lock = tps6586x_irq_lock,
 	.irq_bus_sync_unlock = tps6586x_irq_sync_unlock,
 	.irq_disable = tps6586x_irq_disable,
 	.irq_enable = tps6586x_irq_enable,
+	.irq_set_wake = tps6586x_irq_set_wake,
 };
 
 static int tps6586x_irq_map(struct irq_domain *h, unsigned int virq,
@@ -331,6 +343,8 @@ static int tps6586x_irq_init(struct tps6586x *tps6586x, int irq,
 	int new_irq_base;
 	int irq_num = ARRAY_SIZE(tps6586x_irqs);
 
+	tps6586x->irq = irq;
+
 	mutex_init(&tps6586x->irq_lock);
 	for (i = 0; i < 5; i++) {
 		tps6586x->mask_reg[i] = 0xff;
@@ -360,10 +374,8 @@ static int tps6586x_irq_init(struct tps6586x *tps6586x, int irq,
 	ret = request_threaded_irq(irq, NULL, tps6586x_irq, IRQF_ONESHOT,
 				   "tps6586x", tps6586x);
 
-	if (!ret) {
+	if (!ret)
 		device_init_wakeup(tps6586x->dev, 1);
-		enable_irq_wake(irq);
-	}
 
 	return ret;
 }
-- 
cgit 


From dae188c6092a3f085bf7fc335b6c0e0420d3dd8f Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Fri, 6 Sep 2013 17:48:35 +0100
Subject: mfd: wm8994: Remove unused irq_lock

Since the conversion to regmap-irq irq_lock has been unused.

Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 include/linux/mfd/wm8994/core.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/include/linux/mfd/wm8994/core.h b/include/linux/mfd/wm8994/core.h
index 3fbcf3d4a0fe..eefafa62d304 100644
--- a/include/linux/mfd/wm8994/core.h
+++ b/include/linux/mfd/wm8994/core.h
@@ -56,8 +56,6 @@ struct irq_domain;
 #define WM8994_IRQ_GPIO(x) (x + WM8994_IRQ_TEMP_WARN)
 
 struct wm8994 {
-	struct mutex irq_lock;
-
 	struct wm8994_pdata pdata;
 
 	enum wm8994_type type;
-- 
cgit 


From ecf67ac335bba0867ce7c6470ae4a3574e0f2838 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 10 Sep 2013 16:25:50 +0530
Subject: mfd: aat2870: Fix sparse error

Fixes the following error:
drivers/mfd/aat2870-core.c:296:20: error:
incompatible types in comparison expression (different type sizes)

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/aat2870-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/aat2870-core.c b/drivers/mfd/aat2870-core.c
index 6f68472e0ca6..14d9542a4eed 100644
--- a/drivers/mfd/aat2870-core.c
+++ b/drivers/mfd/aat2870-core.c
@@ -293,7 +293,7 @@ static ssize_t aat2870_reg_write_file(struct file *file,
 	unsigned long addr, val;
 	int ret;
 
-	buf_size = min(count, (sizeof(buf)-1));
+	buf_size = min(count, (size_t)(sizeof(buf)-1));
 	if (copy_from_user(buf, user_buf, buf_size)) {
 		dev_err(aat2870->dev, "Failed to copy from user\n");
 		return -EFAULT;
-- 
cgit 


From 1a54b7dabf8f20df2894aed9683155ff89fc20e8 Mon Sep 17 00:00:00 2001
From: Matthias Kaehlcke <matthias.list@kaehlcke.net>
Date: Tue, 10 Sep 2013 23:02:18 +0200
Subject: mfd: ti_am335x_tscadc: Fix idle timeout value

The old timeout value was based on the assumption that the minimum values are
used for the open and sample delay and no averaging is done. In fact the ADC
and touchscreen driver both use an open delay of 152 cycles and averaging over
16 samples. This patch adjusts the timeout value accordingly

Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 include/linux/mfd/ti_am335x_tscadc.h | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/include/linux/mfd/ti_am335x_tscadc.h b/include/linux/mfd/ti_am335x_tscadc.h
index 25f2c611ab01..4befdb85dd9c 100644
--- a/include/linux/mfd/ti_am335x_tscadc.h
+++ b/include/linux/mfd/ti_am335x_tscadc.h
@@ -125,13 +125,18 @@
 #define TOTAL_CHANNELS		8
 
 /*
-* ADC runs at 3MHz, and it takes
-* 15 cycles to latch one data output.
-* Hence the idle time for ADC to
-* process one sample data would be
-* around 5 micro seconds.
-*/
-#define IDLE_TIMEOUT 5 /* microsec */
+ * time in us for processing a single channel, calculated as follows:
+ *
+ * num cycles = open delay + (sample delay + conv time) * averaging
+ *
+ * num cycles: 152 + (1 + 13) * 16 = 376
+ *
+ * clock frequency: 26MHz / 8 = 3.25MHz
+ * clock period: 1 / 3.25MHz = 308ns
+ *
+ * processing time: 376 * 308ns = 116us
+ */
+#define IDLE_TIMEOUT 116 /* microsec */
 
 #define TSCADC_CELLS		2
 
-- 
cgit 


From 18fefda9ee13e377cf6c5542818b7be066972843 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 11 Sep 2013 19:20:37 +0800
Subject: mfd: ucb1x00-core: Fix error return code in ucb1x00_probe()

Fix to return a negative error code in the irq alloc error handling
case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/ucb1x00-core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/ucb1x00-core.c b/drivers/mfd/ucb1x00-core.c
index d5966e6b5a7d..0313f839e8fa 100644
--- a/drivers/mfd/ucb1x00-core.c
+++ b/drivers/mfd/ucb1x00-core.c
@@ -553,6 +553,7 @@ static int ucb1x00_probe(struct mcp *mcp)
 	if (ucb->irq_base < 0) {
 		dev_err(&ucb->dev, "unable to allocate 16 irqs: %d\n",
 			ucb->irq_base);
+		ret = ucb->irq_base;
 		goto err_irq_alloc;
 	}
 
-- 
cgit 


From 1fcd5d815e12eafa7304f1dd39900eaa332085eb Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:41:32 +0900
Subject: mfd: lpc_ich: Remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/lpc_ich.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c
index 9483bc8472a5..316af07ede3f 100644
--- a/drivers/mfd/lpc_ich.c
+++ b/drivers/mfd/lpc_ich.c
@@ -969,7 +969,6 @@ static int lpc_ich_probe(struct pci_dev *dev,
 	if (!cell_added) {
 		dev_warn(&dev->dev, "No MFD cells added\n");
 		lpc_ich_restore_config_space(dev);
-		pci_set_drvdata(dev, NULL);
 		return -ENODEV;
 	}
 
@@ -980,7 +979,6 @@ static void lpc_ich_remove(struct pci_dev *dev)
 {
 	mfd_remove_devices(&dev->dev);
 	lpc_ich_restore_config_space(dev);
-	pci_set_drvdata(dev, NULL);
 }
 
 static struct pci_driver lpc_ich_driver = {
-- 
cgit 


From 928dfb2c750da3e1db181742198da4d9026012b0 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 12 Sep 2013 15:43:07 +0900
Subject: mfd: sm501: Remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/sm501.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/mfd/sm501.c b/drivers/mfd/sm501.c
index 3799a3d64415..c2c8c91c6c7b 100644
--- a/drivers/mfd/sm501.c
+++ b/drivers/mfd/sm501.c
@@ -1660,7 +1660,6 @@ static int sm501_pci_probe(struct pci_dev *dev,
  err3:
 	pci_disable_device(dev);
  err2:
-	pci_set_drvdata(dev, NULL);
 	kfree(sm);
  err1:
 	return err;
@@ -1695,7 +1694,6 @@ static void sm501_pci_remove(struct pci_dev *dev)
 	release_resource(sm->regs_claim);
 	kfree(sm->regs_claim);
 
-	pci_set_drvdata(dev, NULL);
 	pci_disable_device(dev);
 }
 
-- 
cgit 


From 7902fe8cbc58ae2bd3dad1a8ecf28ce83b1ba3a8 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Fri, 13 Sep 2013 11:23:57 +0900
Subject: mfd: timberdale: Remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL. It also removes unnecessary label such
as 'err_request'.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/timberdale.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/mfd/timberdale.c b/drivers/mfd/timberdale.c
index a6755ec7bd6a..dbb34f94e5e3 100644
--- a/drivers/mfd/timberdale.c
+++ b/drivers/mfd/timberdale.c
@@ -678,7 +678,7 @@ static int timb_probe(struct pci_dev *dev,
 	priv->ctl_mapbase = mapbase + CHIPCTLOFFSET;
 	if (!request_mem_region(priv->ctl_mapbase, CHIPCTLSIZE, "timb-ctl")) {
 		dev_err(&dev->dev, "Failed to request ctl mem\n");
-		goto err_request;
+		goto err_start;
 	}
 
 	priv->ctl_membase = ioremap(priv->ctl_mapbase, CHIPCTLSIZE);
@@ -828,13 +828,10 @@ err_config:
 	iounmap(priv->ctl_membase);
 err_ioremap:
 	release_mem_region(priv->ctl_mapbase, CHIPCTLSIZE);
-err_request:
-	pci_set_drvdata(dev, NULL);
 err_start:
 	pci_disable_device(dev);
 err_enable:
 	kfree(priv);
-	pci_set_drvdata(dev, NULL);
 	return -ENODEV;
 }
 
@@ -851,7 +848,6 @@ static void timb_remove(struct pci_dev *dev)
 
 	pci_disable_msix(dev);
 	pci_disable_device(dev);
-	pci_set_drvdata(dev, NULL);
 	kfree(priv);
 }
 
-- 
cgit 


From 26b818511c6562ce372566c219a2ef1afea35fe6 Mon Sep 17 00:00:00 2001
From: Wei WANG <wei_wang@realsil.com.cn>
Date: Fri, 13 Sep 2013 17:45:43 +0800
Subject: mfd: rtsx: Modify rts5249_optimize_phy

In some platforms, specially Thinkpad series, rts5249 won't be
initialized properly. So we need adjust some phy parameters to
improve the compatibility issue.

It is a little different between simulation and real chip. We have
no idea about which configuration is better before tape-out. We set
default settings according to simulation, but need to tune these
parameters after getting the real chip.

I can't explain every change in detail here. The below information is
just a rough description:

PHY_REG_REV: Disable internal clkreq_tx, enable rx_pwst
PHY_BPCR: No change, just turn the magic number to macro definitions
PHY_PCR: Change OOBS sensitivity, from 60mV to 90mV
PHY_RCR2: Control charge-pump current automatically
PHY_FLD4: Use TX cmu reference clock
PHY_RDR: Change RXDSEL from 30nF to 1.9nF
PHY_RCR1: Change the duration between adp_st and asserting cp_en from
0.32 us to 0.64us
PHY_FLD3: Adjust internal timers
PHY_TUNE: Fine tune the regulator12 output voltage

Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/rts5249.c        | 48 +++++++++++++++++++++++++++++++++++++--
 include/linux/mfd/rtsx_pci.h | 53 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 99 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/rts5249.c b/drivers/mfd/rts5249.c
index 3b835f593e35..573de7bfcced 100644
--- a/drivers/mfd/rts5249.c
+++ b/drivers/mfd/rts5249.c
@@ -130,13 +130,57 @@ static int rts5249_optimize_phy(struct rtsx_pcr *pcr)
 {
 	int err;
 
-	err = rtsx_pci_write_phy_register(pcr, PHY_REG_REV, 0xFE46);
+	err = rtsx_pci_write_phy_register(pcr, PHY_REG_REV,
+			PHY_REG_REV_RESV | PHY_REG_REV_RXIDLE_LATCHED |
+			PHY_REG_REV_P1_EN | PHY_REG_REV_RXIDLE_EN |
+			PHY_REG_REV_RX_PWST | PHY_REG_REV_CLKREQ_DLY_TIMER_1_0 |
+			PHY_REG_REV_STOP_CLKRD | PHY_REG_REV_STOP_CLKWR);
 	if (err < 0)
 		return err;
 
 	msleep(1);
 
-	return rtsx_pci_write_phy_register(pcr, PHY_BPCR, 0x05C0);
+	err = rtsx_pci_write_phy_register(pcr, PHY_BPCR,
+			PHY_BPCR_IBRXSEL | PHY_BPCR_IBTXSEL |
+			PHY_BPCR_IB_FILTER | PHY_BPCR_CMIRROR_EN);
+	if (err < 0)
+		return err;
+	err = rtsx_pci_write_phy_register(pcr, PHY_PCR,
+			PHY_PCR_FORCE_CODE | PHY_PCR_OOBS_CALI_50 |
+			PHY_PCR_OOBS_VCM_08 | PHY_PCR_OOBS_SEN_90 |
+			PHY_PCR_RSSI_EN);
+	if (err < 0)
+		return err;
+	err = rtsx_pci_write_phy_register(pcr, PHY_RCR2,
+			PHY_RCR2_EMPHASE_EN | PHY_RCR2_NADJR |
+			PHY_RCR2_CDR_CP_10 | PHY_RCR2_CDR_SR_2 |
+			PHY_RCR2_FREQSEL_12 | PHY_RCR2_CPADJEN |
+			PHY_RCR2_CDR_SC_8 | PHY_RCR2_CALIB_LATE);
+	if (err < 0)
+		return err;
+	err = rtsx_pci_write_phy_register(pcr, PHY_FLD4,
+			PHY_FLD4_FLDEN_SEL | PHY_FLD4_REQ_REF |
+			PHY_FLD4_RXAMP_OFF | PHY_FLD4_REQ_ADDA |
+			PHY_FLD4_BER_COUNT | PHY_FLD4_BER_TIMER |
+			PHY_FLD4_BER_CHK_EN);
+	if (err < 0)
+		return err;
+	err = rtsx_pci_write_phy_register(pcr, PHY_RDR, PHY_RDR_RXDSEL_1_9);
+	if (err < 0)
+		return err;
+	err = rtsx_pci_write_phy_register(pcr, PHY_RCR1,
+			PHY_RCR1_ADP_TIME | PHY_RCR1_VCO_COARSE);
+	if (err < 0)
+		return err;
+	err = rtsx_pci_write_phy_register(pcr, PHY_FLD3,
+			PHY_FLD3_TIMER_4 | PHY_FLD3_TIMER_6 |
+			PHY_FLD3_RXDELINK);
+	if (err < 0)
+		return err;
+	return rtsx_pci_write_phy_register(pcr, PHY_TUNE,
+			PHY_TUNE_TUNEREF_1_0 | PHY_TUNE_VBGSEL_1252 |
+			PHY_TUNE_SDBUS_33 | PHY_TUNE_TUNED18 |
+			PHY_TUNE_TUNED12);
 }
 
 static int rts5249_turn_on_led(struct rtsx_pcr *pcr)
diff --git a/include/linux/mfd/rtsx_pci.h b/include/linux/mfd/rtsx_pci.h
index d1382dfbeff0..0ce772105508 100644
--- a/include/linux/mfd/rtsx_pci.h
+++ b/include/linux/mfd/rtsx_pci.h
@@ -756,6 +756,59 @@
 #define PCR_SETTING_REG2		0x814
 #define PCR_SETTING_REG3		0x747
 
+/* Phy bits */
+#define PHY_PCR_FORCE_CODE			0xB000
+#define PHY_PCR_OOBS_CALI_50			0x0800
+#define PHY_PCR_OOBS_VCM_08			0x0200
+#define PHY_PCR_OOBS_SEN_90			0x0040
+#define PHY_PCR_RSSI_EN				0x0002
+
+#define PHY_RCR1_ADP_TIME			0x0100
+#define PHY_RCR1_VCO_COARSE			0x001F
+
+#define PHY_RCR2_EMPHASE_EN			0x8000
+#define PHY_RCR2_NADJR				0x4000
+#define PHY_RCR2_CDR_CP_10			0x0400
+#define PHY_RCR2_CDR_SR_2			0x0100
+#define PHY_RCR2_FREQSEL_12			0x0040
+#define PHY_RCR2_CPADJEN			0x0020
+#define PHY_RCR2_CDR_SC_8			0x0008
+#define PHY_RCR2_CALIB_LATE			0x0002
+
+#define PHY_RDR_RXDSEL_1_9			0x4000
+
+#define PHY_TUNE_TUNEREF_1_0			0x4000
+#define PHY_TUNE_VBGSEL_1252			0x0C00
+#define PHY_TUNE_SDBUS_33			0x0200
+#define PHY_TUNE_TUNED18			0x01C0
+#define PHY_TUNE_TUNED12			0X0020
+
+#define PHY_BPCR_IBRXSEL			0x0400
+#define PHY_BPCR_IBTXSEL			0x0100
+#define PHY_BPCR_IB_FILTER			0x0080
+#define PHY_BPCR_CMIRROR_EN			0x0040
+
+#define PHY_REG_REV_RESV			0xE000
+#define PHY_REG_REV_RXIDLE_LATCHED		0x1000
+#define PHY_REG_REV_P1_EN			0x0800
+#define PHY_REG_REV_RXIDLE_EN			0x0400
+#define PHY_REG_REV_CLKREQ_DLY_TIMER_1_0	0x0040
+#define PHY_REG_REV_STOP_CLKRD			0x0020
+#define PHY_REG_REV_RX_PWST			0x0008
+#define PHY_REG_REV_STOP_CLKWR			0x0004
+
+#define PHY_FLD3_TIMER_4			0x7800
+#define PHY_FLD3_TIMER_6			0x00E0
+#define PHY_FLD3_RXDELINK			0x0004
+
+#define PHY_FLD4_FLDEN_SEL			0x4000
+#define PHY_FLD4_REQ_REF			0x2000
+#define PHY_FLD4_RXAMP_OFF			0x1000
+#define PHY_FLD4_REQ_ADDA			0x0800
+#define PHY_FLD4_BER_COUNT			0x00E0
+#define PHY_FLD4_BER_TIMER			0x000A
+#define PHY_FLD4_BER_CHK_EN			0x0001
+
 #define rtsx_pci_init_cmd(pcr)		((pcr)->ci = 0)
 
 struct rtsx_pcr;
-- 
cgit 


From 9875555e449cc46610cdf10302e3e66365a41e94 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Tue, 17 Sep 2013 15:23:04 +0100
Subject: mfd: arizona: Update registers for WM5110 DSP

DSPx_CONTROL_1 and DSPx_CLOCKING_1 are not volatile registers and are
incorrectly marked as such, fix this. Also add the DSP scratch
registers, which are frequently used to output debug info from the DSP
core.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/wm5110-tables.c | 34 ++++++++++++++++++++++++++++++++--
 1 file changed, 32 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/wm5110-tables.c b/drivers/mfd/wm5110-tables.c
index 3113e39b318e..a8a9bb972cfe 100644
--- a/drivers/mfd/wm5110-tables.c
+++ b/drivers/mfd/wm5110-tables.c
@@ -2291,21 +2291,37 @@ static bool wm5110_readable_register(struct device *dev, unsigned int reg)
 	case ARIZONA_DSP1_STATUS_1:
 	case ARIZONA_DSP1_STATUS_2:
 	case ARIZONA_DSP1_STATUS_3:
+	case ARIZONA_DSP1_SCRATCH_0:
+	case ARIZONA_DSP1_SCRATCH_1:
+	case ARIZONA_DSP1_SCRATCH_2:
+	case ARIZONA_DSP1_SCRATCH_3:
 	case ARIZONA_DSP2_CONTROL_1:
 	case ARIZONA_DSP2_CLOCKING_1:
 	case ARIZONA_DSP2_STATUS_1:
 	case ARIZONA_DSP2_STATUS_2:
 	case ARIZONA_DSP2_STATUS_3:
+	case ARIZONA_DSP2_SCRATCH_0:
+	case ARIZONA_DSP2_SCRATCH_1:
+	case ARIZONA_DSP2_SCRATCH_2:
+	case ARIZONA_DSP2_SCRATCH_3:
 	case ARIZONA_DSP3_CONTROL_1:
 	case ARIZONA_DSP3_CLOCKING_1:
 	case ARIZONA_DSP3_STATUS_1:
 	case ARIZONA_DSP3_STATUS_2:
 	case ARIZONA_DSP3_STATUS_3:
+	case ARIZONA_DSP3_SCRATCH_0:
+	case ARIZONA_DSP3_SCRATCH_1:
+	case ARIZONA_DSP3_SCRATCH_2:
+	case ARIZONA_DSP3_SCRATCH_3:
 	case ARIZONA_DSP4_CONTROL_1:
 	case ARIZONA_DSP4_CLOCKING_1:
 	case ARIZONA_DSP4_STATUS_1:
 	case ARIZONA_DSP4_STATUS_2:
 	case ARIZONA_DSP4_STATUS_3:
+	case ARIZONA_DSP4_SCRATCH_0:
+	case ARIZONA_DSP4_SCRATCH_1:
+	case ARIZONA_DSP4_SCRATCH_2:
+	case ARIZONA_DSP4_SCRATCH_3:
 		return true;
 	default:
 		return false;
@@ -2352,20 +2368,34 @@ static bool wm5110_volatile_register(struct device *dev, unsigned int reg)
 	case ARIZONA_FX_CTRL2:
 	case ARIZONA_ASRC_STATUS:
 	case ARIZONA_DSP_STATUS:
-	case ARIZONA_DSP1_CONTROL_1:
-	case ARIZONA_DSP1_CLOCKING_1:
 	case ARIZONA_DSP1_STATUS_1:
 	case ARIZONA_DSP1_STATUS_2:
 	case ARIZONA_DSP1_STATUS_3:
+	case ARIZONA_DSP1_SCRATCH_0:
+	case ARIZONA_DSP1_SCRATCH_1:
+	case ARIZONA_DSP1_SCRATCH_2:
+	case ARIZONA_DSP1_SCRATCH_3:
 	case ARIZONA_DSP2_STATUS_1:
 	case ARIZONA_DSP2_STATUS_2:
 	case ARIZONA_DSP2_STATUS_3:
+	case ARIZONA_DSP2_SCRATCH_0:
+	case ARIZONA_DSP2_SCRATCH_1:
+	case ARIZONA_DSP2_SCRATCH_2:
+	case ARIZONA_DSP2_SCRATCH_3:
 	case ARIZONA_DSP3_STATUS_1:
 	case ARIZONA_DSP3_STATUS_2:
 	case ARIZONA_DSP3_STATUS_3:
+	case ARIZONA_DSP3_SCRATCH_0:
+	case ARIZONA_DSP3_SCRATCH_1:
+	case ARIZONA_DSP3_SCRATCH_2:
+	case ARIZONA_DSP3_SCRATCH_3:
 	case ARIZONA_DSP4_STATUS_1:
 	case ARIZONA_DSP4_STATUS_2:
 	case ARIZONA_DSP4_STATUS_3:
+	case ARIZONA_DSP4_SCRATCH_0:
+	case ARIZONA_DSP4_SCRATCH_1:
+	case ARIZONA_DSP4_SCRATCH_2:
+	case ARIZONA_DSP4_SCRATCH_3:
 		return true;
 	default:
 		return false;
-- 
cgit 


From bef781617691488472f31ca9e5978de5bd064c56 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Tue, 17 Sep 2013 15:44:20 +0100
Subject: mfd: wm5110: Update noise gate default to match the patch file

The default value for the noise gate control register is changed in the
patch file, we need to reflect this in the defaults array, this patch
does so.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/wm5110-tables.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/wm5110-tables.c b/drivers/mfd/wm5110-tables.c
index a8a9bb972cfe..f71bd9b3d0a2 100644
--- a/drivers/mfd/wm5110-tables.c
+++ b/drivers/mfd/wm5110-tables.c
@@ -592,7 +592,7 @@ static const struct reg_default wm5110_reg_default[] = {
 	{ 0x0000043E, 0x0080 },    /* R1086  - DAC Volume Limit 6R */
 	{ 0x0000043F, 0x0800 },    /* R1087  - Noise Gate Select 6R */
 	{ 0x00000450, 0x0000 },    /* R1104  - DAC AEC Control 1 */
-	{ 0x00000458, 0x0001 },    /* R1112  - Noise Gate Control */
+	{ 0x00000458, 0x0000 },    /* R1112  - Noise Gate Control */
 	{ 0x00000480, 0x0040 },    /* R1152  - Class W ANC Threshold 1 */
 	{ 0x00000481, 0x0040 },    /* R1153  - Class W ANC Threshold 2 */
 	{ 0x00000490, 0x0069 },    /* R1168  - PDM SPK1 CTRL 1 */
-- 
cgit 


From af1192d769a146328cabfe11916f107f35561ae8 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 20 Sep 2013 14:19:34 +0530
Subject: mfd: mc12xx-i2c: rtsx_pcr: ti-ssp: Remove redundant dev_set_drvdata

Driver core sets driver data to NULL upon failure or remove.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/mc13xxx-i2c.c | 1 -
 drivers/mfd/rtsx_pcr.c    | 5 +----
 drivers/mfd/ti-ssp.c      | 1 -
 3 files changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/mfd/mc13xxx-i2c.c b/drivers/mfd/mc13xxx-i2c.c
index f745e27ee874..898bd335cd8e 100644
--- a/drivers/mfd/mc13xxx-i2c.c
+++ b/drivers/mfd/mc13xxx-i2c.c
@@ -78,7 +78,6 @@ static int mc13xxx_i2c_probe(struct i2c_client *client,
 		ret = PTR_ERR(mc13xxx->regmap);
 		dev_err(mc13xxx->dev, "Failed to initialize register map: %d\n",
 				ret);
-		dev_set_drvdata(&client->dev, NULL);
 		return ret;
 	}
 
diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c
index e6ae7720f9e1..11e20afbdcac 100644
--- a/drivers/mfd/rtsx_pcr.c
+++ b/drivers/mfd/rtsx_pcr.c
@@ -1149,7 +1149,7 @@ static int rtsx_pci_probe(struct pci_dev *pcidev,
 	pcr->remap_addr = ioremap_nocache(base, len);
 	if (!pcr->remap_addr) {
 		ret = -ENOMEM;
-		goto free_host;
+		goto free_handle;
 	}
 
 	pcr->rtsx_resv_buf = dma_alloc_coherent(&(pcidev->dev),
@@ -1209,8 +1209,6 @@ disable_msi:
 			pcr->rtsx_resv_buf, pcr->rtsx_resv_buf_addr);
 unmap:
 	iounmap(pcr->remap_addr);
-free_host:
-	dev_set_drvdata(&pcidev->dev, NULL);
 free_handle:
 	kfree(handle);
 free_pcr:
@@ -1242,7 +1240,6 @@ static void rtsx_pci_remove(struct pci_dev *pcidev)
 		pci_disable_msi(pcr->pci);
 	iounmap(pcr->remap_addr);
 
-	dev_set_drvdata(&pcidev->dev, NULL);
 	pci_release_regions(pcidev);
 	pci_disable_device(pcidev);
 
diff --git a/drivers/mfd/ti-ssp.c b/drivers/mfd/ti-ssp.c
index 1c2b994e1f6c..71e3e0c5bf73 100644
--- a/drivers/mfd/ti-ssp.c
+++ b/drivers/mfd/ti-ssp.c
@@ -445,7 +445,6 @@ static int ti_ssp_remove(struct platform_device *pdev)
 	iounmap(ssp->regs);
 	release_mem_region(ssp->res->start, resource_size(ssp->res));
 	kfree(ssp);
-	dev_set_drvdata(dev, NULL);
 	return 0;
 }
 
-- 
cgit 


From ca13ce3701900c5b64c2c477a9cfea396c6e79c3 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Sat, 21 Sep 2013 11:02:04 +0100
Subject: mfd: arizona: Correct register definition for FLL2_SYNC_BW

We had specified the mask twice for FLL2_SYNC_BW change the first mask
definition in a bit definition to match the other fields.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 include/linux/mfd/arizona/registers.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/mfd/arizona/registers.h b/include/linux/mfd/arizona/registers.h
index 4706d3d46e56..cb49417f8ba9 100644
--- a/include/linux/mfd/arizona/registers.h
+++ b/include/linux/mfd/arizona/registers.h
@@ -1908,7 +1908,7 @@
 #define ARIZONA_FLL2_SYNC_GAIN_MASK              0x003c  /* FLL2_SYNC_GAIN */
 #define ARIZONA_FLL2_SYNC_GAIN_SHIFT                  2  /* FLL2_SYNC_GAIN */
 #define ARIZONA_FLL2_SYNC_GAIN_WIDTH                  4  /* FLL2_SYNC_GAIN */
-#define ARIZONA_FLL2_SYNC_BW_MASK                0x0001  /* FLL2_SYNC_BW */
+#define ARIZONA_FLL2_SYNC_BW                     0x0001  /* FLL2_SYNC_BW */
 #define ARIZONA_FLL2_SYNC_BW_MASK                0x0001  /* FLL2_SYNC_BW */
 #define ARIZONA_FLL2_SYNC_BW_SHIFT                    0  /* FLL2_SYNC_BW */
 #define ARIZONA_FLL2_SYNC_BW_WIDTH                    1  /* FLL2_SYNC_BW */
-- 
cgit 


From 60013b94d9530346db963474f7fde8aecabaff25 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Sun, 22 Sep 2013 21:49:18 +0200
Subject: mfd: Add STw481x driver

This adds a driver for the STw481x PMICs found in the Nomadik
family of platforms. This one uses pure device tree probing.
Print some of the OTP registers on boot and register a regulator
MFD child.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/Kconfig         |  10 ++
 drivers/mfd/Makefile        |   1 +
 drivers/mfd/stw481x.c       | 250 ++++++++++++++++++++++++++++++++++++++++++++
 include/linux/mfd/stw481x.h |  56 ++++++++++
 4 files changed, 317 insertions(+)
 create mode 100644 drivers/mfd/stw481x.c
 create mode 100644 include/linux/mfd/stw481x.h

diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 914c3d142f78..d078fe4a82ef 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -1151,6 +1151,16 @@ config MFD_WM8994
 	  core support for the WM8994, in order to use the actual
 	  functionaltiy of the device other drivers must be enabled.
 
+config MFD_STW481X
+	bool "Support for ST Microelectronics STw481x"
+	depends on I2C && ARCH_NOMADIK
+	select REGMAP_I2C
+	select MFD_CORE
+	help
+	  Select this option to enable the STw481x chip driver used
+	  in various ST Microelectronics and ST-Ericsson embedded
+	  Nomadik series.
+
 endmenu
 endif
 
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 15b905c6553c..656cec90a1e5 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -162,3 +162,4 @@ obj-$(CONFIG_MFD_LM3533)	+= lm3533-core.o lm3533-ctrlbank.o
 obj-$(CONFIG_VEXPRESS_CONFIG)	+= vexpress-config.o vexpress-sysreg.o
 obj-$(CONFIG_MFD_RETU)		+= retu-mfd.o
 obj-$(CONFIG_MFD_AS3711)	+= as3711.o
+obj-$(CONFIG_MFD_STW481X)	+= stw481x.o
diff --git a/drivers/mfd/stw481x.c b/drivers/mfd/stw481x.c
new file mode 100644
index 000000000000..1243d5c6a448
--- /dev/null
+++ b/drivers/mfd/stw481x.c
@@ -0,0 +1,250 @@
+/*
+ * Core driver for STw4810/STw4811
+ *
+ * Copyright (C) 2013 ST-Ericsson SA
+ * Written on behalf of Linaro for ST-Ericsson
+ *
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/stw481x.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/spinlock.h>
+#include <linux/slab.h>
+
+/*
+ * This driver can only access the non-USB portions of STw4811, the register
+ * range 0x00-0x10 dealing with USB is bound to the two special I2C pins used
+ * for USB control.
+ */
+
+/* Registers inside the power control address space */
+#define STW_PC_VCORE_SEL	0x05U
+#define STW_PC_VAUX_SEL		0x06U
+#define STW_PC_VPLL_SEL		0x07U
+
+/**
+ * stw481x_get_pctl_reg() - get a power control register
+ * @stw481x: handle to the stw481x chip
+ * @reg: power control register to fetch
+ *
+ * The power control registers is a set of one-time-programmable registers
+ * in its own register space, accessed by writing addess bits to these
+ * two registers: bits 7,6,5 of PCTL_REG_LO corresponds to the 3 LSBs of
+ * the address and bits 8,9 of PCTL_REG_HI corresponds to the 2 MSBs of
+ * the address, forming an address space of 5 bits, i.e. 32 registers
+ * 0x00 ... 0x1f can be obtained.
+ */
+static int stw481x_get_pctl_reg(struct stw481x *stw481x, u8 reg)
+{
+	u8 msb = (reg >> 3) & 0x03;
+	u8 lsb = (reg << 5) & 0xe0;
+	unsigned int val;
+	u8 vrfy;
+	int ret;
+
+	ret = regmap_write(stw481x->map, STW_PCTL_REG_HI, msb);
+	if (ret)
+		return ret;
+	ret = regmap_write(stw481x->map, STW_PCTL_REG_LO, lsb);
+	if (ret)
+		return ret;
+	ret = regmap_read(stw481x->map, STW_PCTL_REG_HI, &val);
+	if (ret)
+		return ret;
+	vrfy = (val & 0x03) << 3;
+	ret = regmap_read(stw481x->map, STW_PCTL_REG_LO, &val);
+	if (ret)
+		return ret;
+	vrfy |= ((val >> 5) & 0x07);
+	if (vrfy != reg)
+		return -EIO;
+	return (val >> 1) & 0x0f;
+}
+
+static int stw481x_startup(struct stw481x *stw481x)
+{
+	/* Voltages multiplied by 100 */
+	u8 vcore_val[] = { 100, 105, 110, 115, 120, 122, 124, 126, 128,
+			   130, 132, 134, 136, 138, 140, 145 };
+	u8 vpll_val[] = { 105, 120, 130, 180 };
+	u8 vaux_val[] = { 15, 18, 25, 28 };
+	u8 vcore;
+	u8 vcore_slp;
+	u8 vpll;
+	u8 vaux;
+	bool vaux_en;
+	bool it_warn;
+	int ret;
+	unsigned int val;
+
+	ret = regmap_read(stw481x->map, STW_CONF1, &val);
+	if (ret)
+		return ret;
+	vaux_en = !!(val & STW_CONF1_PDN_VAUX);
+	it_warn = !!(val & STW_CONF1_IT_WARN);
+
+	dev_info(&stw481x->client->dev, "voltages %s\n",
+		(val & STW_CONF1_V_MONITORING) ? "OK" : "LOW");
+	dev_info(&stw481x->client->dev, "MMC level shifter %s\n",
+		(val & STW_CONF1_MMC_LS_STATUS) ? "high impedance" : "ON");
+	dev_info(&stw481x->client->dev, "VMMC: %s\n",
+		(val & STW_CONF1_PDN_VMMC) ? "ON" : "disabled");
+
+	dev_info(&stw481x->client->dev, "STw481x power control registers:\n");
+
+	ret = stw481x_get_pctl_reg(stw481x, STW_PC_VCORE_SEL);
+	if (ret < 0)
+		return ret;
+	vcore = ret & 0x0f;
+
+	ret = stw481x_get_pctl_reg(stw481x, STW_PC_VAUX_SEL);
+	if (ret < 0)
+		return ret;
+	vaux = (ret >> 2) & 3;
+	vpll = (ret >> 4) & 1; /* Save bit 4 */
+
+	ret = stw481x_get_pctl_reg(stw481x, STW_PC_VPLL_SEL);
+	if (ret < 0)
+		return ret;
+	vpll |= (ret >> 1) & 2;
+
+	dev_info(&stw481x->client->dev, "VCORE: %u.%uV %s\n",
+		vcore_val[vcore] / 100, vcore_val[vcore] % 100,
+		(ret & 4) ? "ON" : "OFF");
+
+	dev_info(&stw481x->client->dev, "VPLL:  %u.%uV %s\n",
+		vpll_val[vpll] / 100, vpll_val[vpll] % 100,
+		(ret & 0x10) ? "ON" : "OFF");
+
+	dev_info(&stw481x->client->dev, "VAUX:  %u.%uV %s\n",
+		vaux_val[vaux] / 10, vaux_val[vaux] % 10,
+		vaux_en ? "ON" : "OFF");
+
+	ret = regmap_read(stw481x->map, STW_CONF2, &val);
+	if (ret)
+		return ret;
+
+	dev_info(&stw481x->client->dev, "TWARN: %s threshold, %s\n",
+		it_warn ? "below" : "above",
+		(val & STW_CONF2_MASK_TWARN) ?
+		 "enabled" : "mask through VDDOK");
+	dev_info(&stw481x->client->dev, "VMMC: %s\n",
+		(val & STW_CONF2_VMMC_EXT) ? "internal" : "external");
+	dev_info(&stw481x->client->dev, "IT WAKE UP: %s\n",
+		(val & STW_CONF2_MASK_IT_WAKE_UP) ? "enabled" : "masked");
+	dev_info(&stw481x->client->dev, "GPO1: %s\n",
+		(val & STW_CONF2_GPO1) ? "low" : "high impedance");
+	dev_info(&stw481x->client->dev, "GPO2: %s\n",
+		(val & STW_CONF2_GPO2) ? "low" : "high impedance");
+
+	ret = regmap_read(stw481x->map, STW_VCORE_SLEEP, &val);
+	if (ret)
+		return ret;
+	vcore_slp = val & 0x0f;
+	dev_info(&stw481x->client->dev, "VCORE SLEEP: %u.%uV\n",
+		vcore_val[vcore_slp] / 100, vcore_val[vcore_slp] % 100);
+
+	return 0;
+}
+
+/*
+ * MFD cells - we have one cell which is selected operation
+ * mode, and we always have a GPIO cell.
+ */
+static struct mfd_cell stw481x_cells[] = {
+	{
+		.of_compatible = "st,stw481x-vmmc",
+		.name = "stw481x-vmmc-regulator",
+		.id = -1,
+	},
+};
+
+const struct regmap_config stw481x_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+};
+
+static int stw481x_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct stw481x			*stw481x;
+	int ret;
+	int i;
+
+	stw481x = devm_kzalloc(&client->dev, sizeof(*stw481x), GFP_KERNEL);
+	if (!stw481x)
+		return -ENOMEM;
+
+	i2c_set_clientdata(client, stw481x);
+	stw481x->client = client;
+	stw481x->map = devm_regmap_init_i2c(client, &stw481x_regmap_config);
+
+	ret = stw481x_startup(stw481x);
+	if (ret) {
+		dev_err(&client->dev, "chip initialization failed\n");
+		return ret;
+	}
+
+	/* Set up and register the platform devices. */
+	for (i = 0; i < ARRAY_SIZE(stw481x_cells); i++) {
+		/* One state holder for all drivers, this is simple */
+		stw481x_cells[i].platform_data = stw481x;
+		stw481x_cells[i].pdata_size = sizeof(*stw481x);
+	}
+
+	ret = mfd_add_devices(&client->dev, 0, stw481x_cells,
+			ARRAY_SIZE(stw481x_cells), NULL, 0, NULL);
+	if (ret)
+		return ret;
+
+	dev_info(&client->dev, "initialized STw481x device\n");
+
+	return ret;
+}
+
+static int stw481x_remove(struct i2c_client *client)
+{
+	mfd_remove_devices(&client->dev);
+	return 0;
+}
+
+/*
+ * This ID table is completely unused, as this is a pure
+ * device-tree probed driver, but it has to be here due to
+ * the structure of the I2C core.
+ */
+static const struct i2c_device_id stw481x_id[] = {
+	{ "stw481x", 0 },
+	{ },
+};
+
+static const struct of_device_id stw481x_match[] = {
+	{ .compatible = "st,stw4810", },
+	{ .compatible = "st,stw4811", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, stw481x_match);
+
+static struct i2c_driver stw481x_driver = {
+	.driver = {
+		.name	= "stw481x",
+		.of_match_table = stw481x_match,
+	},
+	.probe		= stw481x_probe,
+	.remove		= stw481x_remove,
+	.id_table	= stw481x_id,
+};
+
+module_i2c_driver(stw481x_driver);
+
+MODULE_AUTHOR("Linus Walleij");
+MODULE_DESCRIPTION("STw481x PMIC driver");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/mfd/stw481x.h b/include/linux/mfd/stw481x.h
new file mode 100644
index 000000000000..eda121556e5d
--- /dev/null
+++ b/include/linux/mfd/stw481x.h
@@ -0,0 +1,56 @@
+/*
+ * Copyright (C) 2011 ST-Ericsson SA
+ * Written on behalf of Linaro for ST-Ericsson
+ *
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+#ifndef MFD_STW481X_H
+#define MFD_STW481X_H
+
+#include <linux/i2c.h>
+#include <linux/regulator/machine.h>
+#include <linux/regmap.h>
+#include <linux/bitops.h>
+
+/* These registers are accessed from more than one driver */
+#define STW_CONF1			0x11U
+#define STW_CONF1_PDN_VMMC		0x01U
+#define STW_CONF1_VMMC_MASK		0x0eU
+#define STW_CONF1_VMMC_1_8V		0x02U
+#define STW_CONF1_VMMC_2_85V		0x04U
+#define STW_CONF1_VMMC_3V		0x06U
+#define STW_CONF1_VMMC_1_85V		0x08U
+#define STW_CONF1_VMMC_2_6V		0x0aU
+#define STW_CONF1_VMMC_2_7V		0x0cU
+#define STW_CONF1_VMMC_3_3V		0x0eU
+#define STW_CONF1_MMC_LS_STATUS		0x10U
+#define STW_PCTL_REG_LO			0x1eU
+#define STW_PCTL_REG_HI			0x1fU
+#define STW_CONF1_V_MONITORING		0x20U
+#define STW_CONF1_IT_WARN		0x40U
+#define STW_CONF1_PDN_VAUX		0x80U
+#define STW_CONF2			0x20U
+#define STW_CONF2_MASK_TWARN		0x01U
+#define STW_CONF2_VMMC_EXT		0x02U
+#define STW_CONF2_MASK_IT_WAKE_UP	0x04U
+#define STW_CONF2_GPO1			0x08U
+#define STW_CONF2_GPO2			0x10U
+#define STW_VCORE_SLEEP			0x21U
+
+/**
+ * struct stw481x - state holder for the Stw481x drivers
+ * @mutex: mutex to serialize I2C accesses
+ * @i2c_client: corresponding I2C client
+ * @regulator: regulator device for regulator children
+ * @map: regmap handle to access device registers
+ */
+struct stw481x {
+	struct mutex		lock;
+	struct i2c_client	*client;
+	struct regulator_dev	*vmmc_regulator;
+	struct regmap		*map;
+};
+
+#endif
-- 
cgit 


From e90f875419967589d75d1a3e2b89c5f2720e794e Mon Sep 17 00:00:00 2001
From: Matthias Kaehlcke <matthias.list@kaehlcke.net>
Date: Mon, 23 Sep 2013 22:43:29 +0200
Subject: mfd: ti_am335x_tscadc: Restore clock divider on resume

The ADC clock divider needs to be restored on resume as the register content
is lost when the ADC is powered down

Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/ti_am335x_tscadc.c       | 10 ++++++----
 include/linux/mfd/ti_am335x_tscadc.h |  1 +
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c
index baaf5a8123bb..a3685d6ef674 100644
--- a/drivers/mfd/ti_am335x_tscadc.c
+++ b/drivers/mfd/ti_am335x_tscadc.c
@@ -95,7 +95,7 @@ static	int ti_tscadc_probe(struct platform_device *pdev)
 	const __be32            *cur;
 	u32			val;
 	int			err, ctrl;
-	int			clk_value, clock_rate;
+	int			clock_rate;
 	int			tsc_wires = 0, adc_channels = 0, total_channels;
 	int			readouts = 0;
 
@@ -196,11 +196,11 @@ static	int ti_tscadc_probe(struct platform_device *pdev)
 	}
 	clock_rate = clk_get_rate(clk);
 	clk_put(clk);
-	clk_value = clock_rate / ADC_CLK;
+	tscadc->clk_div = clock_rate / ADC_CLK;
 
 	/* TSCADC_CLKDIV needs to be configured to the value minus 1 */
-	clk_value = clk_value - 1;
-	tscadc_writel(tscadc, REG_CLKDIV, clk_value);
+	tscadc->clk_div--;
+	tscadc_writel(tscadc, REG_CLKDIV, tscadc->clk_div);
 
 	/* Set the control register bits */
 	ctrl = CNTRLREG_STEPCONFIGWRT |
@@ -303,6 +303,8 @@ static int tscadc_resume(struct device *dev)
 	tscadc_writel(tscadc_dev, REG_CTRL,
 			(restore | CNTRLREG_TSCSSENB));
 
+	tscadc_writel(tscadc_dev, REG_CLKDIV, tscadc_dev->clk_div);
+
 	return 0;
 }
 
diff --git a/include/linux/mfd/ti_am335x_tscadc.h b/include/linux/mfd/ti_am335x_tscadc.h
index 4befdb85dd9c..7b68a061cd60 100644
--- a/include/linux/mfd/ti_am335x_tscadc.h
+++ b/include/linux/mfd/ti_am335x_tscadc.h
@@ -151,6 +151,7 @@ struct ti_tscadc_dev {
 	struct mfd_cell cells[TSCADC_CELLS];
 	u32 reg_se_cache;
 	spinlock_t reg_lock;
+	unsigned int clk_div;
 
 	/* tsc device */
 	struct titsc *tsc;
-- 
cgit 


From 89720264a1f0870e45f583583357ee986e216157 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 25 Sep 2013 15:37:45 +0800
Subject: mfd: ezx-pcap: Drop devm_free_irq of devm_ allocated irq

The devm_request_irq function allocates irq that is released
when a driver detaches. Thus, there is no reason to explicitly
call devm_free_irq in probe or remove functions.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/ezx-pcap.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/mfd/ezx-pcap.c b/drivers/mfd/ezx-pcap.c
index 7245b0c5b794..2ed774e7d342 100644
--- a/drivers/mfd/ezx-pcap.c
+++ b/drivers/mfd/ezx-pcap.c
@@ -394,16 +394,12 @@ static int pcap_add_subdev(struct pcap_chip *pcap,
 static int ezx_pcap_remove(struct spi_device *spi)
 {
 	struct pcap_chip *pcap = spi_get_drvdata(spi);
-	struct pcap_platform_data *pdata = dev_get_platdata(&spi->dev);
-	int i, adc_irq;
+	int i;
 
 	/* remove all registered subdevs */
 	device_for_each_child(&spi->dev, NULL, pcap_remove_subdev);
 
 	/* cleanup ADC */
-	adc_irq = pcap_to_irq(pcap, (pdata->config & PCAP_SECOND_PORT) ?
-				PCAP_IRQ_ADCDONE2 : PCAP_IRQ_ADCDONE);
-	devm_free_irq(&spi->dev, adc_irq, pcap);
 	mutex_lock(&pcap->adc_mutex);
 	for (i = 0; i < PCAP_ADC_MAXQ; i++)
 		kfree(pcap->adc_queue[i]);
@@ -509,8 +505,6 @@ static int ezx_pcap_probe(struct spi_device *spi)
 
 remove_subdevs:
 	device_for_each_child(&spi->dev, NULL, pcap_remove_subdev);
-/* free_adc: */
-	devm_free_irq(&spi->dev, adc_irq, pcap);
 free_irqchip:
 	for (i = pcap->irq_base; i < (pcap->irq_base + PCAP_NIRQS); i++)
 		irq_set_chip_and_handler(i, NULL, NULL);
-- 
cgit 


From fc5ee96fefae8d38602c79a16205d4b1c8e01da5 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 25 Sep 2013 15:37:15 +0800
Subject: mfd: twl6040: Drop devm_free_irq of devm_ allocated irq

The devm_request_irq function allocates irq that is released
when a driver detaches. Thus, there is no reason to explicitly
call devm_free_irq in probe or remove functions.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/twl6040.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c
index daf66942071c..7361dbe96be8 100644
--- a/drivers/mfd/twl6040.c
+++ b/drivers/mfd/twl6040.c
@@ -619,7 +619,7 @@ static int twl6040_probe(struct i2c_client *client,
 					"twl6040_irq_th", twl6040);
 	if (ret) {
 		dev_err(twl6040->dev, "Thermal IRQ request failed: %d\n", ret);
-		goto thirq_err;
+		goto readyirq_err;
 	}
 
 	/* dual-access registers controlled by I2C only */
@@ -659,14 +659,10 @@ static int twl6040_probe(struct i2c_client *client,
 	ret = mfd_add_devices(&client->dev, -1, twl6040->cells, children,
 			      NULL, 0, NULL);
 	if (ret)
-		goto mfd_err;
+		goto readyirq_err;
 
 	return 0;
 
-mfd_err:
-	devm_free_irq(&client->dev, twl6040->irq_th, twl6040);
-thirq_err:
-	devm_free_irq(&client->dev, twl6040->irq_ready, twl6040);
 readyirq_err:
 	regmap_del_irq_chip(twl6040->irq, twl6040->irq_data);
 gpio_err:
@@ -684,8 +680,6 @@ static int twl6040_remove(struct i2c_client *client)
 	if (twl6040->power_count)
 		twl6040_power(twl6040, 0);
 
-	devm_free_irq(&client->dev, twl6040->irq_ready, twl6040);
-	devm_free_irq(&client->dev, twl6040->irq_th, twl6040);
 	regmap_del_irq_chip(twl6040->irq, twl6040->irq_data);
 
 	mfd_remove_devices(&client->dev);
-- 
cgit 


From b264a70eef880aff31652a10ffee9c03e949b69b Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 23 Sep 2013 19:14:31 +0100
Subject: mfd: mc13xxx: Don't require lock for simple register I/O

Since the conversion to regmap there has been no need for device level
locking for I/O as regmap provides locking so remove the locks.

Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/mc13xxx-core.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c
index 2a9b100c4825..dbbf8ee3f592 100644
--- a/drivers/mfd/mc13xxx-core.c
+++ b/drivers/mfd/mc13xxx-core.c
@@ -158,8 +158,6 @@ int mc13xxx_reg_read(struct mc13xxx *mc13xxx, unsigned int offset, u32 *val)
 {
 	int ret;
 
-	BUG_ON(!mutex_is_locked(&mc13xxx->lock));
-
 	if (offset > MC13XXX_NUMREGS)
 		return -EINVAL;
 
@@ -172,8 +170,6 @@ EXPORT_SYMBOL(mc13xxx_reg_read);
 
 int mc13xxx_reg_write(struct mc13xxx *mc13xxx, unsigned int offset, u32 val)
 {
-	BUG_ON(!mutex_is_locked(&mc13xxx->lock));
-
 	dev_vdbg(mc13xxx->dev, "[0x%02x] <- 0x%06x\n", offset, val);
 
 	if (offset > MC13XXX_NUMREGS || val > 0xffffff)
@@ -186,7 +182,6 @@ EXPORT_SYMBOL(mc13xxx_reg_write);
 int mc13xxx_reg_rmw(struct mc13xxx *mc13xxx, unsigned int offset,
 		u32 mask, u32 val)
 {
-	BUG_ON(!mutex_is_locked(&mc13xxx->lock));
 	BUG_ON(val & ~mask);
 	dev_vdbg(mc13xxx->dev, "[0x%02x] <- 0x%06x (mask: 0x%06x)\n",
 			offset, val, mask);
-- 
cgit 


From 0248b4bfe56f0545c051e6230939ca8b95f1b037 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Mon, 23 Sep 2013 19:14:32 +0100
Subject: mfd: mc13xxx: Move SPI erratum workaround into SPI I/O function

Move the workaround for double sending AUDIO_CODEC and AUDIO_DAC writes
into the SPI core, aiding refactoring to eliminate the ASoC custom I/O
functions and avoiding the extra writes for I2C.

Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/mc13xxx-spi.c   | 5 +++++
 include/linux/mfd/mc13xxx.h | 7 +++++++
 sound/soc/codecs/mc13783.c  | 4 ----
 3 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/mfd/mc13xxx-spi.c b/drivers/mfd/mc13xxx-spi.c
index 77189daadf1e..5f14ef6693c2 100644
--- a/drivers/mfd/mc13xxx-spi.c
+++ b/drivers/mfd/mc13xxx-spi.c
@@ -94,10 +94,15 @@ static int mc13xxx_spi_write(void *context, const void *data, size_t count)
 {
 	struct device *dev = context;
 	struct spi_device *spi = to_spi_device(dev);
+	const char *reg = data;
 
 	if (count != 4)
 		return -ENOTSUPP;
 
+	/* include errata fix for spi audio problems */
+	if (*reg == MC13783_AUDIO_CODEC || *reg == MC13783_AUDIO_DAC)
+		spi_write(spi, data, count);
+
 	return spi_write(spi, data, count);
 }
 
diff --git a/include/linux/mfd/mc13xxx.h b/include/linux/mfd/mc13xxx.h
index 41ed59276c00..67c17b5a6f44 100644
--- a/include/linux/mfd/mc13xxx.h
+++ b/include/linux/mfd/mc13xxx.h
@@ -41,6 +41,13 @@ int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx,
 		unsigned int mode, unsigned int channel,
 		u8 ato, bool atox, unsigned int *sample);
 
+#define MC13783_AUDIO_RX0	36
+#define MC13783_AUDIO_RX1	37
+#define MC13783_AUDIO_TX	38
+#define MC13783_SSI_NETWORK	39
+#define MC13783_AUDIO_CODEC	40
+#define MC13783_AUDIO_DAC	41
+
 #define MC13XXX_IRQ_ADCDONE	0
 #define MC13XXX_IRQ_ADCBISDONE	1
 #define MC13XXX_IRQ_TS		2
diff --git a/sound/soc/codecs/mc13783.c b/sound/soc/codecs/mc13783.c
index ea141e1d6f28..4d3c8fd8c5db 100644
--- a/sound/soc/codecs/mc13783.c
+++ b/sound/soc/codecs/mc13783.c
@@ -125,10 +125,6 @@ static int mc13783_write(struct snd_soc_codec *codec,
 
 	ret = mc13xxx_reg_write(priv->mc13xxx, reg, value);
 
-	/* include errata fix for spi audio problems */
-	if (reg == MC13783_AUDIO_CODEC || reg == MC13783_AUDIO_DAC)
-		ret = mc13xxx_reg_write(priv->mc13xxx, reg, value);
-
 	mc13xxx_unlock(priv->mc13xxx);
 
 	return ret;
-- 
cgit 


From 4233a0aafb72985a4692a9e6af5c528811226ac1 Mon Sep 17 00:00:00 2001
From: Andrzej Hajda <a.hajda@samsung.com>
Date: Wed, 21 Aug 2013 18:53:33 +0200
Subject: mfd: max77693: Remove device wakeup from driver

The patch removes wakeup related code from the driver and plaftorm
data - it is already handled by i2c core using I2C_CLIENT_WAKE flag
from struct i2c_board_info. As a result MFD itself do not requires
platform data.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/max77693.c               | 10 ----------
 include/linux/mfd/max77693-private.h |  1 -
 include/linux/mfd/max77693.h         |  2 --
 3 files changed, 13 deletions(-)

diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c
index c04723efc707..27f5da3bc63a 100644
--- a/drivers/mfd/max77693.c
+++ b/drivers/mfd/max77693.c
@@ -110,15 +110,9 @@ static int max77693_i2c_probe(struct i2c_client *i2c,
 			      const struct i2c_device_id *id)
 {
 	struct max77693_dev *max77693;
-	struct max77693_platform_data *pdata = dev_get_platdata(&i2c->dev);
 	u8 reg_data;
 	int ret = 0;
 
-	if (!pdata) {
-		dev_err(&i2c->dev, "No platform data found.\n");
-		return -EINVAL;
-	}
-
 	max77693 = devm_kzalloc(&i2c->dev,
 			sizeof(struct max77693_dev), GFP_KERNEL);
 	if (max77693 == NULL)
@@ -138,8 +132,6 @@ static int max77693_i2c_probe(struct i2c_client *i2c,
 		return ret;
 	}
 
-	max77693->wakeup = pdata->wakeup;
-
 	ret = max77693_read_reg(max77693->regmap, MAX77693_PMIC_REG_PMIC_ID2,
 				&reg_data);
 	if (ret < 0) {
@@ -179,8 +171,6 @@ static int max77693_i2c_probe(struct i2c_client *i2c,
 	if (ret < 0)
 		goto err_mfd;
 
-	device_init_wakeup(max77693->dev, pdata->wakeup);
-
 	return ret;
 
 err_mfd:
diff --git a/include/linux/mfd/max77693-private.h b/include/linux/mfd/max77693-private.h
index 244fb0d51589..3e050b933dd0 100644
--- a/include/linux/mfd/max77693-private.h
+++ b/include/linux/mfd/max77693-private.h
@@ -323,7 +323,6 @@ struct max77693_dev {
 
 	int irq;
 	int irq_gpio;
-	bool wakeup;
 	struct mutex irqlock;
 	int irq_masks_cur[MAX77693_IRQ_GROUP_NR];
 	int irq_masks_cache[MAX77693_IRQ_GROUP_NR];
diff --git a/include/linux/mfd/max77693.h b/include/linux/mfd/max77693.h
index 676f0f388992..3f3dc45f93ee 100644
--- a/include/linux/mfd/max77693.h
+++ b/include/linux/mfd/max77693.h
@@ -64,8 +64,6 @@ struct max77693_muic_platform_data {
 };
 
 struct max77693_platform_data {
-	int wakeup;
-
 	/* regulator data */
 	struct max77693_regulator_data *regulators;
 	int num_regulators;
-- 
cgit 


From 4657185c3c6d928a07185f63f3558d9483e09d7e Mon Sep 17 00:00:00 2001
From: Andrzej Hajda <a.hajda@samsung.com>
Date: Fri, 27 Sep 2013 09:27:46 +0200
Subject: mfd: max77693: Added device tree support

This patch adds only of_match_table. There are no device specific
properties.

Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/max77693.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c
index 27f5da3bc63a..4d81ed285fa2 100644
--- a/drivers/mfd/max77693.c
+++ b/drivers/mfd/max77693.c
@@ -225,11 +225,19 @@ static const struct dev_pm_ops max77693_pm = {
 	.resume = max77693_resume,
 };
 
+#ifdef CONFIG_OF
+static struct of_device_id max77693_dt_match[] = {
+	{ .compatible = "maxim,max77693" },
+	{},
+};
+#endif
+
 static struct i2c_driver max77693_i2c_driver = {
 	.driver = {
 		   .name = "max77693",
 		   .owner = THIS_MODULE,
 		   .pm = &max77693_pm,
+		   .of_match_table = of_match_ptr(max77693_dt_match),
 	},
 	.probe = max77693_i2c_probe,
 	.remove = max77693_i2c_remove,
-- 
cgit 


From ca471660a263f437696bd6459c29395cb176a94a Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Thu, 26 Sep 2013 19:03:48 +0530
Subject: mfd: palmas: Remove call of mfd_remove_devices

The driver only support the device tree and sub modules are populated
through platform, the registration of sub devices through mfd_add_devices
has been removed.

Hence in remove path of the driver, it is not require to call
mfd_remove_devices.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/palmas.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
index 135afabe4ae2..9607d24259d0 100644
--- a/drivers/mfd/palmas.c
+++ b/drivers/mfd/palmas.c
@@ -567,7 +567,6 @@ static int palmas_i2c_remove(struct i2c_client *i2c)
 {
 	struct palmas *palmas = i2c_get_clientdata(i2c);
 
-	mfd_remove_devices(palmas->dev);
 	regmap_del_irq_chip(palmas->irq, palmas->irq_data);
 
 	return 0;
-- 
cgit 


From 2d8edaf028ad2bc71c07c7338bfb0ef7cb46e78d Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Thu, 26 Sep 2013 19:03:49 +0530
Subject: mfd: palmas: Add MODULE_DEVICE_TABLE for of_device table

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/palmas.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
index 9607d24259d0..3b63139fe563 100644
--- a/drivers/mfd/palmas.c
+++ b/drivers/mfd/palmas.c
@@ -368,6 +368,7 @@ static const struct of_device_id of_palmas_match_tbl[] = {
 	},
 	{ },
 };
+MODULE_DEVICE_TABLE(of, of_palmas_match_tbl);
 
 static int palmas_i2c_probe(struct i2c_client *i2c,
 			    const struct i2c_device_id *id)
-- 
cgit 


From 7178347e1c675aefefce09357c988db0a9bf6e96 Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Thu, 26 Sep 2013 19:03:50 +0530
Subject: mfd: palmas: Reset pm_power_off if it is set for the device

If Palams supports the system power controller and pm_power_off
is implemented through the Palmas driver then reset the pm_power_off
in driver remove.

This will avoid the call of Palmas driver after removal of driver.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/palmas.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
index 3b63139fe563..6aab016f4c37 100644
--- a/drivers/mfd/palmas.c
+++ b/drivers/mfd/palmas.c
@@ -570,6 +570,11 @@ static int palmas_i2c_remove(struct i2c_client *i2c)
 
 	regmap_del_irq_chip(palmas->irq, palmas->irq_data);
 
+	if (palmas == palmas_dev) {
+		pm_power_off = NULL;
+		palmas_dev = NULL;
+	}
+
 	return 0;
 }
 
-- 
cgit 


From 5e172d751869ca6756a7276168e11d641dc6b58a Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Thu, 26 Sep 2013 19:03:51 +0530
Subject: mfd: palmas: Fix resource leak of i2c_dummy devices

Palmas device supports multiple i2c device address and the client
for these addressed are created in the driver as i2c_new_dummy().

The new devices are not getting released in error or removal path and
so it is causing resource leak.

Add the unregister of these newly created dummy devices to avoid resource
leaks.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/palmas.c | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
index 6aab016f4c37..ae9147873b4a 100644
--- a/drivers/mfd/palmas.c
+++ b/drivers/mfd/palmas.c
@@ -422,7 +422,7 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
 				dev_err(palmas->dev,
 					"can't attach client %d\n", i);
 				ret = -ENOMEM;
-				goto err;
+				goto err_i2c;
 			}
 			palmas->i2c_clients[i]->dev.of_node = of_node_get(node);
 		}
@@ -433,7 +433,7 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
 			dev_err(palmas->dev,
 				"Failed to allocate regmap %d, err: %d\n",
 				i, ret);
-			goto err;
+			goto err_i2c;
 		}
 	}
 
@@ -452,7 +452,7 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
 			reg);
 	if (ret < 0) {
 		dev_err(palmas->dev, "POLARITY_CTRL updat failed: %d\n", ret);
-		goto err;
+		goto err_i2c;
 	}
 
 	/* Change IRQ into clear on read mode for efficiency */
@@ -466,7 +466,7 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
 			IRQF_ONESHOT | pdata->irq_flags, 0, &palmas_irq_chip,
 			&palmas->irq_data);
 	if (ret < 0)
-		goto err;
+		goto err_i2c;
 
 no_irq:
 	slave = PALMAS_BASE_TO_SLAVE(PALMAS_PU_PD_OD_BASE);
@@ -552,7 +552,6 @@ no_irq:
 		} else if (pdata->pm_off && !pm_power_off) {
 			palmas_dev = palmas;
 			pm_power_off = palmas_power_off;
-			return ret;
 		}
 	}
 
@@ -560,16 +559,26 @@ no_irq:
 
 err_irq:
 	regmap_del_irq_chip(palmas->irq, palmas->irq_data);
-err:
+err_i2c:
+	for (i = 1; i < PALMAS_NUM_CLIENTS; i++) {
+		if (palmas->i2c_clients[i])
+			i2c_unregister_device(palmas->i2c_clients[i]);
+	}
 	return ret;
 }
 
 static int palmas_i2c_remove(struct i2c_client *i2c)
 {
 	struct palmas *palmas = i2c_get_clientdata(i2c);
+	int i;
 
 	regmap_del_irq_chip(palmas->irq, palmas->irq_data);
 
+	for (i = 1; i < PALMAS_NUM_CLIENTS; i++) {
+		if (palmas->i2c_clients[i])
+			i2c_unregister_device(palmas->i2c_clients[i]);
+	}
+
 	if (palmas == palmas_dev) {
 		pm_power_off = NULL;
 		palmas_dev = NULL;
-- 
cgit 


From 22d7dc8aba3bf34fdf324f43718c238075cc7cf7 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Fri, 27 Sep 2013 14:25:55 +0100
Subject: mfd: arizona: Only attempt to parse DT if platform data was not
 passed

If platform data is passed when probing the device then it should take
precedence over Device Tree. This patch saves cycles in the pdata case
and prevents error messages when DT is not passed.

Reported-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/arizona-core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 5ac3aa48473b..a2f5beff99d7 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -607,11 +607,11 @@ int arizona_dev_init(struct arizona *arizona)
 	dev_set_drvdata(arizona->dev, arizona);
 	mutex_init(&arizona->clk_lock);
 
-	arizona_of_get_core_pdata(arizona);
-
 	if (dev_get_platdata(arizona->dev))
 		memcpy(&arizona->pdata, dev_get_platdata(arizona->dev),
 		       sizeof(arizona->pdata));
+	else
+		arizona_of_get_core_pdata(arizona);
 
 	regcache_cache_only(arizona->regmap, true);
 
-- 
cgit 


From 91c739359ac9946a8e74a9640527a3f1034a76a7 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Thu, 3 Oct 2013 16:16:01 +0100
Subject: mfd: arizona: Correct handling of device tree gpio defaults

When setting GPIO defaults we are required to make a distinction
between writing 0x0000 to the registers and leaving them untouched.

When we receive between 0x0000 and 0xFFFF (inclusive) from either
Platform Data or Device Tree, we should write the provided
configuration to the device. Conversely, when we receive >0xFFFF we
should leave the device configuration at its default setting.

This patch fixes a bug and ensures that configuration 0x0000 isn't
mistakenly written when the intention was to keep the default one.

Reported-by: Heather Lomond <heather.lomond@wolfsonmicro.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/arizona-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index a2f5beff99d7..ba808b744238 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -540,7 +540,7 @@ static int arizona_of_get_core_pdata(struct arizona *arizona)
 		for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
 			if (arizona->pdata.gpio_defaults[i] > 0xffff)
 				arizona->pdata.gpio_defaults[i] = 0;
-			if (arizona->pdata.gpio_defaults[i] == 0)
+			else if (arizona->pdata.gpio_defaults[i] == 0)
 				arizona->pdata.gpio_defaults[i] = 0x10000;
 		}
 	} else {
-- 
cgit 


From 2212e680db06bba383893d3df3fbe3f2267bf83d Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Mon, 14 Oct 2013 09:09:00 +0100
Subject: mfd: arizona: Mark missing AOD registers as volatile

This registers ARIZONA_AOD_WKUP_AND_TRIG and ARIZONA_AOD_IRQ_RAW_STATUS
contain interrupt status bits and thus should be volatile. They are
correctly marked on wm5102 but not on wm5110, this patch changes this.
Furthermore volatile registers don't need defaults so remove those.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/wm5102-tables.c | 1 -
 drivers/mfd/wm5110-tables.c | 3 ++-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/wm5102-tables.c b/drivers/mfd/wm5102-tables.c
index 802dd3cb18cf..1e9a4b2102f9 100644
--- a/drivers/mfd/wm5102-tables.c
+++ b/drivers/mfd/wm5102-tables.c
@@ -903,7 +903,6 @@ static const struct reg_default wm5102_reg_default[] = {
 	{ 0x00000D1B, 0xFFFF },   /* R3355  - IRQ2 Status 4 Mask */ 
 	{ 0x00000D1C, 0xFFFF },   /* R3356  - IRQ2 Status 5 Mask */ 
 	{ 0x00000D1F, 0x0000 },   /* R3359  - IRQ2 Control */ 
-	{ 0x00000D50, 0x0000 },   /* R3408  - AOD wkup and trig */
 	{ 0x00000D53, 0xFFFF },   /* R3411  - AOD IRQ Mask IRQ1 */ 
 	{ 0x00000D54, 0xFFFF },   /* R3412  - AOD IRQ Mask IRQ2 */ 
 	{ 0x00000D56, 0x0000 },   /* R3414  - Jack detect debounce */ 
diff --git a/drivers/mfd/wm5110-tables.c b/drivers/mfd/wm5110-tables.c
index f71bd9b3d0a2..c5c116a7b5ff 100644
--- a/drivers/mfd/wm5110-tables.c
+++ b/drivers/mfd/wm5110-tables.c
@@ -1204,7 +1204,6 @@ static const struct reg_default wm5110_reg_default[] = {
 	{ 0x00000D1B, 0xFFFF },    /* R3355  - IRQ2 Status 4 Mask */
 	{ 0x00000D1C, 0xFFFF },    /* R3356  - IRQ2 Status 5 Mask */
 	{ 0x00000D1F, 0x0000 },    /* R3359  - IRQ2 Control */
-	{ 0x00000D50, 0x0000 },    /* R3408  - AOD wkup and trig */
 	{ 0x00000D53, 0xFFFF },    /* R3411  - AOD IRQ Mask IRQ1 */
 	{ 0x00000D54, 0xFFFF },    /* R3412  - AOD IRQ Mask IRQ2 */
 	{ 0x00000D56, 0x0000 },    /* R3414  - Jack detect debounce */
@@ -2363,8 +2362,10 @@ static bool wm5110_volatile_register(struct device *dev, unsigned int reg)
 	case ARIZONA_INTERRUPT_RAW_STATUS_7:
 	case ARIZONA_INTERRUPT_RAW_STATUS_8:
 	case ARIZONA_IRQ_PIN_STATUS:
+	case ARIZONA_AOD_WKUP_AND_TRIG:
 	case ARIZONA_AOD_IRQ1:
 	case ARIZONA_AOD_IRQ2:
+	case ARIZONA_AOD_IRQ_RAW_STATUS:
 	case ARIZONA_FX_CTRL2:
 	case ARIZONA_ASRC_STATUS:
 	case ARIZONA_DSP_STATUS:
-- 
cgit 


From 52c2c6ebfe476016db18293545244f4ed38f2572 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 15 Oct 2013 09:18:46 +0530
Subject: mfd: max8925: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/max8925-i2c.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/max8925-i2c.c b/drivers/mfd/max8925-i2c.c
index de7fb80a6052..176aa26fc787 100644
--- a/drivers/mfd/max8925-i2c.c
+++ b/drivers/mfd/max8925-i2c.c
@@ -238,7 +238,7 @@ static struct i2c_driver max8925_driver = {
 		.name	= "max8925",
 		.owner	= THIS_MODULE,
 		.pm     = &max8925_pm_ops,
-		.of_match_table = of_match_ptr(max8925_dt_ids),
+		.of_match_table = max8925_dt_ids,
 	},
 	.probe		= max8925_probe,
 	.remove		= max8925_remove,
-- 
cgit 


From a351451acd4ce6ccfca6d5439bb1473fd1b1344a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 15 Oct 2013 09:18:47 +0530
Subject: mfd: tps65217: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/tps65217.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/tps65217.c b/drivers/mfd/tps65217.c
index b8f48647661e..b7be0b295575 100644
--- a/drivers/mfd/tps65217.c
+++ b/drivers/mfd/tps65217.c
@@ -245,7 +245,7 @@ static struct i2c_driver tps65217_driver = {
 	.driver		= {
 		.name	= "tps65217",
 		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(tps65217_of_match),
+		.of_match_table = tps65217_of_match,
 	},
 	.id_table	= tps65217_id_table,
 	.probe		= tps65217_probe,
-- 
cgit 


From cd2a55321f4b6548daaf14997a8a77c7513d5bae Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 15 Oct 2013 09:18:48 +0530
Subject: mfd: 88pm860x: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/88pm860x-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/88pm860x-core.c b/drivers/mfd/88pm860x-core.c
index 7ebe9ef1eba6..c9b1f6422941 100644
--- a/drivers/mfd/88pm860x-core.c
+++ b/drivers/mfd/88pm860x-core.c
@@ -1247,7 +1247,7 @@ static struct i2c_driver pm860x_driver = {
 		.name	= "88PM860x",
 		.owner	= THIS_MODULE,
 		.pm     = &pm860x_pm_ops,
-		.of_match_table	= of_match_ptr(pm860x_dt_ids),
+		.of_match_table	= pm860x_dt_ids,
 	},
 	.probe		= pm860x_probe,
 	.remove		= pm860x_remove,
-- 
cgit 


From 131221bc5e317d9d24d7f3922cc798058cf8aadd Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 15 Oct 2013 09:18:49 +0530
Subject: mfd: ti_am335x_tscadc: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/ti_am335x_tscadc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c
index a3685d6ef674..e5a40e8a0904 100644
--- a/drivers/mfd/ti_am335x_tscadc.c
+++ b/drivers/mfd/ti_am335x_tscadc.c
@@ -328,7 +328,7 @@ static struct platform_driver ti_tscadc_driver = {
 		.name   = "ti_am3359-tscadc",
 		.owner	= THIS_MODULE,
 		.pm	= TSCADC_PM_OPS,
-		.of_match_table = of_match_ptr(ti_tscadc_dt_ids),
+		.of_match_table = ti_tscadc_dt_ids,
 	},
 	.probe	= ti_tscadc_probe,
 	.remove	= ti_tscadc_remove,
-- 
cgit 


From 0f54e1e129aa0c0b6fd5763295ef60ea5af13256 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 15 Oct 2013 09:18:50 +0530
Subject: mfd: omap-usb: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/omap-usb-host.c | 2 +-
 drivers/mfd/omap-usb-tll.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index 29ee54d68512..1b65ffe08ff9 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -893,7 +893,7 @@ static struct platform_driver usbhs_omap_driver = {
 		.name		= (char *)usbhs_driver_name,
 		.owner		= THIS_MODULE,
 		.pm		= &usbhsomap_dev_pm_ops,
-		.of_match_table = of_match_ptr(usbhs_omap_dt_ids),
+		.of_match_table = usbhs_omap_dt_ids,
 	},
 	.remove		= usbhs_omap_remove,
 };
diff --git a/drivers/mfd/omap-usb-tll.c b/drivers/mfd/omap-usb-tll.c
index e59ac4cbac96..b8f6401cbc22 100644
--- a/drivers/mfd/omap-usb-tll.c
+++ b/drivers/mfd/omap-usb-tll.c
@@ -320,7 +320,7 @@ static struct platform_driver usbtll_omap_driver = {
 	.driver = {
 		.name		= (char *)usbtll_driver_name,
 		.owner		= THIS_MODULE,
-		.of_match_table = of_match_ptr(usbtll_omap_dt_ids),
+		.of_match_table = usbtll_omap_dt_ids,
 	},
 	.probe		= usbtll_omap_probe,
 	.remove		= usbtll_omap_remove,
-- 
cgit 


From 84195b77364af8c7a25631450d9f2cad6f5daa1f Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 15 Oct 2013 09:18:51 +0530
Subject: mfd: palmas: Remove redundant of_match_ptr

'of_palmas_match_tbl' is always compiled in. Hence of_match_ptr() is
not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/palmas.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/palmas.c b/drivers/mfd/palmas.c
index ae9147873b4a..d280d789e55a 100644
--- a/drivers/mfd/palmas.c
+++ b/drivers/mfd/palmas.c
@@ -403,7 +403,7 @@ static int palmas_i2c_probe(struct i2c_client *i2c,
 	palmas->dev = &i2c->dev;
 	palmas->irq = i2c->irq;
 
-	match = of_match_device(of_match_ptr(of_palmas_match_tbl), &i2c->dev);
+	match = of_match_device(of_palmas_match_tbl, &i2c->dev);
 
 	if (!match)
 		return -ENODATA;
-- 
cgit 


From 0af6f271d0f27334cad2102aa3ac2044a3f3926a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 16 Oct 2013 14:26:48 +0530
Subject: mfd: as3711: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/as3711.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/as3711.c b/drivers/mfd/as3711.c
index abd3ab7c0908..ec684fcedb42 100644
--- a/drivers/mfd/as3711.c
+++ b/drivers/mfd/as3711.c
@@ -17,6 +17,7 @@
 #include <linux/mfd/as3711.h>
 #include <linux/mfd/core.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
 
-- 
cgit 


From 3d6d1d1cd3e9aa4528f82936a01ad46c0e54969b Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 16 Oct 2013 14:26:56 +0530
Subject: mfd: arizona: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/arizona-i2c.c | 1 +
 drivers/mfd/arizona-spi.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/mfd/arizona-i2c.c b/drivers/mfd/arizona-i2c.c
index 51dbabf7c021..beccb790c9ba 100644
--- a/drivers/mfd/arizona-i2c.c
+++ b/drivers/mfd/arizona-i2c.c
@@ -17,6 +17,7 @@
 #include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
+#include <linux/of.h>
 
 #include <linux/mfd/arizona/core.h>
 
diff --git a/drivers/mfd/arizona-spi.c b/drivers/mfd/arizona-spi.c
index 47be7b35b5c5..1ca554b18bef 100644
--- a/drivers/mfd/arizona-spi.c
+++ b/drivers/mfd/arizona-spi.c
@@ -17,6 +17,7 @@
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
 #include <linux/spi/spi.h>
+#include <linux/of.h>
 
 #include <linux/mfd/arizona/core.h>
 
-- 
cgit 


From 1fead3f399ce7b508b05d0cc9d06d534ffac952c Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 16 Oct 2013 14:26:55 +0530
Subject: mfd: tps65910: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/tps65910.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c
index d79277204835..72f2e789ab83 100644
--- a/drivers/mfd/tps65910.c
+++ b/drivers/mfd/tps65910.c
@@ -25,6 +25,7 @@
 #include <linux/mfd/core.h>
 #include <linux/regmap.h>
 #include <linux/mfd/tps65910.h>
+#include <linux/of.h>
 #include <linux/of_device.h>
 
 static struct resource rtc_resources[] = {
-- 
cgit 


From 06bf3c2f11d380d8c5c322f5c45cd189af6f733e Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 16 Oct 2013 14:26:54 +0530
Subject: mfd: tps6586x: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/tps6586x.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/tps6586x.c b/drivers/mfd/tps6586x.c
index 68906b17ee52..ee61fd7c198d 100644
--- a/drivers/mfd/tps6586x.c
+++ b/drivers/mfd/tps6586x.c
@@ -26,6 +26,7 @@
 #include <linux/i2c.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
+#include <linux/of.h>
 
 #include <linux/mfd/core.h>
 #include <linux/mfd/tps6586x.h>
-- 
cgit 


From 5c8c87940204f1839a8730b228fc5ed1e86d324c Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 16 Oct 2013 14:26:53 +0530
Subject: mfd: tps6507x: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/tps6507x.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/tps6507x.c b/drivers/mfd/tps6507x.c
index 5ad4b772b097..a081b925d10b 100644
--- a/drivers/mfd/tps6507x.c
+++ b/drivers/mfd/tps6507x.c
@@ -19,6 +19,7 @@
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/i2c.h>
+#include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/mfd/core.h>
 #include <linux/mfd/tps6507x.h>
-- 
cgit 


From 1c5a099b29c26c0a7dd525d6c4ed0daa5206b956 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 16 Oct 2013 14:26:52 +0530
Subject: mfd: sec-core: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/sec-core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/sec-core.c b/drivers/mfd/sec-core.c
index f530e4b73f19..34c18fb8c089 100644
--- a/drivers/mfd/sec-core.c
+++ b/drivers/mfd/sec-core.c
@@ -17,6 +17,7 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/i2c.h>
+#include <linux/of.h>
 #include <linux/of_irq.h>
 #include <linux/interrupt.h>
 #include <linux/pm_runtime.h>
-- 
cgit 


From fb7d4a53f59966a76447cdacdc6b2a71675c1d91 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 16 Oct 2013 14:26:51 +0530
Subject: mfd: max8997: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/max8997.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/max8997.c b/drivers/mfd/max8997.c
index cee098c0dae3..791aea3e96ce 100644
--- a/drivers/mfd/max8997.c
+++ b/drivers/mfd/max8997.c
@@ -24,6 +24,7 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/i2c.h>
+#include <linux/of.h>
 #include <linux/of_irq.h>
 #include <linux/interrupt.h>
 #include <linux/pm_runtime.h>
-- 
cgit 


From e4081da476e5e741c4e469a0f8470e9f4169794e Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 16 Oct 2013 14:26:50 +0530
Subject: mfd: max8907: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/max8907.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/max8907.c b/drivers/mfd/max8907.c
index e9b1c93a3ade..3bbfedc07f41 100644
--- a/drivers/mfd/max8907.c
+++ b/drivers/mfd/max8907.c
@@ -17,6 +17,7 @@
 #include <linux/mfd/core.h>
 #include <linux/mfd/max8907.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
-- 
cgit 


From 2a048d3b787e154e06a21f5f0951a319b6ada4fb Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 16 Oct 2013 14:26:49 +0530
Subject: mfd: max77686: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/max77686.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/max77686.c b/drivers/mfd/max77686.c
index 522be67b2e68..34520cbe8afb 100644
--- a/drivers/mfd/max77686.c
+++ b/drivers/mfd/max77686.c
@@ -31,6 +31,7 @@
 #include <linux/mfd/max77686.h>
 #include <linux/mfd/max77686-private.h>
 #include <linux/err.h>
+#include <linux/of.h>
 
 #define I2C_ADDR_RTC	(0x0C >> 1)
 
-- 
cgit 


From b0e5992612a1079ddcc1810b786ab8ca438cddae Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Tue, 15 Oct 2013 15:30:34 +0300
Subject: mfd: omap-usb: prepare/unprepare clock while enable/disable

This should fix the following warning at boot on OMAP5 uEVM
[    8.783155] WARNING: CPU: 0 PID: 1 at drivers/clk/clk.c:883 __clk_enable+0x94/0xa4()

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/omap-usb-host.c | 16 ++++++++--------
 drivers/mfd/omap-usb-tll.c  |  4 ++--
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index 1b65ffe08ff9..142650fdc058 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -328,13 +328,13 @@ static int usbhs_runtime_resume(struct device *dev)
 	omap_tll_enable(pdata);
 
 	if (!IS_ERR(omap->ehci_logic_fck))
-		clk_enable(omap->ehci_logic_fck);
+		clk_prepare_enable(omap->ehci_logic_fck);
 
 	for (i = 0; i < omap->nports; i++) {
 		switch (pdata->port_mode[i]) {
 		case OMAP_EHCI_PORT_MODE_HSIC:
 			if (!IS_ERR(omap->hsic60m_clk[i])) {
-				r = clk_enable(omap->hsic60m_clk[i]);
+				r = clk_prepare_enable(omap->hsic60m_clk[i]);
 				if (r) {
 					dev_err(dev,
 					 "Can't enable port %d hsic60m clk:%d\n",
@@ -343,7 +343,7 @@ static int usbhs_runtime_resume(struct device *dev)
 			}
 
 			if (!IS_ERR(omap->hsic480m_clk[i])) {
-				r = clk_enable(omap->hsic480m_clk[i]);
+				r = clk_prepare_enable(omap->hsic480m_clk[i]);
 				if (r) {
 					dev_err(dev,
 					 "Can't enable port %d hsic480m clk:%d\n",
@@ -354,7 +354,7 @@ static int usbhs_runtime_resume(struct device *dev)
 
 		case OMAP_EHCI_PORT_MODE_TLL:
 			if (!IS_ERR(omap->utmi_clk[i])) {
-				r = clk_enable(omap->utmi_clk[i]);
+				r = clk_prepare_enable(omap->utmi_clk[i]);
 				if (r) {
 					dev_err(dev,
 					 "Can't enable port %d clk : %d\n",
@@ -382,15 +382,15 @@ static int usbhs_runtime_suspend(struct device *dev)
 		switch (pdata->port_mode[i]) {
 		case OMAP_EHCI_PORT_MODE_HSIC:
 			if (!IS_ERR(omap->hsic60m_clk[i]))
-				clk_disable(omap->hsic60m_clk[i]);
+				clk_disable_unprepare(omap->hsic60m_clk[i]);
 
 			if (!IS_ERR(omap->hsic480m_clk[i]))
-				clk_disable(omap->hsic480m_clk[i]);
+				clk_disable_unprepare(omap->hsic480m_clk[i]);
 		/* Fall through as utmi_clks were used in HSIC mode */
 
 		case OMAP_EHCI_PORT_MODE_TLL:
 			if (!IS_ERR(omap->utmi_clk[i]))
-				clk_disable(omap->utmi_clk[i]);
+				clk_disable_unprepare(omap->utmi_clk[i]);
 			break;
 		default:
 			break;
@@ -398,7 +398,7 @@ static int usbhs_runtime_suspend(struct device *dev)
 	}
 
 	if (!IS_ERR(omap->ehci_logic_fck))
-		clk_disable(omap->ehci_logic_fck);
+		clk_disable_unprepare(omap->ehci_logic_fck);
 
 	omap_tll_disable(pdata);
 
diff --git a/drivers/mfd/omap-usb-tll.c b/drivers/mfd/omap-usb-tll.c
index b8f6401cbc22..0d946ae14453 100644
--- a/drivers/mfd/omap-usb-tll.c
+++ b/drivers/mfd/omap-usb-tll.c
@@ -429,7 +429,7 @@ int omap_tll_enable(struct usbhs_omap_platform_data *pdata)
 			if (IS_ERR(tll->ch_clk[i]))
 				continue;
 
-			r = clk_enable(tll->ch_clk[i]);
+			r = clk_prepare_enable(tll->ch_clk[i]);
 			if (r) {
 				dev_err(tll_dev,
 				 "Error enabling ch %d clock: %d\n", i, r);
@@ -460,7 +460,7 @@ int omap_tll_disable(struct usbhs_omap_platform_data *pdata)
 	for (i = 0; i < tll->nch; i++) {
 		if (omap_usb_mode_needs_tll(pdata->port_mode[i])) {
 			if (!IS_ERR(tll->ch_clk[i]))
-				clk_disable(tll->ch_clk[i]);
+				clk_disable_unprepare(tll->ch_clk[i]);
 		}
 	}
 
-- 
cgit 


From e64c1eb47352d62f5bb06284bae72261d934faa8 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 18 Oct 2013 11:51:45 +0200
Subject: mfd: tc3589x: Detect the precise version

Instead of detecting the "tc3589x" and hard-coding the number of
GPIO pins to 24, encode all the possible subtypes and set the
number of GPIO pins from the type.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/tc3589x.c | 37 +++++++++++++++++++++++++++++++++++--
 1 file changed, 35 insertions(+), 2 deletions(-)

diff --git a/drivers/mfd/tc3589x.c b/drivers/mfd/tc3589x.c
index 70f4909fee13..87ea51dc6234 100644
--- a/drivers/mfd/tc3589x.c
+++ b/drivers/mfd/tc3589x.c
@@ -16,6 +16,19 @@
 #include <linux/mfd/core.h>
 #include <linux/mfd/tc3589x.h>
 
+/**
+ * enum tc3589x_version - indicates the TC3589x version
+ */
+enum tc3589x_version {
+	TC3589X_TC35890,
+	TC3589X_TC35892,
+	TC3589X_TC35893,
+	TC3589X_TC35894,
+	TC3589X_TC35895,
+	TC3589X_TC35896,
+	TC3589X_UNKNOWN,
+};
+
 #define TC3589x_CLKMODE_MODCTL_SLEEP		0x0
 #define TC3589x_CLKMODE_MODCTL_OPERATION	(1 << 0)
 
@@ -361,7 +374,21 @@ static int tc3589x_probe(struct i2c_client *i2c,
 	tc3589x->i2c = i2c;
 	tc3589x->pdata = pdata;
 	tc3589x->irq_base = pdata->irq_base;
-	tc3589x->num_gpio = id->driver_data;
+
+	switch (id->driver_data) {
+	case TC3589X_TC35893:
+	case TC3589X_TC35895:
+	case TC3589X_TC35896:
+		tc3589x->num_gpio = 20;
+		break;
+	case TC3589X_TC35890:
+	case TC3589X_TC35892:
+	case TC3589X_TC35894:
+	case TC3589X_UNKNOWN:
+	default:
+		tc3589x->num_gpio = 24;
+		break;
+	}
 
 	i2c_set_clientdata(i2c, tc3589x);
 
@@ -432,7 +459,13 @@ static int tc3589x_resume(struct device *dev)
 static SIMPLE_DEV_PM_OPS(tc3589x_dev_pm_ops, tc3589x_suspend, tc3589x_resume);
 
 static const struct i2c_device_id tc3589x_id[] = {
-	{ "tc3589x", 24 },
+	{ "tc35890", TC3589X_TC35890 },
+	{ "tc35892", TC3589X_TC35892 },
+	{ "tc35893", TC3589X_TC35893 },
+	{ "tc35894", TC3589X_TC35894 },
+	{ "tc35895", TC3589X_TC35895 },
+	{ "tc35896", TC3589X_TC35896 },
+	{ "tc3589x", TC3589X_UNKNOWN },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, tc3589x_id);
-- 
cgit 


From 71c7f93ea0036eddb86ccd268945555419bb1cbb Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 18 Oct 2013 16:11:57 +0530
Subject: mfd: max77693: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/max77693.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c
index 4d81ed285fa2..9f92463f4f7e 100644
--- a/drivers/mfd/max77693.c
+++ b/drivers/mfd/max77693.c
@@ -28,6 +28,7 @@
 #include <linux/i2c.h>
 #include <linux/err.h>
 #include <linux/interrupt.h>
+#include <linux/of.h>
 #include <linux/pm_runtime.h>
 #include <linux/mutex.h>
 #include <linux/mfd/core.h>
-- 
cgit 


From d460a6f3d67a8558fb58299518077888b7dbf5f3 Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Tue, 22 Oct 2013 13:08:46 +0530
Subject: mfd: Add support for ams AS3722 PMIC

The ams AS3722 is a compact system PMU suitable for mobile phones,
tablets etc. It has 4 DC/DC step-down regulators, 3 DC/DC step-down
controller, 11 LDOs, RTC, automatic battery, temperature and
over-current monitoring, 8 GPIOs, ADC and a watchdog.

Add MFD core driver for the AS3722 to support core functionality.

Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Florian Lobmaier <florian.lobmaier@ams.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 Documentation/devicetree/bindings/mfd/as3722.txt | 194 ++++++++++
 drivers/mfd/Kconfig                              |  12 +
 drivers/mfd/Makefile                             |   1 +
 drivers/mfd/as3722.c                             | 449 +++++++++++++++++++++++
 include/dt-bindings/mfd/as3722.h                 |  52 +++
 include/linux/mfd/as3722.h                       | 423 +++++++++++++++++++++
 6 files changed, 1131 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/as3722.txt
 create mode 100644 drivers/mfd/as3722.c
 create mode 100644 include/dt-bindings/mfd/as3722.h
 create mode 100644 include/linux/mfd/as3722.h

diff --git a/Documentation/devicetree/bindings/mfd/as3722.txt b/Documentation/devicetree/bindings/mfd/as3722.txt
new file mode 100644
index 000000000000..fc2191ecfd6b
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/as3722.txt
@@ -0,0 +1,194 @@
+* ams AS3722 Power management IC.
+
+Required properties:
+-------------------
+- compatible: Must be "ams,as3722".
+- reg: I2C device address.
+- interrupt-controller: AS3722 has internal interrupt controller which takes the
+  interrupt request from internal sub-blocks like RTC, regulators, GPIOs as well
+  as external input.
+- #interrupt-cells: Should be set to 2 for IRQ number and flags.
+  The first cell is the IRQ number. IRQ numbers for different interrupt source
+  of AS3722 are defined at dt-bindings/mfd/as3722.h
+  The second cell is the flags, encoded as the trigger masks from binding document
+	interrupts.txt, using dt-bindings/irq.
+
+Optional submodule and their properties:
+=======================================
+
+Pinmux and GPIO:
+===============
+Device has 8 GPIO pins which can be configured as GPIO as well as the special IO
+functions.
+
+Please refer to pinctrl-bindings.txt in this directory for details of the
+common pinctrl bindings used by client devices, including the meaning of the
+phrase "pin configuration node".
+
+Following are properties which is needed if GPIO and pinmux functionality
+is required:
+    Required properties:
+    -------------------
+	- gpio-controller: Marks the device node as a GPIO controller.
+	- #gpio-cells: Number of GPIO cells. Refer to binding document
+			gpio/gpio.txt
+
+    Optional properties:
+    --------------------
+	Following properties are require if pin control setting is required
+	at boot.
+	- pinctrl-names: A pinctrl state named "default" be defined, using the
+		bindings in pinctrl/pinctrl-binding.txt.
+	- pinctrl[0...n]: Properties to contain the phandle that refer to
+		different nodes of pin control settings. These nodes represents
+		the pin control setting of state 0 to state n. Each of these
+		nodes contains different subnodes to represents some desired
+		configuration for a list of pins. This configuration can
+		include the mux function to select on those pin(s), and
+		various pin configuration parameters, such as pull-up,
+		open drain.
+
+		Each subnode have following properties:
+		Required properties:
+		    - pins: List of pins. Valid values of pins properties are:
+				gpio0, gpio1, gpio2, gpio3, gpio4, gpio5,
+				gpio6, gpio7
+
+		Optional properties:
+			function, bias-disable, bias-pull-up, bias-pull-down,
+			bias-high-impedance, drive-open-drain.
+
+			Valid values for function properties are:
+				gpio, interrupt-out, gpio-in-interrupt,
+				vsup-vbat-low-undebounce-out,
+				vsup-vbat-low-debounce-out,
+				voltage-in-standby, oc-pg-sd0, oc-pg-sd6,
+				powergood-out, pwm-in, pwm-out, clk32k-out,
+				watchdog-in, soft-reset-in
+
+Regulators:
+===========
+Device has multiple DCDC and LDOs. The node "regulators" is require if regulator
+functionality is needed.
+
+Following are properties of regulator subnode.
+
+    Optional properties:
+    -------------------
+	The input supply of regulators are the optional properties on the
+	regulator node. The input supply of these regulators are provided
+	through following properties:
+		vsup-sd2-supply: Input supply for SD2.
+		vsup-sd3-supply: Input supply for SD3.
+		vsup-sd4-supply: Input supply for SD4.
+		vsup-sd5-supply: Input supply for SD5.
+		vin-ldo0-supply: Input supply for LDO0.
+		vin-ldo1-6-supply: Input supply for LDO1 and LDO6.
+		vin-ldo2-5-7-supply: Input supply for LDO2, LDO5 and LDO7.
+		vin-ldo3-4-supply: Input supply for LDO3 and LDO4.
+		vin-ldo9-10-supply: Input supply for LDO9 and LDO10.
+		vin-ldo11-supply: Input supply for LDO11.
+
+    Optional sub nodes for regulators:
+    ---------------------------------
+	The subnodes name is the name of regulator and it must be one of:
+	sd[0-6], ldo[0-7], ldo[9-11]
+
+	Each sub-node should contain the constraints and initialization
+	information for that regulator. See regulator.txt for a description
+	of standard properties for these sub-nodes.
+	Additional optional custom properties  are listed below.
+		ams,ext-control: External control of the rail. The option of
+			this properties will tell which external input is
+			controlling this rail. Valid values are 0, 1, 2 ad 3.
+			0: There is no external control of this rail.
+			1: Rail is controlled by ENABLE1 input pin.
+			2: Rail is controlled by ENABLE2 input pin.
+			3: Rail is controlled by ENABLE3 input pin.
+			Missing this property on DT will be assume as no
+			external control. The external control pin macros
+			are defined @dt-bindings/mfd/as3722.h
+
+		ams,enable-tracking: Enable tracking with SD1, only supported
+			by LDO3.
+
+Example:
+--------
+#include <dt-bindings/mfd/as3722.h>
+...
+ams3722 {
+	compatible = "ams,as3722";
+	reg = <0x48>;
+
+	interrupt-parent = <&intc>;
+	interrupt-controller;
+	#interrupt-cells = <2>;
+
+	gpio-controller;
+	#gpio-cells = <2>;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&as3722_default>;
+
+	as3722_default: pinmux {
+			gpio0 {
+				pins = "gpio0";
+				function = "gpio";
+				bias-pull-down;
+			};
+
+			gpio1_2_4_7 {
+				pins = "gpio1", "gpio2", "gpio4", "gpio7";
+				function = "gpio";
+				bias-pull-up;
+			};
+
+			gpio5 {
+				pins = "gpio5";
+				function = "clk32k_out";
+			};
+	}
+
+	regulators {
+			vsup-sd2-supply = <...>;
+			...
+
+			sd0 {
+				regulator-name = "vdd_cpu";
+				regulator-min-microvolt = <700000>;
+				regulator-max-microvolt = <1400000>;
+				regulator-always-on;
+				ams,ext-control = <2>;
+			};
+
+			sd1 {
+				regulator-name = "vdd_core";
+				regulator-min-microvolt = <700000>;
+				regulator-max-microvolt = <1400000>;
+				regulator-always-on;
+				ams,ext-control = <1>;
+			};
+
+			sd2 {
+				regulator-name = "vddio_ddr";
+				regulator-min-microvolt = <1350000>;
+				regulator-max-microvolt = <1350000>;
+				regulator-always-on;
+			};
+
+			sd4 {
+				regulator-name = "avdd-hdmi-pex";
+				regulator-min-microvolt = <1050000>;
+				regulator-max-microvolt = <1050000>;
+				regulator-always-on;
+			};
+
+			sd5 {
+				regulator-name = "vdd-1v8";
+				regulator-min-microvolt = <1800000>;
+				regulator-max-microvolt = <1800000>;
+				regulator-always-on;
+			};
+			....
+	};
+};
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index d078fe4a82ef..b7c74a73d371 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -27,6 +27,18 @@ config MFD_AS3711
 	help
 	  Support for the AS3711 PMIC from AMS
 
+config MFD_AS3722
+	bool "ams AS3722 Power Management IC"
+	select MFD_CORE
+	select REGMAP_I2C
+	select REGMAP_IRQ
+	depends on I2C && OF
+	help
+	  The ams AS3722 is a compact system PMU suitable for mobile phones,
+	  tablets etc. It has 4 DC/DC step-down regulators, 3 DC/DC step-down
+	  controllers, 11 LDOs, RTC, automatic battery, temperature and
+	  over current monitoring, GPIOs, ADC and a watchdog.
+
 config PMIC_ADP5520
 	bool "Analog Devices ADP5520/01 MFD PMIC Core Support"
 	depends on I2C=y
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index 656cec90a1e5..8a28dc90fe78 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -162,4 +162,5 @@ obj-$(CONFIG_MFD_LM3533)	+= lm3533-core.o lm3533-ctrlbank.o
 obj-$(CONFIG_VEXPRESS_CONFIG)	+= vexpress-config.o vexpress-sysreg.o
 obj-$(CONFIG_MFD_RETU)		+= retu-mfd.o
 obj-$(CONFIG_MFD_AS3711)	+= as3711.o
+obj-$(CONFIG_MFD_AS3722)	+= as3722.o
 obj-$(CONFIG_MFD_STW481X)	+= stw481x.o
diff --git a/drivers/mfd/as3722.c b/drivers/mfd/as3722.c
new file mode 100644
index 000000000000..cd8ee593cfa8
--- /dev/null
+++ b/drivers/mfd/as3722.c
@@ -0,0 +1,449 @@
+/*
+ * Core driver for ams AS3722 PMICs
+ *
+ * Copyright (C) 2013 AMS AG
+ * Copyright (c) 2013, NVIDIA Corporation. All rights reserved.
+ *
+ * Author: Florian Lobmaier <florian.lobmaier@ams.com>
+ * Author: Laxman Dewangan <ldewangan@nvidia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mfd/core.h>
+#include <linux/mfd/as3722.h>
+#include <linux/of.h>
+#include <linux/regmap.h>
+#include <linux/slab.h>
+
+#define AS3722_DEVICE_ID	0x0C
+
+static const struct resource as3722_rtc_resource[] = {
+	{
+		.name = "as3722-rtc-alarm",
+		.start = AS3722_IRQ_RTC_ALARM,
+		.end = AS3722_IRQ_RTC_ALARM,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static const struct resource as3722_adc_resource[] = {
+	{
+		.name = "as3722-adc",
+		.start = AS3722_IRQ_ADC,
+		.end = AS3722_IRQ_ADC,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct mfd_cell as3722_devs[] = {
+	{
+		.name = "as3722-pinctrl",
+	},
+	{
+		.name = "as3722-regulator",
+	},
+	{
+		.name = "as3722-rtc",
+		.num_resources = ARRAY_SIZE(as3722_rtc_resource),
+		.resources = as3722_rtc_resource,
+	},
+	{
+		.name = "as3722-adc",
+		.num_resources = ARRAY_SIZE(as3722_adc_resource),
+		.resources = as3722_adc_resource,
+	},
+	{
+		.name = "as3722-power-off",
+	},
+};
+
+static const struct regmap_irq as3722_irqs[] = {
+	/* INT1 IRQs */
+	[AS3722_IRQ_LID] = {
+		.mask = AS3722_INTERRUPT_MASK1_LID,
+	},
+	[AS3722_IRQ_ACOK] = {
+		.mask = AS3722_INTERRUPT_MASK1_ACOK,
+	},
+	[AS3722_IRQ_ENABLE1] = {
+		.mask = AS3722_INTERRUPT_MASK1_ENABLE1,
+	},
+	[AS3722_IRQ_OCCUR_ALARM_SD0] = {
+		.mask = AS3722_INTERRUPT_MASK1_OCURR_ALARM_SD0,
+	},
+	[AS3722_IRQ_ONKEY_LONG_PRESS] = {
+		.mask = AS3722_INTERRUPT_MASK1_ONKEY_LONG,
+	},
+	[AS3722_IRQ_ONKEY] = {
+		.mask = AS3722_INTERRUPT_MASK1_ONKEY,
+	},
+	[AS3722_IRQ_OVTMP] = {
+		.mask = AS3722_INTERRUPT_MASK1_OVTMP,
+	},
+	[AS3722_IRQ_LOWBAT] = {
+		.mask = AS3722_INTERRUPT_MASK1_LOWBAT,
+	},
+
+	/* INT2 IRQs */
+	[AS3722_IRQ_SD0_LV] = {
+		.mask = AS3722_INTERRUPT_MASK2_SD0_LV,
+		.reg_offset = 1,
+	},
+	[AS3722_IRQ_SD1_LV] = {
+		.mask = AS3722_INTERRUPT_MASK2_SD1_LV,
+		.reg_offset = 1,
+	},
+	[AS3722_IRQ_SD2_LV] = {
+		.mask = AS3722_INTERRUPT_MASK2_SD2345_LV,
+		.reg_offset = 1,
+	},
+	[AS3722_IRQ_PWM1_OV_PROT] = {
+		.mask = AS3722_INTERRUPT_MASK2_PWM1_OV_PROT,
+		.reg_offset = 1,
+	},
+	[AS3722_IRQ_PWM2_OV_PROT] = {
+		.mask = AS3722_INTERRUPT_MASK2_PWM2_OV_PROT,
+		.reg_offset = 1,
+	},
+	[AS3722_IRQ_ENABLE2] = {
+		.mask = AS3722_INTERRUPT_MASK2_ENABLE2,
+		.reg_offset = 1,
+	},
+	[AS3722_IRQ_SD6_LV] = {
+		.mask = AS3722_INTERRUPT_MASK2_SD6_LV,
+		.reg_offset = 1,
+	},
+	[AS3722_IRQ_RTC_REP] = {
+		.mask = AS3722_INTERRUPT_MASK2_RTC_REP,
+		.reg_offset = 1,
+	},
+
+	/* INT3 IRQs */
+	[AS3722_IRQ_RTC_ALARM] = {
+		.mask = AS3722_INTERRUPT_MASK3_RTC_ALARM,
+		.reg_offset = 2,
+	},
+	[AS3722_IRQ_GPIO1] = {
+		.mask = AS3722_INTERRUPT_MASK3_GPIO1,
+		.reg_offset = 2,
+	},
+	[AS3722_IRQ_GPIO2] = {
+		.mask = AS3722_INTERRUPT_MASK3_GPIO2,
+		.reg_offset = 2,
+	},
+	[AS3722_IRQ_GPIO3] = {
+		.mask = AS3722_INTERRUPT_MASK3_GPIO3,
+		.reg_offset = 2,
+	},
+	[AS3722_IRQ_GPIO4] = {
+		.mask = AS3722_INTERRUPT_MASK3_GPIO4,
+		.reg_offset = 2,
+	},
+	[AS3722_IRQ_GPIO5] = {
+		.mask = AS3722_INTERRUPT_MASK3_GPIO5,
+		.reg_offset = 2,
+	},
+	[AS3722_IRQ_WATCHDOG] = {
+		.mask = AS3722_INTERRUPT_MASK3_WATCHDOG,
+		.reg_offset = 2,
+	},
+	[AS3722_IRQ_ENABLE3] = {
+		.mask = AS3722_INTERRUPT_MASK3_ENABLE3,
+		.reg_offset = 2,
+	},
+
+	/* INT4 IRQs */
+	[AS3722_IRQ_TEMP_SD0_SHUTDOWN] = {
+		.mask = AS3722_INTERRUPT_MASK4_TEMP_SD0_SHUTDOWN,
+		.reg_offset = 3,
+	},
+	[AS3722_IRQ_TEMP_SD1_SHUTDOWN] = {
+		.mask = AS3722_INTERRUPT_MASK4_TEMP_SD1_SHUTDOWN,
+		.reg_offset = 3,
+	},
+	[AS3722_IRQ_TEMP_SD2_SHUTDOWN] = {
+		.mask = AS3722_INTERRUPT_MASK4_TEMP_SD6_SHUTDOWN,
+		.reg_offset = 3,
+	},
+	[AS3722_IRQ_TEMP_SD0_ALARM] = {
+		.mask = AS3722_INTERRUPT_MASK4_TEMP_SD0_ALARM,
+		.reg_offset = 3,
+	},
+	[AS3722_IRQ_TEMP_SD1_ALARM] = {
+		.mask = AS3722_INTERRUPT_MASK4_TEMP_SD1_ALARM,
+		.reg_offset = 3,
+	},
+	[AS3722_IRQ_TEMP_SD6_ALARM] = {
+		.mask = AS3722_INTERRUPT_MASK4_TEMP_SD6_ALARM,
+		.reg_offset = 3,
+	},
+	[AS3722_IRQ_OCCUR_ALARM_SD6] = {
+		.mask = AS3722_INTERRUPT_MASK4_OCCUR_ALARM_SD6,
+		.reg_offset = 3,
+	},
+	[AS3722_IRQ_ADC] = {
+		.mask = AS3722_INTERRUPT_MASK4_ADC,
+		.reg_offset = 3,
+	},
+};
+
+static const struct regmap_irq_chip as3722_irq_chip = {
+	.name = "as3722",
+	.irqs = as3722_irqs,
+	.num_irqs = ARRAY_SIZE(as3722_irqs),
+	.num_regs = 4,
+	.status_base = AS3722_INTERRUPT_STATUS1_REG,
+	.mask_base = AS3722_INTERRUPT_MASK1_REG,
+};
+
+static int as3722_check_device_id(struct as3722 *as3722)
+{
+	u32 val;
+	int ret;
+
+	/* Check that this is actually a AS3722 */
+	ret = as3722_read(as3722, AS3722_ASIC_ID1_REG, &val);
+	if (ret < 0) {
+		dev_err(as3722->dev, "ASIC_ID1 read failed: %d\n", ret);
+		return ret;
+	}
+
+	if (val != AS3722_DEVICE_ID) {
+		dev_err(as3722->dev, "Device is not AS3722, ID is 0x%x\n", val);
+		return -ENODEV;
+	}
+
+	ret = as3722_read(as3722, AS3722_ASIC_ID2_REG, &val);
+	if (ret < 0) {
+		dev_err(as3722->dev, "ASIC_ID2 read failed: %d\n", ret);
+		return ret;
+	}
+
+	dev_info(as3722->dev, "AS3722 with revision 0x%x found\n", val);
+	return 0;
+}
+
+static int as3722_configure_pullups(struct as3722 *as3722)
+{
+	int ret;
+	u32 val = 0;
+
+	if (as3722->en_intern_int_pullup)
+		val |= AS3722_INT_PULL_UP;
+	if (as3722->en_intern_i2c_pullup)
+		val |= AS3722_I2C_PULL_UP;
+
+	ret = as3722_update_bits(as3722, AS3722_IOVOLTAGE_REG,
+			AS3722_INT_PULL_UP | AS3722_I2C_PULL_UP, val);
+	if (ret < 0)
+		dev_err(as3722->dev, "IOVOLTAGE_REG update failed: %d\n", ret);
+	return ret;
+}
+
+static const struct regmap_range as3722_readable_ranges[] = {
+	regmap_reg_range(AS3722_SD0_VOLTAGE_REG, AS3722_SD6_VOLTAGE_REG),
+	regmap_reg_range(AS3722_GPIO0_CONTROL_REG, AS3722_LDO7_VOLTAGE_REG),
+	regmap_reg_range(AS3722_LDO9_VOLTAGE_REG, AS3722_REG_SEQU_MOD3_REG),
+	regmap_reg_range(AS3722_SD_PHSW_CTRL_REG, AS3722_PWM_CONTROL_H_REG),
+	regmap_reg_range(AS3722_WATCHDOG_TIMER_REG, AS3722_WATCHDOG_TIMER_REG),
+	regmap_reg_range(AS3722_WATCHDOG_SOFTWARE_SIGNAL_REG,
+					AS3722_BATTERY_VOLTAGE_MONITOR2_REG),
+	regmap_reg_range(AS3722_SD_CONTROL_REG, AS3722_PWM_VCONTROL4_REG),
+	regmap_reg_range(AS3722_BB_CHARGER_REG, AS3722_SRAM_REG),
+	regmap_reg_range(AS3722_RTC_ACCESS_REG, AS3722_RTC_ACCESS_REG),
+	regmap_reg_range(AS3722_RTC_STATUS_REG, AS3722_TEMP_STATUS_REG),
+	regmap_reg_range(AS3722_ADC0_CONTROL_REG, AS3722_ADC_CONFIGURATION_REG),
+	regmap_reg_range(AS3722_ASIC_ID1_REG, AS3722_ASIC_ID2_REG),
+	regmap_reg_range(AS3722_LOCK_REG, AS3722_LOCK_REG),
+};
+
+static const struct regmap_access_table as3722_readable_table = {
+	.yes_ranges = as3722_readable_ranges,
+	.n_yes_ranges = ARRAY_SIZE(as3722_readable_ranges),
+};
+
+static const struct regmap_range as3722_writable_ranges[] = {
+	regmap_reg_range(AS3722_SD0_VOLTAGE_REG, AS3722_SD6_VOLTAGE_REG),
+	regmap_reg_range(AS3722_GPIO0_CONTROL_REG, AS3722_LDO7_VOLTAGE_REG),
+	regmap_reg_range(AS3722_LDO9_VOLTAGE_REG, AS3722_GPIO_SIGNAL_OUT_REG),
+	regmap_reg_range(AS3722_REG_SEQU_MOD1_REG, AS3722_REG_SEQU_MOD3_REG),
+	regmap_reg_range(AS3722_SD_PHSW_CTRL_REG, AS3722_PWM_CONTROL_H_REG),
+	regmap_reg_range(AS3722_WATCHDOG_TIMER_REG, AS3722_WATCHDOG_TIMER_REG),
+	regmap_reg_range(AS3722_WATCHDOG_SOFTWARE_SIGNAL_REG,
+					AS3722_BATTERY_VOLTAGE_MONITOR2_REG),
+	regmap_reg_range(AS3722_SD_CONTROL_REG, AS3722_PWM_VCONTROL4_REG),
+	regmap_reg_range(AS3722_BB_CHARGER_REG, AS3722_SRAM_REG),
+	regmap_reg_range(AS3722_INTERRUPT_MASK1_REG, AS3722_TEMP_STATUS_REG),
+	regmap_reg_range(AS3722_ADC0_CONTROL_REG, AS3722_ADC1_CONTROL_REG),
+	regmap_reg_range(AS3722_ADC1_THRESHOLD_HI_MSB_REG,
+					AS3722_ADC_CONFIGURATION_REG),
+	regmap_reg_range(AS3722_LOCK_REG, AS3722_LOCK_REG),
+};
+
+static const struct regmap_access_table as3722_writable_table = {
+	.yes_ranges = as3722_writable_ranges,
+	.n_yes_ranges = ARRAY_SIZE(as3722_writable_ranges),
+};
+
+static const struct regmap_range as3722_cacheable_ranges[] = {
+	regmap_reg_range(AS3722_SD0_VOLTAGE_REG, AS3722_LDO11_VOLTAGE_REG),
+	regmap_reg_range(AS3722_SD_CONTROL_REG, AS3722_LDOCONTROL1_REG),
+};
+
+static const struct regmap_access_table as3722_volatile_table = {
+	.no_ranges = as3722_cacheable_ranges,
+	.n_no_ranges = ARRAY_SIZE(as3722_cacheable_ranges),
+};
+
+const struct regmap_config as3722_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = AS3722_MAX_REGISTER,
+	.cache_type = REGCACHE_RBTREE,
+	.rd_table = &as3722_readable_table,
+	.wr_table = &as3722_writable_table,
+	.volatile_table = &as3722_volatile_table,
+};
+
+static int as3722_i2c_of_probe(struct i2c_client *i2c,
+			struct as3722 *as3722)
+{
+	struct device_node *np = i2c->dev.of_node;
+	struct irq_data *irq_data;
+
+	if (!np) {
+		dev_err(&i2c->dev, "Device Tree not found\n");
+		return -EINVAL;
+	}
+
+	irq_data = irq_get_irq_data(i2c->irq);
+	if (!irq_data) {
+		dev_err(&i2c->dev, "Invalid IRQ: %d\n", i2c->irq);
+		return -EINVAL;
+	}
+
+	as3722->en_intern_int_pullup = of_property_read_bool(np,
+					"ams,enable-internal-int-pullup");
+	as3722->en_intern_i2c_pullup = of_property_read_bool(np,
+					"ams,enable-internal-i2c-pullup");
+	as3722->irq_flags = irqd_get_trigger_type(irq_data);
+	dev_dbg(&i2c->dev, "IRQ flags are 0x%08lx\n", as3722->irq_flags);
+	return 0;
+}
+
+static int as3722_i2c_probe(struct i2c_client *i2c,
+			const struct i2c_device_id *id)
+{
+	struct as3722 *as3722;
+	unsigned long irq_flags;
+	int ret;
+
+	as3722 = devm_kzalloc(&i2c->dev, sizeof(struct as3722), GFP_KERNEL);
+	if (!as3722)
+		return -ENOMEM;
+
+	as3722->dev = &i2c->dev;
+	as3722->chip_irq = i2c->irq;
+	i2c_set_clientdata(i2c, as3722);
+
+	ret = as3722_i2c_of_probe(i2c, as3722);
+	if (ret < 0)
+		return ret;
+
+	as3722->regmap = devm_regmap_init_i2c(i2c, &as3722_regmap_config);
+	if (IS_ERR(as3722->regmap)) {
+		ret = PTR_ERR(as3722->regmap);
+		dev_err(&i2c->dev, "regmap init failed: %d\n", ret);
+		return ret;
+	}
+
+	ret = as3722_check_device_id(as3722);
+	if (ret < 0)
+		return ret;
+
+	irq_flags = as3722->irq_flags | IRQF_ONESHOT;
+	ret = regmap_add_irq_chip(as3722->regmap, as3722->chip_irq,
+			irq_flags, -1, &as3722_irq_chip,
+			&as3722->irq_data);
+	if (ret < 0) {
+		dev_err(as3722->dev, "Failed to add regmap irq: %d\n", ret);
+		return ret;
+	}
+
+	ret = as3722_configure_pullups(as3722);
+	if (ret < 0)
+		goto scrub;
+
+	ret = mfd_add_devices(&i2c->dev, -1, as3722_devs,
+			ARRAY_SIZE(as3722_devs), NULL, 0,
+			regmap_irq_get_domain(as3722->irq_data));
+	if (ret) {
+		dev_err(as3722->dev, "Failed to add MFD devices: %d\n", ret);
+		goto scrub;
+	}
+
+	dev_dbg(as3722->dev, "AS3722 core driver initialized successfully\n");
+	return 0;
+
+scrub:
+	regmap_del_irq_chip(as3722->chip_irq, as3722->irq_data);
+	return ret;
+}
+
+static int as3722_i2c_remove(struct i2c_client *i2c)
+{
+	struct as3722 *as3722 = i2c_get_clientdata(i2c);
+
+	mfd_remove_devices(as3722->dev);
+	regmap_del_irq_chip(as3722->chip_irq, as3722->irq_data);
+	return 0;
+}
+
+static const struct of_device_id as3722_of_match[] = {
+	{ .compatible = "ams,as3722", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, as3722_of_match);
+
+static const struct i2c_device_id as3722_i2c_id[] = {
+	{ "as3722", 0 },
+	{},
+};
+MODULE_DEVICE_TABLE(i2c, as3722_i2c_id);
+
+static struct i2c_driver as3722_i2c_driver = {
+	.driver = {
+		.name = "as3722",
+		.owner = THIS_MODULE,
+		.of_match_table = as3722_of_match,
+	},
+	.probe = as3722_i2c_probe,
+	.remove = as3722_i2c_remove,
+	.id_table = as3722_i2c_id,
+};
+
+module_i2c_driver(as3722_i2c_driver);
+
+MODULE_DESCRIPTION("I2C support for AS3722 PMICs");
+MODULE_AUTHOR("Florian Lobmaier <florian.lobmaier@ams.com>");
+MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
+MODULE_LICENSE("GPL");
diff --git a/include/dt-bindings/mfd/as3722.h b/include/dt-bindings/mfd/as3722.h
new file mode 100644
index 000000000000..0e692562d77b
--- /dev/null
+++ b/include/dt-bindings/mfd/as3722.h
@@ -0,0 +1,52 @@
+/*
+ * This header provides macros for ams AS3722 device bindings.
+ *
+ * Copyright (c) 2013, NVIDIA Corporation.
+ *
+ * Author: Laxman Dewangan <ldewangan@nvidia.com>
+ *
+ */
+
+#ifndef __DT_BINDINGS_AS3722_H__
+#define __DT_BINDINGS_AS3722_H__
+
+/* External control pins */
+#define AS3722_EXT_CONTROL_PIN_ENABLE1 1
+#define AS3722_EXT_CONTROL_PIN_ENABLE2 2
+#define AS3722_EXT_CONTROL_PIN_ENABLE2 3
+
+/* Interrupt numbers for AS3722 */
+#define AS3722_IRQ_LID			0
+#define AS3722_IRQ_ACOK			1
+#define AS3722_IRQ_ENABLE1		2
+#define AS3722_IRQ_OCCUR_ALARM_SD0	3
+#define AS3722_IRQ_ONKEY_LONG_PRESS	4
+#define AS3722_IRQ_ONKEY		5
+#define AS3722_IRQ_OVTMP		6
+#define AS3722_IRQ_LOWBAT		7
+#define AS3722_IRQ_SD0_LV		8
+#define AS3722_IRQ_SD1_LV		9
+#define AS3722_IRQ_SD2_LV		10
+#define AS3722_IRQ_PWM1_OV_PROT		11
+#define AS3722_IRQ_PWM2_OV_PROT		12
+#define AS3722_IRQ_ENABLE2		13
+#define AS3722_IRQ_SD6_LV		14
+#define AS3722_IRQ_RTC_REP		15
+#define AS3722_IRQ_RTC_ALARM		16
+#define AS3722_IRQ_GPIO1		17
+#define AS3722_IRQ_GPIO2		18
+#define AS3722_IRQ_GPIO3		19
+#define AS3722_IRQ_GPIO4		20
+#define AS3722_IRQ_GPIO5		21
+#define AS3722_IRQ_WATCHDOG		22
+#define AS3722_IRQ_ENABLE3		23
+#define AS3722_IRQ_TEMP_SD0_SHUTDOWN	24
+#define AS3722_IRQ_TEMP_SD1_SHUTDOWN	25
+#define AS3722_IRQ_TEMP_SD2_SHUTDOWN	26
+#define AS3722_IRQ_TEMP_SD0_ALARM	27
+#define AS3722_IRQ_TEMP_SD1_ALARM	28
+#define AS3722_IRQ_TEMP_SD6_ALARM	29
+#define AS3722_IRQ_OCCUR_ALARM_SD6	30
+#define AS3722_IRQ_ADC			31
+
+#endif /* __DT_BINDINGS_AS3722_H__ */
diff --git a/include/linux/mfd/as3722.h b/include/linux/mfd/as3722.h
new file mode 100644
index 000000000000..16bf8a0dcd97
--- /dev/null
+++ b/include/linux/mfd/as3722.h
@@ -0,0 +1,423 @@
+/*
+ * as3722 definitions
+ *
+ * Copyright (C) 2013 ams
+ * Copyright (c) 2013, NVIDIA Corporation. All rights reserved.
+ *
+ * Author: Florian Lobmaier <florian.lobmaier@ams.com>
+ * Author: Laxman Dewangan <ldewangan@nvidia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ *
+ */
+
+#ifndef __LINUX_MFD_AS3722_H__
+#define __LINUX_MFD_AS3722_H__
+
+#include <linux/regmap.h>
+
+/* AS3722 registers */
+#define AS3722_SD0_VOLTAGE_REG				0x00
+#define AS3722_SD1_VOLTAGE_REG				0x01
+#define AS3722_SD2_VOLTAGE_REG				0x02
+#define AS3722_SD3_VOLTAGE_REG				0x03
+#define AS3722_SD4_VOLTAGE_REG				0x04
+#define AS3722_SD5_VOLTAGE_REG				0x05
+#define AS3722_SD6_VOLTAGE_REG				0x06
+#define AS3722_GPIO0_CONTROL_REG			0x08
+#define AS3722_GPIO1_CONTROL_REG			0x09
+#define AS3722_GPIO2_CONTROL_REG			0x0A
+#define AS3722_GPIO3_CONTROL_REG			0x0B
+#define AS3722_GPIO4_CONTROL_REG			0x0C
+#define AS3722_GPIO5_CONTROL_REG			0x0D
+#define AS3722_GPIO6_CONTROL_REG			0x0E
+#define AS3722_GPIO7_CONTROL_REG			0x0F
+#define AS3722_LDO0_VOLTAGE_REG				0x10
+#define AS3722_LDO1_VOLTAGE_REG				0x11
+#define AS3722_LDO2_VOLTAGE_REG				0x12
+#define AS3722_LDO3_VOLTAGE_REG				0x13
+#define AS3722_LDO4_VOLTAGE_REG				0x14
+#define AS3722_LDO5_VOLTAGE_REG				0x15
+#define AS3722_LDO6_VOLTAGE_REG				0x16
+#define AS3722_LDO7_VOLTAGE_REG				0x17
+#define AS3722_LDO9_VOLTAGE_REG				0x19
+#define AS3722_LDO10_VOLTAGE_REG			0x1A
+#define AS3722_LDO11_VOLTAGE_REG			0x1B
+#define AS3722_GPIO_DEB1_REG				0x1E
+#define AS3722_GPIO_DEB2_REG				0x1F
+#define AS3722_GPIO_SIGNAL_OUT_REG			0x20
+#define AS3722_GPIO_SIGNAL_IN_REG			0x21
+#define AS3722_REG_SEQU_MOD1_REG			0x22
+#define AS3722_REG_SEQU_MOD2_REG			0x23
+#define AS3722_REG_SEQU_MOD3_REG			0x24
+#define AS3722_SD_PHSW_CTRL_REG				0x27
+#define AS3722_SD_PHSW_STATUS				0x28
+#define AS3722_SD0_CONTROL_REG				0x29
+#define AS3722_SD1_CONTROL_REG				0x2A
+#define AS3722_SDmph_CONTROL_REG			0x2B
+#define AS3722_SD23_CONTROL_REG				0x2C
+#define AS3722_SD4_CONTROL_REG				0x2D
+#define AS3722_SD5_CONTROL_REG				0x2E
+#define AS3722_SD6_CONTROL_REG				0x2F
+#define AS3722_SD_DVM_REG				0x30
+#define AS3722_RESET_REASON_REG				0x31
+#define AS3722_BATTERY_VOLTAGE_MONITOR_REG		0x32
+#define AS3722_STARTUP_CONTROL_REG			0x33
+#define AS3722_RESET_TIMER_REG				0x34
+#define AS3722_REFERENCE_CONTROL_REG			0x35
+#define AS3722_RESET_CONTROL_REG			0x36
+#define AS3722_OVER_TEMP_CONTROL_REG			0x37
+#define AS3722_WATCHDOG_CONTROL_REG			0x38
+#define AS3722_REG_STANDBY_MOD1_REG			0x39
+#define AS3722_REG_STANDBY_MOD2_REG			0x3A
+#define AS3722_REG_STANDBY_MOD3_REG			0x3B
+#define AS3722_ENABLE_CTRL1_REG				0x3C
+#define AS3722_ENABLE_CTRL2_REG				0x3D
+#define AS3722_ENABLE_CTRL3_REG				0x3E
+#define AS3722_ENABLE_CTRL4_REG				0x3F
+#define AS3722_ENABLE_CTRL5_REG				0x40
+#define AS3722_PWM_CONTROL_L_REG			0x41
+#define AS3722_PWM_CONTROL_H_REG			0x42
+#define AS3722_WATCHDOG_TIMER_REG			0x46
+#define AS3722_WATCHDOG_SOFTWARE_SIGNAL_REG		0x48
+#define AS3722_IOVOLTAGE_REG				0x49
+#define AS3722_BATTERY_VOLTAGE_MONITOR2_REG		0x4A
+#define AS3722_SD_CONTROL_REG				0x4D
+#define AS3722_LDOCONTROL0_REG				0x4E
+#define AS3722_LDOCONTROL1_REG				0x4F
+#define AS3722_SD0_PROTECT_REG				0x50
+#define AS3722_SD6_PROTECT_REG				0x51
+#define AS3722_PWM_VCONTROL1_REG			0x52
+#define AS3722_PWM_VCONTROL2_REG			0x53
+#define AS3722_PWM_VCONTROL3_REG			0x54
+#define AS3722_PWM_VCONTROL4_REG			0x55
+#define AS3722_BB_CHARGER_REG				0x57
+#define AS3722_CTRL_SEQU1_REG				0x58
+#define AS3722_CTRL_SEQU2_REG				0x59
+#define AS3722_OVCURRENT_REG				0x5A
+#define AS3722_OVCURRENT_DEB_REG			0x5B
+#define AS3722_SDLV_DEB_REG				0x5C
+#define AS3722_OC_PG_CTRL_REG				0x5D
+#define AS3722_OC_PG_CTRL2_REG				0x5E
+#define AS3722_CTRL_STATUS				0x5F
+#define AS3722_RTC_CONTROL_REG				0x60
+#define AS3722_RTC_SECOND_REG				0x61
+#define AS3722_RTC_MINUTE_REG				0x62
+#define AS3722_RTC_HOUR_REG				0x63
+#define AS3722_RTC_DAY_REG				0x64
+#define AS3722_RTC_MONTH_REG				0x65
+#define AS3722_RTC_YEAR_REG				0x66
+#define AS3722_RTC_ALARM_SECOND_REG			0x67
+#define AS3722_RTC_ALARM_MINUTE_REG			0x68
+#define AS3722_RTC_ALARM_HOUR_REG			0x69
+#define AS3722_RTC_ALARM_DAY_REG			0x6A
+#define AS3722_RTC_ALARM_MONTH_REG			0x6B
+#define AS3722_RTC_ALARM_YEAR_REG			0x6C
+#define AS3722_SRAM_REG					0x6D
+#define AS3722_RTC_ACCESS_REG				0x6F
+#define AS3722_RTC_STATUS_REG				0x73
+#define AS3722_INTERRUPT_MASK1_REG			0x74
+#define AS3722_INTERRUPT_MASK2_REG			0x75
+#define AS3722_INTERRUPT_MASK3_REG			0x76
+#define AS3722_INTERRUPT_MASK4_REG			0x77
+#define AS3722_INTERRUPT_STATUS1_REG			0x78
+#define AS3722_INTERRUPT_STATUS2_REG			0x79
+#define AS3722_INTERRUPT_STATUS3_REG			0x7A
+#define AS3722_INTERRUPT_STATUS4_REG			0x7B
+#define AS3722_TEMP_STATUS_REG				0x7D
+#define AS3722_ADC0_CONTROL_REG				0x80
+#define AS3722_ADC1_CONTROL_REG				0x81
+#define AS3722_ADC0_MSB_RESULT_REG			0x82
+#define AS3722_ADC0_LSB_RESULT_REG			0x83
+#define AS3722_ADC1_MSB_RESULT_REG			0x84
+#define AS3722_ADC1_LSB_RESULT_REG			0x85
+#define AS3722_ADC1_THRESHOLD_HI_MSB_REG		0x86
+#define AS3722_ADC1_THRESHOLD_HI_LSB_REG		0x87
+#define AS3722_ADC1_THRESHOLD_LO_MSB_REG		0x88
+#define AS3722_ADC1_THRESHOLD_LO_LSB_REG		0x89
+#define AS3722_ADC_CONFIGURATION_REG			0x8A
+#define AS3722_ASIC_ID1_REG				0x90
+#define AS3722_ASIC_ID2_REG				0x91
+#define AS3722_LOCK_REG					0x9E
+#define AS3722_MAX_REGISTER				0xF4
+
+#define AS3722_SD0_EXT_ENABLE_MASK			0x03
+#define AS3722_SD1_EXT_ENABLE_MASK			0x0C
+#define AS3722_SD2_EXT_ENABLE_MASK			0x30
+#define AS3722_SD3_EXT_ENABLE_MASK			0xC0
+#define AS3722_SD4_EXT_ENABLE_MASK			0x03
+#define AS3722_SD5_EXT_ENABLE_MASK			0x0C
+#define AS3722_SD6_EXT_ENABLE_MASK			0x30
+#define AS3722_LDO0_EXT_ENABLE_MASK			0x03
+#define AS3722_LDO1_EXT_ENABLE_MASK			0x0C
+#define AS3722_LDO2_EXT_ENABLE_MASK			0x30
+#define AS3722_LDO3_EXT_ENABLE_MASK			0xC0
+#define AS3722_LDO4_EXT_ENABLE_MASK			0x03
+#define AS3722_LDO5_EXT_ENABLE_MASK			0x0C
+#define AS3722_LDO6_EXT_ENABLE_MASK			0x30
+#define AS3722_LDO7_EXT_ENABLE_MASK			0xC0
+#define AS3722_LDO9_EXT_ENABLE_MASK			0x0C
+#define AS3722_LDO10_EXT_ENABLE_MASK			0x30
+#define AS3722_LDO11_EXT_ENABLE_MASK			0xC0
+
+#define AS3722_OVCURRENT_SD0_ALARM_MASK			0x07
+#define AS3722_OVCURRENT_SD0_ALARM_SHIFT		0x01
+#define AS3722_OVCURRENT_SD0_TRIP_MASK			0x18
+#define AS3722_OVCURRENT_SD0_TRIP_SHIFT			0x03
+#define AS3722_OVCURRENT_SD1_TRIP_MASK			0x60
+#define AS3722_OVCURRENT_SD1_TRIP_SHIFT			0x05
+
+#define AS3722_OVCURRENT_SD6_ALARM_MASK			0x07
+#define AS3722_OVCURRENT_SD6_ALARM_SHIFT		0x01
+#define AS3722_OVCURRENT_SD6_TRIP_MASK			0x18
+#define AS3722_OVCURRENT_SD6_TRIP_SHIFT			0x03
+
+/* AS3722 register bits and bit masks */
+#define AS3722_LDO_ILIMIT_MASK				BIT(7)
+#define AS3722_LDO_ILIMIT_BIT				BIT(7)
+#define AS3722_LDO0_VSEL_MASK				0x1F
+#define AS3722_LDO0_VSEL_MIN				0x01
+#define AS3722_LDO0_VSEL_MAX				0x12
+#define AS3722_LDO0_NUM_VOLT				0x12
+#define AS3722_LDO3_VSEL_MASK				0x3F
+#define AS3722_LDO3_VSEL_MIN				0x01
+#define AS3722_LDO3_VSEL_MAX				0x2D
+#define AS3722_LDO3_NUM_VOLT				0x2D
+#define AS3722_LDO_VSEL_MASK				0x7F
+#define AS3722_LDO_VSEL_MIN				0x01
+#define AS3722_LDO_VSEL_MAX				0x7F
+#define AS3722_LDO_VSEL_DNU_MIN				0x25
+#define AS3722_LDO_VSEL_DNU_MAX				0x3F
+#define AS3722_LDO_NUM_VOLT				0x80
+
+#define AS3722_LDO0_CTRL				BIT(0)
+#define AS3722_LDO1_CTRL				BIT(1)
+#define AS3722_LDO2_CTRL				BIT(2)
+#define AS3722_LDO3_CTRL				BIT(3)
+#define AS3722_LDO4_CTRL				BIT(4)
+#define AS3722_LDO5_CTRL				BIT(5)
+#define AS3722_LDO6_CTRL				BIT(6)
+#define AS3722_LDO7_CTRL				BIT(7)
+#define AS3722_LDO9_CTRL				BIT(1)
+#define AS3722_LDO10_CTRL				BIT(2)
+#define AS3722_LDO11_CTRL				BIT(3)
+
+#define AS3722_LDO3_MODE_MASK				(3 << 6)
+#define AS3722_LDO3_MODE_VAL(n)				(((n) & 0x3) << 6)
+#define AS3722_LDO3_MODE_PMOS				AS3722_LDO3_MODE_VAL(0)
+#define AS3722_LDO3_MODE_PMOS_TRACKING			AS3722_LDO3_MODE_VAL(1)
+#define AS3722_LDO3_MODE_NMOS				AS3722_LDO3_MODE_VAL(2)
+#define AS3722_LDO3_MODE_SWITCH				AS3722_LDO3_MODE_VAL(3)
+
+#define AS3722_SD_VSEL_MASK				0x7F
+#define AS3722_SD0_VSEL_MIN				0x01
+#define AS3722_SD0_VSEL_MAX				0x5A
+#define AS3722_SD2_VSEL_MIN				0x01
+#define AS3722_SD2_VSEL_MAX				0x7F
+
+#define AS3722_SDn_CTRL(n)				BIT(n)
+
+#define AS3722_SD0_MODE_FAST				BIT(4)
+#define AS3722_SD1_MODE_FAST				BIT(4)
+#define AS3722_SD2_MODE_FAST				BIT(2)
+#define AS3722_SD3_MODE_FAST				BIT(6)
+#define AS3722_SD4_MODE_FAST				BIT(2)
+#define AS3722_SD5_MODE_FAST				BIT(2)
+#define AS3722_SD6_MODE_FAST				BIT(4)
+
+#define AS3722_POWER_OFF				BIT(1)
+
+#define AS3722_INTERRUPT_MASK1_LID			BIT(0)
+#define AS3722_INTERRUPT_MASK1_ACOK			BIT(1)
+#define AS3722_INTERRUPT_MASK1_ENABLE1			BIT(2)
+#define AS3722_INTERRUPT_MASK1_OCURR_ALARM_SD0		BIT(3)
+#define AS3722_INTERRUPT_MASK1_ONKEY_LONG		BIT(4)
+#define AS3722_INTERRUPT_MASK1_ONKEY			BIT(5)
+#define AS3722_INTERRUPT_MASK1_OVTMP			BIT(6)
+#define AS3722_INTERRUPT_MASK1_LOWBAT			BIT(7)
+
+#define AS3722_INTERRUPT_MASK2_SD0_LV			BIT(0)
+#define AS3722_INTERRUPT_MASK2_SD1_LV			BIT(1)
+#define AS3722_INTERRUPT_MASK2_SD2345_LV		BIT(2)
+#define AS3722_INTERRUPT_MASK2_PWM1_OV_PROT		BIT(3)
+#define AS3722_INTERRUPT_MASK2_PWM2_OV_PROT		BIT(4)
+#define AS3722_INTERRUPT_MASK2_ENABLE2			BIT(5)
+#define AS3722_INTERRUPT_MASK2_SD6_LV			BIT(6)
+#define AS3722_INTERRUPT_MASK2_RTC_REP			BIT(7)
+
+#define AS3722_INTERRUPT_MASK3_RTC_ALARM		BIT(0)
+#define AS3722_INTERRUPT_MASK3_GPIO1			BIT(1)
+#define AS3722_INTERRUPT_MASK3_GPIO2			BIT(2)
+#define AS3722_INTERRUPT_MASK3_GPIO3			BIT(3)
+#define AS3722_INTERRUPT_MASK3_GPIO4			BIT(4)
+#define AS3722_INTERRUPT_MASK3_GPIO5			BIT(5)
+#define AS3722_INTERRUPT_MASK3_WATCHDOG			BIT(6)
+#define AS3722_INTERRUPT_MASK3_ENABLE3			BIT(7)
+
+#define AS3722_INTERRUPT_MASK4_TEMP_SD0_SHUTDOWN	BIT(0)
+#define AS3722_INTERRUPT_MASK4_TEMP_SD1_SHUTDOWN	BIT(1)
+#define AS3722_INTERRUPT_MASK4_TEMP_SD6_SHUTDOWN	BIT(2)
+#define AS3722_INTERRUPT_MASK4_TEMP_SD0_ALARM		BIT(3)
+#define AS3722_INTERRUPT_MASK4_TEMP_SD1_ALARM		BIT(4)
+#define AS3722_INTERRUPT_MASK4_TEMP_SD6_ALARM		BIT(5)
+#define AS3722_INTERRUPT_MASK4_OCCUR_ALARM_SD6		BIT(6)
+#define AS3722_INTERRUPT_MASK4_ADC			BIT(7)
+
+#define AS3722_ADC1_INTERVAL_TIME			BIT(0)
+#define AS3722_ADC1_INT_MODE_ON				BIT(1)
+#define AS3722_ADC_BUF_ON				BIT(2)
+#define AS3722_ADC1_LOW_VOLTAGE_RANGE			BIT(5)
+#define AS3722_ADC1_INTEVAL_SCAN			BIT(6)
+#define AS3722_ADC1_INT_MASK				BIT(7)
+
+#define AS3722_ADC_MSB_VAL_MASK				0x7F
+#define AS3722_ADC_LSB_VAL_MASK				0x07
+
+#define AS3722_ADC0_CONV_START				BIT(7)
+#define AS3722_ADC0_CONV_NOTREADY			BIT(7)
+#define AS3722_ADC0_SOURCE_SELECT_MASK			0x1F
+
+#define AS3722_ADC1_CONV_START				BIT(7)
+#define AS3722_ADC1_CONV_NOTREADY			BIT(7)
+#define AS3722_ADC1_SOURCE_SELECT_MASK			0x1F
+
+/* GPIO modes */
+#define AS3722_GPIO_MODE_MASK				0x07
+#define AS3722_GPIO_MODE_INPUT				0x00
+#define AS3722_GPIO_MODE_OUTPUT_VDDH			0x01
+#define AS3722_GPIO_MODE_IO_OPEN_DRAIN			0x02
+#define AS3722_GPIO_MODE_ADC_IN				0x03
+#define AS3722_GPIO_MODE_INPUT_PULL_UP			0x04
+#define AS3722_GPIO_MODE_INPUT_PULL_DOWN		0x05
+#define AS3722_GPIO_MODE_IO_OPEN_DRAIN_PULL_UP		0x06
+#define AS3722_GPIO_MODE_OUTPUT_VDDL			0x07
+#define AS3722_GPIO_MODE_VAL(n)			((n) & AS3722_GPIO_MODE_MASK)
+
+#define AS3722_GPIO_INV					BIT(7)
+#define AS3722_GPIO_IOSF_MASK				0x78
+#define AS3722_GPIO_IOSF_VAL(n)				(((n) & 0xF) << 3)
+#define AS3722_GPIO_IOSF_NORMAL				AS3722_GPIO_IOSF_VAL(0)
+#define AS3722_GPIO_IOSF_INTERRUPT_OUT			AS3722_GPIO_IOSF_VAL(1)
+#define AS3722_GPIO_IOSF_VSUP_LOW_OUT			AS3722_GPIO_IOSF_VAL(2)
+#define AS3722_GPIO_IOSF_GPIO_INTERRUPT_IN		AS3722_GPIO_IOSF_VAL(3)
+#define AS3722_GPIO_IOSF_ISINK_PWM_IN			AS3722_GPIO_IOSF_VAL(4)
+#define AS3722_GPIO_IOSF_VOLTAGE_STBY			AS3722_GPIO_IOSF_VAL(5)
+#define AS3722_GPIO_IOSF_PWR_GOOD_OUT			AS3722_GPIO_IOSF_VAL(7)
+#define AS3722_GPIO_IOSF_Q32K_OUT			AS3722_GPIO_IOSF_VAL(8)
+#define AS3722_GPIO_IOSF_WATCHDOG_IN			AS3722_GPIO_IOSF_VAL(9)
+#define AS3722_GPIO_IOSF_SOFT_RESET_IN			AS3722_GPIO_IOSF_VAL(11)
+#define AS3722_GPIO_IOSF_PWM_OUT			AS3722_GPIO_IOSF_VAL(12)
+#define AS3722_GPIO_IOSF_VSUP_LOW_DEB_OUT		AS3722_GPIO_IOSF_VAL(13)
+#define AS3722_GPIO_IOSF_SD6_LOW_VOLT_LOW		AS3722_GPIO_IOSF_VAL(14)
+
+#define AS3722_GPIOn_SIGNAL(n)				BIT(n)
+#define AS3722_GPIOn_CONTROL_REG(n)		(AS3722_GPIO0_CONTROL_REG + n)
+#define AS3722_I2C_PULL_UP				BIT(4)
+#define AS3722_INT_PULL_UP				BIT(5)
+
+#define AS3722_RTC_REP_WAKEUP_EN			BIT(0)
+#define AS3722_RTC_ALARM_WAKEUP_EN			BIT(1)
+#define AS3722_RTC_ON					BIT(2)
+#define AS3722_RTC_IRQMODE				BIT(3)
+#define AS3722_RTC_CLK32K_OUT_EN			BIT(5)
+
+#define AS3722_WATCHDOG_TIMER_MAX			0x7F
+#define AS3722_WATCHDOG_ON				BIT(0)
+#define AS3722_WATCHDOG_SW_SIG				BIT(0)
+
+#define AS3722_EXT_CONTROL_ENABLE1			0x1
+#define AS3722_EXT_CONTROL_ENABLE2			0x2
+#define AS3722_EXT_CONTROL_ENABLE3			0x3
+
+/* Interrupt IDs */
+enum as3722_irq {
+	AS3722_IRQ_LID,
+	AS3722_IRQ_ACOK,
+	AS3722_IRQ_ENABLE1,
+	AS3722_IRQ_OCCUR_ALARM_SD0,
+	AS3722_IRQ_ONKEY_LONG_PRESS,
+	AS3722_IRQ_ONKEY,
+	AS3722_IRQ_OVTMP,
+	AS3722_IRQ_LOWBAT,
+	AS3722_IRQ_SD0_LV,
+	AS3722_IRQ_SD1_LV,
+	AS3722_IRQ_SD2_LV,
+	AS3722_IRQ_PWM1_OV_PROT,
+	AS3722_IRQ_PWM2_OV_PROT,
+	AS3722_IRQ_ENABLE2,
+	AS3722_IRQ_SD6_LV,
+	AS3722_IRQ_RTC_REP,
+	AS3722_IRQ_RTC_ALARM,
+	AS3722_IRQ_GPIO1,
+	AS3722_IRQ_GPIO2,
+	AS3722_IRQ_GPIO3,
+	AS3722_IRQ_GPIO4,
+	AS3722_IRQ_GPIO5,
+	AS3722_IRQ_WATCHDOG,
+	AS3722_IRQ_ENABLE3,
+	AS3722_IRQ_TEMP_SD0_SHUTDOWN,
+	AS3722_IRQ_TEMP_SD1_SHUTDOWN,
+	AS3722_IRQ_TEMP_SD2_SHUTDOWN,
+	AS3722_IRQ_TEMP_SD0_ALARM,
+	AS3722_IRQ_TEMP_SD1_ALARM,
+	AS3722_IRQ_TEMP_SD6_ALARM,
+	AS3722_IRQ_OCCUR_ALARM_SD6,
+	AS3722_IRQ_ADC,
+	AS3722_IRQ_MAX,
+};
+
+struct as3722 {
+	struct device *dev;
+	struct regmap *regmap;
+	int chip_irq;
+	unsigned long irq_flags;
+	bool en_intern_int_pullup;
+	bool en_intern_i2c_pullup;
+	struct regmap_irq_chip_data *irq_data;
+};
+
+static inline int as3722_read(struct as3722 *as3722, u32 reg, u32 *dest)
+{
+	return regmap_read(as3722->regmap, reg, dest);
+}
+
+static inline int as3722_write(struct as3722 *as3722, u32 reg, u32 value)
+{
+	return regmap_write(as3722->regmap, reg, value);
+}
+
+static inline int as3722_block_read(struct as3722 *as3722, u32 reg,
+		int count, u8 *buf)
+{
+	return regmap_bulk_read(as3722->regmap, reg, buf, count);
+}
+
+static inline int as3722_block_write(struct as3722 *as3722, u32 reg,
+		int count, u8 *data)
+{
+	return regmap_bulk_write(as3722->regmap, reg, data, count);
+}
+
+static inline int as3722_update_bits(struct as3722 *as3722, u32 reg,
+		u32 mask, u8 val)
+{
+	return regmap_update_bits(as3722->regmap, reg, mask, val);
+}
+
+static inline int as3722_irq_get_virq(struct as3722 *as3722, int irq)
+{
+	return regmap_irq_get_virq(as3722->irq_data, irq);
+}
+#endif /* __LINUX_MFD_AS3722_H__ */
-- 
cgit 


From df73de9b0d412915384396637bf67ef9208161e9 Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Tue, 22 Oct 2013 16:46:25 +0800
Subject: mfd: syscon: Return -ENOSYS if CONFIG_MFD_SYSCON is not enabled

Some platforms may not define CONFIG_MFD_SYSCON (or haven't syscon),
it can fix build error for these platforms.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 include/linux/mfd/syscon.h | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/include/linux/mfd/syscon.h b/include/linux/mfd/syscon.h
index b473577f36db..8789fa3c7fd9 100644
--- a/include/linux/mfd/syscon.h
+++ b/include/linux/mfd/syscon.h
@@ -17,10 +17,35 @@
 
 struct device_node;
 
+#ifdef CONFIG_MFD_SYSCON
 extern struct regmap *syscon_node_to_regmap(struct device_node *np);
 extern struct regmap *syscon_regmap_lookup_by_compatible(const char *s);
 extern struct regmap *syscon_regmap_lookup_by_pdevname(const char *s);
 extern struct regmap *syscon_regmap_lookup_by_phandle(
 					struct device_node *np,
 					const char *property);
+#else
+static inline struct regmap *syscon_node_to_regmap(struct device_node *np)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static inline struct regmap *syscon_regmap_lookup_by_compatible(const char *s)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static inline struct regmap *syscon_regmap_lookup_by_pdevname(const char *s)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static inline struct regmap *syscon_regmap_lookup_by_phandle(
+					struct device_node *np,
+					const char *property)
+{
+	return ERR_PTR(-ENOSYS);
+}
+#endif
+
 #endif /* __LINUX_MFD_SYSCON_H__ */
-- 
cgit 


From 317b2099938fe6f27e51c4b58e76f4de8212d3e6 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 22 Oct 2013 16:12:39 +0200
Subject: mfd: ti_am335x_tscadc: Avoid possible deadlock of reg_lock

Since the addition of continuous sampling mode and shared irq support,
the reg_lock lock can be taken with and without interrupts. This patch
uses the *_irq* variant which should be used in order to avaoid a deadlock.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/ti_am335x_tscadc.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/mfd/ti_am335x_tscadc.c b/drivers/mfd/ti_am335x_tscadc.c
index e5a40e8a0904..88718abfb9ba 100644
--- a/drivers/mfd/ti_am335x_tscadc.c
+++ b/drivers/mfd/ti_am335x_tscadc.c
@@ -56,21 +56,25 @@ EXPORT_SYMBOL_GPL(am335x_tsc_se_update);
 
 void am335x_tsc_se_set(struct ti_tscadc_dev *tsadc, u32 val)
 {
-	spin_lock(&tsadc->reg_lock);
+	unsigned long flags;
+
+	spin_lock_irqsave(&tsadc->reg_lock, flags);
 	tsadc->reg_se_cache = tscadc_readl(tsadc, REG_SE);
 	tsadc->reg_se_cache |= val;
 	am335x_tsc_se_update(tsadc);
-	spin_unlock(&tsadc->reg_lock);
+	spin_unlock_irqrestore(&tsadc->reg_lock, flags);
 }
 EXPORT_SYMBOL_GPL(am335x_tsc_se_set);
 
 void am335x_tsc_se_clr(struct ti_tscadc_dev *tsadc, u32 val)
 {
-	spin_lock(&tsadc->reg_lock);
+	unsigned long flags;
+
+	spin_lock_irqsave(&tsadc->reg_lock, flags);
 	tsadc->reg_se_cache = tscadc_readl(tsadc, REG_SE);
 	tsadc->reg_se_cache &= ~val;
 	am335x_tsc_se_update(tsadc);
-	spin_unlock(&tsadc->reg_lock);
+	spin_unlock_irqrestore(&tsadc->reg_lock, flags);
 }
 EXPORT_SYMBOL_GPL(am335x_tsc_se_clr);
 
-- 
cgit 


From 6bfd1e63de34a278d67db32e3644340838308252 Mon Sep 17 00:00:00 2001
From: Johannes Thumshirn <johannes.thumshirn@men.de>
Date: Wed, 23 Oct 2013 13:31:00 +0200
Subject: mfd: lpc_sch: Ignore resource conflicts when adding mfd cells

Currently probe of lpc_sch fails on Intel Poulsbo because of ACPI resource
conflicts. A solution is to  set the ignore_resource_conflicts flag in the mfd cells.

Tested-by: Andreas Werner <andreas.werner@men.de>
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@men.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/lpc_sch.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/mfd/lpc_sch.c b/drivers/mfd/lpc_sch.c
index 8cc6aac27cb2..fbfbf0b7f97a 100644
--- a/drivers/mfd/lpc_sch.c
+++ b/drivers/mfd/lpc_sch.c
@@ -59,18 +59,21 @@ static struct mfd_cell isch_smbus_cell = {
 	.name = "isch_smbus",
 	.num_resources = 1,
 	.resources = &smbus_sch_resource,
+	.ignore_resource_conflicts = true,
 };
 
 static struct mfd_cell sch_gpio_cell = {
 	.name = "sch_gpio",
 	.num_resources = 1,
 	.resources = &gpio_sch_resource,
+	.ignore_resource_conflicts = true,
 };
 
 static struct mfd_cell wdt_sch_cell = {
 	.name = "ie6xx_wdt",
 	.num_resources = 1,
 	.resources = &wdt_sch_resource,
+	.ignore_resource_conflicts = true,
 };
 
 static DEFINE_PCI_DEVICE_TABLE(lpc_sch_ids) = {
-- 
cgit 


From d79e07c95d1328773509c69131e5f25cac5dbf50 Mon Sep 17 00:00:00 2001
From: "Hebbar, Gururaja" <gururaja.hebbar@ti.com>
Date: Wed, 23 Oct 2013 15:30:13 +0300
Subject: ASoC: davinci: Add support for AM33xx SoC Audio

AM33xx uses same McASP IP as the Davinci Platform. This patch updates
Kconfig and makefile to enable build for McASP, PCM & Codec drivers.

Signed-off-by: Hebbar, Gururaja <gururaja.hebbar@ti.com>
Signed-off-by: Darren Etheridge <detheridge@ti.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/davinci/Kconfig  | 18 +++++++++++++++---
 sound/soc/davinci/Makefile |  1 +
 2 files changed, 16 insertions(+), 3 deletions(-)

diff --git a/sound/soc/davinci/Kconfig b/sound/soc/davinci/Kconfig
index c82f89c9475b..95970f5db3ec 100644
--- a/sound/soc/davinci/Kconfig
+++ b/sound/soc/davinci/Kconfig
@@ -1,9 +1,10 @@
 config SND_DAVINCI_SOC
-	tristate "SoC Audio for the TI DAVINCI chip"
-	depends on ARCH_DAVINCI
+	tristate "SoC Audio for the TI DAVINCI or AM33XX chip"
+	depends on ARCH_DAVINCI || SOC_AM33XX
 	help
+	  Platform driver for daVinci or AM33xx
 	  Say Y or M if you want to add support for codecs attached to
-	  the DAVINCI AC97 or I2S interface. You will also need
+	  the DAVINCI AC97, I2S, or McASP interface. You will also need
 	  to select the audio interfaces to support below.
 
 config SND_DAVINCI_SOC_I2S
@@ -15,6 +16,17 @@ config SND_DAVINCI_SOC_MCASP
 config SND_DAVINCI_SOC_VCIF
 	tristate
 
+config SND_AM33XX_SOC_EVM
+	tristate "SoC Audio for the AM33XX chip based boards"
+	depends on SND_DAVINCI_SOC && SOC_AM33XX
+	select SND_SOC_TLV320AIC3X
+	select SND_DAVINCI_SOC_MCASP
+	help
+	  Say Y or M if you want to add support for SoC audio on AM33XX
+	  boards using McASP and TLV320AIC3X codec. For example AM335X-EVM,
+	  AM335X-EVMSK, and BeagelBone with AudioCape boards have this
+	  setup.
+
 config SND_DAVINCI_SOC_EVM
 	tristate "SoC Audio support for DaVinci DM6446, DM355 or DM365 EVM"
 	depends on SND_DAVINCI_SOC
diff --git a/sound/soc/davinci/Makefile b/sound/soc/davinci/Makefile
index a396ab6d6d5e..bc81e79fc301 100644
--- a/sound/soc/davinci/Makefile
+++ b/sound/soc/davinci/Makefile
@@ -13,6 +13,7 @@ obj-$(CONFIG_SND_DAVINCI_SOC_VCIF) += snd-soc-davinci-vcif.o
 snd-soc-evm-objs := davinci-evm.o
 
 obj-$(CONFIG_SND_DAVINCI_SOC_EVM) += snd-soc-evm.o
+obj-$(CONFIG_SND_AM33XX_SOC_EVM) += snd-soc-evm.o
 obj-$(CONFIG_SND_DM6467_SOC_EVM) += snd-soc-evm.o
 obj-$(CONFIG_SND_DA830_SOC_EVM) += snd-soc-evm.o
 obj-$(CONFIG_SND_DA850_SOC_EVM) += snd-soc-evm.o
-- 
cgit 


From d5faaa34262d432130f07fed958c8161ef2715ab Mon Sep 17 00:00:00 2001
From: Jyri Sarha <jsarha@ti.com>
Date: Wed, 23 Oct 2013 15:30:15 +0300
Subject: ASoC: davinci-mcasp: Remove last reference to num-serializer in DT
 doc

Remove last reference to num-serializer in davinci-mcasp devicetree
binding document.

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt | 1 -
 1 file changed, 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
index 0aa416b68e3d..ed785b3f67be 100644
--- a/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
+++ b/Documentation/devicetree/bindings/sound/davinci-mcasp-audio.txt
@@ -15,7 +15,6 @@ Required properties:
   	    IEC60958-1, and AES-3 formats.
 - tdm-slots : Slots for TDM operation. Indicates number of channels transmitted
   	      or received over one serializer.
-- num-serializer : Serializers used by McASP.
 - serial-dir : A list of serializer configuration. Each entry is a number
                indication for serializer pin direction.
                (0 - INACTIVE, 1 - TX, 2 - RX)
-- 
cgit 


From ee2f615d6e59cea2b9a415661a7f27caffcb3528 Mon Sep 17 00:00:00 2001
From: "Hebbar, Gururaja" <gururaja.hebbar@ti.com>
Date: Wed, 23 Oct 2013 15:30:14 +0300
Subject: ASoC: davinci-evm: Add device tree binding

Device tree support for Davinci Machine driver

When the board boots with device tree, the driver will receive card,
codec, dai interface details (like the card name, DAPM routing map,
phandle for the audio components described in the dts file, codec mclk
speed). The card will be set up based on this information. Since the
routing is provided via DT we can mark the card fully routed so core
can take care of disconnecting the unused pins.

Signed-off-by: Hebbar, Gururaja <gururaja.hebbar@ti.com>
Signed-off-by: Darren Etheridge <detheridge@ti.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 .../bindings/sound/davinci-evm-audio.txt           |  42 +++++++
 sound/soc/davinci/davinci-evm.c                    | 124 ++++++++++++++++++++-
 2 files changed, 164 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/sound/davinci-evm-audio.txt

diff --git a/Documentation/devicetree/bindings/sound/davinci-evm-audio.txt b/Documentation/devicetree/bindings/sound/davinci-evm-audio.txt
new file mode 100644
index 000000000000..865178d5cdf3
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/davinci-evm-audio.txt
@@ -0,0 +1,42 @@
+* Texas Instruments SoC audio setups with TLV320AIC3X Codec
+
+Required properties:
+- compatible : "ti,da830-evm-audio" : forDM365/DA8xx/OMAPL1x/AM33xx
+- ti,model : The user-visible name of this sound complex.
+- ti,audio-codec : The phandle of the TLV320AIC3x audio codec
+- ti,mcasp-controller : The phandle of the McASP controller
+- ti,codec-clock-rate : The Codec Clock rate (in Hz) applied to the Codec
+- ti,audio-routing : A list of the connections between audio components.
+  Each entry is a pair of strings, the first being the connection's sink,
+  the second being the connection's source. Valid names for sources and
+  sinks are the codec's pins, and the jacks on the board:
+
+  Board connectors:
+
+  * Headphone Jack
+  * Line Out
+  * Mic Jack
+  * Line In
+
+
+Example:
+
+sound {
+	compatible = "ti,da830-evm-audio";
+	ti,model = "DA830 EVM";
+	ti,audio-codec = <&tlv320aic3x>;
+	ti,mcasp-controller = <&mcasp1>;
+	ti,codec-clock-rate = <12000000>;
+	ti,audio-routing =
+		"Headphone Jack",       "HPLOUT",
+		"Headphone Jack",       "HPROUT",
+		"Line Out",             "LLOUT",
+		"Line Out",             "RLOUT",
+		"MIC3L",                "Mic Bias 2V",
+		"MIC3R",                "Mic Bias 2V",
+		"Mic Bias 2V",          "Mic Jack",
+		"LINE1L",               "Line In",
+		"LINE2L",               "Line In",
+		"LINE1R",               "Line In",
+		"LINE2R",               "Line In";
+};
diff --git a/sound/soc/davinci/davinci-evm.c b/sound/soc/davinci/davinci-evm.c
index 2f8161c1d5f0..623eb5e7c089 100644
--- a/sound/soc/davinci/davinci-evm.c
+++ b/sound/soc/davinci/davinci-evm.c
@@ -16,6 +16,7 @@
 #include <linux/platform_device.h>
 #include <linux/platform_data/edma.h>
 #include <linux/i2c.h>
+#include <linux/of_platform.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/soc.h>
@@ -23,6 +24,8 @@
 #include <asm/dma.h>
 #include <asm/mach-types.h>
 
+#include <linux/edma.h>
+
 #include "davinci-pcm.h"
 #include "davinci-i2s.h"
 #include "davinci-mcasp.h"
@@ -121,13 +124,22 @@ static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_codec *codec = rtd->codec;
 	struct snd_soc_dapm_context *dapm = &codec->dapm;
+	struct device_node *np = codec->card->dev->of_node;
+	int ret;
 
 	/* Add davinci-evm specific widgets */
 	snd_soc_dapm_new_controls(dapm, aic3x_dapm_widgets,
 				  ARRAY_SIZE(aic3x_dapm_widgets));
 
-	/* Set up davinci-evm specific audio path audio_map */
-	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
+	if (np) {
+		ret = snd_soc_of_parse_audio_routing(codec->card,
+							"ti,audio-routing");
+		if (ret)
+			return ret;
+	} else {
+		/* Set up davinci-evm specific audio path audio_map */
+		snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
+	}
 
 	/* not connected */
 	snd_soc_dapm_disable_pin(dapm, "MONO_LOUT");
@@ -312,6 +324,98 @@ static struct snd_soc_card da850_snd_soc_card = {
 	.drvdata = &da850_snd_soc_card_drvdata,
 };
 
+#if defined(CONFIG_OF)
+
+/*
+ * The struct is used as place holder. It will be completely
+ * filled with data from dt node.
+ */
+static struct snd_soc_dai_link evm_dai_tlv320aic3x = {
+	.name		= "TLV320AIC3X",
+	.stream_name	= "AIC3X",
+	.codec_dai_name	= "tlv320aic3x-hifi",
+	.ops            = &evm_ops,
+	.init           = evm_aic3x_init,
+};
+
+static const struct of_device_id davinci_evm_dt_ids[] = {
+	{
+		.compatible = "ti,da830-evm-audio",
+		.data = (void *) &evm_dai_tlv320aic3x,
+	},
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, davinci_evm_dt_ids);
+
+/* davinci evm audio machine driver */
+static struct snd_soc_card evm_soc_card = {
+	.owner = THIS_MODULE,
+	.num_links = 1,
+};
+
+static int davinci_evm_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	const struct of_device_id *match =
+		of_match_device(of_match_ptr(davinci_evm_dt_ids), &pdev->dev);
+	struct snd_soc_dai_link *dai = (struct snd_soc_dai_link *) match->data;
+	struct snd_soc_card_drvdata_davinci *drvdata = NULL;
+	int ret = 0;
+
+	evm_soc_card.dai_link = dai;
+
+	dai->codec_of_node = of_parse_phandle(np, "ti,audio-codec", 0);
+	if (!dai->codec_of_node)
+		return -EINVAL;
+
+	dai->cpu_of_node = of_parse_phandle(np, "ti,mcasp-controller", 0);
+	if (!dai->cpu_of_node)
+		return -EINVAL;
+
+	dai->platform_of_node = dai->cpu_of_node;
+
+	evm_soc_card.dev = &pdev->dev;
+	ret = snd_soc_of_parse_card_name(&evm_soc_card, "ti,model");
+	if (ret)
+		return ret;
+
+	drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL);
+	if (!drvdata)
+		return -ENOMEM;
+
+	ret = of_property_read_u32(np, "ti,codec-clock-rate", &drvdata->sysclk);
+	if (ret < 0)
+		return -EINVAL;
+
+	snd_soc_card_set_drvdata(&evm_soc_card, drvdata);
+	ret = devm_snd_soc_register_card(&pdev->dev, &evm_soc_card);
+
+	if (ret)
+		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
+
+	return ret;
+}
+
+static int davinci_evm_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+	snd_soc_unregister_card(card);
+
+	return 0;
+}
+
+static struct platform_driver davinci_evm_driver = {
+	.probe		= davinci_evm_probe,
+	.remove		= davinci_evm_remove,
+	.driver		= {
+		.name	= "davinci_evm",
+		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(davinci_evm_dt_ids),
+	},
+};
+#endif
+
 static struct platform_device *evm_snd_device;
 
 static int __init evm_init(void)
@@ -320,6 +424,15 @@ static int __init evm_init(void)
 	int index;
 	int ret;
 
+	/*
+	 * If dtb is there, the devices will be created dynamically.
+	 * Only register platfrom driver structure.
+	 */
+#if defined(CONFIG_OF)
+	if (of_have_populated_dt())
+		return platform_driver_register(&davinci_evm_driver);
+#endif
+
 	if (machine_is_davinci_evm()) {
 		evm_snd_dev_data = &dm6446_snd_soc_card_evm;
 		index = 0;
@@ -355,6 +468,13 @@ static int __init evm_init(void)
 
 static void __exit evm_exit(void)
 {
+#if defined(CONFIG_OF)
+	if (of_have_populated_dt()) {
+		platform_driver_unregister(&davinci_evm_driver);
+		return;
+	}
+#endif
+
 	platform_device_unregister(evm_snd_device);
 }
 
-- 
cgit 


From f95a48834cb9c581eec952215666a323136f339f Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@debian.org>
Date: Wed, 23 Oct 2013 14:03:28 +0200
Subject: ASoC: tpa6130a2: Add device tree support

Add device tree support to tpa6130a2 driver and document the
bindings.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 .../devicetree/bindings/sound/tpa6130a2.txt        | 27 ++++++++++++++++++
 sound/soc/codecs/tpa6130a2.c                       | 32 ++++++++++++++++------
 2 files changed, 50 insertions(+), 9 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/sound/tpa6130a2.txt

diff --git a/Documentation/devicetree/bindings/sound/tpa6130a2.txt b/Documentation/devicetree/bindings/sound/tpa6130a2.txt
new file mode 100644
index 000000000000..6dfa740e4b2d
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/tpa6130a2.txt
@@ -0,0 +1,27 @@
+Texas Instruments - tpa6130a2 Codec module
+
+The tpa6130a2 serial control bus communicates through I2C protocols
+
+Required properties:
+
+- compatible - "string" - One of:
+    "ti,tpa6130a2" - TPA6130A2
+    "ti,tpa6140a2" - TPA6140A2
+
+
+- reg - <int> -  I2C slave address
+
+- Vdd-supply - <phandle> - power supply regulator
+
+Optional properties:
+
+- power-gpio - gpio pin to power the device
+
+Example:
+
+tpa6130a2: tpa6130a2@60 {
+	compatible = "ti,tpa6130a2";
+	reg = <0x60>;
+	Vdd-supply = <&vmmc2>;
+	power-gpio = <&gpio4 2 GPIO_ACTIVE_HIGH>;
+};
diff --git a/sound/soc/codecs/tpa6130a2.c b/sound/soc/codecs/tpa6130a2.c
index c58bee8346ce..998555f2a8aa 100644
--- a/sound/soc/codecs/tpa6130a2.c
+++ b/sound/soc/codecs/tpa6130a2.c
@@ -30,6 +30,7 @@
 #include <sound/tpa6130a2-plat.h>
 #include <sound/soc.h>
 #include <sound/tlv.h>
+#include <linux/of_gpio.h>
 
 #include "tpa6130a2.h"
 
@@ -364,30 +365,33 @@ static int tpa6130a2_probe(struct i2c_client *client,
 {
 	struct device *dev;
 	struct tpa6130a2_data *data;
-	struct tpa6130a2_platform_data *pdata;
+	struct tpa6130a2_platform_data *pdata = client->dev.platform_data;
+	struct device_node *np = client->dev.of_node;
 	const char *regulator;
 	int ret;
 
 	dev = &client->dev;
 
-	if (client->dev.platform_data == NULL) {
-		dev_err(dev, "Platform data not set\n");
-		dump_stack();
-		return -ENODEV;
-	}
-
 	data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
 	if (data == NULL) {
 		dev_err(dev, "Can not allocate memory\n");
 		return -ENOMEM;
 	}
 
+	if (pdata) {
+		data->power_gpio = pdata->power_gpio;
+	} else if (np) {
+		data->power_gpio = of_get_named_gpio(np, "power-gpio", 0);
+	} else {
+		dev_err(dev, "Platform data not set\n");
+		dump_stack();
+		return -ENODEV;
+	}
+
 	tpa6130a2_client = client;
 
 	i2c_set_clientdata(tpa6130a2_client, data);
 
-	pdata = client->dev.platform_data;
-	data->power_gpio = pdata->power_gpio;
 	data->id = id->driver_data;
 
 	mutex_init(&data->mutex);
@@ -466,10 +470,20 @@ static const struct i2c_device_id tpa6130a2_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, tpa6130a2_id);
 
+#if IS_ENABLED(CONFIG_OF)
+static const struct of_device_id tpa6130a2_of_match[] = {
+	{ .compatible = "ti,tpa6130a2", },
+	{ .compatible = "ti,tpa6140a2" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, tpa6130a2_of_match);
+#endif
+
 static struct i2c_driver tpa6130a2_i2c_driver = {
 	.driver = {
 		.name = "tpa6130a2",
 		.owner = THIS_MODULE,
+		.of_match_table = of_match_ptr(tpa6130a2_of_match),
 	},
 	.probe = tpa6130a2_probe,
 	.remove = tpa6130a2_remove,
-- 
cgit 


From 2ab61fa04722d74df1154c6a03e6eb8923b22ab0 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Tue, 22 Oct 2013 05:49:00 +0100
Subject: staging/iio/adc: MXS_LRADC depends on INPUT

mxs-lradc.c uses many input_() functions so it should
depend on INPUT to fix build errors.

drivers/built-in.o: In function `mxs_lradc_ts_unregister':
drivers/staging/iio/adc/mxs-lradc.c:905: undefined reference to `input_unregister_device'
drivers/staging/iio/adc/mxs-lradc.c:905: undefined reference to `input_unregister_device'
drivers/built-in.o: In function `input_report_abs':
include/linux/input.h:399: undefined reference to `input_event'
include/linux/input.h:399: undefined reference to `input_event'
include/linux/input.h:399: undefined reference to `input_event'
drivers/built-in.o: In function `input_report_key':
include/linux/input.h:389: undefined reference to `input_event'
drivers/built-in.o: In function `input_sync':
include/linux/input.h:414: undefined reference to `input_event'
drivers/built-in.o:include/linux/input.h:389: more undefined references to `input_event' follow

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/adc/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig
index 1cf476484d77..e3d643001952 100644
--- a/drivers/staging/iio/adc/Kconfig
+++ b/drivers/staging/iio/adc/Kconfig
@@ -114,6 +114,7 @@ config LPC32XX_ADC
 config MXS_LRADC
 	tristate "Freescale i.MX23/i.MX28 LRADC"
 	depends on ARCH_MXS || COMPILE_TEST
+	depends on INPUT
 	select STMP_DEVICE
 	select IIO_BUFFER
 	select IIO_TRIGGERED_BUFFER
-- 
cgit 


From 39631b5f9584672d0b7de92619f85a113837600b Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Mon, 21 Oct 2013 21:53:00 +0100
Subject: iio: Add Freescale mag3110 magnetometer driver

three-axis digital magnetometer with I2C interface

datasheet is available from
http://cache.freescale.com/files/sensors/doc/data_sheet/MAG3110.pdf

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/magnetometer/Kconfig   |  10 +
 drivers/iio/magnetometer/Makefile  |   1 +
 drivers/iio/magnetometer/mag3110.c | 401 +++++++++++++++++++++++++++++++++++++
 3 files changed, 412 insertions(+)
 create mode 100644 drivers/iio/magnetometer/mag3110.c

diff --git a/drivers/iio/magnetometer/Kconfig b/drivers/iio/magnetometer/Kconfig
index 4fa923f37b97..0cf09637b35b 100644
--- a/drivers/iio/magnetometer/Kconfig
+++ b/drivers/iio/magnetometer/Kconfig
@@ -16,6 +16,16 @@ config AK8975
 	  To compile this driver as a module, choose M here: the module
 	  will be called ak8975.
 
+config MAG3110
+	tristate "Freescale MAG3110 3-Axis Magnetometer"
+	depends on I2C
+	help
+	  Say yes here to build support for the Freescale MAG3110 3-Axis
+	  magnetometer.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called mag3110.
+
 config HID_SENSOR_MAGNETOMETER_3D
 	depends on HID_SENSOR_HUB
 	select IIO_BUFFER
diff --git a/drivers/iio/magnetometer/Makefile b/drivers/iio/magnetometer/Makefile
index f91b1b68d392..0f5d3c985799 100644
--- a/drivers/iio/magnetometer/Makefile
+++ b/drivers/iio/magnetometer/Makefile
@@ -4,6 +4,7 @@
 
 # When adding new entries keep the list in alphabetical order
 obj-$(CONFIG_AK8975)	+= ak8975.o
+obj-$(CONFIG_MAG3110)	+= mag3110.o
 obj-$(CONFIG_HID_SENSOR_MAGNETOMETER_3D) += hid-sensor-magn-3d.o
 
 obj-$(CONFIG_IIO_ST_MAGN_3AXIS) += st_magn.o
diff --git a/drivers/iio/magnetometer/mag3110.c b/drivers/iio/magnetometer/mag3110.c
new file mode 100644
index 000000000000..783c5b417356
--- /dev/null
+++ b/drivers/iio/magnetometer/mag3110.c
@@ -0,0 +1,401 @@
+/*
+ * mag3110.c - Support for Freescale MAG3110 magnetometer sensor
+ *
+ * Copyright (c) 2013 Peter Meerwald <pmeerw@pmeerw.net>
+ *
+ * This file is subject to the terms and conditions of version 2 of
+ * the GNU General Public License.  See the file COPYING in the main
+ * directory of this archive for more details.
+ *
+ * (7-bit I2C slave address 0x0e)
+ *
+ * TODO: irq, user offset, oversampling, continuous mode
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/sysfs.h>
+#include <linux/iio/trigger_consumer.h>
+#include <linux/iio/buffer.h>
+#include <linux/iio/triggered_buffer.h>
+#include <linux/delay.h>
+
+#define MAG3110_STATUS 0x00
+#define MAG3110_OUT_X 0x01 /* MSB first */
+#define MAG3110_OUT_Y 0x03
+#define MAG3110_OUT_Z 0x05
+#define MAG3110_WHO_AM_I 0x07
+#define MAG3110_OFF_X 0x09 /* MSB first */
+#define MAG3110_OFF_Y 0x0b
+#define MAG3110_OFF_Z 0x0d
+#define MAG3110_DIE_TEMP 0x0f
+#define MAG3110_CTRL_REG1 0x10
+#define MAG3110_CTRL_REG2 0x11
+
+#define MAG3110_STATUS_DRDY (BIT(2) | BIT(1) | BIT(0))
+
+#define MAG3110_CTRL_DR_MASK (BIT(7) | BIT(6) | BIT(5))
+#define MAG3110_CTRL_DR_SHIFT 5
+#define MAG3110_CTRL_DR_DEFAULT 0
+
+#define MAG3110_CTRL_TM BIT(1) /* trigger single measurement */
+#define MAG3110_CTRL_AC BIT(0) /* continuous measurements */
+
+#define MAG3110_CTRL_AUTO_MRST_EN BIT(7) /* magnetic auto-reset */
+#define MAG3110_CTRL_RAW BIT(5) /* measurements not user-offset corrected */
+
+#define MAG3110_DEVICE_ID 0xc4
+
+/* Each client has this additional data */
+struct mag3110_data {
+	struct i2c_client *client;
+	struct mutex lock;
+	u8 ctrl_reg1;
+};
+
+static int mag3110_request(struct mag3110_data *data)
+{
+	int ret, tries = 150;
+
+	/* trigger measurement */
+	ret = i2c_smbus_write_byte_data(data->client, MAG3110_CTRL_REG1,
+		data->ctrl_reg1 | MAG3110_CTRL_TM);
+	if (ret < 0)
+		return ret;
+
+	while (tries-- > 0) {
+		ret = i2c_smbus_read_byte_data(data->client, MAG3110_STATUS);
+		if (ret < 0)
+			return ret;
+		/* wait for data ready */
+		if ((ret & MAG3110_STATUS_DRDY) == MAG3110_STATUS_DRDY)
+			break;
+		msleep(20);
+	}
+
+	if (tries < 0) {
+		dev_err(&data->client->dev, "data not ready\n");
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int mag3110_read(struct mag3110_data *data, __be16 buf[3])
+{
+	int ret;
+
+	mutex_lock(&data->lock);
+	ret = mag3110_request(data);
+	if (ret < 0) {
+		mutex_unlock(&data->lock);
+		return ret;
+	}
+	ret = i2c_smbus_read_i2c_block_data(data->client,
+		MAG3110_OUT_X, 3 * sizeof(__be16), (u8 *) buf);
+	mutex_unlock(&data->lock);
+
+	return ret;
+}
+
+static ssize_t mag3110_show_int_plus_micros(char *buf,
+	const int (*vals)[2], int n)
+{
+	size_t len = 0;
+
+	while (n-- > 0)
+		len += scnprintf(buf + len, PAGE_SIZE - len,
+			"%d.%d ", vals[n][0], vals[n][1]);
+
+	/* replace trailing space by newline */
+	buf[len - 1] = '\n';
+
+	return len;
+}
+
+static int mag3110_get_int_plus_micros_index(const int (*vals)[2], int n,
+					int val, int val2)
+{
+	while (n-- > 0)
+		if (val == vals[n][0] && val2 == vals[n][1])
+			return n;
+
+	return -EINVAL;
+}
+
+static const int mag3110_samp_freq[8][2] = {
+	{80, 0}, {40, 0}, {20, 0}, {10, 0}, {5, 0}, {2, 500000},
+	{1, 250000}, {0, 625000}
+};
+
+static ssize_t mag3110_show_samp_freq_avail(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	return mag3110_show_int_plus_micros(buf, mag3110_samp_freq, 8);
+}
+
+static IIO_DEV_ATTR_SAMP_FREQ_AVAIL(mag3110_show_samp_freq_avail);
+
+static int mag3110_get_samp_freq_index(struct mag3110_data *data,
+	int val, int val2)
+{
+	return mag3110_get_int_plus_micros_index(mag3110_samp_freq, 8, val,
+		val2);
+}
+
+static int mag3110_read_raw(struct iio_dev *indio_dev,
+			    struct iio_chan_spec const *chan,
+			    int *val, int *val2, long mask)
+{
+	struct mag3110_data *data = iio_priv(indio_dev);
+	__be16 buffer[3];
+	int i, ret;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_RAW:
+		switch (chan->type) {
+		case IIO_MAGN: /* in 0.1 uT / LSB */
+			ret = mag3110_read(data, buffer);
+			if (ret < 0)
+				return ret;
+			*val = sign_extend32(
+				be16_to_cpu(buffer[chan->scan_index]), 15);
+			return IIO_VAL_INT;
+		case IIO_TEMP: /* in 1 C / LSB */
+			mutex_lock(&data->lock);
+			ret = mag3110_request(data);
+			if (ret < 0) {
+				mutex_unlock(&data->lock);
+				return ret;
+			}
+			ret = i2c_smbus_read_byte_data(data->client,
+				MAG3110_DIE_TEMP);
+			mutex_unlock(&data->lock);
+			if (ret < 0)
+				return ret;
+			*val = sign_extend32(ret, 7);
+			return IIO_VAL_INT;
+		default:
+			return -EINVAL;
+		}
+	case IIO_CHAN_INFO_SCALE:
+		*val = 0;
+		*val2 = 1000;
+		return IIO_VAL_INT_PLUS_MICRO;
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		i = data->ctrl_reg1 >> MAG3110_CTRL_DR_SHIFT;
+		*val = mag3110_samp_freq[i][0];
+		*val2 = mag3110_samp_freq[i][1];
+		return IIO_VAL_INT_PLUS_MICRO;
+	}
+	return -EINVAL;
+}
+
+static int mag3110_write_raw(struct iio_dev *indio_dev,
+			     struct iio_chan_spec const *chan,
+			     int val, int val2, long mask)
+{
+	struct mag3110_data *data = iio_priv(indio_dev);
+	int rate;
+
+	switch (mask) {
+	case IIO_CHAN_INFO_SAMP_FREQ:
+		rate = mag3110_get_samp_freq_index(data, val, val2);
+		if (rate < 0)
+			return -EINVAL;
+
+		data->ctrl_reg1 &= ~MAG3110_CTRL_DR_MASK;
+		data->ctrl_reg1 |= rate << MAG3110_CTRL_DR_SHIFT;
+		return i2c_smbus_write_byte_data(data->client,
+			MAG3110_CTRL_REG1, data->ctrl_reg1);
+	default:
+		return -EINVAL;
+	}
+}
+
+static irqreturn_t mag3110_trigger_handler(int irq, void *p)
+{
+	struct iio_poll_func *pf = p;
+	struct iio_dev *indio_dev = pf->indio_dev;
+	struct mag3110_data *data = iio_priv(indio_dev);
+	u8 buffer[16]; /* 3 16-bit channels + 1 byte temp + padding + ts */
+	int ret;
+
+	ret = mag3110_read(data, (__be16 *) buffer);
+	if (ret < 0)
+		goto done;
+
+	if (test_bit(3, indio_dev->active_scan_mask)) {
+		ret = i2c_smbus_read_byte_data(data->client,
+			MAG3110_DIE_TEMP);
+		if (ret < 0)
+			goto done;
+		buffer[6] = ret;
+	}
+
+	iio_push_to_buffers_with_timestamp(indio_dev, buffer,
+		iio_get_time_ns());
+
+done:
+	iio_trigger_notify_done(indio_dev->trig);
+	return IRQ_HANDLED;
+}
+
+#define MAG3110_CHANNEL(axis, idx) { \
+	.type = IIO_MAGN, \
+	.modified = 1, \
+	.channel2 = IIO_MOD_##axis, \
+	.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
+	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SAMP_FREQ) | \
+		BIT(IIO_CHAN_INFO_SCALE), \
+	.scan_index = idx, \
+	.scan_type = IIO_ST('s', 16, 16, IIO_BE), \
+}
+
+static const struct iio_chan_spec mag3110_channels[] = {
+	MAG3110_CHANNEL(X, 0),
+	MAG3110_CHANNEL(Y, 1),
+	MAG3110_CHANNEL(Z, 2),
+	{
+		.type = IIO_TEMP,
+		.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
+		.scan_index = 3,
+		.scan_type = IIO_ST('s', 8, 8, 0),
+	},
+	IIO_CHAN_SOFT_TIMESTAMP(4),
+};
+
+static struct attribute *mag3110_attributes[] = {
+	&iio_dev_attr_sampling_frequency_available.dev_attr.attr,
+	NULL
+};
+
+static const struct attribute_group mag3110_group = {
+	.attrs = mag3110_attributes,
+};
+
+static const struct iio_info mag3110_info = {
+	.attrs = &mag3110_group,
+	.read_raw = &mag3110_read_raw,
+	.write_raw = &mag3110_write_raw,
+	.driver_module = THIS_MODULE,
+};
+
+static const unsigned long mag3110_scan_masks[] = {0x7, 0xf, 0};
+
+static int mag3110_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct mag3110_data *data;
+	struct iio_dev *indio_dev;
+	int ret;
+
+	ret = i2c_smbus_read_byte_data(client, MAG3110_WHO_AM_I);
+	if (ret < 0)
+		return ret;
+	if (ret != MAG3110_DEVICE_ID)
+		return -ENODEV;
+
+	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
+	if (!indio_dev)
+		return -ENOMEM;
+
+	data = iio_priv(indio_dev);
+	data->client = client;
+	mutex_init(&data->lock);
+
+	i2c_set_clientdata(client, indio_dev);
+	indio_dev->info = &mag3110_info;
+	indio_dev->name = id->name;
+	indio_dev->dev.parent = &client->dev;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->channels = mag3110_channels;
+	indio_dev->num_channels = ARRAY_SIZE(mag3110_channels);
+	indio_dev->available_scan_masks = mag3110_scan_masks;
+
+	data->ctrl_reg1 = MAG3110_CTRL_DR_DEFAULT;
+	ret = i2c_smbus_write_byte_data(client, MAG3110_CTRL_REG1,
+		data->ctrl_reg1);
+	if (ret < 0)
+		return ret;
+
+	ret = i2c_smbus_write_byte_data(client, MAG3110_CTRL_REG2,
+		MAG3110_CTRL_AUTO_MRST_EN | MAG3110_CTRL_RAW);
+	if (ret < 0)
+		return ret;
+
+	ret = iio_triggered_buffer_setup(indio_dev, NULL,
+		mag3110_trigger_handler, NULL);
+	if (ret < 0)
+		return ret;
+
+	ret = iio_device_register(indio_dev);
+	if (ret < 0)
+		goto buffer_cleanup;
+	return 0;
+
+buffer_cleanup:
+	iio_triggered_buffer_cleanup(indio_dev);
+	return ret;
+}
+
+static int mag3110_standby(struct mag3110_data *data)
+{
+	return i2c_smbus_write_byte_data(data->client, MAG3110_CTRL_REG1,
+		data->ctrl_reg1 & ~MAG3110_CTRL_AC);
+}
+
+static int mag3110_remove(struct i2c_client *client)
+{
+	struct iio_dev *indio_dev = i2c_get_clientdata(client);
+
+	iio_device_unregister(indio_dev);
+	iio_triggered_buffer_cleanup(indio_dev);
+	mag3110_standby(iio_priv(indio_dev));
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int mag3110_suspend(struct device *dev)
+{
+	return mag3110_standby(iio_priv(i2c_get_clientdata(
+		to_i2c_client(dev))));
+}
+
+static int mag3110_resume(struct device *dev)
+{
+	struct mag3110_data *data = iio_priv(i2c_get_clientdata(
+		to_i2c_client(dev)));
+
+	return i2c_smbus_write_byte_data(data->client, MAG3110_CTRL_REG1,
+		data->ctrl_reg1);
+}
+
+static SIMPLE_DEV_PM_OPS(mag3110_pm_ops, mag3110_suspend, mag3110_resume);
+#define MAG3110_PM_OPS (&mag3110_pm_ops)
+#else
+#define MAG3110_PM_OPS NULL
+#endif
+
+static const struct i2c_device_id mag3110_id[] = {
+	{ "mag3110", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, mag3110_id);
+
+static struct i2c_driver mag3110_driver = {
+	.driver = {
+		.name	= "mag3110",
+		.pm	= MAG3110_PM_OPS,
+	},
+	.probe = mag3110_probe,
+	.remove = mag3110_remove,
+	.id_table = mag3110_id,
+};
+module_i2c_driver(mag3110_driver);
+
+MODULE_AUTHOR("Peter Meerwald <pmeerw@pmeerw.net>");
+MODULE_DESCRIPTION("Freescale MAG3110 magnetometer driver");
+MODULE_LICENSE("GPL");
-- 
cgit 


From fc21acc471d30ecb2c594400c613ed0d56a8a457 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 21 Oct 2013 09:25:00 +0100
Subject: iio: adc: twl6030-gpadc: Remove redundant of_match_ptr

of_twl6030_match_tbl is always compiled in. Hence of_match_ptr is
not necessary.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/twl6030-gpadc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/twl6030-gpadc.c b/drivers/iio/adc/twl6030-gpadc.c
index 0ea96c058c08..2edfc7bd4f63 100644
--- a/drivers/iio/adc/twl6030-gpadc.c
+++ b/drivers/iio/adc/twl6030-gpadc.c
@@ -887,7 +887,7 @@ static int twl6030_gpadc_probe(struct platform_device *pdev)
 	int irq;
 	int ret;
 
-	match = of_match_device(of_match_ptr(of_twl6030_match_tbl), dev);
+	match = of_match_device(of_twl6030_match_tbl, dev);
 	if (!match)
 		return -EINVAL;
 
-- 
cgit 


From d453a4ab112fdb7a2ccedea26eb192faf74c1ff1 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 21 Oct 2013 10:27:00 +0100
Subject: iio: adc: nau7802: Remove redundant of_match_ptr

nau7802_dt_ids is always compiled in. Hence of_match_ptr is not
needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/nau7802.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/nau7802.c b/drivers/iio/adc/nau7802.c
index adff9cbbcbc4..54c5babe6746 100644
--- a/drivers/iio/adc/nau7802.c
+++ b/drivers/iio/adc/nau7802.c
@@ -570,7 +570,7 @@ static struct i2c_driver nau7802_driver = {
 	.id_table = nau7802_i2c_id,
 	.driver = {
 		   .name = "nau7802",
-		   .of_match_table = of_match_ptr(nau7802_dt_ids),
+		   .of_match_table = nau7802_dt_ids,
 	},
 };
 
-- 
cgit 


From de06b344acd57b206796ef86f66a53f72e10be0b Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 21 Oct 2013 10:27:00 +0100
Subject: iio: adc: ti_am335x_adc: Remove redundant of_match_ptr

ti_adc_dt_ids is always compiled in. Hence of_match_ptr is not
needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ti_am335x_adc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index ef54d8a588d2..728411ec7642 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -515,7 +515,7 @@ static struct platform_driver tiadc_driver = {
 		.name   = "TI-am335x-adc",
 		.owner	= THIS_MODULE,
 		.pm	= TIADC_PM_OPS,
-		.of_match_table = of_match_ptr(ti_adc_dt_ids),
+		.of_match_table = ti_adc_dt_ids,
 	},
 	.probe	= tiadc_probe,
 	.remove	= tiadc_remove,
-- 
cgit 


From d141ab776b670a0c9ac46b174f4c207a81f89f60 Mon Sep 17 00:00:00 2001
From: Denis CIOCCA <denis.ciocca@st.com>
Date: Tue, 22 Oct 2013 19:32:00 +0100
Subject: iio:pressure: Adds LPS001WP support also on spi interface and Kconfig
 fix

Signed-off-by: Denis Ciocca <denis.ciocca@st.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/pressure/Kconfig           | 2 +-
 drivers/iio/pressure/st_pressure_spi.c | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/pressure/Kconfig b/drivers/iio/pressure/Kconfig
index 26fdc0bdb99d..4f2e0f9bad8c 100644
--- a/drivers/iio/pressure/Kconfig
+++ b/drivers/iio/pressure/Kconfig
@@ -14,7 +14,7 @@ config IIO_ST_PRESS
 	select IIO_TRIGGERED_BUFFER if (IIO_BUFFER)
 	help
 	  Say yes here to build support for STMicroelectronics pressure
-	  sensors: LPS331AP.
+	  sensors: LPS001WP, LPS331AP.
 
 	  This driver can also be built as a module. If so, these modules
 	  will be created:
diff --git a/drivers/iio/pressure/st_pressure_spi.c b/drivers/iio/pressure/st_pressure_spi.c
index 399a29b6017b..27322af6d665 100644
--- a/drivers/iio/pressure/st_pressure_spi.c
+++ b/drivers/iio/pressure/st_pressure_spi.c
@@ -48,6 +48,7 @@ static int st_press_spi_remove(struct spi_device *spi)
 }
 
 static const struct spi_device_id st_press_id_table[] = {
+	{ LPS001WP_PRESS_DEV_NAME },
 	{ LPS331AP_PRESS_DEV_NAME },
 	{},
 };
-- 
cgit 


From 4b3db708b114fc35ff1e0cd28a2bfb1490dbb5d3 Mon Sep 17 00:00:00 2001
From: "Chen, Gong" <gong.chen@linux.intel.com>
Date: Mon, 21 Oct 2013 14:29:25 -0700
Subject: ACPI, x86: Extended error log driver for x86 platform

This H/W error log driver (a.k.a eMCA driver) is implemented based on
http://www.intel.com/content/www/us/en/architecture-and-technology/enhanced-mca-logging-xeon-paper.html

After errors are captured, more detailed platform specific information
can be got via this new enhanced H/W error log driver. Most notably we
can track memory errors back to the DIMM slot silk screen label.

Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
 arch/x86/include/asm/mce.h |   1 +
 drivers/acpi/Kconfig       |  19 +++
 drivers/acpi/Makefile      |   2 +
 drivers/acpi/acpi_extlog.c | 327 +++++++++++++++++++++++++++++++++++++++++++++
 drivers/acpi/bus.c         |   3 +-
 include/linux/acpi.h       |   1 +
 6 files changed, 352 insertions(+), 1 deletion(-)
 create mode 100644 drivers/acpi/acpi_extlog.c

diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h
index cbe6b9e404ce..c696a8687567 100644
--- a/arch/x86/include/asm/mce.h
+++ b/arch/x86/include/asm/mce.h
@@ -16,6 +16,7 @@
 #define MCG_EXT_CNT_SHIFT	16
 #define MCG_EXT_CNT(c)		(((c) & MCG_EXT_CNT_MASK) >> MCG_EXT_CNT_SHIFT)
 #define MCG_SER_P		(1ULL<<24)   /* MCA recovery/new status bits */
+#define MCG_ELOG_P		(1ULL<<26)   /* Extended error log supported */
 
 /* MCG_STATUS register defines */
 #define MCG_STATUS_RIPV  (1ULL<<0)   /* restart ip valid */
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 6efe2ac6902f..252f0e818a49 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -372,4 +372,23 @@ config ACPI_BGRT
 
 source "drivers/acpi/apei/Kconfig"
 
+config ACPI_EXTLOG
+	tristate "Extended Error Log support"
+	depends on X86_MCE && ACPI_APEI
+	default n
+	help
+	  Certain usages such as Predictive Failure Analysis (PFA) require
+	  more information about the error than what can be described in
+	  processor machine check banks. Most server processors log
+	  additional information about the error in processor uncore
+	  registers. Since the addresses and layout of these registers vary
+	  widely from one processor to another, system software cannot
+	  readily make use of them. To complicate matters further, some of
+	  the additional error information cannot be constructed without
+	  detailed knowledge about platform topology.
+
+	  Enhanced MCA Logging allows firmware to provide additional error
+	  information to system software, synchronous with MCE or CMCI. This
+	  driver adds support for that functionality.
+
 endif	# ACPI
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index cdaf68b58b00..bce34afadcd0 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -82,3 +82,5 @@ processor-$(CONFIG_CPU_FREQ)	+= processor_perflib.o
 obj-$(CONFIG_ACPI_PROCESSOR_AGGREGATOR) += acpi_pad.o
 
 obj-$(CONFIG_ACPI_APEI)		+= apei/
+
+obj-$(CONFIG_ACPI_EXTLOG)	+= acpi_extlog.o
diff --git a/drivers/acpi/acpi_extlog.c b/drivers/acpi/acpi_extlog.c
new file mode 100644
index 000000000000..a6869e110ce5
--- /dev/null
+++ b/drivers/acpi/acpi_extlog.c
@@ -0,0 +1,327 @@
+/*
+ * Extended Error Log driver
+ *
+ * Copyright (C) 2013 Intel Corp.
+ * Author: Chen, Gong <gong.chen@intel.com>
+ *
+ * This file is licensed under GPLv2.
+ */
+
+#include <linux/module.h>
+#include <linux/acpi.h>
+#include <acpi/acpi_bus.h>
+#include <linux/cper.h>
+#include <linux/ratelimit.h>
+#include <asm/cpu.h>
+#include <asm/mce.h>
+
+#include "apei/apei-internal.h"
+
+#define EXT_ELOG_ENTRY_MASK	GENMASK_ULL(51, 0) /* elog entry address mask */
+
+#define EXTLOG_DSM_REV		0x0
+#define	EXTLOG_FN_QUERY		0x0
+#define	EXTLOG_FN_ADDR		0x1
+
+#define FLAG_OS_OPTIN		BIT(0)
+#define EXTLOG_QUERY_L1_EXIST	BIT(1)
+#define ELOG_ENTRY_VALID	(1ULL<<63)
+#define ELOG_ENTRY_LEN		0x1000
+
+#define EMCA_BUG \
+	"Can not request iomem region <0x%016llx-0x%016llx> - eMCA disabled\n"
+
+struct extlog_l1_head {
+	u32 ver;	/* Header Version */
+	u32 hdr_len;	/* Header Length */
+	u64 total_len;	/* entire L1 Directory length including this header */
+	u64 elog_base;	/* MCA Error Log Directory base address */
+	u64 elog_len;	/* MCA Error Log Directory length */
+	u32 flags;	/* bit 0 - OS/VMM Opt-in */
+	u8  rev0[12];
+	u32 entries;	/* Valid L1 Directory entries per logical processor */
+	u8  rev1[12];
+};
+
+static u8 extlog_dsm_uuid[] = "663E35AF-CC10-41A4-88EA-5470AF055295";
+
+/* L1 table related physical address */
+static u64 elog_base;
+static size_t elog_size;
+static u64 l1_dirbase;
+static size_t l1_size;
+
+/* L1 table related virtual address */
+static void __iomem *extlog_l1_addr;
+static void __iomem *elog_addr;
+
+static void *elog_buf;
+
+static u64 *l1_entry_base;
+static u32 l1_percpu_entry;
+
+#define ELOG_IDX(cpu, bank) \
+	(cpu_physical_id(cpu) * l1_percpu_entry + (bank))
+
+#define ELOG_ENTRY_DATA(idx) \
+	(*(l1_entry_base + (idx)))
+
+#define ELOG_ENTRY_ADDR(phyaddr) \
+	(phyaddr - elog_base + (u8 *)elog_addr)
+
+static struct acpi_generic_status *extlog_elog_entry_check(int cpu, int bank)
+{
+	int idx;
+	u64 data;
+	struct acpi_generic_status *estatus;
+
+	WARN_ON(cpu < 0);
+	idx = ELOG_IDX(cpu, bank);
+	data = ELOG_ENTRY_DATA(idx);
+	if ((data & ELOG_ENTRY_VALID) == 0)
+		return NULL;
+
+	data &= EXT_ELOG_ENTRY_MASK;
+	estatus = (struct acpi_generic_status *)ELOG_ENTRY_ADDR(data);
+
+	/* if no valid data in elog entry, just return */
+	if (estatus->block_status == 0)
+		return NULL;
+
+	return estatus;
+}
+
+static void __print_extlog_rcd(const char *pfx,
+			       struct acpi_generic_status *estatus, int cpu)
+{
+	static atomic_t seqno;
+	unsigned int curr_seqno;
+	char pfx_seq[64];
+
+	if (!pfx) {
+		if (estatus->error_severity <= CPER_SEV_CORRECTED)
+			pfx = KERN_INFO;
+		else
+			pfx = KERN_ERR;
+	}
+	curr_seqno = atomic_inc_return(&seqno);
+	snprintf(pfx_seq, sizeof(pfx_seq), "%s{%u}", pfx, curr_seqno);
+	printk("%s""Hardware error detected on CPU%d\n", pfx_seq, cpu);
+	cper_estatus_print(pfx_seq, estatus);
+}
+
+static int print_extlog_rcd(const char *pfx,
+			    struct acpi_generic_status *estatus, int cpu)
+{
+	/* Not more than 2 messages every 5 seconds */
+	static DEFINE_RATELIMIT_STATE(ratelimit_corrected, 5*HZ, 2);
+	static DEFINE_RATELIMIT_STATE(ratelimit_uncorrected, 5*HZ, 2);
+	struct ratelimit_state *ratelimit;
+
+	if (estatus->error_severity == CPER_SEV_CORRECTED ||
+	    (estatus->error_severity == CPER_SEV_INFORMATIONAL))
+		ratelimit = &ratelimit_corrected;
+	else
+		ratelimit = &ratelimit_uncorrected;
+	if (__ratelimit(ratelimit)) {
+		__print_extlog_rcd(pfx, estatus, cpu);
+		return 0;
+	}
+
+	return 1;
+}
+
+static int extlog_print(struct notifier_block *nb, unsigned long val,
+			void *data)
+{
+	struct mce *mce = (struct mce *)data;
+	int	bank = mce->bank;
+	int	cpu = mce->extcpu;
+	struct acpi_generic_status *estatus;
+	int rc;
+
+	estatus = extlog_elog_entry_check(cpu, bank);
+	if (estatus == NULL)
+		return NOTIFY_DONE;
+
+	memcpy(elog_buf, (void *)estatus, ELOG_ENTRY_LEN);
+	/* clear record status to enable BIOS to update it again */
+	estatus->block_status = 0;
+
+	rc = print_extlog_rcd(NULL, (struct acpi_generic_status *)elog_buf, cpu);
+
+	return NOTIFY_DONE;
+}
+
+static int extlog_get_dsm(acpi_handle handle, int rev, int func, u64 *ret)
+{
+	struct acpi_buffer buf = {ACPI_ALLOCATE_BUFFER, NULL};
+	struct acpi_object_list input;
+	union acpi_object params[4], *obj;
+	u8 uuid[16];
+	int i;
+
+	acpi_str_to_uuid(extlog_dsm_uuid, uuid);
+	input.count = 4;
+	input.pointer = params;
+	params[0].type = ACPI_TYPE_BUFFER;
+	params[0].buffer.length = 16;
+	params[0].buffer.pointer = uuid;
+	params[1].type = ACPI_TYPE_INTEGER;
+	params[1].integer.value = rev;
+	params[2].type = ACPI_TYPE_INTEGER;
+	params[2].integer.value = func;
+	params[3].type = ACPI_TYPE_PACKAGE;
+	params[3].package.count = 0;
+	params[3].package.elements = NULL;
+
+	if (ACPI_FAILURE(acpi_evaluate_object(handle, "_DSM", &input, &buf)))
+		return -1;
+
+	*ret = 0;
+	obj = (union acpi_object *)buf.pointer;
+	if (obj->type == ACPI_TYPE_INTEGER) {
+		*ret = obj->integer.value;
+	} else if (obj->type == ACPI_TYPE_BUFFER) {
+		if (obj->buffer.length <= 8) {
+			for (i = 0; i < obj->buffer.length; i++)
+				*ret |= (obj->buffer.pointer[i] << (i * 8));
+		}
+	}
+	kfree(buf.pointer);
+
+	return 0;
+}
+
+static bool extlog_get_l1addr(void)
+{
+	acpi_handle handle;
+	u64 ret;
+
+	if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle)))
+		return false;
+
+	if (extlog_get_dsm(handle, EXTLOG_DSM_REV, EXTLOG_FN_QUERY, &ret) ||
+	    !(ret & EXTLOG_QUERY_L1_EXIST))
+		return false;
+
+	if (extlog_get_dsm(handle, EXTLOG_DSM_REV, EXTLOG_FN_ADDR, &ret))
+		return false;
+
+	l1_dirbase = ret;
+	/* Spec says L1 directory must be 4K aligned, bail out if it isn't */
+	if (l1_dirbase & ((1 << 12) - 1)) {
+		pr_warn(FW_BUG "L1 Directory is invalid at physical %llx\n",
+			l1_dirbase);
+		return false;
+	}
+
+	return true;
+}
+static struct notifier_block extlog_mce_dec = {
+	.notifier_call	= extlog_print,
+};
+
+static int __init extlog_init(void)
+{
+	struct extlog_l1_head *l1_head;
+	void __iomem *extlog_l1_hdr;
+	size_t l1_hdr_size;
+	struct resource *r;
+	u64 cap;
+	int rc;
+
+	rc = -ENODEV;
+
+	rdmsrl(MSR_IA32_MCG_CAP, cap);
+	if (!(cap & MCG_ELOG_P))
+		return rc;
+
+	if (!extlog_get_l1addr())
+		return rc;
+
+	rc = -EINVAL;
+	/* get L1 header to fetch necessary information */
+	l1_hdr_size = sizeof(struct extlog_l1_head);
+	r = request_mem_region(l1_dirbase, l1_hdr_size, "L1 DIR HDR");
+	if (!r) {
+		pr_warn(FW_BUG EMCA_BUG,
+			(unsigned long long)l1_dirbase,
+			(unsigned long long)l1_dirbase + l1_hdr_size);
+		goto err;
+	}
+
+	extlog_l1_hdr = acpi_os_map_memory(l1_dirbase, l1_hdr_size);
+	l1_head = (struct extlog_l1_head *)extlog_l1_hdr;
+	l1_size = l1_head->total_len;
+	l1_percpu_entry = l1_head->entries;
+	elog_base = l1_head->elog_base;
+	elog_size = l1_head->elog_len;
+	acpi_os_unmap_memory(extlog_l1_hdr, l1_hdr_size);
+	release_mem_region(l1_dirbase, l1_hdr_size);
+
+	/* remap L1 header again based on completed information */
+	r = request_mem_region(l1_dirbase, l1_size, "L1 Table");
+	if (!r) {
+		pr_warn(FW_BUG EMCA_BUG,
+			(unsigned long long)l1_dirbase,
+			(unsigned long long)l1_dirbase + l1_size);
+		goto err;
+	}
+	extlog_l1_addr = acpi_os_map_memory(l1_dirbase, l1_size);
+	l1_entry_base = (u64 *)((u8 *)extlog_l1_addr + l1_hdr_size);
+
+	/* remap elog table */
+	r = request_mem_region(elog_base, elog_size, "Elog Table");
+	if (!r) {
+		pr_warn(FW_BUG EMCA_BUG,
+			(unsigned long long)elog_base,
+			(unsigned long long)elog_base + elog_size);
+		goto err_release_l1_dir;
+	}
+	elog_addr = acpi_os_map_memory(elog_base, elog_size);
+
+	rc = -ENOMEM;
+	/* allocate buffer to save elog record */
+	elog_buf = kmalloc(ELOG_ENTRY_LEN, GFP_KERNEL);
+	if (elog_buf == NULL)
+		goto err_release_elog;
+
+	mce_register_decode_chain(&extlog_mce_dec);
+	/* enable OS to be involved to take over management from BIOS */
+	((struct extlog_l1_head *)extlog_l1_addr)->flags |= FLAG_OS_OPTIN;
+
+	return 0;
+
+err_release_elog:
+	if (elog_addr)
+		acpi_os_unmap_memory(elog_addr, elog_size);
+	release_mem_region(elog_base, elog_size);
+err_release_l1_dir:
+	if (extlog_l1_addr)
+		acpi_os_unmap_memory(extlog_l1_addr, l1_size);
+	release_mem_region(l1_dirbase, l1_size);
+err:
+	pr_warn(FW_BUG "Extended error log disabled because of problems parsing f/w tables\n");
+	return rc;
+}
+
+static void __exit extlog_exit(void)
+{
+	mce_unregister_decode_chain(&extlog_mce_dec);
+	((struct extlog_l1_head *)extlog_l1_addr)->flags &= ~FLAG_OS_OPTIN;
+	if (extlog_l1_addr)
+		acpi_os_unmap_memory(extlog_l1_addr, l1_size);
+	if (elog_addr)
+		acpi_os_unmap_memory(elog_addr, elog_size);
+	release_mem_region(elog_base, elog_size);
+	release_mem_region(l1_dirbase, l1_size);
+	kfree(elog_buf);
+}
+
+module_init(extlog_init);
+module_exit(extlog_exit);
+
+MODULE_AUTHOR("Chen, Gong <gong.chen@intel.com>");
+MODULE_DESCRIPTION("Extended MCA Error Log Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index b587ec8257b2..e1bd9a181117 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -174,7 +174,7 @@ static void acpi_print_osc_error(acpi_handle handle,
 	printk("\n");
 }
 
-static acpi_status acpi_str_to_uuid(char *str, u8 *uuid)
+acpi_status acpi_str_to_uuid(char *str, u8 *uuid)
 {
 	int i;
 	static int opc_map_to_uuid[16] = {6, 4, 2, 0, 11, 9, 16, 14, 19, 21,
@@ -195,6 +195,7 @@ static acpi_status acpi_str_to_uuid(char *str, u8 *uuid)
 	}
 	return AE_OK;
 }
+EXPORT_SYMBOL_GPL(acpi_str_to_uuid);
 
 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context)
 {
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index a5db4aeefa36..c30bac8503bc 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -311,6 +311,7 @@ struct acpi_osc_context {
 #define OSC_INVALID_REVISION_ERROR	8
 #define OSC_CAPABILITIES_MASK_ERROR	16
 
+acpi_status acpi_str_to_uuid(char *str, u8 *uuid);
 acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context);
 
 /* platform-wide _OSC bits */
-- 
cgit 


From dd6dad4288cb93e79bd7abfa6c6a338c47454d1a Mon Sep 17 00:00:00 2001
From: "Chen, Gong" <gong.chen@linux.intel.com>
Date: Fri, 18 Oct 2013 14:29:25 -0700
Subject: DMI: Parse memory device (type 17) in SMBIOS

This patch adds a new interface to decode memory device (type 17)
to help error reporting on DIMMs.

Original-author: Tony Luck <tony.luck@intel.com>
Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Acked-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
 arch/ia64/kernel/setup.c    |  1 +
 arch/x86/kernel/setup.c     |  1 +
 drivers/firmware/dmi_scan.c | 60 +++++++++++++++++++++++++++++++++++++++++++++
 include/linux/dmi.h         |  5 ++++
 4 files changed, 67 insertions(+)

diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c
index 4fc2e9569bb2..d86669bcdfb2 100644
--- a/arch/ia64/kernel/setup.c
+++ b/arch/ia64/kernel/setup.c
@@ -1063,6 +1063,7 @@ check_bugs (void)
 static int __init run_dmi_scan(void)
 {
 	dmi_scan_machine();
+	dmi_memdev_walk();
 	dmi_set_dump_stack_arch_desc();
 	return 0;
 }
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index f0de6294b955..918d489fa53d 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -993,6 +993,7 @@ void __init setup_arch(char **cmdline_p)
 		efi_init();
 
 	dmi_scan_machine();
+	dmi_memdev_walk();
 	dmi_set_dump_stack_arch_desc();
 
 	/*
diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index fa0affb699b4..59579a744d58 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -25,6 +25,13 @@ static int dmi_initialized;
 /* DMI system identification string used during boot */
 static char dmi_ids_string[128] __initdata;
 
+static struct dmi_memdev_info {
+	const char *device;
+	const char *bank;
+	u16 handle;
+} *dmi_memdev;
+static int dmi_memdev_nr;
+
 static const char * __init dmi_string_nosave(const struct dmi_header *dm, u8 s)
 {
 	const u8 *bp = ((u8 *) dm) + dm->length;
@@ -322,6 +329,42 @@ static void __init dmi_save_extended_devices(const struct dmi_header *dm)
 	dmi_save_one_device(*d & 0x7f, dmi_string_nosave(dm, *(d - 1)));
 }
 
+static void __init count_mem_devices(const struct dmi_header *dm, void *v)
+{
+	if (dm->type != DMI_ENTRY_MEM_DEVICE)
+		return;
+	dmi_memdev_nr++;
+}
+
+static void __init save_mem_devices(const struct dmi_header *dm, void *v)
+{
+	const char *d = (const char *)dm;
+	static int nr;
+
+	if (dm->type != DMI_ENTRY_MEM_DEVICE)
+		return;
+	if (nr >= dmi_memdev_nr) {
+		pr_warn(FW_BUG "Too many DIMM entries in SMBIOS table\n");
+		return;
+	}
+	dmi_memdev[nr].handle = dm->handle;
+	dmi_memdev[nr].device = dmi_string(dm, d[0x10]);
+	dmi_memdev[nr].bank = dmi_string(dm, d[0x11]);
+	nr++;
+}
+
+void __init dmi_memdev_walk(void)
+{
+	if (!dmi_available)
+		return;
+
+	if (dmi_walk_early(count_mem_devices) == 0 && dmi_memdev_nr) {
+		dmi_memdev = dmi_alloc(sizeof(*dmi_memdev) * dmi_memdev_nr);
+		if (dmi_memdev)
+			dmi_walk_early(save_mem_devices);
+	}
+}
+
 /*
  *	Process a DMI table entry. Right now all we care about are the BIOS
  *	and machine entries. For 2.5 we should pull the smbus controller info
@@ -815,3 +858,20 @@ bool dmi_match(enum dmi_field f, const char *str)
 	return !strcmp(info, str);
 }
 EXPORT_SYMBOL_GPL(dmi_match);
+
+void dmi_memdev_name(u16 handle, const char **bank, const char **device)
+{
+	int n;
+
+	if (dmi_memdev == NULL)
+		return;
+
+	for (n = 0; n < dmi_memdev_nr; n++) {
+		if (handle == dmi_memdev[n].handle) {
+			*bank = dmi_memdev[n].bank;
+			*device = dmi_memdev[n].device;
+			break;
+		}
+	}
+}
+EXPORT_SYMBOL_GPL(dmi_memdev_name);
diff --git a/include/linux/dmi.h b/include/linux/dmi.h
index b6eb7a05d58e..f820f0a336c9 100644
--- a/include/linux/dmi.h
+++ b/include/linux/dmi.h
@@ -99,6 +99,7 @@ extern const char * dmi_get_system_info(int field);
 extern const struct dmi_device * dmi_find_device(int type, const char *name,
 	const struct dmi_device *from);
 extern void dmi_scan_machine(void);
+extern void dmi_memdev_walk(void);
 extern void dmi_set_dump_stack_arch_desc(void);
 extern bool dmi_get_date(int field, int *yearp, int *monthp, int *dayp);
 extern int dmi_name_in_vendors(const char *str);
@@ -107,6 +108,7 @@ extern int dmi_available;
 extern int dmi_walk(void (*decode)(const struct dmi_header *, void *),
 	void *private_data);
 extern bool dmi_match(enum dmi_field f, const char *str);
+extern void dmi_memdev_name(u16 handle, const char **bank, const char **device);
 
 #else
 
@@ -115,6 +117,7 @@ static inline const char * dmi_get_system_info(int field) { return NULL; }
 static inline const struct dmi_device * dmi_find_device(int type, const char *name,
 	const struct dmi_device *from) { return NULL; }
 static inline void dmi_scan_machine(void) { return; }
+static inline void dmi_memdev_walk(void) { }
 static inline void dmi_set_dump_stack_arch_desc(void) { }
 static inline bool dmi_get_date(int field, int *yearp, int *monthp, int *dayp)
 {
@@ -133,6 +136,8 @@ static inline int dmi_walk(void (*decode)(const struct dmi_header *, void *),
 	void *private_data) { return -1; }
 static inline bool dmi_match(enum dmi_field f, const char *str)
 	{ return false; }
+static inline void dmi_memdev_name(u16 handle, const char **bank,
+		const char **device) { }
 static inline const struct dmi_system_id *
 	dmi_first_match(const struct dmi_system_id *list) { return NULL; }
 
-- 
cgit 


From 147de14772ed897727dba7353916b02d1e0f17f4 Mon Sep 17 00:00:00 2001
From: "Chen, Gong" <gong.chen@linux.intel.com>
Date: Fri, 18 Oct 2013 14:30:13 -0700
Subject: ACPI, APEI, CPER: Add UEFI 2.4 support for memory error

In latest UEFI spec(by now it is 2.4) memory error definition
for CPER (UEFI 2.4 Appendix N Common Platform Error Record)
adds some new fields. These fields help people to locate
memory error to an actual DIMM location.

Original-author: Tony Luck <tony.luck@intel.com>
Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Reviewed-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Acked-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
 arch/x86/kernel/cpu/mcheck/mce-apei.c |  3 +--
 drivers/acpi/apei/cper.c              |  7 ++++---
 drivers/acpi/apei/ghes.c              |  4 ++--
 drivers/edac/ghes_edac.c              |  5 ++---
 include/linux/cper.h                  | 11 +++++++++--
 5 files changed, 18 insertions(+), 12 deletions(-)

diff --git a/arch/x86/kernel/cpu/mcheck/mce-apei.c b/arch/x86/kernel/cpu/mcheck/mce-apei.c
index cd8b166a1735..de8b60a53f69 100644
--- a/arch/x86/kernel/cpu/mcheck/mce-apei.c
+++ b/arch/x86/kernel/cpu/mcheck/mce-apei.c
@@ -42,8 +42,7 @@ void apei_mce_report_mem_error(int corrected, struct cper_sec_mem_err *mem_err)
 	struct mce m;
 
 	/* Only corrected MC is reported */
-	if (!corrected || !(mem_err->validation_bits &
-				CPER_MEM_VALID_PHYSICAL_ADDRESS))
+	if (!corrected || !(mem_err->validation_bits & CPER_MEM_VALID_PA))
 		return;
 
 	mce_setup(&m);
diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c
index eb5f6d6d7dbc..946ef520186f 100644
--- a/drivers/acpi/apei/cper.c
+++ b/drivers/acpi/apei/cper.c
@@ -8,7 +8,7 @@
  * various tables, such as ERST, BERT and HEST etc.
  *
  * For more information about CPER, please refer to Appendix N of UEFI
- * Specification version 2.3.
+ * Specification version 2.4.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License version
@@ -191,16 +191,17 @@ static const char *cper_mem_err_type_strs[] = {
 	"memory sparing",
 	"scrub corrected error",
 	"scrub uncorrected error",
+	"physical memory map-out event",
 };
 
 static void cper_print_mem(const char *pfx, const struct cper_sec_mem_err *mem)
 {
 	if (mem->validation_bits & CPER_MEM_VALID_ERROR_STATUS)
 		printk("%s""error_status: 0x%016llx\n", pfx, mem->error_status);
-	if (mem->validation_bits & CPER_MEM_VALID_PHYSICAL_ADDRESS)
+	if (mem->validation_bits & CPER_MEM_VALID_PA)
 		printk("%s""physical_address: 0x%016llx\n",
 		       pfx, mem->physical_addr);
-	if (mem->validation_bits & CPER_MEM_VALID_PHYSICAL_ADDRESS_MASK)
+	if (mem->validation_bits & CPER_MEM_VALID_PA_MASK)
 		printk("%s""physical_address_mask: 0x%016llx\n",
 		       pfx, mem->physical_addr_mask);
 	if (mem->validation_bits & CPER_MEM_VALID_NODE)
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index 0db6e4ff6501..a30bc313787b 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -419,7 +419,7 @@ static void ghes_handle_memory_failure(struct acpi_generic_data *gdata, int sev)
 
 	if (sec_sev == GHES_SEV_CORRECTED &&
 	    (gdata->flags & CPER_SEC_ERROR_THRESHOLD_EXCEEDED) &&
-	    (mem_err->validation_bits & CPER_MEM_VALID_PHYSICAL_ADDRESS)) {
+	    (mem_err->validation_bits & CPER_MEM_VALID_PA)) {
 		pfn = mem_err->physical_addr >> PAGE_SHIFT;
 		if (pfn_valid(pfn))
 			memory_failure_queue(pfn, 0, MF_SOFT_OFFLINE);
@@ -430,7 +430,7 @@ static void ghes_handle_memory_failure(struct acpi_generic_data *gdata, int sev)
 	}
 	if (sev == GHES_SEV_RECOVERABLE &&
 	    sec_sev == GHES_SEV_RECOVERABLE &&
-	    mem_err->validation_bits & CPER_MEM_VALID_PHYSICAL_ADDRESS) {
+	    mem_err->validation_bits & CPER_MEM_VALID_PA) {
 		pfn = mem_err->physical_addr >> PAGE_SHIFT;
 		memory_failure_queue(pfn, 0, 0);
 	}
diff --git a/drivers/edac/ghes_edac.c b/drivers/edac/ghes_edac.c
index bb534670ec02..0ad797b9db65 100644
--- a/drivers/edac/ghes_edac.c
+++ b/drivers/edac/ghes_edac.c
@@ -297,15 +297,14 @@ void ghes_edac_report_mem_error(struct ghes *ghes, int sev,
 	}
 
 	/* Error address */
-	if (mem_err->validation_bits & CPER_MEM_VALID_PHYSICAL_ADDRESS) {
+	if (mem_err->validation_bits & CPER_MEM_VALID_PA) {
 		e->page_frame_number = mem_err->physical_addr >> PAGE_SHIFT;
 		e->offset_in_page = mem_err->physical_addr & ~PAGE_MASK;
 	}
 
 	/* Error grain */
-	if (mem_err->validation_bits & CPER_MEM_VALID_PHYSICAL_ADDRESS_MASK) {
+	if (mem_err->validation_bits & CPER_MEM_VALID_PA_MASK)
 		e->grain = ~(mem_err->physical_addr_mask & ~PAGE_MASK);
-	}
 
 	/* Memory error location, mapped on e->location */
 	p = e->location;
diff --git a/include/linux/cper.h b/include/linux/cper.h
index 09ebe2113641..2fc0ec3d89cc 100644
--- a/include/linux/cper.h
+++ b/include/linux/cper.h
@@ -218,8 +218,8 @@ enum {
 #define CPER_PROC_VALID_IP			0x1000
 
 #define CPER_MEM_VALID_ERROR_STATUS		0x0001
-#define CPER_MEM_VALID_PHYSICAL_ADDRESS		0x0002
-#define CPER_MEM_VALID_PHYSICAL_ADDRESS_MASK	0x0004
+#define CPER_MEM_VALID_PA			0x0002
+#define CPER_MEM_VALID_PA_MASK			0x0004
 #define CPER_MEM_VALID_NODE			0x0008
 #define CPER_MEM_VALID_CARD			0x0010
 #define CPER_MEM_VALID_MODULE			0x0020
@@ -232,6 +232,9 @@ enum {
 #define CPER_MEM_VALID_RESPONDER_ID		0x1000
 #define CPER_MEM_VALID_TARGET_ID		0x2000
 #define CPER_MEM_VALID_ERROR_TYPE		0x4000
+#define CPER_MEM_VALID_RANK_NUMBER		0x8000
+#define CPER_MEM_VALID_CARD_HANDLE		0x10000
+#define CPER_MEM_VALID_MODULE_HANDLE		0x20000
 
 #define CPER_PCIE_VALID_PORT_TYPE		0x0001
 #define CPER_PCIE_VALID_VERSION			0x0002
@@ -347,6 +350,10 @@ struct cper_sec_mem_err {
 	__u64	responder_id;
 	__u64	target_id;
 	__u8	error_type;
+	__u8	reserved;
+	__u16	rank;
+	__u16	mem_array_handle;	/* card handle in UEFI 2.4 */
+	__u16	mem_dev_handle;		/* module handle in UEFI 2.4 */
 };
 
 struct cper_sec_pcie {
-- 
cgit 


From fbeef85fd2ccdd61568c86fe33d6ad6b79851a53 Mon Sep 17 00:00:00 2001
From: "Chen, Gong" <gong.chen@linux.intel.com>
Date: Fri, 18 Oct 2013 14:30:21 -0700
Subject: ACPI, APEI, CPER: Enhance memory reporting capability

After H/W error happens under FFM enabled mode, lots of information
are shown but new fields added by UEFI 2.4 (e.g. DIMM location) need to
be added.

Original-author: Tony Luck <tony.luck@intel.com>
Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Acked-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
 drivers/acpi/apei/cper.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c
index 946ef520186f..b1a8a55915d9 100644
--- a/drivers/acpi/apei/cper.c
+++ b/drivers/acpi/apei/cper.c
@@ -28,6 +28,7 @@
 #include <linux/module.h>
 #include <linux/time.h>
 #include <linux/cper.h>
+#include <linux/dmi.h>
 #include <linux/acpi.h>
 #include <linux/pci.h>
 #include <linux/aer.h>
@@ -210,6 +211,8 @@ static void cper_print_mem(const char *pfx, const struct cper_sec_mem_err *mem)
 		printk("%s""card: %d\n", pfx, mem->card);
 	if (mem->validation_bits & CPER_MEM_VALID_MODULE)
 		printk("%s""module: %d\n", pfx, mem->module);
+	if (mem->validation_bits & CPER_MEM_VALID_RANK_NUMBER)
+		printk("%s""rank: %d\n", pfx, mem->rank);
 	if (mem->validation_bits & CPER_MEM_VALID_BANK)
 		printk("%s""bank: %d\n", pfx, mem->bank);
 	if (mem->validation_bits & CPER_MEM_VALID_DEVICE)
@@ -232,6 +235,15 @@ static void cper_print_mem(const char *pfx, const struct cper_sec_mem_err *mem)
 		       etype < ARRAY_SIZE(cper_mem_err_type_strs) ?
 		       cper_mem_err_type_strs[etype] : "unknown");
 	}
+	if (mem->validation_bits & CPER_MEM_VALID_MODULE_HANDLE) {
+		const char *bank = NULL, *device = NULL;
+		dmi_memdev_name(mem->mem_dev_handle, &bank, &device);
+		if (bank != NULL && device != NULL)
+			printk("%s""DIMM location: %s %s", pfx, bank, device);
+		else
+			printk("%s""DIMM DMI handle: 0x%.4x",
+			       pfx, mem->mem_dev_handle);
+	}
 }
 
 static const char *cper_pcie_port_type_strs[] = {
-- 
cgit 


From f6edea77c8c83760d74356ce6bd45d530d32b27f Mon Sep 17 00:00:00 2001
From: "Chen, Gong" <gong.chen@linux.intel.com>
Date: Fri, 18 Oct 2013 14:30:29 -0700
Subject: ACPI, APEI, CPER: Cleanup CPER memory error output format

Memory error reporting is much too verbose.  Most users do not care about
the DIMM internal bank/row/column information. Downgrade the fine details
to "pr_debug" status so that those few who do care can get them if they
really want to.  The detail information will be later be provided by
perf/trace interface.
Since things are still a bit scary, and users are sometimes overly
nervous, provide a reassuring message that corrected errors do not
generally require any further action.

Suggested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Reviewed-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
 drivers/acpi/apei/cper.c | 67 ++++++++++++++++++++++--------------------------
 1 file changed, 31 insertions(+), 36 deletions(-)

diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c
index b1a8a55915d9..1491dd4f08f9 100644
--- a/drivers/acpi/apei/cper.c
+++ b/drivers/acpi/apei/cper.c
@@ -33,6 +33,7 @@
 #include <linux/pci.h>
 #include <linux/aer.h>
 
+#define INDENT_SP	" "
 /*
  * CPER record ID need to be unique even after reboot, because record
  * ID is used as index for ERST storage, while CPER records from
@@ -206,29 +207,29 @@ static void cper_print_mem(const char *pfx, const struct cper_sec_mem_err *mem)
 		printk("%s""physical_address_mask: 0x%016llx\n",
 		       pfx, mem->physical_addr_mask);
 	if (mem->validation_bits & CPER_MEM_VALID_NODE)
-		printk("%s""node: %d\n", pfx, mem->node);
+		pr_debug("node: %d\n", mem->node);
 	if (mem->validation_bits & CPER_MEM_VALID_CARD)
-		printk("%s""card: %d\n", pfx, mem->card);
+		pr_debug("card: %d\n", mem->card);
 	if (mem->validation_bits & CPER_MEM_VALID_MODULE)
-		printk("%s""module: %d\n", pfx, mem->module);
+		pr_debug("module: %d\n", mem->module);
 	if (mem->validation_bits & CPER_MEM_VALID_RANK_NUMBER)
-		printk("%s""rank: %d\n", pfx, mem->rank);
+		pr_debug("rank: %d\n", mem->rank);
 	if (mem->validation_bits & CPER_MEM_VALID_BANK)
-		printk("%s""bank: %d\n", pfx, mem->bank);
+		pr_debug("bank: %d\n", mem->bank);
 	if (mem->validation_bits & CPER_MEM_VALID_DEVICE)
-		printk("%s""device: %d\n", pfx, mem->device);
+		pr_debug("device: %d\n", mem->device);
 	if (mem->validation_bits & CPER_MEM_VALID_ROW)
-		printk("%s""row: %d\n", pfx, mem->row);
+		pr_debug("row: %d\n", mem->row);
 	if (mem->validation_bits & CPER_MEM_VALID_COLUMN)
-		printk("%s""column: %d\n", pfx, mem->column);
+		pr_debug("column: %d\n", mem->column);
 	if (mem->validation_bits & CPER_MEM_VALID_BIT_POSITION)
-		printk("%s""bit_position: %d\n", pfx, mem->bit_pos);
+		pr_debug("bit_position: %d\n", mem->bit_pos);
 	if (mem->validation_bits & CPER_MEM_VALID_REQUESTOR_ID)
-		printk("%s""requestor_id: 0x%016llx\n", pfx, mem->requestor_id);
+		pr_debug("requestor_id: 0x%016llx\n", mem->requestor_id);
 	if (mem->validation_bits & CPER_MEM_VALID_RESPONDER_ID)
-		printk("%s""responder_id: 0x%016llx\n", pfx, mem->responder_id);
+		pr_debug("responder_id: 0x%016llx\n", mem->responder_id);
 	if (mem->validation_bits & CPER_MEM_VALID_TARGET_ID)
-		printk("%s""target_id: 0x%016llx\n", pfx, mem->target_id);
+		pr_debug("target_id: 0x%016llx\n", mem->target_id);
 	if (mem->validation_bits & CPER_MEM_VALID_ERROR_TYPE) {
 		u8 etype = mem->error_type;
 		printk("%s""error_type: %d, %s\n", pfx, etype,
@@ -296,55 +297,45 @@ static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie,
 	pfx, pcie->bridge.secondary_status, pcie->bridge.control);
 }
 
-static const char * const cper_estatus_section_flag_strs[] = {
-	"primary",
-	"containment warning",
-	"reset",
-	"error threshold exceeded",
-	"resource not accessible",
-	"latent error",
-};
-
 static void cper_estatus_print_section(
 	const char *pfx, const struct acpi_generic_data *gdata, int sec_no)
 {
 	uuid_le *sec_type = (uuid_le *)gdata->section_type;
 	__u16 severity;
+	char newpfx[64];
 
 	severity = gdata->error_severity;
-	printk("%s""section: %d, severity: %d, %s\n", pfx, sec_no, severity,
+	printk("%s""Error %d, type: %s\n", pfx, sec_no,
 	       cper_severity_str(severity));
-	printk("%s""flags: 0x%02x\n", pfx, gdata->flags);
-	cper_print_bits(pfx, gdata->flags, cper_estatus_section_flag_strs,
-			ARRAY_SIZE(cper_estatus_section_flag_strs));
 	if (gdata->validation_bits & CPER_SEC_VALID_FRU_ID)
 		printk("%s""fru_id: %pUl\n", pfx, (uuid_le *)gdata->fru_id);
 	if (gdata->validation_bits & CPER_SEC_VALID_FRU_TEXT)
 		printk("%s""fru_text: %.20s\n", pfx, gdata->fru_text);
 
+	snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP);
 	if (!uuid_le_cmp(*sec_type, CPER_SEC_PROC_GENERIC)) {
 		struct cper_sec_proc_generic *proc_err = (void *)(gdata + 1);
-		printk("%s""section_type: general processor error\n", pfx);
+		printk("%s""section_type: general processor error\n", newpfx);
 		if (gdata->error_data_length >= sizeof(*proc_err))
-			cper_print_proc_generic(pfx, proc_err);
+			cper_print_proc_generic(newpfx, proc_err);
 		else
 			goto err_section_too_small;
 	} else if (!uuid_le_cmp(*sec_type, CPER_SEC_PLATFORM_MEM)) {
 		struct cper_sec_mem_err *mem_err = (void *)(gdata + 1);
-		printk("%s""section_type: memory error\n", pfx);
+		printk("%s""section_type: memory error\n", newpfx);
 		if (gdata->error_data_length >= sizeof(*mem_err))
-			cper_print_mem(pfx, mem_err);
+			cper_print_mem(newpfx, mem_err);
 		else
 			goto err_section_too_small;
 	} else if (!uuid_le_cmp(*sec_type, CPER_SEC_PCIE)) {
 		struct cper_sec_pcie *pcie = (void *)(gdata + 1);
-		printk("%s""section_type: PCIe error\n", pfx);
+		printk("%s""section_type: PCIe error\n", newpfx);
 		if (gdata->error_data_length >= sizeof(*pcie))
-			cper_print_pcie(pfx, pcie, gdata);
+			cper_print_pcie(newpfx, pcie, gdata);
 		else
 			goto err_section_too_small;
 	} else
-		printk("%s""section type: unknown, %pUl\n", pfx, sec_type);
+		printk("%s""section type: unknown, %pUl\n", newpfx, sec_type);
 
 	return;
 
@@ -358,17 +349,21 @@ void cper_estatus_print(const char *pfx,
 	struct acpi_generic_data *gdata;
 	unsigned int data_len, gedata_len;
 	int sec_no = 0;
+	char newpfx[64];
 	__u16 severity;
 
-	printk("%s""Generic Hardware Error Status\n", pfx);
 	severity = estatus->error_severity;
-	printk("%s""severity: %d, %s\n", pfx, severity,
-	       cper_severity_str(severity));
+	if (severity == CPER_SEV_CORRECTED)
+		printk("%s%s\n", pfx,
+		       "It has been corrected by h/w "
+		       "and requires no further action");
+	printk("%s""event severity: %s\n", pfx, cper_severity_str(severity));
 	data_len = estatus->data_length;
 	gdata = (struct acpi_generic_data *)(estatus + 1);
+	snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP);
 	while (data_len >= sizeof(*gdata)) {
 		gedata_len = gdata->error_data_length;
-		cper_estatus_print_section(pfx, gdata, sec_no);
+		cper_estatus_print_section(newpfx, gdata, sec_no);
 		data_len -= gedata_len + sizeof(*gdata);
 		gdata = (void *)(gdata + 1) + gedata_len;
 		sec_no++;
-- 
cgit 


From 56507694de3453076d73e0e9813349586ee67e59 Mon Sep 17 00:00:00 2001
From: "Chen, Gong" <gong.chen@linux.intel.com>
Date: Fri, 18 Oct 2013 14:30:38 -0700
Subject: EDAC, GHES: Update ghes error record info

In latest UEFI spec(by now it's 2.4) there are some new
fields for memory error reporting. Add these new fields for
ghes_edac interface.

Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
 drivers/edac/ghes_edac.c | 11 +++++++++++
 include/linux/edac.h     |  2 +-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/edac/ghes_edac.c b/drivers/edac/ghes_edac.c
index 0ad797b9db65..d5a98a45c062 100644
--- a/drivers/edac/ghes_edac.c
+++ b/drivers/edac/ghes_edac.c
@@ -314,6 +314,8 @@ void ghes_edac_report_mem_error(struct ghes *ghes, int sev,
 		p += sprintf(p, "card:%d ", mem_err->card);
 	if (mem_err->validation_bits & CPER_MEM_VALID_MODULE)
 		p += sprintf(p, "module:%d ", mem_err->module);
+	if (mem_err->validation_bits & CPER_MEM_VALID_RANK_NUMBER)
+		p += sprintf(p, "rank:%d ", mem_err->rank);
 	if (mem_err->validation_bits & CPER_MEM_VALID_BANK)
 		p += sprintf(p, "bank:%d ", mem_err->bank);
 	if (mem_err->validation_bits & CPER_MEM_VALID_ROW)
@@ -322,6 +324,15 @@ void ghes_edac_report_mem_error(struct ghes *ghes, int sev,
 		p += sprintf(p, "col:%d ", mem_err->column);
 	if (mem_err->validation_bits & CPER_MEM_VALID_BIT_POSITION)
 		p += sprintf(p, "bit_pos:%d ", mem_err->bit_pos);
+	if (mem_err->validation_bits & CPER_MEM_VALID_MODULE_HANDLE) {
+		const char *bank = NULL, *device = NULL;
+		dmi_memdev_name(mem_err->mem_dev_handle, &bank, &device);
+		if (bank != NULL && device != NULL)
+			p += sprintf(p, "DIMM location:%s %s ", bank, device);
+		else
+			p += sprintf(p, "DIMM DMI handle: 0x%.4x ",
+				     mem_err->mem_dev_handle);
+	}
 	if (p > e->location)
 		*(p - 1) = '\0';
 
diff --git a/include/linux/edac.h b/include/linux/edac.h
index 5c6d7fbaf89e..dbdffe8d4469 100644
--- a/include/linux/edac.h
+++ b/include/linux/edac.h
@@ -51,7 +51,7 @@ static inline void opstate_init(void)
 #define EDAC_MC_LABEL_LEN	31
 
 /* Maximum size of the location string */
-#define LOCATION_SIZE 80
+#define LOCATION_SIZE 256
 
 /* Defines the maximum number of labels that can be reported */
 #define EDAC_MAX_LABELS		8
-- 
cgit 


From 4779a2e99af80e133ee1c70c7093dc6cc13429a1 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Wed, 23 Oct 2013 14:08:48 -0300
Subject: perf ui: Rename ui_progress to ui_progress_ops

Reserving 'struct ui_progress' to the per progress instances, not to the
particular set of operations used to implmenet a progress bar in the
current UI (GTK, TUI, etc).

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-zjqbfp9gx3yo45s0rp9uv42n@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Makefile.perf     |  1 +
 tools/perf/ui/gtk/gtk.h      |  2 +-
 tools/perf/ui/gtk/progress.c | 14 +++++++-------
 tools/perf/ui/gtk/setup.c    |  2 +-
 tools/perf/ui/progress.c     | 18 +++++++++---------
 tools/perf/ui/progress.h     |  6 ++----
 tools/perf/ui/tui/progress.c |  7 ++++---
 tools/perf/ui/tui/setup.c    |  3 ++-
 tools/perf/ui/tui/tui.h      |  6 ++++++
 9 files changed, 33 insertions(+), 26 deletions(-)
 create mode 100644 tools/perf/ui/tui/tui.h

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 326a26e5fc1c..8a9ca3836043 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -487,6 +487,7 @@ ifndef NO_SLANG
   LIB_OBJS += $(OUTPUT)ui/tui/util.o
   LIB_OBJS += $(OUTPUT)ui/tui/helpline.o
   LIB_OBJS += $(OUTPUT)ui/tui/progress.o
+  LIB_H += ui/tui/tui.h
   LIB_H += ui/browser.h
   LIB_H += ui/browsers/map.h
   LIB_H += ui/keysyms.h
diff --git a/tools/perf/ui/gtk/gtk.h b/tools/perf/ui/gtk/gtk.h
index 8576cf194872..0a9173ff9a61 100644
--- a/tools/perf/ui/gtk/gtk.h
+++ b/tools/perf/ui/gtk/gtk.h
@@ -34,7 +34,7 @@ struct perf_gtk_context *perf_gtk__activate_context(GtkWidget *window);
 int perf_gtk__deactivate_context(struct perf_gtk_context **ctx);
 
 void perf_gtk__init_helpline(void);
-void perf_gtk__init_progress(void);
+void gtk_ui_progress__init(void);
 void perf_gtk__init_hpp(void);
 
 void perf_gtk__signal(int sig);
diff --git a/tools/perf/ui/gtk/progress.c b/tools/perf/ui/gtk/progress.c
index 482bcf3df9b7..195c7f94f98e 100644
--- a/tools/perf/ui/gtk/progress.c
+++ b/tools/perf/ui/gtk/progress.c
@@ -7,7 +7,7 @@
 static GtkWidget *dialog;
 static GtkWidget *progress;
 
-static void gtk_progress_update(u64 curr, u64 total, const char *title)
+static void gtk_ui_progress__update(u64 curr, u64 total, const char *title)
 {
 	double fraction = total ? 1.0 * curr / total : 0.0;
 	char buf[1024];
@@ -40,7 +40,7 @@ static void gtk_progress_update(u64 curr, u64 total, const char *title)
 		gtk_main_iteration();
 }
 
-static void gtk_progress_finish(void)
+static void gtk_ui_progress__finish(void)
 {
 	/* this will also destroy all of its children */
 	gtk_widget_destroy(dialog);
@@ -48,12 +48,12 @@ static void gtk_progress_finish(void)
 	dialog = NULL;
 }
 
-static struct ui_progress gtk_progress_fns = {
-	.update		= gtk_progress_update,
-	.finish		= gtk_progress_finish,
+static struct ui_progress_ops gtk_ui_progress__ops = {
+	.update		= gtk_ui_progress__update,
+	.finish		= gtk_ui_progress__finish,
 };
 
-void perf_gtk__init_progress(void)
+void gtk_ui_progress__init(void)
 {
-	progress_fns = &gtk_progress_fns;
+	ui_progress__ops = &gtk_ui_progress__ops;
 }
diff --git a/tools/perf/ui/gtk/setup.c b/tools/perf/ui/gtk/setup.c
index 6c2dd2e423f3..1d57676f8212 100644
--- a/tools/perf/ui/gtk/setup.c
+++ b/tools/perf/ui/gtk/setup.c
@@ -8,7 +8,7 @@ int perf_gtk__init(void)
 {
 	perf_error__register(&perf_gtk_eops);
 	perf_gtk__init_helpline();
-	perf_gtk__init_progress();
+	gtk_ui_progress__init();
 	perf_gtk__init_hpp();
 
 	return gtk_init_check(NULL, NULL) ? 0 : -1;
diff --git a/tools/perf/ui/progress.c b/tools/perf/ui/progress.c
index 3ec695607a4d..d753821b6e0b 100644
--- a/tools/perf/ui/progress.c
+++ b/tools/perf/ui/progress.c
@@ -1,26 +1,26 @@
 #include "../cache.h"
 #include "progress.h"
 
-static void nop_progress_update(u64 curr __maybe_unused,
-				u64 total __maybe_unused,
-				const char *title __maybe_unused)
+static void null_progress__update(u64 curr __maybe_unused,
+				  u64 total __maybe_unused,
+				  const char *title __maybe_unused)
 {
 }
 
-static struct ui_progress default_progress_fns =
+static struct ui_progress_ops null_progress__ops =
 {
-	.update		= nop_progress_update,
+	.update = null_progress__update,
 };
 
-struct ui_progress *progress_fns = &default_progress_fns;
+struct ui_progress_ops *ui_progress__ops = &null_progress__ops;
 
 void ui_progress__update(u64 curr, u64 total, const char *title)
 {
-	return progress_fns->update(curr, total, title);
+	return ui_progress__ops->update(curr, total, title);
 }
 
 void ui_progress__finish(void)
 {
-	if (progress_fns->finish)
-		progress_fns->finish();
+	if (ui_progress__ops->finish)
+		ui_progress__ops->finish();
 }
diff --git a/tools/perf/ui/progress.h b/tools/perf/ui/progress.h
index 257cc224f9cf..d41bde5908a6 100644
--- a/tools/perf/ui/progress.h
+++ b/tools/perf/ui/progress.h
@@ -3,14 +3,12 @@
 
 #include <../types.h>
 
-struct ui_progress {
+struct ui_progress_ops {
 	void (*update)(u64, u64, const char *);
 	void (*finish)(void);
 };
 
-extern struct ui_progress *progress_fns;
-
-void ui_progress__init(void);
+extern struct ui_progress_ops *ui_progress__ops;
 
 void ui_progress__update(u64 curr, u64 total, const char *title);
 void ui_progress__finish(void);
diff --git a/tools/perf/ui/tui/progress.c b/tools/perf/ui/tui/progress.c
index 6c2184d53cbf..0fcc5a1f525a 100644
--- a/tools/perf/ui/tui/progress.c
+++ b/tools/perf/ui/tui/progress.c
@@ -2,6 +2,7 @@
 #include "../progress.h"
 #include "../libslang.h"
 #include "../ui.h"
+#include "tui.h"
 #include "../browser.h"
 
 static void tui_progress__update(u64 curr, u64 total, const char *title)
@@ -31,12 +32,12 @@ static void tui_progress__update(u64 curr, u64 total, const char *title)
 	pthread_mutex_unlock(&ui__lock);
 }
 
-static struct ui_progress tui_progress_fns =
+static struct ui_progress_ops tui_progress__ops =
 {
 	.update		= tui_progress__update,
 };
 
-void ui_progress__init(void)
+void tui_progress__init(void)
 {
-	progress_fns = &tui_progress_fns;
+	ui_progress__ops = &tui_progress__ops;
 }
diff --git a/tools/perf/ui/tui/setup.c b/tools/perf/ui/tui/setup.c
index b9401482d110..2f612562978c 100644
--- a/tools/perf/ui/tui/setup.c
+++ b/tools/perf/ui/tui/setup.c
@@ -9,6 +9,7 @@
 #include "../util.h"
 #include "../libslang.h"
 #include "../keysyms.h"
+#include "tui.h"
 
 static volatile int ui__need_resize;
 
@@ -119,7 +120,7 @@ int ui__init(void)
 
 	ui_helpline__init();
 	ui_browser__init();
-	ui_progress__init();
+	tui_progress__init();
 
 	signal(SIGSEGV, ui__signal);
 	signal(SIGFPE, ui__signal);
diff --git a/tools/perf/ui/tui/tui.h b/tools/perf/ui/tui/tui.h
new file mode 100644
index 000000000000..18961c7b6ec5
--- /dev/null
+++ b/tools/perf/ui/tui/tui.h
@@ -0,0 +1,6 @@
+#ifndef _PERF_TUI_H_
+#define _PERF_TUI_H_ 1
+
+void tui_progress__init(void);
+
+#endif /* _PERF_TUI_H_ */
-- 
cgit 


From 4d3001fdfdfacd2b35ee74ff0f037274eeebd3f6 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Wed, 23 Oct 2013 15:40:38 -0300
Subject: perf ui progress: Per progress bar state

That will ease using a progress bar across multiple functions, like in
the upcoming patches that will present a progress bar when collapsing
histograms.

Based on a previous patch by Namhyung Kim.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-cr7lq7ud9fj21bg7wvq27w1u@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/ui/gtk/progress.c |  8 ++++----
 tools/perf/ui/progress.c     | 22 +++++++++++++++++-----
 tools/perf/ui/progress.h     | 15 +++++++++++----
 tools/perf/ui/tui/progress.c |  8 ++++----
 tools/perf/util/session.c    | 24 +++++++++++-------------
 5 files changed, 47 insertions(+), 30 deletions(-)

diff --git a/tools/perf/ui/gtk/progress.c b/tools/perf/ui/gtk/progress.c
index 195c7f94f98e..b656655fbc39 100644
--- a/tools/perf/ui/gtk/progress.c
+++ b/tools/perf/ui/gtk/progress.c
@@ -7,14 +7,14 @@
 static GtkWidget *dialog;
 static GtkWidget *progress;
 
-static void gtk_ui_progress__update(u64 curr, u64 total, const char *title)
+static void gtk_ui_progress__update(struct ui_progress *p)
 {
-	double fraction = total ? 1.0 * curr / total : 0.0;
+	double fraction = p->total ? 1.0 * p->curr / p->total : 0.0;
 	char buf[1024];
 
 	if (dialog == NULL) {
 		GtkWidget *vbox = gtk_vbox_new(TRUE, 5);
-		GtkWidget *label = gtk_label_new(title);
+		GtkWidget *label = gtk_label_new(p->title);
 
 		dialog = gtk_window_new(GTK_WINDOW_TOPLEVEL);
 		progress = gtk_progress_bar_new();
@@ -32,7 +32,7 @@ static void gtk_ui_progress__update(u64 curr, u64 total, const char *title)
 	}
 
 	gtk_progress_bar_set_fraction(GTK_PROGRESS_BAR(progress), fraction);
-	snprintf(buf, sizeof(buf), "%"PRIu64" / %"PRIu64, curr, total);
+	snprintf(buf, sizeof(buf), "%"PRIu64" / %"PRIu64, p->curr, p->total);
 	gtk_progress_bar_set_text(GTK_PROGRESS_BAR(progress), buf);
 
 	/* we didn't call gtk_main yet, so do it manually */
diff --git a/tools/perf/ui/progress.c b/tools/perf/ui/progress.c
index d753821b6e0b..a0f24c7115c5 100644
--- a/tools/perf/ui/progress.c
+++ b/tools/perf/ui/progress.c
@@ -1,9 +1,7 @@
 #include "../cache.h"
 #include "progress.h"
 
-static void null_progress__update(u64 curr __maybe_unused,
-				  u64 total __maybe_unused,
-				  const char *title __maybe_unused)
+static void null_progress__update(struct ui_progress *p __maybe_unused)
 {
 }
 
@@ -14,9 +12,23 @@ static struct ui_progress_ops null_progress__ops =
 
 struct ui_progress_ops *ui_progress__ops = &null_progress__ops;
 
-void ui_progress__update(u64 curr, u64 total, const char *title)
+void ui_progress__update(struct ui_progress *p, u64 adv)
 {
-	return ui_progress__ops->update(curr, total, title);
+	p->curr += adv;
+
+	if (p->curr >= p->next) {
+		p->next += p->step;
+		ui_progress__ops->update(p);
+	}
+}
+
+void ui_progress__init(struct ui_progress *p, u64 total, const char *title)
+{
+	p->curr = 0;
+	p->next = p->step = total / 16;
+	p->total = total;
+	p->title = title;
+
 }
 
 void ui_progress__finish(void)
diff --git a/tools/perf/ui/progress.h b/tools/perf/ui/progress.h
index d41bde5908a6..29ec8efffefb 100644
--- a/tools/perf/ui/progress.h
+++ b/tools/perf/ui/progress.h
@@ -3,14 +3,21 @@
 
 #include <../types.h>
 
+void ui_progress__finish(void);
+ 
+struct ui_progress {
+	const char *title;
+	u64 curr, next, step, total;
+};
+ 
+void ui_progress__init(struct ui_progress *p, u64 total, const char *title);
+void ui_progress__update(struct ui_progress *p, u64 adv);
+
 struct ui_progress_ops {
-	void (*update)(u64, u64, const char *);
+	void (*update)(struct ui_progress *p);
 	void (*finish)(void);
 };
 
 extern struct ui_progress_ops *ui_progress__ops;
 
-void ui_progress__update(u64 curr, u64 total, const char *title);
-void ui_progress__finish(void);
-
 #endif
diff --git a/tools/perf/ui/tui/progress.c b/tools/perf/ui/tui/progress.c
index 0fcc5a1f525a..3e2d936d7443 100644
--- a/tools/perf/ui/tui/progress.c
+++ b/tools/perf/ui/tui/progress.c
@@ -5,7 +5,7 @@
 #include "tui.h"
 #include "../browser.h"
 
-static void tui_progress__update(u64 curr, u64 total, const char *title)
+static void tui_progress__update(struct ui_progress *p)
 {
 	int bar, y;
 	/*
@@ -15,7 +15,7 @@ static void tui_progress__update(u64 curr, u64 total, const char *title)
 	if (use_browser <= 0)
 		return;
 
-	if (total == 0)
+	if (p->total == 0)
 		return;
 
 	ui__refresh_dimensions(true);
@@ -24,9 +24,9 @@ static void tui_progress__update(u64 curr, u64 total, const char *title)
 	SLsmg_set_color(0);
 	SLsmg_draw_box(y, 0, 3, SLtt_Screen_Cols);
 	SLsmg_gotorc(y++, 1);
-	SLsmg_write_string((char *)title);
+	SLsmg_write_string((char *)p->title);
 	SLsmg_set_color(HE_COLORSET_SELECTED);
-	bar = ((SLtt_Screen_Cols - 2) * curr) / total;
+	bar = ((SLtt_Screen_Cols - 2) * p->curr) / p->total;
 	SLsmg_fill_region(y, 1, 1, bar, ' ');
 	SLsmg_refresh();
 	pthread_mutex_unlock(&ui__lock);
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 854c5aa4db0d..4ba7b548e055 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -503,13 +503,16 @@ static int flush_sample_queue(struct perf_session *s,
 	struct perf_sample sample;
 	u64 limit = os->next_flush;
 	u64 last_ts = os->last_sample ? os->last_sample->timestamp : 0ULL;
-	unsigned idx = 0, progress_next = os->nr_samples / 16;
 	bool show_progress = limit == ULLONG_MAX;
+	struct ui_progress prog;
 	int ret;
 
 	if (!tool->ordered_samples || !limit)
 		return 0;
 
+	if (show_progress)
+		ui_progress__init(&prog, os->nr_samples, "Processing time ordered events...");
+
 	list_for_each_entry_safe(iter, tmp, head, list) {
 		if (session_done())
 			return 0;
@@ -530,11 +533,9 @@ static int flush_sample_queue(struct perf_session *s,
 		os->last_flush = iter->timestamp;
 		list_del(&iter->list);
 		list_add(&iter->list, &os->sample_cache);
-		if (show_progress && (++idx >= progress_next)) {
-			progress_next += os->nr_samples / 16;
-			ui_progress__update(idx, os->nr_samples,
-					    "Processing time ordered events...");
-		}
+
+		if (show_progress)
+			ui_progress__update(&prog, 1);
 	}
 
 	if (list_empty(head)) {
@@ -1285,12 +1286,13 @@ int __perf_session__process_events(struct perf_session *session,
 				   u64 file_size, struct perf_tool *tool)
 {
 	int fd = perf_data_file__fd(session->file);
-	u64 head, page_offset, file_offset, file_pos, progress_next;
+	u64 head, page_offset, file_offset, file_pos;
 	int err, mmap_prot, mmap_flags, map_idx = 0;
 	size_t	mmap_size;
 	char *buf, *mmaps[NUM_MMAPS];
 	union perf_event *event;
 	uint32_t size;
+	struct ui_progress prog;
 
 	perf_tool__fill_defaults(tool);
 
@@ -1301,7 +1303,7 @@ int __perf_session__process_events(struct perf_session *session,
 	if (data_size && (data_offset + data_size < file_size))
 		file_size = data_offset + data_size;
 
-	progress_next = file_size / 16;
+	ui_progress__init(&prog, file_size, "Processing events...");
 
 	mmap_size = MMAP_SIZE;
 	if (mmap_size > file_size)
@@ -1356,11 +1358,7 @@ more:
 	head += size;
 	file_pos += size;
 
-	if (file_pos >= progress_next) {
-		progress_next += file_size / 16;
-		ui_progress__update(file_pos, file_size,
-				    "Processing events...");
-	}
+	ui_progress__update(&prog, size);
 
 	if (session_done())
 		goto out;
-- 
cgit 


From c1fb5651bb40f9efaf32d280f39e06df7e352673 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Fri, 11 Oct 2013 14:15:38 +0900
Subject: perf tools: Show progress on histogram collapsing

It can take quite amount of time so add progress bar UI to inform user.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1381468543-25334-4-git-send-email-namhyung@kernel.org
[ perf_progress -> ui_progress ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-annotate.c |  2 +-
 tools/perf/builtin-diff.c     |  2 +-
 tools/perf/builtin-report.c   | 10 +++++++++-
 tools/perf/builtin-top.c      |  4 ++--
 tools/perf/tests/hists_link.c |  2 +-
 tools/perf/util/hist.c        |  5 ++++-
 tools/perf/util/hist.h        |  3 ++-
 7 files changed, 20 insertions(+), 8 deletions(-)

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 17c6b494e8cc..6c5ae57831f6 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -247,7 +247,7 @@ static int __cmd_annotate(struct perf_annotate *ann)
 
 		if (nr_samples > 0) {
 			total_nr_samples += nr_samples;
-			hists__collapse_resort(hists);
+			hists__collapse_resort(hists, NULL);
 			hists__output_resort(hists);
 
 			if (symbol_conf.event_group &&
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 9c828881714c..b605009e803f 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -369,7 +369,7 @@ static void perf_evlist__collapse_resort(struct perf_evlist *evlist)
 	list_for_each_entry(evsel, &evlist->entries, node) {
 		struct hists *hists = &evsel->hists;
 
-		hists__collapse_resort(hists);
+		hists__collapse_resort(hists, NULL);
 	}
 }
 
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index e3598a456017..98d3891392e2 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -496,6 +496,7 @@ static int __cmd_report(struct perf_report *rep)
 	struct map *kernel_map;
 	struct kmap *kernel_kmap;
 	const char *help = "For a higher level overview, try: perf report --sort comm,dso";
+	struct ui_progress prog;
 	struct perf_data_file *file = session->file;
 
 	signal(SIGINT, sig_handler);
@@ -557,6 +558,12 @@ static int __cmd_report(struct perf_report *rep)
 		return 0;
 	}
 
+	nr_samples = 0;
+	list_for_each_entry(pos, &session->evlist->entries, node)
+		nr_samples += pos->hists.nr_entries;
+
+	ui_progress__init(&prog, nr_samples, "Merging related events...");
+
 	nr_samples = 0;
 	list_for_each_entry(pos, &session->evlist->entries, node) {
 		struct hists *hists = &pos->hists;
@@ -564,7 +571,7 @@ static int __cmd_report(struct perf_report *rep)
 		if (pos->idx == 0)
 			hists->symbol_filter_str = rep->symbol_filter_str;
 
-		hists__collapse_resort(hists);
+		hists__collapse_resort(hists, &prog);
 		nr_samples += hists->stats.nr_events[PERF_RECORD_SAMPLE];
 
 		/* Non-group events are considered as leader */
@@ -576,6 +583,7 @@ static int __cmd_report(struct perf_report *rep)
 			hists__link(leader_hists, hists);
 		}
 	}
+	ui_progress__finish();
 
 	if (session_done())
 		return 0;
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 386d83324a8d..76c9264ed070 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -286,7 +286,7 @@ static void perf_top__print_sym_table(struct perf_top *top)
 		return;
 	}
 
-	hists__collapse_resort(&top->sym_evsel->hists);
+	hists__collapse_resort(&top->sym_evsel->hists, NULL);
 	hists__output_resort(&top->sym_evsel->hists);
 	hists__decay_entries(&top->sym_evsel->hists,
 			     top->hide_user_symbols,
@@ -552,7 +552,7 @@ static void perf_top__sort_new_samples(void *arg)
 	if (t->evlist->selected != NULL)
 		t->sym_evsel = t->evlist->selected;
 
-	hists__collapse_resort(&t->sym_evsel->hists);
+	hists__collapse_resort(&t->sym_evsel->hists, NULL);
 	hists__output_resort(&t->sym_evsel->hists);
 	hists__decay_entries(&t->sym_evsel->hists,
 			     t->hide_user_symbols,
diff --git a/tools/perf/tests/hists_link.c b/tools/perf/tests/hists_link.c
index 025503a22ff7..b51abcb2c243 100644
--- a/tools/perf/tests/hists_link.c
+++ b/tools/perf/tests/hists_link.c
@@ -467,7 +467,7 @@ int test__hists_link(void)
 		goto out;
 
 	list_for_each_entry(evsel, &evlist->entries, node) {
-		hists__collapse_resort(&evsel->hists);
+		hists__collapse_resort(&evsel->hists, NULL);
 
 		if (verbose > 2)
 			print_hists(&evsel->hists);
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index f0b863ef4896..7e80253074b0 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -399,6 +399,7 @@ static struct hist_entry *add_hist_entry(struct hists *hists,
 	if (!he)
 		return NULL;
 
+	hists->nr_entries++;
 	rb_link_node(&he->rb_node_in, parent, p);
 	rb_insert_color(&he->rb_node_in, hists->entries_in);
 out:
@@ -604,7 +605,7 @@ static void hists__apply_filters(struct hists *hists, struct hist_entry *he)
 	hists__filter_entry_by_symbol(hists, he);
 }
 
-void hists__collapse_resort(struct hists *hists)
+void hists__collapse_resort(struct hists *hists, struct ui_progress *prog)
 {
 	struct rb_root *root;
 	struct rb_node *next;
@@ -631,6 +632,8 @@ void hists__collapse_resort(struct hists *hists)
 			 */
 			hists__apply_filters(hists, n);
 		}
+		if (prog)
+			ui_progress__update(prog, 1);
 	}
 }
 
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 20b175808cd3..0c7ce8bb8eba 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -5,6 +5,7 @@
 #include <pthread.h>
 #include "callchain.h"
 #include "header.h"
+#include "ui/progress.h"
 
 extern struct callchain_param callchain_param;
 
@@ -108,7 +109,7 @@ struct hist_entry *__hists__add_mem_entry(struct hists *self,
 					  u64 weight);
 
 void hists__output_resort(struct hists *self);
-void hists__collapse_resort(struct hists *self);
+void hists__collapse_resort(struct hists *self, struct ui_progress *prog);
 
 void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel);
 void hists__output_recalc_col_len(struct hists *hists, int max_rows);
-- 
cgit 


From 70a9883c5f34b215b8a77665cefd0398edc5a9ef Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Wed, 23 Oct 2013 10:36:05 +1100
Subject: xfs: create a shared header file for format-related information

All of the buffer operations structures are needed to be exported
for xfs_db, so move them all to a common location rather than
spreading them all over the place. They are verifying the on-disk
format, so while xfs_format.h might be a good place, it is not part
of the on disk format.

Hence we need to create a new header file that we centralise these
related definitions. Start by moving the bffer operations
structures, and then also move all the other definitions that have
crept into xfs_log_format.h and xfs_format.h as there was no other
shared header file to put them in.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_ag.h             |   4 -
 fs/xfs/xfs_alloc.c          |   3 +-
 fs/xfs/xfs_alloc.h          |   3 -
 fs/xfs/xfs_alloc_btree.h    |   2 -
 fs/xfs/xfs_aops.c           |   4 +-
 fs/xfs/xfs_attr.c           |   1 +
 fs/xfs/xfs_attr_inactive.c  |   1 +
 fs/xfs/xfs_attr_leaf.h      |   2 -
 fs/xfs/xfs_attr_remote.h    |   2 -
 fs/xfs/xfs_bmap.c           |   1 +
 fs/xfs/xfs_bmap_btree.h     |   2 -
 fs/xfs/xfs_bmap_util.c      |   1 +
 fs/xfs/xfs_btree.c          |   2 +-
 fs/xfs/xfs_da_btree.c       |   3 +-
 fs/xfs/xfs_da_btree.h       |   2 -
 fs/xfs/xfs_dquot.c          |   1 +
 fs/xfs/xfs_dquot.h          |   2 -
 fs/xfs/xfs_extent_busy.c    |   3 +-
 fs/xfs/xfs_file.c           |   1 +
 fs/xfs/xfs_format.h         |  10 --
 fs/xfs/xfs_fsops.c          |   2 +
 fs/xfs/xfs_ialloc.c         |   3 +-
 fs/xfs/xfs_ialloc.h         |   2 -
 fs/xfs/xfs_ialloc_btree.h   |   2 -
 fs/xfs/xfs_icreate_item.c   |   2 +-
 fs/xfs/xfs_inode.c          |   1 +
 fs/xfs/xfs_inode_buf.c      |   1 +
 fs/xfs/xfs_inode_buf.h      |   3 -
 fs/xfs/xfs_ioctl.c          |   1 +
 fs/xfs/xfs_iomap.c          |   1 +
 fs/xfs/xfs_iops.c           |   1 +
 fs/xfs/xfs_itable.c         |   2 +-
 fs/xfs/xfs_log.c            |   2 +-
 fs/xfs/xfs_log_cil.c        |   2 +-
 fs/xfs/xfs_log_format.h     | 177 --------------------------------
 fs/xfs/xfs_log_recover.c    |   1 +
 fs/xfs/xfs_log_rlimit.c     |   1 +
 fs/xfs/xfs_mount.c          |   1 +
 fs/xfs/xfs_qm.c             |   1 +
 fs/xfs/xfs_qm_syscalls.c    |   1 +
 fs/xfs/xfs_quota.h          |   2 -
 fs/xfs/xfs_rtalloc.c        |   1 +
 fs/xfs/xfs_sb.h             |   3 -
 fs/xfs/xfs_shared.h         | 244 ++++++++++++++++++++++++++++++++++++++++++++
 fs/xfs/xfs_super.c          |   1 +
 fs/xfs/xfs_symlink.c        |   1 +
 fs/xfs/xfs_symlink_remote.c |   1 +
 fs/xfs/xfs_trace.c          |   2 +-
 fs/xfs/xfs_trans.c          |   1 +
 fs/xfs/xfs_trans_buf.c      |   2 +-
 fs/xfs/xfs_trans_dquot.c    |   1 +
 fs/xfs/xfs_trans_extfree.c  |   2 +-
 fs/xfs/xfs_trans_inode.c    |   2 +-
 fs/xfs/xfs_trans_resv.c     |   1 +
 54 files changed, 289 insertions(+), 232 deletions(-)
 create mode 100644 fs/xfs/xfs_shared.h

diff --git a/fs/xfs/xfs_ag.h b/fs/xfs/xfs_ag.h
index 1cb740afd674..3fc109819c34 100644
--- a/fs/xfs/xfs_ag.h
+++ b/fs/xfs/xfs_ag.h
@@ -128,8 +128,6 @@ typedef struct xfs_agf {
 extern int xfs_read_agf(struct xfs_mount *mp, struct xfs_trans *tp,
 			xfs_agnumber_t agno, int flags, struct xfs_buf **bpp);
 
-extern const struct xfs_buf_ops xfs_agf_buf_ops;
-
 /*
  * Size of the unlinked inode hash table in the agi.
  */
@@ -191,8 +189,6 @@ typedef struct xfs_agi {
 extern int xfs_read_agi(struct xfs_mount *mp, struct xfs_trans *tp,
 				xfs_agnumber_t agno, struct xfs_buf **bpp);
 
-extern const struct xfs_buf_ops xfs_agi_buf_ops;
-
 /*
  * The third a.g. block contains the a.g. freelist, an array
  * of block pointers to blocks owned by the allocation btree code.
diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c
index 5a1393f5e020..2bfca06e0ee7 100644
--- a/fs/xfs/xfs_alloc.c
+++ b/fs/xfs/xfs_alloc.c
@@ -17,7 +17,8 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
+#include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_bit.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
diff --git a/fs/xfs/xfs_alloc.h b/fs/xfs/xfs_alloc.h
index 99d0a6101558..feacb061bab7 100644
--- a/fs/xfs/xfs_alloc.h
+++ b/fs/xfs/xfs_alloc.h
@@ -231,7 +231,4 @@ xfs_alloc_get_rec(
 	xfs_extlen_t		*len,	/* output: length of extent */
 	int			*stat);	/* output: success/failure */
 
-extern const struct xfs_buf_ops xfs_agf_buf_ops;
-extern const struct xfs_buf_ops xfs_agfl_buf_ops;
-
 #endif	/* __XFS_ALLOC_H__ */
diff --git a/fs/xfs/xfs_alloc_btree.h b/fs/xfs/xfs_alloc_btree.h
index e3a3f7424192..72676c36b1bb 100644
--- a/fs/xfs/xfs_alloc_btree.h
+++ b/fs/xfs/xfs_alloc_btree.h
@@ -95,6 +95,4 @@ extern struct xfs_btree_cur *xfs_allocbt_init_cursor(struct xfs_mount *,
 		xfs_agnumber_t, xfs_btnum_t);
 extern int xfs_allocbt_maxrecs(struct xfs_mount *, int, int);
 
-extern const struct xfs_buf_ops xfs_allocbt_buf_ops;
-
 #endif	/* __XFS_ALLOC_BTREE_H__ */
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index f3f95f094af8..2c61e9622f57 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -16,9 +16,11 @@
  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 #include "xfs.h"
-#include "xfs_log.h"
+#include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
+#include "xfs_log.h"
 #include "xfs_trans.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c
index ddcf2267ffa6..21af043bbee8 100644
--- a/fs/xfs/xfs_attr.c
+++ b/fs/xfs/xfs_attr.c
@@ -18,6 +18,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_bit.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
diff --git a/fs/xfs/xfs_attr_inactive.c b/fs/xfs/xfs_attr_inactive.c
index bb24b07cbedb..e90a8760bc3d 100644
--- a/fs/xfs/xfs_attr_inactive.c
+++ b/fs/xfs/xfs_attr_inactive.c
@@ -19,6 +19,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_bit.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
diff --git a/fs/xfs/xfs_attr_leaf.h b/fs/xfs/xfs_attr_leaf.h
index c1022138c7e6..da34e64b5323 100644
--- a/fs/xfs/xfs_attr_leaf.h
+++ b/fs/xfs/xfs_attr_leaf.h
@@ -336,6 +336,4 @@ void	xfs_attr3_leaf_hdr_from_disk(struct xfs_attr3_icleaf_hdr *to,
 void	xfs_attr3_leaf_hdr_to_disk(struct xfs_attr_leafblock *to,
 				   struct xfs_attr3_icleaf_hdr *from);
 
-extern const struct xfs_buf_ops xfs_attr3_leaf_buf_ops;
-
 #endif	/* __XFS_ATTR_LEAF_H__ */
diff --git a/fs/xfs/xfs_attr_remote.h b/fs/xfs/xfs_attr_remote.h
index 92a8fd7977cc..b3e1e1bdfb3b 100644
--- a/fs/xfs/xfs_attr_remote.h
+++ b/fs/xfs/xfs_attr_remote.h
@@ -45,8 +45,6 @@ struct xfs_attr3_rmt_hdr {
 	((bufsize) - (xfs_sb_version_hascrc(&(mp)->m_sb) ? \
 			sizeof(struct xfs_attr3_rmt_hdr) : 0))
 
-extern const struct xfs_buf_ops xfs_attr3_rmt_buf_ops;
-
 int xfs_attr3_rmt_blocks(struct xfs_mount *mp, int attrlen);
 
 int xfs_attr_rmtval_get(struct xfs_da_args *args);
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index e6b42026f9d4..6870aad5d815 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -18,6 +18,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_bit.h"
 #include "xfs_log.h"
 #include "xfs_inum.h"
diff --git a/fs/xfs/xfs_bmap_btree.h b/fs/xfs/xfs_bmap_btree.h
index e367461a638e..e2b0768a89ba 100644
--- a/fs/xfs/xfs_bmap_btree.h
+++ b/fs/xfs/xfs_bmap_btree.h
@@ -243,6 +243,4 @@ extern int xfs_bmbt_change_owner(struct xfs_trans *tp, struct xfs_inode *ip,
 extern struct xfs_btree_cur *xfs_bmbt_init_cursor(struct xfs_mount *,
 		struct xfs_trans *, struct xfs_inode *, int);
 
-extern const struct xfs_buf_ops xfs_bmbt_buf_ops;
-
 #endif	/* __XFS_BMAP_BTREE_H__ */
diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index 45cf5a2fd1bf..4f246628a900 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -19,6 +19,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_bit.h"
 #include "xfs_log.h"
 #include "xfs_inum.h"
diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c
index 5690e102243d..1a297e26e26c 100644
--- a/fs/xfs/xfs_btree.c
+++ b/fs/xfs/xfs_btree.c
@@ -17,7 +17,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
+#include "xfs_shared.h"
 #include "xfs_bit.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index 20bf8e8002d6..ac51abeb4782 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -18,7 +18,8 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
+#include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_bit.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
diff --git a/fs/xfs/xfs_da_btree.h b/fs/xfs/xfs_da_btree.h
index b1f267995dea..a762cfa4097d 100644
--- a/fs/xfs/xfs_da_btree.h
+++ b/fs/xfs/xfs_da_btree.h
@@ -309,8 +309,6 @@ int	xfs_da3_node_read(struct xfs_trans *tp, struct xfs_inode *dp,
 			 xfs_dablk_t bno, xfs_daddr_t mappedbno,
 			 struct xfs_buf **bpp, int which_fork);
 
-extern const struct xfs_buf_ops xfs_da3_node_buf_ops;
-
 /*
  * Utility routines.
  */
diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c
index 1ee776d477c3..8b1d2c0a9054 100644
--- a/fs/xfs/xfs_dquot.c
+++ b/fs/xfs/xfs_dquot.c
@@ -18,6 +18,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_bit.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
diff --git a/fs/xfs/xfs_dquot.h b/fs/xfs/xfs_dquot.h
index 55abbca2883d..d22ed0053c32 100644
--- a/fs/xfs/xfs_dquot.h
+++ b/fs/xfs/xfs_dquot.h
@@ -172,6 +172,4 @@ static inline struct xfs_dquot *xfs_qm_dqhold(struct xfs_dquot *dqp)
 	return dqp;
 }
 
-extern const struct xfs_buf_ops xfs_dquot_buf_ops;
-
 #endif /* __XFS_DQUOT_H__ */
diff --git a/fs/xfs/xfs_extent_busy.c b/fs/xfs/xfs_extent_busy.c
index e43708e2f080..74828a7895eb 100644
--- a/fs/xfs/xfs_extent_busy.c
+++ b/fs/xfs/xfs_extent_busy.c
@@ -19,7 +19,8 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
+#include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
 #include "xfs_sb.h"
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index c8a75a75e25a..57d95b2f8692 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -17,6 +17,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_shared.h"
 #include "xfs_log.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
diff --git a/fs/xfs/xfs_format.h b/fs/xfs/xfs_format.h
index 35c08ff54ca0..a790428f3bf4 100644
--- a/fs/xfs/xfs_format.h
+++ b/fs/xfs/xfs_format.h
@@ -156,14 +156,4 @@ struct xfs_dsymlink_hdr {
 	((bufsize) - (xfs_sb_version_hascrc(&(mp)->m_sb) ? \
 			sizeof(struct xfs_dsymlink_hdr) : 0))
 
-int xfs_symlink_blocks(struct xfs_mount *mp, int pathlen);
-int xfs_symlink_hdr_set(struct xfs_mount *mp, xfs_ino_t ino, uint32_t offset,
-			uint32_t size, struct xfs_buf *bp);
-bool xfs_symlink_hdr_ok(struct xfs_mount *mp, xfs_ino_t ino, uint32_t offset,
-			uint32_t size, struct xfs_buf *bp);
-void xfs_symlink_local_to_remote(struct xfs_trans *tp, struct xfs_buf *bp,
-				 struct xfs_inode *ip, struct xfs_ifork *ifp);
-
-extern const struct xfs_buf_ops xfs_symlink_buf_ops;
-
 #endif /* __XFS_FORMAT_H__ */
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index 76c7b2b4fa8d..e5d2c43c65c4 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -18,6 +18,8 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_types.h"
+#include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
 #include "xfs_sb.h"
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index ccf2fb143962..8530cabf128d 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -17,7 +17,8 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
+#include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_bit.h"
 #include "xfs_log.h"
 #include "xfs_inum.h"
diff --git a/fs/xfs/xfs_ialloc.h b/fs/xfs/xfs_ialloc.h
index 68c07320f096..155779803d67 100644
--- a/fs/xfs/xfs_ialloc.h
+++ b/fs/xfs/xfs_ialloc.h
@@ -158,6 +158,4 @@ int xfs_ialloc_inode_init(struct xfs_mount *mp, struct xfs_trans *tp,
 			  xfs_agnumber_t agno, xfs_agblock_t agbno,
 			  xfs_agblock_t length, unsigned int gen);
 
-extern const struct xfs_buf_ops xfs_agi_buf_ops;
-
 #endif	/* __XFS_IALLOC_H__ */
diff --git a/fs/xfs/xfs_ialloc_btree.h b/fs/xfs/xfs_ialloc_btree.h
index 3ac36b7642e9..cfbfe461abbc 100644
--- a/fs/xfs/xfs_ialloc_btree.h
+++ b/fs/xfs/xfs_ialloc_btree.h
@@ -110,6 +110,4 @@ extern struct xfs_btree_cur *xfs_inobt_init_cursor(struct xfs_mount *,
 		struct xfs_trans *, struct xfs_buf *, xfs_agnumber_t);
 extern int xfs_inobt_maxrecs(struct xfs_mount *, int, int);
 
-extern const struct xfs_buf_ops xfs_inobt_buf_ops;
-
 #endif	/* __XFS_IALLOC_BTREE_H__ */
diff --git a/fs/xfs/xfs_icreate_item.c b/fs/xfs/xfs_icreate_item.c
index 5a5a593994d4..df8baf38eb85 100644
--- a/fs/xfs/xfs_icreate_item.c
+++ b/fs/xfs/xfs_icreate_item.c
@@ -17,7 +17,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
+#include "xfs_shared.h"
 #include "xfs_bit.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 5fce7261a64b..1aaef689794d 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -20,6 +20,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_log.h"
 #include "xfs_inum.h"
 #include "xfs_trans.h"
diff --git a/fs/xfs/xfs_inode_buf.c b/fs/xfs/xfs_inode_buf.c
index 63382d37f565..65fa56edecf3 100644
--- a/fs/xfs/xfs_inode_buf.c
+++ b/fs/xfs/xfs_inode_buf.c
@@ -18,6 +18,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
 #include "xfs_sb.h"
diff --git a/fs/xfs/xfs_inode_buf.h b/fs/xfs/xfs_inode_buf.h
index abba0ae8cf2d..9308c47f2a52 100644
--- a/fs/xfs/xfs_inode_buf.h
+++ b/fs/xfs/xfs_inode_buf.h
@@ -47,7 +47,4 @@ void	xfs_inobp_check(struct xfs_mount *, struct xfs_buf *);
 #define	xfs_inobp_check(mp, bp)
 #endif /* DEBUG */
 
-extern const struct xfs_buf_ops xfs_inode_buf_ops;
-extern const struct xfs_buf_ops xfs_inode_buf_ra_ops;
-
 #endif	/* __XFS_INODE_BUF_H__ */
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index e448d735346b..c6c62d12a934 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -18,6 +18,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
 #include "xfs_sb.h"
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index 338b33263c56..d8fb6dfe75ed 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -18,6 +18,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
 #include "xfs_sb.h"
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 52ecd1ccec9f..24fe333b8c41 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -18,6 +18,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_acl.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
index 084b3e1741fd..4f50e637f33b 100644
--- a/fs/xfs/xfs_itable.c
+++ b/fs/xfs/xfs_itable.c
@@ -17,7 +17,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
+#include "xfs_shared.h"
 #include "xfs_log.h"
 #include "xfs_inum.h"
 #include "xfs_trans.h"
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 0461f0872244..fbaf70af3d61 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -17,7 +17,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
+#include "xfs_shared.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
 #include "xfs_sb.h"
diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c
index da8524e779b6..a844f77d2cc3 100644
--- a/fs/xfs/xfs_log_cil.c
+++ b/fs/xfs/xfs_log_cil.c
@@ -17,7 +17,7 @@
 
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
+#include "xfs_shared.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
 #include "xfs_trans_priv.h"
diff --git a/fs/xfs/xfs_log_format.h b/fs/xfs/xfs_log_format.h
index ca7e28a8ed31..f0969c77bdbe 100644
--- a/fs/xfs/xfs_log_format.h
+++ b/fs/xfs/xfs_log_format.h
@@ -233,178 +233,6 @@ typedef struct xfs_trans_header {
 	{ XFS_LI_QUOTAOFF,	"XFS_LI_QUOTAOFF" }, \
 	{ XFS_LI_ICREATE,	"XFS_LI_ICREATE" }
 
-/*
- * Transaction types.  Used to distinguish types of buffers.
- */
-#define XFS_TRANS_SETATTR_NOT_SIZE	1
-#define XFS_TRANS_SETATTR_SIZE		2
-#define XFS_TRANS_INACTIVE		3
-#define XFS_TRANS_CREATE		4
-#define XFS_TRANS_CREATE_TRUNC		5
-#define XFS_TRANS_TRUNCATE_FILE		6
-#define XFS_TRANS_REMOVE		7
-#define XFS_TRANS_LINK			8
-#define XFS_TRANS_RENAME		9
-#define XFS_TRANS_MKDIR			10
-#define XFS_TRANS_RMDIR			11
-#define XFS_TRANS_SYMLINK		12
-#define XFS_TRANS_SET_DMATTRS		13
-#define XFS_TRANS_GROWFS		14
-#define XFS_TRANS_STRAT_WRITE		15
-#define XFS_TRANS_DIOSTRAT		16
-/* 17 was XFS_TRANS_WRITE_SYNC */
-#define	XFS_TRANS_WRITEID		18
-#define	XFS_TRANS_ADDAFORK		19
-#define	XFS_TRANS_ATTRINVAL		20
-#define	XFS_TRANS_ATRUNCATE		21
-#define	XFS_TRANS_ATTR_SET		22
-#define	XFS_TRANS_ATTR_RM		23
-#define	XFS_TRANS_ATTR_FLAG		24
-#define	XFS_TRANS_CLEAR_AGI_BUCKET	25
-#define XFS_TRANS_QM_SBCHANGE		26
-/*
- * Dummy entries since we use the transaction type to index into the
- * trans_type[] in xlog_recover_print_trans_head()
- */
-#define XFS_TRANS_DUMMY1		27
-#define XFS_TRANS_DUMMY2		28
-#define XFS_TRANS_QM_QUOTAOFF		29
-#define XFS_TRANS_QM_DQALLOC		30
-#define XFS_TRANS_QM_SETQLIM		31
-#define XFS_TRANS_QM_DQCLUSTER		32
-#define XFS_TRANS_QM_QINOCREATE		33
-#define XFS_TRANS_QM_QUOTAOFF_END	34
-#define XFS_TRANS_SB_UNIT		35
-#define XFS_TRANS_FSYNC_TS		36
-#define	XFS_TRANS_GROWFSRT_ALLOC	37
-#define	XFS_TRANS_GROWFSRT_ZERO		38
-#define	XFS_TRANS_GROWFSRT_FREE		39
-#define	XFS_TRANS_SWAPEXT		40
-#define	XFS_TRANS_SB_COUNT		41
-#define	XFS_TRANS_CHECKPOINT		42
-#define	XFS_TRANS_ICREATE		43
-#define	XFS_TRANS_TYPE_MAX		43
-/* new transaction types need to be reflected in xfs_logprint(8) */
-
-#define XFS_TRANS_TYPES \
-	{ XFS_TRANS_SETATTR_NOT_SIZE,	"SETATTR_NOT_SIZE" }, \
-	{ XFS_TRANS_SETATTR_SIZE,	"SETATTR_SIZE" }, \
-	{ XFS_TRANS_INACTIVE,		"INACTIVE" }, \
-	{ XFS_TRANS_CREATE,		"CREATE" }, \
-	{ XFS_TRANS_CREATE_TRUNC,	"CREATE_TRUNC" }, \
-	{ XFS_TRANS_TRUNCATE_FILE,	"TRUNCATE_FILE" }, \
-	{ XFS_TRANS_REMOVE,		"REMOVE" }, \
-	{ XFS_TRANS_LINK,		"LINK" }, \
-	{ XFS_TRANS_RENAME,		"RENAME" }, \
-	{ XFS_TRANS_MKDIR,		"MKDIR" }, \
-	{ XFS_TRANS_RMDIR,		"RMDIR" }, \
-	{ XFS_TRANS_SYMLINK,		"SYMLINK" }, \
-	{ XFS_TRANS_SET_DMATTRS,	"SET_DMATTRS" }, \
-	{ XFS_TRANS_GROWFS,		"GROWFS" }, \
-	{ XFS_TRANS_STRAT_WRITE,	"STRAT_WRITE" }, \
-	{ XFS_TRANS_DIOSTRAT,		"DIOSTRAT" }, \
-	{ XFS_TRANS_WRITEID,		"WRITEID" }, \
-	{ XFS_TRANS_ADDAFORK,		"ADDAFORK" }, \
-	{ XFS_TRANS_ATTRINVAL,		"ATTRINVAL" }, \
-	{ XFS_TRANS_ATRUNCATE,		"ATRUNCATE" }, \
-	{ XFS_TRANS_ATTR_SET,		"ATTR_SET" }, \
-	{ XFS_TRANS_ATTR_RM,		"ATTR_RM" }, \
-	{ XFS_TRANS_ATTR_FLAG,		"ATTR_FLAG" }, \
-	{ XFS_TRANS_CLEAR_AGI_BUCKET,	"CLEAR_AGI_BUCKET" }, \
-	{ XFS_TRANS_QM_SBCHANGE,	"QM_SBCHANGE" }, \
-	{ XFS_TRANS_QM_QUOTAOFF,	"QM_QUOTAOFF" }, \
-	{ XFS_TRANS_QM_DQALLOC,		"QM_DQALLOC" }, \
-	{ XFS_TRANS_QM_SETQLIM,		"QM_SETQLIM" }, \
-	{ XFS_TRANS_QM_DQCLUSTER,	"QM_DQCLUSTER" }, \
-	{ XFS_TRANS_QM_QINOCREATE,	"QM_QINOCREATE" }, \
-	{ XFS_TRANS_QM_QUOTAOFF_END,	"QM_QOFF_END" }, \
-	{ XFS_TRANS_SB_UNIT,		"SB_UNIT" }, \
-	{ XFS_TRANS_FSYNC_TS,		"FSYNC_TS" }, \
-	{ XFS_TRANS_GROWFSRT_ALLOC,	"GROWFSRT_ALLOC" }, \
-	{ XFS_TRANS_GROWFSRT_ZERO,	"GROWFSRT_ZERO" }, \
-	{ XFS_TRANS_GROWFSRT_FREE,	"GROWFSRT_FREE" }, \
-	{ XFS_TRANS_SWAPEXT,		"SWAPEXT" }, \
-	{ XFS_TRANS_SB_COUNT,		"SB_COUNT" }, \
-	{ XFS_TRANS_CHECKPOINT,		"CHECKPOINT" }, \
-	{ XFS_TRANS_DUMMY1,		"DUMMY1" }, \
-	{ XFS_TRANS_DUMMY2,		"DUMMY2" }, \
-	{ XLOG_UNMOUNT_REC_TYPE,	"UNMOUNT" }
-
-/*
- * This structure is used to track log items associated with
- * a transaction.  It points to the log item and keeps some
- * flags to track the state of the log item.  It also tracks
- * the amount of space needed to log the item it describes
- * once we get to commit processing (see xfs_trans_commit()).
- */
-struct xfs_log_item_desc {
-	struct xfs_log_item	*lid_item;
-	struct list_head	lid_trans;
-	unsigned char		lid_flags;
-};
-
-#define XFS_LID_DIRTY		0x1
-
-/*
- * Values for t_flags.
- */
-#define	XFS_TRANS_DIRTY		0x01	/* something needs to be logged */
-#define	XFS_TRANS_SB_DIRTY	0x02	/* superblock is modified */
-#define	XFS_TRANS_PERM_LOG_RES	0x04	/* xact took a permanent log res */
-#define	XFS_TRANS_SYNC		0x08	/* make commit synchronous */
-#define XFS_TRANS_DQ_DIRTY	0x10	/* at least one dquot in trx dirty */
-#define XFS_TRANS_RESERVE	0x20    /* OK to use reserved data blocks */
-#define XFS_TRANS_FREEZE_PROT	0x40	/* Transaction has elevated writer
-					   count in superblock */
-
-/*
- * Values for call flags parameter.
- */
-#define	XFS_TRANS_RELEASE_LOG_RES	0x4
-#define	XFS_TRANS_ABORT			0x8
-
-/*
- * Field values for xfs_trans_mod_sb.
- */
-#define	XFS_TRANS_SB_ICOUNT		0x00000001
-#define	XFS_TRANS_SB_IFREE		0x00000002
-#define	XFS_TRANS_SB_FDBLOCKS		0x00000004
-#define	XFS_TRANS_SB_RES_FDBLOCKS	0x00000008
-#define	XFS_TRANS_SB_FREXTENTS		0x00000010
-#define	XFS_TRANS_SB_RES_FREXTENTS	0x00000020
-#define	XFS_TRANS_SB_DBLOCKS		0x00000040
-#define	XFS_TRANS_SB_AGCOUNT		0x00000080
-#define	XFS_TRANS_SB_IMAXPCT		0x00000100
-#define	XFS_TRANS_SB_REXTSIZE		0x00000200
-#define	XFS_TRANS_SB_RBMBLOCKS		0x00000400
-#define	XFS_TRANS_SB_RBLOCKS		0x00000800
-#define	XFS_TRANS_SB_REXTENTS		0x00001000
-#define	XFS_TRANS_SB_REXTSLOG		0x00002000
-
-/*
- * Here we centralize the specification of XFS meta-data buffer
- * reference count values.  This determine how hard the buffer
- * cache tries to hold onto the buffer.
- */
-#define	XFS_AGF_REF		4
-#define	XFS_AGI_REF		4
-#define	XFS_AGFL_REF		3
-#define	XFS_INO_BTREE_REF	3
-#define	XFS_ALLOC_BTREE_REF	2
-#define	XFS_BMAP_BTREE_REF	2
-#define	XFS_DIR_BTREE_REF	2
-#define	XFS_INO_REF		2
-#define	XFS_ATTR_BTREE_REF	1
-#define	XFS_DQUOT_REF		1
-
-/*
- * Flags for xfs_trans_ichgtime().
- */
-#define	XFS_ICHGTIME_MOD	0x1	/* data fork modification timestamp */
-#define	XFS_ICHGTIME_CHG	0x2	/* inode field change timestamp */
-#define	XFS_ICHGTIME_CREATE	0x4	/* inode create timestamp */
-
-
 /*
  * Inode Log Item Format definitions.
  *
@@ -797,7 +625,6 @@ typedef struct xfs_qoff_logformat {
 	char			qf_pad[12];	/* padding for future */
 } xfs_qoff_logformat_t;
 
-
 /*
  * Disk quotas status in m_qflags, and also sb_qflags. 16 bits.
  */
@@ -849,8 +676,4 @@ struct xfs_icreate_log {
 	__be32		icl_gen;	/* inode generation number to use */
 };
 
-int	xfs_log_calc_unit_res(struct xfs_mount *mp, int unit_bytes);
-int	xfs_log_calc_minimum_size(struct xfs_mount *);
-
-
 #endif /* __XFS_LOG_FORMAT_H__ */
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index e7ca48e8f515..cbefc1235083 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -18,6 +18,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_bit.h"
 #include "xfs_log.h"
 #include "xfs_inum.h"
diff --git a/fs/xfs/xfs_log_rlimit.c b/fs/xfs/xfs_log_rlimit.c
index bbcec0bbc12d..0961310abe46 100644
--- a/fs/xfs/xfs_log_rlimit.c
+++ b/fs/xfs/xfs_log_rlimit.c
@@ -17,6 +17,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_shared.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
 #include "xfs_ag.h"
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 5dcc68019d1b..9515f96b4ab7 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -18,6 +18,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_bit.h"
 #include "xfs_log.h"
 #include "xfs_inum.h"
diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
index 3e6c2e6c9cd2..dc2d4f7ad7c9 100644
--- a/fs/xfs/xfs_qm.c
+++ b/fs/xfs/xfs_qm.c
@@ -18,6 +18,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_bit.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c
index fb6709191811..174390703eb6 100644
--- a/fs/xfs/xfs_qm_syscalls.c
+++ b/fs/xfs/xfs_qm_syscalls.c
@@ -21,6 +21,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_bit.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
diff --git a/fs/xfs/xfs_quota.h b/fs/xfs/xfs_quota.h
index e7d84d2d8683..84661d4431fa 100644
--- a/fs/xfs/xfs_quota.h
+++ b/fs/xfs/xfs_quota.h
@@ -154,6 +154,4 @@ extern int xfs_qm_dqcheck(struct xfs_mount *, xfs_disk_dquot_t *,
 				xfs_dqid_t, uint, uint, char *);
 extern int xfs_mount_reset_sbqflags(struct xfs_mount *);
 
-extern const struct xfs_buf_ops xfs_dquot_buf_ops;
-
 #endif	/* __XFS_QUOTA_H__ */
diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c
index 6f9e63c9fc26..6f63de303e8e 100644
--- a/fs/xfs/xfs_rtalloc.c
+++ b/fs/xfs/xfs_rtalloc.c
@@ -18,6 +18,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_bit.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
diff --git a/fs/xfs/xfs_sb.h b/fs/xfs/xfs_sb.h
index 6835b44f850e..35061d4b614c 100644
--- a/fs/xfs/xfs_sb.h
+++ b/fs/xfs/xfs_sb.h
@@ -699,7 +699,4 @@ extern void	xfs_sb_from_disk(struct xfs_sb *, struct xfs_dsb *);
 extern void	xfs_sb_to_disk(struct xfs_dsb *, struct xfs_sb *, __int64_t);
 extern void	xfs_sb_quota_from_disk(struct xfs_sb *sbp);
 
-extern const struct xfs_buf_ops xfs_sb_buf_ops;
-extern const struct xfs_buf_ops xfs_sb_quiet_buf_ops;
-
 #endif	/* __XFS_SB_H__ */
diff --git a/fs/xfs/xfs_shared.h b/fs/xfs/xfs_shared.h
new file mode 100644
index 000000000000..8c5035a13df1
--- /dev/null
+++ b/fs/xfs/xfs_shared.h
@@ -0,0 +1,244 @@
+/*
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc.
+ * Copyright (c) 2013 Red Hat, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#ifndef __XFS_SHARED_H__
+#define __XFS_SHARED_H__
+
+/*
+ * Definitions shared between kernel and userspace that don't fit into any other
+ * header file that is shared with userspace.
+ */
+struct xfs_ifork;
+struct xfs_buf;
+struct xfs_buf_ops;
+struct xfs_mount;
+struct xfs_trans;
+struct xfs_inode;
+
+/*
+ * Buffer verifier operations are widely used, including userspace tools
+ */
+extern const struct xfs_buf_ops xfs_agf_buf_ops;
+extern const struct xfs_buf_ops xfs_agi_buf_ops;
+extern const struct xfs_buf_ops xfs_agf_buf_ops;
+extern const struct xfs_buf_ops xfs_agfl_buf_ops;
+extern const struct xfs_buf_ops xfs_allocbt_buf_ops;
+extern const struct xfs_buf_ops xfs_attr3_leaf_buf_ops;
+extern const struct xfs_buf_ops xfs_attr3_rmt_buf_ops;
+extern const struct xfs_buf_ops xfs_bmbt_buf_ops;
+extern const struct xfs_buf_ops xfs_da3_node_buf_ops;
+extern const struct xfs_buf_ops xfs_dquot_buf_ops;
+extern const struct xfs_buf_ops xfs_symlink_buf_ops;
+extern const struct xfs_buf_ops xfs_agi_buf_ops;
+extern const struct xfs_buf_ops xfs_inobt_buf_ops;
+extern const struct xfs_buf_ops xfs_inode_buf_ops;
+extern const struct xfs_buf_ops xfs_inode_buf_ra_ops;
+extern const struct xfs_buf_ops xfs_dquot_buf_ops;
+extern const struct xfs_buf_ops xfs_sb_buf_ops;
+extern const struct xfs_buf_ops xfs_sb_quiet_buf_ops;
+extern const struct xfs_buf_ops xfs_symlink_buf_ops;
+
+/*
+ * Transaction types.  Used to distinguish types of buffers. These never reach
+ * the log.
+ */
+#define XFS_TRANS_SETATTR_NOT_SIZE	1
+#define XFS_TRANS_SETATTR_SIZE		2
+#define XFS_TRANS_INACTIVE		3
+#define XFS_TRANS_CREATE		4
+#define XFS_TRANS_CREATE_TRUNC		5
+#define XFS_TRANS_TRUNCATE_FILE		6
+#define XFS_TRANS_REMOVE		7
+#define XFS_TRANS_LINK			8
+#define XFS_TRANS_RENAME		9
+#define XFS_TRANS_MKDIR			10
+#define XFS_TRANS_RMDIR			11
+#define XFS_TRANS_SYMLINK		12
+#define XFS_TRANS_SET_DMATTRS		13
+#define XFS_TRANS_GROWFS		14
+#define XFS_TRANS_STRAT_WRITE		15
+#define XFS_TRANS_DIOSTRAT		16
+/* 17 was XFS_TRANS_WRITE_SYNC */
+#define	XFS_TRANS_WRITEID		18
+#define	XFS_TRANS_ADDAFORK		19
+#define	XFS_TRANS_ATTRINVAL		20
+#define	XFS_TRANS_ATRUNCATE		21
+#define	XFS_TRANS_ATTR_SET		22
+#define	XFS_TRANS_ATTR_RM		23
+#define	XFS_TRANS_ATTR_FLAG		24
+#define	XFS_TRANS_CLEAR_AGI_BUCKET	25
+#define XFS_TRANS_QM_SBCHANGE		26
+/*
+ * Dummy entries since we use the transaction type to index into the
+ * trans_type[] in xlog_recover_print_trans_head()
+ */
+#define XFS_TRANS_DUMMY1		27
+#define XFS_TRANS_DUMMY2		28
+#define XFS_TRANS_QM_QUOTAOFF		29
+#define XFS_TRANS_QM_DQALLOC		30
+#define XFS_TRANS_QM_SETQLIM		31
+#define XFS_TRANS_QM_DQCLUSTER		32
+#define XFS_TRANS_QM_QINOCREATE		33
+#define XFS_TRANS_QM_QUOTAOFF_END	34
+#define XFS_TRANS_SB_UNIT		35
+#define XFS_TRANS_FSYNC_TS		36
+#define	XFS_TRANS_GROWFSRT_ALLOC	37
+#define	XFS_TRANS_GROWFSRT_ZERO		38
+#define	XFS_TRANS_GROWFSRT_FREE		39
+#define	XFS_TRANS_SWAPEXT		40
+#define	XFS_TRANS_SB_COUNT		41
+#define	XFS_TRANS_CHECKPOINT		42
+#define	XFS_TRANS_ICREATE		43
+#define	XFS_TRANS_TYPE_MAX		43
+/* new transaction types need to be reflected in xfs_logprint(8) */
+
+#define XFS_TRANS_TYPES \
+	{ XFS_TRANS_SETATTR_NOT_SIZE,	"SETATTR_NOT_SIZE" }, \
+	{ XFS_TRANS_SETATTR_SIZE,	"SETATTR_SIZE" }, \
+	{ XFS_TRANS_INACTIVE,		"INACTIVE" }, \
+	{ XFS_TRANS_CREATE,		"CREATE" }, \
+	{ XFS_TRANS_CREATE_TRUNC,	"CREATE_TRUNC" }, \
+	{ XFS_TRANS_TRUNCATE_FILE,	"TRUNCATE_FILE" }, \
+	{ XFS_TRANS_REMOVE,		"REMOVE" }, \
+	{ XFS_TRANS_LINK,		"LINK" }, \
+	{ XFS_TRANS_RENAME,		"RENAME" }, \
+	{ XFS_TRANS_MKDIR,		"MKDIR" }, \
+	{ XFS_TRANS_RMDIR,		"RMDIR" }, \
+	{ XFS_TRANS_SYMLINK,		"SYMLINK" }, \
+	{ XFS_TRANS_SET_DMATTRS,	"SET_DMATTRS" }, \
+	{ XFS_TRANS_GROWFS,		"GROWFS" }, \
+	{ XFS_TRANS_STRAT_WRITE,	"STRAT_WRITE" }, \
+	{ XFS_TRANS_DIOSTRAT,		"DIOSTRAT" }, \
+	{ XFS_TRANS_WRITEID,		"WRITEID" }, \
+	{ XFS_TRANS_ADDAFORK,		"ADDAFORK" }, \
+	{ XFS_TRANS_ATTRINVAL,		"ATTRINVAL" }, \
+	{ XFS_TRANS_ATRUNCATE,		"ATRUNCATE" }, \
+	{ XFS_TRANS_ATTR_SET,		"ATTR_SET" }, \
+	{ XFS_TRANS_ATTR_RM,		"ATTR_RM" }, \
+	{ XFS_TRANS_ATTR_FLAG,		"ATTR_FLAG" }, \
+	{ XFS_TRANS_CLEAR_AGI_BUCKET,	"CLEAR_AGI_BUCKET" }, \
+	{ XFS_TRANS_QM_SBCHANGE,	"QM_SBCHANGE" }, \
+	{ XFS_TRANS_QM_QUOTAOFF,	"QM_QUOTAOFF" }, \
+	{ XFS_TRANS_QM_DQALLOC,		"QM_DQALLOC" }, \
+	{ XFS_TRANS_QM_SETQLIM,		"QM_SETQLIM" }, \
+	{ XFS_TRANS_QM_DQCLUSTER,	"QM_DQCLUSTER" }, \
+	{ XFS_TRANS_QM_QINOCREATE,	"QM_QINOCREATE" }, \
+	{ XFS_TRANS_QM_QUOTAOFF_END,	"QM_QOFF_END" }, \
+	{ XFS_TRANS_SB_UNIT,		"SB_UNIT" }, \
+	{ XFS_TRANS_FSYNC_TS,		"FSYNC_TS" }, \
+	{ XFS_TRANS_GROWFSRT_ALLOC,	"GROWFSRT_ALLOC" }, \
+	{ XFS_TRANS_GROWFSRT_ZERO,	"GROWFSRT_ZERO" }, \
+	{ XFS_TRANS_GROWFSRT_FREE,	"GROWFSRT_FREE" }, \
+	{ XFS_TRANS_SWAPEXT,		"SWAPEXT" }, \
+	{ XFS_TRANS_SB_COUNT,		"SB_COUNT" }, \
+	{ XFS_TRANS_CHECKPOINT,		"CHECKPOINT" }, \
+	{ XFS_TRANS_DUMMY1,		"DUMMY1" }, \
+	{ XFS_TRANS_DUMMY2,		"DUMMY2" }, \
+	{ XLOG_UNMOUNT_REC_TYPE,	"UNMOUNT" }
+
+/*
+ * This structure is used to track log items associated with
+ * a transaction.  It points to the log item and keeps some
+ * flags to track the state of the log item.  It also tracks
+ * the amount of space needed to log the item it describes
+ * once we get to commit processing (see xfs_trans_commit()).
+ */
+struct xfs_log_item_desc {
+	struct xfs_log_item	*lid_item;
+	struct list_head	lid_trans;
+	unsigned char		lid_flags;
+};
+
+#define XFS_LID_DIRTY		0x1
+
+/* log size calculation functions */
+int	xfs_log_calc_unit_res(struct xfs_mount *mp, int unit_bytes);
+int	xfs_log_calc_minimum_size(struct xfs_mount *);
+
+
+/*
+ * Values for t_flags.
+ */
+#define	XFS_TRANS_DIRTY		0x01	/* something needs to be logged */
+#define	XFS_TRANS_SB_DIRTY	0x02	/* superblock is modified */
+#define	XFS_TRANS_PERM_LOG_RES	0x04	/* xact took a permanent log res */
+#define	XFS_TRANS_SYNC		0x08	/* make commit synchronous */
+#define XFS_TRANS_DQ_DIRTY	0x10	/* at least one dquot in trx dirty */
+#define XFS_TRANS_RESERVE	0x20    /* OK to use reserved data blocks */
+#define XFS_TRANS_FREEZE_PROT	0x40	/* Transaction has elevated writer
+					   count in superblock */
+/*
+ * Values for call flags parameter.
+ */
+#define	XFS_TRANS_RELEASE_LOG_RES	0x4
+#define	XFS_TRANS_ABORT			0x8
+
+/*
+ * Field values for xfs_trans_mod_sb.
+ */
+#define	XFS_TRANS_SB_ICOUNT		0x00000001
+#define	XFS_TRANS_SB_IFREE		0x00000002
+#define	XFS_TRANS_SB_FDBLOCKS		0x00000004
+#define	XFS_TRANS_SB_RES_FDBLOCKS	0x00000008
+#define	XFS_TRANS_SB_FREXTENTS		0x00000010
+#define	XFS_TRANS_SB_RES_FREXTENTS	0x00000020
+#define	XFS_TRANS_SB_DBLOCKS		0x00000040
+#define	XFS_TRANS_SB_AGCOUNT		0x00000080
+#define	XFS_TRANS_SB_IMAXPCT		0x00000100
+#define	XFS_TRANS_SB_REXTSIZE		0x00000200
+#define	XFS_TRANS_SB_RBMBLOCKS		0x00000400
+#define	XFS_TRANS_SB_RBLOCKS		0x00000800
+#define	XFS_TRANS_SB_REXTENTS		0x00001000
+#define	XFS_TRANS_SB_REXTSLOG		0x00002000
+
+/*
+ * Here we centralize the specification of XFS meta-data buffer reference count
+ * values.  This determines how hard the buffer cache tries to hold onto the
+ * buffer.
+ */
+#define	XFS_AGF_REF		4
+#define	XFS_AGI_REF		4
+#define	XFS_AGFL_REF		3
+#define	XFS_INO_BTREE_REF	3
+#define	XFS_ALLOC_BTREE_REF	2
+#define	XFS_BMAP_BTREE_REF	2
+#define	XFS_DIR_BTREE_REF	2
+#define	XFS_INO_REF		2
+#define	XFS_ATTR_BTREE_REF	1
+#define	XFS_DQUOT_REF		1
+
+/*
+ * Flags for xfs_trans_ichgtime().
+ */
+#define	XFS_ICHGTIME_MOD	0x1	/* data fork modification timestamp */
+#define	XFS_ICHGTIME_CHG	0x2	/* inode field change timestamp */
+#define	XFS_ICHGTIME_CREATE	0x4	/* inode create timestamp */
+
+
+/*
+ * Symlink decoding/encoding functions
+ */
+int xfs_symlink_blocks(struct xfs_mount *mp, int pathlen);
+int xfs_symlink_hdr_set(struct xfs_mount *mp, xfs_ino_t ino, uint32_t offset,
+			uint32_t size, struct xfs_buf *bp);
+bool xfs_symlink_hdr_ok(struct xfs_mount *mp, xfs_ino_t ino, uint32_t offset,
+			uint32_t size, struct xfs_buf *bp);
+void xfs_symlink_local_to_remote(struct xfs_trans *tp, struct xfs_buf *bp,
+				 struct xfs_inode *ip, struct xfs_ifork *ifp);
+
+#endif /* __XFS_SHARED_H__ */
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index c2e3e9535b26..4886b35b1ef1 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -18,6 +18,7 @@
 
 #include "xfs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_log.h"
 #include "xfs_inum.h"
 #include "xfs_trans.h"
diff --git a/fs/xfs/xfs_symlink.c b/fs/xfs/xfs_symlink.c
index ded282b10bc2..cba781edb192 100644
--- a/fs/xfs/xfs_symlink.c
+++ b/fs/xfs/xfs_symlink.c
@@ -19,6 +19,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_bit.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
diff --git a/fs/xfs/xfs_symlink_remote.c b/fs/xfs/xfs_symlink_remote.c
index 01c85e3f6470..4251cd8e8fec 100644
--- a/fs/xfs/xfs_symlink_remote.c
+++ b/fs/xfs/xfs_symlink_remote.c
@@ -19,6 +19,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
 #include "xfs_ag.h"
diff --git a/fs/xfs/xfs_trace.c b/fs/xfs/xfs_trace.c
index 5d7b3e40705f..29705391c896 100644
--- a/fs/xfs/xfs_trace.c
+++ b/fs/xfs/xfs_trace.c
@@ -17,8 +17,8 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
 #include "xfs_sb.h"
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index 5411e01ab452..3693ce279143 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -19,6 +19,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
 #include "xfs_sb.h"
diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c
index 8c75b8f67270..0167a65ec851 100644
--- a/fs/xfs/xfs_trans_buf.c
+++ b/fs/xfs/xfs_trans_buf.c
@@ -17,7 +17,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
+#include "xfs_shared.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
 #include "xfs_sb.h"
diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c
index 54ee3c5dee76..4d630d2c2804 100644
--- a/fs/xfs/xfs_trans_dquot.c
+++ b/fs/xfs/xfs_trans_dquot.c
@@ -18,6 +18,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
 #include "xfs_sb.h"
diff --git a/fs/xfs/xfs_trans_extfree.c b/fs/xfs/xfs_trans_extfree.c
index 8d71b16eccae..3bfb98bec050 100644
--- a/fs/xfs/xfs_trans_extfree.c
+++ b/fs/xfs/xfs_trans_extfree.c
@@ -17,7 +17,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
+#include "xfs_shared.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
 #include "xfs_sb.h"
diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c
index 53dfe46f3680..dcab52ec9cb6 100644
--- a/fs/xfs/xfs_trans_inode.c
+++ b/fs/xfs/xfs_trans_inode.c
@@ -17,7 +17,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
+#include "xfs_shared.h"
 #include "xfs_log.h"
 #include "xfs_trans.h"
 #include "xfs_sb.h"
diff --git a/fs/xfs/xfs_trans_resv.c b/fs/xfs/xfs_trans_resv.c
index a65a3cc40610..b5d952dbe6a4 100644
--- a/fs/xfs/xfs_trans_resv.c
+++ b/fs/xfs/xfs_trans_resv.c
@@ -19,6 +19,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_shared.h"
 #include "xfs_log.h"
 #include "xfs_trans_resv.h"
 #include "xfs_trans.h"
-- 
cgit 


From 5706278758e334bf6a15f57c18dc16df19c83957 Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 15 Oct 2013 09:17:51 +1100
Subject: xfs: unify directory/attribute format definitions

The on-disk format definitions for the directory and attribute
structures are spread across 3 header files right now, only one of
which is dedicated to defining on-disk structures and their
manipulation (xfs_dir2_format.h). Pull all the format definitions
into a single header file - xfs_da_format.h - and switch all the
code over to point at that.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_attr.c          |    1 +
 fs/xfs/xfs_attr_inactive.c |    1 +
 fs/xfs/xfs_attr_leaf.c     |    1 +
 fs/xfs/xfs_attr_leaf.h     |  230 --------
 fs/xfs/xfs_attr_list.c     |    1 +
 fs/xfs/xfs_attr_remote.c   |    1 +
 fs/xfs/xfs_attr_remote.h   |   27 -
 fs/xfs/xfs_bmap.c          |    2 +-
 fs/xfs/xfs_bmap_util.c     |    2 +-
 fs/xfs/xfs_da_btree.c      |    2 +-
 fs/xfs/xfs_da_btree.h      |  140 -----
 fs/xfs/xfs_da_format.h     | 1362 ++++++++++++++++++++++++++++++++++++++++++++
 fs/xfs/xfs_dir2.c          |    2 +-
 fs/xfs/xfs_dir2_block.c    |    2 +-
 fs/xfs/xfs_dir2_data.c     |    2 +-
 fs/xfs/xfs_dir2_format.h   |  964 -------------------------------
 fs/xfs/xfs_dir2_leaf.c     |    2 +-
 fs/xfs/xfs_dir2_node.c     |    2 +-
 fs/xfs/xfs_dir2_readdir.c  |    2 +-
 fs/xfs/xfs_dir2_sf.c       |    2 +-
 fs/xfs/xfs_export.c        |    3 +-
 fs/xfs/xfs_file.c          |    4 +-
 fs/xfs/xfs_inode.c         |    2 +-
 fs/xfs/xfs_iops.c          |    2 +-
 fs/xfs/xfs_log_recover.c   |    2 +-
 fs/xfs/xfs_log_rlimit.c    |    1 +
 fs/xfs/xfs_mount.c         |    3 +-
 fs/xfs/xfs_sb.c            |    2 +-
 fs/xfs/xfs_super.c         |    2 +-
 fs/xfs/xfs_symlink.c       |    3 +-
 fs/xfs/xfs_trace.c         |    3 +-
 fs/xfs/xfs_trans.c         |    2 +-
 fs/xfs/xfs_trans_resv.c    |    1 +
 fs/xfs/xfs_xattr.c         |    7 +-
 34 files changed, 1398 insertions(+), 1387 deletions(-)
 create mode 100644 fs/xfs/xfs_da_format.h
 delete mode 100644 fs/xfs/xfs_dir2_format.h

diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c
index 21af043bbee8..dd0f48ff8832 100644
--- a/fs/xfs/xfs_attr.c
+++ b/fs/xfs/xfs_attr.c
@@ -26,6 +26,7 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_attr_sf.h"
diff --git a/fs/xfs/xfs_attr_inactive.c b/fs/xfs/xfs_attr_inactive.c
index e90a8760bc3d..60b60c008fb7 100644
--- a/fs/xfs/xfs_attr_inactive.c
+++ b/fs/xfs/xfs_attr_inactive.c
@@ -26,6 +26,7 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index 86db20a9cc02..94838fe67386 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -26,6 +26,7 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
diff --git a/fs/xfs/xfs_attr_leaf.h b/fs/xfs/xfs_attr_leaf.h
index da34e64b5323..3ec5ec0b8678 100644
--- a/fs/xfs/xfs_attr_leaf.h
+++ b/fs/xfs/xfs_attr_leaf.h
@@ -19,16 +19,6 @@
 #ifndef __XFS_ATTR_LEAF_H__
 #define	__XFS_ATTR_LEAF_H__
 
-/*
- * Attribute storage layout, internal structure, access macros, etc.
- *
- * Attribute lists are structured around Btrees where all the data
- * elements are in the leaf nodes.  Attribute names are hashed into an int,
- * then that int is used as the index into the Btree.  Since the hashval
- * of an attribute name may not be unique, we may have duplicate keys.  The
- * internal links in the Btree are logical block offsets into the file.
- */
-
 struct attrlist;
 struct attrlist_cursor_kern;
 struct xfs_attr_list_context;
@@ -38,226 +28,6 @@ struct xfs_da_state_blk;
 struct xfs_inode;
 struct xfs_trans;
 
-/*========================================================================
- * Attribute structure when equal to XFS_LBSIZE(mp) bytes.
- *========================================================================*/
-
-/*
- * This is the structure of the leaf nodes in the Btree.
- *
- * Struct leaf_entry's are packed from the top.  Name/values grow from the
- * bottom but are not packed.  The freemap contains run-length-encoded entries
- * for the free bytes after the leaf_entry's, but only the N largest such,
- * smaller runs are dropped.  When the freemap doesn't show enough space
- * for an allocation, we compact the name/value area and try again.  If we
- * still don't have enough space, then we have to split the block.  The
- * name/value structs (both local and remote versions) must be 32bit aligned.
- *
- * Since we have duplicate hash keys, for each key that matches, compare
- * the actual name string.  The root and intermediate node search always
- * takes the first-in-the-block key match found, so we should only have
- * to work "forw"ard.  If none matches, continue with the "forw"ard leaf
- * nodes until the hash key changes or the attribute name is found.
- *
- * We store the fact that an attribute is a ROOT/USER/SECURE attribute in
- * the leaf_entry.  The namespaces are independent only because we also look
- * at the namespace bit when we are looking for a matching attribute name.
- *
- * We also store an "incomplete" bit in the leaf_entry.  It shows that an
- * attribute is in the middle of being created and should not be shown to
- * the user if we crash during the time that the bit is set.  We clear the
- * bit when we have finished setting up the attribute.  We do this because
- * we cannot create some large attributes inside a single transaction, and we
- * need some indication that we weren't finished if we crash in the middle.
- */
-#define XFS_ATTR_LEAF_MAPSIZE	3	/* how many freespace slots */
-
-typedef struct xfs_attr_leaf_map {	/* RLE map of free bytes */
-	__be16	base;			  /* base of free region */
-	__be16	size;			  /* length of free region */
-} xfs_attr_leaf_map_t;
-
-typedef struct xfs_attr_leaf_hdr {	/* constant-structure header block */
-	xfs_da_blkinfo_t info;		/* block type, links, etc. */
-	__be16	count;			/* count of active leaf_entry's */
-	__be16	usedbytes;		/* num bytes of names/values stored */
-	__be16	firstused;		/* first used byte in name area */
-	__u8	holes;			/* != 0 if blk needs compaction */
-	__u8	pad1;
-	xfs_attr_leaf_map_t freemap[XFS_ATTR_LEAF_MAPSIZE];
-					/* N largest free regions */
-} xfs_attr_leaf_hdr_t;
-
-typedef struct xfs_attr_leaf_entry {	/* sorted on key, not name */
-	__be32	hashval;		/* hash value of name */
-	__be16	nameidx;		/* index into buffer of name/value */
-	__u8	flags;			/* LOCAL/ROOT/SECURE/INCOMPLETE flag */
-	__u8	pad2;			/* unused pad byte */
-} xfs_attr_leaf_entry_t;
-
-typedef struct xfs_attr_leaf_name_local {
-	__be16	valuelen;		/* number of bytes in value */
-	__u8	namelen;		/* length of name bytes */
-	__u8	nameval[1];		/* name/value bytes */
-} xfs_attr_leaf_name_local_t;
-
-typedef struct xfs_attr_leaf_name_remote {
-	__be32	valueblk;		/* block number of value bytes */
-	__be32	valuelen;		/* number of bytes in value */
-	__u8	namelen;		/* length of name bytes */
-	__u8	name[1];		/* name bytes */
-} xfs_attr_leaf_name_remote_t;
-
-typedef struct xfs_attr_leafblock {
-	xfs_attr_leaf_hdr_t	hdr;	/* constant-structure header block */
-	xfs_attr_leaf_entry_t	entries[1];	/* sorted on key, not name */
-	xfs_attr_leaf_name_local_t namelist;	/* grows from bottom of buf */
-	xfs_attr_leaf_name_remote_t valuelist;	/* grows from bottom of buf */
-} xfs_attr_leafblock_t;
-
-/*
- * CRC enabled leaf structures. Called "version 3" structures to match the
- * version number of the directory and dablk structures for this feature, and
- * attr2 is already taken by the variable inode attribute fork size feature.
- */
-struct xfs_attr3_leaf_hdr {
-	struct xfs_da3_blkinfo	info;
-	__be16			count;
-	__be16			usedbytes;
-	__be16			firstused;
-	__u8			holes;
-	__u8			pad1;
-	struct xfs_attr_leaf_map freemap[XFS_ATTR_LEAF_MAPSIZE];
-	__be32			pad2;		/* 64 bit alignment */
-};
-
-#define XFS_ATTR3_LEAF_CRC_OFF	(offsetof(struct xfs_attr3_leaf_hdr, info.crc))
-
-struct xfs_attr3_leafblock {
-	struct xfs_attr3_leaf_hdr	hdr;
-	struct xfs_attr_leaf_entry	entries[1];
-
-	/*
-	 * The rest of the block contains the following structures after the
-	 * leaf entries, growing from the bottom up. The variables are never
-	 * referenced, the locations accessed purely from helper functions.
-	 *
-	 * struct xfs_attr_leaf_name_local
-	 * struct xfs_attr_leaf_name_remote
-	 */
-};
-
-/*
- * incore, neutral version of the attribute leaf header
- */
-struct xfs_attr3_icleaf_hdr {
-	__uint32_t	forw;
-	__uint32_t	back;
-	__uint16_t	magic;
-	__uint16_t	count;
-	__uint16_t	usedbytes;
-	__uint16_t	firstused;
-	__u8		holes;
-	struct {
-		__uint16_t	base;
-		__uint16_t	size;
-	} freemap[XFS_ATTR_LEAF_MAPSIZE];
-};
-
-/*
- * Flags used in the leaf_entry[i].flags field.
- * NOTE: the INCOMPLETE bit must not collide with the flags bits specified
- * on the system call, they are "or"ed together for various operations.
- */
-#define	XFS_ATTR_LOCAL_BIT	0	/* attr is stored locally */
-#define	XFS_ATTR_ROOT_BIT	1	/* limit access to trusted attrs */
-#define	XFS_ATTR_SECURE_BIT	2	/* limit access to secure attrs */
-#define	XFS_ATTR_INCOMPLETE_BIT	7	/* attr in middle of create/delete */
-#define XFS_ATTR_LOCAL		(1 << XFS_ATTR_LOCAL_BIT)
-#define XFS_ATTR_ROOT		(1 << XFS_ATTR_ROOT_BIT)
-#define XFS_ATTR_SECURE		(1 << XFS_ATTR_SECURE_BIT)
-#define XFS_ATTR_INCOMPLETE	(1 << XFS_ATTR_INCOMPLETE_BIT)
-
-/*
- * Conversion macros for converting namespace bits from argument flags
- * to ondisk flags.
- */
-#define XFS_ATTR_NSP_ARGS_MASK		(ATTR_ROOT | ATTR_SECURE)
-#define XFS_ATTR_NSP_ONDISK_MASK	(XFS_ATTR_ROOT | XFS_ATTR_SECURE)
-#define XFS_ATTR_NSP_ONDISK(flags)	((flags) & XFS_ATTR_NSP_ONDISK_MASK)
-#define XFS_ATTR_NSP_ARGS(flags)	((flags) & XFS_ATTR_NSP_ARGS_MASK)
-#define XFS_ATTR_NSP_ARGS_TO_ONDISK(x)	(((x) & ATTR_ROOT ? XFS_ATTR_ROOT : 0) |\
-					 ((x) & ATTR_SECURE ? XFS_ATTR_SECURE : 0))
-#define XFS_ATTR_NSP_ONDISK_TO_ARGS(x)	(((x) & XFS_ATTR_ROOT ? ATTR_ROOT : 0) |\
-					 ((x) & XFS_ATTR_SECURE ? ATTR_SECURE : 0))
-
-/*
- * Alignment for namelist and valuelist entries (since they are mixed
- * there can be only one alignment value)
- */
-#define	XFS_ATTR_LEAF_NAME_ALIGN	((uint)sizeof(xfs_dablk_t))
-
-static inline int
-xfs_attr3_leaf_hdr_size(struct xfs_attr_leafblock *leafp)
-{
-	if (leafp->hdr.info.magic == cpu_to_be16(XFS_ATTR3_LEAF_MAGIC))
-		return sizeof(struct xfs_attr3_leaf_hdr);
-	return sizeof(struct xfs_attr_leaf_hdr);
-}
-
-static inline struct xfs_attr_leaf_entry *
-xfs_attr3_leaf_entryp(xfs_attr_leafblock_t *leafp)
-{
-	if (leafp->hdr.info.magic == cpu_to_be16(XFS_ATTR3_LEAF_MAGIC))
-		return &((struct xfs_attr3_leafblock *)leafp)->entries[0];
-	return &leafp->entries[0];
-}
-
-/*
- * Cast typed pointers for "local" and "remote" name/value structs.
- */
-static inline char *
-xfs_attr3_leaf_name(xfs_attr_leafblock_t *leafp, int idx)
-{
-	struct xfs_attr_leaf_entry *entries = xfs_attr3_leaf_entryp(leafp);
-
-	return &((char *)leafp)[be16_to_cpu(entries[idx].nameidx)];
-}
-
-static inline xfs_attr_leaf_name_remote_t *
-xfs_attr3_leaf_name_remote(xfs_attr_leafblock_t *leafp, int idx)
-{
-	return (xfs_attr_leaf_name_remote_t *)xfs_attr3_leaf_name(leafp, idx);
-}
-
-static inline xfs_attr_leaf_name_local_t *
-xfs_attr3_leaf_name_local(xfs_attr_leafblock_t *leafp, int idx)
-{
-	return (xfs_attr_leaf_name_local_t *)xfs_attr3_leaf_name(leafp, idx);
-}
-
-/*
- * Calculate total bytes used (including trailing pad for alignment) for
- * a "local" name/value structure, a "remote" name/value structure, and
- * a pointer which might be either.
- */
-static inline int xfs_attr_leaf_entsize_remote(int nlen)
-{
-	return ((uint)sizeof(xfs_attr_leaf_name_remote_t) - 1 + (nlen) + \
-		XFS_ATTR_LEAF_NAME_ALIGN - 1) & ~(XFS_ATTR_LEAF_NAME_ALIGN - 1);
-}
-
-static inline int xfs_attr_leaf_entsize_local(int nlen, int vlen)
-{
-	return ((uint)sizeof(xfs_attr_leaf_name_local_t) - 1 + (nlen) + (vlen) +
-		XFS_ATTR_LEAF_NAME_ALIGN - 1) & ~(XFS_ATTR_LEAF_NAME_ALIGN - 1);
-}
-
-static inline int xfs_attr_leaf_entsize_local_max(int bsize)
-{
-	return (((bsize) >> 1) + ((bsize) >> 2));
-}
-
 /*
  * Used to keep a list of "remote value" extents when unlinking an inode.
  */
diff --git a/fs/xfs/xfs_attr_list.c b/fs/xfs/xfs_attr_list.c
index cbc80d485177..8ba8e4b5e310 100644
--- a/fs/xfs/xfs_attr_list.c
+++ b/fs/xfs/xfs_attr_list.c
@@ -25,6 +25,7 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
diff --git a/fs/xfs/xfs_attr_remote.c b/fs/xfs/xfs_attr_remote.c
index 712a502de619..578f21b70875 100644
--- a/fs/xfs/xfs_attr_remote.c
+++ b/fs/xfs/xfs_attr_remote.c
@@ -26,6 +26,7 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_error.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
diff --git a/fs/xfs/xfs_attr_remote.h b/fs/xfs/xfs_attr_remote.h
index b3e1e1bdfb3b..5a9acfa156d7 100644
--- a/fs/xfs/xfs_attr_remote.h
+++ b/fs/xfs/xfs_attr_remote.h
@@ -18,33 +18,6 @@
 #ifndef __XFS_ATTR_REMOTE_H__
 #define	__XFS_ATTR_REMOTE_H__
 
-#define XFS_ATTR3_RMT_MAGIC	0x5841524d	/* XARM */
-
-/*
- * There is one of these headers per filesystem block in a remote attribute.
- * This is done to ensure there is a 1:1 mapping between the attribute value
- * length and the number of blocks needed to store the attribute. This makes the
- * verification of a buffer a little more complex, but greatly simplifies the
- * allocation, reading and writing of these attributes as we don't have to guess
- * the number of blocks needed to store the attribute data.
- */
-struct xfs_attr3_rmt_hdr {
-	__be32	rm_magic;
-	__be32	rm_offset;
-	__be32	rm_bytes;
-	__be32	rm_crc;
-	uuid_t	rm_uuid;
-	__be64	rm_owner;
-	__be64	rm_blkno;
-	__be64	rm_lsn;
-};
-
-#define XFS_ATTR3_RMT_CRC_OFF	offsetof(struct xfs_attr3_rmt_hdr, rm_crc)
-
-#define XFS_ATTR3_RMT_BUF_SPACE(mp, bufsize)	\
-	((bufsize) - (xfs_sb_version_hascrc(&(mp)->m_sb) ? \
-			sizeof(struct xfs_attr3_rmt_hdr) : 0))
-
 int xfs_attr3_rmt_blocks(struct xfs_mount *mp, int attrlen);
 
 int xfs_attr_rmtval_get(struct xfs_da_args *args);
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 6870aad5d815..b5cb377bd2bb 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -26,8 +26,8 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_da_btree.h"
-#include "xfs_dir2_format.h"
 #include "xfs_dir2.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index 4f246628a900..74ff478b9b75 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -27,7 +27,7 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_da_btree.h"
+#include "xfs_da_format.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index ac51abeb4782..4ec68c361c4c 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -26,9 +26,9 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
-#include "xfs_dir2_format.h"
 #include "xfs_dir2.h"
 #include "xfs_dir2_priv.h"
 #include "xfs_dinode.h"
diff --git a/fs/xfs/xfs_da_btree.h b/fs/xfs/xfs_da_btree.h
index a762cfa4097d..e492dcadd032 100644
--- a/fs/xfs/xfs_da_btree.h
+++ b/fs/xfs/xfs_da_btree.h
@@ -24,146 +24,6 @@ struct xfs_inode;
 struct xfs_trans;
 struct zone;
 
-/*========================================================================
- * Directory Structure when greater than XFS_LBSIZE(mp) bytes.
- *========================================================================*/
-
-/*
- * This structure is common to both leaf nodes and non-leaf nodes in the Btree.
- *
- * It is used to manage a doubly linked list of all blocks at the same
- * level in the Btree, and to identify which type of block this is.
- */
-#define XFS_DA_NODE_MAGIC	0xfebe	/* magic number: non-leaf blocks */
-#define XFS_ATTR_LEAF_MAGIC	0xfbee	/* magic number: attribute leaf blks */
-#define	XFS_DIR2_LEAF1_MAGIC	0xd2f1	/* magic number: v2 dirlf single blks */
-#define	XFS_DIR2_LEAFN_MAGIC	0xd2ff	/* magic number: v2 dirlf multi blks */
-
-typedef struct xfs_da_blkinfo {
-	__be32		forw;			/* previous block in list */
-	__be32		back;			/* following block in list */
-	__be16		magic;			/* validity check on block */
-	__be16		pad;			/* unused */
-} xfs_da_blkinfo_t;
-
-/*
- * CRC enabled directory structure types
- *
- * The headers change size for the additional verification information, but
- * otherwise the tree layouts and contents are unchanged. Hence the da btree
- * code can use the struct xfs_da_blkinfo for manipulating the tree links and
- * magic numbers without modification for both v2 and v3 nodes.
- */
-#define XFS_DA3_NODE_MAGIC	0x3ebe	/* magic number: non-leaf blocks */
-#define XFS_ATTR3_LEAF_MAGIC	0x3bee	/* magic number: attribute leaf blks */
-#define	XFS_DIR3_LEAF1_MAGIC	0x3df1	/* magic number: v2 dirlf single blks */
-#define	XFS_DIR3_LEAFN_MAGIC	0x3dff	/* magic number: v2 dirlf multi blks */
-
-struct xfs_da3_blkinfo {
-	/*
-	 * the node link manipulation code relies on the fact that the first
-	 * element of this structure is the struct xfs_da_blkinfo so it can
-	 * ignore the differences in the rest of the structures.
-	 */
-	struct xfs_da_blkinfo	hdr;
-	__be32			crc;	/* CRC of block */
-	__be64			blkno;	/* first block of the buffer */
-	__be64			lsn;	/* sequence number of last write */
-	uuid_t			uuid;	/* filesystem we belong to */
-	__be64			owner;	/* inode that owns the block */
-};
-
-/*
- * This is the structure of the root and intermediate nodes in the Btree.
- * The leaf nodes are defined above.
- *
- * Entries are not packed.
- *
- * Since we have duplicate keys, use a binary search but always follow
- * all match in the block, not just the first match found.
- */
-#define	XFS_DA_NODE_MAXDEPTH	5	/* max depth of Btree */
-
-typedef struct xfs_da_node_hdr {
-	struct xfs_da_blkinfo	info;	/* block type, links, etc. */
-	__be16			__count; /* count of active entries */
-	__be16			__level; /* level above leaves (leaf == 0) */
-} xfs_da_node_hdr_t;
-
-struct xfs_da3_node_hdr {
-	struct xfs_da3_blkinfo	info;	/* block type, links, etc. */
-	__be16			__count; /* count of active entries */
-	__be16			__level; /* level above leaves (leaf == 0) */
-	__be32			__pad32;
-};
-
-#define XFS_DA3_NODE_CRC_OFF	(offsetof(struct xfs_da3_node_hdr, info.crc))
-
-typedef struct xfs_da_node_entry {
-	__be32	hashval;	/* hash value for this descendant */
-	__be32	before;		/* Btree block before this key */
-} xfs_da_node_entry_t;
-
-typedef struct xfs_da_intnode {
-	struct xfs_da_node_hdr	hdr;
-	struct xfs_da_node_entry __btree[];
-} xfs_da_intnode_t;
-
-struct xfs_da3_intnode {
-	struct xfs_da3_node_hdr	hdr;
-	struct xfs_da_node_entry __btree[];
-};
-
-/*
- * In-core version of the node header to abstract the differences in the v2 and
- * v3 disk format of the headers. Callers need to convert to/from disk format as
- * appropriate.
- */
-struct xfs_da3_icnode_hdr {
-	__uint32_t	forw;
-	__uint32_t	back;
-	__uint16_t	magic;
-	__uint16_t	count;
-	__uint16_t	level;
-};
-
-extern void xfs_da3_node_hdr_from_disk(struct xfs_da3_icnode_hdr *to,
-				       struct xfs_da_intnode *from);
-extern void xfs_da3_node_hdr_to_disk(struct xfs_da_intnode *to,
-				     struct xfs_da3_icnode_hdr *from);
-
-static inline int
-__xfs_da3_node_hdr_size(bool v3)
-{
-	if (v3)
-		return sizeof(struct xfs_da3_node_hdr);
-	return sizeof(struct xfs_da_node_hdr);
-}
-static inline int
-xfs_da3_node_hdr_size(struct xfs_da_intnode *dap)
-{
-	bool	v3 = dap->hdr.info.magic == cpu_to_be16(XFS_DA3_NODE_MAGIC);
-
-	return __xfs_da3_node_hdr_size(v3);
-}
-
-static inline struct xfs_da_node_entry *
-xfs_da3_node_tree_p(struct xfs_da_intnode *dap)
-{
-	if (dap->hdr.info.magic == cpu_to_be16(XFS_DA3_NODE_MAGIC)) {
-		struct xfs_da3_intnode *dap3 = (struct xfs_da3_intnode *)dap;
-		return dap3->__btree;
-	}
-	return dap->__btree;
-}
-
-extern void xfs_da3_intnode_from_disk(struct xfs_da3_icnode_hdr *to,
-				      struct xfs_da_intnode *from);
-extern void xfs_da3_intnode_to_disk(struct xfs_da_intnode *to,
-				    struct xfs_da3_icnode_hdr *from);
-
-#define	XFS_LBSIZE(mp)	(mp)->m_sb.sb_blocksize
-
 /*========================================================================
  * Btree searching and modification structure definitions.
  *========================================================================*/
diff --git a/fs/xfs/xfs_da_format.h b/fs/xfs/xfs_da_format.h
new file mode 100644
index 000000000000..89a1a219c8ff
--- /dev/null
+++ b/fs/xfs/xfs_da_format.h
@@ -0,0 +1,1362 @@
+/*
+ * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
+ * Copyright (c) 2013 Red Hat, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#ifndef __XFS_DA_FORMAT_H__
+#define __XFS_DA_FORMAT_H__
+
+/*========================================================================
+ * Directory Structure when greater than XFS_LBSIZE(mp) bytes.
+ *========================================================================*/
+
+/*
+ * This structure is common to both leaf nodes and non-leaf nodes in the Btree.
+ *
+ * It is used to manage a doubly linked list of all blocks at the same
+ * level in the Btree, and to identify which type of block this is.
+ */
+#define XFS_DA_NODE_MAGIC	0xfebe	/* magic number: non-leaf blocks */
+#define XFS_ATTR_LEAF_MAGIC	0xfbee	/* magic number: attribute leaf blks */
+#define	XFS_DIR2_LEAF1_MAGIC	0xd2f1	/* magic number: v2 dirlf single blks */
+#define	XFS_DIR2_LEAFN_MAGIC	0xd2ff	/* magic number: v2 dirlf multi blks */
+
+typedef struct xfs_da_blkinfo {
+	__be32		forw;			/* previous block in list */
+	__be32		back;			/* following block in list */
+	__be16		magic;			/* validity check on block */
+	__be16		pad;			/* unused */
+} xfs_da_blkinfo_t;
+
+/*
+ * CRC enabled directory structure types
+ *
+ * The headers change size for the additional verification information, but
+ * otherwise the tree layouts and contents are unchanged. Hence the da btree
+ * code can use the struct xfs_da_blkinfo for manipulating the tree links and
+ * magic numbers without modification for both v2 and v3 nodes.
+ */
+#define XFS_DA3_NODE_MAGIC	0x3ebe	/* magic number: non-leaf blocks */
+#define XFS_ATTR3_LEAF_MAGIC	0x3bee	/* magic number: attribute leaf blks */
+#define	XFS_DIR3_LEAF1_MAGIC	0x3df1	/* magic number: v2 dirlf single blks */
+#define	XFS_DIR3_LEAFN_MAGIC	0x3dff	/* magic number: v2 dirlf multi blks */
+
+struct xfs_da3_blkinfo {
+	/*
+	 * the node link manipulation code relies on the fact that the first
+	 * element of this structure is the struct xfs_da_blkinfo so it can
+	 * ignore the differences in the rest of the structures.
+	 */
+	struct xfs_da_blkinfo	hdr;
+	__be32			crc;	/* CRC of block */
+	__be64			blkno;	/* first block of the buffer */
+	__be64			lsn;	/* sequence number of last write */
+	uuid_t			uuid;	/* filesystem we belong to */
+	__be64			owner;	/* inode that owns the block */
+};
+
+/*
+ * This is the structure of the root and intermediate nodes in the Btree.
+ * The leaf nodes are defined above.
+ *
+ * Entries are not packed.
+ *
+ * Since we have duplicate keys, use a binary search but always follow
+ * all match in the block, not just the first match found.
+ */
+#define	XFS_DA_NODE_MAXDEPTH	5	/* max depth of Btree */
+
+typedef struct xfs_da_node_hdr {
+	struct xfs_da_blkinfo	info;	/* block type, links, etc. */
+	__be16			__count; /* count of active entries */
+	__be16			__level; /* level above leaves (leaf == 0) */
+} xfs_da_node_hdr_t;
+
+struct xfs_da3_node_hdr {
+	struct xfs_da3_blkinfo	info;	/* block type, links, etc. */
+	__be16			__count; /* count of active entries */
+	__be16			__level; /* level above leaves (leaf == 0) */
+	__be32			__pad32;
+};
+
+#define XFS_DA3_NODE_CRC_OFF	(offsetof(struct xfs_da3_node_hdr, info.crc))
+
+typedef struct xfs_da_node_entry {
+	__be32	hashval;	/* hash value for this descendant */
+	__be32	before;		/* Btree block before this key */
+} xfs_da_node_entry_t;
+
+typedef struct xfs_da_intnode {
+	struct xfs_da_node_hdr	hdr;
+	struct xfs_da_node_entry __btree[];
+} xfs_da_intnode_t;
+
+struct xfs_da3_intnode {
+	struct xfs_da3_node_hdr	hdr;
+	struct xfs_da_node_entry __btree[];
+};
+
+/*
+ * In-core version of the node header to abstract the differences in the v2 and
+ * v3 disk format of the headers. Callers need to convert to/from disk format as
+ * appropriate.
+ */
+struct xfs_da3_icnode_hdr {
+	__uint32_t	forw;
+	__uint32_t	back;
+	__uint16_t	magic;
+	__uint16_t	count;
+	__uint16_t	level;
+};
+
+extern void xfs_da3_node_hdr_from_disk(struct xfs_da3_icnode_hdr *to,
+				       struct xfs_da_intnode *from);
+extern void xfs_da3_node_hdr_to_disk(struct xfs_da_intnode *to,
+				     struct xfs_da3_icnode_hdr *from);
+
+static inline int
+__xfs_da3_node_hdr_size(bool v3)
+{
+	if (v3)
+		return sizeof(struct xfs_da3_node_hdr);
+	return sizeof(struct xfs_da_node_hdr);
+}
+static inline int
+xfs_da3_node_hdr_size(struct xfs_da_intnode *dap)
+{
+	bool	v3 = dap->hdr.info.magic == cpu_to_be16(XFS_DA3_NODE_MAGIC);
+
+	return __xfs_da3_node_hdr_size(v3);
+}
+
+static inline struct xfs_da_node_entry *
+xfs_da3_node_tree_p(struct xfs_da_intnode *dap)
+{
+	if (dap->hdr.info.magic == cpu_to_be16(XFS_DA3_NODE_MAGIC)) {
+		struct xfs_da3_intnode *dap3 = (struct xfs_da3_intnode *)dap;
+		return dap3->__btree;
+	}
+	return dap->__btree;
+}
+
+extern void xfs_da3_intnode_from_disk(struct xfs_da3_icnode_hdr *to,
+				      struct xfs_da_intnode *from);
+extern void xfs_da3_intnode_to_disk(struct xfs_da_intnode *to,
+				    struct xfs_da3_icnode_hdr *from);
+
+#define	XFS_LBSIZE(mp)	(mp)->m_sb.sb_blocksize
+
+/*
+ * Directory version 2.
+ *
+ * There are 4 possible formats:
+ *  - shortform - embedded into the inode
+ *  - single block - data with embedded leaf at the end
+ *  - multiple data blocks, single leaf+freeindex block
+ *  - data blocks, node and leaf blocks (btree), freeindex blocks
+ *
+ * Note: many node blocks structures and constants are shared with the attr
+ * code and defined in xfs_da_btree.h.
+ */
+
+#define	XFS_DIR2_BLOCK_MAGIC	0x58443242	/* XD2B: single block dirs */
+#define	XFS_DIR2_DATA_MAGIC	0x58443244	/* XD2D: multiblock dirs */
+#define	XFS_DIR2_FREE_MAGIC	0x58443246	/* XD2F: free index blocks */
+
+/*
+ * Directory Version 3 With CRCs.
+ *
+ * The tree formats are the same as for version 2 directories.  The difference
+ * is in the block header and dirent formats. In many cases the v3 structures
+ * use v2 definitions as they are no different and this makes code sharing much
+ * easier.
+ *
+ * Also, the xfs_dir3_*() functions handle both v2 and v3 formats - if the
+ * format is v2 then they switch to the existing v2 code, or the format is v3
+ * they implement the v3 functionality. This means the existing dir2 is a mix of
+ * xfs_dir2/xfs_dir3 calls and functions. The xfs_dir3 functions are called
+ * where there is a difference in the formats, otherwise the code is unchanged.
+ *
+ * Where it is possible, the code decides what to do based on the magic numbers
+ * in the blocks rather than feature bits in the superblock. This means the code
+ * is as independent of the external XFS code as possible as doesn't require
+ * passing struct xfs_mount pointers into places where it isn't really
+ * necessary.
+ *
+ * Version 3 includes:
+ *
+ *	- a larger block header for CRC and identification purposes and so the
+ *	offsets of all the structures inside the blocks are different.
+ *
+ *	- new magic numbers to be able to detect the v2/v3 types on the fly.
+ */
+
+#define	XFS_DIR3_BLOCK_MAGIC	0x58444233	/* XDB3: single block dirs */
+#define	XFS_DIR3_DATA_MAGIC	0x58444433	/* XDD3: multiblock dirs */
+#define	XFS_DIR3_FREE_MAGIC	0x58444633	/* XDF3: free index blocks */
+
+/*
+ * Dirents in version 3 directories have a file type field. Additions to this
+ * list are an on-disk format change, requiring feature bits. Valid values
+ * are as follows:
+ */
+#define XFS_DIR3_FT_UNKNOWN		0
+#define XFS_DIR3_FT_REG_FILE		1
+#define XFS_DIR3_FT_DIR			2
+#define XFS_DIR3_FT_CHRDEV		3
+#define XFS_DIR3_FT_BLKDEV		4
+#define XFS_DIR3_FT_FIFO		5
+#define XFS_DIR3_FT_SOCK		6
+#define XFS_DIR3_FT_SYMLINK		7
+#define XFS_DIR3_FT_WHT			8
+
+#define XFS_DIR3_FT_MAX			9
+
+/*
+ * Byte offset in data block and shortform entry.
+ */
+typedef	__uint16_t	xfs_dir2_data_off_t;
+#define	NULLDATAOFF	0xffffU
+typedef uint		xfs_dir2_data_aoff_t;	/* argument form */
+
+/*
+ * Normalized offset (in a data block) of the entry, really xfs_dir2_data_off_t.
+ * Only need 16 bits, this is the byte offset into the single block form.
+ */
+typedef struct { __uint8_t i[2]; } __arch_pack xfs_dir2_sf_off_t;
+
+/*
+ * Offset in data space of a data entry.
+ */
+typedef	__uint32_t	xfs_dir2_dataptr_t;
+#define	XFS_DIR2_MAX_DATAPTR	((xfs_dir2_dataptr_t)0xffffffff)
+#define	XFS_DIR2_NULL_DATAPTR	((xfs_dir2_dataptr_t)0)
+
+/*
+ * Byte offset in a directory.
+ */
+typedef	xfs_off_t	xfs_dir2_off_t;
+
+/*
+ * Directory block number (logical dirblk in file)
+ */
+typedef	__uint32_t	xfs_dir2_db_t;
+
+/*
+ * Inode number stored as 8 8-bit values.
+ */
+typedef	struct { __uint8_t i[8]; } xfs_dir2_ino8_t;
+
+/*
+ * Inode number stored as 4 8-bit values.
+ * Works a lot of the time, when all the inode numbers in a directory
+ * fit in 32 bits.
+ */
+typedef struct { __uint8_t i[4]; } xfs_dir2_ino4_t;
+
+typedef union {
+	xfs_dir2_ino8_t	i8;
+	xfs_dir2_ino4_t	i4;
+} xfs_dir2_inou_t;
+#define	XFS_DIR2_MAX_SHORT_INUM	((xfs_ino_t)0xffffffffULL)
+
+/*
+ * Directory layout when stored internal to an inode.
+ *
+ * Small directories are packed as tightly as possible so as to fit into the
+ * literal area of the inode.  These "shortform" directories consist of a
+ * single xfs_dir2_sf_hdr header followed by zero or more xfs_dir2_sf_entry
+ * structures.  Due the different inode number storage size and the variable
+ * length name field in the xfs_dir2_sf_entry all these structure are
+ * variable length, and the accessors in this file should be used to iterate
+ * over them.
+ */
+typedef struct xfs_dir2_sf_hdr {
+	__uint8_t		count;		/* count of entries */
+	__uint8_t		i8count;	/* count of 8-byte inode #s */
+	xfs_dir2_inou_t		parent;		/* parent dir inode number */
+} __arch_pack xfs_dir2_sf_hdr_t;
+
+typedef struct xfs_dir2_sf_entry {
+	__u8			namelen;	/* actual name length */
+	xfs_dir2_sf_off_t	offset;		/* saved offset */
+	__u8			name[];		/* name, variable size */
+	/*
+	 * A single byte containing the file type field follows the inode
+	 * number for version 3 directory entries.
+	 *
+	 * A xfs_dir2_ino8_t or xfs_dir2_ino4_t follows here, at a
+	 * variable offset after the name.
+	 */
+} __arch_pack xfs_dir2_sf_entry_t;
+
+static inline int xfs_dir2_sf_hdr_size(int i8count)
+{
+	return sizeof(struct xfs_dir2_sf_hdr) -
+		(i8count == 0) *
+		(sizeof(xfs_dir2_ino8_t) - sizeof(xfs_dir2_ino4_t));
+}
+
+static inline xfs_dir2_data_aoff_t
+xfs_dir2_sf_get_offset(xfs_dir2_sf_entry_t *sfep)
+{
+	return get_unaligned_be16(&sfep->offset.i);
+}
+
+static inline void
+xfs_dir2_sf_put_offset(xfs_dir2_sf_entry_t *sfep, xfs_dir2_data_aoff_t off)
+{
+	put_unaligned_be16(off, &sfep->offset.i);
+}
+
+static inline struct xfs_dir2_sf_entry *
+xfs_dir2_sf_firstentry(struct xfs_dir2_sf_hdr *hdr)
+{
+	return (struct xfs_dir2_sf_entry *)
+		((char *)hdr + xfs_dir2_sf_hdr_size(hdr->i8count));
+}
+
+static inline int
+xfs_dir3_sf_entsize(
+	struct xfs_mount	*mp,
+	struct xfs_dir2_sf_hdr	*hdr,
+	int			len)
+{
+	int count = sizeof(struct xfs_dir2_sf_entry); 	/* namelen + offset */
+
+	count += len;					/* name */
+	count += hdr->i8count ? sizeof(xfs_dir2_ino8_t) :
+				sizeof(xfs_dir2_ino4_t); /* ino # */
+	if (xfs_sb_version_hasftype(&mp->m_sb))
+		count += sizeof(__uint8_t);		/* file type */
+	return count;
+}
+
+static inline struct xfs_dir2_sf_entry *
+xfs_dir3_sf_nextentry(
+	struct xfs_mount	*mp,
+	struct xfs_dir2_sf_hdr	*hdr,
+	struct xfs_dir2_sf_entry *sfep)
+{
+	return (struct xfs_dir2_sf_entry *)
+		((char *)sfep + xfs_dir3_sf_entsize(mp, hdr, sfep->namelen));
+}
+
+/*
+ * in dir3 shortform directories, the file type field is stored at a variable
+ * offset after the inode number. Because it's only a single byte, endian
+ * conversion is not necessary.
+ */
+static inline __uint8_t *
+xfs_dir3_sfe_ftypep(
+	struct xfs_dir2_sf_hdr	*hdr,
+	struct xfs_dir2_sf_entry *sfep)
+{
+	return (__uint8_t *)&sfep->name[sfep->namelen];
+}
+
+static inline __uint8_t
+xfs_dir3_sfe_get_ftype(
+	struct xfs_mount	*mp,
+	struct xfs_dir2_sf_hdr	*hdr,
+	struct xfs_dir2_sf_entry *sfep)
+{
+	__uint8_t	*ftp;
+
+	if (!xfs_sb_version_hasftype(&mp->m_sb))
+		return XFS_DIR3_FT_UNKNOWN;
+
+	ftp = xfs_dir3_sfe_ftypep(hdr, sfep);
+	if (*ftp >= XFS_DIR3_FT_MAX)
+		return XFS_DIR3_FT_UNKNOWN;
+	return *ftp;
+}
+
+static inline void
+xfs_dir3_sfe_put_ftype(
+	struct xfs_mount	*mp,
+	struct xfs_dir2_sf_hdr	*hdr,
+	struct xfs_dir2_sf_entry *sfep,
+	__uint8_t		ftype)
+{
+	__uint8_t	*ftp;
+
+	ASSERT(ftype < XFS_DIR3_FT_MAX);
+
+	if (!xfs_sb_version_hasftype(&mp->m_sb))
+		return;
+	ftp = xfs_dir3_sfe_ftypep(hdr, sfep);
+	*ftp = ftype;
+}
+
+/*
+ * Data block structures.
+ *
+ * A pure data block looks like the following drawing on disk:
+ *
+ *    +-------------------------------------------------+
+ *    | xfs_dir2_data_hdr_t                             |
+ *    +-------------------------------------------------+
+ *    | xfs_dir2_data_entry_t OR xfs_dir2_data_unused_t |
+ *    | xfs_dir2_data_entry_t OR xfs_dir2_data_unused_t |
+ *    | xfs_dir2_data_entry_t OR xfs_dir2_data_unused_t |
+ *    | ...                                             |
+ *    +-------------------------------------------------+
+ *    | unused space                                    |
+ *    +-------------------------------------------------+
+ *
+ * As all the entries are variable size structures the accessors below should
+ * be used to iterate over them.
+ *
+ * In addition to the pure data blocks for the data and node formats,
+ * most structures are also used for the combined data/freespace "block"
+ * format below.
+ */
+
+#define	XFS_DIR2_DATA_ALIGN_LOG	3		/* i.e., 8 bytes */
+#define	XFS_DIR2_DATA_ALIGN	(1 << XFS_DIR2_DATA_ALIGN_LOG)
+#define	XFS_DIR2_DATA_FREE_TAG	0xffff
+#define	XFS_DIR2_DATA_FD_COUNT	3
+
+/*
+ * Directory address space divided into sections,
+ * spaces separated by 32GB.
+ */
+#define	XFS_DIR2_SPACE_SIZE	(1ULL << (32 + XFS_DIR2_DATA_ALIGN_LOG))
+#define	XFS_DIR2_DATA_SPACE	0
+#define	XFS_DIR2_DATA_OFFSET	(XFS_DIR2_DATA_SPACE * XFS_DIR2_SPACE_SIZE)
+#define	XFS_DIR2_DATA_FIRSTDB(mp)	\
+	xfs_dir2_byte_to_db(mp, XFS_DIR2_DATA_OFFSET)
+
+/*
+ * Describe a free area in the data block.
+ *
+ * The freespace will be formatted as a xfs_dir2_data_unused_t.
+ */
+typedef struct xfs_dir2_data_free {
+	__be16			offset;		/* start of freespace */
+	__be16			length;		/* length of freespace */
+} xfs_dir2_data_free_t;
+
+/*
+ * Header for the data blocks.
+ *
+ * The code knows that XFS_DIR2_DATA_FD_COUNT is 3.
+ */
+typedef struct xfs_dir2_data_hdr {
+	__be32			magic;		/* XFS_DIR2_DATA_MAGIC or */
+						/* XFS_DIR2_BLOCK_MAGIC */
+	xfs_dir2_data_free_t	bestfree[XFS_DIR2_DATA_FD_COUNT];
+} xfs_dir2_data_hdr_t;
+
+/*
+ * define a structure for all the verification fields we are adding to the
+ * directory block structures. This will be used in several structures.
+ * The magic number must be the first entry to align with all the dir2
+ * structures so we determine how to decode them just by the magic number.
+ */
+struct xfs_dir3_blk_hdr {
+	__be32			magic;	/* magic number */
+	__be32			crc;	/* CRC of block */
+	__be64			blkno;	/* first block of the buffer */
+	__be64			lsn;	/* sequence number of last write */
+	uuid_t			uuid;	/* filesystem we belong to */
+	__be64			owner;	/* inode that owns the block */
+};
+
+struct xfs_dir3_data_hdr {
+	struct xfs_dir3_blk_hdr	hdr;
+	xfs_dir2_data_free_t	best_free[XFS_DIR2_DATA_FD_COUNT];
+	__be32			pad;	/* 64 bit alignment */
+};
+
+#define XFS_DIR3_DATA_CRC_OFF  offsetof(struct xfs_dir3_data_hdr, hdr.crc)
+
+static inline struct xfs_dir2_data_free *
+xfs_dir3_data_bestfree_p(struct xfs_dir2_data_hdr *hdr)
+{
+	if (hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) ||
+	    hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC)) {
+		struct xfs_dir3_data_hdr *hdr3 = (struct xfs_dir3_data_hdr *)hdr;
+		return hdr3->best_free;
+	}
+	return hdr->bestfree;
+}
+
+/*
+ * Active entry in a data block.
+ *
+ * Aligned to 8 bytes.  After the variable length name field there is a
+ * 2 byte tag field, which can be accessed using xfs_dir3_data_entry_tag_p.
+ *
+ * For dir3 structures, there is file type field between the name and the tag.
+ * This can only be manipulated by helper functions. It is packed hard against
+ * the end of the name so any padding for rounding is between the file type and
+ * the tag.
+ */
+typedef struct xfs_dir2_data_entry {
+	__be64			inumber;	/* inode number */
+	__u8			namelen;	/* name length */
+	__u8			name[];		/* name bytes, no null */
+     /* __u8			filetype; */	/* type of inode we point to */
+     /*	__be16                  tag; */		/* starting offset of us */
+} xfs_dir2_data_entry_t;
+
+/*
+ * Unused entry in a data block.
+ *
+ * Aligned to 8 bytes.  Tag appears as the last 2 bytes and must be accessed
+ * using xfs_dir2_data_unused_tag_p.
+ */
+typedef struct xfs_dir2_data_unused {
+	__be16			freetag;	/* XFS_DIR2_DATA_FREE_TAG */
+	__be16			length;		/* total free length */
+						/* variable offset */
+	__be16			tag;		/* starting offset of us */
+} xfs_dir2_data_unused_t;
+
+/*
+ * Size of a data entry.
+ */
+static inline int
+__xfs_dir3_data_entsize(
+	bool	ftype,
+	int	n)
+{
+	int	size = offsetof(struct xfs_dir2_data_entry, name[0]);
+
+	size += n;
+	size += sizeof(xfs_dir2_data_off_t);
+	if (ftype)
+		size += sizeof(__uint8_t);
+	return roundup(size, XFS_DIR2_DATA_ALIGN);
+}
+static inline int
+xfs_dir3_data_entsize(
+	struct xfs_mount	*mp,
+	int			n)
+{
+	bool ftype = xfs_sb_version_hasftype(&mp->m_sb) ? true : false;
+	return __xfs_dir3_data_entsize(ftype, n);
+}
+
+static inline __uint8_t
+xfs_dir3_dirent_get_ftype(
+	struct xfs_mount	*mp,
+	struct xfs_dir2_data_entry *dep)
+{
+	if (xfs_sb_version_hasftype(&mp->m_sb)) {
+		__uint8_t	type = dep->name[dep->namelen];
+
+		ASSERT(type < XFS_DIR3_FT_MAX);
+		if (type < XFS_DIR3_FT_MAX)
+			return type;
+
+	}
+	return XFS_DIR3_FT_UNKNOWN;
+}
+
+static inline void
+xfs_dir3_dirent_put_ftype(
+	struct xfs_mount	*mp,
+	struct xfs_dir2_data_entry *dep,
+	__uint8_t		type)
+{
+	ASSERT(type < XFS_DIR3_FT_MAX);
+	ASSERT(dep->namelen != 0);
+
+	if (xfs_sb_version_hasftype(&mp->m_sb))
+		dep->name[dep->namelen] = type;
+}
+
+/*
+ * Pointer to an entry's tag word.
+ */
+static inline __be16 *
+xfs_dir3_data_entry_tag_p(
+	struct xfs_mount	*mp,
+	struct xfs_dir2_data_entry *dep)
+{
+	return (__be16 *)((char *)dep +
+		xfs_dir3_data_entsize(mp, dep->namelen) - sizeof(__be16));
+}
+
+/*
+ * Pointer to a freespace's tag word.
+ */
+static inline __be16 *
+xfs_dir2_data_unused_tag_p(struct xfs_dir2_data_unused *dup)
+{
+	return (__be16 *)((char *)dup +
+			be16_to_cpu(dup->length) - sizeof(__be16));
+}
+
+static inline size_t
+xfs_dir3_data_hdr_size(bool dir3)
+{
+	if (dir3)
+		return sizeof(struct xfs_dir3_data_hdr);
+	return sizeof(struct xfs_dir2_data_hdr);
+}
+
+static inline size_t
+xfs_dir3_data_entry_offset(struct xfs_dir2_data_hdr *hdr)
+{
+	bool dir3 = hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) ||
+		    hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC);
+	return xfs_dir3_data_hdr_size(dir3);
+}
+
+static inline struct xfs_dir2_data_entry *
+xfs_dir3_data_entry_p(struct xfs_dir2_data_hdr *hdr)
+{
+	return (struct xfs_dir2_data_entry *)
+		((char *)hdr + xfs_dir3_data_entry_offset(hdr));
+}
+
+static inline struct xfs_dir2_data_unused *
+xfs_dir3_data_unused_p(struct xfs_dir2_data_hdr *hdr)
+{
+	return (struct xfs_dir2_data_unused *)
+		((char *)hdr + xfs_dir3_data_entry_offset(hdr));
+}
+
+/*
+ * Offsets of . and .. in data space (always block 0)
+ *
+ * XXX: there is scope for significant optimisation of the logic here. Right
+ * now we are checking for "dir3 format" over and over again. Ideally we should
+ * only do it once for each operation.
+ */
+static inline xfs_dir2_data_aoff_t
+xfs_dir3_data_dot_offset(struct xfs_mount *mp)
+{
+	return xfs_dir3_data_hdr_size(xfs_sb_version_hascrc(&mp->m_sb));
+}
+
+static inline xfs_dir2_data_aoff_t
+xfs_dir3_data_dotdot_offset(struct xfs_mount *mp)
+{
+	return xfs_dir3_data_dot_offset(mp) +
+		xfs_dir3_data_entsize(mp, 1);
+}
+
+static inline xfs_dir2_data_aoff_t
+xfs_dir3_data_first_offset(struct xfs_mount *mp)
+{
+	return xfs_dir3_data_dotdot_offset(mp) +
+		xfs_dir3_data_entsize(mp, 2);
+}
+
+/*
+ * location of . and .. in data space (always block 0)
+ */
+static inline struct xfs_dir2_data_entry *
+xfs_dir3_data_dot_entry_p(
+	struct xfs_mount	*mp,
+	struct xfs_dir2_data_hdr *hdr)
+{
+	return (struct xfs_dir2_data_entry *)
+		((char *)hdr + xfs_dir3_data_dot_offset(mp));
+}
+
+static inline struct xfs_dir2_data_entry *
+xfs_dir3_data_dotdot_entry_p(
+	struct xfs_mount	*mp,
+	struct xfs_dir2_data_hdr *hdr)
+{
+	return (struct xfs_dir2_data_entry *)
+		((char *)hdr + xfs_dir3_data_dotdot_offset(mp));
+}
+
+static inline struct xfs_dir2_data_entry *
+xfs_dir3_data_first_entry_p(
+	struct xfs_mount	*mp,
+	struct xfs_dir2_data_hdr *hdr)
+{
+	return (struct xfs_dir2_data_entry *)
+		((char *)hdr + xfs_dir3_data_first_offset(mp));
+}
+
+/*
+ * Leaf block structures.
+ *
+ * A pure leaf block looks like the following drawing on disk:
+ *
+ *    +---------------------------+
+ *    | xfs_dir2_leaf_hdr_t       |
+ *    +---------------------------+
+ *    | xfs_dir2_leaf_entry_t     |
+ *    | xfs_dir2_leaf_entry_t     |
+ *    | xfs_dir2_leaf_entry_t     |
+ *    | xfs_dir2_leaf_entry_t     |
+ *    | ...                       |
+ *    +---------------------------+
+ *    | xfs_dir2_data_off_t       |
+ *    | xfs_dir2_data_off_t       |
+ *    | xfs_dir2_data_off_t       |
+ *    | ...                       |
+ *    +---------------------------+
+ *    | xfs_dir2_leaf_tail_t      |
+ *    +---------------------------+
+ *
+ * The xfs_dir2_data_off_t members (bests) and tail are at the end of the block
+ * for single-leaf (magic = XFS_DIR2_LEAF1_MAGIC) blocks only, but not present
+ * for directories with separate leaf nodes and free space blocks
+ * (magic = XFS_DIR2_LEAFN_MAGIC).
+ *
+ * As all the entries are variable size structures the accessors below should
+ * be used to iterate over them.
+ */
+
+/*
+ * Offset of the leaf/node space.  First block in this space
+ * is the btree root.
+ */
+#define	XFS_DIR2_LEAF_SPACE	1
+#define	XFS_DIR2_LEAF_OFFSET	(XFS_DIR2_LEAF_SPACE * XFS_DIR2_SPACE_SIZE)
+#define	XFS_DIR2_LEAF_FIRSTDB(mp)	\
+	xfs_dir2_byte_to_db(mp, XFS_DIR2_LEAF_OFFSET)
+
+/*
+ * Leaf block header.
+ */
+typedef struct xfs_dir2_leaf_hdr {
+	xfs_da_blkinfo_t	info;		/* header for da routines */
+	__be16			count;		/* count of entries */
+	__be16			stale;		/* count of stale entries */
+} xfs_dir2_leaf_hdr_t;
+
+struct xfs_dir3_leaf_hdr {
+	struct xfs_da3_blkinfo	info;		/* header for da routines */
+	__be16			count;		/* count of entries */
+	__be16			stale;		/* count of stale entries */
+	__be32			pad;		/* 64 bit alignment */
+};
+
+struct xfs_dir3_icleaf_hdr {
+	__uint32_t		forw;
+	__uint32_t		back;
+	__uint16_t		magic;
+	__uint16_t		count;
+	__uint16_t		stale;
+};
+
+/*
+ * Leaf block entry.
+ */
+typedef struct xfs_dir2_leaf_entry {
+	__be32			hashval;	/* hash value of name */
+	__be32			address;	/* address of data entry */
+} xfs_dir2_leaf_entry_t;
+
+/*
+ * Leaf block tail.
+ */
+typedef struct xfs_dir2_leaf_tail {
+	__be32			bestcount;
+} xfs_dir2_leaf_tail_t;
+
+/*
+ * Leaf block.
+ */
+typedef struct xfs_dir2_leaf {
+	xfs_dir2_leaf_hdr_t	hdr;			/* leaf header */
+	xfs_dir2_leaf_entry_t	__ents[];		/* entries */
+} xfs_dir2_leaf_t;
+
+struct xfs_dir3_leaf {
+	struct xfs_dir3_leaf_hdr	hdr;		/* leaf header */
+	struct xfs_dir2_leaf_entry	__ents[];	/* entries */
+};
+
+#define XFS_DIR3_LEAF_CRC_OFF  offsetof(struct xfs_dir3_leaf_hdr, info.crc)
+
+extern void xfs_dir3_leaf_hdr_from_disk(struct xfs_dir3_icleaf_hdr *to,
+					struct xfs_dir2_leaf *from);
+
+static inline int
+xfs_dir3_leaf_hdr_size(struct xfs_dir2_leaf *lp)
+{
+	if (lp->hdr.info.magic == cpu_to_be16(XFS_DIR3_LEAF1_MAGIC) ||
+	    lp->hdr.info.magic == cpu_to_be16(XFS_DIR3_LEAFN_MAGIC))
+		return sizeof(struct xfs_dir3_leaf_hdr);
+	return sizeof(struct xfs_dir2_leaf_hdr);
+}
+
+static inline int
+xfs_dir3_max_leaf_ents(struct xfs_mount *mp, struct xfs_dir2_leaf *lp)
+{
+	return (mp->m_dirblksize - xfs_dir3_leaf_hdr_size(lp)) /
+		(uint)sizeof(struct xfs_dir2_leaf_entry);
+}
+
+/*
+ * Get address of the bestcount field in the single-leaf block.
+ */
+static inline struct xfs_dir2_leaf_entry *
+xfs_dir3_leaf_ents_p(struct xfs_dir2_leaf *lp)
+{
+	if (lp->hdr.info.magic == cpu_to_be16(XFS_DIR3_LEAF1_MAGIC) ||
+	    lp->hdr.info.magic == cpu_to_be16(XFS_DIR3_LEAFN_MAGIC)) {
+		struct xfs_dir3_leaf *lp3 = (struct xfs_dir3_leaf *)lp;
+		return lp3->__ents;
+	}
+	return lp->__ents;
+}
+
+/*
+ * Get address of the bestcount field in the single-leaf block.
+ */
+static inline struct xfs_dir2_leaf_tail *
+xfs_dir2_leaf_tail_p(struct xfs_mount *mp, struct xfs_dir2_leaf *lp)
+{
+	return (struct xfs_dir2_leaf_tail *)
+		((char *)lp + mp->m_dirblksize -
+		  sizeof(struct xfs_dir2_leaf_tail));
+}
+
+/*
+ * Get address of the bests array in the single-leaf block.
+ */
+static inline __be16 *
+xfs_dir2_leaf_bests_p(struct xfs_dir2_leaf_tail *ltp)
+{
+	return (__be16 *)ltp - be32_to_cpu(ltp->bestcount);
+}
+
+/*
+ * DB blocks here are logical directory block numbers, not filesystem blocks.
+ */
+
+/*
+ * Convert dataptr to byte in file space
+ */
+static inline xfs_dir2_off_t
+xfs_dir2_dataptr_to_byte(struct xfs_mount *mp, xfs_dir2_dataptr_t dp)
+{
+	return (xfs_dir2_off_t)dp << XFS_DIR2_DATA_ALIGN_LOG;
+}
+
+/*
+ * Convert byte in file space to dataptr.  It had better be aligned.
+ */
+static inline xfs_dir2_dataptr_t
+xfs_dir2_byte_to_dataptr(struct xfs_mount *mp, xfs_dir2_off_t by)
+{
+	return (xfs_dir2_dataptr_t)(by >> XFS_DIR2_DATA_ALIGN_LOG);
+}
+
+/*
+ * Convert byte in space to (DB) block
+ */
+static inline xfs_dir2_db_t
+xfs_dir2_byte_to_db(struct xfs_mount *mp, xfs_dir2_off_t by)
+{
+	return (xfs_dir2_db_t)
+		(by >> (mp->m_sb.sb_blocklog + mp->m_sb.sb_dirblklog));
+}
+
+/*
+ * Convert dataptr to a block number
+ */
+static inline xfs_dir2_db_t
+xfs_dir2_dataptr_to_db(struct xfs_mount *mp, xfs_dir2_dataptr_t dp)
+{
+	return xfs_dir2_byte_to_db(mp, xfs_dir2_dataptr_to_byte(mp, dp));
+}
+
+/*
+ * Convert byte in space to offset in a block
+ */
+static inline xfs_dir2_data_aoff_t
+xfs_dir2_byte_to_off(struct xfs_mount *mp, xfs_dir2_off_t by)
+{
+	return (xfs_dir2_data_aoff_t)(by &
+		((1 << (mp->m_sb.sb_blocklog + mp->m_sb.sb_dirblklog)) - 1));
+}
+
+/*
+ * Convert dataptr to a byte offset in a block
+ */
+static inline xfs_dir2_data_aoff_t
+xfs_dir2_dataptr_to_off(struct xfs_mount *mp, xfs_dir2_dataptr_t dp)
+{
+	return xfs_dir2_byte_to_off(mp, xfs_dir2_dataptr_to_byte(mp, dp));
+}
+
+/*
+ * Convert block and offset to byte in space
+ */
+static inline xfs_dir2_off_t
+xfs_dir2_db_off_to_byte(struct xfs_mount *mp, xfs_dir2_db_t db,
+			xfs_dir2_data_aoff_t o)
+{
+	return ((xfs_dir2_off_t)db <<
+		(mp->m_sb.sb_blocklog + mp->m_sb.sb_dirblklog)) + o;
+}
+
+/*
+ * Convert block (DB) to block (dablk)
+ */
+static inline xfs_dablk_t
+xfs_dir2_db_to_da(struct xfs_mount *mp, xfs_dir2_db_t db)
+{
+	return (xfs_dablk_t)(db << mp->m_sb.sb_dirblklog);
+}
+
+/*
+ * Convert byte in space to (DA) block
+ */
+static inline xfs_dablk_t
+xfs_dir2_byte_to_da(struct xfs_mount *mp, xfs_dir2_off_t by)
+{
+	return xfs_dir2_db_to_da(mp, xfs_dir2_byte_to_db(mp, by));
+}
+
+/*
+ * Convert block and offset to dataptr
+ */
+static inline xfs_dir2_dataptr_t
+xfs_dir2_db_off_to_dataptr(struct xfs_mount *mp, xfs_dir2_db_t db,
+			   xfs_dir2_data_aoff_t o)
+{
+	return xfs_dir2_byte_to_dataptr(mp, xfs_dir2_db_off_to_byte(mp, db, o));
+}
+
+/*
+ * Convert block (dablk) to block (DB)
+ */
+static inline xfs_dir2_db_t
+xfs_dir2_da_to_db(struct xfs_mount *mp, xfs_dablk_t da)
+{
+	return (xfs_dir2_db_t)(da >> mp->m_sb.sb_dirblklog);
+}
+
+/*
+ * Convert block (dablk) to byte offset in space
+ */
+static inline xfs_dir2_off_t
+xfs_dir2_da_to_byte(struct xfs_mount *mp, xfs_dablk_t da)
+{
+	return xfs_dir2_db_off_to_byte(mp, xfs_dir2_da_to_db(mp, da), 0);
+}
+
+/*
+ * Free space block defintions for the node format.
+ */
+
+/*
+ * Offset of the freespace index.
+ */
+#define	XFS_DIR2_FREE_SPACE	2
+#define	XFS_DIR2_FREE_OFFSET	(XFS_DIR2_FREE_SPACE * XFS_DIR2_SPACE_SIZE)
+#define	XFS_DIR2_FREE_FIRSTDB(mp)	\
+	xfs_dir2_byte_to_db(mp, XFS_DIR2_FREE_OFFSET)
+
+typedef	struct xfs_dir2_free_hdr {
+	__be32			magic;		/* XFS_DIR2_FREE_MAGIC */
+	__be32			firstdb;	/* db of first entry */
+	__be32			nvalid;		/* count of valid entries */
+	__be32			nused;		/* count of used entries */
+} xfs_dir2_free_hdr_t;
+
+typedef struct xfs_dir2_free {
+	xfs_dir2_free_hdr_t	hdr;		/* block header */
+	__be16			bests[];	/* best free counts */
+						/* unused entries are -1 */
+} xfs_dir2_free_t;
+
+struct xfs_dir3_free_hdr {
+	struct xfs_dir3_blk_hdr	hdr;
+	__be32			firstdb;	/* db of first entry */
+	__be32			nvalid;		/* count of valid entries */
+	__be32			nused;		/* count of used entries */
+	__be32			pad;		/* 64 bit alignment */
+};
+
+struct xfs_dir3_free {
+	struct xfs_dir3_free_hdr hdr;
+	__be16			bests[];	/* best free counts */
+						/* unused entries are -1 */
+};
+
+#define XFS_DIR3_FREE_CRC_OFF  offsetof(struct xfs_dir3_free, hdr.hdr.crc)
+
+/*
+ * In core version of the free block header, abstracted away from on-disk format
+ * differences. Use this in the code, and convert to/from the disk version using
+ * xfs_dir3_free_hdr_from_disk/xfs_dir3_free_hdr_to_disk.
+ */
+struct xfs_dir3_icfree_hdr {
+	__uint32_t	magic;
+	__uint32_t	firstdb;
+	__uint32_t	nvalid;
+	__uint32_t	nused;
+
+};
+
+void xfs_dir3_free_hdr_from_disk(struct xfs_dir3_icfree_hdr *to,
+				 struct xfs_dir2_free *from);
+
+static inline int
+xfs_dir3_free_hdr_size(struct xfs_mount *mp)
+{
+	if (xfs_sb_version_hascrc(&mp->m_sb))
+		return sizeof(struct xfs_dir3_free_hdr);
+	return sizeof(struct xfs_dir2_free_hdr);
+}
+
+static inline int
+xfs_dir3_free_max_bests(struct xfs_mount *mp)
+{
+	return (mp->m_dirblksize - xfs_dir3_free_hdr_size(mp)) /
+		sizeof(xfs_dir2_data_off_t);
+}
+
+static inline __be16 *
+xfs_dir3_free_bests_p(struct xfs_mount *mp, struct xfs_dir2_free *free)
+{
+	return (__be16 *)((char *)free + xfs_dir3_free_hdr_size(mp));
+}
+
+/*
+ * Convert data space db to the corresponding free db.
+ */
+static inline xfs_dir2_db_t
+xfs_dir2_db_to_fdb(struct xfs_mount *mp, xfs_dir2_db_t db)
+{
+	return XFS_DIR2_FREE_FIRSTDB(mp) + db / xfs_dir3_free_max_bests(mp);
+}
+
+/*
+ * Convert data space db to the corresponding index in a free db.
+ */
+static inline int
+xfs_dir2_db_to_fdindex(struct xfs_mount *mp, xfs_dir2_db_t db)
+{
+	return db % xfs_dir3_free_max_bests(mp);
+}
+
+/*
+ * Single block format.
+ *
+ * The single block format looks like the following drawing on disk:
+ *
+ *    +-------------------------------------------------+
+ *    | xfs_dir2_data_hdr_t                             |
+ *    +-------------------------------------------------+
+ *    | xfs_dir2_data_entry_t OR xfs_dir2_data_unused_t |
+ *    | xfs_dir2_data_entry_t OR xfs_dir2_data_unused_t |
+ *    | xfs_dir2_data_entry_t OR xfs_dir2_data_unused_t :
+ *    | ...                                             |
+ *    +-------------------------------------------------+
+ *    | unused space                                    |
+ *    +-------------------------------------------------+
+ *    | ...                                             |
+ *    | xfs_dir2_leaf_entry_t                           |
+ *    | xfs_dir2_leaf_entry_t                           |
+ *    +-------------------------------------------------+
+ *    | xfs_dir2_block_tail_t                           |
+ *    +-------------------------------------------------+
+ *
+ * As all the entries are variable size structures the accessors below should
+ * be used to iterate over them.
+ */
+
+typedef struct xfs_dir2_block_tail {
+	__be32		count;			/* count of leaf entries */
+	__be32		stale;			/* count of stale lf entries */
+} xfs_dir2_block_tail_t;
+
+/*
+ * Pointer to the leaf header embedded in a data block (1-block format)
+ */
+static inline struct xfs_dir2_block_tail *
+xfs_dir2_block_tail_p(struct xfs_mount *mp, struct xfs_dir2_data_hdr *hdr)
+{
+	return ((struct xfs_dir2_block_tail *)
+		((char *)hdr + mp->m_dirblksize)) - 1;
+}
+
+/*
+ * Pointer to the leaf entries embedded in a data block (1-block format)
+ */
+static inline struct xfs_dir2_leaf_entry *
+xfs_dir2_block_leaf_p(struct xfs_dir2_block_tail *btp)
+{
+	return ((struct xfs_dir2_leaf_entry *)btp) - be32_to_cpu(btp->count);
+}
+
+
+/*
+ * Attribute storage layout
+ *
+ * Attribute lists are structured around Btrees where all the data
+ * elements are in the leaf nodes.  Attribute names are hashed into an int,
+ * then that int is used as the index into the Btree.  Since the hashval
+ * of an attribute name may not be unique, we may have duplicate keys.  The
+ * internal links in the Btree are logical block offsets into the file.
+ *
+ *========================================================================
+ * Attribute structure when equal to XFS_LBSIZE(mp) bytes.
+ *========================================================================
+ *
+ * Struct leaf_entry's are packed from the top.  Name/values grow from the
+ * bottom but are not packed.  The freemap contains run-length-encoded entries
+ * for the free bytes after the leaf_entry's, but only the N largest such,
+ * smaller runs are dropped.  When the freemap doesn't show enough space
+ * for an allocation, we compact the name/value area and try again.  If we
+ * still don't have enough space, then we have to split the block.  The
+ * name/value structs (both local and remote versions) must be 32bit aligned.
+ *
+ * Since we have duplicate hash keys, for each key that matches, compare
+ * the actual name string.  The root and intermediate node search always
+ * takes the first-in-the-block key match found, so we should only have
+ * to work "forw"ard.  If none matches, continue with the "forw"ard leaf
+ * nodes until the hash key changes or the attribute name is found.
+ *
+ * We store the fact that an attribute is a ROOT/USER/SECURE attribute in
+ * the leaf_entry.  The namespaces are independent only because we also look
+ * at the namespace bit when we are looking for a matching attribute name.
+ *
+ * We also store an "incomplete" bit in the leaf_entry.  It shows that an
+ * attribute is in the middle of being created and should not be shown to
+ * the user if we crash during the time that the bit is set.  We clear the
+ * bit when we have finished setting up the attribute.  We do this because
+ * we cannot create some large attributes inside a single transaction, and we
+ * need some indication that we weren't finished if we crash in the middle.
+ */
+#define XFS_ATTR_LEAF_MAPSIZE	3	/* how many freespace slots */
+
+typedef struct xfs_attr_leaf_map {	/* RLE map of free bytes */
+	__be16	base;			  /* base of free region */
+	__be16	size;			  /* length of free region */
+} xfs_attr_leaf_map_t;
+
+typedef struct xfs_attr_leaf_hdr {	/* constant-structure header block */
+	xfs_da_blkinfo_t info;		/* block type, links, etc. */
+	__be16	count;			/* count of active leaf_entry's */
+	__be16	usedbytes;		/* num bytes of names/values stored */
+	__be16	firstused;		/* first used byte in name area */
+	__u8	holes;			/* != 0 if blk needs compaction */
+	__u8	pad1;
+	xfs_attr_leaf_map_t freemap[XFS_ATTR_LEAF_MAPSIZE];
+					/* N largest free regions */
+} xfs_attr_leaf_hdr_t;
+
+typedef struct xfs_attr_leaf_entry {	/* sorted on key, not name */
+	__be32	hashval;		/* hash value of name */
+	__be16	nameidx;		/* index into buffer of name/value */
+	__u8	flags;			/* LOCAL/ROOT/SECURE/INCOMPLETE flag */
+	__u8	pad2;			/* unused pad byte */
+} xfs_attr_leaf_entry_t;
+
+typedef struct xfs_attr_leaf_name_local {
+	__be16	valuelen;		/* number of bytes in value */
+	__u8	namelen;		/* length of name bytes */
+	__u8	nameval[1];		/* name/value bytes */
+} xfs_attr_leaf_name_local_t;
+
+typedef struct xfs_attr_leaf_name_remote {
+	__be32	valueblk;		/* block number of value bytes */
+	__be32	valuelen;		/* number of bytes in value */
+	__u8	namelen;		/* length of name bytes */
+	__u8	name[1];		/* name bytes */
+} xfs_attr_leaf_name_remote_t;
+
+typedef struct xfs_attr_leafblock {
+	xfs_attr_leaf_hdr_t	hdr;	/* constant-structure header block */
+	xfs_attr_leaf_entry_t	entries[1];	/* sorted on key, not name */
+	xfs_attr_leaf_name_local_t namelist;	/* grows from bottom of buf */
+	xfs_attr_leaf_name_remote_t valuelist;	/* grows from bottom of buf */
+} xfs_attr_leafblock_t;
+
+/*
+ * CRC enabled leaf structures. Called "version 3" structures to match the
+ * version number of the directory and dablk structures for this feature, and
+ * attr2 is already taken by the variable inode attribute fork size feature.
+ */
+struct xfs_attr3_leaf_hdr {
+	struct xfs_da3_blkinfo	info;
+	__be16			count;
+	__be16			usedbytes;
+	__be16			firstused;
+	__u8			holes;
+	__u8			pad1;
+	struct xfs_attr_leaf_map freemap[XFS_ATTR_LEAF_MAPSIZE];
+	__be32			pad2;		/* 64 bit alignment */
+};
+
+#define XFS_ATTR3_LEAF_CRC_OFF	(offsetof(struct xfs_attr3_leaf_hdr, info.crc))
+
+struct xfs_attr3_leafblock {
+	struct xfs_attr3_leaf_hdr	hdr;
+	struct xfs_attr_leaf_entry	entries[1];
+
+	/*
+	 * The rest of the block contains the following structures after the
+	 * leaf entries, growing from the bottom up. The variables are never
+	 * referenced, the locations accessed purely from helper functions.
+	 *
+	 * struct xfs_attr_leaf_name_local
+	 * struct xfs_attr_leaf_name_remote
+	 */
+};
+
+/*
+ * incore, neutral version of the attribute leaf header
+ */
+struct xfs_attr3_icleaf_hdr {
+	__uint32_t	forw;
+	__uint32_t	back;
+	__uint16_t	magic;
+	__uint16_t	count;
+	__uint16_t	usedbytes;
+	__uint16_t	firstused;
+	__u8		holes;
+	struct {
+		__uint16_t	base;
+		__uint16_t	size;
+	} freemap[XFS_ATTR_LEAF_MAPSIZE];
+};
+
+/*
+ * Flags used in the leaf_entry[i].flags field.
+ * NOTE: the INCOMPLETE bit must not collide with the flags bits specified
+ * on the system call, they are "or"ed together for various operations.
+ */
+#define	XFS_ATTR_LOCAL_BIT	0	/* attr is stored locally */
+#define	XFS_ATTR_ROOT_BIT	1	/* limit access to trusted attrs */
+#define	XFS_ATTR_SECURE_BIT	2	/* limit access to secure attrs */
+#define	XFS_ATTR_INCOMPLETE_BIT	7	/* attr in middle of create/delete */
+#define XFS_ATTR_LOCAL		(1 << XFS_ATTR_LOCAL_BIT)
+#define XFS_ATTR_ROOT		(1 << XFS_ATTR_ROOT_BIT)
+#define XFS_ATTR_SECURE		(1 << XFS_ATTR_SECURE_BIT)
+#define XFS_ATTR_INCOMPLETE	(1 << XFS_ATTR_INCOMPLETE_BIT)
+
+/*
+ * Conversion macros for converting namespace bits from argument flags
+ * to ondisk flags.
+ */
+#define XFS_ATTR_NSP_ARGS_MASK		(ATTR_ROOT | ATTR_SECURE)
+#define XFS_ATTR_NSP_ONDISK_MASK	(XFS_ATTR_ROOT | XFS_ATTR_SECURE)
+#define XFS_ATTR_NSP_ONDISK(flags)	((flags) & XFS_ATTR_NSP_ONDISK_MASK)
+#define XFS_ATTR_NSP_ARGS(flags)	((flags) & XFS_ATTR_NSP_ARGS_MASK)
+#define XFS_ATTR_NSP_ARGS_TO_ONDISK(x)	(((x) & ATTR_ROOT ? XFS_ATTR_ROOT : 0) |\
+					 ((x) & ATTR_SECURE ? XFS_ATTR_SECURE : 0))
+#define XFS_ATTR_NSP_ONDISK_TO_ARGS(x)	(((x) & XFS_ATTR_ROOT ? ATTR_ROOT : 0) |\
+					 ((x) & XFS_ATTR_SECURE ? ATTR_SECURE : 0))
+
+/*
+ * Alignment for namelist and valuelist entries (since they are mixed
+ * there can be only one alignment value)
+ */
+#define	XFS_ATTR_LEAF_NAME_ALIGN	((uint)sizeof(xfs_dablk_t))
+
+static inline int
+xfs_attr3_leaf_hdr_size(struct xfs_attr_leafblock *leafp)
+{
+	if (leafp->hdr.info.magic == cpu_to_be16(XFS_ATTR3_LEAF_MAGIC))
+		return sizeof(struct xfs_attr3_leaf_hdr);
+	return sizeof(struct xfs_attr_leaf_hdr);
+}
+
+static inline struct xfs_attr_leaf_entry *
+xfs_attr3_leaf_entryp(xfs_attr_leafblock_t *leafp)
+{
+	if (leafp->hdr.info.magic == cpu_to_be16(XFS_ATTR3_LEAF_MAGIC))
+		return &((struct xfs_attr3_leafblock *)leafp)->entries[0];
+	return &leafp->entries[0];
+}
+
+/*
+ * Cast typed pointers for "local" and "remote" name/value structs.
+ */
+static inline char *
+xfs_attr3_leaf_name(xfs_attr_leafblock_t *leafp, int idx)
+{
+	struct xfs_attr_leaf_entry *entries = xfs_attr3_leaf_entryp(leafp);
+
+	return &((char *)leafp)[be16_to_cpu(entries[idx].nameidx)];
+}
+
+static inline xfs_attr_leaf_name_remote_t *
+xfs_attr3_leaf_name_remote(xfs_attr_leafblock_t *leafp, int idx)
+{
+	return (xfs_attr_leaf_name_remote_t *)xfs_attr3_leaf_name(leafp, idx);
+}
+
+static inline xfs_attr_leaf_name_local_t *
+xfs_attr3_leaf_name_local(xfs_attr_leafblock_t *leafp, int idx)
+{
+	return (xfs_attr_leaf_name_local_t *)xfs_attr3_leaf_name(leafp, idx);
+}
+
+/*
+ * Calculate total bytes used (including trailing pad for alignment) for
+ * a "local" name/value structure, a "remote" name/value structure, and
+ * a pointer which might be either.
+ */
+static inline int xfs_attr_leaf_entsize_remote(int nlen)
+{
+	return ((uint)sizeof(xfs_attr_leaf_name_remote_t) - 1 + (nlen) + \
+		XFS_ATTR_LEAF_NAME_ALIGN - 1) & ~(XFS_ATTR_LEAF_NAME_ALIGN - 1);
+}
+
+static inline int xfs_attr_leaf_entsize_local(int nlen, int vlen)
+{
+	return ((uint)sizeof(xfs_attr_leaf_name_local_t) - 1 + (nlen) + (vlen) +
+		XFS_ATTR_LEAF_NAME_ALIGN - 1) & ~(XFS_ATTR_LEAF_NAME_ALIGN - 1);
+}
+
+static inline int xfs_attr_leaf_entsize_local_max(int bsize)
+{
+	return (((bsize) >> 1) + ((bsize) >> 2));
+}
+
+
+
+/*
+ * Remote attribute block format definition
+ *
+ * There is one of these headers per filesystem block in a remote attribute.
+ * This is done to ensure there is a 1:1 mapping between the attribute value
+ * length and the number of blocks needed to store the attribute. This makes the
+ * verification of a buffer a little more complex, but greatly simplifies the
+ * allocation, reading and writing of these attributes as we don't have to guess
+ * the number of blocks needed to store the attribute data.
+ */
+#define XFS_ATTR3_RMT_MAGIC	0x5841524d	/* XARM */
+
+struct xfs_attr3_rmt_hdr {
+	__be32	rm_magic;
+	__be32	rm_offset;
+	__be32	rm_bytes;
+	__be32	rm_crc;
+	uuid_t	rm_uuid;
+	__be64	rm_owner;
+	__be64	rm_blkno;
+	__be64	rm_lsn;
+};
+
+#define XFS_ATTR3_RMT_CRC_OFF	offsetof(struct xfs_attr3_rmt_hdr, rm_crc)
+
+#define XFS_ATTR3_RMT_BUF_SPACE(mp, bufsize)	\
+	((bufsize) - (xfs_sb_version_hascrc(&(mp)->m_sb) ? \
+			sizeof(struct xfs_attr3_rmt_hdr) : 0))
+
+#endif /* __XFS_DA_FORMAT_H__ */
diff --git a/fs/xfs/xfs_dir2.c b/fs/xfs/xfs_dir2.c
index edf203ab50af..f46777fa3077 100644
--- a/fs/xfs/xfs_dir2.c
+++ b/fs/xfs/xfs_dir2.c
@@ -24,6 +24,7 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
@@ -31,7 +32,6 @@
 #include "xfs_inode.h"
 #include "xfs_inode_item.h"
 #include "xfs_bmap.h"
-#include "xfs_dir2_format.h"
 #include "xfs_dir2.h"
 #include "xfs_dir2_priv.h"
 #include "xfs_error.h"
diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c
index 12dad188939d..5f172730bfa3 100644
--- a/fs/xfs/xfs_dir2_block.c
+++ b/fs/xfs/xfs_dir2_block.c
@@ -24,6 +24,7 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_dinode.h"
@@ -31,7 +32,6 @@
 #include "xfs_inode_item.h"
 #include "xfs_bmap.h"
 #include "xfs_buf_item.h"
-#include "xfs_dir2_format.h"
 #include "xfs_dir2.h"
 #include "xfs_dir2_priv.h"
 #include "xfs_error.h"
diff --git a/fs/xfs/xfs_dir2_data.c b/fs/xfs/xfs_dir2_data.c
index 47e1326c169a..8cf8034ebab1 100644
--- a/fs/xfs/xfs_dir2_data.c
+++ b/fs/xfs/xfs_dir2_data.c
@@ -24,11 +24,11 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
-#include "xfs_dir2_format.h"
 #include "xfs_dir2.h"
 #include "xfs_dir2_priv.h"
 #include "xfs_error.h"
diff --git a/fs/xfs/xfs_dir2_format.h b/fs/xfs/xfs_dir2_format.h
deleted file mode 100644
index 9cf67381adf6..000000000000
--- a/fs/xfs/xfs_dir2_format.h
+++ /dev/null
@@ -1,964 +0,0 @@
-/*
- * Copyright (c) 2000-2001,2005 Silicon Graphics, Inc.
- * Copyright (c) 2013 Red Hat, Inc.
- * All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it would be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write the Free Software Foundation,
- * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-#ifndef __XFS_DIR2_FORMAT_H__
-#define __XFS_DIR2_FORMAT_H__
-
-/*
- * Directory version 2.
- *
- * There are 4 possible formats:
- *  - shortform - embedded into the inode
- *  - single block - data with embedded leaf at the end
- *  - multiple data blocks, single leaf+freeindex block
- *  - data blocks, node and leaf blocks (btree), freeindex blocks
- *
- * Note: many node blocks structures and constants are shared with the attr
- * code and defined in xfs_da_btree.h.
- */
-
-#define	XFS_DIR2_BLOCK_MAGIC	0x58443242	/* XD2B: single block dirs */
-#define	XFS_DIR2_DATA_MAGIC	0x58443244	/* XD2D: multiblock dirs */
-#define	XFS_DIR2_FREE_MAGIC	0x58443246	/* XD2F: free index blocks */
-
-/*
- * Directory Version 3 With CRCs.
- *
- * The tree formats are the same as for version 2 directories.  The difference
- * is in the block header and dirent formats. In many cases the v3 structures
- * use v2 definitions as they are no different and this makes code sharing much
- * easier.
- *
- * Also, the xfs_dir3_*() functions handle both v2 and v3 formats - if the
- * format is v2 then they switch to the existing v2 code, or the format is v3
- * they implement the v3 functionality. This means the existing dir2 is a mix of
- * xfs_dir2/xfs_dir3 calls and functions. The xfs_dir3 functions are called
- * where there is a difference in the formats, otherwise the code is unchanged.
- *
- * Where it is possible, the code decides what to do based on the magic numbers
- * in the blocks rather than feature bits in the superblock. This means the code
- * is as independent of the external XFS code as possible as doesn't require
- * passing struct xfs_mount pointers into places where it isn't really
- * necessary.
- *
- * Version 3 includes:
- *
- *	- a larger block header for CRC and identification purposes and so the
- *	offsets of all the structures inside the blocks are different.
- *
- *	- new magic numbers to be able to detect the v2/v3 types on the fly.
- */
-
-#define	XFS_DIR3_BLOCK_MAGIC	0x58444233	/* XDB3: single block dirs */
-#define	XFS_DIR3_DATA_MAGIC	0x58444433	/* XDD3: multiblock dirs */
-#define	XFS_DIR3_FREE_MAGIC	0x58444633	/* XDF3: free index blocks */
-
-/*
- * Dirents in version 3 directories have a file type field. Additions to this
- * list are an on-disk format change, requiring feature bits. Valid values
- * are as follows:
- */
-#define XFS_DIR3_FT_UNKNOWN		0
-#define XFS_DIR3_FT_REG_FILE		1
-#define XFS_DIR3_FT_DIR			2
-#define XFS_DIR3_FT_CHRDEV		3
-#define XFS_DIR3_FT_BLKDEV		4
-#define XFS_DIR3_FT_FIFO		5
-#define XFS_DIR3_FT_SOCK		6
-#define XFS_DIR3_FT_SYMLINK		7
-#define XFS_DIR3_FT_WHT			8
-
-#define XFS_DIR3_FT_MAX			9
-
-/*
- * Byte offset in data block and shortform entry.
- */
-typedef	__uint16_t	xfs_dir2_data_off_t;
-#define	NULLDATAOFF	0xffffU
-typedef uint		xfs_dir2_data_aoff_t;	/* argument form */
-
-/*
- * Normalized offset (in a data block) of the entry, really xfs_dir2_data_off_t.
- * Only need 16 bits, this is the byte offset into the single block form.
- */
-typedef struct { __uint8_t i[2]; } __arch_pack xfs_dir2_sf_off_t;
-
-/*
- * Offset in data space of a data entry.
- */
-typedef	__uint32_t	xfs_dir2_dataptr_t;
-#define	XFS_DIR2_MAX_DATAPTR	((xfs_dir2_dataptr_t)0xffffffff)
-#define	XFS_DIR2_NULL_DATAPTR	((xfs_dir2_dataptr_t)0)
-
-/*
- * Byte offset in a directory.
- */
-typedef	xfs_off_t	xfs_dir2_off_t;
-
-/*
- * Directory block number (logical dirblk in file)
- */
-typedef	__uint32_t	xfs_dir2_db_t;
-
-/*
- * Inode number stored as 8 8-bit values.
- */
-typedef	struct { __uint8_t i[8]; } xfs_dir2_ino8_t;
-
-/*
- * Inode number stored as 4 8-bit values.
- * Works a lot of the time, when all the inode numbers in a directory
- * fit in 32 bits.
- */
-typedef struct { __uint8_t i[4]; } xfs_dir2_ino4_t;
-
-typedef union {
-	xfs_dir2_ino8_t	i8;
-	xfs_dir2_ino4_t	i4;
-} xfs_dir2_inou_t;
-#define	XFS_DIR2_MAX_SHORT_INUM	((xfs_ino_t)0xffffffffULL)
-
-/*
- * Directory layout when stored internal to an inode.
- *
- * Small directories are packed as tightly as possible so as to fit into the
- * literal area of the inode.  These "shortform" directories consist of a
- * single xfs_dir2_sf_hdr header followed by zero or more xfs_dir2_sf_entry
- * structures.  Due the different inode number storage size and the variable
- * length name field in the xfs_dir2_sf_entry all these structure are
- * variable length, and the accessors in this file should be used to iterate
- * over them.
- */
-typedef struct xfs_dir2_sf_hdr {
-	__uint8_t		count;		/* count of entries */
-	__uint8_t		i8count;	/* count of 8-byte inode #s */
-	xfs_dir2_inou_t		parent;		/* parent dir inode number */
-} __arch_pack xfs_dir2_sf_hdr_t;
-
-typedef struct xfs_dir2_sf_entry {
-	__u8			namelen;	/* actual name length */
-	xfs_dir2_sf_off_t	offset;		/* saved offset */
-	__u8			name[];		/* name, variable size */
-	/*
-	 * A single byte containing the file type field follows the inode
-	 * number for version 3 directory entries.
-	 *
-	 * A xfs_dir2_ino8_t or xfs_dir2_ino4_t follows here, at a
-	 * variable offset after the name.
-	 */
-} __arch_pack xfs_dir2_sf_entry_t;
-
-static inline int xfs_dir2_sf_hdr_size(int i8count)
-{
-	return sizeof(struct xfs_dir2_sf_hdr) -
-		(i8count == 0) *
-		(sizeof(xfs_dir2_ino8_t) - sizeof(xfs_dir2_ino4_t));
-}
-
-static inline xfs_dir2_data_aoff_t
-xfs_dir2_sf_get_offset(xfs_dir2_sf_entry_t *sfep)
-{
-	return get_unaligned_be16(&sfep->offset.i);
-}
-
-static inline void
-xfs_dir2_sf_put_offset(xfs_dir2_sf_entry_t *sfep, xfs_dir2_data_aoff_t off)
-{
-	put_unaligned_be16(off, &sfep->offset.i);
-}
-
-static inline struct xfs_dir2_sf_entry *
-xfs_dir2_sf_firstentry(struct xfs_dir2_sf_hdr *hdr)
-{
-	return (struct xfs_dir2_sf_entry *)
-		((char *)hdr + xfs_dir2_sf_hdr_size(hdr->i8count));
-}
-
-static inline int
-xfs_dir3_sf_entsize(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_sf_hdr	*hdr,
-	int			len)
-{
-	int count = sizeof(struct xfs_dir2_sf_entry); 	/* namelen + offset */
-
-	count += len;					/* name */
-	count += hdr->i8count ? sizeof(xfs_dir2_ino8_t) :
-				sizeof(xfs_dir2_ino4_t); /* ino # */
-	if (xfs_sb_version_hasftype(&mp->m_sb))
-		count += sizeof(__uint8_t);		/* file type */
-	return count;
-}
-
-static inline struct xfs_dir2_sf_entry *
-xfs_dir3_sf_nextentry(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_sf_hdr	*hdr,
-	struct xfs_dir2_sf_entry *sfep)
-{
-	return (struct xfs_dir2_sf_entry *)
-		((char *)sfep + xfs_dir3_sf_entsize(mp, hdr, sfep->namelen));
-}
-
-/*
- * in dir3 shortform directories, the file type field is stored at a variable
- * offset after the inode number. Because it's only a single byte, endian
- * conversion is not necessary.
- */
-static inline __uint8_t *
-xfs_dir3_sfe_ftypep(
-	struct xfs_dir2_sf_hdr	*hdr,
-	struct xfs_dir2_sf_entry *sfep)
-{
-	return (__uint8_t *)&sfep->name[sfep->namelen];
-}
-
-static inline __uint8_t
-xfs_dir3_sfe_get_ftype(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_sf_hdr	*hdr,
-	struct xfs_dir2_sf_entry *sfep)
-{
-	__uint8_t	*ftp;
-
-	if (!xfs_sb_version_hasftype(&mp->m_sb))
-		return XFS_DIR3_FT_UNKNOWN;
-
-	ftp = xfs_dir3_sfe_ftypep(hdr, sfep);
-	if (*ftp >= XFS_DIR3_FT_MAX)
-		return XFS_DIR3_FT_UNKNOWN;
-	return *ftp;
-}
-
-static inline void
-xfs_dir3_sfe_put_ftype(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_sf_hdr	*hdr,
-	struct xfs_dir2_sf_entry *sfep,
-	__uint8_t		ftype)
-{
-	__uint8_t	*ftp;
-
-	ASSERT(ftype < XFS_DIR3_FT_MAX);
-
-	if (!xfs_sb_version_hasftype(&mp->m_sb))
-		return;
-	ftp = xfs_dir3_sfe_ftypep(hdr, sfep);
-	*ftp = ftype;
-}
-
-/*
- * Data block structures.
- *
- * A pure data block looks like the following drawing on disk:
- *
- *    +-------------------------------------------------+
- *    | xfs_dir2_data_hdr_t                             |
- *    +-------------------------------------------------+
- *    | xfs_dir2_data_entry_t OR xfs_dir2_data_unused_t |
- *    | xfs_dir2_data_entry_t OR xfs_dir2_data_unused_t |
- *    | xfs_dir2_data_entry_t OR xfs_dir2_data_unused_t |
- *    | ...                                             |
- *    +-------------------------------------------------+
- *    | unused space                                    |
- *    +-------------------------------------------------+
- *
- * As all the entries are variable size structures the accessors below should
- * be used to iterate over them.
- *
- * In addition to the pure data blocks for the data and node formats,
- * most structures are also used for the combined data/freespace "block"
- * format below.
- */
-
-#define	XFS_DIR2_DATA_ALIGN_LOG	3		/* i.e., 8 bytes */
-#define	XFS_DIR2_DATA_ALIGN	(1 << XFS_DIR2_DATA_ALIGN_LOG)
-#define	XFS_DIR2_DATA_FREE_TAG	0xffff
-#define	XFS_DIR2_DATA_FD_COUNT	3
-
-/*
- * Directory address space divided into sections,
- * spaces separated by 32GB.
- */
-#define	XFS_DIR2_SPACE_SIZE	(1ULL << (32 + XFS_DIR2_DATA_ALIGN_LOG))
-#define	XFS_DIR2_DATA_SPACE	0
-#define	XFS_DIR2_DATA_OFFSET	(XFS_DIR2_DATA_SPACE * XFS_DIR2_SPACE_SIZE)
-#define	XFS_DIR2_DATA_FIRSTDB(mp)	\
-	xfs_dir2_byte_to_db(mp, XFS_DIR2_DATA_OFFSET)
-
-/*
- * Describe a free area in the data block.
- *
- * The freespace will be formatted as a xfs_dir2_data_unused_t.
- */
-typedef struct xfs_dir2_data_free {
-	__be16			offset;		/* start of freespace */
-	__be16			length;		/* length of freespace */
-} xfs_dir2_data_free_t;
-
-/*
- * Header for the data blocks.
- *
- * The code knows that XFS_DIR2_DATA_FD_COUNT is 3.
- */
-typedef struct xfs_dir2_data_hdr {
-	__be32			magic;		/* XFS_DIR2_DATA_MAGIC or */
-						/* XFS_DIR2_BLOCK_MAGIC */
-	xfs_dir2_data_free_t	bestfree[XFS_DIR2_DATA_FD_COUNT];
-} xfs_dir2_data_hdr_t;
-
-/*
- * define a structure for all the verification fields we are adding to the
- * directory block structures. This will be used in several structures.
- * The magic number must be the first entry to align with all the dir2
- * structures so we determine how to decode them just by the magic number.
- */
-struct xfs_dir3_blk_hdr {
-	__be32			magic;	/* magic number */
-	__be32			crc;	/* CRC of block */
-	__be64			blkno;	/* first block of the buffer */
-	__be64			lsn;	/* sequence number of last write */
-	uuid_t			uuid;	/* filesystem we belong to */
-	__be64			owner;	/* inode that owns the block */
-};
-
-struct xfs_dir3_data_hdr {
-	struct xfs_dir3_blk_hdr	hdr;
-	xfs_dir2_data_free_t	best_free[XFS_DIR2_DATA_FD_COUNT];
-	__be32			pad;	/* 64 bit alignment */
-};
-
-#define XFS_DIR3_DATA_CRC_OFF  offsetof(struct xfs_dir3_data_hdr, hdr.crc)
-
-static inline struct xfs_dir2_data_free *
-xfs_dir3_data_bestfree_p(struct xfs_dir2_data_hdr *hdr)
-{
-	if (hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) ||
-	    hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC)) {
-		struct xfs_dir3_data_hdr *hdr3 = (struct xfs_dir3_data_hdr *)hdr;
-		return hdr3->best_free;
-	}
-	return hdr->bestfree;
-}
-
-/*
- * Active entry in a data block.
- *
- * Aligned to 8 bytes.  After the variable length name field there is a
- * 2 byte tag field, which can be accessed using xfs_dir3_data_entry_tag_p.
- *
- * For dir3 structures, there is file type field between the name and the tag.
- * This can only be manipulated by helper functions. It is packed hard against
- * the end of the name so any padding for rounding is between the file type and
- * the tag.
- */
-typedef struct xfs_dir2_data_entry {
-	__be64			inumber;	/* inode number */
-	__u8			namelen;	/* name length */
-	__u8			name[];		/* name bytes, no null */
-     /* __u8			filetype; */	/* type of inode we point to */
-     /*	__be16                  tag; */		/* starting offset of us */
-} xfs_dir2_data_entry_t;
-
-/*
- * Unused entry in a data block.
- *
- * Aligned to 8 bytes.  Tag appears as the last 2 bytes and must be accessed
- * using xfs_dir2_data_unused_tag_p.
- */
-typedef struct xfs_dir2_data_unused {
-	__be16			freetag;	/* XFS_DIR2_DATA_FREE_TAG */
-	__be16			length;		/* total free length */
-						/* variable offset */
-	__be16			tag;		/* starting offset of us */
-} xfs_dir2_data_unused_t;
-
-/*
- * Size of a data entry.
- */
-static inline int
-__xfs_dir3_data_entsize(
-	bool	ftype,
-	int	n)
-{
-	int	size = offsetof(struct xfs_dir2_data_entry, name[0]);
-
-	size += n;
-	size += sizeof(xfs_dir2_data_off_t);
-	if (ftype)
-		size += sizeof(__uint8_t);
-	return roundup(size, XFS_DIR2_DATA_ALIGN);
-}
-static inline int
-xfs_dir3_data_entsize(
-	struct xfs_mount	*mp,
-	int			n)
-{
-	bool ftype = xfs_sb_version_hasftype(&mp->m_sb) ? true : false;
-	return __xfs_dir3_data_entsize(ftype, n);
-}
-
-static inline __uint8_t
-xfs_dir3_dirent_get_ftype(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_data_entry *dep)
-{
-	if (xfs_sb_version_hasftype(&mp->m_sb)) {
-		__uint8_t	type = dep->name[dep->namelen];
-
-		ASSERT(type < XFS_DIR3_FT_MAX);
-		if (type < XFS_DIR3_FT_MAX)
-			return type;
-
-	}
-	return XFS_DIR3_FT_UNKNOWN;
-}
-
-static inline void
-xfs_dir3_dirent_put_ftype(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_data_entry *dep,
-	__uint8_t		type)
-{
-	ASSERT(type < XFS_DIR3_FT_MAX);
-	ASSERT(dep->namelen != 0);
-
-	if (xfs_sb_version_hasftype(&mp->m_sb))
-		dep->name[dep->namelen] = type;
-}
-
-/*
- * Pointer to an entry's tag word.
- */
-static inline __be16 *
-xfs_dir3_data_entry_tag_p(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_data_entry *dep)
-{
-	return (__be16 *)((char *)dep +
-		xfs_dir3_data_entsize(mp, dep->namelen) - sizeof(__be16));
-}
-
-/*
- * Pointer to a freespace's tag word.
- */
-static inline __be16 *
-xfs_dir2_data_unused_tag_p(struct xfs_dir2_data_unused *dup)
-{
-	return (__be16 *)((char *)dup +
-			be16_to_cpu(dup->length) - sizeof(__be16));
-}
-
-static inline size_t
-xfs_dir3_data_hdr_size(bool dir3)
-{
-	if (dir3)
-		return sizeof(struct xfs_dir3_data_hdr);
-	return sizeof(struct xfs_dir2_data_hdr);
-}
-
-static inline size_t
-xfs_dir3_data_entry_offset(struct xfs_dir2_data_hdr *hdr)
-{
-	bool dir3 = hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) ||
-		    hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC);
-	return xfs_dir3_data_hdr_size(dir3);
-}
-
-static inline struct xfs_dir2_data_entry *
-xfs_dir3_data_entry_p(struct xfs_dir2_data_hdr *hdr)
-{
-	return (struct xfs_dir2_data_entry *)
-		((char *)hdr + xfs_dir3_data_entry_offset(hdr));
-}
-
-static inline struct xfs_dir2_data_unused *
-xfs_dir3_data_unused_p(struct xfs_dir2_data_hdr *hdr)
-{
-	return (struct xfs_dir2_data_unused *)
-		((char *)hdr + xfs_dir3_data_entry_offset(hdr));
-}
-
-/*
- * Offsets of . and .. in data space (always block 0)
- *
- * XXX: there is scope for significant optimisation of the logic here. Right
- * now we are checking for "dir3 format" over and over again. Ideally we should
- * only do it once for each operation.
- */
-static inline xfs_dir2_data_aoff_t
-xfs_dir3_data_dot_offset(struct xfs_mount *mp)
-{
-	return xfs_dir3_data_hdr_size(xfs_sb_version_hascrc(&mp->m_sb));
-}
-
-static inline xfs_dir2_data_aoff_t
-xfs_dir3_data_dotdot_offset(struct xfs_mount *mp)
-{
-	return xfs_dir3_data_dot_offset(mp) +
-		xfs_dir3_data_entsize(mp, 1);
-}
-
-static inline xfs_dir2_data_aoff_t
-xfs_dir3_data_first_offset(struct xfs_mount *mp)
-{
-	return xfs_dir3_data_dotdot_offset(mp) +
-		xfs_dir3_data_entsize(mp, 2);
-}
-
-/*
- * location of . and .. in data space (always block 0)
- */
-static inline struct xfs_dir2_data_entry *
-xfs_dir3_data_dot_entry_p(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_data_hdr *hdr)
-{
-	return (struct xfs_dir2_data_entry *)
-		((char *)hdr + xfs_dir3_data_dot_offset(mp));
-}
-
-static inline struct xfs_dir2_data_entry *
-xfs_dir3_data_dotdot_entry_p(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_data_hdr *hdr)
-{
-	return (struct xfs_dir2_data_entry *)
-		((char *)hdr + xfs_dir3_data_dotdot_offset(mp));
-}
-
-static inline struct xfs_dir2_data_entry *
-xfs_dir3_data_first_entry_p(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_data_hdr *hdr)
-{
-	return (struct xfs_dir2_data_entry *)
-		((char *)hdr + xfs_dir3_data_first_offset(mp));
-}
-
-/*
- * Leaf block structures.
- *
- * A pure leaf block looks like the following drawing on disk:
- *
- *    +---------------------------+
- *    | xfs_dir2_leaf_hdr_t       |
- *    +---------------------------+
- *    | xfs_dir2_leaf_entry_t     |
- *    | xfs_dir2_leaf_entry_t     |
- *    | xfs_dir2_leaf_entry_t     |
- *    | xfs_dir2_leaf_entry_t     |
- *    | ...                       |
- *    +---------------------------+
- *    | xfs_dir2_data_off_t       |
- *    | xfs_dir2_data_off_t       |
- *    | xfs_dir2_data_off_t       |
- *    | ...                       |
- *    +---------------------------+
- *    | xfs_dir2_leaf_tail_t      |
- *    +---------------------------+
- *
- * The xfs_dir2_data_off_t members (bests) and tail are at the end of the block
- * for single-leaf (magic = XFS_DIR2_LEAF1_MAGIC) blocks only, but not present
- * for directories with separate leaf nodes and free space blocks
- * (magic = XFS_DIR2_LEAFN_MAGIC).
- *
- * As all the entries are variable size structures the accessors below should
- * be used to iterate over them.
- */
-
-/*
- * Offset of the leaf/node space.  First block in this space
- * is the btree root.
- */
-#define	XFS_DIR2_LEAF_SPACE	1
-#define	XFS_DIR2_LEAF_OFFSET	(XFS_DIR2_LEAF_SPACE * XFS_DIR2_SPACE_SIZE)
-#define	XFS_DIR2_LEAF_FIRSTDB(mp)	\
-	xfs_dir2_byte_to_db(mp, XFS_DIR2_LEAF_OFFSET)
-
-/*
- * Leaf block header.
- */
-typedef struct xfs_dir2_leaf_hdr {
-	xfs_da_blkinfo_t	info;		/* header for da routines */
-	__be16			count;		/* count of entries */
-	__be16			stale;		/* count of stale entries */
-} xfs_dir2_leaf_hdr_t;
-
-struct xfs_dir3_leaf_hdr {
-	struct xfs_da3_blkinfo	info;		/* header for da routines */
-	__be16			count;		/* count of entries */
-	__be16			stale;		/* count of stale entries */
-	__be32			pad;		/* 64 bit alignment */
-};
-
-struct xfs_dir3_icleaf_hdr {
-	__uint32_t		forw;
-	__uint32_t		back;
-	__uint16_t		magic;
-	__uint16_t		count;
-	__uint16_t		stale;
-};
-
-/*
- * Leaf block entry.
- */
-typedef struct xfs_dir2_leaf_entry {
-	__be32			hashval;	/* hash value of name */
-	__be32			address;	/* address of data entry */
-} xfs_dir2_leaf_entry_t;
-
-/*
- * Leaf block tail.
- */
-typedef struct xfs_dir2_leaf_tail {
-	__be32			bestcount;
-} xfs_dir2_leaf_tail_t;
-
-/*
- * Leaf block.
- */
-typedef struct xfs_dir2_leaf {
-	xfs_dir2_leaf_hdr_t	hdr;			/* leaf header */
-	xfs_dir2_leaf_entry_t	__ents[];		/* entries */
-} xfs_dir2_leaf_t;
-
-struct xfs_dir3_leaf {
-	struct xfs_dir3_leaf_hdr	hdr;		/* leaf header */
-	struct xfs_dir2_leaf_entry	__ents[];	/* entries */
-};
-
-#define XFS_DIR3_LEAF_CRC_OFF  offsetof(struct xfs_dir3_leaf_hdr, info.crc)
-
-extern void xfs_dir3_leaf_hdr_from_disk(struct xfs_dir3_icleaf_hdr *to,
-					struct xfs_dir2_leaf *from);
-
-static inline int
-xfs_dir3_leaf_hdr_size(struct xfs_dir2_leaf *lp)
-{
-	if (lp->hdr.info.magic == cpu_to_be16(XFS_DIR3_LEAF1_MAGIC) ||
-	    lp->hdr.info.magic == cpu_to_be16(XFS_DIR3_LEAFN_MAGIC))
-		return sizeof(struct xfs_dir3_leaf_hdr);
-	return sizeof(struct xfs_dir2_leaf_hdr);
-}
-
-static inline int
-xfs_dir3_max_leaf_ents(struct xfs_mount *mp, struct xfs_dir2_leaf *lp)
-{
-	return (mp->m_dirblksize - xfs_dir3_leaf_hdr_size(lp)) /
-		(uint)sizeof(struct xfs_dir2_leaf_entry);
-}
-
-/*
- * Get address of the bestcount field in the single-leaf block.
- */
-static inline struct xfs_dir2_leaf_entry *
-xfs_dir3_leaf_ents_p(struct xfs_dir2_leaf *lp)
-{
-	if (lp->hdr.info.magic == cpu_to_be16(XFS_DIR3_LEAF1_MAGIC) ||
-	    lp->hdr.info.magic == cpu_to_be16(XFS_DIR3_LEAFN_MAGIC)) {
-		struct xfs_dir3_leaf *lp3 = (struct xfs_dir3_leaf *)lp;
-		return lp3->__ents;
-	}
-	return lp->__ents;
-}
-
-/*
- * Get address of the bestcount field in the single-leaf block.
- */
-static inline struct xfs_dir2_leaf_tail *
-xfs_dir2_leaf_tail_p(struct xfs_mount *mp, struct xfs_dir2_leaf *lp)
-{
-	return (struct xfs_dir2_leaf_tail *)
-		((char *)lp + mp->m_dirblksize -
-		  sizeof(struct xfs_dir2_leaf_tail));
-}
-
-/*
- * Get address of the bests array in the single-leaf block.
- */
-static inline __be16 *
-xfs_dir2_leaf_bests_p(struct xfs_dir2_leaf_tail *ltp)
-{
-	return (__be16 *)ltp - be32_to_cpu(ltp->bestcount);
-}
-
-/*
- * DB blocks here are logical directory block numbers, not filesystem blocks.
- */
-
-/*
- * Convert dataptr to byte in file space
- */
-static inline xfs_dir2_off_t
-xfs_dir2_dataptr_to_byte(struct xfs_mount *mp, xfs_dir2_dataptr_t dp)
-{
-	return (xfs_dir2_off_t)dp << XFS_DIR2_DATA_ALIGN_LOG;
-}
-
-/*
- * Convert byte in file space to dataptr.  It had better be aligned.
- */
-static inline xfs_dir2_dataptr_t
-xfs_dir2_byte_to_dataptr(struct xfs_mount *mp, xfs_dir2_off_t by)
-{
-	return (xfs_dir2_dataptr_t)(by >> XFS_DIR2_DATA_ALIGN_LOG);
-}
-
-/*
- * Convert byte in space to (DB) block
- */
-static inline xfs_dir2_db_t
-xfs_dir2_byte_to_db(struct xfs_mount *mp, xfs_dir2_off_t by)
-{
-	return (xfs_dir2_db_t)
-		(by >> (mp->m_sb.sb_blocklog + mp->m_sb.sb_dirblklog));
-}
-
-/*
- * Convert dataptr to a block number
- */
-static inline xfs_dir2_db_t
-xfs_dir2_dataptr_to_db(struct xfs_mount *mp, xfs_dir2_dataptr_t dp)
-{
-	return xfs_dir2_byte_to_db(mp, xfs_dir2_dataptr_to_byte(mp, dp));
-}
-
-/*
- * Convert byte in space to offset in a block
- */
-static inline xfs_dir2_data_aoff_t
-xfs_dir2_byte_to_off(struct xfs_mount *mp, xfs_dir2_off_t by)
-{
-	return (xfs_dir2_data_aoff_t)(by &
-		((1 << (mp->m_sb.sb_blocklog + mp->m_sb.sb_dirblklog)) - 1));
-}
-
-/*
- * Convert dataptr to a byte offset in a block
- */
-static inline xfs_dir2_data_aoff_t
-xfs_dir2_dataptr_to_off(struct xfs_mount *mp, xfs_dir2_dataptr_t dp)
-{
-	return xfs_dir2_byte_to_off(mp, xfs_dir2_dataptr_to_byte(mp, dp));
-}
-
-/*
- * Convert block and offset to byte in space
- */
-static inline xfs_dir2_off_t
-xfs_dir2_db_off_to_byte(struct xfs_mount *mp, xfs_dir2_db_t db,
-			xfs_dir2_data_aoff_t o)
-{
-	return ((xfs_dir2_off_t)db <<
-		(mp->m_sb.sb_blocklog + mp->m_sb.sb_dirblklog)) + o;
-}
-
-/*
- * Convert block (DB) to block (dablk)
- */
-static inline xfs_dablk_t
-xfs_dir2_db_to_da(struct xfs_mount *mp, xfs_dir2_db_t db)
-{
-	return (xfs_dablk_t)(db << mp->m_sb.sb_dirblklog);
-}
-
-/*
- * Convert byte in space to (DA) block
- */
-static inline xfs_dablk_t
-xfs_dir2_byte_to_da(struct xfs_mount *mp, xfs_dir2_off_t by)
-{
-	return xfs_dir2_db_to_da(mp, xfs_dir2_byte_to_db(mp, by));
-}
-
-/*
- * Convert block and offset to dataptr
- */
-static inline xfs_dir2_dataptr_t
-xfs_dir2_db_off_to_dataptr(struct xfs_mount *mp, xfs_dir2_db_t db,
-			   xfs_dir2_data_aoff_t o)
-{
-	return xfs_dir2_byte_to_dataptr(mp, xfs_dir2_db_off_to_byte(mp, db, o));
-}
-
-/*
- * Convert block (dablk) to block (DB)
- */
-static inline xfs_dir2_db_t
-xfs_dir2_da_to_db(struct xfs_mount *mp, xfs_dablk_t da)
-{
-	return (xfs_dir2_db_t)(da >> mp->m_sb.sb_dirblklog);
-}
-
-/*
- * Convert block (dablk) to byte offset in space
- */
-static inline xfs_dir2_off_t
-xfs_dir2_da_to_byte(struct xfs_mount *mp, xfs_dablk_t da)
-{
-	return xfs_dir2_db_off_to_byte(mp, xfs_dir2_da_to_db(mp, da), 0);
-}
-
-/*
- * Free space block defintions for the node format.
- */
-
-/*
- * Offset of the freespace index.
- */
-#define	XFS_DIR2_FREE_SPACE	2
-#define	XFS_DIR2_FREE_OFFSET	(XFS_DIR2_FREE_SPACE * XFS_DIR2_SPACE_SIZE)
-#define	XFS_DIR2_FREE_FIRSTDB(mp)	\
-	xfs_dir2_byte_to_db(mp, XFS_DIR2_FREE_OFFSET)
-
-typedef	struct xfs_dir2_free_hdr {
-	__be32			magic;		/* XFS_DIR2_FREE_MAGIC */
-	__be32			firstdb;	/* db of first entry */
-	__be32			nvalid;		/* count of valid entries */
-	__be32			nused;		/* count of used entries */
-} xfs_dir2_free_hdr_t;
-
-typedef struct xfs_dir2_free {
-	xfs_dir2_free_hdr_t	hdr;		/* block header */
-	__be16			bests[];	/* best free counts */
-						/* unused entries are -1 */
-} xfs_dir2_free_t;
-
-struct xfs_dir3_free_hdr {
-	struct xfs_dir3_blk_hdr	hdr;
-	__be32			firstdb;	/* db of first entry */
-	__be32			nvalid;		/* count of valid entries */
-	__be32			nused;		/* count of used entries */
-	__be32			pad;		/* 64 bit alignment */
-};
-
-struct xfs_dir3_free {
-	struct xfs_dir3_free_hdr hdr;
-	__be16			bests[];	/* best free counts */
-						/* unused entries are -1 */
-};
-
-#define XFS_DIR3_FREE_CRC_OFF  offsetof(struct xfs_dir3_free, hdr.hdr.crc)
-
-/*
- * In core version of the free block header, abstracted away from on-disk format
- * differences. Use this in the code, and convert to/from the disk version using
- * xfs_dir3_free_hdr_from_disk/xfs_dir3_free_hdr_to_disk.
- */
-struct xfs_dir3_icfree_hdr {
-	__uint32_t	magic;
-	__uint32_t	firstdb;
-	__uint32_t	nvalid;
-	__uint32_t	nused;
-
-};
-
-void xfs_dir3_free_hdr_from_disk(struct xfs_dir3_icfree_hdr *to,
-				 struct xfs_dir2_free *from);
-
-static inline int
-xfs_dir3_free_hdr_size(struct xfs_mount *mp)
-{
-	if (xfs_sb_version_hascrc(&mp->m_sb))
-		return sizeof(struct xfs_dir3_free_hdr);
-	return sizeof(struct xfs_dir2_free_hdr);
-}
-
-static inline int
-xfs_dir3_free_max_bests(struct xfs_mount *mp)
-{
-	return (mp->m_dirblksize - xfs_dir3_free_hdr_size(mp)) /
-		sizeof(xfs_dir2_data_off_t);
-}
-
-static inline __be16 *
-xfs_dir3_free_bests_p(struct xfs_mount *mp, struct xfs_dir2_free *free)
-{
-	return (__be16 *)((char *)free + xfs_dir3_free_hdr_size(mp));
-}
-
-/*
- * Convert data space db to the corresponding free db.
- */
-static inline xfs_dir2_db_t
-xfs_dir2_db_to_fdb(struct xfs_mount *mp, xfs_dir2_db_t db)
-{
-	return XFS_DIR2_FREE_FIRSTDB(mp) + db / xfs_dir3_free_max_bests(mp);
-}
-
-/*
- * Convert data space db to the corresponding index in a free db.
- */
-static inline int
-xfs_dir2_db_to_fdindex(struct xfs_mount *mp, xfs_dir2_db_t db)
-{
-	return db % xfs_dir3_free_max_bests(mp);
-}
-
-/*
- * Single block format.
- *
- * The single block format looks like the following drawing on disk:
- *
- *    +-------------------------------------------------+
- *    | xfs_dir2_data_hdr_t                             |
- *    +-------------------------------------------------+
- *    | xfs_dir2_data_entry_t OR xfs_dir2_data_unused_t |
- *    | xfs_dir2_data_entry_t OR xfs_dir2_data_unused_t |
- *    | xfs_dir2_data_entry_t OR xfs_dir2_data_unused_t :
- *    | ...                                             |
- *    +-------------------------------------------------+
- *    | unused space                                    |
- *    +-------------------------------------------------+
- *    | ...                                             |
- *    | xfs_dir2_leaf_entry_t                           |
- *    | xfs_dir2_leaf_entry_t                           |
- *    +-------------------------------------------------+
- *    | xfs_dir2_block_tail_t                           |
- *    +-------------------------------------------------+
- *
- * As all the entries are variable size structures the accessors below should
- * be used to iterate over them.
- */
-
-typedef struct xfs_dir2_block_tail {
-	__be32		count;			/* count of leaf entries */
-	__be32		stale;			/* count of stale lf entries */
-} xfs_dir2_block_tail_t;
-
-/*
- * Pointer to the leaf header embedded in a data block (1-block format)
- */
-static inline struct xfs_dir2_block_tail *
-xfs_dir2_block_tail_p(struct xfs_mount *mp, struct xfs_dir2_data_hdr *hdr)
-{
-	return ((struct xfs_dir2_block_tail *)
-		((char *)hdr + mp->m_dirblksize)) - 1;
-}
-
-/*
- * Pointer to the leaf entries embedded in a data block (1-block format)
- */
-static inline struct xfs_dir2_leaf_entry *
-xfs_dir2_block_leaf_p(struct xfs_dir2_block_tail *btp)
-{
-	return ((struct xfs_dir2_leaf_entry *)btp) - be32_to_cpu(btp->count);
-}
-
-#endif /* __XFS_DIR2_FORMAT_H__ */
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
index 1021c8356d08..d5937dab8f56 100644
--- a/fs/xfs/xfs_dir2_leaf.c
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -25,12 +25,12 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_bmap.h"
-#include "xfs_dir2_format.h"
 #include "xfs_dir2.h"
 #include "xfs_dir2_priv.h"
 #include "xfs_error.h"
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index 34df052683eb..85ff354db4ae 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -24,12 +24,12 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_bmap.h"
-#include "xfs_dir2_format.h"
 #include "xfs_dir2.h"
 #include "xfs_dir2_priv.h"
 #include "xfs_error.h"
diff --git a/fs/xfs/xfs_dir2_readdir.c b/fs/xfs/xfs_dir2_readdir.c
index 8f84153e98a8..6b1ffb37654a 100644
--- a/fs/xfs/xfs_dir2_readdir.c
+++ b/fs/xfs/xfs_dir2_readdir.c
@@ -25,11 +25,11 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
-#include "xfs_dir2_format.h"
 #include "xfs_dir2.h"
 #include "xfs_dir2_priv.h"
 #include "xfs_error.h"
diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c
index 3ef6d402084c..8d925963a1f2 100644
--- a/fs/xfs/xfs_dir2_sf.c
+++ b/fs/xfs/xfs_dir2_sf.c
@@ -23,13 +23,13 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_inode_item.h"
 #include "xfs_error.h"
-#include "xfs_dir2_format.h"
 #include "xfs_dir2.h"
 #include "xfs_dir2_priv.h"
 #include "xfs_trace.h"
diff --git a/fs/xfs/xfs_export.c b/fs/xfs/xfs_export.c
index 066df425c14f..96be1d63da9b 100644
--- a/fs/xfs/xfs_export.c
+++ b/fs/xfs/xfs_export.c
@@ -22,8 +22,7 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_da_btree.h"
-#include "xfs_dir2_format.h"
+#include "xfs_da_format.h"
 #include "xfs_dir2.h"
 #include "xfs_export.h"
 #include "xfs_bmap_btree.h"
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 57d95b2f8692..cc22aa1b7b3b 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -23,6 +23,8 @@
 #include "xfs_ag.h"
 #include "xfs_trans.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
+#include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc.h"
 #include "xfs_dinode.h"
@@ -31,8 +33,6 @@
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
 #include "xfs_error.h"
-#include "xfs_da_btree.h"
-#include "xfs_dir2_format.h"
 #include "xfs_dir2.h"
 #include "xfs_dir2_priv.h"
 #include "xfs_ioctl.h"
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 1aaef689794d..23d78885c743 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -29,8 +29,8 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_da_btree.h"
-#include "xfs_dir2_format.h"
 #include "xfs_dir2.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 24fe333b8c41..d046dc8c1925 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -27,6 +27,7 @@
 #include "xfs_alloc.h"
 #include "xfs_quota.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
@@ -42,7 +43,6 @@
 #include "xfs_icache.h"
 #include "xfs_symlink.h"
 #include "xfs_da_btree.h"
-#include "xfs_dir2_format.h"
 #include "xfs_dir2_priv.h"
 
 #include <linux/capability.h>
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index cbefc1235083..4d4f4a0bb5e4 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -26,6 +26,7 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_error.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
@@ -50,7 +51,6 @@
 /* Need all the magic numbers and buffer ops structures from these headers */
 #include "xfs_symlink.h"
 #include "xfs_da_btree.h"
-#include "xfs_dir2_format.h"
 #include "xfs_dir2.h"
 #include "xfs_attr_leaf.h"
 #include "xfs_attr_remote.h"
diff --git a/fs/xfs/xfs_log_rlimit.c b/fs/xfs/xfs_log_rlimit.c
index 0961310abe46..e598bb547dee 100644
--- a/fs/xfs/xfs_log_rlimit.c
+++ b/fs/xfs/xfs_log_rlimit.c
@@ -23,6 +23,7 @@
 #include "xfs_ag.h"
 #include "xfs_sb.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_trans_space.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_inode.h"
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 9515f96b4ab7..170e7294b7b0 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -27,8 +27,7 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_da_btree.h"
-#include "xfs_dir2_format.h"
+#include "xfs_da_format.h"
 #include "xfs_dir2.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
diff --git a/fs/xfs/xfs_sb.c b/fs/xfs/xfs_sb.c
index b4762279bb78..73b24e15cef7 100644
--- a/fs/xfs/xfs_sb.c
+++ b/fs/xfs/xfs_sb.c
@@ -26,8 +26,8 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_da_btree.h"
-#include "xfs_dir2_format.h"
 #include "xfs_dir2.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 4886b35b1ef1..a28eca47aa4c 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -27,6 +27,7 @@
 #include "xfs_alloc.h"
 #include "xfs_quota.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
@@ -45,7 +46,6 @@
 #include "xfs_trans_priv.h"
 #include "xfs_filestream.h"
 #include "xfs_da_btree.h"
-#include "xfs_dir2_format.h"
 #include "xfs_dir2.h"
 #include "xfs_extfree_item.h"
 #include "xfs_mru_cache.h"
diff --git a/fs/xfs/xfs_symlink.c b/fs/xfs/xfs_symlink.c
index cba781edb192..db32c504372c 100644
--- a/fs/xfs/xfs_symlink.c
+++ b/fs/xfs/xfs_symlink.c
@@ -26,8 +26,7 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_da_btree.h"
-#include "xfs_dir2_format.h"
+#include "xfs_da_format.h"
 #include "xfs_dir2.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_ialloc_btree.h"
diff --git a/fs/xfs/xfs_trace.c b/fs/xfs/xfs_trace.c
index 29705391c896..6ca992020326 100644
--- a/fs/xfs/xfs_trace.c
+++ b/fs/xfs/xfs_trace.c
@@ -23,13 +23,14 @@
 #include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
+#include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
-#include "xfs_mount.h"
 #include "xfs_da_btree.h"
 #include "xfs_ialloc.h"
 #include "xfs_itable.h"
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index 3693ce279143..06000a9647d5 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -26,7 +26,7 @@
 #include "xfs_ag.h"
 #include "xfs_mount.h"
 #include "xfs_error.h"
-#include "xfs_da_btree.h"
+#include "xfs_da_format.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
diff --git a/fs/xfs/xfs_trans_resv.c b/fs/xfs/xfs_trans_resv.c
index b5d952dbe6a4..cc8361255c8e 100644
--- a/fs/xfs/xfs_trans_resv.c
+++ b/fs/xfs/xfs_trans_resv.c
@@ -26,6 +26,7 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_error.h"
 #include "xfs_da_btree.h"
 #include "xfs_bmap_btree.h"
diff --git a/fs/xfs/xfs_xattr.c b/fs/xfs/xfs_xattr.c
index e01f35ea76ba..08047502683d 100644
--- a/fs/xfs/xfs_xattr.c
+++ b/fs/xfs/xfs_xattr.c
@@ -18,7 +18,12 @@
 
 #include "xfs.h"
 #include "xfs_log_format.h"
-#include "xfs_da_btree.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_mount.h"
+#include "xfs_da_format.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_inode.h"
 #include "xfs_attr.h"
-- 
cgit 


From 9aede1d81b12a95771db0e2f9196dd37e10aaf20 Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 15 Oct 2013 09:17:52 +1100
Subject: xfs: split dquot buffer operations out

Parts of userspace want to be able to read and modify dquot buffers
(e.g. xfs_db) so we need to split out the reading and writing of
these buffers so it is easy to shared code with libxfs in userspace.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/Makefile          |   1 +
 fs/xfs/xfs_dquot.c       | 117 +------------------
 fs/xfs/xfs_dquot_buf.c   | 288 +++++++++++++++++++++++++++++++++++++++++++++++
 fs/xfs/xfs_log_recover.c | 133 +---------------------
 fs/xfs/xfs_qm.c          |  22 +---
 fs/xfs/xfs_qm.h          |   2 -
 fs/xfs/xfs_quota.h       |   2 -
 fs/xfs/xfs_quota_defs.h  |   4 +
 8 files changed, 303 insertions(+), 266 deletions(-)
 create mode 100644 fs/xfs/xfs_dquot_buf.c

diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile
index 0719e4db93f2..08f11bbf56ae 100644
--- a/fs/xfs/Makefile
+++ b/fs/xfs/Makefile
@@ -72,6 +72,7 @@ xfs-y				+= xfs_alloc.o \
 				   xfs_dir2_leaf.o \
 				   xfs_dir2_node.o \
 				   xfs_dir2_sf.o \
+				   xfs_dquot_buf.o \
 				   xfs_ialloc.o \
 				   xfs_ialloc_btree.o \
 				   xfs_icreate_item.o \
diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c
index 8b1d2c0a9054..f85a893c2398 100644
--- a/fs/xfs/xfs_dquot.c
+++ b/fs/xfs/xfs_dquot.c
@@ -293,118 +293,6 @@ xfs_dquot_set_prealloc_limits(struct xfs_dquot *dqp)
 	dqp->q_low_space[XFS_QLOWSP_5_PCNT] = space * 5;
 }
 
-STATIC bool
-xfs_dquot_buf_verify_crc(
-	struct xfs_mount	*mp,
-	struct xfs_buf		*bp)
-{
-	struct xfs_dqblk	*d = (struct xfs_dqblk *)bp->b_addr;
-	int			ndquots;
-	int			i;
-
-	if (!xfs_sb_version_hascrc(&mp->m_sb))
-		return true;
-
-	/*
-	 * if we are in log recovery, the quota subsystem has not been
-	 * initialised so we have no quotainfo structure. In that case, we need
-	 * to manually calculate the number of dquots in the buffer.
-	 */
-	if (mp->m_quotainfo)
-		ndquots = mp->m_quotainfo->qi_dqperchunk;
-	else
-		ndquots = xfs_qm_calc_dquots_per_chunk(mp,
-					XFS_BB_TO_FSB(mp, bp->b_length));
-
-	for (i = 0; i < ndquots; i++, d++) {
-		if (!xfs_verify_cksum((char *)d, sizeof(struct xfs_dqblk),
-				 XFS_DQUOT_CRC_OFF))
-			return false;
-		if (!uuid_equal(&d->dd_uuid, &mp->m_sb.sb_uuid))
-			return false;
-	}
-	return true;
-}
-
-STATIC bool
-xfs_dquot_buf_verify(
-	struct xfs_mount	*mp,
-	struct xfs_buf		*bp)
-{
-	struct xfs_dqblk	*d = (struct xfs_dqblk *)bp->b_addr;
-	xfs_dqid_t		id = 0;
-	int			ndquots;
-	int			i;
-
-	/*
-	 * if we are in log recovery, the quota subsystem has not been
-	 * initialised so we have no quotainfo structure. In that case, we need
-	 * to manually calculate the number of dquots in the buffer.
-	 */
-	if (mp->m_quotainfo)
-		ndquots = mp->m_quotainfo->qi_dqperchunk;
-	else
-		ndquots = xfs_qm_calc_dquots_per_chunk(mp, bp->b_length);
-
-	/*
-	 * On the first read of the buffer, verify that each dquot is valid.
-	 * We don't know what the id of the dquot is supposed to be, just that
-	 * they should be increasing monotonically within the buffer. If the
-	 * first id is corrupt, then it will fail on the second dquot in the
-	 * buffer so corruptions could point to the wrong dquot in this case.
-	 */
-	for (i = 0; i < ndquots; i++) {
-		struct xfs_disk_dquot	*ddq;
-		int			error;
-
-		ddq = &d[i].dd_diskdq;
-
-		if (i == 0)
-			id = be32_to_cpu(ddq->d_id);
-
-		error = xfs_qm_dqcheck(mp, ddq, id + i, 0, XFS_QMOPT_DOWARN,
-				       "xfs_dquot_buf_verify");
-		if (error)
-			return false;
-	}
-	return true;
-}
-
-static void
-xfs_dquot_buf_read_verify(
-	struct xfs_buf	*bp)
-{
-	struct xfs_mount	*mp = bp->b_target->bt_mount;
-
-	if (!xfs_dquot_buf_verify_crc(mp, bp) || !xfs_dquot_buf_verify(mp, bp)) {
-		XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, bp->b_addr);
-		xfs_buf_ioerror(bp, EFSCORRUPTED);
-	}
-}
-
-/*
- * we don't calculate the CRC here as that is done when the dquot is flushed to
- * the buffer after the update is done. This ensures that the dquot in the
- * buffer always has an up-to-date CRC value.
- */
-void
-xfs_dquot_buf_write_verify(
-	struct xfs_buf	*bp)
-{
-	struct xfs_mount	*mp = bp->b_target->bt_mount;
-
-	if (!xfs_dquot_buf_verify(mp, bp)) {
-		XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, bp->b_addr);
-		xfs_buf_ioerror(bp, EFSCORRUPTED);
-		return;
-	}
-}
-
-const struct xfs_buf_ops xfs_dquot_buf_ops = {
-	.verify_read = xfs_dquot_buf_read_verify,
-	.verify_write = xfs_dquot_buf_write_verify,
-};
-
 /*
  * Allocate a block and fill it with dquots.
  * This is called when the bmapi finds a hole.
@@ -515,6 +403,7 @@ xfs_qm_dqalloc(
 
 	return (error);
 }
+
 STATIC int
 xfs_qm_dqrepair(
 	struct xfs_mount	*mp,
@@ -548,7 +437,7 @@ xfs_qm_dqrepair(
 	/* Do the actual repair of dquots in this buffer */
 	for (i = 0; i < mp->m_quotainfo->qi_dqperchunk; i++) {
 		ddq = &d[i].dd_diskdq;
-		error = xfs_qm_dqcheck(mp, ddq, firstid + i,
+		error = xfs_dqcheck(mp, ddq, firstid + i,
 				       dqp->dq_flags & XFS_DQ_ALLTYPES,
 				       XFS_QMOPT_DQREPAIR, "xfs_qm_dqrepair");
 		if (error) {
@@ -1134,7 +1023,7 @@ xfs_qm_dqflush(
 	/*
 	 * A simple sanity check in case we got a corrupted dquot..
 	 */
-	error = xfs_qm_dqcheck(mp, &dqp->q_core, be32_to_cpu(ddqp->d_id), 0,
+	error = xfs_dqcheck(mp, &dqp->q_core, be32_to_cpu(ddqp->d_id), 0,
 			   XFS_QMOPT_DOWARN, "dqflush (incore copy)");
 	if (error) {
 		xfs_buf_relse(bp);
diff --git a/fs/xfs/xfs_dquot_buf.c b/fs/xfs/xfs_dquot_buf.c
new file mode 100644
index 000000000000..ad2c18fbdb05
--- /dev/null
+++ b/fs/xfs/xfs_dquot_buf.c
@@ -0,0 +1,288 @@
+/*
+ * Copyright (c) 2000-2006 Silicon Graphics, Inc.
+ * Copyright (c) 2013 Red Hat, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_format.h"
+#include "xfs_bit.h"
+#include "xfs_log.h"
+#include "xfs_trans.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_mount.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_inode.h"
+#include "xfs_quota.h"
+#include "xfs_qm.h"
+#include "xfs_error.h"
+#include "xfs_cksum.h"
+#include "xfs_trace.h"
+
+int
+xfs_calc_dquots_per_chunk(
+	struct xfs_mount	*mp,
+	unsigned int		nbblks)	/* basic block units */
+{
+	unsigned int	ndquots;
+
+	ASSERT(nbblks > 0);
+	ndquots = BBTOB(nbblks);
+	do_div(ndquots, sizeof(xfs_dqblk_t));
+
+	return ndquots;
+}
+
+/*
+ * Do some primitive error checking on ondisk dquot data structures.
+ */
+int
+xfs_dqcheck(
+	struct xfs_mount *mp,
+	xfs_disk_dquot_t *ddq,
+	xfs_dqid_t	 id,
+	uint		 type,	  /* used only when IO_dorepair is true */
+	uint		 flags,
+	char		 *str)
+{
+	xfs_dqblk_t	 *d = (xfs_dqblk_t *)ddq;
+	int		errs = 0;
+
+	/*
+	 * We can encounter an uninitialized dquot buffer for 2 reasons:
+	 * 1. If we crash while deleting the quotainode(s), and those blks got
+	 *    used for user data. This is because we take the path of regular
+	 *    file deletion; however, the size field of quotainodes is never
+	 *    updated, so all the tricks that we play in itruncate_finish
+	 *    don't quite matter.
+	 *
+	 * 2. We don't play the quota buffers when there's a quotaoff logitem.
+	 *    But the allocation will be replayed so we'll end up with an
+	 *    uninitialized quota block.
+	 *
+	 * This is all fine; things are still consistent, and we haven't lost
+	 * any quota information. Just don't complain about bad dquot blks.
+	 */
+	if (ddq->d_magic != cpu_to_be16(XFS_DQUOT_MAGIC)) {
+		if (flags & XFS_QMOPT_DOWARN)
+			xfs_alert(mp,
+			"%s : XFS dquot ID 0x%x, magic 0x%x != 0x%x",
+			str, id, be16_to_cpu(ddq->d_magic), XFS_DQUOT_MAGIC);
+		errs++;
+	}
+	if (ddq->d_version != XFS_DQUOT_VERSION) {
+		if (flags & XFS_QMOPT_DOWARN)
+			xfs_alert(mp,
+			"%s : XFS dquot ID 0x%x, version 0x%x != 0x%x",
+			str, id, ddq->d_version, XFS_DQUOT_VERSION);
+		errs++;
+	}
+
+	if (ddq->d_flags != XFS_DQ_USER &&
+	    ddq->d_flags != XFS_DQ_PROJ &&
+	    ddq->d_flags != XFS_DQ_GROUP) {
+		if (flags & XFS_QMOPT_DOWARN)
+			xfs_alert(mp,
+			"%s : XFS dquot ID 0x%x, unknown flags 0x%x",
+			str, id, ddq->d_flags);
+		errs++;
+	}
+
+	if (id != -1 && id != be32_to_cpu(ddq->d_id)) {
+		if (flags & XFS_QMOPT_DOWARN)
+			xfs_alert(mp,
+			"%s : ondisk-dquot 0x%p, ID mismatch: "
+			"0x%x expected, found id 0x%x",
+			str, ddq, id, be32_to_cpu(ddq->d_id));
+		errs++;
+	}
+
+	if (!errs && ddq->d_id) {
+		if (ddq->d_blk_softlimit &&
+		    be64_to_cpu(ddq->d_bcount) >
+				be64_to_cpu(ddq->d_blk_softlimit)) {
+			if (!ddq->d_btimer) {
+				if (flags & XFS_QMOPT_DOWARN)
+					xfs_alert(mp,
+			"%s : Dquot ID 0x%x (0x%p) BLK TIMER NOT STARTED",
+					str, (int)be32_to_cpu(ddq->d_id), ddq);
+				errs++;
+			}
+		}
+		if (ddq->d_ino_softlimit &&
+		    be64_to_cpu(ddq->d_icount) >
+				be64_to_cpu(ddq->d_ino_softlimit)) {
+			if (!ddq->d_itimer) {
+				if (flags & XFS_QMOPT_DOWARN)
+					xfs_alert(mp,
+			"%s : Dquot ID 0x%x (0x%p) INODE TIMER NOT STARTED",
+					str, (int)be32_to_cpu(ddq->d_id), ddq);
+				errs++;
+			}
+		}
+		if (ddq->d_rtb_softlimit &&
+		    be64_to_cpu(ddq->d_rtbcount) >
+				be64_to_cpu(ddq->d_rtb_softlimit)) {
+			if (!ddq->d_rtbtimer) {
+				if (flags & XFS_QMOPT_DOWARN)
+					xfs_alert(mp,
+			"%s : Dquot ID 0x%x (0x%p) RTBLK TIMER NOT STARTED",
+					str, (int)be32_to_cpu(ddq->d_id), ddq);
+				errs++;
+			}
+		}
+	}
+
+	if (!errs || !(flags & XFS_QMOPT_DQREPAIR))
+		return errs;
+
+	if (flags & XFS_QMOPT_DOWARN)
+		xfs_notice(mp, "Re-initializing dquot ID 0x%x", id);
+
+	/*
+	 * Typically, a repair is only requested by quotacheck.
+	 */
+	ASSERT(id != -1);
+	ASSERT(flags & XFS_QMOPT_DQREPAIR);
+	memset(d, 0, sizeof(xfs_dqblk_t));
+
+	d->dd_diskdq.d_magic = cpu_to_be16(XFS_DQUOT_MAGIC);
+	d->dd_diskdq.d_version = XFS_DQUOT_VERSION;
+	d->dd_diskdq.d_flags = type;
+	d->dd_diskdq.d_id = cpu_to_be32(id);
+
+	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+		uuid_copy(&d->dd_uuid, &mp->m_sb.sb_uuid);
+		xfs_update_cksum((char *)d, sizeof(struct xfs_dqblk),
+				 XFS_DQUOT_CRC_OFF);
+	}
+
+	return errs;
+}
+
+STATIC bool
+xfs_dquot_buf_verify_crc(
+	struct xfs_mount	*mp,
+	struct xfs_buf		*bp)
+{
+	struct xfs_dqblk	*d = (struct xfs_dqblk *)bp->b_addr;
+	int			ndquots;
+	int			i;
+
+	if (!xfs_sb_version_hascrc(&mp->m_sb))
+		return true;
+
+	/*
+	 * if we are in log recovery, the quota subsystem has not been
+	 * initialised so we have no quotainfo structure. In that case, we need
+	 * to manually calculate the number of dquots in the buffer.
+	 */
+	if (mp->m_quotainfo)
+		ndquots = mp->m_quotainfo->qi_dqperchunk;
+	else
+		ndquots = xfs_calc_dquots_per_chunk(mp,
+					XFS_BB_TO_FSB(mp, bp->b_length));
+
+	for (i = 0; i < ndquots; i++, d++) {
+		if (!xfs_verify_cksum((char *)d, sizeof(struct xfs_dqblk),
+				 XFS_DQUOT_CRC_OFF))
+			return false;
+		if (!uuid_equal(&d->dd_uuid, &mp->m_sb.sb_uuid))
+			return false;
+	}
+	return true;
+}
+
+STATIC bool
+xfs_dquot_buf_verify(
+	struct xfs_mount	*mp,
+	struct xfs_buf		*bp)
+{
+	struct xfs_dqblk	*d = (struct xfs_dqblk *)bp->b_addr;
+	xfs_dqid_t		id = 0;
+	int			ndquots;
+	int			i;
+
+	/*
+	 * if we are in log recovery, the quota subsystem has not been
+	 * initialised so we have no quotainfo structure. In that case, we need
+	 * to manually calculate the number of dquots in the buffer.
+	 */
+	if (mp->m_quotainfo)
+		ndquots = mp->m_quotainfo->qi_dqperchunk;
+	else
+		ndquots = xfs_calc_dquots_per_chunk(mp, bp->b_length);
+
+	/*
+	 * On the first read of the buffer, verify that each dquot is valid.
+	 * We don't know what the id of the dquot is supposed to be, just that
+	 * they should be increasing monotonically within the buffer. If the
+	 * first id is corrupt, then it will fail on the second dquot in the
+	 * buffer so corruptions could point to the wrong dquot in this case.
+	 */
+	for (i = 0; i < ndquots; i++) {
+		struct xfs_disk_dquot	*ddq;
+		int			error;
+
+		ddq = &d[i].dd_diskdq;
+
+		if (i == 0)
+			id = be32_to_cpu(ddq->d_id);
+
+		error = xfs_dqcheck(mp, ddq, id + i, 0, XFS_QMOPT_DOWARN,
+				       "xfs_dquot_buf_verify");
+		if (error)
+			return false;
+	}
+	return true;
+}
+
+static void
+xfs_dquot_buf_read_verify(
+	struct xfs_buf	*bp)
+{
+	struct xfs_mount	*mp = bp->b_target->bt_mount;
+
+	if (!xfs_dquot_buf_verify_crc(mp, bp) || !xfs_dquot_buf_verify(mp, bp)) {
+		XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, bp->b_addr);
+		xfs_buf_ioerror(bp, EFSCORRUPTED);
+	}
+}
+
+/*
+ * we don't calculate the CRC here as that is done when the dquot is flushed to
+ * the buffer after the update is done. This ensures that the dquot in the
+ * buffer always has an up-to-date CRC value.
+ */
+void
+xfs_dquot_buf_write_verify(
+	struct xfs_buf	*bp)
+{
+	struct xfs_mount	*mp = bp->b_target->bt_mount;
+
+	if (!xfs_dquot_buf_verify(mp, bp)) {
+		XFS_CORRUPTION_ERROR(__func__, XFS_ERRLEVEL_LOW, mp, bp->b_addr);
+		xfs_buf_ioerror(bp, EFSCORRUPTED);
+		return;
+	}
+}
+
+const struct xfs_buf_ops xfs_dquot_buf_ops = {
+	.verify_read = xfs_dquot_buf_read_verify,
+	.verify_write = xfs_dquot_buf_write_verify,
+};
+
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 4d4f4a0bb5e4..cb3277e07844 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -2363,7 +2363,7 @@ xlog_recover_do_reg_buffer(
 					item->ri_buf[i].i_len, __func__);
 				goto next;
 			}
-			error = xfs_qm_dqcheck(mp, item->ri_buf[i].i_addr,
+			error = xfs_dqcheck(mp, item->ri_buf[i].i_addr,
 					       -1, 0, XFS_QMOPT_DOWARN,
 					       "dquot_buf_recover");
 			if (error)
@@ -2394,133 +2394,6 @@ xlog_recover_do_reg_buffer(
 		xlog_recover_validate_buf_type(mp, bp, buf_f);
 }
 
-/*
- * Do some primitive error checking on ondisk dquot data structures.
- */
-int
-xfs_qm_dqcheck(
-	struct xfs_mount *mp,
-	xfs_disk_dquot_t *ddq,
-	xfs_dqid_t	 id,
-	uint		 type,	  /* used only when IO_dorepair is true */
-	uint		 flags,
-	char		 *str)
-{
-	xfs_dqblk_t	 *d = (xfs_dqblk_t *)ddq;
-	int		errs = 0;
-
-	/*
-	 * We can encounter an uninitialized dquot buffer for 2 reasons:
-	 * 1. If we crash while deleting the quotainode(s), and those blks got
-	 *    used for user data. This is because we take the path of regular
-	 *    file deletion; however, the size field of quotainodes is never
-	 *    updated, so all the tricks that we play in itruncate_finish
-	 *    don't quite matter.
-	 *
-	 * 2. We don't play the quota buffers when there's a quotaoff logitem.
-	 *    But the allocation will be replayed so we'll end up with an
-	 *    uninitialized quota block.
-	 *
-	 * This is all fine; things are still consistent, and we haven't lost
-	 * any quota information. Just don't complain about bad dquot blks.
-	 */
-	if (ddq->d_magic != cpu_to_be16(XFS_DQUOT_MAGIC)) {
-		if (flags & XFS_QMOPT_DOWARN)
-			xfs_alert(mp,
-			"%s : XFS dquot ID 0x%x, magic 0x%x != 0x%x",
-			str, id, be16_to_cpu(ddq->d_magic), XFS_DQUOT_MAGIC);
-		errs++;
-	}
-	if (ddq->d_version != XFS_DQUOT_VERSION) {
-		if (flags & XFS_QMOPT_DOWARN)
-			xfs_alert(mp,
-			"%s : XFS dquot ID 0x%x, version 0x%x != 0x%x",
-			str, id, ddq->d_version, XFS_DQUOT_VERSION);
-		errs++;
-	}
-
-	if (ddq->d_flags != XFS_DQ_USER &&
-	    ddq->d_flags != XFS_DQ_PROJ &&
-	    ddq->d_flags != XFS_DQ_GROUP) {
-		if (flags & XFS_QMOPT_DOWARN)
-			xfs_alert(mp,
-			"%s : XFS dquot ID 0x%x, unknown flags 0x%x",
-			str, id, ddq->d_flags);
-		errs++;
-	}
-
-	if (id != -1 && id != be32_to_cpu(ddq->d_id)) {
-		if (flags & XFS_QMOPT_DOWARN)
-			xfs_alert(mp,
-			"%s : ondisk-dquot 0x%p, ID mismatch: "
-			"0x%x expected, found id 0x%x",
-			str, ddq, id, be32_to_cpu(ddq->d_id));
-		errs++;
-	}
-
-	if (!errs && ddq->d_id) {
-		if (ddq->d_blk_softlimit &&
-		    be64_to_cpu(ddq->d_bcount) >
-				be64_to_cpu(ddq->d_blk_softlimit)) {
-			if (!ddq->d_btimer) {
-				if (flags & XFS_QMOPT_DOWARN)
-					xfs_alert(mp,
-			"%s : Dquot ID 0x%x (0x%p) BLK TIMER NOT STARTED",
-					str, (int)be32_to_cpu(ddq->d_id), ddq);
-				errs++;
-			}
-		}
-		if (ddq->d_ino_softlimit &&
-		    be64_to_cpu(ddq->d_icount) >
-				be64_to_cpu(ddq->d_ino_softlimit)) {
-			if (!ddq->d_itimer) {
-				if (flags & XFS_QMOPT_DOWARN)
-					xfs_alert(mp,
-			"%s : Dquot ID 0x%x (0x%p) INODE TIMER NOT STARTED",
-					str, (int)be32_to_cpu(ddq->d_id), ddq);
-				errs++;
-			}
-		}
-		if (ddq->d_rtb_softlimit &&
-		    be64_to_cpu(ddq->d_rtbcount) >
-				be64_to_cpu(ddq->d_rtb_softlimit)) {
-			if (!ddq->d_rtbtimer) {
-				if (flags & XFS_QMOPT_DOWARN)
-					xfs_alert(mp,
-			"%s : Dquot ID 0x%x (0x%p) RTBLK TIMER NOT STARTED",
-					str, (int)be32_to_cpu(ddq->d_id), ddq);
-				errs++;
-			}
-		}
-	}
-
-	if (!errs || !(flags & XFS_QMOPT_DQREPAIR))
-		return errs;
-
-	if (flags & XFS_QMOPT_DOWARN)
-		xfs_notice(mp, "Re-initializing dquot ID 0x%x", id);
-
-	/*
-	 * Typically, a repair is only requested by quotacheck.
-	 */
-	ASSERT(id != -1);
-	ASSERT(flags & XFS_QMOPT_DQREPAIR);
-	memset(d, 0, sizeof(xfs_dqblk_t));
-
-	d->dd_diskdq.d_magic = cpu_to_be16(XFS_DQUOT_MAGIC);
-	d->dd_diskdq.d_version = XFS_DQUOT_VERSION;
-	d->dd_diskdq.d_flags = type;
-	d->dd_diskdq.d_id = cpu_to_be32(id);
-
-	if (xfs_sb_version_hascrc(&mp->m_sb)) {
-		uuid_copy(&d->dd_uuid, &mp->m_sb.sb_uuid);
-		xfs_update_cksum((char *)d, sizeof(struct xfs_dqblk),
-				 XFS_DQUOT_CRC_OFF);
-	}
-
-	return errs;
-}
-
 /*
  * Perform a dquot buffer recovery.
  * Simple algorithm: if we have found a QUOTAOFF log item of the same type
@@ -3126,7 +2999,7 @@ xlog_recover_dquot_pass2(
 	 */
 	dq_f = item->ri_buf[0].i_addr;
 	ASSERT(dq_f);
-	error = xfs_qm_dqcheck(mp, recddq, dq_f->qlf_id, 0, XFS_QMOPT_DOWARN,
+	error = xfs_dqcheck(mp, recddq, dq_f->qlf_id, 0, XFS_QMOPT_DOWARN,
 			   "xlog_recover_dquot_pass2 (log copy)");
 	if (error)
 		return XFS_ERROR(EIO);
@@ -3146,7 +3019,7 @@ xlog_recover_dquot_pass2(
 	 * was among a chunk of dquots created earlier, and we did some
 	 * minimal initialization then.
 	 */
-	error = xfs_qm_dqcheck(mp, ddq, dq_f->qlf_id, 0, XFS_QMOPT_DOWARN,
+	error = xfs_dqcheck(mp, ddq, dq_f->qlf_id, 0, XFS_QMOPT_DOWARN,
 			   "xlog_recover_dquot_pass2");
 	if (error) {
 		xfs_buf_relse(bp);
diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
index dc2d4f7ad7c9..6dfb4e320498 100644
--- a/fs/xfs/xfs_qm.c
+++ b/fs/xfs/xfs_qm.c
@@ -665,20 +665,6 @@ xfs_qm_dqdetach(
 	}
 }
 
-int
-xfs_qm_calc_dquots_per_chunk(
-	struct xfs_mount	*mp,
-	unsigned int		nbblks)	/* basic block units */
-{
-	unsigned int	ndquots;
-
-	ASSERT(nbblks > 0);
-	ndquots = BBTOB(nbblks);
-	do_div(ndquots, sizeof(xfs_dqblk_t));
-
-	return ndquots;
-}
-
 struct xfs_qm_isolate {
 	struct list_head	buffers;
 	struct list_head	dispose;
@@ -859,7 +845,7 @@ xfs_qm_init_quotainfo(
 
 	/* Precalc some constants */
 	qinf->qi_dqchunklen = XFS_FSB_TO_BB(mp, XFS_DQUOT_CLUSTER_SIZE_FSB);
-	qinf->qi_dqperchunk = xfs_qm_calc_dquots_per_chunk(mp,
+	qinf->qi_dqperchunk = xfs_calc_dquots_per_chunk(mp,
 							qinf->qi_dqchunklen);
 
 	mp->m_qflags |= (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_CHKD);
@@ -1093,10 +1079,10 @@ xfs_qm_reset_dqcounts(
 		/*
 		 * Do a sanity check, and if needed, repair the dqblk. Don't
 		 * output any warnings because it's perfectly possible to
-		 * find uninitialised dquot blks. See comment in xfs_qm_dqcheck.
+		 * find uninitialised dquot blks. See comment in xfs_dqcheck.
 		 */
-		(void) xfs_qm_dqcheck(mp, ddq, id+j, type, XFS_QMOPT_DQREPAIR,
-				      "xfs_quotacheck");
+		xfs_dqcheck(mp, ddq, id+j, type, XFS_QMOPT_DQREPAIR,
+			    "xfs_quotacheck");
 		ddq->d_bcount = 0;
 		ddq->d_icount = 0;
 		ddq->d_rtbcount = 0;
diff --git a/fs/xfs/xfs_qm.h b/fs/xfs/xfs_qm.h
index 2b602df9c242..a788b66a5cb1 100644
--- a/fs/xfs/xfs_qm.h
+++ b/fs/xfs/xfs_qm.h
@@ -103,8 +103,6 @@ xfs_dq_to_quota_inode(struct xfs_dquot *dqp)
 	return NULL;
 }
 
-extern int	xfs_qm_calc_dquots_per_chunk(struct xfs_mount *mp,
-					     unsigned int nbblks);
 extern void	xfs_trans_mod_dquot(struct xfs_trans *,
 					struct xfs_dquot *, uint, long);
 extern int	xfs_trans_reserve_quota_bydquots(struct xfs_trans *,
diff --git a/fs/xfs/xfs_quota.h b/fs/xfs/xfs_quota.h
index 84661d4431fa..5376dd406ba2 100644
--- a/fs/xfs/xfs_quota.h
+++ b/fs/xfs/xfs_quota.h
@@ -150,8 +150,6 @@ static inline int xfs_trans_reserve_quota_bydquots(struct xfs_trans *tp,
 	xfs_trans_reserve_quota_bydquots(tp, mp, ud, gd, pd, nb, ni, \
 				f | XFS_QMOPT_RES_REGBLKS)
 
-extern int xfs_qm_dqcheck(struct xfs_mount *, xfs_disk_dquot_t *,
-				xfs_dqid_t, uint, uint, char *);
 extern int xfs_mount_reset_sbqflags(struct xfs_mount *);
 
 #endif	/* __XFS_QUOTA_H__ */
diff --git a/fs/xfs/xfs_quota_defs.h b/fs/xfs/xfs_quota_defs.h
index e6b0d6e1f4f2..b3b2b1065c0f 100644
--- a/fs/xfs/xfs_quota_defs.h
+++ b/fs/xfs/xfs_quota_defs.h
@@ -154,4 +154,8 @@ typedef __uint16_t	xfs_qwarncnt_t;
 		(XFS_QMOPT_UQUOTA | XFS_QMOPT_PQUOTA | XFS_QMOPT_GQUOTA)
 #define XFS_QMOPT_RESBLK_MASK	(XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_RES_RTBLKS)
 
+extern int xfs_dqcheck(struct xfs_mount *mp, xfs_disk_dquot_t *ddq,
+		       xfs_dqid_t id, uint type, uint flags, char *str);
+extern int xfs_calc_dquots_per_chunk(struct xfs_mount *mp, unsigned int nbblks);
+
 #endif	/* __XFS_QUOTA_H__ */
-- 
cgit 


From d420e5c810bce5debce0238021b410d0ef99cf08 Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 15 Oct 2013 09:17:53 +1100
Subject: xfs: remove unused transaction callback variables

We don't do callbacks at transaction commit time, no do we have any
infrastructure to set up or run such callbacks, so remove the
variables and typedefs for these operations. If we ever need to add
callbacks, we can reintroduce the variables at that time.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_trans.h | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index 09cf40b89e8c..71c835e9e810 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -85,18 +85,11 @@ struct xfs_item_ops {
 #define XFS_ITEM_LOCKED		2
 #define XFS_ITEM_FLUSHING	3
 
-/*
- * This is the type of function which can be given to xfs_trans_callback()
- * to be called upon the transaction's commit to disk.
- */
-typedef void (*xfs_trans_callback_t)(struct xfs_trans *, void *);
-
 /*
  * This is the structure maintained for every active transaction.
  */
 typedef struct xfs_trans {
 	unsigned int		t_magic;	/* magic number */
-	xfs_log_callback_t	t_logcb;	/* log callback struct */
 	unsigned int		t_type;		/* transaction type */
 	unsigned int		t_log_res;	/* amt of log space resvd */
 	unsigned int		t_log_count;	/* count for perm log res */
-- 
cgit 


From 1571ed0c45ccb0865cb454b2215d18cd27f72baf Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Mon, 7 Oct 2013 19:51:52 -0400
Subject: alpha: select ARCH_MIGHT_HAVE_PC_PARPORT

Architectures which support CONFIG_PARPORT_PC should select
ARCH_MIGHT_HAVE_PC_PARPORT.

Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: Richard Henderson <rth@twiddle.net>
CC: linux-alpha@vger.kernel.org
---
 arch/alpha/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 35a300d4a9fb..84803f88a169 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -1,6 +1,7 @@
 config ALPHA
 	bool
 	default y
+	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select HAVE_AOUT
 	select HAVE_IDE
 	select HAVE_OPROFILE
-- 
cgit 


From d7018848940211eb5876282f8efe08fe456e89b2 Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Mon, 7 Oct 2013 22:07:58 -0400
Subject: arm: select ARCH_MIGHT_HAVE_PC_PARPORT

Architectures which support CONFIG_PARPORT_PC should select
ARCH_MIGHT_HAVE_PC_PARPORT.

Signed-off-by: Mark Salter <msalter@redhat.com>
CC: Russell King <linux@arm.linux.org.uk>
CC: linux-arm-kernel@lists.infradead.org
---
 arch/arm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3f7714d8d2d2..7db8abe071f4 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -5,6 +5,7 @@ config ARM
 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 	select ARCH_HAVE_CUSTOM_GPIO_H
+	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select BUILDTIME_EXTABLE_SORT if MMU
 	select CLONE_BACKWARDS
-- 
cgit 


From 468bcf08fbbc6296b96f478b1422d0622c0fdc0d Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Mon, 7 Oct 2013 22:08:56 -0400
Subject: ia64: select ARCH_MIGHT_HAVE_PC_PARPORT

Architectures which support CONFIG_PARPORT_PC should select
ARCH_MIGHT_HAVE_PC_PARPORT.

Signed-off-by: Mark Salter <msalter@redhat.com>
CC: Tony Luck <tony.luck@intel.com>
CC: Fenghua Yu <fenghua.yu@intel.com>
CC: linux-ia64@vger.kernel.org
---
 arch/ia64/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 7740ab10a171..b10d61bc0f2a 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -6,6 +6,7 @@ menu "Processor type and features"
 
 config IA64
 	bool
+	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select PCI if (!IA64_HP_SIM)
 	select ACPI if (!IA64_HP_SIM)
 	select PM if (!IA64_HP_SIM)
-- 
cgit 


From 1a7f6be5c95f8475b0cb232eafa9367a5d2cbf43 Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Mon, 7 Oct 2013 22:10:21 -0400
Subject: m68k: select ARCH_MIGHT_HAVE_PC_PARPORT

Architectures which support CONFIG_PARPORT_PC should select
ARCH_MIGHT_HAVE_PC_PARPORT.

Signed-off-by: Mark Salter <msalter@redhat.com>
Acked by: Geert Uytterhoeven <geert@linux-m68k.org>
CC: linux-m68k@lists.linux-m68k.org
---
 arch/m68k/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 311a300d48cc..75f25a8e3001 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -1,6 +1,7 @@
 config M68K
 	bool
 	default y
+	select ARCH_MIGHT_HAVE_PC_PARPORT if ISA
 	select HAVE_IDE
 	select HAVE_AOUT if MMU
 	select HAVE_DEBUG_BUGVERBOSE
-- 
cgit 


From 355f65a391282f2aa9dfb0ce6414f99177435264 Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Mon, 7 Oct 2013 22:12:28 -0400
Subject: microblaze: select ARCH_MIGHT_HAVE_PC_PARPORT

Architectures which support CONFIG_PARPORT_PC should select
ARCH_MIGHT_HAVE_PC_PARPORT.

Signed-off-by: Mark Salter <msalter@redhat.com>
CC: Michal Simek <monstr@monstr.eu>
CC: microblaze-uclinux@itee.uq.edu.au
---
 arch/microblaze/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index b82f82b74319..8370114e78aa 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -1,5 +1,6 @@
 config MICROBLAZE
 	def_bool y
+	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select HAVE_MEMBLOCK
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_FUNCTION_TRACER
-- 
cgit 


From a862a4262f9900239389515f79c6c9dfc8de6080 Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Mon, 7 Oct 2013 22:13:33 -0400
Subject: mips: select ARCH_MIGHT_HAVE_PC_PARPORT

Architectures which support CONFIG_PARPORT_PC should select
ARCH_MIGHT_HAVE_PC_PARPORT.

Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
CC: linux-mips@linux-mips.org
---
 arch/mips/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index f75ab4a2f246..7861401f3b66 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1,6 +1,7 @@
 config MIPS
 	bool
 	default y
+	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select HAVE_CONTEXT_TRACKING
 	select HAVE_GENERIC_DMA_COHERENT
 	select HAVE_IDE
-- 
cgit 


From 4a24fb2f30c362ee63663a232266fd503bb9cdc2 Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Mon, 7 Oct 2013 22:14:01 -0400
Subject: parisc: select ARCH_MIGHT_HAVE_PC_PARPORT

Architectures which support CONFIG_PARPORT_PC should select
ARCH_MIGHT_HAVE_PC_PARPORT.

Signed-off-by: Mark Salter <msalter@redhat.com>
CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
CC: Helge Deller <deller@gmx.de>
CC: linux-parisc@vger.kernel.org
---
 arch/parisc/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index ad2ce8dab996..deb713c647f4 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -1,6 +1,7 @@
 config PARISC
 	def_bool y
 	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select HAVE_IDE
 	select HAVE_OPROFILE
 	select HAVE_FUNCTION_TRACER if 64BIT
-- 
cgit 


From b7e7c37b6e84bd1aec8085606fa3fb42b5cf5a66 Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Mon, 7 Oct 2013 22:15:32 -0400
Subject: powerpc: select ARCH_MIGHT_HAVE_PC_PARPORT

Architectures which support CONFIG_PARPORT_PC should select
ARCH_MIGHT_HAVE_PC_PARPORT.

Signed-off-by: Mark Salter <msalter@redhat.com>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Paul Mackerras <paulus@samba.org>
CC: linuxppc-dev@lists.ozlabs.org
---
 arch/powerpc/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 38f3b7e47ec5..fcc626cc577b 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -85,6 +85,7 @@ config GENERIC_HWEIGHT
 config PPC
 	bool
 	default y
+	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select BINFMT_ELF
 	select OF
 	select OF_EARLY_FLATTREE
-- 
cgit 


From 09d8dd9371aa38e7277f12059ca07503c39a291a Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Mon, 7 Oct 2013 22:15:58 -0400
Subject: sh: select ARCH_MIGHT_HAVE_PC_PARPORT

Architectures which support CONFIG_PARPORT_PC should select
ARCH_MIGHT_HAVE_PC_PARPORT.

Signed-off-by: Mark Salter <msalter@redhat.com>
CC: Paul Mundt <lethal@linux-sh.org>
CC: linux-sh@vger.kernel.org
---
 arch/sh/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 224f4bc9925e..f56d7f8b6f64 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -1,5 +1,6 @@
 config SUPERH
 	def_bool y
+	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select EXPERT
 	select CLKDEV_LOOKUP
 	select HAVE_IDE if HAS_IOPORT
-- 
cgit 


From ff649a6f9b526410e59d7694912499f17ae190c3 Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Mon, 7 Oct 2013 22:16:32 -0400
Subject: sparc: select ARCH_MIGHT_HAVE_PC_PARPORT

Architectures which support CONFIG_PARPORT_PC should select
ARCH_MIGHT_HAVE_PC_PARPORT.

Signed-off-by: Mark Salter <msalter@redhat.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: sparclinux@vger.kernel.org
---
 arch/sparc/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 2137ad667438..242200fbbbcf 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -12,6 +12,7 @@ config 64BIT
 config SPARC
 	bool
 	default y
+	select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
 	select OF
 	select OF_PROMTREE
 	select HAVE_IDE
-- 
cgit 


From e00ca5152b0cb9e1228a30b45c5037765b92a6f1 Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Mon, 7 Oct 2013 22:17:30 -0400
Subject: unicore32: select ARCH_MIGHT_HAVE_PC_PARPORT

Architectures which support CONFIG_PARPORT_PC should select
ARCH_MIGHT_HAVE_PC_PARPORT.

Signed-off-by: Mark Salter <msalter@redhat.com>
CC: Guan Xuetao <gxt@mprc.pku.edu.cn>
---
 arch/unicore32/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index 82cdd8906f3d..a7ba27b2752b 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -1,5 +1,6 @@
 config UNICORE32
 	def_bool y
+	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select HAVE_MEMBLOCK
 	select HAVE_GENERIC_DMA_COHERENT
 	select HAVE_DMA_ATTRS
-- 
cgit 


From 77fbbc81127d2a26e4e53e018987d6af13829298 Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Mon, 7 Oct 2013 22:18:07 -0400
Subject: x86: select ARCH_MIGHT_HAVE_PC_PARPORT

Architectures which support CONFIG_PARPORT_PC should select
ARCH_MIGHT_HAVE_PC_PARPORT.

Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: Ingo Molnar <mingo@redhat.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: "H. Peter Anvin" <hpa@zytor.com>
CC: x86@kernel.org
---
 arch/x86/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index e241a1930c98..5ed65706765d 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -22,6 +22,7 @@ config X86_64
 config X86
 	def_bool y
 	select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS
+	select ARCH_MIGHT_HAVE_PC_PARPORT
 	select HAVE_AOUT if X86_32
 	select HAVE_UNSTABLE_SCHED_CLOCK
 	select ARCH_SUPPORTS_NUMA_BALANCING
-- 
cgit 


From d90c3eb31535e0a1b7b5528ad2011e26f4b9a79a Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Mon, 7 Oct 2013 22:21:18 -0400
Subject: Kconfig cleanup (PARPORT_PC dependencies)

Remove messy dependencies from PARPORT_PC by having it depend on one
Kconfig symbol (ARCH_MIGHT_HAVE_PC_PARPORT) and having architectures
which need it, select ARCH_MIGHT_HAVE_PC_PARPORT in arch/*/Kconfig.
New architectures are unlikely to need PARPORT_PC, so this avoids
having an ever growing list of architectures to exclude. Those
architectures which do select ARCH_MIGHT_HAVE_PC_PARPORT in this
patch are the ones which have an asm/parport.h (or use the generic
version).

Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: Ingo Molnar <mingo@redhat.com>
CC: Richard Henderson <rth@twiddle.net>
CC: linux-alpha@vger.kernel.org
CC: Vineet Gupta <vgupta@synopsys.com>
CC: Russell King <linux@arm.linux.org.uk>
CC: linux-arm-kernel@lists.infradead.org
CC: Tony Luck <tony.luck@intel.com>
CC: Fenghua Yu <fenghua.yu@intel.com>
CC: linux-ia64@vger.kernel.org
CC: Geert Uytterhoeven <geert@linux-m68k.org>
CC: linux-m68k@lists.linux-m68k.org
CC: Michal Simek <monstr@monstr.eu>
CC: microblaze-uclinux@itee.uq.edu.au
CC: Ralf Baechle <ralf@linux-mips.org>
CC: linux-mips@linux-mips.org
CC: "James E.J. Bottomley" <jejb@parisc-linux.org>
CC: Helge Deller <deller@gmx.de>
CC: linux-parisc@vger.kernel.org
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Paul Mackerras <paulus@samba.org>
CC: linuxppc-dev@lists.ozlabs.org
CC: Paul Mundt <lethal@linux-sh.org>
CC: linux-sh@vger.kernel.org
CC: "David S. Miller" <davem@davemloft.net>
CC: sparclinux@vger.kernel.org
CC: Guan Xuetao <gxt@mprc.pku.edu.cn>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: "H. Peter Anvin" <hpa@zytor.com>
CC: x86@kernel.org
---
 drivers/parport/Kconfig | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/parport/Kconfig b/drivers/parport/Kconfig
index 70694ce38be2..f5366850af7a 100644
--- a/drivers/parport/Kconfig
+++ b/drivers/parport/Kconfig
@@ -31,13 +31,17 @@ menuconfig PARPORT
 
 	  If unsure, say Y.
 
+config ARCH_MIGHT_HAVE_PC_PARPORT
+	bool
+	help
+	  Select this config option from the architecture Kconfig if
+	  the architecture might have PC parallel port hardware.
+
 if PARPORT
 
 config PARPORT_PC
 	tristate "PC-style hardware"
-	depends on (!SPARC64 || PCI) && !SPARC32 && !M32R && !FRV && !S390 && \
-		(!M68K || ISA) && !MN10300 && !AVR32 && !BLACKFIN && \
-		!XTENSA && !CRIS && !H8300
+	depends on ARCH_MIGHT_HAVE_PC_PARPORT
 
 	---help---
 	  You should say Y here if you have a PC-style parallel port. All
-- 
cgit 


From 35b87f6c135b7ded8ab1a44e46d792f7688f3608 Mon Sep 17 00:00:00 2001
From: Christoph Paasch <christoph.paasch@uclouvain.be>
Date: Wed, 23 Oct 2013 12:49:21 -0700
Subject: net: Dereference pointer-value of sk_prot->memory_pressure

2e685cad57 (tcp_memcontrol: Kill struct tcp_memcontrol) falsly modified
the access to memory_pressure of sk->sk_prot->memory_pressure. The patch
did modify the memory_pressure-field of struct cg_proto, but not the one
of struct proto.

So, the access to sk_prot->memory_pressure should not be changed.

Acked-by: Eric Dumazet <edumazet@google.com>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/sock.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/net/sock.h b/include/net/sock.h
index c93542f92420..e3a18ff0c38b 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -1137,7 +1137,7 @@ static inline bool sk_under_memory_pressure(const struct sock *sk)
 	if (mem_cgroup_sockets_enabled && sk->sk_cgrp)
 		return !!sk->sk_cgrp->memory_pressure;
 
-	return !!sk->sk_prot->memory_pressure;
+	return !!*sk->sk_prot->memory_pressure;
 }
 
 static inline void sk_leave_memory_pressure(struct sock *sk)
-- 
cgit 


From 34d92d5315b64a3e5292b7e9511c1bb617227fb6 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Wed, 23 Oct 2013 08:44:50 +0200
Subject: net: always inline net_secret_init

Currently net_secret_init does not get inlined, so we always have a call
to net_secret_init even in the fast path.

Let's specify net_secret_init as __always_inline so we have the nop in
the fast-path without the call to net_secret_init and the unlikely path
at the epilogue of the function.

jump_labels handle the inlining correctly.

Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/secure_seq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/secure_seq.c b/net/core/secure_seq.c
index b02fd16b8942..90e8a8250255 100644
--- a/net/core/secure_seq.c
+++ b/net/core/secure_seq.c
@@ -15,7 +15,7 @@
 
 static u32 net_secret[NET_SECRET_SIZE] ____cacheline_aligned;
 
-static void net_secret_init(void)
+static __always_inline void net_secret_init(void)
 {
 	net_get_random_once(net_secret, sizeof(net_secret));
 }
-- 
cgit 


From 305a3388b5b3121aff6b10054136b40ca91ab35b Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Wed, 16 Oct 2013 02:29:58 +0400
Subject: sh_eth: add/use RMCR.RNC bit

Declare 'enum RMCR_BIT' containing the single member for the RMCR.RNC bit and
replace bare numbers in the driver by  this mnemonic.

Suggested-by: David Miller <davem@davemloft.net>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/renesas/sh_eth.c | 6 +++---
 drivers/net/ethernet/renesas/sh_eth.h | 3 +++
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index 7258366f7e0b..eaf11e47334f 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -483,7 +483,7 @@ static struct sh_eth_cpu_data sh7757_data = {
 	.register_type	= SH_ETH_REG_FAST_SH4,
 
 	.eesipr_value	= DMAC_M_RFRMER | DMAC_M_ECI | 0x003fffff,
-	.rmcr_value	= 0x00000001,
+	.rmcr_value	= RMCR_RNC,
 
 	.tx_check	= EESR_FTC | EESR_CND | EESR_DLC | EESR_CD | EESR_RTO,
 	.eesr_err_check	= EESR_TWB | EESR_TABT | EESR_RABT | EESR_RFE |
@@ -561,7 +561,7 @@ static struct sh_eth_cpu_data sh7757_data_giga = {
 			  EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE |
 			  EESR_TDE | EESR_ECI,
 	.fdr_value	= 0x0000072f,
-	.rmcr_value	= 0x00000001,
+	.rmcr_value	= RMCR_RNC,
 
 	.irq_flags	= IRQF_SHARED,
 	.apr		= 1,
@@ -689,7 +689,7 @@ static struct sh_eth_cpu_data r8a7740_data = {
 			  EESR_RFE | EESR_RDE | EESR_RFRMER | EESR_TFE |
 			  EESR_TDE | EESR_ECI,
 	.fdr_value	= 0x0000070f,
-	.rmcr_value	= 0x00000001,
+	.rmcr_value	= RMCR_RNC,
 
 	.apr		= 1,
 	.mpr		= 1,
diff --git a/drivers/net/ethernet/renesas/sh_eth.h b/drivers/net/ethernet/renesas/sh_eth.h
index a0db02c63b11..f32c1692d310 100644
--- a/drivers/net/ethernet/renesas/sh_eth.h
+++ b/drivers/net/ethernet/renesas/sh_eth.h
@@ -321,6 +321,9 @@ enum TD_STS_BIT {
 #define TD_TFP	(TD_TFP1|TD_TFP0)
 
 /* RMCR */
+enum RMCR_BIT {
+	RMCR_RNC = 0x00000001,
+};
 #define DEFAULT_RMCR_VALUE	0x00000000
 
 /* ECMR */
-- 
cgit 


From fecda03493646b53f53892fa3c38c75ba9310374 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Tue, 22 Oct 2013 18:34:56 +0200
Subject: net: sctp: fix ASCONF to allow non SCTP_ADDR_SRC addresses in ipv6

Commit 8a07eb0a50 ("sctp: Add ASCONF operation on the single-homed host")
implemented possible use of IPv4 addresses with non SCTP_ADDR_SRC state
as source address when sending ASCONF (ADD) packets, but IPv6 part for
that was not implemented in 8a07eb0a50. Therefore, as this is not restricted
to IPv4-only, fix this up to allow the same for IPv6 addresses in SCTP.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Michio Honda <micchie@sfc.wide.ad.jp>
Acked-by: Michio Honda <micchie@sfc.wide.ad.jp>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sctp/ipv6.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c
index e7b2d4fe2b6a..96a55910262c 100644
--- a/net/sctp/ipv6.c
+++ b/net/sctp/ipv6.c
@@ -279,7 +279,9 @@ static void sctp_v6_get_dst(struct sctp_transport *t, union sctp_addr *saddr,
 		sctp_v6_to_addr(&dst_saddr, &fl6->saddr, htons(bp->port));
 		rcu_read_lock();
 		list_for_each_entry_rcu(laddr, &bp->address_list, list) {
-			if (!laddr->valid || (laddr->state != SCTP_ADDR_SRC))
+			if (!laddr->valid || laddr->state == SCTP_ADDR_DEL ||
+			    (laddr->state != SCTP_ADDR_SRC &&
+			     !asoc->src_out_of_asoc_ok))
 				continue;
 
 			/* Do not compare against v4 addrs */
-- 
cgit 


From 3a93ac0bb666c149e0a43a83e060f3d4b793c6de Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 23 Oct 2013 16:06:54 +0900
Subject: net: sungem: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/sun/sungem.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/sun/sungem.c b/drivers/net/ethernet/sun/sungem.c
index a235bd9fd980..b5655b79bd3b 100644
--- a/drivers/net/ethernet/sun/sungem.c
+++ b/drivers/net/ethernet/sun/sungem.c
@@ -2806,8 +2806,6 @@ static void gem_remove_one(struct pci_dev *pdev)
 		iounmap(gp->regs);
 		pci_release_regions(pdev);
 		free_netdev(dev);
-
-		pci_set_drvdata(pdev, NULL);
 	}
 }
 
-- 
cgit 


From 0956eaff8f39882491836fc1f0e7929f49ae0344 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 23 Oct 2013 16:07:19 +0900
Subject: net: niu: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/sun/niu.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/sun/niu.c b/drivers/net/ethernet/sun/niu.c
index f28460ce24a7..388540fcb977 100644
--- a/drivers/net/ethernet/sun/niu.c
+++ b/drivers/net/ethernet/sun/niu.c
@@ -9875,7 +9875,6 @@ err_out_free_res:
 
 err_out_disable_pdev:
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 
 	return err;
 }
@@ -9900,7 +9899,6 @@ static void niu_pci_remove_one(struct pci_dev *pdev)
 		free_netdev(dev);
 		pci_release_regions(pdev);
 		pci_disable_device(pdev);
-		pci_set_drvdata(pdev, NULL);
 	}
 }
 
-- 
cgit 


From 89f45c70ee89a16932d01a97695d0094a8ee6a70 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 23 Oct 2013 16:07:51 +0900
Subject: net: tehuti: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/tehuti/tehuti.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/tehuti/tehuti.c b/drivers/net/ethernet/tehuti/tehuti.c
index 571452e786d5..dd0dd6279b4e 100644
--- a/drivers/net/ethernet/tehuti/tehuti.c
+++ b/drivers/net/ethernet/tehuti/tehuti.c
@@ -2447,7 +2447,6 @@ static void bdx_remove(struct pci_dev *pdev)
 	iounmap(nic->regs);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 	vfree(nic);
 
 	RET();
-- 
cgit 


From b921f9abdd7278656aad06e624d42ddc524d5838 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 23 Oct 2013 16:08:32 +0900
Subject: net: tlan: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/ti/tlan.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c
index 591437e59b90..62b19be5183d 100644
--- a/drivers/net/ethernet/ti/tlan.c
+++ b/drivers/net/ethernet/ti/tlan.c
@@ -319,7 +319,6 @@ static void tlan_remove_one(struct pci_dev *pdev)
 
 	free_netdev(dev);
 
-	pci_set_drvdata(pdev, NULL);
 	cancel_work_sync(&priv->tlan_tqueue);
 }
 
-- 
cgit 


From df5d3859bc29998f86bcbe3877440b59be1d89c8 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 23 Oct 2013 16:09:03 +0900
Subject: net: spider_net: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/toshiba/spider_net.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/toshiba/spider_net.c b/drivers/net/ethernet/toshiba/spider_net.c
index 5734480c1ecf..3f4a32e39d27 100644
--- a/drivers/net/ethernet/toshiba/spider_net.c
+++ b/drivers/net/ethernet/toshiba/spider_net.c
@@ -2478,7 +2478,6 @@ out_release_regions:
 	pci_release_regions(pdev);
 out_disable_dev:
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 	return NULL;
 }
 
-- 
cgit 


From 2a2ee993a20038db561d6e0ea34823865de4e229 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 23 Oct 2013 16:09:32 +0900
Subject: net: tc35815: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/toshiba/tc35815.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/toshiba/tc35815.c b/drivers/net/ethernet/toshiba/tc35815.c
index a971b9cca564..1322546d92ac 100644
--- a/drivers/net/ethernet/toshiba/tc35815.c
+++ b/drivers/net/ethernet/toshiba/tc35815.c
@@ -887,7 +887,6 @@ static void tc35815_remove_one(struct pci_dev *pdev)
 	mdiobus_free(lp->mii_bus);
 	unregister_netdev(dev);
 	free_netdev(dev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 static int
-- 
cgit 


From a3b8a16b802469884c1597414911c8b4d2117674 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Wed, 23 Oct 2013 16:09:56 +0900
Subject: net: via-rhine: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/via/via-rhine.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c
index bdf697b184ae..4a7293ed95e9 100644
--- a/drivers/net/ethernet/via/via-rhine.c
+++ b/drivers/net/ethernet/via/via-rhine.c
@@ -2292,7 +2292,6 @@ static void rhine_remove_one(struct pci_dev *pdev)
 
 	free_netdev(dev);
 	pci_disable_device(pdev);
-	pci_set_drvdata(pdev, NULL);
 }
 
 static void rhine_shutdown (struct pci_dev *pdev)
-- 
cgit 


From e7b519ba55aeb675daee1d304e80d752c385f7f0 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Wed, 23 Oct 2013 11:06:55 +0200
Subject: ipv4: initialize ip4_frags hash secret as late as possible

Defer the generation of the first hash secret for the ipv4 fragmentation
cache as late as possible.

ip4_frags.rnd gets initial seeded by inet_frags_init and regulary
reseeded by inet_frag_secret_rebuild. Either we call ipqhashfn directly
from ip_fragment.c in which case we initialize the secret directly.

If we first get called by inet_frag_secret_rebuild we install a new secret
by a manual call to get_random_bytes. This secret will be overwritten
as soon as the first call to ipqhashfn happens. This is safe because we
won't race while publishing the new secrets with anyone else.

Cc: Eric Dumazet <edumazet@google.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/ip_fragment.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index b66910aaef4d..2481993a4970 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -106,6 +106,7 @@ struct ip4_create_arg {
 
 static unsigned int ipqhashfn(__be16 id, __be32 saddr, __be32 daddr, u8 prot)
 {
+	net_get_random_once(&ip4_frags.rnd, sizeof(ip4_frags.rnd));
 	return jhash_3words((__force u32)id << 16 | prot,
 			    (__force u32)saddr, (__force u32)daddr,
 			    ip4_frags.rnd) & (INETFRAGS_HASHSZ - 1);
-- 
cgit 


From b1190570b451fb9fd77be8c115fcdb418c5108a5 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Wed, 23 Oct 2013 11:06:56 +0200
Subject: ipv6: split inet6_hash_frag for netfilter and initialize secrets with
 net_get_random_once

Defer the fragmentation hash secret initialization for IPv6 like the
previous patch did for IPv4.

Because the netfilter logic reuses the hash secret we have to split it
first. Thus introduce a new nf_hash_frag function which takes care to
seed the hash secret.

Cc: David S. Miller <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/ipv6.h                      |  2 --
 net/ipv6/netfilter/nf_conntrack_reasm.c | 16 ++++++++++++++--
 net/ipv6/reassembly.c                   | 12 ++++++------
 3 files changed, 20 insertions(+), 10 deletions(-)

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index a35055f4f8da..dd96638ab8ff 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -805,8 +805,6 @@ int ip6_mc_source(int add, int omode, struct sock *sk,
 int ip6_mc_msfilter(struct sock *sk, struct group_filter *gsf);
 int ip6_mc_msfget(struct sock *sk, struct group_filter *gsf,
 		  struct group_filter __user *optval, int __user *optlen);
-unsigned int inet6_hash_frag(__be32 id, const struct in6_addr *saddr,
-			     const struct in6_addr *daddr, u32 rnd);
 
 #ifdef CONFIG_PROC_FS
 int ac6_proc_init(struct net *net);
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index dffdc1a389c5..4a258263d8ec 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -144,12 +144,24 @@ static inline u8 ip6_frag_ecn(const struct ipv6hdr *ipv6h)
 	return 1 << (ipv6_get_dsfield(ipv6h) & INET_ECN_MASK);
 }
 
+static unsigned int nf_hash_frag(__be32 id, const struct in6_addr *saddr,
+				 const struct in6_addr *daddr)
+{
+	u32 c;
+
+	net_get_random_once(&nf_frags.rnd, sizeof(nf_frags.rnd));
+	c = jhash_3words(ipv6_addr_hash(saddr), ipv6_addr_hash(daddr),
+			 (__force u32)id, nf_frags.rnd);
+	return c & (INETFRAGS_HASHSZ - 1);
+}
+
+
 static unsigned int nf_hashfn(struct inet_frag_queue *q)
 {
 	const struct frag_queue *nq;
 
 	nq = container_of(q, struct frag_queue, q);
-	return inet6_hash_frag(nq->id, &nq->saddr, &nq->daddr, nf_frags.rnd);
+	return nf_hash_frag(nq->id, &nq->saddr, &nq->daddr);
 }
 
 static void nf_skb_free(struct sk_buff *skb)
@@ -185,7 +197,7 @@ static inline struct frag_queue *fq_find(struct net *net, __be32 id,
 	arg.ecn = ecn;
 
 	read_lock_bh(&nf_frags.lock);
-	hash = inet6_hash_frag(id, src, dst, nf_frags.rnd);
+	hash = nf_hash_frag(id, src, dst);
 
 	q = inet_frag_find(&net->nf_frag.frags, &nf_frags, &arg, hash);
 	local_bh_enable();
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index 1aeb473b2cc6..cc85a9ba5010 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -82,24 +82,24 @@ static int ip6_frag_reasm(struct frag_queue *fq, struct sk_buff *prev,
  * callers should be careful not to use the hash value outside the ipfrag_lock
  * as doing so could race with ipfrag_hash_rnd being recalculated.
  */
-unsigned int inet6_hash_frag(__be32 id, const struct in6_addr *saddr,
-			     const struct in6_addr *daddr, u32 rnd)
+static unsigned int inet6_hash_frag(__be32 id, const struct in6_addr *saddr,
+				    const struct in6_addr *daddr)
 {
 	u32 c;
 
+	net_get_random_once(&ip6_frags.rnd, sizeof(ip6_frags.rnd));
 	c = jhash_3words(ipv6_addr_hash(saddr), ipv6_addr_hash(daddr),
-			 (__force u32)id, rnd);
+			 (__force u32)id, ip6_frags.rnd);
 
 	return c & (INETFRAGS_HASHSZ - 1);
 }
-EXPORT_SYMBOL_GPL(inet6_hash_frag);
 
 static unsigned int ip6_hashfn(struct inet_frag_queue *q)
 {
 	struct frag_queue *fq;
 
 	fq = container_of(q, struct frag_queue, q);
-	return inet6_hash_frag(fq->id, &fq->saddr, &fq->daddr, ip6_frags.rnd);
+	return inet6_hash_frag(fq->id, &fq->saddr, &fq->daddr);
 }
 
 bool ip6_frag_match(struct inet_frag_queue *q, void *a)
@@ -193,7 +193,7 @@ fq_find(struct net *net, __be32 id, const struct in6_addr *src,
 	arg.ecn = ecn;
 
 	read_lock(&ip6_frags.lock);
-	hash = inet6_hash_frag(id, src, dst, ip6_frags.rnd);
+	hash = inet6_hash_frag(id, src, dst);
 
 	q = inet_frag_find(&net->ipv6.frags, &ip6_frags, &arg, hash);
 	if (IS_ERR_OR_NULL(q)) {
-- 
cgit 


From 7088ad74e6e710d0c80ea2cead9500f47a2a5d58 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Wed, 23 Oct 2013 11:06:57 +0200
Subject: inet: remove old fragmentation hash initializing

All fragmentation hash secrets now get initialized by their
corresponding hash function with net_get_random_once. Thus we can
eliminate the initial seeding.

Also provide a comment that hash secret seeding happens at the first
call to the corresponding hashing function.

Cc: David S. Miller <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/inet_frag.h  | 4 ++++
 net/ipv4/inet_fragment.c | 3 ---
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/include/net/inet_frag.h b/include/net/inet_frag.h
index bfcbc0017950..6f59de98dabd 100644
--- a/include/net/inet_frag.h
+++ b/include/net/inet_frag.h
@@ -64,6 +64,10 @@ struct inet_frags {
 	rwlock_t		lock ____cacheline_aligned_in_smp;
 	int			secret_interval;
 	struct timer_list	secret_timer;
+
+	/* The first call to hashfn is responsible to initialize
+	 * rnd. This is best done with net_get_random_once.
+	 */
 	u32			rnd;
 	int			qsize;
 
diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index c5313a9c019b..bb075fc9a14f 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -93,9 +93,6 @@ void inet_frags_init(struct inet_frags *f)
 	}
 	rwlock_init(&f->lock);
 
-	f->rnd = (u32) ((totalram_pages ^ (totalram_pages >> 7)) ^
-				   (jiffies ^ (jiffies >> 6)));
-
 	setup_timer(&f->secret_timer, inet_frag_secret_rebuild,
 			(unsigned long)f);
 	f->secret_timer.expires = jiffies + f->secret_interval;
-- 
cgit 


From 239880ef6454ccff2ba8d762c3f86e8278f0ce1c Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Wed, 23 Oct 2013 10:50:10 +1100
Subject: xfs: decouple log and transaction headers

xfs_trans.h has a dependency on xfs_log.h for a couple of
structures. Most code that does transactions doesn't need to know
anything about the log, but this dependency means that they have to
include xfs_log.h. Decouple the xfs_trans.h and xfs_log.h header
files and clean up the includes to be in dependency order.

In doing this, remove the direct include of xfs_trans_reserve.h from
xfs_trans.h so that we remove the dependency between xfs_trans.h and
xfs_mount.h. Hence the xfs_trans.h include can be moved to the
indicate the actual dependencies other header files have on it.

Note that these are kernel only header files, so this does not
translate to any userspace changes at all.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_alloc.c          |  6 ++++--
 fs/xfs/xfs_alloc_btree.c    |  6 +++---
 fs/xfs/xfs_aops.c           |  7 ++++---
 fs/xfs/xfs_attr.c           |  8 ++++----
 fs/xfs/xfs_attr_inactive.c  |  8 ++++----
 fs/xfs/xfs_attr_leaf.c      |  7 +++----
 fs/xfs/xfs_attr_list.c      |  6 +++---
 fs/xfs/xfs_attr_remote.c    |  7 +++----
 fs/xfs/xfs_bit.c            |  5 +----
 fs/xfs/xfs_bmap.c           |  7 ++++---
 fs/xfs/xfs_bmap_btree.c     |  5 +++--
 fs/xfs/xfs_bmap_util.c      |  9 +++++----
 fs/xfs/xfs_btree.c          |  5 +++--
 fs/xfs/xfs_buf.c            |  5 +++--
 fs/xfs/xfs_buf_item.c       |  7 ++++---
 fs/xfs/xfs_da_btree.c       |  7 ++++---
 fs/xfs/xfs_dir2.c           |  6 +++---
 fs/xfs/xfs_dir2_block.c     |  6 +++---
 fs/xfs/xfs_dir2_data.c      |  6 +++---
 fs/xfs/xfs_dir2_leaf.c      |  6 +++---
 fs/xfs/xfs_dir2_node.c      |  6 +++---
 fs/xfs/xfs_dir2_readdir.c   |  6 +++---
 fs/xfs/xfs_dir2_sf.c        |  6 +++---
 fs/xfs/xfs_discard.c        |  5 +++--
 fs/xfs/xfs_dquot.c          | 10 ++++++----
 fs/xfs/xfs_dquot_buf.c      |  5 +++--
 fs/xfs/xfs_dquot_item.c     |  6 ++++--
 fs/xfs/xfs_error.c          |  5 ++---
 fs/xfs/xfs_export.c         |  7 ++++---
 fs/xfs/xfs_extent_busy.c    |  6 ++++--
 fs/xfs/xfs_extfree_item.c   |  8 ++++----
 fs/xfs/xfs_file.c           |  6 ++++--
 fs/xfs/xfs_filestream.c     | 10 +++++-----
 fs/xfs/xfs_fsops.c          |  9 +++++----
 fs/xfs/xfs_ialloc.c         |  7 ++++---
 fs/xfs/xfs_ialloc_btree.c   |  6 +++---
 fs/xfs/xfs_icache.c         |  9 ++++-----
 fs/xfs/xfs_icreate_item.c   |  5 +++--
 fs/xfs/xfs_inode.c          | 12 +++++++-----
 fs/xfs/xfs_inode_buf.c      |  7 ++++---
 fs/xfs/xfs_inode_fork.c     |  6 +++---
 fs/xfs/xfs_inode_item.c     |  8 ++++----
 fs/xfs/xfs_ioctl.c          |  7 ++++---
 fs/xfs/xfs_ioctl32.c        |  4 ++--
 fs/xfs/xfs_iomap.c          | 11 ++++++-----
 fs/xfs/xfs_iops.c           | 13 +++++++------
 fs/xfs/xfs_itable.c         |  4 ++--
 fs/xfs/xfs_log.c            |  8 +++++---
 fs/xfs/xfs_log.h            | 10 ++--------
 fs/xfs/xfs_log_cil.c        | 10 ++++++----
 fs/xfs/xfs_log_priv.h       |  7 ++++---
 fs/xfs/xfs_log_recover.c    | 13 +++++--------
 fs/xfs/xfs_log_rlimit.c     |  4 ++--
 fs/xfs/xfs_message.c        |  5 ++---
 fs/xfs/xfs_mount.c          | 10 ++++++----
 fs/xfs/xfs_qm.c             |  9 +++++----
 fs/xfs/xfs_qm_bhv.c         |  5 +++--
 fs/xfs/xfs_qm_syscalls.c    |  7 ++++---
 fs/xfs/xfs_quotaops.c       |  2 +-
 fs/xfs/xfs_rtalloc.c        |  7 ++++---
 fs/xfs/xfs_sb.c             |  7 ++++---
 fs/xfs/xfs_super.c          |  8 +++++---
 fs/xfs/xfs_symlink.c        |  8 +++++---
 fs/xfs/xfs_symlink_remote.c |  5 +++--
 fs/xfs/xfs_trace.c          |  8 +++++---
 fs/xfs/xfs_trans.c          | 10 ++++++----
 fs/xfs/xfs_trans.h          | 10 +++++-----
 fs/xfs/xfs_trans_ail.c      |  7 ++++---
 fs/xfs/xfs_trans_buf.c      |  5 +++--
 fs/xfs/xfs_trans_dquot.c    |  7 ++++---
 fs/xfs/xfs_trans_extfree.c  |  5 +++--
 fs/xfs/xfs_trans_inode.c    |  5 +++--
 fs/xfs/xfs_trans_priv.h     |  1 -
 fs/xfs/xfs_trans_resv.c     |  6 +++---
 fs/xfs/xfs_xattr.c          |  3 +--
 75 files changed, 276 insertions(+), 239 deletions(-)

diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c
index 2bfca06e0ee7..999db7a95663 100644
--- a/fs/xfs/xfs_alloc.c
+++ b/fs/xfs/xfs_alloc.c
@@ -18,10 +18,10 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_log_format.h"
 #include "xfs_shared.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -36,7 +36,9 @@
 #include "xfs_error.h"
 #include "xfs_cksum.h"
 #include "xfs_trace.h"
+#include "xfs_trans.h"
 #include "xfs_buf_item.h"
+#include "xfs_log.h"
 
 struct workqueue_struct *xfs_alloc_wq;
 
diff --git a/fs/xfs/xfs_alloc_btree.c b/fs/xfs/xfs_alloc_btree.c
index cafc90251d19..0bd33bfbb789 100644
--- a/fs/xfs/xfs_alloc_btree.c
+++ b/fs/xfs/xfs_alloc_btree.c
@@ -17,9 +17,8 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -34,6 +33,7 @@
 #include "xfs_error.h"
 #include "xfs_trace.h"
 #include "xfs_cksum.h"
+#include "xfs_trans.h"
 
 
 STATIC struct xfs_btree_cur *
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 2c61e9622f57..caa63cb3e2fd 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -16,16 +16,17 @@
  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 #include "xfs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_alloc.h"
 #include "xfs_error.h"
diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c
index dd0f48ff8832..ce6f9e0b6c5f 100644
--- a/fs/xfs/xfs_attr.c
+++ b/fs/xfs/xfs_attr.c
@@ -17,12 +17,11 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
-#include "xfs_trans_priv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -33,6 +32,7 @@
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_alloc.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
diff --git a/fs/xfs/xfs_attr_inactive.c b/fs/xfs/xfs_attr_inactive.c
index 60b60c008fb7..45480f5b6aea 100644
--- a/fs/xfs/xfs_attr_inactive.c
+++ b/fs/xfs/xfs_attr_inactive.c
@@ -18,11 +18,11 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -36,6 +36,7 @@
 #include "xfs_attr_remote.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_bmap.h"
 #include "xfs_attr.h"
@@ -43,7 +44,6 @@
 #include "xfs_error.h"
 #include "xfs_quota.h"
 #include "xfs_trace.h"
-#include "xfs_trans_priv.h"
 
 /*
  * Look at all the extents for this logical region,
diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index 94838fe67386..c10c70c88ec9 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -18,11 +18,9 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
-#include "xfs_trans_priv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -37,6 +35,7 @@
 #include "xfs_attr_remote.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_bmap.h"
 #include "xfs_attr.h"
diff --git a/fs/xfs/xfs_attr_list.c b/fs/xfs/xfs_attr_list.c
index 8ba8e4b5e310..a319eb4d123f 100644
--- a/fs/xfs/xfs_attr_list.c
+++ b/fs/xfs/xfs_attr_list.c
@@ -18,10 +18,9 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -36,6 +35,7 @@
 #include "xfs_attr_remote.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_bmap.h"
 #include "xfs_attr.h"
diff --git a/fs/xfs/xfs_attr_remote.c b/fs/xfs/xfs_attr_remote.c
index 578f21b70875..1407191f90c3 100644
--- a/fs/xfs/xfs_attr_remote.c
+++ b/fs/xfs/xfs_attr_remote.c
@@ -18,11 +18,9 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
-#include "xfs_trans_priv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -33,6 +31,7 @@
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_alloc.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
diff --git a/fs/xfs/xfs_bit.c b/fs/xfs/xfs_bit.c
index 48228848f5ae..16ce44a2b43e 100644
--- a/fs/xfs/xfs_bit.c
+++ b/fs/xfs/xfs_bit.c
@@ -16,10 +16,7 @@
  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 #include "xfs.h"
-#include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
-#include "xfs_buf_item.h"
+#include "xfs_log_format.h"
 
 /*
  * XFS bit manipulation routines, used in non-realtime code.
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index b5cb377bd2bb..c3756ac09658 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -17,12 +17,12 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
 #include "xfs_inum.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -37,6 +37,7 @@
 #include "xfs_btree.h"
 #include "xfs_mount.h"
 #include "xfs_itable.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_extfree_item.h"
 #include "xfs_alloc.h"
diff --git a/fs/xfs/xfs_bmap_btree.c b/fs/xfs/xfs_bmap_btree.c
index bb8de8e399c4..89ef4e67ff54 100644
--- a/fs/xfs/xfs_bmap_btree.c
+++ b/fs/xfs/xfs_bmap_btree.c
@@ -18,9 +18,9 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -29,6 +29,7 @@
 #include "xfs_ialloc_btree.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_alloc.h"
 #include "xfs_btree.h"
diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index 74ff478b9b75..271c0d6ceafd 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -18,12 +18,11 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_inum.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -34,6 +33,7 @@
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
+#include "xfs_trans.h"
 #include "xfs_extfree_item.h"
 #include "xfs_alloc.h"
 #include "xfs_bmap.h"
@@ -44,6 +44,7 @@
 #include "xfs_trans_space.h"
 #include "xfs_trace.h"
 #include "xfs_icache.h"
+#include "xfs_log.h"
 
 /* Kernel only BMAP related definitions and functions */
 
diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c
index 1a297e26e26c..08365117a933 100644
--- a/fs/xfs/xfs_btree.c
+++ b/fs/xfs/xfs_btree.c
@@ -18,9 +18,9 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_shared.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -29,6 +29,7 @@
 #include "xfs_ialloc_btree.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_buf_item.h"
 #include "xfs_btree.h"
diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c
index 75e4ea7b109a..c7f0b77dcb00 100644
--- a/fs/xfs/xfs_buf.c
+++ b/fs/xfs/xfs_buf.c
@@ -34,12 +34,13 @@
 #include <linux/backing-dev.h>
 #include <linux/freezer.h>
 
-#include "xfs_sb.h"
+#include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
-#include "xfs_log.h"
+#include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
 #include "xfs_trace.h"
+#include "xfs_log.h"
 
 static kmem_zone_t *xfs_buf_zone;
 
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index f1d85cfc0a54..b6d20c55282b 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -17,17 +17,18 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_trans.h"
 #include "xfs_buf_item.h"
 #include "xfs_trans_priv.h"
 #include "xfs_error.h"
 #include "xfs_trace.h"
+#include "xfs_log.h"
 
 
 kmem_zone_t	*xfs_buf_item_zone;
diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index 4ec68c361c4c..377011195975 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -18,11 +18,11 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -33,6 +33,7 @@
 #include "xfs_dir2_priv.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_alloc.h"
 #include "xfs_bmap.h"
diff --git a/fs/xfs/xfs_dir2.c b/fs/xfs/xfs_dir2.c
index f46777fa3077..cef16615f761 100644
--- a/fs/xfs/xfs_dir2.c
+++ b/fs/xfs/xfs_dir2.c
@@ -17,10 +17,9 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
-#include "xfs_log.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_inum.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -30,6 +29,7 @@
 #include "xfs_alloc_btree.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_bmap.h"
 #include "xfs_dir2.h"
diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c
index 5f172730bfa3..6c7cd3ce9e72 100644
--- a/fs/xfs/xfs_dir2_block.c
+++ b/fs/xfs/xfs_dir2_block.c
@@ -18,9 +18,8 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -29,6 +28,7 @@
 #include "xfs_bmap_btree.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_bmap.h"
 #include "xfs_buf_item.h"
diff --git a/fs/xfs/xfs_dir2_data.c b/fs/xfs/xfs_dir2_data.c
index 8cf8034ebab1..3f7edddb8eff 100644
--- a/fs/xfs/xfs_dir2_data.c
+++ b/fs/xfs/xfs_dir2_data.c
@@ -18,9 +18,8 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -32,6 +31,7 @@
 #include "xfs_dir2.h"
 #include "xfs_dir2_priv.h"
 #include "xfs_error.h"
+#include "xfs_trans.h"
 #include "xfs_buf_item.h"
 #include "xfs_cksum.h"
 
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
index d5937dab8f56..44fe4b83ac9b 100644
--- a/fs/xfs/xfs_dir2_leaf.c
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -18,10 +18,9 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -35,6 +34,7 @@
 #include "xfs_dir2_priv.h"
 #include "xfs_error.h"
 #include "xfs_trace.h"
+#include "xfs_trans.h"
 #include "xfs_buf_item.h"
 #include "xfs_cksum.h"
 
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index 85ff354db4ae..7836f048102e 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -18,9 +18,8 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -34,6 +33,7 @@
 #include "xfs_dir2_priv.h"
 #include "xfs_error.h"
 #include "xfs_trace.h"
+#include "xfs_trans.h"
 #include "xfs_buf_item.h"
 #include "xfs_cksum.h"
 
diff --git a/fs/xfs/xfs_dir2_readdir.c b/fs/xfs/xfs_dir2_readdir.c
index 6b1ffb37654a..048d582525cf 100644
--- a/fs/xfs/xfs_dir2_readdir.c
+++ b/fs/xfs/xfs_dir2_readdir.c
@@ -18,10 +18,9 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -35,6 +34,7 @@
 #include "xfs_error.h"
 #include "xfs_trace.h"
 #include "xfs_bmap.h"
+#include "xfs_trans.h"
 
 /*
  * Directory file type support functions
diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c
index 8d925963a1f2..ac3bb58b58b9 100644
--- a/fs/xfs/xfs_dir2_sf.c
+++ b/fs/xfs/xfs_dir2_sf.c
@@ -17,9 +17,8 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -28,6 +27,7 @@
 #include "xfs_bmap_btree.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_error.h"
 #include "xfs_dir2.h"
diff --git a/fs/xfs/xfs_discard.c b/fs/xfs/xfs_discard.c
index 45560ee1a4ba..d38f34cecb40 100644
--- a/fs/xfs/xfs_discard.c
+++ b/fs/xfs/xfs_discard.c
@@ -17,8 +17,8 @@
  */
 #include "xfs.h"
 #include "xfs_format.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -33,6 +33,7 @@
 #include "xfs_extent_busy.h"
 #include "xfs_discard.h"
 #include "xfs_trace.h"
+#include "xfs_log.h"
 
 STATIC int
 xfs_trim_extents(
diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c
index f85a893c2398..47a815d4a345 100644
--- a/fs/xfs/xfs_dquot.c
+++ b/fs/xfs/xfs_dquot.c
@@ -18,29 +18,31 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_log_format.h"
 #include "xfs_shared.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_alloc.h"
-#include "xfs_quota.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_inode.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
+#include "xfs_alloc.h"
+#include "xfs_quota.h"
 #include "xfs_rtalloc.h"
 #include "xfs_error.h"
 #include "xfs_itable.h"
 #include "xfs_attr.h"
+#include "xfs_trans.h"
 #include "xfs_buf_item.h"
 #include "xfs_trans_space.h"
 #include "xfs_trans_priv.h"
 #include "xfs_qm.h"
 #include "xfs_cksum.h"
 #include "xfs_trace.h"
+#include "xfs_log.h"
 
 /*
  * Lock order:
diff --git a/fs/xfs/xfs_dquot_buf.c b/fs/xfs/xfs_dquot_buf.c
index ad2c18fbdb05..3e84b3a57f57 100644
--- a/fs/xfs/xfs_dquot_buf.c
+++ b/fs/xfs/xfs_dquot_buf.c
@@ -19,15 +19,16 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_inode.h"
 #include "xfs_quota.h"
+#include "xfs_trans.h"
 #include "xfs_qm.h"
 #include "xfs_error.h"
 #include "xfs_cksum.h"
diff --git a/fs/xfs/xfs_dquot_item.c b/fs/xfs/xfs_dquot_item.c
index e838d84b4e85..f8a47f77c3fa 100644
--- a/fs/xfs/xfs_dquot_item.c
+++ b/fs/xfs/xfs_dquot_item.c
@@ -18,8 +18,8 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_alloc.h"
@@ -32,9 +32,11 @@
 #include "xfs_error.h"
 #include "xfs_itable.h"
 #include "xfs_attr.h"
+#include "xfs_trans.h"
 #include "xfs_buf_item.h"
 #include "xfs_trans_priv.h"
 #include "xfs_qm.h"
+#include "xfs_log.h"
 
 static inline struct xfs_dq_logitem *DQUOT_ITEM(struct xfs_log_item *lip)
 {
diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c
index 40f2985a27bc..d6c188cc7d43 100644
--- a/fs/xfs/xfs_error.c
+++ b/fs/xfs/xfs_error.c
@@ -17,9 +17,8 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
diff --git a/fs/xfs/xfs_export.c b/fs/xfs/xfs_export.c
index 96be1d63da9b..8502aee8e65d 100644
--- a/fs/xfs/xfs_export.c
+++ b/fs/xfs/xfs_export.c
@@ -16,9 +16,8 @@
  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 #include "xfs.h"
-#include "xfs_types.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -27,9 +26,11 @@
 #include "xfs_export.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_inode.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_trace.h"
 #include "xfs_icache.h"
+#include "xfs_log.h"
 
 /*
  * Note that we only accept fileids which are long enough rather than allow
diff --git a/fs/xfs/xfs_extent_busy.c b/fs/xfs/xfs_extent_busy.c
index 74828a7895eb..de462640606f 100644
--- a/fs/xfs/xfs_extent_busy.c
+++ b/fs/xfs/xfs_extent_busy.c
@@ -20,9 +20,9 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_log_format.h"
 #include "xfs_shared.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -31,6 +31,8 @@
 #include "xfs_inode.h"
 #include "xfs_extent_busy.h"
 #include "xfs_trace.h"
+#include "xfs_trans.h"
+#include "xfs_log.h"
 
 void
 xfs_extent_busy_insert(
diff --git a/fs/xfs/xfs_extfree_item.c b/fs/xfs/xfs_extfree_item.c
index dc53e8febbbe..3680d04f973f 100644
--- a/fs/xfs/xfs_extfree_item.c
+++ b/fs/xfs/xfs_extfree_item.c
@@ -17,14 +17,14 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
-#include "xfs_buf_item.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_trans.h"
 #include "xfs_trans_priv.h"
+#include "xfs_buf_item.h"
 #include "xfs_extfree_item.h"
 
 
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index cc22aa1b7b3b..8b43bfa023af 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -18,10 +18,10 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_shared.h"
-#include "xfs_log.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_trans.h"
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
 #include "xfs_da_btree.h"
@@ -29,6 +29,7 @@
 #include "xfs_alloc.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
@@ -37,6 +38,7 @@
 #include "xfs_dir2_priv.h"
 #include "xfs_ioctl.h"
 #include "xfs_trace.h"
+#include "xfs_log.h"
 
 #include <linux/aio.h>
 #include <linux/dcache.h>
diff --git a/fs/xfs/xfs_filestream.c b/fs/xfs/xfs_filestream.c
index ce78e654d37b..7f2c3c1c8ba4 100644
--- a/fs/xfs/xfs_filestream.c
+++ b/fs/xfs/xfs_filestream.c
@@ -16,15 +16,15 @@
  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 #include "xfs.h"
-#include "xfs_log.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_ag.h"
+#include "xfs_sb.h"
+#include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_inum.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
-#include "xfs_ag.h"
-#include "xfs_trans.h"
-#include "xfs_sb.h"
-#include "xfs_mount.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
 #include "xfs_alloc.h"
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index e5d2c43c65c4..ceaec3165921 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -17,11 +17,10 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_log_format.h"
+#include "xfs_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -30,6 +29,7 @@
 #include "xfs_ialloc_btree.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_btree.h"
 #include "xfs_error.h"
@@ -41,6 +41,7 @@
 #include "xfs_rtalloc.h"
 #include "xfs_filestream.h"
 #include "xfs_trace.h"
+#include "xfs_log.h"
 
 /*
  * File system operations
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index 8530cabf128d..c973ff8c4a7c 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -17,12 +17,12 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
 #include "xfs_inum.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -38,6 +38,7 @@
 #include "xfs_error.h"
 #include "xfs_bmap.h"
 #include "xfs_cksum.h"
+#include "xfs_trans.h"
 #include "xfs_buf_item.h"
 #include "xfs_icreate_item.h"
 #include "xfs_icache.h"
diff --git a/fs/xfs/xfs_ialloc_btree.c b/fs/xfs/xfs_ialloc_btree.c
index 5448eb6b8c12..2a0b6158e4c4 100644
--- a/fs/xfs/xfs_ialloc_btree.c
+++ b/fs/xfs/xfs_ialloc_btree.c
@@ -17,10 +17,9 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -35,6 +34,7 @@
 #include "xfs_error.h"
 #include "xfs_trace.h"
 #include "xfs_cksum.h"
+#include "xfs_trans.h"
 
 
 STATIC int
diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index 76a4ecd638c3..6db11556731d 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -18,12 +18,9 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
-#include "xfs_types.h"
-#include "xfs_log.h"
-#include "xfs_log_priv.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_inum.h"
-#include "xfs_trans.h"
-#include "xfs_trans_priv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -32,6 +29,8 @@
 #include "xfs_dinode.h"
 #include "xfs_error.h"
 #include "xfs_filestream.h"
+#include "xfs_trans.h"
+#include "xfs_trans_priv.h"
 #include "xfs_inode_item.h"
 #include "xfs_quota.h"
 #include "xfs_trace.h"
diff --git a/fs/xfs/xfs_icreate_item.c b/fs/xfs/xfs_icreate_item.c
index df8baf38eb85..d2eaccfa73f4 100644
--- a/fs/xfs/xfs_icreate_item.c
+++ b/fs/xfs/xfs_icreate_item.c
@@ -18,12 +18,13 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_shared.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_trans.h"
 #include "xfs_trans_priv.h"
 #include "xfs_error.h"
 #include "xfs_icreate_item.h"
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 23d78885c743..f0440dcb5d8c 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -19,13 +19,11 @@
 
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
-#include "xfs_log.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_inum.h"
-#include "xfs_trans.h"
-#include "xfs_trans_space.h"
-#include "xfs_trans_priv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -39,6 +37,8 @@
 #include "xfs_attr.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
+#include "xfs_trans_space.h"
+#include "xfs_trans.h"
 #include "xfs_buf_item.h"
 #include "xfs_inode_item.h"
 #include "xfs_btree.h"
@@ -53,6 +53,8 @@
 #include "xfs_trace.h"
 #include "xfs_icache.h"
 #include "xfs_symlink.h"
+#include "xfs_trans_priv.h"
+#include "xfs_log.h"
 
 kmem_zone_t *xfs_inode_zone;
 
diff --git a/fs/xfs/xfs_inode_buf.c b/fs/xfs/xfs_inode_buf.c
index 65fa56edecf3..c0f974b6cd46 100644
--- a/fs/xfs/xfs_inode_buf.c
+++ b/fs/xfs/xfs_inode_buf.c
@@ -17,10 +17,10 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -32,6 +32,7 @@
 #include "xfs_cksum.h"
 #include "xfs_icache.h"
 #include "xfs_ialloc.h"
+#include "xfs_trans.h"
 
 /*
  * Check that none of the inode's in the buffer have a next
diff --git a/fs/xfs/xfs_inode_fork.c b/fs/xfs/xfs_inode_fork.c
index 4fa56fcb38d1..b89b58a3a350 100644
--- a/fs/xfs/xfs_inode_fork.c
+++ b/fs/xfs/xfs_inode_fork.c
@@ -20,10 +20,9 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
-#include "xfs_log.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_inum.h"
-#include "xfs_trans.h"
-#include "xfs_trans_priv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -33,6 +32,7 @@
 #include "xfs_attr_sf.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
+#include "xfs_trans.h"
 #include "xfs_buf_item.h"
 #include "xfs_inode_item.h"
 #include "xfs_btree.h"
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index 378081109844..9f8e85ef2681 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -17,19 +17,19 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_trans_priv.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_error.h"
 #include "xfs_trace.h"
+#include "xfs_trans_priv.h"
 
 
 kmem_zone_t	*xfs_ili_zone;		/* inode log item zone */
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index c6c62d12a934..ea65a73d49ba 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -17,10 +17,10 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_alloc.h"
@@ -35,6 +35,7 @@
 #include "xfs_attr.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
+#include "xfs_trans.h"
 #include "xfs_buf_item.h"
 #include "xfs_fsops.h"
 #include "xfs_discard.h"
diff --git a/fs/xfs/xfs_ioctl32.c b/fs/xfs/xfs_ioctl32.c
index f671f7e472ac..1be3333b260c 100644
--- a/fs/xfs/xfs_ioctl32.c
+++ b/fs/xfs/xfs_ioctl32.c
@@ -22,8 +22,8 @@
 #include <asm/uaccess.h>
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index d8fb6dfe75ed..adadf80709b8 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -17,21 +17,22 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_alloc.h"
-#include "xfs_quota.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
+#include "xfs_alloc.h"
+#include "xfs_quota.h"
 #include "xfs_btree.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index d046dc8c1925..3f2ae19c8ca0 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -17,15 +17,12 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
-#include "xfs_acl.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_alloc.h"
-#include "xfs_quota.h"
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
 #include "xfs_bmap_btree.h"
@@ -33,10 +30,14 @@
 #include "xfs_inode.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
+#include "xfs_acl.h"
+#include "xfs_alloc.h"
+#include "xfs_quota.h"
 #include "xfs_rtalloc.h"
 #include "xfs_error.h"
 #include "xfs_itable.h"
 #include "xfs_attr.h"
+#include "xfs_trans.h"
 #include "xfs_buf_item.h"
 #include "xfs_inode_item.h"
 #include "xfs_trace.h"
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
index 4f50e637f33b..964b1caae085 100644
--- a/fs/xfs/xfs_itable.c
+++ b/fs/xfs/xfs_itable.c
@@ -18,9 +18,9 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_shared.h"
-#include "xfs_log.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_inum.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index fbaf70af3d61..5275ad886971 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -18,19 +18,21 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_shared.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
 #include "xfs_error.h"
+#include "xfs_trans.h"
+#include "xfs_trans_priv.h"
+#include "xfs_log.h"
 #include "xfs_log_priv.h"
 #include "xfs_buf_item.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
 #include "xfs_ialloc_btree.h"
 #include "xfs_log_recover.h"
-#include "xfs_trans_priv.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_trace.h"
diff --git a/fs/xfs/xfs_log.h b/fs/xfs/xfs_log.h
index 1c458487f000..e148719e0a5d 100644
--- a/fs/xfs/xfs_log.h
+++ b/fs/xfs/xfs_log.h
@@ -18,8 +18,6 @@
 #ifndef	__XFS_LOG_H__
 #define __XFS_LOG_H__
 
-#include "xfs_log_format.h"
-
 struct xfs_log_vec {
 	struct xfs_log_vec	*lv_next;	/* next lv in build list */
 	int			lv_niovecs;	/* number of iovecs in lv */
@@ -82,11 +80,7 @@ struct xlog_ticket;
 struct xfs_log_item;
 struct xfs_item_ops;
 struct xfs_trans;
-
-void	xfs_log_item_init(struct xfs_mount	*mp,
-			struct xfs_log_item	*item,
-			int			type,
-			const struct xfs_item_ops *ops);
+struct xfs_log_callback;
 
 xfs_lsn_t xfs_log_done(struct xfs_mount *mp,
 		       struct xlog_ticket *ticket,
@@ -114,7 +108,7 @@ xfs_lsn_t xlog_assign_tail_lsn_locked(struct xfs_mount *mp);
 void	  xfs_log_space_wake(struct xfs_mount *mp);
 int	  xfs_log_notify(struct xfs_mount	*mp,
 			 struct xlog_in_core	*iclog,
-			 xfs_log_callback_t	*callback_entry);
+			 struct xfs_log_callback *callback_entry);
 int	  xfs_log_release_iclog(struct xfs_mount *mp,
 			 struct xlog_in_core	 *iclog);
 int	  xfs_log_reserve(struct xfs_mount *mp,
diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c
index a844f77d2cc3..5eb51fc5eb84 100644
--- a/fs/xfs/xfs_log_cil.c
+++ b/fs/xfs/xfs_log_cil.c
@@ -17,11 +17,9 @@
 
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_log_format.h"
 #include "xfs_shared.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
-#include "xfs_trans_priv.h"
-#include "xfs_log_priv.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -29,6 +27,10 @@
 #include "xfs_alloc.h"
 #include "xfs_extent_busy.h"
 #include "xfs_discard.h"
+#include "xfs_trans.h"
+#include "xfs_trans_priv.h"
+#include "xfs_log.h"
+#include "xfs_log_priv.h"
 
 /*
  * Allocate a new ticket. Failing to get a new ticket makes it really hard to
diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h
index f80cff26fda9..9bc403a9e54f 100644
--- a/fs/xfs/xfs_log_priv.h
+++ b/fs/xfs/xfs_log_priv.h
@@ -22,6 +22,7 @@ struct xfs_buf;
 struct xlog;
 struct xlog_ticket;
 struct xfs_mount;
+struct xfs_log_callback;
 
 /*
  * Flags for log structure
@@ -227,8 +228,8 @@ typedef struct xlog_in_core {
 
 	/* Callback structures need their own cacheline */
 	spinlock_t		ic_callback_lock ____cacheline_aligned_in_smp;
-	xfs_log_callback_t	*ic_callback;
-	xfs_log_callback_t	**ic_callback_tail;
+	struct xfs_log_callback	*ic_callback;
+	struct xfs_log_callback	**ic_callback_tail;
 
 	/* reference counts need their own cacheline */
 	atomic_t		ic_refcnt ____cacheline_aligned_in_smp;
@@ -254,7 +255,7 @@ struct xfs_cil_ctx {
 	int			space_used;	/* aggregate size of regions */
 	struct list_head	busy_extents;	/* busy extents in chkpt */
 	struct xfs_log_vec	*lv_chain;	/* logvecs being pushed */
-	xfs_log_callback_t	log_cb;		/* completion callback hook. */
+	struct xfs_log_callback	log_cb;		/* completion callback hook. */
 	struct list_head	committing;	/* ctx committing list */
 };
 
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index cb3277e07844..832ba5d5eb3a 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -17,12 +17,12 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
 #include "xfs_inum.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -34,11 +34,12 @@
 #include "xfs_btree.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_alloc.h"
 #include "xfs_ialloc.h"
+#include "xfs_log.h"
 #include "xfs_log_priv.h"
-#include "xfs_buf_item.h"
 #include "xfs_log_recover.h"
 #include "xfs_extfree_item.h"
 #include "xfs_trans_priv.h"
@@ -46,14 +47,10 @@
 #include "xfs_cksum.h"
 #include "xfs_trace.h"
 #include "xfs_icache.h"
-#include "xfs_icreate_item.h"
 
 /* Need all the magic numbers and buffer ops structures from these headers */
-#include "xfs_symlink.h"
 #include "xfs_da_btree.h"
 #include "xfs_dir2.h"
-#include "xfs_attr_leaf.h"
-#include "xfs_attr_remote.h"
 
 #define BLK_AVG(blk1, blk2)	((blk1+blk2) >> 1)
 
diff --git a/fs/xfs/xfs_log_rlimit.c b/fs/xfs/xfs_log_rlimit.c
index e598bb547dee..3749bc1c00a4 100644
--- a/fs/xfs/xfs_log_rlimit.c
+++ b/fs/xfs/xfs_log_rlimit.c
@@ -18,8 +18,8 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_shared.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_ag.h"
 #include "xfs_sb.h"
 #include "xfs_mount.h"
diff --git a/fs/xfs/xfs_message.c b/fs/xfs/xfs_message.c
index 9163dc140532..63ca2f0420b1 100644
--- a/fs/xfs/xfs_message.c
+++ b/fs/xfs/xfs_message.c
@@ -17,9 +17,8 @@
 
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 170e7294b7b0..83f7810c53cd 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -17,17 +17,19 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
 #include "xfs_inum.h"
-#include "xfs_trans.h"
-#include "xfs_trans_priv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
+#include "xfs_trans.h"
+#include "xfs_trans_priv.h"
+#include "xfs_log.h"
 #include "xfs_dir2.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_alloc_btree.h"
diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
index 6dfb4e320498..e2f675644b4d 100644
--- a/fs/xfs/xfs_qm.c
+++ b/fs/xfs/xfs_qm.c
@@ -18,14 +18,12 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_log_format.h"
 #include "xfs_shared.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_alloc.h"
-#include "xfs_quota.h"
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_ialloc_btree.h"
@@ -33,10 +31,13 @@
 #include "xfs_inode.h"
 #include "xfs_ialloc.h"
 #include "xfs_itable.h"
+#include "xfs_alloc.h"
 #include "xfs_rtalloc.h"
+#include "xfs_quota.h"
 #include "xfs_error.h"
 #include "xfs_bmap.h"
 #include "xfs_attr.h"
+#include "xfs_trans.h"
 #include "xfs_buf_item.h"
 #include "xfs_trans_space.h"
 #include "xfs_qm.h"
diff --git a/fs/xfs/xfs_qm_bhv.c b/fs/xfs/xfs_qm_bhv.c
index 3af50ccdfac1..704628961159 100644
--- a/fs/xfs/xfs_qm_bhv.c
+++ b/fs/xfs/xfs_qm_bhv.c
@@ -18,8 +18,8 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_alloc.h"
@@ -32,6 +32,7 @@
 #include "xfs_rtalloc.h"
 #include "xfs_error.h"
 #include "xfs_attr.h"
+#include "xfs_trans.h"
 #include "xfs_buf_item.h"
 #include "xfs_qm.h"
 
diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c
index 174390703eb6..ab2326aaaeda 100644
--- a/fs/xfs/xfs_qm_syscalls.c
+++ b/fs/xfs/xfs_qm_syscalls.c
@@ -20,11 +20,11 @@
 
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_alloc.h"
@@ -32,6 +32,7 @@
 #include "xfs_mount.h"
 #include "xfs_bmap_btree.h"
 #include "xfs_inode.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_itable.h"
 #include "xfs_bmap.h"
diff --git a/fs/xfs/xfs_quotaops.c b/fs/xfs/xfs_quotaops.c
index 1326d81596c2..2dd467b0b475 100644
--- a/fs/xfs/xfs_quotaops.c
+++ b/fs/xfs/xfs_quotaops.c
@@ -17,8 +17,8 @@
  */
 #include "xfs.h"
 #include "xfs_format.h"
+#include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
-#include "xfs_log.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c
index 6f63de303e8e..23c5ca24a02d 100644
--- a/fs/xfs/xfs_rtalloc.c
+++ b/fs/xfs/xfs_rtalloc.c
@@ -17,11 +17,11 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -34,6 +34,7 @@
 #include "xfs_rtalloc.h"
 #include "xfs_fsops.h"
 #include "xfs_error.h"
+#include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_trans_space.h"
 #include "xfs_trace.h"
diff --git a/fs/xfs/xfs_sb.c b/fs/xfs/xfs_sb.c
index 73b24e15cef7..1b0a6420f1b8 100644
--- a/fs/xfs/xfs_sb.c
+++ b/fs/xfs/xfs_sb.c
@@ -18,11 +18,10 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
 #include "xfs_inum.h"
-#include "xfs_trans.h"
-#include "xfs_trans_priv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -44,6 +43,8 @@
 #include "xfs_fsops.h"
 #include "xfs_trace.h"
 #include "xfs_cksum.h"
+#include "xfs_trans.h"
+#include "xfs_trans_priv.h"
 #include "xfs_buf_item.h"
 
 /*
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index a28eca47aa4c..4e20b420ff72 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -17,11 +17,11 @@
  */
 
 #include "xfs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
-#include "xfs_log.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_inum.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_alloc.h"
@@ -41,7 +41,9 @@
 #include "xfs_itable.h"
 #include "xfs_fsops.h"
 #include "xfs_attr.h"
+#include "xfs_trans.h"
 #include "xfs_buf_item.h"
+#include "xfs_log.h"
 #include "xfs_log_priv.h"
 #include "xfs_trans_priv.h"
 #include "xfs_filestream.h"
diff --git a/fs/xfs/xfs_symlink.c b/fs/xfs/xfs_symlink.c
index db32c504372c..93fc72c96fad 100644
--- a/fs/xfs/xfs_symlink.c
+++ b/fs/xfs/xfs_symlink.c
@@ -17,12 +17,12 @@
  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 #include "xfs.h"
+#include "xfs_shared.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
-#include "xfs_shared.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -41,7 +41,9 @@
 #include "xfs_trans_space.h"
 #include "xfs_trace.h"
 #include "xfs_symlink.h"
+#include "xfs_trans.h"
 #include "xfs_buf_item.h"
+#include "xfs_log.h"
 
 /* ----- Kernel only functions below ----- */
 STATIC int
diff --git a/fs/xfs/xfs_symlink_remote.c b/fs/xfs/xfs_symlink_remote.c
index 4251cd8e8fec..bf59a2b45f8c 100644
--- a/fs/xfs/xfs_symlink_remote.c
+++ b/fs/xfs/xfs_symlink_remote.c
@@ -19,9 +19,9 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_format.h"
+#include "xfs_log_format.h"
 #include "xfs_shared.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_trans_resv.h"
 #include "xfs_ag.h"
 #include "xfs_sb.h"
 #include "xfs_mount.h"
@@ -31,6 +31,7 @@
 #include "xfs_trace.h"
 #include "xfs_symlink.h"
 #include "xfs_cksum.h"
+#include "xfs_trans.h"
 #include "xfs_buf_item.h"
 
 
diff --git a/fs/xfs/xfs_trace.c b/fs/xfs/xfs_trace.c
index 6ca992020326..889bb4233323 100644
--- a/fs/xfs/xfs_trace.c
+++ b/fs/xfs/xfs_trace.c
@@ -17,10 +17,10 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -38,6 +38,8 @@
 #include "xfs_bmap.h"
 #include "xfs_attr.h"
 #include "xfs_attr_leaf.h"
+#include "xfs_trans.h"
+#include "xfs_log.h"
 #include "xfs_log_priv.h"
 #include "xfs_buf_item.h"
 #include "xfs_quota.h"
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index 06000a9647d5..8d1595f9fd50 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -18,10 +18,10 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -38,10 +38,12 @@
 #include "xfs_extent_busy.h"
 #include "xfs_bmap.h"
 #include "xfs_quota.h"
-#include "xfs_qm.h"
+#include "xfs_trans.h"
 #include "xfs_trans_priv.h"
 #include "xfs_trans_space.h"
+#include "xfs_qm.h"
 #include "xfs_inode_item.h"
+#include "xfs_log.h"
 #include "xfs_log_priv.h"
 #include "xfs_buf_item.h"
 #include "xfs_trace.h"
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index 71c835e9e810..9cc5fbed4f26 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -18,10 +18,6 @@
 #ifndef	__XFS_TRANS_H__
 #define	__XFS_TRANS_H__
 
-struct xfs_log_item;
-
-#include "xfs_trans_resv.h"
-
 /* kernel only transaction subsystem defines */
 
 struct xfs_buf;
@@ -77,6 +73,9 @@ struct xfs_item_ops {
 	void (*iop_committing)(xfs_log_item_t *, xfs_lsn_t);
 };
 
+void	xfs_log_item_init(struct xfs_mount *mp, struct xfs_log_item *item,
+			  int type, const struct xfs_item_ops *ops);
+
 /*
  * Return values for the iop_push() routines.
  */
@@ -85,6 +84,7 @@ struct xfs_item_ops {
 #define XFS_ITEM_LOCKED		2
 #define XFS_ITEM_FLUSHING	3
 
+
 /*
  * This is the structure maintained for every active transaction.
  */
@@ -125,7 +125,6 @@ typedef struct xfs_trans {
 	int64_t			t_rextents_delta;/* superblocks rextents chg */
 	int64_t			t_rextslog_delta;/* superblocks rextslog chg */
 	struct list_head	t_items;	/* log item descriptors */
-	xfs_trans_header_t	t_header;	/* header for in-log trans */
 	struct list_head	t_busy;		/* list of busy extents */
 	unsigned long		t_pflags;	/* saved process flags state */
 } xfs_trans_t;
@@ -230,6 +229,7 @@ void		xfs_trans_log_efd_extent(xfs_trans_t *,
 					 xfs_fsblock_t,
 					 xfs_extlen_t);
 int		xfs_trans_commit(xfs_trans_t *, uint flags);
+int		xfs_trans_roll(struct xfs_trans **, struct xfs_inode *);
 void		xfs_trans_cancel(xfs_trans_t *, int);
 int		xfs_trans_ail_init(struct xfs_mount *);
 void		xfs_trans_ail_destroy(struct xfs_mount *);
diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c
index 21c6d7ddbc06..4b47cfebd25b 100644
--- a/fs/xfs/xfs_trans_ail.c
+++ b/fs/xfs/xfs_trans_ail.c
@@ -18,15 +18,16 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_types.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_trans.h"
 #include "xfs_trans_priv.h"
 #include "xfs_trace.h"
 #include "xfs_error.h"
+#include "xfs_log.h"
 
 #ifdef DEBUG
 /*
diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c
index 0167a65ec851..6b1b993257d6 100644
--- a/fs/xfs/xfs_trans_buf.c
+++ b/fs/xfs/xfs_trans_buf.c
@@ -18,8 +18,8 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_shared.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -28,6 +28,7 @@
 #include "xfs_ialloc_btree.h"
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
+#include "xfs_trans.h"
 #include "xfs_buf_item.h"
 #include "xfs_trans_priv.h"
 #include "xfs_error.h"
diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c
index 4d630d2c2804..2025f6eea4aa 100644
--- a/fs/xfs/xfs_trans_dquot.c
+++ b/fs/xfs/xfs_trans_dquot.c
@@ -17,10 +17,10 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_alloc.h"
@@ -33,6 +33,7 @@
 #include "xfs_rtalloc.h"
 #include "xfs_error.h"
 #include "xfs_attr.h"
+#include "xfs_trans.h"
 #include "xfs_buf_item.h"
 #include "xfs_trans_priv.h"
 #include "xfs_qm.h"
diff --git a/fs/xfs/xfs_trans_extfree.c b/fs/xfs/xfs_trans_extfree.c
index 3bfb98bec050..47978ba89dae 100644
--- a/fs/xfs/xfs_trans_extfree.c
+++ b/fs/xfs/xfs_trans_extfree.c
@@ -18,11 +18,12 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_shared.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_trans.h"
 #include "xfs_trans_priv.h"
 #include "xfs_extfree_item.h"
 
diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c
index dcab52ec9cb6..b1a0efa6b32a 100644
--- a/fs/xfs/xfs_trans_inode.c
+++ b/fs/xfs/xfs_trans_inode.c
@@ -18,8 +18,8 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_shared.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -29,6 +29,7 @@
 #include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
+#include "xfs_trans.h"
 #include "xfs_trans_priv.h"
 #include "xfs_inode_item.h"
 #include "xfs_trace.h"
diff --git a/fs/xfs/xfs_trans_priv.h b/fs/xfs/xfs_trans_priv.h
index c52def0b441c..12e86af9d9b9 100644
--- a/fs/xfs/xfs_trans_priv.h
+++ b/fs/xfs/xfs_trans_priv.h
@@ -27,7 +27,6 @@ struct xfs_log_vec;
 
 
 void	xfs_trans_init(struct xfs_mount *);
-int	xfs_trans_roll(struct xfs_trans **, struct xfs_inode *);
 void	xfs_trans_add_item(struct xfs_trans *, struct xfs_log_item *);
 void	xfs_trans_del_item(struct xfs_log_item *);
 void	xfs_trans_free_items(struct xfs_trans *tp, xfs_lsn_t commit_lsn,
diff --git a/fs/xfs/xfs_trans_resv.c b/fs/xfs/xfs_trans_resv.c
index cc8361255c8e..89de046331da 100644
--- a/fs/xfs/xfs_trans_resv.c
+++ b/fs/xfs/xfs_trans_resv.c
@@ -18,11 +18,10 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
-#include "xfs_format.h"
 #include "xfs_shared.h"
-#include "xfs_log.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
-#include "xfs_trans.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
@@ -41,6 +40,7 @@
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
 #include "xfs_quota.h"
+#include "xfs_trans.h"
 #include "xfs_qm.h"
 #include "xfs_trans_space.h"
 #include "xfs_trace.h"
diff --git a/fs/xfs/xfs_xattr.c b/fs/xfs/xfs_xattr.c
index 08047502683d..23052992c7e2 100644
--- a/fs/xfs/xfs_xattr.c
+++ b/fs/xfs/xfs_xattr.c
@@ -18,8 +18,7 @@
 
 #include "xfs.h"
 #include "xfs_log_format.h"
-#include "xfs_log.h"
-#include "xfs_trans.h"
+#include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-- 
cgit 


From a4fbe6ab1e7abecf42b75e9c73701ed33b4ab03b Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Wed, 23 Oct 2013 10:51:50 +1100
Subject: xfs: decouple inode and bmap btree header files

Currently the xfs_inode.h header has a dependency on the definition
of the BMAP btree records as the inode fork includes an array of
xfs_bmbt_rec_host_t objects in it's definition.

Move all the btree format definitions from xfs_btree.h,
xfs_bmap_btree.h, xfs_alloc_btree.h and xfs_ialloc_btree.h to
xfs_format.h to continue the process of centralising the on-disk
format definitions. With this done, the xfs inode definitions are no
longer dependent on btree header files.

The enables a massive culling of unnecessary includes, with close to
200 #include directives removed from the XFS kernel code base.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_acl.c           |   8 +-
 fs/xfs/xfs_alloc.c         |   5 +-
 fs/xfs/xfs_alloc_btree.c   |   7 +-
 fs/xfs/xfs_alloc_btree.h   |  33 ------
 fs/xfs/xfs_aops.c          |   4 +-
 fs/xfs/xfs_attr.c          |   4 +-
 fs/xfs/xfs_attr_inactive.c |   8 +-
 fs/xfs/xfs_attr_leaf.c     |  13 +--
 fs/xfs/xfs_attr_list.c     |  12 +--
 fs/xfs/xfs_attr_remote.c   |   5 +-
 fs/xfs/xfs_bmap.c          |  12 +--
 fs/xfs/xfs_bmap_btree.c    |   7 +-
 fs/xfs/xfs_bmap_btree.h    | 103 ------------------
 fs/xfs/xfs_bmap_util.c     |   6 +-
 fs/xfs/xfs_btree.c         |   5 +-
 fs/xfs/xfs_btree.h         |  79 +++-----------
 fs/xfs/xfs_buf_item.h      |   4 -
 fs/xfs/xfs_da_btree.c      |   2 -
 fs/xfs/xfs_dir2.c          |   5 +-
 fs/xfs/xfs_dir2_block.c    |   4 +-
 fs/xfs/xfs_dir2_data.c     |   3 +-
 fs/xfs/xfs_dir2_leaf.c     |   4 +-
 fs/xfs/xfs_dir2_node.c     |   3 +-
 fs/xfs/xfs_dir2_readdir.c  |   4 +-
 fs/xfs/xfs_dir2_sf.c       |   4 +-
 fs/xfs/xfs_discard.c       |   6 +-
 fs/xfs/xfs_dquot.c         |   5 +-
 fs/xfs/xfs_dquot_buf.c     |   2 -
 fs/xfs/xfs_dquot_item.c    |   8 +-
 fs/xfs/xfs_error.c         |   4 +-
 fs/xfs/xfs_export.c        |   2 +-
 fs/xfs/xfs_extent_busy.c   |   2 -
 fs/xfs/xfs_extent_busy.h   |   4 +
 fs/xfs/xfs_file.c          |   5 +-
 fs/xfs/xfs_filestream.c    |   4 +-
 fs/xfs/xfs_format.h        | 255 +++++++++++++++++++++++++++++++++++++++++++++
 fs/xfs/xfs_fsops.c         |  12 +--
 fs/xfs/xfs_ialloc.c        |   6 +-
 fs/xfs/xfs_ialloc.h        |   3 +-
 fs/xfs/xfs_ialloc_btree.c  |   6 +-
 fs/xfs/xfs_ialloc_btree.h  |  49 ---------
 fs/xfs/xfs_icache.c        |   4 -
 fs/xfs/xfs_inode.c         |  10 +-
 fs/xfs/xfs_inode.h         |   1 -
 fs/xfs/xfs_inode_buf.c     |   6 +-
 fs/xfs/xfs_inode_fork.c    |  16 +--
 fs/xfs/xfs_inode_fork.h    |   1 +
 fs/xfs/xfs_inode_item.c    |   4 +-
 fs/xfs/xfs_ioctl.c         |   9 +-
 fs/xfs/xfs_ioctl32.c       |   3 +-
 fs/xfs/xfs_iomap.c         |  16 +--
 fs/xfs/xfs_iops.c          |   8 +-
 fs/xfs/xfs_itable.c        |   9 +-
 fs/xfs/xfs_log.c           |   6 +-
 fs/xfs/xfs_log_recover.c   |  18 ++--
 fs/xfs/xfs_log_rlimit.c    |   3 +-
 fs/xfs/xfs_mount.c         |  15 +--
 fs/xfs/xfs_qm.c            |  11 +-
 fs/xfs/xfs_qm_bhv.c        |   7 --
 fs/xfs/xfs_qm_syscalls.c   |  10 +-
 fs/xfs/xfs_quotaops.c      |   3 +-
 fs/xfs/xfs_rtalloc.c       |   9 +-
 fs/xfs/xfs_sb.c            |  18 +---
 fs/xfs/xfs_super.c         |  16 +--
 fs/xfs/xfs_symlink.c       |   6 +-
 fs/xfs/xfs_trace.c         |   5 +-
 fs/xfs/xfs_trans.c         |  16 +--
 fs/xfs/xfs_trans.h         |   5 +
 fs/xfs/xfs_trans_buf.c     |   5 +-
 fs/xfs/xfs_trans_dquot.c   |   9 +-
 fs/xfs/xfs_trans_inode.c   |   6 +-
 fs/xfs/xfs_trans_resv.c    |  12 +--
 fs/xfs/xfs_xattr.c         |   2 +-
 73 files changed, 403 insertions(+), 583 deletions(-)

diff --git a/fs/xfs/xfs_acl.c b/fs/xfs/xfs_acl.c
index 0e2f37efedd0..370eb3e121d1 100644
--- a/fs/xfs/xfs_acl.c
+++ b/fs/xfs/xfs_acl.c
@@ -16,15 +16,15 @@
  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 #include "xfs.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
-#include "xfs_acl.h"
-#include "xfs_attr.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_inode.h"
 #include "xfs_ag.h"
 #include "xfs_sb.h"
 #include "xfs_mount.h"
+#include "xfs_inode.h"
+#include "xfs_acl.h"
+#include "xfs_attr.h"
 #include "xfs_trace.h"
 #include <linux/slab.h>
 #include <linux/xattr.h>
diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c
index 999db7a95663..bcf16528bac5 100644
--- a/fs/xfs/xfs_alloc.c
+++ b/fs/xfs/xfs_alloc.c
@@ -25,12 +25,9 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
+#include "xfs_alloc_btree.h"
 #include "xfs_alloc.h"
 #include "xfs_extent_busy.h"
 #include "xfs_error.h"
diff --git a/fs/xfs/xfs_alloc_btree.c b/fs/xfs/xfs_alloc_btree.c
index 0bd33bfbb789..698587f6c60a 100644
--- a/fs/xfs/xfs_alloc_btree.c
+++ b/fs/xfs/xfs_alloc_btree.c
@@ -17,17 +17,14 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
-#include "xfs_inode.h"
 #include "xfs_btree.h"
+#include "xfs_alloc_btree.h"
 #include "xfs_alloc.h"
 #include "xfs_extent_busy.h"
 #include "xfs_error.h"
diff --git a/fs/xfs/xfs_alloc_btree.h b/fs/xfs/xfs_alloc_btree.h
index 72676c36b1bb..45e189e7e81c 100644
--- a/fs/xfs/xfs_alloc_btree.h
+++ b/fs/xfs/xfs_alloc_btree.h
@@ -26,39 +26,6 @@ struct xfs_buf;
 struct xfs_btree_cur;
 struct xfs_mount;
 
-/*
- * There are two on-disk btrees, one sorted by blockno and one sorted
- * by blockcount and blockno.  All blocks look the same to make the code
- * simpler; if we have time later, we'll make the optimizations.
- */
-#define	XFS_ABTB_MAGIC		0x41425442	/* 'ABTB' for bno tree */
-#define	XFS_ABTB_CRC_MAGIC	0x41423342	/* 'AB3B' */
-#define	XFS_ABTC_MAGIC		0x41425443	/* 'ABTC' for cnt tree */
-#define	XFS_ABTC_CRC_MAGIC	0x41423343	/* 'AB3C' */
-
-/*
- * Data record/key structure
- */
-typedef struct xfs_alloc_rec {
-	__be32		ar_startblock;	/* starting block number */
-	__be32		ar_blockcount;	/* count of free blocks */
-} xfs_alloc_rec_t, xfs_alloc_key_t;
-
-typedef struct xfs_alloc_rec_incore {
-	xfs_agblock_t	ar_startblock;	/* starting block number */
-	xfs_extlen_t	ar_blockcount;	/* count of free blocks */
-} xfs_alloc_rec_incore_t;
-
-/* btree pointer type */
-typedef __be32 xfs_alloc_ptr_t;
-
-/*
- * Block numbers in the AG:
- * SB is sector 0, AGF is sector 1, AGI is sector 2, AGFL is sector 3.
- */
-#define	XFS_BNO_BLOCK(mp)	((xfs_agblock_t)(XFS_AGFL_BLOCK(mp) + 1))
-#define	XFS_CNT_BLOCK(mp)	((xfs_agblock_t)(XFS_BNO_BLOCK(mp) + 1))
-
 /*
  * Btree block header size depends on a superblock flag.
  */
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index caa63cb3e2fd..eb310caf13b1 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -23,8 +23,6 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_trans.h"
 #include "xfs_inode_item.h"
@@ -34,6 +32,8 @@
 #include "xfs_trace.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_dinode.h"
 #include <linux/aio.h>
 #include <linux/gfp.h>
 #include <linux/mpage.h>
diff --git a/fs/xfs/xfs_attr.c b/fs/xfs/xfs_attr.c
index ce6f9e0b6c5f..b86127072ac3 100644
--- a/fs/xfs/xfs_attr.c
+++ b/fs/xfs/xfs_attr.c
@@ -27,15 +27,14 @@
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
 #include "xfs_da_btree.h"
-#include "xfs_bmap_btree.h"
 #include "xfs_attr_sf.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_alloc.h"
 #include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
+#include "xfs_bmap_btree.h"
 #include "xfs_attr.h"
 #include "xfs_attr_leaf.h"
 #include "xfs_attr_remote.h"
@@ -43,6 +42,7 @@
 #include "xfs_quota.h"
 #include "xfs_trans_space.h"
 #include "xfs_trace.h"
+#include "xfs_dinode.h"
 
 /*
  * xfs_attr.c
diff --git a/fs/xfs/xfs_attr_inactive.c b/fs/xfs/xfs_attr_inactive.c
index 45480f5b6aea..f33fb62b7f17 100644
--- a/fs/xfs/xfs_attr_inactive.c
+++ b/fs/xfs/xfs_attr_inactive.c
@@ -28,14 +28,9 @@
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
 #include "xfs_da_btree.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
+#include "xfs_inode.h"
 #include "xfs_alloc.h"
-#include "xfs_btree.h"
 #include "xfs_attr_remote.h"
-#include "xfs_dinode.h"
-#include "xfs_inode.h"
 #include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_bmap.h"
@@ -44,6 +39,7 @@
 #include "xfs_error.h"
 #include "xfs_quota.h"
 #include "xfs_trace.h"
+#include "xfs_dinode.h"
 
 /*
  * Look at all the extents for this logical region,
diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index c10c70c88ec9..a0f90193a247 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -18,6 +18,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_bit.h"
@@ -26,24 +27,20 @@
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
 #include "xfs_da_btree.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_alloc.h"
-#include "xfs_btree.h"
-#include "xfs_attr_sf.h"
-#include "xfs_attr_remote.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_trans.h"
 #include "xfs_inode_item.h"
+#include "xfs_bmap_btree.h"
 #include "xfs_bmap.h"
+#include "xfs_attr_sf.h"
+#include "xfs_attr_remote.h"
 #include "xfs_attr.h"
 #include "xfs_attr_leaf.h"
 #include "xfs_error.h"
 #include "xfs_trace.h"
 #include "xfs_buf_item.h"
 #include "xfs_cksum.h"
+#include "xfs_dinode.h"
 
 
 /*
diff --git a/fs/xfs/xfs_attr_list.c b/fs/xfs/xfs_attr_list.c
index a319eb4d123f..46c4ce148a43 100644
--- a/fs/xfs/xfs_attr_list.c
+++ b/fs/xfs/xfs_attr_list.c
@@ -18,6 +18,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_bit.h"
@@ -26,24 +27,19 @@
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
 #include "xfs_da_btree.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_alloc.h"
-#include "xfs_btree.h"
-#include "xfs_attr_sf.h"
-#include "xfs_attr_remote.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_bmap.h"
 #include "xfs_attr.h"
+#include "xfs_attr_sf.h"
+#include "xfs_attr_remote.h"
 #include "xfs_attr_leaf.h"
 #include "xfs_error.h"
 #include "xfs_trace.h"
 #include "xfs_buf_item.h"
 #include "xfs_cksum.h"
+#include "xfs_dinode.h"
 
 STATIC int
 xfs_attr_shortform_compare(const void *a, const void *b)
diff --git a/fs/xfs/xfs_attr_remote.c b/fs/xfs/xfs_attr_remote.c
index 1407191f90c3..2e5530467f2d 100644
--- a/fs/xfs/xfs_attr_remote.c
+++ b/fs/xfs/xfs_attr_remote.c
@@ -18,6 +18,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_bit.h"
@@ -25,10 +26,7 @@
 #include "xfs_ag.h"
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
-#include "xfs_error.h"
 #include "xfs_da_btree.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_alloc.h"
 #include "xfs_trans.h"
@@ -42,6 +40,7 @@
 #include "xfs_trace.h"
 #include "xfs_cksum.h"
 #include "xfs_buf_item.h"
+#include "xfs_error.h"
 
 #define ATTR_RMTVALUE_MAPSIZE	1	/* # of map entries at once */
 
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index c3756ac09658..1c02da8bb7df 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -29,29 +29,25 @@
 #include "xfs_da_format.h"
 #include "xfs_da_btree.h"
 #include "xfs_dir2.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
-#include "xfs_mount.h"
-#include "xfs_itable.h"
 #include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_extfree_item.h"
 #include "xfs_alloc.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
+#include "xfs_bmap_btree.h"
 #include "xfs_rtalloc.h"
 #include "xfs_error.h"
-#include "xfs_attr_leaf.h"
 #include "xfs_quota.h"
 #include "xfs_trans_space.h"
 #include "xfs_buf_item.h"
-#include "xfs_filestream.h"
 #include "xfs_trace.h"
 #include "xfs_symlink.h"
+#include "xfs_attr_leaf.h"
+#include "xfs_dinode.h"
+#include "xfs_filestream.h"
 
 
 kmem_zone_t		*xfs_bmap_free_item_zone;
diff --git a/fs/xfs/xfs_bmap_btree.c b/fs/xfs/xfs_bmap_btree.c
index 89ef4e67ff54..2fb4a2202e17 100644
--- a/fs/xfs/xfs_bmap_btree.c
+++ b/fs/xfs/xfs_bmap_btree.c
@@ -24,21 +24,18 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_alloc.h"
 #include "xfs_btree.h"
-#include "xfs_itable.h"
+#include "xfs_bmap_btree.h"
 #include "xfs_bmap.h"
 #include "xfs_error.h"
 #include "xfs_quota.h"
 #include "xfs_trace.h"
 #include "xfs_cksum.h"
+#include "xfs_dinode.h"
 
 /*
  * Determine the extent state.
diff --git a/fs/xfs/xfs_bmap_btree.h b/fs/xfs/xfs_bmap_btree.h
index e2b0768a89ba..6e42e1e50b89 100644
--- a/fs/xfs/xfs_bmap_btree.h
+++ b/fs/xfs/xfs_bmap_btree.h
@@ -18,94 +18,12 @@
 #ifndef __XFS_BMAP_BTREE_H__
 #define __XFS_BMAP_BTREE_H__
 
-#define XFS_BMAP_MAGIC		0x424d4150	/* 'BMAP' */
-#define XFS_BMAP_CRC_MAGIC	0x424d4133	/* 'BMA3' */
-
 struct xfs_btree_cur;
 struct xfs_btree_block;
 struct xfs_mount;
 struct xfs_inode;
 struct xfs_trans;
 
-/*
- * Bmap root header, on-disk form only.
- */
-typedef struct xfs_bmdr_block {
-	__be16		bb_level;	/* 0 is a leaf */
-	__be16		bb_numrecs;	/* current # of data records */
-} xfs_bmdr_block_t;
-
-/*
- * Bmap btree record and extent descriptor.
- *  l0:63 is an extent flag (value 1 indicates non-normal).
- *  l0:9-62 are startoff.
- *  l0:0-8 and l1:21-63 are startblock.
- *  l1:0-20 are blockcount.
- */
-#define BMBT_EXNTFLAG_BITLEN	1
-#define BMBT_STARTOFF_BITLEN	54
-#define BMBT_STARTBLOCK_BITLEN	52
-#define BMBT_BLOCKCOUNT_BITLEN	21
-
-typedef struct xfs_bmbt_rec {
-	__be64			l0, l1;
-} xfs_bmbt_rec_t;
-
-typedef __uint64_t	xfs_bmbt_rec_base_t;	/* use this for casts */
-typedef xfs_bmbt_rec_t xfs_bmdr_rec_t;
-
-typedef struct xfs_bmbt_rec_host {
-	__uint64_t		l0, l1;
-} xfs_bmbt_rec_host_t;
-
-/*
- * Values and macros for delayed-allocation startblock fields.
- */
-#define STARTBLOCKVALBITS	17
-#define STARTBLOCKMASKBITS	(15 + XFS_BIG_BLKNOS * 20)
-#define DSTARTBLOCKMASKBITS	(15 + 20)
-#define STARTBLOCKMASK		\
-	(((((xfs_fsblock_t)1) << STARTBLOCKMASKBITS) - 1) << STARTBLOCKVALBITS)
-#define DSTARTBLOCKMASK		\
-	(((((xfs_dfsbno_t)1) << DSTARTBLOCKMASKBITS) - 1) << STARTBLOCKVALBITS)
-
-static inline int isnullstartblock(xfs_fsblock_t x)
-{
-	return ((x) & STARTBLOCKMASK) == STARTBLOCKMASK;
-}
-
-static inline int isnulldstartblock(xfs_dfsbno_t x)
-{
-	return ((x) & DSTARTBLOCKMASK) == DSTARTBLOCKMASK;
-}
-
-static inline xfs_fsblock_t nullstartblock(int k)
-{
-	ASSERT(k < (1 << STARTBLOCKVALBITS));
-	return STARTBLOCKMASK | (k);
-}
-
-static inline xfs_filblks_t startblockval(xfs_fsblock_t x)
-{
-	return (xfs_filblks_t)((x) & ~STARTBLOCKMASK);
-}
-
-/*
- * Possible extent formats.
- */
-typedef enum {
-	XFS_EXTFMT_NOSTATE = 0,
-	XFS_EXTFMT_HASSTATE
-} xfs_exntfmt_t;
-
-/*
- * Possible extent states.
- */
-typedef enum {
-	XFS_EXT_NORM, XFS_EXT_UNWRITTEN,
-	XFS_EXT_DMAPI_OFFLINE, XFS_EXT_INVALID
-} xfs_exntst_t;
-
 /*
  * Extent state and extent format macros.
  */
@@ -114,27 +32,6 @@ typedef enum {
 		XFS_EXTFMT_HASSTATE : XFS_EXTFMT_NOSTATE)
 #define ISUNWRITTEN(x)	((x)->br_state == XFS_EXT_UNWRITTEN)
 
-/*
- * Incore version of above.
- */
-typedef struct xfs_bmbt_irec
-{
-	xfs_fileoff_t	br_startoff;	/* starting file offset */
-	xfs_fsblock_t	br_startblock;	/* starting block number */
-	xfs_filblks_t	br_blockcount;	/* number of blocks */
-	xfs_exntst_t	br_state;	/* extent state */
-} xfs_bmbt_irec_t;
-
-/*
- * Key structure for non-leaf levels of the tree.
- */
-typedef struct xfs_bmbt_key {
-	__be64		br_startoff;	/* starting file offset */
-} xfs_bmbt_key_t, xfs_bmdr_key_t;
-
-/* btree pointer type */
-typedef __be64 xfs_bmbt_ptr_t, xfs_bmdr_ptr_t;
-
 /*
  * Btree block header size depends on a superblock flag.
  */
diff --git a/fs/xfs/xfs_bmap_util.c b/fs/xfs/xfs_bmap_util.c
index 271c0d6ceafd..5887e41c0323 100644
--- a/fs/xfs/xfs_bmap_util.c
+++ b/fs/xfs/xfs_bmap_util.c
@@ -27,10 +27,6 @@
 #include "xfs_ag.h"
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
 #include "xfs_trans.h"
@@ -38,6 +34,7 @@
 #include "xfs_alloc.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
+#include "xfs_bmap_btree.h"
 #include "xfs_rtalloc.h"
 #include "xfs_error.h"
 #include "xfs_quota.h"
@@ -45,6 +42,7 @@
 #include "xfs_trace.h"
 #include "xfs_icache.h"
 #include "xfs_log.h"
+#include "xfs_dinode.h"
 
 /* Kernel only BMAP related definitions and functions */
 
diff --git a/fs/xfs/xfs_btree.c b/fs/xfs/xfs_btree.c
index 08365117a933..9adaae4f3e2f 100644
--- a/fs/xfs/xfs_btree.c
+++ b/fs/xfs/xfs_btree.c
@@ -18,16 +18,13 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_shared.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_bit.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_trans.h"
 #include "xfs_inode_item.h"
diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h
index 06729b67ad58..91e34f21bace 100644
--- a/fs/xfs/xfs_btree.h
+++ b/fs/xfs/xfs_btree.h
@@ -26,73 +26,6 @@ struct xfs_trans;
 
 extern kmem_zone_t	*xfs_btree_cur_zone;
 
-/*
- * This nonsense is to make -wlint happy.
- */
-#define	XFS_LOOKUP_EQ	((xfs_lookup_t)XFS_LOOKUP_EQi)
-#define	XFS_LOOKUP_LE	((xfs_lookup_t)XFS_LOOKUP_LEi)
-#define	XFS_LOOKUP_GE	((xfs_lookup_t)XFS_LOOKUP_GEi)
-
-#define	XFS_BTNUM_BNO	((xfs_btnum_t)XFS_BTNUM_BNOi)
-#define	XFS_BTNUM_CNT	((xfs_btnum_t)XFS_BTNUM_CNTi)
-#define	XFS_BTNUM_BMAP	((xfs_btnum_t)XFS_BTNUM_BMAPi)
-#define	XFS_BTNUM_INO	((xfs_btnum_t)XFS_BTNUM_INOi)
-
-/*
- * Generic btree header.
- *
- * This is a combination of the actual format used on disk for short and long
- * format btrees.  The first three fields are shared by both format, but the
- * pointers are different and should be used with care.
- *
- * To get the size of the actual short or long form headers please use the size
- * macros below.  Never use sizeof(xfs_btree_block).
- *
- * The blkno, crc, lsn, owner and uuid fields are only available in filesystems
- * with the crc feature bit, and all accesses to them must be conditional on
- * that flag.
- */
-struct xfs_btree_block {
-	__be32		bb_magic;	/* magic number for block type */
-	__be16		bb_level;	/* 0 is a leaf */
-	__be16		bb_numrecs;	/* current # of data records */
-	union {
-		struct {
-			__be32		bb_leftsib;
-			__be32		bb_rightsib;
-
-			__be64		bb_blkno;
-			__be64		bb_lsn;
-			uuid_t		bb_uuid;
-			__be32		bb_owner;
-			__le32		bb_crc;
-		} s;			/* short form pointers */
-		struct	{
-			__be64		bb_leftsib;
-			__be64		bb_rightsib;
-
-			__be64		bb_blkno;
-			__be64		bb_lsn;
-			uuid_t		bb_uuid;
-			__be64		bb_owner;
-			__le32		bb_crc;
-			__be32		bb_pad; /* padding for alignment */
-		} l;			/* long form pointers */
-	} bb_u;				/* rest */
-};
-
-#define XFS_BTREE_SBLOCK_LEN	16	/* size of a short form block */
-#define XFS_BTREE_LBLOCK_LEN	24	/* size of a long form block */
-
-/* sizes of CRC enabled btree blocks */
-#define XFS_BTREE_SBLOCK_CRC_LEN	(XFS_BTREE_SBLOCK_LEN + 40)
-#define XFS_BTREE_LBLOCK_CRC_LEN	(XFS_BTREE_LBLOCK_LEN + 48)
-
-#define XFS_BTREE_SBLOCK_CRC_OFF \
-	offsetof(struct xfs_btree_block, bb_u.s.bb_crc)
-#define XFS_BTREE_LBLOCK_CRC_OFF \
-	offsetof(struct xfs_btree_block, bb_u.l.bb_crc)
-
 /*
  * Generic key, ptr and record wrapper structures.
  *
@@ -118,6 +51,18 @@ union xfs_btree_rec {
 	xfs_inobt_rec_t		inobt;
 };
 
+/*
+ * This nonsense is to make -wlint happy.
+ */
+#define	XFS_LOOKUP_EQ	((xfs_lookup_t)XFS_LOOKUP_EQi)
+#define	XFS_LOOKUP_LE	((xfs_lookup_t)XFS_LOOKUP_LEi)
+#define	XFS_LOOKUP_GE	((xfs_lookup_t)XFS_LOOKUP_GEi)
+
+#define	XFS_BTNUM_BNO	((xfs_btnum_t)XFS_BTNUM_BNOi)
+#define	XFS_BTNUM_CNT	((xfs_btnum_t)XFS_BTNUM_CNTi)
+#define	XFS_BTNUM_BMAP	((xfs_btnum_t)XFS_BTNUM_BMAPi)
+#define	XFS_BTNUM_INO	((xfs_btnum_t)XFS_BTNUM_INOi)
+
 /*
  * For logging record fields.
  */
diff --git a/fs/xfs/xfs_buf_item.h b/fs/xfs/xfs_buf_item.h
index db6371087fe8..3f3455a41510 100644
--- a/fs/xfs/xfs_buf_item.h
+++ b/fs/xfs/xfs_buf_item.h
@@ -71,10 +71,6 @@ void	xfs_buf_attach_iodone(struct xfs_buf *,
 void	xfs_buf_iodone_callbacks(struct xfs_buf *);
 void	xfs_buf_iodone(struct xfs_buf *, struct xfs_log_item *);
 
-void	xfs_trans_buf_set_type(struct xfs_trans *, struct xfs_buf *,
-			       enum xfs_blft);
-void	xfs_trans_buf_copy_type(struct xfs_buf *dst_bp, struct xfs_buf *src_bp);
-
 extern kmem_zone_t	*xfs_buf_item_zone;
 
 #endif	/* __XFS_BUF_ITEM_H__ */
diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index 377011195975..eb65c546ffd8 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -28,10 +28,8 @@
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
 #include "xfs_da_btree.h"
-#include "xfs_bmap_btree.h"
 #include "xfs_dir2.h"
 #include "xfs_dir2_priv.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_trans.h"
 #include "xfs_inode_item.h"
diff --git a/fs/xfs/xfs_dir2.c b/fs/xfs/xfs_dir2.c
index cef16615f761..38bf9324302c 100644
--- a/fs/xfs/xfs_dir2.c
+++ b/fs/xfs/xfs_dir2.c
@@ -17,6 +17,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_inum.h"
@@ -25,9 +26,6 @@
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
 #include "xfs_da_btree.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_trans.h"
 #include "xfs_inode_item.h"
@@ -36,6 +34,7 @@
 #include "xfs_dir2_priv.h"
 #include "xfs_error.h"
 #include "xfs_trace.h"
+#include "xfs_dinode.h"
 
 struct xfs_name xfs_name_dotdot = { (unsigned char *)"..", 2, XFS_DIR3_FT_DIR };
 
diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c
index 6c7cd3ce9e72..9f3f83a5e2da 100644
--- a/fs/xfs/xfs_dir2_block.c
+++ b/fs/xfs/xfs_dir2_block.c
@@ -18,6 +18,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
@@ -25,8 +26,6 @@
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
 #include "xfs_da_btree.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_trans.h"
 #include "xfs_inode_item.h"
@@ -37,6 +36,7 @@
 #include "xfs_error.h"
 #include "xfs_trace.h"
 #include "xfs_cksum.h"
+#include "xfs_dinode.h"
 
 /*
  * Local function prototypes.
diff --git a/fs/xfs/xfs_dir2_data.c b/fs/xfs/xfs_dir2_data.c
index 3f7edddb8eff..ccfeb4d8376a 100644
--- a/fs/xfs/xfs_dir2_data.c
+++ b/fs/xfs/xfs_dir2_data.c
@@ -18,6 +18,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
@@ -25,8 +26,6 @@
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
 #include "xfs_da_btree.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_dir2.h"
 #include "xfs_dir2_priv.h"
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
index 44fe4b83ac9b..51fdc11a1e2c 100644
--- a/fs/xfs/xfs_dir2_leaf.c
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -18,16 +18,14 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
-#include "xfs_bit.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
 #include "xfs_da_btree.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_bmap.h"
 #include "xfs_dir2.h"
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index 7836f048102e..b8381646b8af 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -18,6 +18,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
@@ -25,8 +26,6 @@
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
 #include "xfs_da_btree.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_bmap.h"
 #include "xfs_dir2.h"
diff --git a/fs/xfs/xfs_dir2_readdir.c b/fs/xfs/xfs_dir2_readdir.c
index 048d582525cf..45c9ce8cdb28 100644
--- a/fs/xfs/xfs_dir2_readdir.c
+++ b/fs/xfs/xfs_dir2_readdir.c
@@ -18,6 +18,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_bit.h"
@@ -26,8 +27,6 @@
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
 #include "xfs_da_btree.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_dir2.h"
 #include "xfs_dir2_priv.h"
@@ -35,6 +34,7 @@
 #include "xfs_trace.h"
 #include "xfs_bmap.h"
 #include "xfs_trans.h"
+#include "xfs_dinode.h"
 
 /*
  * Directory file type support functions
diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c
index ac3bb58b58b9..8811ee5eaec6 100644
--- a/fs/xfs/xfs_dir2_sf.c
+++ b/fs/xfs/xfs_dir2_sf.c
@@ -17,6 +17,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
@@ -24,8 +25,6 @@
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
 #include "xfs_da_btree.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_trans.h"
 #include "xfs_inode_item.h"
@@ -33,6 +32,7 @@
 #include "xfs_dir2.h"
 #include "xfs_dir2_priv.h"
 #include "xfs_trace.h"
+#include "xfs_dinode.h"
 
 /*
  * Prototypes for internal functions.
diff --git a/fs/xfs/xfs_discard.c b/fs/xfs/xfs_discard.c
index d38f34cecb40..8367d6dc18c9 100644
--- a/fs/xfs/xfs_discard.c
+++ b/fs/xfs/xfs_discard.c
@@ -23,11 +23,9 @@
 #include "xfs_ag.h"
 #include "xfs_mount.h"
 #include "xfs_quota.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_btree.h"
 #include "xfs_inode.h"
+#include "xfs_btree.h"
+#include "xfs_alloc_btree.h"
 #include "xfs_alloc.h"
 #include "xfs_error.h"
 #include "xfs_extent_busy.h"
diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c
index 47a815d4a345..6b1e695caf0e 100644
--- a/fs/xfs/xfs_dquot.c
+++ b/fs/xfs/xfs_dquot.c
@@ -25,16 +25,12 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
 #include "xfs_inode.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
 #include "xfs_alloc.h"
 #include "xfs_quota.h"
-#include "xfs_rtalloc.h"
 #include "xfs_error.h"
-#include "xfs_itable.h"
-#include "xfs_attr.h"
 #include "xfs_trans.h"
 #include "xfs_buf_item.h"
 #include "xfs_trans_space.h"
@@ -43,6 +39,7 @@
 #include "xfs_cksum.h"
 #include "xfs_trace.h"
 #include "xfs_log.h"
+#include "xfs_bmap_btree.h"
 
 /*
  * Lock order:
diff --git a/fs/xfs/xfs_dquot_buf.c b/fs/xfs/xfs_dquot_buf.c
index 3e84b3a57f57..aaaf41b29869 100644
--- a/fs/xfs/xfs_dquot_buf.c
+++ b/fs/xfs/xfs_dquot_buf.c
@@ -21,11 +21,9 @@
 #include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
-#include "xfs_bit.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
 #include "xfs_inode.h"
 #include "xfs_quota.h"
 #include "xfs_trans.h"
diff --git a/fs/xfs/xfs_dquot_item.c b/fs/xfs/xfs_dquot_item.c
index f8a47f77c3fa..92e5f62eefc6 100644
--- a/fs/xfs/xfs_dquot_item.c
+++ b/fs/xfs/xfs_dquot_item.c
@@ -22,16 +22,10 @@
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_alloc.h"
-#include "xfs_quota.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
 #include "xfs_inode.h"
-#include "xfs_bmap.h"
-#include "xfs_rtalloc.h"
+#include "xfs_quota.h"
 #include "xfs_error.h"
-#include "xfs_itable.h"
-#include "xfs_attr.h"
 #include "xfs_trans.h"
 #include "xfs_buf_item.h"
 #include "xfs_trans_priv.h"
diff --git a/fs/xfs/xfs_error.c b/fs/xfs/xfs_error.c
index d6c188cc7d43..9995b807d627 100644
--- a/fs/xfs/xfs_error.c
+++ b/fs/xfs/xfs_error.c
@@ -16,15 +16,13 @@
  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 #include "xfs.h"
+#include "xfs_format.h"
 #include "xfs_fs.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_dinode.h"
-#include "xfs_inode.h"
 #include "xfs_error.h"
 
 #ifdef DEBUG
diff --git a/fs/xfs/xfs_export.c b/fs/xfs/xfs_export.c
index 8502aee8e65d..1399e187d425 100644
--- a/fs/xfs/xfs_export.c
+++ b/fs/xfs/xfs_export.c
@@ -16,6 +16,7 @@
  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 #include "xfs.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
@@ -24,7 +25,6 @@
 #include "xfs_da_format.h"
 #include "xfs_dir2.h"
 #include "xfs_export.h"
-#include "xfs_bmap_btree.h"
 #include "xfs_inode.h"
 #include "xfs_trans.h"
 #include "xfs_inode_item.h"
diff --git a/fs/xfs/xfs_extent_busy.c b/fs/xfs/xfs_extent_busy.c
index de462640606f..fd22f69049d4 100644
--- a/fs/xfs/xfs_extent_busy.c
+++ b/fs/xfs/xfs_extent_busy.c
@@ -26,9 +26,7 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
 #include "xfs_alloc.h"
-#include "xfs_inode.h"
 #include "xfs_extent_busy.h"
 #include "xfs_trace.h"
 #include "xfs_trans.h"
diff --git a/fs/xfs/xfs_extent_busy.h b/fs/xfs/xfs_extent_busy.h
index 985412d65ba5..bfff284d2dcc 100644
--- a/fs/xfs/xfs_extent_busy.h
+++ b/fs/xfs/xfs_extent_busy.h
@@ -20,6 +20,10 @@
 #ifndef __XFS_EXTENT_BUSY_H__
 #define	__XFS_EXTENT_BUSY_H__
 
+struct xfs_mount;
+struct xfs_trans;
+struct xfs_alloc_arg;
+
 /*
  * Busy block/extent entry.  Indexed by a rbtree in perag to mark blocks that
  * have been freed but whose transactions aren't committed to disk yet.
diff --git a/fs/xfs/xfs_file.c b/fs/xfs/xfs_file.c
index 8b43bfa023af..52c91e143725 100644
--- a/fs/xfs/xfs_file.c
+++ b/fs/xfs/xfs_file.c
@@ -18,6 +18,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_shared.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
@@ -25,9 +26,6 @@
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
 #include "xfs_da_btree.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_trans.h"
 #include "xfs_inode_item.h"
@@ -39,6 +37,7 @@
 #include "xfs_ioctl.h"
 #include "xfs_trace.h"
 #include "xfs_log.h"
+#include "xfs_dinode.h"
 
 #include <linux/aio.h>
 #include <linux/dcache.h>
diff --git a/fs/xfs/xfs_filestream.c b/fs/xfs/xfs_filestream.c
index 7f2c3c1c8ba4..12b6e7701985 100644
--- a/fs/xfs/xfs_filestream.c
+++ b/fs/xfs/xfs_filestream.c
@@ -16,19 +16,19 @@
  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 #include "xfs.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_ag.h"
 #include "xfs_sb.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
 #include "xfs_inum.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
 #include "xfs_alloc.h"
 #include "xfs_mru_cache.h"
+#include "xfs_dinode.h"
 #include "xfs_filestream.h"
 #include "xfs_trace.h"
 
diff --git a/fs/xfs/xfs_format.h b/fs/xfs/xfs_format.h
index a790428f3bf4..b6ab5a3cfa12 100644
--- a/fs/xfs/xfs_format.h
+++ b/fs/xfs/xfs_format.h
@@ -156,4 +156,259 @@ struct xfs_dsymlink_hdr {
 	((bufsize) - (xfs_sb_version_hascrc(&(mp)->m_sb) ? \
 			sizeof(struct xfs_dsymlink_hdr) : 0))
 
+
+/*
+ * Allocation Btree format definitions
+ *
+ * There are two on-disk btrees, one sorted by blockno and one sorted
+ * by blockcount and blockno.  All blocks look the same to make the code
+ * simpler; if we have time later, we'll make the optimizations.
+ */
+#define	XFS_ABTB_MAGIC		0x41425442	/* 'ABTB' for bno tree */
+#define	XFS_ABTB_CRC_MAGIC	0x41423342	/* 'AB3B' */
+#define	XFS_ABTC_MAGIC		0x41425443	/* 'ABTC' for cnt tree */
+#define	XFS_ABTC_CRC_MAGIC	0x41423343	/* 'AB3C' */
+
+/*
+ * Data record/key structure
+ */
+typedef struct xfs_alloc_rec {
+	__be32		ar_startblock;	/* starting block number */
+	__be32		ar_blockcount;	/* count of free blocks */
+} xfs_alloc_rec_t, xfs_alloc_key_t;
+
+typedef struct xfs_alloc_rec_incore {
+	xfs_agblock_t	ar_startblock;	/* starting block number */
+	xfs_extlen_t	ar_blockcount;	/* count of free blocks */
+} xfs_alloc_rec_incore_t;
+
+/* btree pointer type */
+typedef __be32 xfs_alloc_ptr_t;
+
+/*
+ * Block numbers in the AG:
+ * SB is sector 0, AGF is sector 1, AGI is sector 2, AGFL is sector 3.
+ */
+#define	XFS_BNO_BLOCK(mp)	((xfs_agblock_t)(XFS_AGFL_BLOCK(mp) + 1))
+#define	XFS_CNT_BLOCK(mp)	((xfs_agblock_t)(XFS_BNO_BLOCK(mp) + 1))
+
+
+/*
+ * Inode Allocation Btree format definitions
+ *
+ * There is a btree for the inode map per allocation group.
+ */
+#define	XFS_IBT_MAGIC		0x49414254	/* 'IABT' */
+#define	XFS_IBT_CRC_MAGIC	0x49414233	/* 'IAB3' */
+
+typedef	__uint64_t	xfs_inofree_t;
+#define	XFS_INODES_PER_CHUNK		(NBBY * sizeof(xfs_inofree_t))
+#define	XFS_INODES_PER_CHUNK_LOG	(XFS_NBBYLOG + 3)
+#define	XFS_INOBT_ALL_FREE		((xfs_inofree_t)-1)
+#define	XFS_INOBT_MASK(i)		((xfs_inofree_t)1 << (i))
+
+static inline xfs_inofree_t xfs_inobt_maskn(int i, int n)
+{
+	return ((n >= XFS_INODES_PER_CHUNK ? 0 : XFS_INOBT_MASK(n)) - 1) << i;
+}
+
+/*
+ * Data record structure
+ */
+typedef struct xfs_inobt_rec {
+	__be32		ir_startino;	/* starting inode number */
+	__be32		ir_freecount;	/* count of free inodes (set bits) */
+	__be64		ir_free;	/* free inode mask */
+} xfs_inobt_rec_t;
+
+typedef struct xfs_inobt_rec_incore {
+	xfs_agino_t	ir_startino;	/* starting inode number */
+	__int32_t	ir_freecount;	/* count of free inodes (set bits) */
+	xfs_inofree_t	ir_free;	/* free inode mask */
+} xfs_inobt_rec_incore_t;
+
+
+/*
+ * Key structure
+ */
+typedef struct xfs_inobt_key {
+	__be32		ir_startino;	/* starting inode number */
+} xfs_inobt_key_t;
+
+/* btree pointer type */
+typedef __be32 xfs_inobt_ptr_t;
+
+/*
+ * block numbers in the AG.
+ */
+#define	XFS_IBT_BLOCK(mp)		((xfs_agblock_t)(XFS_CNT_BLOCK(mp) + 1))
+#define	XFS_PREALLOC_BLOCKS(mp)		((xfs_agblock_t)(XFS_IBT_BLOCK(mp) + 1))
+
+
+
+/*
+ * BMAP Btree format definitions
+ *
+ * This includes both the root block definition that sits inside an inode fork
+ * and the record/pointer formats for the leaf/node in the blocks.
+ */
+#define XFS_BMAP_MAGIC		0x424d4150	/* 'BMAP' */
+#define XFS_BMAP_CRC_MAGIC	0x424d4133	/* 'BMA3' */
+
+/*
+ * Bmap root header, on-disk form only.
+ */
+typedef struct xfs_bmdr_block {
+	__be16		bb_level;	/* 0 is a leaf */
+	__be16		bb_numrecs;	/* current # of data records */
+} xfs_bmdr_block_t;
+
+/*
+ * Bmap btree record and extent descriptor.
+ *  l0:63 is an extent flag (value 1 indicates non-normal).
+ *  l0:9-62 are startoff.
+ *  l0:0-8 and l1:21-63 are startblock.
+ *  l1:0-20 are blockcount.
+ */
+#define BMBT_EXNTFLAG_BITLEN	1
+#define BMBT_STARTOFF_BITLEN	54
+#define BMBT_STARTBLOCK_BITLEN	52
+#define BMBT_BLOCKCOUNT_BITLEN	21
+
+typedef struct xfs_bmbt_rec {
+	__be64			l0, l1;
+} xfs_bmbt_rec_t;
+
+typedef __uint64_t	xfs_bmbt_rec_base_t;	/* use this for casts */
+typedef xfs_bmbt_rec_t xfs_bmdr_rec_t;
+
+typedef struct xfs_bmbt_rec_host {
+	__uint64_t		l0, l1;
+} xfs_bmbt_rec_host_t;
+
+/*
+ * Values and macros for delayed-allocation startblock fields.
+ */
+#define STARTBLOCKVALBITS	17
+#define STARTBLOCKMASKBITS	(15 + XFS_BIG_BLKNOS * 20)
+#define DSTARTBLOCKMASKBITS	(15 + 20)
+#define STARTBLOCKMASK		\
+	(((((xfs_fsblock_t)1) << STARTBLOCKMASKBITS) - 1) << STARTBLOCKVALBITS)
+#define DSTARTBLOCKMASK		\
+	(((((xfs_dfsbno_t)1) << DSTARTBLOCKMASKBITS) - 1) << STARTBLOCKVALBITS)
+
+static inline int isnullstartblock(xfs_fsblock_t x)
+{
+	return ((x) & STARTBLOCKMASK) == STARTBLOCKMASK;
+}
+
+static inline int isnulldstartblock(xfs_dfsbno_t x)
+{
+	return ((x) & DSTARTBLOCKMASK) == DSTARTBLOCKMASK;
+}
+
+static inline xfs_fsblock_t nullstartblock(int k)
+{
+	ASSERT(k < (1 << STARTBLOCKVALBITS));
+	return STARTBLOCKMASK | (k);
+}
+
+static inline xfs_filblks_t startblockval(xfs_fsblock_t x)
+{
+	return (xfs_filblks_t)((x) & ~STARTBLOCKMASK);
+}
+
+/*
+ * Possible extent formats.
+ */
+typedef enum {
+	XFS_EXTFMT_NOSTATE = 0,
+	XFS_EXTFMT_HASSTATE
+} xfs_exntfmt_t;
+
+/*
+ * Possible extent states.
+ */
+typedef enum {
+	XFS_EXT_NORM, XFS_EXT_UNWRITTEN,
+	XFS_EXT_DMAPI_OFFLINE, XFS_EXT_INVALID
+} xfs_exntst_t;
+
+/*
+ * Incore version of above.
+ */
+typedef struct xfs_bmbt_irec
+{
+	xfs_fileoff_t	br_startoff;	/* starting file offset */
+	xfs_fsblock_t	br_startblock;	/* starting block number */
+	xfs_filblks_t	br_blockcount;	/* number of blocks */
+	xfs_exntst_t	br_state;	/* extent state */
+} xfs_bmbt_irec_t;
+
+/*
+ * Key structure for non-leaf levels of the tree.
+ */
+typedef struct xfs_bmbt_key {
+	__be64		br_startoff;	/* starting file offset */
+} xfs_bmbt_key_t, xfs_bmdr_key_t;
+
+/* btree pointer type */
+typedef __be64 xfs_bmbt_ptr_t, xfs_bmdr_ptr_t;
+
+
+/*
+ * Generic Btree block format definitions
+ *
+ * This is a combination of the actual format used on disk for short and long
+ * format btrees.  The first three fields are shared by both format, but the
+ * pointers are different and should be used with care.
+ *
+ * To get the size of the actual short or long form headers please use the size
+ * macros below.  Never use sizeof(xfs_btree_block).
+ *
+ * The blkno, crc, lsn, owner and uuid fields are only available in filesystems
+ * with the crc feature bit, and all accesses to them must be conditional on
+ * that flag.
+ */
+struct xfs_btree_block {
+	__be32		bb_magic;	/* magic number for block type */
+	__be16		bb_level;	/* 0 is a leaf */
+	__be16		bb_numrecs;	/* current # of data records */
+	union {
+		struct {
+			__be32		bb_leftsib;
+			__be32		bb_rightsib;
+
+			__be64		bb_blkno;
+			__be64		bb_lsn;
+			uuid_t		bb_uuid;
+			__be32		bb_owner;
+			__le32		bb_crc;
+		} s;			/* short form pointers */
+		struct	{
+			__be64		bb_leftsib;
+			__be64		bb_rightsib;
+
+			__be64		bb_blkno;
+			__be64		bb_lsn;
+			uuid_t		bb_uuid;
+			__be64		bb_owner;
+			__le32		bb_crc;
+			__be32		bb_pad; /* padding for alignment */
+		} l;			/* long form pointers */
+	} bb_u;				/* rest */
+};
+
+#define XFS_BTREE_SBLOCK_LEN	16	/* size of a short form block */
+#define XFS_BTREE_LBLOCK_LEN	24	/* size of a long form block */
+
+/* sizes of CRC enabled btree blocks */
+#define XFS_BTREE_SBLOCK_CRC_LEN	(XFS_BTREE_SBLOCK_LEN + 40)
+#define XFS_BTREE_LBLOCK_CRC_LEN	(XFS_BTREE_LBLOCK_LEN + 48)
+
+#define XFS_BTREE_SBLOCK_CRC_OFF \
+	offsetof(struct xfs_btree_block, bb_u.s.bb_crc)
+#define XFS_BTREE_LBLOCK_CRC_OFF \
+	offsetof(struct xfs_btree_block, bb_u.l.bb_crc)
+
 #endif /* __XFS_FORMAT_H__ */
diff --git a/fs/xfs/xfs_fsops.c b/fs/xfs/xfs_fsops.c
index ceaec3165921..a6e54b3319bd 100644
--- a/fs/xfs/xfs_fsops.c
+++ b/fs/xfs/xfs_fsops.c
@@ -18,30 +18,28 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_shared.h"
-#include "xfs_log_format.h"
 #include "xfs_format.h"
+#include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_trans.h"
 #include "xfs_inode_item.h"
-#include "xfs_btree.h"
 #include "xfs_error.h"
+#include "xfs_btree.h"
+#include "xfs_alloc_btree.h"
 #include "xfs_alloc.h"
 #include "xfs_ialloc.h"
 #include "xfs_fsops.h"
 #include "xfs_itable.h"
 #include "xfs_trans_space.h"
 #include "xfs_rtalloc.h"
-#include "xfs_filestream.h"
 #include "xfs_trace.h"
 #include "xfs_log.h"
+#include "xfs_dinode.h"
+#include "xfs_filestream.h"
 
 /*
  * File system operations
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index c973ff8c4a7c..14d732f61a41 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -26,13 +26,10 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
 #include "xfs_ialloc.h"
+#include "xfs_ialloc_btree.h"
 #include "xfs_alloc.h"
 #include "xfs_rtalloc.h"
 #include "xfs_error.h"
@@ -42,6 +39,7 @@
 #include "xfs_buf_item.h"
 #include "xfs_icreate_item.h"
 #include "xfs_icache.h"
+#include "xfs_dinode.h"
 
 
 /*
diff --git a/fs/xfs/xfs_ialloc.h b/fs/xfs/xfs_ialloc.h
index 155779803d67..a8f76a5ff418 100644
--- a/fs/xfs/xfs_ialloc.h
+++ b/fs/xfs/xfs_ialloc.h
@@ -23,6 +23,7 @@ struct xfs_dinode;
 struct xfs_imap;
 struct xfs_mount;
 struct xfs_trans;
+struct xfs_btree_cur;
 
 /*
  * Allocation parameters for inode allocation.
@@ -42,7 +43,7 @@ struct xfs_trans;
 static inline struct xfs_dinode *
 xfs_make_iptr(struct xfs_mount *mp, struct xfs_buf *b, int o)
 {
-	return (xfs_dinode_t *)
+	return (struct xfs_dinode *)
 		(xfs_buf_offset(b, o << (mp)->m_sb.sb_inodelog));
 }
 
diff --git a/fs/xfs/xfs_ialloc_btree.c b/fs/xfs/xfs_ialloc_btree.c
index 2a0b6158e4c4..1fa142dc86cb 100644
--- a/fs/xfs/xfs_ialloc_btree.c
+++ b/fs/xfs/xfs_ialloc_btree.c
@@ -17,19 +17,17 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_bit.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
 #include "xfs_ialloc.h"
+#include "xfs_ialloc_btree.h"
 #include "xfs_alloc.h"
 #include "xfs_error.h"
 #include "xfs_trace.h"
diff --git a/fs/xfs/xfs_ialloc_btree.h b/fs/xfs/xfs_ialloc_btree.h
index cfbfe461abbc..f38b22011c4e 100644
--- a/fs/xfs/xfs_ialloc_btree.h
+++ b/fs/xfs/xfs_ialloc_btree.h
@@ -26,55 +26,6 @@ struct xfs_buf;
 struct xfs_btree_cur;
 struct xfs_mount;
 
-/*
- * There is a btree for the inode map per allocation group.
- */
-#define	XFS_IBT_MAGIC		0x49414254	/* 'IABT' */
-#define	XFS_IBT_CRC_MAGIC	0x49414233	/* 'IAB3' */
-
-typedef	__uint64_t	xfs_inofree_t;
-#define	XFS_INODES_PER_CHUNK		(NBBY * sizeof(xfs_inofree_t))
-#define	XFS_INODES_PER_CHUNK_LOG	(XFS_NBBYLOG + 3)
-#define	XFS_INOBT_ALL_FREE		((xfs_inofree_t)-1)
-#define	XFS_INOBT_MASK(i)		((xfs_inofree_t)1 << (i))
-
-static inline xfs_inofree_t xfs_inobt_maskn(int i, int n)
-{
-	return ((n >= XFS_INODES_PER_CHUNK ? 0 : XFS_INOBT_MASK(n)) - 1) << i;
-}
-
-/*
- * Data record structure
- */
-typedef struct xfs_inobt_rec {
-	__be32		ir_startino;	/* starting inode number */
-	__be32		ir_freecount;	/* count of free inodes (set bits) */
-	__be64		ir_free;	/* free inode mask */
-} xfs_inobt_rec_t;
-
-typedef struct xfs_inobt_rec_incore {
-	xfs_agino_t	ir_startino;	/* starting inode number */
-	__int32_t	ir_freecount;	/* count of free inodes (set bits) */
-	xfs_inofree_t	ir_free;	/* free inode mask */
-} xfs_inobt_rec_incore_t;
-
-
-/*
- * Key structure
- */
-typedef struct xfs_inobt_key {
-	__be32		ir_startino;	/* starting inode number */
-} xfs_inobt_key_t;
-
-/* btree pointer type */
-typedef __be32 xfs_inobt_ptr_t;
-
-/*
- * block numbers in the AG.
- */
-#define	XFS_IBT_BLOCK(mp)		((xfs_agblock_t)(XFS_CNT_BLOCK(mp) + 1))
-#define	XFS_PREALLOC_BLOCKS(mp)		((xfs_agblock_t)(XFS_IBT_BLOCK(mp) + 1))
-
 /*
  * Btree block header size depends on a superblock flag.
  */
diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index 6db11556731d..98d35244eecc 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -24,17 +24,13 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
 #include "xfs_inode.h"
-#include "xfs_dinode.h"
 #include "xfs_error.h"
-#include "xfs_filestream.h"
 #include "xfs_trans.h"
 #include "xfs_trans_priv.h"
 #include "xfs_inode_item.h"
 #include "xfs_quota.h"
 #include "xfs_trace.h"
-#include "xfs_fsops.h"
 #include "xfs_icache.h"
 #include "xfs_bmap_util.h"
 
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index f0440dcb5d8c..326b94dbe159 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -27,27 +27,22 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_inode.h"
 #include "xfs_da_format.h"
 #include "xfs_da_btree.h"
 #include "xfs_dir2.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
 #include "xfs_attr_sf.h"
 #include "xfs_attr.h"
-#include "xfs_dinode.h"
-#include "xfs_inode.h"
 #include "xfs_trans_space.h"
 #include "xfs_trans.h"
 #include "xfs_buf_item.h"
 #include "xfs_inode_item.h"
-#include "xfs_btree.h"
-#include "xfs_alloc.h"
 #include "xfs_ialloc.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
 #include "xfs_error.h"
 #include "xfs_quota.h"
+#include "xfs_dinode.h"
 #include "xfs_filestream.h"
 #include "xfs_cksum.h"
 #include "xfs_trace.h"
@@ -55,6 +50,7 @@
 #include "xfs_symlink.h"
 #include "xfs_trans_priv.h"
 #include "xfs_log.h"
+#include "xfs_bmap_btree.h"
 
 kmem_zone_t *xfs_inode_zone;
 
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index cce62ce1a73a..66675877f38c 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -24,7 +24,6 @@
 /*
  * Kernel only inode definitions
  */
-
 struct xfs_dinode;
 struct xfs_inode;
 struct xfs_buf;
diff --git a/fs/xfs/xfs_inode_buf.c b/fs/xfs/xfs_inode_buf.c
index c0f974b6cd46..4fc9f39dd89e 100644
--- a/fs/xfs/xfs_inode_buf.c
+++ b/fs/xfs/xfs_inode_buf.c
@@ -24,15 +24,13 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_error.h"
 #include "xfs_cksum.h"
 #include "xfs_icache.h"
-#include "xfs_ialloc.h"
 #include "xfs_trans.h"
+#include "xfs_ialloc.h"
+#include "xfs_dinode.h"
 
 /*
  * Check that none of the inode's in the buffer have a next
diff --git a/fs/xfs/xfs_inode_fork.c b/fs/xfs/xfs_inode_fork.c
index b89b58a3a350..22c9837c5d4b 100644
--- a/fs/xfs/xfs_inode_fork.c
+++ b/fs/xfs/xfs_inode_fork.c
@@ -26,25 +26,15 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_attr_sf.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_trans.h"
-#include "xfs_buf_item.h"
 #include "xfs_inode_item.h"
-#include "xfs_btree.h"
-#include "xfs_alloc.h"
-#include "xfs_ialloc.h"
+#include "xfs_bmap_btree.h"
 #include "xfs_bmap.h"
 #include "xfs_error.h"
-#include "xfs_quota.h"
-#include "xfs_filestream.h"
-#include "xfs_cksum.h"
 #include "xfs_trace.h"
-#include "xfs_icache.h"
+#include "xfs_attr_sf.h"
+#include "xfs_dinode.h"
 
 kmem_zone_t *xfs_ifork_zone;
 
diff --git a/fs/xfs/xfs_inode_fork.h b/fs/xfs/xfs_inode_fork.h
index 28661a0d9058..eb329a1ea888 100644
--- a/fs/xfs/xfs_inode_fork.h
+++ b/fs/xfs/xfs_inode_fork.h
@@ -19,6 +19,7 @@
 #define	__XFS_INODE_FORK_H__
 
 struct xfs_inode_log_item;
+struct xfs_dinode;
 
 /*
  * The following xfs_ext_irec_t struct introduces a second (top) level
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index 9f8e85ef2681..7c0d391f9a6e 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -17,19 +17,19 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_trans.h"
 #include "xfs_inode_item.h"
 #include "xfs_error.h"
 #include "xfs_trace.h"
 #include "xfs_trans_priv.h"
+#include "xfs_dinode.h"
 
 
 kmem_zone_t	*xfs_ili_zone;		/* inode log item zone */
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index ea65a73d49ba..4d613401a5e0 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -23,28 +23,25 @@
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_alloc.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_ioctl.h"
+#include "xfs_alloc.h"
 #include "xfs_rtalloc.h"
 #include "xfs_itable.h"
 #include "xfs_error.h"
 #include "xfs_attr.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
-#include "xfs_trans.h"
-#include "xfs_buf_item.h"
 #include "xfs_fsops.h"
 #include "xfs_discard.h"
 #include "xfs_quota.h"
-#include "xfs_inode_item.h"
 #include "xfs_export.h"
 #include "xfs_trace.h"
 #include "xfs_icache.h"
 #include "xfs_symlink.h"
+#include "xfs_dinode.h"
+#include "xfs_trans.h"
 
 #include <linux/capability.h>
 #include <linux/dcache.h>
diff --git a/fs/xfs/xfs_ioctl32.c b/fs/xfs/xfs_ioctl32.c
index 1be3333b260c..e8fb1231db81 100644
--- a/fs/xfs/xfs_ioctl32.c
+++ b/fs/xfs/xfs_ioctl32.c
@@ -22,14 +22,13 @@
 #include <asm/uaccess.h>
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
 #include "xfs_vnode.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_itable.h"
 #include "xfs_error.h"
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index adadf80709b8..22d1cbea283d 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -24,29 +24,21 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
-#include "xfs_trans.h"
-#include "xfs_inode_item.h"
-#include "xfs_alloc.h"
-#include "xfs_quota.h"
 #include "xfs_btree.h"
+#include "xfs_bmap_btree.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
-#include "xfs_rtalloc.h"
 #include "xfs_error.h"
-#include "xfs_itable.h"
-#include "xfs_attr.h"
-#include "xfs_buf_item.h"
+#include "xfs_trans.h"
 #include "xfs_trans_space.h"
 #include "xfs_iomap.h"
 #include "xfs_trace.h"
 #include "xfs_icache.h"
+#include "xfs_quota.h"
 #include "xfs_dquot_item.h"
 #include "xfs_dquot.h"
+#include "xfs_dinode.h"
 
 
 #define XFS_WRITEIO_ALIGN(mp,off)	(((off) >> mp->m_writeio_log) \
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 3f2ae19c8ca0..718b62b0fe05 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -25,26 +25,20 @@
 #include "xfs_ag.h"
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
 #include "xfs_acl.h"
-#include "xfs_alloc.h"
 #include "xfs_quota.h"
-#include "xfs_rtalloc.h"
 #include "xfs_error.h"
-#include "xfs_itable.h"
 #include "xfs_attr.h"
 #include "xfs_trans.h"
-#include "xfs_buf_item.h"
-#include "xfs_inode_item.h"
 #include "xfs_trace.h"
 #include "xfs_icache.h"
 #include "xfs_symlink.h"
 #include "xfs_da_btree.h"
 #include "xfs_dir2_priv.h"
+#include "xfs_dinode.h"
 
 #include <linux/capability.h>
 #include <linux/xattr.h>
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
index 964b1caae085..c237ad15d500 100644
--- a/fs/xfs/xfs_itable.c
+++ b/fs/xfs/xfs_itable.c
@@ -18,23 +18,22 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_shared.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_inum.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
+#include "xfs_btree.h"
 #include "xfs_ialloc.h"
+#include "xfs_ialloc_btree.h"
 #include "xfs_itable.h"
 #include "xfs_error.h"
-#include "xfs_btree.h"
 #include "xfs_trace.h"
 #include "xfs_icache.h"
+#include "xfs_dinode.h"
 
 STATIC int
 xfs_internal_inum(
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 5275ad886971..e523396753c5 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -18,6 +18,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_shared.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
@@ -28,12 +29,7 @@
 #include "xfs_trans_priv.h"
 #include "xfs_log.h"
 #include "xfs_log_priv.h"
-#include "xfs_buf_item.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
 #include "xfs_log_recover.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_trace.h"
 #include "xfs_fsops.h"
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 832ba5d5eb3a..b6b669df40f3 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -27,29 +27,23 @@
 #include "xfs_ag.h"
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
-#include "xfs_error.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_trans.h"
-#include "xfs_inode_item.h"
-#include "xfs_alloc.h"
-#include "xfs_ialloc.h"
 #include "xfs_log.h"
 #include "xfs_log_priv.h"
 #include "xfs_log_recover.h"
+#include "xfs_inode_item.h"
 #include "xfs_extfree_item.h"
 #include "xfs_trans_priv.h"
+#include "xfs_alloc.h"
+#include "xfs_ialloc.h"
 #include "xfs_quota.h"
 #include "xfs_cksum.h"
 #include "xfs_trace.h"
 #include "xfs_icache.h"
-
-/* Need all the magic numbers and buffer ops structures from these headers */
-#include "xfs_da_btree.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_dinode.h"
+#include "xfs_error.h"
 #include "xfs_dir2.h"
 
 #define BLK_AVG(blk1, blk2)	((blk1+blk2) >> 1)
diff --git a/fs/xfs/xfs_log_rlimit.c b/fs/xfs/xfs_log_rlimit.c
index 3749bc1c00a4..2af1a0a4d0f1 100644
--- a/fs/xfs/xfs_log_rlimit.c
+++ b/fs/xfs/xfs_log_rlimit.c
@@ -18,6 +18,7 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_shared.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_ag.h"
@@ -25,10 +26,10 @@
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
 #include "xfs_trans_space.h"
-#include "xfs_bmap_btree.h"
 #include "xfs_inode.h"
 #include "xfs_da_btree.h"
 #include "xfs_attr_leaf.h"
+#include "xfs_bmap_btree.h"
 
 /*
  * Calculate the maximum length in bytes that would be required for a local
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 83f7810c53cd..da88f167af78 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -27,27 +27,20 @@
 #include "xfs_ag.h"
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
-#include "xfs_trans.h"
-#include "xfs_trans_priv.h"
-#include "xfs_log.h"
-#include "xfs_dir2.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
-#include "xfs_btree.h"
+#include "xfs_dir2.h"
 #include "xfs_ialloc.h"
 #include "xfs_alloc.h"
 #include "xfs_rtalloc.h"
 #include "xfs_bmap.h"
+#include "xfs_trans.h"
+#include "xfs_trans_priv.h"
+#include "xfs_log.h"
 #include "xfs_error.h"
 #include "xfs_quota.h"
 #include "xfs_fsops.h"
 #include "xfs_trace.h"
 #include "xfs_icache.h"
-#include "xfs_cksum.h"
-#include "xfs_buf_item.h"
 
 
 #ifdef HAVE_PERCPU_SB
diff --git a/fs/xfs/xfs_qm.c b/fs/xfs/xfs_qm.c
index e2f675644b4d..14a4996cfec6 100644
--- a/fs/xfs/xfs_qm.c
+++ b/fs/xfs/xfs_qm.c
@@ -17,33 +17,28 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_shared.h"
 #include "xfs_format.h"
 #include "xfs_log_format.h"
-#include "xfs_shared.h"
 #include "xfs_trans_resv.h"
 #include "xfs_bit.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_ialloc.h"
 #include "xfs_itable.h"
-#include "xfs_alloc.h"
-#include "xfs_rtalloc.h"
 #include "xfs_quota.h"
 #include "xfs_error.h"
 #include "xfs_bmap.h"
-#include "xfs_attr.h"
+#include "xfs_bmap_btree.h"
 #include "xfs_trans.h"
-#include "xfs_buf_item.h"
 #include "xfs_trans_space.h"
 #include "xfs_qm.h"
 #include "xfs_trace.h"
 #include "xfs_icache.h"
 #include "xfs_cksum.h"
+#include "xfs_dinode.h"
 
 /*
  * The global quota manager. There is only one of these for the entire
diff --git a/fs/xfs/xfs_qm_bhv.c b/fs/xfs/xfs_qm_bhv.c
index 704628961159..e9be63abd8d2 100644
--- a/fs/xfs/xfs_qm_bhv.c
+++ b/fs/xfs/xfs_qm_bhv.c
@@ -22,18 +22,11 @@
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_alloc.h"
 #include "xfs_quota.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
 #include "xfs_inode.h"
-#include "xfs_itable.h"
-#include "xfs_bmap.h"
-#include "xfs_rtalloc.h"
 #include "xfs_error.h"
-#include "xfs_attr.h"
 #include "xfs_trans.h"
-#include "xfs_buf_item.h"
 #include "xfs_qm.h"
 
 
diff --git a/fs/xfs/xfs_qm_syscalls.c b/fs/xfs/xfs_qm_syscalls.c
index ab2326aaaeda..437c9198031a 100644
--- a/fs/xfs/xfs_qm_syscalls.c
+++ b/fs/xfs/xfs_qm_syscalls.c
@@ -27,19 +27,11 @@
 #include "xfs_bit.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_alloc.h"
-#include "xfs_quota.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
 #include "xfs_inode.h"
 #include "xfs_trans.h"
-#include "xfs_inode_item.h"
-#include "xfs_itable.h"
-#include "xfs_bmap.h"
-#include "xfs_rtalloc.h"
 #include "xfs_error.h"
-#include "xfs_attr.h"
-#include "xfs_buf_item.h"
+#include "xfs_quota.h"
 #include "xfs_qm.h"
 #include "xfs_trace.h"
 #include "xfs_icache.h"
diff --git a/fs/xfs/xfs_quotaops.c b/fs/xfs/xfs_quotaops.c
index 2dd467b0b475..af33cafe69b6 100644
--- a/fs/xfs/xfs_quotaops.c
+++ b/fs/xfs/xfs_quotaops.c
@@ -22,10 +22,9 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
+#include "xfs_inode.h"
 #include "xfs_quota.h"
 #include "xfs_trans.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_inode.h"
 #include "xfs_qm.h"
 #include <linux/quota.h>
 
diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c
index 23c5ca24a02d..d5da15578185 100644
--- a/fs/xfs/xfs_rtalloc.c
+++ b/fs/xfs/xfs_rtalloc.c
@@ -25,21 +25,18 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
-#include "xfs_alloc.h"
 #include "xfs_bmap.h"
 #include "xfs_bmap_util.h"
-#include "xfs_rtalloc.h"
-#include "xfs_fsops.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_alloc.h"
 #include "xfs_error.h"
 #include "xfs_trans.h"
-#include "xfs_inode_item.h"
 #include "xfs_trans_space.h"
 #include "xfs_trace.h"
 #include "xfs_buf.h"
 #include "xfs_icache.h"
+#include "xfs_dinode.h"
 
 
 /*
diff --git a/fs/xfs/xfs_sb.c b/fs/xfs/xfs_sb.c
index 1b0a6420f1b8..05b5493d2baa 100644
--- a/fs/xfs/xfs_sb.c
+++ b/fs/xfs/xfs_sb.c
@@ -21,31 +21,21 @@
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_bit.h"
-#include "xfs_inum.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_da_format.h"
-#include "xfs_da_btree.h"
-#include "xfs_dir2.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
-#include "xfs_btree.h"
 #include "xfs_ialloc.h"
 #include "xfs_alloc.h"
-#include "xfs_rtalloc.h"
-#include "xfs_bmap.h"
 #include "xfs_error.h"
-#include "xfs_quota.h"
-#include "xfs_fsops.h"
 #include "xfs_trace.h"
 #include "xfs_cksum.h"
 #include "xfs_trans.h"
-#include "xfs_trans_priv.h"
 #include "xfs_buf_item.h"
+#include "xfs_dinode.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_alloc_btree.h"
+#include "xfs_ialloc_btree.h"
 
 /*
  * Physical superblock buffer manipulations. Shared with libxfs in userspace.
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 4e20b420ff72..4eb63ad87d7d 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -24,29 +24,18 @@
 #include "xfs_inum.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_alloc.h"
-#include "xfs_quota.h"
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
-#include "xfs_ialloc.h"
 #include "xfs_bmap.h"
-#include "xfs_rtalloc.h"
+#include "xfs_alloc.h"
 #include "xfs_error.h"
-#include "xfs_itable.h"
 #include "xfs_fsops.h"
-#include "xfs_attr.h"
 #include "xfs_trans.h"
 #include "xfs_buf_item.h"
 #include "xfs_log.h"
 #include "xfs_log_priv.h"
-#include "xfs_trans_priv.h"
-#include "xfs_filestream.h"
 #include "xfs_da_btree.h"
 #include "xfs_dir2.h"
 #include "xfs_extfree_item.h"
@@ -55,6 +44,9 @@
 #include "xfs_icache.h"
 #include "xfs_trace.h"
 #include "xfs_icreate_item.h"
+#include "xfs_dinode.h"
+#include "xfs_filestream.h"
+#include "xfs_quota.h"
 
 #include <linux/namei.h>
 #include <linux/init.h>
diff --git a/fs/xfs/xfs_symlink.c b/fs/xfs/xfs_symlink.c
index 93fc72c96fad..14e58f2c96bd 100644
--- a/fs/xfs/xfs_symlink.c
+++ b/fs/xfs/xfs_symlink.c
@@ -28,13 +28,11 @@
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
 #include "xfs_dir2.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_ialloc.h"
 #include "xfs_alloc.h"
 #include "xfs_bmap.h"
+#include "xfs_bmap_btree.h"
 #include "xfs_bmap_util.h"
 #include "xfs_error.h"
 #include "xfs_quota.h"
@@ -42,8 +40,8 @@
 #include "xfs_trace.h"
 #include "xfs_symlink.h"
 #include "xfs_trans.h"
-#include "xfs_buf_item.h"
 #include "xfs_log.h"
+#include "xfs_dinode.h"
 
 /* ----- Kernel only functions below ----- */
 STATIC int
diff --git a/fs/xfs/xfs_trace.c b/fs/xfs/xfs_trace.c
index 889bb4233323..dee3279c095e 100644
--- a/fs/xfs/xfs_trace.c
+++ b/fs/xfs/xfs_trace.c
@@ -25,10 +25,6 @@
 #include "xfs_ag.h"
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_btree.h"
 #include "xfs_da_btree.h"
@@ -49,6 +45,7 @@
 #include "xfs_dquot.h"
 #include "xfs_log_recover.h"
 #include "xfs_inode_item.h"
+#include "xfs_bmap_btree.h"
 
 /*
  * We include this last to have the helpers above available for the trace
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index 8d1595f9fd50..c812c5c060de 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -25,28 +25,14 @@
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_error.h"
-#include "xfs_da_format.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
-#include "xfs_btree.h"
-#include "xfs_ialloc.h"
-#include "xfs_alloc.h"
 #include "xfs_extent_busy.h"
-#include "xfs_bmap.h"
 #include "xfs_quota.h"
 #include "xfs_trans.h"
 #include "xfs_trans_priv.h"
-#include "xfs_trans_space.h"
-#include "xfs_qm.h"
-#include "xfs_inode_item.h"
 #include "xfs_log.h"
-#include "xfs_log_priv.h"
-#include "xfs_buf_item.h"
 #include "xfs_trace.h"
+#include "xfs_error.h"
 
 kmem_zone_t	*xfs_trans_zone;
 kmem_zone_t	*xfs_log_item_desc_zone;
diff --git a/fs/xfs/xfs_trans.h b/fs/xfs/xfs_trans.h
index 9cc5fbed4f26..9b96d35e483d 100644
--- a/fs/xfs/xfs_trans.h
+++ b/fs/xfs/xfs_trans.h
@@ -234,6 +234,11 @@ void		xfs_trans_cancel(xfs_trans_t *, int);
 int		xfs_trans_ail_init(struct xfs_mount *);
 void		xfs_trans_ail_destroy(struct xfs_mount *);
 
+void		xfs_trans_buf_set_type(struct xfs_trans *, struct xfs_buf *,
+				       enum xfs_blft);
+void		xfs_trans_buf_copy_type(struct xfs_buf *dst_bp,
+					struct xfs_buf *src_bp);
+
 extern kmem_zone_t	*xfs_trans_zone;
 extern kmem_zone_t	*xfs_log_item_desc_zone;
 
diff --git a/fs/xfs/xfs_trans_buf.c b/fs/xfs/xfs_trans_buf.c
index 6b1b993257d6..c035d11b7734 100644
--- a/fs/xfs/xfs_trans_buf.c
+++ b/fs/xfs/xfs_trans_buf.c
@@ -18,15 +18,12 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_shared.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
 #include "xfs_trans.h"
 #include "xfs_buf_item.h"
diff --git a/fs/xfs/xfs_trans_dquot.c b/fs/xfs/xfs_trans_dquot.c
index 2025f6eea4aa..cd2a10e15d3a 100644
--- a/fs/xfs/xfs_trans_dquot.c
+++ b/fs/xfs/xfs_trans_dquot.c
@@ -23,19 +23,12 @@
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
-#include "xfs_alloc.h"
-#include "xfs_quota.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
 #include "xfs_inode.h"
-#include "xfs_itable.h"
-#include "xfs_bmap.h"
-#include "xfs_rtalloc.h"
 #include "xfs_error.h"
-#include "xfs_attr.h"
 #include "xfs_trans.h"
-#include "xfs_buf_item.h"
 #include "xfs_trans_priv.h"
+#include "xfs_quota.h"
 #include "xfs_qm.h"
 
 STATIC void	xfs_trans_alloc_dqinfo(xfs_trans_t *);
diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c
index b1a0efa6b32a..1bba7f60d94c 100644
--- a/fs/xfs/xfs_trans_inode.c
+++ b/fs/xfs/xfs_trans_inode.c
@@ -18,17 +18,13 @@
 #include "xfs.h"
 #include "xfs_fs.h"
 #include "xfs_shared.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
-#include "xfs_btree.h"
 #include "xfs_trans.h"
 #include "xfs_trans_priv.h"
 #include "xfs_inode_item.h"
diff --git a/fs/xfs/xfs_trans_resv.c b/fs/xfs/xfs_trans_resv.c
index 89de046331da..d53d9f0627a7 100644
--- a/fs/xfs/xfs_trans_resv.c
+++ b/fs/xfs/xfs_trans_resv.c
@@ -26,19 +26,9 @@
 #include "xfs_ag.h"
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
-#include "xfs_error.h"
-#include "xfs_da_btree.h"
-#include "xfs_bmap_btree.h"
-#include "xfs_alloc_btree.h"
-#include "xfs_ialloc_btree.h"
-#include "xfs_dinode.h"
 #include "xfs_inode.h"
-#include "xfs_btree.h"
+#include "xfs_bmap_btree.h"
 #include "xfs_ialloc.h"
-#include "xfs_alloc.h"
-#include "xfs_extent_busy.h"
-#include "xfs_bmap.h"
-#include "xfs_bmap_util.h"
 #include "xfs_quota.h"
 #include "xfs_trans.h"
 #include "xfs_qm.h"
diff --git a/fs/xfs/xfs_xattr.c b/fs/xfs/xfs_xattr.c
index 23052992c7e2..9d479073ba41 100644
--- a/fs/xfs/xfs_xattr.c
+++ b/fs/xfs/xfs_xattr.c
@@ -17,13 +17,13 @@
  */
 
 #include "xfs.h"
+#include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
 #include "xfs_sb.h"
 #include "xfs_ag.h"
 #include "xfs_mount.h"
 #include "xfs_da_format.h"
-#include "xfs_bmap_btree.h"
 #include "xfs_inode.h"
 #include "xfs_attr.h"
 #include "xfs_attr_leaf.h"
-- 
cgit 


From c963c6193a5adaec58044e238ef23516d04e5a74 Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 15 Oct 2013 09:17:56 +1100
Subject: xfs: split xfs_rtalloc.c for userspace sanity

xfs_rtalloc.c is partially shared with userspace. Split the file up
into two parts - one that is kernel private and the other which is
wholly shared with userspace.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/Makefile       |    6 +-
 fs/xfs/xfs_rtalloc.c  | 1845 ++++++++++++-------------------------------------
 fs/xfs/xfs_rtalloc.h  |   24 +
 fs/xfs/xfs_rtbitmap.c |  973 ++++++++++++++++++++++++++
 4 files changed, 1446 insertions(+), 1402 deletions(-)
 create mode 100644 fs/xfs/xfs_rtbitmap.c

diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile
index 08f11bbf56ae..33a69fabfd83 100644
--- a/fs/xfs/Makefile
+++ b/fs/xfs/Makefile
@@ -104,7 +104,11 @@ xfs-$(CONFIG_XFS_QUOTA)		+= xfs_dquot.o \
 				   xfs_qm_bhv.o \
 				   xfs_qm.o \
 				   xfs_quotaops.o
-xfs-$(CONFIG_XFS_RT)		+= xfs_rtalloc.o
+
+# xfs_rtbitmap is shared with libxfs
+xfs-$(CONFIG_XFS_RT)		+= xfs_rtalloc.o \
+				   xfs_rtbitmap.o
+
 xfs-$(CONFIG_XFS_POSIX_ACL)	+= xfs_acl.o
 xfs-$(CONFIG_PROC_FS)		+= xfs_stats.o
 xfs-$(CONFIG_SYSCTL)		+= xfs_sysctl.o
diff --git a/fs/xfs/xfs_rtalloc.c b/fs/xfs/xfs_rtalloc.c
index d5da15578185..a6a76b2b6a85 100644
--- a/fs/xfs/xfs_rtalloc.c
+++ b/fs/xfs/xfs_rtalloc.c
@@ -37,247 +37,336 @@
 #include "xfs_buf.h"
 #include "xfs_icache.h"
 #include "xfs_dinode.h"
+#include "xfs_rtalloc.h"
 
 
 /*
- * Prototypes for internal functions.
- */
-
-
-STATIC int xfs_rtallocate_range(xfs_mount_t *, xfs_trans_t *, xfs_rtblock_t,
-		xfs_extlen_t, xfs_buf_t **, xfs_fsblock_t *);
-STATIC int xfs_rtany_summary(xfs_mount_t *, xfs_trans_t *, int, int,
-		xfs_rtblock_t, xfs_buf_t **, xfs_fsblock_t *, int *);
-STATIC int xfs_rtcheck_range(xfs_mount_t *, xfs_trans_t *, xfs_rtblock_t,
-		xfs_extlen_t, int, xfs_rtblock_t *, int *);
-STATIC int xfs_rtfind_back(xfs_mount_t *, xfs_trans_t *, xfs_rtblock_t,
-		xfs_rtblock_t, xfs_rtblock_t *);
-STATIC int xfs_rtfind_forw(xfs_mount_t *, xfs_trans_t *, xfs_rtblock_t,
-		xfs_rtblock_t, xfs_rtblock_t *);
-STATIC int xfs_rtget_summary( xfs_mount_t *, xfs_trans_t *, int,
-		xfs_rtblock_t, xfs_buf_t **, xfs_fsblock_t *, xfs_suminfo_t *);
-STATIC int xfs_rtmodify_range(xfs_mount_t *, xfs_trans_t *, xfs_rtblock_t,
-		xfs_extlen_t, int);
-STATIC int xfs_rtmodify_summary(xfs_mount_t *, xfs_trans_t *, int,
-		xfs_rtblock_t, int, xfs_buf_t **, xfs_fsblock_t *);
-
-/*
- * Internal functions.
- */
-
-/*
- * Allocate space to the bitmap or summary file, and zero it, for growfs.
+ * Read and return the summary information for a given extent size,
+ * bitmap block combination.
+ * Keeps track of a current summary block, so we don't keep reading
+ * it from the buffer cache.
  */
 STATIC int				/* error */
-xfs_growfs_rt_alloc(
-	xfs_mount_t	*mp,		/* file system mount point */
-	xfs_extlen_t	oblocks,	/* old count of blocks */
-	xfs_extlen_t	nblocks,	/* new count of blocks */
-	xfs_inode_t	*ip)		/* inode (bitmap/summary) */
+xfs_rtget_summary(
+	xfs_mount_t	*mp,		/* file system mount structure */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	int		log,		/* log2 of extent size */
+	xfs_rtblock_t	bbno,		/* bitmap block number */
+	xfs_buf_t	**rbpp,		/* in/out: summary block buffer */
+	xfs_fsblock_t	*rsb,		/* in/out: summary block number */
+	xfs_suminfo_t	*sum)		/* out: summary info for this block */
 {
-	xfs_fileoff_t	bno;		/* block number in file */
-	xfs_buf_t	*bp;		/* temporary buffer for zeroing */
-	int		committed;	/* transaction committed flag */
-	xfs_daddr_t	d;		/* disk block address */
-	int		error;		/* error return value */
-	xfs_fsblock_t	firstblock;	/* first block allocated in xaction */
-	xfs_bmap_free_t	flist;		/* list of freed blocks */
-	xfs_fsblock_t	fsbno;		/* filesystem block for bno */
-	xfs_bmbt_irec_t	map;		/* block map output */
-	int		nmap;		/* number of block maps */
-	int		resblks;	/* space reservation */
+	xfs_buf_t	*bp;		/* buffer for summary block */
+	int		error;		/* error value */
+	xfs_fsblock_t	sb;		/* summary fsblock */
+	int		so;		/* index into the summary file */
+	xfs_suminfo_t	*sp;		/* pointer to returned data */
 
 	/*
-	 * Allocate space to the file, as necessary.
+	 * Compute entry number in the summary file.
 	 */
-	while (oblocks < nblocks) {
-		int		cancelflags = 0;
-		xfs_trans_t	*tp;
-
-		tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFSRT_ALLOC);
-		resblks = XFS_GROWFSRT_SPACE_RES(mp, nblocks - oblocks);
-		/*
-		 * Reserve space & log for one extent added to the file.
-		 */
-		error = xfs_trans_reserve(tp, &M_RES(mp)->tr_growdata,
-					  resblks, 0);
-		if (error)
-			goto error_cancel;
-		cancelflags = XFS_TRANS_RELEASE_LOG_RES;
-		/*
-		 * Lock the inode.
-		 */
-		xfs_ilock(ip, XFS_ILOCK_EXCL);
-		xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
-
-		xfs_bmap_init(&flist, &firstblock);
-		/*
-		 * Allocate blocks to the bitmap file.
-		 */
-		nmap = 1;
-		cancelflags |= XFS_TRANS_ABORT;
-		error = xfs_bmapi_write(tp, ip, oblocks, nblocks - oblocks,
-					XFS_BMAPI_METADATA, &firstblock,
-					resblks, &map, &nmap, &flist);
-		if (!error && nmap < 1)
-			error = XFS_ERROR(ENOSPC);
-		if (error)
-			goto error_cancel;
-		/*
-		 * Free any blocks freed up in the transaction, then commit.
-		 */
-		error = xfs_bmap_finish(&tp, &flist, &committed);
-		if (error)
-			goto error_cancel;
-		error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
-		if (error)
-			goto error;
+	so = XFS_SUMOFFS(mp, log, bbno);
+	/*
+	 * Compute the block number in the summary file.
+	 */
+	sb = XFS_SUMOFFSTOBLOCK(mp, so);
+	/*
+	 * If we have an old buffer, and the block number matches, use that.
+	 */
+	if (rbpp && *rbpp && *rsb == sb)
+		bp = *rbpp;
+	/*
+	 * Otherwise we have to get the buffer.
+	 */
+	else {
 		/*
-		 * Now we need to clear the allocated blocks.
-		 * Do this one block per transaction, to keep it simple.
+		 * If there was an old one, get rid of it first.
 		 */
-		cancelflags = 0;
-		for (bno = map.br_startoff, fsbno = map.br_startblock;
-		     bno < map.br_startoff + map.br_blockcount;
-		     bno++, fsbno++) {
-			tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFSRT_ZERO);
-			/*
-			 * Reserve log for one block zeroing.
-			 */
-			error = xfs_trans_reserve(tp, &M_RES(mp)->tr_growrtzero,
-						  0, 0);
-			if (error)
-				goto error_cancel;
-			/*
-			 * Lock the bitmap inode.
-			 */
-			xfs_ilock(ip, XFS_ILOCK_EXCL);
-			xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
-			/*
-			 * Get a buffer for the block.
-			 */
-			d = XFS_FSB_TO_DADDR(mp, fsbno);
-			bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, d,
-				mp->m_bsize, 0);
-			if (bp == NULL) {
-				error = XFS_ERROR(EIO);
-error_cancel:
-				xfs_trans_cancel(tp, cancelflags);
-				goto error;
-			}
-			memset(bp->b_addr, 0, mp->m_sb.sb_blocksize);
-			xfs_trans_log_buf(tp, bp, 0, mp->m_sb.sb_blocksize - 1);
-			/*
-			 * Commit the transaction.
-			 */
-			error = xfs_trans_commit(tp, 0);
-			if (error)
-				goto error;
+		if (rbpp && *rbpp)
+			xfs_trans_brelse(tp, *rbpp);
+		error = xfs_rtbuf_get(mp, tp, sb, 1, &bp);
+		if (error) {
+			return error;
 		}
 		/*
-		 * Go on to the next extent, if any.
+		 * Remember this buffer and block for the next call.
 		 */
-		oblocks = map.br_startoff + map.br_blockcount;
+		if (rbpp) {
+			*rbpp = bp;
+			*rsb = sb;
+		}
 	}
+	/*
+	 * Point to the summary information & copy it out.
+	 */
+	sp = XFS_SUMPTR(mp, bp, so);
+	*sum = *sp;
+	/*
+	 * Drop the buffer if we're not asked to remember it.
+	 */
+	if (!rbpp)
+		xfs_trans_brelse(tp, bp);
 	return 0;
-
-error:
-	return error;
 }
 
+
 /*
- * Attempt to allocate an extent minlen<=len<=maxlen starting from
- * bitmap block bbno.  If we don't get maxlen then use prod to trim
- * the length, if given.  Returns error; returns starting block in *rtblock.
- * The lengths are all in rtextents.
+ * Return whether there are any free extents in the size range given
+ * by low and high, for the bitmap block bbno.
  */
 STATIC int				/* error */
-xfs_rtallocate_extent_block(
-	xfs_mount_t	*mp,		/* file system mount point */
+xfs_rtany_summary(
+	xfs_mount_t	*mp,		/* file system mount structure */
 	xfs_trans_t	*tp,		/* transaction pointer */
+	int		low,		/* low log2 extent size */
+	int		high,		/* high log2 extent size */
 	xfs_rtblock_t	bbno,		/* bitmap block number */
-	xfs_extlen_t	minlen,		/* minimum length to allocate */
-	xfs_extlen_t	maxlen,		/* maximum length to allocate */
-	xfs_extlen_t	*len,		/* out: actual length allocated */
-	xfs_rtblock_t	*nextp,		/* out: next block to try */
 	xfs_buf_t	**rbpp,		/* in/out: summary block buffer */
 	xfs_fsblock_t	*rsb,		/* in/out: summary block number */
-	xfs_extlen_t	prod,		/* extent product factor */
-	xfs_rtblock_t	*rtblock)	/* out: start block allocated */
+	int		*stat)		/* out: any good extents here? */
 {
-	xfs_rtblock_t	besti;		/* best rtblock found so far */
-	xfs_rtblock_t	bestlen;	/* best length found so far */
-	xfs_rtblock_t	end;		/* last rtblock in chunk */
 	int		error;		/* error value */
-	xfs_rtblock_t	i;		/* current rtblock trying */
-	xfs_rtblock_t	next;		/* next rtblock to try */
-	int		stat;		/* status from internal calls */
+	int		log;		/* loop counter, log2 of ext. size */
+	xfs_suminfo_t	sum;		/* summary data */
 
 	/*
-	 * Loop over all the extents starting in this bitmap block,
-	 * looking for one that's long enough.
+	 * Loop over logs of extent sizes.  Order is irrelevant.
 	 */
-	for (i = XFS_BLOCKTOBIT(mp, bbno), besti = -1, bestlen = 0,
-		end = XFS_BLOCKTOBIT(mp, bbno + 1) - 1;
-	     i <= end;
-	     i++) {
+	for (log = low; log <= high; log++) {
 		/*
-		 * See if there's a free extent of maxlen starting at i.
-		 * If it's not so then next will contain the first non-free.
+		 * Get one summary datum.
 		 */
-		error = xfs_rtcheck_range(mp, tp, i, maxlen, 1, &next, &stat);
+		error = xfs_rtget_summary(mp, tp, log, bbno, rbpp, rsb, &sum);
 		if (error) {
 			return error;
 		}
-		if (stat) {
-			/*
-			 * i for maxlen is all free, allocate and return that.
-			 */
-			error = xfs_rtallocate_range(mp, tp, i, maxlen, rbpp,
-				rsb);
-			if (error) {
-				return error;
-			}
-			*len = maxlen;
-			*rtblock = i;
-			return 0;
-		}
 		/*
-		 * In the case where we have a variable-sized allocation
-		 * request, figure out how big this free piece is,
-		 * and if it's big enough for the minimum, and the best
-		 * so far, remember it.
+		 * If there are any, return success.
 		 */
-		if (minlen < maxlen) {
-			xfs_rtblock_t	thislen;	/* this extent size */
-
-			thislen = next - i;
-			if (thislen >= minlen && thislen > bestlen) {
-				besti = i;
-				bestlen = thislen;
-			}
+		if (sum) {
+			*stat = 1;
+			return 0;
 		}
-		/*
-		 * If not done yet, find the start of the next free space.
-		 */
-		if (next < end) {
-			error = xfs_rtfind_forw(mp, tp, next, end, &i);
-			if (error) {
-				return error;
-			}
-		} else
-			break;
 	}
 	/*
-	 * Searched the whole thing & didn't find a maxlen free extent.
+	 * Found nothing, return failure.
 	 */
-	if (minlen < maxlen && besti != -1) {
-		xfs_extlen_t	p;	/* amount to trim length by */
+	*stat = 0;
+	return 0;
+}
 
-		/*
-		 * If size should be a multiple of prod, make that so.
-		 */
-		if (prod > 1 && (p = do_mod(bestlen, prod)))
+
+/*
+ * Copy and transform the summary file, given the old and new
+ * parameters in the mount structures.
+ */
+STATIC int				/* error */
+xfs_rtcopy_summary(
+	xfs_mount_t	*omp,		/* old file system mount point */
+	xfs_mount_t	*nmp,		/* new file system mount point */
+	xfs_trans_t	*tp)		/* transaction pointer */
+{
+	xfs_rtblock_t	bbno;		/* bitmap block number */
+	xfs_buf_t	*bp;		/* summary buffer */
+	int		error;		/* error return value */
+	int		log;		/* summary level number (log length) */
+	xfs_suminfo_t	sum;		/* summary data */
+	xfs_fsblock_t	sumbno;		/* summary block number */
+
+	bp = NULL;
+	for (log = omp->m_rsumlevels - 1; log >= 0; log--) {
+		for (bbno = omp->m_sb.sb_rbmblocks - 1;
+		     (xfs_srtblock_t)bbno >= 0;
+		     bbno--) {
+			error = xfs_rtget_summary(omp, tp, log, bbno, &bp,
+				&sumbno, &sum);
+			if (error)
+				return error;
+			if (sum == 0)
+				continue;
+			error = xfs_rtmodify_summary(omp, tp, log, bbno, -sum,
+				&bp, &sumbno);
+			if (error)
+				return error;
+			error = xfs_rtmodify_summary(nmp, tp, log, bbno, sum,
+				&bp, &sumbno);
+			if (error)
+				return error;
+			ASSERT(sum > 0);
+		}
+	}
+	return 0;
+}
+/*
+ * Mark an extent specified by start and len allocated.
+ * Updates all the summary information as well as the bitmap.
+ */
+STATIC int				/* error */
+xfs_rtallocate_range(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	start,		/* start block to allocate */
+	xfs_extlen_t	len,		/* length to allocate */
+	xfs_buf_t	**rbpp,		/* in/out: summary block buffer */
+	xfs_fsblock_t	*rsb)		/* in/out: summary block number */
+{
+	xfs_rtblock_t	end;		/* end of the allocated extent */
+	int		error;		/* error value */
+	xfs_rtblock_t	postblock = 0;	/* first block allocated > end */
+	xfs_rtblock_t	preblock = 0;	/* first block allocated < start */
+
+	end = start + len - 1;
+	/*
+	 * Assume we're allocating out of the middle of a free extent.
+	 * We need to find the beginning and end of the extent so we can
+	 * properly update the summary.
+	 */
+	error = xfs_rtfind_back(mp, tp, start, 0, &preblock);
+	if (error) {
+		return error;
+	}
+	/*
+	 * Find the next allocated block (end of free extent).
+	 */
+	error = xfs_rtfind_forw(mp, tp, end, mp->m_sb.sb_rextents - 1,
+		&postblock);
+	if (error) {
+		return error;
+	}
+	/*
+	 * Decrement the summary information corresponding to the entire
+	 * (old) free extent.
+	 */
+	error = xfs_rtmodify_summary(mp, tp,
+		XFS_RTBLOCKLOG(postblock + 1 - preblock),
+		XFS_BITTOBLOCK(mp, preblock), -1, rbpp, rsb);
+	if (error) {
+		return error;
+	}
+	/*
+	 * If there are blocks not being allocated at the front of the
+	 * old extent, add summary data for them to be free.
+	 */
+	if (preblock < start) {
+		error = xfs_rtmodify_summary(mp, tp,
+			XFS_RTBLOCKLOG(start - preblock),
+			XFS_BITTOBLOCK(mp, preblock), 1, rbpp, rsb);
+		if (error) {
+			return error;
+		}
+	}
+	/*
+	 * If there are blocks not being allocated at the end of the
+	 * old extent, add summary data for them to be free.
+	 */
+	if (postblock > end) {
+		error = xfs_rtmodify_summary(mp, tp,
+			XFS_RTBLOCKLOG(postblock - end),
+			XFS_BITTOBLOCK(mp, end + 1), 1, rbpp, rsb);
+		if (error) {
+			return error;
+		}
+	}
+	/*
+	 * Modify the bitmap to mark this extent allocated.
+	 */
+	error = xfs_rtmodify_range(mp, tp, start, len, 0);
+	return error;
+}
+
+/*
+ * Attempt to allocate an extent minlen<=len<=maxlen starting from
+ * bitmap block bbno.  If we don't get maxlen then use prod to trim
+ * the length, if given.  Returns error; returns starting block in *rtblock.
+ * The lengths are all in rtextents.
+ */
+STATIC int				/* error */
+xfs_rtallocate_extent_block(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	bbno,		/* bitmap block number */
+	xfs_extlen_t	minlen,		/* minimum length to allocate */
+	xfs_extlen_t	maxlen,		/* maximum length to allocate */
+	xfs_extlen_t	*len,		/* out: actual length allocated */
+	xfs_rtblock_t	*nextp,		/* out: next block to try */
+	xfs_buf_t	**rbpp,		/* in/out: summary block buffer */
+	xfs_fsblock_t	*rsb,		/* in/out: summary block number */
+	xfs_extlen_t	prod,		/* extent product factor */
+	xfs_rtblock_t	*rtblock)	/* out: start block allocated */
+{
+	xfs_rtblock_t	besti;		/* best rtblock found so far */
+	xfs_rtblock_t	bestlen;	/* best length found so far */
+	xfs_rtblock_t	end;		/* last rtblock in chunk */
+	int		error;		/* error value */
+	xfs_rtblock_t	i;		/* current rtblock trying */
+	xfs_rtblock_t	next;		/* next rtblock to try */
+	int		stat;		/* status from internal calls */
+
+	/*
+	 * Loop over all the extents starting in this bitmap block,
+	 * looking for one that's long enough.
+	 */
+	for (i = XFS_BLOCKTOBIT(mp, bbno), besti = -1, bestlen = 0,
+		end = XFS_BLOCKTOBIT(mp, bbno + 1) - 1;
+	     i <= end;
+	     i++) {
+		/*
+		 * See if there's a free extent of maxlen starting at i.
+		 * If it's not so then next will contain the first non-free.
+		 */
+		error = xfs_rtcheck_range(mp, tp, i, maxlen, 1, &next, &stat);
+		if (error) {
+			return error;
+		}
+		if (stat) {
+			/*
+			 * i for maxlen is all free, allocate and return that.
+			 */
+			error = xfs_rtallocate_range(mp, tp, i, maxlen, rbpp,
+				rsb);
+			if (error) {
+				return error;
+			}
+			*len = maxlen;
+			*rtblock = i;
+			return 0;
+		}
+		/*
+		 * In the case where we have a variable-sized allocation
+		 * request, figure out how big this free piece is,
+		 * and if it's big enough for the minimum, and the best
+		 * so far, remember it.
+		 */
+		if (minlen < maxlen) {
+			xfs_rtblock_t	thislen;	/* this extent size */
+
+			thislen = next - i;
+			if (thislen >= minlen && thislen > bestlen) {
+				besti = i;
+				bestlen = thislen;
+			}
+		}
+		/*
+		 * If not done yet, find the start of the next free space.
+		 */
+		if (next < end) {
+			error = xfs_rtfind_forw(mp, tp, next, end, &i);
+			if (error) {
+				return error;
+			}
+		} else
+			break;
+	}
+	/*
+	 * Searched the whole thing & didn't find a maxlen free extent.
+	 */
+	if (minlen < maxlen && besti != -1) {
+		xfs_extlen_t	p;	/* amount to trim length by */
+
+		/*
+		 * If size should be a multiple of prod, make that so.
+		 */
+		if (prod > 1 && (p = do_mod(bestlen, prod)))
 			bestlen -= p;
 		/*
 		 * Allocate besti for bestlen & return that.
@@ -638,1191 +727,205 @@ xfs_rtallocate_extent_size(
 			 */
 			if (r != NULLRTBLOCK) {
 				*rtblock = r;
-				return 0;
-			}
-			/*
-			 * If the "next block to try" returned from the
-			 * allocator is beyond the next bitmap block,
-			 * skip to that bitmap block.
-			 */
-			if (XFS_BITTOBLOCK(mp, n) > i + 1)
-				i = XFS_BITTOBLOCK(mp, n) - 1;
-		}
-	}
-	/*
-	 * Didn't find any maxlen blocks.  Try smaller ones, unless
-	 * we're asking for a fixed size extent.
-	 */
-	if (minlen > --maxlen) {
-		*rtblock = NULLRTBLOCK;
-		return 0;
-	}
-	ASSERT(minlen != 0);
-	ASSERT(maxlen != 0);
-
-	/*
-	 * Loop over sizes, from maxlen down to minlen.
-	 * This time, when we do the allocations, allow smaller ones
-	 * to succeed.
-	 */
-	for (l = xfs_highbit32(maxlen); l >= xfs_highbit32(minlen); l--) {
-		/*
-		 * Loop over all the bitmap blocks, try an allocation
-		 * starting in that block.
-		 */
-		for (i = 0; i < mp->m_sb.sb_rbmblocks; i++) {
-			/*
-			 * Get the summary information for this level/block.
-			 */
-			error =	xfs_rtget_summary(mp, tp, l, i, rbpp, rsb,
-						  &sum);
-			if (error) {
-				return error;
-			}
-			/*
-			 * If nothing there, go on to next.
-			 */
-			if (!sum)
-				continue;
-			/*
-			 * Try the allocation.  Make sure the specified
-			 * minlen/maxlen are in the possible range for
-			 * this summary level.
-			 */
-			error = xfs_rtallocate_extent_block(mp, tp, i,
-					XFS_RTMAX(minlen, 1 << l),
-					XFS_RTMIN(maxlen, (1 << (l + 1)) - 1),
-					len, &n, rbpp, rsb, prod, &r);
-			if (error) {
-				return error;
-			}
-			/*
-			 * If it worked, return that extent.
-			 */
-			if (r != NULLRTBLOCK) {
-				*rtblock = r;
-				return 0;
-			}
-			/*
-			 * If the "next block to try" returned from the
-			 * allocator is beyond the next bitmap block,
-			 * skip to that bitmap block.
-			 */
-			if (XFS_BITTOBLOCK(mp, n) > i + 1)
-				i = XFS_BITTOBLOCK(mp, n) - 1;
-		}
-	}
-	/*
-	 * Got nothing, return failure.
-	 */
-	*rtblock = NULLRTBLOCK;
-	return 0;
-}
-
-/*
- * Mark an extent specified by start and len allocated.
- * Updates all the summary information as well as the bitmap.
- */
-STATIC int				/* error */
-xfs_rtallocate_range(
-	xfs_mount_t	*mp,		/* file system mount point */
-	xfs_trans_t	*tp,		/* transaction pointer */
-	xfs_rtblock_t	start,		/* start block to allocate */
-	xfs_extlen_t	len,		/* length to allocate */
-	xfs_buf_t	**rbpp,		/* in/out: summary block buffer */
-	xfs_fsblock_t	*rsb)		/* in/out: summary block number */
-{
-	xfs_rtblock_t	end;		/* end of the allocated extent */
-	int		error;		/* error value */
-	xfs_rtblock_t	postblock = 0;	/* first block allocated > end */
-	xfs_rtblock_t	preblock = 0;	/* first block allocated < start */
-
-	end = start + len - 1;
-	/*
-	 * Assume we're allocating out of the middle of a free extent.
-	 * We need to find the beginning and end of the extent so we can
-	 * properly update the summary.
-	 */
-	error = xfs_rtfind_back(mp, tp, start, 0, &preblock);
-	if (error) {
-		return error;
-	}
-	/*
-	 * Find the next allocated block (end of free extent).
-	 */
-	error = xfs_rtfind_forw(mp, tp, end, mp->m_sb.sb_rextents - 1,
-		&postblock);
-	if (error) {
-		return error;
-	}
-	/*
-	 * Decrement the summary information corresponding to the entire
-	 * (old) free extent.
-	 */
-	error = xfs_rtmodify_summary(mp, tp,
-		XFS_RTBLOCKLOG(postblock + 1 - preblock),
-		XFS_BITTOBLOCK(mp, preblock), -1, rbpp, rsb);
-	if (error) {
-		return error;
-	}
-	/*
-	 * If there are blocks not being allocated at the front of the
-	 * old extent, add summary data for them to be free.
-	 */
-	if (preblock < start) {
-		error = xfs_rtmodify_summary(mp, tp,
-			XFS_RTBLOCKLOG(start - preblock),
-			XFS_BITTOBLOCK(mp, preblock), 1, rbpp, rsb);
-		if (error) {
-			return error;
-		}
-	}
-	/*
-	 * If there are blocks not being allocated at the end of the
-	 * old extent, add summary data for them to be free.
-	 */
-	if (postblock > end) {
-		error = xfs_rtmodify_summary(mp, tp,
-			XFS_RTBLOCKLOG(postblock - end),
-			XFS_BITTOBLOCK(mp, end + 1), 1, rbpp, rsb);
-		if (error) {
-			return error;
-		}
-	}
-	/*
-	 * Modify the bitmap to mark this extent allocated.
-	 */
-	error = xfs_rtmodify_range(mp, tp, start, len, 0);
-	return error;
-}
-
-/*
- * Return whether there are any free extents in the size range given
- * by low and high, for the bitmap block bbno.
- */
-STATIC int				/* error */
-xfs_rtany_summary(
-	xfs_mount_t	*mp,		/* file system mount structure */
-	xfs_trans_t	*tp,		/* transaction pointer */
-	int		low,		/* low log2 extent size */
-	int		high,		/* high log2 extent size */
-	xfs_rtblock_t	bbno,		/* bitmap block number */
-	xfs_buf_t	**rbpp,		/* in/out: summary block buffer */
-	xfs_fsblock_t	*rsb,		/* in/out: summary block number */
-	int		*stat)		/* out: any good extents here? */
-{
-	int		error;		/* error value */
-	int		log;		/* loop counter, log2 of ext. size */
-	xfs_suminfo_t	sum;		/* summary data */
-
-	/*
-	 * Loop over logs of extent sizes.  Order is irrelevant.
-	 */
-	for (log = low; log <= high; log++) {
-		/*
-		 * Get one summary datum.
-		 */
-		error = xfs_rtget_summary(mp, tp, log, bbno, rbpp, rsb, &sum);
-		if (error) {
-			return error;
-		}
-		/*
-		 * If there are any, return success.
-		 */
-		if (sum) {
-			*stat = 1;
-			return 0;
-		}
-	}
-	/*
-	 * Found nothing, return failure.
-	 */
-	*stat = 0;
-	return 0;
-}
-
-/*
- * Get a buffer for the bitmap or summary file block specified.
- * The buffer is returned read and locked.
- */
-STATIC int				/* error */
-xfs_rtbuf_get(
-	xfs_mount_t	*mp,		/* file system mount structure */
-	xfs_trans_t	*tp,		/* transaction pointer */
-	xfs_rtblock_t	block,		/* block number in bitmap or summary */
-	int		issum,		/* is summary not bitmap */
-	xfs_buf_t	**bpp)		/* output: buffer for the block */
-{
-	xfs_buf_t	*bp;		/* block buffer, result */
-	xfs_inode_t	*ip;		/* bitmap or summary inode */
-	xfs_bmbt_irec_t	map;
-	int		nmap = 1;
-	int		error;		/* error value */
-
-	ip = issum ? mp->m_rsumip : mp->m_rbmip;
-
-	error = xfs_bmapi_read(ip, block, 1, &map, &nmap, XFS_DATA_FORK);
-	if (error)
-		return error;
-
-	ASSERT(map.br_startblock != NULLFSBLOCK);
-	error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp,
-				   XFS_FSB_TO_DADDR(mp, map.br_startblock),
-				   mp->m_bsize, 0, &bp, NULL);
-	if (error)
-		return error;
-	ASSERT(!xfs_buf_geterror(bp));
-	*bpp = bp;
-	return 0;
-}
-
-#ifdef DEBUG
-/*
- * Check that the given extent (block range) is allocated already.
- */
-STATIC int				/* error */
-xfs_rtcheck_alloc_range(
-	xfs_mount_t	*mp,		/* file system mount point */
-	xfs_trans_t	*tp,		/* transaction pointer */
-	xfs_rtblock_t	bno,		/* starting block number of extent */
-	xfs_extlen_t	len,		/* length of extent */
-	int		*stat)		/* out: 1 for allocated, 0 for not */
-{
-	xfs_rtblock_t	new;		/* dummy for xfs_rtcheck_range */
-
-	return xfs_rtcheck_range(mp, tp, bno, len, 0, &new, stat);
-}
-#endif
-
-/*
- * Check that the given range is either all allocated (val = 0) or
- * all free (val = 1).
- */
-STATIC int				/* error */
-xfs_rtcheck_range(
-	xfs_mount_t	*mp,		/* file system mount point */
-	xfs_trans_t	*tp,		/* transaction pointer */
-	xfs_rtblock_t	start,		/* starting block number of extent */
-	xfs_extlen_t	len,		/* length of extent */
-	int		val,		/* 1 for free, 0 for allocated */
-	xfs_rtblock_t	*new,		/* out: first block not matching */
-	int		*stat)		/* out: 1 for matches, 0 for not */
-{
-	xfs_rtword_t	*b;		/* current word in buffer */
-	int		bit;		/* bit number in the word */
-	xfs_rtblock_t	block;		/* bitmap block number */
-	xfs_buf_t	*bp;		/* buf for the block */
-	xfs_rtword_t	*bufp;		/* starting word in buffer */
-	int		error;		/* error value */
-	xfs_rtblock_t	i;		/* current bit number rel. to start */
-	xfs_rtblock_t	lastbit;	/* last useful bit in word */
-	xfs_rtword_t	mask;		/* mask of relevant bits for value */
-	xfs_rtword_t	wdiff;		/* difference from wanted value */
-	int		word;		/* word number in the buffer */
-
-	/*
-	 * Compute starting bitmap block number
-	 */
-	block = XFS_BITTOBLOCK(mp, start);
-	/*
-	 * Read the bitmap block.
-	 */
-	error = xfs_rtbuf_get(mp, tp, block, 0, &bp);
-	if (error) {
-		return error;
-	}
-	bufp = bp->b_addr;
-	/*
-	 * Compute the starting word's address, and starting bit.
-	 */
-	word = XFS_BITTOWORD(mp, start);
-	b = &bufp[word];
-	bit = (int)(start & (XFS_NBWORD - 1));
-	/*
-	 * 0 (allocated) => all zero's; 1 (free) => all one's.
-	 */
-	val = -val;
-	/*
-	 * If not starting on a word boundary, deal with the first
-	 * (partial) word.
-	 */
-	if (bit) {
-		/*
-		 * Compute first bit not examined.
-		 */
-		lastbit = XFS_RTMIN(bit + len, XFS_NBWORD);
-		/*
-		 * Mask of relevant bits.
-		 */
-		mask = (((xfs_rtword_t)1 << (lastbit - bit)) - 1) << bit;
-		/*
-		 * Compute difference between actual and desired value.
-		 */
-		if ((wdiff = (*b ^ val) & mask)) {
-			/*
-			 * Different, compute first wrong bit and return.
-			 */
-			xfs_trans_brelse(tp, bp);
-			i = XFS_RTLOBIT(wdiff) - bit;
-			*new = start + i;
-			*stat = 0;
-			return 0;
-		}
-		i = lastbit - bit;
-		/*
-		 * Go on to next block if that's where the next word is
-		 * and we need the next word.
-		 */
-		if (++word == XFS_BLOCKWSIZE(mp) && i < len) {
-			/*
-			 * If done with this block, get the next one.
-			 */
-			xfs_trans_brelse(tp, bp);
-			error = xfs_rtbuf_get(mp, tp, ++block, 0, &bp);
-			if (error) {
-				return error;
-			}
-			b = bufp = bp->b_addr;
-			word = 0;
-		} else {
-			/*
-			 * Go on to the next word in the buffer.
-			 */
-			b++;
-		}
-	} else {
-		/*
-		 * Starting on a word boundary, no partial word.
-		 */
-		i = 0;
-	}
-	/*
-	 * Loop over whole words in buffers.  When we use up one buffer
-	 * we move on to the next one.
-	 */
-	while (len - i >= XFS_NBWORD) {
-		/*
-		 * Compute difference between actual and desired value.
-		 */
-		if ((wdiff = *b ^ val)) {
-			/*
-			 * Different, compute first wrong bit and return.
-			 */
-			xfs_trans_brelse(tp, bp);
-			i += XFS_RTLOBIT(wdiff);
-			*new = start + i;
-			*stat = 0;
-			return 0;
-		}
-		i += XFS_NBWORD;
-		/*
-		 * Go on to next block if that's where the next word is
-		 * and we need the next word.
-		 */
-		if (++word == XFS_BLOCKWSIZE(mp) && i < len) {
-			/*
-			 * If done with this block, get the next one.
-			 */
-			xfs_trans_brelse(tp, bp);
-			error = xfs_rtbuf_get(mp, tp, ++block, 0, &bp);
-			if (error) {
-				return error;
-			}
-			b = bufp = bp->b_addr;
-			word = 0;
-		} else {
-			/*
-			 * Go on to the next word in the buffer.
-			 */
-			b++;
-		}
-	}
-	/*
-	 * If not ending on a word boundary, deal with the last
-	 * (partial) word.
-	 */
-	if ((lastbit = len - i)) {
-		/*
-		 * Mask of relevant bits.
-		 */
-		mask = ((xfs_rtword_t)1 << lastbit) - 1;
-		/*
-		 * Compute difference between actual and desired value.
-		 */
-		if ((wdiff = (*b ^ val) & mask)) {
-			/*
-			 * Different, compute first wrong bit and return.
-			 */
-			xfs_trans_brelse(tp, bp);
-			i += XFS_RTLOBIT(wdiff);
-			*new = start + i;
-			*stat = 0;
-			return 0;
-		} else
-			i = len;
-	}
-	/*
-	 * Successful, return.
-	 */
-	xfs_trans_brelse(tp, bp);
-	*new = start + i;
-	*stat = 1;
-	return 0;
-}
-
-/*
- * Copy and transform the summary file, given the old and new
- * parameters in the mount structures.
- */
-STATIC int				/* error */
-xfs_rtcopy_summary(
-	xfs_mount_t	*omp,		/* old file system mount point */
-	xfs_mount_t	*nmp,		/* new file system mount point */
-	xfs_trans_t	*tp)		/* transaction pointer */
-{
-	xfs_rtblock_t	bbno;		/* bitmap block number */
-	xfs_buf_t	*bp;		/* summary buffer */
-	int		error;		/* error return value */
-	int		log;		/* summary level number (log length) */
-	xfs_suminfo_t	sum;		/* summary data */
-	xfs_fsblock_t	sumbno;		/* summary block number */
-
-	bp = NULL;
-	for (log = omp->m_rsumlevels - 1; log >= 0; log--) {
-		for (bbno = omp->m_sb.sb_rbmblocks - 1;
-		     (xfs_srtblock_t)bbno >= 0;
-		     bbno--) {
-			error = xfs_rtget_summary(omp, tp, log, bbno, &bp,
-				&sumbno, &sum);
-			if (error)
-				return error;
-			if (sum == 0)
-				continue;
-			error = xfs_rtmodify_summary(omp, tp, log, bbno, -sum,
-				&bp, &sumbno);
-			if (error)
-				return error;
-			error = xfs_rtmodify_summary(nmp, tp, log, bbno, sum,
-				&bp, &sumbno);
-			if (error)
-				return error;
-			ASSERT(sum > 0);
-		}
-	}
-	return 0;
-}
-
-/*
- * Searching backward from start to limit, find the first block whose
- * allocated/free state is different from start's.
- */
-STATIC int				/* error */
-xfs_rtfind_back(
-	xfs_mount_t	*mp,		/* file system mount point */
-	xfs_trans_t	*tp,		/* transaction pointer */
-	xfs_rtblock_t	start,		/* starting block to look at */
-	xfs_rtblock_t	limit,		/* last block to look at */
-	xfs_rtblock_t	*rtblock)	/* out: start block found */
-{
-	xfs_rtword_t	*b;		/* current word in buffer */
-	int		bit;		/* bit number in the word */
-	xfs_rtblock_t	block;		/* bitmap block number */
-	xfs_buf_t	*bp;		/* buf for the block */
-	xfs_rtword_t	*bufp;		/* starting word in buffer */
-	int		error;		/* error value */
-	xfs_rtblock_t	firstbit;	/* first useful bit in the word */
-	xfs_rtblock_t	i;		/* current bit number rel. to start */
-	xfs_rtblock_t	len;		/* length of inspected area */
-	xfs_rtword_t	mask;		/* mask of relevant bits for value */
-	xfs_rtword_t	want;		/* mask for "good" values */
-	xfs_rtword_t	wdiff;		/* difference from wanted value */
-	int		word;		/* word number in the buffer */
-
-	/*
-	 * Compute and read in starting bitmap block for starting block.
-	 */
-	block = XFS_BITTOBLOCK(mp, start);
-	error = xfs_rtbuf_get(mp, tp, block, 0, &bp);
-	if (error) {
-		return error;
-	}
-	bufp = bp->b_addr;
-	/*
-	 * Get the first word's index & point to it.
-	 */
-	word = XFS_BITTOWORD(mp, start);
-	b = &bufp[word];
-	bit = (int)(start & (XFS_NBWORD - 1));
-	len = start - limit + 1;
-	/*
-	 * Compute match value, based on the bit at start: if 1 (free)
-	 * then all-ones, else all-zeroes.
-	 */
-	want = (*b & ((xfs_rtword_t)1 << bit)) ? -1 : 0;
-	/*
-	 * If the starting position is not word-aligned, deal with the
-	 * partial word.
-	 */
-	if (bit < XFS_NBWORD - 1) {
-		/*
-		 * Calculate first (leftmost) bit number to look at,
-		 * and mask for all the relevant bits in this word.
-		 */
-		firstbit = XFS_RTMAX((xfs_srtblock_t)(bit - len + 1), 0);
-		mask = (((xfs_rtword_t)1 << (bit - firstbit + 1)) - 1) <<
-			firstbit;
-		/*
-		 * Calculate the difference between the value there
-		 * and what we're looking for.
-		 */
-		if ((wdiff = (*b ^ want) & mask)) {
-			/*
-			 * Different.  Mark where we are and return.
-			 */
-			xfs_trans_brelse(tp, bp);
-			i = bit - XFS_RTHIBIT(wdiff);
-			*rtblock = start - i + 1;
-			return 0;
-		}
-		i = bit - firstbit + 1;
-		/*
-		 * Go on to previous block if that's where the previous word is
-		 * and we need the previous word.
-		 */
-		if (--word == -1 && i < len) {
-			/*
-			 * If done with this block, get the previous one.
-			 */
-			xfs_trans_brelse(tp, bp);
-			error = xfs_rtbuf_get(mp, tp, --block, 0, &bp);
-			if (error) {
-				return error;
-			}
-			bufp = bp->b_addr;
-			word = XFS_BLOCKWMASK(mp);
-			b = &bufp[word];
-		} else {
-			/*
-			 * Go on to the previous word in the buffer.
-			 */
-			b--;
-		}
-	} else {
-		/*
-		 * Starting on a word boundary, no partial word.
-		 */
-		i = 0;
-	}
-	/*
-	 * Loop over whole words in buffers.  When we use up one buffer
-	 * we move on to the previous one.
-	 */
-	while (len - i >= XFS_NBWORD) {
-		/*
-		 * Compute difference between actual and desired value.
-		 */
-		if ((wdiff = *b ^ want)) {
-			/*
-			 * Different, mark where we are and return.
-			 */
-			xfs_trans_brelse(tp, bp);
-			i += XFS_NBWORD - 1 - XFS_RTHIBIT(wdiff);
-			*rtblock = start - i + 1;
-			return 0;
-		}
-		i += XFS_NBWORD;
-		/*
-		 * Go on to previous block if that's where the previous word is
-		 * and we need the previous word.
-		 */
-		if (--word == -1 && i < len) {
-			/*
-			 * If done with this block, get the previous one.
-			 */
-			xfs_trans_brelse(tp, bp);
-			error = xfs_rtbuf_get(mp, tp, --block, 0, &bp);
-			if (error) {
-				return error;
-			}
-			bufp = bp->b_addr;
-			word = XFS_BLOCKWMASK(mp);
-			b = &bufp[word];
-		} else {
-			/*
-			 * Go on to the previous word in the buffer.
-			 */
-			b--;
-		}
-	}
-	/*
-	 * If not ending on a word boundary, deal with the last
-	 * (partial) word.
-	 */
-	if (len - i) {
-		/*
-		 * Calculate first (leftmost) bit number to look at,
-		 * and mask for all the relevant bits in this word.
-		 */
-		firstbit = XFS_NBWORD - (len - i);
-		mask = (((xfs_rtword_t)1 << (len - i)) - 1) << firstbit;
-		/*
-		 * Compute difference between actual and desired value.
-		 */
-		if ((wdiff = (*b ^ want) & mask)) {
-			/*
-			 * Different, mark where we are and return.
-			 */
-			xfs_trans_brelse(tp, bp);
-			i += XFS_NBWORD - 1 - XFS_RTHIBIT(wdiff);
-			*rtblock = start - i + 1;
-			return 0;
-		} else
-			i = len;
-	}
-	/*
-	 * No match, return that we scanned the whole area.
-	 */
-	xfs_trans_brelse(tp, bp);
-	*rtblock = start - i + 1;
-	return 0;
-}
-
-/*
- * Searching forward from start to limit, find the first block whose
- * allocated/free state is different from start's.
- */
-STATIC int				/* error */
-xfs_rtfind_forw(
-	xfs_mount_t	*mp,		/* file system mount point */
-	xfs_trans_t	*tp,		/* transaction pointer */
-	xfs_rtblock_t	start,		/* starting block to look at */
-	xfs_rtblock_t	limit,		/* last block to look at */
-	xfs_rtblock_t	*rtblock)	/* out: start block found */
-{
-	xfs_rtword_t	*b;		/* current word in buffer */
-	int		bit;		/* bit number in the word */
-	xfs_rtblock_t	block;		/* bitmap block number */
-	xfs_buf_t	*bp;		/* buf for the block */
-	xfs_rtword_t	*bufp;		/* starting word in buffer */
-	int		error;		/* error value */
-	xfs_rtblock_t	i;		/* current bit number rel. to start */
-	xfs_rtblock_t	lastbit;	/* last useful bit in the word */
-	xfs_rtblock_t	len;		/* length of inspected area */
-	xfs_rtword_t	mask;		/* mask of relevant bits for value */
-	xfs_rtword_t	want;		/* mask for "good" values */
-	xfs_rtword_t	wdiff;		/* difference from wanted value */
-	int		word;		/* word number in the buffer */
-
-	/*
-	 * Compute and read in starting bitmap block for starting block.
-	 */
-	block = XFS_BITTOBLOCK(mp, start);
-	error = xfs_rtbuf_get(mp, tp, block, 0, &bp);
-	if (error) {
-		return error;
-	}
-	bufp = bp->b_addr;
-	/*
-	 * Get the first word's index & point to it.
-	 */
-	word = XFS_BITTOWORD(mp, start);
-	b = &bufp[word];
-	bit = (int)(start & (XFS_NBWORD - 1));
-	len = limit - start + 1;
-	/*
-	 * Compute match value, based on the bit at start: if 1 (free)
-	 * then all-ones, else all-zeroes.
-	 */
-	want = (*b & ((xfs_rtword_t)1 << bit)) ? -1 : 0;
-	/*
-	 * If the starting position is not word-aligned, deal with the
-	 * partial word.
-	 */
-	if (bit) {
-		/*
-		 * Calculate last (rightmost) bit number to look at,
-		 * and mask for all the relevant bits in this word.
-		 */
-		lastbit = XFS_RTMIN(bit + len, XFS_NBWORD);
-		mask = (((xfs_rtword_t)1 << (lastbit - bit)) - 1) << bit;
-		/*
-		 * Calculate the difference between the value there
-		 * and what we're looking for.
-		 */
-		if ((wdiff = (*b ^ want) & mask)) {
-			/*
-			 * Different.  Mark where we are and return.
-			 */
-			xfs_trans_brelse(tp, bp);
-			i = XFS_RTLOBIT(wdiff) - bit;
-			*rtblock = start + i - 1;
-			return 0;
-		}
-		i = lastbit - bit;
-		/*
-		 * Go on to next block if that's where the next word is
-		 * and we need the next word.
-		 */
-		if (++word == XFS_BLOCKWSIZE(mp) && i < len) {
-			/*
-			 * If done with this block, get the previous one.
-			 */
-			xfs_trans_brelse(tp, bp);
-			error = xfs_rtbuf_get(mp, tp, ++block, 0, &bp);
-			if (error) {
-				return error;
-			}
-			b = bufp = bp->b_addr;
-			word = 0;
-		} else {
-			/*
-			 * Go on to the previous word in the buffer.
-			 */
-			b++;
-		}
-	} else {
-		/*
-		 * Starting on a word boundary, no partial word.
-		 */
-		i = 0;
-	}
-	/*
-	 * Loop over whole words in buffers.  When we use up one buffer
-	 * we move on to the next one.
-	 */
-	while (len - i >= XFS_NBWORD) {
-		/*
-		 * Compute difference between actual and desired value.
-		 */
-		if ((wdiff = *b ^ want)) {
-			/*
-			 * Different, mark where we are and return.
-			 */
-			xfs_trans_brelse(tp, bp);
-			i += XFS_RTLOBIT(wdiff);
-			*rtblock = start + i - 1;
-			return 0;
-		}
-		i += XFS_NBWORD;
-		/*
-		 * Go on to next block if that's where the next word is
-		 * and we need the next word.
-		 */
-		if (++word == XFS_BLOCKWSIZE(mp) && i < len) {
-			/*
-			 * If done with this block, get the next one.
-			 */
-			xfs_trans_brelse(tp, bp);
-			error = xfs_rtbuf_get(mp, tp, ++block, 0, &bp);
-			if (error) {
-				return error;
-			}
-			b = bufp = bp->b_addr;
-			word = 0;
-		} else {
-			/*
-			 * Go on to the next word in the buffer.
-			 */
-			b++;
-		}
-	}
-	/*
-	 * If not ending on a word boundary, deal with the last
-	 * (partial) word.
-	 */
-	if ((lastbit = len - i)) {
-		/*
-		 * Calculate mask for all the relevant bits in this word.
-		 */
-		mask = ((xfs_rtword_t)1 << lastbit) - 1;
-		/*
-		 * Compute difference between actual and desired value.
-		 */
-		if ((wdiff = (*b ^ want) & mask)) {
-			/*
-			 * Different, mark where we are and return.
-			 */
-			xfs_trans_brelse(tp, bp);
-			i += XFS_RTLOBIT(wdiff);
-			*rtblock = start + i - 1;
-			return 0;
-		} else
-			i = len;
-	}
-	/*
-	 * No match, return that we scanned the whole area.
-	 */
-	xfs_trans_brelse(tp, bp);
-	*rtblock = start + i - 1;
-	return 0;
-}
-
-/*
- * Mark an extent specified by start and len freed.
- * Updates all the summary information as well as the bitmap.
- */
-STATIC int				/* error */
-xfs_rtfree_range(
-	xfs_mount_t	*mp,		/* file system mount point */
-	xfs_trans_t	*tp,		/* transaction pointer */
-	xfs_rtblock_t	start,		/* starting block to free */
-	xfs_extlen_t	len,		/* length to free */
-	xfs_buf_t	**rbpp,		/* in/out: summary block buffer */
-	xfs_fsblock_t	*rsb)		/* in/out: summary block number */
-{
-	xfs_rtblock_t	end;		/* end of the freed extent */
-	int		error;		/* error value */
-	xfs_rtblock_t	postblock;	/* first block freed > end */
-	xfs_rtblock_t	preblock;	/* first block freed < start */
-
-	end = start + len - 1;
-	/*
-	 * Modify the bitmap to mark this extent freed.
-	 */
-	error = xfs_rtmodify_range(mp, tp, start, len, 1);
-	if (error) {
-		return error;
-	}
-	/*
-	 * Assume we're freeing out of the middle of an allocated extent.
-	 * We need to find the beginning and end of the extent so we can
-	 * properly update the summary.
-	 */
-	error = xfs_rtfind_back(mp, tp, start, 0, &preblock);
-	if (error) {
-		return error;
-	}
-	/*
-	 * Find the next allocated block (end of allocated extent).
-	 */
-	error = xfs_rtfind_forw(mp, tp, end, mp->m_sb.sb_rextents - 1,
-		&postblock);
-	if (error)
-		return error;
-	/*
-	 * If there are blocks not being freed at the front of the
-	 * old extent, add summary data for them to be allocated.
-	 */
-	if (preblock < start) {
-		error = xfs_rtmodify_summary(mp, tp,
-			XFS_RTBLOCKLOG(start - preblock),
-			XFS_BITTOBLOCK(mp, preblock), -1, rbpp, rsb);
-		if (error) {
-			return error;
-		}
-	}
-	/*
-	 * If there are blocks not being freed at the end of the
-	 * old extent, add summary data for them to be allocated.
-	 */
-	if (postblock > end) {
-		error = xfs_rtmodify_summary(mp, tp,
-			XFS_RTBLOCKLOG(postblock - end),
-			XFS_BITTOBLOCK(mp, end + 1), -1, rbpp, rsb);
-		if (error) {
-			return error;
-		}
-	}
-	/*
-	 * Increment the summary information corresponding to the entire
-	 * (new) free extent.
-	 */
-	error = xfs_rtmodify_summary(mp, tp,
-		XFS_RTBLOCKLOG(postblock + 1 - preblock),
-		XFS_BITTOBLOCK(mp, preblock), 1, rbpp, rsb);
-	return error;
-}
-
-/*
- * Read and return the summary information for a given extent size,
- * bitmap block combination.
- * Keeps track of a current summary block, so we don't keep reading
- * it from the buffer cache.
- */
-STATIC int				/* error */
-xfs_rtget_summary(
-	xfs_mount_t	*mp,		/* file system mount structure */
-	xfs_trans_t	*tp,		/* transaction pointer */
-	int		log,		/* log2 of extent size */
-	xfs_rtblock_t	bbno,		/* bitmap block number */
-	xfs_buf_t	**rbpp,		/* in/out: summary block buffer */
-	xfs_fsblock_t	*rsb,		/* in/out: summary block number */
-	xfs_suminfo_t	*sum)		/* out: summary info for this block */
-{
-	xfs_buf_t	*bp;		/* buffer for summary block */
-	int		error;		/* error value */
-	xfs_fsblock_t	sb;		/* summary fsblock */
-	int		so;		/* index into the summary file */
-	xfs_suminfo_t	*sp;		/* pointer to returned data */
-
-	/*
-	 * Compute entry number in the summary file.
-	 */
-	so = XFS_SUMOFFS(mp, log, bbno);
-	/*
-	 * Compute the block number in the summary file.
-	 */
-	sb = XFS_SUMOFFSTOBLOCK(mp, so);
-	/*
-	 * If we have an old buffer, and the block number matches, use that.
-	 */
-	if (rbpp && *rbpp && *rsb == sb)
-		bp = *rbpp;
-	/*
-	 * Otherwise we have to get the buffer.
-	 */
-	else {
-		/*
-		 * If there was an old one, get rid of it first.
-		 */
-		if (rbpp && *rbpp)
-			xfs_trans_brelse(tp, *rbpp);
-		error = xfs_rtbuf_get(mp, tp, sb, 1, &bp);
-		if (error) {
-			return error;
-		}
-		/*
-		 * Remember this buffer and block for the next call.
-		 */
-		if (rbpp) {
-			*rbpp = bp;
-			*rsb = sb;
-		}
-	}
-	/*
-	 * Point to the summary information & copy it out.
-	 */
-	sp = XFS_SUMPTR(mp, bp, so);
-	*sum = *sp;
-	/*
-	 * Drop the buffer if we're not asked to remember it.
-	 */
-	if (!rbpp)
-		xfs_trans_brelse(tp, bp);
-	return 0;
-}
-
-/*
- * Set the given range of bitmap bits to the given value.
- * Do whatever I/O and logging is required.
- */
-STATIC int				/* error */
-xfs_rtmodify_range(
-	xfs_mount_t	*mp,		/* file system mount point */
-	xfs_trans_t	*tp,		/* transaction pointer */
-	xfs_rtblock_t	start,		/* starting block to modify */
-	xfs_extlen_t	len,		/* length of extent to modify */
-	int		val)		/* 1 for free, 0 for allocated */
-{
-	xfs_rtword_t	*b;		/* current word in buffer */
-	int		bit;		/* bit number in the word */
-	xfs_rtblock_t	block;		/* bitmap block number */
-	xfs_buf_t	*bp;		/* buf for the block */
-	xfs_rtword_t	*bufp;		/* starting word in buffer */
-	int		error;		/* error value */
-	xfs_rtword_t	*first;		/* first used word in the buffer */
-	int		i;		/* current bit number rel. to start */
-	int		lastbit;	/* last useful bit in word */
-	xfs_rtword_t	mask;		/* mask o frelevant bits for value */
-	int		word;		/* word number in the buffer */
-
-	/*
-	 * Compute starting bitmap block number.
-	 */
-	block = XFS_BITTOBLOCK(mp, start);
-	/*
-	 * Read the bitmap block, and point to its data.
-	 */
-	error = xfs_rtbuf_get(mp, tp, block, 0, &bp);
-	if (error) {
-		return error;
+				return 0;
+			}
+			/*
+			 * If the "next block to try" returned from the
+			 * allocator is beyond the next bitmap block,
+			 * skip to that bitmap block.
+			 */
+			if (XFS_BITTOBLOCK(mp, n) > i + 1)
+				i = XFS_BITTOBLOCK(mp, n) - 1;
+		}
 	}
-	bufp = bp->b_addr;
-	/*
-	 * Compute the starting word's address, and starting bit.
-	 */
-	word = XFS_BITTOWORD(mp, start);
-	first = b = &bufp[word];
-	bit = (int)(start & (XFS_NBWORD - 1));
 	/*
-	 * 0 (allocated) => all zeroes; 1 (free) => all ones.
+	 * Didn't find any maxlen blocks.  Try smaller ones, unless
+	 * we're asking for a fixed size extent.
 	 */
-	val = -val;
+	if (minlen > --maxlen) {
+		*rtblock = NULLRTBLOCK;
+		return 0;
+	}
+	ASSERT(minlen != 0);
+	ASSERT(maxlen != 0);
+
 	/*
-	 * If not starting on a word boundary, deal with the first
-	 * (partial) word.
+	 * Loop over sizes, from maxlen down to minlen.
+	 * This time, when we do the allocations, allow smaller ones
+	 * to succeed.
 	 */
-	if (bit) {
-		/*
-		 * Compute first bit not changed and mask of relevant bits.
-		 */
-		lastbit = XFS_RTMIN(bit + len, XFS_NBWORD);
-		mask = (((xfs_rtword_t)1 << (lastbit - bit)) - 1) << bit;
-		/*
-		 * Set/clear the active bits.
-		 */
-		if (val)
-			*b |= mask;
-		else
-			*b &= ~mask;
-		i = lastbit - bit;
+	for (l = xfs_highbit32(maxlen); l >= xfs_highbit32(minlen); l--) {
 		/*
-		 * Go on to the next block if that's where the next word is
-		 * and we need the next word.
+		 * Loop over all the bitmap blocks, try an allocation
+		 * starting in that block.
 		 */
-		if (++word == XFS_BLOCKWSIZE(mp) && i < len) {
+		for (i = 0; i < mp->m_sb.sb_rbmblocks; i++) {
 			/*
-			 * Log the changed part of this block.
-			 * Get the next one.
+			 * Get the summary information for this level/block.
 			 */
-			xfs_trans_log_buf(tp, bp,
-				(uint)((char *)first - (char *)bufp),
-				(uint)((char *)b - (char *)bufp));
-			error = xfs_rtbuf_get(mp, tp, ++block, 0, &bp);
+			error =	xfs_rtget_summary(mp, tp, l, i, rbpp, rsb,
+						  &sum);
 			if (error) {
 				return error;
 			}
-			first = b = bufp = bp->b_addr;
-			word = 0;
-		} else {
 			/*
-			 * Go on to the next word in the buffer
+			 * If nothing there, go on to next.
 			 */
-			b++;
-		}
-	} else {
-		/*
-		 * Starting on a word boundary, no partial word.
-		 */
-		i = 0;
-	}
-	/*
-	 * Loop over whole words in buffers.  When we use up one buffer
-	 * we move on to the next one.
-	 */
-	while (len - i >= XFS_NBWORD) {
-		/*
-		 * Set the word value correctly.
-		 */
-		*b = val;
-		i += XFS_NBWORD;
-		/*
-		 * Go on to the next block if that's where the next word is
-		 * and we need the next word.
-		 */
-		if (++word == XFS_BLOCKWSIZE(mp) && i < len) {
+			if (!sum)
+				continue;
 			/*
-			 * Log the changed part of this block.
-			 * Get the next one.
+			 * Try the allocation.  Make sure the specified
+			 * minlen/maxlen are in the possible range for
+			 * this summary level.
 			 */
-			xfs_trans_log_buf(tp, bp,
-				(uint)((char *)first - (char *)bufp),
-				(uint)((char *)b - (char *)bufp));
-			error = xfs_rtbuf_get(mp, tp, ++block, 0, &bp);
+			error = xfs_rtallocate_extent_block(mp, tp, i,
+					XFS_RTMAX(minlen, 1 << l),
+					XFS_RTMIN(maxlen, (1 << (l + 1)) - 1),
+					len, &n, rbpp, rsb, prod, &r);
 			if (error) {
 				return error;
 			}
-			first = b = bufp = bp->b_addr;
-			word = 0;
-		} else {
 			/*
-			 * Go on to the next word in the buffer
+			 * If it worked, return that extent.
+			 */
+			if (r != NULLRTBLOCK) {
+				*rtblock = r;
+				return 0;
+			}
+			/*
+			 * If the "next block to try" returned from the
+			 * allocator is beyond the next bitmap block,
+			 * skip to that bitmap block.
 			 */
-			b++;
+			if (XFS_BITTOBLOCK(mp, n) > i + 1)
+				i = XFS_BITTOBLOCK(mp, n) - 1;
 		}
 	}
 	/*
-	 * If not ending on a word boundary, deal with the last
-	 * (partial) word.
-	 */
-	if ((lastbit = len - i)) {
-		/*
-		 * Compute a mask of relevant bits.
-		 */
-		bit = 0;
-		mask = ((xfs_rtword_t)1 << lastbit) - 1;
-		/*
-		 * Set/clear the active bits.
-		 */
-		if (val)
-			*b |= mask;
-		else
-			*b &= ~mask;
-		b++;
-	}
-	/*
-	 * Log any remaining changed bytes.
+	 * Got nothing, return failure.
 	 */
-	if (b > first)
-		xfs_trans_log_buf(tp, bp, (uint)((char *)first - (char *)bufp),
-			(uint)((char *)b - (char *)bufp - 1));
+	*rtblock = NULLRTBLOCK;
 	return 0;
 }
 
 /*
- * Read and modify the summary information for a given extent size,
- * bitmap block combination.
- * Keeps track of a current summary block, so we don't keep reading
- * it from the buffer cache.
+ * Allocate space to the bitmap or summary file, and zero it, for growfs.
  */
 STATIC int				/* error */
-xfs_rtmodify_summary(
+xfs_growfs_rt_alloc(
 	xfs_mount_t	*mp,		/* file system mount point */
-	xfs_trans_t	*tp,		/* transaction pointer */
-	int		log,		/* log2 of extent size */
-	xfs_rtblock_t	bbno,		/* bitmap block number */
-	int		delta,		/* change to make to summary info */
-	xfs_buf_t	**rbpp,		/* in/out: summary block buffer */
-	xfs_fsblock_t	*rsb)		/* in/out: summary block number */
+	xfs_extlen_t	oblocks,	/* old count of blocks */
+	xfs_extlen_t	nblocks,	/* new count of blocks */
+	xfs_inode_t	*ip)		/* inode (bitmap/summary) */
 {
-	xfs_buf_t	*bp;		/* buffer for the summary block */
-	int		error;		/* error value */
-	xfs_fsblock_t	sb;		/* summary fsblock */
-	int		so;		/* index into the summary file */
-	xfs_suminfo_t	*sp;		/* pointer to returned data */
+	xfs_fileoff_t	bno;		/* block number in file */
+	xfs_buf_t	*bp;		/* temporary buffer for zeroing */
+	int		committed;	/* transaction committed flag */
+	xfs_daddr_t	d;		/* disk block address */
+	int		error;		/* error return value */
+	xfs_fsblock_t	firstblock;	/* first block allocated in xaction */
+	xfs_bmap_free_t	flist;		/* list of freed blocks */
+	xfs_fsblock_t	fsbno;		/* filesystem block for bno */
+	xfs_bmbt_irec_t	map;		/* block map output */
+	int		nmap;		/* number of block maps */
+	int		resblks;	/* space reservation */
 
 	/*
-	 * Compute entry number in the summary file.
-	 */
-	so = XFS_SUMOFFS(mp, log, bbno);
-	/*
-	 * Compute the block number in the summary file.
-	 */
-	sb = XFS_SUMOFFSTOBLOCK(mp, so);
-	/*
-	 * If we have an old buffer, and the block number matches, use that.
-	 */
-	if (rbpp && *rbpp && *rsb == sb)
-		bp = *rbpp;
-	/*
-	 * Otherwise we have to get the buffer.
+	 * Allocate space to the file, as necessary.
 	 */
-	else {
+	while (oblocks < nblocks) {
+		int		cancelflags = 0;
+		xfs_trans_t	*tp;
+
+		tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFSRT_ALLOC);
+		resblks = XFS_GROWFSRT_SPACE_RES(mp, nblocks - oblocks);
 		/*
-		 * If there was an old one, get rid of it first.
+		 * Reserve space & log for one extent added to the file.
 		 */
-		if (rbpp && *rbpp)
-			xfs_trans_brelse(tp, *rbpp);
-		error = xfs_rtbuf_get(mp, tp, sb, 1, &bp);
-		if (error) {
-			return error;
-		}
+		error = xfs_trans_reserve(tp, &M_RES(mp)->tr_growdata,
+					  resblks, 0);
+		if (error)
+			goto error_cancel;
+		cancelflags = XFS_TRANS_RELEASE_LOG_RES;
 		/*
-		 * Remember this buffer and block for the next call.
+		 * Lock the inode.
 		 */
-		if (rbpp) {
-			*rbpp = bp;
-			*rsb = sb;
+		xfs_ilock(ip, XFS_ILOCK_EXCL);
+		xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+
+		xfs_bmap_init(&flist, &firstblock);
+		/*
+		 * Allocate blocks to the bitmap file.
+		 */
+		nmap = 1;
+		cancelflags |= XFS_TRANS_ABORT;
+		error = xfs_bmapi_write(tp, ip, oblocks, nblocks - oblocks,
+					XFS_BMAPI_METADATA, &firstblock,
+					resblks, &map, &nmap, &flist);
+		if (!error && nmap < 1)
+			error = XFS_ERROR(ENOSPC);
+		if (error)
+			goto error_cancel;
+		/*
+		 * Free any blocks freed up in the transaction, then commit.
+		 */
+		error = xfs_bmap_finish(&tp, &flist, &committed);
+		if (error)
+			goto error_cancel;
+		error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
+		if (error)
+			goto error;
+		/*
+		 * Now we need to clear the allocated blocks.
+		 * Do this one block per transaction, to keep it simple.
+		 */
+		cancelflags = 0;
+		for (bno = map.br_startoff, fsbno = map.br_startblock;
+		     bno < map.br_startoff + map.br_blockcount;
+		     bno++, fsbno++) {
+			tp = xfs_trans_alloc(mp, XFS_TRANS_GROWFSRT_ZERO);
+			/*
+			 * Reserve log for one block zeroing.
+			 */
+			error = xfs_trans_reserve(tp, &M_RES(mp)->tr_growrtzero,
+						  0, 0);
+			if (error)
+				goto error_cancel;
+			/*
+			 * Lock the bitmap inode.
+			 */
+			xfs_ilock(ip, XFS_ILOCK_EXCL);
+			xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+			/*
+			 * Get a buffer for the block.
+			 */
+			d = XFS_FSB_TO_DADDR(mp, fsbno);
+			bp = xfs_trans_get_buf(tp, mp->m_ddev_targp, d,
+				mp->m_bsize, 0);
+			if (bp == NULL) {
+				error = XFS_ERROR(EIO);
+error_cancel:
+				xfs_trans_cancel(tp, cancelflags);
+				goto error;
+			}
+			memset(bp->b_addr, 0, mp->m_sb.sb_blocksize);
+			xfs_trans_log_buf(tp, bp, 0, mp->m_sb.sb_blocksize - 1);
+			/*
+			 * Commit the transaction.
+			 */
+			error = xfs_trans_commit(tp, 0);
+			if (error)
+				goto error;
 		}
+		/*
+		 * Go on to the next extent, if any.
+		 */
+		oblocks = map.br_startoff + map.br_blockcount;
 	}
-	/*
-	 * Point to the summary information, modify and log it.
-	 */
-	sp = XFS_SUMPTR(mp, bp, so);
-	*sp += delta;
-	xfs_trans_log_buf(tp, bp, (uint)((char *)sp - (char *)bp->b_addr),
-		(uint)((char *)sp - (char *)bp->b_addr + sizeof(*sp) - 1));
 	return 0;
+
+error:
+	return error;
 }
 
 /*
@@ -2127,66 +1230,6 @@ xfs_rtallocate_extent(
 	return 0;
 }
 
-/*
- * Free an extent in the realtime subvolume.  Length is expressed in
- * realtime extents, as is the block number.
- */
-int					/* error */
-xfs_rtfree_extent(
-	xfs_trans_t	*tp,		/* transaction pointer */
-	xfs_rtblock_t	bno,		/* starting block number to free */
-	xfs_extlen_t	len)		/* length of extent freed */
-{
-	int		error;		/* error value */
-	xfs_mount_t	*mp;		/* file system mount structure */
-	xfs_fsblock_t	sb;		/* summary file block number */
-	xfs_buf_t	*sumbp;		/* summary file block buffer */
-
-	mp = tp->t_mountp;
-
-	ASSERT(mp->m_rbmip->i_itemp != NULL);
-	ASSERT(xfs_isilocked(mp->m_rbmip, XFS_ILOCK_EXCL));
-
-#ifdef DEBUG
-	/*
-	 * Check to see that this whole range is currently allocated.
-	 */
-	{
-		int	stat;		/* result from checking range */
-
-		error = xfs_rtcheck_alloc_range(mp, tp, bno, len, &stat);
-		if (error) {
-			return error;
-		}
-		ASSERT(stat);
-	}
-#endif
-	sumbp = NULL;
-	/*
-	 * Free the range of realtime blocks.
-	 */
-	error = xfs_rtfree_range(mp, tp, bno, len, &sumbp, &sb);
-	if (error) {
-		return error;
-	}
-	/*
-	 * Mark more blocks free in the superblock.
-	 */
-	xfs_trans_mod_sb(tp, XFS_TRANS_SB_FREXTENTS, (long)len);
-	/*
-	 * If we've now freed all the blocks, reset the file sequence
-	 * number to 0.
-	 */
-	if (tp->t_frextents_delta + mp->m_sb.sb_frextents ==
-	    mp->m_sb.sb_rextents) {
-		if (!(mp->m_rbmip->i_d.di_flags & XFS_DIFLAG_NEWRTBM))
-			mp->m_rbmip->i_d.di_flags |= XFS_DIFLAG_NEWRTBM;
-		*(__uint64_t *)&mp->m_rbmip->i_d.di_atime = 0;
-		xfs_trans_log_inode(tp, mp->m_rbmip, XFS_ILOG_CORE);
-	}
-	return 0;
-}
-
 /*
  * Initialize realtime fields in the mount structure.
  */
diff --git a/fs/xfs/xfs_rtalloc.h b/fs/xfs/xfs_rtalloc.h
index b2a1a24c0e2f..752b63d10300 100644
--- a/fs/xfs/xfs_rtalloc.h
+++ b/fs/xfs/xfs_rtalloc.h
@@ -95,6 +95,30 @@ xfs_growfs_rt(
 	struct xfs_mount	*mp,	/* file system mount structure */
 	xfs_growfs_rt_t		*in);	/* user supplied growfs struct */
 
+/*
+ * From xfs_rtbitmap.c
+ */
+int xfs_rtbuf_get(struct xfs_mount *mp, struct xfs_trans *tp,
+		  xfs_rtblock_t block, int issum, struct xfs_buf **bpp);
+int xfs_rtcheck_range(struct xfs_mount *mp, struct xfs_trans *tp,
+		      xfs_rtblock_t start, xfs_extlen_t len, int val,
+		      xfs_rtblock_t *new, int *stat);
+int xfs_rtfind_back(struct xfs_mount *mp, struct xfs_trans *tp,
+		    xfs_rtblock_t start, xfs_rtblock_t limit,
+		    xfs_rtblock_t *rtblock);
+int xfs_rtfind_forw(struct xfs_mount *mp, struct xfs_trans *tp,
+		    xfs_rtblock_t start, xfs_rtblock_t limit,
+		    xfs_rtblock_t *rtblock);
+int xfs_rtmodify_range(struct xfs_mount *mp, struct xfs_trans *tp,
+		       xfs_rtblock_t start, xfs_extlen_t len, int val);
+int xfs_rtmodify_summary(struct xfs_mount *mp, struct xfs_trans *tp, int log,
+			 xfs_rtblock_t bbno, int delta, xfs_buf_t **rbpp,
+			 xfs_fsblock_t *rsb);
+int xfs_rtfree_range(struct xfs_mount *mp, struct xfs_trans *tp,
+		     xfs_rtblock_t start, xfs_extlen_t len,
+		     struct xfs_buf **rbpp, xfs_fsblock_t *rsb);
+
+
 #else
 # define xfs_rtallocate_extent(t,b,min,max,l,a,f,p,rb)  (ENOSYS)
 # define xfs_rtfree_extent(t,b,l)                       (ENOSYS)
diff --git a/fs/xfs/xfs_rtbitmap.c b/fs/xfs/xfs_rtbitmap.c
new file mode 100644
index 000000000000..e30efe8be5e6
--- /dev/null
+++ b/fs/xfs/xfs_rtbitmap.c
@@ -0,0 +1,973 @@
+/*
+ * Copyright (c) 2000-2005 Silicon Graphics, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_shared.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_bit.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_mount.h"
+#include "xfs_inode.h"
+#include "xfs_bmap.h"
+#include "xfs_bmap_util.h"
+#include "xfs_bmap_btree.h"
+#include "xfs_alloc.h"
+#include "xfs_error.h"
+#include "xfs_trans.h"
+#include "xfs_trans_space.h"
+#include "xfs_trace.h"
+#include "xfs_buf.h"
+#include "xfs_icache.h"
+#include "xfs_dinode.h"
+
+
+/*
+ * Realtime allocator bitmap functions shared with userspace.
+ */
+
+/*
+ * Get a buffer for the bitmap or summary file block specified.
+ * The buffer is returned read and locked.
+ */
+int
+xfs_rtbuf_get(
+	xfs_mount_t	*mp,		/* file system mount structure */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	block,		/* block number in bitmap or summary */
+	int		issum,		/* is summary not bitmap */
+	xfs_buf_t	**bpp)		/* output: buffer for the block */
+{
+	xfs_buf_t	*bp;		/* block buffer, result */
+	xfs_inode_t	*ip;		/* bitmap or summary inode */
+	xfs_bmbt_irec_t	map;
+	int		nmap = 1;
+	int		error;		/* error value */
+
+	ip = issum ? mp->m_rsumip : mp->m_rbmip;
+
+	error = xfs_bmapi_read(ip, block, 1, &map, &nmap, XFS_DATA_FORK);
+	if (error)
+		return error;
+
+	ASSERT(map.br_startblock != NULLFSBLOCK);
+	error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp,
+				   XFS_FSB_TO_DADDR(mp, map.br_startblock),
+				   mp->m_bsize, 0, &bp, NULL);
+	if (error)
+		return error;
+	ASSERT(!xfs_buf_geterror(bp));
+	*bpp = bp;
+	return 0;
+}
+
+/*
+ * Searching backward from start to limit, find the first block whose
+ * allocated/free state is different from start's.
+ */
+int
+xfs_rtfind_back(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	start,		/* starting block to look at */
+	xfs_rtblock_t	limit,		/* last block to look at */
+	xfs_rtblock_t	*rtblock)	/* out: start block found */
+{
+	xfs_rtword_t	*b;		/* current word in buffer */
+	int		bit;		/* bit number in the word */
+	xfs_rtblock_t	block;		/* bitmap block number */
+	xfs_buf_t	*bp;		/* buf for the block */
+	xfs_rtword_t	*bufp;		/* starting word in buffer */
+	int		error;		/* error value */
+	xfs_rtblock_t	firstbit;	/* first useful bit in the word */
+	xfs_rtblock_t	i;		/* current bit number rel. to start */
+	xfs_rtblock_t	len;		/* length of inspected area */
+	xfs_rtword_t	mask;		/* mask of relevant bits for value */
+	xfs_rtword_t	want;		/* mask for "good" values */
+	xfs_rtword_t	wdiff;		/* difference from wanted value */
+	int		word;		/* word number in the buffer */
+
+	/*
+	 * Compute and read in starting bitmap block for starting block.
+	 */
+	block = XFS_BITTOBLOCK(mp, start);
+	error = xfs_rtbuf_get(mp, tp, block, 0, &bp);
+	if (error) {
+		return error;
+	}
+	bufp = bp->b_addr;
+	/*
+	 * Get the first word's index & point to it.
+	 */
+	word = XFS_BITTOWORD(mp, start);
+	b = &bufp[word];
+	bit = (int)(start & (XFS_NBWORD - 1));
+	len = start - limit + 1;
+	/*
+	 * Compute match value, based on the bit at start: if 1 (free)
+	 * then all-ones, else all-zeroes.
+	 */
+	want = (*b & ((xfs_rtword_t)1 << bit)) ? -1 : 0;
+	/*
+	 * If the starting position is not word-aligned, deal with the
+	 * partial word.
+	 */
+	if (bit < XFS_NBWORD - 1) {
+		/*
+		 * Calculate first (leftmost) bit number to look at,
+		 * and mask for all the relevant bits in this word.
+		 */
+		firstbit = XFS_RTMAX((xfs_srtblock_t)(bit - len + 1), 0);
+		mask = (((xfs_rtword_t)1 << (bit - firstbit + 1)) - 1) <<
+			firstbit;
+		/*
+		 * Calculate the difference between the value there
+		 * and what we're looking for.
+		 */
+		if ((wdiff = (*b ^ want) & mask)) {
+			/*
+			 * Different.  Mark where we are and return.
+			 */
+			xfs_trans_brelse(tp, bp);
+			i = bit - XFS_RTHIBIT(wdiff);
+			*rtblock = start - i + 1;
+			return 0;
+		}
+		i = bit - firstbit + 1;
+		/*
+		 * Go on to previous block if that's where the previous word is
+		 * and we need the previous word.
+		 */
+		if (--word == -1 && i < len) {
+			/*
+			 * If done with this block, get the previous one.
+			 */
+			xfs_trans_brelse(tp, bp);
+			error = xfs_rtbuf_get(mp, tp, --block, 0, &bp);
+			if (error) {
+				return error;
+			}
+			bufp = bp->b_addr;
+			word = XFS_BLOCKWMASK(mp);
+			b = &bufp[word];
+		} else {
+			/*
+			 * Go on to the previous word in the buffer.
+			 */
+			b--;
+		}
+	} else {
+		/*
+		 * Starting on a word boundary, no partial word.
+		 */
+		i = 0;
+	}
+	/*
+	 * Loop over whole words in buffers.  When we use up one buffer
+	 * we move on to the previous one.
+	 */
+	while (len - i >= XFS_NBWORD) {
+		/*
+		 * Compute difference between actual and desired value.
+		 */
+		if ((wdiff = *b ^ want)) {
+			/*
+			 * Different, mark where we are and return.
+			 */
+			xfs_trans_brelse(tp, bp);
+			i += XFS_NBWORD - 1 - XFS_RTHIBIT(wdiff);
+			*rtblock = start - i + 1;
+			return 0;
+		}
+		i += XFS_NBWORD;
+		/*
+		 * Go on to previous block if that's where the previous word is
+		 * and we need the previous word.
+		 */
+		if (--word == -1 && i < len) {
+			/*
+			 * If done with this block, get the previous one.
+			 */
+			xfs_trans_brelse(tp, bp);
+			error = xfs_rtbuf_get(mp, tp, --block, 0, &bp);
+			if (error) {
+				return error;
+			}
+			bufp = bp->b_addr;
+			word = XFS_BLOCKWMASK(mp);
+			b = &bufp[word];
+		} else {
+			/*
+			 * Go on to the previous word in the buffer.
+			 */
+			b--;
+		}
+	}
+	/*
+	 * If not ending on a word boundary, deal with the last
+	 * (partial) word.
+	 */
+	if (len - i) {
+		/*
+		 * Calculate first (leftmost) bit number to look at,
+		 * and mask for all the relevant bits in this word.
+		 */
+		firstbit = XFS_NBWORD - (len - i);
+		mask = (((xfs_rtword_t)1 << (len - i)) - 1) << firstbit;
+		/*
+		 * Compute difference between actual and desired value.
+		 */
+		if ((wdiff = (*b ^ want) & mask)) {
+			/*
+			 * Different, mark where we are and return.
+			 */
+			xfs_trans_brelse(tp, bp);
+			i += XFS_NBWORD - 1 - XFS_RTHIBIT(wdiff);
+			*rtblock = start - i + 1;
+			return 0;
+		} else
+			i = len;
+	}
+	/*
+	 * No match, return that we scanned the whole area.
+	 */
+	xfs_trans_brelse(tp, bp);
+	*rtblock = start - i + 1;
+	return 0;
+}
+
+/*
+ * Searching forward from start to limit, find the first block whose
+ * allocated/free state is different from start's.
+ */
+int
+xfs_rtfind_forw(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	start,		/* starting block to look at */
+	xfs_rtblock_t	limit,		/* last block to look at */
+	xfs_rtblock_t	*rtblock)	/* out: start block found */
+{
+	xfs_rtword_t	*b;		/* current word in buffer */
+	int		bit;		/* bit number in the word */
+	xfs_rtblock_t	block;		/* bitmap block number */
+	xfs_buf_t	*bp;		/* buf for the block */
+	xfs_rtword_t	*bufp;		/* starting word in buffer */
+	int		error;		/* error value */
+	xfs_rtblock_t	i;		/* current bit number rel. to start */
+	xfs_rtblock_t	lastbit;	/* last useful bit in the word */
+	xfs_rtblock_t	len;		/* length of inspected area */
+	xfs_rtword_t	mask;		/* mask of relevant bits for value */
+	xfs_rtword_t	want;		/* mask for "good" values */
+	xfs_rtword_t	wdiff;		/* difference from wanted value */
+	int		word;		/* word number in the buffer */
+
+	/*
+	 * Compute and read in starting bitmap block for starting block.
+	 */
+	block = XFS_BITTOBLOCK(mp, start);
+	error = xfs_rtbuf_get(mp, tp, block, 0, &bp);
+	if (error) {
+		return error;
+	}
+	bufp = bp->b_addr;
+	/*
+	 * Get the first word's index & point to it.
+	 */
+	word = XFS_BITTOWORD(mp, start);
+	b = &bufp[word];
+	bit = (int)(start & (XFS_NBWORD - 1));
+	len = limit - start + 1;
+	/*
+	 * Compute match value, based on the bit at start: if 1 (free)
+	 * then all-ones, else all-zeroes.
+	 */
+	want = (*b & ((xfs_rtword_t)1 << bit)) ? -1 : 0;
+	/*
+	 * If the starting position is not word-aligned, deal with the
+	 * partial word.
+	 */
+	if (bit) {
+		/*
+		 * Calculate last (rightmost) bit number to look at,
+		 * and mask for all the relevant bits in this word.
+		 */
+		lastbit = XFS_RTMIN(bit + len, XFS_NBWORD);
+		mask = (((xfs_rtword_t)1 << (lastbit - bit)) - 1) << bit;
+		/*
+		 * Calculate the difference between the value there
+		 * and what we're looking for.
+		 */
+		if ((wdiff = (*b ^ want) & mask)) {
+			/*
+			 * Different.  Mark where we are and return.
+			 */
+			xfs_trans_brelse(tp, bp);
+			i = XFS_RTLOBIT(wdiff) - bit;
+			*rtblock = start + i - 1;
+			return 0;
+		}
+		i = lastbit - bit;
+		/*
+		 * Go on to next block if that's where the next word is
+		 * and we need the next word.
+		 */
+		if (++word == XFS_BLOCKWSIZE(mp) && i < len) {
+			/*
+			 * If done with this block, get the previous one.
+			 */
+			xfs_trans_brelse(tp, bp);
+			error = xfs_rtbuf_get(mp, tp, ++block, 0, &bp);
+			if (error) {
+				return error;
+			}
+			b = bufp = bp->b_addr;
+			word = 0;
+		} else {
+			/*
+			 * Go on to the previous word in the buffer.
+			 */
+			b++;
+		}
+	} else {
+		/*
+		 * Starting on a word boundary, no partial word.
+		 */
+		i = 0;
+	}
+	/*
+	 * Loop over whole words in buffers.  When we use up one buffer
+	 * we move on to the next one.
+	 */
+	while (len - i >= XFS_NBWORD) {
+		/*
+		 * Compute difference between actual and desired value.
+		 */
+		if ((wdiff = *b ^ want)) {
+			/*
+			 * Different, mark where we are and return.
+			 */
+			xfs_trans_brelse(tp, bp);
+			i += XFS_RTLOBIT(wdiff);
+			*rtblock = start + i - 1;
+			return 0;
+		}
+		i += XFS_NBWORD;
+		/*
+		 * Go on to next block if that's where the next word is
+		 * and we need the next word.
+		 */
+		if (++word == XFS_BLOCKWSIZE(mp) && i < len) {
+			/*
+			 * If done with this block, get the next one.
+			 */
+			xfs_trans_brelse(tp, bp);
+			error = xfs_rtbuf_get(mp, tp, ++block, 0, &bp);
+			if (error) {
+				return error;
+			}
+			b = bufp = bp->b_addr;
+			word = 0;
+		} else {
+			/*
+			 * Go on to the next word in the buffer.
+			 */
+			b++;
+		}
+	}
+	/*
+	 * If not ending on a word boundary, deal with the last
+	 * (partial) word.
+	 */
+	if ((lastbit = len - i)) {
+		/*
+		 * Calculate mask for all the relevant bits in this word.
+		 */
+		mask = ((xfs_rtword_t)1 << lastbit) - 1;
+		/*
+		 * Compute difference between actual and desired value.
+		 */
+		if ((wdiff = (*b ^ want) & mask)) {
+			/*
+			 * Different, mark where we are and return.
+			 */
+			xfs_trans_brelse(tp, bp);
+			i += XFS_RTLOBIT(wdiff);
+			*rtblock = start + i - 1;
+			return 0;
+		} else
+			i = len;
+	}
+	/*
+	 * No match, return that we scanned the whole area.
+	 */
+	xfs_trans_brelse(tp, bp);
+	*rtblock = start + i - 1;
+	return 0;
+}
+
+/*
+ * Read and modify the summary information for a given extent size,
+ * bitmap block combination.
+ * Keeps track of a current summary block, so we don't keep reading
+ * it from the buffer cache.
+ */
+int
+xfs_rtmodify_summary(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	int		log,		/* log2 of extent size */
+	xfs_rtblock_t	bbno,		/* bitmap block number */
+	int		delta,		/* change to make to summary info */
+	xfs_buf_t	**rbpp,		/* in/out: summary block buffer */
+	xfs_fsblock_t	*rsb)		/* in/out: summary block number */
+{
+	xfs_buf_t	*bp;		/* buffer for the summary block */
+	int		error;		/* error value */
+	xfs_fsblock_t	sb;		/* summary fsblock */
+	int		so;		/* index into the summary file */
+	xfs_suminfo_t	*sp;		/* pointer to returned data */
+
+	/*
+	 * Compute entry number in the summary file.
+	 */
+	so = XFS_SUMOFFS(mp, log, bbno);
+	/*
+	 * Compute the block number in the summary file.
+	 */
+	sb = XFS_SUMOFFSTOBLOCK(mp, so);
+	/*
+	 * If we have an old buffer, and the block number matches, use that.
+	 */
+	if (rbpp && *rbpp && *rsb == sb)
+		bp = *rbpp;
+	/*
+	 * Otherwise we have to get the buffer.
+	 */
+	else {
+		/*
+		 * If there was an old one, get rid of it first.
+		 */
+		if (rbpp && *rbpp)
+			xfs_trans_brelse(tp, *rbpp);
+		error = xfs_rtbuf_get(mp, tp, sb, 1, &bp);
+		if (error) {
+			return error;
+		}
+		/*
+		 * Remember this buffer and block for the next call.
+		 */
+		if (rbpp) {
+			*rbpp = bp;
+			*rsb = sb;
+		}
+	}
+	/*
+	 * Point to the summary information, modify and log it.
+	 */
+	sp = XFS_SUMPTR(mp, bp, so);
+	*sp += delta;
+	xfs_trans_log_buf(tp, bp, (uint)((char *)sp - (char *)bp->b_addr),
+		(uint)((char *)sp - (char *)bp->b_addr + sizeof(*sp) - 1));
+	return 0;
+}
+
+/*
+ * Set the given range of bitmap bits to the given value.
+ * Do whatever I/O and logging is required.
+ */
+int
+xfs_rtmodify_range(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	start,		/* starting block to modify */
+	xfs_extlen_t	len,		/* length of extent to modify */
+	int		val)		/* 1 for free, 0 for allocated */
+{
+	xfs_rtword_t	*b;		/* current word in buffer */
+	int		bit;		/* bit number in the word */
+	xfs_rtblock_t	block;		/* bitmap block number */
+	xfs_buf_t	*bp;		/* buf for the block */
+	xfs_rtword_t	*bufp;		/* starting word in buffer */
+	int		error;		/* error value */
+	xfs_rtword_t	*first;		/* first used word in the buffer */
+	int		i;		/* current bit number rel. to start */
+	int		lastbit;	/* last useful bit in word */
+	xfs_rtword_t	mask;		/* mask o frelevant bits for value */
+	int		word;		/* word number in the buffer */
+
+	/*
+	 * Compute starting bitmap block number.
+	 */
+	block = XFS_BITTOBLOCK(mp, start);
+	/*
+	 * Read the bitmap block, and point to its data.
+	 */
+	error = xfs_rtbuf_get(mp, tp, block, 0, &bp);
+	if (error) {
+		return error;
+	}
+	bufp = bp->b_addr;
+	/*
+	 * Compute the starting word's address, and starting bit.
+	 */
+	word = XFS_BITTOWORD(mp, start);
+	first = b = &bufp[word];
+	bit = (int)(start & (XFS_NBWORD - 1));
+	/*
+	 * 0 (allocated) => all zeroes; 1 (free) => all ones.
+	 */
+	val = -val;
+	/*
+	 * If not starting on a word boundary, deal with the first
+	 * (partial) word.
+	 */
+	if (bit) {
+		/*
+		 * Compute first bit not changed and mask of relevant bits.
+		 */
+		lastbit = XFS_RTMIN(bit + len, XFS_NBWORD);
+		mask = (((xfs_rtword_t)1 << (lastbit - bit)) - 1) << bit;
+		/*
+		 * Set/clear the active bits.
+		 */
+		if (val)
+			*b |= mask;
+		else
+			*b &= ~mask;
+		i = lastbit - bit;
+		/*
+		 * Go on to the next block if that's where the next word is
+		 * and we need the next word.
+		 */
+		if (++word == XFS_BLOCKWSIZE(mp) && i < len) {
+			/*
+			 * Log the changed part of this block.
+			 * Get the next one.
+			 */
+			xfs_trans_log_buf(tp, bp,
+				(uint)((char *)first - (char *)bufp),
+				(uint)((char *)b - (char *)bufp));
+			error = xfs_rtbuf_get(mp, tp, ++block, 0, &bp);
+			if (error) {
+				return error;
+			}
+			first = b = bufp = bp->b_addr;
+			word = 0;
+		} else {
+			/*
+			 * Go on to the next word in the buffer
+			 */
+			b++;
+		}
+	} else {
+		/*
+		 * Starting on a word boundary, no partial word.
+		 */
+		i = 0;
+	}
+	/*
+	 * Loop over whole words in buffers.  When we use up one buffer
+	 * we move on to the next one.
+	 */
+	while (len - i >= XFS_NBWORD) {
+		/*
+		 * Set the word value correctly.
+		 */
+		*b = val;
+		i += XFS_NBWORD;
+		/*
+		 * Go on to the next block if that's where the next word is
+		 * and we need the next word.
+		 */
+		if (++word == XFS_BLOCKWSIZE(mp) && i < len) {
+			/*
+			 * Log the changed part of this block.
+			 * Get the next one.
+			 */
+			xfs_trans_log_buf(tp, bp,
+				(uint)((char *)first - (char *)bufp),
+				(uint)((char *)b - (char *)bufp));
+			error = xfs_rtbuf_get(mp, tp, ++block, 0, &bp);
+			if (error) {
+				return error;
+			}
+			first = b = bufp = bp->b_addr;
+			word = 0;
+		} else {
+			/*
+			 * Go on to the next word in the buffer
+			 */
+			b++;
+		}
+	}
+	/*
+	 * If not ending on a word boundary, deal with the last
+	 * (partial) word.
+	 */
+	if ((lastbit = len - i)) {
+		/*
+		 * Compute a mask of relevant bits.
+		 */
+		bit = 0;
+		mask = ((xfs_rtword_t)1 << lastbit) - 1;
+		/*
+		 * Set/clear the active bits.
+		 */
+		if (val)
+			*b |= mask;
+		else
+			*b &= ~mask;
+		b++;
+	}
+	/*
+	 * Log any remaining changed bytes.
+	 */
+	if (b > first)
+		xfs_trans_log_buf(tp, bp, (uint)((char *)first - (char *)bufp),
+			(uint)((char *)b - (char *)bufp - 1));
+	return 0;
+}
+
+/*
+ * Mark an extent specified by start and len freed.
+ * Updates all the summary information as well as the bitmap.
+ */
+int
+xfs_rtfree_range(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	start,		/* starting block to free */
+	xfs_extlen_t	len,		/* length to free */
+	xfs_buf_t	**rbpp,		/* in/out: summary block buffer */
+	xfs_fsblock_t	*rsb)		/* in/out: summary block number */
+{
+	xfs_rtblock_t	end;		/* end of the freed extent */
+	int		error;		/* error value */
+	xfs_rtblock_t	postblock;	/* first block freed > end */
+	xfs_rtblock_t	preblock;	/* first block freed < start */
+
+	end = start + len - 1;
+	/*
+	 * Modify the bitmap to mark this extent freed.
+	 */
+	error = xfs_rtmodify_range(mp, tp, start, len, 1);
+	if (error) {
+		return error;
+	}
+	/*
+	 * Assume we're freeing out of the middle of an allocated extent.
+	 * We need to find the beginning and end of the extent so we can
+	 * properly update the summary.
+	 */
+	error = xfs_rtfind_back(mp, tp, start, 0, &preblock);
+	if (error) {
+		return error;
+	}
+	/*
+	 * Find the next allocated block (end of allocated extent).
+	 */
+	error = xfs_rtfind_forw(mp, tp, end, mp->m_sb.sb_rextents - 1,
+		&postblock);
+	if (error)
+		return error;
+	/*
+	 * If there are blocks not being freed at the front of the
+	 * old extent, add summary data for them to be allocated.
+	 */
+	if (preblock < start) {
+		error = xfs_rtmodify_summary(mp, tp,
+			XFS_RTBLOCKLOG(start - preblock),
+			XFS_BITTOBLOCK(mp, preblock), -1, rbpp, rsb);
+		if (error) {
+			return error;
+		}
+	}
+	/*
+	 * If there are blocks not being freed at the end of the
+	 * old extent, add summary data for them to be allocated.
+	 */
+	if (postblock > end) {
+		error = xfs_rtmodify_summary(mp, tp,
+			XFS_RTBLOCKLOG(postblock - end),
+			XFS_BITTOBLOCK(mp, end + 1), -1, rbpp, rsb);
+		if (error) {
+			return error;
+		}
+	}
+	/*
+	 * Increment the summary information corresponding to the entire
+	 * (new) free extent.
+	 */
+	error = xfs_rtmodify_summary(mp, tp,
+		XFS_RTBLOCKLOG(postblock + 1 - preblock),
+		XFS_BITTOBLOCK(mp, preblock), 1, rbpp, rsb);
+	return error;
+}
+
+/*
+ * Check that the given range is either all allocated (val = 0) or
+ * all free (val = 1).
+ */
+int
+xfs_rtcheck_range(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	start,		/* starting block number of extent */
+	xfs_extlen_t	len,		/* length of extent */
+	int		val,		/* 1 for free, 0 for allocated */
+	xfs_rtblock_t	*new,		/* out: first block not matching */
+	int		*stat)		/* out: 1 for matches, 0 for not */
+{
+	xfs_rtword_t	*b;		/* current word in buffer */
+	int		bit;		/* bit number in the word */
+	xfs_rtblock_t	block;		/* bitmap block number */
+	xfs_buf_t	*bp;		/* buf for the block */
+	xfs_rtword_t	*bufp;		/* starting word in buffer */
+	int		error;		/* error value */
+	xfs_rtblock_t	i;		/* current bit number rel. to start */
+	xfs_rtblock_t	lastbit;	/* last useful bit in word */
+	xfs_rtword_t	mask;		/* mask of relevant bits for value */
+	xfs_rtword_t	wdiff;		/* difference from wanted value */
+	int		word;		/* word number in the buffer */
+
+	/*
+	 * Compute starting bitmap block number
+	 */
+	block = XFS_BITTOBLOCK(mp, start);
+	/*
+	 * Read the bitmap block.
+	 */
+	error = xfs_rtbuf_get(mp, tp, block, 0, &bp);
+	if (error) {
+		return error;
+	}
+	bufp = bp->b_addr;
+	/*
+	 * Compute the starting word's address, and starting bit.
+	 */
+	word = XFS_BITTOWORD(mp, start);
+	b = &bufp[word];
+	bit = (int)(start & (XFS_NBWORD - 1));
+	/*
+	 * 0 (allocated) => all zero's; 1 (free) => all one's.
+	 */
+	val = -val;
+	/*
+	 * If not starting on a word boundary, deal with the first
+	 * (partial) word.
+	 */
+	if (bit) {
+		/*
+		 * Compute first bit not examined.
+		 */
+		lastbit = XFS_RTMIN(bit + len, XFS_NBWORD);
+		/*
+		 * Mask of relevant bits.
+		 */
+		mask = (((xfs_rtword_t)1 << (lastbit - bit)) - 1) << bit;
+		/*
+		 * Compute difference between actual and desired value.
+		 */
+		if ((wdiff = (*b ^ val) & mask)) {
+			/*
+			 * Different, compute first wrong bit and return.
+			 */
+			xfs_trans_brelse(tp, bp);
+			i = XFS_RTLOBIT(wdiff) - bit;
+			*new = start + i;
+			*stat = 0;
+			return 0;
+		}
+		i = lastbit - bit;
+		/*
+		 * Go on to next block if that's where the next word is
+		 * and we need the next word.
+		 */
+		if (++word == XFS_BLOCKWSIZE(mp) && i < len) {
+			/*
+			 * If done with this block, get the next one.
+			 */
+			xfs_trans_brelse(tp, bp);
+			error = xfs_rtbuf_get(mp, tp, ++block, 0, &bp);
+			if (error) {
+				return error;
+			}
+			b = bufp = bp->b_addr;
+			word = 0;
+		} else {
+			/*
+			 * Go on to the next word in the buffer.
+			 */
+			b++;
+		}
+	} else {
+		/*
+		 * Starting on a word boundary, no partial word.
+		 */
+		i = 0;
+	}
+	/*
+	 * Loop over whole words in buffers.  When we use up one buffer
+	 * we move on to the next one.
+	 */
+	while (len - i >= XFS_NBWORD) {
+		/*
+		 * Compute difference between actual and desired value.
+		 */
+		if ((wdiff = *b ^ val)) {
+			/*
+			 * Different, compute first wrong bit and return.
+			 */
+			xfs_trans_brelse(tp, bp);
+			i += XFS_RTLOBIT(wdiff);
+			*new = start + i;
+			*stat = 0;
+			return 0;
+		}
+		i += XFS_NBWORD;
+		/*
+		 * Go on to next block if that's where the next word is
+		 * and we need the next word.
+		 */
+		if (++word == XFS_BLOCKWSIZE(mp) && i < len) {
+			/*
+			 * If done with this block, get the next one.
+			 */
+			xfs_trans_brelse(tp, bp);
+			error = xfs_rtbuf_get(mp, tp, ++block, 0, &bp);
+			if (error) {
+				return error;
+			}
+			b = bufp = bp->b_addr;
+			word = 0;
+		} else {
+			/*
+			 * Go on to the next word in the buffer.
+			 */
+			b++;
+		}
+	}
+	/*
+	 * If not ending on a word boundary, deal with the last
+	 * (partial) word.
+	 */
+	if ((lastbit = len - i)) {
+		/*
+		 * Mask of relevant bits.
+		 */
+		mask = ((xfs_rtword_t)1 << lastbit) - 1;
+		/*
+		 * Compute difference between actual and desired value.
+		 */
+		if ((wdiff = (*b ^ val) & mask)) {
+			/*
+			 * Different, compute first wrong bit and return.
+			 */
+			xfs_trans_brelse(tp, bp);
+			i += XFS_RTLOBIT(wdiff);
+			*new = start + i;
+			*stat = 0;
+			return 0;
+		} else
+			i = len;
+	}
+	/*
+	 * Successful, return.
+	 */
+	xfs_trans_brelse(tp, bp);
+	*new = start + i;
+	*stat = 1;
+	return 0;
+}
+
+#ifdef DEBUG
+/*
+ * Check that the given extent (block range) is allocated already.
+ */
+STATIC int				/* error */
+xfs_rtcheck_alloc_range(
+	xfs_mount_t	*mp,		/* file system mount point */
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	bno,		/* starting block number of extent */
+	xfs_extlen_t	len)		/* length of extent */
+{
+	xfs_rtblock_t	new;		/* dummy for xfs_rtcheck_range */
+	int		stat;
+	int		error;
+
+	error = xfs_rtcheck_range(mp, tp, bno, len, 0, &new, &stat);
+	if (error)
+		return error;
+	ASSERT(stat);
+	return 0;
+}
+#else
+#define xfs_rtcheck_alloc_range(m,t,b,l)	(0)
+#endif
+/*
+ * Free an extent in the realtime subvolume.  Length is expressed in
+ * realtime extents, as is the block number.
+ */
+int					/* error */
+xfs_rtfree_extent(
+	xfs_trans_t	*tp,		/* transaction pointer */
+	xfs_rtblock_t	bno,		/* starting block number to free */
+	xfs_extlen_t	len)		/* length of extent freed */
+{
+	int		error;		/* error value */
+	xfs_mount_t	*mp;		/* file system mount structure */
+	xfs_fsblock_t	sb;		/* summary file block number */
+	xfs_buf_t	*sumbp = NULL;	/* summary file block buffer */
+
+	mp = tp->t_mountp;
+
+	ASSERT(mp->m_rbmip->i_itemp != NULL);
+	ASSERT(xfs_isilocked(mp->m_rbmip, XFS_ILOCK_EXCL));
+
+	error = xfs_rtcheck_alloc_range(mp, tp, bno, len);
+	if (error)
+		return error;
+
+	/*
+	 * Free the range of realtime blocks.
+	 */
+	error = xfs_rtfree_range(mp, tp, bno, len, &sumbp, &sb);
+	if (error) {
+		return error;
+	}
+	/*
+	 * Mark more blocks free in the superblock.
+	 */
+	xfs_trans_mod_sb(tp, XFS_TRANS_SB_FREXTENTS, (long)len);
+	/*
+	 * If we've now freed all the blocks, reset the file sequence
+	 * number to 0.
+	 */
+	if (tp->t_frextents_delta + mp->m_sb.sb_frextents ==
+	    mp->m_sb.sb_rextents) {
+		if (!(mp->m_rbmip->i_d.di_flags & XFS_DIFLAG_NEWRTBM))
+			mp->m_rbmip->i_d.di_flags |= XFS_DIFLAG_NEWRTBM;
+		*(__uint64_t *)&mp->m_rbmip->i_d.di_atime = 0;
+		xfs_trans_log_inode(tp, mp->m_rbmip, XFS_ILOG_CORE);
+	}
+	return 0;
+}
+
-- 
cgit 


From 4c54b6cf28bcd942d53d8504c4fb45bb3637f7da Mon Sep 17 00:00:00 2001
From: Thomas Glanzmann <thomas@glanzmann.de>
Date: Mon, 7 Oct 2013 23:12:11 +0200
Subject: iscsi-target: Add new TPG attribute

Add a new TPG attribute demo_mode_discovery which is enabled by default.

Signed-off-by: Thomas Glanzmann <thomas@glanzmann.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/iscsi/iscsi_target_configfs.c |  6 ++++++
 drivers/target/iscsi/iscsi_target_core.h     |  2 ++
 drivers/target/iscsi/iscsi_target_tpg.c      | 20 ++++++++++++++++++++
 drivers/target/iscsi/iscsi_target_tpg.h      |  1 +
 4 files changed, 29 insertions(+)

diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index 59a0241a016d..1eec37c47662 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -1041,6 +1041,11 @@ TPG_ATTR(demo_mode_write_protect, S_IRUGO | S_IWUSR);
  */
 DEF_TPG_ATTRIB(prod_mode_write_protect);
 TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_tpg_attrib_s_demo_mode_discovery,
+ */
+DEF_TPG_ATTRIB(demo_mode_discovery);
+TPG_ATTR(demo_mode_discovery, S_IRUGO | S_IWUSR);
 
 static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
 	&iscsi_tpg_attrib_authentication.attr,
@@ -1051,6 +1056,7 @@ static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
 	&iscsi_tpg_attrib_cache_dynamic_acls.attr,
 	&iscsi_tpg_attrib_demo_mode_write_protect.attr,
 	&iscsi_tpg_attrib_prod_mode_write_protect.attr,
+	&iscsi_tpg_attrib_demo_mode_discovery.attr,
 	NULL,
 };
 
diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h
index cf8a1921a392..b03ee2ff31e5 100644
--- a/drivers/target/iscsi/iscsi_target_core.h
+++ b/drivers/target/iscsi/iscsi_target_core.h
@@ -58,6 +58,7 @@
 #define TA_DEMO_MODE_WRITE_PROTECT	1
 /* Disabled by default in production mode w/ explict ACLs */
 #define TA_PROD_MODE_WRITE_PROTECT	0
+#define TA_DEMO_MODE_DISCOVERY		1
 #define TA_CACHE_CORE_NPS		0
 
 
@@ -764,6 +765,7 @@ struct iscsi_tpg_attrib {
 	u32			default_cmdsn_depth;
 	u32			demo_mode_write_protect;
 	u32			prod_mode_write_protect;
+	u32			demo_mode_discovery;
 	struct iscsi_portal_group *tpg;
 };
 
diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c
index 1ef5df03ff5c..98ccf0bff546 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.c
+++ b/drivers/target/iscsi/iscsi_target_tpg.c
@@ -223,6 +223,7 @@ static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *tpg)
 	a->cache_dynamic_acls = TA_CACHE_DYNAMIC_ACLS;
 	a->demo_mode_write_protect = TA_DEMO_MODE_WRITE_PROTECT;
 	a->prod_mode_write_protect = TA_PROD_MODE_WRITE_PROTECT;
+	a->demo_mode_discovery = TA_DEMO_MODE_DISCOVERY;
 }
 
 int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_group *tpg)
@@ -820,3 +821,22 @@ int iscsit_ta_prod_mode_write_protect(
 
 	return 0;
 }
+
+int iscsit_ta_demo_mode_discovery(
+	struct iscsi_portal_group *tpg,
+	u32 flag)
+{
+	struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
+
+	if ((flag != 0) && (flag != 1)) {
+		pr_err("Illegal value %d\n", flag);
+		return -EINVAL;
+	}
+
+	a->demo_mode_discovery = flag;
+	pr_debug("iSCSI_TPG[%hu] - Demo Mode Discovery bit:"
+		" %s\n", tpg->tpgt, (a->demo_mode_discovery) ?
+		"ON" : "OFF");
+
+	return 0;
+}
diff --git a/drivers/target/iscsi/iscsi_target_tpg.h b/drivers/target/iscsi/iscsi_target_tpg.h
index b77693e2c209..3e8ce8644082 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.h
+++ b/drivers/target/iscsi/iscsi_target_tpg.h
@@ -37,5 +37,6 @@ extern int iscsit_ta_default_cmdsn_depth(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_cache_dynamic_acls(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_demo_mode_write_protect(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_prod_mode_write_protect(struct iscsi_portal_group *, u32);
+extern int iscsit_ta_demo_mode_discovery(struct iscsi_portal_group *, u32);
 
 #endif /* ISCSI_TARGET_TPG_H */
-- 
cgit 


From b3fde035714b83ef7ddbbd5a520a2150d990349b Mon Sep 17 00:00:00 2001
From: Thomas Glanzmann <thomas@glanzmann.de>
Date: Mon, 7 Oct 2013 23:13:02 +0200
Subject: target: Export symbol core_tpg_check_initiator_node_acl

Export symbol core_tpg_check_initiator_node_acl and move prototype from the
private drivers/target/target_core_internal.h to the public
include/target/target_core_fabric.h

Signed-off-by: Thomas Glanzmann <thomas@glanzmann.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/target_core_internal.h | 2 --
 drivers/target/target_core_tpg.c      | 1 +
 include/target/target_core_fabric.h   | 2 ++
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/target/target_core_internal.h b/drivers/target/target_core_internal.h
index 579128abe3f5..889af4df8562 100644
--- a/drivers/target/target_core_internal.h
+++ b/drivers/target/target_core_internal.h
@@ -75,8 +75,6 @@ extern struct se_device *g_lun0_dev;
 
 struct se_node_acl *__core_tpg_get_initiator_node_acl(struct se_portal_group *tpg,
 		const char *);
-struct se_node_acl *core_tpg_get_initiator_node_acl(struct se_portal_group *tpg,
-		unsigned char *);
 void	core_tpg_add_node_to_devs(struct se_node_acl *, struct se_portal_group *);
 void	core_tpg_wait_for_nacl_pr_ref(struct se_node_acl *);
 struct se_lun *core_tpg_pre_addlun(struct se_portal_group *, u32);
diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c
index b9a6ec0aa5fe..ec992208dc55 100644
--- a/drivers/target/target_core_tpg.c
+++ b/drivers/target/target_core_tpg.c
@@ -116,6 +116,7 @@ struct se_node_acl *core_tpg_get_initiator_node_acl(
 
 	return acl;
 }
+EXPORT_SYMBOL(core_tpg_get_initiator_node_acl);
 
 /*	core_tpg_add_node_to_devs():
  *
diff --git a/include/target/target_core_fabric.h b/include/target/target_core_fabric.h
index 882b650e32be..4cf4fda404a3 100644
--- a/include/target/target_core_fabric.h
+++ b/include/target/target_core_fabric.h
@@ -137,6 +137,8 @@ void	transport_generic_request_failure(struct se_cmd *, sense_reason_t);
 void	__target_execute_cmd(struct se_cmd *);
 int	transport_lookup_tmr_lun(struct se_cmd *, u32);
 
+struct se_node_acl *core_tpg_get_initiator_node_acl(struct se_portal_group *tpg,
+		unsigned char *);
 struct se_node_acl *core_tpg_check_initiator_node_acl(struct se_portal_group *,
 		unsigned char *);
 void	core_tpg_clear_object_luns(struct se_portal_group *);
-- 
cgit 


From 2dd1d53fe004cd3b1e93e96508cfe637e6e31ef5 Mon Sep 17 00:00:00 2001
From: Thomas Glanzmann <thomas@glanzmann.de>
Date: Mon, 7 Oct 2013 23:13:46 +0200
Subject: iscsi-target: Implement demo_mode_discovery logic

If demo_mode_discovery=0 and generate_node_acls=0 (demo mode dislabed) do
not return TargetName+TargetAddress unless a NodeACL exists.

Signed-off-by: Thomas Glanzmann <thomas@glanzmann.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/iscsi/iscsi_target.c | 39 ++++++++++++++++++++++++++++---------
 1 file changed, 30 insertions(+), 9 deletions(-)

diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index 934b5b9b7cf6..e183352a0645 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -3369,6 +3369,7 @@ static int iscsit_build_sendtargets_response(struct iscsi_cmd *cmd)
 	struct iscsi_tiqn *tiqn;
 	struct iscsi_tpg_np *tpg_np;
 	int buffer_len, end_of_buf = 0, len = 0, payload_len = 0;
+	int target_name_printed;
 	unsigned char buf[ISCSI_IQN_LEN+12]; /* iqn + "TargetName=" + \0 */
 	unsigned char *text_in = cmd->text_in_ptr, *text_ptr = NULL;
 
@@ -3406,19 +3407,23 @@ static int iscsit_build_sendtargets_response(struct iscsi_cmd *cmd)
 			continue;
 		}
 
-		len = sprintf(buf, "TargetName=%s", tiqn->tiqn);
-		len += 1;
-
-		if ((len + payload_len) > buffer_len) {
-			end_of_buf = 1;
-			goto eob;
-		}
-		memcpy(payload + payload_len, buf, len);
-		payload_len += len;
+		target_name_printed = 0;
 
 		spin_lock(&tiqn->tiqn_tpg_lock);
 		list_for_each_entry(tpg, &tiqn->tiqn_tpg_list, tpg_list) {
 
+			/* If demo_mode_discovery=0 and generate_node_acls=0
+			 * (demo mode dislabed) do not return
+			 * TargetName+TargetAddress unless a NodeACL exists.
+			 */
+
+			if ((tpg->tpg_attrib.generate_node_acls == 0) &&
+			    (tpg->tpg_attrib.demo_mode_discovery == 0) &&
+			    (!core_tpg_get_initiator_node_acl(&tpg->tpg_se_tpg,
+				cmd->conn->sess->sess_ops->InitiatorName))) {
+				continue;
+			}
+
 			spin_lock(&tpg->tpg_state_lock);
 			if ((tpg->tpg_state == TPG_STATE_FREE) ||
 			    (tpg->tpg_state == TPG_STATE_INACTIVE)) {
@@ -3433,6 +3438,22 @@ static int iscsit_build_sendtargets_response(struct iscsi_cmd *cmd)
 				struct iscsi_np *np = tpg_np->tpg_np;
 				bool inaddr_any = iscsit_check_inaddr_any(np);
 
+				if (!target_name_printed) {
+					len = sprintf(buf, "TargetName=%s",
+						      tiqn->tiqn);
+					len += 1;
+
+					if ((len + payload_len) > buffer_len) {
+						spin_unlock(&tpg->tpg_np_lock);
+						spin_unlock(&tiqn->tiqn_tpg_lock);
+						end_of_buf = 1;
+						goto eob;
+					}
+					memcpy(payload + payload_len, buf, len);
+					payload_len += len;
+					target_name_printed = 1;
+				}
+
 				len = sprintf(buf, "TargetAddress="
 					"%s:%hu,%hu",
 					(inaddr_any == false) ?
-- 
cgit 


From 055032142c42d2821c4aa617915292d6a08d56fc Mon Sep 17 00:00:00 2001
From: Nicolin Chen <b42378@freescale.com>
Date: Wed, 23 Oct 2013 11:47:43 +0800
Subject: ALSA: Add SoC on-chip internal ram support for DMA buffer allocation

Now it's quite common that an SoC contains its on-chip internal RAM.
By using this RAM space for DMA buffer during audio playback/record,
we can shutdown the voltage for external RAM to save power.

So add new DEV type with iram malloc()/free() and accordingly modify
current default mmap() for the iram circumstance.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/memalloc.h |  1 +
 sound/core/memalloc.c    | 52 ++++++++++++++++++++++++++++++++++++++++++++++++
 sound/core/pcm_native.c  |  6 ++++++
 3 files changed, 59 insertions(+)

diff --git a/include/sound/memalloc.h b/include/sound/memalloc.h
index cf15b8213df7..510aec437f72 100644
--- a/include/sound/memalloc.h
+++ b/include/sound/memalloc.h
@@ -52,6 +52,7 @@ struct snd_dma_device {
 #else
 #define SNDRV_DMA_TYPE_DEV_SG	SNDRV_DMA_TYPE_DEV /* no SG-buf support */
 #endif
+#define SNDRV_DMA_TYPE_DEV_IRAM		4	/* generic device iram-buffer */
 
 /*
  * info for buffer allocation
diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c
index bdf826f4fe0c..18c1d4759ccb 100644
--- a/sound/core/memalloc.c
+++ b/sound/core/memalloc.c
@@ -30,6 +30,7 @@
 #include <linux/seq_file.h>
 #include <asm/uaccess.h>
 #include <linux/dma-mapping.h>
+#include <linux/genalloc.h>
 #include <linux/moduleparam.h>
 #include <linux/mutex.h>
 #include <sound/memalloc.h>
@@ -157,6 +158,46 @@ static void snd_free_dev_pages(struct device *dev, size_t size, void *ptr,
 	dec_snd_pages(pg);
 	dma_free_coherent(dev, PAGE_SIZE << pg, ptr, dma);
 }
+
+/**
+ * snd_malloc_dev_iram - allocate memory from on-chip internal ram
+ * @dmab: buffer allocation record to store the allocated data
+ * @size: number of bytes to allocate from the iram
+ *
+ * This function requires iram phandle provided via of_node
+ */
+void snd_malloc_dev_iram(struct snd_dma_buffer *dmab, size_t size)
+{
+	struct device *dev = dmab->dev.dev;
+	struct gen_pool *pool = NULL;
+
+	if (dev->of_node)
+		pool = of_get_named_gen_pool(dev->of_node, "iram", 0);
+
+	if (!pool)
+		return;
+
+	/* Assign the pool into private_data field */
+	dmab->private_data = pool;
+
+	dmab->area = (void *)gen_pool_alloc(pool, size);
+	if (!dmab->area)
+		return;
+
+	dmab->addr = gen_pool_virt_to_phys(pool, (unsigned long)dmab->area);
+}
+
+/**
+ * snd_free_dev_iram - free allocated specific memory from on-chip internal ram
+ * @dmab: buffer allocation record to store the allocated data
+ */
+void snd_free_dev_iram(struct snd_dma_buffer *dmab)
+{
+	struct gen_pool *pool = dmab->private_data;
+
+	if (pool && dmab->area)
+		gen_pool_free(pool, (unsigned long)dmab->area, dmab->bytes);
+}
 #endif /* CONFIG_HAS_DMA */
 
 /*
@@ -197,6 +238,14 @@ int snd_dma_alloc_pages(int type, struct device *device, size_t size,
 		dmab->addr = 0;
 		break;
 #ifdef CONFIG_HAS_DMA
+	case SNDRV_DMA_TYPE_DEV_IRAM:
+		snd_malloc_dev_iram(dmab, size);
+		if (dmab->area)
+			break;
+		/* Internal memory might have limited size and no enough space,
+		 * so if we fail to malloc, try to fetch memory traditionally.
+		 */
+		dmab->dev.type = SNDRV_DMA_TYPE_DEV;
 	case SNDRV_DMA_TYPE_DEV:
 		dmab->area = snd_malloc_dev_pages(device, size, &dmab->addr);
 		break;
@@ -269,6 +318,9 @@ void snd_dma_free_pages(struct snd_dma_buffer *dmab)
 		snd_free_pages(dmab->area, dmab->bytes);
 		break;
 #ifdef CONFIG_HAS_DMA
+	case SNDRV_DMA_TYPE_DEV_IRAM:
+		snd_free_dev_iram(dmab);
+		break;
 	case SNDRV_DMA_TYPE_DEV:
 		snd_free_dev_pages(dmab->dev.dev, dmab->bytes, dmab->area, dmab->addr);
 		break;
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index a68d4c6d702c..513f0954d92e 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -3199,6 +3199,12 @@ int snd_pcm_lib_default_mmap(struct snd_pcm_substream *substream,
 			     struct vm_area_struct *area)
 {
 	area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
+	if (substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV_IRAM) {
+		area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
+		return remap_pfn_range(area, area->vm_start,
+				substream->dma_buffer.addr >> PAGE_SHIFT,
+				area->vm_end - area->vm_start, area->vm_page_prot);
+	}
 #ifdef ARCH_HAS_DMA_MMAP_COHERENT
 	if (!substream->ops->page &&
 	    substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV)
-- 
cgit 


From 702e304f198f631d746d2f383c54acc07d604700 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 24 Oct 2013 14:13:47 +0530
Subject: Documentation/pwm: Fix trivial typos

Fixes some trivial typos to improve readability.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---
 Documentation/pwm.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/pwm.txt b/Documentation/pwm.txt
index 1039b68fe9c6..93cb97974986 100644
--- a/Documentation/pwm.txt
+++ b/Documentation/pwm.txt
@@ -39,7 +39,7 @@ New users should use the pwm_get() function and pass to it the consumer
 device or a consumer name. pwm_put() is used to free the PWM device. Managed
 variants of these functions, devm_pwm_get() and devm_pwm_put(), also exist.
 
-After being requested a PWM has to be configured using:
+After being requested, a PWM has to be configured using:
 
 int pwm_config(struct pwm_device *pwm, int duty_ns, int period_ns);
 
@@ -94,7 +94,7 @@ for new drivers to use the generic PWM framework.
 A new PWM controller/chip can be added using pwmchip_add() and removed
 again with pwmchip_remove(). pwmchip_add() takes a filled in struct
 pwm_chip as argument which provides a description of the PWM chip, the
-number of PWM devices provider by the chip and the chip-specific
+number of PWM devices provided by the chip and the chip-specific
 implementation of the supported PWM operations to the framework.
 
 Locking
-- 
cgit 


From ea73b7ddf13548afd666373dc5e26ee7c812a3fe Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 19 Oct 2013 17:43:51 +0100
Subject: ASoC: dmaengine: Support custom channel names

Some devices have more than just simple TX and RX DMA channels, for example
modern Samsung I2S IPs support a secondary transmit DMA stream which is
mixed into the primary stream during playback. Allow such devices to
specify the names of the channels to be requested in their dma_data.

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
---
 include/sound/dmaengine_pcm.h         |  6 ++++++
 sound/soc/soc-generic-dmaengine-pcm.c | 13 ++++++++++++-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/include/sound/dmaengine_pcm.h b/include/sound/dmaengine_pcm.h
index 83b2c3e95a1a..15017311f2e9 100644
--- a/include/sound/dmaengine_pcm.h
+++ b/include/sound/dmaengine_pcm.h
@@ -61,6 +61,7 @@ struct dma_chan *snd_dmaengine_pcm_get_chan(struct snd_pcm_substream *substream)
  * @slave_id: Slave requester id for the DMA channel.
  * @filter_data: Custom DMA channel filter data, this will usually be used when
  * requesting the DMA channel.
+ * @chan_name: Custom channel name to use when requesting DMA channel.
  * @fifo_size: FIFO size of the DAI controller in bytes
  */
 struct snd_dmaengine_dai_dma_data {
@@ -69,6 +70,7 @@ struct snd_dmaengine_dai_dma_data {
 	u32 maxburst;
 	unsigned int slave_id;
 	void *filter_data;
+	const char *chan_name;
 	unsigned int fifo_size;
 };
 
@@ -98,6 +100,10 @@ void snd_dmaengine_pcm_set_config_from_dai_data(
  * playback.
  */
 #define SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX BIT(3)
+/*
+ * The PCM streams have custom channel names specified.
+ */
+#define SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME BIT(4)
 
 /**
  * struct snd_dmaengine_pcm_config - Configuration data for dmaengine based PCM
diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c
index 99f9495c1c40..793cd6c246f6 100644
--- a/sound/soc/soc-generic-dmaengine-pcm.c
+++ b/sound/soc/soc-generic-dmaengine-pcm.c
@@ -183,6 +183,8 @@ static int dmaengine_pcm_new(struct snd_soc_pcm_runtime *rtd)
 {
 	struct dmaengine_pcm *pcm = soc_platform_to_pcm(rtd->platform);
 	const struct snd_dmaengine_pcm_config *config = pcm->config;
+	struct device *dev = rtd->platform->dev;
+	struct snd_dmaengine_dai_dma_data *dma_data;
 	struct snd_pcm_substream *substream;
 	size_t prealloc_buffer_size;
 	size_t max_buffer_size;
@@ -203,6 +205,13 @@ static int dmaengine_pcm_new(struct snd_soc_pcm_runtime *rtd)
 		if (!substream)
 			continue;
 
+		dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
+
+		if (!pcm->chan[i] &&
+		    (pcm->flags & SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME))
+			pcm->chan[i] = dma_request_slave_channel(dev,
+				dma_data->chan_name);
+
 		if (!pcm->chan[i] && (pcm->flags & SND_DMAENGINE_PCM_FLAG_COMPAT)) {
 			pcm->chan[i] = dmaengine_pcm_compat_request_channel(rtd,
 				substream);
@@ -275,7 +284,9 @@ static void dmaengine_pcm_request_chan_of(struct dmaengine_pcm *pcm,
 {
 	unsigned int i;
 
-	if ((pcm->flags & SND_DMAENGINE_PCM_FLAG_NO_DT) || !dev->of_node)
+	if ((pcm->flags & (SND_DMAENGINE_PCM_FLAG_NO_DT |
+			   SND_DMAENGINE_PCM_FLAG_CUSTOM_CHANNEL_NAME)) ||
+	    !dev->of_node)
 		return;
 
 	if (pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) {
-- 
cgit 


From d706b1e4930fec12cc3b8d6e0e28d9e8321abcea Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Wed, 16 Oct 2013 17:33:59 +0800
Subject: regulator: da9052: Revert se apply_[reg|bit] with regmap based
 voltage_sel operations

This reverts commit 68f7506017ba67f1334cf086ffab76606f2c5ac4.

Michael reported that with this patch we loose the fix_io code path from
da9052_reg_update. Thus revert it.

Reported-by: Michael Grzeschik <mgr@pengutronix.de>
Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/da9052-regulator.c | 41 ++++++++++++++++++++++++++++++------
 1 file changed, 35 insertions(+), 6 deletions(-)

diff --git a/drivers/regulator/da9052-regulator.c b/drivers/regulator/da9052-regulator.c
index 1e4d483f6163..e4bbe64ca867 100644
--- a/drivers/regulator/da9052-regulator.c
+++ b/drivers/regulator/da9052-regulator.c
@@ -70,6 +70,7 @@ struct da9052_regulator_info {
 	int step_uV;
 	int min_uV;
 	int max_uV;
+	unsigned char activate_bit;
 };
 
 struct da9052_regulator {
@@ -209,6 +210,36 @@ static int da9052_map_voltage(struct regulator_dev *rdev,
 	return sel;
 }
 
+static int da9052_regulator_set_voltage_sel(struct regulator_dev *rdev,
+					    unsigned int selector)
+{
+	struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+	struct da9052_regulator_info *info = regulator->info;
+	int id = rdev_get_id(rdev);
+	int ret;
+
+	ret = da9052_reg_update(regulator->da9052, rdev->desc->vsel_reg,
+				rdev->desc->vsel_mask, selector);
+	if (ret < 0)
+		return ret;
+
+	/* Some LDOs and DCDCs are DVC controlled which requires enabling of
+	 * the activate bit to implment the changes on the output.
+	 */
+	switch (id) {
+	case DA9052_ID_BUCK1:
+	case DA9052_ID_BUCK2:
+	case DA9052_ID_BUCK3:
+	case DA9052_ID_LDO2:
+	case DA9052_ID_LDO3:
+		ret = da9052_reg_update(regulator->da9052, DA9052_SUPPLY_REG,
+					info->activate_bit, info->activate_bit);
+		break;
+	}
+
+	return ret;
+}
+
 static struct regulator_ops da9052_dcdc_ops = {
 	.get_current_limit = da9052_dcdc_get_current_limit,
 	.set_current_limit = da9052_dcdc_set_current_limit,
@@ -216,7 +247,7 @@ static struct regulator_ops da9052_dcdc_ops = {
 	.list_voltage = da9052_list_voltage,
 	.map_voltage = da9052_map_voltage,
 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
-	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.set_voltage_sel = da9052_regulator_set_voltage_sel,
 	.is_enabled = regulator_is_enabled_regmap,
 	.enable = regulator_enable_regmap,
 	.disable = regulator_disable_regmap,
@@ -226,7 +257,7 @@ static struct regulator_ops da9052_ldo_ops = {
 	.list_voltage = da9052_list_voltage,
 	.map_voltage = da9052_map_voltage,
 	.get_voltage_sel = regulator_get_voltage_sel_regmap,
-	.set_voltage_sel = regulator_set_voltage_sel_regmap,
+	.set_voltage_sel = da9052_regulator_set_voltage_sel,
 	.is_enabled = regulator_is_enabled_regmap,
 	.enable = regulator_enable_regmap,
 	.disable = regulator_disable_regmap,
@@ -243,14 +274,13 @@ static struct regulator_ops da9052_ldo_ops = {
 		.owner = THIS_MODULE,\
 		.vsel_reg = DA9052_BUCKCORE_REG + DA9052_ID_##_id, \
 		.vsel_mask = (1 << (sbits)) - 1,\
-		.apply_reg = DA9052_SUPPLY_REG, \
-		.apply_bit = (abits), \
 		.enable_reg = DA9052_BUCKCORE_REG + DA9052_ID_##_id, \
 		.enable_mask = 1 << (ebits),\
 	},\
 	.min_uV = (min) * 1000,\
 	.max_uV = (max) * 1000,\
 	.step_uV = (step) * 1000,\
+	.activate_bit = (abits),\
 }
 
 #define DA9052_DCDC(_id, step, min, max, sbits, ebits, abits) \
@@ -264,14 +294,13 @@ static struct regulator_ops da9052_ldo_ops = {
 		.owner = THIS_MODULE,\
 		.vsel_reg = DA9052_BUCKCORE_REG + DA9052_ID_##_id, \
 		.vsel_mask = (1 << (sbits)) - 1,\
-		.apply_reg = DA9052_SUPPLY_REG, \
-		.apply_bit = (abits), \
 		.enable_reg = DA9052_BUCKCORE_REG + DA9052_ID_##_id, \
 		.enable_mask = 1 << (ebits),\
 	},\
 	.min_uV = (min) * 1000,\
 	.max_uV = (max) * 1000,\
 	.step_uV = (step) * 1000,\
+	.activate_bit = (abits),\
 }
 
 static struct da9052_regulator_info da9052_regulator_info[] = {
-- 
cgit 


From b7baa9a0e324e32433d894374c3bddea29961aa0 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Wed, 23 Oct 2013 12:14:54 -0700
Subject: ALSA: hda - Remove OOM message after input_allocate_device

Emitting an OOM message isn't necessary after input_allocate_device
as there's a generic OOM and a dump_stack already done.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_beep.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/sound/pci/hda/hda_beep.c b/sound/pci/hda/hda_beep.c
index 63c99090a4ec..20d065a17226 100644
--- a/sound/pci/hda/hda_beep.c
+++ b/sound/pci/hda/hda_beep.c
@@ -151,10 +151,8 @@ static int snd_hda_do_attach(struct hda_beep *beep)
 	int err;
 
 	input_dev = input_allocate_device();
-	if (!input_dev) {
-		printk(KERN_INFO "hda_beep: unable to allocate input device\n");
+	if (!input_dev)
 		return -ENOMEM;
-	}
 
 	/* setup digital beep device */
 	input_dev->name = "HDA Digital PCBeep";
-- 
cgit 


From 1d04c9de5c76df113e4af7120feb53c628b5efcc Mon Sep 17 00:00:00 2001
From: Kailang Yang <kailang@realtek.com>
Date: Thu, 24 Oct 2013 11:35:18 +0200
Subject: ALSA: hda - Add support of ALC255 codecs

It's just another variant of ALC269 & co.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 52c26d3a61d4..1c4f8c545fe7 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -2540,6 +2540,7 @@ enum {
 	ALC269_TYPE_ALC283,
 	ALC269_TYPE_ALC284,
 	ALC269_TYPE_ALC286,
+	ALC269_TYPE_ALC255,
 };
 
 /*
@@ -2565,6 +2566,7 @@ static int alc269_parse_auto_config(struct hda_codec *codec)
 	case ALC269_TYPE_ALC282:
 	case ALC269_TYPE_ALC283:
 	case ALC269_TYPE_ALC286:
+	case ALC269_TYPE_ALC255:
 		ssids = alc269_ssids;
 		break;
 	default:
@@ -4102,6 +4104,9 @@ static int patch_alc269(struct hda_codec *codec)
 	case 0x10ec0286:
 		spec->codec_variant = ALC269_TYPE_ALC286;
 		break;
+	case 0x10ec0255:
+		spec->codec_variant = ALC269_TYPE_ALC255;
+		break;
 	}
 
 	if (snd_hda_codec_read(codec, 0x51, 0, AC_VERB_PARAMETERS, 0) == 0x10ec5505) {
@@ -4814,6 +4819,7 @@ static int patch_alc680(struct hda_codec *codec)
 static const struct hda_codec_preset snd_hda_preset_realtek[] = {
 	{ .id = 0x10ec0221, .name = "ALC221", .patch = patch_alc269 },
 	{ .id = 0x10ec0233, .name = "ALC233", .patch = patch_alc269 },
+	{ .id = 0x10ec0255, .name = "ALC255", .patch = patch_alc269 },
 	{ .id = 0x10ec0260, .name = "ALC260", .patch = patch_alc260 },
 	{ .id = 0x10ec0262, .name = "ALC262", .patch = patch_alc262 },
 	{ .id = 0x10ec0267, .name = "ALC267", .patch = patch_alc268 },
-- 
cgit 


From 161ebf295e2ad7876195143342362d2cf6ffaca2 Mon Sep 17 00:00:00 2001
From: Kailang Yang <kailang@realtek.com>
Date: Thu, 24 Oct 2013 11:36:33 +0200
Subject: ALSA: hda - Add support of ALC285 / ALC293 codecs

Yet another variants of ALC269.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 1c4f8c545fe7..3016467c04cc 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -2539,6 +2539,7 @@ enum {
 	ALC269_TYPE_ALC282,
 	ALC269_TYPE_ALC283,
 	ALC269_TYPE_ALC284,
+	ALC269_TYPE_ALC285,
 	ALC269_TYPE_ALC286,
 	ALC269_TYPE_ALC255,
 };
@@ -2559,6 +2560,7 @@ static int alc269_parse_auto_config(struct hda_codec *codec)
 	case ALC269_TYPE_ALC269VC:
 	case ALC269_TYPE_ALC280:
 	case ALC269_TYPE_ALC284:
+	case ALC269_TYPE_ALC285:
 		ssids = alc269va_ssids;
 		break;
 	case ALC269_TYPE_ALC269VB:
@@ -4101,6 +4103,10 @@ static int patch_alc269(struct hda_codec *codec)
 	case 0x10ec0292:
 		spec->codec_variant = ALC269_TYPE_ALC284;
 		break;
+	case 0x10ec0285:
+	case 0x10ec0293:
+		spec->codec_variant = ALC269_TYPE_ALC285;
+		break;
 	case 0x10ec0286:
 		spec->codec_variant = ALC269_TYPE_ALC286;
 		break;
@@ -4833,9 +4839,11 @@ static const struct hda_codec_preset snd_hda_preset_realtek[] = {
 	{ .id = 0x10ec0282, .name = "ALC282", .patch = patch_alc269 },
 	{ .id = 0x10ec0283, .name = "ALC283", .patch = patch_alc269 },
 	{ .id = 0x10ec0284, .name = "ALC284", .patch = patch_alc269 },
+	{ .id = 0x10ec0285, .name = "ALC285", .patch = patch_alc269 },
 	{ .id = 0x10ec0286, .name = "ALC286", .patch = patch_alc269 },
 	{ .id = 0x10ec0290, .name = "ALC290", .patch = patch_alc269 },
 	{ .id = 0x10ec0292, .name = "ALC292", .patch = patch_alc269 },
+	{ .id = 0x10ec0293, .name = "ALC293", .patch = patch_alc269 },
 	{ .id = 0x10ec0861, .rev = 0x100340, .name = "ALC660",
 	  .patch = patch_alc861 },
 	{ .id = 0x10ec0660, .name = "ALC660-VD", .patch = patch_alc861vd },
-- 
cgit 


From 95f74c41b2e53f541f2f66c8ba3dac1601ebd409 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 24 Oct 2013 01:24:15 +0200
Subject: ALSA: hda - Fix mute LED on HP laptops in runtime suspend

When HP laptops with mute and mic-record LEDs go to runtime suspend,
these LEDs are turned on forcibly no matter whether GPIO pis are on or
off.  This strange behavior seems triggered by resetting the HD-audio
bus link at azx_rutime_suspend().  So, just add a new hda_bus flag to
avoid the link reset at runtime suspend and set it for these HP
machines.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_codec.h      | 1 +
 sound/pci/hda/hda_intel.c      | 3 ++-
 sound/pci/hda/patch_sigmatel.c | 4 +++-
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index 7aa9870040c1..77db69480c19 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -698,6 +698,7 @@ struct hda_bus {
 	unsigned int in_reset:1;	/* during reset operation */
 	unsigned int power_keep_link_on:1; /* don't power off HDA link */
 	unsigned int no_response_fallback:1; /* don't fallback at RIRB error */
+	unsigned int avoid_link_reset:1; /* don't reset link at runtime PM */
 
 	int primary_dig_out_type;	/* primary digital out PCM type */
 };
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 6e61a019aa5e..a0a06f79daa3 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2986,7 +2986,8 @@ static int azx_runtime_suspend(struct device *dev)
 		  STATESTS_INT_MASK);
 
 	azx_stop_chip(chip);
-	azx_enter_link_reset(chip);
+	if (!chip->bus->avoid_link_reset)
+		azx_enter_link_reset(chip);
 	azx_clear_irq_pending(chip);
 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
 		hda_display_power(false);
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index fba0cef1c47f..69a549a82345 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -2091,8 +2091,10 @@ static void stac92hd83xxx_fixup_hp_mic_led(struct hda_codec *codec,
 {
 	struct sigmatel_spec *spec = codec->spec;
 
-	if (action == HDA_FIXUP_ACT_PRE_PROBE)
+	if (action == HDA_FIXUP_ACT_PRE_PROBE) {
 		spec->mic_mute_led_gpio = 0x08; /* GPIO3 */
+		codec->bus->avoid_link_reset = 1;
+	}
 }
 
 static void stac92hd83xxx_fixup_headset_jack(struct hda_codec *codec,
-- 
cgit 


From 90130d2e8f75c7181cef514e8a1491925f386a16 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Sat, 19 Oct 2013 21:38:26 +0100
Subject: ASoC: dmaengine: Use filter_data rather than dma_data for compat
 requests

When using the legacy filter function channel requests we currently pass
the audio specific struct snd_dmaengine_dai_dma_data which isn't likely to
be helpful for actual filtering. Since there's already a field in the
structure called filter_data clearly intended for use here convert the
driver to use that.

All existing users of plain filter functions have been converted to use
an explicit compat function to override this behaviour except i.MX which
is working around this issue in its filter function and is updated to
just use filter_data directly here.

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
---
 sound/soc/fsl/imx-pcm-dma.c           | 4 +---
 sound/soc/soc-generic-dmaengine-pcm.c | 5 ++++-
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/sound/soc/fsl/imx-pcm-dma.c b/sound/soc/fsl/imx-pcm-dma.c
index 4dc1296688e9..aee23077080a 100644
--- a/sound/soc/fsl/imx-pcm-dma.c
+++ b/sound/soc/fsl/imx-pcm-dma.c
@@ -25,12 +25,10 @@
 
 static bool filter(struct dma_chan *chan, void *param)
 {
-	struct snd_dmaengine_dai_dma_data *dma_data = param;
-
 	if (!imx_dma_is_general_purpose(chan))
 		return false;
 
-	chan->private = dma_data->filter_data;
+	chan->private = param;
 
 	return true;
 }
diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c
index 793cd6c246f6..0c469cbbe881 100644
--- a/sound/soc/soc-generic-dmaengine-pcm.c
+++ b/sound/soc/soc-generic-dmaengine-pcm.c
@@ -168,6 +168,9 @@ static struct dma_chan *dmaengine_pcm_compat_request_channel(
 	struct snd_pcm_substream *substream)
 {
 	struct dmaengine_pcm *pcm = soc_platform_to_pcm(rtd->platform);
+	struct snd_dmaengine_dai_dma_data *dma_data;
+
+	dma_data = snd_soc_dai_get_dma_data(rtd->cpu_dai, substream);
 
 	if ((pcm->flags & SND_DMAENGINE_PCM_FLAG_HALF_DUPLEX) && pcm->chan[0])
 		return pcm->chan[0];
@@ -176,7 +179,7 @@ static struct dma_chan *dmaengine_pcm_compat_request_channel(
 		return pcm->config->compat_request_channel(rtd, substream);
 
 	return snd_dmaengine_pcm_request_channel(pcm->config->compat_filter_fn,
-		snd_soc_dai_get_dma_data(rtd->cpu_dai, substream));
+						 dma_data->filter_data);
 }
 
 static int dmaengine_pcm_new(struct snd_soc_pcm_runtime *rtd)
-- 
cgit 


From 34c5c735a89bc0ad5fab1c29b9f425b77fbb7ae7 Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Wed, 26 Sep 2012 18:18:04 +0530
Subject: mfd: tps65910: Remove warning during dt node parsing

Driver throw the warning message if dt node does not
have the info for VMBCH-Threshold and VMBCH2-Threshold.
These properties are optional property and hence it
is not mandatory to have these on DT node and in this case
it should not throw the warning message.
It creates noise from driver as follows:
[    0.384605] tps65910 4-002d: VMBCH-Threshold not specified
[    0.384616] tps65910 4-002d: VMBCH2-Threshold not specified

Removing the warning message from driver.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/tps65910.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/mfd/tps65910.c b/drivers/mfd/tps65910.c
index d79277204835..78ffe6e53eb8 100644
--- a/drivers/mfd/tps65910.c
+++ b/drivers/mfd/tps65910.c
@@ -410,14 +410,10 @@ static struct tps65910_board *tps65910_parse_dt(struct i2c_client *client,
 	ret = of_property_read_u32(np, "ti,vmbch-threshold", &prop);
 	if (!ret)
 		board_info->vmbch_threshold = prop;
-	else if (*chip_id == TPS65911)
-		dev_warn(&client->dev, "VMBCH-Threshold not specified");
 
 	ret = of_property_read_u32(np, "ti,vmbch2-threshold", &prop);
 	if (!ret)
 		board_info->vmbch2_threshold = prop;
-	else if (*chip_id == TPS65911)
-		dev_warn(&client->dev, "VMBCH2-Threshold not specified");
 
 	prop = of_property_read_bool(np, "ti,en-ck32k-xtal");
 	board_info->en_ck32k_xtal = prop;
-- 
cgit 


From 501d609abe43894430eecee7f5e498607718b26b Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Sun, 13 Oct 2013 18:06:12 +0200
Subject: mfd: twl6040: Remove obsolete cleanup for i2c clientdata

A few new i2c-drivers came into the kernel which clear the clientdata-pointer
on exit or error. This is obsolete meanwhile, the core will do it.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/twl6040.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/mfd/twl6040.c b/drivers/mfd/twl6040.c
index daf66942071c..9d948af420db 100644
--- a/drivers/mfd/twl6040.c
+++ b/drivers/mfd/twl6040.c
@@ -565,13 +565,13 @@ static int twl6040_probe(struct i2c_client *client,
 				      twl6040->supplies);
 	if (ret != 0) {
 		dev_err(&client->dev, "Failed to get supplies: %d\n", ret);
-		goto regulator_get_err;
+		return ret;
 	}
 
 	ret = regulator_bulk_enable(TWL6040_NUM_SUPPLIES, twl6040->supplies);
 	if (ret != 0) {
 		dev_err(&client->dev, "Failed to enable supplies: %d\n", ret);
-		goto regulator_get_err;
+		return ret;
 	}
 
 	twl6040->dev = &client->dev;
@@ -671,9 +671,6 @@ readyirq_err:
 	regmap_del_irq_chip(twl6040->irq, twl6040->irq_data);
 gpio_err:
 	regulator_bulk_disable(TWL6040_NUM_SUPPLIES, twl6040->supplies);
-regulator_get_err:
-	i2c_set_clientdata(client, NULL);
-
 	return ret;
 }
 
@@ -689,7 +686,6 @@ static int twl6040_remove(struct i2c_client *client)
 	regmap_del_irq_chip(twl6040->irq, twl6040->irq_data);
 
 	mfd_remove_devices(&client->dev);
-	i2c_set_clientdata(client, NULL);
 
 	regulator_bulk_disable(TWL6040_NUM_SUPPLIES, twl6040->supplies);
 
-- 
cgit 


From 033054e8603036e43ddfad3155b3e5b78ed49e04 Mon Sep 17 00:00:00 2001
From: Chanwoo Choi <cw00.choi@samsung.com>
Date: Thu, 10 Oct 2013 10:41:35 +0900
Subject: regulator: s5m8767: Modify parse_dt function to parse data related to
 ramp

This patch parse 'buck[2-4]_ramp_enable and buck_ramp_delay' platform data
from dts file.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/s5m8767.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c
index c24448bc43cf..cb6cdb3c0bdc 100644
--- a/drivers/regulator/s5m8767.c
+++ b/drivers/regulator/s5m8767.c
@@ -640,6 +640,22 @@ static int s5m8767_pmic_dt_parse_pdata(struct platform_device *pdev,
 		return -EINVAL;
 	}
 
+	if (of_get_property(pmic_np, "s5m8767,pmic-buck2-ramp-enable", NULL))
+		pdata->buck2_ramp_enable = true;
+
+	if (of_get_property(pmic_np, "s5m8767,pmic-buck3-ramp-enable", NULL))
+		pdata->buck3_ramp_enable = true;
+
+	if (of_get_property(pmic_np, "s5m8767,pmic-buck4-ramp-enable", NULL))
+		pdata->buck4_ramp_enable = true;
+
+	if (pdata->buck2_ramp_enable || pdata->buck3_ramp_enable
+			|| pdata->buck4_ramp_enable) {
+		if (of_property_read_u32(pmic_np, "s5m8767,pmic-buck-ramp-delay",
+				&pdata->buck_ramp_delay))
+			pdata->buck_ramp_delay = 0;
+	}
+
 	return 0;
 }
 #else
-- 
cgit 


From 04f9f068a619cc45a8e656e7121df2c772fa14ba Mon Sep 17 00:00:00 2001
From: Chanwoo Choi <cw00.choi@samsung.com>
Date: Thu, 10 Oct 2013 10:41:36 +0900
Subject: regulator: s5m8767: Modify parsing method of the voltage table of
 buck2/3/4

The s5m8767 regulator driver parse always the voltage table of buck2/3/4.
If gpio_dvs feature isn't used and dts haven't included the voltage table
of buck2/3/4, s5m8767 regulator driver return error and file probe state.

This patch check only voltage table of buck on s5m8767_pmic_dt_parse_pdata()
if buck[2-4]_gpiodvs is true.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: YoungJun Cho <yj44.cho@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/s5m8767.c | 54 +++++++++++++++++++++++----------------------
 1 file changed, 28 insertions(+), 26 deletions(-)

diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c
index cb6cdb3c0bdc..29999c042d69 100644
--- a/drivers/regulator/s5m8767.c
+++ b/drivers/regulator/s5m8767.c
@@ -522,7 +522,7 @@ static int s5m8767_pmic_dt_parse_pdata(struct platform_device *pdev,
 	struct device_node *pmic_np, *regulators_np, *reg_np;
 	struct sec_regulator_data *rdata;
 	struct sec_opmode_data *rmode;
-	unsigned int i, dvs_voltage_nr = 1, ret;
+	unsigned int i, dvs_voltage_nr = 8, ret;
 
 	pmic_np = iodev->dev->of_node;
 	if (!pmic_np) {
@@ -586,15 +586,39 @@ static int s5m8767_pmic_dt_parse_pdata(struct platform_device *pdev,
 		rmode++;
 	}
 
-	if (of_get_property(pmic_np, "s5m8767,pmic-buck2-uses-gpio-dvs", NULL))
+	if (of_get_property(pmic_np, "s5m8767,pmic-buck2-uses-gpio-dvs", NULL)) {
 		pdata->buck2_gpiodvs = true;
 
-	if (of_get_property(pmic_np, "s5m8767,pmic-buck3-uses-gpio-dvs", NULL))
+		if (of_property_read_u32_array(pmic_np,
+				"s5m8767,pmic-buck2-dvs-voltage",
+				pdata->buck2_voltage, dvs_voltage_nr)) {
+			dev_err(iodev->dev, "buck2 voltages not specified\n");
+			return -EINVAL;
+		}
+	}
+
+	if (of_get_property(pmic_np, "s5m8767,pmic-buck3-uses-gpio-dvs", NULL)) {
 		pdata->buck3_gpiodvs = true;
 
-	if (of_get_property(pmic_np, "s5m8767,pmic-buck4-uses-gpio-dvs", NULL))
+		if (of_property_read_u32_array(pmic_np,
+				"s5m8767,pmic-buck3-dvs-voltage",
+				pdata->buck3_voltage, dvs_voltage_nr)) {
+			dev_err(iodev->dev, "buck3 voltages not specified\n");
+			return -EINVAL;
+		}
+	}
+
+	if (of_get_property(pmic_np, "s5m8767,pmic-buck4-uses-gpio-dvs", NULL)) {
 		pdata->buck4_gpiodvs = true;
 
+		if (of_property_read_u32_array(pmic_np,
+				"s5m8767,pmic-buck4-dvs-voltage",
+				pdata->buck4_voltage, dvs_voltage_nr)) {
+			dev_err(iodev->dev, "buck4 voltages not specified\n");
+			return -EINVAL;
+		}
+	}
+
 	if (pdata->buck2_gpiodvs || pdata->buck3_gpiodvs ||
 						pdata->buck4_gpiodvs) {
 		ret = s5m8767_pmic_dt_parse_dvs_gpio(iodev, pdata, pmic_np);
@@ -612,34 +636,12 @@ static int s5m8767_pmic_dt_parse_pdata(struct platform_device *pdev,
 				"invalid value for default dvs index, use 0\n");
 			}
 		}
-		dvs_voltage_nr = 8;
 	}
 
 	ret = s5m8767_pmic_dt_parse_ds_gpio(iodev, pdata, pmic_np);
 	if (ret)
 		return -EINVAL;
 
-	if (of_property_read_u32_array(pmic_np,
-				"s5m8767,pmic-buck2-dvs-voltage",
-				pdata->buck2_voltage, dvs_voltage_nr)) {
-		dev_err(iodev->dev, "buck2 voltages not specified\n");
-		return -EINVAL;
-	}
-
-	if (of_property_read_u32_array(pmic_np,
-				"s5m8767,pmic-buck3-dvs-voltage",
-				pdata->buck3_voltage, dvs_voltage_nr)) {
-		dev_err(iodev->dev, "buck3 voltages not specified\n");
-		return -EINVAL;
-	}
-
-	if (of_property_read_u32_array(pmic_np,
-				"s5m8767,pmic-buck4-dvs-voltage",
-				pdata->buck4_voltage, dvs_voltage_nr)) {
-		dev_err(iodev->dev, "buck4 voltages not specified\n");
-		return -EINVAL;
-	}
-
 	if (of_get_property(pmic_np, "s5m8767,pmic-buck2-ramp-enable", NULL))
 		pdata->buck2_ramp_enable = true;
 
-- 
cgit 


From 0ea1ec713f04bdfac343c9702b21cd3a7c711826 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Wed, 23 Oct 2013 16:14:59 +0100
Subject: ARM: dma-mapping: don't allow DMA mappings to be marked executable

DMA mapping permissions were being derived from pgprot_kernel directly
without using PAGE_KERNEL.  This causes them to be marked with executable
permission, which is not what we want.  Fix this.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mm/dma-mapping.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index f5e1a8471714..57438506d524 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -687,7 +687,7 @@ static void *__dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 void *arm_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 		    gfp_t gfp, struct dma_attrs *attrs)
 {
-	pgprot_t prot = __get_dma_pgprot(attrs, pgprot_kernel);
+	pgprot_t prot = __get_dma_pgprot(attrs, PAGE_KERNEL);
 	void *memory;
 
 	if (dma_alloc_from_coherent(dev, size, handle, &memory))
@@ -700,7 +700,7 @@ void *arm_dma_alloc(struct device *dev, size_t size, dma_addr_t *handle,
 static void *arm_coherent_dma_alloc(struct device *dev, size_t size,
 	dma_addr_t *handle, gfp_t gfp, struct dma_attrs *attrs)
 {
-	pgprot_t prot = __get_dma_pgprot(attrs, pgprot_kernel);
+	pgprot_t prot = __get_dma_pgprot(attrs, PAGE_KERNEL);
 	void *memory;
 
 	if (dma_alloc_from_coherent(dev, size, handle, &memory))
-- 
cgit 


From 1abe729f783fece81d93e9a0253fd8079f19d7f6 Mon Sep 17 00:00:00 2001
From: Nicolin Chen <b42378@freescale.com>
Date: Thu, 24 Oct 2013 18:15:29 +0800
Subject: ASoC: fsl: Add missing pm to current machine drivers

Add missing pm to current machine drivers so that all of them would
correctly do suspend/resume.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/imx-mc13783.c  | 1 +
 sound/soc/fsl/imx-sgtl5000.c | 1 +
 sound/soc/fsl/imx-wm8962.c   | 1 +
 3 files changed, 3 insertions(+)

diff --git a/sound/soc/fsl/imx-mc13783.c b/sound/soc/fsl/imx-mc13783.c
index a2fd7321b5a9..79cee782dbbf 100644
--- a/sound/soc/fsl/imx-mc13783.c
+++ b/sound/soc/fsl/imx-mc13783.c
@@ -160,6 +160,7 @@ static struct platform_driver imx_mc13783_audio_driver = {
 	.driver = {
 		.name = "imx_mc13783",
 		.owner = THIS_MODULE,
+		.pm = &snd_soc_pm_ops,
 	},
 	.probe = imx_mc13783_probe,
 	.remove = imx_mc13783_remove
diff --git a/sound/soc/fsl/imx-sgtl5000.c b/sound/soc/fsl/imx-sgtl5000.c
index ca1be1d9dcf0..73da709069df 100644
--- a/sound/soc/fsl/imx-sgtl5000.c
+++ b/sound/soc/fsl/imx-sgtl5000.c
@@ -202,6 +202,7 @@ static struct platform_driver imx_sgtl5000_driver = {
 	.driver = {
 		.name = "imx-sgtl5000",
 		.owner = THIS_MODULE,
+		.pm = &snd_soc_pm_ops,
 		.of_match_table = imx_sgtl5000_dt_ids,
 	},
 	.probe = imx_sgtl5000_probe,
diff --git a/sound/soc/fsl/imx-wm8962.c b/sound/soc/fsl/imx-wm8962.c
index 722afe69169e..8e5b2c6a16d9 100644
--- a/sound/soc/fsl/imx-wm8962.c
+++ b/sound/soc/fsl/imx-wm8962.c
@@ -311,6 +311,7 @@ static struct platform_driver imx_wm8962_driver = {
 	.driver = {
 		.name = "imx-wm8962",
 		.owner = THIS_MODULE,
+		.pm = &snd_soc_pm_ops,
 		.of_match_table = imx_wm8962_dt_ids,
 	},
 	.probe = imx_wm8962_probe,
-- 
cgit 


From 0c02c8007ea5554d028f99fd3e29fc201fdeeab3 Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Thu, 19 Sep 2013 11:22:36 -0500
Subject: of/irq: Rename of_irq_map_* functions to of_irq_parse_*

The OF irq handling code has been overloading the term 'map' to refer to
both parsing the data in the device tree and mapping it to the internal
linux irq system. This is probably because the device tree does have the
concept of an 'interrupt-map' function for translating interrupt
references from one node to another, but 'map' is still confusing when
the primary purpose of some of the functions are to parse the DT data.

This patch renames all the of_irq_map_* functions to of_irq_parse_*
which makes it clear that there is a difference between the parsing
phase and the mapping phase. Kernel code can make use of just the
parsing or just the mapping support as needed by the subsystem.

The patch was generated mechanically with a handful of sed commands.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Michal Simek <monstr@monstr.eu>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/arm/mach-integrator/pci_v3.c              |  4 ++--
 arch/microblaze/pci/pci-common.c               |  2 +-
 arch/mips/pci/fixup-lantiq.c                   |  2 +-
 arch/mips/pci/pci-rt3883.c                     |  2 +-
 arch/powerpc/kernel/pci-common.c               |  2 +-
 arch/powerpc/platforms/cell/celleb_scc_pciex.c |  2 +-
 arch/powerpc/platforms/cell/celleb_scc_sio.c   |  2 +-
 arch/powerpc/platforms/cell/spider-pic.c       |  2 +-
 arch/powerpc/platforms/cell/spu_manage.c       |  2 +-
 arch/powerpc/platforms/fsl_uli1575.c           |  2 +-
 arch/powerpc/platforms/powermac/pic.c          |  2 +-
 arch/powerpc/platforms/pseries/event_sources.c |  2 +-
 arch/powerpc/sysdev/mpic_msi.c                 |  2 +-
 arch/x86/kernel/devicetree.c                   |  2 +-
 drivers/of/address.c                           |  4 ++--
 drivers/of/irq.c                               | 28 +++++++++++++-------------
 drivers/of/of_pci_irq.c                        | 10 ++++-----
 drivers/pci/host/pci-mvebu.c                   |  2 +-
 include/linux/of_irq.h                         |  8 ++++----
 include/linux/of_pci.h                         |  2 +-
 20 files changed, 42 insertions(+), 42 deletions(-)

diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c
index bef100527c42..0f496cc51f36 100644
--- a/arch/arm/mach-integrator/pci_v3.c
+++ b/arch/arm/mach-integrator/pci_v3.c
@@ -840,9 +840,9 @@ static int __init pci_v3_map_irq_dt(const struct pci_dev *dev, u8 slot, u8 pin)
 	struct of_irq oirq;
 	int ret;
 
-	ret = of_irq_map_pci(dev, &oirq);
+	ret = of_irq_parse_pci(dev, &oirq);
 	if (ret) {
-		dev_err(&dev->dev, "of_irq_map_pci() %d\n", ret);
+		dev_err(&dev->dev, "of_irq_parse_pci() %d\n", ret);
 		/* Proper return code 0 == NO_IRQ */
 		return 0;
 	}
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index 1b93bf0892a0..4d5b1a9cd790 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -217,7 +217,7 @@ int pci_read_irq_line(struct pci_dev *pci_dev)
 	memset(&oirq, 0xff, sizeof(oirq));
 #endif
 	/* Try to get a mapping from the device-tree */
-	if (of_irq_map_pci(pci_dev, &oirq)) {
+	if (of_irq_parse_pci(pci_dev, &oirq)) {
 		u8 line, pin;
 
 		/* If that fails, lets fallback to what is in the config
diff --git a/arch/mips/pci/fixup-lantiq.c b/arch/mips/pci/fixup-lantiq.c
index 6c829df28dc7..2e8dbfedae53 100644
--- a/arch/mips/pci/fixup-lantiq.c
+++ b/arch/mips/pci/fixup-lantiq.c
@@ -28,7 +28,7 @@ int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 	struct of_irq dev_irq;
 	int irq;
 
-	if (of_irq_map_pci(dev, &dev_irq)) {
+	if (of_irq_parse_pci(dev, &dev_irq)) {
 		dev_err(&dev->dev, "trying to map irq for unknown slot:%d pin:%d\n",
 			slot, pin);
 		return 0;
diff --git a/arch/mips/pci/pci-rt3883.c b/arch/mips/pci/pci-rt3883.c
index 95c9d41382e7..cae92a05ee70 100644
--- a/arch/mips/pci/pci-rt3883.c
+++ b/arch/mips/pci/pci-rt3883.c
@@ -587,7 +587,7 @@ int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 	int err;
 	int irq;
 
-	err = of_irq_map_pci(dev, &dev_irq);
+	err = of_irq_parse_pci(dev, &dev_irq);
 	if (err) {
 		pr_err("pci %s: unable to get irq map, err=%d\n",
 		       pci_name((struct pci_dev *) dev), err);
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 905a24bb7acc..2f4185425ed5 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -237,7 +237,7 @@ static int pci_read_irq_line(struct pci_dev *pci_dev)
 	memset(&oirq, 0xff, sizeof(oirq));
 #endif
 	/* Try to get a mapping from the device-tree */
-	if (of_irq_map_pci(pci_dev, &oirq)) {
+	if (of_irq_parse_pci(pci_dev, &oirq)) {
 		u8 line, pin;
 
 		/* If that fails, lets fallback to what is in the config
diff --git a/arch/powerpc/platforms/cell/celleb_scc_pciex.c b/arch/powerpc/platforms/cell/celleb_scc_pciex.c
index 14be2bd358b8..40bc371096b7 100644
--- a/arch/powerpc/platforms/cell/celleb_scc_pciex.c
+++ b/arch/powerpc/platforms/cell/celleb_scc_pciex.c
@@ -507,7 +507,7 @@ static __init int celleb_setup_pciex(struct device_node *node,
 	phb->ops = &scc_pciex_pci_ops;
 
 	/* internal interrupt handler */
-	if (of_irq_map_one(node, 1, &oirq)) {
+	if (of_irq_parse_one(node, 1, &oirq)) {
 		pr_err("PCIEXC:Failed to map irq\n");
 		goto error;
 	}
diff --git a/arch/powerpc/platforms/cell/celleb_scc_sio.c b/arch/powerpc/platforms/cell/celleb_scc_sio.c
index 9c339ec646f5..96388b202f4e 100644
--- a/arch/powerpc/platforms/cell/celleb_scc_sio.c
+++ b/arch/powerpc/platforms/cell/celleb_scc_sio.c
@@ -53,7 +53,7 @@ static int __init txx9_serial_init(void)
 			if (!(txx9_serial_bitmap & (1<<i)))
 				continue;
 
-			if (of_irq_map_one(node, i, &irq))
+			if (of_irq_parse_one(node, i, &irq))
 				continue;
 			if (of_address_to_resource(node,
 				txx9_scc_tab[i].index, &res))
diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c
index 8e299447127e..b491f406560a 100644
--- a/arch/powerpc/platforms/cell/spider-pic.c
+++ b/arch/powerpc/platforms/cell/spider-pic.c
@@ -236,7 +236,7 @@ static unsigned int __init spider_find_cascade_and_node(struct spider_pic *pic)
 	 * tree in case the device-tree is ever fixed
 	 */
 	struct of_irq oirq;
-	if (of_irq_map_one(pic->host->of_node, 0, &oirq) == 0) {
+	if (of_irq_parse_one(pic->host->of_node, 0, &oirq) == 0) {
 		virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
 					     oirq.size);
 		return virq;
diff --git a/arch/powerpc/platforms/cell/spu_manage.c b/arch/powerpc/platforms/cell/spu_manage.c
index 2bb6977c0a5a..e6cdb81a0959 100644
--- a/arch/powerpc/platforms/cell/spu_manage.c
+++ b/arch/powerpc/platforms/cell/spu_manage.c
@@ -182,7 +182,7 @@ static int __init spu_map_interrupts(struct spu *spu, struct device_node *np)
 	int i;
 
 	for (i=0; i < 3; i++) {
-		ret = of_irq_map_one(np, i, &oirq);
+		ret = of_irq_parse_one(np, i, &oirq);
 		if (ret) {
 			pr_debug("spu_new: failed to get irq %d\n", i);
 			goto err;
diff --git a/arch/powerpc/platforms/fsl_uli1575.c b/arch/powerpc/platforms/fsl_uli1575.c
index 92ac9b52b32d..ac539c1cd808 100644
--- a/arch/powerpc/platforms/fsl_uli1575.c
+++ b/arch/powerpc/platforms/fsl_uli1575.c
@@ -333,7 +333,7 @@ static void hpcd_final_uli5288(struct pci_dev *dev)
 
 	laddr[0] = (hose->first_busno << 16) | (PCI_DEVFN(31, 0) << 8);
 	laddr[1] = laddr[2] = 0;
-	of_irq_map_raw(hosenode, &pin, 1, laddr, &oirq);
+	of_irq_parse_raw(hosenode, &pin, 1, laddr, &oirq);
 	virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
 				     oirq.size);
 	dev->irq = virq;
diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
index 31036b56670e..720663e29f47 100644
--- a/arch/powerpc/platforms/powermac/pic.c
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -393,7 +393,7 @@ static void __init pmac_pic_probe_oldstyle(void)
 #endif
 }
 
-int of_irq_map_oldworld(struct device_node *device, int index,
+int of_irq_parse_oldworld(struct device_node *device, int index,
 			struct of_irq *out_irq)
 {
 	const u32 *ints = NULL;
diff --git a/arch/powerpc/platforms/pseries/event_sources.c b/arch/powerpc/platforms/pseries/event_sources.c
index 2605c310166a..850c18c457ad 100644
--- a/arch/powerpc/platforms/pseries/event_sources.c
+++ b/arch/powerpc/platforms/pseries/event_sources.c
@@ -55,7 +55,7 @@ void request_event_sources_irqs(struct device_node *np,
 	/* Else use normal interrupt tree parsing */
 	else {
 		/* First try to do a proper OF tree parsing */
-		for (index = 0; of_irq_map_one(np, index, &oirq) == 0;
+		for (index = 0; of_irq_parse_one(np, index, &oirq) == 0;
 		     index++) {
 			if (count > 15)
 				break;
diff --git a/arch/powerpc/sysdev/mpic_msi.c b/arch/powerpc/sysdev/mpic_msi.c
index bbf342c88314..463e3a7c193c 100644
--- a/arch/powerpc/sysdev/mpic_msi.c
+++ b/arch/powerpc/sysdev/mpic_msi.c
@@ -63,7 +63,7 @@ static int mpic_msi_reserve_u3_hwirqs(struct mpic *mpic)
 		pr_debug("mpic: mapping hwirqs for %s\n", np->full_name);
 
 		index = 0;
-		while (of_irq_map_one(np, index++, &oirq) == 0) {
+		while (of_irq_parse_one(np, index++, &oirq) == 0) {
 			ops->xlate(mpic->irqhost, NULL, oirq.specifier,
 						oirq.size, &hwirq, &flags);
 			msi_bitmap_reserve_hwirq(&mpic->msi_bitmap, hwirq);
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 376dc7873447..3ac6398e5361 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -116,7 +116,7 @@ static int x86_of_pci_irq_enable(struct pci_dev *dev)
 	if (!pin)
 		return 0;
 
-	ret = of_irq_map_pci(dev, &oirq);
+	ret = of_irq_parse_pci(dev, &oirq);
 	if (ret)
 		return ret;
 
diff --git a/drivers/of/address.c b/drivers/of/address.c
index 71180b91bfbe..994f293baebf 100644
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -532,12 +532,12 @@ static u64 __of_translate_address(struct device_node *dev,
 		pbus->count_cells(dev, &pna, &pns);
 		if (!OF_CHECK_COUNTS(pna, pns)) {
 			printk(KERN_ERR "prom_parse: Bad cell count for %s\n",
-			       dev->full_name);
+			       of_node_full_name(dev));
 			break;
 		}
 
 		pr_debug("OF: parent bus is %s (na=%d, ns=%d) on %s\n",
-		    pbus->name, pna, pns, parent->full_name);
+		    pbus->name, pna, pns, of_node_full_name(parent));
 
 		/* Apply bus translation */
 		if (of_translate_one(dev, bus, pbus, addr, na, ns, pna, rprop))
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 90068f914911..410aa2415f42 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -31,14 +31,14 @@
  * @dev: Device node of the device whose interrupt is to be mapped
  * @index: Index of the interrupt to map
  *
- * This function is a wrapper that chains of_irq_map_one() and
+ * This function is a wrapper that chains of_irq_parse_one() and
  * irq_create_of_mapping() to make things easier to callers
  */
 unsigned int irq_of_parse_and_map(struct device_node *dev, int index)
 {
 	struct of_irq oirq;
 
-	if (of_irq_map_one(dev, index, &oirq))
+	if (of_irq_parse_one(dev, index, &oirq))
 		return 0;
 
 	return irq_create_of_mapping(oirq.controller, oirq.specifier,
@@ -79,7 +79,7 @@ struct device_node *of_irq_find_parent(struct device_node *child)
 }
 
 /**
- * of_irq_map_raw - Low level interrupt tree parsing
+ * of_irq_parse_raw - Low level interrupt tree parsing
  * @parent:	the device interrupt parent
  * @intspec:	interrupt specifier ("interrupts" property of the device)
  * @ointsize:   size of the passed in interrupt specifier
@@ -93,7 +93,7 @@ struct device_node *of_irq_find_parent(struct device_node *child)
  * properties, for example when resolving PCI interrupts when no device
  * node exist for the parent.
  */
-int of_irq_map_raw(struct device_node *parent, const __be32 *intspec,
+int of_irq_parse_raw(struct device_node *parent, const __be32 *intspec,
 		   u32 ointsize, const __be32 *addr, struct of_irq *out_irq)
 {
 	struct device_node *ipar, *tnode, *old = NULL, *newpar = NULL;
@@ -101,7 +101,7 @@ int of_irq_map_raw(struct device_node *parent, const __be32 *intspec,
 	u32 intsize = 1, addrsize, newintsize = 0, newaddrsize = 0;
 	int imaplen, match, i;
 
-	pr_debug("of_irq_map_raw: par=%s,intspec=[0x%08x 0x%08x...],ointsize=%d\n",
+	pr_debug("of_irq_parse_raw: par=%s,intspec=[0x%08x 0x%08x...],ointsize=%d\n",
 		 of_node_full_name(parent), be32_to_cpup(intspec),
 		 be32_to_cpup(intspec + 1), ointsize);
 
@@ -126,7 +126,7 @@ int of_irq_map_raw(struct device_node *parent, const __be32 *intspec,
 		goto fail;
 	}
 
-	pr_debug("of_irq_map_raw: ipar=%s, size=%d\n", of_node_full_name(ipar), intsize);
+	pr_debug("of_irq_parse_raw: ipar=%s, size=%d\n", of_node_full_name(ipar), intsize);
 
 	if (ointsize != intsize)
 		return -EINVAL;
@@ -269,29 +269,29 @@ int of_irq_map_raw(struct device_node *parent, const __be32 *intspec,
 
 	return -EINVAL;
 }
-EXPORT_SYMBOL_GPL(of_irq_map_raw);
+EXPORT_SYMBOL_GPL(of_irq_parse_raw);
 
 /**
- * of_irq_map_one - Resolve an interrupt for a device
+ * of_irq_parse_one - Resolve an interrupt for a device
  * @device: the device whose interrupt is to be resolved
  * @index: index of the interrupt to resolve
  * @out_irq: structure of_irq filled by this function
  *
  * This function resolves an interrupt, walking the tree, for a given
- * device-tree node. It's the high level pendant to of_irq_map_raw().
+ * device-tree node. It's the high level pendant to of_irq_parse_raw().
  */
-int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq)
+int of_irq_parse_one(struct device_node *device, int index, struct of_irq *out_irq)
 {
 	struct device_node *p;
 	const __be32 *intspec, *tmp, *addr;
 	u32 intsize, intlen;
 	int res = -EINVAL;
 
-	pr_debug("of_irq_map_one: dev=%s, index=%d\n", of_node_full_name(device), index);
+	pr_debug("of_irq_parse_one: dev=%s, index=%d\n", of_node_full_name(device), index);
 
 	/* OldWorld mac stuff is "special", handle out of line */
 	if (of_irq_workarounds & OF_IMAP_OLDWORLD_MAC)
-		return of_irq_map_oldworld(device, index, out_irq);
+		return of_irq_parse_oldworld(device, index, out_irq);
 
 	/* Get the interrupts property */
 	intspec = of_get_property(device, "interrupts", &intlen);
@@ -322,13 +322,13 @@ int of_irq_map_one(struct device_node *device, int index, struct of_irq *out_irq
 		goto out;
 
 	/* Get new specifier and map it */
-	res = of_irq_map_raw(p, intspec + index * intsize, intsize,
+	res = of_irq_parse_raw(p, intspec + index * intsize, intsize,
 			     addr, out_irq);
  out:
 	of_node_put(p);
 	return res;
 }
-EXPORT_SYMBOL_GPL(of_irq_map_one);
+EXPORT_SYMBOL_GPL(of_irq_parse_one);
 
 /**
  * of_irq_to_resource - Decode a node's IRQ and return it as a resource
diff --git a/drivers/of/of_pci_irq.c b/drivers/of/of_pci_irq.c
index 677053813211..dceec1048dab 100644
--- a/drivers/of/of_pci_irq.c
+++ b/drivers/of/of_pci_irq.c
@@ -5,7 +5,7 @@
 #include <asm/prom.h>
 
 /**
- * of_irq_map_pci - Resolve the interrupt for a PCI device
+ * of_irq_parse_pci - Resolve the interrupt for a PCI device
  * @pdev:       the device whose interrupt is to be resolved
  * @out_irq:    structure of_irq filled by this function
  *
@@ -15,7 +15,7 @@
  * PCI tree until an device-node is found, at which point it will finish
  * resolving using the OF tree walking.
  */
-int of_irq_map_pci(const struct pci_dev *pdev, struct of_irq *out_irq)
+int of_irq_parse_pci(const struct pci_dev *pdev, struct of_irq *out_irq)
 {
 	struct device_node *dn, *ppnode;
 	struct pci_dev *ppdev;
@@ -30,7 +30,7 @@ int of_irq_map_pci(const struct pci_dev *pdev, struct of_irq *out_irq)
 	 */
 	dn = pci_device_to_OF_node(pdev);
 	if (dn) {
-		rc = of_irq_map_one(dn, 0, out_irq);
+		rc = of_irq_parse_one(dn, 0, out_irq);
 		if (!rc)
 			return rc;
 	}
@@ -88,6 +88,6 @@ int of_irq_map_pci(const struct pci_dev *pdev, struct of_irq *out_irq)
 	lspec_be = cpu_to_be32(lspec);
 	laddr[0] = cpu_to_be32((pdev->bus->number << 16) | (pdev->devfn << 8));
 	laddr[1]  = laddr[2] = cpu_to_be32(0);
-	return of_irq_map_raw(ppnode, &lspec_be, 1, laddr, out_irq);
+	return of_irq_parse_raw(ppnode, &lspec_be, 1, laddr, out_irq);
 }
-EXPORT_SYMBOL_GPL(of_irq_map_pci);
+EXPORT_SYMBOL_GPL(of_irq_parse_pci);
diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index 729d5a101d62..05f81807d05b 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -650,7 +650,7 @@ static int __init mvebu_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 	struct of_irq oirq;
 	int ret;
 
-	ret = of_irq_map_pci(dev, &oirq);
+	ret = of_irq_parse_pci(dev, &oirq);
 	if (ret)
 		return ret;
 
diff --git a/include/linux/of_irq.h b/include/linux/of_irq.h
index fcd63baee5f2..a00bc71e62a3 100644
--- a/include/linux/of_irq.h
+++ b/include/linux/of_irq.h
@@ -35,12 +35,12 @@ typedef int (*of_irq_init_cb_t)(struct device_node *, struct device_node *);
 #if defined(CONFIG_PPC32) && defined(CONFIG_PPC_PMAC)
 extern unsigned int of_irq_workarounds;
 extern struct device_node *of_irq_dflt_pic;
-extern int of_irq_map_oldworld(struct device_node *device, int index,
+extern int of_irq_parse_oldworld(struct device_node *device, int index,
 			       struct of_irq *out_irq);
 #else /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
 #define of_irq_workarounds (0)
 #define of_irq_dflt_pic (NULL)
-static inline int of_irq_map_oldworld(struct device_node *device, int index,
+static inline int of_irq_parse_oldworld(struct device_node *device, int index,
 				      struct of_irq *out_irq)
 {
 	return -EINVAL;
@@ -48,10 +48,10 @@ static inline int of_irq_map_oldworld(struct device_node *device, int index,
 #endif /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
 
 
-extern int of_irq_map_raw(struct device_node *parent, const __be32 *intspec,
+extern int of_irq_parse_raw(struct device_node *parent, const __be32 *intspec,
 			  u32 ointsize, const __be32 *addr,
 			  struct of_irq *out_irq);
-extern int of_irq_map_one(struct device_node *device, int index,
+extern int of_irq_parse_one(struct device_node *device, int index,
 			  struct of_irq *out_irq);
 extern unsigned int irq_create_of_mapping(struct device_node *controller,
 					  const u32 *intspec,
diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h
index fd9c408631a0..839ba20808fe 100644
--- a/include/linux/of_pci.h
+++ b/include/linux/of_pci.h
@@ -6,7 +6,7 @@
 
 struct pci_dev;
 struct of_irq;
-int of_irq_map_pci(const struct pci_dev *pdev, struct of_irq *out_irq);
+int of_irq_parse_pci(const struct pci_dev *pdev, struct of_irq *out_irq);
 
 struct device_node;
 struct device_node *of_pci_find_child_device(struct device_node *parent,
-- 
cgit 


From 530210c7814e83564c7ca7bca8192515042c0b63 Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Sun, 15 Sep 2013 16:39:11 +0100
Subject: of/irq: Replace of_irq with of_phandle_args

struct of_irq and struct of_phandle_args are exactly the same structure.
This patch makes the kernel use of_phandle_args everywhere. This in
itself isn't a big deal, but it makes some follow-on patches simpler.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Michal Simek <monstr@monstr.eu>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/arm/mach-integrator/pci_v3.c              |  5 ++---
 arch/microblaze/pci/pci-common.c               |  9 ++++-----
 arch/mips/pci/fixup-lantiq.c                   |  5 ++---
 arch/mips/pci/pci-rt3883.c                     |  6 ++----
 arch/powerpc/kernel/pci-common.c               |  9 ++++-----
 arch/powerpc/platforms/cell/celleb_scc_pciex.c |  5 ++---
 arch/powerpc/platforms/cell/celleb_scc_sio.c   |  5 ++---
 arch/powerpc/platforms/cell/spider-pic.c       |  6 +++---
 arch/powerpc/platforms/cell/spu_manage.c       | 12 ++++++------
 arch/powerpc/platforms/fsl_uli1575.c           |  8 +++-----
 arch/powerpc/platforms/powermac/pic.c          |  8 ++++----
 arch/powerpc/platforms/pseries/event_sources.c |  7 +++----
 arch/powerpc/sysdev/mpic_msi.c                 |  6 +++---
 arch/x86/kernel/devicetree.c                   |  5 ++---
 drivers/of/irq.c                               | 15 +++++++--------
 drivers/of/of_pci_irq.c                        |  2 +-
 drivers/pci/host/pci-mvebu.c                   |  5 ++---
 include/linux/of_irq.h                         | 24 ++++--------------------
 include/linux/of_pci.h                         |  4 ++--
 19 files changed, 58 insertions(+), 88 deletions(-)

diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c
index 0f496cc51f36..2d6b4da90fb4 100644
--- a/arch/arm/mach-integrator/pci_v3.c
+++ b/arch/arm/mach-integrator/pci_v3.c
@@ -837,7 +837,7 @@ static struct hw_pci pci_v3 __initdata = {
 
 static int __init pci_v3_map_irq_dt(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	struct of_irq oirq;
+	struct of_phandle_args oirq;
 	int ret;
 
 	ret = of_irq_parse_pci(dev, &oirq);
@@ -847,8 +847,7 @@ static int __init pci_v3_map_irq_dt(const struct pci_dev *dev, u8 slot, u8 pin)
 		return 0;
 	}
 
-	return irq_create_of_mapping(oirq.controller, oirq.specifier,
-				     oirq.size);
+	return irq_create_of_mapping(oirq.np, oirq.args, oirq.args_count);
 }
 
 static int __init pci_v3_dtprobe(struct platform_device *pdev,
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index 4d5b1a9cd790..c9302c4f8a57 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -199,7 +199,7 @@ void pcibios_set_master(struct pci_dev *dev)
  */
 int pci_read_irq_line(struct pci_dev *pci_dev)
 {
-	struct of_irq oirq;
+	struct of_phandle_args oirq;
 	unsigned int virq;
 
 	/* The current device-tree that iSeries generates from the HV
@@ -243,11 +243,10 @@ int pci_read_irq_line(struct pci_dev *pci_dev)
 			irq_set_irq_type(virq, IRQ_TYPE_LEVEL_LOW);
 	} else {
 		pr_debug(" Got one, spec %d cells (0x%08x 0x%08x...) on %s\n",
-			 oirq.size, oirq.specifier[0], oirq.specifier[1],
-			 of_node_full_name(oirq.controller));
+			 oirq.args_count, oirq.args[0], oirq.args[1],
+			 of_node_full_name(oirq.np));
 
-		virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
-					     oirq.size);
+		virq = irq_create_of_mapping(oirq.np, oirq.args, oirq.args_count);
 	}
 	if (!virq) {
 		pr_debug(" Failed to map !\n");
diff --git a/arch/mips/pci/fixup-lantiq.c b/arch/mips/pci/fixup-lantiq.c
index 2e8dbfedae53..81ff0b5e6efa 100644
--- a/arch/mips/pci/fixup-lantiq.c
+++ b/arch/mips/pci/fixup-lantiq.c
@@ -25,7 +25,7 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
 
 int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	struct of_irq dev_irq;
+	struct of_phandle_args dev_irq;
 	int irq;
 
 	if (of_irq_parse_pci(dev, &dev_irq)) {
@@ -33,8 +33,7 @@ int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 			slot, pin);
 		return 0;
 	}
-	irq = irq_create_of_mapping(dev_irq.controller, dev_irq.specifier,
-					dev_irq.size);
+	irq = irq_create_of_mapping(dev_irq.np, dev_irq.args, dev_irq.args_count);
 	dev_info(&dev->dev, "SLOT:%d PIN:%d IRQ:%d\n", slot, pin, irq);
 	return irq;
 }
diff --git a/arch/mips/pci/pci-rt3883.c b/arch/mips/pci/pci-rt3883.c
index cae92a05ee70..0f08a5ba0b2a 100644
--- a/arch/mips/pci/pci-rt3883.c
+++ b/arch/mips/pci/pci-rt3883.c
@@ -583,7 +583,7 @@ err_put_intc_node:
 
 int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	struct of_irq dev_irq;
+	struct of_phandle_args dev_irq;
 	int err;
 	int irq;
 
@@ -594,9 +594,7 @@ int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 		return 0;
 	}
 
-	irq = irq_create_of_mapping(dev_irq.controller,
-				    dev_irq.specifier,
-				    dev_irq.size);
+	irq = irq_create_of_mapping(dev_irq.np, dev_irq.args, dev_irq.args_count);
 
 	if (irq == 0)
 		pr_crit("pci %s: no irq found for pin %u\n",
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 2f4185425ed5..96c46235fda2 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -228,7 +228,7 @@ int pcibios_add_platform_entries(struct pci_dev *pdev)
  */
 static int pci_read_irq_line(struct pci_dev *pci_dev)
 {
-	struct of_irq oirq;
+	struct of_phandle_args oirq;
 	unsigned int virq;
 
 	pr_debug("PCI: Try to map irq for %s...\n", pci_name(pci_dev));
@@ -263,11 +263,10 @@ static int pci_read_irq_line(struct pci_dev *pci_dev)
 			irq_set_irq_type(virq, IRQ_TYPE_LEVEL_LOW);
 	} else {
 		pr_debug(" Got one, spec %d cells (0x%08x 0x%08x...) on %s\n",
-			 oirq.size, oirq.specifier[0], oirq.specifier[1],
-			 of_node_full_name(oirq.controller));
+			 oirq.args_count, oirq.args[0], oirq.args[1],
+			 of_node_full_name(oirq.np));
 
-		virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
-					     oirq.size);
+		virq = irq_create_of_mapping(oirq.np, oirq.args, oirq.args_count);
 	}
 	if(virq == NO_IRQ) {
 		pr_debug(" Failed to map !\n");
diff --git a/arch/powerpc/platforms/cell/celleb_scc_pciex.c b/arch/powerpc/platforms/cell/celleb_scc_pciex.c
index 40bc371096b7..e8d34d1f640d 100644
--- a/arch/powerpc/platforms/cell/celleb_scc_pciex.c
+++ b/arch/powerpc/platforms/cell/celleb_scc_pciex.c
@@ -486,7 +486,7 @@ static __init int celleb_setup_pciex(struct device_node *node,
 				     struct pci_controller *phb)
 {
 	struct resource	r;
-	struct of_irq oirq;
+	struct of_phandle_args oirq;
 	int virq;
 
 	/* SMMIO registers; used inside this file */
@@ -511,8 +511,7 @@ static __init int celleb_setup_pciex(struct device_node *node,
 		pr_err("PCIEXC:Failed to map irq\n");
 		goto error;
 	}
-	virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
-				     oirq.size);
+	virq = irq_create_of_mapping(oirq.np, oirq.args, oirq.args_count);
 	if (request_irq(virq, pciex_handle_internal_irq,
 			0, "pciex", (void *)phb)) {
 		pr_err("PCIEXC:Failed to request irq\n");
diff --git a/arch/powerpc/platforms/cell/celleb_scc_sio.c b/arch/powerpc/platforms/cell/celleb_scc_sio.c
index 96388b202f4e..06046d512130 100644
--- a/arch/powerpc/platforms/cell/celleb_scc_sio.c
+++ b/arch/powerpc/platforms/cell/celleb_scc_sio.c
@@ -45,7 +45,7 @@ static int __init txx9_serial_init(void)
 	struct device_node *node;
 	int i;
 	struct uart_port req;
-	struct of_irq irq;
+	struct of_phandle_args irq;
 	struct resource res;
 
 	for_each_compatible_node(node, "serial", "toshiba,sio-scc") {
@@ -66,8 +66,7 @@ static int __init txx9_serial_init(void)
 #ifdef CONFIG_SERIAL_TXX9_CONSOLE
 			req.membase = ioremap(req.mapbase, 0x24);
 #endif
-			req.irq = irq_create_of_mapping(irq.controller,
-				irq.specifier, irq.size);
+			req.irq = irq_create_of_mapping(irq.np, irq.args, irq.args_count);
 			req.flags |= UPF_IOREMAP | UPF_BUGGY_UART
 				/*HAVE_CTS_LINE*/;
 			req.uartclk = 83300000;
diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c
index b491f406560a..6e842fdbfcab 100644
--- a/arch/powerpc/platforms/cell/spider-pic.c
+++ b/arch/powerpc/platforms/cell/spider-pic.c
@@ -235,10 +235,10 @@ static unsigned int __init spider_find_cascade_and_node(struct spider_pic *pic)
 	/* First, we check whether we have a real "interrupts" in the device
 	 * tree in case the device-tree is ever fixed
 	 */
-	struct of_irq oirq;
+	struct of_phandle_args oirq;
 	if (of_irq_parse_one(pic->host->of_node, 0, &oirq) == 0) {
-		virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
-					     oirq.size);
+		virq = irq_create_of_mapping(oirq.np, oirq.args,
+					     oirq.args_count);
 		return virq;
 	}
 
diff --git a/arch/powerpc/platforms/cell/spu_manage.c b/arch/powerpc/platforms/cell/spu_manage.c
index e6cdb81a0959..e9eb4f83b1d5 100644
--- a/arch/powerpc/platforms/cell/spu_manage.c
+++ b/arch/powerpc/platforms/cell/spu_manage.c
@@ -177,7 +177,7 @@ out:
 
 static int __init spu_map_interrupts(struct spu *spu, struct device_node *np)
 {
-	struct of_irq oirq;
+	struct of_phandle_args oirq;
 	int ret;
 	int i;
 
@@ -188,10 +188,10 @@ static int __init spu_map_interrupts(struct spu *spu, struct device_node *np)
 			goto err;
 		}
 		ret = -EINVAL;
-		pr_debug("  irq %d no 0x%x on %s\n", i, oirq.specifier[0],
-			 oirq.controller->full_name);
-		spu->irqs[i] = irq_create_of_mapping(oirq.controller,
-					oirq.specifier, oirq.size);
+		pr_debug("  irq %d no 0x%x on %s\n", i, oirq.args[0],
+			 oirq.np->full_name);
+		spu->irqs[i] = irq_create_of_mapping(oirq.np,
+					oirq.args, oirq.args_count);
 		if (spu->irqs[i] == NO_IRQ) {
 			pr_debug("spu_new: failed to map it !\n");
 			goto err;
@@ -200,7 +200,7 @@ static int __init spu_map_interrupts(struct spu *spu, struct device_node *np)
 	return 0;
 
 err:
-	pr_debug("failed to map irq %x for spu %s\n", *oirq.specifier,
+	pr_debug("failed to map irq %x for spu %s\n", *oirq.args,
 		spu->name);
 	for (; i >= 0; i--) {
 		if (spu->irqs[i] != NO_IRQ)
diff --git a/arch/powerpc/platforms/fsl_uli1575.c b/arch/powerpc/platforms/fsl_uli1575.c
index ac539c1cd808..288226deffa3 100644
--- a/arch/powerpc/platforms/fsl_uli1575.c
+++ b/arch/powerpc/platforms/fsl_uli1575.c
@@ -321,8 +321,8 @@ static void hpcd_final_uli5288(struct pci_dev *dev)
 {
 	struct pci_controller *hose = pci_bus_to_host(dev->bus);
 	struct device_node *hosenode = hose ? hose->dn : NULL;
-	struct of_irq oirq;
-	int virq, pin = 2;
+	struct of_phandle_args oirq;
+	int pin = 2;
 	u32 laddr[3];
 
 	if (!machine_is(mpc86xx_hpcd))
@@ -334,9 +334,7 @@ static void hpcd_final_uli5288(struct pci_dev *dev)
 	laddr[0] = (hose->first_busno << 16) | (PCI_DEVFN(31, 0) << 8);
 	laddr[1] = laddr[2] = 0;
 	of_irq_parse_raw(hosenode, &pin, 1, laddr, &oirq);
-	virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
-				     oirq.size);
-	dev->irq = virq;
+	dev->irq = irq_create_of_mapping(oirq.np, oirq.args, oirq.args_count);
 }
 
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x1575, hpcd_quirk_uli1575);
diff --git a/arch/powerpc/platforms/powermac/pic.c b/arch/powerpc/platforms/powermac/pic.c
index 720663e29f47..4c24bf60d39d 100644
--- a/arch/powerpc/platforms/powermac/pic.c
+++ b/arch/powerpc/platforms/powermac/pic.c
@@ -394,7 +394,7 @@ static void __init pmac_pic_probe_oldstyle(void)
 }
 
 int of_irq_parse_oldworld(struct device_node *device, int index,
-			struct of_irq *out_irq)
+			struct of_phandle_args *out_irq)
 {
 	const u32 *ints = NULL;
 	int intlen;
@@ -422,9 +422,9 @@ int of_irq_parse_oldworld(struct device_node *device, int index,
 	if (index >= intlen)
 		return -EINVAL;
 
-	out_irq->controller = NULL;
-	out_irq->specifier[0] = ints[index];
-	out_irq->size = 1;
+	out_irq->np = NULL;
+	out_irq->args[0] = ints[index];
+	out_irq->args_count = 1;
 
 	return 0;
 }
diff --git a/arch/powerpc/platforms/pseries/event_sources.c b/arch/powerpc/platforms/pseries/event_sources.c
index 850c18c457ad..6dcf9cc38ffb 100644
--- a/arch/powerpc/platforms/pseries/event_sources.c
+++ b/arch/powerpc/platforms/pseries/event_sources.c
@@ -25,7 +25,7 @@ void request_event_sources_irqs(struct device_node *np,
 				const char *name)
 {
 	int i, index, count = 0;
-	struct of_irq oirq;
+	struct of_phandle_args oirq;
 	const u32 *opicprop;
 	unsigned int opicplen;
 	unsigned int virqs[16];
@@ -59,9 +59,8 @@ void request_event_sources_irqs(struct device_node *np,
 		     index++) {
 			if (count > 15)
 				break;
-			virqs[count] = irq_create_of_mapping(oirq.controller,
-							    oirq.specifier,
-							    oirq.size);
+			virqs[count] = irq_create_of_mapping(oirq.np, oirq.args,
+							    oirq.args_count);
 			if (virqs[count] == NO_IRQ) {
 				pr_err("event-sources: Unable to allocate "
 				       "interrupt number for %s\n",
diff --git a/arch/powerpc/sysdev/mpic_msi.c b/arch/powerpc/sysdev/mpic_msi.c
index 463e3a7c193c..7dc39f35a4cc 100644
--- a/arch/powerpc/sysdev/mpic_msi.c
+++ b/arch/powerpc/sysdev/mpic_msi.c
@@ -35,7 +35,7 @@ static int mpic_msi_reserve_u3_hwirqs(struct mpic *mpic)
 	const struct irq_domain_ops *ops = mpic->irqhost->ops;
 	struct device_node *np;
 	int flags, index, i;
-	struct of_irq oirq;
+	struct of_phandle_args oirq;
 
 	pr_debug("mpic: found U3, guessing msi allocator setup\n");
 
@@ -64,8 +64,8 @@ static int mpic_msi_reserve_u3_hwirqs(struct mpic *mpic)
 
 		index = 0;
 		while (of_irq_parse_one(np, index++, &oirq) == 0) {
-			ops->xlate(mpic->irqhost, NULL, oirq.specifier,
-						oirq.size, &hwirq, &flags);
+			ops->xlate(mpic->irqhost, NULL, oirq.args,
+						oirq.args_count, &hwirq, &flags);
 			msi_bitmap_reserve_hwirq(&mpic->msi_bitmap, hwirq);
 		}
 	}
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 3ac6398e5361..00986988a10e 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -105,7 +105,7 @@ struct device_node *pcibios_get_phb_of_node(struct pci_bus *bus)
 
 static int x86_of_pci_irq_enable(struct pci_dev *dev)
 {
-	struct of_irq oirq;
+	struct of_phandle_args oirq;
 	u32 virq;
 	int ret;
 	u8 pin;
@@ -120,8 +120,7 @@ static int x86_of_pci_irq_enable(struct pci_dev *dev)
 	if (ret)
 		return ret;
 
-	virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
-			oirq.size);
+	virq = irq_create_of_mapping(oirq.np, oirq.args, oirq.args_count);
 	if (virq == 0)
 		return -EINVAL;
 	dev->irq = virq;
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 410aa2415f42..a7db38a63403 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -36,13 +36,12 @@
  */
 unsigned int irq_of_parse_and_map(struct device_node *dev, int index)
 {
-	struct of_irq oirq;
+	struct of_phandle_args oirq;
 
 	if (of_irq_parse_one(dev, index, &oirq))
 		return 0;
 
-	return irq_create_of_mapping(oirq.controller, oirq.specifier,
-				     oirq.size);
+	return irq_create_of_mapping(oirq.np, oirq.args, oirq.args_count);
 }
 EXPORT_SYMBOL_GPL(irq_of_parse_and_map);
 
@@ -94,7 +93,7 @@ struct device_node *of_irq_find_parent(struct device_node *child)
  * node exist for the parent.
  */
 int of_irq_parse_raw(struct device_node *parent, const __be32 *intspec,
-		   u32 ointsize, const __be32 *addr, struct of_irq *out_irq)
+		   u32 ointsize, const __be32 *addr, struct of_phandle_args *out_irq)
 {
 	struct device_node *ipar, *tnode, *old = NULL, *newpar = NULL;
 	const __be32 *tmp, *imap, *imask;
@@ -156,10 +155,10 @@ int of_irq_parse_raw(struct device_node *parent, const __be32 *intspec,
 				NULL) {
 			pr_debug(" -> got it !\n");
 			for (i = 0; i < intsize; i++)
-				out_irq->specifier[i] =
+				out_irq->args[i] =
 						of_read_number(intspec +i, 1);
-			out_irq->size = intsize;
-			out_irq->controller = ipar;
+			out_irq->args_count = intsize;
+			out_irq->np = ipar;
 			of_node_put(old);
 			return 0;
 		}
@@ -280,7 +279,7 @@ EXPORT_SYMBOL_GPL(of_irq_parse_raw);
  * This function resolves an interrupt, walking the tree, for a given
  * device-tree node. It's the high level pendant to of_irq_parse_raw().
  */
-int of_irq_parse_one(struct device_node *device, int index, struct of_irq *out_irq)
+int of_irq_parse_one(struct device_node *device, int index, struct of_phandle_args *out_irq)
 {
 	struct device_node *p;
 	const __be32 *intspec, *tmp, *addr;
diff --git a/drivers/of/of_pci_irq.c b/drivers/of/of_pci_irq.c
index dceec1048dab..ee3293d4b66b 100644
--- a/drivers/of/of_pci_irq.c
+++ b/drivers/of/of_pci_irq.c
@@ -15,7 +15,7 @@
  * PCI tree until an device-node is found, at which point it will finish
  * resolving using the OF tree walking.
  */
-int of_irq_parse_pci(const struct pci_dev *pdev, struct of_irq *out_irq)
+int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq)
 {
 	struct device_node *dn, *ppnode;
 	struct pci_dev *ppdev;
diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index 05f81807d05b..c5e57f82b9af 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -647,15 +647,14 @@ static int __init mvebu_pcie_setup(int nr, struct pci_sys_data *sys)
 
 static int __init mvebu_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	struct of_irq oirq;
+	struct of_phandle_args oirq;
 	int ret;
 
 	ret = of_irq_parse_pci(dev, &oirq);
 	if (ret)
 		return ret;
 
-	return irq_create_of_mapping(oirq.controller, oirq.specifier,
-				     oirq.size);
+	return irq_create_of_mapping(oirq.np, oirq.args, oirq.args_count);
 }
 
 static struct pci_bus *mvebu_pcie_scan_bus(int nr, struct pci_sys_data *sys)
diff --git a/include/linux/of_irq.h b/include/linux/of_irq.h
index a00bc71e62a3..8d9f85560d48 100644
--- a/include/linux/of_irq.h
+++ b/include/linux/of_irq.h
@@ -8,22 +8,6 @@
 #include <linux/ioport.h>
 #include <linux/of.h>
 
-/**
- * of_irq - container for device_node/irq_specifier pair for an irq controller
- * @controller: pointer to interrupt controller device tree node
- * @size: size of interrupt specifier
- * @specifier: array of cells @size long specifing the specific interrupt
- *
- * This structure is returned when an interrupt is mapped. The controller
- * field needs to be put() after use
- */
-#define OF_MAX_IRQ_SPEC		4 /* We handle specifiers of at most 4 cells */
-struct of_irq {
-	struct device_node *controller; /* Interrupt controller node */
-	u32 size; /* Specifier size */
-	u32 specifier[OF_MAX_IRQ_SPEC]; /* Specifier copy */
-};
-
 typedef int (*of_irq_init_cb_t)(struct device_node *, struct device_node *);
 
 /*
@@ -36,12 +20,12 @@ typedef int (*of_irq_init_cb_t)(struct device_node *, struct device_node *);
 extern unsigned int of_irq_workarounds;
 extern struct device_node *of_irq_dflt_pic;
 extern int of_irq_parse_oldworld(struct device_node *device, int index,
-			       struct of_irq *out_irq);
+			       struct of_phandle_args *out_irq);
 #else /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
 #define of_irq_workarounds (0)
 #define of_irq_dflt_pic (NULL)
 static inline int of_irq_parse_oldworld(struct device_node *device, int index,
-				      struct of_irq *out_irq)
+				      struct of_phandle_args *out_irq)
 {
 	return -EINVAL;
 }
@@ -50,9 +34,9 @@ static inline int of_irq_parse_oldworld(struct device_node *device, int index,
 
 extern int of_irq_parse_raw(struct device_node *parent, const __be32 *intspec,
 			  u32 ointsize, const __be32 *addr,
-			  struct of_irq *out_irq);
+			  struct of_phandle_args *out_irq);
 extern int of_irq_parse_one(struct device_node *device, int index,
-			  struct of_irq *out_irq);
+			  struct of_phandle_args *out_irq);
 extern unsigned int irq_create_of_mapping(struct device_node *controller,
 					  const u32 *intspec,
 					  unsigned int intsize);
diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h
index 839ba20808fe..f297237349e8 100644
--- a/include/linux/of_pci.h
+++ b/include/linux/of_pci.h
@@ -5,8 +5,8 @@
 #include <linux/msi.h>
 
 struct pci_dev;
-struct of_irq;
-int of_irq_parse_pci(const struct pci_dev *pdev, struct of_irq *out_irq);
+struct of_phandle_args;
+int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq);
 
 struct device_node;
 struct device_node *of_pci_find_child_device(struct device_node *parent,
-- 
cgit 


From e6d30ab1e7d1281784672c0fc2ffa385cfb7279e Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Sun, 15 Sep 2013 16:55:53 +0100
Subject: of/irq: simplify args to irq_create_of_mapping

All the callers of irq_create_of_mapping() pass the contents of a struct
of_phandle_args structure to the function. Since all the callers already
have an of_phandle_args pointer, why not pass it directly to
irq_create_of_mapping()?

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Michal Simek <monstr@monstr.eu>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/arm/mach-integrator/pci_v3.c              |  2 +-
 arch/microblaze/pci/pci-common.c               |  2 +-
 arch/mips/pci/fixup-lantiq.c                   |  2 +-
 arch/mips/pci/pci-rt3883.c                     |  2 +-
 arch/powerpc/kernel/pci-common.c               |  2 +-
 arch/powerpc/platforms/cell/celleb_scc_pciex.c |  2 +-
 arch/powerpc/platforms/cell/celleb_scc_sio.c   |  2 +-
 arch/powerpc/platforms/cell/spider-pic.c       |  7 ++-----
 arch/powerpc/platforms/cell/spu_manage.c       |  3 +--
 arch/powerpc/platforms/fsl_uli1575.c           |  2 +-
 arch/powerpc/platforms/pseries/event_sources.c |  3 +--
 arch/x86/kernel/devicetree.c                   |  2 +-
 drivers/of/irq.c                               |  2 +-
 drivers/pci/host/pci-mvebu.c                   |  2 +-
 include/linux/of_irq.h                         |  4 +---
 kernel/irq/irqdomain.c                         | 13 ++++++-------
 16 files changed, 22 insertions(+), 30 deletions(-)

diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c
index 2d6b4da90fb4..bb3aeb31a54e 100644
--- a/arch/arm/mach-integrator/pci_v3.c
+++ b/arch/arm/mach-integrator/pci_v3.c
@@ -847,7 +847,7 @@ static int __init pci_v3_map_irq_dt(const struct pci_dev *dev, u8 slot, u8 pin)
 		return 0;
 	}
 
-	return irq_create_of_mapping(oirq.np, oirq.args, oirq.args_count);
+	return irq_create_of_mapping(&oirq);
 }
 
 static int __init pci_v3_dtprobe(struct platform_device *pdev,
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index c9302c4f8a57..60b386c72c57 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -246,7 +246,7 @@ int pci_read_irq_line(struct pci_dev *pci_dev)
 			 oirq.args_count, oirq.args[0], oirq.args[1],
 			 of_node_full_name(oirq.np));
 
-		virq = irq_create_of_mapping(oirq.np, oirq.args, oirq.args_count);
+		virq = irq_create_of_mapping(&oirq);
 	}
 	if (!virq) {
 		pr_debug(" Failed to map !\n");
diff --git a/arch/mips/pci/fixup-lantiq.c b/arch/mips/pci/fixup-lantiq.c
index 81ff0b5e6efa..aef60e75003e 100644
--- a/arch/mips/pci/fixup-lantiq.c
+++ b/arch/mips/pci/fixup-lantiq.c
@@ -33,7 +33,7 @@ int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 			slot, pin);
 		return 0;
 	}
-	irq = irq_create_of_mapping(dev_irq.np, dev_irq.args, dev_irq.args_count);
+	irq = irq_create_of_mapping(&dev_irq);
 	dev_info(&dev->dev, "SLOT:%d PIN:%d IRQ:%d\n", slot, pin, irq);
 	return irq;
 }
diff --git a/arch/mips/pci/pci-rt3883.c b/arch/mips/pci/pci-rt3883.c
index 0f08a5ba0b2a..eadc4310cd36 100644
--- a/arch/mips/pci/pci-rt3883.c
+++ b/arch/mips/pci/pci-rt3883.c
@@ -594,7 +594,7 @@ int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 		return 0;
 	}
 
-	irq = irq_create_of_mapping(dev_irq.np, dev_irq.args, dev_irq.args_count);
+	irq = irq_create_of_mapping(&dev_irq);
 
 	if (irq == 0)
 		pr_crit("pci %s: no irq found for pin %u\n",
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 96c46235fda2..a1e3e40ca3fd 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -266,7 +266,7 @@ static int pci_read_irq_line(struct pci_dev *pci_dev)
 			 oirq.args_count, oirq.args[0], oirq.args[1],
 			 of_node_full_name(oirq.np));
 
-		virq = irq_create_of_mapping(oirq.np, oirq.args, oirq.args_count);
+		virq = irq_create_of_mapping(&oirq);
 	}
 	if(virq == NO_IRQ) {
 		pr_debug(" Failed to map !\n");
diff --git a/arch/powerpc/platforms/cell/celleb_scc_pciex.c b/arch/powerpc/platforms/cell/celleb_scc_pciex.c
index e8d34d1f640d..b3ea96db5b06 100644
--- a/arch/powerpc/platforms/cell/celleb_scc_pciex.c
+++ b/arch/powerpc/platforms/cell/celleb_scc_pciex.c
@@ -511,7 +511,7 @@ static __init int celleb_setup_pciex(struct device_node *node,
 		pr_err("PCIEXC:Failed to map irq\n");
 		goto error;
 	}
-	virq = irq_create_of_mapping(oirq.np, oirq.args, oirq.args_count);
+	virq = irq_create_of_mapping(&oirq);
 	if (request_irq(virq, pciex_handle_internal_irq,
 			0, "pciex", (void *)phb)) {
 		pr_err("PCIEXC:Failed to request irq\n");
diff --git a/arch/powerpc/platforms/cell/celleb_scc_sio.c b/arch/powerpc/platforms/cell/celleb_scc_sio.c
index 06046d512130..c8eb57193826 100644
--- a/arch/powerpc/platforms/cell/celleb_scc_sio.c
+++ b/arch/powerpc/platforms/cell/celleb_scc_sio.c
@@ -66,7 +66,7 @@ static int __init txx9_serial_init(void)
 #ifdef CONFIG_SERIAL_TXX9_CONSOLE
 			req.membase = ioremap(req.mapbase, 0x24);
 #endif
-			req.irq = irq_create_of_mapping(irq.np, irq.args, irq.args_count);
+			req.irq = irq_create_of_mapping(&irq);
 			req.flags |= UPF_IOREMAP | UPF_BUGGY_UART
 				/*HAVE_CTS_LINE*/;
 			req.uartclk = 83300000;
diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c
index 6e842fdbfcab..d20680446174 100644
--- a/arch/powerpc/platforms/cell/spider-pic.c
+++ b/arch/powerpc/platforms/cell/spider-pic.c
@@ -236,11 +236,8 @@ static unsigned int __init spider_find_cascade_and_node(struct spider_pic *pic)
 	 * tree in case the device-tree is ever fixed
 	 */
 	struct of_phandle_args oirq;
-	if (of_irq_parse_one(pic->host->of_node, 0, &oirq) == 0) {
-		virq = irq_create_of_mapping(oirq.np, oirq.args,
-					     oirq.args_count);
-		return virq;
-	}
+	if (of_irq_parse_one(pic->host->of_node, 0, &oirq) == 0)
+		return irq_create_of_mapping(&oirq);
 
 	/* Now do the horrible hacks */
 	tmp = of_get_property(pic->host->of_node, "#interrupt-cells", NULL);
diff --git a/arch/powerpc/platforms/cell/spu_manage.c b/arch/powerpc/platforms/cell/spu_manage.c
index e9eb4f83b1d5..c3327f3d8cf7 100644
--- a/arch/powerpc/platforms/cell/spu_manage.c
+++ b/arch/powerpc/platforms/cell/spu_manage.c
@@ -190,8 +190,7 @@ static int __init spu_map_interrupts(struct spu *spu, struct device_node *np)
 		ret = -EINVAL;
 		pr_debug("  irq %d no 0x%x on %s\n", i, oirq.args[0],
 			 oirq.np->full_name);
-		spu->irqs[i] = irq_create_of_mapping(oirq.np,
-					oirq.args, oirq.args_count);
+		spu->irqs[i] = irq_create_of_mapping(&oirq);
 		if (spu->irqs[i] == NO_IRQ) {
 			pr_debug("spu_new: failed to map it !\n");
 			goto err;
diff --git a/arch/powerpc/platforms/fsl_uli1575.c b/arch/powerpc/platforms/fsl_uli1575.c
index 288226deffa3..8904046556ad 100644
--- a/arch/powerpc/platforms/fsl_uli1575.c
+++ b/arch/powerpc/platforms/fsl_uli1575.c
@@ -334,7 +334,7 @@ static void hpcd_final_uli5288(struct pci_dev *dev)
 	laddr[0] = (hose->first_busno << 16) | (PCI_DEVFN(31, 0) << 8);
 	laddr[1] = laddr[2] = 0;
 	of_irq_parse_raw(hosenode, &pin, 1, laddr, &oirq);
-	dev->irq = irq_create_of_mapping(oirq.np, oirq.args, oirq.args_count);
+	dev->irq = irq_create_of_mapping(&oirq);
 }
 
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_AL, 0x1575, hpcd_quirk_uli1575);
diff --git a/arch/powerpc/platforms/pseries/event_sources.c b/arch/powerpc/platforms/pseries/event_sources.c
index 6dcf9cc38ffb..18380e8f6dfe 100644
--- a/arch/powerpc/platforms/pseries/event_sources.c
+++ b/arch/powerpc/platforms/pseries/event_sources.c
@@ -59,8 +59,7 @@ void request_event_sources_irqs(struct device_node *np,
 		     index++) {
 			if (count > 15)
 				break;
-			virqs[count] = irq_create_of_mapping(oirq.np, oirq.args,
-							    oirq.args_count);
+			virqs[count] = irq_create_of_mapping(&oirq);
 			if (virqs[count] == NO_IRQ) {
 				pr_err("event-sources: Unable to allocate "
 				       "interrupt number for %s\n",
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index 00986988a10e..d39948f654a0 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -120,7 +120,7 @@ static int x86_of_pci_irq_enable(struct pci_dev *dev)
 	if (ret)
 		return ret;
 
-	virq = irq_create_of_mapping(oirq.np, oirq.args, oirq.args_count);
+	virq = irq_create_of_mapping(&oirq);
 	if (virq == 0)
 		return -EINVAL;
 	dev->irq = virq;
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index a7db38a63403..84184c44e8db 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -41,7 +41,7 @@ unsigned int irq_of_parse_and_map(struct device_node *dev, int index)
 	if (of_irq_parse_one(dev, index, &oirq))
 		return 0;
 
-	return irq_create_of_mapping(oirq.np, oirq.args, oirq.args_count);
+	return irq_create_of_mapping(&oirq);
 }
 EXPORT_SYMBOL_GPL(irq_of_parse_and_map);
 
diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index c5e57f82b9af..3a8d01ec50f7 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -654,7 +654,7 @@ static int __init mvebu_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 	if (ret)
 		return ret;
 
-	return irq_create_of_mapping(oirq.np, oirq.args, oirq.args_count);
+	return irq_create_of_mapping(&oirq);
 }
 
 static struct pci_bus *mvebu_pcie_scan_bus(int nr, struct pci_sys_data *sys)
diff --git a/include/linux/of_irq.h b/include/linux/of_irq.h
index 8d9f85560d48..3bbba8d6adc8 100644
--- a/include/linux/of_irq.h
+++ b/include/linux/of_irq.h
@@ -37,9 +37,7 @@ extern int of_irq_parse_raw(struct device_node *parent, const __be32 *intspec,
 			  struct of_phandle_args *out_irq);
 extern int of_irq_parse_one(struct device_node *device, int index,
 			  struct of_phandle_args *out_irq);
-extern unsigned int irq_create_of_mapping(struct device_node *controller,
-					  const u32 *intspec,
-					  unsigned int intsize);
+extern unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data);
 extern int of_irq_to_resource(struct device_node *dev, int index,
 			      struct resource *r);
 extern int of_irq_count(struct device_node *dev);
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 706724e9835d..cf68bb36fe58 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -465,27 +465,26 @@ int irq_create_strict_mappings(struct irq_domain *domain, unsigned int irq_base,
 }
 EXPORT_SYMBOL_GPL(irq_create_strict_mappings);
 
-unsigned int irq_create_of_mapping(struct device_node *controller,
-				   const u32 *intspec, unsigned int intsize)
+unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data)
 {
 	struct irq_domain *domain;
 	irq_hw_number_t hwirq;
 	unsigned int type = IRQ_TYPE_NONE;
 	unsigned int virq;
 
-	domain = controller ? irq_find_host(controller) : irq_default_domain;
+	domain = irq_data->np ? irq_find_host(irq_data->np) : irq_default_domain;
 	if (!domain) {
 		pr_warn("no irq domain found for %s !\n",
-			of_node_full_name(controller));
+			of_node_full_name(irq_data->np));
 		return 0;
 	}
 
 	/* If domain has no translation, then we assume interrupt line */
 	if (domain->ops->xlate == NULL)
-		hwirq = intspec[0];
+		hwirq = irq_data->args[0];
 	else {
-		if (domain->ops->xlate(domain, controller, intspec, intsize,
-				     &hwirq, &type))
+		if (domain->ops->xlate(domain, irq_data->np, irq_data->args,
+					irq_data->args_count, &hwirq, &type))
 			return 0;
 	}
 
-- 
cgit 


From 2361613206e66ce59cc0e08efa8d98ec15b84ed1 Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Sun, 15 Sep 2013 22:32:39 +0100
Subject: of/irq: Refactor interrupt-map parsing

All the users of of_irq_parse_raw pass in a raw interrupt specifier from
the device tree and expect it to be returned (possibly modified) in an
of_phandle_args structure. However, the primary function of
of_irq_parse_raw() is to check for translations due to the presence of
one or more interrupt-map properties. The actual placing of the data
into an of_phandle_args structure is trivial. If it is refactored to
accept an of_phandle_args structure directly, then it becomes possible
to consume of_phandle_args from other sources. This is important for an
upcoming patch that allows a device to be connected to more than one
interrupt parent. It also simplifies the code a bit.

The biggest complication with this patch is that the old version works
on the interrupt specifiers in __be32 form, but the of_phandle_args
structure is intended to carry it in the cpu-native version. A bit of
churn was required to make this work. In the end it results in tighter
code, so the churn is worth it.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/fsl_uli1575.c |   6 +-
 drivers/of/irq.c                     | 108 ++++++++++++++++++-----------------
 drivers/of/of_pci_irq.c              |   7 ++-
 include/linux/of_irq.h               |   5 +-
 4 files changed, 67 insertions(+), 59 deletions(-)

diff --git a/arch/powerpc/platforms/fsl_uli1575.c b/arch/powerpc/platforms/fsl_uli1575.c
index 8904046556ad..b97f6f3d3c5b 100644
--- a/arch/powerpc/platforms/fsl_uli1575.c
+++ b/arch/powerpc/platforms/fsl_uli1575.c
@@ -322,7 +322,6 @@ static void hpcd_final_uli5288(struct pci_dev *dev)
 	struct pci_controller *hose = pci_bus_to_host(dev->bus);
 	struct device_node *hosenode = hose ? hose->dn : NULL;
 	struct of_phandle_args oirq;
-	int pin = 2;
 	u32 laddr[3];
 
 	if (!machine_is(mpc86xx_hpcd))
@@ -331,9 +330,12 @@ static void hpcd_final_uli5288(struct pci_dev *dev)
 	if (!hosenode)
 		return;
 
+	oirq.np = hosenode;
+	oirq.args[0] = 2;
+	oirq.args_count = 1;
 	laddr[0] = (hose->first_busno << 16) | (PCI_DEVFN(31, 0) << 8);
 	laddr[1] = laddr[2] = 0;
-	of_irq_parse_raw(hosenode, &pin, 1, laddr, &oirq);
+	of_irq_parse_raw(laddr, &oirq);
 	dev->irq = irq_create_of_mapping(&oirq);
 }
 
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 84184c44e8db..0ed5ed4a5f9b 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -80,31 +80,32 @@ struct device_node *of_irq_find_parent(struct device_node *child)
 /**
  * of_irq_parse_raw - Low level interrupt tree parsing
  * @parent:	the device interrupt parent
- * @intspec:	interrupt specifier ("interrupts" property of the device)
- * @ointsize:   size of the passed in interrupt specifier
- * @addr:	address specifier (start of "reg" property of the device)
- * @out_irq:	structure of_irq filled by this function
+ * @addr:	address specifier (start of "reg" property of the device) in be32 format
+ * @out_irq:	structure of_irq updated by this function
  *
  * Returns 0 on success and a negative number on error
  *
  * This function is a low-level interrupt tree walking function. It
  * can be used to do a partial walk with synthetized reg and interrupts
  * properties, for example when resolving PCI interrupts when no device
- * node exist for the parent.
+ * node exist for the parent. It takes an interrupt specifier structure as
+ * input, walks the tree looking for any interrupt-map properties, translates
+ * the specifier for each map, and then returns the translated map.
  */
-int of_irq_parse_raw(struct device_node *parent, const __be32 *intspec,
-		   u32 ointsize, const __be32 *addr, struct of_phandle_args *out_irq)
+int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
 {
 	struct device_node *ipar, *tnode, *old = NULL, *newpar = NULL;
-	const __be32 *tmp, *imap, *imask;
+	__be32 initial_match_array[8];
+	const __be32 *match_array = initial_match_array;
+	const __be32 *tmp, *imap, *imask, dummy_imask[] = { ~0, ~0, ~0, ~0, ~0 };
 	u32 intsize = 1, addrsize, newintsize = 0, newaddrsize = 0;
 	int imaplen, match, i;
 
 	pr_debug("of_irq_parse_raw: par=%s,intspec=[0x%08x 0x%08x...],ointsize=%d\n",
-		 of_node_full_name(parent), be32_to_cpup(intspec),
-		 be32_to_cpup(intspec + 1), ointsize);
+		 of_node_full_name(out_irq->np), out_irq->args[0], out_irq->args[1],
+		 out_irq->args_count);
 
-	ipar = of_node_get(parent);
+	ipar = of_node_get(out_irq->np);
 
 	/* First get the #interrupt-cells property of the current cursor
 	 * that tells us how to interpret the passed-in intspec. If there
@@ -127,7 +128,7 @@ int of_irq_parse_raw(struct device_node *parent, const __be32 *intspec,
 
 	pr_debug("of_irq_parse_raw: ipar=%s, size=%d\n", of_node_full_name(ipar), intsize);
 
-	if (ointsize != intsize)
+	if (out_irq->args_count != intsize)
 		return -EINVAL;
 
 	/* Look for this #address-cells. We have to implement the old linux
@@ -146,6 +147,21 @@ int of_irq_parse_raw(struct device_node *parent, const __be32 *intspec,
 
 	pr_debug(" -> addrsize=%d\n", addrsize);
 
+	/* If we were passed no "reg" property and we attempt to parse
+	 * an interrupt-map, then #address-cells must be 0.
+	 * Fail if it's not.
+	 */
+	if (addr == NULL && addrsize != 0) {
+		pr_debug(" -> no reg passed in when needed !\n");
+		return -EINVAL;
+	}
+
+	/* Precalculate the match array - this simplifies match loop */
+	for (i = 0; i < addrsize; i++)
+		initial_match_array[i] = addr[i];
+	for (i = 0; i < intsize; i++)
+		initial_match_array[addrsize + i] = cpu_to_be32(out_irq->args[i]);
+
 	/* Now start the actual "proper" walk of the interrupt tree */
 	while (ipar != NULL) {
 		/* Now check if cursor is an interrupt-controller and if it is
@@ -154,11 +170,6 @@ int of_irq_parse_raw(struct device_node *parent, const __be32 *intspec,
 		if (of_get_property(ipar, "interrupt-controller", NULL) !=
 				NULL) {
 			pr_debug(" -> got it !\n");
-			for (i = 0; i < intsize; i++)
-				out_irq->args[i] =
-						of_read_number(intspec +i, 1);
-			out_irq->args_count = intsize;
-			out_irq->np = ipar;
 			of_node_put(old);
 			return 0;
 		}
@@ -175,34 +186,16 @@ int of_irq_parse_raw(struct device_node *parent, const __be32 *intspec,
 
 		/* Look for a mask */
 		imask = of_get_property(ipar, "interrupt-map-mask", NULL);
-
-		/* If we were passed no "reg" property and we attempt to parse
-		 * an interrupt-map, then #address-cells must be 0.
-		 * Fail if it's not.
-		 */
-		if (addr == NULL && addrsize != 0) {
-			pr_debug(" -> no reg passed in when needed !\n");
-			goto fail;
-		}
+		if (!imask)
+			imask = dummy_imask;
 
 		/* Parse interrupt-map */
 		match = 0;
 		while (imaplen > (addrsize + intsize + 1) && !match) {
 			/* Compare specifiers */
 			match = 1;
-			for (i = 0; i < addrsize && match; ++i) {
-				__be32 mask = imask ? imask[i]
-						    : cpu_to_be32(0xffffffffu);
-				match = ((addr[i] ^ imap[i]) & mask) == 0;
-			}
-			for (; i < (addrsize + intsize) && match; ++i) {
-				__be32 mask = imask ? imask[i]
-						    : cpu_to_be32(0xffffffffu);
-				match =
-				   ((intspec[i-addrsize] ^ imap[i]) & mask) == 0;
-			}
-			imap += addrsize + intsize;
-			imaplen -= addrsize + intsize;
+			for (i = 0; i < (addrsize + intsize); i++, imaplen--)
+				match = !((match_array[i] ^ *imap++) & imask[i]);
 
 			pr_debug(" -> match=%d (imaplen=%d)\n", match, imaplen);
 
@@ -247,12 +240,18 @@ int of_irq_parse_raw(struct device_node *parent, const __be32 *intspec,
 		if (!match)
 			goto fail;
 
-		of_node_put(old);
-		old = of_node_get(newpar);
+		/*
+		 * Successfully parsed an interrrupt-map translation; copy new
+		 * interrupt specifier into the out_irq structure
+		 */
+		of_node_put(out_irq->np);
+		out_irq->np = of_node_get(newpar);
+
+		match_array = imap - newaddrsize - newintsize;
+		for (i = 0; i < newintsize; i++)
+			out_irq->args[i] = be32_to_cpup(imap - newintsize + i);
+		out_irq->args_count = intsize = newintsize;
 		addrsize = newaddrsize;
-		intsize = newintsize;
-		intspec = imap - intsize;
-		addr = intspec - addrsize;
 
 	skiplevel:
 		/* Iterate again with new parent */
@@ -263,7 +262,7 @@ int of_irq_parse_raw(struct device_node *parent, const __be32 *intspec,
 	}
  fail:
 	of_node_put(ipar);
-	of_node_put(old);
+	of_node_put(out_irq->np);
 	of_node_put(newpar);
 
 	return -EINVAL;
@@ -276,15 +275,16 @@ EXPORT_SYMBOL_GPL(of_irq_parse_raw);
  * @index: index of the interrupt to resolve
  * @out_irq: structure of_irq filled by this function
  *
- * This function resolves an interrupt, walking the tree, for a given
- * device-tree node. It's the high level pendant to of_irq_parse_raw().
+ * This function resolves an interrupt for a node by walking the interrupt tree,
+ * finding which interrupt controller node it is attached to, and returning the
+ * interrupt specifier that can be used to retrieve a Linux IRQ number.
  */
 int of_irq_parse_one(struct device_node *device, int index, struct of_phandle_args *out_irq)
 {
 	struct device_node *p;
 	const __be32 *intspec, *tmp, *addr;
 	u32 intsize, intlen;
-	int res = -EINVAL;
+	int i, res = -EINVAL;
 
 	pr_debug("of_irq_parse_one: dev=%s, index=%d\n", of_node_full_name(device), index);
 
@@ -320,9 +320,15 @@ int of_irq_parse_one(struct device_node *device, int index, struct of_phandle_ar
 	if ((index + 1) * intsize > intlen)
 		goto out;
 
-	/* Get new specifier and map it */
-	res = of_irq_parse_raw(p, intspec + index * intsize, intsize,
-			     addr, out_irq);
+	/* Copy intspec into irq structure */
+	intspec += index * intsize;
+	out_irq->np = p;
+	out_irq->args_count = intsize;
+	for (i = 0; i < intsize; i++)
+		out_irq->args[i] = be32_to_cpup(intspec++);
+
+	/* Check if there are any interrupt-map translations to process */
+	res = of_irq_parse_raw(addr, out_irq);
  out:
 	of_node_put(p);
 	return res;
diff --git a/drivers/of/of_pci_irq.c b/drivers/of/of_pci_irq.c
index ee3293d4b66b..303afebc247a 100644
--- a/drivers/of/of_pci_irq.c
+++ b/drivers/of/of_pci_irq.c
@@ -85,9 +85,12 @@ int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq
 		pdev = ppdev;
 	}
 
+	out_irq->np = ppnode;
+	out_irq->args_count = 1;
+	out_irq->args[0] = lspec;
 	lspec_be = cpu_to_be32(lspec);
 	laddr[0] = cpu_to_be32((pdev->bus->number << 16) | (pdev->devfn << 8));
-	laddr[1]  = laddr[2] = cpu_to_be32(0);
-	return of_irq_parse_raw(ppnode, &lspec_be, 1, laddr, out_irq);
+	laddr[1] = laddr[2] = cpu_to_be32(0);
+	return of_irq_parse_raw(laddr, out_irq);
 }
 EXPORT_SYMBOL_GPL(of_irq_parse_pci);
diff --git a/include/linux/of_irq.h b/include/linux/of_irq.h
index 3bbba8d6adc8..c0d6dfe80895 100644
--- a/include/linux/of_irq.h
+++ b/include/linux/of_irq.h
@@ -31,10 +31,7 @@ static inline int of_irq_parse_oldworld(struct device_node *device, int index,
 }
 #endif /* CONFIG_PPC32 && CONFIG_PPC_PMAC */
 
-
-extern int of_irq_parse_raw(struct device_node *parent, const __be32 *intspec,
-			  u32 ointsize, const __be32 *addr,
-			  struct of_phandle_args *out_irq);
+extern int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq);
 extern int of_irq_parse_one(struct device_node *device, int index,
 			  struct of_phandle_args *out_irq);
 extern unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data);
-- 
cgit 


From 624cfca534f9b1ffb1326617b4e973a3d5ecff4a Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Fri, 11 Oct 2013 22:05:10 +0100
Subject: of: Add helper for printing an of_phandle_args structure

It is sometimes useful for debug to get the contents of an
of_phandle_args structure out into the kernel log.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
---
 drivers/of/base.c  | 9 +++++++++
 drivers/of/irq.c   | 6 +++---
 include/linux/of.h | 1 +
 3 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/of/base.c b/drivers/of/base.c
index 3ae106d89791..021db96245e7 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -1185,6 +1185,15 @@ int of_property_count_strings(struct device_node *np, const char *propname)
 }
 EXPORT_SYMBOL_GPL(of_property_count_strings);
 
+void of_print_phandle_args(const char *msg, const struct of_phandle_args *args)
+{
+	int i;
+	printk("%s %s", msg, of_node_full_name(args->np));
+	for (i = 0; i < args->args_count; i++)
+		printk(i ? ",%08x" : ":%08x", args->args[i]);
+	printk("\n");
+}
+
 static int __of_parse_phandle_with_args(const struct device_node *np,
 					const char *list_name,
 					const char *cells_name,
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 0ed5ed4a5f9b..ddea945ec29e 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -101,9 +101,9 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
 	u32 intsize = 1, addrsize, newintsize = 0, newaddrsize = 0;
 	int imaplen, match, i;
 
-	pr_debug("of_irq_parse_raw: par=%s,intspec=[0x%08x 0x%08x...],ointsize=%d\n",
-		 of_node_full_name(out_irq->np), out_irq->args[0], out_irq->args[1],
-		 out_irq->args_count);
+#ifdef DEBUG
+	of_print_phandle_args("of_irq_parse_raw: ", out_irq);
+#endif
 
 	ipar = of_node_get(out_irq->np);
 
diff --git a/include/linux/of.h b/include/linux/of.h
index f95aee391e30..374e03536135 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -275,6 +275,7 @@ extern int of_n_size_cells(struct device_node *np);
 extern const struct of_device_id *of_match_node(
 	const struct of_device_id *matches, const struct device_node *node);
 extern int of_modalias_node(struct device_node *node, char *modalias, int len);
+extern void of_print_phandle_args(const char *msg, const struct of_phandle_args *args);
 extern struct device_node *of_parse_phandle(const struct device_node *np,
 					    const char *phandle_name,
 					    int index);
-- 
cgit 


From a9f10ca76d784023fc45f01f025b54e9960f4ec1 Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Fri, 11 Oct 2013 22:04:23 +0100
Subject: of: Add testcases for interrupt parsing

This patch extends the DT selftest code with some test cases for the
interrupt parsing functions.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
---
 arch/arm/boot/dts/testcases/tests-interrupts.dtsi | 41 ++++++++++
 arch/arm/boot/dts/testcases/tests.dtsi            |  1 +
 drivers/of/selftest.c                             | 91 +++++++++++++++++++++--
 3 files changed, 127 insertions(+), 6 deletions(-)
 create mode 100644 arch/arm/boot/dts/testcases/tests-interrupts.dtsi

diff --git a/arch/arm/boot/dts/testcases/tests-interrupts.dtsi b/arch/arm/boot/dts/testcases/tests-interrupts.dtsi
new file mode 100644
index 000000000000..6ecda716e9d4
--- /dev/null
+++ b/arch/arm/boot/dts/testcases/tests-interrupts.dtsi
@@ -0,0 +1,41 @@
+
+/ {
+	testcase-data {
+		interrupts {
+			#address-cells = <0>;
+			test_intc0: intc0 {
+				interrupt-controller;
+				#interrupt-cells = <1>;
+			};
+
+			test_intc1: intc1 {
+				interrupt-controller;
+				#interrupt-cells = <3>;
+			};
+
+			test_intc2: intc2 {
+				interrupt-controller;
+				#interrupt-cells = <2>;
+			};
+
+			test_intmap0: intmap0 {
+				#interrupt-cells = <1>;
+				#address-cells = <0>;
+				interrupt-map = <1 &test_intc0 9>,
+						<2 &test_intc1 10 11 12>,
+						<3 &test_intc2 13 14>,
+						<4 &test_intc2 15 16>;
+			};
+
+			interrupts0 {
+				interrupt-parent = <&test_intc0>;
+				interrupts = <1>, <2>, <3>, <4>;
+			};
+
+			interrupts1 {
+				interrupt-parent = <&test_intmap0>;
+				interrupts = <1>, <2>, <3>, <4>;
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/testcases/tests.dtsi b/arch/arm/boot/dts/testcases/tests.dtsi
index a7c5067622e8..3f123ecc9dd7 100644
--- a/arch/arm/boot/dts/testcases/tests.dtsi
+++ b/arch/arm/boot/dts/testcases/tests.dtsi
@@ -1 +1,2 @@
 /include/ "tests-phandle.dtsi"
+/include/ "tests-interrupts.dtsi"
diff --git a/drivers/of/selftest.c b/drivers/of/selftest.c
index 0eb5c38b4e07..9c80f0b7556b 100644
--- a/drivers/of/selftest.c
+++ b/drivers/of/selftest.c
@@ -9,18 +9,24 @@
 #include <linux/errno.h>
 #include <linux/module.h>
 #include <linux/of.h>
+#include <linux/of_irq.h>
 #include <linux/list.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
 #include <linux/device.h>
 
-static bool selftest_passed = true;
+static struct selftest_results {
+	int passed;
+	int failed;
+} selftest_results;
+
 #define selftest(result, fmt, ...) { \
 	if (!(result)) { \
-		pr_err("FAIL %s:%i " fmt, __FILE__, __LINE__, ##__VA_ARGS__); \
-		selftest_passed = false; \
+		selftest_results.failed++; \
+		pr_err("FAIL %s():%i " fmt, __func__, __LINE__, ##__VA_ARGS__); \
 	} else { \
-		pr_info("pass %s:%i\n", __FILE__, __LINE__); \
+		selftest_results.passed++; \
+		pr_debug("pass %s():%i\n", __func__, __LINE__); \
 	} \
 }
 
@@ -131,7 +137,6 @@ static void __init of_selftest_property_match_string(void)
 	struct device_node *np;
 	int rc;
 
-	pr_info("start\n");
 	np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a");
 	if (!np) {
 		pr_err("No testcase data in device tree\n");
@@ -154,6 +159,78 @@ static void __init of_selftest_property_match_string(void)
 	selftest(rc == -EILSEQ, "unterminated string; rc=%i", rc);
 }
 
+static void __init of_selftest_parse_interrupts(void)
+{
+	struct device_node *np;
+	struct of_phandle_args args;
+	int i, rc;
+
+	np = of_find_node_by_path("/testcase-data/interrupts/interrupts0");
+	if (!np) {
+		pr_err("missing testcase data\n");
+		return;
+	}
+
+	for (i = 0; i < 4; i++) {
+		bool passed = true;
+		args.args_count = 0;
+		rc = of_irq_parse_one(np, i, &args);
+
+		passed &= !rc;
+		passed &= (args.args_count == 1);
+		passed &= (args.args[0] == (i + 1));
+
+		selftest(passed, "index %i - data error on node %s rc=%i\n",
+			 i, args.np->full_name, rc);
+	}
+	of_node_put(np);
+
+	np = of_find_node_by_path("/testcase-data/interrupts/interrupts1");
+	if (!np) {
+		pr_err("missing testcase data\n");
+		return;
+	}
+
+	for (i = 0; i < 4; i++) {
+		bool passed = true;
+		args.args_count = 0;
+		rc = of_irq_parse_one(np, i, &args);
+
+		/* Test the values from tests-phandle.dtsi */
+		switch (i) {
+		case 0:
+			passed &= !rc;
+			passed &= (args.args_count == 1);
+			passed &= (args.args[0] == 9);
+			break;
+		case 1:
+			passed &= !rc;
+			passed &= (args.args_count == 3);
+			passed &= (args.args[0] == 10);
+			passed &= (args.args[1] == 11);
+			passed &= (args.args[2] == 12);
+			break;
+		case 2:
+			passed &= !rc;
+			passed &= (args.args_count == 2);
+			passed &= (args.args[0] == 13);
+			passed &= (args.args[1] == 14);
+			break;
+		case 3:
+			passed &= !rc;
+			passed &= (args.args_count == 2);
+			passed &= (args.args[0] == 15);
+			passed &= (args.args[1] == 16);
+			break;
+		default:
+			passed = false;
+		}
+		selftest(passed, "index %i - data error on node %s rc=%i\n",
+			 i, args.np->full_name, rc);
+	}
+	of_node_put(np);
+}
+
 static int __init of_selftest(void)
 {
 	struct device_node *np;
@@ -168,7 +245,9 @@ static int __init of_selftest(void)
 	pr_info("start of selftest - you will see error messages\n");
 	of_selftest_parse_phandle_with_args();
 	of_selftest_property_match_string();
-	pr_info("end of selftest - %s\n", selftest_passed ? "PASS" : "FAIL");
+	of_selftest_parse_interrupts();
+	pr_info("end of selftest - %i passed, %i failed\n",
+		selftest_results.passed, selftest_results.failed);
 	return 0;
 }
 late_initcall(of_selftest);
-- 
cgit 


From 3da5278727a895d49a601f67fd49dffa0b80f9a5 Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Wed, 18 Sep 2013 15:24:43 +0200
Subject: of/irq: Rework of_irq_count()

The of_irq_to_resource() helper that is used to implement of_irq_count()
tries to resolve interrupts and in fact creates a mapping for resolved
interrupts. That's pretty heavy lifting for something that claims to
just return the number of interrupts requested by a given device node.

Instead, use the more lightweight of_irq_map_one(), which, despite the
name, doesn't create an actual mapping. Perhaps a better name would be
of_irq_translate_one().

Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
[grant.likely: fixup s/of_irq_map_one/of_irq_parse_one/]
Signed-off-by: Grant Likely <grant.likely@linaro.org>
---
 drivers/of/irq.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index ddea945ec29e..7c4ff122785f 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -373,9 +373,10 @@ EXPORT_SYMBOL_GPL(of_irq_to_resource);
  */
 int of_irq_count(struct device_node *dev)
 {
+	struct of_phandle_args irq;
 	int nr = 0;
 
-	while (of_irq_to_resource(dev, nr, NULL))
+	while (of_irq_parse_one(dev, nr, &irq) == 0)
 		nr++;
 
 	return nr;
-- 
cgit 


From f7578496a671a96e501f16a5104893275e32c33a Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Wed, 18 Sep 2013 15:24:44 +0200
Subject: of/irq: Use irq_of_parse_and_map()

Replace some instances of of_irq_map_one()/irq_create_of_mapping() and
of_irq_to_resource() by the simpler equivalent irq_of_parse_and_map().

Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
[grant.likely: resolved conflicts with core code renames]
Signed-off-by: Grant Likely <grant.likely@linaro.org>
---
 arch/arm/mach-u300/timer.c                       |  9 ++++-----
 arch/powerpc/platforms/cell/celleb_scc_pciex.c   |  5 ++---
 arch/powerpc/platforms/cell/spider-pic.c         |  6 +++---
 arch/powerpc/sysdev/fsl_gtm.c                    |  9 ++++-----
 arch/powerpc/sysdev/mpic_msgr.c                  |  6 ++----
 drivers/crypto/caam/ctrl.c                       |  2 +-
 drivers/crypto/caam/jr.c                         |  2 +-
 drivers/crypto/omap-sham.c                       |  2 +-
 drivers/i2c/busses/i2c-cpm.c                     |  2 +-
 drivers/input/serio/xilinx_ps2.c                 |  7 ++++---
 drivers/net/ethernet/arc/emac_main.c             | 10 +++++-----
 drivers/net/ethernet/freescale/fs_enet/mac-fcc.c |  2 +-
 drivers/net/ethernet/freescale/fs_enet/mac-fec.c |  2 +-
 drivers/net/ethernet/freescale/fs_enet/mac-scc.c |  2 +-
 drivers/spi/spi-fsl-espi.c                       |  6 +++---
 drivers/tty/serial/cpm_uart/cpm_uart_core.c      |  2 +-
 16 files changed, 35 insertions(+), 39 deletions(-)

diff --git a/arch/arm/mach-u300/timer.c b/arch/arm/mach-u300/timer.c
index b5db207dfd1e..9a5f9fb352ce 100644
--- a/arch/arm/mach-u300/timer.c
+++ b/arch/arm/mach-u300/timer.c
@@ -358,8 +358,7 @@ static struct delay_timer u300_delay_timer;
  */
 static void __init u300_timer_init_of(struct device_node *np)
 {
-	struct resource irq_res;
-	int irq;
+	unsigned int irq;
 	struct clk *clk;
 	unsigned long rate;
 
@@ -368,11 +367,11 @@ static void __init u300_timer_init_of(struct device_node *np)
 		panic("could not ioremap system timer\n");
 
 	/* Get the IRQ for the GP1 timer */
-	irq = of_irq_to_resource(np, 2, &irq_res);
-	if (irq <= 0)
+	irq = irq_of_parse_and_map(np, 2);
+	if (!irq)
 		panic("no IRQ for system timer\n");
 
-	pr_info("U300 GP1 timer @ base: %p, IRQ: %d\n", u300_timer_base, irq);
+	pr_info("U300 GP1 timer @ base: %p, IRQ: %u\n", u300_timer_base, irq);
 
 	/* Clock the interrupt controller */
 	clk = of_clk_get(np, 0);
diff --git a/arch/powerpc/platforms/cell/celleb_scc_pciex.c b/arch/powerpc/platforms/cell/celleb_scc_pciex.c
index b3ea96db5b06..4278acfa2ede 100644
--- a/arch/powerpc/platforms/cell/celleb_scc_pciex.c
+++ b/arch/powerpc/platforms/cell/celleb_scc_pciex.c
@@ -486,7 +486,6 @@ static __init int celleb_setup_pciex(struct device_node *node,
 				     struct pci_controller *phb)
 {
 	struct resource	r;
-	struct of_phandle_args oirq;
 	int virq;
 
 	/* SMMIO registers; used inside this file */
@@ -507,11 +506,11 @@ static __init int celleb_setup_pciex(struct device_node *node,
 	phb->ops = &scc_pciex_pci_ops;
 
 	/* internal interrupt handler */
-	if (of_irq_parse_one(node, 1, &oirq)) {
+	virq = irq_of_parse_and_map(node, 1);
+	if (!virq) {
 		pr_err("PCIEXC:Failed to map irq\n");
 		goto error;
 	}
-	virq = irq_create_of_mapping(&oirq);
 	if (request_irq(virq, pciex_handle_internal_irq,
 			0, "pciex", (void *)phb)) {
 		pr_err("PCIEXC:Failed to request irq\n");
diff --git a/arch/powerpc/platforms/cell/spider-pic.c b/arch/powerpc/platforms/cell/spider-pic.c
index d20680446174..1f72f4ab6353 100644
--- a/arch/powerpc/platforms/cell/spider-pic.c
+++ b/arch/powerpc/platforms/cell/spider-pic.c
@@ -235,9 +235,9 @@ static unsigned int __init spider_find_cascade_and_node(struct spider_pic *pic)
 	/* First, we check whether we have a real "interrupts" in the device
 	 * tree in case the device-tree is ever fixed
 	 */
-	struct of_phandle_args oirq;
-	if (of_irq_parse_one(pic->host->of_node, 0, &oirq) == 0)
-		return irq_create_of_mapping(&oirq);
+	virq = irq_of_parse_and_map(pic->host->of_node, 0);
+	if (virq)
+		return virq;
 
 	/* Now do the horrible hacks */
 	tmp = of_get_property(pic->host->of_node, "#interrupt-cells", NULL);
diff --git a/arch/powerpc/sysdev/fsl_gtm.c b/arch/powerpc/sysdev/fsl_gtm.c
index 0eb871cc3437..dd0d5be6cd1f 100644
--- a/arch/powerpc/sysdev/fsl_gtm.c
+++ b/arch/powerpc/sysdev/fsl_gtm.c
@@ -401,16 +401,15 @@ static int __init fsl_gtm_init(void)
 		gtm->clock = *clock;
 
 		for (i = 0; i < ARRAY_SIZE(gtm->timers); i++) {
-			int ret;
-			struct resource irq;
+			unsigned int irq;
 
-			ret = of_irq_to_resource(np, i, &irq);
-			if (ret == NO_IRQ) {
+			irq = irq_of_parse_and_map(np, i);
+			if (irq == NO_IRQ) {
 				pr_err("%s: not enough interrupts specified\n",
 				       np->full_name);
 				goto err;
 			}
-			gtm->timers[i].irq = irq.start;
+			gtm->timers[i].irq = irq;
 			gtm->timers[i].gtm = gtm;
 		}
 
diff --git a/arch/powerpc/sysdev/mpic_msgr.c b/arch/powerpc/sysdev/mpic_msgr.c
index c75325865a85..2c9b52aa266c 100644
--- a/arch/powerpc/sysdev/mpic_msgr.c
+++ b/arch/powerpc/sysdev/mpic_msgr.c
@@ -237,15 +237,13 @@ static int mpic_msgr_probe(struct platform_device *dev)
 		raw_spin_lock_init(&msgr->lock);
 
 		if (receive_mask & (1 << i)) {
-			struct resource irq;
-
-			if (of_irq_to_resource(np, irq_index, &irq) == NO_IRQ) {
+			msgr->irq = irq_of_parse_and_map(np, irq_index);
+			if (msgr->irq == NO_IRQ) {
 				dev_err(&dev->dev,
 						"Missing interrupt specifier");
 				kfree(msgr);
 				return -EFAULT;
 			}
-			msgr->irq = irq.start;
 			irq_index += 1;
 		} else {
 			msgr->irq = NO_IRQ;
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index b010d42a1803..ae6e5542ec46 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -224,7 +224,7 @@ static int caam_probe(struct platform_device *pdev)
 	topregs = (struct caam_full __iomem *)ctrl;
 
 	/* Get the IRQ of the controller (for security violations only) */
-	ctrlpriv->secvio_irq = of_irq_to_resource(nprop, 0, NULL);
+	ctrlpriv->secvio_irq = irq_of_parse_and_map(nprop, 0);
 
 	/*
 	 * Enable DECO watchdogs and, if this is a PHYS_ADDR_T_64BIT kernel,
diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c
index 105ba4da6180..517a16d87e4b 100644
--- a/drivers/crypto/caam/jr.c
+++ b/drivers/crypto/caam/jr.c
@@ -403,7 +403,7 @@ int caam_jr_probe(struct platform_device *pdev, struct device_node *np,
 		dma_set_mask(jrdev, DMA_BIT_MASK(32));
 
 	/* Identify the interrupt */
-	jrpriv->irq = of_irq_to_resource(np, 0, NULL);
+	jrpriv->irq = irq_of_parse_and_map(np, 0);
 
 	/* Now do the platform independent part */
 	error = caam_jr_init(jrdev); /* now turn on hardware */
diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index 8bdde57f6bb1..e28104b4aab0 100644
--- a/drivers/crypto/omap-sham.c
+++ b/drivers/crypto/omap-sham.c
@@ -1818,7 +1818,7 @@ static int omap_sham_get_res_of(struct omap_sham_dev *dd,
 		goto err;
 	}
 
-	dd->irq = of_irq_to_resource(node, 0, NULL);
+	dd->irq = irq_of_parse_and_map(node, 0);
 	if (!dd->irq) {
 		dev_err(dev, "can't translate OF irq value\n");
 		err = -EINVAL;
diff --git a/drivers/i2c/busses/i2c-cpm.c b/drivers/i2c/busses/i2c-cpm.c
index b2b8aa9adc0e..3e5ea2c87a6e 100644
--- a/drivers/i2c/busses/i2c-cpm.c
+++ b/drivers/i2c/busses/i2c-cpm.c
@@ -447,7 +447,7 @@ static int cpm_i2c_setup(struct cpm_i2c *cpm)
 
 	init_waitqueue_head(&cpm->i2c_wait);
 
-	cpm->irq = of_irq_to_resource(ofdev->dev.of_node, 0, NULL);
+	cpm->irq = irq_of_parse_and_map(ofdev->dev.of_node, 0);
 	if (!cpm->irq)
 		return -EINVAL;
 
diff --git a/drivers/input/serio/xilinx_ps2.c b/drivers/input/serio/xilinx_ps2.c
index 4b7662a17ae9..36f7b9533397 100644
--- a/drivers/input/serio/xilinx_ps2.c
+++ b/drivers/input/serio/xilinx_ps2.c
@@ -235,12 +235,12 @@ static void sxps2_close(struct serio *pserio)
  */
 static int xps2_of_probe(struct platform_device *ofdev)
 {
-	struct resource r_irq; /* Interrupt resources */
 	struct resource r_mem; /* IO mem resources */
 	struct xps2data *drvdata;
 	struct serio *serio;
 	struct device *dev = &ofdev->dev;
 	resource_size_t remap_size, phys_addr;
+	unsigned int irq;
 	int error;
 
 	dev_info(dev, "Device Tree Probing \'%s\'\n",
@@ -254,7 +254,8 @@ static int xps2_of_probe(struct platform_device *ofdev)
 	}
 
 	/* Get IRQ for the device */
-	if (!of_irq_to_resource(ofdev->dev.of_node, 0, &r_irq)) {
+	irq = irq_of_parse_and_map(ofdev->dev.of_node, 0);
+	if (!irq) {
 		dev_err(dev, "no IRQ found\n");
 		return -ENODEV;
 	}
@@ -267,7 +268,7 @@ static int xps2_of_probe(struct platform_device *ofdev)
 	}
 
 	spin_lock_init(&drvdata->lock);
-	drvdata->irq = r_irq.start;
+	drvdata->irq = irq;
 	drvdata->serio = serio;
 	drvdata->dev = dev;
 
diff --git a/drivers/net/ethernet/arc/emac_main.c b/drivers/net/ethernet/arc/emac_main.c
index 9e1601487263..d0878526c0c8 100644
--- a/drivers/net/ethernet/arc/emac_main.c
+++ b/drivers/net/ethernet/arc/emac_main.c
@@ -628,12 +628,12 @@ static const struct net_device_ops arc_emac_netdev_ops = {
 
 static int arc_emac_probe(struct platform_device *pdev)
 {
-	struct resource res_regs, res_irq;
+	struct resource res_regs;
 	struct device_node *phy_node;
 	struct arc_emac_priv *priv;
 	struct net_device *ndev;
 	const char *mac_addr;
-	unsigned int id, clock_frequency;
+	unsigned int id, clock_frequency, irq;
 	int err;
 
 	if (!pdev->dev.of_node)
@@ -661,8 +661,8 @@ static int arc_emac_probe(struct platform_device *pdev)
 	}
 
 	/* Get IRQ from device tree */
-	err = of_irq_to_resource(pdev->dev.of_node, 0, &res_irq);
-	if (!err) {
+	irq = irq_of_parse_and_map(pdev->dev.of_node, 0);
+	if (!irq) {
 		dev_err(&pdev->dev, "failed to retrieve <irq> value from device tree\n");
 		return -ENODEV;
 	}
@@ -711,7 +711,7 @@ static int arc_emac_probe(struct platform_device *pdev)
 		goto out;
 	}
 
-	ndev->irq = res_irq.start;
+	ndev->irq = irq;
 	dev_info(&pdev->dev, "IRQ is %d\n", ndev->irq);
 
 	/* Register interrupt handler for device */
diff --git a/drivers/net/ethernet/freescale/fs_enet/mac-fcc.c b/drivers/net/ethernet/freescale/fs_enet/mac-fcc.c
index 7583a9572bcc..10f781d8cb09 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mac-fcc.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mac-fcc.c
@@ -88,7 +88,7 @@ static int do_pd_setup(struct fs_enet_private *fep)
 	struct fs_platform_info *fpi = fep->fpi;
 	int ret = -EINVAL;
 
-	fep->interrupt = of_irq_to_resource(ofdev->dev.of_node, 0, NULL);
+	fep->interrupt = irq_of_parse_and_map(ofdev->dev.of_node, 0);
 	if (fep->interrupt == NO_IRQ)
 		goto out;
 
diff --git a/drivers/net/ethernet/freescale/fs_enet/mac-fec.c b/drivers/net/ethernet/freescale/fs_enet/mac-fec.c
index 9ae6cdbcac2e..53a0c23b4890 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mac-fec.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mac-fec.c
@@ -98,7 +98,7 @@ static int do_pd_setup(struct fs_enet_private *fep)
 {
 	struct platform_device *ofdev = to_platform_device(fep->dev);
 
-	fep->interrupt = of_irq_to_resource(ofdev->dev.of_node, 0, NULL);
+	fep->interrupt = irq_of_parse_and_map(ofdev->dev.of_node, 0);
 	if (fep->interrupt == NO_IRQ)
 		return -EINVAL;
 
diff --git a/drivers/net/ethernet/freescale/fs_enet/mac-scc.c b/drivers/net/ethernet/freescale/fs_enet/mac-scc.c
index 22a02a767069..631f09872fa2 100644
--- a/drivers/net/ethernet/freescale/fs_enet/mac-scc.c
+++ b/drivers/net/ethernet/freescale/fs_enet/mac-scc.c
@@ -98,7 +98,7 @@ static int do_pd_setup(struct fs_enet_private *fep)
 {
 	struct platform_device *ofdev = to_platform_device(fep->dev);
 
-	fep->interrupt = of_irq_to_resource(ofdev->dev.of_node, 0, NULL);
+	fep->interrupt = irq_of_parse_and_map(ofdev->dev.of_node, 0);
 	if (fep->interrupt == NO_IRQ)
 		return -EINVAL;
 
diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c
index b8f1103fe28e..3197d55f30cd 100644
--- a/drivers/spi/spi-fsl-espi.c
+++ b/drivers/spi/spi-fsl-espi.c
@@ -687,7 +687,7 @@ static int of_fsl_espi_probe(struct platform_device *ofdev)
 	struct device_node *np = ofdev->dev.of_node;
 	struct spi_master *master;
 	struct resource mem;
-	struct resource irq;
+	unsigned int irq;
 	int ret = -ENOMEM;
 
 	ret = of_mpc8xxx_spi_probe(ofdev);
@@ -702,13 +702,13 @@ static int of_fsl_espi_probe(struct platform_device *ofdev)
 	if (ret)
 		goto err;
 
-	ret = of_irq_to_resource(np, 0, &irq);
+	irq = irq_of_parse_and_map(np, 0);
 	if (!ret) {
 		ret = -EINVAL;
 		goto err;
 	}
 
-	master = fsl_espi_probe(dev, &mem, irq.start);
+	master = fsl_espi_probe(dev, &mem, irq);
 	if (IS_ERR(master)) {
 		ret = PTR_ERR(master);
 		goto err;
diff --git a/drivers/tty/serial/cpm_uart/cpm_uart_core.c b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
index 1a535f70dc41..6957f445a114 100644
--- a/drivers/tty/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/tty/serial/cpm_uart/cpm_uart_core.c
@@ -1207,7 +1207,7 @@ static int cpm_uart_init_port(struct device_node *np,
 	pinfo->port.fifosize = pinfo->tx_nrfifos * pinfo->tx_fifosize;
 	spin_lock_init(&pinfo->port.lock);
 
-	pinfo->port.irq = of_irq_to_resource(np, 0, NULL);
+	pinfo->port.irq = irq_of_parse_and_map(np, 0);
 	if (pinfo->port.irq == NO_IRQ) {
 		ret = -EINVAL;
 		goto out_pram;
-- 
cgit 


From 16b84e5a505c790538e534ad8dfda9c288691e40 Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Thu, 19 Sep 2013 16:44:55 -0500
Subject: of/irq: Create of_irq_parse_and_map_pci() to consolidate arch code.

Several architectures open code effectively the same code block for
finding and mapping PCI irqs. This patch consolidates it down to a
single function.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Michal Simek <monstr@monstr.eu>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/arm/mach-integrator/pci_v3.c | 17 +----------------
 arch/mips/pci/fixup-lantiq.c      | 12 +-----------
 arch/mips/pci/pci-rt3883.c        | 22 +---------------------
 arch/x86/kernel/devicetree.c      |  7 +------
 drivers/of/of_pci_irq.c           | 25 +++++++++++++++++++++++++
 drivers/pci/host/pci-mvebu.c      | 14 +-------------
 include/linux/of_pci.h            |  1 +
 7 files changed, 31 insertions(+), 67 deletions(-)

diff --git a/arch/arm/mach-integrator/pci_v3.c b/arch/arm/mach-integrator/pci_v3.c
index bb3aeb31a54e..a87e510fe0c4 100644
--- a/arch/arm/mach-integrator/pci_v3.c
+++ b/arch/arm/mach-integrator/pci_v3.c
@@ -835,21 +835,6 @@ static struct hw_pci pci_v3 __initdata = {
 
 #ifdef CONFIG_OF
 
-static int __init pci_v3_map_irq_dt(const struct pci_dev *dev, u8 slot, u8 pin)
-{
-	struct of_phandle_args oirq;
-	int ret;
-
-	ret = of_irq_parse_pci(dev, &oirq);
-	if (ret) {
-		dev_err(&dev->dev, "of_irq_parse_pci() %d\n", ret);
-		/* Proper return code 0 == NO_IRQ */
-		return 0;
-	}
-
-	return irq_create_of_mapping(&oirq);
-}
-
 static int __init pci_v3_dtprobe(struct platform_device *pdev,
 				struct device_node *np)
 {
@@ -918,7 +903,7 @@ static int __init pci_v3_dtprobe(struct platform_device *pdev,
 		return -EINVAL;
 	}
 
-	pci_v3.map_irq = pci_v3_map_irq_dt;
+	pci_v3.map_irq = of_irq_parse_and_map_pci;
 	pci_common_init_dev(&pdev->dev, &pci_v3);
 
 	return 0;
diff --git a/arch/mips/pci/fixup-lantiq.c b/arch/mips/pci/fixup-lantiq.c
index aef60e75003e..c2ce41ea61d7 100644
--- a/arch/mips/pci/fixup-lantiq.c
+++ b/arch/mips/pci/fixup-lantiq.c
@@ -25,15 +25,5 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
 
 int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	struct of_phandle_args dev_irq;
-	int irq;
-
-	if (of_irq_parse_pci(dev, &dev_irq)) {
-		dev_err(&dev->dev, "trying to map irq for unknown slot:%d pin:%d\n",
-			slot, pin);
-		return 0;
-	}
-	irq = irq_create_of_mapping(&dev_irq);
-	dev_info(&dev->dev, "SLOT:%d PIN:%d IRQ:%d\n", slot, pin, irq);
-	return irq;
+	return of_irq_parse_and_map_pci(dev, slot, pin);
 }
diff --git a/arch/mips/pci/pci-rt3883.c b/arch/mips/pci/pci-rt3883.c
index eadc4310cd36..adeff2bfe4cd 100644
--- a/arch/mips/pci/pci-rt3883.c
+++ b/arch/mips/pci/pci-rt3883.c
@@ -583,27 +583,7 @@ err_put_intc_node:
 
 int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 {
-	struct of_phandle_args dev_irq;
-	int err;
-	int irq;
-
-	err = of_irq_parse_pci(dev, &dev_irq);
-	if (err) {
-		pr_err("pci %s: unable to get irq map, err=%d\n",
-		       pci_name((struct pci_dev *) dev), err);
-		return 0;
-	}
-
-	irq = irq_create_of_mapping(&dev_irq);
-
-	if (irq == 0)
-		pr_crit("pci %s: no irq found for pin %u\n",
-			pci_name((struct pci_dev *) dev), pin);
-	else
-		pr_info("pci %s: using irq %d for pin %u\n",
-			pci_name((struct pci_dev *) dev), irq, pin);
-
-	return irq;
+	return of_irq_parse_and_map_pci(dev, slot, pin);
 }
 
 int pcibios_plat_dev_init(struct pci_dev *dev)
diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c
index d39948f654a0..69c826a3d07e 100644
--- a/arch/x86/kernel/devicetree.c
+++ b/arch/x86/kernel/devicetree.c
@@ -105,7 +105,6 @@ struct device_node *pcibios_get_phb_of_node(struct pci_bus *bus)
 
 static int x86_of_pci_irq_enable(struct pci_dev *dev)
 {
-	struct of_phandle_args oirq;
 	u32 virq;
 	int ret;
 	u8 pin;
@@ -116,11 +115,7 @@ static int x86_of_pci_irq_enable(struct pci_dev *dev)
 	if (!pin)
 		return 0;
 
-	ret = of_irq_parse_pci(dev, &oirq);
-	if (ret)
-		return ret;
-
-	virq = irq_create_of_mapping(&oirq);
+	virq = of_irq_parse_and_map_pci(dev, 0, 0);
 	if (virq == 0)
 		return -EINVAL;
 	dev->irq = virq;
diff --git a/drivers/of/of_pci_irq.c b/drivers/of/of_pci_irq.c
index 303afebc247a..8e92acd8253f 100644
--- a/drivers/of/of_pci_irq.c
+++ b/drivers/of/of_pci_irq.c
@@ -94,3 +94,28 @@ int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq
 	return of_irq_parse_raw(laddr, out_irq);
 }
 EXPORT_SYMBOL_GPL(of_irq_parse_pci);
+
+/**
+ * of_irq_parse_and_map_pci() - Decode a PCI irq from the device tree and map to a virq
+ * @dev: The pci device needing an irq
+ * @slot: PCI slot number; passed when used as map_irq callback. Unused
+ * @pin: PCI irq pin number; passed when used as map_irq callback. Unused
+ *
+ * @slot and @pin are unused, but included in the function so that this
+ * function can be used directly as the map_irq callback to pci_fixup_irqs().
+ */
+int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	struct of_phandle_args oirq;
+	int ret;
+
+	ret = of_irq_parse_pci(dev, &oirq);
+	if (ret) {
+		dev_err(&dev->dev, "of_irq_parse_pci() failed with rc=%d\n", ret);
+		return 0; /* Proper return code 0 == NO_IRQ */
+	}
+
+	return irq_create_of_mapping(&oirq);
+}
+EXPORT_SYMBOL_GPL(of_irq_parse_and_map_pci);
+
diff --git a/drivers/pci/host/pci-mvebu.c b/drivers/pci/host/pci-mvebu.c
index 3a8d01ec50f7..07ddb3a13c6e 100644
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -645,18 +645,6 @@ static int __init mvebu_pcie_setup(int nr, struct pci_sys_data *sys)
 	return 1;
 }
 
-static int __init mvebu_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-{
-	struct of_phandle_args oirq;
-	int ret;
-
-	ret = of_irq_parse_pci(dev, &oirq);
-	if (ret)
-		return ret;
-
-	return irq_create_of_mapping(&oirq);
-}
-
 static struct pci_bus *mvebu_pcie_scan_bus(int nr, struct pci_sys_data *sys)
 {
 	struct mvebu_pcie *pcie = sys_to_pcie(sys);
@@ -705,7 +693,7 @@ static void __init mvebu_pcie_enable(struct mvebu_pcie *pcie)
 	hw.private_data   = (void **)&pcie;
 	hw.setup          = mvebu_pcie_setup;
 	hw.scan           = mvebu_pcie_scan_bus;
-	hw.map_irq        = mvebu_pcie_map_irq;
+	hw.map_irq        = of_irq_parse_and_map_pci;
 	hw.ops            = &mvebu_pcie_ops;
 	hw.align_resource = mvebu_pcie_align_resource;
 
diff --git a/include/linux/of_pci.h b/include/linux/of_pci.h
index f297237349e8..1a1f5ffd5288 100644
--- a/include/linux/of_pci.h
+++ b/include/linux/of_pci.h
@@ -7,6 +7,7 @@
 struct pci_dev;
 struct of_phandle_args;
 int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq);
+int of_irq_parse_and_map_pci(const struct pci_dev *dev, u8 slot, u8 pin);
 
 struct device_node;
 struct device_node *of_pci_find_child_device(struct device_node *parent,
-- 
cgit 


From f27446c3ad5b6d3b5b28ec0176e23d3ceca595d8 Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Thu, 19 Sep 2013 23:34:26 -0500
Subject: microblaze/pci: Drop PowerPC-ism from irq parsing

The Microblaze PCI code copied the PowerPC irq handling, but powerpc
needs to handle broken device trees that are not present on Microblaze.
This patch removes the powerpc special case and replaces it with a
direct of_irq_parse_and_map_pci() call.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Michal Simek <monstr@monstr.eu>
---
 arch/microblaze/include/asm/pci.h |  2 --
 arch/microblaze/pci/pci-common.c  | 71 +--------------------------------------
 2 files changed, 1 insertion(+), 72 deletions(-)

diff --git a/arch/microblaze/include/asm/pci.h b/arch/microblaze/include/asm/pci.h
index d52abb6812fa..935f9bec414a 100644
--- a/arch/microblaze/include/asm/pci.h
+++ b/arch/microblaze/include/asm/pci.h
@@ -127,8 +127,6 @@ extern void of_scan_pci_bridge(struct device_node *node,
 extern void of_scan_bus(struct device_node *node, struct pci_bus *bus);
 extern void of_rescan_bus(struct device_node *node, struct pci_bus *bus);
 
-extern int pci_read_irq_line(struct pci_dev *dev);
-
 extern int pci_bus_find_capability(struct pci_bus *bus,
 						unsigned int devfn, int cap);
 
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index 60b386c72c57..5060fc554aab 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -192,75 +192,6 @@ void pcibios_set_master(struct pci_dev *dev)
 	/* No special bus mastering setup handling */
 }
 
-/*
- * Reads the interrupt pin to determine if interrupt is use by card.
- * If the interrupt is used, then gets the interrupt line from the
- * openfirmware and sets it in the pci_dev and pci_config line.
- */
-int pci_read_irq_line(struct pci_dev *pci_dev)
-{
-	struct of_phandle_args oirq;
-	unsigned int virq;
-
-	/* The current device-tree that iSeries generates from the HV
-	 * PCI informations doesn't contain proper interrupt routing,
-	 * and all the fallback would do is print out crap, so we
-	 * don't attempt to resolve the interrupts here at all, some
-	 * iSeries specific fixup does it.
-	 *
-	 * In the long run, we will hopefully fix the generated device-tree
-	 * instead.
-	 */
-	pr_debug("PCI: Try to map irq for %s...\n", pci_name(pci_dev));
-
-#ifdef DEBUG
-	memset(&oirq, 0xff, sizeof(oirq));
-#endif
-	/* Try to get a mapping from the device-tree */
-	if (of_irq_parse_pci(pci_dev, &oirq)) {
-		u8 line, pin;
-
-		/* If that fails, lets fallback to what is in the config
-		 * space and map that through the default controller. We
-		 * also set the type to level low since that's what PCI
-		 * interrupts are. If your platform does differently, then
-		 * either provide a proper interrupt tree or don't use this
-		 * function.
-		 */
-		if (pci_read_config_byte(pci_dev, PCI_INTERRUPT_PIN, &pin))
-			return -1;
-		if (pin == 0)
-			return -1;
-		if (pci_read_config_byte(pci_dev, PCI_INTERRUPT_LINE, &line) ||
-		    line == 0xff || line == 0) {
-			return -1;
-		}
-		pr_debug(" No map ! Using line %d (pin %d) from PCI config\n",
-			 line, pin);
-
-		virq = irq_create_mapping(NULL, line);
-		if (virq)
-			irq_set_irq_type(virq, IRQ_TYPE_LEVEL_LOW);
-	} else {
-		pr_debug(" Got one, spec %d cells (0x%08x 0x%08x...) on %s\n",
-			 oirq.args_count, oirq.args[0], oirq.args[1],
-			 of_node_full_name(oirq.np));
-
-		virq = irq_create_of_mapping(&oirq);
-	}
-	if (!virq) {
-		pr_debug(" Failed to map !\n");
-		return -1;
-	}
-
-	pr_debug(" Mapped to linux irq %d\n", virq);
-
-	pci_dev->irq = virq;
-
-	return 0;
-}
-EXPORT_SYMBOL(pci_read_irq_line);
-
 /*
  * Platform support for /proc/bus/pci/X/Y mmap()s,
  * modelled on the sparc64 implementation by Dave Miller.
@@ -959,7 +890,7 @@ void pcibios_setup_bus_devices(struct pci_bus *bus)
 		dev->dev.archdata.dma_data = (void *)PCI_DRAM_OFFSET;
 
 		/* Read default IRQs and fixup if necessary */
-		pci_read_irq_line(dev);
+		dev->irq = of_irq_parse_and_map_pci(dev, 0, 0);
 	}
 }
 
-- 
cgit 


From 73ba353471e0b692f398f3d63018b7f46ccf1d3e Mon Sep 17 00:00:00 2001
From: Serge Hallyn <serge.hallyn@ubuntu.com>
Date: Wed, 23 Oct 2013 01:34:00 +0200
Subject: device_cgroup: remove can_attach

It is really only wanting to duplicate a check which is already done by the
cgroup subsystem.

With this patch, user jdoe still cannot move pid 1 into a devices cgroup
he owns, but now he can move his own other tasks into devices cgroups.

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Aristeu Rozanski <aris@redhat.com>
---
 security/device_cgroup.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index c123628d3f84..7c2a0a71049e 100644
--- a/security/device_cgroup.c
+++ b/security/device_cgroup.c
@@ -63,16 +63,6 @@ static inline struct dev_cgroup *task_devcgroup(struct task_struct *task)
 
 struct cgroup_subsys devices_subsys;
 
-static int devcgroup_can_attach(struct cgroup_subsys_state *new_css,
-				struct cgroup_taskset *set)
-{
-	struct task_struct *task = cgroup_taskset_first(set);
-
-	if (current != task && !capable(CAP_SYS_ADMIN))
-		return -EPERM;
-	return 0;
-}
-
 /*
  * called under devcgroup_mutex
  */
@@ -697,7 +687,6 @@ static struct cftype dev_cgroup_files[] = {
 
 struct cgroup_subsys devices_subsys = {
 	.name = "devices",
-	.can_attach = devcgroup_can_attach,
 	.css_alloc = devcgroup_css_alloc,
 	.css_free = devcgroup_css_free,
 	.css_online = devcgroup_online,
-- 
cgit 


From 3de9e65f011b95235a789b12abc4730570cdb737 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 13 Sep 2013 20:44:20 +0000
Subject: igbvf: integer wrapping bug setting the mtu

If new_mtu is very large then "new_mtu + ETH_HLEN + ETH_FCS_LEN" can
wrap and the check on the next line can underflow. This is one of those
bugs which can be triggered by the user if you have namespaces
configured.

Also since this is something the user can trigger then we don't want to
have dev_err() message.

This is a static checker fix and I'm not sure what the impact is.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Tested-by: Sibai Li Sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/igbvf/netdev.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c
index 93eb7ee06d3e..f48ae71f0d47 100644
--- a/drivers/net/ethernet/intel/igbvf/netdev.c
+++ b/drivers/net/ethernet/intel/igbvf/netdev.c
@@ -2343,10 +2343,9 @@ static int igbvf_change_mtu(struct net_device *netdev, int new_mtu)
 	struct igbvf_adapter *adapter = netdev_priv(netdev);
 	int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN;
 
-	if ((new_mtu < 68) || (max_frame > MAX_JUMBO_FRAME_SIZE)) {
-		dev_err(&adapter->pdev->dev, "Invalid MTU setting\n");
+	if (new_mtu < 68 || new_mtu > INT_MAX - ETH_HLEN - ETH_FCS_LEN ||
+	    max_frame > MAX_JUMBO_FRAME_SIZE)
 		return -EINVAL;
-	}
 
 #define MAX_STD_JUMBO_FRAME_SIZE 9234
 	if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) {
-- 
cgit 


From de524681f88ff4ed293aa239f83c8cb04d59b47d Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Tue, 24 Sep 2013 05:18:45 +0000
Subject: igbvf: add missing iounmap() on error in igbvf_probe()

Add the missing iounmap() before return from igbvf_probe()
in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Tested-by: Sibai Li <Sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/igbvf/netdev.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c
index f48ae71f0d47..9fadbb28cf08 100644
--- a/drivers/net/ethernet/intel/igbvf/netdev.c
+++ b/drivers/net/ethernet/intel/igbvf/netdev.c
@@ -2698,7 +2698,7 @@ static int igbvf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (ei->get_variants) {
 		err = ei->get_variants(adapter);
 		if (err)
-			goto err_ioremap;
+			goto err_get_variants;
 	}
 
 	/* setup adapter struct */
@@ -2795,6 +2795,7 @@ err_hw_init:
 	kfree(adapter->rx_ring);
 err_sw_init:
 	igbvf_reset_interrupt_capability(adapter);
+err_get_variants:
 	iounmap(adapter->hw.hw_addr);
 err_ioremap:
 	free_netdev(netdev);
-- 
cgit 


From 718bd4409e37cd74fd9a65b556999155120e6044 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Tue, 24 Sep 2013 05:17:31 +0000
Subject: i40e: remove unused including <linux/version.h>

Remove including <linux/version.h> that don't need it.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index 49572dcdba87..1ca9834cdfda 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -46,7 +46,6 @@
 #include <linux/sctp.h>
 #include <linux/pkt_sched.h>
 #include <linux/ipv6.h>
-#include <linux/version.h>
 #include <net/checksum.h>
 #include <net/ip6_checksum.h>
 #include <linux/ethtool.h>
-- 
cgit 


From 154bab12e1db824ad12ffd6df2d213dfb3d09878 Mon Sep 17 00:00:00 2001
From: Denis Carikli <denis@eukrea.com>
Date: Thu, 24 Oct 2013 14:13:48 +0200
Subject: ASoC: eukrea-tlv320: Use dev_err instead of pr_err.

It also contains a minor style cleanup.

Signed-off-by: Denis Carikli <denis@eukrea.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/eukrea-tlv320.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/sound/soc/fsl/eukrea-tlv320.c b/sound/soc/fsl/eukrea-tlv320.c
index 9a4a0ca2c1de..5983740be123 100644
--- a/sound/soc/fsl/eukrea-tlv320.c
+++ b/sound/soc/fsl/eukrea-tlv320.c
@@ -42,7 +42,8 @@ static int eukrea_tlv320_hw_params(struct snd_pcm_substream *substream,
 				  SND_SOC_DAIFMT_NB_NF |
 				  SND_SOC_DAIFMT_CBM_CFM);
 	if (ret) {
-		pr_err("%s: failed set cpu dai format\n", __func__);
+		dev_err(cpu_dai->dev,
+			"Failed to set the cpu dai format.\n");
 		return ret;
 	}
 
@@ -50,14 +51,16 @@ static int eukrea_tlv320_hw_params(struct snd_pcm_substream *substream,
 				  SND_SOC_DAIFMT_NB_NF |
 				  SND_SOC_DAIFMT_CBM_CFM);
 	if (ret) {
-		pr_err("%s: failed set codec dai format\n", __func__);
+		dev_err(cpu_dai->dev,
+			"Failed to set the codec format.\n");
 		return ret;
 	}
 
 	ret = snd_soc_dai_set_sysclk(codec_dai, 0,
 				     CODEC_CLOCK, SND_SOC_CLOCK_OUT);
 	if (ret) {
-		pr_err("%s: failed setting codec sysclk\n", __func__);
+		dev_err(cpu_dai->dev,
+			"Failed to set the codec sysclk.\n");
 		return ret;
 	}
 	snd_soc_dai_set_tdm_slot(cpu_dai, 0xffffffc, 0xffffffc, 2, 0);
@@ -65,7 +68,8 @@ static int eukrea_tlv320_hw_params(struct snd_pcm_substream *substream,
 	ret = snd_soc_dai_set_sysclk(cpu_dai, IMX_SSP_SYS_CLK, 0,
 				SND_SOC_CLOCK_IN);
 	if (ret) {
-		pr_err("can't set CPU system clock IMX_SSP_SYS_CLK\n");
+		dev_err(cpu_dai->dev,
+			"Can't set the IMX_SSP_SYS_CLK CPU system clock.\n");
 		return ret;
 	}
 
@@ -155,7 +159,8 @@ static struct platform_driver eukrea_tlv320_driver = {
 		.owner = THIS_MODULE,
 	},
 	.probe = eukrea_tlv320_probe,
-	.remove = eukrea_tlv320_remove,};
+	.remove = eukrea_tlv320_remove,
+};
 
 module_platform_driver(eukrea_tlv320_driver);
 
-- 
cgit 


From a5606f85611267047206d8ba055bc0e4ba166ad3 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 24 Oct 2013 14:25:32 +0200
Subject: ALSA: Add ifdef CONFIG_GENERIC_ALLOCATOR for SNDRV_DMA_TYPE_IRAM code

It turned out that we can't use gen_pool_*() functions on archs
without CONFIG_GENERIC_ALLOCATOR (resulting in missing symbols), since
linux/genalloc.h doesn't provide dummy functions for all.  We'd be
able to fix linux/genalloc.h size, but I take an easier path for
now...

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/memalloc.h | 4 ++++
 sound/core/memalloc.c    | 4 ++++
 sound/core/pcm_native.c  | 2 ++
 3 files changed, 10 insertions(+)

diff --git a/include/sound/memalloc.h b/include/sound/memalloc.h
index 510aec437f72..af9983970417 100644
--- a/include/sound/memalloc.h
+++ b/include/sound/memalloc.h
@@ -52,7 +52,11 @@ struct snd_dma_device {
 #else
 #define SNDRV_DMA_TYPE_DEV_SG	SNDRV_DMA_TYPE_DEV /* no SG-buf support */
 #endif
+#ifdef CONFIG_GENERIC_ALLOCATOR
 #define SNDRV_DMA_TYPE_DEV_IRAM		4	/* generic device iram-buffer */
+#else
+#define SNDRV_DMA_TYPE_DEV_IRAM	SNDRV_DMA_TYPE_DEV
+#endif
 
 /*
  * info for buffer allocation
diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c
index 18c1d4759ccb..51a79218815b 100644
--- a/sound/core/memalloc.c
+++ b/sound/core/memalloc.c
@@ -238,6 +238,7 @@ int snd_dma_alloc_pages(int type, struct device *device, size_t size,
 		dmab->addr = 0;
 		break;
 #ifdef CONFIG_HAS_DMA
+#ifdef CONFIG_GENERIC_ALLOCATOR
 	case SNDRV_DMA_TYPE_DEV_IRAM:
 		snd_malloc_dev_iram(dmab, size);
 		if (dmab->area)
@@ -246,6 +247,7 @@ int snd_dma_alloc_pages(int type, struct device *device, size_t size,
 		 * so if we fail to malloc, try to fetch memory traditionally.
 		 */
 		dmab->dev.type = SNDRV_DMA_TYPE_DEV;
+#endif /* CONFIG_GENERIC_ALLOCATOR */
 	case SNDRV_DMA_TYPE_DEV:
 		dmab->area = snd_malloc_dev_pages(device, size, &dmab->addr);
 		break;
@@ -318,9 +320,11 @@ void snd_dma_free_pages(struct snd_dma_buffer *dmab)
 		snd_free_pages(dmab->area, dmab->bytes);
 		break;
 #ifdef CONFIG_HAS_DMA
+#ifdef CONFIG_GENERIC_ALLOCATOR
 	case SNDRV_DMA_TYPE_DEV_IRAM:
 		snd_free_dev_iram(dmab);
 		break;
+#endif /* CONFIG_GENERIC_ALLOCATOR */
 	case SNDRV_DMA_TYPE_DEV:
 		snd_free_dev_pages(dmab->dev.dev, dmab->bytes, dmab->area, dmab->addr);
 		break;
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 513f0954d92e..b71be579c6ec 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -3199,12 +3199,14 @@ int snd_pcm_lib_default_mmap(struct snd_pcm_substream *substream,
 			     struct vm_area_struct *area)
 {
 	area->vm_flags |= VM_DONTEXPAND | VM_DONTDUMP;
+#ifdef CONFIG_GENERIC_ALLOCATOR
 	if (substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV_IRAM) {
 		area->vm_page_prot = pgprot_writecombine(area->vm_page_prot);
 		return remap_pfn_range(area, area->vm_start,
 				substream->dma_buffer.addr >> PAGE_SHIFT,
 				area->vm_end - area->vm_start, area->vm_page_prot);
 	}
+#endif /* CONFIG_GENERIC_ALLOCATOR */
 #ifdef ARCH_HAS_DMA_MMAP_COHERENT
 	if (!substream->ops->page &&
 	    substream->dma_buffer.dev.type == SNDRV_DMA_TYPE_DEV)
-- 
cgit 


From d1c17d806b6a52ff020322bec457717a91ea50a9 Mon Sep 17 00:00:00 2001
From: Carolyn Wyborny <carolyn.wyborny@intel.com>
Date: Fri, 16 Aug 2013 00:39:10 +0000
Subject: igb: Fix master/slave mode for all m88 i354 PHY's

This patch calls code to set the master/slave mode for all m88 gen 2
PHY's. This patch also removes the call to this function for I210 devices
only from the function that is not called by I210 devices.

Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Jeff Pieper  <jeffrey.e.pieper@gmail.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/igb/e1000_phy.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/intel/igb/e1000_phy.c b/drivers/net/ethernet/intel/igb/e1000_phy.c
index e7266759a10b..c4c4fe332c7e 100644
--- a/drivers/net/ethernet/intel/igb/e1000_phy.c
+++ b/drivers/net/ethernet/intel/igb/e1000_phy.c
@@ -708,11 +708,6 @@ s32 igb_copper_link_setup_m88(struct e1000_hw *hw)
 		hw_dbg("Error committing the PHY changes\n");
 		goto out;
 	}
-	if (phy->type == e1000_phy_i210) {
-		ret_val = igb_set_master_slave_mode(hw);
-		if (ret_val)
-			return ret_val;
-	}
 
 out:
 	return ret_val;
@@ -806,6 +801,9 @@ s32 igb_copper_link_setup_m88_gen2(struct e1000_hw *hw)
 		hw_dbg("Error committing the PHY changes\n");
 		return ret_val;
 	}
+	ret_val = igb_set_master_slave_mode(hw);
+	if (ret_val)
+		return ret_val;
 
 	return 0;
 }
-- 
cgit 


From 917f4b5cba78980a527098a910d94139d3e82c8d Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Thu, 24 Oct 2013 16:37:31 +0530
Subject: ALSA: compress: fix drain calls blocking other compress functions

The drain and drain_notify callback were blocked by low level driver untill the
draining was complete. Due to this being invoked with big fat mutex held, others
ops like reading timestamp, calling pause, drop were blocked.

So to fix this we add a new snd_compr_drain_notify() API. This would be required
to be invoked by low level driver when drain or partial drain has been completed
by the DSP. Thus we make the drain and partial_drain callback as non blocking
and driver returns immediately after notifying DSP.
The waiting is done while relasing the lock so that other ops can go ahead.

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
CC: stable@vger.kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/compress_driver.h | 12 ++++++++++++
 sound/core/compress_offload.c   | 41 ++++++++++++++++++++++++++++++++++++++---
 2 files changed, 50 insertions(+), 3 deletions(-)

diff --git a/include/sound/compress_driver.h b/include/sound/compress_driver.h
index 9031a26249b5..175ab3237b58 100644
--- a/include/sound/compress_driver.h
+++ b/include/sound/compress_driver.h
@@ -48,6 +48,8 @@ struct snd_compr_ops;
  *	the ring buffer
  * @total_bytes_transferred: cumulative bytes transferred by offload DSP
  * @sleep: poll sleep
+ * @wait: drain wait queue
+ * @drain_wake: condition for drain wake
  */
 struct snd_compr_runtime {
 	snd_pcm_state_t state;
@@ -59,6 +61,8 @@ struct snd_compr_runtime {
 	u64 total_bytes_available;
 	u64 total_bytes_transferred;
 	wait_queue_head_t sleep;
+	wait_queue_head_t wait;
+	unsigned int drain_wake;
 	void *private_data;
 };
 
@@ -171,4 +175,12 @@ static inline void snd_compr_fragment_elapsed(struct snd_compr_stream *stream)
 	wake_up(&stream->runtime->sleep);
 }
 
+static inline void snd_compr_drain_notify(struct snd_compr_stream *stream)
+{
+	snd_BUG_ON(!stream);
+
+	stream->runtime->drain_wake = 1;
+	wake_up(&stream->runtime->wait);
+}
+
 #endif
diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
index bea523a5d852..3eb47d0006a7 100644
--- a/sound/core/compress_offload.c
+++ b/sound/core/compress_offload.c
@@ -123,6 +123,7 @@ static int snd_compr_open(struct inode *inode, struct file *f)
 	}
 	runtime->state = SNDRV_PCM_STATE_OPEN;
 	init_waitqueue_head(&runtime->sleep);
+	init_waitqueue_head(&runtime->wait);
 	data->stream.runtime = runtime;
 	f->private_data = (void *)data;
 	mutex_lock(&compr->lock);
@@ -682,12 +683,34 @@ static int snd_compr_stop(struct snd_compr_stream *stream)
 	if (!retval) {
 		stream->runtime->state = SNDRV_PCM_STATE_SETUP;
 		wake_up(&stream->runtime->sleep);
+		snd_compr_drain_notify(stream);
 		stream->runtime->total_bytes_available = 0;
 		stream->runtime->total_bytes_transferred = 0;
 	}
 	return retval;
 }
 
+static int snd_compress_wait_for_drain(struct snd_compr_stream *stream)
+{
+	/*
+	 * We are called with lock held. So drop the lock while we wait for
+	 * drain complete notfication from the driver
+	 *
+	 * It is expected that driver will notify the drain completion and then
+	 * stream will be moved to SETUP state, even if draining resulted in an
+	 * error. We can trigger next track after this.
+	 */
+	stream->runtime->state = SNDRV_PCM_STATE_DRAINING;
+	mutex_unlock(&stream->device->lock);
+
+	wait_event(stream->runtime->wait, stream->runtime->drain_wake);
+
+	wake_up(&stream->runtime->sleep);
+	mutex_lock(&stream->device->lock);
+
+	return 0;
+}
+
 static int snd_compr_drain(struct snd_compr_stream *stream)
 {
 	int retval;
@@ -695,11 +718,17 @@ static int snd_compr_drain(struct snd_compr_stream *stream)
 	if (stream->runtime->state == SNDRV_PCM_STATE_PREPARED ||
 			stream->runtime->state == SNDRV_PCM_STATE_SETUP)
 		return -EPERM;
+
+	stream->runtime->drain_wake = 0;
 	retval = stream->ops->trigger(stream, SND_COMPR_TRIGGER_DRAIN);
-	if (!retval) {
-		stream->runtime->state = SNDRV_PCM_STATE_DRAINING;
+	if (retval) {
+		pr_err("SND_COMPR_TRIGGER_DRAIN failed %d\n", retval);
 		wake_up(&stream->runtime->sleep);
+		return retval;
 	}
+
+	retval = snd_compress_wait_for_drain(stream);
+	stream->runtime->state = SNDRV_PCM_STATE_SETUP;
 	return retval;
 }
 
@@ -735,10 +764,16 @@ static int snd_compr_partial_drain(struct snd_compr_stream *stream)
 	if (stream->next_track == false)
 		return -EPERM;
 
+	stream->runtime->drain_wake = 0;
 	retval = stream->ops->trigger(stream, SND_COMPR_TRIGGER_PARTIAL_DRAIN);
+	if (retval) {
+		pr_err("Partial drain returned failure\n");
+		wake_up(&stream->runtime->sleep);
+		return retval;
+	}
 
 	stream->next_track = false;
-	return retval;
+	return snd_compress_wait_for_drain(stream);
 }
 
 static long snd_compr_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
-- 
cgit 


From a52eaeb1898bc0589888ee62de291aa278379004 Mon Sep 17 00:00:00 2001
From: Tero Kristo <t-kristo@ti.com>
Date: Thu, 24 Oct 2013 15:03:41 +0300
Subject: regmap: debugfs: Fix a boot time crash with early regmap init

If called early enough, regmap_debugfs_init causes a crash, if the
fs subsystem does not have its mount cache created yet. Even if this
would work, the root node for the regmap debugfs is still missing,
thus postpone the regmap_debugfs_init in this case until the root
node is created. A special regmap_debugfs_early list is created for
this purpose which is parsed later in the boot.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/base/regmap/regmap-debugfs.c | 57 ++++++++++++++++++++++++++++++++----
 1 file changed, 52 insertions(+), 5 deletions(-)

diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c
index de11ecaf3833..c5471cd6ebb7 100644
--- a/drivers/base/regmap/regmap-debugfs.c
+++ b/drivers/base/regmap/regmap-debugfs.c
@@ -15,10 +15,19 @@
 #include <linux/debugfs.h>
 #include <linux/uaccess.h>
 #include <linux/device.h>
+#include <linux/list.h>
 
 #include "internal.h"
 
+struct regmap_debugfs_node {
+	struct regmap *map;
+	const char *name;
+	struct list_head link;
+};
+
 static struct dentry *regmap_debugfs_root;
+static LIST_HEAD(regmap_debugfs_early_list);
+static DEFINE_MUTEX(regmap_debugfs_early_lock);
 
 /* Calculate the length of a fixed format  */
 static size_t regmap_calc_reg_len(int max_val, char *buf, size_t buf_size)
@@ -465,6 +474,20 @@ void regmap_debugfs_init(struct regmap *map, const char *name)
 	struct rb_node *next;
 	struct regmap_range_node *range_node;
 
+	/* If we don't have the debugfs root yet, postpone init */
+	if (!regmap_debugfs_root) {
+		struct regmap_debugfs_node *node;
+		node = kzalloc(sizeof(*node), GFP_KERNEL);
+		if (!node)
+			return;
+		node->map = map;
+		node->name = name;
+		mutex_lock(&regmap_debugfs_early_lock);
+		list_add(&node->link, &regmap_debugfs_early_list);
+		mutex_unlock(&regmap_debugfs_early_lock);
+		return;
+	}
+
 	INIT_LIST_HEAD(&map->debugfs_off_cache);
 	mutex_init(&map->cache_lock);
 
@@ -519,18 +542,42 @@ void regmap_debugfs_init(struct regmap *map, const char *name)
 
 void regmap_debugfs_exit(struct regmap *map)
 {
-	debugfs_remove_recursive(map->debugfs);
-	mutex_lock(&map->cache_lock);
-	regmap_debugfs_free_dump_cache(map);
-	mutex_unlock(&map->cache_lock);
-	kfree(map->debugfs_name);
+	if (map->debugfs) {
+		debugfs_remove_recursive(map->debugfs);
+		mutex_lock(&map->cache_lock);
+		regmap_debugfs_free_dump_cache(map);
+		mutex_unlock(&map->cache_lock);
+		kfree(map->debugfs_name);
+	} else {
+		struct regmap_debugfs_node *node, *tmp;
+
+		mutex_lock(&regmap_debugfs_early_lock);
+		list_for_each_entry_safe(node, tmp, &regmap_debugfs_early_list,
+					 link) {
+			if (node->map == map) {
+				list_del(&node->link);
+				kfree(node);
+			}
+		}
+		mutex_unlock(&regmap_debugfs_early_lock);
+	}
 }
 
 void regmap_debugfs_initcall(void)
 {
+	struct regmap_debugfs_node *node, *tmp;
+
 	regmap_debugfs_root = debugfs_create_dir("regmap", NULL);
 	if (!regmap_debugfs_root) {
 		pr_warn("regmap: Failed to create debugfs root\n");
 		return;
 	}
+
+	mutex_lock(&regmap_debugfs_early_lock);
+	list_for_each_entry_safe(node, tmp, &regmap_debugfs_early_list, link) {
+		regmap_debugfs_init(node->map, node->name);
+		list_del(&node->link);
+		kfree(node);
+	}
+	mutex_unlock(&regmap_debugfs_early_lock);
 }
-- 
cgit 


From 781798a11e2820ee35fa9142869bb8cec117dedc Mon Sep 17 00:00:00 2001
From: Stefan Assmann <sassmann@kpanic.de>
Date: Tue, 24 Sep 2013 05:18:39 +0000
Subject: igb: fix driver reload with VF assigned to guest

commit fa44f2f185f7f9da19d331929bb1b56c1ccd1d93 broke reloading of igb, when
VFs are assigned to a guest, in several ways.
1. on module load adapter->vf_data does not get properly allocated,
resulting in a null pointer exception when accessing adapter->vf_data in
igb_reset() on module reload.
 modprobe -r igb ; modprobe igb max_vfs=7
[  215.215837] igb 0000:01:00.1: removed PHC on eth1
[  216.932072] igb 0000:01:00.1: IOV Disabled
[  216.937038] igb 0000:01:00.0: removed PHC on eth0
[  217.127032] igb 0000:01:00.0: Cannot deallocate SR-IOV virtual functions while they are assigned - VFs will not be deallocated
[  217.146178] igb: Intel(R) Gigabit Ethernet Network Driver - version 5.0.5-k
[  217.154050] igb: Copyright (c) 2007-2013 Intel Corporation.
[  217.160688] igb 0000:01:00.0: Enabling SR-IOV VFs using the module parameter is deprecated - please use the pci sysfs interface.
[  217.173703] igb 0000:01:00.0: irq 103 for MSI/MSI-X
[  217.179227] igb 0000:01:00.0: irq 104 for MSI/MSI-X
[  217.184735] igb 0000:01:00.0: irq 105 for MSI/MSI-X
[  217.220082] BUG: unable to handle kernel NULL pointer dereference at 0000000000000048
[  217.228846] IP: [<ffffffffa007c5e5>] igb_reset+0xc5/0x4b0 [igb]
[  217.235472] PGD 3607ec067 PUD 36170b067 PMD 0
[  217.240461] Oops: 0002 [#1] SMP
[  217.244085] Modules linked in: igb(+) igbvf mptsas mptscsih mptbase scsi_transport_sas [last unloaded: igb]
[  217.255040] CPU: 4 PID: 4833 Comm: modprobe Not tainted 3.11.0+ #46
[...]
[  217.390007]  [<ffffffffa007fab2>] igb_probe+0x892/0xfd0 [igb]
[  217.396422]  [<ffffffff81470b3e>] local_pci_probe+0x1e/0x40
[  217.402641]  [<ffffffff81472029>] pci_device_probe+0xf9/0x110
[...]
2. A follow up issue, pci_enable_sriov() should only be called if no VFs were
still allocated on module unload. Otherwise pci_enable_sriov() gets called
multiple times in a row rendering the NIC unusable until reset.
3. simply calling igb_enable_sriov() in igb_probe_vfs() is not enough as the
interrupts need to be re-setup. Switching that to igb_pci_enable_sriov().

Signed-off-by: Stefan Assmann <sassmann@kpanic.de>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Tested-by: Sibai Li <Sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/igb/igb_main.c | 37 +++++++++++++------------------
 1 file changed, 16 insertions(+), 21 deletions(-)

diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index a505d3bad09a..ebe6370c4b18 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -182,6 +182,7 @@ static void igb_check_vf_rate_limit(struct igb_adapter *);
 
 #ifdef CONFIG_PCI_IOV
 static int igb_vf_configure(struct igb_adapter *adapter, int vf);
+static int igb_pci_enable_sriov(struct pci_dev *dev, int num_vfs);
 #endif
 
 #ifdef CONFIG_PM
@@ -2429,7 +2430,7 @@ err_dma:
 }
 
 #ifdef CONFIG_PCI_IOV
-static int  igb_disable_sriov(struct pci_dev *pdev)
+static int igb_disable_sriov(struct pci_dev *pdev)
 {
 	struct net_device *netdev = pci_get_drvdata(pdev);
 	struct igb_adapter *adapter = netdev_priv(netdev);
@@ -2470,27 +2471,19 @@ static int igb_enable_sriov(struct pci_dev *pdev, int num_vfs)
 	int err = 0;
 	int i;
 
-	if (!adapter->msix_entries) {
+	if (!adapter->msix_entries || num_vfs > 7) {
 		err = -EPERM;
 		goto out;
 	}
-
 	if (!num_vfs)
 		goto out;
-	else if (old_vfs && old_vfs == num_vfs)
-		goto out;
-	else if (old_vfs && old_vfs != num_vfs)
-		err = igb_disable_sriov(pdev);
-
-	if (err)
-		goto out;
 
-	if (num_vfs > 7) {
-		err = -EPERM;
-		goto out;
-	}
-
-	adapter->vfs_allocated_count = num_vfs;
+	if (old_vfs) {
+		dev_info(&pdev->dev, "%d pre-allocated VFs found - override max_vfs setting of %d\n",
+			 old_vfs, max_vfs);
+		adapter->vfs_allocated_count = old_vfs;
+	} else
+		adapter->vfs_allocated_count = num_vfs;
 
 	adapter->vf_data = kcalloc(adapter->vfs_allocated_count,
 				sizeof(struct vf_data_storage), GFP_KERNEL);
@@ -2504,10 +2497,12 @@ static int igb_enable_sriov(struct pci_dev *pdev, int num_vfs)
 		goto out;
 	}
 
-	err = pci_enable_sriov(pdev, adapter->vfs_allocated_count);
-	if (err)
-		goto err_out;
-
+	/* only call pci_enable_sriov() if no VFs are allocated already */
+	if (!old_vfs) {
+		err = pci_enable_sriov(pdev, adapter->vfs_allocated_count);
+		if (err)
+			goto err_out;
+	}
 	dev_info(&pdev->dev, "%d VFs allocated\n",
 		 adapter->vfs_allocated_count);
 	for (i = 0; i < adapter->vfs_allocated_count; i++)
@@ -2623,7 +2618,7 @@ static void igb_probe_vfs(struct igb_adapter *adapter)
 		return;
 
 	pci_sriov_set_totalvfs(pdev, 7);
-	igb_enable_sriov(pdev, max_vfs);
+	igb_pci_enable_sriov(pdev, max_vfs);
 
 #endif /* CONFIG_PCI_IOV */
 }
-- 
cgit 


From f1f965793b2bb8a75067e94acbe886a61637cab8 Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Sat, 31 Aug 2013 02:45:38 +0000
Subject: ixgbe: cleanup ixgbe_enumerate_functions

This function previously had the same check as used by the
ixgbe_pcie_from_parent. As the hardcode is due to the device having an internal
switch, this function should simply use the call from ixgbe_pcie_from_parent.
This reduces code complexity and makes it less likely a developer will forget
to update the list in the future.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 43b777aad288..6828d0e7dc42 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -7362,19 +7362,16 @@ static const struct net_device_ops ixgbe_netdev_ops = {
  **/
 static inline int ixgbe_enumerate_functions(struct ixgbe_adapter *adapter)
 {
-	struct ixgbe_hw *hw = &adapter->hw;
 	struct list_head *entry;
 	int physfns = 0;
 
-	/* Some cards can not use the generic count PCIe functions method, and
-	 * so must be hardcoded to the correct value.
+	/* Some cards can not use the generic count PCIe functions method,
+	 * because they are behind a parent switch, so we hardcode these with
+	 * the correct number of functions.
 	 */
-	switch (hw->device_id) {
-	case IXGBE_DEV_ID_82599_SFP_SF_QP:
-	case IXGBE_DEV_ID_82599_QSFP_SF_QP:
+	if (ixgbe_pcie_from_parent(&adapter->hw)) {
 		physfns = 4;
-		break;
-	default:
+	} else {
 		list_for_each(entry, &adapter->pdev->bus_list) {
 			struct pci_dev *pdev =
 				list_entry(entry, struct pci_dev, bus_list);
-- 
cgit 


From 3176dd5d3b591b22abe28dc0f3aace089f10ebe7 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 24 Oct 2013 12:53:00 +0100
Subject: iio: core: Use pr_err instead of printk

Use of pr_err is preferred to printk.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/industrialio-core.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index f7211576abe5..e4780b41ae04 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -9,6 +9,8 @@
  * Based on elements of hwmon and input subsystems.
  */
 
+#define pr_fmt(fmt) "iio-core: " fmt
+
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/idr.h>
@@ -132,16 +134,13 @@ static int __init iio_init(void)
 	/* Register sysfs bus */
 	ret  = bus_register(&iio_bus_type);
 	if (ret < 0) {
-		printk(KERN_ERR
-		       "%s could not register bus type\n",
-			__FILE__);
+		pr_err("could not register bus type\n");
 		goto error_nothing;
 	}
 
 	ret = alloc_chrdev_region(&iio_devt, 0, IIO_DEV_MAX, "iio");
 	if (ret < 0) {
-		printk(KERN_ERR "%s: failed to allocate char dev region\n",
-		       __FILE__);
+		pr_err("failed to allocate char dev region\n");
 		goto error_unregister_bus_type;
 	}
 
@@ -951,7 +950,7 @@ struct iio_dev *iio_device_alloc(int sizeof_priv)
 		dev->id = ida_simple_get(&iio_ida, 0, 0, GFP_KERNEL);
 		if (dev->id < 0) {
 			/* cannot use a dev_err as the name isn't available */
-			printk(KERN_ERR "Failed to get id\n");
+			pr_err("failed to get device id\n");
 			kfree(dev);
 			return NULL;
 		}
-- 
cgit 


From 670c11033dc57c1cf5d9e0056e3c6734e6554d91 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 24 Oct 2013 12:53:00 +0100
Subject: iio: core: Add misssing braces

Silences the following checkpatch warning:
WARNING: sizeof *iio_attr should be sizeof(*iio_attr)

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/industrialio-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index e4780b41ae04..18f72e3d0ed6 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -685,7 +685,7 @@ int __iio_add_chan_devattr(const char *postfix,
 	int ret;
 	struct iio_dev_attr *iio_attr, *t;
 
-	iio_attr = kzalloc(sizeof *iio_attr, GFP_KERNEL);
+	iio_attr = kzalloc(sizeof(*iio_attr), GFP_KERNEL);
 	if (iio_attr == NULL) {
 		ret = -ENOMEM;
 		goto error_ret;
-- 
cgit 


From dcf5272cac4115bfd52afd30e9a8ba5fb9c8d449 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 24 Oct 2013 12:53:00 +0100
Subject: iio: accel: kxsd9: Remove redundant variable

Return directly thereby eliminating an intermediate variable.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/accel/kxsd9.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/iio/accel/kxsd9.c b/drivers/iio/accel/kxsd9.c
index 709c13259f14..d72118d1189c 100644
--- a/drivers/iio/accel/kxsd9.c
+++ b/drivers/iio/accel/kxsd9.c
@@ -222,7 +222,6 @@ static int kxsd9_probe(struct spi_device *spi)
 {
 	struct iio_dev *indio_dev;
 	struct kxsd9_state *st;
-	int ret;
 
 	indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
 	if (!indio_dev)
@@ -244,11 +243,7 @@ static int kxsd9_probe(struct spi_device *spi)
 	spi_setup(spi);
 	kxsd9_power_up(st);
 
-	ret = iio_device_register(indio_dev);
-	if (ret)
-		return ret;
-
-	return 0;
+	return iio_device_register(indio_dev);
 }
 
 static int kxsd9_remove(struct spi_device *spi)
-- 
cgit 


From ae0f29d1593fabb8eade5f93352e05f88f6245bd Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 24 Oct 2013 12:53:00 +0100
Subject: iio: adc: twl6030-gpadc: Remove redundant code

The if check is redundant as the value obtained from
iio_device_register() is already in the required format.
Hence return the function directly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/twl6030-gpadc.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/iio/adc/twl6030-gpadc.c b/drivers/iio/adc/twl6030-gpadc.c
index 2edfc7bd4f63..53e1c645cee7 100644
--- a/drivers/iio/adc/twl6030-gpadc.c
+++ b/drivers/iio/adc/twl6030-gpadc.c
@@ -948,9 +948,7 @@ static int twl6030_gpadc_probe(struct platform_device *pdev)
 	indio_dev->channels = pdata->iio_channels;
 	indio_dev->num_channels = pdata->nchannels;
 
-	ret = iio_device_register(indio_dev);
-
-	return ret;
+	return iio_device_register(indio_dev);
 }
 
 static int twl6030_gpadc_remove(struct platform_device *pdev)
-- 
cgit 


From 88011c0911ee7a1b001393662b9884fb7f32eec6 Mon Sep 17 00:00:00 2001
From: Kailang Yang <kailang@realtek.com>
Date: Thu, 24 Oct 2013 15:45:24 +0200
Subject: ALSA: hda/realtek - Raise the delay for alc283_shutup

Some machine with 85ms delay might be happen pop noise when codec
enter to D3.  Raise up to 100ms delay will be match for more machine.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 3016467c04cc..dde858be3be5 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -2656,7 +2656,7 @@ static void alc283_shutup(struct hda_codec *codec)
 			    AC_VERB_SET_AMP_GAIN_MUTE, AMP_OUT_MUTE);
 
 	if (hp_pin_sense)
-		msleep(85);
+		msleep(100);
 
 	snd_hda_codec_write(codec, hp_pin, 0,
 			    AC_VERB_SET_PIN_WIDGET_CONTROL, 0x0);
@@ -2665,7 +2665,7 @@ static void alc283_shutup(struct hda_codec *codec)
 	alc_write_coef_idx(codec, 0x46, val | (3 << 12));
 
 	if (hp_pin_sense)
-		msleep(85);
+		msleep(100);
 	snd_hda_shutup_pins(codec);
 	alc_write_coef_idx(codec, 0x43, 0x9614);
 }
-- 
cgit 


From 35b9c0b18eaa81d96841c50452f74ed1a7aa4ae7 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 24 Oct 2013 12:53:00 +0100
Subject: iio: dac: ad5421: Remove redundant code

The if check is redundant as the value obtained from
iio_device_register() is already in the required format.
Hence return the function directly. Error messages are already
printed by iio_device_register(); hence not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/ad5421.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/iio/dac/ad5421.c b/drivers/iio/dac/ad5421.c
index c44afeb06f56..3eeaa82075f7 100644
--- a/drivers/iio/dac/ad5421.c
+++ b/drivers/iio/dac/ad5421.c
@@ -514,13 +514,7 @@ static int ad5421_probe(struct spi_device *spi)
 			return ret;
 	}
 
-	ret = iio_device_register(indio_dev);
-	if (ret) {
-		dev_err(&spi->dev, "Failed to register iio device: %d\n", ret);
-		return ret;
-	}
-
-	return 0;
+	return iio_device_register(indio_dev);
 }
 
 static int ad5421_remove(struct spi_device *spi)
-- 
cgit 


From e2f5543a73eaee370a0e0ed280aa71d3693ded2e Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 24 Oct 2013 12:53:00 +0100
Subject: iio: dac: ad5755: Remove redundant code

The if check is redundant as the value obtained from
iio_device_register() is already in the required format.
Error messages are already printed by iio_device_register();
hence not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/ad5755.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/iio/dac/ad5755.c b/drivers/iio/dac/ad5755.c
index bd31dbc340c1..9a78d5abb2f6 100644
--- a/drivers/iio/dac/ad5755.c
+++ b/drivers/iio/dac/ad5755.c
@@ -589,13 +589,7 @@ static int ad5755_probe(struct spi_device *spi)
 	if (ret)
 		return ret;
 
-	ret = iio_device_register(indio_dev);
-	if (ret) {
-		dev_err(&spi->dev, "Failed to register iio device: %d\n", ret);
-		return ret;
-	}
-
-	return 0;
+	return iio_device_register(indio_dev);
 }
 
 static int ad5755_remove(struct spi_device *spi)
-- 
cgit 


From 345d4f92e72964e2d2f482c635bc949b04f861ed Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 24 Oct 2013 12:53:00 +0100
Subject: iio: dac: max517: Remove redundant variable

Remove an inconsequential print message and return directly
thereby eliminating an intermediate variable.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/max517.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/iio/dac/max517.c b/drivers/iio/dac/max517.c
index d26be14fff64..6e1903537950 100644
--- a/drivers/iio/dac/max517.c
+++ b/drivers/iio/dac/max517.c
@@ -160,7 +160,6 @@ static int max517_probe(struct i2c_client *client,
 	struct max517_data *data;
 	struct iio_dev *indio_dev;
 	struct max517_platform_data *platform_data = client->dev.platform_data;
-	int err;
 
 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
 	if (!indio_dev)
@@ -192,13 +191,7 @@ static int max517_probe(struct i2c_client *client,
 		data->vref_mv[1] = platform_data->vref_mv[1];
 	}
 
-	err = iio_device_register(indio_dev);
-	if (err)
-		return err;
-
-	dev_info(&client->dev, "DAC registered\n");
-
-	return 0;
+	return iio_device_register(indio_dev);
 }
 
 static int max517_remove(struct i2c_client *client)
-- 
cgit 


From a9b685110036e27ccd9ed0d71e08bb66f3fed6fd Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 24 Oct 2013 12:53:00 +0100
Subject: iio: dac: mcp4725: Remove redundant code

Remove an inconsequential print message and return directly
thereby cleaning up some code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/dac/mcp4725.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/iio/dac/mcp4725.c b/drivers/iio/dac/mcp4725.c
index d982752dd9c4..9f57ae84ab89 100644
--- a/drivers/iio/dac/mcp4725.c
+++ b/drivers/iio/dac/mcp4725.c
@@ -320,13 +320,7 @@ static int mcp4725_probe(struct i2c_client *client,
 	data->powerdown_mode = pd ? pd-1 : 2; /* 500kohm_to_gnd */
 	data->dac_value = (inbuf[1] << 4) | (inbuf[2] >> 4);
 
-	err = iio_device_register(indio_dev);
-	if (err)
-		return err;
-
-	dev_info(&client->dev, "MCP4725 DAC registered\n");
-
-	return 0;
+	return iio_device_register(indio_dev);
 }
 
 static int mcp4725_remove(struct i2c_client *client)
-- 
cgit 


From e0203255415844d73b5f4bec9bc72903c8e49d8d Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Thu, 24 Oct 2013 12:53:00 +0100
Subject: iio: light: vcnl4000: Remove redundant code

The if check is redundant as the value obtained from
iio_device_register() is already in the required format.
Hence return the function directly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/light/vcnl4000.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/iio/light/vcnl4000.c b/drivers/iio/light/vcnl4000.c
index 2bb304215b1d..ecb3341ef9c0 100644
--- a/drivers/iio/light/vcnl4000.c
+++ b/drivers/iio/light/vcnl4000.c
@@ -179,11 +179,7 @@ static int vcnl4000_probe(struct i2c_client *client,
 	indio_dev->name = VCNL4000_DRV_NAME;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 
-	ret = iio_device_register(indio_dev);
-	if (ret < 0)
-		return ret;
-
-	return 0;
+	return iio_device_register(indio_dev);
 }
 
 static int vcnl4000_remove(struct i2c_client *client)
-- 
cgit 


From c0798edfb32497a886308a2614fd0a4e6da499c0 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Wed, 4 Sep 2013 17:30:08 +0000
Subject: ixgbe: use pcie_capability_read_word() to simplify code

use pcie_capability_read_word() to simplify code.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 6828d0e7dc42..ce3eb603333e 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -153,7 +153,6 @@ MODULE_VERSION(DRV_VERSION);
 static int ixgbe_read_pci_cfg_word_parent(struct ixgbe_adapter *adapter,
 					  u32 reg, u16 *value)
 {
-	int pos = 0;
 	struct pci_dev *parent_dev;
 	struct pci_bus *parent_bus;
 
@@ -165,11 +164,10 @@ static int ixgbe_read_pci_cfg_word_parent(struct ixgbe_adapter *adapter,
 	if (!parent_dev)
 		return -1;
 
-	pos = pci_find_capability(parent_dev, PCI_CAP_ID_EXP);
-	if (!pos)
+	if (!pci_is_pcie(parent_dev))
 		return -1;
 
-	pci_read_config_word(parent_dev, pos + reg, value);
+	pcie_capability_read_word(parent_dev, reg, value);
 	return 0;
 }
 
-- 
cgit 


From 2e0103810c6fed6a736c4a3af87b0f5c6bd8cd5b Mon Sep 17 00:00:00 2001
From: Emil Tantilov <emil.s.tantilov@intel.com>
Date: Tue, 22 Oct 2013 08:21:04 +0000
Subject: ixgbe: fix rx-usecs range checks for BQL

This patch resolves an issue where the logic used to detect changes in rx-usecs
was incorrect and was masked by the call to ixgbe_update_rsc().

Setting rx-usecs between 0,2-9 and 1,10 and up requires a reset to allow
ixgbe_configure_tx_ring() to set the correct value for TXDCTL.WTHRESH in
order to avoid Tx hangs with BQL enabled.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
index 90aac31b3551..4e7c9b098b58 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -2257,13 +2257,13 @@ static int ixgbe_set_coalesce(struct net_device *netdev,
 
 #if IS_ENABLED(CONFIG_BQL)
 	/* detect ITR changes that require update of TXDCTL.WTHRESH */
-	if ((adapter->tx_itr_setting > 1) &&
+	if ((adapter->tx_itr_setting != 1) &&
 	    (adapter->tx_itr_setting < IXGBE_100K_ITR)) {
 		if ((tx_itr_prev == 1) ||
-		    (tx_itr_prev > IXGBE_100K_ITR))
+		    (tx_itr_prev >= IXGBE_100K_ITR))
 			need_reset = true;
 	} else {
-		if ((tx_itr_prev > 1) &&
+		if ((tx_itr_prev != 1) &&
 		    (tx_itr_prev < IXGBE_100K_ITR))
 			need_reset = true;
 	}
-- 
cgit 


From 1bb9c6390e0f6df355576b48514b393a2579c3b9 Mon Sep 17 00:00:00 2001
From: Don Skidmore <donald.c.skidmore@intel.com>
Date: Sat, 21 Sep 2013 01:57:33 +0000
Subject: ixgbevf: Adds function to set PSRTYPE register

This patch creates a new function to set PSRTYPE. This function helps lay
the ground work for eventual multi queue support.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index ce27d62f9c8e..c0f9aad2cda3 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -1082,6 +1082,21 @@ static void ixgbevf_configure_srrctl(struct ixgbevf_adapter *adapter, int index)
 	IXGBE_WRITE_REG(hw, IXGBE_VFSRRCTL(index), srrctl);
 }
 
+static void ixgbevf_setup_psrtype(struct ixgbevf_adapter *adapter)
+{
+	struct ixgbe_hw *hw = &adapter->hw;
+
+	/* PSRTYPE must be initialized in 82599 */
+	u32 psrtype = IXGBE_PSRTYPE_TCPHDR | IXGBE_PSRTYPE_UDPHDR |
+		      IXGBE_PSRTYPE_IPV4HDR | IXGBE_PSRTYPE_IPV6HDR |
+		      IXGBE_PSRTYPE_L2HDR;
+
+	if (adapter->num_rx_queues > 1)
+		psrtype |= 1 << 29;
+
+	IXGBE_WRITE_REG(hw, IXGBE_VFPSRTYPE, psrtype);
+}
+
 static void ixgbevf_set_rx_buffer_len(struct ixgbevf_adapter *adapter)
 {
 	struct ixgbe_hw *hw = &adapter->hw;
@@ -1129,8 +1144,7 @@ static void ixgbevf_configure_rx(struct ixgbevf_adapter *adapter)
 	int i, j;
 	u32 rdlen;
 
-	/* PSRTYPE must be initialized in 82599 */
-	IXGBE_WRITE_REG(hw, IXGBE_VFPSRTYPE, 0);
+	ixgbevf_setup_psrtype(adapter);
 
 	/* set_rx_buffer_len must be called before ring initialization */
 	ixgbevf_set_rx_buffer_len(adapter);
-- 
cgit 


From 3849623e03662babfdb82a6192e2f23b3f157119 Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Tue, 22 Oct 2013 06:19:18 +0000
Subject: ixgbevf: implement ethtool get/set coalesce

This patch adds support for ethtool's get_coalesce and set_coalesce command for
the ixgbevf driver. This enables dynamically updating the minimum time between
interrupts.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbevf/ethtool.c      | 81 +++++++++++++++++++++++
 drivers/net/ethernet/intel/ixgbevf/ixgbevf.h      |  2 +
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c |  2 +-
 3 files changed, 84 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ethtool.c b/drivers/net/ethernet/intel/ixgbevf/ethtool.c
index 84329b0d567a..21adb1bc1706 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ethtool.c
@@ -634,6 +634,85 @@ static int ixgbevf_nway_reset(struct net_device *netdev)
 	return 0;
 }
 
+static int ixgbevf_get_coalesce(struct net_device *netdev,
+				struct ethtool_coalesce *ec)
+{
+	struct ixgbevf_adapter *adapter = netdev_priv(netdev);
+
+	/* only valid if in constant ITR mode */
+	if (adapter->rx_itr_setting <= 1)
+		ec->rx_coalesce_usecs = adapter->rx_itr_setting;
+	else
+		ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2;
+
+	/* if in mixed tx/rx queues per vector mode, report only rx settings */
+	if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count)
+		return 0;
+
+	/* only valid if in constant ITR mode */
+	if (adapter->tx_itr_setting <= 1)
+		ec->tx_coalesce_usecs = adapter->tx_itr_setting;
+	else
+		ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2;
+
+	return 0;
+}
+
+static int ixgbevf_set_coalesce(struct net_device *netdev,
+				struct ethtool_coalesce *ec)
+{
+	struct ixgbevf_adapter *adapter = netdev_priv(netdev);
+	struct ixgbevf_q_vector *q_vector;
+	int num_vectors, i;
+	u16 tx_itr_param, rx_itr_param;
+
+	/* don't accept tx specific changes if we've got mixed RxTx vectors */
+	if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count
+	    && ec->tx_coalesce_usecs)
+		return -EINVAL;
+
+
+	if ((ec->rx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)) ||
+	    (ec->tx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)))
+		return -EINVAL;
+
+	if (ec->rx_coalesce_usecs > 1)
+		adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;
+	else
+		adapter->rx_itr_setting = ec->rx_coalesce_usecs;
+
+	if (adapter->rx_itr_setting == 1)
+		rx_itr_param = IXGBE_20K_ITR;
+	else
+		rx_itr_param = adapter->rx_itr_setting;
+
+
+	if (ec->tx_coalesce_usecs > 1)
+		adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;
+	else
+		adapter->tx_itr_setting = ec->tx_coalesce_usecs;
+
+	if (adapter->tx_itr_setting == 1)
+		tx_itr_param = IXGBE_10K_ITR;
+	else
+		tx_itr_param = adapter->tx_itr_setting;
+
+	num_vectors = adapter->num_msix_vectors - NON_Q_VECTORS;
+
+	for (i = 0; i < num_vectors; i++) {
+		q_vector = adapter->q_vector[i];
+		if (q_vector->tx.count && !q_vector->rx.count)
+			/* tx only */
+			q_vector->itr = tx_itr_param;
+		else
+			/* rx only or mixed */
+			q_vector->itr = rx_itr_param;
+		ixgbevf_write_eitr(q_vector);
+	}
+
+	return 0;
+}
+
 static const struct ethtool_ops ixgbevf_ethtool_ops = {
 	.get_settings           = ixgbevf_get_settings,
 	.get_drvinfo            = ixgbevf_get_drvinfo,
@@ -649,6 +728,8 @@ static const struct ethtool_ops ixgbevf_ethtool_ops = {
 	.get_sset_count         = ixgbevf_get_sset_count,
 	.get_strings            = ixgbevf_get_strings,
 	.get_ethtool_stats      = ixgbevf_get_ethtool_stats,
+	.get_coalesce           = ixgbevf_get_coalesce,
+	.set_coalesce           = ixgbevf_set_coalesce,
 };
 
 void ixgbevf_set_ethtool_ops(struct net_device *netdev)
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
index 64a2b912e73c..d7837dcc9897 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
@@ -293,6 +293,8 @@ void ixgbevf_free_tx_resources(struct ixgbevf_adapter *, struct ixgbevf_ring *);
 void ixgbevf_update_stats(struct ixgbevf_adapter *adapter);
 int ethtool_ioctl(struct ifreq *ifr);
 
+extern void ixgbevf_write_eitr(struct ixgbevf_q_vector *q_vector);
+
 void ixgbe_napi_add_all(struct ixgbevf_adapter *adapter);
 void ixgbe_napi_del_all(struct ixgbevf_adapter *adapter);
 
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index c0f9aad2cda3..8407fd274810 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -580,7 +580,7 @@ static int ixgbevf_poll(struct napi_struct *napi, int budget)
  * ixgbevf_write_eitr - write VTEITR register in hardware specific way
  * @q_vector: structure containing interrupt and ring information
  */
-static void ixgbevf_write_eitr(struct ixgbevf_q_vector *q_vector)
+void ixgbevf_write_eitr(struct ixgbevf_q_vector *q_vector)
 {
 	struct ixgbevf_adapter *adapter = q_vector->adapter;
 	struct ixgbe_hw *hw = &adapter->hw;
-- 
cgit 


From 9e6fcae767da775df1679646749717c223440382 Mon Sep 17 00:00:00 2001
From: Don Skidmore <donald.c.skidmore@intel.com>
Date: Sat, 21 Sep 2013 05:21:18 +0000
Subject: ixgbevf: bump driver version

Bump patch to reflect what version of the out of tree driver it has
equivalent functionality with (2.11.3).

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 8407fd274810..87279c8ab2b9 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -58,7 +58,7 @@ const char ixgbevf_driver_name[] = "ixgbevf";
 static const char ixgbevf_driver_string[] =
 	"Intel(R) 10 Gigabit PCI Express Virtual Function Network Driver";
 
-#define DRV_VERSION "2.7.12-k"
+#define DRV_VERSION "2.11.3-k"
 const char ixgbevf_driver_version[] = DRV_VERSION;
 static char ixgbevf_copyright[] =
 	"Copyright (c) 2009 - 2012 Intel Corporation.";
-- 
cgit 


From ce5be5a16359962f78f0203f0ed7ad6d489492ab Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Wed, 23 Oct 2013 13:32:04 +0200
Subject: tracing/events: Fix swiotlb tracepoint creation

Tracepoints are only created when Xen support is enabled, but they are
also referenced within lib/swiotlb.c. So unless Xen support is enabled
the tracepoints will be missing, therefore causing builds to fail. Fix
this by moving the tracepoint creation to lib/swiotlb.c, which works
nicely because the Xen swiotlb support selects the generic swiotlb
support.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
 drivers/xen/swiotlb-xen.c | 1 -
 lib/swiotlb.c             | 1 +
 2 files changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index b31081007a81..44af9d8577de 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -43,7 +43,6 @@
 #include <xen/xen-ops.h>
 #include <xen/hvc-console.h>
 
-#define CREATE_TRACE_POINTS
 #include <trace/events/swiotlb.h>
 /*
  * Used to do a quick range check in swiotlb_tbl_unmap_single and
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index f0d841907da6..55587060e893 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -38,6 +38,7 @@
 #include <linux/bootmem.h>
 #include <linux/iommu-helper.h>
 
+#define CREATE_TRACE_POINTS
 #include <trace/events/swiotlb.h>
 
 #define OFFSET(val,align) ((unsigned long)	\
-- 
cgit 


From e29a074b44a9110c567fc31cdb12928f8eca7c79 Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Thu, 24 Oct 2013 12:00:28 +0100
Subject: arm64: Fix memory layout typo

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 Documentation/arm64/memory.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/arm64/memory.txt b/Documentation/arm64/memory.txt
index 78a377124ef0..f28899d5c83e 100644
--- a/Documentation/arm64/memory.txt
+++ b/Documentation/arm64/memory.txt
@@ -39,7 +39,7 @@ ffffffbffbc00000	ffffffbffbdfffff	   2MB		earlyprintk device
 
 ffffffbffbe00000	ffffffbffbe0ffff	  64KB		PCI I/O space
 
-ffffffbbffff0000	ffffffbcffffffff	  ~2MB		[guard]
+ffffffbffbe10000	ffffffbcffffffff	  ~2MB		[guard]
 
 ffffffbffc000000	ffffffbfffffffff	  64MB		modules
 
-- 
cgit 


From 52ea2a560a9dba57fe5fd6b4726b1089751accf2 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Wed, 9 Oct 2013 15:54:26 +0100
Subject: arm64: locks: introduce ticket-based spinlock implementation

This patch introduces a ticket lock implementation for arm64, along the
same lines as the implementation for arch/arm/.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/include/asm/spinlock.h       | 79 ++++++++++++++++++++++-----------
 arch/arm64/include/asm/spinlock_types.h | 10 ++---
 2 files changed, 58 insertions(+), 31 deletions(-)

diff --git a/arch/arm64/include/asm/spinlock.h b/arch/arm64/include/asm/spinlock.h
index 0defa0728a9b..525dd535443e 100644
--- a/arch/arm64/include/asm/spinlock.h
+++ b/arch/arm64/include/asm/spinlock.h
@@ -22,17 +22,10 @@
 /*
  * Spinlock implementation.
  *
- * The old value is read exclusively and the new one, if unlocked, is written
- * exclusively. In case of failure, the loop is restarted.
- *
  * The memory barriers are implicit with the load-acquire and store-release
  * instructions.
- *
- * Unlocked value: 0
- * Locked value: 1
  */
 
-#define arch_spin_is_locked(x)		((x)->lock != 0)
 #define arch_spin_unlock_wait(lock) \
 	do { while (arch_spin_is_locked(lock)) cpu_relax(); } while (0)
 
@@ -41,32 +34,51 @@
 static inline void arch_spin_lock(arch_spinlock_t *lock)
 {
 	unsigned int tmp;
+	arch_spinlock_t lockval, newval;
 
 	asm volatile(
-	"	sevl\n"
-	"1:	wfe\n"
-	"2:	ldaxr	%w0, %1\n"
-	"	cbnz	%w0, 1b\n"
-	"	stxr	%w0, %w2, %1\n"
-	"	cbnz	%w0, 2b\n"
-	: "=&r" (tmp), "+Q" (lock->lock)
-	: "r" (1)
-	: "cc", "memory");
+	/* Atomically increment the next ticket. */
+"	prfm	pstl1strm, %3\n"
+"1:	ldaxr	%w0, %3\n"
+"	add	%w1, %w0, %w5\n"
+"	stxr	%w2, %w1, %3\n"
+"	cbnz	%w2, 1b\n"
+	/* Did we get the lock? */
+"	eor	%w1, %w0, %w0, ror #16\n"
+"	cbz	%w1, 3f\n"
+	/*
+	 * No: spin on the owner. Send a local event to avoid missing an
+	 * unlock before the exclusive load.
+	 */
+"	sevl\n"
+"2:	wfe\n"
+"	ldaxrh	%w2, %4\n"
+"	eor	%w1, %w2, %w0, lsr #16\n"
+"	cbnz	%w1, 2b\n"
+	/* We got the lock. Critical section starts here. */
+"3:"
+	: "=&r" (lockval), "=&r" (newval), "=&r" (tmp), "+Q" (*lock)
+	: "Q" (lock->owner), "I" (1 << TICKET_SHIFT)
+	: "memory");
 }
 
 static inline int arch_spin_trylock(arch_spinlock_t *lock)
 {
 	unsigned int tmp;
+	arch_spinlock_t lockval;
 
 	asm volatile(
-	"2:	ldaxr	%w0, %1\n"
-	"	cbnz	%w0, 1f\n"
-	"	stxr	%w0, %w2, %1\n"
-	"	cbnz	%w0, 2b\n"
-	"1:\n"
-	: "=&r" (tmp), "+Q" (lock->lock)
-	: "r" (1)
-	: "cc", "memory");
+"	prfm	pstl1strm, %2\n"
+"1:	ldaxr	%w0, %2\n"
+"	eor	%w1, %w0, %w0, ror #16\n"
+"	cbnz	%w1, 2f\n"
+"	add	%w0, %w0, %3\n"
+"	stxr	%w1, %w0, %2\n"
+"	cbnz	%w1, 1b\n"
+"2:"
+	: "=&r" (lockval), "=&r" (tmp), "+Q" (*lock)
+	: "I" (1 << TICKET_SHIFT)
+	: "memory");
 
 	return !tmp;
 }
@@ -74,9 +86,24 @@ static inline int arch_spin_trylock(arch_spinlock_t *lock)
 static inline void arch_spin_unlock(arch_spinlock_t *lock)
 {
 	asm volatile(
-	"	stlr	%w1, %0\n"
-	: "=Q" (lock->lock) : "r" (0) : "memory");
+"	stlrh	%w1, %0\n"
+	: "=Q" (lock->owner)
+	: "r" (lock->owner + 1)
+	: "memory");
+}
+
+static inline int arch_spin_is_locked(arch_spinlock_t *lock)
+{
+	arch_spinlock_t lockval = ACCESS_ONCE(*lock);
+	return lockval.owner != lockval.next;
+}
+
+static inline int arch_spin_is_contended(arch_spinlock_t *lock)
+{
+	arch_spinlock_t lockval = ACCESS_ONCE(*lock);
+	return (lockval.next - lockval.owner) > 1;
 }
+#define arch_spin_is_contended	arch_spin_is_contended
 
 /*
  * Write lock implementation.
diff --git a/arch/arm64/include/asm/spinlock_types.h b/arch/arm64/include/asm/spinlock_types.h
index 9a494346efed..87692750ed94 100644
--- a/arch/arm64/include/asm/spinlock_types.h
+++ b/arch/arm64/include/asm/spinlock_types.h
@@ -20,14 +20,14 @@
 # error "please don't include this file directly"
 #endif
 
-/* We only require natural alignment for exclusive accesses. */
-#define __lock_aligned
+#define TICKET_SHIFT	16
 
 typedef struct {
-	volatile unsigned int lock;
-} arch_spinlock_t;
+	u16 owner;
+	u16 next;
+} __aligned(4) arch_spinlock_t;
 
-#define __ARCH_SPIN_LOCK_UNLOCKED	{ 0 }
+#define __ARCH_SPIN_LOCK_UNLOCKED	{ 0 , 0 }
 
 typedef struct {
 	volatile unsigned int lock;
-- 
cgit 


From 5686b06cea34e31ec0a549d9b5ac00776e8e8d6d Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Wed, 9 Oct 2013 15:54:27 +0100
Subject: arm64: lockref: add support for lockless lockrefs using cmpxchg

Our spinlocks are only 32-bit (2x16-bit tickets) and our cmpxchg can
deal with 8-bytes (as one would hope!).

This patch wires up the cmpxchg-based lockless lockref implementation
for arm64.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/Kconfig                | 1 +
 arch/arm64/include/asm/spinlock.h | 8 ++++++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index c04454876bcb..9e8233b3f188 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1,6 +1,7 @@
 config ARM64
 	def_bool y
 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
+	select ARCH_USE_CMPXCHG_LOCKREF
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
 	select ARCH_WANT_FRAME_POINTERS
diff --git a/arch/arm64/include/asm/spinlock.h b/arch/arm64/include/asm/spinlock.h
index 525dd535443e..3d5cf064d7a1 100644
--- a/arch/arm64/include/asm/spinlock.h
+++ b/arch/arm64/include/asm/spinlock.h
@@ -92,10 +92,14 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock)
 	: "memory");
 }
 
+static inline int arch_spin_value_unlocked(arch_spinlock_t lock)
+{
+	return lock.owner == lock.next;
+}
+
 static inline int arch_spin_is_locked(arch_spinlock_t *lock)
 {
-	arch_spinlock_t lockval = ACCESS_ONCE(*lock);
-	return lockval.owner != lockval.next;
+	return !arch_spin_value_unlocked(ACCESS_ONCE(*lock));
 }
 
 static inline int arch_spin_is_contended(arch_spinlock_t *lock)
-- 
cgit 


From cf10b79a7d88edc689479af989b3a88e9adf07ff Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Wed, 9 Oct 2013 15:54:28 +0100
Subject: arm64: cmpxchg: implement cmpxchg64_relaxed

This patch introduces cmpxchg64_relaxed for arm64 using the existing
cmpxchg_local macro, which performs a cmpxchg operation (up to 64 bits)
without barrier semantics.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/include/asm/cmpxchg.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/include/asm/cmpxchg.h b/arch/arm64/include/asm/cmpxchg.h
index 8a8ce0e73a38..3914c0dcd09c 100644
--- a/arch/arm64/include/asm/cmpxchg.h
+++ b/arch/arm64/include/asm/cmpxchg.h
@@ -173,4 +173,6 @@ static inline unsigned long __cmpxchg_mb(volatile void *ptr, unsigned long old,
 #define cmpxchg64(ptr,o,n)		cmpxchg((ptr),(o),(n))
 #define cmpxchg64_local(ptr,o,n)	cmpxchg_local((ptr),(o),(n))
 
+#define cmpxchg64_relaxed(ptr,o,n)	cmpxchg_local((ptr),(o),(n))
+
 #endif	/* __ASM_CMPXCHG_H */
-- 
cgit 


From 2a3f912c782f2364f5e5813ab66ca6c92fb43acb Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Mon, 7 Oct 2013 16:42:05 +0100
Subject: arm64: Export __copy_in_user() to modules

This function may be called from loadable modules, so it needs
exporting.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Loc Ho <lho@apm.com>
---
 arch/arm64/kernel/arm64ksyms.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/kernel/arm64ksyms.c b/arch/arm64/kernel/arm64ksyms.c
index 41b4f626d554..e7ee770c0697 100644
--- a/arch/arm64/kernel/arm64ksyms.c
+++ b/arch/arm64/kernel/arm64ksyms.c
@@ -39,6 +39,7 @@ EXPORT_SYMBOL(clear_page);
 EXPORT_SYMBOL(__copy_from_user);
 EXPORT_SYMBOL(__copy_to_user);
 EXPORT_SYMBOL(__clear_user);
+EXPORT_SYMBOL(__copy_in_user);
 
 	/* physical memory */
 EXPORT_SYMBOL(memstart_addr);
-- 
cgit 


From 4fcd6e1416b0424f94ede03cb322a323a640bf4b Mon Sep 17 00:00:00 2001
From: Mark Rutland <mark.rutland@arm.com>
Date: Fri, 11 Oct 2013 14:52:07 +0100
Subject: Docs: arm64: booting: clarify boot requirements

There are a few points in the arm64 booting document which are unclear
(such as the initial state of secondary CPUs), and/or have not been
documented (PSCI is a supported mechanism for booting secondary CPUs).

This patch amends the arm64 boot document to better express the
(existing) requirements, and to describe PSCI as a supported booting
mechanism.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Dave Martin <dave.martin@arm.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Fu Wei <tekkamanninja@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 Documentation/arm64/booting.txt | 45 ++++++++++++++++++++++++++++-------------
 1 file changed, 31 insertions(+), 14 deletions(-)

diff --git a/Documentation/arm64/booting.txt b/Documentation/arm64/booting.txt
index 98df4a03807e..a9691cc48fe3 100644
--- a/Documentation/arm64/booting.txt
+++ b/Documentation/arm64/booting.txt
@@ -115,9 +115,10 @@ Before jumping into the kernel, the following conditions must be met:
   External caches (if present) must be configured and disabled.
 
 - Architected timers
-  CNTFRQ must be programmed with the timer frequency.
-  If entering the kernel at EL1, CNTHCTL_EL2 must have EL1PCTEN (bit 0)
-  set where available.
+  CNTFRQ must be programmed with the timer frequency and CNTVOFF must
+  be programmed with a consistent value on all CPUs.  If entering the
+  kernel at EL1, CNTHCTL_EL2 must have EL1PCTEN (bit 0) set where
+  available.
 
 - Coherency
   All CPUs to be booted by the kernel must be part of the same coherency
@@ -130,30 +131,46 @@ Before jumping into the kernel, the following conditions must be met:
   the kernel image will be entered must be initialised by software at a
   higher exception level to prevent execution in an UNKNOWN state.
 
+The requirements described above for CPU mode, caches, MMUs, architected
+timers, coherency and system registers apply to all CPUs.  All CPUs must
+enter the kernel in the same exception level.
+
 The boot loader is expected to enter the kernel on each CPU in the
 following manner:
 
 - The primary CPU must jump directly to the first instruction of the
   kernel image.  The device tree blob passed by this CPU must contain
-  for each CPU node:
-
-    1. An 'enable-method' property. Currently, the only supported value
-       for this field is the string "spin-table".
-
-    2. A 'cpu-release-addr' property identifying a 64-bit,
-       zero-initialised memory location.
+  an 'enable-method' property for each cpu node.  The supported
+  enable-methods are described below.
 
   It is expected that the bootloader will generate these device tree
   properties and insert them into the blob prior to kernel entry.
 
-- Any secondary CPUs must spin outside of the kernel in a reserved area
-  of memory (communicated to the kernel by a /memreserve/ region in the
+- CPUs with a "spin-table" enable-method must have a 'cpu-release-addr'
+  property in their cpu node.  This property identifies a
+  naturally-aligned 64-bit zero-initalised memory location.
+
+  These CPUs should spin outside of the kernel in a reserved area of
+  memory (communicated to the kernel by a /memreserve/ region in the
   device tree) polling their cpu-release-addr location, which must be
   contained in the reserved region.  A wfe instruction may be inserted
   to reduce the overhead of the busy-loop and a sev will be issued by
   the primary CPU.  When a read of the location pointed to by the
-  cpu-release-addr returns a non-zero value, the CPU must jump directly
-  to this value.
+  cpu-release-addr returns a non-zero value, the CPU must jump to this
+  value.  The value will be written as a single 64-bit little-endian
+  value, so CPUs must convert the read value to their native endianness
+  before jumping to it.
+
+- CPUs with a "psci" enable method should remain outside of
+  the kernel (i.e. outside of the regions of memory described to the
+  kernel in the memory node, or in a reserved area of memory described
+  to the kernel by a /memreserve/ region in the device tree).  The
+  kernel will issue CPU_ON calls as described in ARM document number ARM
+  DEN 0022A ("Power State Coordination Interface System Software on ARM
+  processors") to bring CPUs into the kernel.
+
+  The device tree should contain a 'psci' node, as described in
+  Documentation/devicetree/bindings/arm/psci.txt.
 
 - Secondary CPU general-purpose register settings
   x0 = 0 (reserved for future use)
-- 
cgit 


From a861389a9f074d82081d0c7fbf30280a232c90d0 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 9 Oct 2013 16:12:37 +0300
Subject: ARM: OMAP4: use CLK_SET_RATE_PARENT for dss_dss_clk

Set CLK_SET_RATE_PARENT flag for dss_dss_clk so that the DSS's fclk can
be configured without the need to get the parent of the fclk.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/cclock44xx_data.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-omap2/cclock44xx_data.c b/arch/arm/mach-omap2/cclock44xx_data.c
index 1d5b5290d2af..a27a0af669ab 100644
--- a/arch/arm/mach-omap2/cclock44xx_data.c
+++ b/arch/arm/mach-omap2/cclock44xx_data.c
@@ -830,7 +830,8 @@ DEFINE_CLK_GATE(dss_tv_clk, "extalt_clkin_ck", &extalt_clkin_ck, 0x0,
 		OMAP4430_CM_DSS_DSS_CLKCTRL,
 		OMAP4430_OPTFCLKEN_TV_CLK_SHIFT, 0x0, NULL);
 
-DEFINE_CLK_GATE(dss_dss_clk, "dpll_per_m5x2_ck", &dpll_per_m5x2_ck, 0x0,
+DEFINE_CLK_GATE(dss_dss_clk, "dpll_per_m5x2_ck", &dpll_per_m5x2_ck,
+		CLK_SET_RATE_PARENT,
 		OMAP4430_CM_DSS_DSS_CLKCTRL, OMAP4430_OPTFCLKEN_DSSCLK_SHIFT,
 		0x0, NULL);
 
-- 
cgit 


From 262c2c9d06585fb0ffc84da18e0f747836ce8baf Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 9 Oct 2013 16:12:38 +0300
Subject: ARM: OMAP3: use CLK_SET_RATE_PARENT for dss clocks

Set CLK_SET_RATE_PARENT flag for dss1_alwon_fck_3430es2,
dss1_alwon_fck_3430es1 and dpll4_m4x2_ck so that the DSS's fclk can be
configured without the need to get the parent's parent of the fclk.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/cclock3xxx_data.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-omap2/cclock3xxx_data.c b/arch/arm/mach-omap2/cclock3xxx_data.c
index 334b76745900..a51dd75a8eaa 100644
--- a/arch/arm/mach-omap2/cclock3xxx_data.c
+++ b/arch/arm/mach-omap2/cclock3xxx_data.c
@@ -869,7 +869,8 @@ static struct clk_hw_omap dpll4_m4x2_ck_hw = {
 	.clkdm_name	= "dpll4_clkdm",
 };
 
-DEFINE_STRUCT_CLK(dpll4_m4x2_ck, dpll4_m4x2_ck_parent_names, dpll4_m5x2_ck_ops);
+DEFINE_STRUCT_CLK_FLAGS(dpll4_m4x2_ck, dpll4_m4x2_ck_parent_names,
+		dpll4_m5x2_ck_ops, CLK_SET_RATE_PARENT);
 
 static struct clk dpll4_m4x2_ck_3630 = {
 	.name		= "dpll4_m4x2_ck",
@@ -877,6 +878,7 @@ static struct clk dpll4_m4x2_ck_3630 = {
 	.parent_names	= dpll4_m4x2_ck_parent_names,
 	.num_parents	= ARRAY_SIZE(dpll4_m4x2_ck_parent_names),
 	.ops		= &dpll4_m5x2_ck_3630_ops,
+	.flags		= CLK_SET_RATE_PARENT,
 };
 
 DEFINE_CLK_DIVIDER(dpll4_m6_ck, "dpll4_ck", &dpll4_ck, 0x0,
@@ -968,8 +970,9 @@ static struct clk_hw_omap dss1_alwon_fck_3430es1_hw = {
 	.clkdm_name	= "dss_clkdm",
 };
 
-DEFINE_STRUCT_CLK(dss1_alwon_fck_3430es1, dss1_alwon_fck_3430es1_parent_names,
-		  aes2_ick_ops);
+DEFINE_STRUCT_CLK_FLAGS(dss1_alwon_fck_3430es1,
+		dss1_alwon_fck_3430es1_parent_names, aes2_ick_ops,
+		CLK_SET_RATE_PARENT);
 
 static struct clk dss1_alwon_fck_3430es2;
 
@@ -983,8 +986,9 @@ static struct clk_hw_omap dss1_alwon_fck_3430es2_hw = {
 	.clkdm_name	= "dss_clkdm",
 };
 
-DEFINE_STRUCT_CLK(dss1_alwon_fck_3430es2, dss1_alwon_fck_3430es1_parent_names,
-		  aes2_ick_ops);
+DEFINE_STRUCT_CLK_FLAGS(dss1_alwon_fck_3430es2,
+		dss1_alwon_fck_3430es1_parent_names, aes2_ick_ops,
+		CLK_SET_RATE_PARENT);
 
 static struct clk dss2_alwon_fck;
 
-- 
cgit 


From 4ff7e3b65c8e1d8062365296b738fd262cfc2e9c Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 9 Oct 2013 16:12:39 +0300
Subject: ARM: OMAP3: fix dpll4_m3_ck and dpll4_m4_ck dividers

dpll4_m3_ck and dpll4_m4_ck have divider bit fields which are 6 bits
wide. However, only values from 1 to 32 are allowed. This means we have
to add a divider tables and list the dividers explicitly.

I believe the same issue is there for other dpll4_mx_ck clocks, but as
I'm not familiar with them, I didn't touch them.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
---
 arch/arm/mach-omap2/cclock3xxx_data.c | 44 +++++++++++++++++++++++++++++++----
 1 file changed, 40 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-omap2/cclock3xxx_data.c b/arch/arm/mach-omap2/cclock3xxx_data.c
index a51dd75a8eaa..e94d63582126 100644
--- a/arch/arm/mach-omap2/cclock3xxx_data.c
+++ b/arch/arm/mach-omap2/cclock3xxx_data.c
@@ -381,6 +381,42 @@ static struct clk_hw_omap dpll4_ck_hw = {
 
 DEFINE_STRUCT_CLK(dpll4_ck, dpll3_ck_parent_names, dpll4_ck_ops);
 
+static const struct clk_div_table dpll4_mx_ck_div_table[] = {
+	{ .div = 1, .val = 1 },
+	{ .div = 2, .val = 2 },
+	{ .div = 3, .val = 3 },
+	{ .div = 4, .val = 4 },
+	{ .div = 5, .val = 5 },
+	{ .div = 6, .val = 6 },
+	{ .div = 7, .val = 7 },
+	{ .div = 8, .val = 8 },
+	{ .div = 9, .val = 9 },
+	{ .div = 10, .val = 10 },
+	{ .div = 11, .val = 11 },
+	{ .div = 12, .val = 12 },
+	{ .div = 13, .val = 13 },
+	{ .div = 14, .val = 14 },
+	{ .div = 15, .val = 15 },
+	{ .div = 16, .val = 16 },
+	{ .div = 17, .val = 17 },
+	{ .div = 18, .val = 18 },
+	{ .div = 19, .val = 19 },
+	{ .div = 20, .val = 20 },
+	{ .div = 21, .val = 21 },
+	{ .div = 22, .val = 22 },
+	{ .div = 23, .val = 23 },
+	{ .div = 24, .val = 24 },
+	{ .div = 25, .val = 25 },
+	{ .div = 26, .val = 26 },
+	{ .div = 27, .val = 27 },
+	{ .div = 28, .val = 28 },
+	{ .div = 29, .val = 29 },
+	{ .div = 30, .val = 30 },
+	{ .div = 31, .val = 31 },
+	{ .div = 32, .val = 32 },
+	{ .div = 0 },
+};
+
 DEFINE_CLK_DIVIDER(dpll4_m5_ck, "dpll4_ck", &dpll4_ck, 0x0,
 		   OMAP_CM_REGADDR(OMAP3430_CAM_MOD, CM_CLKSEL),
 		   OMAP3430_CLKSEL_CAM_SHIFT, OMAP3630_CLKSEL_CAM_WIDTH,
@@ -524,10 +560,10 @@ static const struct clksel_rate clkout2_src_54m_rates[] = {
 	{ .div = 0 }
 };
 
-DEFINE_CLK_DIVIDER(dpll4_m3_ck, "dpll4_ck", &dpll4_ck, 0x0,
+DEFINE_CLK_DIVIDER_TABLE(dpll4_m3_ck, "dpll4_ck", &dpll4_ck, 0x0,
 		   OMAP_CM_REGADDR(OMAP3430_DSS_MOD, CM_CLKSEL),
 		   OMAP3430_CLKSEL_TV_SHIFT, OMAP3630_CLKSEL_TV_WIDTH,
-		   CLK_DIVIDER_ONE_BASED, NULL);
+		   0, dpll4_mx_ck_div_table, NULL);
 
 static struct clk dpll4_m3x2_ck;
 
@@ -847,10 +883,10 @@ static struct clk dpll3_m3x2_ck_3630 = {
 
 DEFINE_CLK_FIXED_FACTOR(dpll3_x2_ck, "dpll3_ck", &dpll3_ck, 0x0, 2, 1);
 
-DEFINE_CLK_DIVIDER(dpll4_m4_ck, "dpll4_ck", &dpll4_ck, 0x0,
+DEFINE_CLK_DIVIDER_TABLE(dpll4_m4_ck, "dpll4_ck", &dpll4_ck, 0x0,
 		   OMAP_CM_REGADDR(OMAP3430_DSS_MOD, CM_CLKSEL),
 		   OMAP3430_CLKSEL_DSS1_SHIFT, OMAP3630_CLKSEL_DSS1_WIDTH,
-		   CLK_DIVIDER_ONE_BASED, NULL);
+		   0, dpll4_mx_ck_div_table, NULL);
 
 static struct clk dpll4_m4x2_ck;
 
-- 
cgit 


From e344e52c7c6d6ab277daa83211972f801af2f9af Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Tue, 10 Sep 2013 15:35:39 +0200
Subject: s390/bitops: make use of interlocked-access facility 1 instructions

Make use of the interlocked-access facility 1 that got added with the
z196 architecure.
This facilility added new instructions which can atomically update a
storage location without a compare-and-swap loop. E.g. setting a bit
within a "long" can be done with a single instruction.

The size of the kernel image gets ~30kb smaller. Considering that there
are appr. 1900 bitops call sites this means that each one saves about
15-16 bytes per call site which is expected.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/bitops.h | 66 +++++++++++++++++++++++++++++++-----------
 1 file changed, 49 insertions(+), 17 deletions(-)

diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index 10135a38673c..bb26481a723f 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -65,7 +65,10 @@ extern const char _sb_findmap[];
 #define __BITOPS_AND		"nr"
 #define __BITOPS_XOR		"xr"
 
-#define __BITOPS_LOOP(__old, __new, __addr, __val, __op_string)	\
+#define __BITOPS_LOOP(__addr, __val, __op_string)		\
+({								\
+	unsigned long __old, __new;				\
+								\
 	asm volatile(						\
 		"	l	%0,%2\n"			\
 		"0:	lr	%1,%0\n"			\
@@ -75,15 +78,40 @@ extern const char _sb_findmap[];
 		: "=&d" (__old), "=&d" (__new),			\
 		  "=Q" (*(unsigned long *) __addr)		\
 		: "d" (__val), "Q" (*(unsigned long *) __addr)	\
-		: "cc");
+		: "cc");					\
+	__old;							\
+})
 
 #else /* CONFIG_64BIT */
 
+#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
+
+#define __BITOPS_OR		"laog"
+#define __BITOPS_AND		"lang"
+#define __BITOPS_XOR		"laxg"
+
+#define __BITOPS_LOOP(__addr, __val, __op_string)		\
+({								\
+	unsigned long __old;					\
+								\
+	asm volatile(						\
+		__op_string "	%0,%2,%1\n"			\
+		: "=d" (__old),	"+Q" (*(unsigned long *)__addr)	\
+		: "d" (__val)					\
+		: "cc");					\
+	__old;							\
+})
+
+#else /* CONFIG_HAVE_MARCH_Z196_FEATURES */
+
 #define __BITOPS_OR		"ogr"
 #define __BITOPS_AND		"ngr"
 #define __BITOPS_XOR		"xgr"
 
-#define __BITOPS_LOOP(__old, __new, __addr, __val, __op_string)	\
+#define __BITOPS_LOOP(__addr, __val, __op_string)		\
+({								\
+	unsigned long __old, __new;				\
+								\
 	asm volatile(						\
 		"	lg	%0,%2\n"			\
 		"0:	lgr	%1,%0\n"			\
@@ -93,7 +121,11 @@ extern const char _sb_findmap[];
 		: "=&d" (__old), "=&d" (__new),			\
 		  "=Q" (*(unsigned long *) __addr)		\
 		: "d" (__val), "Q" (*(unsigned long *) __addr)	\
-		: "cc");
+		: "cc");					\
+	__old;							\
+})
+
+#endif /* CONFIG_HAVE_MARCH_Z196_FEATURES */
 
 #endif /* CONFIG_64BIT */
 
@@ -105,7 +137,7 @@ extern const char _sb_findmap[];
  */
 static inline void set_bit_cs(unsigned long nr, volatile unsigned long *ptr)
 {
-        unsigned long addr, old, new, mask;
+	unsigned long addr, mask;
 
 	addr = (unsigned long) ptr;
 	/* calculate address for CS */
@@ -113,7 +145,7 @@ static inline void set_bit_cs(unsigned long nr, volatile unsigned long *ptr)
 	/* make OR mask */
 	mask = 1UL << (nr & (BITS_PER_LONG - 1));
 	/* Do the atomic update. */
-	__BITOPS_LOOP(old, new, addr, mask, __BITOPS_OR);
+	__BITOPS_LOOP(addr, mask, __BITOPS_OR);
 }
 
 /*
@@ -121,7 +153,7 @@ static inline void set_bit_cs(unsigned long nr, volatile unsigned long *ptr)
  */
 static inline void clear_bit_cs(unsigned long nr, volatile unsigned long *ptr)
 {
-        unsigned long addr, old, new, mask;
+	unsigned long addr, mask;
 
 	addr = (unsigned long) ptr;
 	/* calculate address for CS */
@@ -129,7 +161,7 @@ static inline void clear_bit_cs(unsigned long nr, volatile unsigned long *ptr)
 	/* make AND mask */
 	mask = ~(1UL << (nr & (BITS_PER_LONG - 1)));
 	/* Do the atomic update. */
-	__BITOPS_LOOP(old, new, addr, mask, __BITOPS_AND);
+	__BITOPS_LOOP(addr, mask, __BITOPS_AND);
 }
 
 /*
@@ -137,7 +169,7 @@ static inline void clear_bit_cs(unsigned long nr, volatile unsigned long *ptr)
  */
 static inline void change_bit_cs(unsigned long nr, volatile unsigned long *ptr)
 {
-        unsigned long addr, old, new, mask;
+	unsigned long addr, mask;
 
 	addr = (unsigned long) ptr;
 	/* calculate address for CS */
@@ -145,7 +177,7 @@ static inline void change_bit_cs(unsigned long nr, volatile unsigned long *ptr)
 	/* make XOR mask */
 	mask = 1UL << (nr & (BITS_PER_LONG - 1));
 	/* Do the atomic update. */
-	__BITOPS_LOOP(old, new, addr, mask, __BITOPS_XOR);
+	__BITOPS_LOOP(addr, mask, __BITOPS_XOR);
 }
 
 /*
@@ -154,7 +186,7 @@ static inline void change_bit_cs(unsigned long nr, volatile unsigned long *ptr)
 static inline int
 test_and_set_bit_cs(unsigned long nr, volatile unsigned long *ptr)
 {
-        unsigned long addr, old, new, mask;
+	unsigned long addr, old, mask;
 
 	addr = (unsigned long) ptr;
 	/* calculate address for CS */
@@ -162,7 +194,7 @@ test_and_set_bit_cs(unsigned long nr, volatile unsigned long *ptr)
 	/* make OR/test mask */
 	mask = 1UL << (nr & (BITS_PER_LONG - 1));
 	/* Do the atomic update. */
-	__BITOPS_LOOP(old, new, addr, mask, __BITOPS_OR);
+	old = __BITOPS_LOOP(addr, mask, __BITOPS_OR);
 	barrier();
 	return (old & mask) != 0;
 }
@@ -173,7 +205,7 @@ test_and_set_bit_cs(unsigned long nr, volatile unsigned long *ptr)
 static inline int
 test_and_clear_bit_cs(unsigned long nr, volatile unsigned long *ptr)
 {
-        unsigned long addr, old, new, mask;
+	unsigned long addr, old, mask;
 
 	addr = (unsigned long) ptr;
 	/* calculate address for CS */
@@ -181,9 +213,9 @@ test_and_clear_bit_cs(unsigned long nr, volatile unsigned long *ptr)
 	/* make AND/test mask */
 	mask = ~(1UL << (nr & (BITS_PER_LONG - 1)));
 	/* Do the atomic update. */
-	__BITOPS_LOOP(old, new, addr, mask, __BITOPS_AND);
+	old = __BITOPS_LOOP(addr, mask, __BITOPS_AND);
 	barrier();
-	return (old ^ new) != 0;
+	return (old & ~mask) != 0;
 }
 
 /*
@@ -192,7 +224,7 @@ test_and_clear_bit_cs(unsigned long nr, volatile unsigned long *ptr)
 static inline int
 test_and_change_bit_cs(unsigned long nr, volatile unsigned long *ptr)
 {
-        unsigned long addr, old, new, mask;
+	unsigned long addr, old, mask;
 
 	addr = (unsigned long) ptr;
 	/* calculate address for CS */
@@ -200,7 +232,7 @@ test_and_change_bit_cs(unsigned long nr, volatile unsigned long *ptr)
 	/* make XOR/test mask */
 	mask = 1UL << (nr & (BITS_PER_LONG - 1));
 	/* Do the atomic update. */
-	__BITOPS_LOOP(old, new, addr, mask, __BITOPS_XOR);
+	old = __BITOPS_LOOP(addr, mask, __BITOPS_XOR);
 	barrier();
 	return (old & mask) != 0;
 }
-- 
cgit 


From faf499dfccfd88d842164078917e7b6aae9a3cdb Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Wed, 11 Sep 2013 09:29:33 +0200
Subject: s390: always set -march compiler option

Currently we only set the -march compiler option if the kbuild
system figured out that the compiler actually supports the selected
architecture (cc-option test).

In result this means that no -march compiler option is set when an
unsupported cpu architecture of the current compiler is selected.
The kernel compile will afterwards succeed but with the default
architecture instead of the (unsupported) selected one.

Change this behaviour, so compiles will fail if the compiler does
not support the selected cpu architecture.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/Makefile | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index a7d68a467ce8..ecc9d4f73cc6 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -35,13 +35,13 @@ endif
 
 export LD_BFD
 
-cflags-$(CONFIG_MARCH_G5)   += $(call cc-option,-march=g5)
-cflags-$(CONFIG_MARCH_Z900) += $(call cc-option,-march=z900)
-cflags-$(CONFIG_MARCH_Z990) += $(call cc-option,-march=z990)
-cflags-$(CONFIG_MARCH_Z9_109) += $(call cc-option,-march=z9-109)
-cflags-$(CONFIG_MARCH_Z10) += $(call cc-option,-march=z10)
-cflags-$(CONFIG_MARCH_Z196) += $(call cc-option,-march=z196)
-cflags-$(CONFIG_MARCH_ZEC12) += $(call cc-option,-march=zEC12)
+cflags-$(CONFIG_MARCH_G5)     += -march=g5
+cflags-$(CONFIG_MARCH_Z900)   += -march=z900
+cflags-$(CONFIG_MARCH_Z990)   += -march=z990
+cflags-$(CONFIG_MARCH_Z9_109) += -march=z9-109
+cflags-$(CONFIG_MARCH_Z10)    += -march=z10
+cflags-$(CONFIG_MARCH_Z196)   += -march=z196
+cflags-$(CONFIG_MARCH_ZEC12)  += -march=zEC12
 
 #KBUILD_IMAGE is necessary for make rpm
 KBUILD_IMAGE	:=arch/s390/boot/image
-- 
cgit 


From fcd05b50fca44be3f96f8a17c5cce778669c29e7 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 2 Sep 2013 10:31:11 +0200
Subject: s390/kprobes: have more correct if statement in s390_get_insn_slot()

When checking the insn address wether it is a kernel image or module
address it should be an if-else-if statement not two independent if
statements.
This doesn't really fix a bug, but matches s390_free_insn_slot().

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/kprobes.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c
index d86e64eddb42..9f99ad7fc212 100644
--- a/arch/s390/kernel/kprobes.c
+++ b/arch/s390/kernel/kprobes.c
@@ -252,7 +252,7 @@ static int __kprobes s390_get_insn_slot(struct kprobe *p)
 	p->ainsn.insn = NULL;
 	if (is_kernel_addr(p->addr))
 		p->ainsn.insn = get_dmainsn_slot();
-	if (is_module_addr(p->addr))
+	else if (is_module_addr(p->addr))
 		p->ainsn.insn = get_insn_slot();
 	return p->ainsn.insn ? 0 : -ENOMEM;
 }
-- 
cgit 


From 86d51bc31fabd3782a99375b6848c5c667e72605 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Wed, 11 Sep 2013 14:28:47 +0200
Subject: s390/atomic: implement atomic_sub_return() with atomic_add_return()

Get rid of the own atomic_sub_return() implementation. Otherwise we can't
make use of the interlocked-access facility 1 instructions for
atomic_sub_return(), since there is no "load and subtract" instruction
available.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/atomic.h | 23 ++---------------------
 1 file changed, 2 insertions(+), 21 deletions(-)

diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index c797832daa5f..fea2c8887da5 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -60,11 +60,7 @@ static inline int atomic_add_return(int i, atomic_t *v)
 #define atomic_inc(_v)			atomic_add_return(1, _v)
 #define atomic_inc_return(_v)		atomic_add_return(1, _v)
 #define atomic_inc_and_test(_v)		(atomic_add_return(1, _v) == 0)
-
-static inline int atomic_sub_return(int i, atomic_t *v)
-{
-	return __CS_LOOP(v, i, "sr");
-}
+#define atomic_sub_return(_i, _v)	atomic_add_return(-(int)(_i), _v)
 #define atomic_sub(_i, _v)		atomic_sub_return(_i, _v)
 #define atomic_sub_and_test(_i, _v)	(atomic_sub_return(_i, _v) == 0)
 #define atomic_dec(_v)			atomic_sub_return(1, _v)
@@ -152,11 +148,6 @@ static inline long long atomic64_add_return(long long i, atomic64_t *v)
 	return __CSG_LOOP(v, i, "agr");
 }
 
-static inline long long atomic64_sub_return(long long i, atomic64_t *v)
-{
-	return __CSG_LOOP(v, i, "sgr");
-}
-
 static inline void atomic64_clear_mask(unsigned long mask, atomic64_t *v)
 {
 	__CSG_LOOP(v, ~mask, "ngr");
@@ -248,17 +239,6 @@ static inline long long atomic64_add_return(long long i, atomic64_t *v)
 	return new;
 }
 
-static inline long long atomic64_sub_return(long long i, atomic64_t *v)
-{
-	long long old, new;
-
-	do {
-		old = atomic64_read(v);
-		new = old - i;
-	} while (atomic64_cmpxchg(v, old, new) != old);
-	return new;
-}
-
 static inline void atomic64_set_mask(unsigned long long mask, atomic64_t *v)
 {
 	long long old, new;
@@ -319,6 +299,7 @@ static inline long long atomic64_dec_if_positive(atomic64_t *v)
 #define atomic64_inc(_v)		atomic64_add_return(1, _v)
 #define atomic64_inc_return(_v)		atomic64_add_return(1, _v)
 #define atomic64_inc_and_test(_v)	(atomic64_add_return(1, _v) == 0)
+#define atomic64_sub_return(_i, _v)	atomic64_add_return(-(long long)(_i), _v)
 #define atomic64_sub(_i, _v)		atomic64_sub_return(_i, _v)
 #define atomic64_sub_and_test(_i, _v)	(atomic64_sub_return(_i, _v) == 0)
 #define atomic64_dec(_v)		atomic64_sub_return(1, _v)
-- 
cgit 


From 75287430b4af7c22080d02b8cfc8344c4ecafc21 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Wed, 11 Sep 2013 16:34:04 +0200
Subject: s390/atomic: make use of interlocked-access facility 1 instructions

Same as for bitops: make use of the interlocked-access facility 1
instructions which allow to atomically update storage locations
without a compare-and-swap loop.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/atomic.h | 77 +++++++++++++++++++++++++++++++++++-------
 1 file changed, 65 insertions(+), 12 deletions(-)

diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index fea2c8887da5..823ec99cf426 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -19,7 +19,31 @@
 
 #define ATOMIC_INIT(i)  { (i) }
 
-#define __CS_LOOP(ptr, op_val, op_string) ({				\
+#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
+
+#define __ATOMIC_OR	"lao"
+#define __ATOMIC_AND	"lan"
+#define __ATOMIC_ADD	"laa"
+
+#define __ATOMIC_LOOP(ptr, op_val, op_string)				\
+({									\
+	int old_val;							\
+	asm volatile(							\
+		op_string "	%0,%2,%1\n"				\
+		: "=d" (old_val), "+Q" (((atomic_t *)(ptr))->counter)	\
+		: "d" (op_val)						\
+		: "cc", "memory");					\
+	old_val;							\
+})
+
+#else /* CONFIG_HAVE_MARCH_Z196_FEATURES */
+
+#define __ATOMIC_OR	"or"
+#define __ATOMIC_AND	"nr"
+#define __ATOMIC_ADD	"ar"
+
+#define __ATOMIC_LOOP(ptr, op_val, op_string)				\
+({									\
 	int old_val, new_val;						\
 	asm volatile(							\
 		"	l	%0,%2\n"				\
@@ -31,9 +55,11 @@
 		  "=Q" (((atomic_t *)(ptr))->counter)			\
 		: "d" (op_val),	 "Q" (((atomic_t *)(ptr))->counter)	\
 		: "cc", "memory");					\
-	new_val;							\
+	old_val;							\
 })
 
+#endif /* CONFIG_HAVE_MARCH_Z196_FEATURES */
+
 static inline int atomic_read(const atomic_t *v)
 {
 	int c;
@@ -53,8 +79,9 @@ static inline void atomic_set(atomic_t *v, int i)
 
 static inline int atomic_add_return(int i, atomic_t *v)
 {
-	return __CS_LOOP(v, i, "ar");
+	return __ATOMIC_LOOP(v, i, __ATOMIC_ADD) + i;
 }
+
 #define atomic_add(_i, _v)		atomic_add_return(_i, _v)
 #define atomic_add_negative(_i, _v)	(atomic_add_return(_i, _v) < 0)
 #define atomic_inc(_v)			atomic_add_return(1, _v)
@@ -69,12 +96,12 @@ static inline int atomic_add_return(int i, atomic_t *v)
 
 static inline void atomic_clear_mask(unsigned long mask, atomic_t *v)
 {
-	__CS_LOOP(v, ~mask, "nr");
+	__ATOMIC_LOOP(v, ~mask, __ATOMIC_AND);
 }
 
 static inline void atomic_set_mask(unsigned long mask, atomic_t *v)
 {
-	__CS_LOOP(v, mask, "or");
+	__ATOMIC_LOOP(v, mask, __ATOMIC_OR);
 }
 
 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
@@ -105,13 +132,37 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
 }
 
 
-#undef __CS_LOOP
+#undef __ATOMIC_LOOP
 
 #define ATOMIC64_INIT(i)  { (i) }
 
 #ifdef CONFIG_64BIT
 
-#define __CSG_LOOP(ptr, op_val, op_string) ({				\
+#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
+
+#define __ATOMIC64_OR	"laog"
+#define __ATOMIC64_AND	"lang"
+#define __ATOMIC64_ADD	"laag"
+
+#define __ATOMIC64_LOOP(ptr, op_val, op_string)				\
+({									\
+	long long old_val;						\
+	asm volatile(							\
+		op_string "	%0,%2,%1\n"				\
+		: "=d" (old_val), "+Q" (((atomic_t *)(ptr))->counter)	\
+		: "d" (op_val)						\
+		: "cc", "memory");					\
+	old_val;							\
+})
+
+#else /* CONFIG_HAVE_MARCH_Z196_FEATURES */
+
+#define __ATOMIC64_OR	"ogr"
+#define __ATOMIC64_AND	"ngr"
+#define __ATOMIC64_ADD	"agr"
+
+#define __ATOMIC64_LOOP(ptr, op_val, op_string)				\
+({									\
 	long long old_val, new_val;					\
 	asm volatile(							\
 		"	lg	%0,%2\n"				\
@@ -123,9 +174,11 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
 		  "=Q" (((atomic_t *)(ptr))->counter)			\
 		: "d" (op_val),	"Q" (((atomic_t *)(ptr))->counter)	\
 		: "cc", "memory");					\
-	new_val;							\
+	old_val;							\
 })
 
+#endif /* CONFIG_HAVE_MARCH_Z196_FEATURES */
+
 static inline long long atomic64_read(const atomic64_t *v)
 {
 	long long c;
@@ -145,17 +198,17 @@ static inline void atomic64_set(atomic64_t *v, long long i)
 
 static inline long long atomic64_add_return(long long i, atomic64_t *v)
 {
-	return __CSG_LOOP(v, i, "agr");
+	return __ATOMIC64_LOOP(v, i, __ATOMIC64_ADD) + i;
 }
 
 static inline void atomic64_clear_mask(unsigned long mask, atomic64_t *v)
 {
-	__CSG_LOOP(v, ~mask, "ngr");
+	__ATOMIC64_LOOP(v, ~mask, __ATOMIC64_AND);
 }
 
 static inline void atomic64_set_mask(unsigned long mask, atomic64_t *v)
 {
-	__CSG_LOOP(v, mask, "ogr");
+	__ATOMIC64_LOOP(v, mask, __ATOMIC64_OR);
 }
 
 #define atomic64_xchg(v, new) (xchg(&((v)->counter), new))
@@ -171,7 +224,7 @@ static inline long long atomic64_cmpxchg(atomic64_t *v,
 	return old;
 }
 
-#undef __CSG_LOOP
+#undef __ATOMIC64_LOOP
 
 #else /* CONFIG_64BIT */
 
-- 
cgit 


From f616d6760716f702b3aa459fd20c8d8cce693abd Mon Sep 17 00:00:00 2001
From: "Suzuki K. Poulose" <suzuki@in.ibm.com>
Date: Thu, 29 Aug 2013 14:34:10 +0530
Subject: s390/dis: rename structures for unique types

Rename 'insn' and 'operand' structures to more canonical names
to avoid conflicts.

struct insn represents information about an instruction, including
the mnemonics, format and opcode.

struct operand represents the 'properties' and information on howto
interpret the operand value and doesn't contain the value.

We rename these structures for avoiding a global conflict.

i.e,

1,$s/struct insn/struct s390_insn/g
1,$s/struct operand/struct s390_operand/g

Signed-off-by: Suzuki K Poulose <suzuki@in.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/dis.c | 56 +++++++++++++++++++++++++-------------------------
 1 file changed, 28 insertions(+), 28 deletions(-)

diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c
index be87d3e05a5b..5fb278eb5e46 100644
--- a/arch/s390/kernel/dis.c
+++ b/arch/s390/kernel/dis.c
@@ -155,19 +155,19 @@ enum {
 	INSTR_S_00, INSTR_S_RD,
 };
 
-struct operand {
+struct s390_operand {
 	int bits;		/* The number of bits in the operand. */
 	int shift;		/* The number of bits to shift. */
 	int flags;		/* One bit syntax flags. */
 };
 
-struct insn {
+struct s390_insn {
 	const char name[5];
 	unsigned char opfrag;
 	unsigned char format;
 };
 
-static const struct operand operands[] =
+static const struct s390_operand operands[] =
 {
 	[UNUSED]  = { 0, 0, 0 },
 	[R_8]	 = {  4,  8, OPERAND_GPR },
@@ -479,7 +479,7 @@ static char *long_insn_name[] = {
 	[LONG_INSN_PCISTB] = "pcistb",
 };
 
-static struct insn opcode[] = {
+static struct s390_insn opcode[] = {
 #ifdef CONFIG_64BIT
 	{ "bprp", 0xc5, INSTR_MII_UPI },
 	{ "bpp", 0xc7, INSTR_SMI_U0RDP },
@@ -668,7 +668,7 @@ static struct insn opcode[] = {
 	{ "", 0, INSTR_INVALID }
 };
 
-static struct insn opcode_01[] = {
+static struct s390_insn opcode_01[] = {
 #ifdef CONFIG_64BIT
 	{ "ptff", 0x04, INSTR_E },
 	{ "pfpo", 0x0a, INSTR_E },
@@ -684,7 +684,7 @@ static struct insn opcode_01[] = {
 	{ "", 0, INSTR_INVALID }
 };
 
-static struct insn opcode_a5[] = {
+static struct s390_insn opcode_a5[] = {
 #ifdef CONFIG_64BIT
 	{ "iihh", 0x00, INSTR_RI_RU },
 	{ "iihl", 0x01, INSTR_RI_RU },
@@ -706,7 +706,7 @@ static struct insn opcode_a5[] = {
 	{ "", 0, INSTR_INVALID }
 };
 
-static struct insn opcode_a7[] = {
+static struct s390_insn opcode_a7[] = {
 #ifdef CONFIG_64BIT
 	{ "tmhh", 0x02, INSTR_RI_RU },
 	{ "tmhl", 0x03, INSTR_RI_RU },
@@ -728,7 +728,7 @@ static struct insn opcode_a7[] = {
 	{ "", 0, INSTR_INVALID }
 };
 
-static struct insn opcode_aa[] = {
+static struct s390_insn opcode_aa[] = {
 #ifdef CONFIG_64BIT
 	{ { 0, LONG_INSN_RINEXT }, 0x00, INSTR_RI_RI },
 	{ "rion", 0x01, INSTR_RI_RI },
@@ -739,7 +739,7 @@ static struct insn opcode_aa[] = {
 	{ "", 0, INSTR_INVALID }
 };
 
-static struct insn opcode_b2[] = {
+static struct s390_insn opcode_b2[] = {
 #ifdef CONFIG_64BIT
 	{ "stckf", 0x7c, INSTR_S_RD },
 	{ "lpp", 0x80, INSTR_S_RD },
@@ -851,7 +851,7 @@ static struct insn opcode_b2[] = {
 	{ "", 0, INSTR_INVALID }
 };
 
-static struct insn opcode_b3[] = {
+static struct s390_insn opcode_b3[] = {
 #ifdef CONFIG_64BIT
 	{ "maylr", 0x38, INSTR_RRF_F0FF },
 	{ "mylr", 0x39, INSTR_RRF_F0FF },
@@ -1034,7 +1034,7 @@ static struct insn opcode_b3[] = {
 	{ "", 0, INSTR_INVALID }
 };
 
-static struct insn opcode_b9[] = {
+static struct s390_insn opcode_b9[] = {
 #ifdef CONFIG_64BIT
 	{ "lpgr", 0x00, INSTR_RRE_RR },
 	{ "lngr", 0x01, INSTR_RRE_RR },
@@ -1167,7 +1167,7 @@ static struct insn opcode_b9[] = {
 	{ "", 0, INSTR_INVALID }
 };
 
-static struct insn opcode_c0[] = {
+static struct s390_insn opcode_c0[] = {
 #ifdef CONFIG_64BIT
 	{ "lgfi", 0x01, INSTR_RIL_RI },
 	{ "xihf", 0x06, INSTR_RIL_RU },
@@ -1187,7 +1187,7 @@ static struct insn opcode_c0[] = {
 	{ "", 0, INSTR_INVALID }
 };
 
-static struct insn opcode_c2[] = {
+static struct s390_insn opcode_c2[] = {
 #ifdef CONFIG_64BIT
 	{ "msgfi", 0x00, INSTR_RIL_RI },
 	{ "msfi", 0x01, INSTR_RIL_RI },
@@ -1205,7 +1205,7 @@ static struct insn opcode_c2[] = {
 	{ "", 0, INSTR_INVALID }
 };
 
-static struct insn opcode_c4[] = {
+static struct s390_insn opcode_c4[] = {
 #ifdef CONFIG_64BIT
 	{ "llhrl", 0x02, INSTR_RIL_RP },
 	{ "lghrl", 0x04, INSTR_RIL_RP },
@@ -1222,7 +1222,7 @@ static struct insn opcode_c4[] = {
 	{ "", 0, INSTR_INVALID }
 };
 
-static struct insn opcode_c6[] = {
+static struct s390_insn opcode_c6[] = {
 #ifdef CONFIG_64BIT
 	{ "exrl", 0x00, INSTR_RIL_RP },
 	{ "pfdrl", 0x02, INSTR_RIL_UP },
@@ -1240,7 +1240,7 @@ static struct insn opcode_c6[] = {
 	{ "", 0, INSTR_INVALID }
 };
 
-static struct insn opcode_c8[] = {
+static struct s390_insn opcode_c8[] = {
 #ifdef CONFIG_64BIT
 	{ "mvcos", 0x00, INSTR_SSF_RRDRD },
 	{ "ectg", 0x01, INSTR_SSF_RRDRD },
@@ -1251,7 +1251,7 @@ static struct insn opcode_c8[] = {
 	{ "", 0, INSTR_INVALID }
 };
 
-static struct insn opcode_cc[] = {
+static struct s390_insn opcode_cc[] = {
 #ifdef CONFIG_64BIT
 	{ "brcth", 0x06, INSTR_RIL_RP },
 	{ "aih", 0x08, INSTR_RIL_RI },
@@ -1263,7 +1263,7 @@ static struct insn opcode_cc[] = {
 	{ "", 0, INSTR_INVALID }
 };
 
-static struct insn opcode_e3[] = {
+static struct s390_insn opcode_e3[] = {
 #ifdef CONFIG_64BIT
 	{ "ltg", 0x02, INSTR_RXY_RRRD },
 	{ "lrag", 0x03, INSTR_RXY_RRRD },
@@ -1369,7 +1369,7 @@ static struct insn opcode_e3[] = {
 	{ "", 0, INSTR_INVALID }
 };
 
-static struct insn opcode_e5[] = {
+static struct s390_insn opcode_e5[] = {
 #ifdef CONFIG_64BIT
 	{ "strag", 0x02, INSTR_SSE_RDRD },
 	{ "mvhhi", 0x44, INSTR_SIL_RDI },
@@ -1391,7 +1391,7 @@ static struct insn opcode_e5[] = {
 	{ "", 0, INSTR_INVALID }
 };
 
-static struct insn opcode_eb[] = {
+static struct s390_insn opcode_eb[] = {
 #ifdef CONFIG_64BIT
 	{ "lmg", 0x04, INSTR_RSY_RRRD },
 	{ "srag", 0x0a, INSTR_RSY_RRRD },
@@ -1465,7 +1465,7 @@ static struct insn opcode_eb[] = {
 	{ "", 0, INSTR_INVALID }
 };
 
-static struct insn opcode_ec[] = {
+static struct s390_insn opcode_ec[] = {
 #ifdef CONFIG_64BIT
 	{ "brxhg", 0x44, INSTR_RIE_RRP },
 	{ "brxlg", 0x45, INSTR_RIE_RRP },
@@ -1504,7 +1504,7 @@ static struct insn opcode_ec[] = {
 	{ "", 0, INSTR_INVALID }
 };
 
-static struct insn opcode_ed[] = {
+static struct s390_insn opcode_ed[] = {
 #ifdef CONFIG_64BIT
 	{ "mayl", 0x38, INSTR_RXF_FRRDF },
 	{ "myl", 0x39, INSTR_RXF_FRRDF },
@@ -1572,7 +1572,7 @@ static struct insn opcode_ed[] = {
 
 /* Extracts an operand value from an instruction.  */
 static unsigned int extract_operand(unsigned char *code,
-				    const struct operand *operand)
+				    const struct s390_operand *operand)
 {
 	unsigned int val;
 	int bits;
@@ -1613,11 +1613,11 @@ static inline int insn_length(unsigned char code)
 	return ((((int) code + 64) >> 7) + 1) << 1;
 }
 
-static struct insn *find_insn(unsigned char *code)
+static struct s390_insn *find_insn(unsigned char *code)
 {
 	unsigned char opfrag = code[1];
 	unsigned char opmask;
-	struct insn *table;
+	struct s390_insn *table;
 
 	switch (code[0]) {
 	case 0x01:
@@ -1706,7 +1706,7 @@ static struct insn *find_insn(unsigned char *code)
  */
 int insn_to_mnemonic(unsigned char *instruction, char *buf, unsigned int len)
 {
-	struct insn *insn;
+	struct s390_insn *insn;
 
 	insn = find_insn(instruction);
 	if (!insn)
@@ -1722,9 +1722,9 @@ EXPORT_SYMBOL_GPL(insn_to_mnemonic);
 
 static int print_insn(char *buffer, unsigned char *code, unsigned long addr)
 {
-	struct insn *insn;
+	struct s390_insn *insn;
 	const unsigned char *ops;
-	const struct operand *operand;
+	const struct s390_operand *operand;
 	unsigned int value;
 	char separator;
 	char *ptr;
-- 
cgit 


From 648ae35c54b147c3b25d212f2936bb1cb91ea7d0 Mon Sep 17 00:00:00 2001
From: "Suzuki K. Poulose" <suzuki@in.ibm.com>
Date: Thu, 29 Aug 2013 14:35:48 +0530
Subject: s390/dis: move common definitions to a header file

The patch moves some of the definitions to a
header file. No functional changes involved.

I have retained the Copyright Statement from the
original file.

Signed-off-by: Suzuki K Poulose <suzuki@in.ibm.com>
[Heiko Carstens: rename s390-dis.h to dis.h]
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/dis.h | 42 ++++++++++++++++++++++++++++++++++++++++++
 arch/s390/kernel/dis.c      | 29 +----------------------------
 2 files changed, 43 insertions(+), 28 deletions(-)
 create mode 100644 arch/s390/include/asm/dis.h

diff --git a/arch/s390/include/asm/dis.h b/arch/s390/include/asm/dis.h
new file mode 100644
index 000000000000..6f73119ef27e
--- /dev/null
+++ b/arch/s390/include/asm/dis.h
@@ -0,0 +1,42 @@
+/*
+ * Disassemble s390 instructions.
+ *
+ * Copyright IBM Corp. 2007
+ * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
+ */
+
+#ifndef __ASM_S390_DIS_H__
+#define __ASM_S390_DIS_H__
+
+/* Type of operand */
+#define OPERAND_GPR	0x1	/* Operand printed as %rx */
+#define OPERAND_FPR	0x2	/* Operand printed as %fx */
+#define OPERAND_AR	0x4	/* Operand printed as %ax */
+#define OPERAND_CR	0x8	/* Operand printed as %cx */
+#define OPERAND_DISP	0x10	/* Operand printed as displacement */
+#define OPERAND_BASE	0x20	/* Operand printed as base register */
+#define OPERAND_INDEX	0x40	/* Operand printed as index register */
+#define OPERAND_PCREL	0x80	/* Operand printed as pc-relative symbol */
+#define OPERAND_SIGNED	0x100	/* Operand printed as signed value */
+#define OPERAND_LENGTH	0x200	/* Operand printed as length (+1) */
+
+
+struct s390_operand {
+	int bits;		/* The number of bits in the operand. */
+	int shift;		/* The number of bits to shift. */
+	int flags;		/* One bit syntax flags. */
+};
+
+struct s390_insn {
+	const char name[5];
+	unsigned char opfrag;
+	unsigned char format;
+};
+
+
+static inline int insn_length(unsigned char code)
+{
+	return ((((int) code + 64) >> 7) + 1) << 1;
+}
+
+#endif /* __ASM_S390_DIS_H__ */
diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c
index 5fb278eb5e46..ce554f3ec445 100644
--- a/arch/s390/kernel/dis.c
+++ b/arch/s390/kernel/dis.c
@@ -23,6 +23,7 @@
 #include <linux/kdebug.h>
 
 #include <asm/uaccess.h>
+#include <asm/dis.h>
 #include <asm/io.h>
 #include <linux/atomic.h>
 #include <asm/mathemu.h>
@@ -37,17 +38,6 @@
 #define ONELONG "%016lx: "
 #endif /* CONFIG_64BIT */
 
-#define OPERAND_GPR	0x1	/* Operand printed as %rx */
-#define OPERAND_FPR	0x2	/* Operand printed as %fx */
-#define OPERAND_AR	0x4	/* Operand printed as %ax */
-#define OPERAND_CR	0x8	/* Operand printed as %cx */
-#define OPERAND_DISP	0x10	/* Operand printed as displacement */
-#define OPERAND_BASE	0x20	/* Operand printed as base register */
-#define OPERAND_INDEX	0x40	/* Operand printed as index register */
-#define OPERAND_PCREL	0x80	/* Operand printed as pc-relative symbol */
-#define OPERAND_SIGNED	0x100	/* Operand printed as signed value */
-#define OPERAND_LENGTH	0x200	/* Operand printed as length (+1) */
-
 enum {
 	UNUSED,	/* Indicates the end of the operand list */
 	R_8,	/* GPR starting at position 8 */
@@ -155,18 +145,6 @@ enum {
 	INSTR_S_00, INSTR_S_RD,
 };
 
-struct s390_operand {
-	int bits;		/* The number of bits in the operand. */
-	int shift;		/* The number of bits to shift. */
-	int flags;		/* One bit syntax flags. */
-};
-
-struct s390_insn {
-	const char name[5];
-	unsigned char opfrag;
-	unsigned char format;
-};
-
 static const struct s390_operand operands[] =
 {
 	[UNUSED]  = { 0, 0, 0 },
@@ -1608,11 +1586,6 @@ static unsigned int extract_operand(unsigned char *code,
 	return val;
 }
 
-static inline int insn_length(unsigned char code)
-{
-	return ((((int) code + 64) >> 7) + 1) << 1;
-}
-
 static struct s390_insn *find_insn(unsigned char *code)
 {
 	unsigned char opfrag = code[1];
-- 
cgit 


From 0f20822a69148f53bbafbe6ee3d43e8eff0bad27 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Fri, 13 Sep 2013 13:36:25 +0200
Subject: s390/dis: move disassembler function prototypes to proper header file

Now that the in-kernel disassembler has an own header file move the
disassembler related function prototypes to that header file.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/dis.h       | 4 ++++
 arch/s390/include/asm/processor.h | 5 -----
 arch/s390/kernel/dumpstack.c      | 1 +
 arch/s390/kvm/trace.h             | 1 +
 arch/s390/net/bpf_jit_comp.c      | 2 +-
 5 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/arch/s390/include/asm/dis.h b/arch/s390/include/asm/dis.h
index 6f73119ef27e..4d0dffc68221 100644
--- a/arch/s390/include/asm/dis.h
+++ b/arch/s390/include/asm/dis.h
@@ -39,4 +39,8 @@ static inline int insn_length(unsigned char code)
 	return ((((int) code + 64) >> 7) + 1) << 1;
 }
 
+void show_code(struct pt_regs *regs);
+void print_fn_code(unsigned char *code, unsigned long len);
+int insn_to_mnemonic(unsigned char *instruction, char *buf, unsigned int len);
+
 #endif /* __ASM_S390_DIS_H__ */
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index ca7821f07260..50256f05fbcf 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -169,11 +169,6 @@ extern void release_thread(struct task_struct *);
  */
 extern unsigned long thread_saved_pc(struct task_struct *t);
 
-extern void show_code(struct pt_regs *regs);
-extern void print_fn_code(unsigned char *code, unsigned long len);
-extern int insn_to_mnemonic(unsigned char *instruction, char *buf,
-			    unsigned int len);
-
 unsigned long get_wchan(struct task_struct *p);
 #define task_pt_regs(tsk) ((struct pt_regs *) \
         (task_stack_page(tsk) + THREAD_SIZE) - 1)
diff --git a/arch/s390/kernel/dumpstack.c b/arch/s390/kernel/dumpstack.c
index 99e7f6035895..e6af9406987c 100644
--- a/arch/s390/kernel/dumpstack.c
+++ b/arch/s390/kernel/dumpstack.c
@@ -15,6 +15,7 @@
 #include <linux/sched.h>
 #include <asm/processor.h>
 #include <asm/debug.h>
+#include <asm/dis.h>
 #include <asm/ipl.h>
 
 #ifndef CONFIG_64BIT
diff --git a/arch/s390/kvm/trace.h b/arch/s390/kvm/trace.h
index c2f582bb1cb2..0c991c6748ab 100644
--- a/arch/s390/kvm/trace.h
+++ b/arch/s390/kvm/trace.h
@@ -4,6 +4,7 @@
 #include <linux/tracepoint.h>
 #include <asm/sigp.h>
 #include <asm/debug.h>
+#include <asm/dis.h>
 
 #undef TRACE_SYSTEM
 #define TRACE_SYSTEM kvm
diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index a5df511e27a2..49425ca801d5 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -12,8 +12,8 @@
 #include <linux/random.h>
 #include <linux/init.h>
 #include <asm/cacheflush.h>
-#include <asm/processor.h>
 #include <asm/facility.h>
+#include <asm/dis.h>
 
 /*
  * Conventions:
-- 
cgit 


From a882b3b0676fa42ab29c492e56749ab00ca95c0d Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Fri, 13 Sep 2013 13:59:26 +0200
Subject: s390/kprobes: use insn_length helper function

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/kprobes.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c
index 9f99ad7fc212..c52fdf290301 100644
--- a/arch/s390/kernel/kprobes.c
+++ b/arch/s390/kernel/kprobes.c
@@ -26,11 +26,12 @@
 #include <linux/stop_machine.h>
 #include <linux/kdebug.h>
 #include <linux/uaccess.h>
-#include <asm/cacheflush.h>
-#include <asm/sections.h>
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/hardirq.h>
+#include <asm/cacheflush.h>
+#include <asm/sections.h>
+#include <asm/dis.h>
 
 DEFINE_PER_CPU(struct kprobe *, current_kprobe);
 DEFINE_PER_CPU(struct kprobe_ctlblk, kprobe_ctlblk);
@@ -208,7 +209,7 @@ static void __kprobes copy_instruction(struct kprobe *p)
 	s64 disp, new_disp;
 	u64 addr, new_addr;
 
-	memcpy(p->ainsn.insn, p->addr, ((p->opcode >> 14) + 3) & -2);
+	memcpy(p->ainsn.insn, p->addr, insn_length(p->opcode >> 8));
 	if (!is_insn_relative_long(p->ainsn.insn))
 		return;
 	/*
@@ -608,7 +609,7 @@ static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs)
 		ip += (unsigned long) p->addr - (unsigned long) p->ainsn.insn;
 
 	if (fixup & FIXUP_BRANCH_NOT_TAKEN) {
-		int ilen = ((p->ainsn.insn[0] >> 14) + 3) & -2;
+		int ilen = insn_length(p->ainsn.insn[0] >> 8);
 		if (ip - (unsigned long) p->ainsn.insn == ilen)
 			ip = (unsigned long) p->addr + ilen;
 	}
-- 
cgit 


From 1ffa11abfe90320abe82bf5bb7eeca154e333058 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Fri, 13 Sep 2013 14:14:10 +0200
Subject: s390/kprobes: allow kprobes only on known instructions

Since we have an in-kernel disassembler we can make sure that
there won't be any kprobes set on random data.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/dis.h | 6 ++++++
 arch/s390/kernel/dis.c      | 2 +-
 arch/s390/kernel/kprobes.c  | 2 ++
 3 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/s390/include/asm/dis.h b/arch/s390/include/asm/dis.h
index 4d0dffc68221..04a83f5773cd 100644
--- a/arch/s390/include/asm/dis.h
+++ b/arch/s390/include/asm/dis.h
@@ -42,5 +42,11 @@ static inline int insn_length(unsigned char code)
 void show_code(struct pt_regs *regs);
 void print_fn_code(unsigned char *code, unsigned long len);
 int insn_to_mnemonic(unsigned char *instruction, char *buf, unsigned int len);
+struct s390_insn *find_insn(unsigned char *code);
+
+static inline int is_known_insn(unsigned char *code)
+{
+	return !!find_insn(code);
+}
 
 #endif /* __ASM_S390_DIS_H__ */
diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c
index ce554f3ec445..993efe6a887c 100644
--- a/arch/s390/kernel/dis.c
+++ b/arch/s390/kernel/dis.c
@@ -1586,7 +1586,7 @@ static unsigned int extract_operand(unsigned char *code,
 	return val;
 }
 
-static struct s390_insn *find_insn(unsigned char *code)
+struct s390_insn *find_insn(unsigned char *code)
 {
 	unsigned char opfrag = code[1];
 	unsigned char opmask;
diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c
index c52fdf290301..59a9c35c4598 100644
--- a/arch/s390/kernel/kprobes.c
+++ b/arch/s390/kernel/kprobes.c
@@ -60,6 +60,8 @@ struct kprobe_insn_cache kprobe_dmainsn_slots = {
 
 static int __kprobes is_prohibited_opcode(kprobe_opcode_t *insn)
 {
+	if (!is_known_insn((unsigned char *)insn))
+		return -EINVAL;
 	switch (insn[0] >> 8) {
 	case 0x0c:	/* bassm */
 	case 0x0b:	/* bsm	 */
-- 
cgit 


From eddf0d5b31dda679a98f3e5615a510b8f065cb5d Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 16 Sep 2013 06:59:50 +0200
Subject: s390/qdio: fix atomic_sub() misusage

get_inbound_buffer_frontier() makes use of the return value of atomic_sub()
which shouldn't work, since atomic_sub() is supposed to return void.
This only works on s390 because atomic_sub() gets mapped to atomic_sub_return()
with a define without changing it's return value to void.

So use atomic_sub_return() instead of atomic_sub() in qeth code before fixing
atomic ops.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/s390/cio/qdio_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index bbd3e511c771..3e602e8affa7 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -528,7 +528,7 @@ static int get_inbound_buffer_frontier(struct qdio_q *q)
 	case SLSB_P_INPUT_PRIMED:
 		inbound_primed(q, count);
 		q->first_to_check = add_buf(q->first_to_check, count);
-		if (atomic_sub(count, &q->nr_buf_used) == 0)
+		if (atomic_sub_return(count, &q->nr_buf_used) == 0)
 			qperf_inc(q, inbound_queue_full);
 		if (q->irq_ptr->perf_stat_enabled)
 			account_sbals(q, count);
-- 
cgit 


From 5692e4d11cf5b51045a41daf295626c7fcbb698a Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 16 Sep 2013 10:44:54 +0200
Subject: s390/atomic: optimize atomic_add() for constant values

If the interlocked-access facility 1 is available we can use the asi
and agsi instructions for interlocked updates if the to be added
value is a contanst and small (in the range of -128..127).
asi and agsi do not not return the old or new value, therefore these
instructions can only be used for atomic_(add|sub|inc|dec)[64].

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/atomic.h | 48 +++++++++++++++++++++++++++++++++++-------
 1 file changed, 40 insertions(+), 8 deletions(-)

diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index 823ec99cf426..b58ea97b176f 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -82,15 +82,31 @@ static inline int atomic_add_return(int i, atomic_t *v)
 	return __ATOMIC_LOOP(v, i, __ATOMIC_ADD) + i;
 }
 
-#define atomic_add(_i, _v)		atomic_add_return(_i, _v)
+static inline void atomic_add(int i, atomic_t *v)
+{
+#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
+	if (__builtin_constant_p(i) && (i > -129) && (i < 128)) {
+		asm volatile(
+			"asi	%0,%1\n"
+			: "+Q" (v->counter)
+			: "i" (i)
+			: "cc", "memory");
+	} else {
+		atomic_add_return(i, v);
+	}
+#else
+	atomic_add_return(i, v);
+#endif
+}
+
 #define atomic_add_negative(_i, _v)	(atomic_add_return(_i, _v) < 0)
-#define atomic_inc(_v)			atomic_add_return(1, _v)
+#define atomic_inc(_v)			atomic_add(1, _v)
 #define atomic_inc_return(_v)		atomic_add_return(1, _v)
 #define atomic_inc_and_test(_v)		(atomic_add_return(1, _v) == 0)
+#define atomic_sub(_i, _v)		atomic_add(-(int)(_i), _v)
 #define atomic_sub_return(_i, _v)	atomic_add_return(-(int)(_i), _v)
-#define atomic_sub(_i, _v)		atomic_sub_return(_i, _v)
 #define atomic_sub_and_test(_i, _v)	(atomic_sub_return(_i, _v) == 0)
-#define atomic_dec(_v)			atomic_sub_return(1, _v)
+#define atomic_dec(_v)			atomic_sub(1, _v)
 #define atomic_dec_return(_v)		atomic_sub_return(1, _v)
 #define atomic_dec_and_test(_v)		(atomic_sub_return(1, _v) == 0)
 
@@ -314,6 +330,23 @@ static inline void atomic64_clear_mask(unsigned long long mask, atomic64_t *v)
 
 #endif /* CONFIG_64BIT */
 
+static inline void atomic64_add(long long i, atomic64_t *v)
+{
+#ifdef CONFIG_HAVE_MARCH_Z196_FEATURES
+	if (__builtin_constant_p(i) && (i > -129) && (i < 128)) {
+		asm volatile(
+			"agsi	%0,%1\n"
+			: "+Q" (v->counter)
+			: "i" (i)
+			: "cc", "memory");
+	} else {
+		atomic64_add_return(i, v);
+	}
+#else
+	atomic64_add_return(i, v);
+#endif
+}
+
 static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u)
 {
 	long long c, old;
@@ -347,15 +380,14 @@ static inline long long atomic64_dec_if_positive(atomic64_t *v)
 	return dec;
 }
 
-#define atomic64_add(_i, _v)		atomic64_add_return(_i, _v)
 #define atomic64_add_negative(_i, _v)	(atomic64_add_return(_i, _v) < 0)
-#define atomic64_inc(_v)		atomic64_add_return(1, _v)
+#define atomic64_inc(_v)		atomic64_add(1, _v)
 #define atomic64_inc_return(_v)		atomic64_add_return(1, _v)
 #define atomic64_inc_and_test(_v)	(atomic64_add_return(1, _v) == 0)
 #define atomic64_sub_return(_i, _v)	atomic64_add_return(-(long long)(_i), _v)
-#define atomic64_sub(_i, _v)		atomic64_sub_return(_i, _v)
+#define atomic64_sub(_i, _v)		atomic64_add(-(long long)(_i), _v)
 #define atomic64_sub_and_test(_i, _v)	(atomic64_sub_return(_i, _v) == 0)
-#define atomic64_dec(_v)		atomic64_sub_return(1, _v)
+#define atomic64_dec(_v)		atomic64_sub(1, _v)
 #define atomic64_dec_return(_v)		atomic64_sub_return(1, _v)
 #define atomic64_dec_and_test(_v)	(atomic64_sub_return(1, _v) == 0)
 #define atomic64_inc_not_zero(v)	atomic64_add_unless((v), 1, 0)
-- 
cgit 


From 9a70a42835d2be9bd1862d839f2debaaea79ba32 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 16 Sep 2013 11:07:49 +0200
Subject: s390/atomic: various small cleanups

- add a typecheck to the defines to make sure they operate on an atomic_t
- simplify inline assembly constraints
- keep variable names common between functions

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/atomic.h | 42 ++++++++++++++++++++++++------------------
 1 file changed, 24 insertions(+), 18 deletions(-)

diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index b58ea97b176f..47825e5a82eb 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -28,9 +28,11 @@
 #define __ATOMIC_LOOP(ptr, op_val, op_string)				\
 ({									\
 	int old_val;							\
+									\
+	typecheck(atomic_t *, ptr);					\
 	asm volatile(							\
 		op_string "	%0,%2,%1\n"				\
-		: "=d" (old_val), "+Q" (((atomic_t *)(ptr))->counter)	\
+		: "=d" (old_val), "+Q" ((ptr)->counter)			\
 		: "d" (op_val)						\
 		: "cc", "memory");					\
 	old_val;							\
@@ -45,15 +47,16 @@
 #define __ATOMIC_LOOP(ptr, op_val, op_string)				\
 ({									\
 	int old_val, new_val;						\
+									\
+	typecheck(atomic_t *, ptr);					\
 	asm volatile(							\
 		"	l	%0,%2\n"				\
 		"0:	lr	%1,%0\n"				\
 		op_string "	%1,%3\n"				\
 		"	cs	%0,%1,%2\n"				\
 		"	jl	0b"					\
-		: "=&d" (old_val), "=&d" (new_val),			\
-		  "=Q" (((atomic_t *)(ptr))->counter)			\
-		: "d" (op_val),	 "Q" (((atomic_t *)(ptr))->counter)	\
+		: "=&d" (old_val), "=&d" (new_val), "+Q" ((ptr)->counter)\
+		: "d" (op_val)						\
 		: "cc", "memory");					\
 	old_val;							\
 })
@@ -126,8 +129,8 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
 {
 	asm volatile(
 		"	cs	%0,%2,%1"
-		: "+d" (old), "=Q" (v->counter)
-		: "d" (new), "Q" (v->counter)
+		: "+d" (old), "+Q" (v->counter)
+		: "d" (new)
 		: "cc", "memory");
 	return old;
 }
@@ -163,9 +166,11 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
 #define __ATOMIC64_LOOP(ptr, op_val, op_string)				\
 ({									\
 	long long old_val;						\
+									\
+	typecheck(atomic64_t *, ptr);					\
 	asm volatile(							\
 		op_string "	%0,%2,%1\n"				\
-		: "=d" (old_val), "+Q" (((atomic_t *)(ptr))->counter)	\
+		: "=d" (old_val), "+Q" ((ptr)->counter)			\
 		: "d" (op_val)						\
 		: "cc", "memory");					\
 	old_val;							\
@@ -180,15 +185,16 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
 #define __ATOMIC64_LOOP(ptr, op_val, op_string)				\
 ({									\
 	long long old_val, new_val;					\
+									\
+	typecheck(atomic64_t *, ptr);					\
 	asm volatile(							\
 		"	lg	%0,%2\n"				\
 		"0:	lgr	%1,%0\n"				\
 		op_string "	%1,%3\n"				\
 		"	csg	%0,%1,%2\n"				\
 		"	jl	0b"					\
-		: "=&d" (old_val), "=&d" (new_val),			\
-		  "=Q" (((atomic_t *)(ptr))->counter)			\
-		: "d" (op_val),	"Q" (((atomic_t *)(ptr))->counter)	\
+		: "=&d" (old_val), "=&d" (new_val), "+Q" ((ptr)->counter)\
+		: "d" (op_val)						\
 		: "cc", "memory");					\
 	old_val;							\
 })
@@ -234,8 +240,8 @@ static inline long long atomic64_cmpxchg(atomic64_t *v,
 {
 	asm volatile(
 		"	csg	%0,%2,%1"
-		: "+d" (old), "=Q" (v->counter)
-		: "d" (new), "Q" (v->counter)
+		: "+d" (old), "+Q" (v->counter)
+		: "d" (new)
 		: "cc", "memory");
 	return old;
 }
@@ -276,8 +282,8 @@ static inline long long atomic64_xchg(atomic64_t *v, long long new)
 		"	lm	%0,%N0,%1\n"
 		"0:	cds	%0,%2,%1\n"
 		"	jl	0b\n"
-		: "=&d" (rp_old), "=Q" (v->counter)
-		: "d" (rp_new), "Q" (v->counter)
+		: "=&d" (rp_old), "+Q" (v->counter)
+		: "d" (rp_new)
 		: "cc");
 	return rp_old.pair;
 }
@@ -290,8 +296,8 @@ static inline long long atomic64_cmpxchg(atomic64_t *v,
 
 	asm volatile(
 		"	cds	%0,%2,%1"
-		: "+&d" (rp_old), "=Q" (v->counter)
-		: "d" (rp_new), "Q" (v->counter)
+		: "+&d" (rp_old), "+Q" (v->counter)
+		: "d" (rp_new)
 		: "cc");
 	return rp_old.pair;
 }
@@ -347,7 +353,7 @@ static inline void atomic64_add(long long i, atomic64_t *v)
 #endif
 }
 
-static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u)
+static inline int atomic64_add_unless(atomic64_t *v, long long i, long long u)
 {
 	long long c, old;
 
@@ -355,7 +361,7 @@ static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u)
 	for (;;) {
 		if (unlikely(c == u))
 			break;
-		old = atomic64_cmpxchg(v, c, c + a);
+		old = atomic64_cmpxchg(v, c, c + i);
 		if (likely(old == c))
 			break;
 		c = old;
-- 
cgit 


From 370b0b5f7744d62a9ba6c25fd6b0dcba84419443 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 16 Sep 2013 16:22:05 +0200
Subject: s390/bitops: remove CONFIG_SMP / simplify non-atomic bitops

Remove CONFIG_SMP from bitops code. This reduces the C code significantly
but also generates better code for the SMP case.

This means that for !CONFIG_SMP set_bit() and friends now also have
compare and swap semantics (read: more code). However nobody really cares
for !CONFIG_SMP and this is the trade-off to simplify the SMP code which we
do care about.

The non-atomic bitops like __set_bit() now generate also better code
because the old code did not have a __builtin_contant_p() check for the
CONFIG_SMP case and therefore always generated the inline assembly variant.
However the inline assemblies for the non-atomic case now got completely
removed since gcc can produce better code, which accesses less memory
operands.

test_bit() got also a bit simplified since it did have a
__builtin_constant_p() check, however two identical code pathes for each
case (written differently).

In result this mainly reduces the to be maintained code but is not very
relevant for code generation, since there are not many non-atomic bitops
usages that we care about.
(code reduction defconfig kernel image before/after: 560 bytes).

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/bitops.h | 276 ++++++++++-------------------------------
 arch/s390/kernel/bitmap.c      |   6 -
 2 files changed, 65 insertions(+), 217 deletions(-)

diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index bb26481a723f..6038349c8410 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -15,6 +15,7 @@
 #error only <linux/bitops.h> can be included directly
 #endif
 
+#include <linux/typecheck.h>
 #include <linux/compiler.h>
 
 /*
@@ -54,8 +55,6 @@
  */
 
 /* bitmap tables from arch/s390/kernel/bitmap.c */
-extern const char _oi_bitmap[];
-extern const char _ni_bitmap[];
 extern const char _zb_findmap[];
 extern const char _sb_findmap[];
 
@@ -69,15 +68,15 @@ extern const char _sb_findmap[];
 ({								\
 	unsigned long __old, __new;				\
 								\
+	typecheck(unsigned long *, (__addr));			\
 	asm volatile(						\
 		"	l	%0,%2\n"			\
 		"0:	lr	%1,%0\n"			\
 		__op_string "	%1,%3\n"			\
 		"	cs	%0,%1,%2\n"			\
 		"	jl	0b"				\
-		: "=&d" (__old), "=&d" (__new),			\
-		  "=Q" (*(unsigned long *) __addr)		\
-		: "d" (__val), "Q" (*(unsigned long *) __addr)	\
+		: "=&d" (__old), "=&d" (__new), "+Q" (*(__addr))\
+		: "d" (__val)					\
 		: "cc");					\
 	__old;							\
 })
@@ -94,9 +93,10 @@ extern const char _sb_findmap[];
 ({								\
 	unsigned long __old;					\
 								\
+	typecheck(unsigned long *, (__addr));			\
 	asm volatile(						\
 		__op_string "	%0,%2,%1\n"			\
-		: "=d" (__old),	"+Q" (*(unsigned long *)__addr)	\
+		: "=d" (__old),	"+Q" (*(__addr))		\
 		: "d" (__val)					\
 		: "cc");					\
 	__old;							\
@@ -112,15 +112,15 @@ extern const char _sb_findmap[];
 ({								\
 	unsigned long __old, __new;				\
 								\
+	typecheck(unsigned long *, (__addr));			\
 	asm volatile(						\
 		"	lg	%0,%2\n"			\
 		"0:	lgr	%1,%0\n"			\
 		__op_string "	%1,%3\n"			\
 		"	csg	%0,%1,%2\n"			\
 		"	jl	0b"				\
-		: "=&d" (__old), "=&d" (__new),			\
-		  "=Q" (*(unsigned long *) __addr)		\
-		: "d" (__val), "Q" (*(unsigned long *) __addr)	\
+		: "=&d" (__old), "=&d" (__new), "+Q" (*(__addr))\
+		: "d" (__val)					\
 		: "cc");					\
 	__old;							\
 })
@@ -131,294 +131,148 @@ extern const char _sb_findmap[];
 
 #define __BITOPS_WORDS(bits) (((bits) + BITS_PER_LONG - 1) / BITS_PER_LONG)
 
-#ifdef CONFIG_SMP
-/*
- * SMP safe set_bit routine based on compare and swap (CS)
- */
-static inline void set_bit_cs(unsigned long nr, volatile unsigned long *ptr)
+static inline unsigned long *
+__bitops_word(unsigned long nr, volatile unsigned long *ptr)
+{
+	unsigned long addr;
+
+	addr = (unsigned long)ptr + ((nr ^ (nr & (BITS_PER_LONG - 1))) >> 3);
+	return (unsigned long *)addr;
+}
+
+static inline unsigned char *
+__bitops_byte(unsigned long nr, volatile unsigned long *ptr)
+{
+	return ((unsigned char *)ptr) + ((nr ^ (BITS_PER_LONG - 8)) >> 3);
+}
+
+static inline void set_bit(unsigned long nr, volatile unsigned long *ptr)
 {
-	unsigned long addr, mask;
+	unsigned long *addr = __bitops_word(nr, ptr);
+	unsigned long mask;
 
-	addr = (unsigned long) ptr;
-	/* calculate address for CS */
-	addr += (nr ^ (nr & (BITS_PER_LONG - 1))) >> 3;
-	/* make OR mask */
 	mask = 1UL << (nr & (BITS_PER_LONG - 1));
-	/* Do the atomic update. */
 	__BITOPS_LOOP(addr, mask, __BITOPS_OR);
 }
 
-/*
- * SMP safe clear_bit routine based on compare and swap (CS)
- */
-static inline void clear_bit_cs(unsigned long nr, volatile unsigned long *ptr)
+static inline void clear_bit(unsigned long nr, volatile unsigned long *ptr)
 {
-	unsigned long addr, mask;
+	unsigned long *addr = __bitops_word(nr, ptr);
+	unsigned long mask;
 
-	addr = (unsigned long) ptr;
-	/* calculate address for CS */
-	addr += (nr ^ (nr & (BITS_PER_LONG - 1))) >> 3;
-	/* make AND mask */
 	mask = ~(1UL << (nr & (BITS_PER_LONG - 1)));
-	/* Do the atomic update. */
 	__BITOPS_LOOP(addr, mask, __BITOPS_AND);
 }
 
-/*
- * SMP safe change_bit routine based on compare and swap (CS)
- */
-static inline void change_bit_cs(unsigned long nr, volatile unsigned long *ptr)
+static inline void change_bit(unsigned long nr, volatile unsigned long *ptr)
 {
-	unsigned long addr, mask;
+	unsigned long *addr = __bitops_word(nr, ptr);
+	unsigned long mask;
 
-	addr = (unsigned long) ptr;
-	/* calculate address for CS */
-	addr += (nr ^ (nr & (BITS_PER_LONG - 1))) >> 3;
-	/* make XOR mask */
 	mask = 1UL << (nr & (BITS_PER_LONG - 1));
-	/* Do the atomic update. */
 	__BITOPS_LOOP(addr, mask, __BITOPS_XOR);
 }
 
-/*
- * SMP safe test_and_set_bit routine based on compare and swap (CS)
- */
 static inline int
-test_and_set_bit_cs(unsigned long nr, volatile unsigned long *ptr)
+test_and_set_bit(unsigned long nr, volatile unsigned long *ptr)
 {
-	unsigned long addr, old, mask;
+	unsigned long *addr = __bitops_word(nr, ptr);
+	unsigned long old, mask;
 
-	addr = (unsigned long) ptr;
-	/* calculate address for CS */
-	addr += (nr ^ (nr & (BITS_PER_LONG - 1))) >> 3;
-	/* make OR/test mask */
 	mask = 1UL << (nr & (BITS_PER_LONG - 1));
-	/* Do the atomic update. */
 	old = __BITOPS_LOOP(addr, mask, __BITOPS_OR);
 	barrier();
 	return (old & mask) != 0;
 }
 
-/*
- * SMP safe test_and_clear_bit routine based on compare and swap (CS)
- */
 static inline int
-test_and_clear_bit_cs(unsigned long nr, volatile unsigned long *ptr)
+test_and_clear_bit(unsigned long nr, volatile unsigned long *ptr)
 {
-	unsigned long addr, old, mask;
+	unsigned long *addr = __bitops_word(nr, ptr);
+	unsigned long old, mask;
 
-	addr = (unsigned long) ptr;
-	/* calculate address for CS */
-	addr += (nr ^ (nr & (BITS_PER_LONG - 1))) >> 3;
-	/* make AND/test mask */
 	mask = ~(1UL << (nr & (BITS_PER_LONG - 1)));
-	/* Do the atomic update. */
 	old = __BITOPS_LOOP(addr, mask, __BITOPS_AND);
 	barrier();
 	return (old & ~mask) != 0;
 }
 
-/*
- * SMP safe test_and_change_bit routine based on compare and swap (CS) 
- */
 static inline int
-test_and_change_bit_cs(unsigned long nr, volatile unsigned long *ptr)
+test_and_change_bit(unsigned long nr, volatile unsigned long *ptr)
 {
-	unsigned long addr, old, mask;
+	unsigned long *addr = __bitops_word(nr, ptr);
+	unsigned long old, mask;
 
-	addr = (unsigned long) ptr;
-	/* calculate address for CS */
-	addr += (nr ^ (nr & (BITS_PER_LONG - 1))) >> 3;
-	/* make XOR/test mask */
 	mask = 1UL << (nr & (BITS_PER_LONG - 1));
-	/* Do the atomic update. */
 	old = __BITOPS_LOOP(addr, mask, __BITOPS_XOR);
 	barrier();
 	return (old & mask) != 0;
 }
-#endif /* CONFIG_SMP */
 
-/*
- * fast, non-SMP set_bit routine
- */
 static inline void __set_bit(unsigned long nr, volatile unsigned long *ptr)
 {
-	unsigned long addr;
-
-	addr = (unsigned long) ptr + ((nr ^ (BITS_PER_LONG - 8)) >> 3);
-	asm volatile(
-		"	oc	%O0(1,%R0),%1"
-		: "+Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7]) : "cc");
-}
-
-static inline void 
-__constant_set_bit(const unsigned long nr, volatile unsigned long *ptr)
-{
-	unsigned long addr;
+	unsigned char *addr = __bitops_byte(nr, ptr);
 
-	addr = ((unsigned long) ptr) + ((nr ^ (BITS_PER_LONG - 8)) >> 3);
-	*(unsigned char *) addr |= 1 << (nr & 7);
+	*addr |= 1 << (nr & 7);
 }
 
-#define set_bit_simple(nr,addr) \
-(__builtin_constant_p((nr)) ? \
- __constant_set_bit((nr),(addr)) : \
- __set_bit((nr),(addr)) )
-
-/*
- * fast, non-SMP clear_bit routine
- */
 static inline void 
 __clear_bit(unsigned long nr, volatile unsigned long *ptr)
 {
-	unsigned long addr;
+	unsigned char *addr = __bitops_byte(nr, ptr);
 
-	addr = (unsigned long) ptr + ((nr ^ (BITS_PER_LONG - 8)) >> 3);
-	asm volatile(
-		"	nc	%O0(1,%R0),%1"
-		: "+Q" (*(char *) addr) : "Q" (_ni_bitmap[nr & 7]) : "cc");
+	*addr &= ~(1 << (nr & 7));
 }
 
-static inline void 
-__constant_clear_bit(const unsigned long nr, volatile unsigned long *ptr)
-{
-	unsigned long addr;
-
-	addr = ((unsigned long) ptr) + ((nr ^ (BITS_PER_LONG - 8)) >> 3);
-	*(unsigned char *) addr &= ~(1 << (nr & 7));
-}
-
-#define clear_bit_simple(nr,addr) \
-(__builtin_constant_p((nr)) ? \
- __constant_clear_bit((nr),(addr)) : \
- __clear_bit((nr),(addr)) )
-
-/* 
- * fast, non-SMP change_bit routine 
- */
 static inline void __change_bit(unsigned long nr, volatile unsigned long *ptr)
 {
-	unsigned long addr;
-
-	addr = (unsigned long) ptr + ((nr ^ (BITS_PER_LONG - 8)) >> 3);
-	asm volatile(
-		"	xc	%O0(1,%R0),%1"
-		: "+Q" (*(char *) addr) : "Q" (_oi_bitmap[nr & 7]) : "cc");
-}
-
-static inline void 
-__constant_change_bit(const unsigned long nr, volatile unsigned long *ptr) 
-{
-	unsigned long addr;
+	unsigned char *addr = __bitops_byte(nr, ptr);
 
-	addr = ((unsigned long) ptr) + ((nr ^ (BITS_PER_LONG - 8)) >> 3);
-	*(unsigned char *) addr ^= 1 << (nr & 7);
+	*addr ^= 1 << (nr & 7);
 }
 
-#define change_bit_simple(nr,addr) \
-(__builtin_constant_p((nr)) ? \
- __constant_change_bit((nr),(addr)) : \
- __change_bit((nr),(addr)) )
-
-/*
- * fast, non-SMP test_and_set_bit routine
- */
 static inline int
-test_and_set_bit_simple(unsigned long nr, volatile unsigned long *ptr)
+__test_and_set_bit(unsigned long nr, volatile unsigned long *ptr)
 {
-	unsigned long addr;
+	unsigned char *addr = __bitops_byte(nr, ptr);
 	unsigned char ch;
 
-	addr = (unsigned long) ptr + ((nr ^ (BITS_PER_LONG - 8)) >> 3);
-	ch = *(unsigned char *) addr;
-	asm volatile(
-		"	oc	%O0(1,%R0),%1"
-		: "+Q" (*(char *) addr)	: "Q" (_oi_bitmap[nr & 7])
-		: "cc", "memory");
+	ch = *addr;
+	*addr |= 1 << (nr & 7);
 	return (ch >> (nr & 7)) & 1;
 }
-#define __test_and_set_bit(X,Y)		test_and_set_bit_simple(X,Y)
 
-/*
- * fast, non-SMP test_and_clear_bit routine
- */
 static inline int
-test_and_clear_bit_simple(unsigned long nr, volatile unsigned long *ptr)
+__test_and_clear_bit(unsigned long nr, volatile unsigned long *ptr)
 {
-	unsigned long addr;
+	unsigned char *addr = __bitops_byte(nr, ptr);
 	unsigned char ch;
 
-	addr = (unsigned long) ptr + ((nr ^ (BITS_PER_LONG - 8)) >> 3);
-	ch = *(unsigned char *) addr;
-	asm volatile(
-		"	nc	%O0(1,%R0),%1"
-		: "+Q" (*(char *) addr)	: "Q" (_ni_bitmap[nr & 7])
-		: "cc", "memory");
+	ch = *addr;
+	*addr &= ~(1 << (nr & 7));
 	return (ch >> (nr & 7)) & 1;
 }
-#define __test_and_clear_bit(X,Y)	test_and_clear_bit_simple(X,Y)
 
-/*
- * fast, non-SMP test_and_change_bit routine
- */
 static inline int
-test_and_change_bit_simple(unsigned long nr, volatile unsigned long *ptr)
+__test_and_change_bit(unsigned long nr, volatile unsigned long *ptr)
 {
-	unsigned long addr;
+	unsigned char *addr = __bitops_byte(nr, ptr);
 	unsigned char ch;
 
-	addr = (unsigned long) ptr + ((nr ^ (BITS_PER_LONG - 8)) >> 3);
-	ch = *(unsigned char *) addr;
-	asm volatile(
-		"	xc	%O0(1,%R0),%1"
-		: "+Q" (*(char *) addr)	: "Q" (_oi_bitmap[nr & 7])
-		: "cc", "memory");
+	ch = *addr;
+	*addr ^= 1 << (nr & 7);
 	return (ch >> (nr & 7)) & 1;
 }
-#define __test_and_change_bit(X,Y)	test_and_change_bit_simple(X,Y)
-
-#ifdef CONFIG_SMP
-#define set_bit             set_bit_cs
-#define clear_bit           clear_bit_cs
-#define change_bit          change_bit_cs
-#define test_and_set_bit    test_and_set_bit_cs
-#define test_and_clear_bit  test_and_clear_bit_cs
-#define test_and_change_bit test_and_change_bit_cs
-#else
-#define set_bit             set_bit_simple
-#define clear_bit           clear_bit_simple
-#define change_bit          change_bit_simple
-#define test_and_set_bit    test_and_set_bit_simple
-#define test_and_clear_bit  test_and_clear_bit_simple
-#define test_and_change_bit test_and_change_bit_simple
-#endif
-
 
-/*
- * This routine doesn't need to be atomic.
- */
-
-static inline int __test_bit(unsigned long nr, const volatile unsigned long *ptr)
+static inline int test_bit(unsigned long nr, const volatile unsigned long *ptr)
 {
-	unsigned long addr;
-	unsigned char ch;
+	const volatile unsigned char *addr;
 
-	addr = (unsigned long) ptr + ((nr ^ (BITS_PER_LONG - 8)) >> 3);
-	ch = *(volatile unsigned char *) addr;
-	return (ch >> (nr & 7)) & 1;
-}
-
-static inline int 
-__constant_test_bit(unsigned long nr, const volatile unsigned long *addr) {
-    return (((volatile char *) addr)
-	    [(nr^(BITS_PER_LONG-8))>>3] & (1<<(nr&7))) != 0;
+	addr = ((const volatile unsigned char *)ptr);
+	addr += (nr ^ (BITS_PER_LONG - 8)) >> 3;
+	return (*addr >> (nr & 7)) & 1;
 }
 
-#define test_bit(nr,addr) \
-(__builtin_constant_p((nr)) ? \
- __constant_test_bit((nr),(addr)) : \
- __test_bit((nr),(addr)) )
-
 /*
  * Optimized find bit helper functions.
  */
diff --git a/arch/s390/kernel/bitmap.c b/arch/s390/kernel/bitmap.c
index 102da5e23037..5cdb813fd77f 100644
--- a/arch/s390/kernel/bitmap.c
+++ b/arch/s390/kernel/bitmap.c
@@ -9,12 +9,6 @@
 #include <linux/bitops.h>
 #include <linux/module.h>
 
-const char _oi_bitmap[] = { 0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80 };
-EXPORT_SYMBOL(_oi_bitmap);
-
-const char _ni_bitmap[] = { 0xfe, 0xfd, 0xfb, 0xf7, 0xef, 0xdf, 0xbf, 0x7f };
-EXPORT_SYMBOL(_ni_bitmap);
-
 const char _zb_findmap[] = {
 	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
 	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,
-- 
cgit 


From 4ae803253e4649803dc6e972bb5e59fc107cf474 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Tue, 17 Sep 2013 09:48:44 +0200
Subject: s390/bitops: optimize set_bit() for constant values

Since zEC12 we have the interlocked-access facility 2 which allows to
use the instructions ni/oi/xi to update a single byte in storage with
compare-and-swap semantics.
So change set_bit(), clear_bit() and change_bit() to generate such code
instead of a compare-and-swap loop (or using the load-and-* instruction
family), if possible.
This reduces the text segment by yet another 8KB (defconfig).

Alternatively the long displacement variants niy/oiy/xiy could have
been used, but the extended displacement field is usually not needed
and therefore would only increase the size of the text segment again.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/bitops.h | 36 ++++++++++++++++++++++++++++++++++++
 arch/s390/kernel/head.S        |  2 +-
 2 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index 6038349c8410..16df62dde094 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -151,6 +151,18 @@ static inline void set_bit(unsigned long nr, volatile unsigned long *ptr)
 	unsigned long *addr = __bitops_word(nr, ptr);
 	unsigned long mask;
 
+#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES
+	if (__builtin_constant_p(nr)) {
+		unsigned char *caddr = __bitops_byte(nr, ptr);
+
+		asm volatile(
+			"oi	%0,%b1\n"
+			: "+Q" (*caddr)
+			: "i" (1 << (nr & 7))
+			: "cc");
+		return;
+	}
+#endif
 	mask = 1UL << (nr & (BITS_PER_LONG - 1));
 	__BITOPS_LOOP(addr, mask, __BITOPS_OR);
 }
@@ -160,6 +172,18 @@ static inline void clear_bit(unsigned long nr, volatile unsigned long *ptr)
 	unsigned long *addr = __bitops_word(nr, ptr);
 	unsigned long mask;
 
+#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES
+	if (__builtin_constant_p(nr)) {
+		unsigned char *caddr = __bitops_byte(nr, ptr);
+
+		asm volatile(
+			"ni	%0,%b1\n"
+			: "+Q" (*caddr)
+			: "i" (~(1 << (nr & 7)))
+			: "cc");
+		return;
+	}
+#endif
 	mask = ~(1UL << (nr & (BITS_PER_LONG - 1)));
 	__BITOPS_LOOP(addr, mask, __BITOPS_AND);
 }
@@ -169,6 +193,18 @@ static inline void change_bit(unsigned long nr, volatile unsigned long *ptr)
 	unsigned long *addr = __bitops_word(nr, ptr);
 	unsigned long mask;
 
+#ifdef CONFIG_HAVE_MARCH_ZEC12_FEATURES
+	if (__builtin_constant_p(nr)) {
+		unsigned char *caddr = __bitops_byte(nr, ptr);
+
+		asm volatile(
+			"xi	%0,%b1\n"
+			: "+Q" (*caddr)
+			: "i" (1 << (nr & 7))
+			: "cc");
+		return;
+	}
+#endif
 	mask = 1UL << (nr & (BITS_PER_LONG - 1));
 	__BITOPS_LOOP(addr, mask, __BITOPS_XOR);
 }
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index fd8db63dfc94..429afcc480cb 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -437,7 +437,7 @@ ENTRY(startup_kdump)
 
 #if defined(CONFIG_64BIT)
 #if defined(CONFIG_MARCH_ZEC12)
-	.long 3, 0xc100efe3, 0xf46ce000, 0x00400000
+	.long 3, 0xc100efe3, 0xf46ce800, 0x00400000
 #elif defined(CONFIG_MARCH_Z196)
 	.long 2, 0xc100efe3, 0xf46c0000
 #elif defined(CONFIG_MARCH_Z10)
-- 
cgit 


From f1d86b61fb6692c592e937dfb5069e4057855a3b Mon Sep 17 00:00:00 2001
From: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Date: Wed, 18 Sep 2013 17:21:34 +0200
Subject: s390/s390dbf: add debug_level_enabled() function

Add the debug_level_enabled() function to check if debug events for
a particular level would be logged.  This might help to save cycles
for debug events that require additional information collection.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 Documentation/s390/s390dbf.txt | 10 ++++++++++
 arch/s390/include/asm/debug.h  |  5 +++++
 2 files changed, 15 insertions(+)

diff --git a/Documentation/s390/s390dbf.txt b/Documentation/s390/s390dbf.txt
index fcaf0b4efba2..3da163383c93 100644
--- a/Documentation/s390/s390dbf.txt
+++ b/Documentation/s390/s390dbf.txt
@@ -157,6 +157,16 @@ Return Value:  none
 
 Description:   Sets new actual debug level if new_level is valid. 
 
+---------------------------------------------------------------------------
+bool debug_level_enabled (debug_info_t * id, int level);
+
+Parameter:    id:	  handle for debug log
+	      level:	  debug level
+
+Return Value: True if level is less or equal to the current debug level.
+
+Description:  Returns true if debug events for the specified level would be
+	      logged. Otherwise returns false.
 ---------------------------------------------------------------------------
 void debug_stop_all(void);
 
diff --git a/arch/s390/include/asm/debug.h b/arch/s390/include/asm/debug.h
index 188c5052a20a..530c15eb01e9 100644
--- a/arch/s390/include/asm/debug.h
+++ b/arch/s390/include/asm/debug.h
@@ -107,6 +107,11 @@ void debug_set_level(debug_info_t* id, int new_level);
 void debug_set_critical(void);
 void debug_stop_all(void);
 
+static inline bool debug_level_enabled(debug_info_t* id, int level)
+{
+	return level <= id->level;
+}
+
 static inline debug_entry_t*
 debug_event(debug_info_t* id, int level, void* data, int length)
 {
-- 
cgit 


From 8e6a8285668b139460cc6852bfd58fdbd00c7157 Mon Sep 17 00:00:00 2001
From: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Date: Wed, 18 Sep 2013 17:21:34 +0200
Subject: s390/s390dbf: use debug_level_enabled() where applicable

Refactor direct debug level comparisons with the (internal) s390db->level
member.  Use the debug_level_enabled() function instead.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/s390/block/scm_blk.h       |  2 +-
 drivers/s390/cio/eadm_sch.c        |  2 +-
 drivers/s390/cio/qdio_debug.h      |  8 +-------
 drivers/s390/crypto/zcrypt_debug.h | 12 +++---------
 drivers/s390/net/claw.h            |  8 +-------
 drivers/s390/net/ctcm_dbug.c       |  2 +-
 drivers/s390/net/lcs.h             |  8 +-------
 drivers/s390/net/netiucv.c         |  8 +-------
 drivers/s390/net/qeth_core_main.c  |  2 +-
 drivers/s390/scsi/zfcp_dbf.h       |  4 ++--
 10 files changed, 13 insertions(+), 43 deletions(-)

diff --git a/drivers/s390/block/scm_blk.h b/drivers/s390/block/scm_blk.h
index 8b387b32fd62..e59331e6c2e5 100644
--- a/drivers/s390/block/scm_blk.h
+++ b/drivers/s390/block/scm_blk.h
@@ -107,7 +107,7 @@ extern debug_info_t *scm_debug;
 
 static inline void SCM_LOG_HEX(int level, void *data, int length)
 {
-	if (level > scm_debug->level)
+	if (!debug_level_enabled(scm_debug, level))
 		return;
 	while (length > 0) {
 		debug_event(scm_debug, level, data, length);
diff --git a/drivers/s390/cio/eadm_sch.c b/drivers/s390/cio/eadm_sch.c
index d9eddcba7e88..6b54d8a05cd4 100644
--- a/drivers/s390/cio/eadm_sch.c
+++ b/drivers/s390/cio/eadm_sch.c
@@ -42,7 +42,7 @@ static debug_info_t *eadm_debug;
 
 static void EADM_LOG_HEX(int level, void *data, int length)
 {
-	if (level > eadm_debug->level)
+	if (!debug_level_enabled(eadm_debug, level))
 		return;
 	while (length > 0) {
 		debug_event(eadm_debug, level, data, length);
diff --git a/drivers/s390/cio/qdio_debug.h b/drivers/s390/cio/qdio_debug.h
index 647b422bb22a..dfac9bfefea3 100644
--- a/drivers/s390/cio/qdio_debug.h
+++ b/drivers/s390/cio/qdio_debug.h
@@ -16,12 +16,6 @@
 extern debug_info_t *qdio_dbf_setup;
 extern debug_info_t *qdio_dbf_error;
 
-/* sort out low debug levels early to avoid wasted sprints */
-static inline int qdio_dbf_passes(debug_info_t *dbf_grp, int level)
-{
-	return (level <= dbf_grp->level);
-}
-
 #define DBF_ERR		3	/* error conditions	*/
 #define DBF_WARN	4	/* warning conditions	*/
 #define DBF_INFO	6	/* informational	*/
@@ -65,7 +59,7 @@ static inline void DBF_ERROR_HEX(void *addr, int len)
 #define DBF_DEV_EVENT(level, device, text...) \
 	do { \
 		char debug_buffer[QDIO_DBF_LEN]; \
-		if (qdio_dbf_passes(device->debug_area, level)) { \
+		if (debug_level_enabled(device->debug_area, level)) { \
 			snprintf(debug_buffer, QDIO_DBF_LEN, text); \
 			debug_text_event(device->debug_area, level, debug_buffer); \
 		} \
diff --git a/drivers/s390/crypto/zcrypt_debug.h b/drivers/s390/crypto/zcrypt_debug.h
index 841ea72e4a4e..28d9349de1ad 100644
--- a/drivers/s390/crypto/zcrypt_debug.h
+++ b/drivers/s390/crypto/zcrypt_debug.h
@@ -11,12 +11,6 @@
 /* that gives us 15 characters in the text event views */
 #define ZCRYPT_DBF_LEN	16
 
-/* sort out low debug levels early to avoid wasted sprints */
-static inline int zcrypt_dbf_passes(debug_info_t *dbf_grp, int level)
-{
-	return (level <= dbf_grp->level);
-}
-
 #define DBF_ERR		3	/* error conditions	*/
 #define DBF_WARN	4	/* warning conditions	*/
 #define DBF_INFO	6	/* informational	*/
@@ -25,7 +19,7 @@ static inline int zcrypt_dbf_passes(debug_info_t *dbf_grp, int level)
 
 #define ZCRYPT_DBF_COMMON(level, text...) \
 	do { \
-		if (zcrypt_dbf_passes(zcrypt_dbf_common, level)) { \
+		if (debug_level_enabled(zcrypt_dbf_common, level)) { \
 			char debug_buffer[ZCRYPT_DBF_LEN]; \
 			snprintf(debug_buffer, ZCRYPT_DBF_LEN, text); \
 			debug_text_event(zcrypt_dbf_common, level, \
@@ -35,7 +29,7 @@ static inline int zcrypt_dbf_passes(debug_info_t *dbf_grp, int level)
 
 #define ZCRYPT_DBF_DEVICES(level, text...) \
 	do { \
-		if (zcrypt_dbf_passes(zcrypt_dbf_devices, level)) { \
+		if (debug_level_enabled(zcrypt_dbf_devices, level)) { \
 			char debug_buffer[ZCRYPT_DBF_LEN]; \
 			snprintf(debug_buffer, ZCRYPT_DBF_LEN, text); \
 			debug_text_event(zcrypt_dbf_devices, level, \
@@ -45,7 +39,7 @@ static inline int zcrypt_dbf_passes(debug_info_t *dbf_grp, int level)
 
 #define ZCRYPT_DBF_DEV(level, device, text...) \
 	do { \
-		if (zcrypt_dbf_passes(device->dbf_area, level)) { \
+		if (debug_level_enabled(device->dbf_area, level)) { \
 			char debug_buffer[ZCRYPT_DBF_LEN]; \
 			snprintf(debug_buffer, ZCRYPT_DBF_LEN, text); \
 			debug_text_event(device->dbf_area, level, \
diff --git a/drivers/s390/net/claw.h b/drivers/s390/net/claw.h
index 1bc5904df19f..3339b9b607b3 100644
--- a/drivers/s390/net/claw.h
+++ b/drivers/s390/net/claw.h
@@ -114,15 +114,9 @@ do { \
 	debug_event(claw_dbf_##name,level,(void*)(addr),len); \
 } while (0)
 
-/* Allow to sort out low debug levels early to avoid wasted sprints */
-static inline int claw_dbf_passes(debug_info_t *dbf_grp, int level)
-{
-	return (level <= dbf_grp->level);
-}
-
 #define CLAW_DBF_TEXT_(level,name,text...) \
 	do { \
-		if (claw_dbf_passes(claw_dbf_##name, level)) { \
+		if (debug_level_enabled(claw_dbf_##name, level)) { \
 			sprintf(debug_buffer, text); \
 			debug_text_event(claw_dbf_##name, level, \
 						debug_buffer); \
diff --git a/drivers/s390/net/ctcm_dbug.c b/drivers/s390/net/ctcm_dbug.c
index 6514e1cb3f1c..8363f1c966ef 100644
--- a/drivers/s390/net/ctcm_dbug.c
+++ b/drivers/s390/net/ctcm_dbug.c
@@ -66,7 +66,7 @@ void ctcm_dbf_longtext(enum ctcm_dbf_names dbf_nix, int level, char *fmt, ...)
 	char dbf_txt_buf[64];
 	va_list args;
 
-	if (level > (ctcm_dbf[dbf_nix].id)->level)
+	if (!debug_level_enabled(ctcm_dbf[dbf_nix].id, level))
 		return;
 	va_start(args, fmt);
 	vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args);
diff --git a/drivers/s390/net/lcs.h b/drivers/s390/net/lcs.h
index 8c03392ac833..150fcb4cebc3 100644
--- a/drivers/s390/net/lcs.h
+++ b/drivers/s390/net/lcs.h
@@ -16,15 +16,9 @@ do { \
 	debug_event(lcs_dbf_##name,level,(void*)(addr),len); \
 } while (0)
 
-/* Allow to sort out low debug levels early to avoid wasted sprints */
-static inline int lcs_dbf_passes(debug_info_t *dbf_grp, int level)
-{
-	return (level <= dbf_grp->level);
-}
-
 #define LCS_DBF_TEXT_(level,name,text...) \
 	do { \
-		if (lcs_dbf_passes(lcs_dbf_##name, level)) { \
+		if (debug_level_enabled(lcs_dbf_##name, level)) { \
 			sprintf(debug_buffer, text); \
 			debug_text_event(lcs_dbf_##name, level, debug_buffer); \
 		} \
diff --git a/drivers/s390/net/netiucv.c b/drivers/s390/net/netiucv.c
index 279ad504ec3c..9b333fcf1a4c 100644
--- a/drivers/s390/net/netiucv.c
+++ b/drivers/s390/net/netiucv.c
@@ -105,15 +105,9 @@ MODULE_DESCRIPTION ("Linux for S/390 IUCV network driver");
 
 DECLARE_PER_CPU(char[256], iucv_dbf_txt_buf);
 
-/* Allow to sort out low debug levels early to avoid wasted sprints */
-static inline int iucv_dbf_passes(debug_info_t *dbf_grp, int level)
-{
-	return (level <= dbf_grp->level);
-}
-
 #define IUCV_DBF_TEXT_(name, level, text...) \
 	do { \
-		if (iucv_dbf_passes(iucv_dbf_##name, level)) { \
+		if (debug_level_enabled(iucv_dbf_##name, level)) { \
 			char* __buf = get_cpu_var(iucv_dbf_txt_buf); \
 			sprintf(__buf, text); \
 			debug_text_event(iucv_dbf_##name, level, __buf); \
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 0a328d0d11be..d7b66a28fe75 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -5096,7 +5096,7 @@ void qeth_dbf_longtext(debug_info_t *id, int level, char *fmt, ...)
 	char dbf_txt_buf[32];
 	va_list args;
 
-	if (level > id->level)
+	if (!debug_level_enabled(id, level))
 		return;
 	va_start(args, fmt);
 	vsnprintf(dbf_txt_buf, sizeof(dbf_txt_buf), fmt, args);
diff --git a/drivers/s390/scsi/zfcp_dbf.h b/drivers/s390/scsi/zfcp_dbf.h
index 3ac7a4b30dd9..0be3d48681ae 100644
--- a/drivers/s390/scsi/zfcp_dbf.h
+++ b/drivers/s390/scsi/zfcp_dbf.h
@@ -278,7 +278,7 @@ struct zfcp_dbf {
 static inline
 void zfcp_dbf_hba_fsf_resp(char *tag, int level, struct zfcp_fsf_req *req)
 {
-	if (level <= req->adapter->dbf->hba->level)
+	if (debug_level_enabled(req->adapter->dbf->hba, level))
 		zfcp_dbf_hba_fsf_res(tag, req);
 }
 
@@ -317,7 +317,7 @@ void _zfcp_dbf_scsi(char *tag, int level, struct scsi_cmnd *scmd,
 	struct zfcp_adapter *adapter = (struct zfcp_adapter *)
 					scmd->device->host->hostdata[0];
 
-	if (level <= adapter->dbf->scsi->level)
+	if (debug_level_enabled(adapter->dbf->scsi, level))
 		zfcp_dbf_scsi(tag, scmd, req);
 }
 
-- 
cgit 


From 746479cdcbb131a0645e8cb4a35d6b26126e3e4c Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Wed, 18 Sep 2013 11:45:36 +0200
Subject: s390/bitops: use generic find bit functions / reimplement _left
 variant

Just like all other architectures we should use out-of-line find bit
operations, since the inline variant bloat the size of the kernel image.
And also like all other architecures we should only supply optimized
variants of the __ffs, ffs, etc. primitives.

Therefore this patch removes the inlined s390 find bit functions and uses
the generic out-of-line variants instead.

The optimization of the primitives follows with the next patch.

With this patch also the functions find_first_bit_left() and
find_next_bit_left() have been reimplemented, since logically, they are
nothing else but a find_first_bit()/find_next_bit() implementation that
use an inverted __fls() instead of __ffs().
Also the restriction that these functions only work on machines which
support the "flogr" instruction is gone now.

This reduces the size of the kernel image (defconfig, -march=z9-109)
by 144,482 bytes.
Alone the size of the function build_sched_domains() gets reduced from
7 KB to 3,5 KB.

We also git rid of unused functions like find_first_bit_le()...

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/Kconfig              |   1 +
 arch/s390/include/asm/bitops.h | 600 ++++-------------------------------------
 arch/s390/kernel/Makefile      |   2 +-
 arch/s390/kernel/bitmap.c      |  48 ----
 arch/s390/lib/Makefile         |   2 +-
 arch/s390/lib/find.c           |  77 ++++++
 6 files changed, 126 insertions(+), 604 deletions(-)
 delete mode 100644 arch/s390/kernel/bitmap.c
 create mode 100644 arch/s390/lib/find.c

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 7143793859fa..a02177fb5ec1 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -99,6 +99,7 @@ config S390
 	select CLONE_BACKWARDS2
 	select GENERIC_CLOCKEVENTS
 	select GENERIC_CPU_DEVICES if !SMP
+	select GENERIC_FIND_FIRST_BIT
 	select GENERIC_SMP_IDLE_THREAD
 	select GENERIC_TIME_VSYSCALL_OLD
 	select HAVE_ALIGNED_STRUCT_PAGE if SLUB
diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index 16df62dde094..e5ca8598c06b 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -1,10 +1,40 @@
 /*
- *  S390 version
- *    Copyright IBM Corp. 1999
- *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)
+ *    Copyright IBM Corp. 1999,2013
  *
- *  Derived from "include/asm-i386/bitops.h"
- *    Copyright (C) 1992, Linus Torvalds
+ *    Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>,
+ *
+ * The description below was taken in large parts from the powerpc
+ * bitops header file:
+ * Within a word, bits are numbered LSB first.  Lot's of places make
+ * this assumption by directly testing bits with (val & (1<<nr)).
+ * This can cause confusion for large (> 1 word) bitmaps on a
+ * big-endian system because, unlike little endian, the number of each
+ * bit depends on the word size.
+ *
+ * The bitop functions are defined to work on unsigned longs, so for an
+ * s390x system the bits end up numbered:
+ *   |63..............0|127............64|191...........128|255...........196|
+ * and on s390:
+ *   |31.....0|63....31|95....64|127...96|159..128|191..160|223..192|255..224|
+ *
+ * There are a few little-endian macros used mostly for filesystem
+ * bitmaps, these work on similar bit arrays layouts, but
+ * byte-oriented:
+ *   |7...0|15...8|23...16|31...24|39...32|47...40|55...48|63...56|
+ *
+ * The main difference is that bit 3-5 (64b) or 3-4 (32b) in the bit
+ * number field needs to be reversed compared to the big-endian bit
+ * fields. This can be achieved by XOR with 0x38 (64b) or 0x18 (32b).
+ *
+ * We also have special functions which work with an MSB0 encoding:
+ * on an s390x system the bits are numbered:
+ *   |0..............63|64............127|128...........191|192...........255|
+ * and on s390:
+ *   |0.....31|31....63|64....95|96...127|128..159|160..191|192..223|224..255|
+ *
+ * The main difference is that bit 0-63 (64b) or 0-31 (32b) in the bit
+ * number field needs to be reversed compared to the LSB0 encoded bit
+ * fields. This can be achieved by XOR with 0x3f (64b) or 0x1f (32b).
  *
  */
 
@@ -18,46 +48,6 @@
 #include <linux/typecheck.h>
 #include <linux/compiler.h>
 
-/*
- * 32 bit bitops format:
- * bit 0 is the LSB of *addr; bit 31 is the MSB of *addr;
- * bit 32 is the LSB of *(addr+4). That combined with the
- * big endian byte order on S390 give the following bit
- * order in memory:
- *    1f 1e 1d 1c 1b 1a 19 18 17 16 15 14 13 12 11 10 \
- *    0f 0e 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00
- * after that follows the next long with bit numbers
- *    3f 3e 3d 3c 3b 3a 39 38 37 36 35 34 33 32 31 30
- *    2f 2e 2d 2c 2b 2a 29 28 27 26 25 24 23 22 21 20
- * The reason for this bit ordering is the fact that
- * in the architecture independent code bits operations
- * of the form "flags |= (1 << bitnr)" are used INTERMIXED
- * with operation of the form "set_bit(bitnr, flags)".
- *
- * 64 bit bitops format:
- * bit 0 is the LSB of *addr; bit 63 is the MSB of *addr;
- * bit 64 is the LSB of *(addr+8). That combined with the
- * big endian byte order on S390 give the following bit
- * order in memory:
- *    3f 3e 3d 3c 3b 3a 39 38 37 36 35 34 33 32 31 30
- *    2f 2e 2d 2c 2b 2a 29 28 27 26 25 24 23 22 21 20
- *    1f 1e 1d 1c 1b 1a 19 18 17 16 15 14 13 12 11 10
- *    0f 0e 0d 0c 0b 0a 09 08 07 06 05 04 03 02 01 00
- * after that follows the next long with bit numbers
- *    7f 7e 7d 7c 7b 7a 79 78 77 76 75 74 73 72 71 70
- *    6f 6e 6d 6c 6b 6a 69 68 67 66 65 64 63 62 61 60
- *    5f 5e 5d 5c 5b 5a 59 58 57 56 55 54 53 52 51 50
- *    4f 4e 4d 4c 4b 4a 49 48 47 46 45 44 43 42 41 40
- * The reason for this bit ordering is the fact that
- * in the architecture independent code bits operations
- * of the form "flags |= (1 << bitnr)" are used INTERMIXED
- * with operation of the form "set_bit(bitnr, flags)".
- */
-
-/* bitmap tables from arch/s390/kernel/bitmap.c */
-extern const char _zb_findmap[];
-extern const char _sb_findmap[];
-
 #ifndef CONFIG_64BIT
 
 #define __BITOPS_OR		"or"
@@ -310,522 +300,24 @@ static inline int test_bit(unsigned long nr, const volatile unsigned long *ptr)
 }
 
 /*
- * Optimized find bit helper functions.
- */
-
-/**
- * __ffz_word_loop - find byte offset of first long != -1UL
- * @addr: pointer to array of unsigned long
- * @size: size of the array in bits
- */
-static inline unsigned long __ffz_word_loop(const unsigned long *addr,
-					    unsigned long size)
-{
-	typedef struct { long _[__BITOPS_WORDS(size)]; } addrtype;
-	unsigned long bytes = 0;
-
-	asm volatile(
-#ifndef CONFIG_64BIT
-		"	ahi	%1,-1\n"
-		"	sra	%1,5\n"
-		"	jz	1f\n"
-		"0:	c	%2,0(%0,%3)\n"
-		"	jne	1f\n"
-		"	la	%0,4(%0)\n"
-		"	brct	%1,0b\n"
-		"1:\n"
-#else
-		"	aghi	%1,-1\n"
-		"	srag	%1,%1,6\n"
-		"	jz	1f\n"
-		"0:	cg	%2,0(%0,%3)\n"
-		"	jne	1f\n"
-		"	la	%0,8(%0)\n"
-		"	brct	%1,0b\n"
-		"1:\n"
-#endif
-		: "+&a" (bytes), "+&d" (size)
-		: "d" (-1UL), "a" (addr), "m" (*(addrtype *) addr)
-		: "cc" );
-	return bytes;
-}
-
-/**
- * __ffs_word_loop - find byte offset of first long != 0UL
- * @addr: pointer to array of unsigned long
- * @size: size of the array in bits
- */
-static inline unsigned long __ffs_word_loop(const unsigned long *addr,
-					    unsigned long size)
-{
-	typedef struct { long _[__BITOPS_WORDS(size)]; } addrtype;
-	unsigned long bytes = 0;
-
-	asm volatile(
-#ifndef CONFIG_64BIT
-		"	ahi	%1,-1\n"
-		"	sra	%1,5\n"
-		"	jz	1f\n"
-		"0:	c	%2,0(%0,%3)\n"
-		"	jne	1f\n"
-		"	la	%0,4(%0)\n"
-		"	brct	%1,0b\n"
-		"1:\n"
-#else
-		"	aghi	%1,-1\n"
-		"	srag	%1,%1,6\n"
-		"	jz	1f\n"
-		"0:	cg	%2,0(%0,%3)\n"
-		"	jne	1f\n"
-		"	la	%0,8(%0)\n"
-		"	brct	%1,0b\n"
-		"1:\n"
-#endif
-		: "+&a" (bytes), "+&a" (size)
-		: "d" (0UL), "a" (addr), "m" (*(addrtype *) addr)
-		: "cc" );
-	return bytes;
-}
-
-/**
- * __ffz_word - add number of the first unset bit
- * @nr: base value the bit number is added to
- * @word: the word that is searched for unset bits
- */
-static inline unsigned long __ffz_word(unsigned long nr, unsigned long word)
-{
-#ifdef CONFIG_64BIT
-	if ((word & 0xffffffff) == 0xffffffff) {
-		word >>= 32;
-		nr += 32;
-	}
-#endif
-	if ((word & 0xffff) == 0xffff) {
-		word >>= 16;
-		nr += 16;
-	}
-	if ((word & 0xff) == 0xff) {
-		word >>= 8;
-		nr += 8;
-	}
-	return nr + _zb_findmap[(unsigned char) word];
-}
-
-/**
- * __ffs_word - add number of the first set bit
- * @nr: base value the bit number is added to
- * @word: the word that is searched for set bits
- */
-static inline unsigned long __ffs_word(unsigned long nr, unsigned long word)
-{
-#ifdef CONFIG_64BIT
-	if ((word & 0xffffffff) == 0) {
-		word >>= 32;
-		nr += 32;
-	}
-#endif
-	if ((word & 0xffff) == 0) {
-		word >>= 16;
-		nr += 16;
-	}
-	if ((word & 0xff) == 0) {
-		word >>= 8;
-		nr += 8;
-	}
-	return nr + _sb_findmap[(unsigned char) word];
-}
-
-
-/**
- * __load_ulong_be - load big endian unsigned long
- * @p: pointer to array of unsigned long
- * @offset: byte offset of source value in the array
- */
-static inline unsigned long __load_ulong_be(const unsigned long *p,
-					    unsigned long offset)
-{
-	p = (unsigned long *)((unsigned long) p + offset);
-	return *p;
-}
-
-/**
- * __load_ulong_le - load little endian unsigned long
- * @p: pointer to array of unsigned long
- * @offset: byte offset of source value in the array
- */
-static inline unsigned long __load_ulong_le(const unsigned long *p,
-					    unsigned long offset)
-{
-	unsigned long word;
-
-	p = (unsigned long *)((unsigned long) p + offset);
-#ifndef CONFIG_64BIT
-	asm volatile(
-		"	ic	%0,%O1(%R1)\n"
-		"	icm	%0,2,%O1+1(%R1)\n"
-		"	icm	%0,4,%O1+2(%R1)\n"
-		"	icm	%0,8,%O1+3(%R1)"
-		: "=&d" (word) : "Q" (*p) : "cc");
-#else
-	asm volatile(
-		"	lrvg	%0,%1"
-		: "=d" (word) : "m" (*p) );
-#endif
-	return word;
-}
-
-/*
- * The various find bit functions.
- */
-
-/*
- * ffz - find first zero in word.
- * @word: The word to search
- *
- * Undefined if no zero exists, so code should check against ~0UL first.
- */
-static inline unsigned long ffz(unsigned long word)
-{
-	return __ffz_word(0, word);
-}
-
-/**
- * __ffs - find first bit in word.
- * @word: The word to search
- *
- * Undefined if no bit exists, so code should check against 0 first.
- */
-static inline unsigned long __ffs (unsigned long word)
-{
-	return __ffs_word(0, word);
-}
-
-/**
- * ffs - find first bit set
- * @x: the word to search
- *
- * This is defined the same way as
- * the libc and compiler builtin ffs routines, therefore
- * differs in spirit from the above ffz (man ffs).
- */
-static inline int ffs(int x)
-{
-	if (!x)
-		return 0;
-	return __ffs_word(1, x);
-}
-
-/**
- * find_first_zero_bit - find the first zero bit in a memory region
- * @addr: The address to start the search at
- * @size: The maximum size to search
- *
- * Returns the bit-number of the first zero bit, not the number of the byte
- * containing a bit.
- */
-static inline unsigned long find_first_zero_bit(const unsigned long *addr,
-						unsigned long size)
-{
-	unsigned long bytes, bits;
-
-        if (!size)
-                return 0;
-	bytes = __ffz_word_loop(addr, size);
-	bits = __ffz_word(bytes*8, __load_ulong_be(addr, bytes));
-	return (bits < size) ? bits : size;
-}
-#define find_first_zero_bit find_first_zero_bit
-
-/**
- * find_first_bit - find the first set bit in a memory region
- * @addr: The address to start the search at
- * @size: The maximum size to search
- *
- * Returns the bit-number of the first set bit, not the number of the byte
- * containing a bit.
- */
-static inline unsigned long find_first_bit(const unsigned long * addr,
-					   unsigned long size)
-{
-	unsigned long bytes, bits;
-
-        if (!size)
-                return 0;
-	bytes = __ffs_word_loop(addr, size);
-	bits = __ffs_word(bytes*8, __load_ulong_be(addr, bytes));
-	return (bits < size) ? bits : size;
-}
-#define find_first_bit find_first_bit
-
-/*
- * Big endian variant whichs starts bit counting from left using
- * the flogr (find leftmost one) instruction.
+ * ATTENTION:
+ * find_first_bit_left() and find_next_bit_left() use MSB0 encoding.
  */
-static inline unsigned long __flo_word(unsigned long nr, unsigned long val)
-{
-	register unsigned long bit asm("2") = val;
-	register unsigned long out asm("3");
-
-	asm volatile (
-		"	.insn	rre,0xb9830000,%[bit],%[bit]\n"
-		: [bit] "+d" (bit), [out] "=d" (out) : : "cc");
-	return nr + bit;
-}
-
-/*
- * 64 bit special left bitops format:
- * order in memory:
- *    00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f
- *    10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f
- *    20 21 22 23 24 25 26 27 28 29 2a 2b 2c 2d 2e 2f
- *    30 31 32 33 34 35 36 37 38 39 3a 3b 3c 3d 3e 3f
- * after that follows the next long with bit numbers
- *    40 41 42 43 44 45 46 47 48 49 4a 4b 4c 4d 4e 4f
- *    50 51 52 53 54 55 56 57 58 59 5a 5b 5c 5d 5e 5f
- *    60 61 62 63 64 65 66 67 68 69 6a 6b 6c 6d 6e 6f
- *    70 71 72 73 74 75 76 77 78 79 7a 7b 7c 7d 7e 7f
- * The reason for this bit ordering is the fact that
- * the hardware sets bits in a bitmap starting at bit 0
- * and we don't want to scan the bitmap from the 'wrong
- * end'.
- */
-static inline unsigned long find_first_bit_left(const unsigned long *addr,
-						unsigned long size)
-{
-	unsigned long bytes, bits;
-
-	if (!size)
-		return 0;
-	bytes = __ffs_word_loop(addr, size);
-	bits = __flo_word(bytes * 8, __load_ulong_be(addr, bytes));
-	return (bits < size) ? bits : size;
-}
+unsigned long find_first_bit_left(const unsigned long *addr, unsigned long size);
+unsigned long find_next_bit_left(const unsigned long *addr, unsigned long size,
+				 unsigned long offset);
 
-static inline int find_next_bit_left(const unsigned long *addr,
-				     unsigned long size,
-				     unsigned long offset)
-{
-	const unsigned long *p;
-	unsigned long bit, set;
-
-	if (offset >= size)
-		return size;
-	bit = offset & (BITS_PER_LONG - 1);
-	offset -= bit;
-	size -= offset;
-	p = addr + offset / BITS_PER_LONG;
-	if (bit) {
-		set = __flo_word(0, *p & (~0UL >> bit));
-		if (set >= size)
-			return size + offset;
-		if (set < BITS_PER_LONG)
-			return set + offset;
-		offset += BITS_PER_LONG;
-		size -= BITS_PER_LONG;
-		p++;
-	}
-	return offset + find_first_bit_left(p, size);
-}
-
-#define for_each_set_bit_left(bit, addr, size)				\
-	for ((bit) = find_first_bit_left((addr), (size));		\
-	     (bit) < (size);						\
-	     (bit) = find_next_bit_left((addr), (size), (bit) + 1))
-
-/* same as for_each_set_bit() but use bit as value to start with */
-#define for_each_set_bit_left_cont(bit, addr, size)			\
-	for ((bit) = find_next_bit_left((addr), (size), (bit));		\
-	     (bit) < (size);						\
-	     (bit) = find_next_bit_left((addr), (size), (bit) + 1))
-
-/**
- * find_next_zero_bit - find the first zero bit in a memory region
- * @addr: The address to base the search on
- * @offset: The bitnumber to start searching at
- * @size: The maximum size to search
- */
-static inline int find_next_zero_bit (const unsigned long * addr,
-				      unsigned long size,
-				      unsigned long offset)
-{
-        const unsigned long *p;
-	unsigned long bit, set;
-
-	if (offset >= size)
-		return size;
-	bit = offset & (BITS_PER_LONG - 1);
-	offset -= bit;
-	size -= offset;
-	p = addr + offset / BITS_PER_LONG;
-	if (bit) {
-		/*
-		 * __ffz_word returns BITS_PER_LONG
-		 * if no zero bit is present in the word.
-		 */
-		set = __ffz_word(bit, *p >> bit);
-		if (set >= size)
-			return size + offset;
-		if (set < BITS_PER_LONG)
-			return set + offset;
-		offset += BITS_PER_LONG;
-		size -= BITS_PER_LONG;
-		p++;
-	}
-	return offset + find_first_zero_bit(p, size);
-}
-#define find_next_zero_bit find_next_zero_bit
-
-/**
- * find_next_bit - find the first set bit in a memory region
- * @addr: The address to base the search on
- * @offset: The bitnumber to start searching at
- * @size: The maximum size to search
- */
-static inline int find_next_bit (const unsigned long * addr,
-				 unsigned long size,
-				 unsigned long offset)
-{
-        const unsigned long *p;
-	unsigned long bit, set;
-
-	if (offset >= size)
-		return size;
-	bit = offset & (BITS_PER_LONG - 1);
-	offset -= bit;
-	size -= offset;
-	p = addr + offset / BITS_PER_LONG;
-	if (bit) {
-		/*
-		 * __ffs_word returns BITS_PER_LONG
-		 * if no one bit is present in the word.
-		 */
-		set = __ffs_word(0, *p & (~0UL << bit));
-		if (set >= size)
-			return size + offset;
-		if (set < BITS_PER_LONG)
-			return set + offset;
-		offset += BITS_PER_LONG;
-		size -= BITS_PER_LONG;
-		p++;
-	}
-	return offset + find_first_bit(p, size);
-}
-#define find_next_bit find_next_bit
-
-/*
- * Every architecture must define this function. It's the fastest
- * way of searching a 140-bit bitmap where the first 100 bits are
- * unlikely to be set. It's guaranteed that at least one of the 140
- * bits is cleared.
- */
-static inline int sched_find_first_bit(unsigned long *b)
-{
-	return find_first_bit(b, 140);
-}
-
-#include <asm-generic/bitops/fls.h>
+#include <asm-generic/bitops/__ffs.h>
+#include <asm-generic/bitops/ffs.h>
 #include <asm-generic/bitops/__fls.h>
+#include <asm-generic/bitops/fls.h>
 #include <asm-generic/bitops/fls64.h>
-
+#include <asm-generic/bitops/ffz.h>
+#include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/hweight.h>
 #include <asm-generic/bitops/lock.h>
-
-/*
- * ATTENTION: intel byte ordering convention for ext2 and minix !!
- * bit 0 is the LSB of addr; bit 31 is the MSB of addr;
- * bit 32 is the LSB of (addr+4).
- * That combined with the little endian byte order of Intel gives the
- * following bit order in memory:
- *    07 06 05 04 03 02 01 00 15 14 13 12 11 10 09 08 \
- *    23 22 21 20 19 18 17 16 31 30 29 28 27 26 25 24
- */
-
-static inline int find_first_zero_bit_le(void *vaddr, unsigned int size)
-{
-	unsigned long bytes, bits;
-
-        if (!size)
-                return 0;
-	bytes = __ffz_word_loop(vaddr, size);
-	bits = __ffz_word(bytes*8, __load_ulong_le(vaddr, bytes));
-	return (bits < size) ? bits : size;
-}
-#define find_first_zero_bit_le find_first_zero_bit_le
-
-static inline int find_next_zero_bit_le(void *vaddr, unsigned long size,
-					  unsigned long offset)
-{
-        unsigned long *addr = vaddr, *p;
-	unsigned long bit, set;
-
-        if (offset >= size)
-                return size;
-	bit = offset & (BITS_PER_LONG - 1);
-	offset -= bit;
-	size -= offset;
-	p = addr + offset / BITS_PER_LONG;
-        if (bit) {
-		/*
-		 * s390 version of ffz returns BITS_PER_LONG
-		 * if no zero bit is present in the word.
-		 */
-		set = __ffz_word(bit, __load_ulong_le(p, 0) >> bit);
-		if (set >= size)
-			return size + offset;
-		if (set < BITS_PER_LONG)
-			return set + offset;
-		offset += BITS_PER_LONG;
-		size -= BITS_PER_LONG;
-		p++;
-        }
-	return offset + find_first_zero_bit_le(p, size);
-}
-#define find_next_zero_bit_le find_next_zero_bit_le
-
-static inline unsigned long find_first_bit_le(void *vaddr, unsigned long size)
-{
-	unsigned long bytes, bits;
-
-	if (!size)
-		return 0;
-	bytes = __ffs_word_loop(vaddr, size);
-	bits = __ffs_word(bytes*8, __load_ulong_le(vaddr, bytes));
-	return (bits < size) ? bits : size;
-}
-#define find_first_bit_le find_first_bit_le
-
-static inline int find_next_bit_le(void *vaddr, unsigned long size,
-				     unsigned long offset)
-{
-	unsigned long *addr = vaddr, *p;
-	unsigned long bit, set;
-
-	if (offset >= size)
-		return size;
-	bit = offset & (BITS_PER_LONG - 1);
-	offset -= bit;
-	size -= offset;
-	p = addr + offset / BITS_PER_LONG;
-	if (bit) {
-		/*
-		 * s390 version of ffz returns BITS_PER_LONG
-		 * if no zero bit is present in the word.
-		 */
-		set = __ffs_word(0, __load_ulong_le(p, 0) & (~0UL << bit));
-		if (set >= size)
-			return size + offset;
-		if (set < BITS_PER_LONG)
-			return set + offset;
-		offset += BITS_PER_LONG;
-		size -= BITS_PER_LONG;
-		p++;
-	}
-	return offset + find_first_bit_le(p, size);
-}
-#define find_next_bit_le find_next_bit_le
-
+#include <asm-generic/bitops/sched.h>
 #include <asm-generic/bitops/le.h>
-
 #include <asm-generic/bitops/ext2-atomic-setbit.h>
 
 #endif /* _S390_BITOPS_H */
diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index 4bb2a4656163..2403303cfed7 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -28,7 +28,7 @@ CFLAGS_ptrace.o		+= -DUTS_MACHINE='"$(UTS_MACHINE)"'
 
 CFLAGS_sysinfo.o += -Iinclude/math-emu -Iarch/s390/math-emu -w
 
-obj-y	:= bitmap.o traps.o time.o process.o base.o early.o setup.o vtime.o
+obj-y	:= traps.o time.o process.o base.o early.o setup.o vtime.o
 obj-y	+= processor.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o nmi.o
 obj-y	+= debug.o irq.o ipl.o dis.o diag.o sclp.o vdso.o
 obj-y	+= sysinfo.o jump_label.o lgr.o os_info.o machine_kexec.o pgm_check.o
diff --git a/arch/s390/kernel/bitmap.c b/arch/s390/kernel/bitmap.c
deleted file mode 100644
index 5cdb813fd77f..000000000000
--- a/arch/s390/kernel/bitmap.c
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- *    Bitmaps for set_bit, clear_bit, test_and_set_bit, ...
- *    See include/asm/{bitops.h|posix_types.h} for details
- *
- *    Copyright IBM Corp. 1999, 2009
- *    Author(s): Martin Schwidefsky <schwidefsky@de.ibm.com>,
- */
-
-#include <linux/bitops.h>
-#include <linux/module.h>
-
-const char _zb_findmap[] = {
-	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
-	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,
-	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
-	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,6,
-	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
-	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,
-	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
-	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,7,
-	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
-	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,
-	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
-	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,6,
-	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
-	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,5,
-	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,4,
-	0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,8 };
-EXPORT_SYMBOL(_zb_findmap);
-
-const char _sb_findmap[] = {
-	8,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
-	4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
-	5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
-	4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
-	6,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
-	4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
-	5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
-	4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
-	7,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
-	4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
-	5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
-	4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
-	6,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
-	4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
-	5,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0,
-	4,0,1,0,2,0,1,0,3,0,1,0,2,0,1,0 };
-EXPORT_SYMBOL(_sb_findmap);
diff --git a/arch/s390/lib/Makefile b/arch/s390/lib/Makefile
index 20b0e97a7df2..e506c5fb6f6a 100644
--- a/arch/s390/lib/Makefile
+++ b/arch/s390/lib/Makefile
@@ -2,7 +2,7 @@
 # Makefile for s390-specific library files..
 #
 
-lib-y += delay.o string.o uaccess_std.o uaccess_pt.o
+lib-y += delay.o string.o uaccess_std.o uaccess_pt.o find.o
 obj-$(CONFIG_32BIT) += div64.o qrnnd.o ucmpdi2.o mem32.o
 obj-$(CONFIG_64BIT) += mem64.o
 lib-$(CONFIG_64BIT) += uaccess_mvcos.o
diff --git a/arch/s390/lib/find.c b/arch/s390/lib/find.c
new file mode 100644
index 000000000000..8963929b06b9
--- /dev/null
+++ b/arch/s390/lib/find.c
@@ -0,0 +1,77 @@
+/*
+ * MSB0 numbered special bitops handling.
+ *
+ * On s390x the bits are numbered:
+ *   |0..............63|64............127|128...........191|192...........255|
+ * and on s390:
+ *   |0.....31|31....63|64....95|96...127|128..159|160..191|192..223|224..255|
+ *
+ * The reason for this bit numbering is the fact that the hardware sets bits
+ * in a bitmap starting at bit 0 (MSB) and we don't want to scan the bitmap
+ * from the 'wrong end'.
+ */
+
+#include <linux/compiler.h>
+#include <linux/bitops.h>
+#include <linux/export.h>
+
+unsigned long find_first_bit_left(const unsigned long *addr, unsigned long size)
+{
+	const unsigned long *p = addr;
+	unsigned long result = 0;
+	unsigned long tmp;
+
+	while (size & ~(BITS_PER_LONG - 1)) {
+		if ((tmp = *(p++)))
+			goto found;
+		result += BITS_PER_LONG;
+		size -= BITS_PER_LONG;
+	}
+	if (!size)
+		return result;
+	tmp = (*p) & (~0UL << (BITS_PER_LONG - size));
+	if (!tmp)		/* Are any bits set? */
+		return result + size;	/* Nope. */
+found:
+	return result + (__fls(tmp) ^ (BITS_PER_LONG - 1));
+}
+EXPORT_SYMBOL(find_first_bit_left);
+
+unsigned long find_next_bit_left(const unsigned long *addr, unsigned long size,
+				 unsigned long offset)
+{
+	const unsigned long *p = addr + (offset / BITS_PER_LONG);
+	unsigned long result = offset & ~(BITS_PER_LONG - 1);
+	unsigned long tmp;
+
+	if (offset >= size)
+		return size;
+	size -= result;
+	offset %= BITS_PER_LONG;
+	if (offset) {
+		tmp = *(p++);
+		tmp &= (~0UL >> offset);
+		if (size < BITS_PER_LONG)
+			goto found_first;
+		if (tmp)
+			goto found_middle;
+		size -= BITS_PER_LONG;
+		result += BITS_PER_LONG;
+	}
+	while (size & ~(BITS_PER_LONG-1)) {
+		if ((tmp = *(p++)))
+			goto found_middle;
+		result += BITS_PER_LONG;
+		size -= BITS_PER_LONG;
+	}
+	if (!size)
+		return result;
+	tmp = *p;
+found_first:
+	tmp &= (~0UL << (BITS_PER_LONG - size));
+	if (!tmp)		/* Are any bits set? */
+		return result + size;	/* Nope. */
+found_middle:
+	return result + (__fls(tmp) ^ (BITS_PER_LONG - 1));
+}
+EXPORT_SYMBOL(find_next_bit_left);
-- 
cgit 


From b1cb7e2b6c3e8758e7406422b66c54c066737977 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Thu, 19 Sep 2013 11:05:32 +0200
Subject: s390/bitops: use flogr instruction to implement __ffs, ffs, __fls,
 fls and fls64

Since z9 109 we have the flogr instruction which can be used to implement
optimized versions of __ffs, ffs, __fls, fls and fls64.
So implement and use them, instead of the generic variants.
This reduces the size of the kernel image (defconfig, -march=z9-109)
by 19,648 bytes.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/bitops.h | 125 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)

diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index e5ca8598c06b..c6dbd6115cc5 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -307,11 +307,136 @@ unsigned long find_first_bit_left(const unsigned long *addr, unsigned long size)
 unsigned long find_next_bit_left(const unsigned long *addr, unsigned long size,
 				 unsigned long offset);
 
+#ifdef CONFIG_HAVE_MARCH_Z9_109_FEATURES
+
+/**
+ * __flogr - find leftmost one
+ * @word - The word to search
+ *
+ * Returns the bit number of the most significant bit set,
+ * where the most significant bit has bit number 0.
+ * If no bit is set this function returns 64.
+ */
+static inline unsigned char __flogr(unsigned long word)
+{
+	if (__builtin_constant_p(word)) {
+		unsigned long bit = 0;
+
+		if (!word)
+			return 64;
+		if (!(word & 0xffffffff00000000UL)) {
+			word <<= 32;
+			bit += 32;
+		}
+		if (!(word & 0xffff000000000000UL)) {
+			word <<= 16;
+			bit += 16;
+		}
+		if (!(word & 0xff00000000000000UL)) {
+			word <<= 8;
+			bit += 8;
+		}
+		if (!(word & 0xf000000000000000UL)) {
+			word <<= 4;
+			bit += 4;
+		}
+		if (!(word & 0xc000000000000000UL)) {
+			word <<= 2;
+			bit += 2;
+		}
+		if (!(word & 0x8000000000000000UL)) {
+			word <<= 1;
+			bit += 1;
+		}
+		return bit;
+	} else {
+		register unsigned long bit asm("4") = word;
+		register unsigned long out asm("5");
+
+		asm volatile(
+			"       flogr   %[bit],%[bit]\n"
+			: [bit] "+d" (bit), [out] "=d" (out) : : "cc");
+		return bit;
+	}
+}
+
+/**
+ * __ffs - find first bit in word.
+ * @word: The word to search
+ *
+ * Undefined if no bit exists, so code should check against 0 first.
+ */
+static inline unsigned long __ffs(unsigned long word)
+{
+	return __flogr(-word & word) ^ (BITS_PER_LONG - 1);
+}
+
+/**
+ * ffs - find first bit set
+ * @word: the word to search
+ *
+ * This is defined the same way as the libc and
+ * compiler builtin ffs routines (man ffs).
+ */
+static inline int ffs(int word)
+{
+	unsigned long mask = 2 * BITS_PER_LONG - 1;
+	unsigned int val = (unsigned int)word;
+
+	return (1 + (__flogr(-val & val) ^ (BITS_PER_LONG - 1))) & mask;
+}
+
+/**
+ * __fls - find last (most-significant) set bit in a long word
+ * @word: the word to search
+ *
+ * Undefined if no set bit exists, so code should check against 0 first.
+ */
+static inline unsigned long __fls(unsigned long word)
+{
+	return __flogr(word) ^ (BITS_PER_LONG - 1);
+}
+
+/**
+ * fls64 - find last set bit in a 64-bit word
+ * @word: the word to search
+ *
+ * This is defined in a similar way as the libc and compiler builtin
+ * ffsll, but returns the position of the most significant set bit.
+ *
+ * fls64(value) returns 0 if value is 0 or the position of the last
+ * set bit if value is nonzero. The last (most significant) bit is
+ * at position 64.
+ */
+static inline int fls64(unsigned long word)
+{
+	unsigned long mask = 2 * BITS_PER_LONG - 1;
+
+	return (1 + (__flogr(word) ^ (BITS_PER_LONG - 1))) & mask;
+}
+
+/**
+ * fls - find last (most-significant) bit set
+ * @word: the word to search
+ *
+ * This is defined the same way as ffs.
+ * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
+ */
+static inline int fls(int word)
+{
+	return fls64((unsigned int)word);
+}
+
+#else /* CONFIG_HAVE_MARCH_Z9_109_FEATURES */
+
 #include <asm-generic/bitops/__ffs.h>
 #include <asm-generic/bitops/ffs.h>
 #include <asm-generic/bitops/__fls.h>
 #include <asm-generic/bitops/fls.h>
 #include <asm-generic/bitops/fls64.h>
+
+#endif /* CONFIG_HAVE_MARCH_Z9_109_FEATURES */
+
 #include <asm-generic/bitops/ffz.h>
 #include <asm-generic/bitops/find.h>
 #include <asm-generic/bitops/hweight.h>
-- 
cgit 


From 7d7c7b24e416afb2637be8447e03ca4457c100fd Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 23 Sep 2013 12:01:44 +0200
Subject: s390/bitops: rename find_first_bit_left() to find_first_bit_inv()

find_first_bit_left() and friends have nothing to do with the normal
LSB0 bit numbering for big endian machines used in Linux (least
significant bit has bit number 0).
Instead they use MSB0 bit numbering, where the most signficant bit has
bit number 0. So rename find_first_bit_left() and friends to
find_first_bit_inv(), to avoid any confusion.
Also provide inv versions of set_bit, clear_bit and test_bit.

This also removes the confusing use of e.g. set_bit() in airq.c which
uses a "be_to_le" bit number conversion, which could imply that instead
set_bit_le() could be used. But that is entirely wrong since the _le
bitops variant uses yet another bit numbering scheme.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/bitops.h | 39 ++++++++++++++++++++++++++++++++++-----
 arch/s390/lib/find.c           | 10 +++++-----
 drivers/s390/cio/airq.c        | 19 +++++++------------
 3 files changed, 46 insertions(+), 22 deletions(-)

diff --git a/arch/s390/include/asm/bitops.h b/arch/s390/include/asm/bitops.h
index c6dbd6115cc5..6e6ad0680829 100644
--- a/arch/s390/include/asm/bitops.h
+++ b/arch/s390/include/asm/bitops.h
@@ -300,12 +300,41 @@ static inline int test_bit(unsigned long nr, const volatile unsigned long *ptr)
 }
 
 /*
- * ATTENTION:
- * find_first_bit_left() and find_next_bit_left() use MSB0 encoding.
+ * Functions which use MSB0 bit numbering.
+ * On an s390x system the bits are numbered:
+ *   |0..............63|64............127|128...........191|192...........255|
+ * and on s390:
+ *   |0.....31|31....63|64....95|96...127|128..159|160..191|192..223|224..255|
  */
-unsigned long find_first_bit_left(const unsigned long *addr, unsigned long size);
-unsigned long find_next_bit_left(const unsigned long *addr, unsigned long size,
-				 unsigned long offset);
+unsigned long find_first_bit_inv(const unsigned long *addr, unsigned long size);
+unsigned long find_next_bit_inv(const unsigned long *addr, unsigned long size,
+				unsigned long offset);
+
+static inline void set_bit_inv(unsigned long nr, volatile unsigned long *ptr)
+{
+	return set_bit(nr ^ (BITS_PER_LONG - 1), ptr);
+}
+
+static inline void clear_bit_inv(unsigned long nr, volatile unsigned long *ptr)
+{
+	return clear_bit(nr ^ (BITS_PER_LONG - 1), ptr);
+}
+
+static inline void __set_bit_inv(unsigned long nr, volatile unsigned long *ptr)
+{
+	return __set_bit(nr ^ (BITS_PER_LONG - 1), ptr);
+}
+
+static inline void __clear_bit_inv(unsigned long nr, volatile unsigned long *ptr)
+{
+	return __clear_bit(nr ^ (BITS_PER_LONG - 1), ptr);
+}
+
+static inline int test_bit_inv(unsigned long nr,
+			       const volatile unsigned long *ptr)
+{
+	return test_bit(nr ^ (BITS_PER_LONG - 1), ptr);
+}
 
 #ifdef CONFIG_HAVE_MARCH_Z9_109_FEATURES
 
diff --git a/arch/s390/lib/find.c b/arch/s390/lib/find.c
index 8963929b06b9..620d34d6487e 100644
--- a/arch/s390/lib/find.c
+++ b/arch/s390/lib/find.c
@@ -15,7 +15,7 @@
 #include <linux/bitops.h>
 #include <linux/export.h>
 
-unsigned long find_first_bit_left(const unsigned long *addr, unsigned long size)
+unsigned long find_first_bit_inv(const unsigned long *addr, unsigned long size)
 {
 	const unsigned long *p = addr;
 	unsigned long result = 0;
@@ -35,10 +35,10 @@ unsigned long find_first_bit_left(const unsigned long *addr, unsigned long size)
 found:
 	return result + (__fls(tmp) ^ (BITS_PER_LONG - 1));
 }
-EXPORT_SYMBOL(find_first_bit_left);
+EXPORT_SYMBOL(find_first_bit_inv);
 
-unsigned long find_next_bit_left(const unsigned long *addr, unsigned long size,
-				 unsigned long offset)
+unsigned long find_next_bit_inv(const unsigned long *addr, unsigned long size,
+				unsigned long offset)
 {
 	const unsigned long *p = addr + (offset / BITS_PER_LONG);
 	unsigned long result = offset & ~(BITS_PER_LONG - 1);
@@ -74,4 +74,4 @@ found_first:
 found_middle:
 	return result + (__fls(tmp) ^ (BITS_PER_LONG - 1));
 }
-EXPORT_SYMBOL(find_next_bit_left);
+EXPORT_SYMBOL(find_next_bit_inv);
diff --git a/drivers/s390/cio/airq.c b/drivers/s390/cio/airq.c
index d028fd800c9c..f055df0b167f 100644
--- a/drivers/s390/cio/airq.c
+++ b/drivers/s390/cio/airq.c
@@ -194,15 +194,14 @@ EXPORT_SYMBOL(airq_iv_release);
  */
 unsigned long airq_iv_alloc_bit(struct airq_iv *iv)
 {
-	const unsigned long be_to_le = BITS_PER_LONG - 1;
 	unsigned long bit;
 
 	if (!iv->avail)
 		return -1UL;
 	spin_lock(&iv->lock);
-	bit = find_first_bit_left(iv->avail, iv->bits);
+	bit = find_first_bit_inv(iv->avail, iv->bits);
 	if (bit < iv->bits) {
-		clear_bit(bit ^ be_to_le, iv->avail);
+		clear_bit_inv(bit, iv->avail);
 		if (bit >= iv->end)
 			iv->end = bit + 1;
 	} else
@@ -220,19 +219,17 @@ EXPORT_SYMBOL(airq_iv_alloc_bit);
  */
 void airq_iv_free_bit(struct airq_iv *iv, unsigned long bit)
 {
-	const unsigned long be_to_le = BITS_PER_LONG - 1;
-
 	if (!iv->avail)
 		return;
 	spin_lock(&iv->lock);
 	/* Clear (possibly left over) interrupt bit */
-	clear_bit(bit ^ be_to_le, iv->vector);
+	clear_bit_inv(bit, iv->vector);
 	/* Make the bit position available again */
-	set_bit(bit ^ be_to_le, iv->avail);
+	set_bit_inv(bit, iv->avail);
 	if (bit == iv->end - 1) {
 		/* Find new end of bit-field */
 		while (--iv->end > 0)
-			if (!test_bit((iv->end - 1) ^ be_to_le, iv->avail))
+			if (!test_bit_inv(iv->end - 1, iv->avail))
 				break;
 	}
 	spin_unlock(&iv->lock);
@@ -251,15 +248,13 @@ EXPORT_SYMBOL(airq_iv_free_bit);
 unsigned long airq_iv_scan(struct airq_iv *iv, unsigned long start,
 			   unsigned long end)
 {
-	const unsigned long be_to_le = BITS_PER_LONG - 1;
 	unsigned long bit;
 
 	/* Find non-zero bit starting from 'ivs->next'. */
-	bit = find_next_bit_left(iv->vector, end, start);
+	bit = find_next_bit_inv(iv->vector, end, start);
 	if (bit >= end)
 		return -1UL;
-	/* Clear interrupt bit (find left uses big-endian bit numbers) */
-	clear_bit(bit ^ be_to_le, iv->vector);
+	clear_bit_inv(bit, iv->vector);
 	return bit;
 }
 EXPORT_SYMBOL(airq_iv_scan);
-- 
cgit 


From e258d719ff28ecc7a048eb8f78380e68c4b3a3f0 Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Tue, 24 Sep 2013 09:14:56 +0200
Subject: s390/uaccess: always run the kernel in home space

Simplify the uaccess code by removing the user_mode=home option.
The kernel will now always run in the home space mode.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/mmu_context.h |  10 +-
 arch/s390/include/asm/processor.h   |   8 +-
 arch/s390/include/asm/ptrace.h      |   7 +-
 arch/s390/include/asm/setup.h       |   7 -
 arch/s390/include/asm/uaccess.h     |  18 +--
 arch/s390/kernel/compat_signal.c    |   8 +-
 arch/s390/kernel/ipl.c              |   4 +-
 arch/s390/kernel/process.c          |   2 +-
 arch/s390/kernel/ptrace.c           |   4 +-
 arch/s390/kernel/runtime_instr.c    |   2 -
 arch/s390/kernel/setup.c            |  59 ++-----
 arch/s390/kernel/signal.c           |  12 +-
 arch/s390/kernel/smp.c              |   6 +-
 arch/s390/kernel/vdso.c             |   9 +-
 arch/s390/kernel/vtime.c            |   2 +-
 arch/s390/lib/Makefile              |   2 +-
 arch/s390/lib/uaccess_mvcos.c       |  30 ----
 arch/s390/lib/uaccess_pt.c          |   2 -
 arch/s390/lib/uaccess_std.c         | 305 ------------------------------------
 arch/s390/mm/fault.c                |   9 +-
 arch/s390/mm/pgtable.c              |   4 -
 21 files changed, 51 insertions(+), 459 deletions(-)
 delete mode 100644 arch/s390/lib/uaccess_std.c

diff --git a/arch/s390/include/asm/mmu_context.h b/arch/s390/include/asm/mmu_context.h
index 9f973d8de90e..5d1f950704dc 100644
--- a/arch/s390/include/asm/mmu_context.h
+++ b/arch/s390/include/asm/mmu_context.h
@@ -40,14 +40,8 @@ static inline void update_mm(struct mm_struct *mm, struct task_struct *tsk)
 	pgd_t *pgd = mm->pgd;
 
 	S390_lowcore.user_asce = mm->context.asce_bits | __pa(pgd);
-	if (s390_user_mode != HOME_SPACE_MODE) {
-		/* Load primary space page table origin. */
-		asm volatile(LCTL_OPCODE" 1,1,%0\n"
-			     : : "m" (S390_lowcore.user_asce) );
-	} else
-		/* Load home space page table origin. */
-		asm volatile(LCTL_OPCODE" 13,13,%0"
-			     : : "m" (S390_lowcore.user_asce) );
+	/* Load primary space page table origin. */
+	asm volatile(LCTL_OPCODE" 1,1,%0\n" : : "m" (S390_lowcore.user_asce));
 	set_fs(current->thread.mm_segment);
 }
 
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index 50256f05fbcf..3caaf6548ef5 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -134,14 +134,14 @@ struct stack_frame {
  * Do necessary setup to start up a new thread.
  */
 #define start_thread(regs, new_psw, new_stackp) do {			\
-	regs->psw.mask	= psw_user_bits | PSW_MASK_EA | PSW_MASK_BA;	\
+	regs->psw.mask	= PSW_USER_BITS | PSW_MASK_EA | PSW_MASK_BA;	\
 	regs->psw.addr	= new_psw | PSW_ADDR_AMODE;			\
 	regs->gprs[15]	= new_stackp;					\
 	execve_tail();							\
 } while (0)
 
 #define start_thread31(regs, new_psw, new_stackp) do {			\
-	regs->psw.mask	= psw_user_bits | PSW_MASK_BA;			\
+	regs->psw.mask	= PSW_USER_BITS | PSW_MASK_BA;			\
 	regs->psw.addr	= new_psw | PSW_ADDR_AMODE;			\
 	regs->gprs[15]	= new_stackp;					\
 	__tlb_flush_mm(current->mm);					\
@@ -343,9 +343,9 @@ __set_psw_mask(unsigned long mask)
 }
 
 #define local_mcck_enable() \
-	__set_psw_mask(psw_kernel_bits | PSW_MASK_DAT | PSW_MASK_MCHECK)
+	__set_psw_mask(PSW_KERNEL_BITS | PSW_MASK_DAT | PSW_MASK_MCHECK)
 #define local_mcck_disable() \
-	__set_psw_mask(psw_kernel_bits | PSW_MASK_DAT)
+	__set_psw_mask(PSW_KERNEL_BITS | PSW_MASK_DAT)
 
 /*
  * Basic Machine Check/Program Check Handler.
diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h
index 52b56533c57c..9c82cebddabd 100644
--- a/arch/s390/include/asm/ptrace.h
+++ b/arch/s390/include/asm/ptrace.h
@@ -10,8 +10,11 @@
 
 #ifndef __ASSEMBLY__
 
-extern long psw_kernel_bits;
-extern long psw_user_bits;
+#define PSW_KERNEL_BITS	(PSW_DEFAULT_KEY | PSW_MASK_BASE | PSW_ASC_HOME | \
+			 PSW_MASK_EA | PSW_MASK_BA)
+#define PSW_USER_BITS	(PSW_MASK_DAT | PSW_MASK_IO | PSW_MASK_EXT | \
+			 PSW_DEFAULT_KEY | PSW_MASK_BASE | PSW_MASK_MCHECK | \
+			 PSW_MASK_PSTATE | PSW_ASC_PRIMARY)
 
 /*
  * The pt_regs struct defines the way the registers are stored on
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index 59880dbaf360..df802ee14af6 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -48,13 +48,6 @@ void detect_memory_layout(struct mem_chunk chunk[], unsigned long maxsize);
 void create_mem_hole(struct mem_chunk mem_chunk[], unsigned long addr,
 		     unsigned long size);
 
-#define PRIMARY_SPACE_MODE	0
-#define ACCESS_REGISTER_MODE	1
-#define SECONDARY_SPACE_MODE	2
-#define HOME_SPACE_MODE		3
-
-extern unsigned int s390_user_mode;
-
 /*
  * Machine features detected in head.S
  */
diff --git a/arch/s390/include/asm/uaccess.h b/arch/s390/include/asm/uaccess.h
index 9c33ed4e666f..79330af9a5f8 100644
--- a/arch/s390/include/asm/uaccess.h
+++ b/arch/s390/include/asm/uaccess.h
@@ -94,9 +94,7 @@ static inline unsigned long extable_fixup(const struct exception_table_entry *x)
 
 struct uaccess_ops {
 	size_t (*copy_from_user)(size_t, const void __user *, void *);
-	size_t (*copy_from_user_small)(size_t, const void __user *, void *);
 	size_t (*copy_to_user)(size_t, void __user *, const void *);
-	size_t (*copy_to_user_small)(size_t, void __user *, const void *);
 	size_t (*copy_in_user)(size_t, void __user *, const void __user *);
 	size_t (*clear_user)(size_t, void __user *);
 	size_t (*strnlen_user)(size_t, const char __user *);
@@ -106,22 +104,20 @@ struct uaccess_ops {
 };
 
 extern struct uaccess_ops uaccess;
-extern struct uaccess_ops uaccess_std;
 extern struct uaccess_ops uaccess_mvcos;
-extern struct uaccess_ops uaccess_mvcos_switch;
 extern struct uaccess_ops uaccess_pt;
 
 extern int __handle_fault(unsigned long, unsigned long, int);
 
 static inline int __put_user_fn(size_t size, void __user *ptr, void *x)
 {
-	size = uaccess.copy_to_user_small(size, ptr, x);
+	size = uaccess.copy_to_user(size, ptr, x);
 	return size ? -EFAULT : size;
 }
 
 static inline int __get_user_fn(size_t size, const void __user *ptr, void *x)
 {
-	size = uaccess.copy_from_user_small(size, ptr, x);
+	size = uaccess.copy_from_user(size, ptr, x);
 	return size ? -EFAULT : size;
 }
 
@@ -226,10 +222,7 @@ extern int __get_user_bad(void) __attribute__((noreturn));
 static inline unsigned long __must_check
 __copy_to_user(void __user *to, const void *from, unsigned long n)
 {
-	if (__builtin_constant_p(n) && (n <= 256))
-		return uaccess.copy_to_user_small(n, to, from);
-	else
-		return uaccess.copy_to_user(n, to, from);
+	return uaccess.copy_to_user(n, to, from);
 }
 
 #define __copy_to_user_inatomic __copy_to_user
@@ -275,10 +268,7 @@ copy_to_user(void __user *to, const void *from, unsigned long n)
 static inline unsigned long __must_check
 __copy_from_user(void *to, const void __user *from, unsigned long n)
 {
-	if (__builtin_constant_p(n) && (n <= 256))
-		return uaccess.copy_from_user_small(n, from, to);
-	else
-		return uaccess.copy_from_user(n, from, to);
+	return uaccess.copy_from_user(n, from, to);
 }
 
 extern void copy_from_user_overflow(void)
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index adaa9e9478d8..ee820079c06d 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -188,8 +188,8 @@ static int restore_sigregs32(struct pt_regs *regs,_sigregs32 __user *sregs)
 		(__u64)(regs32.psw.mask & PSW32_MASK_USER) << 32 |
 		(__u64)(regs32.psw.addr & PSW32_ADDR_AMODE);
 	/* Check for invalid user address space control. */
-	if ((regs->psw.mask & PSW_MASK_ASC) >= (psw_kernel_bits & PSW_MASK_ASC))
-		regs->psw.mask = (psw_user_bits & PSW_MASK_ASC) |
+	if ((regs->psw.mask & PSW_MASK_ASC) == PSW_ASC_HOME)
+		regs->psw.mask = PSW_ASC_PRIMARY |
 			(regs->psw.mask & ~PSW_MASK_ASC);
 	regs->psw.addr = (__u64)(regs32.psw.addr & PSW32_ADDR_INSN);
 	for (i = 0; i < NUM_GPRS; i++)
@@ -348,7 +348,7 @@ static int setup_frame32(int sig, struct k_sigaction *ka,
 	regs->gprs[15] = (__force __u64) frame;
 	/* Force 31 bit amode and default user address space control. */
 	regs->psw.mask = PSW_MASK_BA |
-		(psw_user_bits & PSW_MASK_ASC) |
+		(PSW_USER_BITS & PSW_MASK_ASC) |
 		(regs->psw.mask & ~PSW_MASK_ASC);
 	regs->psw.addr = (__force __u64) ka->sa.sa_handler;
 
@@ -415,7 +415,7 @@ static int setup_rt_frame32(int sig, struct k_sigaction *ka, siginfo_t *info,
 	regs->gprs[15] = (__force __u64) frame;
 	/* Force 31 bit amode and default user address space control. */
 	regs->psw.mask = PSW_MASK_BA |
-		(psw_user_bits & PSW_MASK_ASC) |
+		(PSW_USER_BITS & PSW_MASK_ASC) |
 		(regs->psw.mask & ~PSW_MASK_ASC);
 	regs->psw.addr = (__u64 __force) ka->sa.sa_handler;
 
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index feb719d3c851..633ca7504536 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -2051,12 +2051,12 @@ void s390_reset_system(void (*func)(void *), void *data)
 	__ctl_clear_bit(0,28);
 
 	/* Set new machine check handler */
-	S390_lowcore.mcck_new_psw.mask = psw_kernel_bits | PSW_MASK_DAT;
+	S390_lowcore.mcck_new_psw.mask = PSW_KERNEL_BITS | PSW_MASK_DAT;
 	S390_lowcore.mcck_new_psw.addr =
 		PSW_ADDR_AMODE | (unsigned long) s390_base_mcck_handler;
 
 	/* Set new program check handler */
-	S390_lowcore.program_new_psw.mask = psw_kernel_bits | PSW_MASK_DAT;
+	S390_lowcore.program_new_psw.mask = PSW_KERNEL_BITS | PSW_MASK_DAT;
 	S390_lowcore.program_new_psw.addr =
 		PSW_ADDR_AMODE | (unsigned long) s390_base_pgm_handler;
 
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index c5dbb335716d..e1cdd31acabb 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -139,7 +139,7 @@ int copy_thread(unsigned long clone_flags, unsigned long new_stackp,
 	if (unlikely(p->flags & PF_KTHREAD)) {
 		/* kernel thread */
 		memset(&frame->childregs, 0, sizeof(struct pt_regs));
-		frame->childregs.psw.mask = psw_kernel_bits | PSW_MASK_DAT |
+		frame->childregs.psw.mask = PSW_KERNEL_BITS | PSW_MASK_DAT |
 				PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK;
 		frame->childregs.psw.addr = PSW_ADDR_AMODE |
 				(unsigned long) kernel_thread_starter;
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 9556905bd3ce..e6abd5bd31b0 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -200,7 +200,7 @@ static unsigned long __peek_user(struct task_struct *child, addr_t addr)
 		tmp = *(addr_t *)((addr_t) &task_pt_regs(child)->psw + addr);
 		if (addr == (addr_t) &dummy->regs.psw.mask)
 			/* Return a clean psw mask. */
-			tmp = psw_user_bits | (tmp & PSW_MASK_USER);
+			tmp = PSW_USER_BITS | (tmp & PSW_MASK_USER);
 
 	} else if (addr < (addr_t) &dummy->regs.orig_gpr2) {
 		/*
@@ -322,7 +322,7 @@ static int __poke_user(struct task_struct *child, addr_t addr, addr_t data)
 		 * psw and gprs are stored on the stack
 		 */
 		if (addr == (addr_t) &dummy->regs.psw.mask &&
-		    ((data & ~PSW_MASK_USER) != psw_user_bits ||
+		    ((data & ~PSW_MASK_USER) != PSW_USER_BITS ||
 		     ((data & PSW_MASK_EA) && !(data & PSW_MASK_BA))))
 			/* Invalid psw mask. */
 			return -EINVAL;
diff --git a/arch/s390/kernel/runtime_instr.c b/arch/s390/kernel/runtime_instr.c
index e1c9d1c292fa..d817cce7e72d 100644
--- a/arch/s390/kernel/runtime_instr.c
+++ b/arch/s390/kernel/runtime_instr.c
@@ -40,8 +40,6 @@ static void disable_runtime_instr(void)
 static void init_runtime_instr_cb(struct runtime_instr_cb *cb)
 {
 	cb->buf_limit = 0xfff;
-	if (s390_user_mode == HOME_SPACE_MODE)
-		cb->home_space = 1;
 	cb->int_requested = 1;
 	cb->pstate = 1;
 	cb->pstate_set_buf = 1;
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index aeed8a61fa0d..ffe1c53264a7 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -64,12 +64,6 @@
 #include <asm/sclp.h>
 #include "entry.h"
 
-long psw_kernel_bits	= PSW_DEFAULT_KEY | PSW_MASK_BASE | PSW_ASC_PRIMARY |
-			  PSW_MASK_EA | PSW_MASK_BA;
-long psw_user_bits	= PSW_MASK_DAT | PSW_MASK_IO | PSW_MASK_EXT |
-			  PSW_DEFAULT_KEY | PSW_MASK_BASE | PSW_MASK_MCHECK |
-			  PSW_MASK_PSTATE | PSW_ASC_HOME;
-
 /*
  * User copy operations.
  */
@@ -300,43 +294,14 @@ static int __init parse_vmalloc(char *arg)
 }
 early_param("vmalloc", parse_vmalloc);
 
-unsigned int s390_user_mode = PRIMARY_SPACE_MODE;
-EXPORT_SYMBOL_GPL(s390_user_mode);
-
-static void __init set_user_mode_primary(void)
-{
-	psw_kernel_bits = (psw_kernel_bits & ~PSW_MASK_ASC) | PSW_ASC_HOME;
-	psw_user_bits = (psw_user_bits & ~PSW_MASK_ASC) | PSW_ASC_PRIMARY;
-#ifdef CONFIG_COMPAT
-	psw32_user_bits =
-		(psw32_user_bits & ~PSW32_MASK_ASC) | PSW32_ASC_PRIMARY;
-#endif
-	uaccess = MACHINE_HAS_MVCOS ? uaccess_mvcos_switch : uaccess_pt;
-}
-
 static int __init early_parse_user_mode(char *p)
 {
-	if (p && strcmp(p, "primary") == 0)
-		s390_user_mode = PRIMARY_SPACE_MODE;
-	else if (!p || strcmp(p, "home") == 0)
-		s390_user_mode = HOME_SPACE_MODE;
-	else
-		return 1;
-	return 0;
+	if (!p || strcmp(p, "primary") == 0)
+		return 0;
+	return 1;
 }
 early_param("user_mode", early_parse_user_mode);
 
-static void __init setup_addressing_mode(void)
-{
-	if (s390_user_mode != PRIMARY_SPACE_MODE)
-		return;
-	set_user_mode_primary();
-	if (MACHINE_HAS_MVCOS)
-		pr_info("Address spaces switched, mvcos available\n");
-	else
-		pr_info("Address spaces switched, mvcos not available\n");
-}
-
 void *restart_stack __attribute__((__section__(".data")));
 
 static void __init setup_lowcore(void)
@@ -348,24 +313,24 @@ static void __init setup_lowcore(void)
 	 */
 	BUILD_BUG_ON(sizeof(struct _lowcore) != LC_PAGES * 4096);
 	lc = __alloc_bootmem_low(LC_PAGES * PAGE_SIZE, LC_PAGES * PAGE_SIZE, 0);
-	lc->restart_psw.mask = psw_kernel_bits;
+	lc->restart_psw.mask = PSW_KERNEL_BITS;
 	lc->restart_psw.addr =
 		PSW_ADDR_AMODE | (unsigned long) restart_int_handler;
-	lc->external_new_psw.mask = psw_kernel_bits |
+	lc->external_new_psw.mask = PSW_KERNEL_BITS |
 		PSW_MASK_DAT | PSW_MASK_MCHECK;
 	lc->external_new_psw.addr =
 		PSW_ADDR_AMODE | (unsigned long) ext_int_handler;
-	lc->svc_new_psw.mask = psw_kernel_bits |
+	lc->svc_new_psw.mask = PSW_KERNEL_BITS |
 		PSW_MASK_DAT | PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK;
 	lc->svc_new_psw.addr = PSW_ADDR_AMODE | (unsigned long) system_call;
-	lc->program_new_psw.mask = psw_kernel_bits |
+	lc->program_new_psw.mask = PSW_KERNEL_BITS |
 		PSW_MASK_DAT | PSW_MASK_MCHECK;
 	lc->program_new_psw.addr =
 		PSW_ADDR_AMODE | (unsigned long) pgm_check_handler;
-	lc->mcck_new_psw.mask = psw_kernel_bits;
+	lc->mcck_new_psw.mask = PSW_KERNEL_BITS;
 	lc->mcck_new_psw.addr =
 		PSW_ADDR_AMODE | (unsigned long) mcck_int_handler;
-	lc->io_new_psw.mask = psw_kernel_bits |
+	lc->io_new_psw.mask = PSW_KERNEL_BITS |
 		PSW_MASK_DAT | PSW_MASK_MCHECK;
 	lc->io_new_psw.addr = PSW_ADDR_AMODE | (unsigned long) io_int_handler;
 	lc->clock_comparator = -1ULL;
@@ -1043,10 +1008,7 @@ void __init setup_arch(char **cmdline_p)
 	init_mm.end_data = (unsigned long) &_edata;
 	init_mm.brk = (unsigned long) &_end;
 
-	if (MACHINE_HAS_MVCOS)
-		memcpy(&uaccess, &uaccess_mvcos, sizeof(uaccess));
-	else
-		memcpy(&uaccess, &uaccess_std, sizeof(uaccess));
+	uaccess = MACHINE_HAS_MVCOS ? uaccess_mvcos : uaccess_pt;
 
 	parse_early_param();
 	detect_memory_layout(memory_chunk, memory_end);
@@ -1054,7 +1016,6 @@ void __init setup_arch(char **cmdline_p)
 	setup_ipl();
 	reserve_oldmem();
 	setup_memory_end();
-	setup_addressing_mode();
 	reserve_crashkernel();
 	setup_memory();
 	setup_resources();
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index c45becf82e01..b4fa7c0223e5 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -57,7 +57,7 @@ static int save_sigregs(struct pt_regs *regs, _sigregs __user *sregs)
 
 	/* Copy a 'clean' PSW mask to the user to avoid leaking
 	   information about whether PER is currently on.  */
-	user_sregs.regs.psw.mask = psw_user_bits |
+	user_sregs.regs.psw.mask = PSW_USER_BITS |
 		(regs->psw.mask & PSW_MASK_USER);
 	user_sregs.regs.psw.addr = regs->psw.addr;
 	memcpy(&user_sregs.regs.gprs, &regs->gprs, sizeof(sregs->regs.gprs));
@@ -85,12 +85,12 @@ static int restore_sigregs(struct pt_regs *regs, _sigregs __user *sregs)
 	err = __copy_from_user(&user_sregs, sregs, sizeof(_sigregs));
 	if (err)
 		return err;
-	/* Use regs->psw.mask instead of psw_user_bits to preserve PER bit. */
+	/* Use regs->psw.mask instead of PSW_USER_BITS to preserve PER bit. */
 	regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
 		(user_sregs.regs.psw.mask & PSW_MASK_USER);
 	/* Check for invalid user address space control. */
-	if ((regs->psw.mask & PSW_MASK_ASC) >= (psw_kernel_bits & PSW_MASK_ASC))
-		regs->psw.mask = (psw_user_bits & PSW_MASK_ASC) |
+	if ((regs->psw.mask & PSW_MASK_ASC) == PSW_ASC_HOME)
+		regs->psw.mask = PSW_ASC_PRIMARY |
 			(regs->psw.mask & ~PSW_MASK_ASC);
 	/* Check for invalid amode */
 	if (regs->psw.mask & PSW_MASK_EA)
@@ -224,7 +224,7 @@ static int setup_frame(int sig, struct k_sigaction *ka,
 	regs->gprs[15] = (unsigned long) frame;
 	/* Force default amode and default user address space control. */
 	regs->psw.mask = PSW_MASK_EA | PSW_MASK_BA |
-		(psw_user_bits & PSW_MASK_ASC) |
+		(PSW_USER_BITS & PSW_MASK_ASC) |
 		(regs->psw.mask & ~PSW_MASK_ASC);
 	regs->psw.addr = (unsigned long) ka->sa.sa_handler | PSW_ADDR_AMODE;
 
@@ -295,7 +295,7 @@ static int setup_rt_frame(int sig, struct k_sigaction *ka, siginfo_t *info,
 	regs->gprs[15] = (unsigned long) frame;
 	/* Force default amode and default user address space control. */
 	regs->psw.mask = PSW_MASK_EA | PSW_MASK_BA |
-		(psw_user_bits & PSW_MASK_ASC) |
+		(PSW_USER_BITS & PSW_MASK_ASC) |
 		(regs->psw.mask & ~PSW_MASK_ASC);
 	regs->psw.addr = (unsigned long) ka->sa.sa_handler | PSW_ADDR_AMODE;
 
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 1a4313a1b60f..cca6cf6abacc 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -283,7 +283,7 @@ static void pcpu_delegate(struct pcpu *pcpu, void (*func)(void *),
 	struct _lowcore *lc = lowcore_ptr[pcpu - pcpu_devices];
 	unsigned long source_cpu = stap();
 
-	__load_psw_mask(psw_kernel_bits);
+	__load_psw_mask(PSW_KERNEL_BITS);
 	if (pcpu->address == source_cpu)
 		func(data);	/* should not return */
 	/* Stop target cpu (if func returns this stops the current cpu). */
@@ -395,7 +395,7 @@ void smp_send_stop(void)
 	int cpu;
 
 	/* Disable all interrupts/machine checks */
-	__load_psw_mask(psw_kernel_bits | PSW_MASK_DAT);
+	__load_psw_mask(PSW_KERNEL_BITS | PSW_MASK_DAT);
 	trace_hardirqs_off();
 
 	debug_set_critical();
@@ -693,7 +693,7 @@ static void smp_start_secondary(void *cpuvoid)
 	S390_lowcore.restart_source = -1UL;
 	restore_access_regs(S390_lowcore.access_regs_save_area);
 	__ctl_load(S390_lowcore.cregs_save_area, 0, 15);
-	__load_psw_mask(psw_kernel_bits | PSW_MASK_DAT);
+	__load_psw_mask(PSW_KERNEL_BITS | PSW_MASK_DAT);
 	cpu_init();
 	preempt_disable();
 	init_cpu_timer();
diff --git a/arch/s390/kernel/vdso.c b/arch/s390/kernel/vdso.c
index 05d75c413137..a84476f2a9bb 100644
--- a/arch/s390/kernel/vdso.c
+++ b/arch/s390/kernel/vdso.c
@@ -84,8 +84,7 @@ struct vdso_data *vdso_data = &vdso_data_store.data;
  */
 static void vdso_init_data(struct vdso_data *vd)
 {
-	vd->ectg_available =
-		s390_user_mode != HOME_SPACE_MODE && test_facility(31);
+	vd->ectg_available = test_facility(31);
 }
 
 #ifdef CONFIG_64BIT
@@ -102,7 +101,7 @@ int vdso_alloc_per_cpu(struct _lowcore *lowcore)
 
 	lowcore->vdso_per_cpu_data = __LC_PASTE;
 
-	if (s390_user_mode == HOME_SPACE_MODE || !vdso_enabled)
+	if (!vdso_enabled)
 		return 0;
 
 	segment_table = __get_free_pages(GFP_KERNEL, SEGMENT_ORDER);
@@ -147,7 +146,7 @@ void vdso_free_per_cpu(struct _lowcore *lowcore)
 	unsigned long segment_table, page_table, page_frame;
 	u32 *psal, *aste;
 
-	if (s390_user_mode == HOME_SPACE_MODE || !vdso_enabled)
+	if (!vdso_enabled)
 		return;
 
 	psal = (u32 *)(addr_t) lowcore->paste[4];
@@ -165,7 +164,7 @@ static void vdso_init_cr5(void)
 {
 	unsigned long cr5;
 
-	if (s390_user_mode == HOME_SPACE_MODE || !vdso_enabled)
+	if (!vdso_enabled)
 		return;
 	cr5 = offsetof(struct _lowcore, paste);
 	__ctl_load(cr5, 5, 5);
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index abcfab55f99b..e312c48a1c40 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -161,7 +161,7 @@ void __kprobes vtime_stop_cpu(void)
 	trace_hardirqs_on();
 
 	/* Wait for external, I/O or machine check interrupt. */
-	psw_mask = psw_kernel_bits | PSW_MASK_WAIT | PSW_MASK_DAT |
+	psw_mask = PSW_KERNEL_BITS | PSW_MASK_WAIT | PSW_MASK_DAT |
 		PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK;
 	idle->nohz_delay = 0;
 
diff --git a/arch/s390/lib/Makefile b/arch/s390/lib/Makefile
index e506c5fb6f6a..b068729e50ac 100644
--- a/arch/s390/lib/Makefile
+++ b/arch/s390/lib/Makefile
@@ -2,7 +2,7 @@
 # Makefile for s390-specific library files..
 #
 
-lib-y += delay.o string.o uaccess_std.o uaccess_pt.o find.o
+lib-y += delay.o string.o uaccess_pt.o find.o
 obj-$(CONFIG_32BIT) += div64.o qrnnd.o ucmpdi2.o mem32.o
 obj-$(CONFIG_64BIT) += mem64.o
 lib-$(CONFIG_64BIT) += uaccess_mvcos.o
diff --git a/arch/s390/lib/uaccess_mvcos.c b/arch/s390/lib/uaccess_mvcos.c
index 1829742bf479..4b7993bf69b9 100644
--- a/arch/s390/lib/uaccess_mvcos.c
+++ b/arch/s390/lib/uaccess_mvcos.c
@@ -65,13 +65,6 @@ static size_t copy_from_user_mvcos(size_t size, const void __user *ptr, void *x)
 	return size;
 }
 
-static size_t copy_from_user_mvcos_check(size_t size, const void __user *ptr, void *x)
-{
-	if (size <= 256)
-		return copy_from_user_std(size, ptr, x);
-	return copy_from_user_mvcos(size, ptr, x);
-}
-
 static size_t copy_to_user_mvcos(size_t size, void __user *ptr, const void *x)
 {
 	register unsigned long reg0 asm("0") = 0x810000UL;
@@ -101,14 +94,6 @@ static size_t copy_to_user_mvcos(size_t size, void __user *ptr, const void *x)
 	return size;
 }
 
-static size_t copy_to_user_mvcos_check(size_t size, void __user *ptr,
-				       const void *x)
-{
-	if (size <= 256)
-		return copy_to_user_std(size, ptr, x);
-	return copy_to_user_mvcos(size, ptr, x);
-}
-
 static size_t copy_in_user_mvcos(size_t size, void __user *to,
 				 const void __user *from)
 {
@@ -201,23 +186,8 @@ static size_t strncpy_from_user_mvcos(size_t count, const char __user *src,
 }
 
 struct uaccess_ops uaccess_mvcos = {
-	.copy_from_user = copy_from_user_mvcos_check,
-	.copy_from_user_small = copy_from_user_std,
-	.copy_to_user = copy_to_user_mvcos_check,
-	.copy_to_user_small = copy_to_user_std,
-	.copy_in_user = copy_in_user_mvcos,
-	.clear_user = clear_user_mvcos,
-	.strnlen_user = strnlen_user_std,
-	.strncpy_from_user = strncpy_from_user_std,
-	.futex_atomic_op = futex_atomic_op_std,
-	.futex_atomic_cmpxchg = futex_atomic_cmpxchg_std,
-};
-
-struct uaccess_ops uaccess_mvcos_switch = {
 	.copy_from_user = copy_from_user_mvcos,
-	.copy_from_user_small = copy_from_user_mvcos,
 	.copy_to_user = copy_to_user_mvcos,
-	.copy_to_user_small = copy_to_user_mvcos,
 	.copy_in_user = copy_in_user_mvcos,
 	.clear_user = clear_user_mvcos,
 	.strnlen_user = strnlen_user_mvcos,
diff --git a/arch/s390/lib/uaccess_pt.c b/arch/s390/lib/uaccess_pt.c
index 1694d738b175..97e03caf7825 100644
--- a/arch/s390/lib/uaccess_pt.c
+++ b/arch/s390/lib/uaccess_pt.c
@@ -461,9 +461,7 @@ int futex_atomic_cmpxchg_pt(u32 *uval, u32 __user *uaddr,
 
 struct uaccess_ops uaccess_pt = {
 	.copy_from_user		= copy_from_user_pt,
-	.copy_from_user_small	= copy_from_user_pt,
 	.copy_to_user		= copy_to_user_pt,
-	.copy_to_user_small	= copy_to_user_pt,
 	.copy_in_user		= copy_in_user_pt,
 	.clear_user		= clear_user_pt,
 	.strnlen_user		= strnlen_user_pt,
diff --git a/arch/s390/lib/uaccess_std.c b/arch/s390/lib/uaccess_std.c
deleted file mode 100644
index 4a75d475b06a..000000000000
--- a/arch/s390/lib/uaccess_std.c
+++ /dev/null
@@ -1,305 +0,0 @@
-/*
- *  Standard user space access functions based on mvcp/mvcs and doing
- *  interesting things in the secondary space mode.
- *
- *    Copyright IBM Corp. 2006
- *    Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com),
- *		 Gerald Schaefer (gerald.schaefer@de.ibm.com)
- */
-
-#include <linux/errno.h>
-#include <linux/mm.h>
-#include <linux/uaccess.h>
-#include <asm/futex.h>
-#include "uaccess.h"
-
-#ifndef CONFIG_64BIT
-#define AHI	"ahi"
-#define ALR	"alr"
-#define CLR	"clr"
-#define LHI	"lhi"
-#define SLR	"slr"
-#else
-#define AHI	"aghi"
-#define ALR	"algr"
-#define CLR	"clgr"
-#define LHI	"lghi"
-#define SLR	"slgr"
-#endif
-
-size_t copy_from_user_std(size_t size, const void __user *ptr, void *x)
-{
-	unsigned long tmp1, tmp2;
-
-	tmp1 = -256UL;
-	asm volatile(
-		"0: mvcp  0(%0,%2),0(%1),%3\n"
-		"10:jz    8f\n"
-		"1:"ALR"  %0,%3\n"
-		"   la    %1,256(%1)\n"
-		"   la    %2,256(%2)\n"
-		"2: mvcp  0(%0,%2),0(%1),%3\n"
-		"11:jnz   1b\n"
-		"   j     8f\n"
-		"3: la    %4,255(%1)\n"	/* %4 = ptr + 255 */
-		"  "LHI"  %3,-4096\n"
-		"   nr    %4,%3\n"	/* %4 = (ptr + 255) & -4096 */
-		"  "SLR"  %4,%1\n"
-		"  "CLR"  %0,%4\n"	/* copy crosses next page boundary? */
-		"   jnh   5f\n"
-		"4: mvcp  0(%4,%2),0(%1),%3\n"
-		"12:"SLR"  %0,%4\n"
-		"  "ALR"  %2,%4\n"
-		"5:"LHI"  %4,-1\n"
-		"  "ALR"  %4,%0\n"	/* copy remaining size, subtract 1 */
-		"   bras  %3,7f\n"	/* memset loop */
-		"   xc    0(1,%2),0(%2)\n"
-		"6: xc    0(256,%2),0(%2)\n"
-		"   la    %2,256(%2)\n"
-		"7:"AHI"  %4,-256\n"
-		"   jnm   6b\n"
-		"   ex    %4,0(%3)\n"
-		"   j     9f\n"
-		"8:"SLR"  %0,%0\n"
-		"9: \n"
-		EX_TABLE(0b,3b) EX_TABLE(2b,3b) EX_TABLE(4b,5b)
-		EX_TABLE(10b,3b) EX_TABLE(11b,3b) EX_TABLE(12b,5b)
-		: "+a" (size), "+a" (ptr), "+a" (x), "+a" (tmp1), "=a" (tmp2)
-		: : "cc", "memory");
-	return size;
-}
-
-static size_t copy_from_user_std_check(size_t size, const void __user *ptr,
-				       void *x)
-{
-	if (size <= 1024)
-		return copy_from_user_std(size, ptr, x);
-	return copy_from_user_pt(size, ptr, x);
-}
-
-size_t copy_to_user_std(size_t size, void __user *ptr, const void *x)
-{
-	unsigned long tmp1, tmp2;
-
-	tmp1 = -256UL;
-	asm volatile(
-		"0: mvcs  0(%0,%1),0(%2),%3\n"
-		"7: jz    5f\n"
-		"1:"ALR"  %0,%3\n"
-		"   la    %1,256(%1)\n"
-		"   la    %2,256(%2)\n"
-		"2: mvcs  0(%0,%1),0(%2),%3\n"
-		"8: jnz   1b\n"
-		"   j     5f\n"
-		"3: la    %4,255(%1)\n" /* %4 = ptr + 255 */
-		"  "LHI"  %3,-4096\n"
-		"   nr    %4,%3\n"	/* %4 = (ptr + 255) & -4096 */
-		"  "SLR"  %4,%1\n"
-		"  "CLR"  %0,%4\n"	/* copy crosses next page boundary? */
-		"   jnh   6f\n"
-		"4: mvcs  0(%4,%1),0(%2),%3\n"
-		"9:"SLR"  %0,%4\n"
-		"   j     6f\n"
-		"5:"SLR"  %0,%0\n"
-		"6: \n"
-		EX_TABLE(0b,3b) EX_TABLE(2b,3b) EX_TABLE(4b,6b)
-		EX_TABLE(7b,3b) EX_TABLE(8b,3b) EX_TABLE(9b,6b)
-		: "+a" (size), "+a" (ptr), "+a" (x), "+a" (tmp1), "=a" (tmp2)
-		: : "cc", "memory");
-	return size;
-}
-
-static size_t copy_to_user_std_check(size_t size, void __user *ptr,
-				     const void *x)
-{
-	if (size <= 1024)
-		return copy_to_user_std(size, ptr, x);
-	return copy_to_user_pt(size, ptr, x);
-}
-
-static size_t copy_in_user_std(size_t size, void __user *to,
-			       const void __user *from)
-{
-	unsigned long tmp1;
-
-	asm volatile(
-		"   sacf  256\n"
-		"  "AHI"  %0,-1\n"
-		"   jo    5f\n"
-		"   bras  %3,3f\n"
-		"0:"AHI"  %0,257\n"
-		"1: mvc   0(1,%1),0(%2)\n"
-		"   la    %1,1(%1)\n"
-		"   la    %2,1(%2)\n"
-		"  "AHI"  %0,-1\n"
-		"   jnz   1b\n"
-		"   j     5f\n"
-		"2: mvc   0(256,%1),0(%2)\n"
-		"   la    %1,256(%1)\n"
-		"   la    %2,256(%2)\n"
-		"3:"AHI"  %0,-256\n"
-		"   jnm   2b\n"
-		"4: ex    %0,1b-0b(%3)\n"
-		"5: "SLR"  %0,%0\n"
-		"6: sacf  0\n"
-		EX_TABLE(1b,6b) EX_TABLE(2b,0b) EX_TABLE(4b,0b)
-		: "+a" (size), "+a" (to), "+a" (from), "=a" (tmp1)
-		: : "cc", "memory");
-	return size;
-}
-
-static size_t clear_user_std(size_t size, void __user *to)
-{
-	unsigned long tmp1, tmp2;
-
-	asm volatile(
-		"   sacf  256\n"
-		"  "AHI"  %0,-1\n"
-		"   jo    5f\n"
-		"   bras  %3,3f\n"
-		"   xc    0(1,%1),0(%1)\n"
-		"0:"AHI"  %0,257\n"
-		"   la    %2,255(%1)\n" /* %2 = ptr + 255 */
-		"   srl   %2,12\n"
-		"   sll   %2,12\n"	/* %2 = (ptr + 255) & -4096 */
-		"  "SLR"  %2,%1\n"
-		"  "CLR"  %0,%2\n"	/* clear crosses next page boundary? */
-		"   jnh   5f\n"
-		"  "AHI"  %2,-1\n"
-		"1: ex    %2,0(%3)\n"
-		"  "AHI"  %2,1\n"
-		"  "SLR"  %0,%2\n"
-		"   j     5f\n"
-		"2: xc    0(256,%1),0(%1)\n"
-		"   la    %1,256(%1)\n"
-		"3:"AHI"  %0,-256\n"
-		"   jnm   2b\n"
-		"4: ex    %0,0(%3)\n"
-		"5: "SLR"  %0,%0\n"
-		"6: sacf  0\n"
-		EX_TABLE(1b,6b) EX_TABLE(2b,0b) EX_TABLE(4b,0b)
-		: "+a" (size), "+a" (to), "=a" (tmp1), "=a" (tmp2)
-		: : "cc", "memory");
-	return size;
-}
-
-size_t strnlen_user_std(size_t size, const char __user *src)
-{
-	register unsigned long reg0 asm("0") = 0UL;
-	unsigned long tmp1, tmp2;
-
-	if (unlikely(!size))
-		return 0;
-	asm volatile(
-		"   la    %2,0(%1)\n"
-		"   la    %3,0(%0,%1)\n"
-		"  "SLR"  %0,%0\n"
-		"   sacf  256\n"
-		"0: srst  %3,%2\n"
-		"   jo    0b\n"
-		"   la    %0,1(%3)\n"	/* strnlen_user results includes \0 */
-		"  "SLR"  %0,%1\n"
-		"1: sacf  0\n"
-		EX_TABLE(0b,1b)
-		: "+a" (size), "+a" (src), "=a" (tmp1), "=a" (tmp2)
-		: "d" (reg0) : "cc", "memory");
-	return size;
-}
-
-size_t strncpy_from_user_std(size_t count, const char __user *src, char *dst)
-{
-	size_t done, len, offset, len_str;
-
-	if (unlikely(!count))
-		return 0;
-	done = 0;
-	do {
-		offset = (size_t)src & ~PAGE_MASK;
-		len = min(count - done, PAGE_SIZE - offset);
-		if (copy_from_user_std(len, src, dst))
-			return -EFAULT;
-		len_str = strnlen(dst, len);
-		done += len_str;
-		src += len_str;
-		dst += len_str;
-	} while ((len_str == len) && (done < count));
-	return done;
-}
-
-#define __futex_atomic_op(insn, ret, oldval, newval, uaddr, oparg)	\
-	asm volatile(							\
-		"   sacf  256\n"					\
-		"0: l     %1,0(%6)\n"					\
-		"1:"insn						\
-		"2: cs    %1,%2,0(%6)\n"				\
-		"3: jl    1b\n"						\
-		"   lhi   %0,0\n"					\
-		"4: sacf  0\n"						\
-		EX_TABLE(0b,4b) EX_TABLE(2b,4b) EX_TABLE(3b,4b)		\
-		: "=d" (ret), "=&d" (oldval), "=&d" (newval),		\
-		  "=m" (*uaddr)						\
-		: "0" (-EFAULT), "d" (oparg), "a" (uaddr),		\
-		  "m" (*uaddr) : "cc");
-
-int futex_atomic_op_std(int op, u32 __user *uaddr, int oparg, int *old)
-{
-	int oldval = 0, newval, ret;
-
-	switch (op) {
-	case FUTEX_OP_SET:
-		__futex_atomic_op("lr %2,%5\n",
-				  ret, oldval, newval, uaddr, oparg);
-		break;
-	case FUTEX_OP_ADD:
-		__futex_atomic_op("lr %2,%1\nar %2,%5\n",
-				  ret, oldval, newval, uaddr, oparg);
-		break;
-	case FUTEX_OP_OR:
-		__futex_atomic_op("lr %2,%1\nor %2,%5\n",
-				  ret, oldval, newval, uaddr, oparg);
-		break;
-	case FUTEX_OP_ANDN:
-		__futex_atomic_op("lr %2,%1\nnr %2,%5\n",
-				  ret, oldval, newval, uaddr, oparg);
-		break;
-	case FUTEX_OP_XOR:
-		__futex_atomic_op("lr %2,%1\nxr %2,%5\n",
-				  ret, oldval, newval, uaddr, oparg);
-		break;
-	default:
-		ret = -ENOSYS;
-	}
-	*old = oldval;
-	return ret;
-}
-
-int futex_atomic_cmpxchg_std(u32 *uval, u32 __user *uaddr,
-			     u32 oldval, u32 newval)
-{
-	int ret;
-
-	asm volatile(
-		"   sacf 256\n"
-		"0: cs   %1,%4,0(%5)\n"
-		"1: la   %0,0\n"
-		"2: sacf 0\n"
-		EX_TABLE(0b,2b) EX_TABLE(1b,2b)
-		: "=d" (ret), "+d" (oldval), "=m" (*uaddr)
-		: "0" (-EFAULT), "d" (newval), "a" (uaddr), "m" (*uaddr)
-		: "cc", "memory" );
-	*uval = oldval;
-	return ret;
-}
-
-struct uaccess_ops uaccess_std = {
-	.copy_from_user = copy_from_user_std_check,
-	.copy_from_user_small = copy_from_user_std,
-	.copy_to_user = copy_to_user_std_check,
-	.copy_to_user_small = copy_to_user_std,
-	.copy_in_user = copy_in_user_std,
-	.clear_user = clear_user_std,
-	.strnlen_user = strnlen_user_std,
-	.strncpy_from_user = strncpy_from_user_std,
-	.futex_atomic_op = futex_atomic_op_std,
-	.futex_atomic_cmpxchg = futex_atomic_cmpxchg_std,
-};
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index fc6679210d83..8f29762671cf 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -115,13 +115,8 @@ static inline int user_space_fault(unsigned long trans_exc_code)
 	if (trans_exc_code == 2)
 		/* Access via secondary space, set_fs setting decides */
 		return current->thread.mm_segment.ar4;
-	if (s390_user_mode == HOME_SPACE_MODE)
-		/* User space if the access has been done via home space. */
-		return trans_exc_code == 3;
 	/*
-	 * If the user space is not the home space the kernel runs in home
-	 * space. Access via secondary space has already been covered,
-	 * access via primary space or access register is from user space
+	 * Access via primary space or access register is from user space
 	 * and access via home space is from the kernel.
 	 */
 	return trans_exc_code != 3;
@@ -471,7 +466,7 @@ int __handle_fault(unsigned long uaddr, unsigned long pgm_int_code, int write)
 	int access, fault;
 
 	/* Emulate a uaccess fault from kernel mode. */
-	regs.psw.mask = psw_kernel_bits | PSW_MASK_DAT | PSW_MASK_MCHECK;
+	regs.psw.mask = PSW_KERNEL_BITS | PSW_MASK_DAT | PSW_MASK_MCHECK;
 	if (!irqs_disabled())
 		regs.psw.mask |= PSW_MASK_IO | PSW_MASK_EXT;
 	regs.psw.addr = (unsigned long) __builtin_return_address(0);
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index de8cbc30dcd1..94f37a9fb1e5 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -1157,10 +1157,6 @@ int s390_enable_sie(void)
 	struct mm_struct *mm = tsk->mm;
 	struct mmu_gather tlb;
 
-	/* Do we have switched amode? If no, we cannot do sie */
-	if (s390_user_mode == HOME_SPACE_MODE)
-		return -EINVAL;
-
 	/* Do we have pgstes? if yes, we are done */
 	if (mm_has_pgste(tsk->mm))
 		return 0;
-- 
cgit 


From 69db3b5e850d0cac543d8523cbde17a4729f8990 Mon Sep 17 00:00:00 2001
From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Wed, 25 Sep 2013 12:27:43 +0200
Subject: s390/pci: implement hibernation hooks

Implement architecture-specific functionality when a PCI device is
doing a hibernate transition.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/pci/pci.c | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index f17a8343e360..206186c44ade 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -708,6 +708,47 @@ void pcibios_disable_device(struct pci_dev *pdev)
 	zdev->pdev = NULL;
 }
 
+#ifdef CONFIG_HIBERNATE_CALLBACKS
+static int zpci_restore(struct device *dev)
+{
+	struct zpci_dev *zdev = get_zdev(to_pci_dev(dev));
+	int ret = 0;
+
+	if (zdev->state != ZPCI_FN_STATE_ONLINE)
+		goto out;
+
+	ret = clp_enable_fh(zdev, ZPCI_NR_DMA_SPACES);
+	if (ret)
+		goto out;
+
+	zpci_map_resources(zdev);
+	zpci_register_ioat(zdev, 0, zdev->start_dma + PAGE_OFFSET,
+			   zdev->start_dma + zdev->iommu_size - 1,
+			   (u64) zdev->dma_table);
+
+out:
+	return ret;
+}
+
+static int zpci_freeze(struct device *dev)
+{
+	struct zpci_dev *zdev = get_zdev(to_pci_dev(dev));
+
+	if (zdev->state != ZPCI_FN_STATE_ONLINE)
+		return 0;
+
+	zpci_unregister_ioat(zdev, 0);
+	return clp_disable_fh(zdev);
+}
+
+struct dev_pm_ops pcibios_pm_ops = {
+	.thaw_noirq = zpci_restore,
+	.freeze_noirq = zpci_freeze,
+	.restore_noirq = zpci_restore,
+	.poweroff_noirq = zpci_freeze,
+};
+#endif /* CONFIG_HIBERNATE_CALLBACKS */
+
 static int zpci_scan_bus(struct zpci_dev *zdev)
 {
 	struct resource *res;
-- 
cgit 


From 6aa2677a57fdd8964ccd44766cdc06cdd9c5db5b Mon Sep 17 00:00:00 2001
From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Wed, 25 Sep 2013 12:29:05 +0200
Subject: s390/eadm_sch: improve quiesce handling

When quiescing an eadm subchannel make sure that outstanding IO is
cleared and potential timeout handlers are canceled.

Reviewed-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/s390/cio/eadm_sch.c | 27 +++++++++++++++++++++++++--
 drivers/s390/cio/eadm_sch.h |  4 +++-
 2 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/drivers/s390/cio/eadm_sch.c b/drivers/s390/cio/eadm_sch.c
index 6b54d8a05cd4..aca7bfc113aa 100644
--- a/drivers/s390/cio/eadm_sch.c
+++ b/drivers/s390/cio/eadm_sch.c
@@ -6,6 +6,7 @@
  */
 
 #include <linux/kernel_stat.h>
+#include <linux/completion.h>
 #include <linux/workqueue.h>
 #include <linux/spinlock.h>
 #include <linux/device.h>
@@ -159,6 +160,9 @@ static void eadm_subchannel_irq(struct subchannel *sch)
 	}
 	scm_irq_handler((struct aob *)(unsigned long)scsw->aob, error);
 	private->state = EADM_IDLE;
+
+	if (private->completion)
+		complete(private->completion);
 }
 
 static struct subchannel *eadm_get_idle_sch(void)
@@ -255,13 +259,32 @@ out:
 
 static void eadm_quiesce(struct subchannel *sch)
 {
+	struct eadm_private *private = get_eadm_private(sch);
+	DECLARE_COMPLETION_ONSTACK(completion);
 	int ret;
 
+	spin_lock_irq(sch->lock);
+	if (private->state != EADM_BUSY)
+		goto disable;
+
+	if (eadm_subchannel_clear(sch))
+		goto disable;
+
+	private->completion = &completion;
+	spin_unlock_irq(sch->lock);
+
+	wait_for_completion_io(&completion);
+
+	spin_lock_irq(sch->lock);
+	private->completion = NULL;
+
+disable:
+	eadm_subchannel_set_timeout(sch, 0);
 	do {
-		spin_lock_irq(sch->lock);
 		ret = cio_disable_subchannel(sch);
-		spin_unlock_irq(sch->lock);
 	} while (ret == -EBUSY);
+
+	spin_unlock_irq(sch->lock);
 }
 
 static int eadm_subchannel_remove(struct subchannel *sch)
diff --git a/drivers/s390/cio/eadm_sch.h b/drivers/s390/cio/eadm_sch.h
index 2779be093982..9664e4653f98 100644
--- a/drivers/s390/cio/eadm_sch.h
+++ b/drivers/s390/cio/eadm_sch.h
@@ -1,6 +1,7 @@
 #ifndef EADM_SCH_H
 #define EADM_SCH_H
 
+#include <linux/completion.h>
 #include <linux/device.h>
 #include <linux/timer.h>
 #include <linux/list.h>
@@ -9,9 +10,10 @@
 struct eadm_private {
 	union orb orb;
 	enum {EADM_IDLE, EADM_BUSY, EADM_NOT_OPER} state;
+	struct completion *completion;
+	struct subchannel *sch;
 	struct timer_list timer;
 	struct list_head head;
-	struct subchannel *sch;
 } __aligned(8);
 
 #define get_eadm_private(n) ((struct eadm_private *)dev_get_drvdata(&n->dev))
-- 
cgit 


From 12325f097898c120c6cd89797aae97836783b5ef Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 30 Sep 2013 14:47:46 +0200
Subject: s390: cleanup and add sanity checks to control register macros

- turn some macros into functions
- merge two almost identical versions for 32/64 bit
- add BUILD_BUG_ON() check to make sure the passed in array is large enough

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/ctl_reg.h | 112 ++++++++++++++++++----------------------
 1 file changed, 51 insertions(+), 61 deletions(-)

diff --git a/arch/s390/include/asm/ctl_reg.h b/arch/s390/include/asm/ctl_reg.h
index debfda33d1f8..9b69c0befdca 100644
--- a/arch/s390/include/asm/ctl_reg.h
+++ b/arch/s390/include/asm/ctl_reg.h
@@ -8,69 +8,59 @@
 #define __ASM_CTL_REG_H
 
 #ifdef CONFIG_64BIT
-
-#define __ctl_load(array, low, high) ({				\
-	typedef struct { char _[sizeof(array)]; } addrtype;	\
-	asm volatile(						\
-		"	lctlg	%1,%2,%0\n"			\
-		: : "Q" (*(addrtype *)(&array)),		\
-		    "i" (low), "i" (high));			\
-	})
-
-#define __ctl_store(array, low, high) ({			\
-	typedef struct { char _[sizeof(array)]; } addrtype;	\
-	asm volatile(						\
-		"	stctg	%1,%2,%0\n"			\
-		: "=Q" (*(addrtype *)(&array))			\
-		: "i" (low), "i" (high));			\
-	})
-
-#else /* CONFIG_64BIT */
-
-#define __ctl_load(array, low, high) ({				\
-	typedef struct { char _[sizeof(array)]; } addrtype;	\
-	asm volatile(						\
-		"	lctl	%1,%2,%0\n"			\
-		: : "Q" (*(addrtype *)(&array)),		\
-		    "i" (low), "i" (high));			\
-})
-
-#define __ctl_store(array, low, high) ({			\
-	typedef struct { char _[sizeof(array)]; } addrtype;	\
-	asm volatile(						\
-		"	stctl	%1,%2,%0\n"			\
-		: "=Q" (*(addrtype *)(&array))			\
-		: "i" (low), "i" (high));			\
-	})
-
-#endif /* CONFIG_64BIT */
-
-#define __ctl_set_bit(cr, bit) ({	\
-	unsigned long __dummy;		\
-	__ctl_store(__dummy, cr, cr);	\
-	__dummy |= 1UL << (bit);	\
-	__ctl_load(__dummy, cr, cr);	\
-})
-
-#define __ctl_clear_bit(cr, bit) ({	\
-	unsigned long __dummy;		\
-	__ctl_store(__dummy, cr, cr);	\
-	__dummy &= ~(1UL << (bit));	\
-	__ctl_load(__dummy, cr, cr);	\
-})
+# define __CTL_LOAD	"lctlg"
+# define __CTL_STORE	"stctg"
+#else
+# define __CTL_LOAD	"lctl"
+# define __CTL_STORE	"stctl"
+#endif
+
+#define __ctl_load(array, low, high) {					\
+	typedef struct { char _[sizeof(array)]; } addrtype;		\
+									\
+	BUILD_BUG_ON(sizeof(addrtype) != (high - low + 1) * sizeof(long));\
+	asm volatile(							\
+		__CTL_LOAD " %1,%2,%0\n"				\
+		: : "Q" (*(addrtype *)(&array)), "i" (low), "i" (high));\
+}
+
+#define __ctl_store(array, low, high) {					\
+	typedef struct { char _[sizeof(array)]; } addrtype;		\
+									\
+	BUILD_BUG_ON(sizeof(addrtype) != (high - low + 1) * sizeof(long));\
+	asm volatile(							\
+		__CTL_STORE " %1,%2,%0\n"				\
+		: "=Q" (*(addrtype *)(&array))				\
+		: "i" (low), "i" (high));				\
+}
+
+static inline void __ctl_set_bit(unsigned int cr, unsigned int bit)
+{
+	unsigned long reg;
+
+	__ctl_store(reg, cr, cr);
+	reg |= 1UL << bit;
+	__ctl_load(reg, cr, cr);
+}
+
+static inline void __ctl_clear_bit(unsigned int cr, unsigned int bit)
+{
+	unsigned long reg;
+
+	__ctl_store(reg, cr, cr);
+	reg &= ~(1UL << bit);
+	__ctl_load(reg, cr, cr);
+}
+
+void smp_ctl_set_bit(int cr, int bit);
+void smp_ctl_clear_bit(int cr, int bit);
 
 #ifdef CONFIG_SMP
-
-extern void smp_ctl_set_bit(int cr, int bit);
-extern void smp_ctl_clear_bit(int cr, int bit);
-#define ctl_set_bit(cr, bit) smp_ctl_set_bit(cr, bit)
-#define ctl_clear_bit(cr, bit) smp_ctl_clear_bit(cr, bit)
-
+# define ctl_set_bit(cr, bit) smp_ctl_set_bit(cr, bit)
+# define ctl_clear_bit(cr, bit) smp_ctl_clear_bit(cr, bit)
 #else
-
-#define ctl_set_bit(cr, bit) __ctl_set_bit(cr, bit)
-#define ctl_clear_bit(cr, bit) __ctl_clear_bit(cr, bit)
-
-#endif /* CONFIG_SMP */
+# define ctl_set_bit(cr, bit) __ctl_set_bit(cr, bit)
+# define ctl_clear_bit(cr, bit) __ctl_clear_bit(cr, bit)
+#endif
 
 #endif /* __ASM_CTL_REG_H */
-- 
cgit 


From 6cef30034c32ebe448c844089c4168c411feeb63 Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Fri, 4 Oct 2013 11:12:16 +0200
Subject: s390/bpf,jit: fix prolog oddity

The prolog of functions generated by the bpf jit compiler uses an
instruction sequence with an "ahi" instruction to create stack space
instead of using an "aghi" instruction. Using the 32-bit "ahi" is not
wrong as the stack we are operating on is an order-4 allocation which
is always aligned to 16KB. But it is more consistent to use an "aghi"
as the stack pointer is a 64-bit value.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/net/bpf_jit_comp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/s390/net/bpf_jit_comp.c b/arch/s390/net/bpf_jit_comp.c
index 49425ca801d5..16871da37371 100644
--- a/arch/s390/net/bpf_jit_comp.c
+++ b/arch/s390/net/bpf_jit_comp.c
@@ -156,8 +156,8 @@ static void bpf_jit_prologue(struct bpf_jit *jit)
 		EMIT6(0xeb8ff058, 0x0024);
 		/* lgr %r14,%r15 */
 		EMIT4(0xb90400ef);
-		/* ahi %r15,<offset> */
-		EMIT4_IMM(0xa7fa0000, (jit->seen & SEEN_MEM) ? -112 : -80);
+		/* aghi %r15,<offset> */
+		EMIT4_IMM(0xa7fb0000, (jit->seen & SEEN_MEM) ? -112 : -80);
 		/* stg %r14,152(%r15) */
 		EMIT6(0xe3e0f098, 0x0024);
 	} else if ((jit->seen & SEEN_XREG) && (jit->seen & SEEN_LITERAL))
-- 
cgit 


From 127c1feffff8078400f01372712c600d0f9eef51 Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Mon, 7 Oct 2013 12:12:32 +0200
Subject: s390/mm: do not initialize storage keys

With dirty and referenced bits implemented in software it is unnecessary
to initialize the storage key for every page. With this patch not a single
storage key operation is done for a system that does not use KVM.
For KVM set_pte_at/pgste_set_key will do the initialization for the guest
view of the storage key when the mapping for the page is established in
the host.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/page.h | 7 ++++++-
 arch/s390/kernel/early.c     | 2 ++
 arch/s390/mm/pageattr.c      | 4 +++-
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h
index 1e51f2915b2e..316c8503a3b4 100644
--- a/arch/s390/include/asm/page.h
+++ b/arch/s390/include/asm/page.h
@@ -30,7 +30,12 @@
 #include <asm/setup.h>
 #ifndef __ASSEMBLY__
 
-void storage_key_init_range(unsigned long start, unsigned long end);
+static inline void storage_key_init_range(unsigned long start, unsigned long end)
+{
+#if PAGE_DEFAULT_KEY
+	__storage_key_init_range(start, end);
+#endif
+}
 
 static inline void clear_page(void *page)
 {
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index dc8770d7173c..96543ac400a7 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -206,6 +206,7 @@ static noinline __init void clear_bss_section(void)
  */
 static noinline __init void init_kernel_storage_key(void)
 {
+#if PAGE_DEFAULT_KEY
 	unsigned long end_pfn, init_pfn;
 
 	end_pfn = PFN_UP(__pa(&_end));
@@ -213,6 +214,7 @@ static noinline __init void init_kernel_storage_key(void)
 	for (init_pfn = 0 ; init_pfn < end_pfn; init_pfn++)
 		page_set_storage_key(init_pfn << PAGE_SHIFT,
 				     PAGE_DEFAULT_KEY, 0);
+#endif
 }
 
 static __initdata char sysinfo_page[PAGE_SIZE] __aligned(PAGE_SIZE);
diff --git a/arch/s390/mm/pageattr.c b/arch/s390/mm/pageattr.c
index 990397420e6b..8400f494623f 100644
--- a/arch/s390/mm/pageattr.c
+++ b/arch/s390/mm/pageattr.c
@@ -9,6 +9,7 @@
 #include <asm/pgtable.h>
 #include <asm/page.h>
 
+#if PAGE_DEFAULT_KEY
 static inline unsigned long sske_frame(unsigned long addr, unsigned char skey)
 {
 	asm volatile(".insn rrf,0xb22b0000,%[skey],%[addr],9,0"
@@ -16,7 +17,7 @@ static inline unsigned long sske_frame(unsigned long addr, unsigned char skey)
 	return addr;
 }
 
-void storage_key_init_range(unsigned long start, unsigned long end)
+void __storage_key_init_range(unsigned long start, unsigned long end)
 {
 	unsigned long boundary, size;
 
@@ -36,6 +37,7 @@ void storage_key_init_range(unsigned long start, unsigned long end)
 		start += PAGE_SIZE;
 	}
 }
+#endif
 
 static pte_t *walk_page_table(unsigned long addr)
 {
-- 
cgit 


From 01997bbc924d63e6c4837c5d8dc190245bc473ec Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 7 Oct 2013 16:14:50 +0200
Subject: s390/gup: reduce code duplication between [__]get_user_pages_fast
 functions

Just call __get_user_pages_fast() from get_user_pages_fast() like powerpc.
This saves a lot of duplicated code.

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/mm/gup.c | 81 ++++++++++++++++--------------------------------------
 1 file changed, 23 insertions(+), 58 deletions(-)

diff --git a/arch/s390/mm/gup.c b/arch/s390/mm/gup.c
index 5d758db27bdc..d3a2b819fa0b 100644
--- a/arch/s390/mm/gup.c
+++ b/arch/s390/mm/gup.c
@@ -182,7 +182,13 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
 	end = start + len;
 	if ((end < start) || (end > TASK_SIZE))
 		return 0;
-
+	/*
+	 * local_irq_save() doesn't prevent pagetable teardown, but does
+	 * prevent the pagetables from being freed on s390.
+	 *
+	 * So long as we atomically load page table pointers versus teardown,
+	 * we can follow the address down to the the page and take a ref on it.
+	 */
 	local_irq_save(flags);
 	pgdp = pgd_offset(mm, addr);
 	do {
@@ -219,63 +225,22 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write,
 			struct page **pages)
 {
 	struct mm_struct *mm = current->mm;
-	unsigned long addr, len, end;
-	unsigned long next;
-	pgd_t *pgdp, pgd;
-	int nr = 0;
+	int nr, ret;
 
 	start &= PAGE_MASK;
-	addr = start;
-	len = (unsigned long) nr_pages << PAGE_SHIFT;
-	end = start + len;
-	if ((end < start) || (end > TASK_SIZE))
-		goto slow_irqon;
-
-	/*
-	 * local_irq_disable() doesn't prevent pagetable teardown, but does
-	 * prevent the pagetables from being freed on s390.
-	 *
-	 * So long as we atomically load page table pointers versus teardown,
-	 * we can follow the address down to the the page and take a ref on it.
-	 */
-	local_irq_disable();
-	pgdp = pgd_offset(mm, addr);
-	do {
-		pgd = *pgdp;
-		barrier();
-		next = pgd_addr_end(addr, end);
-		if (pgd_none(pgd))
-			goto slow;
-		if (!gup_pud_range(pgdp, pgd, addr, next, write, pages, &nr))
-			goto slow;
-	} while (pgdp++, addr = next, addr != end);
-	local_irq_enable();
-
-	VM_BUG_ON(nr != (end - start) >> PAGE_SHIFT);
-	return nr;
-
-	{
-		int ret;
-slow:
-		local_irq_enable();
-slow_irqon:
-		/* Try to get the remaining pages with get_user_pages */
-		start += nr << PAGE_SHIFT;
-		pages += nr;
-
-		down_read(&mm->mmap_sem);
-		ret = get_user_pages(current, mm, start,
-			(end - start) >> PAGE_SHIFT, write, 0, pages, NULL);
-		up_read(&mm->mmap_sem);
-
-		/* Have to be a bit careful with return values */
-		if (nr > 0) {
-			if (ret < 0)
-				ret = nr;
-			else
-				ret += nr;
-		}
-
-		return ret;
-	}
+	nr = __get_user_pages_fast(start, nr_pages, write, pages);
+	if (nr == nr_pages)
+		return nr;
+
+	/* Try to get the remaining pages with get_user_pages */
+	start += nr << PAGE_SHIFT;
+	pages += nr;
+	down_read(&mm->mmap_sem);
+	ret = get_user_pages(current, mm, start,
+			     nr_pages - nr, write, 0, pages, NULL);
+	up_read(&mm->mmap_sem);
+	/* Have to be a bit careful with return values */
+	if (nr > 0)
+		ret = (ret < 0) ? nr : ret + nr;
+	return ret;
 }
-- 
cgit 


From eb0bf929d5228ca0eb2758585f2e4e25aa20427e Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Tue, 8 Oct 2013 09:29:09 +0200
Subject: s390/gup: handle zero nr_pages case correctly

If [__]get_user_pages_fast() gets called with nr_pages == 0, the current
code would walk the page tables and pin as many pages until the first
invalid pte (or the kernel crashed while writing struct page pointers to
the pages array).
So let's handle at least the nr_pages == 0 case correctly and exit early.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/mm/gup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/mm/gup.c b/arch/s390/mm/gup.c
index d3a2b819fa0b..639fce464008 100644
--- a/arch/s390/mm/gup.c
+++ b/arch/s390/mm/gup.c
@@ -180,7 +180,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
 	addr = start;
 	len = (unsigned long) nr_pages << PAGE_SHIFT;
 	end = start + len;
-	if ((end < start) || (end > TASK_SIZE))
+	if ((end <= start) || (end > TASK_SIZE))
 		return 0;
 	/*
 	 * local_irq_save() doesn't prevent pagetable teardown, but does
-- 
cgit 


From 72b7fb5fda25e1213cb9f63bf712161c66877552 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Thu, 10 Oct 2013 10:31:22 +0800
Subject: s390/atomic: use 'unsigned int' instead of 'unsigned long' for
 atomic_*_mask()

The type of 'v->counter' is always 'int', and related inline assembly
code also process 'int', so use 'unsigned int' instead of 'unsigned
long' for the 'mask'.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/atomic.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/s390/include/asm/atomic.h b/arch/s390/include/asm/atomic.h
index 47825e5a82eb..fa9aaf7144b7 100644
--- a/arch/s390/include/asm/atomic.h
+++ b/arch/s390/include/asm/atomic.h
@@ -113,12 +113,12 @@ static inline void atomic_add(int i, atomic_t *v)
 #define atomic_dec_return(_v)		atomic_sub_return(1, _v)
 #define atomic_dec_and_test(_v)		(atomic_sub_return(1, _v) == 0)
 
-static inline void atomic_clear_mask(unsigned long mask, atomic_t *v)
+static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
 {
 	__ATOMIC_LOOP(v, ~mask, __ATOMIC_AND);
 }
 
-static inline void atomic_set_mask(unsigned long mask, atomic_t *v)
+static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
 {
 	__ATOMIC_LOOP(v, mask, __ATOMIC_OR);
 }
-- 
cgit 


From 5ff4212f194f97b3a0f41745f231525c5c50dcbb Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Thu, 10 Oct 2013 16:50:55 +0200
Subject: s390/crashdump: remove unused variable

Get rid of this compile warning:

arch/s390/kernel/crash_dump.c: In function 'copy_from_realmem':
arch/s390/kernel/crash_dump.c:48:6: warning: unused variable 'rc'
[-Wunused-variable]
  int rc;
      ^

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/crash_dump.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
index 7dd21720e5b0..3db6af0601a5 100644
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -45,7 +45,6 @@ static inline void *load_real_addr(void *addr)
 static int copy_from_realmem(void *dest, void *src, size_t count)
 {
 	unsigned long size;
-	int rc;
 
 	if (!count)
 		return 0;
-- 
cgit 


From 05e0baaf9ba5a2d173c026530154388f0d2da72c Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Fri, 11 Oct 2013 08:55:57 +0200
Subject: s390/ftrace: prepare_ftrace_return() function call order

Steven Rostedt noted that s390 is the only architecture which calls
ftrace_push_return_trace() before ftrace_graph_entry() and therefore has
the small advantage that trace.depth gets initialized automatically.

However this small advantage isn't worth the difference and possible subtle
breakage that may result from this.
So change s390 to have the same function call order like all other
architectures: first ftrace_graph_entry(), then ftrace_push_return_trace()

Reported-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/ftrace.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c
index 1014ad5f7693..224db03e9518 100644
--- a/arch/s390/kernel/ftrace.c
+++ b/arch/s390/kernel/ftrace.c
@@ -151,14 +151,13 @@ unsigned long __kprobes prepare_ftrace_return(unsigned long parent,
 	if (unlikely(atomic_read(&current->tracing_graph_pause)))
 		goto out;
 	ip = (ip & PSW_ADDR_INSN) - MCOUNT_INSN_SIZE;
-	if (ftrace_push_return_trace(parent, ip, &trace.depth, 0) == -EBUSY)
-		goto out;
 	trace.func = ip;
+	trace.depth = current->curr_ret_stack + 1;
 	/* Only trace if the calling function expects to. */
-	if (!ftrace_graph_entry(&trace)) {
-		current->curr_ret_stack--;
+	if (!ftrace_graph_entry(&trace))
+		goto out;
+	if (ftrace_push_return_trace(parent, ip, &trace.depth, 0) == -EBUSY)
 		goto out;
-	}
 	parent = (unsigned long) return_to_handler;
 out:
 	return parent;
-- 
cgit 


From 5895294274bee046bcfdbb72f8998e2b14e26426 Mon Sep 17 00:00:00 2001
From: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Date: Fri, 11 Oct 2013 10:29:23 +0200
Subject: s390: Remove zfcpdump NR_CPUS dependency

Currently zfpcdump can only collect registers for up to CONFIG_NR_CPUS
CPUss. This dependency is not necessary. So remove it by dynamically
allocating the save area array.

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/ipl.h   |  9 +++++++++
 arch/s390/include/asm/smp.h   |  1 -
 arch/s390/kernel/crash_dump.c | 34 ++++++++++++++++++++++++++++++----
 arch/s390/kernel/smp.c        | 11 +----------
 drivers/s390/char/zcore.c     | 20 +++++++++-----------
 5 files changed, 49 insertions(+), 26 deletions(-)

diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h
index 2bd6cb897b90..ea7d9d6ab06e 100644
--- a/arch/s390/include/asm/ipl.h
+++ b/arch/s390/include/asm/ipl.h
@@ -7,6 +7,7 @@
 #ifndef _ASM_S390_IPL_H
 #define _ASM_S390_IPL_H
 
+#include <asm/lowcore.h>
 #include <asm/types.h>
 #include <asm/cio.h>
 #include <asm/setup.h>
@@ -88,6 +89,14 @@ extern u32 ipl_flags;
 extern u32 dump_prefix_page;
 extern unsigned int zfcpdump_prefix_array[];
 
+struct dump_save_areas {
+	struct save_area **areas;
+	int count;
+};
+
+extern struct dump_save_areas dump_save_areas;
+struct save_area *dump_save_area_create(int cpu);
+
 extern void do_reipl(void);
 extern void do_halt(void);
 extern void do_poff(void);
diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h
index b64f15c3b4cc..ac9bed8e103f 100644
--- a/arch/s390/include/asm/smp.h
+++ b/arch/s390/include/asm/smp.h
@@ -14,7 +14,6 @@
 #define raw_smp_processor_id()	(S390_lowcore.cpu_nr)
 
 extern struct mutex smp_cpu_state_mutex;
-extern struct save_area *zfcpdump_save_areas[NR_CPUS + 1];
 
 extern int __cpu_up(unsigned int cpu, struct task_struct *tidle);
 
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
index 3db6af0601a5..f45b2ab0cb81 100644
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -22,6 +22,32 @@
 #define PTR_SUB(x, y) (((char *) (x)) - ((unsigned long) (y)))
 #define PTR_DIFF(x, y) ((unsigned long)(((char *) (x)) - ((unsigned long) (y))))
 
+struct dump_save_areas dump_save_areas;
+
+/*
+ * Allocate and add a save area for a CPU
+ */
+struct save_area *dump_save_area_create(int cpu)
+{
+	struct save_area **save_areas, *save_area;
+
+	save_area = kmalloc(sizeof(*save_area), GFP_KERNEL);
+	if (!save_area)
+		return NULL;
+	if (cpu + 1 > dump_save_areas.count) {
+		dump_save_areas.count = cpu + 1;
+		save_areas = krealloc(dump_save_areas.areas,
+				      dump_save_areas.count * sizeof(void *),
+				      GFP_KERNEL | __GFP_ZERO);
+		if (!save_areas) {
+			kfree(save_area);
+			return NULL;
+		}
+		dump_save_areas.areas = save_areas;
+	}
+	dump_save_areas.areas[cpu] = save_area;
+	return save_area;
+}
 
 /*
  * Return physical address for virtual address
@@ -450,8 +476,8 @@ static int get_cpu_cnt(void)
 {
 	int i, cpus = 0;
 
-	for (i = 0; zfcpdump_save_areas[i]; i++) {
-		if (zfcpdump_save_areas[i]->pref_reg == 0)
+	for (i = 0; i < dump_save_areas.count; i++) {
+		if (dump_save_areas.areas[i]->pref_reg == 0)
 			continue;
 		cpus++;
 	}
@@ -522,8 +548,8 @@ static void *notes_init(Elf64_Phdr *phdr, void *ptr, u64 notes_offset)
 
 	ptr = nt_prpsinfo(ptr);
 
-	for (i = 0; zfcpdump_save_areas[i]; i++) {
-		sa = zfcpdump_save_areas[i];
+	for (i = 0; i < dump_save_areas.count; i++) {
+		sa = dump_save_areas.areas[i];
 		if (sa->pref_reg == 0)
 			continue;
 		ptr = fill_cpu_elf_notes(ptr, sa);
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index cca6cf6abacc..739313db71e5 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -533,9 +533,6 @@ EXPORT_SYMBOL(smp_ctl_clear_bit);
 
 #if defined(CONFIG_ZFCPDUMP) || defined(CONFIG_CRASH_DUMP)
 
-struct save_area *zfcpdump_save_areas[NR_CPUS + 1];
-EXPORT_SYMBOL_GPL(zfcpdump_save_areas);
-
 static void __init smp_get_save_area(int cpu, u16 address)
 {
 	void *lc = pcpu_devices[0].lowcore;
@@ -546,15 +543,9 @@ static void __init smp_get_save_area(int cpu, u16 address)
 	if (!OLDMEM_BASE && (address == boot_cpu_address ||
 			     ipl_info.type != IPL_TYPE_FCP_DUMP))
 		return;
-	if (cpu >= NR_CPUS) {
-		pr_warning("CPU %i exceeds the maximum %i and is excluded "
-			   "from the dump\n", cpu, NR_CPUS - 1);
-		return;
-	}
-	save_area = kmalloc(sizeof(struct save_area), GFP_KERNEL);
+	save_area = dump_save_area_create(cpu);
 	if (!save_area)
 		panic("could not allocate memory for save area\n");
-	zfcpdump_save_areas[cpu] = save_area;
 #ifdef CONFIG_CRASH_DUMP
 	if (address == boot_cpu_address) {
 		/* Copy the registers of the boot cpu. */
diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c
index 794820a123d0..ffb1fcf0bf5b 100644
--- a/drivers/s390/char/zcore.c
+++ b/drivers/s390/char/zcore.c
@@ -151,7 +151,7 @@ static int __init init_cpu_info(enum arch_id arch)
 
 	/* get info for boot cpu from lowcore, stored in the HSA */
 
-	sa = kmalloc(sizeof(*sa), GFP_KERNEL);
+	sa = dump_save_area_create(0);
 	if (!sa)
 		return -ENOMEM;
 	if (memcpy_hsa_kernel(sa, sys_info.sa_base, sys_info.sa_size) < 0) {
@@ -159,7 +159,6 @@ static int __init init_cpu_info(enum arch_id arch)
 		kfree(sa);
 		return -EIO;
 	}
-	zfcpdump_save_areas[0] = sa;
 	return 0;
 }
 
@@ -246,24 +245,25 @@ static int copy_lc(void __user *buf, void *sa, int sa_off, int len)
 static int zcore_add_lc(char __user *buf, unsigned long start, size_t count)
 {
 	unsigned long end;
-	int i = 0;
+	int i;
 
 	if (count == 0)
 		return 0;
 
 	end = start + count;
-	while (zfcpdump_save_areas[i]) {
+	for (i = 0; i < dump_save_areas.count; i++) {
 		unsigned long cp_start, cp_end; /* copy range */
 		unsigned long sa_start, sa_end; /* save area range */
 		unsigned long prefix;
 		unsigned long sa_off, len, buf_off;
+		struct save_area *save_area = dump_save_areas.areas[i];
 
-		prefix = zfcpdump_save_areas[i]->pref_reg;
+		prefix = save_area->pref_reg;
 		sa_start = prefix + sys_info.sa_base;
 		sa_end = prefix + sys_info.sa_base + sys_info.sa_size;
 
 		if ((end < sa_start) || (start > sa_end))
-			goto next;
+			continue;
 		cp_start = max(start, sa_start);
 		cp_end = min(end, sa_end);
 
@@ -272,10 +272,8 @@ static int zcore_add_lc(char __user *buf, unsigned long start, size_t count)
 		len = cp_end - cp_start;
 
 		TRACE("copy_lc for: %lx\n", start);
-		if (copy_lc(buf + buf_off, zfcpdump_save_areas[i], sa_off, len))
+		if (copy_lc(buf + buf_off, save_area, sa_off, len))
 			return -EFAULT;
-next:
-		i++;
 	}
 	return 0;
 }
@@ -637,8 +635,8 @@ static void __init zcore_header_init(int arch, struct zcore_header *hdr,
 	hdr->num_pages = mem_size / PAGE_SIZE;
 	hdr->tod = get_tod_clock();
 	get_cpu_id(&hdr->cpu_id);
-	for (i = 0; zfcpdump_save_areas[i]; i++) {
-		prefix = zfcpdump_save_areas[i]->pref_reg;
+	for (i = 0; i < dump_save_areas.count; i++) {
+		prefix = dump_save_areas.areas[i]->pref_reg;
 		hdr->real_cpu_cnt++;
 		if (!prefix)
 			continue;
-- 
cgit 


From 8a80b10895cee6ab5afe66ef0b26ad70cbd423b3 Mon Sep 17 00:00:00 2001
From: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Date: Fri, 11 Oct 2013 11:01:17 +0200
Subject: s390/cio: fix error-prone defines

Missing parenthesis may cause problems when using the defines
together with operations of higher precedence.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/fcx.h | 38 +++++++++++++++++++-------------------
 1 file changed, 19 insertions(+), 19 deletions(-)

diff --git a/arch/s390/include/asm/fcx.h b/arch/s390/include/asm/fcx.h
index ef6170995076..7ecb92b469b6 100644
--- a/arch/s390/include/asm/fcx.h
+++ b/arch/s390/include/asm/fcx.h
@@ -12,9 +12,9 @@
 
 #define TCW_FORMAT_DEFAULT		0
 #define TCW_TIDAW_FORMAT_DEFAULT	0
-#define TCW_FLAGS_INPUT_TIDA		1 << (23 - 5)
-#define TCW_FLAGS_TCCB_TIDA		1 << (23 - 6)
-#define TCW_FLAGS_OUTPUT_TIDA		1 << (23 - 7)
+#define TCW_FLAGS_INPUT_TIDA		(1 << (23 - 5))
+#define TCW_FLAGS_TCCB_TIDA		(1 << (23 - 6))
+#define TCW_FLAGS_OUTPUT_TIDA		(1 << (23 - 7))
 #define TCW_FLAGS_TIDAW_FORMAT(x)	((x) & 3) << (23 - 9)
 #define TCW_FLAGS_GET_TIDAW_FORMAT(x)	(((x) >> (23 - 9)) & 3)
 
@@ -54,11 +54,11 @@ struct tcw {
 	u32 intrg;
 } __attribute__ ((packed, aligned(64)));
 
-#define TIDAW_FLAGS_LAST		1 << (7 - 0)
-#define TIDAW_FLAGS_SKIP		1 << (7 - 1)
-#define TIDAW_FLAGS_DATA_INT		1 << (7 - 2)
-#define TIDAW_FLAGS_TTIC		1 << (7 - 3)
-#define TIDAW_FLAGS_INSERT_CBC		1 << (7 - 4)
+#define TIDAW_FLAGS_LAST		(1 << (7 - 0))
+#define TIDAW_FLAGS_SKIP		(1 << (7 - 1))
+#define TIDAW_FLAGS_DATA_INT		(1 << (7 - 2))
+#define TIDAW_FLAGS_TTIC		(1 << (7 - 3))
+#define TIDAW_FLAGS_INSERT_CBC		(1 << (7 - 4))
 
 /**
  * struct tidaw - Transport-Indirect-Addressing Word (TIDAW)
@@ -106,9 +106,9 @@ struct tsa_ddpc {
 	u8 sense[32];
 } __attribute__ ((packed));
 
-#define TSA_INTRG_FLAGS_CU_STATE_VALID		1 << (7 - 0)
-#define TSA_INTRG_FLAGS_DEV_STATE_VALID		1 << (7 - 1)
-#define TSA_INTRG_FLAGS_OP_STATE_VALID		1 << (7 - 2)
+#define TSA_INTRG_FLAGS_CU_STATE_VALID		(1 << (7 - 0))
+#define TSA_INTRG_FLAGS_DEV_STATE_VALID		(1 << (7 - 1))
+#define TSA_INTRG_FLAGS_OP_STATE_VALID		(1 << (7 - 2))
 
 /**
  * struct tsa_intrg - Interrogate Transport-Status Area (Intrg. TSA)
@@ -140,10 +140,10 @@ struct tsa_intrg {
 #define TSB_FORMAT_DDPC		2
 #define TSB_FORMAT_INTRG	3
 
-#define TSB_FLAGS_DCW_OFFSET_VALID	1 << (7 - 0)
-#define TSB_FLAGS_COUNT_VALID		1 << (7 - 1)
-#define TSB_FLAGS_CACHE_MISS		1 << (7 - 2)
-#define TSB_FLAGS_TIME_VALID		1 << (7 - 3)
+#define TSB_FLAGS_DCW_OFFSET_VALID	(1 << (7 - 0))
+#define TSB_FLAGS_COUNT_VALID		(1 << (7 - 1))
+#define TSB_FLAGS_CACHE_MISS		(1 << (7 - 2))
+#define TSB_FLAGS_TIME_VALID		(1 << (7 - 3))
 #define TSB_FLAGS_FORMAT(x)		((x) & 7)
 #define TSB_FORMAT(t)			((t)->flags & 7)
 
@@ -179,9 +179,9 @@ struct tsb {
 #define DCW_INTRG_RCQ_PRIMARY		1
 #define DCW_INTRG_RCQ_SECONDARY		2
 
-#define DCW_INTRG_FLAGS_MPM		1 < (7 - 0)
-#define DCW_INTRG_FLAGS_PPR		1 < (7 - 1)
-#define DCW_INTRG_FLAGS_CRIT		1 < (7 - 2)
+#define DCW_INTRG_FLAGS_MPM		(1 << (7 - 0))
+#define DCW_INTRG_FLAGS_PPR		(1 << (7 - 1))
+#define DCW_INTRG_FLAGS_CRIT		(1 << (7 - 2))
 
 /**
  * struct dcw_intrg_data - Interrogate DCW data
@@ -216,7 +216,7 @@ struct dcw_intrg_data {
 	u8  prog_data[0];
 } __attribute__ ((packed));
 
-#define DCW_FLAGS_CC		1 << (7 - 1)
+#define DCW_FLAGS_CC		(1 << (7 - 1))
 
 #define DCW_CMD_WRITE		0x01
 #define DCW_CMD_READ		0x02
-- 
cgit 


From f5be85a2d3b06e660d90dd672ae54015be3f62a9 Mon Sep 17 00:00:00 2001
From: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Date: Mon, 14 Oct 2013 10:35:48 +0200
Subject: s390: Remove unused declaration of zfcpdump_prefix_array[]

Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/ipl.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/s390/include/asm/ipl.h b/arch/s390/include/asm/ipl.h
index ea7d9d6ab06e..2fcccc0c997c 100644
--- a/arch/s390/include/asm/ipl.h
+++ b/arch/s390/include/asm/ipl.h
@@ -87,7 +87,6 @@ struct ipl_parameter_block {
  */
 extern u32 ipl_flags;
 extern u32 dump_prefix_page;
-extern unsigned int zfcpdump_prefix_array[];
 
 struct dump_save_areas {
 	struct save_area **areas;
-- 
cgit 


From f8544ec4f49ffb9cb93419e41f0d8c0fb39eb78f Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 14 Oct 2013 13:34:28 +0200
Subject: s390/compat,signal: change return values to -EFAULT

Instead of returnin the number of bytes not copied and/or -EFAULT let the
signal handler helper functions always return -EFAULT if a user space
access failed.
This doesn't fix a bug in the current code, but makes is harder to get it
wrong in the future.
Also "smatch" won't complain anymore about the fact that the number of
remaining bytes gets returned instead of -EFAULT.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/compat_signal.c | 25 ++++++++++++++-----------
 arch/s390/kernel/signal.c        | 11 +++++------
 2 files changed, 19 insertions(+), 17 deletions(-)

diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index ee820079c06d..b7b60f5cc54b 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -166,11 +166,14 @@ static int save_sigregs32(struct pt_regs *regs, _sigregs32 __user *sregs)
 	memcpy(regs32.acrs, current->thread.acrs, sizeof(regs32.acrs));
 	err = __copy_to_user(&sregs->regs, &regs32, sizeof(regs32));
 	if (err)
-		return err;
+		return -EFAULT;
 	save_fp_regs(&current->thread.fp_regs);
 	/* s390_fp_regs and _s390_fp_regs32 are the same ! */
-	return __copy_to_user(&sregs->fpregs, &current->thread.fp_regs,
-			      sizeof(_s390_fp_regs32));
+	err = __copy_to_user(&sregs->fpregs, &current->thread.fp_regs,
+			     sizeof(_s390_fp_regs32));
+	if (err)
+		return -EFAULT;
+	return 0;
 }
 
 static int restore_sigregs32(struct pt_regs *regs,_sigregs32 __user *sregs)
@@ -183,7 +186,7 @@ static int restore_sigregs32(struct pt_regs *regs,_sigregs32 __user *sregs)
 
 	err = __copy_from_user(&regs32, &sregs->regs, sizeof(regs32));
 	if (err)
-		return err;
+		return -EFAULT;
 	regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
 		(__u64)(regs32.psw.mask & PSW32_MASK_USER) << 32 |
 		(__u64)(regs32.psw.addr & PSW32_ADDR_AMODE);
@@ -201,7 +204,7 @@ static int restore_sigregs32(struct pt_regs *regs,_sigregs32 __user *sregs)
 			       sizeof(_s390_fp_regs32));
 	current->thread.fp_regs.fpc &= FPC_VALID_MASK;
 	if (err)
-		return err;
+		return -EFAULT;
 
 	restore_fp_regs(&current->thread.fp_regs);
 	clear_thread_flag(TIF_SYSCALL);	/* No longer in a system call */
@@ -215,18 +218,18 @@ static int save_sigregs_gprs_high(struct pt_regs *regs, __u32 __user *uregs)
 
 	for (i = 0; i < NUM_GPRS; i++)
 		gprs_high[i] = regs->gprs[i] >> 32;
-
-	return __copy_to_user(uregs, &gprs_high, sizeof(gprs_high));
+	if (__copy_to_user(uregs, &gprs_high, sizeof(gprs_high)))
+		return -EFAULT;
+	return 0;
 }
 
 static int restore_sigregs_gprs_high(struct pt_regs *regs, __u32 __user *uregs)
 {
 	__u32 gprs_high[NUM_GPRS];
-	int err, i;
+	int i;
 
-	err = __copy_from_user(&gprs_high, uregs, sizeof(gprs_high));
-	if (err)
-		return err;
+	if (__copy_from_user(&gprs_high, uregs, sizeof(gprs_high)))
+		return -EFAULT;
 	for (i = 0; i < NUM_GPRS; i++)
 		*(__u32 *)&regs->gprs[i] = gprs_high[i];
 	return 0;
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index b4fa7c0223e5..5c0ce019a8ae 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -70,21 +70,20 @@ static int save_sigregs(struct pt_regs *regs, _sigregs __user *sregs)
 	save_fp_regs(&current->thread.fp_regs);
 	memcpy(&user_sregs.fpregs, &current->thread.fp_regs,
 	       sizeof(s390_fp_regs));
-	return __copy_to_user(sregs, &user_sregs, sizeof(_sigregs));
+	if (__copy_to_user(sregs, &user_sregs, sizeof(_sigregs)))
+		return -EFAULT;
+	return 0;
 }
 
-/* Returns positive number on error */
 static int restore_sigregs(struct pt_regs *regs, _sigregs __user *sregs)
 {
-	int err;
 	_sigregs user_sregs;
 
 	/* Alwys make any pending restarted system call return -EINTR */
 	current_thread_info()->restart_block.fn = do_no_restart_syscall;
 
-	err = __copy_from_user(&user_sregs, sregs, sizeof(_sigregs));
-	if (err)
-		return err;
+	if (__copy_from_user(&user_sregs, sregs, sizeof(_sigregs)))
+		return -EFAULT;
 	/* Use regs->psw.mask instead of PSW_USER_BITS to preserve PER bit. */
 	regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
 		(user_sregs.regs.psw.mask & PSW_MASK_USER);
-- 
cgit 


From 160d378ebc76a796cc16ae873baeed02992f9202 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 14 Oct 2013 13:48:41 +0200
Subject: s390/cache: get rid of compile warning

Get rid of this one:

arch/s390/kernel/cache.c: In function 'cache_build_info':
arch/s390/kernel/cache.c:144: warning: 'private' may be used uninitialized
in this function

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/cache.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/s390/kernel/cache.c b/arch/s390/kernel/cache.c
index dd62071624be..3a414c0f93ed 100644
--- a/arch/s390/kernel/cache.c
+++ b/arch/s390/kernel/cache.c
@@ -146,15 +146,14 @@ static void __init cache_build_info(void)
 	ct.raw = ecag(EXTRACT_TOPOLOGY, 0, 0);
 	for (level = 0; level < CACHE_MAX_LEVEL; level++) {
 		switch (ct.ci[level].scope) {
-		case CACHE_SCOPE_NOTEXISTS:
-		case CACHE_SCOPE_RESERVED:
-			return;
 		case CACHE_SCOPE_SHARED:
 			private = 0;
 			break;
 		case CACHE_SCOPE_PRIVATE:
 			private = 1;
 			break;
+		default:
+			return;
 		}
 		if (ct.ci[level].type == CACHE_TYPE_SEPARATE) {
 			rc  = cache_add(level, private, CACHE_TYPE_DATA);
-- 
cgit 


From 041058a16a71a1257a1c3c19a55d74641912b918 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 14 Oct 2013 13:58:10 +0200
Subject: s390/cmm: make copy_from_user() invocation provably correct

Get rid of these two warnings:

In function 'copy_from_user',
    inlined from 'cmm_timeout_handler' at arch/s390/mm/cmm.c:310:
      uaccess.h:303: warning: call to 'copy_from_user_overflow' declared
      with attribute warning: copy_from_user() buffer size is not provably
      correct
In function 'copy_from_user',
    inlined from 'cmm_pages_handler' at arch/s390/mm/cmm.c:270:
      uaccess.h:303: warning: call to 'copy_from_user_overflow' declared
      with attribute warning: copy_from_user() buffer size is not provably
      correct

Change the "len" type to unsigned int, so we can make sure that there is no
buffer overflow. This also generates less code.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/mm/cmm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/s390/mm/cmm.c b/arch/s390/mm/cmm.c
index 9d84a1feefef..76741306af2a 100644
--- a/arch/s390/mm/cmm.c
+++ b/arch/s390/mm/cmm.c
@@ -257,8 +257,8 @@ static int cmm_pages_handler(ctl_table *ctl, int write, void __user *buffer,
 			     size_t *lenp, loff_t *ppos)
 {
 	char buf[16], *p;
+	unsigned int len;
 	long nr;
-	int len;
 
 	if (!*lenp || (*ppos && !write)) {
 		*lenp = 0;
@@ -298,7 +298,7 @@ static int cmm_timeout_handler(ctl_table *ctl, int write,  void __user *buffer,
 {
 	char buf[64], *p;
 	long nr, seconds;
-	int len;
+	unsigned int len;
 
 	if (!*lenp || (*ppos && !write)) {
 		*lenp = 0;
-- 
cgit 


From 57f47ba0cb74303230a373d27238a0aaa0df3775 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 14 Oct 2013 14:08:35 +0200
Subject: s390/appldata: make copy_from_user() invocations provably correct

Just change the type of "len" to unsigned int so the compiler can prove
that we don't have a buffer overflow (and generates less code).
We get rid of these:

In function 'copy_from_user',
    inlined from 'appldata_interval_handler' at
    arch/s390/appldata/appldata_base.c:265:
      uaccess.h:303: warning: call to 'copy_from_user_overflow' declared
      with attribute warning: copy_from_user() buffer size is not provably
      correct
In function 'copy_from_user',
    inlined from 'appldata_timer_handler' at
    arch/s390/appldata/appldata_base.c:225:
      uaccess.h:303: warning: call to 'copy_from_user_overflow' declared
      with attribute warning: copy_from_user() buffer size is not provably
      correct
In function 'copy_from_user',
    inlined from 'appldata_generic_handler' at
    arch/s390/appldata/appldata_base.c:333:
      uaccess.h:303: warning: call to 'copy_from_user_overflow' declared
      with attribute warning: copy_from_user() buffer size is not provably
      correct

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/appldata/appldata_base.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c
index 87a22092b68f..603d2003cd9f 100644
--- a/arch/s390/appldata/appldata_base.c
+++ b/arch/s390/appldata/appldata_base.c
@@ -204,7 +204,7 @@ static int
 appldata_timer_handler(ctl_table *ctl, int write,
 			   void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	int len;
+	unsigned int len;
 	char buf[2];
 
 	if (!*lenp || *ppos) {
@@ -246,7 +246,8 @@ static int
 appldata_interval_handler(ctl_table *ctl, int write,
 			   void __user *buffer, size_t *lenp, loff_t *ppos)
 {
-	int len, interval;
+	unsigned int len;
+	int interval;
 	char buf[16];
 
 	if (!*lenp || *ppos) {
@@ -290,7 +291,8 @@ appldata_generic_handler(ctl_table *ctl, int write,
 			   void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct appldata_ops *ops = NULL, *tmp_ops;
-	int rc, len, found;
+	unsigned int len;
+	int rc, found;
 	char buf[2];
 	struct list_head *lh;
 
-- 
cgit 


From 3cf11d776aafdb8540f4ba2c57376d2089f77dba Mon Sep 17 00:00:00 2001
From: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Date: Mon, 14 Oct 2013 15:51:31 +0200
Subject: s390/monwriter: fix smatch warning for strcpy()

This patch fixes the following smatch warning:
monwrite_diag() error: strcpy() '"LNXAPPL"' too large for 'id.prod_nr'
(8 vs 7)
Using strcpy() is wrong, because it also copies the terminating null
byte, but in this case the extra copied null byte will be overwritten
right after the strcpy(), so there is no real problem here.
Use strncpy() to fix the warning.

Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/s390/char/monwriter.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/s390/char/monwriter.c b/drivers/s390/char/monwriter.c
index 4600aa10a1c6..668b32b0dc1d 100644
--- a/drivers/s390/char/monwriter.c
+++ b/drivers/s390/char/monwriter.c
@@ -60,7 +60,7 @@ static int monwrite_diag(struct monwrite_hdr *myhdr, char *buffer, int fcn)
 	struct appldata_product_id id;
 	int rc;
 
-	strcpy(id.prod_nr, "LNXAPPL");
+	strncpy(id.prod_nr, "LNXAPPL", 7);
 	id.prod_fn = myhdr->applid;
 	id.record_nr = myhdr->record_num;
 	id.version_nr = myhdr->version;
-- 
cgit 


From dc3ac5ff82e768385a7c787a211cfb131bc1924b Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Mon, 14 Oct 2013 16:48:29 +0200
Subject: s390/3270: remove unnecessary pointer check

Make smatch happy and remove this warning:

drivers/s390/char/raw3270.c:347 raw3270_irq() error: we previously
 assumed 'rq' could be null (see line 342)

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/s390/char/raw3270.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c
index 24a08e8f19e1..c90ae6a6b8b5 100644
--- a/drivers/s390/char/raw3270.c
+++ b/drivers/s390/char/raw3270.c
@@ -615,7 +615,7 @@ raw3270_reset_device_cb(struct raw3270_request *rq, void *data)
 
 	if (rp->state != RAW3270_STATE_RESET)
 		return;
-	if (rq && rq->rc) {
+	if (rq->rc) {
 		/* Reset command failed. */
 		rp->state = RAW3270_STATE_INIT;
 	} else if (0 && MACHINE_IS_VM) {
-- 
cgit 


From 4f57ba716b12ab939d46b7910768c3da3623fdc1 Mon Sep 17 00:00:00 2001
From: Ingo Tuchscherer <ingo.tuchscherer@de.ibm.com>
Date: Tue, 15 Oct 2013 11:24:07 +0200
Subject: s390/crypto: fix aes_s390 crypto module unload problem

If a machine has no hardware support for the xts-aes or ctr-aes algorithms
they are not registered in aes_s390_init. But aes_s390_fini unconditionally
unregisters the algorithms which causes crypto_remove_alg to crash.
Add two flag variables to remember if xts-aes and ctr-aes have been added.

Signed-off-by: Ingo Tuchscherer <ingo.tuchscherer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/crypto/aes_s390.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index b4dbade8ca24..46cae138ece2 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -725,6 +725,8 @@ static struct crypto_alg xts_aes_alg = {
 	}
 };
 
+static int xts_aes_alg_reg;
+
 static int ctr_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
 			   unsigned int key_len)
 {
@@ -846,6 +848,8 @@ static struct crypto_alg ctr_aes_alg = {
 	}
 };
 
+static int ctr_aes_alg_reg;
+
 static int __init aes_s390_init(void)
 {
 	int ret;
@@ -884,6 +888,7 @@ static int __init aes_s390_init(void)
 		ret = crypto_register_alg(&xts_aes_alg);
 		if (ret)
 			goto xts_aes_err;
+		xts_aes_alg_reg = 1;
 	}
 
 	if (crypt_s390_func_available(KMCTR_AES_128_ENCRYPT,
@@ -902,6 +907,7 @@ static int __init aes_s390_init(void)
 			free_page((unsigned long) ctrblk);
 			goto ctr_aes_err;
 		}
+		ctr_aes_alg_reg = 1;
 	}
 
 out:
@@ -921,9 +927,12 @@ aes_err:
 
 static void __exit aes_s390_fini(void)
 {
-	crypto_unregister_alg(&ctr_aes_alg);
-	free_page((unsigned long) ctrblk);
-	crypto_unregister_alg(&xts_aes_alg);
+	if (ctr_aes_alg_reg) {
+		crypto_unregister_alg(&ctr_aes_alg);
+		free_page((unsigned long) ctrblk);
+	}
+	if (xts_aes_alg_reg)
+		crypto_unregister_alg(&xts_aes_alg);
 	crypto_unregister_alg(&cbc_aes_alg);
 	crypto_unregister_alg(&ecb_aes_alg);
 	crypto_unregister_alg(&aes_alg);
-- 
cgit 


From 01a7cfa24afd8e18ce691d3c2f1e1f093cf3a900 Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Tue, 15 Oct 2013 13:41:05 +0200
Subject: s390/3270: use diagnose 0x210 for device sensing under z/VM

There is a debugging leftover from git commit 4d334fd155b53adf
"s390/3270: asynchronous size sensing" in raw3270_reset_device_cb.
Under z/VM the diagnose 0x210 can be used to find the correct
size of the 3270 terminal.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/s390/char/raw3270.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c
index c90ae6a6b8b5..2cdec21e8924 100644
--- a/drivers/s390/char/raw3270.c
+++ b/drivers/s390/char/raw3270.c
@@ -618,7 +618,7 @@ raw3270_reset_device_cb(struct raw3270_request *rq, void *data)
 	if (rq->rc) {
 		/* Reset command failed. */
 		rp->state = RAW3270_STATE_INIT;
-	} else if (0 && MACHINE_IS_VM) {
+	} else if (MACHINE_IS_VM) {
 		raw3270_size_device_vm(rp);
 		raw3270_size_device_done(rp);
 	} else
-- 
cgit 


From 4725c86055f5bbdcdfe47199c0715881893a2c79 Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Tue, 15 Oct 2013 16:08:34 +0200
Subject: s390: fix save and restore of the floating-point-control register

The FPC_VALID_MASK has been used to check the validity of the value
to be loaded into the floating-point-control register. With the
introduction of the floating-point extension facility and the
decimal-floating-point additional bits have been defined which need
to be checked in a non straight forward way. So far these bits have
been ignored which can cause an incorrect results for decimal-
floating-point operations, e.g. an incorrect rounding mode to be
set after signal return.

The static check with the FPC_VALID_MASK is replaced with a trial
load of the floating-point-control value, see test_fp_ctl.

In addition an information leak with the padding word between the
floating-point-control word and the floating-point registers in
the s390_fp_regs is fixed.

Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/switch_to.h       | 124 +++++++++++++++++++++-----------
 arch/s390/include/uapi/asm/ptrace.h     |   2 +-
 arch/s390/include/uapi/asm/sigcontext.h |   1 +
 arch/s390/kernel/compat_linux.h         |   1 +
 arch/s390/kernel/compat_signal.c        |  59 +++++++--------
 arch/s390/kernel/process.c              |  13 ++--
 arch/s390/kernel/ptrace.c               |  40 ++++++-----
 arch/s390/kernel/signal.c               |  21 +++---
 arch/s390/kvm/kvm-s390.c                |  23 +++---
 arch/s390/math-emu/math.c               |   2 +
 10 files changed, 175 insertions(+), 111 deletions(-)

diff --git a/arch/s390/include/asm/switch_to.h b/arch/s390/include/asm/switch_to.h
index 6dbd559763c9..29c81f82705e 100644
--- a/arch/s390/include/asm/switch_to.h
+++ b/arch/s390/include/asm/switch_to.h
@@ -13,58 +13,94 @@
 extern struct task_struct *__switch_to(void *, void *);
 extern void update_cr_regs(struct task_struct *task);
 
-static inline void save_fp_regs(s390_fp_regs *fpregs)
+static inline int test_fp_ctl(u32 fpc)
 {
+	u32 orig_fpc;
+	int rc;
+
+	if (!MACHINE_HAS_IEEE)
+		return 0;
+
 	asm volatile(
-		"	std	0,%O0+8(%R0)\n"
-		"	std	2,%O0+24(%R0)\n"
-		"	std	4,%O0+40(%R0)\n"
-		"	std	6,%O0+56(%R0)"
-		: "=Q" (*fpregs) : "Q" (*fpregs));
+		"	efpc    %1\n"
+		"	sfpc	%2\n"
+		"0:	sfpc	%1\n"
+		"	la	%0,0\n"
+		"1:\n"
+		EX_TABLE(0b,1b)
+		: "=d" (rc), "=d" (orig_fpc)
+		: "d" (fpc), "0" (-EINVAL));
+	return rc;
+}
+
+static inline void save_fp_ctl(u32 *fpc)
+{
 	if (!MACHINE_HAS_IEEE)
 		return;
+
 	asm volatile(
-		"	stfpc	%0\n"
-		"	std	1,%O0+16(%R0)\n"
-		"	std	3,%O0+32(%R0)\n"
-		"	std	5,%O0+48(%R0)\n"
-		"	std	7,%O0+64(%R0)\n"
-		"	std	8,%O0+72(%R0)\n"
-		"	std	9,%O0+80(%R0)\n"
-		"	std	10,%O0+88(%R0)\n"
-		"	std	11,%O0+96(%R0)\n"
-		"	std	12,%O0+104(%R0)\n"
-		"	std	13,%O0+112(%R0)\n"
-		"	std	14,%O0+120(%R0)\n"
-		"	std	15,%O0+128(%R0)\n"
-		: "=Q" (*fpregs) : "Q" (*fpregs));
+		"       stfpc   %0\n"
+		: "+Q" (*fpc));
 }
 
-static inline void restore_fp_regs(s390_fp_regs *fpregs)
+static inline int restore_fp_ctl(u32 *fpc)
 {
+	int rc;
+
+	if (!MACHINE_HAS_IEEE)
+		return 0;
+
 	asm volatile(
-		"	ld	0,%O0+8(%R0)\n"
-		"	ld	2,%O0+24(%R0)\n"
-		"	ld	4,%O0+40(%R0)\n"
-		"	ld	6,%O0+56(%R0)"
-		: : "Q" (*fpregs));
+		"0:	lfpc    %1\n"
+		"	la	%0,0\n"
+		"1:\n"
+		EX_TABLE(0b,1b)
+		: "=d" (rc) : "Q" (*fpc), "0" (-EINVAL));
+	return rc;
+}
+
+static inline void save_fp_regs(freg_t *fprs)
+{
+	asm volatile("std 0,%0" : "=Q" (fprs[0]));
+	asm volatile("std 2,%0" : "=Q" (fprs[2]));
+	asm volatile("std 4,%0" : "=Q" (fprs[4]));
+	asm volatile("std 6,%0" : "=Q" (fprs[6]));
 	if (!MACHINE_HAS_IEEE)
 		return;
-	asm volatile(
-		"	lfpc	%0\n"
-		"	ld	1,%O0+16(%R0)\n"
-		"	ld	3,%O0+32(%R0)\n"
-		"	ld	5,%O0+48(%R0)\n"
-		"	ld	7,%O0+64(%R0)\n"
-		"	ld	8,%O0+72(%R0)\n"
-		"	ld	9,%O0+80(%R0)\n"
-		"	ld	10,%O0+88(%R0)\n"
-		"	ld	11,%O0+96(%R0)\n"
-		"	ld	12,%O0+104(%R0)\n"
-		"	ld	13,%O0+112(%R0)\n"
-		"	ld	14,%O0+120(%R0)\n"
-		"	ld	15,%O0+128(%R0)\n"
-		: : "Q" (*fpregs));
+	asm volatile("std 1,%0" : "=Q" (fprs[1]));
+	asm volatile("std 3,%0" : "=Q" (fprs[3]));
+	asm volatile("std 5,%0" : "=Q" (fprs[5]));
+	asm volatile("std 7,%0" : "=Q" (fprs[7]));
+	asm volatile("std 8,%0" : "=Q" (fprs[8]));
+	asm volatile("std 9,%0" : "=Q" (fprs[9]));
+	asm volatile("std 10,%0" : "=Q" (fprs[10]));
+	asm volatile("std 11,%0" : "=Q" (fprs[11]));
+	asm volatile("std 12,%0" : "=Q" (fprs[12]));
+	asm volatile("std 13,%0" : "=Q" (fprs[13]));
+	asm volatile("std 14,%0" : "=Q" (fprs[14]));
+	asm volatile("std 15,%0" : "=Q" (fprs[15]));
+}
+
+static inline void restore_fp_regs(freg_t *fprs)
+{
+	asm volatile("ld 0,%0" : : "Q" (fprs[0]));
+	asm volatile("ld 2,%0" : : "Q" (fprs[2]));
+	asm volatile("ld 4,%0" : : "Q" (fprs[4]));
+	asm volatile("ld 6,%0" : : "Q" (fprs[6]));
+	if (!MACHINE_HAS_IEEE)
+		return;
+	asm volatile("ld 1,%0" : : "Q" (fprs[1]));
+	asm volatile("ld 3,%0" : : "Q" (fprs[3]));
+	asm volatile("ld 5,%0" : : "Q" (fprs[5]));
+	asm volatile("ld 7,%0" : : "Q" (fprs[7]));
+	asm volatile("ld 8,%0" : : "Q" (fprs[8]));
+	asm volatile("ld 9,%0" : : "Q" (fprs[9]));
+	asm volatile("ld 10,%0" : : "Q" (fprs[10]));
+	asm volatile("ld 11,%0" : : "Q" (fprs[11]));
+	asm volatile("ld 12,%0" : : "Q" (fprs[12]));
+	asm volatile("ld 13,%0" : : "Q" (fprs[13]));
+	asm volatile("ld 14,%0" : : "Q" (fprs[14]));
+	asm volatile("ld 15,%0" : : "Q" (fprs[15]));
 }
 
 static inline void save_access_regs(unsigned int *acrs)
@@ -83,12 +119,14 @@ static inline void restore_access_regs(unsigned int *acrs)
 
 #define switch_to(prev,next,last) do {					\
 	if (prev->mm) {							\
-		save_fp_regs(&prev->thread.fp_regs);			\
+		save_fp_ctl(&prev->thread.fp_regs.fpc);			\
+		save_fp_regs(prev->thread.fp_regs.fprs);		\
 		save_access_regs(&prev->thread.acrs[0]);		\
 		save_ri_cb(prev->thread.ri_cb);				\
 	}								\
 	if (next->mm) {							\
-		restore_fp_regs(&next->thread.fp_regs);			\
+		restore_fp_ctl(&next->thread.fp_regs.fpc);		\
+		restore_fp_regs(next->thread.fp_regs.fprs);		\
 		restore_access_regs(&next->thread.acrs[0]);		\
 		restore_ri_cb(next->thread.ri_cb, prev->thread.ri_cb);	\
 		update_cr_regs(next);					\
diff --git a/arch/s390/include/uapi/asm/ptrace.h b/arch/s390/include/uapi/asm/ptrace.h
index 7a84619e315e..1d2f47548e1d 100644
--- a/arch/s390/include/uapi/asm/ptrace.h
+++ b/arch/s390/include/uapi/asm/ptrace.h
@@ -199,6 +199,7 @@ typedef union
 typedef struct
 {
 	__u32   fpc;
+	__u32	pad;
 	freg_t  fprs[NUM_FPRS];              
 } s390_fp_regs;
 
@@ -206,7 +207,6 @@ typedef struct
 #define FPC_FLAGS_MASK          0x00F80000
 #define FPC_DXC_MASK            0x0000FF00
 #define FPC_RM_MASK             0x00000003
-#define FPC_VALID_MASK          0xF8F8FF03
 
 /* this typedef defines how a Program Status Word looks like */
 typedef struct 
diff --git a/arch/s390/include/uapi/asm/sigcontext.h b/arch/s390/include/uapi/asm/sigcontext.h
index 584787f6ce44..b30de9c01bbe 100644
--- a/arch/s390/include/uapi/asm/sigcontext.h
+++ b/arch/s390/include/uapi/asm/sigcontext.h
@@ -49,6 +49,7 @@ typedef struct
 typedef struct
 {
 	unsigned int fpc;
+	unsigned int pad;
 	double   fprs[__NUM_FPRS];
 } _s390_fp_regs;
 
diff --git a/arch/s390/kernel/compat_linux.h b/arch/s390/kernel/compat_linux.h
index 976518c0592a..1bfda3eca379 100644
--- a/arch/s390/kernel/compat_linux.h
+++ b/arch/s390/kernel/compat_linux.h
@@ -27,6 +27,7 @@ typedef union
 typedef struct
 {
 	unsigned int	fpc;
+	unsigned int	pad;
 	freg_t32	fprs[__NUM_FPRS];              
 } _s390_fp_regs32;
 
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index b7b60f5cc54b..ceeaaa6633a1 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -153,60 +153,61 @@ int copy_siginfo_from_user32(siginfo_t *to, compat_siginfo_t __user *from)
 
 static int save_sigregs32(struct pt_regs *regs, _sigregs32 __user *sregs)
 {
-	_s390_regs_common32 regs32;
-	int err, i;
+	_sigregs32 user_sregs;
+	int i;
 
-	regs32.psw.mask = psw32_user_bits |
+	user_sregs.regs.psw.mask = psw32_user_bits |
 		((__u32)(regs->psw.mask >> 32) & PSW32_MASK_USER);
-	regs32.psw.addr = (__u32) regs->psw.addr |
+	user_sregs.regs.psw.addr = (__u32) regs->psw.addr |
 		(__u32)(regs->psw.mask & PSW_MASK_BA);
 	for (i = 0; i < NUM_GPRS; i++)
-		regs32.gprs[i] = (__u32) regs->gprs[i];
+		user_sregs.regs.gprs[i] = (__u32) regs->gprs[i];
 	save_access_regs(current->thread.acrs);
-	memcpy(regs32.acrs, current->thread.acrs, sizeof(regs32.acrs));
-	err = __copy_to_user(&sregs->regs, &regs32, sizeof(regs32));
-	if (err)
-		return -EFAULT;
-	save_fp_regs(&current->thread.fp_regs);
-	/* s390_fp_regs and _s390_fp_regs32 are the same ! */
-	err = __copy_to_user(&sregs->fpregs, &current->thread.fp_regs,
-			     sizeof(_s390_fp_regs32));
-	if (err)
+	memcpy(&user_sregs.regs.acrs, current->thread.acrs,
+	       sizeof(user_sregs.regs.acrs));
+	save_fp_ctl(&current->thread.fp_regs.fpc);
+	save_fp_regs(current->thread.fp_regs.fprs);
+	memcpy(&user_sregs.fpregs, &current->thread.fp_regs,
+	       sizeof(user_sregs.fpregs));
+	if (__copy_to_user(sregs, &user_sregs, sizeof(_sigregs32)))
 		return -EFAULT;
 	return 0;
 }
 
 static int restore_sigregs32(struct pt_regs *regs,_sigregs32 __user *sregs)
 {
-	_s390_regs_common32 regs32;
-	int err, i;
+	_sigregs32 user_sregs;
+	int i;
 
 	/* Alwys make any pending restarted system call return -EINTR */
 	current_thread_info()->restart_block.fn = do_no_restart_syscall;
 
-	err = __copy_from_user(&regs32, &sregs->regs, sizeof(regs32));
-	if (err)
+	if (__copy_from_user(&user_sregs, &sregs->regs, sizeof(user_sregs)))
 		return -EFAULT;
+
+	/* Loading the floating-point-control word can fail. Do that first. */
+	if (restore_fp_ctl(&user_sregs.fpregs.fpc))
+		return -EINVAL;
+
+	/* Use regs->psw.mask instead of PSW_USER_BITS to preserve PER bit. */
 	regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
-		(__u64)(regs32.psw.mask & PSW32_MASK_USER) << 32 |
-		(__u64)(regs32.psw.addr & PSW32_ADDR_AMODE);
+		(__u64)(user_sregs.regs.psw.mask & PSW32_MASK_USER) << 32 |
+		(__u64)(user_sregs.regs.psw.addr & PSW32_ADDR_AMODE);
 	/* Check for invalid user address space control. */
 	if ((regs->psw.mask & PSW_MASK_ASC) == PSW_ASC_HOME)
 		regs->psw.mask = PSW_ASC_PRIMARY |
 			(regs->psw.mask & ~PSW_MASK_ASC);
-	regs->psw.addr = (__u64)(regs32.psw.addr & PSW32_ADDR_INSN);
+	regs->psw.addr = (__u64)(user_sregs.regs.psw.addr & PSW32_ADDR_INSN);
 	for (i = 0; i < NUM_GPRS; i++)
-		regs->gprs[i] = (__u64) regs32.gprs[i];
-	memcpy(current->thread.acrs, regs32.acrs, sizeof(current->thread.acrs));
+		regs->gprs[i] = (__u64) user_sregs.regs.gprs[i];
+	memcpy(&current->thread.acrs, &user_sregs.regs.acrs,
+	       sizeof(current->thread.acrs));
 	restore_access_regs(current->thread.acrs);
 
-	err = __copy_from_user(&current->thread.fp_regs, &sregs->fpregs,
-			       sizeof(_s390_fp_regs32));
-	current->thread.fp_regs.fpc &= FPC_VALID_MASK;
-	if (err)
-		return -EFAULT;
+	memcpy(&current->thread.fp_regs, &user_sregs.fpregs,
+	       sizeof(current->thread.fp_regs));
 
-	restore_fp_regs(&current->thread.fp_regs);
+	restore_fp_regs(current->thread.fp_regs.fprs);
 	clear_thread_flag(TIF_SYSCALL);	/* No longer in a system call */
 	return 0;
 }
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c
index e1cdd31acabb..7ed0d4e2a435 100644
--- a/arch/s390/kernel/process.c
+++ b/arch/s390/kernel/process.c
@@ -165,7 +165,8 @@ int copy_thread(unsigned long clone_flags, unsigned long new_stackp,
 	 * save fprs to current->thread.fp_regs to merge them with
 	 * the emulated registers and then copy the result to the child.
 	 */
-	save_fp_regs(&current->thread.fp_regs);
+	save_fp_ctl(&current->thread.fp_regs.fpc);
+	save_fp_regs(current->thread.fp_regs.fprs);
 	memcpy(&p->thread.fp_regs, &current->thread.fp_regs,
 	       sizeof(s390_fp_regs));
 	/* Set a new TLS ?  */
@@ -173,7 +174,9 @@ int copy_thread(unsigned long clone_flags, unsigned long new_stackp,
 		p->thread.acrs[0] = frame->childregs.gprs[6];
 #else /* CONFIG_64BIT */
 	/* Save the fpu registers to new thread structure. */
-	save_fp_regs(&p->thread.fp_regs);
+	save_fp_ctl(&p->thread.fp_regs.fpc);
+	save_fp_regs(p->thread.fp_regs.fprs);
+	p->thread.fp_regs.pad = 0;
 	/* Set a new TLS ?  */
 	if (clone_flags & CLONE_SETTLS) {
 		unsigned long tls = frame->childregs.gprs[6];
@@ -205,10 +208,12 @@ int dump_fpu (struct pt_regs * regs, s390_fp_regs *fpregs)
 	 * save fprs to current->thread.fp_regs to merge them with
 	 * the emulated registers and then copy the result to the dump.
 	 */
-	save_fp_regs(&current->thread.fp_regs);
+	save_fp_ctl(&current->thread.fp_regs.fpc);
+	save_fp_regs(current->thread.fp_regs.fprs);
 	memcpy(fpregs, &current->thread.fp_regs, sizeof(s390_fp_regs));
 #else /* CONFIG_64BIT */
-	save_fp_regs(fpregs);
+	save_fp_ctl(&fpregs->fpc);
+	save_fp_regs(fpregs->fprs);
 #endif /* CONFIG_64BIT */
 	return 1;
 }
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index e6abd5bd31b0..67db29efae32 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -239,8 +239,7 @@ static unsigned long __peek_user(struct task_struct *child, addr_t addr)
 		offset = addr - (addr_t) &dummy->regs.fp_regs;
 		tmp = *(addr_t *)((addr_t) &child->thread.fp_regs + offset);
 		if (addr == (addr_t) &dummy->regs.fp_regs.fpc)
-			tmp &= (unsigned long) FPC_VALID_MASK
-				<< (BITS_PER_LONG - 32);
+			tmp <<= BITS_PER_LONG - 32;
 
 	} else if (addr < (addr_t) (&dummy->regs.per_info + 1)) {
 		/*
@@ -363,10 +362,10 @@ static int __poke_user(struct task_struct *child, addr_t addr, addr_t data)
 		/*
 		 * floating point regs. are stored in the thread structure
 		 */
-		if (addr == (addr_t) &dummy->regs.fp_regs.fpc &&
-		    (data & ~((unsigned long) FPC_VALID_MASK
-			      << (BITS_PER_LONG - 32))) != 0)
-			return -EINVAL;
+		if (addr == (addr_t) &dummy->regs.fp_regs.fpc)
+			if ((unsigned int) data != 0 ||
+			    test_fp_ctl(data >> (BITS_PER_LONG - 32)))
+				return -EINVAL;
 		offset = addr - (addr_t) &dummy->regs.fp_regs;
 		*(addr_t *)((addr_t) &child->thread.fp_regs + offset) = data;
 
@@ -696,8 +695,7 @@ static int __poke_user_compat(struct task_struct *child,
 		 * floating point regs. are stored in the thread structure 
 		 */
 		if (addr == (addr_t) &dummy32->regs.fp_regs.fpc &&
-		    (tmp & ~FPC_VALID_MASK) != 0)
-			/* Invalid floating point control. */
+		    test_fp_ctl(tmp))
 			return -EINVAL;
 	        offset = addr - (addr_t) &dummy32->regs.fp_regs;
 		*(__u32 *)((addr_t) &child->thread.fp_regs + offset) = tmp;
@@ -895,8 +893,10 @@ static int s390_fpregs_get(struct task_struct *target,
 			   const struct user_regset *regset, unsigned int pos,
 			   unsigned int count, void *kbuf, void __user *ubuf)
 {
-	if (target == current)
-		save_fp_regs(&target->thread.fp_regs);
+	if (target == current) {
+		save_fp_ctl(&target->thread.fp_regs.fpc);
+		save_fp_regs(target->thread.fp_regs.fprs);
+	}
 
 	return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
 				   &target->thread.fp_regs, 0, -1);
@@ -909,19 +909,21 @@ static int s390_fpregs_set(struct task_struct *target,
 {
 	int rc = 0;
 
-	if (target == current)
-		save_fp_regs(&target->thread.fp_regs);
+	if (target == current) {
+		save_fp_ctl(&target->thread.fp_regs.fpc);
+		save_fp_regs(target->thread.fp_regs.fprs);
+	}
 
 	/* If setting FPC, must validate it first. */
 	if (count > 0 && pos < offsetof(s390_fp_regs, fprs)) {
-		u32 fpc[2] = { target->thread.fp_regs.fpc, 0 };
-		rc = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &fpc,
+		u32 ufpc[2] = { target->thread.fp_regs.fpc, 0 };
+		rc = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &ufpc,
 					0, offsetof(s390_fp_regs, fprs));
 		if (rc)
 			return rc;
-		if ((fpc[0] & ~FPC_VALID_MASK) != 0 || fpc[1] != 0)
+		if (ufpc[1] != 0 || test_fp_ctl(ufpc[0]))
 			return -EINVAL;
-		target->thread.fp_regs.fpc = fpc[0];
+		target->thread.fp_regs.fpc = ufpc[0];
 	}
 
 	if (rc == 0 && count > 0)
@@ -929,8 +931,10 @@ static int s390_fpregs_set(struct task_struct *target,
 					target->thread.fp_regs.fprs,
 					offsetof(s390_fp_regs, fprs), -1);
 
-	if (rc == 0 && target == current)
-		restore_fp_regs(&target->thread.fp_regs);
+	if (rc == 0 && target == current) {
+		restore_fp_ctl(&target->thread.fp_regs.fpc);
+		restore_fp_regs(target->thread.fp_regs.fprs);
+	}
 
 	return rc;
 }
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index 5c0ce019a8ae..4c28c39e3718 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -62,14 +62,15 @@ static int save_sigregs(struct pt_regs *regs, _sigregs __user *sregs)
 	user_sregs.regs.psw.addr = regs->psw.addr;
 	memcpy(&user_sregs.regs.gprs, &regs->gprs, sizeof(sregs->regs.gprs));
 	memcpy(&user_sregs.regs.acrs, current->thread.acrs,
-	       sizeof(sregs->regs.acrs));
+	       sizeof(user_sregs.regs.acrs));
 	/* 
 	 * We have to store the fp registers to current->thread.fp_regs
 	 * to merge them with the emulated registers.
 	 */
-	save_fp_regs(&current->thread.fp_regs);
+	save_fp_ctl(&current->thread.fp_regs.fpc);
+	save_fp_regs(current->thread.fp_regs.fprs);
 	memcpy(&user_sregs.fpregs, &current->thread.fp_regs,
-	       sizeof(s390_fp_regs));
+	       sizeof(user_sregs.fpregs));
 	if (__copy_to_user(sregs, &user_sregs, sizeof(_sigregs)))
 		return -EFAULT;
 	return 0;
@@ -82,8 +83,13 @@ static int restore_sigregs(struct pt_regs *regs, _sigregs __user *sregs)
 	/* Alwys make any pending restarted system call return -EINTR */
 	current_thread_info()->restart_block.fn = do_no_restart_syscall;
 
-	if (__copy_from_user(&user_sregs, sregs, sizeof(_sigregs)))
+	if (__copy_from_user(&user_sregs, sregs, sizeof(user_sregs)))
 		return -EFAULT;
+
+	/* Loading the floating-point-control word can fail. Do that first. */
+	if (restore_fp_ctl(&user_sregs.fpregs.fpc))
+		return -EINVAL;
+
 	/* Use regs->psw.mask instead of PSW_USER_BITS to preserve PER bit. */
 	regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
 		(user_sregs.regs.psw.mask & PSW_MASK_USER);
@@ -97,14 +103,13 @@ static int restore_sigregs(struct pt_regs *regs, _sigregs __user *sregs)
 	regs->psw.addr = user_sregs.regs.psw.addr;
 	memcpy(&regs->gprs, &user_sregs.regs.gprs, sizeof(sregs->regs.gprs));
 	memcpy(&current->thread.acrs, &user_sregs.regs.acrs,
-	       sizeof(sregs->regs.acrs));
+	       sizeof(current->thread.acrs));
 	restore_access_regs(current->thread.acrs);
 
 	memcpy(&current->thread.fp_regs, &user_sregs.fpregs,
-	       sizeof(s390_fp_regs));
-	current->thread.fp_regs.fpc &= FPC_VALID_MASK;
+	       sizeof(current->thread.fp_regs));
 
-	restore_fp_regs(&current->thread.fp_regs);
+	restore_fp_regs(current->thread.fp_regs.fprs);
 	clear_thread_flag(TIF_SYSCALL);	/* No longer in a system call */
 	return 0;
 }
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 776dafe918db..ed8064cb5c49 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -343,10 +343,11 @@ void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
 
 void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
 {
-	save_fp_regs(&vcpu->arch.host_fpregs);
+	save_fp_ctl(&vcpu->arch.host_fpregs.fpc);
+	save_fp_regs(vcpu->arch.host_fpregs.fprs);
 	save_access_regs(vcpu->arch.host_acrs);
-	vcpu->arch.guest_fpregs.fpc &= FPC_VALID_MASK;
-	restore_fp_regs(&vcpu->arch.guest_fpregs);
+	restore_fp_ctl(&vcpu->arch.guest_fpregs.fpc);
+	restore_fp_regs(vcpu->arch.guest_fpregs.fprs);
 	restore_access_regs(vcpu->run->s.regs.acrs);
 	gmap_enable(vcpu->arch.gmap);
 	atomic_set_mask(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags);
@@ -356,9 +357,11 @@ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
 {
 	atomic_clear_mask(CPUSTAT_RUNNING, &vcpu->arch.sie_block->cpuflags);
 	gmap_disable(vcpu->arch.gmap);
-	save_fp_regs(&vcpu->arch.guest_fpregs);
+	save_fp_ctl(&vcpu->arch.guest_fpregs.fpc);
+	save_fp_regs(vcpu->arch.guest_fpregs.fprs);
 	save_access_regs(vcpu->run->s.regs.acrs);
-	restore_fp_regs(&vcpu->arch.host_fpregs);
+	restore_fp_ctl(&vcpu->arch.host_fpregs.fpc);
+	restore_fp_regs(vcpu->arch.host_fpregs.fprs);
 	restore_access_regs(vcpu->arch.host_acrs);
 }
 
@@ -618,9 +621,12 @@ int kvm_arch_vcpu_ioctl_get_sregs(struct kvm_vcpu *vcpu,
 
 int kvm_arch_vcpu_ioctl_set_fpu(struct kvm_vcpu *vcpu, struct kvm_fpu *fpu)
 {
+	if (test_fp_ctl(fpu->fpc))
+		return -EINVAL;
 	memcpy(&vcpu->arch.guest_fpregs.fprs, &fpu->fprs, sizeof(fpu->fprs));
-	vcpu->arch.guest_fpregs.fpc = fpu->fpc & FPC_VALID_MASK;
-	restore_fp_regs(&vcpu->arch.guest_fpregs);
+	vcpu->arch.guest_fpregs.fpc = fpu->fpc;
+	restore_fp_ctl(&vcpu->arch.guest_fpregs.fpc);
+	restore_fp_regs(vcpu->arch.guest_fpregs.fprs);
 	return 0;
 }
 
@@ -876,7 +882,8 @@ int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr)
 	 * copying in vcpu load/put. Lets update our copies before we save
 	 * it into the save area
 	 */
-	save_fp_regs(&vcpu->arch.guest_fpregs);
+	save_fp_ctl(&vcpu->arch.guest_fpregs.fpc);
+	save_fp_regs(vcpu->arch.guest_fpregs.fprs);
 	save_access_regs(vcpu->run->s.regs.acrs);
 
 	if (__guestcopy(vcpu, addr + offsetof(struct save_area, fp_regs),
diff --git a/arch/s390/math-emu/math.c b/arch/s390/math-emu/math.c
index 58bff541fde9..a6ba0d724335 100644
--- a/arch/s390/math-emu/math.c
+++ b/arch/s390/math-emu/math.c
@@ -19,6 +19,8 @@
 #include <math-emu/double.h>
 #include <math-emu/quad.h>
 
+#define FPC_VALID_MASK		0xF8F8FF03
+
 /*
  * I miss a macro to round a floating point number to the
  * nearest integer in the same floating point format.
-- 
cgit 


From 5ebf250dabbae83ad875f0dda5a108503cf78f3b Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Wed, 16 Oct 2013 09:58:01 +0200
Subject: s390: fix handling of runtime instrumentation psw bit

Fix the following bugs:
- When returning from a signal the signal handler copies the saved psw mask
  from user space and uses parts of it. Especially it restores the RI bit
  unconditionally. If however the machine doesn't support RI, or RI is
  disabled for the task, the last lpswe instruction which returns to user
  space will generate a specification exception.
  To fix this check if the RI bit is allowed to be set and kill the task
  if not.
- In the compat mode signal handler code the RI bit of the psw mask gets
  propagated to the mask of the return psw: if user space enables RI in the
  signal handler, RI will also be enabled after the signal handler is
  finished.
  This is a different behaviour than with 64 bit tasks. So change this to
  match the 64 bit semantics, which restores the original RI bit value.
- Fix similar oddities within the ptrace code as well.

Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/compat.h      |  1 +
 arch/s390/include/asm/processor.h   |  3 +++
 arch/s390/include/uapi/asm/ptrace.h |  2 +-
 arch/s390/kernel/compat_signal.c    |  9 +++++++--
 arch/s390/kernel/ptrace.c           | 30 ++++++++++++++++++++----------
 arch/s390/kernel/signal.c           |  7 +++++--
 6 files changed, 37 insertions(+), 15 deletions(-)

diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index c1e7c646727c..7604cabf02c0 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -22,6 +22,7 @@
 #define PSW32_MASK_ASC		0x0000C000UL
 #define PSW32_MASK_CC		0x00003000UL
 #define PSW32_MASK_PM		0x00000f00UL
+#define PSW32_MASK_RI		0x00000080UL
 
 #define PSW32_MASK_USER		0x0000FF00UL
 
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index 3caaf6548ef5..a56e63483e0f 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -175,6 +175,9 @@ unsigned long get_wchan(struct task_struct *p);
 #define KSTK_EIP(tsk)	(task_pt_regs(tsk)->psw.addr)
 #define KSTK_ESP(tsk)	(task_pt_regs(tsk)->gprs[15])
 
+/* Has task runtime instrumentation enabled ? */
+#define is_ri_task(tsk) (!!(tsk)->thread.ri_cb)
+
 static inline unsigned short stap(void)
 {
 	unsigned short cpu_address;
diff --git a/arch/s390/include/uapi/asm/ptrace.h b/arch/s390/include/uapi/asm/ptrace.h
index 1d2f47548e1d..7e0b498a2c2b 100644
--- a/arch/s390/include/uapi/asm/ptrace.h
+++ b/arch/s390/include/uapi/asm/ptrace.h
@@ -263,7 +263,7 @@ typedef struct
 #define PSW_MASK_EA		0x0000000100000000UL
 #define PSW_MASK_BA		0x0000000080000000UL
 
-#define PSW_MASK_USER		0x0000FF8180000000UL
+#define PSW_MASK_USER		0x0000FF0180000000UL
 
 #define PSW_ADDR_AMODE		0x0000000000000000UL
 #define PSW_ADDR_INSN		0xFFFFFFFFFFFFFFFFUL
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index ceeaaa6633a1..8764c88a84fe 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -156,8 +156,9 @@ static int save_sigregs32(struct pt_regs *regs, _sigregs32 __user *sregs)
 	_sigregs32 user_sregs;
 	int i;
 
-	user_sregs.regs.psw.mask = psw32_user_bits |
-		((__u32)(regs->psw.mask >> 32) & PSW32_MASK_USER);
+	user_sregs.regs.psw.mask = (__u32)(regs->psw.mask >> 32);
+	user_sregs.regs.psw.mask &= PSW32_MASK_USER | PSW32_MASK_RI;
+	user_sregs.regs.psw.mask |= psw32_user_bits;
 	user_sregs.regs.psw.addr = (__u32) regs->psw.addr |
 		(__u32)(regs->psw.mask & PSW_MASK_BA);
 	for (i = 0; i < NUM_GPRS; i++)
@@ -185,6 +186,9 @@ static int restore_sigregs32(struct pt_regs *regs,_sigregs32 __user *sregs)
 	if (__copy_from_user(&user_sregs, &sregs->regs, sizeof(user_sregs)))
 		return -EFAULT;
 
+	if (!is_ri_task(current) && (user_sregs.regs.psw.mask & PSW32_MASK_RI))
+		return -EINVAL;
+
 	/* Loading the floating-point-control word can fail. Do that first. */
 	if (restore_fp_ctl(&user_sregs.fpregs.fpc))
 		return -EINVAL;
@@ -192,6 +196,7 @@ static int restore_sigregs32(struct pt_regs *regs,_sigregs32 __user *sregs)
 	/* Use regs->psw.mask instead of PSW_USER_BITS to preserve PER bit. */
 	regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
 		(__u64)(user_sregs.regs.psw.mask & PSW32_MASK_USER) << 32 |
+		(__u64)(user_sregs.regs.psw.mask & PSW32_MASK_RI) << 32 |
 		(__u64)(user_sregs.regs.psw.addr & PSW32_ADDR_AMODE);
 	/* Check for invalid user address space control. */
 	if ((regs->psw.mask & PSW_MASK_ASC) == PSW_ASC_HOME)
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 67db29efae32..1d1f9c30c5fa 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -198,9 +198,11 @@ static unsigned long __peek_user(struct task_struct *child, addr_t addr)
 		 * psw and gprs are stored on the stack
 		 */
 		tmp = *(addr_t *)((addr_t) &task_pt_regs(child)->psw + addr);
-		if (addr == (addr_t) &dummy->regs.psw.mask)
+		if (addr == (addr_t) &dummy->regs.psw.mask) {
 			/* Return a clean psw mask. */
-			tmp = PSW_USER_BITS | (tmp & PSW_MASK_USER);
+			tmp &= PSW_MASK_USER | PSW_MASK_RI;
+			tmp |= PSW_USER_BITS;
+		}
 
 	} else if (addr < (addr_t) &dummy->regs.orig_gpr2) {
 		/*
@@ -320,11 +322,15 @@ static int __poke_user(struct task_struct *child, addr_t addr, addr_t data)
 		/*
 		 * psw and gprs are stored on the stack
 		 */
-		if (addr == (addr_t) &dummy->regs.psw.mask &&
-		    ((data & ~PSW_MASK_USER) != PSW_USER_BITS ||
-		     ((data & PSW_MASK_EA) && !(data & PSW_MASK_BA))))
-			/* Invalid psw mask. */
-			return -EINVAL;
+		if (addr == (addr_t) &dummy->regs.psw.mask) {
+			unsigned long mask = PSW_MASK_USER;
+
+			mask |= is_ri_task(child) ? PSW_MASK_RI : 0;
+			if ((data & ~mask) != PSW_USER_BITS)
+				return -EINVAL;
+			if ((data & PSW_MASK_EA) && !(data & PSW_MASK_BA))
+				return -EINVAL;
+		}
 		*(addr_t *)((addr_t) &task_pt_regs(child)->psw + addr) = data;
 
 	} else if (addr < (addr_t) (&dummy->regs.orig_gpr2)) {
@@ -556,7 +562,8 @@ static u32 __peek_user_compat(struct task_struct *child, addr_t addr)
 		if (addr == (addr_t) &dummy32->regs.psw.mask) {
 			/* Fake a 31 bit psw mask. */
 			tmp = (__u32)(regs->psw.mask >> 32);
-			tmp = psw32_user_bits | (tmp & PSW32_MASK_USER);
+			tmp &= PSW32_MASK_USER | PSW32_MASK_RI;
+			tmp |= psw32_user_bits;
 		} else if (addr == (addr_t) &dummy32->regs.psw.addr) {
 			/* Fake a 31 bit psw address. */
 			tmp = (__u32) regs->psw.addr |
@@ -653,13 +660,16 @@ static int __poke_user_compat(struct task_struct *child,
 		 * psw, gprs, acrs and orig_gpr2 are stored on the stack
 		 */
 		if (addr == (addr_t) &dummy32->regs.psw.mask) {
+			__u32 mask = PSW32_MASK_USER;
+
+			mask |= is_ri_task(child) ? PSW32_MASK_RI : 0;
 			/* Build a 64 bit psw mask from 31 bit mask. */
-			if ((tmp & ~PSW32_MASK_USER) != psw32_user_bits)
+			if ((tmp & ~mask) != psw32_user_bits)
 				/* Invalid psw mask. */
 				return -EINVAL;
 			regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
 				(regs->psw.mask & PSW_MASK_BA) |
-				(__u64)(tmp & PSW32_MASK_USER) << 32;
+				(__u64)(tmp & mask) << 32;
 		} else if (addr == (addr_t) &dummy32->regs.psw.addr) {
 			/* Build a 64 bit psw address from 31 bit address. */
 			regs->psw.addr = (__u64) tmp & PSW32_ADDR_INSN;
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index 4c28c39e3718..fb535874a246 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -58,7 +58,7 @@ static int save_sigregs(struct pt_regs *regs, _sigregs __user *sregs)
 	/* Copy a 'clean' PSW mask to the user to avoid leaking
 	   information about whether PER is currently on.  */
 	user_sregs.regs.psw.mask = PSW_USER_BITS |
-		(regs->psw.mask & PSW_MASK_USER);
+		(regs->psw.mask & (PSW_MASK_USER | PSW_MASK_RI));
 	user_sregs.regs.psw.addr = regs->psw.addr;
 	memcpy(&user_sregs.regs.gprs, &regs->gprs, sizeof(sregs->regs.gprs));
 	memcpy(&user_sregs.regs.acrs, current->thread.acrs,
@@ -86,13 +86,16 @@ static int restore_sigregs(struct pt_regs *regs, _sigregs __user *sregs)
 	if (__copy_from_user(&user_sregs, sregs, sizeof(user_sregs)))
 		return -EFAULT;
 
+	if (!is_ri_task(current) && (user_sregs.regs.psw.mask & PSW_MASK_RI))
+		return -EINVAL;
+
 	/* Loading the floating-point-control word can fail. Do that first. */
 	if (restore_fp_ctl(&user_sregs.fpregs.fpc))
 		return -EINVAL;
 
 	/* Use regs->psw.mask instead of PSW_USER_BITS to preserve PER bit. */
 	regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
-		(user_sregs.regs.psw.mask & PSW_MASK_USER);
+		(user_sregs.regs.psw.mask & (PSW_MASK_USER | PSW_MASK_RI));
 	/* Check for invalid user address space control. */
 	if ((regs->psw.mask & PSW_MASK_ASC) == PSW_ASC_HOME)
 		regs->psw.mask = PSW_ASC_PRIMARY |
-- 
cgit 


From f26946d7ecad0afdd85e6ae56663d0fe26676b34 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Wed, 16 Oct 2013 14:17:29 +0200
Subject: s390/compat: make psw32_user_bits a constant value again

Make psw32_user_bits a constant value again.
This is a leftover of the code which allowed to run the kernel either
in primary or home space which got removed with 9a905662 "s390/uaccess:
always run the kernel in home space".

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/compat.h   | 4 +++-
 arch/s390/kernel/compat_linux.c  | 4 ----
 arch/s390/kernel/compat_signal.c | 2 +-
 arch/s390/kernel/ptrace.c        | 4 ++--
 4 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/arch/s390/include/asm/compat.h b/arch/s390/include/asm/compat.h
index 7604cabf02c0..4bf9da03591e 100644
--- a/arch/s390/include/asm/compat.h
+++ b/arch/s390/include/asm/compat.h
@@ -36,7 +36,9 @@
 #define PSW32_ASC_SECONDARY	0x00008000UL
 #define PSW32_ASC_HOME		0x0000C000UL
 
-extern u32 psw32_user_bits;
+#define PSW32_USER_BITS (PSW32_MASK_DAT | PSW32_MASK_IO | PSW32_MASK_EXT | \
+			 PSW32_DEFAULT_KEY | PSW32_MASK_BASE | \
+			 PSW32_MASK_MCHECK | PSW32_MASK_PSTATE | PSW32_ASC_HOME)
 
 #define COMPAT_USER_HZ		100
 #define COMPAT_UTS_MACHINE	"s390\0\0\0\0"
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 1f1b8c70ab97..e030d2bdec1b 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -58,10 +58,6 @@
 
 #include "compat_linux.h"
 
-u32 psw32_user_bits = PSW32_MASK_DAT | PSW32_MASK_IO | PSW32_MASK_EXT |
-		      PSW32_DEFAULT_KEY | PSW32_MASK_BASE | PSW32_MASK_MCHECK |
-		      PSW32_MASK_PSTATE | PSW32_ASC_HOME;
- 
 /* For this source file, we want overflow handling. */
 
 #undef high2lowuid
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index 8764c88a84fe..5a3ab5c191fd 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -158,7 +158,7 @@ static int save_sigregs32(struct pt_regs *regs, _sigregs32 __user *sregs)
 
 	user_sregs.regs.psw.mask = (__u32)(regs->psw.mask >> 32);
 	user_sregs.regs.psw.mask &= PSW32_MASK_USER | PSW32_MASK_RI;
-	user_sregs.regs.psw.mask |= psw32_user_bits;
+	user_sregs.regs.psw.mask |= PSW32_USER_BITS;
 	user_sregs.regs.psw.addr = (__u32) regs->psw.addr |
 		(__u32)(regs->psw.mask & PSW_MASK_BA);
 	for (i = 0; i < NUM_GPRS; i++)
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 1d1f9c30c5fa..e65c91c591e8 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -563,7 +563,7 @@ static u32 __peek_user_compat(struct task_struct *child, addr_t addr)
 			/* Fake a 31 bit psw mask. */
 			tmp = (__u32)(regs->psw.mask >> 32);
 			tmp &= PSW32_MASK_USER | PSW32_MASK_RI;
-			tmp |= psw32_user_bits;
+			tmp |= PSW32_USER_BITS;
 		} else if (addr == (addr_t) &dummy32->regs.psw.addr) {
 			/* Fake a 31 bit psw address. */
 			tmp = (__u32) regs->psw.addr |
@@ -664,7 +664,7 @@ static int __poke_user_compat(struct task_struct *child,
 
 			mask |= is_ri_task(child) ? PSW32_MASK_RI : 0;
 			/* Build a 64 bit psw mask from 31 bit mask. */
-			if ((tmp & ~mask) != psw32_user_bits)
+			if ((tmp & ~mask) != PSW32_USER_BITS)
 				/* Invalid psw mask. */
 				return -EINVAL;
 			regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
-- 
cgit 


From 0702fbf572ac5e513873628bf534da4a8a2025b4 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 21 Oct 2013 07:44:08 +0200
Subject: s390/percpu: use generic percpu ops for CONFIG_32BIT

Remove the special cases for the this_cpu_* functions for 32 bit
in order to make it easier to add additional code for 64 bit.
32 bit will use the generic implementation.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/percpu.h | 26 +++++++-------------------
 1 file changed, 7 insertions(+), 19 deletions(-)

diff --git a/arch/s390/include/asm/percpu.h b/arch/s390/include/asm/percpu.h
index 86fe0ee2cee5..41baca870d0c 100644
--- a/arch/s390/include/asm/percpu.h
+++ b/arch/s390/include/asm/percpu.h
@@ -10,12 +10,14 @@
  */
 #define __my_cpu_offset S390_lowcore.percpu_offset
 
+#ifdef CONFIG_64BIT
+
 /*
  * For 64 bit module code, the module may be more than 4G above the
  * per cpu area, use weak definitions to force the compiler to
  * generate external references.
  */
-#if defined(CONFIG_SMP) && defined(CONFIG_64BIT) && defined(MODULE)
+#if defined(CONFIG_SMP) && defined(MODULE)
 #define ARCH_NEEDS_WEAK_PER_CPU
 #endif
 
@@ -30,13 +32,7 @@
 	do {								\
 		old__ = prev__;						\
 		new__ = old__ op (val);					\
-		switch (sizeof(*ptr__)) {				\
-		case 8:							\
-			prev__ = cmpxchg64(ptr__, old__, new__);	\
-			break;						\
-		default:						\
-			prev__ = cmpxchg(ptr__, old__, new__);		\
-		}							\
+		prev__ = cmpxchg(ptr__, old__, new__);			\
 	} while (prev__ != old__);					\
 	preempt_enable();						\
 	new__;								\
@@ -74,13 +70,7 @@
 	pcp_op_T__ *ptr__;						\
 	preempt_disable();						\
 	ptr__ = __this_cpu_ptr(&(pcp));					\
-	switch (sizeof(*ptr__)) {					\
-	case 8:								\
-		ret__ = cmpxchg64(ptr__, oval, nval);			\
-		break;							\
-	default:							\
-		ret__ = cmpxchg(ptr__, oval, nval);			\
-	}								\
+	ret__ = cmpxchg(ptr__, oval, nval);				\
 	preempt_enable();						\
 	ret__;								\
 })
@@ -104,9 +94,7 @@
 #define this_cpu_xchg_1(pcp, nval) arch_this_cpu_xchg(pcp, nval)
 #define this_cpu_xchg_2(pcp, nval) arch_this_cpu_xchg(pcp, nval)
 #define this_cpu_xchg_4(pcp, nval) arch_this_cpu_xchg(pcp, nval)
-#ifdef CONFIG_64BIT
 #define this_cpu_xchg_8(pcp, nval) arch_this_cpu_xchg(pcp, nval)
-#endif
 
 #define arch_this_cpu_cmpxchg_double(pcp1, pcp2, o1, o2, n1, n2)	\
 ({									\
@@ -124,9 +112,9 @@
 })
 
 #define this_cpu_cmpxchg_double_4 arch_this_cpu_cmpxchg_double
-#ifdef CONFIG_64BIT
 #define this_cpu_cmpxchg_double_8 arch_this_cpu_cmpxchg_double
-#endif
+
+#endif /* CONFIG_64BIT */
 
 #include <asm-generic/percpu.h>
 
-- 
cgit 


From f84cd97e5c61fe3ce66af838dd955dee02076639 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 21 Oct 2013 07:57:41 +0200
Subject: s390/percpu: make use of interlocked-access facility 1 instructions

Optimize this_cpu_* functions for 64 bit by making use of new instructions
that came with the interlocked-access facility 1 (load-and-*) and the
general-instructions-extension facility (asi, agsi).
That way we get rid of the compare-and-swap loop in most cases.
Code size reduction (defconfig, -march=z196): 11,555 bytes.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/percpu.h | 125 ++++++++++++++++++++++++++++++++---------
 1 file changed, 100 insertions(+), 25 deletions(-)

diff --git a/arch/s390/include/asm/percpu.h b/arch/s390/include/asm/percpu.h
index 41baca870d0c..061ab45faf70 100644
--- a/arch/s390/include/asm/percpu.h
+++ b/arch/s390/include/asm/percpu.h
@@ -21,7 +21,11 @@
 #define ARCH_NEEDS_WEAK_PER_CPU
 #endif
 
-#define arch_this_cpu_to_op(pcp, val, op)				\
+/*
+ * We use a compare-and-swap loop since that uses less cpu cycles than
+ * disabling and enabling interrupts like the generic variant would do.
+ */
+#define arch_this_cpu_to_op_simple(pcp, val, op)			\
 ({									\
 	typedef typeof(pcp) pcp_op_T__;					\
 	pcp_op_T__ old__, new__, prev__;				\
@@ -38,30 +42,101 @@
 	new__;								\
 })
 
-#define this_cpu_add_1(pcp, val) arch_this_cpu_to_op(pcp, val, +)
-#define this_cpu_add_2(pcp, val) arch_this_cpu_to_op(pcp, val, +)
-#define this_cpu_add_4(pcp, val) arch_this_cpu_to_op(pcp, val, +)
-#define this_cpu_add_8(pcp, val) arch_this_cpu_to_op(pcp, val, +)
-
-#define this_cpu_add_return_1(pcp, val) arch_this_cpu_to_op(pcp, val, +)
-#define this_cpu_add_return_2(pcp, val) arch_this_cpu_to_op(pcp, val, +)
-#define this_cpu_add_return_4(pcp, val) arch_this_cpu_to_op(pcp, val, +)
-#define this_cpu_add_return_8(pcp, val) arch_this_cpu_to_op(pcp, val, +)
-
-#define this_cpu_and_1(pcp, val) arch_this_cpu_to_op(pcp, val, &)
-#define this_cpu_and_2(pcp, val) arch_this_cpu_to_op(pcp, val, &)
-#define this_cpu_and_4(pcp, val) arch_this_cpu_to_op(pcp, val, &)
-#define this_cpu_and_8(pcp, val) arch_this_cpu_to_op(pcp, val, &)
-
-#define this_cpu_or_1(pcp, val) arch_this_cpu_to_op(pcp, val, |)
-#define this_cpu_or_2(pcp, val) arch_this_cpu_to_op(pcp, val, |)
-#define this_cpu_or_4(pcp, val) arch_this_cpu_to_op(pcp, val, |)
-#define this_cpu_or_8(pcp, val) arch_this_cpu_to_op(pcp, val, |)
-
-#define this_cpu_xor_1(pcp, val) arch_this_cpu_to_op(pcp, val, ^)
-#define this_cpu_xor_2(pcp, val) arch_this_cpu_to_op(pcp, val, ^)
-#define this_cpu_xor_4(pcp, val) arch_this_cpu_to_op(pcp, val, ^)
-#define this_cpu_xor_8(pcp, val) arch_this_cpu_to_op(pcp, val, ^)
+#define this_cpu_add_1(pcp, val)	arch_this_cpu_to_op_simple(pcp, val, +)
+#define this_cpu_add_2(pcp, val)	arch_this_cpu_to_op_simple(pcp, val, +)
+#define this_cpu_add_return_1(pcp, val) arch_this_cpu_to_op_simple(pcp, val, +)
+#define this_cpu_add_return_2(pcp, val) arch_this_cpu_to_op_simple(pcp, val, +)
+#define this_cpu_and_1(pcp, val)	arch_this_cpu_to_op_simple(pcp, val, &)
+#define this_cpu_and_2(pcp, val)	arch_this_cpu_to_op_simple(pcp, val, &)
+#define this_cpu_or_1(pcp, val)		arch_this_cpu_to_op_simple(pcp, val, |)
+#define this_cpu_or_2(pcp, val)		arch_this_cpu_to_op_simple(pcp, val, |)
+#define this_cpu_xor_1(pcp, val)	arch_this_cpu_to_op_simple(pcp, val, ^)
+#define this_cpu_xor_2(pcp, val)	arch_this_cpu_to_op_simple(pcp, val, ^)
+
+#ifndef CONFIG_HAVE_MARCH_Z196_FEATURES
+
+#define this_cpu_add_4(pcp, val)	arch_this_cpu_to_op_simple(pcp, val, +)
+#define this_cpu_add_8(pcp, val)	arch_this_cpu_to_op_simple(pcp, val, +)
+#define this_cpu_add_return_4(pcp, val) arch_this_cpu_to_op_simple(pcp, val, +)
+#define this_cpu_add_return_8(pcp, val) arch_this_cpu_to_op_simple(pcp, val, +)
+#define this_cpu_and_4(pcp, val)	arch_this_cpu_to_op_simple(pcp, val, &)
+#define this_cpu_and_8(pcp, val)	arch_this_cpu_to_op_simple(pcp, val, &)
+#define this_cpu_or_4(pcp, val)		arch_this_cpu_to_op_simple(pcp, val, |)
+#define this_cpu_or_8(pcp, val)		arch_this_cpu_to_op_simple(pcp, val, |)
+#define this_cpu_xor_4(pcp, val)	arch_this_cpu_to_op_simple(pcp, val, ^)
+#define this_cpu_xor_8(pcp, val)	arch_this_cpu_to_op_simple(pcp, val, ^)
+
+#else /* CONFIG_HAVE_MARCH_Z196_FEATURES */
+
+#define arch_this_cpu_add(pcp, val, op1, op2, szcast)			\
+{									\
+	typedef typeof(pcp) pcp_op_T__; 				\
+	pcp_op_T__ val__ = (val);					\
+	pcp_op_T__ old__, *ptr__;					\
+	preempt_disable();						\
+	ptr__ = __this_cpu_ptr(&(pcp)); 				\
+	if (__builtin_constant_p(val__) &&				\
+	    ((szcast)val__ > -129) && ((szcast)val__ < 128)) {		\
+		asm volatile(						\
+			op2 "   %[ptr__],%[val__]\n"			\
+			: [ptr__] "+Q" (*ptr__) 			\
+			: [val__] "i" ((szcast)val__)			\
+			: "cc");					\
+	} else {							\
+		asm volatile(						\
+			op1 "   %[old__],%[val__],%[ptr__]\n"		\
+			: [old__] "=d" (old__), [ptr__] "+Q" (*ptr__)	\
+			: [val__] "d" (val__)				\
+			: "cc");					\
+	}								\
+	preempt_enable();						\
+}
+
+#define this_cpu_add_4(pcp, val) arch_this_cpu_add(pcp, val, "laa", "asi", int)
+#define this_cpu_add_8(pcp, val) arch_this_cpu_add(pcp, val, "laag", "agsi", long)
+
+#define arch_this_cpu_add_return(pcp, val, op)				\
+({									\
+	typedef typeof(pcp) pcp_op_T__; 				\
+	pcp_op_T__ val__ = (val);					\
+	pcp_op_T__ old__, *ptr__;					\
+	preempt_disable();						\
+	ptr__ = __this_cpu_ptr(&(pcp)); 				\
+	asm volatile(							\
+		op "    %[old__],%[val__],%[ptr__]\n"			\
+		: [old__] "=d" (old__), [ptr__] "+Q" (*ptr__)		\
+		: [val__] "d" (val__)					\
+		: "cc");						\
+	preempt_enable();						\
+	old__ + val__;							\
+})
+
+#define this_cpu_add_return_4(pcp, val) arch_this_cpu_add_return(pcp, val, "laa")
+#define this_cpu_add_return_8(pcp, val) arch_this_cpu_add_return(pcp, val, "laag")
+
+#define arch_this_cpu_to_op(pcp, val, op)				\
+{									\
+	typedef typeof(pcp) pcp_op_T__; 				\
+	pcp_op_T__ val__ = (val);					\
+	pcp_op_T__ old__, *ptr__;					\
+	preempt_disable();						\
+	ptr__ = __this_cpu_ptr(&(pcp)); 				\
+	asm volatile(							\
+		op "    %[old__],%[val__],%[ptr__]\n"			\
+		: [old__] "=d" (old__), [ptr__] "+Q" (*ptr__)		\
+		: [val__] "d" (val__)					\
+		: "cc");						\
+	preempt_enable();						\
+}
+
+#define this_cpu_and_4(pcp, val)	arch_this_cpu_to_op(pcp, val, "lan")
+#define this_cpu_and_8(pcp, val)	arch_this_cpu_to_op(pcp, val, "lang")
+#define this_cpu_or_4(pcp, val)		arch_this_cpu_to_op(pcp, val, "lao")
+#define this_cpu_or_8(pcp, val)		arch_this_cpu_to_op(pcp, val, "laog")
+#define this_cpu_xor_4(pcp, val)	arch_this_cpu_to_op(pcp, val, "lax")
+#define this_cpu_xor_8(pcp, val)	arch_this_cpu_to_op(pcp, val, "laxg")
+
+#endif /* CONFIG_HAVE_MARCH_Z196_FEATURES */
 
 #define arch_this_cpu_cmpxchg(pcp, oval, nval)				\
 ({									\
-- 
cgit 


From 3c284106ade65683df5fa16bee1a3467779101a5 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 21 Oct 2013 13:43:08 +0200
Subject: s390: add a couple of useful defconfigs

Add four more defconfigs which we maintained outside of
the kernel tree for no good reason.
Inside of the kernel tree they can be easily used:

make whatever_defconfig

"make help" shows the available defconfigs.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/configs/default_defconfig     | 655 ++++++++++++++++++++++++++++++++
 arch/s390/configs/gcov_defconfig        | 618 ++++++++++++++++++++++++++++++
 arch/s390/configs/performance_defconfig | 610 +++++++++++++++++++++++++++++
 arch/s390/configs/zfcpdump_defconfig    |  86 +++++
 4 files changed, 1969 insertions(+)
 create mode 100644 arch/s390/configs/default_defconfig
 create mode 100644 arch/s390/configs/gcov_defconfig
 create mode 100644 arch/s390/configs/performance_defconfig
 create mode 100644 arch/s390/configs/zfcpdump_defconfig

diff --git a/arch/s390/configs/default_defconfig b/arch/s390/configs/default_defconfig
new file mode 100644
index 000000000000..e0af2ee58751
--- /dev/null
+++ b/arch/s390/configs/default_defconfig
@@ -0,0 +1,655 @@
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_FHANDLE=y
+CONFIG_AUDIT=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_RCU_FAST_NO_HZ=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CPUSETS=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_RESOURCE_COUNTERS=y
+CONFIG_CGROUP_PERF=y
+CONFIG_CFS_BANDWIDTH=y
+CONFIG_RT_GROUP_SCHED=y
+CONFIG_BLK_CGROUP=y
+CONFIG_SCHED_AUTOGROUP=y
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_COMPAT_BRK is not set
+CONFIG_PROFILING=y
+CONFIG_OPROFILE=m
+CONFIG_KPROBES=y
+CONFIG_JUMP_LABEL=y
+CONFIG_MODULES=y
+CONFIG_MODULE_FORCE_LOAD=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_MODVERSIONS=y
+CONFIG_MODULE_SRCVERSION_ALL=y
+CONFIG_BLK_DEV_INTEGRITY=y
+CONFIG_BLK_DEV_THROTTLING=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_IBM_PARTITION=y
+CONFIG_BSD_DISKLABEL=y
+CONFIG_MINIX_SUBPARTITION=y
+CONFIG_SOLARIS_X86_PARTITION=y
+CONFIG_UNIXWARE_DISKLABEL=y
+CONFIG_CFQ_GROUP_IOSCHED=y
+CONFIG_DEFAULT_DEADLINE=y
+CONFIG_MARCH_Z9_109=y
+CONFIG_PREEMPT=y
+CONFIG_HZ_100=y
+CONFIG_MEMORY_HOTPLUG=y
+CONFIG_MEMORY_HOTREMOVE=y
+CONFIG_KSM=y
+CONFIG_TRANSPARENT_HUGEPAGE=y
+CONFIG_PCI=y
+CONFIG_PCI_DEBUG=y
+CONFIG_HOTPLUG_PCI=y
+CONFIG_HOTPLUG_PCI_S390=y
+CONFIG_CHSC_SCH=y
+CONFIG_CRASH_DUMP=y
+CONFIG_ZFCPDUMP=y
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+CONFIG_BINFMT_MISC=m
+CONFIG_HIBERNATION=y
+CONFIG_PACKET=y
+CONFIG_PACKET_DIAG=m
+CONFIG_UNIX=y
+CONFIG_UNIX_DIAG=m
+CONFIG_XFRM_USER=m
+CONFIG_NET_KEY=m
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_IP_ROUTE_MULTIPATH=y
+CONFIG_IP_ROUTE_VERBOSE=y
+CONFIG_NET_IPIP=m
+CONFIG_NET_IPGRE_DEMUX=m
+CONFIG_NET_IPGRE=m
+CONFIG_NET_IPGRE_BROADCAST=y
+CONFIG_IP_MROUTE=y
+CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
+CONFIG_IP_PIMSM_V1=y
+CONFIG_IP_PIMSM_V2=y
+CONFIG_SYN_COOKIES=y
+CONFIG_NET_IPVTI=m
+CONFIG_INET_AH=m
+CONFIG_INET_ESP=m
+CONFIG_INET_IPCOMP=m
+CONFIG_INET_XFRM_MODE_TRANSPORT=m
+CONFIG_INET_XFRM_MODE_TUNNEL=m
+CONFIG_INET_XFRM_MODE_BEET=m
+CONFIG_INET_DIAG=m
+CONFIG_INET_UDP_DIAG=m
+CONFIG_TCP_CONG_ADVANCED=y
+CONFIG_TCP_CONG_HSTCP=m
+CONFIG_TCP_CONG_HYBLA=m
+CONFIG_TCP_CONG_SCALABLE=m
+CONFIG_TCP_CONG_LP=m
+CONFIG_TCP_CONG_VENO=m
+CONFIG_TCP_CONG_YEAH=m
+CONFIG_TCP_CONG_ILLINOIS=m
+CONFIG_IPV6=y
+CONFIG_IPV6_PRIVACY=y
+CONFIG_IPV6_ROUTER_PREF=y
+CONFIG_INET6_AH=m
+CONFIG_INET6_ESP=m
+CONFIG_INET6_IPCOMP=m
+CONFIG_IPV6_MIP6=m
+CONFIG_INET6_XFRM_MODE_TRANSPORT=m
+CONFIG_INET6_XFRM_MODE_TUNNEL=m
+CONFIG_INET6_XFRM_MODE_BEET=m
+CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
+CONFIG_IPV6_SIT=m
+CONFIG_IPV6_GRE=m
+CONFIG_IPV6_MULTIPLE_TABLES=y
+CONFIG_IPV6_SUBTREES=y
+CONFIG_NETFILTER=y
+CONFIG_NF_CONNTRACK=m
+CONFIG_NF_CONNTRACK_SECMARK=y
+CONFIG_NF_CONNTRACK_EVENTS=y
+CONFIG_NF_CONNTRACK_TIMEOUT=y
+CONFIG_NF_CONNTRACK_TIMESTAMP=y
+CONFIG_NF_CT_PROTO_DCCP=m
+CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CONNTRACK_AMANDA=m
+CONFIG_NF_CONNTRACK_FTP=m
+CONFIG_NF_CONNTRACK_H323=m
+CONFIG_NF_CONNTRACK_IRC=m
+CONFIG_NF_CONNTRACK_NETBIOS_NS=m
+CONFIG_NF_CONNTRACK_SNMP=m
+CONFIG_NF_CONNTRACK_PPTP=m
+CONFIG_NF_CONNTRACK_SANE=m
+CONFIG_NF_CONNTRACK_SIP=m
+CONFIG_NF_CONNTRACK_TFTP=m
+CONFIG_NF_CT_NETLINK=m
+CONFIG_NF_CT_NETLINK_TIMEOUT=m
+CONFIG_NETFILTER_TPROXY=m
+CONFIG_NETFILTER_XT_SET=m
+CONFIG_NETFILTER_XT_TARGET_AUDIT=m
+CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
+CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
+CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
+CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m
+CONFIG_NETFILTER_XT_TARGET_CT=m
+CONFIG_NETFILTER_XT_TARGET_DSCP=m
+CONFIG_NETFILTER_XT_TARGET_HMARK=m
+CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m
+CONFIG_NETFILTER_XT_TARGET_LOG=m
+CONFIG_NETFILTER_XT_TARGET_MARK=m
+CONFIG_NETFILTER_XT_TARGET_NFLOG=m
+CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
+CONFIG_NETFILTER_XT_TARGET_TEE=m
+CONFIG_NETFILTER_XT_TARGET_TPROXY=m
+CONFIG_NETFILTER_XT_TARGET_TRACE=m
+CONFIG_NETFILTER_XT_TARGET_SECMARK=m
+CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
+CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m
+CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
+CONFIG_NETFILTER_XT_MATCH_BPF=m
+CONFIG_NETFILTER_XT_MATCH_CLUSTER=m
+CONFIG_NETFILTER_XT_MATCH_COMMENT=m
+CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
+CONFIG_NETFILTER_XT_MATCH_CONNLABEL=m
+CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
+CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
+CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
+CONFIG_NETFILTER_XT_MATCH_CPU=m
+CONFIG_NETFILTER_XT_MATCH_DCCP=m
+CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m
+CONFIG_NETFILTER_XT_MATCH_DSCP=m
+CONFIG_NETFILTER_XT_MATCH_ESP=m
+CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
+CONFIG_NETFILTER_XT_MATCH_HELPER=m
+CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
+CONFIG_NETFILTER_XT_MATCH_IPVS=m
+CONFIG_NETFILTER_XT_MATCH_LENGTH=m
+CONFIG_NETFILTER_XT_MATCH_LIMIT=m
+CONFIG_NETFILTER_XT_MATCH_MAC=m
+CONFIG_NETFILTER_XT_MATCH_MARK=m
+CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
+CONFIG_NETFILTER_XT_MATCH_NFACCT=m
+CONFIG_NETFILTER_XT_MATCH_OSF=m
+CONFIG_NETFILTER_XT_MATCH_OWNER=m
+CONFIG_NETFILTER_XT_MATCH_POLICY=m
+CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
+CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
+CONFIG_NETFILTER_XT_MATCH_QUOTA=m
+CONFIG_NETFILTER_XT_MATCH_RATEEST=m
+CONFIG_NETFILTER_XT_MATCH_REALM=m
+CONFIG_NETFILTER_XT_MATCH_RECENT=m
+CONFIG_NETFILTER_XT_MATCH_SOCKET=m
+CONFIG_NETFILTER_XT_MATCH_STATE=m
+CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
+CONFIG_NETFILTER_XT_MATCH_STRING=m
+CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
+CONFIG_NETFILTER_XT_MATCH_TIME=m
+CONFIG_NETFILTER_XT_MATCH_U32=m
+CONFIG_IP_SET=m
+CONFIG_IP_SET_BITMAP_IP=m
+CONFIG_IP_SET_BITMAP_IPMAC=m
+CONFIG_IP_SET_BITMAP_PORT=m
+CONFIG_IP_SET_HASH_IP=m
+CONFIG_IP_SET_HASH_IPPORT=m
+CONFIG_IP_SET_HASH_IPPORTIP=m
+CONFIG_IP_SET_HASH_IPPORTNET=m
+CONFIG_IP_SET_HASH_NET=m
+CONFIG_IP_SET_HASH_NETPORT=m
+CONFIG_IP_SET_HASH_NETIFACE=m
+CONFIG_IP_SET_LIST_SET=m
+CONFIG_IP_VS=m
+CONFIG_IP_VS_PROTO_TCP=y
+CONFIG_IP_VS_PROTO_UDP=y
+CONFIG_IP_VS_PROTO_ESP=y
+CONFIG_IP_VS_PROTO_AH=y
+CONFIG_IP_VS_RR=m
+CONFIG_IP_VS_WRR=m
+CONFIG_IP_VS_LC=m
+CONFIG_IP_VS_WLC=m
+CONFIG_IP_VS_LBLC=m
+CONFIG_IP_VS_LBLCR=m
+CONFIG_IP_VS_DH=m
+CONFIG_IP_VS_SH=m
+CONFIG_IP_VS_SED=m
+CONFIG_IP_VS_NQ=m
+CONFIG_IP_VS_FTP=m
+CONFIG_IP_VS_PE_SIP=m
+CONFIG_NF_CONNTRACK_IPV4=m
+# CONFIG_NF_CONNTRACK_PROC_COMPAT is not set
+CONFIG_IP_NF_IPTABLES=m
+CONFIG_IP_NF_MATCH_AH=m
+CONFIG_IP_NF_MATCH_ECN=m
+CONFIG_IP_NF_MATCH_RPFILTER=m
+CONFIG_IP_NF_MATCH_TTL=m
+CONFIG_IP_NF_FILTER=m
+CONFIG_IP_NF_TARGET_REJECT=m
+CONFIG_IP_NF_TARGET_ULOG=m
+CONFIG_NF_NAT_IPV4=m
+CONFIG_IP_NF_TARGET_MASQUERADE=m
+CONFIG_IP_NF_TARGET_NETMAP=m
+CONFIG_IP_NF_TARGET_REDIRECT=m
+CONFIG_IP_NF_MANGLE=m
+CONFIG_IP_NF_TARGET_CLUSTERIP=m
+CONFIG_IP_NF_TARGET_ECN=m
+CONFIG_IP_NF_TARGET_TTL=m
+CONFIG_IP_NF_RAW=m
+CONFIG_IP_NF_SECURITY=m
+CONFIG_IP_NF_ARPTABLES=m
+CONFIG_IP_NF_ARPFILTER=m
+CONFIG_IP_NF_ARP_MANGLE=m
+CONFIG_NF_CONNTRACK_IPV6=m
+CONFIG_IP6_NF_IPTABLES=m
+CONFIG_IP6_NF_MATCH_AH=m
+CONFIG_IP6_NF_MATCH_EUI64=m
+CONFIG_IP6_NF_MATCH_FRAG=m
+CONFIG_IP6_NF_MATCH_OPTS=m
+CONFIG_IP6_NF_MATCH_HL=m
+CONFIG_IP6_NF_MATCH_IPV6HEADER=m
+CONFIG_IP6_NF_MATCH_MH=m
+CONFIG_IP6_NF_MATCH_RPFILTER=m
+CONFIG_IP6_NF_MATCH_RT=m
+CONFIG_IP6_NF_TARGET_HL=m
+CONFIG_IP6_NF_FILTER=m
+CONFIG_IP6_NF_TARGET_REJECT=m
+CONFIG_IP6_NF_MANGLE=m
+CONFIG_IP6_NF_RAW=m
+CONFIG_IP6_NF_SECURITY=m
+CONFIG_NF_NAT_IPV6=m
+CONFIG_IP6_NF_TARGET_MASQUERADE=m
+CONFIG_IP6_NF_TARGET_NPT=m
+CONFIG_NET_SCTPPROBE=m
+CONFIG_RDS=m
+CONFIG_RDS_RDMA=m
+CONFIG_RDS_TCP=m
+CONFIG_RDS_DEBUG=y
+CONFIG_L2TP=m
+CONFIG_L2TP_DEBUGFS=m
+CONFIG_L2TP_V3=y
+CONFIG_L2TP_IP=m
+CONFIG_L2TP_ETH=m
+CONFIG_BRIDGE=m
+CONFIG_VLAN_8021Q=m
+CONFIG_VLAN_8021Q_GVRP=y
+CONFIG_NET_SCHED=y
+CONFIG_NET_SCH_CBQ=m
+CONFIG_NET_SCH_HTB=m
+CONFIG_NET_SCH_HFSC=m
+CONFIG_NET_SCH_PRIO=m
+CONFIG_NET_SCH_MULTIQ=m
+CONFIG_NET_SCH_RED=m
+CONFIG_NET_SCH_SFB=m
+CONFIG_NET_SCH_SFQ=m
+CONFIG_NET_SCH_TEQL=m
+CONFIG_NET_SCH_TBF=m
+CONFIG_NET_SCH_GRED=m
+CONFIG_NET_SCH_DSMARK=m
+CONFIG_NET_SCH_NETEM=m
+CONFIG_NET_SCH_DRR=m
+CONFIG_NET_SCH_MQPRIO=m
+CONFIG_NET_SCH_CHOKE=m
+CONFIG_NET_SCH_QFQ=m
+CONFIG_NET_SCH_CODEL=m
+CONFIG_NET_SCH_FQ_CODEL=m
+CONFIG_NET_SCH_INGRESS=m
+CONFIG_NET_SCH_PLUG=m
+CONFIG_NET_CLS_BASIC=m
+CONFIG_NET_CLS_TCINDEX=m
+CONFIG_NET_CLS_ROUTE4=m
+CONFIG_NET_CLS_FW=m
+CONFIG_NET_CLS_U32=m
+CONFIG_CLS_U32_PERF=y
+CONFIG_CLS_U32_MARK=y
+CONFIG_NET_CLS_RSVP=m
+CONFIG_NET_CLS_RSVP6=m
+CONFIG_NET_CLS_FLOW=m
+CONFIG_NET_CLS_CGROUP=y
+CONFIG_NET_CLS_ACT=y
+CONFIG_NET_ACT_POLICE=m
+CONFIG_NET_ACT_GACT=m
+CONFIG_GACT_PROB=y
+CONFIG_NET_ACT_MIRRED=m
+CONFIG_NET_ACT_IPT=m
+CONFIG_NET_ACT_NAT=m
+CONFIG_NET_ACT_PEDIT=m
+CONFIG_NET_ACT_SIMP=m
+CONFIG_NET_ACT_SKBEDIT=m
+CONFIG_NET_ACT_CSUM=m
+CONFIG_DNS_RESOLVER=y
+CONFIG_BPF_JIT=y
+CONFIG_NET_PKTGEN=m
+CONFIG_NET_TCPPROBE=m
+CONFIG_DEVTMPFS=y
+CONFIG_CONNECTOR=y
+CONFIG_BLK_DEV_LOOP=m
+CONFIG_BLK_DEV_CRYPTOLOOP=m
+CONFIG_BLK_DEV_NBD=m
+CONFIG_BLK_DEV_OSD=m
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=32768
+CONFIG_BLK_DEV_XIP=y
+CONFIG_CDROM_PKTCDVD=m
+CONFIG_ATA_OVER_ETH=m
+CONFIG_VIRTIO_BLK=y
+CONFIG_ENCLOSURE_SERVICES=m
+CONFIG_RAID_ATTRS=m
+CONFIG_SCSI=y
+CONFIG_SCSI_TGT=m
+CONFIG_BLK_DEV_SD=y
+CONFIG_CHR_DEV_ST=m
+CONFIG_CHR_DEV_OSST=m
+CONFIG_BLK_DEV_SR=m
+CONFIG_CHR_DEV_SG=y
+CONFIG_CHR_DEV_SCH=m
+CONFIG_SCSI_ENCLOSURE=m
+CONFIG_SCSI_MULTI_LUN=y
+CONFIG_SCSI_CONSTANTS=y
+CONFIG_SCSI_LOGGING=y
+CONFIG_SCSI_SPI_ATTRS=m
+CONFIG_SCSI_SAS_LIBSAS=m
+CONFIG_SCSI_SRP_ATTRS=m
+CONFIG_SCSI_SRP_TGT_ATTRS=y
+CONFIG_ISCSI_TCP=m
+CONFIG_LIBFCOE=m
+CONFIG_SCSI_DEBUG=m
+CONFIG_ZFCP=y
+CONFIG_SCSI_VIRTIO=m
+CONFIG_SCSI_DH=m
+CONFIG_SCSI_DH_RDAC=m
+CONFIG_SCSI_DH_HP_SW=m
+CONFIG_SCSI_DH_EMC=m
+CONFIG_SCSI_DH_ALUA=m
+CONFIG_SCSI_OSD_INITIATOR=m
+CONFIG_SCSI_OSD_ULD=m
+CONFIG_MD=y
+CONFIG_BLK_DEV_MD=y
+CONFIG_MD_LINEAR=m
+CONFIG_MD_RAID0=m
+CONFIG_MD_MULTIPATH=m
+CONFIG_MD_FAULTY=m
+CONFIG_BLK_DEV_DM=m
+CONFIG_DM_CRYPT=m
+CONFIG_DM_SNAPSHOT=m
+CONFIG_DM_MIRROR=m
+CONFIG_DM_RAID=m
+CONFIG_DM_LOG_USERSPACE=m
+CONFIG_DM_ZERO=m
+CONFIG_DM_MULTIPATH=m
+CONFIG_DM_MULTIPATH_QL=m
+CONFIG_DM_MULTIPATH_ST=m
+CONFIG_DM_DELAY=m
+CONFIG_DM_UEVENT=y
+CONFIG_DM_FLAKEY=m
+CONFIG_DM_VERITY=m
+CONFIG_DM_SWITCH=m
+CONFIG_NETDEVICES=y
+CONFIG_BONDING=m
+CONFIG_DUMMY=m
+CONFIG_EQUALIZER=m
+CONFIG_IFB=m
+CONFIG_MACVLAN=m
+CONFIG_MACVTAP=m
+CONFIG_VXLAN=m
+CONFIG_TUN=m
+CONFIG_VETH=m
+CONFIG_VIRTIO_NET=m
+CONFIG_NLMON=m
+CONFIG_VHOST_NET=m
+# CONFIG_NET_VENDOR_ARC is not set
+# CONFIG_NET_CADENCE is not set
+# CONFIG_NET_VENDOR_CHELSIO is not set
+# CONFIG_NET_VENDOR_INTEL is not set
+# CONFIG_NET_VENDOR_MARVELL is not set
+CONFIG_MLX4_EN=m
+# CONFIG_NET_VENDOR_NATSEMI is not set
+CONFIG_PPP=m
+CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
+CONFIG_PPP_MPPE=m
+CONFIG_PPPOE=m
+CONFIG_PPTP=m
+CONFIG_PPPOL2TP=m
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO is not set
+CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
+CONFIG_LEGACY_PTY_COUNT=0
+CONFIG_HW_RANDOM_VIRTIO=m
+CONFIG_RAW_DRIVER=m
+CONFIG_HANGCHECK_TIMER=m
+CONFIG_TN3270_FS=y
+CONFIG_WATCHDOG=y
+CONFIG_WATCHDOG_NOWAYOUT=y
+CONFIG_SOFT_WATCHDOG=m
+CONFIG_ZVM_WATCHDOG=m
+# CONFIG_HID is not set
+# CONFIG_USB_SUPPORT is not set
+CONFIG_INFINIBAND=m
+CONFIG_INFINIBAND_USER_ACCESS=m
+CONFIG_MLX4_INFINIBAND=m
+CONFIG_VIRTIO_BALLOON=m
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_POSIX_ACL=y
+CONFIG_EXT2_FS_SECURITY=y
+CONFIG_EXT2_FS_XIP=y
+CONFIG_EXT3_FS=y
+# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
+CONFIG_EXT3_FS_POSIX_ACL=y
+CONFIG_EXT3_FS_SECURITY=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_JBD_DEBUG=y
+CONFIG_JBD2_DEBUG=y
+CONFIG_JFS_FS=m
+CONFIG_JFS_POSIX_ACL=y
+CONFIG_JFS_SECURITY=y
+CONFIG_JFS_STATISTICS=y
+CONFIG_XFS_FS=m
+CONFIG_XFS_QUOTA=y
+CONFIG_XFS_POSIX_ACL=y
+CONFIG_XFS_RT=y
+CONFIG_XFS_DEBUG=y
+CONFIG_GFS2_FS=m
+CONFIG_OCFS2_FS=m
+CONFIG_BTRFS_FS=m
+CONFIG_BTRFS_FS_POSIX_ACL=y
+CONFIG_NILFS2_FS=m
+CONFIG_FANOTIFY=y
+CONFIG_QUOTA_NETLINK_INTERFACE=y
+CONFIG_QFMT_V1=m
+CONFIG_QFMT_V2=m
+CONFIG_AUTOFS4_FS=m
+CONFIG_FUSE_FS=m
+CONFIG_CUSE=m
+CONFIG_FSCACHE=m
+CONFIG_CACHEFILES=m
+CONFIG_ISO9660_FS=y
+CONFIG_JOLIET=y
+CONFIG_ZISOFS=y
+CONFIG_UDF_FS=m
+CONFIG_MSDOS_FS=m
+CONFIG_VFAT_FS=m
+CONFIG_NTFS_FS=m
+CONFIG_NTFS_RW=y
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_HUGETLBFS=y
+CONFIG_CONFIGFS_FS=m
+CONFIG_ECRYPT_FS=m
+CONFIG_CRAMFS=m
+CONFIG_SQUASHFS=m
+CONFIG_SQUASHFS_XATTR=y
+CONFIG_SQUASHFS_LZO=y
+CONFIG_SQUASHFS_XZ=y
+CONFIG_ROMFS_FS=m
+CONFIG_NFS_FS=m
+CONFIG_NFS_V3_ACL=y
+CONFIG_NFS_V4=m
+CONFIG_NFS_SWAP=y
+CONFIG_NFSD=m
+CONFIG_NFSD_V3_ACL=y
+CONFIG_NFSD_V4=y
+CONFIG_NFSD_V4_SECURITY_LABEL=y
+CONFIG_CIFS=m
+CONFIG_CIFS_STATS=y
+CONFIG_CIFS_STATS2=y
+CONFIG_CIFS_WEAK_PW_HASH=y
+CONFIG_CIFS_UPCALL=y
+CONFIG_CIFS_XATTR=y
+CONFIG_CIFS_POSIX=y
+# CONFIG_CIFS_DEBUG is not set
+CONFIG_CIFS_DFS_UPCALL=y
+CONFIG_NLS_DEFAULT="utf8"
+CONFIG_NLS_CODEPAGE_437=m
+CONFIG_NLS_CODEPAGE_850=m
+CONFIG_NLS_ASCII=m
+CONFIG_NLS_ISO8859_1=m
+CONFIG_NLS_ISO8859_15=m
+CONFIG_NLS_UTF8=m
+CONFIG_DLM=m
+CONFIG_PRINTK_TIME=y
+CONFIG_DYNAMIC_DEBUG=y
+CONFIG_DEBUG_INFO=y
+# CONFIG_ENABLE_MUST_CHECK is not set
+CONFIG_FRAME_WARN=1024
+CONFIG_READABLE_ASM=y
+CONFIG_UNUSED_SYMBOLS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_DEBUG_PAGEALLOC=y
+CONFIG_SLUB_DEBUG_ON=y
+CONFIG_SLUB_STATS=y
+CONFIG_DEBUG_STACK_USAGE=y
+CONFIG_DEBUG_VM=y
+CONFIG_DEBUG_VM_RB=y
+CONFIG_MEMORY_NOTIFIER_ERROR_INJECT=m
+CONFIG_DEBUG_PER_CPU_MAPS=y
+CONFIG_TIMER_STATS=y
+CONFIG_DEBUG_RT_MUTEXES=y
+CONFIG_RT_MUTEX_TESTER=y
+CONFIG_DEBUG_WW_MUTEX_SLOWPATH=y
+CONFIG_PROVE_LOCKING=y
+CONFIG_LOCK_STAT=y
+CONFIG_DEBUG_LOCKDEP=y
+CONFIG_DEBUG_ATOMIC_SLEEP=y
+CONFIG_DEBUG_LOCKING_API_SELFTESTS=y
+CONFIG_DEBUG_WRITECOUNT=y
+CONFIG_DEBUG_LIST=y
+CONFIG_DEBUG_SG=y
+CONFIG_DEBUG_NOTIFIERS=y
+CONFIG_DEBUG_CREDENTIALS=y
+CONFIG_PROVE_RCU=y
+CONFIG_RCU_TORTURE_TEST=m
+CONFIG_RCU_CPU_STALL_TIMEOUT=300
+CONFIG_NOTIFIER_ERROR_INJECTION=m
+CONFIG_CPU_NOTIFIER_ERROR_INJECT=m
+CONFIG_PM_NOTIFIER_ERROR_INJECT=m
+CONFIG_FAULT_INJECTION=y
+CONFIG_FAILSLAB=y
+CONFIG_FAIL_PAGE_ALLOC=y
+CONFIG_FAIL_MAKE_REQUEST=y
+CONFIG_FAIL_IO_TIMEOUT=y
+CONFIG_FAULT_INJECTION_DEBUG_FS=y
+CONFIG_FAULT_INJECTION_STACKTRACE_FILTER=y
+CONFIG_LATENCYTOP=y
+CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y
+CONFIG_BLK_DEV_IO_TRACE=y
+# CONFIG_KPROBE_EVENT is not set
+CONFIG_LKDTM=m
+CONFIG_KPROBES_SANITY_TEST=y
+CONFIG_RBTREE_TEST=m
+CONFIG_INTERVAL_TREE_TEST=m
+CONFIG_ATOMIC64_SELFTEST=y
+CONFIG_DMA_API_DEBUG=y
+# CONFIG_STRICT_DEVMEM is not set
+CONFIG_S390_PTDUMP=y
+CONFIG_ENCRYPTED_KEYS=m
+CONFIG_KEYS_DEBUG_PROC_KEYS=y
+CONFIG_SECURITY=y
+CONFIG_SECURITY_NETWORK=y
+CONFIG_SECURITY_SELINUX=y
+CONFIG_SECURITY_SELINUX_BOOTPARAM=y
+CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=0
+CONFIG_SECURITY_SELINUX_DISABLE=y
+CONFIG_IMA=y
+CONFIG_IMA_APPRAISE=y
+CONFIG_CRYPTO_USER=m
+# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
+CONFIG_CRYPTO_CRYPTD=m
+CONFIG_CRYPTO_TEST=m
+CONFIG_CRYPTO_CCM=m
+CONFIG_CRYPTO_GCM=m
+CONFIG_CRYPTO_CTS=m
+CONFIG_CRYPTO_LRW=m
+CONFIG_CRYPTO_PCBC=m
+CONFIG_CRYPTO_XTS=m
+CONFIG_CRYPTO_XCBC=m
+CONFIG_CRYPTO_VMAC=m
+CONFIG_CRYPTO_CRC32=m
+CONFIG_CRYPTO_MICHAEL_MIC=m
+CONFIG_CRYPTO_RMD128=m
+CONFIG_CRYPTO_RMD160=m
+CONFIG_CRYPTO_RMD256=m
+CONFIG_CRYPTO_RMD320=m
+CONFIG_CRYPTO_SHA512=m
+CONFIG_CRYPTO_TGR192=m
+CONFIG_CRYPTO_WP512=m
+CONFIG_CRYPTO_ANUBIS=m
+CONFIG_CRYPTO_BLOWFISH=m
+CONFIG_CRYPTO_CAMELLIA=m
+CONFIG_CRYPTO_CAST5=m
+CONFIG_CRYPTO_CAST6=m
+CONFIG_CRYPTO_FCRYPT=m
+CONFIG_CRYPTO_KHAZAD=m
+CONFIG_CRYPTO_SALSA20=m
+CONFIG_CRYPTO_SEED=m
+CONFIG_CRYPTO_SERPENT=m
+CONFIG_CRYPTO_TEA=m
+CONFIG_CRYPTO_TWOFISH=m
+CONFIG_CRYPTO_ZLIB=y
+CONFIG_CRYPTO_LZO=m
+CONFIG_CRYPTO_LZ4=m
+CONFIG_CRYPTO_LZ4HC=m
+CONFIG_CRYPTO_USER_API_HASH=m
+CONFIG_CRYPTO_USER_API_SKCIPHER=m
+CONFIG_ZCRYPT=m
+CONFIG_CRYPTO_SHA1_S390=m
+CONFIG_CRYPTO_SHA256_S390=m
+CONFIG_CRYPTO_SHA512_S390=m
+CONFIG_CRYPTO_DES_S390=m
+CONFIG_CRYPTO_AES_S390=m
+CONFIG_CRYPTO_GHASH_S390=m
+CONFIG_ASYMMETRIC_KEY_TYPE=m
+CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=m
+CONFIG_PUBLIC_KEY_ALGO_RSA=m
+CONFIG_X509_CERTIFICATE_PARSER=m
+CONFIG_CRC7=m
+CONFIG_CRC8=m
+CONFIG_XZ_DEC_X86=y
+CONFIG_XZ_DEC_POWERPC=y
+CONFIG_XZ_DEC_IA64=y
+CONFIG_XZ_DEC_ARM=y
+CONFIG_XZ_DEC_ARMTHUMB=y
+CONFIG_XZ_DEC_SPARC=y
+CONFIG_CORDIC=m
+CONFIG_CMM=m
+CONFIG_APPLDATA_BASE=y
+CONFIG_KVM=m
+CONFIG_KVM_S390_UCONTROL=y
diff --git a/arch/s390/configs/gcov_defconfig b/arch/s390/configs/gcov_defconfig
new file mode 100644
index 000000000000..b9f6b4cab927
--- /dev/null
+++ b/arch/s390/configs/gcov_defconfig
@@ -0,0 +1,618 @@
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_FHANDLE=y
+CONFIG_AUDIT=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_RCU_FAST_NO_HZ=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CPUSETS=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_RESOURCE_COUNTERS=y
+CONFIG_CGROUP_PERF=y
+CONFIG_BLK_CGROUP=y
+CONFIG_SCHED_AUTOGROUP=y
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_COMPAT_BRK is not set
+CONFIG_PROFILING=y
+CONFIG_OPROFILE=m
+CONFIG_KPROBES=y
+CONFIG_JUMP_LABEL=y
+CONFIG_GCOV_KERNEL=y
+CONFIG_GCOV_PROFILE_ALL=y
+CONFIG_MODULES=y
+CONFIG_MODULE_FORCE_LOAD=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_MODVERSIONS=y
+CONFIG_MODULE_SRCVERSION_ALL=y
+CONFIG_BLK_DEV_INTEGRITY=y
+CONFIG_BLK_DEV_THROTTLING=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_IBM_PARTITION=y
+CONFIG_BSD_DISKLABEL=y
+CONFIG_MINIX_SUBPARTITION=y
+CONFIG_SOLARIS_X86_PARTITION=y
+CONFIG_UNIXWARE_DISKLABEL=y
+CONFIG_CFQ_GROUP_IOSCHED=y
+CONFIG_DEFAULT_DEADLINE=y
+CONFIG_MARCH_Z9_109=y
+CONFIG_HZ_100=y
+CONFIG_MEMORY_HOTPLUG=y
+CONFIG_MEMORY_HOTREMOVE=y
+CONFIG_KSM=y
+CONFIG_TRANSPARENT_HUGEPAGE=y
+CONFIG_PCI=y
+CONFIG_HOTPLUG_PCI=y
+CONFIG_HOTPLUG_PCI_S390=y
+CONFIG_CHSC_SCH=y
+CONFIG_CRASH_DUMP=y
+CONFIG_ZFCPDUMP=y
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+CONFIG_BINFMT_MISC=m
+CONFIG_HIBERNATION=y
+CONFIG_PACKET=y
+CONFIG_PACKET_DIAG=m
+CONFIG_UNIX=y
+CONFIG_UNIX_DIAG=m
+CONFIG_XFRM_USER=m
+CONFIG_NET_KEY=m
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_IP_ROUTE_MULTIPATH=y
+CONFIG_IP_ROUTE_VERBOSE=y
+CONFIG_NET_IPIP=m
+CONFIG_NET_IPGRE_DEMUX=m
+CONFIG_NET_IPGRE=m
+CONFIG_NET_IPGRE_BROADCAST=y
+CONFIG_IP_MROUTE=y
+CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
+CONFIG_IP_PIMSM_V1=y
+CONFIG_IP_PIMSM_V2=y
+CONFIG_SYN_COOKIES=y
+CONFIG_NET_IPVTI=m
+CONFIG_INET_AH=m
+CONFIG_INET_ESP=m
+CONFIG_INET_IPCOMP=m
+CONFIG_INET_XFRM_MODE_TRANSPORT=m
+CONFIG_INET_XFRM_MODE_TUNNEL=m
+CONFIG_INET_XFRM_MODE_BEET=m
+CONFIG_INET_DIAG=m
+CONFIG_INET_UDP_DIAG=m
+CONFIG_TCP_CONG_ADVANCED=y
+CONFIG_TCP_CONG_HSTCP=m
+CONFIG_TCP_CONG_HYBLA=m
+CONFIG_TCP_CONG_SCALABLE=m
+CONFIG_TCP_CONG_LP=m
+CONFIG_TCP_CONG_VENO=m
+CONFIG_TCP_CONG_YEAH=m
+CONFIG_TCP_CONG_ILLINOIS=m
+CONFIG_IPV6=y
+CONFIG_IPV6_PRIVACY=y
+CONFIG_IPV6_ROUTER_PREF=y
+CONFIG_INET6_AH=m
+CONFIG_INET6_ESP=m
+CONFIG_INET6_IPCOMP=m
+CONFIG_IPV6_MIP6=m
+CONFIG_INET6_XFRM_MODE_TRANSPORT=m
+CONFIG_INET6_XFRM_MODE_TUNNEL=m
+CONFIG_INET6_XFRM_MODE_BEET=m
+CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
+CONFIG_IPV6_SIT=m
+CONFIG_IPV6_GRE=m
+CONFIG_IPV6_MULTIPLE_TABLES=y
+CONFIG_IPV6_SUBTREES=y
+CONFIG_NETFILTER=y
+CONFIG_NF_CONNTRACK=m
+CONFIG_NF_CONNTRACK_SECMARK=y
+CONFIG_NF_CONNTRACK_EVENTS=y
+CONFIG_NF_CONNTRACK_TIMEOUT=y
+CONFIG_NF_CONNTRACK_TIMESTAMP=y
+CONFIG_NF_CT_PROTO_DCCP=m
+CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CONNTRACK_AMANDA=m
+CONFIG_NF_CONNTRACK_FTP=m
+CONFIG_NF_CONNTRACK_H323=m
+CONFIG_NF_CONNTRACK_IRC=m
+CONFIG_NF_CONNTRACK_NETBIOS_NS=m
+CONFIG_NF_CONNTRACK_SNMP=m
+CONFIG_NF_CONNTRACK_PPTP=m
+CONFIG_NF_CONNTRACK_SANE=m
+CONFIG_NF_CONNTRACK_SIP=m
+CONFIG_NF_CONNTRACK_TFTP=m
+CONFIG_NF_CT_NETLINK=m
+CONFIG_NF_CT_NETLINK_TIMEOUT=m
+CONFIG_NETFILTER_TPROXY=m
+CONFIG_NETFILTER_XT_SET=m
+CONFIG_NETFILTER_XT_TARGET_AUDIT=m
+CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
+CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
+CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
+CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m
+CONFIG_NETFILTER_XT_TARGET_CT=m
+CONFIG_NETFILTER_XT_TARGET_DSCP=m
+CONFIG_NETFILTER_XT_TARGET_HMARK=m
+CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m
+CONFIG_NETFILTER_XT_TARGET_LOG=m
+CONFIG_NETFILTER_XT_TARGET_MARK=m
+CONFIG_NETFILTER_XT_TARGET_NFLOG=m
+CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
+CONFIG_NETFILTER_XT_TARGET_TEE=m
+CONFIG_NETFILTER_XT_TARGET_TPROXY=m
+CONFIG_NETFILTER_XT_TARGET_TRACE=m
+CONFIG_NETFILTER_XT_TARGET_SECMARK=m
+CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
+CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m
+CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
+CONFIG_NETFILTER_XT_MATCH_BPF=m
+CONFIG_NETFILTER_XT_MATCH_CLUSTER=m
+CONFIG_NETFILTER_XT_MATCH_COMMENT=m
+CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
+CONFIG_NETFILTER_XT_MATCH_CONNLABEL=m
+CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
+CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
+CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
+CONFIG_NETFILTER_XT_MATCH_CPU=m
+CONFIG_NETFILTER_XT_MATCH_DCCP=m
+CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m
+CONFIG_NETFILTER_XT_MATCH_DSCP=m
+CONFIG_NETFILTER_XT_MATCH_ESP=m
+CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
+CONFIG_NETFILTER_XT_MATCH_HELPER=m
+CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
+CONFIG_NETFILTER_XT_MATCH_IPVS=m
+CONFIG_NETFILTER_XT_MATCH_LENGTH=m
+CONFIG_NETFILTER_XT_MATCH_LIMIT=m
+CONFIG_NETFILTER_XT_MATCH_MAC=m
+CONFIG_NETFILTER_XT_MATCH_MARK=m
+CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
+CONFIG_NETFILTER_XT_MATCH_NFACCT=m
+CONFIG_NETFILTER_XT_MATCH_OSF=m
+CONFIG_NETFILTER_XT_MATCH_OWNER=m
+CONFIG_NETFILTER_XT_MATCH_POLICY=m
+CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
+CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
+CONFIG_NETFILTER_XT_MATCH_QUOTA=m
+CONFIG_NETFILTER_XT_MATCH_RATEEST=m
+CONFIG_NETFILTER_XT_MATCH_REALM=m
+CONFIG_NETFILTER_XT_MATCH_RECENT=m
+CONFIG_NETFILTER_XT_MATCH_SOCKET=m
+CONFIG_NETFILTER_XT_MATCH_STATE=m
+CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
+CONFIG_NETFILTER_XT_MATCH_STRING=m
+CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
+CONFIG_NETFILTER_XT_MATCH_TIME=m
+CONFIG_NETFILTER_XT_MATCH_U32=m
+CONFIG_IP_SET=m
+CONFIG_IP_SET_BITMAP_IP=m
+CONFIG_IP_SET_BITMAP_IPMAC=m
+CONFIG_IP_SET_BITMAP_PORT=m
+CONFIG_IP_SET_HASH_IP=m
+CONFIG_IP_SET_HASH_IPPORT=m
+CONFIG_IP_SET_HASH_IPPORTIP=m
+CONFIG_IP_SET_HASH_IPPORTNET=m
+CONFIG_IP_SET_HASH_NET=m
+CONFIG_IP_SET_HASH_NETPORT=m
+CONFIG_IP_SET_HASH_NETIFACE=m
+CONFIG_IP_SET_LIST_SET=m
+CONFIG_IP_VS=m
+CONFIG_IP_VS_PROTO_TCP=y
+CONFIG_IP_VS_PROTO_UDP=y
+CONFIG_IP_VS_PROTO_ESP=y
+CONFIG_IP_VS_PROTO_AH=y
+CONFIG_IP_VS_RR=m
+CONFIG_IP_VS_WRR=m
+CONFIG_IP_VS_LC=m
+CONFIG_IP_VS_WLC=m
+CONFIG_IP_VS_LBLC=m
+CONFIG_IP_VS_LBLCR=m
+CONFIG_IP_VS_DH=m
+CONFIG_IP_VS_SH=m
+CONFIG_IP_VS_SED=m
+CONFIG_IP_VS_NQ=m
+CONFIG_IP_VS_FTP=m
+CONFIG_IP_VS_PE_SIP=m
+CONFIG_NF_CONNTRACK_IPV4=m
+# CONFIG_NF_CONNTRACK_PROC_COMPAT is not set
+CONFIG_IP_NF_IPTABLES=m
+CONFIG_IP_NF_MATCH_AH=m
+CONFIG_IP_NF_MATCH_ECN=m
+CONFIG_IP_NF_MATCH_RPFILTER=m
+CONFIG_IP_NF_MATCH_TTL=m
+CONFIG_IP_NF_FILTER=m
+CONFIG_IP_NF_TARGET_REJECT=m
+CONFIG_IP_NF_TARGET_ULOG=m
+CONFIG_NF_NAT_IPV4=m
+CONFIG_IP_NF_TARGET_MASQUERADE=m
+CONFIG_IP_NF_TARGET_NETMAP=m
+CONFIG_IP_NF_TARGET_REDIRECT=m
+CONFIG_IP_NF_MANGLE=m
+CONFIG_IP_NF_TARGET_CLUSTERIP=m
+CONFIG_IP_NF_TARGET_ECN=m
+CONFIG_IP_NF_TARGET_TTL=m
+CONFIG_IP_NF_RAW=m
+CONFIG_IP_NF_SECURITY=m
+CONFIG_IP_NF_ARPTABLES=m
+CONFIG_IP_NF_ARPFILTER=m
+CONFIG_IP_NF_ARP_MANGLE=m
+CONFIG_NF_CONNTRACK_IPV6=m
+CONFIG_IP6_NF_IPTABLES=m
+CONFIG_IP6_NF_MATCH_AH=m
+CONFIG_IP6_NF_MATCH_EUI64=m
+CONFIG_IP6_NF_MATCH_FRAG=m
+CONFIG_IP6_NF_MATCH_OPTS=m
+CONFIG_IP6_NF_MATCH_HL=m
+CONFIG_IP6_NF_MATCH_IPV6HEADER=m
+CONFIG_IP6_NF_MATCH_MH=m
+CONFIG_IP6_NF_MATCH_RPFILTER=m
+CONFIG_IP6_NF_MATCH_RT=m
+CONFIG_IP6_NF_TARGET_HL=m
+CONFIG_IP6_NF_FILTER=m
+CONFIG_IP6_NF_TARGET_REJECT=m
+CONFIG_IP6_NF_MANGLE=m
+CONFIG_IP6_NF_RAW=m
+CONFIG_IP6_NF_SECURITY=m
+CONFIG_NF_NAT_IPV6=m
+CONFIG_IP6_NF_TARGET_MASQUERADE=m
+CONFIG_IP6_NF_TARGET_NPT=m
+CONFIG_NET_SCTPPROBE=m
+CONFIG_RDS=m
+CONFIG_RDS_RDMA=m
+CONFIG_RDS_TCP=m
+CONFIG_L2TP=m
+CONFIG_L2TP_DEBUGFS=m
+CONFIG_L2TP_V3=y
+CONFIG_L2TP_IP=m
+CONFIG_L2TP_ETH=m
+CONFIG_BRIDGE=m
+CONFIG_VLAN_8021Q=m
+CONFIG_VLAN_8021Q_GVRP=y
+CONFIG_NET_SCHED=y
+CONFIG_NET_SCH_CBQ=m
+CONFIG_NET_SCH_HTB=m
+CONFIG_NET_SCH_HFSC=m
+CONFIG_NET_SCH_PRIO=m
+CONFIG_NET_SCH_MULTIQ=m
+CONFIG_NET_SCH_RED=m
+CONFIG_NET_SCH_SFB=m
+CONFIG_NET_SCH_SFQ=m
+CONFIG_NET_SCH_TEQL=m
+CONFIG_NET_SCH_TBF=m
+CONFIG_NET_SCH_GRED=m
+CONFIG_NET_SCH_DSMARK=m
+CONFIG_NET_SCH_NETEM=m
+CONFIG_NET_SCH_DRR=m
+CONFIG_NET_SCH_MQPRIO=m
+CONFIG_NET_SCH_CHOKE=m
+CONFIG_NET_SCH_QFQ=m
+CONFIG_NET_SCH_CODEL=m
+CONFIG_NET_SCH_FQ_CODEL=m
+CONFIG_NET_SCH_INGRESS=m
+CONFIG_NET_SCH_PLUG=m
+CONFIG_NET_CLS_BASIC=m
+CONFIG_NET_CLS_TCINDEX=m
+CONFIG_NET_CLS_ROUTE4=m
+CONFIG_NET_CLS_FW=m
+CONFIG_NET_CLS_U32=m
+CONFIG_CLS_U32_PERF=y
+CONFIG_CLS_U32_MARK=y
+CONFIG_NET_CLS_RSVP=m
+CONFIG_NET_CLS_RSVP6=m
+CONFIG_NET_CLS_FLOW=m
+CONFIG_NET_CLS_CGROUP=y
+CONFIG_NET_CLS_ACT=y
+CONFIG_NET_ACT_POLICE=m
+CONFIG_NET_ACT_GACT=m
+CONFIG_GACT_PROB=y
+CONFIG_NET_ACT_MIRRED=m
+CONFIG_NET_ACT_IPT=m
+CONFIG_NET_ACT_NAT=m
+CONFIG_NET_ACT_PEDIT=m
+CONFIG_NET_ACT_SIMP=m
+CONFIG_NET_ACT_SKBEDIT=m
+CONFIG_NET_ACT_CSUM=m
+CONFIG_DNS_RESOLVER=y
+CONFIG_BPF_JIT=y
+CONFIG_NET_PKTGEN=m
+CONFIG_NET_TCPPROBE=m
+CONFIG_DEVTMPFS=y
+CONFIG_CONNECTOR=y
+CONFIG_BLK_DEV_LOOP=m
+CONFIG_BLK_DEV_CRYPTOLOOP=m
+CONFIG_BLK_DEV_NBD=m
+CONFIG_BLK_DEV_OSD=m
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=32768
+CONFIG_BLK_DEV_XIP=y
+CONFIG_CDROM_PKTCDVD=m
+CONFIG_ATA_OVER_ETH=m
+CONFIG_VIRTIO_BLK=y
+CONFIG_ENCLOSURE_SERVICES=m
+CONFIG_RAID_ATTRS=m
+CONFIG_SCSI=y
+CONFIG_SCSI_TGT=m
+CONFIG_BLK_DEV_SD=y
+CONFIG_CHR_DEV_ST=m
+CONFIG_CHR_DEV_OSST=m
+CONFIG_BLK_DEV_SR=m
+CONFIG_CHR_DEV_SG=y
+CONFIG_CHR_DEV_SCH=m
+CONFIG_SCSI_ENCLOSURE=m
+CONFIG_SCSI_MULTI_LUN=y
+CONFIG_SCSI_CONSTANTS=y
+CONFIG_SCSI_LOGGING=y
+CONFIG_SCSI_SPI_ATTRS=m
+CONFIG_SCSI_SAS_LIBSAS=m
+CONFIG_SCSI_SRP_ATTRS=m
+CONFIG_SCSI_SRP_TGT_ATTRS=y
+CONFIG_ISCSI_TCP=m
+CONFIG_LIBFCOE=m
+CONFIG_SCSI_DEBUG=m
+CONFIG_ZFCP=y
+CONFIG_SCSI_VIRTIO=m
+CONFIG_SCSI_DH=m
+CONFIG_SCSI_DH_RDAC=m
+CONFIG_SCSI_DH_HP_SW=m
+CONFIG_SCSI_DH_EMC=m
+CONFIG_SCSI_DH_ALUA=m
+CONFIG_SCSI_OSD_INITIATOR=m
+CONFIG_SCSI_OSD_ULD=m
+CONFIG_MD=y
+CONFIG_BLK_DEV_MD=y
+CONFIG_MD_LINEAR=m
+CONFIG_MD_RAID0=m
+CONFIG_MD_MULTIPATH=m
+CONFIG_MD_FAULTY=m
+CONFIG_BLK_DEV_DM=m
+CONFIG_DM_CRYPT=m
+CONFIG_DM_SNAPSHOT=m
+CONFIG_DM_MIRROR=m
+CONFIG_DM_RAID=m
+CONFIG_DM_LOG_USERSPACE=m
+CONFIG_DM_ZERO=m
+CONFIG_DM_MULTIPATH=m
+CONFIG_DM_MULTIPATH_QL=m
+CONFIG_DM_MULTIPATH_ST=m
+CONFIG_DM_DELAY=m
+CONFIG_DM_UEVENT=y
+CONFIG_DM_FLAKEY=m
+CONFIG_DM_VERITY=m
+CONFIG_DM_SWITCH=m
+CONFIG_NETDEVICES=y
+CONFIG_BONDING=m
+CONFIG_DUMMY=m
+CONFIG_EQUALIZER=m
+CONFIG_IFB=m
+CONFIG_MACVLAN=m
+CONFIG_MACVTAP=m
+CONFIG_VXLAN=m
+CONFIG_TUN=m
+CONFIG_VETH=m
+CONFIG_VIRTIO_NET=m
+CONFIG_NLMON=m
+CONFIG_VHOST_NET=m
+# CONFIG_NET_VENDOR_ARC is not set
+# CONFIG_NET_CADENCE is not set
+# CONFIG_NET_VENDOR_CHELSIO is not set
+# CONFIG_NET_VENDOR_INTEL is not set
+# CONFIG_NET_VENDOR_MARVELL is not set
+CONFIG_MLX4_EN=m
+# CONFIG_NET_VENDOR_NATSEMI is not set
+CONFIG_PPP=m
+CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
+CONFIG_PPP_MPPE=m
+CONFIG_PPPOE=m
+CONFIG_PPTP=m
+CONFIG_PPPOL2TP=m
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO is not set
+CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
+CONFIG_LEGACY_PTY_COUNT=0
+CONFIG_HW_RANDOM_VIRTIO=m
+CONFIG_RAW_DRIVER=m
+CONFIG_HANGCHECK_TIMER=m
+CONFIG_TN3270_FS=y
+CONFIG_WATCHDOG=y
+CONFIG_WATCHDOG_NOWAYOUT=y
+CONFIG_SOFT_WATCHDOG=m
+CONFIG_ZVM_WATCHDOG=m
+# CONFIG_HID is not set
+# CONFIG_USB_SUPPORT is not set
+CONFIG_INFINIBAND=m
+CONFIG_INFINIBAND_USER_ACCESS=m
+CONFIG_MLX4_INFINIBAND=m
+CONFIG_VIRTIO_BALLOON=m
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_POSIX_ACL=y
+CONFIG_EXT2_FS_SECURITY=y
+CONFIG_EXT2_FS_XIP=y
+CONFIG_EXT3_FS=y
+# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
+CONFIG_EXT3_FS_POSIX_ACL=y
+CONFIG_EXT3_FS_SECURITY=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_JBD_DEBUG=y
+CONFIG_JBD2_DEBUG=y
+CONFIG_JFS_FS=m
+CONFIG_JFS_POSIX_ACL=y
+CONFIG_JFS_SECURITY=y
+CONFIG_JFS_STATISTICS=y
+CONFIG_XFS_FS=m
+CONFIG_XFS_QUOTA=y
+CONFIG_XFS_POSIX_ACL=y
+CONFIG_XFS_RT=y
+CONFIG_GFS2_FS=m
+CONFIG_OCFS2_FS=m
+CONFIG_BTRFS_FS=m
+CONFIG_BTRFS_FS_POSIX_ACL=y
+CONFIG_NILFS2_FS=m
+CONFIG_FANOTIFY=y
+CONFIG_QUOTA_NETLINK_INTERFACE=y
+CONFIG_QFMT_V1=m
+CONFIG_QFMT_V2=m
+CONFIG_AUTOFS4_FS=m
+CONFIG_FUSE_FS=m
+CONFIG_CUSE=m
+CONFIG_FSCACHE=m
+CONFIG_CACHEFILES=m
+CONFIG_ISO9660_FS=y
+CONFIG_JOLIET=y
+CONFIG_ZISOFS=y
+CONFIG_UDF_FS=m
+CONFIG_MSDOS_FS=m
+CONFIG_VFAT_FS=m
+CONFIG_NTFS_FS=m
+CONFIG_NTFS_RW=y
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_HUGETLBFS=y
+CONFIG_CONFIGFS_FS=m
+CONFIG_ECRYPT_FS=m
+CONFIG_CRAMFS=m
+CONFIG_SQUASHFS=m
+CONFIG_SQUASHFS_XATTR=y
+CONFIG_SQUASHFS_LZO=y
+CONFIG_SQUASHFS_XZ=y
+CONFIG_ROMFS_FS=m
+CONFIG_NFS_FS=m
+CONFIG_NFS_V3_ACL=y
+CONFIG_NFS_V4=m
+CONFIG_NFS_SWAP=y
+CONFIG_NFSD=m
+CONFIG_NFSD_V3_ACL=y
+CONFIG_NFSD_V4=y
+CONFIG_NFSD_V4_SECURITY_LABEL=y
+CONFIG_CIFS=m
+CONFIG_CIFS_STATS=y
+CONFIG_CIFS_STATS2=y
+CONFIG_CIFS_WEAK_PW_HASH=y
+CONFIG_CIFS_UPCALL=y
+CONFIG_CIFS_XATTR=y
+CONFIG_CIFS_POSIX=y
+# CONFIG_CIFS_DEBUG is not set
+CONFIG_CIFS_DFS_UPCALL=y
+CONFIG_NLS_DEFAULT="utf8"
+CONFIG_NLS_CODEPAGE_437=m
+CONFIG_NLS_CODEPAGE_850=m
+CONFIG_NLS_ASCII=m
+CONFIG_NLS_ISO8859_1=m
+CONFIG_NLS_ISO8859_15=m
+CONFIG_NLS_UTF8=m
+CONFIG_DLM=m
+CONFIG_PRINTK_TIME=y
+CONFIG_DEBUG_INFO=y
+# CONFIG_ENABLE_MUST_CHECK is not set
+CONFIG_FRAME_WARN=1024
+CONFIG_UNUSED_SYMBOLS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_MEMORY_NOTIFIER_ERROR_INJECT=m
+CONFIG_TIMER_STATS=y
+CONFIG_RCU_TORTURE_TEST=m
+CONFIG_RCU_CPU_STALL_TIMEOUT=60
+CONFIG_NOTIFIER_ERROR_INJECTION=m
+CONFIG_CPU_NOTIFIER_ERROR_INJECT=m
+CONFIG_PM_NOTIFIER_ERROR_INJECT=m
+CONFIG_LATENCYTOP=y
+CONFIG_BLK_DEV_IO_TRACE=y
+# CONFIG_KPROBE_EVENT is not set
+CONFIG_LKDTM=m
+CONFIG_RBTREE_TEST=m
+CONFIG_INTERVAL_TREE_TEST=m
+CONFIG_ATOMIC64_SELFTEST=y
+# CONFIG_STRICT_DEVMEM is not set
+CONFIG_S390_PTDUMP=y
+CONFIG_ENCRYPTED_KEYS=m
+CONFIG_KEYS_DEBUG_PROC_KEYS=y
+CONFIG_SECURITY=y
+CONFIG_SECURITY_NETWORK=y
+CONFIG_SECURITY_SELINUX=y
+CONFIG_SECURITY_SELINUX_BOOTPARAM=y
+CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=0
+CONFIG_SECURITY_SELINUX_DISABLE=y
+CONFIG_IMA=y
+CONFIG_IMA_APPRAISE=y
+CONFIG_CRYPTO_USER=m
+# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
+CONFIG_CRYPTO_CRYPTD=m
+CONFIG_CRYPTO_TEST=m
+CONFIG_CRYPTO_CCM=m
+CONFIG_CRYPTO_GCM=m
+CONFIG_CRYPTO_CTS=m
+CONFIG_CRYPTO_LRW=m
+CONFIG_CRYPTO_PCBC=m
+CONFIG_CRYPTO_XTS=m
+CONFIG_CRYPTO_XCBC=m
+CONFIG_CRYPTO_VMAC=m
+CONFIG_CRYPTO_CRC32=m
+CONFIG_CRYPTO_MICHAEL_MIC=m
+CONFIG_CRYPTO_RMD128=m
+CONFIG_CRYPTO_RMD160=m
+CONFIG_CRYPTO_RMD256=m
+CONFIG_CRYPTO_RMD320=m
+CONFIG_CRYPTO_SHA512=m
+CONFIG_CRYPTO_TGR192=m
+CONFIG_CRYPTO_WP512=m
+CONFIG_CRYPTO_ANUBIS=m
+CONFIG_CRYPTO_BLOWFISH=m
+CONFIG_CRYPTO_CAMELLIA=m
+CONFIG_CRYPTO_CAST5=m
+CONFIG_CRYPTO_CAST6=m
+CONFIG_CRYPTO_FCRYPT=m
+CONFIG_CRYPTO_KHAZAD=m
+CONFIG_CRYPTO_SALSA20=m
+CONFIG_CRYPTO_SEED=m
+CONFIG_CRYPTO_SERPENT=m
+CONFIG_CRYPTO_TEA=m
+CONFIG_CRYPTO_TWOFISH=m
+CONFIG_CRYPTO_ZLIB=y
+CONFIG_CRYPTO_LZO=m
+CONFIG_CRYPTO_LZ4=m
+CONFIG_CRYPTO_LZ4HC=m
+CONFIG_CRYPTO_USER_API_HASH=m
+CONFIG_CRYPTO_USER_API_SKCIPHER=m
+CONFIG_ZCRYPT=m
+CONFIG_CRYPTO_SHA1_S390=m
+CONFIG_CRYPTO_SHA256_S390=m
+CONFIG_CRYPTO_SHA512_S390=m
+CONFIG_CRYPTO_DES_S390=m
+CONFIG_CRYPTO_AES_S390=m
+CONFIG_CRYPTO_GHASH_S390=m
+CONFIG_ASYMMETRIC_KEY_TYPE=m
+CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=m
+CONFIG_PUBLIC_KEY_ALGO_RSA=m
+CONFIG_X509_CERTIFICATE_PARSER=m
+CONFIG_CRC7=m
+CONFIG_CRC8=m
+CONFIG_XZ_DEC_X86=y
+CONFIG_XZ_DEC_POWERPC=y
+CONFIG_XZ_DEC_IA64=y
+CONFIG_XZ_DEC_ARM=y
+CONFIG_XZ_DEC_ARMTHUMB=y
+CONFIG_XZ_DEC_SPARC=y
+CONFIG_CORDIC=m
+CONFIG_CMM=m
+CONFIG_APPLDATA_BASE=y
+CONFIG_KVM=m
+CONFIG_KVM_S390_UCONTROL=y
diff --git a/arch/s390/configs/performance_defconfig b/arch/s390/configs/performance_defconfig
new file mode 100644
index 000000000000..91087b43e8fa
--- /dev/null
+++ b/arch/s390/configs/performance_defconfig
@@ -0,0 +1,610 @@
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_FHANDLE=y
+CONFIG_AUDIT=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_RCU_FAST_NO_HZ=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CPUSETS=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_RESOURCE_COUNTERS=y
+CONFIG_CGROUP_PERF=y
+CONFIG_BLK_CGROUP=y
+CONFIG_SCHED_AUTOGROUP=y
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_COMPAT_BRK is not set
+CONFIG_PROFILING=y
+CONFIG_OPROFILE=m
+CONFIG_KPROBES=y
+CONFIG_JUMP_LABEL=y
+CONFIG_MODULES=y
+CONFIG_MODULE_FORCE_LOAD=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_MODVERSIONS=y
+CONFIG_MODULE_SRCVERSION_ALL=y
+CONFIG_BLK_DEV_INTEGRITY=y
+CONFIG_BLK_DEV_THROTTLING=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_IBM_PARTITION=y
+CONFIG_BSD_DISKLABEL=y
+CONFIG_MINIX_SUBPARTITION=y
+CONFIG_SOLARIS_X86_PARTITION=y
+CONFIG_UNIXWARE_DISKLABEL=y
+CONFIG_CFQ_GROUP_IOSCHED=y
+CONFIG_DEFAULT_DEADLINE=y
+CONFIG_MARCH_Z9_109=y
+CONFIG_HZ_100=y
+CONFIG_MEMORY_HOTPLUG=y
+CONFIG_MEMORY_HOTREMOVE=y
+CONFIG_KSM=y
+CONFIG_TRANSPARENT_HUGEPAGE=y
+CONFIG_PCI=y
+CONFIG_HOTPLUG_PCI=y
+CONFIG_HOTPLUG_PCI_S390=y
+CONFIG_CHSC_SCH=y
+CONFIG_CRASH_DUMP=y
+CONFIG_ZFCPDUMP=y
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+CONFIG_BINFMT_MISC=m
+CONFIG_HIBERNATION=y
+CONFIG_PACKET=y
+CONFIG_PACKET_DIAG=m
+CONFIG_UNIX=y
+CONFIG_UNIX_DIAG=m
+CONFIG_XFRM_USER=m
+CONFIG_NET_KEY=m
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_ADVANCED_ROUTER=y
+CONFIG_IP_MULTIPLE_TABLES=y
+CONFIG_IP_ROUTE_MULTIPATH=y
+CONFIG_IP_ROUTE_VERBOSE=y
+CONFIG_NET_IPIP=m
+CONFIG_NET_IPGRE_DEMUX=m
+CONFIG_NET_IPGRE=m
+CONFIG_NET_IPGRE_BROADCAST=y
+CONFIG_IP_MROUTE=y
+CONFIG_IP_MROUTE_MULTIPLE_TABLES=y
+CONFIG_IP_PIMSM_V1=y
+CONFIG_IP_PIMSM_V2=y
+CONFIG_SYN_COOKIES=y
+CONFIG_NET_IPVTI=m
+CONFIG_INET_AH=m
+CONFIG_INET_ESP=m
+CONFIG_INET_IPCOMP=m
+CONFIG_INET_XFRM_MODE_TRANSPORT=m
+CONFIG_INET_XFRM_MODE_TUNNEL=m
+CONFIG_INET_XFRM_MODE_BEET=m
+CONFIG_INET_DIAG=m
+CONFIG_INET_UDP_DIAG=m
+CONFIG_TCP_CONG_ADVANCED=y
+CONFIG_TCP_CONG_HSTCP=m
+CONFIG_TCP_CONG_HYBLA=m
+CONFIG_TCP_CONG_SCALABLE=m
+CONFIG_TCP_CONG_LP=m
+CONFIG_TCP_CONG_VENO=m
+CONFIG_TCP_CONG_YEAH=m
+CONFIG_TCP_CONG_ILLINOIS=m
+CONFIG_IPV6=y
+CONFIG_IPV6_PRIVACY=y
+CONFIG_IPV6_ROUTER_PREF=y
+CONFIG_INET6_AH=m
+CONFIG_INET6_ESP=m
+CONFIG_INET6_IPCOMP=m
+CONFIG_IPV6_MIP6=m
+CONFIG_INET6_XFRM_MODE_TRANSPORT=m
+CONFIG_INET6_XFRM_MODE_TUNNEL=m
+CONFIG_INET6_XFRM_MODE_BEET=m
+CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION=m
+CONFIG_IPV6_SIT=m
+CONFIG_IPV6_GRE=m
+CONFIG_IPV6_MULTIPLE_TABLES=y
+CONFIG_IPV6_SUBTREES=y
+CONFIG_NETFILTER=y
+CONFIG_NF_CONNTRACK=m
+CONFIG_NF_CONNTRACK_SECMARK=y
+CONFIG_NF_CONNTRACK_EVENTS=y
+CONFIG_NF_CONNTRACK_TIMEOUT=y
+CONFIG_NF_CONNTRACK_TIMESTAMP=y
+CONFIG_NF_CT_PROTO_DCCP=m
+CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CONNTRACK_AMANDA=m
+CONFIG_NF_CONNTRACK_FTP=m
+CONFIG_NF_CONNTRACK_H323=m
+CONFIG_NF_CONNTRACK_IRC=m
+CONFIG_NF_CONNTRACK_NETBIOS_NS=m
+CONFIG_NF_CONNTRACK_SNMP=m
+CONFIG_NF_CONNTRACK_PPTP=m
+CONFIG_NF_CONNTRACK_SANE=m
+CONFIG_NF_CONNTRACK_SIP=m
+CONFIG_NF_CONNTRACK_TFTP=m
+CONFIG_NF_CT_NETLINK=m
+CONFIG_NF_CT_NETLINK_TIMEOUT=m
+CONFIG_NETFILTER_TPROXY=m
+CONFIG_NETFILTER_XT_SET=m
+CONFIG_NETFILTER_XT_TARGET_AUDIT=m
+CONFIG_NETFILTER_XT_TARGET_CHECKSUM=m
+CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
+CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
+CONFIG_NETFILTER_XT_TARGET_CONNSECMARK=m
+CONFIG_NETFILTER_XT_TARGET_CT=m
+CONFIG_NETFILTER_XT_TARGET_DSCP=m
+CONFIG_NETFILTER_XT_TARGET_HMARK=m
+CONFIG_NETFILTER_XT_TARGET_IDLETIMER=m
+CONFIG_NETFILTER_XT_TARGET_LOG=m
+CONFIG_NETFILTER_XT_TARGET_MARK=m
+CONFIG_NETFILTER_XT_TARGET_NFLOG=m
+CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
+CONFIG_NETFILTER_XT_TARGET_TEE=m
+CONFIG_NETFILTER_XT_TARGET_TPROXY=m
+CONFIG_NETFILTER_XT_TARGET_TRACE=m
+CONFIG_NETFILTER_XT_TARGET_SECMARK=m
+CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
+CONFIG_NETFILTER_XT_TARGET_TCPOPTSTRIP=m
+CONFIG_NETFILTER_XT_MATCH_ADDRTYPE=m
+CONFIG_NETFILTER_XT_MATCH_BPF=m
+CONFIG_NETFILTER_XT_MATCH_CLUSTER=m
+CONFIG_NETFILTER_XT_MATCH_COMMENT=m
+CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
+CONFIG_NETFILTER_XT_MATCH_CONNLABEL=m
+CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
+CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
+CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
+CONFIG_NETFILTER_XT_MATCH_CPU=m
+CONFIG_NETFILTER_XT_MATCH_DCCP=m
+CONFIG_NETFILTER_XT_MATCH_DEVGROUP=m
+CONFIG_NETFILTER_XT_MATCH_DSCP=m
+CONFIG_NETFILTER_XT_MATCH_ESP=m
+CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
+CONFIG_NETFILTER_XT_MATCH_HELPER=m
+CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
+CONFIG_NETFILTER_XT_MATCH_IPVS=m
+CONFIG_NETFILTER_XT_MATCH_LENGTH=m
+CONFIG_NETFILTER_XT_MATCH_LIMIT=m
+CONFIG_NETFILTER_XT_MATCH_MAC=m
+CONFIG_NETFILTER_XT_MATCH_MARK=m
+CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
+CONFIG_NETFILTER_XT_MATCH_NFACCT=m
+CONFIG_NETFILTER_XT_MATCH_OSF=m
+CONFIG_NETFILTER_XT_MATCH_OWNER=m
+CONFIG_NETFILTER_XT_MATCH_POLICY=m
+CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m
+CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
+CONFIG_NETFILTER_XT_MATCH_QUOTA=m
+CONFIG_NETFILTER_XT_MATCH_RATEEST=m
+CONFIG_NETFILTER_XT_MATCH_REALM=m
+CONFIG_NETFILTER_XT_MATCH_RECENT=m
+CONFIG_NETFILTER_XT_MATCH_SOCKET=m
+CONFIG_NETFILTER_XT_MATCH_STATE=m
+CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
+CONFIG_NETFILTER_XT_MATCH_STRING=m
+CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
+CONFIG_NETFILTER_XT_MATCH_TIME=m
+CONFIG_NETFILTER_XT_MATCH_U32=m
+CONFIG_IP_SET=m
+CONFIG_IP_SET_BITMAP_IP=m
+CONFIG_IP_SET_BITMAP_IPMAC=m
+CONFIG_IP_SET_BITMAP_PORT=m
+CONFIG_IP_SET_HASH_IP=m
+CONFIG_IP_SET_HASH_IPPORT=m
+CONFIG_IP_SET_HASH_IPPORTIP=m
+CONFIG_IP_SET_HASH_IPPORTNET=m
+CONFIG_IP_SET_HASH_NET=m
+CONFIG_IP_SET_HASH_NETPORT=m
+CONFIG_IP_SET_HASH_NETIFACE=m
+CONFIG_IP_SET_LIST_SET=m
+CONFIG_IP_VS=m
+CONFIG_IP_VS_PROTO_TCP=y
+CONFIG_IP_VS_PROTO_UDP=y
+CONFIG_IP_VS_PROTO_ESP=y
+CONFIG_IP_VS_PROTO_AH=y
+CONFIG_IP_VS_RR=m
+CONFIG_IP_VS_WRR=m
+CONFIG_IP_VS_LC=m
+CONFIG_IP_VS_WLC=m
+CONFIG_IP_VS_LBLC=m
+CONFIG_IP_VS_LBLCR=m
+CONFIG_IP_VS_DH=m
+CONFIG_IP_VS_SH=m
+CONFIG_IP_VS_SED=m
+CONFIG_IP_VS_NQ=m
+CONFIG_IP_VS_FTP=m
+CONFIG_IP_VS_PE_SIP=m
+CONFIG_NF_CONNTRACK_IPV4=m
+# CONFIG_NF_CONNTRACK_PROC_COMPAT is not set
+CONFIG_IP_NF_IPTABLES=m
+CONFIG_IP_NF_MATCH_AH=m
+CONFIG_IP_NF_MATCH_ECN=m
+CONFIG_IP_NF_MATCH_RPFILTER=m
+CONFIG_IP_NF_MATCH_TTL=m
+CONFIG_IP_NF_FILTER=m
+CONFIG_IP_NF_TARGET_REJECT=m
+CONFIG_IP_NF_TARGET_ULOG=m
+CONFIG_NF_NAT_IPV4=m
+CONFIG_IP_NF_TARGET_MASQUERADE=m
+CONFIG_IP_NF_TARGET_NETMAP=m
+CONFIG_IP_NF_TARGET_REDIRECT=m
+CONFIG_IP_NF_MANGLE=m
+CONFIG_IP_NF_TARGET_CLUSTERIP=m
+CONFIG_IP_NF_TARGET_ECN=m
+CONFIG_IP_NF_TARGET_TTL=m
+CONFIG_IP_NF_RAW=m
+CONFIG_IP_NF_SECURITY=m
+CONFIG_IP_NF_ARPTABLES=m
+CONFIG_IP_NF_ARPFILTER=m
+CONFIG_IP_NF_ARP_MANGLE=m
+CONFIG_NF_CONNTRACK_IPV6=m
+CONFIG_IP6_NF_IPTABLES=m
+CONFIG_IP6_NF_MATCH_AH=m
+CONFIG_IP6_NF_MATCH_EUI64=m
+CONFIG_IP6_NF_MATCH_FRAG=m
+CONFIG_IP6_NF_MATCH_OPTS=m
+CONFIG_IP6_NF_MATCH_HL=m
+CONFIG_IP6_NF_MATCH_IPV6HEADER=m
+CONFIG_IP6_NF_MATCH_MH=m
+CONFIG_IP6_NF_MATCH_RPFILTER=m
+CONFIG_IP6_NF_MATCH_RT=m
+CONFIG_IP6_NF_TARGET_HL=m
+CONFIG_IP6_NF_FILTER=m
+CONFIG_IP6_NF_TARGET_REJECT=m
+CONFIG_IP6_NF_MANGLE=m
+CONFIG_IP6_NF_RAW=m
+CONFIG_IP6_NF_SECURITY=m
+CONFIG_NF_NAT_IPV6=m
+CONFIG_IP6_NF_TARGET_MASQUERADE=m
+CONFIG_IP6_NF_TARGET_NPT=m
+CONFIG_NET_SCTPPROBE=m
+CONFIG_RDS=m
+CONFIG_RDS_RDMA=m
+CONFIG_RDS_TCP=m
+CONFIG_L2TP=m
+CONFIG_L2TP_DEBUGFS=m
+CONFIG_L2TP_V3=y
+CONFIG_L2TP_IP=m
+CONFIG_L2TP_ETH=m
+CONFIG_BRIDGE=m
+CONFIG_VLAN_8021Q=m
+CONFIG_VLAN_8021Q_GVRP=y
+CONFIG_NET_SCHED=y
+CONFIG_NET_SCH_CBQ=m
+CONFIG_NET_SCH_HTB=m
+CONFIG_NET_SCH_HFSC=m
+CONFIG_NET_SCH_PRIO=m
+CONFIG_NET_SCH_MULTIQ=m
+CONFIG_NET_SCH_RED=m
+CONFIG_NET_SCH_SFB=m
+CONFIG_NET_SCH_SFQ=m
+CONFIG_NET_SCH_TEQL=m
+CONFIG_NET_SCH_TBF=m
+CONFIG_NET_SCH_GRED=m
+CONFIG_NET_SCH_DSMARK=m
+CONFIG_NET_SCH_NETEM=m
+CONFIG_NET_SCH_DRR=m
+CONFIG_NET_SCH_MQPRIO=m
+CONFIG_NET_SCH_CHOKE=m
+CONFIG_NET_SCH_QFQ=m
+CONFIG_NET_SCH_CODEL=m
+CONFIG_NET_SCH_FQ_CODEL=m
+CONFIG_NET_SCH_INGRESS=m
+CONFIG_NET_SCH_PLUG=m
+CONFIG_NET_CLS_BASIC=m
+CONFIG_NET_CLS_TCINDEX=m
+CONFIG_NET_CLS_ROUTE4=m
+CONFIG_NET_CLS_FW=m
+CONFIG_NET_CLS_U32=m
+CONFIG_CLS_U32_PERF=y
+CONFIG_CLS_U32_MARK=y
+CONFIG_NET_CLS_RSVP=m
+CONFIG_NET_CLS_RSVP6=m
+CONFIG_NET_CLS_FLOW=m
+CONFIG_NET_CLS_CGROUP=y
+CONFIG_NET_CLS_ACT=y
+CONFIG_NET_ACT_POLICE=m
+CONFIG_NET_ACT_GACT=m
+CONFIG_GACT_PROB=y
+CONFIG_NET_ACT_MIRRED=m
+CONFIG_NET_ACT_IPT=m
+CONFIG_NET_ACT_NAT=m
+CONFIG_NET_ACT_PEDIT=m
+CONFIG_NET_ACT_SIMP=m
+CONFIG_NET_ACT_SKBEDIT=m
+CONFIG_NET_ACT_CSUM=m
+CONFIG_DNS_RESOLVER=y
+CONFIG_BPF_JIT=y
+CONFIG_NET_PKTGEN=m
+CONFIG_NET_TCPPROBE=m
+CONFIG_DEVTMPFS=y
+CONFIG_CONNECTOR=y
+CONFIG_BLK_DEV_LOOP=m
+CONFIG_BLK_DEV_CRYPTOLOOP=m
+CONFIG_BLK_DEV_NBD=m
+CONFIG_BLK_DEV_OSD=m
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=32768
+CONFIG_BLK_DEV_XIP=y
+CONFIG_CDROM_PKTCDVD=m
+CONFIG_ATA_OVER_ETH=m
+CONFIG_VIRTIO_BLK=y
+CONFIG_ENCLOSURE_SERVICES=m
+CONFIG_RAID_ATTRS=m
+CONFIG_SCSI=y
+CONFIG_SCSI_TGT=m
+CONFIG_BLK_DEV_SD=y
+CONFIG_CHR_DEV_ST=m
+CONFIG_CHR_DEV_OSST=m
+CONFIG_BLK_DEV_SR=m
+CONFIG_CHR_DEV_SG=y
+CONFIG_CHR_DEV_SCH=m
+CONFIG_SCSI_ENCLOSURE=m
+CONFIG_SCSI_MULTI_LUN=y
+CONFIG_SCSI_CONSTANTS=y
+CONFIG_SCSI_LOGGING=y
+CONFIG_SCSI_SPI_ATTRS=m
+CONFIG_SCSI_SAS_LIBSAS=m
+CONFIG_SCSI_SRP_ATTRS=m
+CONFIG_SCSI_SRP_TGT_ATTRS=y
+CONFIG_ISCSI_TCP=m
+CONFIG_LIBFCOE=m
+CONFIG_SCSI_DEBUG=m
+CONFIG_ZFCP=y
+CONFIG_SCSI_VIRTIO=m
+CONFIG_SCSI_DH=m
+CONFIG_SCSI_DH_RDAC=m
+CONFIG_SCSI_DH_HP_SW=m
+CONFIG_SCSI_DH_EMC=m
+CONFIG_SCSI_DH_ALUA=m
+CONFIG_SCSI_OSD_INITIATOR=m
+CONFIG_SCSI_OSD_ULD=m
+CONFIG_MD=y
+CONFIG_BLK_DEV_MD=y
+CONFIG_MD_LINEAR=m
+CONFIG_MD_RAID0=m
+CONFIG_MD_MULTIPATH=m
+CONFIG_MD_FAULTY=m
+CONFIG_BLK_DEV_DM=m
+CONFIG_DM_CRYPT=m
+CONFIG_DM_SNAPSHOT=m
+CONFIG_DM_MIRROR=m
+CONFIG_DM_RAID=m
+CONFIG_DM_LOG_USERSPACE=m
+CONFIG_DM_ZERO=m
+CONFIG_DM_MULTIPATH=m
+CONFIG_DM_MULTIPATH_QL=m
+CONFIG_DM_MULTIPATH_ST=m
+CONFIG_DM_DELAY=m
+CONFIG_DM_UEVENT=y
+CONFIG_DM_FLAKEY=m
+CONFIG_DM_VERITY=m
+CONFIG_DM_SWITCH=m
+CONFIG_NETDEVICES=y
+CONFIG_BONDING=m
+CONFIG_DUMMY=m
+CONFIG_EQUALIZER=m
+CONFIG_IFB=m
+CONFIG_MACVLAN=m
+CONFIG_MACVTAP=m
+CONFIG_VXLAN=m
+CONFIG_TUN=m
+CONFIG_VETH=m
+CONFIG_VIRTIO_NET=m
+CONFIG_NLMON=m
+CONFIG_VHOST_NET=m
+# CONFIG_NET_VENDOR_ARC is not set
+# CONFIG_NET_CADENCE is not set
+# CONFIG_NET_VENDOR_CHELSIO is not set
+# CONFIG_NET_VENDOR_INTEL is not set
+# CONFIG_NET_VENDOR_MARVELL is not set
+CONFIG_MLX4_EN=m
+# CONFIG_NET_VENDOR_NATSEMI is not set
+CONFIG_PPP=m
+CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
+CONFIG_PPP_MPPE=m
+CONFIG_PPPOE=m
+CONFIG_PPTP=m
+CONFIG_PPPOL2TP=m
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO is not set
+CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
+CONFIG_LEGACY_PTY_COUNT=0
+CONFIG_HW_RANDOM_VIRTIO=m
+CONFIG_RAW_DRIVER=m
+CONFIG_HANGCHECK_TIMER=m
+CONFIG_TN3270_FS=y
+CONFIG_WATCHDOG=y
+CONFIG_WATCHDOG_NOWAYOUT=y
+CONFIG_SOFT_WATCHDOG=m
+CONFIG_ZVM_WATCHDOG=m
+# CONFIG_HID is not set
+# CONFIG_USB_SUPPORT is not set
+CONFIG_INFINIBAND=m
+CONFIG_INFINIBAND_USER_ACCESS=m
+CONFIG_MLX4_INFINIBAND=m
+CONFIG_VIRTIO_BALLOON=m
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_POSIX_ACL=y
+CONFIG_EXT2_FS_SECURITY=y
+CONFIG_EXT2_FS_XIP=y
+CONFIG_EXT3_FS=y
+# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
+CONFIG_EXT3_FS_POSIX_ACL=y
+CONFIG_EXT3_FS_SECURITY=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_JBD_DEBUG=y
+CONFIG_JBD2_DEBUG=y
+CONFIG_JFS_FS=m
+CONFIG_JFS_POSIX_ACL=y
+CONFIG_JFS_SECURITY=y
+CONFIG_JFS_STATISTICS=y
+CONFIG_XFS_FS=m
+CONFIG_XFS_QUOTA=y
+CONFIG_XFS_POSIX_ACL=y
+CONFIG_XFS_RT=y
+CONFIG_GFS2_FS=m
+CONFIG_OCFS2_FS=m
+CONFIG_BTRFS_FS=m
+CONFIG_BTRFS_FS_POSIX_ACL=y
+CONFIG_NILFS2_FS=m
+CONFIG_FANOTIFY=y
+CONFIG_QUOTA_NETLINK_INTERFACE=y
+CONFIG_QFMT_V1=m
+CONFIG_QFMT_V2=m
+CONFIG_AUTOFS4_FS=m
+CONFIG_FUSE_FS=m
+CONFIG_CUSE=m
+CONFIG_FSCACHE=m
+CONFIG_CACHEFILES=m
+CONFIG_ISO9660_FS=y
+CONFIG_JOLIET=y
+CONFIG_ZISOFS=y
+CONFIG_UDF_FS=m
+CONFIG_MSDOS_FS=m
+CONFIG_VFAT_FS=m
+CONFIG_NTFS_FS=m
+CONFIG_NTFS_RW=y
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_HUGETLBFS=y
+CONFIG_CONFIGFS_FS=m
+CONFIG_ECRYPT_FS=m
+CONFIG_CRAMFS=m
+CONFIG_SQUASHFS=m
+CONFIG_SQUASHFS_XATTR=y
+CONFIG_SQUASHFS_LZO=y
+CONFIG_SQUASHFS_XZ=y
+CONFIG_ROMFS_FS=m
+CONFIG_NFS_FS=m
+CONFIG_NFS_V3_ACL=y
+CONFIG_NFS_V4=m
+CONFIG_NFS_SWAP=y
+CONFIG_NFSD=m
+CONFIG_NFSD_V3_ACL=y
+CONFIG_NFSD_V4=y
+CONFIG_NFSD_V4_SECURITY_LABEL=y
+CONFIG_CIFS=m
+CONFIG_CIFS_STATS=y
+CONFIG_CIFS_STATS2=y
+CONFIG_CIFS_WEAK_PW_HASH=y
+CONFIG_CIFS_UPCALL=y
+CONFIG_CIFS_XATTR=y
+CONFIG_CIFS_POSIX=y
+# CONFIG_CIFS_DEBUG is not set
+CONFIG_CIFS_DFS_UPCALL=y
+CONFIG_NLS_DEFAULT="utf8"
+CONFIG_NLS_CODEPAGE_437=m
+CONFIG_NLS_CODEPAGE_850=m
+CONFIG_NLS_ASCII=m
+CONFIG_NLS_ISO8859_1=m
+CONFIG_NLS_ISO8859_15=m
+CONFIG_NLS_UTF8=m
+CONFIG_DLM=m
+CONFIG_PRINTK_TIME=y
+CONFIG_DEBUG_INFO=y
+# CONFIG_ENABLE_MUST_CHECK is not set
+CONFIG_FRAME_WARN=1024
+CONFIG_UNUSED_SYMBOLS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_TIMER_STATS=y
+CONFIG_RCU_TORTURE_TEST=m
+CONFIG_RCU_CPU_STALL_TIMEOUT=60
+CONFIG_LATENCYTOP=y
+CONFIG_BLK_DEV_IO_TRACE=y
+# CONFIG_KPROBE_EVENT is not set
+CONFIG_LKDTM=m
+CONFIG_ATOMIC64_SELFTEST=y
+# CONFIG_STRICT_DEVMEM is not set
+CONFIG_S390_PTDUMP=y
+CONFIG_ENCRYPTED_KEYS=m
+CONFIG_KEYS_DEBUG_PROC_KEYS=y
+CONFIG_SECURITY=y
+CONFIG_SECURITY_NETWORK=y
+CONFIG_SECURITY_SELINUX=y
+CONFIG_SECURITY_SELINUX_BOOTPARAM=y
+CONFIG_SECURITY_SELINUX_BOOTPARAM_VALUE=0
+CONFIG_SECURITY_SELINUX_DISABLE=y
+CONFIG_IMA=y
+CONFIG_IMA_APPRAISE=y
+CONFIG_CRYPTO_USER=m
+# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
+CONFIG_CRYPTO_CRYPTD=m
+CONFIG_CRYPTO_TEST=m
+CONFIG_CRYPTO_CCM=m
+CONFIG_CRYPTO_GCM=m
+CONFIG_CRYPTO_CTS=m
+CONFIG_CRYPTO_LRW=m
+CONFIG_CRYPTO_PCBC=m
+CONFIG_CRYPTO_XTS=m
+CONFIG_CRYPTO_XCBC=m
+CONFIG_CRYPTO_VMAC=m
+CONFIG_CRYPTO_CRC32=m
+CONFIG_CRYPTO_MICHAEL_MIC=m
+CONFIG_CRYPTO_RMD128=m
+CONFIG_CRYPTO_RMD160=m
+CONFIG_CRYPTO_RMD256=m
+CONFIG_CRYPTO_RMD320=m
+CONFIG_CRYPTO_SHA512=m
+CONFIG_CRYPTO_TGR192=m
+CONFIG_CRYPTO_WP512=m
+CONFIG_CRYPTO_ANUBIS=m
+CONFIG_CRYPTO_BLOWFISH=m
+CONFIG_CRYPTO_CAMELLIA=m
+CONFIG_CRYPTO_CAST5=m
+CONFIG_CRYPTO_CAST6=m
+CONFIG_CRYPTO_FCRYPT=m
+CONFIG_CRYPTO_KHAZAD=m
+CONFIG_CRYPTO_SALSA20=m
+CONFIG_CRYPTO_SEED=m
+CONFIG_CRYPTO_SERPENT=m
+CONFIG_CRYPTO_TEA=m
+CONFIG_CRYPTO_TWOFISH=m
+CONFIG_CRYPTO_ZLIB=y
+CONFIG_CRYPTO_LZO=m
+CONFIG_CRYPTO_LZ4=m
+CONFIG_CRYPTO_LZ4HC=m
+CONFIG_CRYPTO_USER_API_HASH=m
+CONFIG_CRYPTO_USER_API_SKCIPHER=m
+CONFIG_ZCRYPT=m
+CONFIG_CRYPTO_SHA1_S390=m
+CONFIG_CRYPTO_SHA256_S390=m
+CONFIG_CRYPTO_SHA512_S390=m
+CONFIG_CRYPTO_DES_S390=m
+CONFIG_CRYPTO_AES_S390=m
+CONFIG_CRYPTO_GHASH_S390=m
+CONFIG_ASYMMETRIC_KEY_TYPE=m
+CONFIG_ASYMMETRIC_PUBLIC_KEY_SUBTYPE=m
+CONFIG_PUBLIC_KEY_ALGO_RSA=m
+CONFIG_X509_CERTIFICATE_PARSER=m
+CONFIG_CRC7=m
+CONFIG_CRC8=m
+CONFIG_XZ_DEC_X86=y
+CONFIG_XZ_DEC_POWERPC=y
+CONFIG_XZ_DEC_IA64=y
+CONFIG_XZ_DEC_ARM=y
+CONFIG_XZ_DEC_ARMTHUMB=y
+CONFIG_XZ_DEC_SPARC=y
+CONFIG_CORDIC=m
+CONFIG_CMM=m
+CONFIG_APPLDATA_BASE=y
+CONFIG_KVM=m
+CONFIG_KVM_S390_UCONTROL=y
diff --git a/arch/s390/configs/zfcpdump_defconfig b/arch/s390/configs/zfcpdump_defconfig
new file mode 100644
index 000000000000..d725c4d956e4
--- /dev/null
+++ b/arch/s390/configs/zfcpdump_defconfig
@@ -0,0 +1,86 @@
+# CONFIG_SWAP is not set
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_RCU_FAST_NO_HZ=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+# CONFIG_COMPAT_BRK is not set
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_IBM_PARTITION=y
+CONFIG_DEFAULT_DEADLINE=y
+CONFIG_MARCH_Z9_109=y
+# CONFIG_COMPAT is not set
+CONFIG_NR_CPUS=2
+# CONFIG_HOTPLUG_CPU is not set
+CONFIG_HZ_100=y
+# CONFIG_COMPACTION is not set
+# CONFIG_MIGRATION is not set
+# CONFIG_CHECK_STACK is not set
+# CONFIG_CHSC_SCH is not set
+# CONFIG_SCM_BUS is not set
+CONFIG_CRASH_DUMP=y
+CONFIG_ZFCPDUMP=y
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+# CONFIG_SECCOMP is not set
+# CONFIG_IUCV is not set
+CONFIG_ATM=y
+CONFIG_ATM_LANE=y
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+# CONFIG_FIRMWARE_IN_KERNEL is not set
+# CONFIG_BLK_DEV_XPRAM is not set
+# CONFIG_DCSSBLK is not set
+# CONFIG_DASD is not set
+CONFIG_ENCLOSURE_SERVICES=y
+CONFIG_SCSI=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_SCSI_ENCLOSURE=y
+CONFIG_SCSI_MULTI_LUN=y
+CONFIG_SCSI_CONSTANTS=y
+CONFIG_SCSI_LOGGING=y
+CONFIG_SCSI_SRP_ATTRS=y
+CONFIG_ZFCP=y
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO is not set
+# CONFIG_HVC_IUCV is not set
+CONFIG_RAW_DRIVER=y
+# CONFIG_SCLP_ASYNC is not set
+# CONFIG_HMC_DRV is not set
+# CONFIG_S390_TAPE is not set
+# CONFIG_VMCP is not set
+# CONFIG_MONWRITER is not set
+# CONFIG_S390_VMUR is not set
+# CONFIG_HID is not set
+CONFIG_MEMSTICK=y
+CONFIG_MEMSTICK_DEBUG=y
+CONFIG_MEMSTICK_UNSAFE_RESUME=y
+CONFIG_MSPRO_BLOCK=y
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_EXT2_FS=y
+CONFIG_EXT3_FS=y
+# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+# CONFIG_INOTIFY_USER is not set
+CONFIG_CONFIGFS_FS=y
+CONFIG_PRINTK_TIME=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_FS=y
+CONFIG_DEBUG_KERNEL=y
+# CONFIG_SCHED_DEBUG is not set
+CONFIG_RCU_CPU_STALL_TIMEOUT=60
+# CONFIG_FTRACE is not set
+# CONFIG_STRICT_DEVMEM is not set
+CONFIG_XZ_DEC_X86=y
+CONFIG_XZ_DEC_POWERPC=y
+CONFIG_XZ_DEC_IA64=y
+CONFIG_XZ_DEC_ARM=y
+CONFIG_XZ_DEC_ARMTHUMB=y
+CONFIG_XZ_DEC_SPARC=y
+# CONFIG_PFAULT is not set
+# CONFIG_S390_HYPFS_FS is not set
+# CONFIG_VIRTUALIZATION is not set
+# CONFIG_S390_GUEST is not set
-- 
cgit 


From a2c0844965534e2276e5b0c0dc8a0952658412a4 Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Thu, 5 Sep 2013 08:58:19 +0200
Subject: Update default configuration

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/defconfig | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/s390/defconfig b/arch/s390/defconfig
index d204c65bf722..33f57514f424 100644
--- a/arch/s390/defconfig
+++ b/arch/s390/defconfig
@@ -38,13 +38,14 @@ CONFIG_MODULE_UNLOAD=y
 CONFIG_MODVERSIONS=y
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_IBM_PARTITION=y
-# CONFIG_EFI_PARTITION is not set
 CONFIG_DEFAULT_DEADLINE=y
+CONFIG_MARCH_Z196=y
 CONFIG_HZ_100=y
 CONFIG_MEMORY_HOTPLUG=y
 CONFIG_MEMORY_HOTREMOVE=y
 CONFIG_KSM=y
 CONFIG_TRANSPARENT_HUGEPAGE=y
+CONFIG_CMA=y
 CONFIG_CRASH_DUMP=y
 CONFIG_BINFMT_MISC=m
 CONFIG_HIBERNATION=y
@@ -152,6 +153,7 @@ CONFIG_CRYPTO_CMAC=m
 CONFIG_CRYPTO_XCBC=m
 CONFIG_CRYPTO_VMAC=m
 CONFIG_CRYPTO_CRC32=m
+CONFIG_CRYPTO_CRCT10DIF=m
 CONFIG_CRYPTO_MD4=m
 CONFIG_CRYPTO_MICHAEL_MIC=m
 CONFIG_CRYPTO_RMD128=m
-- 
cgit 


From 1f1dcbd4f23bd1f3bef7c000bfe46e85e4b66726 Mon Sep 17 00:00:00 2001
From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Tue, 22 Oct 2013 15:17:19 +0200
Subject: s390/pci: message cleanup

Cleanup arch specific pci messages. Remove unhelpful messages and
replace others with entries in the debugfs.

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/pci/pci.c                | 21 ++++++---------------
 arch/s390/pci/pci_clp.c            | 33 ++++++++++++++++++---------------
 arch/s390/pci/pci_dma.c            | 18 ++++++++----------
 arch/s390/pci/pci_event.c          | 35 ++++++++++++++---------------------
 drivers/pci/hotplug/s390_pci_hpc.c |  6 ++----
 5 files changed, 48 insertions(+), 65 deletions(-)

diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 206186c44ade..fd6d6ce79439 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -136,7 +136,6 @@ static int zpci_set_airq(struct zpci_dev *zdev)
 	fib->aisbo = zdev->aisb & 63;
 
 	rc = zpci_mod_fc(req, fib);
-	pr_debug("%s mpcifc returned noi: %d\n", __func__, fib->noi);
 
 	free_page((unsigned long) fib);
 	return rc;
@@ -424,7 +423,6 @@ int arch_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
 	struct msi_msg msg;
 	int rc;
 
-	pr_debug("%s: requesting %d MSI-X interrupts...", __func__, nvec);
 	if (type != PCI_CAP_ID_MSIX && type != PCI_CAP_ID_MSI)
 		return -EINVAL;
 	msi_vecs = min(nvec, ZPCI_MSI_VEC_MAX);
@@ -489,7 +487,6 @@ out_msi:
 out_si:
 	airq_iv_free_bit(zpci_aisb_iv, aisb);
 out:
-	dev_err(&pdev->dev, "register MSI failed with: %d\n", rc);
 	return rc;
 }
 
@@ -499,14 +496,10 @@ void arch_teardown_msi_irqs(struct pci_dev *pdev)
 	struct msi_desc *msi;
 	int rc;
 
-	pr_info("%s: on pdev: %p\n", __func__, pdev);
-
 	/* Disable adapter interrupts */
 	rc = zpci_clear_airq(zdev);
-	if (rc) {
-		dev_err(&pdev->dev, "deregister MSI failed with: %d\n", rc);
+	if (rc)
 		return;
-	}
 
 	/* Release MSI interrupts */
 	list_for_each_entry(msi, &pdev->msi_list, list) {
@@ -625,8 +618,11 @@ static struct resource *zpci_alloc_bus_resource(unsigned long start, unsigned lo
 	r->name = name;
 
 	rc = request_resource(&iomem_resource, r);
-	if (rc)
-		pr_debug("request resource %pR failed\n", r);
+	if (rc) {
+		kfree(r->name);
+		kfree(r);
+		return ERR_PTR(-ENOMEM);
+	}
 	return r;
 }
 
@@ -822,7 +818,6 @@ int zpci_enable_device(struct zpci_dev *zdev)
 	rc = clp_enable_fh(zdev, ZPCI_NR_DMA_SPACES);
 	if (rc)
 		goto out;
-	pr_info("Enabled fh: 0x%x fid: 0x%x\n", zdev->fh, zdev->fid);
 
 	rc = zpci_dma_init_device(zdev);
 	if (rc)
@@ -942,10 +937,6 @@ static int __init pci_base_init(void)
 	    || !test_facility(71) || !test_facility(72))
 		return 0;
 
-	pr_info("Probing PCI hardware: PCI:%d  SID:%d  AEN:%d\n",
-		test_facility(69), test_facility(70),
-		test_facility(71));
-
 	rc = zpci_debug_init();
 	if (rc)
 		goto out;
diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c
index 475563c3d1e4..84147984224a 100644
--- a/arch/s390/pci/pci_clp.c
+++ b/arch/s390/pci/pci_clp.c
@@ -16,6 +16,16 @@
 #include <asm/pci_debug.h>
 #include <asm/pci_clp.h>
 
+static inline void zpci_err_clp(unsigned int rsp, int rc)
+{
+	struct {
+		unsigned int rsp;
+		int rc;
+	} __packed data = {rsp, rc};
+
+	zpci_err_hex(&data, sizeof(data));
+}
+
 /*
  * Call Logical Processor
  * Retry logic is handled by the caller.
@@ -54,7 +64,6 @@ static void clp_store_query_pci_fngrp(struct zpci_dev *zdev,
 	zdev->msi_addr = response->msia;
 	zdev->fmb_update = response->mui;
 
-	pr_debug("Supported number of MSI vectors: %u\n", response->noi);
 	switch (response->version) {
 	case 1:
 		zdev->max_bus_speed = PCIE_SPEED_5_0GT;
@@ -84,8 +93,8 @@ static int clp_query_pci_fngrp(struct zpci_dev *zdev, u8 pfgid)
 	if (!rc && rrb->response.hdr.rsp == CLP_RC_OK)
 		clp_store_query_pci_fngrp(zdev, &rrb->response);
 	else {
-		pr_err("Query PCI FNGRP failed with response: %x  cc: %d\n",
-			rrb->response.hdr.rsp, rc);
+		zpci_err("Q PCI FGRP:\n");
+		zpci_err_clp(rrb->response.hdr.rsp, rc);
 		rc = -EIO;
 	}
 	clp_free_block(rrb);
@@ -131,8 +140,8 @@ static int clp_query_pci_fn(struct zpci_dev *zdev, u32 fh)
 		if (rrb->response.pfgid)
 			rc = clp_query_pci_fngrp(zdev, rrb->response.pfgid);
 	} else {
-		pr_err("Query PCI failed with response: %x  cc: %d\n",
-			 rrb->response.hdr.rsp, rc);
+		zpci_err("Q PCI FN:\n");
+		zpci_err_clp(rrb->response.hdr.rsp, rc);
 		rc = -EIO;
 	}
 out:
@@ -206,8 +215,8 @@ static int clp_set_pci_fn(u32 *fh, u8 nr_dma_as, u8 command)
 	if (!rc && rrb->response.hdr.rsp == CLP_RC_OK)
 		*fh = rrb->response.fh;
 	else {
-		zpci_dbg(0, "SPF fh:%x, cc:%d, resp:%x\n", *fh, rc,
-			 rrb->response.hdr.rsp);
+		zpci_err("Set PCI FN:\n");
+		zpci_err_clp(rrb->response.hdr.rsp, rc);
 		rc = -EIO;
 	}
 	clp_free_block(rrb);
@@ -262,8 +271,8 @@ static int clp_list_pci(struct clp_req_rsp_list_pci *rrb,
 		/* Get PCI function handle list */
 		rc = clp_instr(rrb);
 		if (rc || rrb->response.hdr.rsp != CLP_RC_OK) {
-			pr_err("List PCI failed with response: 0x%x  cc: %d\n",
-				rrb->response.hdr.rsp, rc);
+			zpci_err("List PCI FN:\n");
+			zpci_err_clp(rrb->response.hdr.rsp, rc);
 			rc = -EIO;
 			goto out;
 		}
@@ -273,17 +282,11 @@ static int clp_list_pci(struct clp_req_rsp_list_pci *rrb,
 
 		entries = (rrb->response.hdr.len - LIST_PCI_HDR_LEN) /
 			rrb->response.entry_size;
-		pr_info("Detected number of PCI functions: %u\n", entries);
 
-		/* Store the returned resume token as input for the next call */
 		resume_token = rrb->response.resume_token;
-
 		for (i = 0; i < entries; i++)
 			cb(&rrb->response.fh_list[i]);
 	} while (resume_token);
-
-	pr_debug("Maximum number of supported PCI functions: %u\n",
-		rrb->response.max_fn);
 out:
 	return rc;
 }
diff --git a/arch/s390/pci/pci_dma.c b/arch/s390/pci/pci_dma.c
index 7e5573acb063..9b83d080902d 100644
--- a/arch/s390/pci/pci_dma.c
+++ b/arch/s390/pci/pci_dma.c
@@ -145,10 +145,8 @@ static int dma_update_trans(struct zpci_dev *zdev, unsigned long pa,
 		return -EINVAL;
 
 	spin_lock_irqsave(&zdev->dma_table_lock, irq_flags);
-	if (!zdev->dma_table) {
-		dev_err(&zdev->pdev->dev, "Missing DMA table\n");
+	if (!zdev->dma_table)
 		goto no_refresh;
-	}
 
 	for (i = 0; i < nr_pages; i++) {
 		dma_update_cpu_trans(zdev, page_addr, dma_addr, flags);
@@ -280,11 +278,8 @@ static dma_addr_t s390_dma_map_pages(struct device *dev, struct page *page,
 	size = nr_pages * PAGE_SIZE;
 
 	dma_addr = zdev->start_dma + iommu_page_index * PAGE_SIZE;
-	if (dma_addr + size > zdev->end_dma) {
-		dev_err(dev, "(dma_addr: 0x%16.16LX + size: 0x%16.16lx) > end_dma: 0x%16.16Lx\n",
-			 dma_addr, size, zdev->end_dma);
+	if (dma_addr + size > zdev->end_dma)
 		goto out_free;
-	}
 
 	if (direction == DMA_NONE || direction == DMA_TO_DEVICE)
 		flags |= ZPCI_TABLE_PROTECTED;
@@ -297,7 +292,8 @@ static dma_addr_t s390_dma_map_pages(struct device *dev, struct page *page,
 out_free:
 	dma_free_iommu(zdev, iommu_page_index, nr_pages);
 out_err:
-	dev_err(dev, "Failed to map addr: %lx\n", pa);
+	zpci_err("map error:\n");
+	zpci_err_hex(&pa, sizeof(pa));
 	return DMA_ERROR_CODE;
 }
 
@@ -312,8 +308,10 @@ static void s390_dma_unmap_pages(struct device *dev, dma_addr_t dma_addr,
 	npages = iommu_num_pages(dma_addr, size, PAGE_SIZE);
 	dma_addr = dma_addr & PAGE_MASK;
 	if (dma_update_trans(zdev, 0, dma_addr, npages * PAGE_SIZE,
-			     ZPCI_TABLE_PROTECTED | ZPCI_PTE_INVALID))
-		dev_err(dev, "Failed to unmap addr: %Lx\n", dma_addr);
+			     ZPCI_TABLE_PROTECTED | ZPCI_PTE_INVALID)) {
+		zpci_err("unmap error:\n");
+		zpci_err_hex(&dma_addr, sizeof(dma_addr));
+	}
 
 	atomic64_add(npages, (atomic64_t *) &zdev->fmb->unmapped_pages);
 	iommu_page_index = (dma_addr - zdev->start_dma) >> PAGE_SHIFT;
diff --git a/arch/s390/pci/pci_event.c b/arch/s390/pci/pci_event.c
index 0aecaf954845..278e671ec9ac 100644
--- a/arch/s390/pci/pci_event.c
+++ b/arch/s390/pci/pci_event.c
@@ -10,6 +10,7 @@
 
 #include <linux/kernel.h>
 #include <linux/pci.h>
+#include <asm/pci_debug.h>
 
 /* Content Code Description for PCI Function Error */
 struct zpci_ccdf_err {
@@ -41,25 +42,15 @@ struct zpci_ccdf_avail {
 	u16 pec;			/* PCI event code */
 } __packed;
 
-static void zpci_event_log_err(struct zpci_ccdf_err *ccdf)
-{
-	struct zpci_dev *zdev = get_zdev_by_fid(ccdf->fid);
-
-	zpci_err("SEI error CCD:\n");
-	zpci_err_hex(ccdf, sizeof(*ccdf));
-	dev_err(&zdev->pdev->dev, "event code: 0x%x\n", ccdf->pec);
-}
-
 static void zpci_event_log_avail(struct zpci_ccdf_avail *ccdf)
 {
 	struct zpci_dev *zdev = get_zdev_by_fid(ccdf->fid);
+	struct pci_dev *pdev = zdev ? zdev->pdev : NULL;
 
-	pr_err("%s%s: availability event: fh: 0x%x  fid: 0x%x  event code: 0x%x  reason:",
-		(zdev) ? dev_driver_string(&zdev->pdev->dev) : "?",
-		(zdev) ? dev_name(&zdev->pdev->dev) : "?",
-		ccdf->fh, ccdf->fid, ccdf->pec);
-	print_hex_dump(KERN_CONT, "ccdf", DUMP_PREFIX_OFFSET,
-		       16, 1, ccdf, sizeof(*ccdf), false);
+	pr_info("%s: Event 0x%x reconfigured PCI function 0x%x\n",
+		pdev ? pci_name(pdev) : "n/a", ccdf->pec, ccdf->fid);
+	zpci_err("avail CCDF:\n");
+	zpci_err_hex(ccdf, sizeof(*ccdf));
 
 	switch (ccdf->pec) {
 	case 0x0301:
@@ -79,14 +70,16 @@ static void zpci_event_log_avail(struct zpci_ccdf_avail *ccdf)
 void zpci_event_error(void *data)
 {
 	struct zpci_ccdf_err *ccdf = data;
-	struct zpci_dev *zdev;
+	struct zpci_dev *zdev = get_zdev_by_fid(ccdf->fid);
+
+	zpci_err("error CCDF:\n");
+	zpci_err_hex(ccdf, sizeof(*ccdf));
 
-	zpci_event_log_err(ccdf);
-	zdev = get_zdev_by_fid(ccdf->fid);
-	if (!zdev) {
-		pr_err("Error event for unknown fid: %x", ccdf->fid);
+	if (!zdev)
 		return;
-	}
+
+	pr_err("%s: Event 0x%x reports an error for PCI function 0x%x\n",
+	       pci_name(zdev->pdev), ccdf->pec, ccdf->fid);
 }
 
 void zpci_event_availability(void *data)
diff --git a/drivers/pci/hotplug/s390_pci_hpc.c b/drivers/pci/hotplug/s390_pci_hpc.c
index 66e505ca24ef..3c7eb5dd91c6 100644
--- a/drivers/pci/hotplug/s390_pci_hpc.c
+++ b/drivers/pci/hotplug/s390_pci_hpc.c
@@ -133,7 +133,6 @@ static void release_slot(struct hotplug_slot *hotplug_slot)
 {
 	struct slot *slot = hotplug_slot->private;
 
-	pr_debug("%s - physical_slot = %s\n", __func__, hotplug_slot_name(hotplug_slot));
 	kfree(slot->hotplug_slot->info);
 	kfree(slot->hotplug_slot);
 	kfree(slot);
@@ -183,10 +182,9 @@ int zpci_init_slot(struct zpci_dev *zdev)
 	snprintf(name, SLOT_NAME_SIZE, "%08x", zdev->fid);
 	rc = pci_hp_register(slot->hotplug_slot, zdev->bus,
 			     ZPCI_DEVFN, name);
-	if (rc) {
-		pr_err("pci_hp_register failed with error %d\n", rc);
+	if (rc)
 		goto error_reg;
-	}
+
 	list_add(&slot->slot_list, &s390_hotplug_slot_list);
 	return 0;
 
-- 
cgit 


From af0b129294cd715765e81d66000547c4026297c4 Mon Sep 17 00:00:00 2001
From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Tue, 22 Oct 2013 15:18:14 +0200
Subject: s390/pci: remove CONFIG_PCI_DEBUG dependancy

Add debugfs entries regardless of CONFIG_PCI_DEBUG.

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/pci_debug.h | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/s390/include/asm/pci_debug.h b/arch/s390/include/asm/pci_debug.h
index 1ca5d1047c71..ac24b26fc065 100644
--- a/arch/s390/include/asm/pci_debug.h
+++ b/arch/s390/include/asm/pci_debug.h
@@ -6,14 +6,9 @@
 extern debug_info_t *pci_debug_msg_id;
 extern debug_info_t *pci_debug_err_id;
 
-#ifdef CONFIG_PCI_DEBUG
 #define zpci_dbg(imp, fmt, args...)				\
 	debug_sprintf_event(pci_debug_msg_id, imp, fmt, ##args)
 
-#else /* !CONFIG_PCI_DEBUG */
-#define zpci_dbg(imp, fmt, args...) do { } while (0)
-#endif
-
 #define zpci_err(text...)							\
 	do {									\
 		char debug_buffer[16];						\
-- 
cgit 


From cb4deb69624c19980dded34a8cba7b67044c9fa9 Mon Sep 17 00:00:00 2001
From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Tue, 22 Oct 2013 15:19:24 +0200
Subject: s390/pci: cleanup function information block

Cleanup function information block used as a modify pci function
parameter. Change reserved members to be anonymous. Fix the size
of the struct and add proper alignment information. Also put the
FIB on the stack.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/pci_insn.h | 15 ++++++-------
 arch/s390/pci/pci.c              | 46 +++++++++++++---------------------------
 2 files changed, 21 insertions(+), 40 deletions(-)

diff --git a/arch/s390/include/asm/pci_insn.h b/arch/s390/include/asm/pci_insn.h
index df6eac9f0cb4..649eb62c52b3 100644
--- a/arch/s390/include/asm/pci_insn.h
+++ b/arch/s390/include/asm/pci_insn.h
@@ -54,11 +54,9 @@
 struct zpci_fib {
 	u32 fmt		:  8;	/* format */
 	u32		: 24;
-	u32 reserved1;
+	u32		: 32;
 	u8 fc;			/* function controls */
-	u8 reserved2;
-	u16 reserved3;
-	u32 reserved4;
+	u64		: 56;
 	u64 pba;		/* PCI base address */
 	u64 pal;		/* PCI address limit */
 	u64 iota;		/* I/O Translation Anchor */
@@ -70,14 +68,13 @@ struct zpci_fib {
 	u32 sum		:  1;	/* Adapter int summary bit enabled */
 	u32		:  1;
 	u32 aisbo	:  6;	/* Adapter int summary bit offset */
-	u32 reserved5;
+	u32		: 32;
 	u64 aibv;		/* Adapter int bit vector address */
 	u64 aisb;		/* Adapter int summary bit address */
 	u64 fmb_addr;		/* Function measurement block address and key */
-	u64 reserved6;
-	u64 reserved7;
-} __packed;
-
+	u32		: 32;
+	u32 gd;
+} __packed __aligned(8);
 
 int zpci_mod_fc(u64 req, struct zpci_fib *fib);
 int zpci_refresh_trans(u64 fn, u64 addr, u64 range);
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index fd6d6ce79439..0c9a17780e4b 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -120,25 +120,17 @@ EXPORT_SYMBOL_GPL(pci_proc_domain);
 static int zpci_set_airq(struct zpci_dev *zdev)
 {
 	u64 req = ZPCI_CREATE_REQ(zdev->fh, 0, ZPCI_MOD_FC_REG_INT);
-	struct zpci_fib *fib;
-	int rc;
-
-	fib = (void *) get_zeroed_page(GFP_KERNEL);
-	if (!fib)
-		return -ENOMEM;
+	struct zpci_fib fib = {0};
 
-	fib->isc = PCI_ISC;
-	fib->sum = 1;		/* enable summary notifications */
-	fib->noi = airq_iv_end(zdev->aibv);
-	fib->aibv = (unsigned long) zdev->aibv->vector;
-	fib->aibvo = 0;		/* each zdev has its own interrupt vector */
-	fib->aisb = (unsigned long) zpci_aisb_iv->vector + (zdev->aisb/64)*8;
-	fib->aisbo = zdev->aisb & 63;
+	fib.isc = PCI_ISC;
+	fib.sum = 1;		/* enable summary notifications */
+	fib.noi = airq_iv_end(zdev->aibv);
+	fib.aibv = (unsigned long) zdev->aibv->vector;
+	fib.aibvo = 0;		/* each zdev has its own interrupt vector */
+	fib.aisb = (unsigned long) zpci_aisb_iv->vector + (zdev->aisb/64)*8;
+	fib.aisbo = zdev->aisb & 63;
 
-	rc = zpci_mod_fc(req, fib);
-
-	free_page((unsigned long) fib);
-	return rc;
+	return zpci_mod_fc(req, &fib);
 }
 
 struct mod_pci_args {
@@ -151,22 +143,14 @@ struct mod_pci_args {
 static int mod_pci(struct zpci_dev *zdev, int fn, u8 dmaas, struct mod_pci_args *args)
 {
 	u64 req = ZPCI_CREATE_REQ(zdev->fh, dmaas, fn);
-	struct zpci_fib *fib;
-	int rc;
-
-	/* The FIB must be available even if it's not used */
-	fib = (void *) get_zeroed_page(GFP_KERNEL);
-	if (!fib)
-		return -ENOMEM;
+	struct zpci_fib fib = {0};
 
-	fib->pba = args->base;
-	fib->pal = args->limit;
-	fib->iota = args->iota;
-	fib->fmb_addr = args->fmb_addr;
+	fib.pba = args->base;
+	fib.pal = args->limit;
+	fib.iota = args->iota;
+	fib.fmb_addr = args->fmb_addr;
 
-	rc = zpci_mod_fc(req, fib);
-	free_page((unsigned long) fib);
-	return rc;
+	return zpci_mod_fc(req, &fib);
 }
 
 /* Modify PCI: Register I/O address translation parameters */
-- 
cgit 


From 73293c2f900d0adbb6a415b312cd57976d5ae242 Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 24 Oct 2013 10:07:37 +0900
Subject: slab: correct pfmemalloc check

We checked pfmemalloc by slab unit, not page unit. You can see this
in is_slab_pfmemalloc(). So other pages don't need to be set/cleared
pfmemalloc.

And, therefore we should check pfmemalloc in page flag of first page,
but current implementation don't do that. virt_to_head_page(obj) just
return 'struct page' of that object, not one of first page, since the SLAB
don't use __GFP_COMP when CONFIG_MMU. To get 'struct page' of first page,
we first get a slab and try to get it via virt_to_head_page(slab->s_mem).

Acked-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
---
 mm/slab.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index 2580db062df9..0b4ddafd8a03 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -930,7 +930,8 @@ static void *__ac_put_obj(struct kmem_cache *cachep, struct array_cache *ac,
 {
 	if (unlikely(pfmemalloc_active)) {
 		/* Some pfmemalloc slabs exist, check if this is one */
-		struct page *page = virt_to_head_page(objp);
+		struct slab *slabp = virt_to_slab(objp);
+		struct page *page = virt_to_head_page(slabp->s_mem);
 		if (PageSlabPfmemalloc(page))
 			set_obj_pfmemalloc(&objp);
 	}
@@ -1776,7 +1777,7 @@ static void *kmem_getpages(struct kmem_cache *cachep, gfp_t flags, int nodeid)
 		__SetPageSlab(page + i);
 
 		if (page->pfmemalloc)
-			SetPageSlabPfmemalloc(page + i);
+			SetPageSlabPfmemalloc(page);
 	}
 	memcg_bind_pages(cachep, cachep->gfporder);
 
@@ -1809,9 +1810,10 @@ static void kmem_freepages(struct kmem_cache *cachep, void *addr)
 	else
 		sub_zone_page_state(page_zone(page),
 				NR_SLAB_UNRECLAIMABLE, nr_freed);
+
+	__ClearPageSlabPfmemalloc(page);
 	while (i--) {
 		BUG_ON(!PageSlab(page));
-		__ClearPageSlabPfmemalloc(page);
 		__ClearPageSlab(page);
 		page++;
 	}
-- 
cgit 


From 0c3aa83e00a9cd93f08e7aa42fba01924aa5f2fc Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 24 Oct 2013 10:07:38 +0900
Subject: slab: change return type of kmem_getpages() to struct page

It is more understandable that kmem_getpages() return struct page.
And, with this, we can reduce one translation from virt addr to page and
makes better code than before. Below is a change of this patch.

* Before
   text	   data	    bss	    dec	    hex	filename
  22123	  23434	      4	  45561	   b1f9	mm/slab.o

* After
   text	   data	    bss	    dec	    hex	filename
  22074	  23434	      4	  45512	   b1c8	mm/slab.o

And this help following patch to remove struct slab's colouroff.

Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
---
 mm/slab.c | 60 ++++++++++++++++++++++++++++++------------------------------
 1 file changed, 30 insertions(+), 30 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index 0b4ddafd8a03..7d79bd766002 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -205,7 +205,7 @@ typedef unsigned int kmem_bufctl_t;
 struct slab_rcu {
 	struct rcu_head head;
 	struct kmem_cache *cachep;
-	void *addr;
+	struct page *page;
 };
 
 /*
@@ -1737,7 +1737,8 @@ slab_out_of_memory(struct kmem_cache *cachep, gfp_t gfpflags, int nodeid)
  * did not request dmaable memory, we might get it, but that
  * would be relatively rare and ignorable.
  */
-static void *kmem_getpages(struct kmem_cache *cachep, gfp_t flags, int nodeid)
+static struct page *kmem_getpages(struct kmem_cache *cachep, gfp_t flags,
+								int nodeid)
 {
 	struct page *page;
 	int nr_pages;
@@ -1790,16 +1791,15 @@ static void *kmem_getpages(struct kmem_cache *cachep, gfp_t flags, int nodeid)
 			kmemcheck_mark_unallocated_pages(page, nr_pages);
 	}
 
-	return page_address(page);
+	return page;
 }
 
 /*
  * Interface to system's page release.
  */
-static void kmem_freepages(struct kmem_cache *cachep, void *addr)
+static void kmem_freepages(struct kmem_cache *cachep, struct page *page)
 {
 	unsigned long i = (1 << cachep->gfporder);
-	struct page *page = virt_to_page(addr);
 	const unsigned long nr_freed = i;
 
 	kmemcheck_free_shadow(page, cachep->gfporder);
@@ -1821,7 +1821,7 @@ static void kmem_freepages(struct kmem_cache *cachep, void *addr)
 	memcg_release_pages(cachep, cachep->gfporder);
 	if (current->reclaim_state)
 		current->reclaim_state->reclaimed_slab += nr_freed;
-	free_memcg_kmem_pages((unsigned long)addr, cachep->gfporder);
+	__free_memcg_kmem_pages(page, cachep->gfporder);
 }
 
 static void kmem_rcu_free(struct rcu_head *head)
@@ -1829,7 +1829,7 @@ static void kmem_rcu_free(struct rcu_head *head)
 	struct slab_rcu *slab_rcu = (struct slab_rcu *)head;
 	struct kmem_cache *cachep = slab_rcu->cachep;
 
-	kmem_freepages(cachep, slab_rcu->addr);
+	kmem_freepages(cachep, slab_rcu->page);
 	if (OFF_SLAB(cachep))
 		kmem_cache_free(cachep->slabp_cache, slab_rcu);
 }
@@ -2048,7 +2048,7 @@ static void slab_destroy_debugcheck(struct kmem_cache *cachep, struct slab *slab
  */
 static void slab_destroy(struct kmem_cache *cachep, struct slab *slabp)
 {
-	void *addr = slabp->s_mem - slabp->colouroff;
+	struct page *page = virt_to_head_page(slabp->s_mem);
 
 	slab_destroy_debugcheck(cachep, slabp);
 	if (unlikely(cachep->flags & SLAB_DESTROY_BY_RCU)) {
@@ -2056,10 +2056,10 @@ static void slab_destroy(struct kmem_cache *cachep, struct slab *slabp)
 
 		slab_rcu = (struct slab_rcu *)slabp;
 		slab_rcu->cachep = cachep;
-		slab_rcu->addr = addr;
+		slab_rcu->page = page;
 		call_rcu(&slab_rcu->head, kmem_rcu_free);
 	} else {
-		kmem_freepages(cachep, addr);
+		kmem_freepages(cachep, page);
 		if (OFF_SLAB(cachep))
 			kmem_cache_free(cachep->slabp_cache, slabp);
 	}
@@ -2604,11 +2604,12 @@ int __kmem_cache_shutdown(struct kmem_cache *cachep)
  * kmem_find_general_cachep till the initialization is complete.
  * Hence we cannot have slabp_cache same as the original cache.
  */
-static struct slab *alloc_slabmgmt(struct kmem_cache *cachep, void *objp,
-				   int colour_off, gfp_t local_flags,
-				   int nodeid)
+static struct slab *alloc_slabmgmt(struct kmem_cache *cachep,
+				   struct page *page, int colour_off,
+				   gfp_t local_flags, int nodeid)
 {
 	struct slab *slabp;
+	void *addr = page_address(page);
 
 	if (OFF_SLAB(cachep)) {
 		/* Slab management obj is off-slab. */
@@ -2625,12 +2626,12 @@ static struct slab *alloc_slabmgmt(struct kmem_cache *cachep, void *objp,
 		if (!slabp)
 			return NULL;
 	} else {
-		slabp = objp + colour_off;
+		slabp = addr + colour_off;
 		colour_off += cachep->slab_size;
 	}
 	slabp->inuse = 0;
 	slabp->colouroff = colour_off;
-	slabp->s_mem = objp + colour_off;
+	slabp->s_mem = addr + colour_off;
 	slabp->nodeid = nodeid;
 	slabp->free = 0;
 	return slabp;
@@ -2741,12 +2742,9 @@ static void slab_put_obj(struct kmem_cache *cachep, struct slab *slabp,
  * virtual address for kfree, ksize, and slab debugging.
  */
 static void slab_map_pages(struct kmem_cache *cache, struct slab *slab,
-			   void *addr)
+			   struct page *page)
 {
 	int nr_pages;
-	struct page *page;
-
-	page = virt_to_page(addr);
 
 	nr_pages = 1;
 	if (likely(!PageCompound(page)))
@@ -2764,7 +2762,7 @@ static void slab_map_pages(struct kmem_cache *cache, struct slab *slab,
  * kmem_cache_alloc() when there are no active objs left in a cache.
  */
 static int cache_grow(struct kmem_cache *cachep,
-		gfp_t flags, int nodeid, void *objp)
+		gfp_t flags, int nodeid, struct page *page)
 {
 	struct slab *slabp;
 	size_t offset;
@@ -2807,18 +2805,18 @@ static int cache_grow(struct kmem_cache *cachep,
 	 * Get mem for the objs.  Attempt to allocate a physical page from
 	 * 'nodeid'.
 	 */
-	if (!objp)
-		objp = kmem_getpages(cachep, local_flags, nodeid);
-	if (!objp)
+	if (!page)
+		page = kmem_getpages(cachep, local_flags, nodeid);
+	if (!page)
 		goto failed;
 
 	/* Get slab management. */
-	slabp = alloc_slabmgmt(cachep, objp, offset,
+	slabp = alloc_slabmgmt(cachep, page, offset,
 			local_flags & ~GFP_CONSTRAINT_MASK, nodeid);
 	if (!slabp)
 		goto opps1;
 
-	slab_map_pages(cachep, slabp, objp);
+	slab_map_pages(cachep, slabp, page);
 
 	cache_init_objs(cachep, slabp);
 
@@ -2834,7 +2832,7 @@ static int cache_grow(struct kmem_cache *cachep,
 	spin_unlock(&n->list_lock);
 	return 1;
 opps1:
-	kmem_freepages(cachep, objp);
+	kmem_freepages(cachep, page);
 failed:
 	if (local_flags & __GFP_WAIT)
 		local_irq_disable();
@@ -3250,18 +3248,20 @@ retry:
 		 * We may trigger various forms of reclaim on the allowed
 		 * set and go into memory reserves if necessary.
 		 */
+		struct page *page;
+
 		if (local_flags & __GFP_WAIT)
 			local_irq_enable();
 		kmem_flagcheck(cache, flags);
-		obj = kmem_getpages(cache, local_flags, numa_mem_id());
+		page = kmem_getpages(cache, local_flags, numa_mem_id());
 		if (local_flags & __GFP_WAIT)
 			local_irq_disable();
-		if (obj) {
+		if (page) {
 			/*
 			 * Insert into the appropriate per node queues
 			 */
-			nid = page_to_nid(virt_to_page(obj));
-			if (cache_grow(cache, flags, nid, obj)) {
+			nid = page_to_nid(page);
+			if (cache_grow(cache, flags, nid, page)) {
 				obj = ____cache_alloc_node(cache,
 					flags | GFP_THISNODE, nid);
 				if (!obj)
-- 
cgit 


From ac2b54edbc4768f4a069fc360e2b4e579e9907cb Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 24 Oct 2013 10:07:39 +0900
Subject: slab: remove colouroff in struct slab

Now there is no user colouroff, so remove it.

Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
---
 mm/slab.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index 7d79bd766002..34eb1152aba4 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -219,7 +219,6 @@ struct slab {
 	union {
 		struct {
 			struct list_head list;
-			unsigned long colouroff;
 			void *s_mem;		/* including colour offset */
 			unsigned int inuse;	/* num of objs active in slab */
 			kmem_bufctl_t free;
@@ -2630,7 +2629,6 @@ static struct slab *alloc_slabmgmt(struct kmem_cache *cachep,
 		colour_off += cachep->slab_size;
 	}
 	slabp->inuse = 0;
-	slabp->colouroff = colour_off;
 	slabp->s_mem = addr + colour_off;
 	slabp->nodeid = nodeid;
 	slabp->free = 0;
-- 
cgit 


From 1ea991b00c26e3a275e2d2e110e5221211fc45b6 Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 24 Oct 2013 10:07:40 +0900
Subject: slab: remove nodeid in struct slab

We can get nodeid using address translation, so this field is not useful.
Therefore, remove it.

Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
---
 mm/slab.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index 34eb1152aba4..71ba8f53f9b7 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -222,7 +222,6 @@ struct slab {
 			void *s_mem;		/* including colour offset */
 			unsigned int inuse;	/* num of objs active in slab */
 			kmem_bufctl_t free;
-			unsigned short nodeid;
 		};
 		struct slab_rcu __slab_cover_slab_rcu;
 	};
@@ -1099,8 +1098,7 @@ static void drain_alien_cache(struct kmem_cache *cachep,
 
 static inline int cache_free_alien(struct kmem_cache *cachep, void *objp)
 {
-	struct slab *slabp = virt_to_slab(objp);
-	int nodeid = slabp->nodeid;
+	int nodeid = page_to_nid(virt_to_page(objp));
 	struct kmem_cache_node *n;
 	struct array_cache *alien = NULL;
 	int node;
@@ -1111,7 +1109,7 @@ static inline int cache_free_alien(struct kmem_cache *cachep, void *objp)
 	 * Make sure we are not freeing a object from another node to the array
 	 * cache on this cpu.
 	 */
-	if (likely(slabp->nodeid == node))
+	if (likely(nodeid == node))
 		return 0;
 
 	n = cachep->node[node];
@@ -2630,7 +2628,6 @@ static struct slab *alloc_slabmgmt(struct kmem_cache *cachep,
 	}
 	slabp->inuse = 0;
 	slabp->s_mem = addr + colour_off;
-	slabp->nodeid = nodeid;
 	slabp->free = 0;
 	return slabp;
 }
@@ -2707,7 +2704,7 @@ static void *slab_get_obj(struct kmem_cache *cachep, struct slab *slabp,
 	next = slab_bufctl(slabp)[slabp->free];
 #if DEBUG
 	slab_bufctl(slabp)[slabp->free] = BUFCTL_FREE;
-	WARN_ON(slabp->nodeid != nodeid);
+	WARN_ON(page_to_nid(virt_to_page(objp)) != nodeid);
 #endif
 	slabp->free = next;
 
@@ -2721,7 +2718,7 @@ static void slab_put_obj(struct kmem_cache *cachep, struct slab *slabp,
 
 #if DEBUG
 	/* Verify that the slab belongs to the intended node */
-	WARN_ON(slabp->nodeid != nodeid);
+	WARN_ON(page_to_nid(virt_to_page(objp)) != nodeid);
 
 	if (slab_bufctl(slabp)[objnr] + 1 <= SLAB_LIMIT + 1) {
 		printk(KERN_ERR "slab: double free detected in cache "
-- 
cgit 


From 07d417a1c6f1e386a2276b0cae8ae1d14b8a32cc Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 24 Oct 2013 10:07:41 +0900
Subject: slab: remove cachep in struct slab_rcu

We can get cachep using page in struct slab_rcu, so remove it.

Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
---
 mm/slab.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index 71ba8f53f9b7..7e1aabe2b5d8 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -204,7 +204,6 @@ typedef unsigned int kmem_bufctl_t;
  */
 struct slab_rcu {
 	struct rcu_head head;
-	struct kmem_cache *cachep;
 	struct page *page;
 };
 
@@ -1824,7 +1823,7 @@ static void kmem_freepages(struct kmem_cache *cachep, struct page *page)
 static void kmem_rcu_free(struct rcu_head *head)
 {
 	struct slab_rcu *slab_rcu = (struct slab_rcu *)head;
-	struct kmem_cache *cachep = slab_rcu->cachep;
+	struct kmem_cache *cachep = slab_rcu->page->slab_cache;
 
 	kmem_freepages(cachep, slab_rcu->page);
 	if (OFF_SLAB(cachep))
@@ -2052,7 +2051,6 @@ static void slab_destroy(struct kmem_cache *cachep, struct slab *slabp)
 		struct slab_rcu *slab_rcu;
 
 		slab_rcu = (struct slab_rcu *)slabp;
-		slab_rcu->cachep = cachep;
 		slab_rcu->page = page;
 		call_rcu(&slab_rcu->head, kmem_rcu_free);
 	} else {
-- 
cgit 


From 68126702b419fd26ef4946e314bb3a1f57d3a53f Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 24 Oct 2013 10:07:42 +0900
Subject: slab: overloading the RCU head over the LRU for RCU free

With build-time size checking, we can overload the RCU head over the LRU
of struct page to free pages of a slab in rcu context. This really help to
implement to overload the struct slab over the struct page and this
eventually reduce memory usage and cache footprint of the SLAB.

Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
---
 include/linux/mm_types.h |  3 +++
 include/linux/slab.h     |  9 ++++++-
 mm/slab.c                | 68 +++++++++++++++++++++---------------------------
 3 files changed, 41 insertions(+), 39 deletions(-)

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index faf4b7c1ad12..959cb369b197 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -130,6 +130,9 @@ struct page {
 
 		struct list_head list;	/* slobs list of pages */
 		struct slab *slab_page; /* slab fields */
+		struct rcu_head rcu_head;	/* Used by SLAB
+						 * when destroying via RCU
+						 */
 	};
 
 	/* Remainder is not double word aligned */
diff --git a/include/linux/slab.h b/include/linux/slab.h
index 6c5cc0ea8713..caaad51fee1f 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -51,7 +51,14 @@
  *  }
  *  rcu_read_unlock();
  *
- * See also the comment on struct slab_rcu in mm/slab.c.
+ * This is useful if we need to approach a kernel structure obliquely,
+ * from its address obtained without the usual locking. We can lock
+ * the structure to stabilize it and check it's still at the given address,
+ * only if we can be sure that the memory has not been meanwhile reused
+ * for some other kind of object (which our subsystem's lock might corrupt).
+ *
+ * rcu_read_lock before reading the address, then rcu_read_unlock after
+ * taking the spinlock within the structure expected at that address.
  */
 #define SLAB_DESTROY_BY_RCU	0x00080000UL	/* Defer freeing slabs to RCU */
 #define SLAB_MEM_SPREAD		0x00100000UL	/* Spread some memory over cpuset */
diff --git a/mm/slab.c b/mm/slab.c
index 7e1aabe2b5d8..84c4ed62c10d 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -188,25 +188,6 @@ typedef unsigned int kmem_bufctl_t;
 #define	BUFCTL_ACTIVE	(((kmem_bufctl_t)(~0U))-2)
 #define	SLAB_LIMIT	(((kmem_bufctl_t)(~0U))-3)
 
-/*
- * struct slab_rcu
- *
- * slab_destroy on a SLAB_DESTROY_BY_RCU cache uses this structure to
- * arrange for kmem_freepages to be called via RCU.  This is useful if
- * we need to approach a kernel structure obliquely, from its address
- * obtained without the usual locking.  We can lock the structure to
- * stabilize it and check it's still at the given address, only if we
- * can be sure that the memory has not been meanwhile reused for some
- * other kind of object (which our subsystem's lock might corrupt).
- *
- * rcu_read_lock before reading the address, then rcu_read_unlock after
- * taking the spinlock within the structure expected at that address.
- */
-struct slab_rcu {
-	struct rcu_head head;
-	struct page *page;
-};
-
 /*
  * struct slab
  *
@@ -215,14 +196,11 @@ struct slab_rcu {
  * Slabs are chained into three list: fully used, partial, fully free slabs.
  */
 struct slab {
-	union {
-		struct {
-			struct list_head list;
-			void *s_mem;		/* including colour offset */
-			unsigned int inuse;	/* num of objs active in slab */
-			kmem_bufctl_t free;
-		};
-		struct slab_rcu __slab_cover_slab_rcu;
+	struct {
+		struct list_head list;
+		void *s_mem;		/* including colour offset */
+		unsigned int inuse;	/* num of objs active in slab */
+		kmem_bufctl_t free;
 	};
 };
 
@@ -1509,6 +1487,8 @@ void __init kmem_cache_init(void)
 {
 	int i;
 
+	BUILD_BUG_ON(sizeof(((struct page *)NULL)->lru) <
+					sizeof(struct rcu_head));
 	kmem_cache = &kmem_cache_boot;
 	setup_node_pointer(kmem_cache);
 
@@ -1822,12 +1802,13 @@ static void kmem_freepages(struct kmem_cache *cachep, struct page *page)
 
 static void kmem_rcu_free(struct rcu_head *head)
 {
-	struct slab_rcu *slab_rcu = (struct slab_rcu *)head;
-	struct kmem_cache *cachep = slab_rcu->page->slab_cache;
+	struct kmem_cache *cachep;
+	struct page *page;
 
-	kmem_freepages(cachep, slab_rcu->page);
-	if (OFF_SLAB(cachep))
-		kmem_cache_free(cachep->slabp_cache, slab_rcu);
+	page = container_of(head, struct page, rcu_head);
+	cachep = page->slab_cache;
+
+	kmem_freepages(cachep, page);
 }
 
 #if DEBUG
@@ -2048,16 +2029,27 @@ static void slab_destroy(struct kmem_cache *cachep, struct slab *slabp)
 
 	slab_destroy_debugcheck(cachep, slabp);
 	if (unlikely(cachep->flags & SLAB_DESTROY_BY_RCU)) {
-		struct slab_rcu *slab_rcu;
+		struct rcu_head *head;
+
+		/*
+		 * RCU free overloads the RCU head over the LRU.
+		 * slab_page has been overloeaded over the LRU,
+		 * however it is not used from now on so that
+		 * we can use it safely.
+		 */
+		head = (void *)&page->rcu_head;
+		call_rcu(head, kmem_rcu_free);
 
-		slab_rcu = (struct slab_rcu *)slabp;
-		slab_rcu->page = page;
-		call_rcu(&slab_rcu->head, kmem_rcu_free);
 	} else {
 		kmem_freepages(cachep, page);
-		if (OFF_SLAB(cachep))
-			kmem_cache_free(cachep->slabp_cache, slabp);
 	}
+
+	/*
+	 * From now on, we don't use slab management
+	 * although actual page can be freed in rcu context
+	 */
+	if (OFF_SLAB(cachep))
+		kmem_cache_free(cachep->slabp_cache, slabp);
 }
 
 /**
-- 
cgit 


From 56f295ef0dfa7e1d0be18deebe0c15fb6b2d9d5b Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 24 Oct 2013 10:07:43 +0900
Subject: slab: use well-defined macro, virt_to_slab()

This is trivial change, just use well-defined macro.

Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
---
 mm/slab.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index 84c4ed62c10d..f9e676edeb0f 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2865,7 +2865,6 @@ static inline void verify_redzone_free(struct kmem_cache *cache, void *obj)
 static void *cache_free_debugcheck(struct kmem_cache *cachep, void *objp,
 				   unsigned long caller)
 {
-	struct page *page;
 	unsigned int objnr;
 	struct slab *slabp;
 
@@ -2873,9 +2872,7 @@ static void *cache_free_debugcheck(struct kmem_cache *cachep, void *objp,
 
 	objp -= obj_offset(cachep);
 	kfree_debugcheck(objp);
-	page = virt_to_head_page(objp);
-
-	slabp = page->slab_page;
+	slabp = virt_to_slab(objp);
 
 	if (cachep->flags & SLAB_RED_ZONE) {
 		verify_redzone_free(cachep, objp);
@@ -3087,7 +3084,7 @@ static void *cache_alloc_debugcheck_after(struct kmem_cache *cachep,
 		struct slab *slabp;
 		unsigned objnr;
 
-		slabp = virt_to_head_page(objp)->slab_page;
+		slabp = virt_to_slab(objp);
 		objnr = (unsigned)(objp - slabp->s_mem) / cachep->size;
 		slab_bufctl(slabp)[objnr] = BUFCTL_ACTIVE;
 	}
-- 
cgit 


From a57a49887eb3398d31bfaa8009531f7121d6537d Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 24 Oct 2013 10:07:44 +0900
Subject: slab: use __GFP_COMP flag for allocating slab pages

If we use 'struct page' of first page as 'struct slab', there is no
advantage not to use __GFP_COMP. So use __GFP_COMP flag for all the cases.

Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
---
 mm/slab.c | 43 +++++++++----------------------------------
 1 file changed, 9 insertions(+), 34 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index f9e676edeb0f..75c60821e382 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1718,15 +1718,6 @@ static struct page *kmem_getpages(struct kmem_cache *cachep, gfp_t flags,
 {
 	struct page *page;
 	int nr_pages;
-	int i;
-
-#ifndef CONFIG_MMU
-	/*
-	 * Nommu uses slab's for process anonymous memory allocations, and thus
-	 * requires __GFP_COMP to properly refcount higher order allocations
-	 */
-	flags |= __GFP_COMP;
-#endif
 
 	flags |= cachep->allocflags;
 	if (cachep->flags & SLAB_RECLAIM_ACCOUNT)
@@ -1750,12 +1741,9 @@ static struct page *kmem_getpages(struct kmem_cache *cachep, gfp_t flags,
 	else
 		add_zone_page_state(page_zone(page),
 			NR_SLAB_UNRECLAIMABLE, nr_pages);
-	for (i = 0; i < nr_pages; i++) {
-		__SetPageSlab(page + i);
-
-		if (page->pfmemalloc)
-			SetPageSlabPfmemalloc(page);
-	}
+	__SetPageSlab(page);
+	if (page->pfmemalloc)
+		SetPageSlabPfmemalloc(page);
 	memcg_bind_pages(cachep, cachep->gfporder);
 
 	if (kmemcheck_enabled && !(cachep->flags & SLAB_NOTRACK)) {
@@ -1775,8 +1763,7 @@ static struct page *kmem_getpages(struct kmem_cache *cachep, gfp_t flags,
  */
 static void kmem_freepages(struct kmem_cache *cachep, struct page *page)
 {
-	unsigned long i = (1 << cachep->gfporder);
-	const unsigned long nr_freed = i;
+	const unsigned long nr_freed = (1 << cachep->gfporder);
 
 	kmemcheck_free_shadow(page, cachep->gfporder);
 
@@ -1787,12 +1774,9 @@ static void kmem_freepages(struct kmem_cache *cachep, struct page *page)
 		sub_zone_page_state(page_zone(page),
 				NR_SLAB_UNRECLAIMABLE, nr_freed);
 
+	BUG_ON(!PageSlab(page));
 	__ClearPageSlabPfmemalloc(page);
-	while (i--) {
-		BUG_ON(!PageSlab(page));
-		__ClearPageSlab(page);
-		page++;
-	}
+	__ClearPageSlab(page);
 
 	memcg_release_pages(cachep, cachep->gfporder);
 	if (current->reclaim_state)
@@ -2362,7 +2346,7 @@ __kmem_cache_create (struct kmem_cache *cachep, unsigned long flags)
 	cachep->colour = left_over / cachep->colour_off;
 	cachep->slab_size = slab_size;
 	cachep->flags = flags;
-	cachep->allocflags = 0;
+	cachep->allocflags = __GFP_COMP;
 	if (CONFIG_ZONE_DMA_FLAG && (flags & SLAB_CACHE_DMA))
 		cachep->allocflags |= GFP_DMA;
 	cachep->size = size;
@@ -2729,17 +2713,8 @@ static void slab_put_obj(struct kmem_cache *cachep, struct slab *slabp,
 static void slab_map_pages(struct kmem_cache *cache, struct slab *slab,
 			   struct page *page)
 {
-	int nr_pages;
-
-	nr_pages = 1;
-	if (likely(!PageCompound(page)))
-		nr_pages <<= cache->gfporder;
-
-	do {
-		page->slab_cache = cache;
-		page->slab_page = slab;
-		page++;
-	} while (--nr_pages);
+	page->slab_cache = cache;
+	page->slab_page = slab;
 }
 
 /*
-- 
cgit 


From b1cb0982bdd6f57fed690f796659733350bb2cae Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 24 Oct 2013 10:07:45 +0900
Subject: slab: change the management method of free objects of the slab

Current free objects management method of the slab is weird, because
it touch random position of the array of kmem_bufctl_t when we try to
get free object. See following example.

struct slab's free = 6
kmem_bufctl_t array: 1 END 5 7 0 4 3 2

To get free objects, we access this array with following pattern.
6 -> 3 -> 7 -> 2 -> 5 -> 4 -> 0 -> 1 -> END

If we have many objects, this array would be larger and be not in the same
cache line. It is not good for performance.

We can do same thing through more easy way, like as the stack.
Only thing we have to do is to maintain stack top to free object. I use
free field of struct slab for this purpose. After that, if we need to get
an object, we can get it at stack top and manipulate top pointer.
That's all. This method already used in array_cache management.
Following is an access pattern when we use this method.

struct slab's free = 0
kmem_bufctl_t array: 6 3 7 2 5 4 0 1

To get free objects, we access this array with following pattern.
0 -> 1 -> 2 -> 3 -> 4 -> 5 -> 6 -> 7

This may help cache line footprint if slab has many objects, and,
in addition, this makes code much much simpler.

Acked-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
---
 mm/slab.c | 94 ++++++++++++++++++++-------------------------------------------
 1 file changed, 30 insertions(+), 64 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index 75c60821e382..05fe37eb4a57 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -183,9 +183,6 @@ static bool pfmemalloc_active __read_mostly;
  */
 
 typedef unsigned int kmem_bufctl_t;
-#define BUFCTL_END	(((kmem_bufctl_t)(~0U))-0)
-#define BUFCTL_FREE	(((kmem_bufctl_t)(~0U))-1)
-#define	BUFCTL_ACTIVE	(((kmem_bufctl_t)(~0U))-2)
 #define	SLAB_LIMIT	(((kmem_bufctl_t)(~0U))-3)
 
 /*
@@ -2653,9 +2650,8 @@ static void cache_init_objs(struct kmem_cache *cachep,
 		if (cachep->ctor)
 			cachep->ctor(objp);
 #endif
-		slab_bufctl(slabp)[i] = i + 1;
+		slab_bufctl(slabp)[i] = i;
 	}
-	slab_bufctl(slabp)[i - 1] = BUFCTL_END;
 }
 
 static void kmem_flagcheck(struct kmem_cache *cachep, gfp_t flags)
@@ -2671,16 +2667,14 @@ static void kmem_flagcheck(struct kmem_cache *cachep, gfp_t flags)
 static void *slab_get_obj(struct kmem_cache *cachep, struct slab *slabp,
 				int nodeid)
 {
-	void *objp = index_to_obj(cachep, slabp, slabp->free);
-	kmem_bufctl_t next;
+	void *objp;
 
 	slabp->inuse++;
-	next = slab_bufctl(slabp)[slabp->free];
+	objp = index_to_obj(cachep, slabp, slab_bufctl(slabp)[slabp->free]);
 #if DEBUG
-	slab_bufctl(slabp)[slabp->free] = BUFCTL_FREE;
 	WARN_ON(page_to_nid(virt_to_page(objp)) != nodeid);
 #endif
-	slabp->free = next;
+	slabp->free++;
 
 	return objp;
 }
@@ -2689,19 +2683,23 @@ static void slab_put_obj(struct kmem_cache *cachep, struct slab *slabp,
 				void *objp, int nodeid)
 {
 	unsigned int objnr = obj_to_index(cachep, slabp, objp);
-
 #if DEBUG
+	kmem_bufctl_t i;
+
 	/* Verify that the slab belongs to the intended node */
 	WARN_ON(page_to_nid(virt_to_page(objp)) != nodeid);
 
-	if (slab_bufctl(slabp)[objnr] + 1 <= SLAB_LIMIT + 1) {
-		printk(KERN_ERR "slab: double free detected in cache "
-				"'%s', objp %p\n", cachep->name, objp);
-		BUG();
+	/* Verify double free bug */
+	for (i = slabp->free; i < cachep->num; i++) {
+		if (slab_bufctl(slabp)[i] == objnr) {
+			printk(KERN_ERR "slab: double free detected in cache "
+					"'%s', objp %p\n", cachep->name, objp);
+			BUG();
+		}
 	}
 #endif
-	slab_bufctl(slabp)[objnr] = slabp->free;
-	slabp->free = objnr;
+	slabp->free--;
+	slab_bufctl(slabp)[slabp->free] = objnr;
 	slabp->inuse--;
 }
 
@@ -2862,9 +2860,6 @@ static void *cache_free_debugcheck(struct kmem_cache *cachep, void *objp,
 	BUG_ON(objnr >= cachep->num);
 	BUG_ON(objp != index_to_obj(cachep, slabp, objnr));
 
-#ifdef CONFIG_DEBUG_SLAB_LEAK
-	slab_bufctl(slabp)[objnr] = BUFCTL_FREE;
-#endif
 	if (cachep->flags & SLAB_POISON) {
 #ifdef CONFIG_DEBUG_PAGEALLOC
 		if ((cachep->size % PAGE_SIZE)==0 && OFF_SLAB(cachep)) {
@@ -2881,33 +2876,9 @@ static void *cache_free_debugcheck(struct kmem_cache *cachep, void *objp,
 	return objp;
 }
 
-static void check_slabp(struct kmem_cache *cachep, struct slab *slabp)
-{
-	kmem_bufctl_t i;
-	int entries = 0;
-
-	/* Check slab's freelist to see if this obj is there. */
-	for (i = slabp->free; i != BUFCTL_END; i = slab_bufctl(slabp)[i]) {
-		entries++;
-		if (entries > cachep->num || i >= cachep->num)
-			goto bad;
-	}
-	if (entries != cachep->num - slabp->inuse) {
-bad:
-		printk(KERN_ERR "slab: Internal list corruption detected in "
-			"cache '%s'(%d), slabp %p(%d). Tainted(%s). Hexdump:\n",
-			cachep->name, cachep->num, slabp, slabp->inuse,
-			print_tainted());
-		print_hex_dump(KERN_ERR, "", DUMP_PREFIX_OFFSET, 16, 1, slabp,
-			sizeof(*slabp) + cachep->num * sizeof(kmem_bufctl_t),
-			1);
-		BUG();
-	}
-}
 #else
 #define kfree_debugcheck(x) do { } while(0)
 #define cache_free_debugcheck(x,objp,z) (objp)
-#define check_slabp(x,y) do { } while(0)
 #endif
 
 static void *cache_alloc_refill(struct kmem_cache *cachep, gfp_t flags,
@@ -2957,7 +2928,6 @@ retry:
 		}
 
 		slabp = list_entry(entry, struct slab, list);
-		check_slabp(cachep, slabp);
 		check_spinlock_acquired(cachep);
 
 		/*
@@ -2975,11 +2945,10 @@ retry:
 			ac_put_obj(cachep, ac, slab_get_obj(cachep, slabp,
 									node));
 		}
-		check_slabp(cachep, slabp);
 
 		/* move slabp to correct slabp list: */
 		list_del(&slabp->list);
-		if (slabp->free == BUFCTL_END)
+		if (slabp->free == cachep->num)
 			list_add(&slabp->list, &n->slabs_full);
 		else
 			list_add(&slabp->list, &n->slabs_partial);
@@ -3054,16 +3023,6 @@ static void *cache_alloc_debugcheck_after(struct kmem_cache *cachep,
 		*dbg_redzone1(cachep, objp) = RED_ACTIVE;
 		*dbg_redzone2(cachep, objp) = RED_ACTIVE;
 	}
-#ifdef CONFIG_DEBUG_SLAB_LEAK
-	{
-		struct slab *slabp;
-		unsigned objnr;
-
-		slabp = virt_to_slab(objp);
-		objnr = (unsigned)(objp - slabp->s_mem) / cachep->size;
-		slab_bufctl(slabp)[objnr] = BUFCTL_ACTIVE;
-	}
-#endif
 	objp += obj_offset(cachep);
 	if (cachep->ctor && cachep->flags & SLAB_POISON)
 		cachep->ctor(objp);
@@ -3269,7 +3228,6 @@ retry:
 
 	slabp = list_entry(entry, struct slab, list);
 	check_spinlock_acquired_node(cachep, nodeid);
-	check_slabp(cachep, slabp);
 
 	STATS_INC_NODEALLOCS(cachep);
 	STATS_INC_ACTIVE(cachep);
@@ -3278,12 +3236,11 @@ retry:
 	BUG_ON(slabp->inuse == cachep->num);
 
 	obj = slab_get_obj(cachep, slabp, nodeid);
-	check_slabp(cachep, slabp);
 	n->free_objects--;
 	/* move slabp to correct slabp list: */
 	list_del(&slabp->list);
 
-	if (slabp->free == BUFCTL_END)
+	if (slabp->free == cachep->num)
 		list_add(&slabp->list, &n->slabs_full);
 	else
 		list_add(&slabp->list, &n->slabs_partial);
@@ -3445,11 +3402,9 @@ static void free_block(struct kmem_cache *cachep, void **objpp, int nr_objects,
 		n = cachep->node[node];
 		list_del(&slabp->list);
 		check_spinlock_acquired_node(cachep, node);
-		check_slabp(cachep, slabp);
 		slab_put_obj(cachep, slabp, objp, node);
 		STATS_DEC_ACTIVE(cachep);
 		n->free_objects++;
-		check_slabp(cachep, slabp);
 
 		/* fixup slab chains */
 		if (slabp->inuse == 0) {
@@ -4308,12 +4263,23 @@ static inline int add_caller(unsigned long *n, unsigned long v)
 static void handle_slab(unsigned long *n, struct kmem_cache *c, struct slab *s)
 {
 	void *p;
-	int i;
+	int i, j;
+
 	if (n[0] == n[1])
 		return;
 	for (i = 0, p = s->s_mem; i < c->num; i++, p += c->size) {
-		if (slab_bufctl(s)[i] != BUFCTL_ACTIVE)
+		bool active = true;
+
+		for (j = s->free; j < c->num; j++) {
+			/* Skip freed item */
+			if (slab_bufctl(s)[j] == i) {
+				active = false;
+				break;
+			}
+		}
+		if (!active)
 			continue;
+
 		if (!add_caller(n, (unsigned long)*dbg_userword(c, p)))
 			return;
 	}
-- 
cgit 


From 16025177e1e16529451108faed257db95c7c9d6a Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 24 Oct 2013 10:07:46 +0900
Subject: slab: remove kmem_bufctl_t

Now, we changed the management method of free objects of the slab and
there is no need to use special value, BUFCTL_END, BUFCTL_FREE and
BUFCTL_ACTIVE. So remove them.

Acked-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
---
 mm/slab.c | 42 +++++++++++-------------------------------
 1 file changed, 11 insertions(+), 31 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index 05fe37eb4a57..6ced1ccf8abb 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -163,27 +163,7 @@
  */
 static bool pfmemalloc_active __read_mostly;
 
-/*
- * kmem_bufctl_t:
- *
- * Bufctl's are used for linking objs within a slab
- * linked offsets.
- *
- * This implementation relies on "struct page" for locating the cache &
- * slab an object belongs to.
- * This allows the bufctl structure to be small (one int), but limits
- * the number of objects a slab (not a cache) can contain when off-slab
- * bufctls are used. The limit is the size of the largest general cache
- * that does not use off-slab slabs.
- * For 32bit archs with 4 kB pages, is this 56.
- * This is not serious, as it is only for large objects, when it is unwise
- * to have too many per slab.
- * Note: This limit can be raised by introducing a general cache whose size
- * is less than 512 (PAGE_SIZE<<3), but greater than 256.
- */
-
-typedef unsigned int kmem_bufctl_t;
-#define	SLAB_LIMIT	(((kmem_bufctl_t)(~0U))-3)
+#define	SLAB_LIMIT	(((unsigned int)(~0U))-1)
 
 /*
  * struct slab
@@ -197,7 +177,7 @@ struct slab {
 		struct list_head list;
 		void *s_mem;		/* including colour offset */
 		unsigned int inuse;	/* num of objs active in slab */
-		kmem_bufctl_t free;
+		unsigned int free;
 	};
 };
 
@@ -613,7 +593,7 @@ static inline struct array_cache *cpu_cache_get(struct kmem_cache *cachep)
 
 static size_t slab_mgmt_size(size_t nr_objs, size_t align)
 {
-	return ALIGN(sizeof(struct slab)+nr_objs*sizeof(kmem_bufctl_t), align);
+	return ALIGN(sizeof(struct slab)+nr_objs*sizeof(unsigned int), align);
 }
 
 /*
@@ -633,7 +613,7 @@ static void cache_estimate(unsigned long gfporder, size_t buffer_size,
 	 * slab is used for:
 	 *
 	 * - The struct slab
-	 * - One kmem_bufctl_t for each object
+	 * - One unsigned int for each object
 	 * - Padding to respect alignment of @align
 	 * - @buffer_size bytes for each object
 	 *
@@ -658,7 +638,7 @@ static void cache_estimate(unsigned long gfporder, size_t buffer_size,
 		 * into account.
 		 */
 		nr_objs = (slab_size - sizeof(struct slab)) /
-			  (buffer_size + sizeof(kmem_bufctl_t));
+			  (buffer_size + sizeof(unsigned int));
 
 		/*
 		 * This calculated number will be either the right
@@ -2068,7 +2048,7 @@ static size_t calculate_slab_order(struct kmem_cache *cachep,
 			 * looping condition in cache_grow().
 			 */
 			offslab_limit = size - sizeof(struct slab);
-			offslab_limit /= sizeof(kmem_bufctl_t);
+			offslab_limit /= sizeof(unsigned int);
 
  			if (num > offslab_limit)
 				break;
@@ -2309,7 +2289,7 @@ __kmem_cache_create (struct kmem_cache *cachep, unsigned long flags)
 	if (!cachep->num)
 		return -E2BIG;
 
-	slab_size = ALIGN(cachep->num * sizeof(kmem_bufctl_t)
+	slab_size = ALIGN(cachep->num * sizeof(unsigned int)
 			  + sizeof(struct slab), cachep->align);
 
 	/*
@@ -2324,7 +2304,7 @@ __kmem_cache_create (struct kmem_cache *cachep, unsigned long flags)
 	if (flags & CFLGS_OFF_SLAB) {
 		/* really off slab. No need for manual alignment */
 		slab_size =
-		    cachep->num * sizeof(kmem_bufctl_t) + sizeof(struct slab);
+		    cachep->num * sizeof(unsigned int) + sizeof(struct slab);
 
 #ifdef CONFIG_PAGE_POISONING
 		/* If we're going to use the generic kernel_map_pages()
@@ -2603,9 +2583,9 @@ static struct slab *alloc_slabmgmt(struct kmem_cache *cachep,
 	return slabp;
 }
 
-static inline kmem_bufctl_t *slab_bufctl(struct slab *slabp)
+static inline unsigned int *slab_bufctl(struct slab *slabp)
 {
-	return (kmem_bufctl_t *) (slabp + 1);
+	return (unsigned int *) (slabp + 1);
 }
 
 static void cache_init_objs(struct kmem_cache *cachep,
@@ -2684,7 +2664,7 @@ static void slab_put_obj(struct kmem_cache *cachep, struct slab *slabp,
 {
 	unsigned int objnr = obj_to_index(cachep, slabp, objp);
 #if DEBUG
-	kmem_bufctl_t i;
+	unsigned int i;
 
 	/* Verify that the slab belongs to the intended node */
 	WARN_ON(page_to_nid(virt_to_page(objp)) != nodeid);
-- 
cgit 


From 45eed508de6cec3174040f800aaf90d60c7b5b5b Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 24 Oct 2013 10:07:47 +0900
Subject: slab: remove SLAB_LIMIT

It's useless now, so remove it.

Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
---
 mm/slab.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index 6ced1ccf8abb..c271d5b71093 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -163,8 +163,6 @@
  */
 static bool pfmemalloc_active __read_mostly;
 
-#define	SLAB_LIMIT	(((unsigned int)(~0U))-1)
-
 /*
  * struct slab
  *
@@ -626,8 +624,6 @@ static void cache_estimate(unsigned long gfporder, size_t buffer_size,
 		mgmt_size = 0;
 		nr_objs = slab_size / buffer_size;
 
-		if (nr_objs > SLAB_LIMIT)
-			nr_objs = SLAB_LIMIT;
 	} else {
 		/*
 		 * Ignore padding for the initial guess. The padding
@@ -648,9 +644,6 @@ static void cache_estimate(unsigned long gfporder, size_t buffer_size,
 		       > slab_size)
 			nr_objs--;
 
-		if (nr_objs > SLAB_LIMIT)
-			nr_objs = SLAB_LIMIT;
-
 		mgmt_size = slab_mgmt_size(nr_objs, align);
 	}
 	*num = nr_objs;
-- 
cgit 


From 106a74e13b329cf609c145dc198087c04f5f8ca5 Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 24 Oct 2013 10:07:48 +0900
Subject: slab: replace free and inuse in struct slab with newly introduced
 active

Now, free in struct slab is same meaning as inuse.
So, remove both and replace them with active.

Acked-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
---
 mm/slab.c | 54 +++++++++++++++++++++++++-----------------------------
 1 file changed, 25 insertions(+), 29 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index c271d5b71093..2ec2336a1ffc 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -174,8 +174,7 @@ struct slab {
 	struct {
 		struct list_head list;
 		void *s_mem;		/* including colour offset */
-		unsigned int inuse;	/* num of objs active in slab */
-		unsigned int free;
+		unsigned int active;	/* num of objs active in slab */
 	};
 };
 
@@ -1658,7 +1657,7 @@ slab_out_of_memory(struct kmem_cache *cachep, gfp_t gfpflags, int nodeid)
 			active_slabs++;
 		}
 		list_for_each_entry(slabp, &n->slabs_partial, list) {
-			active_objs += slabp->inuse;
+			active_objs += slabp->active;
 			active_slabs++;
 		}
 		list_for_each_entry(slabp, &n->slabs_free, list)
@@ -2451,7 +2450,7 @@ static int drain_freelist(struct kmem_cache *cache,
 
 		slabp = list_entry(p, struct slab, list);
 #if DEBUG
-		BUG_ON(slabp->inuse);
+		BUG_ON(slabp->active);
 #endif
 		list_del(&slabp->list);
 		/*
@@ -2570,9 +2569,8 @@ static struct slab *alloc_slabmgmt(struct kmem_cache *cachep,
 		slabp = addr + colour_off;
 		colour_off += cachep->slab_size;
 	}
-	slabp->inuse = 0;
+	slabp->active = 0;
 	slabp->s_mem = addr + colour_off;
-	slabp->free = 0;
 	return slabp;
 }
 
@@ -2642,12 +2640,11 @@ static void *slab_get_obj(struct kmem_cache *cachep, struct slab *slabp,
 {
 	void *objp;
 
-	slabp->inuse++;
-	objp = index_to_obj(cachep, slabp, slab_bufctl(slabp)[slabp->free]);
+	objp = index_to_obj(cachep, slabp, slab_bufctl(slabp)[slabp->active]);
+	slabp->active++;
 #if DEBUG
 	WARN_ON(page_to_nid(virt_to_page(objp)) != nodeid);
 #endif
-	slabp->free++;
 
 	return objp;
 }
@@ -2663,7 +2660,7 @@ static void slab_put_obj(struct kmem_cache *cachep, struct slab *slabp,
 	WARN_ON(page_to_nid(virt_to_page(objp)) != nodeid);
 
 	/* Verify double free bug */
-	for (i = slabp->free; i < cachep->num; i++) {
+	for (i = slabp->active; i < cachep->num; i++) {
 		if (slab_bufctl(slabp)[i] == objnr) {
 			printk(KERN_ERR "slab: double free detected in cache "
 					"'%s', objp %p\n", cachep->name, objp);
@@ -2671,9 +2668,8 @@ static void slab_put_obj(struct kmem_cache *cachep, struct slab *slabp,
 		}
 	}
 #endif
-	slabp->free--;
-	slab_bufctl(slabp)[slabp->free] = objnr;
-	slabp->inuse--;
+	slabp->active--;
+	slab_bufctl(slabp)[slabp->active] = objnr;
 }
 
 /*
@@ -2908,9 +2904,9 @@ retry:
 		 * there must be at least one object available for
 		 * allocation.
 		 */
-		BUG_ON(slabp->inuse >= cachep->num);
+		BUG_ON(slabp->active >= cachep->num);
 
-		while (slabp->inuse < cachep->num && batchcount--) {
+		while (slabp->active < cachep->num && batchcount--) {
 			STATS_INC_ALLOCED(cachep);
 			STATS_INC_ACTIVE(cachep);
 			STATS_SET_HIGH(cachep);
@@ -2921,7 +2917,7 @@ retry:
 
 		/* move slabp to correct slabp list: */
 		list_del(&slabp->list);
-		if (slabp->free == cachep->num)
+		if (slabp->active == cachep->num)
 			list_add(&slabp->list, &n->slabs_full);
 		else
 			list_add(&slabp->list, &n->slabs_partial);
@@ -3206,14 +3202,14 @@ retry:
 	STATS_INC_ACTIVE(cachep);
 	STATS_SET_HIGH(cachep);
 
-	BUG_ON(slabp->inuse == cachep->num);
+	BUG_ON(slabp->active == cachep->num);
 
 	obj = slab_get_obj(cachep, slabp, nodeid);
 	n->free_objects--;
 	/* move slabp to correct slabp list: */
 	list_del(&slabp->list);
 
-	if (slabp->free == cachep->num)
+	if (slabp->active == cachep->num)
 		list_add(&slabp->list, &n->slabs_full);
 	else
 		list_add(&slabp->list, &n->slabs_partial);
@@ -3380,7 +3376,7 @@ static void free_block(struct kmem_cache *cachep, void **objpp, int nr_objects,
 		n->free_objects++;
 
 		/* fixup slab chains */
-		if (slabp->inuse == 0) {
+		if (slabp->active == 0) {
 			if (n->free_objects > n->free_limit) {
 				n->free_objects -= cachep->num;
 				/* No need to drop any previously held
@@ -3441,7 +3437,7 @@ free_done:
 			struct slab *slabp;
 
 			slabp = list_entry(p, struct slab, list);
-			BUG_ON(slabp->inuse);
+			BUG_ON(slabp->active);
 
 			i++;
 			p = p->next;
@@ -4066,22 +4062,22 @@ void get_slabinfo(struct kmem_cache *cachep, struct slabinfo *sinfo)
 		spin_lock_irq(&n->list_lock);
 
 		list_for_each_entry(slabp, &n->slabs_full, list) {
-			if (slabp->inuse != cachep->num && !error)
+			if (slabp->active != cachep->num && !error)
 				error = "slabs_full accounting error";
 			active_objs += cachep->num;
 			active_slabs++;
 		}
 		list_for_each_entry(slabp, &n->slabs_partial, list) {
-			if (slabp->inuse == cachep->num && !error)
-				error = "slabs_partial inuse accounting error";
-			if (!slabp->inuse && !error)
-				error = "slabs_partial/inuse accounting error";
-			active_objs += slabp->inuse;
+			if (slabp->active == cachep->num && !error)
+				error = "slabs_partial accounting error";
+			if (!slabp->active && !error)
+				error = "slabs_partial accounting error";
+			active_objs += slabp->active;
 			active_slabs++;
 		}
 		list_for_each_entry(slabp, &n->slabs_free, list) {
-			if (slabp->inuse && !error)
-				error = "slabs_free/inuse accounting error";
+			if (slabp->active && !error)
+				error = "slabs_free accounting error";
 			num_slabs++;
 		}
 		free_objects += n->free_objects;
@@ -4243,7 +4239,7 @@ static void handle_slab(unsigned long *n, struct kmem_cache *c, struct slab *s)
 	for (i = 0, p = s->s_mem; i < c->num; i++, p += c->size) {
 		bool active = true;
 
-		for (j = s->free; j < c->num; j++) {
+		for (j = s->active; j < c->num; j++) {
 			/* Skip freed item */
 			if (slab_bufctl(s)[j] == i) {
 				active = false;
-- 
cgit 


From 8456a648cf44f14365f1f44de90a3da2526a4776 Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 24 Oct 2013 10:07:49 +0900
Subject: slab: use struct page for slab management

Now, there are a few field in struct slab, so we can overload these
over struct page. This will save some memory and reduce cache footprint.

After this change, slabp_cache and slab_size no longer related to
a struct slab, so rename them as freelist_cache and freelist_size.

These changes are just mechanical ones and there is no functional change.

Acked-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
---
 include/linux/mm_types.h |  21 ++--
 include/linux/slab_def.h |   4 +-
 mm/slab.c                | 306 ++++++++++++++++++++++-------------------------
 3 files changed, 158 insertions(+), 173 deletions(-)

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 959cb369b197..95bf0c5a7eb9 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -42,18 +42,22 @@ struct page {
 	/* First double word block */
 	unsigned long flags;		/* Atomic flags, some possibly
 					 * updated asynchronously */
-	struct address_space *mapping;	/* If low bit clear, points to
-					 * inode address_space, or NULL.
-					 * If page mapped as anonymous
-					 * memory, low bit is set, and
-					 * it points to anon_vma object:
-					 * see PAGE_MAPPING_ANON below.
-					 */
+	union {
+		struct address_space *mapping;	/* If low bit clear, points to
+						 * inode address_space, or NULL.
+						 * If page mapped as anonymous
+						 * memory, low bit is set, and
+						 * it points to anon_vma object:
+						 * see PAGE_MAPPING_ANON below.
+						 */
+		void *s_mem;			/* slab first object */
+	};
+
 	/* Second double word */
 	struct {
 		union {
 			pgoff_t index;		/* Our offset within mapping. */
-			void *freelist;		/* slub/slob first free object */
+			void *freelist;		/* sl[aou]b first free object */
 			bool pfmemalloc;	/* If set by the page allocator,
 						 * ALLOC_NO_WATERMARKS was set
 						 * and the low watermark was not
@@ -109,6 +113,7 @@ struct page {
 				};
 				atomic_t _count;		/* Usage count, see below. */
 			};
+			unsigned int active;	/* SLAB */
 		};
 	};
 
diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h
index cd401580bdd3..ca82e8ff89fa 100644
--- a/include/linux/slab_def.h
+++ b/include/linux/slab_def.h
@@ -41,8 +41,8 @@ struct kmem_cache {
 
 	size_t colour;			/* cache colouring range */
 	unsigned int colour_off;	/* colour offset */
-	struct kmem_cache *slabp_cache;
-	unsigned int slab_size;
+	struct kmem_cache *freelist_cache;
+	unsigned int freelist_size;
 
 	/* constructor func */
 	void (*ctor)(void *obj);
diff --git a/mm/slab.c b/mm/slab.c
index 2ec2336a1ffc..0e7f2e73e08e 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -163,21 +163,6 @@
  */
 static bool pfmemalloc_active __read_mostly;
 
-/*
- * struct slab
- *
- * Manages the objs in a slab. Placed either at the beginning of mem allocated
- * for a slab, or allocated from an general cache.
- * Slabs are chained into three list: fully used, partial, fully free slabs.
- */
-struct slab {
-	struct {
-		struct list_head list;
-		void *s_mem;		/* including colour offset */
-		unsigned int active;	/* num of objs active in slab */
-	};
-};
-
 /*
  * struct array_cache
  *
@@ -405,18 +390,10 @@ static inline struct kmem_cache *virt_to_cache(const void *obj)
 	return page->slab_cache;
 }
 
-static inline struct slab *virt_to_slab(const void *obj)
-{
-	struct page *page = virt_to_head_page(obj);
-
-	VM_BUG_ON(!PageSlab(page));
-	return page->slab_page;
-}
-
-static inline void *index_to_obj(struct kmem_cache *cache, struct slab *slab,
+static inline void *index_to_obj(struct kmem_cache *cache, struct page *page,
 				 unsigned int idx)
 {
-	return slab->s_mem + cache->size * idx;
+	return page->s_mem + cache->size * idx;
 }
 
 /*
@@ -426,9 +403,9 @@ static inline void *index_to_obj(struct kmem_cache *cache, struct slab *slab,
  *   reciprocal_divide(offset, cache->reciprocal_buffer_size)
  */
 static inline unsigned int obj_to_index(const struct kmem_cache *cache,
-					const struct slab *slab, void *obj)
+					const struct page *page, void *obj)
 {
-	u32 offset = (obj - slab->s_mem);
+	u32 offset = (obj - page->s_mem);
 	return reciprocal_divide(offset, cache->reciprocal_buffer_size);
 }
 
@@ -590,7 +567,7 @@ static inline struct array_cache *cpu_cache_get(struct kmem_cache *cachep)
 
 static size_t slab_mgmt_size(size_t nr_objs, size_t align)
 {
-	return ALIGN(sizeof(struct slab)+nr_objs*sizeof(unsigned int), align);
+	return ALIGN(nr_objs * sizeof(unsigned int), align);
 }
 
 /*
@@ -609,7 +586,6 @@ static void cache_estimate(unsigned long gfporder, size_t buffer_size,
 	 * on it. For the latter case, the memory allocated for a
 	 * slab is used for:
 	 *
-	 * - The struct slab
 	 * - One unsigned int for each object
 	 * - Padding to respect alignment of @align
 	 * - @buffer_size bytes for each object
@@ -632,8 +608,7 @@ static void cache_estimate(unsigned long gfporder, size_t buffer_size,
 		 * into the memory allocation when taking the padding
 		 * into account.
 		 */
-		nr_objs = (slab_size - sizeof(struct slab)) /
-			  (buffer_size + sizeof(unsigned int));
+		nr_objs = (slab_size) / (buffer_size + sizeof(unsigned int));
 
 		/*
 		 * This calculated number will be either the right
@@ -773,11 +748,11 @@ static struct array_cache *alloc_arraycache(int node, int entries,
 	return nc;
 }
 
-static inline bool is_slab_pfmemalloc(struct slab *slabp)
+static inline bool is_slab_pfmemalloc(struct page *page)
 {
-	struct page *page = virt_to_page(slabp->s_mem);
+	struct page *mem_page = virt_to_page(page->s_mem);
 
-	return PageSlabPfmemalloc(page);
+	return PageSlabPfmemalloc(mem_page);
 }
 
 /* Clears pfmemalloc_active if no slabs have pfmalloc set */
@@ -785,23 +760,23 @@ static void recheck_pfmemalloc_active(struct kmem_cache *cachep,
 						struct array_cache *ac)
 {
 	struct kmem_cache_node *n = cachep->node[numa_mem_id()];
-	struct slab *slabp;
+	struct page *page;
 	unsigned long flags;
 
 	if (!pfmemalloc_active)
 		return;
 
 	spin_lock_irqsave(&n->list_lock, flags);
-	list_for_each_entry(slabp, &n->slabs_full, list)
-		if (is_slab_pfmemalloc(slabp))
+	list_for_each_entry(page, &n->slabs_full, lru)
+		if (is_slab_pfmemalloc(page))
 			goto out;
 
-	list_for_each_entry(slabp, &n->slabs_partial, list)
-		if (is_slab_pfmemalloc(slabp))
+	list_for_each_entry(page, &n->slabs_partial, lru)
+		if (is_slab_pfmemalloc(page))
 			goto out;
 
-	list_for_each_entry(slabp, &n->slabs_free, list)
-		if (is_slab_pfmemalloc(slabp))
+	list_for_each_entry(page, &n->slabs_free, lru)
+		if (is_slab_pfmemalloc(page))
 			goto out;
 
 	pfmemalloc_active = false;
@@ -841,8 +816,8 @@ static void *__ac_get_obj(struct kmem_cache *cachep, struct array_cache *ac,
 		 */
 		n = cachep->node[numa_mem_id()];
 		if (!list_empty(&n->slabs_free) && force_refill) {
-			struct slab *slabp = virt_to_slab(objp);
-			ClearPageSlabPfmemalloc(virt_to_head_page(slabp->s_mem));
+			struct page *page = virt_to_head_page(objp);
+			ClearPageSlabPfmemalloc(virt_to_head_page(page->s_mem));
 			clear_obj_pfmemalloc(&objp);
 			recheck_pfmemalloc_active(cachep, ac);
 			return objp;
@@ -874,9 +849,9 @@ static void *__ac_put_obj(struct kmem_cache *cachep, struct array_cache *ac,
 {
 	if (unlikely(pfmemalloc_active)) {
 		/* Some pfmemalloc slabs exist, check if this is one */
-		struct slab *slabp = virt_to_slab(objp);
-		struct page *page = virt_to_head_page(slabp->s_mem);
-		if (PageSlabPfmemalloc(page))
+		struct page *page = virt_to_head_page(objp);
+		struct page *mem_page = virt_to_head_page(page->s_mem);
+		if (PageSlabPfmemalloc(mem_page))
 			set_obj_pfmemalloc(&objp);
 	}
 
@@ -1633,7 +1608,7 @@ static noinline void
 slab_out_of_memory(struct kmem_cache *cachep, gfp_t gfpflags, int nodeid)
 {
 	struct kmem_cache_node *n;
-	struct slab *slabp;
+	struct page *page;
 	unsigned long flags;
 	int node;
 
@@ -1652,15 +1627,15 @@ slab_out_of_memory(struct kmem_cache *cachep, gfp_t gfpflags, int nodeid)
 			continue;
 
 		spin_lock_irqsave(&n->list_lock, flags);
-		list_for_each_entry(slabp, &n->slabs_full, list) {
+		list_for_each_entry(page, &n->slabs_full, lru) {
 			active_objs += cachep->num;
 			active_slabs++;
 		}
-		list_for_each_entry(slabp, &n->slabs_partial, list) {
-			active_objs += slabp->active;
+		list_for_each_entry(page, &n->slabs_partial, lru) {
+			active_objs += page->active;
 			active_slabs++;
 		}
-		list_for_each_entry(slabp, &n->slabs_free, list)
+		list_for_each_entry(page, &n->slabs_free, lru)
 			num_slabs++;
 
 		free_objects += n->free_objects;
@@ -1746,6 +1721,8 @@ static void kmem_freepages(struct kmem_cache *cachep, struct page *page)
 	BUG_ON(!PageSlab(page));
 	__ClearPageSlabPfmemalloc(page);
 	__ClearPageSlab(page);
+	page_mapcount_reset(page);
+	page->mapping = NULL;
 
 	memcg_release_pages(cachep, cachep->gfporder);
 	if (current->reclaim_state)
@@ -1910,19 +1887,19 @@ static void check_poison_obj(struct kmem_cache *cachep, void *objp)
 		/* Print some data about the neighboring objects, if they
 		 * exist:
 		 */
-		struct slab *slabp = virt_to_slab(objp);
+		struct page *page = virt_to_head_page(objp);
 		unsigned int objnr;
 
-		objnr = obj_to_index(cachep, slabp, objp);
+		objnr = obj_to_index(cachep, page, objp);
 		if (objnr) {
-			objp = index_to_obj(cachep, slabp, objnr - 1);
+			objp = index_to_obj(cachep, page, objnr - 1);
 			realobj = (char *)objp + obj_offset(cachep);
 			printk(KERN_ERR "Prev obj: start=%p, len=%d\n",
 			       realobj, size);
 			print_objinfo(cachep, objp, 2);
 		}
 		if (objnr + 1 < cachep->num) {
-			objp = index_to_obj(cachep, slabp, objnr + 1);
+			objp = index_to_obj(cachep, page, objnr + 1);
 			realobj = (char *)objp + obj_offset(cachep);
 			printk(KERN_ERR "Next obj: start=%p, len=%d\n",
 			       realobj, size);
@@ -1933,11 +1910,12 @@ static void check_poison_obj(struct kmem_cache *cachep, void *objp)
 #endif
 
 #if DEBUG
-static void slab_destroy_debugcheck(struct kmem_cache *cachep, struct slab *slabp)
+static void slab_destroy_debugcheck(struct kmem_cache *cachep,
+						struct page *page)
 {
 	int i;
 	for (i = 0; i < cachep->num; i++) {
-		void *objp = index_to_obj(cachep, slabp, i);
+		void *objp = index_to_obj(cachep, page, i);
 
 		if (cachep->flags & SLAB_POISON) {
 #ifdef CONFIG_DEBUG_PAGEALLOC
@@ -1962,7 +1940,8 @@ static void slab_destroy_debugcheck(struct kmem_cache *cachep, struct slab *slab
 	}
 }
 #else
-static void slab_destroy_debugcheck(struct kmem_cache *cachep, struct slab *slabp)
+static void slab_destroy_debugcheck(struct kmem_cache *cachep,
+						struct page *page)
 {
 }
 #endif
@@ -1976,11 +1955,12 @@ static void slab_destroy_debugcheck(struct kmem_cache *cachep, struct slab *slab
  * Before calling the slab must have been unlinked from the cache.  The
  * cache-lock is not held/needed.
  */
-static void slab_destroy(struct kmem_cache *cachep, struct slab *slabp)
+static void slab_destroy(struct kmem_cache *cachep, struct page *page)
 {
-	struct page *page = virt_to_head_page(slabp->s_mem);
+	struct freelist *freelist;
 
-	slab_destroy_debugcheck(cachep, slabp);
+	freelist = page->freelist;
+	slab_destroy_debugcheck(cachep, page);
 	if (unlikely(cachep->flags & SLAB_DESTROY_BY_RCU)) {
 		struct rcu_head *head;
 
@@ -1998,11 +1978,11 @@ static void slab_destroy(struct kmem_cache *cachep, struct slab *slabp)
 	}
 
 	/*
-	 * From now on, we don't use slab management
+	 * From now on, we don't use freelist
 	 * although actual page can be freed in rcu context
 	 */
 	if (OFF_SLAB(cachep))
-		kmem_cache_free(cachep->slabp_cache, slabp);
+		kmem_cache_free(cachep->freelist_cache, freelist);
 }
 
 /**
@@ -2039,7 +2019,7 @@ static size_t calculate_slab_order(struct kmem_cache *cachep,
 			 * use off-slab slabs. Needed to avoid a possible
 			 * looping condition in cache_grow().
 			 */
-			offslab_limit = size - sizeof(struct slab);
+			offslab_limit = size;
 			offslab_limit /= sizeof(unsigned int);
 
  			if (num > offslab_limit)
@@ -2162,7 +2142,7 @@ static int __init_refok setup_cpu_cache(struct kmem_cache *cachep, gfp_t gfp)
 int
 __kmem_cache_create (struct kmem_cache *cachep, unsigned long flags)
 {
-	size_t left_over, slab_size, ralign;
+	size_t left_over, freelist_size, ralign;
 	gfp_t gfp;
 	int err;
 	size_t size = cachep->size;
@@ -2281,22 +2261,21 @@ __kmem_cache_create (struct kmem_cache *cachep, unsigned long flags)
 	if (!cachep->num)
 		return -E2BIG;
 
-	slab_size = ALIGN(cachep->num * sizeof(unsigned int)
-			  + sizeof(struct slab), cachep->align);
+	freelist_size =
+		ALIGN(cachep->num * sizeof(unsigned int), cachep->align);
 
 	/*
 	 * If the slab has been placed off-slab, and we have enough space then
 	 * move it on-slab. This is at the expense of any extra colouring.
 	 */
-	if (flags & CFLGS_OFF_SLAB && left_over >= slab_size) {
+	if (flags & CFLGS_OFF_SLAB && left_over >= freelist_size) {
 		flags &= ~CFLGS_OFF_SLAB;
-		left_over -= slab_size;
+		left_over -= freelist_size;
 	}
 
 	if (flags & CFLGS_OFF_SLAB) {
 		/* really off slab. No need for manual alignment */
-		slab_size =
-		    cachep->num * sizeof(unsigned int) + sizeof(struct slab);
+		freelist_size = cachep->num * sizeof(unsigned int);
 
 #ifdef CONFIG_PAGE_POISONING
 		/* If we're going to use the generic kernel_map_pages()
@@ -2313,7 +2292,7 @@ __kmem_cache_create (struct kmem_cache *cachep, unsigned long flags)
 	if (cachep->colour_off < cachep->align)
 		cachep->colour_off = cachep->align;
 	cachep->colour = left_over / cachep->colour_off;
-	cachep->slab_size = slab_size;
+	cachep->freelist_size = freelist_size;
 	cachep->flags = flags;
 	cachep->allocflags = __GFP_COMP;
 	if (CONFIG_ZONE_DMA_FLAG && (flags & SLAB_CACHE_DMA))
@@ -2322,7 +2301,7 @@ __kmem_cache_create (struct kmem_cache *cachep, unsigned long flags)
 	cachep->reciprocal_buffer_size = reciprocal_value(size);
 
 	if (flags & CFLGS_OFF_SLAB) {
-		cachep->slabp_cache = kmalloc_slab(slab_size, 0u);
+		cachep->freelist_cache = kmalloc_slab(freelist_size, 0u);
 		/*
 		 * This is a possibility for one of the malloc_sizes caches.
 		 * But since we go off slab only for object size greater than
@@ -2330,7 +2309,7 @@ __kmem_cache_create (struct kmem_cache *cachep, unsigned long flags)
 		 * this should not happen at all.
 		 * But leave a BUG_ON for some lucky dude.
 		 */
-		BUG_ON(ZERO_OR_NULL_PTR(cachep->slabp_cache));
+		BUG_ON(ZERO_OR_NULL_PTR(cachep->freelist_cache));
 	}
 
 	err = setup_cpu_cache(cachep, gfp);
@@ -2436,7 +2415,7 @@ static int drain_freelist(struct kmem_cache *cache,
 {
 	struct list_head *p;
 	int nr_freed;
-	struct slab *slabp;
+	struct page *page;
 
 	nr_freed = 0;
 	while (nr_freed < tofree && !list_empty(&n->slabs_free)) {
@@ -2448,18 +2427,18 @@ static int drain_freelist(struct kmem_cache *cache,
 			goto out;
 		}
 
-		slabp = list_entry(p, struct slab, list);
+		page = list_entry(p, struct page, lru);
 #if DEBUG
-		BUG_ON(slabp->active);
+		BUG_ON(page->active);
 #endif
-		list_del(&slabp->list);
+		list_del(&page->lru);
 		/*
 		 * Safe to drop the lock. The slab is no longer linked
 		 * to the cache.
 		 */
 		n->free_objects -= cache->num;
 		spin_unlock_irq(&n->list_lock);
-		slab_destroy(cache, slabp);
+		slab_destroy(cache, page);
 		nr_freed++;
 	}
 out:
@@ -2542,18 +2521,18 @@ int __kmem_cache_shutdown(struct kmem_cache *cachep)
  * descriptors in kmem_cache_create, we search through the malloc_sizes array.
  * If we are creating a malloc_sizes cache here it would not be visible to
  * kmem_find_general_cachep till the initialization is complete.
- * Hence we cannot have slabp_cache same as the original cache.
+ * Hence we cannot have freelist_cache same as the original cache.
  */
-static struct slab *alloc_slabmgmt(struct kmem_cache *cachep,
+static struct freelist *alloc_slabmgmt(struct kmem_cache *cachep,
 				   struct page *page, int colour_off,
 				   gfp_t local_flags, int nodeid)
 {
-	struct slab *slabp;
+	struct freelist *freelist;
 	void *addr = page_address(page);
 
 	if (OFF_SLAB(cachep)) {
 		/* Slab management obj is off-slab. */
-		slabp = kmem_cache_alloc_node(cachep->slabp_cache,
+		freelist = kmem_cache_alloc_node(cachep->freelist_cache,
 					      local_flags, nodeid);
 		/*
 		 * If the first object in the slab is leaked (it's allocated
@@ -2561,31 +2540,31 @@ static struct slab *alloc_slabmgmt(struct kmem_cache *cachep,
 		 * kmemleak does not treat the ->s_mem pointer as a reference
 		 * to the object. Otherwise we will not report the leak.
 		 */
-		kmemleak_scan_area(&slabp->list, sizeof(struct list_head),
+		kmemleak_scan_area(&page->lru, sizeof(struct list_head),
 				   local_flags);
-		if (!slabp)
+		if (!freelist)
 			return NULL;
 	} else {
-		slabp = addr + colour_off;
-		colour_off += cachep->slab_size;
+		freelist = addr + colour_off;
+		colour_off += cachep->freelist_size;
 	}
-	slabp->active = 0;
-	slabp->s_mem = addr + colour_off;
-	return slabp;
+	page->active = 0;
+	page->s_mem = addr + colour_off;
+	return freelist;
 }
 
-static inline unsigned int *slab_bufctl(struct slab *slabp)
+static inline unsigned int *slab_bufctl(struct page *page)
 {
-	return (unsigned int *) (slabp + 1);
+	return (unsigned int *)(page->freelist);
 }
 
 static void cache_init_objs(struct kmem_cache *cachep,
-			    struct slab *slabp)
+			    struct page *page)
 {
 	int i;
 
 	for (i = 0; i < cachep->num; i++) {
-		void *objp = index_to_obj(cachep, slabp, i);
+		void *objp = index_to_obj(cachep, page, i);
 #if DEBUG
 		/* need to poison the objs? */
 		if (cachep->flags & SLAB_POISON)
@@ -2621,7 +2600,7 @@ static void cache_init_objs(struct kmem_cache *cachep,
 		if (cachep->ctor)
 			cachep->ctor(objp);
 #endif
-		slab_bufctl(slabp)[i] = i;
+		slab_bufctl(page)[i] = i;
 	}
 }
 
@@ -2635,13 +2614,13 @@ static void kmem_flagcheck(struct kmem_cache *cachep, gfp_t flags)
 	}
 }
 
-static void *slab_get_obj(struct kmem_cache *cachep, struct slab *slabp,
+static void *slab_get_obj(struct kmem_cache *cachep, struct page *page,
 				int nodeid)
 {
 	void *objp;
 
-	objp = index_to_obj(cachep, slabp, slab_bufctl(slabp)[slabp->active]);
-	slabp->active++;
+	objp = index_to_obj(cachep, page, slab_bufctl(page)[page->active]);
+	page->active++;
 #if DEBUG
 	WARN_ON(page_to_nid(virt_to_page(objp)) != nodeid);
 #endif
@@ -2649,10 +2628,10 @@ static void *slab_get_obj(struct kmem_cache *cachep, struct slab *slabp,
 	return objp;
 }
 
-static void slab_put_obj(struct kmem_cache *cachep, struct slab *slabp,
+static void slab_put_obj(struct kmem_cache *cachep, struct page *page,
 				void *objp, int nodeid)
 {
-	unsigned int objnr = obj_to_index(cachep, slabp, objp);
+	unsigned int objnr = obj_to_index(cachep, page, objp);
 #if DEBUG
 	unsigned int i;
 
@@ -2660,16 +2639,16 @@ static void slab_put_obj(struct kmem_cache *cachep, struct slab *slabp,
 	WARN_ON(page_to_nid(virt_to_page(objp)) != nodeid);
 
 	/* Verify double free bug */
-	for (i = slabp->active; i < cachep->num; i++) {
-		if (slab_bufctl(slabp)[i] == objnr) {
+	for (i = page->active; i < cachep->num; i++) {
+		if (slab_bufctl(page)[i] == objnr) {
 			printk(KERN_ERR "slab: double free detected in cache "
 					"'%s', objp %p\n", cachep->name, objp);
 			BUG();
 		}
 	}
 #endif
-	slabp->active--;
-	slab_bufctl(slabp)[slabp->active] = objnr;
+	page->active--;
+	slab_bufctl(page)[page->active] = objnr;
 }
 
 /*
@@ -2677,11 +2656,11 @@ static void slab_put_obj(struct kmem_cache *cachep, struct slab *slabp,
  * for the slab allocator to be able to lookup the cache and slab of a
  * virtual address for kfree, ksize, and slab debugging.
  */
-static void slab_map_pages(struct kmem_cache *cache, struct slab *slab,
-			   struct page *page)
+static void slab_map_pages(struct kmem_cache *cache, struct page *page,
+			   struct freelist *freelist)
 {
 	page->slab_cache = cache;
-	page->slab_page = slab;
+	page->freelist = freelist;
 }
 
 /*
@@ -2691,7 +2670,7 @@ static void slab_map_pages(struct kmem_cache *cache, struct slab *slab,
 static int cache_grow(struct kmem_cache *cachep,
 		gfp_t flags, int nodeid, struct page *page)
 {
-	struct slab *slabp;
+	struct freelist *freelist;
 	size_t offset;
 	gfp_t local_flags;
 	struct kmem_cache_node *n;
@@ -2738,14 +2717,14 @@ static int cache_grow(struct kmem_cache *cachep,
 		goto failed;
 
 	/* Get slab management. */
-	slabp = alloc_slabmgmt(cachep, page, offset,
+	freelist = alloc_slabmgmt(cachep, page, offset,
 			local_flags & ~GFP_CONSTRAINT_MASK, nodeid);
-	if (!slabp)
+	if (!freelist)
 		goto opps1;
 
-	slab_map_pages(cachep, slabp, page);
+	slab_map_pages(cachep, page, freelist);
 
-	cache_init_objs(cachep, slabp);
+	cache_init_objs(cachep, page);
 
 	if (local_flags & __GFP_WAIT)
 		local_irq_disable();
@@ -2753,7 +2732,7 @@ static int cache_grow(struct kmem_cache *cachep,
 	spin_lock(&n->list_lock);
 
 	/* Make slab active. */
-	list_add_tail(&slabp->list, &(n->slabs_free));
+	list_add_tail(&page->lru, &(n->slabs_free));
 	STATS_INC_GROWN(cachep);
 	n->free_objects += cachep->num;
 	spin_unlock(&n->list_lock);
@@ -2808,13 +2787,13 @@ static void *cache_free_debugcheck(struct kmem_cache *cachep, void *objp,
 				   unsigned long caller)
 {
 	unsigned int objnr;
-	struct slab *slabp;
+	struct page *page;
 
 	BUG_ON(virt_to_cache(objp) != cachep);
 
 	objp -= obj_offset(cachep);
 	kfree_debugcheck(objp);
-	slabp = virt_to_slab(objp);
+	page = virt_to_head_page(objp);
 
 	if (cachep->flags & SLAB_RED_ZONE) {
 		verify_redzone_free(cachep, objp);
@@ -2824,10 +2803,10 @@ static void *cache_free_debugcheck(struct kmem_cache *cachep, void *objp,
 	if (cachep->flags & SLAB_STORE_USER)
 		*dbg_userword(cachep, objp) = (void *)caller;
 
-	objnr = obj_to_index(cachep, slabp, objp);
+	objnr = obj_to_index(cachep, page, objp);
 
 	BUG_ON(objnr >= cachep->num);
-	BUG_ON(objp != index_to_obj(cachep, slabp, objnr));
+	BUG_ON(objp != index_to_obj(cachep, page, objnr));
 
 	if (cachep->flags & SLAB_POISON) {
 #ifdef CONFIG_DEBUG_PAGEALLOC
@@ -2886,7 +2865,7 @@ retry:
 
 	while (batchcount > 0) {
 		struct list_head *entry;
-		struct slab *slabp;
+		struct page *page;
 		/* Get slab alloc is to come from. */
 		entry = n->slabs_partial.next;
 		if (entry == &n->slabs_partial) {
@@ -2896,7 +2875,7 @@ retry:
 				goto must_grow;
 		}
 
-		slabp = list_entry(entry, struct slab, list);
+		page = list_entry(entry, struct page, lru);
 		check_spinlock_acquired(cachep);
 
 		/*
@@ -2904,23 +2883,23 @@ retry:
 		 * there must be at least one object available for
 		 * allocation.
 		 */
-		BUG_ON(slabp->active >= cachep->num);
+		BUG_ON(page->active >= cachep->num);
 
-		while (slabp->active < cachep->num && batchcount--) {
+		while (page->active < cachep->num && batchcount--) {
 			STATS_INC_ALLOCED(cachep);
 			STATS_INC_ACTIVE(cachep);
 			STATS_SET_HIGH(cachep);
 
-			ac_put_obj(cachep, ac, slab_get_obj(cachep, slabp,
+			ac_put_obj(cachep, ac, slab_get_obj(cachep, page,
 									node));
 		}
 
 		/* move slabp to correct slabp list: */
-		list_del(&slabp->list);
-		if (slabp->active == cachep->num)
-			list_add(&slabp->list, &n->slabs_full);
+		list_del(&page->lru);
+		if (page->active == cachep->num)
+			list_add(&page->list, &n->slabs_full);
 		else
-			list_add(&slabp->list, &n->slabs_partial);
+			list_add(&page->list, &n->slabs_partial);
 	}
 
 must_grow:
@@ -3175,7 +3154,7 @@ static void *____cache_alloc_node(struct kmem_cache *cachep, gfp_t flags,
 				int nodeid)
 {
 	struct list_head *entry;
-	struct slab *slabp;
+	struct page *page;
 	struct kmem_cache_node *n;
 	void *obj;
 	int x;
@@ -3195,24 +3174,24 @@ retry:
 			goto must_grow;
 	}
 
-	slabp = list_entry(entry, struct slab, list);
+	page = list_entry(entry, struct page, lru);
 	check_spinlock_acquired_node(cachep, nodeid);
 
 	STATS_INC_NODEALLOCS(cachep);
 	STATS_INC_ACTIVE(cachep);
 	STATS_SET_HIGH(cachep);
 
-	BUG_ON(slabp->active == cachep->num);
+	BUG_ON(page->active == cachep->num);
 
-	obj = slab_get_obj(cachep, slabp, nodeid);
+	obj = slab_get_obj(cachep, page, nodeid);
 	n->free_objects--;
 	/* move slabp to correct slabp list: */
-	list_del(&slabp->list);
+	list_del(&page->lru);
 
-	if (slabp->active == cachep->num)
-		list_add(&slabp->list, &n->slabs_full);
+	if (page->active == cachep->num)
+		list_add(&page->lru, &n->slabs_full);
 	else
-		list_add(&slabp->list, &n->slabs_partial);
+		list_add(&page->lru, &n->slabs_partial);
 
 	spin_unlock(&n->list_lock);
 	goto done;
@@ -3362,21 +3341,21 @@ static void free_block(struct kmem_cache *cachep, void **objpp, int nr_objects,
 
 	for (i = 0; i < nr_objects; i++) {
 		void *objp;
-		struct slab *slabp;
+		struct page *page;
 
 		clear_obj_pfmemalloc(&objpp[i]);
 		objp = objpp[i];
 
-		slabp = virt_to_slab(objp);
+		page = virt_to_head_page(objp);
 		n = cachep->node[node];
-		list_del(&slabp->list);
+		list_del(&page->lru);
 		check_spinlock_acquired_node(cachep, node);
-		slab_put_obj(cachep, slabp, objp, node);
+		slab_put_obj(cachep, page, objp, node);
 		STATS_DEC_ACTIVE(cachep);
 		n->free_objects++;
 
 		/* fixup slab chains */
-		if (slabp->active == 0) {
+		if (page->active == 0) {
 			if (n->free_objects > n->free_limit) {
 				n->free_objects -= cachep->num;
 				/* No need to drop any previously held
@@ -3385,16 +3364,16 @@ static void free_block(struct kmem_cache *cachep, void **objpp, int nr_objects,
 				 * a different cache, refer to comments before
 				 * alloc_slabmgmt.
 				 */
-				slab_destroy(cachep, slabp);
+				slab_destroy(cachep, page);
 			} else {
-				list_add(&slabp->list, &n->slabs_free);
+				list_add(&page->lru, &n->slabs_free);
 			}
 		} else {
 			/* Unconditionally move a slab to the end of the
 			 * partial list on free - maximum time for the
 			 * other objects to be freed, too.
 			 */
-			list_add_tail(&slabp->list, &n->slabs_partial);
+			list_add_tail(&page->lru, &n->slabs_partial);
 		}
 	}
 }
@@ -3434,10 +3413,10 @@ free_done:
 
 		p = n->slabs_free.next;
 		while (p != &(n->slabs_free)) {
-			struct slab *slabp;
+			struct page *page;
 
-			slabp = list_entry(p, struct slab, list);
-			BUG_ON(slabp->active);
+			page = list_entry(p, struct page, lru);
+			BUG_ON(page->active);
 
 			i++;
 			p = p->next;
@@ -4041,7 +4020,7 @@ out:
 #ifdef CONFIG_SLABINFO
 void get_slabinfo(struct kmem_cache *cachep, struct slabinfo *sinfo)
 {
-	struct slab *slabp;
+	struct page *page;
 	unsigned long active_objs;
 	unsigned long num_objs;
 	unsigned long active_slabs = 0;
@@ -4061,22 +4040,22 @@ void get_slabinfo(struct kmem_cache *cachep, struct slabinfo *sinfo)
 		check_irq_on();
 		spin_lock_irq(&n->list_lock);
 
-		list_for_each_entry(slabp, &n->slabs_full, list) {
-			if (slabp->active != cachep->num && !error)
+		list_for_each_entry(page, &n->slabs_full, lru) {
+			if (page->active != cachep->num && !error)
 				error = "slabs_full accounting error";
 			active_objs += cachep->num;
 			active_slabs++;
 		}
-		list_for_each_entry(slabp, &n->slabs_partial, list) {
-			if (slabp->active == cachep->num && !error)
+		list_for_each_entry(page, &n->slabs_partial, lru) {
+			if (page->active == cachep->num && !error)
 				error = "slabs_partial accounting error";
-			if (!slabp->active && !error)
+			if (!page->active && !error)
 				error = "slabs_partial accounting error";
-			active_objs += slabp->active;
+			active_objs += page->active;
 			active_slabs++;
 		}
-		list_for_each_entry(slabp, &n->slabs_free, list) {
-			if (slabp->active && !error)
+		list_for_each_entry(page, &n->slabs_free, lru) {
+			if (page->active && !error)
 				error = "slabs_free accounting error";
 			num_slabs++;
 		}
@@ -4229,19 +4208,20 @@ static inline int add_caller(unsigned long *n, unsigned long v)
 	return 1;
 }
 
-static void handle_slab(unsigned long *n, struct kmem_cache *c, struct slab *s)
+static void handle_slab(unsigned long *n, struct kmem_cache *c,
+						struct page *page)
 {
 	void *p;
 	int i, j;
 
 	if (n[0] == n[1])
 		return;
-	for (i = 0, p = s->s_mem; i < c->num; i++, p += c->size) {
+	for (i = 0, p = page->s_mem; i < c->num; i++, p += c->size) {
 		bool active = true;
 
-		for (j = s->active; j < c->num; j++) {
+		for (j = page->active; j < c->num; j++) {
 			/* Skip freed item */
-			if (slab_bufctl(s)[j] == i) {
+			if (slab_bufctl(page)[j] == i) {
 				active = false;
 				break;
 			}
@@ -4273,7 +4253,7 @@ static void show_symbol(struct seq_file *m, unsigned long address)
 static int leaks_show(struct seq_file *m, void *p)
 {
 	struct kmem_cache *cachep = list_entry(p, struct kmem_cache, list);
-	struct slab *slabp;
+	struct page *page;
 	struct kmem_cache_node *n;
 	const char *name;
 	unsigned long *x = m->private;
@@ -4297,10 +4277,10 @@ static int leaks_show(struct seq_file *m, void *p)
 		check_irq_on();
 		spin_lock_irq(&n->list_lock);
 
-		list_for_each_entry(slabp, &n->slabs_full, list)
-			handle_slab(x, cachep, slabp);
-		list_for_each_entry(slabp, &n->slabs_partial, list)
-			handle_slab(x, cachep, slabp);
+		list_for_each_entry(page, &n->slabs_full, lru)
+			handle_slab(x, cachep, page);
+		list_for_each_entry(page, &n->slabs_partial, lru)
+			handle_slab(x, cachep, page);
 		spin_unlock_irq(&n->list_lock);
 	}
 	name = cachep->name;
-- 
cgit 


From 7ecccf9d1e416fe61bb1caa0a94605b522feeaf3 Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 24 Oct 2013 10:07:50 +0900
Subject: slab: remove useless statement for checking pfmemalloc

Now, virt_to_page(page->s_mem) is same as the page,
because slab use this structure for management.
So remove useless statement.

Acked-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
---
 mm/slab.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index 0e7f2e73e08e..fbb594f2259a 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -750,9 +750,7 @@ static struct array_cache *alloc_arraycache(int node, int entries,
 
 static inline bool is_slab_pfmemalloc(struct page *page)
 {
-	struct page *mem_page = virt_to_page(page->s_mem);
-
-	return PageSlabPfmemalloc(mem_page);
+	return PageSlabPfmemalloc(page);
 }
 
 /* Clears pfmemalloc_active if no slabs have pfmalloc set */
@@ -817,7 +815,7 @@ static void *__ac_get_obj(struct kmem_cache *cachep, struct array_cache *ac,
 		n = cachep->node[numa_mem_id()];
 		if (!list_empty(&n->slabs_free) && force_refill) {
 			struct page *page = virt_to_head_page(objp);
-			ClearPageSlabPfmemalloc(virt_to_head_page(page->s_mem));
+			ClearPageSlabPfmemalloc(page);
 			clear_obj_pfmemalloc(&objp);
 			recheck_pfmemalloc_active(cachep, ac);
 			return objp;
@@ -850,8 +848,7 @@ static void *__ac_put_obj(struct kmem_cache *cachep, struct array_cache *ac,
 	if (unlikely(pfmemalloc_active)) {
 		/* Some pfmemalloc slabs exist, check if this is one */
 		struct page *page = virt_to_head_page(objp);
-		struct page *mem_page = virt_to_head_page(page->s_mem);
-		if (PageSlabPfmemalloc(mem_page))
+		if (PageSlabPfmemalloc(page))
 			set_obj_pfmemalloc(&objp);
 	}
 
-- 
cgit 


From e7444d9b7d49898a667074122bed2dcedf349305 Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Thu, 24 Oct 2013 10:07:51 +0900
Subject: slab: rename slab_bufctl to slab_freelist

Now, bufctl is not proper name to this array.
So change it.

Acked-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
---
 mm/slab.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index fbb594f2259a..af2db76e1f5a 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2550,7 +2550,7 @@ static struct freelist *alloc_slabmgmt(struct kmem_cache *cachep,
 	return freelist;
 }
 
-static inline unsigned int *slab_bufctl(struct page *page)
+static inline unsigned int *slab_freelist(struct page *page)
 {
 	return (unsigned int *)(page->freelist);
 }
@@ -2597,7 +2597,7 @@ static void cache_init_objs(struct kmem_cache *cachep,
 		if (cachep->ctor)
 			cachep->ctor(objp);
 #endif
-		slab_bufctl(page)[i] = i;
+		slab_freelist(page)[i] = i;
 	}
 }
 
@@ -2616,7 +2616,7 @@ static void *slab_get_obj(struct kmem_cache *cachep, struct page *page,
 {
 	void *objp;
 
-	objp = index_to_obj(cachep, page, slab_bufctl(page)[page->active]);
+	objp = index_to_obj(cachep, page, slab_freelist(page)[page->active]);
 	page->active++;
 #if DEBUG
 	WARN_ON(page_to_nid(virt_to_page(objp)) != nodeid);
@@ -2637,7 +2637,7 @@ static void slab_put_obj(struct kmem_cache *cachep, struct page *page,
 
 	/* Verify double free bug */
 	for (i = page->active; i < cachep->num; i++) {
-		if (slab_bufctl(page)[i] == objnr) {
+		if (slab_freelist(page)[i] == objnr) {
 			printk(KERN_ERR "slab: double free detected in cache "
 					"'%s', objp %p\n", cachep->name, objp);
 			BUG();
@@ -2645,7 +2645,7 @@ static void slab_put_obj(struct kmem_cache *cachep, struct page *page,
 	}
 #endif
 	page->active--;
-	slab_bufctl(page)[page->active] = objnr;
+	slab_freelist(page)[page->active] = objnr;
 }
 
 /*
@@ -4218,7 +4218,7 @@ static void handle_slab(unsigned long *n, struct kmem_cache *c,
 
 		for (j = page->active; j < c->num; j++) {
 			/* Skip freed item */
-			if (slab_bufctl(page)[j] == i) {
+			if (slab_freelist(page)[j] == i) {
 				active = false;
 				break;
 			}
-- 
cgit 


From d56791b38e34e480d869d1b88735df16c81aa684 Mon Sep 17 00:00:00 2001
From: Roman Bobniev <Roman.Bobniev@sonymobile.com>
Date: Tue, 8 Oct 2013 15:58:57 -0700
Subject: slub: proper kmemleak tracking if CONFIG_SLUB_DEBUG disabled

Move all kmemleak calls into hook functions, and make it so
that all hooks (both inside and outside of #ifdef CONFIG_SLUB_DEBUG)
call the appropriate kmemleak routines.  This allows for kmemleak
to be configured independently of slub debug features.

It also fixes a bug where kmemleak was only partially enabled in some
configurations.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Roman Bobniev <Roman.Bobniev@sonymobile.com>
Signed-off-by: Tim Bird <tim.bird@sonymobile.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
---
 mm/slub.c | 35 +++++++++++++++++++++++++++++++----
 1 file changed, 31 insertions(+), 4 deletions(-)

diff --git a/mm/slub.c b/mm/slub.c
index e3ba1f2cf60c..250062c66ec5 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -928,6 +928,16 @@ static void trace(struct kmem_cache *s, struct page *page, void *object,
  * Hooks for other subsystems that check memory allocations. In a typical
  * production configuration these hooks all should produce no code at all.
  */
+static inline void kmalloc_large_node_hook(void *ptr, size_t size, gfp_t flags)
+{
+	kmemleak_alloc(ptr, size, 1, flags);
+}
+
+static inline void kfree_hook(const void *x)
+{
+	kmemleak_free(x);
+}
+
 static inline int slab_pre_alloc_hook(struct kmem_cache *s, gfp_t flags)
 {
 	flags &= gfp_allowed_mask;
@@ -1253,13 +1263,30 @@ static inline void inc_slabs_node(struct kmem_cache *s, int node,
 static inline void dec_slabs_node(struct kmem_cache *s, int node,
 							int objects) {}
 
+static inline void kmalloc_large_node_hook(void *ptr, size_t size, gfp_t flags)
+{
+	kmemleak_alloc(ptr, size, 1, flags);
+}
+
+static inline void kfree_hook(const void *x)
+{
+	kmemleak_free(x);
+}
+
 static inline int slab_pre_alloc_hook(struct kmem_cache *s, gfp_t flags)
 							{ return 0; }
 
 static inline void slab_post_alloc_hook(struct kmem_cache *s, gfp_t flags,
-		void *object) {}
+		void *object)
+{
+	kmemleak_alloc_recursive(object, s->object_size, 1, s->flags,
+		flags & gfp_allowed_mask);
+}
 
-static inline void slab_free_hook(struct kmem_cache *s, void *x) {}
+static inline void slab_free_hook(struct kmem_cache *s, void *x)
+{
+	kmemleak_free_recursive(x, s->flags);
+}
 
 #endif /* CONFIG_SLUB_DEBUG */
 
@@ -3265,7 +3292,7 @@ static void *kmalloc_large_node(size_t size, gfp_t flags, int node)
 	if (page)
 		ptr = page_address(page);
 
-	kmemleak_alloc(ptr, size, 1, flags);
+	kmalloc_large_node_hook(ptr, size, flags);
 	return ptr;
 }
 
@@ -3365,7 +3392,7 @@ void kfree(const void *x)
 	page = virt_to_head_page(x);
 	if (unlikely(!PageSlab(page))) {
 		BUG_ON(!PageCompound(page));
-		kmemleak_free(x);
+		kfree_hook(x);
 		__free_memcg_kmem_pages(page, compound_order(page));
 		return;
 	}
-- 
cgit 


From 307229d2ac5f60447cc655ebbce5d9c0baa18bbc Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@iki.fi>
Date: Thu, 24 Oct 2013 21:10:34 +0300
Subject: ALSA: hda - hdmi: Allow HDA patches to customize more operations

Upcoming AMD multichannel support requires many customized operations
(channel mapping, ELD, HBR) but can otherwise share most of its code
with the generic patch.

Add a local struct hdmi_ops containing customizable HDMI-specific
callbacks and move the current code to those callbacks. Functionality is
unaltered.

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 275 ++++++++++++++++++++++++++++++++-------------
 1 file changed, 195 insertions(+), 80 deletions(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 0f9b10322b2a..acc00fe01b71 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -82,6 +82,39 @@ struct hdmi_spec_per_pin {
 #endif
 };
 
+struct cea_channel_speaker_allocation;
+
+/* operations used by generic code that can be overridden by patches */
+struct hdmi_ops {
+	int (*pin_get_eld)(struct hda_codec *codec, hda_nid_t pin_nid,
+			   unsigned char *buf, int *eld_size);
+
+	/* get and set channel assigned to each HDMI ASP (audio sample packet) slot */
+	int (*pin_get_slot_channel)(struct hda_codec *codec, hda_nid_t pin_nid,
+				    int asp_slot);
+	int (*pin_set_slot_channel)(struct hda_codec *codec, hda_nid_t pin_nid,
+				    int asp_slot, int channel);
+
+	void (*pin_setup_infoframe)(struct hda_codec *codec, hda_nid_t pin_nid,
+				    int ca, int active_channels, int conn_type);
+
+	/* enable/disable HBR (HD passthrough) */
+	int (*pin_hbr_setup)(struct hda_codec *codec, hda_nid_t pin_nid, bool hbr);
+
+	int (*setup_stream)(struct hda_codec *codec, hda_nid_t cvt_nid,
+			    hda_nid_t pin_nid, u32 stream_tag, int format);
+
+	/* Helpers for producing the channel map TLVs. These can be overridden
+	 * for devices that have non-standard mapping requirements. */
+	int (*chmap_cea_alloc_validate_get_type)(struct cea_channel_speaker_allocation *cap,
+						 int channels);
+	void (*cea_alloc_to_tlv_chmap)(struct cea_channel_speaker_allocation *cap,
+				       unsigned int *chmap, int channels);
+
+	/* check that the user-given chmap is supported */
+	int (*chmap_validate)(int ca, int channels, unsigned char *chmap);
+};
+
 struct hdmi_spec {
 	int num_cvts;
 	struct snd_array cvts; /* struct hdmi_spec_per_cvt */
@@ -93,6 +126,7 @@ struct hdmi_spec {
 	unsigned int channels_max; /* max over all cvts */
 
 	struct hdmi_eld temp_eld;
+	struct hdmi_ops ops;
 	/*
 	 * Non-generic ATI/NVIDIA specific
 	 */
@@ -648,24 +682,24 @@ static void hdmi_debug_channel_mapping(struct hda_codec *codec,
 				       hda_nid_t pin_nid)
 {
 #ifdef CONFIG_SND_DEBUG_VERBOSE
+	struct hdmi_spec *spec = codec->spec;
 	int i;
-	int slot;
+	int channel;
 
 	for (i = 0; i < 8; i++) {
-		slot = snd_hda_codec_read(codec, pin_nid, 0,
-						AC_VERB_GET_HDMI_CHAN_SLOT, i);
+		channel = spec->ops.pin_get_slot_channel(codec, pin_nid, i);
 		printk(KERN_DEBUG "HDMI: ASP channel %d => slot %d\n",
-						slot >> 4, slot & 0xf);
+						channel, i);
 	}
 #endif
 }
 
-
 static void hdmi_std_setup_channel_mapping(struct hda_codec *codec,
 				       hda_nid_t pin_nid,
 				       bool non_pcm,
 				       int ca)
 {
+	struct hdmi_spec *spec = codec->spec;
 	struct cea_channel_speaker_allocation *ch_alloc;
 	int i;
 	int err;
@@ -698,9 +732,10 @@ static void hdmi_std_setup_channel_mapping(struct hda_codec *codec,
 	}
 
 	for (i = 0; i < 8; i++) {
-		err = snd_hda_codec_write(codec, pin_nid, 0,
-					  AC_VERB_SET_HDMI_CHAN_SLOT,
-					  non_pcm ? non_pcm_mapping[i] : hdmi_channel_mapping[ca][i]);
+		int slotsetup = non_pcm ? non_pcm_mapping[i] : hdmi_channel_mapping[ca][i];
+		int hdmi_slot = slotsetup & 0x0f;
+		int channel = (slotsetup & 0xf0) >> 4;
+		err = spec->ops.pin_set_slot_channel(codec, pin_nid, hdmi_slot, channel);
 		if (err) {
 			snd_printdd(KERN_NOTICE
 				    "HDMI: channel mapping failed\n");
@@ -810,6 +845,7 @@ static int hdmi_manual_setup_channel_mapping(struct hda_codec *codec,
 					     int chs, unsigned char *map,
 					     int ca)
 {
+	struct hdmi_spec *spec = codec->spec;
 	int ordered_ca = get_channel_allocation_order(ca);
 	int alsa_pos, hdmi_slot;
 	int assignments[8] = {[0 ... 7] = 0xf};
@@ -825,11 +861,10 @@ static int hdmi_manual_setup_channel_mapping(struct hda_codec *codec,
 	}
 
 	for (hdmi_slot = 0; hdmi_slot < 8; hdmi_slot++) {
-		int val, err;
+		int err;
 
-		val = (assignments[hdmi_slot] << 4) | hdmi_slot;
-		err = snd_hda_codec_write(codec, pin_nid, 0,
-					  AC_VERB_SET_HDMI_CHAN_SLOT, val);
+		err = spec->ops.pin_set_slot_channel(codec, pin_nid, hdmi_slot,
+						     assignments[hdmi_slot]);
 		if (err)
 			return -EINVAL;
 	}
@@ -865,6 +900,22 @@ static void hdmi_setup_channel_mapping(struct hda_codec *codec,
 	hdmi_debug_channel_mapping(codec, pin_nid);
 }
 
+static int hdmi_pin_set_slot_channel(struct hda_codec *codec, hda_nid_t pin_nid,
+				     int asp_slot, int channel)
+{
+	return snd_hda_codec_write(codec, pin_nid, 0,
+				   AC_VERB_SET_HDMI_CHAN_SLOT,
+				   (channel << 4) | asp_slot);
+}
+
+static int hdmi_pin_get_slot_channel(struct hda_codec *codec, hda_nid_t pin_nid,
+				     int asp_slot)
+{
+	return (snd_hda_codec_read(codec, pin_nid, 0,
+				   AC_VERB_GET_HDMI_CHAN_SLOT,
+				   asp_slot) & 0xf0) >> 4;
+}
+
 /*
  * Audio InfoFrame routines
  */
@@ -986,16 +1037,64 @@ static bool hdmi_infoframe_uptodate(struct hda_codec *codec, hda_nid_t pin_nid,
 	return true;
 }
 
+static void hdmi_pin_setup_infoframe(struct hda_codec *codec,
+				     hda_nid_t pin_nid,
+				     int ca, int active_channels,
+				     int conn_type)
+{
+	union audio_infoframe ai;
+
+	if (conn_type == 0) { /* HDMI */
+		struct hdmi_audio_infoframe *hdmi_ai = &ai.hdmi;
+
+		hdmi_ai->type		= 0x84;
+		hdmi_ai->ver		= 0x01;
+		hdmi_ai->len		= 0x0a;
+		hdmi_ai->CC02_CT47	= active_channels - 1;
+		hdmi_ai->CA		= ca;
+		hdmi_checksum_audio_infoframe(hdmi_ai);
+	} else if (conn_type == 1) { /* DisplayPort */
+		struct dp_audio_infoframe *dp_ai = &ai.dp;
+
+		dp_ai->type		= 0x84;
+		dp_ai->len		= 0x1b;
+		dp_ai->ver		= 0x11 << 2;
+		dp_ai->CC02_CT47	= active_channels - 1;
+		dp_ai->CA		= ca;
+	} else {
+		snd_printd("HDMI: unknown connection type at pin %d\n",
+			    pin_nid);
+		return;
+	}
+
+	/*
+	 * sizeof(ai) is used instead of sizeof(*hdmi_ai) or
+	 * sizeof(*dp_ai) to avoid partial match/update problems when
+	 * the user switches between HDMI/DP monitors.
+	 */
+	if (!hdmi_infoframe_uptodate(codec, pin_nid, ai.bytes,
+					sizeof(ai))) {
+		snd_printdd("hdmi_pin_setup_infoframe: "
+			    "pin=%d channels=%d ca=0x%02x\n",
+			    pin_nid,
+			    active_channels, ca);
+		hdmi_stop_infoframe_trans(codec, pin_nid);
+		hdmi_fill_audio_infoframe(codec, pin_nid,
+					    ai.bytes, sizeof(ai));
+		hdmi_start_infoframe_trans(codec, pin_nid);
+	}
+}
+
 static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
 				       struct hdmi_spec_per_pin *per_pin,
 				       bool non_pcm)
 {
+	struct hdmi_spec *spec = codec->spec;
 	hda_nid_t pin_nid = per_pin->pin_nid;
 	int channels = per_pin->channels;
 	int active_channels;
 	struct hdmi_eld *eld;
 	int ca, ordered_ca;
-	union audio_infoframe ai;
 
 	if (!channels)
 		return;
@@ -1021,30 +1120,6 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
 
 	hdmi_set_channel_count(codec, per_pin->cvt_nid, active_channels);
 
-	memset(&ai, 0, sizeof(ai));
-	if (eld->info.conn_type == 0) { /* HDMI */
-		struct hdmi_audio_infoframe *hdmi_ai = &ai.hdmi;
-
-		hdmi_ai->type		= 0x84;
-		hdmi_ai->ver		= 0x01;
-		hdmi_ai->len		= 0x0a;
-		hdmi_ai->CC02_CT47	= active_channels - 1;
-		hdmi_ai->CA		= ca;
-		hdmi_checksum_audio_infoframe(hdmi_ai);
-	} else if (eld->info.conn_type == 1) { /* DisplayPort */
-		struct dp_audio_infoframe *dp_ai = &ai.dp;
-
-		dp_ai->type		= 0x84;
-		dp_ai->len		= 0x1b;
-		dp_ai->ver		= 0x11 << 2;
-		dp_ai->CC02_CT47	= active_channels - 1;
-		dp_ai->CA		= ca;
-	} else {
-		snd_printd("HDMI: unknown connection type at pin %d\n",
-			    pin_nid);
-		return;
-	}
-
 	/*
 	 * always configure channel mapping, it may have been changed by the
 	 * user in the meantime
@@ -1053,27 +1128,12 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
 				   channels, per_pin->chmap,
 				   per_pin->chmap_set);
 
-	/*
-	 * sizeof(ai) is used instead of sizeof(*hdmi_ai) or
-	 * sizeof(*dp_ai) to avoid partial match/update problems when
-	 * the user switches between HDMI/DP monitors.
-	 */
-	if (!hdmi_infoframe_uptodate(codec, pin_nid, ai.bytes,
-					sizeof(ai))) {
-		snd_printdd("hdmi_setup_audio_infoframe: "
-			    "pin=%d channels=%d ca=0x%02x\n",
-			    pin_nid,
-			    active_channels, ca);
-		hdmi_stop_infoframe_trans(codec, pin_nid);
-		hdmi_fill_audio_infoframe(codec, pin_nid,
-					    ai.bytes, sizeof(ai));
-		hdmi_start_infoframe_trans(codec, pin_nid);
-	}
+	spec->ops.pin_setup_infoframe(codec, pin_nid, ca, active_channels,
+				      eld->info.conn_type);
 
 	per_pin->non_pcm = non_pcm;
 }
 
-
 /*
  * Unsolicited events
  */
@@ -1176,26 +1236,22 @@ static void haswell_verify_D0(struct hda_codec *codec,
 #define is_hbr_format(format) \
 	((format & AC_FMT_TYPE_NON_PCM) && (format & AC_FMT_CHAN_MASK) == 7)
 
-static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
-			      hda_nid_t pin_nid, u32 stream_tag, int format)
+static int hdmi_pin_hbr_setup(struct hda_codec *codec, hda_nid_t pin_nid,
+			      bool hbr)
 {
-	int pinctl;
-	int new_pinctl = 0;
-
-	if (is_haswell(codec))
-		haswell_verify_D0(codec, cvt_nid, pin_nid);
+	int pinctl, new_pinctl;
 
 	if (snd_hda_query_pin_caps(codec, pin_nid) & AC_PINCAP_HBR) {
 		pinctl = snd_hda_codec_read(codec, pin_nid, 0,
 					    AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
 
 		new_pinctl = pinctl & ~AC_PINCTL_EPT;
-		if (is_hbr_format(format))
+		if (hbr)
 			new_pinctl |= AC_PINCTL_EPT_HBR;
 		else
 			new_pinctl |= AC_PINCTL_EPT_NATIVE;
 
-		snd_printdd("hdmi_setup_stream: "
+		snd_printdd("hdmi_pin_hbr_setup: "
 			    "NID=0x%x, %spinctl=0x%x\n",
 			    pin_nid,
 			    pinctl == new_pinctl ? "" : "new-",
@@ -1205,11 +1261,26 @@ static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
 			snd_hda_codec_write(codec, pin_nid, 0,
 					    AC_VERB_SET_PIN_WIDGET_CONTROL,
 					    new_pinctl);
+	} else if (hbr)
+		return -EINVAL;
 
-	}
-	if (is_hbr_format(format) && !new_pinctl) {
+	return 0;
+}
+
+static int hdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
+			      hda_nid_t pin_nid, u32 stream_tag, int format)
+{
+	struct hdmi_spec *spec = codec->spec;
+	int err;
+
+	if (is_haswell(codec))
+		haswell_verify_D0(codec, cvt_nid, pin_nid);
+
+	err = spec->ops.pin_hbr_setup(codec, pin_nid, is_hbr_format(format));
+
+	if (err) {
 		snd_printdd("hdmi_setup_stream: HBR is not supported\n");
-		return -EINVAL;
+		return err;
 	}
 
 	snd_hda_codec_setup_stream(codec, cvt_nid, stream_tag, 0, format);
@@ -1424,7 +1495,7 @@ static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
 		codec->addr, pin_nid, pin_eld->monitor_present, eld->eld_valid);
 
 	if (eld->eld_valid) {
-		if (snd_hdmi_get_eld(codec, pin_nid, eld->eld_buffer,
+		if (spec->ops.pin_get_eld(codec, pin_nid, eld->eld_buffer,
 						     &eld->eld_size) < 0)
 			eld->eld_valid = false;
 		else {
@@ -1654,7 +1725,7 @@ static int generic_hdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
 	hdmi_setup_audio_infoframe(codec, per_pin, non_pcm);
 	mutex_unlock(&per_pin->lock);
 
-	return hdmi_setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
+	return spec->ops.setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
 }
 
 static int generic_hdmi_playback_pcm_cleanup(struct hda_pcm_stream *hinfo,
@@ -1726,6 +1797,34 @@ static int hdmi_chmap_ctl_info(struct snd_kcontrol *kcontrol,
 	return 0;
 }
 
+static int hdmi_chmap_cea_alloc_validate_get_type(struct cea_channel_speaker_allocation *cap,
+						  int channels)
+{
+	/* If the speaker allocation matches the channel count, it is OK.*/
+	if (cap->channels != channels)
+		return -1;
+
+	/* all channels are remappable freely */
+	return SNDRV_CTL_TLVT_CHMAP_VAR;
+}
+
+static void hdmi_cea_alloc_to_tlv_chmap(struct cea_channel_speaker_allocation *cap,
+					unsigned int *chmap, int channels)
+{
+	int count = 0;
+	int c;
+
+	for (c = 7; c >= 0; c--) {
+		int spk = cap->speakers[c];
+		if (!spk)
+			continue;
+
+		chmap[count++] = spk_to_chmap(spk);
+	}
+
+	WARN_ON(count != channels);
+}
+
 static int hdmi_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag,
 			      unsigned int size, unsigned int __user *tlv)
 {
@@ -1742,16 +1841,19 @@ static int hdmi_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag,
 	size -= 8;
 	dst = tlv + 2;
 	for (chs = 2; chs <= spec->channels_max; chs++) {
-		int i, c;
+		int i;
 		struct cea_channel_speaker_allocation *cap;
 		cap = channel_allocations;
 		for (i = 0; i < ARRAY_SIZE(channel_allocations); i++, cap++) {
 			int chs_bytes = chs * 4;
-			if (cap->channels != chs)
+			int type = spec->ops.chmap_cea_alloc_validate_get_type(cap, chs);
+			unsigned int tlv_chmap[8];
+
+			if (type < 0)
 				continue;
 			if (size < 8)
 				return -ENOMEM;
-			if (put_user(SNDRV_CTL_TLVT_CHMAP_VAR, dst) ||
+			if (put_user(type, dst) ||
 			    put_user(chs_bytes, dst + 1))
 				return -EFAULT;
 			dst += 2;
@@ -1761,14 +1863,10 @@ static int hdmi_chmap_ctl_tlv(struct snd_kcontrol *kcontrol, int op_flag,
 				return -ENOMEM;
 			size -= chs_bytes;
 			count += chs_bytes;
-			for (c = 7; c >= 0; c--) {
-				int spk = cap->speakers[c];
-				if (!spk)
-					continue;
-				if (put_user(spk_to_chmap(spk), dst))
-					return -EFAULT;
-				dst++;
-			}
+			spec->ops.cea_alloc_to_tlv_chmap(cap, tlv_chmap, chs);
+			if (copy_to_user(dst, tlv_chmap, chs_bytes))
+				return -EFAULT;
+			dst += chs;
 		}
 	}
 	if (put_user(count, tlv + 1))
@@ -1802,7 +1900,7 @@ static int hdmi_chmap_ctl_put(struct snd_kcontrol *kcontrol,
 	unsigned int ctl_idx;
 	struct snd_pcm_substream *substream;
 	unsigned char chmap[8];
-	int i, ca, prepared = 0;
+	int i, err, ca, prepared = 0;
 
 	ctl_idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id);
 	substream = snd_pcm_chmap_substream(info, ctl_idx);
@@ -1826,6 +1924,11 @@ static int hdmi_chmap_ctl_put(struct snd_kcontrol *kcontrol,
 	ca = hdmi_manual_channel_allocation(ARRAY_SIZE(chmap), chmap);
 	if (ca < 0)
 		return -EINVAL;
+	if (spec->ops.chmap_validate) {
+		err = spec->ops.chmap_validate(ca, ARRAY_SIZE(chmap), chmap);
+		if (err)
+			return err;
+	}
 	mutex_lock(&per_pin->lock);
 	per_pin->chmap_set = true;
 	memcpy(per_pin->chmap, chmap, sizeof(chmap));
@@ -2032,6 +2135,17 @@ static const struct hda_codec_ops generic_hdmi_patch_ops = {
 #endif
 };
 
+static const struct hdmi_ops generic_standard_hdmi_ops = {
+	.pin_get_eld				= snd_hdmi_get_eld,
+	.pin_get_slot_channel			= hdmi_pin_get_slot_channel,
+	.pin_set_slot_channel			= hdmi_pin_set_slot_channel,
+	.pin_setup_infoframe			= hdmi_pin_setup_infoframe,
+	.pin_hbr_setup				= hdmi_pin_hbr_setup,
+	.setup_stream				= hdmi_setup_stream,
+	.chmap_cea_alloc_validate_get_type	= hdmi_chmap_cea_alloc_validate_get_type,
+	.cea_alloc_to_tlv_chmap			= hdmi_cea_alloc_to_tlv_chmap,
+};
+
 
 static void intel_haswell_fixup_connect_list(struct hda_codec *codec,
 					     hda_nid_t nid)
@@ -2114,6 +2228,7 @@ static int patch_generic_hdmi(struct hda_codec *codec)
 	if (spec == NULL)
 		return -ENOMEM;
 
+	spec->ops = generic_standard_hdmi_ops;
 	codec->spec = spec;
 	hdmi_array_init(spec, 4);
 
-- 
cgit 


From 5a61358433b1f89b500f2c365746c73cb7a27e2f Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@iki.fi>
Date: Thu, 24 Oct 2013 21:10:35 +0300
Subject: ALSA: hda - hdmi: Add ATI/AMD multi-channel audio support
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

ATI/AMD codecs do not support all the standard HDA HDMI/DP functions,
instead various vendor-specific verbs are provided.

This commit addresses these missing functions:
- standard channel mapping support
- standard infoframe configuration support

ATI/AMD provides their own verbs that allow the following:
- setting CA for infoframe
- setting down-mix information for infoframe
- channel pair remapping
- individual channel remapping (revision ID 3+, 0x100300+)

The documentation for the verbs has now been released by AMD:
http://www.x.org/docs/AMD/AMD_HDA_verbs_v2.pdf

Add support for the ATI/AMD specific verbs and use them instead of the
generic methods on ATI/AMD codecs. This allows multi-channel PCM audio
to work.

Channel remapping is restricted to pairwise mapping on codecs with
revision ID 2 (0x100200 as reported by procfs codec#X) or lower. This
means cards up to Radeon HD7670 as far as I know. This will not affect
standard multi-channel modes since these codecs support automatic
FC-LFE swapping for HDMI.

ATI/AMD codecs do not advertise all of their supported rates, formats
and channel counts, therefore that information is forced accordingly so
that all HDMI 1.x PCM parameters are marked as supported.

Support for multiple ports is also added to patch_atihdmi so that
0x1002aa01 codecs with multiple ports will work properly when switched
back to that patch.

v2: splitted ELD emulation to a separate patch, tlv fixes
v3: adapted to the new hdmi_ops infrastructure, fixed rev3+ vendor id

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Tested-by: Peter Frühberger <fritsch@xbmc.org> # v2
Tested-by: Olivier Langlois <olivier@trillion01.com> # v2+rev3fix
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 302 ++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 273 insertions(+), 29 deletions(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index acc00fe01b71..1114be018e5a 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -6,6 +6,7 @@
  *  Copyright (c) 2006 ATI Technologies Inc.
  *  Copyright (c) 2008 NVIDIA Corp.  All rights reserved.
  *  Copyright (c) 2008 Wei Ni <wni@nvidia.com>
+ *  Copyright (c) 2013 Anssi Hannula <anssi.hannula@iki.fi>
  *
  *  Authors:
  *			Wu Fengguang <wfg@linux.intel.com>
@@ -128,7 +129,7 @@ struct hdmi_spec {
 	struct hdmi_eld temp_eld;
 	struct hdmi_ops ops;
 	/*
-	 * Non-generic ATI/NVIDIA specific
+	 * Non-generic VIA/NVIDIA specific
 	 */
 	struct hda_multi_out multiout;
 	struct hda_pcm_stream pcm_playback;
@@ -2784,49 +2785,292 @@ static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
 }
 
 /*
- * ATI-specific implementations
- *
- * FIXME: we may omit the whole this and use the generic code once after
- * it's confirmed to work.
+ * ATI/AMD-specific implementations
  */
 
-#define ATIHDMI_CVT_NID		0x02	/* audio converter */
-#define ATIHDMI_PIN_NID		0x03	/* HDMI output pin */
+#define is_amdhdmi_rev3_or_later(codec) \
+	((codec)->vendor_id == 0x1002aa01 && ((codec)->revision_id & 0xff00) >= 0x0300)
+#define has_amd_full_remap_support(codec) is_amdhdmi_rev3_or_later(codec)
+
+/* ATI/AMD specific HDA pin verbs, see the AMD HDA Verbs specification */
+#define ATI_VERB_SET_CHANNEL_ALLOCATION	0x771
+#define ATI_VERB_SET_DOWNMIX_INFO	0x772
+#define ATI_VERB_SET_MULTICHANNEL_01	0x777
+#define ATI_VERB_SET_MULTICHANNEL_23	0x778
+#define ATI_VERB_SET_MULTICHANNEL_45	0x779
+#define ATI_VERB_SET_MULTICHANNEL_67	0x77a
+#define ATI_VERB_SET_MULTICHANNEL_1	0x785
+#define ATI_VERB_SET_MULTICHANNEL_3	0x786
+#define ATI_VERB_SET_MULTICHANNEL_5	0x787
+#define ATI_VERB_SET_MULTICHANNEL_7	0x788
+#define ATI_VERB_SET_MULTICHANNEL_MODE	0x789
+#define ATI_VERB_GET_CHANNEL_ALLOCATION	0xf71
+#define ATI_VERB_GET_DOWNMIX_INFO	0xf72
+#define ATI_VERB_GET_MULTICHANNEL_01	0xf77
+#define ATI_VERB_GET_MULTICHANNEL_23	0xf78
+#define ATI_VERB_GET_MULTICHANNEL_45	0xf79
+#define ATI_VERB_GET_MULTICHANNEL_67	0xf7a
+#define ATI_VERB_GET_MULTICHANNEL_1	0xf85
+#define ATI_VERB_GET_MULTICHANNEL_3	0xf86
+#define ATI_VERB_GET_MULTICHANNEL_5	0xf87
+#define ATI_VERB_GET_MULTICHANNEL_7	0xf88
+#define ATI_VERB_GET_MULTICHANNEL_MODE	0xf89
+
+#define ATI_OUT_ENABLE 0x1
+
+#define ATI_MULTICHANNEL_MODE_PAIRED	0
+#define ATI_MULTICHANNEL_MODE_SINGLE	1
+
+static void atihdmi_pin_setup_infoframe(struct hda_codec *codec, hda_nid_t pin_nid, int ca,
+					int active_channels, int conn_type)
+{
+	snd_hda_codec_write(codec, pin_nid, 0, ATI_VERB_SET_CHANNEL_ALLOCATION, ca);
+}
+
+static int atihdmi_paired_swap_fc_lfe(int pos)
+{
+	/*
+	 * ATI/AMD have automatic FC/LFE swap built-in
+	 * when in pairwise mapping mode.
+	 */
+
+	switch (pos) {
+		/* see channel_allocations[].speakers[] */
+		case 2: return 3;
+		case 3: return 2;
+		default: break;
+	}
+
+	return pos;
+}
+
+static int atihdmi_paired_chmap_validate(int ca, int chs, unsigned char *map)
+{
+	struct cea_channel_speaker_allocation *cap;
+	int i, j;
+
+	/* check that only channel pairs need to be remapped on old pre-rev3 ATI/AMD */
+
+	cap = &channel_allocations[get_channel_allocation_order(ca)];
+	for (i = 0; i < chs; ++i) {
+		int mask = to_spk_mask(map[i]);
+		bool ok = false;
+		bool companion_ok = false;
+
+		if (!mask)
+			continue;
+
+		for (j = 0 + i % 2; j < 8; j += 2) {
+			int chan_idx = 7 - atihdmi_paired_swap_fc_lfe(j);
+			if (cap->speakers[chan_idx] == mask) {
+				/* channel is in a supported position */
+				ok = true;
+
+				if (i % 2 == 0 && i + 1 < chs) {
+					/* even channel, check the odd companion */
+					int comp_chan_idx = 7 - atihdmi_paired_swap_fc_lfe(j + 1);
+					int comp_mask_req = to_spk_mask(map[i+1]);
+					int comp_mask_act = cap->speakers[comp_chan_idx];
+
+					if (comp_mask_req == comp_mask_act)
+						companion_ok = true;
+					else
+						return -EINVAL;
+				}
+				break;
+			}
+		}
+
+		if (!ok)
+			return -EINVAL;
+
+		if (companion_ok)
+			i++; /* companion channel already checked */
+	}
+
+	return 0;
+}
+
+static int atihdmi_pin_set_slot_channel(struct hda_codec *codec, hda_nid_t pin_nid,
+					int hdmi_slot, int stream_channel)
+{
+	int verb;
+	int ati_channel_setup = 0;
+
+	if (hdmi_slot > 7)
+		return -EINVAL;
+
+	if (!has_amd_full_remap_support(codec)) {
+		hdmi_slot = atihdmi_paired_swap_fc_lfe(hdmi_slot);
+
+		/* In case this is an odd slot but without stream channel, do not
+		 * disable the slot since the corresponding even slot could have a
+		 * channel. In case neither have a channel, the slot pair will be
+		 * disabled when this function is called for the even slot. */
+		if (hdmi_slot % 2 != 0 && stream_channel == 0xf)
+			return 0;
+
+		hdmi_slot -= hdmi_slot % 2;
+
+		if (stream_channel != 0xf)
+			stream_channel -= stream_channel % 2;
+	}
+
+	verb = ATI_VERB_SET_MULTICHANNEL_01 + hdmi_slot/2 + (hdmi_slot % 2) * 0x00e;
+
+	/* ati_channel_setup format: [7..4] = stream_channel_id, [1] = mute, [0] = enable */
+
+	if (stream_channel != 0xf)
+		ati_channel_setup = (stream_channel << 4) | ATI_OUT_ENABLE;
+
+	return snd_hda_codec_write(codec, pin_nid, 0, verb, ati_channel_setup);
+}
+
+static int atihdmi_pin_get_slot_channel(struct hda_codec *codec, hda_nid_t pin_nid,
+					int asp_slot)
+{
+	bool was_odd = false;
+	int ati_asp_slot = asp_slot;
+	int verb;
+	int ati_channel_setup;
+
+	if (asp_slot > 7)
+		return -EINVAL;
+
+	if (!has_amd_full_remap_support(codec)) {
+		ati_asp_slot = atihdmi_paired_swap_fc_lfe(asp_slot);
+		if (ati_asp_slot % 2 != 0) {
+			ati_asp_slot -= 1;
+			was_odd = true;
+		}
+	}
+
+	verb = ATI_VERB_GET_MULTICHANNEL_01 + ati_asp_slot/2 + (ati_asp_slot % 2) * 0x00e;
+
+	ati_channel_setup = snd_hda_codec_read(codec, pin_nid, 0, verb, 0);
+
+	if (!(ati_channel_setup & ATI_OUT_ENABLE))
+		return 0xf;
+
+	return ((ati_channel_setup & 0xf0) >> 4) + !!was_odd;
+}
 
-static int atihdmi_playback_pcm_prepare(struct hda_pcm_stream *hinfo,
-					struct hda_codec *codec,
-					unsigned int stream_tag,
-					unsigned int format,
-					struct snd_pcm_substream *substream)
+static int atihdmi_paired_chmap_cea_alloc_validate_get_type(struct cea_channel_speaker_allocation *cap,
+							    int channels)
+{
+	int c;
+
+	/*
+	 * Pre-rev3 ATI/AMD codecs operate in a paired channel mode, so
+	 * we need to take that into account (a single channel may take 2
+	 * channel slots if we need to carry a silent channel next to it).
+	 * On Rev3+ AMD codecs this function is not used.
+	 */
+	int chanpairs = 0;
+
+	/* We only produce even-numbered channel count TLVs */
+	if ((channels % 2) != 0)
+		return -1;
+
+	for (c = 0; c < 7; c += 2) {
+		if (cap->speakers[c] || cap->speakers[c+1])
+			chanpairs++;
+	}
+
+	if (chanpairs * 2 != channels)
+		return -1;
+
+	return SNDRV_CTL_TLVT_CHMAP_PAIRED;
+}
+
+static void atihdmi_paired_cea_alloc_to_tlv_chmap(struct cea_channel_speaker_allocation *cap,
+						  unsigned int *chmap, int channels)
+{
+	/* produce paired maps for pre-rev3 ATI/AMD codecs */
+	int count = 0;
+	int c;
+
+	for (c = 7; c >= 0; c--) {
+		int chan = 7 - atihdmi_paired_swap_fc_lfe(7 - c);
+		int spk = cap->speakers[chan];
+		if (!spk) {
+			/* add N/A channel if the companion channel is occupied */
+			if (cap->speakers[chan + (chan % 2 ? -1 : 1)])
+				chmap[count++] = SNDRV_CHMAP_NA;
+
+			continue;
+		}
+
+		chmap[count++] = spk_to_chmap(spk);
+	}
+
+	WARN_ON(count != channels);
+}
+
+static int atihdmi_init(struct hda_codec *codec)
 {
 	struct hdmi_spec *spec = codec->spec;
-	struct hdmi_spec_per_cvt *per_cvt = get_cvt(spec, 0);
-	int chans = substream->runtime->channels;
-	int i, err;
+	int pin_idx, err;
 
-	err = simple_playback_pcm_prepare(hinfo, codec, stream_tag, format,
-					  substream);
-	if (err < 0)
+	err = generic_hdmi_init(codec);
+
+	if (err)
 		return err;
-	snd_hda_codec_write(codec, per_cvt->cvt_nid, 0,
-			    AC_VERB_SET_CVT_CHAN_COUNT, chans - 1);
-	/* FIXME: XXX */
-	for (i = 0; i < chans; i++) {
-		snd_hda_codec_write(codec, per_cvt->cvt_nid, 0,
-				    AC_VERB_SET_HDMI_CHAN_SLOT,
-				    (i << 4) | i);
+
+	for (pin_idx = 0; pin_idx < spec->num_pins; pin_idx++) {
+		struct hdmi_spec_per_pin *per_pin = get_pin(spec, pin_idx);
+
+		/* make sure downmix information in infoframe is zero */
+		snd_hda_codec_write(codec, per_pin->pin_nid, 0, ATI_VERB_SET_DOWNMIX_INFO, 0);
+
+		/* enable channel-wise remap mode if supported */
+		if (has_amd_full_remap_support(codec))
+			snd_hda_codec_write(codec, per_pin->pin_nid, 0,
+					    ATI_VERB_SET_MULTICHANNEL_MODE,
+					    ATI_MULTICHANNEL_MODE_SINGLE);
 	}
+
 	return 0;
 }
 
 static int patch_atihdmi(struct hda_codec *codec)
 {
 	struct hdmi_spec *spec;
-	int err = patch_simple_hdmi(codec, ATIHDMI_CVT_NID, ATIHDMI_PIN_NID);
-	if (err < 0)
+	struct hdmi_spec_per_cvt *per_cvt;
+	int err, cvt_idx;
+
+	err = patch_generic_hdmi(codec);
+
+	if (err)
 		return err;
+
+	codec->patch_ops.init = atihdmi_init;
+
 	spec = codec->spec;
-	spec->pcm_playback.ops.prepare = atihdmi_playback_pcm_prepare;
+
+	spec->ops.pin_get_slot_channel = atihdmi_pin_get_slot_channel;
+	spec->ops.pin_set_slot_channel = atihdmi_pin_set_slot_channel;
+	spec->ops.pin_setup_infoframe = atihdmi_pin_setup_infoframe;
+
+	if (!has_amd_full_remap_support(codec)) {
+		/* override to ATI/AMD-specific versions with pairwise mapping */
+		spec->ops.chmap_cea_alloc_validate_get_type =
+			atihdmi_paired_chmap_cea_alloc_validate_get_type;
+		spec->ops.cea_alloc_to_tlv_chmap = atihdmi_paired_cea_alloc_to_tlv_chmap;
+		spec->ops.chmap_validate = atihdmi_paired_chmap_validate;
+	}
+
+	/* ATI/AMD converters do not advertise all of their capabilities */
+	for (cvt_idx = 0; cvt_idx < spec->num_cvts; cvt_idx++) {
+		per_cvt = get_cvt(spec, cvt_idx);
+		per_cvt->channels_max = max(per_cvt->channels_max, 8u);
+		per_cvt->rates |= SUPPORTED_RATES;
+		per_cvt->formats |= SUPPORTED_FORMATS;
+		per_cvt->maxbps = max(per_cvt->maxbps, 24u);
+	}
+
+	spec->channels_max = max(spec->channels_max, 8u);
+
 	return 0;
 }
 
@@ -2846,7 +3090,7 @@ static const struct hda_codec_preset snd_hda_preset_hdmi[] = {
 { .id = 0x1002793c, .name = "RS600 HDMI",	.patch = patch_atihdmi },
 { .id = 0x10027919, .name = "RS600 HDMI",	.patch = patch_atihdmi },
 { .id = 0x1002791a, .name = "RS690/780 HDMI",	.patch = patch_atihdmi },
-{ .id = 0x1002aa01, .name = "R6xx HDMI",	.patch = patch_generic_hdmi },
+{ .id = 0x1002aa01, .name = "R6xx HDMI",	.patch = patch_atihdmi },
 { .id = 0x10951390, .name = "SiI1390 HDMI",	.patch = patch_generic_hdmi },
 { .id = 0x10951392, .name = "SiI1392 HDMI",	.patch = patch_generic_hdmi },
 { .id = 0x17e80047, .name = "Chrontel HDMI",	.patch = patch_generic_hdmi },
-- 
cgit 


From 89250f84644676c1ed6a09acef1033e14596a402 Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@iki.fi>
Date: Thu, 24 Oct 2013 21:10:36 +0300
Subject: ALSA: hda - hdmi: Add ELD emulation for ATI/AMD codecs
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

ATI/AMD HDMI/DP codecs do not include standard HDA ELD (EDID-like data)
support.

In place of providing access to an ELD buffer, various vendor-specific
verbs are provided to provide the relevant information. Revision ID 3
and later (0x100300 as reported by procfs codec#X) have support for
providing more information than the previous revisions (but only if
supported by the display driver).

Generate ELD from the information provided by the vendor-specific verbs
on ATI/AMD codecs.

The specification is available at:
http://www.x.org/docs/AMD/AMD_HDA_verbs_v2.pdf

v2: moved code to hda_eld.c and cleaned it up
v3: adapted to hdmi_ops infrastructure

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Tested-by: Peter Frühberger <fritsch@xbmc.org> # v2
Tested-by: Olivier Langlois <olivier@trillion01.com> # v2
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_eld.c    | 151 +++++++++++++++++++++++++++++++++++++++++++++
 sound/pci/hda/hda_local.h  |   4 ++
 sound/pci/hda/patch_hdmi.c |   9 +++
 3 files changed, 164 insertions(+)

diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c
index f62356c2f54c..32d3e3855a6e 100644
--- a/sound/pci/hda/hda_eld.c
+++ b/sound/pci/hda/hda_eld.c
@@ -2,6 +2,7 @@
  * Generic routines and proc interface for ELD(EDID Like Data) information
  *
  * Copyright(c) 2008 Intel Corporation.
+ * Copyright (c) 2013 Anssi Hannula <anssi.hannula@iki.fi>
  *
  * Authors:
  * 		Wu Fengguang <wfg@linux.intel.com>
@@ -633,3 +634,153 @@ void snd_hdmi_eld_update_pcm_info(struct parsed_hdmi_eld *e,
 	hinfo->maxbps = min(hinfo->maxbps, maxbps);
 	hinfo->channels_max = min(hinfo->channels_max, channels_max);
 }
+
+
+/* ATI/AMD specific stuff (ELD emulation) */
+
+#define ATI_VERB_SET_AUDIO_DESCRIPTOR	0x776
+#define ATI_VERB_SET_SINK_INFO_INDEX	0x780
+#define ATI_VERB_GET_SPEAKER_ALLOCATION	0xf70
+#define ATI_VERB_GET_AUDIO_DESCRIPTOR	0xf76
+#define ATI_VERB_GET_AUDIO_VIDEO_DELAY	0xf7b
+#define ATI_VERB_GET_SINK_INFO_INDEX	0xf80
+#define ATI_VERB_GET_SINK_INFO_DATA	0xf81
+
+#define ATI_SPKALLOC_SPKALLOC		0x007f
+#define ATI_SPKALLOC_TYPE_HDMI		0x0100
+#define ATI_SPKALLOC_TYPE_DISPLAYPORT	0x0200
+
+/* first three bytes are just standard SAD */
+#define ATI_AUDIODESC_CHANNELS		0x00000007
+#define ATI_AUDIODESC_RATES		0x0000ff00
+#define ATI_AUDIODESC_LPCM_STEREO_RATES	0xff000000
+
+/* in standard HDMI VSDB format */
+#define ATI_DELAY_VIDEO_LATENCY		0x000000ff
+#define ATI_DELAY_AUDIO_LATENCY		0x0000ff00
+
+enum ati_sink_info_idx {
+	ATI_INFO_IDX_MANUFACTURER_ID	= 0,
+	ATI_INFO_IDX_PRODUCT_ID		= 1,
+	ATI_INFO_IDX_SINK_DESC_LEN	= 2,
+	ATI_INFO_IDX_PORT_ID_LOW	= 3,
+	ATI_INFO_IDX_PORT_ID_HIGH	= 4,
+	ATI_INFO_IDX_SINK_DESC_FIRST	= 5,
+	ATI_INFO_IDX_SINK_DESC_LAST	= 22, /* max len 18 bytes */
+};
+
+int snd_hdmi_get_eld_ati(struct hda_codec *codec, hda_nid_t nid,
+			 unsigned char *buf, int *eld_size, bool rev3_or_later)
+{
+	int spkalloc, ati_sad, aud_synch;
+	int sink_desc_len = 0;
+	int pos, i;
+
+	/* ATI/AMD does not have ELD, emulate it */
+
+	spkalloc = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SPEAKER_ALLOCATION, 0);
+
+	if (!spkalloc) {
+		snd_printd(KERN_INFO "HDMI ATI/AMD: no speaker allocation for ELD\n");
+		return -EINVAL;
+	}
+
+	memset(buf, 0, ELD_FIXED_BYTES + ELD_MAX_MNL + ELD_MAX_SAD * 3);
+
+	/* version */
+	buf[0] = ELD_VER_CEA_861D << 3;
+
+	/* speaker allocation from EDID */
+	buf[7] = spkalloc & ATI_SPKALLOC_SPKALLOC;
+
+	/* is DisplayPort? */
+	if (spkalloc & ATI_SPKALLOC_TYPE_DISPLAYPORT)
+		buf[5] |= 0x04;
+
+	pos = ELD_FIXED_BYTES;
+
+	if (rev3_or_later) {
+		int sink_info;
+
+		snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_SINK_INFO_INDEX, ATI_INFO_IDX_PORT_ID_LOW);
+		sink_info = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SINK_INFO_DATA, 0);
+		put_unaligned_le32(sink_info, buf + 8);
+
+		snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_SINK_INFO_INDEX, ATI_INFO_IDX_PORT_ID_HIGH);
+		sink_info = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SINK_INFO_DATA, 0);
+		put_unaligned_le32(sink_info, buf + 12);
+
+		snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_SINK_INFO_INDEX, ATI_INFO_IDX_MANUFACTURER_ID);
+		sink_info = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SINK_INFO_DATA, 0);
+		put_unaligned_le16(sink_info, buf + 16);
+
+		snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_SINK_INFO_INDEX, ATI_INFO_IDX_PRODUCT_ID);
+		sink_info = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SINK_INFO_DATA, 0);
+		put_unaligned_le16(sink_info, buf + 18);
+
+		snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_SINK_INFO_INDEX, ATI_INFO_IDX_SINK_DESC_LEN);
+		sink_desc_len = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SINK_INFO_DATA, 0);
+
+		if (sink_desc_len > ELD_MAX_MNL) {
+			snd_printd(KERN_INFO "HDMI ATI/AMD: Truncating HDMI sink description with length %d\n",
+				   sink_desc_len);
+			sink_desc_len = ELD_MAX_MNL;
+		}
+
+		buf[4] |= sink_desc_len;
+
+		for (i = 0; i < sink_desc_len; i++) {
+			snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_SINK_INFO_INDEX, ATI_INFO_IDX_SINK_DESC_FIRST + i);
+			buf[pos++] = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SINK_INFO_DATA, 0);
+		}
+	}
+
+	for (i = AUDIO_CODING_TYPE_LPCM; i <= AUDIO_CODING_TYPE_WMAPRO; i++) {
+		if (i == AUDIO_CODING_TYPE_SACD || i == AUDIO_CODING_TYPE_DST)
+			continue; /* not handled by ATI/AMD */
+
+		snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_AUDIO_DESCRIPTOR, i << 3);
+		ati_sad = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_AUDIO_DESCRIPTOR, 0);
+
+		if (ati_sad & ATI_AUDIODESC_RATES) {
+			/* format is supported, copy SAD as-is */
+			buf[pos++] = (ati_sad & 0x0000ff) >> 0;
+			buf[pos++] = (ati_sad & 0x00ff00) >> 8;
+			buf[pos++] = (ati_sad & 0xff0000) >> 16;
+		}
+
+		if (i == AUDIO_CODING_TYPE_LPCM
+		    && (ati_sad & ATI_AUDIODESC_LPCM_STEREO_RATES)
+		    && (ati_sad & ATI_AUDIODESC_LPCM_STEREO_RATES) >> 16 != (ati_sad & ATI_AUDIODESC_RATES)) {
+			/* for PCM there is a separate stereo rate mask */
+			buf[pos++] = ((ati_sad & 0x000000ff) & ~ATI_AUDIODESC_CHANNELS) | 0x1;
+			/* rates from the extra byte */
+			buf[pos++] = (ati_sad & 0xff000000) >> 24;
+			buf[pos++] = (ati_sad & 0x00ff0000) >> 16;
+		}
+	}
+
+	if (pos == ELD_FIXED_BYTES + sink_desc_len) {
+		snd_printd(KERN_INFO "HDMI ATI/AMD: no audio descriptors for ELD\n");
+		return -EINVAL;
+	}
+
+	aud_synch = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_AUDIO_VIDEO_DELAY, 0);
+	if ((aud_synch & ATI_DELAY_VIDEO_LATENCY) && (aud_synch & ATI_DELAY_AUDIO_LATENCY)) {
+		int video_latency = (aud_synch & ATI_DELAY_VIDEO_LATENCY) - 1;
+		int audio_latency = ((aud_synch & ATI_DELAY_AUDIO_LATENCY) >> 8) - 1;
+
+		if (video_latency > audio_latency)
+			buf[6] = min(video_latency - audio_latency, 0xfa);
+	}
+
+	/* Baseline length */
+	buf[2] = pos - 4;
+
+	/* SAD count */
+	buf[5] |= ((pos - ELD_FIXED_BYTES - sink_desc_len) / 3) << 4;
+
+	*eld_size = pos;
+
+	return 0;
+}
diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h
index 46cddd4c7b72..d398b648bb5d 100644
--- a/sound/pci/hda/hda_local.h
+++ b/sound/pci/hda/hda_local.h
@@ -763,6 +763,10 @@ void snd_hdmi_show_eld(struct parsed_hdmi_eld *e);
 void snd_hdmi_eld_update_pcm_info(struct parsed_hdmi_eld *e,
 			      struct hda_pcm_stream *hinfo);
 
+int snd_hdmi_get_eld_ati(struct hda_codec *codec, hda_nid_t nid,
+			 unsigned char *buf, int *eld_size,
+			 bool rev3_or_later);
+
 #ifdef CONFIG_PROC_FS
 void snd_hdmi_print_eld_info(struct hdmi_eld *eld,
 			     struct snd_info_buffer *buffer);
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 1114be018e5a..0307ae87bef3 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -2821,6 +2821,14 @@ static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
 #define ATI_MULTICHANNEL_MODE_PAIRED	0
 #define ATI_MULTICHANNEL_MODE_SINGLE	1
 
+static int atihdmi_pin_get_eld(struct hda_codec *codec, hda_nid_t nid,
+			   unsigned char *buf, int *eld_size)
+{
+	/* call hda_eld.c ATI/AMD-specific function */
+	return snd_hdmi_get_eld_ati(codec, nid, buf, eld_size,
+				    is_amdhdmi_rev3_or_later(codec));
+}
+
 static void atihdmi_pin_setup_infoframe(struct hda_codec *codec, hda_nid_t pin_nid, int ca,
 					int active_channels, int conn_type)
 {
@@ -3048,6 +3056,7 @@ static int patch_atihdmi(struct hda_codec *codec)
 
 	spec = codec->spec;
 
+	spec->ops.pin_get_eld = atihdmi_pin_get_eld;
 	spec->ops.pin_get_slot_channel = atihdmi_pin_get_slot_channel;
 	spec->ops.pin_set_slot_channel = atihdmi_pin_set_slot_channel;
 	spec->ops.pin_setup_infoframe = atihdmi_pin_setup_infoframe;
-- 
cgit 


From 461cf6b39dded3ddb15a2300a534aba039870e5f Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@iki.fi>
Date: Thu, 24 Oct 2013 21:10:37 +0300
Subject: ALSA: hda - hdmi: Add HBR bitstreaming support for ATI/AMD HDMI
 codecs
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

ATI/AMD HDMI codecs do not include standard HDA HDMI HBR support (which
is required for bitstreaming DTS-HD and Dolby TrueHD), instead they have
custom verbs for checking and enabling it.

Add support for the ATI/AMD HDMI HBR verbs.

The specification is available at:
http://www.x.org/docs/AMD/AMD_HDA_verbs_v2.pdf

v2: adapted to hdmi_ops infrastructure

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Tested-by: Peter Frühberger <fritsch@xbmc.org> # v1
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 0307ae87bef3..f6a97607e522 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -2799,6 +2799,7 @@ static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
 #define ATI_VERB_SET_MULTICHANNEL_23	0x778
 #define ATI_VERB_SET_MULTICHANNEL_45	0x779
 #define ATI_VERB_SET_MULTICHANNEL_67	0x77a
+#define ATI_VERB_SET_HBR_CONTROL	0x77c
 #define ATI_VERB_SET_MULTICHANNEL_1	0x785
 #define ATI_VERB_SET_MULTICHANNEL_3	0x786
 #define ATI_VERB_SET_MULTICHANNEL_5	0x787
@@ -2810,6 +2811,7 @@ static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
 #define ATI_VERB_GET_MULTICHANNEL_23	0xf78
 #define ATI_VERB_GET_MULTICHANNEL_45	0xf79
 #define ATI_VERB_GET_MULTICHANNEL_67	0xf7a
+#define ATI_VERB_GET_HBR_CONTROL	0xf7c
 #define ATI_VERB_GET_MULTICHANNEL_1	0xf85
 #define ATI_VERB_GET_MULTICHANNEL_3	0xf86
 #define ATI_VERB_GET_MULTICHANNEL_5	0xf87
@@ -2821,6 +2823,9 @@ static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
 #define ATI_MULTICHANNEL_MODE_PAIRED	0
 #define ATI_MULTICHANNEL_MODE_SINGLE	1
 
+#define ATI_HBR_CAPABLE 0x01
+#define ATI_HBR_ENABLE 0x10
+
 static int atihdmi_pin_get_eld(struct hda_codec *codec, hda_nid_t nid,
 			   unsigned char *buf, int *eld_size)
 {
@@ -3015,6 +3020,35 @@ static void atihdmi_paired_cea_alloc_to_tlv_chmap(struct cea_channel_speaker_all
 	WARN_ON(count != channels);
 }
 
+static int atihdmi_pin_hbr_setup(struct hda_codec *codec, hda_nid_t pin_nid,
+				 bool hbr)
+{
+	int hbr_ctl, hbr_ctl_new;
+
+	hbr_ctl = snd_hda_codec_read(codec, pin_nid, 0, ATI_VERB_GET_HBR_CONTROL, 0);
+	if (hbr_ctl & ATI_HBR_CAPABLE) {
+		if (hbr)
+			hbr_ctl_new = hbr_ctl | ATI_HBR_ENABLE;
+		else
+			hbr_ctl_new = hbr_ctl & ~ATI_HBR_ENABLE;
+
+		snd_printdd("atihdmi_pin_hbr_setup: "
+				"NID=0x%x, %shbr-ctl=0x%x\n",
+				pin_nid,
+				hbr_ctl == hbr_ctl_new ? "" : "new-",
+				hbr_ctl_new);
+
+		if (hbr_ctl != hbr_ctl_new)
+			snd_hda_codec_write(codec, pin_nid, 0,
+						ATI_VERB_SET_HBR_CONTROL,
+						hbr_ctl_new);
+
+	} else if (hbr)
+		return -EINVAL;
+
+	return 0;
+}
+
 static int atihdmi_init(struct hda_codec *codec)
 {
 	struct hdmi_spec *spec = codec->spec;
@@ -3060,6 +3094,7 @@ static int patch_atihdmi(struct hda_codec *codec)
 	spec->ops.pin_get_slot_channel = atihdmi_pin_get_slot_channel;
 	spec->ops.pin_set_slot_channel = atihdmi_pin_set_slot_channel;
 	spec->ops.pin_setup_infoframe = atihdmi_pin_setup_infoframe;
+	spec->ops.pin_hbr_setup = atihdmi_pin_hbr_setup;
 
 	if (!has_amd_full_remap_support(codec)) {
 		/* override to ATI/AMD-specific versions with pairwise mapping */
-- 
cgit 


From 84d69e790f48ff2e8472a8cf602243e43683eaf0 Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@iki.fi>
Date: Thu, 24 Oct 2013 21:10:38 +0300
Subject: ALSA: hda - hdmi: Disable ramp-up/down for non-PCM on AMD codecs

Recent AMD HDMI codecs (revision ID 3 and later, 0x100300 as reported by
procfs codec#0) have a configurable ramp-up/down functionality.

The documentation ( http://www.x.org/docs/AMD/AMD_HDA_verbs_v2.pdf )
specifies that 180 ("180/256 =~ 0.7") is recommended for PCM and 0 for
non-PCM.

Apply the recommended values according to provided S/PDIF AES0 settings
since ramp-up/down does not make sense for non-PCM.

v2: adapted to hdmi_ops infrastructure

* More note from Anssi:
actually, re-reading mails reveals that Olivier didn't find the
expected difference with this setting, except for "maybe slightly
slower startup with AES0=6" (i.e. value 0, which is unexpected).

So maybe
a) it makes too unnoticiable a difference, or
b) only affects certain hardware (card and/or sink), or
c) ramp-up/down is only triggered with the MUTE bit of
   ATI_VERB_SET_MULTICHANNEL_xx which is also rev3+ specific,
   but is not presently used by the driver,
or something else.

So there's a significant chance setting ramp rate is useless for us ATM,
but probably does not do actual harm either.

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Tested-by: Olivier Langlois <olivier@trillion01.com> # v1
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index f6a97607e522..7bd89bf62559 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -2818,6 +2818,10 @@ static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
 #define ATI_VERB_GET_MULTICHANNEL_7	0xf88
 #define ATI_VERB_GET_MULTICHANNEL_MODE	0xf89
 
+/* AMD specific HDA cvt verbs */
+#define ATI_VERB_SET_RAMP_RATE		0x770
+#define ATI_VERB_GET_RAMP_RATE		0xf70
+
 #define ATI_OUT_ENABLE 0x1
 
 #define ATI_MULTICHANNEL_MODE_PAIRED	0
@@ -3049,6 +3053,23 @@ static int atihdmi_pin_hbr_setup(struct hda_codec *codec, hda_nid_t pin_nid,
 	return 0;
 }
 
+static int atihdmi_setup_stream(struct hda_codec *codec, hda_nid_t cvt_nid,
+				hda_nid_t pin_nid, u32 stream_tag, int format)
+{
+
+	if (is_amdhdmi_rev3_or_later(codec)) {
+		int ramp_rate = 180; /* default as per AMD spec */
+		/* disable ramp-up/down for non-pcm as per AMD spec */
+		if (format & AC_FMT_TYPE_NON_PCM)
+			ramp_rate = 0;
+
+		snd_hda_codec_write(codec, cvt_nid, 0, ATI_VERB_SET_RAMP_RATE, ramp_rate);
+	}
+
+	return hdmi_setup_stream(codec, cvt_nid, pin_nid, stream_tag, format);
+}
+
+
 static int atihdmi_init(struct hda_codec *codec)
 {
 	struct hdmi_spec *spec = codec->spec;
@@ -3095,6 +3116,7 @@ static int patch_atihdmi(struct hda_codec *codec)
 	spec->ops.pin_set_slot_channel = atihdmi_pin_set_slot_channel;
 	spec->ops.pin_setup_infoframe = atihdmi_pin_setup_infoframe;
 	spec->ops.pin_hbr_setup = atihdmi_pin_hbr_setup;
+	spec->ops.setup_stream = atihdmi_setup_stream;
 
 	if (!has_amd_full_remap_support(codec)) {
 		/* override to ATI/AMD-specific versions with pairwise mapping */
-- 
cgit 


From 7342017f4a0f129d277f78b8761f2732661ba30a Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@iki.fi>
Date: Fri, 25 Oct 2013 01:45:18 +0300
Subject: ALSA: hda - hdmi: Re-setup pin and infoframe on plug-in on all codecs

hdmi_setup_audio_infoframe() does not set up pin and infoframe if there
is no connected sink. If a sink is connected while audio playback is
already in progress, the pin and infoframe will not be properly set up,
causing no audio or wrongly mapped audio.

On Intel Haswell codecs the hdmi_setup_audio_infoframe() is already
called again from hdmi_present_sense() when an ELD appears because
transcoder:port mapping may have changed.

Make the call non-Haswell-specific so that audio will be properly set up
if the playback was started before a sink was connected.

Tested on non-Haswell Intel HDMI codec by plugging sink in during
playback.

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 7bd89bf62559..772827b9fb20 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -1534,11 +1534,12 @@ static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
 		pin_eld->eld_size = eld->eld_size;
 		pin_eld->info = eld->info;
 
-		/* Haswell-specific workaround: re-setup when the transcoder is
-		 * changed during the stream playback
+		/*
+		 * Re-setup pin and infoframe. This is needed e.g. when
+		 * - sink is first plugged-in (infoframe is not set up if !monitor_present)
+		 * - transcoder can change during stream playback on Haswell
 		 */
-		if (is_haswell(codec) &&
-		    eld->eld_valid && !old_eld_valid && per_pin->setup)
+		if (eld->eld_valid && !old_eld_valid && per_pin->setup)
 			hdmi_setup_audio_infoframe(codec, per_pin,
 						   per_pin->non_pcm);
 	}
-- 
cgit 


From ceaec15d49f29de1f8864e31ff4007c34b031bff Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 17 Sep 2013 08:07:11 -0400
Subject: 9p: make v9fs_cache_inode_{get,put,set}_cookie empty inlines for
 !9P_CACHEFS

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/9p/cache.h          | 12 ++++++++++++
 fs/9p/vfs_file.c       |  2 --
 fs/9p/vfs_inode.c      |  6 ------
 fs/9p/vfs_inode_dotl.c |  4 ----
 4 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/fs/9p/cache.h b/fs/9p/cache.h
index 40cc54ced5d9..2f9675491095 100644
--- a/fs/9p/cache.h
+++ b/fs/9p/cache.h
@@ -101,6 +101,18 @@ static inline void v9fs_fscache_wait_on_page_write(struct inode *inode,
 
 #else /* CONFIG_9P_FSCACHE */
 
+static inline void v9fs_cache_inode_get_cookie(struct inode *inode)
+{
+}
+
+static inline void v9fs_cache_inode_put_cookie(struct inode *inode)
+{
+}
+
+static inline void v9fs_cache_inode_set_cookie(struct inode *inode, struct file *file)
+{
+}
+
 static inline int v9fs_fscache_release_page(struct page *page,
 					    gfp_t gfp) {
 	return 1;
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index aa5ecf479a57..a0df3e73c2b1 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -105,10 +105,8 @@ int v9fs_file_open(struct inode *inode, struct file *file)
 		v9inode->writeback_fid = (void *) fid;
 	}
 	mutex_unlock(&v9inode->v_mutex);
-#ifdef CONFIG_9P_FSCACHE
 	if (v9ses->cache)
 		v9fs_cache_inode_set_cookie(inode, file);
-#endif
 	return 0;
 out_error:
 	p9_client_clunk(file->private_data);
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index 94de6d1482e2..4e65aa903345 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -448,9 +448,7 @@ void v9fs_evict_inode(struct inode *inode)
 	clear_inode(inode);
 	filemap_fdatawrite(inode->i_mapping);
 
-#ifdef CONFIG_9P_FSCACHE
 	v9fs_cache_inode_put_cookie(inode);
-#endif
 	/* clunk the fid stashed in writeback_fid */
 	if (v9inode->writeback_fid) {
 		p9_client_clunk(v9inode->writeback_fid);
@@ -531,9 +529,7 @@ static struct inode *v9fs_qid_iget(struct super_block *sb,
 		goto error;
 
 	v9fs_stat2inode(st, inode, sb);
-#ifdef CONFIG_9P_FSCACHE
 	v9fs_cache_inode_get_cookie(inode);
-#endif
 	unlock_new_inode(inode);
 	return inode;
 error:
@@ -905,10 +901,8 @@ v9fs_vfs_atomic_open(struct inode *dir, struct dentry *dentry,
 		goto error;
 
 	file->private_data = fid;
-#ifdef CONFIG_9P_FSCACHE
 	if (v9ses->cache)
 		v9fs_cache_inode_set_cookie(dentry->d_inode, file);
-#endif
 
 	*opened |= FILE_CREATED;
 out:
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index a7c481402c46..4c10edec26a0 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -141,9 +141,7 @@ static struct inode *v9fs_qid_iget_dotl(struct super_block *sb,
 		goto error;
 
 	v9fs_stat2inode_dotl(st, inode);
-#ifdef CONFIG_9P_FSCACHE
 	v9fs_cache_inode_get_cookie(inode);
-#endif
 	retval = v9fs_get_acl(inode, fid);
 	if (retval)
 		goto error;
@@ -355,10 +353,8 @@ v9fs_vfs_atomic_open_dotl(struct inode *dir, struct dentry *dentry,
 	if (err)
 		goto err_clunk_old_fid;
 	file->private_data = ofid;
-#ifdef CONFIG_9P_FSCACHE
 	if (v9ses->cache)
 		v9fs_cache_inode_set_cookie(inode, file);
-#endif
 	*opened |= FILE_CREATED;
 out:
 	v9fs_put_acl(dacl, pacl);
-- 
cgit 


From 3a93e17cf68b01fa29c7a2e861ce508dcd3401ca Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 15 Sep 2013 19:41:16 -0400
Subject: ecryptfs: check DCACHE_OP_REVALIDATE instead of ->d_op

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/ecryptfs/dentry.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ecryptfs/dentry.c b/fs/ecryptfs/dentry.c
index bf12ba5dd223..46e31c92e574 100644
--- a/fs/ecryptfs/dentry.c
+++ b/fs/ecryptfs/dentry.c
@@ -51,7 +51,7 @@ static int ecryptfs_d_revalidate(struct dentry *dentry, unsigned int flags)
 		return -ECHILD;
 
 	lower_dentry = ecryptfs_dentry_to_lower(dentry);
-	if (!lower_dentry->d_op || !lower_dentry->d_op->d_revalidate)
+	if (!(lower_dentry->d_flags & DCACHE_OP_REVALIDATE))
 		goto out;
 	rc = lower_dentry->d_op->d_revalidate(lower_dentry, flags);
 	if (dentry->d_inode) {
-- 
cgit 


From 2edbfbf1c1ab0aeb58ce8abfb69b6f6b63542848 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 15 Sep 2013 20:45:11 -0400
Subject: ecryptfs: don't leave RCU pathwalk immediately

If the underlying dentry doesn't have ->d_revalidate(), there's no need to
force dropping out of RCU mode.  All we need for that is to make freeing
ecryptfs_dentry_info RCU-delayed.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/ecryptfs/dentry.c          | 30 ++++++++++++++++--------------
 fs/ecryptfs/ecryptfs_kernel.h |  5 ++++-
 2 files changed, 20 insertions(+), 15 deletions(-)

diff --git a/fs/ecryptfs/dentry.c b/fs/ecryptfs/dentry.c
index 46e31c92e574..8cefa8e13bcc 100644
--- a/fs/ecryptfs/dentry.c
+++ b/fs/ecryptfs/dentry.c
@@ -44,15 +44,15 @@
  */
 static int ecryptfs_d_revalidate(struct dentry *dentry, unsigned int flags)
 {
-	struct dentry *lower_dentry;
-	int rc = 1;
+	struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);
+	int rc;
+
+	if (!(lower_dentry->d_flags & DCACHE_OP_REVALIDATE))
+		return 1;
 
 	if (flags & LOOKUP_RCU)
 		return -ECHILD;
 
-	lower_dentry = ecryptfs_dentry_to_lower(dentry);
-	if (!(lower_dentry->d_flags & DCACHE_OP_REVALIDATE))
-		goto out;
 	rc = lower_dentry->d_op->d_revalidate(lower_dentry, flags);
 	if (dentry->d_inode) {
 		struct inode *lower_inode =
@@ -60,12 +60,17 @@ static int ecryptfs_d_revalidate(struct dentry *dentry, unsigned int flags)
 
 		fsstack_copy_attr_all(dentry->d_inode, lower_inode);
 	}
-out:
 	return rc;
 }
 
 struct kmem_cache *ecryptfs_dentry_info_cache;
 
+static void ecryptfs_dentry_free_rcu(struct rcu_head *head)
+{
+	kmem_cache_free(ecryptfs_dentry_info_cache,
+		container_of(head, struct ecryptfs_dentry_info, rcu));
+}
+
 /**
  * ecryptfs_d_release
  * @dentry: The ecryptfs dentry
@@ -74,15 +79,12 @@ struct kmem_cache *ecryptfs_dentry_info_cache;
  */
 static void ecryptfs_d_release(struct dentry *dentry)
 {
-	if (ecryptfs_dentry_to_private(dentry)) {
-		if (ecryptfs_dentry_to_lower(dentry)) {
-			dput(ecryptfs_dentry_to_lower(dentry));
-			mntput(ecryptfs_dentry_to_lower_mnt(dentry));
-		}
-		kmem_cache_free(ecryptfs_dentry_info_cache,
-				ecryptfs_dentry_to_private(dentry));
+	struct ecryptfs_dentry_info *p = dentry->d_fsdata;
+	if (p) {
+		if (p->lower_path.dentry)
+			path_put(&p->lower_path);
+		call_rcu(&p->rcu, ecryptfs_dentry_free_rcu);
 	}
-	return;
 }
 
 const struct dentry_operations ecryptfs_dops = {
diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index df19d34a033b..e7ad2b3f24a7 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -261,7 +261,10 @@ struct ecryptfs_inode_info {
  * vfsmount too. */
 struct ecryptfs_dentry_info {
 	struct path lower_path;
-	struct ecryptfs_crypt_stat *crypt_stat;
+	union {
+		struct ecryptfs_crypt_stat *crypt_stat;
+		struct rcu_head rcu;
+	};
 };
 
 /**
-- 
cgit 


From 92dd123033d50051d1352fada1bad91c22a119cf Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 15 Sep 2013 20:50:13 -0400
Subject: ecryptfs: get rid of ecryptfs_set_dentry_lower{,_mnt}

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/ecryptfs/ecryptfs_kernel.h | 14 --------------
 fs/ecryptfs/inode.c           |  4 ++--
 fs/ecryptfs/main.c            |  3 +--
 3 files changed, 3 insertions(+), 18 deletions(-)

diff --git a/fs/ecryptfs/ecryptfs_kernel.h b/fs/ecryptfs/ecryptfs_kernel.h
index e7ad2b3f24a7..90d1882b306f 100644
--- a/fs/ecryptfs/ecryptfs_kernel.h
+++ b/fs/ecryptfs/ecryptfs_kernel.h
@@ -515,13 +515,6 @@ ecryptfs_dentry_to_lower(struct dentry *dentry)
 	return ((struct ecryptfs_dentry_info *)dentry->d_fsdata)->lower_path.dentry;
 }
 
-static inline void
-ecryptfs_set_dentry_lower(struct dentry *dentry, struct dentry *lower_dentry)
-{
-	((struct ecryptfs_dentry_info *)dentry->d_fsdata)->lower_path.dentry =
-		lower_dentry;
-}
-
 static inline struct vfsmount *
 ecryptfs_dentry_to_lower_mnt(struct dentry *dentry)
 {
@@ -534,13 +527,6 @@ ecryptfs_dentry_to_lower_path(struct dentry *dentry)
 	return &((struct ecryptfs_dentry_info *)dentry->d_fsdata)->lower_path;
 }
 
-static inline void
-ecryptfs_set_dentry_lower_mnt(struct dentry *dentry, struct vfsmount *lower_mnt)
-{
-	((struct ecryptfs_dentry_info *)dentry->d_fsdata)->lower_path.mnt =
-		lower_mnt;
-}
-
 #define ecryptfs_printk(type, fmt, arg...) \
         __ecryptfs_printk(type "%s: " fmt, __func__, ## arg);
 __printf(1, 2)
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 67e9b6339691..2ca62c40c6c2 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -361,8 +361,8 @@ static int ecryptfs_lookup_interpose(struct dentry *dentry,
 	BUG_ON(!d_count(lower_dentry));
 
 	ecryptfs_set_dentry_private(dentry, dentry_info);
-	ecryptfs_set_dentry_lower(dentry, lower_dentry);
-	ecryptfs_set_dentry_lower_mnt(dentry, lower_mnt);
+	dentry_info->lower_path.mnt = lower_mnt;
+	dentry_info->lower_path.dentry = lower_dentry;
 
 	if (!lower_dentry->d_inode) {
 		/* We want to add because we couldn't find in lower */
diff --git a/fs/ecryptfs/main.c b/fs/ecryptfs/main.c
index eb1c5979ecaf..1b119d3bf924 100644
--- a/fs/ecryptfs/main.c
+++ b/fs/ecryptfs/main.c
@@ -585,8 +585,7 @@ static struct dentry *ecryptfs_mount(struct file_system_type *fs_type, int flags
 
 	/* ->kill_sb() will take care of root_info */
 	ecryptfs_set_dentry_private(s->s_root, root_info);
-	ecryptfs_set_dentry_lower(s->s_root, path.dentry);
-	ecryptfs_set_dentry_lower_mnt(s->s_root, path.mnt);
+	root_info->lower_path = path;
 
 	s->s_flags |= MS_ACTIVE;
 	return dget(s->s_root);
-- 
cgit 


From cbe9c08524a68a1bfc1ba8d84dabb985d18ff08d Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 15 Sep 2013 20:54:18 -0400
Subject: ecryptfs: ->lower_path.dentry is never NULL

... on anything found via ->d_fsdata

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/ecryptfs/dentry.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/ecryptfs/dentry.c b/fs/ecryptfs/dentry.c
index 8cefa8e13bcc..4000f6b3a750 100644
--- a/fs/ecryptfs/dentry.c
+++ b/fs/ecryptfs/dentry.c
@@ -81,8 +81,7 @@ static void ecryptfs_d_release(struct dentry *dentry)
 {
 	struct ecryptfs_dentry_info *p = dentry->d_fsdata;
 	if (p) {
-		if (p->lower_path.dentry)
-			path_put(&p->lower_path);
+		path_put(&p->lower_path);
 		call_rcu(&p->rcu, ecryptfs_dentry_free_rcu);
 	}
 }
-- 
cgit 


From 12f38872224542c4683ab72a88394fc89b87ca32 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 15 Sep 2013 21:20:49 -0400
Subject: libfs: get exports to definitions of objects being exported...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/libfs.c | 69 +++++++++++++++++++++++++++++++-------------------------------
 1 file changed, 34 insertions(+), 35 deletions(-)

diff --git a/fs/libfs.c b/fs/libfs.c
index 3a3a9b53bf5a..828622a31d30 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -31,6 +31,7 @@ int simple_getattr(struct vfsmount *mnt, struct dentry *dentry,
 	stat->blocks = inode->i_mapping->nrpages << (PAGE_CACHE_SHIFT - 9);
 	return 0;
 }
+EXPORT_SYMBOL(simple_getattr);
 
 int simple_statfs(struct dentry *dentry, struct kstatfs *buf)
 {
@@ -39,6 +40,7 @@ int simple_statfs(struct dentry *dentry, struct kstatfs *buf)
 	buf->f_namelen = NAME_MAX;
 	return 0;
 }
+EXPORT_SYMBOL(simple_statfs);
 
 /*
  * Retaining negative dentries for an in-memory filesystem just wastes
@@ -66,6 +68,7 @@ struct dentry *simple_lookup(struct inode *dir, struct dentry *dentry, unsigned
 	d_add(dentry, NULL);
 	return NULL;
 }
+EXPORT_SYMBOL(simple_lookup);
 
 int dcache_dir_open(struct inode *inode, struct file *file)
 {
@@ -75,12 +78,14 @@ int dcache_dir_open(struct inode *inode, struct file *file)
 
 	return file->private_data ? 0 : -ENOMEM;
 }
+EXPORT_SYMBOL(dcache_dir_open);
 
 int dcache_dir_close(struct inode *inode, struct file *file)
 {
 	dput(file->private_data);
 	return 0;
 }
+EXPORT_SYMBOL(dcache_dir_close);
 
 loff_t dcache_dir_lseek(struct file *file, loff_t offset, int whence)
 {
@@ -123,6 +128,7 @@ loff_t dcache_dir_lseek(struct file *file, loff_t offset, int whence)
 	mutex_unlock(&dentry->d_inode->i_mutex);
 	return offset;
 }
+EXPORT_SYMBOL(dcache_dir_lseek);
 
 /* Relationship between i_mode and the DT_xxx types */
 static inline unsigned char dt_type(struct inode *inode)
@@ -172,11 +178,13 @@ int dcache_readdir(struct file *file, struct dir_context *ctx)
 	spin_unlock(&dentry->d_lock);
 	return 0;
 }
+EXPORT_SYMBOL(dcache_readdir);
 
 ssize_t generic_read_dir(struct file *filp, char __user *buf, size_t siz, loff_t *ppos)
 {
 	return -EISDIR;
 }
+EXPORT_SYMBOL(generic_read_dir);
 
 const struct file_operations simple_dir_operations = {
 	.open		= dcache_dir_open,
@@ -186,10 +194,12 @@ const struct file_operations simple_dir_operations = {
 	.iterate	= dcache_readdir,
 	.fsync		= noop_fsync,
 };
+EXPORT_SYMBOL(simple_dir_operations);
 
 const struct inode_operations simple_dir_inode_operations = {
 	.lookup		= simple_lookup,
 };
+EXPORT_SYMBOL(simple_dir_inode_operations);
 
 static const struct super_operations simple_super_operations = {
 	.statfs		= simple_statfs,
@@ -244,6 +254,7 @@ Enomem:
 	deactivate_locked_super(s);
 	return ERR_PTR(-ENOMEM);
 }
+EXPORT_SYMBOL(mount_pseudo);
 
 int simple_open(struct inode *inode, struct file *file)
 {
@@ -251,6 +262,7 @@ int simple_open(struct inode *inode, struct file *file)
 		file->private_data = inode->i_private;
 	return 0;
 }
+EXPORT_SYMBOL(simple_open);
 
 int simple_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
 {
@@ -263,6 +275,7 @@ int simple_link(struct dentry *old_dentry, struct inode *dir, struct dentry *den
 	d_instantiate(dentry, inode);
 	return 0;
 }
+EXPORT_SYMBOL(simple_link);
 
 int simple_empty(struct dentry *dentry)
 {
@@ -283,6 +296,7 @@ out:
 	spin_unlock(&dentry->d_lock);
 	return ret;
 }
+EXPORT_SYMBOL(simple_empty);
 
 int simple_unlink(struct inode *dir, struct dentry *dentry)
 {
@@ -293,6 +307,7 @@ int simple_unlink(struct inode *dir, struct dentry *dentry)
 	dput(dentry);
 	return 0;
 }
+EXPORT_SYMBOL(simple_unlink);
 
 int simple_rmdir(struct inode *dir, struct dentry *dentry)
 {
@@ -304,6 +319,7 @@ int simple_rmdir(struct inode *dir, struct dentry *dentry)
 	drop_nlink(dir);
 	return 0;
 }
+EXPORT_SYMBOL(simple_rmdir);
 
 int simple_rename(struct inode *old_dir, struct dentry *old_dentry,
 		struct inode *new_dir, struct dentry *new_dentry)
@@ -330,6 +346,7 @@ int simple_rename(struct inode *old_dir, struct dentry *old_dentry,
 
 	return 0;
 }
+EXPORT_SYMBOL(simple_rename);
 
 /**
  * simple_setattr - setattr for simple filesystem
@@ -370,6 +387,7 @@ int simple_readpage(struct file *file, struct page *page)
 	unlock_page(page);
 	return 0;
 }
+EXPORT_SYMBOL(simple_readpage);
 
 int simple_write_begin(struct file *file, struct address_space *mapping,
 			loff_t pos, unsigned len, unsigned flags,
@@ -393,6 +411,7 @@ int simple_write_begin(struct file *file, struct address_space *mapping,
 	}
 	return 0;
 }
+EXPORT_SYMBOL(simple_write_begin);
 
 /**
  * simple_write_end - .write_end helper for non-block-device FSes
@@ -444,6 +463,7 @@ int simple_write_end(struct file *file, struct address_space *mapping,
 
 	return copied;
 }
+EXPORT_SYMBOL(simple_write_end);
 
 /*
  * the inodes created here are not hashed. If you use iunique to generate
@@ -512,6 +532,7 @@ out:
 	dput(root);
 	return -ENOMEM;
 }
+EXPORT_SYMBOL(simple_fill_super);
 
 static DEFINE_SPINLOCK(pin_fs_lock);
 
@@ -534,6 +555,7 @@ int simple_pin_fs(struct file_system_type *type, struct vfsmount **mount, int *c
 	mntput(mnt);
 	return 0;
 }
+EXPORT_SYMBOL(simple_pin_fs);
 
 void simple_release_fs(struct vfsmount **mount, int *count)
 {
@@ -545,6 +567,7 @@ void simple_release_fs(struct vfsmount **mount, int *count)
 	spin_unlock(&pin_fs_lock);
 	mntput(mnt);
 }
+EXPORT_SYMBOL(simple_release_fs);
 
 /**
  * simple_read_from_buffer - copy data from the buffer to user space
@@ -579,6 +602,7 @@ ssize_t simple_read_from_buffer(void __user *to, size_t count, loff_t *ppos,
 	*ppos = pos + count;
 	return count;
 }
+EXPORT_SYMBOL(simple_read_from_buffer);
 
 /**
  * simple_write_to_buffer - copy data from user space to the buffer
@@ -613,6 +637,7 @@ ssize_t simple_write_to_buffer(void *to, size_t available, loff_t *ppos,
 	*ppos = pos + count;
 	return count;
 }
+EXPORT_SYMBOL(simple_write_to_buffer);
 
 /**
  * memory_read_from_buffer - copy data from the buffer
@@ -644,6 +669,7 @@ ssize_t memory_read_from_buffer(void *to, size_t count, loff_t *ppos,
 
 	return count;
 }
+EXPORT_SYMBOL(memory_read_from_buffer);
 
 /*
  * Transaction based IO.
@@ -665,6 +691,7 @@ void simple_transaction_set(struct file *file, size_t n)
 	smp_mb();
 	ar->size = n;
 }
+EXPORT_SYMBOL(simple_transaction_set);
 
 char *simple_transaction_get(struct file *file, const char __user *buf, size_t size)
 {
@@ -696,6 +723,7 @@ char *simple_transaction_get(struct file *file, const char __user *buf, size_t s
 
 	return ar->data;
 }
+EXPORT_SYMBOL(simple_transaction_get);
 
 ssize_t simple_transaction_read(struct file *file, char __user *buf, size_t size, loff_t *pos)
 {
@@ -705,12 +733,14 @@ ssize_t simple_transaction_read(struct file *file, char __user *buf, size_t size
 		return 0;
 	return simple_read_from_buffer(buf, size, pos, ar->data, ar->size);
 }
+EXPORT_SYMBOL(simple_transaction_read);
 
 int simple_transaction_release(struct inode *inode, struct file *file)
 {
 	free_page((unsigned long)file->private_data);
 	return 0;
 }
+EXPORT_SYMBOL(simple_transaction_release);
 
 /* Simple attribute files */
 
@@ -746,12 +776,14 @@ int simple_attr_open(struct inode *inode, struct file *file,
 
 	return nonseekable_open(inode, file);
 }
+EXPORT_SYMBOL_GPL(simple_attr_open);
 
 int simple_attr_release(struct inode *inode, struct file *file)
 {
 	kfree(file->private_data);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(simple_attr_release);	/* GPL-only?  This?  Really? */
 
 /* read from the buffer that is filled with the get function */
 ssize_t simple_attr_read(struct file *file, char __user *buf,
@@ -787,6 +819,7 @@ out:
 	mutex_unlock(&attr->mutex);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(simple_attr_read);
 
 /* interpret the buffer as a number to call the set function with */
 ssize_t simple_attr_write(struct file *file, const char __user *buf,
@@ -819,6 +852,7 @@ out:
 	mutex_unlock(&attr->mutex);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(simple_attr_write);
 
 /**
  * generic_fh_to_dentry - generic helper for the fh_to_dentry export operation
@@ -957,39 +991,4 @@ int noop_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 {
 	return 0;
 }
-
-EXPORT_SYMBOL(dcache_dir_close);
-EXPORT_SYMBOL(dcache_dir_lseek);
-EXPORT_SYMBOL(dcache_dir_open);
-EXPORT_SYMBOL(dcache_readdir);
-EXPORT_SYMBOL(generic_read_dir);
-EXPORT_SYMBOL(mount_pseudo);
-EXPORT_SYMBOL(simple_write_begin);
-EXPORT_SYMBOL(simple_write_end);
-EXPORT_SYMBOL(simple_dir_inode_operations);
-EXPORT_SYMBOL(simple_dir_operations);
-EXPORT_SYMBOL(simple_empty);
-EXPORT_SYMBOL(simple_fill_super);
-EXPORT_SYMBOL(simple_getattr);
-EXPORT_SYMBOL(simple_open);
-EXPORT_SYMBOL(simple_link);
-EXPORT_SYMBOL(simple_lookup);
-EXPORT_SYMBOL(simple_pin_fs);
-EXPORT_SYMBOL(simple_readpage);
-EXPORT_SYMBOL(simple_release_fs);
-EXPORT_SYMBOL(simple_rename);
-EXPORT_SYMBOL(simple_rmdir);
-EXPORT_SYMBOL(simple_statfs);
 EXPORT_SYMBOL(noop_fsync);
-EXPORT_SYMBOL(simple_unlink);
-EXPORT_SYMBOL(simple_read_from_buffer);
-EXPORT_SYMBOL(simple_write_to_buffer);
-EXPORT_SYMBOL(memory_read_from_buffer);
-EXPORT_SYMBOL(simple_transaction_set);
-EXPORT_SYMBOL(simple_transaction_get);
-EXPORT_SYMBOL(simple_transaction_read);
-EXPORT_SYMBOL(simple_transaction_release);
-EXPORT_SYMBOL_GPL(simple_attr_open);
-EXPORT_SYMBOL_GPL(simple_attr_release);
-EXPORT_SYMBOL_GPL(simple_attr_read);
-EXPORT_SYMBOL_GPL(simple_attr_write);
-- 
cgit 


From 87dc800be2499128efb3a6f059d75dc8e1e6d503 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 16 Sep 2013 10:30:04 -0400
Subject: new helper: kfree_put_link()

duplicated to hell and back...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/cifs/cifsfs.c    |  2 +-
 fs/cifs/cifsfs.h    |  2 --
 fs/cifs/link.c      |  7 -------
 fs/ecryptfs/inode.c | 12 +-----------
 fs/gfs2/inode.c     |  9 +--------
 fs/libfs.c          | 10 ++++++++++
 fs/proc/self.c      | 10 +---------
 include/linux/fs.h  |  1 +
 8 files changed, 15 insertions(+), 38 deletions(-)

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index a16b4e58bcc6..801975c34cf9 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -860,7 +860,7 @@ const struct inode_operations cifs_file_inode_ops = {
 const struct inode_operations cifs_symlink_inode_ops = {
 	.readlink = generic_readlink,
 	.follow_link = cifs_follow_link,
-	.put_link = cifs_put_link,
+	.put_link = kfree_put_link,
 	.permission = cifs_permission,
 	/* BB add the following two eventually */
 	/* revalidate: cifs_revalidate,
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index 6d0b07217ac9..26a754f49ba1 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -115,8 +115,6 @@ extern struct vfsmount *cifs_dfs_d_automount(struct path *path);
 
 /* Functions related to symlinks */
 extern void *cifs_follow_link(struct dentry *direntry, struct nameidata *nd);
-extern void cifs_put_link(struct dentry *direntry,
-			  struct nameidata *nd, void *);
 extern int cifs_readlink(struct dentry *direntry, char __user *buffer,
 			 int buflen);
 extern int cifs_symlink(struct inode *inode, struct dentry *direntry,
diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 7e36ceba0c7a..cc0234710ddb 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -621,10 +621,3 @@ symlink_exit:
 	free_xid(xid);
 	return rc;
 }
-
-void cifs_put_link(struct dentry *direntry, struct nameidata *nd, void *cookie)
-{
-	char *p = nd_get_link(nd);
-	if (!IS_ERR(p))
-		kfree(p);
-}
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 2ca62c40c6c2..0f9b66eaa767 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -703,16 +703,6 @@ out:
 	return NULL;
 }
 
-static void
-ecryptfs_put_link(struct dentry *dentry, struct nameidata *nd, void *ptr)
-{
-	char *buf = nd_get_link(nd);
-	if (!IS_ERR(buf)) {
-		/* Free the char* */
-		kfree(buf);
-	}
-}
-
 /**
  * upper_size_to_lower_size
  * @crypt_stat: Crypt_stat associated with file
@@ -1121,7 +1111,7 @@ out:
 const struct inode_operations ecryptfs_symlink_iops = {
 	.readlink = generic_readlink,
 	.follow_link = ecryptfs_follow_link,
-	.put_link = ecryptfs_put_link,
+	.put_link = kfree_put_link,
 	.permission = ecryptfs_permission,
 	.setattr = ecryptfs_setattr,
 	.getattr = ecryptfs_getattr_link,
diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index ced3257f06e8..d2384f7c53e1 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -1506,13 +1506,6 @@ out:
 	return NULL;
 }
 
-static void gfs2_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
-{
-	char *s = nd_get_link(nd);
-	if (!IS_ERR(s))
-		kfree(s);
-}
-
 /**
  * gfs2_permission -
  * @inode: The inode
@@ -1864,7 +1857,7 @@ const struct inode_operations gfs2_dir_iops = {
 const struct inode_operations gfs2_symlink_iops = {
 	.readlink = generic_readlink,
 	.follow_link = gfs2_follow_link,
-	.put_link = gfs2_put_link,
+	.put_link = kfree_put_link,
 	.permission = gfs2_permission,
 	.setattr = gfs2_setattr,
 	.getattr = gfs2_getattr,
diff --git a/fs/libfs.c b/fs/libfs.c
index 828622a31d30..8c5018493154 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -10,6 +10,7 @@
 #include <linux/vfs.h>
 #include <linux/quotaops.h>
 #include <linux/mutex.h>
+#include <linux/namei.h>
 #include <linux/exportfs.h>
 #include <linux/writeback.h>
 #include <linux/buffer_head.h> /* sync_mapping_buffers */
@@ -992,3 +993,12 @@ int noop_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 	return 0;
 }
 EXPORT_SYMBOL(noop_fsync);
+
+void kfree_put_link(struct dentry *dentry, struct nameidata *nd,
+				void *cookie)
+{
+	char *s = nd_get_link(nd);
+	if (!IS_ERR(s))
+		kfree(s);
+}
+EXPORT_SYMBOL(kfree_put_link);
diff --git a/fs/proc/self.c b/fs/proc/self.c
index 6b6a993b5c25..ffeb202ec942 100644
--- a/fs/proc/self.c
+++ b/fs/proc/self.c
@@ -36,18 +36,10 @@ static void *proc_self_follow_link(struct dentry *dentry, struct nameidata *nd)
 	return NULL;
 }
 
-static void proc_self_put_link(struct dentry *dentry, struct nameidata *nd,
-				void *cookie)
-{
-	char *s = nd_get_link(nd);
-	if (!IS_ERR(s))
-		kfree(s);
-}
-
 static const struct inode_operations proc_self_inode_operations = {
 	.readlink	= proc_self_readlink,
 	.follow_link	= proc_self_follow_link,
-	.put_link	= proc_self_put_link,
+	.put_link	= kfree_put_link,
 };
 
 static unsigned self_inum;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 3f40547ba191..d80c2437d624 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2502,6 +2502,7 @@ extern int __page_symlink(struct inode *inode, const char *symname, int len,
 		int nofs);
 extern int page_symlink(struct inode *inode, const char *symname, int len);
 extern const struct inode_operations page_symlink_inode_operations;
+extern void kfree_put_link(struct dentry *, struct nameidata *, void *);
 extern int generic_readlink(struct dentry *, char __user *, int);
 extern void generic_fillattr(struct inode *, struct kstat *);
 extern int vfs_getattr(struct path *, struct kstat *);
-- 
cgit 


From 48bc06e74be178968b53d339dbcb110cd2bb16ea Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 16 Sep 2013 10:35:31 -0400
Subject: befs: split symlink iops in two - for short and long symlinks resp.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/befs/linuxvfs.c | 61 +++++++++++++++++++++++++++---------------------------
 1 file changed, 31 insertions(+), 30 deletions(-)

diff --git a/fs/befs/linuxvfs.c b/fs/befs/linuxvfs.c
index e9c75e20db32..daa15d6ba450 100644
--- a/fs/befs/linuxvfs.c
+++ b/fs/befs/linuxvfs.c
@@ -42,7 +42,7 @@ static void befs_destroy_inode(struct inode *inode);
 static int befs_init_inodecache(void);
 static void befs_destroy_inodecache(void);
 static void *befs_follow_link(struct dentry *, struct nameidata *);
-static void befs_put_link(struct dentry *, struct nameidata *, void *);
+static void *befs_fast_follow_link(struct dentry *, struct nameidata *);
 static int befs_utf2nls(struct super_block *sb, const char *in, int in_len,
 			char **out, int *out_len);
 static int befs_nls2utf(struct super_block *sb, const char *in, int in_len,
@@ -79,10 +79,15 @@ static const struct address_space_operations befs_aops = {
 	.bmap		= befs_bmap,
 };
 
+static const struct inode_operations befs_fast_symlink_inode_operations = {
+	.readlink	= generic_readlink,
+	.follow_link	= befs_fast_follow_link,
+};
+
 static const struct inode_operations befs_symlink_inode_operations = {
 	.readlink	= generic_readlink,
 	.follow_link	= befs_follow_link,
-	.put_link	= befs_put_link,
+	.put_link	= kfree_put_link,
 };
 
 /* 
@@ -411,7 +416,10 @@ static struct inode *befs_iget(struct super_block *sb, unsigned long ino)
 		inode->i_op = &befs_dir_inode_operations;
 		inode->i_fop = &befs_dir_operations;
 	} else if (S_ISLNK(inode->i_mode)) {
-		inode->i_op = &befs_symlink_inode_operations;
+		if (befs_ino->i_flags & BEFS_LONG_SYMLINK)
+			inode->i_op = &befs_symlink_inode_operations;
+		else
+			inode->i_op = &befs_fast_symlink_inode_operations;
 	} else {
 		befs_error(sb, "Inode %lu is not a regular file, "
 			   "directory or symlink. THAT IS WRONG! BeFS has no "
@@ -477,47 +485,40 @@ befs_destroy_inodecache(void)
 static void *
 befs_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
+	struct super_block *sb = dentry->d_sb;
 	befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
+	befs_data_stream *data = &befs_ino->i_data.ds;
+	befs_off_t len = data->size;
 	char *link;
 
-	if (befs_ino->i_flags & BEFS_LONG_SYMLINK) {
-		struct super_block *sb = dentry->d_sb;
-		befs_data_stream *data = &befs_ino->i_data.ds;
-		befs_off_t len = data->size;
+	if (len == 0) {
+		befs_error(sb, "Long symlink with illegal length");
+		link = ERR_PTR(-EIO);
+	} else {
+		befs_debug(sb, "Follow long symlink");
 
-		if (len == 0) {
-			befs_error(sb, "Long symlink with illegal length");
+		link = kmalloc(len, GFP_NOFS);
+		if (!link) {
+			link = ERR_PTR(-ENOMEM);
+		} else if (befs_read_lsymlink(sb, data, link, len) != len) {
+			kfree(link);
+			befs_error(sb, "Failed to read entire long symlink");
 			link = ERR_PTR(-EIO);
 		} else {
-			befs_debug(sb, "Follow long symlink");
-
-			link = kmalloc(len, GFP_NOFS);
-			if (!link) {
-				link = ERR_PTR(-ENOMEM);
-			} else if (befs_read_lsymlink(sb, data, link, len) != len) {
-				kfree(link);
-				befs_error(sb, "Failed to read entire long symlink");
-				link = ERR_PTR(-EIO);
-			} else {
-				link[len - 1] = '\0';
-			}
+			link[len - 1] = '\0';
 		}
-	} else {
-		link = befs_ino->i_data.symlink;
 	}
-
 	nd_set_link(nd, link);
 	return NULL;
 }
 
-static void befs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
+
+static void *
+befs_fast_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
 	befs_inode_info *befs_ino = BEFS_I(dentry->d_inode);
-	if (befs_ino->i_flags & BEFS_LONG_SYMLINK) {
-		char *link = nd_get_link(nd);
-		if (!IS_ERR(link))
-			kfree(link);
-	}
+	nd_set_link(nd, befs_ino->i_data.symlink);
+	return NULL;
 }
 
 /*
-- 
cgit 


From 6de1472f1a4a3bd912f515f29d3cf52a65a4c718 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 16 Sep 2013 10:53:17 -0400
Subject: nfs: use %p[dD] instead of open-coded (and often racy) equivalents

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/nfs/dir.c           | 119 ++++++++++++++++++++-----------------------------
 fs/nfs/direct.c        |  17 +++----
 fs/nfs/file.c          | 117 ++++++++++++++++++------------------------------
 fs/nfs/namespace.c     |   5 +--
 fs/nfs/nfs3proc.c      |   8 ++--
 fs/nfs/nfs4file.c      |   4 +-
 fs/nfs/nfs4namespace.c |   7 ++-
 fs/nfs/nfs4proc.c      |   5 +--
 fs/nfs/proc.c          |   8 ++--
 fs/nfs/unlink.c        |   9 ++--
 fs/nfs/write.c         |   6 +--
 11 files changed, 119 insertions(+), 186 deletions(-)

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 02b0df769e2d..8b3dd7174fa2 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -98,9 +98,7 @@ nfs_opendir(struct inode *inode, struct file *filp)
 	struct nfs_open_dir_context *ctx;
 	struct rpc_cred *cred;
 
-	dfprintk(FILE, "NFS: open dir(%s/%s)\n",
-			filp->f_path.dentry->d_parent->d_name.name,
-			filp->f_path.dentry->d_name.name);
+	dfprintk(FILE, "NFS: open dir(%pD2)\n", filp);
 
 	nfs_inc_stats(inode, NFSIOS_VFSOPEN);
 
@@ -297,11 +295,10 @@ int nfs_readdir_search_for_cookie(struct nfs_cache_array *array, nfs_readdir_des
 				if (ctx->duped > 0
 				    && ctx->dup_cookie == *desc->dir_cookie) {
 					if (printk_ratelimit()) {
-						pr_notice("NFS: directory %s/%s contains a readdir loop."
+						pr_notice("NFS: directory %pD2 contains a readdir loop."
 								"Please contact your server vendor.  "
 								"The file: %s has duplicate cookie %llu\n",
-								desc->file->f_dentry->d_parent->d_name.name,
-								desc->file->f_dentry->d_name.name,
+								desc->file,
 								array->array[i].string.name,
 								*desc->dir_cookie);
 					}
@@ -822,9 +819,8 @@ static int nfs_readdir(struct file *file, struct dir_context *ctx)
 	struct nfs_open_dir_context *dir_ctx = file->private_data;
 	int res = 0;
 
-	dfprintk(FILE, "NFS: readdir(%s/%s) starting at cookie %llu\n",
-			dentry->d_parent->d_name.name, dentry->d_name.name,
-			(long long)ctx->pos);
+	dfprintk(FILE, "NFS: readdir(%pD2) starting at cookie %llu\n",
+			file, (long long)ctx->pos);
 	nfs_inc_stats(inode, NFSIOS_VFSGETDENTS);
 
 	/*
@@ -880,22 +876,17 @@ out:
 	nfs_unblock_sillyrename(dentry);
 	if (res > 0)
 		res = 0;
-	dfprintk(FILE, "NFS: readdir(%s/%s) returns %d\n",
-			dentry->d_parent->d_name.name, dentry->d_name.name,
-			res);
+	dfprintk(FILE, "NFS: readdir(%pD2) returns %d\n", file, res);
 	return res;
 }
 
 static loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int whence)
 {
-	struct dentry *dentry = filp->f_path.dentry;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = file_inode(filp);
 	struct nfs_open_dir_context *dir_ctx = filp->private_data;
 
-	dfprintk(FILE, "NFS: llseek dir(%s/%s, %lld, %d)\n",
-			dentry->d_parent->d_name.name,
-			dentry->d_name.name,
-			offset, whence);
+	dfprintk(FILE, "NFS: llseek dir(%pD2, %lld, %d)\n",
+			filp, offset, whence);
 
 	mutex_lock(&inode->i_mutex);
 	switch (whence) {
@@ -925,15 +916,12 @@ out:
 static int nfs_fsync_dir(struct file *filp, loff_t start, loff_t end,
 			 int datasync)
 {
-	struct dentry *dentry = filp->f_path.dentry;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = file_inode(filp);
 
-	dfprintk(FILE, "NFS: fsync dir(%s/%s) datasync %d\n",
-			dentry->d_parent->d_name.name, dentry->d_name.name,
-			datasync);
+	dfprintk(FILE, "NFS: fsync dir(%pD2) datasync %d\n", filp, datasync);
 
 	mutex_lock(&inode->i_mutex);
-	nfs_inc_stats(dentry->d_inode, NFSIOS_VFSFSYNC);
+	nfs_inc_stats(inode, NFSIOS_VFSFSYNC);
 	mutex_unlock(&inode->i_mutex);
 	return 0;
 }
@@ -1073,9 +1061,8 @@ static int nfs_lookup_revalidate(struct dentry *dentry, unsigned int flags)
 	}
 
 	if (is_bad_inode(inode)) {
-		dfprintk(LOOKUPCACHE, "%s: %s/%s has dud inode\n",
-				__func__, dentry->d_parent->d_name.name,
-				dentry->d_name.name);
+		dfprintk(LOOKUPCACHE, "%s: %pd2 has dud inode\n",
+				__func__, dentry);
 		goto out_bad;
 	}
 
@@ -1125,9 +1112,8 @@ out_set_verifier:
 	nfs_advise_use_readdirplus(dir);
  out_valid_noent:
 	dput(parent);
-	dfprintk(LOOKUPCACHE, "NFS: %s(%s/%s) is valid\n",
-			__func__, dentry->d_parent->d_name.name,
-			dentry->d_name.name);
+	dfprintk(LOOKUPCACHE, "NFS: %s(%pd2) is valid\n",
+			__func__, dentry);
 	return 1;
 out_zap_parent:
 	nfs_zap_caches(dir);
@@ -1147,18 +1133,16 @@ out_zap_parent:
 		goto out_valid;
 
 	dput(parent);
-	dfprintk(LOOKUPCACHE, "NFS: %s(%s/%s) is invalid\n",
-			__func__, dentry->d_parent->d_name.name,
-			dentry->d_name.name);
+	dfprintk(LOOKUPCACHE, "NFS: %s(%pd2) is invalid\n",
+			__func__, dentry);
 	return 0;
 out_error:
 	nfs_free_fattr(fattr);
 	nfs_free_fhandle(fhandle);
 	nfs4_label_free(label);
 	dput(parent);
-	dfprintk(LOOKUPCACHE, "NFS: %s(%s/%s) lookup returned error %d\n",
-			__func__, dentry->d_parent->d_name.name,
-			dentry->d_name.name, error);
+	dfprintk(LOOKUPCACHE, "NFS: %s(%pd2) lookup returned error %d\n",
+			__func__, dentry, error);
 	return error;
 }
 
@@ -1182,16 +1166,14 @@ static int nfs_weak_revalidate(struct dentry *dentry, unsigned int flags)
 	 * eventually need to do something more here.
 	 */
 	if (!inode) {
-		dfprintk(LOOKUPCACHE, "%s: %s/%s has negative inode\n",
-				__func__, dentry->d_parent->d_name.name,
-				dentry->d_name.name);
+		dfprintk(LOOKUPCACHE, "%s: %pd2 has negative inode\n",
+				__func__, dentry);
 		return 1;
 	}
 
 	if (is_bad_inode(inode)) {
-		dfprintk(LOOKUPCACHE, "%s: %s/%s has dud inode\n",
-				__func__, dentry->d_parent->d_name.name,
-				dentry->d_name.name);
+		dfprintk(LOOKUPCACHE, "%s: %pd2 has dud inode\n",
+				__func__, dentry);
 		return 0;
 	}
 
@@ -1206,9 +1188,8 @@ static int nfs_weak_revalidate(struct dentry *dentry, unsigned int flags)
  */
 static int nfs_dentry_delete(const struct dentry *dentry)
 {
-	dfprintk(VFS, "NFS: dentry_delete(%s/%s, %x)\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name,
-		dentry->d_flags);
+	dfprintk(VFS, "NFS: dentry_delete(%pd2, %x)\n",
+		dentry, dentry->d_flags);
 
 	/* Unhash any dentry with a stale inode */
 	if (dentry->d_inode != NULL && NFS_STALE(dentry->d_inode))
@@ -1286,8 +1267,7 @@ struct dentry *nfs_lookup(struct inode *dir, struct dentry * dentry, unsigned in
 	struct nfs4_label *label = NULL;
 	int error;
 
-	dfprintk(VFS, "NFS: lookup(%s/%s)\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name);
+	dfprintk(VFS, "NFS: lookup(%pd2)\n", dentry);
 	nfs_inc_stats(dir, NFSIOS_VFSLOOKUP);
 
 	res = ERR_PTR(-ENAMETOOLONG);
@@ -1418,8 +1398,8 @@ int nfs_atomic_open(struct inode *dir, struct dentry *dentry,
 	/* Expect a negative dentry */
 	BUG_ON(dentry->d_inode);
 
-	dfprintk(VFS, "NFS: atomic_open(%s/%ld), %s\n",
-			dir->i_sb->s_id, dir->i_ino, dentry->d_name.name);
+	dfprintk(VFS, "NFS: atomic_open(%s/%ld), %pd\n",
+			dir->i_sb->s_id, dir->i_ino, dentry);
 
 	err = nfs_check_flags(open_flags);
 	if (err)
@@ -1608,8 +1588,8 @@ int nfs_create(struct inode *dir, struct dentry *dentry,
 	int open_flags = excl ? O_CREAT | O_EXCL : O_CREAT;
 	int error;
 
-	dfprintk(VFS, "NFS: create(%s/%ld), %s\n",
-			dir->i_sb->s_id, dir->i_ino, dentry->d_name.name);
+	dfprintk(VFS, "NFS: create(%s/%ld), %pd\n",
+			dir->i_sb->s_id, dir->i_ino, dentry);
 
 	attr.ia_mode = mode;
 	attr.ia_valid = ATTR_MODE;
@@ -1635,8 +1615,8 @@ nfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t rdev)
 	struct iattr attr;
 	int status;
 
-	dfprintk(VFS, "NFS: mknod(%s/%ld), %s\n",
-			dir->i_sb->s_id, dir->i_ino, dentry->d_name.name);
+	dfprintk(VFS, "NFS: mknod(%s/%ld), %pd\n",
+			dir->i_sb->s_id, dir->i_ino, dentry);
 
 	if (!new_valid_dev(rdev))
 		return -EINVAL;
@@ -1664,8 +1644,8 @@ int nfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 	struct iattr attr;
 	int error;
 
-	dfprintk(VFS, "NFS: mkdir(%s/%ld), %s\n",
-			dir->i_sb->s_id, dir->i_ino, dentry->d_name.name);
+	dfprintk(VFS, "NFS: mkdir(%s/%ld), %pd\n",
+			dir->i_sb->s_id, dir->i_ino, dentry);
 
 	attr.ia_valid = ATTR_MODE;
 	attr.ia_mode = mode | S_IFDIR;
@@ -1692,8 +1672,8 @@ int nfs_rmdir(struct inode *dir, struct dentry *dentry)
 {
 	int error;
 
-	dfprintk(VFS, "NFS: rmdir(%s/%ld), %s\n",
-			dir->i_sb->s_id, dir->i_ino, dentry->d_name.name);
+	dfprintk(VFS, "NFS: rmdir(%s/%ld), %pd\n",
+			dir->i_sb->s_id, dir->i_ino, dentry);
 
 	trace_nfs_rmdir_enter(dir, dentry);
 	if (dentry->d_inode) {
@@ -1728,8 +1708,7 @@ static int nfs_safe_remove(struct dentry *dentry)
 	struct inode *inode = dentry->d_inode;
 	int error = -EBUSY;
 		
-	dfprintk(VFS, "NFS: safe_remove(%s/%s)\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name);
+	dfprintk(VFS, "NFS: safe_remove(%pd2)\n", dentry);
 
 	/* If the dentry was sillyrenamed, we simply call d_delete() */
 	if (dentry->d_flags & DCACHE_NFSFS_RENAMED) {
@@ -1762,8 +1741,8 @@ int nfs_unlink(struct inode *dir, struct dentry *dentry)
 	int error;
 	int need_rehash = 0;
 
-	dfprintk(VFS, "NFS: unlink(%s/%ld, %s)\n", dir->i_sb->s_id,
-		dir->i_ino, dentry->d_name.name);
+	dfprintk(VFS, "NFS: unlink(%s/%ld, %pd)\n", dir->i_sb->s_id,
+		dir->i_ino, dentry);
 
 	trace_nfs_unlink_enter(dir, dentry);
 	spin_lock(&dentry->d_lock);
@@ -1813,8 +1792,8 @@ int nfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
 	unsigned int pathlen = strlen(symname);
 	int error;
 
-	dfprintk(VFS, "NFS: symlink(%s/%ld, %s, %s)\n", dir->i_sb->s_id,
-		dir->i_ino, dentry->d_name.name, symname);
+	dfprintk(VFS, "NFS: symlink(%s/%ld, %pd, %s)\n", dir->i_sb->s_id,
+		dir->i_ino, dentry, symname);
 
 	if (pathlen > PAGE_SIZE)
 		return -ENAMETOOLONG;
@@ -1836,9 +1815,9 @@ int nfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
 	error = NFS_PROTO(dir)->symlink(dir, dentry, page, pathlen, &attr);
 	trace_nfs_symlink_exit(dir, dentry, error);
 	if (error != 0) {
-		dfprintk(VFS, "NFS: symlink(%s/%ld, %s, %s) error %d\n",
+		dfprintk(VFS, "NFS: symlink(%s/%ld, %pd, %s) error %d\n",
 			dir->i_sb->s_id, dir->i_ino,
-			dentry->d_name.name, symname, error);
+			dentry, symname, error);
 		d_drop(dentry);
 		__free_page(page);
 		return error;
@@ -1865,9 +1844,8 @@ nfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *dentry)
 	struct inode *inode = old_dentry->d_inode;
 	int error;
 
-	dfprintk(VFS, "NFS: link(%s/%s -> %s/%s)\n",
-		old_dentry->d_parent->d_name.name, old_dentry->d_name.name,
-		dentry->d_parent->d_name.name, dentry->d_name.name);
+	dfprintk(VFS, "NFS: link(%pd2 -> %pd2)\n",
+		old_dentry, dentry);
 
 	trace_nfs_link_enter(inode, dir, dentry);
 	NFS_PROTO(inode)->return_delegation(inode);
@@ -1915,9 +1893,8 @@ int nfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	struct dentry *dentry = NULL, *rehash = NULL;
 	int error = -EBUSY;
 
-	dfprintk(VFS, "NFS: rename(%s/%s -> %s/%s, ct=%d)\n",
-		 old_dentry->d_parent->d_name.name, old_dentry->d_name.name,
-		 new_dentry->d_parent->d_name.name, new_dentry->d_name.name,
+	dfprintk(VFS, "NFS: rename(%pd2 -> %pd2, ct=%d)\n",
+		 old_dentry, new_dentry,
 		 d_count(new_dentry));
 
 	trace_nfs_rename_enter(old_dir, old_dentry, new_dir, new_dentry);
diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c
index 91ff089d3412..d71d66c9e0a1 100644
--- a/fs/nfs/direct.c
+++ b/fs/nfs/direct.c
@@ -124,9 +124,8 @@ static inline int put_dreq(struct nfs_direct_req *dreq)
 ssize_t nfs_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov, loff_t pos, unsigned long nr_segs)
 {
 #ifndef CONFIG_NFS_SWAP
-	dprintk("NFS: nfs_direct_IO (%s) off/no(%Ld/%lu) EINVAL\n",
-			iocb->ki_filp->f_path.dentry->d_name.name,
-			(long long) pos, nr_segs);
+	dprintk("NFS: nfs_direct_IO (%pD) off/no(%Ld/%lu) EINVAL\n",
+			iocb->ki_filp, (long long) pos, nr_segs);
 
 	return -EINVAL;
 #else
@@ -909,10 +908,8 @@ ssize_t nfs_file_direct_read(struct kiocb *iocb, const struct iovec *iov,
 	count = iov_length(iov, nr_segs);
 	nfs_add_stats(mapping->host, NFSIOS_DIRECTREADBYTES, count);
 
-	dfprintk(FILE, "NFS: direct read(%s/%s, %zd@%Ld)\n",
-		file->f_path.dentry->d_parent->d_name.name,
-		file->f_path.dentry->d_name.name,
-		count, (long long) pos);
+	dfprintk(FILE, "NFS: direct read(%pD2, %zd@%Ld)\n",
+		file, count, (long long) pos);
 
 	retval = 0;
 	if (!count)
@@ -965,10 +962,8 @@ ssize_t nfs_file_direct_write(struct kiocb *iocb, const struct iovec *iov,
 	count = iov_length(iov, nr_segs);
 	nfs_add_stats(mapping->host, NFSIOS_DIRECTWRITTENBYTES, count);
 
-	dfprintk(FILE, "NFS: direct write(%s/%s, %zd@%Ld)\n",
-		file->f_path.dentry->d_parent->d_name.name,
-		file->f_path.dentry->d_name.name,
-		count, (long long) pos);
+	dfprintk(FILE, "NFS: direct write(%pD2, %zd@%Ld)\n",
+		file, count, (long long) pos);
 
 	retval = generic_write_checks(file, &pos, &count, 0);
 	if (retval)
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 1e6bfdbc1aff..e2fcacf07de3 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -65,9 +65,7 @@ nfs_file_open(struct inode *inode, struct file *filp)
 {
 	int res;
 
-	dprintk("NFS: open file(%s/%s)\n",
-			filp->f_path.dentry->d_parent->d_name.name,
-			filp->f_path.dentry->d_name.name);
+	dprintk("NFS: open file(%pD2)\n", filp);
 
 	nfs_inc_stats(inode, NFSIOS_VFSOPEN);
 	res = nfs_check_flags(filp->f_flags);
@@ -81,9 +79,7 @@ nfs_file_open(struct inode *inode, struct file *filp)
 int
 nfs_file_release(struct inode *inode, struct file *filp)
 {
-	dprintk("NFS: release(%s/%s)\n",
-			filp->f_path.dentry->d_parent->d_name.name,
-			filp->f_path.dentry->d_name.name);
+	dprintk("NFS: release(%pD2)\n", filp);
 
 	nfs_inc_stats(inode, NFSIOS_VFSRELEASE);
 	return nfs_release(inode, filp);
@@ -123,10 +119,8 @@ force_reval:
 
 loff_t nfs_file_llseek(struct file *filp, loff_t offset, int whence)
 {
-	dprintk("NFS: llseek file(%s/%s, %lld, %d)\n",
-			filp->f_path.dentry->d_parent->d_name.name,
-			filp->f_path.dentry->d_name.name,
-			offset, whence);
+	dprintk("NFS: llseek file(%pD2, %lld, %d)\n",
+			filp, offset, whence);
 
 	/*
 	 * whence == SEEK_END || SEEK_DATA || SEEK_HOLE => we must revalidate
@@ -150,12 +144,9 @@ EXPORT_SYMBOL_GPL(nfs_file_llseek);
 int
 nfs_file_flush(struct file *file, fl_owner_t id)
 {
-	struct dentry	*dentry = file->f_path.dentry;
-	struct inode	*inode = dentry->d_inode;
+	struct inode	*inode = file_inode(file);
 
-	dprintk("NFS: flush(%s/%s)\n",
-			dentry->d_parent->d_name.name,
-			dentry->d_name.name);
+	dprintk("NFS: flush(%pD2)\n", file);
 
 	nfs_inc_stats(inode, NFSIOS_VFSFLUSH);
 	if ((file->f_mode & FMODE_WRITE) == 0)
@@ -177,15 +168,14 @@ ssize_t
 nfs_file_read(struct kiocb *iocb, const struct iovec *iov,
 		unsigned long nr_segs, loff_t pos)
 {
-	struct dentry * dentry = iocb->ki_filp->f_path.dentry;
-	struct inode * inode = dentry->d_inode;
+	struct inode *inode = file_inode(iocb->ki_filp);
 	ssize_t result;
 
 	if (iocb->ki_filp->f_flags & O_DIRECT)
 		return nfs_file_direct_read(iocb, iov, nr_segs, pos, true);
 
-	dprintk("NFS: read(%s/%s, %lu@%lu)\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name,
+	dprintk("NFS: read(%pD2, %lu@%lu)\n",
+		iocb->ki_filp,
 		(unsigned long) iov_length(iov, nr_segs), (unsigned long) pos);
 
 	result = nfs_revalidate_mapping(inode, iocb->ki_filp->f_mapping);
@@ -203,13 +193,11 @@ nfs_file_splice_read(struct file *filp, loff_t *ppos,
 		     struct pipe_inode_info *pipe, size_t count,
 		     unsigned int flags)
 {
-	struct dentry *dentry = filp->f_path.dentry;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = file_inode(filp);
 	ssize_t res;
 
-	dprintk("NFS: splice_read(%s/%s, %lu@%Lu)\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name,
-		(unsigned long) count, (unsigned long long) *ppos);
+	dprintk("NFS: splice_read(%pD2, %lu@%Lu)\n",
+		filp, (unsigned long) count, (unsigned long long) *ppos);
 
 	res = nfs_revalidate_mapping(inode, filp->f_mapping);
 	if (!res) {
@@ -224,12 +212,10 @@ EXPORT_SYMBOL_GPL(nfs_file_splice_read);
 int
 nfs_file_mmap(struct file * file, struct vm_area_struct * vma)
 {
-	struct dentry *dentry = file->f_path.dentry;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = file_inode(file);
 	int	status;
 
-	dprintk("NFS: mmap(%s/%s)\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name);
+	dprintk("NFS: mmap(%pD2)\n", file);
 
 	/* Note: generic_file_mmap() returns ENOSYS on nommu systems
 	 *       so we call that before revalidating the mapping
@@ -258,15 +244,12 @@ EXPORT_SYMBOL_GPL(nfs_file_mmap);
 int
 nfs_file_fsync_commit(struct file *file, loff_t start, loff_t end, int datasync)
 {
-	struct dentry *dentry = file->f_path.dentry;
 	struct nfs_open_context *ctx = nfs_file_open_context(file);
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = file_inode(file);
 	int have_error, do_resend, status;
 	int ret = 0;
 
-	dprintk("NFS: fsync file(%s/%s) datasync %d\n",
-			dentry->d_parent->d_name.name, dentry->d_name.name,
-			datasync);
+	dprintk("NFS: fsync file(%pD2) datasync %d\n", file, datasync);
 
 	nfs_inc_stats(inode, NFSIOS_VFSFSYNC);
 	do_resend = test_and_clear_bit(NFS_CONTEXT_RESEND_WRITES, &ctx->flags);
@@ -371,10 +354,8 @@ static int nfs_write_begin(struct file *file, struct address_space *mapping,
 	struct page *page;
 	int once_thru = 0;
 
-	dfprintk(PAGECACHE, "NFS: write_begin(%s/%s(%ld), %u@%lld)\n",
-		file->f_path.dentry->d_parent->d_name.name,
-		file->f_path.dentry->d_name.name,
-		mapping->host->i_ino, len, (long long) pos);
+	dfprintk(PAGECACHE, "NFS: write_begin(%pD2(%ld), %u@%lld)\n",
+		file, mapping->host->i_ino, len, (long long) pos);
 
 start:
 	/*
@@ -414,10 +395,8 @@ static int nfs_write_end(struct file *file, struct address_space *mapping,
 	struct nfs_open_context *ctx = nfs_file_open_context(file);
 	int status;
 
-	dfprintk(PAGECACHE, "NFS: write_end(%s/%s(%ld), %u@%lld)\n",
-		file->f_path.dentry->d_parent->d_name.name,
-		file->f_path.dentry->d_name.name,
-		mapping->host->i_ino, len, (long long) pos);
+	dfprintk(PAGECACHE, "NFS: write_end(%pD2(%ld), %u@%lld)\n",
+		file, mapping->host->i_ino, len, (long long) pos);
 
 	/*
 	 * Zero any uninitialised parts of the page, and then mark the page
@@ -601,22 +580,21 @@ static int nfs_vm_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
 {
 	struct page *page = vmf->page;
 	struct file *filp = vma->vm_file;
-	struct dentry *dentry = filp->f_path.dentry;
+	struct inode *inode = file_inode(filp);
 	unsigned pagelen;
 	int ret = VM_FAULT_NOPAGE;
 	struct address_space *mapping;
 
-	dfprintk(PAGECACHE, "NFS: vm_page_mkwrite(%s/%s(%ld), offset %lld)\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name,
-		filp->f_mapping->host->i_ino,
+	dfprintk(PAGECACHE, "NFS: vm_page_mkwrite(%pD2(%ld), offset %lld)\n",
+		filp, filp->f_mapping->host->i_ino,
 		(long long)page_offset(page));
 
 	/* make sure the cache has finished storing the page */
-	nfs_fscache_wait_on_page_write(NFS_I(dentry->d_inode), page);
+	nfs_fscache_wait_on_page_write(NFS_I(inode), page);
 
 	lock_page(page);
 	mapping = page_file_mapping(page);
-	if (mapping != dentry->d_inode->i_mapping)
+	if (mapping != inode->i_mapping)
 		goto out_unlock;
 
 	wait_on_page_writeback(page);
@@ -659,22 +637,21 @@ static int nfs_need_sync_write(struct file *filp, struct inode *inode)
 ssize_t nfs_file_write(struct kiocb *iocb, const struct iovec *iov,
 		       unsigned long nr_segs, loff_t pos)
 {
-	struct dentry * dentry = iocb->ki_filp->f_path.dentry;
-	struct inode * inode = dentry->d_inode;
+	struct file *file = iocb->ki_filp;
+	struct inode *inode = file_inode(file);
 	unsigned long written = 0;
 	ssize_t result;
 	size_t count = iov_length(iov, nr_segs);
 
-	result = nfs_key_timeout_notify(iocb->ki_filp, inode);
+	result = nfs_key_timeout_notify(file, inode);
 	if (result)
 		return result;
 
-	if (iocb->ki_filp->f_flags & O_DIRECT)
+	if (file->f_flags & O_DIRECT)
 		return nfs_file_direct_write(iocb, iov, nr_segs, pos, true);
 
-	dprintk("NFS: write(%s/%s, %lu@%Ld)\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name,
-		(unsigned long) count, (long long) pos);
+	dprintk("NFS: write(%pD2, %lu@%Ld)\n",
+		file, (unsigned long) count, (long long) pos);
 
 	result = -EBUSY;
 	if (IS_SWAPFILE(inode))
@@ -682,8 +659,8 @@ ssize_t nfs_file_write(struct kiocb *iocb, const struct iovec *iov,
 	/*
 	 * O_APPEND implies that we must revalidate the file length.
 	 */
-	if (iocb->ki_filp->f_flags & O_APPEND) {
-		result = nfs_revalidate_file_size(inode, iocb->ki_filp);
+	if (file->f_flags & O_APPEND) {
+		result = nfs_revalidate_file_size(inode, file);
 		if (result)
 			goto out;
 	}
@@ -697,8 +674,8 @@ ssize_t nfs_file_write(struct kiocb *iocb, const struct iovec *iov,
 		written = result;
 
 	/* Return error values for O_DSYNC and IS_SYNC() */
-	if (result >= 0 && nfs_need_sync_write(iocb->ki_filp, inode)) {
-		int err = vfs_fsync(iocb->ki_filp, 0);
+	if (result >= 0 && nfs_need_sync_write(file, inode)) {
+		int err = vfs_fsync(file, 0);
 		if (err < 0)
 			result = err;
 	}
@@ -717,14 +694,12 @@ ssize_t nfs_file_splice_write(struct pipe_inode_info *pipe,
 			      struct file *filp, loff_t *ppos,
 			      size_t count, unsigned int flags)
 {
-	struct dentry *dentry = filp->f_path.dentry;
-	struct inode *inode = dentry->d_inode;
+	struct inode *inode = file_inode(filp);
 	unsigned long written = 0;
 	ssize_t ret;
 
-	dprintk("NFS splice_write(%s/%s, %lu@%llu)\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name,
-		(unsigned long) count, (unsigned long long) *ppos);
+	dprintk("NFS splice_write(%pD2, %lu@%llu)\n",
+		filp, (unsigned long) count, (unsigned long long) *ppos);
 
 	/*
 	 * The combination of splice and an O_APPEND destination is disallowed.
@@ -883,10 +858,8 @@ int nfs_lock(struct file *filp, int cmd, struct file_lock *fl)
 	int ret = -ENOLCK;
 	int is_local = 0;
 
-	dprintk("NFS: lock(%s/%s, t=%x, fl=%x, r=%lld:%lld)\n",
-			filp->f_path.dentry->d_parent->d_name.name,
-			filp->f_path.dentry->d_name.name,
-			fl->fl_type, fl->fl_flags,
+	dprintk("NFS: lock(%pD2, t=%x, fl=%x, r=%lld:%lld)\n",
+			filp, fl->fl_type, fl->fl_flags,
 			(long long)fl->fl_start, (long long)fl->fl_end);
 
 	nfs_inc_stats(inode, NFSIOS_VFSLOCK);
@@ -923,10 +896,8 @@ int nfs_flock(struct file *filp, int cmd, struct file_lock *fl)
 	struct inode *inode = filp->f_mapping->host;
 	int is_local = 0;
 
-	dprintk("NFS: flock(%s/%s, t=%x, fl=%x)\n",
-			filp->f_path.dentry->d_parent->d_name.name,
-			filp->f_path.dentry->d_name.name,
-			fl->fl_type, fl->fl_flags);
+	dprintk("NFS: flock(%pD2, t=%x, fl=%x)\n",
+			filp, fl->fl_type, fl->fl_flags);
 
 	if (!(fl->fl_flags & FL_FLOCK))
 		return -ENOLCK;
@@ -960,9 +931,7 @@ EXPORT_SYMBOL_GPL(nfs_flock);
  */
 int nfs_setlease(struct file *file, long arg, struct file_lock **fl)
 {
-	dprintk("NFS: setlease(%s/%s, arg=%ld)\n",
-			file->f_path.dentry->d_parent->d_name.name,
-			file->f_path.dentry->d_name.name, arg);
+	dprintk("NFS: setlease(%pD2, arg=%ld)\n", file, arg);
 	return -EINVAL;
 }
 EXPORT_SYMBOL_GPL(nfs_setlease);
diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c
index 348b535cd786..b5a0afc3ee10 100644
--- a/fs/nfs/namespace.c
+++ b/fs/nfs/namespace.c
@@ -253,9 +253,8 @@ struct vfsmount *nfs_do_submount(struct dentry *dentry, struct nfs_fh *fh,
 
 	dprintk("--> nfs_do_submount()\n");
 
-	dprintk("%s: submounting on %s/%s\n", __func__,
-			dentry->d_parent->d_name.name,
-			dentry->d_name.name);
+	dprintk("%s: submounting on %pd2\n", __func__,
+			dentry);
 	if (page == NULL)
 		goto out;
 	devname = nfs_devname(dentry, page, PAGE_SIZE);
diff --git a/fs/nfs/nfs3proc.c b/fs/nfs/nfs3proc.c
index 90cb10d7b693..01b6f6a49d16 100644
--- a/fs/nfs/nfs3proc.c
+++ b/fs/nfs/nfs3proc.c
@@ -321,7 +321,7 @@ nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
 	umode_t mode = sattr->ia_mode;
 	int status = -ENOMEM;
 
-	dprintk("NFS call  create %s\n", dentry->d_name.name);
+	dprintk("NFS call  create %pd\n", dentry);
 
 	data = nfs3_alloc_createdata();
 	if (data == NULL)
@@ -548,7 +548,7 @@ nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
 	if (len > NFS3_MAXPATHLEN)
 		return -ENAMETOOLONG;
 
-	dprintk("NFS call  symlink %s\n", dentry->d_name.name);
+	dprintk("NFS call  symlink %pd\n", dentry);
 
 	data = nfs3_alloc_createdata();
 	if (data == NULL)
@@ -576,7 +576,7 @@ nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
 	umode_t mode = sattr->ia_mode;
 	int status = -ENOMEM;
 
-	dprintk("NFS call  mkdir %s\n", dentry->d_name.name);
+	dprintk("NFS call  mkdir %pd\n", dentry);
 
 	sattr->ia_mode &= ~current_umask();
 
@@ -695,7 +695,7 @@ nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
 	umode_t mode = sattr->ia_mode;
 	int status = -ENOMEM;
 
-	dprintk("NFS call  mknod %s %u:%u\n", dentry->d_name.name,
+	dprintk("NFS call  mknod %pd %u:%u\n", dentry,
 			MAJOR(rdev), MINOR(rdev));
 
 	sattr->ia_mode &= ~current_umask();
diff --git a/fs/nfs/nfs4file.c b/fs/nfs/nfs4file.c
index 77efaf15ec90..9c8f09a2156f 100644
--- a/fs/nfs/nfs4file.c
+++ b/fs/nfs/nfs4file.c
@@ -31,9 +31,7 @@ nfs4_file_open(struct inode *inode, struct file *filp)
 	 * -EOPENSTALE.  The VFS will retry the lookup/create/open.
 	 */
 
-	dprintk("NFS: open file(%s/%s)\n",
-		dentry->d_parent->d_name.name,
-		dentry->d_name.name);
+	dprintk("NFS: open file(%pd2)\n", dentry);
 
 	if ((openflags & O_ACCMODE) == 3)
 		openflags--;
diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c
index 2288cd3c9278..049b9fb0d2c9 100644
--- a/fs/nfs/nfs4namespace.c
+++ b/fs/nfs/nfs4namespace.c
@@ -283,8 +283,7 @@ static struct vfsmount *nfs_follow_referral(struct dentry *dentry,
 	if (locations == NULL || locations->nlocations <= 0)
 		goto out;
 
-	dprintk("%s: referral at %s/%s\n", __func__,
-		dentry->d_parent->d_name.name, dentry->d_name.name);
+	dprintk("%s: referral at %pd2\n", __func__, dentry);
 
 	page = (char *) __get_free_page(GFP_USER);
 	if (!page)
@@ -348,8 +347,8 @@ static struct vfsmount *nfs_do_refmount(struct rpc_clnt *client, struct dentry *
 	mnt = ERR_PTR(-ENOENT);
 
 	parent = dget_parent(dentry);
-	dprintk("%s: getting locations for %s/%s\n",
-		__func__, parent->d_name.name, dentry->d_name.name);
+	dprintk("%s: getting locations for %pd2\n",
+		__func__, dentry);
 
 	err = nfs4_proc_fs_locations(client, parent->d_inode, &dentry->d_name, fs_locations, page);
 	dput(parent);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index d53d6785cba2..75e46bbf7f41 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -3738,9 +3738,8 @@ static int _nfs4_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
 	};
 	int			status;
 
-	dprintk("%s: dentry = %s/%s, cookie = %Lu\n", __func__,
-			dentry->d_parent->d_name.name,
-			dentry->d_name.name,
+	dprintk("%s: dentry = %pd2, cookie = %Lu\n", __func__,
+			dentry,
 			(unsigned long long)cookie);
 	nfs4_setup_readdir(cookie, NFS_I(dir)->cookieverf, dentry, &args);
 	res.pgbase = args.pgbase;
diff --git a/fs/nfs/proc.c b/fs/nfs/proc.c
index a8f57c728df5..fddbba2d9eff 100644
--- a/fs/nfs/proc.c
+++ b/fs/nfs/proc.c
@@ -235,7 +235,7 @@ nfs_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
 	};
 	int status = -ENOMEM;
 
-	dprintk("NFS call  create %s\n", dentry->d_name.name);
+	dprintk("NFS call  create %pd\n", dentry);
 	data = nfs_alloc_createdata(dir, dentry, sattr);
 	if (data == NULL)
 		goto out;
@@ -265,7 +265,7 @@ nfs_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
 	umode_t mode;
 	int status = -ENOMEM;
 
-	dprintk("NFS call  mknod %s\n", dentry->d_name.name);
+	dprintk("NFS call  mknod %pd\n", dentry);
 
 	mode = sattr->ia_mode;
 	if (S_ISFIFO(mode)) {
@@ -423,7 +423,7 @@ nfs_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
 	};
 	int status = -ENAMETOOLONG;
 
-	dprintk("NFS call  symlink %s\n", dentry->d_name.name);
+	dprintk("NFS call  symlink %pd\n", dentry);
 
 	if (len > NFS2_MAXPATHLEN)
 		goto out;
@@ -462,7 +462,7 @@ nfs_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
 	};
 	int status = -ENOMEM;
 
-	dprintk("NFS call  mkdir %s\n", dentry->d_name.name);
+	dprintk("NFS call  mkdir %pd\n", dentry);
 	data = nfs_alloc_createdata(dir, dentry, sattr);
 	if (data == NULL)
 		goto out;
diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c
index bb939edd4c99..8285de9eaad2 100644
--- a/fs/nfs/unlink.c
+++ b/fs/nfs/unlink.c
@@ -495,9 +495,8 @@ nfs_sillyrename(struct inode *dir, struct dentry *dentry)
 	struct rpc_task *task;
 	int            error = -EIO;
 
-	dfprintk(VFS, "NFS: silly-rename(%s/%s, ct=%d)\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name,
-		d_count(dentry));
+	dfprintk(VFS, "NFS: silly-rename(%pd2, ct=%d)\n",
+		dentry, d_count(dentry));
 	nfs_inc_stats(dir, NFSIOS_SILLYRENAME);
 
 	/*
@@ -522,8 +521,8 @@ nfs_sillyrename(struct inode *dir, struct dentry *dentry)
 				SILLYNAME_FILEID_LEN, fileid,
 				SILLYNAME_COUNTER_LEN, sillycounter);
 
-		dfprintk(VFS, "NFS: trying to rename %s to %s\n",
-				dentry->d_name.name, silly);
+		dfprintk(VFS, "NFS: trying to rename %pd to %s\n",
+				dentry, silly);
 
 		sdentry = lookup_one_len(silly, dentry->d_parent, slen);
 		/*
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index ac1dc331ba31..c1d548211c31 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -954,10 +954,8 @@ int nfs_updatepage(struct file *file, struct page *page,
 
 	nfs_inc_stats(inode, NFSIOS_VFSUPDATEPAGE);
 
-	dprintk("NFS:       nfs_updatepage(%s/%s %d@%lld)\n",
-		file->f_path.dentry->d_parent->d_name.name,
-		file->f_path.dentry->d_name.name, count,
-		(long long)(page_file_offset(page) + offset));
+	dprintk("NFS:       nfs_updatepage(%pD2 %d@%lld)\n",
+		file, count, (long long)(page_file_offset(page) + offset));
 
 	if (nfs_can_extend_write(file, page, inode)) {
 		count = max(count + offset, nfs_page_length(page));
-- 
cgit 


From a6a9f18f0a9f943ada095753bdc4346aee67b1aa Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 16 Sep 2013 10:57:01 -0400
Subject: nfsd: switch to %p[dD]

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/nfsd/nfs4recover.c | 12 ++++++------
 fs/nfsd/nfs4state.c   | 15 ++++++---------
 fs/nfsd/nfsfh.c       | 28 +++++++++++++---------------
 fs/nfsd/nfsfh.h       |  4 ++--
 fs/nfsd/vfs.c         |  9 ++++-----
 5 files changed, 31 insertions(+), 37 deletions(-)

diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
index e0a65a9e37e9..9c271f42604a 100644
--- a/fs/nfsd/nfs4recover.c
+++ b/fs/nfsd/nfs4recover.c
@@ -385,8 +385,8 @@ purge_old(struct dentry *parent, struct dentry *child, struct nfsd_net *nn)
 
 	status = vfs_rmdir(parent->d_inode, child);
 	if (status)
-		printk("failed to remove client recovery directory %s\n",
-				child->d_name.name);
+		printk("failed to remove client recovery directory %pd\n",
+				child);
 	/* Keep trying, success or failure: */
 	return 0;
 }
@@ -410,15 +410,15 @@ out:
 	nfs4_release_reclaim(nn);
 	if (status)
 		printk("nfsd4: failed to purge old clients from recovery"
-			" directory %s\n", nn->rec_file->f_path.dentry->d_name.name);
+			" directory %pD\n", nn->rec_file);
 }
 
 static int
 load_recdir(struct dentry *parent, struct dentry *child, struct nfsd_net *nn)
 {
 	if (child->d_name.len != HEXDIR_LEN - 1) {
-		printk("nfsd4: illegal name %s in recovery directory\n",
-				child->d_name.name);
+		printk("nfsd4: illegal name %pd in recovery directory\n",
+				child);
 		/* Keep trying; maybe the others are OK: */
 		return 0;
 	}
@@ -437,7 +437,7 @@ nfsd4_recdir_load(struct net *net) {
 	status = nfsd4_list_rec_dir(load_recdir, nn);
 	if (status)
 		printk("nfsd4: failed loading clients from recovery"
-			" directory %s\n", nn->rec_file->f_path.dentry->d_name.name);
+			" directory %pD\n", nn->rec_file);
 	return status;
 }
 
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 0874998a49cd..a601fd49f997 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3843,9 +3843,8 @@ nfsd4_open_confirm(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 	struct nfs4_ol_stateid *stp;
 	struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
 
-	dprintk("NFSD: nfsd4_open_confirm on file %.*s\n",
-			(int)cstate->current_fh.fh_dentry->d_name.len,
-			cstate->current_fh.fh_dentry->d_name.name);
+	dprintk("NFSD: nfsd4_open_confirm on file %pd\n",
+			cstate->current_fh.fh_dentry);
 
 	status = fh_verify(rqstp, &cstate->current_fh, S_IFREG, 0);
 	if (status)
@@ -3922,9 +3921,8 @@ nfsd4_open_downgrade(struct svc_rqst *rqstp,
 	struct nfs4_ol_stateid *stp;
 	struct nfsd_net *nn = net_generic(SVC_NET(rqstp), nfsd_net_id);
 
-	dprintk("NFSD: nfsd4_open_downgrade on file %.*s\n", 
-			(int)cstate->current_fh.fh_dentry->d_name.len,
-			cstate->current_fh.fh_dentry->d_name.name);
+	dprintk("NFSD: nfsd4_open_downgrade on file %pd\n", 
+			cstate->current_fh.fh_dentry);
 
 	/* We don't yet support WANT bits: */
 	if (od->od_deleg_want)
@@ -3980,9 +3978,8 @@ nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 	struct net *net = SVC_NET(rqstp);
 	struct nfsd_net *nn = net_generic(net, nfsd_net_id);
 
-	dprintk("NFSD: nfsd4_close on file %.*s\n", 
-			(int)cstate->current_fh.fh_dentry->d_name.len,
-			cstate->current_fh.fh_dentry->d_name.name);
+	dprintk("NFSD: nfsd4_close on file %pd\n", 
+			cstate->current_fh.fh_dentry);
 
 	nfs4_lock_state();
 	status = nfs4_preprocess_seqid_op(cstate, close->cl_seqid,
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index 814afaa4458a..3d0e15ae6f72 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -47,7 +47,7 @@ static int nfsd_acceptable(void *expv, struct dentry *dentry)
 		tdentry = parent;
 	}
 	if (tdentry != exp->ex_path.dentry)
-		dprintk("nfsd_acceptable failed at %p %s\n", tdentry, tdentry->d_name.name);
+		dprintk("nfsd_acceptable failed at %p %pd\n", tdentry, tdentry);
 	rv = (tdentry == exp->ex_path.dentry);
 	dput(tdentry);
 	return rv;
@@ -253,8 +253,8 @@ static __be32 nfsd_set_fh_dentry(struct svc_rqst *rqstp, struct svc_fh *fhp)
 
 	if (S_ISDIR(dentry->d_inode->i_mode) &&
 			(dentry->d_flags & DCACHE_DISCONNECTED)) {
-		printk("nfsd: find_fh_dentry returned a DISCONNECTED directory: %s/%s\n",
-				dentry->d_parent->d_name.name, dentry->d_name.name);
+		printk("nfsd: find_fh_dentry returned a DISCONNECTED directory: %pd2\n",
+				dentry);
 	}
 
 	fhp->fh_dentry = dentry;
@@ -361,10 +361,9 @@ skip_pseudoflavor_check:
 	error = nfsd_permission(rqstp, exp, dentry, access);
 
 	if (error) {
-		dprintk("fh_verify: %s/%s permission failure, "
+		dprintk("fh_verify: %pd2 permission failure, "
 			"acc=%x, error=%d\n",
-			dentry->d_parent->d_name.name,
-			dentry->d_name.name,
+			dentry,
 			access, ntohl(error));
 	}
 out:
@@ -514,14 +513,13 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry,
 	 */
 
 	struct inode * inode = dentry->d_inode;
-	struct dentry *parent = dentry->d_parent;
 	__u32 *datap;
 	dev_t ex_dev = exp_sb(exp)->s_dev;
 
-	dprintk("nfsd: fh_compose(exp %02x:%02x/%ld %s/%s, ino=%ld)\n",
+	dprintk("nfsd: fh_compose(exp %02x:%02x/%ld %pd2, ino=%ld)\n",
 		MAJOR(ex_dev), MINOR(ex_dev),
 		(long) exp->ex_path.dentry->d_inode->i_ino,
-		parent->d_name.name, dentry->d_name.name,
+		dentry,
 		(inode ? inode->i_ino : 0));
 
 	/* Choose filehandle version and fsid type based on
@@ -534,13 +532,13 @@ fh_compose(struct svc_fh *fhp, struct svc_export *exp, struct dentry *dentry,
 		fh_put(ref_fh);
 
 	if (fhp->fh_locked || fhp->fh_dentry) {
-		printk(KERN_ERR "fh_compose: fh %s/%s not initialized!\n",
-		       parent->d_name.name, dentry->d_name.name);
+		printk(KERN_ERR "fh_compose: fh %pd2 not initialized!\n",
+		       dentry);
 	}
 	if (fhp->fh_maxsize < NFS_FHSIZE)
-		printk(KERN_ERR "fh_compose: called with maxsize %d! %s/%s\n",
+		printk(KERN_ERR "fh_compose: called with maxsize %d! %pd2\n",
 		       fhp->fh_maxsize,
-		       parent->d_name.name, dentry->d_name.name);
+		       dentry);
 
 	fhp->fh_dentry = dget(dentry); /* our internal copy */
 	fhp->fh_export = exp;
@@ -613,8 +611,8 @@ out_bad:
 	printk(KERN_ERR "fh_update: fh not verified!\n");
 	goto out;
 out_negative:
-	printk(KERN_ERR "fh_update: %s/%s still negative!\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name);
+	printk(KERN_ERR "fh_update: %pd2 still negative!\n",
+		dentry);
 	goto out;
 }
 
diff --git a/fs/nfsd/nfsfh.h b/fs/nfsd/nfsfh.h
index e5e6707ba687..4775bc4896c8 100644
--- a/fs/nfsd/nfsfh.h
+++ b/fs/nfsd/nfsfh.h
@@ -173,8 +173,8 @@ fh_lock_nested(struct svc_fh *fhp, unsigned int subclass)
 	BUG_ON(!dentry);
 
 	if (fhp->fh_locked) {
-		printk(KERN_WARNING "fh_lock: %s/%s already locked!\n",
-			dentry->d_parent->d_name.name, dentry->d_name.name);
+		printk(KERN_WARNING "fh_lock: %pd2 already locked!\n",
+			dentry);
 		return;
 	}
 
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index c827acb0e943..13886f7f40d5 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1317,9 +1317,8 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
 		if (!fhp->fh_locked) {
 			/* not actually possible */
 			printk(KERN_ERR
-				"nfsd_create: parent %s/%s not locked!\n",
-				dentry->d_parent->d_name.name,
-				dentry->d_name.name);
+				"nfsd_create: parent %pd2 not locked!\n",
+				dentry);
 			err = nfserr_io;
 			goto out;
 		}
@@ -1329,8 +1328,8 @@ nfsd_create(struct svc_rqst *rqstp, struct svc_fh *fhp,
 	 */
 	err = nfserr_exist;
 	if (dchild->d_inode) {
-		dprintk("nfsd_create: dentry %s/%s not negative!\n",
-			dentry->d_name.name, dchild->d_name.name);
+		dprintk("nfsd_create: dentry %pd/%pd not negative!\n",
+			dentry, dchild);
 		goto out; 
 	}
 
-- 
cgit 


From 1e903edadf3981ac22bba5587fa18d91908f066f Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 16 Sep 2013 10:57:41 -0400
Subject: sunrpc: switch to %pd

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 net/sunrpc/rpc_pipe.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index f94567b45bb3..d0d14a04dce1 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -519,8 +519,8 @@ static int __rpc_create_common(struct inode *dir, struct dentry *dentry,
 	d_add(dentry, inode);
 	return 0;
 out_err:
-	printk(KERN_WARNING "%s: %s failed to allocate inode for dentry %s\n",
-			__FILE__, __func__, dentry->d_name.name);
+	printk(KERN_WARNING "%s: %s failed to allocate inode for dentry %pd\n",
+			__FILE__, __func__, dentry);
 	dput(dentry);
 	return -ENOMEM;
 }
@@ -755,8 +755,8 @@ static int rpc_populate(struct dentry *parent,
 out_bad:
 	__rpc_depopulate(parent, files, start, eof);
 	mutex_unlock(&dir->i_mutex);
-	printk(KERN_WARNING "%s: %s failed to populate directory %s\n",
-			__FILE__, __func__, parent->d_name.name);
+	printk(KERN_WARNING "%s: %s failed to populate directory %pd\n",
+			__FILE__, __func__, parent);
 	return err;
 }
 
@@ -852,8 +852,8 @@ out:
 	return dentry;
 out_err:
 	dentry = ERR_PTR(err);
-	printk(KERN_WARNING "%s: %s() failed to create pipe %s/%s (errno = %d)\n",
-			__FILE__, __func__, parent->d_name.name, name,
+	printk(KERN_WARNING "%s: %s() failed to create pipe %pd/%s (errno = %d)\n",
+			__FILE__, __func__, parent, name,
 			err);
 	goto out;
 }
-- 
cgit 


From 4cb2a01d8c4bd18a0bb292f32e9876b0c4461e12 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 16 Sep 2013 10:58:53 -0400
Subject: ubifs: switch to %pd

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/ubifs/dir.c     | 41 +++++++++++++++++++----------------------
 fs/ubifs/journal.c |  6 ++----
 fs/ubifs/xattr.c   | 16 ++++++++--------
 3 files changed, 29 insertions(+), 34 deletions(-)

diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index 6b4947f75af7..ea41649e4ca5 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -192,8 +192,7 @@ static struct dentry *ubifs_lookup(struct inode *dir, struct dentry *dentry,
 	struct ubifs_dent_node *dent;
 	struct ubifs_info *c = dir->i_sb->s_fs_info;
 
-	dbg_gen("'%.*s' in dir ino %lu",
-		dentry->d_name.len, dentry->d_name.name, dir->i_ino);
+	dbg_gen("'%pd' in dir ino %lu", dentry, dir->i_ino);
 
 	if (dentry->d_name.len > UBIFS_MAX_NLEN)
 		return ERR_PTR(-ENAMETOOLONG);
@@ -225,8 +224,8 @@ static struct dentry *ubifs_lookup(struct inode *dir, struct dentry *dentry,
 		 * checking.
 		 */
 		err = PTR_ERR(inode);
-		ubifs_err("dead directory entry '%.*s', error %d",
-			  dentry->d_name.len, dentry->d_name.name, err);
+		ubifs_err("dead directory entry '%pd', error %d",
+			  dentry, err);
 		ubifs_ro_mode(c, err);
 		goto out;
 	}
@@ -260,8 +259,8 @@ static int ubifs_create(struct inode *dir, struct dentry *dentry, umode_t mode,
 	 * parent directory inode.
 	 */
 
-	dbg_gen("dent '%.*s', mode %#hx in dir ino %lu",
-		dentry->d_name.len, dentry->d_name.name, mode, dir->i_ino);
+	dbg_gen("dent '%pd', mode %#hx in dir ino %lu",
+		dentry, mode, dir->i_ino);
 
 	err = ubifs_budget_space(c, &req);
 	if (err)
@@ -509,8 +508,8 @@ static int ubifs_link(struct dentry *old_dentry, struct inode *dir,
 	 * changing the parent inode.
 	 */
 
-	dbg_gen("dent '%.*s' to ino %lu (nlink %d) in dir ino %lu",
-		dentry->d_name.len, dentry->d_name.name, inode->i_ino,
+	dbg_gen("dent '%pd' to ino %lu (nlink %d) in dir ino %lu",
+		dentry, inode->i_ino,
 		inode->i_nlink, dir->i_ino);
 	ubifs_assert(mutex_is_locked(&dir->i_mutex));
 	ubifs_assert(mutex_is_locked(&inode->i_mutex));
@@ -566,8 +565,8 @@ static int ubifs_unlink(struct inode *dir, struct dentry *dentry)
 	 * deletions.
 	 */
 
-	dbg_gen("dent '%.*s' from ino %lu (nlink %d) in dir ino %lu",
-		dentry->d_name.len, dentry->d_name.name, inode->i_ino,
+	dbg_gen("dent '%pd' from ino %lu (nlink %d) in dir ino %lu",
+		dentry, inode->i_ino,
 		inode->i_nlink, dir->i_ino);
 	ubifs_assert(mutex_is_locked(&dir->i_mutex));
 	ubifs_assert(mutex_is_locked(&inode->i_mutex));
@@ -656,8 +655,8 @@ static int ubifs_rmdir(struct inode *dir, struct dentry *dentry)
 	 * because we have extra space reserved for deletions.
 	 */
 
-	dbg_gen("directory '%.*s', ino %lu in dir ino %lu", dentry->d_name.len,
-		dentry->d_name.name, inode->i_ino, dir->i_ino);
+	dbg_gen("directory '%pd', ino %lu in dir ino %lu", dentry,
+		inode->i_ino, dir->i_ino);
 	ubifs_assert(mutex_is_locked(&dir->i_mutex));
 	ubifs_assert(mutex_is_locked(&inode->i_mutex));
 	err = check_dir_empty(c, dentry->d_inode);
@@ -716,8 +715,8 @@ static int ubifs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 	 * directory inode.
 	 */
 
-	dbg_gen("dent '%.*s', mode %#hx in dir ino %lu",
-		dentry->d_name.len, dentry->d_name.name, mode, dir->i_ino);
+	dbg_gen("dent '%pd', mode %#hx in dir ino %lu",
+		dentry, mode, dir->i_ino);
 
 	err = ubifs_budget_space(c, &req);
 	if (err)
@@ -778,8 +777,7 @@ static int ubifs_mknod(struct inode *dir, struct dentry *dentry,
 	 * directory inode.
 	 */
 
-	dbg_gen("dent '%.*s' in dir ino %lu",
-		dentry->d_name.len, dentry->d_name.name, dir->i_ino);
+	dbg_gen("dent '%pd' in dir ino %lu", dentry, dir->i_ino);
 
 	if (!new_valid_dev(rdev))
 		return -EINVAL;
@@ -853,8 +851,8 @@ static int ubifs_symlink(struct inode *dir, struct dentry *dentry,
 	 * directory inode.
 	 */
 
-	dbg_gen("dent '%.*s', target '%s' in dir ino %lu", dentry->d_name.len,
-		dentry->d_name.name, symname, dir->i_ino);
+	dbg_gen("dent '%pd', target '%s' in dir ino %lu", dentry,
+		symname, dir->i_ino);
 
 	if (len > UBIFS_MAX_INO_DATA)
 		return -ENAMETOOLONG;
@@ -979,10 +977,9 @@ static int ubifs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	 * separately.
 	 */
 
-	dbg_gen("dent '%.*s' ino %lu in dir ino %lu to dent '%.*s' in dir ino %lu",
-		old_dentry->d_name.len, old_dentry->d_name.name,
-		old_inode->i_ino, old_dir->i_ino, new_dentry->d_name.len,
-		new_dentry->d_name.name, new_dir->i_ino);
+	dbg_gen("dent '%pd' ino %lu in dir ino %lu to dent '%pd' in dir ino %lu",
+		old_dentry, old_inode->i_ino, old_dir->i_ino,
+		new_dentry, new_dir->i_ino);
 	ubifs_assert(mutex_is_locked(&old_dir->i_mutex));
 	ubifs_assert(mutex_is_locked(&new_dir->i_mutex));
 	if (unlink)
diff --git a/fs/ubifs/journal.c b/fs/ubifs/journal.c
index afaad07f3b29..0e045e75abd8 100644
--- a/fs/ubifs/journal.c
+++ b/fs/ubifs/journal.c
@@ -933,10 +933,8 @@ int ubifs_jnl_rename(struct ubifs_info *c, const struct inode *old_dir,
 	int move = (old_dir != new_dir);
 	struct ubifs_inode *uninitialized_var(new_ui);
 
-	dbg_jnl("dent '%.*s' in dir ino %lu to dent '%.*s' in dir ino %lu",
-		old_dentry->d_name.len, old_dentry->d_name.name,
-		old_dir->i_ino, new_dentry->d_name.len,
-		new_dentry->d_name.name, new_dir->i_ino);
+	dbg_jnl("dent '%pd' in dir ino %lu to dent '%pd' in dir ino %lu",
+		old_dentry, old_dir->i_ino, new_dentry, new_dir->i_ino);
 	ubifs_assert(ubifs_inode(old_dir)->data_len == 0);
 	ubifs_assert(ubifs_inode(new_dir)->data_len == 0);
 	ubifs_assert(mutex_is_locked(&ubifs_inode(old_dir)->ui_mutex));
diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
index 0f7139bdb2c2..5e0a63b1b0d5 100644
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -303,8 +303,8 @@ int ubifs_setxattr(struct dentry *dentry, const char *name,
 	union ubifs_key key;
 	int err, type;
 
-	dbg_gen("xattr '%s', host ino %lu ('%.*s'), size %zd", name,
-		host->i_ino, dentry->d_name.len, dentry->d_name.name, size);
+	dbg_gen("xattr '%s', host ino %lu ('%pd'), size %zd", name,
+		host->i_ino, dentry, size);
 	ubifs_assert(mutex_is_locked(&host->i_mutex));
 
 	if (size > UBIFS_MAX_INO_DATA)
@@ -367,8 +367,8 @@ ssize_t ubifs_getxattr(struct dentry *dentry, const char *name, void *buf,
 	union ubifs_key key;
 	int err;
 
-	dbg_gen("xattr '%s', ino %lu ('%.*s'), buf size %zd", name,
-		host->i_ino, dentry->d_name.len, dentry->d_name.name, size);
+	dbg_gen("xattr '%s', ino %lu ('%pd'), buf size %zd", name,
+		host->i_ino, dentry, size);
 
 	err = check_namespace(&nm);
 	if (err < 0)
@@ -426,8 +426,8 @@ ssize_t ubifs_listxattr(struct dentry *dentry, char *buffer, size_t size)
 	int err, len, written = 0;
 	struct qstr nm = { .name = NULL };
 
-	dbg_gen("ino %lu ('%.*s'), buffer size %zd", host->i_ino,
-		dentry->d_name.len, dentry->d_name.name, size);
+	dbg_gen("ino %lu ('%pd'), buffer size %zd", host->i_ino,
+		dentry, size);
 
 	len = host_ui->xattr_names + host_ui->xattr_cnt;
 	if (!buffer)
@@ -529,8 +529,8 @@ int ubifs_removexattr(struct dentry *dentry, const char *name)
 	union ubifs_key key;
 	int err;
 
-	dbg_gen("xattr '%s', ino %lu ('%.*s')", name,
-		host->i_ino, dentry->d_name.len, dentry->d_name.name);
+	dbg_gen("xattr '%s', ino %lu ('%pd')", name,
+		host->i_ino, dentry);
 	ubifs_assert(mutex_is_locked(&host->i_mutex));
 
 	err = check_namespace(&nm);
-- 
cgit 


From 84eb3532b574bb6a65c0aad9591b28b2adcd47d2 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 16 Sep 2013 10:59:55 -0400
Subject: ncpfs: switch to %p[dD]

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/ncpfs/dir.c  | 55 ++++++++++++++++++++-----------------------------------
 fs/ncpfs/file.c | 12 ++++--------
 2 files changed, 24 insertions(+), 43 deletions(-)

diff --git a/fs/ncpfs/dir.c b/fs/ncpfs/dir.c
index 3be047474bfc..c320ac52353e 100644
--- a/fs/ncpfs/dir.c
+++ b/fs/ncpfs/dir.c
@@ -339,9 +339,8 @@ ncp_lookup_validate(struct dentry *dentry, unsigned int flags)
 	if (val)
 		goto finished;
 
-	DDPRINTK("ncp_lookup_validate: %s/%s not valid, age=%ld, server lookup\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name,
-		NCP_GET_AGE(dentry));
+	DDPRINTK("ncp_lookup_validate: %pd2 not valid, age=%ld, server lookup\n",
+		dentry, NCP_GET_AGE(dentry));
 
 	len = sizeof(__name);
 	if (ncp_is_server_root(dir)) {
@@ -359,8 +358,8 @@ ncp_lookup_validate(struct dentry *dentry, unsigned int flags)
 			res = ncp_obtain_info(server, dir, __name, &(finfo.i));
 	}
 	finfo.volume = finfo.i.volNumber;
-	DDPRINTK("ncp_lookup_validate: looked for %s/%s, res=%d\n",
-		dentry->d_parent->d_name.name, __name, res);
+	DDPRINTK("ncp_lookup_validate: looked for %pd/%s, res=%d\n",
+		dentry->d_parent, __name, res);
 	/*
 	 * If we didn't find it, or if it has a different dirEntNum to
 	 * what we remember, it's not valid any more.
@@ -454,8 +453,7 @@ static int ncp_readdir(struct file *file, struct dir_context *ctx)
 	ctl.page  = NULL;
 	ctl.cache = NULL;
 
-	DDPRINTK("ncp_readdir: reading %s/%s, pos=%d\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name,
+	DDPRINTK("ncp_readdir: reading %pD2, pos=%d\n", file,
 		(int) ctx->pos);
 
 	result = -EIO;
@@ -740,12 +738,10 @@ ncp_do_readdir(struct file *file, struct dir_context *ctx,
 	int more;
 	size_t bufsize;
 
-	DPRINTK("ncp_do_readdir: %s/%s, fpos=%ld\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name,
+	DPRINTK("ncp_do_readdir: %pD2, fpos=%ld\n", file,
 		(unsigned long) ctx->pos);
-	PPRINTK("ncp_do_readdir: init %s, volnum=%d, dirent=%u\n",
-		dentry->d_name.name, NCP_FINFO(dir)->volNumber,
-		NCP_FINFO(dir)->dirEntNum);
+	PPRINTK("ncp_do_readdir: init %pD, volnum=%d, dirent=%u\n",
+		file, NCP_FINFO(dir)->volNumber, NCP_FINFO(dir)->dirEntNum);
 
 	err = ncp_initialize_search(server, dir, &seq);
 	if (err) {
@@ -850,8 +846,7 @@ static struct dentry *ncp_lookup(struct inode *dir, struct dentry *dentry, unsig
 	if (!ncp_conn_valid(server))
 		goto finished;
 
-	PPRINTK("ncp_lookup: server lookup for %s/%s\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name);
+	PPRINTK("ncp_lookup: server lookup for %pd2\n", dentry);
 
 	len = sizeof(__name);
 	if (ncp_is_server_root(dir)) {
@@ -867,8 +862,7 @@ static struct dentry *ncp_lookup(struct inode *dir, struct dentry *dentry, unsig
 		if (!res)
 			res = ncp_obtain_info(server, dir, __name, &(finfo.i));
 	}
-	PPRINTK("ncp_lookup: looked for %s/%s, res=%d\n",
-		dentry->d_parent->d_name.name, __name, res);
+	PPRINTK("ncp_lookup: looked for %pd2, res=%d\n", dentry, res);
 	/*
 	 * If we didn't find an entry, make a negative dentry.
 	 */
@@ -915,8 +909,7 @@ out:
 	return error;
 
 out_close:
-	PPRINTK("ncp_instantiate: %s/%s failed, closing file\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name);
+	PPRINTK("ncp_instantiate: %pd2 failed, closing file\n", dentry);
 	ncp_close_file(NCP_SERVER(dir), finfo->file_handle);
 	goto out;
 }
@@ -930,8 +923,7 @@ int ncp_create_new(struct inode *dir, struct dentry *dentry, umode_t mode,
 	int opmode;
 	__u8 __name[NCP_MAXPATHLEN + 1];
 	
-	PPRINTK("ncp_create_new: creating %s/%s, mode=%hx\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name, mode);
+	PPRINTK("ncp_create_new: creating %pd2, mode=%hx\n", dentry, mode);
 
 	ncp_age_dentry(server, dentry);
 	len = sizeof(__name);
@@ -960,8 +952,7 @@ int ncp_create_new(struct inode *dir, struct dentry *dentry, umode_t mode,
 				error = -ENAMETOOLONG;
 			else if (result < 0)
 				error = result;
-			DPRINTK("ncp_create: %s/%s failed\n",
-				dentry->d_parent->d_name.name, dentry->d_name.name);
+			DPRINTK("ncp_create: %pd2 failed\n", dentry);
 			goto out;
 		}
 		opmode = O_WRONLY;
@@ -994,8 +985,7 @@ static int ncp_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode)
 	int error, len;
 	__u8 __name[NCP_MAXPATHLEN + 1];
 
-	DPRINTK("ncp_mkdir: making %s/%s\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name);
+	DPRINTK("ncp_mkdir: making %pd2\n", dentry);
 
 	ncp_age_dentry(server, dentry);
 	len = sizeof(__name);
@@ -1032,8 +1022,7 @@ static int ncp_rmdir(struct inode *dir, struct dentry *dentry)
 	int error, result, len;
 	__u8 __name[NCP_MAXPATHLEN + 1];
 
-	DPRINTK("ncp_rmdir: removing %s/%s\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name);
+	DPRINTK("ncp_rmdir: removing %pd2\n", dentry);
 
 	len = sizeof(__name);
 	error = ncp_io2vol(server, __name, &len, dentry->d_name.name,
@@ -1078,8 +1067,7 @@ static int ncp_unlink(struct inode *dir, struct dentry *dentry)
 	int error;
 
 	server = NCP_SERVER(dir);
-	DPRINTK("ncp_unlink: unlinking %s/%s\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name);
+	DPRINTK("ncp_unlink: unlinking %pd2\n", dentry);
 	
 	/*
 	 * Check whether to close the file ...
@@ -1099,8 +1087,7 @@ static int ncp_unlink(struct inode *dir, struct dentry *dentry)
 #endif
 	switch (error) {
 		case 0x00:
-			DPRINTK("ncp: removed %s/%s\n",
-				dentry->d_parent->d_name.name, dentry->d_name.name);
+			DPRINTK("ncp: removed %pd2\n", dentry);
 			break;
 		case 0x85:
 		case 0x8A:
@@ -1133,9 +1120,7 @@ static int ncp_rename(struct inode *old_dir, struct dentry *old_dentry,
 	int old_len, new_len;
 	__u8 __old_name[NCP_MAXPATHLEN + 1], __new_name[NCP_MAXPATHLEN + 1];
 
-	DPRINTK("ncp_rename: %s/%s to %s/%s\n",
-		old_dentry->d_parent->d_name.name, old_dentry->d_name.name,
-		new_dentry->d_parent->d_name.name, new_dentry->d_name.name);
+	DPRINTK("ncp_rename: %pd2 to %pd2\n", old_dentry, new_dentry);
 
 	ncp_age_dentry(server, old_dentry);
 	ncp_age_dentry(server, new_dentry);
@@ -1165,8 +1150,8 @@ static int ncp_rename(struct inode *old_dir, struct dentry *old_dentry,
 #endif
 	switch (error) {
 		case 0x00:
-               	        DPRINTK("ncp renamed %s -> %s.\n",
-                                old_dentry->d_name.name,new_dentry->d_name.name);
+               	        DPRINTK("ncp renamed %pd -> %pd.\n",
+                                old_dentry, new_dentry);
 			break;
 		case 0x9E:
 			error = -ENAMETOOLONG;
diff --git a/fs/ncpfs/file.c b/fs/ncpfs/file.c
index 122e260247f5..8f5074e1ecb9 100644
--- a/fs/ncpfs/file.c
+++ b/fs/ncpfs/file.c
@@ -107,8 +107,7 @@ ncp_file_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 	void* freepage;
 	size_t freelen;
 
-	DPRINTK("ncp_file_read: enter %s/%s\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name);
+	DPRINTK("ncp_file_read: enter %pd2\n", dentry);
 
 	pos = *ppos;
 
@@ -166,8 +165,7 @@ ncp_file_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
 
 	file_accessed(file);
 
-	DPRINTK("ncp_file_read: exit %s/%s\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name);
+	DPRINTK("ncp_file_read: exit %pd2\n", dentry);
 outrel:
 	ncp_inode_close(inode);		
 	return already_read ? already_read : error;
@@ -184,8 +182,7 @@ ncp_file_write(struct file *file, const char __user *buf, size_t count, loff_t *
 	int errno;
 	void* bouncebuffer;
 
-	DPRINTK("ncp_file_write: enter %s/%s\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name);
+	DPRINTK("ncp_file_write: enter %pd2\n", dentry);
 	if ((ssize_t) count < 0)
 		return -EINVAL;
 	pos = *ppos;
@@ -264,8 +261,7 @@ ncp_file_write(struct file *file, const char __user *buf, size_t count, loff_t *
 			i_size_write(inode, pos);
 		mutex_unlock(&inode->i_mutex);
 	}
-	DPRINTK("ncp_file_write: exit %s/%s\n",
-		dentry->d_parent->d_name.name, dentry->d_name.name);
+	DPRINTK("ncp_file_write: exit %pd2\n", dentry);
 outrel:
 	ncp_inode_close(inode);		
 	return already_written ? already_written : errno;
-- 
cgit 


From 7b00ed6fe6321547b9d51f5bfb30e7b5932e6889 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 16 Sep 2013 21:19:20 -0400
Subject: put_mnt_ns(): use drop_collected_mounts()

... rather than open-coding it

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/namespace.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index da5c49483430..5918fc31a636 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2802,11 +2802,7 @@ void put_mnt_ns(struct mnt_namespace *ns)
 {
 	if (!atomic_dec_and_test(&ns->count))
 		return;
-	namespace_lock();
-	br_write_lock(&vfsmount_lock);
-	umount_tree(ns->root, 0);
-	br_write_unlock(&vfsmount_lock);
-	namespace_unlock();
+	drop_collected_mounts(&ns->root->mnt);
 	free_mnt_ns(ns);
 }
 
-- 
cgit 


From e84f9e57b90ca89664d733a7cef19aa7ccd832f3 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 22 Sep 2013 14:17:15 -0400
Subject: consolidate the reassignments of ->f_op in ->open() instances

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/char/misc.c             | 12 +++---------
 drivers/gpu/drm/drm_fops.c      | 17 ++++++-----------
 drivers/media/dvb-core/dvbdev.c | 19 ++++++-------------
 drivers/usb/core/file.c         | 16 ++++------------
 fs/char_dev.c                   |  6 ++++--
 include/linux/fs.h              | 11 +++++++++++
 sound/core/sound.c              | 22 ++++++----------------
 sound/sound_core.c              | 17 +++--------------
 8 files changed, 43 insertions(+), 77 deletions(-)

diff --git a/drivers/char/misc.c b/drivers/char/misc.c
index 190d4423653f..fd0f7c4b4df9 100644
--- a/drivers/char/misc.c
+++ b/drivers/char/misc.c
@@ -114,7 +114,7 @@ static int misc_open(struct inode * inode, struct file * file)
 	int minor = iminor(inode);
 	struct miscdevice *c;
 	int err = -ENODEV;
-	const struct file_operations *old_fops, *new_fops = NULL;
+	const struct file_operations *new_fops = NULL;
 
 	mutex_lock(&misc_mtx);
 	
@@ -141,17 +141,11 @@ static int misc_open(struct inode * inode, struct file * file)
 	}
 
 	err = 0;
-	old_fops = file->f_op;
-	file->f_op = new_fops;
+	replace_fops(file, new_fops);
 	if (file->f_op->open) {
 		file->private_data = c;
-		err=file->f_op->open(inode,file);
-		if (err) {
-			fops_put(file->f_op);
-			file->f_op = fops_get(old_fops);
-		}
+		err = file->f_op->open(inode,file);
 	}
-	fops_put(old_fops);
 fail:
 	mutex_unlock(&misc_mtx);
 	return err;
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index 3f84277d7036..22d14ecbd3ec 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -148,7 +148,7 @@ int drm_stub_open(struct inode *inode, struct file *filp)
 	struct drm_minor *minor;
 	int minor_id = iminor(inode);
 	int err = -ENODEV;
-	const struct file_operations *old_fops;
+	const struct file_operations *new_fops;
 
 	DRM_DEBUG("\n");
 
@@ -163,18 +163,13 @@ int drm_stub_open(struct inode *inode, struct file *filp)
 	if (drm_device_is_unplugged(dev))
 		goto out;
 
-	old_fops = filp->f_op;
-	filp->f_op = fops_get(dev->driver->fops);
-	if (filp->f_op == NULL) {
-		filp->f_op = old_fops;
+	new_fops = fops_get(dev->driver->fops);
+	if (!new_fops)
 		goto out;
-	}
-	if (filp->f_op->open && (err = filp->f_op->open(inode, filp))) {
-		fops_put(filp->f_op);
-		filp->f_op = fops_get(old_fops);
-	}
-	fops_put(old_fops);
 
+	replace_fops(filp, new_fops);
+	if (filp->f_op->open)
+		err = filp->f_op->open(inode, filp);
 out:
 	mutex_unlock(&drm_global_mutex);
 	return err;
diff --git a/drivers/media/dvb-core/dvbdev.c b/drivers/media/dvb-core/dvbdev.c
index 401ef64f92c6..983db75de350 100644
--- a/drivers/media/dvb-core/dvbdev.c
+++ b/drivers/media/dvb-core/dvbdev.c
@@ -74,22 +74,15 @@ static int dvb_device_open(struct inode *inode, struct file *file)
 
 	if (dvbdev && dvbdev->fops) {
 		int err = 0;
-		const struct file_operations *old_fops;
+		const struct file_operations *new_fops;
 
-		file->private_data = dvbdev;
-		old_fops = file->f_op;
-		file->f_op = fops_get(dvbdev->fops);
-		if (file->f_op == NULL) {
-			file->f_op = old_fops;
+		new_fops = fops_get(dvbdev->fops);
+		if (!new_fops)
 			goto fail;
-		}
-		if(file->f_op->open)
+		file->private_data = dvbdev;
+		replace_fops(file, new_fops);
+		if (file->f_op->open)
 			err = file->f_op->open(inode,file);
-		if (err) {
-			fops_put(file->f_op);
-			file->f_op = fops_get(old_fops);
-		}
-		fops_put(old_fops);
 		up_read(&minor_rwsem);
 		mutex_unlock(&dvbdev_mutex);
 		return err;
diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c
index 7421888087a3..fe0d8365411a 100644
--- a/drivers/usb/core/file.c
+++ b/drivers/usb/core/file.c
@@ -29,27 +29,19 @@ static DECLARE_RWSEM(minor_rwsem);
 
 static int usb_open(struct inode * inode, struct file * file)
 {
-	int minor = iminor(inode);
-	const struct file_operations *c;
 	int err = -ENODEV;
-	const struct file_operations *old_fops, *new_fops = NULL;
+	const struct file_operations *new_fops;
 
 	down_read(&minor_rwsem);
-	c = usb_minors[minor];
+	new_fops = fops_get(usb_minors[iminor(inode)]);
 
-	if (!c || !(new_fops = fops_get(c)))
+	if (!new_fops)
 		goto done;
 
-	old_fops = file->f_op;
-	file->f_op = new_fops;
+	replace_fops(file, new_fops);
 	/* Curiouser and curiouser... NULL ->open() as "no device" ? */
 	if (file->f_op->open)
 		err = file->f_op->open(inode,file);
-	if (err) {
-		fops_put(file->f_op);
-		file->f_op = fops_get(old_fops);
-	}
-	fops_put(old_fops);
  done:
 	up_read(&minor_rwsem);
 	return err;
diff --git a/fs/char_dev.c b/fs/char_dev.c
index afc2bb691780..94b5f60076da 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -368,6 +368,7 @@ void cdev_put(struct cdev *p)
  */
 static int chrdev_open(struct inode *inode, struct file *filp)
 {
+	const struct file_operations *fops;
 	struct cdev *p;
 	struct cdev *new = NULL;
 	int ret = 0;
@@ -400,10 +401,11 @@ static int chrdev_open(struct inode *inode, struct file *filp)
 		return ret;
 
 	ret = -ENXIO;
-	filp->f_op = fops_get(p->ops);
-	if (!filp->f_op)
+	fops = fops_get(p->ops);
+	if (!fops)
 		goto out_cdev_put;
 
+	replace_fops(filp, fops);
 	if (filp->f_op->open) {
 		ret = filp->f_op->open(inode, filp);
 		if (ret)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index d80c2437d624..b09e4e1d747a 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1875,6 +1875,17 @@ extern struct dentry *mount_pseudo(struct file_system_type *, char *,
 	(((fops) && try_module_get((fops)->owner) ? (fops) : NULL))
 #define fops_put(fops) \
 	do { if (fops) module_put((fops)->owner); } while(0)
+/*
+ * This one is to be used *ONLY* from ->open() instances.
+ * fops must be non-NULL, pinned down *and* module dependencies
+ * should be sufficient to pin the caller down as well.
+ */
+#define replace_fops(f, fops) \
+	do {	\
+		struct file *__file = (f); \
+		fops_put(__file->f_op); \
+		BUG_ON(!(__file->f_op = (fops))); \
+	} while(0)
 
 extern int register_filesystem(struct file_system_type *);
 extern int unregister_filesystem(struct file_system_type *);
diff --git a/sound/core/sound.c b/sound/core/sound.c
index f002bd911dae..437c25ea6403 100644
--- a/sound/core/sound.c
+++ b/sound/core/sound.c
@@ -153,7 +153,7 @@ static int snd_open(struct inode *inode, struct file *file)
 {
 	unsigned int minor = iminor(inode);
 	struct snd_minor *mptr = NULL;
-	const struct file_operations *old_fops;
+	const struct file_operations *new_fops;
 	int err = 0;
 
 	if (minor >= ARRAY_SIZE(snd_minors))
@@ -167,24 +167,14 @@ static int snd_open(struct inode *inode, struct file *file)
 			return -ENODEV;
 		}
 	}
-	old_fops = file->f_op;
-	file->f_op = fops_get(mptr->f_ops);
-	if (file->f_op == NULL) {
-		file->f_op = old_fops;
-		err = -ENODEV;
-	}
+	new_fops = fops_get(mptr->f_ops);
 	mutex_unlock(&sound_mutex);
-	if (err < 0)
-		return err;
+	if (!new_fops)
+		return -ENODEV;
+	replace_fops(file, new_fops);
 
-	if (file->f_op->open) {
+	if (file->f_op->open)
 		err = file->f_op->open(inode, file);
-		if (err) {
-			fops_put(file->f_op);
-			file->f_op = fops_get(old_fops);
-		}
-	}
-	fops_put(old_fops);
 	return err;
 }
 
diff --git a/sound/sound_core.c b/sound/sound_core.c
index 45759f4cca75..11e953a1fa45 100644
--- a/sound/sound_core.c
+++ b/sound/sound_core.c
@@ -626,31 +626,20 @@ static int soundcore_open(struct inode *inode, struct file *file)
 		if (s)
 			new_fops = fops_get(s->unit_fops);
 	}
+	spin_unlock(&sound_loader_lock);
 	if (new_fops) {
 		/*
 		 * We rely upon the fact that we can't be unloaded while the
-		 * subdriver is there, so if ->open() is successful we can
-		 * safely drop the reference counter and if it is not we can
-		 * revert to old ->f_op. Ugly, indeed, but that's the cost of
-		 * switching ->f_op in the first place.
+		 * subdriver is there.
 		 */
 		int err = 0;
-		const struct file_operations *old_fops = file->f_op;
-		file->f_op = new_fops;
-		spin_unlock(&sound_loader_lock);
+		replace_fops(file, new_fops);
 
 		if (file->f_op->open)
 			err = file->f_op->open(inode,file);
 
-		if (err) {
-			fops_put(file->f_op);
-			file->f_op = fops_get(old_fops);
-		}
-
-		fops_put(old_fops);
 		return err;
 	}
-	spin_unlock(&sound_loader_lock);
 	return -ENODEV;
 }
 
-- 
cgit 


From 79b185dd1a40cf360c9d88ada7ed21f79d818613 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 22 Sep 2013 14:33:32 -0400
Subject: dmxdev: get rid of pointless clearing ->f_op

nobody else will see that struct file after return from ->release()
anyway; just leave ->f_op as is and let __fput() do that fops_put().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/media/dvb-core/dmxdev.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/media/dvb-core/dmxdev.c b/drivers/media/dvb-core/dmxdev.c
index 0b4616b87195..c0363f1b6c90 100644
--- a/drivers/media/dvb-core/dmxdev.c
+++ b/drivers/media/dvb-core/dmxdev.c
@@ -206,8 +206,6 @@ static int dvb_dvr_release(struct inode *inode, struct file *file)
 	/* TODO */
 	dvbdev->users--;
 	if (dvbdev->users == 1 && dmxdev->exit == 1) {
-		fops_put(file->f_op);
-		file->f_op = NULL;
 		mutex_unlock(&dmxdev->mutex);
 		wake_up(&dvbdev->wait_queue);
 	} else
@@ -1120,8 +1118,6 @@ static int dvb_demux_release(struct inode *inode, struct file *file)
 	mutex_lock(&dmxdev->mutex);
 	dmxdev->dvbdev->users--;
 	if(dmxdev->dvbdev->users==1 && dmxdev->exit==1) {
-		fops_put(file->f_op);
-		file->f_op = NULL;
 		mutex_unlock(&dmxdev->mutex);
 		wake_up(&dmxdev->dvbdev->wait_queue);
 	} else
-- 
cgit 


From 22bd002ee76aa7d7a3393f39d977f6c106153c60 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 22 Sep 2013 14:42:05 -0400
Subject: rtl8188eu: remove dead code

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/staging/rtl8188eu/include/osdep_service.h |   5 -
 drivers/staging/rtl8188eu/os_dep/osdep_service.c  | 208 ----------------------
 2 files changed, 213 deletions(-)

diff --git a/drivers/staging/rtl8188eu/include/osdep_service.h b/drivers/staging/rtl8188eu/include/osdep_service.h
index 44f24fa31a34..36523edf6a71 100644
--- a/drivers/staging/rtl8188eu/include/osdep_service.h
+++ b/drivers/staging/rtl8188eu/include/osdep_service.h
@@ -430,11 +430,6 @@ int ATOMIC_SUB_RETURN(ATOMIC_T *v, int i);
 int ATOMIC_INC_RETURN(ATOMIC_T *v);
 int ATOMIC_DEC_RETURN(ATOMIC_T *v);
 
-/* File operation APIs, just for linux now */
-int rtw_is_file_readable(char *path);
-int rtw_retrive_from_file(char *path, u8 __user *buf, u32 sz);
-int rtw_store_to_file(char *path, u8 __user *buf, u32 sz);
-
 struct rtw_netdev_priv_indicator {
 	void *priv;
 	u32 sizeof_priv;
diff --git a/drivers/staging/rtl8188eu/os_dep/osdep_service.c b/drivers/staging/rtl8188eu/os_dep/osdep_service.c
index 4e0bfb7e153b..4aedb85a3527 100644
--- a/drivers/staging/rtl8188eu/os_dep/osdep_service.c
+++ b/drivers/staging/rtl8188eu/os_dep/osdep_service.c
@@ -356,214 +356,6 @@ inline int ATOMIC_DEC_RETURN(ATOMIC_T *v)
 	return atomic_dec_return(v);
 }
 
-/* Open a file with the specific @param path, @param flag, @param mode
- * @param fpp the pointer of struct file pointer to get struct file pointer while file opening is success
- * @param path the path of the file to open
- * @param flag file operation flags, please refer to linux document
- * @param mode please refer to linux document
- * @return Linux specific error code
- */
-static int openfile(struct file **fpp, char *path, int flag, int mode)
-{
-	struct file *fp;
-
-	fp = filp_open(path, flag, mode);
-	if (IS_ERR(fp)) {
-		*fpp = NULL;
-		return PTR_ERR(fp);
-	} else {
-		*fpp = fp;
-		return 0;
-	}
-}
-
-/* Close the file with the specific @param fp
- * @param fp the pointer of struct file to close
- * @return always 0
- */
-static int closefile(struct file *fp)
-{
-	filp_close(fp, NULL);
-	return 0;
-}
-
-static int readfile(struct file *fp, char __user *buf, int len)
-{
-	int rlen = 0, sum = 0;
-
-	if (!fp->f_op || !fp->f_op->read)
-		return -EPERM;
-
-	while (sum < len) {
-		rlen = fp->f_op->read(fp, buf+sum, len-sum, &fp->f_pos);
-		if (rlen > 0)
-			sum += rlen;
-		else if (0 != rlen)
-			return rlen;
-		else
-			break;
-	}
-	return  sum;
-}
-
-static int writefile(struct file *fp, char __user *buf, int len)
-{
-	int wlen = 0, sum = 0;
-
-	if (!fp->f_op || !fp->f_op->write)
-		return -EPERM;
-
-	while (sum < len) {
-		wlen = fp->f_op->write(fp, buf+sum, len-sum, &fp->f_pos);
-		if (wlen > 0)
-			sum += wlen;
-		else if (0 != wlen)
-			return wlen;
-		else
-			break;
-	}
-	return sum;
-}
-
-/* Test if the specifi @param path is a file and readable
- * @param path the path of the file to test
- * @return Linux specific error code
- */
-static int isfilereadable(char *path)
-{
-	struct file *fp;
-	int ret = 0;
-	mm_segment_t oldfs;
-	char __user buf;
-
-	fp = filp_open(path, O_RDONLY, 0);
-	if (IS_ERR(fp)) {
-		ret = PTR_ERR(fp);
-	} else {
-		oldfs = get_fs(); set_fs(get_ds());
-
-		if (1 != readfile(fp, &buf, 1))
-			ret = PTR_ERR(fp);
-
-		set_fs(oldfs);
-		filp_close(fp, NULL);
-	}
-	return ret;
-}
-
-/* Open the file with @param path and retrive the file content into
- * memory starting from @param buf for @param sz at most
- * @param path the path of the file to open and read
- * @param buf the starting address of the buffer to store file content
- * @param sz how many bytes to read at most
- * @return the byte we've read, or Linux specific error code
- */
-static int retrievefromfile(char *path, u8 __user *buf, u32 sz)
-{
-	int ret = -1;
-	mm_segment_t oldfs;
-	struct file *fp;
-
-	if (path && buf) {
-		ret = openfile(&fp, path, O_RDONLY, 0);
-		if (0 == ret) {
-			DBG_88E("%s openfile path:%s fp =%p\n", __func__,
-				path, fp);
-
-			oldfs = get_fs(); set_fs(get_ds());
-			ret = readfile(fp, buf, sz);
-			set_fs(oldfs);
-			closefile(fp);
-
-			DBG_88E("%s readfile, ret:%d\n", __func__, ret);
-
-		} else {
-			DBG_88E("%s openfile path:%s Fail, ret:%d\n", __func__,
-				path, ret);
-		}
-	} else {
-		DBG_88E("%s NULL pointer\n", __func__);
-		ret =  -EINVAL;
-	}
-	return ret;
-}
-
-/*
-* Open the file with @param path and wirte @param sz byte of data starting from @param buf into the file
-* @param path the path of the file to open and write
-* @param buf the starting address of the data to write into file
-* @param sz how many bytes to write at most
-* @return the byte we've written, or Linux specific error code
-*/
-static int storetofile(char *path, u8 __user *buf, u32 sz)
-{
-	int ret = 0;
-	mm_segment_t oldfs;
-	struct file *fp;
-
-	if (path && buf) {
-		ret = openfile(&fp, path, O_CREAT|O_WRONLY, 0666);
-		if (0 == ret) {
-			DBG_88E("%s openfile path:%s fp =%p\n", __func__, path, fp);
-
-			oldfs = get_fs(); set_fs(get_ds());
-			ret = writefile(fp, buf, sz);
-			set_fs(oldfs);
-			closefile(fp);
-
-			DBG_88E("%s writefile, ret:%d\n", __func__, ret);
-
-		} else {
-			DBG_88E("%s openfile path:%s Fail, ret:%d\n", __func__, path, ret);
-		}
-	} else {
-		DBG_88E("%s NULL pointer\n", __func__);
-		ret =  -EINVAL;
-	}
-	return ret;
-}
-
-/*
-* Test if the specifi @param path is a file and readable
-* @param path the path of the file to test
-* @return true or false
-*/
-int rtw_is_file_readable(char *path)
-{
-	if (isfilereadable(path) == 0)
-		return true;
-	else
-		return false;
-}
-
-/*
-* Open the file with @param path and retrive the file content into memory starting from @param buf for @param sz at most
-* @param path the path of the file to open and read
-* @param buf the starting address of the buffer to store file content
-* @param sz how many bytes to read at most
-* @return the byte we've read
-*/
-int rtw_retrive_from_file(char *path, u8 __user *buf, u32 sz)
-{
-	int ret = retrievefromfile(path, buf, sz);
-
-	return ret >= 0 ? ret : 0;
-}
-
-/*
- * Open the file with @param path and wirte @param sz byte of data
- * starting from @param buf into the file
- * @param path the path of the file to open and write
- * @param buf the starting address of the data to write into file
- * @param sz how many bytes to write at most
- * @return the byte we've written
- */
-int rtw_store_to_file(char *path, u8 __user *buf, u32 sz)
-{
-	int ret = storetofile(path, buf, sz);
-	return ret >= 0 ? ret : 0;
-}
-
 struct net_device *rtw_alloc_etherdev_with_old_priv(int sizeof_priv,
 						    void *old_priv)
 {
-- 
cgit 


From 72c2d53192004845cbc19cd8a30b3212a9288140 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 22 Sep 2013 16:27:52 -0400
Subject: file->f_op is never NULL...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/mtd/nand/nandsim.c               |  2 +-
 drivers/staging/comedi/comedi_compat32.c |  3 ---
 fs/autofs4/autofs_i.h                    |  2 +-
 fs/autofs4/dev-ioctl.c                   |  6 ------
 fs/binfmt_aout.c                         |  4 ++--
 fs/binfmt_elf.c                          |  6 +++---
 fs/binfmt_elf_fdpic.c                    |  2 +-
 fs/binfmt_em86.c                         |  2 +-
 fs/coda/dir.c                            |  3 ---
 fs/coda/file.c                           |  6 +++---
 fs/compat_ioctl.c                        |  4 ++--
 fs/coredump.c                            |  2 +-
 fs/ecryptfs/file.c                       |  8 ++++----
 fs/eventpoll.c                           |  2 +-
 fs/exec.c                                | 35 ++++++++++++++------------------
 fs/fcntl.c                               |  5 ++---
 fs/file_table.c                          |  4 ++--
 fs/ioctl.c                               |  4 ++--
 fs/locks.c                               | 12 +++++------
 fs/open.c                                |  8 ++++++--
 fs/read_write.c                          | 25 ++++++++---------------
 fs/readdir.c                             |  2 +-
 fs/select.c                              |  4 ++--
 fs/splice.c                              |  6 +++---
 fs/sync.c                                |  2 +-
 mm/memory.c                              |  2 +-
 mm/mmap.c                                |  4 ++--
 mm/nommu.c                               |  2 +-
 net/9p/trans_fd.c                        |  4 ++--
 29 files changed, 74 insertions(+), 97 deletions(-)

diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index bdc1d15369f8..d1c7de92cfdf 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -575,7 +575,7 @@ static int alloc_device(struct nandsim *ns)
 		cfile = filp_open(cache_file, O_CREAT | O_RDWR | O_LARGEFILE, 0600);
 		if (IS_ERR(cfile))
 			return PTR_ERR(cfile);
-		if (!cfile->f_op || (!cfile->f_op->read && !cfile->f_op->aio_read)) {
+		if (!cfile->f_op->read && !cfile->f_op->aio_read) {
 			NS_ERR("alloc_device: cache file not readable\n");
 			err = -EINVAL;
 			goto err_close;
diff --git a/drivers/staging/comedi/comedi_compat32.c b/drivers/staging/comedi/comedi_compat32.c
index 2dfb06aedb15..1e9da405d833 100644
--- a/drivers/staging/comedi/comedi_compat32.c
+++ b/drivers/staging/comedi/comedi_compat32.c
@@ -86,9 +86,6 @@ struct comedi32_insnlist_struct {
 static int translated_ioctl(struct file *file, unsigned int cmd,
 			    unsigned long arg)
 {
-	if (!file->f_op)
-		return -ENOTTY;
-
 	if (file->f_op->unlocked_ioctl)
 		return file->f_op->unlocked_ioctl(file, cmd, arg);
 
diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index 3f1128b37e46..ebab147e9700 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -271,7 +271,7 @@ void autofs4_clean_ino(struct autofs_info *);
 
 static inline int autofs_prepare_pipe(struct file *pipe)
 {
-	if (!pipe->f_op || !pipe->f_op->write)
+	if (!pipe->f_op->write)
 		return -EINVAL;
 	if (!S_ISFIFO(file_inode(pipe)->i_mode))
 		return -EINVAL;
diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c
index 0f00da329e71..1818ce7f5a06 100644
--- a/fs/autofs4/dev-ioctl.c
+++ b/fs/autofs4/dev-ioctl.c
@@ -658,12 +658,6 @@ static int _autofs_dev_ioctl(unsigned int command, struct autofs_dev_ioctl __use
 			goto out;
 		}
 
-		if (!fp->f_op) {
-			err = -ENOTTY;
-			fput(fp);
-			goto out;
-		}
-
 		sbi = autofs_dev_ioctl_sbi(fp);
 		if (!sbi || sbi->magic != AUTOFS_SBI_MAGIC) {
 			err = -EINVAL;
diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index 89dec7f789a4..faaa819f70fa 100644
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -221,7 +221,7 @@ static int load_aout_binary(struct linux_binprm * bprm)
 	 * Requires a mmap handler. This prevents people from using a.out
 	 * as part of an exploit attack against /proc-related vulnerabilities.
 	 */
-	if (!bprm->file->f_op || !bprm->file->f_op->mmap)
+	if (!bprm->file->f_op->mmap)
 		return -ENOEXEC;
 
 	fd_offset = N_TXTOFF(ex);
@@ -374,7 +374,7 @@ static int load_aout_library(struct file *file)
 	 * Requires a mmap handler. This prevents people from using a.out
 	 * as part of an exploit attack against /proc-related vulnerabilities.
 	 */
-	if (!file->f_op || !file->f_op->mmap)
+	if (!file->f_op->mmap)
 		goto out;
 
 	if (N_FLAGS(ex))
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 4c94a79991bb..501c8a4d6eb1 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -406,7 +406,7 @@ static unsigned long load_elf_interp(struct elfhdr *interp_elf_ex,
 		goto out;
 	if (!elf_check_arch(interp_elf_ex))
 		goto out;
-	if (!interpreter->f_op || !interpreter->f_op->mmap)
+	if (!interpreter->f_op->mmap)
 		goto out;
 
 	/*
@@ -607,7 +607,7 @@ static int load_elf_binary(struct linux_binprm *bprm)
 		goto out;
 	if (!elf_check_arch(&loc->elf_ex))
 		goto out;
-	if (!bprm->file->f_op || !bprm->file->f_op->mmap)
+	if (!bprm->file->f_op->mmap)
 		goto out;
 
 	/* Now read in all of the header information */
@@ -1028,7 +1028,7 @@ static int load_elf_library(struct file *file)
 
 	/* First of all, some simple consistency checks */
 	if (elf_ex.e_type != ET_EXEC || elf_ex.e_phnum > 2 ||
-	    !elf_check_arch(&elf_ex) || !file->f_op || !file->f_op->mmap)
+	    !elf_check_arch(&elf_ex) || !file->f_op->mmap)
 		goto out;
 
 	/* Now read in all of the header information */
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index c166f325a183..ea4c6273b4a5 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -111,7 +111,7 @@ static int is_elf_fdpic(struct elfhdr *hdr, struct file *file)
 		return 0;
 	if (!elf_check_arch(hdr) || !elf_check_fdpic(hdr))
 		return 0;
-	if (!file->f_op || !file->f_op->mmap)
+	if (!file->f_op->mmap)
 		return 0;
 	return 1;
 }
diff --git a/fs/binfmt_em86.c b/fs/binfmt_em86.c
index 037a3e2b045b..f37b08cea1f7 100644
--- a/fs/binfmt_em86.c
+++ b/fs/binfmt_em86.c
@@ -38,7 +38,7 @@ static int load_em86(struct linux_binprm *bprm)
 	/* First of all, some simple consistency checks */
 	if ((elf_ex.e_type != ET_EXEC && elf_ex.e_type != ET_DYN) ||
 		(!((elf_ex.e_machine == EM_386) || (elf_ex.e_machine == EM_486))) ||
-		(!bprm->file->f_op || !bprm->file->f_op->mmap)) {
+		!bprm->file->f_op->mmap) {
 			return -ENOEXEC;
 	}
 
diff --git a/fs/coda/dir.c b/fs/coda/dir.c
index 190effc6a6fa..8c8d469c9283 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -387,9 +387,6 @@ static int coda_readdir(struct file *coda_file, struct dir_context *ctx)
 	BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
 	host_file = cfi->cfi_container;
 
-	if (!host_file->f_op)
-		return -ENOTDIR;
-
 	if (host_file->f_op->iterate) {
 		struct inode *host_inode = file_inode(host_file);
 		mutex_lock(&host_inode->i_mutex);
diff --git a/fs/coda/file.c b/fs/coda/file.c
index 380b798f8443..9e83b7790212 100644
--- a/fs/coda/file.c
+++ b/fs/coda/file.c
@@ -36,7 +36,7 @@ coda_file_read(struct file *coda_file, char __user *buf, size_t count, loff_t *p
 	BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
 	host_file = cfi->cfi_container;
 
-	if (!host_file->f_op || !host_file->f_op->read)
+	if (!host_file->f_op->read)
 		return -EINVAL;
 
 	return host_file->f_op->read(host_file, buf, count, ppos);
@@ -75,7 +75,7 @@ coda_file_write(struct file *coda_file, const char __user *buf, size_t count, lo
 	BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
 	host_file = cfi->cfi_container;
 
-	if (!host_file->f_op || !host_file->f_op->write)
+	if (!host_file->f_op->write)
 		return -EINVAL;
 
 	host_inode = file_inode(host_file);
@@ -105,7 +105,7 @@ coda_file_mmap(struct file *coda_file, struct vm_area_struct *vma)
 	BUG_ON(!cfi || cfi->cfi_magic != CODA_MAGIC);
 	host_file = cfi->cfi_container;
 
-	if (!host_file->f_op || !host_file->f_op->mmap)
+	if (!host_file->f_op->mmap)
 		return -ENODEV;
 
 	coda_inode = file_inode(coda_file);
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 5d19acfa7c6c..dc52e13d58e0 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -1583,13 +1583,13 @@ asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
 		/*FALL THROUGH*/
 
 	default:
-		if (f.file->f_op && f.file->f_op->compat_ioctl) {
+		if (f.file->f_op->compat_ioctl) {
 			error = f.file->f_op->compat_ioctl(f.file, cmd, arg);
 			if (error != -ENOIOCTLCMD)
 				goto out_fput;
 		}
 
-		if (!f.file->f_op || !f.file->f_op->unlocked_ioctl)
+		if (!f.file->f_op->unlocked_ioctl)
 			goto do_ioctl;
 		break;
 	}
diff --git a/fs/coredump.c b/fs/coredump.c
index 9bdeca12ae0e..42c3b8423669 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -645,7 +645,7 @@ void do_coredump(siginfo_t *siginfo)
 		 */
 		if (!uid_eq(inode->i_uid, current_fsuid()))
 			goto close_fail;
-		if (!cprm.file->f_op || !cprm.file->f_op->write)
+		if (!cprm.file->f_op->write)
 			goto close_fail;
 		if (do_truncate(cprm.file->f_path.dentry, 0, 0, cprm.file))
 			goto close_fail;
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index 992cf95830b5..6b1cd2b0c751 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -271,7 +271,7 @@ static int ecryptfs_flush(struct file *file, fl_owner_t td)
 {
 	struct file *lower_file = ecryptfs_file_to_lower(file);
 
-	if (lower_file->f_op && lower_file->f_op->flush) {
+	if (lower_file->f_op->flush) {
 		filemap_write_and_wait(file->f_mapping);
 		return lower_file->f_op->flush(lower_file, td);
 	}
@@ -305,7 +305,7 @@ static int ecryptfs_fasync(int fd, struct file *file, int flag)
 	struct file *lower_file = NULL;
 
 	lower_file = ecryptfs_file_to_lower(file);
-	if (lower_file->f_op && lower_file->f_op->fasync)
+	if (lower_file->f_op->fasync)
 		rc = lower_file->f_op->fasync(fd, lower_file, flag);
 	return rc;
 }
@@ -318,7 +318,7 @@ ecryptfs_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 
 	if (ecryptfs_file_to_private(file))
 		lower_file = ecryptfs_file_to_lower(file);
-	if (lower_file && lower_file->f_op && lower_file->f_op->unlocked_ioctl)
+	if (lower_file->f_op && lower_file->f_op->unlocked_ioctl)
 		rc = lower_file->f_op->unlocked_ioctl(lower_file, cmd, arg);
 	return rc;
 }
@@ -332,7 +332,7 @@ ecryptfs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 
 	if (ecryptfs_file_to_private(file))
 		lower_file = ecryptfs_file_to_lower(file);
-	if (lower_file && lower_file->f_op && lower_file->f_op->compat_ioctl)
+	if (lower_file->f_op && lower_file->f_op->compat_ioctl)
 		rc = lower_file->f_op->compat_ioctl(lower_file, cmd, arg);
 	return rc;
 }
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 473e09da7d02..31fd77cd81eb 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1816,7 +1816,7 @@ SYSCALL_DEFINE4(epoll_ctl, int, epfd, int, op, int, fd,
 
 	/* The target file descriptor must support poll */
 	error = -EPERM;
-	if (!tf.file->f_op || !tf.file->f_op->poll)
+	if (!tf.file->f_op->poll)
 		goto error_tgt_fput;
 
 	/* Check if EPOLLWAKEUP is allowed */
diff --git a/fs/exec.c b/fs/exec.c
index 8875dd10ae7a..351440fbf1ee 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -106,6 +106,7 @@ static inline void put_binfmt(struct linux_binfmt * fmt)
  */
 SYSCALL_DEFINE1(uselib, const char __user *, library)
 {
+	struct linux_binfmt *fmt;
 	struct file *file;
 	struct filename *tmp = getname(library);
 	int error = PTR_ERR(tmp);
@@ -136,24 +137,21 @@ SYSCALL_DEFINE1(uselib, const char __user *, library)
 	fsnotify_open(file);
 
 	error = -ENOEXEC;
-	if(file->f_op) {
-		struct linux_binfmt * fmt;
 
-		read_lock(&binfmt_lock);
-		list_for_each_entry(fmt, &formats, lh) {
-			if (!fmt->load_shlib)
-				continue;
-			if (!try_module_get(fmt->module))
-				continue;
-			read_unlock(&binfmt_lock);
-			error = fmt->load_shlib(file);
-			read_lock(&binfmt_lock);
-			put_binfmt(fmt);
-			if (error != -ENOEXEC)
-				break;
-		}
+	read_lock(&binfmt_lock);
+	list_for_each_entry(fmt, &formats, lh) {
+		if (!fmt->load_shlib)
+			continue;
+		if (!try_module_get(fmt->module))
+			continue;
 		read_unlock(&binfmt_lock);
+		error = fmt->load_shlib(file);
+		read_lock(&binfmt_lock);
+		put_binfmt(fmt);
+		if (error != -ENOEXEC)
+			break;
 	}
+	read_unlock(&binfmt_lock);
 exit:
 	fput(file);
 out:
@@ -1277,13 +1275,10 @@ static int check_unsafe_exec(struct linux_binprm *bprm)
  */
 int prepare_binprm(struct linux_binprm *bprm)
 {
-	umode_t mode;
-	struct inode * inode = file_inode(bprm->file);
+	struct inode *inode = file_inode(bprm->file);
+	umode_t mode = inode->i_mode;
 	int retval;
 
-	mode = inode->i_mode;
-	if (bprm->file->f_op == NULL)
-		return -EACCES;
 
 	/* clear any previous set[ug]id data from a previous binary */
 	bprm->cred->euid = current_euid();
diff --git a/fs/fcntl.c b/fs/fcntl.c
index 65343c3741ff..ef6866592a0f 100644
--- a/fs/fcntl.c
+++ b/fs/fcntl.c
@@ -56,7 +56,7 @@ static int setfl(int fd, struct file * filp, unsigned long arg)
 				return -EINVAL;
 	}
 
-	if (filp->f_op && filp->f_op->check_flags)
+	if (filp->f_op->check_flags)
 		error = filp->f_op->check_flags(arg);
 	if (error)
 		return error;
@@ -64,8 +64,7 @@ static int setfl(int fd, struct file * filp, unsigned long arg)
 	/*
 	 * ->fasync() is responsible for setting the FASYNC bit.
 	 */
-	if (((arg ^ filp->f_flags) & FASYNC) && filp->f_op &&
-			filp->f_op->fasync) {
+	if (((arg ^ filp->f_flags) & FASYNC) && filp->f_op->fasync) {
 		error = filp->f_op->fasync(fd, filp, (arg & FASYNC) != 0);
 		if (error < 0)
 			goto out;
diff --git a/fs/file_table.c b/fs/file_table.c
index abdd15ad13c9..e61e5529fa9d 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -240,11 +240,11 @@ static void __fput(struct file *file)
 	locks_remove_flock(file);
 
 	if (unlikely(file->f_flags & FASYNC)) {
-		if (file->f_op && file->f_op->fasync)
+		if (file->f_op->fasync)
 			file->f_op->fasync(-1, file, 0);
 	}
 	ima_file_free(file);
-	if (file->f_op && file->f_op->release)
+	if (file->f_op->release)
 		file->f_op->release(inode, file);
 	security_file_free(file);
 	if (unlikely(S_ISCHR(inode->i_mode) && inode->i_cdev != NULL &&
diff --git a/fs/ioctl.c b/fs/ioctl.c
index fd507fb460f8..8ac3fad36192 100644
--- a/fs/ioctl.c
+++ b/fs/ioctl.c
@@ -37,7 +37,7 @@ static long vfs_ioctl(struct file *filp, unsigned int cmd,
 {
 	int error = -ENOTTY;
 
-	if (!filp->f_op || !filp->f_op->unlocked_ioctl)
+	if (!filp->f_op->unlocked_ioctl)
 		goto out;
 
 	error = filp->f_op->unlocked_ioctl(filp, cmd, arg);
@@ -501,7 +501,7 @@ static int ioctl_fioasync(unsigned int fd, struct file *filp,
 
 	/* Did FASYNC state change ? */
 	if ((flag ^ filp->f_flags) & FASYNC) {
-		if (filp->f_op && filp->f_op->fasync)
+		if (filp->f_op->fasync)
 			/* fasync() adjusts filp->f_flags */
 			error = filp->f_op->fasync(fd, filp, on);
 		else
diff --git a/fs/locks.c b/fs/locks.c
index b27a3005d78d..f155ffd648bb 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1579,7 +1579,7 @@ EXPORT_SYMBOL(generic_setlease);
 
 static int __vfs_setlease(struct file *filp, long arg, struct file_lock **lease)
 {
-	if (filp->f_op && filp->f_op->setlease)
+	if (filp->f_op->setlease)
 		return filp->f_op->setlease(filp, arg, lease);
 	else
 		return generic_setlease(filp, arg, lease);
@@ -1771,7 +1771,7 @@ SYSCALL_DEFINE2(flock, unsigned int, fd, unsigned int, cmd)
 	if (error)
 		goto out_free;
 
-	if (f.file->f_op && f.file->f_op->flock)
+	if (f.file->f_op->flock)
 		error = f.file->f_op->flock(f.file,
 					  (can_sleep) ? F_SETLKW : F_SETLK,
 					  lock);
@@ -1797,7 +1797,7 @@ SYSCALL_DEFINE2(flock, unsigned int, fd, unsigned int, cmd)
  */
 int vfs_test_lock(struct file *filp, struct file_lock *fl)
 {
-	if (filp->f_op && filp->f_op->lock)
+	if (filp->f_op->lock)
 		return filp->f_op->lock(filp, F_GETLK, fl);
 	posix_test_lock(filp, fl);
 	return 0;
@@ -1909,7 +1909,7 @@ out:
  */
 int vfs_lock_file(struct file *filp, unsigned int cmd, struct file_lock *fl, struct file_lock *conf)
 {
-	if (filp->f_op && filp->f_op->lock)
+	if (filp->f_op->lock)
 		return filp->f_op->lock(filp, cmd, fl);
 	else
 		return posix_lock_file(filp, fl, conf);
@@ -2182,7 +2182,7 @@ void locks_remove_flock(struct file *filp)
 	if (!inode->i_flock)
 		return;
 
-	if (filp->f_op && filp->f_op->flock) {
+	if (filp->f_op->flock) {
 		struct file_lock fl = {
 			.fl_pid = current->tgid,
 			.fl_file = filp,
@@ -2246,7 +2246,7 @@ EXPORT_SYMBOL(posix_unblock_lock);
  */
 int vfs_cancel_lock(struct file *filp, struct file_lock *fl)
 {
-	if (filp->f_op && filp->f_op->lock)
+	if (filp->f_op->lock)
 		return filp->f_op->lock(filp, F_CANCELLK, fl);
 	return 0;
 }
diff --git a/fs/open.c b/fs/open.c
index d420331ca32a..a1465b1ec8c7 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -693,6 +693,10 @@ static int do_dentry_open(struct file *f,
 	}
 
 	f->f_op = fops_get(inode->i_fop);
+	if (unlikely(WARN_ON(!f->f_op))) {
+		error = -ENODEV;
+		goto cleanup_all;
+	}
 
 	error = security_file_open(f, cred);
 	if (error)
@@ -702,7 +706,7 @@ static int do_dentry_open(struct file *f,
 	if (error)
 		goto cleanup_all;
 
-	if (!open && f->f_op)
+	if (!open)
 		open = f->f_op->open;
 	if (open) {
 		error = open(inode, f);
@@ -1023,7 +1027,7 @@ int filp_close(struct file *filp, fl_owner_t id)
 		return 0;
 	}
 
-	if (filp->f_op && filp->f_op->flush)
+	if (filp->f_op->flush)
 		retval = filp->f_op->flush(filp, id);
 
 	if (likely(!(filp->f_mode & FMODE_PATH))) {
diff --git a/fs/read_write.c b/fs/read_write.c
index e3cd280b158c..58e440df1bc6 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -257,7 +257,7 @@ loff_t vfs_llseek(struct file *file, loff_t offset, int whence)
 
 	fn = no_llseek;
 	if (file->f_mode & FMODE_LSEEK) {
-		if (file->f_op && file->f_op->llseek)
+		if (file->f_op->llseek)
 			fn = file->f_op->llseek;
 	}
 	return fn(file, offset, whence);
@@ -384,7 +384,7 @@ ssize_t vfs_read(struct file *file, char __user *buf, size_t count, loff_t *pos)
 
 	if (!(file->f_mode & FMODE_READ))
 		return -EBADF;
-	if (!file->f_op || (!file->f_op->read && !file->f_op->aio_read))
+	if (!file->f_op->read && !file->f_op->aio_read)
 		return -EINVAL;
 	if (unlikely(!access_ok(VERIFY_WRITE, buf, count)))
 		return -EFAULT;
@@ -433,7 +433,7 @@ ssize_t __kernel_write(struct file *file, const char *buf, size_t count, loff_t
 	const char __user *p;
 	ssize_t ret;
 
-	if (!file->f_op || (!file->f_op->write && !file->f_op->aio_write))
+	if (!file->f_op->write && !file->f_op->aio_write)
 		return -EINVAL;
 
 	old_fs = get_fs();
@@ -460,7 +460,7 @@ ssize_t vfs_write(struct file *file, const char __user *buf, size_t count, loff_
 
 	if (!(file->f_mode & FMODE_WRITE))
 		return -EBADF;
-	if (!file->f_op || (!file->f_op->write && !file->f_op->aio_write))
+	if (!file->f_op->write && !file->f_op->aio_write)
 		return -EINVAL;
 	if (unlikely(!access_ok(VERIFY_READ, buf, count)))
 		return -EFAULT;
@@ -727,11 +727,6 @@ static ssize_t do_readv_writev(int type, struct file *file,
 	io_fn_t fn;
 	iov_fn_t fnv;
 
-	if (!file->f_op) {
-		ret = -EINVAL;
-		goto out;
-	}
-
 	ret = rw_copy_check_uvector(type, uvector, nr_segs,
 				    ARRAY_SIZE(iovstack), iovstack, &iov);
 	if (ret <= 0)
@@ -778,7 +773,7 @@ ssize_t vfs_readv(struct file *file, const struct iovec __user *vec,
 {
 	if (!(file->f_mode & FMODE_READ))
 		return -EBADF;
-	if (!file->f_op || (!file->f_op->aio_read && !file->f_op->read))
+	if (!file->f_op->aio_read && !file->f_op->read)
 		return -EINVAL;
 
 	return do_readv_writev(READ, file, vec, vlen, pos);
@@ -791,7 +786,7 @@ ssize_t vfs_writev(struct file *file, const struct iovec __user *vec,
 {
 	if (!(file->f_mode & FMODE_WRITE))
 		return -EBADF;
-	if (!file->f_op || (!file->f_op->aio_write && !file->f_op->write))
+	if (!file->f_op->aio_write && !file->f_op->write)
 		return -EINVAL;
 
 	return do_readv_writev(WRITE, file, vec, vlen, pos);
@@ -906,10 +901,6 @@ static ssize_t compat_do_readv_writev(int type, struct file *file,
 	io_fn_t fn;
 	iov_fn_t fnv;
 
-	ret = -EINVAL;
-	if (!file->f_op)
-		goto out;
-
 	ret = -EFAULT;
 	if (!access_ok(VERIFY_READ, uvector, nr_segs*sizeof(*uvector)))
 		goto out;
@@ -965,7 +956,7 @@ static size_t compat_readv(struct file *file,
 		goto out;
 
 	ret = -EINVAL;
-	if (!file->f_op || (!file->f_op->aio_read && !file->f_op->read))
+	if (!file->f_op->aio_read && !file->f_op->read)
 		goto out;
 
 	ret = compat_do_readv_writev(READ, file, vec, vlen, pos);
@@ -1032,7 +1023,7 @@ static size_t compat_writev(struct file *file,
 		goto out;
 
 	ret = -EINVAL;
-	if (!file->f_op || (!file->f_op->aio_write && !file->f_op->write))
+	if (!file->f_op->aio_write && !file->f_op->write)
 		goto out;
 
 	ret = compat_do_readv_writev(WRITE, file, vec, vlen, pos);
diff --git a/fs/readdir.c b/fs/readdir.c
index 93d71e574310..5b53d995cae6 100644
--- a/fs/readdir.c
+++ b/fs/readdir.c
@@ -24,7 +24,7 @@ int iterate_dir(struct file *file, struct dir_context *ctx)
 {
 	struct inode *inode = file_inode(file);
 	int res = -ENOTDIR;
-	if (!file->f_op || !file->f_op->iterate)
+	if (!file->f_op->iterate)
 		goto out;
 
 	res = security_file_permission(file, MAY_READ);
diff --git a/fs/select.c b/fs/select.c
index 35d4adc749d9..55278a36a658 100644
--- a/fs/select.c
+++ b/fs/select.c
@@ -455,7 +455,7 @@ int do_select(int n, fd_set_bits *fds, struct timespec *end_time)
 					const struct file_operations *f_op;
 					f_op = f.file->f_op;
 					mask = DEFAULT_POLLMASK;
-					if (f_op && f_op->poll) {
+					if (f_op->poll) {
 						wait_key_set(wait, in, out,
 							     bit, busy_flag);
 						mask = (*f_op->poll)(f.file, wait);
@@ -762,7 +762,7 @@ static inline unsigned int do_pollfd(struct pollfd *pollfd, poll_table *pwait,
 		mask = POLLNVAL;
 		if (f.file) {
 			mask = DEFAULT_POLLMASK;
-			if (f.file->f_op && f.file->f_op->poll) {
+			if (f.file->f_op->poll) {
 				pwait->_key = pollfd->events|POLLERR|POLLHUP;
 				pwait->_key |= busy_flag;
 				mask = f.file->f_op->poll(f.file, pwait);
diff --git a/fs/splice.c b/fs/splice.c
index 3b7ee656f3aa..46a08f772d7d 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -695,7 +695,7 @@ static int pipe_to_sendpage(struct pipe_inode_info *pipe,
 	loff_t pos = sd->pos;
 	int more;
 
-	if (!likely(file->f_op && file->f_op->sendpage))
+	if (!likely(file->f_op->sendpage))
 		return -EINVAL;
 
 	more = (sd->flags & SPLICE_F_MORE) ? MSG_MORE : 0;
@@ -1099,7 +1099,7 @@ static long do_splice_from(struct pipe_inode_info *pipe, struct file *out,
 	ssize_t (*splice_write)(struct pipe_inode_info *, struct file *,
 				loff_t *, size_t, unsigned int);
 
-	if (out->f_op && out->f_op->splice_write)
+	if (out->f_op->splice_write)
 		splice_write = out->f_op->splice_write;
 	else
 		splice_write = default_file_splice_write;
@@ -1125,7 +1125,7 @@ static long do_splice_to(struct file *in, loff_t *ppos,
 	if (unlikely(ret < 0))
 		return ret;
 
-	if (in->f_op && in->f_op->splice_read)
+	if (in->f_op->splice_read)
 		splice_read = in->f_op->splice_read;
 	else
 		splice_read = default_file_splice_read;
diff --git a/fs/sync.c b/fs/sync.c
index 905f3f6b3d85..6c0ca3b75758 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -177,7 +177,7 @@ SYSCALL_DEFINE1(syncfs, int, fd)
  */
 int vfs_fsync_range(struct file *file, loff_t start, loff_t end, int datasync)
 {
-	if (!file->f_op || !file->f_op->fsync)
+	if (!file->f_op->fsync)
 		return -EINVAL;
 	return file->f_op->fsync(file, start, end, datasync);
 }
diff --git a/mm/memory.c b/mm/memory.c
index ca0003947115..e2bbba42604c 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -681,7 +681,7 @@ static void print_bad_pte(struct vm_area_struct *vma, unsigned long addr,
 	if (vma->vm_ops)
 		printk(KERN_ALERT "vma->vm_ops->fault: %pSR\n",
 		       vma->vm_ops->fault);
-	if (vma->vm_file && vma->vm_file->f_op)
+	if (vma->vm_file)
 		printk(KERN_ALERT "vma->vm_file->f_op->mmap: %pSR\n",
 		       vma->vm_file->f_op->mmap);
 	dump_stack();
diff --git a/mm/mmap.c b/mm/mmap.c
index 9d548512ff8a..ab199dfc9e26 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1299,7 +1299,7 @@ unsigned long do_mmap_pgoff(struct file *file, unsigned long addr,
 				vm_flags &= ~VM_MAYEXEC;
 			}
 
-			if (!file->f_op || !file->f_op->mmap)
+			if (!file->f_op->mmap)
 				return -ENODEV;
 			if (vm_flags & (VM_GROWSDOWN|VM_GROWSUP))
 				return -EINVAL;
@@ -1951,7 +1951,7 @@ get_unmapped_area(struct file *file, unsigned long addr, unsigned long len,
 		return -ENOMEM;
 
 	get_area = current->mm->get_unmapped_area;
-	if (file && file->f_op && file->f_op->get_unmapped_area)
+	if (file && file->f_op->get_unmapped_area)
 		get_area = file->f_op->get_unmapped_area;
 	addr = get_area(file, addr, len, pgoff, flags);
 	if (IS_ERR_VALUE(addr))
diff --git a/mm/nommu.c b/mm/nommu.c
index ecd1f158548e..9e6cb02cba64 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -937,7 +937,7 @@ static int validate_mmap_request(struct file *file,
 		struct address_space *mapping;
 
 		/* files must support mmap */
-		if (!file->f_op || !file->f_op->mmap)
+		if (!file->f_op->mmap)
 			return -ENODEV;
 
 		/* work out if what we've got could possibly be shared
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index 3ffda1b3799b..9321a7763067 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -244,10 +244,10 @@ p9_fd_poll(struct p9_client *client, struct poll_table_struct *pt)
 	if (!ts)
 		return -EREMOTEIO;
 
-	if (!ts->rd->f_op || !ts->rd->f_op->poll)
+	if (!ts->rd->f_op->poll)
 		return -EIO;
 
-	if (!ts->wr->f_op || !ts->wr->f_op->poll)
+	if (!ts->wr->f_op->poll)
 		return -EIO;
 
 	ret = ts->rd->f_op->poll(ts->rd, pt);
-- 
cgit 


From 59aa0da8e232f990be793d0ea23ca74675b236b3 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 16 Sep 2013 21:34:53 -0400
Subject: initialize namespace_sem statically

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/namespace.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index 5918fc31a636..827aea4c3242 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -39,7 +39,7 @@ static int mnt_group_start = 1;
 static struct list_head *mount_hashtable __read_mostly;
 static struct list_head *mountpoint_hashtable __read_mostly;
 static struct kmem_cache *mnt_cache __read_mostly;
-static struct rw_semaphore namespace_sem;
+static DECLARE_RWSEM(namespace_sem);
 
 /* /sys/fs */
 struct kobject *fs_kobj;
@@ -2767,8 +2767,6 @@ void __init mnt_init(void)
 	unsigned u;
 	int err;
 
-	init_rwsem(&namespace_sem);
-
 	mnt_cache = kmem_cache_create("mnt_cache", sizeof(struct mount),
 			0, SLAB_HWCACHE_ALIGN | SLAB_PANIC, NULL);
 
-- 
cgit 


From 44bb4385ce1cfb231d37cbc7bb6faf70f98b7b17 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 16 Sep 2013 21:37:36 -0400
Subject: fs_is_visible only needs namespace_sem held shared

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/namespace.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index 827aea4c3242..0e54ad6ccd8a 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2869,7 +2869,7 @@ bool fs_fully_visible(struct file_system_type *type)
 	if (unlikely(!ns))
 		return false;
 
-	namespace_lock();
+	down_read(&namespace_sem);
 	list_for_each_entry(mnt, &ns->list, mnt_list) {
 		struct mount *child;
 		if (mnt->mnt.mnt_sb->s_type != type)
@@ -2890,7 +2890,7 @@ bool fs_fully_visible(struct file_system_type *type)
 	next:	;
 	}
 found:
-	namespace_unlock();
+	up_read(&namespace_sem);
 	return visible;
 }
 
-- 
cgit 


From aa7a574d0c54cc5a0aceb7357b5097342c0844ee Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 16 Sep 2013 22:22:16 -0400
Subject: dup_mnt_ns(): get rid of pointless grabbing of vfsmount_lock

mnt_list is protected by namespace_sem, not vfsmount_lock

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/namespace.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index 0e54ad6ccd8a..17ff1470b405 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2444,9 +2444,7 @@ static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns,
 		return ERR_CAST(new);
 	}
 	new_ns->root = new;
-	br_write_lock(&vfsmount_lock);
 	list_add_tail(&new_ns->list, &new->mnt_list);
-	br_write_unlock(&vfsmount_lock);
 
 	/*
 	 * Second pass: switch the tsk->fs->* elements and mark new vfsmounts
-- 
cgit 


From 6339dab869e07a81abd22970696dde6febee094a Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 16 Sep 2013 22:41:01 -0400
Subject: do_remount(): pull touch_mnt_namespace() up

... and don't bother with dropping and regaining vfsmount_lock

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/namespace.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index 17ff1470b405..3ee6e59ead55 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1849,14 +1849,10 @@ static int do_remount(struct path *path, int flags, int mnt_flags,
 		br_write_lock(&vfsmount_lock);
 		mnt_flags |= mnt->mnt.mnt_flags & MNT_PROPAGATION_MASK;
 		mnt->mnt.mnt_flags = mnt_flags;
-		br_write_unlock(&vfsmount_lock);
-	}
-	up_write(&sb->s_umount);
-	if (!err) {
-		br_write_lock(&vfsmount_lock);
 		touch_mnt_namespace(mnt->mnt_ns);
 		br_write_unlock(&vfsmount_lock);
 	}
+	up_write(&sb->s_umount);
 	return err;
 }
 
-- 
cgit 


From 649a795affac8507657a72e761ce987d6967016b Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 28 Sep 2013 12:41:25 -0400
Subject: fold mntfree() into mntput_no_expire()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/namespace.c | 39 ++++++++++++++++-----------------------
 1 file changed, 16 insertions(+), 23 deletions(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index 3ee6e59ead55..691cd7c83275 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -872,28 +872,6 @@ static struct mount *clone_mnt(struct mount *old, struct dentry *root,
 	return ERR_PTR(err);
 }
 
-static inline void mntfree(struct mount *mnt)
-{
-	struct vfsmount *m = &mnt->mnt;
-	struct super_block *sb = m->mnt_sb;
-
-	/*
-	 * This probably indicates that somebody messed
-	 * up a mnt_want/drop_write() pair.  If this
-	 * happens, the filesystem was probably unable
-	 * to make r/w->r/o transitions.
-	 */
-	/*
-	 * The locking used to deal with mnt_count decrement provides barriers,
-	 * so mnt_get_writers() below is safe.
-	 */
-	WARN_ON(mnt_get_writers(mnt));
-	fsnotify_vfsmount_delete(m);
-	dput(m->mnt_root);
-	free_vfsmnt(mnt);
-	deactivate_super(sb);
-}
-
 static void mntput_no_expire(struct mount *mnt)
 {
 put_again:
@@ -929,7 +907,22 @@ put_again:
 
 	list_del(&mnt->mnt_instance);
 	br_write_unlock(&vfsmount_lock);
-	mntfree(mnt);
+
+	/*
+	 * This probably indicates that somebody messed
+	 * up a mnt_want/drop_write() pair.  If this
+	 * happens, the filesystem was probably unable
+	 * to make r/w->r/o transitions.
+	 */
+	/*
+	 * The locking used to deal with mnt_count decrement provides barriers,
+	 * so mnt_get_writers() below is safe.
+	 */
+	WARN_ON(mnt_get_writers(mnt));
+	fsnotify_vfsmount_delete(&mnt->mnt);
+	dput(mnt->mnt.mnt_root);
+	deactivate_super(mnt->mnt.mnt_sb);
+	free_vfsmnt(mnt);
 }
 
 void mntput(struct vfsmount *mnt)
-- 
cgit 


From 085e83ff0c26842e6b14cd4b471625f6dd8a7bfd Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 28 Sep 2013 12:54:06 -0400
Subject: fs/namespace.c: bury long-dead define

MNT_WRITER_UNDERFLOW_LIMIT has been missed 4 years ago when it became unused.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/namespace.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index 691cd7c83275..cd7dbabf0c6c 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -63,8 +63,6 @@ static inline unsigned long hash(struct vfsmount *mnt, struct dentry *dentry)
 	return tmp & (HASH_SIZE - 1);
 }
 
-#define MNT_WRITER_UNDERFLOW_LIMIT -(1<<16)
-
 /*
  * allocation is serialized by namespace_sem, but we need the spinlock to
  * serialize with freeing.
-- 
cgit 


From 22a7919299c58b768fa86200e5ac651d3e33a37f Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 28 Sep 2013 20:29:00 -0400
Subject: finish_automount() doesn't need vfsmount_lock for removal from expiry
 list

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/namespace.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index cd7dbabf0c6c..f57117d9f0ee 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2064,9 +2064,7 @@ fail:
 	/* remove m from any expiration list it may be on */
 	if (!list_empty(&mnt->mnt_expire)) {
 		namespace_lock();
-		br_write_lock(&vfsmount_lock);
 		list_del_init(&mnt->mnt_expire);
-		br_write_unlock(&vfsmount_lock);
 		namespace_unlock();
 	}
 	mntput(m);
-- 
cgit 


From f6b742d8697ae0aeacb025e6e0ab3c61a6918846 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 28 Sep 2013 20:30:00 -0400
Subject: mnt_set_expiry() doesn't need vfsmount_lock

->mnt_expire is protected by namespace_sem

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/namespace.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index f57117d9f0ee..e45503d62fed 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2080,11 +2080,9 @@ fail:
 void mnt_set_expiry(struct vfsmount *mnt, struct list_head *expiry_list)
 {
 	namespace_lock();
-	br_write_lock(&vfsmount_lock);
 
 	list_add_tail(&real_mount(mnt)->mnt_expire, expiry_list);
 
-	br_write_unlock(&vfsmount_lock);
 	namespace_unlock();
 }
 EXPORT_SYMBOL(mnt_set_expiry);
-- 
cgit 


From 9559f68915024ece8be3781003f25aef3677e574 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 28 Sep 2013 20:47:57 -0400
Subject: fold dup_mnt_ns() into its only surviving caller

should've been done 6 years ago...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/namespace.c | 48 ++++++++++++++++++------------------------------
 1 file changed, 18 insertions(+), 30 deletions(-)

diff --git a/fs/namespace.c b/fs/namespace.c
index e45503d62fed..c8d214ce30c6 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2397,20 +2397,25 @@ static struct mnt_namespace *alloc_mnt_ns(struct user_namespace *user_ns)
 	return new_ns;
 }
 
-/*
- * Allocate a new namespace structure and populate it with contents
- * copied from the namespace of the passed in task structure.
- */
-static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns,
-		struct user_namespace *user_ns, struct fs_struct *fs)
+struct mnt_namespace *copy_mnt_ns(unsigned long flags, struct mnt_namespace *ns,
+		struct user_namespace *user_ns, struct fs_struct *new_fs)
 {
 	struct mnt_namespace *new_ns;
 	struct vfsmount *rootmnt = NULL, *pwdmnt = NULL;
 	struct mount *p, *q;
-	struct mount *old = mnt_ns->root;
+	struct mount *old;
 	struct mount *new;
 	int copy_flags;
 
+	BUG_ON(!ns);
+
+	if (likely(!(flags & CLONE_NEWNS))) {
+		get_mnt_ns(ns);
+		return ns;
+	}
+
+	old = ns->root;
+
 	new_ns = alloc_mnt_ns(user_ns);
 	if (IS_ERR(new_ns))
 		return new_ns;
@@ -2418,7 +2423,7 @@ static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns,
 	namespace_lock();
 	/* First pass: copy the tree topology */
 	copy_flags = CL_COPY_UNBINDABLE | CL_EXPIRE;
-	if (user_ns != mnt_ns->user_ns)
+	if (user_ns != ns->user_ns)
 		copy_flags |= CL_SHARED_TO_SLAVE | CL_UNPRIVILEGED;
 	new = copy_tree(old, old->mnt.mnt_root, copy_flags);
 	if (IS_ERR(new)) {
@@ -2438,13 +2443,13 @@ static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns,
 	q = new;
 	while (p) {
 		q->mnt_ns = new_ns;
-		if (fs) {
-			if (&p->mnt == fs->root.mnt) {
-				fs->root.mnt = mntget(&q->mnt);
+		if (new_fs) {
+			if (&p->mnt == new_fs->root.mnt) {
+				new_fs->root.mnt = mntget(&q->mnt);
 				rootmnt = &p->mnt;
 			}
-			if (&p->mnt == fs->pwd.mnt) {
-				fs->pwd.mnt = mntget(&q->mnt);
+			if (&p->mnt == new_fs->pwd.mnt) {
+				new_fs->pwd.mnt = mntget(&q->mnt);
 				pwdmnt = &p->mnt;
 			}
 		}
@@ -2465,23 +2470,6 @@ static struct mnt_namespace *dup_mnt_ns(struct mnt_namespace *mnt_ns,
 	return new_ns;
 }
 
-struct mnt_namespace *copy_mnt_ns(unsigned long flags, struct mnt_namespace *ns,
-		struct user_namespace *user_ns, struct fs_struct *new_fs)
-{
-	struct mnt_namespace *new_ns;
-
-	BUG_ON(!ns);
-	get_mnt_ns(ns);
-
-	if (!(flags & CLONE_NEWNS))
-		return ns;
-
-	new_ns = dup_mnt_ns(ns, user_ns, new_fs);
-
-	put_mnt_ns(ns);
-	return new_ns;
-}
-
 /**
  * create_mnt_ns - creates a private namespace and adds a root filesystem
  * @mnt: pointer to the new root filesystem mountpoint
-- 
cgit 


From aba809cf0944fdc5a83ef8b5864cdce2a99b2513 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 28 Sep 2013 23:10:55 -0400
Subject: namespace.c: get rid of mnt_ghosts

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/mount.h     |  2 +-
 fs/namespace.c | 22 +++++++---------------
 fs/pnode.c     |  3 +--
 3 files changed, 9 insertions(+), 18 deletions(-)

diff --git a/fs/mount.h b/fs/mount.h
index 64a858143ff9..3168dc41bad5 100644
--- a/fs/mount.h
+++ b/fs/mount.h
@@ -55,7 +55,7 @@ struct mount {
 	int mnt_group_id;		/* peer group identifier */
 	int mnt_expiry_mark;		/* true if marked for expiry */
 	int mnt_pinned;
-	int mnt_ghosts;
+	struct path mnt_ex_mountpoint;
 };
 
 #define MNT_NS_INTERNAL ERR_PTR(-EINVAL) /* distinct from any mnt_namespace */
diff --git a/fs/namespace.c b/fs/namespace.c
index c8d214ce30c6..846ea43ab0c6 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -1136,20 +1136,8 @@ static void namespace_unlock(void)
 	while (!list_empty(&head)) {
 		mnt = list_first_entry(&head, struct mount, mnt_hash);
 		list_del_init(&mnt->mnt_hash);
-		if (mnt_has_parent(mnt)) {
-			struct dentry *dentry;
-			struct mount *m;
-
-			br_write_lock(&vfsmount_lock);
-			dentry = mnt->mnt_mountpoint;
-			m = mnt->mnt_parent;
-			mnt->mnt_mountpoint = mnt->mnt.mnt_root;
-			mnt->mnt_parent = mnt;
-			m->mnt_ghosts--;
-			br_write_unlock(&vfsmount_lock);
-			dput(dentry);
-			mntput(&m->mnt);
-		}
+		if (mnt->mnt_ex_mountpoint.mnt)
+			path_put(&mnt->mnt_ex_mountpoint);
 		mntput(&mnt->mnt);
 	}
 }
@@ -1181,8 +1169,12 @@ void umount_tree(struct mount *mnt, int propagate)
 		p->mnt_ns = NULL;
 		list_del_init(&p->mnt_child);
 		if (mnt_has_parent(p)) {
-			p->mnt_parent->mnt_ghosts++;
 			put_mountpoint(p->mnt_mp);
+			/* move the reference to mountpoint into ->mnt_ex_mountpoint */
+			p->mnt_ex_mountpoint.dentry = p->mnt_mountpoint;
+			p->mnt_ex_mountpoint.mnt = &p->mnt_parent->mnt;
+			p->mnt_mountpoint = p->mnt.mnt_root;
+			p->mnt_parent = p;
 			p->mnt_mp = NULL;
 		}
 		change_mnt_propagation(p, MS_PRIVATE);
diff --git a/fs/pnode.c b/fs/pnode.c
index 9af0df15256e..3cfd48cf887e 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -278,8 +278,7 @@ out:
  */
 static inline int do_refcount_check(struct mount *mnt, int count)
 {
-	int mycount = mnt_get_count(mnt) - mnt->mnt_ghosts;
-	return (mycount > count);
+	return mnt_get_count(mnt) > count;
 }
 
 /*
-- 
cgit 


From aab407fc5c0ce63e9fd4a34a790d7290d3e116a1 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 29 Sep 2013 10:59:59 -0400
Subject: don't bother with vfsmount_lock in mounts_poll()

wake_up_interruptible/poll_wait provide sufficient barriers;
just use ACCESS_ONCE() to fetch ns->event and that's it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/proc_namespace.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/proc_namespace.c b/fs/proc_namespace.c
index 5fe34c355e85..439406e081af 100644
--- a/fs/proc_namespace.c
+++ b/fs/proc_namespace.c
@@ -20,15 +20,15 @@ static unsigned mounts_poll(struct file *file, poll_table *wait)
 	struct proc_mounts *p = proc_mounts(file->private_data);
 	struct mnt_namespace *ns = p->ns;
 	unsigned res = POLLIN | POLLRDNORM;
+	int event;
 
 	poll_wait(file, &p->ns->poll, wait);
 
-	br_read_lock(&vfsmount_lock);
-	if (p->m.poll_event != ns->event) {
-		p->m.poll_event = ns->event;
+	event = ACCESS_ONCE(ns->event);
+	if (p->m.poll_event != event) {
+		p->m.poll_event = event;
 		res |= POLLERR | POLLPRI;
 	}
-	br_read_unlock(&vfsmount_lock);
 
 	return res;
 }
-- 
cgit 


From 719ea2fbb553ab3f61a174a4b5861289dcc46cb1 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 29 Sep 2013 11:24:49 -0400
Subject: new helpers: lock_mount_hash/unlock_mount_hash

aka br_write_{lock,unlock} of vfsmount_lock.  Inlines in fs/mount.h,
vfsmount_lock extern moved over there as well.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/fs-writeback.c |  1 +
 fs/internal.h     |  4 ---
 fs/mount.h        | 13 ++++++++
 fs/namespace.c    | 96 +++++++++++++++++++++++++++----------------------------
 fs/pnode.c        |  4 +--
 5 files changed, 64 insertions(+), 54 deletions(-)

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 9f4935b8f208..09c11329a17c 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -26,6 +26,7 @@
 #include <linux/blkdev.h>
 #include <linux/backing-dev.h>
 #include <linux/tracepoint.h>
+#include <linux/device.h>
 #include "internal.h"
 
 /*
diff --git a/fs/internal.h b/fs/internal.h
index 513e0d859a6c..4a11e75ce14d 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -9,8 +9,6 @@
  * 2 of the License, or (at your option) any later version.
  */
 
-#include <linux/lglock.h>
-
 struct super_block;
 struct file_system_type;
 struct linux_binprm;
@@ -62,8 +60,6 @@ extern int sb_prepare_remount_readonly(struct super_block *);
 
 extern void __init mnt_init(void);
 
-extern struct lglock vfsmount_lock;
-
 extern int __mnt_want_write(struct vfsmount *);
 extern int __mnt_want_write_file(struct file *);
 extern void __mnt_drop_write(struct vfsmount *);
diff --git a/fs/mount.h b/fs/mount.h
index 3168dc41bad5..7076f25af35d 100644
--- a/fs/mount.h
+++ b/fs/mount.h
@@ -1,6 +1,7 @@
 #include <linux/mount.h>
 #include <linux/seq_file.h>
 #include <linux/poll.h>
+#include <linux/lglock.h>
 
 struct mnt_namespace {
 	atomic_t		count;
@@ -83,6 +84,18 @@ static inline void get_mnt_ns(struct mnt_namespace *ns)
 	atomic_inc(&ns->count);
 }
 
+extern struct lglock vfsmount_lock;
+
+static inline void lock_mount_hash(void)
+{
+	br_write_lock(&vfsmount_lock);
+}
+
+static inline void unlock_mount_hash(void)
+{
+	br_write_unlock(&vfsmount_lock);
+}
+
 struct proc_mounts {
 	struct seq_file m;
 	struct mnt_namespace *ns;
diff --git a/fs/namespace.c b/fs/namespace.c
index 846ea43ab0c6..5cbe8cefadb5 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -456,7 +456,7 @@ static int mnt_make_readonly(struct mount *mnt)
 {
 	int ret = 0;
 
-	br_write_lock(&vfsmount_lock);
+	lock_mount_hash();
 	mnt->mnt.mnt_flags |= MNT_WRITE_HOLD;
 	/*
 	 * After storing MNT_WRITE_HOLD, we'll read the counters. This store
@@ -490,15 +490,15 @@ static int mnt_make_readonly(struct mount *mnt)
 	 */
 	smp_wmb();
 	mnt->mnt.mnt_flags &= ~MNT_WRITE_HOLD;
-	br_write_unlock(&vfsmount_lock);
+	unlock_mount_hash();
 	return ret;
 }
 
 static void __mnt_unmake_readonly(struct mount *mnt)
 {
-	br_write_lock(&vfsmount_lock);
+	lock_mount_hash();
 	mnt->mnt.mnt_flags &= ~MNT_READONLY;
-	br_write_unlock(&vfsmount_lock);
+	unlock_mount_hash();
 }
 
 int sb_prepare_remount_readonly(struct super_block *sb)
@@ -510,7 +510,7 @@ int sb_prepare_remount_readonly(struct super_block *sb)
 	if (atomic_long_read(&sb->s_remove_count))
 		return -EBUSY;
 
-	br_write_lock(&vfsmount_lock);
+	lock_mount_hash();
 	list_for_each_entry(mnt, &sb->s_mounts, mnt_instance) {
 		if (!(mnt->mnt.mnt_flags & MNT_READONLY)) {
 			mnt->mnt.mnt_flags |= MNT_WRITE_HOLD;
@@ -532,7 +532,7 @@ int sb_prepare_remount_readonly(struct super_block *sb)
 		if (mnt->mnt.mnt_flags & MNT_WRITE_HOLD)
 			mnt->mnt.mnt_flags &= ~MNT_WRITE_HOLD;
 	}
-	br_write_unlock(&vfsmount_lock);
+	unlock_mount_hash();
 
 	return err;
 }
@@ -794,9 +794,9 @@ vfs_kern_mount(struct file_system_type *type, int flags, const char *name, void
 	mnt->mnt.mnt_sb = root->d_sb;
 	mnt->mnt_mountpoint = mnt->mnt.mnt_root;
 	mnt->mnt_parent = mnt;
-	br_write_lock(&vfsmount_lock);
+	lock_mount_hash();
 	list_add_tail(&mnt->mnt_instance, &root->d_sb->s_mounts);
-	br_write_unlock(&vfsmount_lock);
+	unlock_mount_hash();
 	return &mnt->mnt;
 }
 EXPORT_SYMBOL_GPL(vfs_kern_mount);
@@ -837,9 +837,9 @@ static struct mount *clone_mnt(struct mount *old, struct dentry *root,
 	mnt->mnt.mnt_root = dget(root);
 	mnt->mnt_mountpoint = mnt->mnt.mnt_root;
 	mnt->mnt_parent = mnt;
-	br_write_lock(&vfsmount_lock);
+	lock_mount_hash();
 	list_add_tail(&mnt->mnt_instance, &sb->s_mounts);
-	br_write_unlock(&vfsmount_lock);
+	unlock_mount_hash();
 
 	if ((flag & CL_SLAVE) ||
 	    ((flag & CL_SHARED_TO_SLAVE) && IS_MNT_SHARED(old))) {
@@ -883,28 +883,28 @@ put_again:
 	}
 	br_read_unlock(&vfsmount_lock);
 
-	br_write_lock(&vfsmount_lock);
+	lock_mount_hash();
 	mnt_add_count(mnt, -1);
 	if (mnt_get_count(mnt)) {
-		br_write_unlock(&vfsmount_lock);
+		unlock_mount_hash();
 		return;
 	}
 #else
 	mnt_add_count(mnt, -1);
 	if (likely(mnt_get_count(mnt)))
 		return;
-	br_write_lock(&vfsmount_lock);
+	lock_mount_hash();
 #endif
 	if (unlikely(mnt->mnt_pinned)) {
 		mnt_add_count(mnt, mnt->mnt_pinned + 1);
 		mnt->mnt_pinned = 0;
-		br_write_unlock(&vfsmount_lock);
+		unlock_mount_hash();
 		acct_auto_close_mnt(&mnt->mnt);
 		goto put_again;
 	}
 
 	list_del(&mnt->mnt_instance);
-	br_write_unlock(&vfsmount_lock);
+	unlock_mount_hash();
 
 	/*
 	 * This probably indicates that somebody messed
@@ -945,21 +945,21 @@ EXPORT_SYMBOL(mntget);
 
 void mnt_pin(struct vfsmount *mnt)
 {
-	br_write_lock(&vfsmount_lock);
+	lock_mount_hash();
 	real_mount(mnt)->mnt_pinned++;
-	br_write_unlock(&vfsmount_lock);
+	unlock_mount_hash();
 }
 EXPORT_SYMBOL(mnt_pin);
 
 void mnt_unpin(struct vfsmount *m)
 {
 	struct mount *mnt = real_mount(m);
-	br_write_lock(&vfsmount_lock);
+	lock_mount_hash();
 	if (mnt->mnt_pinned) {
 		mnt_add_count(mnt, 1);
 		mnt->mnt_pinned--;
 	}
-	br_write_unlock(&vfsmount_lock);
+	unlock_mount_hash();
 }
 EXPORT_SYMBOL(mnt_unpin);
 
@@ -1076,12 +1076,12 @@ int may_umount_tree(struct vfsmount *m)
 	BUG_ON(!m);
 
 	/* write lock needed for mnt_get_count */
-	br_write_lock(&vfsmount_lock);
+	lock_mount_hash();
 	for (p = mnt; p; p = next_mnt(p, mnt)) {
 		actual_refs += mnt_get_count(p);
 		minimum_refs += 2;
 	}
-	br_write_unlock(&vfsmount_lock);
+	unlock_mount_hash();
 
 	if (actual_refs > minimum_refs)
 		return 0;
@@ -1108,10 +1108,10 @@ int may_umount(struct vfsmount *mnt)
 {
 	int ret = 1;
 	down_read(&namespace_sem);
-	br_write_lock(&vfsmount_lock);
+	lock_mount_hash();
 	if (propagate_mount_busy(real_mount(mnt), 2))
 		ret = 0;
-	br_write_unlock(&vfsmount_lock);
+	unlock_mount_hash();
 	up_read(&namespace_sem);
 	return ret;
 }
@@ -1208,12 +1208,12 @@ static int do_umount(struct mount *mnt, int flags)
 		 * probably don't strictly need the lock here if we examined
 		 * all race cases, but it's a slowpath.
 		 */
-		br_write_lock(&vfsmount_lock);
+		lock_mount_hash();
 		if (mnt_get_count(mnt) != 2) {
-			br_write_unlock(&vfsmount_lock);
+			unlock_mount_hash();
 			return -EBUSY;
 		}
-		br_write_unlock(&vfsmount_lock);
+		unlock_mount_hash();
 
 		if (!xchg(&mnt->mnt_expiry_mark, 1))
 			return -EAGAIN;
@@ -1255,7 +1255,7 @@ static int do_umount(struct mount *mnt, int flags)
 	}
 
 	namespace_lock();
-	br_write_lock(&vfsmount_lock);
+	lock_mount_hash();
 	event++;
 
 	if (!(flags & MNT_DETACH))
@@ -1267,7 +1267,7 @@ static int do_umount(struct mount *mnt, int flags)
 			umount_tree(mnt, 1);
 		retval = 0;
 	}
-	br_write_unlock(&vfsmount_lock);
+	unlock_mount_hash();
 	namespace_unlock();
 	return retval;
 }
@@ -1410,18 +1410,18 @@ struct mount *copy_tree(struct mount *mnt, struct dentry *dentry,
 			q = clone_mnt(p, p->mnt.mnt_root, flag);
 			if (IS_ERR(q))
 				goto out;
-			br_write_lock(&vfsmount_lock);
+			lock_mount_hash();
 			list_add_tail(&q->mnt_list, &res->mnt_list);
 			attach_mnt(q, parent, p->mnt_mp);
-			br_write_unlock(&vfsmount_lock);
+			unlock_mount_hash();
 		}
 	}
 	return res;
 out:
 	if (res) {
-		br_write_lock(&vfsmount_lock);
+		lock_mount_hash();
 		umount_tree(res, 0);
-		br_write_unlock(&vfsmount_lock);
+		unlock_mount_hash();
 	}
 	return q;
 }
@@ -1443,9 +1443,9 @@ struct vfsmount *collect_mounts(struct path *path)
 void drop_collected_mounts(struct vfsmount *mnt)
 {
 	namespace_lock();
-	br_write_lock(&vfsmount_lock);
+	lock_mount_hash();
 	umount_tree(real_mount(mnt), 0);
-	br_write_unlock(&vfsmount_lock);
+	unlock_mount_hash();
 	namespace_unlock();
 }
 
@@ -1572,7 +1572,7 @@ static int attach_recursive_mnt(struct mount *source_mnt,
 	if (err)
 		goto out_cleanup_ids;
 
-	br_write_lock(&vfsmount_lock);
+	lock_mount_hash();
 
 	if (IS_MNT_SHARED(dest_mnt)) {
 		for (p = source_mnt; p; p = next_mnt(p, source_mnt))
@@ -1591,7 +1591,7 @@ static int attach_recursive_mnt(struct mount *source_mnt,
 		list_del_init(&child->mnt_hash);
 		commit_tree(child);
 	}
-	br_write_unlock(&vfsmount_lock);
+	unlock_mount_hash();
 
 	return 0;
 
@@ -1693,10 +1693,10 @@ static int do_change_type(struct path *path, int flag)
 			goto out_unlock;
 	}
 
-	br_write_lock(&vfsmount_lock);
+	lock_mount_hash();
 	for (m = mnt; m; m = (recurse ? next_mnt(m, mnt) : NULL))
 		change_mnt_propagation(m, type);
-	br_write_unlock(&vfsmount_lock);
+	unlock_mount_hash();
 
  out_unlock:
 	namespace_unlock();
@@ -1768,9 +1768,9 @@ static int do_loopback(struct path *path, const char *old_name,
 
 	err = graft_tree(mnt, parent, mp);
 	if (err) {
-		br_write_lock(&vfsmount_lock);
+		lock_mount_hash();
 		umount_tree(mnt, 0);
-		br_write_unlock(&vfsmount_lock);
+		unlock_mount_hash();
 	}
 out2:
 	unlock_mount(mp);
@@ -1829,11 +1829,11 @@ static int do_remount(struct path *path, int flags, int mnt_flags,
 	else
 		err = do_remount_sb(sb, flags, data, 0);
 	if (!err) {
-		br_write_lock(&vfsmount_lock);
+		lock_mount_hash();
 		mnt_flags |= mnt->mnt.mnt_flags & MNT_PROPAGATION_MASK;
 		mnt->mnt.mnt_flags = mnt_flags;
 		touch_mnt_namespace(mnt->mnt_ns);
-		br_write_unlock(&vfsmount_lock);
+		unlock_mount_hash();
 	}
 	up_write(&sb->s_umount);
 	return err;
@@ -2093,7 +2093,7 @@ void mark_mounts_for_expiry(struct list_head *mounts)
 		return;
 
 	namespace_lock();
-	br_write_lock(&vfsmount_lock);
+	lock_mount_hash();
 
 	/* extract from the expiration list every vfsmount that matches the
 	 * following criteria:
@@ -2112,7 +2112,7 @@ void mark_mounts_for_expiry(struct list_head *mounts)
 		touch_mnt_namespace(mnt->mnt_ns);
 		umount_tree(mnt, 1);
 	}
-	br_write_unlock(&vfsmount_lock);
+	unlock_mount_hash();
 	namespace_unlock();
 }
 
@@ -2662,7 +2662,7 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root,
 	if (!is_path_reachable(old_mnt, old.dentry, &new))
 		goto out4;
 	root_mp->m_count++; /* pin it so it won't go away */
-	br_write_lock(&vfsmount_lock);
+	lock_mount_hash();
 	detach_mnt(new_mnt, &parent_path);
 	detach_mnt(root_mnt, &root_parent);
 	if (root_mnt->mnt.mnt_flags & MNT_LOCKED) {
@@ -2674,7 +2674,7 @@ SYSCALL_DEFINE2(pivot_root, const char __user *, new_root,
 	/* mount new_root on / */
 	attach_mnt(new_mnt, real_mount(root_parent.mnt), root_mp);
 	touch_mnt_namespace(current->nsproxy->mnt_ns);
-	br_write_unlock(&vfsmount_lock);
+	unlock_mount_hash();
 	chroot_fs_refs(&root, &new);
 	put_mountpoint(root_mp);
 	error = 0;
@@ -2784,9 +2784,9 @@ void kern_unmount(struct vfsmount *mnt)
 {
 	/* release long term mount so mount point can be released */
 	if (!IS_ERR_OR_NULL(mnt)) {
-		br_write_lock(&vfsmount_lock);
+		lock_mount_hash();
 		real_mount(mnt)->mnt_ns = NULL;
-		br_write_unlock(&vfsmount_lock);
+		unlock_mount_hash();
 		mntput(mnt);
 	}
 }
diff --git a/fs/pnode.c b/fs/pnode.c
index 3cfd48cf887e..58933fd149ad 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -264,12 +264,12 @@ int propagate_mnt(struct mount *dest_mnt, struct mountpoint *dest_mp,
 		prev_src_mnt  = child;
 	}
 out:
-	br_write_lock(&vfsmount_lock);
+	lock_mount_hash();
 	while (!list_empty(&tmp_list)) {
 		child = list_first_entry(&tmp_list, struct mount, mnt_hash);
 		umount_tree(child, 0);
 	}
-	br_write_unlock(&vfsmount_lock);
+	unlock_mount_hash();
 	return ret;
 }
 
-- 
cgit 


From 966c1f75f8e1e8e44d8277f7cc3598f6abbdda2f Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 29 Sep 2013 18:09:05 -0400
Subject: isofs: don't pass dentry to isofs_hash{i,}_common()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/isofs/inode.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index e5d408a7ea4a..4a9e10ea13f2 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -181,7 +181,7 @@ struct iso9660_options{
  * Compute the hash for the isofs name corresponding to the dentry.
  */
 static int
-isofs_hash_common(const struct dentry *dentry, struct qstr *qstr, int ms)
+isofs_hash_common(struct qstr *qstr, int ms)
 {
 	const char *name;
 	int len;
@@ -202,7 +202,7 @@ isofs_hash_common(const struct dentry *dentry, struct qstr *qstr, int ms)
  * Compute the hash for the isofs name corresponding to the dentry.
  */
 static int
-isofs_hashi_common(const struct dentry *dentry, struct qstr *qstr, int ms)
+isofs_hashi_common(struct qstr *qstr, int ms)
 {
 	const char *name;
 	int len;
@@ -259,13 +259,13 @@ static int isofs_dentry_cmp_common(
 static int
 isofs_hash(const struct dentry *dentry, struct qstr *qstr)
 {
-	return isofs_hash_common(dentry, qstr, 0);
+	return isofs_hash_common(qstr, 0);
 }
 
 static int
 isofs_hashi(const struct dentry *dentry, struct qstr *qstr)
 {
-	return isofs_hashi_common(dentry, qstr, 0);
+	return isofs_hashi_common(qstr, 0);
 }
 
 static int
@@ -286,13 +286,13 @@ isofs_dentry_cmpi(const struct dentry *parent, const struct dentry *dentry,
 static int
 isofs_hash_ms(const struct dentry *dentry, struct qstr *qstr)
 {
-	return isofs_hash_common(dentry, qstr, 1);
+	return isofs_hash_common(qstr, 1);
 }
 
 static int
 isofs_hashi_ms(const struct dentry *dentry, struct qstr *qstr)
 {
-	return isofs_hashi_common(dentry, qstr, 1);
+	return isofs_hashi_common(qstr, 1);
 }
 
 static int
-- 
cgit 


From 7eb5e8826911f2792179f99e77e75fbb7ef53a4a Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 1 Oct 2013 15:09:58 -0400
Subject: uninline destroy_super(), consolidate alloc_super()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/super.c | 206 ++++++++++++++++++++++++++-----------------------------------
 1 file changed, 86 insertions(+), 120 deletions(-)

diff --git a/fs/super.c b/fs/super.c
index 0225c20f8770..efa6e488a95c 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -129,33 +129,27 @@ static unsigned long super_cache_count(struct shrinker *shrink,
 	return total_objects;
 }
 
-static int init_sb_writers(struct super_block *s, struct file_system_type *type)
-{
-	int err;
-	int i;
-
-	for (i = 0; i < SB_FREEZE_LEVELS; i++) {
-		err = percpu_counter_init(&s->s_writers.counter[i], 0);
-		if (err < 0)
-			goto err_out;
-		lockdep_init_map(&s->s_writers.lock_map[i], sb_writers_name[i],
-				 &type->s_writers_key[i], 0);
-	}
-	init_waitqueue_head(&s->s_writers.wait);
-	init_waitqueue_head(&s->s_writers.wait_unfrozen);
-	return 0;
-err_out:
-	while (--i >= 0)
-		percpu_counter_destroy(&s->s_writers.counter[i]);
-	return err;
-}
-
-static void destroy_sb_writers(struct super_block *s)
+/**
+ *	destroy_super	-	frees a superblock
+ *	@s: superblock to free
+ *
+ *	Frees a superblock.
+ */
+static void destroy_super(struct super_block *s)
 {
 	int i;
-
+	list_lru_destroy(&s->s_dentry_lru);
+	list_lru_destroy(&s->s_inode_lru);
+#ifdef CONFIG_SMP
+	free_percpu(s->s_files);
+#endif
 	for (i = 0; i < SB_FREEZE_LEVELS; i++)
 		percpu_counter_destroy(&s->s_writers.counter[i]);
+	security_sb_free(s);
+	WARN_ON(!list_empty(&s->s_mounts));
+	kfree(s->s_subtype);
+	kfree(s->s_options);
+	kfree(s);
 }
 
 /**
@@ -170,111 +164,83 @@ static struct super_block *alloc_super(struct file_system_type *type, int flags)
 {
 	struct super_block *s = kzalloc(sizeof(struct super_block),  GFP_USER);
 	static const struct super_operations default_op;
+	int i;
+
+	if (!s)
+		return NULL;
 
-	if (s) {
-		if (security_sb_alloc(s))
-			goto out_free_sb;
+	if (security_sb_alloc(s))
+		goto fail;
 
 #ifdef CONFIG_SMP
-		s->s_files = alloc_percpu(struct list_head);
-		if (!s->s_files)
-			goto err_out;
-		else {
-			int i;
-
-			for_each_possible_cpu(i)
-				INIT_LIST_HEAD(per_cpu_ptr(s->s_files, i));
-		}
+	s->s_files = alloc_percpu(struct list_head);
+	if (!s->s_files)
+		goto fail;
+	for_each_possible_cpu(i)
+		INIT_LIST_HEAD(per_cpu_ptr(s->s_files, i));
 #else
-		INIT_LIST_HEAD(&s->s_files);
+	INIT_LIST_HEAD(&s->s_files);
 #endif
-		if (init_sb_writers(s, type))
-			goto err_out;
-		s->s_flags = flags;
-		s->s_bdi = &default_backing_dev_info;
-		INIT_HLIST_NODE(&s->s_instances);
-		INIT_HLIST_BL_HEAD(&s->s_anon);
-		INIT_LIST_HEAD(&s->s_inodes);
-
-		if (list_lru_init(&s->s_dentry_lru))
-			goto err_out;
-		if (list_lru_init(&s->s_inode_lru))
-			goto err_out_dentry_lru;
-
-		INIT_LIST_HEAD(&s->s_mounts);
-		init_rwsem(&s->s_umount);
-		lockdep_set_class(&s->s_umount, &type->s_umount_key);
-		/*
-		 * sget() can have s_umount recursion.
-		 *
-		 * When it cannot find a suitable sb, it allocates a new
-		 * one (this one), and tries again to find a suitable old
-		 * one.
-		 *
-		 * In case that succeeds, it will acquire the s_umount
-		 * lock of the old one. Since these are clearly distrinct
-		 * locks, and this object isn't exposed yet, there's no
-		 * risk of deadlocks.
-		 *
-		 * Annotate this by putting this lock in a different
-		 * subclass.
-		 */
-		down_write_nested(&s->s_umount, SINGLE_DEPTH_NESTING);
-		s->s_count = 1;
-		atomic_set(&s->s_active, 1);
-		mutex_init(&s->s_vfs_rename_mutex);
-		lockdep_set_class(&s->s_vfs_rename_mutex, &type->s_vfs_rename_key);
-		mutex_init(&s->s_dquot.dqio_mutex);
-		mutex_init(&s->s_dquot.dqonoff_mutex);
-		init_rwsem(&s->s_dquot.dqptr_sem);
-		s->s_maxbytes = MAX_NON_LFS;
-		s->s_op = &default_op;
-		s->s_time_gran = 1000000000;
-		s->cleancache_poolid = -1;
-
-		s->s_shrink.seeks = DEFAULT_SEEKS;
-		s->s_shrink.scan_objects = super_cache_scan;
-		s->s_shrink.count_objects = super_cache_count;
-		s->s_shrink.batch = 1024;
-		s->s_shrink.flags = SHRINKER_NUMA_AWARE;
+	for (i = 0; i < SB_FREEZE_LEVELS; i++) {
+		if (percpu_counter_init(&s->s_writers.counter[i], 0) < 0)
+			goto fail;
+		lockdep_init_map(&s->s_writers.lock_map[i], sb_writers_name[i],
+				 &type->s_writers_key[i], 0);
 	}
-out:
+	init_waitqueue_head(&s->s_writers.wait);
+	init_waitqueue_head(&s->s_writers.wait_unfrozen);
+	s->s_flags = flags;
+	s->s_bdi = &default_backing_dev_info;
+	INIT_HLIST_NODE(&s->s_instances);
+	INIT_HLIST_BL_HEAD(&s->s_anon);
+	INIT_LIST_HEAD(&s->s_inodes);
+
+	if (list_lru_init(&s->s_dentry_lru))
+		goto fail;
+	if (list_lru_init(&s->s_inode_lru))
+		goto fail;
+
+	INIT_LIST_HEAD(&s->s_mounts);
+	init_rwsem(&s->s_umount);
+	lockdep_set_class(&s->s_umount, &type->s_umount_key);
+	/*
+	 * sget() can have s_umount recursion.
+	 *
+	 * When it cannot find a suitable sb, it allocates a new
+	 * one (this one), and tries again to find a suitable old
+	 * one.
+	 *
+	 * In case that succeeds, it will acquire the s_umount
+	 * lock of the old one. Since these are clearly distrinct
+	 * locks, and this object isn't exposed yet, there's no
+	 * risk of deadlocks.
+	 *
+	 * Annotate this by putting this lock in a different
+	 * subclass.
+	 */
+	down_write_nested(&s->s_umount, SINGLE_DEPTH_NESTING);
+	s->s_count = 1;
+	atomic_set(&s->s_active, 1);
+	mutex_init(&s->s_vfs_rename_mutex);
+	lockdep_set_class(&s->s_vfs_rename_mutex, &type->s_vfs_rename_key);
+	mutex_init(&s->s_dquot.dqio_mutex);
+	mutex_init(&s->s_dquot.dqonoff_mutex);
+	init_rwsem(&s->s_dquot.dqptr_sem);
+	s->s_maxbytes = MAX_NON_LFS;
+	s->s_op = &default_op;
+	s->s_time_gran = 1000000000;
+	s->cleancache_poolid = -1;
+
+	s->s_shrink.seeks = DEFAULT_SEEKS;
+	s->s_shrink.scan_objects = super_cache_scan;
+	s->s_shrink.count_objects = super_cache_count;
+	s->s_shrink.batch = 1024;
+	s->s_shrink.flags = SHRINKER_NUMA_AWARE;
 	return s;
 
-err_out_dentry_lru:
-	list_lru_destroy(&s->s_dentry_lru);
-err_out:
-	security_sb_free(s);
-#ifdef CONFIG_SMP
-	if (s->s_files)
-		free_percpu(s->s_files);
-#endif
-	destroy_sb_writers(s);
-out_free_sb:
-	kfree(s);
-	s = NULL;
-	goto out;
-}
-
-/**
- *	destroy_super	-	frees a superblock
- *	@s: superblock to free
- *
- *	Frees a superblock.
- */
-static inline void destroy_super(struct super_block *s)
-{
-	list_lru_destroy(&s->s_dentry_lru);
-	list_lru_destroy(&s->s_inode_lru);
-#ifdef CONFIG_SMP
-	free_percpu(s->s_files);
-#endif
-	destroy_sb_writers(s);
-	security_sb_free(s);
-	WARN_ON(!list_empty(&s->s_mounts));
-	kfree(s->s_subtype);
-	kfree(s->s_options);
-	kfree(s);
+fail:
+	destroy_super(s);
+	return NULL;
 }
 
 /* Superblock refcounting  */
-- 
cgit 


From 474279dc0f7745124fc76b474c8dc1294f8e87ce Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 1 Oct 2013 16:11:26 -0400
Subject: split __lookup_mnt() in two functions

Instead of passing the direction as argument (and checking it on every
step through the hash chain), just have separate __lookup_mnt() and
__lookup_mnt_last().  And use the standard iterators...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/mount.h     |  3 ++-
 fs/namei.c     |  4 ++--
 fs/namespace.c | 42 +++++++++++++++++++++++-------------------
 fs/pnode.c     |  6 +++---
 4 files changed, 30 insertions(+), 25 deletions(-)

diff --git a/fs/mount.h b/fs/mount.h
index 7076f25af35d..f0866076de6e 100644
--- a/fs/mount.h
+++ b/fs/mount.h
@@ -77,7 +77,8 @@ static inline int is_mounted(struct vfsmount *mnt)
 	return !IS_ERR_OR_NULL(real_mount(mnt));
 }
 
-extern struct mount *__lookup_mnt(struct vfsmount *, struct dentry *, int);
+extern struct mount *__lookup_mnt(struct vfsmount *, struct dentry *);
+extern struct mount *__lookup_mnt_last(struct vfsmount *, struct dentry *);
 
 static inline void get_mnt_ns(struct mnt_namespace *ns)
 {
diff --git a/fs/namei.c b/fs/namei.c
index 645268f23eb6..1f844fbfce72 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1111,7 +1111,7 @@ static bool __follow_mount_rcu(struct nameidata *nd, struct path *path,
 		if (!d_mountpoint(path->dentry))
 			break;
 
-		mounted = __lookup_mnt(path->mnt, path->dentry, 1);
+		mounted = __lookup_mnt(path->mnt, path->dentry);
 		if (!mounted)
 			break;
 		path->mnt = &mounted->mnt;
@@ -1132,7 +1132,7 @@ static void follow_mount_rcu(struct nameidata *nd)
 {
 	while (d_mountpoint(nd->path.dentry)) {
 		struct mount *mounted;
-		mounted = __lookup_mnt(nd->path.mnt, nd->path.dentry, 1);
+		mounted = __lookup_mnt(nd->path.mnt, nd->path.dentry);
 		if (!mounted)
 			break;
 		nd->path.mnt = &mounted->mnt;
diff --git a/fs/namespace.c b/fs/namespace.c
index 5cbe8cefadb5..500202ce10db 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -548,29 +548,33 @@ static void free_vfsmnt(struct mount *mnt)
 }
 
 /*
- * find the first or last mount at @dentry on vfsmount @mnt depending on
- * @dir. If @dir is set return the first mount else return the last mount.
+ * find the first mount at @dentry on vfsmount @mnt.
  * vfsmount_lock must be held for read or write.
  */
-struct mount *__lookup_mnt(struct vfsmount *mnt, struct dentry *dentry,
-			      int dir)
+struct mount *__lookup_mnt(struct vfsmount *mnt, struct dentry *dentry)
 {
 	struct list_head *head = mount_hashtable + hash(mnt, dentry);
-	struct list_head *tmp = head;
-	struct mount *p, *found = NULL;
+	struct mount *p;
 
-	for (;;) {
-		tmp = dir ? tmp->next : tmp->prev;
-		p = NULL;
-		if (tmp == head)
-			break;
-		p = list_entry(tmp, struct mount, mnt_hash);
-		if (&p->mnt_parent->mnt == mnt && p->mnt_mountpoint == dentry) {
-			found = p;
-			break;
-		}
-	}
-	return found;
+	list_for_each_entry(p, head, mnt_hash)
+		if (&p->mnt_parent->mnt == mnt && p->mnt_mountpoint == dentry)
+			return p;
+	return NULL;
+}
+
+/*
+ * find the last mount at @dentry on vfsmount @mnt.
+ * vfsmount_lock must be held for read or write.
+ */
+struct mount *__lookup_mnt_last(struct vfsmount *mnt, struct dentry *dentry)
+{
+	struct list_head *head = mount_hashtable + hash(mnt, dentry);
+	struct mount *p;
+
+	list_for_each_entry_reverse(p, head, mnt_hash)
+		if (&p->mnt_parent->mnt == mnt && p->mnt_mountpoint == dentry)
+			return p;
+	return NULL;
 }
 
 /*
@@ -594,7 +598,7 @@ struct vfsmount *lookup_mnt(struct path *path)
 	struct mount *child_mnt;
 
 	br_read_lock(&vfsmount_lock);
-	child_mnt = __lookup_mnt(path->mnt, path->dentry, 1);
+	child_mnt = __lookup_mnt(path->mnt, path->dentry);
 	if (child_mnt) {
 		mnt_add_count(child_mnt, 1);
 		br_read_unlock(&vfsmount_lock);
diff --git a/fs/pnode.c b/fs/pnode.c
index 58933fd149ad..c7221bb19801 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -310,7 +310,7 @@ int propagate_mount_busy(struct mount *mnt, int refcnt)
 
 	for (m = propagation_next(parent, parent); m;
 	     		m = propagation_next(m, parent)) {
-		child = __lookup_mnt(&m->mnt, mnt->mnt_mountpoint, 0);
+		child = __lookup_mnt_last(&m->mnt, mnt->mnt_mountpoint);
 		if (child && list_empty(&child->mnt_mounts) &&
 		    (ret = do_refcount_check(child, 1)))
 			break;
@@ -332,8 +332,8 @@ static void __propagate_umount(struct mount *mnt)
 	for (m = propagation_next(parent, parent); m;
 			m = propagation_next(m, parent)) {
 
-		struct mount *child = __lookup_mnt(&m->mnt,
-					mnt->mnt_mountpoint, 0);
+		struct mount *child = __lookup_mnt_last(&m->mnt,
+						mnt->mnt_mountpoint);
 		/*
 		 * umount the child only if the child has no
 		 * other children
-- 
cgit 


From 94e92a6e772e009e27083a7f42d49a179e5f668c Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 1 Oct 2013 16:18:06 -0400
Subject: move taking vfsmount_lock down into prepend_path()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/dcache.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/fs/dcache.c b/fs/dcache.c
index 41000305d716..d888223a5486 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -2889,6 +2889,7 @@ static int prepend_path(const struct path *path,
 	char *bptr;
 	int blen;
 
+	br_read_lock(&vfsmount_lock);
 	rcu_read_lock();
 restart:
 	bptr = *buffer;
@@ -2935,6 +2936,7 @@ restart:
 		goto restart;
 	}
 	done_seqretry(&rename_lock, seq);
+	br_read_unlock(&vfsmount_lock);
 
 	if (error >= 0 && bptr == *buffer) {
 		if (--blen < 0)
@@ -2971,9 +2973,7 @@ char *__d_path(const struct path *path,
 	int error;
 
 	prepend(&res, &buflen, "\0", 1);
-	br_read_lock(&vfsmount_lock);
 	error = prepend_path(path, root, &res, &buflen);
-	br_read_unlock(&vfsmount_lock);
 
 	if (error < 0)
 		return ERR_PTR(error);
@@ -2990,9 +2990,7 @@ char *d_absolute_path(const struct path *path,
 	int error;
 
 	prepend(&res, &buflen, "\0", 1);
-	br_read_lock(&vfsmount_lock);
 	error = prepend_path(path, &root, &res, &buflen);
-	br_read_unlock(&vfsmount_lock);
 
 	if (error > 1)
 		error = -EINVAL;
@@ -3067,9 +3065,7 @@ char *d_path(const struct path *path, char *buf, int buflen)
 
 	rcu_read_lock();
 	get_fs_root_rcu(current->fs, &root);
-	br_read_lock(&vfsmount_lock);
 	error = path_with_deleted(path, &root, &res, &buflen);
-	br_read_unlock(&vfsmount_lock);
 	rcu_read_unlock();
 
 	if (error < 0)
@@ -3224,7 +3220,6 @@ SYSCALL_DEFINE2(getcwd, char __user *, buf, unsigned long, size)
 	get_fs_root_and_pwd_rcu(current->fs, &root, &pwd);
 
 	error = -ENOENT;
-	br_read_lock(&vfsmount_lock);
 	if (!d_unlinked(pwd.dentry)) {
 		unsigned long len;
 		char *cwd = page + PATH_MAX;
@@ -3232,7 +3227,6 @@ SYSCALL_DEFINE2(getcwd, char __user *, buf, unsigned long, size)
 
 		prepend(&cwd, &buflen, "\0", 1);
 		error = prepend_path(&pwd, &root, &cwd, &buflen);
-		br_read_unlock(&vfsmount_lock);
 		rcu_read_unlock();
 
 		if (error < 0)
@@ -3253,7 +3247,6 @@ SYSCALL_DEFINE2(getcwd, char __user *, buf, unsigned long, size)
 				error = -EFAULT;
 		}
 	} else {
-		br_read_unlock(&vfsmount_lock);
 		rcu_read_unlock();
 	}
 
-- 
cgit 


From b70a80e7a133a0c86f2fa078e7c144597c516415 Mon Sep 17 00:00:00 2001
From: Miklos Szeredi <mszeredi@suse.cz>
Date: Tue, 1 Oct 2013 16:44:54 +0200
Subject: vfs: introduce d_instantiate_no_diralias()

...which just returns -EBUSY if a directory alias would be created.

This is to be used by fuse mkdir to make sure that a buggy or malicious
userspace filesystem doesn't do anything nasty.  Previously fuse used a
private mutex for this purpose, which can now go away.

Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
 fs/dcache.c            | 27 +++++++++++++++++++++++++++
 fs/fuse/dir.c          | 40 +++++-----------------------------------
 fs/fuse/fuse_i.h       |  3 ---
 fs/fuse/inode.c        |  2 --
 include/linux/dcache.h |  1 +
 5 files changed, 33 insertions(+), 40 deletions(-)

diff --git a/fs/dcache.c b/fs/dcache.c
index d888223a5486..c8e83d0d61ac 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1801,6 +1801,33 @@ struct dentry *d_instantiate_unique(struct dentry *entry, struct inode *inode)
 
 EXPORT_SYMBOL(d_instantiate_unique);
 
+/**
+ * d_instantiate_no_diralias - instantiate a non-aliased dentry
+ * @entry: dentry to complete
+ * @inode: inode to attach to this dentry
+ *
+ * Fill in inode information in the entry.  If a directory alias is found, then
+ * return an error (and drop inode).  Together with d_materialise_unique() this
+ * guarantees that a directory inode may never have more than one alias.
+ */
+int d_instantiate_no_diralias(struct dentry *entry, struct inode *inode)
+{
+	BUG_ON(!hlist_unhashed(&entry->d_alias));
+
+	spin_lock(&inode->i_lock);
+	if (S_ISDIR(inode->i_mode) && !hlist_empty(&inode->i_dentry)) {
+		spin_unlock(&inode->i_lock);
+		iput(inode);
+		return -EBUSY;
+	}
+	__d_instantiate(entry, inode);
+	spin_unlock(&inode->i_lock);
+	security_d_instantiate(entry, inode);
+
+	return 0;
+}
+EXPORT_SYMBOL(d_instantiate_no_diralias);
+
 struct dentry *d_make_root(struct inode *root_inode)
 {
 	struct dentry *res = NULL;
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c
index b7989f2ab4c4..c3eb2c46c8f1 100644
--- a/fs/fuse/dir.c
+++ b/fs/fuse/dir.c
@@ -342,24 +342,6 @@ int fuse_lookup_name(struct super_block *sb, u64 nodeid, struct qstr *name,
 	return err;
 }
 
-static struct dentry *fuse_materialise_dentry(struct dentry *dentry,
-					      struct inode *inode)
-{
-	struct dentry *newent;
-
-	if (inode && S_ISDIR(inode->i_mode)) {
-		struct fuse_conn *fc = get_fuse_conn(inode);
-
-		mutex_lock(&fc->inst_mutex);
-		newent = d_materialise_unique(dentry, inode);
-		mutex_unlock(&fc->inst_mutex);
-	} else {
-		newent = d_materialise_unique(dentry, inode);
-	}
-
-	return newent;
-}
-
 static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry,
 				  unsigned int flags)
 {
@@ -382,7 +364,7 @@ static struct dentry *fuse_lookup(struct inode *dir, struct dentry *entry,
 	if (inode && get_node_id(inode) == FUSE_ROOT_ID)
 		goto out_iput;
 
-	newent = fuse_materialise_dentry(entry, inode);
+	newent = d_materialise_unique(entry, inode);
 	err = PTR_ERR(newent);
 	if (IS_ERR(newent))
 		goto out_err;
@@ -601,21 +583,9 @@ static int create_new_entry(struct fuse_conn *fc, struct fuse_req *req,
 	}
 	kfree(forget);
 
-	if (S_ISDIR(inode->i_mode)) {
-		struct dentry *alias;
-		mutex_lock(&fc->inst_mutex);
-		alias = d_find_alias(inode);
-		if (alias) {
-			/* New directory must have moved since mkdir */
-			mutex_unlock(&fc->inst_mutex);
-			dput(alias);
-			iput(inode);
-			return -EBUSY;
-		}
-		d_instantiate(entry, inode);
-		mutex_unlock(&fc->inst_mutex);
-	} else
-		d_instantiate(entry, inode);
+	err = d_instantiate_no_diralias(entry, inode);
+	if (err)
+		return err;
 
 	fuse_change_entry_timeout(entry, &outarg);
 	fuse_invalidate_attr(dir);
@@ -1284,7 +1254,7 @@ static int fuse_direntplus_link(struct file *file,
 	if (!inode)
 		goto out;
 
-	alias = fuse_materialise_dentry(dentry, inode);
+	alias = d_materialise_unique(dentry, inode);
 	err = PTR_ERR(alias);
 	if (IS_ERR(alias))
 		goto out;
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index 5b9e6f3b6aef..fe446c222e3f 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -374,9 +374,6 @@ struct fuse_conn {
 	/** Lock protecting accessess to  members of this structure */
 	spinlock_t lock;
 
-	/** Mutex protecting against directory alias creation */
-	struct mutex inst_mutex;
-
 	/** Refcount */
 	atomic_t count;
 
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index a8ce6dab60a0..1c15613c64f8 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -565,7 +565,6 @@ void fuse_conn_init(struct fuse_conn *fc)
 {
 	memset(fc, 0, sizeof(*fc));
 	spin_lock_init(&fc->lock);
-	mutex_init(&fc->inst_mutex);
 	init_rwsem(&fc->killsb);
 	atomic_set(&fc->count, 1);
 	init_waitqueue_head(&fc->waitq);
@@ -596,7 +595,6 @@ void fuse_conn_put(struct fuse_conn *fc)
 	if (atomic_dec_and_test(&fc->count)) {
 		if (fc->destroy_req)
 			fuse_request_free(fc->destroy_req);
-		mutex_destroy(&fc->inst_mutex);
 		fc->release(fc);
 	}
 }
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 59066e0b4ff1..716c3760ee39 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -224,6 +224,7 @@ static inline int dname_external(const struct dentry *dentry)
 extern void d_instantiate(struct dentry *, struct inode *);
 extern struct dentry * d_instantiate_unique(struct dentry *, struct inode *);
 extern struct dentry * d_materialise_unique(struct dentry *, struct inode *);
+extern int d_instantiate_no_diralias(struct dentry *, struct inode *);
 extern void __d_drop(struct dentry *dentry);
 extern void d_drop(struct dentry *dentry);
 extern void d_delete(struct dentry *);
-- 
cgit 


From e2fec7c35582e7bb41cccc1761faa2af4dc17627 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 4 Oct 2013 17:06:56 -0400
Subject: make freeing super_block rcu-delayed

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/super.c         | 2 +-
 include/linux/fs.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/super.c b/fs/super.c
index efa6e488a95c..743bb7118053 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -149,7 +149,7 @@ static void destroy_super(struct super_block *s)
 	WARN_ON(!list_empty(&s->s_mounts));
 	kfree(s->s_subtype);
 	kfree(s->s_options);
-	kfree(s);
+	kfree_rcu(s, rcu);
 }
 
 /**
diff --git a/include/linux/fs.h b/include/linux/fs.h
index b09e4e1d747a..2ab8a67ee054 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1330,6 +1330,7 @@ struct super_block {
 	 */
 	struct list_lru		s_dentry_lru ____cacheline_aligned_in_smp;
 	struct list_lru		s_inode_lru ____cacheline_aligned_in_smp;
+	struct rcu_head		rcu;
 };
 
 extern struct timespec current_fs_time(struct super_block *sb);
-- 
cgit 


From 30687e0a47e89f56489ab73965ee88231e611986 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 3 Oct 2013 12:25:10 -0400
Subject: hpfs: make freeing sbi and codetables rcu-delayed

makes ->d_hash() and ->d_compare() safety in RCU mode independent
from vfsmount_lock

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/hpfs/hpfs_fn.h |  1 +
 fs/hpfs/super.c   | 28 ++++++++++++++--------------
 2 files changed, 15 insertions(+), 14 deletions(-)

diff --git a/fs/hpfs/hpfs_fn.h b/fs/hpfs/hpfs_fn.h
index 1b398636e990..6797bf80f6e2 100644
--- a/fs/hpfs/hpfs_fn.h
+++ b/fs/hpfs/hpfs_fn.h
@@ -80,6 +80,7 @@ struct hpfs_sb_info {
 	unsigned sb_c_bitmap;		/* current bitmap */
 	unsigned sb_max_fwd_alloc;	/* max forwad allocation */
 	int sb_timeshift;
+	struct rcu_head rcu;
 };
 
 /* Four 512-byte buffers and the 2k block obtained by concatenating them */
diff --git a/fs/hpfs/super.c b/fs/hpfs/super.c
index 4334cda8dba1..b8d01ef6f531 100644
--- a/fs/hpfs/super.c
+++ b/fs/hpfs/super.c
@@ -101,18 +101,24 @@ int hpfs_stop_cycles(struct super_block *s, int key, int *c1, int *c2,
 	return 0;
 }
 
-static void hpfs_put_super(struct super_block *s)
+static void free_sbi(struct hpfs_sb_info *sbi)
 {
-	struct hpfs_sb_info *sbi = hpfs_sb(s);
+	kfree(sbi->sb_cp_table);
+	kfree(sbi->sb_bmp_dir);
+	kfree(sbi);
+}
 
+static void lazy_free_sbi(struct rcu_head *rcu)
+{
+	free_sbi(container_of(rcu, struct hpfs_sb_info, rcu));
+}
+
+static void hpfs_put_super(struct super_block *s)
+{
 	hpfs_lock(s);
 	unmark_dirty(s);
 	hpfs_unlock(s);
-
-	kfree(sbi->sb_cp_table);
-	kfree(sbi->sb_bmp_dir);
-	s->s_fs_info = NULL;
-	kfree(sbi);
+	call_rcu(&hpfs_sb(s)->rcu, lazy_free_sbi);
 }
 
 unsigned hpfs_count_one_bitmap(struct super_block *s, secno secno)
@@ -485,9 +491,6 @@ static int hpfs_fill_super(struct super_block *s, void *options, int silent)
 	}
 	s->s_fs_info = sbi;
 
-	sbi->sb_bmp_dir = NULL;
-	sbi->sb_cp_table = NULL;
-
 	mutex_init(&sbi->hpfs_mutex);
 	hpfs_lock(s);
 
@@ -679,10 +682,7 @@ bail2:	brelse(bh0);
 bail1:
 bail0:
 	hpfs_unlock(s);
-	kfree(sbi->sb_bmp_dir);
-	kfree(sbi->sb_cp_table);
-	s->s_fs_info = NULL;
-	kfree(sbi);
+	free_sbi(sbi);
 	return -EINVAL;
 }
 
-- 
cgit 


From 2d1d9b5b5cc2d7d528a7cbf621d924de38b1b6b6 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 3 Oct 2013 12:37:18 -0400
Subject: adfs: delayed freeing of sbi

makes ->d_hash() and ->d_compare() safety in RCU mode independent
from vfsmount_lock.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/adfs/adfs.h  | 9 ++++++---
 fs/adfs/super.c | 3 +--
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/fs/adfs/adfs.h b/fs/adfs/adfs.h
index 585adafb0cc2..c770337c4b45 100644
--- a/fs/adfs/adfs.h
+++ b/fs/adfs/adfs.h
@@ -43,9 +43,12 @@ struct adfs_dir_ops;
  * ADFS file system superblock data in memory
  */
 struct adfs_sb_info {
-	struct adfs_discmap *s_map;	/* bh list containing map		 */
-	struct adfs_dir_ops *s_dir;	/* directory operations			 */
-
+	union { struct {
+		struct adfs_discmap *s_map;	/* bh list containing map	 */
+		struct adfs_dir_ops *s_dir;	/* directory operations		 */
+		};
+		struct rcu_head rcu;		/* used only at shutdown time	 */
+	};
 	kuid_t		s_uid;		/* owner uid				 */
 	kgid_t		s_gid;		/* owner gid				 */
 	umode_t		s_owner_mask;	/* ADFS owner perm -> unix perm		 */
diff --git a/fs/adfs/super.c b/fs/adfs/super.c
index 0ff4bae2c2a2..7b3003cb6f1b 100644
--- a/fs/adfs/super.c
+++ b/fs/adfs/super.c
@@ -123,8 +123,7 @@ static void adfs_put_super(struct super_block *sb)
 	for (i = 0; i < asb->s_map_size; i++)
 		brelse(asb->s_map[i].dm_bh);
 	kfree(asb->s_map);
-	kfree(asb);
-	sb->s_fs_info = NULL;
+	kfree_rcu(asb, rcu);
 }
 
 static int adfs_show_options(struct seq_file *seq, struct dentry *root)
-- 
cgit 


From baa40671d3e3b590a33b2c0e022db61cbebf5c00 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 3 Oct 2013 12:46:44 -0400
Subject: autofs4: make freeing sbi rcu-delayed

makes ->d_managed() safety in RCU mode independent from vfsmount_lock

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/autofs4/autofs_i.h |  1 +
 fs/autofs4/inode.c    | 13 ++++---------
 2 files changed, 5 insertions(+), 9 deletions(-)

diff --git a/fs/autofs4/autofs_i.h b/fs/autofs4/autofs_i.h
index ebab147e9700..4218e26df916 100644
--- a/fs/autofs4/autofs_i.h
+++ b/fs/autofs4/autofs_i.h
@@ -122,6 +122,7 @@ struct autofs_sb_info {
 	spinlock_t lookup_lock;
 	struct list_head active_list;
 	struct list_head expiring_list;
+	struct rcu_head rcu;
 };
 
 static inline struct autofs_sb_info *autofs4_sbi(struct super_block *sb)
diff --git a/fs/autofs4/inode.c b/fs/autofs4/inode.c
index b104726e2d0a..3b9cc9b973c2 100644
--- a/fs/autofs4/inode.c
+++ b/fs/autofs4/inode.c
@@ -56,18 +56,13 @@ void autofs4_kill_sb(struct super_block *sb)
 	 * just call kill_anon_super when we are called from
 	 * deactivate_super.
 	 */
-	if (!sbi)
-		goto out_kill_sb;
-
-	/* Free wait queues, close pipe */
-	autofs4_catatonic_mode(sbi);
-
-	sb->s_fs_info = NULL;
-	kfree(sbi);
+	if (sbi) /* Free wait queues, close pipe */
+		autofs4_catatonic_mode(sbi);
 
-out_kill_sb:
 	DPRINTK("shutting down");
 	kill_litter_super(sb);
+	if (sbi)
+		kfree_rcu(sbi, rcu);
 }
 
 static int autofs4_show_options(struct seq_file *m, struct dentry *root)
-- 
cgit 


From 2e32cf5ef2683a196df24ccd2cd2b4ed735ad9d3 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 3 Oct 2013 12:53:37 -0400
Subject: cifs: rcu-delay unload_nls() and freeing sbi

makes ->d_hash(), ->d_compare() and ->permission() safety in RCU mode
independent from vfsmount_lock.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/cifs/cifs_fs_sb.h |  1 +
 fs/cifs/connect.c    | 10 ++++++++--
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/fs/cifs/cifs_fs_sb.h b/fs/cifs/cifs_fs_sb.h
index 37e4a72a7d1c..9409fa10bd5c 100644
--- a/fs/cifs/cifs_fs_sb.h
+++ b/fs/cifs/cifs_fs_sb.h
@@ -65,5 +65,6 @@ struct cifs_sb_info {
 	char   *mountdata; /* options received at mount time or via DFS refs */
 	struct backing_dev_info bdi;
 	struct delayed_work prune_tlinks;
+	struct rcu_head rcu;
 };
 #endif				/* _CIFS_FS_SB_H */
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index a279ffc0bc29..886db8b41e35 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -3755,6 +3755,13 @@ CIFSTCon(const unsigned int xid, struct cifs_ses *ses,
 	return rc;
 }
 
+static void delayed_free(struct rcu_head *p)
+{
+	struct cifs_sb_info *sbi = container_of(p, struct cifs_sb_info, rcu);
+	unload_nls(sbi->local_nls);
+	kfree(sbi);
+}
+
 void
 cifs_umount(struct cifs_sb_info *cifs_sb)
 {
@@ -3779,8 +3786,7 @@ cifs_umount(struct cifs_sb_info *cifs_sb)
 
 	bdi_destroy(&cifs_sb->bdi);
 	kfree(cifs_sb->mountdata);
-	unload_nls(cifs_sb->local_nls);
-	kfree(cifs_sb);
+	call_rcu(&cifs_sb->rcu, delayed_free);
 }
 
 int
-- 
cgit 


From cac45b062c67f86dc1d91d675128838773523243 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 3 Oct 2013 13:16:50 -0400
Subject: fat: rcu-delay unloading nls and freeing sbi

makes ->d_hash() and ->d_compare() safety in RCU mode independent
from vfsmount_lock.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/fat/fat.h   |  1 +
 fs/fat/inode.c | 19 +++++++++++--------
 2 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/fs/fat/fat.h b/fs/fat/fat.h
index 4241e6f39e86..7c31f4bc74a9 100644
--- a/fs/fat/fat.h
+++ b/fs/fat/fat.h
@@ -102,6 +102,7 @@ struct msdos_sb_info {
 	struct hlist_head dir_hashtable[FAT_HASH_SIZE];
 
 	unsigned int dirty;           /* fs state before mount */
+	struct rcu_head rcu;
 };
 
 #define FAT_CACHE_VALID	0	/* special case for valid cache */
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 0062da21dd8b..854b578f6695 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -548,6 +548,16 @@ static void fat_set_state(struct super_block *sb,
 	brelse(bh);
 }
 
+static void delayed_free(struct rcu_head *p)
+{
+	struct msdos_sb_info *sbi = container_of(p, struct msdos_sb_info, rcu);
+	unload_nls(sbi->nls_disk);
+	unload_nls(sbi->nls_io);
+	if (sbi->options.iocharset != fat_default_iocharset)
+		kfree(sbi->options.iocharset);
+	kfree(sbi);
+}
+
 static void fat_put_super(struct super_block *sb)
 {
 	struct msdos_sb_info *sbi = MSDOS_SB(sb);
@@ -557,14 +567,7 @@ static void fat_put_super(struct super_block *sb)
 	iput(sbi->fsinfo_inode);
 	iput(sbi->fat_inode);
 
-	unload_nls(sbi->nls_disk);
-	unload_nls(sbi->nls_io);
-
-	if (sbi->options.iocharset != fat_default_iocharset)
-		kfree(sbi->options.iocharset);
-
-	sb->s_fs_info = NULL;
-	kfree(sbi);
+	call_rcu(&sbi->rcu, delayed_free);
 }
 
 static struct kmem_cache *fat_inode_cachep;
-- 
cgit 


From 1dcddd4abd2c6df7f28928ad5cafa4a1cd20030b Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 3 Oct 2013 13:22:44 -0400
Subject: ncpfs: rcu-delay unload_nls() and freeing ncp_server

makes ->d_hash() and ->d_compare() safety in RCU mode independent
from vfsmount_lock.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/ncpfs/inode.c     | 19 ++++++++++++-------
 fs/ncpfs/ncp_fs_sb.h |  2 +-
 2 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
index 4659da67e7f6..2cf2ebecb55f 100644
--- a/fs/ncpfs/inode.c
+++ b/fs/ncpfs/inode.c
@@ -782,6 +782,17 @@ out:
 	return error;
 }
 
+static void delayed_free(struct rcu_head *p)
+{
+	struct ncp_server *server = container_of(p, struct ncp_server, rcu);
+#ifdef CONFIG_NCPFS_NLS
+	/* unload the NLS charsets */
+	unload_nls(server->nls_vol);
+	unload_nls(server->nls_io);
+#endif /* CONFIG_NCPFS_NLS */
+	kfree(server);
+}
+
 static void ncp_put_super(struct super_block *sb)
 {
 	struct ncp_server *server = NCP_SBP(sb);
@@ -792,11 +803,6 @@ static void ncp_put_super(struct super_block *sb)
 
 	ncp_stop_tasks(server);
 
-#ifdef CONFIG_NCPFS_NLS
-	/* unload the NLS charsets */
-	unload_nls(server->nls_vol);
-	unload_nls(server->nls_io);
-#endif /* CONFIG_NCPFS_NLS */
 	mutex_destroy(&server->rcv.creq_mutex);
 	mutex_destroy(&server->root_setup_lock);
 	mutex_destroy(&server->mutex);
@@ -813,8 +819,7 @@ static void ncp_put_super(struct super_block *sb)
 	vfree(server->rxbuf);
 	vfree(server->txbuf);
 	vfree(server->packet);
-	sb->s_fs_info = NULL;
-	kfree(server);
+	call_rcu(&server->rcu, delayed_free);
 }
 
 static int ncp_statfs(struct dentry *dentry, struct kstatfs *buf)
diff --git a/fs/ncpfs/ncp_fs_sb.h b/fs/ncpfs/ncp_fs_sb.h
index c51b2c543539..b81e97adc5a9 100644
--- a/fs/ncpfs/ncp_fs_sb.h
+++ b/fs/ncpfs/ncp_fs_sb.h
@@ -38,7 +38,7 @@ struct ncp_mount_data_kernel {
 };
 
 struct ncp_server {
-
+	struct rcu_head rcu;
 	struct ncp_mount_data_kernel m;	/* Nearly all of the mount data is of
 					   interest for us later, so we store
 					   it completely. */
-- 
cgit 


From 1adfcb03e31ba0d6be5fddf773da4357d0792cbb Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 3 Oct 2013 13:28:06 -0400
Subject: pid_namespace: make freeing struct pid_namespace rcu-delayed

makes procfs ->premission() instances safety in RCU mode independent
from vfsmount_lock.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 include/linux/pid_namespace.h | 1 +
 kernel/pid_namespace.c        | 8 +++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h
index e2772666f004..7246ef3d4455 100644
--- a/include/linux/pid_namespace.h
+++ b/include/linux/pid_namespace.h
@@ -23,6 +23,7 @@ struct bsd_acct_struct;
 struct pid_namespace {
 	struct kref kref;
 	struct pidmap pidmap[PIDMAP_ENTRIES];
+	struct rcu_head rcu;
 	int last_pid;
 	unsigned int nr_hashed;
 	struct task_struct *child_reaper;
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c
index 42086551a24a..06c62de9c711 100644
--- a/kernel/pid_namespace.c
+++ b/kernel/pid_namespace.c
@@ -132,6 +132,12 @@ out:
 	return ERR_PTR(err);
 }
 
+static void delayed_free_pidns(struct rcu_head *p)
+{
+	kmem_cache_free(pid_ns_cachep,
+			container_of(p, struct pid_namespace, rcu));
+}
+
 static void destroy_pid_namespace(struct pid_namespace *ns)
 {
 	int i;
@@ -140,7 +146,7 @@ static void destroy_pid_namespace(struct pid_namespace *ns)
 	for (i = 0; i < PIDMAP_ENTRIES; i++)
 		kfree(ns->pidmap[i].page);
 	put_user_ns(ns->user_ns);
-	kmem_cache_free(pid_ns_cachep, ns);
+	call_rcu(&ns->rcu, delayed_free_pidns);
 }
 
 struct pid_namespace *copy_pid_ns(unsigned long flags,
-- 
cgit 


From dd3e2c55a45fe75f3213b17b74f9a32380f4e84b Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 3 Oct 2013 21:21:39 -0400
Subject: fuse: rcu-delay freeing fuse_conn

makes ->permission() and ->d_revalidate() safety in RCU mode independent
from vfsmount_lock.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/fuse/cuse.c   | 2 +-
 fs/fuse/fuse_i.h | 2 ++
 fs/fuse/inode.c  | 2 +-
 3 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/fuse/cuse.c b/fs/fuse/cuse.c
index adbfd66b380f..8ca88d716dd3 100644
--- a/fs/fuse/cuse.c
+++ b/fs/fuse/cuse.c
@@ -473,7 +473,7 @@ err:
 static void cuse_fc_release(struct fuse_conn *fc)
 {
 	struct cuse_conn *cc = fc_to_cc(fc);
-	kfree(cc);
+	kfree_rcu(cc, fc.rcu);
 }
 
 /**
diff --git a/fs/fuse/fuse_i.h b/fs/fuse/fuse_i.h
index fe446c222e3f..4715674f050c 100644
--- a/fs/fuse/fuse_i.h
+++ b/fs/fuse/fuse_i.h
@@ -377,6 +377,8 @@ struct fuse_conn {
 	/** Refcount */
 	atomic_t count;
 
+	struct rcu_head rcu;
+
 	/** The user id for this mount */
 	kuid_t user_id;
 
diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c
index 1c15613c64f8..d468643a68b2 100644
--- a/fs/fuse/inode.c
+++ b/fs/fuse/inode.c
@@ -918,7 +918,7 @@ static void fuse_send_init(struct fuse_conn *fc, struct fuse_req *req)
 
 static void fuse_free_conn(struct fuse_conn *fc)
 {
-	kfree(fc);
+	kfree_rcu(fc, rcu);
 }
 
 static int fuse_bdi_init(struct fuse_conn *fc, struct super_block *sb)
-- 
cgit 


From b9c0622516b73170fa9abffece3079920b78ed6f Mon Sep 17 00:00:00 2001
From: Ming Lei <ming.lei@canonical.com>
Date: Wed, 23 Oct 2013 21:44:53 +0800
Subject: sysfs: fix sysfs_write_file for bin file
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Before patch(sysfs: prepare path write for unified regular / bin
file handling), when size of bin file is zero, writting still can
continue, but this patch changes the behaviour.

The worse thing is that firmware loader is broken by this patch,
and user space application can't write to firmware bin file any more
because both firmware loader and drivers can't know at advance how
large the firmware file is and have to set its initialized size as
zero.

This patch fixes the problem and keeps behaviour of writting to bin
as before.

Reported-by: Lothar Waßmann <LW@karo-electronics.de>
Tested-by: Lothar Waßmann <LW@karo-electronics.de>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/file.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 5d818df7250b..c3795978b404 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -275,11 +275,10 @@ static ssize_t sysfs_write_file(struct file *file, const char __user *user_buf,
 {
 	struct sysfs_open_file *of = sysfs_of(file);
 	ssize_t len = min_t(size_t, count, PAGE_SIZE);
+	loff_t size = file_inode(file)->i_size;
 	char *buf;
 
-	if (sysfs_is_bin(of->sd)) {
-		loff_t size = file_inode(file)->i_size;
-
+	if (sysfs_is_bin(of->sd) && size) {
 		if (size <= *ppos)
 			return 0;
 		len = min_t(ssize_t, len, size - *ppos);
-- 
cgit 


From 6fffcfa7c0fc438d3667b4eb2074d94f69c12c7b Mon Sep 17 00:00:00 2001
From: Kevin Hilman <khilman@linaro.org>
Date: Fri, 18 Oct 2013 22:52:46 -0700
Subject: devres: restore zeroing behavior of devres_alloc()

commit 64c862a8 (devres: add kernel standard devm_k.alloc functions) changed
the default behavior of alloc_dr() to no longer zero the allocated memory.  However,
only the devm.k.alloc() function were modified to pass in __GFP_ZERO which leaves
any users of devres_alloc() or __devres_alloc() with potentially wrong assumptions
about memory being zero'd upon allocation.

To fix, add __GFP_ZERO to devres_alloc() calls to preserve previous
behavior of zero'ing memory upon allocation.

Signed-off-by: Kevin Hilman <khilman@linaro.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/base/devres.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/base/devres.c b/drivers/base/devres.c
index 37e67a26e388..545c4de412c3 100644
--- a/drivers/base/devres.c
+++ b/drivers/base/devres.c
@@ -111,7 +111,7 @@ void * __devres_alloc(dr_release_t release, size_t size, gfp_t gfp,
 {
 	struct devres *dr;
 
-	dr = alloc_dr(release, size, gfp);
+	dr = alloc_dr(release, size, gfp | __GFP_ZERO);
 	if (unlikely(!dr))
 		return NULL;
 	set_node_dbginfo(&dr->node, name, size);
@@ -136,7 +136,7 @@ void * devres_alloc(dr_release_t release, size_t size, gfp_t gfp)
 {
 	struct devres *dr;
 
-	dr = alloc_dr(release, size, gfp);
+	dr = alloc_dr(release, size, gfp | __GFP_ZERO);
 	if (unlikely(!dr))
 		return NULL;
 	return dr->data;
-- 
cgit 


From 629c66a22c21b692b6e58b9c1d8fa56a60ccb52d Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Thu, 24 Oct 2013 18:05:42 -0700
Subject: lkdtm: isolate stack corruption test

When tests were added to lkdtm that grew the stack frame, the stack
corruption test stopped working. This isolates the test in its own
function, and forces it not to be inlined.

Signed-off-by: Kees Cook <keescook@chromium.org>
Fixes: cc33c537c12f ("lkdtm: add "EXEC_*" triggers")
Cc: stable <stable@vger.kernel.org> # 3.12
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/lkdtm.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/misc/lkdtm.c b/drivers/misc/lkdtm.c
index 2fc0586ce3bb..9cbd0370ca44 100644
--- a/drivers/misc/lkdtm.c
+++ b/drivers/misc/lkdtm.c
@@ -297,6 +297,14 @@ static void do_nothing(void)
 	return;
 }
 
+static noinline void corrupt_stack(void)
+{
+	/* Use default char array length that triggers stack protection. */
+	char data[8];
+
+	memset((void *)data, 0, 64);
+}
+
 static void execute_location(void *dst)
 {
 	void (*func)(void) = dst;
@@ -327,13 +335,9 @@ static void lkdtm_do_action(enum ctype which)
 	case CT_OVERFLOW:
 		(void) recursive_loop(0);
 		break;
-	case CT_CORRUPT_STACK: {
-		/* Make sure the compiler creates and uses an 8 char array. */
-		volatile char data[8];
-
-		memset((void *)data, 0, 64);
+	case CT_CORRUPT_STACK:
+		corrupt_stack();
 		break;
-	}
 	case CT_UNALIGNED_LOAD_STORE_WRITE: {
 		static u8 data[5] __attribute__((aligned(4))) = {1, 2,
 				3, 4, 5};
-- 
cgit 


From 5957324045ba2c127c9401fa3ac61ac52e043ca8 Mon Sep 17 00:00:00 2001
From: John Stultz <john.stultz@linaro.org>
Date: Mon, 21 Oct 2013 09:58:07 -0700
Subject: staging: ashmem: Fix ASHMEM_PURGE_ALL_CACHES return value

Hopefully this isn't too late for 3.12.

In commit 7dc19d5aff (convert shrinkers to new count/scan API)
the return value to PURGE_ALL_CACHES was dropped, causing -EPERM
to always be returned.

This patch re-adds the ret assignment, setting it to the the
ashmem_shrink_count(), which is the lru_count.

(Sorry this was missed in the review!)

Fixes: 7dc19d5affd7 ("convert shrinkers to new count/scan API")
Cc: Colin Cross <ccross@android.com>
Cc: Android Kernel Team <kernel-team@android.com>
Cc: Glauber Costa <glommer@openvz.org>
Reported-by: YongQin Liu <yongqin.liu@linaro.org>
Signed-off-by: John Stultz <john.stultz@linaro.org>
Cc: stable <stable@kernel.org> # 3.12
Acked-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/android/ashmem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c
index db5325c88f1c..23948f167012 100644
--- a/drivers/staging/android/ashmem.c
+++ b/drivers/staging/android/ashmem.c
@@ -777,7 +777,7 @@ static long ashmem_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 				.gfp_mask = GFP_KERNEL,
 				.nr_to_scan = LONG_MAX,
 			};
-
+			ret = ashmem_shrink_count(&ashmem_shrinker, &sc);
 			nodes_setall(sc.nodes_to_scan);
 			ashmem_shrink_scan(&ashmem_shrinker, &sc);
 		}
-- 
cgit 


From 7c64884b19f3dc864208df30c0a9c24175dac26a Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sun, 20 Oct 2013 18:29:55 +0530
Subject: Staging: sb105x: Fix a possible null dereference

This patch fixes the following error in sb_pc_mp.c-

drivers/staging/sb105x/sb_pci_mp.c:546 mp_startup() error: we previously assumed 'info->tty' could be null (see line 525)

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/sb105x/sb_pci_mp.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/sb105x/sb_pci_mp.c b/drivers/staging/sb105x/sb_pci_mp.c
index adb6bea728b2..bc53b4ef1e61 100644
--- a/drivers/staging/sb105x/sb_pci_mp.c
+++ b/drivers/staging/sb105x/sb_pci_mp.c
@@ -543,14 +543,14 @@ static int mp_startup(struct sb_uart_state *state, int init_hw)
 		if (init_hw) {
 			mp_change_speed(state, NULL);
 
-			if (info->tty->termios.c_cflag & CBAUD)
+			if (info->tty && (info->tty->termios.c_cflag & CBAUD))
 				uart_set_mctrl(port, TIOCM_RTS | TIOCM_DTR);
 		}
 
 		info->flags |= UIF_INITIALIZED;
 
-
-		clear_bit(TTY_IO_ERROR, &info->tty->flags);
+		if (info->tty)
+			clear_bit(TTY_IO_ERROR, &info->tty->flags);
 	}
 
 	if (retval && capable(CAP_SYS_ADMIN))
-- 
cgit 


From 0636fc507a976cdc40f21bdbcce6f0b98ff1dfe9 Mon Sep 17 00:00:00 2001
From: Rui li <li.rui27@zte.com.cn>
Date: Fri, 25 Oct 2013 10:57:21 +0800
Subject: USB：add new zte 3g-dongle's pid to option.c
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Rui li <li.rui27@zte.com.cn>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/option.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index acaee066b99a..c3d94853b4ab 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1376,6 +1376,23 @@ static const struct usb_device_id option_ids[] = {
 		.driver_info = (kernel_ulong_t)&net_intf2_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1426, 0xff, 0xff, 0xff),  /* ZTE MF91 */
 		.driver_info = (kernel_ulong_t)&net_intf2_blacklist },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1533, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1534, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1535, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1545, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1546, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1547, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1565, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1566, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1567, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1589, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1590, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1591, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1592, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1594, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1596, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1598, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1600, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x2002, 0xff,
 	  0xff, 0xff), .driver_info = (kernel_ulong_t)&zte_k3765_z_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x2003, 0xff, 0xff, 0xff) },
-- 
cgit 


From adfedd9a32e4e3490c0060576fd824881572b72a Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 13:29:02 +0530
Subject: dmaengine: use DMA_COMPLETE for dma completion status

the DMA_SUCCESS is a misnomer as dmaengine indicates the transfer is complete and
gives no guarantee of the transfer success. Hence we should use DMA_COMPLTE
instead of DMA_SUCCESS

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/dmaengine.c   |  2 +-
 include/linux/dmaengine.h | 12 ++++++------
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 9162ac80c18f..81d876528c70 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -1062,7 +1062,7 @@ dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx)
 	unsigned long dma_sync_wait_timeout = jiffies + msecs_to_jiffies(5000);
 
 	if (!tx)
-		return DMA_SUCCESS;
+		return DMA_COMPLETE;
 
 	while (tx->cookie == -EBUSY) {
 		if (time_after_eq(jiffies, dma_sync_wait_timeout)) {
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 0bc727534108..120e64c96478 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -45,13 +45,13 @@ static inline int dma_submit_error(dma_cookie_t cookie)
 
 /**
  * enum dma_status - DMA transaction status
- * @DMA_SUCCESS: transaction completed successfully
+ * @DMA_COMPLETE: transaction completed
  * @DMA_IN_PROGRESS: transaction not yet processed
  * @DMA_PAUSED: transaction is paused
  * @DMA_ERROR: transaction failed
  */
 enum dma_status {
-	DMA_SUCCESS,
+	DMA_SUCCESS = 0, DMA_COMPLETE = 0,
 	DMA_IN_PROGRESS,
 	DMA_PAUSED,
 	DMA_ERROR,
@@ -979,10 +979,10 @@ static inline enum dma_status dma_async_is_complete(dma_cookie_t cookie,
 {
 	if (last_complete <= last_used) {
 		if ((cookie <= last_complete) || (cookie > last_used))
-			return DMA_SUCCESS;
+			return DMA_COMPLETE;
 	} else {
 		if ((cookie <= last_complete) && (cookie > last_used))
-			return DMA_SUCCESS;
+			return DMA_COMPLETE;
 	}
 	return DMA_IN_PROGRESS;
 }
@@ -1013,11 +1013,11 @@ static inline struct dma_chan *dma_find_channel(enum dma_transaction_type tx_typ
 }
 static inline enum dma_status dma_sync_wait(struct dma_chan *chan, dma_cookie_t cookie)
 {
-	return DMA_SUCCESS;
+	return DMA_COMPLETE;
 }
 static inline enum dma_status dma_wait_for_async_tx(struct dma_async_tx_descriptor *tx)
 {
-	return DMA_SUCCESS;
+	return DMA_COMPLETE;
 }
 static inline void dma_issue_pending_all(void)
 {
-- 
cgit 


From 0996e895d261abdabd6f1deaa20bcaedf5f0d257 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 13:33:02 +0530
Subject: dmaengine: amba-pl08x: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/amba-pl08x.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index 9b5025777ac8..4ee6533108f6 100644
--- a/drivers/dma/amba-pl08x.c
+++ b/drivers/dma/amba-pl08x.c
@@ -1252,7 +1252,7 @@ static enum dma_status pl08x_dma_tx_status(struct dma_chan *chan,
 	size_t bytes = 0;
 
 	ret = dma_cookie_status(chan, cookie, txstate);
-	if (ret == DMA_SUCCESS)
+	if (ret == DMA_COMPLETE)
 		return ret;
 
 	/*
@@ -1267,7 +1267,7 @@ static enum dma_status pl08x_dma_tx_status(struct dma_chan *chan,
 
 	spin_lock_irqsave(&plchan->vc.lock, flags);
 	ret = dma_cookie_status(chan, cookie, txstate);
-	if (ret != DMA_SUCCESS) {
+	if (ret != DMA_COMPLETE) {
 		vd = vchan_find_desc(&plchan->vc, cookie);
 		if (vd) {
 			/* On the issued list, so hasn't been processed yet */
-- 
cgit 


From 6d203d1e0af17c33954d3800397f32d86ff8d3cf Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 13:34:35 +0530
Subject: dmaengine: at_hdma: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/at_hdmac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index c787f38a186a..1ef74579447d 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -1102,7 +1102,7 @@ atc_tx_status(struct dma_chan *chan,
 	int bytes = 0;
 
 	ret = dma_cookie_status(chan, cookie, txstate);
-	if (ret == DMA_SUCCESS)
+	if (ret == DMA_COMPLETE)
 		return ret;
 	/*
 	 * There's no point calculating the residue if there's
-- 
cgit 


From 9ce6e50406ba2c3781df8dc196c85a9437ff0410 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 13:35:45 +0530
Subject: dmaengine: coh901318: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/coh901318.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/coh901318.c b/drivers/dma/coh901318.c
index 3025b9107af2..3c6716e0b78e 100644
--- a/drivers/dma/coh901318.c
+++ b/drivers/dma/coh901318.c
@@ -2369,7 +2369,7 @@ coh901318_tx_status(struct dma_chan *chan, dma_cookie_t cookie,
 	enum dma_status ret;
 
 	ret = dma_cookie_status(chan, cookie, txstate);
-	if (ret == DMA_SUCCESS)
+	if (ret == DMA_COMPLETE)
 		return ret;
 
 	dma_set_residue(txstate, coh901318_get_bytes_left(chan));
-- 
cgit 


From ed83c0c8c11b1c9583f29098a3ac906d9a19fe70 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 13:36:28 +0530
Subject: dmaengine: cppi41: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/cppi41.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c
index 167c0223ae9e..278b3058919a 100644
--- a/drivers/dma/cppi41.c
+++ b/drivers/dma/cppi41.c
@@ -353,7 +353,7 @@ static enum dma_status cppi41_dma_tx_status(struct dma_chan *chan,
 
 	/* lock */
 	ret = dma_cookie_status(chan, cookie, txstate);
-	if (txstate && ret == DMA_SUCCESS)
+	if (txstate && ret == DMA_COMPLETE)
 		txstate->residue = c->residue;
 	/* unlock */
 
-- 
cgit 


From a605c48babb53067b26dae166937763943bf74d7 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 13:36:54 +0530
Subject: dmaengine: jz4740: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/dma-jz4740.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/dma-jz4740.c b/drivers/dma/dma-jz4740.c
index b0c0c8268d42..94c380f07538 100644
--- a/drivers/dma/dma-jz4740.c
+++ b/drivers/dma/dma-jz4740.c
@@ -491,7 +491,7 @@ static enum dma_status jz4740_dma_tx_status(struct dma_chan *c,
 	unsigned long flags;
 
 	status = dma_cookie_status(c, cookie, state);
-	if (status == DMA_SUCCESS || !state)
+	if (status == DMA_COMPLETE || !state)
 		return status;
 
 	spin_lock_irqsave(&chan->vchan.lock, flags);
-- 
cgit 


From 19e9f99f273bdefef8c88465933907e242a40d66 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 13:37:27 +0530
Subject: dmaengine: dmatest: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/dmatest.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index 92f796cdc6ab..59e287f56dfc 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -740,7 +740,7 @@ static int dmatest_func(void *data)
 					  len, 0);
 			failed_tests++;
 			continue;
-		} else if (status != DMA_SUCCESS) {
+		} else if (status != DMA_COMPLETE) {
 			enum dmatest_error_type type = (status == DMA_ERROR) ?
 				DMATEST_ET_DMA_ERROR : DMATEST_ET_DMA_IN_PROGRESS;
 			thread_result_add(info, result, type,
-- 
cgit 


From 2c40410b87bfd428d65490fbd26d8260f94392b4 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 13:41:15 +0530
Subject: dmaengine: dw: use DMA_COMPLETE for dma completion status

Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/dw/core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c
index 89eb89f22284..2c29331571e4 100644
--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -1098,13 +1098,13 @@ dwc_tx_status(struct dma_chan *chan,
 	enum dma_status		ret;
 
 	ret = dma_cookie_status(chan, cookie, txstate);
-	if (ret == DMA_SUCCESS)
+	if (ret == DMA_COMPLETE)
 		return ret;
 
 	dwc_scan_descriptors(to_dw_dma(chan->device), dwc);
 
 	ret = dma_cookie_status(chan, cookie, txstate);
-	if (ret != DMA_SUCCESS)
+	if (ret != DMA_COMPLETE)
 		dma_set_residue(txstate, dwc_get_residue(dwc));
 
 	if (dwc->paused && ret == DMA_IN_PROGRESS)
-- 
cgit 


From 9d386ec590a9455733d6fad3e4d1a4b2babc490c Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 13:42:15 +0530
Subject: dmaengine: edma: use DMA_COMPLETE for dma completion status

Tested-by: Joel Fernandes <joelf@ti.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/edma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index 098a8da450f0..29fa35807f09 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -576,7 +576,7 @@ static enum dma_status edma_tx_status(struct dma_chan *chan,
 	unsigned long flags;
 
 	ret = dma_cookie_status(chan, cookie, txstate);
-	if (ret == DMA_SUCCESS || !txstate)
+	if (ret == DMA_COMPLETE || !txstate)
 		return ret;
 
 	spin_lock_irqsave(&echan->vchan.lock, flags);
-- 
cgit 


From 3ded1ad14fe5cdb190e9b30a95a859d21ebd9e65 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 14:06:24 +0530
Subject: dmaengine: imx-dma: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/imx-dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index 55852c026791..2af4028cc23e 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -771,7 +771,7 @@ static int imxdma_alloc_chan_resources(struct dma_chan *chan)
 		desc->desc.tx_submit = imxdma_tx_submit;
 		/* txd.flags will be overwritten in prep funcs */
 		desc->desc.flags = DMA_CTRL_ACK;
-		desc->status = DMA_SUCCESS;
+		desc->status = DMA_COMPLETE;
 
 		list_add_tail(&desc->node, &imxdmac->ld_free);
 		imxdmac->descs_allocated++;
-- 
cgit 


From 409bff6a0f46f7f49491d0bb61781487cb2b2f2c Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 14:07:06 +0530
Subject: dmaengine: imx-sdma: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/imx-sdma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index fc43603cf0bb..0e03b3146b32 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -638,7 +638,7 @@ static void mxc_sdma_handle_channel_normal(struct sdma_channel *sdmac)
 	if (error)
 		sdmac->status = DMA_ERROR;
 	else
-		sdmac->status = DMA_SUCCESS;
+		sdmac->status = DMA_COMPLETE;
 
 	dma_cookie_complete(&sdmac->desc);
 	if (sdmac->desc.callback)
-- 
cgit 


From 94e4c120c7661ff028be6337b05037bb1f153855 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 15:50:33 +0530
Subject: dmaengine: intel_mid_dma: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/intel_mid_dma.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/intel_mid_dma.c b/drivers/dma/intel_mid_dma.c
index a975ebebea8a..1aab8130efa1 100644
--- a/drivers/dma/intel_mid_dma.c
+++ b/drivers/dma/intel_mid_dma.c
@@ -309,7 +309,7 @@ static void midc_descriptor_complete(struct intel_mid_dma_chan *midc,
 		callback_txd(param_txd);
 	}
 	if (midc->raw_tfr) {
-		desc->status = DMA_SUCCESS;
+		desc->status = DMA_COMPLETE;
 		if (desc->lli != NULL) {
 			pci_pool_free(desc->lli_pool, desc->lli,
 						desc->lli_phys);
@@ -481,7 +481,7 @@ static enum dma_status intel_mid_dma_tx_status(struct dma_chan *chan,
 	enum dma_status ret;
 
 	ret = dma_cookie_status(chan, cookie, txstate);
-	if (ret != DMA_SUCCESS) {
+	if (ret != DMA_COMPLETE) {
 		spin_lock_bh(&midc->lock);
 		midc_scan_descriptors(to_middma_device(chan->device), midc);
 		spin_unlock_bh(&midc->lock);
-- 
cgit 


From 2f16f802c3ac9df779096e56f43668e1c8e90c68 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 20:48:52 +0530
Subject: dmaengine: ioat: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/ioat/dma.c    | 4 ++--
 drivers/dma/ioat/dma_v3.c | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index 5ff6fc1819dc..a0f0fce5a84e 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -733,7 +733,7 @@ ioat_dma_tx_status(struct dma_chan *c, dma_cookie_t cookie,
 	enum dma_status ret;
 
 	ret = dma_cookie_status(c, cookie, txstate);
-	if (ret == DMA_SUCCESS)
+	if (ret == DMA_COMPLETE)
 		return ret;
 
 	device->cleanup_fn((unsigned long) c);
@@ -859,7 +859,7 @@ int ioat_dma_self_test(struct ioatdma_device *device)
 
 	if (tmo == 0 ||
 	    dma->device_tx_status(dma_chan, cookie, NULL)
-					!= DMA_SUCCESS) {
+					!= DMA_COMPLETE) {
 		dev_err(dev, "Self-test copy timed out, disabling\n");
 		err = -ENODEV;
 		goto unmap_dma;
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index d8ececaf1b57..806b4ce5e38c 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -807,7 +807,7 @@ ioat3_tx_status(struct dma_chan *c, dma_cookie_t cookie,
 	enum dma_status ret;
 
 	ret = dma_cookie_status(c, cookie, txstate);
-	if (ret == DMA_SUCCESS)
+	if (ret == DMA_COMPLETE)
 		return ret;
 
 	ioat3_cleanup(ioat);
@@ -1468,7 +1468,7 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
 
 	tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
 
-	if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_SUCCESS) {
+	if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
 		dev_err(dev, "Self-test xor timed out\n");
 		err = -ENODEV;
 		goto dma_unmap;
@@ -1530,7 +1530,7 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
 
 	tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
 
-	if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_SUCCESS) {
+	if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
 		dev_err(dev, "Self-test validate timed out\n");
 		err = -ENODEV;
 		goto dma_unmap;
@@ -1577,7 +1577,7 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
 
 	tmo = wait_for_completion_timeout(&cmp, msecs_to_jiffies(3000));
 
-	if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_SUCCESS) {
+	if (dma->device_tx_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
 		dev_err(dev, "Self-test 2nd validate timed out\n");
 		err = -ENODEV;
 		goto dma_unmap;
-- 
cgit 


From 9f571502d8327db60af8e7dec39fafc3397cedd1 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 20:49:42 +0530
Subject: dmaengine: iop: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/iop-adma.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c
index dd8b44a56e5d..408fe6be15f4 100644
--- a/drivers/dma/iop-adma.c
+++ b/drivers/dma/iop-adma.c
@@ -864,7 +864,7 @@ static enum dma_status iop_adma_status(struct dma_chan *chan,
 	int ret;
 
 	ret = dma_cookie_status(chan, cookie, txstate);
-	if (ret == DMA_SUCCESS)
+	if (ret == DMA_COMPLETE)
 		return ret;
 
 	iop_adma_slot_cleanup(iop_chan);
@@ -983,7 +983,7 @@ static int iop_adma_memcpy_self_test(struct iop_adma_device *device)
 	msleep(1);
 
 	if (iop_adma_status(dma_chan, cookie, NULL) !=
-			DMA_SUCCESS) {
+			DMA_COMPLETE) {
 		dev_err(dma_chan->device->dev,
 			"Self-test copy timed out, disabling\n");
 		err = -ENODEV;
@@ -1083,7 +1083,7 @@ iop_adma_xor_val_self_test(struct iop_adma_device *device)
 	msleep(8);
 
 	if (iop_adma_status(dma_chan, cookie, NULL) !=
-		DMA_SUCCESS) {
+		DMA_COMPLETE) {
 		dev_err(dma_chan->device->dev,
 			"Self-test xor timed out, disabling\n");
 		err = -ENODEV;
@@ -1129,7 +1129,7 @@ iop_adma_xor_val_self_test(struct iop_adma_device *device)
 	iop_adma_issue_pending(dma_chan);
 	msleep(8);
 
-	if (iop_adma_status(dma_chan, cookie, NULL) != DMA_SUCCESS) {
+	if (iop_adma_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
 		dev_err(dma_chan->device->dev,
 			"Self-test zero sum timed out, disabling\n");
 		err = -ENODEV;
@@ -1158,7 +1158,7 @@ iop_adma_xor_val_self_test(struct iop_adma_device *device)
 	iop_adma_issue_pending(dma_chan);
 	msleep(8);
 
-	if (iop_adma_status(dma_chan, cookie, NULL) != DMA_SUCCESS) {
+	if (iop_adma_status(dma_chan, cookie, NULL) != DMA_COMPLETE) {
 		dev_err(dma_chan->device->dev,
 			"Self-test non-zero sum timed out, disabling\n");
 		err = -ENODEV;
@@ -1254,7 +1254,7 @@ iop_adma_pq_zero_sum_self_test(struct iop_adma_device *device)
 	msleep(8);
 
 	if (iop_adma_status(dma_chan, cookie, NULL) !=
-		DMA_SUCCESS) {
+		DMA_COMPLETE) {
 		dev_err(dev, "Self-test pq timed out, disabling\n");
 		err = -ENODEV;
 		goto free_resources;
@@ -1291,7 +1291,7 @@ iop_adma_pq_zero_sum_self_test(struct iop_adma_device *device)
 	msleep(8);
 
 	if (iop_adma_status(dma_chan, cookie, NULL) !=
-		DMA_SUCCESS) {
+		DMA_COMPLETE) {
 		dev_err(dev, "Self-test pq-zero-sum timed out, disabling\n");
 		err = -ENODEV;
 		goto free_resources;
@@ -1323,7 +1323,7 @@ iop_adma_pq_zero_sum_self_test(struct iop_adma_device *device)
 	msleep(8);
 
 	if (iop_adma_status(dma_chan, cookie, NULL) !=
-		DMA_SUCCESS) {
+		DMA_COMPLETE) {
 		dev_err(dev, "Self-test !pq-zero-sum timed out, disabling\n");
 		err = -ENODEV;
 		goto free_resources;
-- 
cgit 


From bd2c348e569f855f22331f351d1f0c6578cee4fb Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 20:50:09 +0530
Subject: dmaengine: k3dma: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/k3dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/k3dma.c b/drivers/dma/k3dma.c
index da430623fbc4..e26075408e9b 100644
--- a/drivers/dma/k3dma.c
+++ b/drivers/dma/k3dma.c
@@ -344,7 +344,7 @@ static enum dma_status k3_dma_tx_status(struct dma_chan *chan,
 	size_t bytes = 0;
 
 	ret = dma_cookie_status(&c->vc.chan, cookie, state);
-	if (ret == DMA_SUCCESS)
+	if (ret == DMA_COMPLETE)
 		return ret;
 
 	spin_lock_irqsave(&c->vc.lock, flags);
-- 
cgit 


From f64eabd0b771851f4716ddc98680e09ed9e5775e Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 20:50:36 +0530
Subject: dmaengine: mmp_tdma: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Zhangfei Gao <zhangfei.gao@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/mmp_tdma.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index 8f3e865053d4..2b4026d1f31d 100644
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -163,7 +163,7 @@ static void mmp_tdma_disable_chan(struct mmp_tdma_chan *tdmac)
 	/* disable irq */
 	writel(0, tdmac->reg_base + TDIMR);
 
-	tdmac->status = DMA_SUCCESS;
+	tdmac->status = DMA_COMPLETE;
 }
 
 static void mmp_tdma_resume_chan(struct mmp_tdma_chan *tdmac)
@@ -398,7 +398,7 @@ static struct dma_async_tx_descriptor *mmp_tdma_prep_dma_cyclic(
 	int num_periods = buf_len / period_len;
 	int i = 0, buf = 0;
 
-	if (tdmac->status != DMA_SUCCESS)
+	if (tdmac->status != DMA_COMPLETE)
 		return NULL;
 
 	if (period_len > TDMA_MAX_XFER_BYTES) {
@@ -532,7 +532,7 @@ static int mmp_tdma_chan_init(struct mmp_tdma_device *tdev,
 	tdmac->idx	   = idx;
 	tdmac->type	   = type;
 	tdmac->reg_base	   = (unsigned long)tdev->base + idx * 4;
-	tdmac->status = DMA_SUCCESS;
+	tdmac->status = DMA_COMPLETE;
 	tdev->tdmac[tdmac->idx] = tdmac;
 	tasklet_init(&tdmac->tasklet, dma_do_tasklet, (unsigned long)tdmac);
 
-- 
cgit 


From b3efb8fc9a7e90fb0affbea8dca0f75b21141229 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 20:51:04 +0530
Subject: dmaengine: mv_xor: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/mv_xor.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index 536dcb8ba5fd..8d5bce9e867e 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -749,7 +749,7 @@ static enum dma_status mv_xor_status(struct dma_chan *chan,
 	enum dma_status ret;
 
 	ret = dma_cookie_status(chan, cookie, txstate);
-	if (ret == DMA_SUCCESS) {
+	if (ret == DMA_COMPLETE) {
 		mv_xor_clean_completed_slots(mv_chan);
 		return ret;
 	}
@@ -874,7 +874,7 @@ static int mv_xor_memcpy_self_test(struct mv_xor_chan *mv_chan)
 	msleep(1);
 
 	if (mv_xor_status(dma_chan, cookie, NULL) !=
-	    DMA_SUCCESS) {
+	    DMA_COMPLETE) {
 		dev_err(dma_chan->device->dev,
 			"Self-test copy timed out, disabling\n");
 		err = -ENODEV;
@@ -968,7 +968,7 @@ mv_xor_xor_self_test(struct mv_xor_chan *mv_chan)
 	msleep(8);
 
 	if (mv_xor_status(dma_chan, cookie, NULL) !=
-	    DMA_SUCCESS) {
+	    DMA_COMPLETE) {
 		dev_err(dma_chan->device->dev,
 			"Self-test xor timed out, disabling\n");
 		err = -ENODEV;
-- 
cgit 


From 2737583ea068b8e56f9d34b73a5860dc25227a73 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 20:51:30 +0530
Subject: dmaengine: mxs-dma: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/mxs-dma.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c
index ccd13df841db..7ab7cecc48a4 100644
--- a/drivers/dma/mxs-dma.c
+++ b/drivers/dma/mxs-dma.c
@@ -224,7 +224,7 @@ static void mxs_dma_enable_chan(struct mxs_dma_chan *mxs_chan)
 
 static void mxs_dma_disable_chan(struct mxs_dma_chan *mxs_chan)
 {
-	mxs_chan->status = DMA_SUCCESS;
+	mxs_chan->status = DMA_COMPLETE;
 }
 
 static void mxs_dma_pause_chan(struct mxs_dma_chan *mxs_chan)
@@ -312,12 +312,12 @@ static irqreturn_t mxs_dma_int_handler(int irq, void *dev_id)
 			if (mxs_chan->flags & MXS_DMA_SG_LOOP)
 				mxs_chan->status = DMA_IN_PROGRESS;
 			else
-				mxs_chan->status = DMA_SUCCESS;
+				mxs_chan->status = DMA_COMPLETE;
 		}
 
 		stat1 &= ~(1 << channel);
 
-		if (mxs_chan->status == DMA_SUCCESS)
+		if (mxs_chan->status == DMA_COMPLETE)
 			dma_cookie_complete(&mxs_chan->desc);
 
 		/* schedule tasklet on this channel */
-- 
cgit 


From 7cce5083b738e3e693abe082d9958686bcb88d32 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 20:51:54 +0530
Subject: dmaengine: omap: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/omap-dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/omap-dma.c b/drivers/dma/omap-dma.c
index ec3fc4fd9160..2f66cf4e54fe 100644
--- a/drivers/dma/omap-dma.c
+++ b/drivers/dma/omap-dma.c
@@ -248,7 +248,7 @@ static enum dma_status omap_dma_tx_status(struct dma_chan *chan,
 	unsigned long flags;
 
 	ret = dma_cookie_status(chan, cookie, txstate);
-	if (ret == DMA_SUCCESS || !txstate)
+	if (ret == DMA_COMPLETE || !txstate)
 		return ret;
 
 	spin_lock_irqsave(&c->vc.lock, flags);
-- 
cgit 


From 5738992b078140267f6637f9f929ec7581f6213e Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 20:52:38 +0530
Subject: dmaengine: ppc4xx: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/ppc4xx/adma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/ppc4xx/adma.c b/drivers/dma/ppc4xx/adma.c
index 370ff8265630..60e02ae38b04 100644
--- a/drivers/dma/ppc4xx/adma.c
+++ b/drivers/dma/ppc4xx/adma.c
@@ -3891,7 +3891,7 @@ static enum dma_status ppc440spe_adma_tx_status(struct dma_chan *chan,
 
 	ppc440spe_chan = to_ppc440spe_adma_chan(chan);
 	ret = dma_cookie_status(chan, cookie, txstate);
-	if (ret == DMA_SUCCESS)
+	if (ret == DMA_COMPLETE)
 		return ret;
 
 	ppc440spe_adma_slot_cleanup(ppc440spe_chan);
-- 
cgit 


From fdebb7681caaa5f16aaa2efa29e3931fb01b9e80 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 21:03:47 +0530
Subject: dmaengine: sa11x0: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/sa11x0-dma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/sa11x0-dma.c b/drivers/dma/sa11x0-dma.c
index 461a91ab70bb..ab26d46bbe15 100644
--- a/drivers/dma/sa11x0-dma.c
+++ b/drivers/dma/sa11x0-dma.c
@@ -436,7 +436,7 @@ static enum dma_status sa11x0_dma_tx_status(struct dma_chan *chan,
 	enum dma_status ret;
 
 	ret = dma_cookie_status(&c->vc.chan, cookie, state);
-	if (ret == DMA_SUCCESS)
+	if (ret == DMA_COMPLETE)
 		return ret;
 
 	if (!state)
-- 
cgit 


From a8d8d268c1b201eb8449cebf4d5958c34dbc3ccc Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 21:04:06 +0530
Subject: dmaengine: sh: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/sh/shdma-base.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/sh/shdma-base.c b/drivers/dma/sh/shdma-base.c
index d94ab592cc1b..2e7b394def80 100644
--- a/drivers/dma/sh/shdma-base.c
+++ b/drivers/dma/sh/shdma-base.c
@@ -724,7 +724,7 @@ static enum dma_status shdma_tx_status(struct dma_chan *chan,
 	 * If we don't find cookie on the queue, it has been aborted and we have
 	 * to report error
 	 */
-	if (status != DMA_SUCCESS) {
+	if (status != DMA_COMPLETE) {
 		struct shdma_desc *sdesc;
 		status = DMA_ERROR;
 		list_for_each_entry(sdesc, &schan->ld_queue, node)
-- 
cgit 


From e2360adb4a75a0cd05a7481219b2d7318a062ce7 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 21:04:24 +0530
Subject: dmaengine: ste: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/ste_dma40.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 3d5e4ee94f5f..b8c031b7de4e 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -2627,7 +2627,7 @@ static enum dma_status d40_tx_status(struct dma_chan *chan,
 	}
 
 	ret = dma_cookie_status(chan, cookie, txstate);
-	if (ret != DMA_SUCCESS)
+	if (ret != DMA_COMPLETE)
 		dma_set_residue(txstate, stedma40_residue(chan));
 
 	if (d40_is_paused(d40c))
-- 
cgit 


From 00d696f5291a6c749511b0f3c884c5f6d00f7339 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 21:04:50 +0530
Subject: dmaengine: tegra: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/tegra20-apb-dma.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index 67a6752bf863..73654e33f13b 100644
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -570,7 +570,7 @@ static void handle_once_dma_done(struct tegra_dma_channel *tdc,
 
 	list_del(&sgreq->node);
 	if (sgreq->last_sg) {
-		dma_desc->dma_status = DMA_SUCCESS;
+		dma_desc->dma_status = DMA_COMPLETE;
 		dma_cookie_complete(&dma_desc->txd);
 		if (!dma_desc->cb_count)
 			list_add_tail(&dma_desc->cb_node, &tdc->cb_desc);
@@ -768,7 +768,7 @@ static enum dma_status tegra_dma_tx_status(struct dma_chan *dc,
 	unsigned int residual;
 
 	ret = dma_cookie_status(dc, cookie, txstate);
-	if (ret == DMA_SUCCESS)
+	if (ret == DMA_COMPLETE)
 		return ret;
 
 	spin_lock_irqsave(&tdc->lock, flags);
-- 
cgit 


From 8f1fd11489836dd2e6741a6e7e905b36b71cfa5f Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 21:05:16 +0530
Subject: dmaengine: txx9: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/txx9dmac.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/txx9dmac.c b/drivers/dma/txx9dmac.c
index 71e8e775189e..c2829b481bf2 100644
--- a/drivers/dma/txx9dmac.c
+++ b/drivers/dma/txx9dmac.c
@@ -962,8 +962,8 @@ txx9dmac_tx_status(struct dma_chan *chan, dma_cookie_t cookie,
 	enum dma_status ret;
 
 	ret = dma_cookie_status(chan, cookie, txstate);
-	if (ret == DMA_SUCCESS)
-		return DMA_SUCCESS;
+	if (ret == DMA_COMPLETE)
+		return DMA_COMPLETE;
 
 	spin_lock_bh(&dc->lock);
 	txx9dmac_scan_descriptors(dc);
-- 
cgit 


From 157efa8cfa783aaceaeafbc75f536ed7d32f5dae Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 21:05:50 +0530
Subject: async_tx: use DMA_COMPLETE for dma completion status

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 crypto/async_tx/async_tx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/crypto/async_tx/async_tx.c b/crypto/async_tx/async_tx.c
index 7be34248b450..39ea4791a3c9 100644
--- a/crypto/async_tx/async_tx.c
+++ b/crypto/async_tx/async_tx.c
@@ -128,7 +128,7 @@ async_tx_channel_switch(struct dma_async_tx_descriptor *depend_tx,
 		}
 		device->device_issue_pending(chan);
 	} else {
-		if (dma_wait_for_async_tx(depend_tx) != DMA_SUCCESS)
+		if (dma_wait_for_async_tx(depend_tx) != DMA_COMPLETE)
 			panic("%s: DMA error waiting for depend_tx\n",
 			      __func__);
 		tx->tx_submit(tx);
@@ -280,7 +280,7 @@ void async_tx_quiesce(struct dma_async_tx_descriptor **tx)
 		 * we are referring to the correct operation
 		 */
 		BUG_ON(async_tx_test_ack(*tx));
-		if (dma_wait_for_async_tx(*tx) != DMA_SUCCESS)
+		if (dma_wait_for_async_tx(*tx) != DMA_COMPLETE)
 			panic("%s: DMA error waiting for transaction\n",
 			      __func__);
 		async_tx_ack(*tx);
-- 
cgit 


From 0b3d7d39f52bf7b58c956845e2d551487df875da Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 21:06:19 +0530
Subject: serial: sh: use DMA_COMPLETE for dma completion status

Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/tty/serial/sh-sci.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
index 537750261aaa..7d8103cd3e2e 100644
--- a/drivers/tty/serial/sh-sci.c
+++ b/drivers/tty/serial/sh-sci.c
@@ -1433,7 +1433,7 @@ static void work_fn_rx(struct work_struct *work)
 	desc = s->desc_rx[new];
 
 	if (dma_async_is_tx_complete(s->chan_rx, s->active_rx, NULL, NULL) !=
-	    DMA_SUCCESS) {
+	    DMA_COMPLETE) {
 		/* Handle incomplete DMA receive */
 		struct dma_chan *chan = s->chan_rx;
 		struct shdma_desc *sh_desc = container_of(desc,
-- 
cgit 


From 27bf69708394ca270f9ec53875aa7309c86dfc1d Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 16 Oct 2013 21:07:39 +0530
Subject: net: use DMA_COMPLETE for dma completion status

Acked-by: David S. Miller <davem@davemloft.net>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 net/ipv4/tcp.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 6e5617b9f9db..d2652fb3232e 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1429,7 +1429,7 @@ static void tcp_service_net_dma(struct sock *sk, bool wait)
 	do {
 		if (dma_async_is_tx_complete(tp->ucopy.dma_chan,
 					      last_issued, &done,
-					      &used) == DMA_SUCCESS) {
+					      &used) == DMA_COMPLETE) {
 			/* Safe to free early-copied skbs now */
 			__skb_queue_purge(&sk->sk_async_wait_queue);
 			break;
@@ -1437,7 +1437,7 @@ static void tcp_service_net_dma(struct sock *sk, bool wait)
 			struct sk_buff *skb;
 			while ((skb = skb_peek(&sk->sk_async_wait_queue)) &&
 			       (dma_async_is_complete(skb->dma_cookie, done,
-						      used) == DMA_SUCCESS)) {
+						      used) == DMA_COMPLETE)) {
 				__skb_dequeue(&sk->sk_async_wait_queue);
 				kfree_skb(skb);
 			}
-- 
cgit 


From 7db5f7274a0b065abdc358be2a44b4a911d75707 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Thu, 17 Oct 2013 07:29:57 +0530
Subject: dmaengine: remove unused DMA_SUCCESS

after all the users are converted

Acked-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 include/linux/dmaengine.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 120e64c96478..4b460a683968 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -51,7 +51,7 @@ static inline int dma_submit_error(dma_cookie_t cookie)
  * @DMA_ERROR: transaction failed
  */
 enum dma_status {
-	DMA_SUCCESS = 0, DMA_COMPLETE = 0,
+	DMA_COMPLETE,
 	DMA_IN_PROGRESS,
 	DMA_PAUSED,
 	DMA_ERROR,
-- 
cgit 


From dcdfff65276fdc6dfe5eb1d0aff802dfa7a95e15 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Tue, 22 Oct 2013 20:56:10 +0900
Subject: f2fs: clean up several status-related operations

This patch cleans up improper definitions that update some status information.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/checkpoint.c |  8 ++------
 fs/f2fs/data.c       | 12 +++---------
 fs/f2fs/f2fs.h       | 18 +++++++++++++++++-
 fs/f2fs/gc.c         |  4 +---
 fs/f2fs/segment.c    | 10 ++++------
 5 files changed, 27 insertions(+), 25 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 6fb484c84ee7..b4a59cf99f1c 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -467,9 +467,7 @@ static int __add_dirty_inode(struct inode *inode, struct dir_inode_entry *new)
 			return -EEXIST;
 	}
 	list_add_tail(&new->list, head);
-#ifdef CONFIG_F2FS_STAT_FS
-	sbi->n_dirty_dirs++;
-#endif
+	stat_inc_dirty_dir(sbi);
 	return 0;
 }
 
@@ -531,9 +529,7 @@ void remove_dirty_dir_inode(struct inode *inode)
 		if (entry->inode == inode) {
 			list_del(&entry->list);
 			kmem_cache_free(inode_entry_slab, entry);
-#ifdef CONFIG_F2FS_STAT_FS
-			sbi->n_dirty_dirs--;
-#endif
+			stat_dec_dirty_dir(sbi);
 			break;
 		}
 	}
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 2535d3b1a763..1cccf98f0e4d 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -68,9 +68,6 @@ static int check_extent_cache(struct inode *inode, pgoff_t pgofs,
 					struct buffer_head *bh_result)
 {
 	struct f2fs_inode_info *fi = F2FS_I(inode);
-#ifdef CONFIG_F2FS_STAT_FS
-	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
-#endif
 	pgoff_t start_fofs, end_fofs;
 	block_t start_blkaddr;
 
@@ -80,9 +77,8 @@ static int check_extent_cache(struct inode *inode, pgoff_t pgofs,
 		return 0;
 	}
 
-#ifdef CONFIG_F2FS_STAT_FS
-	sbi->total_hit_ext++;
-#endif
+	stat_inc_total_hit(inode->i_sb);
+
 	start_fofs = fi->ext.fofs;
 	end_fofs = fi->ext.fofs + fi->ext.len - 1;
 	start_blkaddr = fi->ext.blk_addr;
@@ -100,9 +96,7 @@ static int check_extent_cache(struct inode *inode, pgoff_t pgofs,
 		else
 			bh_result->b_size = UINT_MAX;
 
-#ifdef CONFIG_F2FS_STAT_FS
-		sbi->read_hit_ext++;
-#endif
+		stat_inc_read_hit(inode->i_sb);
 		read_unlock(&fi->ext.ext_lock);
 		return 1;
 	}
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 29492754bd7d..7ca8c30d8d76 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1155,7 +1155,16 @@ static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
 	return (struct f2fs_stat_info*)sbi->stat_info;
 }
 
-#define stat_inc_call_count(si)	((si)->call_count++)
+#define stat_inc_call_count(si)		((si)->call_count++)
+#define stat_inc_bggc_count(sbi)	((sbi)->bg_gc++)
+#define stat_inc_dirty_dir(sbi)		((sbi)->n_dirty_dirs++)
+#define stat_dec_dirty_dir(sbi)		((sbi)->n_dirty_dirs--)
+#define stat_inc_total_hit(sb)		((F2FS_SB(sb))->total_hit_ext++)
+#define stat_inc_read_hit(sb)		((F2FS_SB(sb))->read_hit_ext++)
+#define stat_inc_seg_type(sbi, curseg)					\
+		((sbi)->segment_count[(curseg)->alloc_type]++)
+#define stat_inc_block_count(sbi, curseg)				\
+		((sbi)->block_count[(curseg)->alloc_type]++)
 
 #define stat_inc_seg_count(sbi, type)					\
 	do {								\
@@ -1190,6 +1199,13 @@ void __init f2fs_create_root_stats(void);
 void f2fs_destroy_root_stats(void);
 #else
 #define stat_inc_call_count(si)
+#define stat_inc_bggc_count(si)
+#define stat_inc_dirty_dir(sbi)
+#define stat_dec_dirty_dir(sbi)
+#define stat_inc_total_hit(sb)
+#define stat_inc_read_hit(sb)
+#define stat_inc_seg_type(sbi, curseg)
+#define stat_inc_block_count(sbi, curseg)
 #define stat_inc_seg_count(si, type)
 #define stat_inc_tot_blk_count(si, blks)
 #define stat_inc_data_blk_count(si, blks)
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 7914b92a6967..cb286d7b02b2 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -77,9 +77,7 @@ static int gc_thread_func(void *data)
 		else
 			wait_ms = increase_sleep_time(gc_th, wait_ms);
 
-#ifdef CONFIG_F2FS_STAT_FS
-		sbi->bg_gc++;
-#endif
+		stat_inc_bggc_count(sbi);
 
 		/* if return value is not zero, no victim was selected */
 		if (f2fs_gc(sbi))
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 8ac161965242..177a33b16b2c 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -554,9 +554,8 @@ static void allocate_segment_by_default(struct f2fs_sb_info *sbi,
 		change_curseg(sbi, type, true);
 	else
 		new_curseg(sbi, type, false);
-#ifdef CONFIG_F2FS_STAT_FS
-	sbi->segment_count[curseg->alloc_type]++;
-#endif
+
+	stat_inc_seg_type(sbi, curseg);
 }
 
 void allocate_new_segments(struct f2fs_sb_info *sbi)
@@ -811,9 +810,8 @@ static void do_write_page(struct f2fs_sb_info *sbi, struct page *page,
 
 	mutex_lock(&sit_i->sentry_lock);
 	__refresh_next_blkoff(sbi, curseg);
-#ifdef CONFIG_F2FS_STAT_FS
-	sbi->block_count[curseg->alloc_type]++;
-#endif
+
+	stat_inc_block_count(sbi, curseg);
 
 	/*
 	 * SIT information should be updated before segment allocation,
-- 
cgit 


From aabe51364f44681cbd83fb1c27ef7d3dbe567c45 Mon Sep 17 00:00:00 2001
From: Haicheng Li <haicheng.li@linux.intel.com>
Date: Wed, 23 Oct 2013 12:39:32 +0800
Subject: f2fs: use bool for booleans

Signed-off-by: Haicheng Li <haicheng.li@linux.intel.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/checkpoint.c | 4 ++--
 fs/f2fs/f2fs.h       | 4 ++--
 fs/f2fs/node.c       | 4 ++--
 fs/f2fs/recovery.c   | 8 ++++----
 fs/f2fs/super.c      | 2 +-
 5 files changed, 11 insertions(+), 11 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index b4a59cf99f1c..5649a9d8e942 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -275,7 +275,7 @@ int recover_orphan_inodes(struct f2fs_sb_info *sbi)
 	if (!is_set_ckpt_flags(F2FS_CKPT(sbi), CP_ORPHAN_PRESENT_FLAG))
 		return 0;
 
-	sbi->por_doing = 1;
+	sbi->por_doing = true;
 	start_blk = __start_cp_addr(sbi) + 1;
 	orphan_blkaddr = __start_sum_addr(sbi) - 1;
 
@@ -292,7 +292,7 @@ int recover_orphan_inodes(struct f2fs_sb_info *sbi)
 	}
 	/* clear Orphan Flag */
 	clear_ckpt_flags(F2FS_CKPT(sbi), CP_ORPHAN_PRESENT_FLAG);
-	sbi->por_doing = 0;
+	sbi->por_doing = false;
 	return 0;
 }
 
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 7ca8c30d8d76..e8f3fd345ca3 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -361,8 +361,8 @@ struct f2fs_sb_info {
 	struct rw_semaphore cp_rwsem;		/* blocking FS operations */
 	struct mutex node_write;		/* locking node writes */
 	struct mutex writepages;		/* mutex for writepages() */
-	int por_doing;				/* recovery is doing or not */
-	int on_build_free_nids;			/* build_free_nids is doing */
+	bool por_doing;				/* recovery is doing or not */
+	bool on_build_free_nids;		/* build_free_nids is doing */
 	struct task_struct *cp_task;		/* checkpoint task */
 
 	/* for orphan inode management */
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 4fa3fd5def34..cc119b65a0d3 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1439,9 +1439,9 @@ retry:
 
 	/* Let's scan nat pages and its caches to get free nids */
 	mutex_lock(&nm_i->build_lock);
-	sbi->on_build_free_nids = 1;
+	sbi->on_build_free_nids = true;
 	build_free_nids(sbi);
-	sbi->on_build_free_nids = 0;
+	sbi->on_build_free_nids = false;
 	mutex_unlock(&nm_i->build_lock);
 	goto retry;
 }
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index 353cf4f66c7b..b278c68b3e08 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -425,7 +425,7 @@ int recover_fsync_data(struct f2fs_sb_info *sbi)
 {
 	struct list_head inode_list;
 	int err;
-	int need_writecp = 0;
+	bool need_writecp = false;
 
 	fsync_entry_slab = f2fs_kmem_cache_create("f2fs_fsync_inode_entry",
 			sizeof(struct fsync_inode_entry), NULL);
@@ -435,7 +435,7 @@ int recover_fsync_data(struct f2fs_sb_info *sbi)
 	INIT_LIST_HEAD(&inode_list);
 
 	/* step #1: find fsynced inode numbers */
-	sbi->por_doing = 1;
+	sbi->por_doing = true;
 	err = find_fsync_dnodes(sbi, &inode_list);
 	if (err)
 		goto out;
@@ -443,7 +443,7 @@ int recover_fsync_data(struct f2fs_sb_info *sbi)
 	if (list_empty(&inode_list))
 		goto out;
 
-	need_writecp = 1;
+	need_writecp = true;
 
 	/* step #2: recover data */
 	err = recover_data(sbi, &inode_list, CURSEG_WARM_NODE);
@@ -451,7 +451,7 @@ int recover_fsync_data(struct f2fs_sb_info *sbi)
 out:
 	destroy_fsync_dnodes(&inode_list);
 	kmem_cache_destroy(fsync_entry_slab);
-	sbi->por_doing = 0;
+	sbi->por_doing = false;
 	if (!err && need_writecp)
 		write_checkpoint(sbi, false);
 	return err;
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 692f35fbae1a..9a094596fd21 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -850,7 +850,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
 	mutex_init(&sbi->writepages);
 	mutex_init(&sbi->cp_mutex);
 	mutex_init(&sbi->node_write);
-	sbi->por_doing = 0;
+	sbi->por_doing = false;
 	spin_lock_init(&sbi->stat_lock);
 	init_rwsem(&sbi->bio_sem);
 	init_rwsem(&sbi->cp_rwsem);
-- 
cgit 


From 81eb8d6e2869b119d4a7b8c02091c3779733a3ac Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Thu, 24 Oct 2013 13:31:34 +0900
Subject: f2fs: reclaim prefree segments periodically

Previously, f2fs postpones reclaiming prefree segments into free segments
as much as possible.
However, if user writes and deletes a bunch of data without any sync or fsync
calls, some flash storages can suffer from garbage collections.

So, this patch adds the reclaiming codes to f2fs_write_node_pages and background
GC thread.

If there are a lot of prefree segments, let's do checkpoint so that f2fs
submits discard commands for the prefree regions to the flash storage.

Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/f2fs.h    | 3 +++
 fs/f2fs/gc.c      | 5 +++++
 fs/f2fs/node.c    | 3 ++-
 fs/f2fs/segment.c | 1 +
 fs/f2fs/segment.h | 7 +++++++
 5 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index e8f3fd345ca3..6dff777cd94a 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -299,6 +299,9 @@ struct f2fs_sm_info {
 	unsigned int main_segments;	/* # of segments in main area */
 	unsigned int reserved_segments;	/* # of reserved segments */
 	unsigned int ovp_segments;	/* # of overprovision segments */
+
+	/* a threshold to reclaim prefree segments */
+	unsigned int rec_prefree_segments;
 };
 
 /*
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index cb286d7b02b2..783c6cc6253c 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -82,6 +82,11 @@ static int gc_thread_func(void *data)
 		/* if return value is not zero, no victim was selected */
 		if (f2fs_gc(sbi))
 			wait_ms = gc_th->no_gc_sleep_time;
+
+		/* balancing prefree segments */
+		if (excess_prefree_segs(sbi))
+			f2fs_sync_fs(sbi->sb, true);
+
 	} while (!kthread_should_stop());
 	return 0;
 }
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index cc119b65a0d3..89dd8a5a3ca3 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1206,7 +1206,8 @@ static int f2fs_write_node_pages(struct address_space *mapping,
 	long nr_to_write = wbc->nr_to_write;
 
 	/* First check balancing cached NAT entries */
-	if (try_to_free_nats(sbi, NAT_ENTRY_PER_BLOCK)) {
+	if (try_to_free_nats(sbi, NAT_ENTRY_PER_BLOCK) ||
+				excess_prefree_segs(sbi)) {
 		f2fs_sync_fs(sbi->sb, true);
 		return 0;
 	}
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 177a33b16b2c..62b52f2f293a 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1645,6 +1645,7 @@ int build_segment_manager(struct f2fs_sb_info *sbi)
 	sm_info->ovp_segments = le32_to_cpu(ckpt->overprov_segment_count);
 	sm_info->main_segments = le32_to_cpu(raw_super->segment_count_main);
 	sm_info->ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr);
+	sm_info->rec_prefree_segments = DEF_RECLAIM_PREFREE_SEGMENTS;
 
 	err = build_sit_info(sbi);
 	if (err)
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 7f94d78cda3d..abe7094c4f7a 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -14,6 +14,8 @@
 #define NULL_SEGNO			((unsigned int)(~0))
 #define NULL_SECNO			((unsigned int)(~0))
 
+#define DEF_RECLAIM_PREFREE_SEGMENTS	100	/* 200MB of prefree segments */
+
 /* L: Logical segment # in volume, R: Relative segment # in main area */
 #define GET_L2R_SEGNO(free_i, segno)	(segno - free_i->start_segno)
 #define GET_R2L_SEGNO(free_i, segno)	(segno + free_i->start_segno)
@@ -472,6 +474,11 @@ static inline bool has_not_enough_free_secs(struct f2fs_sb_info *sbi, int freed)
 						reserved_sections(sbi)));
 }
 
+static inline bool excess_prefree_segs(struct f2fs_sb_info *sbi)
+{
+	return (prefree_segments(sbi) > SM_I(sbi)->rec_prefree_segments);
+}
+
 static inline int utilization(struct f2fs_sb_info *sbi)
 {
 	return div_u64((u64)valid_user_blocks(sbi) * 100, sbi->user_block_count);
-- 
cgit 


From 4660f9c0fe484353b17a4b9d1cc2b036fa895f76 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Thu, 24 Oct 2013 14:19:18 +0900
Subject: f2fs: introduce f2fs_balance_fs_bg for some background jobs

This patch merges some background jobs into this new function.

Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/f2fs.h    |  2 ++
 fs/f2fs/gc.c      |  5 ++---
 fs/f2fs/node.c    | 10 +++-------
 fs/f2fs/segment.c |  8 ++++++++
 4 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 6dff777cd94a..a61cc5f84638 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -965,6 +965,7 @@ long f2fs_compat_ioctl(struct file *, unsigned int, unsigned long);
  */
 void f2fs_set_inode_flags(struct inode *);
 struct inode *f2fs_iget(struct super_block *, unsigned long);
+int try_to_free_nats(struct f2fs_sb_info *, int);
 void update_inode(struct inode *, struct page *);
 int update_inode_page(struct inode *);
 int f2fs_write_inode(struct inode *, struct writeback_control *);
@@ -1045,6 +1046,7 @@ void destroy_node_manager_caches(void);
  * segment.c
  */
 void f2fs_balance_fs(struct f2fs_sb_info *);
+void f2fs_balance_fs_bg(struct f2fs_sb_info *);
 void invalidate_blocks(struct f2fs_sb_info *, block_t);
 void clear_prefree_segments(struct f2fs_sb_info *);
 int npages_for_summary_flush(struct f2fs_sb_info *);
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 783c6cc6253c..b7ad1ec7e4cc 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -83,9 +83,8 @@ static int gc_thread_func(void *data)
 		if (f2fs_gc(sbi))
 			wait_ms = gc_th->no_gc_sleep_time;
 
-		/* balancing prefree segments */
-		if (excess_prefree_segs(sbi))
-			f2fs_sync_fs(sbi->sb, true);
+		/* balancing f2fs's metadata periodically */
+		f2fs_balance_fs_bg(sbi);
 
 	} while (!kthread_should_stop());
 	return 0;
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 89dd8a5a3ca3..7bac4815f1d6 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -240,7 +240,7 @@ retry:
 	write_unlock(&nm_i->nat_tree_lock);
 }
 
-static int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink)
+int try_to_free_nats(struct f2fs_sb_info *sbi, int nr_shrink)
 {
 	struct f2fs_nm_info *nm_i = NM_I(sbi);
 
@@ -1205,12 +1205,8 @@ static int f2fs_write_node_pages(struct address_space *mapping,
 	struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb);
 	long nr_to_write = wbc->nr_to_write;
 
-	/* First check balancing cached NAT entries */
-	if (try_to_free_nats(sbi, NAT_ENTRY_PER_BLOCK) ||
-				excess_prefree_segs(sbi)) {
-		f2fs_sync_fs(sbi->sb, true);
-		return 0;
-	}
+	/* balancing f2fs's metadata in background */
+	f2fs_balance_fs_bg(sbi);
 
 	/* collect a number of dirty node pages and write together */
 	if (get_pages(sbi, F2FS_DIRTY_NODES) < COLLECT_DIRTY_NODES)
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 62b52f2f293a..8e5ca2869913 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -36,6 +36,14 @@ void f2fs_balance_fs(struct f2fs_sb_info *sbi)
 	}
 }
 
+void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi)
+{
+	/* check the # of cached NAT entries and prefree segments */
+	if (try_to_free_nats(sbi, NAT_ENTRY_PER_BLOCK) ||
+				excess_prefree_segs(sbi))
+		f2fs_sync_fs(sbi->sb, true);
+}
+
 static void __locate_dirty_segment(struct f2fs_sb_info *sbi, unsigned int segno,
 		enum dirty_type dirty_type)
 {
-- 
cgit 


From ea91e9b043057d29e092dd4d0a13cd79b78fb5b5 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Thu, 24 Oct 2013 15:49:07 +0900
Subject: f2fs: add reclaiming control by sysfs

This patch adds a control method in sysfs to reclaim prefree segments.

Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 Documentation/filesystems/f2fs.txt |  6 +++++
 fs/f2fs/super.c                    | 50 +++++++++++++++++++++++++++-----------
 2 files changed, 42 insertions(+), 14 deletions(-)

diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt
index 3cd27bed6349..4c647c280dcc 100644
--- a/Documentation/filesystems/f2fs.txt
+++ b/Documentation/filesystems/f2fs.txt
@@ -164,6 +164,12 @@ Files in /sys/fs/f2fs/<devname>
                               gc_idle = 1 will select the Cost Benefit approach
                               & setting gc_idle = 2 will select the greedy aproach.
 
+ reclaim_segments             This parameter controls the number of prefree
+                              segments to be reclaimed. If the number of prefree
+			      segments is larger than this number, f2fs tries to
+			      conduct checkpoint to reclaim the prefree segments
+			      to free segments. By default, 100 segments, 200MB.
+
 ================================================================================
 USAGE
 ================================================================================
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 9a094596fd21..e42351cbe166 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -69,24 +69,40 @@ static match_table_t f2fs_tokens = {
 };
 
 /* Sysfs support for f2fs */
+enum {
+	GC_THREAD,	/* struct f2fs_gc_thread */
+	SM_INFO,	/* struct f2fs_sm_info */
+};
+
 struct f2fs_attr {
 	struct attribute attr;
 	ssize_t (*show)(struct f2fs_attr *, struct f2fs_sb_info *, char *);
 	ssize_t (*store)(struct f2fs_attr *, struct f2fs_sb_info *,
 			 const char *, size_t);
+	int struct_type;
 	int offset;
 };
 
+static unsigned char *__struct_ptr(struct f2fs_sb_info *sbi, int struct_type)
+{
+	if (struct_type == GC_THREAD)
+		return (unsigned char *)sbi->gc_thread;
+	else if (struct_type == SM_INFO)
+		return (unsigned char *)SM_I(sbi);
+	return NULL;
+}
+
 static ssize_t f2fs_sbi_show(struct f2fs_attr *a,
 			struct f2fs_sb_info *sbi, char *buf)
 {
-	struct f2fs_gc_kthread *gc_kth = sbi->gc_thread;
+	unsigned char *ptr = NULL;
 	unsigned int *ui;
 
-	if (!gc_kth)
+	ptr = __struct_ptr(sbi, a->struct_type);
+	if (!ptr)
 		return -EINVAL;
 
-	ui = (unsigned int *)(((char *)gc_kth) + a->offset);
+	ui = (unsigned int *)(ptr + a->offset);
 
 	return snprintf(buf, PAGE_SIZE, "%u\n", *ui);
 }
@@ -95,15 +111,16 @@ static ssize_t f2fs_sbi_store(struct f2fs_attr *a,
 			struct f2fs_sb_info *sbi,
 			const char *buf, size_t count)
 {
-	struct f2fs_gc_kthread *gc_kth = sbi->gc_thread;
+	unsigned char *ptr;
 	unsigned long t;
 	unsigned int *ui;
 	ssize_t ret;
 
-	if (!gc_kth)
+	ptr = __struct_ptr(sbi, a->struct_type);
+	if (!ptr)
 		return -EINVAL;
 
-	ui = (unsigned int *)(((char *)gc_kth) + a->offset);
+	ui = (unsigned int *)(ptr + a->offset);
 
 	ret = kstrtoul(skip_spaces(buf), 0, &t);
 	if (ret < 0)
@@ -139,21 +156,25 @@ static void f2fs_sb_release(struct kobject *kobj)
 	complete(&sbi->s_kobj_unregister);
 }
 
-#define F2FS_ATTR_OFFSET(_name, _mode, _show, _store, _elname) \
+#define F2FS_ATTR_OFFSET(_struct_type, _name, _mode, _show, _store, _offset) \
 static struct f2fs_attr f2fs_attr_##_name = {			\
 	.attr = {.name = __stringify(_name), .mode = _mode },	\
 	.show	= _show,					\
 	.store	= _store,					\
-	.offset = offsetof(struct f2fs_gc_kthread, _elname),	\
+	.struct_type = _struct_type,				\
+	.offset = _offset					\
 }
 
-#define F2FS_RW_ATTR(name, elname)	\
-	F2FS_ATTR_OFFSET(name, 0644, f2fs_sbi_show, f2fs_sbi_store, elname)
+#define F2FS_RW_ATTR(struct_type, struct_name, name, elname)	\
+	F2FS_ATTR_OFFSET(struct_type, name, 0644,		\
+		f2fs_sbi_show, f2fs_sbi_store,			\
+		offsetof(struct struct_name, elname))
 
-F2FS_RW_ATTR(gc_min_sleep_time, min_sleep_time);
-F2FS_RW_ATTR(gc_max_sleep_time, max_sleep_time);
-F2FS_RW_ATTR(gc_no_gc_sleep_time, no_gc_sleep_time);
-F2FS_RW_ATTR(gc_idle, gc_idle);
+F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_min_sleep_time, min_sleep_time);
+F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_max_sleep_time, max_sleep_time);
+F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_no_gc_sleep_time, no_gc_sleep_time);
+F2FS_RW_ATTR(GC_THREAD, f2fs_gc_kthread, gc_idle, gc_idle);
+F2FS_RW_ATTR(SM_INFO, f2fs_sm_info, reclaim_segments, rec_prefree_segments);
 
 #define ATTR_LIST(name) (&f2fs_attr_##name.attr)
 static struct attribute *f2fs_attrs[] = {
@@ -161,6 +182,7 @@ static struct attribute *f2fs_attrs[] = {
 	ATTR_LIST(gc_max_sleep_time),
 	ATTR_LIST(gc_no_gc_sleep_time),
 	ATTR_LIST(gc_idle),
+	ATTR_LIST(reclaim_segments),
 	NULL,
 };
 
-- 
cgit 


From e8d61a7488d06aba3e7226e3536a6a6e14391ce8 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao2.yu@samsung.com>
Date: Thu, 24 Oct 2013 15:08:28 +0800
Subject: f2fs: remove redundant set_page_dirty from write_compacted_summaries

Previously, set_page_dirty is called every time after writting one summary info
into compacted summary page,
To avoid redundant set_page_dirty, we only call set_page_dirty before release
page.

Signed-off-by: Yu Chao <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/segment.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 8e5ca2869913..487af619aeda 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1138,8 +1138,6 @@ static void write_compacted_summaries(struct f2fs_sb_info *sbi, block_t blkaddr)
 						SUM_JOURNAL_SIZE);
 	written_size += SUM_JOURNAL_SIZE;
 
-	set_page_dirty(page);
-
 	/* Step 3: write summary entries */
 	for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) {
 		unsigned short blkoff;
@@ -1158,18 +1156,20 @@ static void write_compacted_summaries(struct f2fs_sb_info *sbi, block_t blkaddr)
 			summary = (struct f2fs_summary *)(kaddr + written_size);
 			*summary = seg_i->sum_blk->entries[j];
 			written_size += SUMMARY_SIZE;
-			set_page_dirty(page);
 
 			if (written_size + SUMMARY_SIZE <= PAGE_CACHE_SIZE -
 							SUM_FOOTER_SIZE)
 				continue;
 
+			set_page_dirty(page);
 			f2fs_put_page(page, 1);
 			page = NULL;
 		}
 	}
-	if (page)
+	if (page) {
+		set_page_dirty(page);
 		f2fs_put_page(page, 1);
+	}
 }
 
 static void write_normal_summaries(struct f2fs_sb_info *sbi,
-- 
cgit 


From 26c6b8879911df991dc780c67eaeb84c7629949d Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Thu, 24 Oct 2013 17:53:29 +0900
Subject: f2fs: add tracepoint for set_page_dirty

This patch adds a tracepoint for set_page_dirty.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/checkpoint.c        |  2 ++
 fs/f2fs/data.c              |  2 ++
 fs/f2fs/node.c              |  2 ++
 include/trace/events/f2fs.h | 44 ++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 50 insertions(+)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 5649a9d8e942..6526f5010621 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -167,6 +167,8 @@ static int f2fs_set_meta_page_dirty(struct page *page)
 	struct address_space *mapping = page->mapping;
 	struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb);
 
+	trace_f2fs_set_page_dirty(page, META);
+
 	SetPageUptodate(page);
 	if (!PageDirty(page)) {
 		__set_page_dirty_nobuffers(page);
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 1cccf98f0e4d..c8887d847dcf 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -756,6 +756,8 @@ static int f2fs_set_data_page_dirty(struct page *page)
 	struct address_space *mapping = page->mapping;
 	struct inode *inode = mapping->host;
 
+	trace_f2fs_set_page_dirty(page, DATA);
+
 	SetPageUptodate(page);
 	if (!PageDirty(page)) {
 		__set_page_dirty_nobuffers(page);
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 7bac4815f1d6..304d5ced6355 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1225,6 +1225,8 @@ static int f2fs_set_node_page_dirty(struct page *page)
 	struct address_space *mapping = page->mapping;
 	struct f2fs_sb_info *sbi = F2FS_SB(mapping->host->i_sb);
 
+	trace_f2fs_set_page_dirty(page, NODE);
+
 	SetPageUptodate(page);
 	if (!PageDirty(page)) {
 		__set_page_dirty_nobuffers(page);
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index 52ae54828eda..ebde3afb89cd 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -36,6 +36,11 @@
 		{ CURSEG_COLD_NODE, 	"Cold NODE" },			\
 		{ NO_CHECK_TYPE, 	"No TYPE" })
 
+#define show_file_type(type)						\
+	__print_symbolic(type,						\
+		{ 0,		"FILE" },				\
+		{ 1,		"DIR" })
+
 #define show_gc_type(type)						\
 	__print_symbolic(type,						\
 		{ FG_GC,	"Foreground GC" },			\
@@ -623,6 +628,45 @@ TRACE_EVENT(f2fs_do_submit_bio,
 		__entry->size)
 );
 
+DECLARE_EVENT_CLASS(f2fs__page,
+
+	TP_PROTO(struct page *page, int type),
+
+	TP_ARGS(page, type),
+
+	TP_STRUCT__entry(
+		__field(dev_t,	dev)
+		__field(ino_t,	ino)
+		__field(int, type)
+		__field(int, dir)
+		__field(pgoff_t, index)
+		__field(int, dirty)
+	),
+
+	TP_fast_assign(
+		__entry->dev	= page->mapping->host->i_sb->s_dev;
+		__entry->ino	= page->mapping->host->i_ino;
+		__entry->type	= type;
+		__entry->dir	= S_ISDIR(page->mapping->host->i_mode);
+		__entry->index	= page->index;
+		__entry->dirty	= PageDirty(page);
+	),
+
+	TP_printk("dev = (%d,%d), ino = %lu, %s, %s, index = %lu, dirty = %d",
+		show_dev_ino(__entry),
+		show_block_type(__entry->type),
+		show_file_type(__entry->dir),
+		(unsigned long)__entry->index,
+		__entry->dirty)
+);
+
+DEFINE_EVENT(f2fs__page, f2fs_set_page_dirty,
+
+	TP_PROTO(struct page *page, int type),
+
+	TP_ARGS(page, type)
+);
+
 TRACE_EVENT(f2fs_submit_write_page,
 
 	TP_PROTO(struct page *page, block_t blk_addr, int type),
-- 
cgit 


From e943a10d94f6076f7bc8da91828cbdca5fbf62fc Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Fri, 25 Oct 2013 14:26:31 +0900
Subject: f2fs: add tracepoint for vm_page_mkwrite

This patch adds a tracepoint for f2fs_vm_page_mkwrite.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/file.c              | 1 +
 include/trace/events/f2fs.h | 7 +++++++
 2 files changed, 8 insertions(+)

diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index c80faa2fff39..2d4190a4abe3 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -88,6 +88,7 @@ static int f2fs_vm_page_mkwrite(struct vm_area_struct *vma,
 	set_page_dirty(page);
 	SetPageUptodate(page);
 
+	trace_f2fs_vm_page_mkwrite(page, DATA);
 mapped:
 	/* fill the page */
 	wait_on_page_writeback(page);
diff --git a/include/trace/events/f2fs.h b/include/trace/events/f2fs.h
index ebde3afb89cd..e0dc355fa317 100644
--- a/include/trace/events/f2fs.h
+++ b/include/trace/events/f2fs.h
@@ -667,6 +667,13 @@ DEFINE_EVENT(f2fs__page, f2fs_set_page_dirty,
 	TP_ARGS(page, type)
 );
 
+DEFINE_EVENT(f2fs__page, f2fs_vm_page_mkwrite,
+
+	TP_PROTO(struct page *page, int type),
+
+	TP_ARGS(page, type)
+);
+
 TRACE_EVENT(f2fs_submit_write_page,
 
 	TP_PROTO(struct page *page, block_t blk_addr, int type),
-- 
cgit 


From a1924d8a1da261293f81483fdad1e1af4ec47637 Mon Sep 17 00:00:00 2001
From: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Date: Fri, 25 Oct 2013 09:09:27 +0200
Subject: usb/gadget: f_mass_storage: use string literal as format in
 dev_set_name

Fix commit b27c08c953e994f792a03d9b7cbc5cf3f9844135 where dev_set_name()
is used without a string literal as format.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/f_mass_storage.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 8fa8b1f771fb..a03ba2c83589 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -2949,7 +2949,7 @@ int fsg_common_create_lun(struct fsg_common *common, struct fsg_lun_config *cfg,
 		lun->dev.release = fsg_lun_release;
 		lun->dev.parent = &common->gadget->dev;
 		dev_set_drvdata(&lun->dev, &common->filesem);
-		dev_set_name(&lun->dev, name);
+		dev_set_name(&lun->dev, "%s", name);
 		lun->name = dev_name(&lun->dev);
 
 		rc = fsg_common_add_sysfs(common, lun);
-- 
cgit 


From 99d8d3ba512810feb13e158042975dcda75cef31 Mon Sep 17 00:00:00 2001
From: Jean-Francois Moine <moinejf@free.fr>
Date: Thu, 24 Oct 2013 17:55:18 +0200
Subject: ASoC: kirkwood: Fix compile error due to patch 'add S/PDIF support'

This patch fixes the compilation error of kirkwood-i2s.c introduced
by the commit 75b9b65ee5a80e99e 'ASoC: kirkwood: add S/PDIF support'.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/kirkwood/kirkwood-i2s.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/kirkwood/kirkwood-i2s.c b/sound/soc/kirkwood/kirkwood-i2s.c
index 9ec38d15df9e..d34d91743e3f 100644
--- a/sound/soc/kirkwood/kirkwood-i2s.c
+++ b/sound/soc/kirkwood/kirkwood-i2s.c
@@ -568,7 +568,7 @@ static int kirkwood_i2s_dev_probe(struct platform_device *pdev)
 		} else {
 			dev_info(&pdev->dev, "found external clock\n");
 			clk_prepare_enable(priv->extclk);
-			soc_dai = &kirkwood_i2s_dai_extclk;
+			soc_dai = kirkwood_i2s_dai_extclk;
 		}
 	}
 
-- 
cgit 


From a6802e008e19845fd9669511b895f7515ef9c48b Mon Sep 17 00:00:00 2001
From: Forest Bond <forest.bond@rapidrollout.com>
Date: Mon, 21 Oct 2013 12:38:49 -0400
Subject: HID: hid-multitouch: add support for SiS panels

Add support for SiS multitouch panels.

Signed-off-by: Forest Bond <forest.bond@rapidrollout.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/Kconfig             | 1 +
 drivers/hid/hid-core.c          | 2 ++
 drivers/hid/hid-ids.h           | 4 ++++
 drivers/hid/hid-multitouch.c    | 8 ++++++++
 drivers/hid/usbhid/hid-quirks.c | 2 ++
 5 files changed, 17 insertions(+)

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 71b70e3a7a71..eb8c6278cfce 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -452,6 +452,7 @@ config HID_MULTITOUCH
 	  - Pixcir dual touch panels
 	  - Quanta panels
 	  - eGalax dual-touch panels, including the Joojoo and Wetab tablets
+	  - SiS multitouch panels
 	  - Stantum multitouch panels
 	  - Touch International Panels
 	  - Unitec Panels
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index b8470b1a10fe..825f9c3aadb1 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1814,6 +1814,8 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_SIS2_TOUCH, USB_DEVICE_ID_SIS9200_TOUCH) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_SIS2_TOUCH, USB_DEVICE_ID_SIS817_TOUCH) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 9a91dee2cfe9..842685a77e4b 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -748,6 +748,10 @@
 #define USB_VENDOR_ID_SIGMATEL		0x066F
 #define USB_DEVICE_ID_SIGMATEL_STMP3780	0x3780
 
+#define USB_VENDOR_ID_SIS2_TOUCH	0x0457
+#define USB_DEVICE_ID_SIS9200_TOUCH	0x9200
+#define USB_DEVICE_ID_SIS817_TOUCH	0x0817
+
 #define USB_VENDOR_ID_SKYCABLE			0x1223
 #define	USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER	0x3F07
 
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index cb3250c5a397..a2cedb8ae1c0 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -1299,6 +1299,14 @@ static const struct hid_device_id mt_devices[] = {
 		MT_USB_DEVICE(USB_VENDOR_ID_QUANTA,
 			USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008) },
 
+	/* SiS panels */
+	{ .driver_data = MT_CLS_DEFAULT,
+		HID_USB_DEVICE(USB_VENDOR_ID_SIS2_TOUCH,
+		USB_DEVICE_ID_SIS9200_TOUCH) },
+	{ .driver_data = MT_CLS_DEFAULT,
+		HID_USB_DEVICE(USB_VENDOR_ID_SIS2_TOUCH,
+		USB_DEVICE_ID_SIS817_TOUCH) },
+
 	/* Stantum panels */
 	{ .driver_data = MT_CLS_CONFIDENCE,
 		MT_USB_DEVICE(USB_VENDOR_ID_STANTUM,
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 07345521f421..ae5c63478b92 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -84,6 +84,8 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_REALTEK, USB_DEVICE_ID_REALTEK_READER, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_SENNHEISER, USB_DEVICE_ID_SENNHEISER_BTD500USB, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_SIGMATEL, USB_DEVICE_ID_SIGMATEL_STMP3780, HID_QUIRK_NOGET },
+	{ USB_VENDOR_ID_SIS2_TOUCH, USB_DEVICE_ID_SIS9200_TOUCH, HID_QUIRK_NOGET },
+	{ USB_VENDOR_ID_SIS2_TOUCH, USB_DEVICE_ID_SIS817_TOUCH, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_1, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_SYMBOL, USB_DEVICE_ID_SYMBOL_SCANNER_2, HID_QUIRK_NOGET },
-- 
cgit 


From e5f7825cda366809153701e8bb89123bd973be00 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Thu, 24 Oct 2013 21:53:29 -0700
Subject: spi/hspi: add device tree support

Support for loading the Renesas HSPI driver via devicetree.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 Documentation/devicetree/bindings/spi/sh-hspi.txt | 7 +++++++
 drivers/spi/spi-sh-hspi.c                         | 8 ++++++++
 2 files changed, 15 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/spi/sh-hspi.txt

diff --git a/Documentation/devicetree/bindings/spi/sh-hspi.txt b/Documentation/devicetree/bindings/spi/sh-hspi.txt
new file mode 100644
index 000000000000..30b57b1c8a13
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/sh-hspi.txt
@@ -0,0 +1,7 @@
+Renesas HSPI.
+
+Required properties:
+- compatible : 	"renesas,hspi"
+- reg : Offset and length of the register set for the device
+- interrupts : interrupt line used by HSPI
+
diff --git a/drivers/spi/spi-sh-hspi.c b/drivers/spi/spi-sh-hspi.c
index b9e7b5e61528..8a147d92f9eb 100644
--- a/drivers/spi/spi-sh-hspi.c
+++ b/drivers/spi/spi-sh-hspi.c
@@ -303,6 +303,7 @@ static int hspi_probe(struct platform_device *pdev)
 	master->setup		= hspi_setup;
 	master->cleanup		= hspi_cleanup;
 	master->mode_bits	= SPI_CPOL | SPI_CPHA;
+	master->dev.of_node	= pdev->dev.of_node;
 	master->auto_runtime_pm = true;
 	master->transfer_one_message		= hspi_transfer_one_message;
 	ret = spi_register_master(master);
@@ -333,12 +334,19 @@ static int hspi_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static struct of_device_id hspi_of_match[] = {
+	{ .compatible = "renesas,hspi", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, hspi_of_match);
+
 static struct platform_driver hspi_driver = {
 	.probe = hspi_probe,
 	.remove = hspi_remove,
 	.driver = {
 		.name = "sh-hspi",
 		.owner = THIS_MODULE,
+		.of_match_table = hspi_of_match,
 	},
 };
 module_platform_driver(hspi_driver);
-- 
cgit 


From f79666bbb4ba361aecd36e7796d3b41eee07876e Mon Sep 17 00:00:00 2001
From: Mike Miller <mike.miller@hp.com>
Date: Tue, 10 Sep 2013 13:18:23 -0500
Subject: [SCSI] hpsa: remove unused Smart Array ID

This patch removes the PCI ID of a cancelled Smart Array.

Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/hpsa.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 891c86b66253..fb5a89815150 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -100,7 +100,6 @@ static const struct pci_device_id hpsa_pci_device_id[] = {
 	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSF,     0x103C, 0x3354},
 	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSF,     0x103C, 0x3355},
 	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSF,     0x103C, 0x3356},
-	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSH,     0x103C, 0x1920},
 	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSH,     0x103C, 0x1921},
 	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSH,     0x103C, 0x1922},
 	{PCI_VENDOR_ID_HP,     PCI_DEVICE_ID_HP_CISSH,     0x103C, 0x1923},
-- 
cgit 


From 453193e042203e5437c744dd0861bdb3ddc10a0f Mon Sep 17 00:00:00 2001
From: Jon Mason <jdmason@kudzu.us>
Date: Wed, 11 Sep 2013 15:38:13 -0700
Subject: [SCSI] lpfc: remove unnecessary read of PCI_CAP_ID_EXP

The PCIE capability offset is saved during PCI bus walking.  It will
remove an unnecessary search in the PCI configuration space if this
value is referenced instead of reacquiring it.  Also, pci_is_pcie is a
better way of determining if the device is PCIE or not (as it uses the
same saved PCIE capability offset).

Signed-off-by: Jon Mason <jdmason@kudzu.us>
Acked-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/lpfc/lpfc_init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 647f5bfb3bd3..ca6bf2af7ce8 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -4545,7 +4545,7 @@ lpfc_enable_pci_dev(struct lpfc_hba *phba)
 	pci_save_state(pdev);
 
 	/* PCIe EEH recovery on powerpc platforms needs fundamental reset */
-	if (pci_find_capability(pdev, PCI_CAP_ID_EXP))
+	if (pci_is_pcie(pdev))
 		pdev->needs_freset = 1;
 
 	return 0;
-- 
cgit 


From 4df01b06ae4afdb233cc099051305d094f02e793 Mon Sep 17 00:00:00 2001
From: "Stewart, Sean" <Sean.Stewart@netapp.com>
Date: Wed, 11 Sep 2013 22:54:07 +0000
Subject: [SCSI] scsi_dh_rdac: Add new IBM 1813 product id to rdac devlist

Signed-off-by: Sean Stewart <Sean.Stewart@netapp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/device_handler/scsi_dh_rdac.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c
index 69c915aa77c2..4b9cf93f3fb6 100644
--- a/drivers/scsi/device_handler/scsi_dh_rdac.c
+++ b/drivers/scsi/device_handler/scsi_dh_rdac.c
@@ -786,6 +786,7 @@ static const struct scsi_dh_devlist rdac_dev_list[] = {
 	{"IBM", "1742"},
 	{"IBM", "1745"},
 	{"IBM", "1746"},
+	{"IBM", "1813"},
 	{"IBM", "1814"},
 	{"IBM", "1815"},
 	{"IBM", "1818"},
-- 
cgit 


From 522db3c9e1a5d3e9bfbf23d9106180651338d1bd Mon Sep 17 00:00:00 2001
From: Jack Wang <jinpu.wang@profitbricks.com>
Date: Thu, 12 Sep 2013 17:29:52 +0200
Subject: [SCSI] export device_busy for sdev

If you mutiple devices connect to a host, we might be interested in
have an intensive I/O workload on one disk, and notice starvation on others.
This give the user more hint about current infight io for scsi device.

Signed-off-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/scsi_sysfs.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index 40c639491b27..a73471074a02 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -529,6 +529,7 @@ static int scsi_sdev_check_buf_bit(const char *buf)
  */
 sdev_rd_attr (device_blocked, "%d\n");
 sdev_rd_attr (queue_depth, "%d\n");
+sdev_rd_attr (device_busy, "%d\n");
 sdev_rd_attr (type, "%d\n");
 sdev_rd_attr (scsi_level, "%d\n");
 sdev_rd_attr (vendor, "%.8s\n");
@@ -750,6 +751,7 @@ static struct attribute *scsi_sdev_attrs[] = {
 	&dev_attr_device_blocked.attr,
 	&dev_attr_type.attr,
 	&dev_attr_scsi_level.attr,
+	&dev_attr_device_busy.attr,
 	&dev_attr_vendor.attr,
 	&dev_attr_model.attr,
 	&dev_attr_rev.attr,
-- 
cgit 


From 441fbd25954c30d821187203f7dc941bf7b6d792 Mon Sep 17 00:00:00 2001
From: Narsimhulu Musini <nmusini@cisco.com>
Date: Thu, 12 Sep 2013 17:45:41 -0700
Subject: [SCSI] fnic: host reset returns nonzero value(errno) on success

Fixed appropriate error codes that returns negative error number on failure,
and 0 on success. fnic_reset() is used directly by the fc transport callback
issue_fc_host_lip which requires a negative error number on failure.

Signed-off-by: Narsimhulu Musini <nmusini@cisco.com>
Signed-off-by: Hiral Patel <hiralpat@cisco.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/fnic/fnic_scsi.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c
index d014aae19134..50f3b327bd1e 100644
--- a/drivers/scsi/fnic/fnic_scsi.c
+++ b/drivers/scsi/fnic/fnic_scsi.c
@@ -2207,7 +2207,7 @@ int fnic_reset(struct Scsi_Host *shost)
 {
 	struct fc_lport *lp;
 	struct fnic *fnic;
-	int ret = SUCCESS;
+	int ret = 0;
 
 	lp = shost_priv(shost);
 	fnic = lport_priv(lp);
@@ -2219,12 +2219,11 @@ int fnic_reset(struct Scsi_Host *shost)
 	 * Reset local port, this will clean up libFC exchanges,
 	 * reset remote port sessions, and if link is up, begin flogi
 	 */
-	if (lp->tt.lport_reset(lp))
-		ret = FAILED;
+	ret = lp->tt.lport_reset(lp);
 
 	FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host,
 		      "Returning from fnic reset %s\n",
-		      (ret == SUCCESS) ?
+		      (ret == 0) ?
 		      "SUCCESS" : "FAILED");
 
 	return ret;
@@ -2251,7 +2250,7 @@ int fnic_host_reset(struct scsi_cmnd *sc)
 	 * scsi-ml tries to send a TUR to every device if host reset is
 	 * successful, so before returning to scsi, fabric should be up
 	 */
-	ret = fnic_reset(shost);
+	ret = (fnic_reset(shost) == 0) ? SUCCESS : FAILED;
 	if (ret == SUCCESS) {
 		wait_host_tmo = jiffies + FNIC_HOST_RESET_SETTLE_TIME * HZ;
 		ret = FAILED;
-- 
cgit 


From 67125b0287a9e6506c4f5afca7376667bf6dab5b Mon Sep 17 00:00:00 2001
From: Hiral Patel <hiralpat@cisco.com>
Date: Thu, 12 Sep 2013 17:45:42 -0700
Subject: [SCSI] fnic: Fnic Statistics Collection

This feature gathers active and cumulative per fnic stats for io,
abort, terminate, reset, vlan discovery path and it also includes
various important stats for debugging issues. It also provided
debugfs and ioctl interface for user to retrieve these stats.
It also provides functionality to reset cumulative stats through
user interface.

Signed-off-by: Hiral Patel <hiralpat@cisco.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/fnic/fnic.h         |   8 +
 drivers/scsi/fnic/fnic_debugfs.c | 390 +++++++++++++++++++++++++++++++++++++--
 drivers/scsi/fnic/fnic_fcs.c     |  12 ++
 drivers/scsi/fnic/fnic_isr.c     |  18 ++
 drivers/scsi/fnic/fnic_main.c    |  19 ++
 drivers/scsi/fnic/fnic_scsi.c    | 244 ++++++++++++++++++++++--
 drivers/scsi/fnic/fnic_stats.h   | 116 ++++++++++++
 drivers/scsi/fnic/fnic_trace.c   | 185 +++++++++++++++++++
 drivers/scsi/fnic/fnic_trace.h   |   3 +-
 9 files changed, 971 insertions(+), 24 deletions(-)
 create mode 100644 drivers/scsi/fnic/fnic_stats.h

diff --git a/drivers/scsi/fnic/fnic.h b/drivers/scsi/fnic/fnic.h
index e4dd3d7cd236..db7a9506ccd3 100644
--- a/drivers/scsi/fnic/fnic.h
+++ b/drivers/scsi/fnic/fnic.h
@@ -27,6 +27,7 @@
 #include "fnic_io.h"
 #include "fnic_res.h"
 #include "fnic_trace.h"
+#include "fnic_stats.h"
 #include "vnic_dev.h"
 #include "vnic_wq.h"
 #include "vnic_rq.h"
@@ -232,6 +233,13 @@ struct fnic {
 	unsigned int wq_count;
 	unsigned int cq_count;
 
+	struct dentry *fnic_stats_debugfs_host;
+	struct dentry *fnic_stats_debugfs_file;
+	struct dentry *fnic_reset_debugfs_file;
+	unsigned int reset_stats;
+	atomic64_t io_cmpl_skip;
+	struct fnic_stats fnic_stats;
+
 	u32 vlan_hw_insert:1;	        /* let hw insert the tag */
 	u32 in_remove:1;                /* fnic device in removal */
 	u32 stop_rx_link_events:1;      /* stop proc. rx frames, link events */
diff --git a/drivers/scsi/fnic/fnic_debugfs.c b/drivers/scsi/fnic/fnic_debugfs.c
index cbcb0121c84d..b6073f875761 100644
--- a/drivers/scsi/fnic/fnic_debugfs.c
+++ b/drivers/scsi/fnic/fnic_debugfs.c
@@ -23,6 +23,58 @@
 static struct dentry *fnic_trace_debugfs_root;
 static struct dentry *fnic_trace_debugfs_file;
 static struct dentry *fnic_trace_enable;
+static struct dentry *fnic_stats_debugfs_root;
+
+/*
+ * fnic_debugfs_init - Initialize debugfs for fnic debug logging
+ *
+ * Description:
+ * When Debugfs is configured this routine sets up the fnic debugfs
+ * file system. If not already created, this routine will create the
+ * fnic directory and statistics directory for trace buffer and
+ * stats logging.
+ */
+int fnic_debugfs_init(void)
+{
+	int rc = -1;
+	fnic_trace_debugfs_root = debugfs_create_dir("fnic", NULL);
+	if (!fnic_trace_debugfs_root) {
+		printk(KERN_DEBUG "Cannot create debugfs root\n");
+		return rc;
+	}
+
+	if (!fnic_trace_debugfs_root) {
+		printk(KERN_DEBUG
+			"fnic root directory doesn't exist in debugfs\n");
+		return rc;
+	}
+
+	fnic_stats_debugfs_root = debugfs_create_dir("statistics",
+						fnic_trace_debugfs_root);
+	if (!fnic_stats_debugfs_root) {
+		printk(KERN_DEBUG "Cannot create Statistics directory\n");
+		return rc;
+	}
+
+	rc = 0;
+	return rc;
+}
+
+/*
+ * fnic_debugfs_terminate - Tear down debugfs infrastructure
+ *
+ * Description:
+ * When Debugfs is configured this routine removes debugfs file system
+ * elements that are specific to fnic.
+ */
+void fnic_debugfs_terminate(void)
+{
+	debugfs_remove(fnic_stats_debugfs_root);
+	fnic_stats_debugfs_root = NULL;
+
+	debugfs_remove(fnic_trace_debugfs_root);
+	fnic_trace_debugfs_root = NULL;
+}
 
 /*
  * fnic_trace_ctrl_open - Open the trace_enable file
@@ -241,16 +293,16 @@ static const struct file_operations fnic_trace_debugfs_fops = {
  * Description:
  * When Debugfs is configured this routine sets up the fnic debugfs
  * file system. If not already created, this routine will create the
- * fnic directory. It will create file trace to log fnic trace buffer
- * output into debugfs and it will also create file trace_enable to
- * control enable/disable of trace logging into trace buffer.
+ * create file trace to log fnic trace buffer output into debugfs and
+ * it will also create file trace_enable to control enable/disable of
+ * trace logging into trace buffer.
  */
 int fnic_trace_debugfs_init(void)
 {
 	int rc = -1;
-	fnic_trace_debugfs_root = debugfs_create_dir("fnic", NULL);
 	if (!fnic_trace_debugfs_root) {
-		printk(KERN_DEBUG "Cannot create debugfs root\n");
+		printk(KERN_DEBUG
+			"FNIC Debugfs root directory doesn't exist\n");
 		return rc;
 	}
 	fnic_trace_enable = debugfs_create_file("tracing_enable",
@@ -259,8 +311,8 @@ int fnic_trace_debugfs_init(void)
 					  NULL, &fnic_trace_ctrl_fops);
 
 	if (!fnic_trace_enable) {
-		printk(KERN_DEBUG "Cannot create trace_enable file"
-				  " under debugfs");
+		printk(KERN_DEBUG
+			"Cannot create trace_enable file under debugfs\n");
 		return rc;
 	}
 
@@ -271,7 +323,8 @@ int fnic_trace_debugfs_init(void)
 						  &fnic_trace_debugfs_fops);
 
 	if (!fnic_trace_debugfs_file) {
-		printk(KERN_DEBUG "Cannot create trace file under debugfs");
+		printk(KERN_DEBUG
+			"Cannot create trace file under debugfs\n");
 		return rc;
 	}
 	rc = 0;
@@ -295,8 +348,323 @@ void fnic_trace_debugfs_terminate(void)
 		debugfs_remove(fnic_trace_enable);
 		fnic_trace_enable = NULL;
 	}
-	if (fnic_trace_debugfs_root) {
-		debugfs_remove(fnic_trace_debugfs_root);
-		fnic_trace_debugfs_root = NULL;
+}
+
+/*
+ * fnic_reset_stats_open - Open the reset_stats file
+ * @inode: The inode pointer.
+ * @file: The file pointer to attach the stats reset flag.
+ *
+ * Description:
+ * This routine opens a debugsfs file reset_stats and stores i_private data
+ * to debug structure to retrieve later for while performing other
+ * file oprations.
+ *
+ * Returns:
+ * This function returns zero if successful.
+ */
+static int fnic_reset_stats_open(struct inode *inode, struct file *file)
+{
+	struct stats_debug_info *debug;
+
+	debug = kzalloc(sizeof(struct stats_debug_info), GFP_KERNEL);
+	if (!debug)
+		return -ENOMEM;
+
+	debug->i_private = inode->i_private;
+
+	file->private_data = debug;
+
+	return 0;
+}
+
+/*
+ * fnic_reset_stats_read - Read a reset_stats debugfs file
+ * @filp: The file pointer to read from.
+ * @ubuf: The buffer to copy the data to.
+ * @cnt: The number of bytes to read.
+ * @ppos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads value of variable reset_stats
+ * and stores into local @buf. It will start reading file at @ppos and
+ * copy up to @cnt of data to @ubuf from @buf.
+ *
+ * Returns:
+ * This function returns the amount of data that was read.
+ */
+static ssize_t fnic_reset_stats_read(struct file *file,
+					char __user *ubuf,
+					size_t cnt, loff_t *ppos)
+{
+	struct stats_debug_info *debug = file->private_data;
+	struct fnic *fnic = (struct fnic *)debug->i_private;
+	char buf[64];
+	int len;
+
+	len = sprintf(buf, "%u\n", fnic->reset_stats);
+
+	return simple_read_from_buffer(ubuf, cnt, ppos, buf, len);
+}
+
+/*
+ * fnic_reset_stats_write - Write to reset_stats debugfs file
+ * @filp: The file pointer to write from.
+ * @ubuf: The buffer to copy the data from.
+ * @cnt: The number of bytes to write.
+ * @ppos: The position in the file to start writing to.
+ *
+ * Description:
+ * This routine writes data from user buffer @ubuf to buffer @buf and
+ * resets cumulative stats of fnic.
+ *
+ * Returns:
+ * This function returns the amount of data that was written.
+ */
+static ssize_t fnic_reset_stats_write(struct file *file,
+					const char __user *ubuf,
+					size_t cnt, loff_t *ppos)
+{
+	struct stats_debug_info *debug = file->private_data;
+	struct fnic *fnic = (struct fnic *)debug->i_private;
+	struct fnic_stats *stats = &fnic->fnic_stats;
+	u64 *io_stats_p = (u64 *)&stats->io_stats;
+	u64 *fw_stats_p = (u64 *)&stats->fw_stats;
+	char buf[64];
+	unsigned long val;
+	int ret;
+
+	if (cnt >= sizeof(buf))
+		return -EINVAL;
+
+	if (copy_from_user(&buf, ubuf, cnt))
+		return -EFAULT;
+
+	buf[cnt] = 0;
+
+	ret = kstrtoul(buf, 10, &val);
+	if (ret < 0)
+		return ret;
+
+	fnic->reset_stats = val;
+
+	if (fnic->reset_stats) {
+		/* Skip variable is used to avoid descrepancies to Num IOs
+		 * and IO Completions stats. Skip incrementing No IO Compls
+		 * for pending active IOs after reset stats
+		 */
+		atomic64_set(&fnic->io_cmpl_skip,
+			atomic64_read(&stats->io_stats.active_ios));
+		memset(&stats->abts_stats, 0, sizeof(struct abort_stats));
+		memset(&stats->term_stats, 0,
+			sizeof(struct terminate_stats));
+		memset(&stats->reset_stats, 0, sizeof(struct reset_stats));
+		memset(&stats->misc_stats, 0, sizeof(struct misc_stats));
+		memset(&stats->vlan_stats, 0, sizeof(struct vlan_stats));
+		memset(io_stats_p+1, 0,
+			sizeof(struct io_path_stats) - sizeof(u64));
+		memset(fw_stats_p+1, 0,
+			sizeof(struct fw_stats) - sizeof(u64));
 	}
+
+	(*ppos)++;
+	return cnt;
+}
+
+/*
+ * fnic_reset_stats_release - Release the buffer used to store
+ * debugfs file data
+ * @inode: The inode pointer
+ * @file: The file pointer that contains the buffer to release
+ *
+ * Description:
+ * This routine frees the buffer that was allocated when the debugfs
+ * file was opened.
+ *
+ * Returns:
+ * This function returns zero.
+ */
+static int fnic_reset_stats_release(struct inode *inode,
+					struct file *file)
+{
+	struct stats_debug_info *debug = file->private_data;
+	kfree(debug);
+	return 0;
+}
+
+/*
+ * fnic_stats_debugfs_open - Open the stats file for specific host
+ * and get fnic stats.
+ * @inode: The inode pointer.
+ * @file: The file pointer to attach the specific host statistics.
+ *
+ * Description:
+ * This routine opens a debugsfs file stats of specific host and print
+ * fnic stats.
+ *
+ * Returns:
+ * This function returns zero if successful.
+ */
+static int fnic_stats_debugfs_open(struct inode *inode,
+					struct file *file)
+{
+	struct fnic *fnic = inode->i_private;
+	struct fnic_stats *fnic_stats = &fnic->fnic_stats;
+	struct stats_debug_info *debug;
+	int buf_size = 2 * PAGE_SIZE;
+
+	debug = kzalloc(sizeof(struct stats_debug_info), GFP_KERNEL);
+	if (!debug)
+		return -ENOMEM;
+
+	debug->debug_buffer = vmalloc(buf_size);
+	if (!debug->debug_buffer) {
+		kfree(debug);
+		return -ENOMEM;
+	}
+
+	debug->buf_size = buf_size;
+	memset((void *)debug->debug_buffer, 0, buf_size);
+	debug->buffer_len = fnic_get_stats_data(debug, fnic_stats);
+
+	file->private_data = debug;
+
+	return 0;
+}
+
+/*
+ * fnic_stats_debugfs_read - Read a debugfs file
+ * @file: The file pointer to read from.
+ * @ubuf: The buffer to copy the data to.
+ * @nbytes: The number of bytes to read.
+ * @pos: The position in the file to start reading from.
+ *
+ * Description:
+ * This routine reads data from the buffer indicated in the private_data
+ * field of @file. It will start reading at @pos and copy up to @nbytes of
+ * data to @ubuf.
+ *
+ * Returns:
+ * This function returns the amount of data that was read (this could be
+ * less than @nbytes if the end of the file was reached).
+ */
+static ssize_t fnic_stats_debugfs_read(struct file *file,
+					char __user *ubuf,
+					size_t nbytes,
+					loff_t *pos)
+{
+	struct stats_debug_info *debug = file->private_data;
+	int rc = 0;
+	rc = simple_read_from_buffer(ubuf, nbytes, pos,
+					debug->debug_buffer,
+					debug->buffer_len);
+	return rc;
+}
+
+/*
+ * fnic_stats_stats_release - Release the buffer used to store
+ * debugfs file data
+ * @inode: The inode pointer
+ * @file: The file pointer that contains the buffer to release
+ *
+ * Description:
+ * This routine frees the buffer that was allocated when the debugfs
+ * file was opened.
+ *
+ * Returns:
+ * This function returns zero.
+ */
+static int fnic_stats_debugfs_release(struct inode *inode,
+					struct file *file)
+{
+	struct stats_debug_info *debug = file->private_data;
+	vfree(debug->debug_buffer);
+	kfree(debug);
+	return 0;
+}
+
+static const struct file_operations fnic_stats_debugfs_fops = {
+	.owner = THIS_MODULE,
+	.open = fnic_stats_debugfs_open,
+	.read = fnic_stats_debugfs_read,
+	.release = fnic_stats_debugfs_release,
+};
+
+static const struct file_operations fnic_reset_debugfs_fops = {
+	.owner = THIS_MODULE,
+	.open = fnic_reset_stats_open,
+	.read = fnic_reset_stats_read,
+	.write = fnic_reset_stats_write,
+	.release = fnic_reset_stats_release,
+};
+
+/*
+ * fnic_stats_init - Initialize stats struct and create stats file per fnic
+ *
+ * Description:
+ * When Debugfs is configured this routine sets up the stats file per fnic
+ * It will create file stats and reset_stats under statistics/host# directory
+ * to log per fnic stats.
+ */
+int fnic_stats_debugfs_init(struct fnic *fnic)
+{
+	int rc = -1;
+	char name[16];
+
+	snprintf(name, sizeof(name), "host%d", fnic->lport->host->host_no);
+
+	if (!fnic_stats_debugfs_root) {
+		printk(KERN_DEBUG "fnic_stats root doesn't exist\n");
+		return rc;
+	}
+	fnic->fnic_stats_debugfs_host = debugfs_create_dir(name,
+						fnic_stats_debugfs_root);
+	if (!fnic->fnic_stats_debugfs_host) {
+		printk(KERN_DEBUG "Cannot create host directory\n");
+		return rc;
+	}
+
+	fnic->fnic_stats_debugfs_file = debugfs_create_file("stats",
+						S_IFREG|S_IRUGO|S_IWUSR,
+						fnic->fnic_stats_debugfs_host,
+						fnic,
+						&fnic_stats_debugfs_fops);
+	if (!fnic->fnic_stats_debugfs_file) {
+		printk(KERN_DEBUG "Cannot create host stats file\n");
+		return rc;
+	}
+
+	fnic->fnic_reset_debugfs_file = debugfs_create_file("reset_stats",
+						S_IFREG|S_IRUGO|S_IWUSR,
+						fnic->fnic_stats_debugfs_host,
+						fnic,
+						&fnic_reset_debugfs_fops);
+	if (!fnic->fnic_reset_debugfs_file) {
+		printk(KERN_DEBUG "Cannot create host stats file\n");
+		return rc;
+	}
+	rc = 0;
+	return rc;
+}
+
+/*
+ * fnic_stats_debugfs_remove - Tear down debugfs infrastructure of stats
+ *
+ * Description:
+ * When Debugfs is configured this routine removes debugfs file system
+ * elements that are specific to fnic stats.
+ */
+void fnic_stats_debugfs_remove(struct fnic *fnic)
+{
+	if (!fnic)
+		return;
+
+	debugfs_remove(fnic->fnic_stats_debugfs_file);
+	fnic->fnic_stats_debugfs_file = NULL;
+
+	debugfs_remove(fnic->fnic_reset_debugfs_file);
+	fnic->fnic_reset_debugfs_file = NULL;
+
+	debugfs_remove(fnic->fnic_stats_debugfs_host);
+	fnic->fnic_stats_debugfs_host = NULL;
 }
diff --git a/drivers/scsi/fnic/fnic_fcs.c b/drivers/scsi/fnic/fnic_fcs.c
index 006fa92a02df..60a1c50aa68f 100644
--- a/drivers/scsi/fnic/fnic_fcs.c
+++ b/drivers/scsi/fnic/fnic_fcs.c
@@ -302,6 +302,7 @@ static inline int is_fnic_fip_flogi_reject(struct fcoe_ctlr *fip,
 static void fnic_fcoe_send_vlan_req(struct fnic *fnic)
 {
 	struct fcoe_ctlr *fip = &fnic->ctlr;
+	struct fnic_stats *fnic_stats = &fnic->fnic_stats;
 	struct sk_buff *skb;
 	char *eth_fr;
 	int fr_len;
@@ -337,6 +338,7 @@ static void fnic_fcoe_send_vlan_req(struct fnic *fnic)
 	vlan->desc.wwnn.fd_desc.fip_dtype = FIP_DT_NAME;
 	vlan->desc.wwnn.fd_desc.fip_dlen = sizeof(vlan->desc.wwnn) / FIP_BPW;
 	put_unaligned_be64(fip->lp->wwnn, &vlan->desc.wwnn.fd_wwn);
+	atomic64_inc(&fnic_stats->vlan_stats.vlan_disc_reqs);
 
 	skb_put(skb, sizeof(*vlan));
 	skb->protocol = htons(ETH_P_FIP);
@@ -354,6 +356,7 @@ static void fnic_fcoe_process_vlan_resp(struct fnic *fnic, struct sk_buff *skb)
 	struct fcoe_ctlr *fip = &fnic->ctlr;
 	struct fip_header *fiph;
 	struct fip_desc *desc;
+	struct fnic_stats *fnic_stats = &fnic->fnic_stats;
 	u16 vid;
 	size_t rlen;
 	size_t dlen;
@@ -402,6 +405,7 @@ static void fnic_fcoe_process_vlan_resp(struct fnic *fnic, struct sk_buff *skb)
 	/* any VLAN descriptors present ? */
 	if (list_empty(&fnic->vlans)) {
 		/* retry from timer */
+		atomic64_inc(&fnic_stats->vlan_stats.resp_withno_vlanID);
 		FNIC_FCS_DBG(KERN_INFO, fnic->lport->host,
 			  "No VLAN descriptors in FIP VLAN response\n");
 		spin_unlock_irqrestore(&fnic->vlans_lock, flags);
@@ -533,6 +537,7 @@ drop:
 void fnic_handle_fip_frame(struct work_struct *work)
 {
 	struct fnic *fnic = container_of(work, struct fnic, fip_frame_work);
+	struct fnic_stats *fnic_stats = &fnic->fnic_stats;
 	unsigned long flags;
 	struct sk_buff *skb;
 	struct ethhdr *eh;
@@ -567,6 +572,8 @@ void fnic_handle_fip_frame(struct work_struct *work)
 			 * fcf's & restart from scratch
 			 */
 			if (is_fnic_fip_flogi_reject(&fnic->ctlr, skb)) {
+				atomic64_inc(
+					&fnic_stats->vlan_stats.flogi_rejects);
 				shost_printk(KERN_INFO, fnic->lport->host,
 					  "Trigger a Link down - VLAN Disc\n");
 				fcoe_ctlr_link_down(&fnic->ctlr);
@@ -753,6 +760,7 @@ static void fnic_rq_cmpl_frame_recv(struct vnic_rq *rq, struct cq_desc
 	struct fnic *fnic = vnic_dev_priv(rq->vdev);
 	struct sk_buff *skb;
 	struct fc_frame *fp;
+	struct fnic_stats *fnic_stats = &fnic->fnic_stats;
 	unsigned int eth_hdrs_stripped;
 	u8 type, color, eop, sop, ingress_port, vlan_stripped;
 	u8 fcoe = 0, fcoe_sof, fcoe_eof;
@@ -803,6 +811,7 @@ static void fnic_rq_cmpl_frame_recv(struct vnic_rq *rq, struct cq_desc
 		eth_hdrs_stripped = 0;
 		skb_trim(skb, bytes_written);
 		if (!fcs_ok) {
+			atomic64_inc(&fnic_stats->misc_stats.frame_errors);
 			FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host,
 				     "fcs error.  dropping packet.\n");
 			goto drop;
@@ -818,6 +827,7 @@ static void fnic_rq_cmpl_frame_recv(struct vnic_rq *rq, struct cq_desc
 	}
 
 	if (!fcs_ok || packet_error || !fcoe_fc_crc_ok || fcoe_enc_error) {
+		atomic64_inc(&fnic_stats->misc_stats.frame_errors);
 		FNIC_FCS_DBG(KERN_DEBUG, fnic->lport->host,
 			     "fnic rq_cmpl fcoe x%x fcsok x%x"
 			     " pkterr x%x fcoe_fc_crc_ok x%x, fcoe_enc_err"
@@ -1205,6 +1215,7 @@ void fnic_handle_fip_timer(struct fnic *fnic)
 {
 	unsigned long flags;
 	struct fcoe_vlan *vlan;
+	struct fnic_stats *fnic_stats = &fnic->fnic_stats;
 	u64 sol_time;
 
 	spin_lock_irqsave(&fnic->fnic_lock, flags);
@@ -1273,6 +1284,7 @@ void fnic_handle_fip_timer(struct fnic *fnic)
 			vlan->state = FIP_VLAN_SENT; /* sent now */
 		}
 		spin_unlock_irqrestore(&fnic->vlans_lock, flags);
+		atomic64_inc(&fnic_stats->vlan_stats.sol_expiry_count);
 		vlan->sol_count++;
 		sol_time = jiffies + msecs_to_jiffies
 					(FCOE_CTLR_START_DELAY);
diff --git a/drivers/scsi/fnic/fnic_isr.c b/drivers/scsi/fnic/fnic_isr.c
index 5c1f223cabce..7d9b54ae7f62 100644
--- a/drivers/scsi/fnic/fnic_isr.c
+++ b/drivers/scsi/fnic/fnic_isr.c
@@ -37,6 +37,9 @@ static irqreturn_t fnic_isr_legacy(int irq, void *data)
 	if (!pba)
 		return IRQ_NONE;
 
+	fnic->fnic_stats.misc_stats.last_isr_time = jiffies;
+	atomic64_inc(&fnic->fnic_stats.misc_stats.isr_count);
+
 	if (pba & (1 << FNIC_INTX_NOTIFY)) {
 		vnic_intr_return_all_credits(&fnic->intr[FNIC_INTX_NOTIFY]);
 		fnic_handle_link_event(fnic);
@@ -66,6 +69,9 @@ static irqreturn_t fnic_isr_msi(int irq, void *data)
 	struct fnic *fnic = data;
 	unsigned long work_done = 0;
 
+	fnic->fnic_stats.misc_stats.last_isr_time = jiffies;
+	atomic64_inc(&fnic->fnic_stats.misc_stats.isr_count);
+
 	work_done += fnic_wq_copy_cmpl_handler(fnic, -1);
 	work_done += fnic_wq_cmpl_handler(fnic, -1);
 	work_done += fnic_rq_cmpl_handler(fnic, -1);
@@ -83,6 +89,9 @@ static irqreturn_t fnic_isr_msix_rq(int irq, void *data)
 	struct fnic *fnic = data;
 	unsigned long rq_work_done = 0;
 
+	fnic->fnic_stats.misc_stats.last_isr_time = jiffies;
+	atomic64_inc(&fnic->fnic_stats.misc_stats.isr_count);
+
 	rq_work_done = fnic_rq_cmpl_handler(fnic, -1);
 	vnic_intr_return_credits(&fnic->intr[FNIC_MSIX_RQ],
 				 rq_work_done,
@@ -97,6 +106,9 @@ static irqreturn_t fnic_isr_msix_wq(int irq, void *data)
 	struct fnic *fnic = data;
 	unsigned long wq_work_done = 0;
 
+	fnic->fnic_stats.misc_stats.last_isr_time = jiffies;
+	atomic64_inc(&fnic->fnic_stats.misc_stats.isr_count);
+
 	wq_work_done = fnic_wq_cmpl_handler(fnic, -1);
 	vnic_intr_return_credits(&fnic->intr[FNIC_MSIX_WQ],
 				 wq_work_done,
@@ -110,6 +122,9 @@ static irqreturn_t fnic_isr_msix_wq_copy(int irq, void *data)
 	struct fnic *fnic = data;
 	unsigned long wq_copy_work_done = 0;
 
+	fnic->fnic_stats.misc_stats.last_isr_time = jiffies;
+	atomic64_inc(&fnic->fnic_stats.misc_stats.isr_count);
+
 	wq_copy_work_done = fnic_wq_copy_cmpl_handler(fnic, -1);
 	vnic_intr_return_credits(&fnic->intr[FNIC_MSIX_WQ_COPY],
 				 wq_copy_work_done,
@@ -122,6 +137,9 @@ static irqreturn_t fnic_isr_msix_err_notify(int irq, void *data)
 {
 	struct fnic *fnic = data;
 
+	fnic->fnic_stats.misc_stats.last_isr_time = jiffies;
+	atomic64_inc(&fnic->fnic_stats.misc_stats.isr_count);
+
 	vnic_intr_return_all_credits(&fnic->intr[FNIC_MSIX_ERR_NOTIFY]);
 	fnic_log_q_error(fnic);
 	fnic_handle_link_event(fnic);
diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c
index bbf81ea3a252..be09b101b4a1 100644
--- a/drivers/scsi/fnic/fnic_main.c
+++ b/drivers/scsi/fnic/fnic_main.c
@@ -556,6 +556,13 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	host->transportt = fnic_fc_transport;
 
+	err = fnic_stats_debugfs_init(fnic);
+	if (err) {
+		shost_printk(KERN_ERR, fnic->lport->host,
+				"Failed to initialize debugfs for stats\n");
+		fnic_stats_debugfs_remove(fnic);
+	}
+
 	/* Setup PCI resources */
 	pci_set_drvdata(pdev, fnic);
 
@@ -917,6 +924,7 @@ err_out_release_regions:
 err_out_disable_device:
 	pci_disable_device(pdev);
 err_out_free_hba:
+	fnic_stats_debugfs_remove(fnic);
 	scsi_host_put(lp->host);
 err_out:
 	return err;
@@ -969,6 +977,7 @@ static void fnic_remove(struct pci_dev *pdev)
 
 	fcoe_ctlr_destroy(&fnic->ctlr);
 	fc_lport_destroy(lp);
+	fnic_stats_debugfs_remove(fnic);
 
 	/*
 	 * This stops the fnic device, masks all interrupts. Completed
@@ -1014,6 +1023,14 @@ static int __init fnic_init_module(void)
 
 	printk(KERN_INFO PFX "%s, ver %s\n", DRV_DESCRIPTION, DRV_VERSION);
 
+	/* Create debugfs entries for fnic */
+	err = fnic_debugfs_init();
+	if (err < 0) {
+		printk(KERN_ERR PFX "Failed to create fnic directory "
+				"for tracing and stats logging\n");
+		fnic_debugfs_terminate();
+	}
+
 	/* Allocate memory for trace buffer */
 	err = fnic_trace_buf_init();
 	if (err < 0) {
@@ -1102,6 +1119,7 @@ err_create_fnic_sgl_slab_max:
 	kmem_cache_destroy(fnic_sgl_cache[FNIC_SGL_CACHE_DFLT]);
 err_create_fnic_sgl_slab_dflt:
 	fnic_trace_free();
+	fnic_debugfs_terminate();
 	return err;
 }
 
@@ -1118,6 +1136,7 @@ static void __exit fnic_cleanup_module(void)
 	kmem_cache_destroy(fnic_io_req_cache);
 	fc_release_transport(fnic_fc_transport);
 	fnic_trace_free();
+	fnic_debugfs_terminate();
 }
 
 module_init(fnic_init_module);
diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c
index 50f3b327bd1e..0521436d05d6 100644
--- a/drivers/scsi/fnic/fnic_scsi.c
+++ b/drivers/scsi/fnic/fnic_scsi.c
@@ -226,15 +226,23 @@ int fnic_fw_reset_handler(struct fnic *fnic)
 
 	if (!vnic_wq_copy_desc_avail(wq))
 		ret = -EAGAIN;
-	else
+	else {
 		fnic_queue_wq_copy_desc_fw_reset(wq, SCSI_NO_TAG);
+		atomic64_inc(&fnic->fnic_stats.fw_stats.active_fw_reqs);
+		if (atomic64_read(&fnic->fnic_stats.fw_stats.active_fw_reqs) >
+			  atomic64_read(&fnic->fnic_stats.fw_stats.max_fw_reqs))
+			atomic64_set(&fnic->fnic_stats.fw_stats.max_fw_reqs,
+				atomic64_read(
+				  &fnic->fnic_stats.fw_stats.active_fw_reqs));
+	}
 
 	spin_unlock_irqrestore(&fnic->wq_copy_lock[0], flags);
 
-	if (!ret)
+	if (!ret) {
+		atomic64_inc(&fnic->fnic_stats.reset_stats.fw_resets);
 		FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host,
 			      "Issued fw reset\n");
-	else {
+	} else {
 		fnic_clear_state_flags(fnic, FNIC_FLAGS_FWRESET);
 		FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host,
 			      "Failed to issue fw reset\n");
@@ -291,6 +299,12 @@ int fnic_flogi_reg_handler(struct fnic *fnic, u32 fc_id)
 			      fc_id, fnic->ctlr.map_dest, gw_mac);
 	}
 
+	atomic64_inc(&fnic->fnic_stats.fw_stats.active_fw_reqs);
+	if (atomic64_read(&fnic->fnic_stats.fw_stats.active_fw_reqs) >
+		  atomic64_read(&fnic->fnic_stats.fw_stats.max_fw_reqs))
+		atomic64_set(&fnic->fnic_stats.fw_stats.max_fw_reqs,
+		  atomic64_read(&fnic->fnic_stats.fw_stats.active_fw_reqs));
+
 flogi_reg_ioreq_end:
 	spin_unlock_irqrestore(&fnic->wq_copy_lock[0], flags);
 	return ret;
@@ -310,6 +324,7 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic,
 	struct fc_rport *rport = starget_to_rport(scsi_target(sc->device));
 	struct fc_rport_libfc_priv *rp = rport->dd_data;
 	struct host_sg_desc *desc;
+	struct misc_stats *misc_stats = &fnic->fnic_stats.misc_stats;
 	u8 pri_tag = 0;
 	unsigned int i;
 	unsigned long intr_flags;
@@ -358,6 +373,7 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic,
 		spin_unlock_irqrestore(&fnic->wq_copy_lock[0], intr_flags);
 		FNIC_SCSI_DBG(KERN_INFO, fnic->lport->host,
 			  "fnic_queue_wq_copy_desc failure - no descriptors\n");
+		atomic64_inc(&misc_stats->io_cpwq_alloc_failures);
 		return SCSI_MLQUEUE_HOST_BUSY;
 	}
 
@@ -386,6 +402,12 @@ static inline int fnic_queue_wq_copy_desc(struct fnic *fnic,
 					 rport->maxframe_size, rp->r_a_tov,
 					 rp->e_d_tov);
 
+	atomic64_inc(&fnic->fnic_stats.fw_stats.active_fw_reqs);
+	if (atomic64_read(&fnic->fnic_stats.fw_stats.active_fw_reqs) >
+		  atomic64_read(&fnic->fnic_stats.fw_stats.max_fw_reqs))
+		atomic64_set(&fnic->fnic_stats.fw_stats.max_fw_reqs,
+		  atomic64_read(&fnic->fnic_stats.fw_stats.active_fw_reqs));
+
 	spin_unlock_irqrestore(&fnic->wq_copy_lock[0], intr_flags);
 	return 0;
 }
@@ -401,6 +423,7 @@ static int fnic_queuecommand_lck(struct scsi_cmnd *sc, void (*done)(struct scsi_
 	struct fc_rport *rport;
 	struct fnic_io_req *io_req = NULL;
 	struct fnic *fnic = lport_priv(lp);
+	struct fnic_stats *fnic_stats = &fnic->fnic_stats;
 	struct vnic_wq_copy *wq;
 	int ret;
 	u64 cmd_trace;
@@ -414,6 +437,7 @@ static int fnic_queuecommand_lck(struct scsi_cmnd *sc, void (*done)(struct scsi_
 	rport = starget_to_rport(scsi_target(sc->device));
 	ret = fc_remote_port_chkready(rport);
 	if (ret) {
+		atomic64_inc(&fnic_stats->misc_stats.rport_not_ready);
 		sc->result = ret;
 		done(sc);
 		return 0;
@@ -436,6 +460,7 @@ static int fnic_queuecommand_lck(struct scsi_cmnd *sc, void (*done)(struct scsi_
 	/* Get a new io_req for this SCSI IO */
 	io_req = mempool_alloc(fnic->io_req_pool, GFP_ATOMIC);
 	if (!io_req) {
+		atomic64_inc(&fnic_stats->io_stats.alloc_failures);
 		ret = SCSI_MLQUEUE_HOST_BUSY;
 		goto out;
 	}
@@ -462,6 +487,7 @@ static int fnic_queuecommand_lck(struct scsi_cmnd *sc, void (*done)(struct scsi_
 			mempool_alloc(fnic->io_sgl_pool[io_req->sgl_type],
 				      GFP_ATOMIC);
 		if (!io_req->sgl_list) {
+			atomic64_inc(&fnic_stats->io_stats.alloc_failures);
 			ret = SCSI_MLQUEUE_HOST_BUSY;
 			scsi_dma_unmap(sc);
 			mempool_free(io_req, fnic->io_req_pool);
@@ -509,6 +535,13 @@ static int fnic_queuecommand_lck(struct scsi_cmnd *sc, void (*done)(struct scsi_
 			mempool_free(io_req, fnic->io_req_pool);
 		}
 	} else {
+		atomic64_inc(&fnic_stats->io_stats.active_ios);
+		atomic64_inc(&fnic_stats->io_stats.num_ios);
+		if (atomic64_read(&fnic_stats->io_stats.active_ios) >
+			  atomic64_read(&fnic_stats->io_stats.max_active_ios))
+			atomic64_set(&fnic_stats->io_stats.max_active_ios,
+			     atomic64_read(&fnic_stats->io_stats.active_ios));
+
 		/* REVISIT: Use per IO lock in the final code */
 		CMD_FLAGS(sc) |= FNIC_IO_ISSUED;
 	}
@@ -542,12 +575,18 @@ static int fnic_fcpio_fw_reset_cmpl_handler(struct fnic *fnic,
 	struct fcpio_tag tag;
 	int ret = 0;
 	unsigned long flags;
+	struct reset_stats *reset_stats = &fnic->fnic_stats.reset_stats;
 
 	fcpio_header_dec(&desc->hdr, &type, &hdr_status, &tag);
 
+	atomic64_inc(&reset_stats->fw_reset_completions);
+
 	/* Clean up all outstanding io requests */
 	fnic_cleanup_io(fnic, SCSI_NO_TAG);
 
+	atomic64_set(&fnic->fnic_stats.fw_stats.active_fw_reqs, 0);
+	atomic64_set(&fnic->fnic_stats.io_stats.active_ios, 0);
+
 	spin_lock_irqsave(&fnic->fnic_lock, flags);
 
 	/* fnic should be in FC_TRANS_ETH_MODE */
@@ -571,6 +610,7 @@ static int fnic_fcpio_fw_reset_cmpl_handler(struct fnic *fnic,
 			 * reset the firmware. Free the cached flogi
 			 */
 			fnic->state = FNIC_IN_FC_MODE;
+			atomic64_inc(&reset_stats->fw_reset_failures);
 			ret = -1;
 		}
 	} else {
@@ -578,6 +618,7 @@ static int fnic_fcpio_fw_reset_cmpl_handler(struct fnic *fnic,
 			      fnic->lport->host,
 			      "Unexpected state %s while processing"
 			      " reset cmpl\n", fnic_state_to_str(fnic->state));
+		atomic64_inc(&reset_stats->fw_reset_failures);
 		ret = -1;
 	}
 
@@ -701,10 +742,14 @@ static inline void fnic_fcpio_ack_handler(struct fnic *fnic,
 	wq = &fnic->wq_copy[cq_index - fnic->raw_wq_count - fnic->rq_count];
 	spin_lock_irqsave(&fnic->wq_copy_lock[0], flags);
 
+	fnic->fnic_stats.misc_stats.last_ack_time = jiffies;
 	if (is_ack_index_in_range(wq, request_out)) {
 		fnic->fw_ack_index[0] = request_out;
 		fnic->fw_ack_recd[0] = 1;
-	}
+	} else
+		atomic64_inc(
+			&fnic->fnic_stats.misc_stats.ack_index_out_of_range);
+
 	spin_unlock_irqrestore(&fnic->wq_copy_lock[0], flags);
 	FNIC_TRACE(fnic_fcpio_ack_handler,
 		  fnic->lport->host->host_no, 0, 0, ox_id_tag[2], ox_id_tag[3],
@@ -726,6 +771,7 @@ static void fnic_fcpio_icmnd_cmpl_handler(struct fnic *fnic,
 	struct fcpio_icmnd_cmpl *icmnd_cmpl;
 	struct fnic_io_req *io_req;
 	struct scsi_cmnd *sc;
+	struct fnic_stats *fnic_stats = &fnic->fnic_stats;
 	unsigned long flags;
 	spinlock_t *io_lock;
 	u64 cmd_trace;
@@ -746,6 +792,7 @@ static void fnic_fcpio_icmnd_cmpl_handler(struct fnic *fnic,
 	sc = scsi_host_find_tag(fnic->lport->host, id);
 	WARN_ON_ONCE(!sc);
 	if (!sc) {
+		atomic64_inc(&fnic_stats->io_stats.sc_null);
 		shost_printk(KERN_ERR, fnic->lport->host,
 			  "icmnd_cmpl sc is null - "
 			  "hdr status = %s tag = 0x%x desc = 0x%p\n",
@@ -766,6 +813,7 @@ static void fnic_fcpio_icmnd_cmpl_handler(struct fnic *fnic,
 	io_req = (struct fnic_io_req *)CMD_SP(sc);
 	WARN_ON_ONCE(!io_req);
 	if (!io_req) {
+		atomic64_inc(&fnic_stats->io_stats.ioreq_null);
 		CMD_FLAGS(sc) |= FNIC_IO_REQ_NULL;
 		spin_unlock_irqrestore(io_lock, flags);
 		shost_printk(KERN_ERR, fnic->lport->host,
@@ -824,31 +872,54 @@ static void fnic_fcpio_icmnd_cmpl_handler(struct fnic *fnic,
 		if (icmnd_cmpl->flags & FCPIO_ICMND_CMPL_RESID_UNDER)
 			xfer_len -= icmnd_cmpl->residual;
 
+		if (icmnd_cmpl->scsi_status == SAM_STAT_TASK_SET_FULL)
+			atomic64_inc(&fnic_stats->misc_stats.queue_fulls);
 		break;
 
 	case FCPIO_TIMEOUT:          /* request was timed out */
+		atomic64_inc(&fnic_stats->misc_stats.fcpio_timeout);
 		sc->result = (DID_TIME_OUT << 16) | icmnd_cmpl->scsi_status;
 		break;
 
 	case FCPIO_ABORTED:          /* request was aborted */
+		atomic64_inc(&fnic_stats->misc_stats.fcpio_aborted);
 		sc->result = (DID_ERROR << 16) | icmnd_cmpl->scsi_status;
 		break;
 
 	case FCPIO_DATA_CNT_MISMATCH: /* recv/sent more/less data than exp. */
+		atomic64_inc(&fnic_stats->misc_stats.data_count_mismatch);
 		scsi_set_resid(sc, icmnd_cmpl->residual);
 		sc->result = (DID_ERROR << 16) | icmnd_cmpl->scsi_status;
 		break;
 
 	case FCPIO_OUT_OF_RESOURCE:  /* out of resources to complete request */
+		atomic64_inc(&fnic_stats->fw_stats.fw_out_of_resources);
 		sc->result = (DID_REQUEUE << 16) | icmnd_cmpl->scsi_status;
 		break;
-	case FCPIO_INVALID_HEADER:   /* header contains invalid data */
-	case FCPIO_INVALID_PARAM:    /* some parameter in request invalid */
-	case FCPIO_REQ_NOT_SUPPORTED:/* request type is not supported */
+
 	case FCPIO_IO_NOT_FOUND:     /* requested I/O was not found */
+		atomic64_inc(&fnic_stats->io_stats.io_not_found);
+		sc->result = (DID_ERROR << 16) | icmnd_cmpl->scsi_status;
+		break;
+
 	case FCPIO_SGL_INVALID:      /* request was aborted due to sgl error */
-	case FCPIO_MSS_INVALID:      /* request was aborted due to mss error */
+		atomic64_inc(&fnic_stats->misc_stats.sgl_invalid);
+		sc->result = (DID_ERROR << 16) | icmnd_cmpl->scsi_status;
+		break;
+
 	case FCPIO_FW_ERR:           /* request was terminated due fw error */
+		atomic64_inc(&fnic_stats->fw_stats.io_fw_errs);
+		sc->result = (DID_ERROR << 16) | icmnd_cmpl->scsi_status;
+		break;
+
+	case FCPIO_MSS_INVALID:      /* request was aborted due to mss error */
+		atomic64_inc(&fnic_stats->misc_stats.mss_invalid);
+		sc->result = (DID_ERROR << 16) | icmnd_cmpl->scsi_status;
+		break;
+
+	case FCPIO_INVALID_HEADER:   /* header contains invalid data */
+	case FCPIO_INVALID_PARAM:    /* some parameter in request invalid */
+	case FCPIO_REQ_NOT_SUPPORTED:/* request type is not supported */
 	default:
 		shost_printk(KERN_ERR, fnic->lport->host, "hdr status = %s\n",
 			     fnic_fcpio_status_to_str(hdr_status));
@@ -856,6 +927,11 @@ static void fnic_fcpio_icmnd_cmpl_handler(struct fnic *fnic,
 		break;
 	}
 
+	if (hdr_status != FCPIO_SUCCESS) {
+		atomic64_inc(&fnic_stats->io_stats.io_failures);
+		shost_printk(KERN_ERR, fnic->lport->host, "hdr status = %s\n",
+			     fnic_fcpio_status_to_str(hdr_status));
+	}
 	/* Break link with the SCSI command */
 	CMD_SP(sc) = NULL;
 	CMD_FLAGS(sc) |= FNIC_IO_DONE;
@@ -889,6 +965,12 @@ static void fnic_fcpio_icmnd_cmpl_handler(struct fnic *fnic,
 	} else
 		fnic->lport->host_stats.fcp_control_requests++;
 
+	atomic64_dec(&fnic_stats->io_stats.active_ios);
+	if (atomic64_read(&fnic->io_cmpl_skip))
+		atomic64_dec(&fnic->io_cmpl_skip);
+	else
+		atomic64_inc(&fnic_stats->io_stats.io_completions);
+
 	/* Call SCSI completion function to complete the IO */
 	if (sc->scsi_done)
 		sc->scsi_done(sc);
@@ -906,6 +988,10 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic,
 	u32 id;
 	struct scsi_cmnd *sc;
 	struct fnic_io_req *io_req;
+	struct fnic_stats *fnic_stats = &fnic->fnic_stats;
+	struct abort_stats *abts_stats = &fnic->fnic_stats.abts_stats;
+	struct terminate_stats *term_stats = &fnic->fnic_stats.term_stats;
+	struct misc_stats *misc_stats = &fnic->fnic_stats.misc_stats;
 	unsigned long flags;
 	spinlock_t *io_lock;
 	unsigned long start_time;
@@ -923,6 +1009,7 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic,
 	sc = scsi_host_find_tag(fnic->lport->host, id & FNIC_TAG_MASK);
 	WARN_ON_ONCE(!sc);
 	if (!sc) {
+		atomic64_inc(&fnic_stats->io_stats.sc_null);
 		shost_printk(KERN_ERR, fnic->lport->host,
 			  "itmf_cmpl sc is null - hdr status = %s tag = 0x%x\n",
 			  fnic_fcpio_status_to_str(hdr_status), id);
@@ -933,6 +1020,7 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic,
 	io_req = (struct fnic_io_req *)CMD_SP(sc);
 	WARN_ON_ONCE(!io_req);
 	if (!io_req) {
+		atomic64_inc(&fnic_stats->io_stats.ioreq_null);
 		spin_unlock_irqrestore(io_lock, flags);
 		CMD_FLAGS(sc) |= FNIC_IO_ABT_TERM_REQ_NULL;
 		shost_printk(KERN_ERR, fnic->lport->host,
@@ -957,6 +1045,31 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic,
 		spin_unlock_irqrestore(io_lock, flags);
 	} else if (id & FNIC_TAG_ABORT) {
 		/* Completion of abort cmd */
+		switch (hdr_status) {
+		case FCPIO_SUCCESS:
+			break;
+		case FCPIO_TIMEOUT:
+			if (CMD_FLAGS(sc) & FNIC_IO_ABTS_ISSUED)
+				atomic64_inc(&abts_stats->abort_fw_timeouts);
+			else
+				atomic64_inc(
+					&term_stats->terminate_fw_timeouts);
+			break;
+		case FCPIO_IO_NOT_FOUND:
+			if (CMD_FLAGS(sc) & FNIC_IO_ABTS_ISSUED)
+				atomic64_inc(&abts_stats->abort_io_not_found);
+			else
+				atomic64_inc(
+					&term_stats->terminate_io_not_found);
+			break;
+		default:
+			if (CMD_FLAGS(sc) & FNIC_IO_ABTS_ISSUED)
+				atomic64_inc(&abts_stats->abort_failures);
+			else
+				atomic64_inc(
+					&term_stats->terminate_failures);
+			break;
+		}
 		if (CMD_STATE(sc) != FNIC_IOREQ_ABTS_PENDING) {
 			/* This is a late completion. Ignore it */
 			spin_unlock_irqrestore(io_lock, flags);
@@ -964,6 +1077,16 @@ static void fnic_fcpio_itmf_cmpl_handler(struct fnic *fnic,
 		}
 		CMD_ABTS_STATUS(sc) = hdr_status;
 		CMD_FLAGS(sc) |= FNIC_IO_ABT_TERM_DONE;
+
+		atomic64_dec(&fnic_stats->io_stats.active_ios);
+		if (atomic64_read(&fnic->io_cmpl_skip))
+			atomic64_dec(&fnic->io_cmpl_skip);
+		else
+			atomic64_inc(&fnic_stats->io_stats.io_completions);
+
+		if (!(CMD_FLAGS(sc) & (FNIC_IO_ABORTED | FNIC_IO_DONE)))
+			atomic64_inc(&misc_stats->no_icmnd_itmf_cmpls);
+
 		FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host,
 			      "abts cmpl recd. id %d status %s\n",
 			      (int)(id & FNIC_TAG_MASK),
@@ -1066,6 +1189,18 @@ static int fnic_fcpio_cmpl_handler(struct vnic_dev *vdev,
 {
 	struct fnic *fnic = vnic_dev_priv(vdev);
 
+	switch (desc->hdr.type) {
+	case FCPIO_ICMND_CMPL: /* fw completed a command */
+	case FCPIO_ITMF_CMPL: /* fw completed itmf (abort cmd, lun reset)*/
+	case FCPIO_FLOGI_REG_CMPL: /* fw completed flogi_reg */
+	case FCPIO_FLOGI_FIP_REG_CMPL: /* fw completed flogi_fip_reg */
+	case FCPIO_RESET_CMPL: /* fw completed reset */
+		atomic64_dec(&fnic->fnic_stats.fw_stats.active_fw_reqs);
+		break;
+	default:
+		break;
+	}
+
 	switch (desc->hdr.type) {
 	case FCPIO_ACK: /* fw copied copy wq desc to its queue */
 		fnic_fcpio_ack_handler(fnic, cq_index, desc);
@@ -1126,6 +1261,7 @@ static void fnic_cleanup_io(struct fnic *fnic, int exclude_id)
 	struct scsi_cmnd *sc;
 	spinlock_t *io_lock;
 	unsigned long start_time = 0;
+	struct fnic_stats *fnic_stats = &fnic->fnic_stats;
 
 	for (i = 0; i < fnic->fnic_max_tag_id; i++) {
 		if (i == exclude_id)
@@ -1179,6 +1315,11 @@ cleanup_scsi_cmd:
 		FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, "fnic_cleanup_io:"
 			      " DID_TRANSPORT_DISRUPTED\n");
 
+		if (atomic64_read(&fnic->io_cmpl_skip))
+			atomic64_dec(&fnic->io_cmpl_skip);
+		else
+			atomic64_inc(&fnic_stats->io_stats.io_completions);
+
 		/* Complete the command to SCSI */
 		if (sc->scsi_done) {
 			FNIC_TRACE(fnic_cleanup_io,
@@ -1262,6 +1403,7 @@ static inline int fnic_queue_abort_io_req(struct fnic *fnic, int tag,
 {
 	struct vnic_wq_copy *wq = &fnic->wq_copy[0];
 	struct Scsi_Host *host = fnic->lport->host;
+	struct misc_stats *misc_stats = &fnic->fnic_stats.misc_stats;
 	unsigned long flags;
 
 	spin_lock_irqsave(host->host_lock, flags);
@@ -1283,12 +1425,19 @@ static inline int fnic_queue_abort_io_req(struct fnic *fnic, int tag,
 		atomic_dec(&fnic->in_flight);
 		FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host,
 			"fnic_queue_abort_io_req: failure: no descriptors\n");
+		atomic64_inc(&misc_stats->abts_cpwq_alloc_failures);
 		return 1;
 	}
 	fnic_queue_wq_copy_desc_itmf(wq, tag | FNIC_TAG_ABORT,
 				     0, task_req, tag, fc_lun, io_req->port_id,
 				     fnic->config.ra_tov, fnic->config.ed_tov);
 
+	atomic64_inc(&fnic->fnic_stats.fw_stats.active_fw_reqs);
+	if (atomic64_read(&fnic->fnic_stats.fw_stats.active_fw_reqs) >
+		  atomic64_read(&fnic->fnic_stats.fw_stats.max_fw_reqs))
+		atomic64_set(&fnic->fnic_stats.fw_stats.max_fw_reqs,
+		  atomic64_read(&fnic->fnic_stats.fw_stats.active_fw_reqs));
+
 	spin_unlock_irqrestore(&fnic->wq_copy_lock[0], flags);
 	atomic_dec(&fnic->in_flight);
 
@@ -1299,10 +1448,13 @@ static void fnic_rport_exch_reset(struct fnic *fnic, u32 port_id)
 {
 	int tag;
 	int abt_tag;
+	int term_cnt = 0;
 	struct fnic_io_req *io_req;
 	spinlock_t *io_lock;
 	unsigned long flags;
 	struct scsi_cmnd *sc;
+	struct reset_stats *reset_stats = &fnic->fnic_stats.reset_stats;
+	struct terminate_stats *term_stats = &fnic->fnic_stats.term_stats;
 	struct scsi_lun fc_lun;
 	enum fnic_ioreq_state old_ioreq_state;
 
@@ -1366,6 +1518,7 @@ static void fnic_rport_exch_reset(struct fnic *fnic, u32 port_id)
 		CMD_STATE(sc) = FNIC_IOREQ_ABTS_PENDING;
 		CMD_ABTS_STATUS(sc) = FCPIO_INVALID_CODE;
 		if (CMD_FLAGS(sc) & FNIC_DEVICE_RESET) {
+			atomic64_inc(&reset_stats->device_reset_terminates);
 			abt_tag = (tag | FNIC_TAG_DEV_RST);
 			FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host,
 			"fnic_rport_exch_reset dev rst sc 0x%p\n",
@@ -1402,8 +1555,12 @@ static void fnic_rport_exch_reset(struct fnic *fnic, u32 port_id)
 			else
 				CMD_FLAGS(sc) |= FNIC_IO_INTERNAL_TERM_ISSUED;
 			spin_unlock_irqrestore(io_lock, flags);
+			atomic64_inc(&term_stats->terminates);
+			term_cnt++;
 		}
 	}
+	if (term_cnt > atomic64_read(&term_stats->max_terminates))
+		atomic64_set(&term_stats->max_terminates, term_cnt);
 
 }
 
@@ -1411,6 +1568,7 @@ void fnic_terminate_rport_io(struct fc_rport *rport)
 {
 	int tag;
 	int abt_tag;
+	int term_cnt = 0;
 	struct fnic_io_req *io_req;
 	spinlock_t *io_lock;
 	unsigned long flags;
@@ -1420,6 +1578,8 @@ void fnic_terminate_rport_io(struct fc_rport *rport)
 	struct fc_lport *lport;
 	struct fnic *fnic;
 	struct fc_rport *cmd_rport;
+	struct reset_stats *reset_stats;
+	struct terminate_stats *term_stats;
 	enum fnic_ioreq_state old_ioreq_state;
 
 	if (!rport) {
@@ -1448,6 +1608,9 @@ void fnic_terminate_rport_io(struct fc_rport *rport)
 	if (fnic->in_remove)
 		return;
 
+	reset_stats = &fnic->fnic_stats.reset_stats;
+	term_stats = &fnic->fnic_stats.term_stats;
+
 	for (tag = 0; tag < fnic->fnic_max_tag_id; tag++) {
 		abt_tag = tag;
 		io_lock = fnic_io_lock_tag(fnic, tag);
@@ -1504,6 +1667,7 @@ void fnic_terminate_rport_io(struct fc_rport *rport)
 		CMD_STATE(sc) = FNIC_IOREQ_ABTS_PENDING;
 		CMD_ABTS_STATUS(sc) = FCPIO_INVALID_CODE;
 		if (CMD_FLAGS(sc) & FNIC_DEVICE_RESET) {
+			atomic64_inc(&reset_stats->device_reset_terminates);
 			abt_tag = (tag | FNIC_TAG_DEV_RST);
 			FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host,
 			"fnic_terminate_rport_io dev rst sc 0x%p\n", sc);
@@ -1540,8 +1704,12 @@ void fnic_terminate_rport_io(struct fc_rport *rport)
 			else
 				CMD_FLAGS(sc) |= FNIC_IO_INTERNAL_TERM_ISSUED;
 			spin_unlock_irqrestore(io_lock, flags);
+			atomic64_inc(&term_stats->terminates);
+			term_cnt++;
 		}
 	}
+	if (term_cnt > atomic64_read(&term_stats->max_terminates))
+		atomic64_set(&term_stats->max_terminates, term_cnt);
 
 }
 
@@ -1562,6 +1730,9 @@ int fnic_abort_cmd(struct scsi_cmnd *sc)
 	int ret = SUCCESS;
 	u32 task_req = 0;
 	struct scsi_lun fc_lun;
+	struct fnic_stats *fnic_stats;
+	struct abort_stats *abts_stats;
+	struct terminate_stats *term_stats;
 	int tag;
 	DECLARE_COMPLETION_ONSTACK(tm_done);
 
@@ -1572,6 +1743,10 @@ int fnic_abort_cmd(struct scsi_cmnd *sc)
 	lp = shost_priv(sc->device->host);
 
 	fnic = lport_priv(lp);
+	fnic_stats = &fnic->fnic_stats;
+	abts_stats = &fnic->fnic_stats.abts_stats;
+	term_stats = &fnic->fnic_stats.term_stats;
+
 	rport = starget_to_rport(scsi_target(sc->device));
 	tag = sc->request->tag;
 	FNIC_SCSI_DBG(KERN_DEBUG,
@@ -1630,8 +1805,10 @@ int fnic_abort_cmd(struct scsi_cmnd *sc)
 	 */
 	if (fc_remote_port_chkready(rport) == 0)
 		task_req = FCPIO_ITMF_ABT_TASK;
-	else
+	else {
+		atomic64_inc(&fnic_stats->misc_stats.rport_not_ready);
 		task_req = FCPIO_ITMF_ABT_TASK_TERM;
+	}
 
 	/* Now queue the abort command to firmware */
 	int_to_scsilun(sc->device->lun, &fc_lun);
@@ -1646,10 +1823,13 @@ int fnic_abort_cmd(struct scsi_cmnd *sc)
 		ret = FAILED;
 		goto fnic_abort_cmd_end;
 	}
-	if (task_req == FCPIO_ITMF_ABT_TASK)
+	if (task_req == FCPIO_ITMF_ABT_TASK) {
 		CMD_FLAGS(sc) |= FNIC_IO_ABTS_ISSUED;
-	else
+		atomic64_inc(&fnic_stats->abts_stats.aborts);
+	} else {
 		CMD_FLAGS(sc) |= FNIC_IO_TERM_ISSUED;
+		atomic64_inc(&fnic_stats->term_stats.terminates);
+	}
 
 	/*
 	 * We queued an abort IO, wait for its completion.
@@ -1667,6 +1847,7 @@ int fnic_abort_cmd(struct scsi_cmnd *sc)
 
 	io_req = (struct fnic_io_req *)CMD_SP(sc);
 	if (!io_req) {
+		atomic64_inc(&fnic_stats->io_stats.ioreq_null);
 		spin_unlock_irqrestore(io_lock, flags);
 		CMD_FLAGS(sc) |= FNIC_IO_ABT_TERM_REQ_NULL;
 		ret = FAILED;
@@ -1677,6 +1858,15 @@ int fnic_abort_cmd(struct scsi_cmnd *sc)
 	/* fw did not complete abort, timed out */
 	if (CMD_ABTS_STATUS(sc) == FCPIO_INVALID_CODE) {
 		spin_unlock_irqrestore(io_lock, flags);
+		if (task_req == FCPIO_ITMF_ABT_TASK) {
+			FNIC_SCSI_DBG(KERN_INFO,
+				fnic->lport->host, "Abort Driver Timeout\n");
+			atomic64_inc(&abts_stats->abort_drv_timeouts);
+		} else {
+			FNIC_SCSI_DBG(KERN_INFO, fnic->lport->host,
+				"Terminate Driver Timeout\n");
+			atomic64_inc(&term_stats->terminate_drv_timeouts);
+		}
 		CMD_FLAGS(sc) |= FNIC_IO_ABT_TERM_TIMED_OUT;
 		ret = FAILED;
 		goto fnic_abort_cmd_end;
@@ -1721,6 +1911,7 @@ static inline int fnic_queue_dr_io_req(struct fnic *fnic,
 {
 	struct vnic_wq_copy *wq = &fnic->wq_copy[0];
 	struct Scsi_Host *host = fnic->lport->host;
+	struct misc_stats *misc_stats = &fnic->fnic_stats.misc_stats;
 	struct scsi_lun fc_lun;
 	int ret = 0;
 	unsigned long intr_flags;
@@ -1742,6 +1933,7 @@ static inline int fnic_queue_dr_io_req(struct fnic *fnic,
 	if (!vnic_wq_copy_desc_avail(wq)) {
 		FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host,
 			  "queue_dr_io_req failure - no descriptors\n");
+		atomic64_inc(&misc_stats->devrst_cpwq_alloc_failures);
 		ret = -EAGAIN;
 		goto lr_io_req_end;
 	}
@@ -1754,6 +1946,12 @@ static inline int fnic_queue_dr_io_req(struct fnic *fnic,
 				     fc_lun.scsi_lun, io_req->port_id,
 				     fnic->config.ra_tov, fnic->config.ed_tov);
 
+	atomic64_inc(&fnic->fnic_stats.fw_stats.active_fw_reqs);
+	if (atomic64_read(&fnic->fnic_stats.fw_stats.active_fw_reqs) >
+		  atomic64_read(&fnic->fnic_stats.fw_stats.max_fw_reqs))
+		atomic64_set(&fnic->fnic_stats.fw_stats.max_fw_reqs,
+		  atomic64_read(&fnic->fnic_stats.fw_stats.active_fw_reqs));
+
 lr_io_req_end:
 	spin_unlock_irqrestore(&fnic->wq_copy_lock[0], intr_flags);
 	atomic_dec(&fnic->in_flight);
@@ -1988,6 +2186,8 @@ int fnic_device_reset(struct scsi_cmnd *sc)
 	unsigned long flags;
 	unsigned long start_time = 0;
 	struct scsi_lun fc_lun;
+	struct fnic_stats *fnic_stats;
+	struct reset_stats *reset_stats;
 	int tag = 0;
 	DECLARE_COMPLETION_ONSTACK(tm_done);
 	int tag_gen_flag = 0;   /*to track tags allocated by fnic driver*/
@@ -1999,6 +2199,10 @@ int fnic_device_reset(struct scsi_cmnd *sc)
 	lp = shost_priv(sc->device->host);
 
 	fnic = lport_priv(lp);
+	fnic_stats = &fnic->fnic_stats;
+	reset_stats = &fnic->fnic_stats.reset_stats;
+
+	atomic64_inc(&reset_stats->device_resets);
 
 	rport = starget_to_rport(scsi_target(sc->device));
 	FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host,
@@ -2009,8 +2213,10 @@ int fnic_device_reset(struct scsi_cmnd *sc)
 		goto fnic_device_reset_end;
 
 	/* Check if remote port up */
-	if (fc_remote_port_chkready(rport))
+	if (fc_remote_port_chkready(rport)) {
+		atomic64_inc(&fnic_stats->misc_stats.rport_not_ready);
 		goto fnic_device_reset_end;
+	}
 
 	CMD_FLAGS(sc) = FNIC_DEVICE_RESET;
 	/* Allocate tag if not present */
@@ -2086,6 +2292,7 @@ int fnic_device_reset(struct scsi_cmnd *sc)
 	 * gets cleaned up during higher levels of EH
 	 */
 	if (status == FCPIO_INVALID_CODE) {
+		atomic64_inc(&reset_stats->device_reset_timeouts);
 		FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host,
 			      "Device reset timed out\n");
 		CMD_FLAGS(sc) |= FNIC_DEV_RST_TIMED_OUT;
@@ -2199,6 +2406,10 @@ fnic_device_reset_end:
 		      "Returning from device reset %s\n",
 		      (ret == SUCCESS) ?
 		      "SUCCESS" : "FAILED");
+
+	if (ret == FAILED)
+		atomic64_inc(&reset_stats->device_reset_failures);
+
 	return ret;
 }
 
@@ -2208,13 +2419,17 @@ int fnic_reset(struct Scsi_Host *shost)
 	struct fc_lport *lp;
 	struct fnic *fnic;
 	int ret = 0;
+	struct reset_stats *reset_stats;
 
 	lp = shost_priv(shost);
 	fnic = lport_priv(lp);
+	reset_stats = &fnic->fnic_stats.reset_stats;
 
 	FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host,
 		      "fnic_reset called\n");
 
+	atomic64_inc(&reset_stats->fnic_resets);
+
 	/*
 	 * Reset local port, this will clean up libFC exchanges,
 	 * reset remote port sessions, and if link is up, begin flogi
@@ -2226,6 +2441,11 @@ int fnic_reset(struct Scsi_Host *shost)
 		      (ret == 0) ?
 		      "SUCCESS" : "FAILED");
 
+	if (ret == 0)
+		atomic64_inc(&reset_stats->fnic_reset_completions);
+	else
+		atomic64_inc(&reset_stats->fnic_reset_failures);
+
 	return ret;
 }
 
diff --git a/drivers/scsi/fnic/fnic_stats.h b/drivers/scsi/fnic/fnic_stats.h
new file mode 100644
index 000000000000..540cceb843cd
--- /dev/null
+++ b/drivers/scsi/fnic/fnic_stats.h
@@ -0,0 +1,116 @@
+/*
+ * Copyright 2013 Cisco Systems, Inc.  All rights reserved.
+ *
+ * This program is free software; you may redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef _FNIC_STATS_H_
+#define _FNIC_STATS_H_
+struct io_path_stats {
+	atomic64_t active_ios;
+	atomic64_t max_active_ios;
+	atomic64_t io_completions;
+	atomic64_t io_failures;
+	atomic64_t ioreq_null;
+	atomic64_t alloc_failures;
+	atomic64_t sc_null;
+	atomic64_t io_not_found;
+	atomic64_t num_ios;
+};
+
+struct abort_stats {
+	atomic64_t aborts;
+	atomic64_t abort_failures;
+	atomic64_t abort_drv_timeouts;
+	atomic64_t abort_fw_timeouts;
+	atomic64_t abort_io_not_found;
+};
+
+struct terminate_stats {
+	atomic64_t terminates;
+	atomic64_t max_terminates;
+	atomic64_t terminate_drv_timeouts;
+	atomic64_t terminate_fw_timeouts;
+	atomic64_t terminate_io_not_found;
+	atomic64_t terminate_failures;
+};
+
+struct reset_stats {
+	atomic64_t device_resets;
+	atomic64_t device_reset_failures;
+	atomic64_t device_reset_aborts;
+	atomic64_t device_reset_timeouts;
+	atomic64_t device_reset_terminates;
+	atomic64_t fw_resets;
+	atomic64_t fw_reset_completions;
+	atomic64_t fw_reset_failures;
+	atomic64_t fnic_resets;
+	atomic64_t fnic_reset_completions;
+	atomic64_t fnic_reset_failures;
+};
+
+struct fw_stats {
+	atomic64_t active_fw_reqs;
+	atomic64_t max_fw_reqs;
+	atomic64_t fw_out_of_resources;
+	atomic64_t io_fw_errs;
+};
+
+struct vlan_stats {
+	atomic64_t vlan_disc_reqs;
+	atomic64_t resp_withno_vlanID;
+	atomic64_t sol_expiry_count;
+	atomic64_t flogi_rejects;
+};
+
+struct misc_stats {
+	u64 last_isr_time;
+	u64 last_ack_time;
+	atomic64_t isr_count;
+	atomic64_t max_cq_entries;
+	atomic64_t ack_index_out_of_range;
+	atomic64_t data_count_mismatch;
+	atomic64_t fcpio_timeout;
+	atomic64_t fcpio_aborted;
+	atomic64_t sgl_invalid;
+	atomic64_t mss_invalid;
+	atomic64_t abts_cpwq_alloc_failures;
+	atomic64_t devrst_cpwq_alloc_failures;
+	atomic64_t io_cpwq_alloc_failures;
+	atomic64_t no_icmnd_itmf_cmpls;
+	atomic64_t queue_fulls;
+	atomic64_t rport_not_ready;
+	atomic64_t frame_errors;
+};
+
+struct fnic_stats {
+	struct io_path_stats io_stats;
+	struct abort_stats abts_stats;
+	struct terminate_stats term_stats;
+	struct reset_stats reset_stats;
+	struct fw_stats fw_stats;
+	struct vlan_stats vlan_stats;
+	struct misc_stats misc_stats;
+};
+
+struct stats_debug_info {
+	char *debug_buffer;
+	void *i_private;
+	int buf_size;
+	int buffer_len;
+};
+
+int fnic_get_stats_data(struct stats_debug_info *, struct fnic_stats *);
+int fnic_stats_debugfs_init(struct fnic *);
+void fnic_stats_debugfs_remove(struct fnic *);
+#endif /* _FNIC_STATS_H_ */
diff --git a/drivers/scsi/fnic/fnic_trace.c b/drivers/scsi/fnic/fnic_trace.c
index 23a60e3d8527..e002e7187dc0 100644
--- a/drivers/scsi/fnic/fnic_trace.c
+++ b/drivers/scsi/fnic/fnic_trace.c
@@ -188,6 +188,191 @@ int fnic_get_trace_data(fnic_dbgfs_t *fnic_dbgfs_prt)
 	return len;
 }
 
+/*
+ * fnic_get_stats_data - Copy fnic stats buffer to a memory file
+ * @fnic_dbgfs_t: pointer to debugfs fnic stats buffer
+ *
+ * Description:
+ * This routine gathers the fnic stats debugfs data from the fnic_stats struct
+ * and dumps it to stats_debug_info.
+ *
+ * Return Value:
+ * This routine returns the amount of bytes that were dumped into
+ * stats_debug_info
+ */
+int fnic_get_stats_data(struct stats_debug_info *debug,
+			struct fnic_stats *stats)
+{
+	int len = 0;
+	int buf_size = debug->buf_size;
+	struct timespec val1, val2;
+
+	len = snprintf(debug->debug_buffer + len, buf_size - len,
+		  "------------------------------------------\n"
+		  "\t\tIO Statistics\n"
+		  "------------------------------------------\n");
+	len += snprintf(debug->debug_buffer + len, buf_size - len,
+		  "Number of Active IOs: %lld\nMaximum Active IOs: %lld\n"
+		  "Number of IOs: %lld\nNumber of IO Completions: %lld\n"
+		  "Number of IO Failures: %lld\nNumber of IO NOT Found: %lld\n"
+		  "Number of Memory alloc Failures: %lld\n"
+		  "Number of IOREQ Null: %lld\n"
+		  "Number of SCSI cmd pointer Null: %lld\n",
+		  (u64)atomic64_read(&stats->io_stats.active_ios),
+		  (u64)atomic64_read(&stats->io_stats.max_active_ios),
+		  (u64)atomic64_read(&stats->io_stats.num_ios),
+		  (u64)atomic64_read(&stats->io_stats.io_completions),
+		  (u64)atomic64_read(&stats->io_stats.io_failures),
+		  (u64)atomic64_read(&stats->io_stats.io_not_found),
+		  (u64)atomic64_read(&stats->io_stats.alloc_failures),
+		  (u64)atomic64_read(&stats->io_stats.ioreq_null),
+		  (u64)atomic64_read(&stats->io_stats.sc_null));
+
+	len += snprintf(debug->debug_buffer + len, buf_size - len,
+		  "\n------------------------------------------\n"
+		  "\t\tAbort Statistics\n"
+		  "------------------------------------------\n");
+	len += snprintf(debug->debug_buffer + len, buf_size - len,
+		  "Number of Aborts: %lld\n"
+		  "Number of Abort Failures: %lld\n"
+		  "Number of Abort Driver Timeouts: %lld\n"
+		  "Number of Abort FW Timeouts: %lld\n"
+		  "Number of Abort IO NOT Found: %lld\n",
+		  (u64)atomic64_read(&stats->abts_stats.aborts),
+		  (u64)atomic64_read(&stats->abts_stats.abort_failures),
+		  (u64)atomic64_read(&stats->abts_stats.abort_drv_timeouts),
+		  (u64)atomic64_read(&stats->abts_stats.abort_fw_timeouts),
+		  (u64)atomic64_read(&stats->abts_stats.abort_io_not_found));
+
+	len += snprintf(debug->debug_buffer + len, buf_size - len,
+		  "\n------------------------------------------\n"
+		  "\t\tTerminate Statistics\n"
+		  "------------------------------------------\n");
+	len += snprintf(debug->debug_buffer + len, buf_size - len,
+		  "Number of Terminates: %lld\n"
+		  "Maximum Terminates: %lld\n"
+		  "Number of Terminate Driver Timeouts: %lld\n"
+		  "Number of Terminate FW Timeouts: %lld\n"
+		  "Number of Terminate IO NOT Found: %lld\n"
+		  "Number of Terminate Failures: %lld\n",
+		  (u64)atomic64_read(&stats->term_stats.terminates),
+		  (u64)atomic64_read(&stats->term_stats.max_terminates),
+		  (u64)atomic64_read(&stats->term_stats.terminate_drv_timeouts),
+		  (u64)atomic64_read(&stats->term_stats.terminate_fw_timeouts),
+		  (u64)atomic64_read(&stats->term_stats.terminate_io_not_found),
+		  (u64)atomic64_read(&stats->term_stats.terminate_failures));
+
+	len += snprintf(debug->debug_buffer + len, buf_size - len,
+		  "\n------------------------------------------\n"
+		  "\t\tReset Statistics\n"
+		  "------------------------------------------\n");
+
+	len += snprintf(debug->debug_buffer + len, buf_size - len,
+		  "Number of Device Resets: %lld\n"
+		  "Number of Device Reset Failures: %lld\n"
+		  "Number of Device Reset Aborts: %lld\n"
+		  "Number of Device Reset Timeouts: %lld\n"
+		  "Number of Device Reset Terminates: %lld\n"
+		  "Number of FW Resets: %lld\n"
+		  "Number of FW Reset Completions: %lld\n"
+		  "Number of FW Reset Failures: %lld\n"
+		  "Number of Fnic Reset: %lld\n"
+		  "Number of Fnic Reset Completions: %lld\n"
+		  "Number of Fnic Reset Failures: %lld\n",
+		  (u64)atomic64_read(&stats->reset_stats.device_resets),
+		  (u64)atomic64_read(&stats->reset_stats.device_reset_failures),
+		  (u64)atomic64_read(&stats->reset_stats.device_reset_aborts),
+		  (u64)atomic64_read(&stats->reset_stats.device_reset_timeouts),
+		  (u64)atomic64_read(
+			  &stats->reset_stats.device_reset_terminates),
+		  (u64)atomic64_read(&stats->reset_stats.fw_resets),
+		  (u64)atomic64_read(&stats->reset_stats.fw_reset_completions),
+		  (u64)atomic64_read(&stats->reset_stats.fw_reset_failures),
+		  (u64)atomic64_read(&stats->reset_stats.fnic_resets),
+		  (u64)atomic64_read(
+			  &stats->reset_stats.fnic_reset_completions),
+		  (u64)atomic64_read(&stats->reset_stats.fnic_reset_failures));
+
+	len += snprintf(debug->debug_buffer + len, buf_size - len,
+		  "\n------------------------------------------\n"
+		  "\t\tFirmware Statistics\n"
+		  "------------------------------------------\n");
+
+	len += snprintf(debug->debug_buffer + len, buf_size - len,
+		  "Number of Active FW Requests %lld\n"
+		  "Maximum FW Requests: %lld\n"
+		  "Number of FW out of resources: %lld\n"
+		  "Number of FW IO errors: %lld\n",
+		  (u64)atomic64_read(&stats->fw_stats.active_fw_reqs),
+		  (u64)atomic64_read(&stats->fw_stats.max_fw_reqs),
+		  (u64)atomic64_read(&stats->fw_stats.fw_out_of_resources),
+		  (u64)atomic64_read(&stats->fw_stats.io_fw_errs));
+
+	len += snprintf(debug->debug_buffer + len, buf_size - len,
+		  "\n------------------------------------------\n"
+		  "\t\tVlan Discovery Statistics\n"
+		  "------------------------------------------\n");
+
+	len += snprintf(debug->debug_buffer + len, buf_size - len,
+		  "Number of Vlan Discovery Requests Sent %lld\n"
+		  "Vlan Response Received with no FCF VLAN ID: %lld\n"
+		  "No solicitations recvd after vlan set, expiry count: %lld\n"
+		  "Flogi rejects count: %lld\n",
+		  (u64)atomic64_read(&stats->vlan_stats.vlan_disc_reqs),
+		  (u64)atomic64_read(&stats->vlan_stats.resp_withno_vlanID),
+		  (u64)atomic64_read(&stats->vlan_stats.sol_expiry_count),
+		  (u64)atomic64_read(&stats->vlan_stats.flogi_rejects));
+
+	len += snprintf(debug->debug_buffer + len, buf_size - len,
+		  "\n------------------------------------------\n"
+		  "\t\tOther Important Statistics\n"
+		  "------------------------------------------\n");
+
+	jiffies_to_timespec(stats->misc_stats.last_isr_time, &val1);
+	jiffies_to_timespec(stats->misc_stats.last_ack_time, &val2);
+
+	len += snprintf(debug->debug_buffer + len, buf_size - len,
+		  "Last ISR time: %llu (%8lu.%8lu)\n"
+		  "Last ACK time: %llu (%8lu.%8lu)\n"
+		  "Number of ISRs: %lld\n"
+		  "Maximum CQ Entries: %lld\n"
+		  "Number of ACK index out of range: %lld\n"
+		  "Number of data count mismatch: %lld\n"
+		  "Number of FCPIO Timeouts: %lld\n"
+		  "Number of FCPIO Aborted: %lld\n"
+		  "Number of SGL Invalid: %lld\n"
+		  "Number of Copy WQ Alloc Failures for ABTs: %lld\n"
+		  "Number of Copy WQ Alloc Failures for Device Reset: %lld\n"
+		  "Number of Copy WQ Alloc Failures for IOs: %lld\n"
+		  "Number of no icmnd itmf Completions: %lld\n"
+		  "Number of QUEUE Fulls: %lld\n"
+		  "Number of rport not ready: %lld\n"
+		  "Number of receive frame errors: %lld\n",
+		  (u64)stats->misc_stats.last_isr_time,
+		  val1.tv_sec, val1.tv_nsec,
+		  (u64)stats->misc_stats.last_ack_time,
+		  val2.tv_sec, val2.tv_nsec,
+		  (u64)atomic64_read(&stats->misc_stats.isr_count),
+		  (u64)atomic64_read(&stats->misc_stats.max_cq_entries),
+		  (u64)atomic64_read(&stats->misc_stats.ack_index_out_of_range),
+		  (u64)atomic64_read(&stats->misc_stats.data_count_mismatch),
+		  (u64)atomic64_read(&stats->misc_stats.fcpio_timeout),
+		  (u64)atomic64_read(&stats->misc_stats.fcpio_aborted),
+		  (u64)atomic64_read(&stats->misc_stats.sgl_invalid),
+		  (u64)atomic64_read(
+			  &stats->misc_stats.abts_cpwq_alloc_failures),
+		  (u64)atomic64_read(
+			  &stats->misc_stats.devrst_cpwq_alloc_failures),
+		  (u64)atomic64_read(&stats->misc_stats.io_cpwq_alloc_failures),
+		  (u64)atomic64_read(&stats->misc_stats.no_icmnd_itmf_cmpls),
+		  (u64)atomic64_read(&stats->misc_stats.queue_fulls),
+		  (u64)atomic64_read(&stats->misc_stats.rport_not_ready),
+		  (u64)atomic64_read(&stats->misc_stats.frame_errors));
+
+	return len;
+
+}
+
 /*
  * fnic_trace_buf_init - Initialize fnic trace buffer logging facility
  *
diff --git a/drivers/scsi/fnic/fnic_trace.h b/drivers/scsi/fnic/fnic_trace.h
index cef42b4c4d6c..d412f2ee3c4f 100644
--- a/drivers/scsi/fnic/fnic_trace.h
+++ b/drivers/scsi/fnic/fnic_trace.h
@@ -84,7 +84,8 @@ fnic_trace_data_t *fnic_trace_get_buf(void);
 int fnic_get_trace_data(fnic_dbgfs_t *);
 int fnic_trace_buf_init(void);
 void fnic_trace_free(void);
+int fnic_debugfs_init(void);
+void fnic_debugfs_terminate(void);
 int fnic_trace_debugfs_init(void);
 void fnic_trace_debugfs_terminate(void);
-
 #endif
-- 
cgit 


From 5ae303443094ab49fca41cf331d5af189995bead Mon Sep 17 00:00:00 2001
From: Hiral Patel <hiralpat@cisco.com>
Date: Thu, 12 Sep 2013 17:45:43 -0700
Subject: [SCSI] fnic: Incremented driver version

Signed-off-by: Hiral Patel <hiralpat@cisco.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/fnic/fnic.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/fnic/fnic.h b/drivers/scsi/fnic/fnic.h
index db7a9506ccd3..528d43b7b569 100644
--- a/drivers/scsi/fnic/fnic.h
+++ b/drivers/scsi/fnic/fnic.h
@@ -39,7 +39,7 @@
 
 #define DRV_NAME		"fnic"
 #define DRV_DESCRIPTION		"Cisco FCoE HBA Driver"
-#define DRV_VERSION		"1.5.0.23"
+#define DRV_VERSION		"1.5.0.45"
 #define PFX			DRV_NAME ": "
 #define DFX                     DRV_NAME "%d: "
 
-- 
cgit 


From eeceec904031f859d3f348ab38fe4329c91f7550 Mon Sep 17 00:00:00 2001
From: Khalid Aziz <khalid.aziz@oracle.com>
Date: Fri, 13 Sep 2013 13:44:06 -0600
Subject: [SCSI] buslogic: Added check for DMA mapping errors

Added check for DMA mapping errors for request sense data
buffer. Checking for mapping error can avoid potential wild
writes. This patch was prompted by the warning from
dma_unmap when kernel is compiled with CONFIG_DMA_API_DEBUG.

Signed-off-by: Khalid Aziz <khalid.aziz@oracle.com>
Tested-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/BusLogic.c | 36 +++++++++++++++++++++++-------------
 1 file changed, 23 insertions(+), 13 deletions(-)

diff --git a/drivers/scsi/BusLogic.c b/drivers/scsi/BusLogic.c
index 757eb0716d45..972f8176665f 100644
--- a/drivers/scsi/BusLogic.c
+++ b/drivers/scsi/BusLogic.c
@@ -26,8 +26,8 @@
 
 */
 
-#define blogic_drvr_version		"2.1.16"
-#define blogic_drvr_date		"18 July 2002"
+#define blogic_drvr_version		"2.1.17"
+#define blogic_drvr_date		"12 September 2013"
 
 #include <linux/module.h>
 #include <linux/init.h>
@@ -311,12 +311,14 @@ static struct blogic_ccb *blogic_alloc_ccb(struct blogic_adapter *adapter)
   caller.
 */
 
-static void blogic_dealloc_ccb(struct blogic_ccb *ccb)
+static void blogic_dealloc_ccb(struct blogic_ccb *ccb, int dma_unmap)
 {
 	struct blogic_adapter *adapter = ccb->adapter;
 
-	scsi_dma_unmap(ccb->command);
-	pci_unmap_single(adapter->pci_device, ccb->sensedata,
+	if (ccb->command != NULL)
+		scsi_dma_unmap(ccb->command);
+	if (dma_unmap)
+		pci_unmap_single(adapter->pci_device, ccb->sensedata,
 			 ccb->sense_datalen, PCI_DMA_FROMDEVICE);
 
 	ccb->command = NULL;
@@ -2762,8 +2764,8 @@ static void blogic_process_ccbs(struct blogic_adapter *adapter)
 			/*
 			   Place CCB back on the Host Adapter's free list.
 			 */
-			blogic_dealloc_ccb(ccb);
-#if 0				/* this needs to be redone different for new EH */
+			blogic_dealloc_ccb(ccb, 1);
+#if 0			/* this needs to be redone different for new EH */
 			/*
 			   Bus Device Reset CCBs have the command field
 			   non-NULL only when a Bus Device Reset was requested
@@ -2791,7 +2793,7 @@ static void blogic_process_ccbs(struct blogic_adapter *adapter)
 				if (ccb->status == BLOGIC_CCB_RESET &&
 						ccb->tgt_id == tgt_id) {
 					command = ccb->command;
-					blogic_dealloc_ccb(ccb);
+					blogic_dealloc_ccb(ccb, 1);
 					adapter->active_cmds[tgt_id]--;
 					command->result = DID_RESET << 16;
 					command->scsi_done(command);
@@ -2862,7 +2864,7 @@ static void blogic_process_ccbs(struct blogic_adapter *adapter)
 			/*
 			   Place CCB back on the Host Adapter's free list.
 			 */
-			blogic_dealloc_ccb(ccb);
+			blogic_dealloc_ccb(ccb, 1);
 			/*
 			   Call the SCSI Command Completion Routine.
 			 */
@@ -3034,6 +3036,7 @@ static int blogic_qcmd_lck(struct scsi_cmnd *command,
 	int buflen = scsi_bufflen(command);
 	int count;
 	struct blogic_ccb *ccb;
+	dma_addr_t sense_buf;
 
 	/*
 	   SCSI REQUEST_SENSE commands will be executed automatically by the
@@ -3179,10 +3182,17 @@ static int blogic_qcmd_lck(struct scsi_cmnd *command,
 	}
 	memcpy(ccb->cdb, cdb, cdblen);
 	ccb->sense_datalen = SCSI_SENSE_BUFFERSIZE;
-	ccb->sensedata = pci_map_single(adapter->pci_device,
+	ccb->command = command;
+	sense_buf = pci_map_single(adapter->pci_device,
 				command->sense_buffer, ccb->sense_datalen,
 				PCI_DMA_FROMDEVICE);
-	ccb->command = command;
+	if (dma_mapping_error(&adapter->pci_device->dev, sense_buf)) {
+		blogic_err("DMA mapping for sense data buffer failed\n",
+				adapter);
+		blogic_dealloc_ccb(ccb, 0);
+		return SCSI_MLQUEUE_HOST_BUSY;
+	}
+	ccb->sensedata = sense_buf;
 	command->scsi_done = comp_cb;
 	if (blogic_multimaster_type(adapter)) {
 		/*
@@ -3203,7 +3213,7 @@ static int blogic_qcmd_lck(struct scsi_cmnd *command,
 			if (!blogic_write_outbox(adapter, BLOGIC_MBOX_START,
 						ccb)) {
 				blogic_warn("Still unable to write Outgoing Mailbox - " "Host Adapter Dead?\n", adapter);
-				blogic_dealloc_ccb(ccb);
+				blogic_dealloc_ccb(ccb, 1);
 				command->result = DID_ERROR << 16;
 				command->scsi_done(command);
 			}
@@ -3337,7 +3347,7 @@ static int blogic_resetadapter(struct blogic_adapter *adapter, bool hard_reset)
 
 	for (ccb = adapter->all_ccbs; ccb != NULL; ccb = ccb->next_all)
 		if (ccb->status == BLOGIC_CCB_ACTIVE)
-			blogic_dealloc_ccb(ccb);
+			blogic_dealloc_ccb(ccb, 1);
 	/*
 	 * Wait a few seconds between the Host Adapter Hard Reset which
 	 * initiates a SCSI Bus Reset and issuing any SCSI Commands.  Some
-- 
cgit 


From 3993a86241a036aaf7204586c94b839db239c402 Mon Sep 17 00:00:00 2001
From: "Sumit.Saxena@lsi.com" <Sumit.Saxena@lsi.com>
Date: Mon, 16 Sep 2013 15:18:06 +0530
Subject: [SCSI] megaraid_sas: fixes for few endianess issues

Fixed two issues in this patch-
1) In function megasas_get_pd_list(), data read(pd_addr->deviceId) from DMAed memory is converted to CPU's endianess.
2) While register AEN, removed some endianness conversion on some fields, since their endianess is already converted.

Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/megaraid/megaraid_sas_base.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 3020921a4746..e62ff020c253 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -3199,11 +3199,11 @@ megasas_get_pd_list(struct megasas_instance *instance)
 
 		for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) {
 
-			instance->pd_list[pd_addr->deviceId].tid	=
+			instance->pd_list[le16_to_cpu(pd_addr->deviceId)].tid	=
 				le16_to_cpu(pd_addr->deviceId);
-			instance->pd_list[pd_addr->deviceId].driveType	=
+			instance->pd_list[le16_to_cpu(pd_addr->deviceId)].driveType	=
 							pd_addr->scsiDevType;
-			instance->pd_list[pd_addr->deviceId].driveState	=
+			instance->pd_list[le16_to_cpu(pd_addr->deviceId)].driveState	=
 							MR_PD_STATE_SYSTEM;
 			pd_addr++;
 		}
@@ -3998,7 +3998,7 @@ megasas_register_aen(struct megasas_instance *instance, u32 seq_num,
 		 * values
 		 */
 		if ((prev_aen.members.class <= curr_aen.members.class) &&
-		    !((le16_to_cpu(prev_aen.members.locale) & curr_aen.members.locale) ^
+		    !((prev_aen.members.locale & curr_aen.members.locale) ^
 		      curr_aen.members.locale)) {
 			/*
 			 * Previously issued event registration includes
@@ -4006,7 +4006,7 @@ megasas_register_aen(struct megasas_instance *instance, u32 seq_num,
 			 */
 			return 0;
 		} else {
-			curr_aen.members.locale |= le16_to_cpu(prev_aen.members.locale);
+			curr_aen.members.locale |= prev_aen.members.locale;
 
 			if (prev_aen.members.class < curr_aen.members.class)
 				curr_aen.members.class = prev_aen.members.class;
@@ -4097,7 +4097,7 @@ static int megasas_start_aen(struct megasas_instance *instance)
 	class_locale.members.class = MR_EVT_CLASS_DEBUG;
 
 	return megasas_register_aen(instance,
-			le32_to_cpu(eli.newest_seq_num) + 1,
+			eli.newest_seq_num + 1,
 			class_locale.word);
 }
 
-- 
cgit 


From ad8bd45ed6cde29e668cdc40426f9c894274155d Mon Sep 17 00:00:00 2001
From: Manish Rangankar <manish.rangankar@qlogic.com>
Date: Tue, 17 Sep 2013 07:30:02 -0400
Subject: [SCSI] qla4xxx: correctly update session discovery_parent_idx.

Earlier logic for driver created iscsi_session->discovery_parent_idx
was to store ram index of a sendtarget entry, but driver frees
sendtarget ram index as soon as firmware is done with discovery,
which is available for further use. So changing the logic to point
iscsi_session->discovery_parent_idx to store sendtarget flashnode index.

Signed-off-by: Manish Rangankar <manish.rangankar@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/qla4xxx/ql4_def.h |   1 +
 drivers/scsi/qla4xxx/ql4_os.c  | 199 +++++++++++++++++++++++++++++++++++++----
 2 files changed, 181 insertions(+), 19 deletions(-)

diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h
index 41327d46ecf5..084d1fd59c9e 100644
--- a/drivers/scsi/qla4xxx/ql4_def.h
+++ b/drivers/scsi/qla4xxx/ql4_def.h
@@ -306,6 +306,7 @@ struct ddb_entry {
 struct qla_ddb_index {
 	struct list_head list;
 	uint16_t fw_ddb_idx;
+	uint16_t flash_ddb_idx;
 	struct dev_db_entry fw_ddb;
 	uint8_t flash_isid[6];
 };
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index f8a0a26a3cd4..a8847a31273d 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -2373,11 +2373,6 @@ static void qla4xxx_copy_to_sess_conn_params(struct iscsi_conn *conn,
 	COPY_ISID(sess->isid, fw_ddb_entry->isid);
 
 	ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
-	if (ddb_link < MAX_DDB_ENTRIES)
-		sess->discovery_parent_idx = ddb_link;
-	else
-		sess->discovery_parent_idx = DDB_NO_LINK;
-
 	if (ddb_link == DDB_ISNS)
 		disc_parent = ISCSI_DISC_PARENT_ISNS;
 	else if (ddb_link == DDB_NO_LINK)
@@ -4937,7 +4932,8 @@ static int qla4xxx_compare_tuple_ddb(struct scsi_qla_host *ha,
 }
 
 static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
-				     struct dev_db_entry *fw_ddb_entry)
+				     struct dev_db_entry *fw_ddb_entry,
+				     uint32_t *index)
 {
 	struct ddb_entry *ddb_entry;
 	struct ql4_tuple_ddb *fw_tddb = NULL;
@@ -4971,6 +4967,8 @@ static int qla4xxx_is_session_exists(struct scsi_qla_host *ha,
 		qla4xxx_get_param_ddb(ddb_entry, tmp_tddb);
 		if (!qla4xxx_compare_tuple_ddb(ha, fw_tddb, tmp_tddb, false)) {
 			ret = QLA_SUCCESS; /* found */
+			if (index != NULL)
+				*index = idx;
 			goto exit_check;
 		}
 	}
@@ -5267,6 +5265,87 @@ static void qla4xxx_wait_for_ip_configuration(struct scsi_qla_host *ha)
 	} while (time_after(wtime, jiffies));
 }
 
+static int qla4xxx_cmp_fw_stentry(struct dev_db_entry *fw_ddb_entry,
+				  struct dev_db_entry *flash_ddb_entry)
+{
+	uint16_t options = 0;
+	size_t ip_len = IP_ADDR_LEN;
+
+	options = le16_to_cpu(fw_ddb_entry->options);
+	if (options & DDB_OPT_IPV6_DEVICE)
+		ip_len = IPv6_ADDR_LEN;
+
+	if (memcmp(fw_ddb_entry->ip_addr, flash_ddb_entry->ip_addr, ip_len))
+		return QLA_ERROR;
+
+	if (memcmp(&fw_ddb_entry->isid[0], &flash_ddb_entry->isid[0],
+		   sizeof(fw_ddb_entry->isid)))
+		return QLA_ERROR;
+
+	if (memcmp(&fw_ddb_entry->port, &flash_ddb_entry->port,
+		   sizeof(fw_ddb_entry->port)))
+		return QLA_ERROR;
+
+	return QLA_SUCCESS;
+}
+
+static int qla4xxx_find_flash_st_idx(struct scsi_qla_host *ha,
+				     struct dev_db_entry *fw_ddb_entry,
+				     uint32_t fw_idx, uint32_t *flash_index)
+{
+	struct dev_db_entry *flash_ddb_entry;
+	dma_addr_t flash_ddb_entry_dma;
+	uint32_t idx = 0;
+	int max_ddbs;
+	int ret = QLA_ERROR, status;
+
+	max_ddbs =  is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
+				     MAX_DEV_DB_ENTRIES;
+
+	flash_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
+					 &flash_ddb_entry_dma);
+	if (flash_ddb_entry == NULL || fw_ddb_entry == NULL) {
+		ql4_printk(KERN_ERR, ha, "Out of memory\n");
+		goto exit_find_st_idx;
+	}
+
+	status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
+					  flash_ddb_entry_dma, fw_idx);
+	if (status == QLA_SUCCESS) {
+		status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
+		if (status == QLA_SUCCESS) {
+			*flash_index = fw_idx;
+			ret = QLA_SUCCESS;
+			goto exit_find_st_idx;
+		}
+	}
+
+	for (idx = 0; idx < max_ddbs; idx++) {
+		status = qla4xxx_flashdb_by_index(ha, flash_ddb_entry,
+						  flash_ddb_entry_dma, idx);
+		if (status == QLA_ERROR)
+			continue;
+
+		status = qla4xxx_cmp_fw_stentry(fw_ddb_entry, flash_ddb_entry);
+		if (status == QLA_SUCCESS) {
+			*flash_index = idx;
+			ret = QLA_SUCCESS;
+			goto exit_find_st_idx;
+		}
+	}
+
+	if (idx == max_ddbs)
+		ql4_printk(KERN_ERR, ha, "Failed to find ST [%d] in flash\n",
+			   fw_idx);
+
+exit_find_st_idx:
+	if (flash_ddb_entry)
+		dma_pool_free(ha->fw_ddb_dma_pool, flash_ddb_entry,
+			      flash_ddb_entry_dma);
+
+	return ret;
+}
+
 static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
 				  struct list_head *list_st)
 {
@@ -5278,6 +5357,7 @@ static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
 	int ret;
 	uint32_t idx = 0, next_idx = 0;
 	uint32_t state = 0, conn_err = 0;
+	uint32_t flash_index = -1;
 	uint16_t conn_id = 0;
 
 	fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
@@ -5310,6 +5390,19 @@ static void qla4xxx_build_st_list(struct scsi_qla_host *ha,
 		if (!st_ddb_idx)
 			break;
 
+		ret = qla4xxx_find_flash_st_idx(ha, fw_ddb_entry, idx,
+						&flash_index);
+		if (ret == QLA_ERROR) {
+			ql4_printk(KERN_ERR, ha,
+				   "No flash entry for ST at idx [%d]\n", idx);
+			st_ddb_idx->flash_ddb_idx = idx;
+		} else {
+			ql4_printk(KERN_INFO, ha,
+				   "ST at idx [%d] is stored at flash [%d]\n",
+				   idx, flash_index);
+			st_ddb_idx->flash_ddb_idx = flash_index;
+		}
+
 		st_ddb_idx->fw_ddb_idx = idx;
 
 		list_add_tail(&st_ddb_idx->list, list_st);
@@ -5354,6 +5447,28 @@ static void qla4xxx_remove_failed_ddb(struct scsi_qla_host *ha,
 	}
 }
 
+static void qla4xxx_update_sess_disc_idx(struct scsi_qla_host *ha,
+					 struct ddb_entry *ddb_entry,
+					 struct dev_db_entry *fw_ddb_entry)
+{
+	struct iscsi_cls_session *cls_sess;
+	struct iscsi_session *sess;
+	uint32_t max_ddbs = 0;
+	uint16_t ddb_link = -1;
+
+	max_ddbs =  is_qla40XX(ha) ? MAX_DEV_DB_ENTRIES_40XX :
+				     MAX_DEV_DB_ENTRIES;
+
+	cls_sess = ddb_entry->sess;
+	sess = cls_sess->dd_data;
+
+	ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
+	if (ddb_link < max_ddbs)
+		sess->discovery_parent_idx = ddb_link;
+	else
+		sess->discovery_parent_idx = DDB_NO_LINK;
+}
+
 static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha,
 				   struct dev_db_entry *fw_ddb_entry,
 				   int is_reset, uint16_t idx)
@@ -5418,6 +5533,7 @@ static int qla4xxx_sess_conn_setup(struct scsi_qla_host *ha,
 
 	/* Update sess/conn params */
 	qla4xxx_copy_fwddb_param(ha, fw_ddb_entry, cls_sess, cls_conn);
+	qla4xxx_update_sess_disc_idx(ha, ddb_entry, fw_ddb_entry);
 
 	if (is_reset == RESET_ADAPTER) {
 		iscsi_block_session(cls_sess);
@@ -5434,17 +5550,43 @@ exit_setup:
 	return ret;
 }
 
+static void qla4xxx_update_fw_ddb_link(struct scsi_qla_host *ha,
+				       struct list_head *list_ddb,
+				       struct dev_db_entry *fw_ddb_entry)
+{
+	struct qla_ddb_index  *ddb_idx, *ddb_idx_tmp;
+	uint16_t ddb_link;
+
+	ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
+
+	list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, list_ddb, list) {
+		if (ddb_idx->fw_ddb_idx == ddb_link) {
+			DEBUG2(ql4_printk(KERN_INFO, ha,
+					  "Updating NT parent idx from [%d] to [%d]\n",
+					  ddb_link, ddb_idx->flash_ddb_idx));
+			fw_ddb_entry->ddb_link =
+					    cpu_to_le16(ddb_idx->flash_ddb_idx);
+			return;
+		}
+	}
+}
+
 static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
-				  struct list_head *list_nt, int is_reset)
+				  struct list_head *list_nt,
+				  struct list_head *list_st,
+				  int is_reset)
 {
 	struct dev_db_entry *fw_ddb_entry;
+	struct ddb_entry *ddb_entry = NULL;
 	dma_addr_t fw_ddb_dma;
 	int max_ddbs;
 	int fw_idx_size;
 	int ret;
 	uint32_t idx = 0, next_idx = 0;
 	uint32_t state = 0, conn_err = 0;
+	uint32_t ddb_idx = -1;
 	uint16_t conn_id = 0;
+	uint16_t ddb_link = -1;
 	struct qla_ddb_index  *nt_ddb_idx;
 
 	fw_ddb_entry = dma_pool_alloc(ha->fw_ddb_dma_pool, GFP_KERNEL,
@@ -5471,12 +5613,18 @@ static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
 		if (strlen((char *) fw_ddb_entry->iscsi_name) == 0)
 			goto continue_next_nt;
 
+		ddb_link = le16_to_cpu(fw_ddb_entry->ddb_link);
+		if (ddb_link < max_ddbs)
+			qla4xxx_update_fw_ddb_link(ha, list_st, fw_ddb_entry);
+
 		if (!(state == DDB_DS_NO_CONNECTION_ACTIVE ||
-		    state == DDB_DS_SESSION_FAILED))
+		    state == DDB_DS_SESSION_FAILED) &&
+		    (is_reset == INIT_ADAPTER))
 			goto continue_next_nt;
 
 		DEBUG2(ql4_printk(KERN_INFO, ha,
 				  "Adding  DDB to session = 0x%x\n", idx));
+
 		if (is_reset == INIT_ADAPTER) {
 			nt_ddb_idx = vmalloc(fw_idx_size);
 			if (!nt_ddb_idx)
@@ -5506,9 +5654,17 @@ static void qla4xxx_build_nt_list(struct scsi_qla_host *ha,
 
 			list_add_tail(&nt_ddb_idx->list, list_nt);
 		} else if (is_reset == RESET_ADAPTER) {
-			if (qla4xxx_is_session_exists(ha, fw_ddb_entry) ==
-								QLA_SUCCESS)
+			ret = qla4xxx_is_session_exists(ha, fw_ddb_entry,
+							&ddb_idx);
+			if (ret == QLA_SUCCESS) {
+				ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
+								       ddb_idx);
+				if (ddb_entry != NULL)
+					qla4xxx_update_sess_disc_idx(ha,
+								     ddb_entry,
+								  fw_ddb_entry);
 				goto continue_next_nt;
+			}
 		}
 
 		ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, is_reset, idx);
@@ -5526,7 +5682,8 @@ exit_nt_list:
 }
 
 static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha,
-				      struct list_head *list_nt)
+				      struct list_head *list_nt,
+				      uint16_t target_id)
 {
 	struct dev_db_entry *fw_ddb_entry;
 	dma_addr_t fw_ddb_dma;
@@ -5571,13 +5728,16 @@ static void qla4xxx_build_new_nt_list(struct scsi_qla_host *ha,
 
 		nt_ddb_idx->fw_ddb_idx = idx;
 
-		ret = qla4xxx_is_session_exists(ha, fw_ddb_entry);
+		ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
 		if (ret == QLA_SUCCESS) {
 			/* free nt_ddb_idx and do not add to list_nt */
 			vfree(nt_ddb_idx);
 			goto continue_next_new_nt;
 		}
 
+		if (target_id < max_ddbs)
+			fw_ddb_entry->ddb_link = cpu_to_le16(target_id);
+
 		list_add_tail(&nt_ddb_idx->list, list_nt);
 
 		ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
@@ -5894,7 +6054,8 @@ exit_ddb_conn_open:
 }
 
 static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha,
-				struct dev_db_entry *fw_ddb_entry)
+				struct dev_db_entry *fw_ddb_entry,
+				uint16_t target_id)
 {
 	struct qla_ddb_index *ddb_idx, *ddb_idx_tmp;
 	struct list_head list_nt;
@@ -5919,7 +6080,7 @@ static int qla4xxx_ddb_login_st(struct scsi_qla_host *ha,
 	if (ret == QLA_ERROR)
 		goto exit_login_st;
 
-	qla4xxx_build_new_nt_list(ha, &list_nt);
+	qla4xxx_build_new_nt_list(ha, &list_nt, target_id);
 
 	list_for_each_entry_safe(ddb_idx, ddb_idx_tmp, &list_nt, list) {
 		list_del_init(&ddb_idx->list);
@@ -5946,7 +6107,7 @@ static int qla4xxx_ddb_login_nt(struct scsi_qla_host *ha,
 {
 	int ret = QLA_ERROR;
 
-	ret = qla4xxx_is_session_exists(ha, fw_ddb_entry);
+	ret = qla4xxx_is_session_exists(ha, fw_ddb_entry, NULL);
 	if (ret != QLA_SUCCESS)
 		ret = qla4xxx_sess_conn_setup(ha, fw_ddb_entry, RESET_ADAPTER,
 					      idx);
@@ -6001,7 +6162,8 @@ static int qla4xxx_sysfs_ddb_login(struct iscsi_bus_flash_session *fnode_sess,
 	fw_ddb_entry->cookie = DDB_VALID_COOKIE;
 
 	if (strlen((char *)fw_ddb_entry->iscsi_name) == 0)
-		ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry);
+		ret = qla4xxx_ddb_login_st(ha, fw_ddb_entry,
+					   fnode_sess->target_id);
 	else
 		ret = qla4xxx_ddb_login_nt(ha, fw_ddb_entry,
 					   fnode_sess->target_id);
@@ -6926,11 +7088,10 @@ void qla4xxx_build_ddb_list(struct scsi_qla_host *ha, int is_reset)
 		schedule_timeout_uninterruptible(HZ / 10);
 	} while (time_after(wtime, jiffies));
 
-	/* Free up the sendtargets list */
-	qla4xxx_free_ddb_list(&list_st);
 
-	qla4xxx_build_nt_list(ha, &list_nt, is_reset);
+	qla4xxx_build_nt_list(ha, &list_nt, &list_st, is_reset);
 
+	qla4xxx_free_ddb_list(&list_st);
 	qla4xxx_free_ddb_list(&list_nt);
 
 	qla4xxx_free_ddb_index(ha);
-- 
cgit 


From 33519aecafc01a48fef6735d55f9879d3c4070cd Mon Sep 17 00:00:00 2001
From: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Date: Tue, 17 Sep 2013 07:54:44 -0400
Subject: [SCSI] qla4xxx: Correct the check for local CHAP entry type

Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/qla4xxx/ql4_mbx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c
index 62d4208af21f..5eef7d1aaa86 100644
--- a/drivers/scsi/qla4xxx/ql4_mbx.c
+++ b/drivers/scsi/qla4xxx/ql4_mbx.c
@@ -1611,7 +1611,7 @@ int qla4xxx_get_uni_chap_at_index(struct scsi_qla_host *ha, char *username,
 		goto exit_unlock_uni_chap;
 	}
 
-	if (!(chap_table->flags & BIT_6)) {
+	if (!(chap_table->flags & BIT_7)) {
 		ql4_printk(KERN_ERR, ha, "Unidirectional entry not set\n");
 		rval = QLA_ERROR;
 		goto exit_unlock_uni_chap;
-- 
cgit 


From 244c079b81c836ee0ed75eedf1e1322e733ea7c8 Mon Sep 17 00:00:00 2001
From: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Date: Tue, 17 Sep 2013 07:54:45 -0400
Subject: [SCSI] qla4xxx: Support setting of local CHAP index for flash target
 entry

Support setting of CHAP_OUT_IDX param for the target entry in flash.
Setting of valid local CHAP index with enable CHAP AUTH for that
flash target entry and disabling CHAP AUTH will invalidate the CHAP
index for the flash target entry.

Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/qla4xxx/ql4_fw.h |  4 ++++
 drivers/scsi/qla4xxx/ql4_os.c | 18 ++++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/drivers/scsi/qla4xxx/ql4_fw.h b/drivers/scsi/qla4xxx/ql4_fw.h
index 51d1a70f8b45..1243e5942b76 100644
--- a/drivers/scsi/qla4xxx/ql4_fw.h
+++ b/drivers/scsi/qla4xxx/ql4_fw.h
@@ -539,6 +539,10 @@ struct qla_flt_region {
 #define ENABLE_INTERNAL_LOOPBACK	0x04
 #define ENABLE_EXTERNAL_LOOPBACK	0x08
 
+/* generic defines to enable/disable params */
+#define QL4_PARAM_DISABLE	0
+#define QL4_PARAM_ENABLE	1
+
 /*************************************************************************/
 
 /* Host Adapter Initialization Control Block (from host) */
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index a8847a31273d..057d06861ad7 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -6684,10 +6684,13 @@ qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
 	struct Scsi_Host *shost = iscsi_flash_session_to_shost(fnode_sess);
 	struct scsi_qla_host *ha = to_qla_host(shost);
 	struct iscsi_flashnode_param_info *fnode_param;
+	struct ql4_chap_table chap_tbl;
 	struct nlattr *attr;
+	uint16_t chap_out_idx = INVALID_ENTRY;
 	int rc = QLA_ERROR;
 	uint32_t rem = len;
 
+	memset((void *)&chap_tbl, 0, sizeof(chap_tbl));
 	nla_for_each_attr(attr, data, len, rem) {
 		fnode_param = nla_data(attr);
 
@@ -6729,6 +6732,10 @@ qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
 			break;
 		case ISCSI_FLASHNODE_CHAP_AUTH_EN:
 			fnode_sess->chap_auth_en = fnode_param->value[0];
+			/* Invalidate chap index if chap auth is disabled */
+			if (!fnode_sess->chap_auth_en)
+				fnode_sess->chap_out_idx = INVALID_ENTRY;
+
 			break;
 		case ISCSI_FLASHNODE_SNACK_REQ_EN:
 			fnode_conn->snack_req_en = fnode_param->value[0];
@@ -6867,6 +6874,17 @@ qla4xxx_sysfs_ddb_set_param(struct iscsi_bus_flash_session *fnode_sess,
 			fnode_conn->exp_statsn =
 						*(uint32_t *)fnode_param->value;
 			break;
+		case ISCSI_FLASHNODE_CHAP_OUT_IDX:
+			chap_out_idx = *(uint16_t *)fnode_param->value;
+			if (!qla4xxx_get_uni_chap_at_index(ha,
+							   chap_tbl.name,
+							   chap_tbl.secret,
+							   chap_out_idx)) {
+				fnode_sess->chap_out_idx = chap_out_idx;
+				/* Enable chap auth if chap index is valid */
+				fnode_sess->chap_auth_en = QL4_PARAM_ENABLE;
+			}
+			break;
 		default:
 			ql4_printk(KERN_ERR, ha,
 				   "%s: No such sysfs attribute\n", __func__);
-- 
cgit 


From 946ac571584d95e4f6ba0978bb84b4920ecba40b Mon Sep 17 00:00:00 2001
From: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Date: Tue, 17 Sep 2013 07:54:46 -0400
Subject: [SCSI] qla4xxx: Populate local CHAP credentials for flash target
 sessions

If any flash target entry is using CHAP authentication then set
CHAP username and password sysfs params for the corresponding
iscsi sessions.

Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/qla4xxx/ql4_os.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 057d06861ad7..45478807dabb 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -2397,6 +2397,7 @@ static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
 	int buflen = 0;
 	struct iscsi_session *sess;
 	struct ddb_entry *ddb_entry;
+	struct ql4_chap_table chap_tbl;
 	struct iscsi_conn *conn;
 	char ip_addr[DDB_IPADDR_LEN];
 	uint16_t options = 0;
@@ -2404,6 +2405,7 @@ static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
 	sess = cls_sess->dd_data;
 	ddb_entry = sess->dd_data;
 	conn = cls_conn->dd_data;
+	memset(&chap_tbl, 0, sizeof(chap_tbl));
 
 	ddb_entry->chap_tbl_idx = le16_to_cpu(fw_ddb_entry->chap_tbl_idx);
 
@@ -2430,6 +2432,19 @@ static void qla4xxx_copy_fwddb_param(struct scsi_qla_host *ha,
 			(char *)fw_ddb_entry->iscsi_name, buflen);
 	iscsi_set_param(cls_conn, ISCSI_PARAM_INITIATOR_NAME,
 			(char *)ha->name_string, buflen);
+
+	if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
+		if (!qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
+						   chap_tbl.secret,
+						   ddb_entry->chap_tbl_idx)) {
+			iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
+					(char *)chap_tbl.name,
+					strlen((char *)chap_tbl.name));
+			iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
+					(char *)chap_tbl.secret,
+					chap_tbl.secret_len);
+		}
+	}
 }
 
 void qla4xxx_update_session_conn_fwddb_param(struct scsi_qla_host *ha,
@@ -5204,6 +5219,7 @@ static void qla4xxx_setup_flash_ddb_entry(struct scsi_qla_host *ha,
 	ddb_entry->ha = ha;
 	ddb_entry->unblock_sess = qla4xxx_unblock_flash_ddb;
 	ddb_entry->ddb_change = qla4xxx_flash_ddb_change;
+	ddb_entry->chap_tbl_idx = INVALID_ENTRY;
 
 	atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
 	atomic_set(&ddb_entry->relogin_timer, 0);
-- 
cgit 


From b1d0b63f99300c0bd8b3fa9c8058fcd9529e294f Mon Sep 17 00:00:00 2001
From: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Date: Tue, 17 Sep 2013 07:54:47 -0400
Subject: [SCSI] qla4xxx: Use offset based on adapter type to set CHAP entry in
 flash

To write a CHAP entry in adapter's flash calculate the offset based
on the type of adapter.

Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/qla4xxx/ql4_mbx.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c
index 5eef7d1aaa86..121be4298d4c 100644
--- a/drivers/scsi/qla4xxx/ql4_mbx.c
+++ b/drivers/scsi/qla4xxx/ql4_mbx.c
@@ -1537,6 +1537,7 @@ static int qla4xxx_set_chap(struct scsi_qla_host *ha, char *username,
 	int rval = QLA_ERROR;
 	uint32_t offset = 0;
 	struct ql4_chap_table *chap_table;
+	uint32_t chap_size = 0;
 	dma_addr_t chap_dma;
 
 	chap_table = dma_pool_alloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
@@ -1554,7 +1555,20 @@ static int qla4xxx_set_chap(struct scsi_qla_host *ha, char *username,
 	strncpy(chap_table->secret, password, MAX_CHAP_SECRET_LEN);
 	strncpy(chap_table->name, username, MAX_CHAP_NAME_LEN);
 	chap_table->cookie = __constant_cpu_to_le16(CHAP_VALID_COOKIE);
-	offset = FLASH_CHAP_OFFSET | (idx * sizeof(struct ql4_chap_table));
+
+	if (is_qla40XX(ha)) {
+		chap_size = MAX_CHAP_ENTRIES_40XX * sizeof(*chap_table);
+		offset = FLASH_CHAP_OFFSET;
+	} else { /* Single region contains CHAP info for both ports which is
+		  * divided into half for each port.
+		  */
+		chap_size = ha->hw.flt_chap_size / 2;
+		offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
+		if (ha->port_num == 1)
+			offset += chap_size;
+	}
+
+	offset += (idx * sizeof(struct ql4_chap_table));
 	rval = qla4xxx_set_flash(ha, chap_dma, offset,
 				sizeof(struct ql4_chap_table),
 				FLASH_OPT_RMW_COMMIT);
-- 
cgit 


From 3af142fea7da55718b733b25be9d54ddb87acfcc Mon Sep 17 00:00:00 2001
From: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Date: Tue, 17 Sep 2013 07:54:48 -0400
Subject: [SCSI] scsi_transport_iscsi: Add support to set CHAP entries

For offload iSCSI like qla4xxx, CHAP entries are stored in adapter's
flash.
This patch adds support to add/update CHAP entries in adapter's flash
using iscsi tools, like Open-iSCSI.

Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/scsi_transport_iscsi.c | 26 ++++++++++++++++++++++++++
 include/scsi/iscsi_if.h             | 17 +++++++++++++++++
 include/scsi/scsi_transport_iscsi.h |  1 +
 3 files changed, 44 insertions(+)

diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index e4a989fa477d..63a6ca49d4e5 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -2744,6 +2744,28 @@ exit_get_chap:
 	return err;
 }
 
+static int iscsi_set_chap(struct iscsi_transport *transport,
+			  struct iscsi_uevent *ev, uint32_t len)
+{
+	char *data = (char *)ev + sizeof(*ev);
+	struct Scsi_Host *shost;
+	int err = 0;
+
+	if (!transport->set_chap)
+		return -ENOSYS;
+
+	shost = scsi_host_lookup(ev->u.set_path.host_no);
+	if (!shost) {
+		pr_err("%s could not find host no %u\n",
+		       __func__, ev->u.set_path.host_no);
+		return -ENODEV;
+	}
+
+	err = transport->set_chap(shost, data, len);
+	scsi_host_put(shost);
+	return err;
+}
+
 static int iscsi_delete_chap(struct iscsi_transport *transport,
 			     struct iscsi_uevent *ev)
 {
@@ -3234,6 +3256,10 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group)
 	case ISCSI_UEVENT_LOGOUT_FLASHNODE_SID:
 		err = iscsi_logout_flashnode_sid(transport, ev);
 		break;
+	case ISCSI_UEVENT_SET_CHAP:
+		err = iscsi_set_chap(transport, ev,
+				     nlmsg_attrlen(nlh, sizeof(*ev)));
+		break;
 	default:
 		err = -ENOSYS;
 		break;
diff --git a/include/scsi/iscsi_if.h b/include/scsi/iscsi_if.h
index 13d81c5c4ebf..5d6ed6cf12cc 100644
--- a/include/scsi/iscsi_if.h
+++ b/include/scsi/iscsi_if.h
@@ -69,6 +69,7 @@ enum iscsi_uevent_e {
 	ISCSI_UEVENT_LOGIN_FLASHNODE	= UEVENT_BASE + 28,
 	ISCSI_UEVENT_LOGOUT_FLASHNODE	= UEVENT_BASE + 29,
 	ISCSI_UEVENT_LOGOUT_FLASHNODE_SID	= UEVENT_BASE + 30,
+	ISCSI_UEVENT_SET_CHAP		= UEVENT_BASE + 31,
 
 	/* up events */
 	ISCSI_KEVENT_RECV_PDU		= KEVENT_BASE + 1,
@@ -309,8 +310,16 @@ enum iscsi_param_type {
 	ISCSI_HOST_PARAM,	/* iscsi_host_param */
 	ISCSI_NET_PARAM,	/* iscsi_net_param */
 	ISCSI_FLASHNODE_PARAM,	/* iscsi_flashnode_param */
+	ISCSI_CHAP_PARAM,	/* iscsi_chap_param */
 };
 
+/* structure for minimalist usecase */
+struct iscsi_param_info {
+	uint32_t len;		/* Actual length of the param value */
+	uint16_t param;		/* iscsi param */
+	uint8_t value[0];	/* length sized value follows */
+} __packed;
+
 struct iscsi_iface_param_info {
 	uint32_t iface_num;	/* iface number, 0 - n */
 	uint32_t len;		/* Actual length of the param */
@@ -739,6 +748,14 @@ enum chap_type_e {
 	CHAP_TYPE_IN,
 };
 
+enum iscsi_chap_param {
+	ISCSI_CHAP_PARAM_INDEX,
+	ISCSI_CHAP_PARAM_CHAP_TYPE,
+	ISCSI_CHAP_PARAM_USERNAME,
+	ISCSI_CHAP_PARAM_PASSWORD,
+	ISCSI_CHAP_PARAM_PASSWORD_LEN
+};
+
 #define ISCSI_CHAP_AUTH_NAME_MAX_LEN	256
 #define ISCSI_CHAP_AUTH_SECRET_MAX_LEN	256
 struct iscsi_chap_rec {
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index d0f1602985e7..fe7c8f3e93f8 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -152,6 +152,7 @@ struct iscsi_transport {
 	int (*get_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx,
 			 uint32_t *num_entries, char *buf);
 	int (*delete_chap) (struct Scsi_Host *shost, uint16_t chap_tbl_idx);
+	int (*set_chap) (struct Scsi_Host *shost, void *data, int len);
 	int (*get_flashnode_param) (struct iscsi_bus_flash_session *fnode_sess,
 				    int param, char *buf);
 	int (*set_flashnode_param) (struct iscsi_bus_flash_session *fnode_sess,
-- 
cgit 


From 26ffd7b45fe91f9051a58c31b98eaf530e0895aa Mon Sep 17 00:00:00 2001
From: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Date: Tue, 17 Sep 2013 07:54:49 -0400
Subject: [SCSI] qla4xxx: Add support to set CHAP entries

Provide support to add/update the CHAP entries in adapter's flash
using iscsi tools, like Open-iSCSI.

Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/qla4xxx/ql4_glbl.h   |   2 +
 drivers/scsi/qla4xxx/ql4_inline.h |  12 +++
 drivers/scsi/qla4xxx/ql4_mbx.c    |  16 +++-
 drivers/scsi/qla4xxx/ql4_os.c     | 197 ++++++++++++++++++++++++++++++++++++++
 4 files changed, 225 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/qla4xxx/ql4_glbl.h b/drivers/scsi/qla4xxx/ql4_glbl.h
index e6f2a2669dbd..5cef2527180a 100644
--- a/drivers/scsi/qla4xxx/ql4_glbl.h
+++ b/drivers/scsi/qla4xxx/ql4_glbl.h
@@ -83,6 +83,8 @@ int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
 		uint8_t outCount, uint32_t *mbx_cmd, uint32_t *mbx_sts);
 int qla4xxx_get_chap_index(struct scsi_qla_host *ha, char *username,
 			   char *password, int bidi, uint16_t *chap_index);
+int qla4xxx_set_chap(struct scsi_qla_host *ha, char *username, char *password,
+		     uint16_t idx, int bidi);
 
 void qla4xxx_queue_iocb(struct scsi_qla_host *ha);
 void qla4xxx_complete_iocb(struct scsi_qla_host *ha);
diff --git a/drivers/scsi/qla4xxx/ql4_inline.h b/drivers/scsi/qla4xxx/ql4_inline.h
index 8503ad643bdd..655b7bb644d9 100644
--- a/drivers/scsi/qla4xxx/ql4_inline.h
+++ b/drivers/scsi/qla4xxx/ql4_inline.h
@@ -82,3 +82,15 @@ qla4xxx_disable_intrs(struct scsi_qla_host *ha)
 	__qla4xxx_disable_intrs(ha);
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 }
+
+static inline int qla4xxx_get_chap_type(struct ql4_chap_table *chap_entry)
+{
+	int type;
+
+	if (chap_entry->flags & BIT_7)
+		type = LOCAL_CHAP;
+	else
+		type = BIDI_CHAP;
+
+	return type;
+}
diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c
index 121be4298d4c..22cbd005bdf4 100644
--- a/drivers/scsi/qla4xxx/ql4_mbx.c
+++ b/drivers/scsi/qla4xxx/ql4_mbx.c
@@ -1530,8 +1530,20 @@ exit_get_chap:
 	return ret;
 }
 
-static int qla4xxx_set_chap(struct scsi_qla_host *ha, char *username,
-			    char *password, uint16_t idx, int bidi)
+/**
+ * qla4xxx_set_chap - Make a chap entry at the given index
+ * @ha: pointer to adapter structure
+ * @username: CHAP username to set
+ * @password: CHAP password to set
+ * @idx: CHAP index at which to make the entry
+ * @bidi: type of chap entry (chap_in or chap_out)
+ *
+ * Create chap entry at the given index with the information provided.
+ *
+ * Note: Caller should acquire the chap lock before getting here.
+ **/
+int qla4xxx_set_chap(struct scsi_qla_host *ha, char *username, char *password,
+		     uint16_t idx, int bidi)
 {
 	int ret = 0;
 	int rval = QLA_ERROR;
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 45478807dabb..933c7668531b 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -149,6 +149,8 @@ static int qla4xxx_send_ping(struct Scsi_Host *shost, uint32_t iface_num,
 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
 				 uint32_t *num_entries, char *buf);
 static int qla4xxx_delete_chap(struct Scsi_Host *shost, uint16_t chap_tbl_idx);
+static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void  *data,
+				  int len);
 
 /*
  * SCSI host template entry points
@@ -252,6 +254,7 @@ static struct iscsi_transport qla4xxx_iscsi_transport = {
 	.send_ping		= qla4xxx_send_ping,
 	.get_chap		= qla4xxx_get_chap_list,
 	.delete_chap		= qla4xxx_delete_chap,
+	.set_chap		= qla4xxx_set_chap_entry,
 	.get_flashnode_param	= qla4xxx_sysfs_ddb_get_param,
 	.set_flashnode_param	= qla4xxx_sysfs_ddb_set_param,
 	.new_flashnode		= qla4xxx_sysfs_ddb_add,
@@ -508,6 +511,95 @@ static umode_t qla4_attr_is_visible(int param_type, int param)
 	return 0;
 }
 
+static int qla4xxx_get_chap_by_index(struct scsi_qla_host *ha,
+				     int16_t chap_index,
+				     struct ql4_chap_table **chap_entry)
+{
+	int rval = QLA_ERROR;
+	int max_chap_entries;
+
+	if (!ha->chap_list) {
+		ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
+		rval = QLA_ERROR;
+		goto exit_get_chap;
+	}
+
+	if (is_qla80XX(ha))
+		max_chap_entries = (ha->hw.flt_chap_size / 2) /
+				   sizeof(struct ql4_chap_table);
+	else
+		max_chap_entries = MAX_CHAP_ENTRIES_40XX;
+
+	if (chap_index > max_chap_entries) {
+		ql4_printk(KERN_ERR, ha, "Invalid Chap index\n");
+		rval = QLA_ERROR;
+		goto exit_get_chap;
+	}
+
+	*chap_entry = (struct ql4_chap_table *)ha->chap_list + chap_index;
+	if ((*chap_entry)->cookie !=
+	     __constant_cpu_to_le16(CHAP_VALID_COOKIE)) {
+		rval = QLA_ERROR;
+		*chap_entry = NULL;
+	} else {
+		rval = QLA_SUCCESS;
+	}
+
+exit_get_chap:
+	return rval;
+}
+
+/**
+ * qla4xxx_find_free_chap_index - Find the first free chap index
+ * @ha: pointer to adapter structure
+ * @chap_index: CHAP index to be returned
+ *
+ * Find the first free chap index available in the chap table
+ *
+ * Note: Caller should acquire the chap lock before getting here.
+ **/
+static int qla4xxx_find_free_chap_index(struct scsi_qla_host *ha,
+					uint16_t *chap_index)
+{
+	int i, rval;
+	int free_index = -1;
+	int max_chap_entries = 0;
+	struct ql4_chap_table *chap_table;
+
+	if (is_qla80XX(ha))
+		max_chap_entries = (ha->hw.flt_chap_size / 2) /
+						sizeof(struct ql4_chap_table);
+	else
+		max_chap_entries = MAX_CHAP_ENTRIES_40XX;
+
+	if (!ha->chap_list) {
+		ql4_printk(KERN_ERR, ha, "CHAP table cache is empty!\n");
+		rval = QLA_ERROR;
+		goto exit_find_chap;
+	}
+
+	for (i = 0; i < max_chap_entries; i++) {
+		chap_table = (struct ql4_chap_table *)ha->chap_list + i;
+
+		if ((chap_table->cookie !=
+		    __constant_cpu_to_le16(CHAP_VALID_COOKIE)) &&
+		   (i > MAX_RESRV_CHAP_IDX)) {
+				free_index = i;
+				break;
+		}
+	}
+
+	if (free_index != -1) {
+		*chap_index = free_index;
+		rval = QLA_SUCCESS;
+	} else {
+		rval = QLA_ERROR;
+	}
+
+exit_find_chap:
+	return rval;
+}
+
 static int qla4xxx_get_chap_list(struct Scsi_Host *shost, uint16_t chap_tbl_idx,
 				  uint32_t *num_entries, char *buf)
 {
@@ -691,6 +783,111 @@ exit_delete_chap:
 	return ret;
 }
 
+/**
+ * qla4xxx_set_chap_entry - Make chap entry with given information
+ * @shost: pointer to host
+ * @data: chap info - credentials, index and type to make chap entry
+ * @len: length of data
+ *
+ * Add or update chap entry with the given information
+ **/
+static int qla4xxx_set_chap_entry(struct Scsi_Host *shost, void *data, int len)
+{
+	struct scsi_qla_host *ha = to_qla_host(shost);
+	struct iscsi_chap_rec chap_rec;
+	struct ql4_chap_table *chap_entry = NULL;
+	struct iscsi_param_info *param_info;
+	struct nlattr *attr;
+	int max_chap_entries = 0;
+	int type;
+	int rem = len;
+	int rc = 0;
+
+	memset(&chap_rec, 0, sizeof(chap_rec));
+
+	nla_for_each_attr(attr, data, len, rem) {
+		param_info = nla_data(attr);
+
+		switch (param_info->param) {
+		case ISCSI_CHAP_PARAM_INDEX:
+			chap_rec.chap_tbl_idx = *(uint16_t *)param_info->value;
+			break;
+		case ISCSI_CHAP_PARAM_CHAP_TYPE:
+			chap_rec.chap_type = param_info->value[0];
+			break;
+		case ISCSI_CHAP_PARAM_USERNAME:
+			memcpy(chap_rec.username, param_info->value,
+			       param_info->len);
+			break;
+		case ISCSI_CHAP_PARAM_PASSWORD:
+			memcpy(chap_rec.password, param_info->value,
+			       param_info->len);
+			break;
+		case ISCSI_CHAP_PARAM_PASSWORD_LEN:
+			chap_rec.password_length = param_info->value[0];
+			break;
+		default:
+			ql4_printk(KERN_ERR, ha,
+				   "%s: No such sysfs attribute\n", __func__);
+			rc = -ENOSYS;
+			goto exit_set_chap;
+		};
+	}
+
+	if (chap_rec.chap_type == CHAP_TYPE_IN)
+		type = BIDI_CHAP;
+	else
+		type = LOCAL_CHAP;
+
+	if (is_qla80XX(ha))
+		max_chap_entries = (ha->hw.flt_chap_size / 2) /
+				   sizeof(struct ql4_chap_table);
+	else
+		max_chap_entries = MAX_CHAP_ENTRIES_40XX;
+
+	mutex_lock(&ha->chap_sem);
+	if (chap_rec.chap_tbl_idx < max_chap_entries) {
+		rc = qla4xxx_get_chap_by_index(ha, chap_rec.chap_tbl_idx,
+					       &chap_entry);
+		if (!rc) {
+			if (!(type == qla4xxx_get_chap_type(chap_entry))) {
+				ql4_printk(KERN_INFO, ha,
+					   "Type mismatch for CHAP entry %d\n",
+					   chap_rec.chap_tbl_idx);
+				rc = -EINVAL;
+				goto exit_unlock_chap;
+			}
+
+			/* If chap index is in use then don't modify it */
+			rc = qla4xxx_is_chap_active(shost,
+						    chap_rec.chap_tbl_idx);
+			if (rc) {
+				ql4_printk(KERN_INFO, ha,
+					   "CHAP entry %d is in use\n",
+					   chap_rec.chap_tbl_idx);
+				rc = -EBUSY;
+				goto exit_unlock_chap;
+			}
+		}
+	} else {
+		rc = qla4xxx_find_free_chap_index(ha, &chap_rec.chap_tbl_idx);
+		if (rc) {
+			ql4_printk(KERN_INFO, ha, "CHAP entry not available\n");
+			rc = -EBUSY;
+			goto exit_unlock_chap;
+		}
+	}
+
+	rc = qla4xxx_set_chap(ha, chap_rec.username, chap_rec.password,
+			      chap_rec.chap_tbl_idx, type);
+
+exit_unlock_chap:
+	mutex_unlock(&ha->chap_sem);
+
+exit_set_chap:
+	return rc;
+}
+
 static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
 				   enum iscsi_param_type param_type,
 				   int param, char *buf)
-- 
cgit 


From 97c2730cb8f039705b17ef12b5a5ed9af6eeb460 Mon Sep 17 00:00:00 2001
From: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Date: Tue, 17 Sep 2013 07:54:50 -0400
Subject: [SCSI] qla4xxx: Add support to get CHAP details for flash target
 session

Add support to get local CHAP - index, username and password,
sysfs params of iscsi session corresponding to flash target entry.

Signed-off-by: Adheer Chandravanshi <adheer.chandravanshi@qlogic.com>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/qla4xxx/ql4_os.c | 41 ++++++++++++++++++++++++++++++++++++++---
 1 file changed, 38 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 933c7668531b..6dc3e99b7f9c 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -1652,9 +1652,12 @@ static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
 	struct iscsi_session *sess = cls_sess->dd_data;
 	struct ddb_entry *ddb_entry = sess->dd_data;
 	struct scsi_qla_host *ha = ddb_entry->ha;
+	struct iscsi_cls_conn *cls_conn = ddb_entry->conn;
+	struct ql4_chap_table chap_tbl;
 	int rval, len;
 	uint16_t idx;
 
+	memset(&chap_tbl, 0, sizeof(chap_tbl));
 	switch (param) {
 	case ISCSI_PARAM_CHAP_IN_IDX:
 		rval = qla4xxx_get_chap_index(ha, sess->username_in,
@@ -1666,14 +1669,46 @@ static int qla4xxx_session_get_param(struct iscsi_cls_session *cls_sess,
 			len = sprintf(buf, "%hu\n", idx);
 		break;
 	case ISCSI_PARAM_CHAP_OUT_IDX:
-		rval = qla4xxx_get_chap_index(ha, sess->username,
-					      sess->password, LOCAL_CHAP,
-					      &idx);
+		if (ddb_entry->ddb_type == FLASH_DDB) {
+			if (ddb_entry->chap_tbl_idx != INVALID_ENTRY) {
+				idx = ddb_entry->chap_tbl_idx;
+				rval = QLA_SUCCESS;
+			} else {
+				rval = QLA_ERROR;
+			}
+		} else {
+			rval = qla4xxx_get_chap_index(ha, sess->username,
+						      sess->password,
+						      LOCAL_CHAP, &idx);
+		}
 		if (rval)
 			len = sprintf(buf, "\n");
 		else
 			len = sprintf(buf, "%hu\n", idx);
 		break;
+	case ISCSI_PARAM_USERNAME:
+	case ISCSI_PARAM_PASSWORD:
+		/* First, populate session username and password for FLASH DDB,
+		 * if not already done. This happens when session login fails
+		 * for a FLASH DDB.
+		 */
+		if (ddb_entry->ddb_type == FLASH_DDB &&
+		    ddb_entry->chap_tbl_idx != INVALID_ENTRY &&
+		    !sess->username && !sess->password) {
+			idx = ddb_entry->chap_tbl_idx;
+			rval = qla4xxx_get_uni_chap_at_index(ha, chap_tbl.name,
+							    chap_tbl.secret,
+							    idx);
+			if (!rval) {
+				iscsi_set_param(cls_conn, ISCSI_PARAM_USERNAME,
+						(char *)chap_tbl.name,
+						strlen((char *)chap_tbl.name));
+				iscsi_set_param(cls_conn, ISCSI_PARAM_PASSWORD,
+						(char *)chap_tbl.secret,
+						chap_tbl.secret_len);
+			}
+		}
+		/* allow fall-through */
 	default:
 		return iscsi_session_get_param(cls_sess, param, buf);
 	}
-- 
cgit 


From 21837896097a6d141c7ac581500ee648c5b4bb89 Mon Sep 17 00:00:00 2001
From: Eddie Wai <eddie.wai@broadcom.com>
Date: Tue, 17 Sep 2013 22:33:10 -0700
Subject: [SCSI] bnx2fc: Fixed a SCSI CMD cmpl race condition between ABTS and
 CLEANUP

In the case when a SCSI_CMD times out, bnx2fc will initiate the sending of the
ABTS.  However, if the SCSI layer's SCSI command timer also times out, it'll
instantiate a task abort of the same xid.

The race condition this patch tries to fix is as follows:

SCSI_CMD timeout (20s)
thread 1                   thread 2
send ABTS
rx ABTS cmpl
                           task abort_eh
                           explicit LOGO since ABTS was engaged
                           CLEANUP cmpl
SCSI_CMD cmpl (ABTS cmpl)
instantiate RRQ
wait 10s
attempt to send RRQ (because of LOGO, it wouldn't continue)

Note that there is no call to scsi_done for this SCSI_CMD cmpletion
in this path.

The patch changes the path of execution to call scsi_done immediately
instead of instantiating the RRQ.

Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/bnx2fc/bnx2fc_io.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c
index 575142e92d9c..ed880891cb7c 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_io.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_io.c
@@ -1246,6 +1246,12 @@ int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd)
 			kref_put(&io_req->refcount,
 				 bnx2fc_cmd_release); /* drop timer hold */
 		rc = bnx2fc_expl_logo(lport, io_req);
+		/* This only occurs when an task abort was requested while ABTS
+		   is in progress.  Setting the IO_CLEANUP flag will skip the
+		   RRQ process in the case when the fw generated SCSI_CMD cmpl
+		   was a result from the ABTS request rather than the CLEANUP
+		   request */
+		set_bit(BNX2FC_FLAG_IO_CLEANUP,	&io_req->req_flags);
 		goto out;
 	}
 
-- 
cgit 


From 0680810c11fe16e7f8797908c8cb94e6a4933cbd Mon Sep 17 00:00:00 2001
From: Eddie Wai <eddie.wai@broadcom.com>
Date: Wed, 25 Sep 2013 22:01:20 -0700
Subject: [SCSI] BNX2FC: hung task timeout warning observed when rmmod bnx2x
 with active FCoE targets

[v2] - removed the interface->enabled flag setting which prevented the
       fcoe ctlr link from being brought back up after a MTU change

A rtnl_lock deadlock was observed from the rmmod thread where it
tries to unregister the fcoe_ctlr device.  This unregistration
triggered a flush of the sysfs queue of the associated ctlr and led to
a call to the set_fcoe_ctlr_enabled routine.  This will eventually propagate
down to call the bnx2fc_disable routine and contented for the rtnl_lock
in the same context.

This patch creates a subset of the bnx2fc_enable/disable routine which
removes the unnecesary rtnl_lock and the bnx2fc_dev_lock acquisition from
the set_fcoe_ctlr_enabled path.

 kernel: INFO: task rmmod:7874 blocked for more than 120 seconds.
 kernel:      Tainted: G        W  ---------------    2.6.32-415.0.1.el6.x86_64 #1
 kernel: "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
 kernel: rmmod         D 000000000000000f     0  7874   6518 0x00000080
 kernel: ffff88022158f7d8 0000000000000086 0000000000000000 0000000000000000
 kernel: ffff88023fe72600 ffff88043c74d410 ffff88043c74d400 ffff88043c74d000
 kernel: ffff88021ecbe5f8 ffff88022158ffd8 000000000000fbc8 ffff88021ecbe5f8
 kernel: Call Trace:
 kernel: [<ffffffff81525985>] schedule_timeout+0x215/0x2e0
 kernel: [<ffffffff810680c0>] ? pick_next_task_fair+0xd0/0x130
 kernel: [<ffffffff81524858>] ? schedule+0x178/0x3b2
 kernel: [<ffffffff81525603>] wait_for_common+0x123/0x180
 kernel: [<ffffffff81066b40>] ? default_wake_function+0x0/0x20
 kernel: [<ffffffff811a486e>] ? ifind_fast+0x5e/0xb0
 kernel: [<ffffffff8152571d>] wait_for_completion+0x1d/0x20
 kernel: [<ffffffff81203868>] sysfs_addrm_finish+0x228/0x270
 kernel: [<ffffffff812014ab>] sysfs_hash_and_remove+0x5b/0x90
 kernel: [<ffffffff812056af>] sysfs_remove_group+0x5f/0x100
 kernel: [<ffffffff81367e8b>] device_remove_groups+0x3b/0x60
 kernel: [<ffffffff8136811d>] device_remove_attrs+0x3d/0x90
 kernel: [<ffffffff81368295>] device_del+0x125/0x1e0
 kernel: [<ffffffff81368372>] device_unregister+0x22/0x60
 kernel: [<ffffffffa038ead2>] fcoe_ctlr_device_delete+0xe2/0xf4 [libfcoe]
 kernel: [<ffffffffa03c43cb>] bnx2fc_interface_release+0x5b/0x90 [bnx2fc]
 kernel: [<ffffffffa03c4370>] ? bnx2fc_interface_release+0x0/0x90 [bnx2fc]
 kernel: [<ffffffff812835e7>] kref_put+0x37/0x70
 kernel: [<ffffffffa03c4192>] __bnx2fc_destroy+0x72/0xa0 [bnx2fc]
 kernel: [<ffffffffa03c5265>] bnx2fc_ulp_exit+0xf5/0x160 [bnx2fc]    <- got bnx2fc_dev_lock mutex_lock
 kernel: [<ffffffffa03b03c6>] cnic_ulp_exit+0xb6/0xc0 [cnic]
 kernel: [<ffffffffa03b5418>] cnic_netdev_event+0x368/0x370 [cnic]
 kernel: [<ffffffffa038c56c>] ? fcoe_del_netdev_mapping+0x8c/0xa0 [libfcoe]
 kernel: [<ffffffff8152a6e5>] notifier_call_chain+0x55/0x80
 kernel: [<ffffffff810a0a46>] raw_notifier_call_chain+0x16/0x20
 kernel: [<ffffffff81459beb>] call_netdevice_notifiers+0x1b/0x20
 kernel: [<ffffffff8145ab34>] rollback_registered_many+0x154/0x280
 kernel: [<ffffffff8145ad08>] rollback_registered+0x38/0x50
 kernel: [<ffffffff8145ad78>] unregister_netdevice_queue+0x58/0xa0
 kernel: [<ffffffff8145add0>] unregister_netdevice+0x10/0x20
 kernel: [<ffffffff8145adfe>] unregister_netdev+0x1e/0x30                  <- got rtnl_lock!!!!!!!!!
 kernel: [<ffffffffa0122278>] __bnx2x_remove+0x48/0x270 [bnx2x] <- got & rel rtnl_lock
 kernel: [<ffffffffa0122554>] bnx2x_remove_one+0x44/0x80 [bnx2x]
 kernel: [<ffffffff812a3af7>] pci_device_remove+0x37/0x70
 kernel: [<ffffffff8136b2ef>] __device_release_driver+0x6f/0xe0
 kernel: [<ffffffff8136b428>] driver_detach+0xc8/0xd0
 kernel: [<ffffffff8136a22e>] bus_remove_driver+0x8e/0x110
 kernel: [<ffffffff8136bc12>] driver_unregister+0x62/0xa0
 kernel: [<ffffffff812a3e04>] pci_unregister_driver+0x44/0xb0
 kernel: [<ffffffffa0191954>] bnx2x_cleanup+0x18/0x73 [bnx2x]
 kernel: [<ffffffff810b8be4>] sys_delete_module+0x194/0x260
 kernel: [<ffffffff810e1347>] ? audit_syscall_entry+0x1d7/0x200
 kernel: [<ffffffff8100b072>] system_call_fastpath+0x16/0x1b

Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 59 +++++++++++++++++++++++++++++----------
 1 file changed, 44 insertions(+), 15 deletions(-)

diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index 69ac55495c1d..7a25766b0fcd 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -2004,6 +2004,24 @@ static void bnx2fc_ulp_init(struct cnic_dev *dev)
 		set_bit(BNX2FC_CNIC_REGISTERED, &hba->reg_with_cnic);
 }
 
+/* Assumes rtnl_lock and the bnx2fc_dev_lock are already taken */
+static int __bnx2fc_disable(struct fcoe_ctlr *ctlr)
+{
+	struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr);
+
+	if (interface->enabled == true) {
+		if (!ctlr->lp) {
+			pr_err(PFX "__bnx2fc_disable: lport not found\n");
+			return -ENODEV;
+		} else {
+			interface->enabled = false;
+			fcoe_ctlr_link_down(ctlr);
+			fcoe_clean_pending_queue(ctlr->lp);
+		}
+	}
+	return 0;
+}
+
 /**
  * Deperecated: Use bnx2fc_enabled()
  */
@@ -2018,20 +2036,34 @@ static int bnx2fc_disable(struct net_device *netdev)
 
 	interface = bnx2fc_interface_lookup(netdev);
 	ctlr = bnx2fc_to_ctlr(interface);
-	if (!interface || !ctlr->lp) {
+
+	if (!interface) {
 		rc = -ENODEV;
-		printk(KERN_ERR PFX "bnx2fc_disable: interface or lport not found\n");
+		pr_err(PFX "bnx2fc_disable: interface not found\n");
 	} else {
-		interface->enabled = false;
-		fcoe_ctlr_link_down(ctlr);
-		fcoe_clean_pending_queue(ctlr->lp);
+		rc = __bnx2fc_disable(ctlr);
 	}
-
 	mutex_unlock(&bnx2fc_dev_lock);
 	rtnl_unlock();
 	return rc;
 }
 
+static int __bnx2fc_enable(struct fcoe_ctlr *ctlr)
+{
+	struct bnx2fc_interface *interface = fcoe_ctlr_priv(ctlr);
+
+	if (interface->enabled == false) {
+		if (!ctlr->lp) {
+			pr_err(PFX "__bnx2fc_enable: lport not found\n");
+			return -ENODEV;
+		} else if (!bnx2fc_link_ok(ctlr->lp)) {
+			fcoe_ctlr_link_up(ctlr);
+			interface->enabled = true;
+		}
+	}
+	return 0;
+}
+
 /**
  * Deprecated: Use bnx2fc_enabled()
  */
@@ -2046,12 +2078,11 @@ static int bnx2fc_enable(struct net_device *netdev)
 
 	interface = bnx2fc_interface_lookup(netdev);
 	ctlr = bnx2fc_to_ctlr(interface);
-	if (!interface || !ctlr->lp) {
+	if (!interface) {
 		rc = -ENODEV;
-		printk(KERN_ERR PFX "bnx2fc_enable: interface or lport not found\n");
-	} else if (!bnx2fc_link_ok(ctlr->lp)) {
-		fcoe_ctlr_link_up(ctlr);
-		interface->enabled = true;
+		pr_err(PFX "bnx2fc_enable: interface not found\n");
+	} else {
+		rc = __bnx2fc_enable(ctlr);
 	}
 
 	mutex_unlock(&bnx2fc_dev_lock);
@@ -2072,14 +2103,12 @@ static int bnx2fc_enable(struct net_device *netdev)
 static int bnx2fc_ctlr_enabled(struct fcoe_ctlr_device *cdev)
 {
 	struct fcoe_ctlr *ctlr = fcoe_ctlr_device_priv(cdev);
-	struct fc_lport *lport = ctlr->lp;
-	struct net_device *netdev = bnx2fc_netdev(lport);
 
 	switch (cdev->enabled) {
 	case FCOE_CTLR_ENABLED:
-		return bnx2fc_enable(netdev);
+		return __bnx2fc_enable(ctlr);
 	case FCOE_CTLR_DISABLED:
-		return bnx2fc_disable(netdev);
+		return __bnx2fc_disable(ctlr);
 	case FCOE_CTLR_UNUSED:
 	default:
 		return -ENOTSUPP;
-- 
cgit 


From aa106202e4485e25e96c5ced29238dabc07bccd1 Mon Sep 17 00:00:00 2001
From: Eddie Wai <eddie.wai@broadcom.com>
Date: Tue, 17 Sep 2013 22:33:12 -0700
Subject: [SCSI] bnx2fc: Bump version from 1.0.14 to 2.4.1

Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/bnx2fc/bnx2fc.h      | 2 +-
 drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h
index d7ca9305ff45..1ebf3fb683e6 100644
--- a/drivers/scsi/bnx2fc/bnx2fc.h
+++ b/drivers/scsi/bnx2fc/bnx2fc.h
@@ -64,7 +64,7 @@
 #include "bnx2fc_constants.h"
 
 #define BNX2FC_NAME		"bnx2fc"
-#define BNX2FC_VERSION		"1.0.14"
+#define BNX2FC_VERSION		"2.4.1"
 
 #define PFX			"bnx2fc: "
 
diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
index 7a25766b0fcd..3c204ad1d5b9 100644
--- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
+++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c
@@ -22,7 +22,7 @@ DEFINE_PER_CPU(struct bnx2fc_percpu_s, bnx2fc_percpu);
 
 #define DRV_MODULE_NAME		"bnx2fc"
 #define DRV_MODULE_VERSION	BNX2FC_VERSION
-#define DRV_MODULE_RELDATE	"Mar 08, 2013"
+#define DRV_MODULE_RELDATE	"Sep 17, 2013"
 
 
 static char version[] =
-- 
cgit 


From f69098c54a4ee8d151505d6b6b03d86ff373b1f6 Mon Sep 17 00:00:00 2001
From: Eddie Wai <eddie.wai@broadcom.com>
Date: Tue, 17 Sep 2013 22:33:13 -0700
Subject: [SCSI] MAINTAINER: Updated maintainer info for bnx2fc

Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 MAINTAINERS | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 8a0cbf3cf2c8..407d5f3febfd 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1857,7 +1857,7 @@ S:	Supported
 F:	drivers/net/wireless/brcm80211/
 
 BROADCOM BNX2FC 10 GIGABIT FCOE DRIVER
-M:	Bhanu Prakash Gollapudi <bprakash@broadcom.com>
+M:	Eddie Wai <eddie.wai@broadcom.com>
 L:	linux-scsi@vger.kernel.org
 S:	Supported
 F:	drivers/scsi/bnx2fc/
-- 
cgit 


From 15a90fe05c91d15ac46b68e3644e5f9f1bb51917 Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:38 -0700
Subject: [SCSI] be2iscsi: Fix Template HDR IOCTL

Allocating memory in the Host which will be used by the
TOE functionality during Session Offload. This fix will
allow performance improvement as adapter memory contention
will be reduced.

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_cmds.c | 45 +++++++++++++++++++++++++++++++++++++++++
 drivers/scsi/be2iscsi/be_cmds.h | 28 +++++++++++++++++++++++++
 drivers/scsi/be2iscsi/be_main.c | 41 +++++++++++++++++++++++++++++++++++++
 drivers/scsi/be2iscsi/be_main.h |  2 ++
 4 files changed, 116 insertions(+)

diff --git a/drivers/scsi/be2iscsi/be_cmds.c b/drivers/scsi/be2iscsi/be_cmds.c
index e66aa7c11a8a..bb70dcb493c6 100644
--- a/drivers/scsi/be2iscsi/be_cmds.c
+++ b/drivers/scsi/be2iscsi/be_cmds.c
@@ -1104,6 +1104,51 @@ int be_cmd_wrbq_create(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem,
 	return status;
 }
 
+int be_cmd_iscsi_post_template_hdr(struct be_ctrl_info *ctrl,
+				    struct be_dma_mem *q_mem)
+{
+	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+	struct be_post_template_pages_req *req = embedded_payload(wrb);
+	int status;
+
+	spin_lock(&ctrl->mbox_lock);
+
+	memset(wrb, 0, sizeof(*wrb));
+	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+			   OPCODE_COMMON_ADD_TEMPLATE_HEADER_BUFFERS,
+			   sizeof(*req));
+
+	req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size);
+	req->type = BEISCSI_TEMPLATE_HDR_TYPE_ISCSI;
+	be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
+
+	status = be_mbox_notify(ctrl);
+	spin_unlock(&ctrl->mbox_lock);
+	return status;
+}
+
+int be_cmd_iscsi_remove_template_hdr(struct be_ctrl_info *ctrl)
+{
+	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
+	struct be_remove_template_pages_req *req = embedded_payload(wrb);
+	int status;
+
+	spin_lock(&ctrl->mbox_lock);
+
+	memset(wrb, 0, sizeof(*wrb));
+	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
+	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
+			   OPCODE_COMMON_REMOVE_TEMPLATE_HEADER_BUFFERS,
+			   sizeof(*req));
+
+	req->type = BEISCSI_TEMPLATE_HDR_TYPE_ISCSI;
+
+	status = be_mbox_notify(ctrl);
+	spin_unlock(&ctrl->mbox_lock);
+	return status;
+}
+
 int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl,
 				struct be_dma_mem *q_mem,
 				u32 page_offset, u32 num_pages)
diff --git a/drivers/scsi/be2iscsi/be_cmds.h b/drivers/scsi/be2iscsi/be_cmds.h
index 99073086dfe0..89c407377b77 100644
--- a/drivers/scsi/be2iscsi/be_cmds.h
+++ b/drivers/scsi/be2iscsi/be_cmds.h
@@ -162,6 +162,8 @@ struct be_mcc_mailbox {
 #define OPCODE_COMMON_CQ_CREATE				12
 #define OPCODE_COMMON_EQ_CREATE				13
 #define OPCODE_COMMON_MCC_CREATE			21
+#define OPCODE_COMMON_ADD_TEMPLATE_HEADER_BUFFERS	24
+#define OPCODE_COMMON_REMOVE_TEMPLATE_HEADER_BUFFERS	25
 #define OPCODE_COMMON_GET_CNTL_ATTRIBUTES		32
 #define OPCODE_COMMON_GET_FW_VERSION			35
 #define OPCODE_COMMON_MODIFY_EQ_DELAY			41
@@ -217,6 +219,10 @@ struct phys_addr {
 	u32 hi;
 };
 
+struct virt_addr {
+	u32 lo;
+	u32 hi;
+};
 /**************************
  * BE Command definitions *
  **************************/
@@ -724,6 +730,11 @@ int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
 				    struct be_queue_info *dq, int length,
 				    int entry_size);
 
+int be_cmd_iscsi_post_template_hdr(struct be_ctrl_info *ctrl,
+				    struct be_dma_mem *q_mem);
+
+int be_cmd_iscsi_remove_template_hdr(struct be_ctrl_info *ctrl);
+
 int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl,
 				struct be_dma_mem *q_mem, u32 page_offset,
 				u32 num_pages);
@@ -787,6 +798,23 @@ struct be_defq_create_resp {
 	u16 rsvd0;
 } __packed;
 
+struct be_post_template_pages_req {
+	struct be_cmd_req_hdr hdr;
+	u16 num_pages;
+#define BEISCSI_TEMPLATE_HDR_TYPE_ISCSI	0x1
+	u16 type;
+	struct phys_addr scratch_pa;
+	struct virt_addr scratch_va;
+	struct virt_addr pages_va;
+	struct phys_addr pages[16];
+} __packed;
+
+struct be_remove_template_pages_req {
+	struct be_cmd_req_hdr hdr;
+	u16 type;
+	u16 rsvd0;
+} __packed;
+
 struct be_post_sgl_pages_req {
 	struct be_cmd_req_hdr hdr;
 	u16 num_pages;
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index a1f5ac7a9806..0abed0a954eb 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -2517,6 +2517,8 @@ static void beiscsi_find_mem_req(struct beiscsi_hba *phba)
 		phba->params.icds_per_ctrl;
 	phba->mem_req[HWI_MEM_SGE] = sizeof(struct iscsi_sge) *
 		phba->params.num_sge_per_io * phba->params.icds_per_ctrl;
+	phba->mem_req[HWI_MEM_TEMPLATE_HDR] = phba->params.cxns_per_ctrl *
+					      BEISCSI_TEMPLATE_HDR_PER_CXN_SIZE;
 
 	phba->mem_req[HWI_MEM_ASYNC_HEADER_BUF] =
 		num_async_pdu_buf_pages * PAGE_SIZE;
@@ -3258,6 +3260,36 @@ beiscsi_create_def_data(struct beiscsi_hba *phba,
 	return 0;
 }
 
+
+static int
+beiscsi_post_template_hdr(struct beiscsi_hba *phba)
+{
+	struct be_mem_descriptor *mem_descr;
+	struct mem_array *pm_arr;
+	struct be_dma_mem sgl;
+	int status, i;
+
+	mem_descr = phba->init_mem;
+	mem_descr += HWI_MEM_TEMPLATE_HDR;
+	pm_arr = mem_descr->mem_array;
+
+	for (i = 0; i < mem_descr->num_elements; i++) {
+		hwi_build_be_sgl_arr(phba, pm_arr, &sgl);
+		status = be_cmd_iscsi_post_template_hdr(&phba->ctrl, &sgl);
+
+		if (status != 0) {
+			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+				    "BM_%d : Post Template HDR Failed\n");
+			return status;
+		}
+	}
+
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+		    "BM_%d : Template HDR Pages Posted\n");
+
+	return 0;
+}
+
 static int
 beiscsi_post_pages(struct beiscsi_hba *phba)
 {
@@ -3437,6 +3469,9 @@ static void hwi_cleanup(struct beiscsi_hba *phba)
 
 	phwi_ctrlr = phba->phwi_ctrlr;
 	phwi_context = phwi_ctrlr->phwi_ctxt;
+
+	be_cmd_iscsi_remove_template_hdr(ctrl);
+
 	for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
 		q = &phwi_context->be_wrbq[i];
 		if (q->created)
@@ -3611,6 +3646,12 @@ static int hwi_init_port(struct beiscsi_hba *phba)
 		goto error;
 	}
 
+	status = beiscsi_post_template_hdr(phba);
+	if (status != 0) {
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : Template HDR Posting for CXN Failed\n");
+	}
+
 	status = beiscsi_create_wrb_rings(phba,	phwi_context, phwi_ctrlr);
 	if (status != 0) {
 		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
index 2c06ef3c02ac..3e452578a8a9 100644
--- a/drivers/scsi/be2iscsi/be_main.h
+++ b/drivers/scsi/be2iscsi/be_main.h
@@ -74,6 +74,7 @@
 
 #define BEISCSI_CMD_PER_LUN	128	/* scsi_host->cmd_per_lun */
 #define BEISCSI_MAX_SECTORS	2048	/* scsi_host->max_sectors */
+#define BEISCSI_TEMPLATE_HDR_PER_CXN_SIZE 128 /* Template size per cxn */
 
 #define BEISCSI_MAX_CMD_LEN	16	/* scsi_host->max_cmd_len */
 #define BEISCSI_NUM_MAX_LUN	256	/* scsi_host->max_lun */
@@ -165,6 +166,7 @@ enum be_mem_enum {
 	HWI_MEM_WRBH,
 	HWI_MEM_SGLH,
 	HWI_MEM_SGE,
+	HWI_MEM_TEMPLATE_HDR,
 	HWI_MEM_ASYNC_HEADER_BUF,	/* 5 */
 	HWI_MEM_ASYNC_DATA_BUF,
 	HWI_MEM_ASYNC_HEADER_RING,
-- 
cgit 


From e074d20f9bce54f64dcb43eb2772fde4a4d68171 Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:39 -0700
Subject: [SCSI] be2iscsi: Fix the MCCQ count leakage

When MBX CMD is posted in MCCQ and if command times out,during
mccq resource cleanup for the timed out command  mccq->count
was not decremented. The led to BUG_ON being hit.

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_cmds.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/be2iscsi/be_cmds.c b/drivers/scsi/be2iscsi/be_cmds.c
index bb70dcb493c6..f7788e59c3f2 100644
--- a/drivers/scsi/be2iscsi/be_cmds.c
+++ b/drivers/scsi/be2iscsi/be_cmds.c
@@ -174,6 +174,10 @@ int beiscsi_mccq_compl(struct beiscsi_hba *phba,
 			    BEISCSI_LOG_CONFIG,
 			    "BC_%d : MBX Cmd Completion timed out\n");
 		rc = -EAGAIN;
+
+		/* decrement the mccq used count */
+		atomic_dec(&phba->ctrl.mcc_obj.q.used);
+
 		goto release_mcc_tag;
 	} else
 		rc = 0;
@@ -699,7 +703,7 @@ struct be_mcc_wrb *wrb_from_mccq(struct beiscsi_hba *phba)
 	struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q;
 	struct be_mcc_wrb *wrb;
 
-	BUG_ON(atomic_read(&mccq->used) >= mccq->len);
+	WARN_ON(atomic_read(&mccq->used) >= mccq->len);
 	wrb = queue_head_node(mccq);
 	memset(wrb, 0, sizeof(*wrb));
 	wrb->tag0 = (mccq->head & 0x000000FF) << 16;
-- 
cgit 


From 6c83185a72e5a00a927c324e72f7341590a30f2b Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:40 -0700
Subject: [SCSI] be2iscsi: Fix repeated issue of MAC ADDR get IOCTL

Storing MAC ADDR of each function in it's priv structure to
avoid issuing MAC_ADDR get IOCTL. Based on a flag set/unset
it's decided if MAC_ADDR is stored in priv structure or IOCTL
needs to be issued.

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_iscsi.c | 3 ++-
 drivers/scsi/be2iscsi/be_main.c  | 1 +
 drivers/scsi/be2iscsi/be_main.h  | 1 +
 3 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c
index ef36be003f67..2496ea7dab78 100644
--- a/drivers/scsi/be2iscsi/be_iscsi.c
+++ b/drivers/scsi/be2iscsi/be_iscsi.c
@@ -840,7 +840,7 @@ int beiscsi_get_macaddr(char *buf, struct beiscsi_hba *phba)
 	struct be_cmd_get_nic_conf_resp resp;
 	int rc;
 
-	if (strlen(phba->mac_address))
+	if (phba->mac_addr_set)
 		return sysfs_format_mac(buf, phba->mac_address, ETH_ALEN);
 
 	memset(&resp, 0, sizeof(resp));
@@ -848,6 +848,7 @@ int beiscsi_get_macaddr(char *buf, struct beiscsi_hba *phba)
 	if (rc)
 		return rc;
 
+	phba->mac_addr_set = true;
 	memcpy(phba->mac_address, resp.mac_address, ETH_ALEN);
 	return sysfs_format_mac(buf, phba->mac_address, ETH_ALEN);
 }
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 0abed0a954eb..5ba575f0051b 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -4948,6 +4948,7 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev,
 	beiscsi_hba_attrs_init(phba);
 
 	phba->fw_timeout = false;
+	phba->mac_addr_set = false;
 
 
 	switch (pcidev->device) {
diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
index 3e452578a8a9..5165515652bf 100644
--- a/drivers/scsi/be2iscsi/be_main.h
+++ b/drivers/scsi/be2iscsi/be_main.h
@@ -348,6 +348,7 @@ struct beiscsi_hba {
 	bool ue_detected;
 	struct delayed_work beiscsi_hw_check_task;
 
+	bool mac_addr_set;
 	u8 mac_address[ETH_ALEN];
 	char fw_ver_str[BEISCSI_VER_STRLEN];
 	char wq_name[20];
-- 
cgit 


From 7331613ec0cd1847a67eb268a7b9675f79388350 Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:41 -0700
Subject: [SCSI] be2iscsi: Fix negotiated parameters upload to FW

- Removed the check of MaxXmitDSL == 0 as this is not a possible
  case.
- Update connection offload data structure for SKH-R adapters.

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_iscsi.c |  7 +++++--
 drivers/scsi/be2iscsi/be_main.h  | 29 ++++++++++++++++-------------
 drivers/scsi/be2iscsi/be_mgmt.c  |  8 +++-----
 3 files changed, 24 insertions(+), 20 deletions(-)

diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c
index 2496ea7dab78..f698f7aa7ef9 100644
--- a/drivers/scsi/be2iscsi/be_iscsi.c
+++ b/drivers/scsi/be2iscsi/be_iscsi.c
@@ -672,8 +672,7 @@ int beiscsi_set_param(struct iscsi_cls_conn *cls_conn,
 			session->max_burst = 262144;
 		break;
 	case ISCSI_PARAM_MAX_XMIT_DLENGTH:
-		if ((conn->max_xmit_dlength > 65536) ||
-		    (conn->max_xmit_dlength == 0))
+		if (conn->max_xmit_dlength > 65536)
 			conn->max_xmit_dlength = 65536;
 	default:
 		return 0;
@@ -924,6 +923,10 @@ static void  beiscsi_set_params_for_offld(struct beiscsi_conn *beiscsi_conn,
 		      session->max_r2t);
 	AMAP_SET_BITS(struct amap_beiscsi_offload_params, exp_statsn, params,
 		      (conn->exp_statsn - 1));
+	AMAP_SET_BITS(struct amap_beiscsi_offload_params,
+		      max_recv_data_segment_length, params,
+		      conn->max_recv_dlength);
+
 }
 
 /**
diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
index 5165515652bf..ec75c53de7b6 100644
--- a/drivers/scsi/be2iscsi/be_main.h
+++ b/drivers/scsi/be2iscsi/be_main.h
@@ -477,7 +477,7 @@ struct amap_iscsi_sge {
 };
 
 struct beiscsi_offload_params {
-	u32 dw[5];
+	u32 dw[6];
 };
 
 #define OFFLD_PARAMS_ERL	0x00000003
@@ -507,6 +507,7 @@ struct amap_beiscsi_offload_params {
 	u8 max_r2t[16];
 	u8 pad[8];
 	u8 exp_statsn[32];
+	u8 max_recv_data_segment_length[32];
 };
 
 /* void hwi_complete_drvr_msgs(struct beiscsi_conn *beiscsi_conn,
@@ -888,30 +889,32 @@ struct amap_iscsi_target_context_update_wrb_v2 {
 	u8 first_burst_length[24]; /* DWORD 3 */
 	u8 rsvd3[8]; /* DOWRD 3 */
 	u8 max_r2t[16]; /* DWORD 4 */
-	u8 rsvd4[10];   /* DWORD 4 */
+	u8 rsvd4;       /* DWORD 4 */
 	u8 hde;         /* DWORD 4 */
 	u8 dde;         /* DWORD 4 */
 	u8 erl[2];      /* DWORD 4 */
+	u8 rsvd5[6];    /* DWORD 4 */
 	u8 imd;         /* DWORD 4 */
 	u8 ir2t;        /* DWORD 4 */
+	u8 rsvd6[3];    /* DWORD 4 */
 	u8 stat_sn[32];     /* DWORD 5 */
-	u8 rsvd5[32];   /* DWORD 6 */
-	u8 rsvd6[32];   /* DWORD 7 */
+	u8 rsvd7[32];   /* DWORD 6 */
+	u8 rsvd8[32];   /* DWORD 7 */
 	u8 max_recv_dataseg_len[24];    /* DWORD 8 */
-	u8 rsvd7[8]; /* DWORD 8 */
-	u8 rsvd8[32];   /* DWORD 9 */
-	u8 rsvd9[32];   /* DWORD 10 */
+	u8 rsvd9[8]; /* DWORD 8 */
+	u8 rsvd10[32];   /* DWORD 9 */
+	u8 rsvd11[32];   /* DWORD 10 */
 	u8 max_cxns[16]; /* DWORD 11 */
-	u8 rsvd10[11]; /* DWORD  11*/
+	u8 rsvd12[11]; /* DWORD  11*/
 	u8 invld; /* DWORD 11 */
-	u8 rsvd11;/* DWORD 11*/
+	u8 rsvd13;/* DWORD 11*/
 	u8 dmsg; /* DWORD 11 */
 	u8 data_seq_inorder; /* DWORD 11 */
 	u8 pdu_seq_inorder; /* DWORD 11 */
-	u8 rsvd12[32]; /*DWORD 12 */
-	u8 rsvd13[32]; /* DWORD 13 */
-	u8 rsvd14[32]; /* DWORD 14 */
-	u8 rsvd15[32]; /* DWORD 15 */
+	u8 rsvd14[32]; /*DWORD 12 */
+	u8 rsvd15[32]; /* DWORD 13 */
+	u8 rsvd16[32]; /* DWORD 14 */
+	u8 rsvd17[32]; /* DWORD 15 */
 } __packed;
 
 
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index 245a9595a93a..2efad040b6ae 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -1411,10 +1411,6 @@ void beiscsi_offload_cxn_v2(struct beiscsi_offload_params *params,
 
 	memset(pwrb, 0, sizeof(*pwrb));
 
-	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb,
-		      max_burst_length, pwrb, params->dw[offsetof
-		      (struct amap_beiscsi_offload_params,
-		      max_burst_length) / 32]);
 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
 		      max_burst_length, pwrb, params->dw[offsetof
 		      (struct amap_beiscsi_offload_params,
@@ -1436,7 +1432,9 @@ void beiscsi_offload_cxn_v2(struct beiscsi_offload_params *params,
 		      params->dw[offsetof(struct amap_beiscsi_offload_params,
 		      first_burst_length) / 32]);
 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
-		      max_recv_dataseg_len, pwrb, BEISCSI_MAX_RECV_DATASEG_LEN);
+		      max_recv_dataseg_len, pwrb,
+		      params->dw[offsetof(struct amap_beiscsi_offload_params,
+		      max_recv_data_segment_length) / 32]);
 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2,
 		      max_cxns, pwrb, BEISCSI_MAX_CXNS);
 	AMAP_SET_BITS(struct amap_iscsi_target_context_update_wrb_v2, erl, pwrb,
-- 
cgit 


From 8f09a3b97804924bf7787161e4ad5c273d12b11e Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:42 -0700
Subject: [SCSI] be2iscsi: Fix locking mechanism in Unsol Path

The default pdu is a common resource and needs to be protected
while manipulating it.

Signed-off-by: Minh Tran <minhduc.tran@emulex.com>
Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_main.c | 7 +++++++
 drivers/scsi/be2iscsi/be_main.h | 1 +
 2 files changed, 8 insertions(+)

diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 5ba575f0051b..991858262b72 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -2072,8 +2072,10 @@ static unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq)
 				    "BM_%d : Received %s[%d] on CID : %d\n",
 				    cqe_desc[code], code, cid);
 
+			spin_lock_bh(&phba->async_pdu_lock);
 			hwi_process_default_pdu_ring(beiscsi_conn, phba,
 					     (struct i_t_dpdu_cqe *)sol);
+			spin_unlock_bh(&phba->async_pdu_lock);
 			break;
 		case UNSOL_DATA_NOTIFY:
 			beiscsi_log(phba, KERN_INFO,
@@ -2081,8 +2083,10 @@ static unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq)
 				    "BM_%d : Received %s[%d] on CID : %d\n",
 				    cqe_desc[code], code, cid);
 
+			spin_lock_bh(&phba->async_pdu_lock);
 			hwi_process_default_pdu_ring(beiscsi_conn, phba,
 					     (struct i_t_dpdu_cqe *)sol);
+			spin_unlock_bh(&phba->async_pdu_lock);
 			break;
 		case CXN_INVALIDATE_INDEX_NOTIFY:
 		case CMD_INVALIDATED_NOTIFY:
@@ -2110,8 +2114,10 @@ static unsigned int beiscsi_process_cq(struct be_eq_obj *pbe_eq)
 				    BEISCSI_LOG_IO | BEISCSI_LOG_CONFIG,
 				    "BM_%d :  Dropping %s[%d] on DPDU ring on CID : %d\n",
 				    cqe_desc[code], code, cid);
+			spin_lock_bh(&phba->async_pdu_lock);
 			hwi_flush_default_pdu_buffer(phba, beiscsi_conn,
 					     (struct i_t_dpdu_cqe *) sol);
+			spin_unlock_bh(&phba->async_pdu_lock);
 			break;
 		case CXN_KILLED_PDU_SIZE_EXCEEDS_DSL:
 		case CXN_KILLED_BURST_LEN_MISMATCH:
@@ -5010,6 +5016,7 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev,
 	spin_lock_init(&phba->io_sgl_lock);
 	spin_lock_init(&phba->mgmt_sgl_lock);
 	spin_lock_init(&phba->isr_lock);
+	spin_lock_init(&phba->async_pdu_lock);
 	ret = mgmt_get_fw_config(&phba->ctrl, phba);
 	if (ret != 0) {
 		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
index ec75c53de7b6..6ac4f2f5bbaa 100644
--- a/drivers/scsi/be2iscsi/be_main.h
+++ b/drivers/scsi/be2iscsi/be_main.h
@@ -305,6 +305,7 @@ struct beiscsi_hba {
 	spinlock_t io_sgl_lock;
 	spinlock_t mgmt_sgl_lock;
 	spinlock_t isr_lock;
+	spinlock_t async_pdu_lock;
 	unsigned int age;
 	unsigned short avlbl_cids;
 	unsigned short cid_alloc;
-- 
cgit 


From 92665a6628902246368494972a38d84b1b091cb8 Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:43 -0700
Subject: [SCSI] be2iscsi: Fix soft lock up issue during UE or if FW taking
 time to respond

The timeout set in MBX_CMD is 100sec and the ready bit checking in BMBX
mode is done for 4sec. After 4sec the task is scheduled out for 5 secs
to avoid kernel soft lockup stack trace. The loop of 4sec ready bit check
and then schedule out is done until the following conditon occur
- The Ready Bit is Set
- The timeout set in MBX_CMD expires

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be.h      |  2 +-
 drivers/scsi/be2iscsi/be_cmds.c | 48 ++++++++++++++++++++++++++---------------
 drivers/scsi/be2iscsi/be_main.c |  5 ++---
 3 files changed, 34 insertions(+), 21 deletions(-)

diff --git a/drivers/scsi/be2iscsi/be.h b/drivers/scsi/be2iscsi/be.h
index 777e7c0bbb4b..2e28f6c419fe 100644
--- a/drivers/scsi/be2iscsi/be.h
+++ b/drivers/scsi/be2iscsi/be.h
@@ -128,7 +128,7 @@ struct be_ctrl_info {
 
 #define PAGE_SHIFT_4K 12
 #define PAGE_SIZE_4K (1 << PAGE_SHIFT_4K)
-#define mcc_timeout		120000 /* 5s timeout */
+#define mcc_timeout		120000 /* 12s timeout */
 
 /* Returns number of pages spanned by the data starting at the given addr */
 #define PAGES_4K_SPANNED(_address, size)				\
diff --git a/drivers/scsi/be2iscsi/be_cmds.c b/drivers/scsi/be2iscsi/be_cmds.c
index f7788e59c3f2..df03067abded 100644
--- a/drivers/scsi/be2iscsi/be_cmds.c
+++ b/drivers/scsi/be2iscsi/be_cmds.c
@@ -490,33 +490,47 @@ int be_mcc_notify_wait(struct beiscsi_hba *phba)
  **/
 static int be_mbox_db_ready_wait(struct be_ctrl_info *ctrl)
 {
+#define BEISCSI_MBX_RDY_BIT_TIMEOUT	4000	/* 4sec */
 	void __iomem *db = ctrl->db + MPU_MAILBOX_DB_OFFSET;
 	struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
-	uint32_t wait = 0;
+	unsigned long timeout;
+	bool read_flag = false;
+	int ret = 0, i;
 	u32 ready;
+	DECLARE_WAIT_QUEUE_HEAD_ONSTACK(rdybit_check_q);
 
-	do {
+	if (beiscsi_error(phba))
+		return -EIO;
 
-		if (beiscsi_error(phba))
-			return -EIO;
+	timeout = jiffies + (HZ * 110);
 
-		ready = ioread32(db) & MPU_MAILBOX_DB_RDY_MASK;
-		if (ready)
-			break;
+	do {
+		for (i = 0; i < BEISCSI_MBX_RDY_BIT_TIMEOUT; i++) {
+			ready = ioread32(db) & MPU_MAILBOX_DB_RDY_MASK;
+			if (ready) {
+				read_flag = true;
+				break;
+			}
+			mdelay(1);
+		}
 
-		if (wait > BEISCSI_HOST_MBX_TIMEOUT) {
-			beiscsi_log(phba, KERN_ERR,
-				    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
-				    "BC_%d : FW Timed Out\n");
+		if (!read_flag) {
+			wait_event_timeout(rdybit_check_q,
+					  (read_flag != true),
+					   HZ * 5);
+		}
+	} while ((time_before(jiffies, timeout)) && !read_flag);
+
+	if (!read_flag) {
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
+			    "BC_%d : FW Timed Out\n");
 			phba->fw_timeout = true;
 			beiscsi_ue_detect(phba);
-			return -EBUSY;
-		}
+			ret = -EBUSY;
+	}
 
-		mdelay(1);
-		wait++;
-	} while (true);
-	return 0;
+	return ret;
 }
 
 /*
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 991858262b72..6ad36af4654a 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -5002,14 +5002,13 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev,
 	ret = beiscsi_cmd_reset_function(phba);
 	if (ret) {
 		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
-			    "BM_%d : Reset Failed. Aborting Crashdump\n");
+			    "BM_%d : Reset Failed\n");
 		goto hba_free;
 	}
 	ret = be_chk_reset_complete(phba);
 	if (ret) {
 		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
-			    "BM_%d : Failed to get out of reset."
-			    "Aborting Crashdump\n");
+			    "BM_%d : Failed to get out of reset.\n");
 		goto hba_free;
 	}
 
-- 
cgit 


From 843ae752eea769899d3c2008d7f2b2e094ddb6cc Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:44 -0700
Subject: [SCSI] be2iscsi: Config parameters update for Dual Chute Support

On the adapter iSCSI protocol can be loaded on either one or both
the CHUTE.Check on which CHUTE iSCSI Protocol is loaded and get
configuration parameters based on which driver initization is done.

For BE-X family iSCSI protocol is loaded only on single chute.

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_cmds.h | 14 ++++++++
 drivers/scsi/be2iscsi/be_main.c | 63 ++++++++++++++++++++-------------
 drivers/scsi/be2iscsi/be_main.h | 27 +++++++++------
 drivers/scsi/be2iscsi/be_mgmt.c | 77 ++++++++++++++++++++++++++++++++---------
 4 files changed, 128 insertions(+), 53 deletions(-)

diff --git a/drivers/scsi/be2iscsi/be_cmds.h b/drivers/scsi/be2iscsi/be_cmds.h
index 89c407377b77..b812e380ef46 100644
--- a/drivers/scsi/be2iscsi/be_cmds.h
+++ b/drivers/scsi/be2iscsi/be_cmds.h
@@ -40,6 +40,7 @@ struct be_mcc_wrb {
 	u32 tag1;		/* dword 3 */
 	u32 rsvd;		/* dword 4 */
 	union {
+#define EMBED_MBX_MAX_PAYLOAD_SIZE  220
 		u8 embedded_payload[236];	/* used by embedded cmds */
 		struct be_sge sgl[19];	/* used by non-embedded cmds */
 	} payload;
@@ -1030,6 +1031,7 @@ union tcp_upload_params {
 } __packed;
 
 struct be_ulp_fw_cfg {
+#define BEISCSI_ULP_ISCSI_INI_MODE	0x10
 	u32 ulp_mode;
 	u32 etx_base;
 	u32 etx_count;
@@ -1045,14 +1047,26 @@ struct be_ulp_fw_cfg {
 	u32 icd_count;
 };
 
+struct be_ulp_chain_icd {
+	u32 chain_base;
+	u32 chain_count;
+};
+
 struct be_fw_cfg {
 	struct be_cmd_req_hdr hdr;
 	u32 be_config_number;
 	u32 asic_revision;
 	u32 phys_port;
+#define BEISCSI_FUNC_ISCSI_INI_MODE	0x10
+#define BEISCSI_FUNC_DUA_MODE	0x800
 	u32 function_mode;
 	struct be_ulp_fw_cfg ulp[2];
 	u32 function_caps;
+	u32 cqid_base;
+	u32 cqid_count;
+	u32 eqid_base;
+	u32 eqid_count;
+	struct be_ulp_chain_icd chain_icd[2];
 } __packed;
 
 struct be_cmd_get_all_if_id_req {
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 6ad36af4654a..2bea0762c14f 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -699,30 +699,38 @@ static int be_ctrl_init(struct beiscsi_hba *phba, struct pci_dev *pdev)
 	return status;
 }
 
+/**
+ * beiscsi_get_params()- Set the config paramters
+ * @phba: ptr  device priv structure
+ **/
 static void beiscsi_get_params(struct beiscsi_hba *phba)
 {
-	phba->params.ios_per_ctrl = (phba->fw_config.iscsi_icd_count
-				    - (phba->fw_config.iscsi_cid_count
-				    + BE2_TMFS
-				    + BE2_NOPOUT_REQ));
-	phba->params.cxns_per_ctrl = phba->fw_config.iscsi_cid_count;
-	phba->params.asyncpdus_per_ctrl = phba->fw_config.iscsi_cid_count;
-	phba->params.icds_per_ctrl = phba->fw_config.iscsi_icd_count;
+	uint32_t total_cid_count = 0;
+	uint32_t total_icd_count = 0;
+	uint8_t ulp_num = 0;
+
+	total_cid_count = BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP0) +
+			  BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP1);
+
+	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
+		if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
+			total_icd_count = phba->fw_config.
+					  iscsi_icd_count[ulp_num];
+			break;
+		}
+
+	phba->params.ios_per_ctrl = (total_icd_count -
+				    (total_cid_count +
+				     BE2_TMFS + BE2_NOPOUT_REQ));
+	phba->params.cxns_per_ctrl = total_cid_count;
+	phba->params.asyncpdus_per_ctrl = total_cid_count;
+	phba->params.icds_per_ctrl = total_icd_count;
 	phba->params.num_sge_per_io = BE2_SGE;
 	phba->params.defpdu_hdr_sz = BE2_DEFPDU_HDR_SZ;
 	phba->params.defpdu_data_sz = BE2_DEFPDU_DATA_SZ;
 	phba->params.eq_timer = 64;
-	phba->params.num_eq_entries =
-	    (((BE2_CMDS_PER_CXN * 2 + phba->fw_config.iscsi_cid_count * 2
-				    + BE2_TMFS) / 512) + 1) * 512;
-	phba->params.num_eq_entries = (phba->params.num_eq_entries < 1024)
-				? 1024 : phba->params.num_eq_entries;
-	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
-		    "BM_%d : phba->params.num_eq_entries=%d\n",
-		    phba->params.num_eq_entries);
-	phba->params.num_cq_entries =
-	    (((BE2_CMDS_PER_CXN * 2 +  phba->fw_config.iscsi_cid_count * 2
-				    + BE2_TMFS) / 512) + 1) * 512;
+	phba->params.num_eq_entries = 1024;
+	phba->params.num_cq_entries = 1024;
 	phba->params.wrbs_per_cxn = 256;
 }
 
@@ -2482,6 +2490,10 @@ static void hwi_write_buffer(struct iscsi_wrb *pwrb, struct iscsi_task *task)
 	AMAP_SET_BITS(struct amap_iscsi_sge, last_sge, psgl, 1);
 }
 
+/**
+ * beiscsi_find_mem_req()- Find mem needed
+ * @phba: ptr to HBA struct
+ **/
 static void beiscsi_find_mem_req(struct beiscsi_hba *phba)
 {
 	unsigned int num_cq_pages, num_async_pdu_buf_pages;
@@ -2705,7 +2717,7 @@ static int beiscsi_init_wrb_handle(struct beiscsi_hba *phba)
 	/* Allocate memory for WRBQ */
 	phwi_ctxt = phwi_ctrlr->phwi_ctxt;
 	phwi_ctxt->be_wrbq = kzalloc(sizeof(struct be_queue_info) *
-				     phba->fw_config.iscsi_cid_count,
+				     phba->params.cxns_per_ctrl,
 				     GFP_KERNEL);
 	if (!phwi_ctxt->be_wrbq) {
 		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
@@ -2804,7 +2816,7 @@ static int hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
 	memset(pasync_ctx, 0, sizeof(*pasync_ctx));
 
 	pasync_ctx->async_entry = kzalloc(sizeof(struct hwi_async_entry) *
-					  phba->fw_config.iscsi_cid_count,
+					  phba->params.cxns_per_ctrl,
 					  GFP_KERNEL);
 	if (!pasync_ctx->async_entry) {
 		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
@@ -3303,14 +3315,14 @@ beiscsi_post_pages(struct beiscsi_hba *phba)
 	struct mem_array *pm_arr;
 	unsigned int page_offset, i;
 	struct be_dma_mem sgl;
-	int status;
+	int status, ulp_num = 0;
 
 	mem_descr = phba->init_mem;
 	mem_descr += HWI_MEM_SGE;
 	pm_arr = mem_descr->mem_array;
 
 	page_offset = (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io *
-			phba->fw_config.iscsi_icd_start) / PAGE_SIZE;
+			phba->fw_config.iscsi_icd_start[ulp_num]) / PAGE_SIZE;
 	for (i = 0; i < mem_descr->num_elements; i++) {
 		hwi_build_be_sgl_arr(phba, pm_arr, &sgl);
 		status = be_cmd_iscsi_post_sgl_pages(&phba->ctrl, &sgl,
@@ -3767,7 +3779,7 @@ static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba)
 	struct be_mem_descriptor *mem_descr_sglh, *mem_descr_sg;
 	struct sgl_handle *psgl_handle;
 	struct iscsi_sge *pfrag;
-	unsigned int arr_index, i, idx;
+	unsigned int arr_index, i, idx, ulp_num = 0;
 
 	phba->io_sgl_hndl_avbl = 0;
 	phba->eh_sgl_hndl_avbl = 0;
@@ -3853,7 +3865,8 @@ static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba)
 			AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, pfrag, 0);
 			pfrag += phba->params.num_sge_per_io;
 			psgl_handle->sgl_index =
-				phba->fw_config.iscsi_icd_start + arr_index++;
+				phba->fw_config.iscsi_icd_start[ulp_num] +
+				arr_index++;
 		}
 		idx++;
 	}
@@ -5022,7 +5035,7 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev,
 			    "BM_%d : Error getting fw config\n");
 		goto free_port;
 	}
-	phba->shost->max_id = phba->fw_config.iscsi_cid_count;
+	phba->shost->max_id = phba->params.cxns_per_ctrl;
 	beiscsi_get_params(phba);
 	phba->shost->can_queue = phba->params.ios_per_ctrl;
 	ret = beiscsi_init_port(phba);
diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
index 6ac4f2f5bbaa..39bc1857adc5 100644
--- a/drivers/scsi/be2iscsi/be_main.h
+++ b/drivers/scsi/be2iscsi/be_main.h
@@ -271,6 +271,12 @@ struct invalidate_command_table {
 #define chip_be2(phba)      (phba->generation == BE_GEN2)
 #define chip_be3_r(phba)    (phba->generation == BE_GEN3)
 #define is_chip_be2_be3r(phba) (chip_be3_r(phba) || (chip_be2(phba)))
+
+#define BEISCSI_ULP0    0
+#define BEISCSI_ULP1    1
+#define BEISCSI_ULP_COUNT   2
+#define BEISCSI_ULP0_LOADED 0x01
+#define BEISCSI_ULP1_LOADED 0x02
 struct beiscsi_hba {
 	struct hba_parameters params;
 	struct hwi_controller *phwi_ctrlr;
@@ -328,20 +334,19 @@ struct beiscsi_hba {
 		 * group together since they are used most frequently
 		 * for cid to cri conversion
 		 */
-		unsigned int iscsi_cid_start;
 		unsigned int phys_port;
+		unsigned int iscsi_cid_start[BEISCSI_ULP_COUNT];
+#define BEISCSI_GET_CID_COUNT(phba, ulp_num) \
+			      (phba->fw_config.iscsi_cid_count[ulp_num])
+		unsigned int iscsi_cid_count[BEISCSI_ULP_COUNT];
+		unsigned int iscsi_icd_count[BEISCSI_ULP_COUNT];
+		unsigned int iscsi_icd_start[BEISCSI_ULP_COUNT];
+		unsigned int iscsi_chain_start[BEISCSI_ULP_COUNT];
+		unsigned int iscsi_chain_count[BEISCSI_ULP_COUNT];
 
-		unsigned int isr_offset;
-		unsigned int iscsi_icd_start;
-		unsigned int iscsi_cid_count;
-		unsigned int iscsi_icd_count;
-		unsigned int pci_function;
-
-		unsigned short cid_alloc;
-		unsigned short cid_free;
-		unsigned short avlbl_cids;
 		unsigned short iscsi_features;
-		spinlock_t cid_lock;
+		uint16_t dual_ulp_aware;
+		unsigned long ulp_supported;
 	} fw_config;
 
 	unsigned int state;
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index 2efad040b6ae..c46a60b883eb 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -278,6 +278,18 @@ unsigned int mgmt_get_session_info(struct beiscsi_hba *phba,
 	return tag;
 }
 
+/**
+ * mgmt_get_fw_config()- Get the FW config for the function
+ * @ctrl: ptr to Ctrl Info
+ * @phba: ptr to the dev priv structure
+ *
+ * Get the FW config and resources available for the function.
+ * The resources are created based on the count received here.
+ *
+ * return
+ *	Success: 0
+ *	Failure: Non-Zero Value
+ **/
 int mgmt_get_fw_config(struct be_ctrl_info *ctrl,
 				struct beiscsi_hba *phba)
 {
@@ -291,31 +303,62 @@ int mgmt_get_fw_config(struct be_ctrl_info *ctrl,
 	be_wrb_hdr_prepare(wrb, sizeof(*req), true, 0);
 
 	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_COMMON,
-			   OPCODE_COMMON_QUERY_FIRMWARE_CONFIG, sizeof(*req));
+			   OPCODE_COMMON_QUERY_FIRMWARE_CONFIG,
+			   EMBED_MBX_MAX_PAYLOAD_SIZE);
 	status = be_mbox_notify(ctrl);
 	if (!status) {
+		uint8_t ulp_num = 0;
 		struct be_fw_cfg *pfw_cfg;
 		pfw_cfg = req;
+
+		for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
+			if (pfw_cfg->ulp[ulp_num].ulp_mode &
+			    BEISCSI_ULP_ISCSI_INI_MODE)
+				set_bit(ulp_num,
+					&phba->fw_config.ulp_supported);
+
 		phba->fw_config.phys_port = pfw_cfg->phys_port;
-		phba->fw_config.iscsi_icd_start =
-					pfw_cfg->ulp[0].icd_base;
-		phba->fw_config.iscsi_icd_count =
-					pfw_cfg->ulp[0].icd_count;
-		phba->fw_config.iscsi_cid_start =
-					pfw_cfg->ulp[0].sq_base;
-		phba->fw_config.iscsi_cid_count =
-					pfw_cfg->ulp[0].sq_count;
-		if (phba->fw_config.iscsi_cid_count > (BE2_MAX_SESSIONS / 2)) {
-			beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
-				    "BG_%d : FW reported MAX CXNS as %d\t"
-				    "Max Supported = %d.\n",
-				    phba->fw_config.iscsi_cid_count,
-				    BE2_MAX_SESSIONS);
-			phba->fw_config.iscsi_cid_count = BE2_MAX_SESSIONS / 2;
+		for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+			if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
+
+				phba->fw_config.iscsi_cid_start[ulp_num] =
+					pfw_cfg->ulp[ulp_num].sq_base;
+				phba->fw_config.iscsi_cid_count[ulp_num] =
+					pfw_cfg->ulp[ulp_num].sq_count;
+
+				phba->fw_config.iscsi_icd_start[ulp_num] =
+					pfw_cfg->ulp[ulp_num].icd_base;
+				phba->fw_config.iscsi_icd_count[ulp_num] =
+					pfw_cfg->ulp[ulp_num].icd_count;
+
+				phba->fw_config.iscsi_chain_start[ulp_num] =
+					pfw_cfg->chain_icd[ulp_num].chain_base;
+				phba->fw_config.iscsi_chain_count[ulp_num] =
+					pfw_cfg->chain_icd[ulp_num].chain_count;
+
+				beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+					    "BG_%d : Function loaded on ULP : %d\n"
+					    "\tiscsi_cid_count : %d\n"
+					    "\t iscsi_icd_count : %d\n",
+					    ulp_num,
+					    phba->fw_config.
+					    iscsi_cid_count[ulp_num],
+					    phba->fw_config.
+					    iscsi_icd_count[ulp_num]);
+			}
 		}
+
+		phba->fw_config.dual_ulp_aware = (pfw_cfg->function_mode &
+						  BEISCSI_FUNC_DUA_MODE);
+
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+			    "BG_%d : DUA Mode : 0x%x\n",
+			    phba->fw_config.dual_ulp_aware);
+
 	} else {
-		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
 			    "BG_%d : Failed in mgmt_get_fw_config\n");
+		status = -EINVAL;
 	}
 
 	spin_unlock(&ctrl->mbox_lock);
-- 
cgit 


From 8a86e8336f37fde1d62bd731e82ca5b22a678926 Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:45 -0700
Subject: [SCSI] be2iscsi: Fix changes in ASYNC Path for SKH-R adapter

DEF_Q[HDR/DATA] is created on the chute on which iSCSI Protocol is loaded.
When a connection is offloaded, the DEF_Q HDR/Data ID needs to be passed.
FW posts ASYNC message received from target on the passed DEF_Q. Connection
can be offloaded on any of the chute so DEF_Q is created on each Chute.

Change in the ASYNC path initialization based on the configuration parameters
returned for each chute.

For BE-X family iSCSI protocol is loaded only on single chute.

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_cmds.c |  42 ++-
 drivers/scsi/be2iscsi/be_cmds.h |  13 +-
 drivers/scsi/be2iscsi/be_main.c | 686 ++++++++++++++++++++++++----------------
 drivers/scsi/be2iscsi/be_main.h |  58 ++--
 drivers/scsi/be2iscsi/be_mgmt.c |  10 +-
 5 files changed, 516 insertions(+), 293 deletions(-)

diff --git a/drivers/scsi/be2iscsi/be_cmds.c b/drivers/scsi/be2iscsi/be_cmds.c
index df03067abded..b77a327ecea9 100644
--- a/drivers/scsi/be2iscsi/be_cmds.c
+++ b/drivers/scsi/be2iscsi/be_cmds.c
@@ -1027,10 +1027,29 @@ int beiscsi_cmd_q_destroy(struct be_ctrl_info *ctrl, struct be_queue_info *q,
 	return status;
 }
 
+/**
+ * be_cmd_create_default_pdu_queue()- Create DEFQ for the adapter
+ * @ctrl: ptr to ctrl_info
+ * @cq: Completion Queue
+ * @dq: Default Queue
+ * @lenght: ring size
+ * @entry_size: size of each entry in DEFQ
+ * @is_header: Header or Data DEFQ
+ * @ulp_num: Bind to which ULP
+ *
+ * Create HDR/Data DEFQ for the passed ULP. Unsol PDU are posted
+ * on this queue by the FW
+ *
+ * return
+ *	Success: 0
+ *	Failure: Non-Zero Value
+ *
+ **/
 int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
 				    struct be_queue_info *cq,
 				    struct be_queue_info *dq, int length,
-				    int entry_size)
+				    int entry_size, uint8_t is_header,
+				    uint8_t ulp_num)
 {
 	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
 	struct be_defq_create_req *req = embedded_payload(wrb);
@@ -1048,6 +1067,11 @@ int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
 			   OPCODE_COMMON_ISCSI_DEFQ_CREATE, sizeof(*req));
 
 	req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size);
+	if (phba->fw_config.dual_ulp_aware) {
+		req->ulp_num = ulp_num;
+		req->dua_feature |= (1 << BEISCSI_DUAL_ULP_AWARE_BIT);
+		req->dua_feature |= (1 << BEISCSI_BIND_Q_TO_ULP_BIT);
+	}
 
 	if (is_chip_be2_be3r(phba)) {
 		AMAP_SET_BITS(struct amap_be_default_pdu_context,
@@ -1085,10 +1109,26 @@ int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
 
 	status = be_mbox_notify(ctrl);
 	if (!status) {
+		struct be_ring *defq_ring;
 		struct be_defq_create_resp *resp = embedded_payload(wrb);
 
 		dq->id = le16_to_cpu(resp->id);
 		dq->created = true;
+		if (is_header)
+			defq_ring = &phba->phwi_ctrlr->default_pdu_hdr[ulp_num];
+		else
+			defq_ring = &phba->phwi_ctrlr->
+				    default_pdu_data[ulp_num];
+
+		defq_ring->id = dq->id;
+
+		if (!phba->fw_config.dual_ulp_aware) {
+			defq_ring->ulp_num = BEISCSI_ULP0;
+			defq_ring->doorbell_offset = DB_RXULP0_OFFSET;
+		} else {
+			defq_ring->ulp_num = resp->ulp_num;
+			defq_ring->doorbell_offset = resp->doorbell_offset;
+		}
 	}
 	spin_unlock(&ctrl->mbox_lock);
 
diff --git a/drivers/scsi/be2iscsi/be_cmds.h b/drivers/scsi/be2iscsi/be_cmds.h
index b812e380ef46..40bc2855ba0a 100644
--- a/drivers/scsi/be2iscsi/be_cmds.h
+++ b/drivers/scsi/be2iscsi/be_cmds.h
@@ -729,7 +729,8 @@ int be_mbox_notify(struct be_ctrl_info *ctrl);
 int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
 				    struct be_queue_info *cq,
 				    struct be_queue_info *dq, int length,
-				    int entry_size);
+				    int entry_size, uint8_t is_header,
+				    uint8_t ulp_num);
 
 int be_cmd_iscsi_post_template_hdr(struct be_ctrl_info *ctrl,
 				    struct be_dma_mem *q_mem);
@@ -788,7 +789,9 @@ struct be_defq_create_req {
 	struct be_cmd_req_hdr hdr;
 	u16 num_pages;
 	u8 ulp_num;
-	u8 rsvd0;
+#define BEISCSI_DUAL_ULP_AWARE_BIT	0	/* Byte 3 - Bit 0 */
+#define BEISCSI_BIND_Q_TO_ULP_BIT	1	/* Byte 3 - Bit 1 */
+	u8 dua_feature;
 	struct be_default_pdu_context context;
 	struct phys_addr pages[8];
 } __packed;
@@ -796,7 +799,11 @@ struct be_defq_create_req {
 struct be_defq_create_resp {
 	struct be_cmd_req_hdr hdr;
 	u16 id;
-	u16 rsvd0;
+	u8 rsvd0;
+	u8 ulp_num;
+	u32 doorbell_offset;
+	u16 register_set;
+	u16 doorbell_format;
 } __packed;
 
 struct be_post_template_pages_req {
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 2bea0762c14f..779be2b3ede8 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -1621,8 +1621,8 @@ hwi_get_async_handle(struct beiscsi_hba *phba,
 
 	WARN_ON(!pasync_handle);
 
-	pasync_handle->cri =
-			BE_GET_CRI_FROM_CID(beiscsi_conn->beiscsi_conn_cid);
+	pasync_handle->cri = BE_GET_ASYNC_CRI_FROM_CID(
+			     beiscsi_conn->beiscsi_conn_cid);
 	pasync_handle->is_header = is_header;
 	pasync_handle->buffer_len = dpl;
 	*pcq_index = index;
@@ -1682,18 +1682,13 @@ hwi_update_async_writables(struct beiscsi_hba *phba,
 }
 
 static void hwi_free_async_msg(struct beiscsi_hba *phba,
-				       unsigned int cri)
+			       struct hwi_async_pdu_context *pasync_ctx,
+			       unsigned int cri)
 {
-	struct hwi_controller *phwi_ctrlr;
-	struct hwi_async_pdu_context *pasync_ctx;
 	struct async_pdu_handle *pasync_handle, *tmp_handle;
 	struct list_head *plist;
 
-	phwi_ctrlr = phba->phwi_ctrlr;
-	pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
-
 	plist  = &pasync_ctx->async_entry[cri].wait_queue.list;
-
 	list_for_each_entry_safe(pasync_handle, tmp_handle, plist, link) {
 		list_del(&pasync_handle->link);
 
@@ -1728,7 +1723,7 @@ hwi_get_ring_address(struct hwi_async_pdu_context *pasync_ctx,
 }
 
 static void hwi_post_async_buffers(struct beiscsi_hba *phba,
-				   unsigned int is_header)
+				    unsigned int is_header, uint8_t ulp_num)
 {
 	struct hwi_controller *phwi_ctrlr;
 	struct hwi_async_pdu_context *pasync_ctx;
@@ -1736,13 +1731,13 @@ static void hwi_post_async_buffers(struct beiscsi_hba *phba,
 	struct list_head *pfree_link, *pbusy_list;
 	struct phys_addr *pasync_sge;
 	unsigned int ring_id, num_entries;
-	unsigned int host_write_num;
+	unsigned int host_write_num, doorbell_offset;
 	unsigned int writables;
 	unsigned int i = 0;
 	u32 doorbell = 0;
 
 	phwi_ctrlr = phba->phwi_ctrlr;
-	pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
+	pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr, ulp_num);
 	num_entries = pasync_ctx->num_entries;
 
 	if (is_header) {
@@ -1750,13 +1745,17 @@ static void hwi_post_async_buffers(struct beiscsi_hba *phba,
 				pasync_ctx->async_header.free_entries);
 		pfree_link = pasync_ctx->async_header.free_list.next;
 		host_write_num = pasync_ctx->async_header.host_write_ptr;
-		ring_id = phwi_ctrlr->default_pdu_hdr.id;
+		ring_id = phwi_ctrlr->default_pdu_hdr[ulp_num].id;
+		doorbell_offset = phwi_ctrlr->default_pdu_hdr[ulp_num].
+				  doorbell_offset;
 	} else {
 		writables = min(pasync_ctx->async_data.writables,
 				pasync_ctx->async_data.free_entries);
 		pfree_link = pasync_ctx->async_data.free_list.next;
 		host_write_num = pasync_ctx->async_data.host_write_ptr;
-		ring_id = phwi_ctrlr->default_pdu_data.id;
+		ring_id = phwi_ctrlr->default_pdu_data[ulp_num].id;
+		doorbell_offset = phwi_ctrlr->default_pdu_data[ulp_num].
+				  doorbell_offset;
 	}
 
 	writables = (writables / 8) * 8;
@@ -1804,7 +1803,7 @@ static void hwi_post_async_buffers(struct beiscsi_hba *phba,
 		doorbell |= (writables & DB_DEF_PDU_CQPROC_MASK)
 					<< DB_DEF_PDU_CQPROC_SHIFT;
 
-		iowrite32(doorbell, phba->db_va + DB_RXULP0_OFFSET);
+		iowrite32(doorbell, phba->db_va + doorbell_offset);
 	}
 }
 
@@ -1816,9 +1815,13 @@ static void hwi_flush_default_pdu_buffer(struct beiscsi_hba *phba,
 	struct hwi_async_pdu_context *pasync_ctx;
 	struct async_pdu_handle *pasync_handle = NULL;
 	unsigned int cq_index = -1;
+	uint16_t cri_index = BE_GET_CRI_FROM_CID(
+			     beiscsi_conn->beiscsi_conn_cid);
 
 	phwi_ctrlr = phba->phwi_ctrlr;
-	pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
+	pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr,
+		     BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr,
+		     cri_index));
 
 	pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx,
 					     pdpdu_cqe, &cq_index);
@@ -1827,8 +1830,10 @@ static void hwi_flush_default_pdu_buffer(struct beiscsi_hba *phba,
 		hwi_update_async_writables(phba, pasync_ctx,
 					   pasync_handle->is_header, cq_index);
 
-	hwi_free_async_msg(phba, pasync_handle->cri);
-	hwi_post_async_buffers(phba, pasync_handle->is_header);
+	hwi_free_async_msg(phba, pasync_ctx, pasync_handle->cri);
+	hwi_post_async_buffers(phba, pasync_handle->is_header,
+			       BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr,
+			       cri_index));
 }
 
 static unsigned int
@@ -1867,7 +1872,7 @@ hwi_fwd_async_msg(struct beiscsi_conn *beiscsi_conn,
 					    phdr, hdr_len, pfirst_buffer,
 					    offset);
 
-	hwi_free_async_msg(phba, cri);
+	hwi_free_async_msg(phba, pasync_ctx, cri);
 	return 0;
 }
 
@@ -1883,13 +1888,16 @@ hwi_gather_async_pdu(struct beiscsi_conn *beiscsi_conn,
 	struct pdu_base *ppdu;
 
 	phwi_ctrlr = phba->phwi_ctrlr;
-	pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
+	pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr,
+		     BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr,
+		     BE_GET_CRI_FROM_CID(beiscsi_conn->
+				 beiscsi_conn_cid)));
 
 	list_del(&pasync_handle->link);
 	if (pasync_handle->is_header) {
 		pasync_ctx->async_header.busy_entries--;
 		if (pasync_ctx->async_entry[cri].wait_queue.hdr_received) {
-			hwi_free_async_msg(phba, cri);
+			hwi_free_async_msg(phba, pasync_ctx, cri);
 			BUG();
 		}
 
@@ -1944,9 +1952,14 @@ static void hwi_process_default_pdu_ring(struct beiscsi_conn *beiscsi_conn,
 	struct hwi_async_pdu_context *pasync_ctx;
 	struct async_pdu_handle *pasync_handle = NULL;
 	unsigned int cq_index = -1;
+	uint16_t cri_index = BE_GET_CRI_FROM_CID(
+			     beiscsi_conn->beiscsi_conn_cid);
 
 	phwi_ctrlr = phba->phwi_ctrlr;
-	pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr);
+	pasync_ctx = HWI_GET_ASYNC_PDU_CTX(phwi_ctrlr,
+		     BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr,
+		     cri_index));
+
 	pasync_handle = hwi_get_async_handle(phba, beiscsi_conn, pasync_ctx,
 					     pdpdu_cqe, &cq_index);
 
@@ -1955,7 +1968,9 @@ static void hwi_process_default_pdu_ring(struct beiscsi_conn *beiscsi_conn,
 					   pasync_handle->is_header, cq_index);
 
 	hwi_gather_async_pdu(beiscsi_conn, phba, pasync_handle);
-	hwi_post_async_buffers(phba, pasync_handle->is_header);
+	hwi_post_async_buffers(phba, pasync_handle->is_header,
+			       BEISCSI_GET_ULP_FROM_CRI(
+			       phwi_ctrlr, cri_index));
 }
 
 static void  beiscsi_process_mcc_isr(struct beiscsi_hba *phba)
@@ -2496,24 +2511,13 @@ static void hwi_write_buffer(struct iscsi_wrb *pwrb, struct iscsi_task *task)
  **/
 static void beiscsi_find_mem_req(struct beiscsi_hba *phba)
 {
+	uint8_t mem_descr_index, ulp_num;
 	unsigned int num_cq_pages, num_async_pdu_buf_pages;
 	unsigned int num_async_pdu_data_pages, wrb_sz_per_cxn;
 	unsigned int num_async_pdu_buf_sgl_pages, num_async_pdu_data_sgl_pages;
 
 	num_cq_pages = PAGES_REQUIRED(phba->params.num_cq_entries * \
 				      sizeof(struct sol_cqe));
-	num_async_pdu_buf_pages =
-			PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \
-				       phba->params.defpdu_hdr_sz);
-	num_async_pdu_buf_sgl_pages =
-			PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \
-				       sizeof(struct phys_addr));
-	num_async_pdu_data_pages =
-			PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \
-				       phba->params.defpdu_data_sz);
-	num_async_pdu_data_sgl_pages =
-			PAGES_REQUIRED(phba->params.asyncpdus_per_ctrl * \
-				       sizeof(struct phys_addr));
 
 	phba->params.hwi_ws_sz = sizeof(struct hwi_controller);
 
@@ -2537,24 +2541,73 @@ static void beiscsi_find_mem_req(struct beiscsi_hba *phba)
 		phba->params.num_sge_per_io * phba->params.icds_per_ctrl;
 	phba->mem_req[HWI_MEM_TEMPLATE_HDR] = phba->params.cxns_per_ctrl *
 					      BEISCSI_TEMPLATE_HDR_PER_CXN_SIZE;
+	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+		if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
 
-	phba->mem_req[HWI_MEM_ASYNC_HEADER_BUF] =
-		num_async_pdu_buf_pages * PAGE_SIZE;
-	phba->mem_req[HWI_MEM_ASYNC_DATA_BUF] =
-		num_async_pdu_data_pages * PAGE_SIZE;
-	phba->mem_req[HWI_MEM_ASYNC_HEADER_RING] =
-		num_async_pdu_buf_sgl_pages * PAGE_SIZE;
-	phba->mem_req[HWI_MEM_ASYNC_DATA_RING] =
-		num_async_pdu_data_sgl_pages * PAGE_SIZE;
-	phba->mem_req[HWI_MEM_ASYNC_HEADER_HANDLE] =
-		phba->params.asyncpdus_per_ctrl *
-		sizeof(struct async_pdu_handle);
-	phba->mem_req[HWI_MEM_ASYNC_DATA_HANDLE] =
-		phba->params.asyncpdus_per_ctrl *
-		sizeof(struct async_pdu_handle);
-	phba->mem_req[HWI_MEM_ASYNC_PDU_CONTEXT] =
-		sizeof(struct hwi_async_pdu_context) +
-		(phba->params.cxns_per_ctrl * sizeof(struct hwi_async_entry));
+			num_async_pdu_buf_sgl_pages =
+				PAGES_REQUIRED(BEISCSI_GET_CID_COUNT(
+					       phba, ulp_num) *
+					       sizeof(struct phys_addr));
+
+			num_async_pdu_buf_pages =
+				PAGES_REQUIRED(BEISCSI_GET_CID_COUNT(
+					       phba, ulp_num) *
+					       phba->params.defpdu_hdr_sz);
+
+			num_async_pdu_data_pages =
+				PAGES_REQUIRED(BEISCSI_GET_CID_COUNT(
+					       phba, ulp_num) *
+					       phba->params.defpdu_data_sz);
+
+			num_async_pdu_data_sgl_pages =
+				PAGES_REQUIRED(BEISCSI_GET_CID_COUNT(
+					       phba, ulp_num) *
+					       sizeof(struct phys_addr));
+
+			mem_descr_index = (HWI_MEM_ASYNC_HEADER_BUF_ULP0 +
+					  (ulp_num * MEM_DESCR_OFFSET));
+			phba->mem_req[mem_descr_index] =
+					  num_async_pdu_buf_pages *
+					  PAGE_SIZE;
+
+			mem_descr_index = (HWI_MEM_ASYNC_DATA_BUF_ULP0 +
+					  (ulp_num * MEM_DESCR_OFFSET));
+			phba->mem_req[mem_descr_index] =
+					  num_async_pdu_data_pages *
+					  PAGE_SIZE;
+
+			mem_descr_index = (HWI_MEM_ASYNC_HEADER_RING_ULP0 +
+					  (ulp_num * MEM_DESCR_OFFSET));
+			phba->mem_req[mem_descr_index] =
+					  num_async_pdu_buf_sgl_pages *
+					  PAGE_SIZE;
+
+			mem_descr_index = (HWI_MEM_ASYNC_DATA_RING_ULP0 +
+					  (ulp_num * MEM_DESCR_OFFSET));
+			phba->mem_req[mem_descr_index] =
+					  num_async_pdu_data_sgl_pages *
+					  PAGE_SIZE;
+
+			mem_descr_index = (HWI_MEM_ASYNC_HEADER_HANDLE_ULP0 +
+					  (ulp_num * MEM_DESCR_OFFSET));
+			phba->mem_req[mem_descr_index] =
+					  BEISCSI_GET_CID_COUNT(phba, ulp_num) *
+					  sizeof(struct async_pdu_handle);
+
+			mem_descr_index = (HWI_MEM_ASYNC_DATA_HANDLE_ULP0 +
+					  (ulp_num * MEM_DESCR_OFFSET));
+			phba->mem_req[mem_descr_index] =
+					  BEISCSI_GET_CID_COUNT(phba, ulp_num) *
+					  sizeof(struct async_pdu_handle);
+
+			mem_descr_index = (HWI_MEM_ASYNC_PDU_CONTEXT_ULP0 +
+					  (ulp_num * MEM_DESCR_OFFSET));
+			phba->mem_req[mem_descr_index] =
+					  sizeof(struct hwi_async_pdu_context) +
+					 (BEISCSI_GET_CID_COUNT(phba, ulp_num) *
+					  sizeof(struct hwi_async_entry));
+		}
+	}
 }
 
 static int beiscsi_alloc_mem(struct beiscsi_hba *phba)
@@ -2596,6 +2649,12 @@ static int beiscsi_alloc_mem(struct beiscsi_hba *phba)
 
 	mem_descr = phba->init_mem;
 	for (i = 0; i < SE_MEM_MAX; i++) {
+		if (!phba->mem_req[i]) {
+			mem_descr->mem_array = NULL;
+			mem_descr++;
+			continue;
+		}
+
 		j = 0;
 		mem_arr = mem_arr_orig;
 		alloc_size = phba->mem_req[i];
@@ -2799,6 +2858,7 @@ init_wrb_hndl_failed:
 
 static int hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
 {
+	uint8_t ulp_num;
 	struct hwi_controller *phwi_ctrlr;
 	struct hba_parameters *p = &phba->params;
 	struct hwi_async_pdu_context *pasync_ctx;
@@ -2806,155 +2866,150 @@ static int hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
 	unsigned int index, idx, num_per_mem, num_async_data;
 	struct be_mem_descriptor *mem_descr;
 
-	mem_descr = (struct be_mem_descriptor *)phba->init_mem;
-	mem_descr += HWI_MEM_ASYNC_PDU_CONTEXT;
+	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+		if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
 
-	phwi_ctrlr = phba->phwi_ctrlr;
-	phwi_ctrlr->phwi_ctxt->pasync_ctx = (struct hwi_async_pdu_context *)
+			mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+			mem_descr += (HWI_MEM_ASYNC_PDU_CONTEXT_ULP0 +
+				     (ulp_num * MEM_DESCR_OFFSET));
+
+			phwi_ctrlr = phba->phwi_ctrlr;
+			phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num] =
+				(struct hwi_async_pdu_context *)
+				 mem_descr->mem_array[0].virtual_address;
+
+			pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num];
+			memset(pasync_ctx, 0, sizeof(*pasync_ctx));
+
+			pasync_ctx->async_entry =
+					(struct hwi_async_entry *)
+					((long unsigned int)pasync_ctx +
+					sizeof(struct hwi_async_pdu_context));
+
+			pasync_ctx->num_entries = BEISCSI_GET_CID_COUNT(phba,
+						  ulp_num);
+			pasync_ctx->buffer_size = p->defpdu_hdr_sz;
+
+			mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+			mem_descr += HWI_MEM_ASYNC_HEADER_BUF_ULP0 +
+				(ulp_num * MEM_DESCR_OFFSET);
+			if (mem_descr->mem_array[0].virtual_address) {
+				beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+					    "BM_%d : hwi_init_async_pdu_ctx"
+					    " HWI_MEM_ASYNC_HEADER_BUF_ULP%d va=%p\n",
+					    ulp_num,
+					    mem_descr->mem_array[0].
+					    virtual_address);
+			} else
+				beiscsi_log(phba, KERN_WARNING,
+					    BEISCSI_LOG_INIT,
+					    "BM_%d : No Virtual address for ULP : %d\n",
+					    ulp_num);
+
+			pasync_ctx->async_header.va_base =
 				mem_descr->mem_array[0].virtual_address;
-	pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx;
-	memset(pasync_ctx, 0, sizeof(*pasync_ctx));
-
-	pasync_ctx->async_entry = kzalloc(sizeof(struct hwi_async_entry) *
-					  phba->params.cxns_per_ctrl,
-					  GFP_KERNEL);
-	if (!pasync_ctx->async_entry) {
-		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
-			    "BM_%d : hwi_init_async_pdu_ctx Mem Alloc Failed\n");
-		return -ENOMEM;
-	}
-
-	pasync_ctx->num_entries = p->asyncpdus_per_ctrl;
-	pasync_ctx->buffer_size = p->defpdu_hdr_sz;
 
-	mem_descr = (struct be_mem_descriptor *)phba->init_mem;
-	mem_descr += HWI_MEM_ASYNC_HEADER_BUF;
-	if (mem_descr->mem_array[0].virtual_address) {
-		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
-			    "BM_%d : hwi_init_async_pdu_ctx"
-			    " HWI_MEM_ASYNC_HEADER_BUF va=%p\n",
-			    mem_descr->mem_array[0].virtual_address);
-	} else
-		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
-			    "BM_%d : No Virtual address\n");
-
-	pasync_ctx->async_header.va_base =
-			mem_descr->mem_array[0].virtual_address;
-
-	pasync_ctx->async_header.pa_base.u.a64.address =
-			mem_descr->mem_array[0].bus_address.u.a64.address;
-
-	mem_descr = (struct be_mem_descriptor *)phba->init_mem;
-	mem_descr += HWI_MEM_ASYNC_HEADER_RING;
-	if (mem_descr->mem_array[0].virtual_address) {
-		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
-			    "BM_%d : hwi_init_async_pdu_ctx"
-			    " HWI_MEM_ASYNC_HEADER_RING va=%p\n",
-			    mem_descr->mem_array[0].virtual_address);
-	} else
-		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
-			    "BM_%d : No Virtual address\n");
-
-	pasync_ctx->async_header.ring_base =
-			mem_descr->mem_array[0].virtual_address;
-
-	mem_descr = (struct be_mem_descriptor *)phba->init_mem;
-	mem_descr += HWI_MEM_ASYNC_HEADER_HANDLE;
-	if (mem_descr->mem_array[0].virtual_address) {
-		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
-			    "BM_%d : hwi_init_async_pdu_ctx"
-			    " HWI_MEM_ASYNC_HEADER_HANDLE va=%p\n",
-			    mem_descr->mem_array[0].virtual_address);
-	} else
-		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
-			    "BM_%d : No Virtual address\n");
-
-	pasync_ctx->async_header.handle_base =
-			mem_descr->mem_array[0].virtual_address;
-	pasync_ctx->async_header.writables = 0;
-	INIT_LIST_HEAD(&pasync_ctx->async_header.free_list);
-
-
-	mem_descr = (struct be_mem_descriptor *)phba->init_mem;
-	mem_descr += HWI_MEM_ASYNC_DATA_RING;
-	if (mem_descr->mem_array[0].virtual_address) {
-		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
-			    "BM_%d : hwi_init_async_pdu_ctx"
-			    " HWI_MEM_ASYNC_DATA_RING va=%p\n",
-			    mem_descr->mem_array[0].virtual_address);
-	} else
-		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
-			    "BM_%d : No Virtual address\n");
-
-	pasync_ctx->async_data.ring_base =
-			mem_descr->mem_array[0].virtual_address;
-
-	mem_descr = (struct be_mem_descriptor *)phba->init_mem;
-	mem_descr += HWI_MEM_ASYNC_DATA_HANDLE;
-	if (!mem_descr->mem_array[0].virtual_address)
-		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
-			    "BM_%d : No Virtual address\n");
+			pasync_ctx->async_header.pa_base.u.a64.address =
+				mem_descr->mem_array[0].
+				bus_address.u.a64.address;
 
-	pasync_ctx->async_data.handle_base =
-			mem_descr->mem_array[0].virtual_address;
-	pasync_ctx->async_data.writables = 0;
-	INIT_LIST_HEAD(&pasync_ctx->async_data.free_list);
+			mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+			mem_descr += HWI_MEM_ASYNC_HEADER_RING_ULP0 +
+				     (ulp_num * MEM_DESCR_OFFSET);
+			if (mem_descr->mem_array[0].virtual_address) {
+				beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+					    "BM_%d : hwi_init_async_pdu_ctx"
+					    " HWI_MEM_ASYNC_HEADER_RING_ULP%d va=%p\n",
+					    ulp_num,
+					    mem_descr->mem_array[0].
+					    virtual_address);
+			} else
+				beiscsi_log(phba, KERN_WARNING,
+					    BEISCSI_LOG_INIT,
+					    "BM_%d : No Virtual address for ULP : %d\n",
+					    ulp_num);
+
+			pasync_ctx->async_header.ring_base =
+				mem_descr->mem_array[0].virtual_address;
 
-	pasync_header_h =
-		(struct async_pdu_handle *)pasync_ctx->async_header.handle_base;
-	pasync_data_h =
-		(struct async_pdu_handle *)pasync_ctx->async_data.handle_base;
+			mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+			mem_descr += HWI_MEM_ASYNC_HEADER_HANDLE_ULP0 +
+				     (ulp_num * MEM_DESCR_OFFSET);
+			if (mem_descr->mem_array[0].virtual_address) {
+				beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+					    "BM_%d : hwi_init_async_pdu_ctx"
+					    " HWI_MEM_ASYNC_HEADER_HANDLE_ULP%d va=%p\n",
+					    ulp_num,
+					    mem_descr->mem_array[0].
+					    virtual_address);
+			} else
+				beiscsi_log(phba, KERN_WARNING,
+					    BEISCSI_LOG_INIT,
+					    "BM_%d : No Virtual address for ULP : %d\n",
+					    ulp_num);
+
+			pasync_ctx->async_header.handle_base =
+				mem_descr->mem_array[0].virtual_address;
+			pasync_ctx->async_header.writables = 0;
+			INIT_LIST_HEAD(&pasync_ctx->async_header.free_list);
+
+			mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+			mem_descr += HWI_MEM_ASYNC_DATA_RING_ULP0 +
+				     (ulp_num * MEM_DESCR_OFFSET);
+			if (mem_descr->mem_array[0].virtual_address) {
+				beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+					    "BM_%d : hwi_init_async_pdu_ctx"
+					    " HWI_MEM_ASYNC_DATA_RING_ULP%d va=%p\n",
+					    ulp_num,
+					    mem_descr->mem_array[0].
+					    virtual_address);
+			} else
+				beiscsi_log(phba, KERN_WARNING,
+					    BEISCSI_LOG_INIT,
+					    "BM_%d : No Virtual address for ULP : %d\n",
+					    ulp_num);
+
+			pasync_ctx->async_data.ring_base =
+				mem_descr->mem_array[0].virtual_address;
 
-	mem_descr = (struct be_mem_descriptor *)phba->init_mem;
-	mem_descr += HWI_MEM_ASYNC_DATA_BUF;
-	if (mem_descr->mem_array[0].virtual_address) {
-		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
-			    "BM_%d : hwi_init_async_pdu_ctx"
-			    " HWI_MEM_ASYNC_DATA_BUF va=%p\n",
-			    mem_descr->mem_array[0].virtual_address);
-	} else
-		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
-			    "BM_%d : No Virtual address\n");
+			mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+			mem_descr += HWI_MEM_ASYNC_DATA_HANDLE_ULP0 +
+				     (ulp_num * MEM_DESCR_OFFSET);
+			if (!mem_descr->mem_array[0].virtual_address)
+				beiscsi_log(phba, KERN_WARNING,
+					    BEISCSI_LOG_INIT,
+					    "BM_%d : No Virtual address for ULP : %d\n",
+					    ulp_num);
 
-	idx = 0;
-	pasync_ctx->async_data.va_base =
-			mem_descr->mem_array[idx].virtual_address;
-	pasync_ctx->async_data.pa_base.u.a64.address =
-			mem_descr->mem_array[idx].bus_address.u.a64.address;
-
-	num_async_data = ((mem_descr->mem_array[idx].size) /
-				phba->params.defpdu_data_sz);
-	num_per_mem = 0;
-
-	for (index = 0; index < p->asyncpdus_per_ctrl; index++) {
-		pasync_header_h->cri = -1;
-		pasync_header_h->index = (char)index;
-		INIT_LIST_HEAD(&pasync_header_h->link);
-		pasync_header_h->pbuffer =
-			(void *)((unsigned long)
-			(pasync_ctx->async_header.va_base) +
-			(p->defpdu_hdr_sz * index));
-
-		pasync_header_h->pa.u.a64.address =
-			pasync_ctx->async_header.pa_base.u.a64.address +
-			(p->defpdu_hdr_sz * index);
-
-		list_add_tail(&pasync_header_h->link,
-				&pasync_ctx->async_header.free_list);
-		pasync_header_h++;
-		pasync_ctx->async_header.free_entries++;
-		pasync_ctx->async_header.writables++;
-
-		INIT_LIST_HEAD(&pasync_ctx->async_entry[index].wait_queue.list);
-		INIT_LIST_HEAD(&pasync_ctx->async_entry[index].
-			       header_busy_list);
-		pasync_data_h->cri = -1;
-		pasync_data_h->index = (char)index;
-		INIT_LIST_HEAD(&pasync_data_h->link);
-
-		if (!num_async_data) {
-			num_per_mem = 0;
-			idx++;
+			pasync_ctx->async_data.handle_base =
+				mem_descr->mem_array[0].virtual_address;
+			pasync_ctx->async_data.writables = 0;
+			INIT_LIST_HEAD(&pasync_ctx->async_data.free_list);
+
+			pasync_header_h =
+				(struct async_pdu_handle *)
+				pasync_ctx->async_header.handle_base;
+			pasync_data_h =
+				(struct async_pdu_handle *)
+				pasync_ctx->async_data.handle_base;
+
+			mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+			mem_descr += HWI_MEM_ASYNC_DATA_BUF_ULP0 +
+				     (ulp_num * MEM_DESCR_OFFSET);
+			if (mem_descr->mem_array[0].virtual_address) {
+				beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+					    "BM_%d : hwi_init_async_pdu_ctx"
+					    " HWI_MEM_ASYNC_DATA_BUF_ULP%d va=%p\n",
+					    ulp_num,
+					    mem_descr->mem_array[0].
+					    virtual_address);
+			} else
+				beiscsi_log(phba, KERN_WARNING,
+					    BEISCSI_LOG_INIT,
+					    "BM_%d : No Virtual address for ULP : %d\n",
+					    ulp_num);
+
+			idx = 0;
 			pasync_ctx->async_data.va_base =
 				mem_descr->mem_array[idx].virtual_address;
 			pasync_ctx->async_data.pa_base.u.a64.address =
@@ -2963,32 +3018,83 @@ static int hwi_init_async_pdu_ctx(struct beiscsi_hba *phba)
 
 			num_async_data = ((mem_descr->mem_array[idx].size) /
 					phba->params.defpdu_data_sz);
-		}
-		pasync_data_h->pbuffer =
-			(void *)((unsigned long)
-			(pasync_ctx->async_data.va_base) +
-			(p->defpdu_data_sz * num_per_mem));
-
-		pasync_data_h->pa.u.a64.address =
-		    pasync_ctx->async_data.pa_base.u.a64.address +
-		    (p->defpdu_data_sz * num_per_mem);
-		num_per_mem++;
-		num_async_data--;
+			num_per_mem = 0;
 
-		list_add_tail(&pasync_data_h->link,
-			      &pasync_ctx->async_data.free_list);
-		pasync_data_h++;
-		pasync_ctx->async_data.free_entries++;
-		pasync_ctx->async_data.writables++;
+			for (index = 0;	index < BEISCSI_GET_CID_COUNT
+					(phba, ulp_num); index++) {
+				pasync_header_h->cri = -1;
+				pasync_header_h->index = (char)index;
+				INIT_LIST_HEAD(&pasync_header_h->link);
+				pasync_header_h->pbuffer =
+					(void *)((unsigned long)
+						 (pasync_ctx->
+						  async_header.va_base) +
+						 (p->defpdu_hdr_sz * index));
+
+				pasync_header_h->pa.u.a64.address =
+					pasync_ctx->async_header.pa_base.u.a64.
+					address + (p->defpdu_hdr_sz * index);
+
+				list_add_tail(&pasync_header_h->link,
+					      &pasync_ctx->async_header.
+					      free_list);
+				pasync_header_h++;
+				pasync_ctx->async_header.free_entries++;
+				pasync_ctx->async_header.writables++;
+
+				INIT_LIST_HEAD(&pasync_ctx->async_entry[index].
+					       wait_queue.list);
+				INIT_LIST_HEAD(&pasync_ctx->async_entry[index].
+					       header_busy_list);
+				pasync_data_h->cri = -1;
+				pasync_data_h->index = (char)index;
+				INIT_LIST_HEAD(&pasync_data_h->link);
+
+				if (!num_async_data) {
+					num_per_mem = 0;
+					idx++;
+					pasync_ctx->async_data.va_base =
+						mem_descr->mem_array[idx].
+						virtual_address;
+					pasync_ctx->async_data.pa_base.u.
+						a64.address =
+						mem_descr->mem_array[idx].
+						bus_address.u.a64.address;
+					num_async_data =
+						((mem_descr->mem_array[idx].
+						  size) /
+						 phba->params.defpdu_data_sz);
+				}
+				pasync_data_h->pbuffer =
+					(void *)((unsigned long)
+					(pasync_ctx->async_data.va_base) +
+					(p->defpdu_data_sz * num_per_mem));
+
+				pasync_data_h->pa.u.a64.address =
+					pasync_ctx->async_data.pa_base.u.a64.
+					address + (p->defpdu_data_sz *
+					num_per_mem);
+				num_per_mem++;
+				num_async_data--;
+
+				list_add_tail(&pasync_data_h->link,
+					      &pasync_ctx->async_data.
+					      free_list);
+				pasync_data_h++;
+				pasync_ctx->async_data.free_entries++;
+				pasync_ctx->async_data.writables++;
+
+				INIT_LIST_HEAD(&pasync_ctx->async_entry[index].
+					       data_busy_list);
+			}
 
-		INIT_LIST_HEAD(&pasync_ctx->async_entry[index].data_busy_list);
+			pasync_ctx->async_header.host_write_ptr = 0;
+			pasync_ctx->async_header.ep_read_ptr = -1;
+			pasync_ctx->async_data.host_write_ptr = 0;
+			pasync_ctx->async_data.ep_read_ptr = -1;
+		}
 	}
 
-	pasync_ctx->async_header.host_write_ptr = 0;
-	pasync_ctx->async_header.ep_read_ptr = -1;
-	pasync_ctx->async_data.host_write_ptr = 0;
-	pasync_ctx->async_data.ep_read_ptr = -1;
-
 	return 0;
 }
 
@@ -3184,7 +3290,7 @@ static int
 beiscsi_create_def_hdr(struct beiscsi_hba *phba,
 		       struct hwi_context_memory *phwi_context,
 		       struct hwi_controller *phwi_ctrlr,
-		       unsigned int def_pdu_ring_sz)
+		       unsigned int def_pdu_ring_sz, uint8_t ulp_num)
 {
 	unsigned int idx;
 	int ret;
@@ -3194,36 +3300,42 @@ beiscsi_create_def_hdr(struct beiscsi_hba *phba,
 	void *dq_vaddress;
 
 	idx = 0;
-	dq = &phwi_context->be_def_hdrq;
+	dq = &phwi_context->be_def_hdrq[ulp_num];
 	cq = &phwi_context->be_cq[0];
 	mem = &dq->dma_mem;
 	mem_descr = phba->init_mem;
-	mem_descr += HWI_MEM_ASYNC_HEADER_RING;
+	mem_descr += HWI_MEM_ASYNC_HEADER_RING_ULP0 +
+		    (ulp_num * MEM_DESCR_OFFSET);
 	dq_vaddress = mem_descr->mem_array[idx].virtual_address;
 	ret = be_fill_queue(dq, mem_descr->mem_array[0].size /
 			    sizeof(struct phys_addr),
 			    sizeof(struct phys_addr), dq_vaddress);
 	if (ret) {
 		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
-			    "BM_%d : be_fill_queue Failed for DEF PDU HDR\n");
+			    "BM_%d : be_fill_queue Failed for DEF PDU HDR on ULP : %d\n",
+			    ulp_num);
+
 		return ret;
 	}
 	mem->dma = (unsigned long)mem_descr->mem_array[idx].
 				  bus_address.u.a64.address;
 	ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dq,
 					      def_pdu_ring_sz,
-					      phba->params.defpdu_hdr_sz);
+					      phba->params.defpdu_hdr_sz,
+					      BEISCSI_DEFQ_HDR, ulp_num);
 	if (ret) {
 		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
-			    "BM_%d : be_cmd_create_default_pdu_queue Failed DEFHDR\n");
+			    "BM_%d : be_cmd_create_default_pdu_queue Failed DEFHDR on ULP : %d\n",
+			    ulp_num);
+
 		return ret;
 	}
-	phwi_ctrlr->default_pdu_hdr.id = phwi_context->be_def_hdrq.id;
-	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
-		    "BM_%d : iscsi def pdu id is %d\n",
-		    phwi_context->be_def_hdrq.id);
 
-	hwi_post_async_buffers(phba, 1);
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+		    "BM_%d : iscsi hdr def pdu id for ULP : %d is %d\n",
+		    ulp_num,
+		    phwi_context->be_def_hdrq[ulp_num].id);
+	hwi_post_async_buffers(phba, BEISCSI_DEFQ_HDR, ulp_num);
 	return 0;
 }
 
@@ -3231,7 +3343,7 @@ static int
 beiscsi_create_def_data(struct beiscsi_hba *phba,
 			struct hwi_context_memory *phwi_context,
 			struct hwi_controller *phwi_ctrlr,
-			unsigned int def_pdu_ring_sz)
+			unsigned int def_pdu_ring_sz, uint8_t ulp_num)
 {
 	unsigned int idx;
 	int ret;
@@ -3241,39 +3353,47 @@ beiscsi_create_def_data(struct beiscsi_hba *phba,
 	void *dq_vaddress;
 
 	idx = 0;
-	dataq = &phwi_context->be_def_dataq;
+	dataq = &phwi_context->be_def_dataq[ulp_num];
 	cq = &phwi_context->be_cq[0];
 	mem = &dataq->dma_mem;
 	mem_descr = phba->init_mem;
-	mem_descr += HWI_MEM_ASYNC_DATA_RING;
+	mem_descr += HWI_MEM_ASYNC_DATA_RING_ULP0 +
+		    (ulp_num * MEM_DESCR_OFFSET);
 	dq_vaddress = mem_descr->mem_array[idx].virtual_address;
 	ret = be_fill_queue(dataq, mem_descr->mem_array[0].size /
 			    sizeof(struct phys_addr),
 			    sizeof(struct phys_addr), dq_vaddress);
 	if (ret) {
 		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
-			    "BM_%d : be_fill_queue Failed for DEF PDU DATA\n");
+			    "BM_%d : be_fill_queue Failed for DEF PDU "
+			    "DATA on ULP : %d\n",
+			    ulp_num);
+
 		return ret;
 	}
 	mem->dma = (unsigned long)mem_descr->mem_array[idx].
 				  bus_address.u.a64.address;
 	ret = be_cmd_create_default_pdu_queue(&phba->ctrl, cq, dataq,
 					      def_pdu_ring_sz,
-					      phba->params.defpdu_data_sz);
+					      phba->params.defpdu_data_sz,
+					      BEISCSI_DEFQ_DATA, ulp_num);
 	if (ret) {
 		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
 			    "BM_%d be_cmd_create_default_pdu_queue"
-			    " Failed for DEF PDU DATA\n");
+			    " Failed for DEF PDU DATA on ULP : %d\n",
+			    ulp_num);
 		return ret;
 	}
-	phwi_ctrlr->default_pdu_data.id = phwi_context->be_def_dataq.id;
+
 	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
-		    "BM_%d : iscsi def data id is %d\n",
-		    phwi_context->be_def_dataq.id);
+		    "BM_%d : iscsi def data id on ULP : %d is  %d\n",
+		    ulp_num,
+		    phwi_context->be_def_dataq[ulp_num].id);
 
-	hwi_post_async_buffers(phba, 0);
+	hwi_post_async_buffers(phba, BEISCSI_DEFQ_DATA, ulp_num);
 	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
-		    "BM_%d : DEFAULT PDU DATA RING CREATED\n");
+		    "BM_%d : DEFAULT PDU DATA RING CREATED"
+		    "on ULP : %d\n", ulp_num);
 
 	return 0;
 }
@@ -3483,7 +3603,7 @@ static void hwi_cleanup(struct beiscsi_hba *phba)
 	struct hwi_controller *phwi_ctrlr;
 	struct hwi_context_memory *phwi_context;
 	struct hwi_async_pdu_context *pasync_ctx;
-	int i, eq_num;
+	int i, eq_num, ulp_num;
 
 	phwi_ctrlr = phba->phwi_ctrlr;
 	phwi_context = phwi_ctrlr->phwi_ctxt;
@@ -3498,13 +3618,20 @@ static void hwi_cleanup(struct beiscsi_hba *phba)
 	kfree(phwi_context->be_wrbq);
 	free_wrb_handles(phba);
 
-	q = &phwi_context->be_def_hdrq;
-	if (q->created)
-		beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
+	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+		if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
 
-	q = &phwi_context->be_def_dataq;
-	if (q->created)
-		beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
+			q = &phwi_context->be_def_hdrq[ulp_num];
+			if (q->created)
+				beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
+
+			q = &phwi_context->be_def_dataq[ulp_num];
+			if (q->created)
+				beiscsi_cmd_q_destroy(ctrl, q, QTYPE_DPDUQ);
+
+			pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx[ulp_num];
+		}
+	}
 
 	beiscsi_cmd_q_destroy(ctrl, NULL, QTYPE_SGL);
 
@@ -3523,9 +3650,6 @@ static void hwi_cleanup(struct beiscsi_hba *phba)
 			beiscsi_cmd_q_destroy(ctrl, q, QTYPE_EQ);
 	}
 	be_mcc_queues_destroy(phba);
-
-	pasync_ctx = phwi_ctrlr->phwi_ctxt->pasync_ctx;
-	kfree(pasync_ctx->async_entry);
 	be_cmd_fw_uninit(ctrl);
 }
 
@@ -3605,10 +3729,8 @@ static int hwi_init_port(struct beiscsi_hba *phba)
 	struct hwi_context_memory *phwi_context;
 	unsigned int def_pdu_ring_sz;
 	struct be_ctrl_info *ctrl = &phba->ctrl;
-	int status;
+	int status, ulp_num;
 
-	def_pdu_ring_sz =
-		phba->params.asyncpdus_per_ctrl * sizeof(struct phys_addr);
 	phwi_ctrlr = phba->phwi_ctrlr;
 	phwi_context = phwi_ctrlr->phwi_ctxt;
 	phwi_context->max_eqd = 0;
@@ -3641,20 +3763,35 @@ static int hwi_init_port(struct beiscsi_hba *phba)
 		goto error;
 	}
 
-	status = beiscsi_create_def_hdr(phba, phwi_context, phwi_ctrlr,
-					def_pdu_ring_sz);
-	if (status != 0) {
-		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
-			    "BM_%d : Default Header not created\n");
-		goto error;
-	}
+	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+		if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
 
-	status = beiscsi_create_def_data(phba, phwi_context,
-					 phwi_ctrlr, def_pdu_ring_sz);
-	if (status != 0) {
-		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
-			    "BM_%d : Default Data not created\n");
-		goto error;
+			def_pdu_ring_sz =
+				BEISCSI_GET_CID_COUNT(phba, ulp_num) *
+				sizeof(struct phys_addr);
+
+			status = beiscsi_create_def_hdr(phba, phwi_context,
+							phwi_ctrlr,
+							def_pdu_ring_sz,
+							ulp_num);
+			if (status != 0) {
+				beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+					    "BM_%d : Default Header not created for ULP : %d\n",
+					    ulp_num);
+				goto error;
+			}
+
+			status = beiscsi_create_def_data(phba, phwi_context,
+							 phwi_ctrlr,
+							 def_pdu_ring_sz,
+							 ulp_num);
+			if (status != 0) {
+				beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+					    "BM_%d : Default Data not created for ULP : %d\n",
+					    ulp_num);
+				goto error;
+			}
+		}
 	}
 
 	status = beiscsi_post_pages(phba);
@@ -3677,6 +3814,26 @@ static int hwi_init_port(struct beiscsi_hba *phba)
 		goto error;
 	}
 
+	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+		uint16_t async_arr_idx = 0;
+
+		if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
+			uint16_t cri = 0;
+			struct hwi_async_pdu_context *pasync_ctx;
+
+			pasync_ctx = HWI_GET_ASYNC_PDU_CTX(
+				     phwi_ctrlr, ulp_num);
+			for (cri = 0; cri <
+			     phba->params.cxns_per_ctrl; cri++) {
+				if (ulp_num == BEISCSI_GET_ULP_FROM_CRI
+					       (phwi_ctrlr, cri))
+					pasync_ctx->cid_to_async_cri_map[
+					phwi_ctrlr->wrb_context[cri].cid] =
+					async_arr_idx++;
+			}
+		}
+	}
+
 	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
 		    "BM_%d : hwi_init_port success\n");
 	return 0;
@@ -3741,6 +3898,7 @@ static void beiscsi_free_mem(struct beiscsi_hba *phba)
 			  (unsigned long)mem_descr->mem_array[j - 1].
 			  bus_address.u.a64.address);
 		}
+
 		kfree(mem_descr->mem_array);
 		mem_descr++;
 	}
diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
index 39bc1857adc5..d0bbf373cb2e 100644
--- a/drivers/scsi/be2iscsi/be_main.h
+++ b/drivers/scsi/be2iscsi/be_main.h
@@ -105,7 +105,8 @@
  * So have atleast 8 of them by default
  */
 
-#define HWI_GET_ASYNC_PDU_CTX(phwi)	(phwi->phwi_ctxt->pasync_ctx)
+#define HWI_GET_ASYNC_PDU_CTX(phwi, ulp_num)	\
+	(phwi->phwi_ctxt->pasync_ctx[ulp_num])
 
 /********* Memory BAR register ************/
 #define PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET	0xfc
@@ -150,16 +151,19 @@
 #define DB_CQ_REARM_SHIFT		(29)	/* bit 29 */
 
 #define GET_HWI_CONTROLLER_WS(pc)	(pc->phwi_ctrlr)
-#define HWI_GET_DEF_BUFQ_ID(pc) (((struct hwi_controller *)\
-		(GET_HWI_CONTROLLER_WS(pc)))->default_pdu_data.id)
-#define HWI_GET_DEF_HDRQ_ID(pc) (((struct hwi_controller *)\
-		(GET_HWI_CONTROLLER_WS(pc)))->default_pdu_hdr.id)
+#define HWI_GET_DEF_BUFQ_ID(pc, ulp_num) (((struct hwi_controller *)\
+		(GET_HWI_CONTROLLER_WS(pc)))->default_pdu_data[ulp_num].id)
+#define HWI_GET_DEF_HDRQ_ID(pc, ulp_num) (((struct hwi_controller *)\
+		(GET_HWI_CONTROLLER_WS(pc)))->default_pdu_hdr[ulp_num].id)
 
 #define PAGES_REQUIRED(x) \
 	((x < PAGE_SIZE) ? 1 :  ((x + PAGE_SIZE - 1) / PAGE_SIZE))
 
 #define BEISCSI_MSI_NAME 20 /* size of msi_name string */
 
+#define MEM_DESCR_OFFSET 7
+#define BEISCSI_DEFQ_HDR 1
+#define BEISCSI_DEFQ_DATA 0
 enum be_mem_enum {
 	HWI_MEM_ADDN_CONTEXT,
 	HWI_MEM_WRB,
@@ -167,13 +171,20 @@ enum be_mem_enum {
 	HWI_MEM_SGLH,
 	HWI_MEM_SGE,
 	HWI_MEM_TEMPLATE_HDR,
-	HWI_MEM_ASYNC_HEADER_BUF,	/* 5 */
-	HWI_MEM_ASYNC_DATA_BUF,
-	HWI_MEM_ASYNC_HEADER_RING,
-	HWI_MEM_ASYNC_DATA_RING,
-	HWI_MEM_ASYNC_HEADER_HANDLE,
-	HWI_MEM_ASYNC_DATA_HANDLE,	/* 10 */
-	HWI_MEM_ASYNC_PDU_CONTEXT,
+	HWI_MEM_ASYNC_HEADER_BUF_ULP0,
+	HWI_MEM_ASYNC_DATA_BUF_ULP0,
+	HWI_MEM_ASYNC_HEADER_RING_ULP0,
+	HWI_MEM_ASYNC_DATA_RING_ULP0,
+	HWI_MEM_ASYNC_HEADER_HANDLE_ULP0,
+	HWI_MEM_ASYNC_DATA_HANDLE_ULP0,
+	HWI_MEM_ASYNC_PDU_CONTEXT_ULP0,
+	HWI_MEM_ASYNC_HEADER_BUF_ULP1,
+	HWI_MEM_ASYNC_DATA_BUF_ULP1,
+	HWI_MEM_ASYNC_HEADER_RING_ULP1,
+	HWI_MEM_ASYNC_DATA_RING_ULP1,
+	HWI_MEM_ASYNC_HEADER_HANDLE_ULP1,
+	HWI_MEM_ASYNC_DATA_HANDLE_ULP1,
+	HWI_MEM_ASYNC_PDU_CONTEXT_ULP1,
 	ISCSI_MEM_GLOBAL_HEADER,
 	SE_MEM_MAX
 };
@@ -337,7 +348,7 @@ struct beiscsi_hba {
 		unsigned int phys_port;
 		unsigned int iscsi_cid_start[BEISCSI_ULP_COUNT];
 #define BEISCSI_GET_CID_COUNT(phba, ulp_num) \
-			      (phba->fw_config.iscsi_cid_count[ulp_num])
+		(phba->fw_config.iscsi_cid_count[ulp_num])
 		unsigned int iscsi_cid_count[BEISCSI_ULP_COUNT];
 		unsigned int iscsi_icd_count[BEISCSI_ULP_COUNT];
 		unsigned int iscsi_icd_start[BEISCSI_ULP_COUNT];
@@ -577,7 +588,8 @@ struct hwi_async_pdu_context {
 
 	unsigned int buffer_size;
 	unsigned int num_entries;
-
+#define BE_GET_ASYNC_CRI_FROM_CID(cid) (pasync_ctx->cid_to_async_cri_map[cid])
+	unsigned short cid_to_async_cri_map[BE_MAX_SESSION];
 	/**
 	 * This is a varying size list! Do not add anything
 	 * after this entry!!
@@ -931,6 +943,10 @@ struct be_ring {
 	u32 cidx;		/* consumer index */
 	u32 pidx;		/* producer index -- not used by most rings */
 	u32 item_size;		/* size in bytes of one object */
+	u8 ulp_num;	/* ULP to which CID binded */
+	u16 register_set;
+	u16 doorbell_format;
+	u32 doorbell_offset;
 
 	void *va;		/* The virtual address of the ring.  This
 				 * should be last to allow 32 & 64 bit debugger
@@ -938,6 +954,8 @@ struct be_ring {
 				 */
 };
 
+#define BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr, cri) \
+	(phwi_ctrlr->wrb_context[cri].ulp_num)
 struct hwi_wrb_context {
 	struct list_head wrb_handle_list;
 	struct list_head wrb_handle_drvr_list;
@@ -948,6 +966,7 @@ struct hwi_wrb_context {
 	unsigned short free_index;
 	unsigned short wrb_handles_available;
 	unsigned short cid;
+	uint8_t ulp_num;	/* ULP to which CID binded */
 };
 
 struct hwi_controller {
@@ -958,8 +977,8 @@ struct hwi_controller {
 
 	struct hwi_wrb_context *wrb_context;
 	struct mcc_wrb *pmcc_wrb_base;
-	struct be_ring default_pdu_hdr;
-	struct be_ring default_pdu_data;
+	struct be_ring default_pdu_hdr[BEISCSI_ULP_COUNT];
+	struct be_ring default_pdu_data[BEISCSI_ULP_COUNT];
 	struct hwi_context_memory *phwi_ctxt;
 };
 
@@ -990,11 +1009,10 @@ struct hwi_context_memory {
 	struct be_eq_obj be_eq[MAX_CPUS];
 	struct be_queue_info be_cq[MAX_CPUS - 1];
 
-	struct be_queue_info be_def_hdrq;
-	struct be_queue_info be_def_dataq;
-
 	struct be_queue_info *be_wrbq;
-	struct hwi_async_pdu_context *pasync_ctx;
+	struct be_queue_info be_def_hdrq[BEISCSI_ULP_COUNT];
+	struct be_queue_info be_def_dataq[BEISCSI_ULP_COUNT];
+	struct hwi_async_pdu_context *pasync_ctx[BEISCSI_ULP_COUNT];
 };
 
 /* Logging related definitions */
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index c46a60b883eb..75756d722538 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -315,7 +315,7 @@ int mgmt_get_fw_config(struct be_ctrl_info *ctrl,
 			if (pfw_cfg->ulp[ulp_num].ulp_mode &
 			    BEISCSI_ULP_ISCSI_INI_MODE)
 				set_bit(ulp_num,
-					&phba->fw_config.ulp_supported);
+				&phba->fw_config.ulp_supported);
 
 		phba->fw_config.phys_port = pfw_cfg->phys_port;
 		for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
@@ -506,8 +506,8 @@ int mgmt_epfw_cleanup(struct beiscsi_hba *phba, unsigned short chute)
 			   OPCODE_COMMON_ISCSI_CLEANUP, sizeof(*req));
 
 	req->chute = chute;
-	req->hdr_ring_id = cpu_to_le16(HWI_GET_DEF_HDRQ_ID(phba));
-	req->data_ring_id = cpu_to_le16(HWI_GET_DEF_BUFQ_ID(phba));
+	req->hdr_ring_id = cpu_to_le16(HWI_GET_DEF_HDRQ_ID(phba, 0));
+	req->data_ring_id = cpu_to_le16(HWI_GET_DEF_BUFQ_ID(phba, 0));
 
 	status =  be_mcc_notify_wait(phba);
 	if (status)
@@ -651,8 +651,8 @@ int mgmt_open_connection(struct beiscsi_hba *phba,
 
 	phwi_ctrlr = phba->phwi_ctrlr;
 	phwi_context = phwi_ctrlr->phwi_ctxt;
-	def_hdr_id = (unsigned short)HWI_GET_DEF_HDRQ_ID(phba);
-	def_data_id = (unsigned short)HWI_GET_DEF_BUFQ_ID(phba);
+	def_hdr_id = (unsigned short)HWI_GET_DEF_HDRQ_ID(phba, 0);
+	def_data_id = (unsigned short)HWI_GET_DEF_BUFQ_ID(phba, 0);
 
 	ptemplate_address = &template_address;
 	ISCSI_GET_PDU_TEMPLATE_ADDRESS(phba, ptemplate_address);
-- 
cgit 


From a129d92fc3e202d8135112a7ac7ad48849ab6812 Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:46 -0700
Subject: [SCSI] be2iscsi: Fix Template HDR support for Dual Chute mode

Template HDR is created for each chute which has iSCSI Protocol loaded.
For BE-X family iSCSI protocol is loaded only on single chute.

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_main.c | 43 +++++++++++++++++++++++++----------------
 drivers/scsi/be2iscsi/be_main.h | 13 +++++++------
 2 files changed, 33 insertions(+), 23 deletions(-)

diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 779be2b3ede8..942a8969ce0d 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -2539,8 +2539,6 @@ static void beiscsi_find_mem_req(struct beiscsi_hba *phba)
 		phba->params.icds_per_ctrl;
 	phba->mem_req[HWI_MEM_SGE] = sizeof(struct iscsi_sge) *
 		phba->params.num_sge_per_io * phba->params.icds_per_ctrl;
-	phba->mem_req[HWI_MEM_TEMPLATE_HDR] = phba->params.cxns_per_ctrl *
-					      BEISCSI_TEMPLATE_HDR_PER_CXN_SIZE;
 	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
 		if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
 
@@ -2564,6 +2562,12 @@ static void beiscsi_find_mem_req(struct beiscsi_hba *phba)
 					       phba, ulp_num) *
 					       sizeof(struct phys_addr));
 
+			mem_descr_index = (HWI_MEM_TEMPLATE_HDR_ULP0 +
+					  (ulp_num * MEM_DESCR_OFFSET));
+			phba->mem_req[mem_descr_index] =
+					BEISCSI_GET_CID_COUNT(phba, ulp_num) *
+					BEISCSI_TEMPLATE_HDR_PER_CXN_SIZE;
+
 			mem_descr_index = (HWI_MEM_ASYNC_HEADER_BUF_ULP0 +
 					  (ulp_num * MEM_DESCR_OFFSET));
 			phba->mem_req[mem_descr_index] =
@@ -3405,26 +3409,31 @@ beiscsi_post_template_hdr(struct beiscsi_hba *phba)
 	struct be_mem_descriptor *mem_descr;
 	struct mem_array *pm_arr;
 	struct be_dma_mem sgl;
-	int status, i;
+	int status, ulp_num;
 
-	mem_descr = phba->init_mem;
-	mem_descr += HWI_MEM_TEMPLATE_HDR;
-	pm_arr = mem_descr->mem_array;
+	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+		if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
+			mem_descr = (struct be_mem_descriptor *)phba->init_mem;
+			mem_descr += HWI_MEM_TEMPLATE_HDR_ULP0 +
+				    (ulp_num * MEM_DESCR_OFFSET);
+			pm_arr = mem_descr->mem_array;
 
-	for (i = 0; i < mem_descr->num_elements; i++) {
-		hwi_build_be_sgl_arr(phba, pm_arr, &sgl);
-		status = be_cmd_iscsi_post_template_hdr(&phba->ctrl, &sgl);
+			hwi_build_be_sgl_arr(phba, pm_arr, &sgl);
+			status = be_cmd_iscsi_post_template_hdr(
+				 &phba->ctrl, &sgl);
 
-		if (status != 0) {
-			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
-				    "BM_%d : Post Template HDR Failed\n");
-			return status;
+			if (status != 0) {
+				beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+					    "BM_%d : Post Template HDR Failed for"
+					    "ULP_%d\n", ulp_num);
+				return status;
+			}
+
+			beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+				    "BM_%d : Template HDR Pages Posted for"
+				    "ULP_%d\n", ulp_num);
 		}
 	}
-
-	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
-		    "BM_%d : Template HDR Pages Posted\n");
-
 	return 0;
 }
 
diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
index d0bbf373cb2e..bb96ba4f6468 100644
--- a/drivers/scsi/be2iscsi/be_main.h
+++ b/drivers/scsi/be2iscsi/be_main.h
@@ -161,7 +161,7 @@
 
 #define BEISCSI_MSI_NAME 20 /* size of msi_name string */
 
-#define MEM_DESCR_OFFSET 7
+#define MEM_DESCR_OFFSET 8
 #define BEISCSI_DEFQ_HDR 1
 #define BEISCSI_DEFQ_DATA 0
 enum be_mem_enum {
@@ -170,20 +170,21 @@ enum be_mem_enum {
 	HWI_MEM_WRBH,
 	HWI_MEM_SGLH,
 	HWI_MEM_SGE,
-	HWI_MEM_TEMPLATE_HDR,
-	HWI_MEM_ASYNC_HEADER_BUF_ULP0,
+	HWI_MEM_TEMPLATE_HDR_ULP0,
+	HWI_MEM_ASYNC_HEADER_BUF_ULP0,	/* 6 */
 	HWI_MEM_ASYNC_DATA_BUF_ULP0,
 	HWI_MEM_ASYNC_HEADER_RING_ULP0,
 	HWI_MEM_ASYNC_DATA_RING_ULP0,
 	HWI_MEM_ASYNC_HEADER_HANDLE_ULP0,
-	HWI_MEM_ASYNC_DATA_HANDLE_ULP0,
+	HWI_MEM_ASYNC_DATA_HANDLE_ULP0,	/* 11 */
 	HWI_MEM_ASYNC_PDU_CONTEXT_ULP0,
-	HWI_MEM_ASYNC_HEADER_BUF_ULP1,
+	HWI_MEM_TEMPLATE_HDR_ULP1,
+	HWI_MEM_ASYNC_HEADER_BUF_ULP1,	/* 14 */
 	HWI_MEM_ASYNC_DATA_BUF_ULP1,
 	HWI_MEM_ASYNC_HEADER_RING_ULP1,
 	HWI_MEM_ASYNC_DATA_RING_ULP1,
 	HWI_MEM_ASYNC_HEADER_HANDLE_ULP1,
-	HWI_MEM_ASYNC_DATA_HANDLE_ULP1,
+	HWI_MEM_ASYNC_DATA_HANDLE_ULP1,	/* 19 */
 	HWI_MEM_ASYNC_PDU_CONTEXT_ULP1,
 	ISCSI_MEM_GLOBAL_HEADER,
 	SE_MEM_MAX
-- 
cgit 


From 90622db3165476182c3348b6c4371d095f1cb193 Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:47 -0700
Subject: [SCSI] be2iscsi: Fix SGL Initilization and posting Pages for Dual
 Chute

Initialization of SGL and related PAGE posting is to be done for the chute.
Based on configuration value of each Chute,SGL initialization and page posting
is done.

For BE-X family iSCSI protocol is loaded only on single chute

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_main.c | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 942a8969ce0d..59d7e932d715 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -3450,6 +3450,10 @@ beiscsi_post_pages(struct beiscsi_hba *phba)
 	mem_descr += HWI_MEM_SGE;
 	pm_arr = mem_descr->mem_array;
 
+	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
+		if (test_bit(ulp_num, &phba->fw_config.ulp_supported))
+			break;
+
 	page_offset = (sizeof(struct iscsi_sge) * phba->params.num_sge_per_io *
 			phba->fw_config.iscsi_icd_start[ulp_num]) / PAGE_SIZE;
 	for (i = 0; i < mem_descr->num_elements; i++) {
@@ -3946,7 +3950,8 @@ static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba)
 	struct be_mem_descriptor *mem_descr_sglh, *mem_descr_sg;
 	struct sgl_handle *psgl_handle;
 	struct iscsi_sge *pfrag;
-	unsigned int arr_index, i, idx, ulp_num = 0;
+	unsigned int arr_index, i, idx;
+	unsigned int ulp_icd_start, ulp_num = 0;
 
 	phba->io_sgl_hndl_avbl = 0;
 	phba->eh_sgl_hndl_avbl = 0;
@@ -4013,6 +4018,12 @@ static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba)
 		    "\n BM_%d : mem_descr_sg->num_elements=%d\n",
 		    mem_descr_sg->num_elements);
 
+	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
+		if (test_bit(ulp_num, &phba->fw_config.ulp_supported))
+			break;
+
+	ulp_icd_start = phba->fw_config.iscsi_icd_start[ulp_num];
+
 	arr_index = 0;
 	idx = 0;
 	while (idx < mem_descr_sg->num_elements) {
@@ -4031,9 +4042,7 @@ static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba)
 			AMAP_SET_BITS(struct amap_iscsi_sge, addr_hi, pfrag, 0);
 			AMAP_SET_BITS(struct amap_iscsi_sge, addr_lo, pfrag, 0);
 			pfrag += phba->params.num_sge_per_io;
-			psgl_handle->sgl_index =
-				phba->fw_config.iscsi_icd_start[ulp_num] +
-				arr_index++;
+			psgl_handle->sgl_index = ulp_icd_start + arr_index++;
 		}
 		idx++;
 	}
-- 
cgit 


From 4eea99d55da137c1f5aaccba7c24539e6467305d Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:48 -0700
Subject: [SCSI] be2iscsi: Fix WRB_Q posting to support Dual Chute mode

Configuration parameters return number of CID each chute supports. The WRB_Q
is created for the passed CID count. If both the Chute has iSCSI Protocol then
WRB_Q creation is in a round robin mechanism.

For BE-X family iSCSI protocol is loaded only on single chute.

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_cmds.c | 37 ++++++++++++++++++++++++++++++++++---
 drivers/scsi/be2iscsi/be_cmds.h | 12 +++++++++---
 drivers/scsi/be2iscsi/be_main.c | 30 +++++++++++++++++++++++++++---
 drivers/scsi/be2iscsi/be_main.h | 35 +++++++++++++++++++----------------
 4 files changed, 89 insertions(+), 25 deletions(-)

diff --git a/drivers/scsi/be2iscsi/be_cmds.c b/drivers/scsi/be2iscsi/be_cmds.c
index b77a327ecea9..cc37a4e5ce45 100644
--- a/drivers/scsi/be2iscsi/be_cmds.c
+++ b/drivers/scsi/be2iscsi/be_cmds.c
@@ -17,9 +17,9 @@
 
 #include <scsi/iscsi_proto.h>
 
+#include "be_main.h"
 #include "be.h"
 #include "be_mgmt.h"
-#include "be_main.h"
 
 int beiscsi_pci_soft_reset(struct beiscsi_hba *phba)
 {
@@ -1135,12 +1135,27 @@ int be_cmd_create_default_pdu_queue(struct be_ctrl_info *ctrl,
 	return status;
 }
 
-int be_cmd_wrbq_create(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem,
-		       struct be_queue_info *wrbq)
+/**
+ * be_cmd_wrbq_create()- Create WRBQ
+ * @ctrl: ptr to ctrl_info
+ * @q_mem: memory details for the queue
+ * @wrbq: queue info
+ * @pwrb_context: ptr to wrb_context
+ * @ulp_num: ULP on which the WRBQ is to be created
+ *
+ * Create WRBQ on the passed ULP_NUM.
+ *
+ **/
+int be_cmd_wrbq_create(struct be_ctrl_info *ctrl,
+			struct be_dma_mem *q_mem,
+			struct be_queue_info *wrbq,
+			struct hwi_wrb_context *pwrb_context,
+			uint8_t ulp_num)
 {
 	struct be_mcc_wrb *wrb = wrb_from_mbox(&ctrl->mbox_mem);
 	struct be_wrbq_create_req *req = embedded_payload(wrb);
 	struct be_wrbq_create_resp *resp = embedded_payload(wrb);
+	struct beiscsi_hba *phba = pci_get_drvdata(ctrl->pdev);
 	int status;
 
 	spin_lock(&ctrl->mbox_lock);
@@ -1151,12 +1166,28 @@ int be_cmd_wrbq_create(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem,
 	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
 		OPCODE_COMMON_ISCSI_WRBQ_CREATE, sizeof(*req));
 	req->num_pages = PAGES_4K_SPANNED(q_mem->va, q_mem->size);
+
+	if (phba->fw_config.dual_ulp_aware) {
+		req->ulp_num = ulp_num;
+		req->dua_feature |= (1 << BEISCSI_DUAL_ULP_AWARE_BIT);
+		req->dua_feature |= (1 << BEISCSI_BIND_Q_TO_ULP_BIT);
+	}
+
 	be_cmd_page_addrs_prepare(req->pages, ARRAY_SIZE(req->pages), q_mem);
 
 	status = be_mbox_notify(ctrl);
 	if (!status) {
 		wrbq->id = le16_to_cpu(resp->cid);
 		wrbq->created = true;
+
+		pwrb_context->cid = wrbq->id;
+		if (!phba->fw_config.dual_ulp_aware) {
+			pwrb_context->doorbell_offset = DB_TXULP0_OFFSET;
+			pwrb_context->ulp_num = BEISCSI_ULP0;
+		} else {
+			pwrb_context->ulp_num = resp->ulp_num;
+			pwrb_context->doorbell_offset = resp->doorbell_offset;
+		}
 	}
 	spin_unlock(&ctrl->mbox_lock);
 	return status;
diff --git a/drivers/scsi/be2iscsi/be_cmds.h b/drivers/scsi/be2iscsi/be_cmds.h
index 40bc2855ba0a..627ebbe0172c 100644
--- a/drivers/scsi/be2iscsi/be_cmds.h
+++ b/drivers/scsi/be2iscsi/be_cmds.h
@@ -744,7 +744,9 @@ int be_cmd_iscsi_post_sgl_pages(struct be_ctrl_info *ctrl,
 int beiscsi_cmd_reset_function(struct beiscsi_hba *phba);
 
 int be_cmd_wrbq_create(struct be_ctrl_info *ctrl, struct be_dma_mem *q_mem,
-		       struct be_queue_info *wrbq);
+		       struct be_queue_info *wrbq,
+		       struct hwi_wrb_context *pwrb_context,
+		       uint8_t ulp_num);
 
 bool is_link_state_evt(u32 trailer);
 
@@ -836,14 +838,18 @@ struct be_wrbq_create_req {
 	struct be_cmd_req_hdr hdr;
 	u16 num_pages;
 	u8 ulp_num;
-	u8 rsvd0;
+	u8 dua_feature;
 	struct phys_addr pages[8];
 } __packed;
 
 struct be_wrbq_create_resp {
 	struct be_cmd_resp_hdr resp_hdr;
 	u16 cid;
-	u16 rsvd0;
+	u8 rsvd0;
+	u8 ulp_num;
+	u32 doorbell_offset;
+	u16 register_set;
+	u16 doorbell_format;
 } __packed;
 
 #define SOL_CID_MASK		0x0000FFC0
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 59d7e932d715..8595908e62dc 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -3507,13 +3507,15 @@ beiscsi_create_wrb_rings(struct beiscsi_hba *phba,
 {
 	unsigned int wrb_mem_index, offset, size, num_wrb_rings;
 	u64 pa_addr_lo;
-	unsigned int idx, num, i;
+	unsigned int idx, num, i, ulp_num;
 	struct mem_array *pwrb_arr;
 	void *wrb_vaddr;
 	struct be_dma_mem sgl;
 	struct be_mem_descriptor *mem_descr;
 	struct hwi_wrb_context *pwrb_context;
 	int status;
+	uint8_t ulp_count = 0, ulp_base_num = 0;
+	uint16_t cid_count_ulp[BEISCSI_ULP_COUNT] = { 0 };
 
 	idx = 0;
 	mem_descr = phba->init_mem;
@@ -3557,14 +3559,37 @@ beiscsi_create_wrb_rings(struct beiscsi_hba *phba,
 			num_wrb_rings--;
 		}
 	}
+
+	/* Get the ULP Count */
+	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
+		if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
+			ulp_count++;
+			ulp_base_num = ulp_num;
+			cid_count_ulp[ulp_num] =
+				BEISCSI_GET_CID_COUNT(phba, ulp_num);
+		}
+
 	for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
 		wrb_mem_index = 0;
 		offset = 0;
 		size = 0;
 
+		if (ulp_count > 1) {
+			ulp_base_num = (ulp_base_num + 1) % BEISCSI_ULP_COUNT;
+
+			if (!cid_count_ulp[ulp_base_num])
+				ulp_base_num = (ulp_base_num + 1) %
+						BEISCSI_ULP_COUNT;
+
+			cid_count_ulp[ulp_base_num]--;
+		}
+
+
 		hwi_build_be_sgl_by_offset(phba, &pwrb_arr[i], &sgl);
 		status = be_cmd_wrbq_create(&phba->ctrl, &sgl,
-					    &phwi_context->be_wrbq[i]);
+					    &phwi_context->be_wrbq[i],
+					    &phwi_ctrlr->wrb_context[i],
+					    ulp_base_num);
 		if (status != 0) {
 			beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
 				    "BM_%d : wrbq create failed.");
@@ -3572,7 +3597,6 @@ beiscsi_create_wrb_rings(struct beiscsi_hba *phba,
 			return status;
 		}
 		pwrb_context = &phwi_ctrlr->wrb_context[i];
-		pwrb_context->cid = phwi_context->be_wrbq[i].id;
 		BE_SET_CID_TO_CRI(i, pwrb_context->cid);
 	}
 	kfree(pwrb_arr);
diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
index bb96ba4f6468..410efc72bfd9 100644
--- a/drivers/scsi/be2iscsi/be_main.h
+++ b/drivers/scsi/be2iscsi/be_main.h
@@ -34,7 +34,6 @@
 #include <scsi/libiscsi.h>
 #include <scsi/scsi_transport_iscsi.h>
 
-#include "be.h"
 #define DRV_NAME		"be2iscsi"
 #define BUILD_STR		"10.0.467.0"
 #define BE_NAME			"Emulex OneConnect" \
@@ -280,6 +279,25 @@ struct invalidate_command_table {
 	unsigned short cid;
 } __packed;
 
+#define BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr, cri) \
+	(phwi_ctrlr->wrb_context[cri].ulp_num)
+struct hwi_wrb_context {
+	struct list_head wrb_handle_list;
+	struct list_head wrb_handle_drvr_list;
+	struct wrb_handle **pwrb_handle_base;
+	struct wrb_handle **pwrb_handle_basestd;
+	struct iscsi_wrb *plast_wrb;
+	unsigned short alloc_index;
+	unsigned short free_index;
+	unsigned short wrb_handles_available;
+	unsigned short cid;
+	uint8_t ulp_num;	/* ULP to which CID binded */
+	uint16_t register_set;
+	uint16_t doorbell_format;
+	uint32_t doorbell_offset;
+};
+
+#include "be.h"
 #define chip_be2(phba)      (phba->generation == BE_GEN2)
 #define chip_be3_r(phba)    (phba->generation == BE_GEN3)
 #define is_chip_be2_be3r(phba) (chip_be3_r(phba) || (chip_be2(phba)))
@@ -955,21 +973,6 @@ struct be_ring {
 				 */
 };
 
-#define BEISCSI_GET_ULP_FROM_CRI(phwi_ctrlr, cri) \
-	(phwi_ctrlr->wrb_context[cri].ulp_num)
-struct hwi_wrb_context {
-	struct list_head wrb_handle_list;
-	struct list_head wrb_handle_drvr_list;
-	struct wrb_handle **pwrb_handle_base;
-	struct wrb_handle **pwrb_handle_basestd;
-	struct iscsi_wrb *plast_wrb;
-	unsigned short alloc_index;
-	unsigned short free_index;
-	unsigned short wrb_handles_available;
-	unsigned short cid;
-	uint8_t ulp_num;	/* ULP to which CID binded */
-};
-
 struct hwi_controller {
 	struct list_head io_sgl_list;
 	struct list_head eh_sgl_list;
-- 
cgit 


From 0a3db7c0a3e566e872aa9b0ac2eaf1353be7ffcc Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:49 -0700
Subject: [SCSI] be2iscsi: Fix CID allocation/freeing to support Dual chute
 mode

Configuration parameters returns the number of connection that
can be offloaded one each chute.

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_iscsi.c |  54 +++++++++++++++-----
 drivers/scsi/be2iscsi/be_main.c  | 108 ++++++++++++++++++++++++++++++++-------
 drivers/scsi/be2iscsi/be_main.h  |  20 ++++++--
 drivers/scsi/be2iscsi/be_mgmt.c  |  16 +++++-
 4 files changed, 160 insertions(+), 38 deletions(-)

diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c
index f698f7aa7ef9..63b2be0f58a8 100644
--- a/drivers/scsi/be2iscsi/be_iscsi.c
+++ b/drivers/scsi/be2iscsi/be_iscsi.c
@@ -964,15 +964,31 @@ int beiscsi_conn_start(struct iscsi_cls_conn *cls_conn)
  */
 static int beiscsi_get_cid(struct beiscsi_hba *phba)
 {
-	unsigned short cid = 0xFFFF;
-
-	if (!phba->avlbl_cids)
-		return cid;
-
-	cid = phba->cid_array[phba->cid_alloc++];
-	if (phba->cid_alloc == phba->params.cxns_per_ctrl)
-		phba->cid_alloc = 0;
-	phba->avlbl_cids--;
+	unsigned short cid = 0xFFFF, cid_from_ulp;
+	struct ulp_cid_info *cid_info = NULL;
+	uint16_t cid_avlbl_ulp0, cid_avlbl_ulp1;
+
+	/* Find the ULP which has more CID available */
+	cid_avlbl_ulp0 = (phba->cid_array_info[BEISCSI_ULP0]) ?
+			  BEISCSI_ULP0_AVLBL_CID(phba) : 0;
+	cid_avlbl_ulp1 = (phba->cid_array_info[BEISCSI_ULP1]) ?
+			  BEISCSI_ULP1_AVLBL_CID(phba) : 0;
+	cid_from_ulp = (cid_avlbl_ulp0 > cid_avlbl_ulp1) ?
+			BEISCSI_ULP0 : BEISCSI_ULP1;
+
+	if (test_bit(cid_from_ulp, (void *)&phba->fw_config.ulp_supported)) {
+		cid_info = phba->cid_array_info[cid_from_ulp];
+		if (!cid_info->avlbl_cids)
+			return cid;
+
+		cid = cid_info->cid_array[cid_info->cid_alloc++];
+
+		if (cid_info->cid_alloc == BEISCSI_GET_CID_COUNT(
+					   phba, cid_from_ulp))
+			cid_info->cid_alloc = 0;
+
+		cid_info->avlbl_cids--;
+	}
 	return cid;
 }
 
@@ -983,10 +999,22 @@ static int beiscsi_get_cid(struct beiscsi_hba *phba)
  */
 static void beiscsi_put_cid(struct beiscsi_hba *phba, unsigned short cid)
 {
-	phba->avlbl_cids++;
-	phba->cid_array[phba->cid_free++] = cid;
-	if (phba->cid_free == phba->params.cxns_per_ctrl)
-		phba->cid_free = 0;
+	uint16_t cid_post_ulp;
+	struct hwi_controller *phwi_ctrlr;
+	struct hwi_wrb_context *pwrb_context;
+	struct ulp_cid_info *cid_info = NULL;
+	uint16_t cri_index = BE_GET_CRI_FROM_CID(cid);
+
+	phwi_ctrlr = phba->phwi_ctrlr;
+	pwrb_context = &phwi_ctrlr->wrb_context[cri_index];
+	cid_post_ulp = pwrb_context->ulp_num;
+
+	cid_info = phba->cid_array_info[cid_post_ulp];
+	cid_info->avlbl_cids++;
+
+	cid_info->cid_array[cid_info->cid_free++] = cid;
+	if (cid_info->cid_free == BEISCSI_GET_CID_COUNT(phba, cid_post_ulp))
+		cid_info->cid_free = 0;
 }
 
 /**
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 8595908e62dc..b57e5bd62018 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -4079,15 +4079,46 @@ static int beiscsi_init_sgl_handle(struct beiscsi_hba *phba)
 
 static int hba_setup_cid_tbls(struct beiscsi_hba *phba)
 {
-	int i;
+	int ret;
+	uint16_t i, ulp_num;
+	struct ulp_cid_info *ptr_cid_info = NULL;
 
-	phba->cid_array = kzalloc(sizeof(void *) * phba->params.cxns_per_ctrl,
-				  GFP_KERNEL);
-	if (!phba->cid_array) {
-		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
-			    "BM_%d : Failed to allocate memory in "
-			    "hba_setup_cid_tbls\n");
-		return -ENOMEM;
+	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+		if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
+			ptr_cid_info = kzalloc(sizeof(struct ulp_cid_info),
+					       GFP_KERNEL);
+
+			if (!ptr_cid_info) {
+				beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+					    "BM_%d : Failed to allocate memory"
+					    "for ULP_CID_INFO for ULP : %d\n",
+					    ulp_num);
+				ret = -ENOMEM;
+				goto free_memory;
+
+			}
+
+			/* Allocate memory for CID array */
+			ptr_cid_info->cid_array = kzalloc(sizeof(void *) *
+						  BEISCSI_GET_CID_COUNT(phba,
+						  ulp_num), GFP_KERNEL);
+			if (!ptr_cid_info->cid_array) {
+				beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+					    "BM_%d : Failed to allocate memory"
+					    "for CID_ARRAY for ULP : %d\n",
+					    ulp_num);
+				kfree(ptr_cid_info);
+				ptr_cid_info = NULL;
+				ret = -ENOMEM;
+
+				goto free_memory;
+			}
+			ptr_cid_info->avlbl_cids = BEISCSI_GET_CID_COUNT(
+						   phba, ulp_num);
+
+			/* Save the cid_info_array ptr */
+			phba->cid_array_info[ulp_num] = ptr_cid_info;
+		}
 	}
 	phba->ep_array = kzalloc(sizeof(struct iscsi_endpoint *) *
 				 phba->params.cxns_per_ctrl, GFP_KERNEL);
@@ -4095,9 +4126,9 @@ static int hba_setup_cid_tbls(struct beiscsi_hba *phba)
 		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
 			    "BM_%d : Failed to allocate memory in "
 			    "hba_setup_cid_tbls\n");
-		kfree(phba->cid_array);
-		phba->cid_array = NULL;
-		return -ENOMEM;
+		ret = -ENOMEM;
+
+		goto free_memory;
 	}
 
 	phba->conn_table = kzalloc(sizeof(struct beiscsi_conn *) *
@@ -4107,18 +4138,44 @@ static int hba_setup_cid_tbls(struct beiscsi_hba *phba)
 			    "BM_%d : Failed to allocate memory in"
 			    "hba_setup_cid_tbls\n");
 
-		kfree(phba->cid_array);
 		kfree(phba->ep_array);
-		phba->cid_array = NULL;
 		phba->ep_array = NULL;
-		return -ENOMEM;
+		ret = -ENOMEM;
 	}
 
-	for (i = 0; i < phba->params.cxns_per_ctrl; i++)
-		phba->cid_array[i] = phba->phwi_ctrlr->wrb_context[i].cid;
+	for (i = 0; i < phba->params.cxns_per_ctrl; i++) {
+		ulp_num = phba->phwi_ctrlr->wrb_context[i].ulp_num;
+
+		ptr_cid_info = phba->cid_array_info[ulp_num];
+		ptr_cid_info->cid_array[ptr_cid_info->cid_alloc++] =
+			phba->phwi_ctrlr->wrb_context[i].cid;
+
+	}
+
+	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+		if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
+			ptr_cid_info = phba->cid_array_info[ulp_num];
 
-	phba->avlbl_cids = phba->params.cxns_per_ctrl;
+			ptr_cid_info->cid_alloc = 0;
+			ptr_cid_info->cid_free = 0;
+		}
+	}
 	return 0;
+
+free_memory:
+	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+		if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
+			ptr_cid_info = phba->cid_array_info[ulp_num];
+
+			if (ptr_cid_info) {
+				kfree(ptr_cid_info->cid_array);
+				kfree(ptr_cid_info);
+				phba->cid_array_info[ulp_num] = NULL;
+			}
+		}
+	}
+
+	return ret;
 }
 
 static void hwi_enable_intr(struct beiscsi_hba *phba)
@@ -4373,7 +4430,8 @@ static void hwi_purge_eq(struct beiscsi_hba *phba)
 
 static void beiscsi_clean_port(struct beiscsi_hba *phba)
 {
-	int mgmt_status;
+	int mgmt_status, ulp_num;
+	struct ulp_cid_info *ptr_cid_info = NULL;
 
 	mgmt_status = mgmt_epfw_cleanup(phba, CMD_CONNECTION_CHUTE_0);
 	if (mgmt_status)
@@ -4384,9 +4442,21 @@ static void beiscsi_clean_port(struct beiscsi_hba *phba)
 	hwi_cleanup(phba);
 	kfree(phba->io_sgl_hndl_base);
 	kfree(phba->eh_sgl_hndl_base);
-	kfree(phba->cid_array);
 	kfree(phba->ep_array);
 	kfree(phba->conn_table);
+
+	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+		if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
+			ptr_cid_info = phba->cid_array_info[ulp_num];
+
+			if (ptr_cid_info) {
+				kfree(ptr_cid_info->cid_array);
+				kfree(ptr_cid_info);
+				phba->cid_array_info[ulp_num] = NULL;
+			}
+		}
+	}
+
 }
 
 /**
diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
index 410efc72bfd9..e5e0d7e32f04 100644
--- a/drivers/scsi/be2iscsi/be_main.h
+++ b/drivers/scsi/be2iscsi/be_main.h
@@ -297,6 +297,13 @@ struct hwi_wrb_context {
 	uint32_t doorbell_offset;
 };
 
+struct ulp_cid_info {
+	unsigned short *cid_array;
+	unsigned short avlbl_cids;
+	unsigned short cid_alloc;
+	unsigned short cid_free;
+};
+
 #include "be.h"
 #define chip_be2(phba)      (phba->generation == BE_GEN2)
 #define chip_be3_r(phba)    (phba->generation == BE_GEN3)
@@ -307,6 +314,14 @@ struct hwi_wrb_context {
 #define BEISCSI_ULP_COUNT   2
 #define BEISCSI_ULP0_LOADED 0x01
 #define BEISCSI_ULP1_LOADED 0x02
+
+#define BEISCSI_ULP_AVLBL_CID(phba, ulp_num) \
+	(((struct ulp_cid_info *)phba->cid_array_info[ulp_num])->avlbl_cids)
+#define BEISCSI_ULP0_AVLBL_CID(phba) \
+	BEISCSI_ULP_AVLBL_CID(phba, BEISCSI_ULP0)
+#define BEISCSI_ULP1_AVLBL_CID(phba) \
+	BEISCSI_ULP_AVLBL_CID(phba, BEISCSI_ULP1)
+
 struct beiscsi_hba {
 	struct hba_parameters params;
 	struct hwi_controller *phwi_ctrlr;
@@ -343,16 +358,13 @@ struct beiscsi_hba {
 	spinlock_t isr_lock;
 	spinlock_t async_pdu_lock;
 	unsigned int age;
-	unsigned short avlbl_cids;
-	unsigned short cid_alloc;
-	unsigned short cid_free;
 	struct list_head hba_queue;
 #define BE_MAX_SESSION 2048
 #define BE_SET_CID_TO_CRI(cri_index, cid) \
 			  (phba->cid_to_cri_map[cid] = cri_index)
 #define BE_GET_CRI_FROM_CID(cid) (phba->cid_to_cri_map[cid])
 	unsigned short cid_to_cri_map[BE_MAX_SESSION];
-	unsigned short *cid_array;
+	struct ulp_cid_info *cid_array_info[BEISCSI_ULP_COUNT];
 	struct iscsi_endpoint **ep_array;
 	struct beiscsi_conn **conn_table;
 	struct iscsi_boot_kset *boot_kset;
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index 75756d722538..fcb9976e5ec6 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -1338,9 +1338,21 @@ beiscsi_active_cid_disp(struct device *dev, struct device_attribute *attr,
 {
 	struct Scsi_Host *shost = class_to_shost(dev);
 	struct beiscsi_hba *phba = iscsi_host_priv(shost);
+	uint16_t avlbl_cids = 0, ulp_num, len = 0, total_cids = 0;
+
+	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+		if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
+			avlbl_cids = BEISCSI_ULP_AVLBL_CID(phba, ulp_num);
+			total_cids = BEISCSI_GET_CID_COUNT(phba, ulp_num);
+			len += snprintf(buf+len, PAGE_SIZE - len,
+					"ULP%d : %d\n", ulp_num,
+					(total_cids - avlbl_cids));
+		} else
+			len += snprintf(buf+len, PAGE_SIZE - len,
+					"ULP%d : %d\n", ulp_num, 0);
+	}
 
-	return snprintf(buf, PAGE_SIZE, "%d\n",
-		       (phba->params.cxns_per_ctrl - phba->avlbl_cids));
+	return len;
 }
 
 /**
-- 
cgit 


From 1e4be6ff41573139620080268a1aa6d1d8726358 Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:50 -0700
Subject: [SCSI] be2iscsi: Fix connection offload to support Dual Chute.

The connection is offload to each chute in a round-robin manner
if both the chute is loaded with iSCSI protocol

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_iscsi.c |  6 ++++++
 drivers/scsi/be2iscsi/be_main.c  | 13 ++++++++-----
 drivers/scsi/be2iscsi/be_main.h  |  1 +
 drivers/scsi/be2iscsi/be_mgmt.c  | 19 ++++++++++++++++---
 4 files changed, 31 insertions(+), 8 deletions(-)

diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c
index 63b2be0f58a8..a7cd92c3c383 100644
--- a/drivers/scsi/be2iscsi/be_iscsi.c
+++ b/drivers/scsi/be2iscsi/be_iscsi.c
@@ -194,6 +194,8 @@ int beiscsi_conn_bind(struct iscsi_cls_session *cls_session,
 	struct beiscsi_conn *beiscsi_conn = conn->dd_data;
 	struct Scsi_Host *shost = iscsi_session_to_shost(cls_session);
 	struct beiscsi_hba *phba = iscsi_host_priv(shost);
+	struct hwi_controller *phwi_ctrlr = phba->phwi_ctrlr;
+	struct hwi_wrb_context *pwrb_context;
 	struct beiscsi_endpoint *beiscsi_ep;
 	struct iscsi_endpoint *ep;
 
@@ -214,9 +216,13 @@ int beiscsi_conn_bind(struct iscsi_cls_session *cls_session,
 		return -EEXIST;
 	}
 
+	pwrb_context = &phwi_ctrlr->wrb_context[BE_GET_CRI_FROM_CID(
+						beiscsi_ep->ep_cid)];
+
 	beiscsi_conn->beiscsi_conn_cid = beiscsi_ep->ep_cid;
 	beiscsi_conn->ep = beiscsi_ep;
 	beiscsi_ep->conn = beiscsi_conn;
+	beiscsi_conn->doorbell_offset = pwrb_context->doorbell_offset;
 
 	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
 		    "BS_%d : beiscsi_conn=%p conn=%p ep_cid=%d\n",
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index b57e5bd62018..d539b17e4a80 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -4585,8 +4585,8 @@ beiscsi_offload_connection(struct beiscsi_conn *beiscsi_conn,
 	doorbell |= (pwrb_handle->wrb_index & DB_DEF_PDU_WRB_INDEX_MASK)
 			     << DB_DEF_PDU_WRB_INDEX_SHIFT;
 	doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
-
-	iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET);
+	iowrite32(doorbell, phba->db_va +
+		  beiscsi_conn->doorbell_offset);
 }
 
 static void beiscsi_parse_pdu(struct iscsi_conn *conn, itt_t itt,
@@ -4811,7 +4811,8 @@ int beiscsi_iotask_v2(struct iscsi_task *task, struct scatterlist *sg,
 		     DB_DEF_PDU_WRB_INDEX_MASK) <<
 		     DB_DEF_PDU_WRB_INDEX_SHIFT;
 	doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
-	iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET);
+	iowrite32(doorbell, phba->db_va +
+		  beiscsi_conn->doorbell_offset);
 	return 0;
 }
 
@@ -4866,7 +4867,8 @@ static int beiscsi_iotask(struct iscsi_task *task, struct scatterlist *sg,
 		     DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT;
 	doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
 
-	iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET);
+	iowrite32(doorbell, phba->db_va +
+		  beiscsi_conn->doorbell_offset);
 	return 0;
 }
 
@@ -4968,7 +4970,8 @@ static int beiscsi_mtask(struct iscsi_task *task)
 	doorbell |= (io_task->pwrb_handle->wrb_index &
 		     DB_DEF_PDU_WRB_INDEX_MASK) << DB_DEF_PDU_WRB_INDEX_SHIFT;
 	doorbell |= 1 << DB_DEF_PDU_NUM_POSTED_SHIFT;
-	iowrite32(doorbell, phba->db_va + DB_TXULP0_OFFSET);
+	iowrite32(doorbell, phba->db_va +
+		  beiscsi_conn->doorbell_offset);
 	return 0;
 }
 
diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
index e5e0d7e32f04..3fa1e819f42d 100644
--- a/drivers/scsi/be2iscsi/be_main.h
+++ b/drivers/scsi/be2iscsi/be_main.h
@@ -425,6 +425,7 @@ struct beiscsi_conn {
 	struct iscsi_conn *conn;
 	struct beiscsi_hba *phba;
 	u32 exp_statsn;
+	u32 doorbell_offset;
 	u32 beiscsi_conn_cid;
 	struct beiscsi_endpoint *ep;
 	unsigned short login_in_progress;
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index fcb9976e5ec6..bcddc9fb23a2 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -628,6 +628,16 @@ unsigned int mgmt_upload_connection(struct beiscsi_hba *phba,
 	return tag;
 }
 
+/**
+ * mgmt_open_connection()- Establish a TCP CXN
+ * @dst_addr: Destination Address
+ * @beiscsi_ep: ptr to device endpoint struct
+ * @nonemb_cmd: ptr to memory allocated for command
+ *
+ * return
+ *	Success: Tag number of the MBX Command issued
+ *	Failure: Error code
+ **/
 int mgmt_open_connection(struct beiscsi_hba *phba,
 			 struct sockaddr *dst_addr,
 			 struct beiscsi_endpoint *beiscsi_ep,
@@ -645,14 +655,17 @@ int mgmt_open_connection(struct beiscsi_hba *phba,
 	struct phys_addr template_address = { 0, 0 };
 	struct phys_addr *ptemplate_address;
 	unsigned int tag = 0;
-	unsigned int i;
+	unsigned int i, ulp_num;
 	unsigned short cid = beiscsi_ep->ep_cid;
 	struct be_sge *sge;
 
 	phwi_ctrlr = phba->phwi_ctrlr;
 	phwi_context = phwi_ctrlr->phwi_ctxt;
-	def_hdr_id = (unsigned short)HWI_GET_DEF_HDRQ_ID(phba, 0);
-	def_data_id = (unsigned short)HWI_GET_DEF_BUFQ_ID(phba, 0);
+
+	ulp_num = phwi_ctrlr->wrb_context[BE_GET_CRI_FROM_CID(cid)].ulp_num;
+
+	def_hdr_id = (unsigned short)HWI_GET_DEF_HDRQ_ID(phba, ulp_num);
+	def_data_id = (unsigned short)HWI_GET_DEF_BUFQ_ID(phba, ulp_num);
 
 	ptemplate_address = &template_address;
 	ISCSI_GET_PDU_TEMPLATE_ADDRESS(phba, ptemplate_address);
-- 
cgit 


From bd41c2bd86000514cf199891dabff86599796c0c Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:51 -0700
Subject: [SCSI] be2iscsi: Fix chute cleanup during drivers unload.

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_main.c | 14 ++++++++++----
 drivers/scsi/be2iscsi/be_mgmt.c | 17 +++++++++++++----
 2 files changed, 23 insertions(+), 8 deletions(-)

diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index d539b17e4a80..b323569e5eb3 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -4433,10 +4433,16 @@ static void beiscsi_clean_port(struct beiscsi_hba *phba)
 	int mgmt_status, ulp_num;
 	struct ulp_cid_info *ptr_cid_info = NULL;
 
-	mgmt_status = mgmt_epfw_cleanup(phba, CMD_CONNECTION_CHUTE_0);
-	if (mgmt_status)
-		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
-			    "BM_%d : mgmt_epfw_cleanup FAILED\n");
+	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+		if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported)) {
+			mgmt_status = mgmt_epfw_cleanup(phba, ulp_num);
+			if (mgmt_status)
+				beiscsi_log(phba, KERN_WARNING,
+					    BEISCSI_LOG_INIT,
+					    "BM_%d : mgmt_epfw_cleanup FAILED"
+					    " for ULP_%d\n", ulp_num);
+		}
+	}
 
 	hwi_purge_eq(phba);
 	hwi_cleanup(phba);
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index bcddc9fb23a2..a542bbbdb06e 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -491,7 +491,16 @@ unsigned int mgmt_vendor_specific_fw_cmd(struct be_ctrl_info *ctrl,
 	return tag;
 }
 
-int mgmt_epfw_cleanup(struct beiscsi_hba *phba, unsigned short chute)
+/**
+ * mgmt_epfw_cleanup()- Inform FW to cleanup data structures.
+ * @phba: pointer to dev priv structure
+ * @ulp_num: ULP number.
+ *
+ * return
+ *	Success: 0
+ *	Failure: Non-Zero Value
+ **/
+int mgmt_epfw_cleanup(struct beiscsi_hba *phba, unsigned short ulp_num)
 {
 	struct be_ctrl_info *ctrl = &phba->ctrl;
 	struct be_mcc_wrb *wrb = wrb_from_mccq(phba);
@@ -505,9 +514,9 @@ int mgmt_epfw_cleanup(struct beiscsi_hba *phba, unsigned short chute)
 	be_cmd_hdr_prepare(&req->hdr, CMD_SUBSYSTEM_ISCSI,
 			   OPCODE_COMMON_ISCSI_CLEANUP, sizeof(*req));
 
-	req->chute = chute;
-	req->hdr_ring_id = cpu_to_le16(HWI_GET_DEF_HDRQ_ID(phba, 0));
-	req->data_ring_id = cpu_to_le16(HWI_GET_DEF_BUFQ_ID(phba, 0));
+	req->chute = (1 << ulp_num);
+	req->hdr_ring_id = cpu_to_le16(HWI_GET_DEF_HDRQ_ID(phba, ulp_num));
+	req->data_ring_id = cpu_to_le16(HWI_GET_DEF_BUFQ_ID(phba, ulp_num));
 
 	status =  be_mcc_notify_wait(phba);
 	if (status)
-- 
cgit 


From 6103c1f7c750b701cca4662b1c0dc66c2dc49dad Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:52 -0700
Subject: [SCSI] be2iscsi: Dispaly CID available for connection offload

Display CID available on each iSCSI Fn which can be used to
offload a connection. The display is split across available CID
on each chute.

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_main.c |  8 ++++++--
 drivers/scsi/be2iscsi/be_mgmt.c | 34 ++++++++++++++++++++++++++++++++--
 drivers/scsi/be2iscsi/be_mgmt.h |  8 ++++++--
 3 files changed, 44 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index b323569e5eb3..005ea62c3369 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -154,13 +154,17 @@ BEISCSI_RW_ATTR(log_enable, 0x00,
 DEVICE_ATTR(beiscsi_drvr_ver, S_IRUGO, beiscsi_drvr_ver_disp, NULL);
 DEVICE_ATTR(beiscsi_adapter_family, S_IRUGO, beiscsi_adap_family_disp, NULL);
 DEVICE_ATTR(beiscsi_fw_ver, S_IRUGO, beiscsi_fw_ver_disp, NULL);
-DEVICE_ATTR(beiscsi_active_cid_count, S_IRUGO, beiscsi_active_cid_disp, NULL);
+DEVICE_ATTR(beiscsi_active_session_count, S_IRUGO,
+	     beiscsi_active_session_disp, NULL);
+DEVICE_ATTR(beiscsi_free_session_count, S_IRUGO,
+	     beiscsi_free_session_disp, NULL);
 struct device_attribute *beiscsi_attrs[] = {
 	&dev_attr_beiscsi_log_enable,
 	&dev_attr_beiscsi_drvr_ver,
 	&dev_attr_beiscsi_adapter_family,
 	&dev_attr_beiscsi_fw_ver,
-	&dev_attr_beiscsi_active_cid_count,
+	&dev_attr_beiscsi_active_session_count,
+	&dev_attr_beiscsi_free_session_count,
 	NULL,
 };
 
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index a542bbbdb06e..896e21f6047f 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -1346,7 +1346,7 @@ beiscsi_fw_ver_disp(struct device *dev, struct device_attribute *attr,
 }
 
 /**
- * beiscsi_active_cid_disp()- Display Sessions Active
+ * beiscsi_active_session_disp()- Display Sessions Active
  * @dev: ptr to device not used.
  * @attr: device attribute, not used.
  * @buf: contains formatted text Session Count
@@ -1355,7 +1355,7 @@ beiscsi_fw_ver_disp(struct device *dev, struct device_attribute *attr,
  * size of the formatted string
  **/
 ssize_t
-beiscsi_active_cid_disp(struct device *dev, struct device_attribute *attr,
+beiscsi_active_session_disp(struct device *dev, struct device_attribute *attr,
 			 char *buf)
 {
 	struct Scsi_Host *shost = class_to_shost(dev);
@@ -1377,6 +1377,36 @@ beiscsi_active_cid_disp(struct device *dev, struct device_attribute *attr,
 	return len;
 }
 
+/**
+ * beiscsi_free_session_disp()- Display Avaliable Session
+ * @dev: ptr to device not used.
+ * @attr: device attribute, not used.
+ * @buf: contains formatted text Session Count
+ *
+ * return
+ * size of the formatted string
+ **/
+ssize_t
+beiscsi_free_session_disp(struct device *dev, struct device_attribute *attr,
+		       char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(dev);
+	struct beiscsi_hba *phba = iscsi_host_priv(shost);
+	uint16_t ulp_num, len = 0;
+
+	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+		if (test_bit(ulp_num, (void *)&phba->fw_config.ulp_supported))
+			len += snprintf(buf+len, PAGE_SIZE - len,
+					"ULP%d : %d\n", ulp_num,
+					BEISCSI_ULP_AVLBL_CID(phba, ulp_num));
+		else
+			len += snprintf(buf+len, PAGE_SIZE - len,
+					"ULP%d : %d\n", ulp_num, 0);
+	}
+
+	return len;
+}
+
 /**
  * beiscsi_adap_family_disp()- Display adapter family.
  * @dev: ptr to device to get priv structure
diff --git a/drivers/scsi/be2iscsi/be_mgmt.h b/drivers/scsi/be2iscsi/be_mgmt.h
index 04af7e74fe48..9107ecf84ab2 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.h
+++ b/drivers/scsi/be2iscsi/be_mgmt.h
@@ -315,12 +315,16 @@ ssize_t beiscsi_drvr_ver_disp(struct device *dev,
 ssize_t beiscsi_fw_ver_disp(struct device *dev,
 			     struct device_attribute *attr, char *buf);
 
-ssize_t beiscsi_active_cid_disp(struct device *dev,
-				 struct device_attribute *attr, char *buf);
+ssize_t beiscsi_active_session_disp(struct device *dev,
+				     struct device_attribute *attr, char *buf);
 
 ssize_t beiscsi_adap_family_disp(struct device *dev,
 				  struct device_attribute *attr, char *buf);
 
+
+ssize_t beiscsi_free_session_disp(struct device *dev,
+				   struct device_attribute *attr, char *buf);
+
 void beiscsi_offload_cxn_v0(struct beiscsi_offload_params *params,
 			     struct wrb_handle *pwrb_handle,
 			     struct be_mem_descriptor *mem_descr);
-- 
cgit 


From d3fea9af00fc69f60a792f5e0ea1e51fabd7c633 Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:53 -0700
Subject: [SCSI] be2iscsi: Display Port Identifier for each iSCSI function

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_main.c |  2 ++
 drivers/scsi/be2iscsi/be_mgmt.c | 19 +++++++++++++++++++
 drivers/scsi/be2iscsi/be_mgmt.h |  3 +++
 3 files changed, 24 insertions(+)

diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 005ea62c3369..de948d36fb15 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -154,6 +154,7 @@ BEISCSI_RW_ATTR(log_enable, 0x00,
 DEVICE_ATTR(beiscsi_drvr_ver, S_IRUGO, beiscsi_drvr_ver_disp, NULL);
 DEVICE_ATTR(beiscsi_adapter_family, S_IRUGO, beiscsi_adap_family_disp, NULL);
 DEVICE_ATTR(beiscsi_fw_ver, S_IRUGO, beiscsi_fw_ver_disp, NULL);
+DEVICE_ATTR(beiscsi_phys_port, S_IRUGO, beiscsi_phys_port_disp, NULL);
 DEVICE_ATTR(beiscsi_active_session_count, S_IRUGO,
 	     beiscsi_active_session_disp, NULL);
 DEVICE_ATTR(beiscsi_free_session_count, S_IRUGO,
@@ -165,6 +166,7 @@ struct device_attribute *beiscsi_attrs[] = {
 	&dev_attr_beiscsi_fw_ver,
 	&dev_attr_beiscsi_active_session_count,
 	&dev_attr_beiscsi_free_session_count,
+	&dev_attr_beiscsi_phys_port,
 	NULL,
 };
 
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index 896e21f6047f..7b0b13f69b69 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -1445,6 +1445,25 @@ beiscsi_adap_family_disp(struct device *dev, struct device_attribute *attr,
 	}
 }
 
+/**
+ * beiscsi_phys_port()- Display Physical Port Identifier
+ * @dev: ptr to device not used.
+ * @attr: device attribute, not used.
+ * @buf: contains formatted text port identifier
+ *
+ * return
+ * size of the formatted string
+ **/
+ssize_t
+beiscsi_phys_port_disp(struct device *dev, struct device_attribute *attr,
+			 char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(dev);
+	struct beiscsi_hba *phba = iscsi_host_priv(shost);
+
+	return snprintf(buf, PAGE_SIZE, "Port Identifier : %d\n",
+			phba->fw_config.phys_port);
+}
 
 void beiscsi_offload_cxn_v0(struct beiscsi_offload_params *params,
 			     struct wrb_handle *pwrb_handle,
diff --git a/drivers/scsi/be2iscsi/be_mgmt.h b/drivers/scsi/be2iscsi/be_mgmt.h
index 9107ecf84ab2..645e144622c9 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.h
+++ b/drivers/scsi/be2iscsi/be_mgmt.h
@@ -325,6 +325,9 @@ ssize_t beiscsi_adap_family_disp(struct device *dev,
 ssize_t beiscsi_free_session_disp(struct device *dev,
 				   struct device_attribute *attr, char *buf);
 
+ssize_t beiscsi_phys_port_disp(struct device *dev,
+				struct device_attribute *attr, char *buf);
+
 void beiscsi_offload_cxn_v0(struct beiscsi_offload_params *params,
 			     struct wrb_handle *pwrb_handle,
 			     struct be_mem_descriptor *mem_descr);
-- 
cgit 


From 68c26a3afc6693d08181c1757f943bd005d03c2f Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:54 -0700
Subject: [SCSI] be2iscsi: Fix MSIx creation for SKH-R adapter

The MSIx to be created for SKH-R adapter should be based on
eq_count returned by get_fw_config.

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_main.c | 45 ++++++++++++++++++++++++++---------------
 drivers/scsi/be2iscsi/be_main.h |  3 ++-
 drivers/scsi/be2iscsi/be_mgmt.c | 11 ++++++++++
 3 files changed, 42 insertions(+), 17 deletions(-)

diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index de948d36fb15..ddacd2c99079 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -3758,8 +3758,19 @@ static void find_num_cpus(struct beiscsi_hba *phba)
 				  BEISCSI_MAX_NUM_CPUS : num_cpus;
 		break;
 	case BE_GEN4:
-		phba->num_cpus = (num_cpus > OC_SKH_MAX_NUM_CPUS) ?
-				  OC_SKH_MAX_NUM_CPUS : num_cpus;
+		/*
+		 * If eqid_count == 1 fall back to
+		 * INTX mechanism
+		 **/
+		if (phba->fw_config.eqid_count == 1) {
+			enable_msix = 0;
+			phba->num_cpus = 1;
+			return;
+		}
+
+		phba->num_cpus =
+			(num_cpus > (phba->fw_config.eqid_count - 1)) ?
+			(phba->fw_config.eqid_count - 1) : num_cpus;
 		break;
 	default:
 		phba->num_cpus = 1;
@@ -5275,20 +5286,6 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev,
 		phba->generation = 0;
 	}
 
-	if (enable_msix)
-		find_num_cpus(phba);
-	else
-		phba->num_cpus = 1;
-
-	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
-		    "BM_%d : num_cpus = %d\n",
-		    phba->num_cpus);
-
-	if (enable_msix) {
-		beiscsi_msix_enable(phba);
-		if (!phba->msix_enabled)
-			phba->num_cpus = 1;
-	}
 	ret = be_ctrl_init(phba, pcidev);
 	if (ret) {
 		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
@@ -5320,6 +5317,22 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev,
 			    "BM_%d : Error getting fw config\n");
 		goto free_port;
 	}
+
+	if (enable_msix)
+		find_num_cpus(phba);
+	else
+		phba->num_cpus = 1;
+
+	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+		    "BM_%d : num_cpus = %d\n",
+		    phba->num_cpus);
+
+	if (enable_msix) {
+		beiscsi_msix_enable(phba);
+		if (!phba->msix_enabled)
+			phba->num_cpus = 1;
+	}
+
 	phba->shost->max_id = phba->params.cxns_per_ctrl;
 	beiscsi_get_params(phba);
 	phba->shost->can_queue = phba->params.ios_per_ctrl;
diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
index 3fa1e819f42d..88291b0051bf 100644
--- a/drivers/scsi/be2iscsi/be_main.h
+++ b/drivers/scsi/be2iscsi/be_main.h
@@ -65,7 +65,6 @@
 
 #define MAX_CPUS		64
 #define BEISCSI_MAX_NUM_CPUS	7
-#define OC_SKH_MAX_NUM_CPUS	31
 
 #define BEISCSI_VER_STRLEN 32
 
@@ -377,6 +376,8 @@ struct beiscsi_hba {
 		 * for cid to cri conversion
 		 */
 		unsigned int phys_port;
+		unsigned int eqid_count;
+		unsigned int cqid_count;
 		unsigned int iscsi_cid_start[BEISCSI_ULP_COUNT];
 #define BEISCSI_GET_CID_COUNT(phba, ulp_num) \
 		(phba->fw_config.iscsi_cid_count[ulp_num])
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index 7b0b13f69b69..befeace18257 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -311,6 +311,17 @@ int mgmt_get_fw_config(struct be_ctrl_info *ctrl,
 		struct be_fw_cfg *pfw_cfg;
 		pfw_cfg = req;
 
+		if (!is_chip_be2_be3r(phba)) {
+			phba->fw_config.eqid_count = pfw_cfg->eqid_count;
+			phba->fw_config.cqid_count = pfw_cfg->cqid_count;
+
+			beiscsi_log(phba, KERN_INFO,
+				    BEISCSI_LOG_INIT,
+				    "BG_%d : EQ_Count : %d CQ_Count : %d\n",
+				    phba->fw_config.eqid_count,
+				    phba->fw_config.cqid_count);
+		}
+
 		for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
 			if (pfw_cfg->ulp[ulp_num].ulp_mode &
 			    BEISCSI_ULP_ISCSI_INI_MODE)
-- 
cgit 


From afb9605844d117276532aabc5087e9fc3c0a08d2 Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:55 -0700
Subject: [SCSI] be2iscsi: Fix log level for protocol specific logs

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_main.c | 11 ++++++++---
 drivers/scsi/be2iscsi/be_main.h |  1 +
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index ddacd2c99079..7e470a322e35 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -149,7 +149,8 @@ BEISCSI_RW_ATTR(log_enable, 0x00,
 		"\t\t\t\tMiscellaneous Events	: 0x04\n"
 		"\t\t\t\tError Handling		: 0x08\n"
 		"\t\t\t\tIO Path Events		: 0x10\n"
-		"\t\t\t\tConfiguration Path	: 0x20\n");
+		"\t\t\t\tConfiguration Path	: 0x20\n"
+		"\t\t\t\tiSCSI Protocol		: 0x40\n");
 
 DEVICE_ATTR(beiscsi_drvr_ver, S_IRUGO, beiscsi_drvr_ver_disp, NULL);
 DEVICE_ATTR(beiscsi_adapter_family, S_IRUGO, beiscsi_adap_family_disp, NULL);
@@ -5019,8 +5020,12 @@ static int beiscsi_task_xmit(struct iscsi_task *task)
 		struct beiscsi_hba *phba = NULL;
 
 		phba = ((struct beiscsi_conn *)conn->dd_data)->phba;
-		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_IO,
-			    "BM_%d : scsi_dma_map Failed\n");
+		beiscsi_log(phba, KERN_ERR,
+			    BEISCSI_LOG_IO | BEISCSI_LOG_ISCSI,
+			    "BM_%d : scsi_dma_map Failed "
+			    "Driver_ITT : 0x%x ITT : 0x%x Xferlen : 0x%x\n",
+			    be32_to_cpu(io_task->cmd_bhs->iscsi_hdr.itt),
+			    io_task->libiscsi_itt, scsi_bufflen(sc));
 
 		return num_sg;
 	}
diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
index 88291b0051bf..a8ae6b82c3e1 100644
--- a/drivers/scsi/be2iscsi/be_main.h
+++ b/drivers/scsi/be2iscsi/be_main.h
@@ -1040,6 +1040,7 @@ struct hwi_context_memory {
 #define BEISCSI_LOG_EH		0x0008	/* Error Handler */
 #define BEISCSI_LOG_IO		0x0010	/* IO Code Path */
 #define BEISCSI_LOG_CONFIG	0x0020	/* CONFIG Code Path */
+#define BEISCSI_LOG_ISCSI	0x0040	/* SCSI/iSCSI Protocol related Logs */
 
 #define beiscsi_log(phba, level, mask, fmt, arg...) \
 do { \
-- 
cgit 


From 1f536d49cba96fa2f1ac47d267ff5d30a586e04c Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:56 -0700
Subject: [SCSI] be2iscsi: Fix Insufficient Buffer Error returned in MBX
 Completion

When MBX_Cmd completion happens with error code Insufficient Buffer,
the MBX_Cmd is posted again with the new buffer size posted by FW.

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_cmds.c  | 20 +++++++---
 drivers/scsi/be2iscsi/be_iscsi.c | 37 ++++++++++--------
 drivers/scsi/be2iscsi/be_mgmt.c  | 83 ++++++++++++++++++++++++++++++----------
 drivers/scsi/be2iscsi/be_mgmt.h  |  2 +-
 4 files changed, 99 insertions(+), 43 deletions(-)

diff --git a/drivers/scsi/be2iscsi/be_cmds.c b/drivers/scsi/be2iscsi/be_cmds.c
index cc37a4e5ce45..fce298ba4b41 100644
--- a/drivers/scsi/be2iscsi/be_cmds.c
+++ b/drivers/scsi/be2iscsi/be_cmds.c
@@ -158,8 +158,10 @@ int beiscsi_mccq_compl(struct beiscsi_hba *phba,
 	struct be_cmd_resp_hdr *ioctl_resp_hdr;
 	struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q;
 
-	if (beiscsi_error(phba))
+	if (beiscsi_error(phba)) {
+		free_mcc_tag(&phba->ctrl, tag);
 		return -EIO;
+	}
 
 	/* wait for the mccq completion */
 	rc = wait_event_interruptible_timeout(
@@ -173,7 +175,7 @@ int beiscsi_mccq_compl(struct beiscsi_hba *phba,
 			    BEISCSI_LOG_INIT | BEISCSI_LOG_EH |
 			    BEISCSI_LOG_CONFIG,
 			    "BC_%d : MBX Cmd Completion timed out\n");
-		rc = -EAGAIN;
+		rc = -EBUSY;
 
 		/* decrement the mccq used count */
 		atomic_dec(&phba->ctrl.mcc_obj.q.used);
@@ -212,10 +214,18 @@ int beiscsi_mccq_compl(struct beiscsi_hba *phba,
 
 		if (status == MCC_STATUS_INSUFFICIENT_BUFFER) {
 			ioctl_resp_hdr = (struct be_cmd_resp_hdr *) ioctl_hdr;
-			if (ioctl_resp_hdr->response_length)
-				goto release_mcc_tag;
+			beiscsi_log(phba, KERN_WARNING,
+				    BEISCSI_LOG_INIT | BEISCSI_LOG_EH |
+				    BEISCSI_LOG_CONFIG,
+				    "BC_%d : Insufficent Buffer Error "
+				    "Resp_Len : %d Actual_Resp_Len : %d\n",
+				    ioctl_resp_hdr->response_length,
+				    ioctl_resp_hdr->actual_resp_len);
+
+			rc = -EAGAIN;
+			goto release_mcc_tag;
 		}
-		rc = -EAGAIN;
+		rc = -EIO;
 	}
 
 release_mcc_tag:
diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c
index a7cd92c3c383..e82ab8124958 100644
--- a/drivers/scsi/be2iscsi/be_iscsi.c
+++ b/drivers/scsi/be2iscsi/be_iscsi.c
@@ -271,13 +271,17 @@ static int beiscsi_create_ipv6_iface(struct beiscsi_hba *phba)
 
 void beiscsi_create_def_ifaces(struct beiscsi_hba *phba)
 {
-	struct be_cmd_get_if_info_resp if_info;
+	struct be_cmd_get_if_info_resp *if_info;
 
-	if (!mgmt_get_if_info(phba, BE2_IPV4, &if_info))
+	if (!mgmt_get_if_info(phba, BE2_IPV4, &if_info)) {
 		beiscsi_create_ipv4_iface(phba);
+		kfree(if_info);
+	}
 
-	if (!mgmt_get_if_info(phba, BE2_IPV6, &if_info))
+	if (!mgmt_get_if_info(phba, BE2_IPV6, &if_info)) {
 		beiscsi_create_ipv6_iface(phba);
+		kfree(if_info);
+	}
 }
 
 void beiscsi_destroy_def_ifaces(struct beiscsi_hba *phba)
@@ -518,59 +522,60 @@ static int be2iscsi_get_if_param(struct beiscsi_hba *phba,
 		struct iscsi_iface *iface, int param,
 		char *buf)
 {
-	struct be_cmd_get_if_info_resp if_info;
+	struct be_cmd_get_if_info_resp *if_info;
 	int len, ip_type = BE2_IPV4;
 
-	memset(&if_info, 0, sizeof(if_info));
-
 	if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
 		ip_type = BE2_IPV6;
 
 	len = mgmt_get_if_info(phba, ip_type, &if_info);
-	if (len)
+	if (len) {
+		kfree(if_info);
 		return len;
+	}
 
 	switch (param) {
 	case ISCSI_NET_PARAM_IPV4_ADDR:
-		len = sprintf(buf, "%pI4\n", &if_info.ip_addr.addr);
+		len = sprintf(buf, "%pI4\n", if_info->ip_addr.addr);
 		break;
 	case ISCSI_NET_PARAM_IPV6_ADDR:
-		len = sprintf(buf, "%pI6\n", &if_info.ip_addr.addr);
+		len = sprintf(buf, "%pI6\n", if_info->ip_addr.addr);
 		break;
 	case ISCSI_NET_PARAM_IPV4_BOOTPROTO:
-		if (!if_info.dhcp_state)
+		if (!if_info->dhcp_state)
 			len = sprintf(buf, "static\n");
 		else
 			len = sprintf(buf, "dhcp\n");
 		break;
 	case ISCSI_NET_PARAM_IPV4_SUBNET:
-		len = sprintf(buf, "%pI4\n", &if_info.ip_addr.subnet_mask);
+		len = sprintf(buf, "%pI4\n", if_info->ip_addr.subnet_mask);
 		break;
 	case ISCSI_NET_PARAM_VLAN_ENABLED:
 		len = sprintf(buf, "%s\n",
-			     (if_info.vlan_priority == BEISCSI_VLAN_DISABLE)
+			     (if_info->vlan_priority == BEISCSI_VLAN_DISABLE)
 			     ? "Disabled\n" : "Enabled\n");
 		break;
 	case ISCSI_NET_PARAM_VLAN_ID:
-		if (if_info.vlan_priority == BEISCSI_VLAN_DISABLE)
+		if (if_info->vlan_priority == BEISCSI_VLAN_DISABLE)
 			return -EINVAL;
 		else
 			len = sprintf(buf, "%d\n",
-				     (if_info.vlan_priority &
+				     (if_info->vlan_priority &
 				     ISCSI_MAX_VLAN_ID));
 		break;
 	case ISCSI_NET_PARAM_VLAN_PRIORITY:
-		if (if_info.vlan_priority == BEISCSI_VLAN_DISABLE)
+		if (if_info->vlan_priority == BEISCSI_VLAN_DISABLE)
 			return -EINVAL;
 		else
 			len = sprintf(buf, "%d\n",
-				     ((if_info.vlan_priority >> 13) &
+				     ((if_info->vlan_priority >> 13) &
 				     ISCSI_MAX_VLAN_PRIORITY));
 		break;
 	default:
 		WARN_ON(1);
 	}
 
+	kfree(if_info);
 	return len;
 }
 
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index befeace18257..1f2b546a3fc4 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -824,11 +824,14 @@ static int mgmt_exec_nonemb_cmd(struct beiscsi_hba *phba,
 
 	rc = beiscsi_mccq_compl(phba, tag, NULL, nonemb_cmd->va);
 	if (rc) {
+		/* Check if the IOCTL needs to be re-issued */
+		if (rc == -EAGAIN)
+			return rc;
+
 		beiscsi_log(phba, KERN_ERR,
 			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_MBOX,
 			    "BG_%d : mgmt_exec_nonemb_cmd Failed status\n");
 
-		rc = -EIO;
 		goto free_cmd;
 	}
 
@@ -937,7 +940,7 @@ int mgmt_set_ip(struct beiscsi_hba *phba,
 		uint32_t boot_proto)
 {
 	struct be_cmd_get_def_gateway_resp gtway_addr_set;
-	struct be_cmd_get_if_info_resp if_info;
+	struct be_cmd_get_if_info_resp *if_info;
 	struct be_cmd_set_dhcp_req *dhcpreq;
 	struct be_cmd_rel_dhcp_req *reldhcp;
 	struct be_dma_mem nonemb_cmd;
@@ -948,16 +951,17 @@ int mgmt_set_ip(struct beiscsi_hba *phba,
 	if (mgmt_get_all_if_id(phba))
 		return -EIO;
 
-	memset(&if_info, 0, sizeof(if_info));
 	ip_type = (ip_param->param == ISCSI_NET_PARAM_IPV6_ADDR) ?
 		BE2_IPV6 : BE2_IPV4 ;
 
 	rc = mgmt_get_if_info(phba, ip_type, &if_info);
-	if (rc)
+	if (rc) {
+		kfree(if_info);
 		return rc;
+	}
 
 	if (boot_proto == ISCSI_BOOTPROTO_DHCP) {
-		if (if_info.dhcp_state) {
+		if (if_info->dhcp_state) {
 			beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
 				    "BG_%d : DHCP Already Enabled\n");
 			return 0;
@@ -970,9 +974,9 @@ int mgmt_set_ip(struct beiscsi_hba *phba,
 				IP_V6_LEN : IP_V4_LEN;
 
 	} else {
-		if (if_info.dhcp_state) {
+		if (if_info->dhcp_state) {
 
-			memset(&if_info, 0, sizeof(if_info));
+			memset(if_info, 0, sizeof(*if_info));
 			rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
 				OPCODE_COMMON_ISCSI_NTWK_REL_STATELESS_IP_ADDR,
 				sizeof(*reldhcp));
@@ -995,8 +999,8 @@ int mgmt_set_ip(struct beiscsi_hba *phba,
 	}
 
 	/* Delete the Static IP Set */
-	if (if_info.ip_addr.addr[0]) {
-		rc = mgmt_static_ip_modify(phba, &if_info, ip_param, NULL,
+	if (if_info->ip_addr.addr[0]) {
+		rc = mgmt_static_ip_modify(phba, if_info, ip_param, NULL,
 					   IP_ACTION_DEL);
 		if (rc)
 			return rc;
@@ -1042,7 +1046,7 @@ int mgmt_set_ip(struct beiscsi_hba *phba,
 
 		return mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, NULL, 0);
 	} else {
-		return mgmt_static_ip_modify(phba, &if_info, ip_param,
+		return mgmt_static_ip_modify(phba, if_info, ip_param,
 					     subnet_param, IP_ACTION_ADD);
 	}
 
@@ -1107,27 +1111,64 @@ int mgmt_get_gateway(struct beiscsi_hba *phba, int ip_type,
 }
 
 int mgmt_get_if_info(struct beiscsi_hba *phba, int ip_type,
-		     struct be_cmd_get_if_info_resp *if_info)
+		     struct be_cmd_get_if_info_resp **if_info)
 {
 	struct be_cmd_get_if_info_req *req;
 	struct be_dma_mem nonemb_cmd;
+	uint32_t ioctl_size = sizeof(struct be_cmd_get_if_info_resp);
 	int rc;
 
 	if (mgmt_get_all_if_id(phba))
 		return -EIO;
 
-	rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
-				 OPCODE_COMMON_ISCSI_NTWK_GET_IF_INFO,
-				 sizeof(*if_info));
-	if (rc)
-		return rc;
+	do {
+		rc = mgmt_alloc_cmd_data(phba, &nonemb_cmd,
+					 OPCODE_COMMON_ISCSI_NTWK_GET_IF_INFO,
+					 ioctl_size);
+		if (rc)
+			return rc;
 
-	req = nonemb_cmd.va;
-	req->interface_hndl = phba->interface_handle;
-	req->ip_type = ip_type;
+		req = nonemb_cmd.va;
+		req->interface_hndl = phba->interface_handle;
+		req->ip_type = ip_type;
+
+		/* Allocate memory for if_info */
+		*if_info = kzalloc(ioctl_size, GFP_KERNEL);
+		if (!*if_info) {
+			beiscsi_log(phba, KERN_ERR,
+				    BEISCSI_LOG_INIT | BEISCSI_LOG_CONFIG,
+				    "BG_%d : Memory Allocation Failure\n");
+
+				/* Free the DMA memory for the IOCTL issuing */
+				pci_free_consistent(phba->ctrl.pdev,
+						    nonemb_cmd.size,
+						    nonemb_cmd.va,
+						    nonemb_cmd.dma);
+				return -ENOMEM;
+		}
 
-	return mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, if_info,
-				    sizeof(*if_info));
+		rc =  mgmt_exec_nonemb_cmd(phba, &nonemb_cmd, *if_info,
+					   ioctl_size);
+
+		/* Check if the error is because of Insufficent_Buffer */
+		if (rc == -EAGAIN) {
+
+			/* Get the new memory size */
+			ioctl_size = ((struct be_cmd_resp_hdr *)
+				      nonemb_cmd.va)->actual_resp_len;
+			ioctl_size += sizeof(struct be_cmd_req_hdr);
+
+			/* Free the previous allocated DMA memory */
+			pci_free_consistent(phba->ctrl.pdev, nonemb_cmd.size,
+					    nonemb_cmd.va,
+					    nonemb_cmd.dma);
+
+			/* Free the virtual memory */
+			kfree(*if_info);
+		} else
+			break;
+	} while (true);
+	return rc;
 }
 
 int mgmt_get_nic_conf(struct beiscsi_hba *phba,
diff --git a/drivers/scsi/be2iscsi/be_mgmt.h b/drivers/scsi/be2iscsi/be_mgmt.h
index 645e144622c9..01b8c97284c0 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.h
+++ b/drivers/scsi/be2iscsi/be_mgmt.h
@@ -294,7 +294,7 @@ int mgmt_get_nic_conf(struct beiscsi_hba *phba,
 		      struct be_cmd_get_nic_conf_resp *mac);
 
 int mgmt_get_if_info(struct beiscsi_hba *phba, int ip_type,
-		     struct be_cmd_get_if_info_resp *if_info);
+		     struct be_cmd_get_if_info_resp **if_info);
 
 int mgmt_get_gateway(struct beiscsi_hba *phba, int ip_type,
 		     struct be_cmd_get_def_gateway_resp *gateway);
-- 
cgit 


From 7626c06b1b4d2fe0b71a6d3ceb14e68ab02a75a6 Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:57 -0700
Subject: [SCSI] be2iscsi: Invalidate WRB in Abort/Reset Path

When iSCSI stack invokes Abort or Reset handlers, the aborted tasks
Invalid Bit in WRB needs to be set. Else FW will not be aware of
the command invalidated which leads to BAD_WRB error posted by FW.

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_main.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 7e470a322e35..8f300534fc32 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -246,6 +246,11 @@ static int beiscsi_eh_abort(struct scsi_cmnd *sc)
 		return SUCCESS;
 	}
 	spin_unlock_bh(&session->lock);
+	/* Invalidate WRB Posted for this Task */
+	AMAP_SET_BITS(struct amap_iscsi_wrb, invld,
+		      aborted_io_task->pwrb_handle->pwrb,
+		      1);
+
 	conn = aborted_task->conn;
 	beiscsi_conn = conn->dd_data;
 	phba = beiscsi_conn->phba;
@@ -323,6 +328,11 @@ static int beiscsi_eh_device_reset(struct scsi_cmnd *sc)
 		if (abrt_task->sc->device->lun != abrt_task->sc->device->lun)
 			continue;
 
+		/* Invalidate WRB Posted for this Task */
+		AMAP_SET_BITS(struct amap_iscsi_wrb, invld,
+			      abrt_io_task->pwrb_handle->pwrb,
+			      1);
+
 		inv_tbl->cid = cid;
 		inv_tbl->icd = abrt_io_task->psgl_handle->sgl_index;
 		num_invalidate++;
-- 
cgit 


From 3567f36a09d1095bb0fb97aa686f7eabc64b45d9 Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:58 -0700
Subject: [SCSI] be2iscsi: Fix AER handling in driver

Signed-off-by: Minh Tran <minhduc.tran@emulex.com>
Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_cmds.c  |   2 +-
 drivers/scsi/be2iscsi/be_iscsi.c |  68 ++++++++++--
 drivers/scsi/be2iscsi/be_main.c  | 220 ++++++++++++++++++++++++++++++++++++---
 drivers/scsi/be2iscsi/be_main.h  |   9 +-
 4 files changed, 270 insertions(+), 29 deletions(-)

diff --git a/drivers/scsi/be2iscsi/be_cmds.c b/drivers/scsi/be2iscsi/be_cmds.c
index fce298ba4b41..3338391b64de 100644
--- a/drivers/scsi/be2iscsi/be_cmds.c
+++ b/drivers/scsi/be2iscsi/be_cmds.c
@@ -377,7 +377,7 @@ void beiscsi_async_link_state_process(struct beiscsi_hba *phba,
 	} else if ((evt->port_link_status & ASYNC_EVENT_LINK_UP) ||
 		    ((evt->port_link_status & ASYNC_EVENT_LOGICAL) &&
 		     (evt->port_fault == BEISCSI_PHY_LINK_FAULT_NONE))) {
-		phba->state = BE_ADAPTER_UP;
+		phba->state = BE_ADAPTER_LINK_UP;
 
 		beiscsi_log(phba, KERN_ERR,
 			    BEISCSI_LOG_CONFIG | BEISCSI_LOG_INIT,
diff --git a/drivers/scsi/be2iscsi/be_iscsi.c b/drivers/scsi/be2iscsi/be_iscsi.c
index e82ab8124958..ffadbee0b4d9 100644
--- a/drivers/scsi/be2iscsi/be_iscsi.c
+++ b/drivers/scsi/be2iscsi/be_iscsi.c
@@ -58,10 +58,15 @@ struct iscsi_cls_session *beiscsi_session_create(struct iscsi_endpoint *ep,
 	}
 	beiscsi_ep = ep->dd_data;
 	phba = beiscsi_ep->phba;
-	shost = phba->shost;
 
-	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
-		    "BS_%d : In beiscsi_session_create\n");
+	if (phba->state & BE_ADAPTER_PCI_ERR) {
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : PCI_ERROR Recovery\n");
+		return NULL;
+	} else {
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+			    "BS_%d : In beiscsi_session_create\n");
+	}
 
 	if (cmds_max > beiscsi_ep->phba->params.wrbs_per_cxn) {
 		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
@@ -74,6 +79,7 @@ struct iscsi_cls_session *beiscsi_session_create(struct iscsi_endpoint *ep,
 		cmds_max = beiscsi_ep->phba->params.wrbs_per_cxn;
 	}
 
+	shost = phba->shost;
 	cls_session = iscsi_session_setup(&beiscsi_iscsi_transport,
 					  shost, cmds_max,
 					  sizeof(*beiscsi_sess),
@@ -477,6 +483,12 @@ int be2iscsi_iface_set_param(struct Scsi_Host *shost,
 	uint32_t rm_len = dt_len;
 	int ret = 0 ;
 
+	if (phba->state & BE_ADAPTER_PCI_ERR) {
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : In PCI_ERROR Recovery\n");
+		return -EBUSY;
+	}
+
 	nla_for_each_attr(attrib, data, dt_len, rm_len) {
 		iface_param = nla_data(attrib);
 
@@ -588,6 +600,12 @@ int be2iscsi_iface_get_param(struct iscsi_iface *iface,
 	struct be_cmd_get_def_gateway_resp gateway;
 	int len = -ENOSYS;
 
+	if (phba->state & BE_ADAPTER_PCI_ERR) {
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : In PCI_ERROR Recovery\n");
+		return -EBUSY;
+	}
+
 	switch (param) {
 	case ISCSI_NET_PARAM_IPV4_ADDR:
 	case ISCSI_NET_PARAM_IPV4_SUBNET:
@@ -737,7 +755,7 @@ static void beiscsi_get_port_state(struct Scsi_Host *shost)
 	struct beiscsi_hba *phba = iscsi_host_priv(shost);
 	struct iscsi_cls_host *ihost = shost->shost_data;
 
-	ihost->port_state = (phba->state == BE_ADAPTER_UP) ?
+	ihost->port_state = (phba->state == BE_ADAPTER_LINK_UP) ?
 		ISCSI_PORT_STATE_UP : ISCSI_PORT_STATE_DOWN;
 }
 
@@ -805,9 +823,16 @@ int beiscsi_get_host_param(struct Scsi_Host *shost,
 	struct beiscsi_hba *phba = iscsi_host_priv(shost);
 	int status = 0;
 
-	beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
-		    "BS_%d : In beiscsi_get_host_param,"
-		    " param= %d\n", param);
+
+	if (phba->state & BE_ADAPTER_PCI_ERR) {
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : In PCI_ERROR Recovery\n");
+		return -EBUSY;
+	} else {
+		beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_CONFIG,
+			    "BS_%d : In beiscsi_get_host_param,"
+			    " param = %d\n", param);
+	}
 
 	switch (param) {
 	case ISCSI_HOST_PARAM_HWADDRESS:
@@ -950,10 +975,19 @@ int beiscsi_conn_start(struct iscsi_cls_conn *cls_conn)
 	struct beiscsi_conn *beiscsi_conn = conn->dd_data;
 	struct beiscsi_endpoint *beiscsi_ep;
 	struct beiscsi_offload_params params;
+	struct beiscsi_hba *phba;
 
-	beiscsi_log(beiscsi_conn->phba, KERN_INFO,
-		    BEISCSI_LOG_CONFIG,
-		    "BS_%d : In beiscsi_conn_start\n");
+	phba = ((struct beiscsi_conn *)conn->dd_data)->phba;
+
+	if (phba->state & BE_ADAPTER_PCI_ERR) {
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : In PCI_ERROR Recovery\n");
+		return -EBUSY;
+	} else {
+		beiscsi_log(beiscsi_conn->phba, KERN_INFO,
+			    BEISCSI_LOG_CONFIG,
+			    "BS_%d : In beiscsi_conn_start\n");
+	}
 
 	memset(&params, 0, sizeof(struct beiscsi_offload_params));
 	beiscsi_ep = beiscsi_conn->ep;
@@ -1178,7 +1212,12 @@ beiscsi_ep_connect(struct Scsi_Host *shost, struct sockaddr *dst_addr,
 		return ERR_PTR(ret);
 	}
 
-	if (phba->state != BE_ADAPTER_UP) {
+	if (phba->state & BE_ADAPTER_PCI_ERR) {
+		ret = -EBUSY;
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : In PCI_ERROR Recovery\n");
+		return ERR_PTR(ret);
+	} else if (phba->state & BE_ADAPTER_LINK_DOWN) {
 		ret = -EBUSY;
 		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_CONFIG,
 			    "BS_%d : The Adapter Port state is Down!!!\n");
@@ -1303,6 +1342,12 @@ void beiscsi_ep_disconnect(struct iscsi_endpoint *ep)
 		tcp_upload_flag = CONNECTION_UPLOAD_ABORT;
 	}
 
+	if (phba->state & BE_ADAPTER_PCI_ERR) {
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_CONFIG,
+			    "BS_%d : PCI_ERROR Recovery\n");
+		goto free_ep;
+	}
+
 	tag = mgmt_invalidate_connection(phba, beiscsi_ep,
 					  beiscsi_ep->ep_cid,
 					  mgmt_invalidate_flag,
@@ -1315,6 +1360,7 @@ void beiscsi_ep_disconnect(struct iscsi_endpoint *ep)
 
 	beiscsi_mccq_compl(phba, tag, NULL, NULL);
 	beiscsi_close_conn(beiscsi_ep, tcp_upload_flag);
+free_ep:
 	beiscsi_free_ep(beiscsi_ep);
 	beiscsi_unbind_conn_to_cid(phba, beiscsi_ep->ep_cid);
 	iscsi_destroy_endpoint(beiscsi_ep->openiscsi_ep);
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 8f300534fc32..d84ecc5317ff 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -5140,10 +5140,12 @@ void beiscsi_hba_attrs_init(struct beiscsi_hba *phba)
 /*
  * beiscsi_quiesce()- Cleanup Driver resources
  * @phba: Instance Priv structure
+ * @unload_state:i Clean or EEH unload state
  *
  * Free the OS and HW resources held by the driver
  **/
-static void beiscsi_quiesce(struct beiscsi_hba *phba)
+static void beiscsi_quiesce(struct beiscsi_hba *phba,
+		uint32_t unload_state)
 {
 	struct hwi_controller *phwi_ctrlr;
 	struct hwi_context_memory *phwi_context;
@@ -5156,28 +5158,37 @@ static void beiscsi_quiesce(struct beiscsi_hba *phba)
 	if (phba->msix_enabled) {
 		for (i = 0; i <= phba->num_cpus; i++) {
 			msix_vec = phba->msix_entries[i].vector;
+			synchronize_irq(msix_vec);
 			free_irq(msix_vec, &phwi_context->be_eq[i]);
 			kfree(phba->msi_name[i]);
 		}
 	} else
-		if (phba->pcidev->irq)
+		if (phba->pcidev->irq) {
+			synchronize_irq(phba->pcidev->irq);
 			free_irq(phba->pcidev->irq, phba);
+		}
 	pci_disable_msix(phba->pcidev);
-	destroy_workqueue(phba->wq);
+
 	if (blk_iopoll_enabled)
 		for (i = 0; i < phba->num_cpus; i++) {
 			pbe_eq = &phwi_context->be_eq[i];
 			blk_iopoll_disable(&pbe_eq->iopoll);
 		}
 
-	beiscsi_clean_port(phba);
-	beiscsi_free_mem(phba);
+	if (unload_state == BEISCSI_CLEAN_UNLOAD) {
+		destroy_workqueue(phba->wq);
+		beiscsi_clean_port(phba);
+		beiscsi_free_mem(phba);
 
-	beiscsi_unmap_pci_function(phba);
-	pci_free_consistent(phba->pcidev,
-			    phba->ctrl.mbox_mem_alloced.size,
-			    phba->ctrl.mbox_mem_alloced.va,
-			    phba->ctrl.mbox_mem_alloced.dma);
+		beiscsi_unmap_pci_function(phba);
+		pci_free_consistent(phba->pcidev,
+				    phba->ctrl.mbox_mem_alloced.size,
+				    phba->ctrl.mbox_mem_alloced.va,
+				    phba->ctrl.mbox_mem_alloced.dma);
+	} else {
+		hwi_purge_eq(phba);
+		hwi_cleanup(phba);
+	}
 
 	cancel_delayed_work_sync(&phba->beiscsi_hw_check_task);
 }
@@ -5194,11 +5205,13 @@ static void beiscsi_remove(struct pci_dev *pcidev)
 	}
 
 	beiscsi_destroy_def_ifaces(phba);
-	beiscsi_quiesce(phba);
+	beiscsi_quiesce(phba, BEISCSI_CLEAN_UNLOAD);
 	iscsi_boot_destroy_kset(phba->boot_kset);
 	iscsi_host_remove(phba->shost);
 	pci_dev_put(phba->pcidev);
 	iscsi_host_free(phba->shost);
+	pci_disable_pcie_error_reporting(pcidev);
+	pci_set_drvdata(pcidev, NULL);
 	pci_disable_device(pcidev);
 }
 
@@ -5213,7 +5226,7 @@ static void beiscsi_shutdown(struct pci_dev *pcidev)
 		return;
 	}
 
-	beiscsi_quiesce(phba);
+	beiscsi_quiesce(phba, BEISCSI_CLEAN_UNLOAD);
 	pci_disable_device(pcidev);
 }
 
@@ -5251,6 +5264,167 @@ beiscsi_hw_health_check(struct work_struct *work)
 			      msecs_to_jiffies(1000));
 }
 
+
+static pci_ers_result_t beiscsi_eeh_err_detected(struct pci_dev *pdev,
+		pci_channel_state_t state)
+{
+	struct beiscsi_hba *phba = NULL;
+
+	phba = (struct beiscsi_hba *)pci_get_drvdata(pdev);
+	phba->state |= BE_ADAPTER_PCI_ERR;
+
+	beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+		    "BM_%d : EEH error detected\n");
+
+	beiscsi_quiesce(phba, BEISCSI_EEH_UNLOAD);
+
+	if (state == pci_channel_io_perm_failure) {
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : EEH : State PERM Failure");
+		return PCI_ERS_RESULT_DISCONNECT;
+	}
+
+	pci_disable_device(pdev);
+
+	/* The error could cause the FW to trigger a flash debug dump.
+	 * Resetting the card while flash dump is in progress
+	 * can cause it not to recover; wait for it to finish.
+	 * Wait only for first function as it is needed only once per
+	 * adapter.
+	 **/
+	if (pdev->devfn == 0)
+		ssleep(30);
+
+	return PCI_ERS_RESULT_NEED_RESET;
+}
+
+static pci_ers_result_t beiscsi_eeh_reset(struct pci_dev *pdev)
+{
+	struct beiscsi_hba *phba = NULL;
+	int status = 0;
+
+	phba = (struct beiscsi_hba *)pci_get_drvdata(pdev);
+
+	beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+		    "BM_%d : EEH Reset\n");
+
+	status = pci_enable_device(pdev);
+	if (status)
+		return PCI_ERS_RESULT_DISCONNECT;
+
+	pci_set_master(pdev);
+	pci_set_power_state(pdev, PCI_D0);
+	pci_restore_state(pdev);
+
+	/* Wait for the CHIP Reset to complete */
+	status = be_chk_reset_complete(phba);
+	if (!status) {
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
+			    "BM_%d : EEH Reset Completed\n");
+	} else {
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
+			    "BM_%d : EEH Reset Completion Failure\n");
+		return PCI_ERS_RESULT_DISCONNECT;
+	}
+
+	pci_cleanup_aer_uncorrect_error_status(pdev);
+	return PCI_ERS_RESULT_RECOVERED;
+}
+
+static void beiscsi_eeh_resume(struct pci_dev *pdev)
+{
+	int ret = 0, i;
+	struct be_eq_obj *pbe_eq;
+	struct beiscsi_hba *phba = NULL;
+	struct hwi_controller *phwi_ctrlr;
+	struct hwi_context_memory *phwi_context;
+
+	phba = (struct beiscsi_hba *)pci_get_drvdata(pdev);
+	pci_save_state(pdev);
+
+	if (enable_msix)
+		find_num_cpus(phba);
+	else
+		phba->num_cpus = 1;
+
+	if (enable_msix) {
+		beiscsi_msix_enable(phba);
+		if (!phba->msix_enabled)
+			phba->num_cpus = 1;
+	}
+
+	ret = beiscsi_cmd_reset_function(phba);
+	if (ret) {
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : Reset Failed\n");
+		goto ret_err;
+	}
+
+	ret = be_chk_reset_complete(phba);
+	if (ret) {
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : Failed to get out of reset.\n");
+		goto ret_err;
+	}
+
+	beiscsi_get_params(phba);
+	phba->shost->max_id = phba->params.cxns_per_ctrl;
+	phba->shost->can_queue = phba->params.ios_per_ctrl;
+	ret = hwi_init_controller(phba);
+
+	for (i = 0; i < MAX_MCC_CMD; i++) {
+		init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]);
+		phba->ctrl.mcc_tag[i] = i + 1;
+		phba->ctrl.mcc_numtag[i + 1] = 0;
+		phba->ctrl.mcc_tag_available++;
+	}
+
+	phwi_ctrlr = phba->phwi_ctrlr;
+	phwi_context = phwi_ctrlr->phwi_ctxt;
+
+	if (blk_iopoll_enabled) {
+		for (i = 0; i < phba->num_cpus; i++) {
+			pbe_eq = &phwi_context->be_eq[i];
+			blk_iopoll_init(&pbe_eq->iopoll, be_iopoll_budget,
+					be_iopoll);
+			blk_iopoll_enable(&pbe_eq->iopoll);
+		}
+
+		i = (phba->msix_enabled) ? i : 0;
+		/* Work item for MCC handling */
+		pbe_eq = &phwi_context->be_eq[i];
+		INIT_WORK(&pbe_eq->work_cqs, beiscsi_process_all_cqs);
+	} else {
+		if (phba->msix_enabled) {
+			for (i = 0; i <= phba->num_cpus; i++) {
+				pbe_eq = &phwi_context->be_eq[i];
+				INIT_WORK(&pbe_eq->work_cqs,
+					  beiscsi_process_all_cqs);
+			}
+		} else {
+			pbe_eq = &phwi_context->be_eq[0];
+			INIT_WORK(&pbe_eq->work_cqs,
+				  beiscsi_process_all_cqs);
+		}
+	}
+
+	ret = beiscsi_init_irqs(phba);
+	if (ret < 0) {
+		beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+			    "BM_%d : beiscsi_eeh_resume - "
+			    "Failed to beiscsi_init_irqs\n");
+		goto ret_err;
+	}
+
+	hwi_enable_intr(phba);
+	phba->state &= ~BE_ADAPTER_PCI_ERR;
+
+	return;
+ret_err:
+	beiscsi_log(phba, KERN_ERR, BEISCSI_LOG_INIT,
+		    "BM_%d : AER EEH Resume Failed\n");
+}
+
 static int beiscsi_dev_probe(struct pci_dev *pcidev,
 			     const struct pci_device_id *id)
 {
@@ -5258,7 +5432,7 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev,
 	struct hwi_controller *phwi_ctrlr;
 	struct hwi_context_memory *phwi_context;
 	struct be_eq_obj *pbe_eq;
-	int ret, i;
+	int ret = 0, i;
 
 	ret = beiscsi_enable_pci(pcidev);
 	if (ret < 0) {
@@ -5274,6 +5448,15 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev,
 		goto disable_pci;
 	}
 
+	/* Enable EEH reporting */
+	ret = pci_enable_pcie_error_reporting(pcidev);
+	if (ret)
+		beiscsi_log(phba, KERN_WARNING, BEISCSI_LOG_INIT,
+			    "BM_%d : PCIe Error Reporting "
+			    "Enabling Failed\n");
+
+	pci_save_state(pcidev);
+
 	/* Initialize Driver configuration Paramters */
 	beiscsi_hba_attrs_init(phba);
 
@@ -5359,7 +5542,7 @@ static int beiscsi_dev_probe(struct pci_dev *pcidev,
 		goto free_port;
 	}
 
-	for (i = 0; i < MAX_MCC_CMD ; i++) {
+	for (i = 0; i < MAX_MCC_CMD; i++) {
 		init_waitqueue_head(&phba->ctrl.mcc_wait[i + 1]);
 		phba->ctrl.mcc_tag[i] = i + 1;
 		phba->ctrl.mcc_numtag[i + 1] = 0;
@@ -5463,6 +5646,12 @@ disable_pci:
 	return ret;
 }
 
+static struct pci_error_handlers beiscsi_eeh_handlers = {
+	.error_detected = beiscsi_eeh_err_detected,
+	.slot_reset = beiscsi_eeh_reset,
+	.resume = beiscsi_eeh_resume,
+};
+
 struct iscsi_transport beiscsi_iscsi_transport = {
 	.owner = THIS_MODULE,
 	.name = DRV_NAME,
@@ -5501,7 +5690,8 @@ static struct pci_driver beiscsi_pci_driver = {
 	.probe = beiscsi_dev_probe,
 	.remove = beiscsi_remove,
 	.shutdown = beiscsi_shutdown,
-	.id_table = beiscsi_pci_id_table
+	.id_table = beiscsi_pci_id_table,
+	.err_handler = &beiscsi_eeh_handlers
 };
 
 
diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
index a8ae6b82c3e1..aace072e033e 100644
--- a/drivers/scsi/be2iscsi/be_main.h
+++ b/drivers/scsi/be2iscsi/be_main.h
@@ -26,6 +26,7 @@
 #include <linux/in.h>
 #include <linux/ctype.h>
 #include <linux/module.h>
+#include <linux/aer.h>
 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_device.h>
@@ -96,8 +97,12 @@
 
 #define INVALID_SESS_HANDLE	0xFFFFFFFF
 
-#define BE_ADAPTER_UP		0x00000000
-#define BE_ADAPTER_LINK_DOWN	0x00000001
+#define BE_ADAPTER_LINK_UP	0x001
+#define BE_ADAPTER_LINK_DOWN	0x002
+#define BE_ADAPTER_PCI_ERR	0x004
+
+#define BEISCSI_CLEAN_UNLOAD	0x01
+#define BEISCSI_EEH_UNLOAD	0x02
 /**
  * hardware needs the async PDU buffers to be posted in multiples of 8
  * So have atleast 8 of them by default
-- 
cgit 


From cf987b7900b8a88661cc984305eb8672b5d6b8f7 Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:35:59 -0700
Subject: [SCSI] be2iscsi: Fix SGL posting for unaligned ICD values

If certain configuration it is possible that ICD range is not page-aligned.
SGL posting failed in these configuration and driver load was not success.
This fix aligns ICD range values and SGL posting for IO is done.

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_main.c | 53 ++++++++++++++++++++++++++++++++++++++---
 drivers/scsi/be2iscsi/be_mgmt.c | 10 ++++++--
 2 files changed, 58 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index d84ecc5317ff..1f375051483a 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -729,13 +729,60 @@ static void beiscsi_get_params(struct beiscsi_hba *phba)
 	total_cid_count = BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP0) +
 			  BEISCSI_GET_CID_COUNT(phba, BEISCSI_ULP1);
 
-	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++)
+	for (ulp_num = 0; ulp_num < BEISCSI_ULP_COUNT; ulp_num++) {
+		uint32_t align_mask = 0;
+		uint32_t icd_post_per_page = 0;
+		uint32_t icd_count_unavailable = 0;
+		uint32_t icd_start = 0, icd_count = 0;
+		uint32_t icd_start_align = 0, icd_count_align = 0;
+
 		if (test_bit(ulp_num, &phba->fw_config.ulp_supported)) {
-			total_icd_count = phba->fw_config.
-					  iscsi_icd_count[ulp_num];
+			icd_start = phba->fw_config.iscsi_icd_start[ulp_num];
+			icd_count = phba->fw_config.iscsi_icd_count[ulp_num];
+
+			/* Get ICD count that can be posted on each page */
+			icd_post_per_page = (PAGE_SIZE / (BE2_SGE *
+					     sizeof(struct iscsi_sge)));
+			align_mask = (icd_post_per_page - 1);
+
+			/* Check if icd_start is aligned ICD per page posting */
+			if (icd_start % icd_post_per_page) {
+				icd_start_align = ((icd_start +
+						    icd_post_per_page) &
+						    ~(align_mask));
+				phba->fw_config.
+					iscsi_icd_start[ulp_num] =
+					icd_start_align;
+			}
+
+			icd_count_align = (icd_count & ~align_mask);
+
+			/* ICD discarded in the process of alignment */
+			if (icd_start_align)
+				icd_count_unavailable = ((icd_start_align -
+							  icd_start) +
+							 (icd_count -
+							  icd_count_align));
+
+			/* Updated ICD count available */
+			phba->fw_config.iscsi_icd_count[ulp_num] = (icd_count -
+					icd_count_unavailable);
+
+			beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
+					"BM_%d : Aligned ICD values\n"
+					"\t ICD Start : %d\n"
+					"\t ICD Count : %d\n"
+					"\t ICD Discarded : %d\n",
+					phba->fw_config.
+					iscsi_icd_start[ulp_num],
+					phba->fw_config.
+					iscsi_icd_count[ulp_num],
+					icd_count_unavailable);
 			break;
 		}
+	}
 
+	total_icd_count = phba->fw_config.iscsi_icd_count[ulp_num];
 	phba->params.ios_per_ctrl = (total_icd_count -
 				    (total_cid_count +
 				     BE2_TMFS + BE2_NOPOUT_REQ));
diff --git a/drivers/scsi/be2iscsi/be_mgmt.c b/drivers/scsi/be2iscsi/be_mgmt.c
index 1f2b546a3fc4..b2fcac78feaa 100644
--- a/drivers/scsi/be2iscsi/be_mgmt.c
+++ b/drivers/scsi/be2iscsi/be_mgmt.c
@@ -350,12 +350,18 @@ int mgmt_get_fw_config(struct be_ctrl_info *ctrl,
 				beiscsi_log(phba, KERN_INFO, BEISCSI_LOG_INIT,
 					    "BG_%d : Function loaded on ULP : %d\n"
 					    "\tiscsi_cid_count : %d\n"
-					    "\t iscsi_icd_count : %d\n",
+					    "\tiscsi_cid_start : %d\n"
+					    "\t iscsi_icd_count : %d\n"
+					    "\t iscsi_icd_start : %d\n",
 					    ulp_num,
 					    phba->fw_config.
 					    iscsi_cid_count[ulp_num],
 					    phba->fw_config.
-					    iscsi_icd_count[ulp_num]);
+					    iscsi_cid_start[ulp_num],
+					    phba->fw_config.
+					    iscsi_icd_count[ulp_num],
+					    phba->fw_config.
+					    iscsi_icd_start[ulp_num]);
 			}
 		}
 
-- 
cgit 


From 214ab31c7c64d7312c360811e79c7c3c4ba5a0fb Mon Sep 17 00:00:00 2001
From: Jayamohan Kallickal <jayamohank@gmail.com>
Date: Sat, 28 Sep 2013 15:36:00 -0700
Subject: [SCSI] be2iscsi: Bump driver version

Signed-off-by: John Soni Jose <sony.john-n@emulex.com>
Signed-off-by: Jayamohan Kallickal <jayamohan.kallickal@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/be2iscsi/be_main.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/be2iscsi/be_main.h b/drivers/scsi/be2iscsi/be_main.h
index aace072e033e..31fa27b4a9b2 100644
--- a/drivers/scsi/be2iscsi/be_main.h
+++ b/drivers/scsi/be2iscsi/be_main.h
@@ -36,7 +36,7 @@
 #include <scsi/scsi_transport_iscsi.h>
 
 #define DRV_NAME		"be2iscsi"
-#define BUILD_STR		"10.0.467.0"
+#define BUILD_STR		"10.0.659.0"
 #define BE_NAME			"Emulex OneConnect" \
 				"Open-iSCSI Driver version" BUILD_STR
 #define DRV_DESC		BE_NAME " " "Driver"
-- 
cgit 


From 14faa944b6fa4c77a6f386806c33ce2c3c77b3a4 Mon Sep 17 00:00:00 2001
From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Wed, 18 Sep 2013 21:27:24 +0900
Subject: [SCSI] scsi_debug: fix buffer overrun when DIF/DIX is enabled and
 virtual_gb > 0

If the module parameter virtual_gb is greater than 0, the READ command
may request the blocks which exceed actual ramdisk storage (fake_storep).
prot_verify_read() should treat those blocks as wrap around the end of
fake_storep.  But it actually causes fake_storep and dif_storep buffer
overruns.

This fixes these buffer overruns.  In order to simplify the fix,
this also introduces fake_store() and dif_store() which return
corresponding wrap around addresses.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/scsi_debug.c | 48 +++++++++++++++++++++++++++++------------------
 1 file changed, 30 insertions(+), 18 deletions(-)

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 01c0ffa31276..f640b6b380bd 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -293,6 +293,20 @@ static unsigned char ctrl_m_pg[] = {0xa, 10, 2, 0, 0, 0, 0, 0,
 static unsigned char iec_m_pg[] = {0x1c, 0xa, 0x08, 0, 0, 0, 0, 0,
 			           0, 0, 0x0, 0x0};
 
+static void *fake_store(unsigned long long lba)
+{
+	lba = do_div(lba, sdebug_store_sectors);
+
+	return fake_storep + lba * scsi_debug_sector_size;
+}
+
+static struct sd_dif_tuple *dif_store(sector_t sector)
+{
+	sector = do_div(sector, sdebug_store_sectors);
+
+	return dif_storep + sector;
+}
+
 static int sdebug_add_adapter(void);
 static void sdebug_remove_adapter(void);
 
@@ -1782,24 +1796,19 @@ static int prot_verify_read(struct scsi_cmnd *SCpnt, sector_t start_sec,
 	struct scatterlist *psgl;
 	struct sd_dif_tuple *sdt;
 	sector_t sector;
-	sector_t tmp_sec = start_sec;
 	void *paddr;
+	const void *dif_store_end = dif_storep + sdebug_store_sectors;
 
-	start_sec = do_div(tmp_sec, sdebug_store_sectors);
-
-	sdt = dif_storep + start_sec;
-
-	for (i = 0 ; i < sectors ; i++) {
+	for (i = 0; i < sectors; i++) {
 		int ret;
 
-		if (sdt[i].app_tag == 0xffff)
-			continue;
-
 		sector = start_sec + i;
+		sdt = dif_store(sector);
 
-		ret = dif_verify(&sdt[i],
-				 fake_storep + sector * scsi_debug_sector_size,
-				 sector, ei_lba);
+		if (sdt->app_tag == 0xffff)
+			continue;
+
+		ret = dif_verify(sdt, fake_store(sector), sector, ei_lba);
 		if (ret) {
 			dif_errors++;
 			return ret;
@@ -1814,16 +1823,19 @@ static int prot_verify_read(struct scsi_cmnd *SCpnt, sector_t start_sec,
 
 	scsi_for_each_prot_sg(SCpnt, psgl, scsi_prot_sg_count(SCpnt), i) {
 		int len = min(psgl->length, resid);
+		void *start = dif_store(sector);
+		int rest = 0;
+
+		if (dif_store_end < start + len)
+			rest = start + len - dif_store_end;
 
 		paddr = kmap_atomic(sg_page(psgl)) + psgl->offset;
-		memcpy(paddr, dif_storep + sector, len);
+		memcpy(paddr, start, len - rest);
+
+		if (rest)
+			memcpy(paddr + len - rest, dif_storep, rest);
 
 		sector += len / sizeof(*dif_storep);
-		if (sector >= sdebug_store_sectors) {
-			/* Force wrap */
-			tmp_sec = sector;
-			sector = do_div(tmp_sec, sdebug_store_sectors);
-		}
 		resid -= len;
 		kunmap_atomic(paddr);
 	}
-- 
cgit 


From bb8c063c6afcd930b8da944927144f2982609638 Mon Sep 17 00:00:00 2001
From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Wed, 18 Sep 2013 21:27:25 +0900
Subject: [SCSI] scsi_debug: factor out copying PI from dif_storep to
 prot_sglist

If data integrity support is enabled, prot_verify_read() is called in
response to READ commands and it verifies protection info from dif_storep
by comparing against fake_storep, and copies protection info to
prot_sglist.

This factors out the portion of copying protection info into a separate
function.  It will also be reused in the next change after supporting
the opposite direction (copying prot_sglist to dif_storep).

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/scsi_debug.c | 52 ++++++++++++++++++++++++++---------------------
 1 file changed, 29 insertions(+), 23 deletions(-)

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index f640b6b380bd..99e74d75cf08 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -1789,37 +1789,16 @@ static int dif_verify(struct sd_dif_tuple *sdt, const void *data,
 	return 0;
 }
 
-static int prot_verify_read(struct scsi_cmnd *SCpnt, sector_t start_sec,
-			    unsigned int sectors, u32 ei_lba)
+static void dif_copy_prot(struct scsi_cmnd *SCpnt, sector_t sector,
+			  unsigned int sectors)
 {
 	unsigned int i, resid;
 	struct scatterlist *psgl;
-	struct sd_dif_tuple *sdt;
-	sector_t sector;
 	void *paddr;
 	const void *dif_store_end = dif_storep + sdebug_store_sectors;
 
-	for (i = 0; i < sectors; i++) {
-		int ret;
-
-		sector = start_sec + i;
-		sdt = dif_store(sector);
-
-		if (sdt->app_tag == 0xffff)
-			continue;
-
-		ret = dif_verify(sdt, fake_store(sector), sector, ei_lba);
-		if (ret) {
-			dif_errors++;
-			return ret;
-		}
-
-		ei_lba++;
-	}
-
 	/* Bytes of protection data to copy into sgl */
 	resid = sectors * sizeof(*dif_storep);
-	sector = start_sec;
 
 	scsi_for_each_prot_sg(SCpnt, psgl, scsi_prot_sg_count(SCpnt), i) {
 		int len = min(psgl->length, resid);
@@ -1839,7 +1818,34 @@ static int prot_verify_read(struct scsi_cmnd *SCpnt, sector_t start_sec,
 		resid -= len;
 		kunmap_atomic(paddr);
 	}
+}
+
+static int prot_verify_read(struct scsi_cmnd *SCpnt, sector_t start_sec,
+			    unsigned int sectors, u32 ei_lba)
+{
+	unsigned int i;
+	struct sd_dif_tuple *sdt;
+	sector_t sector;
+
+	for (i = 0; i < sectors; i++) {
+		int ret;
+
+		sector = start_sec + i;
+		sdt = dif_store(sector);
+
+		if (sdt->app_tag == 0xffff)
+			continue;
+
+		ret = dif_verify(sdt, fake_store(sector), sector, ei_lba);
+		if (ret) {
+			dif_errors++;
+			return ret;
+		}
+
+		ei_lba++;
+	}
 
+	dif_copy_prot(SCpnt, start_sec, sectors);
 	dix_reads++;
 
 	return 0;
-- 
cgit 


From 65f72f2a2fe89f072d6a88e5cd69a64270b9c436 Mon Sep 17 00:00:00 2001
From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Wed, 18 Sep 2013 21:27:26 +0900
Subject: [SCSI] scsi_debug: avoid partial copying PI from prot_sglist to
 dif_storep

If data integrity support is enabled, prot_verify_write() is called in
response to WRITE commands and it verifies protection info from
prot_sglist by comparing against data sglist, and copies protection info
to dif_storep.

When multiple blocks are transfered by a WRITE command, it verifies and
copies these blocks one by one.  So if it fails to verify protection
info in the middle of blocks, the actual data transfer to fake_storep
isn't proceeded at all although protection info for some blocks are
already copied to dif_storep.  Therefore, it breaks the data integrity
between fake_storep and dif_storep.

This fixes it by ensuring that copying protection info to dif_storep is
done after all blocks are successfully verified.  Reusing dif_copy_prot()
with supporting the opposite direction simplifies this fix.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/scsi_debug.c | 40 +++++++++++++++++-----------------------
 1 file changed, 17 insertions(+), 23 deletions(-)

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 99e74d75cf08..43369e9071f7 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -1790,7 +1790,7 @@ static int dif_verify(struct sd_dif_tuple *sdt, const void *data,
 }
 
 static void dif_copy_prot(struct scsi_cmnd *SCpnt, sector_t sector,
-			  unsigned int sectors)
+			  unsigned int sectors, bool read)
 {
 	unsigned int i, resid;
 	struct scatterlist *psgl;
@@ -1809,10 +1809,18 @@ static void dif_copy_prot(struct scsi_cmnd *SCpnt, sector_t sector,
 			rest = start + len - dif_store_end;
 
 		paddr = kmap_atomic(sg_page(psgl)) + psgl->offset;
-		memcpy(paddr, start, len - rest);
 
-		if (rest)
-			memcpy(paddr + len - rest, dif_storep, rest);
+		if (read)
+			memcpy(paddr, start, len - rest);
+		else
+			memcpy(start, paddr, len - rest);
+
+		if (rest) {
+			if (read)
+				memcpy(paddr + len - rest, dif_storep, rest);
+			else
+				memcpy(dif_storep, paddr + len - rest, rest);
+		}
 
 		sector += len / sizeof(*dif_storep);
 		resid -= len;
@@ -1845,7 +1853,7 @@ static int prot_verify_read(struct scsi_cmnd *SCpnt, sector_t start_sec,
 		ei_lba++;
 	}
 
-	dif_copy_prot(SCpnt, start_sec, sectors);
+	dif_copy_prot(SCpnt, start_sec, sectors, true);
 	dix_reads++;
 
 	return 0;
@@ -1928,15 +1936,12 @@ static int prot_verify_write(struct scsi_cmnd *SCpnt, sector_t start_sec,
 {
 	int i, j, ret;
 	struct sd_dif_tuple *sdt;
-	struct scatterlist *dsgl = scsi_sglist(SCpnt);
+	struct scatterlist *dsgl;
 	struct scatterlist *psgl = scsi_prot_sglist(SCpnt);
 	void *daddr, *paddr;
-	sector_t tmp_sec = start_sec;
-	sector_t sector;
+	sector_t sector = start_sec;
 	int ppage_offset;
 
-	sector = do_div(tmp_sec, sdebug_store_sectors);
-
 	BUG_ON(scsi_sg_count(SCpnt) == 0);
 	BUG_ON(scsi_prot_sg_count(SCpnt) == 0);
 
@@ -1964,25 +1969,13 @@ static int prot_verify_write(struct scsi_cmnd *SCpnt, sector_t start_sec,
 
 			sdt = paddr + ppage_offset;
 
-			ret = dif_verify(sdt, daddr + j, start_sec, ei_lba);
+			ret = dif_verify(sdt, daddr + j, sector, ei_lba);
 			if (ret) {
 				dump_sector(daddr + j, scsi_debug_sector_size);
 				goto out;
 			}
 
-			/* Would be great to copy this in bigger
-			 * chunks.  However, for the sake of
-			 * correctness we need to verify each sector
-			 * before writing it to "stable" storage
-			 */
-			memcpy(dif_storep + sector, sdt, sizeof(*sdt));
-
 			sector++;
-
-			if (sector == sdebug_store_sectors)
-				sector = 0;	/* Force wrap */
-
-			start_sec++;
 			ei_lba++;
 			ppage_offset += sizeof(struct sd_dif_tuple);
 		}
@@ -1991,6 +1984,7 @@ static int prot_verify_write(struct scsi_cmnd *SCpnt, sector_t start_sec,
 		kunmap_atomic(daddr);
 	}
 
+	dif_copy_prot(SCpnt, start_sec, sectors, false);
 	dix_writes++;
 
 	return 0;
-- 
cgit 


From 68aee7ba66d390abf48c13791a84f6bce29d6f19 Mon Sep 17 00:00:00 2001
From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Wed, 18 Sep 2013 21:27:27 +0900
Subject: [SCSI] scsi_debug: fix invalid value check for guard module parameter

In the module initialization, invalid value for guard module parameter
is detected by the following check:

        if (scsi_debug_guard > 1) {
                printk(KERN_ERR "scsi_debug_init: guard must be 0 or 1\n");
                return -EINVAL;
        }

But this check isn't enough, because the type of scsi_debug_guard is
'int' and scsi_debug_guard could be a negative value.

This fixes it by changing the type of scsi_debug_guard to 'unsigned int'
instead of adding extra check for a negative value.

Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/scsi_debug.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 43369e9071f7..a21322d6da61 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -169,7 +169,7 @@ static int scsi_debug_dix = DEF_DIX;
 static int scsi_debug_dsense = DEF_D_SENSE;
 static int scsi_debug_every_nth = DEF_EVERY_NTH;
 static int scsi_debug_fake_rw = DEF_FAKE_RW;
-static int scsi_debug_guard = DEF_GUARD;
+static unsigned int scsi_debug_guard = DEF_GUARD;
 static int scsi_debug_lowest_aligned = DEF_LOWEST_ALIGNED;
 static int scsi_debug_max_luns = DEF_MAX_LUNS;
 static int scsi_debug_max_queue = SCSI_DEBUG_CANQUEUE;
@@ -2754,7 +2754,7 @@ module_param_named(dix, scsi_debug_dix, int, S_IRUGO);
 module_param_named(dsense, scsi_debug_dsense, int, S_IRUGO | S_IWUSR);
 module_param_named(every_nth, scsi_debug_every_nth, int, S_IRUGO | S_IWUSR);
 module_param_named(fake_rw, scsi_debug_fake_rw, int, S_IRUGO | S_IWUSR);
-module_param_named(guard, scsi_debug_guard, int, S_IRUGO);
+module_param_named(guard, scsi_debug_guard, uint, S_IRUGO);
 module_param_named(lbpu, scsi_debug_lbpu, int, S_IRUGO);
 module_param_named(lbpws, scsi_debug_lbpws, int, S_IRUGO);
 module_param_named(lbpws10, scsi_debug_lbpws10, int, S_IRUGO);
@@ -3184,7 +3184,7 @@ DRIVER_ATTR(dif, S_IRUGO, sdebug_dif_show, NULL);
 
 static ssize_t sdebug_guard_show(struct device_driver *ddp, char *buf)
 {
-	return scnprintf(buf, PAGE_SIZE, "%d\n", scsi_debug_guard);
+	return scnprintf(buf, PAGE_SIZE, "%u\n", scsi_debug_guard);
 }
 DRIVER_ATTR(guard, S_IRUGO, sdebug_guard_show, NULL);
 
-- 
cgit 


From 51d648af5892219cbe97305efb300d3e56746591 Mon Sep 17 00:00:00 2001
From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Wed, 18 Sep 2013 21:27:28 +0900
Subject: [SCSI] scsi_debug: fix sparse warnings related to data integrity
 field

Each member in data integrity field tuple is big-endian.  But the
endianness of the values being compared with these members are not
annotated.  So this fixes these sparse warnings.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/scsi_debug.c | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index a21322d6da61..80b8b10edf41 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -1745,25 +1745,22 @@ static int do_device_access(struct scsi_cmnd *scmd,
 	return ret;
 }
 
-static u16 dif_compute_csum(const void *buf, int len)
+static __be16 dif_compute_csum(const void *buf, int len)
 {
-	u16 csum;
+	__be16 csum;
 
-	switch (scsi_debug_guard) {
-	case 1:
-		csum = ip_compute_csum(buf, len);
-		break;
-	case 0:
+	if (scsi_debug_guard)
+		csum = (__force __be16)ip_compute_csum(buf, len);
+	else
 		csum = cpu_to_be16(crc_t10dif(buf, len));
-		break;
-	}
+
 	return csum;
 }
 
 static int dif_verify(struct sd_dif_tuple *sdt, const void *data,
 		      sector_t sector, u32 ei_lba)
 {
-	u16 csum = dif_compute_csum(data, scsi_debug_sector_size);
+	__be16 csum = dif_compute_csum(data, scsi_debug_sector_size);
 
 	if (sdt->guard_tag != csum) {
 		pr_err("%s: GUARD check failed on sector %lu rcvd 0x%04x, data 0x%04x\n",
@@ -1841,7 +1838,7 @@ static int prot_verify_read(struct scsi_cmnd *SCpnt, sector_t start_sec,
 		sector = start_sec + i;
 		sdt = dif_store(sector);
 
-		if (sdt->app_tag == 0xffff)
+		if (sdt->app_tag == cpu_to_be16(0xffff))
 			continue;
 
 		ret = dif_verify(sdt, fake_store(sector), sector, ei_lba);
-- 
cgit 


From af73623f5f10eb3832c87a169b28f7df040a875b Mon Sep 17 00:00:00 2001
From: Bernd Schubert <bernd.schubert@itwm.fraunhofer.de>
Date: Mon, 23 Sep 2013 14:47:32 +0200
Subject: [SCSI] sd: Reduce buffer size for vpd request

Somehow older areca firmware versions have issues with
scsi_get_vpd_page() and a large buffer, the firmware
seems to crash and the scsi error-handler will start endless
recovery retries.
Limiting the buf-size to 64-bytes fixes this issue with older
firmware versions (<1.49 for my controller).

Fixes a regression with areca controllers and older firmware versions
introduced by commit: 66c28f97120e8a621afd5aa7a31c4b85c547d33d

Reported-by: Nix <nix@esperi.org.uk>
Tested-by: Nix <nix@esperi.org.uk>
Signed-off-by: Bernd Schubert <bernd.schubert@itwm.fraunhofer.de>
Cc: stable@vger.kernel.org # delay inclusion for 2 months for testing
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/sd.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 5693f6d7eddb..ab96b793f904 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2639,13 +2639,16 @@ static void sd_read_write_same(struct scsi_disk *sdkp, unsigned char *buffer)
 	struct scsi_device *sdev = sdkp->device;
 
 	if (scsi_report_opcode(sdev, buffer, SD_BUF_SIZE, INQUIRY) < 0) {
+		/* too large values might cause issues with arcmsr */
+		int vpd_buf_len = 64;
+
 		sdev->no_report_opcodes = 1;
 
 		/* Disable WRITE SAME if REPORT SUPPORTED OPERATION
 		 * CODES is unsupported and the device has an ATA
 		 * Information VPD page (SAT).
 		 */
-		if (!scsi_get_vpd_page(sdev, 0x89, buffer, SD_BUF_SIZE))
+		if (!scsi_get_vpd_page(sdev, 0x89, buffer, vpd_buf_len))
 			sdev->no_write_same = 1;
 	}
 
-- 
cgit 


From 95897910a5b8ecdc7e86ca2c38e21e84324c98bd Mon Sep 17 00:00:00 2001
From: Oliver Neukum <oneukum@suse.de>
Date: Mon, 16 Sep 2013 13:28:15 +0200
Subject: [SCSI] sd: Add error handling during flushing caches

It makes no sense to flush the cache of a device without medium.
Errors during suspend must be handled according to their causes.
Errors due to missing media or unplugged devices must be ignored.
Errors due to devices being offlined must also be ignored.
The error returns must be modified so that the generic layer
understands them.

[jejb: fix up whitespace and other formatting problems]
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/scsi_pm.c |  3 ++-
 drivers/scsi/sd.c      | 70 ++++++++++++++++++++++++++++++++++++++++----------
 2 files changed, 59 insertions(+), 14 deletions(-)

diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c
index 4c5aabe21755..af4c050ce6e4 100644
--- a/drivers/scsi/scsi_pm.c
+++ b/drivers/scsi/scsi_pm.c
@@ -54,7 +54,8 @@ scsi_bus_suspend_common(struct device *dev, int (*cb)(struct device *))
 		/*
 		 * All the high-level SCSI drivers that implement runtime
 		 * PM treat runtime suspend, system suspend, and system
-		 * hibernate identically.
+		 * hibernate nearly identically. In all cases the requirements
+		 * for runtime suspension are stricter.
 		 */
 		if (pm_runtime_suspended(dev))
 			return 0;
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index ab96b793f904..3824e754ca1d 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -105,7 +105,8 @@ static void sd_unlock_native_capacity(struct gendisk *disk);
 static int  sd_probe(struct device *);
 static int  sd_remove(struct device *);
 static void sd_shutdown(struct device *);
-static int sd_suspend(struct device *);
+static int sd_suspend_system(struct device *);
+static int sd_suspend_runtime(struct device *);
 static int sd_resume(struct device *);
 static void sd_rescan(struct device *);
 static int sd_done(struct scsi_cmnd *);
@@ -484,11 +485,11 @@ static struct class sd_disk_class = {
 };
 
 static const struct dev_pm_ops sd_pm_ops = {
-	.suspend		= sd_suspend,
+	.suspend		= sd_suspend_system,
 	.resume			= sd_resume,
-	.poweroff		= sd_suspend,
+	.poweroff		= sd_suspend_system,
 	.restore		= sd_resume,
-	.runtime_suspend	= sd_suspend,
+	.runtime_suspend	= sd_suspend_runtime,
 	.runtime_resume		= sd_resume,
 };
 
@@ -1438,7 +1439,6 @@ static int sd_sync_cache(struct scsi_disk *sdkp)
 	if (!scsi_device_online(sdp))
 		return -ENODEV;
 
-
 	for (retries = 3; retries > 0; --retries) {
 		unsigned char cmd[10] = { 0 };
 
@@ -1456,12 +1456,31 @@ static int sd_sync_cache(struct scsi_disk *sdkp)
 
 	if (res) {
 		sd_print_result(sdkp, res);
+
 		if (driver_byte(res) & DRIVER_SENSE)
 			sd_print_sense_hdr(sdkp, &sshdr);
+		/* we need to evaluate the error return  */
+		if (scsi_sense_valid(&sshdr) &&
+			/* 0x3a is medium not present */
+			sshdr.asc == 0x3a)
+				/* this is no error here */
+				return 0;
+
+		switch (host_byte(res)) {
+		/* ignore errors due to racing a disconnection */
+		case DID_BAD_TARGET:
+		case DID_NO_CONNECT:
+			return 0;
+		/* signal the upper layer it might try again */
+		case DID_BUS_BUSY:
+		case DID_IMM_RETRY:
+		case DID_REQUEUE:
+		case DID_SOFT_ERROR:
+			return -EBUSY;
+		default:
+			return -EIO;
+		}
 	}
-
-	if (res)
-		return -EIO;
 	return 0;
 }
 
@@ -3061,9 +3080,17 @@ static int sd_start_stop_device(struct scsi_disk *sdkp, int start)
 		sd_print_result(sdkp, res);
 		if (driver_byte(res) & DRIVER_SENSE)
 			sd_print_sense_hdr(sdkp, &sshdr);
+		if (scsi_sense_valid(&sshdr) &&
+			/* 0x3a is medium not present */
+			sshdr.asc == 0x3a)
+			res = 0;
 	}
 
-	return res;
+	/* SCSI error codes must not go to the generic layer */
+	if (res)
+		return -EIO;
+
+	return 0;
 }
 
 /*
@@ -3081,7 +3108,7 @@ static void sd_shutdown(struct device *dev)
 	if (pm_runtime_suspended(dev))
 		goto exit;
 
-	if (sdkp->WCE) {
+	if (sdkp->WCE && sdkp->media_present) {
 		sd_printk(KERN_NOTICE, sdkp, "Synchronizing SCSI cache\n");
 		sd_sync_cache(sdkp);
 	}
@@ -3095,7 +3122,7 @@ exit:
 	scsi_disk_put(sdkp);
 }
 
-static int sd_suspend(struct device *dev)
+static int sd_suspend_common(struct device *dev, bool ignore_stop_errors)
 {
 	struct scsi_disk *sdkp = scsi_disk_get_from_dev(dev);
 	int ret = 0;
@@ -3103,16 +3130,23 @@ static int sd_suspend(struct device *dev)
 	if (!sdkp)
 		return 0;	/* this can happen */
 
-	if (sdkp->WCE) {
+	if (sdkp->WCE && sdkp->media_present) {
 		sd_printk(KERN_NOTICE, sdkp, "Synchronizing SCSI cache\n");
 		ret = sd_sync_cache(sdkp);
-		if (ret)
+		if (ret) {
+			/* ignore OFFLINE device */
+			if (ret == -ENODEV)
+				ret = 0;
 			goto done;
+		}
 	}
 
 	if (sdkp->device->manage_start_stop) {
 		sd_printk(KERN_NOTICE, sdkp, "Stopping disk\n");
+		/* an error is not worth aborting a system sleep */
 		ret = sd_start_stop_device(sdkp, 0);
+		if (ignore_stop_errors)
+			ret = 0;
 	}
 
 done:
@@ -3120,6 +3154,16 @@ done:
 	return ret;
 }
 
+static int sd_suspend_system(struct device *dev)
+{
+	return sd_suspend_common(dev, true);
+}
+
+static int sd_suspend_runtime(struct device *dev)
+{
+	return sd_suspend_common(dev, false);
+}
+
 static int sd_resume(struct device *dev)
 {
 	struct scsi_disk *sdkp = scsi_disk_get_from_dev(dev);
-- 
cgit 


From c712495e687e221b00bddae96247dbf6ffbc6200 Mon Sep 17 00:00:00 2001
From: Chris Leech <cleech@redhat.com>
Date: Thu, 26 Sep 2013 09:09:44 -0700
Subject: [SCSI] iscsi_tcp: consider session state in iscsi_sw_sk_state_check

It seems some iSCSI targets (including the Linux kernel target) close
the TCP connection from the target side immediately after processing a
session logout.

When a TCP FIN comes in right after the iSCSI logout response,
iscsi_sw_sk_state_check sees the local socket as not yet being in
CLOSE_WAIT or CLOSE and logs an error.  But the initiator would close
the connection right after processing the logout response anyway, and
the error is confusing to admins who just requested that the session be
shut down.

This adds a check of the session state, and suppresses the error if we
are in the process of logging out.

Signed-off-by: Chris Leech <cleech@redhat.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/iscsi_tcp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/iscsi_tcp.c b/drivers/scsi/iscsi_tcp.c
index 9e2588a6881c..add6d1566ec8 100644
--- a/drivers/scsi/iscsi_tcp.c
+++ b/drivers/scsi/iscsi_tcp.c
@@ -116,6 +116,7 @@ static inline int iscsi_sw_sk_state_check(struct sock *sk)
 	struct iscsi_conn *conn = sk->sk_user_data;
 
 	if ((sk->sk_state == TCP_CLOSE_WAIT || sk->sk_state == TCP_CLOSE) &&
+	    (conn->session->state != ISCSI_STATE_LOGGING_OUT) &&
 	    !atomic_read(&sk->sk_rmem_alloc)) {
 		ISCSI_SW_TCP_DBG(conn, "TCP_CLOSE|TCP_CLOSE_WAIT\n");
 		iscsi_conn_failure(conn, ISCSI_ERR_TCP_CONN_CLOSE);
-- 
cgit 


From a9a923e55ede94ddbf5b870b0f057da8b7cee1b9 Mon Sep 17 00:00:00 2001
From: Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>
Date: Tue, 3 Sep 2013 15:09:42 +0530
Subject: [SCSI] pm80xx: Device id changes to support series 8 controllers.

Updated pci id table with device, vendor, subdevice and subvendor ids
for 8074, 8076, 8077 SAS/SATA 12G controllers. Added 12G related macros.

Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/pm8001/pm8001_defs.h |  5 ++++-
 drivers/scsi/pm8001/pm8001_init.c | 32 +++++++++++++++++++++++++++++++-
 drivers/scsi/pm8001/pm8001_sas.h  |  3 +++
 drivers/scsi/pm8001/pm80xx_hwi.c  | 25 ++++++++++++++++++++-----
 drivers/scsi/pm8001/pm80xx_hwi.h  |  9 +++++----
 5 files changed, 63 insertions(+), 11 deletions(-)

diff --git a/drivers/scsi/pm8001/pm8001_defs.h b/drivers/scsi/pm8001/pm8001_defs.h
index 479c5a7a863a..4bb304d379da 100644
--- a/drivers/scsi/pm8001/pm8001_defs.h
+++ b/drivers/scsi/pm8001/pm8001_defs.h
@@ -46,7 +46,10 @@ enum chip_flavors {
 	chip_8008,
 	chip_8009,
 	chip_8018,
-	chip_8019
+	chip_8019,
+	chip_8074,
+	chip_8076,
+	chip_8077
 };
 
 enum phy_speed {
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index f7c189606b84..93e2d9e9d2b3 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -54,6 +54,9 @@ static const struct pm8001_chip_info pm8001_chips[] = {
 	[chip_8009] = {1,  8, &pm8001_80xx_dispatch,},
 	[chip_8018] = {0,  16, &pm8001_80xx_dispatch,},
 	[chip_8019] = {1,  16, &pm8001_80xx_dispatch,},
+	[chip_8074] = {0,  8, &pm8001_80xx_dispatch,},
+	[chip_8076] = {0,  16, &pm8001_80xx_dispatch,},
+	[chip_8077] = {0,  16, &pm8001_80xx_dispatch,},
 };
 static int pm8001_id;
 
@@ -1037,6 +1040,12 @@ static struct pci_device_id pm8001_pci_table[] = {
 	{ PCI_VDEVICE(ADAPTEC2, 0x8009), chip_8009 },
 	{ PCI_VDEVICE(PMC_Sierra, 0x8019), chip_8019 },
 	{ PCI_VDEVICE(ADAPTEC2, 0x8019), chip_8019 },
+	{ PCI_VDEVICE(PMC_Sierra, 0x8074), chip_8074 },
+	{ PCI_VDEVICE(ADAPTEC2, 0x8074), chip_8074 },
+	{ PCI_VDEVICE(PMC_Sierra, 0x8076), chip_8076 },
+	{ PCI_VDEVICE(ADAPTEC2, 0x8076), chip_8076 },
+	{ PCI_VDEVICE(PMC_Sierra, 0x8077), chip_8077 },
+	{ PCI_VDEVICE(ADAPTEC2, 0x8077), chip_8077 },
 	{ PCI_VENDOR_ID_ADAPTEC2, 0x8081,
 		PCI_VENDOR_ID_ADAPTEC2, 0x0400, 0, 0, chip_8001 },
 	{ PCI_VENDOR_ID_ADAPTEC2, 0x8081,
@@ -1057,6 +1066,24 @@ static struct pci_device_id pm8001_pci_table[] = {
 		PCI_VENDOR_ID_ADAPTEC2, 0x0016, 0, 0, chip_8019 },
 	{ PCI_VENDOR_ID_ADAPTEC2, 0x8089,
 		PCI_VENDOR_ID_ADAPTEC2, 0x1600, 0, 0, chip_8019 },
+	{ PCI_VENDOR_ID_ADAPTEC2, 0x8074,
+		PCI_VENDOR_ID_ADAPTEC2, 0x0800, 0, 0, chip_8074 },
+	{ PCI_VENDOR_ID_ADAPTEC2, 0x8076,
+		PCI_VENDOR_ID_ADAPTEC2, 0x1600, 0, 0, chip_8076 },
+	{ PCI_VENDOR_ID_ADAPTEC2, 0x8077,
+		PCI_VENDOR_ID_ADAPTEC2, 0x1600, 0, 0, chip_8077 },
+	{ PCI_VENDOR_ID_ADAPTEC2, 0x8074,
+		PCI_VENDOR_ID_ADAPTEC2, 0x0008, 0, 0, chip_8074 },
+	{ PCI_VENDOR_ID_ADAPTEC2, 0x8076,
+		PCI_VENDOR_ID_ADAPTEC2, 0x0016, 0, 0, chip_8076 },
+	{ PCI_VENDOR_ID_ADAPTEC2, 0x8077,
+		PCI_VENDOR_ID_ADAPTEC2, 0x0016, 0, 0, chip_8077 },
+	{ PCI_VENDOR_ID_ADAPTEC2, 0x8076,
+		PCI_VENDOR_ID_ADAPTEC2, 0x0808, 0, 0, chip_8076 },
+	{ PCI_VENDOR_ID_ADAPTEC2, 0x8077,
+		PCI_VENDOR_ID_ADAPTEC2, 0x0808, 0, 0, chip_8077 },
+	{ PCI_VENDOR_ID_ADAPTEC2, 0x8074,
+		PCI_VENDOR_ID_ADAPTEC2, 0x0404, 0, 0, chip_8074 },
 	{} /* terminate list */
 };
 
@@ -1108,8 +1135,11 @@ module_init(pm8001_init);
 module_exit(pm8001_exit);
 
 MODULE_AUTHOR("Jack Wang <jack_wang@usish.com>");
+MODULE_AUTHOR("Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>");
+MODULE_AUTHOR("Sangeetha Gnanasekaran <Sangeetha.Gnanasekaran@pmcs.com>");
 MODULE_DESCRIPTION(
-		"PMC-Sierra PM8001/8081/8088/8089 SAS/SATA controller driver");
+		"PMC-Sierra PM8001/8081/8088/8089/8074/8076/8077 "
+		"SAS/SATA controller driver");
 MODULE_VERSION(DRV_VERSION);
 MODULE_LICENSE("GPL");
 MODULE_DEVICE_TABLE(pci, pm8001_pci_table);
diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h
index 570819464d90..68e1147e3cec 100644
--- a/drivers/scsi/pm8001/pm8001_sas.h
+++ b/drivers/scsi/pm8001/pm8001_sas.h
@@ -104,6 +104,9 @@ do {						\
 
 
 #define DEV_IS_EXPANDER(type)	((type == SAS_EDGE_EXPANDER_DEVICE) || (type == SAS_FANOUT_EXPANDER_DEVICE))
+#define IS_SPCV_12G(dev)	((dev->device == 0X8074)		\
+				|| (dev->device == 0X8076)		\
+				|| (dev->device == 0X8077))
 
 #define PM8001_NAME_LENGTH		32/* generic length of strings */
 extern struct list_head hba_list;
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index 9f91030211e8..6f836d18f269 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -430,7 +430,11 @@ static int mpi_init_check(struct pm8001_hba_info *pm8001_ha)
 	table is updated */
 	pm8001_cw32(pm8001_ha, 0, MSGU_IBDB_SET, SPCv_MSGU_CFG_TABLE_UPDATE);
 	/* wait until Inbound DoorBell Clear Register toggled */
-	max_wait_count = 2 * 1000 * 1000;/* 2 sec for spcv/ve */
+	if (IS_SPCV_12G(pm8001_ha->pdev)) {
+		max_wait_count = 4 * 1000 * 1000;/* 4 sec */
+	} else {
+		max_wait_count = 2 * 1000 * 1000;/* 2 sec */
+	}
 	do {
 		udelay(1);
 		value = pm8001_cr32(pm8001_ha, 0, MSGU_IBDB_SET);
@@ -913,7 +917,11 @@ static int mpi_uninit_check(struct pm8001_hba_info *pm8001_ha)
 	pm8001_cw32(pm8001_ha, 0, MSGU_IBDB_SET, SPCv_MSGU_CFG_TABLE_RESET);
 
 	/* wait until Inbound DoorBell Clear Register toggled */
-	max_wait_count = 2 * 1000 * 1000;	/* 2 sec for spcv/ve */
+	if (IS_SPCV_12G(pm8001_ha->pdev)) {
+		max_wait_count = 4 * 1000 * 1000;/* 4 sec */
+	} else {
+		max_wait_count = 2 * 1000 * 1000;/* 2 sec */
+	}
 	do {
 		udelay(1);
 		value = pm8001_cr32(pm8001_ha, 0, MSGU_IBDB_SET);
@@ -3941,9 +3949,16 @@ pm80xx_chip_phy_start_req(struct pm8001_hba_info *pm8001_ha, u8 phy_id)
 	 ** [14]	0b disable spin up hold; 1b enable spin up hold
 	 ** [15] ob no change in current PHY analig setup 1b enable using SPAST
 	 */
-	payload.ase_sh_lm_slr_phyid = cpu_to_le32(SPINHOLD_DISABLE |
-			LINKMODE_AUTO | LINKRATE_15 |
-			LINKRATE_30 | LINKRATE_60 | phy_id);
+	if (!IS_SPCV_12G(pm8001_ha->pdev))
+		payload.ase_sh_lm_slr_phyid = cpu_to_le32(SPINHOLD_DISABLE |
+				LINKMODE_AUTO | LINKRATE_15 |
+				LINKRATE_30 | LINKRATE_60 | phy_id);
+	else
+		payload.ase_sh_lm_slr_phyid = cpu_to_le32(SPINHOLD_DISABLE |
+				LINKMODE_AUTO | LINKRATE_15 |
+				LINKRATE_30 | LINKRATE_60 | LINKRATE_120 |
+				phy_id);
+
 	/* SSC Disable and SAS Analog ST configuration */
 	/**
 	payload.ase_sh_lm_slr_phyid =
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.h b/drivers/scsi/pm8001/pm80xx_hwi.h
index 2b760ba75d7b..9a9116d43566 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.h
+++ b/drivers/scsi/pm8001/pm80xx_hwi.h
@@ -168,6 +168,7 @@
 #define LINKRATE_15			(0x01 << 8)
 #define LINKRATE_30			(0x02 << 8)
 #define LINKRATE_60			(0x06 << 8)
+#define LINKRATE_120			(0x08 << 8)
 
 /* Thermal related */
 #define	THERMAL_ENABLE			0x1
@@ -1223,10 +1224,10 @@ typedef struct SASProtocolTimerConfig SASProtocolTimerConfig_t;
 
 /* MSGU CONFIGURATION TABLE*/
 
-#define SPCv_MSGU_CFG_TABLE_UPDATE		0x01
-#define SPCv_MSGU_CFG_TABLE_RESET		0x02
-#define SPCv_MSGU_CFG_TABLE_FREEZE		0x04
-#define SPCv_MSGU_CFG_TABLE_UNFREEZE		0x08
+#define SPCv_MSGU_CFG_TABLE_UPDATE		0x001
+#define SPCv_MSGU_CFG_TABLE_RESET		0x002
+#define SPCv_MSGU_CFG_TABLE_FREEZE		0x004
+#define SPCv_MSGU_CFG_TABLE_UNFREEZE		0x008
 #define MSGU_IBDB_SET				0x00
 #define MSGU_HOST_INT_STATUS			0x08
 #define MSGU_HOST_INT_MASK			0x0C
-- 
cgit 


From cb993e5d50dd82e3d675225e2eff3c77951682b0 Mon Sep 17 00:00:00 2001
From: Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>
Date: Tue, 17 Sep 2013 14:37:14 +0530
Subject: [SCSI] pm80xx: Indirect SMP request fix.

Fix for indirect data transfer mode in case of SMP request.

Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/pm8001/pm80xx_hwi.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index 6f836d18f269..8bac5aeaa804 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -3492,8 +3492,6 @@ static int pm80xx_chip_smp_req(struct pm8001_hba_info *pm8001_ha,
 	else
 		pm8001_ha->smp_exp_mode = SMP_INDIRECT;
 
-	/* DIRECT MODE support only in spcv/ve */
-	pm8001_ha->smp_exp_mode = SMP_DIRECT;
 
 	tmp_addr = cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_req));
 	preq_dma_addr = (char *)phys_to_virt(tmp_addr);
@@ -3509,7 +3507,7 @@ static int pm80xx_chip_smp_req(struct pm8001_hba_info *pm8001_ha,
 		/* exclude top 4 bytes for SMP req header */
 		smp_cmd.long_smp_req.long_req_addr =
 			cpu_to_le64((u64)sg_dma_address
-				(&task->smp_task.smp_req) - 4);
+				(&task->smp_task.smp_req) + 4);
 		/* exclude 4 bytes for SMP req header and CRC */
 		smp_cmd.long_smp_req.long_req_size =
 			cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_req)-8);
-- 
cgit 


From 966fdcff8eb78cce81da8f5adc5b7fe601b53d18 Mon Sep 17 00:00:00 2001
From: Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>
Date: Wed, 18 Sep 2013 12:54:41 +0530
Subject: [SCSI] pm80xx: Display controller BIOS version.

Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/pm8001/pm8001_ctl.c | 34 ++++++++++++++++++++++++++++++++++
 drivers/scsi/pm8001/pm8001_ctl.h |  2 ++
 2 files changed, 36 insertions(+)

diff --git a/drivers/scsi/pm8001/pm8001_ctl.c b/drivers/scsi/pm8001/pm8001_ctl.c
index d99f41c2ca13..5a19e1930b4b 100644
--- a/drivers/scsi/pm8001/pm8001_ctl.c
+++ b/drivers/scsi/pm8001/pm8001_ctl.c
@@ -308,6 +308,39 @@ static ssize_t pm8001_ctl_aap_log_show(struct device *cdev,
 	return str - buf;
 }
 static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL);
+/**
+ * pm8001_ctl_bios_version_show - Bios version Display
+ * @cdev:pointer to embedded class device
+ * @buf:the buffer returned
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t pm8001_ctl_bios_version_show(struct device *cdev,
+	struct device_attribute *attr, char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
+	struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
+	char *str = buf;
+	void *virt_addr;
+	int bios_index;
+	DECLARE_COMPLETION_ONSTACK(completion);
+	struct pm8001_ioctl_payload payload;
+
+	pm8001_ha->nvmd_completion = &completion;
+	payload.minor_function = 7;
+	payload.offset = 0;
+	payload.length = 4096;
+	payload.func_specific = kzalloc(4096, GFP_KERNEL);
+	PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload);
+	wait_for_completion(&completion);
+	virt_addr = pm8001_ha->memoryMap.region[NVMD].virt_ptr;
+	for (bios_index = BIOSOFFSET; bios_index < BIOS_OFFSET_LIMIT;
+		bios_index++)
+		str += sprintf(str, "%c",
+			*((u8 *)((u8 *)virt_addr+bios_index)));
+	return str - buf;
+}
+static DEVICE_ATTR(bios_version, S_IRUGO, pm8001_ctl_bios_version_show, NULL);
 /**
  * pm8001_ctl_aap_log_show - IOP event log
  * @cdev: pointer to embedded class device
@@ -609,6 +642,7 @@ struct device_attribute *pm8001_host_attrs[] = {
 	&dev_attr_sas_spec_support,
 	&dev_attr_logging_level,
 	&dev_attr_host_sas_address,
+	&dev_attr_bios_version,
 	NULL,
 };
 
diff --git a/drivers/scsi/pm8001/pm8001_ctl.h b/drivers/scsi/pm8001/pm8001_ctl.h
index 63ad4aa0c422..c6d8fdd3b9b9 100644
--- a/drivers/scsi/pm8001/pm8001_ctl.h
+++ b/drivers/scsi/pm8001/pm8001_ctl.h
@@ -45,6 +45,8 @@
 #define HEADER_LEN			28
 #define SIZE_OFFSET			16
 
+#define BIOSOFFSET			56
+#define BIOS_OFFSET_LIMIT		61
 
 #define FLASH_OK                        0x000000
 #define FAIL_OPEN_BIOS_FILE             0x000100
-- 
cgit 


From e912457bb8a2fc56e7036c5837e2947b430e93e1 Mon Sep 17 00:00:00 2001
From: Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>
Date: Tue, 17 Sep 2013 16:58:10 +0530
Subject: [SCSI] pm80xx: Set device state response logic fix.

Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/pm8001/pm8001_hwi.c | 6 ++++--
 drivers/scsi/pm8001/pm8001_sas.c | 9 ++++++++-
 2 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index 4a2195752198..4c9c220d1726 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -3087,8 +3087,8 @@ void pm8001_mpi_set_dev_state_resp(struct pm8001_hba_info *pm8001_ha,
 	struct pm8001_device *pm8001_dev = ccb->device;
 	u32 status = le32_to_cpu(pPayload->status);
 	u32 device_id = le32_to_cpu(pPayload->device_id);
-	u8 pds = le32_to_cpu(pPayload->pds_nds) | PDS_BITS;
-	u8 nds = le32_to_cpu(pPayload->pds_nds) | NDS_BITS;
+	u8 pds = le32_to_cpu(pPayload->pds_nds) & PDS_BITS;
+	u8 nds = le32_to_cpu(pPayload->pds_nds) & NDS_BITS;
 	PM8001_MSG_DBG(pm8001_ha, pm8001_printk("Set device id = 0x%x state "
 		"from 0x%x to 0x%x status = 0x%x!\n",
 		device_id, pds, nds, status));
@@ -4700,6 +4700,8 @@ int pm8001_chip_ssp_tm_req(struct pm8001_hba_info *pm8001_ha,
 	sspTMCmd.tmf = cpu_to_le32(tmf->tmf);
 	memcpy(sspTMCmd.lun, task->ssp_task.LUN, 8);
 	sspTMCmd.tag = cpu_to_le32(ccb->ccb_tag);
+	if (pm8001_ha->chip_id != chip_8001)
+		sspTMCmd.ds_ads_m = 0x08;
 	circularQ = &pm8001_ha->inbnd_q_tbl[0];
 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sspTMCmd, 0);
 	return ret;
diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index a85d73de7c80..f4eb18e51631 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -447,7 +447,6 @@ static int pm8001_task_exec(struct sas_task *task, const int num,
 			break;
 		case SAS_PROTOCOL_SATA:
 		case SAS_PROTOCOL_STP:
-		case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP:
 			rc = pm8001_task_prep_ata(pm8001_ha, ccb);
 			break;
 		default:
@@ -704,6 +703,8 @@ static int pm8001_exec_internal_tmf_task(struct domain_device *dev,
 	int res, retry;
 	struct sas_task *task = NULL;
 	struct pm8001_hba_info *pm8001_ha = pm8001_find_ha_by_dev(dev);
+	struct pm8001_device *pm8001_dev = dev->lldd_dev;
+	DECLARE_COMPLETION_ONSTACK(completion_setstate);
 
 	for (retry = 0; retry < 3; retry++) {
 		task = sas_alloc_slow_task(GFP_KERNEL);
@@ -729,6 +730,12 @@ static int pm8001_exec_internal_tmf_task(struct domain_device *dev,
 			goto ex_err;
 		}
 		wait_for_completion(&task->slow_task->completion);
+		if (pm8001_ha->chip_id != chip_8001) {
+			pm8001_dev->setds_completion = &completion_setstate;
+				PM8001_CHIP_DISP->set_dev_state_req(pm8001_ha,
+					pm8001_dev, 0x01);
+			wait_for_completion(&completion_setstate);
+		}
 		res = -TMF_RESP_FUNC_FAILED;
 		/* Even TMF timed out, return direct. */
 		if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) {
-- 
cgit 


From f9cd6cbd80d1d5963ffd0eab3970235cd4205984 Mon Sep 17 00:00:00 2001
From: Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>
Date: Wed, 18 Sep 2013 11:12:59 +0530
Subject: [SCSI] pm80xx: Queue rotation logic for inbound and outbound queues.

Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/pm8001/pm80xx_hwi.c | 31 +++++++++++++------------------
 1 file changed, 13 insertions(+), 18 deletions(-)

diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index 8bac5aeaa804..fa06f24e1656 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -3612,8 +3612,7 @@ static int pm80xx_chip_ssp_io_req(struct pm8001_hba_info *pm8001_ha,
 	int ret;
 	u64 phys_addr;
 	struct inbound_queue_table *circularQ;
-	static u32 inb;
-	static u32 outb;
+	u32 q_index;
 	u32 opc = OPC_INB_SSPINIIOSTART;
 	memset(&ssp_cmd, 0, sizeof(ssp_cmd));
 	memcpy(ssp_cmd.ssp_iu.lun, task->ssp_task.LUN, 8);
@@ -3632,7 +3631,8 @@ static int pm80xx_chip_ssp_io_req(struct pm8001_hba_info *pm8001_ha,
 	ssp_cmd.ssp_iu.efb_prio_attr |= (task->ssp_task.task_attr & 7);
 	memcpy(ssp_cmd.ssp_iu.cdb, task->ssp_task.cmd->cmnd,
 		       task->ssp_task.cmd->cmd_len);
-	circularQ = &pm8001_ha->inbnd_q_tbl[0];
+	q_index = (u32) (pm8001_dev->id & 0x00ffffff) % PM8001_MAX_INB_NUM;
+	circularQ = &pm8001_ha->inbnd_q_tbl[q_index];
 
 	/* Check if encryption is set */
 	if (pm8001_ha->chip->encrypt &&
@@ -3680,7 +3680,7 @@ static int pm80xx_chip_ssp_io_req(struct pm8001_hba_info *pm8001_ha,
 	} else {
 		PM8001_IO_DBG(pm8001_ha, pm8001_printk(
 			"Sending Normal SAS command 0x%x inb q %x\n",
-			task->ssp_task.cmd->cmnd[0], inb));
+			task->ssp_task.cmd->cmnd[0], q_index));
 		/* fill in PRD (scatter/gather) table, if any */
 		if (task->num_scatter > 1) {
 			pm8001_chip_make_sg(task->scatter, ccb->n_elem,
@@ -3706,11 +3706,9 @@ static int pm80xx_chip_ssp_io_req(struct pm8001_hba_info *pm8001_ha,
 			ssp_cmd.esgl = 0;
 		}
 	}
-	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &ssp_cmd, outb++);
-
-	/* rotate the outb queue */
-	outb = outb%PM8001_MAX_SPCV_OUTB_NUM;
-
+	q_index = (u32) (pm8001_dev->id & 0x00ffffff) % PM8001_MAX_OUTB_NUM;
+	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc,
+						&ssp_cmd, q_index);
 	return ret;
 }
 
@@ -3722,8 +3720,7 @@ static int pm80xx_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
 	struct pm8001_device *pm8001_ha_dev = dev->lldd_dev;
 	u32 tag = ccb->ccb_tag;
 	int ret;
-	static u32 inb;
-	static u32 outb;
+	u32 q_index;
 	struct sata_start_req sata_cmd;
 	u32 hdr_tag, ncg_tag = 0;
 	u64 phys_addr;
@@ -3733,7 +3730,8 @@ static int pm80xx_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
 	unsigned long flags;
 	u32 opc = OPC_INB_SATA_HOST_OPSTART;
 	memset(&sata_cmd, 0, sizeof(sata_cmd));
-	circularQ = &pm8001_ha->inbnd_q_tbl[0];
+	q_index = (u32) (pm8001_ha_dev->id & 0x00ffffff) % PM8001_MAX_INB_NUM;
+	circularQ = &pm8001_ha->inbnd_q_tbl[q_index];
 
 	if (task->data_dir == PCI_DMA_NONE) {
 		ATAP = 0x04; /* no data*/
@@ -3814,7 +3812,7 @@ static int pm80xx_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
 	} else {
 		PM8001_IO_DBG(pm8001_ha, pm8001_printk(
 			"Sending Normal SATA command 0x%x inb %x\n",
-			sata_cmd.sata_fis.command, inb));
+			sata_cmd.sata_fis.command, q_index));
 		/* dad (bit 0-1) is 0 */
 		sata_cmd.ncqtag_atap_dir_m_dad =
 			cpu_to_le32(((ncg_tag & 0xff)<<16) |
@@ -3911,12 +3909,9 @@ static int pm80xx_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
 			}
 		}
 	}
-
+	q_index = (u32) (pm8001_ha_dev->id & 0x00ffffff) % PM8001_MAX_OUTB_NUM;
 	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc,
-						&sata_cmd, outb++);
-
-	/* rotate the outb queue */
-	outb = outb%PM8001_MAX_SPCV_OUTB_NUM;
+						&sata_cmd, q_index);
 	return ret;
 }
 
-- 
cgit 


From 0ecdf00ba6e50eaa452356d0d4e79657dab702a4 Mon Sep 17 00:00:00 2001
From: Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>
Date: Wed, 18 Sep 2013 11:14:54 +0530
Subject: [SCSI] pm80xx: 4G boundary fix.

Firmware is having an issue.  When a single IO request crosses
4G boundary, system will crash.  To avoid the issue single sg is
converted into extended sg.

Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/pm8001/pm80xx_hwi.c | 103 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 101 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index fa06f24e1656..37ddc5dda7bb 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -3610,7 +3610,8 @@ static int pm80xx_chip_ssp_io_req(struct pm8001_hba_info *pm8001_ha,
 	struct ssp_ini_io_start_req ssp_cmd;
 	u32 tag = ccb->ccb_tag;
 	int ret;
-	u64 phys_addr;
+	u64 phys_addr, start_addr, end_addr;
+	u32 end_addr_high, end_addr_low;
 	struct inbound_queue_table *circularQ;
 	u32 q_index;
 	u32 opc = OPC_INB_SSPINIIOSTART;
@@ -3664,6 +3665,30 @@ static int pm80xx_chip_ssp_io_req(struct pm8001_hba_info *pm8001_ha,
 				cpu_to_le32(upper_32_bits(dma_addr));
 			ssp_cmd.enc_len = cpu_to_le32(task->total_xfer_len);
 			ssp_cmd.enc_esgl = 0;
+			/* Check 4G Boundary */
+			start_addr = cpu_to_le64(dma_addr);
+			end_addr = (start_addr + ssp_cmd.enc_len) - 1;
+			end_addr_low = cpu_to_le32(lower_32_bits(end_addr));
+			end_addr_high = cpu_to_le32(upper_32_bits(end_addr));
+			if (end_addr_high != ssp_cmd.enc_addr_high) {
+				PM8001_FAIL_DBG(pm8001_ha,
+					pm8001_printk("The sg list address "
+					"start_addr=0x%016llx data_len=0x%x "
+					"end_addr_high=0x%08x end_addr_low="
+					"0x%08x has crossed 4G boundary\n",
+						start_addr, ssp_cmd.enc_len,
+						end_addr_high, end_addr_low));
+				pm8001_chip_make_sg(task->scatter, 1,
+					ccb->buf_prd);
+				phys_addr = ccb->ccb_dma_handle +
+					offsetof(struct pm8001_ccb_info,
+						buf_prd[0]);
+				ssp_cmd.enc_addr_low =
+					cpu_to_le32(lower_32_bits(phys_addr));
+				ssp_cmd.enc_addr_high =
+					cpu_to_le32(upper_32_bits(phys_addr));
+				ssp_cmd.enc_esgl = cpu_to_le32(1<<31);
+			}
 		} else if (task->num_scatter == 0) {
 			ssp_cmd.enc_addr_low = 0;
 			ssp_cmd.enc_addr_high = 0;
@@ -3699,6 +3724,30 @@ static int pm80xx_chip_ssp_io_req(struct pm8001_hba_info *pm8001_ha,
 				cpu_to_le32(upper_32_bits(dma_addr));
 			ssp_cmd.len = cpu_to_le32(task->total_xfer_len);
 			ssp_cmd.esgl = 0;
+			/* Check 4G Boundary */
+			start_addr = cpu_to_le64(dma_addr);
+			end_addr = (start_addr + ssp_cmd.len) - 1;
+			end_addr_low = cpu_to_le32(lower_32_bits(end_addr));
+			end_addr_high = cpu_to_le32(upper_32_bits(end_addr));
+			if (end_addr_high != ssp_cmd.addr_high) {
+				PM8001_FAIL_DBG(pm8001_ha,
+					pm8001_printk("The sg list address "
+					"start_addr=0x%016llx data_len=0x%x "
+					"end_addr_high=0x%08x end_addr_low="
+					"0x%08x has crossed 4G boundary\n",
+						 start_addr, ssp_cmd.len,
+						 end_addr_high, end_addr_low));
+				pm8001_chip_make_sg(task->scatter, 1,
+					ccb->buf_prd);
+				phys_addr = ccb->ccb_dma_handle +
+					offsetof(struct pm8001_ccb_info,
+						 buf_prd[0]);
+				ssp_cmd.addr_low =
+					cpu_to_le32(lower_32_bits(phys_addr));
+				ssp_cmd.addr_high =
+					cpu_to_le32(upper_32_bits(phys_addr));
+				ssp_cmd.esgl = cpu_to_le32(1<<31);
+			}
 		} else if (task->num_scatter == 0) {
 			ssp_cmd.addr_low = 0;
 			ssp_cmd.addr_high = 0;
@@ -3723,7 +3772,8 @@ static int pm80xx_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
 	u32 q_index;
 	struct sata_start_req sata_cmd;
 	u32 hdr_tag, ncg_tag = 0;
-	u64 phys_addr;
+	u64 phys_addr, start_addr, end_addr;
+	u32 end_addr_high, end_addr_low;
 	u32 ATAP = 0x0;
 	u32 dir;
 	struct inbound_queue_table *circularQ;
@@ -3792,6 +3842,31 @@ static int pm80xx_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
 			sata_cmd.enc_addr_high = upper_32_bits(dma_addr);
 			sata_cmd.enc_len = cpu_to_le32(task->total_xfer_len);
 			sata_cmd.enc_esgl = 0;
+			/* Check 4G Boundary */
+			start_addr = cpu_to_le64(dma_addr);
+			end_addr = (start_addr + sata_cmd.enc_len) - 1;
+			end_addr_low = cpu_to_le32(lower_32_bits(end_addr));
+			end_addr_high = cpu_to_le32(upper_32_bits(end_addr));
+			if (end_addr_high != sata_cmd.enc_addr_high) {
+				PM8001_FAIL_DBG(pm8001_ha,
+					pm8001_printk("The sg list address "
+					"start_addr=0x%016llx data_len=0x%x "
+					"end_addr_high=0x%08x end_addr_low"
+					"=0x%08x has crossed 4G boundary\n",
+						start_addr, sata_cmd.enc_len,
+						end_addr_high, end_addr_low));
+				pm8001_chip_make_sg(task->scatter, 1,
+					ccb->buf_prd);
+				phys_addr = ccb->ccb_dma_handle +
+						offsetof(struct pm8001_ccb_info,
+						buf_prd[0]);
+				sata_cmd.enc_addr_low =
+					lower_32_bits(phys_addr);
+				sata_cmd.enc_addr_high =
+					upper_32_bits(phys_addr);
+				sata_cmd.enc_esgl =
+					cpu_to_le32(1 << 31);
+			}
 		} else if (task->num_scatter == 0) {
 			sata_cmd.enc_addr_low = 0;
 			sata_cmd.enc_addr_high = 0;
@@ -3833,6 +3908,30 @@ static int pm80xx_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
 			sata_cmd.addr_high = upper_32_bits(dma_addr);
 			sata_cmd.len = cpu_to_le32(task->total_xfer_len);
 			sata_cmd.esgl = 0;
+			/* Check 4G Boundary */
+			start_addr = cpu_to_le64(dma_addr);
+			end_addr = (start_addr + sata_cmd.len) - 1;
+			end_addr_low = cpu_to_le32(lower_32_bits(end_addr));
+			end_addr_high = cpu_to_le32(upper_32_bits(end_addr));
+			if (end_addr_high != sata_cmd.addr_high) {
+				PM8001_FAIL_DBG(pm8001_ha,
+					pm8001_printk("The sg list address "
+					"start_addr=0x%016llx data_len=0x%x"
+					"end_addr_high=0x%08x end_addr_low="
+					"0x%08x has crossed 4G boundary\n",
+						start_addr, sata_cmd.len,
+						end_addr_high, end_addr_low));
+				pm8001_chip_make_sg(task->scatter, 1,
+					ccb->buf_prd);
+				phys_addr = ccb->ccb_dma_handle +
+					offsetof(struct pm8001_ccb_info,
+					buf_prd[0]);
+				sata_cmd.addr_low =
+					lower_32_bits(phys_addr);
+				sata_cmd.addr_high =
+					upper_32_bits(phys_addr);
+				sata_cmd.esgl = cpu_to_le32(1 << 31);
+			}
 		} else if (task->num_scatter == 0) {
 			sata_cmd.addr_low = 0;
 			sata_cmd.addr_high = 0;
-- 
cgit 


From cb269c26ed027bea67f5961619ae43f480a4dd3d Mon Sep 17 00:00:00 2001
From: Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>
Date: Tue, 17 Sep 2013 16:47:21 +0530
Subject: [SCSI] pm80xx: Print SAS address of IO failed device.

[jejb: checkpatch fixes]
Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/pm8001/pm8001_hwi.c | 53 +++++++++++++++++++++++++++++++++++++++-
 drivers/scsi/pm8001/pm80xx_hwi.c | 51 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 103 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index 4c9c220d1726..7e879c5d0928 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -1868,6 +1868,13 @@ mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha , void *piomb)
 	if (unlikely(!t || !t->lldd_task || !t->dev))
 		return;
 	ts = &t->task_status;
+	/* Print sas address of IO failed device */
+	if ((status != IO_SUCCESS) && (status != IO_OVERFLOW) &&
+		(status != IO_UNDERFLOW))
+		PM8001_FAIL_DBG(pm8001_ha,
+			pm8001_printk("SAS Address of IO Failure Drive:"
+			"%016llx", SAS_ADDR(t->dev->sas_addr)));
+
 	switch (status) {
 	case IO_SUCCESS:
 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_SUCCESS"
@@ -2276,6 +2283,11 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
 	u32 param;
 	u32 status;
 	u32 tag;
+	int i, j;
+	u8 sata_addr_low[4];
+	u32 temp_sata_addr_low;
+	u8 sata_addr_hi[4];
+	u32 temp_sata_addr_hi;
 	struct sata_completion_resp *psataPayload;
 	struct task_status_struct *ts;
 	struct ata_task_resp *resp ;
@@ -2325,7 +2337,46 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
 			pm8001_printk("ts null\n"));
 		return;
 	}
-
+	/* Print sas address of IO failed device */
+	if ((status != IO_SUCCESS) && (status != IO_OVERFLOW) &&
+		(status != IO_UNDERFLOW)) {
+		if (!((t->dev->parent) &&
+			(DEV_IS_EXPANDER(t->dev->parent->dev_type)))) {
+			for (i = 0 , j = 4; j <= 7 && i <= 3; i++ , j++)
+				sata_addr_low[i] = pm8001_ha->sas_addr[j];
+			for (i = 0 , j = 0; j <= 3 && i <= 3; i++ , j++)
+				sata_addr_hi[i] = pm8001_ha->sas_addr[j];
+			memcpy(&temp_sata_addr_low, sata_addr_low,
+				sizeof(sata_addr_low));
+			memcpy(&temp_sata_addr_hi, sata_addr_hi,
+				sizeof(sata_addr_hi));
+			temp_sata_addr_hi = (((temp_sata_addr_hi >> 24) & 0xff)
+						|((temp_sata_addr_hi << 8) &
+						0xff0000) |
+						((temp_sata_addr_hi >> 8)
+						& 0xff00) |
+						((temp_sata_addr_hi << 24) &
+						0xff000000));
+			temp_sata_addr_low = ((((temp_sata_addr_low >> 24)
+						& 0xff) |
+						((temp_sata_addr_low << 8)
+						& 0xff0000) |
+						((temp_sata_addr_low >> 8)
+						& 0xff00) |
+						((temp_sata_addr_low << 24)
+						& 0xff000000)) +
+						pm8001_dev->attached_phy +
+						0x10);
+			PM8001_FAIL_DBG(pm8001_ha,
+				pm8001_printk("SAS Address of IO Failure Drive:"
+				"%08x%08x", temp_sata_addr_hi,
+					temp_sata_addr_low));
+		} else {
+			PM8001_FAIL_DBG(pm8001_ha,
+				pm8001_printk("SAS Address of IO Failure Drive:"
+				"%016llx", SAS_ADDR(t->dev->sas_addr)));
+		}
+	}
 	switch (status) {
 	case IO_SUCCESS:
 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_SUCCESS\n"));
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index 37ddc5dda7bb..0a2dc56ed9f6 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -1276,6 +1276,13 @@ mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha , void *piomb)
 	if (unlikely(!t || !t->lldd_task || !t->dev))
 		return;
 	ts = &t->task_status;
+	/* Print sas address of IO failed device */
+	if ((status != IO_SUCCESS) && (status != IO_OVERFLOW) &&
+		(status != IO_UNDERFLOW))
+		PM8001_FAIL_DBG(pm8001_ha,
+			pm8001_printk("SAS Address of IO Failure Drive"
+			":%016llx", SAS_ADDR(t->dev->sas_addr)));
+
 	switch (status) {
 	case IO_SUCCESS:
 		PM8001_IO_DBG(pm8001_ha,
@@ -1699,6 +1706,10 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
 	u32 param;
 	u32 status;
 	u32 tag;
+	int i, j;
+	u8 sata_addr_low[4];
+	u32 temp_sata_addr_low, temp_sata_addr_hi;
+	u8 sata_addr_hi[4];
 	struct sata_completion_resp *psataPayload;
 	struct task_status_struct *ts;
 	struct ata_task_resp *resp ;
@@ -1748,7 +1759,47 @@ mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
 			pm8001_printk("ts null\n"));
 		return;
 	}
+	/* Print sas address of IO failed device */
+	if ((status != IO_SUCCESS) && (status != IO_OVERFLOW) &&
+		(status != IO_UNDERFLOW)) {
+		if (!((t->dev->parent) &&
+			(DEV_IS_EXPANDER(t->dev->parent->dev_type)))) {
+			for (i = 0 , j = 4; i <= 3 && j <= 7; i++ , j++)
+				sata_addr_low[i] = pm8001_ha->sas_addr[j];
+			for (i = 0 , j = 0; i <= 3 && j <= 3; i++ , j++)
+				sata_addr_hi[i] = pm8001_ha->sas_addr[j];
+			memcpy(&temp_sata_addr_low, sata_addr_low,
+				sizeof(sata_addr_low));
+			memcpy(&temp_sata_addr_hi, sata_addr_hi,
+				sizeof(sata_addr_hi));
+			temp_sata_addr_hi = (((temp_sata_addr_hi >> 24) & 0xff)
+						|((temp_sata_addr_hi << 8) &
+						0xff0000) |
+						((temp_sata_addr_hi >> 8)
+						& 0xff00) |
+						((temp_sata_addr_hi << 24) &
+						0xff000000));
+			temp_sata_addr_low = ((((temp_sata_addr_low >> 24)
+						& 0xff) |
+						((temp_sata_addr_low << 8)
+						& 0xff0000) |
+						((temp_sata_addr_low >> 8)
+						& 0xff00) |
+						((temp_sata_addr_low << 24)
+						& 0xff000000)) +
+						pm8001_dev->attached_phy +
+						0x10);
+			PM8001_FAIL_DBG(pm8001_ha,
+				pm8001_printk("SAS Address of IO Failure Drive:"
+				"%08x%08x", temp_sata_addr_hi,
+					temp_sata_addr_low));
 
+		} else {
+			PM8001_FAIL_DBG(pm8001_ha,
+				pm8001_printk("SAS Address of IO Failure Drive:"
+				"%016llx", SAS_ADDR(t->dev->sas_addr)));
+		}
+	}
 	switch (status) {
 	case IO_SUCCESS:
 		PM8001_IO_DBG(pm8001_ha, pm8001_printk("IO_SUCCESS\n"));
-- 
cgit 


From 06f12f22cefdc2737b54fc986d9b82ec358cdbb8 Mon Sep 17 00:00:00 2001
From: Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>
Date: Tue, 17 Sep 2013 14:32:20 +0530
Subject: [SCSI] pm80xx: IButton security feature support for motherboard
 controllers.

Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/pm8001/pm80xx_hwi.c | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index 0a2dc56ed9f6..c8a4465b74a5 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -967,6 +967,7 @@ pm80xx_chip_soft_rst(struct pm8001_hba_info *pm8001_ha)
 {
 	u32 regval;
 	u32 bootloader_state;
+	u32 ibutton0, ibutton1;
 
 	/* Check if MPI is in ready state to reset */
 	if (mpi_uninit_check(pm8001_ha) != 0) {
@@ -1025,7 +1026,27 @@ pm80xx_chip_soft_rst(struct pm8001_hba_info *pm8001_ha)
 	if (-1 == check_fw_ready(pm8001_ha)) {
 		PM8001_FAIL_DBG(pm8001_ha,
 			pm8001_printk("Firmware is not ready!\n"));
-		return -EBUSY;
+		/* check iButton feature support for motherboard controller */
+		if (pm8001_ha->pdev->subsystem_vendor !=
+			PCI_VENDOR_ID_ADAPTEC2 &&
+			pm8001_ha->pdev->subsystem_vendor != 0) {
+			ibutton0 = pm8001_cr32(pm8001_ha, 0,
+					MSGU_HOST_SCRATCH_PAD_6);
+			ibutton1 = pm8001_cr32(pm8001_ha, 0,
+					MSGU_HOST_SCRATCH_PAD_7);
+			if (!ibutton0 && !ibutton1) {
+				PM8001_FAIL_DBG(pm8001_ha,
+					pm8001_printk("iButton Feature is"
+					" not Available!!!\n"));
+				return -EBUSY;
+			}
+			if (ibutton0 == 0xdeadbeef && ibutton1 == 0xdeadbeef) {
+				PM8001_FAIL_DBG(pm8001_ha,
+					pm8001_printk("CRC Check for iButton"
+					" Feature Failed!!!\n"));
+				return -EBUSY;
+			}
+		}
 	}
 	PM8001_INIT_DBG(pm8001_ha,
 		pm8001_printk("SPCv soft reset Complete\n"));
-- 
cgit 


From 279094079a442c19ff7e7c0fd9511d9404cb2518 Mon Sep 17 00:00:00 2001
From: Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>
Date: Wed, 18 Sep 2013 13:02:44 +0530
Subject: [SCSI] pm80xx: Phy settings support for motherboard controller.

Phy profile implementation to support phy settings feature
for motherboard controllers.

[jejb: checkpatch fixes]
Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/pm8001/pm8001_hwi.c  | 10 +++++++
 drivers/scsi/pm8001/pm8001_init.c | 29 +++++++++++++++++++
 drivers/scsi/pm8001/pm8001_sas.h  |  3 +-
 drivers/scsi/pm8001/pm80xx_hwi.c  | 61 +++++++++++++++++++++++++++++++++++++--
 drivers/scsi/pm8001/pm80xx_hwi.h  |  4 +++
 5 files changed, 104 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index 7e879c5d0928..9d1178bcf689 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -4831,6 +4831,16 @@ int pm8001_chip_get_nvmd_req(struct pm8001_hba_info *pm8001_ha,
 		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
 		break;
 	}
+	case IOP_RDUMP: {
+		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | IOP_RDUMP);
+		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->length);
+		nvmd_req.vpd_offset = cpu_to_le32(ioctl_payload->offset);
+		nvmd_req.resp_addr_hi =
+		cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
+		nvmd_req.resp_addr_lo =
+		cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
+		break;
+	}
 	default:
 		break;
 	}
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index 93e2d9e9d2b3..92a18c4d2ebb 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -667,6 +667,31 @@ static void pm8001_init_sas_add(struct pm8001_hba_info *pm8001_ha)
 #endif
 }
 
+/*
+ * pm8001_get_phy_settings_info : Read phy setting values.
+ * @pm8001_ha : our hba.
+ */
+void pm8001_get_phy_settings_info(struct pm8001_hba_info *pm8001_ha)
+{
+
+#ifdef PM8001_READ_VPD
+	/*OPTION ROM FLASH read for the SPC cards */
+	DECLARE_COMPLETION_ONSTACK(completion);
+	struct pm8001_ioctl_payload payload;
+
+	pm8001_ha->nvmd_completion = &completion;
+	/* SAS ADDRESS read from flash / EEPROM */
+	payload.minor_function = 6;
+	payload.offset = 0;
+	payload.length = 4096;
+	payload.func_specific = kzalloc(4096, GFP_KERNEL);
+	/* Read phy setting values from flash */
+	PM8001_CHIP_DISP->get_nvmd_req(pm8001_ha, &payload);
+	wait_for_completion(&completion);
+	pm8001_set_phy_profile(pm8001_ha, sizeof(u8), payload.func_specific);
+#endif
+}
+
 #ifdef PM8001_USE_MSIX
 /**
  * pm8001_setup_msix - enable MSI-X interrupt
@@ -847,6 +872,10 @@ static int pm8001_pci_probe(struct pci_dev *pdev,
 	}
 
 	pm8001_init_sas_add(pm8001_ha);
+	/* phy setting support for motherboard controller */
+	if (pdev->subsystem_vendor != PCI_VENDOR_ID_ADAPTEC2 &&
+		pdev->subsystem_vendor != 0)
+		pm8001_get_phy_settings_info(pm8001_ha);
 	pm8001_post_sas_ha_init(shost, chip);
 	rc = sas_register_ha(SHOST_TO_SAS_HA(shost));
 	if (rc)
diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h
index 68e1147e3cec..cbde11a57a92 100644
--- a/drivers/scsi/pm8001/pm8001_sas.h
+++ b/drivers/scsi/pm8001/pm8001_sas.h
@@ -632,7 +632,8 @@ struct pm8001_device *pm8001_find_dev(struct pm8001_hba_info *pm8001_ha,
 int pm80xx_set_thermal_config(struct pm8001_hba_info *pm8001_ha);
 
 int pm8001_bar4_shift(struct pm8001_hba_info *pm8001_ha, u32 shiftValue);
-
+void pm8001_set_phy_profile(struct pm8001_hba_info *pm8001_ha,
+	u32 length, u8 *buf);
 /* ctl shared API */
 extern struct device_attribute *pm8001_host_attrs[];
 
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index c8a4465b74a5..91cf4242a03d 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -3183,9 +3183,27 @@ static int mpi_flash_op_ext_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
 static int mpi_set_phy_profile_resp(struct pm8001_hba_info *pm8001_ha,
 			void *piomb)
 {
-	PM8001_MSG_DBG(pm8001_ha,
-			pm8001_printk(" pm80xx_addition_functionality\n"));
+	u8 page_code;
+	struct set_phy_profile_resp *pPayload =
+		(struct set_phy_profile_resp *)(piomb + 4);
+	u32 ppc_phyid = le32_to_cpu(pPayload->ppc_phyid);
+	u32 status = le32_to_cpu(pPayload->status);
 
+	page_code = (u8)((ppc_phyid & 0xFF00) >> 8);
+	if (status) {
+		/* status is FAILED */
+		PM8001_FAIL_DBG(pm8001_ha,
+			pm8001_printk("PhyProfile command failed  with status "
+			"0x%08X \n", status));
+		return -1;
+	} else {
+		if (page_code != SAS_PHY_ANALOG_SETTINGS_PAGE) {
+			PM8001_FAIL_DBG(pm8001_ha,
+				pm8001_printk("Invalid page code 0x%X\n",
+					page_code));
+			return -1;
+		}
+	}
 	return 0;
 }
 
@@ -4281,6 +4299,45 @@ pm80xx_chip_isr(struct pm8001_hba_info *pm8001_ha, u8 vec)
 	return IRQ_HANDLED;
 }
 
+void mpi_set_phy_profile_req(struct pm8001_hba_info *pm8001_ha,
+	u32 operation, u32 phyid, u32 length, u32 *buf)
+{
+	u32 tag , i, j = 0;
+	int rc;
+	struct set_phy_profile_req payload;
+	struct inbound_queue_table *circularQ;
+	u32 opc = OPC_INB_SET_PHY_PROFILE;
+
+	memset(&payload, 0, sizeof(payload));
+	rc = pm8001_tag_alloc(pm8001_ha, &tag);
+	if (rc)
+		PM8001_FAIL_DBG(pm8001_ha, pm8001_printk("Invalid tag\n"));
+	circularQ = &pm8001_ha->inbnd_q_tbl[0];
+	payload.tag = cpu_to_le32(tag);
+	payload.ppc_phyid = (((operation & 0xF) << 8) | (phyid  & 0xFF));
+	PM8001_INIT_DBG(pm8001_ha,
+		pm8001_printk(" phy profile command for phy %x ,length is %d\n",
+			payload.ppc_phyid, length));
+	for (i = length; i < (length + PHY_DWORD_LENGTH - 1); i++) {
+		payload.reserved[j] =  cpu_to_le32(*((u32 *)buf + i));
+		j++;
+	}
+	pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload, 0);
+}
+
+void pm8001_set_phy_profile(struct pm8001_hba_info *pm8001_ha,
+	u32 length, u8 *buf)
+{
+	u32 page_code, i;
+
+	page_code = SAS_PHY_ANALOG_SETTINGS_PAGE;
+	for (i = 0; i < pm8001_ha->chip->n_phy; i++) {
+		mpi_set_phy_profile_req(pm8001_ha,
+			SAS_PHY_ANALOG_SETTINGS_PAGE, i, length, (u32 *)buf);
+		length = length + PHY_DWORD_LENGTH;
+	}
+	PM8001_INIT_DBG(pm8001_ha, pm8001_printk("phy settings completed\n"));
+}
 const struct pm8001_dispatch pm8001_80xx_dispatch = {
 	.name			= "pmc80xx",
 	.chip_init		= pm80xx_chip_init,
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.h b/drivers/scsi/pm8001/pm80xx_hwi.h
index 9a9116d43566..872d5cff824f 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.h
+++ b/drivers/scsi/pm8001/pm80xx_hwi.h
@@ -170,6 +170,10 @@
 #define LINKRATE_60			(0x06 << 8)
 #define LINKRATE_120			(0x08 << 8)
 
+/* phy_profile */
+#define SAS_PHY_ANALOG_SETTINGS_PAGE	0x04
+#define PHY_DWORD_LENGTH		0xC
+
 /* Thermal related */
 #define	THERMAL_ENABLE			0x1
 #define	THERMAL_LOG_ENABLE		0x1
-- 
cgit 


From d078b5117f18dce57b895df640d9bf2614864829 Mon Sep 17 00:00:00 2001
From: Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>
Date: Wed, 4 Sep 2013 12:57:00 +0530
Subject: [SCSI] pm80xx: Firmware logging support.

Supports below logging facilities,
Inbound outbound queues dump.
Non fatal dump in case of IO failures.
Fatal dump in case of firmware failure.

[jejb: checkpatch spacing fixes]
Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/pm8001/pm8001_ctl.c  | 119 ++++++++++++++++++++
 drivers/scsi/pm8001/pm8001_ctl.h  |   4 +
 drivers/scsi/pm8001/pm8001_defs.h |   3 +-
 drivers/scsi/pm8001/pm8001_hwi.c  |  83 ++++++++++++++
 drivers/scsi/pm8001/pm8001_hwi.h  |   3 +
 drivers/scsi/pm8001/pm8001_init.c |   4 +
 drivers/scsi/pm8001/pm8001_sas.h  |  68 ++++++++++++
 drivers/scsi/pm8001/pm80xx_hwi.c  | 225 ++++++++++++++++++++++++++++++++++++++
 drivers/scsi/pm8001/pm80xx_hwi.h  |   2 +
 9 files changed, 510 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/pm8001/pm8001_ctl.c b/drivers/scsi/pm8001/pm8001_ctl.c
index 5a19e1930b4b..a04b4ff8c7f6 100644
--- a/drivers/scsi/pm8001/pm8001_ctl.c
+++ b/drivers/scsi/pm8001/pm8001_ctl.c
@@ -308,6 +308,84 @@ static ssize_t pm8001_ctl_aap_log_show(struct device *cdev,
 	return str - buf;
 }
 static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL);
+/**
+ * pm8001_ctl_ib_queue_log_show - Out bound Queue log
+ * @cdev:pointer to embedded class device
+ * @buf: the buffer returned
+ * A sysfs 'read-only' shost attribute.
+ */
+static ssize_t pm8001_ctl_ib_queue_log_show(struct device *cdev,
+	struct device_attribute *attr, char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
+	struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
+	int offset;
+	char *str = buf;
+	int start = 0;
+#define IB_MEMMAP(c)		\
+		(*(u32 *)((u8 *)pm8001_ha->		\
+		memoryMap.region[IB].virt_ptr +		\
+		pm8001_ha->evtlog_ib_offset + (c)))
+
+	for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
+		if (pm8001_ha->chip_id != chip_8001)
+			str += sprintf(str, "0x%08x\n", IB_MEMMAP(start));
+		else
+			str += sprintf(str, "0x%08x\n", IB_MEMMAP(start));
+		start = start + 4;
+	}
+	pm8001_ha->evtlog_ib_offset += SYSFS_OFFSET;
+	if ((((pm8001_ha->evtlog_ib_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0)
+		&& (pm8001_ha->chip_id != chip_8001))
+		pm8001_ha->evtlog_ib_offset = 0;
+	if ((((pm8001_ha->evtlog_ib_offset) % (PM8001_IB_OB_QUEUE_SIZE)) == 0)
+		&& (pm8001_ha->chip_id == chip_8001))
+		pm8001_ha->evtlog_ib_offset = 0;
+
+	return str - buf;
+}
+
+static DEVICE_ATTR(ib_log, S_IRUGO, pm8001_ctl_ib_queue_log_show, NULL);
+/**
+ * pm8001_ctl_ob_queue_log_show - Out bound Queue log
+ * @cdev:pointer to embedded class device
+ * @buf: the buffer returned
+ * A sysfs 'read-only' shost attribute.
+ */
+
+static ssize_t pm8001_ctl_ob_queue_log_show(struct device *cdev,
+	struct device_attribute *attr, char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
+	struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
+	int offset;
+	char *str = buf;
+	int start = 0;
+#define OB_MEMMAP(c)		\
+		(*(u32 *)((u8 *)pm8001_ha->		\
+		memoryMap.region[OB].virt_ptr +		\
+		pm8001_ha->evtlog_ob_offset + (c)))
+
+	for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
+		if (pm8001_ha->chip_id != chip_8001)
+			str += sprintf(str, "0x%08x\n", OB_MEMMAP(start));
+		else
+			str += sprintf(str, "0x%08x\n", OB_MEMMAP(start));
+		start = start + 4;
+	}
+	pm8001_ha->evtlog_ob_offset += SYSFS_OFFSET;
+	if ((((pm8001_ha->evtlog_ob_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0)
+			&& (pm8001_ha->chip_id != chip_8001))
+		pm8001_ha->evtlog_ob_offset = 0;
+	if ((((pm8001_ha->evtlog_ob_offset) % (PM8001_IB_OB_QUEUE_SIZE)) == 0)
+			&& (pm8001_ha->chip_id == chip_8001))
+		pm8001_ha->evtlog_ob_offset = 0;
+
+	return str - buf;
+}
+static DEVICE_ATTR(ob_log, S_IRUGO, pm8001_ctl_ob_queue_log_show, NULL);
 /**
  * pm8001_ctl_bios_version_show - Bios version Display
  * @cdev:pointer to embedded class device
@@ -377,6 +455,43 @@ static ssize_t pm8001_ctl_iop_log_show(struct device *cdev,
 }
 static DEVICE_ATTR(iop_log, S_IRUGO, pm8001_ctl_iop_log_show, NULL);
 
+/**
+ ** pm8001_ctl_fatal_log_show - fatal error logging
+ ** @cdev:pointer to embedded class device
+ ** @buf: the buffer returned
+ **
+ ** A sysfs 'read-only' shost attribute.
+ **/
+
+static ssize_t pm8001_ctl_fatal_log_show(struct device *cdev,
+	struct device_attribute *attr, char *buf)
+{
+	u32 count;
+
+	count = pm80xx_get_fatal_dump(cdev, attr, buf);
+	return count;
+}
+
+static DEVICE_ATTR(fatal_log, S_IRUGO, pm8001_ctl_fatal_log_show, NULL);
+
+
+/**
+ ** pm8001_ctl_gsm_log_show - gsm dump collection
+ ** @cdev:pointer to embedded class device
+ ** @buf: the buffer returned
+ **A sysfs 'read-only' shost attribute.
+ **/
+static ssize_t pm8001_ctl_gsm_log_show(struct device *cdev,
+	struct device_attribute *attr, char *buf)
+{
+	u32 count;
+
+	count = pm8001_get_gsm_dump(cdev, SYSFS_OFFSET, buf);
+	return count;
+}
+
+static DEVICE_ATTR(gsm_log, S_IRUGO, pm8001_ctl_gsm_log_show, NULL);
+
 #define FLASH_CMD_NONE      0x00
 #define FLASH_CMD_UPDATE    0x01
 #define FLASH_CMD_SET_NVMD    0x02
@@ -636,6 +751,8 @@ struct device_attribute *pm8001_host_attrs[] = {
 	&dev_attr_update_fw,
 	&dev_attr_aap_log,
 	&dev_attr_iop_log,
+	&dev_attr_fatal_log,
+	&dev_attr_gsm_log,
 	&dev_attr_max_out_io,
 	&dev_attr_max_devices,
 	&dev_attr_max_sg_list,
@@ -643,6 +760,8 @@ struct device_attribute *pm8001_host_attrs[] = {
 	&dev_attr_logging_level,
 	&dev_attr_host_sas_address,
 	&dev_attr_bios_version,
+	&dev_attr_ib_log,
+	&dev_attr_ob_log,
 	NULL,
 };
 
diff --git a/drivers/scsi/pm8001/pm8001_ctl.h b/drivers/scsi/pm8001/pm8001_ctl.h
index c6d8fdd3b9b9..d0d43a250b9e 100644
--- a/drivers/scsi/pm8001/pm8001_ctl.h
+++ b/drivers/scsi/pm8001/pm8001_ctl.h
@@ -55,5 +55,9 @@
 #define FAIL_OUT_MEMORY                 0x000c00
 #define FLASH_IN_PROGRESS               0x001000
 
+#define IB_OB_READ_TIMES                256
+#define SYSFS_OFFSET                    1024
+#define PM80XX_IB_OB_QUEUE_SIZE         (32 * 1024)
+#define PM8001_IB_OB_QUEUE_SIZE         (16 * 1024)
 #endif /* PM8001_CTL_H_INCLUDED */
 
diff --git a/drivers/scsi/pm8001/pm8001_defs.h b/drivers/scsi/pm8001/pm8001_defs.h
index 4bb304d379da..74a4bb9af07b 100644
--- a/drivers/scsi/pm8001/pm8001_defs.h
+++ b/drivers/scsi/pm8001/pm8001_defs.h
@@ -102,7 +102,8 @@ enum memory_region_num {
 	NVMD,	    /* NVM device */
 	DEV_MEM,    /* memory for devices */
 	CCB_MEM,    /* memory for command control block */
-	FW_FLASH    /* memory for fw flash update */
+	FW_FLASH,    /* memory for fw flash update */
+	FORENSIC_MEM  /* memory for fw forensic data */
 };
 #define	PM8001_EVENT_LOG_SIZE	 (128 * 1024)
 
diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index 9d1178bcf689..f16ece91b94a 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -5001,6 +5001,89 @@ pm8001_chip_fw_flash_update_req(struct pm8001_hba_info *pm8001_ha,
 	return rc;
 }
 
+ssize_t
+pm8001_get_gsm_dump(struct device *cdev, u32 length, char *buf)
+{
+	u32 value, rem, offset = 0, bar = 0;
+	u32 index, work_offset, dw_length;
+	u32 shift_value, gsm_base, gsm_dump_offset;
+	char *direct_data;
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
+	struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
+
+	direct_data = buf;
+	gsm_dump_offset = pm8001_ha->fatal_forensic_shift_offset;
+
+	/* check max is 1 Mbytes */
+	if ((length > 0x100000) || (gsm_dump_offset & 3) ||
+		((gsm_dump_offset + length) > 0x1000000))
+			return 1;
+
+	if (pm8001_ha->chip_id == chip_8001)
+		bar = 2;
+	else
+		bar = 1;
+
+	work_offset = gsm_dump_offset & 0xFFFF0000;
+	offset = gsm_dump_offset & 0x0000FFFF;
+	gsm_dump_offset = work_offset;
+	/* adjust length to dword boundary */
+	rem = length & 3;
+	dw_length = length >> 2;
+
+	for (index = 0; index < dw_length; index++) {
+		if ((work_offset + offset) & 0xFFFF0000) {
+			if (pm8001_ha->chip_id == chip_8001)
+				shift_value = ((gsm_dump_offset + offset) &
+						SHIFT_REG_64K_MASK);
+			else
+				shift_value = (((gsm_dump_offset + offset) &
+						SHIFT_REG_64K_MASK) >>
+						SHIFT_REG_BIT_SHIFT);
+
+			if (pm8001_ha->chip_id == chip_8001) {
+				gsm_base = GSM_BASE;
+				if (-1 == pm8001_bar4_shift(pm8001_ha,
+						(gsm_base + shift_value)))
+					return 1;
+			} else {
+				gsm_base = 0;
+				if (-1 == pm80xx_bar4_shift(pm8001_ha,
+						(gsm_base + shift_value)))
+					return 1;
+			}
+			gsm_dump_offset = (gsm_dump_offset + offset) &
+						0xFFFF0000;
+			work_offset = 0;
+			offset = offset & 0x0000FFFF;
+		}
+		value = pm8001_cr32(pm8001_ha, bar, (work_offset + offset) &
+						0x0000FFFF);
+		direct_data += sprintf(direct_data, "%08x ", value);
+		offset += 4;
+	}
+	if (rem != 0) {
+		value = pm8001_cr32(pm8001_ha, bar, (work_offset + offset) &
+						0x0000FFFF);
+		/* xfr for non_dw */
+		direct_data += sprintf(direct_data, "%08x ", value);
+	}
+	/* Shift back to BAR4 original address */
+	if (pm8001_ha->chip_id == chip_8001) {
+		if (-1 == pm8001_bar4_shift(pm8001_ha, 0))
+			return 1;
+	} else {
+		if (-1 == pm80xx_bar4_shift(pm8001_ha, 0))
+			return 1;
+	}
+	pm8001_ha->fatal_forensic_shift_offset += 1024;
+
+	if (pm8001_ha->fatal_forensic_shift_offset >= 0x100000)
+		pm8001_ha->fatal_forensic_shift_offset = 0;
+	return direct_data - buf;
+}
+
 int
 pm8001_chip_set_dev_state_req(struct pm8001_hba_info *pm8001_ha,
 	struct pm8001_device *pm8001_dev, u32 state)
diff --git a/drivers/scsi/pm8001/pm8001_hwi.h b/drivers/scsi/pm8001/pm8001_hwi.h
index d7c1e2034226..6d91e2446542 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.h
+++ b/drivers/scsi/pm8001/pm8001_hwi.h
@@ -1027,5 +1027,8 @@ struct set_dev_state_resp {
 #define DEVREG_FAILURE_PORT_NOT_VALID_STATE		0x06
 #define DEVREG_FAILURE_DEVICE_TYPE_NOT_VALID		0x07
 
+#define GSM_BASE					0x4F0000
+#define SHIFT_REG_64K_MASK				0xffff0000
+#define SHIFT_REG_BIT_SHIFT				8
 #endif
 
diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index 92a18c4d2ebb..662bf13c42f0 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -347,6 +347,10 @@ static int pm8001_alloc(struct pm8001_hba_info *pm8001_ha,
 	/* Memory region for fw flash */
 	pm8001_ha->memoryMap.region[FW_FLASH].total_len = 4096;
 
+	pm8001_ha->memoryMap.region[FORENSIC_MEM].num_elements = 1;
+	pm8001_ha->memoryMap.region[FORENSIC_MEM].total_len = 0x10000;
+	pm8001_ha->memoryMap.region[FORENSIC_MEM].element_size = 0x10000;
+	pm8001_ha->memoryMap.region[FORENSIC_MEM].alignment = 0x10000;
 	for (i = 0; i < USI_MAX_MEMCNT; i++) {
 		if (pm8001_mem_alloc(pm8001_ha->pdev,
 			&pm8001_ha->memoryMap.region[i].virt_ptr,
diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h
index cbde11a57a92..6037d477a183 100644
--- a/drivers/scsi/pm8001/pm8001_sas.h
+++ b/drivers/scsi/pm8001/pm8001_sas.h
@@ -132,6 +132,61 @@ struct pm8001_ioctl_payload {
 	u8	*func_specific;
 };
 
+#define MPI_FATAL_ERROR_TABLE_OFFSET_MASK 0xFFFFFF
+#define MPI_FATAL_ERROR_TABLE_SIZE(value) ((0xFF000000 & value) >> SHIFT24)
+#define MPI_FATAL_EDUMP_TABLE_LO_OFFSET            0x00     /* HNFBUFL */
+#define MPI_FATAL_EDUMP_TABLE_HI_OFFSET            0x04     /* HNFBUFH */
+#define MPI_FATAL_EDUMP_TABLE_LENGTH               0x08     /* HNFBLEN */
+#define MPI_FATAL_EDUMP_TABLE_HANDSHAKE            0x0C     /* FDDHSHK */
+#define MPI_FATAL_EDUMP_TABLE_STATUS               0x10     /* FDDTSTAT */
+#define MPI_FATAL_EDUMP_TABLE_ACCUM_LEN            0x14     /* ACCDDLEN */
+#define MPI_FATAL_EDUMP_HANDSHAKE_RDY              0x1
+#define MPI_FATAL_EDUMP_HANDSHAKE_BUSY             0x0
+#define MPI_FATAL_EDUMP_TABLE_STAT_RSVD                 0x0
+#define MPI_FATAL_EDUMP_TABLE_STAT_DMA_FAILED           0x1
+#define MPI_FATAL_EDUMP_TABLE_STAT_NF_SUCCESS_MORE_DATA 0x2
+#define MPI_FATAL_EDUMP_TABLE_STAT_NF_SUCCESS_DONE      0x3
+#define TYPE_GSM_SPACE        1
+#define TYPE_QUEUE            2
+#define TYPE_FATAL            3
+#define TYPE_NON_FATAL        4
+#define TYPE_INBOUND          1
+#define TYPE_OUTBOUND         2
+struct forensic_data {
+	u32  data_type;
+	union {
+		struct {
+			u32  direct_len;
+			u32  direct_offset;
+			void  *direct_data;
+		} gsm_buf;
+		struct {
+			u16  queue_type;
+			u16  queue_index;
+			u32  direct_len;
+			void  *direct_data;
+		} queue_buf;
+		struct {
+			u32  direct_len;
+			u32  direct_offset;
+			u32  read_len;
+			void  *direct_data;
+		} data_buf;
+	};
+};
+
+/* bit31-26 - mask bar */
+#define SCRATCH_PAD0_BAR_MASK                    0xFC000000
+/* bit25-0  - offset mask */
+#define SCRATCH_PAD0_OFFSET_MASK                 0x03FFFFFF
+/* if AAP error state */
+#define SCRATCH_PAD0_AAPERR_MASK                 0xFFFFFFFF
+/* Inbound doorbell bit7 */
+#define SPCv_MSGU_CFG_TABLE_NONFATAL_DUMP	 0x80
+/* Inbound doorbell bit7 SPCV */
+#define SPCV_MSGU_CFG_TABLE_TRANSFER_DEBUG_INFO  0x80
+#define MAIN_MERRDCTO_MERRDCES		         0xA0/* DWORD 0x28) */
+
 struct pm8001_dispatch {
 	char *name;
 	int (*chip_init)(struct pm8001_hba_info *pm8001_ha);
@@ -346,6 +401,7 @@ union main_cfg_table {
 	u32			phy_attr_table_offset;
 	u32			port_recovery_timer;
 	u32			interrupt_reassertion_delay;
+	u32			fatal_n_non_fatal_dump;	        /* 0x28 */
 	} pm80xx_tbl;
 };
 
@@ -420,6 +476,13 @@ struct pm8001_hba_info {
 	struct pm8001_hba_memspace io_mem[6];
 	struct mpi_mem_req	memoryMap;
 	struct encrypt		encrypt_info; /* support encryption */
+	struct forensic_data	forensic_info;
+	u32			fatal_bar_loc;
+	u32			forensic_last_offset;
+	u32			fatal_forensic_shift_offset;
+	u32			forensic_fatal_step;
+	u32			evtlog_ib_offset;
+	u32			evtlog_ob_offset;
 	void __iomem	*msg_unit_tbl_addr;/*Message Unit Table Addr*/
 	void __iomem	*main_cfg_tbl_addr;/*Main Config Table Addr*/
 	void __iomem	*general_stat_tbl_addr;/*General Status Table Addr*/
@@ -428,6 +491,7 @@ struct pm8001_hba_info {
 	void __iomem	*pspa_q_tbl_addr;
 			/*MPI SAS PHY attributes Queue Config Table Addr*/
 	void __iomem	*ivt_tbl_addr; /*MPI IVT Table Addr */
+	void __iomem	*fatal_tbl_addr; /*MPI IVT Table Addr */
 	union main_cfg_table	main_cfg_tbl;
 	union general_status_table	gs_tbl;
 	struct inbound_queue_table	inbnd_q_tbl[PM8001_MAX_SPCV_INB_NUM];
@@ -634,6 +698,10 @@ int pm80xx_set_thermal_config(struct pm8001_hba_info *pm8001_ha);
 int pm8001_bar4_shift(struct pm8001_hba_info *pm8001_ha, u32 shiftValue);
 void pm8001_set_phy_profile(struct pm8001_hba_info *pm8001_ha,
 	u32 length, u8 *buf);
+int pm80xx_bar4_shift(struct pm8001_hba_info *pm8001_ha, u32 shiftValue);
+ssize_t pm80xx_get_fatal_dump(struct device *cdev,
+		struct device_attribute *attr, char *buf);
+ssize_t pm8001_get_gsm_dump(struct device *cdev, u32, char *buf);
 /* ctl shared API */
 extern struct device_attribute *pm8001_host_attrs[];
 
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index 91cf4242a03d..8987b1706216 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -45,6 +45,228 @@
 
 #define SMP_DIRECT 1
 #define SMP_INDIRECT 2
+
+
+int pm80xx_bar4_shift(struct pm8001_hba_info *pm8001_ha, u32 shift_value)
+{
+	u32 reg_val;
+	unsigned long start;
+	pm8001_cw32(pm8001_ha, 0, MEMBASE_II_SHIFT_REGISTER, shift_value);
+	/* confirm the setting is written */
+	start = jiffies + HZ; /* 1 sec */
+	do {
+		reg_val = pm8001_cr32(pm8001_ha, 0, MEMBASE_II_SHIFT_REGISTER);
+	} while ((reg_val != shift_value) && time_before(jiffies, start));
+	if (reg_val != shift_value) {
+		PM8001_FAIL_DBG(pm8001_ha,
+			pm8001_printk("TIMEOUT:MEMBASE_II_SHIFT_REGISTER"
+			" = 0x%x\n", reg_val));
+		return -1;
+	}
+	return 0;
+}
+
+void pm80xx_pci_mem_copy(struct pm8001_hba_info  *pm8001_ha, u32 soffset,
+				const void *destination,
+				u32 dw_count, u32 bus_base_number)
+{
+	u32 index, value, offset;
+	u32 *destination1;
+	destination1 = (u32 *)destination;
+
+	for (index = 0; index < dw_count; index += 4, destination1++) {
+		offset = (soffset + index / 4);
+		if (offset < (64 * 1024)) {
+			value = pm8001_cr32(pm8001_ha, bus_base_number, offset);
+			*destination1 =  cpu_to_le32(value);
+		}
+	}
+	return;
+}
+
+ssize_t pm80xx_get_fatal_dump(struct device *cdev,
+	struct device_attribute *attr, char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(cdev);
+	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
+	struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
+	void __iomem *fatal_table_address = pm8001_ha->fatal_tbl_addr;
+	u32 status = 1;
+	u32 accum_len , reg_val, index, *temp;
+	unsigned long start;
+	u8 *direct_data;
+	char *fatal_error_data = buf;
+
+	pm8001_ha->forensic_info.data_buf.direct_data = buf;
+	if (pm8001_ha->chip_id == chip_8001) {
+		pm8001_ha->forensic_info.data_buf.direct_data +=
+			sprintf(pm8001_ha->forensic_info.data_buf.direct_data,
+			"Not supported for SPC controller");
+		return (char *)pm8001_ha->forensic_info.data_buf.direct_data -
+			(char *)buf;
+	}
+	if (pm8001_ha->forensic_info.data_buf.direct_offset == 0) {
+		PM8001_IO_DBG(pm8001_ha,
+		pm8001_printk("forensic_info TYPE_NON_FATAL..............\n"));
+		direct_data = (u8 *)fatal_error_data;
+		pm8001_ha->forensic_info.data_type = TYPE_NON_FATAL;
+		pm8001_ha->forensic_info.data_buf.direct_len = SYSFS_OFFSET;
+		pm8001_ha->forensic_info.data_buf.direct_offset = 0;
+		pm8001_ha->forensic_info.data_buf.read_len = 0;
+
+		pm8001_ha->forensic_info.data_buf.direct_data = direct_data;
+	}
+
+	if (pm8001_ha->forensic_info.data_buf.direct_offset == 0) {
+		/* start to get data */
+		/* Program the MEMBASE II Shifting Register with 0x00.*/
+		pm8001_cw32(pm8001_ha, 0, MEMBASE_II_SHIFT_REGISTER,
+				pm8001_ha->fatal_forensic_shift_offset);
+		pm8001_ha->forensic_last_offset = 0;
+		pm8001_ha->forensic_fatal_step = 0;
+		pm8001_ha->fatal_bar_loc = 0;
+	}
+	/* Read until accum_len is retrived */
+	accum_len = pm8001_mr32(fatal_table_address,
+				MPI_FATAL_EDUMP_TABLE_ACCUM_LEN);
+	PM8001_IO_DBG(pm8001_ha, pm8001_printk("accum_len 0x%x\n",
+						accum_len));
+	if (accum_len == 0xFFFFFFFF) {
+		PM8001_IO_DBG(pm8001_ha,
+			pm8001_printk("Possible PCI issue 0x%x not expected\n",
+				accum_len));
+		return status;
+	}
+	if (accum_len == 0 || accum_len >= 0x100000) {
+		pm8001_ha->forensic_info.data_buf.direct_data +=
+			sprintf(pm8001_ha->forensic_info.data_buf.direct_data,
+				"%08x ", 0xFFFFFFFF);
+		return (char *)pm8001_ha->forensic_info.data_buf.direct_data -
+			(char *)buf;
+	}
+	temp = (u32 *)pm8001_ha->memoryMap.region[FORENSIC_MEM].virt_ptr;
+	if (pm8001_ha->forensic_fatal_step == 0) {
+moreData:
+		if (pm8001_ha->forensic_info.data_buf.direct_data) {
+			/* Data is in bar, copy to host memory */
+			pm80xx_pci_mem_copy(pm8001_ha, pm8001_ha->fatal_bar_loc,
+			 pm8001_ha->memoryMap.region[FORENSIC_MEM].virt_ptr,
+				pm8001_ha->forensic_info.data_buf.direct_len ,
+					1);
+		}
+		pm8001_ha->fatal_bar_loc +=
+			pm8001_ha->forensic_info.data_buf.direct_len;
+		pm8001_ha->forensic_info.data_buf.direct_offset +=
+			pm8001_ha->forensic_info.data_buf.direct_len;
+		pm8001_ha->forensic_last_offset	+=
+			pm8001_ha->forensic_info.data_buf.direct_len;
+		pm8001_ha->forensic_info.data_buf.read_len =
+			pm8001_ha->forensic_info.data_buf.direct_len;
+
+		if (pm8001_ha->forensic_last_offset  >= accum_len) {
+			pm8001_ha->forensic_info.data_buf.direct_data +=
+			sprintf(pm8001_ha->forensic_info.data_buf.direct_data,
+				"%08x ", 3);
+			for (index = 0; index < (SYSFS_OFFSET / 4); index++) {
+				pm8001_ha->forensic_info.data_buf.direct_data +=
+					sprintf(pm8001_ha->
+					 forensic_info.data_buf.direct_data,
+						"%08x ", *(temp + index));
+			}
+
+			pm8001_ha->fatal_bar_loc = 0;
+			pm8001_ha->forensic_fatal_step = 1;
+			pm8001_ha->fatal_forensic_shift_offset = 0;
+			pm8001_ha->forensic_last_offset	= 0;
+			status = 0;
+			return (char *)pm8001_ha->
+				forensic_info.data_buf.direct_data -
+				(char *)buf;
+		}
+		if (pm8001_ha->fatal_bar_loc < (64 * 1024)) {
+			pm8001_ha->forensic_info.data_buf.direct_data +=
+				sprintf(pm8001_ha->
+					forensic_info.data_buf.direct_data,
+					"%08x ", 2);
+			for (index = 0; index < (SYSFS_OFFSET / 4); index++) {
+				pm8001_ha->forensic_info.data_buf.direct_data +=
+					sprintf(pm8001_ha->
+					forensic_info.data_buf.direct_data,
+					"%08x ", *(temp + index));
+			}
+			status = 0;
+			return (char *)pm8001_ha->
+				forensic_info.data_buf.direct_data -
+				(char *)buf;
+		}
+
+		/* Increment the MEMBASE II Shifting Register value by 0x100.*/
+		pm8001_ha->forensic_info.data_buf.direct_data +=
+			sprintf(pm8001_ha->forensic_info.data_buf.direct_data,
+				"%08x ", 2);
+		for (index = 0; index < 256; index++) {
+			pm8001_ha->forensic_info.data_buf.direct_data +=
+				sprintf(pm8001_ha->
+					forensic_info.data_buf.direct_data,
+						"%08x ", *(temp + index));
+		}
+		pm8001_ha->fatal_forensic_shift_offset += 0x100;
+		pm8001_cw32(pm8001_ha, 0, MEMBASE_II_SHIFT_REGISTER,
+			pm8001_ha->fatal_forensic_shift_offset);
+		pm8001_ha->fatal_bar_loc = 0;
+		status = 0;
+		return (char *)pm8001_ha->forensic_info.data_buf.direct_data -
+			(char *)buf;
+	}
+	if (pm8001_ha->forensic_fatal_step == 1) {
+		pm8001_ha->fatal_forensic_shift_offset = 0;
+		/* Read 64K of the debug data. */
+		pm8001_cw32(pm8001_ha, 0, MEMBASE_II_SHIFT_REGISTER,
+			pm8001_ha->fatal_forensic_shift_offset);
+		pm8001_mw32(fatal_table_address,
+			MPI_FATAL_EDUMP_TABLE_HANDSHAKE,
+				MPI_FATAL_EDUMP_HANDSHAKE_RDY);
+
+		/* Poll FDDHSHK  until clear  */
+		start = jiffies + (2 * HZ); /* 2 sec */
+
+		do {
+			reg_val = pm8001_mr32(fatal_table_address,
+					MPI_FATAL_EDUMP_TABLE_HANDSHAKE);
+		} while ((reg_val) && time_before(jiffies, start));
+
+		if (reg_val != 0) {
+			PM8001_FAIL_DBG(pm8001_ha,
+			pm8001_printk("TIMEOUT:MEMBASE_II_SHIFT_REGISTER"
+			" = 0x%x\n", reg_val));
+			return -1;
+		}
+
+		/* Read the next 64K of the debug data. */
+		pm8001_ha->forensic_fatal_step = 0;
+		if (pm8001_mr32(fatal_table_address,
+			MPI_FATAL_EDUMP_TABLE_STATUS) !=
+				MPI_FATAL_EDUMP_TABLE_STAT_NF_SUCCESS_DONE) {
+			pm8001_mw32(fatal_table_address,
+				MPI_FATAL_EDUMP_TABLE_HANDSHAKE, 0);
+			goto moreData;
+		} else {
+			pm8001_ha->forensic_info.data_buf.direct_data +=
+				sprintf(pm8001_ha->
+					forensic_info.data_buf.direct_data,
+						"%08x ", 4);
+			pm8001_ha->forensic_info.data_buf.read_len = 0xFFFFFFFF;
+			pm8001_ha->forensic_info.data_buf.direct_len =  0;
+			pm8001_ha->forensic_info.data_buf.direct_offset = 0;
+			pm8001_ha->forensic_info.data_buf.read_len = 0;
+			status = 0;
+		}
+	}
+
+	return (char *)pm8001_ha->forensic_info.data_buf.direct_data -
+		(char *)buf;
+}
+
 /**
  * read_main_config_table - read the configure table and save it.
  * @pm8001_ha: our hba card information
@@ -583,6 +805,9 @@ static void init_pci_device_addresses(struct pm8001_hba_info *pm8001_ha)
 	pm8001_ha->pspa_q_tbl_addr =
 		base_addr + (pm8001_cr32(pm8001_ha, pcibar, offset + 0x90) &
 					0xFFFFFF);
+	pm8001_ha->fatal_tbl_addr =
+		base_addr + (pm8001_cr32(pm8001_ha, pcibar, offset + 0xA0) &
+					0xFFFFFF);
 
 	PM8001_INIT_DBG(pm8001_ha,
 			pm8001_printk("GST OFFSET 0x%x\n",
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.h b/drivers/scsi/pm8001/pm80xx_hwi.h
index 872d5cff824f..c86816bea424 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.h
+++ b/drivers/scsi/pm8001/pm80xx_hwi.h
@@ -1525,4 +1525,6 @@ typedef struct SASProtocolTimerConfig SASProtocolTimerConfig_t;
 #define DEVREG_FAILURE_PORT_NOT_VALID_STATE		0x06
 #define DEVREG_FAILURE_DEVICE_TYPE_NOT_VALID		0x07
 
+
+#define MEMBASE_II_SHIFT_REGISTER       0x1010
 #endif
-- 
cgit 


From 7e660100d85af860e7ad763202fff717adcdaacd Mon Sep 17 00:00:00 2001
From: James Bottomley <jbottomley@parallels.com>
Date: Fri, 4 Oct 2013 21:42:24 +0000
Subject: [SCSI] Derive the FLUSH_TIMEOUT from the basic I/O timeout

Rather than having a separate constant for specifying the timeout on FLUSH
operations, use the basic I/O timeout value that is already configurable
on a per target basis to derive the FLUSH timeout. Looking at the current
definitions of these timeout values, the FLUSH operation is supposed to have
a value that is twice the normal timeout value. This patch preserves this
relationship while leveraging the flexibility of specifying the I/O timeout.

Based on a prior patch by KY Srinivasan <kys@microsoft.com>

Reviewed-by: KY Srinivasan <kys@microsoft.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/sd.c | 8 +++++---
 drivers/scsi/sd.h | 6 +++++-
 2 files changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index 3824e754ca1d..fd874b846dc1 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -830,7 +830,7 @@ static int sd_setup_write_same_cmnd(struct scsi_device *sdp, struct request *rq)
 
 static int scsi_setup_flush_cmnd(struct scsi_device *sdp, struct request *rq)
 {
-	rq->timeout = SD_FLUSH_TIMEOUT;
+	rq->timeout *= SD_FLUSH_TIMEOUT_MULTIPLIER;
 	rq->retries = SD_MAX_RETRIES;
 	rq->cmd[0] = SYNCHRONIZE_CACHE;
 	rq->cmd_len = 10;
@@ -1434,6 +1434,8 @@ static int sd_sync_cache(struct scsi_disk *sdkp)
 {
 	int retries, res;
 	struct scsi_device *sdp = sdkp->device;
+	const int timeout = sdp->request_queue->rq_timeout
+		* SD_FLUSH_TIMEOUT_MULTIPLIER;
 	struct scsi_sense_hdr sshdr;
 
 	if (!scsi_device_online(sdp))
@@ -1448,8 +1450,8 @@ static int sd_sync_cache(struct scsi_disk *sdkp)
 		 * flush everything.
 		 */
 		res = scsi_execute_req_flags(sdp, cmd, DMA_NONE, NULL, 0,
-					     &sshdr, SD_FLUSH_TIMEOUT,
-					     SD_MAX_RETRIES, NULL, REQ_PM);
+					     &sshdr, timeout, SD_MAX_RETRIES,
+					     NULL, REQ_PM);
 		if (res == 0)
 			break;
 	}
diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h
index 7a049de22051..26895ff247c5 100644
--- a/drivers/scsi/sd.h
+++ b/drivers/scsi/sd.h
@@ -13,7 +13,11 @@
  */
 #define SD_TIMEOUT		(30 * HZ)
 #define SD_MOD_TIMEOUT		(75 * HZ)
-#define SD_FLUSH_TIMEOUT	(60 * HZ)
+/*
+ * Flush timeout is a multiplier over the standard device timeout which is
+ * user modifiable via sysfs but initially set to SD_TIMEOUT
+ */
+#define SD_FLUSH_TIMEOUT_MULTIPLIER	2
 #define SD_WRITE_SAME_TIMEOUT	(120 * HZ)
 
 /*
-- 
cgit 


From f7bc6434e20589596efbc1fc2bde6d0d78d6168c Mon Sep 17 00:00:00 2001
From: James Smart <james.smart@emulex.com>
Date: Thu, 10 Oct 2013 12:19:53 -0400
Subject: [SCSI] lpfc 8.3.43: Fix crash after xri limit is reached.

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/lpfc/lpfc_scsi.c | 19 ++++++++++++-------
 drivers/scsi/lpfc/lpfc_sli4.h |  1 +
 2 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index c913e8cc3b26..443bbca9694c 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -1012,20 +1012,25 @@ lpfc_new_scsi_buf_s4(struct lpfc_vport *vport, int num_to_alloc)
 			break;
 		}
 
-		/* Allocate iotag for psb->cur_iocbq. */
-		iotag = lpfc_sli_next_iotag(phba, &psb->cur_iocbq);
-		if (iotag == 0) {
+
+		lxri = lpfc_sli4_next_xritag(phba);
+		if (lxri == NO_XRI) {
 			pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
-				psb->data, psb->dma_handle);
+			      psb->data, psb->dma_handle);
 			kfree(psb);
 			break;
 		}
 
-		lxri = lpfc_sli4_next_xritag(phba);
-		if (lxri == NO_XRI) {
+		/* Allocate iotag for psb->cur_iocbq. */
+		iotag = lpfc_sli_next_iotag(phba, &psb->cur_iocbq);
+		if (iotag == 0) {
 			pci_pool_free(phba->lpfc_scsi_dma_buf_pool,
-			      psb->data, psb->dma_handle);
+				psb->data, psb->dma_handle);
 			kfree(psb);
+			lpfc_printf_log(phba, KERN_ERR, LOG_FCP,
+					"3368 Failed to allocated IOTAG for"
+					" XRI:0x%x\n", lxri);
+			lpfc_sli4_free_xri(phba, lxri);
 			break;
 		}
 		psb->cur_iocbq.sli4_lxritag = lxri;
diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h
index 85120b77aa0e..298c8cd1a89d 100644
--- a/drivers/scsi/lpfc/lpfc_sli4.h
+++ b/drivers/scsi/lpfc/lpfc_sli4.h
@@ -673,6 +673,7 @@ void lpfc_sli4_queue_unset(struct lpfc_hba *);
 int lpfc_sli4_post_sgl(struct lpfc_hba *, dma_addr_t, dma_addr_t, uint16_t);
 int lpfc_sli4_repost_scsi_sgl_list(struct lpfc_hba *);
 uint16_t lpfc_sli4_next_xritag(struct lpfc_hba *);
+void lpfc_sli4_free_xri(struct lpfc_hba *, int);
 int lpfc_sli4_post_async_mbox(struct lpfc_hba *);
 int lpfc_sli4_post_scsi_sgl_block(struct lpfc_hba *, struct list_head *, int);
 struct lpfc_cq_event *__lpfc_sli4_cq_event_alloc(struct lpfc_hba *);
-- 
cgit 


From 4902b381c6c99e5edaca1e2549f0a5149d90feec Mon Sep 17 00:00:00 2001
From: James Smart <james.smart@emulex.com>
Date: Thu, 10 Oct 2013 12:20:35 -0400
Subject: [SCSI] lpfc 8.3.43: Fixed spinlock inversion problem.

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/lpfc/lpfc_sli.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 612f48973ff2..5efe12e87a15 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -15098,6 +15098,7 @@ lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
 	uint16_t max_rpi, rpi_limit;
 	uint16_t rpi_remaining, lrpi = 0;
 	struct lpfc_rpi_hdr *rpi_hdr;
+	unsigned long iflag;
 
 	max_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
 	rpi_limit = phba->sli4_hba.next_rpi;
@@ -15106,7 +15107,7 @@ lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
 	 * Fetch the next logical rpi.  Because this index is logical,
 	 * the  driver starts at 0 each time.
 	 */
-	spin_lock_irq(&phba->hbalock);
+	spin_lock_irqsave(&phba->hbalock, iflag);
 	rpi = find_next_zero_bit(phba->sli4_hba.rpi_bmask, rpi_limit, 0);
 	if (rpi >= rpi_limit)
 		rpi = LPFC_RPI_ALLOC_ERROR;
@@ -15122,7 +15123,7 @@ lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
 	 */
 	if ((rpi == LPFC_RPI_ALLOC_ERROR) &&
 	    (phba->sli4_hba.rpi_count >= max_rpi)) {
-		spin_unlock_irq(&phba->hbalock);
+		spin_unlock_irqrestore(&phba->hbalock, iflag);
 		return rpi;
 	}
 
@@ -15131,7 +15132,7 @@ lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
 	 * extents.
 	 */
 	if (!phba->sli4_hba.rpi_hdrs_in_use) {
-		spin_unlock_irq(&phba->hbalock);
+		spin_unlock_irqrestore(&phba->hbalock, iflag);
 		return rpi;
 	}
 
@@ -15142,7 +15143,7 @@ lpfc_sli4_alloc_rpi(struct lpfc_hba *phba)
 	 * how many are supported max by the device.
 	 */
 	rpi_remaining = phba->sli4_hba.next_rpi - phba->sli4_hba.rpi_count;
-	spin_unlock_irq(&phba->hbalock);
+	spin_unlock_irqrestore(&phba->hbalock, iflag);
 	if (rpi_remaining < LPFC_RPI_LOW_WATER_MARK) {
 		rpi_hdr = lpfc_sli4_create_rpi_hdr(phba);
 		if (!rpi_hdr) {
-- 
cgit 


From e8d3c3b14b9aba6adfd5a86d2ea88d4a7b185f24 Mon Sep 17 00:00:00 2001
From: James Smart <james.smart@emulex.com>
Date: Thu, 10 Oct 2013 12:21:30 -0400
Subject: [SCSI] lpfc 8.3.43: Fixed invalid mailbox timeouts

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/lpfc/lpfc_sli.c | 112 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 112 insertions(+)

diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 5efe12e87a15..b48c5504f573 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -71,6 +71,8 @@ static int lpfc_sli4_post_els_sgl_list(struct lpfc_hba *, struct list_head *,
 				       int);
 static void lpfc_sli4_hba_handle_eqe(struct lpfc_hba *, struct lpfc_eqe *,
 			uint32_t);
+static bool lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba);
+static bool lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba);
 
 static IOCB_t *
 lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
@@ -6566,6 +6568,108 @@ lpfc_mbox_timeout(unsigned long ptr)
 	return;
 }
 
+/**
+ * lpfc_sli4_mbox_completions_pending - check to see if any mailbox completions
+ *                                    are pending
+ * @phba: Pointer to HBA context object.
+ *
+ * This function checks if any mailbox completions are present on the mailbox
+ * completion queue.
+ **/
+bool
+lpfc_sli4_mbox_completions_pending(struct lpfc_hba *phba)
+{
+
+	uint32_t idx;
+	struct lpfc_queue *mcq;
+	struct lpfc_mcqe *mcqe;
+	bool pending_completions = false;
+
+	if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
+		return false;
+
+	/* Check for completions on mailbox completion queue */
+
+	mcq = phba->sli4_hba.mbx_cq;
+	idx = mcq->hba_index;
+	while (bf_get_le32(lpfc_cqe_valid, mcq->qe[idx].cqe)) {
+		mcqe = (struct lpfc_mcqe *)mcq->qe[idx].cqe;
+		if (bf_get_le32(lpfc_trailer_completed, mcqe) &&
+		    (!bf_get_le32(lpfc_trailer_async, mcqe))) {
+			pending_completions = true;
+			break;
+		}
+		idx = (idx + 1) % mcq->entry_count;
+		if (mcq->hba_index == idx)
+			break;
+	}
+	return pending_completions;
+
+}
+
+/**
+ * lpfc_sli4_process_missed_mbox_completions - process mbox completions
+ *					      that were missed.
+ * @phba: Pointer to HBA context object.
+ *
+ * For sli4, it is possible to miss an interrupt. As such mbox completions
+ * maybe missed causing erroneous mailbox timeouts to occur. This function
+ * checks to see if mbox completions are on the mailbox completion queue
+ * and will process all the completions associated with the eq for the
+ * mailbox completion queue.
+ **/
+bool
+lpfc_sli4_process_missed_mbox_completions(struct lpfc_hba *phba)
+{
+
+	uint32_t eqidx;
+	struct lpfc_queue *fpeq = NULL;
+	struct lpfc_eqe *eqe;
+	bool mbox_pending;
+
+	if (unlikely(!phba) || (phba->sli_rev != LPFC_SLI_REV4))
+		return false;
+
+	/* Find the eq associated with the mcq */
+
+	if (phba->sli4_hba.hba_eq)
+		for (eqidx = 0; eqidx < phba->cfg_fcp_io_channel; eqidx++)
+			if (phba->sli4_hba.hba_eq[eqidx]->queue_id ==
+			    phba->sli4_hba.mbx_cq->assoc_qid) {
+				fpeq = phba->sli4_hba.hba_eq[eqidx];
+				break;
+			}
+	if (!fpeq)
+		return false;
+
+	/* Turn off interrupts from this EQ */
+
+	lpfc_sli4_eq_clr_intr(fpeq);
+
+	/* Check to see if a mbox completion is pending */
+
+	mbox_pending = lpfc_sli4_mbox_completions_pending(phba);
+
+	/*
+	 * If a mbox completion is pending, process all the events on EQ
+	 * associated with the mbox completion queue (this could include
+	 * mailbox commands, async events, els commands, receive queue data
+	 * and fcp commands)
+	 */
+
+	if (mbox_pending)
+		while ((eqe = lpfc_sli4_eq_get(fpeq))) {
+			lpfc_sli4_hba_handle_eqe(phba, eqe, eqidx);
+			fpeq->EQ_processed++;
+		}
+
+	/* Always clear and re-arm the EQ */
+
+	lpfc_sli4_eq_release(fpeq, LPFC_QUEUE_REARM);
+
+	return mbox_pending;
+
+}
 
 /**
  * lpfc_mbox_timeout_handler - Worker thread function to handle mailbox timeout
@@ -6583,6 +6687,10 @@ lpfc_mbox_timeout_handler(struct lpfc_hba *phba)
 	struct lpfc_sli *psli = &phba->sli;
 	struct lpfc_sli_ring *pring;
 
+	/* If the mailbox completed, process the completion and return */
+	if (lpfc_sli4_process_missed_mbox_completions(phba))
+		return;
+
 	/* Check the pmbox pointer first.  There is a race condition
 	 * between the mbox timeout handler getting executed in the
 	 * worklist and the mailbox actually completing. When this
@@ -7077,6 +7185,10 @@ lpfc_sli4_async_mbox_block(struct lpfc_hba *phba)
 						1000) + jiffies;
 	spin_unlock_irq(&phba->hbalock);
 
+	/* Make sure the mailbox is really active */
+	if (timeout)
+		lpfc_sli4_process_missed_mbox_completions(phba);
+
 	/* Wait for the outstnading mailbox command to complete */
 	while (phba->sli.mbox_active) {
 		/* Check active mailbox complete status every 2ms */
-- 
cgit 


From 0ba4b2199f6e9a8689849c10331e006b99ed83f6 Mon Sep 17 00:00:00 2001
From: James Smart <james.smart@emulex.com>
Date: Thu, 10 Oct 2013 12:22:38 -0400
Subject: [SCSI] lpfc 8.3.43: Fixed invalid fcp_rsp length fir FCP_ICMND

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/lpfc/lpfc_hw4.h | 24 +++++++++++++++++++++---
 drivers/scsi/lpfc/lpfc_sli.c | 19 ++++++++++++++-----
 2 files changed, 35 insertions(+), 8 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h
index 086c3f28caa6..205b4e38030e 100644
--- a/drivers/scsi/lpfc/lpfc_hw4.h
+++ b/drivers/scsi/lpfc/lpfc_hw4.h
@@ -3584,7 +3584,13 @@ struct abort_cmd_wqe {
 
 struct fcp_iwrite64_wqe {
 	struct ulp_bde64 bde;
-	uint32_t payload_offset_len;
+	uint32_t word3;
+#define	cmd_buff_len_SHIFT  16
+#define	cmd_buff_len_MASK  0x00000ffff
+#define	cmd_buff_len_WORD  word3
+#define payload_offset_len_SHIFT 0
+#define payload_offset_len_MASK 0x0000ffff
+#define payload_offset_len_WORD word3
 	uint32_t total_xfer_len;
 	uint32_t initial_xfer_len;
 	struct wqe_common wqe_com;     /* words 6-11 */
@@ -3594,7 +3600,13 @@ struct fcp_iwrite64_wqe {
 
 struct fcp_iread64_wqe {
 	struct ulp_bde64 bde;
-	uint32_t payload_offset_len;   /* word 3 */
+	uint32_t word3;
+#define	cmd_buff_len_SHIFT  16
+#define	cmd_buff_len_MASK  0x00000ffff
+#define	cmd_buff_len_WORD  word3
+#define payload_offset_len_SHIFT 0
+#define payload_offset_len_MASK 0x0000ffff
+#define payload_offset_len_WORD word3
 	uint32_t total_xfer_len;       /* word 4 */
 	uint32_t rsrvd5;               /* word 5 */
 	struct wqe_common wqe_com;     /* words 6-11 */
@@ -3604,7 +3616,13 @@ struct fcp_iread64_wqe {
 
 struct fcp_icmnd64_wqe {
 	struct ulp_bde64 bde;          /* words 0-2 */
-	uint32_t rsrvd3;               /* word 3 */
+	uint32_t word3;
+#define	cmd_buff_len_SHIFT  16
+#define	cmd_buff_len_MASK  0x00000ffff
+#define	cmd_buff_len_WORD  word3
+#define payload_offset_len_SHIFT 0
+#define payload_offset_len_MASK 0x0000ffff
+#define payload_offset_len_WORD word3
 	uint32_t rsrvd4;               /* word 4 */
 	uint32_t rsrvd5;               /* word 5 */
 	struct wqe_common wqe_com;     /* words 6-11 */
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index b48c5504f573..3850949c8a79 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -8232,8 +8232,10 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
 		command_type = FCP_COMMAND_DATA_OUT;
 		/* word3 iocb=iotag wqe=payload_offset_len */
 		/* Add the FCP_CMD and FCP_RSP sizes to get the offset */
-		wqe->fcp_iwrite.payload_offset_len =
-			xmit_len + sizeof(struct fcp_rsp);
+		bf_set(payload_offset_len, &wqe->fcp_iwrite,
+		       xmit_len + sizeof(struct fcp_rsp));
+		bf_set(cmd_buff_len, &wqe->fcp_iwrite,
+		       0);
 		/* word4 iocb=parameter wqe=total_xfer_length memcpy */
 		/* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
 		bf_set(wqe_erp, &wqe->fcp_iwrite.wqe_com,
@@ -8251,8 +8253,10 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
 	case CMD_FCP_IREAD64_CR:
 		/* word3 iocb=iotag wqe=payload_offset_len */
 		/* Add the FCP_CMD and FCP_RSP sizes to get the offset */
-		wqe->fcp_iread.payload_offset_len =
-			xmit_len + sizeof(struct fcp_rsp);
+		bf_set(payload_offset_len, &wqe->fcp_iread,
+		       xmit_len + sizeof(struct fcp_rsp));
+		bf_set(cmd_buff_len, &wqe->fcp_iread,
+		       0);
 		/* word4 iocb=parameter wqe=total_xfer_length memcpy */
 		/* word5 iocb=initial_xfer_len wqe=initial_xfer_len memcpy */
 		bf_set(wqe_erp, &wqe->fcp_iread.wqe_com,
@@ -8268,8 +8272,13 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
 		bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
 		break;
 	case CMD_FCP_ICMND64_CR:
+		/* word3 iocb=iotag wqe=payload_offset_len */
+		/* Add the FCP_CMD and FCP_RSP sizes to get the offset */
+		bf_set(payload_offset_len, &wqe->fcp_icmd,
+		       xmit_len + sizeof(struct fcp_rsp));
+		bf_set(cmd_buff_len, &wqe->fcp_icmd,
+		       0);
 		/* word3 iocb=IO_TAG wqe=reserved */
-		wqe->fcp_icmd.rsrvd3 = 0;
 		bf_set(wqe_pu, &wqe->fcp_icmd.wqe_com, 0);
 		/* Always open the exchange */
 		bf_set(wqe_xc, &wqe->fcp_icmd.wqe_com, 0);
-- 
cgit 


From af22741c77eafd363b670fe840f41f88450d1704 Mon Sep 17 00:00:00 2001
From: James Smart <james.smart@emulex.com>
Date: Thu, 10 Oct 2013 12:23:10 -0400
Subject: [SCSI] lpfc 8.3.43: Fixed invalid Total_Data_Placed value received
 for els and ct command responses

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/lpfc/lpfc_hw4.h |  6 ++++--
 drivers/scsi/lpfc/lpfc_sli.c | 38 ++++++++++++++++++++++++++++++++++++--
 2 files changed, 40 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h
index 205b4e38030e..5464b116d328 100644
--- a/drivers/scsi/lpfc/lpfc_hw4.h
+++ b/drivers/scsi/lpfc/lpfc_hw4.h
@@ -3439,7 +3439,8 @@ struct els_request64_wqe {
 #define els_req64_hopcnt_SHIFT      24
 #define els_req64_hopcnt_MASK       0x000000ff
 #define els_req64_hopcnt_WORD       word13
-	uint32_t reserved[2];
+	uint32_t word14;
+	uint32_t max_response_payload_len;
 };
 
 struct xmit_els_rsp64_wqe {
@@ -3554,7 +3555,8 @@ struct gen_req64_wqe {
 	uint32_t relative_offset;
 	struct wqe_rctl_dfctl wge_ctl; /* word 5 */
 	struct wqe_common wqe_com;     /* words 6-11 */
-	uint32_t rsvd_12_15[4];
+	uint32_t rsvd_12_14[3];
+	uint32_t max_response_payload_len;
 };
 
 struct create_xri_wqe {
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 3850949c8a79..a262d22bca44 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -8188,6 +8188,7 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
 		bf_set(wqe_qosd, &wqe->els_req.wqe_com, 1);
 		bf_set(wqe_lenloc, &wqe->els_req.wqe_com, LPFC_WQE_LENLOC_NONE);
 		bf_set(wqe_ebde_cnt, &wqe->els_req.wqe_com, 0);
+		wqe->els_req.max_response_payload_len = total_len - xmit_len;
 		break;
 	case CMD_XMIT_SEQUENCE64_CX:
 		bf_set(wqe_ctxt_tag, &wqe->xmit_sequence.wqe_com,
@@ -8324,6 +8325,7 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
 		bf_set(wqe_qosd, &wqe->gen_req.wqe_com, 1);
 		bf_set(wqe_lenloc, &wqe->gen_req.wqe_com, LPFC_WQE_LENLOC_NONE);
 		bf_set(wqe_ebde_cnt, &wqe->gen_req.wqe_com, 0);
+		wqe->gen_req.max_response_payload_len = total_len - xmit_len;
 		command_type = OTHER_COMMAND;
 		break;
 	case CMD_XMIT_ELS_RSP64_CX:
@@ -11195,8 +11197,11 @@ lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
 			      struct lpfc_iocbq *pIocbOut,
 			      struct lpfc_wcqe_complete *wcqe)
 {
+	int numBdes, i;
 	unsigned long iflags;
-	uint32_t status;
+	uint32_t status, max_response;
+	struct lpfc_dmabuf *dmabuf;
+	struct ulp_bde64 *bpl, bde;
 	size_t offset = offsetof(struct lpfc_iocbq, iocb);
 
 	memcpy((char *)pIocbIn + offset, (char *)pIocbOut + offset,
@@ -11213,7 +11218,36 @@ lpfc_sli4_iocb_param_transfer(struct lpfc_hba *phba,
 			pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
 	else {
 		pIocbIn->iocb.un.ulpWord[4] = wcqe->parameter;
-		pIocbIn->iocb.un.genreq64.bdl.bdeSize = wcqe->total_data_placed;
+		switch (pIocbOut->iocb.ulpCommand) {
+		case CMD_ELS_REQUEST64_CR:
+			dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
+			bpl  = (struct ulp_bde64 *)dmabuf->virt;
+			bde.tus.w = le32_to_cpu(bpl[1].tus.w);
+			max_response = bde.tus.f.bdeSize;
+			break;
+		case CMD_GEN_REQUEST64_CR:
+			max_response = 0;
+			if (!pIocbOut->context3)
+				break;
+			numBdes = pIocbOut->iocb.un.genreq64.bdl.bdeSize/
+					sizeof(struct ulp_bde64);
+			dmabuf = (struct lpfc_dmabuf *)pIocbOut->context3;
+			bpl = (struct ulp_bde64 *)dmabuf->virt;
+			for (i = 0; i < numBdes; i++) {
+				bde.tus.w = le32_to_cpu(bpl[i].tus.w);
+				if (bde.tus.f.bdeFlags != BUFF_TYPE_BDE_64)
+					max_response += bde.tus.f.bdeSize;
+			}
+			break;
+		default:
+			max_response = wcqe->total_data_placed;
+			break;
+		}
+		if (max_response < wcqe->total_data_placed)
+			pIocbIn->iocb.un.genreq64.bdl.bdeSize = max_response;
+		else
+			pIocbIn->iocb.un.genreq64.bdl.bdeSize =
+				wcqe->total_data_placed;
 	}
 
 	/* Convert BG errors for completion status */
-- 
cgit 


From 725dd399ae69d0703c0417f9ce0ce065d2a914d1 Mon Sep 17 00:00:00 2001
From: James Smart <james.smart@emulex.com>
Date: Thu, 10 Oct 2013 12:23:30 -0400
Subject: [SCSI] lpfc 8.3.43: Fixed spinlock hang.

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/lpfc/lpfc_hbadisc.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index 7801601aa5d9..883ea2d9f237 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -4171,8 +4171,6 @@ lpfc_initialize_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	NLP_INT_NODE_ACT(ndlp);
 	atomic_set(&ndlp->cmd_pending, 0);
 	ndlp->cmd_qdepth = vport->cfg_tgt_queue_depth;
-	if (vport->phba->sli_rev == LPFC_SLI_REV4)
-		ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba);
 }
 
 struct lpfc_nodelist *
@@ -4217,6 +4215,9 @@ lpfc_enable_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	lpfc_initialize_node(vport, ndlp, did);
 
 	spin_unlock_irqrestore(&phba->ndlp_lock, flags);
+	if (vport->phba->sli_rev == LPFC_SLI_REV4)
+		ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba);
+
 
 	if (state != NLP_STE_UNUSED_NODE)
 		lpfc_nlp_set_state(vport, ndlp, state);
@@ -5617,6 +5618,9 @@ lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 
 	lpfc_initialize_node(vport, ndlp, did);
 	INIT_LIST_HEAD(&ndlp->nlp_listp);
+	if (vport->phba->sli_rev == LPFC_SLI_REV4)
+		ndlp->nlp_rpi = lpfc_sli4_alloc_rpi(vport->phba);
+
 
 	lpfc_debugfs_disc_trc(vport, LPFC_DISC_TRC_NODE,
 		"node init:       did:x%x",
-- 
cgit 


From 53151bbb83f11b358ac94eddd81347c581dc51ea Mon Sep 17 00:00:00 2001
From: James Smart <james.smart@emulex.com>
Date: Thu, 10 Oct 2013 12:24:07 -0400
Subject: [SCSI] lpfc 8.3.43: Fixed not processing task management IOCB
 response status

This patch implements the changes requested by Jeremy Linton:
http://marc.info/?l=linux-scsi&m=136242124409687&w=2

The patch revises the command issuing behavior, detecting cases where the
Task Mgmt command may have completed but with a non-successful status, which it
previously treated as a successful TMF. The patch also corrects a flushing of
I/O that was done which should only be done on successful TMF completion.

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/lpfc/lpfc_bsg.c  |   7 +--
 drivers/scsi/lpfc/lpfc_scsi.c | 112 +++++++++++++++++++++++++++++++++++-------
 drivers/scsi/lpfc/lpfc_scsi.h |   1 +
 drivers/scsi/lpfc/lpfc_sli.c  |   5 ++
 4 files changed, 104 insertions(+), 21 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_bsg.c b/drivers/scsi/lpfc/lpfc_bsg.c
index b92aec989d60..82134d20e2d8 100644
--- a/drivers/scsi/lpfc/lpfc_bsg.c
+++ b/drivers/scsi/lpfc/lpfc_bsg.c
@@ -2629,7 +2629,7 @@ static int lpfcdiag_loop_get_xri(struct lpfc_hba *phba, uint16_t rpi,
 				rspiocbq,
 				(phba->fc_ratov * 2)
 				+ LPFC_DRVR_TIMEOUT);
-	if (iocb_stat) {
+	if ((iocb_stat != IOCB_SUCCESS) || (rsp->ulpStatus != IOSTAT_SUCCESS)) {
 		ret_val = -EIO;
 		goto err_get_xri_exit;
 	}
@@ -3204,8 +3204,9 @@ lpfc_bsg_diag_loopback_run(struct fc_bsg_job *job)
 					     rspiocbq, (phba->fc_ratov * 2) +
 					     LPFC_DRVR_TIMEOUT);
 
-	if ((iocb_stat != IOCB_SUCCESS) || ((phba->sli_rev < LPFC_SLI_REV4) &&
-					   (rsp->ulpStatus != IOCB_SUCCESS))) {
+	if ((iocb_stat != IOCB_SUCCESS) ||
+	    ((phba->sli_rev < LPFC_SLI_REV4) &&
+	     (rsp->ulpStatus != IOSTAT_SUCCESS))) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
 				"3126 Failed loopback test issue iocb: "
 				"iocb_stat:x%x\n", iocb_stat);
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 443bbca9694c..b2ede05a5f0a 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -4490,9 +4490,7 @@ lpfc_scsi_prep_task_mgmt_cmd(struct lpfc_vport *vport,
 		piocb->ulpContext =
 		  vport->phba->sli4_hba.rpi_ids[ndlp->nlp_rpi];
 	}
-	if (ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) {
-		piocb->ulpFCP2Rcvy = 1;
-	}
+	piocb->ulpFCP2Rcvy = (ndlp->nlp_fcp_info & NLP_FCP_2_DEVICE) ? 1 : 0;
 	piocb->ulpClass = (ndlp->nlp_fcp_info & 0x0f);
 
 	/* ulpTimeout is only one byte */
@@ -4986,6 +4984,73 @@ lpfc_taskmgmt_name(uint8_t task_mgmt_cmd)
 	}
 }
 
+
+/**
+ * lpfc_check_fcp_rsp - check the returned fcp_rsp to see if task failed
+ * @vport: The virtual port for which this call is being executed.
+ * @lpfc_cmd: Pointer to lpfc_scsi_buf data structure.
+ *
+ * This routine checks the FCP RSP INFO to see if the tsk mgmt command succeded
+ *
+ * Return code :
+ *   0x2003 - Error
+ *   0x2002 - Success
+ **/
+static int
+lpfc_check_fcp_rsp(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd)
+{
+	struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp;
+	uint32_t rsp_info;
+	uint32_t rsp_len;
+	uint8_t  rsp_info_code;
+	int ret = FAILED;
+
+
+	if (fcprsp == NULL)
+		lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
+				 "0703 fcp_rsp is missing\n");
+	else {
+		rsp_info = fcprsp->rspStatus2;
+		rsp_len = be32_to_cpu(fcprsp->rspRspLen);
+		rsp_info_code = fcprsp->rspInfo3;
+
+
+		lpfc_printf_vlog(vport, KERN_INFO,
+				 LOG_FCP,
+				 "0706 fcp_rsp valid 0x%x,"
+				 " rsp len=%d code 0x%x\n",
+				 rsp_info,
+				 rsp_len, rsp_info_code);
+
+		if ((fcprsp->rspStatus2&RSP_LEN_VALID) && (rsp_len == 8)) {
+			switch (rsp_info_code) {
+			case RSP_NO_FAILURE:
+				lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
+						 "0715 Task Mgmt No Failure\n");
+				ret = SUCCESS;
+				break;
+			case RSP_TM_NOT_SUPPORTED: /* TM rejected */
+				lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
+						 "0716 Task Mgmt Target "
+						"reject\n");
+				break;
+			case RSP_TM_NOT_COMPLETED: /* TM failed */
+				lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
+						 "0717 Task Mgmt Target "
+						"failed TM\n");
+				break;
+			case RSP_TM_INVALID_LU: /* TM to invalid LU! */
+				lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
+						 "0718 Task Mgmt to invalid "
+						"LUN\n");
+				break;
+			}
+		}
+	}
+	return ret;
+}
+
+
 /**
  * lpfc_send_taskmgmt - Generic SCSI Task Mgmt Handler
  * @vport: The virtual port for which this call is being executed.
@@ -5047,12 +5112,8 @@ lpfc_send_taskmgmt(struct lpfc_vport *vport, struct lpfc_rport_data *rdata,
 
 	status = lpfc_sli_issue_iocb_wait(phba, LPFC_FCP_RING,
 					  iocbq, iocbqrsp, lpfc_cmd->timeout);
-	if (status != IOCB_SUCCESS) {
-		if (status == IOCB_TIMEDOUT) {
-			ret = TIMEOUT_ERROR;
-		} else
-			ret = FAILED;
-		lpfc_cmd->status = IOSTAT_DRIVER_REJECT;
+	if ((status != IOCB_SUCCESS) ||
+	    (iocbqrsp->iocb.ulpStatus != IOSTAT_SUCCESS)) {
 		lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP,
 			 "0727 TMF %s to TGT %d LUN %d failed (%d, %d) "
 			 "iocb_flag x%x\n",
@@ -5060,9 +5121,21 @@ lpfc_send_taskmgmt(struct lpfc_vport *vport, struct lpfc_rport_data *rdata,
 			 tgt_id, lun_id, iocbqrsp->iocb.ulpStatus,
 			 iocbqrsp->iocb.un.ulpWord[4],
 			 iocbq->iocb_flag);
-	} else if (status == IOCB_BUSY)
-		ret = FAILED;
-	else
+		/* if ulpStatus != IOCB_SUCCESS, then status == IOCB_SUCCESS */
+		if (status == IOCB_SUCCESS) {
+			if (iocbqrsp->iocb.ulpStatus == IOSTAT_FCP_RSP_ERROR)
+				/* Something in the FCP_RSP was invalid.
+				 * Check conditions */
+				ret = lpfc_check_fcp_rsp(vport, lpfc_cmd);
+			else
+				ret = FAILED;
+		} else if (status == IOCB_TIMEDOUT) {
+			ret = TIMEOUT_ERROR;
+		} else {
+			ret = FAILED;
+		}
+		lpfc_cmd->status = IOSTAT_DRIVER_REJECT;
+	} else
 		ret = SUCCESS;
 
 	lpfc_sli_release_iocbq(phba, iocbqrsp);
@@ -5186,7 +5259,7 @@ lpfc_device_reset_handler(struct scsi_cmnd *cmnd)
 	unsigned tgt_id = cmnd->device->id;
 	unsigned int lun_id = cmnd->device->lun;
 	struct lpfc_scsi_event_header scsi_event;
-	int status, ret = SUCCESS;
+	int status;
 
 	if (!rdata) {
 		lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP,
@@ -5227,9 +5300,11 @@ lpfc_device_reset_handler(struct scsi_cmnd *cmnd)
 	 * So, continue on.
 	 * We will report success if all the i/o aborts successfully.
 	 */
-	ret = lpfc_reset_flush_io_context(vport, tgt_id, lun_id,
+	if (status == SUCCESS)
+		status = lpfc_reset_flush_io_context(vport, tgt_id, lun_id,
 						LPFC_CTX_LUN);
-	return ret;
+
+	return status;
 }
 
 /**
@@ -5253,7 +5328,7 @@ lpfc_target_reset_handler(struct scsi_cmnd *cmnd)
 	unsigned tgt_id = cmnd->device->id;
 	unsigned int lun_id = cmnd->device->lun;
 	struct lpfc_scsi_event_header scsi_event;
-	int status, ret = SUCCESS;
+	int status;
 
 	if (!rdata) {
 		lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP,
@@ -5294,9 +5369,10 @@ lpfc_target_reset_handler(struct scsi_cmnd *cmnd)
 	 * So, continue on.
 	 * We will report success if all the i/o aborts successfully.
 	 */
-	ret = lpfc_reset_flush_io_context(vport, tgt_id, lun_id,
+	if (status == SUCCESS)
+		status = lpfc_reset_flush_io_context(vport, tgt_id, lun_id,
 					  LPFC_CTX_TGT);
-	return ret;
+	return status;
 }
 
 /**
diff --git a/drivers/scsi/lpfc/lpfc_scsi.h b/drivers/scsi/lpfc/lpfc_scsi.h
index b1d9f7fcb911..852ff7def493 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.h
+++ b/drivers/scsi/lpfc/lpfc_scsi.h
@@ -73,6 +73,7 @@ struct fcp_rsp {
 #define RSP_RO_MISMATCH_ERR  0x03
 #define RSP_TM_NOT_SUPPORTED 0x04	/* Task mgmt function not supported */
 #define RSP_TM_NOT_COMPLETED 0x05	/* Task mgmt function not performed */
+#define RSP_TM_INVALID_LU    0x09	/* Task mgmt function to invalid LU */
 
 	uint32_t rspInfoRsvd;	/* FCP_RSP_INFO bytes 4-7 (reserved) */
 
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index a262d22bca44..8f580fda443f 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -10196,6 +10196,11 @@ lpfc_sli_issue_iocb_wait(struct lpfc_hba *phba,
 		if (iocb_completed) {
 			lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
 					"0331 IOCB wake signaled\n");
+			/* Note: we are not indicating if the IOCB has a success
+			 * status or not - that's for the caller to check.
+			 * IOCB_SUCCESS means just that the command was sent and
+			 * completed. Not that it completed successfully.
+			 * */
 		} else if (timeleft == 0) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
 					"0338 IOCB wait timeout error - no "
-- 
cgit 


From a1f7177a1bc68cf43ed7f5a50c9a7220b0e1662f Mon Sep 17 00:00:00 2001
From: James Smart <james.smart@emulex.com>
Date: Thu, 10 Oct 2013 12:24:21 -0400
Subject: [SCSI] lpfc 8.3.43: Update lpfc version to driver version 8.3.43

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/lpfc/lpfc_version.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h
index f58f18342bc3..e3094c4e143b 100644
--- a/drivers/scsi/lpfc/lpfc_version.h
+++ b/drivers/scsi/lpfc/lpfc_version.h
@@ -18,7 +18,7 @@
  * included with this package.                                     *
  *******************************************************************/
 
-#define LPFC_DRIVER_VERSION "8.3.42"
+#define LPFC_DRIVER_VERSION "8.3.43"
 #define LPFC_DRIVER_NAME		"lpfc"
 
 /* Used for SLI 2/3 */
-- 
cgit 


From 9588d24e36003b53f76e43b4fadfc5b35207be04 Mon Sep 17 00:00:00 2001
From: Bradley Grove <bgrove@attotech.com>
Date: Tue, 1 Oct 2013 14:26:01 -0400
Subject: [SCSI] esas2r: Directly call kernel functions for atomic bit
 operations

Previously the code embedded the kernel's test_bit/clear_bit
functions in wrappers that accepted u32 parameters.  The
wrapper cast these parameters to longs before passing them
to the kernel's bit functions.   This did not work properly
on platforms with 64-bit longs.

Signed-off-by: Bradley Grove <bgrove@attotech.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/esas2r/esas2r.h        | 125 +++++++++++++++----------------
 drivers/scsi/esas2r/esas2r_disc.c   |  55 +++++++-------
 drivers/scsi/esas2r/esas2r_flash.c  |  34 +++++----
 drivers/scsi/esas2r/esas2r_init.c   | 143 +++++++++++++++++-------------------
 drivers/scsi/esas2r/esas2r_int.c    |  97 ++++++++++++------------
 drivers/scsi/esas2r/esas2r_io.c     |  73 +++++++++---------
 drivers/scsi/esas2r/esas2r_ioctl.c  |  28 +++----
 drivers/scsi/esas2r/esas2r_main.c   |  34 ++++-----
 drivers/scsi/esas2r/esas2r_targdb.c |   2 +-
 drivers/scsi/esas2r/esas2r_vda.c    |   6 +-
 10 files changed, 291 insertions(+), 306 deletions(-)

diff --git a/drivers/scsi/esas2r/esas2r.h b/drivers/scsi/esas2r/esas2r.h
index 0838e265e0b9..d128c96a501d 100644
--- a/drivers/scsi/esas2r/esas2r.h
+++ b/drivers/scsi/esas2r/esas2r.h
@@ -799,47 +799,47 @@ struct esas2r_adapter {
 	struct esas2r_target *targetdb_end;
 	unsigned char *regs;
 	unsigned char *data_window;
-	u32 volatile flags;
-	#define AF_PORT_CHANGE      (u32)(0x00000001)
-	#define AF_CHPRST_NEEDED    (u32)(0x00000004)
-	#define AF_CHPRST_PENDING   (u32)(0x00000008)
-	#define AF_CHPRST_DETECTED  (u32)(0x00000010)
-	#define AF_BUSRST_NEEDED    (u32)(0x00000020)
-	#define AF_BUSRST_PENDING   (u32)(0x00000040)
-	#define AF_BUSRST_DETECTED  (u32)(0x00000080)
-	#define AF_DISABLED         (u32)(0x00000100)
-	#define AF_FLASH_LOCK       (u32)(0x00000200)
-	#define AF_OS_RESET         (u32)(0x00002000)
-	#define AF_FLASHING         (u32)(0x00004000)
-	#define AF_POWER_MGT        (u32)(0x00008000)
-	#define AF_NVR_VALID        (u32)(0x00010000)
-	#define AF_DEGRADED_MODE    (u32)(0x00020000)
-	#define AF_DISC_PENDING     (u32)(0x00040000)
-	#define AF_TASKLET_SCHEDULED    (u32)(0x00080000)
-	#define AF_HEARTBEAT        (u32)(0x00200000)
-	#define AF_HEARTBEAT_ENB    (u32)(0x00400000)
-	#define AF_NOT_PRESENT      (u32)(0x00800000)
-	#define AF_CHPRST_STARTED   (u32)(0x01000000)
-	#define AF_FIRST_INIT       (u32)(0x02000000)
-	#define AF_POWER_DOWN       (u32)(0x04000000)
-	#define AF_DISC_IN_PROG     (u32)(0x08000000)
-	#define AF_COMM_LIST_TOGGLE (u32)(0x10000000)
-	#define AF_LEGACY_SGE_MODE  (u32)(0x20000000)
-	#define AF_DISC_POLLED      (u32)(0x40000000)
-	u32 volatile flags2;
-	#define AF2_SERIAL_FLASH    (u32)(0x00000001)
-	#define AF2_DEV_SCAN        (u32)(0x00000002)
-	#define AF2_DEV_CNT_OK      (u32)(0x00000004)
-	#define AF2_COREDUMP_AVAIL  (u32)(0x00000008)
-	#define AF2_COREDUMP_SAVED  (u32)(0x00000010)
-	#define AF2_VDA_POWER_DOWN  (u32)(0x00000100)
-	#define AF2_THUNDERLINK     (u32)(0x00000200)
-	#define AF2_THUNDERBOLT     (u32)(0x00000400)
-	#define AF2_INIT_DONE       (u32)(0x00000800)
-	#define AF2_INT_PENDING     (u32)(0x00001000)
-	#define AF2_TIMER_TICK      (u32)(0x00002000)
-	#define AF2_IRQ_CLAIMED     (u32)(0x00004000)
-	#define AF2_MSI_ENABLED     (u32)(0x00008000)
+	long flags;
+	#define AF_PORT_CHANGE      0
+	#define AF_CHPRST_NEEDED    1
+	#define AF_CHPRST_PENDING   2
+	#define AF_CHPRST_DETECTED  3
+	#define AF_BUSRST_NEEDED    4
+	#define AF_BUSRST_PENDING   5
+	#define AF_BUSRST_DETECTED  6
+	#define AF_DISABLED         7
+	#define AF_FLASH_LOCK       8
+	#define AF_OS_RESET         9
+	#define AF_FLASHING         10
+	#define AF_POWER_MGT        11
+	#define AF_NVR_VALID        12
+	#define AF_DEGRADED_MODE    13
+	#define AF_DISC_PENDING     14
+	#define AF_TASKLET_SCHEDULED    15
+	#define AF_HEARTBEAT        16
+	#define AF_HEARTBEAT_ENB    17
+	#define AF_NOT_PRESENT      18
+	#define AF_CHPRST_STARTED   19
+	#define AF_FIRST_INIT       20
+	#define AF_POWER_DOWN       21
+	#define AF_DISC_IN_PROG     22
+	#define AF_COMM_LIST_TOGGLE 23
+	#define AF_LEGACY_SGE_MODE  24
+	#define AF_DISC_POLLED      25
+	long flags2;
+	#define AF2_SERIAL_FLASH    0
+	#define AF2_DEV_SCAN        1
+	#define AF2_DEV_CNT_OK      2
+	#define AF2_COREDUMP_AVAIL  3
+	#define AF2_COREDUMP_SAVED  4
+	#define AF2_VDA_POWER_DOWN  5
+	#define AF2_THUNDERLINK     6
+	#define AF2_THUNDERBOLT     7
+	#define AF2_INIT_DONE       8
+	#define AF2_INT_PENDING     9
+	#define AF2_TIMER_TICK      10
+	#define AF2_IRQ_CLAIMED     11
+	#define AF2_MSI_ENABLED     12
 	atomic_t disable_cnt;
 	atomic_t dis_ints_cnt;
 	u32 int_stat;
@@ -1150,16 +1150,6 @@ void esas2r_queue_fw_event(struct esas2r_adapter *a,
 			   int data_sz);
 
 /* Inline functions */
-static inline u32 esas2r_lock_set_flags(volatile u32 *flags, u32 bits)
-{
-	return test_and_set_bit(ilog2(bits), (volatile unsigned long *)flags);
-}
-
-static inline u32 esas2r_lock_clear_flags(volatile u32 *flags, u32 bits)
-{
-	return test_and_clear_bit(ilog2(bits),
-				  (volatile unsigned long *)flags);
-}
 
 /* Allocate a chip scatter/gather list entry */
 static inline struct esas2r_mem_desc *esas2r_alloc_sgl(struct esas2r_adapter *a)
@@ -1303,10 +1293,13 @@ static inline void esas2r_rq_destroy_request(struct esas2r_request *rq,
 
 static inline bool esas2r_is_tasklet_pending(struct esas2r_adapter *a)
 {
-	return (a->flags & (AF_BUSRST_NEEDED | AF_BUSRST_DETECTED
-			    | AF_CHPRST_NEEDED | AF_CHPRST_DETECTED
-			    | AF_PORT_CHANGE))
-	       ? true : false;
+
+	return test_bit(AF_BUSRST_NEEDED, &a->flags) ||
+	       test_bit(AF_BUSRST_DETECTED, &a->flags) ||
+	       test_bit(AF_CHPRST_NEEDED, &a->flags) ||
+	       test_bit(AF_CHPRST_DETECTED, &a->flags) ||
+	       test_bit(AF_PORT_CHANGE, &a->flags);
+
 }
 
 /*
@@ -1345,24 +1338,24 @@ static inline void esas2r_enable_chip_interrupts(struct esas2r_adapter *a)
 static inline void esas2r_schedule_tasklet(struct esas2r_adapter *a)
 {
 	/* make sure we don't schedule twice */
-	if (!(esas2r_lock_set_flags(&a->flags, AF_TASKLET_SCHEDULED) &
-	      ilog2(AF_TASKLET_SCHEDULED)))
+	if (!test_and_set_bit(AF_TASKLET_SCHEDULED, &a->flags))
 		tasklet_hi_schedule(&a->tasklet);
 }
 
 static inline void esas2r_enable_heartbeat(struct esas2r_adapter *a)
 {
-	if (!(a->flags & (AF_DEGRADED_MODE | AF_CHPRST_PENDING))
-	    && (a->nvram->options2 & SASNVR2_HEARTBEAT))
-		esas2r_lock_set_flags(&a->flags, AF_HEARTBEAT_ENB);
+	if (!test_bit(AF_DEGRADED_MODE, &a->flags) &&
+	    !test_bit(AF_CHPRST_PENDING, &a->flags) &&
+	    (a->nvram->options2 & SASNVR2_HEARTBEAT))
+		set_bit(AF_HEARTBEAT_ENB, &a->flags);
 	else
-		esas2r_lock_clear_flags(&a->flags, AF_HEARTBEAT_ENB);
+		clear_bit(AF_HEARTBEAT_ENB, &a->flags);
 }
 
 static inline void esas2r_disable_heartbeat(struct esas2r_adapter *a)
 {
-	esas2r_lock_clear_flags(&a->flags, AF_HEARTBEAT_ENB);
-	esas2r_lock_clear_flags(&a->flags, AF_HEARTBEAT);
+	clear_bit(AF_HEARTBEAT_ENB, &a->flags);
+	clear_bit(AF_HEARTBEAT, &a->flags);
 }
 
 /* Set the initial state for resetting the adapter on the next pass through
@@ -1372,9 +1365,9 @@ static inline void esas2r_local_reset_adapter(struct esas2r_adapter *a)
 {
 	esas2r_disable_heartbeat(a);
 
-	esas2r_lock_set_flags(&a->flags, AF_CHPRST_NEEDED);
-	esas2r_lock_set_flags(&a->flags, AF_CHPRST_PENDING);
-	esas2r_lock_set_flags(&a->flags, AF_DISC_PENDING);
+	set_bit(AF_CHPRST_NEEDED, &a->flags);
+	set_bit(AF_CHPRST_PENDING, &a->flags);
+	set_bit(AF_DISC_PENDING, &a->flags);
 }
 
 /* See if an interrupt is pending on the adapter. */
diff --git a/drivers/scsi/esas2r/esas2r_disc.c b/drivers/scsi/esas2r/esas2r_disc.c
index dec6c334ce3e..1c079f4300a5 100644
--- a/drivers/scsi/esas2r/esas2r_disc.c
+++ b/drivers/scsi/esas2r/esas2r_disc.c
@@ -86,9 +86,9 @@ void esas2r_disc_initialize(struct esas2r_adapter *a)
 
 	esas2r_trace_enter();
 
-	esas2r_lock_clear_flags(&a->flags, AF_DISC_IN_PROG);
-	esas2r_lock_clear_flags(&a->flags2, AF2_DEV_SCAN);
-	esas2r_lock_clear_flags(&a->flags2, AF2_DEV_CNT_OK);
+	clear_bit(AF_DISC_IN_PROG, &a->flags);
+	clear_bit(AF2_DEV_SCAN, &a->flags2);
+	clear_bit(AF2_DEV_CNT_OK, &a->flags2);
 
 	a->disc_start_time = jiffies_to_msecs(jiffies);
 	a->disc_wait_time = nvr->dev_wait_time * 1000;
@@ -107,7 +107,8 @@ void esas2r_disc_initialize(struct esas2r_adapter *a)
 
 	a->general_req.interrupt_cx = NULL;
 
-	if (a->flags & (AF_CHPRST_DETECTED | AF_POWER_MGT)) {
+	if (test_bit(AF_CHPRST_DETECTED, &a->flags) ||
+	    test_bit(AF_POWER_MGT, &a->flags)) {
 		if (a->prev_dev_cnt == 0) {
 			/* Don't bother waiting if there is nothing to wait
 			 * for.
@@ -212,9 +213,7 @@ void esas2r_disc_check_complete(struct esas2r_adapter *a)
 			|| a->disc_wait_cnt == 0)) {
 			/* After three seconds of waiting, schedule a scan. */
 			if (time >= 3000
-			    && !(esas2r_lock_set_flags(&a->flags2,
-						       AF2_DEV_SCAN) &
-				 ilog2(AF2_DEV_SCAN))) {
+			    && !test_and_set_bit(AF2_DEV_SCAN, &a->flags2)) {
 				spin_lock_irqsave(&a->mem_lock, flags);
 				esas2r_disc_queue_event(a, DCDE_DEV_SCAN);
 				spin_unlock_irqrestore(&a->mem_lock, flags);
@@ -228,18 +227,14 @@ void esas2r_disc_check_complete(struct esas2r_adapter *a)
 		 * We are done waiting...we think.  Adjust the wait time to
 		 * consume events after the count is met.
 		 */
-		if (!(esas2r_lock_set_flags(&a->flags2, AF2_DEV_CNT_OK)
-		      & ilog2(AF2_DEV_CNT_OK)))
+		if (!test_and_set_bit(AF2_DEV_CNT_OK, &a->flags2))
 			a->disc_wait_time = time + 3000;
 
 		/* If we haven't done a full scan yet, do it now. */
-		if (!(esas2r_lock_set_flags(&a->flags2,
-					    AF2_DEV_SCAN) &
-		      ilog2(AF2_DEV_SCAN))) {
+		if (!test_and_set_bit(AF2_DEV_SCAN, &a->flags2)) {
 			spin_lock_irqsave(&a->mem_lock, flags);
 			esas2r_disc_queue_event(a, DCDE_DEV_SCAN);
 			spin_unlock_irqrestore(&a->mem_lock, flags);
-
 			esas2r_trace_exit();
 			return;
 		}
@@ -253,9 +248,7 @@ void esas2r_disc_check_complete(struct esas2r_adapter *a)
 			return;
 		}
 	} else {
-		if (!(esas2r_lock_set_flags(&a->flags2,
-					    AF2_DEV_SCAN) &
-		      ilog2(AF2_DEV_SCAN))) {
+		if (!test_and_set_bit(AF2_DEV_SCAN, &a->flags2)) {
 			spin_lock_irqsave(&a->mem_lock, flags);
 			esas2r_disc_queue_event(a, DCDE_DEV_SCAN);
 			spin_unlock_irqrestore(&a->mem_lock, flags);
@@ -265,8 +258,8 @@ void esas2r_disc_check_complete(struct esas2r_adapter *a)
 	/* We want to stop waiting for devices. */
 	a->disc_wait_time = 0;
 
-	if ((a->flags & AF_DISC_POLLED)
-	    && (a->flags & AF_DISC_IN_PROG)) {
+	if (test_bit(AF_DISC_POLLED, &a->flags) &&
+	    test_bit(AF_DISC_IN_PROG, &a->flags)) {
 		/*
 		 * Polled discovery is still pending so continue the active
 		 * discovery until it is done.  At that point, we will stop
@@ -280,14 +273,14 @@ void esas2r_disc_check_complete(struct esas2r_adapter *a)
 		 * driven; i.e. There is no transition.
 		 */
 		esas2r_disc_fix_curr_requests(a);
-		esas2r_lock_clear_flags(&a->flags, AF_DISC_PENDING);
+		clear_bit(AF_DISC_PENDING, &a->flags);
 
 		/*
 		 * We have deferred target state changes until now because we
 		 * don't want to report any removals (due to the first arrival)
 		 * until the device wait time expires.
 		 */
-		esas2r_lock_set_flags(&a->flags, AF_PORT_CHANGE);
+		set_bit(AF_PORT_CHANGE, &a->flags);
 	}
 
 	esas2r_trace_exit();
@@ -308,7 +301,8 @@ void esas2r_disc_queue_event(struct esas2r_adapter *a, u8 disc_evt)
 	 * Don't start discovery before or during polled discovery.  if we did,
 	 * we would have a deadlock if we are in the ISR already.
 	 */
-	if (!(a->flags & (AF_CHPRST_PENDING | AF_DISC_POLLED)))
+	if (!test_bit(AF_CHPRST_PENDING, &a->flags) &&
+	    !test_bit(AF_DISC_POLLED, &a->flags))
 		esas2r_disc_start_port(a);
 
 	esas2r_trace_exit();
@@ -322,7 +316,7 @@ bool esas2r_disc_start_port(struct esas2r_adapter *a)
 
 	esas2r_trace_enter();
 
-	if (a->flags & AF_DISC_IN_PROG) {
+	if (test_bit(AF_DISC_IN_PROG, &a->flags)) {
 		esas2r_trace_exit();
 
 		return false;
@@ -330,7 +324,7 @@ bool esas2r_disc_start_port(struct esas2r_adapter *a)
 
 	/* If there is a discovery waiting, process it. */
 	if (dc->disc_evt) {
-		if ((a->flags & AF_DISC_POLLED)
+		if (test_bit(AF_DISC_POLLED, &a->flags)
 		    && a->disc_wait_time == 0) {
 			/*
 			 * We are doing polled discovery, but we no longer want
@@ -347,7 +341,7 @@ bool esas2r_disc_start_port(struct esas2r_adapter *a)
 
 		esas2r_hdebug("disc done");
 
-		esas2r_lock_set_flags(&a->flags, AF_PORT_CHANGE);
+		set_bit(AF_PORT_CHANGE, &a->flags);
 
 		esas2r_trace_exit();
 
@@ -356,10 +350,10 @@ bool esas2r_disc_start_port(struct esas2r_adapter *a)
 
 	/* Handle the discovery context */
 	esas2r_trace("disc_evt: %d", dc->disc_evt);
-	esas2r_lock_set_flags(&a->flags, AF_DISC_IN_PROG);
+	set_bit(AF_DISC_IN_PROG, &a->flags);
 	dc->flags = 0;
 
-	if (a->flags & AF_DISC_POLLED)
+	if (test_bit(AF_DISC_POLLED, &a->flags))
 		dc->flags |= DCF_POLLED;
 
 	rq->interrupt_cx = dc;
@@ -379,7 +373,7 @@ bool esas2r_disc_start_port(struct esas2r_adapter *a)
 	}
 
 	/* Continue interrupt driven discovery */
-	if (!(a->flags & AF_DISC_POLLED))
+	if (!test_bit(AF_DISC_POLLED, &a->flags))
 		ret = esas2r_disc_continue(a, rq);
 	else
 		ret = true;
@@ -453,10 +447,10 @@ static bool esas2r_disc_continue(struct esas2r_adapter *a,
 	/* Discovery is done...for now. */
 	rq->interrupt_cx = NULL;
 
-	if (!(a->flags & AF_DISC_PENDING))
+	if (!test_bit(AF_DISC_PENDING, &a->flags))
 		esas2r_disc_fix_curr_requests(a);
 
-	esas2r_lock_clear_flags(&a->flags, AF_DISC_IN_PROG);
+	clear_bit(AF_DISC_IN_PROG, &a->flags);
 
 	/* Start the next discovery. */
 	return esas2r_disc_start_port(a);
@@ -480,7 +474,8 @@ static bool esas2r_disc_start_request(struct esas2r_adapter *a,
 
 	spin_lock_irqsave(&a->queue_lock, flags);
 
-	if (!(a->flags & (AF_CHPRST_PENDING | AF_FLASHING)))
+	if (!test_bit(AF_CHPRST_PENDING, &a->flags) &&
+	    !test_bit(AF_FLASHING, &a->flags))
 		esas2r_disc_local_start_request(a, rq);
 	else
 		list_add_tail(&rq->req_list, &a->defer_list);
diff --git a/drivers/scsi/esas2r/esas2r_flash.c b/drivers/scsi/esas2r/esas2r_flash.c
index 2ec3c23275b8..b7dc59fca7a6 100644
--- a/drivers/scsi/esas2r/esas2r_flash.c
+++ b/drivers/scsi/esas2r/esas2r_flash.c
@@ -231,7 +231,7 @@ static bool load_image(struct esas2r_adapter *a, struct esas2r_request *rq)
 	 * RS_PENDING, FM API tasks will continue.
 	 */
 	rq->req_stat = RS_PENDING;
-	if (a->flags & AF_DEGRADED_MODE)
+	if (test_bit(AF_DEGRADED_MODE, &a->flags))
 		/* not suppported for now */;
 	else
 		build_flash_msg(a, rq);
@@ -315,7 +315,7 @@ static bool complete_fmapi_req(struct esas2r_adapter *a,
 		memset(fc->scratch, 0, FM_BUF_SZ);
 
 	esas2r_enable_heartbeat(a);
-	esas2r_lock_clear_flags(&a->flags, AF_FLASH_LOCK);
+	clear_bit(AF_FLASH_LOCK, &a->flags);
 	return false;
 }
 
@@ -526,7 +526,7 @@ no_cfg:
 			 * The download is complete.  If in degraded mode,
 			 * attempt a chip reset.
 			 */
-			if (a->flags & AF_DEGRADED_MODE)
+			if (test_bit(AF_DEGRADED_MODE, &a->flags))
 				esas2r_local_reset_adapter(a);
 
 			a->flash_ver = fi->cmp_hdr[CH_IT_BIOS].version;
@@ -890,7 +890,7 @@ bool esas2r_process_fs_ioctl(struct esas2r_adapter *a,
 		}
 	}
 
-	if (a->flags & AF_DEGRADED_MODE) {
+	if (test_bit(AF_DEGRADED_MODE, &a->flags)) {
 		fs->status = ATTO_STS_DEGRADED;
 		return false;
 	}
@@ -945,8 +945,12 @@ static bool esas2r_flash_access(struct esas2r_adapter *a, u32 function)
 
 	/* Now wait for the firmware to process it */
 	starttime = jiffies_to_msecs(jiffies);
-	timeout = a->flags &
-		  (AF_CHPRST_PENDING | AF_DISC_PENDING) ? 40000 : 5000;
+
+	if (test_bit(AF_CHPRST_PENDING, &a->flags) ||
+	    test_bit(AF_DISC_PENDING, &a->flags))
+		timeout = 40000;
+	else
+		timeout = 5000;
 
 	while (true) {
 		intstat = esas2r_read_register_dword(a, MU_INT_STATUS_OUT);
@@ -1008,7 +1012,7 @@ bool esas2r_read_flash_block(struct esas2r_adapter *a,
 		u32 offset;
 		u32 iatvr;
 
-		if (a->flags2 & AF2_SERIAL_FLASH)
+		if (test_bit(AF2_SERIAL_FLASH, &a->flags2))
 			iatvr = MW_DATA_ADDR_SER_FLASH + (from & -WINDOW_SIZE);
 		else
 			iatvr = MW_DATA_ADDR_PAR_FLASH + (from & -WINDOW_SIZE);
@@ -1236,9 +1240,9 @@ static void esas2r_nvram_callback(struct esas2r_adapter *a,
 	if (rq->req_stat != RS_PENDING) {
 		/* update the NVRAM state */
 		if (rq->req_stat == RS_SUCCESS)
-			esas2r_lock_set_flags(&a->flags, AF_NVR_VALID);
+			set_bit(AF_NVR_VALID, &a->flags);
 		else
-			esas2r_lock_clear_flags(&a->flags, AF_NVR_VALID);
+			clear_bit(AF_NVR_VALID, &a->flags);
 
 		esas2r_enable_heartbeat(a);
 
@@ -1258,7 +1262,7 @@ bool esas2r_nvram_write(struct esas2r_adapter *a, struct esas2r_request *rq,
 	u32 *sas_address_dwords = (u32 *)&sas_address_bytes[0];
 	struct atto_vda_flash_req *vrq = &rq->vrq->flash;
 
-	if (a->flags & AF_DEGRADED_MODE)
+	if (test_bit(AF_DEGRADED_MODE, &a->flags))
 		return false;
 
 	if (down_interruptible(&a->nvram_semaphore))
@@ -1302,7 +1306,7 @@ bool esas2r_nvram_write(struct esas2r_adapter *a, struct esas2r_request *rq,
 			       FLS_OFFSET_NVR,
 			       sizeof(struct esas2r_sas_nvram));
 
-	if (a->flags & AF_LEGACY_SGE_MODE) {
+	if (test_bit(AF_LEGACY_SGE_MODE, &a->flags)) {
 
 		vrq->data.sge[0].length =
 			cpu_to_le32(SGE_LAST |
@@ -1337,7 +1341,7 @@ bool esas2r_nvram_validate(struct esas2r_adapter *a)
 	} else if (n->version > SASNVR_VERSION) {
 		esas2r_hdebug("invalid NVRAM version");
 	} else {
-		esas2r_lock_set_flags(&a->flags, AF_NVR_VALID);
+		set_bit(AF_NVR_VALID, &a->flags);
 		rslt = true;
 	}
 
@@ -1359,7 +1363,7 @@ void esas2r_nvram_set_defaults(struct esas2r_adapter *a)
 	struct esas2r_sas_nvram *n = a->nvram;
 	u32 time = jiffies_to_msecs(jiffies);
 
-	esas2r_lock_clear_flags(&a->flags, AF_NVR_VALID);
+	clear_bit(AF_NVR_VALID, &a->flags);
 	*n = default_sas_nvram;
 	n->sas_addr[3] |= 0x0F;
 	n->sas_addr[4] = HIBYTE(LOWORD(time));
@@ -1389,7 +1393,7 @@ bool esas2r_fm_api(struct esas2r_adapter *a, struct esas2r_flash_img *fi,
 	u8 j;
 	struct esas2r_component_header *ch;
 
-	if (esas2r_lock_set_flags(&a->flags, AF_FLASH_LOCK) & AF_FLASH_LOCK) {
+	if (test_and_set_bit(AF_FLASH_LOCK, &a->flags)) {
 		/* flag was already set */
 		fi->status = FI_STAT_BUSY;
 		return false;
@@ -1413,7 +1417,7 @@ bool esas2r_fm_api(struct esas2r_adapter *a, struct esas2r_flash_img *fi,
 		return complete_fmapi_req(a, rq, FI_STAT_IMG_VER);
 	}
 
-	if (a->flags & AF_DEGRADED_MODE)
+	if (test_bit(AF_DEGRADED_MODE, &a->flags))
 		return complete_fmapi_req(a, rq, FI_STAT_DEGRADED);
 
 	switch (fi->action) {
diff --git a/drivers/scsi/esas2r/esas2r_init.c b/drivers/scsi/esas2r/esas2r_init.c
index da1869df2408..15d222b407f6 100644
--- a/drivers/scsi/esas2r/esas2r_init.c
+++ b/drivers/scsi/esas2r/esas2r_init.c
@@ -216,7 +216,7 @@ use_legacy_interrupts:
 			goto use_legacy_interrupts;
 		}
 		a->intr_mode = INTR_MODE_MSI;
-		esas2r_lock_set_flags(&a->flags2, AF2_MSI_ENABLED);
+		set_bit(AF2_MSI_ENABLED, &a->flags2);
 		break;
 
 
@@ -252,7 +252,7 @@ static void esas2r_claim_interrupts(struct esas2r_adapter *a)
 		return;
 	}
 
-	esas2r_lock_set_flags(&a->flags2, AF2_IRQ_CLAIMED);
+	set_bit(AF2_IRQ_CLAIMED, &a->flags2);
 	esas2r_log(ESAS2R_LOG_INFO,
 		   "claimed IRQ %d flags: 0x%lx",
 		   a->pcid->irq, flags);
@@ -380,10 +380,10 @@ int esas2r_init_adapter(struct Scsi_Host *host, struct pci_dev *pcid,
 	/* interrupts will be disabled until we are done with init */
 	atomic_inc(&a->dis_ints_cnt);
 	atomic_inc(&a->disable_cnt);
-	a->flags |= AF_CHPRST_PENDING
-		    | AF_DISC_PENDING
-		    | AF_FIRST_INIT
-		    | AF_LEGACY_SGE_MODE;
+	set_bit(AF_CHPRST_PENDING, &a->flags);
+	set_bit(AF_DISC_PENDING, &a->flags);
+	set_bit(AF_FIRST_INIT, &a->flags);
+	set_bit(AF_LEGACY_SGE_MODE, &a->flags);
 
 	a->init_msg = ESAS2R_INIT_MSG_START;
 	a->max_vdareq_size = 128;
@@ -440,11 +440,11 @@ int esas2r_init_adapter(struct Scsi_Host *host, struct pci_dev *pcid,
 
 	esas2r_claim_interrupts(a);
 
-	if (a->flags2 & AF2_IRQ_CLAIMED)
+	if (test_bit(AF2_IRQ_CLAIMED, &a->flags2))
 		esas2r_enable_chip_interrupts(a);
 
-	esas2r_lock_set_flags(&a->flags2, AF2_INIT_DONE);
-	if (!(a->flags & AF_DEGRADED_MODE))
+	set_bit(AF2_INIT_DONE, &a->flags2);
+	if (!test_bit(AF_DEGRADED_MODE, &a->flags))
 		esas2r_kickoff_timer(a);
 	esas2r_debug("esas2r_init_adapter done for %p (%d)",
 		     a, a->disable_cnt);
@@ -457,8 +457,8 @@ static void esas2r_adapter_power_down(struct esas2r_adapter *a,
 {
 	struct esas2r_mem_desc *memdesc, *next;
 
-	if ((a->flags2 & AF2_INIT_DONE)
-	    &&  (!(a->flags & AF_DEGRADED_MODE))) {
+	if ((test_bit(AF2_INIT_DONE, &a->flags2))
+	    &&  (!test_bit(AF_DEGRADED_MODE, &a->flags))) {
 		if (!power_management) {
 			del_timer_sync(&a->timer);
 			tasklet_kill(&a->tasklet);
@@ -508,19 +508,19 @@ static void esas2r_adapter_power_down(struct esas2r_adapter *a,
 	}
 
 	/* Clean up interrupts */
-	if (a->flags2 & AF2_IRQ_CLAIMED) {
+	if (test_bit(AF2_IRQ_CLAIMED, &a->flags2)) {
 		esas2r_log_dev(ESAS2R_LOG_INFO,
 			       &(a->pcid->dev),
 			       "free_irq(%d) called", a->pcid->irq);
 
 		free_irq(a->pcid->irq, a);
 		esas2r_debug("IRQ released");
-		esas2r_lock_clear_flags(&a->flags2, AF2_IRQ_CLAIMED);
+		clear_bit(AF2_IRQ_CLAIMED, &a->flags2);
 	}
 
-	if (a->flags2 & AF2_MSI_ENABLED) {
+	if (test_bit(AF2_MSI_ENABLED, &a->flags2)) {
 		pci_disable_msi(a->pcid);
-		esas2r_lock_clear_flags(&a->flags2, AF2_MSI_ENABLED);
+		clear_bit(AF2_MSI_ENABLED, &a->flags2);
 		esas2r_debug("MSI disabled");
 	}
 
@@ -641,12 +641,10 @@ void esas2r_kill_adapter(int i)
 		pci_set_drvdata(a->pcid, NULL);
 		esas2r_adapters[i] = NULL;
 
-		if (a->flags2 & AF2_INIT_DONE) {
-			esas2r_lock_clear_flags(&a->flags2,
-						AF2_INIT_DONE);
+		if (test_bit(AF2_INIT_DONE, &a->flags2)) {
+			clear_bit(AF2_INIT_DONE, &a->flags2);
 
-			esas2r_lock_set_flags(&a->flags,
-					      AF_DEGRADED_MODE);
+			set_bit(AF_DEGRADED_MODE, &a->flags);
 
 			esas2r_log_dev(ESAS2R_LOG_INFO,
 				       &(a->host->shost_gendev),
@@ -759,7 +757,7 @@ int esas2r_resume(struct pci_dev *pdev)
 
 	esas2r_claim_interrupts(a);
 
-	if (a->flags2 & AF2_IRQ_CLAIMED) {
+	if (test_bit(AF2_IRQ_CLAIMED, &a->flags2)) {
 		/*
 		 * Now that system interrupt(s) are claimed, we can enable
 		 * chip interrupts.
@@ -781,7 +779,7 @@ error_exit:
 
 bool esas2r_set_degraded_mode(struct esas2r_adapter *a, char *error_str)
 {
-	esas2r_lock_set_flags(&a->flags, AF_DEGRADED_MODE);
+	set_bit(AF_DEGRADED_MODE, &a->flags);
 	esas2r_log(ESAS2R_LOG_CRIT,
 		   "setting adapter to degraded mode: %s\n", error_str);
 	return false;
@@ -896,7 +894,7 @@ bool esas2r_init_adapter_struct(struct esas2r_adapter *a,
 	    && (a->pcid->subsystem_device & ATTO_SSDID_TBT))
 		a->flags2 |= AF2_THUNDERBOLT;
 
-	if (a->flags2 & AF2_THUNDERBOLT)
+	if (test_bit(AF2_THUNDERBOLT, &a->flags2))
 		a->flags2 |= AF2_SERIAL_FLASH;
 
 	if (a->pcid->subsystem_device == ATTO_TLSH_1068)
@@ -956,14 +954,14 @@ bool esas2r_init_adapter_struct(struct esas2r_adapter *a,
 	a->outbound_copy = (u32 volatile *)high;
 	high += sizeof(u32);
 
-	if (!(a->flags & AF_NVR_VALID))
+	if (!test_bit(AF_NVR_VALID, &a->flags))
 		esas2r_nvram_set_defaults(a);
 
 	/* update the caller's uncached memory area pointer */
 	*uncached_area = (void *)high;
 
 	/* initialize the allocated memory */
-	if (a->flags & AF_FIRST_INIT) {
+	if (test_bit(AF_FIRST_INIT, &a->flags)) {
 		memset(a->req_table, 0,
 		       (num_requests + num_ae_requests +
 			1) * sizeof(struct esas2r_request *));
@@ -1019,7 +1017,7 @@ bool esas2r_check_adapter(struct esas2r_adapter *a)
 	 * if the chip reset detected flag is set, we can bypass a bunch of
 	 * stuff.
 	 */
-	if (a->flags & AF_CHPRST_DETECTED)
+	if (test_bit(AF_CHPRST_DETECTED, &a->flags))
 		goto skip_chip_reset;
 
 	/*
@@ -1057,14 +1055,12 @@ bool esas2r_check_adapter(struct esas2r_adapter *a)
 						    doorbell);
 
 			if (ver == DRBL_FW_VER_0) {
-				esas2r_lock_set_flags(&a->flags,
-						      AF_LEGACY_SGE_MODE);
+				set_bit(AF_LEGACY_SGE_MODE, &a->flags);
 
 				a->max_vdareq_size = 128;
 				a->build_sgl = esas2r_build_sg_list_sge;
 			} else if (ver == DRBL_FW_VER_1) {
-				esas2r_lock_clear_flags(&a->flags,
-							AF_LEGACY_SGE_MODE);
+				clear_bit(AF_LEGACY_SGE_MODE, &a->flags);
 
 				a->max_vdareq_size = 1024;
 				a->build_sgl = esas2r_build_sg_list_prd;
@@ -1139,7 +1135,7 @@ skip_chip_reset:
 	*a->outbound_copy =
 		a->last_write =
 			a->last_read = a->list_size - 1;
-	esas2r_lock_set_flags(&a->flags, AF_COMM_LIST_TOGGLE);
+	set_bit(AF_COMM_LIST_TOGGLE, &a->flags);
 	esas2r_write_register_dword(a, MU_IN_LIST_WRITE, MU_ILW_TOGGLE |
 				    a->last_write);
 	esas2r_write_register_dword(a, MU_OUT_LIST_COPY, MU_OLC_TOGGLE |
@@ -1204,9 +1200,9 @@ skip_chip_reset:
 	 */
 	doorbell = esas2r_read_register_dword(a, MU_DOORBELL_IN_ENB);
 	if (doorbell & DRBL_POWER_DOWN)
-		esas2r_lock_set_flags(&a->flags2, AF2_VDA_POWER_DOWN);
+		set_bit(AF2_VDA_POWER_DOWN, &a->flags2);
 	else
-		esas2r_lock_clear_flags(&a->flags2, AF2_VDA_POWER_DOWN);
+		clear_bit(AF2_VDA_POWER_DOWN, &a->flags2);
 
 	/*
 	 * enable assertion of outbound queue and doorbell interrupts in the
@@ -1266,9 +1262,8 @@ static bool esas2r_format_init_msg(struct esas2r_adapter *a,
 		 * unsupported config requests correctly.
 		 */
 
-		if ((a->flags2 & AF2_THUNDERBOLT)
-		    || (be32_to_cpu(a->fw_version) >
-			be32_to_cpu(0x47020052))) {
+		if ((test_bit(AF2_THUNDERBOLT, &a->flags2))
+		    || (be32_to_cpu(a->fw_version) > 0x00524702)) {
 			esas2r_hdebug("CFG get init");
 			esas2r_build_cfg_req(a,
 					     rq,
@@ -1361,10 +1356,10 @@ bool esas2r_init_adapter_hw(struct esas2r_adapter *a, bool init_poll)
 	struct esas2r_request *rq;
 	u32 i;
 
-	if (a->flags & AF_DEGRADED_MODE)
+	if (test_bit(AF_DEGRADED_MODE, &a->flags))
 		goto exit;
 
-	if (!(a->flags & AF_NVR_VALID)) {
+	if (!test_bit(AF_NVR_VALID, &a->flags)) {
 		if (!esas2r_nvram_read_direct(a))
 			esas2r_log(ESAS2R_LOG_WARN,
 				   "invalid/missing NVRAM parameters");
@@ -1376,8 +1371,8 @@ bool esas2r_init_adapter_hw(struct esas2r_adapter *a, bool init_poll)
 	}
 
 	/* The firmware is ready. */
-	esas2r_lock_clear_flags(&a->flags, AF_DEGRADED_MODE);
-	esas2r_lock_clear_flags(&a->flags, AF_CHPRST_PENDING);
+	clear_bit(AF_DEGRADED_MODE, &a->flags);
+	clear_bit(AF_CHPRST_PENDING, &a->flags);
 
 	/* Post all the async event requests */
 	for (i = 0, rq = a->first_ae_req; i < num_ae_requests; i++, rq++)
@@ -1398,8 +1393,8 @@ bool esas2r_init_adapter_hw(struct esas2r_adapter *a, bool init_poll)
 
 	esas2r_hdebug("firmware revision: %s", a->fw_rev);
 
-	if ((a->flags & AF_CHPRST_DETECTED)
-	    && (a->flags & AF_FIRST_INIT)) {
+	if (test_bit(AF_CHPRST_DETECTED, &a->flags)
+	    && (test_bit(AF_FIRST_INIT, &a->flags))) {
 		esas2r_enable_chip_interrupts(a);
 		return true;
 	}
@@ -1423,18 +1418,18 @@ bool esas2r_init_adapter_hw(struct esas2r_adapter *a, bool init_poll)
 		 * Block Tasklets from getting scheduled and indicate this is
 		 * polled discovery.
 		 */
-		esas2r_lock_set_flags(&a->flags, AF_TASKLET_SCHEDULED);
-		esas2r_lock_set_flags(&a->flags, AF_DISC_POLLED);
+		set_bit(AF_TASKLET_SCHEDULED, &a->flags);
+		set_bit(AF_DISC_POLLED, &a->flags);
 
 		/*
 		 * Temporarily bring the disable count to zero to enable
 		 * deferred processing.  Note that the count is already zero
 		 * after the first initialization.
 		 */
-		if (a->flags & AF_FIRST_INIT)
+		if (test_bit(AF_FIRST_INIT, &a->flags))
 			atomic_dec(&a->disable_cnt);
 
-		while (a->flags & AF_DISC_PENDING) {
+		while (test_bit(AF_DISC_PENDING, &a->flags)) {
 			schedule_timeout_interruptible(msecs_to_jiffies(100));
 
 			/*
@@ -1453,7 +1448,7 @@ bool esas2r_init_adapter_hw(struct esas2r_adapter *a, bool init_poll)
 			 * we have to make sure the timer tick processes the
 			 * doorbell indicating the firmware is ready.
 			 */
-			if (!(a->flags & AF_CHPRST_PENDING))
+			if (!test_bit(AF_CHPRST_PENDING, &a->flags))
 				esas2r_disc_check_for_work(a);
 
 			/* Simulate a timer tick. */
@@ -1473,11 +1468,11 @@ bool esas2r_init_adapter_hw(struct esas2r_adapter *a, bool init_poll)
 
 		}
 
-		if (a->flags & AF_FIRST_INIT)
+		if (test_bit(AF_FIRST_INIT, &a->flags))
 			atomic_inc(&a->disable_cnt);
 
-		esas2r_lock_clear_flags(&a->flags, AF_DISC_POLLED);
-		esas2r_lock_clear_flags(&a->flags, AF_TASKLET_SCHEDULED);
+		clear_bit(AF_DISC_POLLED, &a->flags);
+		clear_bit(AF_TASKLET_SCHEDULED, &a->flags);
 	}
 
 
@@ -1504,26 +1499,26 @@ exit:
 	 * need to get done before we exit.
 	 */
 
-	if ((a->flags & AF_CHPRST_DETECTED)
-	    && (a->flags & AF_FIRST_INIT)) {
+	if (test_bit(AF_CHPRST_DETECTED, &a->flags) &&
+	    test_bit(AF_FIRST_INIT, &a->flags)) {
 		/*
 		 * Reinitialization was performed during the first
 		 * initialization.  Only clear the chip reset flag so the
 		 * original device polling is not cancelled.
 		 */
 		if (!rslt)
-			esas2r_lock_clear_flags(&a->flags, AF_CHPRST_PENDING);
+			clear_bit(AF_CHPRST_PENDING, &a->flags);
 	} else {
 		/* First initialization or a subsequent re-init is complete. */
 		if (!rslt) {
-			esas2r_lock_clear_flags(&a->flags, AF_CHPRST_PENDING);
-			esas2r_lock_clear_flags(&a->flags, AF_DISC_PENDING);
+			clear_bit(AF_CHPRST_PENDING, &a->flags);
+			clear_bit(AF_DISC_PENDING, &a->flags);
 		}
 
 
 		/* Enable deferred processing after the first initialization. */
-		if (a->flags & AF_FIRST_INIT) {
-			esas2r_lock_clear_flags(&a->flags, AF_FIRST_INIT);
+		if (test_bit(AF_FIRST_INIT, &a->flags)) {
+			clear_bit(AF_FIRST_INIT, &a->flags);
 
 			if (atomic_dec_return(&a->disable_cnt) == 0)
 				esas2r_do_deferred_processes(a);
@@ -1535,7 +1530,7 @@ exit:
 
 void esas2r_reset_adapter(struct esas2r_adapter *a)
 {
-	esas2r_lock_set_flags(&a->flags, AF_OS_RESET);
+	set_bit(AF_OS_RESET, &a->flags);
 	esas2r_local_reset_adapter(a);
 	esas2r_schedule_tasklet(a);
 }
@@ -1550,17 +1545,17 @@ void esas2r_reset_chip(struct esas2r_adapter *a)
 	 * dump is located in the upper 512KB of the onchip SRAM.  Make sure
 	 * to not overwrite a previous crash that was saved.
 	 */
-	if ((a->flags2 & AF2_COREDUMP_AVAIL)
-	    && !(a->flags2 & AF2_COREDUMP_SAVED)) {
+	if (test_bit(AF2_COREDUMP_AVAIL, &a->flags2) &&
+	    !test_bit(AF2_COREDUMP_SAVED, &a->flags2)) {
 		esas2r_read_mem_block(a,
 				      a->fw_coredump_buff,
 				      MW_DATA_ADDR_SRAM + 0x80000,
 				      ESAS2R_FWCOREDUMP_SZ);
 
-		esas2r_lock_set_flags(&a->flags2, AF2_COREDUMP_SAVED);
+		set_bit(AF2_COREDUMP_SAVED, &a->flags2);
 	}
 
-	esas2r_lock_clear_flags(&a->flags2, AF2_COREDUMP_AVAIL);
+	clear_bit(AF2_COREDUMP_AVAIL, &a->flags2);
 
 	/* Reset the chip */
 	if (a->pcid->revision == MVR_FREY_B2)
@@ -1606,10 +1601,10 @@ static void esas2r_power_down_notify_firmware(struct esas2r_adapter *a)
  */
 void esas2r_power_down(struct esas2r_adapter *a)
 {
-	esas2r_lock_set_flags(&a->flags, AF_POWER_MGT);
-	esas2r_lock_set_flags(&a->flags, AF_POWER_DOWN);
+	set_bit(AF_POWER_MGT, &a->flags);
+	set_bit(AF_POWER_DOWN, &a->flags);
 
-	if (!(a->flags & AF_DEGRADED_MODE)) {
+	if (!test_bit(AF_DEGRADED_MODE, &a->flags)) {
 		u32 starttime;
 		u32 doorbell;
 
@@ -1649,14 +1644,14 @@ void esas2r_power_down(struct esas2r_adapter *a)
 		 * For versions of firmware that support it tell them the driver
 		 * is powering down.
 		 */
-		if (a->flags2 & AF2_VDA_POWER_DOWN)
+		if (test_bit(AF2_VDA_POWER_DOWN, &a->flags2))
 			esas2r_power_down_notify_firmware(a);
 	}
 
 	/* Suspend I/O processing. */
-	esas2r_lock_set_flags(&a->flags, AF_OS_RESET);
-	esas2r_lock_set_flags(&a->flags, AF_DISC_PENDING);
-	esas2r_lock_set_flags(&a->flags, AF_CHPRST_PENDING);
+	set_bit(AF_OS_RESET, &a->flags);
+	set_bit(AF_DISC_PENDING, &a->flags);
+	set_bit(AF_CHPRST_PENDING, &a->flags);
 
 	esas2r_process_adapter_reset(a);
 
@@ -1673,9 +1668,9 @@ bool esas2r_power_up(struct esas2r_adapter *a, bool init_poll)
 {
 	bool ret;
 
-	esas2r_lock_clear_flags(&a->flags, AF_POWER_DOWN);
+	clear_bit(AF_POWER_DOWN, &a->flags);
 	esas2r_init_pci_cfg_space(a);
-	esas2r_lock_set_flags(&a->flags, AF_FIRST_INIT);
+	set_bit(AF_FIRST_INIT, &a->flags);
 	atomic_inc(&a->disable_cnt);
 
 	/* reinitialize the adapter */
@@ -1687,17 +1682,17 @@ bool esas2r_power_up(struct esas2r_adapter *a, bool init_poll)
 	esas2r_send_reset_ae(a, true);
 
 	/* clear this flag after initialization. */
-	esas2r_lock_clear_flags(&a->flags, AF_POWER_MGT);
+	clear_bit(AF_POWER_MGT, &a->flags);
 	return ret;
 }
 
 bool esas2r_is_adapter_present(struct esas2r_adapter *a)
 {
-	if (a->flags & AF_NOT_PRESENT)
+	if (test_bit(AF_NOT_PRESENT, &a->flags))
 		return false;
 
 	if (esas2r_read_register_dword(a, MU_DOORBELL_OUT) == 0xFFFFFFFF) {
-		esas2r_lock_set_flags(&a->flags, AF_NOT_PRESENT);
+		set_bit(AF_NOT_PRESENT, &a->flags);
 
 		return false;
 	}
diff --git a/drivers/scsi/esas2r/esas2r_int.c b/drivers/scsi/esas2r/esas2r_int.c
index c2d4ff57c5c3..f16d6bcf9bb6 100644
--- a/drivers/scsi/esas2r/esas2r_int.c
+++ b/drivers/scsi/esas2r/esas2r_int.c
@@ -96,7 +96,7 @@ irqreturn_t esas2r_interrupt(int irq, void *dev_id)
 	if (!esas2r_adapter_interrupt_pending(a))
 		return IRQ_NONE;
 
-	esas2r_lock_set_flags(&a->flags2, AF2_INT_PENDING);
+	set_bit(AF2_INT_PENDING, &a->flags2);
 	esas2r_schedule_tasklet(a);
 
 	return IRQ_HANDLED;
@@ -317,9 +317,10 @@ void esas2r_do_deferred_processes(struct esas2r_adapter *a)
 	 *  = 2 - can start any request
 	 */
 
-	if (a->flags & (AF_CHPRST_PENDING | AF_FLASHING))
+	if (test_bit(AF_CHPRST_PENDING, &a->flags) ||
+	    test_bit(AF_FLASHING, &a->flags))
 		startreqs = 0;
-	else if (a->flags & AF_DISC_PENDING)
+	else if (test_bit(AF_DISC_PENDING, &a->flags))
 		startreqs = 1;
 
 	atomic_inc(&a->disable_cnt);
@@ -367,7 +368,7 @@ void esas2r_do_deferred_processes(struct esas2r_adapter *a)
 				 * Flashing could have been set by last local
 				 * start
 				 */
-				if (a->flags & AF_FLASHING)
+				if (test_bit(AF_FLASHING, &a->flags))
 					break;
 			}
 		}
@@ -404,7 +405,7 @@ void esas2r_process_adapter_reset(struct esas2r_adapter *a)
 
 		dc->disc_evt = 0;
 
-		esas2r_lock_clear_flags(&a->flags, AF_DISC_IN_PROG);
+		clear_bit(AF_DISC_IN_PROG, &a->flags);
 	}
 
 	/*
@@ -425,7 +426,7 @@ void esas2r_process_adapter_reset(struct esas2r_adapter *a)
 		a->last_write =
 			a->last_read = a->list_size - 1;
 
-	esas2r_lock_set_flags(&a->flags, AF_COMM_LIST_TOGGLE);
+	set_bit(AF_COMM_LIST_TOGGLE, &a->flags);
 
 	/* Kill all the requests on the active list */
 	list_for_each(element, &a->defer_list) {
@@ -470,7 +471,7 @@ static void esas2r_process_bus_reset(struct esas2r_adapter *a)
 	if (atomic_read(&a->disable_cnt) == 0)
 		esas2r_do_deferred_processes(a);
 
-	esas2r_lock_clear_flags(&a->flags, AF_OS_RESET);
+	clear_bit(AF_OS_RESET, &a->flags);
 
 	esas2r_trace_exit();
 }
@@ -478,10 +479,10 @@ static void esas2r_process_bus_reset(struct esas2r_adapter *a)
 static void esas2r_chip_rst_needed_during_tasklet(struct esas2r_adapter *a)
 {
 
-	esas2r_lock_clear_flags(&a->flags, AF_CHPRST_NEEDED);
-	esas2r_lock_clear_flags(&a->flags, AF_BUSRST_NEEDED);
-	esas2r_lock_clear_flags(&a->flags, AF_BUSRST_DETECTED);
-	esas2r_lock_clear_flags(&a->flags, AF_BUSRST_PENDING);
+	clear_bit(AF_CHPRST_NEEDED, &a->flags);
+	clear_bit(AF_BUSRST_NEEDED, &a->flags);
+	clear_bit(AF_BUSRST_DETECTED, &a->flags);
+	clear_bit(AF_BUSRST_PENDING, &a->flags);
 	/*
 	 * Make sure we don't get attempt more than 3 resets
 	 * when the uptime between resets does not exceed one
@@ -507,10 +508,10 @@ static void esas2r_chip_rst_needed_during_tasklet(struct esas2r_adapter *a)
 		 * prevent the heartbeat from trying to recover.
 		 */
 
-		esas2r_lock_set_flags(&a->flags, AF_DEGRADED_MODE);
-		esas2r_lock_set_flags(&a->flags, AF_DISABLED);
-		esas2r_lock_clear_flags(&a->flags, AF_CHPRST_PENDING);
-		esas2r_lock_clear_flags(&a->flags, AF_DISC_PENDING);
+		set_bit(AF_DEGRADED_MODE, &a->flags);
+		set_bit(AF_DISABLED, &a->flags);
+		clear_bit(AF_CHPRST_PENDING, &a->flags);
+		clear_bit(AF_DISC_PENDING, &a->flags);
 
 		esas2r_disable_chip_interrupts(a);
 		a->int_mask = 0;
@@ -519,18 +520,17 @@ static void esas2r_chip_rst_needed_during_tasklet(struct esas2r_adapter *a)
 		esas2r_log(ESAS2R_LOG_CRIT,
 			   "Adapter disabled because of hardware failure");
 	} else {
-		u32 flags =
-			esas2r_lock_set_flags(&a->flags, AF_CHPRST_STARTED);
+		bool alrdyrst = test_and_set_bit(AF_CHPRST_STARTED, &a->flags);
 
-		if (!(flags & AF_CHPRST_STARTED))
+		if (!alrdyrst)
 			/*
 			 * Only disable interrupts if this is
 			 * the first reset attempt.
 			 */
 			esas2r_disable_chip_interrupts(a);
 
-		if ((a->flags & AF_POWER_MGT) && !(a->flags & AF_FIRST_INIT) &&
-		    !(flags & AF_CHPRST_STARTED)) {
+		if ((test_bit(AF_POWER_MGT, &a->flags)) &&
+		    !test_bit(AF_FIRST_INIT, &a->flags) && !alrdyrst) {
 			/*
 			 * Don't reset the chip on the first
 			 * deferred power up attempt.
@@ -543,10 +543,10 @@ static void esas2r_chip_rst_needed_during_tasklet(struct esas2r_adapter *a)
 		/* Kick off the reinitialization */
 		a->chip_uptime += ESAS2R_CHP_UPTIME_CNT;
 		a->chip_init_time = jiffies_to_msecs(jiffies);
-		if (!(a->flags & AF_POWER_MGT)) {
+		if (!test_bit(AF_POWER_MGT, &a->flags)) {
 			esas2r_process_adapter_reset(a);
 
-			if (!(flags & AF_CHPRST_STARTED)) {
+			if (!alrdyrst) {
 				/* Remove devices now that I/O is cleaned up. */
 				a->prev_dev_cnt =
 					esas2r_targ_db_get_tgt_cnt(a);
@@ -560,38 +560,37 @@ static void esas2r_chip_rst_needed_during_tasklet(struct esas2r_adapter *a)
 
 static void esas2r_handle_chip_rst_during_tasklet(struct esas2r_adapter *a)
 {
-	while (a->flags & AF_CHPRST_DETECTED) {
+	while (test_bit(AF_CHPRST_DETECTED, &a->flags)) {
 		/*
 		 * Balance the enable in esas2r_initadapter_hw.
 		 * Esas2r_power_down already took care of it for power
 		 * management.
 		 */
-		if (!(a->flags & AF_DEGRADED_MODE) && !(a->flags &
-							AF_POWER_MGT))
+		if (!test_bit(AF_DEGRADED_MODE, &a->flags) &&
+		    !test_bit(AF_POWER_MGT, &a->flags))
 			esas2r_disable_chip_interrupts(a);
 
 		/* Reinitialize the chip. */
 		esas2r_check_adapter(a);
 		esas2r_init_adapter_hw(a, 0);
 
-		if (a->flags & AF_CHPRST_NEEDED)
+		if (test_bit(AF_CHPRST_NEEDED, &a->flags))
 			break;
 
-		if (a->flags & AF_POWER_MGT) {
+		if (test_bit(AF_POWER_MGT, &a->flags)) {
 			/* Recovery from power management. */
-			if (a->flags & AF_FIRST_INIT) {
+			if (test_bit(AF_FIRST_INIT, &a->flags)) {
 				/* Chip reset during normal power up */
 				esas2r_log(ESAS2R_LOG_CRIT,
 					   "The firmware was reset during a normal power-up sequence");
 			} else {
 				/* Deferred power up complete. */
-				esas2r_lock_clear_flags(&a->flags,
-							AF_POWER_MGT);
+				clear_bit(AF_POWER_MGT, &a->flags);
 				esas2r_send_reset_ae(a, true);
 			}
 		} else {
 			/* Recovery from online chip reset. */
-			if (a->flags & AF_FIRST_INIT) {
+			if (test_bit(AF_FIRST_INIT, &a->flags)) {
 				/* Chip reset during driver load */
 			} else {
 				/* Chip reset after driver load */
@@ -602,14 +601,14 @@ static void esas2r_handle_chip_rst_during_tasklet(struct esas2r_adapter *a)
 				   "Recovering from a chip reset while the chip was online");
 		}
 
-		esas2r_lock_clear_flags(&a->flags, AF_CHPRST_STARTED);
+		clear_bit(AF_CHPRST_STARTED, &a->flags);
 		esas2r_enable_chip_interrupts(a);
 
 		/*
 		 * Clear this flag last!  this indicates that the chip has been
 		 * reset already during initialization.
 		 */
-		esas2r_lock_clear_flags(&a->flags, AF_CHPRST_DETECTED);
+		clear_bit(AF_CHPRST_DETECTED, &a->flags);
 	}
 }
 
@@ -617,26 +616,28 @@ static void esas2r_handle_chip_rst_during_tasklet(struct esas2r_adapter *a)
 /* Perform deferred tasks when chip interrupts are disabled */
 void esas2r_do_tasklet_tasks(struct esas2r_adapter *a)
 {
-	if (a->flags & (AF_CHPRST_NEEDED | AF_CHPRST_DETECTED)) {
-		if (a->flags & AF_CHPRST_NEEDED)
+
+	if (test_bit(AF_CHPRST_NEEDED, &a->flags) ||
+	    test_bit(AF_CHPRST_DETECTED, &a->flags)) {
+		if (test_bit(AF_CHPRST_NEEDED, &a->flags))
 			esas2r_chip_rst_needed_during_tasklet(a);
 
 		esas2r_handle_chip_rst_during_tasklet(a);
 	}
 
-	if (a->flags & AF_BUSRST_NEEDED) {
+	if (test_bit(AF_BUSRST_NEEDED, &a->flags)) {
 		esas2r_hdebug("hard resetting bus");
 
-		esas2r_lock_clear_flags(&a->flags, AF_BUSRST_NEEDED);
+		clear_bit(AF_BUSRST_NEEDED, &a->flags);
 
-		if (a->flags & AF_FLASHING)
-			esas2r_lock_set_flags(&a->flags, AF_BUSRST_DETECTED);
+		if (test_bit(AF_FLASHING, &a->flags))
+			set_bit(AF_BUSRST_DETECTED, &a->flags);
 		else
 			esas2r_write_register_dword(a, MU_DOORBELL_IN,
 						    DRBL_RESET_BUS);
 	}
 
-	if (a->flags & AF_BUSRST_DETECTED) {
+	if (test_bit(AF_BUSRST_DETECTED, &a->flags)) {
 		esas2r_process_bus_reset(a);
 
 		esas2r_log_dev(ESAS2R_LOG_WARN,
@@ -645,14 +646,14 @@ void esas2r_do_tasklet_tasks(struct esas2r_adapter *a)
 
 		scsi_report_bus_reset(a->host, 0);
 
-		esas2r_lock_clear_flags(&a->flags, AF_BUSRST_DETECTED);
-		esas2r_lock_clear_flags(&a->flags, AF_BUSRST_PENDING);
+		clear_bit(AF_BUSRST_DETECTED, &a->flags);
+		clear_bit(AF_BUSRST_PENDING, &a->flags);
 
 		esas2r_log(ESAS2R_LOG_WARN, "Bus reset complete");
 	}
 
-	if (a->flags & AF_PORT_CHANGE) {
-		esas2r_lock_clear_flags(&a->flags, AF_PORT_CHANGE);
+	if (test_bit(AF_PORT_CHANGE, &a->flags)) {
+		clear_bit(AF_PORT_CHANGE, &a->flags);
 
 		esas2r_targ_db_report_changes(a);
 	}
@@ -672,10 +673,10 @@ static void esas2r_doorbell_interrupt(struct esas2r_adapter *a, u32 doorbell)
 	esas2r_write_register_dword(a, MU_DOORBELL_OUT, doorbell);
 
 	if (doorbell & DRBL_RESET_BUS)
-		esas2r_lock_set_flags(&a->flags, AF_BUSRST_DETECTED);
+		set_bit(AF_BUSRST_DETECTED, &a->flags);
 
 	if (doorbell & DRBL_FORCE_INT)
-		esas2r_lock_clear_flags(&a->flags, AF_HEARTBEAT);
+		clear_bit(AF_HEARTBEAT, &a->flags);
 
 	if (doorbell & DRBL_PANIC_REASON_MASK) {
 		esas2r_hdebug("*** Firmware Panic ***");
@@ -683,7 +684,7 @@ static void esas2r_doorbell_interrupt(struct esas2r_adapter *a, u32 doorbell)
 	}
 
 	if (doorbell & DRBL_FW_RESET) {
-		esas2r_lock_set_flags(&a->flags2, AF2_COREDUMP_AVAIL);
+		set_bit(AF2_COREDUMP_AVAIL, &a->flags2);
 		esas2r_local_reset_adapter(a);
 	}
 
@@ -918,7 +919,7 @@ void esas2r_complete_request(struct esas2r_adapter *a,
 {
 	if (rq->vrq->scsi.function == VDA_FUNC_FLASH
 	    && rq->vrq->flash.sub_func == VDA_FLASH_COMMIT)
-		esas2r_lock_clear_flags(&a->flags, AF_FLASHING);
+		clear_bit(AF_FLASHING, &a->flags);
 
 	/* See if we setup a callback to do special processing */
 
diff --git a/drivers/scsi/esas2r/esas2r_io.c b/drivers/scsi/esas2r/esas2r_io.c
index 324e2626a08b..a8df916cd57a 100644
--- a/drivers/scsi/esas2r/esas2r_io.c
+++ b/drivers/scsi/esas2r/esas2r_io.c
@@ -49,7 +49,8 @@ void esas2r_start_request(struct esas2r_adapter *a, struct esas2r_request *rq)
 	struct esas2r_request *startrq = rq;
 	unsigned long flags;
 
-	if (unlikely(a->flags & (AF_DEGRADED_MODE | AF_POWER_DOWN))) {
+	if (unlikely(test_bit(AF_DEGRADED_MODE, &a->flags) ||
+		     test_bit(AF_POWER_DOWN, &a->flags))) {
 		if (rq->vrq->scsi.function == VDA_FUNC_SCSI)
 			rq->req_stat = RS_SEL2;
 		else
@@ -69,8 +70,8 @@ void esas2r_start_request(struct esas2r_adapter *a, struct esas2r_request *rq)
 			 * Note that if AF_DISC_PENDING is set than this will
 			 * go on the defer queue.
 			 */
-			if (unlikely(t->target_state != TS_PRESENT
-				     && !(a->flags & AF_DISC_PENDING)))
+			if (unlikely(t->target_state != TS_PRESENT &&
+				     !test_bit(AF_DISC_PENDING, &a->flags)))
 				rq->req_stat = RS_SEL;
 		}
 	}
@@ -91,8 +92,9 @@ void esas2r_start_request(struct esas2r_adapter *a, struct esas2r_request *rq)
 	spin_lock_irqsave(&a->queue_lock, flags);
 
 	if (likely(list_empty(&a->defer_list) &&
-		   !(a->flags &
-		     (AF_CHPRST_PENDING | AF_FLASHING | AF_DISC_PENDING))))
+		   !test_bit(AF_CHPRST_PENDING, &a->flags) &&
+		   !test_bit(AF_FLASHING, &a->flags) &&
+		   !test_bit(AF_DISC_PENDING, &a->flags)))
 		esas2r_local_start_request(a, startrq);
 	else
 		list_add_tail(&startrq->req_list, &a->defer_list);
@@ -124,7 +126,7 @@ void esas2r_local_start_request(struct esas2r_adapter *a,
 
 	if (unlikely(rq->vrq->scsi.function == VDA_FUNC_FLASH
 		     && rq->vrq->flash.sub_func == VDA_FLASH_COMMIT))
-		esas2r_lock_set_flags(&a->flags, AF_FLASHING);
+		set_bit(AF_FLASHING, &a->flags);
 
 	list_add_tail(&rq->req_list, &a->active_list);
 	esas2r_start_vda_request(a, rq);
@@ -147,11 +149,10 @@ void esas2r_start_vda_request(struct esas2r_adapter *a,
 	if (a->last_write >= a->list_size) {
 		a->last_write = 0;
 		/* update the toggle bit */
-		if (a->flags & AF_COMM_LIST_TOGGLE)
-			esas2r_lock_clear_flags(&a->flags,
-						AF_COMM_LIST_TOGGLE);
+		if (test_bit(AF_COMM_LIST_TOGGLE, &a->flags))
+			clear_bit(AF_COMM_LIST_TOGGLE, &a->flags);
 		else
-			esas2r_lock_set_flags(&a->flags, AF_COMM_LIST_TOGGLE);
+			set_bit(AF_COMM_LIST_TOGGLE, &a->flags);
 	}
 
 	element =
@@ -169,7 +170,7 @@ void esas2r_start_vda_request(struct esas2r_adapter *a,
 	/* Update the write pointer */
 	dw = a->last_write;
 
-	if (a->flags & AF_COMM_LIST_TOGGLE)
+	if (test_bit(AF_COMM_LIST_TOGGLE, &a->flags))
 		dw |= MU_ILW_TOGGLE;
 
 	esas2r_trace("rq->vrq->scsi.handle:%x", rq->vrq->scsi.handle);
@@ -687,18 +688,14 @@ static void esas2r_handle_pending_reset(struct esas2r_adapter *a, u32 currtime)
 			esas2r_write_register_dword(a, MU_DOORBELL_OUT,
 						    doorbell);
 			if (ver == DRBL_FW_VER_0) {
-				esas2r_lock_set_flags(&a->flags,
-						      AF_CHPRST_DETECTED);
-				esas2r_lock_set_flags(&a->flags,
-						      AF_LEGACY_SGE_MODE);
+				set_bit(AF_CHPRST_DETECTED, &a->flags);
+				set_bit(AF_LEGACY_SGE_MODE, &a->flags);
 
 				a->max_vdareq_size = 128;
 				a->build_sgl = esas2r_build_sg_list_sge;
 			} else if (ver == DRBL_FW_VER_1) {
-				esas2r_lock_set_flags(&a->flags,
-						      AF_CHPRST_DETECTED);
-				esas2r_lock_clear_flags(&a->flags,
-							AF_LEGACY_SGE_MODE);
+				set_bit(AF_CHPRST_DETECTED, &a->flags);
+				clear_bit(AF_LEGACY_SGE_MODE, &a->flags);
 
 				a->max_vdareq_size = 1024;
 				a->build_sgl = esas2r_build_sg_list_prd;
@@ -719,28 +716,27 @@ void esas2r_timer_tick(struct esas2r_adapter *a)
 	a->last_tick_time = currtime;
 
 	/* count down the uptime */
-	if (a->chip_uptime
-	    && !(a->flags & (AF_CHPRST_PENDING | AF_DISC_PENDING))) {
+	if (a->chip_uptime &&
+	    !test_bit(AF_CHPRST_PENDING, &a->flags) &&
+	    !test_bit(AF_DISC_PENDING, &a->flags)) {
 		if (deltatime >= a->chip_uptime)
 			a->chip_uptime = 0;
 		else
 			a->chip_uptime -= deltatime;
 	}
 
-	if (a->flags & AF_CHPRST_PENDING) {
-		if (!(a->flags & AF_CHPRST_NEEDED)
-		    && !(a->flags & AF_CHPRST_DETECTED))
+	if (test_bit(AF_CHPRST_PENDING, &a->flags)) {
+		if (!test_bit(AF_CHPRST_NEEDED, &a->flags) &&
+		    !test_bit(AF_CHPRST_DETECTED, &a->flags))
 			esas2r_handle_pending_reset(a, currtime);
 	} else {
-		if (a->flags & AF_DISC_PENDING)
+		if (test_bit(AF_DISC_PENDING, &a->flags))
 			esas2r_disc_check_complete(a);
-
-		if (a->flags & AF_HEARTBEAT_ENB) {
-			if (a->flags & AF_HEARTBEAT) {
+		if (test_bit(AF_HEARTBEAT_ENB, &a->flags)) {
+			if (test_bit(AF_HEARTBEAT, &a->flags)) {
 				if ((currtime - a->heartbeat_time) >=
 				    ESAS2R_HEARTBEAT_TIME) {
-					esas2r_lock_clear_flags(&a->flags,
-								AF_HEARTBEAT);
+					clear_bit(AF_HEARTBEAT, &a->flags);
 					esas2r_hdebug("heartbeat failed");
 					esas2r_log(ESAS2R_LOG_CRIT,
 						   "heartbeat failed");
@@ -748,7 +744,7 @@ void esas2r_timer_tick(struct esas2r_adapter *a)
 					esas2r_local_reset_adapter(a);
 				}
 			} else {
-				esas2r_lock_set_flags(&a->flags, AF_HEARTBEAT);
+				set_bit(AF_HEARTBEAT, &a->flags);
 				a->heartbeat_time = currtime;
 				esas2r_force_interrupt(a);
 			}
@@ -812,7 +808,7 @@ bool esas2r_send_task_mgmt(struct esas2r_adapter *a,
 	rqaux->vrq->scsi.flags |=
 		cpu_to_le16(task_mgt_func * LOBIT(FCP_CMND_TM_MASK));
 
-	if (a->flags & AF_FLASHING) {
+	if (test_bit(AF_FLASHING, &a->flags)) {
 		/* Assume success.  if there are active requests, return busy */
 		rqaux->req_stat = RS_SUCCESS;
 
@@ -831,7 +827,7 @@ bool esas2r_send_task_mgmt(struct esas2r_adapter *a,
 
 	spin_unlock_irqrestore(&a->queue_lock, flags);
 
-	if (!(a->flags & AF_FLASHING))
+	if (!test_bit(AF_FLASHING, &a->flags))
 		esas2r_start_request(a, rqaux);
 
 	esas2r_comp_list_drain(a, &comp_list);
@@ -848,11 +844,12 @@ void esas2r_reset_bus(struct esas2r_adapter *a)
 {
 	esas2r_log(ESAS2R_LOG_INFO, "performing a bus reset");
 
-	if (!(a->flags & AF_DEGRADED_MODE)
-	    && !(a->flags & (AF_CHPRST_PENDING | AF_DISC_PENDING))) {
-		esas2r_lock_set_flags(&a->flags, AF_BUSRST_NEEDED);
-		esas2r_lock_set_flags(&a->flags, AF_BUSRST_PENDING);
-		esas2r_lock_set_flags(&a->flags, AF_OS_RESET);
+	if (!test_bit(AF_DEGRADED_MODE, &a->flags) &&
+	    !test_bit(AF_CHPRST_PENDING, &a->flags) &&
+	    !test_bit(AF_DISC_PENDING, &a->flags)) {
+		set_bit(AF_BUSRST_NEEDED, &a->flags);
+		set_bit(AF_BUSRST_PENDING, &a->flags);
+		set_bit(AF_OS_RESET, &a->flags);
 
 		esas2r_schedule_tasklet(a);
 	}
diff --git a/drivers/scsi/esas2r/esas2r_ioctl.c b/drivers/scsi/esas2r/esas2r_ioctl.c
index e5b09027e066..d89a0277a8e1 100644
--- a/drivers/scsi/esas2r/esas2r_ioctl.c
+++ b/drivers/scsi/esas2r/esas2r_ioctl.c
@@ -347,7 +347,7 @@ static bool csmi_ioctl_tunnel(struct esas2r_adapter *a,
 {
 	struct atto_vda_ioctl_req *ioctl = &rq->vrq->ioctl;
 
-	if (a->flags & AF_DEGRADED_MODE)
+	if (test_bit(AF_DEGRADED_MODE, &a->flags))
 		return false;
 
 	esas2r_sgc_init(sgc, a, rq, rq->vrq->ioctl.sge);
@@ -463,7 +463,7 @@ static int csmi_ioctl_callback(struct esas2r_adapter *a,
 		gcc->bios_minor_rev = LOBYTE(HIWORD(a->flash_ver));
 		gcc->bios_build_rev = LOWORD(a->flash_ver);
 
-		if (a->flags2 & AF2_THUNDERLINK)
+		if (test_bit(AF2_THUNDERLINK, &a->flags2))
 			gcc->cntlr_flags = CSMI_CNTLRF_SAS_HBA
 					   | CSMI_CNTLRF_SATA_HBA;
 		else
@@ -485,7 +485,7 @@ static int csmi_ioctl_callback(struct esas2r_adapter *a,
 	{
 		struct atto_csmi_get_cntlr_sts *gcs = &ioctl_csmi->cntlr_sts;
 
-		if (a->flags & AF_DEGRADED_MODE)
+		if (test_bit(AF_DEGRADED_MODE, &a->flags))
 			gcs->status = CSMI_CNTLR_STS_FAILED;
 		else
 			gcs->status = CSMI_CNTLR_STS_GOOD;
@@ -819,10 +819,10 @@ static int hba_ioctl_callback(struct esas2r_adapter *a,
 
 		gai->adap_type = ATTO_GAI_AT_ESASRAID2;
 
-		if (a->flags2 & AF2_THUNDERLINK)
+		if (test_bit(AF2_THUNDERLINK, &a->flags2))
 			gai->adap_type = ATTO_GAI_AT_TLSASHBA;
 
-		if (a->flags & AF_DEGRADED_MODE)
+		if (test_bit(AF_DEGRADED_MODE, &a->flags))
 			gai->adap_flags |= ATTO_GAI_AF_DEGRADED;
 
 		gai->adap_flags |= ATTO_GAI_AF_SPT_SUPP |
@@ -938,7 +938,7 @@ static int hba_ioctl_callback(struct esas2r_adapter *a,
 				u32 total_len = ESAS2R_FWCOREDUMP_SZ;
 
 				/* Size is zero if a core dump isn't present */
-				if (!(a->flags2 & AF2_COREDUMP_SAVED))
+				if (!test_bit(AF2_COREDUMP_SAVED, &a->flags2))
 					total_len = 0;
 
 				if (len > total_len)
@@ -960,8 +960,7 @@ static int hba_ioctl_callback(struct esas2r_adapter *a,
 				memset(a->fw_coredump_buff, 0,
 				       ESAS2R_FWCOREDUMP_SZ);
 
-				esas2r_lock_clear_flags(&a->flags2,
-							AF2_COREDUMP_SAVED);
+				clear_bit(AF2_COREDUMP_SAVED, &a->flags2);
 			} else if (trc->trace_func != ATTO_TRC_TF_GET_INFO) {
 				hi->status = ATTO_STS_UNSUPPORTED;
 				break;
@@ -973,7 +972,7 @@ static int hba_ioctl_callback(struct esas2r_adapter *a,
 			trc->total_length = ESAS2R_FWCOREDUMP_SZ;
 
 			/* Return zero length buffer if core dump not present */
-			if (!(a->flags2 & AF2_COREDUMP_SAVED))
+			if (!test_bit(AF2_COREDUMP_SAVED, &a->flags2))
 				trc->total_length = 0;
 		} else {
 			hi->status = ATTO_STS_UNSUPPORTED;
@@ -1048,6 +1047,7 @@ static int hba_ioctl_callback(struct esas2r_adapter *a,
 		else if (spt->flags & ATTO_SPTF_HEAD_OF_Q)
 			rq->vrq->scsi.flags |= cpu_to_le32(FCP_CMND_TA_HEAD_Q);
 
+
 		if (!esas2r_build_sg_list(a, rq, sgc)) {
 			hi->status = ATTO_STS_OUT_OF_RSRC;
 			break;
@@ -1139,15 +1139,15 @@ static int hba_ioctl_callback(struct esas2r_adapter *a,
 			break;
 		}
 
-		if (a->flags & AF_CHPRST_NEEDED)
+		if (test_bit(AF_CHPRST_NEEDED, &a->flags))
 			ac->adap_state = ATTO_AC_AS_RST_SCHED;
-		else if (a->flags & AF_CHPRST_PENDING)
+		else if (test_bit(AF_CHPRST_PENDING, &a->flags))
 			ac->adap_state = ATTO_AC_AS_RST_IN_PROG;
-		else if (a->flags & AF_DISC_PENDING)
+		else if (test_bit(AF_DISC_PENDING, &a->flags))
 			ac->adap_state = ATTO_AC_AS_RST_DISC;
-		else if (a->flags & AF_DISABLED)
+		else if (test_bit(AF_DISABLED, &a->flags))
 			ac->adap_state = ATTO_AC_AS_DISABLED;
-		else if (a->flags & AF_DEGRADED_MODE)
+		else if (test_bit(AF_DEGRADED_MODE, &a->flags))
 			ac->adap_state = ATTO_AC_AS_DEGRADED;
 		else
 			ac->adap_state = ATTO_AC_AS_OK;
diff --git a/drivers/scsi/esas2r/esas2r_main.c b/drivers/scsi/esas2r/esas2r_main.c
index 4abf1272e1eb..f37f3e3dd5d5 100644
--- a/drivers/scsi/esas2r/esas2r_main.c
+++ b/drivers/scsi/esas2r/esas2r_main.c
@@ -889,7 +889,7 @@ int esas2r_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd)
 	/* Assume success, if it fails we will fix the result later. */
 	cmd->result = DID_OK << 16;
 
-	if (unlikely(a->flags & AF_DEGRADED_MODE)) {
+	if (unlikely(test_bit(AF_DEGRADED_MODE, &a->flags))) {
 		cmd->result = DID_NO_CONNECT << 16;
 		cmd->scsi_done(cmd);
 		return 0;
@@ -1050,7 +1050,7 @@ int esas2r_eh_abort(struct scsi_cmnd *cmd)
 
 	esas2r_log(ESAS2R_LOG_INFO, "eh_abort (%p)", cmd);
 
-	if (a->flags & AF_DEGRADED_MODE) {
+	if (test_bit(AF_DEGRADED_MODE, &a->flags)) {
 		cmd->result = DID_ABORT << 16;
 
 		scsi_set_resid(cmd, 0);
@@ -1131,7 +1131,7 @@ static int esas2r_host_bus_reset(struct scsi_cmnd *cmd, bool host_reset)
 	struct esas2r_adapter *a =
 		(struct esas2r_adapter *)cmd->device->host->hostdata;
 
-	if (a->flags & AF_DEGRADED_MODE)
+	if (test_bit(AF_DEGRADED_MODE, &a->flags))
 		return FAILED;
 
 	if (host_reset)
@@ -1141,14 +1141,14 @@ static int esas2r_host_bus_reset(struct scsi_cmnd *cmd, bool host_reset)
 
 	/* above call sets the AF_OS_RESET flag.  wait for it to clear. */
 
-	while (a->flags & AF_OS_RESET) {
+	while (test_bit(AF_OS_RESET, &a->flags)) {
 		msleep(10);
 
-		if (a->flags & AF_DEGRADED_MODE)
+		if (test_bit(AF_DEGRADED_MODE, &a->flags))
 			return FAILED;
 	}
 
-	if (a->flags & AF_DEGRADED_MODE)
+	if (test_bit(AF_DEGRADED_MODE, &a->flags))
 		return FAILED;
 
 	return SUCCESS;
@@ -1176,7 +1176,7 @@ static int esas2r_dev_targ_reset(struct scsi_cmnd *cmd, bool target_reset)
 	u8 task_management_status = RS_PENDING;
 	bool completed;
 
-	if (a->flags & AF_DEGRADED_MODE)
+	if (test_bit(AF_DEGRADED_MODE, &a->flags))
 		return FAILED;
 
 retry:
@@ -1229,7 +1229,7 @@ retry:
 			msleep(10);
 	}
 
-	if (a->flags & AF_DEGRADED_MODE)
+	if (test_bit(AF_DEGRADED_MODE, &a->flags))
 		return FAILED;
 
 	if (task_management_status == RS_BUSY) {
@@ -1666,13 +1666,13 @@ void esas2r_adapter_tasklet(unsigned long context)
 {
 	struct esas2r_adapter *a = (struct esas2r_adapter *)context;
 
-	if (unlikely(a->flags2 & AF2_TIMER_TICK)) {
-		esas2r_lock_clear_flags(&a->flags2, AF2_TIMER_TICK);
+	if (unlikely(test_bit(AF2_TIMER_TICK, &a->flags2))) {
+		clear_bit(AF2_TIMER_TICK, &a->flags2);
 		esas2r_timer_tick(a);
 	}
 
-	if (likely(a->flags2 & AF2_INT_PENDING)) {
-		esas2r_lock_clear_flags(&a->flags2, AF2_INT_PENDING);
+	if (likely(test_bit(AF2_INT_PENDING, &a->flags2))) {
+		clear_bit(AF2_INT_PENDING, &a->flags2);
 		esas2r_adapter_interrupt(a);
 	}
 
@@ -1680,12 +1680,12 @@ void esas2r_adapter_tasklet(unsigned long context)
 		esas2r_do_tasklet_tasks(a);
 
 	if (esas2r_is_tasklet_pending(a)
-	    || (a->flags2 & AF2_INT_PENDING)
-	    || (a->flags2 & AF2_TIMER_TICK)) {
-		esas2r_lock_clear_flags(&a->flags, AF_TASKLET_SCHEDULED);
+	    || (test_bit(AF2_INT_PENDING, &a->flags2))
+	    || (test_bit(AF2_TIMER_TICK, &a->flags2))) {
+		clear_bit(AF_TASKLET_SCHEDULED, &a->flags);
 		esas2r_schedule_tasklet(a);
 	} else {
-		esas2r_lock_clear_flags(&a->flags, AF_TASKLET_SCHEDULED);
+		clear_bit(AF_TASKLET_SCHEDULED, &a->flags);
 	}
 }
 
@@ -1707,7 +1707,7 @@ static void esas2r_timer_callback(unsigned long context)
 {
 	struct esas2r_adapter *a = (struct esas2r_adapter *)context;
 
-	esas2r_lock_set_flags(&a->flags2, AF2_TIMER_TICK);
+	set_bit(AF2_TIMER_TICK, &a->flags2);
 
 	esas2r_schedule_tasklet(a);
 
diff --git a/drivers/scsi/esas2r/esas2r_targdb.c b/drivers/scsi/esas2r/esas2r_targdb.c
index e540a2fa3d15..bf45beaad439 100644
--- a/drivers/scsi/esas2r/esas2r_targdb.c
+++ b/drivers/scsi/esas2r/esas2r_targdb.c
@@ -86,7 +86,7 @@ void esas2r_targ_db_report_changes(struct esas2r_adapter *a)
 
 	esas2r_trace_enter();
 
-	if (a->flags & AF_DISC_PENDING) {
+	if (test_bit(AF_DISC_PENDING, &a->flags)) {
 		esas2r_trace_exit();
 		return;
 	}
diff --git a/drivers/scsi/esas2r/esas2r_vda.c b/drivers/scsi/esas2r/esas2r_vda.c
index fd1392879647..27e97215bb2f 100644
--- a/drivers/scsi/esas2r/esas2r_vda.c
+++ b/drivers/scsi/esas2r/esas2r_vda.c
@@ -84,7 +84,7 @@ bool esas2r_process_vda_ioctl(struct esas2r_adapter *a,
 		return false;
 	}
 
-	if (a->flags & AF_DEGRADED_MODE) {
+	if (test_bit(AF_DEGRADED_MODE, &a->flags)) {
 		vi->status = ATTO_STS_DEGRADED;
 		return false;
 	}
@@ -389,7 +389,7 @@ void esas2r_build_mgt_req(struct esas2r_adapter *a,
 	vrq->length = cpu_to_le32(length);
 
 	if (vrq->length) {
-		if (a->flags & AF_LEGACY_SGE_MODE) {
+		if (test_bit(AF_LEGACY_SGE_MODE, &a->flags)) {
 			vrq->sg_list_offset = (u8)offsetof(
 				struct atto_vda_mgmt_req, sge);
 
@@ -427,7 +427,7 @@ void esas2r_build_ae_req(struct esas2r_adapter *a, struct esas2r_request *rq)
 
 	vrq->length = cpu_to_le32(sizeof(struct atto_vda_ae_data));
 
-	if (a->flags & AF_LEGACY_SGE_MODE) {
+	if (test_bit(AF_LEGACY_SGE_MODE, &a->flags)) {
 		vrq->sg_list_offset =
 			(u8)offsetof(struct atto_vda_ae_req, sge);
 		vrq->sge[0].length = cpu_to_le32(SGE_LAST | vrq->length);
-- 
cgit 


From 8e65e2f07c1fdbd952570591bf78316aeed1c74a Mon Sep 17 00:00:00 2001
From: Bradley Grove <bgrove@attotech.com>
Date: Tue, 1 Oct 2013 14:26:02 -0400
Subject: [SCSI] esas2r: Fixes for big-endian platforms

In esas2r_format_init_msg(), sgl_page_size and epoch_time params
are converted to little endian and the firmware version read from
the hba is converted to cpu endianess.

In esas2r_rq_init_request, correct and simplify the construction
of the SCSI handle.

These fixes are the result of testing on a PPC64 machine.

Signed-off-by: Bradley Grove <bgrove@attotech.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/esas2r/esas2r.h      |  7 ++-----
 drivers/scsi/esas2r/esas2r_init.c | 11 +++++++----
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/scsi/esas2r/esas2r.h b/drivers/scsi/esas2r/esas2r.h
index d128c96a501d..3fd305d6b67d 100644
--- a/drivers/scsi/esas2r/esas2r.h
+++ b/drivers/scsi/esas2r/esas2r.h
@@ -1207,7 +1207,6 @@ static inline void esas2r_rq_init_request(struct esas2r_request *rq,
 					  struct esas2r_adapter *a)
 {
 	union atto_vda_req *vrq = rq->vrq;
-	u32 handle;
 
 	INIT_LIST_HEAD(&rq->sg_table_head);
 	rq->data_buf = (void *)(vrq + 1);
@@ -1243,11 +1242,9 @@ static inline void esas2r_rq_init_request(struct esas2r_request *rq,
 
 	/*
 	 * add a reference number to the handle to make it unique (until it
-	 * wraps of course) while preserving the upper word
+	 * wraps of course) while preserving the least significant word
 	 */
-
-	handle = be32_to_cpu(vrq->scsi.handle) & 0xFFFF0000;
-	vrq->scsi.handle = cpu_to_be32(handle + a->cmd_ref_no++);
+	vrq->scsi.handle = (a->cmd_ref_no++ << 16) | (u16)vrq->scsi.handle;
 
 	/*
 	 * the following formats a SCSI request.  the caller can override as
diff --git a/drivers/scsi/esas2r/esas2r_init.c b/drivers/scsi/esas2r/esas2r_init.c
index 15d222b407f6..8278819669e3 100644
--- a/drivers/scsi/esas2r/esas2r_init.c
+++ b/drivers/scsi/esas2r/esas2r_init.c
@@ -1235,8 +1235,8 @@ static bool esas2r_format_init_msg(struct esas2r_adapter *a,
 				     0,
 				     NULL);
 		ci = (struct atto_vda_cfg_init *)&rq->vrq->cfg.data.init;
-		ci->sgl_page_size = sgl_page_size;
-		ci->epoch_time = now.tv_sec;
+		ci->sgl_page_size = cpu_to_le32(sgl_page_size);
+		ci->epoch_time = cpu_to_le32(now.tv_sec);
 		rq->flags |= RF_FAILURE_OK;
 		a->init_msg = ESAS2R_INIT_MSG_INIT;
 		break;
@@ -1246,12 +1246,15 @@ static bool esas2r_format_init_msg(struct esas2r_adapter *a,
 		if (rq->req_stat == RS_SUCCESS) {
 			u32 major;
 			u32 minor;
+			u16 fw_release;
 
 			a->fw_version = le16_to_cpu(
 				rq->func_rsp.cfg_rsp.vda_version);
 			a->fw_build = rq->func_rsp.cfg_rsp.fw_build;
-			major = LOBYTE(rq->func_rsp.cfg_rsp.fw_release);
-			minor = HIBYTE(rq->func_rsp.cfg_rsp.fw_release);
+			fw_release = le16_to_cpu(
+				rq->func_rsp.cfg_rsp.fw_release);
+			major = LOBYTE(fw_release);
+			minor = HIBYTE(fw_release);
 			a->fw_version += (major << 16) + (minor << 24);
 		} else {
 			esas2r_hdebug("FAILED");
-- 
cgit 


From b1cf7a2bc7c372c856cdf542c41d7fe527e4b5d6 Mon Sep 17 00:00:00 2001
From: Bradley Grove <bgrove@attotech.com>
Date: Tue, 1 Oct 2013 14:26:03 -0400
Subject: [SCSI] esas2r: Remove superfluous mask of pcie_cap_reg

Signed-off-by: Bradley Grove <bgrove@attotech.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/esas2r/esas2r_init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/esas2r/esas2r_init.c b/drivers/scsi/esas2r/esas2r_init.c
index 8278819669e3..b9750e296d71 100644
--- a/drivers/scsi/esas2r/esas2r_init.c
+++ b/drivers/scsi/esas2r/esas2r_init.c
@@ -807,7 +807,7 @@ static void esas2r_init_pci_cfg_space(struct esas2r_adapter *a)
 	int pcie_cap_reg;
 
 	pcie_cap_reg = pci_find_capability(a->pcid, PCI_CAP_ID_EXP);
-	if (0xffff & pcie_cap_reg) {
+	if (pcie_cap_reg) {
 		u16 devcontrol;
 
 		pci_read_config_word(a->pcid, pcie_cap_reg + PCI_EXP_DEVCTL,
-- 
cgit 


From 0f3c7b99f33f7a9c743a752bba2414615c48e270 Mon Sep 17 00:00:00 2001
From: Bradley Grove <bgrove@attotech.com>
Date: Tue, 1 Oct 2013 14:26:04 -0400
Subject: [SCSI] esas2r: Cleanup snprinf formatting of firmware version

Signed-off-by: Bradley Grove <bgrove@attotech.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/esas2r/esas2r_vda.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/esas2r/esas2r_vda.c b/drivers/scsi/esas2r/esas2r_vda.c
index 27e97215bb2f..30028e56df63 100644
--- a/drivers/scsi/esas2r/esas2r_vda.c
+++ b/drivers/scsi/esas2r/esas2r_vda.c
@@ -310,9 +310,9 @@ static void esas2r_complete_vda_ioctl(struct esas2r_adapter *a,
 				le32_to_cpu(rsp->vda_version);
 			cfg->data.init.fw_build = rsp->fw_build;
 
-			snprintf(buf, sizeof(buf), "%1d.%02d",
-				(int)LOBYTE(le16_to_cpu(rsp->fw_release)),
-				(int)HIBYTE(le16_to_cpu(rsp->fw_release)));
+			snprintf(buf, sizeof(buf), "%1.1u.%2.2u",
+				 (int)LOBYTE(le16_to_cpu(rsp->fw_release)),
+				 (int)HIBYTE(le16_to_cpu(rsp->fw_release)));
 
 			memcpy(&cfg->data.init.fw_release, buf,
 			       sizeof(cfg->data.init.fw_release));
-- 
cgit 


From 29ca9c73e54131c9ad90c5381f368d9b09b5aca4 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 25 Oct 2013 17:06:24 +0800
Subject: ASoC: samsung: fix return value check in i2s_alloc_dai()

In case of error, the function platform_device_alloc() returns NULL
pointer not ERR_PTR(). The IS_ERR() test in the return value check
should be replaced with NULL test.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/samsung/i2s.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c
index 32956df8f50c..2e031fa729f0 100644
--- a/sound/soc/samsung/i2s.c
+++ b/sound/soc/samsung/i2s.c
@@ -1073,7 +1073,7 @@ static struct i2s_dai *i2s_alloc_dai(struct platform_device *pdev, bool sec)
 		dev_set_drvdata(&i2s->pdev->dev, i2s);
 	} else {	/* Create a new platform_device for Secondary */
 		i2s->pdev = platform_device_alloc("samsung-i2s-sec", -1);
-		if (IS_ERR(i2s->pdev))
+		if (!i2s->pdev)
 			return NULL;
 
 		i2s->pdev->dev.parent = &pdev->dev;
-- 
cgit 


From f1a4914bd04911fbeaee23445112adae8977144a Mon Sep 17 00:00:00 2001
From: "Anders F. U. Kiær" <ablacksheep@gmail.com>
Date: Mon, 21 Oct 2013 23:42:22 +0200
Subject: HID: add support for LEETGION Hellion Gaming Mouse
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Added id, bindings and comments for Holtek USB ID 04d9:a072
LEETGION Hellion Gaming mouse to use the same corrections of the report
descriptor as Holtek 04d9:a067. As the mouse exceed HID_MAX_USAGES at the
same offsets in the reported descriptor.
Tested on the hardware.

Signed-off-by: Anders F. U. Kiær <ablacksheep@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/Kconfig            | 1 +
 drivers/hid/hid-core.c         | 1 +
 drivers/hid/hid-holtek-mouse.c | 4 ++++
 drivers/hid/hid-ids.h          | 3 ++-
 4 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index c91d547191dd..d68292a50df5 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -242,6 +242,7 @@ config HID_HOLTEK
 	  - Tracer Sniper TRM-503 / NOVA Gaming Slider X200 /
 	    Zalman ZM-GM1
 	  - SHARKOON DarkGlider Gaming mouse
+	  - LEETGION Hellion Gaming Mouse
 
 config HOLTEK_FF
 	bool "Holtek On Line Grip force feedback support"
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index e80da62363bc..e8353f331792 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1716,6 +1716,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_580) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) },
diff --git a/drivers/hid/hid-holtek-mouse.c b/drivers/hid/hid-holtek-mouse.c
index e696566cde46..0caa676de622 100644
--- a/drivers/hid/hid-holtek-mouse.c
+++ b/drivers/hid/hid-holtek-mouse.c
@@ -28,6 +28,7 @@
  * - USB ID 04d9:a04a, sold as Tracer Sniper TRM-503, NOVA Gaming Slider X200
  *   and Zalman ZM-GM1
  * - USB ID 04d9:a081, sold as SHARKOON DarkGlider Gaming mouse
+ * - USB ID 04d9:a072, sold as LEETGION Hellion Gaming Mouse
  */
 
 static __u8 *holtek_mouse_report_fixup(struct hid_device *hdev, __u8 *rdesc,
@@ -40,6 +41,7 @@ static __u8 *holtek_mouse_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 		 * 0x2fff, so they don't exceed HID_MAX_USAGES */
 		switch (hdev->product) {
 		case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067:
+		case USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072:
 			if (*rsize >= 122 && rdesc[115] == 0xff && rdesc[116] == 0x7f
 					&& rdesc[120] == 0xff && rdesc[121] == 0x7f) {
 				hid_info(hdev, "Fixing up report descriptor\n");
@@ -65,6 +67,8 @@ static const struct hid_device_id holtek_mouse_devices[] = {
 			USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
 			USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
+			USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT,
 			USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },
 	{ }
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index f0296a50be5f..bdebab4e345b 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -448,8 +448,9 @@
 
 #define USB_VENDOR_ID_HOLTEK_ALT		0x04d9
 #define USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD	0xa055
-#define USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067	0xa067
 #define USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A	0xa04a
+#define USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067	0xa067
+#define USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072	0xa072
 #define USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081	0xa081
 
 #define USB_VENDOR_ID_IMATION		0x0718
-- 
cgit 


From c20ee7b56e0a1937b41919813e5a98373ca48ae8 Mon Sep 17 00:00:00 2001
From: "Stewart, Sean" <Sean.Stewart@netapp.com>
Date: Tue, 15 Oct 2013 15:52:39 +0000
Subject: [SCSI] scsi_dh_alua: ALUA check sense should retry device internal
 reset unit attention

When the scsi_dh_alua handler issues an RTPG during initialization, if it gets
0x06/0x29/0x04 as the sense, it will fail to attach the handler.  NetApp
E-Series returns 0x29/0x00 for power on, and 0x29/0x04 for conditions that
cause the controller to reboot again.  These conditions should be treated
identically within the handler.

Signed-off-by: Sean Stewart <Sean.Stewart@netapp.com>
Acked-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/device_handler/scsi_dh_alua.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 68adb8955d2d..78205cc2059c 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -481,6 +481,11 @@ static int alua_check_sense(struct scsi_device *sdev,
 			 * Power On, Reset, or Bus Device Reset, just retry.
 			 */
 			return ADD_TO_MLQUEUE;
+		if (sense_hdr->asc == 0x29 && sense_hdr->ascq == 0x04)
+			/*
+			 * Device internal reset
+			 */
+			return ADD_TO_MLQUEUE;
 		if (sense_hdr->asc == 0x2a && sense_hdr->ascq == 0x01)
 			/*
 			 * Mode Parameters Changed
-- 
cgit 


From a8e5a2d593cbfccf530c3382c2c328d2edaa7b66 Mon Sep 17 00:00:00 2001
From: "Stewart, Sean" <Sean.Stewart@netapp.com>
Date: Tue, 15 Oct 2013 15:52:54 +0000
Subject: [SCSI] scsi_dh_alua: ALUA handler attach should succeed while TPG is
 transitioning

During testing, it was discovered that when a device tries to attach to the
alua handler while in TPG state of transitioning, the alua_rtpg function will
wait for it to exit the state before allowing it to continue. As a result, if
the 60 second timeout expires, the alua handler will not attach to the device.

To fix this, I have introduced an input argument to alua_rtpg called
wait_for_transition.  The idea is that it will wait for the transition to
complete before an activation (because the current TPG state has some bearing
in that case), but during a discovery if it is transitioning, it will not
wait, and will store the state as standby for the time being.

I believe the precedent exists for this from commit
c0d289b3e59577532c45ee9110ef81bd7b341272 Since if the device reports a state
of transitioning, it can transition to other more valid states, and it has
been established TPGS is supported on the device, if it is attaching.

Signed-off-by: Sean Stewart <Sean.Stewart@netapp.com>
Acked-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/device_handler/scsi_dh_alua.c | 26 ++++++++++++++++----------
 1 file changed, 16 insertions(+), 10 deletions(-)

diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c
index 78205cc2059c..5248c888552b 100644
--- a/drivers/scsi/device_handler/scsi_dh_alua.c
+++ b/drivers/scsi/device_handler/scsi_dh_alua.c
@@ -522,12 +522,13 @@ static int alua_check_sense(struct scsi_device *sdev,
 /*
  * alua_rtpg - Evaluate REPORT TARGET GROUP STATES
  * @sdev: the device to be evaluated.
+ * @wait_for_transition: if nonzero, wait ALUA_FAILOVER_TIMEOUT seconds for device to exit transitioning state
  *
  * Evaluate the Target Port Group State.
  * Returns SCSI_DH_DEV_OFFLINED if the path is
  * found to be unusable.
  */
-static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h)
+static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h, int wait_for_transition)
 {
 	struct scsi_sense_hdr sense_hdr;
 	int len, k, off, valid_states = 0;
@@ -599,7 +600,7 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h)
 	else
 		h->transition_tmo = ALUA_FAILOVER_TIMEOUT;
 
-	if (orig_transition_tmo != h->transition_tmo) {
+	if (wait_for_transition && (orig_transition_tmo != h->transition_tmo)) {
 		sdev_printk(KERN_INFO, sdev,
 			    "%s: transition timeout set to %d seconds\n",
 			    ALUA_DH_NAME, h->transition_tmo);
@@ -637,14 +638,19 @@ static int alua_rtpg(struct scsi_device *sdev, struct alua_dh_data *h)
 
 	switch (h->state) {
 	case TPGS_STATE_TRANSITIONING:
-		if (time_before(jiffies, expiry)) {
-			/* State transition, retry */
-			interval += 2000;
-			msleep(interval);
-			goto retry;
+		if (wait_for_transition) {
+			if (time_before(jiffies, expiry)) {
+				/* State transition, retry */
+				interval += 2000;
+				msleep(interval);
+				goto retry;
+			}
+			err = SCSI_DH_RETRY;
+		} else {
+			err = SCSI_DH_OK;
 		}
+
 		/* Transitioning time exceeded, set port to standby */
-		err = SCSI_DH_RETRY;
 		h->state = TPGS_STATE_STANDBY;
 		break;
 	case TPGS_STATE_OFFLINE:
@@ -678,7 +684,7 @@ static int alua_initialize(struct scsi_device *sdev, struct alua_dh_data *h)
 	if (err != SCSI_DH_OK)
 		goto out;
 
-	err = alua_rtpg(sdev, h);
+	err = alua_rtpg(sdev, h, 0);
 	if (err != SCSI_DH_OK)
 		goto out;
 
@@ -738,7 +744,7 @@ static int alua_activate(struct scsi_device *sdev,
 	int err = SCSI_DH_OK;
 	int stpg = 0;
 
-	err = alua_rtpg(sdev, h);
+	err = alua_rtpg(sdev, h, 1);
 	if (err != SCSI_DH_OK)
 		goto out;
 
-- 
cgit 


From 1109c94444504bff8b7463879e598fb320bf77c0 Mon Sep 17 00:00:00 2001
From: Felipe Pena <felipensp@gmail.com>
Date: Tue, 15 Oct 2013 21:29:50 -0300
Subject: [SCSI] lpfc: Fix typo on NULL assignment

In the lpfc_ct_free_iocb function after freeing associated memory to the
ctiocb->context3, the ctiocb->context1 is set to NULL instead of context3.

Signed-off-by: Felipe Pena <felipensp@gmail.com>
Acked-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/lpfc/lpfc_ct.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c
index 02e8cd923d0a..da61d8dc0449 100644
--- a/drivers/scsi/lpfc/lpfc_ct.c
+++ b/drivers/scsi/lpfc/lpfc_ct.c
@@ -280,7 +280,7 @@ lpfc_ct_free_iocb(struct lpfc_hba *phba, struct lpfc_iocbq *ctiocb)
 		buf_ptr = (struct lpfc_dmabuf *) ctiocb->context3;
 		lpfc_mbuf_free(phba, buf_ptr->virt, buf_ptr->phys);
 		kfree(buf_ptr);
-		ctiocb->context1 = NULL;
+		ctiocb->context3 = NULL;
 	}
 	lpfc_sli_release_iocbq(phba, ctiocb);
 	return 0;
-- 
cgit 


From 999ece0af91cdf15e7e0687567914721b4499860 Mon Sep 17 00:00:00 2001
From: "Sumit.Saxena@lsi.com" <Sumit.Saxena@lsi.com>
Date: Fri, 18 Oct 2013 12:50:37 +0530
Subject: [SCSI] megaraid_sas: Fix synchronization problem between sysPD IO
 path and AEN path

There is syncronization problem between sysPD IO path and AEN path. Driver
maintains instance->pd_list[] array, which will get updated(by calling
function megasas_get_pd_list[]), whenever any of below events occurs-

MR_EVT_PD_INSERTED
MR_EVT_PD_REMOVED
MR_EVT_CTRL_HOST_BUS_SCAN_REQUESTED
MR_EVT_FOREIGN_CFG_IMPORTED

At same time running sysPD IO will be accessing the same array
instance->pd_list[], which is getting updated in AEN path, because of this IO
may not get correct PD info from instance->pd_list[] array.

Signed-off-by: Adam Radford <adam.radford@lsi.com>
Signed-off-by: Sumit Saxena <sumit.saxena@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/megaraid/megaraid_sas.h      |  1 +
 drivers/scsi/megaraid/megaraid_sas_base.c | 10 ++++++----
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/megaraid/megaraid_sas.h b/drivers/scsi/megaraid/megaraid_sas.h
index 0c73ba4bf451..e9e543c58485 100644
--- a/drivers/scsi/megaraid/megaraid_sas.h
+++ b/drivers/scsi/megaraid/megaraid_sas.h
@@ -1531,6 +1531,7 @@ struct megasas_instance {
 	struct megasas_register_set __iomem *reg_set;
 	u32 *reply_post_host_index_addr[MR_MAX_MSIX_REG_ARRAY];
 	struct megasas_pd_list          pd_list[MEGASAS_MAX_PD];
+	struct megasas_pd_list          local_pd_list[MEGASAS_MAX_PD];
 	u8     ld_ids[MEGASAS_MAX_LD_IDS];
 	s8 init_id;
 
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index e62ff020c253..2cf9470dd11b 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -3194,19 +3194,21 @@ megasas_get_pd_list(struct megasas_instance *instance)
 	     (le32_to_cpu(ci->count) <
 		  (MEGASAS_MAX_PD_CHANNELS * MEGASAS_MAX_DEV_PER_CHANNEL))) {
 
-		memset(instance->pd_list, 0,
+		memset(instance->local_pd_list, 0,
 			MEGASAS_MAX_PD * sizeof(struct megasas_pd_list));
 
 		for (pd_index = 0; pd_index < le32_to_cpu(ci->count); pd_index++) {
 
-			instance->pd_list[le16_to_cpu(pd_addr->deviceId)].tid	=
+			instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].tid	=
 				le16_to_cpu(pd_addr->deviceId);
-			instance->pd_list[le16_to_cpu(pd_addr->deviceId)].driveType	=
+			instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveType	=
 							pd_addr->scsiDevType;
-			instance->pd_list[le16_to_cpu(pd_addr->deviceId)].driveState	=
+			instance->local_pd_list[le16_to_cpu(pd_addr->deviceId)].driveState	=
 							MR_PD_STATE_SYSTEM;
 			pd_addr++;
 		}
+		memcpy(instance->pd_list, instance->local_pd_list,
+			sizeof(instance->pd_list));
 	}
 
 	pci_free_consistent(instance->pdev,
-- 
cgit 


From 00ef54bb97389bfe8894272f48496f4191aae946 Mon Sep 17 00:00:00 2001
From: Mark Rutland <mark.rutland@arm.com>
Date: Thu, 24 Oct 2013 20:30:14 +0100
Subject: arm64: unify smp_psci.c and psci.c

The functions in psci.c are only used from smp_psci.c, and smp_psci
cannot function without psci.c. Additionally psci.c is built when !SMP,
where it's expected that cpu_suspend may be useful.

This patch unifies the two files, removing pointless duplication and
paving the way for PSCI support in UP systems.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/include/asm/psci.h | 19 ---------------
 arch/arm64/kernel/Makefile    |  2 +-
 arch/arm64/kernel/psci.c      | 54 ++++++++++++++++++++++++++++++++++++++++++-
 arch/arm64/kernel/smp_psci.c  | 53 ------------------------------------------
 4 files changed, 54 insertions(+), 74 deletions(-)
 delete mode 100644 arch/arm64/kernel/smp_psci.c

diff --git a/arch/arm64/include/asm/psci.h b/arch/arm64/include/asm/psci.h
index 0604237ecd99..e5312ea0ec1a 100644
--- a/arch/arm64/include/asm/psci.h
+++ b/arch/arm64/include/asm/psci.h
@@ -14,25 +14,6 @@
 #ifndef __ASM_PSCI_H
 #define __ASM_PSCI_H
 
-#define PSCI_POWER_STATE_TYPE_STANDBY		0
-#define PSCI_POWER_STATE_TYPE_POWER_DOWN	1
-
-struct psci_power_state {
-	u16	id;
-	u8	type;
-	u8	affinity_level;
-};
-
-struct psci_operations {
-	int (*cpu_suspend)(struct psci_power_state state,
-			   unsigned long entry_point);
-	int (*cpu_off)(struct psci_power_state state);
-	int (*cpu_on)(unsigned long cpuid, unsigned long entry_point);
-	int (*migrate)(unsigned long cpuid);
-};
-
-extern struct psci_operations psci_ops;
-
 int psci_init(void);
 
 #endif /* __ASM_PSCI_H */
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index 7b4b564961d4..75a90c15b30b 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -14,7 +14,7 @@ arm64-obj-y		:= cputable.o debug-monitors.o entry.o irq.o fpsimd.o	\
 arm64-obj-$(CONFIG_COMPAT)		+= sys32.o kuser32.o signal32.o 	\
 					   sys_compat.o
 arm64-obj-$(CONFIG_MODULES)		+= arm64ksyms.o module.o
-arm64-obj-$(CONFIG_SMP)			+= smp.o smp_spin_table.o smp_psci.o
+arm64-obj-$(CONFIG_SMP)			+= smp.o smp_spin_table.o
 arm64-obj-$(CONFIG_HW_PERF_EVENTS)	+= perf_event.o
 arm64-obj-$(CONFIG_HAVE_HW_BREAKPOINT)+= hw_breakpoint.o
 arm64-obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
diff --git a/arch/arm64/kernel/psci.c b/arch/arm64/kernel/psci.c
index 14f73c445ff5..368b78788cb5 100644
--- a/arch/arm64/kernel/psci.c
+++ b/arch/arm64/kernel/psci.c
@@ -17,12 +17,31 @@
 
 #include <linux/init.h>
 #include <linux/of.h>
+#include <linux/smp.h>
 
 #include <asm/compiler.h>
 #include <asm/errno.h>
 #include <asm/psci.h>
+#include <asm/smp_plat.h>
 
-struct psci_operations psci_ops;
+#define PSCI_POWER_STATE_TYPE_STANDBY		0
+#define PSCI_POWER_STATE_TYPE_POWER_DOWN	1
+
+struct psci_power_state {
+	u16	id;
+	u8	type;
+	u8	affinity_level;
+};
+
+struct psci_operations {
+	int (*cpu_suspend)(struct psci_power_state state,
+			   unsigned long entry_point);
+	int (*cpu_off)(struct psci_power_state state);
+	int (*cpu_on)(unsigned long cpuid, unsigned long entry_point);
+	int (*migrate)(unsigned long cpuid);
+};
+
+static struct psci_operations psci_ops;
 
 static int (*invoke_psci_fn)(u64, u64, u64, u64);
 
@@ -209,3 +228,36 @@ out_put_node:
 	of_node_put(np);
 	return err;
 }
+
+#ifdef CONFIG_SMP
+
+static int __init smp_psci_init_cpu(struct device_node *dn, int cpu)
+{
+	return 0;
+}
+
+static int __init smp_psci_prepare_cpu(int cpu)
+{
+	int err;
+
+	if (!psci_ops.cpu_on) {
+		pr_err("no cpu_on method, not booting CPU%d\n", cpu);
+		return -ENODEV;
+	}
+
+	err = psci_ops.cpu_on(cpu_logical_map(cpu), __pa(secondary_holding_pen));
+	if (err) {
+		pr_err("failed to boot CPU%d (%d)\n", cpu, err);
+		return err;
+	}
+
+	return 0;
+}
+
+const struct smp_enable_ops smp_psci_ops __initconst = {
+	.name		= "psci",
+	.init_cpu	= smp_psci_init_cpu,
+	.prepare_cpu	= smp_psci_prepare_cpu,
+};
+
+#endif
diff --git a/arch/arm64/kernel/smp_psci.c b/arch/arm64/kernel/smp_psci.c
deleted file mode 100644
index 0c533301be77..000000000000
--- a/arch/arm64/kernel/smp_psci.c
+++ /dev/null
@@ -1,53 +0,0 @@
-/*
- * PSCI SMP initialisation
- *
- * Copyright (C) 2013 ARM Ltd.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <linux/init.h>
-#include <linux/of.h>
-#include <linux/smp.h>
-
-#include <asm/psci.h>
-#include <asm/smp_plat.h>
-
-static int __init smp_psci_init_cpu(struct device_node *dn, int cpu)
-{
-	return 0;
-}
-
-static int __init smp_psci_prepare_cpu(int cpu)
-{
-	int err;
-
-	if (!psci_ops.cpu_on) {
-		pr_err("psci: no cpu_on method, not booting CPU%d\n", cpu);
-		return -ENODEV;
-	}
-
-	err = psci_ops.cpu_on(cpu_logical_map(cpu), __pa(secondary_holding_pen));
-	if (err) {
-		pr_err("psci: failed to boot CPU%d (%d)\n", cpu, err);
-		return err;
-	}
-
-	return 0;
-}
-
-const struct smp_enable_ops smp_psci_ops __initconst = {
-	.name		= "psci",
-	.init_cpu	= smp_psci_init_cpu,
-	.prepare_cpu	= smp_psci_prepare_cpu,
-};
-- 
cgit 


From cd1aebf5277a3a154a9e4c0ea4b3acabb62e5cab Mon Sep 17 00:00:00 2001
From: Mark Rutland <mark.rutland@arm.com>
Date: Thu, 24 Oct 2013 20:30:15 +0100
Subject: arm64: reorganise smp_enable_ops

For hotplug support, we're going to want a place to store operations
that do more than bring CPUs online, and it makes sense to group these
with our current smp_enable_ops. For cpuidle support, we'll want to
group additional functions, and we may want them even for UP kernels.

This patch renames smp_enable_ops to the more general cpu_operations,
and pulls the definitions out of smp code such that they can be used in
UP kernels. While we're at it, fix up instances of the cpu parameter to
be an unsigned int, drop the init markings and rename the *_cpu
functions to cpu_* to reduce future churn when cpu_operations is
extended.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/include/asm/cpu_ops.h   | 33 ++++++++++++++++++++++++++
 arch/arm64/include/asm/smp.h       | 11 ---------
 arch/arm64/kernel/Makefile         |  2 +-
 arch/arm64/kernel/cpu_ops.c        | 47 ++++++++++++++++++++++++++++++++++++++
 arch/arm64/kernel/psci.c           | 11 +++++----
 arch/arm64/kernel/smp.c            | 39 ++++++++-----------------------
 arch/arm64/kernel/smp_spin_table.c | 11 +++++----
 7 files changed, 102 insertions(+), 52 deletions(-)
 create mode 100644 arch/arm64/include/asm/cpu_ops.h
 create mode 100644 arch/arm64/kernel/cpu_ops.c

diff --git a/arch/arm64/include/asm/cpu_ops.h b/arch/arm64/include/asm/cpu_ops.h
new file mode 100644
index 000000000000..3c60c8d1d928
--- /dev/null
+++ b/arch/arm64/include/asm/cpu_ops.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright (C) 2013 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef __ASM_CPU_OPS_H
+#define __ASM_CPU_OPS_H
+
+#include <linux/init.h>
+#include <linux/threads.h>
+
+struct device_node;
+
+struct cpu_operations {
+	const char	*name;
+	int		(*cpu_init)(struct device_node *, unsigned int);
+	int		(*cpu_prepare)(unsigned int);
+};
+
+extern const struct cpu_operations *cpu_ops[NR_CPUS];
+extern const struct cpu_operations * __init cpu_get_ops(const char *name);
+
+#endif /* ifndef __ASM_CPU_OPS_H */
diff --git a/arch/arm64/include/asm/smp.h b/arch/arm64/include/asm/smp.h
index 4b8023c5d146..7e34295f78e3 100644
--- a/arch/arm64/include/asm/smp.h
+++ b/arch/arm64/include/asm/smp.h
@@ -66,15 +66,4 @@ extern volatile unsigned long secondary_holding_pen_release;
 extern void arch_send_call_function_single_ipi(int cpu);
 extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
 
-struct device_node;
-
-struct smp_enable_ops {
-	const char	*name;
-	int		(*init_cpu)(struct device_node *, int);
-	int		(*prepare_cpu)(int);
-};
-
-extern const struct smp_enable_ops smp_spin_table_ops;
-extern const struct smp_enable_ops smp_psci_ops;
-
 #endif /* ifndef __ASM_SMP_H */
diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile
index 75a90c15b30b..5ba2fd43a75b 100644
--- a/arch/arm64/kernel/Makefile
+++ b/arch/arm64/kernel/Makefile
@@ -9,7 +9,7 @@ AFLAGS_head.o		:= -DTEXT_OFFSET=$(TEXT_OFFSET)
 arm64-obj-y		:= cputable.o debug-monitors.o entry.o irq.o fpsimd.o	\
 			   entry-fpsimd.o process.o ptrace.o setup.o signal.o	\
 			   sys.o stacktrace.o time.o traps.o io.o vdso.o	\
-			   hyp-stub.o psci.o
+			   hyp-stub.o psci.o cpu_ops.o
 
 arm64-obj-$(CONFIG_COMPAT)		+= sys32.o kuser32.o signal32.o 	\
 					   sys_compat.o
diff --git a/arch/arm64/kernel/cpu_ops.c b/arch/arm64/kernel/cpu_ops.c
new file mode 100644
index 000000000000..e2652aadd9ea
--- /dev/null
+++ b/arch/arm64/kernel/cpu_ops.c
@@ -0,0 +1,47 @@
+/*
+ * CPU kernel entry/exit control
+ *
+ * Copyright (C) 2013 ARM Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <asm/cpu_ops.h>
+#include <linux/string.h>
+
+extern const struct cpu_operations smp_spin_table_ops;
+extern const struct cpu_operations cpu_psci_ops;
+
+const struct cpu_operations *cpu_ops[NR_CPUS];
+
+static const struct cpu_operations *supported_cpu_ops[] __initconst = {
+#ifdef CONFIG_SMP
+	&smp_spin_table_ops,
+	&cpu_psci_ops,
+#endif
+	NULL,
+};
+
+const struct cpu_operations * __init cpu_get_ops(const char *name)
+{
+	const struct cpu_operations **ops = supported_cpu_ops;
+
+	while (*ops) {
+		if (!strcmp(name, (*ops)->name))
+			return *ops;
+
+		ops++;
+	}
+
+	return NULL;
+}
diff --git a/arch/arm64/kernel/psci.c b/arch/arm64/kernel/psci.c
index 368b78788cb5..ccec2ca67755 100644
--- a/arch/arm64/kernel/psci.c
+++ b/arch/arm64/kernel/psci.c
@@ -20,6 +20,7 @@
 #include <linux/smp.h>
 
 #include <asm/compiler.h>
+#include <asm/cpu_ops.h>
 #include <asm/errno.h>
 #include <asm/psci.h>
 #include <asm/smp_plat.h>
@@ -231,12 +232,12 @@ out_put_node:
 
 #ifdef CONFIG_SMP
 
-static int __init smp_psci_init_cpu(struct device_node *dn, int cpu)
+static int __init cpu_psci_cpu_init(struct device_node *dn, unsigned int cpu)
 {
 	return 0;
 }
 
-static int __init smp_psci_prepare_cpu(int cpu)
+static int __init cpu_psci_cpu_prepare(unsigned int cpu)
 {
 	int err;
 
@@ -254,10 +255,10 @@ static int __init smp_psci_prepare_cpu(int cpu)
 	return 0;
 }
 
-const struct smp_enable_ops smp_psci_ops __initconst = {
+const struct cpu_operations cpu_psci_ops = {
 	.name		= "psci",
-	.init_cpu	= smp_psci_init_cpu,
-	.prepare_cpu	= smp_psci_prepare_cpu,
+	.cpu_init	= cpu_psci_cpu_init,
+	.cpu_prepare	= cpu_psci_cpu_prepare,
 };
 
 #endif
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 78db90dcc910..8965fb7dee89 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -39,6 +39,7 @@
 #include <asm/atomic.h>
 #include <asm/cacheflush.h>
 #include <asm/cputype.h>
+#include <asm/cpu_ops.h>
 #include <asm/mmu_context.h>
 #include <asm/pgtable.h>
 #include <asm/pgalloc.h>
@@ -232,28 +233,6 @@ void __init smp_prepare_boot_cpu(void)
 
 static void (*smp_cross_call)(const struct cpumask *, unsigned int);
 
-static const struct smp_enable_ops *enable_ops[] __initconst = {
-	&smp_spin_table_ops,
-	&smp_psci_ops,
-	NULL,
-};
-
-static const struct smp_enable_ops *smp_enable_ops[NR_CPUS];
-
-static const struct smp_enable_ops * __init smp_get_enable_ops(const char *name)
-{
-	const struct smp_enable_ops **ops = enable_ops;
-
-	while (*ops) {
-		if (!strcmp(name, (*ops)->name))
-			return *ops;
-
-		ops++;
-	}
-
-	return NULL;
-}
-
 /*
  * Enumerate the possible CPU set from the device tree and build the
  * cpu logical map array containing MPIDR values related to logical
@@ -263,7 +242,7 @@ void __init smp_init_cpus(void)
 {
 	const char *enable_method;
 	struct device_node *dn = NULL;
-	int i, cpu = 1;
+	unsigned int i, cpu = 1;
 	bool bootcpu_valid = false;
 
 	while ((dn = of_find_node_by_type(dn, "cpu"))) {
@@ -342,15 +321,15 @@ void __init smp_init_cpus(void)
 			goto next;
 		}
 
-		smp_enable_ops[cpu] = smp_get_enable_ops(enable_method);
+		cpu_ops[cpu] = cpu_get_ops(enable_method);
 
-		if (!smp_enable_ops[cpu]) {
+		if (!cpu_ops[cpu]) {
 			pr_err("%s: invalid enable-method property: %s\n",
 			       dn->full_name, enable_method);
 			goto next;
 		}
 
-		if (smp_enable_ops[cpu]->init_cpu(dn, cpu))
+		if (cpu_ops[cpu]->cpu_init(dn, cpu))
 			goto next;
 
 		pr_debug("cpu logical map 0x%llx\n", hwid);
@@ -380,8 +359,8 @@ next:
 
 void __init smp_prepare_cpus(unsigned int max_cpus)
 {
-	int cpu, err;
-	unsigned int ncores = num_possible_cpus();
+	int err;
+	unsigned int cpu, ncores = num_possible_cpus();
 
 	/*
 	 * are we trying to boot more cores than exist?
@@ -408,10 +387,10 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
 		if (cpu == smp_processor_id())
 			continue;
 
-		if (!smp_enable_ops[cpu])
+		if (!cpu_ops[cpu])
 			continue;
 
-		err = smp_enable_ops[cpu]->prepare_cpu(cpu);
+		err = cpu_ops[cpu]->cpu_prepare(cpu);
 		if (err)
 			continue;
 
diff --git a/arch/arm64/kernel/smp_spin_table.c b/arch/arm64/kernel/smp_spin_table.c
index 7c35fa682f76..a8b76e4eccff 100644
--- a/arch/arm64/kernel/smp_spin_table.c
+++ b/arch/arm64/kernel/smp_spin_table.c
@@ -21,10 +21,11 @@
 #include <linux/smp.h>
 
 #include <asm/cacheflush.h>
+#include <asm/cpu_ops.h>
 
 static phys_addr_t cpu_release_addr[NR_CPUS];
 
-static int __init smp_spin_table_init_cpu(struct device_node *dn, int cpu)
+static int smp_spin_table_cpu_init(struct device_node *dn, unsigned int cpu)
 {
 	/*
 	 * Determine the address from which the CPU is polling.
@@ -40,7 +41,7 @@ static int __init smp_spin_table_init_cpu(struct device_node *dn, int cpu)
 	return 0;
 }
 
-static int __init smp_spin_table_prepare_cpu(int cpu)
+static int smp_spin_table_cpu_prepare(unsigned int cpu)
 {
 	void **release_addr;
 
@@ -59,8 +60,8 @@ static int __init smp_spin_table_prepare_cpu(int cpu)
 	return 0;
 }
 
-const struct smp_enable_ops smp_spin_table_ops __initconst = {
+const struct cpu_operations smp_spin_table_ops = {
 	.name		= "spin-table",
-	.init_cpu 	= smp_spin_table_init_cpu,
-	.prepare_cpu	= smp_spin_table_prepare_cpu,
+	.cpu_init	= smp_spin_table_cpu_init,
+	.cpu_prepare	= smp_spin_table_cpu_prepare,
 };
-- 
cgit 


From 652af899799354049b273af897b798b8f03fdd88 Mon Sep 17 00:00:00 2001
From: Mark Rutland <mark.rutland@arm.com>
Date: Thu, 24 Oct 2013 20:30:16 +0100
Subject: arm64: factor out spin-table boot method

The arm64 kernel has an internal holding pen, which is necessary for
some systems where we can't bring CPUs online individually and must hold
multiple CPUs in a safe area until the kernel is able to handle them.
The current SMP infrastructure for arm64 is closely coupled to this
holding pen, and alternative boot methods must launch CPUs into the pen,
where they sit before they are launched into the kernel proper.

With PSCI (and possibly other future boot methods), we can bring CPUs
online individually, and need not perform the secondary_holding_pen
dance. Instead, this patch factors the holding pen management code out
to the spin-table boot method code, as it is the only boot method
requiring the pen.

A new entry point for secondaries, secondary_entry is added for other
boot methods to use, which bypasses the holding pen and its associated
overhead when bringing CPUs online. The smp.pen.text section is also
removed, as the pen can live in head.text without problem.

The cpu_operations structure is extended with two new functions,
cpu_boot and cpu_postboot, for bringing a cpu into the kernel and
performing any post-boot cleanup required by a bootmethod (e.g.
resetting the secondary_holding_pen_release to INVALID_HWID).
Documentation is added for cpu_operations.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/include/asm/cpu_ops.h   | 16 ++++++++
 arch/arm64/include/asm/smp.h       |  3 +-
 arch/arm64/kernel/head.S           | 12 +++++-
 arch/arm64/kernel/psci.c           | 18 +++++----
 arch/arm64/kernel/smp.c            | 65 +++------------------------------
 arch/arm64/kernel/smp_spin_table.c | 75 ++++++++++++++++++++++++++++++++++++++
 arch/arm64/kernel/vmlinux.lds.S    |  1 -
 7 files changed, 117 insertions(+), 73 deletions(-)

diff --git a/arch/arm64/include/asm/cpu_ops.h b/arch/arm64/include/asm/cpu_ops.h
index 3c60c8d1d928..67bc4fd83798 100644
--- a/arch/arm64/include/asm/cpu_ops.h
+++ b/arch/arm64/include/asm/cpu_ops.h
@@ -21,10 +21,26 @@
 
 struct device_node;
 
+/**
+ * struct cpu_operations - Callback operations for hotplugging CPUs.
+ *
+ * @name:	Name of the property as appears in a devicetree cpu node's
+ *		enable-method property.
+ * @cpu_init:	Reads any data necessary for a specific enable-method from the
+ *		devicetree, for a given cpu node and proposed logical id.
+ * @cpu_prepare: Early one-time preparation step for a cpu. If there is a
+ *		mechanism for doing so, tests whether it is possible to boot
+ *		the given CPU.
+ * @cpu_boot:	Boots a cpu into the kernel.
+ * @cpu_postboot: Optionally, perform any post-boot cleanup or necesary
+ *		synchronisation. Called from the cpu being booted.
+ */
 struct cpu_operations {
 	const char	*name;
 	int		(*cpu_init)(struct device_node *, unsigned int);
 	int		(*cpu_prepare)(unsigned int);
+	int		(*cpu_boot)(unsigned int);
+	void		(*cpu_postboot)(void);
 };
 
 extern const struct cpu_operations *cpu_ops[NR_CPUS];
diff --git a/arch/arm64/include/asm/smp.h b/arch/arm64/include/asm/smp.h
index 7e34295f78e3..d64187ce69a2 100644
--- a/arch/arm64/include/asm/smp.h
+++ b/arch/arm64/include/asm/smp.h
@@ -60,8 +60,7 @@ struct secondary_data {
 	void *stack;
 };
 extern struct secondary_data secondary_data;
-extern void secondary_holding_pen(void);
-extern volatile unsigned long secondary_holding_pen_release;
+extern void secondary_entry(void);
 
 extern void arch_send_call_function_single_ipi(int cpu);
 extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index 7090c126797c..bf7efdf2d7e7 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -225,7 +225,6 @@ ENTRY(__boot_cpu_mode)
 	.quad	PAGE_OFFSET
 
 #ifdef CONFIG_SMP
-	.pushsection    .smp.pen.text, "ax"
 	.align	3
 1:	.quad	.
 	.quad	secondary_holding_pen_release
@@ -250,7 +249,16 @@ pen:	ldr	x4, [x3]
 	wfe
 	b	pen
 ENDPROC(secondary_holding_pen)
-	.popsection
+
+	/*
+	 * Secondary entry point that jumps straight into the kernel. Only to
+	 * be used where CPUs are brought online dynamically by the kernel.
+	 */
+ENTRY(secondary_entry)
+	bl	__calc_phys_offset		// x2=phys offset
+	bl	el2_setup			// Drop to EL1
+	b	secondary_startup
+ENDPROC(secondary_entry)
 
 ENTRY(secondary_startup)
 	/*
diff --git a/arch/arm64/kernel/psci.c b/arch/arm64/kernel/psci.c
index ccec2ca67755..fb56b6158344 100644
--- a/arch/arm64/kernel/psci.c
+++ b/arch/arm64/kernel/psci.c
@@ -239,26 +239,28 @@ static int __init cpu_psci_cpu_init(struct device_node *dn, unsigned int cpu)
 
 static int __init cpu_psci_cpu_prepare(unsigned int cpu)
 {
-	int err;
-
 	if (!psci_ops.cpu_on) {
 		pr_err("no cpu_on method, not booting CPU%d\n", cpu);
 		return -ENODEV;
 	}
 
-	err = psci_ops.cpu_on(cpu_logical_map(cpu), __pa(secondary_holding_pen));
-	if (err) {
-		pr_err("failed to boot CPU%d (%d)\n", cpu, err);
-		return err;
-	}
-
 	return 0;
 }
 
+static int cpu_psci_cpu_boot(unsigned int cpu)
+{
+	int err = psci_ops.cpu_on(cpu_logical_map(cpu), __pa(secondary_entry));
+	if (err)
+		pr_err("psci: failed to boot CPU%d (%d)\n", cpu, err);
+
+	return err;
+}
+
 const struct cpu_operations cpu_psci_ops = {
 	.name		= "psci",
 	.cpu_init	= cpu_psci_cpu_init,
 	.cpu_prepare	= cpu_psci_cpu_prepare,
+	.cpu_boot	= cpu_psci_cpu_boot,
 };
 
 #endif
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 8965fb7dee89..6806bc40b630 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -55,7 +55,6 @@
  * where to place its SVC stack
  */
 struct secondary_data secondary_data;
-volatile unsigned long secondary_holding_pen_release = INVALID_HWID;
 
 enum ipi_msg_type {
 	IPI_RESCHEDULE,
@@ -64,61 +63,16 @@ enum ipi_msg_type {
 	IPI_CPU_STOP,
 };
 
-static DEFINE_RAW_SPINLOCK(boot_lock);
-
-/*
- * Write secondary_holding_pen_release in a way that is guaranteed to be
- * visible to all observers, irrespective of whether they're taking part
- * in coherency or not.  This is necessary for the hotplug code to work
- * reliably.
- */
-static void write_pen_release(u64 val)
-{
-	void *start = (void *)&secondary_holding_pen_release;
-	unsigned long size = sizeof(secondary_holding_pen_release);
-
-	secondary_holding_pen_release = val;
-	__flush_dcache_area(start, size);
-}
-
 /*
  * Boot a secondary CPU, and assign it the specified idle task.
  * This also gives us the initial stack to use for this CPU.
  */
 static int boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
-	unsigned long timeout;
-
-	/*
-	 * Set synchronisation state between this boot processor
-	 * and the secondary one
-	 */
-	raw_spin_lock(&boot_lock);
-
-	/*
-	 * Update the pen release flag.
-	 */
-	write_pen_release(cpu_logical_map(cpu));
+	if (cpu_ops[cpu]->cpu_boot)
+		return cpu_ops[cpu]->cpu_boot(cpu);
 
-	/*
-	 * Send an event, causing the secondaries to read pen_release.
-	 */
-	sev();
-
-	timeout = jiffies + (1 * HZ);
-	while (time_before(jiffies, timeout)) {
-		if (secondary_holding_pen_release == INVALID_HWID)
-			break;
-		udelay(10);
-	}
-
-	/*
-	 * Now the secondary core is starting up let it run its
-	 * calibrations, then wait for it to finish
-	 */
-	raw_spin_unlock(&boot_lock);
-
-	return secondary_holding_pen_release != INVALID_HWID ? -ENOSYS : 0;
+	return -EOPNOTSUPP;
 }
 
 static DECLARE_COMPLETION(cpu_running);
@@ -188,17 +142,8 @@ asmlinkage void secondary_start_kernel(void)
 	preempt_disable();
 	trace_hardirqs_off();
 
-	/*
-	 * Let the primary processor know we're out of the
-	 * pen, then head off into the C entry point
-	 */
-	write_pen_release(INVALID_HWID);
-
-	/*
-	 * Synchronise with the boot thread.
-	 */
-	raw_spin_lock(&boot_lock);
-	raw_spin_unlock(&boot_lock);
+	if (cpu_ops[cpu]->cpu_postboot)
+		cpu_ops[cpu]->cpu_postboot();
 
 	/*
 	 * OK, now it's safe to let the boot CPU continue.  Wait for
diff --git a/arch/arm64/kernel/smp_spin_table.c b/arch/arm64/kernel/smp_spin_table.c
index a8b76e4eccff..27f08367a6e7 100644
--- a/arch/arm64/kernel/smp_spin_table.c
+++ b/arch/arm64/kernel/smp_spin_table.c
@@ -16,14 +16,37 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/of.h>
 #include <linux/smp.h>
 
 #include <asm/cacheflush.h>
 #include <asm/cpu_ops.h>
+#include <asm/cputype.h>
+#include <asm/smp_plat.h>
+
+extern void secondary_holding_pen(void);
+volatile unsigned long secondary_holding_pen_release = INVALID_HWID;
 
 static phys_addr_t cpu_release_addr[NR_CPUS];
+static DEFINE_RAW_SPINLOCK(boot_lock);
+
+/*
+ * Write secondary_holding_pen_release in a way that is guaranteed to be
+ * visible to all observers, irrespective of whether they're taking part
+ * in coherency or not.  This is necessary for the hotplug code to work
+ * reliably.
+ */
+static void write_pen_release(u64 val)
+{
+	void *start = (void *)&secondary_holding_pen_release;
+	unsigned long size = sizeof(secondary_holding_pen_release);
+
+	secondary_holding_pen_release = val;
+	__flush_dcache_area(start, size);
+}
+
 
 static int smp_spin_table_cpu_init(struct device_node *dn, unsigned int cpu)
 {
@@ -60,8 +83,60 @@ static int smp_spin_table_cpu_prepare(unsigned int cpu)
 	return 0;
 }
 
+static int smp_spin_table_cpu_boot(unsigned int cpu)
+{
+	unsigned long timeout;
+
+	/*
+	 * Set synchronisation state between this boot processor
+	 * and the secondary one
+	 */
+	raw_spin_lock(&boot_lock);
+
+	/*
+	 * Update the pen release flag.
+	 */
+	write_pen_release(cpu_logical_map(cpu));
+
+	/*
+	 * Send an event, causing the secondaries to read pen_release.
+	 */
+	sev();
+
+	timeout = jiffies + (1 * HZ);
+	while (time_before(jiffies, timeout)) {
+		if (secondary_holding_pen_release == INVALID_HWID)
+			break;
+		udelay(10);
+	}
+
+	/*
+	 * Now the secondary core is starting up let it run its
+	 * calibrations, then wait for it to finish
+	 */
+	raw_spin_unlock(&boot_lock);
+
+	return secondary_holding_pen_release != INVALID_HWID ? -ENOSYS : 0;
+}
+
+void smp_spin_table_cpu_postboot(void)
+{
+	/*
+	 * Let the primary processor know we're out of the pen.
+	 */
+	write_pen_release(INVALID_HWID);
+
+	/*
+	 * Synchronise with the boot thread.
+	 */
+	raw_spin_lock(&boot_lock);
+	raw_spin_unlock(&boot_lock);
+}
+
 const struct cpu_operations smp_spin_table_ops = {
 	.name		= "spin-table",
 	.cpu_init	= smp_spin_table_cpu_init,
 	.cpu_prepare	= smp_spin_table_cpu_prepare,
+	.cpu_boot	= smp_spin_table_cpu_boot,
+	.cpu_postboot	= smp_spin_table_cpu_postboot,
 };
diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index f8ab9d8e2ea3..991ffddf49df 100644
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -54,7 +54,6 @@ SECTIONS
 	}
 	.text : {			/* Real text segment		*/
 		_stext = .;		/* Text and read-only data	*/
-			*(.smp.pen.text)
 			__exception_text_start = .;
 			*(.exception.text)
 			__exception_text_end = .;
-- 
cgit 


From e8765b265a69c83504afc6901d6e137b1811d1f0 Mon Sep 17 00:00:00 2001
From: Mark Rutland <mark.rutland@arm.com>
Date: Thu, 24 Oct 2013 20:30:17 +0100
Subject: arm64: read enable-method for CPU0

With the advent of CPU_HOTPLUG, the enable-method property for CPU0 may
tells us something useful (i.e. how to hotplug it back on), so we must
read it along with all the enable-method for all the other CPUs.  Even
on UP the enable-method may tell us useful information (e.g. if a core
has some mechanism that might be usable for cpuidle), so we should
always read it.

This patch factors out the reading of the enable method, and ensures
that CPU0's enable method is read regardless of whether the kernel is
built with SMP support.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/include/asm/cpu_ops.h |  3 ++-
 arch/arm64/kernel/cpu_ops.c      | 54 +++++++++++++++++++++++++++++++++++++++-
 arch/arm64/kernel/setup.c        |  2 ++
 arch/arm64/kernel/smp.c          | 18 +-------------
 4 files changed, 58 insertions(+), 19 deletions(-)

diff --git a/arch/arm64/include/asm/cpu_ops.h b/arch/arm64/include/asm/cpu_ops.h
index 67bc4fd83798..1a98dbfc4a5f 100644
--- a/arch/arm64/include/asm/cpu_ops.h
+++ b/arch/arm64/include/asm/cpu_ops.h
@@ -44,6 +44,7 @@ struct cpu_operations {
 };
 
 extern const struct cpu_operations *cpu_ops[NR_CPUS];
-extern const struct cpu_operations * __init cpu_get_ops(const char *name);
+extern int __init cpu_read_ops(struct device_node *dn, int cpu);
+extern void __init cpu_read_bootcpu_ops(void);
 
 #endif /* ifndef __ASM_CPU_OPS_H */
diff --git a/arch/arm64/kernel/cpu_ops.c b/arch/arm64/kernel/cpu_ops.c
index e2652aadd9ea..aa0c9e78dbe1 100644
--- a/arch/arm64/kernel/cpu_ops.c
+++ b/arch/arm64/kernel/cpu_ops.c
@@ -17,6 +17,9 @@
  */
 
 #include <asm/cpu_ops.h>
+#include <asm/smp_plat.h>
+#include <linux/errno.h>
+#include <linux/of.h>
 #include <linux/string.h>
 
 extern const struct cpu_operations smp_spin_table_ops;
@@ -32,7 +35,7 @@ static const struct cpu_operations *supported_cpu_ops[] __initconst = {
 	NULL,
 };
 
-const struct cpu_operations * __init cpu_get_ops(const char *name)
+static const struct cpu_operations * __init cpu_get_ops(const char *name)
 {
 	const struct cpu_operations **ops = supported_cpu_ops;
 
@@ -45,3 +48,52 @@ const struct cpu_operations * __init cpu_get_ops(const char *name)
 
 	return NULL;
 }
+
+/*
+ * Read a cpu's enable method from the device tree and record it in cpu_ops.
+ */
+int __init cpu_read_ops(struct device_node *dn, int cpu)
+{
+	const char *enable_method = of_get_property(dn, "enable-method", NULL);
+	if (!enable_method) {
+		/*
+		 * The boot CPU may not have an enable method (e.g. when
+		 * spin-table is used for secondaries). Don't warn spuriously.
+		 */
+		if (cpu != 0)
+			pr_err("%s: missing enable-method property\n",
+				dn->full_name);
+		return -ENOENT;
+	}
+
+	cpu_ops[cpu] = cpu_get_ops(enable_method);
+	if (!cpu_ops[cpu]) {
+		pr_err("%s: invalid enable-method property: %s\n",
+		       dn->full_name, enable_method);
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+void __init cpu_read_bootcpu_ops(void)
+{
+	struct device_node *dn = NULL;
+	u64 mpidr = cpu_logical_map(0);
+
+	while ((dn = of_find_node_by_type(dn, "cpu"))) {
+		u64 hwid;
+		const __be32 *prop;
+
+		prop = of_get_property(dn, "reg", NULL);
+		if (!prop)
+			continue;
+
+		hwid = of_read_number(prop, of_n_addr_cells(dn));
+		if (hwid == mpidr) {
+			cpu_read_ops(dn, 0);
+			of_node_put(dn);
+			return;
+		}
+	}
+}
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 055cfb80e05c..b65c132fac30 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -45,6 +45,7 @@
 #include <asm/cputype.h>
 #include <asm/elf.h>
 #include <asm/cputable.h>
+#include <asm/cpu_ops.h>
 #include <asm/sections.h>
 #include <asm/setup.h>
 #include <asm/smp_plat.h>
@@ -264,6 +265,7 @@ void __init setup_arch(char **cmdline_p)
 	psci_init();
 
 	cpu_logical_map(0) = read_cpuid_mpidr() & MPIDR_HWID_BITMASK;
+	cpu_read_bootcpu_ops();
 #ifdef CONFIG_SMP
 	smp_init_cpus();
 #endif
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 6806bc40b630..e992734d21ec 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -185,7 +185,6 @@ static void (*smp_cross_call)(const struct cpumask *, unsigned int);
  */
 void __init smp_init_cpus(void)
 {
-	const char *enable_method;
 	struct device_node *dn = NULL;
 	unsigned int i, cpu = 1;
 	bool bootcpu_valid = false;
@@ -256,23 +255,8 @@ void __init smp_init_cpus(void)
 		if (cpu >= NR_CPUS)
 			goto next;
 
-		/*
-		 * We currently support only the "spin-table" enable-method.
-		 */
-		enable_method = of_get_property(dn, "enable-method", NULL);
-		if (!enable_method) {
-			pr_err("%s: missing enable-method property\n",
-				dn->full_name);
+		if (cpu_read_ops(dn, cpu) != 0)
 			goto next;
-		}
-
-		cpu_ops[cpu] = cpu_get_ops(enable_method);
-
-		if (!cpu_ops[cpu]) {
-			pr_err("%s: invalid enable-method property: %s\n",
-			       dn->full_name, enable_method);
-			goto next;
-		}
 
 		if (cpu_ops[cpu]->cpu_init(dn, cpu))
 			goto next;
-- 
cgit 


From 9327e2c6bb8cb0131b38a07847cd58c78dc095e9 Mon Sep 17 00:00:00 2001
From: Mark Rutland <mark.rutland@arm.com>
Date: Thu, 24 Oct 2013 20:30:18 +0100
Subject: arm64: add CPU_HOTPLUG infrastructure

This patch adds the basic infrastructure necessary to support
CPU_HOTPLUG on arm64, based on the arm implementation. Actual hotplug
support will depend on an implementation's cpu_operations (e.g. PSCI).

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/Kconfig               |  7 +++
 arch/arm64/include/asm/cpu_ops.h |  9 ++++
 arch/arm64/include/asm/irq.h     |  1 +
 arch/arm64/include/asm/smp.h     |  5 +++
 arch/arm64/kernel/cputable.c     |  2 +-
 arch/arm64/kernel/irq.c          | 61 +++++++++++++++++++++++++
 arch/arm64/kernel/process.c      |  7 +++
 arch/arm64/kernel/smp.c          | 96 ++++++++++++++++++++++++++++++++++++++++
 8 files changed, 187 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 9e8233b3f188..86ebfe499d6a 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -161,6 +161,13 @@ config NR_CPUS
 	default "8" if ARCH_XGENE
 	default "4"
 
+config HOTPLUG_CPU
+	bool "Support for hot-pluggable CPUs"
+	depends on SMP
+	help
+	  Say Y here to experiment with turning CPUs off and on.  CPUs
+	  can be controlled through /sys/devices/system/cpu.
+
 source kernel/Kconfig.preempt
 
 config HZ
diff --git a/arch/arm64/include/asm/cpu_ops.h b/arch/arm64/include/asm/cpu_ops.h
index 1a98dbfc4a5f..c4cdb5e5b73d 100644
--- a/arch/arm64/include/asm/cpu_ops.h
+++ b/arch/arm64/include/asm/cpu_ops.h
@@ -34,6 +34,11 @@ struct device_node;
  * @cpu_boot:	Boots a cpu into the kernel.
  * @cpu_postboot: Optionally, perform any post-boot cleanup or necesary
  *		synchronisation. Called from the cpu being booted.
+ * @cpu_disable: Prepares a cpu to die. May fail for some mechanism-specific
+ * 		reason, which will cause the hot unplug to be aborted. Called
+ * 		from the cpu to be killed.
+ * @cpu_die:	Makes a cpu leave the kernel. Must not fail. Called from the
+ *		cpu being killed.
  */
 struct cpu_operations {
 	const char	*name;
@@ -41,6 +46,10 @@ struct cpu_operations {
 	int		(*cpu_prepare)(unsigned int);
 	int		(*cpu_boot)(unsigned int);
 	void		(*cpu_postboot)(void);
+#ifdef CONFIG_HOTPLUG_CPU
+	int		(*cpu_disable)(unsigned int cpu);
+	void		(*cpu_die)(unsigned int cpu);
+#endif
 };
 
 extern const struct cpu_operations *cpu_ops[NR_CPUS];
diff --git a/arch/arm64/include/asm/irq.h b/arch/arm64/include/asm/irq.h
index 0332fc077f6e..e1f7ecdde11f 100644
--- a/arch/arm64/include/asm/irq.h
+++ b/arch/arm64/include/asm/irq.h
@@ -4,6 +4,7 @@
 #include <asm-generic/irq.h>
 
 extern void (*handle_arch_irq)(struct pt_regs *);
+extern void migrate_irqs(void);
 extern void set_handle_irq(void (*handle_irq)(struct pt_regs *));
 
 #endif
diff --git a/arch/arm64/include/asm/smp.h b/arch/arm64/include/asm/smp.h
index d64187ce69a2..a498f2cd2c2a 100644
--- a/arch/arm64/include/asm/smp.h
+++ b/arch/arm64/include/asm/smp.h
@@ -65,4 +65,9 @@ extern void secondary_entry(void);
 extern void arch_send_call_function_single_ipi(int cpu);
 extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
 
+extern int __cpu_disable(void);
+
+extern void __cpu_die(unsigned int cpu);
+extern void cpu_die(void);
+
 #endif /* ifndef __ASM_SMP_H */
diff --git a/arch/arm64/kernel/cputable.c b/arch/arm64/kernel/cputable.c
index 63cfc4a43f4e..fd3993cb060f 100644
--- a/arch/arm64/kernel/cputable.c
+++ b/arch/arm64/kernel/cputable.c
@@ -22,7 +22,7 @@
 
 extern unsigned long __cpu_setup(void);
 
-struct cpu_info __initdata cpu_table[] = {
+struct cpu_info cpu_table[] = {
 	{
 		.cpu_id_val	= 0x000f0000,
 		.cpu_id_mask	= 0x000f0000,
diff --git a/arch/arm64/kernel/irq.c b/arch/arm64/kernel/irq.c
index ecb3354292ed..473e5dbf8f39 100644
--- a/arch/arm64/kernel/irq.c
+++ b/arch/arm64/kernel/irq.c
@@ -81,3 +81,64 @@ void __init init_IRQ(void)
 	if (!handle_arch_irq)
 		panic("No interrupt controller found.");
 }
+
+#ifdef CONFIG_HOTPLUG_CPU
+static bool migrate_one_irq(struct irq_desc *desc)
+{
+	struct irq_data *d = irq_desc_get_irq_data(desc);
+	const struct cpumask *affinity = d->affinity;
+	struct irq_chip *c;
+	bool ret = false;
+
+	/*
+	 * If this is a per-CPU interrupt, or the affinity does not
+	 * include this CPU, then we have nothing to do.
+	 */
+	if (irqd_is_per_cpu(d) || !cpumask_test_cpu(smp_processor_id(), affinity))
+		return false;
+
+	if (cpumask_any_and(affinity, cpu_online_mask) >= nr_cpu_ids) {
+		affinity = cpu_online_mask;
+		ret = true;
+	}
+
+	c = irq_data_get_irq_chip(d);
+	if (!c->irq_set_affinity)
+		pr_debug("IRQ%u: unable to set affinity\n", d->irq);
+	else if (c->irq_set_affinity(d, affinity, true) == IRQ_SET_MASK_OK && ret)
+		cpumask_copy(d->affinity, affinity);
+
+	return ret;
+}
+
+/*
+ * The current CPU has been marked offline.  Migrate IRQs off this CPU.
+ * If the affinity settings do not allow other CPUs, force them onto any
+ * available CPU.
+ *
+ * Note: we must iterate over all IRQs, whether they have an attached
+ * action structure or not, as we need to get chained interrupts too.
+ */
+void migrate_irqs(void)
+{
+	unsigned int i;
+	struct irq_desc *desc;
+	unsigned long flags;
+
+	local_irq_save(flags);
+
+	for_each_irq_desc(i, desc) {
+		bool affinity_broken;
+
+		raw_spin_lock(&desc->lock);
+		affinity_broken = migrate_one_irq(desc);
+		raw_spin_unlock(&desc->lock);
+
+		if (affinity_broken)
+			pr_warn_ratelimited("IRQ%u no longer affine to CPU%u\n",
+					    i, smp_processor_id());
+	}
+
+	local_irq_restore(flags);
+}
+#endif /* CONFIG_HOTPLUG_CPU */
diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c
index 7ae8a1f00c3c..de17c89985db 100644
--- a/arch/arm64/kernel/process.c
+++ b/arch/arm64/kernel/process.c
@@ -102,6 +102,13 @@ void arch_cpu_idle(void)
 	local_irq_enable();
 }
 
+#ifdef CONFIG_HOTPLUG_CPU
+void arch_cpu_idle_dead(void)
+{
+       cpu_die();
+}
+#endif
+
 void machine_shutdown(void)
 {
 #ifdef CONFIG_SMP
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index e992734d21ec..5b4ddbd653c3 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -167,6 +167,102 @@ asmlinkage void secondary_start_kernel(void)
 	cpu_startup_entry(CPUHP_ONLINE);
 }
 
+#ifdef CONFIG_HOTPLUG_CPU
+static int op_cpu_disable(unsigned int cpu)
+{
+	/*
+	 * If we don't have a cpu_die method, abort before we reach the point
+	 * of no return. CPU0 may not have an cpu_ops, so test for it.
+	 */
+	if (!cpu_ops[cpu] || !cpu_ops[cpu]->cpu_die)
+		return -EOPNOTSUPP;
+
+	/*
+	 * We may need to abort a hot unplug for some other mechanism-specific
+	 * reason.
+	 */
+	if (cpu_ops[cpu]->cpu_disable)
+		return cpu_ops[cpu]->cpu_disable(cpu);
+
+	return 0;
+}
+
+/*
+ * __cpu_disable runs on the processor to be shutdown.
+ */
+int __cpu_disable(void)
+{
+	unsigned int cpu = smp_processor_id();
+	int ret;
+
+	ret = op_cpu_disable(cpu);
+	if (ret)
+		return ret;
+
+	/*
+	 * Take this CPU offline.  Once we clear this, we can't return,
+	 * and we must not schedule until we're ready to give up the cpu.
+	 */
+	set_cpu_online(cpu, false);
+
+	/*
+	 * OK - migrate IRQs away from this CPU
+	 */
+	migrate_irqs();
+
+	/*
+	 * Remove this CPU from the vm mask set of all processes.
+	 */
+	clear_tasks_mm_cpumask(cpu);
+
+	return 0;
+}
+
+static DECLARE_COMPLETION(cpu_died);
+
+/*
+ * called on the thread which is asking for a CPU to be shutdown -
+ * waits until shutdown has completed, or it is timed out.
+ */
+void __cpu_die(unsigned int cpu)
+{
+	if (!wait_for_completion_timeout(&cpu_died, msecs_to_jiffies(5000))) {
+		pr_crit("CPU%u: cpu didn't die\n", cpu);
+		return;
+	}
+	pr_notice("CPU%u: shutdown\n", cpu);
+}
+
+/*
+ * Called from the idle thread for the CPU which has been shutdown.
+ *
+ * Note that we disable IRQs here, but do not re-enable them
+ * before returning to the caller. This is also the behaviour
+ * of the other hotplug-cpu capable cores, so presumably coming
+ * out of idle fixes this.
+ */
+void cpu_die(void)
+{
+	unsigned int cpu = smp_processor_id();
+
+	idle_task_exit();
+
+	local_irq_disable();
+
+	/* Tell __cpu_die() that this CPU is now safe to dispose of */
+	complete(&cpu_died);
+
+	/*
+	 * Actually shutdown the CPU. This must never fail. The specific hotplug
+	 * mechanism must perform all required cache maintenance to ensure that
+	 * no dirty lines are lost in the process of shutting down the CPU.
+	 */
+	cpu_ops[cpu]->cpu_die(cpu);
+
+	BUG();
+}
+#endif
+
 void __init smp_cpus_done(unsigned int max_cpus)
 {
 	pr_info("SMP: Total of %d processors activated.\n", num_online_cpus());
-- 
cgit 


From 831ccf79b46e02f31cfd16c66df9d5600f635155 Mon Sep 17 00:00:00 2001
From: Mark Rutland <mark.rutland@arm.com>
Date: Thu, 24 Oct 2013 20:30:19 +0100
Subject: arm64: add PSCI CPU_OFF-based hotplug support

This patch adds support for using PSCI CPU_OFF calls for CPU hotplug.
With this code it is possible to hot unplug CPUs with "psci" as their
boot-method, as long as there's an appropriate cpu_off function id
specified in the psci node.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kernel/psci.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm64/kernel/psci.c b/arch/arm64/kernel/psci.c
index fb56b6158344..4f97db3d7363 100644
--- a/arch/arm64/kernel/psci.c
+++ b/arch/arm64/kernel/psci.c
@@ -256,11 +256,41 @@ static int cpu_psci_cpu_boot(unsigned int cpu)
 	return err;
 }
 
+#ifdef CONFIG_HOTPLUG_CPU
+static int cpu_psci_cpu_disable(unsigned int cpu)
+{
+	/* Fail early if we don't have CPU_OFF support */
+	if (!psci_ops.cpu_off)
+		return -EOPNOTSUPP;
+	return 0;
+}
+
+static void cpu_psci_cpu_die(unsigned int cpu)
+{
+	int ret;
+	/*
+	 * There are no known implementations of PSCI actually using the
+	 * power state field, pass a sensible default for now.
+	 */
+	struct psci_power_state state = {
+		.type = PSCI_POWER_STATE_TYPE_POWER_DOWN,
+	};
+
+	ret = psci_ops.cpu_off(state);
+
+	pr_crit("psci: unable to power off CPU%u (%d)\n", cpu, ret);
+}
+#endif
+
 const struct cpu_operations cpu_psci_ops = {
 	.name		= "psci",
 	.cpu_init	= cpu_psci_cpu_init,
 	.cpu_prepare	= cpu_psci_cpu_prepare,
 	.cpu_boot	= cpu_psci_cpu_boot,
+#ifdef CONFIG_HOTPLUG_CPU
+	.cpu_disable	= cpu_psci_cpu_disable,
+	.cpu_die	= cpu_psci_cpu_die,
+#endif
 };
 
 #endif
-- 
cgit 


From 7100b077ab4ff5fb0ba7760ce54465f623a0a763 Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Fri, 25 Oct 2013 10:39:49 +0000
Subject: xen: introduce xen_dma_map/unmap_page and
 xen_dma_sync_single_for_cpu/device

Introduce xen_dma_map_page, xen_dma_unmap_page,
xen_dma_sync_single_for_cpu and xen_dma_sync_single_for_device.
They have empty implementations on x86 and ia64 but they call the
corresponding platform dma_ops function on arm and arm64.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

Changes in v9:
- xen_dma_map_page return void, avoid page_to_phys.
---
 arch/arm/include/asm/xen/page-coherent.h   | 28 ++++++++++++++++++++++++++++
 arch/arm64/include/asm/xen/page-coherent.h | 25 +++++++++++++++++++++++++
 arch/ia64/include/asm/xen/page-coherent.h  | 14 ++++++++++++++
 arch/x86/include/asm/xen/page-coherent.h   | 14 ++++++++++++++
 4 files changed, 81 insertions(+)

diff --git a/arch/arm/include/asm/xen/page-coherent.h b/arch/arm/include/asm/xen/page-coherent.h
index c4d843c300c7..1109017499e5 100644
--- a/arch/arm/include/asm/xen/page-coherent.h
+++ b/arch/arm/include/asm/xen/page-coherent.h
@@ -19,4 +19,32 @@ static inline void xen_free_coherent_pages(struct device *hwdev, size_t size,
 	__generic_dma_ops(hwdev)->free(hwdev, size, cpu_addr, dma_handle, attrs);
 }
 
+static inline void xen_dma_map_page(struct device *hwdev, struct page *page,
+	     unsigned long offset, size_t size, enum dma_data_direction dir,
+	     struct dma_attrs *attrs)
+{
+	__generic_dma_ops(hwdev)->map_page(hwdev, page, offset, size, dir, attrs);
+}
+
+static inline void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
+		size_t size, enum dma_data_direction dir,
+		struct dma_attrs *attrs)
+{
+	if (__generic_dma_ops(hwdev)->unmap_page)
+		__generic_dma_ops(hwdev)->unmap_page(hwdev, handle, size, dir, attrs);
+}
+
+static inline void xen_dma_sync_single_for_cpu(struct device *hwdev,
+		dma_addr_t handle, size_t size, enum dma_data_direction dir)
+{
+	if (__generic_dma_ops(hwdev)->sync_single_for_cpu)
+		__generic_dma_ops(hwdev)->sync_single_for_cpu(hwdev, handle, size, dir);
+}
+
+static inline void xen_dma_sync_single_for_device(struct device *hwdev,
+		dma_addr_t handle, size_t size, enum dma_data_direction dir)
+{
+	if (__generic_dma_ops(hwdev)->sync_single_for_device)
+		__generic_dma_ops(hwdev)->sync_single_for_device(hwdev, handle, size, dir);
+}
 #endif /* _ASM_ARM_XEN_PAGE_COHERENT_H */
diff --git a/arch/arm64/include/asm/xen/page-coherent.h b/arch/arm64/include/asm/xen/page-coherent.h
index 3b4f029b6660..2820f1a6eebe 100644
--- a/arch/arm64/include/asm/xen/page-coherent.h
+++ b/arch/arm64/include/asm/xen/page-coherent.h
@@ -19,4 +19,29 @@ static inline void xen_free_coherent_pages(struct device *hwdev, size_t size,
 	__generic_dma_ops(hwdev)->free(hwdev, size, cpu_addr, dma_handle, attrs);
 }
 
+static inline void xen_dma_map_page(struct device *hwdev, struct page *page,
+	     unsigned long offset, size_t size, enum dma_data_direction dir,
+	     struct dma_attrs *attrs)
+{
+	__generic_dma_ops(hwdev)->map_page(hwdev, page, offset, size, dir, attrs);
+}
+
+static inline void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
+		size_t size, enum dma_data_direction dir,
+		struct dma_attrs *attrs)
+{
+	__generic_dma_ops(hwdev)->unmap_page(hwdev, handle, size, dir, attrs);
+}
+
+static inline void xen_dma_sync_single_for_cpu(struct device *hwdev,
+		dma_addr_t handle, size_t size, enum dma_data_direction dir)
+{
+	__generic_dma_ops(hwdev)->sync_single_for_cpu(hwdev, handle, size, dir);
+}
+
+static inline void xen_dma_sync_single_for_device(struct device *hwdev,
+		dma_addr_t handle, size_t size, enum dma_data_direction dir)
+{
+	__generic_dma_ops(hwdev)->sync_single_for_device(hwdev, handle, size, dir);
+}
 #endif /* _ASM_ARM64_XEN_PAGE_COHERENT_H */
diff --git a/arch/ia64/include/asm/xen/page-coherent.h b/arch/ia64/include/asm/xen/page-coherent.h
index 37b929c117bf..96e42f97fa1f 100644
--- a/arch/ia64/include/asm/xen/page-coherent.h
+++ b/arch/ia64/include/asm/xen/page-coherent.h
@@ -21,4 +21,18 @@ static inline void xen_free_coherent_pages(struct device *hwdev, size_t size,
 	free_pages((unsigned long) cpu_addr, get_order(size));
 }
 
+static inline void xen_dma_map_page(struct device *hwdev, struct page *page,
+	     unsigned long offset, size_t size, enum dma_data_direction dir,
+	     struct dma_attrs *attrs) { }
+
+static inline void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
+		size_t size, enum dma_data_direction dir,
+		struct dma_attrs *attrs) { }
+
+static inline void xen_dma_sync_single_for_cpu(struct device *hwdev,
+		dma_addr_t handle, size_t size, enum dma_data_direction dir) { }
+
+static inline void xen_dma_sync_single_for_device(struct device *hwdev,
+		dma_addr_t handle, size_t size, enum dma_data_direction dir) { }
+
 #endif /* _ASM_IA64_XEN_PAGE_COHERENT_H */
diff --git a/arch/x86/include/asm/xen/page-coherent.h b/arch/x86/include/asm/xen/page-coherent.h
index 31de2e07918d..7f02fe4e2c7b 100644
--- a/arch/x86/include/asm/xen/page-coherent.h
+++ b/arch/x86/include/asm/xen/page-coherent.h
@@ -21,4 +21,18 @@ static inline void xen_free_coherent_pages(struct device *hwdev, size_t size,
 	free_pages((unsigned long) cpu_addr, get_order(size));
 }
 
+static inline void xen_dma_map_page(struct device *hwdev, struct page *page,
+	     unsigned long offset, size_t size, enum dma_data_direction dir,
+	     struct dma_attrs *attrs) { }
+
+static inline void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle,
+		size_t size, enum dma_data_direction dir,
+		struct dma_attrs *attrs) { }
+
+static inline void xen_dma_sync_single_for_cpu(struct device *hwdev,
+		dma_addr_t handle, size_t size, enum dma_data_direction dir) { }
+
+static inline void xen_dma_sync_single_for_device(struct device *hwdev,
+		dma_addr_t handle, size_t size, enum dma_data_direction dir) { }
+
 #endif /* _ASM_X86_XEN_PAGE_COHERENT_H */
-- 
cgit 


From 6cf054636261ca5c88f3c2984058d51f927b8a2e Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Fri, 25 Oct 2013 10:33:25 +0000
Subject: swiotlb-xen: use xen_dma_map/unmap_page,
 xen_dma_sync_single_for_cpu/device

Call xen_dma_map_page, xen_dma_unmap_page, xen_dma_sync_single_for_cpu,
xen_dma_sync_single_for_device from swiotlb-xen to ensure cpu/device
coherency of the pages used for DMA, including the ones belonging to the
swiotlb buffer.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
---
 drivers/xen/swiotlb-xen.c | 39 +++++++++++++++++++++++++++++++--------
 1 file changed, 31 insertions(+), 8 deletions(-)

diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 189b8db5c983..4221cb52387d 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -378,8 +378,13 @@ dma_addr_t xen_swiotlb_map_page(struct device *dev, struct page *page,
 	 * buffering it.
 	 */
 	if (dma_capable(dev, dev_addr, size) &&
-	    !range_straddles_page_boundary(phys, size) && !swiotlb_force)
+	    !range_straddles_page_boundary(phys, size) && !swiotlb_force) {
+		/* we are not interested in the dma_addr returned by
+		 * xen_dma_map_page, only in the potential cache flushes executed
+		 * by the function. */
+		xen_dma_map_page(dev, page, offset, size, dir, attrs);
 		return dev_addr;
+	}
 
 	/*
 	 * Oh well, have to allocate and map a bounce buffer.
@@ -388,6 +393,8 @@ dma_addr_t xen_swiotlb_map_page(struct device *dev, struct page *page,
 	if (map == SWIOTLB_MAP_ERROR)
 		return DMA_ERROR_CODE;
 
+	xen_dma_map_page(dev, pfn_to_page(map >> PAGE_SHIFT),
+					map & ~PAGE_MASK, size, dir, attrs);
 	dev_addr = xen_phys_to_bus(map);
 
 	/*
@@ -410,12 +417,15 @@ EXPORT_SYMBOL_GPL(xen_swiotlb_map_page);
  * whatever the device wrote there.
  */
 static void xen_unmap_single(struct device *hwdev, dma_addr_t dev_addr,
-			     size_t size, enum dma_data_direction dir)
+			     size_t size, enum dma_data_direction dir,
+				 struct dma_attrs *attrs)
 {
 	phys_addr_t paddr = xen_bus_to_phys(dev_addr);
 
 	BUG_ON(dir == DMA_NONE);
 
+	xen_dma_unmap_page(hwdev, paddr, size, dir, attrs);
+
 	/* NOTE: We use dev_addr here, not paddr! */
 	if (is_xen_swiotlb_buffer(dev_addr)) {
 		swiotlb_tbl_unmap_single(hwdev, paddr, size, dir);
@@ -438,7 +448,7 @@ void xen_swiotlb_unmap_page(struct device *hwdev, dma_addr_t dev_addr,
 			    size_t size, enum dma_data_direction dir,
 			    struct dma_attrs *attrs)
 {
-	xen_unmap_single(hwdev, dev_addr, size, dir);
+	xen_unmap_single(hwdev, dev_addr, size, dir, attrs);
 }
 EXPORT_SYMBOL_GPL(xen_swiotlb_unmap_page);
 
@@ -461,11 +471,15 @@ xen_swiotlb_sync_single(struct device *hwdev, dma_addr_t dev_addr,
 
 	BUG_ON(dir == DMA_NONE);
 
+	if (target == SYNC_FOR_CPU)
+		xen_dma_sync_single_for_cpu(hwdev, paddr, size, dir);
+
 	/* NOTE: We use dev_addr here, not paddr! */
-	if (is_xen_swiotlb_buffer(dev_addr)) {
+	if (is_xen_swiotlb_buffer(dev_addr))
 		swiotlb_tbl_sync_single(hwdev, paddr, size, dir, target);
-		return;
-	}
+
+	if (target == SYNC_FOR_DEVICE)
+		xen_dma_sync_single_for_cpu(hwdev, paddr, size, dir);
 
 	if (dir != DMA_FROM_DEVICE)
 		return;
@@ -536,8 +550,17 @@ xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
 				return DMA_ERROR_CODE;
 			}
 			sg->dma_address = xen_phys_to_bus(map);
-		} else
+		} else {
+			/* we are not interested in the dma_addr returned by
+			 * xen_dma_map_page, only in the potential cache flushes executed
+			 * by the function. */
+			xen_dma_map_page(hwdev, pfn_to_page(paddr >> PAGE_SHIFT),
+						paddr & ~PAGE_MASK,
+						sg->length,
+						dir,
+						attrs);
 			sg->dma_address = dev_addr;
+		}
 		sg_dma_len(sg) = sg->length;
 	}
 	return nelems;
@@ -559,7 +582,7 @@ xen_swiotlb_unmap_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
 	BUG_ON(dir == DMA_NONE);
 
 	for_each_sg(sgl, sg, nelems, i)
-		xen_unmap_single(hwdev, sg->dma_address, sg_dma_len(sg), dir);
+		xen_unmap_single(hwdev, sg->dma_address, sg_dma_len(sg), dir, attrs);
 
 }
 EXPORT_SYMBOL_GPL(xen_swiotlb_unmap_sg_attrs);
-- 
cgit 


From 783d0281043b9a1111d81d11ed0610b83d8857ed Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Fri, 25 Oct 2013 10:33:26 +0000
Subject: swiotlb: print a warning when the swiotlb is full

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

Changes in v7:
- use dev_warn instead of pr_warn.
---
 drivers/xen/swiotlb-xen.c | 1 +
 lib/swiotlb.c             | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 4221cb52387d..4d50058d9630 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -542,6 +542,7 @@ xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
 								 sg->length,
 								 dir);
 			if (map == SWIOTLB_MAP_ERROR) {
+				dev_warn(hwdev, "swiotlb buffer is full\n");
 				/* Don't panic here, we expect map_sg users
 				   to do proper error handling. */
 				xen_swiotlb_unmap_sg_attrs(hwdev, sgl, i, dir,
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 4e8686c7e5a4..cdc051eaf667 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -502,6 +502,7 @@ phys_addr_t swiotlb_tbl_map_single(struct device *hwdev,
 
 not_found:
 	spin_unlock_irqrestore(&io_tlb_lock, flags);
+	dev_warn(hwdev, "swiotlb buffer is full\n");
 	return SWIOTLB_MAP_ERROR;
 found:
 	spin_unlock_irqrestore(&io_tlb_lock, flags);
-- 
cgit 


From 3d1975b57097820c131c692d2e0d075641370369 Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Fri, 25 Oct 2013 10:33:26 +0000
Subject: arm,arm64: do not always merge biovec if we are running on Xen

This is similar to what it is done on X86: biovecs are prevented from merging
otherwise every dma requests would be forced to bounce on the swiotlb buffer.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>


Changes in v7:
- remove the extra autotranslate check in biomerge.c.
---
 arch/arm/include/asm/io.h   | 8 ++++++++
 arch/arm64/include/asm/io.h | 9 +++++++++
 2 files changed, 17 insertions(+)

diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index d070741b2b37..c45effc18312 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -24,9 +24,11 @@
 #ifdef __KERNEL__
 
 #include <linux/types.h>
+#include <linux/blk_types.h>
 #include <asm/byteorder.h>
 #include <asm/memory.h>
 #include <asm-generic/pci_iomap.h>
+#include <xen/xen.h>
 
 /*
  * ISA I/O bus memory addresses are 1:1 with the physical address.
@@ -372,6 +374,12 @@ extern void pci_iounmap(struct pci_dev *dev, void __iomem *addr);
 #define BIOVEC_MERGEABLE(vec1, vec2)	\
 	((bvec_to_phys((vec1)) + (vec1)->bv_len) == bvec_to_phys((vec2)))
 
+extern bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,
+				      const struct bio_vec *vec2);
+#define BIOVEC_PHYS_MERGEABLE(vec1, vec2)				\
+	(__BIOVEC_PHYS_MERGEABLE(vec1, vec2) &&				\
+	 (!xen_domain() || xen_biovec_phys_mergeable(vec1, vec2)))
+
 #ifdef CONFIG_MMU
 #define ARCH_HAS_VALID_PHYS_ADDR_RANGE
 extern int valid_phys_addr_range(phys_addr_t addr, size_t size);
diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h
index 1d12f89140ba..c163287b9871 100644
--- a/arch/arm64/include/asm/io.h
+++ b/arch/arm64/include/asm/io.h
@@ -22,11 +22,14 @@
 #ifdef __KERNEL__
 
 #include <linux/types.h>
+#include <linux/blk_types.h>
 
 #include <asm/byteorder.h>
 #include <asm/barrier.h>
 #include <asm/pgtable.h>
 
+#include <xen/xen.h>
+
 /*
  * Generic IO read/write.  These perform native-endian accesses.
  */
@@ -263,5 +266,11 @@ extern int devmem_is_allowed(unsigned long pfn);
  */
 #define xlate_dev_kmem_ptr(p)	p
 
+extern bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,
+				      const struct bio_vec *vec2);
+#define BIOVEC_PHYS_MERGEABLE(vec1, vec2)				\
+	(__BIOVEC_PHYS_MERGEABLE(vec1, vec2) &&				\
+	 (!xen_domain() || xen_biovec_phys_mergeable(vec1, vec2)))
+
 #endif	/* __KERNEL__ */
 #endif	/* __ASM_IO_H */
-- 
cgit 


From 3d24bbd7dddbea54358a9795abaf051b0f18973c Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Fri, 25 Oct 2013 10:41:44 +0000
Subject: grant-table: call set_phys_to_machine after mapping grant refs

When mapping/unmapping grant refs, call
set_phys_to_machine to update the P2M with the new mappings for
autotranslate guests.
This is (almost) a nop on x86.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>

Changes in v9:
- add in-code comments.
---
 drivers/xen/grant-table.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index c4d2298893b1..62ccf5424ba8 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -49,6 +49,7 @@
 #include <xen/grant_table.h>
 #include <xen/interface/memory.h>
 #include <xen/hvc-console.h>
+#include <xen/swiotlb-xen.h>
 #include <asm/xen/hypercall.h>
 #include <asm/xen/interface.h>
 
@@ -898,8 +899,16 @@ int gnttab_map_refs(struct gnttab_map_grant_ref *map_ops,
 			gnttab_retry_eagain_gop(GNTTABOP_map_grant_ref, map_ops + i,
 						&map_ops[i].status, __func__);
 
-	if (xen_feature(XENFEAT_auto_translated_physmap))
+	/* this is basically a nop on x86 */
+	if (xen_feature(XENFEAT_auto_translated_physmap)) {
+		for (i = 0; i < count; i++) {
+			if (map_ops[i].status)
+				continue;
+			set_phys_to_machine(map_ops[i].host_addr >> PAGE_SHIFT,
+					map_ops[i].dev_bus_addr >> PAGE_SHIFT);
+		}
 		return ret;
+	}
 
 	if (!in_interrupt() && paravirt_get_lazy_mode() == PARAVIRT_LAZY_NONE) {
 		arch_enter_lazy_mmu_mode();
@@ -942,8 +951,14 @@ int gnttab_unmap_refs(struct gnttab_unmap_grant_ref *unmap_ops,
 	if (ret)
 		return ret;
 
-	if (xen_feature(XENFEAT_auto_translated_physmap))
+	/* this is basically a nop on x86 */
+	if (xen_feature(XENFEAT_auto_translated_physmap)) {
+		for (i = 0; i < count; i++) {
+			set_phys_to_machine(unmap_ops[i].host_addr >> PAGE_SHIFT,
+					INVALID_P2M_ENTRY);
+		}
 		return ret;
+	}
 
 	if (!in_interrupt() && paravirt_get_lazy_mode() == PARAVIRT_LAZY_NONE) {
 		arch_enter_lazy_mmu_mode();
-- 
cgit 


From 6b42a7eafb25ae9fda1708c501661384d1f60482 Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Fri, 25 Oct 2013 10:33:27 +0000
Subject: swiotlb-xen: static inline xen_phys_to_bus, xen_bus_to_phys,
 xen_virt_to_bus and range_straddles_page_boundary

This functions are small and called frequently. Static inline them.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
---
 drivers/xen/swiotlb-xen.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 4d50058d9630..100962dcc7bb 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -72,17 +72,17 @@ static unsigned long xen_io_tlb_nslabs;
 
 static u64 start_dma_addr;
 
-static dma_addr_t xen_phys_to_bus(phys_addr_t paddr)
+static inline dma_addr_t xen_phys_to_bus(phys_addr_t paddr)
 {
 	return phys_to_machine(XPADDR(paddr)).maddr;
 }
 
-static phys_addr_t xen_bus_to_phys(dma_addr_t baddr)
+static inline phys_addr_t xen_bus_to_phys(dma_addr_t baddr)
 {
 	return machine_to_phys(XMADDR(baddr)).paddr;
 }
 
-static dma_addr_t xen_virt_to_bus(void *address)
+static inline dma_addr_t xen_virt_to_bus(void *address)
 {
 	return xen_phys_to_bus(virt_to_phys(address));
 }
@@ -105,7 +105,7 @@ static int check_pages_physically_contiguous(unsigned long pfn,
 	return 1;
 }
 
-static int range_straddles_page_boundary(phys_addr_t p, size_t size)
+static inline int range_straddles_page_boundary(phys_addr_t p, size_t size)
 {
 	unsigned long pfn = PFN_DOWN(p);
 	unsigned int offset = p & ~PAGE_MASK;
-- 
cgit 


From 1f8c88c3b52ffd424ca76f80d1ed78639c532aef Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Wed, 23 Oct 2013 10:51:15 +0200
Subject: [SCSI] dpt_i2o: Remove DPTI_STATE_IOCTL

scsi_block_host/scsi_unlock_host provides the required
functionality.

[jejb: checkpatch fixes]
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/dpt_i2o.c | 30 ++++++++++++------------------
 drivers/scsi/dpti.h    |  1 -
 2 files changed, 12 insertions(+), 19 deletions(-)

diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index 19e1b422260a..d13517dd0c19 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -448,15 +448,7 @@ static int adpt_queue_lck(struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd
 	}
 
 	rmb();
-	/*
-	 * TODO: I need to block here if I am processing ioctl cmds
-	 * but if the outstanding cmds all finish before the ioctl,
-	 * the scsi-core will not know to start sending cmds to me again.
-	 * I need to a way to restart the scsi-cores queues or should I block
-	 * calling scsi_done on the outstanding cmds instead
-	 * for now we don't set the IOCTL state
-	 */
-	if(((pHba->state) & DPTI_STATE_IOCTL) || ((pHba->state) & DPTI_STATE_RESET)) {
+	if ((pHba->state) & DPTI_STATE_RESET) {
 		pHba->host->last_reset = jiffies;
 		pHba->host->resetting = 1;
 		return 1;
@@ -1811,21 +1803,23 @@ static int adpt_i2o_passthru(adpt_hba* pHba, u32 __user *arg)
 	}
 
 	do {
-		if(pHba->host)
+		/*
+		 * Stop any new commands from enterring the
+		 * controller while processing the ioctl
+		 */
+		if (pHba->host) {
+			scsi_block_requests(pHba->host);
 			spin_lock_irqsave(pHba->host->host_lock, flags);
-		// This state stops any new commands from enterring the
-		// controller while processing the ioctl
-//		pHba->state |= DPTI_STATE_IOCTL;
-//		We can't set this now - The scsi subsystem sets host_blocked and
-//		the queue empties and stops.  We need a way to restart the queue
+		}
 		rcode = adpt_i2o_post_wait(pHba, msg, size, FOREVER);
 		if (rcode != 0)
 			printk("adpt_i2o_passthru: post wait failed %d %p\n",
 					rcode, reply);
-//		pHba->state &= ~DPTI_STATE_IOCTL;
-		if(pHba->host)
+		if (pHba->host) {
 			spin_unlock_irqrestore(pHba->host->host_lock, flags);
-	} while(rcode == -ETIMEDOUT);  
+			scsi_unblock_requests(pHba->host);
+		}
+	} while (rcode == -ETIMEDOUT);
 
 	if(rcode){
 		goto cleanup;
diff --git a/drivers/scsi/dpti.h b/drivers/scsi/dpti.h
index beded716f93f..aeb046186c84 100644
--- a/drivers/scsi/dpti.h
+++ b/drivers/scsi/dpti.h
@@ -202,7 +202,6 @@ struct adpt_channel {
 
 // HBA state flags
 #define DPTI_STATE_RESET	(0x01)
-#define DPTI_STATE_IOCTL	(0x02)
 
 typedef struct _adpt_hba {
 	struct _adpt_hba *next;
-- 
cgit 


From 63d80c49baa956d871136d8d4afb7900eb4a6cc9 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Wed, 23 Oct 2013 10:51:16 +0200
Subject: [SCSI] dpt_i2o: return SCSI_MLQUEUE_HOST_BUSY when in reset

When the HBA is in reset we should be returning 'busy' and not
rely on the obscure 'last_reset' feature.

[jejb: checkpatch fixes]
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/dpt_i2o.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c
index d13517dd0c19..c0ae8fa57a3b 100644
--- a/drivers/scsi/dpt_i2o.c
+++ b/drivers/scsi/dpt_i2o.c
@@ -448,11 +448,8 @@ static int adpt_queue_lck(struct scsi_cmnd * cmd, void (*done) (struct scsi_cmnd
 	}
 
 	rmb();
-	if ((pHba->state) & DPTI_STATE_RESET) {
-		pHba->host->last_reset = jiffies;
-		pHba->host->resetting = 1;
-		return 1;
-	}
+	if ((pHba->state) & DPTI_STATE_RESET)
+		return SCSI_MLQUEUE_HOST_BUSY;
 
 	// TODO if the cmd->device if offline then I may need to issue a bus rescan
 	// followed by a get_lct to see if the device is there anymore
-- 
cgit 


From 50d14a70fb284f5dcbc9e6f135b110c78786d07c Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Wed, 23 Oct 2013 10:51:17 +0200
Subject: [SCSI] advansys: Remove 'last_reset' references

Serves no purpose whatsoever.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/advansys.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/advansys.c b/drivers/scsi/advansys.c
index c67e401954c5..d8145888e66a 100644
--- a/drivers/scsi/advansys.c
+++ b/drivers/scsi/advansys.c
@@ -2511,8 +2511,8 @@ static void asc_prt_scsi_host(struct Scsi_Host *s)
 	struct asc_board *boardp = shost_priv(s);
 
 	printk("Scsi_Host at addr 0x%p, device %s\n", s, dev_name(boardp->dev));
-	printk(" host_busy %u, host_no %d, last_reset %d,\n",
-	       s->host_busy, s->host_no, (unsigned)s->last_reset);
+	printk(" host_busy %u, host_no %d,\n",
+	       s->host_busy, s->host_no);
 
 	printk(" base 0x%lx, io_port 0x%lx, irq %d,\n",
 	       (ulong)s->base, (ulong)s->io_port, boardp->irq);
@@ -3345,8 +3345,8 @@ static void asc_prt_driver_conf(struct seq_file *m, struct Scsi_Host *shost)
 		shost->host_no);
 
 	seq_printf(m,
-		   " host_busy %u, last_reset %lu, max_id %u, max_lun %u, max_channel %u\n",
-		   shost->host_busy, shost->last_reset, shost->max_id,
+		   " host_busy %u, max_id %u, max_lun %u, max_channel %u\n",
+		   shost->host_busy, shost->max_id,
 		   shost->max_lun, shost->max_channel);
 
 	seq_printf(m,
-- 
cgit 


From 6d9153bbce50d41802ad2e20ce52daf699a3e8ad Mon Sep 17 00:00:00 2001
From: Lan Tianyu <tianyu.lan@intel.com>
Date: Thu, 24 Oct 2013 15:11:33 +0800
Subject: x86/reboot: Correct pr_info() log message in the
 set_bios/pci/kbd_reboot()

commit:

  c767a54ba065 x86/debug: Add KERN_<LEVEL> to bare printks, convert printks to pr_<level>

broke the log messages in the set_bios/pci/kbd_reboot() functions, by
putting the reboot method string and quirk entry's ident string in the
wrong order. This patch fixes it.

Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Cc: holt@sgi.com
Cc: davej@fedoraproject.org
Cc: lenb@kernel.org
Cc: rjw@rjwysocki.net
Cc: awilliam@redhat.com
Link: http://lkml.kernel.org/r/1382598693-29334-1-git-send-email-tianyu.lan@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/reboot.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 76925208f50b..da1fe1c0590b 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -61,7 +61,7 @@ static int __init set_bios_reboot(const struct dmi_system_id *d)
 	if (reboot_type != BOOT_BIOS) {
 		reboot_type = BOOT_BIOS;
 		pr_info("%s series board detected. Selecting %s-method for reboots.\n",
-			"BIOS", d->ident);
+			d->ident, "BIOS");
 	}
 	return 0;
 }
@@ -117,7 +117,7 @@ static int __init set_pci_reboot(const struct dmi_system_id *d)
 	if (reboot_type != BOOT_CF9) {
 		reboot_type = BOOT_CF9;
 		pr_info("%s series board detected. Selecting %s-method for reboots.\n",
-			"PCI", d->ident);
+			d->ident, "PCI");
 	}
 	return 0;
 }
@@ -127,7 +127,7 @@ static int __init set_kbd_reboot(const struct dmi_system_id *d)
 	if (reboot_type != BOOT_KBD) {
 		reboot_type = BOOT_KBD;
 		pr_info("%s series board detected. Selecting %s-method for reboot.\n",
-			"KBD", d->ident);
+			d->ident, "KBD");
 	}
 	return 0;
 }
-- 
cgit 


From f274a02e52213bbeaf02adfea5f27aaed8a696c8 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Wed, 23 Oct 2013 10:51:18 +0200
Subject: [SCSI] tmscsim: Move 'last_reset' into host structure

The 'last_reset' value is only used internally, so move it into
the internal host structure.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/tmscsim.c | 14 +++++++-------
 drivers/scsi/tmscsim.h |  1 +
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/tmscsim.c b/drivers/scsi/tmscsim.c
index 9327f5fcec4e..11423615c2ea 100644
--- a/drivers/scsi/tmscsim.c
+++ b/drivers/scsi/tmscsim.c
@@ -521,7 +521,7 @@ dc390_StartSCSI( struct dc390_acb* pACB, struct dc390_dcb* pDCB, struct dc390_sr
 	pACB->SelConn++;
 	return 1;
     }
-    if (time_before (jiffies, pACB->pScsiHost->last_reset))
+    if (time_before (jiffies, pACB->last_reset))
     {
 	DEBUG0(printk ("DC390: We were just reset and don't accept commands yet!\n"));
 	return 1;
@@ -1863,7 +1863,7 @@ dc390_ScsiRstDetect( struct dc390_acb* pACB )
     /* delay half a second */
     udelay (1000);
     DC390_write8 (ScsiCmd, CLEAR_FIFO_CMD);
-    pACB->pScsiHost->last_reset = jiffies + 5*HZ/2
+    pACB->last_reset = jiffies + 5*HZ/2
 		    + HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY];
     pACB->Connected = 0;
 
@@ -2048,9 +2048,9 @@ static int DC390_bus_reset (struct scsi_cmnd *cmd)
 
 	dc390_ResetDevParam(pACB);
 	mdelay(1);
-	pACB->pScsiHost->last_reset = jiffies + 3*HZ/2 
+	pACB->last_reset = jiffies + 3*HZ/2
 		+ HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY];
-    
+
 	DC390_write8(ScsiCmd, CLEAR_FIFO_CMD);
 	DC390_read8(INT_Status);		/* Reset Pending INT */
 
@@ -2383,7 +2383,7 @@ static void dc390_init_hw(struct dc390_acb *pACB, u8 index)
 	if (pACB->Gmode2 & RST_SCSI_BUS) {
 		dc390_ResetSCSIBus(pACB);
 		udelay(1000);
-		shost->last_reset = jiffies + HZ/2 +
+		pACB->last_reset = jiffies + HZ/2 +
 			HZ * dc390_eepromBuf[pACB->AdapterIndex][EE_DELAY];
 	}
 
@@ -2455,8 +2455,8 @@ static int dc390_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	shost->irq = pdev->irq;
 	shost->base = io_port;
 	shost->unique_id = io_port;
-	shost->last_reset = jiffies;
-	
+
+	pACB->last_reset = jiffies;
 	pACB->pScsiHost = shost;
 	pACB->IOPortBase = (u16) io_port;
 	pACB->IRQLevel = pdev->irq;
diff --git a/drivers/scsi/tmscsim.h b/drivers/scsi/tmscsim.h
index 77adc54dbd16..3d1bb4ad1826 100644
--- a/drivers/scsi/tmscsim.h
+++ b/drivers/scsi/tmscsim.h
@@ -143,6 +143,7 @@ u8		Ignore_IRQ;	/* Not used */
 
 struct pci_dev	*pdev;
 
+unsigned long   last_reset;
 unsigned long	Cmds;
 u32		SelLost;
 u32		SelConn;
-- 
cgit 


From 53a8936cb5bc95b7616cfa9e45d6145c630cea1d Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Wed, 23 Oct 2013 10:51:19 +0200
Subject: [SCSI] dc395: Move 'last_reset' into internal host structure

'last_reset' is only used internally, so move it into the
internal host structure.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/dc395x.c | 24 +++++++++++++-----------
 1 file changed, 13 insertions(+), 11 deletions(-)

diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c
index 694e13c45dfd..42e8624a9b9a 100644
--- a/drivers/scsi/dc395x.c
+++ b/drivers/scsi/dc395x.c
@@ -308,6 +308,8 @@ struct AdapterCtlBlk {
 	struct timer_list waiting_timer;
 	struct timer_list selto_timer;
 
+	unsigned long last_reset;
+
 	u16 srb_count;
 
 	u8 sel_timeout;
@@ -860,9 +862,9 @@ static void waiting_set_timer(struct AdapterCtlBlk *acb, unsigned long to)
 	init_timer(&acb->waiting_timer);
 	acb->waiting_timer.function = waiting_timeout;
 	acb->waiting_timer.data = (unsigned long) acb;
-	if (time_before(jiffies + to, acb->scsi_host->last_reset - HZ / 2))
+	if (time_before(jiffies + to, acb->last_reset - HZ / 2))
 		acb->waiting_timer.expires =
-		    acb->scsi_host->last_reset - HZ / 2 + 1;
+		    acb->last_reset - HZ / 2 + 1;
 	else
 		acb->waiting_timer.expires = jiffies + to + 1;
 	add_timer(&acb->waiting_timer);
@@ -1319,7 +1321,7 @@ static int __dc395x_eh_bus_reset(struct scsi_cmnd *cmd)
 	udelay(500);
 
 	/* We may be in serious trouble. Wait some seconds */
-	acb->scsi_host->last_reset =
+	acb->last_reset =
 	    jiffies + 3 * HZ / 2 +
 	    HZ * acb->eeprom.delay_time;
 
@@ -1462,9 +1464,9 @@ static void selto_timer(struct AdapterCtlBlk *acb)
 	acb->selto_timer.function = selection_timeout_missed;
 	acb->selto_timer.data = (unsigned long) acb;
 	if (time_before
-	    (jiffies + HZ, acb->scsi_host->last_reset + HZ / 2))
+	    (jiffies + HZ, acb->last_reset + HZ / 2))
 		acb->selto_timer.expires =
-		    acb->scsi_host->last_reset + HZ / 2 + 1;
+		    acb->last_reset + HZ / 2 + 1;
 	else
 		acb->selto_timer.expires = jiffies + HZ + 1;
 	add_timer(&acb->selto_timer);
@@ -1535,7 +1537,7 @@ static u8 start_scsi(struct AdapterCtlBlk* acb, struct DeviceCtlBlk* dcb,
 	}
 	/* Allow starting of SCSI commands half a second before we allow the mid-level
 	 * to queue them again after a reset */
-	if (time_before(jiffies, acb->scsi_host->last_reset - HZ / 2)) {
+	if (time_before(jiffies, acb->last_reset - HZ / 2)) {
 		dprintkdbg(DBG_KG, "start_scsi: Refuse cmds (reset wait)\n");
 		return 1;
 	}
@@ -3031,7 +3033,7 @@ static void disconnect(struct AdapterCtlBlk *acb)
 		dprintkl(KERN_ERR, "disconnect: No such device\n");
 		udelay(500);
 		/* Suspend queue for a while */
-		acb->scsi_host->last_reset =
+		acb->last_reset =
 		    jiffies + HZ / 2 +
 		    HZ * acb->eeprom.delay_time;
 		clear_fifo(acb, "disconnectEx");
@@ -3053,7 +3055,7 @@ static void disconnect(struct AdapterCtlBlk *acb)
 		waiting_process_next(acb);
 	} else if (srb->state & SRB_ABORT_SENT) {
 		dcb->flag &= ~ABORT_DEV_;
-		acb->scsi_host->last_reset = jiffies + HZ / 2 + 1;
+		acb->last_reset = jiffies + HZ / 2 + 1;
 		dprintkl(KERN_ERR, "disconnect: SRB_ABORT_SENT\n");
 		doing_srb_done(acb, DID_ABORT, srb->cmd, 1);
 		waiting_process_next(acb);
@@ -3649,7 +3651,7 @@ static void scsi_reset_detect(struct AdapterCtlBlk *acb)
 	/*DC395x_write8(acb, TRM_S1040_DMA_CONTROL,STOPDMAXFER); */
 	udelay(500);
 	/* Maybe we locked up the bus? Then lets wait even longer ... */
-	acb->scsi_host->last_reset =
+	acb->last_reset =
 	    jiffies + 5 * HZ / 2 +
 	    HZ * acb->eeprom.delay_time;
 
@@ -4426,7 +4428,7 @@ static void adapter_init_scsi_host(struct Scsi_Host *host)
 	host->dma_channel = -1;
 	host->unique_id = acb->io_port_base;
 	host->irq = acb->irq_level;
-	host->last_reset = jiffies;
+	acb->last_reset = jiffies;
 
 	host->max_id = 16;
 	if (host->max_id - 1 == eeprom->scsi_id)
@@ -4484,7 +4486,7 @@ static void adapter_init_chip(struct AdapterCtlBlk *acb)
 		/*spin_unlock_irq (&io_request_lock); */
 		udelay(500);
 
-		acb->scsi_host->last_reset =
+		acb->last_reset =
 		    jiffies + HZ / 2 +
 		    HZ * acb->eeprom.delay_time;
 
-- 
cgit 


From e3daab6ce467199ffea12fc1b2df8f61335ce1ca Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Fri, 25 Oct 2013 11:45:35 +0100
Subject: smp: export __smp_call_function_single()

The blk-mq core and the blk-mq null driver uses it.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 kernel/smp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/smp.c b/kernel/smp.c
index 0564571dcdf7..46d3d0b48a8d 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -340,6 +340,7 @@ void __smp_call_function_single(int cpu, struct call_single_data *csd,
 	}
 	put_cpu();
 }
+EXPORT_SYMBOL_GPL(__smp_call_function_single);
 
 /**
  * smp_call_function_many(): Run a function on a set of other CPUs.
-- 
cgit 


From c84a83e2aaab02a5ca64a982aa55342784934479 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Fri, 17 May 2013 09:58:43 +0200
Subject: smp: don't warn about csd->flags having CSD_FLAG_LOCK cleared for
 !wait

blk-mq reuses the request potentially immediately, since the most
cache hot is always given out first. This means that rq->csd could
be reused between csd->func() being called and csd_unlock() being
called. This isn't a problem, since we never use wait == 1 for
the smp call function. Add CSD_FLAG_WAIT to be able to tell the
difference, retaining the warning for other cases.

Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 kernel/smp.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/kernel/smp.c b/kernel/smp.c
index 46d3d0b48a8d..dbc3d42d2c68 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -18,6 +18,7 @@
 #ifdef CONFIG_USE_GENERIC_SMP_HELPERS
 enum {
 	CSD_FLAG_LOCK		= 0x01,
+	CSD_FLAG_WAIT		= 0x02,
 };
 
 struct call_function_data {
@@ -124,7 +125,7 @@ static void csd_lock(struct call_single_data *csd)
 
 static void csd_unlock(struct call_single_data *csd)
 {
-	WARN_ON(!(csd->flags & CSD_FLAG_LOCK));
+	WARN_ON((csd->flags & CSD_FLAG_WAIT) && !(csd->flags & CSD_FLAG_LOCK));
 
 	/*
 	 * ensure we're all done before releasing data:
@@ -146,6 +147,9 @@ void generic_exec_single(int cpu, struct call_single_data *csd, int wait)
 	unsigned long flags;
 	int ipi;
 
+	if (wait)
+		csd->flags |= CSD_FLAG_WAIT;
+
 	raw_spin_lock_irqsave(&dst->lock, flags);
 	ipi = list_empty(&dst->list);
 	list_add_tail(&csd->list, &dst->list);
-- 
cgit 


From 5953316dbf90067ebdeca626c34488bc166b73a8 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Thu, 23 May 2013 12:25:08 +0200
Subject: block: make rq->cmd_flags be 64-bit

We have officially run out of flags in a 32-bit space. Extend it
to 64-bit even on 32-bit archs.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-core.c          |  4 +--
 drivers/block/floppy.c    |  4 +--
 drivers/scsi/sd.c         |  2 +-
 include/linux/blk_types.h | 66 +++++++++++++++++++++++------------------------
 include/linux/blkdev.h    |  4 +--
 5 files changed, 40 insertions(+), 40 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index 0a00e4ecf87c..213e9f01c627 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -174,9 +174,9 @@ void blk_dump_rq_flags(struct request *rq, char *msg)
 {
 	int bit;
 
-	printk(KERN_INFO "%s: dev %s: type=%x, flags=%x\n", msg,
+	printk(KERN_INFO "%s: dev %s: type=%x, flags=%llx\n", msg,
 		rq->rq_disk ? rq->rq_disk->disk_name : "?", rq->cmd_type,
-		rq->cmd_flags);
+		(unsigned long long) rq->cmd_flags);
 
 	printk(KERN_INFO "  sector %llu, nr/cnr %u/%u\n",
 	       (unsigned long long)blk_rq_pos(rq),
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c
index 04ceb7e2fadd..000abe2f105c 100644
--- a/drivers/block/floppy.c
+++ b/drivers/block/floppy.c
@@ -2886,9 +2886,9 @@ static void do_fd_request(struct request_queue *q)
 		return;
 
 	if (WARN(atomic_read(&usage_count) == 0,
-		 "warning: usage count=0, current_req=%p sect=%ld type=%x flags=%x\n",
+		 "warning: usage count=0, current_req=%p sect=%ld type=%x flags=%llx\n",
 		 current_req, (long)blk_rq_pos(current_req), current_req->cmd_type,
-		 current_req->cmd_flags))
+		 (unsigned long long) current_req->cmd_flags))
 		return;
 
 	if (test_and_set_bit(0, &fdc_busy)) {
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index e62d17d41d4e..dae6133a538d 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -1002,7 +1002,7 @@ static int sd_prep_fn(struct request_queue *q, struct request *rq)
 		SCpnt->cmnd[0] = READ_6;
 		SCpnt->sc_data_direction = DMA_FROM_DEVICE;
 	} else {
-		scmd_printk(KERN_ERR, SCpnt, "Unknown command %x\n", rq->cmd_flags);
+		scmd_printk(KERN_ERR, SCpnt, "Unknown command %llx\n", (unsigned long long) rq->cmd_flags);
 		goto out;
 	}
 
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index fa1abeb45b76..c26801e14788 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -181,16 +181,16 @@ enum rq_flag_bits {
 	__REQ_NR_BITS,		/* stops here */
 };
 
-#define REQ_WRITE		(1 << __REQ_WRITE)
-#define REQ_FAILFAST_DEV	(1 << __REQ_FAILFAST_DEV)
-#define REQ_FAILFAST_TRANSPORT	(1 << __REQ_FAILFAST_TRANSPORT)
-#define REQ_FAILFAST_DRIVER	(1 << __REQ_FAILFAST_DRIVER)
-#define REQ_SYNC		(1 << __REQ_SYNC)
-#define REQ_META		(1 << __REQ_META)
-#define REQ_PRIO		(1 << __REQ_PRIO)
-#define REQ_DISCARD		(1 << __REQ_DISCARD)
-#define REQ_WRITE_SAME		(1 << __REQ_WRITE_SAME)
-#define REQ_NOIDLE		(1 << __REQ_NOIDLE)
+#define REQ_WRITE		(1ULL << __REQ_WRITE)
+#define REQ_FAILFAST_DEV	(1ULL << __REQ_FAILFAST_DEV)
+#define REQ_FAILFAST_TRANSPORT	(1ULL << __REQ_FAILFAST_TRANSPORT)
+#define REQ_FAILFAST_DRIVER	(1ULL << __REQ_FAILFAST_DRIVER)
+#define REQ_SYNC		(1ULL << __REQ_SYNC)
+#define REQ_META		(1ULL << __REQ_META)
+#define REQ_PRIO		(1ULL << __REQ_PRIO)
+#define REQ_DISCARD		(1ULL << __REQ_DISCARD)
+#define REQ_WRITE_SAME		(1ULL << __REQ_WRITE_SAME)
+#define REQ_NOIDLE		(1ULL << __REQ_NOIDLE)
 
 #define REQ_FAILFAST_MASK \
 	(REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT | REQ_FAILFAST_DRIVER)
@@ -206,28 +206,28 @@ enum rq_flag_bits {
 #define REQ_NOMERGE_FLAGS \
 	(REQ_NOMERGE | REQ_STARTED | REQ_SOFTBARRIER | REQ_FLUSH | REQ_FUA)
 
-#define REQ_RAHEAD		(1 << __REQ_RAHEAD)
-#define REQ_THROTTLED		(1 << __REQ_THROTTLED)
-
-#define REQ_SORTED		(1 << __REQ_SORTED)
-#define REQ_SOFTBARRIER		(1 << __REQ_SOFTBARRIER)
-#define REQ_FUA			(1 << __REQ_FUA)
-#define REQ_NOMERGE		(1 << __REQ_NOMERGE)
-#define REQ_STARTED		(1 << __REQ_STARTED)
-#define REQ_DONTPREP		(1 << __REQ_DONTPREP)
-#define REQ_QUEUED		(1 << __REQ_QUEUED)
-#define REQ_ELVPRIV		(1 << __REQ_ELVPRIV)
-#define REQ_FAILED		(1 << __REQ_FAILED)
-#define REQ_QUIET		(1 << __REQ_QUIET)
-#define REQ_PREEMPT		(1 << __REQ_PREEMPT)
-#define REQ_ALLOCED		(1 << __REQ_ALLOCED)
-#define REQ_COPY_USER		(1 << __REQ_COPY_USER)
-#define REQ_FLUSH		(1 << __REQ_FLUSH)
-#define REQ_FLUSH_SEQ		(1 << __REQ_FLUSH_SEQ)
-#define REQ_IO_STAT		(1 << __REQ_IO_STAT)
-#define REQ_MIXED_MERGE		(1 << __REQ_MIXED_MERGE)
-#define REQ_SECURE		(1 << __REQ_SECURE)
-#define REQ_KERNEL		(1 << __REQ_KERNEL)
-#define REQ_PM			(1 << __REQ_PM)
+#define REQ_RAHEAD		(1ULL << __REQ_RAHEAD)
+#define REQ_THROTTLED		(1ULL << __REQ_THROTTLED)
+
+#define REQ_SORTED		(1ULL << __REQ_SORTED)
+#define REQ_SOFTBARRIER		(1ULL << __REQ_SOFTBARRIER)
+#define REQ_FUA			(1ULL << __REQ_FUA)
+#define REQ_NOMERGE		(1ULL << __REQ_NOMERGE)
+#define REQ_STARTED		(1ULL << __REQ_STARTED)
+#define REQ_DONTPREP		(1ULL << __REQ_DONTPREP)
+#define REQ_QUEUED		(1ULL << __REQ_QUEUED)
+#define REQ_ELVPRIV		(1ULL << __REQ_ELVPRIV)
+#define REQ_FAILED		(1ULL << __REQ_FAILED)
+#define REQ_QUIET		(1ULL << __REQ_QUIET)
+#define REQ_PREEMPT		(1ULL << __REQ_PREEMPT)
+#define REQ_ALLOCED		(1ULL << __REQ_ALLOCED)
+#define REQ_COPY_USER		(1ULL << __REQ_COPY_USER)
+#define REQ_FLUSH		(1ULL << __REQ_FLUSH)
+#define REQ_FLUSH_SEQ		(1ULL << __REQ_FLUSH_SEQ)
+#define REQ_IO_STAT		(1ULL << __REQ_IO_STAT)
+#define REQ_MIXED_MERGE		(1ULL << __REQ_MIXED_MERGE)
+#define REQ_SECURE		(1ULL << __REQ_SECURE)
+#define REQ_KERNEL		(1ULL << __REQ_KERNEL)
+#define REQ_PM			(1ULL << __REQ_PM)
 
 #endif /* __LINUX_BLK_TYPES_H */
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 0e6f765aa1f5..f5c7596c93dd 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -99,7 +99,7 @@ struct request {
 
 	struct request_queue *q;
 
-	unsigned int cmd_flags;
+	u64 cmd_flags;
 	enum rq_cmd_type_bits cmd_type;
 	unsigned long atomic_flags;
 
@@ -570,7 +570,7 @@ static inline void queue_flag_clear(unsigned int flag, struct request_queue *q)
 
 #define list_entry_rq(ptr)	list_entry((ptr), struct request, queuelist)
 
-#define rq_data_dir(rq)		((rq)->cmd_flags & 1)
+#define rq_data_dir(rq)		(((rq)->cmd_flags & 1) != 0)
 
 static inline unsigned int blk_queue_cluster(struct request_queue *q)
 {
-- 
cgit 


From 71fe07d040626de7b72244bf6de889c2e0f5aea3 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Fri, 4 Oct 2013 06:49:11 -0700
Subject: block: remove request ref_count

This reference count has been around since before git history, but the only
place where it's used is in blk_execute_rq, and ther it is entirely useless
as it is incremented before submitting the request and decremented in the
end_io handler before waking up the submitter thread.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-core.c       | 3 ---
 block/blk-exec.c       | 7 -------
 include/linux/blkdev.h | 2 --
 3 files changed, 12 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index 213e9f01c627..18faa7e81d3b 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -145,7 +145,6 @@ void blk_rq_init(struct request_queue *q, struct request *rq)
 	rq->cmd = rq->__cmd;
 	rq->cmd_len = BLK_MAX_CDB;
 	rq->tag = -1;
-	rq->ref_count = 1;
 	rq->start_time = jiffies;
 	set_start_time_ns(rq);
 	rq->part = NULL;
@@ -1272,8 +1271,6 @@ void __blk_put_request(struct request_queue *q, struct request *req)
 {
 	if (unlikely(!q))
 		return;
-	if (unlikely(--req->ref_count))
-		return;
 
 	blk_pm_put_request(req);
 
diff --git a/block/blk-exec.c b/block/blk-exec.c
index ae4f27d7944e..6b18d82d91c5 100644
--- a/block/blk-exec.c
+++ b/block/blk-exec.c
@@ -24,7 +24,6 @@ static void blk_end_sync_rq(struct request *rq, int error)
 	struct completion *waiting = rq->end_io_data;
 
 	rq->end_io_data = NULL;
-	__blk_put_request(rq->q, rq);
 
 	/*
 	 * complete last, if this is a stack request the process (and thus
@@ -103,12 +102,6 @@ int blk_execute_rq(struct request_queue *q, struct gendisk *bd_disk,
 	int err = 0;
 	unsigned long hang_check;
 
-	/*
-	 * we need an extra reference to the request, so we can look at
-	 * it after io completion
-	 */
-	rq->ref_count++;
-
 	if (!rq->sense) {
 		memset(sense, 0, sizeof(sense));
 		rq->sense = sense;
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index f5c7596c93dd..0a8da96274c3 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -160,8 +160,6 @@ struct request {
 
 	unsigned short ioprio;
 
-	int ref_count;
-
 	void *special;		/* opaque pointer available for LLD use */
 	char *buffer;		/* kaddr of the current segment if available */
 
-- 
cgit 


From 098faf5805c80f951ce5e8b4a6842382ad793c38 Mon Sep 17 00:00:00 2001
From: Shaohua Li <shli@fusionio.com>
Date: Thu, 24 Oct 2013 09:06:45 +0100
Subject: percpu_counter: make APIs irq safe

In my usage, sometimes the percpu APIs are called with irq locked,
sometimes not. lockdep complains there is potential deadlock. Let's
always use percpucounter lock in irq safe way. There should be no
performance penality, as all those are slow code path.

Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 lib/percpu_counter.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/lib/percpu_counter.c b/lib/percpu_counter.c
index 93c5d5ecff4e..7473ee3b4ee7 100644
--- a/lib/percpu_counter.c
+++ b/lib/percpu_counter.c
@@ -60,14 +60,15 @@ static inline void debug_percpu_counter_deactivate(struct percpu_counter *fbc)
 void percpu_counter_set(struct percpu_counter *fbc, s64 amount)
 {
 	int cpu;
+	unsigned long flags;
 
-	raw_spin_lock(&fbc->lock);
+	raw_spin_lock_irqsave(&fbc->lock, flags);
 	for_each_possible_cpu(cpu) {
 		s32 *pcount = per_cpu_ptr(fbc->counters, cpu);
 		*pcount = 0;
 	}
 	fbc->count = amount;
-	raw_spin_unlock(&fbc->lock);
+	raw_spin_unlock_irqrestore(&fbc->lock, flags);
 }
 EXPORT_SYMBOL(percpu_counter_set);
 
@@ -78,9 +79,10 @@ void __percpu_counter_add(struct percpu_counter *fbc, s64 amount, s32 batch)
 	preempt_disable();
 	count = __this_cpu_read(*fbc->counters) + amount;
 	if (count >= batch || count <= -batch) {
-		raw_spin_lock(&fbc->lock);
+		unsigned long flags;
+		raw_spin_lock_irqsave(&fbc->lock, flags);
 		fbc->count += count;
-		raw_spin_unlock(&fbc->lock);
+		raw_spin_unlock_irqrestore(&fbc->lock, flags);
 		__this_cpu_write(*fbc->counters, 0);
 	} else {
 		__this_cpu_write(*fbc->counters, count);
@@ -97,14 +99,15 @@ s64 __percpu_counter_sum(struct percpu_counter *fbc)
 {
 	s64 ret;
 	int cpu;
+	unsigned long flags;
 
-	raw_spin_lock(&fbc->lock);
+	raw_spin_lock_irqsave(&fbc->lock, flags);
 	ret = fbc->count;
 	for_each_online_cpu(cpu) {
 		s32 *pcount = per_cpu_ptr(fbc->counters, cpu);
 		ret += *pcount;
 	}
-	raw_spin_unlock(&fbc->lock);
+	raw_spin_unlock_irqrestore(&fbc->lock, flags);
 	return ret;
 }
 EXPORT_SYMBOL(__percpu_counter_sum);
-- 
cgit 


From e26b53d0b287056646a0dffce8bc6b0f053f3823 Mon Sep 17 00:00:00 2001
From: Shaohua Li <shli@kernel.org>
Date: Tue, 15 Oct 2013 09:05:01 +0800
Subject: percpu_ida: make percpu_ida percpu size/batch configurable

Make percpu_ida percpu size/batch configurable. The block-mq-tag will
use it.

After block-mq uses percpu_ida to manage tags, performance is improved.
My test is done in a 2 sockets machine, 12 process cross the 2 sockets.
So if there is lock contention or ipi, should be stressed heavily.
Testing is done for null-blk.

hw_queue_depth	nopatch iops	patch iops
64		~800k/s		~1470k/s
2048		~4470k/s	~4340k/s

Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 include/linux/percpu_ida.h | 18 +++++++++++++++++-
 lib/percpu_ida.c           | 28 +++++++++++-----------------
 2 files changed, 28 insertions(+), 18 deletions(-)

diff --git a/include/linux/percpu_ida.h b/include/linux/percpu_ida.h
index 0b23edbee309..56c14033e7e7 100644
--- a/include/linux/percpu_ida.h
+++ b/include/linux/percpu_ida.h
@@ -16,6 +16,8 @@ struct percpu_ida {
 	 * percpu_ida_init()
 	 */
 	unsigned			nr_tags;
+	unsigned			percpu_max_size;
+	unsigned			percpu_batch_size;
 
 	struct percpu_ida_cpu __percpu	*tag_cpu;
 
@@ -51,10 +53,24 @@ struct percpu_ida {
 	} ____cacheline_aligned_in_smp;
 };
 
+/*
+ * Number of tags we move between the percpu freelist and the global freelist at
+ * a time
+ */
+#define IDA_DEFAULT_PCPU_BATCH_MOVE	32U
+/* Max size of percpu freelist, */
+#define IDA_DEFAULT_PCPU_SIZE	((IDA_DEFAULT_PCPU_BATCH_MOVE * 3) / 2)
+
 int percpu_ida_alloc(struct percpu_ida *pool, gfp_t gfp);
 void percpu_ida_free(struct percpu_ida *pool, unsigned tag);
 
 void percpu_ida_destroy(struct percpu_ida *pool);
-int percpu_ida_init(struct percpu_ida *pool, unsigned long nr_tags);
+int __percpu_ida_init(struct percpu_ida *pool, unsigned long nr_tags,
+	unsigned long max_size, unsigned long batch_size);
+static inline int percpu_ida_init(struct percpu_ida *pool, unsigned long nr_tags)
+{
+	return __percpu_ida_init(pool, nr_tags, IDA_DEFAULT_PCPU_SIZE,
+		IDA_DEFAULT_PCPU_BATCH_MOVE);
+}
 
 #endif /* __PERCPU_IDA_H__ */
diff --git a/lib/percpu_ida.c b/lib/percpu_ida.c
index bab1ba2a4c71..a601d4259e13 100644
--- a/lib/percpu_ida.c
+++ b/lib/percpu_ida.c
@@ -30,15 +30,6 @@
 #include <linux/spinlock.h>
 #include <linux/percpu_ida.h>
 
-/*
- * Number of tags we move between the percpu freelist and the global freelist at
- * a time
- */
-#define IDA_PCPU_BATCH_MOVE	32U
-
-/* Max size of percpu freelist, */
-#define IDA_PCPU_SIZE		((IDA_PCPU_BATCH_MOVE * 3) / 2)
-
 struct percpu_ida_cpu {
 	/*
 	 * Even though this is percpu, we need a lock for tag stealing by remote
@@ -78,7 +69,7 @@ static inline void steal_tags(struct percpu_ida *pool,
 	struct percpu_ida_cpu *remote;
 
 	for (cpus_have_tags = cpumask_weight(&pool->cpus_have_tags);
-	     cpus_have_tags * IDA_PCPU_SIZE > pool->nr_tags / 2;
+	     cpus_have_tags * pool->percpu_max_size > pool->nr_tags / 2;
 	     cpus_have_tags--) {
 		cpu = cpumask_next(cpu, &pool->cpus_have_tags);
 
@@ -123,7 +114,7 @@ static inline void alloc_global_tags(struct percpu_ida *pool,
 {
 	move_tags(tags->freelist, &tags->nr_free,
 		  pool->freelist, &pool->nr_free,
-		  min(pool->nr_free, IDA_PCPU_BATCH_MOVE));
+		  min(pool->nr_free, pool->percpu_batch_size));
 }
 
 static inline unsigned alloc_local_tag(struct percpu_ida *pool,
@@ -245,17 +236,17 @@ void percpu_ida_free(struct percpu_ida *pool, unsigned tag)
 		wake_up(&pool->wait);
 	}
 
-	if (nr_free == IDA_PCPU_SIZE) {
+	if (nr_free == pool->percpu_max_size) {
 		spin_lock(&pool->lock);
 
 		/*
 		 * Global lock held and irqs disabled, don't need percpu
 		 * lock
 		 */
-		if (tags->nr_free == IDA_PCPU_SIZE) {
+		if (tags->nr_free == pool->percpu_max_size) {
 			move_tags(pool->freelist, &pool->nr_free,
 				  tags->freelist, &tags->nr_free,
-				  IDA_PCPU_BATCH_MOVE);
+				  pool->percpu_batch_size);
 
 			wake_up(&pool->wait);
 		}
@@ -292,7 +283,8 @@ EXPORT_SYMBOL_GPL(percpu_ida_destroy);
  * Allocation is percpu, but sharding is limited by nr_tags - for best
  * performance, the workload should not span more cpus than nr_tags / 128.
  */
-int percpu_ida_init(struct percpu_ida *pool, unsigned long nr_tags)
+int __percpu_ida_init(struct percpu_ida *pool, unsigned long nr_tags,
+	unsigned long max_size, unsigned long batch_size)
 {
 	unsigned i, cpu, order;
 
@@ -301,6 +293,8 @@ int percpu_ida_init(struct percpu_ida *pool, unsigned long nr_tags)
 	init_waitqueue_head(&pool->wait);
 	spin_lock_init(&pool->lock);
 	pool->nr_tags = nr_tags;
+	pool->percpu_max_size = max_size;
+	pool->percpu_batch_size = batch_size;
 
 	/* Guard against overflow */
 	if (nr_tags > (unsigned) INT_MAX + 1) {
@@ -319,7 +313,7 @@ int percpu_ida_init(struct percpu_ida *pool, unsigned long nr_tags)
 	pool->nr_free = nr_tags;
 
 	pool->tag_cpu = __alloc_percpu(sizeof(struct percpu_ida_cpu) +
-				       IDA_PCPU_SIZE * sizeof(unsigned),
+				       pool->percpu_max_size * sizeof(unsigned),
 				       sizeof(unsigned));
 	if (!pool->tag_cpu)
 		goto err;
@@ -332,4 +326,4 @@ err:
 	percpu_ida_destroy(pool);
 	return -ENOMEM;
 }
-EXPORT_SYMBOL_GPL(percpu_ida_init);
+EXPORT_SYMBOL_GPL(__percpu_ida_init);
-- 
cgit 


From 7fc2ba17e8bf9f218cac10cc2a3de613d9d9086d Mon Sep 17 00:00:00 2001
From: Shaohua Li <shli@kernel.org>
Date: Tue, 15 Oct 2013 09:05:02 +0800
Subject: percpu_ida: add percpu_ida_for_each_free

Add a new API to iterate free ids. blk-mq-tag will use it.

Note, this doesn't guarantee to iterate all free ids restrictly. Caller
should be aware of this. blk-mq uses it to do sanity check for request
timedout, so can tolerate the limitation.

Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 include/linux/percpu_ida.h |  4 ++++
 lib/percpu_ida.c           | 44 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 48 insertions(+)

diff --git a/include/linux/percpu_ida.h b/include/linux/percpu_ida.h
index 56c14033e7e7..63510ae6f933 100644
--- a/include/linux/percpu_ida.h
+++ b/include/linux/percpu_ida.h
@@ -73,4 +73,8 @@ static inline int percpu_ida_init(struct percpu_ida *pool, unsigned long nr_tags
 		IDA_DEFAULT_PCPU_BATCH_MOVE);
 }
 
+typedef int (*percpu_ida_cb)(unsigned, void *);
+int percpu_ida_for_each_free(struct percpu_ida *pool, percpu_ida_cb fn,
+	void *data);
+
 #endif /* __PERCPU_IDA_H__ */
diff --git a/lib/percpu_ida.c b/lib/percpu_ida.c
index a601d4259e13..0f51c1b556cf 100644
--- a/lib/percpu_ida.c
+++ b/lib/percpu_ida.c
@@ -327,3 +327,47 @@ err:
 	return -ENOMEM;
 }
 EXPORT_SYMBOL_GPL(__percpu_ida_init);
+
+/**
+ * percpu_ida_for_each_free - iterate free ids of a pool
+ * @pool: pool to iterate
+ * @fn: interate callback function
+ * @data: parameter for @fn
+ *
+ * Note, this doesn't guarantee to iterate all free ids restrictly. Some free
+ * ids might be missed, some might be iterated duplicated, and some might
+ * be iterated and not free soon.
+ */
+int percpu_ida_for_each_free(struct percpu_ida *pool, percpu_ida_cb fn,
+	void *data)
+{
+	unsigned long flags;
+	struct percpu_ida_cpu *remote;
+	unsigned cpu, i, err = 0;
+
+	local_irq_save(flags);
+	for_each_possible_cpu(cpu) {
+		remote = per_cpu_ptr(pool->tag_cpu, cpu);
+		spin_lock(&remote->lock);
+		for (i = 0; i < remote->nr_free; i++) {
+			err = fn(remote->freelist[i], data);
+			if (err)
+				break;
+		}
+		spin_unlock(&remote->lock);
+		if (err)
+			goto out;
+	}
+
+	spin_lock(&pool->lock);
+	for (i = 0; i < pool->nr_free; i++) {
+		err = fn(pool->freelist[i], data);
+		if (err)
+			break;
+	}
+	spin_unlock(&pool->lock);
+out:
+	local_irq_restore(flags);
+	return err;
+}
+EXPORT_SYMBOL_GPL(percpu_ida_for_each_free);
-- 
cgit 


From 1dddc01af0d42b21058e0cb9c1ca9e8d5204d9b0 Mon Sep 17 00:00:00 2001
From: Shaohua Li <shli@kernel.org>
Date: Tue, 15 Oct 2013 09:05:03 +0800
Subject: percpu_ida: add an API to return free tags

Add an API to return free tags, blk-mq-tag will use it.

Note, this just returns a snapshot of free tags number. blk-mq-tag has
two usages of it. One is for info output for diagnosis. The other is to
quickly check if there are free tags for request dispatch checking.
Neither requires very precise.

Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 include/linux/percpu_ida.h |  1 +
 lib/percpu_ida.c           | 17 +++++++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/include/linux/percpu_ida.h b/include/linux/percpu_ida.h
index 63510ae6f933..1900bd0fa639 100644
--- a/include/linux/percpu_ida.h
+++ b/include/linux/percpu_ida.h
@@ -77,4 +77,5 @@ typedef int (*percpu_ida_cb)(unsigned, void *);
 int percpu_ida_for_each_free(struct percpu_ida *pool, percpu_ida_cb fn,
 	void *data);
 
+unsigned percpu_ida_free_tags(struct percpu_ida *pool, int cpu);
 #endif /* __PERCPU_IDA_H__ */
diff --git a/lib/percpu_ida.c b/lib/percpu_ida.c
index 0f51c1b556cf..b0698ea972c6 100644
--- a/lib/percpu_ida.c
+++ b/lib/percpu_ida.c
@@ -371,3 +371,20 @@ out:
 	return err;
 }
 EXPORT_SYMBOL_GPL(percpu_ida_for_each_free);
+
+/**
+ * percpu_ida_free_tags - return free tags number of a specific cpu or global pool
+ * @pool: pool related
+ * @cpu: specific cpu or global pool if @cpu == nr_cpu_ids
+ *
+ * Note: this just returns a snapshot of free tags number.
+ */
+unsigned percpu_ida_free_tags(struct percpu_ida *pool, int cpu)
+{
+	struct percpu_ida_cpu *remote;
+	if (cpu == nr_cpu_ids)
+		return pool->nr_free;
+	remote = per_cpu_ptr(pool->tag_cpu, cpu);
+	return remote->nr_free;
+}
+EXPORT_SYMBOL_GPL(percpu_ida_free_tags);
-- 
cgit 


From 320ae51feed5c2f13664aa05a76bec198967e04d Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Thu, 24 Oct 2013 09:20:05 +0100
Subject: blk-mq: new multi-queue block IO queueing mechanism

Linux currently has two models for block devices:

- The classic request_fn based approach, where drivers use struct
  request units for IO. The block layer provides various helper
  functionalities to let drivers share code, things like tag
  management, timeout handling, queueing, etc.

- The "stacked" approach, where a driver squeezes in between the
  block layer and IO submitter. Since this bypasses the IO stack,
  driver generally have to manage everything themselves.

With drivers being written for new high IOPS devices, the classic
request_fn based driver doesn't work well enough. The design dates
back to when both SMP and high IOPS was rare. It has problems with
scaling to bigger machines, and runs into scaling issues even on
smaller machines when you have IOPS in the hundreds of thousands
per device.

The stacked approach is then most often selected as the model
for the driver. But this means that everybody has to re-invent
everything, and along with that we get all the problems again
that the shared approach solved.

This commit introduces blk-mq, block multi queue support. The
design is centered around per-cpu queues for queueing IO, which
then funnel down into x number of hardware submission queues.
We might have a 1:1 mapping between the two, or it might be
an N:M mapping. That all depends on what the hardware supports.

blk-mq provides various helper functions, which include:

- Scalable support for request tagging. Most devices need to
  be able to uniquely identify a request both in the driver and
  to the hardware. The tagging uses per-cpu caches for freed
  tags, to enable cache hot reuse.

- Timeout handling without tracking request on a per-device
  basis. Basically the driver should be able to get a notification,
  if a request happens to fail.

- Optional support for non 1:1 mappings between issue and
  submission queues. blk-mq can redirect IO completions to the
  desired location.

- Support for per-request payloads. Drivers almost always need
  to associate a request structure with some driver private
  command structure. Drivers can tell blk-mq this at init time,
  and then any request handed to the driver will have the
  required size of memory associated with it.

- Support for merging of IO, and plugging. The stacked model
  gets neither of these. Even for high IOPS devices, merging
  sequential IO reduces per-command overhead and thus
  increases bandwidth.

For now, this is provided as a potential 3rd queueing model, with
the hope being that, as it matures, it can replace both the classic
and stacked model. That would get us back to having just 1 real
model for block devices, leaving the stacked approach to dm/md
devices (as it was originally intended).

Contributions in this patch from the following people:

Shaohua Li <shli@fusionio.com>
Alexander Gordeev <agordeev@redhat.com>
Christoph Hellwig <hch@infradead.org>
Mike Christie <michaelc@cs.wisc.edu>
Matias Bjorling <m@bjorling.me>
Jeff Moyer <jmoyer@redhat.com>

Acked-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/Makefile            |    5 +-
 block/blk-core.c          |  142 +++--
 block/blk-exec.c          |    7 +
 block/blk-flush.c         |  154 ++++-
 block/blk-mq-cpu.c        |   93 +++
 block/blk-mq-cpumap.c     |  108 ++++
 block/blk-mq-sysfs.c      |  384 ++++++++++++
 block/blk-mq-tag.c        |  204 +++++++
 block/blk-mq-tag.h        |   27 +
 block/blk-mq.c            | 1480 +++++++++++++++++++++++++++++++++++++++++++++
 block/blk-mq.h            |   52 ++
 block/blk-sysfs.c         |   13 +
 block/blk-timeout.c       |   73 ++-
 block/blk.h               |   17 +
 include/linux/bio.h       |    2 +
 include/linux/blk-mq.h    |  182 ++++++
 include/linux/blk_types.h |    2 +
 include/linux/blkdev.h    |   54 +-
 18 files changed, 2890 insertions(+), 109 deletions(-)
 create mode 100644 block/blk-mq-cpu.c
 create mode 100644 block/blk-mq-cpumap.c
 create mode 100644 block/blk-mq-sysfs.c
 create mode 100644 block/blk-mq-tag.c
 create mode 100644 block/blk-mq-tag.h
 create mode 100644 block/blk-mq.c
 create mode 100644 block/blk-mq.h
 create mode 100644 include/linux/blk-mq.h

diff --git a/block/Makefile b/block/Makefile
index 671a83d063a5..20645e88fb57 100644
--- a/block/Makefile
+++ b/block/Makefile
@@ -5,8 +5,9 @@
 obj-$(CONFIG_BLOCK) := elevator.o blk-core.o blk-tag.o blk-sysfs.o \
 			blk-flush.o blk-settings.o blk-ioc.o blk-map.o \
 			blk-exec.o blk-merge.o blk-softirq.o blk-timeout.o \
-			blk-iopoll.o blk-lib.o ioctl.o genhd.o scsi_ioctl.o \
-			partition-generic.o partitions/
+			blk-iopoll.o blk-lib.o blk-mq.o blk-mq-tag.o \
+			blk-mq-sysfs.o blk-mq-cpu.o blk-mq-cpumap.o ioctl.o \
+			genhd.o scsi_ioctl.o partition-generic.o partitions/
 
 obj-$(CONFIG_BLK_DEV_BSG)	+= bsg.o
 obj-$(CONFIG_BLK_DEV_BSGLIB)	+= bsg-lib.o
diff --git a/block/blk-core.c b/block/blk-core.c
index 18faa7e81d3b..3bb9e9f7f87e 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -16,6 +16,7 @@
 #include <linux/backing-dev.h>
 #include <linux/bio.h>
 #include <linux/blkdev.h>
+#include <linux/blk-mq.h>
 #include <linux/highmem.h>
 #include <linux/mm.h>
 #include <linux/kernel_stat.h>
@@ -48,7 +49,7 @@ DEFINE_IDA(blk_queue_ida);
 /*
  * For the allocated request tables
  */
-static struct kmem_cache *request_cachep;
+struct kmem_cache *request_cachep = NULL;
 
 /*
  * For queue allocation
@@ -60,42 +61,6 @@ struct kmem_cache *blk_requestq_cachep;
  */
 static struct workqueue_struct *kblockd_workqueue;
 
-static void drive_stat_acct(struct request *rq, int new_io)
-{
-	struct hd_struct *part;
-	int rw = rq_data_dir(rq);
-	int cpu;
-
-	if (!blk_do_io_stat(rq))
-		return;
-
-	cpu = part_stat_lock();
-
-	if (!new_io) {
-		part = rq->part;
-		part_stat_inc(cpu, part, merges[rw]);
-	} else {
-		part = disk_map_sector_rcu(rq->rq_disk, blk_rq_pos(rq));
-		if (!hd_struct_try_get(part)) {
-			/*
-			 * The partition is already being removed,
-			 * the request will be accounted on the disk only
-			 *
-			 * We take a reference on disk->part0 although that
-			 * partition will never be deleted, so we can treat
-			 * it as any other partition.
-			 */
-			part = &rq->rq_disk->part0;
-			hd_struct_get(part);
-		}
-		part_round_stats(cpu, part);
-		part_inc_in_flight(part, rw);
-		rq->part = part;
-	}
-
-	part_stat_unlock();
-}
-
 void blk_queue_congestion_threshold(struct request_queue *q)
 {
 	int nr;
@@ -594,9 +559,12 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)
 	if (!q)
 		return NULL;
 
+	if (percpu_counter_init(&q->mq_usage_counter, 0))
+		goto fail_q;
+
 	q->id = ida_simple_get(&blk_queue_ida, 0, 0, gfp_mask);
 	if (q->id < 0)
-		goto fail_q;
+		goto fail_c;
 
 	q->backing_dev_info.ra_pages =
 			(VM_MAX_READAHEAD * 1024) / PAGE_CACHE_SIZE;
@@ -643,6 +611,8 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)
 	q->bypass_depth = 1;
 	__set_bit(QUEUE_FLAG_BYPASS, &q->queue_flags);
 
+	init_waitqueue_head(&q->mq_freeze_wq);
+
 	if (blkcg_init_queue(q))
 		goto fail_id;
 
@@ -650,6 +620,8 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)
 
 fail_id:
 	ida_simple_remove(&blk_queue_ida, q->id);
+fail_c:
+	percpu_counter_destroy(&q->mq_usage_counter);
 fail_q:
 	kmem_cache_free(blk_requestq_cachep, q);
 	return NULL;
@@ -1108,7 +1080,8 @@ retry:
 	goto retry;
 }
 
-struct request *blk_get_request(struct request_queue *q, int rw, gfp_t gfp_mask)
+static struct request *blk_old_get_request(struct request_queue *q, int rw,
+		gfp_t gfp_mask)
 {
 	struct request *rq;
 
@@ -1125,6 +1098,14 @@ struct request *blk_get_request(struct request_queue *q, int rw, gfp_t gfp_mask)
 
 	return rq;
 }
+
+struct request *blk_get_request(struct request_queue *q, int rw, gfp_t gfp_mask)
+{
+	if (q->mq_ops)
+		return blk_mq_alloc_request(q, rw, gfp_mask);
+	else
+		return blk_old_get_request(q, rw, gfp_mask);
+}
 EXPORT_SYMBOL(blk_get_request);
 
 /**
@@ -1210,7 +1191,7 @@ EXPORT_SYMBOL(blk_requeue_request);
 static void add_acct_request(struct request_queue *q, struct request *rq,
 			     int where)
 {
-	drive_stat_acct(rq, 1);
+	blk_account_io_start(rq, true);
 	__elv_add_request(q, rq, where);
 }
 
@@ -1299,12 +1280,17 @@ EXPORT_SYMBOL_GPL(__blk_put_request);
 
 void blk_put_request(struct request *req)
 {
-	unsigned long flags;
 	struct request_queue *q = req->q;
 
-	spin_lock_irqsave(q->queue_lock, flags);
-	__blk_put_request(q, req);
-	spin_unlock_irqrestore(q->queue_lock, flags);
+	if (q->mq_ops)
+		blk_mq_free_request(req);
+	else {
+		unsigned long flags;
+
+		spin_lock_irqsave(q->queue_lock, flags);
+		__blk_put_request(q, req);
+		spin_unlock_irqrestore(q->queue_lock, flags);
+	}
 }
 EXPORT_SYMBOL(blk_put_request);
 
@@ -1340,8 +1326,8 @@ void blk_add_request_payload(struct request *rq, struct page *page,
 }
 EXPORT_SYMBOL_GPL(blk_add_request_payload);
 
-static bool bio_attempt_back_merge(struct request_queue *q, struct request *req,
-				   struct bio *bio)
+bool bio_attempt_back_merge(struct request_queue *q, struct request *req,
+			    struct bio *bio)
 {
 	const int ff = bio->bi_rw & REQ_FAILFAST_MASK;
 
@@ -1358,12 +1344,12 @@ static bool bio_attempt_back_merge(struct request_queue *q, struct request *req,
 	req->__data_len += bio->bi_size;
 	req->ioprio = ioprio_best(req->ioprio, bio_prio(bio));
 
-	drive_stat_acct(req, 0);
+	blk_account_io_start(req, false);
 	return true;
 }
 
-static bool bio_attempt_front_merge(struct request_queue *q,
-				    struct request *req, struct bio *bio)
+bool bio_attempt_front_merge(struct request_queue *q, struct request *req,
+			     struct bio *bio)
 {
 	const int ff = bio->bi_rw & REQ_FAILFAST_MASK;
 
@@ -1388,12 +1374,12 @@ static bool bio_attempt_front_merge(struct request_queue *q,
 	req->__data_len += bio->bi_size;
 	req->ioprio = ioprio_best(req->ioprio, bio_prio(bio));
 
-	drive_stat_acct(req, 0);
+	blk_account_io_start(req, false);
 	return true;
 }
 
 /**
- * attempt_plug_merge - try to merge with %current's plugged list
+ * blk_attempt_plug_merge - try to merge with %current's plugged list
  * @q: request_queue new bio is being queued at
  * @bio: new bio being queued
  * @request_count: out parameter for number of traversed plugged requests
@@ -1409,8 +1395,8 @@ static bool bio_attempt_front_merge(struct request_queue *q,
  * reliable access to the elevator outside queue lock.  Only check basic
  * merging parameters without querying the elevator.
  */
-static bool attempt_plug_merge(struct request_queue *q, struct bio *bio,
-			       unsigned int *request_count)
+bool blk_attempt_plug_merge(struct request_queue *q, struct bio *bio,
+			    unsigned int *request_count)
 {
 	struct blk_plug *plug;
 	struct request *rq;
@@ -1489,7 +1475,7 @@ void blk_queue_bio(struct request_queue *q, struct bio *bio)
 	 * Check if we can merge with the plugged list before grabbing
 	 * any locks.
 	 */
-	if (attempt_plug_merge(q, bio, &request_count))
+	if (blk_attempt_plug_merge(q, bio, &request_count))
 		return;
 
 	spin_lock_irq(q->queue_lock);
@@ -1557,7 +1543,7 @@ get_rq:
 			}
 		}
 		list_add_tail(&req->queuelist, &plug->list);
-		drive_stat_acct(req, 1);
+		blk_account_io_start(req, true);
 	} else {
 		spin_lock_irq(q->queue_lock);
 		add_acct_request(q, req, where);
@@ -2011,7 +1997,7 @@ unsigned int blk_rq_err_bytes(const struct request *rq)
 }
 EXPORT_SYMBOL_GPL(blk_rq_err_bytes);
 
-static void blk_account_io_completion(struct request *req, unsigned int bytes)
+void blk_account_io_completion(struct request *req, unsigned int bytes)
 {
 	if (blk_do_io_stat(req)) {
 		const int rw = rq_data_dir(req);
@@ -2025,7 +2011,7 @@ static void blk_account_io_completion(struct request *req, unsigned int bytes)
 	}
 }
 
-static void blk_account_io_done(struct request *req)
+void blk_account_io_done(struct request *req)
 {
 	/*
 	 * Account IO completion.  flush_rq isn't accounted as a
@@ -2073,6 +2059,42 @@ static inline struct request *blk_pm_peek_request(struct request_queue *q,
 }
 #endif
 
+void blk_account_io_start(struct request *rq, bool new_io)
+{
+	struct hd_struct *part;
+	int rw = rq_data_dir(rq);
+	int cpu;
+
+	if (!blk_do_io_stat(rq))
+		return;
+
+	cpu = part_stat_lock();
+
+	if (!new_io) {
+		part = rq->part;
+		part_stat_inc(cpu, part, merges[rw]);
+	} else {
+		part = disk_map_sector_rcu(rq->rq_disk, blk_rq_pos(rq));
+		if (!hd_struct_try_get(part)) {
+			/*
+			 * The partition is already being removed,
+			 * the request will be accounted on the disk only
+			 *
+			 * We take a reference on disk->part0 although that
+			 * partition will never be deleted, so we can treat
+			 * it as any other partition.
+			 */
+			part = &rq->rq_disk->part0;
+			hd_struct_get(part);
+		}
+		part_round_stats(cpu, part);
+		part_inc_in_flight(part, rw);
+		rq->part = part;
+	}
+
+	part_stat_unlock();
+}
+
 /**
  * blk_peek_request - peek at the top of a request queue
  * @q: request queue to peek at
@@ -2448,7 +2470,6 @@ static void blk_finish_request(struct request *req, int error)
 	if (req->cmd_flags & REQ_DONTPREP)
 		blk_unprep_request(req);
 
-
 	blk_account_io_done(req);
 
 	if (req->end_io)
@@ -2870,6 +2891,7 @@ void blk_start_plug(struct blk_plug *plug)
 
 	plug->magic = PLUG_MAGIC;
 	INIT_LIST_HEAD(&plug->list);
+	INIT_LIST_HEAD(&plug->mq_list);
 	INIT_LIST_HEAD(&plug->cb_list);
 
 	/*
@@ -2967,6 +2989,10 @@ void blk_flush_plug_list(struct blk_plug *plug, bool from_schedule)
 	BUG_ON(plug->magic != PLUG_MAGIC);
 
 	flush_plug_callbacks(plug, from_schedule);
+
+	if (!list_empty(&plug->mq_list))
+		blk_mq_flush_plug_list(plug, from_schedule);
+
 	if (list_empty(&plug->list))
 		return;
 
diff --git a/block/blk-exec.c b/block/blk-exec.c
index 6b18d82d91c5..c3edf9dff566 100644
--- a/block/blk-exec.c
+++ b/block/blk-exec.c
@@ -5,6 +5,7 @@
 #include <linux/module.h>
 #include <linux/bio.h>
 #include <linux/blkdev.h>
+#include <linux/blk-mq.h>
 #include <linux/sched/sysctl.h>
 
 #include "blk.h"
@@ -58,6 +59,12 @@ void blk_execute_rq_nowait(struct request_queue *q, struct gendisk *bd_disk,
 
 	rq->rq_disk = bd_disk;
 	rq->end_io = done;
+
+	if (q->mq_ops) {
+		blk_mq_insert_request(q, rq, true);
+		return;
+	}
+
 	/*
 	 * need to check this before __blk_run_queue(), because rq can
 	 * be freed before that returns.
diff --git a/block/blk-flush.c b/block/blk-flush.c
index cc2b827a853c..3e4cc9c7890a 100644
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -69,8 +69,10 @@
 #include <linux/bio.h>
 #include <linux/blkdev.h>
 #include <linux/gfp.h>
+#include <linux/blk-mq.h>
 
 #include "blk.h"
+#include "blk-mq.h"
 
 /* FLUSH/FUA sequences */
 enum {
@@ -124,6 +126,24 @@ static void blk_flush_restore_request(struct request *rq)
 	/* make @rq a normal request */
 	rq->cmd_flags &= ~REQ_FLUSH_SEQ;
 	rq->end_io = rq->flush.saved_end_io;
+
+	blk_clear_rq_complete(rq);
+}
+
+static void mq_flush_data_run(struct work_struct *work)
+{
+	struct request *rq;
+
+	rq = container_of(work, struct request, mq_flush_data);
+
+	memset(&rq->csd, 0, sizeof(rq->csd));
+	blk_mq_run_request(rq, true, false);
+}
+
+static void blk_mq_flush_data_insert(struct request *rq)
+{
+	INIT_WORK(&rq->mq_flush_data, mq_flush_data_run);
+	kblockd_schedule_work(rq->q, &rq->mq_flush_data);
 }
 
 /**
@@ -136,7 +156,7 @@ static void blk_flush_restore_request(struct request *rq)
  * completion and trigger the next step.
  *
  * CONTEXT:
- * spin_lock_irq(q->queue_lock)
+ * spin_lock_irq(q->queue_lock or q->mq_flush_lock)
  *
  * RETURNS:
  * %true if requests were added to the dispatch queue, %false otherwise.
@@ -146,7 +166,7 @@ static bool blk_flush_complete_seq(struct request *rq, unsigned int seq,
 {
 	struct request_queue *q = rq->q;
 	struct list_head *pending = &q->flush_queue[q->flush_pending_idx];
-	bool queued = false;
+	bool queued = false, kicked;
 
 	BUG_ON(rq->flush.seq & seq);
 	rq->flush.seq |= seq;
@@ -167,8 +187,12 @@ static bool blk_flush_complete_seq(struct request *rq, unsigned int seq,
 
 	case REQ_FSEQ_DATA:
 		list_move_tail(&rq->flush.list, &q->flush_data_in_flight);
-		list_add(&rq->queuelist, &q->queue_head);
-		queued = true;
+		if (q->mq_ops)
+			blk_mq_flush_data_insert(rq);
+		else {
+			list_add(&rq->queuelist, &q->queue_head);
+			queued = true;
+		}
 		break;
 
 	case REQ_FSEQ_DONE:
@@ -181,28 +205,43 @@ static bool blk_flush_complete_seq(struct request *rq, unsigned int seq,
 		BUG_ON(!list_empty(&rq->queuelist));
 		list_del_init(&rq->flush.list);
 		blk_flush_restore_request(rq);
-		__blk_end_request_all(rq, error);
+		if (q->mq_ops)
+			blk_mq_end_io(rq, error);
+		else
+			__blk_end_request_all(rq, error);
 		break;
 
 	default:
 		BUG();
 	}
 
-	return blk_kick_flush(q) | queued;
+	kicked = blk_kick_flush(q);
+	/* blk_mq_run_flush will run queue */
+	if (q->mq_ops)
+		return queued;
+	return kicked | queued;
 }
 
 static void flush_end_io(struct request *flush_rq, int error)
 {
 	struct request_queue *q = flush_rq->q;
-	struct list_head *running = &q->flush_queue[q->flush_running_idx];
+	struct list_head *running;
 	bool queued = false;
 	struct request *rq, *n;
+	unsigned long flags = 0;
 
+	if (q->mq_ops) {
+		blk_mq_free_request(flush_rq);
+		spin_lock_irqsave(&q->mq_flush_lock, flags);
+	}
+	running = &q->flush_queue[q->flush_running_idx];
 	BUG_ON(q->flush_pending_idx == q->flush_running_idx);
 
 	/* account completion of the flush request */
 	q->flush_running_idx ^= 1;
-	elv_completed_request(q, flush_rq);
+
+	if (!q->mq_ops)
+		elv_completed_request(q, flush_rq);
 
 	/* and push the waiting requests to the next stage */
 	list_for_each_entry_safe(rq, n, running, flush.list) {
@@ -223,9 +262,48 @@ static void flush_end_io(struct request *flush_rq, int error)
 	 * directly into request_fn may confuse the driver.  Always use
 	 * kblockd.
 	 */
-	if (queued || q->flush_queue_delayed)
-		blk_run_queue_async(q);
+	if (queued || q->flush_queue_delayed) {
+		if (!q->mq_ops)
+			blk_run_queue_async(q);
+		else
+		/*
+		 * This can be optimized to only run queues with requests
+		 * queued if necessary.
+		 */
+			blk_mq_run_queues(q, true);
+	}
 	q->flush_queue_delayed = 0;
+	if (q->mq_ops)
+		spin_unlock_irqrestore(&q->mq_flush_lock, flags);
+}
+
+static void mq_flush_work(struct work_struct *work)
+{
+	struct request_queue *q;
+	struct request *rq;
+
+	q = container_of(work, struct request_queue, mq_flush_work);
+
+	/* We don't need set REQ_FLUSH_SEQ, it's for consistency */
+	rq = blk_mq_alloc_request(q, WRITE_FLUSH|REQ_FLUSH_SEQ,
+		__GFP_WAIT|GFP_ATOMIC);
+	rq->cmd_type = REQ_TYPE_FS;
+	rq->end_io = flush_end_io;
+
+	blk_mq_run_request(rq, true, false);
+}
+
+/*
+ * We can't directly use q->flush_rq, because it doesn't have tag and is not in
+ * hctx->rqs[]. so we must allocate a new request, since we can't sleep here,
+ * so offload the work to workqueue.
+ *
+ * Note: we assume a flush request finished in any hardware queue will flush
+ * the whole disk cache.
+ */
+static void mq_run_flush(struct request_queue *q)
+{
+	kblockd_schedule_work(q, &q->mq_flush_work);
 }
 
 /**
@@ -236,7 +314,7 @@ static void flush_end_io(struct request *flush_rq, int error)
  * Please read the comment at the top of this file for more info.
  *
  * CONTEXT:
- * spin_lock_irq(q->queue_lock)
+ * spin_lock_irq(q->queue_lock or q->mq_flush_lock)
  *
  * RETURNS:
  * %true if flush was issued, %false otherwise.
@@ -261,13 +339,18 @@ static bool blk_kick_flush(struct request_queue *q)
 	 * Issue flush and toggle pending_idx.  This makes pending_idx
 	 * different from running_idx, which means flush is in flight.
 	 */
+	q->flush_pending_idx ^= 1;
+	if (q->mq_ops) {
+		mq_run_flush(q);
+		return true;
+	}
+
 	blk_rq_init(q, &q->flush_rq);
 	q->flush_rq.cmd_type = REQ_TYPE_FS;
 	q->flush_rq.cmd_flags = WRITE_FLUSH | REQ_FLUSH_SEQ;
 	q->flush_rq.rq_disk = first_rq->rq_disk;
 	q->flush_rq.end_io = flush_end_io;
 
-	q->flush_pending_idx ^= 1;
 	list_add_tail(&q->flush_rq.queuelist, &q->queue_head);
 	return true;
 }
@@ -284,16 +367,37 @@ static void flush_data_end_io(struct request *rq, int error)
 		blk_run_queue_async(q);
 }
 
+static void mq_flush_data_end_io(struct request *rq, int error)
+{
+	struct request_queue *q = rq->q;
+	struct blk_mq_hw_ctx *hctx;
+	struct blk_mq_ctx *ctx;
+	unsigned long flags;
+
+	ctx = rq->mq_ctx;
+	hctx = q->mq_ops->map_queue(q, ctx->cpu);
+
+	/*
+	 * After populating an empty queue, kick it to avoid stall.  Read
+	 * the comment in flush_end_io().
+	 */
+	spin_lock_irqsave(&q->mq_flush_lock, flags);
+	if (blk_flush_complete_seq(rq, REQ_FSEQ_DATA, error))
+		blk_mq_run_hw_queue(hctx, true);
+	spin_unlock_irqrestore(&q->mq_flush_lock, flags);
+}
+
 /**
  * blk_insert_flush - insert a new FLUSH/FUA request
  * @rq: request to insert
  *
  * To be called from __elv_add_request() for %ELEVATOR_INSERT_FLUSH insertions.
+ * or __blk_mq_run_hw_queue() to dispatch request.
  * @rq is being submitted.  Analyze what needs to be done and put it on the
  * right queue.
  *
  * CONTEXT:
- * spin_lock_irq(q->queue_lock)
+ * spin_lock_irq(q->queue_lock) in !mq case
  */
 void blk_insert_flush(struct request *rq)
 {
@@ -316,7 +420,10 @@ void blk_insert_flush(struct request *rq)
 	 * complete the request.
 	 */
 	if (!policy) {
-		__blk_end_bidi_request(rq, 0, 0, 0);
+		if (q->mq_ops)
+			blk_mq_end_io(rq, 0);
+		else
+			__blk_end_bidi_request(rq, 0, 0, 0);
 		return;
 	}
 
@@ -329,7 +436,10 @@ void blk_insert_flush(struct request *rq)
 	 */
 	if ((policy & REQ_FSEQ_DATA) &&
 	    !(policy & (REQ_FSEQ_PREFLUSH | REQ_FSEQ_POSTFLUSH))) {
-		list_add_tail(&rq->queuelist, &q->queue_head);
+		if (q->mq_ops) {
+			blk_mq_run_request(rq, false, true);
+		} else
+			list_add_tail(&rq->queuelist, &q->queue_head);
 		return;
 	}
 
@@ -341,6 +451,14 @@ void blk_insert_flush(struct request *rq)
 	INIT_LIST_HEAD(&rq->flush.list);
 	rq->cmd_flags |= REQ_FLUSH_SEQ;
 	rq->flush.saved_end_io = rq->end_io; /* Usually NULL */
+	if (q->mq_ops) {
+		rq->end_io = mq_flush_data_end_io;
+
+		spin_lock_irq(&q->mq_flush_lock);
+		blk_flush_complete_seq(rq, REQ_FSEQ_ACTIONS & ~policy, 0);
+		spin_unlock_irq(&q->mq_flush_lock);
+		return;
+	}
 	rq->end_io = flush_data_end_io;
 
 	blk_flush_complete_seq(rq, REQ_FSEQ_ACTIONS & ~policy, 0);
@@ -453,3 +571,9 @@ int blkdev_issue_flush(struct block_device *bdev, gfp_t gfp_mask,
 	return ret;
 }
 EXPORT_SYMBOL(blkdev_issue_flush);
+
+void blk_mq_init_flush(struct request_queue *q)
+{
+	spin_lock_init(&q->mq_flush_lock);
+	INIT_WORK(&q->mq_flush_work, mq_flush_work);
+}
diff --git a/block/blk-mq-cpu.c b/block/blk-mq-cpu.c
new file mode 100644
index 000000000000..f8ea39d7ae54
--- /dev/null
+++ b/block/blk-mq-cpu.c
@@ -0,0 +1,93 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/blkdev.h>
+#include <linux/list.h>
+#include <linux/llist.h>
+#include <linux/smp.h>
+#include <linux/cpu.h>
+
+#include <linux/blk-mq.h>
+#include "blk-mq.h"
+
+static LIST_HEAD(blk_mq_cpu_notify_list);
+static DEFINE_SPINLOCK(blk_mq_cpu_notify_lock);
+
+static int __cpuinit blk_mq_main_cpu_notify(struct notifier_block *self,
+					    unsigned long action, void *hcpu)
+{
+	unsigned int cpu = (unsigned long) hcpu;
+	struct blk_mq_cpu_notifier *notify;
+
+	spin_lock(&blk_mq_cpu_notify_lock);
+
+	list_for_each_entry(notify, &blk_mq_cpu_notify_list, list)
+		notify->notify(notify->data, action, cpu);
+
+	spin_unlock(&blk_mq_cpu_notify_lock);
+	return NOTIFY_OK;
+}
+
+static void __cpuinit blk_mq_cpu_notify(void *data, unsigned long action,
+					unsigned int cpu)
+{
+	if (action == CPU_DEAD || action == CPU_DEAD_FROZEN) {
+		/*
+		 * If the CPU goes away, ensure that we run any pending
+		 * completions.
+		 */
+		struct llist_node *node;
+		struct request *rq;
+
+		local_irq_disable();
+
+		node = llist_del_all(&per_cpu(ipi_lists, cpu));
+		while (node) {
+			struct llist_node *next = node->next;
+
+			rq = llist_entry(node, struct request, ll_list);
+			__blk_mq_end_io(rq, rq->errors);
+			node = next;
+		}
+
+		local_irq_enable();
+	}
+}
+
+static struct notifier_block __cpuinitdata blk_mq_main_cpu_notifier = {
+	.notifier_call	= blk_mq_main_cpu_notify,
+};
+
+void blk_mq_register_cpu_notifier(struct blk_mq_cpu_notifier *notifier)
+{
+	BUG_ON(!notifier->notify);
+
+	spin_lock(&blk_mq_cpu_notify_lock);
+	list_add_tail(&notifier->list, &blk_mq_cpu_notify_list);
+	spin_unlock(&blk_mq_cpu_notify_lock);
+}
+
+void blk_mq_unregister_cpu_notifier(struct blk_mq_cpu_notifier *notifier)
+{
+	spin_lock(&blk_mq_cpu_notify_lock);
+	list_del(&notifier->list);
+	spin_unlock(&blk_mq_cpu_notify_lock);
+}
+
+void blk_mq_init_cpu_notifier(struct blk_mq_cpu_notifier *notifier,
+			      void (*fn)(void *, unsigned long, unsigned int),
+			      void *data)
+{
+	notifier->notify = fn;
+	notifier->data = data;
+}
+
+static struct blk_mq_cpu_notifier __cpuinitdata cpu_notifier = {
+	.notify = blk_mq_cpu_notify,
+};
+
+void __init blk_mq_cpu_init(void)
+{
+	register_hotcpu_notifier(&blk_mq_main_cpu_notifier);
+	blk_mq_register_cpu_notifier(&cpu_notifier);
+}
diff --git a/block/blk-mq-cpumap.c b/block/blk-mq-cpumap.c
new file mode 100644
index 000000000000..f8721278601c
--- /dev/null
+++ b/block/blk-mq-cpumap.c
@@ -0,0 +1,108 @@
+#include <linux/kernel.h>
+#include <linux/threads.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/smp.h>
+#include <linux/cpu.h>
+
+#include <linux/blk-mq.h>
+#include "blk.h"
+#include "blk-mq.h"
+
+static void show_map(unsigned int *map, unsigned int nr)
+{
+	int i;
+
+	pr_info("blk-mq: CPU -> queue map\n");
+	for_each_online_cpu(i)
+		pr_info("  CPU%2u -> Queue %u\n", i, map[i]);
+}
+
+static int cpu_to_queue_index(unsigned int nr_cpus, unsigned int nr_queues,
+			      const int cpu)
+{
+	return cpu / ((nr_cpus + nr_queues - 1) / nr_queues);
+}
+
+static int get_first_sibling(unsigned int cpu)
+{
+	unsigned int ret;
+
+	ret = cpumask_first(topology_thread_cpumask(cpu));
+	if (ret < nr_cpu_ids)
+		return ret;
+
+	return cpu;
+}
+
+int blk_mq_update_queue_map(unsigned int *map, unsigned int nr_queues)
+{
+	unsigned int i, nr_cpus, nr_uniq_cpus, queue, first_sibling;
+	cpumask_var_t cpus;
+
+	if (!alloc_cpumask_var(&cpus, GFP_ATOMIC))
+		return 1;
+
+	cpumask_clear(cpus);
+	nr_cpus = nr_uniq_cpus = 0;
+	for_each_online_cpu(i) {
+		nr_cpus++;
+		first_sibling = get_first_sibling(i);
+		if (!cpumask_test_cpu(first_sibling, cpus))
+			nr_uniq_cpus++;
+		cpumask_set_cpu(i, cpus);
+	}
+
+	queue = 0;
+	for_each_possible_cpu(i) {
+		if (!cpu_online(i)) {
+			map[i] = 0;
+			continue;
+		}
+
+		/*
+		 * Easy case - we have equal or more hardware queues. Or
+		 * there are no thread siblings to take into account. Do
+		 * 1:1 if enough, or sequential mapping if less.
+		 */
+		if (nr_queues >= nr_cpus || nr_cpus == nr_uniq_cpus) {
+			map[i] = cpu_to_queue_index(nr_cpus, nr_queues, queue);
+			queue++;
+			continue;
+		}
+
+		/*
+		 * Less then nr_cpus queues, and we have some number of
+		 * threads per cores. Map sibling threads to the same
+		 * queue.
+		 */
+		first_sibling = get_first_sibling(i);
+		if (first_sibling == i) {
+			map[i] = cpu_to_queue_index(nr_uniq_cpus, nr_queues,
+							queue);
+			queue++;
+		} else
+			map[i] = map[first_sibling];
+	}
+
+	show_map(map, nr_cpus);
+	free_cpumask_var(cpus);
+	return 0;
+}
+
+unsigned int *blk_mq_make_queue_map(struct blk_mq_reg *reg)
+{
+	unsigned int *map;
+
+	/* If cpus are offline, map them to first hctx */
+	map = kzalloc_node(sizeof(*map) * num_possible_cpus(), GFP_KERNEL,
+				reg->numa_node);
+	if (!map)
+		return NULL;
+
+	if (!blk_mq_update_queue_map(map, reg->nr_hw_queues))
+		return map;
+
+	kfree(map);
+	return NULL;
+}
diff --git a/block/blk-mq-sysfs.c b/block/blk-mq-sysfs.c
new file mode 100644
index 000000000000..ba6cf8e9aa0a
--- /dev/null
+++ b/block/blk-mq-sysfs.c
@@ -0,0 +1,384 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/backing-dev.h>
+#include <linux/bio.h>
+#include <linux/blkdev.h>
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/smp.h>
+
+#include <linux/blk-mq.h>
+#include "blk-mq.h"
+#include "blk-mq-tag.h"
+
+static void blk_mq_sysfs_release(struct kobject *kobj)
+{
+}
+
+struct blk_mq_ctx_sysfs_entry {
+	struct attribute attr;
+	ssize_t (*show)(struct blk_mq_ctx *, char *);
+	ssize_t (*store)(struct blk_mq_ctx *, const char *, size_t);
+};
+
+struct blk_mq_hw_ctx_sysfs_entry {
+	struct attribute attr;
+	ssize_t (*show)(struct blk_mq_hw_ctx *, char *);
+	ssize_t (*store)(struct blk_mq_hw_ctx *, const char *, size_t);
+};
+
+static ssize_t blk_mq_sysfs_show(struct kobject *kobj, struct attribute *attr,
+				 char *page)
+{
+	struct blk_mq_ctx_sysfs_entry *entry;
+	struct blk_mq_ctx *ctx;
+	struct request_queue *q;
+	ssize_t res;
+
+	entry = container_of(attr, struct blk_mq_ctx_sysfs_entry, attr);
+	ctx = container_of(kobj, struct blk_mq_ctx, kobj);
+	q = ctx->queue;
+
+	if (!entry->show)
+		return -EIO;
+
+	res = -ENOENT;
+	mutex_lock(&q->sysfs_lock);
+	if (!blk_queue_dying(q))
+		res = entry->show(ctx, page);
+	mutex_unlock(&q->sysfs_lock);
+	return res;
+}
+
+static ssize_t blk_mq_sysfs_store(struct kobject *kobj, struct attribute *attr,
+				  const char *page, size_t length)
+{
+	struct blk_mq_ctx_sysfs_entry *entry;
+	struct blk_mq_ctx *ctx;
+	struct request_queue *q;
+	ssize_t res;
+
+	entry = container_of(attr, struct blk_mq_ctx_sysfs_entry, attr);
+	ctx = container_of(kobj, struct blk_mq_ctx, kobj);
+	q = ctx->queue;
+
+	if (!entry->store)
+		return -EIO;
+
+	res = -ENOENT;
+	mutex_lock(&q->sysfs_lock);
+	if (!blk_queue_dying(q))
+		res = entry->store(ctx, page, length);
+	mutex_unlock(&q->sysfs_lock);
+	return res;
+}
+
+static ssize_t blk_mq_hw_sysfs_show(struct kobject *kobj,
+				    struct attribute *attr, char *page)
+{
+	struct blk_mq_hw_ctx_sysfs_entry *entry;
+	struct blk_mq_hw_ctx *hctx;
+	struct request_queue *q;
+	ssize_t res;
+
+	entry = container_of(attr, struct blk_mq_hw_ctx_sysfs_entry, attr);
+	hctx = container_of(kobj, struct blk_mq_hw_ctx, kobj);
+	q = hctx->queue;
+
+	if (!entry->show)
+		return -EIO;
+
+	res = -ENOENT;
+	mutex_lock(&q->sysfs_lock);
+	if (!blk_queue_dying(q))
+		res = entry->show(hctx, page);
+	mutex_unlock(&q->sysfs_lock);
+	return res;
+}
+
+static ssize_t blk_mq_hw_sysfs_store(struct kobject *kobj,
+				     struct attribute *attr, const char *page,
+				     size_t length)
+{
+	struct blk_mq_hw_ctx_sysfs_entry *entry;
+	struct blk_mq_hw_ctx *hctx;
+	struct request_queue *q;
+	ssize_t res;
+
+	entry = container_of(attr, struct blk_mq_hw_ctx_sysfs_entry, attr);
+	hctx = container_of(kobj, struct blk_mq_hw_ctx, kobj);
+	q = hctx->queue;
+
+	if (!entry->store)
+		return -EIO;
+
+	res = -ENOENT;
+	mutex_lock(&q->sysfs_lock);
+	if (!blk_queue_dying(q))
+		res = entry->store(hctx, page, length);
+	mutex_unlock(&q->sysfs_lock);
+	return res;
+}
+
+static ssize_t blk_mq_sysfs_dispatched_show(struct blk_mq_ctx *ctx, char *page)
+{
+	return sprintf(page, "%lu %lu\n", ctx->rq_dispatched[1],
+				ctx->rq_dispatched[0]);
+}
+
+static ssize_t blk_mq_sysfs_merged_show(struct blk_mq_ctx *ctx, char *page)
+{
+	return sprintf(page, "%lu\n", ctx->rq_merged);
+}
+
+static ssize_t blk_mq_sysfs_completed_show(struct blk_mq_ctx *ctx, char *page)
+{
+	return sprintf(page, "%lu %lu\n", ctx->rq_completed[1],
+				ctx->rq_completed[0]);
+}
+
+static ssize_t sysfs_list_show(char *page, struct list_head *list, char *msg)
+{
+	char *start_page = page;
+	struct request *rq;
+
+	page += sprintf(page, "%s:\n", msg);
+
+	list_for_each_entry(rq, list, queuelist)
+		page += sprintf(page, "\t%p\n", rq);
+
+	return page - start_page;
+}
+
+static ssize_t blk_mq_sysfs_rq_list_show(struct blk_mq_ctx *ctx, char *page)
+{
+	ssize_t ret;
+
+	spin_lock(&ctx->lock);
+	ret = sysfs_list_show(page, &ctx->rq_list, "CTX pending");
+	spin_unlock(&ctx->lock);
+
+	return ret;
+}
+
+static ssize_t blk_mq_hw_sysfs_queued_show(struct blk_mq_hw_ctx *hctx,
+					   char *page)
+{
+	return sprintf(page, "%lu\n", hctx->queued);
+}
+
+static ssize_t blk_mq_hw_sysfs_run_show(struct blk_mq_hw_ctx *hctx, char *page)
+{
+	return sprintf(page, "%lu\n", hctx->run);
+}
+
+static ssize_t blk_mq_hw_sysfs_dispatched_show(struct blk_mq_hw_ctx *hctx,
+					       char *page)
+{
+	char *start_page = page;
+	int i;
+
+	page += sprintf(page, "%8u\t%lu\n", 0U, hctx->dispatched[0]);
+
+	for (i = 1; i < BLK_MQ_MAX_DISPATCH_ORDER; i++) {
+		unsigned long d = 1U << (i - 1);
+
+		page += sprintf(page, "%8lu\t%lu\n", d, hctx->dispatched[i]);
+	}
+
+	return page - start_page;
+}
+
+static ssize_t blk_mq_hw_sysfs_rq_list_show(struct blk_mq_hw_ctx *hctx,
+					    char *page)
+{
+	ssize_t ret;
+
+	spin_lock(&hctx->lock);
+	ret = sysfs_list_show(page, &hctx->dispatch, "HCTX pending");
+	spin_unlock(&hctx->lock);
+
+	return ret;
+}
+
+static ssize_t blk_mq_hw_sysfs_ipi_show(struct blk_mq_hw_ctx *hctx, char *page)
+{
+	ssize_t ret;
+
+	spin_lock(&hctx->lock);
+	ret = sprintf(page, "%u\n", !!(hctx->flags & BLK_MQ_F_SHOULD_IPI));
+	spin_unlock(&hctx->lock);
+
+	return ret;
+}
+
+static ssize_t blk_mq_hw_sysfs_ipi_store(struct blk_mq_hw_ctx *hctx,
+					 const char *page, size_t len)
+{
+	struct blk_mq_ctx *ctx;
+	unsigned long ret;
+	unsigned int i;
+
+	if (kstrtoul(page, 10, &ret)) {
+		pr_err("blk-mq-sysfs: invalid input '%s'\n", page);
+		return -EINVAL;
+	}
+
+	spin_lock(&hctx->lock);
+	if (ret)
+		hctx->flags |= BLK_MQ_F_SHOULD_IPI;
+	else
+		hctx->flags &= ~BLK_MQ_F_SHOULD_IPI;
+	spin_unlock(&hctx->lock);
+
+	hctx_for_each_ctx(hctx, ctx, i)
+		ctx->ipi_redirect = !!ret;
+
+	return len;
+}
+
+static ssize_t blk_mq_hw_sysfs_tags_show(struct blk_mq_hw_ctx *hctx, char *page)
+{
+	return blk_mq_tag_sysfs_show(hctx->tags, page);
+}
+
+static struct blk_mq_ctx_sysfs_entry blk_mq_sysfs_dispatched = {
+	.attr = {.name = "dispatched", .mode = S_IRUGO },
+	.show = blk_mq_sysfs_dispatched_show,
+};
+static struct blk_mq_ctx_sysfs_entry blk_mq_sysfs_merged = {
+	.attr = {.name = "merged", .mode = S_IRUGO },
+	.show = blk_mq_sysfs_merged_show,
+};
+static struct blk_mq_ctx_sysfs_entry blk_mq_sysfs_completed = {
+	.attr = {.name = "completed", .mode = S_IRUGO },
+	.show = blk_mq_sysfs_completed_show,
+};
+static struct blk_mq_ctx_sysfs_entry blk_mq_sysfs_rq_list = {
+	.attr = {.name = "rq_list", .mode = S_IRUGO },
+	.show = blk_mq_sysfs_rq_list_show,
+};
+
+static struct attribute *default_ctx_attrs[] = {
+	&blk_mq_sysfs_dispatched.attr,
+	&blk_mq_sysfs_merged.attr,
+	&blk_mq_sysfs_completed.attr,
+	&blk_mq_sysfs_rq_list.attr,
+	NULL,
+};
+
+static struct blk_mq_hw_ctx_sysfs_entry blk_mq_hw_sysfs_queued = {
+	.attr = {.name = "queued", .mode = S_IRUGO },
+	.show = blk_mq_hw_sysfs_queued_show,
+};
+static struct blk_mq_hw_ctx_sysfs_entry blk_mq_hw_sysfs_run = {
+	.attr = {.name = "run", .mode = S_IRUGO },
+	.show = blk_mq_hw_sysfs_run_show,
+};
+static struct blk_mq_hw_ctx_sysfs_entry blk_mq_hw_sysfs_dispatched = {
+	.attr = {.name = "dispatched", .mode = S_IRUGO },
+	.show = blk_mq_hw_sysfs_dispatched_show,
+};
+static struct blk_mq_hw_ctx_sysfs_entry blk_mq_hw_sysfs_pending = {
+	.attr = {.name = "pending", .mode = S_IRUGO },
+	.show = blk_mq_hw_sysfs_rq_list_show,
+};
+static struct blk_mq_hw_ctx_sysfs_entry blk_mq_hw_sysfs_ipi = {
+	.attr = {.name = "ipi_redirect", .mode = S_IRUGO | S_IWUSR},
+	.show = blk_mq_hw_sysfs_ipi_show,
+	.store = blk_mq_hw_sysfs_ipi_store,
+};
+static struct blk_mq_hw_ctx_sysfs_entry blk_mq_hw_sysfs_tags = {
+	.attr = {.name = "tags", .mode = S_IRUGO },
+	.show = blk_mq_hw_sysfs_tags_show,
+};
+
+static struct attribute *default_hw_ctx_attrs[] = {
+	&blk_mq_hw_sysfs_queued.attr,
+	&blk_mq_hw_sysfs_run.attr,
+	&blk_mq_hw_sysfs_dispatched.attr,
+	&blk_mq_hw_sysfs_pending.attr,
+	&blk_mq_hw_sysfs_ipi.attr,
+	&blk_mq_hw_sysfs_tags.attr,
+	NULL,
+};
+
+static const struct sysfs_ops blk_mq_sysfs_ops = {
+	.show	= blk_mq_sysfs_show,
+	.store	= blk_mq_sysfs_store,
+};
+
+static const struct sysfs_ops blk_mq_hw_sysfs_ops = {
+	.show	= blk_mq_hw_sysfs_show,
+	.store	= blk_mq_hw_sysfs_store,
+};
+
+static struct kobj_type blk_mq_ktype = {
+	.sysfs_ops	= &blk_mq_sysfs_ops,
+	.release	= blk_mq_sysfs_release,
+};
+
+static struct kobj_type blk_mq_ctx_ktype = {
+	.sysfs_ops	= &blk_mq_sysfs_ops,
+	.default_attrs	= default_ctx_attrs,
+	.release	= blk_mq_sysfs_release,
+};
+
+static struct kobj_type blk_mq_hw_ktype = {
+	.sysfs_ops	= &blk_mq_hw_sysfs_ops,
+	.default_attrs	= default_hw_ctx_attrs,
+	.release	= blk_mq_sysfs_release,
+};
+
+void blk_mq_unregister_disk(struct gendisk *disk)
+{
+	struct request_queue *q = disk->queue;
+
+	kobject_uevent(&q->mq_kobj, KOBJ_REMOVE);
+	kobject_del(&q->mq_kobj);
+
+	kobject_put(&disk_to_dev(disk)->kobj);
+}
+
+int blk_mq_register_disk(struct gendisk *disk)
+{
+	struct device *dev = disk_to_dev(disk);
+	struct request_queue *q = disk->queue;
+	struct blk_mq_hw_ctx *hctx;
+	struct blk_mq_ctx *ctx;
+	int ret, i, j;
+
+	kobject_init(&q->mq_kobj, &blk_mq_ktype);
+
+	ret = kobject_add(&q->mq_kobj, kobject_get(&dev->kobj), "%s", "mq");
+	if (ret < 0)
+		return ret;
+
+	kobject_uevent(&q->mq_kobj, KOBJ_ADD);
+
+	queue_for_each_hw_ctx(q, hctx, i) {
+		kobject_init(&hctx->kobj, &blk_mq_hw_ktype);
+		ret = kobject_add(&hctx->kobj, &q->mq_kobj, "%u", i);
+		if (ret)
+			break;
+
+		if (!hctx->nr_ctx)
+			continue;
+
+		hctx_for_each_ctx(hctx, ctx, j) {
+			kobject_init(&ctx->kobj, &blk_mq_ctx_ktype);
+			ret = kobject_add(&ctx->kobj, &hctx->kobj, "cpu%u", ctx->cpu);
+			if (ret)
+				break;
+		}
+	}
+
+	if (ret) {
+		blk_mq_unregister_disk(disk);
+		return ret;
+	}
+
+	return 0;
+}
diff --git a/block/blk-mq-tag.c b/block/blk-mq-tag.c
new file mode 100644
index 000000000000..d64a02fb1f73
--- /dev/null
+++ b/block/blk-mq-tag.c
@@ -0,0 +1,204 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/percpu_ida.h>
+
+#include <linux/blk-mq.h>
+#include "blk.h"
+#include "blk-mq.h"
+#include "blk-mq-tag.h"
+
+/*
+ * Per tagged queue (tag address space) map
+ */
+struct blk_mq_tags {
+	unsigned int nr_tags;
+	unsigned int nr_reserved_tags;
+	unsigned int nr_batch_move;
+	unsigned int nr_max_cache;
+
+	struct percpu_ida free_tags;
+	struct percpu_ida reserved_tags;
+};
+
+void blk_mq_wait_for_tags(struct blk_mq_tags *tags)
+{
+	int tag = blk_mq_get_tag(tags, __GFP_WAIT, false);
+	blk_mq_put_tag(tags, tag);
+}
+
+bool blk_mq_has_free_tags(struct blk_mq_tags *tags)
+{
+	return !tags ||
+		percpu_ida_free_tags(&tags->free_tags, nr_cpu_ids) != 0;
+}
+
+static unsigned int __blk_mq_get_tag(struct blk_mq_tags *tags, gfp_t gfp)
+{
+	int tag;
+
+	tag = percpu_ida_alloc(&tags->free_tags, gfp);
+	if (tag < 0)
+		return BLK_MQ_TAG_FAIL;
+	return tag + tags->nr_reserved_tags;
+}
+
+static unsigned int __blk_mq_get_reserved_tag(struct blk_mq_tags *tags,
+					      gfp_t gfp)
+{
+	int tag;
+
+	if (unlikely(!tags->nr_reserved_tags)) {
+		WARN_ON_ONCE(1);
+		return BLK_MQ_TAG_FAIL;
+	}
+
+	tag = percpu_ida_alloc(&tags->reserved_tags, gfp);
+	if (tag < 0)
+		return BLK_MQ_TAG_FAIL;
+	return tag;
+}
+
+unsigned int blk_mq_get_tag(struct blk_mq_tags *tags, gfp_t gfp, bool reserved)
+{
+	if (!reserved)
+		return __blk_mq_get_tag(tags, gfp);
+
+	return __blk_mq_get_reserved_tag(tags, gfp);
+}
+
+static void __blk_mq_put_tag(struct blk_mq_tags *tags, unsigned int tag)
+{
+	BUG_ON(tag >= tags->nr_tags);
+
+	percpu_ida_free(&tags->free_tags, tag - tags->nr_reserved_tags);
+}
+
+static void __blk_mq_put_reserved_tag(struct blk_mq_tags *tags,
+				      unsigned int tag)
+{
+	BUG_ON(tag >= tags->nr_reserved_tags);
+
+	percpu_ida_free(&tags->reserved_tags, tag);
+}
+
+void blk_mq_put_tag(struct blk_mq_tags *tags, unsigned int tag)
+{
+	if (tag >= tags->nr_reserved_tags)
+		__blk_mq_put_tag(tags, tag);
+	else
+		__blk_mq_put_reserved_tag(tags, tag);
+}
+
+static int __blk_mq_tag_iter(unsigned id, void *data)
+{
+	unsigned long *tag_map = data;
+	__set_bit(id, tag_map);
+	return 0;
+}
+
+void blk_mq_tag_busy_iter(struct blk_mq_tags *tags,
+			  void (*fn)(void *, unsigned long *), void *data)
+{
+	unsigned long *tag_map;
+	size_t map_size;
+
+	map_size = ALIGN(tags->nr_tags, BITS_PER_LONG) / BITS_PER_LONG;
+	tag_map = kzalloc(map_size * sizeof(unsigned long), GFP_ATOMIC);
+	if (!tag_map)
+		return;
+
+	percpu_ida_for_each_free(&tags->free_tags, __blk_mq_tag_iter, tag_map);
+	if (tags->nr_reserved_tags)
+		percpu_ida_for_each_free(&tags->reserved_tags, __blk_mq_tag_iter,
+			tag_map);
+
+	fn(data, tag_map);
+	kfree(tag_map);
+}
+
+struct blk_mq_tags *blk_mq_init_tags(unsigned int total_tags,
+				     unsigned int reserved_tags, int node)
+{
+	unsigned int nr_tags, nr_cache;
+	struct blk_mq_tags *tags;
+	int ret;
+
+	if (total_tags > BLK_MQ_TAG_MAX) {
+		pr_err("blk-mq: tag depth too large\n");
+		return NULL;
+	}
+
+	tags = kzalloc_node(sizeof(*tags), GFP_KERNEL, node);
+	if (!tags)
+		return NULL;
+
+	nr_tags = total_tags - reserved_tags;
+	nr_cache = nr_tags / num_possible_cpus();
+
+	if (nr_cache < BLK_MQ_TAG_CACHE_MIN)
+		nr_cache = BLK_MQ_TAG_CACHE_MIN;
+	else if (nr_cache > BLK_MQ_TAG_CACHE_MAX)
+		nr_cache = BLK_MQ_TAG_CACHE_MAX;
+
+	tags->nr_tags = total_tags;
+	tags->nr_reserved_tags = reserved_tags;
+	tags->nr_max_cache = nr_cache;
+	tags->nr_batch_move = max(1u, nr_cache / 2);
+
+	ret = __percpu_ida_init(&tags->free_tags, tags->nr_tags -
+				tags->nr_reserved_tags,
+				tags->nr_max_cache,
+				tags->nr_batch_move);
+	if (ret)
+		goto err_free_tags;
+
+	if (reserved_tags) {
+		/*
+		 * With max_cahe and batch set to 1, the allocator fallbacks to
+		 * no cached. It's fine reserved tags allocation is slow.
+		 */
+		ret = __percpu_ida_init(&tags->reserved_tags, reserved_tags,
+				1, 1);
+		if (ret)
+			goto err_reserved_tags;
+	}
+
+	return tags;
+
+err_reserved_tags:
+	percpu_ida_destroy(&tags->free_tags);
+err_free_tags:
+	kfree(tags);
+	return NULL;
+}
+
+void blk_mq_free_tags(struct blk_mq_tags *tags)
+{
+	percpu_ida_destroy(&tags->free_tags);
+	percpu_ida_destroy(&tags->reserved_tags);
+	kfree(tags);
+}
+
+ssize_t blk_mq_tag_sysfs_show(struct blk_mq_tags *tags, char *page)
+{
+	char *orig_page = page;
+	int cpu;
+
+	if (!tags)
+		return 0;
+
+	page += sprintf(page, "nr_tags=%u, reserved_tags=%u, batch_move=%u,"
+			" max_cache=%u\n", tags->nr_tags, tags->nr_reserved_tags,
+			tags->nr_batch_move, tags->nr_max_cache);
+
+	page += sprintf(page, "nr_free=%u, nr_reserved=%u\n",
+			percpu_ida_free_tags(&tags->free_tags, nr_cpu_ids),
+			percpu_ida_free_tags(&tags->reserved_tags, nr_cpu_ids));
+
+	for_each_possible_cpu(cpu) {
+		page += sprintf(page, "  cpu%02u: nr_free=%u\n", cpu,
+				percpu_ida_free_tags(&tags->free_tags, cpu));
+	}
+
+	return page - orig_page;
+}
diff --git a/block/blk-mq-tag.h b/block/blk-mq-tag.h
new file mode 100644
index 000000000000..947ba2c6148e
--- /dev/null
+++ b/block/blk-mq-tag.h
@@ -0,0 +1,27 @@
+#ifndef INT_BLK_MQ_TAG_H
+#define INT_BLK_MQ_TAG_H
+
+struct blk_mq_tags;
+
+extern struct blk_mq_tags *blk_mq_init_tags(unsigned int nr_tags, unsigned int reserved_tags, int node);
+extern void blk_mq_free_tags(struct blk_mq_tags *tags);
+
+extern unsigned int blk_mq_get_tag(struct blk_mq_tags *tags, gfp_t gfp, bool reserved);
+extern void blk_mq_wait_for_tags(struct blk_mq_tags *tags);
+extern void blk_mq_put_tag(struct blk_mq_tags *tags, unsigned int tag);
+extern void blk_mq_tag_busy_iter(struct blk_mq_tags *tags, void (*fn)(void *data, unsigned long *), void *data);
+extern bool blk_mq_has_free_tags(struct blk_mq_tags *tags);
+extern ssize_t blk_mq_tag_sysfs_show(struct blk_mq_tags *tags, char *page);
+
+enum {
+	BLK_MQ_TAG_CACHE_MIN	= 1,
+	BLK_MQ_TAG_CACHE_MAX	= 64,
+};
+
+enum {
+	BLK_MQ_TAG_FAIL		= -1U,
+	BLK_MQ_TAG_MIN		= BLK_MQ_TAG_CACHE_MIN,
+	BLK_MQ_TAG_MAX		= BLK_MQ_TAG_FAIL - 1,
+};
+
+#endif
diff --git a/block/blk-mq.c b/block/blk-mq.c
new file mode 100644
index 000000000000..f21ec964e411
--- /dev/null
+++ b/block/blk-mq.c
@@ -0,0 +1,1480 @@
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/backing-dev.h>
+#include <linux/bio.h>
+#include <linux/blkdev.h>
+#include <linux/mm.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/smp.h>
+#include <linux/llist.h>
+#include <linux/list_sort.h>
+#include <linux/cpu.h>
+#include <linux/cache.h>
+#include <linux/sched/sysctl.h>
+#include <linux/delay.h>
+
+#include <trace/events/block.h>
+
+#include <linux/blk-mq.h>
+#include "blk.h"
+#include "blk-mq.h"
+#include "blk-mq-tag.h"
+
+static DEFINE_MUTEX(all_q_mutex);
+static LIST_HEAD(all_q_list);
+
+static void __blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx);
+
+DEFINE_PER_CPU(struct llist_head, ipi_lists);
+
+static struct blk_mq_ctx *__blk_mq_get_ctx(struct request_queue *q,
+					   unsigned int cpu)
+{
+	return per_cpu_ptr(q->queue_ctx, cpu);
+}
+
+/*
+ * This assumes per-cpu software queueing queues. They could be per-node
+ * as well, for instance. For now this is hardcoded as-is. Note that we don't
+ * care about preemption, since we know the ctx's are persistent. This does
+ * mean that we can't rely on ctx always matching the currently running CPU.
+ */
+static struct blk_mq_ctx *blk_mq_get_ctx(struct request_queue *q)
+{
+	return __blk_mq_get_ctx(q, get_cpu());
+}
+
+static void blk_mq_put_ctx(struct blk_mq_ctx *ctx)
+{
+	put_cpu();
+}
+
+/*
+ * Check if any of the ctx's have pending work in this hardware queue
+ */
+static bool blk_mq_hctx_has_pending(struct blk_mq_hw_ctx *hctx)
+{
+	unsigned int i;
+
+	for (i = 0; i < hctx->nr_ctx_map; i++)
+		if (hctx->ctx_map[i])
+			return true;
+
+	return false;
+}
+
+/*
+ * Mark this ctx as having pending work in this hardware queue
+ */
+static void blk_mq_hctx_mark_pending(struct blk_mq_hw_ctx *hctx,
+				     struct blk_mq_ctx *ctx)
+{
+	if (!test_bit(ctx->index_hw, hctx->ctx_map))
+		set_bit(ctx->index_hw, hctx->ctx_map);
+}
+
+static struct request *blk_mq_alloc_rq(struct blk_mq_hw_ctx *hctx, gfp_t gfp,
+				       bool reserved)
+{
+	struct request *rq;
+	unsigned int tag;
+
+	tag = blk_mq_get_tag(hctx->tags, gfp, reserved);
+	if (tag != BLK_MQ_TAG_FAIL) {
+		rq = hctx->rqs[tag];
+		rq->tag = tag;
+
+		return rq;
+	}
+
+	return NULL;
+}
+
+static int blk_mq_queue_enter(struct request_queue *q)
+{
+	int ret;
+
+	__percpu_counter_add(&q->mq_usage_counter, 1, 1000000);
+	smp_wmb();
+	/* we have problems to freeze the queue if it's initializing */
+	if (!blk_queue_bypass(q) || !blk_queue_init_done(q))
+		return 0;
+
+	__percpu_counter_add(&q->mq_usage_counter, -1, 1000000);
+
+	spin_lock_irq(q->queue_lock);
+	ret = wait_event_interruptible_lock_irq(q->mq_freeze_wq,
+		!blk_queue_bypass(q), *q->queue_lock);
+	/* inc usage with lock hold to avoid freeze_queue runs here */
+	if (!ret)
+		__percpu_counter_add(&q->mq_usage_counter, 1, 1000000);
+	spin_unlock_irq(q->queue_lock);
+
+	return ret;
+}
+
+static void blk_mq_queue_exit(struct request_queue *q)
+{
+	__percpu_counter_add(&q->mq_usage_counter, -1, 1000000);
+}
+
+/*
+ * Guarantee no request is in use, so we can change any data structure of
+ * the queue afterward.
+ */
+static void blk_mq_freeze_queue(struct request_queue *q)
+{
+	bool drain;
+
+	spin_lock_irq(q->queue_lock);
+	drain = !q->bypass_depth++;
+	queue_flag_set(QUEUE_FLAG_BYPASS, q);
+	spin_unlock_irq(q->queue_lock);
+
+	if (!drain)
+		return;
+
+	while (true) {
+		s64 count;
+
+		spin_lock_irq(q->queue_lock);
+		count = percpu_counter_sum(&q->mq_usage_counter);
+		spin_unlock_irq(q->queue_lock);
+
+		if (count == 0)
+			break;
+		blk_mq_run_queues(q, false);
+		msleep(10);
+	}
+}
+
+static void blk_mq_unfreeze_queue(struct request_queue *q)
+{
+	bool wake = false;
+
+	spin_lock_irq(q->queue_lock);
+	if (!--q->bypass_depth) {
+		queue_flag_clear(QUEUE_FLAG_BYPASS, q);
+		wake = true;
+	}
+	WARN_ON_ONCE(q->bypass_depth < 0);
+	spin_unlock_irq(q->queue_lock);
+	if (wake)
+		wake_up_all(&q->mq_freeze_wq);
+}
+
+bool blk_mq_can_queue(struct blk_mq_hw_ctx *hctx)
+{
+	return blk_mq_has_free_tags(hctx->tags);
+}
+EXPORT_SYMBOL(blk_mq_can_queue);
+
+static void blk_mq_rq_ctx_init(struct blk_mq_ctx *ctx, struct request *rq,
+			       unsigned int rw_flags)
+{
+	rq->mq_ctx = ctx;
+	rq->cmd_flags = rw_flags;
+	ctx->rq_dispatched[rw_is_sync(rw_flags)]++;
+}
+
+static struct request *__blk_mq_alloc_request(struct blk_mq_hw_ctx *hctx,
+					      gfp_t gfp, bool reserved)
+{
+	return blk_mq_alloc_rq(hctx, gfp, reserved);
+}
+
+static struct request *blk_mq_alloc_request_pinned(struct request_queue *q,
+						   int rw, gfp_t gfp,
+						   bool reserved)
+{
+	struct request *rq;
+
+	do {
+		struct blk_mq_ctx *ctx = blk_mq_get_ctx(q);
+		struct blk_mq_hw_ctx *hctx = q->mq_ops->map_queue(q, ctx->cpu);
+
+		rq = __blk_mq_alloc_request(hctx, gfp & ~__GFP_WAIT, reserved);
+		if (rq) {
+			blk_mq_rq_ctx_init(ctx, rq, rw);
+			break;
+		} else if (!(gfp & __GFP_WAIT))
+			break;
+
+		blk_mq_put_ctx(ctx);
+		__blk_mq_run_hw_queue(hctx);
+		blk_mq_wait_for_tags(hctx->tags);
+	} while (1);
+
+	return rq;
+}
+
+struct request *blk_mq_alloc_request(struct request_queue *q, int rw, gfp_t gfp)
+{
+	struct request *rq;
+
+	if (blk_mq_queue_enter(q))
+		return NULL;
+
+	rq = blk_mq_alloc_request_pinned(q, rw, gfp, false);
+	blk_mq_put_ctx(rq->mq_ctx);
+	return rq;
+}
+
+struct request *blk_mq_alloc_reserved_request(struct request_queue *q, int rw,
+					      gfp_t gfp)
+{
+	struct request *rq;
+
+	if (blk_mq_queue_enter(q))
+		return NULL;
+
+	rq = blk_mq_alloc_request_pinned(q, rw, gfp, true);
+	blk_mq_put_ctx(rq->mq_ctx);
+	return rq;
+}
+EXPORT_SYMBOL(blk_mq_alloc_reserved_request);
+
+/*
+ * Re-init and set pdu, if we have it
+ */
+static void blk_mq_rq_init(struct blk_mq_hw_ctx *hctx, struct request *rq)
+{
+	blk_rq_init(hctx->queue, rq);
+
+	if (hctx->cmd_size)
+		rq->special = blk_mq_rq_to_pdu(rq);
+}
+
+static void __blk_mq_free_request(struct blk_mq_hw_ctx *hctx,
+				  struct blk_mq_ctx *ctx, struct request *rq)
+{
+	const int tag = rq->tag;
+	struct request_queue *q = rq->q;
+
+	blk_mq_rq_init(hctx, rq);
+	blk_mq_put_tag(hctx->tags, tag);
+
+	blk_mq_queue_exit(q);
+}
+
+void blk_mq_free_request(struct request *rq)
+{
+	struct blk_mq_ctx *ctx = rq->mq_ctx;
+	struct blk_mq_hw_ctx *hctx;
+	struct request_queue *q = rq->q;
+
+	ctx->rq_completed[rq_is_sync(rq)]++;
+
+	hctx = q->mq_ops->map_queue(q, ctx->cpu);
+	__blk_mq_free_request(hctx, ctx, rq);
+}
+
+static void blk_mq_bio_endio(struct request *rq, struct bio *bio, int error)
+{
+	if (error)
+		clear_bit(BIO_UPTODATE, &bio->bi_flags);
+	else if (!test_bit(BIO_UPTODATE, &bio->bi_flags))
+		error = -EIO;
+
+	if (unlikely(rq->cmd_flags & REQ_QUIET))
+		set_bit(BIO_QUIET, &bio->bi_flags);
+
+	/* don't actually finish bio if it's part of flush sequence */
+	if (!(rq->cmd_flags & REQ_FLUSH_SEQ))
+		bio_endio(bio, error);
+}
+
+void blk_mq_complete_request(struct request *rq, int error)
+{
+	struct bio *bio = rq->bio;
+	unsigned int bytes = 0;
+
+	trace_block_rq_complete(rq->q, rq);
+
+	while (bio) {
+		struct bio *next = bio->bi_next;
+
+		bio->bi_next = NULL;
+		bytes += bio->bi_size;
+		blk_mq_bio_endio(rq, bio, error);
+		bio = next;
+	}
+
+	blk_account_io_completion(rq, bytes);
+
+	if (rq->end_io)
+		rq->end_io(rq, error);
+	else
+		blk_mq_free_request(rq);
+
+	blk_account_io_done(rq);
+}
+
+void __blk_mq_end_io(struct request *rq, int error)
+{
+	if (!blk_mark_rq_complete(rq))
+		blk_mq_complete_request(rq, error);
+}
+
+#if defined(CONFIG_SMP) && defined(CONFIG_USE_GENERIC_SMP_HELPERS)
+
+/*
+ * Called with interrupts disabled.
+ */
+static void ipi_end_io(void *data)
+{
+	struct llist_head *list = &per_cpu(ipi_lists, smp_processor_id());
+	struct llist_node *entry, *next;
+	struct request *rq;
+
+	entry = llist_del_all(list);
+
+	while (entry) {
+		next = entry->next;
+		rq = llist_entry(entry, struct request, ll_list);
+		__blk_mq_end_io(rq, rq->errors);
+		entry = next;
+	}
+}
+
+static int ipi_remote_cpu(struct blk_mq_ctx *ctx, const int cpu,
+			  struct request *rq, const int error)
+{
+	struct call_single_data *data = &rq->csd;
+
+	rq->errors = error;
+	rq->ll_list.next = NULL;
+
+	/*
+	 * If the list is non-empty, an existing IPI must already
+	 * be "in flight". If that is the case, we need not schedule
+	 * a new one.
+	 */
+	if (llist_add(&rq->ll_list, &per_cpu(ipi_lists, ctx->cpu))) {
+		data->func = ipi_end_io;
+		data->flags = 0;
+		__smp_call_function_single(ctx->cpu, data, 0);
+	}
+
+	return true;
+}
+#else /* CONFIG_SMP && CONFIG_USE_GENERIC_SMP_HELPERS */
+static int ipi_remote_cpu(struct blk_mq_ctx *ctx, const int cpu,
+			  struct request *rq, const int error)
+{
+	return false;
+}
+#endif
+
+/*
+ * End IO on this request on a multiqueue enabled driver. We'll either do
+ * it directly inline, or punt to a local IPI handler on the matching
+ * remote CPU.
+ */
+void blk_mq_end_io(struct request *rq, int error)
+{
+	struct blk_mq_ctx *ctx = rq->mq_ctx;
+	int cpu;
+
+	if (!ctx->ipi_redirect)
+		return __blk_mq_end_io(rq, error);
+
+	cpu = get_cpu();
+
+	if (cpu == ctx->cpu || !cpu_online(ctx->cpu) ||
+	    !ipi_remote_cpu(ctx, cpu, rq, error))
+		__blk_mq_end_io(rq, error);
+
+	put_cpu();
+}
+EXPORT_SYMBOL(blk_mq_end_io);
+
+static void blk_mq_start_request(struct request *rq)
+{
+	struct request_queue *q = rq->q;
+
+	trace_block_rq_issue(q, rq);
+
+	/*
+	 * Just mark start time and set the started bit. Due to memory
+	 * ordering, we know we'll see the correct deadline as long as
+	 * REQ_ATOMIC_STARTED is seen.
+	 */
+	rq->deadline = jiffies + q->rq_timeout;
+	set_bit(REQ_ATOM_STARTED, &rq->atomic_flags);
+}
+
+static void blk_mq_requeue_request(struct request *rq)
+{
+	struct request_queue *q = rq->q;
+
+	trace_block_rq_requeue(q, rq);
+	clear_bit(REQ_ATOM_STARTED, &rq->atomic_flags);
+}
+
+struct blk_mq_timeout_data {
+	struct blk_mq_hw_ctx *hctx;
+	unsigned long *next;
+	unsigned int *next_set;
+};
+
+static void blk_mq_timeout_check(void *__data, unsigned long *free_tags)
+{
+	struct blk_mq_timeout_data *data = __data;
+	struct blk_mq_hw_ctx *hctx = data->hctx;
+	unsigned int tag;
+
+	 /* It may not be in flight yet (this is where
+	 * the REQ_ATOMIC_STARTED flag comes in). The requests are
+	 * statically allocated, so we know it's always safe to access the
+	 * memory associated with a bit offset into ->rqs[].
+	 */
+	tag = 0;
+	do {
+		struct request *rq;
+
+		tag = find_next_zero_bit(free_tags, hctx->queue_depth, tag);
+		if (tag >= hctx->queue_depth)
+			break;
+
+		rq = hctx->rqs[tag++];
+
+		if (!test_bit(REQ_ATOM_STARTED, &rq->atomic_flags))
+			continue;
+
+		blk_rq_check_expired(rq, data->next, data->next_set);
+	} while (1);
+}
+
+static void blk_mq_hw_ctx_check_timeout(struct blk_mq_hw_ctx *hctx,
+					unsigned long *next,
+					unsigned int *next_set)
+{
+	struct blk_mq_timeout_data data = {
+		.hctx		= hctx,
+		.next		= next,
+		.next_set	= next_set,
+	};
+
+	/*
+	 * Ask the tagging code to iterate busy requests, so we can
+	 * check them for timeout.
+	 */
+	blk_mq_tag_busy_iter(hctx->tags, blk_mq_timeout_check, &data);
+}
+
+static void blk_mq_rq_timer(unsigned long data)
+{
+	struct request_queue *q = (struct request_queue *) data;
+	struct blk_mq_hw_ctx *hctx;
+	unsigned long next = 0;
+	int i, next_set = 0;
+
+	queue_for_each_hw_ctx(q, hctx, i)
+		blk_mq_hw_ctx_check_timeout(hctx, &next, &next_set);
+
+	if (next_set)
+		mod_timer(&q->timeout, round_jiffies_up(next));
+}
+
+/*
+ * Reverse check our software queue for entries that we could potentially
+ * merge with. Currently includes a hand-wavy stop count of 8, to not spend
+ * too much time checking for merges.
+ */
+static bool blk_mq_attempt_merge(struct request_queue *q,
+				 struct blk_mq_ctx *ctx, struct bio *bio)
+{
+	struct request *rq;
+	int checked = 8;
+
+	list_for_each_entry_reverse(rq, &ctx->rq_list, queuelist) {
+		int el_ret;
+
+		if (!checked--)
+			break;
+
+		if (!blk_rq_merge_ok(rq, bio))
+			continue;
+
+		el_ret = blk_try_merge(rq, bio);
+		if (el_ret == ELEVATOR_BACK_MERGE) {
+			if (bio_attempt_back_merge(q, rq, bio)) {
+				ctx->rq_merged++;
+				return true;
+			}
+			break;
+		} else if (el_ret == ELEVATOR_FRONT_MERGE) {
+			if (bio_attempt_front_merge(q, rq, bio)) {
+				ctx->rq_merged++;
+				return true;
+			}
+			break;
+		}
+	}
+
+	return false;
+}
+
+void blk_mq_add_timer(struct request *rq)
+{
+	__blk_add_timer(rq, NULL);
+}
+
+/*
+ * Run this hardware queue, pulling any software queues mapped to it in.
+ * Note that this function currently has various problems around ordering
+ * of IO. In particular, we'd like FIFO behaviour on handling existing
+ * items on the hctx->dispatch list. Ignore that for now.
+ */
+static void __blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx)
+{
+	struct request_queue *q = hctx->queue;
+	struct blk_mq_ctx *ctx;
+	struct request *rq;
+	LIST_HEAD(rq_list);
+	int bit, queued;
+
+	if (unlikely(test_bit(BLK_MQ_S_STOPPED, &hctx->flags)))
+		return;
+
+	hctx->run++;
+
+	/*
+	 * Touch any software queue that has pending entries.
+	 */
+	for_each_set_bit(bit, hctx->ctx_map, hctx->nr_ctx) {
+		clear_bit(bit, hctx->ctx_map);
+		ctx = hctx->ctxs[bit];
+		BUG_ON(bit != ctx->index_hw);
+
+		spin_lock(&ctx->lock);
+		list_splice_tail_init(&ctx->rq_list, &rq_list);
+		spin_unlock(&ctx->lock);
+	}
+
+	/*
+	 * If we have previous entries on our dispatch list, grab them
+	 * and stuff them at the front for more fair dispatch.
+	 */
+	if (!list_empty_careful(&hctx->dispatch)) {
+		spin_lock(&hctx->lock);
+		if (!list_empty(&hctx->dispatch))
+			list_splice_init(&hctx->dispatch, &rq_list);
+		spin_unlock(&hctx->lock);
+	}
+
+	/*
+	 * Delete and return all entries from our dispatch list
+	 */
+	queued = 0;
+
+	/*
+	 * Now process all the entries, sending them to the driver.
+	 */
+	while (!list_empty(&rq_list)) {
+		int ret;
+
+		rq = list_first_entry(&rq_list, struct request, queuelist);
+		list_del_init(&rq->queuelist);
+		blk_mq_start_request(rq);
+
+		/*
+		 * Last request in the series. Flag it as such, this
+		 * enables drivers to know when IO should be kicked off,
+		 * if they don't do it on a per-request basis.
+		 *
+		 * Note: the flag isn't the only condition drivers
+		 * should do kick off. If drive is busy, the last
+		 * request might not have the bit set.
+		 */
+		if (list_empty(&rq_list))
+			rq->cmd_flags |= REQ_END;
+
+		ret = q->mq_ops->queue_rq(hctx, rq);
+		switch (ret) {
+		case BLK_MQ_RQ_QUEUE_OK:
+			queued++;
+			continue;
+		case BLK_MQ_RQ_QUEUE_BUSY:
+			/*
+			 * FIXME: we should have a mechanism to stop the queue
+			 * like blk_stop_queue, otherwise we will waste cpu
+			 * time
+			 */
+			list_add(&rq->queuelist, &rq_list);
+			blk_mq_requeue_request(rq);
+			break;
+		default:
+			pr_err("blk-mq: bad return on queue: %d\n", ret);
+			rq->errors = -EIO;
+		case BLK_MQ_RQ_QUEUE_ERROR:
+			blk_mq_end_io(rq, rq->errors);
+			break;
+		}
+
+		if (ret == BLK_MQ_RQ_QUEUE_BUSY)
+			break;
+	}
+
+	if (!queued)
+		hctx->dispatched[0]++;
+	else if (queued < (1 << (BLK_MQ_MAX_DISPATCH_ORDER - 1)))
+		hctx->dispatched[ilog2(queued) + 1]++;
+
+	/*
+	 * Any items that need requeuing? Stuff them into hctx->dispatch,
+	 * that is where we will continue on next queue run.
+	 */
+	if (!list_empty(&rq_list)) {
+		spin_lock(&hctx->lock);
+		list_splice(&rq_list, &hctx->dispatch);
+		spin_unlock(&hctx->lock);
+	}
+}
+
+void blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async)
+{
+	if (unlikely(test_bit(BLK_MQ_S_STOPPED, &hctx->flags)))
+		return;
+
+	if (!async)
+		__blk_mq_run_hw_queue(hctx);
+	else {
+		struct request_queue *q = hctx->queue;
+
+		kblockd_schedule_delayed_work(q, &hctx->delayed_work, 0);
+	}
+}
+
+void blk_mq_run_queues(struct request_queue *q, bool async)
+{
+	struct blk_mq_hw_ctx *hctx;
+	int i;
+
+	queue_for_each_hw_ctx(q, hctx, i) {
+		if ((!blk_mq_hctx_has_pending(hctx) &&
+		    list_empty_careful(&hctx->dispatch)) ||
+		    test_bit(BLK_MQ_S_STOPPED, &hctx->flags))
+			continue;
+
+		blk_mq_run_hw_queue(hctx, async);
+	}
+}
+EXPORT_SYMBOL(blk_mq_run_queues);
+
+void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx)
+{
+	cancel_delayed_work(&hctx->delayed_work);
+	set_bit(BLK_MQ_S_STOPPED, &hctx->state);
+}
+EXPORT_SYMBOL(blk_mq_stop_hw_queue);
+
+void blk_mq_start_hw_queue(struct blk_mq_hw_ctx *hctx)
+{
+	clear_bit(BLK_MQ_S_STOPPED, &hctx->state);
+	__blk_mq_run_hw_queue(hctx);
+}
+EXPORT_SYMBOL(blk_mq_start_hw_queue);
+
+void blk_mq_start_stopped_hw_queues(struct request_queue *q)
+{
+	struct blk_mq_hw_ctx *hctx;
+	int i;
+
+	queue_for_each_hw_ctx(q, hctx, i) {
+		if (!test_bit(BLK_MQ_S_STOPPED, &hctx->state))
+			continue;
+
+		clear_bit(BLK_MQ_S_STOPPED, &hctx->state);
+		blk_mq_run_hw_queue(hctx, true);
+	}
+}
+EXPORT_SYMBOL(blk_mq_start_stopped_hw_queues);
+
+static void blk_mq_work_fn(struct work_struct *work)
+{
+	struct blk_mq_hw_ctx *hctx;
+
+	hctx = container_of(work, struct blk_mq_hw_ctx, delayed_work.work);
+	__blk_mq_run_hw_queue(hctx);
+}
+
+static void __blk_mq_insert_request(struct blk_mq_hw_ctx *hctx,
+				    struct request *rq)
+{
+	struct blk_mq_ctx *ctx = rq->mq_ctx;
+
+	list_add_tail(&rq->queuelist, &ctx->rq_list);
+	blk_mq_hctx_mark_pending(hctx, ctx);
+
+	/*
+	 * We do this early, to ensure we are on the right CPU.
+	 */
+	blk_mq_add_timer(rq);
+}
+
+void blk_mq_insert_request(struct request_queue *q, struct request *rq,
+			   bool run_queue)
+{
+	struct blk_mq_hw_ctx *hctx;
+	struct blk_mq_ctx *ctx, *current_ctx;
+
+	ctx = rq->mq_ctx;
+	hctx = q->mq_ops->map_queue(q, ctx->cpu);
+
+	if (rq->cmd_flags & (REQ_FLUSH | REQ_FUA)) {
+		blk_insert_flush(rq);
+	} else {
+		current_ctx = blk_mq_get_ctx(q);
+
+		if (!cpu_online(ctx->cpu)) {
+			ctx = current_ctx;
+			hctx = q->mq_ops->map_queue(q, ctx->cpu);
+			rq->mq_ctx = ctx;
+		}
+		spin_lock(&ctx->lock);
+		__blk_mq_insert_request(hctx, rq);
+		spin_unlock(&ctx->lock);
+
+		blk_mq_put_ctx(current_ctx);
+	}
+
+	if (run_queue)
+		__blk_mq_run_hw_queue(hctx);
+}
+EXPORT_SYMBOL(blk_mq_insert_request);
+
+/*
+ * This is a special version of blk_mq_insert_request to bypass FLUSH request
+ * check. Should only be used internally.
+ */
+void blk_mq_run_request(struct request *rq, bool run_queue, bool async)
+{
+	struct request_queue *q = rq->q;
+	struct blk_mq_hw_ctx *hctx;
+	struct blk_mq_ctx *ctx, *current_ctx;
+
+	current_ctx = blk_mq_get_ctx(q);
+
+	ctx = rq->mq_ctx;
+	if (!cpu_online(ctx->cpu)) {
+		ctx = current_ctx;
+		rq->mq_ctx = ctx;
+	}
+	hctx = q->mq_ops->map_queue(q, ctx->cpu);
+
+	/* ctx->cpu might be offline */
+	spin_lock(&ctx->lock);
+	__blk_mq_insert_request(hctx, rq);
+	spin_unlock(&ctx->lock);
+
+	blk_mq_put_ctx(current_ctx);
+
+	if (run_queue)
+		blk_mq_run_hw_queue(hctx, async);
+}
+
+static void blk_mq_insert_requests(struct request_queue *q,
+				     struct blk_mq_ctx *ctx,
+				     struct list_head *list,
+				     int depth,
+				     bool from_schedule)
+
+{
+	struct blk_mq_hw_ctx *hctx;
+	struct blk_mq_ctx *current_ctx;
+
+	trace_block_unplug(q, depth, !from_schedule);
+
+	current_ctx = blk_mq_get_ctx(q);
+
+	if (!cpu_online(ctx->cpu))
+		ctx = current_ctx;
+	hctx = q->mq_ops->map_queue(q, ctx->cpu);
+
+	/*
+	 * preemption doesn't flush plug list, so it's possible ctx->cpu is
+	 * offline now
+	 */
+	spin_lock(&ctx->lock);
+	while (!list_empty(list)) {
+		struct request *rq;
+
+		rq = list_first_entry(list, struct request, queuelist);
+		list_del_init(&rq->queuelist);
+		rq->mq_ctx = ctx;
+		__blk_mq_insert_request(hctx, rq);
+	}
+	spin_unlock(&ctx->lock);
+
+	blk_mq_put_ctx(current_ctx);
+
+	blk_mq_run_hw_queue(hctx, from_schedule);
+}
+
+static int plug_ctx_cmp(void *priv, struct list_head *a, struct list_head *b)
+{
+	struct request *rqa = container_of(a, struct request, queuelist);
+	struct request *rqb = container_of(b, struct request, queuelist);
+
+	return !(rqa->mq_ctx < rqb->mq_ctx ||
+		 (rqa->mq_ctx == rqb->mq_ctx &&
+		  blk_rq_pos(rqa) < blk_rq_pos(rqb)));
+}
+
+void blk_mq_flush_plug_list(struct blk_plug *plug, bool from_schedule)
+{
+	struct blk_mq_ctx *this_ctx;
+	struct request_queue *this_q;
+	struct request *rq;
+	LIST_HEAD(list);
+	LIST_HEAD(ctx_list);
+	unsigned int depth;
+
+	list_splice_init(&plug->mq_list, &list);
+
+	list_sort(NULL, &list, plug_ctx_cmp);
+
+	this_q = NULL;
+	this_ctx = NULL;
+	depth = 0;
+
+	while (!list_empty(&list)) {
+		rq = list_entry_rq(list.next);
+		list_del_init(&rq->queuelist);
+		BUG_ON(!rq->q);
+		if (rq->mq_ctx != this_ctx) {
+			if (this_ctx) {
+				blk_mq_insert_requests(this_q, this_ctx,
+							&ctx_list, depth,
+							from_schedule);
+			}
+
+			this_ctx = rq->mq_ctx;
+			this_q = rq->q;
+			depth = 0;
+		}
+
+		depth++;
+		list_add_tail(&rq->queuelist, &ctx_list);
+	}
+
+	/*
+	 * If 'this_ctx' is set, we know we have entries to complete
+	 * on 'ctx_list'. Do those.
+	 */
+	if (this_ctx) {
+		blk_mq_insert_requests(this_q, this_ctx, &ctx_list, depth,
+				       from_schedule);
+	}
+}
+
+static void blk_mq_bio_to_request(struct request *rq, struct bio *bio)
+{
+	init_request_from_bio(rq, bio);
+	blk_account_io_start(rq, 1);
+}
+
+static void blk_mq_make_request(struct request_queue *q, struct bio *bio)
+{
+	struct blk_mq_hw_ctx *hctx;
+	struct blk_mq_ctx *ctx;
+	const int is_sync = rw_is_sync(bio->bi_rw);
+	const int is_flush_fua = bio->bi_rw & (REQ_FLUSH | REQ_FUA);
+	int rw = bio_data_dir(bio);
+	struct request *rq;
+	unsigned int use_plug, request_count = 0;
+
+	/*
+	 * If we have multiple hardware queues, just go directly to
+	 * one of those for sync IO.
+	 */
+	use_plug = !is_flush_fua && ((q->nr_hw_queues == 1) || !is_sync);
+
+	blk_queue_bounce(q, &bio);
+
+	if (use_plug && blk_attempt_plug_merge(q, bio, &request_count))
+		return;
+
+	if (blk_mq_queue_enter(q)) {
+		bio_endio(bio, -EIO);
+		return;
+	}
+
+	ctx = blk_mq_get_ctx(q);
+	hctx = q->mq_ops->map_queue(q, ctx->cpu);
+
+	trace_block_getrq(q, bio, rw);
+	rq = __blk_mq_alloc_request(hctx, GFP_ATOMIC, false);
+	if (likely(rq))
+		blk_mq_rq_ctx_init(ctx, rq, rw);
+	else {
+		blk_mq_put_ctx(ctx);
+		trace_block_sleeprq(q, bio, rw);
+		rq = blk_mq_alloc_request_pinned(q, rw, __GFP_WAIT|GFP_ATOMIC,
+							false);
+		ctx = rq->mq_ctx;
+		hctx = q->mq_ops->map_queue(q, ctx->cpu);
+	}
+
+	hctx->queued++;
+
+	if (unlikely(is_flush_fua)) {
+		blk_mq_bio_to_request(rq, bio);
+		blk_mq_put_ctx(ctx);
+		blk_insert_flush(rq);
+		goto run_queue;
+	}
+
+	/*
+	 * A task plug currently exists. Since this is completely lockless,
+	 * utilize that to temporarily store requests until the task is
+	 * either done or scheduled away.
+	 */
+	if (use_plug) {
+		struct blk_plug *plug = current->plug;
+
+		if (plug) {
+			blk_mq_bio_to_request(rq, bio);
+			if (list_empty(&plug->list))
+				trace_block_plug(q);
+			else if (request_count >= BLK_MAX_REQUEST_COUNT) {
+				blk_flush_plug_list(plug, false);
+				trace_block_plug(q);
+			}
+			list_add_tail(&rq->queuelist, &plug->mq_list);
+			blk_mq_put_ctx(ctx);
+			return;
+		}
+	}
+
+	spin_lock(&ctx->lock);
+
+	if ((hctx->flags & BLK_MQ_F_SHOULD_MERGE) &&
+	    blk_mq_attempt_merge(q, ctx, bio))
+		__blk_mq_free_request(hctx, ctx, rq);
+	else {
+		blk_mq_bio_to_request(rq, bio);
+		__blk_mq_insert_request(hctx, rq);
+	}
+
+	spin_unlock(&ctx->lock);
+	blk_mq_put_ctx(ctx);
+
+	/*
+	 * For a SYNC request, send it to the hardware immediately. For an
+	 * ASYNC request, just ensure that we run it later on. The latter
+	 * allows for merging opportunities and more efficient dispatching.
+	 */
+run_queue:
+	blk_mq_run_hw_queue(hctx, !is_sync || is_flush_fua);
+}
+
+/*
+ * Default mapping to a software queue, since we use one per CPU.
+ */
+struct blk_mq_hw_ctx *blk_mq_map_queue(struct request_queue *q, const int cpu)
+{
+	return q->queue_hw_ctx[q->mq_map[cpu]];
+}
+EXPORT_SYMBOL(blk_mq_map_queue);
+
+struct blk_mq_hw_ctx *blk_mq_alloc_single_hw_queue(struct blk_mq_reg *reg,
+						   unsigned int hctx_index)
+{
+	return kmalloc_node(sizeof(struct blk_mq_hw_ctx),
+				GFP_KERNEL | __GFP_ZERO, reg->numa_node);
+}
+EXPORT_SYMBOL(blk_mq_alloc_single_hw_queue);
+
+void blk_mq_free_single_hw_queue(struct blk_mq_hw_ctx *hctx,
+				 unsigned int hctx_index)
+{
+	kfree(hctx);
+}
+EXPORT_SYMBOL(blk_mq_free_single_hw_queue);
+
+static void blk_mq_hctx_notify(void *data, unsigned long action,
+			       unsigned int cpu)
+{
+	struct blk_mq_hw_ctx *hctx = data;
+	struct blk_mq_ctx *ctx;
+	LIST_HEAD(tmp);
+
+	if (action != CPU_DEAD && action != CPU_DEAD_FROZEN)
+		return;
+
+	/*
+	 * Move ctx entries to new CPU, if this one is going away.
+	 */
+	ctx = __blk_mq_get_ctx(hctx->queue, cpu);
+
+	spin_lock(&ctx->lock);
+	if (!list_empty(&ctx->rq_list)) {
+		list_splice_init(&ctx->rq_list, &tmp);
+		clear_bit(ctx->index_hw, hctx->ctx_map);
+	}
+	spin_unlock(&ctx->lock);
+
+	if (list_empty(&tmp))
+		return;
+
+	ctx = blk_mq_get_ctx(hctx->queue);
+	spin_lock(&ctx->lock);
+
+	while (!list_empty(&tmp)) {
+		struct request *rq;
+
+		rq = list_first_entry(&tmp, struct request, queuelist);
+		rq->mq_ctx = ctx;
+		list_move_tail(&rq->queuelist, &ctx->rq_list);
+	}
+
+	blk_mq_hctx_mark_pending(hctx, ctx);
+
+	spin_unlock(&ctx->lock);
+	blk_mq_put_ctx(ctx);
+}
+
+static void blk_mq_init_hw_commands(struct blk_mq_hw_ctx *hctx,
+				    void (*init)(void *, struct blk_mq_hw_ctx *,
+					struct request *, unsigned int),
+				    void *data)
+{
+	unsigned int i;
+
+	for (i = 0; i < hctx->queue_depth; i++) {
+		struct request *rq = hctx->rqs[i];
+
+		init(data, hctx, rq, i);
+	}
+}
+
+void blk_mq_init_commands(struct request_queue *q,
+			  void (*init)(void *, struct blk_mq_hw_ctx *,
+					struct request *, unsigned int),
+			  void *data)
+{
+	struct blk_mq_hw_ctx *hctx;
+	unsigned int i;
+
+	queue_for_each_hw_ctx(q, hctx, i)
+		blk_mq_init_hw_commands(hctx, init, data);
+}
+EXPORT_SYMBOL(blk_mq_init_commands);
+
+static void blk_mq_free_rq_map(struct blk_mq_hw_ctx *hctx)
+{
+	struct page *page;
+
+	while (!list_empty(&hctx->page_list)) {
+		page = list_first_entry(&hctx->page_list, struct page, list);
+		list_del_init(&page->list);
+		__free_pages(page, page->private);
+	}
+
+	kfree(hctx->rqs);
+
+	if (hctx->tags)
+		blk_mq_free_tags(hctx->tags);
+}
+
+static size_t order_to_size(unsigned int order)
+{
+	size_t ret = PAGE_SIZE;
+
+	while (order--)
+		ret *= 2;
+
+	return ret;
+}
+
+static int blk_mq_init_rq_map(struct blk_mq_hw_ctx *hctx,
+			      unsigned int reserved_tags, int node)
+{
+	unsigned int i, j, entries_per_page, max_order = 4;
+	size_t rq_size, left;
+
+	INIT_LIST_HEAD(&hctx->page_list);
+
+	hctx->rqs = kmalloc_node(hctx->queue_depth * sizeof(struct request *),
+					GFP_KERNEL, node);
+	if (!hctx->rqs)
+		return -ENOMEM;
+
+	/*
+	 * rq_size is the size of the request plus driver payload, rounded
+	 * to the cacheline size
+	 */
+	rq_size = round_up(sizeof(struct request) + hctx->cmd_size,
+				cache_line_size());
+	left = rq_size * hctx->queue_depth;
+
+	for (i = 0; i < hctx->queue_depth;) {
+		int this_order = max_order;
+		struct page *page;
+		int to_do;
+		void *p;
+
+		while (left < order_to_size(this_order - 1) && this_order)
+			this_order--;
+
+		do {
+			page = alloc_pages_node(node, GFP_KERNEL, this_order);
+			if (page)
+				break;
+			if (!this_order--)
+				break;
+			if (order_to_size(this_order) < rq_size)
+				break;
+		} while (1);
+
+		if (!page)
+			break;
+
+		page->private = this_order;
+		list_add_tail(&page->list, &hctx->page_list);
+
+		p = page_address(page);
+		entries_per_page = order_to_size(this_order) / rq_size;
+		to_do = min(entries_per_page, hctx->queue_depth - i);
+		left -= to_do * rq_size;
+		for (j = 0; j < to_do; j++) {
+			hctx->rqs[i] = p;
+			blk_mq_rq_init(hctx, hctx->rqs[i]);
+			p += rq_size;
+			i++;
+		}
+	}
+
+	if (i < (reserved_tags + BLK_MQ_TAG_MIN))
+		goto err_rq_map;
+	else if (i != hctx->queue_depth) {
+		hctx->queue_depth = i;
+		pr_warn("%s: queue depth set to %u because of low memory\n",
+					__func__, i);
+	}
+
+	hctx->tags = blk_mq_init_tags(hctx->queue_depth, reserved_tags, node);
+	if (!hctx->tags) {
+err_rq_map:
+		blk_mq_free_rq_map(hctx);
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+static int blk_mq_init_hw_queues(struct request_queue *q,
+				 struct blk_mq_reg *reg, void *driver_data)
+{
+	struct blk_mq_hw_ctx *hctx;
+	unsigned int i, j;
+
+	/*
+	 * Initialize hardware queues
+	 */
+	queue_for_each_hw_ctx(q, hctx, i) {
+		unsigned int num_maps;
+		int node;
+
+		node = hctx->numa_node;
+		if (node == NUMA_NO_NODE)
+			node = hctx->numa_node = reg->numa_node;
+
+		INIT_DELAYED_WORK(&hctx->delayed_work, blk_mq_work_fn);
+		spin_lock_init(&hctx->lock);
+		INIT_LIST_HEAD(&hctx->dispatch);
+		hctx->queue = q;
+		hctx->queue_num = i;
+		hctx->flags = reg->flags;
+		hctx->queue_depth = reg->queue_depth;
+		hctx->cmd_size = reg->cmd_size;
+
+		blk_mq_init_cpu_notifier(&hctx->cpu_notifier,
+						blk_mq_hctx_notify, hctx);
+		blk_mq_register_cpu_notifier(&hctx->cpu_notifier);
+
+		if (blk_mq_init_rq_map(hctx, reg->reserved_tags, node))
+			break;
+
+		/*
+		 * Allocate space for all possible cpus to avoid allocation in
+		 * runtime
+		 */
+		hctx->ctxs = kmalloc_node(nr_cpu_ids * sizeof(void *),
+						GFP_KERNEL, node);
+		if (!hctx->ctxs)
+			break;
+
+		num_maps = ALIGN(nr_cpu_ids, BITS_PER_LONG) / BITS_PER_LONG;
+		hctx->ctx_map = kzalloc_node(num_maps * sizeof(unsigned long),
+						GFP_KERNEL, node);
+		if (!hctx->ctx_map)
+			break;
+
+		hctx->nr_ctx_map = num_maps;
+		hctx->nr_ctx = 0;
+
+		if (reg->ops->init_hctx &&
+		    reg->ops->init_hctx(hctx, driver_data, i))
+			break;
+	}
+
+	if (i == q->nr_hw_queues)
+		return 0;
+
+	/*
+	 * Init failed
+	 */
+	queue_for_each_hw_ctx(q, hctx, j) {
+		if (i == j)
+			break;
+
+		if (reg->ops->exit_hctx)
+			reg->ops->exit_hctx(hctx, j);
+
+		blk_mq_unregister_cpu_notifier(&hctx->cpu_notifier);
+		blk_mq_free_rq_map(hctx);
+		kfree(hctx->ctxs);
+	}
+
+	return 1;
+}
+
+static void blk_mq_init_cpu_queues(struct request_queue *q,
+				   unsigned int nr_hw_queues)
+{
+	unsigned int i;
+
+	for_each_possible_cpu(i) {
+		struct blk_mq_ctx *__ctx = per_cpu_ptr(q->queue_ctx, i);
+		struct blk_mq_hw_ctx *hctx;
+
+		memset(__ctx, 0, sizeof(*__ctx));
+		__ctx->cpu = i;
+		spin_lock_init(&__ctx->lock);
+		INIT_LIST_HEAD(&__ctx->rq_list);
+		__ctx->queue = q;
+
+		/* If the cpu isn't online, the cpu is mapped to first hctx */
+		hctx = q->mq_ops->map_queue(q, i);
+		hctx->nr_ctx++;
+
+		if (!cpu_online(i))
+			continue;
+
+		/*
+		 * Set local node, IFF we have more than one hw queue. If
+		 * not, we remain on the home node of the device
+		 */
+		if (nr_hw_queues > 1 && hctx->numa_node == NUMA_NO_NODE)
+			hctx->numa_node = cpu_to_node(i);
+	}
+}
+
+static void blk_mq_map_swqueue(struct request_queue *q)
+{
+	unsigned int i;
+	struct blk_mq_hw_ctx *hctx;
+	struct blk_mq_ctx *ctx;
+
+	queue_for_each_hw_ctx(q, hctx, i) {
+		hctx->nr_ctx = 0;
+	}
+
+	/*
+	 * Map software to hardware queues
+	 */
+	queue_for_each_ctx(q, ctx, i) {
+		/* If the cpu isn't online, the cpu is mapped to first hctx */
+		hctx = q->mq_ops->map_queue(q, i);
+		ctx->index_hw = hctx->nr_ctx;
+		hctx->ctxs[hctx->nr_ctx++] = ctx;
+	}
+}
+
+struct request_queue *blk_mq_init_queue(struct blk_mq_reg *reg,
+					void *driver_data)
+{
+	struct blk_mq_hw_ctx **hctxs;
+	struct blk_mq_ctx *ctx;
+	struct request_queue *q;
+	int i;
+
+	if (!reg->nr_hw_queues ||
+	    !reg->ops->queue_rq || !reg->ops->map_queue ||
+	    !reg->ops->alloc_hctx || !reg->ops->free_hctx)
+		return ERR_PTR(-EINVAL);
+
+	if (!reg->queue_depth)
+		reg->queue_depth = BLK_MQ_MAX_DEPTH;
+	else if (reg->queue_depth > BLK_MQ_MAX_DEPTH) {
+		pr_err("blk-mq: queuedepth too large (%u)\n", reg->queue_depth);
+		reg->queue_depth = BLK_MQ_MAX_DEPTH;
+	}
+
+	if (reg->queue_depth < (reg->reserved_tags + BLK_MQ_TAG_MIN))
+		return ERR_PTR(-EINVAL);
+
+	ctx = alloc_percpu(struct blk_mq_ctx);
+	if (!ctx)
+		return ERR_PTR(-ENOMEM);
+
+	hctxs = kmalloc_node(reg->nr_hw_queues * sizeof(*hctxs), GFP_KERNEL,
+			reg->numa_node);
+
+	if (!hctxs)
+		goto err_percpu;
+
+	for (i = 0; i < reg->nr_hw_queues; i++) {
+		hctxs[i] = reg->ops->alloc_hctx(reg, i);
+		if (!hctxs[i])
+			goto err_hctxs;
+
+		hctxs[i]->numa_node = NUMA_NO_NODE;
+		hctxs[i]->queue_num = i;
+	}
+
+	q = blk_alloc_queue_node(GFP_KERNEL, reg->numa_node);
+	if (!q)
+		goto err_hctxs;
+
+	q->mq_map = blk_mq_make_queue_map(reg);
+	if (!q->mq_map)
+		goto err_map;
+
+	setup_timer(&q->timeout, blk_mq_rq_timer, (unsigned long) q);
+	blk_queue_rq_timeout(q, 30000);
+
+	q->nr_queues = nr_cpu_ids;
+	q->nr_hw_queues = reg->nr_hw_queues;
+
+	q->queue_ctx = ctx;
+	q->queue_hw_ctx = hctxs;
+
+	q->mq_ops = reg->ops;
+
+	blk_queue_make_request(q, blk_mq_make_request);
+	blk_queue_rq_timed_out(q, reg->ops->timeout);
+	if (reg->timeout)
+		blk_queue_rq_timeout(q, reg->timeout);
+
+	blk_mq_init_flush(q);
+	blk_mq_init_cpu_queues(q, reg->nr_hw_queues);
+
+	if (blk_mq_init_hw_queues(q, reg, driver_data))
+		goto err_hw;
+
+	blk_mq_map_swqueue(q);
+
+	mutex_lock(&all_q_mutex);
+	list_add_tail(&q->all_q_node, &all_q_list);
+	mutex_unlock(&all_q_mutex);
+
+	return q;
+err_hw:
+	kfree(q->mq_map);
+err_map:
+	blk_cleanup_queue(q);
+err_hctxs:
+	for (i = 0; i < reg->nr_hw_queues; i++) {
+		if (!hctxs[i])
+			break;
+		reg->ops->free_hctx(hctxs[i], i);
+	}
+	kfree(hctxs);
+err_percpu:
+	free_percpu(ctx);
+	return ERR_PTR(-ENOMEM);
+}
+EXPORT_SYMBOL(blk_mq_init_queue);
+
+void blk_mq_free_queue(struct request_queue *q)
+{
+	struct blk_mq_hw_ctx *hctx;
+	int i;
+
+	queue_for_each_hw_ctx(q, hctx, i) {
+		cancel_delayed_work_sync(&hctx->delayed_work);
+		kfree(hctx->ctx_map);
+		kfree(hctx->ctxs);
+		blk_mq_free_rq_map(hctx);
+		blk_mq_unregister_cpu_notifier(&hctx->cpu_notifier);
+		if (q->mq_ops->exit_hctx)
+			q->mq_ops->exit_hctx(hctx, i);
+		q->mq_ops->free_hctx(hctx, i);
+	}
+
+	free_percpu(q->queue_ctx);
+	kfree(q->queue_hw_ctx);
+	kfree(q->mq_map);
+
+	q->queue_ctx = NULL;
+	q->queue_hw_ctx = NULL;
+	q->mq_map = NULL;
+
+	mutex_lock(&all_q_mutex);
+	list_del_init(&q->all_q_node);
+	mutex_unlock(&all_q_mutex);
+}
+EXPORT_SYMBOL(blk_mq_free_queue);
+
+/* Basically redo blk_mq_init_queue with queue frozen */
+static void __cpuinit blk_mq_queue_reinit(struct request_queue *q)
+{
+	blk_mq_freeze_queue(q);
+
+	blk_mq_update_queue_map(q->mq_map, q->nr_hw_queues);
+
+	/*
+	 * redo blk_mq_init_cpu_queues and blk_mq_init_hw_queues. FIXME: maybe
+	 * we should change hctx numa_node according to new topology (this
+	 * involves free and re-allocate memory, worthy doing?)
+	 */
+
+	blk_mq_map_swqueue(q);
+
+	blk_mq_unfreeze_queue(q);
+}
+
+static int __cpuinit blk_mq_queue_reinit_notify(struct notifier_block *nb,
+		unsigned long action, void *hcpu)
+{
+	struct request_queue *q;
+
+	/*
+	 * Before new mapping is established, hotadded cpu might already start
+	 * handling requests. This doesn't break anything as we map offline
+	 * CPUs to first hardware queue. We will re-init queue below to get
+	 * optimal settings.
+	 */
+	if (action != CPU_DEAD && action != CPU_DEAD_FROZEN &&
+	    action != CPU_ONLINE && action != CPU_ONLINE_FROZEN)
+		return NOTIFY_OK;
+
+	mutex_lock(&all_q_mutex);
+	list_for_each_entry(q, &all_q_list, all_q_node)
+		blk_mq_queue_reinit(q);
+	mutex_unlock(&all_q_mutex);
+	return NOTIFY_OK;
+}
+
+static int __init blk_mq_init(void)
+{
+	unsigned int i;
+
+	for_each_possible_cpu(i)
+		init_llist_head(&per_cpu(ipi_lists, i));
+
+	blk_mq_cpu_init();
+
+	/* Must be called after percpu_counter_hotcpu_callback() */
+	hotcpu_notifier(blk_mq_queue_reinit_notify, -10);
+
+	return 0;
+}
+subsys_initcall(blk_mq_init);
diff --git a/block/blk-mq.h b/block/blk-mq.h
new file mode 100644
index 000000000000..52bf1f96a2c2
--- /dev/null
+++ b/block/blk-mq.h
@@ -0,0 +1,52 @@
+#ifndef INT_BLK_MQ_H
+#define INT_BLK_MQ_H
+
+struct blk_mq_ctx {
+	struct {
+		spinlock_t		lock;
+		struct list_head	rq_list;
+	}  ____cacheline_aligned_in_smp;
+
+	unsigned int		cpu;
+	unsigned int		index_hw;
+	unsigned int		ipi_redirect;
+
+	/* incremented at dispatch time */
+	unsigned long		rq_dispatched[2];
+	unsigned long		rq_merged;
+
+	/* incremented at completion time */
+	unsigned long		____cacheline_aligned_in_smp rq_completed[2];
+
+	struct request_queue	*queue;
+	struct kobject		kobj;
+};
+
+void __blk_mq_end_io(struct request *rq, int error);
+void blk_mq_complete_request(struct request *rq, int error);
+void blk_mq_run_request(struct request *rq, bool run_queue, bool async);
+void blk_mq_run_hw_queue(struct blk_mq_hw_ctx *hctx, bool async);
+void blk_mq_init_flush(struct request_queue *q);
+
+/*
+ * CPU hotplug helpers
+ */
+struct blk_mq_cpu_notifier;
+void blk_mq_init_cpu_notifier(struct blk_mq_cpu_notifier *notifier,
+			      void (*fn)(void *, unsigned long, unsigned int),
+			      void *data);
+void blk_mq_register_cpu_notifier(struct blk_mq_cpu_notifier *notifier);
+void blk_mq_unregister_cpu_notifier(struct blk_mq_cpu_notifier *notifier);
+void blk_mq_cpu_init(void);
+DECLARE_PER_CPU(struct llist_head, ipi_lists);
+
+/*
+ * CPU -> queue mappings
+ */
+struct blk_mq_reg;
+extern unsigned int *blk_mq_make_queue_map(struct blk_mq_reg *reg);
+extern int blk_mq_update_queue_map(unsigned int *map, unsigned int nr_queues);
+
+void blk_mq_add_timer(struct request *rq);
+
+#endif
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 3aa5b195f4dd..4f8c4d90ec73 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -7,6 +7,7 @@
 #include <linux/bio.h>
 #include <linux/blkdev.h>
 #include <linux/blktrace_api.h>
+#include <linux/blk-mq.h>
 
 #include "blk.h"
 #include "blk-cgroup.h"
@@ -542,6 +543,11 @@ static void blk_release_queue(struct kobject *kobj)
 	if (q->queue_tags)
 		__blk_queue_free_tags(q);
 
+	percpu_counter_destroy(&q->mq_usage_counter);
+
+	if (q->mq_ops)
+		blk_mq_free_queue(q);
+
 	blk_trace_shutdown(q);
 
 	bdi_destroy(&q->backing_dev_info);
@@ -575,6 +581,7 @@ int blk_register_queue(struct gendisk *disk)
 	 * bypass from queue allocation.
 	 */
 	blk_queue_bypass_end(q);
+	queue_flag_set_unlocked(QUEUE_FLAG_INIT_DONE, q);
 
 	ret = blk_trace_init_sysfs(dev);
 	if (ret)
@@ -588,6 +595,9 @@ int blk_register_queue(struct gendisk *disk)
 
 	kobject_uevent(&q->kobj, KOBJ_ADD);
 
+	if (q->mq_ops)
+		blk_mq_register_disk(disk);
+
 	if (!q->request_fn)
 		return 0;
 
@@ -610,6 +620,9 @@ void blk_unregister_queue(struct gendisk *disk)
 	if (WARN_ON(!q))
 		return;
 
+	if (q->mq_ops)
+		blk_mq_unregister_disk(disk);
+
 	if (q->request_fn)
 		elv_unregister_queue(q);
 
diff --git a/block/blk-timeout.c b/block/blk-timeout.c
index 65f103563969..22846cf3595a 100644
--- a/block/blk-timeout.c
+++ b/block/blk-timeout.c
@@ -7,6 +7,7 @@
 #include <linux/fault-inject.h>
 
 #include "blk.h"
+#include "blk-mq.h"
 
 #ifdef CONFIG_FAIL_IO_TIMEOUT
 
@@ -88,11 +89,18 @@ static void blk_rq_timed_out(struct request *req)
 		ret = q->rq_timed_out_fn(req);
 	switch (ret) {
 	case BLK_EH_HANDLED:
-		__blk_complete_request(req);
+		/* Can we use req->errors here? */
+		if (q->mq_ops)
+			blk_mq_complete_request(req, req->errors);
+		else
+			__blk_complete_request(req);
 		break;
 	case BLK_EH_RESET_TIMER:
 		blk_clear_rq_complete(req);
-		blk_add_timer(req);
+		if (q->mq_ops)
+			blk_mq_add_timer(req);
+		else
+			blk_add_timer(req);
 		break;
 	case BLK_EH_NOT_HANDLED:
 		/*
@@ -108,6 +116,23 @@ static void blk_rq_timed_out(struct request *req)
 	}
 }
 
+void blk_rq_check_expired(struct request *rq, unsigned long *next_timeout,
+			  unsigned int *next_set)
+{
+	if (time_after_eq(jiffies, rq->deadline)) {
+		list_del_init(&rq->timeout_list);
+
+		/*
+		 * Check if we raced with end io completion
+		 */
+		if (!blk_mark_rq_complete(rq))
+			blk_rq_timed_out(rq);
+	} else if (!*next_set || time_after(*next_timeout, rq->deadline)) {
+		*next_timeout = rq->deadline;
+		*next_set = 1;
+	}
+}
+
 void blk_rq_timed_out_timer(unsigned long data)
 {
 	struct request_queue *q = (struct request_queue *) data;
@@ -117,21 +142,8 @@ void blk_rq_timed_out_timer(unsigned long data)
 
 	spin_lock_irqsave(q->queue_lock, flags);
 
-	list_for_each_entry_safe(rq, tmp, &q->timeout_list, timeout_list) {
-		if (time_after_eq(jiffies, rq->deadline)) {
-			list_del_init(&rq->timeout_list);
-
-			/*
-			 * Check if we raced with end io completion
-			 */
-			if (blk_mark_rq_complete(rq))
-				continue;
-			blk_rq_timed_out(rq);
-		} else if (!next_set || time_after(next, rq->deadline)) {
-			next = rq->deadline;
-			next_set = 1;
-		}
-	}
+	list_for_each_entry_safe(rq, tmp, &q->timeout_list, timeout_list)
+		blk_rq_check_expired(rq, &next, &next_set);
 
 	if (next_set)
 		mod_timer(&q->timeout, round_jiffies_up(next));
@@ -157,15 +169,7 @@ void blk_abort_request(struct request *req)
 }
 EXPORT_SYMBOL_GPL(blk_abort_request);
 
-/**
- * blk_add_timer - Start timeout timer for a single request
- * @req:	request that is about to start running.
- *
- * Notes:
- *    Each request has its own timer, and as it is added to the queue, we
- *    set up the timer. When the request completes, we cancel the timer.
- */
-void blk_add_timer(struct request *req)
+void __blk_add_timer(struct request *req, struct list_head *timeout_list)
 {
 	struct request_queue *q = req->q;
 	unsigned long expiry;
@@ -184,7 +188,8 @@ void blk_add_timer(struct request *req)
 		req->timeout = q->rq_timeout;
 
 	req->deadline = jiffies + req->timeout;
-	list_add_tail(&req->timeout_list, &q->timeout_list);
+	if (timeout_list)
+		list_add_tail(&req->timeout_list, timeout_list);
 
 	/*
 	 * If the timer isn't already pending or this timeout is earlier
@@ -196,5 +201,19 @@ void blk_add_timer(struct request *req)
 	if (!timer_pending(&q->timeout) ||
 	    time_before(expiry, q->timeout.expires))
 		mod_timer(&q->timeout, expiry);
+
+}
+
+/**
+ * blk_add_timer - Start timeout timer for a single request
+ * @req:	request that is about to start running.
+ *
+ * Notes:
+ *    Each request has its own timer, and as it is added to the queue, we
+ *    set up the timer. When the request completes, we cancel the timer.
+ */
+void blk_add_timer(struct request *req)
+{
+	__blk_add_timer(req, &req->q->timeout_list);
 }
 
diff --git a/block/blk.h b/block/blk.h
index e837b8f619b7..c90e1d8f7a2b 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -10,6 +10,7 @@
 #define BLK_BATCH_REQ	32
 
 extern struct kmem_cache *blk_requestq_cachep;
+extern struct kmem_cache *request_cachep;
 extern struct kobj_type blk_queue_ktype;
 extern struct ida blk_queue_ida;
 
@@ -34,14 +35,30 @@ bool __blk_end_bidi_request(struct request *rq, int error,
 			    unsigned int nr_bytes, unsigned int bidi_bytes);
 
 void blk_rq_timed_out_timer(unsigned long data);
+void blk_rq_check_expired(struct request *rq, unsigned long *next_timeout,
+			  unsigned int *next_set);
+void __blk_add_timer(struct request *req, struct list_head *timeout_list);
 void blk_delete_timer(struct request *);
 void blk_add_timer(struct request *);
 
+
+bool bio_attempt_front_merge(struct request_queue *q, struct request *req,
+			     struct bio *bio);
+bool bio_attempt_back_merge(struct request_queue *q, struct request *req,
+			    struct bio *bio);
+bool blk_attempt_plug_merge(struct request_queue *q, struct bio *bio,
+			    unsigned int *request_count);
+
+void blk_account_io_start(struct request *req, bool new_io);
+void blk_account_io_completion(struct request *req, unsigned int bytes);
+void blk_account_io_done(struct request *req);
+
 /*
  * Internal atomic flags for request handling
  */
 enum rq_atomic_flags {
 	REQ_ATOM_COMPLETE = 0,
+	REQ_ATOM_STARTED,
 };
 
 /*
diff --git a/include/linux/bio.h b/include/linux/bio.h
index ec48bac5b039..4c2775443dcf 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -419,6 +419,8 @@ static inline void bio_list_init(struct bio_list *bl)
 	bl->head = bl->tail = NULL;
 }
 
+#define BIO_EMPTY_LIST	{ NULL, NULL }
+
 #define bio_list_for_each(bio, bl) \
 	for (bio = (bl)->head; bio; bio = bio->bi_next)
 
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
new file mode 100644
index 000000000000..746042ff321a
--- /dev/null
+++ b/include/linux/blk-mq.h
@@ -0,0 +1,182 @@
+#ifndef BLK_MQ_H
+#define BLK_MQ_H
+
+#include <linux/blkdev.h>
+
+struct blk_mq_tags;
+
+struct blk_mq_cpu_notifier {
+	struct list_head list;
+	void *data;
+	void (*notify)(void *data, unsigned long action, unsigned int cpu);
+};
+
+struct blk_mq_hw_ctx {
+	struct {
+		spinlock_t		lock;
+		struct list_head	dispatch;
+	} ____cacheline_aligned_in_smp;
+
+	unsigned long		state;		/* BLK_MQ_S_* flags */
+	struct delayed_work	delayed_work;
+
+	unsigned long		flags;		/* BLK_MQ_F_* flags */
+
+	struct request_queue	*queue;
+	unsigned int		queue_num;
+
+	void			*driver_data;
+
+	unsigned int		nr_ctx;
+	struct blk_mq_ctx	**ctxs;
+	unsigned int 		nr_ctx_map;
+	unsigned long		*ctx_map;
+
+	struct request		**rqs;
+	struct list_head	page_list;
+	struct blk_mq_tags	*tags;
+
+	unsigned long		queued;
+	unsigned long		run;
+#define BLK_MQ_MAX_DISPATCH_ORDER	10
+	unsigned long		dispatched[BLK_MQ_MAX_DISPATCH_ORDER];
+
+	unsigned int		queue_depth;
+	unsigned int		numa_node;
+	unsigned int		cmd_size;	/* per-request extra data */
+
+	struct blk_mq_cpu_notifier	cpu_notifier;
+	struct kobject		kobj;
+};
+
+struct blk_mq_reg {
+	struct blk_mq_ops	*ops;
+	unsigned int		nr_hw_queues;
+	unsigned int		queue_depth;
+	unsigned int		reserved_tags;
+	unsigned int		cmd_size;	/* per-request extra data */
+	int			numa_node;
+	unsigned int		timeout;
+	unsigned int		flags;		/* BLK_MQ_F_* */
+};
+
+typedef int (queue_rq_fn)(struct blk_mq_hw_ctx *, struct request *);
+typedef struct blk_mq_hw_ctx *(map_queue_fn)(struct request_queue *, const int);
+typedef struct blk_mq_hw_ctx *(alloc_hctx_fn)(struct blk_mq_reg *,unsigned int);
+typedef void (free_hctx_fn)(struct blk_mq_hw_ctx *, unsigned int);
+typedef int (init_hctx_fn)(struct blk_mq_hw_ctx *, void *, unsigned int);
+typedef void (exit_hctx_fn)(struct blk_mq_hw_ctx *, unsigned int);
+
+struct blk_mq_ops {
+	/*
+	 * Queue request
+	 */
+	queue_rq_fn		*queue_rq;
+
+	/*
+	 * Map to specific hardware queue
+	 */
+	map_queue_fn		*map_queue;
+
+	/*
+	 * Called on request timeout
+	 */
+	rq_timed_out_fn		*timeout;
+
+	/*
+	 * Override for hctx allocations (should probably go)
+	 */
+	alloc_hctx_fn		*alloc_hctx;
+	free_hctx_fn		*free_hctx;
+
+	/*
+	 * Called when the block layer side of a hardware queue has been
+	 * set up, allowing the driver to allocate/init matching structures.
+	 * Ditto for exit/teardown.
+	 */
+	init_hctx_fn		*init_hctx;
+	exit_hctx_fn		*exit_hctx;
+};
+
+enum {
+	BLK_MQ_RQ_QUEUE_OK	= 0,	/* queued fine */
+	BLK_MQ_RQ_QUEUE_BUSY	= 1,	/* requeue IO for later */
+	BLK_MQ_RQ_QUEUE_ERROR	= 2,	/* end IO with error */
+
+	BLK_MQ_F_SHOULD_MERGE	= 1 << 0,
+	BLK_MQ_F_SHOULD_SORT	= 1 << 1,
+	BLK_MQ_F_SHOULD_IPI	= 1 << 2,
+
+	BLK_MQ_S_STOPPED	= 1 << 0,
+
+	BLK_MQ_MAX_DEPTH	= 2048,
+};
+
+struct request_queue *blk_mq_init_queue(struct blk_mq_reg *, void *);
+void blk_mq_free_queue(struct request_queue *);
+int blk_mq_register_disk(struct gendisk *);
+void blk_mq_unregister_disk(struct gendisk *);
+void blk_mq_init_commands(struct request_queue *, void (*init)(void *data, struct blk_mq_hw_ctx *, struct request *, unsigned int), void *data);
+
+void blk_mq_flush_plug_list(struct blk_plug *plug, bool from_schedule);
+
+void blk_mq_insert_request(struct request_queue *, struct request *, bool);
+void blk_mq_run_queues(struct request_queue *q, bool async);
+void blk_mq_free_request(struct request *rq);
+bool blk_mq_can_queue(struct blk_mq_hw_ctx *);
+struct request *blk_mq_alloc_request(struct request_queue *q, int rw, gfp_t gfp);
+struct request *blk_mq_alloc_reserved_request(struct request_queue *q, int rw, gfp_t gfp);
+struct request *blk_mq_rq_from_tag(struct request_queue *q, unsigned int tag);
+
+struct blk_mq_hw_ctx *blk_mq_map_queue(struct request_queue *, const int ctx_index);
+struct blk_mq_hw_ctx *blk_mq_alloc_single_hw_queue(struct blk_mq_reg *, unsigned int);
+void blk_mq_free_single_hw_queue(struct blk_mq_hw_ctx *, unsigned int);
+
+void blk_mq_end_io(struct request *rq, int error);
+
+void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx);
+void blk_mq_start_hw_queue(struct blk_mq_hw_ctx *hctx);
+void blk_mq_start_stopped_hw_queues(struct request_queue *q);
+
+/*
+ * Driver command data is immediately after the request. So subtract request
+ * size to get back to the original request.
+ */
+static inline struct request *blk_mq_rq_from_pdu(void *pdu)
+{
+	return pdu - sizeof(struct request);
+}
+static inline void *blk_mq_rq_to_pdu(struct request *rq)
+{
+	return (void *) rq + sizeof(*rq);
+}
+
+static inline struct request *blk_mq_tag_to_rq(struct blk_mq_hw_ctx *hctx,
+					       unsigned int tag)
+{
+	return hctx->rqs[tag];
+}
+
+#define queue_for_each_hw_ctx(q, hctx, i)				\
+	for ((i) = 0, hctx = (q)->queue_hw_ctx[0];			\
+	     (i) < (q)->nr_hw_queues; (i)++, hctx = (q)->queue_hw_ctx[i])
+
+#define queue_for_each_ctx(q, ctx, i)					\
+	for ((i) = 0, ctx = per_cpu_ptr((q)->queue_ctx, 0);		\
+	     (i) < (q)->nr_queues; (i)++, ctx = per_cpu_ptr(q->queue_ctx, (i)))
+
+#define hctx_for_each_ctx(hctx, ctx, i)					\
+	for ((i) = 0, ctx = (hctx)->ctxs[0];				\
+	     (i) < (hctx)->nr_ctx; (i)++, ctx = (hctx)->ctxs[(i)])
+
+#define blk_ctx_sum(q, sum)						\
+({									\
+	struct blk_mq_ctx *__x;						\
+	unsigned int __ret = 0, __i;					\
+									\
+	queue_for_each_ctx((q), __x, __i)				\
+		__ret += sum;						\
+	__ret;								\
+})
+
+#endif
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index c26801e14788..238ef0ed62f8 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -178,6 +178,7 @@ enum rq_flag_bits {
 	__REQ_MIXED_MERGE,	/* merge of different types, fail separately */
 	__REQ_KERNEL, 		/* direct IO to kernel pages */
 	__REQ_PM,		/* runtime pm request */
+	__REQ_END,		/* last of chain of requests */
 	__REQ_NR_BITS,		/* stops here */
 };
 
@@ -229,5 +230,6 @@ enum rq_flag_bits {
 #define REQ_SECURE		(1ULL << __REQ_SECURE)
 #define REQ_KERNEL		(1ULL << __REQ_KERNEL)
 #define REQ_PM			(1ULL << __REQ_PM)
+#define REQ_END			(1ULL << __REQ_END)
 
 #endif /* __LINUX_BLK_TYPES_H */
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 0a8da96274c3..f26ec20f6354 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -8,6 +8,7 @@
 #include <linux/major.h>
 #include <linux/genhd.h>
 #include <linux/list.h>
+#include <linux/llist.h>
 #include <linux/timer.h>
 #include <linux/workqueue.h>
 #include <linux/pagemap.h>
@@ -94,10 +95,17 @@ enum rq_cmd_type_bits {
  * as well!
  */
 struct request {
-	struct list_head queuelist;
-	struct call_single_data csd;
+	union {
+		struct list_head queuelist;
+		struct llist_node ll_list;
+	};
+	union {
+		struct call_single_data csd;
+		struct work_struct mq_flush_data;
+	};
 
 	struct request_queue *q;
+	struct blk_mq_ctx *mq_ctx;
 
 	u64 cmd_flags;
 	enum rq_cmd_type_bits cmd_type;
@@ -213,6 +221,8 @@ struct request_pm_state
 
 #include <linux/elevator.h>
 
+struct blk_queue_ctx;
+
 typedef void (request_fn_proc) (struct request_queue *q);
 typedef void (make_request_fn) (struct request_queue *q, struct bio *bio);
 typedef int (prep_rq_fn) (struct request_queue *, struct request *);
@@ -311,6 +321,18 @@ struct request_queue {
 	dma_drain_needed_fn	*dma_drain_needed;
 	lld_busy_fn		*lld_busy_fn;
 
+	struct blk_mq_ops	*mq_ops;
+
+	unsigned int		*mq_map;
+
+	/* sw queues */
+	struct blk_mq_ctx	*queue_ctx;
+	unsigned int		nr_queues;
+
+	/* hw dispatch queues */
+	struct blk_mq_hw_ctx	**queue_hw_ctx;
+	unsigned int		nr_hw_queues;
+
 	/*
 	 * Dispatch queue sorting
 	 */
@@ -359,6 +381,11 @@ struct request_queue {
 	 */
 	struct kobject kobj;
 
+	/*
+	 * mq queue kobject
+	 */
+	struct kobject mq_kobj;
+
 #ifdef CONFIG_PM_RUNTIME
 	struct device		*dev;
 	int			rpm_status;
@@ -423,7 +450,13 @@ struct request_queue {
 	unsigned long		flush_pending_since;
 	struct list_head	flush_queue[2];
 	struct list_head	flush_data_in_flight;
-	struct request		flush_rq;
+	union {
+		struct request	flush_rq;
+		struct {
+			spinlock_t mq_flush_lock;
+			struct work_struct mq_flush_work;
+		};
+	};
 
 	struct mutex		sysfs_lock;
 
@@ -435,14 +468,14 @@ struct request_queue {
 	struct bsg_class_device bsg_dev;
 #endif
 
-#ifdef CONFIG_BLK_CGROUP
-	struct list_head	all_q_node;
-#endif
 #ifdef CONFIG_BLK_DEV_THROTTLING
 	/* Throttle data */
 	struct throtl_data *td;
 #endif
 	struct rcu_head		rcu_head;
+	wait_queue_head_t	mq_freeze_wq;
+	struct percpu_counter	mq_usage_counter;
+	struct list_head	all_q_node;
 };
 
 #define QUEUE_FLAG_QUEUED	1	/* uses generic tag queueing */
@@ -465,6 +498,7 @@ struct request_queue {
 #define QUEUE_FLAG_SECDISCARD  17	/* supports SECDISCARD */
 #define QUEUE_FLAG_SAME_FORCE  18	/* force complete on same CPU */
 #define QUEUE_FLAG_DEAD        19	/* queue tear-down finished */
+#define QUEUE_FLAG_INIT_DONE   20	/* queue is initialized */
 
 #define QUEUE_FLAG_DEFAULT	((1 << QUEUE_FLAG_IO_STAT) |		\
 				 (1 << QUEUE_FLAG_STACKABLE)	|	\
@@ -537,6 +571,7 @@ static inline void queue_flag_clear(unsigned int flag, struct request_queue *q)
 #define blk_queue_dying(q)	test_bit(QUEUE_FLAG_DYING, &(q)->queue_flags)
 #define blk_queue_dead(q)	test_bit(QUEUE_FLAG_DEAD, &(q)->queue_flags)
 #define blk_queue_bypass(q)	test_bit(QUEUE_FLAG_BYPASS, &(q)->queue_flags)
+#define blk_queue_init_done(q)	test_bit(QUEUE_FLAG_INIT_DONE, &(q)->queue_flags)
 #define blk_queue_nomerges(q)	test_bit(QUEUE_FLAG_NOMERGES, &(q)->queue_flags)
 #define blk_queue_noxmerges(q)	\
 	test_bit(QUEUE_FLAG_NOXMERGES, &(q)->queue_flags)
@@ -1011,6 +1046,7 @@ static inline void blk_post_runtime_resume(struct request_queue *q, int err) {}
 struct blk_plug {
 	unsigned long magic; /* detect uninitialized use-cases */
 	struct list_head list; /* requests */
+	struct list_head mq_list; /* blk-mq requests */
 	struct list_head cb_list; /* md requires an unplug callback */
 };
 #define BLK_MAX_REQUEST_COUNT 16
@@ -1048,7 +1084,10 @@ static inline bool blk_needs_flush_plug(struct task_struct *tsk)
 {
 	struct blk_plug *plug = tsk->plug;
 
-	return plug && (!list_empty(&plug->list) || !list_empty(&plug->cb_list));
+	return plug &&
+		(!list_empty(&plug->list) ||
+		 !list_empty(&plug->mq_list) ||
+		 !list_empty(&plug->cb_list));
 }
 
 /*
@@ -1323,6 +1362,7 @@ static inline void put_dev_sector(Sector p)
 
 struct work_struct;
 int kblockd_schedule_work(struct request_queue *q, struct work_struct *work);
+int kblockd_schedule_delayed_work(struct request_queue *q, struct delayed_work *dwork, unsigned long delay);
 
 #ifdef CONFIG_BLK_CGROUP
 /*
-- 
cgit 


From f2298c0403b0dfcaef637eba0c02c4a06d7a25ab Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Fri, 25 Oct 2013 11:52:25 +0100
Subject: null_blk: multi queue aware block test driver

A driver that simply completes IO it receives, it does no
transfers. Written to fascilitate testing of the blk-mq code.
It supports various module options to use either bio queueing,
rq queueing, or mq mode.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/Kconfig    |   3 +
 drivers/block/Makefile   |   1 +
 drivers/block/null_blk.c | 635 +++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 639 insertions(+)
 create mode 100644 drivers/block/null_blk.c

diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index e07a5fd58ad7..4682546c5da7 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -15,6 +15,9 @@ menuconfig BLK_DEV
 
 if BLK_DEV
 
+config BLK_DEV_NULL_BLK
+	tristate "Null test block driver"
+
 config BLK_DEV_FD
 	tristate "Normal floppy disk support"
 	depends on ARCH_MAY_HAVE_PC_FDC
diff --git a/drivers/block/Makefile b/drivers/block/Makefile
index ca07399a8d99..03b3b4a2bd8a 100644
--- a/drivers/block/Makefile
+++ b/drivers/block/Makefile
@@ -41,6 +41,7 @@ obj-$(CONFIG_BLK_DEV_RBD)     += rbd.o
 obj-$(CONFIG_BLK_DEV_PCIESSD_MTIP32XX)	+= mtip32xx/
 
 obj-$(CONFIG_BLK_DEV_RSXX) += rsxx/
+obj-$(CONFIG_BLK_DEV_NULL_BLK)	+= null_blk.o
 
 nvme-y		:= nvme-core.o nvme-scsi.o
 swim_mod-y	:= swim.o swim_asm.o
diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c
new file mode 100644
index 000000000000..b5d842370cc9
--- /dev/null
+++ b/drivers/block/null_blk.c
@@ -0,0 +1,635 @@
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/blkdev.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/blk-mq.h>
+#include <linux/hrtimer.h>
+
+struct nullb_cmd {
+	struct list_head list;
+	struct llist_node ll_list;
+	struct call_single_data csd;
+	struct request *rq;
+	struct bio *bio;
+	unsigned int tag;
+	struct nullb_queue *nq;
+};
+
+struct nullb_queue {
+	unsigned long *tag_map;
+	wait_queue_head_t wait;
+	unsigned int queue_depth;
+
+	struct nullb_cmd *cmds;
+};
+
+struct nullb {
+	struct list_head list;
+	unsigned int index;
+	struct request_queue *q;
+	struct gendisk *disk;
+	struct hrtimer timer;
+	unsigned int queue_depth;
+	spinlock_t lock;
+
+	struct nullb_queue *queues;
+	unsigned int nr_queues;
+};
+
+static LIST_HEAD(nullb_list);
+static struct mutex lock;
+static int null_major;
+static int nullb_indexes;
+
+struct completion_queue {
+	struct llist_head list;
+	struct hrtimer timer;
+};
+
+/*
+ * These are per-cpu for now, they will need to be configured by the
+ * complete_queues parameter and appropriately mapped.
+ */
+static DEFINE_PER_CPU(struct completion_queue, completion_queues);
+
+enum {
+	NULL_IRQ_NONE		= 0,
+	NULL_IRQ_SOFTIRQ	= 1,
+	NULL_IRQ_TIMER		= 2,
+
+	NULL_Q_BIO		= 0,
+	NULL_Q_RQ		= 1,
+	NULL_Q_MQ		= 2,
+};
+
+static int submit_queues = 1;
+module_param(submit_queues, int, S_IRUGO);
+MODULE_PARM_DESC(submit_queues, "Number of submission queues");
+
+static int home_node = NUMA_NO_NODE;
+module_param(home_node, int, S_IRUGO);
+MODULE_PARM_DESC(home_node, "Home node for the device");
+
+static int queue_mode = NULL_Q_MQ;
+module_param(queue_mode, int, S_IRUGO);
+MODULE_PARM_DESC(use_mq, "Use blk-mq interface (0=bio,1=rq,2=multiqueue)");
+
+static int gb = 250;
+module_param(gb, int, S_IRUGO);
+MODULE_PARM_DESC(gb, "Size in GB");
+
+static int bs = 512;
+module_param(bs, int, S_IRUGO);
+MODULE_PARM_DESC(bs, "Block size (in bytes)");
+
+static int nr_devices = 2;
+module_param(nr_devices, int, S_IRUGO);
+MODULE_PARM_DESC(nr_devices, "Number of devices to register");
+
+static int irqmode = NULL_IRQ_SOFTIRQ;
+module_param(irqmode, int, S_IRUGO);
+MODULE_PARM_DESC(irqmode, "IRQ completion handler. 0-none, 1-softirq, 2-timer");
+
+static int completion_nsec = 10000;
+module_param(completion_nsec, int, S_IRUGO);
+MODULE_PARM_DESC(completion_nsec, "Time in ns to complete a request in hardware. Default: 10,000ns");
+
+static int hw_queue_depth = 64;
+module_param(hw_queue_depth, int, S_IRUGO);
+MODULE_PARM_DESC(hw_queue_depth, "Queue depth for each hardware queue. Default: 64");
+
+static bool use_per_node_hctx = true;
+module_param(use_per_node_hctx, bool, S_IRUGO);
+MODULE_PARM_DESC(use_per_node_hctx, "Use per-node allocation for hardware context queues. Default: true");
+
+static void put_tag(struct nullb_queue *nq, unsigned int tag)
+{
+	clear_bit_unlock(tag, nq->tag_map);
+
+	if (waitqueue_active(&nq->wait))
+		wake_up(&nq->wait);
+}
+
+static unsigned int get_tag(struct nullb_queue *nq)
+{
+	unsigned int tag;
+
+	do {
+		tag = find_first_zero_bit(nq->tag_map, nq->queue_depth);
+		if (tag >= nq->queue_depth)
+			return -1U;
+	} while (test_and_set_bit_lock(tag, nq->tag_map));
+
+	return tag;
+}
+
+static void free_cmd(struct nullb_cmd *cmd)
+{
+	put_tag(cmd->nq, cmd->tag);
+}
+
+static struct nullb_cmd *__alloc_cmd(struct nullb_queue *nq)
+{
+	struct nullb_cmd *cmd;
+	unsigned int tag;
+
+	tag = get_tag(nq);
+	if (tag != -1U) {
+		cmd = &nq->cmds[tag];
+		cmd->tag = tag;
+		cmd->nq = nq;
+		return cmd;
+	}
+
+	return NULL;
+}
+
+static struct nullb_cmd *alloc_cmd(struct nullb_queue *nq, int can_wait)
+{
+	struct nullb_cmd *cmd;
+	DEFINE_WAIT(wait);
+
+	cmd = __alloc_cmd(nq);
+	if (cmd || !can_wait)
+		return cmd;
+
+	do {
+		prepare_to_wait(&nq->wait, &wait, TASK_UNINTERRUPTIBLE);
+		cmd = __alloc_cmd(nq);
+		if (cmd)
+			break;
+
+		io_schedule();
+	} while (1);
+
+	finish_wait(&nq->wait, &wait);
+	return cmd;
+}
+
+static void end_cmd(struct nullb_cmd *cmd)
+{
+	if (cmd->rq) {
+		if (queue_mode == NULL_Q_MQ)
+			blk_mq_end_io(cmd->rq, 0);
+		else {
+			INIT_LIST_HEAD(&cmd->rq->queuelist);
+			blk_end_request_all(cmd->rq, 0);
+		}
+	} else if (cmd->bio)
+		bio_endio(cmd->bio, 0);
+
+	if (queue_mode != NULL_Q_MQ)
+		free_cmd(cmd);
+}
+
+static enum hrtimer_restart null_cmd_timer_expired(struct hrtimer *timer)
+{
+	struct completion_queue *cq;
+	struct llist_node *entry;
+	struct nullb_cmd *cmd;
+
+	cq = &per_cpu(completion_queues, smp_processor_id());
+
+	while ((entry = llist_del_all(&cq->list)) != NULL) {
+		do {
+			cmd = container_of(entry, struct nullb_cmd, ll_list);
+			end_cmd(cmd);
+			entry = entry->next;
+		} while (entry);
+	}
+
+	return HRTIMER_NORESTART;
+}
+
+static void null_cmd_end_timer(struct nullb_cmd *cmd)
+{
+	struct completion_queue *cq = &per_cpu(completion_queues, get_cpu());
+
+	cmd->ll_list.next = NULL;
+	if (llist_add(&cmd->ll_list, &cq->list)) {
+		ktime_t kt = ktime_set(0, completion_nsec);
+
+		hrtimer_start(&cq->timer, kt, HRTIMER_MODE_REL);
+	}
+
+	put_cpu();
+}
+
+static void null_softirq_done_fn(struct request *rq)
+{
+	blk_end_request_all(rq, 0);
+}
+
+#if defined(CONFIG_SMP) && defined(CONFIG_USE_GENERIC_SMP_HELPERS)
+
+static void null_ipi_cmd_end_io(void *data)
+{
+	struct completion_queue *cq;
+	struct llist_node *entry, *next;
+	struct nullb_cmd *cmd;
+
+	cq = &per_cpu(completion_queues, smp_processor_id());
+
+	entry = llist_del_all(&cq->list);
+
+	while (entry) {
+		next = entry->next;
+		cmd = llist_entry(entry, struct nullb_cmd, ll_list);
+		end_cmd(cmd);
+		entry = next;
+	}
+}
+
+static void null_cmd_end_ipi(struct nullb_cmd *cmd)
+{
+	struct call_single_data *data = &cmd->csd;
+	int cpu = get_cpu();
+	struct completion_queue *cq = &per_cpu(completion_queues, cpu);
+
+	cmd->ll_list.next = NULL;
+
+	if (llist_add(&cmd->ll_list, &cq->list)) {
+		data->func = null_ipi_cmd_end_io;
+		data->flags = 0;
+		__smp_call_function_single(cpu, data, 0);
+	}
+
+	put_cpu();
+}
+
+#endif /* CONFIG_SMP && CONFIG_USE_GENERIC_SMP_HELPERS */
+
+static inline void null_handle_cmd(struct nullb_cmd *cmd)
+{
+	/* Complete IO by inline, softirq or timer */
+	switch (irqmode) {
+	case NULL_IRQ_NONE:
+		end_cmd(cmd);
+		break;
+	case NULL_IRQ_SOFTIRQ:
+#if defined(CONFIG_SMP) && defined(CONFIG_USE_GENERIC_SMP_HELPERS)
+		null_cmd_end_ipi(cmd);
+#else
+		end_cmd(cmd);
+#endif
+		break;
+	case NULL_IRQ_TIMER:
+		null_cmd_end_timer(cmd);
+		break;
+	}
+}
+
+static struct nullb_queue *nullb_to_queue(struct nullb *nullb)
+{
+	int index = 0;
+
+	if (nullb->nr_queues != 1)
+		index = raw_smp_processor_id() / ((nr_cpu_ids + nullb->nr_queues - 1) / nullb->nr_queues);
+
+	return &nullb->queues[index];
+}
+
+static void null_queue_bio(struct request_queue *q, struct bio *bio)
+{
+	struct nullb *nullb = q->queuedata;
+	struct nullb_queue *nq = nullb_to_queue(nullb);
+	struct nullb_cmd *cmd;
+
+	cmd = alloc_cmd(nq, 1);
+	cmd->bio = bio;
+
+	null_handle_cmd(cmd);
+}
+
+static int null_rq_prep_fn(struct request_queue *q, struct request *req)
+{
+	struct nullb *nullb = q->queuedata;
+	struct nullb_queue *nq = nullb_to_queue(nullb);
+	struct nullb_cmd *cmd;
+
+	cmd = alloc_cmd(nq, 0);
+	if (cmd) {
+		cmd->rq = req;
+		req->special = cmd;
+		return BLKPREP_OK;
+	}
+
+	return BLKPREP_DEFER;
+}
+
+static void null_request_fn(struct request_queue *q)
+{
+	struct request *rq;
+
+	while ((rq = blk_fetch_request(q)) != NULL) {
+		struct nullb_cmd *cmd = rq->special;
+
+		spin_unlock_irq(q->queue_lock);
+		null_handle_cmd(cmd);
+		spin_lock_irq(q->queue_lock);
+	}
+}
+
+static int null_queue_rq(struct blk_mq_hw_ctx *hctx, struct request *rq)
+{
+	struct nullb_cmd *cmd = rq->special;
+
+	cmd->rq = rq;
+	cmd->nq = hctx->driver_data;
+
+	null_handle_cmd(cmd);
+	return BLK_MQ_RQ_QUEUE_OK;
+}
+
+static struct blk_mq_hw_ctx *null_alloc_hctx(struct blk_mq_reg *reg, unsigned int hctx_index)
+{
+	return kzalloc_node(sizeof(struct blk_mq_hw_ctx), GFP_KERNEL,
+				hctx_index);
+}
+
+static void null_free_hctx(struct blk_mq_hw_ctx *hctx, unsigned int hctx_index)
+{
+	kfree(hctx);
+}
+
+static int null_init_hctx(struct blk_mq_hw_ctx *hctx, void *data,
+			  unsigned int index)
+{
+	struct nullb *nullb = data;
+	struct nullb_queue *nq = &nullb->queues[index];
+
+	init_waitqueue_head(&nq->wait);
+	nq->queue_depth = nullb->queue_depth;
+	nullb->nr_queues++;
+	hctx->driver_data = nq;
+
+	return 0;
+}
+
+static struct blk_mq_ops null_mq_ops = {
+	.queue_rq       = null_queue_rq,
+	.map_queue      = blk_mq_map_queue,
+	.init_hctx	= null_init_hctx,
+};
+
+static struct blk_mq_reg null_mq_reg = {
+	.ops		= &null_mq_ops,
+	.queue_depth	= 64,
+	.cmd_size	= sizeof(struct nullb_cmd),
+	.flags		= BLK_MQ_F_SHOULD_MERGE,
+};
+
+static void null_del_dev(struct nullb *nullb)
+{
+	list_del_init(&nullb->list);
+
+	del_gendisk(nullb->disk);
+	if (queue_mode == NULL_Q_MQ)
+		blk_mq_free_queue(nullb->q);
+	else
+		blk_cleanup_queue(nullb->q);
+	put_disk(nullb->disk);
+	kfree(nullb);
+}
+
+static int null_open(struct block_device *bdev, fmode_t mode)
+{
+	return 0;
+}
+
+static void null_release(struct gendisk *disk, fmode_t mode)
+{
+}
+
+static const struct block_device_operations null_fops = {
+	.owner =	THIS_MODULE,
+	.open =		null_open,
+	.release =	null_release,
+};
+
+static int setup_commands(struct nullb_queue *nq)
+{
+	struct nullb_cmd *cmd;
+	int i, tag_size;
+
+	nq->cmds = kzalloc(nq->queue_depth * sizeof(*cmd), GFP_KERNEL);
+	if (!nq->cmds)
+		return 1;
+
+	tag_size = ALIGN(nq->queue_depth, BITS_PER_LONG) / BITS_PER_LONG;
+	nq->tag_map = kzalloc(tag_size * sizeof(unsigned long), GFP_KERNEL);
+	if (!nq->tag_map) {
+		kfree(nq->cmds);
+		return 1;
+	}
+
+	for (i = 0; i < nq->queue_depth; i++) {
+		cmd = &nq->cmds[i];
+		INIT_LIST_HEAD(&cmd->list);
+		cmd->ll_list.next = NULL;
+		cmd->tag = -1U;
+	}
+
+	return 0;
+}
+
+static void cleanup_queue(struct nullb_queue *nq)
+{
+	kfree(nq->tag_map);
+	kfree(nq->cmds);
+}
+
+static void cleanup_queues(struct nullb *nullb)
+{
+	int i;
+
+	for (i = 0; i < nullb->nr_queues; i++)
+		cleanup_queue(&nullb->queues[i]);
+
+	kfree(nullb->queues);
+}
+
+static int setup_queues(struct nullb *nullb)
+{
+	struct nullb_queue *nq;
+	int i;
+
+	nullb->queues = kzalloc(submit_queues * sizeof(*nq), GFP_KERNEL);
+	if (!nullb->queues)
+		return 1;
+
+	nullb->nr_queues = 0;
+	nullb->queue_depth = hw_queue_depth;
+
+	if (queue_mode == NULL_Q_MQ)
+		return 0;
+
+	for (i = 0; i < submit_queues; i++) {
+		nq = &nullb->queues[i];
+		init_waitqueue_head(&nq->wait);
+		nq->queue_depth = hw_queue_depth;
+		if (setup_commands(nq))
+			break;
+		nullb->nr_queues++;
+	}
+
+	if (i == submit_queues)
+		return 0;
+
+	cleanup_queues(nullb);
+	return 1;
+}
+
+static int null_add_dev(void)
+{
+	struct gendisk *disk;
+	struct nullb *nullb;
+	sector_t size;
+
+	nullb = kzalloc_node(sizeof(*nullb), GFP_KERNEL, home_node);
+	if (!nullb)
+		return -ENOMEM;
+
+	spin_lock_init(&nullb->lock);
+
+	if (setup_queues(nullb))
+		goto err;
+
+	if (queue_mode == NULL_Q_MQ) {
+		null_mq_reg.numa_node = home_node;
+		null_mq_reg.queue_depth = hw_queue_depth;
+
+		if (use_per_node_hctx) {
+			null_mq_reg.ops->alloc_hctx = null_alloc_hctx;
+			null_mq_reg.ops->free_hctx = null_free_hctx;
+
+			null_mq_reg.nr_hw_queues = nr_online_nodes;
+		} else {
+			null_mq_reg.ops->alloc_hctx = blk_mq_alloc_single_hw_queue;
+			null_mq_reg.ops->free_hctx = blk_mq_free_single_hw_queue;
+
+			null_mq_reg.nr_hw_queues = submit_queues;
+		}
+
+		nullb->q = blk_mq_init_queue(&null_mq_reg, nullb);
+	} else if (queue_mode == NULL_Q_BIO) {
+		nullb->q = blk_alloc_queue_node(GFP_KERNEL, home_node);
+		blk_queue_make_request(nullb->q, null_queue_bio);
+	} else {
+		nullb->q = blk_init_queue_node(null_request_fn, &nullb->lock, home_node);
+		blk_queue_prep_rq(nullb->q, null_rq_prep_fn);
+		if (nullb->q)
+			blk_queue_softirq_done(nullb->q, null_softirq_done_fn);
+	}
+
+	if (!nullb->q)
+		goto queue_fail;
+
+	nullb->q->queuedata = nullb;
+	queue_flag_set_unlocked(QUEUE_FLAG_NONROT, nullb->q);
+
+	disk = nullb->disk = alloc_disk_node(1, home_node);
+	if (!disk) {
+queue_fail:
+		if (queue_mode == NULL_Q_MQ)
+			blk_mq_free_queue(nullb->q);
+		else
+			blk_cleanup_queue(nullb->q);
+		cleanup_queues(nullb);
+err:
+		kfree(nullb);
+		return -ENOMEM;
+	}
+
+	mutex_lock(&lock);
+	list_add_tail(&nullb->list, &nullb_list);
+	nullb->index = nullb_indexes++;
+	mutex_unlock(&lock);
+
+	blk_queue_logical_block_size(nullb->q, bs);
+	blk_queue_physical_block_size(nullb->q, bs);
+
+	size = gb * 1024 * 1024 * 1024ULL;
+	sector_div(size, bs);
+	set_capacity(disk, size);
+
+	disk->flags |= GENHD_FL_EXT_DEVT;
+	disk->major		= null_major;
+	disk->first_minor	= nullb->index;
+	disk->fops		= &null_fops;
+	disk->private_data	= nullb;
+	disk->queue		= nullb->q;
+	sprintf(disk->disk_name, "nullb%d", nullb->index);
+	add_disk(disk);
+	return 0;
+}
+
+static int __init null_init(void)
+{
+	unsigned int i;
+
+#if !defined(CONFIG_SMP) || !defined(CONFIG_USE_GENERIC_SMP_HELPERS)
+	if (irqmode == NULL_IRQ_SOFTIRQ) {
+		pr_warn("null_blk: softirq completions not available.\n");
+		pr_warn("null_blk: using direct completions.\n");
+		irqmode = NULL_IRQ_NONE;
+	}
+#endif
+
+	if (submit_queues > nr_cpu_ids)
+		submit_queues = nr_cpu_ids;
+	else if (!submit_queues)
+		submit_queues = 1;
+
+	mutex_init(&lock);
+
+	/* Initialize a separate list for each CPU for issuing softirqs */
+	for_each_possible_cpu(i) {
+		struct completion_queue *cq = &per_cpu(completion_queues, i);
+
+		init_llist_head(&cq->list);
+
+		if (irqmode != NULL_IRQ_TIMER)
+			continue;
+
+		hrtimer_init(&cq->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+		cq->timer.function = null_cmd_timer_expired;
+	}
+
+	null_major = register_blkdev(0, "nullb");
+	if (null_major < 0)
+		return null_major;
+
+	for (i = 0; i < nr_devices; i++) {
+		if (null_add_dev()) {
+			unregister_blkdev(null_major, "nullb");
+			return -EINVAL;
+		}
+	}
+
+	pr_info("null: module loaded\n");
+	return 0;
+}
+
+static void __exit null_exit(void)
+{
+	struct nullb *nullb;
+
+	unregister_blkdev(null_major, "nullb");
+
+	mutex_lock(&lock);
+	while (!list_empty(&nullb_list)) {
+		nullb = list_entry(nullb_list.next, struct nullb, list);
+		null_del_dev(nullb);
+	}
+	mutex_unlock(&lock);
+}
+
+module_init(null_init);
+module_exit(null_exit);
+
+MODULE_AUTHOR("Jens Axboe <jaxboe@fusionio.com>");
+MODULE_LICENSE("GPL");
-- 
cgit 


From 6b1e5a45d4eaa75e28f2d170ea43ab8fc6dd34d8 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Wed, 23 Oct 2013 10:51:20 +0200
Subject: [SCSI] remove check for 'resetting'

Field is now unused, so this is dead code.

[jejb: remove resetting and last_reset from Scsi_Host]
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/scsi.c      | 28 ----------------------------
 include/scsi/scsi_host.h |  2 --
 2 files changed, 30 deletions(-)

diff --git a/drivers/scsi/scsi.c b/drivers/scsi/scsi.c
index eaa808e6ba91..fe0bcb18fb26 100644
--- a/drivers/scsi/scsi.c
+++ b/drivers/scsi/scsi.c
@@ -78,11 +78,6 @@ static void scsi_done(struct scsi_cmnd *cmd);
  * Definitions and constants.
  */
 
-#define MIN_RESET_DELAY (2*HZ)
-
-/* Do not call reset on error if we just did a reset within 15 sec. */
-#define MIN_RESET_PERIOD (15*HZ)
-
 /*
  * Note - the initial logging level can be set here to log events at boot time.
  * After the system is up, you may enable logging via the /proc interface.
@@ -658,7 +653,6 @@ EXPORT_SYMBOL(scsi_cmd_get_serial);
 int scsi_dispatch_cmd(struct scsi_cmnd *cmd)
 {
 	struct Scsi_Host *host = cmd->device->host;
-	unsigned long timeout;
 	int rtn = 0;
 
 	atomic_inc(&cmd->device->iorequest_cnt);
@@ -704,28 +698,6 @@ int scsi_dispatch_cmd(struct scsi_cmnd *cmd)
 			       (cmd->device->lun << 5 & 0xe0);
 	}
 
-	/*
-	 * We will wait MIN_RESET_DELAY clock ticks after the last reset so
-	 * we can avoid the drive not being ready.
-	 */
-	timeout = host->last_reset + MIN_RESET_DELAY;
-
-	if (host->resetting && time_before(jiffies, timeout)) {
-		int ticks_remaining = timeout - jiffies;
-		/*
-		 * NOTE: This may be executed from within an interrupt
-		 * handler!  This is bad, but for now, it'll do.  The irq
-		 * level of the interrupt handler has been masked out by the
-		 * platform dependent interrupt handling code already, so the
-		 * sti() here will not cause another call to the SCSI host's
-		 * interrupt handler (assuming there is one irq-level per
-		 * host).
-		 */
-		while (--ticks_remaining >= 0)
-			mdelay(1 + 999 / HZ);
-		host->resetting = 0;
-	}
-
 	scsi_log_send(cmd);
 
 	/*
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 755243572219..a74b7d9afe8e 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -598,8 +598,6 @@ struct Scsi_Host {
 	unsigned int host_eh_scheduled;    /* EH scheduled without command */
     
 	unsigned int host_no;  /* Used for IOCTL_GET_IDLUN, /proc/scsi et al. */
-	int resetting; /* if set, it means that last_reset is a valid value */
-	unsigned long last_reset;
 
 	/*
 	 * These three parameters can be used to allow for wide scsi,
-- 
cgit 


From b45620229dd67ff1daffa8adce57f37b37860f78 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Wed, 23 Oct 2013 10:51:21 +0200
Subject: [SCSI] Add 'eh_deadline' to limit SCSI EH runtime

This patchs adds an 'eh_deadline' sysfs attribute to the scsi
host which limits the overall runtime of the SCSI EH.
The 'eh_deadline' value is stored in the now obsolete field
'resetting'.
When a command is failed the start time of the EH is stored
in 'last_reset'. If the overall runtime of the SCSI EH is longer
than last_reset + eh_deadline, the EH is short-circuited and
falls through to issue a host reset only.

[jejb: add comments in Scsi_Host about new fields]
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/hosts.c      |   7 +++
 drivers/scsi/scsi_error.c | 130 +++++++++++++++++++++++++++++++++++++++++++---
 drivers/scsi/scsi_sysfs.c |  37 +++++++++++++
 include/scsi/scsi_host.h  |   5 ++
 4 files changed, 173 insertions(+), 6 deletions(-)

diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index df0c3c71ea43..f334859024c0 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -316,6 +316,12 @@ static void scsi_host_dev_release(struct device *dev)
 	kfree(shost);
 }
 
+static unsigned int shost_eh_deadline;
+
+module_param_named(eh_deadline, shost_eh_deadline, uint, S_IRUGO|S_IWUSR);
+MODULE_PARM_DESC(eh_deadline,
+		 "SCSI EH timeout in seconds (should be between 1 and 2^32-1)");
+
 static struct device_type scsi_host_type = {
 	.name =		"scsi_host",
 	.release =	scsi_host_dev_release,
@@ -388,6 +394,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
 	shost->unchecked_isa_dma = sht->unchecked_isa_dma;
 	shost->use_clustering = sht->use_clustering;
 	shost->ordered_tag = sht->ordered_tag;
+	shost->eh_deadline = shost_eh_deadline * HZ;
 
 	if (sht->supported_mode == MODE_UNKNOWN)
 		/* means we didn't set it ... default to INITIATOR */
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index 83e591b60193..edae9e20f886 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -87,6 +87,18 @@ void scsi_schedule_eh(struct Scsi_Host *shost)
 }
 EXPORT_SYMBOL_GPL(scsi_schedule_eh);
 
+static int scsi_host_eh_past_deadline(struct Scsi_Host *shost)
+{
+	if (!shost->last_reset || !shost->eh_deadline)
+		return 0;
+
+	if (time_before(jiffies,
+			shost->last_reset + shost->eh_deadline))
+		return 0;
+
+	return 1;
+}
+
 /**
  * scsi_eh_scmd_add - add scsi cmd to error handling.
  * @scmd:	scmd to run eh on.
@@ -109,6 +121,9 @@ int scsi_eh_scmd_add(struct scsi_cmnd *scmd, int eh_flag)
 		if (scsi_host_set_state(shost, SHOST_CANCEL_RECOVERY))
 			goto out_unlock;
 
+	if (shost->eh_deadline && !shost->last_reset)
+		shost->last_reset = jiffies;
+
 	ret = 1;
 	scmd->eh_eflags |= eh_flag;
 	list_add_tail(&scmd->eh_entry, &shost->eh_cmd_q);
@@ -138,6 +153,9 @@ enum blk_eh_timer_return scsi_times_out(struct request *req)
 	trace_scsi_dispatch_cmd_timeout(scmd);
 	scsi_log_completion(scmd, TIMEOUT_ERROR);
 
+	if (host->eh_deadline && !host->last_reset)
+		host->last_reset = jiffies;
+
 	if (host->transportt->eh_timed_out)
 		rtn = host->transportt->eh_timed_out(scmd);
 	else if (host->hostt->eh_timed_out)
@@ -990,13 +1008,26 @@ int scsi_eh_get_sense(struct list_head *work_q,
 		      struct list_head *done_q)
 {
 	struct scsi_cmnd *scmd, *next;
+	struct Scsi_Host *shost;
 	int rtn;
+	unsigned long flags;
 
 	list_for_each_entry_safe(scmd, next, work_q, eh_entry) {
 		if ((scmd->eh_eflags & SCSI_EH_CANCEL_CMD) ||
 		    SCSI_SENSE_VALID(scmd))
 			continue;
 
+		shost = scmd->device->host;
+		spin_lock_irqsave(shost->host_lock, flags);
+		if (scsi_host_eh_past_deadline(shost)) {
+			spin_unlock_irqrestore(shost->host_lock, flags);
+			SCSI_LOG_ERROR_RECOVERY(3,
+				shost_printk(KERN_INFO, shost,
+					    "skip %s, past eh deadline\n",
+					     __func__));
+			break;
+		}
+		spin_unlock_irqrestore(shost->host_lock, flags);
 		SCSI_LOG_ERROR_RECOVERY(2, scmd_printk(KERN_INFO, scmd,
 						  "%s: requesting sense\n",
 						  current->comm));
@@ -1082,11 +1113,28 @@ static int scsi_eh_test_devices(struct list_head *cmd_list,
 	struct scsi_cmnd *scmd, *next;
 	struct scsi_device *sdev;
 	int finish_cmds;
+	unsigned long flags;
 
 	while (!list_empty(cmd_list)) {
 		scmd = list_entry(cmd_list->next, struct scsi_cmnd, eh_entry);
 		sdev = scmd->device;
 
+		if (!try_stu) {
+			spin_lock_irqsave(sdev->host->host_lock, flags);
+			if (scsi_host_eh_past_deadline(sdev->host)) {
+				/* Push items back onto work_q */
+				list_splice_init(cmd_list, work_q);
+				spin_unlock_irqrestore(sdev->host->host_lock,
+						       flags);
+				SCSI_LOG_ERROR_RECOVERY(3,
+					shost_printk(KERN_INFO, sdev->host,
+						     "skip %s, past eh deadline",
+						     __func__));
+				break;
+			}
+			spin_unlock_irqrestore(sdev->host->host_lock, flags);
+		}
+
 		finish_cmds = !scsi_device_online(scmd->device) ||
 			(try_stu && !scsi_eh_try_stu(scmd) &&
 			 !scsi_eh_tur(scmd)) ||
@@ -1122,14 +1170,28 @@ static int scsi_eh_abort_cmds(struct list_head *work_q,
 	struct scsi_cmnd *scmd, *next;
 	LIST_HEAD(check_list);
 	int rtn;
+	struct Scsi_Host *shost;
+	unsigned long flags;
 
 	list_for_each_entry_safe(scmd, next, work_q, eh_entry) {
 		if (!(scmd->eh_eflags & SCSI_EH_CANCEL_CMD))
 			continue;
+		shost = scmd->device->host;
+		spin_lock_irqsave(shost->host_lock, flags);
+		if (scsi_host_eh_past_deadline(shost)) {
+			spin_unlock_irqrestore(shost->host_lock, flags);
+			list_splice_init(&check_list, work_q);
+			SCSI_LOG_ERROR_RECOVERY(3,
+				shost_printk(KERN_INFO, shost,
+					    "skip %s, past eh deadline\n",
+					     __func__));
+			return list_empty(work_q);
+		}
+		spin_unlock_irqrestore(shost->host_lock, flags);
 		SCSI_LOG_ERROR_RECOVERY(3, printk("%s: aborting cmd:"
 						  "0x%p\n", current->comm,
 						  scmd));
-		rtn = scsi_try_to_abort_cmd(scmd->device->host->hostt, scmd);
+		rtn = scsi_try_to_abort_cmd(shost->hostt, scmd);
 		if (rtn == SUCCESS || rtn == FAST_IO_FAIL) {
 			scmd->eh_eflags &= ~SCSI_EH_CANCEL_CMD;
 			if (rtn == FAST_IO_FAIL)
@@ -1187,8 +1249,19 @@ static int scsi_eh_stu(struct Scsi_Host *shost,
 {
 	struct scsi_cmnd *scmd, *stu_scmd, *next;
 	struct scsi_device *sdev;
+	unsigned long flags;
 
 	shost_for_each_device(sdev, shost) {
+		spin_lock_irqsave(shost->host_lock, flags);
+		if (scsi_host_eh_past_deadline(shost)) {
+			spin_unlock_irqrestore(shost->host_lock, flags);
+			SCSI_LOG_ERROR_RECOVERY(3,
+				shost_printk(KERN_INFO, shost,
+					    "skip %s, past eh deadline\n",
+					     __func__));
+			break;
+		}
+		spin_unlock_irqrestore(shost->host_lock, flags);
 		stu_scmd = NULL;
 		list_for_each_entry(scmd, work_q, eh_entry)
 			if (scmd->device == sdev && SCSI_SENSE_VALID(scmd) &&
@@ -1241,9 +1314,20 @@ static int scsi_eh_bus_device_reset(struct Scsi_Host *shost,
 {
 	struct scsi_cmnd *scmd, *bdr_scmd, *next;
 	struct scsi_device *sdev;
+	unsigned long flags;
 	int rtn;
 
 	shost_for_each_device(sdev, shost) {
+		spin_lock_irqsave(shost->host_lock, flags);
+		if (scsi_host_eh_past_deadline(shost)) {
+			spin_unlock_irqrestore(shost->host_lock, flags);
+			SCSI_LOG_ERROR_RECOVERY(3,
+				shost_printk(KERN_INFO, shost,
+					    "skip %s, past eh deadline\n",
+					     __func__));
+			break;
+		}
+		spin_unlock_irqrestore(shost->host_lock, flags);
 		bdr_scmd = NULL;
 		list_for_each_entry(scmd, work_q, eh_entry)
 			if (scmd->device == sdev) {
@@ -1303,6 +1387,21 @@ static int scsi_eh_target_reset(struct Scsi_Host *shost,
 		struct scsi_cmnd *next, *scmd;
 		int rtn;
 		unsigned int id;
+		unsigned long flags;
+
+		spin_lock_irqsave(shost->host_lock, flags);
+		if (scsi_host_eh_past_deadline(shost)) {
+			spin_unlock_irqrestore(shost->host_lock, flags);
+			/* push back on work queue for further processing */
+			list_splice_init(&check_list, work_q);
+			list_splice_init(&tmp_list, work_q);
+			SCSI_LOG_ERROR_RECOVERY(3,
+				shost_printk(KERN_INFO, shost,
+					    "skip %s, past eh deadline\n",
+					     __func__));
+			return list_empty(work_q);
+		}
+		spin_unlock_irqrestore(shost->host_lock, flags);
 
 		scmd = list_entry(tmp_list.next, struct scsi_cmnd, eh_entry);
 		id = scmd_id(scmd);
@@ -1347,6 +1446,7 @@ static int scsi_eh_bus_reset(struct Scsi_Host *shost,
 	LIST_HEAD(check_list);
 	unsigned int channel;
 	int rtn;
+	unsigned long flags;
 
 	/*
 	 * we really want to loop over the various channels, and do this on
@@ -1356,6 +1456,18 @@ static int scsi_eh_bus_reset(struct Scsi_Host *shost,
 	 */
 
 	for (channel = 0; channel <= shost->max_channel; channel++) {
+		spin_lock_irqsave(shost->host_lock, flags);
+		if (scsi_host_eh_past_deadline(shost)) {
+			spin_unlock_irqrestore(shost->host_lock, flags);
+			list_splice_init(&check_list, work_q);
+			SCSI_LOG_ERROR_RECOVERY(3,
+				shost_printk(KERN_INFO, shost,
+					    "skip %s, past eh deadline\n",
+					     __func__));
+			return list_empty(work_q);
+		}
+		spin_unlock_irqrestore(shost->host_lock, flags);
+
 		chan_scmd = NULL;
 		list_for_each_entry(scmd, work_q, eh_entry) {
 			if (channel == scmd_channel(scmd)) {
@@ -1755,8 +1867,9 @@ static void scsi_restart_operations(struct Scsi_Host *shost)
 	 * will be requests for character device operations, and also for
 	 * ioctls to queued block devices.
 	 */
-	SCSI_LOG_ERROR_RECOVERY(3, printk("%s: waking up host to restart\n",
-					  __func__));
+	SCSI_LOG_ERROR_RECOVERY(3,
+		printk("scsi_eh_%d waking up host to restart\n",
+		       shost->host_no));
 
 	spin_lock_irqsave(shost->host_lock, flags);
 	if (scsi_host_set_state(shost, SHOST_RUNNING))
@@ -1883,6 +1996,10 @@ static void scsi_unjam_host(struct Scsi_Host *shost)
 		if (!scsi_eh_abort_cmds(&eh_work_q, &eh_done_q))
 			scsi_eh_ready_devs(shost, &eh_work_q, &eh_done_q);
 
+	spin_lock_irqsave(shost->host_lock, flags);
+	if (shost->eh_deadline)
+		shost->last_reset = 0;
+	spin_unlock_irqrestore(shost->host_lock, flags);
 	scsi_eh_flush_done_q(&eh_done_q);
 }
 
@@ -1909,7 +2026,7 @@ int scsi_error_handler(void *data)
 		if ((shost->host_failed == 0 && shost->host_eh_scheduled == 0) ||
 		    shost->host_failed != shost->host_busy) {
 			SCSI_LOG_ERROR_RECOVERY(1,
-				printk("Error handler scsi_eh_%d sleeping\n",
+				printk("scsi_eh_%d: sleeping\n",
 					shost->host_no));
 			schedule();
 			continue;
@@ -1917,8 +2034,9 @@ int scsi_error_handler(void *data)
 
 		__set_current_state(TASK_RUNNING);
 		SCSI_LOG_ERROR_RECOVERY(1,
-			printk("Error handler scsi_eh_%d waking up\n",
-				shost->host_no));
+			printk("scsi_eh_%d: waking up %d/%d/%d\n",
+			       shost->host_no, shost->host_eh_scheduled,
+			       shost->host_failed, shost->host_busy));
 
 		/*
 		 * We have a host that is failing for some reason.  Figure out
diff --git a/drivers/scsi/scsi_sysfs.c b/drivers/scsi/scsi_sysfs.c
index a73471074a02..8ff62c26a41c 100644
--- a/drivers/scsi/scsi_sysfs.c
+++ b/drivers/scsi/scsi_sysfs.c
@@ -281,6 +281,42 @@ exit_store_host_reset:
 
 static DEVICE_ATTR(host_reset, S_IWUSR, NULL, store_host_reset);
 
+static ssize_t
+show_shost_eh_deadline(struct device *dev,
+		      struct device_attribute *attr, char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(dev);
+
+	return sprintf(buf, "%d\n", shost->eh_deadline / HZ);
+}
+
+static ssize_t
+store_shost_eh_deadline(struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t count)
+{
+	struct Scsi_Host *shost = class_to_shost(dev);
+	int ret = -EINVAL;
+	int deadline;
+	unsigned long flags;
+
+	if (shost->transportt && shost->transportt->eh_strategy_handler)
+		return ret;
+
+	if (sscanf(buf, "%d\n", &deadline) == 1) {
+		spin_lock_irqsave(shost->host_lock, flags);
+		if (scsi_host_in_recovery(shost))
+			ret = -EBUSY;
+		else {
+			shost->eh_deadline = deadline * HZ;
+			ret = count;
+		}
+		spin_unlock_irqrestore(shost->host_lock, flags);
+	}
+	return ret;
+}
+
+static DEVICE_ATTR(eh_deadline, S_IRUGO | S_IWUSR, show_shost_eh_deadline, store_shost_eh_deadline);
+
 shost_rd_attr(unique_id, "%u\n");
 shost_rd_attr(host_busy, "%hu\n");
 shost_rd_attr(cmd_per_lun, "%hd\n");
@@ -308,6 +344,7 @@ static struct attribute *scsi_sysfs_shost_attrs[] = {
 	&dev_attr_prot_capabilities.attr,
 	&dev_attr_prot_guard_type.attr,
 	&dev_attr_host_reset.attr,
+	&dev_attr_eh_deadline.attr,
 	NULL
 };
 
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index a74b7d9afe8e..546084964d55 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -599,6 +599,11 @@ struct Scsi_Host {
     
 	unsigned int host_no;  /* Used for IOCTL_GET_IDLUN, /proc/scsi et al. */
 
+	/* next two fields are used to bound the time spent in error handling */
+	int eh_deadline;
+	unsigned long last_reset;
+
+
 	/*
 	 * These three parameters can be used to allow for wide scsi,
 	 * and for host adapters that support multiple busses
-- 
cgit 


From 6fd046f960354250de3fed411eecdb784601bbad Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Wed, 23 Oct 2013 10:51:22 +0200
Subject: [SCSI] scsi_error: Escalate to LUN reset if abort fails

If a command abort fails there is a fair chance that all other
aborts will be failing, too.
So we should be calling LUN reset directly after the first failed
abort and skip aborting the remaining commands.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/scsi_error.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index edae9e20f886..e8bee9f0ad0f 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -1192,18 +1192,20 @@ static int scsi_eh_abort_cmds(struct list_head *work_q,
 						  "0x%p\n", current->comm,
 						  scmd));
 		rtn = scsi_try_to_abort_cmd(shost->hostt, scmd);
-		if (rtn == SUCCESS || rtn == FAST_IO_FAIL) {
-			scmd->eh_eflags &= ~SCSI_EH_CANCEL_CMD;
-			if (rtn == FAST_IO_FAIL)
-				scsi_eh_finish_cmd(scmd, done_q);
-			else
-				list_move_tail(&scmd->eh_entry, &check_list);
-		} else
+		if (rtn == FAILED) {
 			SCSI_LOG_ERROR_RECOVERY(3, printk("%s: aborting"
 							  " cmd failed:"
 							  "0x%p\n",
 							  current->comm,
 							  scmd));
+			list_splice_init(&check_list, work_q);
+			return list_empty(work_q);
+		}
+		scmd->eh_eflags &= ~SCSI_EH_CANCEL_CMD;
+		if (rtn == FAST_IO_FAIL)
+			scsi_eh_finish_cmd(scmd, done_q);
+		else
+			list_move_tail(&scmd->eh_entry, &check_list);
 	}
 
 	return scsi_eh_test_devices(&check_list, work_q, done_q, 0);
-- 
cgit 


From 280d45f6c35d8d7a0fe20c36caf426e3ac139cf9 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Fri, 25 Oct 2013 14:45:58 +0100
Subject: blk-mq: add blk_mq_stop_hw_queues

Add a helper to iterate over all hw queues and stop them.  This is useful
for driver that implement PM suspend functionality.

Signed-off-by: Christoph Hellwig <hch@lst.de>

Modified to just call blk_mq_stop_hw_queue() by Jens.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-mq.c         | 10 ++++++++++
 include/linux/blk-mq.h |  1 +
 2 files changed, 11 insertions(+)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index f21ec964e411..ac804c635040 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -672,6 +672,16 @@ void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx)
 }
 EXPORT_SYMBOL(blk_mq_stop_hw_queue);
 
+void blk_mq_stop_hw_queues(struct request_queue *q)
+{
+	struct blk_mq_hw_ctx *hctx;
+	int i;
+
+	queue_for_each_hw_ctx(q, hctx, i)
+		blk_mq_stop_hw_queue(hctx);
+}
+EXPORT_SYMBOL(blk_mq_stop_hw_queues);
+
 void blk_mq_start_hw_queue(struct blk_mq_hw_ctx *hctx)
 {
 	clear_bit(BLK_MQ_S_STOPPED, &hctx->state);
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 746042ff321a..3368b97bee73 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -136,6 +136,7 @@ void blk_mq_end_io(struct request *rq, int error);
 
 void blk_mq_stop_hw_queue(struct blk_mq_hw_ctx *hctx);
 void blk_mq_start_hw_queue(struct blk_mq_hw_ctx *hctx);
+void blk_mq_stop_hw_queues(struct request_queue *q);
 void blk_mq_start_stopped_hw_queues(struct request_queue *q);
 
 /*
-- 
cgit 


From a0974e6e217aead196033d72f898e2acb575304d Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Fri, 11 Oct 2013 14:52:08 +0100
Subject: arm64: big-endian: add big-endian support to top-level arch Makefile

This patch adds big-endian support to the AArch64 top-level Makefile.
This currently just passes the relevant flags to the toolchain and is
predicated on a Kconfig option that will be introduced later on.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/Makefile | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index d90cf79f233a..2fceb71ac3b7 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -20,9 +20,15 @@ LIBGCC 		:= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
 KBUILD_DEFCONFIG := defconfig
 
 KBUILD_CFLAGS	+= -mgeneral-regs-only
+ifeq ($(CONFIG_CPU_BIG_ENDIAN), y)
+KBUILD_CPPFLAGS	+= -mbig-endian
+AS		+= -EB
+LD		+= -EB
+else
 KBUILD_CPPFLAGS	+= -mlittle-endian
 AS		+= -EL
 LD		+= -EL
+endif
 
 comma = ,
 
-- 
cgit 


From c194520ada7c8f2eddec5ebf24982483b49736a0 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Fri, 11 Oct 2013 14:52:09 +0100
Subject: arm64: big-endian: fix byteorder include

For big-endian processors, we must include
linux/byteorder/big_endian.h to get the relevant definitions for
swabbing between CPU order and a defined endianness.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/include/uapi/asm/byteorder.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm64/include/uapi/asm/byteorder.h b/arch/arm64/include/uapi/asm/byteorder.h
index 2b92046aafc5..dc19e9537f0d 100644
--- a/arch/arm64/include/uapi/asm/byteorder.h
+++ b/arch/arm64/include/uapi/asm/byteorder.h
@@ -16,6 +16,10 @@
 #ifndef __ASM_BYTEORDER_H
 #define __ASM_BYTEORDER_H
 
+#ifdef __AARCH64EB__
+#include <linux/byteorder/big_endian.h>
+#else
 #include <linux/byteorder/little_endian.h>
+#endif
 
 #endif	/* __ASM_BYTEORDER_H */
-- 
cgit 


From 5436b5c8305b4ed37c5d11f96c1aaccca63c9ab2 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Fri, 11 Oct 2013 14:52:10 +0100
Subject: arm64: ELF: add support for big-endian executables

This patch adds support for the aarch64_be ELF format to the AArch64 ELF
loader.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/include/asm/elf.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h
index e7fa87f9201b..a3e4a5564ea3 100644
--- a/arch/arm64/include/asm/elf.h
+++ b/arch/arm64/include/asm/elf.h
@@ -90,11 +90,24 @@ typedef struct user_fpsimd_state elf_fpregset_t;
  * These are used to set parameters in the core dumps.
  */
 #define ELF_CLASS	ELFCLASS64
+#ifdef __AARCH64EB__
+#define ELF_DATA	ELFDATA2MSB
+#else
 #define ELF_DATA	ELFDATA2LSB
+#endif
 #define ELF_ARCH	EM_AARCH64
 
+/*
+ * This yields a string that ld.so will use to load implementation
+ * specific libraries for optimization.  This is more specific in
+ * intent than poking at uname or /proc/cpuinfo.
+ */
 #define ELF_PLATFORM_SIZE	16
+#ifdef __AARCH64EB__
+#define ELF_PLATFORM		("aarch64_be")
+#else
 #define ELF_PLATFORM		("aarch64")
+#endif
 
 /*
  * This is used to ensure we don't load something for the wrong architecture.
-- 
cgit 


From 94ed1f2cb5d46533f10262b1b760db7dbec9cf10 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Fri, 11 Oct 2013 14:52:11 +0100
Subject: arm64: setup: report ELF_PLATFORM as the machine for utsname

uname -m reports the machine field from the current utsname, which should
reflect the endianness of the system.

This patch reports ELF_PLATFORM for the field, so that everything appears
consistent from userspace.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kernel/setup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index b65c132fac30..fa6faf564da2 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -119,7 +119,7 @@ static void __init setup_processor(void)
 	printk("CPU: %s [%08x] revision %d\n",
 	       cpu_name, read_cpuid_id(), read_cpuid_id() & 15);
 
-	sprintf(init_utsname()->machine, "aarch64");
+	sprintf(init_utsname()->machine, ELF_PLATFORM);
 	elf_hwcap = 0;
 }
 
-- 
cgit 


From a795a38eb91cf72c4a05e72a9c84e317ee179a48 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Fri, 11 Oct 2013 14:52:12 +0100
Subject: arm64: compat: add support for big-endian (BE8) AArch32 binaries

This patch adds support for BE8 AArch32 tasks to the compat layer.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/include/asm/compat.h    | 14 ++++++++++++++
 arch/arm64/include/asm/elf.h       |  5 +++++
 arch/arm64/include/asm/processor.h |  5 +++++
 arch/arm64/include/asm/ptrace.h    |  1 +
 4 files changed, 25 insertions(+)

diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h
index 899af807ef0f..fda2704b3f9f 100644
--- a/arch/arm64/include/asm/compat.h
+++ b/arch/arm64/include/asm/compat.h
@@ -26,7 +26,11 @@
 #include <linux/ptrace.h>
 
 #define COMPAT_USER_HZ		100
+#ifdef __AARCH64EB__
+#define COMPAT_UTS_MACHINE	"armv8b\0\0"
+#else
 #define COMPAT_UTS_MACHINE	"armv8l\0\0"
+#endif
 
 typedef u32		compat_size_t;
 typedef s32		compat_ssize_t;
@@ -73,13 +77,23 @@ struct compat_timeval {
 };
 
 struct compat_stat {
+#ifdef __AARCH64EB__
+	short		st_dev;
+	short		__pad1;
+#else
 	compat_dev_t	st_dev;
+#endif
 	compat_ino_t	st_ino;
 	compat_mode_t	st_mode;
 	compat_ushort_t	st_nlink;
 	__compat_uid16_t	st_uid;
 	__compat_gid16_t	st_gid;
+#ifdef __AARCH64EB__
+	short		st_rdev;
+	short		__pad2;
+#else
 	compat_dev_t	st_rdev;
+#endif
 	compat_off_t	st_size;
 	compat_off_t	st_blksize;
 	compat_off_t	st_blocks;
diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h
index a3e4a5564ea3..01d3aab64b79 100644
--- a/arch/arm64/include/asm/elf.h
+++ b/arch/arm64/include/asm/elf.h
@@ -162,7 +162,12 @@ extern unsigned long arch_randomize_brk(struct mm_struct *mm);
 #define arch_randomize_brk arch_randomize_brk
 
 #ifdef CONFIG_COMPAT
+
+#ifdef __AARCH64EB__
+#define COMPAT_ELF_PLATFORM		("v8b")
+#else
 #define COMPAT_ELF_PLATFORM		("v8l")
+#endif
 
 #define COMPAT_ELF_ET_DYN_BASE		(randomize_et_dyn(2 * TASK_SIZE_32 / 3))
 
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
index ab239b2c456f..45b20cd6cbca 100644
--- a/arch/arm64/include/asm/processor.h
+++ b/arch/arm64/include/asm/processor.h
@@ -107,6 +107,11 @@ static inline void compat_start_thread(struct pt_regs *regs, unsigned long pc,
 	regs->pstate = COMPAT_PSR_MODE_USR;
 	if (pc & 1)
 		regs->pstate |= COMPAT_PSR_T_BIT;
+
+#ifdef __AARCH64EB__
+	regs->pstate |= COMPAT_PSR_E_BIT;
+#endif
+
 	regs->compat_sp = sp;
 }
 #endif
diff --git a/arch/arm64/include/asm/ptrace.h b/arch/arm64/include/asm/ptrace.h
index 0dacbbf9458b..0e7fa4963735 100644
--- a/arch/arm64/include/asm/ptrace.h
+++ b/arch/arm64/include/asm/ptrace.h
@@ -42,6 +42,7 @@
 #define COMPAT_PSR_MODE_UND	0x0000001b
 #define COMPAT_PSR_MODE_SYS	0x0000001f
 #define COMPAT_PSR_T_BIT	0x00000020
+#define COMPAT_PSR_E_BIT	0x00000200
 #define COMPAT_PSR_F_BIT	0x00000040
 #define COMPAT_PSR_I_BIT	0x00000080
 #define COMPAT_PSR_A_BIT	0x00000100
-- 
cgit 


From 55b89540b0d8d031f90e3d711ec0df3f797ecc61 Mon Sep 17 00:00:00 2001
From: Matthew Leach <matthew.leach@arm.com>
Date: Fri, 11 Oct 2013 14:52:13 +0100
Subject: arm64: compat: correct register concatenation for syscall wrappers

The arm64 port contains wrappers for arm32 syscalls that pass 64-bit
values. These wrappers concatenate the two registers to hold a 64-bit
value in a single X register. On BE, however, the lower and higher
words are swapped.

Create a new assembler macro, regs_to_64, that when on BE systems
swaps the registers in the orr instruction.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Matthew Leach <matthew.leach@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/include/asm/assembler.h | 12 ++++++++++++
 arch/arm64/kernel/sys32.S          | 22 +++++++++++-----------
 2 files changed, 23 insertions(+), 11 deletions(-)

diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
index 5aceb83b3f5c..381b935e74cd 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -115,3 +115,15 @@ lr	.req	x30		// link register
 	.align	7
 	b	\label
 	.endm
+/*
+ * Define a macro that constructs a 64-bit value by concatenating two
+ * 32-bit registers. Note that on big endian systems the order of the
+ * registers is swapped.
+ */
+#ifndef CONFIG_CPU_BIG_ENDIAN
+	.macro	regs_to_64, rd, lbits, hbits
+#else
+	.macro	regs_to_64, rd, hbits, lbits
+#endif
+	orr	\rd, \lbits, \hbits, lsl #32
+	.endm
diff --git a/arch/arm64/kernel/sys32.S b/arch/arm64/kernel/sys32.S
index a1b19ed7467c..423a5b3fc2be 100644
--- a/arch/arm64/kernel/sys32.S
+++ b/arch/arm64/kernel/sys32.S
@@ -59,48 +59,48 @@ ENDPROC(compat_sys_fstatfs64_wrapper)
  * extension.
  */
 compat_sys_pread64_wrapper:
-	orr	x3, x4, x5, lsl #32
+	regs_to_64	x3, x4, x5
 	b	sys_pread64
 ENDPROC(compat_sys_pread64_wrapper)
 
 compat_sys_pwrite64_wrapper:
-	orr	x3, x4, x5, lsl #32
+	regs_to_64	x3, x4, x5
 	b	sys_pwrite64
 ENDPROC(compat_sys_pwrite64_wrapper)
 
 compat_sys_truncate64_wrapper:
-	orr	x1, x2, x3, lsl #32
+	regs_to_64	x1, x2, x3
 	b	sys_truncate
 ENDPROC(compat_sys_truncate64_wrapper)
 
 compat_sys_ftruncate64_wrapper:
-	orr	x1, x2, x3, lsl #32
+	regs_to_64	x1, x2, x3
 	b	sys_ftruncate
 ENDPROC(compat_sys_ftruncate64_wrapper)
 
 compat_sys_readahead_wrapper:
-	orr	x1, x2, x3, lsl #32
+	regs_to_64	x1, x2, x3
 	mov	w2, w4
 	b	sys_readahead
 ENDPROC(compat_sys_readahead_wrapper)
 
 compat_sys_fadvise64_64_wrapper:
 	mov	w6, w1
-	orr	x1, x2, x3, lsl #32
-	orr	x2, x4, x5, lsl #32
+	regs_to_64	x1, x2, x3
+	regs_to_64	x2, x4, x5
 	mov	w3, w6
 	b	sys_fadvise64_64
 ENDPROC(compat_sys_fadvise64_64_wrapper)
 
 compat_sys_sync_file_range2_wrapper:
-	orr	x2, x2, x3, lsl #32
-	orr	x3, x4, x5, lsl #32
+	regs_to_64	x2, x2, x3
+	regs_to_64	x3, x4, x5
 	b	sys_sync_file_range2
 ENDPROC(compat_sys_sync_file_range2_wrapper)
 
 compat_sys_fallocate_wrapper:
-	orr	x2, x2, x3, lsl #32
-	orr	x3, x4, x5, lsl #32
+	regs_to_64	x2, x2, x3
+	regs_to_64	x3, x4, x5
 	b	sys_fallocate
 ENDPROC(compat_sys_fallocate_wrapper)
 
-- 
cgit 


From a1d5ebaf8ccdd100f45042ce32c591867de04ac3 Mon Sep 17 00:00:00 2001
From: Matthew Leach <matthew.leach@arm.com>
Date: Fri, 11 Oct 2013 14:52:14 +0100
Subject: arm64: big-endian: don't treat code as data when copying sigret code

Currently the sigreturn compat code is copied to an offset in the
vectors table. When using a BE kernel this data will be stored in the
wrong endianess so when returning from a signal on a 32-bit BE system,
arbitrary code will be executed.

Instead of declaring the code inside a struct and copying that, use
the assembler's .byte directives to store the code in the correct
endianess regardless of platform endianess.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Matthew Leach <matthew.leach@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kernel/kuser32.S  | 42 ++++++++++++++++++++++++++++++++++++++++++
 arch/arm64/kernel/signal32.c | 28 ----------------------------
 arch/arm64/kernel/vdso.c     |  5 ++++-
 3 files changed, 46 insertions(+), 29 deletions(-)

diff --git a/arch/arm64/kernel/kuser32.S b/arch/arm64/kernel/kuser32.S
index 8b69ecb1d8bc..1e4905d52d30 100644
--- a/arch/arm64/kernel/kuser32.S
+++ b/arch/arm64/kernel/kuser32.S
@@ -27,6 +27,9 @@
  *
  * See Documentation/arm/kernel_user_helpers.txt for formal definitions.
  */
+
+#include <asm/unistd32.h>
+
 	.align	5
 	.globl	__kuser_helper_start
 __kuser_helper_start:
@@ -75,3 +78,42 @@ __kuser_helper_version:			// 0xffff0ffc
 	.word	((__kuser_helper_end - __kuser_helper_start) >> 5)
 	.globl	__kuser_helper_end
 __kuser_helper_end:
+
+/*
+ * AArch32 sigreturn code
+ *
+ * For ARM syscalls, the syscall number has to be loaded into r7.
+ * We do not support an OABI userspace.
+ *
+ * For Thumb syscalls, we also pass the syscall number via r7. We therefore
+ * need two 16-bit instructions.
+ */
+	.globl __aarch32_sigret_code_start
+__aarch32_sigret_code_start:
+
+	/*
+	 * ARM Code
+	 */
+	.byte	__NR_compat_sigreturn, 0x70, 0xa0, 0xe3	// mov	r7, #__NR_compat_sigreturn
+	.byte	__NR_compat_sigreturn, 0x00, 0x00, 0xef	// svc	#__NR_compat_sigreturn
+
+	/*
+	 * Thumb code
+	 */
+	.byte	__NR_compat_sigreturn, 0x27			// svc	#__NR_compat_sigreturn
+	.byte	__NR_compat_sigreturn, 0xdf			// mov	r7, #__NR_compat_sigreturn
+
+	/*
+	 * ARM code
+	 */
+	.byte	__NR_compat_rt_sigreturn, 0x70, 0xa0, 0xe3	// mov	r7, #__NR_compat_rt_sigreturn
+	.byte	__NR_compat_rt_sigreturn, 0x00, 0x00, 0xef	// svc	#__NR_compat_rt_sigreturn
+
+	/*
+	 * Thumb code
+	 */
+	.byte	__NR_compat_rt_sigreturn, 0x27			// svc	#__NR_compat_rt_sigreturn
+	.byte	__NR_compat_rt_sigreturn, 0xdf			// mov	r7, #__NR_compat_rt_sigreturn
+
+        .globl __aarch32_sigret_code_end
+__aarch32_sigret_code_end:
diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c
index e393174fe859..e8772c07cf5c 100644
--- a/arch/arm64/kernel/signal32.c
+++ b/arch/arm64/kernel/signal32.c
@@ -100,34 +100,6 @@ struct compat_rt_sigframe {
 
 #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
 
-/*
- * For ARM syscalls, the syscall number has to be loaded into r7.
- * We do not support an OABI userspace.
- */
-#define MOV_R7_NR_SIGRETURN	(0xe3a07000 | __NR_compat_sigreturn)
-#define SVC_SYS_SIGRETURN	(0xef000000 | __NR_compat_sigreturn)
-#define MOV_R7_NR_RT_SIGRETURN	(0xe3a07000 | __NR_compat_rt_sigreturn)
-#define SVC_SYS_RT_SIGRETURN	(0xef000000 | __NR_compat_rt_sigreturn)
-
-/*
- * For Thumb syscalls, we also pass the syscall number via r7. We therefore
- * need two 16-bit instructions.
- */
-#define SVC_THUMB_SIGRETURN	(((0xdf00 | __NR_compat_sigreturn) << 16) | \
-				   0x2700 | __NR_compat_sigreturn)
-#define SVC_THUMB_RT_SIGRETURN	(((0xdf00 | __NR_compat_rt_sigreturn) << 16) | \
-				   0x2700 | __NR_compat_rt_sigreturn)
-
-const compat_ulong_t aarch32_sigret_code[6] = {
-	/*
-	 * AArch32 sigreturn code.
-	 * We don't construct an OABI SWI - instead we just set the imm24 field
-	 * to the EABI syscall number so that we create a sane disassembly.
-	 */
-	MOV_R7_NR_SIGRETURN,    SVC_SYS_SIGRETURN,    SVC_THUMB_SIGRETURN,
-	MOV_R7_NR_RT_SIGRETURN, SVC_SYS_RT_SIGRETURN, SVC_THUMB_RT_SIGRETURN,
-};
-
 static inline int put_sigset_t(compat_sigset_t __user *uset, sigset_t *set)
 {
 	compat_sigset_t	cset;
diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c
index 6a389dc1bd49..65d40cf6945a 100644
--- a/arch/arm64/kernel/vdso.c
+++ b/arch/arm64/kernel/vdso.c
@@ -58,7 +58,10 @@ static struct page *vectors_page[1];
 static int alloc_vectors_page(void)
 {
 	extern char __kuser_helper_start[], __kuser_helper_end[];
+	extern char __aarch32_sigret_code_start[], __aarch32_sigret_code_end[];
+
 	int kuser_sz = __kuser_helper_end - __kuser_helper_start;
+	int sigret_sz = __aarch32_sigret_code_end - __aarch32_sigret_code_start;
 	unsigned long vpage;
 
 	vpage = get_zeroed_page(GFP_ATOMIC);
@@ -72,7 +75,7 @@ static int alloc_vectors_page(void)
 
 	/* sigreturn code */
 	memcpy((void *)vpage + AARCH32_KERN_SIGRET_CODE_OFFSET,
-		aarch32_sigret_code, sizeof(aarch32_sigret_code));
+               __aarch32_sigret_code_start, sigret_sz);
 
 	flush_icache_range(vpage, vpage + PAGE_SIZE);
 	vectors_page[0] = virt_to_page(vpage);
-- 
cgit 


From e68bedaa03c950ae8045e7899e7a6b2a97d1bf41 Mon Sep 17 00:00:00 2001
From: Matthew Leach <matthew.leach@arm.com>
Date: Fri, 11 Oct 2013 14:52:15 +0100
Subject: arm64: asm: add CPU_LE & CPU_BE assembler helpers

Add CPU_LE and CPU_BE to select assembler code in little and big
endian configurations respectively.

Signed-off-by: Matthew Leach <matthew.leach@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/include/asm/assembler.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h
index 381b935e74cd..fd3e3924041b 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -115,6 +115,25 @@ lr	.req	x30		// link register
 	.align	7
 	b	\label
 	.endm
+
+/*
+ * Select code when configured for BE.
+ */
+#ifdef CONFIG_CPU_BIG_ENDIAN
+#define CPU_BE(code...) code
+#else
+#define CPU_BE(code...)
+#endif
+
+/*
+ * Select code when configured for LE.
+ */
+#ifdef CONFIG_CPU_BIG_ENDIAN
+#define CPU_LE(code...)
+#else
+#define CPU_LE(code...) code
+#endif
+
 /*
  * Define a macro that constructs a 64-bit value by concatenating two
  * 32-bit registers. Note that on big endian systems the order of the
-- 
cgit 


From 828e9834e9a5b7e61046aa3c5f603a4fecba2fb4 Mon Sep 17 00:00:00 2001
From: Matthew Leach <matthew.leach@arm.com>
Date: Fri, 11 Oct 2013 14:52:16 +0100
Subject: arm64: head: create a new function for setting the boot_cpu_mode flag

Currently, the code for setting the __cpu_boot_mode flag is munged in
with el2_setup. This makes things difficult on a BE bringup as a
memory access has to have occurred before el2_setup which is the place
that we'd like to set the endianess on the current EL.

Create a new function for setting __cpu_boot_mode and have el2_setup
return the mode the CPU. Also define a new constant in virt.h,
BOOT_CPU_MODE_EL1, for readability.

Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Matthew Leach <matthew.leach@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/include/asm/virt.h |  3 ++-
 arch/arm64/kernel/head.S      | 34 +++++++++++++++++++++++++---------
 2 files changed, 27 insertions(+), 10 deletions(-)

diff --git a/arch/arm64/include/asm/virt.h b/arch/arm64/include/asm/virt.h
index 26e310c54344..130e2be952cf 100644
--- a/arch/arm64/include/asm/virt.h
+++ b/arch/arm64/include/asm/virt.h
@@ -18,7 +18,8 @@
 #ifndef __ASM__VIRT_H
 #define __ASM__VIRT_H
 
-#define BOOT_CPU_MODE_EL2	(0x0e12b007)
+#define BOOT_CPU_MODE_EL1	(0xe11)
+#define BOOT_CPU_MODE_EL2	(0xe12)
 
 #ifndef __ASSEMBLY__
 #include <asm/cacheflush.h>
diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index bf7efdf2d7e7..775ecb313ee7 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -123,8 +123,9 @@
 
 ENTRY(stext)
 	mov	x21, x0				// x21=FDT
+	bl	el2_setup			// Drop to EL1, w20=cpu_boot_mode
 	bl	__calc_phys_offset		// x24=PHYS_OFFSET, x28=PHYS_OFFSET-PAGE_OFFSET
-	bl	el2_setup			// Drop to EL1
+	bl	set_cpu_boot_mode_flag
 	mrs	x22, midr_el1			// x22=cpuid
 	mov	x0, x22
 	bl	lookup_processor_type
@@ -150,21 +151,20 @@ ENDPROC(stext)
 /*
  * If we're fortunate enough to boot at EL2, ensure that the world is
  * sane before dropping to EL1.
+ *
+ * Returns either BOOT_CPU_MODE_EL1 or BOOT_CPU_MODE_EL2 in x20 if
+ * booted in EL1 or EL2 respectively.
  */
 ENTRY(el2_setup)
 	mrs	x0, CurrentEL
 	cmp	x0, #PSR_MODE_EL2t
 	ccmp	x0, #PSR_MODE_EL2h, #0x4, ne
-	ldr	x0, =__boot_cpu_mode		// Compute __boot_cpu_mode
-	add	x0, x0, x28
 	b.eq	1f
-	str	wzr, [x0]			// Remember we don't have EL2...
+	mov	w20, #BOOT_CPU_MODE_EL1		// This cpu booted in EL1
 	ret
 
 	/* Hyp configuration. */
-1:	ldr	w1, =BOOT_CPU_MODE_EL2
-	str	w1, [x0, #4]			// This CPU has EL2
-	mov	x0, #(1 << 31)			// 64-bit EL1
+1:	mov	x0, #(1 << 31)			// 64-bit EL1
 	msr	hcr_el2, x0
 
 	/* Generic timers. */
@@ -204,9 +204,24 @@ ENTRY(el2_setup)
 		      PSR_MODE_EL1h)
 	msr	spsr_el2, x0
 	msr	elr_el2, lr
+	mov	w20, #BOOT_CPU_MODE_EL2		// This CPU booted in EL2
 	eret
 ENDPROC(el2_setup)
 
+/*
+ * Sets the __boot_cpu_mode flag depending on the CPU boot mode passed
+ * in x20. See arch/arm64/include/asm/virt.h for more info.
+ */
+ENTRY(set_cpu_boot_mode_flag)
+	ldr	x1, =__boot_cpu_mode		// Compute __boot_cpu_mode
+	add	x1, x1, x28
+	cmp	w20, #BOOT_CPU_MODE_EL2
+	b.ne	1f
+	add	x1, x1, #4
+1:	str	w20, [x1]			// This CPU has booted in EL1
+	ret
+ENDPROC(set_cpu_boot_mode_flag)
+
 /*
  * We need to find out the CPU boot mode long after boot, so we need to
  * store it in a writable variable.
@@ -234,8 +249,9 @@ ENTRY(__boot_cpu_mode)
 	 * cores are held until we're ready for them to initialise.
 	 */
 ENTRY(secondary_holding_pen)
-	bl	__calc_phys_offset		// x24=phys offset
-	bl	el2_setup			// Drop to EL1
+	bl	el2_setup			// Drop to EL1, w20=cpu_boot_mode
+	bl	__calc_phys_offset		// x24=PHYS_OFFSET, x28=PHYS_OFFSET-PAGE_OFFSET
+	bl	set_cpu_boot_mode_flag
 	mrs	x0, mpidr_el1
 	ldr     x1, =MPIDR_HWID_BITMASK
 	and	x0, x0, x1
-- 
cgit 


From 9cf71728931a4073b9e3a4bcbf9dada86bc98370 Mon Sep 17 00:00:00 2001
From: Matthew Leach <matthew.leach@arm.com>
Date: Fri, 11 Oct 2013 14:52:17 +0100
Subject: arm64: big-endian: set correct endianess on kernel entry

The endianness of memory accesses at EL2 and EL1 are configured by
SCTLR_EL2.EE and SCTLR_EL1.EE respectively. When the kernel is booted,
the state of SCTLR_EL{2,1}.EE is unknown, and thus the kernel must
ensure that they are set before performing any memory accesses.

This patch ensures that SCTLR_EL{2,1} are configured appropriately at
boot for kernels of either endianness.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Matthew Leach <matthew.leach@arm.com>
[catalin.marinas@arm.com: fix SCTLR_EL1.E0E bit setting in head.S]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kernel/head.S | 17 ++++++++++++++---
 arch/arm64/mm/proc.S     |  4 ++--
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S
index 775ecb313ee7..7009387348b7 100644
--- a/arch/arm64/kernel/head.S
+++ b/arch/arm64/kernel/head.S
@@ -159,12 +159,22 @@ ENTRY(el2_setup)
 	mrs	x0, CurrentEL
 	cmp	x0, #PSR_MODE_EL2t
 	ccmp	x0, #PSR_MODE_EL2h, #0x4, ne
-	b.eq	1f
+	b.ne	1f
+	mrs	x0, sctlr_el2
+CPU_BE(	orr	x0, x0, #(1 << 25)	)	// Set the EE bit for EL2
+CPU_LE(	bic	x0, x0, #(1 << 25)	)	// Clear the EE bit for EL2
+	msr	sctlr_el2, x0
+	b	2f
+1:	mrs	x0, sctlr_el1
+CPU_BE(	orr	x0, x0, #(3 << 24)	)	// Set the EE and E0E bits for EL1
+CPU_LE(	bic	x0, x0, #(3 << 24)	)	// Clear the EE and E0E bits for EL1
+	msr	sctlr_el1, x0
 	mov	w20, #BOOT_CPU_MODE_EL1		// This cpu booted in EL1
+	isb
 	ret
 
 	/* Hyp configuration. */
-1:	mov	x0, #(1 << 31)			// 64-bit EL1
+2:	mov	x0, #(1 << 31)			// 64-bit EL1
 	msr	hcr_el2, x0
 
 	/* Generic timers. */
@@ -181,7 +191,8 @@ ENTRY(el2_setup)
 
 	/* sctlr_el1 */
 	mov	x0, #0x0800			// Set/clear RES{1,0} bits
-	movk	x0, #0x30d0, lsl #16
+CPU_BE(	movk	x0, #0x33d0, lsl #16	)	// Set EE and E0E on BE systems
+CPU_LE(	movk	x0, #0x30d0, lsl #16	)	// Clear EE and E0E on LE systems
 	msr	sctlr_el1, x0
 
 	/* Coprocessor traps. */
diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S
index b1b31bbc967b..421b99fd635d 100644
--- a/arch/arm64/mm/proc.S
+++ b/arch/arm64/mm/proc.S
@@ -162,9 +162,9 @@ ENDPROC(__cpu_setup)
 	 *       CE0      XWHW CZ     ME TEEA S
 	 * .... .IEE .... NEAI TE.I ..AD DEN0 ACAM
 	 * 0011 0... 1101 ..0. ..0. 10.. .... .... < hardware reserved
-	 * .... .100 .... 01.1 11.1 ..01 0001 1101 < software settings
+	 * .... .1.. .... 01.1 11.1 ..01 0001 1101 < software settings
 	 */
 	.type	crval, #object
 crval:
-	.word	0x030802e2			// clear
+	.word	0x000802e2			// clear
 	.word	0x0405d11d			// set
-- 
cgit 


From 710be9ac4ea0d2e02a2c4aa625795e65bf3db5b1 Mon Sep 17 00:00:00 2001
From: Matthew Leach <matthew.leach@arm.com>
Date: Fri, 11 Oct 2013 14:52:18 +0100
Subject: arm64: big-endian: write CPU holding pen address as LE

Currently when CPUs are brought online via a spin-table, the address
they should jump to is written to the cpu-release-addr in the kernel's
native endianness. As the kernel may switch endianness, secondaries
might read the value byte-reversed from what was intended, and they
would jump to the wrong address.

As the only current arm64 spin-table implementations are
little-endian, stricten up the arm64 spin-table definition such that
the value written to cpu-release-addr is _always_ little-endian
regardless of the endianness of any CPU. If a spinning CPU is
operating big-endian, it must byte-reverse the value before jumping to
handle this.

Signed-off-by: Matthew Leach <matthew.leach@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kernel/smp_spin_table.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/smp_spin_table.c b/arch/arm64/kernel/smp_spin_table.c
index 27f08367a6e7..44c22805d2e2 100644
--- a/arch/arm64/kernel/smp_spin_table.c
+++ b/arch/arm64/kernel/smp_spin_table.c
@@ -72,7 +72,16 @@ static int smp_spin_table_cpu_prepare(unsigned int cpu)
 		return -ENODEV;
 
 	release_addr = __va(cpu_release_addr[cpu]);
-	release_addr[0] = (void *)__pa(secondary_holding_pen);
+
+	/*
+	 * We write the release address as LE regardless of the native
+	 * endianess of the kernel. Therefore, any boot-loaders that
+	 * read this address need to convert this address to the
+	 * boot-loader's endianess before jumping. This is mandated by
+	 * the boot protocol.
+	 */
+	release_addr[0] = (void *) cpu_to_le64(__pa(secondary_holding_pen));
+
 	__flush_dcache_area(release_addr, sizeof(release_addr[0]));
 
 	/*
-- 
cgit 


From 4a12cae7ef2612eb094c4b48e8b37cf837e3df55 Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Fri, 25 Oct 2013 15:48:33 +0100
Subject: arm64: Fix the endianness of arch_spinlock_t

The owner and next members of the arch_spinlock_t structure need to be
swapped when compiling for big endian.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Matthew Leach <matthew.leach@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
---
 arch/arm64/include/asm/spinlock_types.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/include/asm/spinlock_types.h b/arch/arm64/include/asm/spinlock_types.h
index 87692750ed94..b8d383665f56 100644
--- a/arch/arm64/include/asm/spinlock_types.h
+++ b/arch/arm64/include/asm/spinlock_types.h
@@ -23,8 +23,13 @@
 #define TICKET_SHIFT	16
 
 typedef struct {
+#ifdef __AARCH64EB__
+	u16 next;
+	u16 owner;
+#else
 	u16 owner;
 	u16 next;
+#endif
 } __aligned(4) arch_spinlock_t;
 
 #define __ARCH_SPIN_LOCK_UNLOCKED	{ 0 , 0 }
-- 
cgit 


From a872013d6d03ab63736a01dcd9747580be3a6b70 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Fri, 11 Oct 2013 14:52:19 +0100
Subject: arm64: kconfig: allow CPU_BIG_ENDIAN to be selected

This patch wires up CONFIG_CPU_BIG_ENDIAN for the AArch64 kernel
configuration.

Selecting this option builds a big-endian kernel which can boot into a
big-endian userspace.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/Kconfig | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 86ebfe499d6a..bbb5d9480130 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -139,6 +139,11 @@ config ARM64_64K_PAGES
 	  look-up. AArch32 emulation is not available when this feature
 	  is enabled.
 
+config CPU_BIG_ENDIAN
+       bool "Build big-endian kernel"
+       help
+         Say Y if you plan on running a kernel in big-endian mode.
+
 config SMP
 	bool "Symmetric Multi-Processing"
 	select USE_GENERIC_SMP_HELPERS
-- 
cgit 


From c019de3de61387d224ba4738e3d196aa24c88844 Mon Sep 17 00:00:00 2001
From: Vinayak Kale <vkale@apm.com>
Date: Fri, 18 Oct 2013 13:59:06 +0100
Subject: arm64: perf: fix event number mask

This patch fixes ARMV8_EVTYPE_* macros since evtCount (event number)
field width is 10bits in event selection register.

Signed-off-by: Vinayak Kale <vkale@apm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kernel/perf_event.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index cea1594ff933..5d14470452ac 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -784,8 +784,8 @@ static const unsigned armv8_pmuv3_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
 /*
  * PMXEVTYPER: Event selection reg
  */
-#define	ARMV8_EVTYPE_MASK	0xc80000ff	/* Mask for writable bits */
-#define	ARMV8_EVTYPE_EVENT	0xff		/* Mask for EVENT bits */
+#define	ARMV8_EVTYPE_MASK	0xc80003ff	/* Mask for writable bits */
+#define	ARMV8_EVTYPE_EVENT	0x3ff		/* Mask for EVENT bits */
 
 /*
  * Event filters for PMUv3
@@ -1175,7 +1175,8 @@ static void armv8pmu_reset(void *info)
 static int armv8_pmuv3_map_event(struct perf_event *event)
 {
 	return map_cpu_event(event, &armv8_pmuv3_perf_map,
-				&armv8_pmuv3_perf_cache_map, 0xFF);
+				&armv8_pmuv3_perf_cache_map,
+				ARMV8_EVTYPE_EVENT);
 }
 
 static struct arm_pmu armv8pmu = {
-- 
cgit 


From 6dd17757927ba9d23c604fee6fe72b4755c7ea7f Mon Sep 17 00:00:00 2001
From: Brian Austin <brian.austin@cirrus.com>
Date: Fri, 25 Oct 2013 10:01:14 -0500
Subject: ASoC: cs42l52: Add platform data for reset gpio

This patch adds platform data support for a reset GPIO.
Also uses reset_gpio to toggle reset of the CODEC

Signed-off-by: Brian Austin <brian.austin@cirrus.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 include/sound/cs42l52.h    |  2 ++
 sound/soc/codecs/cs42l52.c | 21 +++++++++++++++++----
 2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/include/sound/cs42l52.h b/include/sound/cs42l52.h
index 4c68955f7330..7c2be4a51894 100644
--- a/include/sound/cs42l52.h
+++ b/include/sound/cs42l52.h
@@ -31,6 +31,8 @@ struct cs42l52_platform_data {
 	/* Charge Pump Freq. Check datasheet Pg73 */
 	unsigned int chgfreq;
 
+	/* Reset GPIO */
+	unsigned int reset_gpio;
 };
 
 #endif /* __CS42L52_H */
diff --git a/sound/soc/codecs/cs42l52.c b/sound/soc/codecs/cs42l52.c
index be2ba1b6fe4a..8367f3c571eb 100644
--- a/sound/soc/codecs/cs42l52.c
+++ b/sound/soc/codecs/cs42l52.c
@@ -17,6 +17,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/delay.h>
+#include <linux/gpio.h>
 #include <linux/pm.h>
 #include <linux/i2c.h>
 #include <linux/input.h>
@@ -1205,6 +1206,7 @@ static int cs42l52_i2c_probe(struct i2c_client *i2c_client,
 			     const struct i2c_device_id *id)
 {
 	struct cs42l52_private *cs42l52;
+	struct cs42l52_platform_data *pdata = dev_get_platdata(&i2c_client->dev);
 	int ret;
 	unsigned int devid = 0;
 	unsigned int reg;
@@ -1222,11 +1224,22 @@ static int cs42l52_i2c_probe(struct i2c_client *i2c_client,
 		return ret;
 	}
 
-	i2c_set_clientdata(i2c_client, cs42l52);
+	if (pdata)
+		cs42l52->pdata = *pdata;
 
-	if (dev_get_platdata(&i2c_client->dev))
-		memcpy(&cs42l52->pdata, dev_get_platdata(&i2c_client->dev),
-		       sizeof(cs42l52->pdata));
+	if (cs42l52->pdata.reset_gpio) {
+		ret = gpio_request_one(cs42l52->pdata.reset_gpio,
+				       GPIOF_OUT_INIT_HIGH, "CS42L52 /RST");
+		if (ret < 0) {
+			dev_err(&i2c_client->dev, "Failed to request /RST %d: %d\n",
+				cs42l52->pdata.reset_gpio, ret);
+			return ret;
+		}
+		gpio_set_value_cansleep(cs42l52->pdata.reset_gpio, 0);
+		gpio_set_value_cansleep(cs42l52->pdata.reset_gpio, 1);
+	}
+
+	i2c_set_clientdata(i2c_client, cs42l52);
 
 	ret = regmap_register_patch(cs42l52->regmap, cs42l52_threshold_patch,
 				    ARRAY_SIZE(cs42l52_threshold_patch));
-- 
cgit 


From 153723f6f1d13e7b9541b425ebdbaead4cc85346 Mon Sep 17 00:00:00 2001
From: Brian Austin <brian.austin@cirrus.com>
Date: Fri, 25 Oct 2013 10:01:16 -0500
Subject: ASoC: cs42l52: convert pdata config to regmap_update_bits

Moving platform data to bus probe and convert to regmap_update_bits.
This will work nicer when converted to device tree instead of having it
split into multiple probes

Signed-off-by: Brian Austin <brian.austin@cirrus.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/cs42l52.c | 69 +++++++++++++++++++++++-----------------------
 1 file changed, 34 insertions(+), 35 deletions(-)

diff --git a/sound/soc/codecs/cs42l52.c b/sound/soc/codecs/cs42l52.c
index 8367f3c571eb..56c5611fa752 100644
--- a/sound/soc/codecs/cs42l52.c
+++ b/sound/soc/codecs/cs42l52.c
@@ -1117,40 +1117,6 @@ static int cs42l52_probe(struct snd_soc_codec *codec)
 	cs42l52->sysclk = CS42L52_DEFAULT_CLK;
 	cs42l52->config.format = CS42L52_DEFAULT_FORMAT;
 
-	/* Set Platform MICx CFG */
-	snd_soc_update_bits(codec, CS42L52_MICA_CTL,
-			    CS42L52_MIC_CTL_TYPE_MASK,
-				cs42l52->pdata.mica_cfg <<
-				CS42L52_MIC_CTL_TYPE_SHIFT);
-
-	snd_soc_update_bits(codec, CS42L52_MICB_CTL,
-			    CS42L52_MIC_CTL_TYPE_MASK,
-				cs42l52->pdata.micb_cfg <<
-				CS42L52_MIC_CTL_TYPE_SHIFT);
-
-	/* if Single Ended, Get Mic_Select */
-	if (cs42l52->pdata.mica_cfg)
-		snd_soc_update_bits(codec, CS42L52_MICA_CTL,
-				    CS42L52_MIC_CTL_MIC_SEL_MASK,
-				cs42l52->pdata.mica_sel <<
-				CS42L52_MIC_CTL_MIC_SEL_SHIFT);
-	if (cs42l52->pdata.micb_cfg)
-		snd_soc_update_bits(codec, CS42L52_MICB_CTL,
-				    CS42L52_MIC_CTL_MIC_SEL_MASK,
-				cs42l52->pdata.micb_sel <<
-				CS42L52_MIC_CTL_MIC_SEL_SHIFT);
-
-	/* Set Platform Charge Pump Freq */
-	snd_soc_update_bits(codec, CS42L52_CHARGE_PUMP,
-			    CS42L52_CHARGE_PUMP_MASK,
-				cs42l52->pdata.chgfreq <<
-				CS42L52_CHARGE_PUMP_SHIFT);
-
-	/* Set Platform Bias Level */
-	snd_soc_update_bits(codec, CS42L52_IFACE_CTL2,
-			    CS42L52_IFACE_CTL2_BIAS_LVL,
-				cs42l52->pdata.micbias_lvl);
-
 	return ret;
 }
 
@@ -1257,7 +1223,40 @@ static int cs42l52_i2c_probe(struct i2c_client *i2c_client,
 		return ret;
 	}
 
-	regcache_cache_only(cs42l52->regmap, true);
+	/* Set Platform Data */
+	if (cs42l52->pdata.mica_cfg)
+		regmap_update_bits(cs42l52->regmap, CS42L52_MICA_CTL,
+				   CS42L52_MIC_CTL_TYPE_MASK,
+				cs42l52->pdata.mica_cfg <<
+				CS42L52_MIC_CTL_TYPE_SHIFT);
+
+	if (cs42l52->pdata.micb_cfg)
+		regmap_update_bits(cs42l52->regmap, CS42L52_MICB_CTL,
+				   CS42L52_MIC_CTL_TYPE_MASK,
+				cs42l52->pdata.micb_cfg <<
+				CS42L52_MIC_CTL_TYPE_SHIFT);
+
+	if (cs42l52->pdata.mica_sel)
+		regmap_update_bits(cs42l52->regmap, CS42L52_MICA_CTL,
+				   CS42L52_MIC_CTL_MIC_SEL_MASK,
+				cs42l52->pdata.mica_sel <<
+				CS42L52_MIC_CTL_MIC_SEL_SHIFT);
+	if (cs42l52->pdata.micb_sel)
+		regmap_update_bits(cs42l52->regmap, CS42L52_MICB_CTL,
+				   CS42L52_MIC_CTL_MIC_SEL_MASK,
+				cs42l52->pdata.micb_sel <<
+				CS42L52_MIC_CTL_MIC_SEL_SHIFT);
+
+	if (cs42l52->pdata.chgfreq)
+		regmap_update_bits(cs42l52->regmap, CS42L52_CHARGE_PUMP,
+				   CS42L52_CHARGE_PUMP_MASK,
+				cs42l52->pdata.chgfreq <<
+				CS42L52_CHARGE_PUMP_SHIFT);
+
+	if (cs42l52->pdata.micbias_lvl)
+		regmap_update_bits(cs42l52->regmap, CS42L52_IFACE_CTL2,
+				   CS42L52_IFACE_CTL2_BIAS_LVL,
+				cs42l52->pdata.micbias_lvl);
 
 	ret =  snd_soc_register_codec(&i2c_client->dev,
 			&soc_codec_dev_cs42l52, &cs42l52_dai, 1);
-- 
cgit 


From e5f03af644c46b8713ddf5df545a32c1af8557ed Mon Sep 17 00:00:00 2001
From: Brian Austin <brian.austin@cirrus.com>
Date: Fri, 25 Oct 2013 10:01:17 -0500
Subject: ASoC: cs42l52: Add chip rev id message

This patch adds a print message at bootup for the CODEC Rev ID

Signed-off-by: Brian Austin <brian.austin@cirrus.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/cs42l52.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/codecs/cs42l52.c b/sound/soc/codecs/cs42l52.c
index 56c5611fa752..8b427c977083 100644
--- a/sound/soc/codecs/cs42l52.c
+++ b/sound/soc/codecs/cs42l52.c
@@ -1223,6 +1223,9 @@ static int cs42l52_i2c_probe(struct i2c_client *i2c_client,
 		return ret;
 	}
 
+	dev_info(&i2c_client->dev, "Cirrus Logic CS42L52, Revision: %02X\n",
+			reg & 0xFF);
+
 	/* Set Platform Data */
 	if (cs42l52->pdata.mica_cfg)
 		regmap_update_bits(cs42l52->regmap, CS42L52_MICA_CTL,
-- 
cgit 


From 954e04b9491adea99e4590bc73937fdd8774ab3c Mon Sep 17 00:00:00 2001
From: Bryan Wu <cooloney@gmail.com>
Date: Tue, 24 Sep 2013 10:38:26 -0700
Subject: of: introduce of_get_available_child_count

Some drivers keep counting available child by themselves. So
introduce a new simple API like of_get_child_count() but for
available childs.

Cc: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
---
 include/linux/of.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/include/linux/of.h b/include/linux/of.h
index f95aee391e30..54c25606a997 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -226,6 +226,17 @@ static inline int of_get_child_count(const struct device_node *np)
 	return num;
 }
 
+static inline int of_get_available_child_count(const struct device_node *np)
+{
+	struct device_node *child;
+	int num = 0;
+
+	for_each_available_child_of_node(np, child)
+		num++;
+
+	return num;
+}
+
 extern struct device_node *of_find_node_with_property(
 	struct device_node *from, const char *prop_name);
 #define for_each_node_with_property(dn, prop_name) \
@@ -376,6 +387,11 @@ static inline int of_get_child_count(const struct device_node *np)
 	return 0;
 }
 
+static inline int of_get_available_child_count(const struct device_node *np)
+{
+	return 0;
+}
+
 static inline int of_device_is_compatible(const struct device_node *device,
 					  const char *name)
 {
-- 
cgit 


From b0bb83df0a004ff6ef9b1a11784361c9eb63dbf9 Mon Sep 17 00:00:00 2001
From: Josh Wu <josh.wu@atmel.com>
Date: Thu, 26 Sep 2013 04:27:56 -0700
Subject: leds-gpio: of: led should not be created if its status is disabled

now the leds-gpio driver will create every child led node without
checking the status is disabled or not.

for example, if we have a led node like d3, and its status is disabled:
	leds {
		d3 {
			label = "d3";
			gpios = <&pioE 24 0>;
			status = "disabled";
		};
	};

we except the d3 should not be created. And the gpios should not be
request as well.

But current driver will create d3 and request its gpio.

This patch fix this by using for_each_available_child_of_node() and
of_get_available_child_count() to enumerate all child nodes. So the
disabled node will be inavailable.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
---
 drivers/leds/leds-gpio.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index 7ccafdeab9c1..78b0e273a903 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -171,11 +171,11 @@ static struct gpio_leds_priv *gpio_leds_create_of(struct platform_device *pdev)
 	int count, ret;
 
 	/* count LEDs in this device, so we know how much to allocate */
-	count = of_get_child_count(np);
+	count = of_get_available_child_count(np);
 	if (!count)
 		return ERR_PTR(-ENODEV);
 
-	for_each_child_of_node(np, child)
+	for_each_available_child_of_node(np, child)
 		if (of_get_gpio(child, 0) == -EPROBE_DEFER)
 			return ERR_PTR(-EPROBE_DEFER);
 
@@ -184,7 +184,7 @@ static struct gpio_leds_priv *gpio_leds_create_of(struct platform_device *pdev)
 	if (!priv)
 		return ERR_PTR(-ENOMEM);
 
-	for_each_child_of_node(np, child) {
+	for_each_available_child_of_node(np, child) {
 		struct gpio_led led = {};
 		enum of_gpio_flags flags;
 		const char *state;
-- 
cgit 


From 30dae2f98612d7c8cd855861b9de205ebd9ef4fa Mon Sep 17 00:00:00 2001
From: Sebastian Reichel <sre@debian.org>
Date: Tue, 22 Oct 2013 11:02:56 -0700
Subject: leds: lp55xx: handle enable pin in driver

This patch moves the handling of the chip's enable pin from the board
code into the driver. It also updates all board-code files using the
driver to incorporate this change.

This is needed for device tree support of the enable pin.

Signed-off-by: Sebastian Reichel <sre@debian.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
---
 .../devicetree/bindings/leds/leds-lp55xx.txt       |  1 +
 arch/arm/mach-omap2/board-rx51-peripherals.c       | 20 +----------------
 arch/arm/mach-ux500/board-mop500.c                 |  2 ++
 drivers/leds/leds-lp55xx-common.c                  | 25 +++++++++++-----------
 include/linux/platform_data/leds-lp55xx.h          |  6 ++----
 5 files changed, 19 insertions(+), 35 deletions(-)

diff --git a/Documentation/devicetree/bindings/leds/leds-lp55xx.txt b/Documentation/devicetree/bindings/leds/leds-lp55xx.txt
index d221e75d90fa..c55b8c016a9e 100644
--- a/Documentation/devicetree/bindings/leds/leds-lp55xx.txt
+++ b/Documentation/devicetree/bindings/leds/leds-lp55xx.txt
@@ -10,6 +10,7 @@ Each child has own specific current settings
 - max-cur: Maximun current at each led channel.
 
 Optional properties:
+- enable-gpio: GPIO attached to the chip's enable pin
 - label: Used for naming LEDs
 - pwr-sel: LP8501 specific property. Power selection for output channels.
          0: D1~9 are connected to VDD
diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
index f6fe388af989..68dc998fa34b 100644
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -211,29 +211,11 @@ static struct lp55xx_led_config rx51_lp5523_led_config[] = {
 	}
 };
 
-static int rx51_lp5523_setup(void)
-{
-	return gpio_request_one(RX51_LP5523_CHIP_EN_GPIO, GPIOF_DIR_OUT,
-			"lp5523_enable");
-}
-
-static void rx51_lp5523_release(void)
-{
-	gpio_free(RX51_LP5523_CHIP_EN_GPIO);
-}
-
-static void rx51_lp5523_enable(bool state)
-{
-	gpio_set_value(RX51_LP5523_CHIP_EN_GPIO, !!state);
-}
-
 static struct lp55xx_platform_data rx51_lp5523_platform_data = {
 	.led_config		= rx51_lp5523_led_config,
 	.num_channels		= ARRAY_SIZE(rx51_lp5523_led_config),
 	.clock_mode		= LP55XX_CLOCK_AUTO,
-	.setup_resources	= rx51_lp5523_setup,
-	.release_resources	= rx51_lp5523_release,
-	.enable			= rx51_lp5523_enable,
+	.enable_gpio		= RX51_LP5523_CHIP_EN_GPIO,
 };
 #endif
 
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index ad0806eff762..703dec2b7d8d 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -297,6 +297,7 @@ static struct lp55xx_platform_data __initdata lp5521_pri_data = {
        .led_config     = &lp5521_pri_led[0],
        .num_channels   = 3,
        .clock_mode     = LP55XX_CLOCK_EXT,
+       .enable_gpio    = -1,
 };
 
 static struct lp55xx_led_config lp5521_sec_led[] = {
@@ -322,6 +323,7 @@ static struct lp55xx_platform_data __initdata lp5521_sec_data = {
        .led_config     = &lp5521_sec_led[0],
        .num_channels   = 3,
        .clock_mode     = LP55XX_CLOCK_EXT,
+       .enable_gpio    = -1,
 };
 
 /* I2C0 devices only available on the first HREF/MOP500 */
diff --git a/drivers/leds/leds-lp55xx-common.c b/drivers/leds/leds-lp55xx-common.c
index 075acf5b9fab..9acc6bb7deef 100644
--- a/drivers/leds/leds-lp55xx-common.c
+++ b/drivers/leds/leds-lp55xx-common.c
@@ -20,6 +20,8 @@
 #include <linux/module.h>
 #include <linux/platform_data/leds-lp55xx.h>
 #include <linux/slab.h>
+#include <linux/gpio.h>
+#include <linux/of_gpio.h>
 
 #include "leds-lp55xx-common.h"
 
@@ -407,18 +409,18 @@ int lp55xx_init_device(struct lp55xx_chip *chip)
 	if (!pdata || !cfg)
 		return -EINVAL;
 
-	if (pdata->setup_resources) {
-		ret = pdata->setup_resources();
+	if (gpio_is_valid(pdata->enable_gpio)) {
+		ret = devm_gpio_request_one(dev, pdata->enable_gpio,
+					    GPIOF_DIR_OUT, "lp5523_enable");
 		if (ret < 0) {
-			dev_err(dev, "setup resoure err: %d\n", ret);
+			dev_err(dev, "could not acquire enable gpio (err=%d)\n",
+				ret);
 			goto err;
 		}
-	}
 
-	if (pdata->enable) {
-		pdata->enable(0);
+		gpio_set_value(pdata->enable_gpio, 0);
 		usleep_range(1000, 2000); /* Keep enable down at least 1ms */
-		pdata->enable(1);
+		gpio_set_value(pdata->enable_gpio, 1);
 		usleep_range(1000, 2000); /* 500us abs min. */
 	}
 
@@ -459,11 +461,8 @@ void lp55xx_deinit_device(struct lp55xx_chip *chip)
 	if (chip->clk)
 		clk_disable_unprepare(chip->clk);
 
-	if (pdata->enable)
-		pdata->enable(0);
-
-	if (pdata->release_resources)
-		pdata->release_resources();
+	if (gpio_is_valid(pdata->enable_gpio))
+		gpio_set_value(pdata->enable_gpio, 0);
 }
 EXPORT_SYMBOL_GPL(lp55xx_deinit_device);
 
@@ -596,6 +595,8 @@ int lp55xx_of_populate_pdata(struct device *dev, struct device_node *np)
 	of_property_read_string(np, "label", &pdata->label);
 	of_property_read_u8(np, "clock-mode", &pdata->clock_mode);
 
+	pdata->enable_gpio = of_get_named_gpio(np, "enable-gpio", 0);
+
 	/* LP8501 specific */
 	of_property_read_u8(np, "pwr-sel", (u8 *)&pdata->pwr_sel);
 
diff --git a/include/linux/platform_data/leds-lp55xx.h b/include/linux/platform_data/leds-lp55xx.h
index c32de4dcec54..624ff9edad6f 100644
--- a/include/linux/platform_data/leds-lp55xx.h
+++ b/include/linux/platform_data/leds-lp55xx.h
@@ -67,10 +67,8 @@ struct lp55xx_platform_data {
 	/* Clock configuration */
 	u8 clock_mode;
 
-	/* Platform specific functions */
-	int (*setup_resources)(void);
-	void (*release_resources)(void);
-	void (*enable)(bool state);
+	/* optional enable GPIO */
+	int enable_gpio;
 
 	/* Predefined pattern data */
 	struct lp55xx_predef_pattern *patterns;
-- 
cgit 


From 089bc8e95ae07b1ada14069935c30fd88204c21c Mon Sep 17 00:00:00 2001
From: Dmitry Kasatkin <d.kasatkin@samsung.com>
Date: Thu, 10 Oct 2013 15:56:13 +0900
Subject: ima: fix script messages

Fix checkpatch, lindent, etc, warnings/errors

Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 security/integrity/digsig.c            |  2 +-
 security/integrity/evm/evm_posix_acl.c |  3 ++-
 security/integrity/ima/ima_appraise.c  |  6 +++---
 security/integrity/ima/ima_fs.c        |  3 +--
 security/integrity/ima/ima_main.c      | 10 +++++-----
 security/integrity/integrity.h         |  2 +-
 6 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/security/integrity/digsig.c b/security/integrity/digsig.c
index 0b759e17a131..198e60903685 100644
--- a/security/integrity/digsig.c
+++ b/security/integrity/digsig.c
@@ -28,7 +28,7 @@ static const char *keyring_name[INTEGRITY_KEYRING_MAX] = {
 };
 
 int integrity_digsig_verify(const unsigned int id, const char *sig, int siglen,
-					const char *digest, int digestlen)
+			    const char *digest, int digestlen)
 {
 	if (id >= INTEGRITY_KEYRING_MAX)
 		return -EINVAL;
diff --git a/security/integrity/evm/evm_posix_acl.c b/security/integrity/evm/evm_posix_acl.c
index b1753e98bf9a..46408b9e62e8 100644
--- a/security/integrity/evm/evm_posix_acl.c
+++ b/security/integrity/evm/evm_posix_acl.c
@@ -11,8 +11,9 @@
 
 #include <linux/module.h>
 #include <linux/xattr.h>
+#include <linux/evm.h>
 
-int posix_xattr_acl(char *xattr)
+int posix_xattr_acl(const char *xattr)
 {
 	int xattr_len = strlen(xattr);
 
diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c
index 2d4becab8918..e3230d6a8d96 100644
--- a/security/integrity/ima/ima_appraise.c
+++ b/security/integrity/ima/ima_appraise.c
@@ -55,7 +55,7 @@ static int ima_fix_xattr(struct dentry *dentry,
 enum integrity_status ima_get_cache_status(struct integrity_iint_cache *iint,
 					   int func)
 {
-	switch(func) {
+	switch (func) {
 	case MMAP_CHECK:
 		return iint->ima_mmap_status;
 	case BPRM_CHECK:
@@ -71,7 +71,7 @@ enum integrity_status ima_get_cache_status(struct integrity_iint_cache *iint,
 static void ima_set_cache_status(struct integrity_iint_cache *iint,
 				 int func, enum integrity_status status)
 {
-	switch(func) {
+	switch (func) {
 	case MMAP_CHECK:
 		iint->ima_mmap_status = status;
 		break;
@@ -90,7 +90,7 @@ static void ima_set_cache_status(struct integrity_iint_cache *iint,
 
 static void ima_cache_flags(struct integrity_iint_cache *iint, int func)
 {
-	switch(func) {
+	switch (func) {
 	case MMAP_CHECK:
 		iint->flags |= (IMA_MMAP_APPRAISED | IMA_APPRAISED);
 		break;
diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
index 38477c9c3415..5f0fd113433a 100644
--- a/security/integrity/ima/ima_fs.c
+++ b/security/integrity/ima/ima_fs.c
@@ -88,8 +88,7 @@ static void *ima_measurements_next(struct seq_file *m, void *v, loff_t *pos)
 	 * against concurrent list-extension
 	 */
 	rcu_read_lock();
-	qe = list_entry_rcu(qe->later.next,
-			    struct ima_queue_entry, later);
+	qe = list_entry_rcu(qe->later.next, struct ima_queue_entry, later);
 	rcu_read_unlock();
 	(*pos)++;
 
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index e9508d5bbfcf..0f359df6344c 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -244,9 +244,9 @@ int ima_file_mmap(struct file *file, unsigned long prot)
 int ima_bprm_check(struct linux_binprm *bprm)
 {
 	return process_measurement(bprm->file,
-				 (strcmp(bprm->filename, bprm->interp) == 0) ?
-				 bprm->filename : bprm->interp,
-				 MAY_EXEC, BPRM_CHECK);
+				   (strcmp(bprm->filename, bprm->interp) == 0) ?
+				   bprm->filename : bprm->interp,
+				   MAY_EXEC, BPRM_CHECK);
 }
 
 /**
@@ -263,8 +263,8 @@ int ima_file_check(struct file *file, int mask)
 {
 	ima_rdwr_violation_check(file);
 	return process_measurement(file, NULL,
-				 mask & (MAY_READ | MAY_WRITE | MAY_EXEC),
-				 FILE_CHECK);
+				   mask & (MAY_READ | MAY_WRITE | MAY_EXEC),
+				   FILE_CHECK);
 }
 EXPORT_SYMBOL_GPL(ima_file_check);
 
diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h
index c42fb7a70dee..f86731649f54 100644
--- a/security/integrity/integrity.h
+++ b/security/integrity/integrity.h
@@ -89,7 +89,7 @@ struct integrity_iint_cache *integrity_iint_find(struct inode *inode);
 #ifdef CONFIG_INTEGRITY_SIGNATURE
 
 int integrity_digsig_verify(const unsigned int id, const char *sig, int siglen,
-					const char *digest, int digestlen);
+			    const char *digest, int digestlen);
 
 #else
 
-- 
cgit 


From 08de59eb144d7c41351a467442f898d720f0f15f Mon Sep 17 00:00:00 2001
From: Mimi Zohar <zohar@linux.vnet.ibm.com>
Date: Thu, 17 Oct 2013 07:34:02 -0400
Subject: Revert "ima: policy for RAMFS"

This reverts commit 4c2c392763a682354fac65b6a569adec4e4b5387.

Everything in the initramfs should be measured and appraised,
but until the initramfs has extended attribute support, at
least measured.

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Cc: Stable Kernel <stable@kernel.org>
---
 security/integrity/ima/ima_policy.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
index 399433ad614e..a9c3d3cd1990 100644
--- a/security/integrity/ima/ima_policy.c
+++ b/security/integrity/ima/ima_policy.c
@@ -73,7 +73,6 @@ static struct ima_rule_entry default_rules[] = {
 	{.action = DONT_MEASURE,.fsmagic = SYSFS_MAGIC,.flags = IMA_FSMAGIC},
 	{.action = DONT_MEASURE,.fsmagic = DEBUGFS_MAGIC,.flags = IMA_FSMAGIC},
 	{.action = DONT_MEASURE,.fsmagic = TMPFS_MAGIC,.flags = IMA_FSMAGIC},
-	{.action = DONT_MEASURE,.fsmagic = RAMFS_MAGIC,.flags = IMA_FSMAGIC},
 	{.action = DONT_MEASURE,.fsmagic = DEVPTS_SUPER_MAGIC,.flags = IMA_FSMAGIC},
 	{.action = DONT_MEASURE,.fsmagic = BINFMTFS_MAGIC,.flags = IMA_FSMAGIC},
 	{.action = DONT_MEASURE,.fsmagic = SECURITYFS_MAGIC,.flags = IMA_FSMAGIC},
-- 
cgit 


From f82bf8e2c8be73ebd719807bf054721930371174 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 25 Oct 2013 18:06:09 +0200
Subject: ASoC: dmaengine: Use SNDRV_PCM_STREAM_LAST for array size

... to make the meaning more obvious.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/soc-generic-dmaengine-pcm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c
index 0c469cbbe881..ee0790337ec9 100644
--- a/sound/soc/soc-generic-dmaengine-pcm.c
+++ b/sound/soc/soc-generic-dmaengine-pcm.c
@@ -25,7 +25,7 @@
 #include <sound/dmaengine_pcm.h>
 
 struct dmaengine_pcm {
-	struct dma_chan *chan[SNDRV_PCM_STREAM_CAPTURE + 1];
+	struct dma_chan *chan[SNDRV_PCM_STREAM_LAST + 1];
 	const struct snd_dmaengine_pcm_config *config;
 	struct snd_soc_platform platform;
 	unsigned int flags;
-- 
cgit 


From aab554ede931eddaca2e9b38c12489ae3f83fbe3 Mon Sep 17 00:00:00 2001
From: Brian Austin <brian.austin@cirrus.com>
Date: Fri, 25 Oct 2013 10:01:15 -0500
Subject: ASoC: cs42l52: increase MAX_REGISTER for regmap_register_patch

regmap_register_patch fails without the MAX_REGISTER set to highest
register written to. Increase to register 0x47

Signed-off-by: Brian Austin <brian.austin@cirrus.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/cs42l52.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/cs42l52.h b/sound/soc/codecs/cs42l52.h
index 4277012c4719..1a9412d86d17 100644
--- a/sound/soc/codecs/cs42l52.h
+++ b/sound/soc/codecs/cs42l52.h
@@ -269,6 +269,6 @@
 #define CS42L52_FIX_BITS1			0x3E
 #define CS42L52_FIX_BITS2			0x47
 
-#define CS42L52_MAX_REGISTER			0x34
+#define CS42L52_MAX_REGISTER			0x47
 
 #endif
-- 
cgit 


From 5d4879cda67b09f086807821cf594ee079d6dfbe Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Thu, 19 Sep 2013 16:03:50 -0500
Subject: PM / OPP: rename functions to dev_pm_opp*

Since Operating Performance Points (OPP) functions are specific to
device specific power management, be specific and rename opp_*
accessors in OPP library with dev_pm_opp_* equivalent.

Affected functions are:
 opp_get_voltage
 opp_get_freq
 opp_get_opp_count
 opp_find_freq_exact
 opp_find_freq_floor
 opp_find_freq_ceil
 opp_add
 opp_enable
 opp_disable
 opp_get_notifier
 opp_init_cpufreq_table
 opp_free_cpufreq_table

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 Documentation/power/opp.txt             | 102 ++++++++++++++++----------------
 arch/arm/mach-imx/mach-imx6q.c          |   2 +-
 arch/arm/mach-omap2/board-omap3beagle.c |   8 +--
 arch/arm/mach-omap2/opp.c               |   4 +-
 arch/arm/mach-omap2/pm.c                |   4 +-
 drivers/base/power/opp.c                |  82 ++++++++++++-------------
 drivers/cpufreq/arm_big_little.c        |   6 +-
 drivers/cpufreq/cpufreq-cpu0.c          |  18 +++---
 drivers/cpufreq/exynos5440-cpufreq.c    |  13 ++--
 drivers/cpufreq/imx6q-cpufreq.c         |  20 +++----
 drivers/cpufreq/omap-cpufreq.c          |   8 +--
 drivers/devfreq/devfreq.c               |  14 ++---
 drivers/devfreq/exynos/exynos4_bus.c    |  21 +++----
 drivers/devfreq/exynos/exynos5_bus.c    |  18 +++---
 include/linux/opp.h                     |  50 ++++++++--------
 15 files changed, 187 insertions(+), 183 deletions(-)

diff --git a/Documentation/power/opp.txt b/Documentation/power/opp.txt
index 425c51d56aef..185367b1848f 100644
--- a/Documentation/power/opp.txt
+++ b/Documentation/power/opp.txt
@@ -71,14 +71,14 @@ operations until that OPP could be re-enabled if possible.
 
 OPP library facilitates this concept in it's implementation. The following
 operational functions operate only on available opps:
-opp_find_freq_{ceil, floor}, opp_get_voltage, opp_get_freq, opp_get_opp_count
-and opp_init_cpufreq_table
+opp_find_freq_{ceil, floor}, dev_pm_opp_get_voltage, dev_pm_opp_get_freq, dev_pm_opp_get_opp_count
+and dev_pm_opp_init_cpufreq_table
 
-opp_find_freq_exact is meant to be used to find the opp pointer which can then
-be used for opp_enable/disable functions to make an opp available as required.
+dev_pm_opp_find_freq_exact is meant to be used to find the opp pointer which can then
+be used for dev_pm_opp_enable/disable functions to make an opp available as required.
 
 WARNING: Users of OPP library should refresh their availability count using
-get_opp_count if opp_enable/disable functions are invoked for a device, the
+get_opp_count if dev_pm_opp_enable/disable functions are invoked for a device, the
 exact mechanism to trigger these or the notification mechanism to other
 dependent subsystems such as cpufreq are left to the discretion of the SoC
 specific framework which uses the OPP library. Similar care needs to be taken
@@ -96,24 +96,24 @@ using RCU read locks. The opp_find_freq_{exact,ceil,floor},
 opp_get_{voltage, freq, opp_count} fall into this category.
 
 opp_{add,enable,disable} are updaters which use mutex and implement it's own
-RCU locking mechanisms. opp_init_cpufreq_table acts as an updater and uses
+RCU locking mechanisms. dev_pm_opp_init_cpufreq_table acts as an updater and uses
 mutex to implment RCU updater strategy. These functions should *NOT* be called
 under RCU locks and other contexts that prevent blocking functions in RCU or
 mutex operations from working.
 
 2. Initial OPP List Registration
 ================================
-The SoC implementation calls opp_add function iteratively to add OPPs per
+The SoC implementation calls dev_pm_opp_add function iteratively to add OPPs per
 device. It is expected that the SoC framework will register the OPP entries
 optimally- typical numbers range to be less than 5. The list generated by
 registering the OPPs is maintained by OPP library throughout the device
 operation. The SoC framework can subsequently control the availability of the
-OPPs dynamically using the opp_enable / disable functions.
+OPPs dynamically using the dev_pm_opp_enable / disable functions.
 
-opp_add - Add a new OPP for a specific domain represented by the device pointer.
+dev_pm_opp_add - Add a new OPP for a specific domain represented by the device pointer.
 	The OPP is defined using the frequency and voltage. Once added, the OPP
 	is assumed to be available and control of it's availability can be done
-	with the opp_enable/disable functions. OPP library internally stores
+	with the dev_pm_opp_enable/disable functions. OPP library internally stores
 	and manages this information in the opp struct. This function may be
 	used by SoC framework to define a optimal list as per the demands of
 	SoC usage environment.
@@ -124,7 +124,7 @@ opp_add - Add a new OPP for a specific domain represented by the device pointer.
 	 soc_pm_init()
 	 {
 		/* Do things */
-		r = opp_add(mpu_dev, 1000000, 900000);
+		r = dev_pm_opp_add(mpu_dev, 1000000, 900000);
 		if (!r) {
 			pr_err("%s: unable to register mpu opp(%d)\n", r);
 			goto no_cpufreq;
@@ -143,44 +143,44 @@ functions return the matching pointer representing the opp if a match is
 found, else returns error. These errors are expected to be handled by standard
 error checks such as IS_ERR() and appropriate actions taken by the caller.
 
-opp_find_freq_exact - Search for an OPP based on an *exact* frequency and
+dev_pm_opp_find_freq_exact - Search for an OPP based on an *exact* frequency and
 	availability. This function is especially useful to enable an OPP which
 	is not available by default.
 	Example: In a case when SoC framework detects a situation where a
 	higher frequency could be made available, it can use this function to
-	find the OPP prior to call the opp_enable to actually make it available.
+	find the OPP prior to call the dev_pm_opp_enable to actually make it available.
 	 rcu_read_lock();
-	 opp = opp_find_freq_exact(dev, 1000000000, false);
+	 opp = dev_pm_opp_find_freq_exact(dev, 1000000000, false);
 	 rcu_read_unlock();
 	 /* dont operate on the pointer.. just do a sanity check.. */
 	 if (IS_ERR(opp)) {
 		pr_err("frequency not disabled!\n");
 		/* trigger appropriate actions.. */
 	 } else {
-		opp_enable(dev,1000000000);
+		dev_pm_opp_enable(dev,1000000000);
 	 }
 
 	NOTE: This is the only search function that operates on OPPs which are
 	not available.
 
-opp_find_freq_floor - Search for an available OPP which is *at most* the
+dev_pm_opp_find_freq_floor - Search for an available OPP which is *at most* the
 	provided frequency. This function is useful while searching for a lesser
 	match OR operating on OPP information in the order of decreasing
 	frequency.
 	Example: To find the highest opp for a device:
 	 freq = ULONG_MAX;
 	 rcu_read_lock();
-	 opp_find_freq_floor(dev, &freq);
+	 dev_pm_opp_find_freq_floor(dev, &freq);
 	 rcu_read_unlock();
 
-opp_find_freq_ceil - Search for an available OPP which is *at least* the
+dev_pm_opp_find_freq_ceil - Search for an available OPP which is *at least* the
 	provided frequency. This function is useful while searching for a
 	higher match OR operating on OPP information in the order of increasing
 	frequency.
 	Example 1: To find the lowest opp for a device:
 	 freq = 0;
 	 rcu_read_lock();
-	 opp_find_freq_ceil(dev, &freq);
+	 dev_pm_opp_find_freq_ceil(dev, &freq);
 	 rcu_read_unlock();
 	Example 2: A simplified implementation of a SoC cpufreq_driver->target:
 	 soc_cpufreq_target(..)
@@ -188,7 +188,7 @@ opp_find_freq_ceil - Search for an available OPP which is *at least* the
 		/* Do stuff like policy checks etc. */
 		/* Find the best frequency match for the req */
 		rcu_read_lock();
-		opp = opp_find_freq_ceil(dev, &freq);
+		opp = dev_pm_opp_find_freq_ceil(dev, &freq);
 		rcu_read_unlock();
 		if (!IS_ERR(opp))
 			soc_switch_to_freq_voltage(freq);
@@ -208,34 +208,34 @@ as thermal considerations (e.g. don't use OPPx until the temperature drops).
 
 WARNING: Do not use these functions in interrupt context.
 
-opp_enable - Make a OPP available for operation.
+dev_pm_opp_enable - Make a OPP available for operation.
 	Example: Lets say that 1GHz OPP is to be made available only if the
 	SoC temperature is lower than a certain threshold. The SoC framework
 	implementation might choose to do something as follows:
 	 if (cur_temp < temp_low_thresh) {
 		/* Enable 1GHz if it was disabled */
 		rcu_read_lock();
-		opp = opp_find_freq_exact(dev, 1000000000, false);
+		opp = dev_pm_opp_find_freq_exact(dev, 1000000000, false);
 		rcu_read_unlock();
 		/* just error check */
 		if (!IS_ERR(opp))
-			ret = opp_enable(dev, 1000000000);
+			ret = dev_pm_opp_enable(dev, 1000000000);
 		else
 			goto try_something_else;
 	 }
 
-opp_disable - Make an OPP to be not available for operation
+dev_pm_opp_disable - Make an OPP to be not available for operation
 	Example: Lets say that 1GHz OPP is to be disabled if the temperature
 	exceeds a threshold value. The SoC framework implementation might
 	choose to do something as follows:
 	 if (cur_temp > temp_high_thresh) {
 		/* Disable 1GHz if it was enabled */
 		rcu_read_lock();
-		opp = opp_find_freq_exact(dev, 1000000000, true);
+		opp = dev_pm_opp_find_freq_exact(dev, 1000000000, true);
 		rcu_read_unlock();
 		/* just error check */
 		if (!IS_ERR(opp))
-			ret = opp_disable(dev, 1000000000);
+			ret = dev_pm_opp_disable(dev, 1000000000);
 		else
 			goto try_something_else;
 	 }
@@ -247,7 +247,7 @@ information from the OPP structure is necessary. Once an OPP pointer is
 retrieved using the search functions, the following functions can be used by SoC
 framework to retrieve the information represented inside the OPP layer.
 
-opp_get_voltage - Retrieve the voltage represented by the opp pointer.
+dev_pm_opp_get_voltage - Retrieve the voltage represented by the opp pointer.
 	Example: At a cpufreq transition to a different frequency, SoC
 	framework requires to set the voltage represented by the OPP using
 	the regulator framework to the Power Management chip providing the
@@ -256,15 +256,15 @@ opp_get_voltage - Retrieve the voltage represented by the opp pointer.
 	 {
 		/* do things */
 		rcu_read_lock();
-		opp = opp_find_freq_ceil(dev, &freq);
-		v = opp_get_voltage(opp);
+		opp = dev_pm_opp_find_freq_ceil(dev, &freq);
+		v = dev_pm_opp_get_voltage(opp);
 		rcu_read_unlock();
 		if (v)
 			regulator_set_voltage(.., v);
 		/* do other things */
 	 }
 
-opp_get_freq - Retrieve the freq represented by the opp pointer.
+dev_pm_opp_get_freq - Retrieve the freq represented by the opp pointer.
 	Example: Lets say the SoC framework uses a couple of helper functions
 	we could pass opp pointers instead of doing additional parameters to
 	handle quiet a bit of data parameters.
@@ -273,8 +273,8 @@ opp_get_freq - Retrieve the freq represented by the opp pointer.
 		/* do things.. */
 		 max_freq = ULONG_MAX;
 		 rcu_read_lock();
-		 max_opp = opp_find_freq_floor(dev,&max_freq);
-		 requested_opp = opp_find_freq_ceil(dev,&freq);
+		 max_opp = dev_pm_opp_find_freq_floor(dev,&max_freq);
+		 requested_opp = dev_pm_opp_find_freq_ceil(dev,&freq);
 		 if (!IS_ERR(max_opp) && !IS_ERR(requested_opp))
 			r = soc_test_validity(max_opp, requested_opp);
 		 rcu_read_unlock();
@@ -282,25 +282,25 @@ opp_get_freq - Retrieve the freq represented by the opp pointer.
 	 }
 	 soc_test_validity(..)
 	 {
-		 if(opp_get_voltage(max_opp) < opp_get_voltage(requested_opp))
+		 if(dev_pm_opp_get_voltage(max_opp) < dev_pm_opp_get_voltage(requested_opp))
 			 return -EINVAL;
-		 if(opp_get_freq(max_opp) < opp_get_freq(requested_opp))
+		 if(dev_pm_opp_get_freq(max_opp) < dev_pm_opp_get_freq(requested_opp))
 			 return -EINVAL;
 		/* do things.. */
 	 }
 
-opp_get_opp_count - Retrieve the number of available opps for a device
+dev_pm_opp_get_opp_count - Retrieve the number of available opps for a device
 	Example: Lets say a co-processor in the SoC needs to know the available
 	frequencies in a table, the main processor can notify as following:
 	 soc_notify_coproc_available_frequencies()
 	 {
 		/* Do things */
 		rcu_read_lock();
-		num_available = opp_get_opp_count(dev);
+		num_available = dev_pm_opp_get_opp_count(dev);
 		speeds = kzalloc(sizeof(u32) * num_available, GFP_KERNEL);
 		/* populate the table in increasing order */
 		freq = 0;
-		while (!IS_ERR(opp = opp_find_freq_ceil(dev, &freq))) {
+		while (!IS_ERR(opp = dev_pm_opp_find_freq_ceil(dev, &freq))) {
 			speeds[i] = freq;
 			freq++;
 			i++;
@@ -313,7 +313,7 @@ opp_get_opp_count - Retrieve the number of available opps for a device
 
 6. Cpufreq Table Generation
 ===========================
-opp_init_cpufreq_table - cpufreq framework typically is initialized with
+dev_pm_opp_init_cpufreq_table - cpufreq framework typically is initialized with
 	cpufreq_frequency_table_cpuinfo which is provided with the list of
 	frequencies that are available for operation. This function provides
 	a ready to use conversion routine to translate the OPP layer's internal
@@ -326,7 +326,7 @@ opp_init_cpufreq_table - cpufreq framework typically is initialized with
 	 soc_pm_init()
 	 {
 		/* Do things */
-		r = opp_init_cpufreq_table(dev, &freq_table);
+		r = dev_pm_opp_init_cpufreq_table(dev, &freq_table);
 		if (!r)
 			cpufreq_frequency_table_cpuinfo(policy, freq_table);
 		/* Do other things */
@@ -336,7 +336,7 @@ opp_init_cpufreq_table - cpufreq framework typically is initialized with
 	addition to CONFIG_PM as power management feature is required to
 	dynamically scale voltage and frequency in a system.
 
-opp_free_cpufreq_table - Free up the table allocated by opp_init_cpufreq_table
+dev_pm_opp_free_cpufreq_table - Free up the table allocated by dev_pm_opp_init_cpufreq_table
 
 7. Data Structures
 ==================
@@ -366,8 +366,8 @@ struct opp - The internal data structure of OPP library which is used to
 	identifier for OPP in the interactions with OPP layer.
 
 	WARNING: The struct opp pointer should not be parsed or modified by the
-	users. The defaults of for an instance is populated by opp_add, but the
-	availability of the OPP can be modified by opp_enable/disable functions.
+	users. The defaults of for an instance is populated by dev_pm_opp_add, but the
+	availability of the OPP can be modified by dev_pm_opp_enable/disable functions.
 
 struct device - This is used to identify a domain to the OPP layer. The
 	nature of the device and it's implementation is left to the user of
@@ -377,19 +377,19 @@ Overall, in a simplistic view, the data structure operations is represented as
 following:
 
 Initialization / modification:
-            +-----+        /- opp_enable
-opp_add --> | opp | <-------
-  |         +-----+        \- opp_disable
+            +-----+        /- dev_pm_opp_enable
+dev_pm_opp_add --> | opp | <-------
+  |         +-----+        \- dev_pm_opp_disable
   \-------> domain_info(device)
 
 Search functions:
-             /-- opp_find_freq_ceil  ---\   +-----+
-domain_info<---- opp_find_freq_exact -----> | opp |
-             \-- opp_find_freq_floor ---/   +-----+
+             /-- dev_pm_opp_find_freq_ceil  ---\   +-----+
+domain_info<---- dev_pm_opp_find_freq_exact -----> | opp |
+             \-- dev_pm_opp_find_freq_floor ---/   +-----+
 
 Retrieval functions:
-+-----+     /- opp_get_voltage
++-----+     /- dev_pm_opp_get_voltage
 | opp | <---
-+-----+     \- opp_get_freq
++-----+     \- dev_pm_opp_get_freq
 
-domain_info <- opp_get_opp_count
+domain_info <- dev_pm_opp_get_opp_count
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c
index 90372a21087f..d7ecc90e6bba 100644
--- a/arch/arm/mach-imx/mach-imx6q.c
+++ b/arch/arm/mach-imx/mach-imx6q.c
@@ -226,7 +226,7 @@ static void __init imx6q_opp_check_1p2ghz(struct device *cpu_dev)
 	val = readl_relaxed(base + OCOTP_CFG3);
 	val >>= OCOTP_CFG3_SPEED_SHIFT;
 	if ((val & 0x3) != OCOTP_CFG3_SPEED_1P2GHZ)
-		if (opp_disable(cpu_dev, 1200000000))
+		if (dev_pm_opp_disable(cpu_dev, 1200000000))
 			pr_warn("failed to disable 1.2 GHz OPP\n");
 
 put_node:
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index f26918467efc..33969e5a149f 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -522,11 +522,11 @@ static int __init beagle_opp_init(void)
 			return -ENODEV;
 		}
 		/* Enable MPU 1GHz and lower opps */
-		r = opp_enable(mpu_dev, 800000000);
+		r = dev_pm_opp_enable(mpu_dev, 800000000);
 		/* TODO: MPU 1GHz needs SR and ABB */
 
 		/* Enable IVA 800MHz and lower opps */
-		r |= opp_enable(iva_dev, 660000000);
+		r |= dev_pm_opp_enable(iva_dev, 660000000);
 		/* TODO: DSP 800MHz needs SR and ABB */
 		if (r) {
 			pr_err("%s: failed to enable higher opp %d\n",
@@ -535,8 +535,8 @@ static int __init beagle_opp_init(void)
 			 * Cleanup - disable the higher freqs - we dont care
 			 * about the results
 			 */
-			opp_disable(mpu_dev, 800000000);
-			opp_disable(iva_dev, 660000000);
+			dev_pm_opp_disable(mpu_dev, 800000000);
+			dev_pm_opp_disable(iva_dev, 660000000);
 		}
 	}
 	return 0;
diff --git a/arch/arm/mach-omap2/opp.c b/arch/arm/mach-omap2/opp.c
index bd41d59a7cab..7b04637b13cb 100644
--- a/arch/arm/mach-omap2/opp.c
+++ b/arch/arm/mach-omap2/opp.c
@@ -81,14 +81,14 @@ int __init omap_init_opp_table(struct omap_opp_def *opp_def,
 			dev = &oh->od->pdev->dev;
 		}
 
-		r = opp_add(dev, opp_def->freq, opp_def->u_volt);
+		r = dev_pm_opp_add(dev, opp_def->freq, opp_def->u_volt);
 		if (r) {
 			dev_err(dev, "%s: add OPP %ld failed for %s [%d] result=%d\n",
 				__func__, opp_def->freq,
 				opp_def->hwmod_name, i, r);
 		} else {
 			if (!opp_def->default_available)
-				r = opp_disable(dev, opp_def->freq);
+				r = dev_pm_opp_disable(dev, opp_def->freq);
 			if (r)
 				dev_err(dev, "%s: disable %ld failed for %s [%d] result=%d\n",
 					__func__, opp_def->freq,
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index e742118fcfd2..937744c3679d 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -172,7 +172,7 @@ static int __init omap2_set_init_voltage(char *vdd_name, char *clk_name,
 	clk_put(clk);
 
 	rcu_read_lock();
-	opp = opp_find_freq_ceil(dev, &freq);
+	opp = dev_pm_opp_find_freq_ceil(dev, &freq);
 	if (IS_ERR(opp)) {
 		rcu_read_unlock();
 		pr_err("%s: unable to find boot up OPP for vdd_%s\n",
@@ -180,7 +180,7 @@ static int __init omap2_set_init_voltage(char *vdd_name, char *clk_name,
 		goto exit;
 	}
 
-	bootup_volt = opp_get_voltage(opp);
+	bootup_volt = dev_pm_opp_get_voltage(opp);
 	rcu_read_unlock();
 	if (!bootup_volt) {
 		pr_err("%s: unable to find voltage corresponding to the bootup OPP for vdd_%s\n",
diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c
index ef89897c6043..00c6a449cdeb 100644
--- a/drivers/base/power/opp.c
+++ b/drivers/base/power/opp.c
@@ -136,7 +136,7 @@ static struct device_opp *find_device_opp(struct device *dev)
 }
 
 /**
- * opp_get_voltage() - Gets the voltage corresponding to an available opp
+ * dev_pm_opp_get_voltage() - Gets the voltage corresponding to an available opp
  * @opp:	opp for which voltage has to be returned for
  *
  * Return voltage in micro volt corresponding to the opp, else
@@ -150,7 +150,7 @@ static struct device_opp *find_device_opp(struct device *dev)
  * prior to unlocking with rcu_read_unlock() to maintain the integrity of the
  * pointer.
  */
-unsigned long opp_get_voltage(struct opp *opp)
+unsigned long dev_pm_opp_get_voltage(struct opp *opp)
 {
 	struct opp *tmp_opp;
 	unsigned long v = 0;
@@ -163,10 +163,10 @@ unsigned long opp_get_voltage(struct opp *opp)
 
 	return v;
 }
-EXPORT_SYMBOL_GPL(opp_get_voltage);
+EXPORT_SYMBOL_GPL(dev_pm_opp_get_voltage);
 
 /**
- * opp_get_freq() - Gets the frequency corresponding to an available opp
+ * dev_pm_opp_get_freq() - Gets the frequency corresponding to an available opp
  * @opp:	opp for which frequency has to be returned for
  *
  * Return frequency in hertz corresponding to the opp, else
@@ -180,7 +180,7 @@ EXPORT_SYMBOL_GPL(opp_get_voltage);
  * prior to unlocking with rcu_read_unlock() to maintain the integrity of the
  * pointer.
  */
-unsigned long opp_get_freq(struct opp *opp)
+unsigned long dev_pm_opp_get_freq(struct opp *opp)
 {
 	struct opp *tmp_opp;
 	unsigned long f = 0;
@@ -193,10 +193,10 @@ unsigned long opp_get_freq(struct opp *opp)
 
 	return f;
 }
-EXPORT_SYMBOL_GPL(opp_get_freq);
+EXPORT_SYMBOL_GPL(dev_pm_opp_get_freq);
 
 /**
- * opp_get_opp_count() - Get number of opps available in the opp list
+ * dev_pm_opp_get_opp_count() - Get number of opps available in the opp list
  * @dev:	device for which we do this operation
  *
  * This function returns the number of available opps if there are any,
@@ -206,7 +206,7 @@ EXPORT_SYMBOL_GPL(opp_get_freq);
  * internally references two RCU protected structures: device_opp and opp which
  * are safe as long as we are under a common RCU locked section.
  */
-int opp_get_opp_count(struct device *dev)
+int dev_pm_opp_get_opp_count(struct device *dev)
 {
 	struct device_opp *dev_opp;
 	struct opp *temp_opp;
@@ -226,10 +226,10 @@ int opp_get_opp_count(struct device *dev)
 
 	return count;
 }
-EXPORT_SYMBOL_GPL(opp_get_opp_count);
+EXPORT_SYMBOL_GPL(dev_pm_opp_get_opp_count);
 
 /**
- * opp_find_freq_exact() - search for an exact frequency
+ * dev_pm_opp_find_freq_exact() - search for an exact frequency
  * @dev:		device for which we do this operation
  * @freq:		frequency to search for
  * @available:		true/false - match for available opp
@@ -254,7 +254,7 @@ EXPORT_SYMBOL_GPL(opp_get_opp_count);
  * under the locked area. The pointer returned must be used prior to unlocking
  * with rcu_read_unlock() to maintain the integrity of the pointer.
  */
-struct opp *opp_find_freq_exact(struct device *dev, unsigned long freq,
+struct opp *dev_pm_opp_find_freq_exact(struct device *dev, unsigned long freq,
 				bool available)
 {
 	struct device_opp *dev_opp;
@@ -277,10 +277,10 @@ struct opp *opp_find_freq_exact(struct device *dev, unsigned long freq,
 
 	return opp;
 }
-EXPORT_SYMBOL_GPL(opp_find_freq_exact);
+EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_exact);
 
 /**
- * opp_find_freq_ceil() - Search for an rounded ceil freq
+ * dev_pm_opp_find_freq_ceil() - Search for an rounded ceil freq
  * @dev:	device for which we do this operation
  * @freq:	Start frequency
  *
@@ -300,7 +300,7 @@ EXPORT_SYMBOL_GPL(opp_find_freq_exact);
  * under the locked area. The pointer returned must be used prior to unlocking
  * with rcu_read_unlock() to maintain the integrity of the pointer.
  */
-struct opp *opp_find_freq_ceil(struct device *dev, unsigned long *freq)
+struct opp *dev_pm_opp_find_freq_ceil(struct device *dev, unsigned long *freq)
 {
 	struct device_opp *dev_opp;
 	struct opp *temp_opp, *opp = ERR_PTR(-ERANGE);
@@ -324,10 +324,10 @@ struct opp *opp_find_freq_ceil(struct device *dev, unsigned long *freq)
 
 	return opp;
 }
-EXPORT_SYMBOL_GPL(opp_find_freq_ceil);
+EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_ceil);
 
 /**
- * opp_find_freq_floor() - Search for a rounded floor freq
+ * dev_pm_opp_find_freq_floor() - Search for a rounded floor freq
  * @dev:	device for which we do this operation
  * @freq:	Start frequency
  *
@@ -347,7 +347,7 @@ EXPORT_SYMBOL_GPL(opp_find_freq_ceil);
  * under the locked area. The pointer returned must be used prior to unlocking
  * with rcu_read_unlock() to maintain the integrity of the pointer.
  */
-struct opp *opp_find_freq_floor(struct device *dev, unsigned long *freq)
+struct opp *dev_pm_opp_find_freq_floor(struct device *dev, unsigned long *freq)
 {
 	struct device_opp *dev_opp;
 	struct opp *temp_opp, *opp = ERR_PTR(-ERANGE);
@@ -375,17 +375,17 @@ struct opp *opp_find_freq_floor(struct device *dev, unsigned long *freq)
 
 	return opp;
 }
-EXPORT_SYMBOL_GPL(opp_find_freq_floor);
+EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_floor);
 
 /**
- * opp_add()  - Add an OPP table from a table definitions
+ * dev_pm_opp_add()  - Add an OPP table from a table definitions
  * @dev:	device for which we do this operation
  * @freq:	Frequency in Hz for this OPP
  * @u_volt:	Voltage in uVolts for this OPP
  *
  * This function adds an opp definition to the opp list and returns status.
  * The opp is made available by default and it can be controlled using
- * opp_enable/disable functions.
+ * dev_pm_opp_enable/disable functions.
  *
  * Locking: The internal device_opp and opp structures are RCU protected.
  * Hence this function internally uses RCU updater strategy with mutex locks
@@ -393,7 +393,7 @@ EXPORT_SYMBOL_GPL(opp_find_freq_floor);
  * that this function is *NOT* called under RCU protection or in contexts where
  * mutex cannot be locked.
  */
-int opp_add(struct device *dev, unsigned long freq, unsigned long u_volt)
+int dev_pm_opp_add(struct device *dev, unsigned long freq, unsigned long u_volt)
 {
 	struct device_opp *dev_opp = NULL;
 	struct opp *opp, *new_opp;
@@ -460,7 +460,7 @@ int opp_add(struct device *dev, unsigned long freq, unsigned long u_volt)
 	srcu_notifier_call_chain(&dev_opp->head, OPP_EVENT_ADD, new_opp);
 	return 0;
 }
-EXPORT_SYMBOL_GPL(opp_add);
+EXPORT_SYMBOL_GPL(dev_pm_opp_add);
 
 /**
  * opp_set_availability() - helper to set the availability of an opp
@@ -552,13 +552,13 @@ unlock:
 }
 
 /**
- * opp_enable() - Enable a specific OPP
+ * dev_pm_opp_enable() - Enable a specific OPP
  * @dev:	device for which we do this operation
  * @freq:	OPP frequency to enable
  *
  * Enables a provided opp. If the operation is valid, this returns 0, else the
  * corresponding error value. It is meant to be used for users an OPP available
- * after being temporarily made unavailable with opp_disable.
+ * after being temporarily made unavailable with dev_pm_opp_disable.
  *
  * Locking: The internal device_opp and opp structures are RCU protected.
  * Hence this function indirectly uses RCU and mutex locks to keep the
@@ -566,21 +566,21 @@ unlock:
  * this function is *NOT* called under RCU protection or in contexts where
  * mutex locking or synchronize_rcu() blocking calls cannot be used.
  */
-int opp_enable(struct device *dev, unsigned long freq)
+int dev_pm_opp_enable(struct device *dev, unsigned long freq)
 {
 	return opp_set_availability(dev, freq, true);
 }
-EXPORT_SYMBOL_GPL(opp_enable);
+EXPORT_SYMBOL_GPL(dev_pm_opp_enable);
 
 /**
- * opp_disable() - Disable a specific OPP
+ * dev_pm_opp_disable() - Disable a specific OPP
  * @dev:	device for which we do this operation
  * @freq:	OPP frequency to disable
  *
  * Disables a provided opp. If the operation is valid, this returns
  * 0, else the corresponding error value. It is meant to be a temporary
  * control by users to make this OPP not available until the circumstances are
- * right to make it available again (with a call to opp_enable).
+ * right to make it available again (with a call to dev_pm_opp_enable).
  *
  * Locking: The internal device_opp and opp structures are RCU protected.
  * Hence this function indirectly uses RCU and mutex locks to keep the
@@ -588,15 +588,15 @@ EXPORT_SYMBOL_GPL(opp_enable);
  * this function is *NOT* called under RCU protection or in contexts where
  * mutex locking or synchronize_rcu() blocking calls cannot be used.
  */
-int opp_disable(struct device *dev, unsigned long freq)
+int dev_pm_opp_disable(struct device *dev, unsigned long freq)
 {
 	return opp_set_availability(dev, freq, false);
 }
-EXPORT_SYMBOL_GPL(opp_disable);
+EXPORT_SYMBOL_GPL(dev_pm_opp_disable);
 
 #ifdef CONFIG_CPU_FREQ
 /**
- * opp_init_cpufreq_table() - create a cpufreq table for a device
+ * dev_pm_opp_init_cpufreq_table() - create a cpufreq table for a device
  * @dev:	device for which we do this operation
  * @table:	Cpufreq table returned back to caller
  *
@@ -619,7 +619,7 @@ EXPORT_SYMBOL_GPL(opp_disable);
  * Callers should ensure that this function is *NOT* called under RCU protection
  * or in contexts where mutex locking cannot be used.
  */
-int opp_init_cpufreq_table(struct device *dev,
+int dev_pm_opp_init_cpufreq_table(struct device *dev,
 			    struct cpufreq_frequency_table **table)
 {
 	struct device_opp *dev_opp;
@@ -639,7 +639,7 @@ int opp_init_cpufreq_table(struct device *dev,
 	}
 
 	freq_table = kzalloc(sizeof(struct cpufreq_frequency_table) *
-			     (opp_get_opp_count(dev) + 1), GFP_KERNEL);
+			     (dev_pm_opp_get_opp_count(dev) + 1), GFP_KERNEL);
 	if (!freq_table) {
 		mutex_unlock(&dev_opp_list_lock);
 		dev_warn(dev, "%s: Unable to allocate frequency table\n",
@@ -663,16 +663,16 @@ int opp_init_cpufreq_table(struct device *dev,
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(opp_init_cpufreq_table);
+EXPORT_SYMBOL_GPL(dev_pm_opp_init_cpufreq_table);
 
 /**
- * opp_free_cpufreq_table() - free the cpufreq table
+ * dev_pm_opp_free_cpufreq_table() - free the cpufreq table
  * @dev:	device for which we do this operation
  * @table:	table to free
  *
- * Free up the table allocated by opp_init_cpufreq_table
+ * Free up the table allocated by dev_pm_opp_init_cpufreq_table
  */
-void opp_free_cpufreq_table(struct device *dev,
+void dev_pm_opp_free_cpufreq_table(struct device *dev,
 				struct cpufreq_frequency_table **table)
 {
 	if (!table)
@@ -681,14 +681,14 @@ void opp_free_cpufreq_table(struct device *dev,
 	kfree(*table);
 	*table = NULL;
 }
-EXPORT_SYMBOL_GPL(opp_free_cpufreq_table);
+EXPORT_SYMBOL_GPL(dev_pm_opp_free_cpufreq_table);
 #endif		/* CONFIG_CPU_FREQ */
 
 /**
- * opp_get_notifier() - find notifier_head of the device with opp
+ * dev_pm_opp_get_notifier() - find notifier_head of the device with opp
  * @dev:	device pointer used to lookup device OPPs.
  */
-struct srcu_notifier_head *opp_get_notifier(struct device *dev)
+struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev)
 {
 	struct device_opp *dev_opp = find_device_opp(dev);
 
@@ -732,7 +732,7 @@ int of_init_opp_table(struct device *dev)
 		unsigned long freq = be32_to_cpup(val++) * 1000;
 		unsigned long volt = be32_to_cpup(val++);
 
-		if (opp_add(dev, freq, volt)) {
+		if (dev_pm_opp_add(dev, freq, volt)) {
 			dev_warn(dev, "%s: Failed to add OPP %ld\n",
 				 __func__, freq);
 			continue;
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index 3549f0784af1..9e82a9d5df77 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -98,7 +98,7 @@ static void put_cluster_clk_and_freq_table(struct device *cpu_dev)
 
 	if (!atomic_dec_return(&cluster_usage[cluster])) {
 		clk_put(clk[cluster]);
-		opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]);
+		dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]);
 		dev_dbg(cpu_dev, "%s: cluster: %d\n", __func__, cluster);
 	}
 }
@@ -119,7 +119,7 @@ static int get_cluster_clk_and_freq_table(struct device *cpu_dev)
 		goto atomic_dec;
 	}
 
-	ret = opp_init_cpufreq_table(cpu_dev, &freq_table[cluster]);
+	ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table[cluster]);
 	if (ret) {
 		dev_err(cpu_dev, "%s: failed to init cpufreq table, cpu: %d, err: %d\n",
 				__func__, cpu_dev->id, ret);
@@ -138,7 +138,7 @@ static int get_cluster_clk_and_freq_table(struct device *cpu_dev)
 	dev_err(cpu_dev, "%s: Failed to get clk for cpu: %d, cluster: %d\n",
 			__func__, cpu_dev->id, cluster);
 	ret = PTR_ERR(clk[cluster]);
-	opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]);
+	dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]);
 
 atomic_dec:
 	atomic_dec(&cluster_usage[cluster]);
diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
index c522a95c0e16..af951a9cea78 100644
--- a/drivers/cpufreq/cpufreq-cpu0.c
+++ b/drivers/cpufreq/cpufreq-cpu0.c
@@ -72,7 +72,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy,
 
 	if (!IS_ERR(cpu_reg)) {
 		rcu_read_lock();
-		opp = opp_find_freq_ceil(cpu_dev, &freq_Hz);
+		opp = dev_pm_opp_find_freq_ceil(cpu_dev, &freq_Hz);
 		if (IS_ERR(opp)) {
 			rcu_read_unlock();
 			pr_err("failed to find OPP for %ld\n", freq_Hz);
@@ -80,7 +80,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy,
 			ret = PTR_ERR(opp);
 			goto post_notify;
 		}
-		volt = opp_get_voltage(opp);
+		volt = dev_pm_opp_get_voltage(opp);
 		rcu_read_unlock();
 		tol = volt * voltage_tolerance / 100;
 		volt_old = regulator_get_voltage(cpu_reg);
@@ -218,7 +218,7 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev)
 		goto out_put_node;
 	}
 
-	ret = opp_init_cpufreq_table(cpu_dev, &freq_table);
+	ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table);
 	if (ret) {
 		pr_err("failed to init cpufreq table: %d\n", ret);
 		goto out_put_node;
@@ -242,12 +242,12 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev)
 		for (i = 0; freq_table[i].frequency != CPUFREQ_TABLE_END; i++)
 			;
 		rcu_read_lock();
-		opp = opp_find_freq_exact(cpu_dev,
+		opp = dev_pm_opp_find_freq_exact(cpu_dev,
 				freq_table[0].frequency * 1000, true);
-		min_uV = opp_get_voltage(opp);
-		opp = opp_find_freq_exact(cpu_dev,
+		min_uV = dev_pm_opp_get_voltage(opp);
+		opp = dev_pm_opp_find_freq_exact(cpu_dev,
 				freq_table[i-1].frequency * 1000, true);
-		max_uV = opp_get_voltage(opp);
+		max_uV = dev_pm_opp_get_voltage(opp);
 		rcu_read_unlock();
 		ret = regulator_set_voltage_time(cpu_reg, min_uV, max_uV);
 		if (ret > 0)
@@ -264,7 +264,7 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev)
 	return 0;
 
 out_free_table:
-	opp_free_cpufreq_table(cpu_dev, &freq_table);
+	dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table);
 out_put_node:
 	of_node_put(np);
 	return ret;
@@ -273,7 +273,7 @@ out_put_node:
 static int cpu0_cpufreq_remove(struct platform_device *pdev)
 {
 	cpufreq_unregister_driver(&cpu0_cpufreq_driver);
-	opp_free_cpufreq_table(cpu_dev, &freq_table);
+	dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table);
 
 	return 0;
 }
diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c
index be5380ecdcd4..444eca74d3c2 100644
--- a/drivers/cpufreq/exynos5440-cpufreq.c
+++ b/drivers/cpufreq/exynos5440-cpufreq.c
@@ -123,7 +123,7 @@ static int init_div_table(void)
 	rcu_read_lock();
 	for (i = 0; freq_tbl[i].frequency != CPUFREQ_TABLE_END; i++) {
 
-		opp = opp_find_freq_exact(dvfs_info->dev,
+		opp = dev_pm_opp_find_freq_exact(dvfs_info->dev,
 					freq_tbl[i].frequency * 1000, true);
 		if (IS_ERR(opp)) {
 			rcu_read_unlock();
@@ -142,7 +142,7 @@ static int init_div_table(void)
 					<< P0_7_CSCLKDEV_SHIFT;
 
 		/* Calculate EMA */
-		volt_id = opp_get_voltage(opp);
+		volt_id = dev_pm_opp_get_voltage(opp);
 		volt_id = (MAX_VOLTAGE - volt_id) / VOLTAGE_STEP;
 		if (volt_id < PMIC_HIGH_VOLT) {
 			ema_div = (CPUEMA_HIGH << P0_7_CPUEMA_SHIFT) |
@@ -399,13 +399,14 @@ static int exynos_cpufreq_probe(struct platform_device *pdev)
 		goto err_put_node;
 	}
 
-	ret = opp_init_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table);
+	ret = dev_pm_opp_init_cpufreq_table(dvfs_info->dev,
+					    &dvfs_info->freq_table);
 	if (ret) {
 		dev_err(dvfs_info->dev,
 			"failed to init cpufreq table: %d\n", ret);
 		goto err_put_node;
 	}
-	dvfs_info->freq_count = opp_get_opp_count(dvfs_info->dev);
+	dvfs_info->freq_count = dev_pm_opp_get_opp_count(dvfs_info->dev);
 	exynos_sort_descend_freq_table();
 
 	if (of_property_read_u32(np, "clock-latency", &dvfs_info->latency))
@@ -454,7 +455,7 @@ static int exynos_cpufreq_probe(struct platform_device *pdev)
 	return 0;
 
 err_free_table:
-	opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table);
+	dev_pm_opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table);
 err_put_node:
 	of_node_put(np);
 	dev_err(&pdev->dev, "%s: failed initialization\n", __func__);
@@ -464,7 +465,7 @@ err_put_node:
 static int exynos_cpufreq_remove(struct platform_device *pdev)
 {
 	cpufreq_unregister_driver(&exynos_driver);
-	opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table);
+	dev_pm_opp_free_cpufreq_table(dvfs_info->dev, &dvfs_info->freq_table);
 	return 0;
 }
 
diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index c3fd2a101ca0..b360549e7715 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -70,14 +70,14 @@ static int imx6q_set_target(struct cpufreq_policy *policy,
 		return 0;
 
 	rcu_read_lock();
-	opp = opp_find_freq_ceil(cpu_dev, &freq_hz);
+	opp = dev_pm_opp_find_freq_ceil(cpu_dev, &freq_hz);
 	if (IS_ERR(opp)) {
 		rcu_read_unlock();
 		dev_err(cpu_dev, "failed to find OPP for %ld\n", freq_hz);
 		return PTR_ERR(opp);
 	}
 
-	volt = opp_get_voltage(opp);
+	volt = dev_pm_opp_get_voltage(opp);
 	rcu_read_unlock();
 	volt_old = regulator_get_voltage(arm_reg);
 
@@ -237,14 +237,14 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev)
 	}
 
 	/* We expect an OPP table supplied by platform */
-	num = opp_get_opp_count(cpu_dev);
+	num = dev_pm_opp_get_opp_count(cpu_dev);
 	if (num < 0) {
 		ret = num;
 		dev_err(cpu_dev, "no OPP table is found: %d\n", ret);
 		goto put_node;
 	}
 
-	ret = opp_init_cpufreq_table(cpu_dev, &freq_table);
+	ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table);
 	if (ret) {
 		dev_err(cpu_dev, "failed to init cpufreq table: %d\n", ret);
 		goto put_node;
@@ -259,12 +259,12 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev)
 	 * same order.
 	 */
 	rcu_read_lock();
-	opp = opp_find_freq_exact(cpu_dev,
+	opp = dev_pm_opp_find_freq_exact(cpu_dev,
 				  freq_table[0].frequency * 1000, true);
-	min_volt = opp_get_voltage(opp);
-	opp = opp_find_freq_exact(cpu_dev,
+	min_volt = dev_pm_opp_get_voltage(opp);
+	opp = dev_pm_opp_find_freq_exact(cpu_dev,
 				  freq_table[--num].frequency * 1000, true);
-	max_volt = opp_get_voltage(opp);
+	max_volt = dev_pm_opp_get_voltage(opp);
 	rcu_read_unlock();
 	ret = regulator_set_voltage_time(arm_reg, min_volt, max_volt);
 	if (ret > 0)
@@ -292,7 +292,7 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev)
 	return 0;
 
 free_freq_table:
-	opp_free_cpufreq_table(cpu_dev, &freq_table);
+	dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table);
 put_node:
 	of_node_put(np);
 	return ret;
@@ -301,7 +301,7 @@ put_node:
 static int imx6q_cpufreq_remove(struct platform_device *pdev)
 {
 	cpufreq_unregister_driver(&imx6q_cpufreq_driver);
-	opp_free_cpufreq_table(cpu_dev, &freq_table);
+	dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table);
 
 	return 0;
 }
diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index f31fcfcad514..c5e31d296607 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -105,14 +105,14 @@ static int omap_target(struct cpufreq_policy *policy,
 
 	if (mpu_reg) {
 		rcu_read_lock();
-		opp = opp_find_freq_ceil(mpu_dev, &freq);
+		opp = dev_pm_opp_find_freq_ceil(mpu_dev, &freq);
 		if (IS_ERR(opp)) {
 			rcu_read_unlock();
 			dev_err(mpu_dev, "%s: unable to find MPU OPP for %d\n",
 				__func__, freqs.new);
 			return -EINVAL;
 		}
-		volt = opp_get_voltage(opp);
+		volt = dev_pm_opp_get_voltage(opp);
 		rcu_read_unlock();
 		tol = volt * OPP_TOLERANCE / 100;
 		volt_old = regulator_get_voltage(mpu_reg);
@@ -162,7 +162,7 @@ done:
 static inline void freq_table_free(void)
 {
 	if (atomic_dec_and_test(&freq_table_users))
-		opp_free_cpufreq_table(mpu_dev, &freq_table);
+		dev_pm_opp_free_cpufreq_table(mpu_dev, &freq_table);
 }
 
 static int omap_cpu_init(struct cpufreq_policy *policy)
@@ -181,7 +181,7 @@ static int omap_cpu_init(struct cpufreq_policy *policy)
 	policy->cur = omap_getspeed(policy->cpu);
 
 	if (!freq_table)
-		result = opp_init_cpufreq_table(mpu_dev, &freq_table);
+		result = dev_pm_opp_init_cpufreq_table(mpu_dev, &freq_table);
 
 	if (result) {
 		dev_err(mpu_dev, "%s: cpu%d: failed creating freq table[%d]\n",
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index c99c00d35d34..f798edcb910d 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -908,7 +908,7 @@ static ssize_t available_frequencies_show(struct device *d,
 
 	rcu_read_lock();
 	do {
-		opp = opp_find_freq_ceil(dev, &freq);
+		opp = dev_pm_opp_find_freq_ceil(dev, &freq);
 		if (IS_ERR(opp))
 			break;
 
@@ -1036,18 +1036,18 @@ struct opp *devfreq_recommended_opp(struct device *dev, unsigned long *freq,
 
 	if (flags & DEVFREQ_FLAG_LEAST_UPPER_BOUND) {
 		/* The freq is an upper bound. opp should be lower */
-		opp = opp_find_freq_floor(dev, freq);
+		opp = dev_pm_opp_find_freq_floor(dev, freq);
 
 		/* If not available, use the closest opp */
 		if (opp == ERR_PTR(-ERANGE))
-			opp = opp_find_freq_ceil(dev, freq);
+			opp = dev_pm_opp_find_freq_ceil(dev, freq);
 	} else {
 		/* The freq is an lower bound. opp should be higher */
-		opp = opp_find_freq_ceil(dev, freq);
+		opp = dev_pm_opp_find_freq_ceil(dev, freq);
 
 		/* If not available, use the closest opp */
 		if (opp == ERR_PTR(-ERANGE))
-			opp = opp_find_freq_floor(dev, freq);
+			opp = dev_pm_opp_find_freq_floor(dev, freq);
 	}
 
 	return opp;
@@ -1066,7 +1066,7 @@ int devfreq_register_opp_notifier(struct device *dev, struct devfreq *devfreq)
 	int ret = 0;
 
 	rcu_read_lock();
-	nh = opp_get_notifier(dev);
+	nh = dev_pm_opp_get_notifier(dev);
 	if (IS_ERR(nh))
 		ret = PTR_ERR(nh);
 	rcu_read_unlock();
@@ -1092,7 +1092,7 @@ int devfreq_unregister_opp_notifier(struct device *dev, struct devfreq *devfreq)
 	int ret = 0;
 
 	rcu_read_lock();
-	nh = opp_get_notifier(dev);
+	nh = dev_pm_opp_get_notifier(dev);
 	if (IS_ERR(nh))
 		ret = PTR_ERR(nh);
 	rcu_read_unlock();
diff --git a/drivers/devfreq/exynos/exynos4_bus.c b/drivers/devfreq/exynos/exynos4_bus.c
index c5f86d8caca3..33c0e05a5ff1 100644
--- a/drivers/devfreq/exynos/exynos4_bus.c
+++ b/drivers/devfreq/exynos/exynos4_bus.c
@@ -650,8 +650,8 @@ static int exynos4_bus_target(struct device *dev, unsigned long *_freq,
 		rcu_read_unlock();
 		return PTR_ERR(opp);
 	}
-	new_oppinfo.rate = opp_get_freq(opp);
-	new_oppinfo.volt = opp_get_voltage(opp);
+	new_oppinfo.rate = dev_pm_opp_get_freq(opp);
+	new_oppinfo.volt = dev_pm_opp_get_voltage(opp);
 	rcu_read_unlock();
 	freq = new_oppinfo.rate;
 
@@ -873,7 +873,7 @@ static int exynos4210_init_tables(struct busfreq_data *data)
 		exynos4210_busclk_table[i].volt = exynos4210_asv_volt[mgrp][i];
 
 	for (i = LV_0; i < EX4210_LV_NUM; i++) {
-		err = opp_add(data->dev, exynos4210_busclk_table[i].clk,
+		err = dev_pm_opp_add(data->dev, exynos4210_busclk_table[i].clk,
 			      exynos4210_busclk_table[i].volt);
 		if (err) {
 			dev_err(data->dev, "Cannot add opp entries.\n");
@@ -940,7 +940,7 @@ static int exynos4x12_init_tables(struct busfreq_data *data)
 	}
 
 	for (i = 0; i < EX4x12_LV_NUM; i++) {
-		ret = opp_add(data->dev, exynos4x12_mifclk_table[i].clk,
+		ret = dev_pm_opp_add(data->dev, exynos4x12_mifclk_table[i].clk,
 			      exynos4x12_mifclk_table[i].volt);
 		if (ret) {
 			dev_err(data->dev, "Fail to add opp entries.\n");
@@ -969,7 +969,7 @@ static int exynos4_busfreq_pm_notifier_event(struct notifier_block *this,
 		data->disabled = true;
 
 		rcu_read_lock();
-		opp = opp_find_freq_floor(data->dev, &maxfreq);
+		opp = dev_pm_opp_find_freq_floor(data->dev, &maxfreq);
 		if (IS_ERR(opp)) {
 			rcu_read_unlock();
 			dev_err(data->dev, "%s: unable to find a min freq\n",
@@ -977,8 +977,8 @@ static int exynos4_busfreq_pm_notifier_event(struct notifier_block *this,
 			mutex_unlock(&data->lock);
 			return PTR_ERR(opp);
 		}
-		new_oppinfo.rate = opp_get_freq(opp);
-		new_oppinfo.volt = opp_get_voltage(opp);
+		new_oppinfo.rate = dev_pm_opp_get_freq(opp);
+		new_oppinfo.volt = dev_pm_opp_get_voltage(opp);
 		rcu_read_unlock();
 
 		err = exynos4_bus_setvolt(data, &new_oppinfo,
@@ -1065,15 +1065,16 @@ static int exynos4_busfreq_probe(struct platform_device *pdev)
 	}
 
 	rcu_read_lock();
-	opp = opp_find_freq_floor(dev, &exynos4_devfreq_profile.initial_freq);
+	opp = dev_pm_opp_find_freq_floor(dev,
+					 &exynos4_devfreq_profile.initial_freq);
 	if (IS_ERR(opp)) {
 		rcu_read_unlock();
 		dev_err(dev, "Invalid initial frequency %lu kHz.\n",
 			exynos4_devfreq_profile.initial_freq);
 		return PTR_ERR(opp);
 	}
-	data->curr_oppinfo.rate = opp_get_freq(opp);
-	data->curr_oppinfo.volt = opp_get_voltage(opp);
+	data->curr_oppinfo.rate = dev_pm_opp_get_freq(opp);
+	data->curr_oppinfo.volt = dev_pm_opp_get_voltage(opp);
 	rcu_read_unlock();
 
 	platform_set_drvdata(pdev, data);
diff --git a/drivers/devfreq/exynos/exynos5_bus.c b/drivers/devfreq/exynos/exynos5_bus.c
index 574b16b59be5..b0e45925505b 100644
--- a/drivers/devfreq/exynos/exynos5_bus.c
+++ b/drivers/devfreq/exynos/exynos5_bus.c
@@ -144,8 +144,8 @@ static int exynos5_busfreq_int_target(struct device *dev, unsigned long *_freq,
 		return PTR_ERR(opp);
 	}
 
-	freq = opp_get_freq(opp);
-	volt = opp_get_voltage(opp);
+	freq = dev_pm_opp_get_freq(opp);
+	volt = dev_pm_opp_get_voltage(opp);
 	rcu_read_unlock();
 
 	old_freq = data->curr_freq;
@@ -246,7 +246,7 @@ static int exynos5250_init_int_tables(struct busfreq_data_int *data)
 	int i, err = 0;
 
 	for (i = LV_0; i < _LV_END; i++) {
-		err = opp_add(data->dev, exynos5_int_opp_table[i].clk,
+		err = dev_pm_opp_add(data->dev, exynos5_int_opp_table[i].clk,
 				exynos5_int_opp_table[i].volt);
 		if (err) {
 			dev_err(data->dev, "Cannot add opp entries.\n");
@@ -276,14 +276,14 @@ static int exynos5_busfreq_int_pm_notifier_event(struct notifier_block *this,
 		data->disabled = true;
 
 		rcu_read_lock();
-		opp = opp_find_freq_floor(data->dev, &maxfreq);
+		opp = dev_pm_opp_find_freq_floor(data->dev, &maxfreq);
 		if (IS_ERR(opp)) {
 			rcu_read_unlock();
 			err = PTR_ERR(opp);
 			goto unlock;
 		}
-		freq = opp_get_freq(opp);
-		volt = opp_get_voltage(opp);
+		freq = dev_pm_opp_get_freq(opp);
+		volt = dev_pm_opp_get_voltage(opp);
 		rcu_read_unlock();
 
 		err = exynos5_int_setvolt(data, volt);
@@ -368,7 +368,7 @@ static int exynos5_busfreq_int_probe(struct platform_device *pdev)
 	}
 
 	rcu_read_lock();
-	opp = opp_find_freq_floor(dev,
+	opp = dev_pm_opp_find_freq_floor(dev,
 			&exynos5_devfreq_int_profile.initial_freq);
 	if (IS_ERR(opp)) {
 		rcu_read_unlock();
@@ -377,8 +377,8 @@ static int exynos5_busfreq_int_probe(struct platform_device *pdev)
 		err = PTR_ERR(opp);
 		goto err_opp_add;
 	}
-	initial_freq = opp_get_freq(opp);
-	initial_volt = opp_get_voltage(opp);
+	initial_freq = dev_pm_opp_get_freq(opp);
+	initial_volt = dev_pm_opp_get_voltage(opp);
 	rcu_read_unlock();
 	data->curr_freq = initial_freq;
 
diff --git a/include/linux/opp.h b/include/linux/opp.h
index 3aca2b8def33..2066ae5880c6 100644
--- a/include/linux/opp.h
+++ b/include/linux/opp.h
@@ -27,77 +27,79 @@ enum opp_event {
 
 #if defined(CONFIG_PM_OPP)
 
-unsigned long opp_get_voltage(struct opp *opp);
+unsigned long dev_pm_opp_get_voltage(struct opp *opp);
 
-unsigned long opp_get_freq(struct opp *opp);
+unsigned long dev_pm_opp_get_freq(struct opp *opp);
 
-int opp_get_opp_count(struct device *dev);
+int dev_pm_opp_get_opp_count(struct device *dev);
 
-struct opp *opp_find_freq_exact(struct device *dev, unsigned long freq,
+struct opp *dev_pm_opp_find_freq_exact(struct device *dev, unsigned long freq,
 				bool available);
 
-struct opp *opp_find_freq_floor(struct device *dev, unsigned long *freq);
+struct opp *dev_pm_opp_find_freq_floor(struct device *dev, unsigned long *freq);
 
-struct opp *opp_find_freq_ceil(struct device *dev, unsigned long *freq);
+struct opp *dev_pm_opp_find_freq_ceil(struct device *dev, unsigned long *freq);
 
-int opp_add(struct device *dev, unsigned long freq, unsigned long u_volt);
+int dev_pm_opp_add(struct device *dev, unsigned long freq,
+		   unsigned long u_volt);
 
-int opp_enable(struct device *dev, unsigned long freq);
+int dev_pm_opp_enable(struct device *dev, unsigned long freq);
 
-int opp_disable(struct device *dev, unsigned long freq);
+int dev_pm_opp_disable(struct device *dev, unsigned long freq);
 
-struct srcu_notifier_head *opp_get_notifier(struct device *dev);
+struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev);
 #else
-static inline unsigned long opp_get_voltage(struct opp *opp)
+static inline unsigned long dev_pm_opp_get_voltage(struct opp *opp)
 {
 	return 0;
 }
 
-static inline unsigned long opp_get_freq(struct opp *opp)
+static inline unsigned long dev_pm_opp_get_freq(struct opp *opp)
 {
 	return 0;
 }
 
-static inline int opp_get_opp_count(struct device *dev)
+static inline int dev_pm_opp_get_opp_count(struct device *dev)
 {
 	return 0;
 }
 
-static inline struct opp *opp_find_freq_exact(struct device *dev,
+static inline struct opp *dev_pm_opp_find_freq_exact(struct device *dev,
 					unsigned long freq, bool available)
 {
 	return ERR_PTR(-EINVAL);
 }
 
-static inline struct opp *opp_find_freq_floor(struct device *dev,
+static inline struct opp *dev_pm_opp_find_freq_floor(struct device *dev,
 					unsigned long *freq)
 {
 	return ERR_PTR(-EINVAL);
 }
 
-static inline struct opp *opp_find_freq_ceil(struct device *dev,
+static inline struct opp *dev_pm_opp_find_freq_ceil(struct device *dev,
 					unsigned long *freq)
 {
 	return ERR_PTR(-EINVAL);
 }
 
-static inline int opp_add(struct device *dev, unsigned long freq,
+static inline int dev_pm_opp_add(struct device *dev, unsigned long freq,
 					unsigned long u_volt)
 {
 	return -EINVAL;
 }
 
-static inline int opp_enable(struct device *dev, unsigned long freq)
+static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq)
 {
 	return 0;
 }
 
-static inline int opp_disable(struct device *dev, unsigned long freq)
+static inline int dev_pm_opp_disable(struct device *dev, unsigned long freq)
 {
 	return 0;
 }
 
-static inline struct srcu_notifier_head *opp_get_notifier(struct device *dev)
+static inline struct srcu_notifier_head *dev_pm_opp_get_notifier(
+							struct device *dev)
 {
 	return ERR_PTR(-EINVAL);
 }
@@ -113,19 +115,19 @@ static inline int of_init_opp_table(struct device *dev)
 #endif
 
 #if defined(CONFIG_CPU_FREQ) && defined(CONFIG_PM_OPP)
-int opp_init_cpufreq_table(struct device *dev,
+int dev_pm_opp_init_cpufreq_table(struct device *dev,
 			    struct cpufreq_frequency_table **table);
-void opp_free_cpufreq_table(struct device *dev,
+void dev_pm_opp_free_cpufreq_table(struct device *dev,
 				struct cpufreq_frequency_table **table);
 #else
-static inline int opp_init_cpufreq_table(struct device *dev,
+static inline int dev_pm_opp_init_cpufreq_table(struct device *dev,
 			    struct cpufreq_frequency_table **table)
 {
 	return -EINVAL;
 }
 
 static inline
-void opp_free_cpufreq_table(struct device *dev,
+void dev_pm_opp_free_cpufreq_table(struct device *dev,
 				struct cpufreq_frequency_table **table)
 {
 }
-- 
cgit 


From 47d43ba73eb98d8ba731208735c899129d9849e1 Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Thu, 19 Sep 2013 16:03:51 -0500
Subject: PM / OPP: rename data structures to dev_pm equivalents

Since Operating Performance Points (OPP) data structures are specific
to device specific power management, be specific and rename opp_* data
structures in OPP library with dev_pm_opp_* equivalent.

Affected structures are:
 struct opp
 enum opp_event

Minor checkpatch warning resulting of this change was fixed as well.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 Documentation/power/opp.txt          |  4 ++--
 arch/arm/mach-omap2/pm.c             |  2 +-
 drivers/base/power/opp.c             | 41 +++++++++++++++++++-----------------
 drivers/cpufreq/cpufreq-cpu0.c       |  4 ++--
 drivers/cpufreq/exynos5440-cpufreq.c |  2 +-
 drivers/cpufreq/imx6q-cpufreq.c      |  4 ++--
 drivers/cpufreq/omap-cpufreq.c       |  2 +-
 drivers/devfreq/devfreq.c            |  9 ++++----
 drivers/devfreq/exynos/exynos4_bus.c |  6 +++---
 drivers/devfreq/exynos/exynos5_bus.c |  6 +++---
 include/linux/devfreq.h              |  4 ++--
 include/linux/opp.h                  | 29 +++++++++++++------------
 12 files changed, 60 insertions(+), 53 deletions(-)

diff --git a/Documentation/power/opp.txt b/Documentation/power/opp.txt
index 185367b1848f..7f67e3d2c530 100644
--- a/Documentation/power/opp.txt
+++ b/Documentation/power/opp.txt
@@ -358,14 +358,14 @@ accessed by various functions as described above. However, the structures
 representing the actual OPPs and domains are internal to the OPP library itself
 to allow for suitable abstraction reusable across systems.
 
-struct opp - The internal data structure of OPP library which is used to
+struct dev_pm_opp - The internal data structure of OPP library which is used to
 	represent an OPP. In addition to the freq, voltage, availability
 	information, it also contains internal book keeping information required
 	for the OPP library to operate on.  Pointer to this structure is
 	provided back to the users such as SoC framework to be used as a
 	identifier for OPP in the interactions with OPP layer.
 
-	WARNING: The struct opp pointer should not be parsed or modified by the
+	WARNING: The struct dev_pm_opp pointer should not be parsed or modified by the
 	users. The defaults of for an instance is populated by dev_pm_opp_add, but the
 	availability of the OPP can be modified by dev_pm_opp_enable/disable functions.
 
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index 937744c3679d..92901bd41490 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -131,7 +131,7 @@ static int __init omap2_set_init_voltage(char *vdd_name, char *clk_name,
 {
 	struct voltagedomain *voltdm;
 	struct clk *clk;
-	struct opp *opp;
+	struct dev_pm_opp *opp;
 	unsigned long freq, bootup_volt;
 	struct device *dev;
 
diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c
index 00c6a449cdeb..693e14a24914 100644
--- a/drivers/base/power/opp.c
+++ b/drivers/base/power/opp.c
@@ -42,7 +42,7 @@
  */
 
 /**
- * struct opp - Generic OPP description structure
+ * struct dev_pm_opp - Generic OPP description structure
  * @node:	opp list node. The nodes are maintained throughout the lifetime
  *		of boot. It is expected only an optimal set of OPPs are
  *		added to the library by the SoC framework.
@@ -59,7 +59,7 @@
  *
  * This structure stores the OPP information for a given device.
  */
-struct opp {
+struct dev_pm_opp {
 	struct list_head node;
 
 	bool available;
@@ -150,9 +150,9 @@ static struct device_opp *find_device_opp(struct device *dev)
  * prior to unlocking with rcu_read_unlock() to maintain the integrity of the
  * pointer.
  */
-unsigned long dev_pm_opp_get_voltage(struct opp *opp)
+unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp)
 {
-	struct opp *tmp_opp;
+	struct dev_pm_opp *tmp_opp;
 	unsigned long v = 0;
 
 	tmp_opp = rcu_dereference(opp);
@@ -180,9 +180,9 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_get_voltage);
  * prior to unlocking with rcu_read_unlock() to maintain the integrity of the
  * pointer.
  */
-unsigned long dev_pm_opp_get_freq(struct opp *opp)
+unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp)
 {
-	struct opp *tmp_opp;
+	struct dev_pm_opp *tmp_opp;
 	unsigned long f = 0;
 
 	tmp_opp = rcu_dereference(opp);
@@ -209,7 +209,7 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_get_freq);
 int dev_pm_opp_get_opp_count(struct device *dev)
 {
 	struct device_opp *dev_opp;
-	struct opp *temp_opp;
+	struct dev_pm_opp *temp_opp;
 	int count = 0;
 
 	dev_opp = find_device_opp(dev);
@@ -254,11 +254,12 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_get_opp_count);
  * under the locked area. The pointer returned must be used prior to unlocking
  * with rcu_read_unlock() to maintain the integrity of the pointer.
  */
-struct opp *dev_pm_opp_find_freq_exact(struct device *dev, unsigned long freq,
-				bool available)
+struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
+					      unsigned long freq,
+					      bool available)
 {
 	struct device_opp *dev_opp;
-	struct opp *temp_opp, *opp = ERR_PTR(-ERANGE);
+	struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE);
 
 	dev_opp = find_device_opp(dev);
 	if (IS_ERR(dev_opp)) {
@@ -300,10 +301,11 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_exact);
  * under the locked area. The pointer returned must be used prior to unlocking
  * with rcu_read_unlock() to maintain the integrity of the pointer.
  */
-struct opp *dev_pm_opp_find_freq_ceil(struct device *dev, unsigned long *freq)
+struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
+					     unsigned long *freq)
 {
 	struct device_opp *dev_opp;
-	struct opp *temp_opp, *opp = ERR_PTR(-ERANGE);
+	struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE);
 
 	if (!dev || !freq) {
 		dev_err(dev, "%s: Invalid argument freq=%p\n", __func__, freq);
@@ -347,10 +349,11 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_ceil);
  * under the locked area. The pointer returned must be used prior to unlocking
  * with rcu_read_unlock() to maintain the integrity of the pointer.
  */
-struct opp *dev_pm_opp_find_freq_floor(struct device *dev, unsigned long *freq)
+struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
+					      unsigned long *freq)
 {
 	struct device_opp *dev_opp;
-	struct opp *temp_opp, *opp = ERR_PTR(-ERANGE);
+	struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE);
 
 	if (!dev || !freq) {
 		dev_err(dev, "%s: Invalid argument freq=%p\n", __func__, freq);
@@ -396,11 +399,11 @@ EXPORT_SYMBOL_GPL(dev_pm_opp_find_freq_floor);
 int dev_pm_opp_add(struct device *dev, unsigned long freq, unsigned long u_volt)
 {
 	struct device_opp *dev_opp = NULL;
-	struct opp *opp, *new_opp;
+	struct dev_pm_opp *opp, *new_opp;
 	struct list_head *head;
 
 	/* allocate new OPP node */
-	new_opp = kzalloc(sizeof(struct opp), GFP_KERNEL);
+	new_opp = kzalloc(sizeof(*new_opp), GFP_KERNEL);
 	if (!new_opp) {
 		dev_warn(dev, "%s: Unable to create new OPP node\n", __func__);
 		return -ENOMEM;
@@ -485,11 +488,11 @@ static int opp_set_availability(struct device *dev, unsigned long freq,
 		bool availability_req)
 {
 	struct device_opp *tmp_dev_opp, *dev_opp = ERR_PTR(-ENODEV);
-	struct opp *new_opp, *tmp_opp, *opp = ERR_PTR(-ENODEV);
+	struct dev_pm_opp *new_opp, *tmp_opp, *opp = ERR_PTR(-ENODEV);
 	int r = 0;
 
 	/* keep the node allocated */
-	new_opp = kmalloc(sizeof(struct opp), GFP_KERNEL);
+	new_opp = kmalloc(sizeof(*new_opp), GFP_KERNEL);
 	if (!new_opp) {
 		dev_warn(dev, "%s: Unable to create OPP\n", __func__);
 		return -ENOMEM;
@@ -623,7 +626,7 @@ int dev_pm_opp_init_cpufreq_table(struct device *dev,
 			    struct cpufreq_frequency_table **table)
 {
 	struct device_opp *dev_opp;
-	struct opp *opp;
+	struct dev_pm_opp *opp;
 	struct cpufreq_frequency_table *freq_table;
 	int i = 0;
 
diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
index af951a9cea78..d73107894fee 100644
--- a/drivers/cpufreq/cpufreq-cpu0.c
+++ b/drivers/cpufreq/cpufreq-cpu0.c
@@ -44,7 +44,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy,
 			   unsigned int target_freq, unsigned int relation)
 {
 	struct cpufreq_freqs freqs;
-	struct opp *opp;
+	struct dev_pm_opp *opp;
 	unsigned long volt = 0, volt_old = 0, tol = 0;
 	long freq_Hz, freq_exact;
 	unsigned int index;
@@ -230,7 +230,7 @@ static int cpu0_cpufreq_probe(struct platform_device *pdev)
 		transition_latency = CPUFREQ_ETERNAL;
 
 	if (!IS_ERR(cpu_reg)) {
-		struct opp *opp;
+		struct dev_pm_opp *opp;
 		unsigned long min_uV, max_uV;
 		int i;
 
diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c
index 444eca74d3c2..c8b3d3950f9e 100644
--- a/drivers/cpufreq/exynos5440-cpufreq.c
+++ b/drivers/cpufreq/exynos5440-cpufreq.c
@@ -118,7 +118,7 @@ static int init_div_table(void)
 	struct cpufreq_frequency_table *freq_tbl = dvfs_info->freq_table;
 	unsigned int tmp, clk_div, ema_div, freq, volt_id;
 	int i = 0;
-	struct opp *opp;
+	struct dev_pm_opp *opp;
 
 	rcu_read_lock();
 	for (i = 0; freq_tbl[i].frequency != CPUFREQ_TABLE_END; i++) {
diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index b360549e7715..84e993dfb305 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -49,7 +49,7 @@ static int imx6q_set_target(struct cpufreq_policy *policy,
 			    unsigned int target_freq, unsigned int relation)
 {
 	struct cpufreq_freqs freqs;
-	struct opp *opp;
+	struct dev_pm_opp *opp;
 	unsigned long freq_hz, volt, volt_old;
 	unsigned int index;
 	int ret;
@@ -199,7 +199,7 @@ static struct cpufreq_driver imx6q_cpufreq_driver = {
 static int imx6q_cpufreq_probe(struct platform_device *pdev)
 {
 	struct device_node *np;
-	struct opp *opp;
+	struct dev_pm_opp *opp;
 	unsigned long min_volt, max_volt;
 	int num, ret;
 
diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index c5e31d296607..f057d423020c 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -65,7 +65,7 @@ static int omap_target(struct cpufreq_policy *policy,
 	unsigned int i;
 	int r, ret = 0;
 	struct cpufreq_freqs freqs;
-	struct opp *opp;
+	struct dev_pm_opp *opp;
 	unsigned long freq, volt = 0, volt_old = 0, tol = 0;
 
 	if (!freq_table) {
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index f798edcb910d..03530a0a8042 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -902,7 +902,7 @@ static ssize_t available_frequencies_show(struct device *d,
 {
 	struct devfreq *df = to_devfreq(d);
 	struct device *dev = df->dev.parent;
-	struct opp *opp;
+	struct dev_pm_opp *opp;
 	ssize_t count = 0;
 	unsigned long freq = 0;
 
@@ -1029,10 +1029,11 @@ module_exit(devfreq_exit);
  * under the locked area. The pointer returned must be used prior to unlocking
  * with rcu_read_unlock() to maintain the integrity of the pointer.
  */
-struct opp *devfreq_recommended_opp(struct device *dev, unsigned long *freq,
-				    u32 flags)
+struct dev_pm_opp *devfreq_recommended_opp(struct device *dev,
+					   unsigned long *freq,
+					   u32 flags)
 {
-	struct opp *opp;
+	struct dev_pm_opp *opp;
 
 	if (flags & DEVFREQ_FLAG_LEAST_UPPER_BOUND) {
 		/* The freq is an upper bound. opp should be lower */
diff --git a/drivers/devfreq/exynos/exynos4_bus.c b/drivers/devfreq/exynos/exynos4_bus.c
index 33c0e05a5ff1..891becd46513 100644
--- a/drivers/devfreq/exynos/exynos4_bus.c
+++ b/drivers/devfreq/exynos/exynos4_bus.c
@@ -639,7 +639,7 @@ static int exynos4_bus_target(struct device *dev, unsigned long *_freq,
 	struct platform_device *pdev = container_of(dev, struct platform_device,
 						    dev);
 	struct busfreq_data *data = platform_get_drvdata(pdev);
-	struct opp *opp;
+	struct dev_pm_opp *opp;
 	unsigned long freq;
 	unsigned long old_freq = data->curr_oppinfo.rate;
 	struct busfreq_opp_info	new_oppinfo;
@@ -956,7 +956,7 @@ static int exynos4_busfreq_pm_notifier_event(struct notifier_block *this,
 {
 	struct busfreq_data *data = container_of(this, struct busfreq_data,
 						 pm_notifier);
-	struct opp *opp;
+	struct dev_pm_opp *opp;
 	struct busfreq_opp_info	new_oppinfo;
 	unsigned long maxfreq = ULONG_MAX;
 	int err = 0;
@@ -1020,7 +1020,7 @@ unlock:
 static int exynos4_busfreq_probe(struct platform_device *pdev)
 {
 	struct busfreq_data *data;
-	struct opp *opp;
+	struct dev_pm_opp *opp;
 	struct device *dev = &pdev->dev;
 	int err = 0;
 
diff --git a/drivers/devfreq/exynos/exynos5_bus.c b/drivers/devfreq/exynos/exynos5_bus.c
index b0e45925505b..d06232aa0738 100644
--- a/drivers/devfreq/exynos/exynos5_bus.c
+++ b/drivers/devfreq/exynos/exynos5_bus.c
@@ -132,7 +132,7 @@ static int exynos5_busfreq_int_target(struct device *dev, unsigned long *_freq,
 	struct platform_device *pdev = container_of(dev, struct platform_device,
 						    dev);
 	struct busfreq_data_int *data = platform_get_drvdata(pdev);
-	struct opp *opp;
+	struct dev_pm_opp *opp;
 	unsigned long old_freq, freq;
 	unsigned long volt;
 
@@ -262,7 +262,7 @@ static int exynos5_busfreq_int_pm_notifier_event(struct notifier_block *this,
 {
 	struct busfreq_data_int *data = container_of(this,
 					struct busfreq_data_int, pm_notifier);
-	struct opp *opp;
+	struct dev_pm_opp *opp;
 	unsigned long maxfreq = ULONG_MAX;
 	unsigned long freq;
 	unsigned long volt;
@@ -316,7 +316,7 @@ unlock:
 static int exynos5_busfreq_int_probe(struct platform_device *pdev)
 {
 	struct busfreq_data_int *data;
-	struct opp *opp;
+	struct dev_pm_opp *opp;
 	struct device *dev = &pdev->dev;
 	struct device_node *np;
 	unsigned long initial_freq;
diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
index 5f1ab92107e6..c8c995325ca8 100644
--- a/include/linux/devfreq.h
+++ b/include/linux/devfreq.h
@@ -187,7 +187,7 @@ extern int devfreq_suspend_device(struct devfreq *devfreq);
 extern int devfreq_resume_device(struct devfreq *devfreq);
 
 /* Helper functions for devfreq user device driver with OPP. */
-extern struct opp *devfreq_recommended_opp(struct device *dev,
+extern struct dev_pm_opp *devfreq_recommended_opp(struct device *dev,
 					   unsigned long *freq, u32 flags);
 extern int devfreq_register_opp_notifier(struct device *dev,
 					 struct devfreq *devfreq);
@@ -238,7 +238,7 @@ static inline int devfreq_resume_device(struct devfreq *devfreq)
 	return 0;
 }
 
-static inline struct opp *devfreq_recommended_opp(struct device *dev,
+static inline struct dev_pm_opp *devfreq_recommended_opp(struct device *dev,
 					   unsigned long *freq, u32 flags)
 {
 	return ERR_PTR(-EINVAL);
diff --git a/include/linux/opp.h b/include/linux/opp.h
index 2066ae5880c6..5151b0059585 100644
--- a/include/linux/opp.h
+++ b/include/linux/opp.h
@@ -18,27 +18,30 @@
 #include <linux/cpufreq.h>
 #include <linux/notifier.h>
 
-struct opp;
+struct dev_pm_opp;
 struct device;
 
-enum opp_event {
+enum dev_pm_opp_event {
 	OPP_EVENT_ADD, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE,
 };
 
 #if defined(CONFIG_PM_OPP)
 
-unsigned long dev_pm_opp_get_voltage(struct opp *opp);
+unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp);
 
-unsigned long dev_pm_opp_get_freq(struct opp *opp);
+unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp);
 
 int dev_pm_opp_get_opp_count(struct device *dev);
 
-struct opp *dev_pm_opp_find_freq_exact(struct device *dev, unsigned long freq,
-				bool available);
+struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
+					      unsigned long freq,
+					      bool available);
 
-struct opp *dev_pm_opp_find_freq_floor(struct device *dev, unsigned long *freq);
+struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
+					      unsigned long *freq);
 
-struct opp *dev_pm_opp_find_freq_ceil(struct device *dev, unsigned long *freq);
+struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
+					     unsigned long *freq);
 
 int dev_pm_opp_add(struct device *dev, unsigned long freq,
 		   unsigned long u_volt);
@@ -49,12 +52,12 @@ int dev_pm_opp_disable(struct device *dev, unsigned long freq);
 
 struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev);
 #else
-static inline unsigned long dev_pm_opp_get_voltage(struct opp *opp)
+static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp)
 {
 	return 0;
 }
 
-static inline unsigned long dev_pm_opp_get_freq(struct opp *opp)
+static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp)
 {
 	return 0;
 }
@@ -64,19 +67,19 @@ static inline int dev_pm_opp_get_opp_count(struct device *dev)
 	return 0;
 }
 
-static inline struct opp *dev_pm_opp_find_freq_exact(struct device *dev,
+static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
 					unsigned long freq, bool available)
 {
 	return ERR_PTR(-EINVAL);
 }
 
-static inline struct opp *dev_pm_opp_find_freq_floor(struct device *dev,
+static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
 					unsigned long *freq)
 {
 	return ERR_PTR(-EINVAL);
 }
 
-static inline struct opp *dev_pm_opp_find_freq_ceil(struct device *dev,
+static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
 					unsigned long *freq)
 {
 	return ERR_PTR(-EINVAL);
-- 
cgit 


From e4db1c7439b31993a4886b273bb9235a8eea82bf Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Thu, 19 Sep 2013 16:03:52 -0500
Subject: PM / OPP: rename header to linux/pm_opp.h

Since Operating Performance Points (OPP) functions are specific
to device specific power management, be specific and rename opp.h
to pm_opp.h

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 Documentation/power/opp.txt             |   2 +-
 arch/arm/mach-imx/mach-imx6q.c          |   2 +-
 arch/arm/mach-omap2/board-omap3beagle.c |   2 +-
 arch/arm/mach-omap2/omap-pm.h           |   2 +-
 arch/arm/mach-omap2/opp.c               |   2 +-
 arch/arm/mach-omap2/pm.c                |   2 +-
 drivers/base/power/opp.c                |   2 +-
 drivers/cpufreq/arm_big_little.c        |   2 +-
 drivers/cpufreq/arm_big_little_dt.c     |   2 +-
 drivers/cpufreq/cpufreq-cpu0.c          |   2 +-
 drivers/cpufreq/exynos5440-cpufreq.c    |   2 +-
 drivers/cpufreq/imx6q-cpufreq.c         |   2 +-
 drivers/cpufreq/omap-cpufreq.c          |   2 +-
 drivers/devfreq/devfreq.c               |   2 +-
 drivers/devfreq/exynos/exynos4_bus.c    |   2 +-
 drivers/devfreq/exynos/exynos5_bus.c    |   4 +-
 include/linux/devfreq.h                 |   2 +-
 include/linux/opp.h                     | 139 --------------------------------
 include/linux/pm_opp.h                  | 139 ++++++++++++++++++++++++++++++++
 19 files changed, 157 insertions(+), 157 deletions(-)
 delete mode 100644 include/linux/opp.h
 create mode 100644 include/linux/pm_opp.h

diff --git a/Documentation/power/opp.txt b/Documentation/power/opp.txt
index 7f67e3d2c530..b8a907dc0169 100644
--- a/Documentation/power/opp.txt
+++ b/Documentation/power/opp.txt
@@ -42,7 +42,7 @@ We can represent these as three OPPs as the following {Hz, uV} tuples:
 
 OPP library provides a set of helper functions to organize and query the OPP
 information. The library is located in drivers/base/power/opp.c and the header
-is located in include/linux/opp.h. OPP library can be enabled by enabling
+is located in include/linux/pm_opp.h. OPP library can be enabled by enabling
 CONFIG_PM_OPP from power management menuconfig menu. OPP library depends on
 CONFIG_PM as certain SoCs such as Texas Instrument's OMAP framework allows to
 optionally boot at a certain OPP without needing cpufreq.
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c
index d7ecc90e6bba..699aabe296e1 100644
--- a/arch/arm/mach-imx/mach-imx6q.c
+++ b/arch/arm/mach-imx/mach-imx6q.c
@@ -25,7 +25,7 @@
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
 #include <linux/of_platform.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
 #include <linux/phy.h>
 #include <linux/reboot.h>
 #include <linux/regmap.h>
diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index 33969e5a149f..6432ab8d9207 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -25,7 +25,7 @@
 #include <linux/gpio.h>
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
 #include <linux/cpu.h>
 
 #include <linux/mtd/mtd.h>
diff --git a/arch/arm/mach-omap2/omap-pm.h b/arch/arm/mach-omap2/omap-pm.h
index 67faa7b8fe92..1d777e63e05c 100644
--- a/arch/arm/mach-omap2/omap-pm.h
+++ b/arch/arm/mach-omap2/omap-pm.h
@@ -17,7 +17,7 @@
 #include <linux/device.h>
 #include <linux/cpufreq.h>
 #include <linux/clk.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
 
 /*
  * agent_id values for use with omap_pm_set_min_bus_tput():
diff --git a/arch/arm/mach-omap2/opp.c b/arch/arm/mach-omap2/opp.c
index 7b04637b13cb..ec21e6eb03e1 100644
--- a/arch/arm/mach-omap2/opp.c
+++ b/arch/arm/mach-omap2/opp.c
@@ -17,7 +17,7 @@
  * GNU General Public License for more details.
  */
 #include <linux/module.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
 #include <linux/cpu.h>
 
 #include "omap_device.h"
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index 92901bd41490..2f569b3c3092 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -13,7 +13,7 @@
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/err.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
 #include <linux/export.h>
 #include <linux/suspend.h>
 #include <linux/cpu.h>
diff --git a/drivers/base/power/opp.c b/drivers/base/power/opp.c
index 693e14a24914..fa4187418440 100644
--- a/drivers/base/power/opp.c
+++ b/drivers/base/power/opp.c
@@ -21,7 +21,7 @@
 #include <linux/list.h>
 #include <linux/rculist.h>
 #include <linux/rcupdate.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
 #include <linux/of.h>
 #include <linux/export.h>
 
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index 9e82a9d5df77..e010fb722c6b 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -25,7 +25,7 @@
 #include <linux/cpumask.h>
 #include <linux/export.h>
 #include <linux/of_platform.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
 #include <linux/slab.h>
 #include <linux/topology.h>
 #include <linux/types.h>
diff --git a/drivers/cpufreq/arm_big_little_dt.c b/drivers/cpufreq/arm_big_little_dt.c
index 480c0bd0468d..8d9d59108906 100644
--- a/drivers/cpufreq/arm_big_little_dt.c
+++ b/drivers/cpufreq/arm_big_little_dt.c
@@ -24,7 +24,7 @@
 #include <linux/export.h>
 #include <linux/module.h>
 #include <linux/of_device.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/types.h>
diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
index d73107894fee..242d4900de47 100644
--- a/drivers/cpufreq/cpufreq-cpu0.c
+++ b/drivers/cpufreq/cpufreq-cpu0.c
@@ -17,7 +17,7 @@
 #include <linux/err.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
 #include <linux/platform_device.h>
 #include <linux/regulator/consumer.h>
 #include <linux/slab.h>
diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c
index c8b3d3950f9e..d41e77769d1a 100644
--- a/drivers/cpufreq/exynos5440-cpufreq.c
+++ b/drivers/cpufreq/exynos5440-cpufreq.c
@@ -20,7 +20,7 @@
 #include <linux/module.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 
diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index 84e993dfb305..e4c914066601 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -13,7 +13,7 @@
 #include <linux/err.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
 #include <linux/platform_device.h>
 #include <linux/regulator/consumer.h>
 
diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index f057d423020c..20190f56594f 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -22,7 +22,7 @@
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <linux/io.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
 #include <linux/cpu.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index 03530a0a8042..2e23b12c350b 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -18,7 +18,7 @@
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/stat.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
 #include <linux/devfreq.h>
 #include <linux/workqueue.h>
 #include <linux/platform_device.h>
diff --git a/drivers/devfreq/exynos/exynos4_bus.c b/drivers/devfreq/exynos/exynos4_bus.c
index 891becd46513..cede6f71cd63 100644
--- a/drivers/devfreq/exynos/exynos4_bus.c
+++ b/drivers/devfreq/exynos/exynos4_bus.c
@@ -19,7 +19,7 @@
 #include <linux/slab.h>
 #include <linux/mutex.h>
 #include <linux/suspend.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
 #include <linux/devfreq.h>
 #include <linux/platform_device.h>
 #include <linux/regulator/consumer.h>
diff --git a/drivers/devfreq/exynos/exynos5_bus.c b/drivers/devfreq/exynos/exynos5_bus.c
index d06232aa0738..52835f12ac98 100644
--- a/drivers/devfreq/exynos/exynos5_bus.c
+++ b/drivers/devfreq/exynos/exynos5_bus.c
@@ -15,10 +15,10 @@
 #include <linux/module.h>
 #include <linux/devfreq.h>
 #include <linux/io.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
 #include <linux/slab.h>
 #include <linux/suspend.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/platform_device.h>
diff --git a/include/linux/devfreq.h b/include/linux/devfreq.h
index c8c995325ca8..7a7cc74d7f27 100644
--- a/include/linux/devfreq.h
+++ b/include/linux/devfreq.h
@@ -15,7 +15,7 @@
 
 #include <linux/device.h>
 #include <linux/notifier.h>
-#include <linux/opp.h>
+#include <linux/pm_opp.h>
 
 #define DEVFREQ_NAME_LEN 16
 
diff --git a/include/linux/opp.h b/include/linux/opp.h
deleted file mode 100644
index 5151b0059585..000000000000
--- a/include/linux/opp.h
+++ /dev/null
@@ -1,139 +0,0 @@
-/*
- * Generic OPP Interface
- *
- * Copyright (C) 2009-2010 Texas Instruments Incorporated.
- *	Nishanth Menon
- *	Romit Dasgupta
- *	Kevin Hilman
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef __LINUX_OPP_H__
-#define __LINUX_OPP_H__
-
-#include <linux/err.h>
-#include <linux/cpufreq.h>
-#include <linux/notifier.h>
-
-struct dev_pm_opp;
-struct device;
-
-enum dev_pm_opp_event {
-	OPP_EVENT_ADD, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE,
-};
-
-#if defined(CONFIG_PM_OPP)
-
-unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp);
-
-unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp);
-
-int dev_pm_opp_get_opp_count(struct device *dev);
-
-struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
-					      unsigned long freq,
-					      bool available);
-
-struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
-					      unsigned long *freq);
-
-struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
-					     unsigned long *freq);
-
-int dev_pm_opp_add(struct device *dev, unsigned long freq,
-		   unsigned long u_volt);
-
-int dev_pm_opp_enable(struct device *dev, unsigned long freq);
-
-int dev_pm_opp_disable(struct device *dev, unsigned long freq);
-
-struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev);
-#else
-static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp)
-{
-	return 0;
-}
-
-static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp)
-{
-	return 0;
-}
-
-static inline int dev_pm_opp_get_opp_count(struct device *dev)
-{
-	return 0;
-}
-
-static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
-					unsigned long freq, bool available)
-{
-	return ERR_PTR(-EINVAL);
-}
-
-static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
-					unsigned long *freq)
-{
-	return ERR_PTR(-EINVAL);
-}
-
-static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
-					unsigned long *freq)
-{
-	return ERR_PTR(-EINVAL);
-}
-
-static inline int dev_pm_opp_add(struct device *dev, unsigned long freq,
-					unsigned long u_volt)
-{
-	return -EINVAL;
-}
-
-static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq)
-{
-	return 0;
-}
-
-static inline int dev_pm_opp_disable(struct device *dev, unsigned long freq)
-{
-	return 0;
-}
-
-static inline struct srcu_notifier_head *dev_pm_opp_get_notifier(
-							struct device *dev)
-{
-	return ERR_PTR(-EINVAL);
-}
-#endif		/* CONFIG_PM_OPP */
-
-#if defined(CONFIG_PM_OPP) && defined(CONFIG_OF)
-int of_init_opp_table(struct device *dev);
-#else
-static inline int of_init_opp_table(struct device *dev)
-{
-	return -EINVAL;
-}
-#endif
-
-#if defined(CONFIG_CPU_FREQ) && defined(CONFIG_PM_OPP)
-int dev_pm_opp_init_cpufreq_table(struct device *dev,
-			    struct cpufreq_frequency_table **table);
-void dev_pm_opp_free_cpufreq_table(struct device *dev,
-				struct cpufreq_frequency_table **table);
-#else
-static inline int dev_pm_opp_init_cpufreq_table(struct device *dev,
-			    struct cpufreq_frequency_table **table)
-{
-	return -EINVAL;
-}
-
-static inline
-void dev_pm_opp_free_cpufreq_table(struct device *dev,
-				struct cpufreq_frequency_table **table)
-{
-}
-#endif		/* CONFIG_CPU_FREQ */
-
-#endif		/* __LINUX_OPP_H__ */
diff --git a/include/linux/pm_opp.h b/include/linux/pm_opp.h
new file mode 100644
index 000000000000..5151b0059585
--- /dev/null
+++ b/include/linux/pm_opp.h
@@ -0,0 +1,139 @@
+/*
+ * Generic OPP Interface
+ *
+ * Copyright (C) 2009-2010 Texas Instruments Incorporated.
+ *	Nishanth Menon
+ *	Romit Dasgupta
+ *	Kevin Hilman
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __LINUX_OPP_H__
+#define __LINUX_OPP_H__
+
+#include <linux/err.h>
+#include <linux/cpufreq.h>
+#include <linux/notifier.h>
+
+struct dev_pm_opp;
+struct device;
+
+enum dev_pm_opp_event {
+	OPP_EVENT_ADD, OPP_EVENT_ENABLE, OPP_EVENT_DISABLE,
+};
+
+#if defined(CONFIG_PM_OPP)
+
+unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp);
+
+unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp);
+
+int dev_pm_opp_get_opp_count(struct device *dev);
+
+struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
+					      unsigned long freq,
+					      bool available);
+
+struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
+					      unsigned long *freq);
+
+struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
+					     unsigned long *freq);
+
+int dev_pm_opp_add(struct device *dev, unsigned long freq,
+		   unsigned long u_volt);
+
+int dev_pm_opp_enable(struct device *dev, unsigned long freq);
+
+int dev_pm_opp_disable(struct device *dev, unsigned long freq);
+
+struct srcu_notifier_head *dev_pm_opp_get_notifier(struct device *dev);
+#else
+static inline unsigned long dev_pm_opp_get_voltage(struct dev_pm_opp *opp)
+{
+	return 0;
+}
+
+static inline unsigned long dev_pm_opp_get_freq(struct dev_pm_opp *opp)
+{
+	return 0;
+}
+
+static inline int dev_pm_opp_get_opp_count(struct device *dev)
+{
+	return 0;
+}
+
+static inline struct dev_pm_opp *dev_pm_opp_find_freq_exact(struct device *dev,
+					unsigned long freq, bool available)
+{
+	return ERR_PTR(-EINVAL);
+}
+
+static inline struct dev_pm_opp *dev_pm_opp_find_freq_floor(struct device *dev,
+					unsigned long *freq)
+{
+	return ERR_PTR(-EINVAL);
+}
+
+static inline struct dev_pm_opp *dev_pm_opp_find_freq_ceil(struct device *dev,
+					unsigned long *freq)
+{
+	return ERR_PTR(-EINVAL);
+}
+
+static inline int dev_pm_opp_add(struct device *dev, unsigned long freq,
+					unsigned long u_volt)
+{
+	return -EINVAL;
+}
+
+static inline int dev_pm_opp_enable(struct device *dev, unsigned long freq)
+{
+	return 0;
+}
+
+static inline int dev_pm_opp_disable(struct device *dev, unsigned long freq)
+{
+	return 0;
+}
+
+static inline struct srcu_notifier_head *dev_pm_opp_get_notifier(
+							struct device *dev)
+{
+	return ERR_PTR(-EINVAL);
+}
+#endif		/* CONFIG_PM_OPP */
+
+#if defined(CONFIG_PM_OPP) && defined(CONFIG_OF)
+int of_init_opp_table(struct device *dev);
+#else
+static inline int of_init_opp_table(struct device *dev)
+{
+	return -EINVAL;
+}
+#endif
+
+#if defined(CONFIG_CPU_FREQ) && defined(CONFIG_PM_OPP)
+int dev_pm_opp_init_cpufreq_table(struct device *dev,
+			    struct cpufreq_frequency_table **table);
+void dev_pm_opp_free_cpufreq_table(struct device *dev,
+				struct cpufreq_frequency_table **table);
+#else
+static inline int dev_pm_opp_init_cpufreq_table(struct device *dev,
+			    struct cpufreq_frequency_table **table)
+{
+	return -EINVAL;
+}
+
+static inline
+void dev_pm_opp_free_cpufreq_table(struct device *dev,
+				struct cpufreq_frequency_table **table)
+{
+}
+#endif		/* CONFIG_CPU_FREQ */
+
+#endif		/* __LINUX_OPP_H__ */
-- 
cgit 


From 9c0ebcf78fde0ffa348a95a544c6d3f2dac5af65 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Fri, 25 Oct 2013 19:45:48 +0530
Subject: cpufreq: Implement light weight ->target_index() routine

Currently, the prototype of cpufreq_drivers target routines is:

int target(struct cpufreq_policy *policy, unsigned int target_freq,
		unsigned int relation);

And most of the drivers call cpufreq_frequency_table_target() to get a valid
index of their frequency table which is closest to the target_freq. And they
don't use target_freq and relation after that.

So, it makes sense to just do this work in cpufreq core before calling
cpufreq_frequency_table_target() and simply pass index instead. But this can be
done only with drivers which expose their frequency table with cpufreq core. For
others we need to stick with the old prototype of target() until those drivers
are converted to expose frequency tables.

This patch implements the new light weight prototype for target_index() routine.
It looks like this:

int target_index(struct cpufreq_policy *policy, unsigned int index);

CPUFreq core will call cpufreq_frequency_table_target() before calling this
routine and pass index to it. Because CPUFreq core now requires to call routines
present in freq_table.c CONFIG_CPU_FREQ_TABLE must be enabled all the time.

This also marks target() interface as deprecated. So, that new drivers avoid
using it. And Documentation is updated accordingly.

It also converts existing .target() to newly defined light weight
.target_index() routine for many driver.

Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Russell King <linux@arm.linux.org.uk>
Acked-by: David S. Miller <davem@davemloft.net>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rjw@rjwysocki.net>
---
 Documentation/cpu-freq/cpu-drivers.txt | 27 ++++++++++------
 Documentation/cpu-freq/governors.txt   |  4 +--
 arch/arm/mach-sa1100/generic.c         | 20 ------------
 arch/arm/mach-sa1100/generic.h         |  2 --
 drivers/cpufreq/acpi-cpufreq.c         | 21 ++++---------
 drivers/cpufreq/arm_big_little.c       | 17 +++-------
 drivers/cpufreq/at32ap-cpufreq.c       | 23 +++-----------
 drivers/cpufreq/blackfin-cpufreq.c     | 17 +++-------
 drivers/cpufreq/cpufreq-cpu0.c         | 17 ++--------
 drivers/cpufreq/cpufreq.c              | 57 +++++++++++++++++++++++++++-------
 drivers/cpufreq/cris-artpec3-cpufreq.c | 18 ++---------
 drivers/cpufreq/cris-etraxfs-cpufreq.c | 17 ++--------
 drivers/cpufreq/davinci-cpufreq.c      | 16 ++--------
 drivers/cpufreq/dbx500-cpufreq.c       | 16 ++--------
 drivers/cpufreq/e_powersaver.c         | 17 ++--------
 drivers/cpufreq/elanfreq.c             | 34 ++------------------
 drivers/cpufreq/exynos-cpufreq.c       | 21 ++-----------
 drivers/cpufreq/exynos5440-cpufreq.c   | 21 +++----------
 drivers/cpufreq/ia64-acpi-cpufreq.c    | 21 ++-----------
 drivers/cpufreq/imx6q-cpufreq.c        | 17 ++--------
 drivers/cpufreq/kirkwood-cpufreq.c     | 19 ++----------
 drivers/cpufreq/longhaul.c             | 13 ++------
 drivers/cpufreq/loongson2_cpufreq.c    | 21 +++----------
 drivers/cpufreq/maple-cpufreq.c        | 16 +++-------
 drivers/cpufreq/omap-cpufreq.c         | 31 ++----------------
 drivers/cpufreq/p4-clockmod.c          | 18 +++--------
 drivers/cpufreq/pasemi-cpufreq.c       | 12 ++-----
 drivers/cpufreq/pmac32-cpufreq.c       | 12 ++-----
 drivers/cpufreq/pmac64-cpufreq.c       | 17 +++-------
 drivers/cpufreq/powernow-k6.c          | 35 +++------------------
 drivers/cpufreq/powernow-k7.c          | 22 +++----------
 drivers/cpufreq/powernow-k8.c          | 24 +++++---------
 drivers/cpufreq/ppc-corenet-cpufreq.c  | 15 +++------
 drivers/cpufreq/ppc_cbe_cpufreq.c      | 12 ++-----
 drivers/cpufreq/pxa2xx-cpufreq.c       | 13 ++------
 drivers/cpufreq/pxa3xx-cpufreq.c       | 17 ++--------
 drivers/cpufreq/s3c2416-cpufreq.c      | 17 +++-------
 drivers/cpufreq/s3c64xx-cpufreq.c      | 18 +++--------
 drivers/cpufreq/s5pv210-cpufreq.c      | 54 +++++++++-----------------------
 drivers/cpufreq/sa1100-cpufreq.c       | 24 +++-----------
 drivers/cpufreq/sa1110-cpufreq.c       | 26 +++-------------
 drivers/cpufreq/sc520_freq.c           | 19 ++----------
 drivers/cpufreq/sparc-us2e-cpufreq.c   | 21 ++-----------
 drivers/cpufreq/sparc-us3-cpufreq.c    | 23 ++------------
 drivers/cpufreq/spear-cpufreq.c        | 12 +++----
 drivers/cpufreq/speedstep-centrino.c   | 27 +++++-----------
 drivers/cpufreq/speedstep-ich.c        | 24 ++++----------
 drivers/cpufreq/speedstep-smi.c        | 20 +++---------
 drivers/cpufreq/tegra-cpufreq.c        | 12 ++-----
 include/linux/cpufreq.h                |  4 ++-
 50 files changed, 242 insertions(+), 759 deletions(-)

diff --git a/Documentation/cpu-freq/cpu-drivers.txt b/Documentation/cpu-freq/cpu-drivers.txt
index 40282e617913..8b1a4451422e 100644
--- a/Documentation/cpu-freq/cpu-drivers.txt
+++ b/Documentation/cpu-freq/cpu-drivers.txt
@@ -23,8 +23,8 @@ Contents:
 1.1  Initialization
 1.2  Per-CPU Initialization
 1.3  verify
-1.4  target or setpolicy?
-1.5  target
+1.4  target/target_index or setpolicy?
+1.5  target/target_index
 1.6  setpolicy
 2.   Frequency Table Helpers
 
@@ -56,7 +56,8 @@ cpufreq_driver.init -		A pointer to the per-CPU initialization
 cpufreq_driver.verify -		A pointer to a "verification" function.
 
 cpufreq_driver.setpolicy _or_ 
-cpufreq_driver.target -		See below on the differences.
+cpufreq_driver.target/
+target_index		-	See below on the differences.
 
 And optionally
 
@@ -66,7 +67,7 @@ cpufreq_driver.resume -		A pointer to a per-CPU resume function
 				which is called with interrupts disabled
 				and _before_ the pre-suspend frequency
 				and/or policy is restored by a call to
-				->target or ->setpolicy.
+				->target/target_index or ->setpolicy.
 
 cpufreq_driver.attr -		A pointer to a NULL-terminated list of
 				"struct freq_attr" which allow to
@@ -103,8 +104,8 @@ policy->governor		must contain the "default policy" for
 				this CPU. A few moments later,
 				cpufreq_driver.verify and either
 				cpufreq_driver.setpolicy or
-				cpufreq_driver.target is called with
-				these values.
+				cpufreq_driver.target/target_index is called
+				with these values.
 
 For setting some of these values (cpuinfo.min[max]_freq, policy->min[max]), the
 frequency table helpers might be helpful. See the section 2 for more information
@@ -133,20 +134,28 @@ range) is within policy->min and policy->max. If necessary, increase
 policy->max first, and only if this is no solution, decrease policy->min.
 
 
-1.4 target or setpolicy?
+1.4 target/target_index or setpolicy?
 ----------------------------
 
 Most cpufreq drivers or even most cpu frequency scaling algorithms 
 only allow the CPU to be set to one frequency. For these, you use the
-->target call.
+->target/target_index call.
 
 Some cpufreq-capable processors switch the frequency between certain
 limits on their own. These shall use the ->setpolicy call
 
 
-1.4. target
+1.4. target/target_index
 -------------
 
+The target_index call has two arguments: struct cpufreq_policy *policy,
+and unsigned int index (into the exposed frequency table).
+
+The CPUfreq driver must set the new frequency when called here. The
+actual frequency must be determined by freq_table[index].frequency.
+
+Deprecated:
+----------
 The target call has three arguments: struct cpufreq_policy *policy,
 unsigned int target_frequency, unsigned int relation.
 
diff --git a/Documentation/cpu-freq/governors.txt b/Documentation/cpu-freq/governors.txt
index 219970ba54b7..77ec21574fb1 100644
--- a/Documentation/cpu-freq/governors.txt
+++ b/Documentation/cpu-freq/governors.txt
@@ -40,7 +40,7 @@ Most cpufreq drivers (in fact, all except one, longrun) or even most
 cpu frequency scaling algorithms only offer the CPU to be set to one
 frequency. In order to offer dynamic frequency scaling, the cpufreq
 core must be able to tell these drivers of a "target frequency". So
-these specific drivers will be transformed to offer a "->target"
+these specific drivers will be transformed to offer a "->target/target_index"
 call instead of the existing "->setpolicy" call. For "longrun", all
 stays the same, though.
 
@@ -71,7 +71,7 @@ CPU can be set to switch independently	 |	   CPU can only be set
 		    /			       the limits of policy->{min,max}
 		   /			            \
 		  /				     \
-	Using the ->setpolicy call,		 Using the ->target call,
+	Using the ->setpolicy call,		 Using the ->target/target_index call,
 	    the limits and the			  the frequency closest
 	     "policy" is set.			  to target_freq is set.
 						  It is assured that it
diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c
index cb4b2ca3cf6b..d4ea142c4edd 100644
--- a/arch/arm/mach-sa1100/generic.c
+++ b/arch/arm/mach-sa1100/generic.c
@@ -62,26 +62,6 @@ struct cpufreq_frequency_table sa11x0_freq_table[NR_FREQS+1] = {
 	{ .frequency = CPUFREQ_TABLE_END, },
 };
 
-/* rounds up(!)  */
-unsigned int sa11x0_freq_to_ppcr(unsigned int khz)
-{
-	int i;
-
-	for (i = 0; i < NR_FREQS; i++)
-		if (sa11x0_freq_table[i].frequency >= khz)
-			break;
-
-	return i;
-}
-
-unsigned int sa11x0_ppcr_to_freq(unsigned int idx)
-{
-	unsigned int freq = 0;
-	if (idx < NR_FREQS)
-		freq = sa11x0_freq_table[idx].frequency;
-	return freq;
-}
-
 unsigned int sa11x0_getspeed(unsigned int cpu)
 {
 	if (cpu)
diff --git a/arch/arm/mach-sa1100/generic.h b/arch/arm/mach-sa1100/generic.h
index cbdfae744dc5..0d92e119b36b 100644
--- a/arch/arm/mach-sa1100/generic.h
+++ b/arch/arm/mach-sa1100/generic.h
@@ -21,9 +21,7 @@ extern void sa1110_mb_enable(void);
 extern void sa1110_mb_disable(void);
 
 extern struct cpufreq_frequency_table sa11x0_freq_table[];
-extern unsigned int sa11x0_freq_to_ppcr(unsigned int khz);
 extern unsigned int sa11x0_getspeed(unsigned int cpu);
-extern unsigned int sa11x0_ppcr_to_freq(unsigned int idx);
 
 struct flash_platform_data;
 struct resource;
diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index a1717d7367c1..889cec0a9022 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -424,17 +424,17 @@ static unsigned int check_freqs(const struct cpumask *mask, unsigned int freq,
 }
 
 static int acpi_cpufreq_target(struct cpufreq_policy *policy,
-			       unsigned int target_freq, unsigned int relation)
+			       unsigned int index)
 {
 	struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu);
 	struct acpi_processor_performance *perf;
 	struct cpufreq_freqs freqs;
 	struct drv_cmd cmd;
-	unsigned int next_state = 0; /* Index into freq_table */
 	unsigned int next_perf_state = 0; /* Index into perf table */
 	int result = 0;
 
-	pr_debug("acpi_cpufreq_target %d (%d)\n", target_freq, policy->cpu);
+	pr_debug("acpi_cpufreq_target %d (%d)\n",
+			data->freq_table[index].frequency, policy->cpu);
 
 	if (unlikely(data == NULL ||
 	     data->acpi_data == NULL || data->freq_table == NULL)) {
@@ -442,16 +442,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy,
 	}
 
 	perf = data->acpi_data;
-	result = cpufreq_frequency_table_target(policy,
-						data->freq_table,
-						target_freq,
-						relation, &next_state);
-	if (unlikely(result)) {
-		result = -ENODEV;
-		goto out;
-	}
-
-	next_perf_state = data->freq_table[next_state].driver_data;
+	next_perf_state = data->freq_table[index].driver_data;
 	if (perf->state == next_perf_state) {
 		if (unlikely(data->resume)) {
 			pr_debug("Called after resume, resetting to P%d\n",
@@ -493,7 +484,7 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy,
 		cmd.mask = cpumask_of(policy->cpu);
 
 	freqs.old = perf->states[perf->state].core_frequency * 1000;
-	freqs.new = data->freq_table[next_state].frequency;
+	freqs.new = data->freq_table[index].frequency;
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
 
 	drv_write(&cmd);
@@ -923,7 +914,7 @@ static struct freq_attr *acpi_cpufreq_attr[] = {
 
 static struct cpufreq_driver acpi_cpufreq_driver = {
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= acpi_cpufreq_target,
+	.target_index	= acpi_cpufreq_target,
 	.bios_limit	= acpi_processor_get_bios_limit,
 	.init		= acpi_cpufreq_cpu_init,
 	.exit		= acpi_cpufreq_cpu_exit,
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index 086f7c17ff58..163e3378fe17 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -49,28 +49,21 @@ static unsigned int bL_cpufreq_get(unsigned int cpu)
 
 /* Set clock frequency */
 static int bL_cpufreq_set_target(struct cpufreq_policy *policy,
-		unsigned int target_freq, unsigned int relation)
+		unsigned int index)
 {
 	struct cpufreq_freqs freqs;
-	u32 cpu = policy->cpu, freq_tab_idx, cur_cluster;
+	u32 cpu = policy->cpu, cur_cluster;
 	int ret = 0;
 
 	cur_cluster = cpu_to_cluster(policy->cpu);
 
 	freqs.old = bL_cpufreq_get(policy->cpu);
-
-	/* Determine valid target frequency using freq_table */
-	cpufreq_frequency_table_target(policy, freq_table[cur_cluster],
-			target_freq, relation, &freq_tab_idx);
-	freqs.new = freq_table[cur_cluster][freq_tab_idx].frequency;
+	freqs.new = freq_table[cur_cluster][index].frequency;
 
 	pr_debug("%s: cpu: %d, cluster: %d, oldfreq: %d, target freq: %d, new freq: %d\n",
-			__func__, cpu, cur_cluster, freqs.old, target_freq,
+			__func__, cpu, cur_cluster, freqs.old, freqs.new,
 			freqs.new);
 
-	if (freqs.old == freqs.new)
-		return 0;
-
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
 
 	ret = clk_set_rate(clk[cur_cluster], freqs.new * 1000);
@@ -200,7 +193,7 @@ static struct cpufreq_driver bL_cpufreq_driver = {
 	.flags			= CPUFREQ_STICKY |
 					CPUFREQ_HAVE_GOVERNOR_PER_POLICY,
 	.verify			= cpufreq_generic_frequency_table_verify,
-	.target			= bL_cpufreq_set_target,
+	.target_index		= bL_cpufreq_set_target,
 	.get			= bL_cpufreq_get,
 	.init			= bL_cpufreq_init,
 	.exit			= bL_cpufreq_exit,
diff --git a/drivers/cpufreq/at32ap-cpufreq.c b/drivers/cpufreq/at32ap-cpufreq.c
index 7439deddd5cf..81d07527bde6 100644
--- a/drivers/cpufreq/at32ap-cpufreq.c
+++ b/drivers/cpufreq/at32ap-cpufreq.c
@@ -35,25 +35,12 @@ static unsigned int at32_get_speed(unsigned int cpu)
 static unsigned int	ref_freq;
 static unsigned long	loops_per_jiffy_ref;
 
-static int at32_set_target(struct cpufreq_policy *policy,
-			  unsigned int target_freq,
-			  unsigned int relation)
+static int at32_set_target(struct cpufreq_policy *policy, unsigned int index)
 {
 	struct cpufreq_freqs freqs;
-	long freq;
-
-	/* Convert target_freq from kHz to Hz */
-	freq = clk_round_rate(cpuclk, target_freq * 1000);
-
-	/* Check if policy->min <= new_freq <= policy->max */
-	if(freq < (policy->min * 1000) || freq > (policy->max * 1000))
-		return -EINVAL;
-
-	pr_debug("cpufreq: requested frequency %u Hz\n", target_freq * 1000);
 
 	freqs.old = at32_get_speed(0);
-	freqs.new = (freq + 500) / 1000;
-	freqs.flags = 0;
+	freqs.new = freq_table[index].frequency;
 
 	if (!ref_freq) {
 		ref_freq = freqs.old;
@@ -64,13 +51,13 @@ static int at32_set_target(struct cpufreq_policy *policy,
 	if (freqs.old < freqs.new)
 		boot_cpu_data.loops_per_jiffy = cpufreq_scale(
 				loops_per_jiffy_ref, ref_freq, freqs.new);
-	clk_set_rate(cpuclk, freq);
+	clk_set_rate(cpuclk, freqs.new * 1000);
 	if (freqs.new < freqs.old)
 		boot_cpu_data.loops_per_jiffy = cpufreq_scale(
 				loops_per_jiffy_ref, ref_freq, freqs.new);
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
 
-	pr_debug("cpufreq: set frequency %lu Hz\n", freq);
+	pr_debug("cpufreq: set frequency %u Hz\n", freqs.new * 1000);
 
 	return 0;
 }
@@ -139,7 +126,7 @@ static struct cpufreq_driver at32_driver = {
 	.name		= "at32ap",
 	.init		= at32_cpufreq_driver_init,
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= at32_set_target,
+	.target_index	= at32_set_target,
 	.get		= at32_get_speed,
 	.flags		= CPUFREQ_STICKY,
 };
diff --git a/drivers/cpufreq/blackfin-cpufreq.c b/drivers/cpufreq/blackfin-cpufreq.c
index 0bc9e8c2c79b..12528b28d45d 100644
--- a/drivers/cpufreq/blackfin-cpufreq.c
+++ b/drivers/cpufreq/blackfin-cpufreq.c
@@ -127,14 +127,11 @@ unsigned long cpu_set_cclk(int cpu, unsigned long new)
 }
 #endif
 
-static int bfin_target(struct cpufreq_policy *policy,
-			unsigned int target_freq, unsigned int relation)
+static int bfin_target(struct cpufreq_policy *policy, unsigned int index)
 {
 #ifndef CONFIG_BF60x
 	unsigned int plldiv;
 #endif
-	unsigned int index;
-	unsigned long cclk_hz;
 	struct cpufreq_freqs freqs;
 	static unsigned long lpj_ref;
 	static unsigned int  lpj_ref_freq;
@@ -144,17 +141,11 @@ static int bfin_target(struct cpufreq_policy *policy,
 	cycles_t cycles;
 #endif
 
-	if (cpufreq_frequency_table_target(policy, bfin_freq_table, target_freq,
-				relation, &index))
-		return -EINVAL;
-
-	cclk_hz = bfin_freq_table[index].frequency;
-
 	freqs.old = bfin_getfreq_khz(0);
-	freqs.new = cclk_hz;
+	freqs.new = bfin_freq_table[index].frequency;
 
 	pr_debug("cpufreq: changing cclk to %lu; target = %u, oldfreq = %u\n",
-			cclk_hz, target_freq, freqs.old);
+			freqs.new, freqs.new, freqs.old);
 
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
 #ifndef CONFIG_BF60x
@@ -209,7 +200,7 @@ static int __bfin_cpu_init(struct cpufreq_policy *policy)
 
 static struct cpufreq_driver bfin_driver = {
 	.verify = cpufreq_generic_frequency_table_verify,
-	.target = bfin_target,
+	.target_index = bfin_target,
 	.get = bfin_getfreq_khz,
 	.init = __bfin_cpu_init,
 	.exit = cpufreq_generic_exit,
diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
index 33ab6504c447..4dbe7efd86e5 100644
--- a/drivers/cpufreq/cpufreq-cpu0.c
+++ b/drivers/cpufreq/cpufreq-cpu0.c
@@ -35,24 +35,14 @@ static unsigned int cpu0_get_speed(unsigned int cpu)
 	return clk_get_rate(cpu_clk) / 1000;
 }
 
-static int cpu0_set_target(struct cpufreq_policy *policy,
-			   unsigned int target_freq, unsigned int relation)
+static int cpu0_set_target(struct cpufreq_policy *policy, unsigned int index)
 {
 	struct cpufreq_freqs freqs;
 	struct dev_pm_opp *opp;
 	unsigned long volt = 0, volt_old = 0, tol = 0;
 	long freq_Hz, freq_exact;
-	unsigned int index;
 	int ret;
 
-	ret = cpufreq_frequency_table_target(policy, freq_table, target_freq,
-					     relation, &index);
-	if (ret) {
-		pr_err("failed to match target freqency %d: %d\n",
-		       target_freq, ret);
-		return ret;
-	}
-
 	freq_Hz = clk_round_rate(cpu_clk, freq_table[index].frequency * 1000);
 	if (freq_Hz < 0)
 		freq_Hz = freq_table[index].frequency * 1000;
@@ -60,9 +50,6 @@ static int cpu0_set_target(struct cpufreq_policy *policy,
 	freqs.new = freq_Hz / 1000;
 	freqs.old = clk_get_rate(cpu_clk) / 1000;
 
-	if (freqs.old == freqs.new)
-		return 0;
-
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
 
 	if (!IS_ERR(cpu_reg)) {
@@ -128,7 +115,7 @@ static int cpu0_cpufreq_init(struct cpufreq_policy *policy)
 static struct cpufreq_driver cpu0_cpufreq_driver = {
 	.flags = CPUFREQ_STICKY,
 	.verify = cpufreq_generic_frequency_table_verify,
-	.target = cpu0_set_target,
+	.target_index = cpu0_set_target,
 	.get = cpu0_get_speed,
 	.init = cpu0_cpufreq_init,
 	.exit = cpufreq_generic_exit,
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index ec391d7f010b..87ed83a6c894 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -47,6 +47,11 @@ static LIST_HEAD(cpufreq_policy_list);
 static DEFINE_PER_CPU(char[CPUFREQ_NAME_LEN], cpufreq_cpu_governor);
 #endif
 
+static inline bool has_target(void)
+{
+	return cpufreq_driver->target_index || cpufreq_driver->target;
+}
+
 /*
  * cpu_policy_rwsem is a per CPU reader-writer semaphore designed to cure
  * all cpufreq/hotplug/workqueue/etc related lock issues.
@@ -392,7 +397,7 @@ static int cpufreq_parse_governor(char *str_governor, unsigned int *policy,
 			*policy = CPUFREQ_POLICY_POWERSAVE;
 			err = 0;
 		}
-	} else if (cpufreq_driver->target) {
+	} else if (has_target()) {
 		struct cpufreq_governor *t;
 
 		mutex_lock(&cpufreq_governor_mutex);
@@ -550,7 +555,7 @@ static ssize_t show_scaling_available_governors(struct cpufreq_policy *policy,
 	ssize_t i = 0;
 	struct cpufreq_governor *t;
 
-	if (!cpufreq_driver->target) {
+	if (!has_target()) {
 		i += sprintf(buf, "performance powersave");
 		goto out;
 	}
@@ -835,7 +840,7 @@ static int cpufreq_add_dev_interface(struct cpufreq_policy *policy,
 		if (ret)
 			goto err_out_kobj_put;
 	}
-	if (cpufreq_driver->target) {
+	if (has_target()) {
 		ret = sysfs_create_file(&policy->kobj, &scaling_cur_freq.attr);
 		if (ret)
 			goto err_out_kobj_put;
@@ -884,10 +889,10 @@ static int cpufreq_add_policy_cpu(struct cpufreq_policy *policy,
 				  unsigned int cpu, struct device *dev,
 				  bool frozen)
 {
-	int ret = 0, has_target = !!cpufreq_driver->target;
+	int ret = 0;
 	unsigned long flags;
 
-	if (has_target) {
+	if (has_target()) {
 		ret = __cpufreq_governor(policy, CPUFREQ_GOV_STOP);
 		if (ret) {
 			pr_err("%s: Failed to stop governor\n", __func__);
@@ -905,7 +910,7 @@ static int cpufreq_add_policy_cpu(struct cpufreq_policy *policy,
 
 	unlock_policy_rwsem_write(policy->cpu);
 
-	if (has_target) {
+	if (has_target()) {
 		if ((ret = __cpufreq_governor(policy, CPUFREQ_GOV_START)) ||
 			(ret = __cpufreq_governor(policy, CPUFREQ_GOV_LIMITS))) {
 			pr_err("%s: Failed to start governor\n", __func__);
@@ -1215,7 +1220,7 @@ static int __cpufreq_remove_dev_prepare(struct device *dev,
 		return -EINVAL;
 	}
 
-	if (cpufreq_driver->target) {
+	if (has_target()) {
 		ret = __cpufreq_governor(policy, CPUFREQ_GOV_STOP);
 		if (ret) {
 			pr_err("%s: Failed to stop governor\n", __func__);
@@ -1280,7 +1285,7 @@ static int __cpufreq_remove_dev_finish(struct device *dev,
 
 	/* If cpu is last user of policy, free policy */
 	if (cpus == 1) {
-		if (cpufreq_driver->target) {
+		if (has_target()) {
 			ret = __cpufreq_governor(policy,
 					CPUFREQ_GOV_POLICY_EXIT);
 			if (ret) {
@@ -1323,7 +1328,7 @@ static int __cpufreq_remove_dev_finish(struct device *dev,
 		if (!frozen)
 			cpufreq_policy_free(policy);
 	} else {
-		if (cpufreq_driver->target) {
+		if (has_target()) {
 			if ((ret = __cpufreq_governor(policy, CPUFREQ_GOV_START)) ||
 					(ret = __cpufreq_governor(policy, CPUFREQ_GOV_LIMITS))) {
 				pr_err("%s: Failed to start governor\n",
@@ -1694,12 +1699,41 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy,
 	pr_debug("target for CPU %u: %u kHz, relation %u, requested %u kHz\n",
 			policy->cpu, target_freq, relation, old_target_freq);
 
+	/*
+	 * This might look like a redundant call as we are checking it again
+	 * after finding index. But it is left intentionally for cases where
+	 * exactly same freq is called again and so we can save on few function
+	 * calls.
+	 */
 	if (target_freq == policy->cur)
 		return 0;
 
 	if (cpufreq_driver->target)
 		retval = cpufreq_driver->target(policy, target_freq, relation);
+	else if (cpufreq_driver->target_index) {
+		struct cpufreq_frequency_table *freq_table;
+		int index;
 
+		freq_table = cpufreq_frequency_get_table(policy->cpu);
+		if (unlikely(!freq_table)) {
+			pr_err("%s: Unable to find freq_table\n", __func__);
+			goto out;
+		}
+
+		retval = cpufreq_frequency_table_target(policy, freq_table,
+				target_freq, relation, &index);
+		if (unlikely(retval)) {
+			pr_err("%s: Unable to find matching freq\n", __func__);
+			goto out;
+		}
+
+		if (freq_table[index].frequency == policy->cur)
+			retval = 0;
+		else
+			retval = cpufreq_driver->target_index(policy, index);
+	}
+
+out:
 	return retval;
 }
 EXPORT_SYMBOL_GPL(__cpufreq_driver_target);
@@ -2025,7 +2059,7 @@ int cpufreq_update_policy(unsigned int cpu)
 			pr_debug("Driver did not initialize current freq");
 			policy->cur = new_policy.cur;
 		} else {
-			if (policy->cur != new_policy.cur && cpufreq_driver->target)
+			if (policy->cur != new_policy.cur && has_target())
 				cpufreq_out_of_sync(cpu, policy->cur,
 								new_policy.cur);
 		}
@@ -2103,7 +2137,8 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
 		return -ENODEV;
 
 	if (!driver_data || !driver_data->verify || !driver_data->init ||
-	    ((!driver_data->setpolicy) && (!driver_data->target)))
+	    !(driver_data->setpolicy || driver_data->target_index ||
+		    driver_data->target))
 		return -EINVAL;
 
 	pr_debug("trying to register driver %s\n", driver_data->name);
diff --git a/drivers/cpufreq/cris-artpec3-cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c
index 05fdc7e40257..841857cf1562 100644
--- a/drivers/cpufreq/cris-artpec3-cpufreq.c
+++ b/drivers/cpufreq/cris-artpec3-cpufreq.c
@@ -27,8 +27,7 @@ static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu)
 	return clk_ctrl.pll ? 200000 : 6000;
 }
 
-static void cris_freq_set_cpu_state(struct cpufreq_policy *policy,
-		unsigned int state)
+static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state)
 {
 	struct cpufreq_freqs freqs;
 	reg_clkgen_rw_clk_ctrl clk_ctrl;
@@ -52,19 +51,6 @@ static void cris_freq_set_cpu_state(struct cpufreq_policy *policy,
 	local_irq_enable();
 
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-};
-
-static int cris_freq_target(struct cpufreq_policy *policy,
-			    unsigned int target_freq,
-			    unsigned int relation)
-{
-	unsigned int newstate = 0;
-
-	if (cpufreq_frequency_table_target(policy, cris_freq_table,
-			target_freq, relation, &newstate))
-		return -EINVAL;
-
-	cris_freq_set_cpu_state(policy, newstate);
 
 	return 0;
 }
@@ -77,7 +63,7 @@ static int cris_freq_cpu_init(struct cpufreq_policy *policy)
 static struct cpufreq_driver cris_freq_driver = {
 	.get	= cris_freq_get_cpu_frequency,
 	.verify	= cpufreq_generic_frequency_table_verify,
-	.target	= cris_freq_target,
+	.target_index = cris_freq_target,
 	.init	= cris_freq_cpu_init,
 	.exit	= cpufreq_generic_exit,
 	.name	= "cris_freq",
diff --git a/drivers/cpufreq/cris-etraxfs-cpufreq.c b/drivers/cpufreq/cris-etraxfs-cpufreq.c
index fac2b26932dd..c58811abd961 100644
--- a/drivers/cpufreq/cris-etraxfs-cpufreq.c
+++ b/drivers/cpufreq/cris-etraxfs-cpufreq.c
@@ -27,8 +27,7 @@ static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu)
 	return clk_ctrl.pll ? 200000 : 6000;
 }
 
-static void cris_freq_set_cpu_state(struct cpufreq_policy *policy,
-		unsigned int state)
+static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state)
 {
 	struct cpufreq_freqs freqs;
 	reg_config_rw_clk_ctrl clk_ctrl;
@@ -52,18 +51,6 @@ static void cris_freq_set_cpu_state(struct cpufreq_policy *policy,
 	local_irq_enable();
 
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-};
-
-static int cris_freq_target(struct cpufreq_policy *policy,
-			    unsigned int target_freq, unsigned int relation)
-{
-	unsigned int newstate = 0;
-
-	if (cpufreq_frequency_table_target
-	    (policy, cris_freq_table, target_freq, relation, &newstate))
-		return -EINVAL;
-
-	cris_freq_set_cpu_state(policy, newstate);
 
 	return 0;
 }
@@ -76,7 +63,7 @@ static int cris_freq_cpu_init(struct cpufreq_policy *policy)
 static struct cpufreq_driver cris_freq_driver = {
 	.get = cris_freq_get_cpu_frequency,
 	.verify = cpufreq_generic_frequency_table_verify,
-	.target = cris_freq_target,
+	.target_index = cris_freq_target,
 	.init = cris_freq_cpu_init,
 	.exit = cpufreq_generic_exit,
 	.name = "cris_freq",
diff --git a/drivers/cpufreq/davinci-cpufreq.c b/drivers/cpufreq/davinci-cpufreq.c
index 972583baf9e8..1f5d8a569c77 100644
--- a/drivers/cpufreq/davinci-cpufreq.c
+++ b/drivers/cpufreq/davinci-cpufreq.c
@@ -66,28 +66,18 @@ static unsigned int davinci_getspeed(unsigned int cpu)
 	return clk_get_rate(cpufreq.armclk) / 1000;
 }
 
-static int davinci_target(struct cpufreq_policy *policy,
-				unsigned int target_freq, unsigned int relation)
+static int davinci_target(struct cpufreq_policy *policy, unsigned int idx)
 {
 	int ret = 0;
-	unsigned int idx;
 	struct cpufreq_freqs freqs;
 	struct davinci_cpufreq_config *pdata = cpufreq.dev->platform_data;
 	struct clk *armclk = cpufreq.armclk;
 
 	freqs.old = davinci_getspeed(0);
-	freqs.new = clk_round_rate(armclk, target_freq * 1000) / 1000;
-
-	if (freqs.old == freqs.new)
-		return ret;
+	freqs.new = pdata->freq_table[idx].frequency;
 
 	dev_dbg(cpufreq.dev, "transition: %u --> %u\n", freqs.old, freqs.new);
 
-	ret = cpufreq_frequency_table_target(policy, pdata->freq_table,
-						freqs.new, relation, &idx);
-	if (ret)
-		return -EINVAL;
-
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
 
 	/* if moving to higher frequency, up the voltage beforehand */
@@ -148,7 +138,7 @@ static int davinci_cpu_init(struct cpufreq_policy *policy)
 static struct cpufreq_driver davinci_driver = {
 	.flags		= CPUFREQ_STICKY,
 	.verify		= davinci_verify_speed,
-	.target		= davinci_target,
+	.target_index	= davinci_target,
 	.get		= davinci_getspeed,
 	.init		= davinci_cpu_init,
 	.exit		= cpufreq_generic_exit,
diff --git a/drivers/cpufreq/dbx500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c
index a60f7693c18e..238b16976be1 100644
--- a/drivers/cpufreq/dbx500-cpufreq.c
+++ b/drivers/cpufreq/dbx500-cpufreq.c
@@ -20,23 +20,13 @@ static struct cpufreq_frequency_table *freq_table;
 static struct clk *armss_clk;
 
 static int dbx500_cpufreq_target(struct cpufreq_policy *policy,
-				unsigned int target_freq,
-				unsigned int relation)
+				unsigned int index)
 {
 	struct cpufreq_freqs freqs;
-	unsigned int idx;
 	int ret;
 
-	/* Lookup the next frequency */
-	if (cpufreq_frequency_table_target(policy, freq_table, target_freq,
-					relation, &idx))
-		return -EINVAL;
-
 	freqs.old = policy->cur;
-	freqs.new = freq_table[idx].frequency;
-
-	if (freqs.old == freqs.new)
-		return 0;
+	freqs.new = freq_table[index].frequency;
 
 	/* pre-change notification */
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
@@ -80,7 +70,7 @@ static int dbx500_cpufreq_init(struct cpufreq_policy *policy)
 static struct cpufreq_driver dbx500_cpufreq_driver = {
 	.flags  = CPUFREQ_STICKY | CPUFREQ_CONST_LOOPS,
 	.verify = cpufreq_generic_frequency_table_verify,
-	.target = dbx500_cpufreq_target,
+	.target_index = dbx500_cpufreq_target,
 	.get    = dbx500_cpufreq_getspeed,
 	.init   = dbx500_cpufreq_init,
 	.name   = "DBX500",
diff --git a/drivers/cpufreq/e_powersaver.c b/drivers/cpufreq/e_powersaver.c
index 2c11ce3c67bd..b39c4ef60a7a 100644
--- a/drivers/cpufreq/e_powersaver.c
+++ b/drivers/cpufreq/e_powersaver.c
@@ -168,12 +168,9 @@ postchange:
 	return err;
 }
 
-static int eps_target(struct cpufreq_policy *policy,
-			       unsigned int target_freq,
-			       unsigned int relation)
+static int eps_target(struct cpufreq_policy *policy, unsigned int index)
 {
 	struct eps_cpu_data *centaur;
-	unsigned int newstate = 0;
 	unsigned int cpu = policy->cpu;
 	unsigned int dest_state;
 	int ret;
@@ -182,16 +179,8 @@ static int eps_target(struct cpufreq_policy *policy,
 		return -ENODEV;
 	centaur = eps_cpu[cpu];
 
-	if (unlikely(cpufreq_frequency_table_target(policy,
-			&eps_cpu[cpu]->freq_table[0],
-			target_freq,
-			relation,
-			&newstate))) {
-		return -EINVAL;
-	}
-
 	/* Make frequency transition */
-	dest_state = centaur->freq_table[newstate].driver_data & 0xffff;
+	dest_state = centaur->freq_table[index].driver_data & 0xffff;
 	ret = eps_set_state(centaur, policy, dest_state);
 	if (ret)
 		printk(KERN_ERR "eps: Timeout!\n");
@@ -418,7 +407,7 @@ static int eps_cpu_exit(struct cpufreq_policy *policy)
 
 static struct cpufreq_driver eps_driver = {
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= eps_target,
+	.target_index	= eps_target,
 	.init		= eps_cpu_init,
 	.exit		= eps_cpu_exit,
 	.get		= eps_get,
diff --git a/drivers/cpufreq/elanfreq.c b/drivers/cpufreq/elanfreq.c
index d91a645a27ae..4ab41539514f 100644
--- a/drivers/cpufreq/elanfreq.c
+++ b/drivers/cpufreq/elanfreq.c
@@ -105,20 +105,8 @@ static unsigned int elanfreq_get_cpu_frequency(unsigned int cpu)
 }
 
 
-/**
- *	elanfreq_set_cpu_frequency: Change the CPU core frequency
- *	@cpu: cpu number
- *	@freq: frequency in kHz
- *
- *	This function takes a frequency value and changes the CPU frequency
- *	according to this. Note that the frequency has to be checked by
- *	elanfreq_validatespeed() for correctness!
- *
- *	There is no return value.
- */
-
-static void elanfreq_set_cpu_state(struct cpufreq_policy *policy,
-		unsigned int state)
+static int elanfreq_target(struct cpufreq_policy *policy,
+			    unsigned int state)
 {
 	struct cpufreq_freqs    freqs;
 
@@ -162,25 +150,9 @@ static void elanfreq_set_cpu_state(struct cpufreq_policy *policy,
 	local_irq_enable();
 
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-};
-
-
-static int elanfreq_target(struct cpufreq_policy *policy,
-			    unsigned int target_freq,
-			    unsigned int relation)
-{
-	unsigned int newstate = 0;
-
-	if (cpufreq_frequency_table_target(policy, &elanfreq_table[0],
-				target_freq, relation, &newstate))
-		return -EINVAL;
-
-	elanfreq_set_cpu_state(policy, newstate);
 
 	return 0;
 }
-
-
 /*
  *	Module init and exit code
  */
@@ -237,7 +209,7 @@ __setup("elanfreq=", elanfreq_setup);
 static struct cpufreq_driver elanfreq_driver = {
 	.get		= elanfreq_get_cpu_frequency,
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= elanfreq_target,
+	.target_index	= elanfreq_target,
 	.init		= elanfreq_cpu_init,
 	.exit		= cpufreq_generic_exit,
 	.name		= "elanfreq",
diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index 3e4af676f43d..9982fcb82257 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -65,9 +65,6 @@ static int exynos_cpufreq_scale(unsigned int target_freq)
 	freqs.old = policy->cur;
 	freqs.new = target_freq;
 
-	if (freqs.new == freqs.old)
-		goto out;
-
 	/*
 	 * The policy max have been changed so that we cannot get proper
 	 * old_index with cpufreq_frequency_table_target(). Thus, ignore
@@ -151,13 +148,9 @@ out:
 	return ret;
 }
 
-static int exynos_target(struct cpufreq_policy *policy,
-			  unsigned int target_freq,
-			  unsigned int relation)
+static int exynos_target(struct cpufreq_policy *policy, unsigned int index)
 {
 	struct cpufreq_frequency_table *freq_table = exynos_info->freq_table;
-	unsigned int index;
-	unsigned int new_freq;
 	int ret = 0;
 
 	mutex_lock(&cpufreq_lock);
@@ -165,15 +158,7 @@ static int exynos_target(struct cpufreq_policy *policy,
 	if (frequency_locked)
 		goto out;
 
-	if (cpufreq_frequency_table_target(policy, freq_table,
-					   target_freq, relation, &index)) {
-		ret = -EINVAL;
-		goto out;
-	}
-
-	new_freq = freq_table[index].frequency;
-
-	ret = exynos_cpufreq_scale(new_freq);
+	ret = exynos_cpufreq_scale(freq_table[index].frequency);
 
 out:
 	mutex_unlock(&cpufreq_lock);
@@ -247,7 +232,7 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
 static struct cpufreq_driver exynos_driver = {
 	.flags		= CPUFREQ_STICKY,
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= exynos_target,
+	.target_index	= exynos_target,
 	.get		= exynos_getspeed,
 	.init		= exynos_cpufreq_cpu_init,
 	.exit		= cpufreq_generic_exit,
diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c
index 8ae5e2925bf1..1bf9b060d522 100644
--- a/drivers/cpufreq/exynos5440-cpufreq.c
+++ b/drivers/cpufreq/exynos5440-cpufreq.c
@@ -214,27 +214,17 @@ static unsigned int exynos_getspeed(unsigned int cpu)
 	return dvfs_info->cur_frequency;
 }
 
-static int exynos_target(struct cpufreq_policy *policy,
-			  unsigned int target_freq,
-			  unsigned int relation)
+static int exynos_target(struct cpufreq_policy *policy, unsigned int index)
 {
-	unsigned int index, tmp;
-	int ret = 0, i;
+	unsigned int tmp;
+	int i;
 	struct cpufreq_frequency_table *freq_table = dvfs_info->freq_table;
 
 	mutex_lock(&cpufreq_lock);
 
-	ret = cpufreq_frequency_table_target(policy, freq_table,
-					   target_freq, relation, &index);
-	if (ret)
-		goto out;
-
 	freqs.old = dvfs_info->cur_frequency;
 	freqs.new = freq_table[index].frequency;
 
-	if (freqs.old == freqs.new)
-		goto out;
-
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
 
 	/* Set the target frequency in all C0_3_PSTATE register */
@@ -245,9 +235,8 @@ static int exynos_target(struct cpufreq_policy *policy,
 
 		__raw_writel(tmp, dvfs_info->base + XMU_C0_3_PSTATE + i * 4);
 	}
-out:
 	mutex_unlock(&cpufreq_lock);
-	return ret;
+	return 0;
 }
 
 static void exynos_cpufreq_work(struct work_struct *work)
@@ -325,7 +314,7 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
 static struct cpufreq_driver exynos_driver = {
 	.flags		= CPUFREQ_STICKY,
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= exynos_target,
+	.target_index	= exynos_target,
 	.get		= exynos_getspeed,
 	.init		= exynos_cpufreq_cpu_init,
 	.exit		= cpufreq_generic_exit,
diff --git a/drivers/cpufreq/ia64-acpi-cpufreq.c b/drivers/cpufreq/ia64-acpi-cpufreq.c
index 90c6598415fd..4695fa22406a 100644
--- a/drivers/cpufreq/ia64-acpi-cpufreq.c
+++ b/drivers/cpufreq/ia64-acpi-cpufreq.c
@@ -227,26 +227,11 @@ acpi_cpufreq_get (
 static int
 acpi_cpufreq_target (
 	struct cpufreq_policy   *policy,
-	unsigned int target_freq,
-	unsigned int relation)
+	unsigned int index)
 {
-	struct cpufreq_acpi_io *data = acpi_io_data[policy->cpu];
-	unsigned int next_state = 0;
-	unsigned int result = 0;
-
-	pr_debug("acpi_cpufreq_setpolicy\n");
-
-	result = cpufreq_frequency_table_target(policy,
-			data->freq_table, target_freq, relation, &next_state);
-	if (result)
-		return (result);
-
-	result = processor_set_freq(data, policy, next_state);
-
-	return (result);
+	return processor_set_freq(acpi_io_data[policy->cpu], policy, index);
 }
 
-
 static int
 acpi_cpufreq_cpu_init (
 	struct cpufreq_policy   *policy)
@@ -379,7 +364,7 @@ acpi_cpufreq_cpu_exit (
 
 static struct cpufreq_driver acpi_cpufreq_driver = {
 	.verify 	= cpufreq_generic_frequency_table_verify,
-	.target 	= acpi_cpufreq_target,
+	.target_index	= acpi_cpufreq_target,
 	.get 		= acpi_cpufreq_get,
 	.init		= acpi_cpufreq_cpu_init,
 	.exit		= acpi_cpufreq_cpu_exit,
diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index be23892282e3..07af3b0de069 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -40,30 +40,17 @@ static unsigned int imx6q_get_speed(unsigned int cpu)
 	return clk_get_rate(arm_clk) / 1000;
 }
 
-static int imx6q_set_target(struct cpufreq_policy *policy,
-			    unsigned int target_freq, unsigned int relation)
+static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index)
 {
 	struct cpufreq_freqs freqs;
 	struct dev_pm_opp *opp;
 	unsigned long freq_hz, volt, volt_old;
-	unsigned int index;
 	int ret;
 
-	ret = cpufreq_frequency_table_target(policy, freq_table, target_freq,
-					     relation, &index);
-	if (ret) {
-		dev_err(cpu_dev, "failed to match target frequency %d: %d\n",
-			target_freq, ret);
-		return ret;
-	}
-
 	freqs.new = freq_table[index].frequency;
 	freq_hz = freqs.new * 1000;
 	freqs.old = clk_get_rate(arm_clk) / 1000;
 
-	if (freqs.old == freqs.new)
-		return 0;
-
 	rcu_read_lock();
 	opp = dev_pm_opp_find_freq_ceil(cpu_dev, &freq_hz);
 	if (IS_ERR(opp)) {
@@ -159,7 +146,7 @@ static int imx6q_cpufreq_init(struct cpufreq_policy *policy)
 
 static struct cpufreq_driver imx6q_cpufreq_driver = {
 	.verify = cpufreq_generic_frequency_table_verify,
-	.target = imx6q_set_target,
+	.target_index = imx6q_set_target,
 	.get = imx6q_get_speed,
 	.init = imx6q_cpufreq_init,
 	.exit = cpufreq_generic_exit,
diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c
index fff8653c8e9b..0ae4dd7e1f2d 100644
--- a/drivers/cpufreq/kirkwood-cpufreq.c
+++ b/drivers/cpufreq/kirkwood-cpufreq.c
@@ -55,8 +55,8 @@ static unsigned int kirkwood_cpufreq_get_cpu_frequency(unsigned int cpu)
 	return kirkwood_freq_table[0].frequency;
 }
 
-static void kirkwood_cpufreq_set_cpu_state(struct cpufreq_policy *policy,
-		unsigned int index)
+static int kirkwood_cpufreq_target(struct cpufreq_policy *policy,
+			    unsigned int index)
 {
 	struct cpufreq_freqs freqs;
 	unsigned int state = kirkwood_freq_table[index].driver_data;
@@ -100,19 +100,6 @@ static void kirkwood_cpufreq_set_cpu_state(struct cpufreq_policy *policy,
 		local_irq_enable();
 	}
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-};
-
-static int kirkwood_cpufreq_target(struct cpufreq_policy *policy,
-			    unsigned int target_freq,
-			    unsigned int relation)
-{
-	unsigned int index = 0;
-
-	if (cpufreq_frequency_table_target(policy, kirkwood_freq_table,
-				target_freq, relation, &index))
-		return -EINVAL;
-
-	kirkwood_cpufreq_set_cpu_state(policy, index);
 
 	return 0;
 }
@@ -126,7 +113,7 @@ static int kirkwood_cpufreq_cpu_init(struct cpufreq_policy *policy)
 static struct cpufreq_driver kirkwood_cpufreq_driver = {
 	.get	= kirkwood_cpufreq_get_cpu_frequency,
 	.verify	= cpufreq_generic_frequency_table_verify,
-	.target	= kirkwood_cpufreq_target,
+	.target_index = kirkwood_cpufreq_target,
 	.init	= kirkwood_cpufreq_cpu_init,
 	.exit	= cpufreq_generic_exit,
 	.name	= "kirkwood-cpufreq",
diff --git a/drivers/cpufreq/longhaul.c b/drivers/cpufreq/longhaul.c
index 14df4974fb45..45bafddfd8ea 100644
--- a/drivers/cpufreq/longhaul.c
+++ b/drivers/cpufreq/longhaul.c
@@ -626,21 +626,12 @@ static void longhaul_setup_voltagescaling(void)
 
 
 static int longhaul_target(struct cpufreq_policy *policy,
-			    unsigned int target_freq, unsigned int relation)
+			    unsigned int table_index)
 {
-	unsigned int table_index = 0;
 	unsigned int i;
 	unsigned int dir = 0;
 	u8 vid, current_vid;
 
-	if (cpufreq_frequency_table_target(policy, longhaul_table, target_freq,
-				relation, &table_index))
-		return -EINVAL;
-
-	/* Don't set same frequency again */
-	if (longhaul_index == table_index)
-		return 0;
-
 	if (!can_scale_voltage)
 		longhaul_setstate(policy, table_index);
 	else {
@@ -919,7 +910,7 @@ static int longhaul_cpu_init(struct cpufreq_policy *policy)
 
 static struct cpufreq_driver longhaul_driver = {
 	.verify	= cpufreq_generic_frequency_table_verify,
-	.target	= longhaul_target,
+	.target_index = longhaul_target,
 	.get	= longhaul_get,
 	.init	= longhaul_cpu_init,
 	.exit	= cpufreq_generic_exit,
diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c
index 2c8ec8e06449..41a8e2cdf940 100644
--- a/drivers/cpufreq/loongson2_cpufreq.c
+++ b/drivers/cpufreq/loongson2_cpufreq.c
@@ -53,11 +53,9 @@ static unsigned int loongson2_cpufreq_get(unsigned int cpu)
  * Here we notify other drivers of the proposed change and the final change.
  */
 static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
-				     unsigned int target_freq,
-				     unsigned int relation)
+				     unsigned int index)
 {
 	unsigned int cpu = policy->cpu;
-	unsigned int newstate = 0;
 	cpumask_t cpus_allowed;
 	struct cpufreq_freqs freqs;
 	unsigned int freq;
@@ -65,26 +63,17 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
 	cpus_allowed = current->cpus_allowed;
 	set_cpus_allowed_ptr(current, cpumask_of(cpu));
 
-	if (cpufreq_frequency_table_target
-	    (policy, &loongson2_clockmod_table[0], target_freq, relation,
-	     &newstate))
-		return -EINVAL;
-
 	freq =
 	    ((cpu_clock_freq / 1000) *
-	     loongson2_clockmod_table[newstate].driver_data) / 8;
-	if (freq < policy->min || freq > policy->max)
-		return -EINVAL;
+	     loongson2_clockmod_table[index].driver_data) / 8;
 
-	pr_debug("cpufreq: requested frequency %u Hz\n", target_freq * 1000);
+	pr_debug("cpufreq: requested frequency %u Hz\n",
+			loongson2_clockmod_table[index].frequency * 1000);
 
 	freqs.old = loongson2_cpufreq_get(cpu);
 	freqs.new = freq;
 	freqs.flags = 0;
 
-	if (freqs.new == freqs.old)
-		return 0;
-
 	/* notifiers */
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
 
@@ -145,7 +134,7 @@ static struct cpufreq_driver loongson2_cpufreq_driver = {
 	.name = "loongson2",
 	.init = loongson2_cpufreq_cpu_init,
 	.verify = cpufreq_generic_frequency_table_verify,
-	.target = loongson2_cpufreq_target,
+	.target_index = loongson2_cpufreq_target,
 	.get = loongson2_cpufreq_get,
 	.exit = loongson2_cpufreq_exit,
 	.attr = cpufreq_generic_attr,
diff --git a/drivers/cpufreq/maple-cpufreq.c b/drivers/cpufreq/maple-cpufreq.c
index eb1e1766baed..4e2da0874bfb 100644
--- a/drivers/cpufreq/maple-cpufreq.c
+++ b/drivers/cpufreq/maple-cpufreq.c
@@ -131,26 +131,18 @@ static int maple_scom_query_freq(void)
  */
 
 static int maple_cpufreq_target(struct cpufreq_policy *policy,
-	unsigned int target_freq, unsigned int relation)
+	unsigned int index)
 {
-	unsigned int newstate = 0;
 	struct cpufreq_freqs freqs;
 	int rc;
 
-	if (cpufreq_frequency_table_target(policy, maple_cpu_freqs,
-			target_freq, relation, &newstate))
-		return -EINVAL;
-
-	if (maple_pmode_cur == newstate)
-		return 0;
-
 	mutex_lock(&maple_switch_mutex);
 
 	freqs.old = maple_cpu_freqs[maple_pmode_cur].frequency;
-	freqs.new = maple_cpu_freqs[newstate].frequency;
+	freqs.new = maple_cpu_freqs[index].frequency;
 
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-	rc = maple_scom_switch_freq(newstate);
+	rc = maple_scom_switch_freq(index);
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
 
 	mutex_unlock(&maple_switch_mutex);
@@ -173,7 +165,7 @@ static struct cpufreq_driver maple_cpufreq_driver = {
 	.flags		= CPUFREQ_CONST_LOOPS,
 	.init		= maple_cpufreq_cpu_init,
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= maple_cpufreq_target,
+	.target_index	= maple_cpufreq_target,
 	.get		= maple_cpufreq_get_speed,
 	.attr		= cpufreq_generic_attr,
 };
diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index ac552d090463..b5512712298f 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -51,40 +51,15 @@ static unsigned int omap_getspeed(unsigned int cpu)
 	return rate;
 }
 
-static int omap_target(struct cpufreq_policy *policy,
-		       unsigned int target_freq,
-		       unsigned int relation)
+static int omap_target(struct cpufreq_policy *policy, unsigned int index)
 {
-	unsigned int i;
 	int r, ret = 0;
 	struct cpufreq_freqs freqs;
 	struct dev_pm_opp *opp;
 	unsigned long freq, volt = 0, volt_old = 0, tol = 0;
 
-	if (!freq_table) {
-		dev_err(mpu_dev, "%s: cpu%d: no freq table!\n", __func__,
-				policy->cpu);
-		return -EINVAL;
-	}
-
-	ret = cpufreq_frequency_table_target(policy, freq_table, target_freq,
-			relation, &i);
-	if (ret) {
-		dev_dbg(mpu_dev, "%s: cpu%d: no freq match for %d(ret=%d)\n",
-			__func__, policy->cpu, target_freq, ret);
-		return ret;
-	}
-	freqs.new = freq_table[i].frequency;
-	if (!freqs.new) {
-		dev_err(mpu_dev, "%s: cpu%d: no match for freq %d\n", __func__,
-			policy->cpu, target_freq);
-		return -EINVAL;
-	}
-
 	freqs.old = omap_getspeed(policy->cpu);
-
-	if (freqs.old == freqs.new && policy->cur == freqs.new)
-		return ret;
+	freqs.new = freq_table[index].frequency;
 
 	freq = freqs.new * 1000;
 	ret = clk_round_rate(mpu_clk, freq);
@@ -200,7 +175,7 @@ static int omap_cpu_exit(struct cpufreq_policy *policy)
 static struct cpufreq_driver omap_driver = {
 	.flags		= CPUFREQ_STICKY,
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= omap_target,
+	.target_index	= omap_target,
 	.get		= omap_getspeed,
 	.init		= omap_cpu_init,
 	.exit		= omap_cpu_exit,
diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c
index 6164c1cca504..3c23053afdfd 100644
--- a/drivers/cpufreq/p4-clockmod.c
+++ b/drivers/cpufreq/p4-clockmod.c
@@ -105,23 +105,13 @@ static struct cpufreq_frequency_table p4clockmod_table[] = {
 };
 
 
-static int cpufreq_p4_target(struct cpufreq_policy *policy,
-			     unsigned int target_freq,
-			     unsigned int relation)
+static int cpufreq_p4_target(struct cpufreq_policy *policy, unsigned int index)
 {
-	unsigned int    newstate = DC_RESV;
 	struct cpufreq_freqs freqs;
 	int i;
 
-	if (cpufreq_frequency_table_target(policy, &p4clockmod_table[0],
-				target_freq, relation, &newstate))
-		return -EINVAL;
-
 	freqs.old = cpufreq_p4_get(policy->cpu);
-	freqs.new = stock_freq * p4clockmod_table[newstate].driver_data / 8;
-
-	if (freqs.new == freqs.old)
-		return 0;
+	freqs.new = stock_freq * p4clockmod_table[index].driver_data / 8;
 
 	/* notifiers */
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
@@ -131,7 +121,7 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy,
 	 * Developer's Manual, Volume 3
 	 */
 	for_each_cpu(i, policy->cpus)
-		cpufreq_p4_setdc(i, p4clockmod_table[newstate].driver_data);
+		cpufreq_p4_setdc(i, p4clockmod_table[index].driver_data);
 
 	/* notifiers */
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
@@ -255,7 +245,7 @@ static unsigned int cpufreq_p4_get(unsigned int cpu)
 
 static struct cpufreq_driver p4clockmod_driver = {
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= cpufreq_p4_target,
+	.target_index	= cpufreq_p4_target,
 	.init		= cpufreq_p4_cpu_init,
 	.exit		= cpufreq_generic_exit,
 	.get		= cpufreq_p4_get,
diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c
index 1cca332728c3..17424ddc7f67 100644
--- a/drivers/cpufreq/pasemi-cpufreq.c
+++ b/drivers/cpufreq/pasemi-cpufreq.c
@@ -240,19 +240,11 @@ static int pas_cpufreq_cpu_exit(struct cpufreq_policy *policy)
 }
 
 static int pas_cpufreq_target(struct cpufreq_policy *policy,
-			      unsigned int target_freq,
-			      unsigned int relation)
+			      unsigned int pas_astate_new)
 {
 	struct cpufreq_freqs freqs;
-	int pas_astate_new;
 	int i;
 
-	cpufreq_frequency_table_target(policy,
-				       pas_freqs,
-				       target_freq,
-				       relation,
-				       &pas_astate_new);
-
 	freqs.old = policy->cur;
 	freqs.new = pas_freqs[pas_astate_new].frequency;
 
@@ -282,7 +274,7 @@ static struct cpufreq_driver pas_cpufreq_driver = {
 	.init		= pas_cpufreq_cpu_init,
 	.exit		= pas_cpufreq_cpu_exit,
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= pas_cpufreq_target,
+	.target_index	= pas_cpufreq_target,
 	.attr		= cpufreq_generic_attr,
 };
 
diff --git a/drivers/cpufreq/pmac32-cpufreq.c b/drivers/cpufreq/pmac32-cpufreq.c
index 6eac1e230078..05f705e1b7a2 100644
--- a/drivers/cpufreq/pmac32-cpufreq.c
+++ b/drivers/cpufreq/pmac32-cpufreq.c
@@ -374,17 +374,11 @@ static unsigned int pmac_cpufreq_get_speed(unsigned int cpu)
 }
 
 static int pmac_cpufreq_target(	struct cpufreq_policy *policy,
-					unsigned int target_freq,
-					unsigned int relation)
+					unsigned int index)
 {
-	unsigned int    newstate = 0;
 	int		rc;
 
-	if (cpufreq_frequency_table_target(policy, pmac_cpu_freqs,
-			target_freq, relation, &newstate))
-		return -EINVAL;
-
-	rc = do_set_cpu_speed(policy, newstate, 1);
+	rc = do_set_cpu_speed(policy, index, 1);
 
 	ppc_proc_freq = cur_freq * 1000ul;
 	return rc;
@@ -453,7 +447,7 @@ static int pmac_cpufreq_resume(struct cpufreq_policy *policy)
 
 static struct cpufreq_driver pmac_cpufreq_driver = {
 	.verify 	= cpufreq_generic_frequency_table_verify,
-	.target 	= pmac_cpufreq_target,
+	.target_index	= pmac_cpufreq_target,
 	.get		= pmac_cpufreq_get_speed,
 	.init		= pmac_cpufreq_cpu_init,
 	.suspend	= pmac_cpufreq_suspend,
diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c
index 5261b92d768b..234b598ce416 100644
--- a/drivers/cpufreq/pmac64-cpufreq.c
+++ b/drivers/cpufreq/pmac64-cpufreq.c
@@ -312,27 +312,18 @@ static int g5_pfunc_query_freq(void)
  * Common interface to the cpufreq core
  */
 
-static int g5_cpufreq_target(struct cpufreq_policy *policy,
-	unsigned int target_freq, unsigned int relation)
+static int g5_cpufreq_target(struct cpufreq_policy *policy, unsigned int index)
 {
-	unsigned int newstate = 0;
 	struct cpufreq_freqs freqs;
 	int rc;
 
-	if (cpufreq_frequency_table_target(policy, g5_cpu_freqs,
-			target_freq, relation, &newstate))
-		return -EINVAL;
-
-	if (g5_pmode_cur == newstate)
-		return 0;
-
 	mutex_lock(&g5_switch_mutex);
 
 	freqs.old = g5_cpu_freqs[g5_pmode_cur].frequency;
-	freqs.new = g5_cpu_freqs[newstate].frequency;
+	freqs.new = g5_cpu_freqs[index].frequency;
 
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-	rc = g5_switch_freq(newstate);
+	rc = g5_switch_freq(index);
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
 
 	mutex_unlock(&g5_switch_mutex);
@@ -355,7 +346,7 @@ static struct cpufreq_driver g5_cpufreq_driver = {
 	.flags		= CPUFREQ_CONST_LOOPS,
 	.init		= g5_cpufreq_cpu_init,
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= g5_cpufreq_target,
+	.target_index	= g5_cpufreq_target,
 	.get		= g5_cpufreq_get_speed,
 	.attr 		= cpufreq_generic_attr,
 };
diff --git a/drivers/cpufreq/powernow-k6.c b/drivers/cpufreq/powernow-k6.c
index eda17024a34a..643e7952cad3 100644
--- a/drivers/cpufreq/powernow-k6.c
+++ b/drivers/cpufreq/powernow-k6.c
@@ -63,12 +63,12 @@ static int powernow_k6_get_cpu_multiplier(void)
 
 
 /**
- * powernow_k6_set_state - set the PowerNow! multiplier
+ * powernow_k6_target - set the PowerNow! multiplier
  * @best_i: clock_ratio[best_i] is the target multiplier
  *
  *   Tries to change the PowerNow! multiplier
  */
-static void powernow_k6_set_state(struct cpufreq_policy *policy,
+static int powernow_k6_target(struct cpufreq_policy *policy,
 		unsigned int best_i)
 {
 	unsigned long outvalue = 0, invalue = 0;
@@ -77,7 +77,7 @@ static void powernow_k6_set_state(struct cpufreq_policy *policy,
 
 	if (clock_ratio[best_i].driver_data > max_multiplier) {
 		printk(KERN_ERR PFX "invalid target frequency\n");
-		return;
+		return -EINVAL;
 	}
 
 	freqs.old = busfreq * powernow_k6_get_cpu_multiplier();
@@ -100,31 +100,6 @@ static void powernow_k6_set_state(struct cpufreq_policy *policy,
 
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
 
-	return;
-}
-
-
-/**
- * powernow_k6_setpolicy - sets a new CPUFreq policy
- * @policy: new policy
- * @target_freq: the target frequency
- * @relation: how that frequency relates to achieved frequency
- *  (CPUFREQ_RELATION_L or CPUFREQ_RELATION_H)
- *
- * sets a new CPUFreq policy
- */
-static int powernow_k6_target(struct cpufreq_policy *policy,
-			       unsigned int target_freq,
-			       unsigned int relation)
-{
-	unsigned int newstate = 0;
-
-	if (cpufreq_frequency_table_target(policy, &clock_ratio[0],
-				target_freq, relation, &newstate))
-		return -EINVAL;
-
-	powernow_k6_set_state(policy, newstate);
-
 	return 0;
 }
 
@@ -161,7 +136,7 @@ static int powernow_k6_cpu_exit(struct cpufreq_policy *policy)
 	unsigned int i;
 	for (i = 0; i < 8; i++) {
 		if (i == max_multiplier)
-			powernow_k6_set_state(policy, i);
+			powernow_k6_target(policy, i);
 	}
 	cpufreq_frequency_table_put_attr(policy->cpu);
 	return 0;
@@ -176,7 +151,7 @@ static unsigned int powernow_k6_get(unsigned int cpu)
 
 static struct cpufreq_driver powernow_k6_driver = {
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= powernow_k6_target,
+	.target_index	= powernow_k6_target,
 	.init		= powernow_k6_cpu_init,
 	.exit		= powernow_k6_cpu_exit,
 	.get		= powernow_k6_get,
diff --git a/drivers/cpufreq/powernow-k7.c b/drivers/cpufreq/powernow-k7.c
index 44d345bad6fb..946708a1d745 100644
--- a/drivers/cpufreq/powernow-k7.c
+++ b/drivers/cpufreq/powernow-k7.c
@@ -248,7 +248,7 @@ static void change_VID(int vid)
 }
 
 
-static void change_speed(struct cpufreq_policy *policy, unsigned int index)
+static int powernow_target(struct cpufreq_policy *policy, unsigned int index)
 {
 	u8 fid, vid;
 	struct cpufreq_freqs freqs;
@@ -291,6 +291,8 @@ static void change_speed(struct cpufreq_policy *policy, unsigned int index)
 		local_irq_enable();
 
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
+
+	return 0;
 }
 
 
@@ -533,22 +535,6 @@ static int powernow_decode_bios(int maxfid, int startvid)
 }
 
 
-static int powernow_target(struct cpufreq_policy *policy,
-			    unsigned int target_freq,
-			    unsigned int relation)
-{
-	unsigned int newstate;
-
-	if (cpufreq_frequency_table_target(policy, powernow_table, target_freq,
-				relation, &newstate))
-		return -EINVAL;
-
-	change_speed(policy, newstate);
-
-	return 0;
-}
-
-
 /*
  * We use the fact that the bus frequency is somehow
  * a multiple of 100000/3 khz, then we compute sgtc according
@@ -694,7 +680,7 @@ static int powernow_cpu_exit(struct cpufreq_policy *policy)
 
 static struct cpufreq_driver powernow_driver = {
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= powernow_target,
+	.target_index	= powernow_target,
 	.get		= powernow_get,
 #ifdef CONFIG_X86_POWERNOW_K7_ACPI
 	.bios_limit	= acpi_processor_get_bios_limit,
diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c
index 298beb742ebb..62a1ce47d3df 100644
--- a/drivers/cpufreq/powernow-k8.c
+++ b/drivers/cpufreq/powernow-k8.c
@@ -977,20 +977,17 @@ static int transition_frequency_fidvid(struct powernow_k8_data *data,
 
 struct powernowk8_target_arg {
 	struct cpufreq_policy		*pol;
-	unsigned			targfreq;
-	unsigned			relation;
+	unsigned			newstate;
 };
 
 static long powernowk8_target_fn(void *arg)
 {
 	struct powernowk8_target_arg *pta = arg;
 	struct cpufreq_policy *pol = pta->pol;
-	unsigned targfreq = pta->targfreq;
-	unsigned relation = pta->relation;
+	unsigned newstate = pta->newstate;
 	struct powernow_k8_data *data = per_cpu(powernow_data, pol->cpu);
 	u32 checkfid;
 	u32 checkvid;
-	unsigned int newstate;
 	int ret;
 
 	if (!data)
@@ -1004,8 +1001,9 @@ static long powernowk8_target_fn(void *arg)
 		return -EIO;
 	}
 
-	pr_debug("targ: cpu %d, %d kHz, min %d, max %d, relation %d\n",
-		pol->cpu, targfreq, pol->min, pol->max, relation);
+	pr_debug("targ: cpu %d, %d kHz, min %d, max %d\n",
+		pol->cpu, data->powernow_table[newstate].frequency, pol->min,
+		pol->max);
 
 	if (query_current_values_with_pending_wait(data))
 		return -EIO;
@@ -1021,10 +1019,6 @@ static long powernowk8_target_fn(void *arg)
 		       checkvid, data->currvid);
 	}
 
-	if (cpufreq_frequency_table_target(pol, data->powernow_table,
-				targfreq, relation, &newstate))
-		return -EIO;
-
 	mutex_lock(&fidvid_mutex);
 
 	powernow_k8_acpi_pst_values(data, newstate);
@@ -1044,11 +1038,9 @@ static long powernowk8_target_fn(void *arg)
 }
 
 /* Driver entry point to switch to the target frequency */
-static int powernowk8_target(struct cpufreq_policy *pol,
-		unsigned targfreq, unsigned relation)
+static int powernowk8_target(struct cpufreq_policy *pol, unsigned index)
 {
-	struct powernowk8_target_arg pta = { .pol = pol, .targfreq = targfreq,
-					     .relation = relation };
+	struct powernowk8_target_arg pta = { .pol = pol, .newstate = index };
 
 	return work_on_cpu(pol->cpu, powernowk8_target_fn, &pta);
 }
@@ -1213,7 +1205,7 @@ out:
 
 static struct cpufreq_driver cpufreq_amd64_driver = {
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= powernowk8_target,
+	.target_index	= powernowk8_target,
 	.bios_limit	= acpi_processor_get_bios_limit,
 	.init		= powernowk8_cpu_init,
 	.exit		= powernowk8_cpu_exit,
diff --git a/drivers/cpufreq/ppc-corenet-cpufreq.c b/drivers/cpufreq/ppc-corenet-cpufreq.c
index a0f562ca292d..79d8e9c46b6d 100644
--- a/drivers/cpufreq/ppc-corenet-cpufreq.c
+++ b/drivers/cpufreq/ppc-corenet-cpufreq.c
@@ -251,27 +251,20 @@ static int __exit corenet_cpufreq_cpu_exit(struct cpufreq_policy *policy)
 }
 
 static int corenet_cpufreq_target(struct cpufreq_policy *policy,
-		unsigned int target_freq, unsigned int relation)
+		unsigned int index)
 {
 	struct cpufreq_freqs freqs;
-	unsigned int new;
 	struct clk *parent;
 	int ret;
 	struct cpu_data *data = per_cpu(cpu_data, policy->cpu);
 
-	cpufreq_frequency_table_target(policy, data->table,
-			target_freq, relation, &new);
-
-	if (policy->cur == data->table[new].frequency)
-		return 0;
-
 	freqs.old = policy->cur;
-	freqs.new = data->table[new].frequency;
+	freqs.new = data->table[index].frequency;
 
 	mutex_lock(&cpufreq_lock);
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
 
-	parent = of_clk_get(data->parent, data->table[new].driver_data);
+	parent = of_clk_get(data->parent, data->table[index].driver_data);
 	ret = clk_set_parent(data->clk, parent);
 	if (ret)
 		freqs.new = freqs.old;
@@ -288,7 +281,7 @@ static struct cpufreq_driver ppc_corenet_cpufreq_driver = {
 	.init		= corenet_cpufreq_cpu_init,
 	.exit		= __exit_p(corenet_cpufreq_cpu_exit),
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= corenet_cpufreq_target,
+	.target_index	= corenet_cpufreq_target,
 	.get		= corenet_cpufreq_get_speed,
 	.attr		= cpufreq_generic_attr,
 };
diff --git a/drivers/cpufreq/ppc_cbe_cpufreq.c b/drivers/cpufreq/ppc_cbe_cpufreq.c
index 38540d1f5939..52f707d5f458 100644
--- a/drivers/cpufreq/ppc_cbe_cpufreq.c
+++ b/drivers/cpufreq/ppc_cbe_cpufreq.c
@@ -129,18 +129,10 @@ static int cbe_cpufreq_cpu_init(struct cpufreq_policy *policy)
 }
 
 static int cbe_cpufreq_target(struct cpufreq_policy *policy,
-			      unsigned int target_freq,
-			      unsigned int relation)
+			      unsigned int cbe_pmode_new)
 {
 	int rc;
 	struct cpufreq_freqs freqs;
-	unsigned int cbe_pmode_new;
-
-	cpufreq_frequency_table_target(policy,
-				       cbe_freqs,
-				       target_freq,
-				       relation,
-				       &cbe_pmode_new);
 
 	freqs.old = policy->cur;
 	freqs.new = cbe_freqs[cbe_pmode_new].frequency;
@@ -164,7 +156,7 @@ static int cbe_cpufreq_target(struct cpufreq_policy *policy,
 
 static struct cpufreq_driver cbe_cpufreq_driver = {
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= cbe_cpufreq_target,
+	.target_index	= cbe_cpufreq_target,
 	.init		= cbe_cpufreq_cpu_init,
 	.exit		= cpufreq_generic_exit,
 	.name		= "cbe-cpufreq",
diff --git a/drivers/cpufreq/pxa2xx-cpufreq.c b/drivers/cpufreq/pxa2xx-cpufreq.c
index 29aca574317b..183bc13f13e5 100644
--- a/drivers/cpufreq/pxa2xx-cpufreq.c
+++ b/drivers/cpufreq/pxa2xx-cpufreq.c
@@ -267,14 +267,11 @@ static unsigned int pxa_cpufreq_get(unsigned int cpu)
 	return get_clk_frequency_khz(0);
 }
 
-static int pxa_set_target(struct cpufreq_policy *policy,
-			  unsigned int target_freq,
-			  unsigned int relation)
+static int pxa_set_target(struct cpufreq_policy *policy, unsigned int idx)
 {
 	struct cpufreq_frequency_table *pxa_freqs_table;
 	pxa_freqs_t *pxa_freq_settings;
 	struct cpufreq_freqs freqs;
-	unsigned int idx;
 	unsigned long flags;
 	unsigned int new_freq_cpu, new_freq_mem;
 	unsigned int unused, preset_mdrefr, postset_mdrefr, cclkcfg;
@@ -283,12 +280,6 @@ static int pxa_set_target(struct cpufreq_policy *policy,
 	/* Get the current policy */
 	find_freq_tables(&pxa_freqs_table, &pxa_freq_settings);
 
-	/* Lookup the next frequency */
-	if (cpufreq_frequency_table_target(policy, pxa_freqs_table,
-					   target_freq, relation, &idx)) {
-		return -EINVAL;
-	}
-
 	new_freq_cpu = pxa_freq_settings[idx].khz;
 	new_freq_mem = pxa_freq_settings[idx].membus;
 	freqs.old = policy->cur;
@@ -448,7 +439,7 @@ static int pxa_cpufreq_init(struct cpufreq_policy *policy)
 
 static struct cpufreq_driver pxa_cpufreq_driver = {
 	.verify	= cpufreq_generic_frequency_table_verify,
-	.target	= pxa_set_target,
+	.target_index = pxa_set_target,
 	.init	= pxa_cpufreq_init,
 	.exit	= cpufreq_generic_exit,
 	.get	= pxa_cpufreq_get,
diff --git a/drivers/cpufreq/pxa3xx-cpufreq.c b/drivers/cpufreq/pxa3xx-cpufreq.c
index 47fbee49d6e5..132e37d578c2 100644
--- a/drivers/cpufreq/pxa3xx-cpufreq.c
+++ b/drivers/cpufreq/pxa3xx-cpufreq.c
@@ -155,24 +155,16 @@ static unsigned int pxa3xx_cpufreq_get(unsigned int cpu)
 	return pxa3xx_get_clk_frequency_khz(0);
 }
 
-static int pxa3xx_cpufreq_set(struct cpufreq_policy *policy,
-			      unsigned int target_freq,
-			      unsigned int relation)
+static int pxa3xx_cpufreq_set(struct cpufreq_policy *policy, unsigned int index)
 {
 	struct pxa3xx_freq_info *next;
 	struct cpufreq_freqs freqs;
 	unsigned long flags;
-	int idx;
 
 	if (policy->cpu != 0)
 		return -EINVAL;
 
-	/* Lookup the next frequency */
-	if (cpufreq_frequency_table_target(policy, pxa3xx_freqs_table,
-				target_freq, relation, &idx))
-		return -EINVAL;
-
-	next = &pxa3xx_freqs[idx];
+	next = &pxa3xx_freqs[index];
 
 	freqs.old = policy->cur;
 	freqs.new = next->cpufreq_mhz * 1000;
@@ -181,9 +173,6 @@ static int pxa3xx_cpufreq_set(struct cpufreq_policy *policy,
 			freqs.old / 1000, freqs.new / 1000,
 			(freqs.old == freqs.new) ? " (skipped)" : "");
 
-	if (freqs.old == target_freq)
-		return 0;
-
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
 
 	local_irq_save(flags);
@@ -225,7 +214,7 @@ static int pxa3xx_cpufreq_init(struct cpufreq_policy *policy)
 
 static struct cpufreq_driver pxa3xx_cpufreq_driver = {
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= pxa3xx_cpufreq_set,
+	.target_index	= pxa3xx_cpufreq_set,
 	.init		= pxa3xx_cpufreq_init,
 	.exit		= cpufreq_generic_exit,
 	.get		= pxa3xx_cpufreq_get,
diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c
index 26a35d137157..4188accd34ab 100644
--- a/drivers/cpufreq/s3c2416-cpufreq.c
+++ b/drivers/cpufreq/s3c2416-cpufreq.c
@@ -217,24 +217,15 @@ static int s3c2416_cpufreq_leave_dvs(struct s3c2416_data *s3c_freq, int idx)
 }
 
 static int s3c2416_cpufreq_set_target(struct cpufreq_policy *policy,
-				      unsigned int target_freq,
-				      unsigned int relation)
+				      unsigned int index)
 {
 	struct s3c2416_data *s3c_freq = &s3c2416_cpufreq;
 	struct cpufreq_freqs freqs;
 	int idx, ret, to_dvs = 0;
-	unsigned int i;
 
 	mutex_lock(&cpufreq_lock);
 
-	pr_debug("cpufreq: to %dKHz, relation %d\n", target_freq, relation);
-
-	ret = cpufreq_frequency_table_target(policy, s3c_freq->freq_table,
-					     target_freq, relation, &i);
-	if (ret != 0)
-		goto out;
-
-	idx = s3c_freq->freq_table[i].driver_data;
+	idx = s3c_freq->freq_table[index].driver_data;
 
 	if (idx == SOURCE_HCLK)
 		to_dvs = 1;
@@ -256,7 +247,7 @@ static int s3c2416_cpufreq_set_target(struct cpufreq_policy *policy,
 	 */
 	freqs.new = (s3c_freq->is_dvs && !to_dvs)
 				? clk_get_rate(s3c_freq->hclk) / 1000
-				: s3c_freq->freq_table[i].frequency;
+				: s3c_freq->freq_table[index].frequency;
 
 	pr_debug("cpufreq: Transition %d-%dkHz\n", freqs.old, freqs.new);
 
@@ -505,7 +496,7 @@ err_hclk:
 static struct cpufreq_driver s3c2416_cpufreq_driver = {
 	.flags          = 0,
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= s3c2416_cpufreq_set_target,
+	.target_index	= s3c2416_cpufreq_set_target,
 	.get		= s3c2416_cpufreq_get_speed,
 	.init		= s3c2416_cpufreq_driver_init,
 	.name		= "s3c2416",
diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c
index 461617332033..8bdcf32a4418 100644
--- a/drivers/cpufreq/s3c64xx-cpufreq.c
+++ b/drivers/cpufreq/s3c64xx-cpufreq.c
@@ -63,26 +63,16 @@ static unsigned int s3c64xx_cpufreq_get_speed(unsigned int cpu)
 }
 
 static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
-				      unsigned int target_freq,
-				      unsigned int relation)
+				      unsigned int index)
 {
 	int ret;
-	unsigned int i;
 	struct cpufreq_freqs freqs;
 	struct s3c64xx_dvfs *dvfs;
 
-	ret = cpufreq_frequency_table_target(policy, s3c64xx_freq_table,
-					     target_freq, relation, &i);
-	if (ret != 0)
-		return ret;
-
 	freqs.old = clk_get_rate(armclk) / 1000;
-	freqs.new = s3c64xx_freq_table[i].frequency;
+	freqs.new = s3c64xx_freq_table[index].frequency;
 	freqs.flags = 0;
-	dvfs = &s3c64xx_dvfs_table[s3c64xx_freq_table[i].driver_data];
-
-	if (freqs.old == freqs.new)
-		return 0;
+	dvfs = &s3c64xx_dvfs_table[s3c64xx_freq_table[index].driver_data];
 
 	pr_debug("Transition %d-%dkHz\n", freqs.old, freqs.new);
 
@@ -254,7 +244,7 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy)
 static struct cpufreq_driver s3c64xx_cpufreq_driver = {
 	.flags          = 0,
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= s3c64xx_cpufreq_set_target,
+	.target_index	= s3c64xx_cpufreq_set_target,
 	.get		= s3c64xx_cpufreq_get_speed,
 	.init		= s3c64xx_cpufreq_driver_init,
 	.name		= "s3c",
diff --git a/drivers/cpufreq/s5pv210-cpufreq.c b/drivers/cpufreq/s5pv210-cpufreq.c
index 600b4f472e28..5978b94e0340 100644
--- a/drivers/cpufreq/s5pv210-cpufreq.c
+++ b/drivers/cpufreq/s5pv210-cpufreq.c
@@ -36,16 +36,7 @@ static DEFINE_MUTEX(set_freq_lock);
 /* Use 800MHz when entering sleep mode */
 #define SLEEP_FREQ	(800 * 1000)
 
-/*
- * relation has an additional symantics other than the standard of cpufreq
- * DISALBE_FURTHER_CPUFREQ: disable further access to target
- * ENABLE_FURTUER_CPUFREQ: enable access to target
- */
-enum cpufreq_access {
-	DISABLE_FURTHER_CPUFREQ = 0x10,
-	ENABLE_FURTHER_CPUFREQ = 0x20,
-};
-
+/* Tracks if cpu freqency can be updated anymore */
 static bool no_cpufreq_access;
 
 /*
@@ -182,12 +173,10 @@ static unsigned int s5pv210_getspeed(unsigned int cpu)
 	return clk_get_rate(cpu_clk) / 1000;
 }
 
-static int s5pv210_target(struct cpufreq_policy *policy,
-			  unsigned int target_freq,
-			  unsigned int relation)
+static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index)
 {
 	unsigned long reg;
-	unsigned int index, priv_index;
+	unsigned int priv_index;
 	unsigned int pll_changing = 0;
 	unsigned int bus_speed_changing = 0;
 	int arm_volt, int_volt;
@@ -195,9 +184,6 @@ static int s5pv210_target(struct cpufreq_policy *policy,
 
 	mutex_lock(&set_freq_lock);
 
-	if (relation & ENABLE_FURTHER_CPUFREQ)
-		no_cpufreq_access = false;
-
 	if (no_cpufreq_access) {
 #ifdef CONFIG_PM_VERBOSE
 		pr_err("%s:%d denied access to %s as it is disabled"
@@ -207,27 +193,13 @@ static int s5pv210_target(struct cpufreq_policy *policy,
 		goto exit;
 	}
 
-	if (relation & DISABLE_FURTHER_CPUFREQ)
-		no_cpufreq_access = true;
-
-	relation &= ~(ENABLE_FURTHER_CPUFREQ | DISABLE_FURTHER_CPUFREQ);
-
 	freqs.old = s5pv210_getspeed(0);
-
-	if (cpufreq_frequency_table_target(policy, s5pv210_freq_table,
-					   target_freq, relation, &index)) {
-		ret = -EINVAL;
-		goto exit;
-	}
-
 	freqs.new = s5pv210_freq_table[index].frequency;
 
-	if (freqs.new == freqs.old)
-		goto exit;
-
 	/* Finding current running level index */
 	if (cpufreq_frequency_table_target(policy, s5pv210_freq_table,
-					   freqs.old, relation, &priv_index)) {
+					   freqs.old, CPUFREQ_RELATION_H,
+					   &priv_index)) {
 		ret = -EINVAL;
 		goto exit;
 	}
@@ -559,16 +531,18 @@ static int s5pv210_cpufreq_notifier_event(struct notifier_block *this,
 
 	switch (event) {
 	case PM_SUSPEND_PREPARE:
-		ret = cpufreq_driver_target(cpufreq_cpu_get(0), SLEEP_FREQ,
-					    DISABLE_FURTHER_CPUFREQ);
+		ret = cpufreq_driver_target(cpufreq_cpu_get(0), SLEEP_FREQ, 0);
 		if (ret < 0)
 			return NOTIFY_BAD;
 
+		/* Disable updation of cpu frequency */
+		no_cpufreq_access = true;
 		return NOTIFY_OK;
 	case PM_POST_RESTORE:
 	case PM_POST_SUSPEND:
-		cpufreq_driver_target(cpufreq_cpu_get(0), SLEEP_FREQ,
-				      ENABLE_FURTHER_CPUFREQ);
+		/* Enable updation of cpu frequency */
+		no_cpufreq_access = false;
+		cpufreq_driver_target(cpufreq_cpu_get(0), SLEEP_FREQ, 0);
 
 		return NOTIFY_OK;
 	}
@@ -581,18 +555,18 @@ static int s5pv210_cpufreq_reboot_notifier_event(struct notifier_block *this,
 {
 	int ret;
 
-	ret = cpufreq_driver_target(cpufreq_cpu_get(0), SLEEP_FREQ,
-				    DISABLE_FURTHER_CPUFREQ);
+	ret = cpufreq_driver_target(cpufreq_cpu_get(0), SLEEP_FREQ, 0);
 	if (ret < 0)
 		return NOTIFY_BAD;
 
+	no_cpufreq_access = true;
 	return NOTIFY_DONE;
 }
 
 static struct cpufreq_driver s5pv210_driver = {
 	.flags		= CPUFREQ_STICKY,
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= s5pv210_target,
+	.target_index	= s5pv210_target,
 	.get		= s5pv210_getspeed,
 	.init		= s5pv210_cpu_init,
 	.name		= "s5pv210",
diff --git a/drivers/cpufreq/sa1100-cpufreq.c b/drivers/cpufreq/sa1100-cpufreq.c
index b282cea47e62..b0da1fe40b1d 100644
--- a/drivers/cpufreq/sa1100-cpufreq.c
+++ b/drivers/cpufreq/sa1100-cpufreq.c
@@ -177,36 +177,20 @@ static void sa1100_update_dram_timings(int current_speed, int new_speed)
 	}
 }
 
-static int sa1100_target(struct cpufreq_policy *policy,
-			 unsigned int target_freq,
-			 unsigned int relation)
+static int sa1100_target(struct cpufreq_policy *policy, unsigned int ppcr)
 {
 	unsigned int cur = sa11x0_getspeed(0);
-	unsigned int new_ppcr;
 	struct cpufreq_freqs freqs;
 
-	new_ppcr = sa11x0_freq_to_ppcr(target_freq);
-	switch (relation) {
-	case CPUFREQ_RELATION_L:
-		if (sa11x0_ppcr_to_freq(new_ppcr) > policy->max)
-			new_ppcr--;
-		break;
-	case CPUFREQ_RELATION_H:
-		if ((sa11x0_ppcr_to_freq(new_ppcr) > target_freq) &&
-		    (sa11x0_ppcr_to_freq(new_ppcr - 1) >= policy->min))
-			new_ppcr--;
-		break;
-	}
-
 	freqs.old = cur;
-	freqs.new = sa11x0_ppcr_to_freq(new_ppcr);
+	freqs.new = sa11x0_freq_table[ppcr].frequency;
 
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
 
 	if (freqs.new > cur)
 		sa1100_update_dram_timings(cur, freqs.new);
 
-	PPCR = new_ppcr;
+	PPCR = ppcr;
 
 	if (freqs.new < cur)
 		sa1100_update_dram_timings(cur, freqs.new);
@@ -224,7 +208,7 @@ static int __init sa1100_cpu_init(struct cpufreq_policy *policy)
 static struct cpufreq_driver sa1100_driver __refdata = {
 	.flags		= CPUFREQ_STICKY,
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= sa1100_target,
+	.target_index	= sa1100_target,
 	.get		= sa11x0_getspeed,
 	.init		= sa1100_cpu_init,
 	.name		= "sa1100",
diff --git a/drivers/cpufreq/sa1110-cpufreq.c b/drivers/cpufreq/sa1110-cpufreq.c
index bca04c0b4a73..55b1818c3e49 100644
--- a/drivers/cpufreq/sa1110-cpufreq.c
+++ b/drivers/cpufreq/sa1110-cpufreq.c
@@ -229,34 +229,16 @@ sdram_update_refresh(u_int cpu_khz, struct sdram_params *sdram)
 /*
  * Ok, set the CPU frequency.
  */
-static int sa1110_target(struct cpufreq_policy *policy,
-			 unsigned int target_freq,
-			 unsigned int relation)
+static int sa1110_target(struct cpufreq_policy *policy, unsigned int ppcr)
 {
 	struct sdram_params *sdram = &sdram_params;
 	struct cpufreq_freqs freqs;
 	struct sdram_info sd;
 	unsigned long flags;
-	unsigned int ppcr, unused;
-
-	switch (relation) {
-	case CPUFREQ_RELATION_L:
-		ppcr = sa11x0_freq_to_ppcr(target_freq);
-		if (sa11x0_ppcr_to_freq(ppcr) > policy->max)
-			ppcr--;
-		break;
-	case CPUFREQ_RELATION_H:
-		ppcr = sa11x0_freq_to_ppcr(target_freq);
-		if (ppcr && (sa11x0_ppcr_to_freq(ppcr) > target_freq) &&
-		    (sa11x0_ppcr_to_freq(ppcr-1) >= policy->min))
-			ppcr--;
-		break;
-	default:
-		return -EINVAL;
-	}
+	unsigned int unused;
 
 	freqs.old = sa11x0_getspeed(0);
-	freqs.new = sa11x0_ppcr_to_freq(ppcr);
+	freqs.new = sa11x0_freq_table[ppcr].frequency;
 
 	sdram_calculate_timing(&sd, freqs.new, sdram);
 
@@ -340,7 +322,7 @@ static int __init sa1110_cpu_init(struct cpufreq_policy *policy)
 static struct cpufreq_driver sa1110_driver __refdata = {
 	.flags		= CPUFREQ_STICKY,
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= sa1110_target,
+	.target_index	= sa1110_target,
 	.get		= sa11x0_getspeed,
 	.init		= sa1110_cpu_init,
 	.name		= "sa1110",
diff --git a/drivers/cpufreq/sc520_freq.c b/drivers/cpufreq/sc520_freq.c
index 9047ab1ca014..6c86452e1737 100644
--- a/drivers/cpufreq/sc520_freq.c
+++ b/drivers/cpufreq/sc520_freq.c
@@ -53,8 +53,7 @@ static unsigned int sc520_freq_get_cpu_frequency(unsigned int cpu)
 	}
 }
 
-static void sc520_freq_set_cpu_state(struct cpufreq_policy *policy,
-		unsigned int state)
+static int sc520_freq_target(struct cpufreq_policy *policy, unsigned int state)
 {
 
 	struct cpufreq_freqs	freqs;
@@ -76,24 +75,10 @@ static void sc520_freq_set_cpu_state(struct cpufreq_policy *policy,
 	local_irq_enable();
 
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-};
-
-static int sc520_freq_target(struct cpufreq_policy *policy,
-			    unsigned int target_freq,
-			    unsigned int relation)
-{
-	unsigned int newstate = 0;
-
-	if (cpufreq_frequency_table_target(policy, sc520_freq_table,
-				target_freq, relation, &newstate))
-		return -EINVAL;
-
-	sc520_freq_set_cpu_state(policy, newstate);
 
 	return 0;
 }
 
-
 /*
  *	Module init and exit code
  */
@@ -117,7 +102,7 @@ static int sc520_freq_cpu_init(struct cpufreq_policy *policy)
 static struct cpufreq_driver sc520_freq_driver = {
 	.get	= sc520_freq_get_cpu_frequency,
 	.verify	= cpufreq_generic_frequency_table_verify,
-	.target	= sc520_freq_target,
+	.target_index = sc520_freq_target,
 	.init	= sc520_freq_cpu_init,
 	.exit	= cpufreq_generic_exit,
 	.name	= "sc520_freq",
diff --git a/drivers/cpufreq/sparc-us2e-cpufreq.c b/drivers/cpufreq/sparc-us2e-cpufreq.c
index 291688c1da9a..3bf5b8f03661 100644
--- a/drivers/cpufreq/sparc-us2e-cpufreq.c
+++ b/drivers/cpufreq/sparc-us2e-cpufreq.c
@@ -245,8 +245,7 @@ static unsigned int us2e_freq_get(unsigned int cpu)
 	return clock_tick / estar_to_divisor(estar);
 }
 
-static void us2e_set_cpu_divider_index(struct cpufreq_policy *policy,
-		unsigned int index)
+static int us2e_freq_target(struct cpufreq_policy *policy, unsigned int index)
 {
 	unsigned int cpu = policy->cpu;
 	unsigned long new_bits, new_freq;
@@ -277,20 +276,6 @@ static void us2e_set_cpu_divider_index(struct cpufreq_policy *policy,
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
 
 	set_cpus_allowed_ptr(current, &cpus_allowed);
-}
-
-static int us2e_freq_target(struct cpufreq_policy *policy,
-			  unsigned int target_freq,
-			  unsigned int relation)
-{
-	unsigned int new_index = 0;
-
-	if (cpufreq_frequency_table_target(policy,
-					   &us2e_freq_table[policy->cpu].table[0],
-					   target_freq, relation, &new_index))
-		return -EINVAL;
-
-	us2e_set_cpu_divider_index(policy, new_index);
 
 	return 0;
 }
@@ -325,7 +310,7 @@ static int us2e_freq_cpu_exit(struct cpufreq_policy *policy)
 {
 	if (cpufreq_us2e_driver) {
 		cpufreq_frequency_table_put_attr(policy->cpu);
-		us2e_set_cpu_divider_index(policy, 0);
+		us2e_freq_target(policy, 0);
 	}
 
 	return 0;
@@ -358,7 +343,7 @@ static int __init us2e_freq_init(void)
 
 		driver->init = us2e_freq_cpu_init;
 		driver->verify = cpufreq_generic_frequency_table_verify;
-		driver->target = us2e_freq_target;
+		driver->target_index = us2e_freq_target;
 		driver->get = us2e_freq_get;
 		driver->exit = us2e_freq_cpu_exit;
 		strcpy(driver->name, "UltraSPARC-IIe");
diff --git a/drivers/cpufreq/sparc-us3-cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c
index 9b3dbd31362e..2e54d55915df 100644
--- a/drivers/cpufreq/sparc-us3-cpufreq.c
+++ b/drivers/cpufreq/sparc-us3-cpufreq.c
@@ -93,8 +93,7 @@ static unsigned int us3_freq_get(unsigned int cpu)
 	return ret;
 }
 
-static void us3_set_cpu_divider_index(struct cpufreq_policy *policy,
-		unsigned int index)
+static int us3_freq_target(struct cpufreq_policy *policy, unsigned int index)
 {
 	unsigned int cpu = policy->cpu;
 	unsigned long new_bits, new_freq, reg;
@@ -136,22 +135,6 @@ static void us3_set_cpu_divider_index(struct cpufreq_policy *policy,
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
 
 	set_cpus_allowed_ptr(current, &cpus_allowed);
-}
-
-static int us3_freq_target(struct cpufreq_policy *policy,
-			  unsigned int target_freq,
-			  unsigned int relation)
-{
-	unsigned int new_index = 0;
-
-	if (cpufreq_frequency_table_target(policy,
-					   &us3_freq_table[policy->cpu].table[0],
-					   target_freq,
-					   relation,
-					   &new_index))
-		return -EINVAL;
-
-	us3_set_cpu_divider_index(policy, new_index);
 
 	return 0;
 }
@@ -182,7 +165,7 @@ static int us3_freq_cpu_exit(struct cpufreq_policy *policy)
 {
 	if (cpufreq_us3_driver) {
 		cpufreq_frequency_table_put_attr(policy->cpu);
-		us3_set_cpu_divider_index(policy, 0);
+		us3_freq_target(policy, 0);
 	}
 
 	return 0;
@@ -219,7 +202,7 @@ static int __init us3_freq_init(void)
 
 		driver->init = us3_freq_cpu_init;
 		driver->verify = cpufreq_generic_frequency_table_verify;
-		driver->target = us3_freq_target;
+		driver->target_index = us3_freq_target;
 		driver->get = us3_freq_get;
 		driver->exit = us3_freq_cpu_exit;
 		strcpy(driver->name, "UltraSPARC-III");
diff --git a/drivers/cpufreq/spear-cpufreq.c b/drivers/cpufreq/spear-cpufreq.c
index 8841366a2068..11a65be3fd76 100644
--- a/drivers/cpufreq/spear-cpufreq.c
+++ b/drivers/cpufreq/spear-cpufreq.c
@@ -105,20 +105,16 @@ static int spear1340_set_cpu_rate(struct clk *sys_pclk, unsigned long newfreq)
 }
 
 static int spear_cpufreq_target(struct cpufreq_policy *policy,
-		unsigned int target_freq, unsigned int relation)
+		unsigned int index)
 {
 	struct cpufreq_freqs freqs;
 	long newfreq;
 	struct clk *srcclk;
-	int index, ret, mult = 1;
-
-	if (cpufreq_frequency_table_target(policy, spear_cpufreq.freq_tbl,
-				target_freq, relation, &index))
-		return -EINVAL;
+	int ret, mult = 1;
 
 	freqs.old = spear_cpufreq_get(0);
-
 	newfreq = spear_cpufreq.freq_tbl[index].frequency * 1000;
+
 	if (of_machine_is_compatible("st,spear1340")) {
 		/*
 		 * SPEAr1340 is special in the sense that due to the possibility
@@ -179,7 +175,7 @@ static struct cpufreq_driver spear_cpufreq_driver = {
 	.name		= "cpufreq-spear",
 	.flags		= CPUFREQ_STICKY,
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= spear_cpufreq_target,
+	.target_index	= spear_cpufreq_target,
 	.get		= spear_cpufreq_get,
 	.init		= spear_cpufreq_init,
 	.exit		= cpufreq_generic_exit,
diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c
index 25e45f89acac..c51ec8c0e3a8 100644
--- a/drivers/cpufreq/speedstep-centrino.c
+++ b/drivers/cpufreq/speedstep-centrino.c
@@ -416,21 +416,17 @@ static int centrino_cpu_exit(struct cpufreq_policy *policy)
 /**
  * centrino_setpolicy - set a new CPUFreq policy
  * @policy: new policy
- * @target_freq: the target frequency
- * @relation: how that frequency relates to achieved frequency
- *	(CPUFREQ_RELATION_L or CPUFREQ_RELATION_H)
+ * @index: index of target frequency
  *
  * Sets a new CPUFreq policy.
  */
-static int centrino_target (struct cpufreq_policy *policy,
-			    unsigned int target_freq,
-			    unsigned int relation)
+static int centrino_target(struct cpufreq_policy *policy, unsigned int index)
 {
-	unsigned int    newstate = 0;
 	unsigned int	msr, oldmsr = 0, h = 0, cpu = policy->cpu;
 	struct cpufreq_freqs	freqs;
 	int			retval = 0;
 	unsigned int		j, first_cpu, tmp;
+	struct cpufreq_frequency_table *op_points;
 	cpumask_var_t covered_cpus;
 
 	if (unlikely(!zalloc_cpumask_var(&covered_cpus, GFP_KERNEL)))
@@ -441,16 +437,8 @@ static int centrino_target (struct cpufreq_policy *policy,
 		goto out;
 	}
 
-	if (unlikely(cpufreq_frequency_table_target(policy,
-			per_cpu(centrino_model, cpu)->op_points,
-			target_freq,
-			relation,
-			&newstate))) {
-		retval = -EINVAL;
-		goto out;
-	}
-
 	first_cpu = 1;
+	op_points = &per_cpu(centrino_model, cpu)->op_points[index];
 	for_each_cpu(j, policy->cpus) {
 		int good_cpu;
 
@@ -474,7 +462,7 @@ static int centrino_target (struct cpufreq_policy *policy,
 			break;
 		}
 
-		msr = per_cpu(centrino_model, cpu)->op_points[newstate].driver_data;
+		msr = op_points->driver_data;
 
 		if (first_cpu) {
 			rdmsr_on_cpu(good_cpu, MSR_IA32_PERF_CTL, &oldmsr, &h);
@@ -489,7 +477,8 @@ static int centrino_target (struct cpufreq_policy *policy,
 			freqs.new = extract_clock(msr, cpu, 0);
 
 			pr_debug("target=%dkHz old=%d new=%d msr=%04x\n",
-				target_freq, freqs.old, freqs.new, msr);
+				op_points->frequency, freqs.old, freqs.new,
+				msr);
 
 			cpufreq_notify_transition(policy, &freqs,
 					CPUFREQ_PRECHANGE);
@@ -540,7 +529,7 @@ static struct cpufreq_driver centrino_driver = {
 	.init		= centrino_cpu_init,
 	.exit		= centrino_cpu_exit,
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= centrino_target,
+	.target_index	= centrino_target,
 	.get		= get_cur_freq,
 	.attr		= cpufreq_generic_attr,
 };
diff --git a/drivers/cpufreq/speedstep-ich.c b/drivers/cpufreq/speedstep-ich.c
index 1a8b01bd0fec..707721ebb853 100644
--- a/drivers/cpufreq/speedstep-ich.c
+++ b/drivers/cpufreq/speedstep-ich.c
@@ -251,36 +251,24 @@ static unsigned int speedstep_get(unsigned int cpu)
 /**
  * speedstep_target - set a new CPUFreq policy
  * @policy: new policy
- * @target_freq: the target frequency
- * @relation: how that frequency relates to achieved frequency
- *	(CPUFREQ_RELATION_L or CPUFREQ_RELATION_H)
+ * @index: index of target frequency
  *
  * Sets a new CPUFreq policy.
  */
-static int speedstep_target(struct cpufreq_policy *policy,
-			     unsigned int target_freq,
-			     unsigned int relation)
+static int speedstep_target(struct cpufreq_policy *policy, unsigned int index)
 {
-	unsigned int newstate = 0, policy_cpu;
+	unsigned int policy_cpu;
 	struct cpufreq_freqs freqs;
 
-	if (cpufreq_frequency_table_target(policy, &speedstep_freqs[0],
-				target_freq, relation, &newstate))
-		return -EINVAL;
-
 	policy_cpu = cpumask_any_and(policy->cpus, cpu_online_mask);
 	freqs.old = speedstep_get(policy_cpu);
-	freqs.new = speedstep_freqs[newstate].frequency;
+	freqs.new = speedstep_freqs[index].frequency;
 
 	pr_debug("transiting from %u to %u kHz\n", freqs.old, freqs.new);
 
-	/* no transition necessary */
-	if (freqs.old == freqs.new)
-		return 0;
-
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
 
-	smp_call_function_single(policy_cpu, _speedstep_set_state, &newstate,
+	smp_call_function_single(policy_cpu, _speedstep_set_state, &index,
 				 true);
 
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
@@ -330,7 +318,7 @@ static int speedstep_cpu_init(struct cpufreq_policy *policy)
 static struct cpufreq_driver speedstep_driver = {
 	.name	= "speedstep-ich",
 	.verify	= cpufreq_generic_frequency_table_verify,
-	.target	= speedstep_target,
+	.target_index = speedstep_target,
 	.init	= speedstep_cpu_init,
 	.exit	= cpufreq_generic_exit,
 	.get	= speedstep_get,
diff --git a/drivers/cpufreq/speedstep-smi.c b/drivers/cpufreq/speedstep-smi.c
index a02b649c9647..19446e479ccc 100644
--- a/drivers/cpufreq/speedstep-smi.c
+++ b/drivers/cpufreq/speedstep-smi.c
@@ -235,29 +235,19 @@ static void speedstep_set_state(unsigned int state)
 /**
  * speedstep_target - set a new CPUFreq policy
  * @policy: new policy
- * @target_freq: new freq
- * @relation:
+ * @index: index of new freq
  *
  * Sets a new CPUFreq policy/freq.
  */
-static int speedstep_target(struct cpufreq_policy *policy,
-			unsigned int target_freq, unsigned int relation)
+static int speedstep_target(struct cpufreq_policy *policy, unsigned int index)
 {
-	unsigned int newstate = 0;
 	struct cpufreq_freqs freqs;
 
-	if (cpufreq_frequency_table_target(policy, &speedstep_freqs[0],
-				target_freq, relation, &newstate))
-		return -EINVAL;
-
 	freqs.old = speedstep_freqs[speedstep_get_state()].frequency;
-	freqs.new = speedstep_freqs[newstate].frequency;
-
-	if (freqs.old == freqs.new)
-		return 0;
+	freqs.new = speedstep_freqs[index].frequency;
 
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-	speedstep_set_state(newstate);
+	speedstep_set_state(index);
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
 
 	return 0;
@@ -327,7 +317,7 @@ static int speedstep_resume(struct cpufreq_policy *policy)
 static struct cpufreq_driver speedstep_driver = {
 	.name		= "speedstep-smi",
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= speedstep_target,
+	.target_index	= speedstep_target,
 	.init		= speedstep_cpu_init,
 	.exit		= cpufreq_generic_exit,
 	.get		= speedstep_get,
diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c
index 32483ef63d53..bd7d89c013a5 100644
--- a/drivers/cpufreq/tegra-cpufreq.c
+++ b/drivers/cpufreq/tegra-cpufreq.c
@@ -150,11 +150,8 @@ static unsigned long tegra_cpu_highest_speed(void)
 	return rate;
 }
 
-static int tegra_target(struct cpufreq_policy *policy,
-		       unsigned int target_freq,
-		       unsigned int relation)
+static int tegra_target(struct cpufreq_policy *policy, unsigned int index)
 {
-	unsigned int idx;
 	unsigned int freq;
 	int ret = 0;
 
@@ -165,10 +162,7 @@ static int tegra_target(struct cpufreq_policy *policy,
 		goto out;
 	}
 
-	cpufreq_frequency_table_target(policy, freq_table, target_freq,
-		relation, &idx);
-
-	freq = freq_table[idx].frequency;
+	freq = freq_table[index].frequency;
 
 	target_cpu_speed[policy->cpu] = freq;
 
@@ -238,7 +232,7 @@ static int tegra_cpu_exit(struct cpufreq_policy *policy)
 
 static struct cpufreq_driver tegra_cpufreq_driver = {
 	.verify		= cpufreq_generic_frequency_table_verify,
-	.target		= tegra_target,
+	.target_index	= tegra_target,
 	.get		= tegra_getspeed,
 	.init		= tegra_cpu_init,
 	.exit		= tegra_cpu_exit,
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 0aba2a6cadaf..e8c77d330479 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -187,9 +187,11 @@ struct cpufreq_driver {
 
 	/* define one out of two */
 	int	(*setpolicy)	(struct cpufreq_policy *policy);
-	int	(*target)	(struct cpufreq_policy *policy,
+	int	(*target)	(struct cpufreq_policy *policy,	/* Deprecated */
 				 unsigned int target_freq,
 				 unsigned int relation);
+	int	(*target_index)	(struct cpufreq_policy *policy,
+				 unsigned int index);
 
 	/* should be defined, if possible */
 	unsigned int	(*get)	(unsigned int cpu);
-- 
cgit 


From ee08997fee16f10be23c9748d609dbdf3baab8e4 Mon Sep 17 00:00:00 2001
From: Dmitry Kasatkin <d.kasatkin@samsung.com>
Date: Mon, 6 May 2013 15:40:01 +0300
Subject: crypto: provide single place for hash algo information

This patch provides a single place for information about hash algorithms,
such as hash sizes and kernel driver names, which will be used by IMA
and the public key code.

Changelog:
- Fix sparse and checkpatch warnings
- Move hash algo enums to uapi for userspace signing functions.

Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/Kconfig                 |  3 +++
 crypto/Makefile                |  1 +
 crypto/hash_info.c             | 56 ++++++++++++++++++++++++++++++++++++++++++
 include/crypto/hash_info.h     | 40 ++++++++++++++++++++++++++++++
 include/uapi/linux/hash_info.h | 37 ++++++++++++++++++++++++++++
 5 files changed, 137 insertions(+)
 create mode 100644 crypto/hash_info.c
 create mode 100644 include/crypto/hash_info.h
 create mode 100644 include/uapi/linux/hash_info.h

diff --git a/crypto/Kconfig b/crypto/Kconfig
index 69ce573f1224..ba061b091d9f 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -1386,6 +1386,9 @@ config CRYPTO_USER_API_SKCIPHER
 	  This option enables the user-spaces interface for symmetric
 	  key cipher algorithms.
 
+config CRYPTO_HASH_INFO
+	bool
+
 source "drivers/crypto/Kconfig"
 source crypto/asymmetric_keys/Kconfig
 
diff --git a/crypto/Makefile b/crypto/Makefile
index 80019ba8da3a..b3a7e807e08b 100644
--- a/crypto/Makefile
+++ b/crypto/Makefile
@@ -104,3 +104,4 @@ obj-$(CONFIG_CRYPTO_USER_API_SKCIPHER) += algif_skcipher.o
 obj-$(CONFIG_XOR_BLOCKS) += xor.o
 obj-$(CONFIG_ASYNC_CORE) += async_tx/
 obj-$(CONFIG_ASYMMETRIC_KEY_TYPE) += asymmetric_keys/
+obj-$(CONFIG_CRYPTO_HASH_INFO) += hash_info.o
diff --git a/crypto/hash_info.c b/crypto/hash_info.c
new file mode 100644
index 000000000000..3e7ff46f26e8
--- /dev/null
+++ b/crypto/hash_info.c
@@ -0,0 +1,56 @@
+/*
+ * Hash Info: Hash algorithms information
+ *
+ * Copyright (c) 2013 Dmitry Kasatkin <d.kasatkin@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ */
+
+#include <linux/export.h>
+#include <crypto/hash_info.h>
+
+const char *const hash_algo_name[HASH_ALGO__LAST] = {
+	[HASH_ALGO_MD4]		= "md4",
+	[HASH_ALGO_MD5]		= "md5",
+	[HASH_ALGO_SHA1]	= "sha1",
+	[HASH_ALGO_RIPE_MD_160]	= "rmd160",
+	[HASH_ALGO_SHA256]	= "sha256",
+	[HASH_ALGO_SHA384]	= "sha384",
+	[HASH_ALGO_SHA512]	= "sha512",
+	[HASH_ALGO_SHA224]	= "sha224",
+	[HASH_ALGO_RIPE_MD_128]	= "rmd128",
+	[HASH_ALGO_RIPE_MD_256]	= "rmd256",
+	[HASH_ALGO_RIPE_MD_320]	= "rmd320",
+	[HASH_ALGO_WP_256]	= "wp256",
+	[HASH_ALGO_WP_384]	= "wp384",
+	[HASH_ALGO_WP_512]	= "wp512",
+	[HASH_ALGO_TGR_128]	= "tgr128",
+	[HASH_ALGO_TGR_160]	= "tgr160",
+	[HASH_ALGO_TGR_192]	= "tgr192",
+};
+EXPORT_SYMBOL_GPL(hash_algo_name);
+
+const int hash_digest_size[HASH_ALGO__LAST] = {
+	[HASH_ALGO_MD4]		= MD5_DIGEST_SIZE,
+	[HASH_ALGO_MD5]		= MD5_DIGEST_SIZE,
+	[HASH_ALGO_SHA1]	= SHA1_DIGEST_SIZE,
+	[HASH_ALGO_RIPE_MD_160]	= RMD160_DIGEST_SIZE,
+	[HASH_ALGO_SHA256]	= SHA256_DIGEST_SIZE,
+	[HASH_ALGO_SHA384]	= SHA384_DIGEST_SIZE,
+	[HASH_ALGO_SHA512]	= SHA512_DIGEST_SIZE,
+	[HASH_ALGO_SHA224]	= SHA224_DIGEST_SIZE,
+	[HASH_ALGO_RIPE_MD_128]	= RMD128_DIGEST_SIZE,
+	[HASH_ALGO_RIPE_MD_256]	= RMD256_DIGEST_SIZE,
+	[HASH_ALGO_RIPE_MD_320]	= RMD320_DIGEST_SIZE,
+	[HASH_ALGO_WP_256]	= WP256_DIGEST_SIZE,
+	[HASH_ALGO_WP_384]	= WP384_DIGEST_SIZE,
+	[HASH_ALGO_WP_512]	= WP512_DIGEST_SIZE,
+	[HASH_ALGO_TGR_128]	= TGR128_DIGEST_SIZE,
+	[HASH_ALGO_TGR_160]	= TGR160_DIGEST_SIZE,
+	[HASH_ALGO_TGR_192]	= TGR192_DIGEST_SIZE,
+};
+EXPORT_SYMBOL_GPL(hash_digest_size);
diff --git a/include/crypto/hash_info.h b/include/crypto/hash_info.h
new file mode 100644
index 000000000000..e1e5a3e5dd1b
--- /dev/null
+++ b/include/crypto/hash_info.h
@@ -0,0 +1,40 @@
+/*
+ * Hash Info: Hash algorithms information
+ *
+ * Copyright (c) 2013 Dmitry Kasatkin <d.kasatkin@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ */
+
+#ifndef _CRYPTO_HASH_INFO_H
+#define _CRYPTO_HASH_INFO_H
+
+#include <crypto/sha.h>
+#include <crypto/md5.h>
+
+#include <uapi/linux/hash_info.h>
+
+/* not defined in include/crypto/ */
+#define RMD128_DIGEST_SIZE      16
+#define RMD160_DIGEST_SIZE	20
+#define RMD256_DIGEST_SIZE      32
+#define RMD320_DIGEST_SIZE      40
+
+/* not defined in include/crypto/ */
+#define WP512_DIGEST_SIZE	64
+#define WP384_DIGEST_SIZE	48
+#define WP256_DIGEST_SIZE	32
+
+/* not defined in include/crypto/ */
+#define TGR128_DIGEST_SIZE 16
+#define TGR160_DIGEST_SIZE 20
+#define TGR192_DIGEST_SIZE 24
+
+extern const char *const hash_algo_name[HASH_ALGO__LAST];
+extern const int hash_digest_size[HASH_ALGO__LAST];
+
+#endif /* _CRYPTO_HASH_INFO_H */
diff --git a/include/uapi/linux/hash_info.h b/include/uapi/linux/hash_info.h
new file mode 100644
index 000000000000..ca18c45f8304
--- /dev/null
+++ b/include/uapi/linux/hash_info.h
@@ -0,0 +1,37 @@
+/*
+ * Hash Info: Hash algorithms information
+ *
+ * Copyright (c) 2013 Dmitry Kasatkin <d.kasatkin@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ */
+
+#ifndef _UAPI_LINUX_HASH_INFO_H
+#define _UAPI_LINUX_HASH_INFO_H
+
+enum hash_algo {
+	HASH_ALGO_MD4,
+	HASH_ALGO_MD5,
+	HASH_ALGO_SHA1,
+	HASH_ALGO_RIPE_MD_160,
+	HASH_ALGO_SHA256,
+	HASH_ALGO_SHA384,
+	HASH_ALGO_SHA512,
+	HASH_ALGO_SHA224,
+	HASH_ALGO_RIPE_MD_128,
+	HASH_ALGO_RIPE_MD_256,
+	HASH_ALGO_RIPE_MD_320,
+	HASH_ALGO_WP_256,
+	HASH_ALGO_WP_384,
+	HASH_ALGO_WP_512,
+	HASH_ALGO_TGR_128,
+	HASH_ALGO_TGR_160,
+	HASH_ALGO_TGR_192,
+	HASH_ALGO__LAST
+};
+
+#endif /* _UAPI_LINUX_HASH_INFO_H */
-- 
cgit 


From 3fe78ca2fb1d61ea598e63fcbf38aec76b36b3a8 Mon Sep 17 00:00:00 2001
From: Dmitry Kasatkin <d.kasatkin@samsung.com>
Date: Mon, 6 May 2013 15:58:15 +0300
Subject: keys: change asymmetric keys to use common hash definitions

This patch makes use of the newly defined common hash algorithm info,
replacing, for example, PKEY_HASH with HASH_ALGO.

Changelog:
- Lindent fixes - Mimi

CC: David Howells <dhowells@redhat.com>
Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 crypto/asymmetric_keys/Kconfig            |  1 +
 crypto/asymmetric_keys/public_key.c       | 12 ------------
 crypto/asymmetric_keys/rsa.c              | 14 +++++++-------
 crypto/asymmetric_keys/x509_cert_parser.c | 12 ++++++------
 crypto/asymmetric_keys/x509_parser.h      |  2 ++
 crypto/asymmetric_keys/x509_public_key.c  |  9 ++++-----
 include/crypto/public_key.h               | 18 ++++--------------
 kernel/module_signing.c                   |  8 ++++----
 8 files changed, 28 insertions(+), 48 deletions(-)

diff --git a/crypto/asymmetric_keys/Kconfig b/crypto/asymmetric_keys/Kconfig
index 862b01fe6172..82e7d6b0c276 100644
--- a/crypto/asymmetric_keys/Kconfig
+++ b/crypto/asymmetric_keys/Kconfig
@@ -13,6 +13,7 @@ config ASYMMETRIC_PUBLIC_KEY_SUBTYPE
 	tristate "Asymmetric public-key crypto algorithm subtype"
 	select MPILIB
 	select PUBLIC_KEY_ALGO_RSA
+	select CRYPTO_HASH_INFO
 	help
 	  This option provides support for asymmetric public key type handling.
 	  If signature generation and/or verification are to be used,
diff --git a/crypto/asymmetric_keys/public_key.c b/crypto/asymmetric_keys/public_key.c
index 49ac8d848ed1..97eb001960b9 100644
--- a/crypto/asymmetric_keys/public_key.c
+++ b/crypto/asymmetric_keys/public_key.c
@@ -36,18 +36,6 @@ const struct public_key_algorithm *pkey_algo[PKEY_ALGO__LAST] = {
 };
 EXPORT_SYMBOL_GPL(pkey_algo);
 
-const char *const pkey_hash_algo_name[PKEY_HASH__LAST] = {
-	[PKEY_HASH_MD4]		= "md4",
-	[PKEY_HASH_MD5]		= "md5",
-	[PKEY_HASH_SHA1]	= "sha1",
-	[PKEY_HASH_RIPE_MD_160]	= "rmd160",
-	[PKEY_HASH_SHA256]	= "sha256",
-	[PKEY_HASH_SHA384]	= "sha384",
-	[PKEY_HASH_SHA512]	= "sha512",
-	[PKEY_HASH_SHA224]	= "sha224",
-};
-EXPORT_SYMBOL_GPL(pkey_hash_algo_name);
-
 const char *const pkey_id_type_name[PKEY_ID_TYPE__LAST] = {
 	[PKEY_ID_PGP]		= "PGP",
 	[PKEY_ID_X509]		= "X509",
diff --git a/crypto/asymmetric_keys/rsa.c b/crypto/asymmetric_keys/rsa.c
index 4a6a0696f8a3..90a17f59ba28 100644
--- a/crypto/asymmetric_keys/rsa.c
+++ b/crypto/asymmetric_keys/rsa.c
@@ -73,13 +73,13 @@ static const struct {
 	size_t size;
 } RSA_ASN1_templates[PKEY_HASH__LAST] = {
 #define _(X) { RSA_digest_info_##X, sizeof(RSA_digest_info_##X) }
-	[PKEY_HASH_MD5]		= _(MD5),
-	[PKEY_HASH_SHA1]	= _(SHA1),
-	[PKEY_HASH_RIPE_MD_160]	= _(RIPE_MD_160),
-	[PKEY_HASH_SHA256]	= _(SHA256),
-	[PKEY_HASH_SHA384]	= _(SHA384),
-	[PKEY_HASH_SHA512]	= _(SHA512),
-	[PKEY_HASH_SHA224]	= _(SHA224),
+	[HASH_ALGO_MD5]		= _(MD5),
+	[HASH_ALGO_SHA1]	= _(SHA1),
+	[HASH_ALGO_RIPE_MD_160]	= _(RIPE_MD_160),
+	[HASH_ALGO_SHA256]	= _(SHA256),
+	[HASH_ALGO_SHA384]	= _(SHA384),
+	[HASH_ALGO_SHA512]	= _(SHA512),
+	[HASH_ALGO_SHA224]	= _(SHA224),
 #undef _
 };
 
diff --git a/crypto/asymmetric_keys/x509_cert_parser.c b/crypto/asymmetric_keys/x509_cert_parser.c
index 144201ccba0c..29893162497c 100644
--- a/crypto/asymmetric_keys/x509_cert_parser.c
+++ b/crypto/asymmetric_keys/x509_cert_parser.c
@@ -154,32 +154,32 @@ int x509_note_pkey_algo(void *context, size_t hdrlen,
 		return -ENOPKG; /* Unsupported combination */
 
 	case OID_md4WithRSAEncryption:
-		ctx->cert->sig.pkey_hash_algo = PKEY_HASH_MD5;
+		ctx->cert->sig.pkey_hash_algo = HASH_ALGO_MD5;
 		ctx->cert->sig.pkey_algo = PKEY_ALGO_RSA;
 		break;
 
 	case OID_sha1WithRSAEncryption:
-		ctx->cert->sig.pkey_hash_algo = PKEY_HASH_SHA1;
+		ctx->cert->sig.pkey_hash_algo = HASH_ALGO_SHA1;
 		ctx->cert->sig.pkey_algo = PKEY_ALGO_RSA;
 		break;
 
 	case OID_sha256WithRSAEncryption:
-		ctx->cert->sig.pkey_hash_algo = PKEY_HASH_SHA256;
+		ctx->cert->sig.pkey_hash_algo = HASH_ALGO_SHA256;
 		ctx->cert->sig.pkey_algo = PKEY_ALGO_RSA;
 		break;
 
 	case OID_sha384WithRSAEncryption:
-		ctx->cert->sig.pkey_hash_algo = PKEY_HASH_SHA384;
+		ctx->cert->sig.pkey_hash_algo = HASH_ALGO_SHA384;
 		ctx->cert->sig.pkey_algo = PKEY_ALGO_RSA;
 		break;
 
 	case OID_sha512WithRSAEncryption:
-		ctx->cert->sig.pkey_hash_algo = PKEY_HASH_SHA512;
+		ctx->cert->sig.pkey_hash_algo = HASH_ALGO_SHA512;
 		ctx->cert->sig.pkey_algo = PKEY_ALGO_RSA;
 		break;
 
 	case OID_sha224WithRSAEncryption:
-		ctx->cert->sig.pkey_hash_algo = PKEY_HASH_SHA224;
+		ctx->cert->sig.pkey_hash_algo = HASH_ALGO_SHA224;
 		ctx->cert->sig.pkey_algo = PKEY_ALGO_RSA;
 		break;
 	}
diff --git a/crypto/asymmetric_keys/x509_parser.h b/crypto/asymmetric_keys/x509_parser.h
index 87d9cc26f630..04c81bd0f3f2 100644
--- a/crypto/asymmetric_keys/x509_parser.h
+++ b/crypto/asymmetric_keys/x509_parser.h
@@ -21,6 +21,8 @@ struct x509_certificate {
 	char		*authority;		/* Authority key fingerprint as hex */
 	struct tm	valid_from;
 	struct tm	valid_to;
+	enum pkey_algo	pkey_algo : 8;		/* Public key algorithm */
+	enum hash_algo sig_hash_algo : 8;	/* Signature hash algorithm */
 	const void	*tbs;			/* Signed data */
 	unsigned	tbs_size;		/* Size of signed data */
 	unsigned	raw_sig_size;		/* Size of sigature */
diff --git a/crypto/asymmetric_keys/x509_public_key.c b/crypto/asymmetric_keys/x509_public_key.c
index 6abc27f2e8a5..0a6bfad54916 100644
--- a/crypto/asymmetric_keys/x509_public_key.c
+++ b/crypto/asymmetric_keys/x509_public_key.c
@@ -96,7 +96,7 @@ int x509_get_sig_params(struct x509_certificate *cert)
 	/* Allocate the hashing algorithm we're going to need and find out how
 	 * big the hash operational data will be.
 	 */
-	tfm = crypto_alloc_shash(pkey_hash_algo_name[cert->sig.pkey_hash_algo], 0, 0);
+	tfm = crypto_alloc_shash(hash_algo_name[cert->sig.pkey_hash_algo], 0, 0);
 	if (IS_ERR(tfm))
 		return (PTR_ERR(tfm) == -ENOENT) ? -ENOPKG : PTR_ERR(tfm);
 
@@ -199,7 +199,7 @@ static int x509_key_preparse(struct key_preparsed_payload *prep)
 	    cert->sig.pkey_hash_algo >= PKEY_HASH__LAST ||
 	    !pkey_algo[cert->pub->pkey_algo] ||
 	    !pkey_algo[cert->sig.pkey_algo] ||
-	    !pkey_hash_algo_name[cert->sig.pkey_hash_algo]) {
+	    !hash_algo_name[cert->sig.pkey_hash_algo]) {
 		ret = -ENOPKG;
 		goto error_free_cert;
 	}
@@ -213,9 +213,8 @@ static int x509_key_preparse(struct key_preparsed_payload *prep)
 		 cert->valid_to.tm_year + 1900, cert->valid_to.tm_mon + 1,
 		 cert->valid_to.tm_mday, cert->valid_to.tm_hour,
 		 cert->valid_to.tm_min,  cert->valid_to.tm_sec);
-	pr_devel("Cert Signature: %s + %s\n",
-		 pkey_algo_name[cert->sig.pkey_algo],
-		 pkey_hash_algo_name[cert->sig.pkey_hash_algo]);
+	pr_devel("Cert Signature: %s\n",
+		 hash_algo_name[cert->sig.pkey_hash_algo]);
 
 	if (!cert->fingerprint) {
 		pr_warn("Cert for '%s' must have a SubjKeyId extension\n",
diff --git a/include/crypto/public_key.h b/include/crypto/public_key.h
index b34fda4dcabf..fc09732613ad 100644
--- a/include/crypto/public_key.h
+++ b/include/crypto/public_key.h
@@ -15,6 +15,7 @@
 #define _LINUX_PUBLIC_KEY_H
 
 #include <linux/mpi.h>
+#include <crypto/hash_info.h>
 
 enum pkey_algo {
 	PKEY_ALGO_DSA,
@@ -25,19 +26,8 @@ enum pkey_algo {
 extern const char *const pkey_algo_name[PKEY_ALGO__LAST];
 extern const struct public_key_algorithm *pkey_algo[PKEY_ALGO__LAST];
 
-enum pkey_hash_algo {
-	PKEY_HASH_MD4,
-	PKEY_HASH_MD5,
-	PKEY_HASH_SHA1,
-	PKEY_HASH_RIPE_MD_160,
-	PKEY_HASH_SHA256,
-	PKEY_HASH_SHA384,
-	PKEY_HASH_SHA512,
-	PKEY_HASH_SHA224,
-	PKEY_HASH__LAST
-};
-
-extern const char *const pkey_hash_algo_name[PKEY_HASH__LAST];
+/* asymmetric key implementation supports only up to SHA224 */
+#define PKEY_HASH__LAST		(HASH_ALGO_SHA224 + 1)
 
 enum pkey_id_type {
 	PKEY_ID_PGP,		/* OpenPGP generated key ID */
@@ -91,7 +81,7 @@ struct public_key_signature {
 	u8 digest_size;			/* Number of bytes in digest */
 	u8 nr_mpi;			/* Occupancy of mpi[] */
 	enum pkey_algo pkey_algo : 8;
-	enum pkey_hash_algo pkey_hash_algo : 8;
+	enum hash_algo pkey_hash_algo : 8;
 	union {
 		MPI mpi[2];
 		struct {
diff --git a/kernel/module_signing.c b/kernel/module_signing.c
index 0b6b870dc5e4..be5b8fac4bd0 100644
--- a/kernel/module_signing.c
+++ b/kernel/module_signing.c
@@ -29,7 +29,7 @@
  */
 struct module_signature {
 	u8	algo;		/* Public-key crypto algorithm [enum pkey_algo] */
-	u8	hash;		/* Digest algorithm [enum pkey_hash_algo] */
+	u8	hash;		/* Digest algorithm [enum hash_algo] */
 	u8	id_type;	/* Key identifier type [enum pkey_id_type] */
 	u8	signer_len;	/* Length of signer's name */
 	u8	key_id_len;	/* Length of key identifier */
@@ -40,7 +40,7 @@ struct module_signature {
 /*
  * Digest the module contents.
  */
-static struct public_key_signature *mod_make_digest(enum pkey_hash_algo hash,
+static struct public_key_signature *mod_make_digest(enum hash_algo hash,
 						    const void *mod,
 						    unsigned long modlen)
 {
@@ -55,7 +55,7 @@ static struct public_key_signature *mod_make_digest(enum pkey_hash_algo hash,
 	/* Allocate the hashing algorithm we're going to need and find out how
 	 * big the hash operational data will be.
 	 */
-	tfm = crypto_alloc_shash(pkey_hash_algo_name[hash], 0, 0);
+	tfm = crypto_alloc_shash(hash_algo_name[hash], 0, 0);
 	if (IS_ERR(tfm))
 		return (PTR_ERR(tfm) == -ENOENT) ? ERR_PTR(-ENOPKG) : ERR_CAST(tfm);
 
@@ -218,7 +218,7 @@ int mod_verify_sig(const void *mod, unsigned long *_modlen)
 		return -ENOPKG;
 
 	if (ms.hash >= PKEY_HASH__LAST ||
-	    !pkey_hash_algo_name[ms.hash])
+	    !hash_algo_name[ms.hash])
 		return -ENOPKG;
 
 	key = request_asymmetric_key(sig, ms.signer_len,
-- 
cgit 


From 9e3410b764b79670a59d6c1ccdcad483b92c058c Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Wed, 23 Oct 2013 13:37:35 +0200
Subject: PowerCap: Convert class code to use dev_groups

The newly added power capping framework uses the obsolete .dev_attrs
field of struct class. However this field will be removed in 3.13, so
convert the code to use the .dev_groups field instead.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/powercap/powercap_sys.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/powercap/powercap_sys.c b/drivers/powercap/powercap_sys.c
index c22fa4c78eaa..21814f90a44b 100644
--- a/drivers/powercap/powercap_sys.c
+++ b/drivers/powercap/powercap_sys.c
@@ -472,16 +472,18 @@ static ssize_t enabled_store(struct device *dev,
 	return -ENOSYS;
 }
 
-static struct device_attribute powercap_def_attrs[] = {
-		__ATTR(enabled, S_IWUSR | S_IRUGO, enabled_show,
-							enabled_store),
-		__ATTR_NULL
+static DEVICE_ATTR_RW(enabled);
+
+static struct attribute *powercap_attrs[] = {
+	&dev_attr_enabled.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(powercap);
 
 static struct class powercap_class = {
 	.name = "powercap",
 	.dev_release = powercap_release,
-	.dev_attrs = powercap_def_attrs,
+	.dev_groups = powercap_groups,
 };
 
 struct powercap_zone *powercap_register_zone(
-- 
cgit 


From c7c8bb237fdbff932b5e431aebee5ce862ea07d1 Mon Sep 17 00:00:00 2001
From: Dmitry Kasatkin <d.kasatkin@samsung.com>
Date: Thu, 25 Apr 2013 10:43:56 +0300
Subject: ima: provide support for arbitrary hash algorithms

In preparation of supporting more hash algorithms with larger hash sizes
needed for signature verification, this patch replaces the 20 byte sized
digest, with a more flexible structure.  The new structure includes the
hash algorithm, digest size, and digest.

Changelog:
- recalculate filedata hash for the measurement list, if the signature
  hash digest size is greater than 20 bytes.
- use generic HASH_ALGO_
- make ima_calc_file_hash static
- scripts lindent and checkpatch fixes

Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 crypto/asymmetric_keys/x509_parser.h     |  2 --
 crypto/asymmetric_keys/x509_public_key.c |  3 +-
 security/integrity/ima/Kconfig           |  1 +
 security/integrity/ima/ima.h             |  7 +++--
 security/integrity/ima/ima_api.c         | 32 +++++++++++++++------
 security/integrity/ima/ima_appraise.c    | 20 +++++++------
 security/integrity/ima/ima_crypto.c      | 49 ++++++++++++++++++++++++++------
 security/integrity/ima/ima_main.c        |  6 ++--
 security/integrity/integrity.h           | 15 ++++++++--
 9 files changed, 100 insertions(+), 35 deletions(-)

diff --git a/crypto/asymmetric_keys/x509_parser.h b/crypto/asymmetric_keys/x509_parser.h
index 04c81bd0f3f2..87d9cc26f630 100644
--- a/crypto/asymmetric_keys/x509_parser.h
+++ b/crypto/asymmetric_keys/x509_parser.h
@@ -21,8 +21,6 @@ struct x509_certificate {
 	char		*authority;		/* Authority key fingerprint as hex */
 	struct tm	valid_from;
 	struct tm	valid_to;
-	enum pkey_algo	pkey_algo : 8;		/* Public key algorithm */
-	enum hash_algo sig_hash_algo : 8;	/* Signature hash algorithm */
 	const void	*tbs;			/* Signed data */
 	unsigned	tbs_size;		/* Size of signed data */
 	unsigned	raw_sig_size;		/* Size of sigature */
diff --git a/crypto/asymmetric_keys/x509_public_key.c b/crypto/asymmetric_keys/x509_public_key.c
index 0a6bfad54916..f83300b6e8c1 100644
--- a/crypto/asymmetric_keys/x509_public_key.c
+++ b/crypto/asymmetric_keys/x509_public_key.c
@@ -213,7 +213,8 @@ static int x509_key_preparse(struct key_preparsed_payload *prep)
 		 cert->valid_to.tm_year + 1900, cert->valid_to.tm_mon + 1,
 		 cert->valid_to.tm_mday, cert->valid_to.tm_hour,
 		 cert->valid_to.tm_min,  cert->valid_to.tm_sec);
-	pr_devel("Cert Signature: %s\n",
+	pr_devel("Cert Signature: %s + %s\n",
+		 pkey_algo_name[cert->sig.pkey_algo],
 		 hash_algo_name[cert->sig.pkey_hash_algo]);
 
 	if (!cert->fingerprint) {
diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig
index 39196abaff0d..e6628e783df1 100644
--- a/security/integrity/ima/Kconfig
+++ b/security/integrity/ima/Kconfig
@@ -9,6 +9,7 @@ config IMA
 	select CRYPTO_HMAC
 	select CRYPTO_MD5
 	select CRYPTO_SHA1
+	select CRYPTO_HASH_INFO
 	select TCG_TPM if HAS_IOMEM && !UML
 	select TCG_TIS if TCG_TPM && X86
 	select TCG_IBMVTPM if TCG_TPM && PPC64
diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index b3dd616560f7..eb86032f4f1e 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -39,7 +39,7 @@ enum tpm_pcrs { TPM_PCR0 = 0, TPM_PCR8 = 8 };
 /* set during initialization */
 extern int ima_initialized;
 extern int ima_used_chip;
-extern char *ima_hash;
+extern int ima_hash_algo;
 extern int ima_appraise;
 
 /* IMA inode template definition */
@@ -70,8 +70,9 @@ void ima_fs_cleanup(void);
 int ima_inode_alloc(struct inode *inode);
 int ima_add_template_entry(struct ima_template_entry *entry, int violation,
 			   const char *op, struct inode *inode);
-int ima_calc_file_hash(struct file *file, char *digest);
-int ima_calc_buffer_hash(const void *data, int len, char *digest);
+int ima_calc_file_hash(struct file *file, struct ima_digest_data *hash);
+int ima_calc_buffer_hash(const void *data, int len,
+			 struct ima_digest_data *hash);
 int ima_calc_boot_aggregate(char *digest);
 void ima_add_violation(struct inode *inode, const unsigned char *filename,
 		       const char *op, const char *cause);
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index 1c03e8f1e0e1..e531fe22e582 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -44,6 +44,7 @@ int ima_store_template(struct ima_template_entry *entry,
 	const char *op = "add_template_measure";
 	const char *audit_cause = "hashing_error";
 	int result;
+	struct ima_digest_data hash;
 
 	memset(entry->digest, 0, sizeof(entry->digest));
 	entry->template_name = IMA_TEMPLATE_NAME;
@@ -51,14 +52,14 @@ int ima_store_template(struct ima_template_entry *entry,
 
 	if (!violation) {
 		result = ima_calc_buffer_hash(&entry->template,
-						entry->template_len,
-						entry->digest);
+					      entry->template_len, &hash);
 		if (result < 0) {
 			integrity_audit_msg(AUDIT_INTEGRITY_PCR, inode,
 					    entry->template_name, op,
 					    audit_cause, result, 0);
 			return result;
 		}
+		memcpy(entry->digest, hash.digest, hash.length);
 	}
 	result = ima_add_template_entry(entry, violation, op, inode);
 	return result;
@@ -147,8 +148,9 @@ int ima_collect_measurement(struct integrity_iint_cache *iint,
 	if (!(iint->flags & IMA_COLLECTED)) {
 		u64 i_version = file_inode(file)->i_version;
 
-		iint->ima_xattr.type = IMA_XATTR_DIGEST;
-		result = ima_calc_file_hash(file, iint->ima_xattr.digest);
+		/* use default hash algorithm */
+		iint->ima_hash.algo = ima_hash_algo;
+		result = ima_calc_file_hash(file, &iint->ima_hash);
 		if (!result) {
 			iint->version = i_version;
 			iint->flags |= IMA_COLLECTED;
@@ -196,7 +198,21 @@ void ima_store_measurement(struct integrity_iint_cache *iint,
 		return;
 	}
 	memset(&entry->template, 0, sizeof(entry->template));
-	memcpy(entry->template.digest, iint->ima_xattr.digest, IMA_DIGEST_SIZE);
+	if (iint->ima_hash.algo != ima_hash_algo) {
+		struct ima_digest_data hash;
+
+		hash.algo = ima_hash_algo;
+		result = ima_calc_file_hash(file, &hash);
+		if (result)
+			integrity_audit_msg(AUDIT_INTEGRITY_DATA, inode,
+					    filename, "collect_data", "failed",
+					    result, 0);
+		else
+			memcpy(entry->template.digest, hash.digest,
+			       hash.length);
+	} else
+		memcpy(entry->template.digest, iint->ima_hash.digest,
+		       iint->ima_hash.length);
 	strcpy(entry->template.file_name,
 	       (strlen(filename) > IMA_EVENT_NAME_LEN_MAX) ?
 	       file->f_dentry->d_name.name : filename);
@@ -212,14 +228,14 @@ void ima_audit_measurement(struct integrity_iint_cache *iint,
 			   const unsigned char *filename)
 {
 	struct audit_buffer *ab;
-	char hash[(IMA_DIGEST_SIZE * 2) + 1];
+	char hash[(iint->ima_hash.length * 2) + 1];
 	int i;
 
 	if (iint->flags & IMA_AUDITED)
 		return;
 
-	for (i = 0; i < IMA_DIGEST_SIZE; i++)
-		hex_byte_pack(hash + (i * 2), iint->ima_xattr.digest[i]);
+	for (i = 0; i < iint->ima_hash.length; i++)
+		hex_byte_pack(hash + (i * 2), iint->ima_hash.digest[i]);
 	hash[i * 2] = '\0';
 
 	ab = audit_log_start(current->audit_context, GFP_KERNEL,
diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c
index e3230d6a8d96..3833b0fa7108 100644
--- a/security/integrity/ima/ima_appraise.c
+++ b/security/integrity/ima/ima_appraise.c
@@ -43,12 +43,12 @@ int ima_must_appraise(struct inode *inode, int mask, enum ima_hooks func)
 }
 
 static int ima_fix_xattr(struct dentry *dentry,
-			  struct integrity_iint_cache *iint)
+			 struct integrity_iint_cache *iint)
 {
-	iint->ima_xattr.type = IMA_XATTR_DIGEST;
+	iint->ima_hash.type = IMA_XATTR_DIGEST;
 	return __vfs_setxattr_noperm(dentry, XATTR_NAME_IMA,
-				     (u8 *)&iint->ima_xattr,
-				      sizeof(iint->ima_xattr), 0);
+				     &iint->ima_hash.type,
+				     1 + iint->ima_hash.length, 0);
 }
 
 /* Return specific func appraised cached result */
@@ -159,8 +159,12 @@ int ima_appraise_measurement(int func, struct integrity_iint_cache *iint,
 			status = INTEGRITY_FAIL;
 			break;
 		}
-		rc = memcmp(xattr_value->digest, iint->ima_xattr.digest,
-			    IMA_DIGEST_SIZE);
+		if (rc - 1 == iint->ima_hash.length)
+			rc = memcmp(xattr_value->digest,
+				    iint->ima_hash.digest,
+				    iint->ima_hash.length);
+		else
+			rc = -EINVAL;
 		if (rc) {
 			cause = "invalid-hash";
 			status = INTEGRITY_FAIL;
@@ -172,8 +176,8 @@ int ima_appraise_measurement(int func, struct integrity_iint_cache *iint,
 		iint->flags |= IMA_DIGSIG;
 		rc = integrity_digsig_verify(INTEGRITY_KEYRING_IMA,
 					     xattr_value->digest, rc - 1,
-					     iint->ima_xattr.digest,
-					     IMA_DIGEST_SIZE);
+					     iint->ima_hash.digest,
+					     iint->ima_hash.length);
 		if (rc == -EOPNOTSUPP) {
 			status = INTEGRITY_UNKNOWN;
 		} else if (rc) {
diff --git a/security/integrity/ima/ima_crypto.c b/security/integrity/ima/ima_crypto.c
index a02e0791cf15..2fd178651467 100644
--- a/security/integrity/ima/ima_crypto.c
+++ b/security/integrity/ima/ima_crypto.c
@@ -20,6 +20,7 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <crypto/hash.h>
+#include <crypto/hash_info.h>
 #include "ima.h"
 
 static struct crypto_shash *ima_shash_tfm;
@@ -28,10 +29,11 @@ int ima_init_crypto(void)
 {
 	long rc;
 
-	ima_shash_tfm = crypto_alloc_shash(ima_hash, 0, 0);
+	ima_shash_tfm = crypto_alloc_shash(hash_algo_name[ima_hash_algo], 0, 0);
 	if (IS_ERR(ima_shash_tfm)) {
 		rc = PTR_ERR(ima_shash_tfm);
-		pr_err("Can not allocate %s (reason: %ld)\n", ima_hash, rc);
+		pr_err("Can not allocate %s (reason: %ld)\n",
+		       hash_algo_name[ima_hash_algo], rc);
 		return rc;
 	}
 	return 0;
@@ -40,17 +42,19 @@ int ima_init_crypto(void)
 /*
  * Calculate the MD5/SHA1 file digest
  */
-int ima_calc_file_hash(struct file *file, char *digest)
+static int ima_calc_file_hash_tfm(struct file *file,
+				  struct ima_digest_data *hash,
+				  struct crypto_shash *tfm)
 {
 	loff_t i_size, offset = 0;
 	char *rbuf;
 	int rc, read = 0;
 	struct {
 		struct shash_desc shash;
-		char ctx[crypto_shash_descsize(ima_shash_tfm)];
+		char ctx[crypto_shash_descsize(tfm)];
 	} desc;
 
-	desc.shash.tfm = ima_shash_tfm;
+	desc.shash.tfm = tfm;
 	desc.shash.flags = 0;
 
 	rc = crypto_shash_init(&desc.shash);
@@ -85,17 +89,42 @@ int ima_calc_file_hash(struct file *file, char *digest)
 	}
 	kfree(rbuf);
 	if (!rc)
-		rc = crypto_shash_final(&desc.shash, digest);
+		rc = crypto_shash_final(&desc.shash, hash->digest);
 	if (read)
 		file->f_mode &= ~FMODE_READ;
 out:
 	return rc;
 }
 
+int ima_calc_file_hash(struct file *file, struct ima_digest_data *hash)
+{
+	struct crypto_shash *tfm = ima_shash_tfm;
+	int rc;
+
+	if (hash->algo != ima_hash_algo && hash->algo < HASH_ALGO__LAST) {
+		tfm = crypto_alloc_shash(hash_algo_name[hash->algo], 0, 0);
+		if (IS_ERR(tfm)) {
+			rc = PTR_ERR(tfm);
+			pr_err("Can not allocate %s (reason: %d)\n",
+			       hash_algo_name[hash->algo], rc);
+			return rc;
+		}
+	}
+
+	hash->length = crypto_shash_digestsize(tfm);
+
+	rc = ima_calc_file_hash_tfm(file, hash, tfm);
+
+	if (tfm != ima_shash_tfm)
+		crypto_free_shash(tfm);
+
+	return rc;
+}
+
 /*
  * Calculate the hash of a given buffer
  */
-int ima_calc_buffer_hash(const void *data, int len, char *digest)
+int ima_calc_buffer_hash(const void *buf, int len, struct ima_digest_data *hash)
 {
 	struct {
 		struct shash_desc shash;
@@ -105,7 +134,11 @@ int ima_calc_buffer_hash(const void *data, int len, char *digest)
 	desc.shash.tfm = ima_shash_tfm;
 	desc.shash.flags = 0;
 
-	return crypto_shash_digest(&desc.shash, data, len, digest);
+	/* this function uses default algo */
+	hash->algo = ima_hash_algo;
+	hash->length = crypto_shash_digestsize(ima_shash_tfm);
+
+	return crypto_shash_digest(&desc.shash, buf, len, hash->digest);
 }
 
 static void __init ima_pcrread(int idx, u8 *pcr)
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 0f359df6344c..7708c2120d9c 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -24,6 +24,7 @@
 #include <linux/slab.h>
 #include <linux/xattr.h>
 #include <linux/ima.h>
+#include <crypto/hash_info.h>
 
 #include "ima.h"
 
@@ -35,11 +36,12 @@ int ima_appraise = IMA_APPRAISE_ENFORCE;
 int ima_appraise;
 #endif
 
-char *ima_hash = "sha1";
+int ima_hash_algo = HASH_ALGO_SHA1;
+
 static int __init hash_setup(char *str)
 {
 	if (strncmp(str, "md5", 3) == 0)
-		ima_hash = "md5";
+		ima_hash_algo = HASH_ALGO_MD5;
 	return 1;
 }
 __setup("ima_hash=", hash_setup);
diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h
index f86731649f54..0b02ea868e30 100644
--- a/security/integrity/integrity.h
+++ b/security/integrity/integrity.h
@@ -59,20 +59,29 @@ enum evm_ima_xattr_type {
 struct evm_ima_xattr_data {
 	u8 type;
 	u8 digest[SHA1_DIGEST_SIZE];
-}  __attribute__((packed));
+} __packed;
+
+#define IMA_MAX_DIGEST_SIZE	64
+
+struct ima_digest_data {
+	u8 algo;
+	u8 length;
+	u8 type;
+	u8 digest[IMA_MAX_DIGEST_SIZE];
+} __packed;
 
 /* integrity data associated with an inode */
 struct integrity_iint_cache {
-	struct rb_node rb_node; /* rooted in integrity_iint_tree */
+	struct rb_node rb_node;	/* rooted in integrity_iint_tree */
 	struct inode *inode;	/* back pointer to inode in question */
 	u64 version;		/* track inode changes */
 	unsigned long flags;
-	struct evm_ima_xattr_data ima_xattr;
 	enum integrity_status ima_file_status:4;
 	enum integrity_status ima_mmap_status:4;
 	enum integrity_status ima_bprm_status:4;
 	enum integrity_status ima_module_status:4;
 	enum integrity_status evm_status:4;
+	struct ima_digest_data ima_hash;
 };
 
 /* rbtree tree calls to lookup, insert, delete
-- 
cgit 


From d3634d0f426bdeb433cb288bdbb0a5e16cf3dbbf Mon Sep 17 00:00:00 2001
From: Dmitry Kasatkin <d.kasatkin@samsung.com>
Date: Thu, 25 Apr 2013 10:44:04 +0300
Subject: ima: read and use signature hash algorithm

All files on the filesystem, currently, are hashed using the same hash
algorithm.  In preparation for files from different packages being
signed using different hash algorithms, this patch adds support for
reading the signature hash algorithm from the 'security.ima' extended
attribute and calculates the appropriate file data hash based on it.

Changelog:
- fix scripts Lindent and checkpatch msgs - Mimi
- fix md5 support for older version, which occupied 20 bytes in the
  xattr, not the expected 16 bytes.  Fix the comparison to compare
  only the first 16 bytes.

Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 security/integrity/digsig_asymmetric.c | 11 ---------
 security/integrity/ima/ima.h           | 29 +++++++++++++++++++---
 security/integrity/ima/ima_api.c       | 12 ++++++++-
 security/integrity/ima/ima_appraise.c  | 45 ++++++++++++++++++++++++++++------
 security/integrity/ima/ima_main.c      | 11 +++++++--
 security/integrity/integrity.h         | 11 +++++++++
 6 files changed, 94 insertions(+), 25 deletions(-)

diff --git a/security/integrity/digsig_asymmetric.c b/security/integrity/digsig_asymmetric.c
index b4754667659d..9eae4809006b 100644
--- a/security/integrity/digsig_asymmetric.c
+++ b/security/integrity/digsig_asymmetric.c
@@ -19,17 +19,6 @@
 
 #include "integrity.h"
 
-/*
- * signature format v2 - for using with asymmetric keys
- */
-struct signature_v2_hdr {
-	uint8_t version;	/* signature format version */
-	uint8_t	hash_algo;	/* Digest algorithm [enum pkey_hash_algo] */
-	uint32_t keyid;		/* IMA key identifier - not X509/PGP specific*/
-	uint16_t sig_size;	/* signature size */
-	uint8_t sig[0];		/* signature payload */
-} __packed;
-
 /*
  * Request an asymmetric key.
  */
diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index eb86032f4f1e..efcdef2bf1bc 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -99,7 +99,9 @@ static inline unsigned long ima_hash_key(u8 *digest)
 int ima_get_action(struct inode *inode, int mask, int function);
 int ima_must_measure(struct inode *inode, int mask, int function);
 int ima_collect_measurement(struct integrity_iint_cache *iint,
-			    struct file *file);
+			    struct file *file,
+			    struct evm_ima_xattr_data **xattr_value,
+			    int *xattr_len);
 void ima_store_measurement(struct integrity_iint_cache *iint, struct file *file,
 			   const unsigned char *filename);
 void ima_audit_measurement(struct integrity_iint_cache *iint,
@@ -132,17 +134,25 @@ void ima_delete_rules(void);
 
 #ifdef CONFIG_IMA_APPRAISE
 int ima_appraise_measurement(int func, struct integrity_iint_cache *iint,
-			     struct file *file, const unsigned char *filename);
+			     struct file *file, const unsigned char *filename,
+			     struct evm_ima_xattr_data *xattr_value,
+			     int xattr_len);
 int ima_must_appraise(struct inode *inode, int mask, enum ima_hooks func);
 void ima_update_xattr(struct integrity_iint_cache *iint, struct file *file);
 enum integrity_status ima_get_cache_status(struct integrity_iint_cache *iint,
 					   int func);
+void ima_get_hash_algo(struct evm_ima_xattr_data *xattr_value, int xattr_len,
+		       struct ima_digest_data *hash);
+int ima_read_xattr(struct dentry *dentry,
+		   struct evm_ima_xattr_data **xattr_value);
 
 #else
 static inline int ima_appraise_measurement(int func,
 					   struct integrity_iint_cache *iint,
 					   struct file *file,
-					   const unsigned char *filename)
+					   const unsigned char *filename,
+					   struct evm_ima_xattr_data *xattr_value,
+					   int xattr_len)
 {
 	return INTEGRITY_UNKNOWN;
 }
@@ -163,6 +173,19 @@ static inline enum integrity_status ima_get_cache_status(struct integrity_iint_c
 {
 	return INTEGRITY_UNKNOWN;
 }
+
+static inline void ima_get_hash_algo(struct evm_ima_xattr_data *xattr_value,
+				     int xattr_len,
+				     struct ima_digest_data *hash)
+{
+}
+
+static inline int ima_read_xattr(struct dentry *dentry,
+				 struct evm_ima_xattr_data **xattr_value)
+{
+	return 0;
+}
+
 #endif
 
 /* LSM based policy rules require audit */
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index e531fe22e582..1dba98e2d7e9 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -139,17 +139,27 @@ int ima_must_measure(struct inode *inode, int mask, int function)
  * Return 0 on success, error code otherwise
  */
 int ima_collect_measurement(struct integrity_iint_cache *iint,
-			    struct file *file)
+			    struct file *file,
+			    struct evm_ima_xattr_data **xattr_value,
+			    int *xattr_len)
 {
 	struct inode *inode = file_inode(file);
 	const char *filename = file->f_dentry->d_name.name;
 	int result = 0;
 
+	if (xattr_value)
+		*xattr_len = ima_read_xattr(file->f_dentry, xattr_value);
+
 	if (!(iint->flags & IMA_COLLECTED)) {
 		u64 i_version = file_inode(file)->i_version;
 
 		/* use default hash algorithm */
 		iint->ima_hash.algo = ima_hash_algo;
+
+		if (xattr_value)
+			ima_get_hash_algo(*xattr_value, *xattr_len,
+					  &iint->ima_hash);
+
 		result = ima_calc_file_hash(file, &iint->ima_hash);
 		if (!result) {
 			iint->version = i_version;
diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c
index 3833b0fa7108..00708a3052cc 100644
--- a/security/integrity/ima/ima_appraise.c
+++ b/security/integrity/ima/ima_appraise.c
@@ -107,6 +107,34 @@ static void ima_cache_flags(struct integrity_iint_cache *iint, int func)
 	}
 }
 
+void ima_get_hash_algo(struct evm_ima_xattr_data *xattr_value, int xattr_len,
+		       struct ima_digest_data *hash)
+{
+	struct signature_v2_hdr *sig;
+
+	if (!xattr_value || xattr_len < 0 || xattr_len <= 1 + sizeof(*sig))
+		return;
+
+	sig = (typeof(sig)) xattr_value->digest;
+
+	if (xattr_value->type != EVM_IMA_XATTR_DIGSIG || sig->version != 2)
+		return;
+
+	hash->algo = sig->hash_algo;
+}
+
+int ima_read_xattr(struct dentry *dentry,
+		   struct evm_ima_xattr_data **xattr_value)
+{
+	struct inode *inode = dentry->d_inode;
+
+	if (!inode->i_op->getxattr)
+		return 0;
+
+	return vfs_getxattr_alloc(dentry, XATTR_NAME_IMA, (char **)xattr_value,
+				  0, GFP_NOFS);
+}
+
 /*
  * ima_appraise_measurement - appraise file measurement
  *
@@ -116,23 +144,22 @@ static void ima_cache_flags(struct integrity_iint_cache *iint, int func)
  * Return 0 on success, error code otherwise
  */
 int ima_appraise_measurement(int func, struct integrity_iint_cache *iint,
-			     struct file *file, const unsigned char *filename)
+			     struct file *file, const unsigned char *filename,
+			     struct evm_ima_xattr_data *xattr_value,
+			     int xattr_len)
 {
 	struct dentry *dentry = file->f_dentry;
 	struct inode *inode = dentry->d_inode;
-	struct evm_ima_xattr_data *xattr_value = NULL;
 	enum integrity_status status = INTEGRITY_UNKNOWN;
 	const char *op = "appraise_data";
 	char *cause = "unknown";
-	int rc;
+	int rc = xattr_len;
 
 	if (!ima_appraise)
 		return 0;
 	if (!inode->i_op->getxattr)
 		return INTEGRITY_UNKNOWN;
 
-	rc = vfs_getxattr_alloc(dentry, XATTR_NAME_IMA, (char **)&xattr_value,
-				0, GFP_NOFS);
 	if (rc <= 0) {
 		if (rc && rc != -ENODATA)
 			goto out;
@@ -159,7 +186,10 @@ int ima_appraise_measurement(int func, struct integrity_iint_cache *iint,
 			status = INTEGRITY_FAIL;
 			break;
 		}
-		if (rc - 1 == iint->ima_hash.length)
+		if (xattr_len - 1 >= iint->ima_hash.length)
+			/* xattr length may be longer. md5 hash in previous
+			   version occupied 20 bytes in xattr, instead of 16
+			 */
 			rc = memcmp(xattr_value->digest,
 				    iint->ima_hash.digest,
 				    iint->ima_hash.length);
@@ -207,7 +237,6 @@ out:
 		ima_cache_flags(iint, func);
 	}
 	ima_set_cache_status(iint, func, status);
-	kfree(xattr_value);
 	return status;
 }
 
@@ -223,7 +252,7 @@ void ima_update_xattr(struct integrity_iint_cache *iint, struct file *file)
 	if (iint->flags & IMA_DIGSIG)
 		return;
 
-	rc = ima_collect_measurement(iint, file);
+	rc = ima_collect_measurement(iint, file, NULL, NULL);
 	if (rc < 0)
 		return;
 
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 7708c2120d9c..95b5df2c6501 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -149,6 +149,8 @@ static int process_measurement(struct file *file, const char *filename,
 	char *pathbuf = NULL;
 	const char *pathname = NULL;
 	int rc = -ENOMEM, action, must_appraise, _func;
+	struct evm_ima_xattr_data *xattr_value = NULL, **xattr_ptr = NULL;
+	int xattr_len = 0;
 
 	if (!ima_initialized || !S_ISREG(inode->i_mode))
 		return 0;
@@ -187,7 +189,10 @@ static int process_measurement(struct file *file, const char *filename,
 		goto out_digsig;
 	}
 
-	rc = ima_collect_measurement(iint, file);
+	if (action & IMA_APPRAISE_SUBMASK)
+		xattr_ptr = &xattr_value;
+
+	rc = ima_collect_measurement(iint, file, xattr_ptr, &xattr_len);
 	if (rc != 0)
 		goto out_digsig;
 
@@ -198,7 +203,8 @@ static int process_measurement(struct file *file, const char *filename,
 	if (action & IMA_MEASURE)
 		ima_store_measurement(iint, file, pathname);
 	if (action & IMA_APPRAISE_SUBMASK)
-		rc = ima_appraise_measurement(_func, iint, file, pathname);
+		rc = ima_appraise_measurement(_func, iint, file, pathname,
+					      xattr_value, xattr_len);
 	if (action & IMA_AUDIT)
 		ima_audit_measurement(iint, pathname);
 	kfree(pathbuf);
@@ -207,6 +213,7 @@ out_digsig:
 		rc = -EACCES;
 out:
 	mutex_unlock(&inode->i_mutex);
+	kfree(xattr_value);
 	if ((rc && must_appraise) && (ima_appraise & IMA_APPRAISE_ENFORCE))
 		return -EACCES;
 	return 0;
diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h
index 0b02ea868e30..ea2318983d97 100644
--- a/security/integrity/integrity.h
+++ b/security/integrity/integrity.h
@@ -70,6 +70,17 @@ struct ima_digest_data {
 	u8 digest[IMA_MAX_DIGEST_SIZE];
 } __packed;
 
+/*
+ * signature format v2 - for using with asymmetric keys
+ */
+struct signature_v2_hdr {
+	uint8_t version;	/* signature format version */
+	uint8_t	hash_algo;	/* Digest algorithm [enum pkey_hash_algo] */
+	uint32_t keyid;		/* IMA key identifier - not X509/PGP specific */
+	uint16_t sig_size;	/* signature size */
+	uint8_t sig[0];		/* signature payload */
+} __packed;
+
 /* integrity data associated with an inode */
 struct integrity_iint_cache {
 	struct rb_node rb_node;	/* rooted in integrity_iint_tree */
-- 
cgit 


From b1aaab22e263d0cca1effe319b7d2bf895444219 Mon Sep 17 00:00:00 2001
From: Dmitry Kasatkin <d.kasatkin@samsung.com>
Date: Thu, 10 Oct 2013 16:12:03 +0900
Subject: ima: pass full xattr with the signature

For possibility to use xattr type for new signature formats,
pass full xattr to the signature verification function.

Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 security/integrity/digsig.c           | 5 +++--
 security/integrity/evm/evm_main.c     | 4 ++--
 security/integrity/ima/ima_appraise.c | 2 +-
 security/integrity/integrity.h        | 1 +
 4 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/security/integrity/digsig.c b/security/integrity/digsig.c
index 198e60903685..b4af4ebc5be2 100644
--- a/security/integrity/digsig.c
+++ b/security/integrity/digsig.c
@@ -44,9 +44,10 @@ int integrity_digsig_verify(const unsigned int id, const char *sig, int siglen,
 		}
 	}
 
-	switch (sig[0]) {
+	switch (sig[1]) {
 	case 1:
-		return digsig_verify(keyring[id], sig, siglen,
+		/* v1 API expect signature without xattr type */
+		return digsig_verify(keyring[id], sig + 1, siglen - 1,
 				     digest, digestlen);
 	case 2:
 		return asymmetric_verify(keyring[id], sig, siglen,
diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c
index af9b6852f4e1..336b3ddfe63f 100644
--- a/security/integrity/evm/evm_main.c
+++ b/security/integrity/evm/evm_main.c
@@ -123,7 +123,7 @@ static enum integrity_status evm_verify_hmac(struct dentry *dentry,
 		goto out;
 	}
 
-	xattr_len = rc - 1;
+	xattr_len = rc;
 
 	/* check value type */
 	switch (xattr_data->type) {
@@ -143,7 +143,7 @@ static enum integrity_status evm_verify_hmac(struct dentry *dentry,
 		if (rc)
 			break;
 		rc = integrity_digsig_verify(INTEGRITY_KEYRING_EVM,
-					xattr_data->digest, xattr_len,
+					(const char *)xattr_data, xattr_len,
 					calc.digest, sizeof(calc.digest));
 		if (!rc) {
 			/* we probably want to replace rsa with hmac here */
diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c
index 00708a3052cc..e1865a6e80ec 100644
--- a/security/integrity/ima/ima_appraise.c
+++ b/security/integrity/ima/ima_appraise.c
@@ -205,7 +205,7 @@ int ima_appraise_measurement(int func, struct integrity_iint_cache *iint,
 	case EVM_IMA_XATTR_DIGSIG:
 		iint->flags |= IMA_DIGSIG;
 		rc = integrity_digsig_verify(INTEGRITY_KEYRING_IMA,
-					     xattr_value->digest, rc - 1,
+					     (const char *)xattr_value, rc,
 					     iint->ima_hash.digest,
 					     iint->ima_hash.length);
 		if (rc == -EOPNOTSUPP) {
diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h
index ea2318983d97..aead6b2b5488 100644
--- a/security/integrity/integrity.h
+++ b/security/integrity/integrity.h
@@ -74,6 +74,7 @@ struct ima_digest_data {
  * signature format v2 - for using with asymmetric keys
  */
 struct signature_v2_hdr {
+	uint8_t type;		/* xattr type */
 	uint8_t version;	/* signature format version */
 	uint8_t	hash_algo;	/* Digest algorithm [enum pkey_hash_algo] */
 	uint32_t keyid;		/* IMA key identifier - not X509/PGP specific */
-- 
cgit 


From a35c3fb6490cc1d3446e4781693408100113c4fb Mon Sep 17 00:00:00 2001
From: Dmitry Kasatkin <d.kasatkin@samsung.com>
Date: Thu, 25 Apr 2013 10:44:04 +0300
Subject: ima: use dynamically allocated hash storage

For each inode in the IMA policy, an iint is allocated.  To support
larger hash digests, the iint digest size changed from 20 bytes to
the maximum supported hash digest size.  Instead of allocating the
maximum size, which most likely is not needed, this patch dynamically
allocates the needed hash storage.

Changelog:
- fix krealloc bug

Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 security/integrity/iint.c             |  2 ++
 security/integrity/ima/ima_api.c      | 57 +++++++++++++++++++++++------------
 security/integrity/ima/ima_appraise.c | 16 +++++-----
 security/integrity/integrity.h        |  4 +--
 4 files changed, 49 insertions(+), 30 deletions(-)

diff --git a/security/integrity/iint.c b/security/integrity/iint.c
index 74522dbd10a6..c49d3f14cbec 100644
--- a/security/integrity/iint.c
+++ b/security/integrity/iint.c
@@ -70,6 +70,8 @@ struct integrity_iint_cache *integrity_iint_find(struct inode *inode)
 
 static void iint_free(struct integrity_iint_cache *iint)
 {
+	kfree(iint->ima_hash);
+	iint->ima_hash = NULL;
 	iint->version = 0;
 	iint->flags = 0UL;
 	iint->ima_file_status = INTEGRITY_UNKNOWN;
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index 1dba98e2d7e9..5a7942e20814 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -44,7 +44,10 @@ int ima_store_template(struct ima_template_entry *entry,
 	const char *op = "add_template_measure";
 	const char *audit_cause = "hashing_error";
 	int result;
-	struct ima_digest_data hash;
+	struct {
+		struct ima_digest_data hdr;
+		char digest[IMA_MAX_DIGEST_SIZE];
+	} hash;
 
 	memset(entry->digest, 0, sizeof(entry->digest));
 	entry->template_name = IMA_TEMPLATE_NAME;
@@ -52,14 +55,14 @@ int ima_store_template(struct ima_template_entry *entry,
 
 	if (!violation) {
 		result = ima_calc_buffer_hash(&entry->template,
-					      entry->template_len, &hash);
+					      entry->template_len, &hash.hdr);
 		if (result < 0) {
 			integrity_audit_msg(AUDIT_INTEGRITY_PCR, inode,
 					    entry->template_name, op,
 					    audit_cause, result, 0);
 			return result;
 		}
-		memcpy(entry->digest, hash.digest, hash.length);
+		memcpy(entry->digest, hash.hdr.digest, hash.hdr.length);
 	}
 	result = ima_add_template_entry(entry, violation, op, inode);
 	return result;
@@ -146,6 +149,10 @@ int ima_collect_measurement(struct integrity_iint_cache *iint,
 	struct inode *inode = file_inode(file);
 	const char *filename = file->f_dentry->d_name.name;
 	int result = 0;
+	struct {
+		struct ima_digest_data hdr;
+		char digest[IMA_MAX_DIGEST_SIZE];
+	} hash;
 
 	if (xattr_value)
 		*xattr_len = ima_read_xattr(file->f_dentry, xattr_value);
@@ -154,16 +161,23 @@ int ima_collect_measurement(struct integrity_iint_cache *iint,
 		u64 i_version = file_inode(file)->i_version;
 
 		/* use default hash algorithm */
-		iint->ima_hash.algo = ima_hash_algo;
+		hash.hdr.algo = ima_hash_algo;
 
 		if (xattr_value)
-			ima_get_hash_algo(*xattr_value, *xattr_len,
-					  &iint->ima_hash);
+			ima_get_hash_algo(*xattr_value, *xattr_len, &hash.hdr);
 
-		result = ima_calc_file_hash(file, &iint->ima_hash);
+		result = ima_calc_file_hash(file, &hash.hdr);
 		if (!result) {
-			iint->version = i_version;
-			iint->flags |= IMA_COLLECTED;
+			int length = sizeof(hash.hdr) + hash.hdr.length;
+			void *tmpbuf = krealloc(iint->ima_hash, length,
+						GFP_NOFS);
+			if (tmpbuf) {
+				iint->ima_hash = tmpbuf;
+				memcpy(iint->ima_hash, &hash, length);
+				iint->version = i_version;
+				iint->flags |= IMA_COLLECTED;
+			} else
+				result = -ENOMEM;
 		}
 	}
 	if (result)
@@ -208,21 +222,24 @@ void ima_store_measurement(struct integrity_iint_cache *iint,
 		return;
 	}
 	memset(&entry->template, 0, sizeof(entry->template));
-	if (iint->ima_hash.algo != ima_hash_algo) {
-		struct ima_digest_data hash;
+	if (iint->ima_hash->algo != ima_hash_algo) {
+		struct {
+			struct ima_digest_data hdr;
+			char digest[IMA_MAX_DIGEST_SIZE];
+		} hash;
 
-		hash.algo = ima_hash_algo;
-		result = ima_calc_file_hash(file, &hash);
+		hash.hdr.algo = ima_hash_algo;
+		result = ima_calc_file_hash(file, &hash.hdr);
 		if (result)
 			integrity_audit_msg(AUDIT_INTEGRITY_DATA, inode,
 					    filename, "collect_data", "failed",
 					    result, 0);
 		else
-			memcpy(entry->template.digest, hash.digest,
-			       hash.length);
+			memcpy(entry->template.digest, hash.hdr.digest,
+			       hash.hdr.length);
 	} else
-		memcpy(entry->template.digest, iint->ima_hash.digest,
-		       iint->ima_hash.length);
+		memcpy(entry->template.digest, iint->ima_hash->digest,
+		       iint->ima_hash->length);
 	strcpy(entry->template.file_name,
 	       (strlen(filename) > IMA_EVENT_NAME_LEN_MAX) ?
 	       file->f_dentry->d_name.name : filename);
@@ -238,14 +255,14 @@ void ima_audit_measurement(struct integrity_iint_cache *iint,
 			   const unsigned char *filename)
 {
 	struct audit_buffer *ab;
-	char hash[(iint->ima_hash.length * 2) + 1];
+	char hash[(iint->ima_hash->length * 2) + 1];
 	int i;
 
 	if (iint->flags & IMA_AUDITED)
 		return;
 
-	for (i = 0; i < iint->ima_hash.length; i++)
-		hex_byte_pack(hash + (i * 2), iint->ima_hash.digest[i]);
+	for (i = 0; i < iint->ima_hash->length; i++)
+		hex_byte_pack(hash + (i * 2), iint->ima_hash->digest[i]);
 	hash[i * 2] = '\0';
 
 	ab = audit_log_start(current->audit_context, GFP_KERNEL,
diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c
index e1865a6e80ec..116630ca5ff3 100644
--- a/security/integrity/ima/ima_appraise.c
+++ b/security/integrity/ima/ima_appraise.c
@@ -45,10 +45,10 @@ int ima_must_appraise(struct inode *inode, int mask, enum ima_hooks func)
 static int ima_fix_xattr(struct dentry *dentry,
 			 struct integrity_iint_cache *iint)
 {
-	iint->ima_hash.type = IMA_XATTR_DIGEST;
+	iint->ima_hash->type = IMA_XATTR_DIGEST;
 	return __vfs_setxattr_noperm(dentry, XATTR_NAME_IMA,
-				     &iint->ima_hash.type,
-				     1 + iint->ima_hash.length, 0);
+				     &iint->ima_hash->type,
+				     1 + iint->ima_hash->length, 0);
 }
 
 /* Return specific func appraised cached result */
@@ -186,13 +186,13 @@ int ima_appraise_measurement(int func, struct integrity_iint_cache *iint,
 			status = INTEGRITY_FAIL;
 			break;
 		}
-		if (xattr_len - 1 >= iint->ima_hash.length)
+		if (xattr_len - 1 >= iint->ima_hash->length)
 			/* xattr length may be longer. md5 hash in previous
 			   version occupied 20 bytes in xattr, instead of 16
 			 */
 			rc = memcmp(xattr_value->digest,
-				    iint->ima_hash.digest,
-				    iint->ima_hash.length);
+				    iint->ima_hash->digest,
+				    iint->ima_hash->length);
 		else
 			rc = -EINVAL;
 		if (rc) {
@@ -206,8 +206,8 @@ int ima_appraise_measurement(int func, struct integrity_iint_cache *iint,
 		iint->flags |= IMA_DIGSIG;
 		rc = integrity_digsig_verify(INTEGRITY_KEYRING_IMA,
 					     (const char *)xattr_value, rc,
-					     iint->ima_hash.digest,
-					     iint->ima_hash.length);
+					     iint->ima_hash->digest,
+					     iint->ima_hash->length);
 		if (rc == -EOPNOTSUPP) {
 			status = INTEGRITY_UNKNOWN;
 		} else if (rc) {
diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h
index aead6b2b5488..5429ca59125b 100644
--- a/security/integrity/integrity.h
+++ b/security/integrity/integrity.h
@@ -67,7 +67,7 @@ struct ima_digest_data {
 	u8 algo;
 	u8 length;
 	u8 type;
-	u8 digest[IMA_MAX_DIGEST_SIZE];
+	u8 digest[0];
 } __packed;
 
 /*
@@ -93,7 +93,7 @@ struct integrity_iint_cache {
 	enum integrity_status ima_bprm_status:4;
 	enum integrity_status ima_module_status:4;
 	enum integrity_status evm_status:4;
-	struct ima_digest_data ima_hash;
+	struct ima_digest_data *ima_hash;
 };
 
 /* rbtree tree calls to lookup, insert, delete
-- 
cgit 


From 140d802240a4ba3351494b4ab199964b96f87493 Mon Sep 17 00:00:00 2001
From: Mimi Zohar <zohar@linux.vnet.ibm.com>
Date: Mon, 11 Mar 2013 20:29:47 -0400
Subject: ima: differentiate between template hash and file data hash sizes

The TPM v1.2 limits the template hash size to 20 bytes.  This
patch differentiates between the template hash size, as defined
in the ima_template_entry, and the file data hash size, as
defined in the ima_template_data.  Subsequent patches add support
for different file data hash algorithms.

Change log:
- hash digest definition in ima_store_template() should be TPM_DIGEST_SIZE

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
---
 security/integrity/ima/ima.h        |  2 +-
 security/integrity/ima/ima_api.c    |  2 +-
 security/integrity/ima/ima_crypto.c |  4 ++--
 security/integrity/ima/ima_fs.c     | 10 +++++-----
 security/integrity/ima/ima_init.c   |  2 +-
 security/integrity/ima/ima_queue.c  |  4 ++--
 6 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index efcdef2bf1bc..52393edfbfd9 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -49,7 +49,7 @@ struct ima_template_data {
 };
 
 struct ima_template_entry {
-	u8 digest[IMA_DIGEST_SIZE];	/* sha1 or md5 measurement hash */
+	u8 digest[TPM_DIGEST_SIZE];	/* sha1 or md5 measurement hash */
 	const char *template_name;
 	int template_len;
 	struct ima_template_data template;
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index 5a7942e20814..2cc5dcc6bdeb 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -46,7 +46,7 @@ int ima_store_template(struct ima_template_entry *entry,
 	int result;
 	struct {
 		struct ima_digest_data hdr;
-		char digest[IMA_MAX_DIGEST_SIZE];
+		char digest[TPM_DIGEST_SIZE];
 	} hash;
 
 	memset(entry->digest, 0, sizeof(entry->digest));
diff --git a/security/integrity/ima/ima_crypto.c b/security/integrity/ima/ima_crypto.c
index 2fd178651467..872c6698067c 100644
--- a/security/integrity/ima/ima_crypto.c
+++ b/security/integrity/ima/ima_crypto.c
@@ -155,7 +155,7 @@ static void __init ima_pcrread(int idx, u8 *pcr)
  */
 int __init ima_calc_boot_aggregate(char *digest)
 {
-	u8 pcr_i[IMA_DIGEST_SIZE];
+	u8 pcr_i[TPM_DIGEST_SIZE];
 	int rc, i;
 	struct {
 		struct shash_desc shash;
@@ -173,7 +173,7 @@ int __init ima_calc_boot_aggregate(char *digest)
 	for (i = TPM_PCR0; i < TPM_PCR8; i++) {
 		ima_pcrread(i, pcr_i);
 		/* now accumulate with current aggregate */
-		rc = crypto_shash_update(&desc.shash, pcr_i, IMA_DIGEST_SIZE);
+		rc = crypto_shash_update(&desc.shash, pcr_i, TPM_DIGEST_SIZE);
 	}
 	if (!rc)
 		crypto_shash_final(&desc.shash, digest);
diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
index 5f0fd113433a..c35cfb5b3c5e 100644
--- a/security/integrity/ima/ima_fs.c
+++ b/security/integrity/ima/ima_fs.c
@@ -133,7 +133,7 @@ static int ima_measurements_show(struct seq_file *m, void *v)
 	ima_putc(m, &pcr, sizeof pcr);
 
 	/* 2nd: template digest */
-	ima_putc(m, e->digest, IMA_DIGEST_SIZE);
+	ima_putc(m, e->digest, TPM_DIGEST_SIZE);
 
 	/* 3rd: template name size */
 	namelen = strlen(e->template_name);
@@ -167,11 +167,11 @@ static const struct file_operations ima_measurements_ops = {
 	.release = seq_release,
 };
 
-static void ima_print_digest(struct seq_file *m, u8 *digest)
+static void ima_print_digest(struct seq_file *m, u8 *digest, int size)
 {
 	int i;
 
-	for (i = 0; i < IMA_DIGEST_SIZE; i++)
+	for (i = 0; i < size; i++)
 		seq_printf(m, "%02x", *(digest + i));
 }
 
@@ -182,7 +182,7 @@ void ima_template_show(struct seq_file *m, void *e, enum ima_show_type show)
 
 	switch (show) {
 	case IMA_SHOW_ASCII:
-		ima_print_digest(m, entry->digest);
+		ima_print_digest(m, entry->digest, IMA_DIGEST_SIZE);
 		seq_printf(m, " %s\n", entry->file_name);
 		break;
 	case IMA_SHOW_BINARY:
@@ -212,7 +212,7 @@ static int ima_ascii_measurements_show(struct seq_file *m, void *v)
 	seq_printf(m, "%2d ", CONFIG_IMA_MEASURE_PCR_IDX);
 
 	/* 2nd: SHA1 template hash */
-	ima_print_digest(m, e->digest);
+	ima_print_digest(m, e->digest, TPM_DIGEST_SIZE);
 
 	/* 3th:  template name */
 	seq_printf(m, " %s ", e->template_name);
diff --git a/security/integrity/ima/ima_init.c b/security/integrity/ima/ima_init.c
index 162ea723db3d..9d0243c10558 100644
--- a/security/integrity/ima/ima_init.c
+++ b/security/integrity/ima/ima_init.c
@@ -74,7 +74,7 @@ err_out:
 
 int __init ima_init(void)
 {
-	u8 pcr_i[IMA_DIGEST_SIZE];
+	u8 pcr_i[TPM_DIGEST_SIZE];
 	int rc;
 
 	ima_used_chip = 0;
diff --git a/security/integrity/ima/ima_queue.c b/security/integrity/ima/ima_queue.c
index ff63fe00c195..e63ff3369f10 100644
--- a/security/integrity/ima/ima_queue.c
+++ b/security/integrity/ima/ima_queue.c
@@ -50,7 +50,7 @@ static struct ima_queue_entry *ima_lookup_digest_entry(u8 *digest_value)
 	key = ima_hash_key(digest_value);
 	rcu_read_lock();
 	hlist_for_each_entry_rcu(qe, &ima_htable.queue[key], hnext) {
-		rc = memcmp(qe->entry->digest, digest_value, IMA_DIGEST_SIZE);
+		rc = memcmp(qe->entry->digest, digest_value, TPM_DIGEST_SIZE);
 		if (rc == 0) {
 			ret = qe;
 			break;
@@ -106,7 +106,7 @@ static int ima_pcr_extend(const u8 *hash)
 int ima_add_template_entry(struct ima_template_entry *entry, int violation,
 			   const char *op, struct inode *inode)
 {
-	u8 digest[IMA_DIGEST_SIZE];
+	u8 digest[TPM_DIGEST_SIZE];
 	const char *audit_cause = "hash_added";
 	char tpm_audit_cause[AUDIT_CAUSE_LEN_MAX];
 	int audit_info = 1;
-- 
cgit 


From 723326b927b675daf4223fe31d7428eca68f194b Mon Sep 17 00:00:00 2001
From: Dmitry Kasatkin <d.kasatkin@samsung.com>
Date: Thu, 4 Jul 2013 17:40:01 +0300
Subject: ima: provide dedicated hash algo allocation function

This patch provides dedicated hash algo allocation and
deallocation function which can be used by different clients.

Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 security/integrity/ima/ima_crypto.c | 43 +++++++++++++++++++++++++------------
 1 file changed, 29 insertions(+), 14 deletions(-)

diff --git a/security/integrity/ima/ima_crypto.c b/security/integrity/ima/ima_crypto.c
index 872c6698067c..e5d3ebf18436 100644
--- a/security/integrity/ima/ima_crypto.c
+++ b/security/integrity/ima/ima_crypto.c
@@ -39,6 +39,28 @@ int ima_init_crypto(void)
 	return 0;
 }
 
+static struct crypto_shash *ima_alloc_tfm(enum hash_algo algo)
+{
+	struct crypto_shash *tfm = ima_shash_tfm;
+	int rc;
+
+	if (algo != ima_hash_algo && algo < HASH_ALGO__LAST) {
+		tfm = crypto_alloc_shash(hash_algo_name[algo], 0, 0);
+		if (IS_ERR(tfm)) {
+			rc = PTR_ERR(tfm);
+			pr_err("Can not allocate %s (reason: %d)\n",
+			       hash_algo_name[algo], rc);
+		}
+	}
+	return tfm;
+}
+
+static void ima_free_tfm(struct crypto_shash *tfm)
+{
+	if (tfm != ima_shash_tfm)
+		crypto_free_shash(tfm);
+}
+
 /*
  * Calculate the MD5/SHA1 file digest
  */
@@ -57,6 +79,8 @@ static int ima_calc_file_hash_tfm(struct file *file,
 	desc.shash.tfm = tfm;
 	desc.shash.flags = 0;
 
+	hash->length = crypto_shash_digestsize(tfm);
+
 	rc = crypto_shash_init(&desc.shash);
 	if (rc != 0)
 		return rc;
@@ -98,25 +122,16 @@ out:
 
 int ima_calc_file_hash(struct file *file, struct ima_digest_data *hash)
 {
-	struct crypto_shash *tfm = ima_shash_tfm;
+	struct crypto_shash *tfm;
 	int rc;
 
-	if (hash->algo != ima_hash_algo && hash->algo < HASH_ALGO__LAST) {
-		tfm = crypto_alloc_shash(hash_algo_name[hash->algo], 0, 0);
-		if (IS_ERR(tfm)) {
-			rc = PTR_ERR(tfm);
-			pr_err("Can not allocate %s (reason: %d)\n",
-			       hash_algo_name[hash->algo], rc);
-			return rc;
-		}
-	}
-
-	hash->length = crypto_shash_digestsize(tfm);
+	tfm = ima_alloc_tfm(hash->algo);
+	if (IS_ERR(tfm))
+		return PTR_ERR(tfm);
 
 	rc = ima_calc_file_hash_tfm(file, hash, tfm);
 
-	if (tfm != ima_shash_tfm)
-		crypto_free_shash(tfm);
+	ima_free_tfm(tfm);
 
 	return rc;
 }
-- 
cgit 


From ea593993d361748e795f5eb783a5fb5144fb2df9 Mon Sep 17 00:00:00 2001
From: Dmitry Kasatkin <d.kasatkin@samsung.com>
Date: Fri, 7 Jun 2013 12:16:24 +0200
Subject: ima: support arbitrary hash algorithms in ima_calc_buffer_hash

ima_calc_buffer_hash will be used with different hash algorithms.
This patch provides support for arbitrary hash algorithms in
ima_calc_buffer_hash.

Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 security/integrity/ima/ima_api.c    |  3 +++
 security/integrity/ima/ima_crypto.c | 28 ++++++++++++++++++++++------
 2 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index 2cc5dcc6bdeb..bc1d1282a06f 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -18,6 +18,7 @@
 #include <linux/fs.h>
 #include <linux/xattr.h>
 #include <linux/evm.h>
+#include <crypto/hash_info.h>
 #include "ima.h"
 
 static const char *IMA_TEMPLATE_NAME = "ima";
@@ -54,6 +55,8 @@ int ima_store_template(struct ima_template_entry *entry,
 	entry->template_len = sizeof(entry->template);
 
 	if (!violation) {
+		/* this function uses default algo */
+		hash.hdr.algo = HASH_ALGO_SHA1;
 		result = ima_calc_buffer_hash(&entry->template,
 					      entry->template_len, &hash.hdr);
 		if (result < 0) {
diff --git a/security/integrity/ima/ima_crypto.c b/security/integrity/ima/ima_crypto.c
index e5d3ebf18436..e2be2524a372 100644
--- a/security/integrity/ima/ima_crypto.c
+++ b/security/integrity/ima/ima_crypto.c
@@ -139,23 +139,39 @@ int ima_calc_file_hash(struct file *file, struct ima_digest_data *hash)
 /*
  * Calculate the hash of a given buffer
  */
-int ima_calc_buffer_hash(const void *buf, int len, struct ima_digest_data *hash)
+static int ima_calc_buffer_hash_tfm(const void *buf, int len,
+				    struct ima_digest_data *hash,
+				    struct crypto_shash *tfm)
 {
 	struct {
 		struct shash_desc shash;
-		char ctx[crypto_shash_descsize(ima_shash_tfm)];
+		char ctx[crypto_shash_descsize(tfm)];
 	} desc;
 
-	desc.shash.tfm = ima_shash_tfm;
+	desc.shash.tfm = tfm;
 	desc.shash.flags = 0;
 
-	/* this function uses default algo */
-	hash->algo = ima_hash_algo;
-	hash->length = crypto_shash_digestsize(ima_shash_tfm);
+	hash->length = crypto_shash_digestsize(tfm);
 
 	return crypto_shash_digest(&desc.shash, buf, len, hash->digest);
 }
 
+int ima_calc_buffer_hash(const void *buf, int len, struct ima_digest_data *hash)
+{
+	struct crypto_shash *tfm;
+	int rc;
+
+	tfm = ima_alloc_tfm(hash->algo);
+	if (IS_ERR(tfm))
+		return PTR_ERR(tfm);
+
+	rc = ima_calc_buffer_hash_tfm(buf, len, hash, tfm);
+
+	ima_free_tfm(tfm);
+
+	return rc;
+}
+
 static void __init ima_pcrread(int idx, u8 *pcr)
 {
 	if (!ima_used_chip)
-- 
cgit 


From 09ef54359c4ad49c01a12503b2c510b424ecf059 Mon Sep 17 00:00:00 2001
From: Dmitry Kasatkin <d.kasatkin@samsung.com>
Date: Fri, 7 Jun 2013 12:16:25 +0200
Subject: ima: ima_calc_boot_agregate must use SHA1

With multiple hash algorithms, ima_hash_tfm is no longer guaranteed to be sha1.
Need to force to use sha1.

Changelog:
- pass ima_digest_data to ima_calc_boot_aggregate() instead of char *
  (Roberto Sassu);
- create an ima_digest_data structure in ima_add_boot_aggregate()
  (Roberto Sassu);
- pass hash->algo to ima_alloc_tfm() (Roberto Sassu, reported by Dmitry).
- "move hash definition in ima_add_boot_aggregate()" commit hunk to here.
- sparse warning fix - Fengguang Wu

Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 security/integrity/ima/ima.h        |  2 +-
 security/integrity/ima/ima_crypto.c | 24 +++++++++++++++++++++---
 security/integrity/ima/ima_init.c   | 10 +++++++++-
 3 files changed, 31 insertions(+), 5 deletions(-)

diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index 52393edfbfd9..e0e1cde6e674 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -73,7 +73,7 @@ int ima_add_template_entry(struct ima_template_entry *entry, int violation,
 int ima_calc_file_hash(struct file *file, struct ima_digest_data *hash);
 int ima_calc_buffer_hash(const void *data, int len,
 			 struct ima_digest_data *hash);
-int ima_calc_boot_aggregate(char *digest);
+int __init ima_calc_boot_aggregate(struct ima_digest_data *hash);
 void ima_add_violation(struct inode *inode, const unsigned char *filename,
 		       const char *op, const char *cause);
 int ima_init_crypto(void);
diff --git a/security/integrity/ima/ima_crypto.c b/security/integrity/ima/ima_crypto.c
index e2be2524a372..22be23f13b3d 100644
--- a/security/integrity/ima/ima_crypto.c
+++ b/security/integrity/ima/ima_crypto.c
@@ -184,16 +184,17 @@ static void __init ima_pcrread(int idx, u8 *pcr)
 /*
  * Calculate the boot aggregate hash
  */
-int __init ima_calc_boot_aggregate(char *digest)
+static int __init ima_calc_boot_aggregate_tfm(char *digest,
+					      struct crypto_shash *tfm)
 {
 	u8 pcr_i[TPM_DIGEST_SIZE];
 	int rc, i;
 	struct {
 		struct shash_desc shash;
-		char ctx[crypto_shash_descsize(ima_shash_tfm)];
+		char ctx[crypto_shash_descsize(tfm)];
 	} desc;
 
-	desc.shash.tfm = ima_shash_tfm;
+	desc.shash.tfm = tfm;
 	desc.shash.flags = 0;
 
 	rc = crypto_shash_init(&desc.shash);
@@ -210,3 +211,20 @@ int __init ima_calc_boot_aggregate(char *digest)
 		crypto_shash_final(&desc.shash, digest);
 	return rc;
 }
+
+int __init ima_calc_boot_aggregate(struct ima_digest_data *hash)
+{
+	struct crypto_shash *tfm;
+	int rc;
+
+	tfm = ima_alloc_tfm(hash->algo);
+	if (IS_ERR(tfm))
+		return PTR_ERR(tfm);
+
+	hash->length = crypto_shash_digestsize(tfm);
+	rc = ima_calc_boot_aggregate_tfm(hash->digest, tfm);
+
+	ima_free_tfm(tfm);
+
+	return rc;
+}
diff --git a/security/integrity/ima/ima_init.c b/security/integrity/ima/ima_init.c
index 9d0243c10558..77cd5005f2db 100644
--- a/security/integrity/ima/ima_init.c
+++ b/security/integrity/ima/ima_init.c
@@ -18,6 +18,7 @@
 #include <linux/scatterlist.h>
 #include <linux/slab.h>
 #include <linux/err.h>
+#include <crypto/hash_info.h>
 #include "ima.h"
 
 /* name for boot aggregate entry */
@@ -46,6 +47,10 @@ static void __init ima_add_boot_aggregate(void)
 	const char *audit_cause = "ENOMEM";
 	int result = -ENOMEM;
 	int violation = 1;
+	struct {
+		struct ima_digest_data hdr;
+		char digest[TPM_DIGEST_SIZE];
+	} hash;
 
 	entry = kmalloc(sizeof(*entry), GFP_KERNEL);
 	if (!entry)
@@ -56,12 +61,15 @@ static void __init ima_add_boot_aggregate(void)
 		IMA_EVENT_NAME_LEN_MAX);
 	if (ima_used_chip) {
 		violation = 0;
-		result = ima_calc_boot_aggregate(entry->template.digest);
+		hash.hdr.algo = HASH_ALGO_SHA1;
+		result = ima_calc_boot_aggregate(&hash.hdr);
 		if (result < 0) {
 			audit_cause = "hashing_error";
 			kfree(entry);
 			goto err_out;
 		}
+		memcpy(entry->template.digest, hash.hdr.digest,
+		       hash.hdr.length);
 	}
 	result = ima_store_template(entry, violation, NULL);
 	if (result < 0)
-- 
cgit 


From 7d802a227b7f26c89f13dab09767e6b0aebd9c9f Mon Sep 17 00:00:00 2001
From: Roberto Sassu <roberto.sassu@polito.it>
Date: Fri, 7 Jun 2013 12:16:26 +0200
Subject: ima: pass the file descriptor to ima_add_violation()

Pass the file descriptor instead of the inode to ima_add_violation(),
to make the latter consistent with ima_store_measurement() in
preparation for the new template architecture.

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 security/integrity/ima/ima.h      | 2 +-
 security/integrity/ima/ima_api.c  | 3 ++-
 security/integrity/ima/ima_main.c | 5 ++---
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index e0e1cde6e674..d7bec6f37b61 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -74,7 +74,7 @@ int ima_calc_file_hash(struct file *file, struct ima_digest_data *hash);
 int ima_calc_buffer_hash(const void *data, int len,
 			 struct ima_digest_data *hash);
 int __init ima_calc_boot_aggregate(struct ima_digest_data *hash);
-void ima_add_violation(struct inode *inode, const unsigned char *filename,
+void ima_add_violation(struct file *file, const unsigned char *filename,
 		       const char *op, const char *cause);
 int ima_init_crypto(void);
 
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index bc1d1282a06f..98160a3259fe 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -78,10 +78,11 @@ int ima_store_template(struct ima_template_entry *entry,
  * By extending the PCR with 0xFF's instead of with zeroes, the PCR
  * value is invalidated.
  */
-void ima_add_violation(struct inode *inode, const unsigned char *filename,
+void ima_add_violation(struct file *file, const unsigned char *filename,
 		       const char *op, const char *cause)
 {
 	struct ima_template_entry *entry;
+	struct inode *inode = file->f_dentry->d_inode;
 	int violation = 1;
 	int result;
 
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 95b5df2c6501..5e8b1f7becd2 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -94,10 +94,9 @@ out:
 		pathname = dentry->d_name.name;
 
 	if (send_tomtou)
-		ima_add_violation(inode, pathname,
-				  "invalid_pcr", "ToMToU");
+		ima_add_violation(file, pathname, "invalid_pcr", "ToMToU");
 	if (send_writers)
-		ima_add_violation(inode, pathname,
+		ima_add_violation(file, pathname,
 				  "invalid_pcr", "open_writers");
 	kfree(pathbuf);
 }
-- 
cgit 


From 9803d413f41db86fdf0097f1af781fe2e68f474c Mon Sep 17 00:00:00 2001
From: Roberto Sassu <roberto.sassu@polito.it>
Date: Fri, 7 Jun 2013 12:16:27 +0200
Subject: ima: pass the filename argument up to ima_add_template_entry()

Pass the filename argument to ima_add_template_entry() in order to
eliminate a dependency on template specific data (third argument of
integrity_audit_msg).

This change is required because, with the new template management
mechanism, the generation of a new measurement entry will be performed
by new specific functions (introduced in next patches) and the current IMA
code will not be aware anymore of how data is stored in the entry payload.

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 security/integrity/ima/ima.h       | 5 +++--
 security/integrity/ima/ima_api.c   | 9 +++++----
 security/integrity/ima/ima_init.c  | 3 ++-
 security/integrity/ima/ima_queue.c | 6 +++---
 4 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index d7bec6f37b61..27d2ffbd0763 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -69,7 +69,8 @@ int ima_fs_init(void);
 void ima_fs_cleanup(void);
 int ima_inode_alloc(struct inode *inode);
 int ima_add_template_entry(struct ima_template_entry *entry, int violation,
-			   const char *op, struct inode *inode);
+			   const char *op, struct inode *inode,
+			   const unsigned char *filename);
 int ima_calc_file_hash(struct file *file, struct ima_digest_data *hash);
 int ima_calc_buffer_hash(const void *data, int len,
 			 struct ima_digest_data *hash);
@@ -107,7 +108,7 @@ void ima_store_measurement(struct integrity_iint_cache *iint, struct file *file,
 void ima_audit_measurement(struct integrity_iint_cache *iint,
 			   const unsigned char *filename);
 int ima_store_template(struct ima_template_entry *entry, int violation,
-		       struct inode *inode);
+		       struct inode *inode, const unsigned char *filename);
 void ima_template_show(struct seq_file *m, void *e, enum ima_show_type show);
 const char *ima_d_path(struct path *path, char **pathbuf);
 
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index 98160a3259fe..a0fe5041310a 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -40,7 +40,8 @@ static const char *IMA_TEMPLATE_NAME = "ima";
  * Returns 0 on success, error code otherwise
  */
 int ima_store_template(struct ima_template_entry *entry,
-		       int violation, struct inode *inode)
+		       int violation, struct inode *inode,
+		       const unsigned char *filename)
 {
 	const char *op = "add_template_measure";
 	const char *audit_cause = "hashing_error";
@@ -67,7 +68,7 @@ int ima_store_template(struct ima_template_entry *entry,
 		}
 		memcpy(entry->digest, hash.hdr.digest, hash.hdr.length);
 	}
-	result = ima_add_template_entry(entry, violation, op, inode);
+	result = ima_add_template_entry(entry, violation, op, inode, filename);
 	return result;
 }
 
@@ -96,7 +97,7 @@ void ima_add_violation(struct file *file, const unsigned char *filename,
 	}
 	memset(&entry->template, 0, sizeof(entry->template));
 	strncpy(entry->template.file_name, filename, IMA_EVENT_NAME_LEN_MAX);
-	result = ima_store_template(entry, violation, inode);
+	result = ima_store_template(entry, violation, inode, filename);
 	if (result < 0)
 		kfree(entry);
 err_out:
@@ -248,7 +249,7 @@ void ima_store_measurement(struct integrity_iint_cache *iint,
 	       (strlen(filename) > IMA_EVENT_NAME_LEN_MAX) ?
 	       file->f_dentry->d_name.name : filename);
 
-	result = ima_store_template(entry, violation, inode);
+	result = ima_store_template(entry, violation, inode, filename);
 	if (!result || result == -EEXIST)
 		iint->flags |= IMA_MEASURED;
 	if (result < 0)
diff --git a/security/integrity/ima/ima_init.c b/security/integrity/ima/ima_init.c
index 77cd5005f2db..d42fac308aaa 100644
--- a/security/integrity/ima/ima_init.c
+++ b/security/integrity/ima/ima_init.c
@@ -71,7 +71,8 @@ static void __init ima_add_boot_aggregate(void)
 		memcpy(entry->template.digest, hash.hdr.digest,
 		       hash.hdr.length);
 	}
-	result = ima_store_template(entry, violation, NULL);
+	result = ima_store_template(entry, violation, NULL,
+				    boot_aggregate_name);
 	if (result < 0)
 		kfree(entry);
 	return;
diff --git a/security/integrity/ima/ima_queue.c b/security/integrity/ima/ima_queue.c
index e63ff3369f10..d85e99761f4f 100644
--- a/security/integrity/ima/ima_queue.c
+++ b/security/integrity/ima/ima_queue.c
@@ -104,7 +104,8 @@ static int ima_pcr_extend(const u8 *hash)
  * and extend the pcr.
  */
 int ima_add_template_entry(struct ima_template_entry *entry, int violation,
-			   const char *op, struct inode *inode)
+			   const char *op, struct inode *inode,
+			   const unsigned char *filename)
 {
 	u8 digest[TPM_DIGEST_SIZE];
 	const char *audit_cause = "hash_added";
@@ -141,8 +142,7 @@ int ima_add_template_entry(struct ima_template_entry *entry, int violation,
 	}
 out:
 	mutex_unlock(&ima_extend_list_mutex);
-	integrity_audit_msg(AUDIT_INTEGRITY_PCR, inode,
-			    entry->template.file_name,
+	integrity_audit_msg(AUDIT_INTEGRITY_PCR, inode, filename,
 			    op, audit_cause, result, audit_info);
 	return result;
 }
-- 
cgit 


From 7bc5f447ce9d01e19394b5399bf1a4fcebf0f8dd Mon Sep 17 00:00:00 2001
From: Roberto Sassu <roberto.sassu@polito.it>
Date: Fri, 7 Jun 2013 12:16:28 +0200
Subject: ima: define new function ima_alloc_init_template() to API

Instead of allocating and initializing the template entry from multiple
places (eg. boot aggregate, violation, and regular measurements), this
patch defines a new function called ima_alloc_init_template().  The new
function allocates and initializes the measurement entry with the inode
digest and the filename.

In respect to the current behavior, it truncates the file name passed
in the 'filename' argument if the latter's size is greater than 255 bytes
and the passed file descriptor is NULL.

Changelog:
- initialize 'hash' variable for non TPM case - Mimi
- conform to expectation for 'iint' to be defined as a pointer. - Mimi
- add missing 'file' dependency for recalculating file hash. - Mimi

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 security/integrity/ima/ima.h      |  3 ++
 security/integrity/ima/ima_api.c  | 88 ++++++++++++++++++++++++++-------------
 security/integrity/ima/ima_init.c | 24 ++++++-----
 3 files changed, 76 insertions(+), 39 deletions(-)

diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index 27d2ffbd0763..da03d3389619 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -107,6 +107,9 @@ void ima_store_measurement(struct integrity_iint_cache *iint, struct file *file,
 			   const unsigned char *filename);
 void ima_audit_measurement(struct integrity_iint_cache *iint,
 			   const unsigned char *filename);
+int ima_alloc_init_template(struct integrity_iint_cache *iint,
+			    struct file *file, const unsigned char *filename,
+			    struct ima_template_entry **entry);
 int ima_store_template(struct ima_template_entry *entry, int violation,
 		       struct inode *inode, const unsigned char *filename);
 void ima_template_show(struct seq_file *m, void *e, enum ima_show_type show);
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index a0fe5041310a..29dd43de823a 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -23,6 +23,62 @@
 
 static const char *IMA_TEMPLATE_NAME = "ima";
 
+/*
+ * ima_alloc_init_template - create and initialize a new template entry
+ */
+int ima_alloc_init_template(struct integrity_iint_cache *iint,
+			    struct file *file, const unsigned char *filename,
+			    struct ima_template_entry **entry)
+{
+	struct ima_template_entry *e;
+	int result = 0;
+
+	e = kzalloc(sizeof(**entry), GFP_NOFS);
+	if (!e)
+		return -ENOMEM;
+
+	memset(&(e)->template, 0, sizeof(e->template));
+	if (!iint)		/* IMA measurement violation entry */
+		goto out;
+
+	if (iint->ima_hash->algo != ima_hash_algo) {
+		struct inode *inode;
+		struct {
+			struct ima_digest_data hdr;
+			char digest[IMA_MAX_DIGEST_SIZE];
+		} hash;
+
+		if (!file) {
+			result = -EINVAL;
+			goto out_free;
+		}
+
+		inode = file_inode(file);
+		hash.hdr.algo = ima_hash_algo;
+		hash.hdr.length = SHA1_DIGEST_SIZE;
+		result = ima_calc_file_hash(file, &hash.hdr);
+		if (result) {
+			integrity_audit_msg(AUDIT_INTEGRITY_DATA, inode,
+					    filename, "collect_data",
+					    "failed", result, 0);
+			goto out_free;
+		} else
+			memcpy(e->template.digest, hash.hdr.digest,
+			       hash.hdr.length);
+	} else
+		memcpy(e->template.digest, iint->ima_hash->digest,
+		       iint->ima_hash->length);
+out:
+	strcpy(e->template.file_name,
+	       (strlen(filename) > IMA_EVENT_NAME_LEN_MAX && file != NULL) ?
+	       file->f_dentry->d_name.name : filename);
+	*entry = e;
+	return 0;
+out_free:
+	kfree(e);
+	return result;
+}
+
 /*
  * ima_store_template - store ima template measurements
  *
@@ -90,13 +146,11 @@ void ima_add_violation(struct file *file, const unsigned char *filename,
 	/* can overflow, only indicator */
 	atomic_long_inc(&ima_htable.violations);
 
-	entry = kmalloc(sizeof(*entry), GFP_KERNEL);
-	if (!entry) {
+	result = ima_alloc_init_template(NULL, file, filename, &entry);
+	if (result < 0) {
 		result = -ENOMEM;
 		goto err_out;
 	}
-	memset(&entry->template, 0, sizeof(entry->template));
-	strncpy(entry->template.file_name, filename, IMA_EVENT_NAME_LEN_MAX);
 	result = ima_store_template(entry, violation, inode, filename);
 	if (result < 0)
 		kfree(entry);
@@ -220,34 +274,12 @@ void ima_store_measurement(struct integrity_iint_cache *iint,
 	if (iint->flags & IMA_MEASURED)
 		return;
 
-	entry = kmalloc(sizeof(*entry), GFP_KERNEL);
-	if (!entry) {
+	result = ima_alloc_init_template(iint, file, filename, &entry);
+	if (result < 0) {
 		integrity_audit_msg(AUDIT_INTEGRITY_PCR, inode, filename,
 				    op, audit_cause, result, 0);
 		return;
 	}
-	memset(&entry->template, 0, sizeof(entry->template));
-	if (iint->ima_hash->algo != ima_hash_algo) {
-		struct {
-			struct ima_digest_data hdr;
-			char digest[IMA_MAX_DIGEST_SIZE];
-		} hash;
-
-		hash.hdr.algo = ima_hash_algo;
-		result = ima_calc_file_hash(file, &hash.hdr);
-		if (result)
-			integrity_audit_msg(AUDIT_INTEGRITY_DATA, inode,
-					    filename, "collect_data", "failed",
-					    result, 0);
-		else
-			memcpy(entry->template.digest, hash.hdr.digest,
-			       hash.hdr.length);
-	} else
-		memcpy(entry->template.digest, iint->ima_hash->digest,
-		       iint->ima_hash->length);
-	strcpy(entry->template.file_name,
-	       (strlen(filename) > IMA_EVENT_NAME_LEN_MAX) ?
-	       file->f_dentry->d_name.name : filename);
 
 	result = ima_store_template(entry, violation, inode, filename);
 	if (!result || result == -EEXIST)
diff --git a/security/integrity/ima/ima_init.c b/security/integrity/ima/ima_init.c
index d42fac308aaa..50e15e6336c4 100644
--- a/security/integrity/ima/ima_init.c
+++ b/security/integrity/ima/ima_init.c
@@ -43,34 +43,36 @@ int ima_used_chip;
 static void __init ima_add_boot_aggregate(void)
 {
 	struct ima_template_entry *entry;
+	struct integrity_iint_cache tmp_iint, *iint = &tmp_iint;
 	const char *op = "add_boot_aggregate";
 	const char *audit_cause = "ENOMEM";
 	int result = -ENOMEM;
-	int violation = 1;
+	int violation = 0;
 	struct {
 		struct ima_digest_data hdr;
 		char digest[TPM_DIGEST_SIZE];
 	} hash;
 
-	entry = kmalloc(sizeof(*entry), GFP_KERNEL);
-	if (!entry)
-		goto err_out;
+	memset(iint, 0, sizeof(*iint));
+	memset(&hash, 0, sizeof(hash));
+	iint->ima_hash = &hash.hdr;
+	iint->ima_hash->algo = HASH_ALGO_SHA1;
+	iint->ima_hash->length = SHA1_DIGEST_SIZE;
 
-	memset(&entry->template, 0, sizeof(entry->template));
-	strncpy(entry->template.file_name, boot_aggregate_name,
-		IMA_EVENT_NAME_LEN_MAX);
 	if (ima_used_chip) {
-		violation = 0;
-		hash.hdr.algo = HASH_ALGO_SHA1;
 		result = ima_calc_boot_aggregate(&hash.hdr);
 		if (result < 0) {
 			audit_cause = "hashing_error";
 			kfree(entry);
 			goto err_out;
 		}
-		memcpy(entry->template.digest, hash.hdr.digest,
-		       hash.hdr.length);
 	}
+
+	result = ima_alloc_init_template(iint, NULL, boot_aggregate_name,
+					 &entry);
+	if (result < 0)
+		return;
+
 	result = ima_store_template(entry, violation, NULL,
 				    boot_aggregate_name);
 	if (result < 0)
-- 
cgit 


From adf53a778a0a5a5dc9103509da4a9719046e5310 Mon Sep 17 00:00:00 2001
From: Roberto Sassu <roberto.sassu@polito.it>
Date: Fri, 7 Jun 2013 12:16:29 +0200
Subject: ima: new templates management mechanism
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The original 'ima' template is fixed length, containing the filedata hash
and pathname.  The filedata hash is limited to 20 bytes (md5/sha1).  The
pathname is a null terminated string, limited to 255 characters.  To
overcome these limitations and to add additional file metadata, it is
necessary to extend the current version of IMA by defining additional
templates.

The main reason to introduce this feature is that, each time a new
template is defined, the functions that generate and display the
measurement list would include the code for handling a new format and,
thus, would significantly grow over time.

This patch set solves this problem by separating the template management
from the remaining IMA code. The core of this solution is the definition
of two new data structures: a template descriptor, to determine which
information should be included in the measurement list, and a template
field, to generate and display data of a given type.

To define a new template field, developers define the field identifier
and implement two functions, init() and show(), respectively to generate
and display measurement entries.  Initially, this patch set defines the
following template fields (support for additional data types will be
added later):
 - 'd': the digest of the event (i.e. the digest of a measured file),
        calculated with the SHA1 or MD5 hash algorithm;
 - 'n': the name of the event (i.e. the file name), with size up to
        255 bytes;
 - 'd-ng': the digest of the event, calculated with an arbitrary hash
           algorithm (field format: [<hash algo>:]digest, where the digest
           prefix is shown only if the hash algorithm is not SHA1 or MD5);
 - 'n-ng': the name of the event, without size limitations.

Defining a new template descriptor requires specifying the template format,
a string of field identifiers separated by the '|' character.  This patch
set defines the following template descriptors:
 - "ima": its format is 'd|n';
 - "ima-ng" (default): its format is 'd-ng|n-ng'

Further details about the new template architecture can be found in
Documentation/security/IMA-templates.txt.

Changelog:
- don't defer calling ima_init_template() - Mimi
- don't define ima_lookup_template_desc() until used - Mimi
- squashed with documentation patch - Mimi

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 Documentation/security/00-INDEX          |   2 +
 Documentation/security/IMA-templates.txt |  87 ++++++++++++++++++++++++
 security/integrity/ima/Makefile          |   2 +-
 security/integrity/ima/ima.h             |  29 ++++++++
 security/integrity/ima/ima_init.c        |   4 ++
 security/integrity/ima/ima_template.c    | 112 +++++++++++++++++++++++++++++++
 6 files changed, 235 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/security/IMA-templates.txt
 create mode 100644 security/integrity/ima/ima_template.c

diff --git a/Documentation/security/00-INDEX b/Documentation/security/00-INDEX
index 414235c1fcfc..45c82fd3e9d3 100644
--- a/Documentation/security/00-INDEX
+++ b/Documentation/security/00-INDEX
@@ -22,3 +22,5 @@ keys.txt
 	- description of the kernel key retention service.
 tomoyo.txt
 	- documentation on the TOMOYO Linux Security Module.
+IMA-templates.txt
+	- documentation on the template management mechanism for IMA.
diff --git a/Documentation/security/IMA-templates.txt b/Documentation/security/IMA-templates.txt
new file mode 100644
index 000000000000..a777e5f1df5b
--- /dev/null
+++ b/Documentation/security/IMA-templates.txt
@@ -0,0 +1,87 @@
+                       IMA Template Management Mechanism
+
+
+==== INTRODUCTION ====
+
+The original 'ima' template is fixed length, containing the filedata hash
+and pathname. The filedata hash is limited to 20 bytes (md5/sha1).
+The pathname is a null terminated string, limited to 255 characters.
+To overcome these limitations and to add additional file metadata, it is
+necessary to extend the current version of IMA by defining additional
+templates. For example, information that could be possibly reported are
+the inode UID/GID or the LSM labels either of the inode and of the process
+that is accessing it.
+
+However, the main problem to introduce this feature is that, each time
+a new template is defined, the functions that generate and display
+the measurements list would include the code for handling a new format
+and, thus, would significantly grow over the time.
+
+The proposed solution solves this problem by separating the template
+management from the remaining IMA code. The core of this solution is the
+definition of two new data structures: a template descriptor, to determine
+which information should be included in the measurement list; a template
+field, to generate and display data of a given type.
+
+Managing templates with these structures is very simple. To support
+a new data type, developers define the field identifier and implement
+two functions, init() and show(), respectively to generate and display
+measurement entries. Defining a new template descriptor requires
+specifying the template format, a string of field identifiers separated
+by the '|' character. While in the current implementation it is possible
+to define new template descriptors only by adding their definition in the
+template specific code (ima_template.c), in a future version it will be
+possible to register a new template on a running kernel by supplying to IMA
+the desired format string. In this version, IMA initializes at boot time
+all defined template descriptors by translating the format into an array
+of template fields structures taken from the set of the supported ones.
+
+After the initialization step, IMA will call ima_alloc_init_template()
+(new function defined within the patches for the new template management
+mechanism) to generate a new measurement entry by using the template
+descriptor chosen through the kernel configuration or through the newly
+introduced 'ima_template=' kernel command line parameter. It is during this
+phase that the advantages of the new architecture are clearly shown:
+the latter function will not contain specific code to handle a given template
+but, instead, it simply calls the init() method of the template fields
+associated to the chosen template descriptor and store the result (pointer
+to allocated data and data length) in the measurement entry structure.
+
+The same mechanism is employed to display measurements entries.
+The functions ima[_ascii]_measurements_show() retrieve, for each entry,
+the template descriptor used to produce that entry and call the show()
+method for each item of the array of template fields structures.
+
+
+
+==== SUPPORTED TEMPLATE FIELDS AND DESCRIPTORS ====
+
+In the following, there is the list of supported template fields
+('<identifier>': description), that can be used to define new template
+descriptors by adding their identifier to the format string
+(support for more data types will be added later):
+
+ - 'd': the digest of the event (i.e. the digest of a measured file),
+        calculated with the SHA1 or MD5 hash algorithm;
+ - 'n': the name of the event (i.e. the file name), with size up to 255 bytes;
+ - 'd-ng': the digest of the event, calculated with an arbitrary hash
+           algorithm (field format: [<hash algo>:]digest, where the digest
+           prefix is shown only if the hash algorithm is not SHA1 or MD5);
+ - 'n-ng': the name of the event, without size limitations.
+
+
+Below, there is the list of defined template descriptors:
+ - "ima": its format is 'd|n';
+ - "ima-ng" (default): its format is 'd-ng|n-ng'.
+
+
+
+==== USE ====
+
+To specify the template descriptor to be used to generate measurement entries,
+currently the following methods are supported:
+
+ - select a template descriptor among those supported in the kernel
+   configuration ('ima-ng' is the default choice);
+ - specify a template descriptor name from the kernel command line through
+   the 'ima_template=' parameter.
diff --git a/security/integrity/ima/Makefile b/security/integrity/ima/Makefile
index 56dfee7cbf61..7fe4ae37dbea 100644
--- a/security/integrity/ima/Makefile
+++ b/security/integrity/ima/Makefile
@@ -6,5 +6,5 @@
 obj-$(CONFIG_IMA) += ima.o
 
 ima-y := ima_fs.o ima_queue.o ima_init.o ima_main.o ima_crypto.o ima_api.o \
-	 ima_policy.o
+	 ima_policy.o ima_template.o
 ima-$(CONFIG_IMA_APPRAISE) += ima_appraise.o
diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index da03d3389619..c85718f1f623 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -36,12 +36,39 @@ enum tpm_pcrs { TPM_PCR0 = 0, TPM_PCR8 = 8 };
 #define IMA_HASH_BITS 9
 #define IMA_MEASURE_HTABLE_SIZE (1 << IMA_HASH_BITS)
 
+#define IMA_TEMPLATE_FIELD_ID_MAX_LEN	16
+#define IMA_TEMPLATE_NUM_FIELDS_MAX	15
+
 /* set during initialization */
 extern int ima_initialized;
 extern int ima_used_chip;
 extern int ima_hash_algo;
 extern int ima_appraise;
 
+/* IMA template field data definition */
+struct ima_field_data {
+	u8 *data;
+	u32 len;
+};
+
+/* IMA template field definition */
+struct ima_template_field {
+	const char field_id[IMA_TEMPLATE_FIELD_ID_MAX_LEN];
+	int (*field_init) (struct integrity_iint_cache *iint, struct file *file,
+			   const unsigned char *filename,
+			   struct ima_field_data *field_data);
+	void (*field_show) (struct seq_file *m, enum ima_show_type show,
+			    struct ima_field_data *field_data);
+};
+
+/* IMA template descriptor definition */
+struct ima_template_desc {
+	char *name;
+	char *fmt;
+	int num_fields;
+	struct ima_template_field **fields;
+};
+
 /* IMA inode template definition */
 struct ima_template_data {
 	u8 digest[IMA_DIGEST_SIZE];	/* sha1/md5 measurement hash */
@@ -79,6 +106,8 @@ void ima_add_violation(struct file *file, const unsigned char *filename,
 		       const char *op, const char *cause);
 int ima_init_crypto(void);
 
+int ima_init_template(void);
+
 /*
  * used to protect h_table and sha_table
  */
diff --git a/security/integrity/ima/ima_init.c b/security/integrity/ima/ima_init.c
index 50e15e6336c4..f84aec5412f3 100644
--- a/security/integrity/ima/ima_init.c
+++ b/security/integrity/ima/ima_init.c
@@ -99,6 +99,10 @@ int __init ima_init(void)
 	rc = ima_init_crypto();
 	if (rc)
 		return rc;
+	rc = ima_init_template();
+	if (rc != 0)
+		return rc;
+
 	ima_add_boot_aggregate();	/* boot aggregate must be first entry */
 	ima_init_policy();
 
diff --git a/security/integrity/ima/ima_template.c b/security/integrity/ima/ima_template.c
new file mode 100644
index 000000000000..7e86783ccf51
--- /dev/null
+++ b/security/integrity/ima/ima_template.c
@@ -0,0 +1,112 @@
+/*
+ * Copyright (C) 2013 Politecnico di Torino, Italy
+ *                    TORSEC group -- http://security.polito.it
+ *
+ * Author: Roberto Sassu <roberto.sassu@polito.it>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2 of the
+ * License.
+ *
+ * File: ima_template.c
+ *      Helpers to manage template descriptors.
+ */
+#include "ima.h"
+
+static struct ima_template_desc defined_templates[] = {
+};
+
+static struct ima_template_field supported_fields[] = {
+};
+
+static struct ima_template_field *ima_lookup_template_field(
+							const char *field_id)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(supported_fields); i++)
+		if (strncmp(supported_fields[i].field_id, field_id,
+			    IMA_TEMPLATE_FIELD_ID_MAX_LEN) == 0)
+			return &supported_fields[i];
+	return NULL;
+}
+
+static int ima_template_fmt_size(char *template_fmt)
+{
+	char c;
+	int template_fmt_len = strlen(template_fmt);
+	int i = 0, j = 0;
+
+	while (i < template_fmt_len) {
+		c = template_fmt[i];
+		if (c == '|')
+			j++;
+		i++;
+	}
+
+	return j + 1;
+}
+
+static int template_desc_init_fields(char *template_fmt,
+				     struct ima_template_field ***fields,
+				     int *num_fields)
+{
+	char *c, *template_fmt_ptr = template_fmt;
+	int template_num_fields = ima_template_fmt_size(template_fmt);
+	int i, result = 0;
+
+	if (template_num_fields > IMA_TEMPLATE_NUM_FIELDS_MAX)
+		return -EINVAL;
+
+	*fields = kzalloc(template_num_fields * sizeof(*fields), GFP_KERNEL);
+	if (*fields == NULL) {
+		result = -ENOMEM;
+		goto out;
+	}
+	for (i = 0; (c = strsep(&template_fmt_ptr, "|")) != NULL &&
+	     i < template_num_fields; i++) {
+		struct ima_template_field *f = ima_lookup_template_field(c);
+
+		if (!f) {
+			result = -ENOENT;
+			goto out;
+		}
+		(*fields)[i] = f;
+	}
+	*num_fields = i;
+	return 0;
+out:
+	kfree(*fields);
+	*fields = NULL;
+	return result;
+}
+
+static int init_defined_templates(void)
+{
+	int i = 0;
+	int result = 0;
+
+	/* Init defined templates. */
+	for (i = 0; i < ARRAY_SIZE(defined_templates); i++) {
+		struct ima_template_desc *template = &defined_templates[i];
+
+		result = template_desc_init_fields(template->fmt,
+						   &(template->fields),
+						   &(template->num_fields));
+		if (result < 0)
+			return result;
+	}
+	return result;
+}
+
+int ima_init_template(void)
+{
+	int result;
+
+	result = init_defined_templates();
+	if (result < 0)
+		return result;
+
+	return 0;
+}
-- 
cgit 


From 3ce1217d6cd5dfa82a9db5c2a999cc1bb01490d9 Mon Sep 17 00:00:00 2001
From: Roberto Sassu <roberto.sassu@polito.it>
Date: Fri, 7 Jun 2013 12:16:30 +0200
Subject: ima: define template fields library and new helpers

This patch defines a library containing two initial template fields,
inode digest (d) and file name (n), the 'ima' template descriptor,
whose format is 'd|n', and two helper functions,
ima_write_template_field_data() and ima_show_template_field_data().

Changelog:
- replace ima_eventname_init() parameter NULL checking with BUG_ON.
  (suggested by Mimi)
- include "new template fields for inode digest (d) and file name (n)"
  definitions to fix a compiler warning.  - Mimi
- unnecessary to prefix static function names with 'ima_'. remove
  prefix to resolve Lindent formatting changes. - Mimi
- abbreviated/removed inline comments - Mimi
- always send the template field length - Mimi

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 security/integrity/ima/Makefile           |   2 +-
 security/integrity/ima/ima.h              |   5 +
 security/integrity/ima/ima_fs.c           |   4 +-
 security/integrity/ima/ima_template.c     |  15 ++-
 security/integrity/ima/ima_template_lib.c | 193 ++++++++++++++++++++++++++++++
 security/integrity/ima/ima_template_lib.h |  31 +++++
 6 files changed, 242 insertions(+), 8 deletions(-)
 create mode 100644 security/integrity/ima/ima_template_lib.c
 create mode 100644 security/integrity/ima/ima_template_lib.h

diff --git a/security/integrity/ima/Makefile b/security/integrity/ima/Makefile
index 7fe4ae37dbea..d79263d2fdbf 100644
--- a/security/integrity/ima/Makefile
+++ b/security/integrity/ima/Makefile
@@ -6,5 +6,5 @@
 obj-$(CONFIG_IMA) += ima.o
 
 ima-y := ima_fs.o ima_queue.o ima_init.o ima_main.o ima_crypto.o ima_api.o \
-	 ima_policy.o ima_template.o
+	 ima_policy.o ima_template.o ima_template_lib.o
 ima-$(CONFIG_IMA_APPRAISE) += ima_appraise.o
diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index c85718f1f623..e1f081d65dbf 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -39,6 +39,9 @@ enum tpm_pcrs { TPM_PCR0 = 0, TPM_PCR8 = 8 };
 #define IMA_TEMPLATE_FIELD_ID_MAX_LEN	16
 #define IMA_TEMPLATE_NUM_FIELDS_MAX	15
 
+#define IMA_TEMPLATE_IMA_NAME "ima"
+#define IMA_TEMPLATE_IMA_FMT "d|n"
+
 /* set during initialization */
 extern int ima_initialized;
 extern int ima_used_chip;
@@ -105,6 +108,8 @@ int __init ima_calc_boot_aggregate(struct ima_digest_data *hash);
 void ima_add_violation(struct file *file, const unsigned char *filename,
 		       const char *op, const char *cause);
 int ima_init_crypto(void);
+void ima_putc(struct seq_file *m, void *data, int datalen);
+void ima_print_digest(struct seq_file *m, u8 *digest, int size);
 
 int ima_init_template(void);
 
diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
index c35cfb5b3c5e..414862e1904b 100644
--- a/security/integrity/ima/ima_fs.c
+++ b/security/integrity/ima/ima_fs.c
@@ -99,7 +99,7 @@ static void ima_measurements_stop(struct seq_file *m, void *v)
 {
 }
 
-static void ima_putc(struct seq_file *m, void *data, int datalen)
+void ima_putc(struct seq_file *m, void *data, int datalen)
 {
 	while (datalen--)
 		seq_putc(m, *(char *)data++);
@@ -167,7 +167,7 @@ static const struct file_operations ima_measurements_ops = {
 	.release = seq_release,
 };
 
-static void ima_print_digest(struct seq_file *m, u8 *digest, int size)
+void ima_print_digest(struct seq_file *m, u8 *digest, int size)
 {
 	int i;
 
diff --git a/security/integrity/ima/ima_template.c b/security/integrity/ima/ima_template.c
index 7e86783ccf51..810042264396 100644
--- a/security/integrity/ima/ima_template.c
+++ b/security/integrity/ima/ima_template.c
@@ -13,15 +13,20 @@
  *      Helpers to manage template descriptors.
  */
 #include "ima.h"
+#include "ima_template_lib.h"
 
 static struct ima_template_desc defined_templates[] = {
+	{.name = IMA_TEMPLATE_IMA_NAME,.fmt = IMA_TEMPLATE_IMA_FMT},
 };
 
 static struct ima_template_field supported_fields[] = {
+	{.field_id = "d",.field_init = ima_eventdigest_init,
+	 .field_show = ima_show_template_digest},
+	{.field_id = "n",.field_init = ima_eventname_init,
+	 .field_show = ima_show_template_string},
 };
 
-static struct ima_template_field *ima_lookup_template_field(
-							const char *field_id)
+static struct ima_template_field *lookup_template_field(const char *field_id)
 {
 	int i;
 
@@ -32,7 +37,7 @@ static struct ima_template_field *ima_lookup_template_field(
 	return NULL;
 }
 
-static int ima_template_fmt_size(char *template_fmt)
+static int template_fmt_size(char *template_fmt)
 {
 	char c;
 	int template_fmt_len = strlen(template_fmt);
@@ -53,7 +58,7 @@ static int template_desc_init_fields(char *template_fmt,
 				     int *num_fields)
 {
 	char *c, *template_fmt_ptr = template_fmt;
-	int template_num_fields = ima_template_fmt_size(template_fmt);
+	int template_num_fields = template_fmt_size(template_fmt);
 	int i, result = 0;
 
 	if (template_num_fields > IMA_TEMPLATE_NUM_FIELDS_MAX)
@@ -66,7 +71,7 @@ static int template_desc_init_fields(char *template_fmt,
 	}
 	for (i = 0; (c = strsep(&template_fmt_ptr, "|")) != NULL &&
 	     i < template_num_fields; i++) {
-		struct ima_template_field *f = ima_lookup_template_field(c);
+		struct ima_template_field *f = lookup_template_field(c);
 
 		if (!f) {
 			result = -ENOENT;
diff --git a/security/integrity/ima/ima_template_lib.c b/security/integrity/ima/ima_template_lib.c
new file mode 100644
index 000000000000..e13fc7c04ebc
--- /dev/null
+++ b/security/integrity/ima/ima_template_lib.c
@@ -0,0 +1,193 @@
+/*
+ * Copyright (C) 2013 Politecnico di Torino, Italy
+ *                    TORSEC group -- http://security.polito.it
+ *
+ * Author: Roberto Sassu <roberto.sassu@polito.it>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2 of the
+ * License.
+ *
+ * File: ima_template_lib.c
+ *      Library of supported template fields.
+ */
+#include "ima_template_lib.h"
+
+enum data_formats { DATA_FMT_DIGEST = 0, DATA_FMT_EVENT_NAME, DATA_FMT_STRING };
+static int ima_write_template_field_data(const void *data, const u32 datalen,
+					 enum data_formats datafmt,
+					 struct ima_field_data *field_data)
+{
+	u8 *buf, *buf_ptr;
+	u32 buflen;
+
+	switch (datafmt) {
+	case DATA_FMT_EVENT_NAME:
+		buflen = IMA_EVENT_NAME_LEN_MAX + 1;
+		break;
+	case DATA_FMT_STRING:
+		buflen = datalen + 1;
+		break;
+	default:
+		buflen = datalen;
+	}
+
+	buf = kzalloc(buflen, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	memcpy(buf, data, datalen);
+
+	/*
+	 * Replace all space characters with underscore for event names and
+	 * strings. This avoid that, during the parsing of a measurements list,
+	 * filenames with spaces or that end with the suffix ' (deleted)' are
+	 * split into multiple template fields (the space is the delimitator
+	 * character for measurements lists in ASCII format).
+	 */
+	if (datafmt == DATA_FMT_EVENT_NAME || datafmt == DATA_FMT_STRING) {
+		for (buf_ptr = buf; buf_ptr - buf < datalen; buf_ptr++)
+			if (*buf_ptr == ' ')
+				*buf_ptr = '_';
+	}
+
+	field_data->data = buf;
+	field_data->len = buflen;
+	return 0;
+}
+
+static void ima_show_template_data_ascii(struct seq_file *m,
+					 enum ima_show_type show,
+					 enum data_formats datafmt,
+					 struct ima_field_data *field_data)
+{
+	switch (datafmt) {
+	case DATA_FMT_DIGEST:
+		ima_print_digest(m, field_data->data, field_data->len);
+		break;
+	case DATA_FMT_STRING:
+		seq_printf(m, "%s", field_data->data);
+		break;
+	default:
+		break;
+	}
+}
+
+static void ima_show_template_data_binary(struct seq_file *m,
+					  enum ima_show_type show,
+					  enum data_formats datafmt,
+					  struct ima_field_data *field_data)
+{
+	ima_putc(m, &field_data->len, sizeof(u32));
+	if (!field_data->len)
+		return;
+	ima_putc(m, field_data->data, field_data->len);
+}
+
+static void ima_show_template_field_data(struct seq_file *m,
+					 enum ima_show_type show,
+					 enum data_formats datafmt,
+					 struct ima_field_data *field_data)
+{
+	switch (show) {
+	case IMA_SHOW_ASCII:
+		ima_show_template_data_ascii(m, show, datafmt, field_data);
+		break;
+	case IMA_SHOW_BINARY:
+		ima_show_template_data_binary(m, show, datafmt, field_data);
+		break;
+	default:
+		break;
+	}
+}
+
+void ima_show_template_digest(struct seq_file *m, enum ima_show_type show,
+			      struct ima_field_data *field_data)
+{
+	ima_show_template_field_data(m, show, DATA_FMT_DIGEST, field_data);
+}
+
+void ima_show_template_string(struct seq_file *m, enum ima_show_type show,
+			      struct ima_field_data *field_data)
+{
+	ima_show_template_field_data(m, show, DATA_FMT_STRING, field_data);
+}
+
+/*
+ * This function writes the digest of an event.
+ */
+int ima_eventdigest_init(struct integrity_iint_cache *iint, struct file *file,
+			 const unsigned char *filename,
+			 struct ima_field_data *field_data)
+{
+	struct {
+		struct ima_digest_data hdr;
+		char digest[IMA_MAX_DIGEST_SIZE];
+	} hash;
+	u8 *cur_digest = hash.hdr.digest;
+	u32 cur_digestsize = IMA_DIGEST_SIZE;
+	struct inode *inode;
+	int result;
+
+	memset(&hash, 0, sizeof(hash));
+
+	if (!iint)		/* recording a violation. */
+		goto out;
+
+	if (iint->ima_hash->algo == ima_hash_algo) {
+		cur_digest = iint->ima_hash->digest;
+		cur_digestsize = iint->ima_hash->length;
+		goto out;
+	}
+
+	if (!file)		/* missing info to re-calculate the digest */
+		return -EINVAL;
+
+	inode = file_inode(file);
+	hash.hdr.algo = ima_hash_algo;
+	result = ima_calc_file_hash(file, &hash.hdr);
+	if (result) {
+		integrity_audit_msg(AUDIT_INTEGRITY_DATA, inode,
+				    filename, "collect_data",
+				    "failed", result, 0);
+		return result;
+	}
+out:
+	return ima_write_template_field_data(cur_digest, cur_digestsize,
+					     DATA_FMT_DIGEST, field_data);
+}
+
+/*
+ * This function writes the name of an event.
+ */
+int ima_eventname_init(struct integrity_iint_cache *iint, struct file *file,
+		       const unsigned char *filename,
+		       struct ima_field_data *field_data)
+{
+	const char *cur_filename = NULL;
+	u32 cur_filename_len = 0;
+
+	BUG_ON(filename == NULL && file == NULL);
+
+	if (filename) {
+		cur_filename = filename;
+		cur_filename_len = strlen(filename);
+
+		if (cur_filename_len <= IMA_EVENT_NAME_LEN_MAX)
+			goto out;
+	}
+
+	if (file) {
+		cur_filename = file->f_dentry->d_name.name;
+		cur_filename_len = strlen(cur_filename);
+	} else
+		/*
+		 * Truncate filename if the latter is too long and
+		 * the file descriptor is not available.
+		 */
+		cur_filename_len = IMA_EVENT_NAME_LEN_MAX;
+out:
+	return ima_write_template_field_data(cur_filename, cur_filename_len,
+					     DATA_FMT_EVENT_NAME, field_data);
+}
diff --git a/security/integrity/ima/ima_template_lib.h b/security/integrity/ima/ima_template_lib.h
new file mode 100644
index 000000000000..2cecc83a928d
--- /dev/null
+++ b/security/integrity/ima/ima_template_lib.h
@@ -0,0 +1,31 @@
+/*
+ * Copyright (C) 2013 Politecnico di Torino, Italy
+ *                    TORSEC group -- http://security.polito.it
+ *
+ * Author: Roberto Sassu <roberto.sassu@polito.it>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation, version 2 of the
+ * License.
+ *
+ * File: ima_template_lib.h
+ *      Header for the library of supported template fields.
+ */
+#ifndef __LINUX_IMA_TEMPLATE_LIB_H
+#define __LINUX_IMA_TEMPLATE_LIB_H
+
+#include <linux/seq_file.h>
+#include "ima.h"
+
+void ima_show_template_digest(struct seq_file *m, enum ima_show_type show,
+			      struct ima_field_data *field_data);
+void ima_show_template_string(struct seq_file *m, enum ima_show_type show,
+			      struct ima_field_data *field_data);
+int ima_eventdigest_init(struct integrity_iint_cache *iint, struct file *file,
+			 const unsigned char *filename,
+			 struct ima_field_data *field_data);
+int ima_eventname_init(struct integrity_iint_cache *iint, struct file *file,
+		       const unsigned char *filename,
+		       struct ima_field_data *field_data);
+#endif /* __LINUX_IMA_TEMPLATE_LIB_H */
-- 
cgit 


From 4d7aeee73f5304bf195aa2904f8eb1d7b2e8fe52 Mon Sep 17 00:00:00 2001
From: Roberto Sassu <roberto.sassu@polito.it>
Date: Fri, 7 Jun 2013 12:16:32 +0200
Subject: ima: define new template ima-ng and template fields d-ng and n-ng

This patch adds support for the new template 'ima-ng', whose format
is defined as 'd-ng|n-ng'.  These new field definitions remove the
size limitations of the original 'ima' template.  Further, the 'd-ng'
field prefixes the inode digest with the hash algorithim, when
displaying the new larger digest sizes.

Change log:
- scripts/Lindent fixes  - Mimi
- "always true comparison" - reported by Fengguang Wu, resolved Dmitry
- initialize hash_algo variable to HASH_ALGO__LAST
- always prefix digest with hash algorithm - Mimi

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 security/integrity/ima/ima_template.c     |   7 +-
 security/integrity/ima/ima_template_lib.c | 152 ++++++++++++++++++++++++++----
 security/integrity/ima/ima_template_lib.h |   8 ++
 3 files changed, 150 insertions(+), 17 deletions(-)

diff --git a/security/integrity/ima/ima_template.c b/security/integrity/ima/ima_template.c
index 810042264396..bf38d1af3cfd 100644
--- a/security/integrity/ima/ima_template.c
+++ b/security/integrity/ima/ima_template.c
@@ -16,7 +16,8 @@
 #include "ima_template_lib.h"
 
 static struct ima_template_desc defined_templates[] = {
-	{.name = IMA_TEMPLATE_IMA_NAME,.fmt = IMA_TEMPLATE_IMA_FMT},
+	{.name = IMA_TEMPLATE_IMA_NAME, .fmt = IMA_TEMPLATE_IMA_FMT},
+	{.name = "ima-ng",.fmt = "d-ng|n-ng"},
 };
 
 static struct ima_template_field supported_fields[] = {
@@ -24,6 +25,10 @@ static struct ima_template_field supported_fields[] = {
 	 .field_show = ima_show_template_digest},
 	{.field_id = "n",.field_init = ima_eventname_init,
 	 .field_show = ima_show_template_string},
+	{.field_id = "d-ng",.field_init = ima_eventdigest_ng_init,
+	 .field_show = ima_show_template_digest_ng},
+	{.field_id = "n-ng",.field_init = ima_eventname_ng_init,
+	 .field_show = ima_show_template_string},
 };
 
 static struct ima_template_field *lookup_template_field(const char *field_id)
diff --git a/security/integrity/ima/ima_template_lib.c b/security/integrity/ima/ima_template_lib.c
index e13fc7c04ebc..7d841448f246 100644
--- a/security/integrity/ima/ima_template_lib.c
+++ b/security/integrity/ima/ima_template_lib.c
@@ -12,9 +12,25 @@
  * File: ima_template_lib.c
  *      Library of supported template fields.
  */
+#include <crypto/hash_info.h>
+
 #include "ima_template_lib.h"
 
-enum data_formats { DATA_FMT_DIGEST = 0, DATA_FMT_EVENT_NAME, DATA_FMT_STRING };
+static bool ima_template_hash_algo_allowed(u8 algo)
+{
+	if (algo == HASH_ALGO_SHA1 || algo == HASH_ALGO_MD5)
+		return true;
+
+	return false;
+}
+
+enum data_formats {
+	DATA_FMT_DIGEST = 0,
+	DATA_FMT_DIGEST_WITH_ALGO,
+	DATA_FMT_EVENT_NAME,
+	DATA_FMT_STRING
+};
+
 static int ima_write_template_field_data(const void *data, const u32 datalen,
 					 enum data_formats datafmt,
 					 struct ima_field_data *field_data)
@@ -62,12 +78,22 @@ static void ima_show_template_data_ascii(struct seq_file *m,
 					 enum data_formats datafmt,
 					 struct ima_field_data *field_data)
 {
+	u8 *buf_ptr = field_data->data, buflen = field_data->len;
+
 	switch (datafmt) {
+	case DATA_FMT_DIGEST_WITH_ALGO:
+		buf_ptr = strnchr(field_data->data, buflen, ':');
+		if (buf_ptr != field_data->data)
+			seq_printf(m, "%s", field_data->data);
+
+		/* skip ':' and '\0' */
+		buf_ptr += 2;
+		buflen -= buf_ptr - field_data->data;
 	case DATA_FMT_DIGEST:
-		ima_print_digest(m, field_data->data, field_data->len);
+		ima_print_digest(m, buf_ptr, buflen);
 		break;
 	case DATA_FMT_STRING:
-		seq_printf(m, "%s", field_data->data);
+		seq_printf(m, "%s", buf_ptr);
 		break;
 	default:
 		break;
@@ -108,14 +134,59 @@ void ima_show_template_digest(struct seq_file *m, enum ima_show_type show,
 	ima_show_template_field_data(m, show, DATA_FMT_DIGEST, field_data);
 }
 
+void ima_show_template_digest_ng(struct seq_file *m, enum ima_show_type show,
+				 struct ima_field_data *field_data)
+{
+	ima_show_template_field_data(m, show, DATA_FMT_DIGEST_WITH_ALGO,
+				     field_data);
+}
+
 void ima_show_template_string(struct seq_file *m, enum ima_show_type show,
 			      struct ima_field_data *field_data)
 {
 	ima_show_template_field_data(m, show, DATA_FMT_STRING, field_data);
 }
 
+static int ima_eventdigest_init_common(u8 *digest, u32 digestsize, u8 hash_algo,
+				       struct ima_field_data *field_data,
+				       bool size_limit)
+{
+	/*
+	 * digest formats:
+	 *  - DATA_FMT_DIGEST: digest
+	 *  - DATA_FMT_DIGEST_WITH_ALGO: [<hash algo>] + ':' + '\0' + digest,
+	 *    where <hash algo> is provided if the hash algoritm is not
+	 *    SHA1 or MD5
+	 */
+	u8 buffer[CRYPTO_MAX_ALG_NAME + 2 + IMA_MAX_DIGEST_SIZE] = { 0 };
+	enum data_formats fmt = DATA_FMT_DIGEST;
+	u32 offset = 0;
+
+	if (!size_limit) {
+		fmt = DATA_FMT_DIGEST_WITH_ALGO;
+		if (hash_algo < HASH_ALGO__LAST)
+			offset += snprintf(buffer, CRYPTO_MAX_ALG_NAME + 1,
+					   "%s", hash_algo_name[hash_algo]);
+		buffer[offset] = ':';
+		offset += 2;
+	}
+
+	if (digest)
+		memcpy(buffer + offset, digest, digestsize);
+	else
+		/*
+		 * If digest is NULL, the event being recorded is a violation.
+		 * Make room for the digest by increasing the offset of
+		 * IMA_DIGEST_SIZE.
+		 */
+		offset += IMA_DIGEST_SIZE;
+
+	return ima_write_template_field_data(buffer, offset + digestsize,
+					     fmt, field_data);
+}
+
 /*
- * This function writes the digest of an event.
+ * This function writes the digest of an event (with size limit).
  */
 int ima_eventdigest_init(struct integrity_iint_cache *iint, struct file *file,
 			 const unsigned char *filename,
@@ -125,8 +196,8 @@ int ima_eventdigest_init(struct integrity_iint_cache *iint, struct file *file,
 		struct ima_digest_data hdr;
 		char digest[IMA_MAX_DIGEST_SIZE];
 	} hash;
-	u8 *cur_digest = hash.hdr.digest;
-	u32 cur_digestsize = IMA_DIGEST_SIZE;
+	u8 *cur_digest = NULL;
+	u32 cur_digestsize = 0;
 	struct inode *inode;
 	int result;
 
@@ -135,7 +206,7 @@ int ima_eventdigest_init(struct integrity_iint_cache *iint, struct file *file,
 	if (!iint)		/* recording a violation. */
 		goto out;
 
-	if (iint->ima_hash->algo == ima_hash_algo) {
+	if (ima_template_hash_algo_allowed(iint->ima_hash->algo)) {
 		cur_digest = iint->ima_hash->digest;
 		cur_digestsize = iint->ima_hash->length;
 		goto out;
@@ -145,7 +216,8 @@ int ima_eventdigest_init(struct integrity_iint_cache *iint, struct file *file,
 		return -EINVAL;
 
 	inode = file_inode(file);
-	hash.hdr.algo = ima_hash_algo;
+	hash.hdr.algo = ima_template_hash_algo_allowed(ima_hash_algo) ?
+	    ima_hash_algo : HASH_ALGO_SHA1;
 	result = ima_calc_file_hash(file, &hash.hdr);
 	if (result) {
 		integrity_audit_msg(AUDIT_INTEGRITY_DATA, inode,
@@ -153,20 +225,46 @@ int ima_eventdigest_init(struct integrity_iint_cache *iint, struct file *file,
 				    "failed", result, 0);
 		return result;
 	}
+	cur_digest = hash.hdr.digest;
+	cur_digestsize = hash.hdr.length;
 out:
-	return ima_write_template_field_data(cur_digest, cur_digestsize,
-					     DATA_FMT_DIGEST, field_data);
+	return ima_eventdigest_init_common(cur_digest, cur_digestsize, -1,
+					   field_data, true);
 }
 
 /*
- * This function writes the name of an event.
+ * This function writes the digest of an event (without size limit).
  */
-int ima_eventname_init(struct integrity_iint_cache *iint, struct file *file,
-		       const unsigned char *filename,
-		       struct ima_field_data *field_data)
+int ima_eventdigest_ng_init(struct integrity_iint_cache *iint,
+			    struct file *file, const unsigned char *filename,
+			    struct ima_field_data *field_data)
+{
+	u8 *cur_digest = NULL, hash_algo = HASH_ALGO__LAST;
+	u32 cur_digestsize = 0;
+
+	/* If iint is NULL, we are recording a violation. */
+	if (!iint)
+		goto out;
+
+	cur_digest = iint->ima_hash->digest;
+	cur_digestsize = iint->ima_hash->length;
+
+	hash_algo = iint->ima_hash->algo;
+out:
+	return ima_eventdigest_init_common(cur_digest, cur_digestsize,
+					   hash_algo, field_data, false);
+}
+
+static int ima_eventname_init_common(struct integrity_iint_cache *iint,
+				     struct file *file,
+				     const unsigned char *filename,
+				     struct ima_field_data *field_data,
+				     bool size_limit)
 {
 	const char *cur_filename = NULL;
 	u32 cur_filename_len = 0;
+	enum data_formats fmt = size_limit ?
+	    DATA_FMT_EVENT_NAME : DATA_FMT_STRING;
 
 	BUG_ON(filename == NULL && file == NULL);
 
@@ -174,7 +272,7 @@ int ima_eventname_init(struct integrity_iint_cache *iint, struct file *file,
 		cur_filename = filename;
 		cur_filename_len = strlen(filename);
 
-		if (cur_filename_len <= IMA_EVENT_NAME_LEN_MAX)
+		if (!size_limit || cur_filename_len <= IMA_EVENT_NAME_LEN_MAX)
 			goto out;
 	}
 
@@ -189,5 +287,27 @@ int ima_eventname_init(struct integrity_iint_cache *iint, struct file *file,
 		cur_filename_len = IMA_EVENT_NAME_LEN_MAX;
 out:
 	return ima_write_template_field_data(cur_filename, cur_filename_len,
-					     DATA_FMT_EVENT_NAME, field_data);
+					     fmt, field_data);
+}
+
+/*
+ * This function writes the name of an event (with size limit).
+ */
+int ima_eventname_init(struct integrity_iint_cache *iint, struct file *file,
+		       const unsigned char *filename,
+		       struct ima_field_data *field_data)
+{
+	return ima_eventname_init_common(iint, file, filename,
+					 field_data, true);
+}
+
+/*
+ * This function writes the name of an event (without size limit).
+ */
+int ima_eventname_ng_init(struct integrity_iint_cache *iint, struct file *file,
+			  const unsigned char *filename,
+			  struct ima_field_data *field_data)
+{
+	return ima_eventname_init_common(iint, file, filename,
+					 field_data, false);
 }
diff --git a/security/integrity/ima/ima_template_lib.h b/security/integrity/ima/ima_template_lib.h
index 2cecc83a928d..16c5e7810234 100644
--- a/security/integrity/ima/ima_template_lib.h
+++ b/security/integrity/ima/ima_template_lib.h
@@ -20,6 +20,8 @@
 
 void ima_show_template_digest(struct seq_file *m, enum ima_show_type show,
 			      struct ima_field_data *field_data);
+void ima_show_template_digest_ng(struct seq_file *m, enum ima_show_type show,
+				 struct ima_field_data *field_data);
 void ima_show_template_string(struct seq_file *m, enum ima_show_type show,
 			      struct ima_field_data *field_data);
 int ima_eventdigest_init(struct integrity_iint_cache *iint, struct file *file,
@@ -28,4 +30,10 @@ int ima_eventdigest_init(struct integrity_iint_cache *iint, struct file *file,
 int ima_eventname_init(struct integrity_iint_cache *iint, struct file *file,
 		       const unsigned char *filename,
 		       struct ima_field_data *field_data);
+int ima_eventdigest_ng_init(struct integrity_iint_cache *iint,
+			    struct file *file, const unsigned char *filename,
+			    struct ima_field_data *field_data);
+int ima_eventname_ng_init(struct integrity_iint_cache *iint, struct file *file,
+			  const unsigned char *filename,
+			  struct ima_field_data *field_data);
 #endif /* __LINUX_IMA_TEMPLATE_LIB_H */
-- 
cgit 


From a71dc65d30a472409f05d247f4eab91b14acf2f5 Mon Sep 17 00:00:00 2001
From: Roberto Sassu <roberto.sassu@polito.it>
Date: Fri, 7 Jun 2013 12:16:33 +0200
Subject: ima: switch to new template management mechanism

This patch performs the switch to the new template mechanism by modifying
the functions ima_alloc_init_template(), ima_measurements_show() and
ima_ascii_measurements_show(). The old function ima_template_show() was
removed as it is no longer needed. Also, if the template descriptor used
to generate a measurement entry is not 'ima', the whole length of field
data stored for an entry is provided before the data itself through the
binary_runtime_measurement interface.

Changelog:
- unnecessary to use strncmp() (Mimi Zohar)
- create new variable 'field' in ima_alloc_init_template() (Roberto Sassu)
- use GFP_NOFS flag in ima_alloc_init_template() (Roberto Sassu)
- new variable 'num_fields' in ima_store_template() (Roberto Sassu,
  proposed by Mimi Zohar)
- rename ima_calc_buffer_hash/template_hash() to ima_calc_field_array_hash(),
  something more generic (Mimi, requested by Dmitry)
- sparse error fix - Fengguang Wu
- fix lindent warnings
- always include the field length in the template data length
- include the template field length variable size in the template data length
- include both the template field data and field length in the template digest
  calculation. Simplifies verifying the template digest. (Mimi)

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 security/integrity/ima/ima.h          | 19 ++++-----
 security/integrity/ima/ima_api.c      | 75 ++++++++++++-----------------------
 security/integrity/ima/ima_crypto.c   | 34 ++++++++++++----
 security/integrity/ima/ima_fs.c       | 54 ++++++++++++-------------
 security/integrity/ima/ima_template.c | 22 ++++++++++
 5 files changed, 107 insertions(+), 97 deletions(-)

diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index e1f081d65dbf..72d013e190b1 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -72,17 +72,11 @@ struct ima_template_desc {
 	struct ima_template_field **fields;
 };
 
-/* IMA inode template definition */
-struct ima_template_data {
-	u8 digest[IMA_DIGEST_SIZE];	/* sha1/md5 measurement hash */
-	char file_name[IMA_EVENT_NAME_LEN_MAX + 1];	/* name + \0 */
-};
-
 struct ima_template_entry {
 	u8 digest[TPM_DIGEST_SIZE];	/* sha1 or md5 measurement hash */
-	const char *template_name;
-	int template_len;
-	struct ima_template_data template;
+	struct ima_template_desc *template_desc; /* template descriptor */
+	u32 template_data_len;
+	struct ima_field_data template_data[0];	/* template related data */
 };
 
 struct ima_queue_entry {
@@ -102,14 +96,16 @@ int ima_add_template_entry(struct ima_template_entry *entry, int violation,
 			   const char *op, struct inode *inode,
 			   const unsigned char *filename);
 int ima_calc_file_hash(struct file *file, struct ima_digest_data *hash);
-int ima_calc_buffer_hash(const void *data, int len,
-			 struct ima_digest_data *hash);
+int ima_calc_field_array_hash(struct ima_field_data *field_data, int num_fields,
+			      struct ima_digest_data *hash);
 int __init ima_calc_boot_aggregate(struct ima_digest_data *hash);
 void ima_add_violation(struct file *file, const unsigned char *filename,
 		       const char *op, const char *cause);
 int ima_init_crypto(void);
 void ima_putc(struct seq_file *m, void *data, int datalen);
 void ima_print_digest(struct seq_file *m, u8 *digest, int size);
+struct ima_template_desc *ima_template_desc_current(void);
+int ima_init_template(void);
 
 int ima_init_template(void);
 
@@ -146,7 +142,6 @@ int ima_alloc_init_template(struct integrity_iint_cache *iint,
 			    struct ima_template_entry **entry);
 int ima_store_template(struct ima_template_entry *entry, int violation,
 		       struct inode *inode, const unsigned char *filename);
-void ima_template_show(struct seq_file *m, void *e, enum ima_show_type show);
 const char *ima_d_path(struct path *path, char **pathbuf);
 
 /* rbtree tree calls to lookup, insert, delete
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index 29dd43de823a..baa348179527 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -21,8 +21,6 @@
 #include <crypto/hash_info.h>
 #include "ima.h"
 
-static const char *IMA_TEMPLATE_NAME = "ima";
-
 /*
  * ima_alloc_init_template - create and initialize a new template entry
  */
@@ -30,52 +28,32 @@ int ima_alloc_init_template(struct integrity_iint_cache *iint,
 			    struct file *file, const unsigned char *filename,
 			    struct ima_template_entry **entry)
 {
-	struct ima_template_entry *e;
-	int result = 0;
+	struct ima_template_desc *template_desc = ima_template_desc_current();
+	int i, result = 0;
 
-	e = kzalloc(sizeof(**entry), GFP_NOFS);
-	if (!e)
+	*entry = kzalloc(sizeof(**entry) + template_desc->num_fields *
+			 sizeof(struct ima_field_data), GFP_NOFS);
+	if (!*entry)
 		return -ENOMEM;
 
-	memset(&(e)->template, 0, sizeof(e->template));
-	if (!iint)		/* IMA measurement violation entry */
-		goto out;
-
-	if (iint->ima_hash->algo != ima_hash_algo) {
-		struct inode *inode;
-		struct {
-			struct ima_digest_data hdr;
-			char digest[IMA_MAX_DIGEST_SIZE];
-		} hash;
+	for (i = 0; i < template_desc->num_fields; i++) {
+		struct ima_template_field *field = template_desc->fields[i];
+		u32 len;
 
-		if (!file) {
-			result = -EINVAL;
-			goto out_free;
-		}
+		result = field->field_init(iint, file, filename,
+					   &((*entry)->template_data[i]));
+		if (result != 0)
+			goto out;
 
-		inode = file_inode(file);
-		hash.hdr.algo = ima_hash_algo;
-		hash.hdr.length = SHA1_DIGEST_SIZE;
-		result = ima_calc_file_hash(file, &hash.hdr);
-		if (result) {
-			integrity_audit_msg(AUDIT_INTEGRITY_DATA, inode,
-					    filename, "collect_data",
-					    "failed", result, 0);
-			goto out_free;
-		} else
-			memcpy(e->template.digest, hash.hdr.digest,
-			       hash.hdr.length);
-	} else
-		memcpy(e->template.digest, iint->ima_hash->digest,
-		       iint->ima_hash->length);
-out:
-	strcpy(e->template.file_name,
-	       (strlen(filename) > IMA_EVENT_NAME_LEN_MAX && file != NULL) ?
-	       file->f_dentry->d_name.name : filename);
-	*entry = e;
+		len = (*entry)->template_data[i].len;
+		(*entry)->template_data_len += sizeof(len);
+		(*entry)->template_data_len += len;
+	}
+	(*entry)->template_desc = template_desc;
 	return 0;
-out_free:
-	kfree(e);
+out:
+	kfree(*entry);
+	*entry = NULL;
 	return result;
 }
 
@@ -101,24 +79,23 @@ int ima_store_template(struct ima_template_entry *entry,
 {
 	const char *op = "add_template_measure";
 	const char *audit_cause = "hashing_error";
+	char *template_name = entry->template_desc->name;
 	int result;
 	struct {
 		struct ima_digest_data hdr;
 		char digest[TPM_DIGEST_SIZE];
 	} hash;
 
-	memset(entry->digest, 0, sizeof(entry->digest));
-	entry->template_name = IMA_TEMPLATE_NAME;
-	entry->template_len = sizeof(entry->template);
-
 	if (!violation) {
+		int num_fields = entry->template_desc->num_fields;
+
 		/* this function uses default algo */
 		hash.hdr.algo = HASH_ALGO_SHA1;
-		result = ima_calc_buffer_hash(&entry->template,
-					      entry->template_len, &hash.hdr);
+		result = ima_calc_field_array_hash(&entry->template_data[0],
+						   num_fields, &hash.hdr);
 		if (result < 0) {
 			integrity_audit_msg(AUDIT_INTEGRITY_PCR, inode,
-					    entry->template_name, op,
+					    template_name, op,
 					    audit_cause, result, 0);
 			return result;
 		}
diff --git a/security/integrity/ima/ima_crypto.c b/security/integrity/ima/ima_crypto.c
index 22be23f13b3d..676e0292dfec 100644
--- a/security/integrity/ima/ima_crypto.c
+++ b/security/integrity/ima/ima_crypto.c
@@ -137,26 +137,46 @@ int ima_calc_file_hash(struct file *file, struct ima_digest_data *hash)
 }
 
 /*
- * Calculate the hash of a given buffer
+ * Calculate the hash of template data
  */
-static int ima_calc_buffer_hash_tfm(const void *buf, int len,
-				    struct ima_digest_data *hash,
-				    struct crypto_shash *tfm)
+static int ima_calc_field_array_hash_tfm(struct ima_field_data *field_data,
+					 int num_fields,
+					 struct ima_digest_data *hash,
+					 struct crypto_shash *tfm)
 {
 	struct {
 		struct shash_desc shash;
 		char ctx[crypto_shash_descsize(tfm)];
 	} desc;
+	int rc, i;
 
 	desc.shash.tfm = tfm;
 	desc.shash.flags = 0;
 
 	hash->length = crypto_shash_digestsize(tfm);
 
-	return crypto_shash_digest(&desc.shash, buf, len, hash->digest);
+	rc = crypto_shash_init(&desc.shash);
+	if (rc != 0)
+		return rc;
+
+	for (i = 0; i < num_fields; i++) {
+		rc = crypto_shash_update(&desc.shash,
+					 (const u8 *) &field_data[i].len,
+					 sizeof(field_data[i].len));
+		rc = crypto_shash_update(&desc.shash, field_data[i].data,
+					 field_data[i].len);
+		if (rc)
+			break;
+	}
+
+	if (!rc)
+		rc = crypto_shash_final(&desc.shash, hash->digest);
+
+	return rc;
 }
 
-int ima_calc_buffer_hash(const void *buf, int len, struct ima_digest_data *hash)
+int ima_calc_field_array_hash(struct ima_field_data *field_data, int num_fields,
+			      struct ima_digest_data *hash)
 {
 	struct crypto_shash *tfm;
 	int rc;
@@ -165,7 +185,7 @@ int ima_calc_buffer_hash(const void *buf, int len, struct ima_digest_data *hash)
 	if (IS_ERR(tfm))
 		return PTR_ERR(tfm);
 
-	rc = ima_calc_buffer_hash_tfm(buf, len, hash, tfm);
+	rc = ima_calc_field_array_hash_tfm(field_data, num_fields, hash, tfm);
 
 	ima_free_tfm(tfm);
 
diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
index 414862e1904b..d47a7c86a21d 100644
--- a/security/integrity/ima/ima_fs.c
+++ b/security/integrity/ima/ima_fs.c
@@ -110,6 +110,7 @@ void ima_putc(struct seq_file *m, void *data, int datalen)
  *       char[20]=template digest
  *       32bit-le=template name size
  *       char[n]=template name
+ *       [eventdata length]
  *       eventdata[n]=template specific data
  */
 static int ima_measurements_show(struct seq_file *m, void *v)
@@ -119,6 +120,7 @@ static int ima_measurements_show(struct seq_file *m, void *v)
 	struct ima_template_entry *e;
 	int namelen;
 	u32 pcr = CONFIG_IMA_MEASURE_PCR_IDX;
+	int i;
 
 	/* get entry */
 	e = qe->entry;
@@ -136,15 +138,22 @@ static int ima_measurements_show(struct seq_file *m, void *v)
 	ima_putc(m, e->digest, TPM_DIGEST_SIZE);
 
 	/* 3rd: template name size */
-	namelen = strlen(e->template_name);
+	namelen = strlen(e->template_desc->name);
 	ima_putc(m, &namelen, sizeof namelen);
 
 	/* 4th:  template name */
-	ima_putc(m, (void *)e->template_name, namelen);
+	ima_putc(m, e->template_desc->name, namelen);
+
+	/* 5th:  template length (except for 'ima' template) */
+	if (strcmp(e->template_desc->name, IMA_TEMPLATE_IMA_NAME) != 0)
+		ima_putc(m, &e->template_data_len,
+			 sizeof(e->template_data_len));
 
-	/* 5th:  template specific data */
-	ima_template_show(m, (struct ima_template_data *)&e->template,
-			  IMA_SHOW_BINARY);
+	/* 6th:  template specific data */
+	for (i = 0; i < e->template_desc->num_fields; i++) {
+		e->template_desc->fields[i]->field_show(m, IMA_SHOW_BINARY,
+							&e->template_data[i]);
+	}
 	return 0;
 }
 
@@ -175,33 +184,13 @@ void ima_print_digest(struct seq_file *m, u8 *digest, int size)
 		seq_printf(m, "%02x", *(digest + i));
 }
 
-void ima_template_show(struct seq_file *m, void *e, enum ima_show_type show)
-{
-	struct ima_template_data *entry = e;
-	int namelen;
-
-	switch (show) {
-	case IMA_SHOW_ASCII:
-		ima_print_digest(m, entry->digest, IMA_DIGEST_SIZE);
-		seq_printf(m, " %s\n", entry->file_name);
-		break;
-	case IMA_SHOW_BINARY:
-		ima_putc(m, entry->digest, IMA_DIGEST_SIZE);
-
-		namelen = strlen(entry->file_name);
-		ima_putc(m, &namelen, sizeof namelen);
-		ima_putc(m, entry->file_name, namelen);
-	default:
-		break;
-	}
-}
-
 /* print in ascii */
 static int ima_ascii_measurements_show(struct seq_file *m, void *v)
 {
 	/* the list never shrinks, so we don't need a lock here */
 	struct ima_queue_entry *qe = v;
 	struct ima_template_entry *e;
+	int i;
 
 	/* get entry */
 	e = qe->entry;
@@ -215,11 +204,18 @@ static int ima_ascii_measurements_show(struct seq_file *m, void *v)
 	ima_print_digest(m, e->digest, TPM_DIGEST_SIZE);
 
 	/* 3th:  template name */
-	seq_printf(m, " %s ", e->template_name);
+	seq_printf(m, " %s", e->template_desc->name);
 
 	/* 4th:  template specific data */
-	ima_template_show(m, (struct ima_template_data *)&e->template,
-			  IMA_SHOW_ASCII);
+	for (i = 0; i < e->template_desc->num_fields; i++) {
+		seq_puts(m, " ");
+		if (e->template_data[i].len == 0)
+			continue;
+
+		e->template_desc->fields[i]->field_show(m, IMA_SHOW_ASCII,
+							&e->template_data[i]);
+	}
+	seq_puts(m, "\n");
 	return 0;
 }
 
diff --git a/security/integrity/ima/ima_template.c b/security/integrity/ima/ima_template.c
index bf38d1af3cfd..1c4cf194592c 100644
--- a/security/integrity/ima/ima_template.c
+++ b/security/integrity/ima/ima_template.c
@@ -31,6 +31,20 @@ static struct ima_template_field supported_fields[] = {
 	 .field_show = ima_show_template_string},
 };
 
+static struct ima_template_desc *ima_template;
+
+static struct ima_template_desc *lookup_template_desc(const char *name)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(defined_templates); i++) {
+		if (strcmp(defined_templates[i].name, name) == 0)
+			return defined_templates + i;
+	}
+
+	return NULL;
+}
+
 static struct ima_template_field *lookup_template_field(const char *field_id)
 {
 	int i;
@@ -110,6 +124,14 @@ static int init_defined_templates(void)
 	return result;
 }
 
+struct ima_template_desc *ima_template_desc_current(void)
+{
+	if (!ima_template)
+		ima_template = lookup_template_desc(IMA_TEMPLATE_IMA_NAME);
+
+	return ima_template;
+}
+
 int ima_init_template(void)
 {
 	int result;
-- 
cgit 


From e37f14a5fb85522f3bbf88ece6134c4e610ed598 Mon Sep 17 00:00:00 2001
From: Kirill Tkhai <tkhai@yandex.ru>
Date: Fri, 18 Oct 2013 15:56:44 +0400
Subject: ACPI / video: Ignore BIOS initial backlight value for HP 250 G1

On HP 250 G1 laptops, BIOS reports minimum backlight on boot and
causes backlight to dim completely. This ignores the initial backlight
values and set to max brightness.

References: https://bugzilla.kernel.org/show_bug.cgi?id=63111
Signed-off-by: Kirill Tkhai <tkhai@yandex.ru>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/video.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index d020df5a732a..38c3a28d6392 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -504,6 +504,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion m4 Notebook PC"),
 		},
 	},
+	{
+	 .callback = video_ignore_initial_backlight,
+	 .ident = "HP 250 G1",
+	 .matches = {
+		DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "HP 250 G1 Notebook PC"),
+		},
+	},
 	{}
 };
 
-- 
cgit 


From 1bdb71af7f1388fd4b305134035008a81f2032b8 Mon Sep 17 00:00:00 2001
From: Levente Kurusa <levex@linux.com>
Date: Tue, 22 Oct 2013 16:53:35 +0200
Subject: ACPI: Add Toshiba NB100 to Vista _OSI blacklist

This patch adds Toshiba NB100 to the Vista _OSI blacklist.

The _OSI(Windows 2006) method is bugged on the netbook resulting in
messed up PCI IRQ Routing information. This was observed on a netbook
whose SATA controller mode was set to Compatibility mode.

The controller would then issue IRQs to IRQ#16 instead of
IRQ#20, where it should have been.

No side-effects were found during testing, everything is
working as it did before.

References: http://marc.info/?t=137862230200001&r=1&w=2
References: http://www.spinics.net/lists/linux-ide/msg46173.html
Signed-off-by: Levente Kurusa <levex@linux.com>
Reviewed-by: Robert Hancock <hancockrwd@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/blacklist.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index aa4d874a96fd..b7fd1aeb6c42 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -273,6 +273,14 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 		     DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"),
 		},
 	},
+	{
+	.callback = dmi_disable_osi_vista,
+	.ident = "Toshiba NB100",
+	.matches = {
+		     DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+		     DMI_MATCH(DMI_PRODUCT_NAME, "NB100"),
+		},
+	},
 
 	/*
 	 * The following machines have broken backlight support when reporting
-- 
cgit 


From b042453f3892465e8372b95a0f42c0890df03445 Mon Sep 17 00:00:00 2001
From: Levente Kurusa <levex@linux.com>
Date: Tue, 22 Oct 2013 16:53:35 +0200
Subject: ACPI: Add Toshiba NB100 to Vista _OSI blacklist

This patch adds Toshiba NB100 to the Vista _OSI blacklist.

The _OSI(Windows 2006) method is bugged on the netbook resulting in
messed up PCI IRQ Routing information. This was observed on a netbook
whose SATA controller mode was set to Compatibility mode.

The controller would then issue IRQs to IRQ#16 instead of
IRQ#20, where it should have been.

No side-effects were found during testing, everything is
working as it did before.

References: http://marc.info/?t=137862230200001&r=1&w=2
References: http://www.spinics.net/lists/linux-ide/msg46173.html
Signed-off-by: Levente Kurusa <levex@linux.com>
Reviewed-by: Robert Hancock <hancockrwd@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/blacklist.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index aa4d874a96fd..b7fd1aeb6c42 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -273,6 +273,14 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 		     DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P305D"),
 		},
 	},
+	{
+	.callback = dmi_disable_osi_vista,
+	.ident = "Toshiba NB100",
+	.matches = {
+		     DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
+		     DMI_MATCH(DMI_PRODUCT_NAME, "NB100"),
+		},
+	},
 
 	/*
 	 * The following machines have broken backlight support when reporting
-- 
cgit 


From c6ce2b6bffe5740d572fdc5b5e690d5261abee51 Mon Sep 17 00:00:00 2001
From: Christian Ruppert <christian.ruppert@abilis.com>
Date: Tue, 8 Oct 2013 14:25:22 +0200
Subject: gpio: add TB10x GPIO driver

The GPIO driver for the Abilis Systems TB10x series of SOCs based on ARC700
CPUs. It supports GPIO control and GPIO interrupt generation. This driver
works in conjunction with the TB10x pinctrl driver.

Signed-off-by: Sascha Leuenberger <sascha.leuenberger@abilis.com>
Signed-off-by: Christian Ruppert <christian.ruppert@abilis.com>
Acked-by: Kumar Gala <galak@codeaurora.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 .../devicetree/bindings/gpio/abilis,tb10x-gpio.txt |  36 +++
 drivers/gpio/Kconfig                               |   4 +
 drivers/gpio/Makefile                              |   1 +
 drivers/gpio/gpio-tb10x.c                          | 341 +++++++++++++++++++++
 4 files changed, 382 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/gpio/abilis,tb10x-gpio.txt
 create mode 100644 drivers/gpio/gpio-tb10x.c

diff --git a/Documentation/devicetree/bindings/gpio/abilis,tb10x-gpio.txt b/Documentation/devicetree/bindings/gpio/abilis,tb10x-gpio.txt
new file mode 100644
index 000000000000..00611aceed3e
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/abilis,tb10x-gpio.txt
@@ -0,0 +1,36 @@
+* Abilis TB10x GPIO controller
+
+Required Properties:
+- compatible: Should be "abilis,tb10x-gpio"
+- reg: Address and length of the register set for the device
+- gpio-controller: Marks the device node as a gpio controller.
+- #gpio-cells: Should be <2>. The first cell is the pin number and the
+  second cell is used to specify optional parameters:
+   - bit 0 specifies polarity (0 for normal, 1 for inverted).
+- abilis,ngpio: the number of GPIO pins this driver controls.
+
+Optional Properties:
+- interrupt-controller: Marks the device node as an interrupt controller.
+- #interrupt-cells: Should be <1>. Interrupts are triggered on both edges.
+- interrupts: Defines the interrupt line connecting this GPIO controller to
+  its parent interrupt controller.
+- interrupt-parent: Defines the parent interrupt controller.
+
+GPIO ranges are specified as described in
+Documentation/devicetree/bindings/gpio/gpio.txt
+
+Example:
+
+	gpioa: gpio@FF140000 {
+		compatible = "abilis,tb10x-gpio";
+		interrupt-controller;
+		#interrupt-cells = <1>;
+		interrupt-parent = <&tb10x_ictl>;
+		interrupts = <27 2>;
+		reg = <0xFF140000 0x1000>;
+		gpio-controller;
+		#gpio-cells = <2>;
+		abilis,ngpio = <3>;
+		gpio-ranges = <&iomux 0 0 0>;
+		gpio-ranges-group-names = "gpioa_pins";
+	};
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index b6ed304863eb..661ca82814e5 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -360,6 +360,10 @@ config GPIO_GRGPIO
 	  Select this to support Aeroflex Gaisler GRGPIO cores from the GRLIB
 	  VHDL IP core library.
 
+config GPIO_TB10X
+	bool
+	select OF_GPIO
+
 comment "I2C GPIO expanders:"
 
 config GPIO_ARIZONA
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 98e23ebba2cf..2931c996e71f 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -71,6 +71,7 @@ obj-$(CONFIG_GPIO_STA2X11)	+= gpio-sta2x11.o
 obj-$(CONFIG_GPIO_STMPE)	+= gpio-stmpe.o
 obj-$(CONFIG_GPIO_STP_XWAY)	+= gpio-stp-xway.o
 obj-$(CONFIG_GPIO_SX150X)	+= gpio-sx150x.o
+obj-$(CONFIG_GPIO_TB10X)	+= gpio-tb10x.o
 obj-$(CONFIG_GPIO_TC3589X)	+= gpio-tc3589x.o
 obj-$(CONFIG_ARCH_TEGRA)	+= gpio-tegra.o
 obj-$(CONFIG_GPIO_TIMBERDALE)	+= gpio-timberdale.o
diff --git a/drivers/gpio/gpio-tb10x.c b/drivers/gpio/gpio-tb10x.c
new file mode 100644
index 000000000000..833d0f40d40e
--- /dev/null
+++ b/drivers/gpio/gpio-tb10x.c
@@ -0,0 +1,341 @@
+/* Abilis Systems MODULE DESCRIPTION
+ *
+ * Copyright (C) Abilis Systems 2013
+ *
+ * Authors: Sascha Leuenberger <sascha.leuenberger@abilis.com>
+ *          Christian Ruppert <christian.ruppert@abilis.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/slab.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/of_gpio.h>
+#include <linux/spinlock.h>
+#include <linux/bitops.h>
+#include <linux/pinctrl/consumer.h>
+
+#define TB10X_GPIO_DIR_IN	(0x00000000)
+#define TB10X_GPIO_DIR_OUT	(0x00000001)
+#define OFFSET_TO_REG_DDR	(0x00)
+#define OFFSET_TO_REG_DATA	(0x04)
+#define OFFSET_TO_REG_INT_EN	(0x08)
+#define OFFSET_TO_REG_CHANGE	(0x0C)
+#define OFFSET_TO_REG_WRMASK	(0x10)
+#define OFFSET_TO_REG_INT_TYPE	(0x14)
+
+
+/**
+ * @spinlock: used for atomic read/modify/write of registers
+ * @base: register base address
+ * @domain: IRQ domain of GPIO generated interrupts managed by this controller
+ * @irq: Interrupt line of parent interrupt controller
+ * @gc: gpio_chip structure associated to this GPIO controller
+ */
+struct tb10x_gpio {
+	spinlock_t spinlock;
+	void __iomem *base;
+	struct irq_domain *domain;
+	int irq;
+	struct gpio_chip gc;
+};
+
+static inline u32 tb10x_reg_read(struct tb10x_gpio *gpio, unsigned int offs)
+{
+	return ioread32(gpio->base + offs);
+}
+
+static inline void tb10x_reg_write(struct tb10x_gpio *gpio, unsigned int offs,
+				u32 val)
+{
+	iowrite32(val, gpio->base + offs);
+}
+
+static inline void tb10x_set_bits(struct tb10x_gpio *gpio, unsigned int offs,
+				u32 mask, u32 val)
+{
+	u32 r;
+	unsigned long flags;
+
+	spin_lock_irqsave(&gpio->spinlock, flags);
+
+	r = tb10x_reg_read(gpio, offs);
+	r = (r & ~mask) | (val & mask);
+
+	tb10x_reg_write(gpio, offs, r);
+
+	spin_unlock_irqrestore(&gpio->spinlock, flags);
+}
+
+static inline struct tb10x_gpio *to_tb10x_gpio(struct gpio_chip *chip)
+{
+	return container_of(chip, struct tb10x_gpio, gc);
+}
+
+static int tb10x_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
+{
+	struct tb10x_gpio *tb10x_gpio = to_tb10x_gpio(chip);
+	int mask = BIT(offset);
+	int val = TB10X_GPIO_DIR_IN << offset;
+
+	tb10x_set_bits(tb10x_gpio, OFFSET_TO_REG_DDR, mask, val);
+
+	return 0;
+}
+
+static int tb10x_gpio_get(struct gpio_chip *chip, unsigned offset)
+{
+	struct tb10x_gpio *tb10x_gpio = to_tb10x_gpio(chip);
+	int val;
+
+	val = tb10x_reg_read(tb10x_gpio, OFFSET_TO_REG_DATA);
+
+	if (val & BIT(offset))
+		return 1;
+	else
+		return 0;
+}
+
+static void tb10x_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
+{
+	struct tb10x_gpio *tb10x_gpio = to_tb10x_gpio(chip);
+	int mask = BIT(offset);
+	int val = value << offset;
+
+	tb10x_set_bits(tb10x_gpio, OFFSET_TO_REG_DATA, mask, val);
+}
+
+static int tb10x_gpio_direction_out(struct gpio_chip *chip,
+					unsigned offset, int value)
+{
+	struct tb10x_gpio *tb10x_gpio = to_tb10x_gpio(chip);
+	int mask = BIT(offset);
+	int val = TB10X_GPIO_DIR_OUT << offset;
+
+	tb10x_set_bits(tb10x_gpio, OFFSET_TO_REG_DDR, mask, val);
+
+	return 0;
+}
+
+static int tb10x_gpio_request(struct gpio_chip *chip, unsigned offset)
+{
+	return pinctrl_request_gpio(chip->base + offset);
+}
+
+static void tb10x_gpio_free(struct gpio_chip *chip, unsigned offset)
+{
+	pinctrl_free_gpio(chip->base + offset);
+}
+
+static int tb10x_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+	struct tb10x_gpio *tb10x_gpio = to_tb10x_gpio(chip);
+
+	return irq_create_mapping(tb10x_gpio->domain, offset);
+}
+
+static int tb10x_gpio_irq_set_type(struct irq_data *data, unsigned int type)
+{
+	if ((type & IRQF_TRIGGER_MASK) != IRQ_TYPE_EDGE_BOTH) {
+		pr_err("Only (both) edge triggered interrupts supported.\n");
+		return -EINVAL;
+	}
+
+	irqd_set_trigger_type(data, type);
+
+	return IRQ_SET_MASK_OK;
+}
+
+static irqreturn_t tb10x_gpio_irq_cascade(int irq, void *data)
+{
+	struct tb10x_gpio *tb10x_gpio = data;
+	u32 r = tb10x_reg_read(tb10x_gpio, OFFSET_TO_REG_CHANGE);
+	u32 m = tb10x_reg_read(tb10x_gpio, OFFSET_TO_REG_INT_EN);
+	const unsigned long bits = r & m;
+	int i;
+
+	for_each_set_bit(i, &bits, 32)
+		generic_handle_irq(irq_find_mapping(tb10x_gpio->domain, i));
+
+	return IRQ_HANDLED;
+}
+
+static int tb10x_gpio_probe(struct platform_device *pdev)
+{
+	struct tb10x_gpio *tb10x_gpio;
+	struct resource *mem;
+	struct device_node *dn = pdev->dev.of_node;
+	int ret = -EBUSY;
+	u32 ngpio;
+
+	if (!dn)
+		return -EINVAL;
+
+	if (of_property_read_u32(dn, "abilis,ngpio", &ngpio))
+		return -EINVAL;
+
+	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!mem) {
+		dev_err(&pdev->dev, "No memory resource defined.\n");
+		return -EINVAL;
+	}
+
+	tb10x_gpio = devm_kzalloc(&pdev->dev, sizeof(*tb10x_gpio), GFP_KERNEL);
+	if (tb10x_gpio == NULL)
+		return -ENOMEM;
+
+	spin_lock_init(&tb10x_gpio->spinlock);
+
+	tb10x_gpio->base = devm_ioremap_resource(&pdev->dev, mem);
+	if (!tb10x_gpio->base) {
+		dev_err(&pdev->dev, "Could not remap reg space.\n");
+		goto fail_ioremap;
+	}
+
+	tb10x_gpio->gc.label		= of_node_full_name(dn);
+	tb10x_gpio->gc.dev		= &pdev->dev;
+	tb10x_gpio->gc.owner		= THIS_MODULE;
+	tb10x_gpio->gc.direction_input	= tb10x_gpio_direction_in;
+	tb10x_gpio->gc.get		= tb10x_gpio_get;
+	tb10x_gpio->gc.direction_output	= tb10x_gpio_direction_out;
+	tb10x_gpio->gc.set		= tb10x_gpio_set;
+	tb10x_gpio->gc.request		= tb10x_gpio_request;
+	tb10x_gpio->gc.free		= tb10x_gpio_free;
+	tb10x_gpio->gc.base		= -1;
+	tb10x_gpio->gc.ngpio		= ngpio;
+	tb10x_gpio->gc.can_sleep	= 0;
+
+
+	ret = gpiochip_add(&tb10x_gpio->gc);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Could not add gpiochip.\n");
+		goto fail_gpiochip_registration;
+	}
+
+	platform_set_drvdata(pdev, tb10x_gpio);
+
+	if (of_find_property(dn, "interrupt-controller", NULL)) {
+		struct irq_chip_generic *gc;
+
+		ret = platform_get_irq(pdev, 0);
+		if (ret < 0) {
+			dev_err(&pdev->dev, "No interrupt specified.\n");
+			goto fail_get_irq;
+		}
+
+		tb10x_gpio->gc.to_irq	= tb10x_gpio_to_irq;
+		tb10x_gpio->irq		= ret;
+
+		ret = devm_request_irq(&pdev->dev, ret, tb10x_gpio_irq_cascade,
+				IRQF_TRIGGER_NONE | IRQF_SHARED,
+				dev_name(&pdev->dev), tb10x_gpio);
+		if (ret != 0)
+			goto fail_request_irq;
+
+		tb10x_gpio->domain = irq_domain_add_linear(dn,
+						tb10x_gpio->gc.ngpio,
+						&irq_generic_chip_ops, NULL);
+		if (!tb10x_gpio->domain) {
+			ret = -ENOMEM;
+			goto fail_irq_domain;
+		}
+
+		ret = irq_alloc_domain_generic_chips(tb10x_gpio->domain,
+				tb10x_gpio->gc.ngpio, 1, tb10x_gpio->gc.label,
+				handle_edge_irq, IRQ_NOREQUEST, IRQ_NOPROBE,
+				IRQ_GC_INIT_MASK_CACHE);
+		if (ret)
+			goto fail_irq_domain;
+
+		gc = tb10x_gpio->domain->gc->gc[0];
+		gc->reg_base                         = tb10x_gpio->base;
+		gc->chip_types[0].type               = IRQ_TYPE_EDGE_BOTH;
+		gc->chip_types[0].chip.irq_ack       = irq_gc_ack_set_bit;
+		gc->chip_types[0].chip.irq_mask      = irq_gc_mask_clr_bit;
+		gc->chip_types[0].chip.irq_unmask    = irq_gc_mask_set_bit;
+		gc->chip_types[0].chip.irq_set_type  = tb10x_gpio_irq_set_type;
+		gc->chip_types[0].regs.ack           = OFFSET_TO_REG_CHANGE;
+		gc->chip_types[0].regs.mask          = OFFSET_TO_REG_INT_EN;
+	}
+
+	return 0;
+
+fail_irq_domain:
+fail_request_irq:
+fail_get_irq:
+	gpiochip_remove(&tb10x_gpio->gc);
+fail_gpiochip_registration:
+fail_ioremap:
+	return ret;
+}
+
+static int __exit tb10x_gpio_remove(struct platform_device *pdev)
+{
+	struct tb10x_gpio *tb10x_gpio = platform_get_drvdata(pdev);
+	int ret;
+
+	if (tb10x_gpio->gc.to_irq) {
+		irq_remove_generic_chip(tb10x_gpio->domain->gc->gc[0],
+					BIT(tb10x_gpio->gc.ngpio) - 1, 0, 0);
+		kfree(tb10x_gpio->domain->gc);
+		irq_domain_remove(tb10x_gpio->domain);
+		free_irq(tb10x_gpio->irq, tb10x_gpio);
+	}
+	ret = gpiochip_remove(&tb10x_gpio->gc);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static const struct of_device_id tb10x_gpio_dt_ids[] = {
+	{ .compatible = "abilis,tb10x-gpio" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, tb10x_gpio_dt_ids);
+
+static struct platform_driver tb10x_gpio_driver = {
+	.probe		= tb10x_gpio_probe,
+	.remove		= tb10x_gpio_remove,
+	.driver = {
+		.name	= "tb10x-gpio",
+		.of_match_table = of_match_ptr(tb10x_gpio_dt_ids),
+		.owner	= THIS_MODULE,
+	}
+};
+
+static int __init ab_gpio_init(void)
+{
+	return platform_driver_register(&tb10x_gpio_driver);
+}
+
+static void __exit ab_gpio_exit(void)
+{
+	platform_driver_unregister(&tb10x_gpio_driver);
+}
+
+module_init(ab_gpio_init);
+module_exit(ab_gpio_exit);
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("tb10x gpio.");
+MODULE_VERSION("0.0.1");
-- 
cgit 


From 016c815084d5b89f7c1a24b1a3a0b796512a91bc Mon Sep 17 00:00:00 2001
From: Dirk Brandewie <dirk.j.brandewie@intel.com>
Date: Mon, 21 Oct 2013 09:20:34 -0700
Subject: intel_pstate: Refactor driver to support CPUs with different MSR
 layouts

Non-core processors have a different MSR layout to commumicate P state
information. Refactor the driver to use CPU dependent accessors to
P state information.

Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/intel_pstate.c | 144 ++++++++++++++++++++++++++++-------------
 1 file changed, 98 insertions(+), 46 deletions(-)

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index d57648989c0b..6b37c9ff1d64 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -78,7 +78,6 @@ struct cpudata {
 
 	struct timer_list timer;
 
-	struct pstate_adjust_policy *pstate_policy;
 	struct pstate_data pstate;
 	struct _pid pid;
 
@@ -100,15 +99,21 @@ struct pstate_adjust_policy {
 	int i_gain_pct;
 };
 
-static struct pstate_adjust_policy default_policy = {
-	.sample_rate_ms = 10,
-	.deadband = 0,
-	.setpoint = 97,
-	.p_gain_pct = 20,
-	.d_gain_pct = 0,
-	.i_gain_pct = 0,
+struct pstate_funcs {
+	int (*get_max)(void);
+	int (*get_min)(void);
+	int (*get_turbo)(void);
+	void (*set)(int pstate);
 };
 
+struct cpu_defaults {
+	struct pstate_adjust_policy pid_policy;
+	struct pstate_funcs funcs;
+};
+
+static struct pstate_adjust_policy pid_params;
+static struct pstate_funcs pstate_funcs;
+
 struct perf_limits {
 	int no_turbo;
 	int max_perf_pct;
@@ -186,14 +191,14 @@ static signed int pid_calc(struct _pid *pid, int busy)
 
 static inline void intel_pstate_busy_pid_reset(struct cpudata *cpu)
 {
-	pid_p_gain_set(&cpu->pid, cpu->pstate_policy->p_gain_pct);
-	pid_d_gain_set(&cpu->pid, cpu->pstate_policy->d_gain_pct);
-	pid_i_gain_set(&cpu->pid, cpu->pstate_policy->i_gain_pct);
+	pid_p_gain_set(&cpu->pid, pid_params.p_gain_pct);
+	pid_d_gain_set(&cpu->pid, pid_params.d_gain_pct);
+	pid_i_gain_set(&cpu->pid, pid_params.i_gain_pct);
 
 	pid_reset(&cpu->pid,
-		cpu->pstate_policy->setpoint,
+		pid_params.setpoint,
 		100,
-		cpu->pstate_policy->deadband,
+		pid_params.deadband,
 		0);
 }
 
@@ -227,12 +232,12 @@ struct pid_param {
 };
 
 static struct pid_param pid_files[] = {
-	{"sample_rate_ms", &default_policy.sample_rate_ms},
-	{"d_gain_pct", &default_policy.d_gain_pct},
-	{"i_gain_pct", &default_policy.i_gain_pct},
-	{"deadband", &default_policy.deadband},
-	{"setpoint", &default_policy.setpoint},
-	{"p_gain_pct", &default_policy.p_gain_pct},
+	{"sample_rate_ms", &pid_params.sample_rate_ms},
+	{"d_gain_pct", &pid_params.d_gain_pct},
+	{"i_gain_pct", &pid_params.i_gain_pct},
+	{"deadband", &pid_params.deadband},
+	{"setpoint", &pid_params.setpoint},
+	{"p_gain_pct", &pid_params.p_gain_pct},
 	{NULL, NULL}
 };
 
@@ -337,33 +342,60 @@ static void intel_pstate_sysfs_expose_params(void)
 }
 
 /************************** sysfs end ************************/
-
-static int intel_pstate_min_pstate(void)
+static int core_get_min_pstate(void)
 {
 	u64 value;
 	rdmsrl(MSR_PLATFORM_INFO, value);
 	return (value >> 40) & 0xFF;
 }
 
-static int intel_pstate_max_pstate(void)
+static int core_get_max_pstate(void)
 {
 	u64 value;
 	rdmsrl(MSR_PLATFORM_INFO, value);
 	return (value >> 8) & 0xFF;
 }
 
-static int intel_pstate_turbo_pstate(void)
+static int core_get_turbo_pstate(void)
 {
 	u64 value;
 	int nont, ret;
 	rdmsrl(MSR_NHM_TURBO_RATIO_LIMIT, value);
-	nont = intel_pstate_max_pstate();
+	nont = core_get_max_pstate();
 	ret = ((value) & 255);
 	if (ret <= nont)
 		ret = nont;
 	return ret;
 }
 
+static void core_set_pstate(int pstate)
+{
+	u64 val;
+
+	val = pstate << 8;
+	if (limits.no_turbo)
+		val |= (u64)1 << 32;
+
+	wrmsrl(MSR_IA32_PERF_CTL, val);
+}
+
+static struct cpu_defaults core_params = {
+	.pid_policy = {
+		.sample_rate_ms = 10,
+		.deadband = 0,
+		.setpoint = 97,
+		.p_gain_pct = 20,
+		.d_gain_pct = 0,
+		.i_gain_pct = 0,
+	},
+	.funcs = {
+		.get_max = core_get_max_pstate,
+		.get_min = core_get_min_pstate,
+		.get_turbo = core_get_turbo_pstate,
+		.set = core_set_pstate,
+	},
+};
+
 static void intel_pstate_get_min_max(struct cpudata *cpu, int *min, int *max)
 {
 	int max_perf = cpu->pstate.turbo_pstate;
@@ -383,7 +415,6 @@ static void intel_pstate_get_min_max(struct cpudata *cpu, int *min, int *max)
 static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate)
 {
 	int max_perf, min_perf;
-	u64 val;
 
 	intel_pstate_get_min_max(cpu, &min_perf, &max_perf);
 
@@ -395,11 +426,8 @@ static void intel_pstate_set_pstate(struct cpudata *cpu, int pstate)
 	trace_cpu_frequency(pstate * 100000, cpu->cpu);
 
 	cpu->pstate.current_pstate = pstate;
-	val = pstate << 8;
-	if (limits.no_turbo)
-		val |= (u64)1 << 32;
 
-	wrmsrl(MSR_IA32_PERF_CTL, val);
+	pstate_funcs.set(pstate);
 }
 
 static inline void intel_pstate_pstate_increase(struct cpudata *cpu, int steps)
@@ -421,9 +449,9 @@ static void intel_pstate_get_cpu_pstates(struct cpudata *cpu)
 {
 	sprintf(cpu->name, "Intel 2nd generation core");
 
-	cpu->pstate.min_pstate = intel_pstate_min_pstate();
-	cpu->pstate.max_pstate = intel_pstate_max_pstate();
-	cpu->pstate.turbo_pstate = intel_pstate_turbo_pstate();
+	cpu->pstate.min_pstate = pstate_funcs.get_min();
+	cpu->pstate.max_pstate = pstate_funcs.get_max();
+	cpu->pstate.turbo_pstate = pstate_funcs.get_turbo();
 
 	/*
 	 * goto max pstate so we don't slow up boot if we are built-in if we are
@@ -464,7 +492,7 @@ static inline void intel_pstate_set_sample_time(struct cpudata *cpu)
 {
 	int sample_time, delay;
 
-	sample_time = cpu->pstate_policy->sample_rate_ms;
+	sample_time = pid_params.sample_rate_ms;
 	delay = msecs_to_jiffies(sample_time);
 	mod_timer_pinned(&cpu->timer, jiffies + delay);
 }
@@ -523,14 +551,14 @@ static void intel_pstate_timer_func(unsigned long __data)
 	{ X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, (unsigned long)&policy }
 
 static const struct x86_cpu_id intel_pstate_cpu_ids[] = {
-	ICPU(0x2a, default_policy),
-	ICPU(0x2d, default_policy),
-	ICPU(0x3a, default_policy),
-	ICPU(0x3c, default_policy),
-	ICPU(0x3e, default_policy),
-	ICPU(0x3f, default_policy),
-	ICPU(0x45, default_policy),
-	ICPU(0x46, default_policy),
+	ICPU(0x2a, core_params),
+	ICPU(0x2d, core_params),
+	ICPU(0x3a, core_params),
+	ICPU(0x3c, core_params),
+	ICPU(0x3e, core_params),
+	ICPU(0x3f, core_params),
+	ICPU(0x45, core_params),
+	ICPU(0x46, core_params),
 	{}
 };
 MODULE_DEVICE_TABLE(x86cpu, intel_pstate_cpu_ids);
@@ -554,8 +582,7 @@ static int intel_pstate_init_cpu(unsigned int cpunum)
 	intel_pstate_get_cpu_pstates(cpu);
 
 	cpu->cpu = cpunum;
-	cpu->pstate_policy =
-		(struct pstate_adjust_policy *)id->driver_data;
+
 	init_timer_deferrable(&cpu->timer);
 	cpu->timer.function = intel_pstate_timer_func;
 	cpu->timer.data =
@@ -683,9 +710,9 @@ static int intel_pstate_msrs_not_valid(void)
 	rdmsrl(MSR_IA32_APERF, aperf);
 	rdmsrl(MSR_IA32_MPERF, mperf);
 
-	if (!intel_pstate_min_pstate() ||
-		!intel_pstate_max_pstate() ||
-		!intel_pstate_turbo_pstate())
+	if (!pstate_funcs.get_max() ||
+		!pstate_funcs.get_min() ||
+		!pstate_funcs.get_turbo())
 		return -ENODEV;
 
 	rdmsrl(MSR_IA32_APERF, tmp);
@@ -698,10 +725,30 @@ static int intel_pstate_msrs_not_valid(void)
 
 	return 0;
 }
+
+void copy_pid_params(struct pstate_adjust_policy *policy)
+{
+	pid_params.sample_rate_ms = policy->sample_rate_ms;
+	pid_params.p_gain_pct = policy->p_gain_pct;
+	pid_params.i_gain_pct = policy->i_gain_pct;
+	pid_params.d_gain_pct = policy->d_gain_pct;
+	pid_params.deadband = policy->deadband;
+	pid_params.setpoint = policy->setpoint;
+}
+
+void copy_cpu_funcs(struct pstate_funcs *funcs)
+{
+	pstate_funcs.get_max   = funcs->get_max;
+	pstate_funcs.get_min   = funcs->get_min;
+	pstate_funcs.get_turbo = funcs->get_turbo;
+	pstate_funcs.set       = funcs->set;
+}
+
 static int __init intel_pstate_init(void)
 {
 	int cpu, rc = 0;
 	const struct x86_cpu_id *id;
+	struct cpu_defaults *cpu_info;
 
 	if (no_load)
 		return -ENODEV;
@@ -710,6 +757,11 @@ static int __init intel_pstate_init(void)
 	if (!id)
 		return -ENODEV;
 
+	cpu_info = (struct cpu_defaults *)id->driver_data;
+
+	copy_pid_params(&cpu_info->pid_policy);
+	copy_cpu_funcs(&cpu_info->funcs);
+
 	if (intel_pstate_msrs_not_valid())
 		return -ENODEV;
 
-- 
cgit 


From 19e77c28dbf1972305da0dfeb92a62f83df3a91d Mon Sep 17 00:00:00 2001
From: Dirk Brandewie <dirk.j.brandewie@intel.com>
Date: Mon, 21 Oct 2013 09:20:35 -0700
Subject: intel_pstate: Add Baytrail support

Add support for the Baytrail processor.

Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/intel_pstate.c | 35 +++++++++++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 6b37c9ff1d64..27c2753909fe 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -33,6 +33,8 @@
 
 #define SAMPLE_COUNT		3
 
+#define BYT_RATIOS	0x66a
+
 #define FRAC_BITS 8
 #define int_tofp(X) ((int64_t)(X) << FRAC_BITS)
 #define fp_toint(X) ((X) >> FRAC_BITS)
@@ -342,6 +344,20 @@ static void intel_pstate_sysfs_expose_params(void)
 }
 
 /************************** sysfs end ************************/
+static int byt_get_min_pstate(void)
+{
+	u64 value;
+	rdmsrl(BYT_RATIOS, value);
+	return value & 0xFF;
+}
+
+static int byt_get_max_pstate(void)
+{
+	u64 value;
+	rdmsrl(BYT_RATIOS, value);
+	return (value >> 16) & 0xFF;
+}
+
 static int core_get_min_pstate(void)
 {
 	u64 value;
@@ -396,6 +412,24 @@ static struct cpu_defaults core_params = {
 	},
 };
 
+static struct cpu_defaults byt_params = {
+	.pid_policy = {
+		.sample_rate_ms = 10,
+		.deadband = 0,
+		.setpoint = 97,
+		.p_gain_pct = 14,
+		.d_gain_pct = 0,
+		.i_gain_pct = 4,
+	},
+	.funcs = {
+		.get_max = byt_get_max_pstate,
+		.get_min = byt_get_min_pstate,
+		.get_turbo = byt_get_max_pstate,
+		.set = core_set_pstate,
+	},
+};
+
+
 static void intel_pstate_get_min_max(struct cpudata *cpu, int *min, int *max)
 {
 	int max_perf = cpu->pstate.turbo_pstate;
@@ -553,6 +587,7 @@ static void intel_pstate_timer_func(unsigned long __data)
 static const struct x86_cpu_id intel_pstate_cpu_ids[] = {
 	ICPU(0x2a, core_params),
 	ICPU(0x2d, core_params),
+	ICPU(0x37, byt_params),
 	ICPU(0x3a, core_params),
 	ICPU(0x3c, core_params),
 	ICPU(0x3e, core_params),
-- 
cgit 


From ad7722dab7292dbc1c4586d701ac226b68122d39 Mon Sep 17 00:00:00 2001
From: viresh kumar <viresh.kumar@linaro.org>
Date: Fri, 18 Oct 2013 19:10:15 +0530
Subject: cpufreq: create per policy rwsem instead of per CPU cpu_policy_rwsem

We have per-CPU cpu_policy_rwsem for cpufreq core, but we never use
all of them. We always use rwsem of policy->cpu and so we can
actually make this rwsem per policy instead.

This patch does this change. With this change other tricky situations
are also avoided now, like which lock to take while we are changing
policy->cpu, etc.

Suggested-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq.c | 110 +++++++++++++---------------------------------
 include/linux/cpufreq.h   |  14 ++++++
 2 files changed, 45 insertions(+), 79 deletions(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 87ed83a6c894..6c9cbb9ebd1f 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -52,47 +52,6 @@ static inline bool has_target(void)
 	return cpufreq_driver->target_index || cpufreq_driver->target;
 }
 
-/*
- * cpu_policy_rwsem is a per CPU reader-writer semaphore designed to cure
- * all cpufreq/hotplug/workqueue/etc related lock issues.
- *
- * The rules for this semaphore:
- * - Any routine that wants to read from the policy structure will
- *   do a down_read on this semaphore.
- * - Any routine that will write to the policy structure and/or may take away
- *   the policy altogether (eg. CPU hotplug), will hold this lock in write
- *   mode before doing so.
- *
- * Additional rules:
- * - Governor routines that can be called in cpufreq hotplug path should not
- *   take this sem as top level hotplug notifier handler takes this.
- * - Lock should not be held across
- *     __cpufreq_governor(data, CPUFREQ_GOV_STOP);
- */
-static DEFINE_PER_CPU(struct rw_semaphore, cpu_policy_rwsem);
-
-#define lock_policy_rwsem(mode, cpu)					\
-static void lock_policy_rwsem_##mode(int cpu)				\
-{									\
-	struct cpufreq_policy *policy = per_cpu(cpufreq_cpu_data, cpu);	\
-	BUG_ON(!policy);						\
-	down_##mode(&per_cpu(cpu_policy_rwsem, policy->cpu));		\
-}
-
-lock_policy_rwsem(read, cpu);
-lock_policy_rwsem(write, cpu);
-
-#define unlock_policy_rwsem(mode, cpu)					\
-static void unlock_policy_rwsem_##mode(int cpu)				\
-{									\
-	struct cpufreq_policy *policy = per_cpu(cpufreq_cpu_data, cpu);	\
-	BUG_ON(!policy);						\
-	up_##mode(&per_cpu(cpu_policy_rwsem, policy->cpu));		\
-}
-
-unlock_policy_rwsem(read, cpu);
-unlock_policy_rwsem(write, cpu);
-
 /*
  * rwsem to guarantee that cpufreq driver module doesn't unload during critical
  * sections
@@ -688,14 +647,14 @@ static ssize_t show(struct kobject *kobj, struct attribute *attr, char *buf)
 	if (!down_read_trylock(&cpufreq_rwsem))
 		return -EINVAL;
 
-	lock_policy_rwsem_read(policy->cpu);
+	down_read(&policy->rwsem);
 
 	if (fattr->show)
 		ret = fattr->show(policy, buf);
 	else
 		ret = -EIO;
 
-	unlock_policy_rwsem_read(policy->cpu);
+	up_read(&policy->rwsem);
 	up_read(&cpufreq_rwsem);
 
 	return ret;
@@ -716,14 +675,14 @@ static ssize_t store(struct kobject *kobj, struct attribute *attr,
 	if (!down_read_trylock(&cpufreq_rwsem))
 		goto unlock;
 
-	lock_policy_rwsem_write(policy->cpu);
+	down_write(&policy->rwsem);
 
 	if (fattr->store)
 		ret = fattr->store(policy, buf, count);
 	else
 		ret = -EIO;
 
-	unlock_policy_rwsem_write(policy->cpu);
+	up_write(&policy->rwsem);
 
 	up_read(&cpufreq_rwsem);
 unlock:
@@ -900,7 +859,7 @@ static int cpufreq_add_policy_cpu(struct cpufreq_policy *policy,
 		}
 	}
 
-	lock_policy_rwsem_write(policy->cpu);
+	down_write(&policy->rwsem);
 
 	write_lock_irqsave(&cpufreq_driver_lock, flags);
 
@@ -908,7 +867,7 @@ static int cpufreq_add_policy_cpu(struct cpufreq_policy *policy,
 	per_cpu(cpufreq_cpu_data, cpu) = policy;
 	write_unlock_irqrestore(&cpufreq_driver_lock, flags);
 
-	unlock_policy_rwsem_write(policy->cpu);
+	up_write(&policy->rwsem);
 
 	if (has_target()) {
 		if ((ret = __cpufreq_governor(policy, CPUFREQ_GOV_START)) ||
@@ -955,6 +914,8 @@ static struct cpufreq_policy *cpufreq_policy_alloc(void)
 		goto err_free_cpumask;
 
 	INIT_LIST_HEAD(&policy->policy_list);
+	init_rwsem(&policy->rwsem);
+
 	return policy;
 
 err_free_cpumask:
@@ -977,19 +938,12 @@ static void update_policy_cpu(struct cpufreq_policy *policy, unsigned int cpu)
 	if (WARN_ON(cpu == policy->cpu))
 		return;
 
-	/*
-	 * Take direct locks as lock_policy_rwsem_write wouldn't work here.
-	 * Also lock for last cpu is enough here as contention will happen only
-	 * after policy->cpu is changed and after it is changed, other threads
-	 * will try to acquire lock for new cpu. And policy is already updated
-	 * by then.
-	 */
-	down_write(&per_cpu(cpu_policy_rwsem, policy->cpu));
+	down_write(&policy->rwsem);
 
 	policy->last_cpu = policy->cpu;
 	policy->cpu = cpu;
 
-	up_write(&per_cpu(cpu_policy_rwsem, policy->last_cpu));
+	up_write(&policy->rwsem);
 
 	cpufreq_frequency_table_update_policy_cpu(policy);
 	blocking_notifier_call_chain(&cpufreq_policy_notifier_list,
@@ -1181,9 +1135,9 @@ static int cpufreq_nominate_new_policy_cpu(struct cpufreq_policy *policy,
 	if (ret) {
 		pr_err("%s: Failed to move kobj: %d", __func__, ret);
 
-		lock_policy_rwsem_write(old_cpu);
+		down_write(&policy->rwsem);
 		cpumask_set_cpu(old_cpu, policy->cpus);
-		unlock_policy_rwsem_write(old_cpu);
+		up_write(&policy->rwsem);
 
 		ret = sysfs_create_link(&cpu_dev->kobj, &policy->kobj,
 					"cpufreq");
@@ -1234,9 +1188,9 @@ static int __cpufreq_remove_dev_prepare(struct device *dev,
 			policy->governor->name, CPUFREQ_NAME_LEN);
 #endif
 
-	lock_policy_rwsem_read(cpu);
+	down_read(&policy->rwsem);
 	cpus = cpumask_weight(policy->cpus);
-	unlock_policy_rwsem_read(cpu);
+	up_read(&policy->rwsem);
 
 	if (cpu != policy->cpu) {
 		if (!frozen)
@@ -1276,12 +1230,12 @@ static int __cpufreq_remove_dev_finish(struct device *dev,
 		return -EINVAL;
 	}
 
-	lock_policy_rwsem_write(cpu);
+	down_write(&policy->rwsem);
 	cpus = cpumask_weight(policy->cpus);
 
 	if (cpus > 1)
 		cpumask_clear_cpu(cpu, policy->cpus);
-	unlock_policy_rwsem_write(cpu);
+	up_write(&policy->rwsem);
 
 	/* If cpu is last user of policy, free policy */
 	if (cpus == 1) {
@@ -1296,10 +1250,10 @@ static int __cpufreq_remove_dev_finish(struct device *dev,
 		}
 
 		if (!frozen) {
-			lock_policy_rwsem_read(cpu);
+			down_read(&policy->rwsem);
 			kobj = &policy->kobj;
 			cmp = &policy->kobj_unregister;
-			unlock_policy_rwsem_read(cpu);
+			up_read(&policy->rwsem);
 			kobject_put(kobj);
 
 			/*
@@ -1479,19 +1433,22 @@ static unsigned int __cpufreq_get(unsigned int cpu)
  */
 unsigned int cpufreq_get(unsigned int cpu)
 {
+	struct cpufreq_policy *policy = per_cpu(cpufreq_cpu_data, cpu);
 	unsigned int ret_freq = 0;
 
 	if (cpufreq_disabled() || !cpufreq_driver)
 		return -ENOENT;
 
+	BUG_ON(!policy);
+
 	if (!down_read_trylock(&cpufreq_rwsem))
 		return 0;
 
-	lock_policy_rwsem_read(cpu);
+	down_read(&policy->rwsem);
 
 	ret_freq = __cpufreq_get(cpu);
 
-	unlock_policy_rwsem_read(cpu);
+	up_read(&policy->rwsem);
 	up_read(&cpufreq_rwsem);
 
 	return ret_freq;
@@ -1744,11 +1701,11 @@ int cpufreq_driver_target(struct cpufreq_policy *policy,
 {
 	int ret = -EINVAL;
 
-	lock_policy_rwsem_write(policy->cpu);
+	down_write(&policy->rwsem);
 
 	ret = __cpufreq_driver_target(policy, target_freq, relation);
 
-	unlock_policy_rwsem_write(policy->cpu);
+	up_write(&policy->rwsem);
 
 	return ret;
 }
@@ -1979,10 +1936,10 @@ static int cpufreq_set_policy(struct cpufreq_policy *policy,
 			/* end old governor */
 			if (policy->governor) {
 				__cpufreq_governor(policy, CPUFREQ_GOV_STOP);
-				unlock_policy_rwsem_write(new_policy->cpu);
+				up_write(&policy->rwsem);
 				__cpufreq_governor(policy,
 						CPUFREQ_GOV_POLICY_EXIT);
-				lock_policy_rwsem_write(new_policy->cpu);
+				down_write(&policy->rwsem);
 			}
 
 			/* start new governor */
@@ -1991,10 +1948,10 @@ static int cpufreq_set_policy(struct cpufreq_policy *policy,
 				if (!__cpufreq_governor(policy, CPUFREQ_GOV_START)) {
 					failed = 0;
 				} else {
-					unlock_policy_rwsem_write(new_policy->cpu);
+					up_write(&policy->rwsem);
 					__cpufreq_governor(policy,
 							CPUFREQ_GOV_POLICY_EXIT);
-					lock_policy_rwsem_write(new_policy->cpu);
+					down_write(&policy->rwsem);
 				}
 			}
 
@@ -2040,7 +1997,7 @@ int cpufreq_update_policy(unsigned int cpu)
 		goto no_policy;
 	}
 
-	lock_policy_rwsem_write(cpu);
+	down_write(&policy->rwsem);
 
 	pr_debug("updating policy for CPU %u\n", cpu);
 	memcpy(&new_policy, policy, sizeof(*policy));
@@ -2067,7 +2024,7 @@ int cpufreq_update_policy(unsigned int cpu)
 
 	ret = cpufreq_set_policy(policy, &new_policy);
 
-	unlock_policy_rwsem_write(cpu);
+	up_write(&policy->rwsem);
 
 	cpufreq_cpu_put(policy);
 no_policy:
@@ -2225,14 +2182,9 @@ EXPORT_SYMBOL_GPL(cpufreq_unregister_driver);
 
 static int __init cpufreq_core_init(void)
 {
-	int cpu;
-
 	if (cpufreq_disabled())
 		return -ENODEV;
 
-	for_each_possible_cpu(cpu)
-		init_rwsem(&per_cpu(cpu_policy_rwsem, cpu));
-
 	cpufreq_global_kobject = kobject_create();
 	BUG_ON(!cpufreq_global_kobject);
 	register_syscore_ops(&cpufreq_syscore_ops);
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index e8c77d330479..93a8c34d6c7f 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -85,6 +85,20 @@ struct cpufreq_policy {
 	struct list_head        policy_list;
 	struct kobject		kobj;
 	struct completion	kobj_unregister;
+
+	/*
+	 * The rules for this semaphore:
+	 * - Any routine that wants to read from the policy structure will
+	 *   do a down_read on this semaphore.
+	 * - Any routine that will write to the policy structure and/or may take away
+	 *   the policy altogether (eg. CPU hotplug), will hold this lock in write
+	 *   mode before doing so.
+	 *
+	 * Additional rules:
+	 * - Lock should not be held across
+	 *     __cpufreq_governor(data, CPUFREQ_GOV_POLICY_EXIT);
+	 */
+	struct rw_semaphore	rwsem;
 };
 
 /* Only for ACPI */
-- 
cgit 


From 4c78b520ee8f9c4b085912f1db2f1308f7ae5890 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Fri, 25 Oct 2013 21:10:00 +0100
Subject: mfd: as3722: Don't export the regmap config

It's not used outside this file so can be static.

Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/as3722.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/as3722.c b/drivers/mfd/as3722.c
index cd8ee593cfa8..f161f2e00df7 100644
--- a/drivers/mfd/as3722.c
+++ b/drivers/mfd/as3722.c
@@ -314,7 +314,7 @@ static const struct regmap_access_table as3722_volatile_table = {
 	.n_no_ranges = ARRAY_SIZE(as3722_cacheable_ranges),
 };
 
-const struct regmap_config as3722_regmap_config = {
+static const struct regmap_config as3722_regmap_config = {
 	.reg_bits = 8,
 	.val_bits = 8,
 	.max_register = AS3722_MAX_REGISTER,
-- 
cgit 


From afb5a7793144179bfd856e3c928b69c43e2a1d8a Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Sat, 26 Oct 2013 00:33:58 +0200
Subject: ALSA: hda - Sync EAPD with vmaster on AD1984A Thinkpads

As EAPD on NID 0x12 (speaker pin) is used as the master amp on
Thinkpads with AD1984A codec, we can hook this to vmaster for saving a
bit more power at master mute state.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_analog.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index 2aa2f579b4d6..87d2e0335ae4 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -973,8 +973,11 @@ static void ad1884_fixup_thinkpad(struct hda_codec *codec,
 {
 	struct ad198x_spec *spec = codec->spec;
 
-	if (action == HDA_FIXUP_ACT_PRE_PROBE)
+	if (action == HDA_FIXUP_ACT_PRE_PROBE) {
 		spec->gen.keep_eapd_on = 1;
+		spec->gen.vmaster_mute.hook = ad_vmaster_eapd_hook;
+		spec->eapd_nid = 0x12;
+	}
 }
 
 /* set magic COEFs for dmic */
-- 
cgit 


From 6de7ef3e309acb1e55ae122b85a2665064832b0c Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 6 Sep 2013 13:31:09 +0530
Subject: ab8500-charger: Check return value of regulator_enable
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Check the return value of regulator_enable to silence the following
type of warnings:
drivers/power/ab8500_charger.c:1390:20: warning: ignoring return value
of ‘regulator_enable’, declared with attribute warn_unused_result
[-Wunused-result]

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
---
 drivers/power/ab8500_charger.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c
index a4c4a10b3a41..fd350189b632 100644
--- a/drivers/power/ab8500_charger.c
+++ b/drivers/power/ab8500_charger.c
@@ -1387,8 +1387,12 @@ static int ab8500_charger_ac_en(struct ux500_charger *charger,
 		 * the GPADC module independant of the AB8500 chargers
 		 */
 		if (!di->vddadc_en_ac) {
-			regulator_enable(di->regu);
-			di->vddadc_en_ac = true;
+			ret = regulator_enable(di->regu);
+			if (ret)
+				dev_warn(di->dev,
+					"Failed to enable regulator\n");
+			else
+				di->vddadc_en_ac = true;
 		}
 
 		/* Check if the requested voltage or current is valid */
@@ -1556,8 +1560,12 @@ static int ab8500_charger_usb_en(struct ux500_charger *charger,
 		 * the GPADC module independant of the AB8500 chargers
 		 */
 		if (!di->vddadc_en_usb) {
-			regulator_enable(di->regu);
-			di->vddadc_en_usb = true;
+			ret = regulator_enable(di->regu);
+			if (ret)
+				dev_warn(di->dev,
+					"Failed to enable regulator\n");
+			else
+				di->vddadc_en_usb = true;
 		}
 
 		/* Enable USB charging */
-- 
cgit 


From 08a5c7e6842f9c4c1556f147af2a561056345a45 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 6 Sep 2013 13:31:10 +0530
Subject: ab8500-charger: Remove redundant break

Each of the if-else blocks has a break statement. Remove the additional
one which is unreachable.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
---
 drivers/power/ab8500_charger.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/power/ab8500_charger.c b/drivers/power/ab8500_charger.c
index fd350189b632..19110aa613a1 100644
--- a/drivers/power/ab8500_charger.c
+++ b/drivers/power/ab8500_charger.c
@@ -766,7 +766,6 @@ static int ab8500_charger_max_usb_curr(struct ab8500_charger *di,
 			ret = -ENXIO;
 			break;
 		}
-		break;
 	case USB_STAT_CARKIT_1:
 	case USB_STAT_CARKIT_2:
 	case USB_STAT_ACA_DOCK_CHARGER:
-- 
cgit 


From 508b2c13499aa459ff34123ec5641a72ca46777c Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 6 Sep 2013 13:31:11 +0530
Subject: pm2301-charger: Check return value of regulator_enable
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Check the return value of regulator_enable to silence the following
warning:
drivers/power/pm2301_charger.c:725:20: warning:
ignoring return value of ‘regulator_enable’, declared with
attribute warn_unused_result [-Wunused-result]

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
---
 drivers/power/pm2301_charger.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/power/pm2301_charger.c b/drivers/power/pm2301_charger.c
index ffa10ed83eb1..7214b667f940 100644
--- a/drivers/power/pm2301_charger.c
+++ b/drivers/power/pm2301_charger.c
@@ -722,8 +722,12 @@ static int pm2xxx_charger_ac_en(struct ux500_charger *charger,
 
 		dev_dbg(pm2->dev, "Enable AC: %dmV %dmA\n", vset, iset);
 		if (!pm2->vddadc_en_ac) {
-			regulator_enable(pm2->regu);
-			pm2->vddadc_en_ac = true;
+			ret = regulator_enable(pm2->regu);
+			if (ret)
+				dev_warn(pm2->dev,
+					"Failed to enable vddadc regulator\n");
+			else
+				pm2->vddadc_en_ac = true;
 		}
 
 		ret = pm2xxx_charging_init(pm2);
-- 
cgit 


From 83bd57aeb06b1d6db2729082dd90a0286f3e3674 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 6 Sep 2013 13:31:12 +0530
Subject: pm2301-charger: Staticize pm2xxx_charger_die_therm_mngt

pm2xxx_charger_die_therm_mngt is used only in this file. Make it static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
---
 drivers/power/pm2301_charger.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/power/pm2301_charger.c b/drivers/power/pm2301_charger.c
index 7214b667f940..b733c692a17f 100644
--- a/drivers/power/pm2301_charger.c
+++ b/drivers/power/pm2301_charger.c
@@ -205,7 +205,7 @@ static int pm2xxx_charger_batt_therm_mngt(struct pm2xxx_charger *pm2, int val)
 }
 
 
-int pm2xxx_charger_die_therm_mngt(struct pm2xxx_charger *pm2, int val)
+static int pm2xxx_charger_die_therm_mngt(struct pm2xxx_charger *pm2, int val)
 {
 	queue_work(pm2->charger_wq, &pm2->check_main_thermal_prot_work);
 
-- 
cgit 


From ce77399226313a72578b5b0d67e289d3f165b8ba Mon Sep 17 00:00:00 2001
From: Darbha Sriharsha <dsriharsha@nvidia.com>
Date: Fri, 11 Oct 2013 17:15:43 -0400
Subject: power_supply: Add support for bq24735 charger

Adds support for the bq24735 charger chipset. The bq24735 is a
high-efficiency, synchronous battery charger.

It allows control of the charging current, input current, and the charger
voltage DAC's through SMBus.

Signed-off-by: Darbha Sriharsha <dsriharsha@nvidia.com>
Signed-off-by: Rhyland Klein <rklein@nvidia.com>
Thanks-to: Stephen Warren <swarren@wwwdotorg.org>
Thanks-to: Thierry Reding <thierry.reding@gmail.com>
Thanks-to: Manish Badarkhe <badarkhe.manish@gmail.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
---
 .../bindings/power_supply/ti,bq24735.txt           |  32 ++
 drivers/power/Kconfig                              |   6 +
 drivers/power/Makefile                             |   1 +
 drivers/power/bq24735-charger.c                    | 419 +++++++++++++++++++++
 include/linux/power/bq24735-charger.h              |  39 ++
 5 files changed, 497 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/power_supply/ti,bq24735.txt
 create mode 100644 drivers/power/bq24735-charger.c
 create mode 100644 include/linux/power/bq24735-charger.h

diff --git a/Documentation/devicetree/bindings/power_supply/ti,bq24735.txt b/Documentation/devicetree/bindings/power_supply/ti,bq24735.txt
new file mode 100644
index 000000000000..4f6a550184d0
--- /dev/null
+++ b/Documentation/devicetree/bindings/power_supply/ti,bq24735.txt
@@ -0,0 +1,32 @@
+TI BQ24735 Charge Controller
+~~~~~~~~~~
+
+Required properties :
+ - compatible : "ti,bq24735"
+
+Optional properties :
+ - interrupts : Specify the interrupt to be used to trigger when the AC
+   adapter is either plugged in or removed.
+ - ti,ac-detect-gpios : This GPIO is optionally used to read the AC adapter
+   presence. This is a Host GPIO that is configured as an input and
+   connected to the bq24735.
+ - ti,charge-current : Used to control and set the charging current. This value
+   must be between 128mA and 8.128A with a 64mA step resolution. The POR value
+   is 0x0000h. This number is in mA (e.g. 8192), see spec for more information
+   about the ChargeCurrent (0x14h) register.
+ - ti,charge-voltage : Used to control and set the charging voltage. This value
+   must be between 1.024V and 19.2V with a 16mV step resolution. The POR value
+   is 0x0000h. This number is in mV (e.g. 19200), see spec for more information
+   about the ChargeVoltage (0x15h) register.
+ - ti,input-current : Used to control and set the charger input current. This
+   value must be between 128mA and 8.064A with a 128mA step resolution. The
+   POR value is 0x1000h. This number is in mA (e.g. 8064), see the spec for
+   more information about the InputCurrent (0x3fh) register.
+
+Example:
+
+	bq24735@9 {
+		compatible = "ti,bq24735";
+		reg = <0x9>;
+		ti,ac-detect-gpios = <&gpio 72 0x1>;
+	}
diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig
index e6f92b450913..5e2054afe840 100644
--- a/drivers/power/Kconfig
+++ b/drivers/power/Kconfig
@@ -346,6 +346,12 @@ config CHARGER_BQ24190
 	help
 	  Say Y to enable support for the TI BQ24190 battery charger.
 
+config CHARGER_BQ24735
+	tristate "TI BQ24735 battery charger support"
+	depends on I2C && GPIOLIB
+	help
+	  Say Y to enable support for the TI BQ24735 battery charger.
+
 config CHARGER_SMB347
 	tristate "Summit Microelectronics SMB347 Battery Charger"
 	depends on I2C
diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index a4b74177706f..372b4e8ab598 100644
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -52,6 +52,7 @@ obj-$(CONFIG_CHARGER_MAX8997)	+= max8997_charger.o
 obj-$(CONFIG_CHARGER_MAX8998)	+= max8998_charger.o
 obj-$(CONFIG_CHARGER_BQ2415X)	+= bq2415x_charger.o
 obj-$(CONFIG_CHARGER_BQ24190)	+= bq24190_charger.o
+obj-$(CONFIG_CHARGER_BQ24735)	+= bq24735-charger.o
 obj-$(CONFIG_POWER_AVS)		+= avs/
 obj-$(CONFIG_CHARGER_SMB347)	+= smb347-charger.o
 obj-$(CONFIG_CHARGER_TPS65090)	+= tps65090-charger.o
diff --git a/drivers/power/bq24735-charger.c b/drivers/power/bq24735-charger.c
new file mode 100644
index 000000000000..d022b823305b
--- /dev/null
+++ b/drivers/power/bq24735-charger.c
@@ -0,0 +1,419 @@
+/*
+ * Battery charger driver for TI BQ24735
+ *
+ * Copyright (c) 2013, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/power_supply.h>
+#include <linux/slab.h>
+
+#include <linux/power/bq24735-charger.h>
+
+#define BQ24735_CHG_OPT			0x12
+#define BQ24735_CHG_OPT_CHARGE_DISABLE	(1 << 0)
+#define BQ24735_CHG_OPT_AC_PRESENT	(1 << 4)
+#define BQ24735_CHARGE_CURRENT		0x14
+#define BQ24735_CHARGE_CURRENT_MASK	0x1fc0
+#define BQ24735_CHARGE_VOLTAGE		0x15
+#define BQ24735_CHARGE_VOLTAGE_MASK	0x7ff0
+#define BQ24735_INPUT_CURRENT		0x3f
+#define BQ24735_INPUT_CURRENT_MASK	0x1f80
+#define BQ24735_MANUFACTURER_ID		0xfe
+#define BQ24735_DEVICE_ID		0xff
+
+struct bq24735 {
+	struct power_supply	charger;
+	struct i2c_client	*client;
+	struct bq24735_platform	*pdata;
+};
+
+static inline struct bq24735 *to_bq24735(struct power_supply *psy)
+{
+	return container_of(psy, struct bq24735, charger);
+}
+
+static enum power_supply_property bq24735_charger_properties[] = {
+	POWER_SUPPLY_PROP_ONLINE,
+};
+
+static inline int bq24735_write_word(struct i2c_client *client, u8 reg,
+				     u16 value)
+{
+	return i2c_smbus_write_word_data(client, reg, le16_to_cpu(value));
+}
+
+static inline int bq24735_read_word(struct i2c_client *client, u8 reg)
+{
+	s32 ret = i2c_smbus_read_word_data(client, reg);
+
+	return ret < 0 ? ret : le16_to_cpu(ret);
+}
+
+static int bq24735_update_word(struct i2c_client *client, u8 reg,
+			       u16 mask, u16 value)
+{
+	unsigned int tmp;
+	int ret;
+
+	ret = bq24735_read_word(client, reg);
+	if (ret < 0)
+		return ret;
+
+	tmp = ret & ~mask;
+	tmp |= value & mask;
+
+	return bq24735_write_word(client, reg, tmp);
+}
+
+static inline int bq24735_enable_charging(struct bq24735 *charger)
+{
+	return bq24735_update_word(charger->client, BQ24735_CHG_OPT,
+				   BQ24735_CHG_OPT_CHARGE_DISABLE,
+				   ~BQ24735_CHG_OPT_CHARGE_DISABLE);
+}
+
+static inline int bq24735_disable_charging(struct bq24735 *charger)
+{
+	return bq24735_update_word(charger->client, BQ24735_CHG_OPT,
+				   BQ24735_CHG_OPT_CHARGE_DISABLE,
+				   BQ24735_CHG_OPT_CHARGE_DISABLE);
+}
+
+static int bq24735_config_charger(struct bq24735 *charger)
+{
+	struct bq24735_platform *pdata = charger->pdata;
+	int ret;
+	u16 value;
+
+	if (pdata->charge_current) {
+		value = pdata->charge_current & BQ24735_CHARGE_CURRENT_MASK;
+
+		ret = bq24735_write_word(charger->client,
+					 BQ24735_CHARGE_CURRENT, value);
+		if (ret < 0) {
+			dev_err(&charger->client->dev,
+				"Failed to write charger current : %d\n",
+				ret);
+			return ret;
+		}
+	}
+
+	if (pdata->charge_voltage) {
+		value = pdata->charge_voltage & BQ24735_CHARGE_VOLTAGE_MASK;
+
+		ret = bq24735_write_word(charger->client,
+					 BQ24735_CHARGE_VOLTAGE, value);
+		if (ret < 0) {
+			dev_err(&charger->client->dev,
+				"Failed to write charger voltage : %d\n",
+				ret);
+			return ret;
+		}
+	}
+
+	if (pdata->input_current) {
+		value = pdata->input_current & BQ24735_INPUT_CURRENT_MASK;
+
+		ret = bq24735_write_word(charger->client,
+					 BQ24735_INPUT_CURRENT, value);
+		if (ret < 0) {
+			dev_err(&charger->client->dev,
+				"Failed to write input current : %d\n",
+				ret);
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static bool bq24735_charger_is_present(struct bq24735 *charger)
+{
+	struct bq24735_platform *pdata = charger->pdata;
+	int ret;
+
+	if (pdata->status_gpio_valid) {
+		ret = gpio_get_value_cansleep(pdata->status_gpio);
+		return ret ^= pdata->status_gpio_active_low == 0;
+	} else {
+		int ac = 0;
+
+		ac = bq24735_read_word(charger->client, BQ24735_CHG_OPT);
+		if (ac < 0) {
+			dev_err(&charger->client->dev,
+				"Failed to read charger options : %d\n",
+				ac);
+			return false;
+		}
+		return (ac & BQ24735_CHG_OPT_AC_PRESENT) ? true : false;
+	}
+
+	return false;
+}
+
+static irqreturn_t bq24735_charger_isr(int irq, void *devid)
+{
+	struct power_supply *psy = devid;
+	struct bq24735 *charger = to_bq24735(psy);
+
+	if (bq24735_charger_is_present(charger))
+		bq24735_enable_charging(charger);
+	else
+		bq24735_disable_charging(charger);
+
+	power_supply_changed(psy);
+
+	return IRQ_HANDLED;
+}
+
+static int bq24735_charger_get_property(struct power_supply *psy,
+					enum power_supply_property psp,
+					union power_supply_propval *val)
+{
+	struct bq24735 *charger;
+
+	charger = container_of(psy, struct bq24735, charger);
+
+	switch (psp) {
+	case POWER_SUPPLY_PROP_ONLINE:
+		val->intval = bq24735_charger_is_present(charger) ? 1 : 0;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static struct bq24735_platform *bq24735_parse_dt_data(struct i2c_client *client)
+{
+	struct bq24735_platform *pdata;
+	struct device_node *np = client->dev.of_node;
+	u32 val;
+	int ret;
+	enum of_gpio_flags flags;
+
+	pdata = devm_kzalloc(&client->dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata) {
+		dev_err(&client->dev,
+			"Memory alloc for bq24735 pdata failed\n");
+		return NULL;
+	}
+
+	pdata->status_gpio = of_get_named_gpio_flags(np, "ti,ac-detect-gpios",
+						     0, &flags);
+
+	if (flags & OF_GPIO_ACTIVE_LOW)
+		pdata->status_gpio_active_low = 1;
+
+	ret = of_property_read_u32(np, "ti,charge-current", &val);
+	if (!ret)
+		pdata->charge_current = val;
+
+	ret = of_property_read_u32(np, "ti,charge-voltage", &val);
+	if (!ret)
+		pdata->charge_voltage = val;
+
+	ret = of_property_read_u32(np, "ti,input-current", &val);
+	if (!ret)
+		pdata->input_current = val;
+
+	return pdata;
+}
+
+static int bq24735_charger_probe(struct i2c_client *client,
+				 const struct i2c_device_id *id)
+{
+	int ret;
+	struct bq24735 *charger;
+	struct power_supply *supply;
+	char *name;
+
+	charger = devm_kzalloc(&client->dev, sizeof(*charger), GFP_KERNEL);
+	if (!charger)
+		return -ENOMEM;
+
+	charger->pdata = client->dev.platform_data;
+
+	if (IS_ENABLED(CONFIG_OF) && !charger->pdata && client->dev.of_node)
+		charger->pdata = bq24735_parse_dt_data(client);
+
+	if (!charger->pdata) {
+		dev_err(&client->dev, "no platform data provided\n");
+		return -EINVAL;
+	}
+
+	name = (char *)charger->pdata->name;
+	if (!name) {
+		name = kasprintf(GFP_KERNEL, "bq24735@%s",
+				 dev_name(&client->dev));
+		if (!name) {
+			dev_err(&client->dev, "Failed to alloc device name\n");
+			return -ENOMEM;
+		}
+	}
+
+	charger->client = client;
+
+	supply = &charger->charger;
+
+	supply->name = name;
+	supply->type = POWER_SUPPLY_TYPE_MAINS;
+	supply->properties = bq24735_charger_properties;
+	supply->num_properties = ARRAY_SIZE(bq24735_charger_properties);
+	supply->get_property = bq24735_charger_get_property;
+	supply->supplied_to = charger->pdata->supplied_to;
+	supply->num_supplicants = charger->pdata->num_supplicants;
+	supply->of_node = client->dev.of_node;
+
+	i2c_set_clientdata(client, charger);
+
+	ret = bq24735_read_word(client, BQ24735_MANUFACTURER_ID);
+	if (ret < 0) {
+		dev_err(&client->dev, "Failed to read manufacturer id : %d\n",
+			ret);
+		goto err_free_name;
+	} else if (ret != 0x0040) {
+		dev_err(&client->dev,
+			"manufacturer id mismatch. 0x0040 != 0x%04x\n", ret);
+		ret = -ENODEV;
+		goto err_free_name;
+	}
+
+	ret = bq24735_read_word(client, BQ24735_DEVICE_ID);
+	if (ret < 0) {
+		dev_err(&client->dev, "Failed to read device id : %d\n", ret);
+		goto err_free_name;
+	} else if (ret != 0x000B) {
+		dev_err(&client->dev,
+			"device id mismatch. 0x000b != 0x%04x\n", ret);
+		ret = -ENODEV;
+		goto err_free_name;
+	}
+
+	if (gpio_is_valid(charger->pdata->status_gpio)) {
+		ret = devm_gpio_request(&client->dev,
+					charger->pdata->status_gpio,
+					name);
+		if (ret) {
+			dev_err(&client->dev,
+				"Failed GPIO request for GPIO %d: %d\n",
+				charger->pdata->status_gpio, ret);
+		}
+
+		charger->pdata->status_gpio_valid = !ret;
+	}
+
+	ret = bq24735_config_charger(charger);
+	if (ret < 0) {
+		dev_err(&client->dev, "failed in configuring charger");
+		goto err_free_name;
+	}
+
+	/* check for AC adapter presence */
+	if (bq24735_charger_is_present(charger)) {
+		ret = bq24735_enable_charging(charger);
+		if (ret < 0) {
+			dev_err(&client->dev, "Failed to enable charging\n");
+			goto err_free_name;
+		}
+	}
+
+	ret = power_supply_register(&client->dev, supply);
+	if (ret < 0) {
+		dev_err(&client->dev, "Failed to register power supply: %d\n",
+			ret);
+		goto err_free_name;
+	}
+
+	if (client->irq) {
+		ret = devm_request_threaded_irq(&client->dev, client->irq,
+						NULL, bq24735_charger_isr,
+						IRQF_TRIGGER_RISING |
+						IRQF_TRIGGER_FALLING |
+						IRQF_ONESHOT,
+						supply->name, supply);
+		if (ret) {
+			dev_err(&client->dev,
+				"Unable to register IRQ %d err %d\n",
+				client->irq, ret);
+			goto err_unregister_supply;
+		}
+	}
+
+	return 0;
+err_unregister_supply:
+	power_supply_unregister(supply);
+err_free_name:
+	if (name != charger->pdata->name)
+		kfree(name);
+
+	return ret;
+}
+
+static int bq24735_charger_remove(struct i2c_client *client)
+{
+	struct bq24735 *charger = i2c_get_clientdata(client);
+
+	if (charger->client->irq)
+		devm_free_irq(&charger->client->dev, charger->client->irq,
+			      &charger->charger);
+
+	power_supply_unregister(&charger->charger);
+
+	if (charger->charger.name != charger->pdata->name)
+		kfree(charger->charger.name);
+
+	return 0;
+}
+
+static const struct i2c_device_id bq24735_charger_id[] = {
+	{ "bq24735-charger", 0 },
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, bq24735_charger_id);
+
+static const struct of_device_id bq24735_match_ids[] = {
+	{ .compatible = "ti,bq24735", },
+	{ /* end */ }
+};
+MODULE_DEVICE_TABLE(of, bq24735_match_ids);
+
+static struct i2c_driver bq24735_charger_driver = {
+	.driver = {
+		.name = "bq24735-charger",
+		.owner = THIS_MODULE,
+		.of_match_table = bq24735_match_ids,
+	},
+	.probe = bq24735_charger_probe,
+	.remove = bq24735_charger_remove,
+	.id_table = bq24735_charger_id,
+};
+
+module_i2c_driver(bq24735_charger_driver);
+
+MODULE_DESCRIPTION("bq24735 battery charging driver");
+MODULE_AUTHOR("Darbha Sriharsha <dsriharsha@nvidia.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/power/bq24735-charger.h b/include/linux/power/bq24735-charger.h
new file mode 100644
index 000000000000..f536164a6069
--- /dev/null
+++ b/include/linux/power/bq24735-charger.h
@@ -0,0 +1,39 @@
+/*
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef __CHARGER_BQ24735_H_
+#define __CHARGER_BQ24735_H_
+
+#include <linux/types.h>
+#include <linux/power_supply.h>
+
+struct bq24735_platform {
+	uint32_t charge_current;
+	uint32_t charge_voltage;
+	uint32_t input_current;
+
+	const char *name;
+
+	int status_gpio;
+	int status_gpio_active_low;
+	bool status_gpio_valid;
+
+	char **supplied_to;
+	size_t num_supplicants;
+};
+
+#endif /* __CHARGER_BQ24735_H_ */
-- 
cgit 


From 4a3ad7b3eade08ad1c760aaa4fe06a36f2584939 Mon Sep 17 00:00:00 2001
From: Hagen Paul Pfeifer <hagen@jauu.net>
Date: Tue, 22 Oct 2013 23:27:06 +0200
Subject: netem: markov loss model transition fix

The transition from markov state "3 => lost packets within a burst
period" to "1 => successfully transmitted packets within a gap period"
has no *additional* loss event. The loss already happen for transition
from 1 -> 3, this additional loss will make things go wild.

E.g. transition probabilities:

p13:   10%
p31:  100%

Expected:

Ploss = p13 / (p13 + p31)
Ploss = ~9.09%

... but it isn't. Even worse: we get a double loss - each time.
So simple don't return true to indicate loss, rather break and return
false.

Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Stefano Salsano <stefano.salsano@uniroma2.it>
Cc: Fabio Ludovici <fabio.ludovici@yahoo.it>
Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sched/sch_netem.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index b87e83d07478..75c94e59a3bd 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -235,7 +235,6 @@ static bool loss_4state(struct netem_sched_data *q)
 			clg->state = 2;
 		else if (clg->a3 < rnd && rnd < clg->a2 + clg->a3) {
 			clg->state = 1;
-			return true;
 		} else if (clg->a2 + clg->a3 < rnd) {
 			clg->state = 3;
 			return true;
-- 
cgit 


From 974daef7f8bb5d7be78fae3a240fcce43cae0135 Mon Sep 17 00:00:00 2001
From: Nikolay Aleksandrov <nikolay@redhat.com>
Date: Wed, 23 Oct 2013 15:28:56 +0200
Subject: net: add missing dev_put() in __netdev_adjacent_dev_insert

I think that a dev_put() is needed in the error path to preserve the
proper dev refcount.

CC: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Acked-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/dev.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/core/dev.c b/net/core/dev.c
index 0918aadc20fd..bdffd654edc4 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4648,6 +4648,7 @@ remove_symlinks:
 
 free_adj:
 	kfree(adj);
+	dev_put(adj_dev);
 
 	return ret;
 }
-- 
cgit 


From f84be2bd96a108b09c8440263fa3adb3fb225fa3 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Wed, 23 Oct 2013 20:05:27 +0200
Subject: net: make net_get_random_once irq safe

I initial build non irq safe version of net_get_random_once because I
would liked to have the freedom to defer even the extraction process of
get_random_bytes until the nonblocking pool is fully seeded.

I don't think this is a good idea anymore and thus this patch makes
net_get_random_once irq safe. Now someone using net_get_random_once does
not need to care from where it is called.

Cc: David S. Miller <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/net.h | 1 -
 net/core/utils.c    | 7 ++++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/linux/net.h b/include/linux/net.h
index aca446b46754..b292a0435571 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -250,7 +250,6 @@ bool __net_get_random_once(void *buf, int nbytes, bool *done,
 #define ___NET_RANDOM_STATIC_KEY_INIT STATIC_KEY_INIT_FALSE
 #endif /* HAVE_JUMP_LABEL */
 
-/* BE CAREFUL: this function is not interrupt safe */
 #define net_get_random_once(buf, nbytes)				\
 	({								\
 		bool ___ret = false;					\
diff --git a/net/core/utils.c b/net/core/utils.c
index bf09371e19b1..2f737bf90b3f 100644
--- a/net/core/utils.c
+++ b/net/core/utils.c
@@ -370,16 +370,17 @@ bool __net_get_random_once(void *buf, int nbytes, bool *done,
 			   struct static_key *done_key)
 {
 	static DEFINE_SPINLOCK(lock);
+	unsigned long flags;
 
-	spin_lock_bh(&lock);
+	spin_lock_irqsave(&lock, flags);
 	if (*done) {
-		spin_unlock_bh(&lock);
+		spin_unlock_irqrestore(&lock, flags);
 		return false;
 	}
 
 	get_random_bytes(buf, nbytes);
 	*done = true;
-	spin_unlock_bh(&lock);
+	spin_unlock_irqrestore(&lock, flags);
 
 	__net_random_once_disable_jump(done_key);
 
-- 
cgit 


From 66415cf8a1b99d101317f5aa08574b1ec8832672 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Wed, 23 Oct 2013 20:06:00 +0200
Subject: net: initialize hashrnd in flow_dissector with net_get_random_once

We also can defer the initialization of hashrnd in flow_dissector
to its first use. Since net_get_random_once is irq safe now we don't
have to audit the call paths if one of this functions get called by an
interrupt handler.

Cc: David S. Miller <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/flow_dissector.c | 34 +++++++++++++++++++++-------------
 1 file changed, 21 insertions(+), 13 deletions(-)

diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index f8e25ac41c6c..5cac36e6ccd1 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -184,6 +184,22 @@ ipv6:
 EXPORT_SYMBOL(skb_flow_dissect);
 
 static u32 hashrnd __read_mostly;
+static __always_inline void __flow_hash_secret_init(void)
+{
+	net_get_random_once(&hashrnd, sizeof(hashrnd));
+}
+
+static __always_inline u32 __flow_hash_3words(u32 a, u32 b, u32 c)
+{
+	__flow_hash_secret_init();
+	return jhash_3words(a, b, c, hashrnd);
+}
+
+static __always_inline u32 __flow_hash_1word(u32 a)
+{
+	__flow_hash_secret_init();
+	return jhash_1word(a, hashrnd);
+}
 
 /*
  * __skb_get_rxhash: calculate a flow hash based on src/dst addresses
@@ -210,9 +226,9 @@ void __skb_get_rxhash(struct sk_buff *skb)
 		swap(keys.port16[0], keys.port16[1]);
 	}
 
-	hash = jhash_3words((__force u32)keys.dst,
-			    (__force u32)keys.src,
-			    (__force u32)keys.ports, hashrnd);
+	hash = __flow_hash_3words((__force u32)keys.dst,
+				  (__force u32)keys.src,
+				  (__force u32)keys.ports);
 	if (!hash)
 		hash = 1;
 
@@ -248,7 +264,7 @@ u16 __skb_tx_hash(const struct net_device *dev, const struct sk_buff *skb,
 		hash = skb->sk->sk_hash;
 	else
 		hash = (__force u16) skb->protocol;
-	hash = jhash_1word(hash, hashrnd);
+	hash = __flow_hash_1word(hash);
 
 	return (u16) (((u64) hash * qcount) >> 32) + qoffset;
 }
@@ -340,7 +356,7 @@ static inline int get_xps_queue(struct net_device *dev, struct sk_buff *skb)
 				else
 					hash = (__force u16) skb->protocol ^
 					    skb->rxhash;
-				hash = jhash_1word(hash, hashrnd);
+				hash = __flow_hash_1word(hash);
 				queue_index = map->queues[
 				    ((u64)hash * map->len) >> 32];
 			}
@@ -395,11 +411,3 @@ struct netdev_queue *netdev_pick_tx(struct net_device *dev,
 	skb_set_queue_mapping(skb, queue_index);
 	return netdev_get_tx_queue(dev, queue_index);
 }
-
-static int __init initialize_hashrnd(void)
-{
-	get_random_bytes(&hashrnd, sizeof(hashrnd));
-	return 0;
-}
-
-late_initcall_sync(initialize_hashrnd);
-- 
cgit 


From 7f29405403d7c17f539c099987972b862e7e5255 Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Wed, 23 Oct 2013 16:02:42 -0700
Subject: net: fix rtnl notification in atomic context

commit 991fb3f74c "dev: always advertise rx_flags changes via netlink"
introduced rtnl notification from __dev_set_promiscuity(),
which can be called in atomic context.

Steps to reproduce:
ip tuntap add dev tap1 mode tap
ifconfig tap1 up
tcpdump -nei tap1 &
ip tuntap del dev tap1 mode tap

[  271.627994] device tap1 left promiscuous mode
[  271.639897] BUG: sleeping function called from invalid context at mm/slub.c:940
[  271.664491] in_atomic(): 1, irqs_disabled(): 0, pid: 3394, name: ip
[  271.677525] INFO: lockdep is turned off.
[  271.690503] CPU: 0 PID: 3394 Comm: ip Tainted: G        W    3.12.0-rc3+ #73
[  271.703996] Hardware name: System manufacturer System Product Name/P8Z77 WS, BIOS 3007 07/26/2012
[  271.731254]  ffffffff81a58506 ffff8807f0d57a58 ffffffff817544e5 ffff88082fa0f428
[  271.760261]  ffff8808071f5f40 ffff8807f0d57a88 ffffffff8108bad1 ffffffff81110ff8
[  271.790683]  0000000000000010 00000000000000d0 00000000000000d0 ffff8807f0d57af8
[  271.822332] Call Trace:
[  271.838234]  [<ffffffff817544e5>] dump_stack+0x55/0x76
[  271.854446]  [<ffffffff8108bad1>] __might_sleep+0x181/0x240
[  271.870836]  [<ffffffff81110ff8>] ? rcu_irq_exit+0x68/0xb0
[  271.887076]  [<ffffffff811a80be>] kmem_cache_alloc_node+0x4e/0x2a0
[  271.903368]  [<ffffffff810b4ddc>] ? vprintk_emit+0x1dc/0x5a0
[  271.919716]  [<ffffffff81614d67>] ? __alloc_skb+0x57/0x2a0
[  271.936088]  [<ffffffff810b4de0>] ? vprintk_emit+0x1e0/0x5a0
[  271.952504]  [<ffffffff81614d67>] __alloc_skb+0x57/0x2a0
[  271.968902]  [<ffffffff8163a0b2>] rtmsg_ifinfo+0x52/0x100
[  271.985302]  [<ffffffff8162ac6d>] __dev_notify_flags+0xad/0xc0
[  272.001642]  [<ffffffff8162ad0c>] __dev_set_promiscuity+0x8c/0x1c0
[  272.017917]  [<ffffffff81731ea5>] ? packet_notifier+0x5/0x380
[  272.033961]  [<ffffffff8162b109>] dev_set_promiscuity+0x29/0x50
[  272.049855]  [<ffffffff8172e937>] packet_dev_mc+0x87/0xc0
[  272.065494]  [<ffffffff81732052>] packet_notifier+0x1b2/0x380
[  272.080915]  [<ffffffff81731ea5>] ? packet_notifier+0x5/0x380
[  272.096009]  [<ffffffff81761c66>] notifier_call_chain+0x66/0x150
[  272.110803]  [<ffffffff8108503e>] __raw_notifier_call_chain+0xe/0x10
[  272.125468]  [<ffffffff81085056>] raw_notifier_call_chain+0x16/0x20
[  272.139984]  [<ffffffff81620190>] call_netdevice_notifiers_info+0x40/0x70
[  272.154523]  [<ffffffff816201d6>] call_netdevice_notifiers+0x16/0x20
[  272.168552]  [<ffffffff816224c5>] rollback_registered_many+0x145/0x240
[  272.182263]  [<ffffffff81622641>] rollback_registered+0x31/0x40
[  272.195369]  [<ffffffff816229c8>] unregister_netdevice_queue+0x58/0x90
[  272.208230]  [<ffffffff81547ca0>] __tun_detach+0x140/0x340
[  272.220686]  [<ffffffff81547ed6>] tun_chr_close+0x36/0x60

Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_main.c |  4 ++--
 include/linux/rtnetlink.h       |  2 +-
 net/core/dev.c                  | 16 ++++++++--------
 net/core/rtnetlink.c            |  9 +++++----
 4 files changed, 16 insertions(+), 15 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 2daa066c6cdd..a141f406cb98 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1213,7 +1213,7 @@ static int bond_master_upper_dev_link(struct net_device *bond_dev,
 	if (err)
 		return err;
 	slave_dev->flags |= IFF_SLAVE;
-	rtmsg_ifinfo(RTM_NEWLINK, slave_dev, IFF_SLAVE);
+	rtmsg_ifinfo(RTM_NEWLINK, slave_dev, IFF_SLAVE, GFP_KERNEL);
 	return 0;
 }
 
@@ -1222,7 +1222,7 @@ static void bond_upper_dev_unlink(struct net_device *bond_dev,
 {
 	netdev_upper_dev_unlink(slave_dev, bond_dev);
 	slave_dev->flags &= ~IFF_SLAVE;
-	rtmsg_ifinfo(RTM_NEWLINK, slave_dev, IFF_SLAVE);
+	rtmsg_ifinfo(RTM_NEWLINK, slave_dev, IFF_SLAVE, GFP_KERNEL);
 }
 
 /* enslave device <slave> to bond device <master> */
diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index f28544b2f9af..939428ad25ac 100644
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -15,7 +15,7 @@ extern int rtnetlink_put_metrics(struct sk_buff *skb, u32 *metrics);
 extern int rtnl_put_cacheinfo(struct sk_buff *skb, struct dst_entry *dst,
 			      u32 id, long expires, u32 error);
 
-extern void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change);
+void rtmsg_ifinfo(int type, struct net_device *dev, unsigned change, gfp_t flags);
 
 /* RTNL is used as a global lock for all changes to network configuration  */
 extern void rtnl_lock(void);
diff --git a/net/core/dev.c b/net/core/dev.c
index bdffd654edc4..0054c8c75f50 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1203,7 +1203,7 @@ void netdev_state_change(struct net_device *dev)
 {
 	if (dev->flags & IFF_UP) {
 		call_netdevice_notifiers(NETDEV_CHANGE, dev);
-		rtmsg_ifinfo(RTM_NEWLINK, dev, 0);
+		rtmsg_ifinfo(RTM_NEWLINK, dev, 0, GFP_KERNEL);
 	}
 }
 EXPORT_SYMBOL(netdev_state_change);
@@ -1293,7 +1293,7 @@ int dev_open(struct net_device *dev)
 	if (ret < 0)
 		return ret;
 
-	rtmsg_ifinfo(RTM_NEWLINK, dev, IFF_UP|IFF_RUNNING);
+	rtmsg_ifinfo(RTM_NEWLINK, dev, IFF_UP|IFF_RUNNING, GFP_KERNEL);
 	call_netdevice_notifiers(NETDEV_UP, dev);
 
 	return ret;
@@ -1371,7 +1371,7 @@ static int dev_close_many(struct list_head *head)
 	__dev_close_many(head);
 
 	list_for_each_entry_safe(dev, tmp, head, close_list) {
-		rtmsg_ifinfo(RTM_NEWLINK, dev, IFF_UP|IFF_RUNNING);
+		rtmsg_ifinfo(RTM_NEWLINK, dev, IFF_UP|IFF_RUNNING, GFP_KERNEL);
 		call_netdevice_notifiers(NETDEV_DOWN, dev);
 		list_del_init(&dev->close_list);
 	}
@@ -5258,7 +5258,7 @@ void __dev_notify_flags(struct net_device *dev, unsigned int old_flags,
 	unsigned int changes = dev->flags ^ old_flags;
 
 	if (gchanges)
-		rtmsg_ifinfo(RTM_NEWLINK, dev, gchanges);
+		rtmsg_ifinfo(RTM_NEWLINK, dev, gchanges, GFP_ATOMIC);
 
 	if (changes & IFF_UP) {
 		if (dev->flags & IFF_UP)
@@ -5490,7 +5490,7 @@ static void rollback_registered_many(struct list_head *head)
 
 		if (!dev->rtnl_link_ops ||
 		    dev->rtnl_link_state == RTNL_LINK_INITIALIZED)
-			rtmsg_ifinfo(RTM_DELLINK, dev, ~0U);
+			rtmsg_ifinfo(RTM_DELLINK, dev, ~0U, GFP_KERNEL);
 
 		/*
 		 *	Flush the unicast and multicast chains
@@ -5889,7 +5889,7 @@ int register_netdevice(struct net_device *dev)
 	 */
 	if (!dev->rtnl_link_ops ||
 	    dev->rtnl_link_state == RTNL_LINK_INITIALIZED)
-		rtmsg_ifinfo(RTM_NEWLINK, dev, ~0U);
+		rtmsg_ifinfo(RTM_NEWLINK, dev, ~0U, GFP_KERNEL);
 
 out:
 	return ret;
@@ -6501,7 +6501,7 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
 	call_netdevice_notifiers(NETDEV_UNREGISTER, dev);
 	rcu_barrier();
 	call_netdevice_notifiers(NETDEV_UNREGISTER_FINAL, dev);
-	rtmsg_ifinfo(RTM_DELLINK, dev, ~0U);
+	rtmsg_ifinfo(RTM_DELLINK, dev, ~0U, GFP_KERNEL);
 
 	/*
 	 *	Flush the unicast and multicast chains
@@ -6540,7 +6540,7 @@ int dev_change_net_namespace(struct net_device *dev, struct net *net, const char
 	 *	Prevent userspace races by waiting until the network
 	 *	device is fully setup before sending notifications.
 	 */
-	rtmsg_ifinfo(RTM_NEWLINK, dev, ~0U);
+	rtmsg_ifinfo(RTM_NEWLINK, dev, ~0U, GFP_KERNEL);
 
 	synchronize_net();
 	err = 0;
diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index 4aedf03da052..cf67144d3e3c 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1984,14 +1984,15 @@ static int rtnl_dump_all(struct sk_buff *skb, struct netlink_callback *cb)
 	return skb->len;
 }
 
-void rtmsg_ifinfo(int type, struct net_device *dev, unsigned int change)
+void rtmsg_ifinfo(int type, struct net_device *dev, unsigned int change,
+		  gfp_t flags)
 {
 	struct net *net = dev_net(dev);
 	struct sk_buff *skb;
 	int err = -ENOBUFS;
 	size_t if_info_size;
 
-	skb = nlmsg_new((if_info_size = if_nlmsg_size(dev, 0)), GFP_KERNEL);
+	skb = nlmsg_new((if_info_size = if_nlmsg_size(dev, 0)), flags);
 	if (skb == NULL)
 		goto errout;
 
@@ -2002,7 +2003,7 @@ void rtmsg_ifinfo(int type, struct net_device *dev, unsigned int change)
 		kfree_skb(skb);
 		goto errout;
 	}
-	rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, GFP_KERNEL);
+	rtnl_notify(skb, net, 0, RTNLGRP_LINK, NULL, flags);
 	return;
 errout:
 	if (err < 0)
@@ -2716,7 +2717,7 @@ static int rtnetlink_event(struct notifier_block *this, unsigned long event, voi
 	case NETDEV_JOIN:
 		break;
 	default:
-		rtmsg_ifinfo(RTM_NEWLINK, dev, 0);
+		rtmsg_ifinfo(RTM_NEWLINK, dev, 0, GFP_KERNEL);
 		break;
 	}
 	return NOTIFY_DONE;
-- 
cgit 


From 0ed81393235fbf9d3379b55d2ceece1885ea3fae Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 23 Sep 2013 18:04:19 +0800
Subject: tps65090-charger: Drop devm_free_irq of devm_ allocated irq

The devm_request_irq function allocates irq that is released when a driver
detaches. Thus, there is no reason to explicitly call devm_free_irq in
probe or remove functions.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
---
 drivers/power/tps65090-charger.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/power/tps65090-charger.c b/drivers/power/tps65090-charger.c
index bdd7b9b2546a..14b6e79e1fc0 100644
--- a/drivers/power/tps65090-charger.c
+++ b/drivers/power/tps65090-charger.c
@@ -277,13 +277,13 @@ static int tps65090_charger_probe(struct platform_device *pdev)
 	if (ret) {
 		dev_err(cdata->dev, "Unable to register irq %d err %d\n", irq,
 			ret);
-		goto fail_free_irq;
+		goto fail_unregister_supply;
 	}
 
 	ret = tps65090_config_charger(cdata);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "charger config failed, err %d\n", ret);
-		goto fail_free_irq;
+		goto fail_unregister_supply;
 	}
 
 	/* Check for charger presence */
@@ -292,14 +292,14 @@ static int tps65090_charger_probe(struct platform_device *pdev)
 	if (ret < 0) {
 		dev_err(cdata->dev, "%s(): Error in reading reg 0x%x", __func__,
 			TPS65090_REG_CG_STATUS1);
-		goto fail_free_irq;
+		goto fail_unregister_supply;
 	}
 
 	if (status1 != 0) {
 		ret = tps65090_enable_charging(cdata);
 		if (ret < 0) {
 			dev_err(cdata->dev, "error enabling charger\n");
-			goto fail_free_irq;
+			goto fail_unregister_supply;
 		}
 		cdata->ac_online = 1;
 		power_supply_changed(&cdata->ac);
@@ -307,8 +307,6 @@ static int tps65090_charger_probe(struct platform_device *pdev)
 
 	return 0;
 
-fail_free_irq:
-	devm_free_irq(cdata->dev, irq, cdata);
 fail_unregister_supply:
 	power_supply_unregister(&cdata->ac);
 
@@ -319,7 +317,6 @@ static int tps65090_charger_remove(struct platform_device *pdev)
 {
 	struct tps65090_charger *cdata = platform_get_drvdata(pdev);
 
-	devm_free_irq(cdata->dev, cdata->irq, cdata);
 	power_supply_unregister(&cdata->ac);
 
 	return 0;
-- 
cgit 


From e47bcba4a189ab1ba23072ee2f457b1d72cd22fe Mon Sep 17 00:00:00 2001
From: Manish Badarkhe <badarkhe.manish@gmail.com>
Date: Sat, 28 Sep 2013 10:02:24 +0530
Subject: tps65090-charger: Use "IS_ENABLED(CONFIG_OF)" for DT code

Instead of "#if defined(CONFIG_OF)" use "IS_ENABLED(CONFIG_OF)" option
for DT code to avoid if-deffery in code.

Also, arranged header files in alphabetically.

Signed-off-by: Manish Badarkhe <badarkhe.manish@gmail.com>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
---
 drivers/power/tps65090-charger.c | 19 +++++--------------
 1 file changed, 5 insertions(+), 14 deletions(-)

diff --git a/drivers/power/tps65090-charger.c b/drivers/power/tps65090-charger.c
index 14b6e79e1fc0..8fc9d6df87f6 100644
--- a/drivers/power/tps65090-charger.c
+++ b/drivers/power/tps65090-charger.c
@@ -15,15 +15,17 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
+#include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
+#include <linux/of_device.h>
 #include <linux/platform_device.h>
 #include <linux/power_supply.h>
+#include <linux/slab.h>
+
 #include <linux/mfd/tps65090.h>
 
 #define TPS65090_REG_INTR_STS	0x00
@@ -185,10 +187,6 @@ static irqreturn_t tps65090_charger_isr(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-#if defined(CONFIG_OF)
-
-#include <linux/of_device.h>
-
 static struct tps65090_platform_data *
 		tps65090_parse_dt_charger_data(struct platform_device *pdev)
 {
@@ -210,13 +208,6 @@ static struct tps65090_platform_data *
 	return pdata;
 
 }
-#else
-static struct tps65090_platform_data *
-		tps65090_parse_dt_charger_data(struct platform_device *pdev)
-{
-	return NULL;
-}
-#endif
 
 static int tps65090_charger_probe(struct platform_device *pdev)
 {
@@ -228,7 +219,7 @@ static int tps65090_charger_probe(struct platform_device *pdev)
 
 	pdata = dev_get_platdata(pdev->dev.parent);
 
-	if (!pdata && pdev->dev.of_node)
+	if (IS_ENABLED(CONFIG_OF) && !pdata && pdev->dev.of_node)
 		pdata = tps65090_parse_dt_charger_data(pdev);
 
 	if (!pdata) {
-- 
cgit 


From 3ed5cd79b82e9a055e0df3275eeb471ea0f1e2d7 Mon Sep 17 00:00:00 2001
From: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Date: Wed, 16 Oct 2013 16:08:31 +0200
Subject: bq2415x_charger: Fix max battery regulation voltage
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

As per the datasheets, maximum battery regulation voltage is 4440mV.

The formula is (voltage - offset) / step, so the maximum value is:
(4440 - 3500) / 20 = 47

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Thanks-to: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
---
 drivers/power/bq2415x_charger.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/power/bq2415x_charger.c b/drivers/power/bq2415x_charger.c
index 0727f9256138..df893dd1447d 100644
--- a/drivers/power/bq2415x_charger.c
+++ b/drivers/power/bq2415x_charger.c
@@ -605,9 +605,13 @@ static int bq2415x_set_battery_regulation_voltage(struct bq2415x_device *bq,
 {
 	int val = (mV/10 - 350) / 2;
 
+	/*
+	 * According to datasheet, maximum battery regulation voltage is
+	 * 4440mV which is b101111 = 47.
+	 */
 	if (val < 0)
 		val = 0;
-	else if (val > 94) /* FIXME: Max is 94 or 122 ? Set max value ? */
+	else if (val > 47)
 		return -EINVAL;
 
 	return bq2415x_i2c_write_mask(bq, BQ2415X_REG_VOLTAGE, val,
-- 
cgit 


From 0e67d9903d71ce3c5889fa2e1788d4335794a0f6 Mon Sep 17 00:00:00 2001
From: Sebastian Siewior <sebastian@breakpoint.cc>
Date: Tue, 22 Oct 2013 20:36:25 +0200
Subject: net: wan: sbni: remove assembly crc32 code

There is also a C function doing the same thing. Unless the asm code is
110% faster we could stick to the C function.

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/wan/sbni.c | 89 --------------------------------------------------
 1 file changed, 89 deletions(-)

diff --git a/drivers/net/wan/sbni.c b/drivers/net/wan/sbni.c
index 5bbcb5e3ee0c..388ddf60a66d 100644
--- a/drivers/net/wan/sbni.c
+++ b/drivers/net/wan/sbni.c
@@ -148,10 +148,6 @@ static int  enslave( struct net_device *, struct net_device * );
 static int  emancipate( struct net_device * );
 #endif
 
-#ifdef __i386__
-#define ASM_CRC 1
-#endif
-
 static const char  version[] =
 	"Granch SBNI12 driver ver 5.0.1  Jun 22 2001  Denis I.Timofeev.\n";
 
@@ -1551,88 +1547,6 @@ __setup( "sbni=", sbni_setup );
 
 /* -------------------------------------------------------------------------- */
 
-#ifdef ASM_CRC
-
-static u32
-calc_crc32( u32  crc,  u8  *p,  u32  len )
-{
-	register u32  _crc;
-	_crc = crc;
-	
-	__asm__ __volatile__ (
-		"xorl	%%ebx, %%ebx\n"
-		"movl	%2, %%esi\n" 
-		"movl	%3, %%ecx\n" 
-		"movl	$crc32tab, %%edi\n"
-		"shrl	$2, %%ecx\n"
-		"jz	1f\n"
-
-		".align 4\n"
-	"0:\n"
-		"movb	%%al, %%bl\n"
-		"movl	(%%esi), %%edx\n"
-		"shrl	$8, %%eax\n"
-		"xorb	%%dl, %%bl\n"
-		"shrl	$8, %%edx\n"
-		"xorl	(%%edi,%%ebx,4), %%eax\n"
-
-		"movb	%%al, %%bl\n"
-		"shrl	$8, %%eax\n"
-		"xorb	%%dl, %%bl\n"
-		"shrl	$8, %%edx\n"
-		"xorl	(%%edi,%%ebx,4), %%eax\n"
-
-		"movb	%%al, %%bl\n"
-		"shrl	$8, %%eax\n"
-		"xorb	%%dl, %%bl\n"
-		"movb	%%dh, %%dl\n" 
-		"xorl	(%%edi,%%ebx,4), %%eax\n"
-
-		"movb	%%al, %%bl\n"
-		"shrl	$8, %%eax\n"
-		"xorb	%%dl, %%bl\n"
-		"addl	$4, %%esi\n"
-		"xorl	(%%edi,%%ebx,4), %%eax\n"
-
-		"decl	%%ecx\n"
-		"jnz	0b\n"
-
-	"1:\n"
-		"movl	%3, %%ecx\n"
-		"andl	$3, %%ecx\n"
-		"jz	2f\n"
-
-		"movb	%%al, %%bl\n"
-		"shrl	$8, %%eax\n"
-		"xorb	(%%esi), %%bl\n"
-		"xorl	(%%edi,%%ebx,4), %%eax\n"
-
-		"decl	%%ecx\n"
-		"jz	2f\n"
-
-		"movb	%%al, %%bl\n"
-		"shrl	$8, %%eax\n"
-		"xorb	1(%%esi), %%bl\n"
-		"xorl	(%%edi,%%ebx,4), %%eax\n"
-
-		"decl	%%ecx\n"
-		"jz	2f\n"
-
-		"movb	%%al, %%bl\n"
-		"shrl	$8, %%eax\n"
-		"xorb	2(%%esi), %%bl\n"
-		"xorl	(%%edi,%%ebx,4), %%eax\n"
-	"2:\n"
-		: "=a" (_crc)
-		: "0" (_crc), "g" (p), "g" (len)
-		: "bx", "cx", "dx", "si", "di"
-	);
-
-	return  _crc;
-}
-
-#else	/* ASM_CRC */
-
 static u32
 calc_crc32( u32  crc,  u8  *p,  u32  len )
 {
@@ -1642,9 +1556,6 @@ calc_crc32( u32  crc,  u8  *p,  u32  len )
 	return  crc;
 }
 
-#endif	/* ASM_CRC */
-
-
 static u32  crc32tab[] __attribute__ ((aligned(8))) = {
 	0xD202EF8D,  0xA505DF1B,  0x3C0C8EA1,  0x4B0BBE37,
 	0xD56F2B94,  0xA2681B02,  0x3B614AB8,  0x4C667A2E,
-- 
cgit 


From 45e526e80e6fdc796d3bc05716d5c930a427df4d Mon Sep 17 00:00:00 2001
From: Nikolay Aleksandrov <nikolay@redhat.com>
Date: Wed, 23 Oct 2013 15:04:49 +0200
Subject: netconsole: fix NULL pointer dereference

We need to disable the netconsole (enabled = 0) before setting nt->np.dev
to NULL because otherwise we might still have users after the
netpoll_cleanup() since nt->enabled is set afterwards and we can
have a message which will result in a NULL pointer dereference.
It is very easy to hit dereferences all over the netpoll_send_udp function
by running the following two loops in parallel:
while [ 1 ]; do echo 1 > enabled; echo 0 > enabled; done;
while [ 1 ]; do echo 00:11:22:33:44:55 > remote_mac; done;
(the second loop is to generate messages, it can be done by anything)

We're safe to set nt->np.dev = NULL and nt->enabled = 0 with the spinlock
since it's required in the write_msg() function.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Reviewed-by: Veacelsav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/netconsole.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
index adeee615dd19..1505dcb950fa 100644
--- a/drivers/net/netconsole.c
+++ b/drivers/net/netconsole.c
@@ -310,6 +310,7 @@ static ssize_t store_enabled(struct netconsole_target *nt,
 			     const char *buf,
 			     size_t count)
 {
+	unsigned long flags;
 	int enabled;
 	int err;
 
@@ -342,6 +343,13 @@ static ssize_t store_enabled(struct netconsole_target *nt,
 		printk(KERN_INFO "netconsole: network logging started\n");
 
 	} else {	/* 0 */
+		/* We need to disable the netconsole before cleaning it up
+		 * otherwise we might end up in write_msg() with
+		 * nt->np.dev == NULL and nt->enabled == 1
+		 */
+		spin_lock_irqsave(&target_list_lock, flags);
+		nt->enabled = 0;
+		spin_unlock_irqrestore(&target_list_lock, flags);
 		netpoll_cleanup(&nt->np);
 	}
 
-- 
cgit 


From c7c6effdeffcafd792b9f880ad52e48689eea4ad Mon Sep 17 00:00:00 2001
From: Nikolay Aleksandrov <nikolay@redhat.com>
Date: Thu, 24 Oct 2013 12:09:24 +0200
Subject: netconsole: fix multiple race conditions

In every netconsole option that can be set through configfs there's a
race when checking for nt->enabled since it can be modified at the same
time. Probably the most damage can be done by store_enabled when racing
with another instance of itself. Fix all the races with one stone by
moving the mutex lock around the ->store call for all options.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/netconsole.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
index 1505dcb950fa..c9a15925a1f7 100644
--- a/drivers/net/netconsole.c
+++ b/drivers/net/netconsole.c
@@ -325,9 +325,7 @@ static ssize_t store_enabled(struct netconsole_target *nt,
 		return -EINVAL;
 	}
 
-	mutex_lock(&nt->mutex);
 	if (enabled) {	/* 1 */
-
 		/*
 		 * Skip netpoll_parse_options() -- all the attributes are
 		 * already configured via configfs. Just print them out.
@@ -335,13 +333,10 @@ static ssize_t store_enabled(struct netconsole_target *nt,
 		netpoll_print_options(&nt->np);
 
 		err = netpoll_setup(&nt->np);
-		if (err) {
-			mutex_unlock(&nt->mutex);
+		if (err)
 			return err;
-		}
 
 		printk(KERN_INFO "netconsole: network logging started\n");
-
 	} else {	/* 0 */
 		/* We need to disable the netconsole before cleaning it up
 		 * otherwise we might end up in write_msg() with
@@ -354,7 +349,6 @@ static ssize_t store_enabled(struct netconsole_target *nt,
 	}
 
 	nt->enabled = enabled;
-	mutex_unlock(&nt->mutex);
 
 	return strnlen(buf, count);
 }
@@ -571,8 +565,10 @@ static ssize_t netconsole_target_attr_store(struct config_item *item,
 	struct netconsole_target_attr *na =
 		container_of(attr, struct netconsole_target_attr, attr);
 
+	mutex_lock(&nt->mutex);
 	if (na->store)
 		ret = na->store(nt, buf, count);
+	mutex_unlock(&nt->mutex);
 
 	return ret;
 }
-- 
cgit 


From 8fb479a47c869820966e7298f38038aa334d889c Mon Sep 17 00:00:00 2001
From: Antonio Quartulli <antonio@meshcoding.com>
Date: Wed, 23 Oct 2013 23:36:30 +0200
Subject: netpoll: fix rx_hook() interface by passing the skb

Right now skb->data is passed to rx_hook() even if the skb
has not been linearised and without giving rx_hook() a way
to linearise it.

Change the rx_hook() interface and make it accept the skb
and the offset to the UDP payload as arguments. rx_hook() is
also renamed to rx_skb_hook() to ensure that out of the tree
users notice the API change.

In this way any rx_skb_hook() implementation can perform all
the needed operations to properly (and safely) access the
skb data.

Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netpoll.h |  5 +++--
 net/core/netpoll.c      | 31 ++++++++++++++++++-------------
 2 files changed, 21 insertions(+), 15 deletions(-)

diff --git a/include/linux/netpoll.h b/include/linux/netpoll.h
index f3c7c24bec1c..fbfdb9d8d3a7 100644
--- a/include/linux/netpoll.h
+++ b/include/linux/netpoll.h
@@ -24,7 +24,8 @@ struct netpoll {
 	struct net_device *dev;
 	char dev_name[IFNAMSIZ];
 	const char *name;
-	void (*rx_hook)(struct netpoll *, int, char *, int);
+	void (*rx_skb_hook)(struct netpoll *np, int source, struct sk_buff *skb,
+			    int offset, int len);
 
 	union inet_addr local_ip, remote_ip;
 	bool ipv6;
@@ -41,7 +42,7 @@ struct netpoll_info {
 	unsigned long rx_flags;
 	spinlock_t rx_lock;
 	struct semaphore dev_lock;
-	struct list_head rx_np; /* netpolls that registered an rx_hook */
+	struct list_head rx_np; /* netpolls that registered an rx_skb_hook */
 
 	struct sk_buff_head neigh_tx; /* list of neigh requests to reply to */
 	struct sk_buff_head txq;
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index fc75c9e461b8..8f971990677c 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -636,8 +636,9 @@ static void netpoll_neigh_reply(struct sk_buff *skb, struct netpoll_info *npinfo
 
 			netpoll_send_skb(np, send_skb);
 
-			/* If there are several rx_hooks for the same address,
-			   we're fine by sending a single reply */
+			/* If there are several rx_skb_hooks for the same
+			 * address we're fine by sending a single reply
+			 */
 			break;
 		}
 		spin_unlock_irqrestore(&npinfo->rx_lock, flags);
@@ -719,8 +720,9 @@ static void netpoll_neigh_reply(struct sk_buff *skb, struct netpoll_info *npinfo
 
 			netpoll_send_skb(np, send_skb);
 
-			/* If there are several rx_hooks for the same address,
-			   we're fine by sending a single reply */
+			/* If there are several rx_skb_hooks for the same
+			 * address, we're fine by sending a single reply
+			 */
 			break;
 		}
 		spin_unlock_irqrestore(&npinfo->rx_lock, flags);
@@ -756,11 +758,12 @@ static bool pkt_is_ns(struct sk_buff *skb)
 
 int __netpoll_rx(struct sk_buff *skb, struct netpoll_info *npinfo)
 {
-	int proto, len, ulen;
-	int hits = 0;
+	int proto, len, ulen, data_len;
+	int hits = 0, offset;
 	const struct iphdr *iph;
 	struct udphdr *uh;
 	struct netpoll *np, *tmp;
+	uint16_t source;
 
 	if (list_empty(&npinfo->rx_np))
 		goto out;
@@ -820,7 +823,10 @@ int __netpoll_rx(struct sk_buff *skb, struct netpoll_info *npinfo)
 
 		len -= iph->ihl*4;
 		uh = (struct udphdr *)(((char *)iph) + iph->ihl*4);
+		offset = (unsigned char *)(uh + 1) - skb->data;
 		ulen = ntohs(uh->len);
+		data_len = skb->len - offset;
+		source = ntohs(uh->source);
 
 		if (ulen != len)
 			goto out;
@@ -834,9 +840,7 @@ int __netpoll_rx(struct sk_buff *skb, struct netpoll_info *npinfo)
 			if (np->local_port && np->local_port != ntohs(uh->dest))
 				continue;
 
-			np->rx_hook(np, ntohs(uh->source),
-				       (char *)(uh+1),
-				       ulen - sizeof(struct udphdr));
+			np->rx_skb_hook(np, source, skb, offset, data_len);
 			hits++;
 		}
 	} else {
@@ -859,7 +863,10 @@ int __netpoll_rx(struct sk_buff *skb, struct netpoll_info *npinfo)
 		if (!pskb_may_pull(skb, sizeof(struct udphdr)))
 			goto out;
 		uh = udp_hdr(skb);
+		offset = (unsigned char *)(uh + 1) - skb->data;
 		ulen = ntohs(uh->len);
+		data_len = skb->len - offset;
+		source = ntohs(uh->source);
 		if (ulen != skb->len)
 			goto out;
 		if (udp6_csum_init(skb, uh, IPPROTO_UDP))
@@ -872,9 +879,7 @@ int __netpoll_rx(struct sk_buff *skb, struct netpoll_info *npinfo)
 			if (np->local_port && np->local_port != ntohs(uh->dest))
 				continue;
 
-			np->rx_hook(np, ntohs(uh->source),
-				       (char *)(uh+1),
-				       ulen - sizeof(struct udphdr));
+			np->rx_skb_hook(np, source, skb, offset, data_len);
 			hits++;
 		}
 #endif
@@ -1062,7 +1067,7 @@ int __netpoll_setup(struct netpoll *np, struct net_device *ndev, gfp_t gfp)
 
 	npinfo->netpoll = np;
 
-	if (np->rx_hook) {
+	if (np->rx_skb_hook) {
 		spin_lock_irqsave(&npinfo->rx_lock, flags);
 		npinfo->rx_flags |= NETPOLL_RX_ENABLED;
 		list_add_tail(&np->rx, &npinfo->rx_np);
-- 
cgit 


From 01ba16d6ec85a1ec4669c75513a76b61ec53ee50 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Thu, 24 Oct 2013 10:14:27 +0200
Subject: ipv6: reset dst.expires value when clearing expire flag

On receiving a packet too big icmp error we update the expire value by
calling rt6_update_expires. This function uses dst_set_expires which is
implemented that it can only reduce the expiration value of the dst entry.

If we insert new routing non-expiry information into the ipv6 fib where
we already have a matching rt6_info we only clear the RTF_EXPIRES flag
in rt6i_flags and leave the dst.expires value as is.

When new mtu information arrives for that cached dst_entry we again
call dst_set_expires. This time it won't update the dst.expire value
because we left the dst.expire value intact from the last update. So
dst_set_expires won't touch dst.expires.

Fix this by resetting dst.expires when clearing the RTF_EXPIRE flag.
dst_set_expires checks for a zero expiration and updates the
dst.expires.

In the past this (not updating dst.expires) was necessary because
dst.expire was placed in a union with the dst_entry *from reference
and rt6_clean_expires did assign NULL to it. This split happend in
ecd9883724b78cc72ed92c98bcb1a46c764fff21 ("ipv6: fix race condition
regarding dst->expires and dst->from").

Reported-by: Steinar H. Gunderson <sgunderson@bigfoot.com>
Reported-by: Valentijn Sessink <valentyn@blub.net>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Acked-by: Eric Dumazet <edumazet@google.com>
Tested-by: Valentijn Sessink <valentyn@blub.net>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/ip6_fib.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h
index 48ec25a7fcb6..5e661a979694 100644
--- a/include/net/ip6_fib.h
+++ b/include/net/ip6_fib.h
@@ -165,6 +165,7 @@ static inline struct inet6_dev *ip6_dst_idev(struct dst_entry *dst)
 static inline void rt6_clean_expires(struct rt6_info *rt)
 {
 	rt->rt6i_flags &= ~RTF_EXPIRES;
+	rt->dst.expires = 0;
 }
 
 static inline void rt6_set_expires(struct rt6_info *rt, unsigned long expires)
-- 
cgit 


From e3bc10bd95d7fcc3f2ac690c6ff22833ea6781d6 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Thu, 24 Oct 2013 07:48:24 +0200
Subject: ipv6: ip6_dst_check needs to check for expired dst_entries

On receiving a packet too big icmp error we check if our current cached
dst_entry in the socket is still valid. This validation check did not
care about the expiration of the (cached) route.

The error path I traced down:
The socket receives a packet too big mtu notification. It still has a
valid dst_entry and thus issues the ip6_rt_pmtu_update on this dst_entry,
setting RTF_EXPIRE and updates the dst.expiration value (which could
fail because of not up-to-date expiration values, see previous patch).

In some seldom cases we race with a) the ip6_fib gc or b) another routing
lookup which would result in a recreation of the cached rt6_info from its
parent non-cached rt6_info. While copying the rt6_info we reinitialize the
metrics store by copying it over from the parent thus invalidating the
just installed pmtu update (both dsts use the same key to the inetpeer
storage). The dst_entry with the just invalidated metrics data would
just get its RTF_EXPIRES flag cleared and would continue to stay valid
for the socket.

We should have not issued the pmtu update on the already expired dst_entry
in the first placed. By checking the expiration on the dst entry and
doing a relookup in case it is out of date we close the race because
we would install a new rt6_info into the fib before we issue the pmtu
update, thus closing this race.

Not reliably updating the dst.expire value was fixed by the patch "ipv6:
reset dst.expires value when clearing expire flag".

Reported-by: Steinar H. Gunderson <sgunderson@bigfoot.com>
Reported-by: Valentijn Sessink <valentyn@blub.net>
Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Tested-by: Valentijn Sessink <valentyn@blub.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/route.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index f54e3a101098..04e17b3309fb 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1087,10 +1087,13 @@ static struct dst_entry *ip6_dst_check(struct dst_entry *dst, u32 cookie)
 	if (rt->rt6i_genid != rt_genid_ipv6(dev_net(rt->dst.dev)))
 		return NULL;
 
-	if (rt->rt6i_node && (rt->rt6i_node->fn_sernum == cookie))
-		return dst;
+	if (!rt->rt6i_node || (rt->rt6i_node->fn_sernum != cookie))
+		return NULL;
 
-	return NULL;
+	if (rt6_check_expired(rt))
+		return NULL;
+
+	return dst;
 }
 
 static struct dst_entry *ip6_negative_advice(struct dst_entry *dst)
-- 
cgit 


From 4c8e84b22aa1bfee40b047d7810ba08615235c05 Mon Sep 17 00:00:00 2001
From: Freddy Xin <freddy@asix.com.tw>
Date: Thu, 24 Oct 2013 14:58:25 +0800
Subject: ax88179_178a: Remove AX_MEDIUM_ALWAYS_ONE bit in
 AX_MEDIUM_STATUS_MODE register to avoid TX throttling

Remove AX_MEDIUM_ALWAYS_ONE in AX_MEDIUM_STATUS_MODE register.
Setting this bit may cause TX throttling in Half-Duplex mode.

Signed-off-by: Freddy Xin <freddy@asix.com.tw>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/ax88179_178a.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
index 846cc19c04f2..8e8d0fcd4979 100644
--- a/drivers/net/usb/ax88179_178a.c
+++ b/drivers/net/usb/ax88179_178a.c
@@ -78,7 +78,6 @@
 #define AX_MEDIUM_STATUS_MODE			0x22
 	#define AX_MEDIUM_GIGAMODE	0x01
 	#define AX_MEDIUM_FULL_DUPLEX	0x02
-	#define AX_MEDIUM_ALWAYS_ONE	0x04
 	#define AX_MEDIUM_EN_125MHZ	0x08
 	#define AX_MEDIUM_RXFLOW_CTRLEN	0x10
 	#define AX_MEDIUM_TXFLOW_CTRLEN	0x20
@@ -1065,8 +1064,8 @@ static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
 
 	/* Configure default medium type => giga */
 	*tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
-		 AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_ALWAYS_ONE |
-		 AX_MEDIUM_FULL_DUPLEX | AX_MEDIUM_GIGAMODE;
+		 AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX |
+		 AX_MEDIUM_GIGAMODE;
 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
 			  2, 2, tmp16);
 
@@ -1225,7 +1224,7 @@ static int ax88179_link_reset(struct usbnet *dev)
 	}
 
 	mode = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
-	       AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_ALWAYS_ONE;
+	       AX_MEDIUM_RXFLOW_CTRLEN;
 
 	ax88179_read_cmd(dev, AX_ACCESS_MAC, PHYSICAL_LINK_STATUS,
 			 1, 1, &link_sts);
@@ -1339,8 +1338,8 @@ static int ax88179_reset(struct usbnet *dev)
 
 	/* Configure default medium type => giga */
 	*tmp16 = AX_MEDIUM_RECEIVE_EN | AX_MEDIUM_TXFLOW_CTRLEN |
-		 AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_ALWAYS_ONE |
-		 AX_MEDIUM_FULL_DUPLEX | AX_MEDIUM_GIGAMODE;
+		 AX_MEDIUM_RXFLOW_CTRLEN | AX_MEDIUM_FULL_DUPLEX |
+		 AX_MEDIUM_GIGAMODE;
 	ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
 			  2, 2, tmp16);
 
-- 
cgit 


From 883c10a9dd8099e7519cdc43b75ac4066a6ae98d Mon Sep 17 00:00:00 2001
From: Jonghwa Lee <jonghwa3.lee@samsung.com>
Date: Fri, 25 Oct 2013 11:47:31 +0900
Subject: charger-manager : Replace kzalloc to devm_kzalloc and remove
 uneccessary code

Use devm function for dynamic memory allocation.

Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
---
 drivers/power/charger-manager.c | 85 +++++++++++++----------------------------
 1 file changed, 27 insertions(+), 58 deletions(-)

diff --git a/drivers/power/charger-manager.c b/drivers/power/charger-manager.c
index e30e847600bb..7287c0efd6bf 100644
--- a/drivers/power/charger-manager.c
+++ b/drivers/power/charger-manager.c
@@ -1378,7 +1378,8 @@ static int charger_manager_register_sysfs(struct charger_manager *cm)
 		charger = &desc->charger_regulators[i];
 
 		snprintf(buf, 10, "charger.%d", i);
-		str = kzalloc(sizeof(char) * (strlen(buf) + 1), GFP_KERNEL);
+		str = devm_kzalloc(cm->dev,
+				sizeof(char) * (strlen(buf) + 1), GFP_KERNEL);
 		if (!str) {
 			ret = -ENOMEM;
 			goto err;
@@ -1452,30 +1453,23 @@ static int charger_manager_probe(struct platform_device *pdev)
 			rtc_dev = NULL;
 			dev_err(&pdev->dev, "Cannot get RTC %s\n",
 				g_desc->rtc_name);
-			ret = -ENODEV;
-			goto err_alloc;
+			return -ENODEV;
 		}
 	}
 
 	if (!desc) {
 		dev_err(&pdev->dev, "No platform data (desc) found\n");
-		ret = -ENODEV;
-		goto err_alloc;
+		return -ENODEV;
 	}
 
-	cm = kzalloc(sizeof(struct charger_manager), GFP_KERNEL);
-	if (!cm) {
-		ret = -ENOMEM;
-		goto err_alloc;
-	}
+	cm = devm_kzalloc(&pdev->dev,
+			sizeof(struct charger_manager),	GFP_KERNEL);
+	if (!cm)
+		return -ENOMEM;
 
 	/* Basic Values. Unspecified are Null or 0 */
 	cm->dev = &pdev->dev;
-	cm->desc = kmemdup(desc, sizeof(struct charger_desc), GFP_KERNEL);
-	if (!cm->desc) {
-		ret = -ENOMEM;
-		goto err_alloc_desc;
-	}
+	cm->desc = desc;
 	cm->last_temp_mC = INT_MIN; /* denotes "unmeasured, yet" */
 
 	/*
@@ -1498,27 +1492,23 @@ static int charger_manager_probe(struct platform_device *pdev)
 	}
 
 	if (!desc->charger_regulators || desc->num_charger_regulators < 1) {
-		ret = -EINVAL;
 		dev_err(&pdev->dev, "charger_regulators undefined\n");
-		goto err_no_charger;
+		return -EINVAL;
 	}
 
 	if (!desc->psy_charger_stat || !desc->psy_charger_stat[0]) {
 		dev_err(&pdev->dev, "No power supply defined\n");
-		ret = -EINVAL;
-		goto err_no_charger_stat;
+		return -EINVAL;
 	}
 
 	/* Counting index only */
 	while (desc->psy_charger_stat[i])
 		i++;
 
-	cm->charger_stat = kzalloc(sizeof(struct power_supply *) * (i + 1),
-				   GFP_KERNEL);
-	if (!cm->charger_stat) {
-		ret = -ENOMEM;
-		goto err_no_charger_stat;
-	}
+	cm->charger_stat = devm_kzalloc(&pdev->dev,
+				sizeof(struct power_supply *) * i, GFP_KERNEL);
+	if (!cm->charger_stat)
+		return -ENOMEM;
 
 	for (i = 0; desc->psy_charger_stat[i]; i++) {
 		cm->charger_stat[i] = power_supply_get_by_name(
@@ -1526,8 +1516,7 @@ static int charger_manager_probe(struct platform_device *pdev)
 		if (!cm->charger_stat[i]) {
 			dev_err(&pdev->dev, "Cannot find power supply \"%s\"\n",
 				desc->psy_charger_stat[i]);
-			ret = -ENODEV;
-			goto err_chg_stat;
+			return -ENODEV;
 		}
 	}
 
@@ -1535,21 +1524,18 @@ static int charger_manager_probe(struct platform_device *pdev)
 	if (!cm->fuel_gauge) {
 		dev_err(&pdev->dev, "Cannot find power supply \"%s\"\n",
 			desc->psy_fuel_gauge);
-		ret = -ENODEV;
-		goto err_chg_stat;
+		return -ENODEV;
 	}
 
 	if (desc->polling_interval_ms == 0 ||
 	    msecs_to_jiffies(desc->polling_interval_ms) <= CM_JIFFIES_SMALL) {
 		dev_err(&pdev->dev, "polling_interval_ms is too small\n");
-		ret = -EINVAL;
-		goto err_chg_stat;
+		return -EINVAL;
 	}
 
 	if (!desc->temperature_out_of_range) {
 		dev_err(&pdev->dev, "there is no temperature_out_of_range\n");
-		ret = -EINVAL;
-		goto err_chg_stat;
+		return -EINVAL;
 	}
 
 	if (!desc->charging_max_duration_ms ||
@@ -1570,14 +1556,13 @@ static int charger_manager_probe(struct platform_device *pdev)
 	cm->charger_psy.name = cm->psy_name_buf;
 
 	/* Allocate for psy properties because they may vary */
-	cm->charger_psy.properties = kzalloc(sizeof(enum power_supply_property)
+	cm->charger_psy.properties = devm_kzalloc(&pdev->dev,
+				sizeof(enum power_supply_property)
 				* (ARRAY_SIZE(default_charger_props) +
-				NUM_CHARGER_PSY_OPTIONAL),
-				GFP_KERNEL);
-	if (!cm->charger_psy.properties) {
-		ret = -ENOMEM;
-		goto err_chg_stat;
-	}
+				NUM_CHARGER_PSY_OPTIONAL), GFP_KERNEL);
+	if (!cm->charger_psy.properties)
+		return -ENOMEM;
+
 	memcpy(cm->charger_psy.properties, default_charger_props,
 		sizeof(enum power_supply_property) *
 		ARRAY_SIZE(default_charger_props));
@@ -1614,7 +1599,7 @@ static int charger_manager_probe(struct platform_device *pdev)
 	if (ret) {
 		dev_err(&pdev->dev, "Cannot register charger-manager with name \"%s\"\n",
 			cm->charger_psy.name);
-		goto err_register;
+		return ret;
 	}
 
 	/* Register extcon device for charger cable */
@@ -1655,8 +1640,6 @@ err_reg_sysfs:
 		charger = &desc->charger_regulators[i];
 		sysfs_remove_group(&cm->charger_psy.dev->kobj,
 				&charger->attr_g);
-
-		kfree(charger->attr_g.name);
 	}
 err_reg_extcon:
 	for (i = 0; i < desc->num_charger_regulators; i++) {
@@ -1674,16 +1657,7 @@ err_reg_extcon:
 	}
 
 	power_supply_unregister(&cm->charger_psy);
-err_register:
-	kfree(cm->charger_psy.properties);
-err_chg_stat:
-	kfree(cm->charger_stat);
-err_no_charger_stat:
-err_no_charger:
-	kfree(cm->desc);
-err_alloc_desc:
-	kfree(cm);
-err_alloc:
+
 	return ret;
 }
 
@@ -1718,11 +1692,6 @@ static int charger_manager_remove(struct platform_device *pdev)
 
 	try_charger_enable(cm, false);
 
-	kfree(cm->charger_psy.properties);
-	kfree(cm->charger_stat);
-	kfree(cm->desc);
-	kfree(cm);
-
 	return 0;
 }
 
-- 
cgit 


From 3d23c7f457ed86f27425cb3f229b76720855a26d Mon Sep 17 00:00:00 2001
From: Manish Badarkhe <badarkhe.manish@gmail.com>
Date: Mon, 14 Oct 2013 10:56:51 +0530
Subject: max17042_battery: Use SIMPLE_DEV_PM_OPS

Use the SIMPLE_DEV_PM_OPS macro to declare the driver's pm_ops.

Signed-off-by: Manish Badarkhe <badarkhe.manish@gmail.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
---
 drivers/power/max17042_battery.c | 16 +++++-----------
 1 file changed, 5 insertions(+), 11 deletions(-)

diff --git a/drivers/power/max17042_battery.c b/drivers/power/max17042_battery.c
index d664ef58afa7..bd72b0f7f729 100644
--- a/drivers/power/max17042_battery.c
+++ b/drivers/power/max17042_battery.c
@@ -786,7 +786,7 @@ static int max17042_remove(struct i2c_client *client)
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int max17042_suspend(struct device *dev)
 {
 	struct max17042_chip *chip = dev_get_drvdata(dev);
@@ -816,17 +816,11 @@ static int max17042_resume(struct device *dev)
 
 	return 0;
 }
-
-static const struct dev_pm_ops max17042_pm_ops = {
-	.suspend	= max17042_suspend,
-	.resume		= max17042_resume,
-};
-
-#define MAX17042_PM_OPS (&max17042_pm_ops)
-#else
-#define MAX17042_PM_OPS NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(max17042_pm_ops, max17042_suspend,
+			max17042_resume);
+
 #ifdef CONFIG_OF
 static const struct of_device_id max17042_dt_match[] = {
 	{ .compatible = "maxim,max17042" },
@@ -849,7 +843,7 @@ static struct i2c_driver max17042_i2c_driver = {
 	.driver	= {
 		.name	= "max17042",
 		.of_match_table = of_match_ptr(max17042_dt_match),
-		.pm	= MAX17042_PM_OPS,
+		.pm	= &max17042_pm_ops,
 	},
 	.probe		= max17042_probe,
 	.remove		= max17042_remove,
-- 
cgit 


From 39e7213edc4f31b0650dcc5630e175a6bd278b9b Mon Sep 17 00:00:00 2001
From: Jonghwa Lee <jonghwa3.lee@samsung.com>
Date: Fri, 25 Oct 2013 13:55:02 +0900
Subject: max17042_battery: Support regmap to access device's registers

This patch makes max17042 fuelguage driver uses regmap API to access its
device's registers.

Signed-off-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
---
 drivers/power/max17042_battery.c | 357 +++++++++++++++++++--------------------
 1 file changed, 174 insertions(+), 183 deletions(-)

diff --git a/drivers/power/max17042_battery.c b/drivers/power/max17042_battery.c
index bd72b0f7f729..e0b22f9b6fdd 100644
--- a/drivers/power/max17042_battery.c
+++ b/drivers/power/max17042_battery.c
@@ -33,6 +33,7 @@
 #include <linux/power_supply.h>
 #include <linux/power/max17042_battery.h>
 #include <linux/of.h>
+#include <linux/regmap.h>
 
 /* Status register bits */
 #define STATUS_POR_BIT         (1 << 1)
@@ -67,6 +68,7 @@
 
 struct max17042_chip {
 	struct i2c_client *client;
+	struct regmap *regmap;
 	struct power_supply battery;
 	enum max170xx_chip_type chip_type;
 	struct max17042_platform_data *pdata;
@@ -74,35 +76,6 @@ struct max17042_chip {
 	int    init_complete;
 };
 
-static int max17042_write_reg(struct i2c_client *client, u8 reg, u16 value)
-{
-	int ret = i2c_smbus_write_word_data(client, reg, value);
-
-	if (ret < 0)
-		dev_err(&client->dev, "%s: err %d\n", __func__, ret);
-
-	return ret;
-}
-
-static int max17042_read_reg(struct i2c_client *client, u8 reg)
-{
-	int ret = i2c_smbus_read_word_data(client, reg);
-
-	if (ret < 0)
-		dev_err(&client->dev, "%s: err %d\n", __func__, ret);
-
-	return ret;
-}
-
-static void max17042_set_reg(struct i2c_client *client,
-			     struct max17042_reg_data *data, int size)
-{
-	int i;
-
-	for (i = 0; i < size; i++)
-		max17042_write_reg(client, data[i].addr, data[i].data);
-}
-
 static enum power_supply_property max17042_battery_props[] = {
 	POWER_SUPPLY_PROP_PRESENT,
 	POWER_SUPPLY_PROP_CYCLE_COUNT,
@@ -125,96 +98,98 @@ static int max17042_get_property(struct power_supply *psy,
 {
 	struct max17042_chip *chip = container_of(psy,
 				struct max17042_chip, battery);
+	struct regmap *map = chip->regmap;
 	int ret;
+	u32 data;
 
 	if (!chip->init_complete)
 		return -EAGAIN;
 
 	switch (psp) {
 	case POWER_SUPPLY_PROP_PRESENT:
-		ret = max17042_read_reg(chip->client, MAX17042_STATUS);
+		ret = regmap_read(map, MAX17042_STATUS, &data);
 		if (ret < 0)
 			return ret;
 
-		if (ret & MAX17042_STATUS_BattAbsent)
+		if (data & MAX17042_STATUS_BattAbsent)
 			val->intval = 0;
 		else
 			val->intval = 1;
 		break;
 	case POWER_SUPPLY_PROP_CYCLE_COUNT:
-		ret = max17042_read_reg(chip->client, MAX17042_Cycles);
+		ret = regmap_read(map, MAX17042_Cycles, &data);
 		if (ret < 0)
 			return ret;
 
-		val->intval = ret;
+		val->intval = data;
 		break;
 	case POWER_SUPPLY_PROP_VOLTAGE_MAX:
-		ret = max17042_read_reg(chip->client, MAX17042_MinMaxVolt);
+		ret = regmap_read(map, MAX17042_MinMaxVolt, &data);
 		if (ret < 0)
 			return ret;
 
-		val->intval = ret >> 8;
+		val->intval = data >> 8;
 		val->intval *= 20000; /* Units of LSB = 20mV */
 		break;
 	case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
 		if (chip->chip_type == MAX17042)
-			ret = max17042_read_reg(chip->client, MAX17042_V_empty);
+			ret = regmap_read(map, MAX17042_V_empty, &data);
 		else
-			ret = max17042_read_reg(chip->client, MAX17047_V_empty);
+			ret = regmap_read(map, MAX17047_V_empty, &data);
 		if (ret < 0)
 			return ret;
 
-		val->intval = ret >> 7;
+		val->intval = data >> 7;
 		val->intval *= 10000; /* Units of LSB = 10mV */
 		break;
 	case POWER_SUPPLY_PROP_VOLTAGE_NOW:
-		ret = max17042_read_reg(chip->client, MAX17042_VCELL);
+		ret = regmap_read(map, MAX17042_VCELL, &data);
 		if (ret < 0)
 			return ret;
 
-		val->intval = ret * 625 / 8;
+		val->intval = data * 625 / 8;
 		break;
 	case POWER_SUPPLY_PROP_VOLTAGE_AVG:
-		ret = max17042_read_reg(chip->client, MAX17042_AvgVCELL);
+		ret = regmap_read(map, MAX17042_AvgVCELL, &data);
 		if (ret < 0)
 			return ret;
 
-		val->intval = ret * 625 / 8;
+		val->intval = data * 625 / 8;
 		break;
 	case POWER_SUPPLY_PROP_VOLTAGE_OCV:
-		ret = max17042_read_reg(chip->client, MAX17042_OCVInternal);
+		ret = regmap_read(map, MAX17042_OCVInternal, &data);
 		if (ret < 0)
 			return ret;
 
-		val->intval = ret * 625 / 8;
+		val->intval = data * 625 / 8;
 		break;
 	case POWER_SUPPLY_PROP_CAPACITY:
-		ret = max17042_read_reg(chip->client, MAX17042_RepSOC);
+		ret = regmap_read(map, MAX17042_RepSOC, &data);
 		if (ret < 0)
 			return ret;
 
-		val->intval = ret >> 8;
+		val->intval = data >> 8;
 		break;
 	case POWER_SUPPLY_PROP_CHARGE_FULL:
-		ret = max17042_read_reg(chip->client, MAX17042_FullCAP);
+		ret = regmap_read(map, MAX17042_FullCAP, &data);
 		if (ret < 0)
 			return ret;
 
-		val->intval = ret * 1000 / 2;
+		val->intval = data * 1000 / 2;
 		break;
 	case POWER_SUPPLY_PROP_CHARGE_COUNTER:
-		ret = max17042_read_reg(chip->client, MAX17042_QH);
+		ret = regmap_read(map, MAX17042_QH, &data);
 		if (ret < 0)
 			return ret;
 
-		val->intval = ret * 1000 / 2;
+		val->intval = data * 1000 / 2;
 		break;
 	case POWER_SUPPLY_PROP_TEMP:
-		ret = max17042_read_reg(chip->client, MAX17042_TEMP);
+		ret = regmap_read(map, MAX17042_TEMP, &data);
 		if (ret < 0)
 			return ret;
 
-		val->intval = ret;
+		val->intval = data;
 		/* The value is signed. */
 		if (val->intval & 0x8000) {
 			val->intval = (0x7fff & ~val->intval) + 1;
@@ -226,11 +201,11 @@ static int max17042_get_property(struct power_supply *psy,
 		break;
 	case POWER_SUPPLY_PROP_CURRENT_NOW:
 		if (chip->pdata->enable_current_sense) {
-			ret = max17042_read_reg(chip->client, MAX17042_Current);
+			ret = regmap_read(map, MAX17042_Current, &data);
 			if (ret < 0)
 				return ret;
 
-			val->intval = ret;
+			val->intval = data;
 			if (val->intval & 0x8000) {
 				/* Negative */
 				val->intval = ~val->intval & 0x7fff;
@@ -244,12 +219,11 @@ static int max17042_get_property(struct power_supply *psy,
 		break;
 	case POWER_SUPPLY_PROP_CURRENT_AVG:
 		if (chip->pdata->enable_current_sense) {
-			ret = max17042_read_reg(chip->client,
-						MAX17042_AvgCurrent);
+			ret = regmap_read(map, MAX17042_AvgCurrent, &data);
 			if (ret < 0)
 				return ret;
 
-			val->intval = ret;
+			val->intval = data;
 			if (val->intval & 0x8000) {
 				/* Negative */
 				val->intval = ~val->intval & 0x7fff;
@@ -267,16 +241,15 @@ static int max17042_get_property(struct power_supply *psy,
 	return 0;
 }
 
-static int max17042_write_verify_reg(struct i2c_client *client,
-				u8 reg, u16 value)
+static int max17042_write_verify_reg(struct regmap *map, u8 reg, u32 value)
 {
 	int retries = 8;
 	int ret;
-	u16 read_value;
+	u32 read_value;
 
 	do {
-		ret = i2c_smbus_write_word_data(client, reg, value);
-		read_value =  max17042_read_reg(client, reg);
+		ret = regmap_write(map, reg, value);
+		regmap_read(map, reg, &read_value);
 		if (read_value != value) {
 			ret = -EIO;
 			retries--;
@@ -284,50 +257,51 @@ static int max17042_write_verify_reg(struct i2c_client *client,
 	} while (retries && read_value != value);
 
 	if (ret < 0)
-		dev_err(&client->dev, "%s: err %d\n", __func__, ret);
+		pr_err("%s: err %d\n", __func__, ret);
 
 	return ret;
 }
 
-static inline void max17042_override_por(
-	struct i2c_client *client, u8 reg, u16 value)
+static inline void max17042_override_por(struct regmap *map,
+					 u8 reg, u16 value)
 {
 	if (value)
-		max17042_write_reg(client, reg, value);
+		regmap_write(map, reg, value);
 }
 
 static inline void max10742_unlock_model(struct max17042_chip *chip)
 {
-	struct i2c_client *client = chip->client;
-	max17042_write_reg(client, MAX17042_MLOCKReg1, MODEL_UNLOCK1);
-	max17042_write_reg(client, MAX17042_MLOCKReg2, MODEL_UNLOCK2);
+	struct regmap *map = chip->regmap;
+	regmap_write(map, MAX17042_MLOCKReg1, MODEL_UNLOCK1);
+	regmap_write(map, MAX17042_MLOCKReg2, MODEL_UNLOCK2);
 }
 
 static inline void max10742_lock_model(struct max17042_chip *chip)
 {
-	struct i2c_client *client = chip->client;
-	max17042_write_reg(client, MAX17042_MLOCKReg1, MODEL_LOCK1);
-	max17042_write_reg(client, MAX17042_MLOCKReg2, MODEL_LOCK2);
+	struct regmap *map = chip->regmap;
+
+	regmap_write(map, MAX17042_MLOCKReg1, MODEL_LOCK1);
+	regmap_write(map, MAX17042_MLOCKReg2, MODEL_LOCK2);
 }
 
 static inline void max17042_write_model_data(struct max17042_chip *chip,
 					u8 addr, int size)
 {
-	struct i2c_client *client = chip->client;
+	struct regmap *map = chip->regmap;
 	int i;
 	for (i = 0; i < size; i++)
-		max17042_write_reg(client, addr + i,
-				chip->pdata->config_data->cell_char_tbl[i]);
+		regmap_write(map, addr + i,
+			chip->pdata->config_data->cell_char_tbl[i]);
 }
 
 static inline void max17042_read_model_data(struct max17042_chip *chip,
-					u8 addr, u16 *data, int size)
+					u8 addr, u32 *data, int size)
 {
-	struct i2c_client *client = chip->client;
+	struct regmap *map = chip->regmap;
 	int i;
 
 	for (i = 0; i < size; i++)
-		data[i] = max17042_read_reg(client, addr + i);
+		regmap_read(map, addr + i, &data[i]);
 }
 
 static inline int max17042_model_data_compare(struct max17042_chip *chip,
@@ -350,7 +324,7 @@ static int max17042_init_model(struct max17042_chip *chip)
 {
 	int ret;
 	int table_size = ARRAY_SIZE(chip->pdata->config_data->cell_char_tbl);
-	u16 *temp_data;
+	u32 *temp_data;
 
 	temp_data = kcalloc(table_size, sizeof(*temp_data), GFP_KERNEL);
 	if (!temp_data)
@@ -365,7 +339,7 @@ static int max17042_init_model(struct max17042_chip *chip)
 	ret = max17042_model_data_compare(
 		chip,
 		chip->pdata->config_data->cell_char_tbl,
-		temp_data,
+		(u16 *)temp_data,
 		table_size);
 
 	max10742_lock_model(chip);
@@ -378,7 +352,7 @@ static int max17042_verify_model_lock(struct max17042_chip *chip)
 {
 	int i;
 	int table_size = ARRAY_SIZE(chip->pdata->config_data->cell_char_tbl);
-	u16 *temp_data;
+	u32 *temp_data;
 	int ret = 0;
 
 	temp_data = kcalloc(table_size, sizeof(*temp_data), GFP_KERNEL);
@@ -398,40 +372,38 @@ static int max17042_verify_model_lock(struct max17042_chip *chip)
 static void max17042_write_config_regs(struct max17042_chip *chip)
 {
 	struct max17042_config_data *config = chip->pdata->config_data;
+	struct regmap *map = chip->regmap;
 
-	max17042_write_reg(chip->client, MAX17042_CONFIG, config->config);
-	max17042_write_reg(chip->client, MAX17042_LearnCFG, config->learn_cfg);
-	max17042_write_reg(chip->client, MAX17042_FilterCFG,
+	regmap_write(map, MAX17042_CONFIG, config->config);
+	regmap_write(map, MAX17042_LearnCFG, config->learn_cfg);
+	regmap_write(map, MAX17042_FilterCFG,
 			config->filter_cfg);
-	max17042_write_reg(chip->client, MAX17042_RelaxCFG, config->relax_cfg);
+	regmap_write(map, MAX17042_RelaxCFG, config->relax_cfg);
 	if (chip->chip_type == MAX17047)
-		max17042_write_reg(chip->client, MAX17047_FullSOCThr,
+		regmap_write(map, MAX17047_FullSOCThr,
 						config->full_soc_thresh);
 }
 
 static void  max17042_write_custom_regs(struct max17042_chip *chip)
 {
 	struct max17042_config_data *config = chip->pdata->config_data;
+	struct regmap *map = chip->regmap;
 
-	max17042_write_verify_reg(chip->client, MAX17042_RCOMP0,
-				config->rcomp0);
-	max17042_write_verify_reg(chip->client, MAX17042_TempCo,
-				config->tcompc0);
-	max17042_write_verify_reg(chip->client, MAX17042_ICHGTerm,
-				config->ichgt_term);
+	max17042_write_verify_reg(map, MAX17042_RCOMP0, config->rcomp0);
+	max17042_write_verify_reg(map, MAX17042_TempCo,	config->tcompc0);
+	max17042_write_verify_reg(map, MAX17042_ICHGTerm, config->ichgt_term);
 	if (chip->chip_type == MAX17042) {
-		max17042_write_reg(chip->client, MAX17042_EmptyTempCo,
-					config->empty_tempco);
-		max17042_write_verify_reg(chip->client, MAX17042_K_empty0,
+		regmap_write(map, MAX17042_EmptyTempCo,	config->empty_tempco);
+		max17042_write_verify_reg(map, MAX17042_K_empty0,
 					config->kempty0);
 	} else {
-		max17042_write_verify_reg(chip->client, MAX17047_QRTbl00,
+		max17042_write_verify_reg(map, MAX17047_QRTbl00,
 						config->qrtbl00);
-		max17042_write_verify_reg(chip->client, MAX17047_QRTbl10,
+		max17042_write_verify_reg(map, MAX17047_QRTbl10,
 						config->qrtbl10);
-		max17042_write_verify_reg(chip->client, MAX17047_QRTbl20,
+		max17042_write_verify_reg(map, MAX17047_QRTbl20,
 						config->qrtbl20);
-		max17042_write_verify_reg(chip->client, MAX17047_QRTbl30,
+		max17042_write_verify_reg(map, MAX17047_QRTbl30,
 						config->qrtbl30);
 	}
 }
@@ -439,58 +411,60 @@ static void  max17042_write_custom_regs(struct max17042_chip *chip)
 static void max17042_update_capacity_regs(struct max17042_chip *chip)
 {
 	struct max17042_config_data *config = chip->pdata->config_data;
+	struct regmap *map = chip->regmap;
 
-	max17042_write_verify_reg(chip->client, MAX17042_FullCAP,
+	max17042_write_verify_reg(map, MAX17042_FullCAP,
 				config->fullcap);
-	max17042_write_reg(chip->client, MAX17042_DesignCap,
-			config->design_cap);
-	max17042_write_verify_reg(chip->client, MAX17042_FullCAPNom,
+	regmap_write(map, MAX17042_DesignCap, config->design_cap);
+	max17042_write_verify_reg(map, MAX17042_FullCAPNom,
 				config->fullcapnom);
 }
 
 static void max17042_reset_vfsoc0_reg(struct max17042_chip *chip)
 {
-	u16 vfSoc;
+	unsigned int vfSoc;
+	struct regmap *map = chip->regmap;
 
-	vfSoc = max17042_read_reg(chip->client, MAX17042_VFSOC);
-	max17042_write_reg(chip->client, MAX17042_VFSOC0Enable, VFSOC0_UNLOCK);
-	max17042_write_verify_reg(chip->client, MAX17042_VFSOC0, vfSoc);
-	max17042_write_reg(chip->client, MAX17042_VFSOC0Enable, VFSOC0_LOCK);
+	regmap_read(map, MAX17042_VFSOC, &vfSoc);
+	regmap_write(map, MAX17042_VFSOC0Enable, VFSOC0_UNLOCK);
+	max17042_write_verify_reg(map, MAX17042_VFSOC0, vfSoc);
+	regmap_write(map, MAX17042_VFSOC0Enable, VFSOC0_LOCK);
 }
 
 static void max17042_load_new_capacity_params(struct max17042_chip *chip)
 {
-	u16 full_cap0, rep_cap, dq_acc, vfSoc;
+	u32 full_cap0, rep_cap, dq_acc, vfSoc;
 	u32 rem_cap;
 
 	struct max17042_config_data *config = chip->pdata->config_data;
+	struct regmap *map = chip->regmap;
 
-	full_cap0 = max17042_read_reg(chip->client, MAX17042_FullCAP0);
-	vfSoc = max17042_read_reg(chip->client, MAX17042_VFSOC);
+	regmap_read(map, MAX17042_FullCAP0, &full_cap0);
+	regmap_read(map, MAX17042_VFSOC, &vfSoc);
 
 	/* fg_vfSoc needs to shifted by 8 bits to get the
 	 * perc in 1% accuracy, to get the right rem_cap multiply
 	 * full_cap0, fg_vfSoc and devide by 100
 	 */
 	rem_cap = ((vfSoc >> 8) * full_cap0) / 100;
-	max17042_write_verify_reg(chip->client, MAX17042_RemCap, (u16)rem_cap);
+	max17042_write_verify_reg(map, MAX17042_RemCap, rem_cap);
 
-	rep_cap = (u16)rem_cap;
-	max17042_write_verify_reg(chip->client, MAX17042_RepCap, rep_cap);
+	rep_cap = rem_cap;
+	max17042_write_verify_reg(map, MAX17042_RepCap, rep_cap);
 
 	/* Write dQ_acc to 200% of Capacity and dP_acc to 200% */
 	dq_acc = config->fullcap / dQ_ACC_DIV;
-	max17042_write_verify_reg(chip->client, MAX17042_dQacc, dq_acc);
-	max17042_write_verify_reg(chip->client, MAX17042_dPacc, dP_ACC_200);
+	max17042_write_verify_reg(map, MAX17042_dQacc, dq_acc);
+	max17042_write_verify_reg(map, MAX17042_dPacc, dP_ACC_200);
 
-	max17042_write_verify_reg(chip->client, MAX17042_FullCAP,
+	max17042_write_verify_reg(map, MAX17042_FullCAP,
 			config->fullcap);
-	max17042_write_reg(chip->client, MAX17042_DesignCap,
+	regmap_write(map, MAX17042_DesignCap,
 			config->design_cap);
-	max17042_write_verify_reg(chip->client, MAX17042_FullCAPNom,
+	max17042_write_verify_reg(map, MAX17042_FullCAPNom,
 			config->fullcapnom);
 	/* Update SOC register with new SOC */
-	max17042_write_reg(chip->client, MAX17042_RepSOC, vfSoc);
+	regmap_write(map, MAX17042_RepSOC, vfSoc);
 }
 
 /*
@@ -500,59 +474,60 @@ static void max17042_load_new_capacity_params(struct max17042_chip *chip)
  */
 static inline void max17042_override_por_values(struct max17042_chip *chip)
 {
-	struct i2c_client *client = chip->client;
+	struct regmap *map = chip->regmap;
 	struct max17042_config_data *config = chip->pdata->config_data;
 
-	max17042_override_por(client, MAX17042_TGAIN, config->tgain);
-	max17042_override_por(client, MAx17042_TOFF, config->toff);
-	max17042_override_por(client, MAX17042_CGAIN, config->cgain);
-	max17042_override_por(client, MAX17042_COFF, config->coff);
-
-	max17042_override_por(client, MAX17042_VALRT_Th, config->valrt_thresh);
-	max17042_override_por(client, MAX17042_TALRT_Th, config->talrt_thresh);
-	max17042_override_por(client, MAX17042_SALRT_Th,
-			config->soc_alrt_thresh);
-	max17042_override_por(client, MAX17042_CONFIG, config->config);
-	max17042_override_por(client, MAX17042_SHDNTIMER, config->shdntimer);
-
-	max17042_override_por(client, MAX17042_DesignCap, config->design_cap);
-	max17042_override_por(client, MAX17042_ICHGTerm, config->ichgt_term);
-
-	max17042_override_por(client, MAX17042_AtRate, config->at_rate);
-	max17042_override_por(client, MAX17042_LearnCFG, config->learn_cfg);
-	max17042_override_por(client, MAX17042_FilterCFG, config->filter_cfg);
-	max17042_override_por(client, MAX17042_RelaxCFG, config->relax_cfg);
-	max17042_override_por(client, MAX17042_MiscCFG, config->misc_cfg);
-	max17042_override_por(client, MAX17042_MaskSOC, config->masksoc);
-
-	max17042_override_por(client, MAX17042_FullCAP, config->fullcap);
-	max17042_override_por(client, MAX17042_FullCAPNom, config->fullcapnom);
+	max17042_override_por(map, MAX17042_TGAIN, config->tgain);
+	max17042_override_por(map, MAx17042_TOFF, config->toff);
+	max17042_override_por(map, MAX17042_CGAIN, config->cgain);
+	max17042_override_por(map, MAX17042_COFF, config->coff);
+
+	max17042_override_por(map, MAX17042_VALRT_Th, config->valrt_thresh);
+	max17042_override_por(map, MAX17042_TALRT_Th, config->talrt_thresh);
+	max17042_override_por(map, MAX17042_SALRT_Th,
+						config->soc_alrt_thresh);
+	max17042_override_por(map, MAX17042_CONFIG, config->config);
+	max17042_override_por(map, MAX17042_SHDNTIMER, config->shdntimer);
+
+	max17042_override_por(map, MAX17042_DesignCap, config->design_cap);
+	max17042_override_por(map, MAX17042_ICHGTerm, config->ichgt_term);
+
+	max17042_override_por(map, MAX17042_AtRate, config->at_rate);
+	max17042_override_por(map, MAX17042_LearnCFG, config->learn_cfg);
+	max17042_override_por(map, MAX17042_FilterCFG, config->filter_cfg);
+	max17042_override_por(map, MAX17042_RelaxCFG, config->relax_cfg);
+	max17042_override_por(map, MAX17042_MiscCFG, config->misc_cfg);
+	max17042_override_por(map, MAX17042_MaskSOC, config->masksoc);
+
+	max17042_override_por(map, MAX17042_FullCAP, config->fullcap);
+	max17042_override_por(map, MAX17042_FullCAPNom, config->fullcapnom);
 	if (chip->chip_type == MAX17042)
-		max17042_override_por(client, MAX17042_SOC_empty,
+		max17042_override_por(map, MAX17042_SOC_empty,
 						config->socempty);
-	max17042_override_por(client, MAX17042_LAvg_empty, config->lavg_empty);
-	max17042_override_por(client, MAX17042_dQacc, config->dqacc);
-	max17042_override_por(client, MAX17042_dPacc, config->dpacc);
+	max17042_override_por(map, MAX17042_LAvg_empty, config->lavg_empty);
+	max17042_override_por(map, MAX17042_dQacc, config->dqacc);
+	max17042_override_por(map, MAX17042_dPacc, config->dpacc);
 
 	if (chip->chip_type == MAX17042)
-		max17042_override_por(client, MAX17042_V_empty, config->vempty);
+		max17042_override_por(map, MAX17042_V_empty, config->vempty);
 	else
-		max17042_override_por(client, MAX17047_V_empty, config->vempty);
-	max17042_override_por(client, MAX17042_TempNom, config->temp_nom);
-	max17042_override_por(client, MAX17042_TempLim, config->temp_lim);
-	max17042_override_por(client, MAX17042_FCTC, config->fctc);
-	max17042_override_por(client, MAX17042_RCOMP0, config->rcomp0);
-	max17042_override_por(client, MAX17042_TempCo, config->tcompc0);
+		max17042_override_por(map, MAX17047_V_empty, config->vempty);
+	max17042_override_por(map, MAX17042_TempNom, config->temp_nom);
+	max17042_override_por(map, MAX17042_TempLim, config->temp_lim);
+	max17042_override_por(map, MAX17042_FCTC, config->fctc);
+	max17042_override_por(map, MAX17042_RCOMP0, config->rcomp0);
+	max17042_override_por(map, MAX17042_TempCo, config->tcompc0);
 	if (chip->chip_type) {
-		max17042_override_por(client, MAX17042_EmptyTempCo,
-					config->empty_tempco);
-		max17042_override_por(client, MAX17042_K_empty0,
-					config->kempty0);
+		max17042_override_por(map, MAX17042_EmptyTempCo,
+						config->empty_tempco);
+		max17042_override_por(map, MAX17042_K_empty0,
+						config->kempty0);
 	}
 }
 
 static int max17042_init_chip(struct max17042_chip *chip)
 {
+	struct regmap *map = chip->regmap;
 	int ret;
 	int val;
 
@@ -597,31 +572,32 @@ static int max17042_init_chip(struct max17042_chip *chip)
 	max17042_load_new_capacity_params(chip);
 
 	/* Init complete, Clear the POR bit */
-	val = max17042_read_reg(chip->client, MAX17042_STATUS);
-	max17042_write_reg(chip->client, MAX17042_STATUS,
-			val & (~STATUS_POR_BIT));
+	regmap_read(map, MAX17042_STATUS, &val);
+	regmap_write(map, MAX17042_STATUS, val & (~STATUS_POR_BIT));
 	return 0;
 }
 
 static void max17042_set_soc_threshold(struct max17042_chip *chip, u16 off)
 {
-	u16 soc, soc_tr;
+	struct regmap *map = chip->regmap;
+	u32 soc, soc_tr;
 
 	/* program interrupt thesholds such that we should
 	 * get interrupt for every 'off' perc change in the soc
 	 */
-	soc = max17042_read_reg(chip->client, MAX17042_RepSOC) >> 8;
+	regmap_read(map, MAX17042_RepSOC, &soc);
+	soc >>= 8;
 	soc_tr = (soc + off) << 8;
 	soc_tr |= (soc - off);
-	max17042_write_reg(chip->client, MAX17042_SALRT_Th, soc_tr);
+	regmap_write(map, MAX17042_SALRT_Th, soc_tr);
 }
 
 static irqreturn_t max17042_thread_handler(int id, void *dev)
 {
 	struct max17042_chip *chip = dev;
-	u16 val;
+	u32 val;
 
-	val = max17042_read_reg(chip->client, MAX17042_STATUS);
+	regmap_read(chip->regmap, MAX17042_STATUS, &val);
 	if ((val & STATUS_INTR_SOCMIN_BIT) ||
 		(val & STATUS_INTR_SOCMAX_BIT)) {
 		dev_info(&chip->client->dev, "SOC threshold INTR\n");
@@ -682,13 +658,20 @@ max17042_get_pdata(struct device *dev)
 }
 #endif
 
+static struct regmap_config max17042_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 16,
+	.val_format_endian = REGMAP_ENDIAN_NATIVE,
+};
+
 static int max17042_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
 	struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent);
 	struct max17042_chip *chip;
 	int ret;
-	int reg;
+	int i;
+	u32 val;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WORD_DATA))
 		return -EIO;
@@ -698,6 +681,12 @@ static int max17042_probe(struct i2c_client *client,
 		return -ENOMEM;
 
 	chip->client = client;
+	chip->regmap = devm_regmap_init_i2c(client, &max17042_regmap_config);
+	if (IS_ERR(chip->regmap)) {
+		dev_err(&client->dev, "Failed to initialize regmap\n");
+		return -EINVAL;
+	}
+
 	chip->pdata = max17042_get_pdata(&client->dev);
 	if (!chip->pdata) {
 		dev_err(&client->dev, "no platform data provided\n");
@@ -706,15 +695,15 @@ static int max17042_probe(struct i2c_client *client,
 
 	i2c_set_clientdata(client, chip);
 
-	ret = max17042_read_reg(chip->client, MAX17042_DevName);
-	if (ret == MAX17042_IC_VERSION) {
+	regmap_read(chip->regmap, MAX17042_DevName, &val);
+	if (val == MAX17042_IC_VERSION) {
 		dev_dbg(&client->dev, "chip type max17042 detected\n");
 		chip->chip_type = MAX17042;
-	} else if (ret == MAX17047_IC_VERSION) {
+	} else if (val == MAX17047_IC_VERSION) {
 		dev_dbg(&client->dev, "chip type max17047/50 detected\n");
 		chip->chip_type = MAX17047;
 	} else {
-		dev_err(&client->dev, "device version mismatch: %x\n", ret);
+		dev_err(&client->dev, "device version mismatch: %x\n", val);
 		return -EIO;
 	}
 
@@ -733,13 +722,15 @@ static int max17042_probe(struct i2c_client *client,
 		chip->pdata->r_sns = MAX17042_DEFAULT_SNS_RESISTOR;
 
 	if (chip->pdata->init_data)
-		max17042_set_reg(client, chip->pdata->init_data,
-				chip->pdata->num_init_data);
+		for (i = 0; i < chip->pdata->num_init_data; i++)
+			regmap_write(chip->regmap,
+					chip->pdata->init_data[i].addr,
+					chip->pdata->init_data[i].data);
 
 	if (!chip->pdata->enable_current_sense) {
-		max17042_write_reg(client, MAX17042_CGAIN, 0x0000);
-		max17042_write_reg(client, MAX17042_MiscCFG, 0x0003);
-		max17042_write_reg(client, MAX17042_LearnCFG, 0x0007);
+		regmap_write(chip->regmap, MAX17042_CGAIN, 0x0000);
+		regmap_write(chip->regmap, MAX17042_MiscCFG, 0x0003);
+		regmap_write(chip->regmap, MAX17042_LearnCFG, 0x0007);
 	}
 
 	ret = power_supply_register(&client->dev, &chip->battery);
@@ -754,9 +745,9 @@ static int max17042_probe(struct i2c_client *client,
 						IRQF_TRIGGER_FALLING,
 						chip->battery.name, chip);
 		if (!ret) {
-			reg =  max17042_read_reg(client, MAX17042_CONFIG);
-			reg |= CONFIG_ALRT_BIT_ENBL;
-			max17042_write_reg(client, MAX17042_CONFIG, reg);
+			regmap_read(chip->regmap, MAX17042_CONFIG, &val);
+			val |= CONFIG_ALRT_BIT_ENBL;
+			regmap_write(chip->regmap, MAX17042_CONFIG, val);
 			max17042_set_soc_threshold(chip, 1);
 		} else {
 			client->irq = 0;
@@ -765,8 +756,8 @@ static int max17042_probe(struct i2c_client *client,
 		}
 	}
 
-	reg = max17042_read_reg(chip->client, MAX17042_STATUS);
-	if (reg & STATUS_POR_BIT) {
+	regmap_read(chip->regmap, MAX17042_STATUS, &val);
+	if (val & STATUS_POR_BIT) {
 		INIT_WORK(&chip->work, max17042_init_worker);
 		schedule_work(&chip->work);
 	} else {
-- 
cgit 


From 598c45b309eb401510653fed45fe74efae93be4e Mon Sep 17 00:00:00 2001
From: Shahed Shaikh <shahed.shaikh@qlogic.com>
Date: Fri, 25 Oct 2013 10:38:36 -0400
Subject: qlcnic: Do not force adapter to perform LRO without destination IP
 check

Forcing adapter to perform LRO without destination IP check
degrades the performance.

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
index f8adc7b01f1f..b64e2bef9428 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c
@@ -785,8 +785,6 @@ void qlcnic_82xx_config_intr_coalesce(struct qlcnic_adapter *adapter)
 
 #define QLCNIC_ENABLE_IPV4_LRO		1
 #define QLCNIC_ENABLE_IPV6_LRO		2
-#define QLCNIC_NO_DEST_IPV4_CHECK	(1 << 8)
-#define QLCNIC_NO_DEST_IPV6_CHECK	(2 << 8)
 
 int qlcnic_82xx_config_hw_lro(struct qlcnic_adapter *adapter, int enable)
 {
@@ -806,11 +804,10 @@ int qlcnic_82xx_config_hw_lro(struct qlcnic_adapter *adapter, int enable)
 
 	word = 0;
 	if (enable) {
-		word = QLCNIC_ENABLE_IPV4_LRO | QLCNIC_NO_DEST_IPV4_CHECK;
+		word = QLCNIC_ENABLE_IPV4_LRO;
 		if (adapter->ahw->extra_capability[0] &
 		    QLCNIC_FW_CAP2_HW_LRO_IPV6)
-			word |= QLCNIC_ENABLE_IPV6_LRO |
-				QLCNIC_NO_DEST_IPV6_CHECK;
+			word |= QLCNIC_ENABLE_IPV6_LRO;
 	}
 
 	req.words[0] = cpu_to_le64(word);
-- 
cgit 


From d6994ca798f5897a4342f727b21d77e01d92f093 Mon Sep 17 00:00:00 2001
From: Shahed Shaikh <shahed.shaikh@qlogic.com>
Date: Fri, 25 Oct 2013 10:38:37 -0400
Subject: qlcnic: Do not read QLCNIC_FW_CAPABILITY_MORE_CAPS bit for 83xx
 adapter

Only 82xx adapter advertises QLCNIC_FW_CAPABILITY_MORE_CAPS bit.
Reading this bit from 83xx adapter causes the driver to skip
extra capabilities registers.

Because of this, driver was not issuing qlcnic_fw_cmd_set_drv_version()
for 83xx adapter.

This bug was introduced in commit 8af3f33db05c6d0146ad14905145a5c923770856
 ("qlcnic: Add support for 'set driver version' in 83XX").

Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c | 6 +++---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c    | 6 ++++--
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index 3ca00e05f23d..ace217c447dd 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -2276,9 +2276,9 @@ int qlcnic_83xx_get_nic_info(struct qlcnic_adapter *adapter,
 		temp = (cmd.rsp.arg[8] & 0x7FFE0000) >> 17;
 		npar_info->max_linkspeed_reg_offset = temp;
 	}
-	if (npar_info->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS)
-		memcpy(ahw->extra_capability, &cmd.rsp.arg[16],
-		       sizeof(ahw->extra_capability));
+
+	memcpy(ahw->extra_capability, &cmd.rsp.arg[16],
+	       sizeof(ahw->extra_capability));
 
 out:
 	qlcnic_free_mbx_args(&cmd);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 9e61eb867452..d8f4897e9e82 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -1131,7 +1131,10 @@ qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 		if (err == -EIO)
 			return err;
 		adapter->ahw->extra_capability[0] = temp;
+	} else {
+		adapter->ahw->extra_capability[0] = 0;
 	}
+
 	adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
 	adapter->ahw->max_mtu = nic_info.max_mtu;
 
@@ -2159,8 +2162,7 @@ void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
 	else if (qlcnic_83xx_check(adapter))
 		fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
 
-	if ((ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) &&
-	    (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER))
+	if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
 		qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
 }
 
-- 
cgit 


From 7203db97b7378c2571797c13aa89327a2c487ea1 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 7 Jun 2013 10:17:22 +0800
Subject: UBIFS: fix return code

Fix to return -ENOMEM in the kmalloc() and d_make_root() error handling
case instead of 0, as done elsewhere in those functions.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
---
 fs/ubifs/super.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index 879b9976c12b..01e1ad08d08e 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -1629,8 +1629,10 @@ static int ubifs_remount_rw(struct ubifs_info *c)
 	}
 
 	c->write_reserve_buf = kmalloc(COMPRESSED_DATA_NODE_BUF_SZ, GFP_KERNEL);
-	if (!c->write_reserve_buf)
+	if (!c->write_reserve_buf) {
+		err = -ENOMEM;
 		goto out;
+	}
 
 	err = ubifs_lpt_init(c, 0, 1);
 	if (err)
@@ -2063,8 +2065,10 @@ static int ubifs_fill_super(struct super_block *sb, void *data, int silent)
 	}
 
 	sb->s_root = d_make_root(root);
-	if (!sb->s_root)
+	if (!sb->s_root) {
+		err = -ENOMEM;
 		goto out_umount;
+	}
 
 	mutex_unlock(&c->umount_mutex);
 	return 0;
-- 
cgit 


From 4c4e4f61368164f326fe59e2156c70d7faa72c17 Mon Sep 17 00:00:00 2001
From: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Date: Mon, 21 Oct 2013 21:35:08 +0530
Subject: x86/locking/kconfig: Update paravirt spinlock Kconfig description

Since the paravirt spinlock optimizations went into the v3.12 kernel
we have a very good performance benefit for paravirtualized KVM / Xen
kernels. Also we no longer suffer from 5% side effect on native
kernel that is mentioned in the Kconfig entry.

So update the Kconfig entry accordingly.

pvspinlock benefit on KVM link:

  https://lkml.org/lkml/2013/8/6/178

Attilio's tests on native kernel impact:

  http://blog.xen.org/index.php/2012/05/11/benchmarking-the-new-pv-ticketlock-implementation/

Signed-off-by: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Cc: <konrad.wilk@oracle.com>
Cc: <linux@eikelenboom.it>
Cc: <gleb@redhat.com>
Cc: <pbonzini@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1382371508-3843-1-git-send-email-raghavendra.kt@linux.vnet.ibm.com
[ Updated the changelog. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/Kconfig | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index ee2fb9d37745..a92572de2ac1 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -638,10 +638,10 @@ config PARAVIRT_SPINLOCKS
 	  spinlock implementation with something virtualization-friendly
 	  (for example, block the virtual CPU rather than spinning).
 
-	  Unfortunately the downside is an up to 5% performance hit on
-	  native kernels, with various workloads.
+	  It has a minimal impact on native kernels and gives a nice performance
+	  benefit on paravirtualized KVM / Xen kernels.
 
-	  If you are unsure how to answer this question, answer N.
+	  If you are unsure how to answer this question, answer Y.
 
 source "arch/x86/xen/Kconfig"
 
-- 
cgit 


From e9aa39bb7c4415ca26484239cc3a6686d549bf4f Mon Sep 17 00:00:00 2001
From: Li Bin <huawei.libin@huawei.com>
Date: Mon, 21 Oct 2013 20:15:43 +0800
Subject: sched/rt: Fix task_tick_rt() comment

This issue was introduced by 454c79999f7e ("sched/rt: Fix SCHED_RR
across cgroups") that missed the word 'not'. Fix it.

Signed-off-by: Li Bin <huawei.libin@huawei.com>
Cc: <guohanjun@huawei.com>
Cc: <xiexiuqi@huawei.com>
Cc: <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1382357743-54136-1-git-send-email-huawei.libin@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/rt.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index a848f526b941..7d57275fc396 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -1935,8 +1935,8 @@ static void task_tick_rt(struct rq *rq, struct task_struct *p, int queued)
 	p->rt.time_slice = sched_rr_timeslice;
 
 	/*
-	 * Requeue to the end of queue if we (and all of our ancestors) are the
-	 * only element on the queue
+	 * Requeue to the end of queue if we (and all of our ancestors) are not
+	 * the only element on the queue
 	 */
 	for_each_sched_rt_entity(rt_se) {
 		if (rt_se->run_list.prev != rt_se->run_list.next) {
-- 
cgit 


From 3df7b41aa5e7797f391d0a41f8b0dce1fe366a09 Mon Sep 17 00:00:00 2001
From: Jan Beulich <JBeulich@suse.com>
Date: Mon, 21 Oct 2013 09:43:57 +0100
Subject: x86: Unify copy_from_user() size checking

Commits 4a3127693001c61a21d1ce680db6340623f52e93 ("x86: Turn the
copy_from_user check into an (optional) compile time warning")
and 63312b6a6faae3f2e5577f2b001e3b504f10a2aa ("x86: Add a
Kconfig option to turn the copy_from_user warnings into errors")
touched only the 32-bit variant of copy_from_user(), whereas the
original commit 9f0cf4adb6aa0bfccf675c938124e68f7f06349d ("x86:
Use __builtin_object_size() to validate the buffer size for
copy_from_user()") also added the same code to the 64-bit one.

Further the earlier conversion from an inline WARN() to the call
to copy_from_user_overflow() went a little too far: When the
number of bytes to be copied is not a constant (e.g. [looking at
3.11] in drivers/net/tun.c:__tun_chr_ioctl() or
drivers/pci/pcie/aer/aer_inject.c:aer_inject_write()), the
compiler will always have to keep the funtion call, and hence
there will always be a warning. By using __builtin_constant_p()
we can avoid this.

And then this slightly extends the effect of
CONFIG_DEBUG_STRICT_USER_COPY_CHECKS in that apart from
converting warnings to errors in the constant size case, it
retains the (possibly wrong) warnings in the non-constant size
case, such that if someone is prepared to get a few false
positives, (s)he'll be able to recover the current behavior
(except that these diagnostics now will never be converted to
errors).

Since the 32-bit variant (intentionally) didn't call
might_fault(), the unification results in this being called
twice now. Adding a suitable #ifdef would be the alternative if
that's a problem.

I'd like to point out though that with
__compiletime_object_size() being restricted to gcc before 4.6,
the whole construct is going to become more and more pointless
going forward. I would question however that commit
2fb0815c9ee6b9ac50e15dd8360ec76d9fa46a2 ("gcc4: disable
__compiletime_object_size for GCC 4.6+") was really necessary,
and instead this should have been dealt with as is done here
from the beginning.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/5265056D02000078000FC4F3@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/include/asm/uaccess.h    | 68 +++++++++++++++++++++++++++++++++++++++
 arch/x86/include/asm/uaccess_32.h | 26 ---------------
 arch/x86/include/asm/uaccess_64.h | 18 -----------
 arch/x86/lib/usercopy_32.c        |  3 +-
 4 files changed, 69 insertions(+), 46 deletions(-)

diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index 5838fa911aa0..c9799ed208a8 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -542,5 +542,73 @@ extern struct movsl_mask {
 # include <asm/uaccess_64.h>
 #endif
 
+unsigned long __must_check _copy_from_user(void *to, const void __user *from,
+					   unsigned n);
+
+#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
+# define copy_user_diag __compiletime_error
+#else
+# define copy_user_diag __compiletime_warning
+#endif
+
+extern void copy_user_diag("copy_from_user() buffer size is too small")
+copy_from_user_overflow(void);
+
+#undef copy_user_diag
+
+#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
+
+extern void
+__compiletime_warning("copy_from_user() buffer size is not provably correct")
+__copy_from_user_overflow(void) __asm__("copy_from_user_overflow");
+#define __copy_from_user_overflow(size, count) __copy_from_user_overflow()
+
+#else
+
+static inline void
+__copy_from_user_overflow(int size, unsigned long count)
+{
+	WARN(1, "Buffer overflow detected (%d < %lu)!\n", size, count);
+}
+
+#endif
+
+static inline unsigned long __must_check
+copy_from_user(void *to, const void __user *from, unsigned long n)
+{
+	int sz = __compiletime_object_size(to);
+
+	might_fault();
+
+	/*
+	 * While we would like to have the compiler do the checking for us
+	 * even in the non-constant size case, any false positives there are
+	 * a problem (especially when DEBUG_STRICT_USER_COPY_CHECKS, but even
+	 * without - the [hopefully] dangerous looking nature of the warning
+	 * would make people go look at the respecitive call sites over and
+	 * over again just to find that there's no problem).
+	 *
+	 * And there are cases where it's just not realistic for the compiler
+	 * to prove the count to be in range. For example when multiple call
+	 * sites of a helper function - perhaps in different source files -
+	 * all doing proper range checking, yet the helper function not doing
+	 * so again.
+	 *
+	 * Therefore limit the compile time checking to the constant size
+	 * case, and do only runtime checking for non-constant sizes.
+	 */
+
+	if (likely(sz < 0 || sz >= n))
+		n = _copy_from_user(to, from, n);
+	else if(__builtin_constant_p(n))
+		copy_from_user_overflow();
+	else
+		__copy_from_user_overflow(sz, n);
+
+	return n;
+}
+
+#undef __copy_from_user_overflow
+
 #endif /* _ASM_X86_UACCESS_H */
 
diff --git a/arch/x86/include/asm/uaccess_32.h b/arch/x86/include/asm/uaccess_32.h
index 7f760a9f1f61..c348c87cefc8 100644
--- a/arch/x86/include/asm/uaccess_32.h
+++ b/arch/x86/include/asm/uaccess_32.h
@@ -186,31 +186,5 @@ __copy_from_user_inatomic_nocache(void *to, const void __user *from,
 
 unsigned long __must_check copy_to_user(void __user *to,
 					const void *from, unsigned long n);
-unsigned long __must_check _copy_from_user(void *to,
-					  const void __user *from,
-					  unsigned long n);
-
-
-extern void copy_from_user_overflow(void)
-#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
-	__compiletime_error("copy_from_user() buffer size is not provably correct")
-#else
-	__compiletime_warning("copy_from_user() buffer size is not provably correct")
-#endif
-;
-
-static inline unsigned long __must_check copy_from_user(void *to,
-					  const void __user *from,
-					  unsigned long n)
-{
-	int sz = __compiletime_object_size(to);
-
-	if (likely(sz == -1 || sz >= n))
-		n = _copy_from_user(to, from, n);
-	else
-		copy_from_user_overflow();
-
-	return n;
-}
 
 #endif /* _ASM_X86_UACCESS_32_H */
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
index 4f7923dd0007..4df93c46852b 100644
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -48,26 +48,8 @@ copy_user_generic(void *to, const void *from, unsigned len)
 __must_check unsigned long
 _copy_to_user(void __user *to, const void *from, unsigned len);
 __must_check unsigned long
-_copy_from_user(void *to, const void __user *from, unsigned len);
-__must_check unsigned long
 copy_in_user(void __user *to, const void __user *from, unsigned len);
 
-static inline unsigned long __must_check copy_from_user(void *to,
-					  const void __user *from,
-					  unsigned long n)
-{
-	int sz = __compiletime_object_size(to);
-
-	might_fault();
-	if (likely(sz == -1 || sz >= n))
-		n = _copy_from_user(to, from, n);
-#ifdef CONFIG_DEBUG_VM
-	else
-		WARN(1, "Buffer overflow detected!\n");
-#endif
-	return n;
-}
-
 static __always_inline __must_check
 int copy_to_user(void __user *dst, const void *src, unsigned size)
 {
diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c
index 3eb18acd0e40..c408d0222917 100644
--- a/arch/x86/lib/usercopy_32.c
+++ b/arch/x86/lib/usercopy_32.c
@@ -679,8 +679,7 @@ EXPORT_SYMBOL(copy_to_user);
  * If some data could not be copied, this function will pad the copied
  * data to the requested size using zero bytes.
  */
-unsigned long
-_copy_from_user(void *to, const void __user *from, unsigned long n)
+unsigned long _copy_from_user(void *to, const void __user *from, unsigned n)
 {
 	if (access_ok(VERIFY_READ, from, n))
 		n = __copy_from_user(to, from, n);
-- 
cgit 


From 7a3d9b0f3abbea957b829cdfff8169872c575642 Mon Sep 17 00:00:00 2001
From: Jan Beulich <JBeulich@suse.com>
Date: Mon, 21 Oct 2013 09:44:37 +0100
Subject: x86: Unify copy_to_user() and add size checking to it

Similarly to copy_from_user(), where the range check is to
protect against kernel memory corruption, copy_to_user() can
benefit from such checking too: Here it protects against kernel
information leaks.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: <arjan@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/5265059502000078000FC4F6@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
---
 arch/x86/include/asm/uaccess.h    | 30 ++++++++++++++++++++++++++++++
 arch/x86/include/asm/uaccess_32.h |  3 ---
 arch/x86/include/asm/uaccess_64.h | 10 ----------
 arch/x86/lib/usercopy_32.c        |  5 ++---
 4 files changed, 32 insertions(+), 16 deletions(-)

diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h
index c9799ed208a8..8ec57c07b125 100644
--- a/arch/x86/include/asm/uaccess.h
+++ b/arch/x86/include/asm/uaccess.h
@@ -544,6 +544,8 @@ extern struct movsl_mask {
 
 unsigned long __must_check _copy_from_user(void *to, const void __user *from,
 					   unsigned n);
+unsigned long __must_check _copy_to_user(void __user *to, const void *from,
+					 unsigned n);
 
 #ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS
 # define copy_user_diag __compiletime_error
@@ -553,6 +555,8 @@ unsigned long __must_check _copy_from_user(void *to, const void __user *from,
 
 extern void copy_user_diag("copy_from_user() buffer size is too small")
 copy_from_user_overflow(void);
+extern void copy_user_diag("copy_to_user() buffer size is too small")
+copy_to_user_overflow(void) __asm__("copy_from_user_overflow");
 
 #undef copy_user_diag
 
@@ -563,6 +567,11 @@ __compiletime_warning("copy_from_user() buffer size is not provably correct")
 __copy_from_user_overflow(void) __asm__("copy_from_user_overflow");
 #define __copy_from_user_overflow(size, count) __copy_from_user_overflow()
 
+extern void
+__compiletime_warning("copy_to_user() buffer size is not provably correct")
+__copy_to_user_overflow(void) __asm__("copy_from_user_overflow");
+#define __copy_to_user_overflow(size, count) __copy_to_user_overflow()
+
 #else
 
 static inline void
@@ -571,6 +580,8 @@ __copy_from_user_overflow(int size, unsigned long count)
 	WARN(1, "Buffer overflow detected (%d < %lu)!\n", size, count);
 }
 
+#define __copy_to_user_overflow __copy_from_user_overflow
+
 #endif
 
 static inline unsigned long __must_check
@@ -608,7 +619,26 @@ copy_from_user(void *to, const void __user *from, unsigned long n)
 	return n;
 }
 
+static inline unsigned long __must_check
+copy_to_user(void __user *to, const void *from, unsigned long n)
+{
+	int sz = __compiletime_object_size(from);
+
+	might_fault();
+
+	/* See the comment in copy_from_user() above. */
+	if (likely(sz < 0 || sz >= n))
+		n = _copy_to_user(to, from, n);
+	else if(__builtin_constant_p(n))
+		copy_to_user_overflow();
+	else
+		__copy_to_user_overflow(sz, n);
+
+	return n;
+}
+
 #undef __copy_from_user_overflow
+#undef __copy_to_user_overflow
 
 #endif /* _ASM_X86_UACCESS_H */
 
diff --git a/arch/x86/include/asm/uaccess_32.h b/arch/x86/include/asm/uaccess_32.h
index c348c87cefc8..3c03a5de64d3 100644
--- a/arch/x86/include/asm/uaccess_32.h
+++ b/arch/x86/include/asm/uaccess_32.h
@@ -184,7 +184,4 @@ __copy_from_user_inatomic_nocache(void *to, const void __user *from,
        return __copy_from_user_ll_nocache_nozero(to, from, n);
 }
 
-unsigned long __must_check copy_to_user(void __user *to,
-					const void *from, unsigned long n);
-
 #endif /* _ASM_X86_UACCESS_32_H */
diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h
index 4df93c46852b..0acae710fa00 100644
--- a/arch/x86/include/asm/uaccess_64.h
+++ b/arch/x86/include/asm/uaccess_64.h
@@ -45,19 +45,9 @@ copy_user_generic(void *to, const void *from, unsigned len)
 	return ret;
 }
 
-__must_check unsigned long
-_copy_to_user(void __user *to, const void *from, unsigned len);
 __must_check unsigned long
 copy_in_user(void __user *to, const void __user *from, unsigned len);
 
-static __always_inline __must_check
-int copy_to_user(void __user *dst, const void *src, unsigned size)
-{
-	might_fault();
-
-	return _copy_to_user(dst, src, size);
-}
-
 static __always_inline __must_check
 int __copy_from_user(void *dst, const void __user *src, unsigned size)
 {
diff --git a/arch/x86/lib/usercopy_32.c b/arch/x86/lib/usercopy_32.c
index c408d0222917..e2f5e21c03b3 100644
--- a/arch/x86/lib/usercopy_32.c
+++ b/arch/x86/lib/usercopy_32.c
@@ -654,14 +654,13 @@ EXPORT_SYMBOL(__copy_from_user_ll_nocache_nozero);
  * Returns number of bytes that could not be copied.
  * On success, this will be zero.
  */
-unsigned long
-copy_to_user(void __user *to, const void *from, unsigned long n)
+unsigned long _copy_to_user(void __user *to, const void *from, unsigned n)
 {
 	if (access_ok(VERIFY_WRITE, to, n))
 		n = __copy_to_user(to, from, n);
 	return n;
 }
-EXPORT_SYMBOL(copy_to_user);
+EXPORT_SYMBOL(_copy_to_user);
 
 /**
  * copy_from_user: - Copy a block of data from user space.
-- 
cgit 


From 58a4e23703b22c331b01fbd0c12161aadaa6d50b Mon Sep 17 00:00:00 2001
From: Mats Kärrman <Mats.Karrman@tritech.se>
Date: Wed, 21 Aug 2013 13:24:49 +0000
Subject: UBIFS: correct data corruption range

With power-cut emulation, it is possible that sometimes no data at all is
corrupted and that confusing messages are printed due to errors in the
computation of data corruption range.

[1] The start of the range should be [0..len-1], not [0..len].
[2] The end of the range should always be at least 1 greater than the start.

Signed-off-by: Mats Karrman <mats.karrman@tritech.se>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
---
 fs/ubifs/debug.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c
index 6e025e02ffde..cc1febd8fadf 100644
--- a/fs/ubifs/debug.c
+++ b/fs/ubifs/debug.c
@@ -2563,9 +2563,9 @@ static int corrupt_data(const struct ubifs_info *c, const void *buf,
 	unsigned int from, to, ffs = chance(1, 2);
 	unsigned char *p = (void *)buf;
 
-	from = prandom_u32() % (len + 1);
-	/* Corruption may only span one max. write unit */
-	to = min(len, ALIGN(from, c->max_write_size));
+	from = prandom_u32() % len;
+	/* Corruption span max to end of write unit */
+	to = min(len, ALIGN(from + 1, c->max_write_size));
 
 	ubifs_warn("filled bytes %u-%u with %s", from, to - 1,
 		   ffs ? "0xFFs" : "random data");
-- 
cgit 


From 09dc68d958c67c76cf672ec78b7391af453010f8 Mon Sep 17 00:00:00 2001
From: Jan Beulich <JBeulich@suse.com>
Date: Mon, 21 Oct 2013 09:35:20 +0100
Subject: x86/cpu: Track legacy CPU model data only on 32-bit kernels

struct cpu_dev's c_models is only ever set inside CONFIG_X86_32
conditionals (or code that's being built for 32-bit only), so
there's no use of reserving the (empty) space for the model
names in a 64-bit kernel.

Similarly, c_size_cache is only used in the #else of a
CONFIG_X86_64 conditional, so reserving space for (and in one
case even initializing) that field is pointless for 64-bit
kernels too.

While moving both fields to the end of the structure, I also
noticed that:

 - the c_models array size was one too small, potentially causing
   table_lookup_model() to return garbage on Intel CPUs (intel.c's
   instance was lacking the sentinel with family being zero), so the
   patch bumps that by one,

 - c_models' vendor sub-field was unused (and anyway redundant
   with the base structure's c_x86_vendor field), so the patch deletes it.

Also rename the legacy fields so that their legacy nature stands out
and comment their declarations.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Link: http://lkml.kernel.org/r/5265036802000078000FC4DB@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/cpu/amd.c     |  6 +++---
 arch/x86/kernel/cpu/centaur.c |  8 +++++---
 arch/x86/kernel/cpu/common.c  | 12 +++++++-----
 arch/x86/kernel/cpu/cpu.h     | 20 +++++++++++---------
 arch/x86/kernel/cpu/intel.c   | 12 ++++++------
 arch/x86/kernel/cpu/umc.c     |  4 ++--
 6 files changed, 34 insertions(+), 28 deletions(-)

diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 903a264af981..3daece79a142 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -823,8 +823,8 @@ static const struct cpu_dev amd_cpu_dev = {
 	.c_vendor	= "AMD",
 	.c_ident	= { "AuthenticAMD" },
 #ifdef CONFIG_X86_32
-	.c_models = {
-		{ .vendor = X86_VENDOR_AMD, .family = 4, .model_names =
+	.legacy_models = {
+		{ .family = 4, .model_names =
 		  {
 			  [3] = "486 DX/2",
 			  [7] = "486 DX/2-WB",
@@ -835,7 +835,7 @@ static const struct cpu_dev amd_cpu_dev = {
 		  }
 		},
 	},
-	.c_size_cache	= amd_size_cache,
+	.legacy_cache_size = amd_size_cache,
 #endif
 	.c_early_init   = early_init_amd,
 	.c_detect_tlb	= cpu_detect_tlb_amd,
diff --git a/arch/x86/kernel/cpu/centaur.c b/arch/x86/kernel/cpu/centaur.c
index fbf6c3bc2400..8d5652dc99dd 100644
--- a/arch/x86/kernel/cpu/centaur.c
+++ b/arch/x86/kernel/cpu/centaur.c
@@ -468,10 +468,10 @@ static void init_centaur(struct cpuinfo_x86 *c)
 #endif
 }
 
+#ifdef CONFIG_X86_32
 static unsigned int
 centaur_size_cache(struct cpuinfo_x86 *c, unsigned int size)
 {
-#ifdef CONFIG_X86_32
 	/* VIA C3 CPUs (670-68F) need further shifting. */
 	if ((c->x86 == 6) && ((c->x86_model == 7) || (c->x86_model == 8)))
 		size >>= 8;
@@ -484,16 +484,18 @@ centaur_size_cache(struct cpuinfo_x86 *c, unsigned int size)
 	if ((c->x86 == 6) && (c->x86_model == 9) &&
 				(c->x86_mask == 1) && (size == 65))
 		size -= 1;
-#endif
 	return size;
 }
+#endif
 
 static const struct cpu_dev centaur_cpu_dev = {
 	.c_vendor	= "Centaur",
 	.c_ident	= { "CentaurHauls" },
 	.c_early_init	= early_init_centaur,
 	.c_init		= init_centaur,
-	.c_size_cache	= centaur_size_cache,
+#ifdef CONFIG_X86_32
+	.legacy_cache_size = centaur_size_cache,
+#endif
 	.c_x86_vendor	= X86_VENDOR_CENTAUR,
 };
 
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 2793d1f095a2..9ada0b37ae07 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -346,7 +346,8 @@ static void filter_cpuid_features(struct cpuinfo_x86 *c, bool warn)
 /* Look up CPU names by table lookup. */
 static const char *table_lookup_model(struct cpuinfo_x86 *c)
 {
-	const struct cpu_model_info *info;
+#ifdef CONFIG_X86_32
+	const struct legacy_cpu_model_info *info;
 
 	if (c->x86_model >= 16)
 		return NULL;	/* Range check */
@@ -354,13 +355,14 @@ static const char *table_lookup_model(struct cpuinfo_x86 *c)
 	if (!this_cpu)
 		return NULL;
 
-	info = this_cpu->c_models;
+	info = this_cpu->legacy_models;
 
-	while (info && info->family) {
+	while (info->family) {
 		if (info->family == c->x86)
 			return info->model_names[c->x86_model];
 		info++;
 	}
+#endif
 	return NULL;		/* Not found */
 }
 
@@ -450,8 +452,8 @@ void cpu_detect_cache_sizes(struct cpuinfo_x86 *c)
 	c->x86_tlbsize += ((ebx >> 16) & 0xfff) + (ebx & 0xfff);
 #else
 	/* do processor-specific cache resizing */
-	if (this_cpu->c_size_cache)
-		l2size = this_cpu->c_size_cache(c, l2size);
+	if (this_cpu->legacy_cache_size)
+		l2size = this_cpu->legacy_cache_size(c, l2size);
 
 	/* Allow user to override all this if necessary. */
 	if (cachesize_override != -1)
diff --git a/arch/x86/kernel/cpu/cpu.h b/arch/x86/kernel/cpu/cpu.h
index 4041c24ae7db..c37dc37e8317 100644
--- a/arch/x86/kernel/cpu/cpu.h
+++ b/arch/x86/kernel/cpu/cpu.h
@@ -1,12 +1,6 @@
 #ifndef ARCH_X86_CPU_H
 #define ARCH_X86_CPU_H
 
-struct cpu_model_info {
-	int		vendor;
-	int		family;
-	const char	*model_names[16];
-};
-
 /* attempt to consolidate cpu attributes */
 struct cpu_dev {
 	const char	*c_vendor;
@@ -14,15 +8,23 @@ struct cpu_dev {
 	/* some have two possibilities for cpuid string */
 	const char	*c_ident[2];
 
-	struct		cpu_model_info c_models[4];
-
 	void            (*c_early_init)(struct cpuinfo_x86 *);
 	void		(*c_bsp_init)(struct cpuinfo_x86 *);
 	void		(*c_init)(struct cpuinfo_x86 *);
 	void		(*c_identify)(struct cpuinfo_x86 *);
 	void		(*c_detect_tlb)(struct cpuinfo_x86 *);
-	unsigned int	(*c_size_cache)(struct cpuinfo_x86 *, unsigned int);
 	int		c_x86_vendor;
+#ifdef CONFIG_X86_32
+	/* Optional vendor specific routine to obtain the cache size. */
+	unsigned int	(*legacy_cache_size)(struct cpuinfo_x86 *,
+					     unsigned int);
+
+	/* Family/stepping-based lookup table for model names. */
+	struct legacy_cpu_model_info {
+		int		family;
+		const char	*model_names[16];
+	}		legacy_models[5];
+#endif
 };
 
 struct _tlb_table {
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index ec7299566f79..dc1ec0dff939 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -665,8 +665,8 @@ static const struct cpu_dev intel_cpu_dev = {
 	.c_vendor	= "Intel",
 	.c_ident	= { "GenuineIntel" },
 #ifdef CONFIG_X86_32
-	.c_models = {
-		{ .vendor = X86_VENDOR_INTEL, .family = 4, .model_names =
+	.legacy_models = {
+		{ .family = 4, .model_names =
 		  {
 			  [0] = "486 DX-25/33",
 			  [1] = "486 DX-50",
@@ -679,7 +679,7 @@ static const struct cpu_dev intel_cpu_dev = {
 			  [9] = "486 DX/4-WB"
 		  }
 		},
-		{ .vendor = X86_VENDOR_INTEL, .family = 5, .model_names =
+		{ .family = 5, .model_names =
 		  {
 			  [0] = "Pentium 60/66 A-step",
 			  [1] = "Pentium 60/66",
@@ -690,7 +690,7 @@ static const struct cpu_dev intel_cpu_dev = {
 			  [8] = "Mobile Pentium MMX"
 		  }
 		},
-		{ .vendor = X86_VENDOR_INTEL, .family = 6, .model_names =
+		{ .family = 6, .model_names =
 		  {
 			  [0] = "Pentium Pro A-step",
 			  [1] = "Pentium Pro",
@@ -704,7 +704,7 @@ static const struct cpu_dev intel_cpu_dev = {
 			  [11] = "Pentium III (Tualatin)",
 		  }
 		},
-		{ .vendor = X86_VENDOR_INTEL, .family = 15, .model_names =
+		{ .family = 15, .model_names =
 		  {
 			  [0] = "Pentium 4 (Unknown)",
 			  [1] = "Pentium 4 (Willamette)",
@@ -714,7 +714,7 @@ static const struct cpu_dev intel_cpu_dev = {
 		  }
 		},
 	},
-	.c_size_cache	= intel_size_cache,
+	.legacy_cache_size = intel_size_cache,
 #endif
 	.c_detect_tlb	= intel_detect_tlb,
 	.c_early_init   = early_init_intel,
diff --git a/arch/x86/kernel/cpu/umc.c b/arch/x86/kernel/cpu/umc.c
index 202759a14121..75c5ad5d35cc 100644
--- a/arch/x86/kernel/cpu/umc.c
+++ b/arch/x86/kernel/cpu/umc.c
@@ -11,8 +11,8 @@
 static const struct cpu_dev umc_cpu_dev = {
 	.c_vendor	= "UMC",
 	.c_ident	= { "UMC UMC UMC" },
-	.c_models = {
-		{ .vendor = X86_VENDOR_UMC, .family = 4, .model_names =
+	.legacy_models	= {
+		{ .family = 4, .model_names =
 		  {
 			  [1] = "U5D",
 			  [2] = "U5S",
-- 
cgit 


From ee5872befc9324fa4c2583c24d7ee7120314a2b7 Mon Sep 17 00:00:00 2001
From: Jan Beulich <JBeulich@suse.com>
Date: Mon, 21 Oct 2013 09:31:57 +0100
Subject: x86/time: Honor ACPI FADT flag indicating absence of a CMOS RTC

Even though the omission was found only during code review
(originally in the Xen hypervisor, looking through ACPI v5 flags
and their meanings and uses), we shouldn't be creating a
corresponding platform device in that case.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Cc: John Stultz <john.stultz@linaro.org>
Link: http://lkml.kernel.org/r/5265029D02000078000FC4D2@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/rtc.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/x86/kernel/rtc.c b/arch/x86/kernel/rtc.c
index 0aa29394ed6f..5b9dd445eb89 100644
--- a/arch/x86/kernel/rtc.c
+++ b/arch/x86/kernel/rtc.c
@@ -192,6 +192,14 @@ static __init int add_rtc_cmos(void)
 	if (mrst_identify_cpu())
 		return -ENODEV;
 
+#ifdef CONFIG_ACPI
+	if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_CMOS_RTC) {
+		/* This warning can likely go away again in a year or two. */
+		pr_info("ACPI: not registering RTC platform device\n");
+		return -ENODEV;
+	}
+#endif
+
 	platform_device_register(&rtc_device);
 	dev_info(&rtc_device.dev,
 		 "registered platform RTC device (no PNP device found)\n");
-- 
cgit 


From cf4c024b908353fcc48309374d39e3399d67dfd1 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@redhat.com>
Date: Thu, 10 Oct 2013 06:55:35 -0400
Subject: sunrpc: trim off EC bytes in GSSAPI v2 unwrap

As Bruce points out in RFC 4121, section 4.2.3:

   "In Wrap tokens that provide for confidentiality, the first 16 octets
    of the Wrap token (the "header", as defined in section 4.2.6), SHALL
    be appended to the plaintext data before encryption.  Filler octets
    MAY be inserted between the plaintext data and the "header.""

...and...

   "In Wrap tokens with confidentiality, the EC field SHALL be used to
    encode the number of octets in the filler..."

It's possible for the client to stuff different data in that area on a
retransmission, which could make the checksum come out wrong in the DRC
code.

After decrypting the blob, we should trim off any extra count bytes in
addition to the checksum blob.

Reported-by: "J. Bruce Fields" <bfields@fieldses.org>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 net/sunrpc/auth_gss/gss_krb5_wrap.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/sunrpc/auth_gss/gss_krb5_wrap.c b/net/sunrpc/auth_gss/gss_krb5_wrap.c
index 5040a460f1d9..42560e55d978 100644
--- a/net/sunrpc/auth_gss/gss_krb5_wrap.c
+++ b/net/sunrpc/auth_gss/gss_krb5_wrap.c
@@ -576,8 +576,8 @@ gss_unwrap_kerberos_v2(struct krb5_ctx *kctx, int offset, struct xdr_buf *buf)
 	buf->head[0].iov_len -= GSS_KRB5_TOK_HDR_LEN + headskip;
 	buf->len -= GSS_KRB5_TOK_HDR_LEN + headskip;
 
-	/* Trim off the checksum blob */
-	xdr_buf_trim(buf, GSS_KRB5_TOK_HDR_LEN + tailskip);
+	/* Trim off the trailing "extra count" and checksum blob */
+	xdr_buf_trim(buf, ec + GSS_KRB5_TOK_HDR_LEN + tailskip);
 	return GSS_S_COMPLETE;
 }
 
-- 
cgit 


From cce6de908ee934fbea12d6cccc55b87dbd4b0c8a Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Tue, 15 Oct 2013 12:33:22 -0700
Subject: nfsd: fix Kconfig syntax

The description text for CONFIG_NFSD_V4_SECURITY_LABEL has an unpaired
quote sign which breaks syntax highlighting for the nfsd Kconfig file.
Remove it.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfsd/Kconfig b/fs/nfsd/Kconfig
index dc8f1ef665ce..f994e750e0d1 100644
--- a/fs/nfsd/Kconfig
+++ b/fs/nfsd/Kconfig
@@ -95,7 +95,7 @@ config NFSD_V4_SECURITY_LABEL
 	Smack policies on NFSv4 files, say N.
 
 	WARNING: there is still a chance of backwards-incompatible protocol changes.
-	For now we recommend "Y" only for developers and testers."
+	For now we recommend "Y" only for developers and testers.
 
 config NFSD_FAULT_INJECTION
 	bool "NFS server manual fault injection"
-- 
cgit 


From a9c9cafdde46d06a28f92e3a68b5534fa268e92d Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Sat, 26 Oct 2013 15:31:26 +0100
Subject: ASoC: wm5110: Add missing routes for AEC Loopback

Reported-by: Nariman Poushin <nariman.poushin@wolfsonmicro.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm5110.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/sound/soc/codecs/wm5110.c b/sound/soc/codecs/wm5110.c
index bbd64384ca1c..8c91be5d67e3 100644
--- a/sound/soc/codecs/wm5110.c
+++ b/sound/soc/codecs/wm5110.c
@@ -983,24 +983,36 @@ static const struct snd_soc_dapm_route wm5110_dapm_routes[] = {
 	ARIZONA_MUX_ROUTES("ASRC2L", "ASRC2L"),
 	ARIZONA_MUX_ROUTES("ASRC2R", "ASRC2R"),
 
+	{ "AEC Loopback", "HPOUT1L", "OUT1L" },
+	{ "AEC Loopback", "HPOUT1R", "OUT1R" },
 	{ "HPOUT1L", NULL, "OUT1L" },
 	{ "HPOUT1R", NULL, "OUT1R" },
 
+	{ "AEC Loopback", "HPOUT2L", "OUT2L" },
+	{ "AEC Loopback", "HPOUT2R", "OUT2R" },
 	{ "HPOUT2L", NULL, "OUT2L" },
 	{ "HPOUT2R", NULL, "OUT2R" },
 
+	{ "AEC Loopback", "HPOUT3L", "OUT3L" },
+	{ "AEC Loopback", "HPOUT3R", "OUT3R" },
 	{ "HPOUT3L", NULL, "OUT3L" },
 	{ "HPOUT3R", NULL, "OUT3L" },
 
+	{ "AEC Loopback", "SPKOUTL", "OUT4L" },
 	{ "SPKOUTLN", NULL, "OUT4L" },
 	{ "SPKOUTLP", NULL, "OUT4L" },
 
+	{ "AEC Loopback", "SPKOUTR", "OUT4R" },
 	{ "SPKOUTRN", NULL, "OUT4R" },
 	{ "SPKOUTRP", NULL, "OUT4R" },
 
+	{ "AEC Loopback", "SPKDAT1L", "OUT5L" },
+	{ "AEC Loopback", "SPKDAT1R", "OUT5R" },
 	{ "SPKDAT1L", NULL, "OUT5L" },
 	{ "SPKDAT1R", NULL, "OUT5R" },
 
+	{ "AEC Loopback", "SPKDAT2L", "OUT6L" },
+	{ "AEC Loopback", "SPKDAT2R", "OUT6R" },
 	{ "SPKDAT2L", NULL, "OUT6L" },
 	{ "SPKDAT2R", NULL, "OUT6R" },
 
-- 
cgit 


From 3d8f7318f929f3b84571ffac2ef7bf8bddfb6d41 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 25 Oct 2013 17:29:25 +0800
Subject: ASoC: fsl_spdif: fix return value check in fsl_spdif_probe()

In case of error, the function platform_get_resource() returns NULL
pointer not ERR_PTR(). The IS_ERR() test in the return value check
should be replaced with NULL test.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/fsl_spdif.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index c0fea02114e1..e1bf5ef31bdd 100644
--- a/sound/soc/fsl/fsl_spdif.c
+++ b/sound/soc/fsl/fsl_spdif.c
@@ -1107,9 +1107,9 @@ static int fsl_spdif_probe(struct platform_device *pdev)
 
 	/* Get the addresses and IRQ */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (IS_ERR(res)) {
+	if (!res) {
 		dev_err(&pdev->dev, "could not determine device resources\n");
-		return PTR_ERR(res);
+		return -ENXIO;
 	}
 
 	regs = devm_ioremap_resource(&pdev->dev, res);
-- 
cgit 


From 5278aa52f35003ddafda80b0243b3693f935b134 Mon Sep 17 00:00:00 2001
From: Mimi Zohar <zohar@linux.vnet.ibm.com>
Date: Fri, 7 Jun 2013 12:16:38 +0200
Subject: ima: add audit log support for larger hashes

Different files might be signed based on different hash algorithms.
This patch prefixes the audit log measurement hash with the hash
algorithm.

Changelog:
- use generic HASH_ALGO defintions
- use ':' as delimiter between the hash algorithm and the digest
  (Roberto Sassu)
- always include the hash algorithm used when audit-logging a measurement

Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Peter Moody <pmoody@google.com>
---
 security/integrity/ima/ima_api.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index baa348179527..5fcc80695d87 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -270,6 +270,8 @@ void ima_audit_measurement(struct integrity_iint_cache *iint,
 {
 	struct audit_buffer *ab;
 	char hash[(iint->ima_hash->length * 2) + 1];
+	const char *algo_name = hash_algo_name[iint->ima_hash->algo];
+	char algo_hash[sizeof(hash) + strlen(algo_name) + 2];
 	int i;
 
 	if (iint->flags & IMA_AUDITED)
@@ -287,7 +289,8 @@ void ima_audit_measurement(struct integrity_iint_cache *iint,
 	audit_log_format(ab, "file=");
 	audit_log_untrustedstring(ab, filename);
 	audit_log_format(ab, " hash=");
-	audit_log_untrustedstring(ab, hash);
+	snprintf(algo_hash, sizeof(algo_hash), "%s:%s", algo_name, hash);
+	audit_log_untrustedstring(ab, algo_hash);
 
 	audit_log_task_info(ab, current);
 	audit_log_end(ab);
-- 
cgit 


From add1c05dceb495a45036d66cdcbb3b2306de26c1 Mon Sep 17 00:00:00 2001
From: Roberto Sassu <roberto.sassu@polito.it>
Date: Fri, 7 Jun 2013 12:16:39 +0200
Subject: ima: defer determining the appraisal hash algorithm for 'ima'
 template

The same hash algorithm should be used for calculating the file
data hash for the IMA measurement list, as for appraising the file
data integrity.  (The appraise hash algorithm is stored in the
'security.ima' extended attribute.)  The exception is when the
reference file data hash digest, stored in the extended attribute,
is larger than the one supported by the template.  In this case,
the file data hash needs to be calculated twice, once for the
measurement list and, again, for appraisal.

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 security/integrity/ima/ima_main.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 5e8b1f7becd2..0b11bb49ac4f 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -145,6 +145,7 @@ static int process_measurement(struct file *file, const char *filename,
 {
 	struct inode *inode = file_inode(file);
 	struct integrity_iint_cache *iint;
+	struct ima_template_desc *template_desc = ima_template_desc_current();
 	char *pathbuf = NULL;
 	const char *pathname = NULL;
 	int rc = -ENOMEM, action, must_appraise, _func;
@@ -188,7 +189,10 @@ static int process_measurement(struct file *file, const char *filename,
 		goto out_digsig;
 	}
 
-	if (action & IMA_APPRAISE_SUBMASK)
+	if (strcmp(template_desc->name, IMA_TEMPLATE_IMA_NAME) == 0) {
+		if (action & IMA_APPRAISE_SUBMASK)
+			xattr_ptr = &xattr_value;
+	} else
 		xattr_ptr = &xattr_value;
 
 	rc = ima_collect_measurement(iint, file, xattr_ptr, &xattr_len);
-- 
cgit 


From 4286587dccd43d4f81fa227e413ed7e909895342 Mon Sep 17 00:00:00 2001
From: Mimi Zohar <zohar@linux.vnet.ibm.com>
Date: Fri, 7 Jun 2013 12:16:34 +0200
Subject: ima: add Kconfig default measurement list template

This patch adds a Kconfig option to select the default IMA
measurement list template.  The 'ima' template limited the
filedata hash to 20 bytes and the pathname to 255 charaters.
The 'ima-ng' measurement list template permits larger hash
digests and longer pathnames.

Changelog:
- keep 'select CRYPTO_HASH_INFO' in 'config IMA' section (Kconfig)
  (Roberto Sassu);
- removed trailing whitespaces (Roberto Sassu).
- Lindent fixes

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
---
 security/integrity/ima/Kconfig        | 25 +++++++++++++++++++++++++
 security/integrity/ima/ima_template.c |  4 ++--
 2 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig
index e6628e783df1..de26cc873ae6 100644
--- a/security/integrity/ima/Kconfig
+++ b/security/integrity/ima/Kconfig
@@ -46,6 +46,31 @@ config IMA_LSM_RULES
 	help
 	  Disabling this option will disregard LSM based policy rules.
 
+choice
+	prompt "Default template"
+	default IMA_NG_TEMPLATE
+	depends on IMA
+	help
+	  Select the default IMA measurement template.
+
+	  The original 'ima' measurement list template contains a
+	  hash, defined as 20 bytes, and a null terminated pathname,
+	  limited to 255 characters.  The 'ima-ng' measurement list
+	  template permits both larger hash digests and longer
+	  pathnames.
+
+	config IMA_TEMPLATE
+		bool "ima"
+	config IMA_NG_TEMPLATE
+		bool "ima-ng (default)"
+endchoice
+
+config IMA_DEFAULT_TEMPLATE
+	string
+	depends on IMA
+	default "ima" if IMA_TEMPLATE
+	default "ima-ng" if IMA_NG_TEMPLATE
+
 config IMA_APPRAISE
 	bool "Appraise integrity measurements"
 	depends on IMA
diff --git a/security/integrity/ima/ima_template.c b/security/integrity/ima/ima_template.c
index 1c4cf194592c..c28ff9bf8f32 100644
--- a/security/integrity/ima/ima_template.c
+++ b/security/integrity/ima/ima_template.c
@@ -127,8 +127,8 @@ static int init_defined_templates(void)
 struct ima_template_desc *ima_template_desc_current(void)
 {
 	if (!ima_template)
-		ima_template = lookup_template_desc(IMA_TEMPLATE_IMA_NAME);
-
+		ima_template =
+		    lookup_template_desc(CONFIG_IMA_DEFAULT_TEMPLATE);
 	return ima_template;
 }
 
-- 
cgit 


From 9b9d4ce592d283fc4c01da746c02a840c499bb7e Mon Sep 17 00:00:00 2001
From: Roberto Sassu <roberto.sassu@polito.it>
Date: Fri, 7 Jun 2013 12:16:35 +0200
Subject: ima: define kernel parameter 'ima_template=' to change configured
 default

This patch allows users to specify from the kernel command line the
template descriptor, among those defined, that will be used to generate
and display measurement entries. If an user specifies a wrong template,
IMA reverts to the template descriptor set in the kernel configuration.

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 Documentation/kernel-parameters.txt   |  5 +++++
 security/integrity/ima/ima_template.c | 31 +++++++++++++++++++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 1a036cd972fb..2b78cb55ac34 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1190,6 +1190,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			programs exec'd, files mmap'd for exec, and all files
 			opened for read by uid=0.
 
+	ima_template=   [IMA]
+			Select one of defined IMA measurements template formats.
+			Formats: { "ima" | "ima-ng" }
+			Default: "ima-ng"
+
 	init=		[KNL]
 			Format: <full_path>
 			Run specified binary instead of /sbin/init as init
diff --git a/security/integrity/ima/ima_template.c b/security/integrity/ima/ima_template.c
index c28ff9bf8f32..000221419f6c 100644
--- a/security/integrity/ima/ima_template.c
+++ b/security/integrity/ima/ima_template.c
@@ -12,6 +12,8 @@
  * File: ima_template.c
  *      Helpers to manage template descriptors.
  */
+#include <crypto/hash_info.h>
+
 #include "ima.h"
 #include "ima_template_lib.h"
 
@@ -32,6 +34,35 @@ static struct ima_template_field supported_fields[] = {
 };
 
 static struct ima_template_desc *ima_template;
+static struct ima_template_desc *lookup_template_desc(const char *name);
+
+static int __init ima_template_setup(char *str)
+{
+	struct ima_template_desc *template_desc;
+	int template_len = strlen(str);
+
+	/*
+	 * Verify that a template with the supplied name exists.
+	 * If not, use CONFIG_IMA_DEFAULT_TEMPLATE.
+	 */
+	template_desc = lookup_template_desc(str);
+	if (!template_desc)
+		return 1;
+
+	/*
+	 * Verify whether the current hash algorithm is supported
+	 * by the 'ima' template.
+	 */
+	if (template_len == 3 && strcmp(str, IMA_TEMPLATE_IMA_NAME) == 0 &&
+	    ima_hash_algo != HASH_ALGO_SHA1 && ima_hash_algo != HASH_ALGO_MD5) {
+		pr_err("IMA: template does not support hash alg\n");
+		return 1;
+	}
+
+	ima_template = template_desc;
+	return 1;
+}
+__setup("ima_template=", ima_template_setup);
 
 static struct ima_template_desc *lookup_template_desc(const char *name)
 {
-- 
cgit 


From e7a2ad7eb6f48ad80c70a22dd8167fb34b409466 Mon Sep 17 00:00:00 2001
From: Mimi Zohar <zohar@linux.vnet.ibm.com>
Date: Fri, 7 Jun 2013 12:16:37 +0200
Subject: ima: enable support for larger default filedata hash algorithms

The IMA measurement list contains two hashes - a template data hash
and a filedata hash.  The template data hash is committed to the TPM,
which is limited, by the TPM v1.2 specification, to 20 bytes.  The
filedata hash is defined as 20 bytes as well.

Now that support for variable length measurement list templates was
added, the filedata hash is not limited to 20 bytes.  This patch adds
Kconfig support for defining larger default filedata hash algorithms
and replacing the builtin default with one specified on the kernel
command line.

<uapi/linux/hash_info.h> contains a list of hash algorithms.  The
Kconfig default hash algorithm is a subset of this list, but any hash
algorithm included in the list can be specified at boot, using the
'ima_hash=' kernel command line option.

Changelog v2:
- update Kconfig

Changelog:
- support hashes that are configured
- use generic HASH_ALGO_ definitions
- add Kconfig support
- hash_setup must be called only once (Dmitry)
- removed trailing whitespaces (Roberto Sassu)

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
---
 Documentation/kernel-parameters.txt |  6 +++++-
 security/integrity/ima/Kconfig      | 35 +++++++++++++++++++++++++++++++++++
 security/integrity/ima/ima_main.c   | 26 ++++++++++++++++++++++++--
 3 files changed, 64 insertions(+), 3 deletions(-)

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 2b78cb55ac34..1e8761c89a2c 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1181,9 +1181,13 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			owned by uid=0.
 
 	ima_hash=	[IMA]
-			Format: { "sha1" | "md5" }
+			Format: { md5 | sha1 | rmd160 | sha256 | sha384
+				   | sha512 | ... }
 			default: "sha1"
 
+			The list of supported hash algorithms is defined
+			in crypto/hash_info.h.
+
 	ima_tcb		[IMA]
 			Load a policy which meets the needs of the Trusted
 			Computing Base.  This means IMA will measure all
diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig
index de26cc873ae6..351a58ed56ab 100644
--- a/security/integrity/ima/Kconfig
+++ b/security/integrity/ima/Kconfig
@@ -71,6 +71,41 @@ config IMA_DEFAULT_TEMPLATE
 	default "ima" if IMA_TEMPLATE
 	default "ima-ng" if IMA_NG_TEMPLATE
 
+choice
+	prompt "Default integrity hash algorithm"
+	default IMA_DEFAULT_HASH_SHA1
+	depends on IMA
+	help
+	   Select the default hash algorithm used for the measurement
+	   list, integrity appraisal and audit log.  The compiled default
+	   hash algorithm can be overwritten using the kernel command
+	   line 'ima_hash=' option.
+
+	config IMA_DEFAULT_HASH_SHA1
+		bool "SHA1 (default)"
+		depends on CRYPTO_SHA1
+
+	config IMA_DEFAULT_HASH_SHA256
+		bool "SHA256"
+		depends on CRYPTO_SHA256 && !IMA_TEMPLATE
+
+	config IMA_DEFAULT_HASH_SHA512
+		bool "SHA512"
+		depends on CRYPTO_SHA512 && !IMA_TEMPLATE
+
+	config IMA_DEFAULT_HASH_WP512
+		bool "WP512"
+		depends on CRYPTO_WP512 && !IMA_TEMPLATE
+endchoice
+
+config IMA_DEFAULT_HASH
+	string
+	depends on IMA
+	default "sha1" if IMA_DEFAULT_HASH_SHA1
+	default "sha256" if IMA_DEFAULT_HASH_SHA256
+	default "sha512" if IMA_DEFAULT_HASH_SHA512
+	default "wp512" if IMA_DEFAULT_HASH_WP512
+
 config IMA_APPRAISE
 	bool "Appraise integrity measurements"
 	depends on IMA
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 0b11bb49ac4f..14d4cb557894 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -37,11 +37,32 @@ int ima_appraise;
 #endif
 
 int ima_hash_algo = HASH_ALGO_SHA1;
+static int hash_setup_done;
 
 static int __init hash_setup(char *str)
 {
-	if (strncmp(str, "md5", 3) == 0)
-		ima_hash_algo = HASH_ALGO_MD5;
+	struct ima_template_desc *template_desc = ima_template_desc_current();
+	int i;
+
+	if (hash_setup_done)
+		return 1;
+
+	if (strcmp(template_desc->name, IMA_TEMPLATE_IMA_NAME) == 0) {
+		if (strncmp(str, "sha1", 4) == 0)
+			ima_hash_algo = HASH_ALGO_SHA1;
+		else if (strncmp(str, "md5", 3) == 0)
+			ima_hash_algo = HASH_ALGO_MD5;
+		goto out;
+	}
+
+	for (i = 0; i < HASH_ALGO__LAST; i++) {
+		if (strcmp(str, hash_algo_name[i]) == 0) {
+			ima_hash_algo = i;
+			break;
+		}
+	}
+out:
+	hash_setup_done = 1;
 	return 1;
 }
 __setup("ima_hash=", hash_setup);
@@ -306,6 +327,7 @@ static int __init init_ima(void)
 {
 	int error;
 
+	hash_setup(CONFIG_IMA_DEFAULT_HASH);
 	error = ima_init();
 	if (!error)
 		ima_initialized = 1;
-- 
cgit 


From 3ea7a56067e663278470c04fd655adf809e72d4d Mon Sep 17 00:00:00 2001
From: Dmitry Kasatkin <d.kasatkin@samsung.com>
Date: Mon, 12 Aug 2013 11:22:51 +0300
Subject: ima: provide hash algo info in the xattr

All files labeled with 'security.ima' hashes, are hashed using the
same hash algorithm.  Changing from one hash algorithm to another,
requires relabeling the filesystem.  This patch defines a new xattr
type, which includes the hash algorithm, permitting different files
to be hashed with different algorithms.

Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 security/integrity/ima/ima_appraise.c | 61 +++++++++++++++++++++++++++--------
 security/integrity/integrity.h        | 13 +++++++-
 2 files changed, 59 insertions(+), 15 deletions(-)

diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c
index 116630ca5ff3..734e9468aca0 100644
--- a/security/integrity/ima/ima_appraise.c
+++ b/security/integrity/ima/ima_appraise.c
@@ -15,6 +15,7 @@
 #include <linux/magic.h>
 #include <linux/ima.h>
 #include <linux/evm.h>
+#include <crypto/hash_info.h>
 
 #include "ima.h"
 
@@ -45,10 +46,22 @@ int ima_must_appraise(struct inode *inode, int mask, enum ima_hooks func)
 static int ima_fix_xattr(struct dentry *dentry,
 			 struct integrity_iint_cache *iint)
 {
-	iint->ima_hash->type = IMA_XATTR_DIGEST;
-	return __vfs_setxattr_noperm(dentry, XATTR_NAME_IMA,
-				     &iint->ima_hash->type,
-				     1 + iint->ima_hash->length, 0);
+	int rc, offset;
+	u8 algo = iint->ima_hash->algo;
+
+	if (algo <= HASH_ALGO_SHA1) {
+		offset = 1;
+		iint->ima_hash->xattr.sha1.type = IMA_XATTR_DIGEST;
+	} else {
+		offset = 0;
+		iint->ima_hash->xattr.ng.type = IMA_XATTR_DIGEST_NG;
+		iint->ima_hash->xattr.ng.algo = algo;
+	}
+	rc = __vfs_setxattr_noperm(dentry, XATTR_NAME_IMA,
+				   &iint->ima_hash->xattr.data[offset],
+				   (sizeof(iint->ima_hash->xattr) - offset) +
+				   iint->ima_hash->length, 0);
+	return rc;
 }
 
 /* Return specific func appraised cached result */
@@ -112,15 +125,31 @@ void ima_get_hash_algo(struct evm_ima_xattr_data *xattr_value, int xattr_len,
 {
 	struct signature_v2_hdr *sig;
 
-	if (!xattr_value || xattr_len < 0 || xattr_len <= 1 + sizeof(*sig))
+	if (!xattr_value || xattr_len < 2)
 		return;
 
-	sig = (typeof(sig)) xattr_value->digest;
-
-	if (xattr_value->type != EVM_IMA_XATTR_DIGSIG || sig->version != 2)
-		return;
-
-	hash->algo = sig->hash_algo;
+	switch (xattr_value->type) {
+	case EVM_IMA_XATTR_DIGSIG:
+		sig = (typeof(sig))xattr_value;
+		if (sig->version != 2 || xattr_len <= sizeof(*sig))
+			return;
+		hash->algo = sig->hash_algo;
+		break;
+	case IMA_XATTR_DIGEST_NG:
+		hash->algo = xattr_value->digest[0];
+		break;
+	case IMA_XATTR_DIGEST:
+		/* this is for backward compatibility */
+		if (xattr_len == 21) {
+			unsigned int zero = 0;
+			if (!memcmp(&xattr_value->digest[16], &zero, 4))
+				hash->algo = HASH_ALGO_MD5;
+			else
+				hash->algo = HASH_ALGO_SHA1;
+		} else if (xattr_len == 17)
+			hash->algo = HASH_ALGO_MD5;
+		break;
+	}
 }
 
 int ima_read_xattr(struct dentry *dentry,
@@ -153,7 +182,7 @@ int ima_appraise_measurement(int func, struct integrity_iint_cache *iint,
 	enum integrity_status status = INTEGRITY_UNKNOWN;
 	const char *op = "appraise_data";
 	char *cause = "unknown";
-	int rc = xattr_len;
+	int rc = xattr_len, hash_start = 0;
 
 	if (!ima_appraise)
 		return 0;
@@ -180,17 +209,21 @@ int ima_appraise_measurement(int func, struct integrity_iint_cache *iint,
 		goto out;
 	}
 	switch (xattr_value->type) {
+	case IMA_XATTR_DIGEST_NG:
+		/* first byte contains algorithm id */
+		hash_start = 1;
 	case IMA_XATTR_DIGEST:
 		if (iint->flags & IMA_DIGSIG_REQUIRED) {
 			cause = "IMA signature required";
 			status = INTEGRITY_FAIL;
 			break;
 		}
-		if (xattr_len - 1 >= iint->ima_hash->length)
+		if (xattr_len - sizeof(xattr_value->type) - hash_start >=
+				iint->ima_hash->length)
 			/* xattr length may be longer. md5 hash in previous
 			   version occupied 20 bytes in xattr, instead of 16
 			 */
-			rc = memcmp(xattr_value->digest,
+			rc = memcmp(&xattr_value->digest[hash_start],
 				    iint->ima_hash->digest,
 				    iint->ima_hash->length);
 		else
diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h
index 5429ca59125b..2fb5e53e927f 100644
--- a/security/integrity/integrity.h
+++ b/security/integrity/integrity.h
@@ -54,6 +54,7 @@ enum evm_ima_xattr_type {
 	IMA_XATTR_DIGEST = 0x01,
 	EVM_XATTR_HMAC,
 	EVM_IMA_XATTR_DIGSIG,
+	IMA_XATTR_DIGEST_NG,
 };
 
 struct evm_ima_xattr_data {
@@ -66,7 +67,17 @@ struct evm_ima_xattr_data {
 struct ima_digest_data {
 	u8 algo;
 	u8 length;
-	u8 type;
+	union {
+		struct {
+			u8 unused;
+			u8 type;
+		} sha1;
+		struct {
+			u8 type;
+			u8 algo;
+		} ng;
+		u8 data[2];
+	} xattr;
 	u8 digest[0];
 } __packed;
 
-- 
cgit 


From 1e27138bae529a219f5213fdf60900fae7fec1b9 Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Sun, 20 Oct 2013 22:53:49 -0700
Subject: staging: lustre: Remove typedef and update cfs_hash_bucket struct

Remove typedef keyword and rename the cfs_hash_bucket_t struct to
cfs_hash_bucket in libcfs_hash.h. These changes resolve the
"Do not add new typedefs" warning generated by checkpatch.pl and
meet kernel coding style.

The struct variables in hash.c are updated to reflect this change
as well.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../lustre/include/linux/libcfs/libcfs_hash.h      | 12 ++++++------
 drivers/staging/lustre/lustre/libcfs/hash.c        | 22 +++++++++++-----------
 2 files changed, 17 insertions(+), 17 deletions(-)

diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
index b06505d8620d..26c10d985dd3 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
@@ -97,20 +97,20 @@ union cfs_hash_lock {
  *   which depends on requirement of user
  * - some extra bytes (caller can require it while creating hash)
  */
-typedef struct cfs_hash_bucket {
+struct cfs_hash_bucket {
 	union cfs_hash_lock	hsb_lock;	/**< bucket lock */
 	__u32			hsb_count;	/**< current entries */
 	__u32			hsb_version;	/**< change version */
 	unsigned int		hsb_index;	/**< index of bucket */
 	int			hsb_depmax;	/**< max depth on bucket */
 	long			hsb_head[0];	/**< hash-head array */
-} cfs_hash_bucket_t;
+};
 
 /**
  * cfs_hash bucket descriptor, it's normally in stack of caller
  */
 typedef struct cfs_hash_bd {
-	cfs_hash_bucket_t	  *bd_bucket;      /**< address of bucket */
+	struct cfs_hash_bucket	*bd_bucket;      /**< address of bucket */
 	unsigned int		bd_offset;      /**< offset in bucket */
 } cfs_hash_bd_t;
 
@@ -221,7 +221,7 @@ typedef struct cfs_hash {
 	/** hash list operations */
 	struct cfs_hash_hlist_ops  *hs_hops;
 	/** hash buckets-table */
-	cfs_hash_bucket_t	 **hs_buckets;
+	struct cfs_hash_bucket	 **hs_buckets;
 	/** total number of items on this hash-table */
 	atomic_t		hs_count;
 	/** hash flags, see cfs_hash_tag for detail */
@@ -255,7 +255,7 @@ typedef struct cfs_hash {
 	/** refcount on this hash table */
 	atomic_t		hs_refcount;
 	/** rehash buckets-table */
-	cfs_hash_bucket_t	 **hs_rehash_buckets;
+	struct cfs_hash_bucket	 **hs_rehash_buckets;
 #if CFS_HASH_DEBUG_LEVEL >= CFS_HASH_DEBUG_1
 	/** serialize debug members */
 	spinlock_t			hs_dep_lock;
@@ -451,7 +451,7 @@ cfs_hash_is_iterating(cfs_hash_t *hs)
 static inline int
 cfs_hash_bkt_size(cfs_hash_t *hs)
 {
-	return offsetof(cfs_hash_bucket_t, hsb_head[0]) +
+	return offsetof(struct cfs_hash_bucket, hsb_head[0]) +
 	       hs->hs_hops->hop_hhead_size(hs) * CFS_HASH_BKT_NHLIST(hs) +
 	       hs->hs_extra_bytes;
 }
diff --git a/drivers/staging/lustre/lustre/libcfs/hash.c b/drivers/staging/lustre/lustre/libcfs/hash.c
index b0b8e3f81d51..c3cb1c0b04d5 100644
--- a/drivers/staging/lustre/lustre/libcfs/hash.c
+++ b/drivers/staging/lustre/lustre/libcfs/hash.c
@@ -469,7 +469,7 @@ cfs_hash_hlist_setup(cfs_hash_t *hs)
 }
 
 static void
-cfs_hash_bd_from_key(cfs_hash_t *hs, cfs_hash_bucket_t **bkts,
+cfs_hash_bd_from_key(cfs_hash_t *hs, struct cfs_hash_bucket **bkts,
 		     unsigned int bits, const void *key, cfs_hash_bd_t *bd)
 {
 	unsigned int index = cfs_hash_id(hs, key, (1U << bits) - 1);
@@ -563,8 +563,8 @@ void
 cfs_hash_bd_move_locked(cfs_hash_t *hs, cfs_hash_bd_t *bd_old,
 			cfs_hash_bd_t *bd_new, struct hlist_node *hnode)
 {
-	cfs_hash_bucket_t *obkt = bd_old->bd_bucket;
-	cfs_hash_bucket_t *nbkt = bd_new->bd_bucket;
+	struct cfs_hash_bucket *obkt = bd_old->bd_bucket;
+	struct cfs_hash_bucket *nbkt = bd_new->bd_bucket;
 	int		rc;
 
 	if (cfs_hash_bd_compare(bd_old, bd_new) == 0)
@@ -698,7 +698,7 @@ static void
 cfs_hash_multi_bd_lock(cfs_hash_t *hs, cfs_hash_bd_t *bds,
 		       unsigned n, int excl)
 {
-	cfs_hash_bucket_t *prev = NULL;
+	struct cfs_hash_bucket *prev = NULL;
 	int		i;
 
 	/**
@@ -721,7 +721,7 @@ static void
 cfs_hash_multi_bd_unlock(cfs_hash_t *hs, cfs_hash_bd_t *bds,
 			 unsigned n, int excl)
 {
-	cfs_hash_bucket_t *prev = NULL;
+	struct cfs_hash_bucket *prev = NULL;
 	int		i;
 
 	cfs_hash_for_each_bd(bds, n, i) {
@@ -884,7 +884,7 @@ cfs_hash_dual_bd_finddel_locked(cfs_hash_t *hs, cfs_hash_bd_t *bds,
 EXPORT_SYMBOL(cfs_hash_dual_bd_finddel_locked);
 
 static void
-cfs_hash_buckets_free(cfs_hash_bucket_t **buckets,
+cfs_hash_buckets_free(struct cfs_hash_bucket **buckets,
 		      int bkt_size, int prev_size, int size)
 {
 	int     i;
@@ -902,11 +902,11 @@ cfs_hash_buckets_free(cfs_hash_bucket_t **buckets,
  * needed, the newly allocated buckets if allocation was needed and
  * successful, and NULL on error.
  */
-static cfs_hash_bucket_t **
-cfs_hash_buckets_realloc(cfs_hash_t *hs, cfs_hash_bucket_t **old_bkts,
+static struct cfs_hash_bucket **
+cfs_hash_buckets_realloc(cfs_hash_t *hs, struct cfs_hash_bucket **old_bkts,
 			 unsigned int old_size, unsigned int new_size)
 {
-	cfs_hash_bucket_t **new_bkts;
+	struct cfs_hash_bucket **new_bkts;
 	int		 i;
 
 	LASSERT(old_size == 0 || old_bkts != NULL);
@@ -1874,7 +1874,7 @@ static int
 cfs_hash_rehash_worker(cfs_workitem_t *wi)
 {
 	cfs_hash_t	 *hs = container_of(wi, cfs_hash_t, hs_rehash_wi);
-	cfs_hash_bucket_t **bkts;
+	struct cfs_hash_bucket **bkts;
 	cfs_hash_bd_t       bd;
 	unsigned int	old_size;
 	unsigned int	new_size;
@@ -2028,7 +2028,7 @@ int cfs_hash_debug_header(struct seq_file *m)
 }
 EXPORT_SYMBOL(cfs_hash_debug_header);
 
-static cfs_hash_bucket_t **
+static struct cfs_hash_bucket **
 cfs_hash_full_bkts(cfs_hash_t *hs)
 {
 	/* NB: caller should hold hs->hs_rwlock if REHASH is set */
-- 
cgit 


From 86bac591def1a5b7060c0834828b1eaabfe7f0a7 Mon Sep 17 00:00:00 2001
From: Peng Tao <bergwolf@gmail.com>
Date: Mon, 21 Oct 2013 23:18:22 +0800
Subject: lustre/fld: remove fld_thread_key

It is left over when porting Lustre tree patch in commit (e62e5d92) and should be
removed.

Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/fld/fld_request.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/staging/lustre/lustre/fld/fld_request.c b/drivers/staging/lustre/lustre/fld/fld_request.c
index 078e98bda684..e47fd50b2a2e 100644
--- a/drivers/staging/lustre/lustre/fld/fld_request.c
+++ b/drivers/staging/lustre/lustre/fld/fld_request.c
@@ -59,8 +59,6 @@
 #include <lustre_mdc.h>
 #include "fld_internal.h"
 
-struct lu_context_key fld_thread_key;
-
 /* TODO: these 3 functions are copies of flow-control code from mdc_lib.c
  * It should be common thing. The same about mdc RPC lock */
 static int fld_req_avail(struct client_obd *cli, struct mdc_cache_waiter *mcw)
@@ -509,14 +507,11 @@ static int __init fld_mod_init(void)
 	if (IS_ERR(fld_type_proc_dir))
 		return PTR_ERR(fld_type_proc_dir);
 
-	LU_CONTEXT_KEY_INIT(&fld_thread_key);
-	lu_context_key_register(&fld_thread_key);
 	return 0;
 }
 
 static void __exit fld_mod_exit(void)
 {
-	lu_context_key_degister(&fld_thread_key);
 	if (fld_type_proc_dir != NULL && !IS_ERR(fld_type_proc_dir)) {
 		lprocfs_remove(&fld_type_proc_dir);
 		fld_type_proc_dir = NULL;
-- 
cgit 


From 363090e74f3865c589f4026b40865596b0212f90 Mon Sep 17 00:00:00 2001
From: Peng Tao <bergwolf@gmail.com>
Date: Mon, 21 Oct 2013 23:18:23 +0800
Subject: staging/lustre/llite: fix mkdir endless loop

Running on 3.11-rc4 kernel, I got below endless loop. It turns to be that Lustre
always saves the first page of a dir inode mapping at index ~0UL.  And after
commit 5a720394 (mm: teach truncate_inode_pages_range() to handle non page
aligned ranges), truncate_inode_pages_range() _NO LONGER_ truncates the page
that is sitting at index ~0UL.

[16768.998006] mkdir           R  running task        0  2717   2716 0x00000080
[16768.998073]  000000000000000e 0000000000000000 0000000000000000 ffff88000be00460
[16768.998157]  ffff88000ea65908 ffffffff810fec3e ffff88000ea65968 ffff8800229e7750
[16768.998241]  ffff88000ea658b8 0000000000000000 0000000000000000 ffff88000ea65958
[16768.998326] Call Trace:
[16768.998401]  [<ffffffff810fc6ed>] ? rcu_read_unlock+0x1c/0x2d
[16768.998473]  [<ffffffff810fec3e>] ? find_get_pages+0xf5/0x11b
[16768.998530]  [<ffffffff811078f0>] ? pagevec_lookup+0x20/0x2a
[16768.998586]  [<ffffffff8110920e>] ? truncate_inode_pages_range.part.2+0x161/0x39a
[16768.998680]  [<ffffffffa02ad5dc>] ? ll_md_blocking_ast+0x338/0x62f [lustre]
[16768.998744]  [<ffffffff8110947f>] ? truncate_inode_pages_range+0x38/0x3f
[16768.998805]  [<ffffffff811094f8>] ? truncate_inode_pages+0x12/0x14
[16768.998871]  [<ffffffffa02ad6e8>] ? ll_md_blocking_ast+0x444/0x62f [lustre]
[16768.998948]  [<ffffffff810981b5>] ? arch_local_irq_save+0x9/0xc
[16768.999022]  [<ffffffffa07ee0e8>] ? ldlm_cancel_callback+0x67/0x12a [ptlrpc]
[16768.999100]  [<ffffffffa07f85b2>] ? ldlm_cli_cancel_local+0xf3/0x2bc [ptlrpc]
[16768.999176]  [<ffffffffa07f9163>] ? ldlm_cli_cancel_list_local+0x7e/0x1e4 [ptlrpc]
[16768.999268]  [<ffffffffa07f9473>] ? ldlm_cancel_resource_local+0x1aa/0x1b9 [ptlrpc]
[16768.999385]  [<ffffffffa0657bad>] ? mdc_resource_get_unused+0xf8/0x115 [mdc]
[16768.999472]  [<ffffffff8109c887>] ? trace_hardirqs_on+0xd/0xf
[16768.999533]  [<ffffffffa06583d8>] ? mdc_create+0x11e/0x4db [mdc]
[16768.999597]  [<ffffffff8152ed84>] ? mutex_unlock+0xe/0x10
[16768.999654]  [<ffffffffa0350e99>] ? lmv_create+0x355/0x3e9 [lmv]
[16768.999712]  [<ffffffff811553b7>] ? final_putname+0x35/0x39
[16768.999775]  [<ffffffffa02ae167>] ? ll_new_node+0x33b/0x3ff [lustre]
[16768.999841]  [<ffffffffa02ae62c>] ? ll_mkdir+0xf2/0x127 [lustre]
[16768.999897]  [<ffffffff81156996>] ? vfs_mkdir+0x84/0xc9
[16768.999961]  [<ffffffff81158cf8>] ? SyS_mkdirat+0x77/0xad
[16769.000014]  [<ffffffff81158d47>] ? SyS_mkdir+0x19/0x1b
[16769.000066]  [<ffffffff81538652>] ? system_call_fastpath+0x16/0x1b

Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/include/lustre_lite.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lustre/include/lustre_lite.h b/drivers/staging/lustre/lustre/include/lustre_lite.h
index 25f8bfaccef3..beccb5e4065f 100644
--- a/drivers/staging/lustre/lustre/include/lustre_lite.h
+++ b/drivers/staging/lustre/lustre/include/lustre_lite.h
@@ -139,7 +139,11 @@ static inline unsigned long hash_x_index(__u64 hash, int hash64)
 {
 	if (BITS_PER_LONG == 32 && hash64)
 		hash >>= 32;
-	return ~0UL - hash;
+	/* save hash 0 as index 0 because otherwise we'll save it at
+	 * page index end (~0UL) and it causes truncate_inode_pages_range()
+	 * to loop forever.
+	 */
+	return ~0UL - (hash + !hash);
 }
 
 /** @} lite */
-- 
cgit 


From 996adff883a8c2c81d7beaed9656a1235b6451d6 Mon Sep 17 00:00:00 2001
From: Peng Tao <bergwolf@gmail.com>
Date: Mon, 21 Oct 2013 23:18:24 +0800
Subject: staging/lustre: fix tv_usec build warning on parisc

As reported by Fengguang:

config: make ARCH=parisc allyesconfig

All warnings:

   drivers/staging/lustre/lustre/llite/lproc_llite.c: In function 'll_rw_extents_stats_pp_seq_show':
>> drivers/staging/lustre/lustre/llite/lproc_llite.c:1069:6: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type '__kernel_suseconds_t' [-Wformat]
   drivers/staging/lustre/lustre/llite/lproc_llite.c: In function 'll_rw_extents_stats_seq_show':
>> drivers/staging/lustre/lustre/llite/lproc_llite.c:1133:6: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type '__kernel_suseconds_t' [-Wformat]
   drivers/staging/lustre/lustre/llite/lproc_llite.c: In function 'll_rw_offset_stats_seq_show':
>> drivers/staging/lustre/lustre/llite/lproc_llite.c:1299:6: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type '__kernel_suseconds_t' [-Wformat]
--
   drivers/staging/lustre/lustre/obdclass/lprocfs_status.c: In function 'lprocfs_stats_seq_show':
>> drivers/staging/lustre/lustre/obdclass/lprocfs_status.c:1070:5: warning: format '%lu' expects argument of type 'long unsigned int', but argument 5 has type '__kernel_suseconds_t' [-Wformat]
--
   drivers/staging/lustre/lustre/osc/lproc_osc.c: In function 'osc_rpc_stats_seq_show':
>> drivers/staging/lustre/lustre/osc/lproc_osc.c:575:6: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type '__kernel_suseconds_t' [-Wformat]
   drivers/staging/lustre/lustre/osc/lproc_osc.c: In function 'osc_stats_seq_show':
>> drivers/staging/lustre/lustre/osc/lproc_osc.c:687:6: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type '__kernel_suseconds_t' [-Wformat]

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/llite/lproc_llite.c       | 6 +++---
 drivers/staging/lustre/lustre/obdclass/lprocfs_status.c | 2 +-
 drivers/staging/lustre/lustre/osc/lproc_osc.c           | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/lustre/lustre/llite/lproc_llite.c b/drivers/staging/lustre/lustre/llite/lproc_llite.c
index d4d3c17547ca..4bf09c4a0c9d 100644
--- a/drivers/staging/lustre/lustre/llite/lproc_llite.c
+++ b/drivers/staging/lustre/lustre/llite/lproc_llite.c
@@ -1063,7 +1063,7 @@ static int ll_rw_extents_stats_pp_seq_show(struct seq_file *seq, void *v)
 		return 0;
 	}
 	seq_printf(seq, "snapshot_time:	 %lu.%lu (secs.usecs)\n",
-		   now.tv_sec, now.tv_usec);
+		   now.tv_sec, (unsigned long)now.tv_usec);
 	seq_printf(seq, "%15s %19s       | %20s\n", " ", "read", "write");
 	seq_printf(seq, "%13s   %14s %4s %4s  | %14s %4s %4s\n",
 		   "extents", "calls", "%", "cum%",
@@ -1127,7 +1127,7 @@ static int ll_rw_extents_stats_seq_show(struct seq_file *seq, void *v)
 		return 0;
 	}
 	seq_printf(seq, "snapshot_time:	 %lu.%lu (secs.usecs)\n",
-		   now.tv_sec, now.tv_usec);
+		   now.tv_sec, (unsigned long)now.tv_usec);
 
 	seq_printf(seq, "%15s %19s       | %20s\n", " ", "read", "write");
 	seq_printf(seq, "%13s   %14s %4s %4s  | %14s %4s %4s\n",
@@ -1293,7 +1293,7 @@ static int ll_rw_offset_stats_seq_show(struct seq_file *seq, void *v)
 	spin_lock(&sbi->ll_process_lock);
 
 	seq_printf(seq, "snapshot_time:	 %lu.%lu (secs.usecs)\n",
-		   now.tv_sec, now.tv_usec);
+		   now.tv_sec, (unsigned long)now.tv_usec);
 	seq_printf(seq, "%3s %10s %14s %14s %17s %17s %14s\n",
 		   "R/W", "PID", "RANGE START", "RANGE END",
 		   "SMALLEST EXTENT", "LARGEST EXTENT", "OFFSET");
diff --git a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
index a95f60a4f90e..76352c0cca7d 100644
--- a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
+++ b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
@@ -1069,7 +1069,7 @@ static int lprocfs_stats_seq_show(struct seq_file *p, void *v)
 		struct timeval now;
 		do_gettimeofday(&now);
 		rc = seq_printf(p, "%-25s %lu.%lu secs.usecs\n",
-				"snapshot_time", now.tv_sec, now.tv_usec);
+				"snapshot_time", now.tv_sec, (unsigned long)now.tv_usec);
 		if (rc < 0)
 			return rc;
 	}
diff --git a/drivers/staging/lustre/lustre/osc/lproc_osc.c b/drivers/staging/lustre/lustre/osc/lproc_osc.c
index 90d24d8dea21..ef10e2af787f 100644
--- a/drivers/staging/lustre/lustre/osc/lproc_osc.c
+++ b/drivers/staging/lustre/lustre/osc/lproc_osc.c
@@ -571,7 +571,7 @@ static int osc_rpc_stats_seq_show(struct seq_file *seq, void *v)
 	client_obd_list_lock(&cli->cl_loi_list_lock);
 
 	seq_printf(seq, "snapshot_time:	 %lu.%lu (secs.usecs)\n",
-		   now.tv_sec, now.tv_usec);
+		   now.tv_sec, (unsigned long)now.tv_usec);
 	seq_printf(seq, "read RPCs in flight:  %d\n",
 		   cli->cl_r_in_flight);
 	seq_printf(seq, "write RPCs in flight: %d\n",
@@ -683,7 +683,7 @@ static int osc_stats_seq_show(struct seq_file *seq, void *v)
 	do_gettimeofday(&now);
 
 	seq_printf(seq, "snapshot_time:	 %lu.%lu (secs.usecs)\n",
-		   now.tv_sec, now.tv_usec);
+		   now.tv_sec, (unsigned long)now.tv_usec);
 	seq_printf(seq, "lockless_write_bytes\t\t"LPU64"\n",
 		   stats->os_lockless_writes);
 	seq_printf(seq, "lockless_read_bytes\t\t"LPU64"\n",
-- 
cgit 


From a3ea59e0ee6ae2ade98081a9e81cb35f01509b6a Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Mon, 21 Oct 2013 18:15:39 -0700
Subject: staging: lustre: Remove typedef and update cfs_debug_limit_state
 struct

Removed typedef keyword and rename the cfs_debug_limit_state_t
struct to cfs_debug_limit_state in libcfs_debug.h. These changes
resolve the "Do not add new typedefs" warning generated by
checkpatch.pl and meet kernel coding style.

Struct variables in other header and source files
that depend on libcfs_debug.h are updated as well.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h | 8 ++++----
 drivers/staging/lustre/lustre/include/lustre_dlm.h         | 2 +-
 drivers/staging/lustre/lustre/include/lustre_net.h         | 2 +-
 drivers/staging/lustre/lustre/libcfs/tracefile.c           | 2 +-
 4 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h
index e6439d19f3e5..40282b70bd1b 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_debug.h
@@ -165,11 +165,11 @@ struct ptldebug_header {
 #define CDEBUG_DEFAULT_MAX_DELAY (cfs_time_seconds(600))	 /* jiffies */
 #define CDEBUG_DEFAULT_MIN_DELAY ((cfs_time_seconds(1) + 1) / 2) /* jiffies */
 #define CDEBUG_DEFAULT_BACKOFF   2
-typedef struct {
+struct cfs_debug_limit_state {
 	cfs_time_t      cdls_next;
 	unsigned int    cdls_delay;
 	int	     cdls_count;
-} cfs_debug_limit_state_t;
+};
 
 struct libcfs_debug_msg_data {
 	const char	       *msg_file;
@@ -177,7 +177,7 @@ struct libcfs_debug_msg_data {
 	int		      msg_subsys;
 	int		      msg_line;
 	int		      msg_mask;
-	cfs_debug_limit_state_t  *msg_cdls;
+	struct cfs_debug_limit_state  *msg_cdls;
 };
 
 #define LIBCFS_DEBUG_MSG_DATA_INIT(data, mask, cdls)	\
@@ -226,7 +226,7 @@ do {								    \
 
 #define CDEBUG_LIMIT(mask, format, ...)	 \
 do {					    \
-	static cfs_debug_limit_state_t cdls;    \
+	static struct cfs_debug_limit_state cdls;    \
 						\
 	__CDEBUG(&cdls, mask, format, ## __VA_ARGS__);\
 } while (0)
diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm.h b/drivers/staging/lustre/lustre/include/lustre_dlm.h
index 7020d9cd9eb2..122441f45a68 100644
--- a/drivers/staging/lustre/lustre/include/lustre_dlm.h
+++ b/drivers/staging/lustre/lustre/include/lustre_dlm.h
@@ -1083,7 +1083,7 @@ void _ldlm_lock_debug(struct ldlm_lock *lock,
  * Rate-limited version of lock printing function.
  */
 #define LDLM_DEBUG_LIMIT(mask, lock, fmt, a...) do {			 \
-	static cfs_debug_limit_state_t _ldlm_cdls;			   \
+	static struct cfs_debug_limit_state _ldlm_cdls;			   \
 	LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, mask, &_ldlm_cdls);	      \
 	ldlm_lock_debug(&msgdata, mask, &_ldlm_cdls, lock, "### " fmt , ##a);\
 } while (0)
diff --git a/drivers/staging/lustre/lustre/include/lustre_net.h b/drivers/staging/lustre/lustre/include/lustre_net.h
index e947002fae04..cf2b90d1d08b 100644
--- a/drivers/staging/lustre/lustre/include/lustre_net.h
+++ b/drivers/staging/lustre/lustre/include/lustre_net.h
@@ -2206,7 +2206,7 @@ do {									  \
 #define DEBUG_REQ(level, req, fmt, args...)				   \
 do {									  \
 	if ((level) & (D_ERROR | D_WARNING)) {				\
-		static cfs_debug_limit_state_t cdls;			  \
+		static struct cfs_debug_limit_state cdls;			  \
 		LIBCFS_DEBUG_MSG_DATA_DECL(msgdata, level, &cdls);	    \
 		debug_req(&msgdata, level, &cdls, req, "@@@ "fmt" ", ## args);\
 	} else {							      \
diff --git a/drivers/staging/lustre/lustre/libcfs/tracefile.c b/drivers/staging/lustre/lustre/libcfs/tracefile.c
index 357f40079ae0..f71a3cc63ad8 100644
--- a/drivers/staging/lustre/lustre/libcfs/tracefile.c
+++ b/drivers/staging/lustre/lustre/libcfs/tracefile.c
@@ -276,7 +276,7 @@ int libcfs_debug_vmsg2(struct libcfs_debug_msg_data *msgdata,
 	int			remain;
 	int			mask = msgdata->msg_mask;
 	const char		*file = kbasename(msgdata->msg_file);
-	cfs_debug_limit_state_t   *cdls = msgdata->msg_cdls;
+	struct cfs_debug_limit_state   *cdls = msgdata->msg_cdls;
 
 	tcd = cfs_trace_get_tcd();
 
-- 
cgit 


From 6ea510c18910e88c3ae99c03aaaf1c62919cb8e6 Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Mon, 21 Oct 2013 18:16:05 -0700
Subject: staging: lustre: Remove typedef and update cfs_hash_bd struct

Remove typedef keyword and rename the cfs_hash_bd_t struct to
cfs_hash_bd in libcfs_hash.h. These changes resolve the
"Do not add new typedefs" warning generated by checkpatch.pl
and meet kernel coding style.

Struct variables in other header and source files that depend
on libcfs_hash.h are updated as well.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../lustre/include/linux/libcfs/libcfs_hash.h      |  76 +++++++-------
 drivers/staging/lustre/lustre/include/lu_object.h  |   2 +-
 drivers/staging/lustre/lustre/ldlm/ldlm_lock.c     |   4 +-
 drivers/staging/lustre/lustre/ldlm/ldlm_request.c  |   4 +-
 drivers/staging/lustre/lustre/ldlm/ldlm_resource.c |  18 ++--
 drivers/staging/lustre/lustre/libcfs/hash.c        | 114 ++++++++++-----------
 drivers/staging/lustre/lustre/llite/vvp_dev.c      |   2 +-
 .../lustre/lustre/obdclass/lprocfs_status.c        |   4 +-
 drivers/staging/lustre/lustre/obdclass/lu_object.c |  24 ++---
 9 files changed, 124 insertions(+), 124 deletions(-)

diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
index 26c10d985dd3..61e4fcadf22f 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
@@ -109,10 +109,10 @@ struct cfs_hash_bucket {
 /**
  * cfs_hash bucket descriptor, it's normally in stack of caller
  */
-typedef struct cfs_hash_bd {
+struct cfs_hash_bd {
 	struct cfs_hash_bucket	*bd_bucket;      /**< address of bucket */
 	unsigned int		bd_offset;      /**< offset in bucket */
-} cfs_hash_bd_t;
+};
 
 #define CFS_HASH_NAME_LEN	   16      /**< default name length */
 #define CFS_HASH_BIGNAME_LEN	64      /**< bigname for param tree */
@@ -287,15 +287,15 @@ typedef struct cfs_hash_lock_ops {
 
 typedef struct cfs_hash_hlist_ops {
 	/** return hlist_head of hash-head of @bd */
-	struct hlist_head *(*hop_hhead)(cfs_hash_t *hs, cfs_hash_bd_t *bd);
+	struct hlist_head *(*hop_hhead)(cfs_hash_t *hs, struct cfs_hash_bd *bd);
 	/** return hash-head size */
 	int (*hop_hhead_size)(cfs_hash_t *hs);
 	/** add @hnode to hash-head of @bd */
 	int (*hop_hnode_add)(cfs_hash_t *hs,
-			     cfs_hash_bd_t *bd, struct hlist_node *hnode);
+			     struct cfs_hash_bd *bd, struct hlist_node *hnode);
 	/** remove @hnode from hash-head of @bd */
 	int (*hop_hnode_del)(cfs_hash_t *hs,
-			     cfs_hash_bd_t *bd, struct hlist_node *hnode);
+			     struct cfs_hash_bd *bd, struct hlist_node *hnode);
 } cfs_hash_hlist_ops_t;
 
 typedef struct cfs_hash_ops {
@@ -539,13 +539,13 @@ static inline int cfs_hash_dec_and_lock(cfs_hash_t *hs,
 }
 
 static inline void cfs_hash_bd_lock(cfs_hash_t *hs,
-				    cfs_hash_bd_t *bd, int excl)
+				    struct cfs_hash_bd *bd, int excl)
 {
 	hs->hs_lops->hs_bkt_lock(&bd->bd_bucket->hsb_lock, excl);
 }
 
 static inline void cfs_hash_bd_unlock(cfs_hash_t *hs,
-				      cfs_hash_bd_t *bd, int excl)
+				      struct cfs_hash_bd *bd, int excl)
 {
 	hs->hs_lops->hs_bkt_unlock(&bd->bd_bucket->hsb_lock, excl);
 }
@@ -554,56 +554,56 @@ static inline void cfs_hash_bd_unlock(cfs_hash_t *hs,
  * operations on cfs_hash bucket (bd: bucket descriptor),
  * they are normally for hash-table without rehash
  */
-void cfs_hash_bd_get(cfs_hash_t *hs, const void *key, cfs_hash_bd_t *bd);
+void cfs_hash_bd_get(cfs_hash_t *hs, const void *key, struct cfs_hash_bd *bd);
 
 static inline void cfs_hash_bd_get_and_lock(cfs_hash_t *hs, const void *key,
-					    cfs_hash_bd_t *bd, int excl)
+					    struct cfs_hash_bd *bd, int excl)
 {
 	cfs_hash_bd_get(hs, key, bd);
 	cfs_hash_bd_lock(hs, bd, excl);
 }
 
-static inline unsigned cfs_hash_bd_index_get(cfs_hash_t *hs, cfs_hash_bd_t *bd)
+static inline unsigned cfs_hash_bd_index_get(cfs_hash_t *hs, struct cfs_hash_bd *bd)
 {
 	return bd->bd_offset | (bd->bd_bucket->hsb_index << hs->hs_bkt_bits);
 }
 
 static inline void cfs_hash_bd_index_set(cfs_hash_t *hs,
-					 unsigned index, cfs_hash_bd_t *bd)
+					 unsigned index, struct cfs_hash_bd *bd)
 {
 	bd->bd_bucket = hs->hs_buckets[index >> hs->hs_bkt_bits];
 	bd->bd_offset = index & (CFS_HASH_BKT_NHLIST(hs) - 1U);
 }
 
 static inline void *
-cfs_hash_bd_extra_get(cfs_hash_t *hs, cfs_hash_bd_t *bd)
+cfs_hash_bd_extra_get(cfs_hash_t *hs, struct cfs_hash_bd *bd)
 {
 	return (void *)bd->bd_bucket +
 	       cfs_hash_bkt_size(hs) - hs->hs_extra_bytes;
 }
 
 static inline __u32
-cfs_hash_bd_version_get(cfs_hash_bd_t *bd)
+cfs_hash_bd_version_get(struct cfs_hash_bd *bd)
 {
 	/* need hold cfs_hash_bd_lock */
 	return bd->bd_bucket->hsb_version;
 }
 
 static inline __u32
-cfs_hash_bd_count_get(cfs_hash_bd_t *bd)
+cfs_hash_bd_count_get(struct cfs_hash_bd *bd)
 {
 	/* need hold cfs_hash_bd_lock */
 	return bd->bd_bucket->hsb_count;
 }
 
 static inline int
-cfs_hash_bd_depmax_get(cfs_hash_bd_t *bd)
+cfs_hash_bd_depmax_get(struct cfs_hash_bd *bd)
 {
 	return bd->bd_bucket->hsb_depmax;
 }
 
 static inline int
-cfs_hash_bd_compare(cfs_hash_bd_t *bd1, cfs_hash_bd_t *bd2)
+cfs_hash_bd_compare(struct cfs_hash_bd *bd1, struct cfs_hash_bd *bd2)
 {
 	if (bd1->bd_bucket->hsb_index != bd2->bd_bucket->hsb_index)
 		return bd1->bd_bucket->hsb_index - bd2->bd_bucket->hsb_index;
@@ -614,14 +614,14 @@ cfs_hash_bd_compare(cfs_hash_bd_t *bd1, cfs_hash_bd_t *bd2)
 	return 0;
 }
 
-void cfs_hash_bd_add_locked(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+void cfs_hash_bd_add_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 			    struct hlist_node *hnode);
-void cfs_hash_bd_del_locked(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+void cfs_hash_bd_del_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 			    struct hlist_node *hnode);
-void cfs_hash_bd_move_locked(cfs_hash_t *hs, cfs_hash_bd_t *bd_old,
-			     cfs_hash_bd_t *bd_new, struct hlist_node *hnode);
+void cfs_hash_bd_move_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd_old,
+			     struct cfs_hash_bd *bd_new, struct hlist_node *hnode);
 
-static inline int cfs_hash_bd_dec_and_lock(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+static inline int cfs_hash_bd_dec_and_lock(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 					   atomic_t *condition)
 {
 	LASSERT(cfs_hash_with_spin_bktlock(hs));
@@ -630,48 +630,48 @@ static inline int cfs_hash_bd_dec_and_lock(cfs_hash_t *hs, cfs_hash_bd_t *bd,
 }
 
 static inline struct hlist_head *cfs_hash_bd_hhead(cfs_hash_t *hs,
-						  cfs_hash_bd_t *bd)
+						  struct cfs_hash_bd *bd)
 {
 	return hs->hs_hops->hop_hhead(hs, bd);
 }
 
 struct hlist_node *cfs_hash_bd_lookup_locked(cfs_hash_t *hs,
-					    cfs_hash_bd_t *bd, const void *key);
+					    struct cfs_hash_bd *bd, const void *key);
 struct hlist_node *cfs_hash_bd_peek_locked(cfs_hash_t *hs,
-					  cfs_hash_bd_t *bd, const void *key);
+					  struct cfs_hash_bd *bd, const void *key);
 struct hlist_node *cfs_hash_bd_findadd_locked(cfs_hash_t *hs,
-					     cfs_hash_bd_t *bd, const void *key,
+					     struct cfs_hash_bd *bd, const void *key,
 					     struct hlist_node *hnode,
 					     int insist_add);
 struct hlist_node *cfs_hash_bd_finddel_locked(cfs_hash_t *hs,
-					     cfs_hash_bd_t *bd, const void *key,
+					     struct cfs_hash_bd *bd, const void *key,
 					     struct hlist_node *hnode);
 
 /**
  * operations on cfs_hash bucket (bd: bucket descriptor),
  * they are safe for hash-table with rehash
  */
-void cfs_hash_dual_bd_get(cfs_hash_t *hs, const void *key, cfs_hash_bd_t *bds);
-void cfs_hash_dual_bd_lock(cfs_hash_t *hs, cfs_hash_bd_t *bds, int excl);
-void cfs_hash_dual_bd_unlock(cfs_hash_t *hs, cfs_hash_bd_t *bds, int excl);
+void cfs_hash_dual_bd_get(cfs_hash_t *hs, const void *key, struct cfs_hash_bd *bds);
+void cfs_hash_dual_bd_lock(cfs_hash_t *hs, struct cfs_hash_bd *bds, int excl);
+void cfs_hash_dual_bd_unlock(cfs_hash_t *hs, struct cfs_hash_bd *bds, int excl);
 
 static inline void cfs_hash_dual_bd_get_and_lock(cfs_hash_t *hs, const void *key,
-						 cfs_hash_bd_t *bds, int excl)
+						 struct cfs_hash_bd *bds, int excl)
 {
 	cfs_hash_dual_bd_get(hs, key, bds);
 	cfs_hash_dual_bd_lock(hs, bds, excl);
 }
 
 struct hlist_node *cfs_hash_dual_bd_lookup_locked(cfs_hash_t *hs,
-						 cfs_hash_bd_t *bds,
+						 struct cfs_hash_bd *bds,
 						 const void *key);
 struct hlist_node *cfs_hash_dual_bd_findadd_locked(cfs_hash_t *hs,
-						  cfs_hash_bd_t *bds,
+						  struct cfs_hash_bd *bds,
 						  const void *key,
 						  struct hlist_node *hnode,
 						  int insist_add);
 struct hlist_node *cfs_hash_dual_bd_finddel_locked(cfs_hash_t *hs,
-						  cfs_hash_bd_t *bds,
+						  struct cfs_hash_bd *bds,
 						  const void *key,
 						  struct hlist_node *hnode);
 
@@ -699,7 +699,7 @@ void *cfs_hash_del_key(cfs_hash_t *hs, const void *key);
 /* Hash lookup/for_each functions */
 #define CFS_HASH_LOOP_HOG       1024
 
-typedef int (*cfs_hash_for_each_cb_t)(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+typedef int (*cfs_hash_for_each_cb_t)(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 				      struct hlist_node *node, void *data);
 void *cfs_hash_lookup(cfs_hash_t *hs, const void *key);
 void cfs_hash_for_each(cfs_hash_t *hs, cfs_hash_for_each_cb_t, void *data);
@@ -739,10 +739,10 @@ cfs_hash_key_validate(cfs_hash_t *hs, const void *key,
 
 /* Validate hnode is in the correct bucket */
 static inline void
-cfs_hash_bucket_validate(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+cfs_hash_bucket_validate(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 			 struct hlist_node *hnode)
 {
-	cfs_hash_bd_t   bds[2];
+	struct cfs_hash_bd   bds[2];
 
 	cfs_hash_dual_bd_get(hs, cfs_hash_key(hs, hnode), bds);
 	LASSERT(bds[0].bd_bucket == bd->bd_bucket ||
@@ -756,7 +756,7 @@ cfs_hash_key_validate(cfs_hash_t *hs, const void *key,
 		      struct hlist_node *hnode) {}
 
 static inline void
-cfs_hash_bucket_validate(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+cfs_hash_bucket_validate(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 			 struct hlist_node *hnode) {}
 
 #endif /* CFS_HASH_DEBUG_LEVEL */
@@ -830,7 +830,7 @@ cfs_hash_u64_hash(const __u64 key, unsigned mask)
 	return ((unsigned)(key * CFS_GOLDEN_RATIO_PRIME_64) & mask);
 }
 
-/** iterate over all buckets in @bds (array of cfs_hash_bd_t) */
+/** iterate over all buckets in @bds (array of struct cfs_hash_bd) */
 #define cfs_hash_for_each_bd(bds, n, i) \
 	for (i = 0; i < n && (bds)[i].bd_bucket != NULL; i++)
 
diff --git a/drivers/staging/lustre/lustre/include/lu_object.h b/drivers/staging/lustre/lustre/include/lu_object.h
index fa31be886ef8..478cd35ea7a1 100644
--- a/drivers/staging/lustre/lustre/include/lu_object.h
+++ b/drivers/staging/lustre/lustre/include/lu_object.h
@@ -659,7 +659,7 @@ struct lu_site {
 static inline struct lu_site_bkt_data *
 lu_site_bkt_from_fid(struct lu_site *site, struct lu_fid *fid)
 {
-	cfs_hash_bd_t bd;
+	struct cfs_hash_bd bd;
 
 	cfs_hash_bd_get(site->ls_obj_hash, fid, &bd);
 	return cfs_hash_bd_extra_get(site->ls_obj_hash, &bd);
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
index 027617f5083f..98f809376e78 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
@@ -1891,7 +1891,7 @@ static int reprocess_one_queue(struct ldlm_resource *res, void *closure)
 	return LDLM_ITER_CONTINUE;
 }
 
-static int ldlm_reprocess_res(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+static int ldlm_reprocess_res(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 			      struct hlist_node *hnode, void *arg)
 {
 	struct ldlm_resource *res = cfs_hash_object(hs, hnode);
@@ -2040,7 +2040,7 @@ struct export_cl_data {
  * Iterator function for ldlm_cancel_locks_for_export.
  * Cancels passed locks.
  */
-int ldlm_cancel_locks_for_export_cb(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+int ldlm_cancel_locks_for_export_cb(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 				    struct hlist_node *hnode, void *data)
 
 {
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
index 21cb523ac4af..2512b2984f24 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
@@ -1925,7 +1925,7 @@ struct ldlm_cli_cancel_arg {
 	void   *lc_opaque;
 };
 
-static int ldlm_cli_hash_cancel_unused(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+static int ldlm_cli_hash_cancel_unused(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 				       struct hlist_node *hnode, void *arg)
 {
 	struct ldlm_resource	   *res = cfs_hash_object(hs, hnode);
@@ -2023,7 +2023,7 @@ static int ldlm_iter_helper(struct ldlm_lock *lock, void *closure)
 	return helper->iter(lock, helper->closure);
 }
 
-static int ldlm_res_iter_helper(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+static int ldlm_res_iter_helper(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 				struct hlist_node *hnode, void *arg)
 
 {
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
index 8d3dd6dad9b7..f50af90118fb 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
@@ -159,7 +159,7 @@ static int lprocfs_ns_resources_seq_show(struct seq_file *m, void *v)
 {
 	struct ldlm_namespace *ns  = m->private;
 	__u64		  res = 0;
-	cfs_hash_bd_t	  bd;
+	struct cfs_hash_bd	  bd;
 	int		    i;
 
 	/* result is not strictly consistant */
@@ -564,7 +564,7 @@ struct ldlm_namespace *ldlm_namespace_new(struct obd_device *obd, char *name,
 	struct ldlm_namespace *ns = NULL;
 	struct ldlm_ns_bucket *nsb;
 	ldlm_ns_hash_def_t    *nsd;
-	cfs_hash_bd_t	  bd;
+	struct cfs_hash_bd	  bd;
 	int		    idx;
 	int		    rc;
 
@@ -743,7 +743,7 @@ static void cleanup_resource(struct ldlm_resource *res, struct list_head *q,
 	} while (1);
 }
 
-static int ldlm_resource_clean(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+static int ldlm_resource_clean(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 			       struct hlist_node *hnode, void *arg)
 {
 	struct ldlm_resource *res = cfs_hash_object(hs, hnode);
@@ -756,7 +756,7 @@ static int ldlm_resource_clean(cfs_hash_t *hs, cfs_hash_bd_t *bd,
 	return 0;
 }
 
-static int ldlm_resource_complain(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+static int ldlm_resource_complain(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 				  struct hlist_node *hnode, void *arg)
 {
 	struct ldlm_resource  *res = cfs_hash_object(hs, hnode);
@@ -1060,7 +1060,7 @@ ldlm_resource_get(struct ldlm_namespace *ns, struct ldlm_resource *parent,
 {
 	struct hlist_node     *hnode;
 	struct ldlm_resource *res;
-	cfs_hash_bd_t	 bd;
+	struct cfs_hash_bd	 bd;
 	__u64		 version;
 	int		      ns_refcount = 0;
 
@@ -1183,7 +1183,7 @@ struct ldlm_resource *ldlm_resource_getref(struct ldlm_resource *res)
 	return res;
 }
 
-static void __ldlm_resource_putref_final(cfs_hash_bd_t *bd,
+static void __ldlm_resource_putref_final(struct cfs_hash_bd *bd,
 					 struct ldlm_resource *res)
 {
 	struct ldlm_ns_bucket *nsb = res->lr_ns_bucket;
@@ -1214,7 +1214,7 @@ static void __ldlm_resource_putref_final(cfs_hash_bd_t *bd,
 int ldlm_resource_putref(struct ldlm_resource *res)
 {
 	struct ldlm_namespace *ns = ldlm_res_to_ns(res);
-	cfs_hash_bd_t   bd;
+	struct cfs_hash_bd   bd;
 
 	LASSERT_ATOMIC_GT_LT(&res->lr_refcount, 0, LI_POISON);
 	CDEBUG(D_INFO, "putref res: %p count: %d\n",
@@ -1243,7 +1243,7 @@ int ldlm_resource_putref_locked(struct ldlm_resource *res)
 	       res, atomic_read(&res->lr_refcount) - 1);
 
 	if (atomic_dec_and_test(&res->lr_refcount)) {
-		cfs_hash_bd_t bd;
+		struct cfs_hash_bd bd;
 
 		cfs_hash_bd_get(ldlm_res_to_ns(res)->ns_rs_hash,
 				&res->lr_name, &bd);
@@ -1352,7 +1352,7 @@ void ldlm_dump_all_namespaces(ldlm_side_t client, int level)
 }
 EXPORT_SYMBOL(ldlm_dump_all_namespaces);
 
-static int ldlm_res_hash_dump(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+static int ldlm_res_hash_dump(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 			      struct hlist_node *hnode, void *arg)
 {
 	struct ldlm_resource *res = cfs_hash_object(hs, hnode);
diff --git a/drivers/staging/lustre/lustre/libcfs/hash.c b/drivers/staging/lustre/lustre/libcfs/hash.c
index c3cb1c0b04d5..46186e19ea6c 100644
--- a/drivers/staging/lustre/lustre/libcfs/hash.c
+++ b/drivers/staging/lustre/lustre/libcfs/hash.c
@@ -252,7 +252,7 @@ cfs_hash_hh_hhead_size(cfs_hash_t *hs)
 }
 
 static struct hlist_head *
-cfs_hash_hh_hhead(cfs_hash_t *hs, cfs_hash_bd_t *bd)
+cfs_hash_hh_hhead(cfs_hash_t *hs, struct cfs_hash_bd *bd)
 {
 	cfs_hash_head_t *head = (cfs_hash_head_t *)&bd->bd_bucket->hsb_head[0];
 
@@ -260,7 +260,7 @@ cfs_hash_hh_hhead(cfs_hash_t *hs, cfs_hash_bd_t *bd)
 }
 
 static int
-cfs_hash_hh_hnode_add(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+cfs_hash_hh_hnode_add(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 		      struct hlist_node *hnode)
 {
 	hlist_add_head(hnode, cfs_hash_hh_hhead(hs, bd));
@@ -268,7 +268,7 @@ cfs_hash_hh_hnode_add(cfs_hash_t *hs, cfs_hash_bd_t *bd,
 }
 
 static int
-cfs_hash_hh_hnode_del(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+cfs_hash_hh_hnode_del(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 		      struct hlist_node *hnode)
 {
 	hlist_del_init(hnode);
@@ -291,7 +291,7 @@ cfs_hash_hd_hhead_size(cfs_hash_t *hs)
 }
 
 static struct hlist_head *
-cfs_hash_hd_hhead(cfs_hash_t *hs, cfs_hash_bd_t *bd)
+cfs_hash_hd_hhead(cfs_hash_t *hs, struct cfs_hash_bd *bd)
 {
 	cfs_hash_head_dep_t   *head;
 
@@ -300,7 +300,7 @@ cfs_hash_hd_hhead(cfs_hash_t *hs, cfs_hash_bd_t *bd)
 }
 
 static int
-cfs_hash_hd_hnode_add(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+cfs_hash_hd_hnode_add(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 		      struct hlist_node *hnode)
 {
 	cfs_hash_head_dep_t *hh = container_of(cfs_hash_hd_hhead(hs, bd),
@@ -310,7 +310,7 @@ cfs_hash_hd_hnode_add(cfs_hash_t *hs, cfs_hash_bd_t *bd,
 }
 
 static int
-cfs_hash_hd_hnode_del(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+cfs_hash_hd_hnode_del(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 		      struct hlist_node *hnode)
 {
 	cfs_hash_head_dep_t *hh = container_of(cfs_hash_hd_hhead(hs, bd),
@@ -335,7 +335,7 @@ cfs_hash_dh_hhead_size(cfs_hash_t *hs)
 }
 
 static struct hlist_head *
-cfs_hash_dh_hhead(cfs_hash_t *hs, cfs_hash_bd_t *bd)
+cfs_hash_dh_hhead(cfs_hash_t *hs, struct cfs_hash_bd *bd)
 {
 	cfs_hash_dhead_t *head;
 
@@ -344,7 +344,7 @@ cfs_hash_dh_hhead(cfs_hash_t *hs, cfs_hash_bd_t *bd)
 }
 
 static int
-cfs_hash_dh_hnode_add(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+cfs_hash_dh_hnode_add(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 		      struct hlist_node *hnode)
 {
 	cfs_hash_dhead_t *dh = container_of(cfs_hash_dh_hhead(hs, bd),
@@ -359,7 +359,7 @@ cfs_hash_dh_hnode_add(cfs_hash_t *hs, cfs_hash_bd_t *bd,
 }
 
 static int
-cfs_hash_dh_hnode_del(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+cfs_hash_dh_hnode_del(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 		      struct hlist_node *hnd)
 {
 	cfs_hash_dhead_t *dh = container_of(cfs_hash_dh_hhead(hs, bd),
@@ -390,7 +390,7 @@ cfs_hash_dd_hhead_size(cfs_hash_t *hs)
 }
 
 static struct hlist_head *
-cfs_hash_dd_hhead(cfs_hash_t *hs, cfs_hash_bd_t *bd)
+cfs_hash_dd_hhead(cfs_hash_t *hs, struct cfs_hash_bd *bd)
 {
 	cfs_hash_dhead_dep_t *head;
 
@@ -399,7 +399,7 @@ cfs_hash_dd_hhead(cfs_hash_t *hs, cfs_hash_bd_t *bd)
 }
 
 static int
-cfs_hash_dd_hnode_add(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+cfs_hash_dd_hnode_add(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 		      struct hlist_node *hnode)
 {
 	cfs_hash_dhead_dep_t *dh = container_of(cfs_hash_dd_hhead(hs, bd),
@@ -414,7 +414,7 @@ cfs_hash_dd_hnode_add(cfs_hash_t *hs, cfs_hash_bd_t *bd,
 }
 
 static int
-cfs_hash_dd_hnode_del(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+cfs_hash_dd_hnode_del(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 		      struct hlist_node *hnd)
 {
 	cfs_hash_dhead_dep_t *dh = container_of(cfs_hash_dd_hhead(hs, bd),
@@ -470,7 +470,7 @@ cfs_hash_hlist_setup(cfs_hash_t *hs)
 
 static void
 cfs_hash_bd_from_key(cfs_hash_t *hs, struct cfs_hash_bucket **bkts,
-		     unsigned int bits, const void *key, cfs_hash_bd_t *bd)
+		     unsigned int bits, const void *key, struct cfs_hash_bd *bd)
 {
 	unsigned int index = cfs_hash_id(hs, key, (1U << bits) - 1);
 
@@ -481,7 +481,7 @@ cfs_hash_bd_from_key(cfs_hash_t *hs, struct cfs_hash_bucket **bkts,
 }
 
 void
-cfs_hash_bd_get(cfs_hash_t *hs, const void *key, cfs_hash_bd_t *bd)
+cfs_hash_bd_get(cfs_hash_t *hs, const void *key, struct cfs_hash_bd *bd)
 {
 	/* NB: caller should hold hs->hs_rwlock if REHASH is set */
 	if (likely(hs->hs_rehash_buckets == NULL)) {
@@ -496,7 +496,7 @@ cfs_hash_bd_get(cfs_hash_t *hs, const void *key, cfs_hash_bd_t *bd)
 EXPORT_SYMBOL(cfs_hash_bd_get);
 
 static inline void
-cfs_hash_bd_dep_record(cfs_hash_t *hs, cfs_hash_bd_t *bd, int dep_cur)
+cfs_hash_bd_dep_record(cfs_hash_t *hs, struct cfs_hash_bd *bd, int dep_cur)
 {
 	if (likely(dep_cur <= bd->bd_bucket->hsb_depmax))
 		return;
@@ -519,7 +519,7 @@ cfs_hash_bd_dep_record(cfs_hash_t *hs, cfs_hash_bd_t *bd, int dep_cur)
 }
 
 void
-cfs_hash_bd_add_locked(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+cfs_hash_bd_add_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 		       struct hlist_node *hnode)
 {
 	int		rc;
@@ -539,7 +539,7 @@ cfs_hash_bd_add_locked(cfs_hash_t *hs, cfs_hash_bd_t *bd,
 EXPORT_SYMBOL(cfs_hash_bd_add_locked);
 
 void
-cfs_hash_bd_del_locked(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+cfs_hash_bd_del_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 		       struct hlist_node *hnode)
 {
 	hs->hs_hops->hop_hnode_del(hs, bd, hnode);
@@ -560,8 +560,8 @@ cfs_hash_bd_del_locked(cfs_hash_t *hs, cfs_hash_bd_t *bd,
 EXPORT_SYMBOL(cfs_hash_bd_del_locked);
 
 void
-cfs_hash_bd_move_locked(cfs_hash_t *hs, cfs_hash_bd_t *bd_old,
-			cfs_hash_bd_t *bd_new, struct hlist_node *hnode)
+cfs_hash_bd_move_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd_old,
+			struct cfs_hash_bd *bd_new, struct hlist_node *hnode)
 {
 	struct cfs_hash_bucket *obkt = bd_old->bd_bucket;
 	struct cfs_hash_bucket *nbkt = bd_new->bd_bucket;
@@ -617,7 +617,7 @@ typedef enum cfs_hash_lookup_intent {
 } cfs_hash_lookup_intent_t;
 
 static struct hlist_node *
-cfs_hash_bd_lookup_intent(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+cfs_hash_bd_lookup_intent(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 			  const void *key, struct hlist_node *hnode,
 			  cfs_hash_lookup_intent_t intent)
 
@@ -658,7 +658,7 @@ cfs_hash_bd_lookup_intent(cfs_hash_t *hs, cfs_hash_bd_t *bd,
 }
 
 struct hlist_node *
-cfs_hash_bd_lookup_locked(cfs_hash_t *hs, cfs_hash_bd_t *bd, const void *key)
+cfs_hash_bd_lookup_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd, const void *key)
 {
 	return cfs_hash_bd_lookup_intent(hs, bd, key, NULL,
 					 CFS_HS_LOOKUP_IT_FIND);
@@ -666,7 +666,7 @@ cfs_hash_bd_lookup_locked(cfs_hash_t *hs, cfs_hash_bd_t *bd, const void *key)
 EXPORT_SYMBOL(cfs_hash_bd_lookup_locked);
 
 struct hlist_node *
-cfs_hash_bd_peek_locked(cfs_hash_t *hs, cfs_hash_bd_t *bd, const void *key)
+cfs_hash_bd_peek_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd, const void *key)
 {
 	return cfs_hash_bd_lookup_intent(hs, bd, key, NULL,
 					 CFS_HS_LOOKUP_IT_PEEK);
@@ -674,7 +674,7 @@ cfs_hash_bd_peek_locked(cfs_hash_t *hs, cfs_hash_bd_t *bd, const void *key)
 EXPORT_SYMBOL(cfs_hash_bd_peek_locked);
 
 struct hlist_node *
-cfs_hash_bd_findadd_locked(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+cfs_hash_bd_findadd_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 			   const void *key, struct hlist_node *hnode,
 			   int noref)
 {
@@ -685,7 +685,7 @@ cfs_hash_bd_findadd_locked(cfs_hash_t *hs, cfs_hash_bd_t *bd,
 EXPORT_SYMBOL(cfs_hash_bd_findadd_locked);
 
 struct hlist_node *
-cfs_hash_bd_finddel_locked(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+cfs_hash_bd_finddel_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 			   const void *key, struct hlist_node *hnode)
 {
 	/* hnode can be NULL, we find the first item with @key */
@@ -695,7 +695,7 @@ cfs_hash_bd_finddel_locked(cfs_hash_t *hs, cfs_hash_bd_t *bd,
 EXPORT_SYMBOL(cfs_hash_bd_finddel_locked);
 
 static void
-cfs_hash_multi_bd_lock(cfs_hash_t *hs, cfs_hash_bd_t *bds,
+cfs_hash_multi_bd_lock(cfs_hash_t *hs, struct cfs_hash_bd *bds,
 		       unsigned n, int excl)
 {
 	struct cfs_hash_bucket *prev = NULL;
@@ -718,7 +718,7 @@ cfs_hash_multi_bd_lock(cfs_hash_t *hs, cfs_hash_bd_t *bds,
 }
 
 static void
-cfs_hash_multi_bd_unlock(cfs_hash_t *hs, cfs_hash_bd_t *bds,
+cfs_hash_multi_bd_unlock(cfs_hash_t *hs, struct cfs_hash_bd *bds,
 			 unsigned n, int excl)
 {
 	struct cfs_hash_bucket *prev = NULL;
@@ -733,7 +733,7 @@ cfs_hash_multi_bd_unlock(cfs_hash_t *hs, cfs_hash_bd_t *bds,
 }
 
 static struct hlist_node *
-cfs_hash_multi_bd_lookup_locked(cfs_hash_t *hs, cfs_hash_bd_t *bds,
+cfs_hash_multi_bd_lookup_locked(cfs_hash_t *hs, struct cfs_hash_bd *bds,
 				unsigned n, const void *key)
 {
 	struct hlist_node  *ehnode;
@@ -750,7 +750,7 @@ cfs_hash_multi_bd_lookup_locked(cfs_hash_t *hs, cfs_hash_bd_t *bds,
 
 static struct hlist_node *
 cfs_hash_multi_bd_findadd_locked(cfs_hash_t *hs,
-				 cfs_hash_bd_t *bds, unsigned n, const void *key,
+				 struct cfs_hash_bd *bds, unsigned n, const void *key,
 				 struct hlist_node *hnode, int noref)
 {
 	struct hlist_node  *ehnode;
@@ -770,7 +770,7 @@ cfs_hash_multi_bd_findadd_locked(cfs_hash_t *hs,
 	if (i == 1) { /* only one bucket */
 		cfs_hash_bd_add_locked(hs, &bds[0], hnode);
 	} else {
-		cfs_hash_bd_t      mybd;
+		struct cfs_hash_bd      mybd;
 
 		cfs_hash_bd_get(hs, key, &mybd);
 		cfs_hash_bd_add_locked(hs, &mybd, hnode);
@@ -780,7 +780,7 @@ cfs_hash_multi_bd_findadd_locked(cfs_hash_t *hs,
 }
 
 static struct hlist_node *
-cfs_hash_multi_bd_finddel_locked(cfs_hash_t *hs, cfs_hash_bd_t *bds,
+cfs_hash_multi_bd_finddel_locked(cfs_hash_t *hs, struct cfs_hash_bd *bds,
 				 unsigned n, const void *key,
 				 struct hlist_node *hnode)
 {
@@ -797,7 +797,7 @@ cfs_hash_multi_bd_finddel_locked(cfs_hash_t *hs, cfs_hash_bd_t *bds,
 }
 
 static void
-cfs_hash_bd_order(cfs_hash_bd_t *bd1, cfs_hash_bd_t *bd2)
+cfs_hash_bd_order(struct cfs_hash_bd *bd1, struct cfs_hash_bd *bd2)
 {
 	int     rc;
 
@@ -815,7 +815,7 @@ cfs_hash_bd_order(cfs_hash_bd_t *bd1, cfs_hash_bd_t *bd2)
 		bd2->bd_bucket = NULL;
 
 	} else if (rc > 0) { /* swab bd1 and bd2 */
-		cfs_hash_bd_t tmp;
+		struct cfs_hash_bd tmp;
 
 		tmp = *bd2;
 		*bd2 = *bd1;
@@ -824,7 +824,7 @@ cfs_hash_bd_order(cfs_hash_bd_t *bd1, cfs_hash_bd_t *bd2)
 }
 
 void
-cfs_hash_dual_bd_get(cfs_hash_t *hs, const void *key, cfs_hash_bd_t *bds)
+cfs_hash_dual_bd_get(cfs_hash_t *hs, const void *key, struct cfs_hash_bd *bds)
 {
 	/* NB: caller should hold hs_lock.rw if REHASH is set */
 	cfs_hash_bd_from_key(hs, hs->hs_buckets,
@@ -844,21 +844,21 @@ cfs_hash_dual_bd_get(cfs_hash_t *hs, const void *key, cfs_hash_bd_t *bds)
 EXPORT_SYMBOL(cfs_hash_dual_bd_get);
 
 void
-cfs_hash_dual_bd_lock(cfs_hash_t *hs, cfs_hash_bd_t *bds, int excl)
+cfs_hash_dual_bd_lock(cfs_hash_t *hs, struct cfs_hash_bd *bds, int excl)
 {
 	cfs_hash_multi_bd_lock(hs, bds, 2, excl);
 }
 EXPORT_SYMBOL(cfs_hash_dual_bd_lock);
 
 void
-cfs_hash_dual_bd_unlock(cfs_hash_t *hs, cfs_hash_bd_t *bds, int excl)
+cfs_hash_dual_bd_unlock(cfs_hash_t *hs, struct cfs_hash_bd *bds, int excl)
 {
 	cfs_hash_multi_bd_unlock(hs, bds, 2, excl);
 }
 EXPORT_SYMBOL(cfs_hash_dual_bd_unlock);
 
 struct hlist_node *
-cfs_hash_dual_bd_lookup_locked(cfs_hash_t *hs, cfs_hash_bd_t *bds,
+cfs_hash_dual_bd_lookup_locked(cfs_hash_t *hs, struct cfs_hash_bd *bds,
 			       const void *key)
 {
 	return cfs_hash_multi_bd_lookup_locked(hs, bds, 2, key);
@@ -866,7 +866,7 @@ cfs_hash_dual_bd_lookup_locked(cfs_hash_t *hs, cfs_hash_bd_t *bds,
 EXPORT_SYMBOL(cfs_hash_dual_bd_lookup_locked);
 
 struct hlist_node *
-cfs_hash_dual_bd_findadd_locked(cfs_hash_t *hs, cfs_hash_bd_t *bds,
+cfs_hash_dual_bd_findadd_locked(cfs_hash_t *hs, struct cfs_hash_bd *bds,
 				const void *key, struct hlist_node *hnode,
 				int noref)
 {
@@ -876,7 +876,7 @@ cfs_hash_dual_bd_findadd_locked(cfs_hash_t *hs, cfs_hash_bd_t *bds,
 EXPORT_SYMBOL(cfs_hash_dual_bd_findadd_locked);
 
 struct hlist_node *
-cfs_hash_dual_bd_finddel_locked(cfs_hash_t *hs, cfs_hash_bd_t *bds,
+cfs_hash_dual_bd_finddel_locked(cfs_hash_t *hs, struct cfs_hash_bd *bds,
 				const void *key, struct hlist_node *hnode)
 {
 	return cfs_hash_multi_bd_finddel_locked(hs, bds, 2, key, hnode);
@@ -925,7 +925,7 @@ cfs_hash_buckets_realloc(cfs_hash_t *hs, struct cfs_hash_bucket **old_bkts,
 
 	for (i = old_size; i < new_size; i++) {
 		struct hlist_head *hhead;
-		cfs_hash_bd_t     bd;
+		struct cfs_hash_bd     bd;
 
 		LIBCFS_ALLOC(new_bkts[i], cfs_hash_bkt_size(hs));
 		if (new_bkts[i] == NULL) {
@@ -1097,7 +1097,7 @@ cfs_hash_destroy(cfs_hash_t *hs)
 {
 	struct hlist_node     *hnode;
 	struct hlist_node     *pos;
-	cfs_hash_bd_t	 bd;
+	struct cfs_hash_bd	 bd;
 	int		   i;
 
 	LASSERT(hs != NULL);
@@ -1217,7 +1217,7 @@ cfs_hash_rehash_inline(cfs_hash_t *hs)
 void
 cfs_hash_add(cfs_hash_t *hs, const void *key, struct hlist_node *hnode)
 {
-	cfs_hash_bd_t   bd;
+	struct cfs_hash_bd   bd;
 	int	     bits;
 
 	LASSERT(hlist_unhashed(hnode));
@@ -1242,7 +1242,7 @@ cfs_hash_find_or_add(cfs_hash_t *hs, const void *key,
 		     struct hlist_node *hnode, int noref)
 {
 	struct hlist_node *ehnode;
-	cfs_hash_bd_t     bds[2];
+	struct cfs_hash_bd     bds[2];
 	int	       bits = 0;
 
 	LASSERT(hlist_unhashed(hnode));
@@ -1305,7 +1305,7 @@ cfs_hash_del(cfs_hash_t *hs, const void *key, struct hlist_node *hnode)
 {
 	void	   *obj  = NULL;
 	int	     bits = 0;
-	cfs_hash_bd_t   bds[2];
+	struct cfs_hash_bd   bds[2];
 
 	cfs_hash_lock(hs, 0);
 	cfs_hash_dual_bd_get_and_lock(hs, key, bds, 1);
@@ -1360,7 +1360,7 @@ cfs_hash_lookup(cfs_hash_t *hs, const void *key)
 {
 	void		 *obj = NULL;
 	struct hlist_node     *hnode;
-	cfs_hash_bd_t	 bds[2];
+	struct cfs_hash_bd	 bds[2];
 
 	cfs_hash_lock(hs, 0);
 	cfs_hash_dual_bd_get_and_lock(hs, key, bds, 0);
@@ -1439,7 +1439,7 @@ cfs_hash_for_each_tight(cfs_hash_t *hs, cfs_hash_for_each_cb_t func,
 {
 	struct hlist_node     *hnode;
 	struct hlist_node     *pos;
-	cfs_hash_bd_t	 bd;
+	struct cfs_hash_bd	 bd;
 	__u64		 count = 0;
 	int		   excl  = !!remove_safe;
 	int		   loop  = 0;
@@ -1492,7 +1492,7 @@ typedef struct {
 } cfs_hash_cond_arg_t;
 
 static int
-cfs_hash_cond_del_locked(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+cfs_hash_cond_del_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 			 struct hlist_node *hnode, void *data)
 {
 	cfs_hash_cond_arg_t *cond = data;
@@ -1536,7 +1536,7 @@ cfs_hash_for_each_safe(cfs_hash_t *hs,
 EXPORT_SYMBOL(cfs_hash_for_each_safe);
 
 static int
-cfs_hash_peek(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+cfs_hash_peek(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 	      struct hlist_node *hnode, void *data)
 {
 	*(int *)data = 0;
@@ -1582,7 +1582,7 @@ cfs_hash_for_each_relax(cfs_hash_t *hs, cfs_hash_for_each_cb_t func, void *data)
 {
 	struct hlist_node *hnode;
 	struct hlist_node *tmp;
-	cfs_hash_bd_t     bd;
+	struct cfs_hash_bd     bd;
 	__u32	     version;
 	int	       count = 0;
 	int	       stop_on_change;
@@ -1701,7 +1701,7 @@ cfs_hash_hlist_for_each(cfs_hash_t *hs, unsigned hindex,
 {
 	struct hlist_head   *hhead;
 	struct hlist_node   *hnode;
-	cfs_hash_bd_t       bd;
+	struct cfs_hash_bd       bd;
 
 	cfs_hash_for_each_enter(hs);
 	cfs_hash_lock(hs, 0);
@@ -1735,7 +1735,7 @@ cfs_hash_for_each_key(cfs_hash_t *hs, const void *key,
 		      cfs_hash_for_each_cb_t func, void *data)
 {
 	struct hlist_node   *hnode;
-	cfs_hash_bd_t       bds[2];
+	struct cfs_hash_bd       bds[2];
 	unsigned	    i;
 
 	cfs_hash_lock(hs, 0);
@@ -1840,9 +1840,9 @@ cfs_hash_rehash(cfs_hash_t *hs, int do_rehash)
 EXPORT_SYMBOL(cfs_hash_rehash);
 
 static int
-cfs_hash_rehash_bd(cfs_hash_t *hs, cfs_hash_bd_t *old)
+cfs_hash_rehash_bd(cfs_hash_t *hs, struct cfs_hash_bd *old)
 {
-	cfs_hash_bd_t      new;
+	struct cfs_hash_bd      new;
 	struct hlist_head  *hhead;
 	struct hlist_node  *hnode;
 	struct hlist_node  *pos;
@@ -1875,7 +1875,7 @@ cfs_hash_rehash_worker(cfs_workitem_t *wi)
 {
 	cfs_hash_t	 *hs = container_of(wi, cfs_hash_t, hs_rehash_wi);
 	struct cfs_hash_bucket **bkts;
-	cfs_hash_bd_t       bd;
+	struct cfs_hash_bd       bd;
 	unsigned int	old_size;
 	unsigned int	new_size;
 	int		 bsize;
@@ -1983,9 +1983,9 @@ cfs_hash_rehash_worker(cfs_workitem_t *wi)
 void cfs_hash_rehash_key(cfs_hash_t *hs, const void *old_key,
 			 void *new_key, struct hlist_node *hnode)
 {
-	cfs_hash_bd_t	bds[3];
-	cfs_hash_bd_t	old_bds[2];
-	cfs_hash_bd_t	new_bd;
+	struct cfs_hash_bd	bds[3];
+	struct cfs_hash_bd	old_bds[2];
+	struct cfs_hash_bd	new_bd;
 
 	LASSERT(!hlist_unhashed(hnode));
 
@@ -2089,7 +2089,7 @@ int cfs_hash_debug_str(cfs_hash_t *hs, struct seq_file *m)
 	 * Non-Uniform hash distribution:  128/125/0/0/0/0/2/1
 	 */
 	for (i = 0; i < cfs_hash_full_nbkt(hs); i++) {
-		cfs_hash_bd_t  bd;
+		struct cfs_hash_bd  bd;
 
 		bd.bd_bucket = cfs_hash_full_bkts(hs)[i];
 		cfs_hash_bd_lock(hs, &bd, 0);
diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c
index be125b98b7f0..b4d03d7e134b 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_dev.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c
@@ -297,7 +297,7 @@ static loff_t vvp_pgcache_id_pack(struct vvp_pgcache_id *id)
 		((__u64)id->vpi_bucket << PGC_OBJ_SHIFT);
 }
 
-static int vvp_pgcache_obj_get(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+static int vvp_pgcache_obj_get(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 			       struct hlist_node *hnode, void *data)
 {
 	struct vvp_pgcache_id   *id  = data;
diff --git a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
index 76352c0cca7d..c312b9e763a7 100644
--- a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
+++ b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
@@ -1422,7 +1422,7 @@ void lprocfs_init_ldlm_stats(struct lprocfs_stats *ldlm_stats)
 }
 EXPORT_SYMBOL(lprocfs_init_ldlm_stats);
 
-int lprocfs_exp_print_uuid(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+int lprocfs_exp_print_uuid(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 			   struct hlist_node *hnode, void *data)
 
 {
@@ -1453,7 +1453,7 @@ struct exp_hash_cb_data {
 	bool		first;
 };
 
-int lprocfs_exp_print_hash(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+int lprocfs_exp_print_hash(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 			   struct hlist_node *hnode, void *cb_data)
 
 {
diff --git a/drivers/staging/lustre/lustre/obdclass/lu_object.c b/drivers/staging/lustre/lustre/obdclass/lu_object.c
index e8f260781c0e..468498c6ad5c 100644
--- a/drivers/staging/lustre/lustre/obdclass/lu_object.c
+++ b/drivers/staging/lustre/lustre/obdclass/lu_object.c
@@ -71,7 +71,7 @@ void lu_object_put(const struct lu_env *env, struct lu_object *o)
 	struct lu_object_header *top;
 	struct lu_site	  *site;
 	struct lu_object	*orig;
-	cfs_hash_bd_t	    bd;
+	struct cfs_hash_bd	    bd;
 	const struct lu_fid     *fid;
 
 	top  = o->lo_header;
@@ -176,7 +176,7 @@ void lu_object_unhash(const struct lu_env *env, struct lu_object *o)
 	set_bit(LU_OBJECT_HEARD_BANSHEE, &top->loh_flags);
 	if (!test_and_set_bit(LU_OBJECT_UNHASHED, &top->loh_flags)) {
 		cfs_hash_t *obj_hash = o->lo_dev->ld_site->ls_obj_hash;
-		cfs_hash_bd_t bd;
+		struct cfs_hash_bd bd;
 
 		cfs_hash_bd_get_and_lock(obj_hash, &top->loh_fid, &bd, 1);
 		list_del_init(&top->loh_lru);
@@ -306,8 +306,8 @@ int lu_site_purge(const struct lu_env *env, struct lu_site *s, int nr)
 	struct lu_object_header *h;
 	struct lu_object_header *temp;
 	struct lu_site_bkt_data *bkt;
-	cfs_hash_bd_t	    bd;
-	cfs_hash_bd_t	    bd2;
+	struct cfs_hash_bd	    bd;
+	struct cfs_hash_bd	    bd2;
 	struct list_head	       dispose;
 	int		      did_sth;
 	int		      start;
@@ -526,7 +526,7 @@ int lu_object_invariant(const struct lu_object *o)
 EXPORT_SYMBOL(lu_object_invariant);
 
 static struct lu_object *htable_lookup(struct lu_site *s,
-				       cfs_hash_bd_t *bd,
+				       struct cfs_hash_bd *bd,
 				       const struct lu_fid *f,
 				       wait_queue_t *waiter,
 				       __u64 *version)
@@ -590,7 +590,7 @@ static struct lu_object *lu_object_new(const struct lu_env *env,
 {
 	struct lu_object	*o;
 	cfs_hash_t	      *hs;
-	cfs_hash_bd_t	    bd;
+	struct cfs_hash_bd	    bd;
 	struct lu_site_bkt_data *bkt;
 
 	o = lu_object_alloc(env, dev, f, conf);
@@ -619,7 +619,7 @@ static struct lu_object *lu_object_find_try(const struct lu_env *env,
 	struct lu_object      *shadow;
 	struct lu_site	*s;
 	cfs_hash_t	    *hs;
-	cfs_hash_bd_t	  bd;
+	struct cfs_hash_bd	  bd;
 	__u64		  version = 0;
 
 	/*
@@ -788,7 +788,7 @@ struct lu_site_print_arg {
 };
 
 static int
-lu_site_obj_print(cfs_hash_t *hs, cfs_hash_bd_t *bd,
+lu_site_obj_print(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 		  struct hlist_node *hnode, void *data)
 {
 	struct lu_site_print_arg *arg = (struct lu_site_print_arg *)data;
@@ -921,7 +921,7 @@ static void lu_obj_hop_get(cfs_hash_t *hs, struct hlist_node *hnode)
 	h = hlist_entry(hnode, struct lu_object_header, loh_hash);
 	if (atomic_add_return(1, &h->loh_ref) == 1) {
 		struct lu_site_bkt_data *bkt;
-		cfs_hash_bd_t	    bd;
+		struct cfs_hash_bd	    bd;
 
 		cfs_hash_bd_get(hs, &h->loh_fid, &bd);
 		bkt = cfs_hash_bd_extra_get(hs, &bd);
@@ -975,7 +975,7 @@ EXPORT_SYMBOL(lu_dev_del_linkage);
 int lu_site_init(struct lu_site *s, struct lu_device *top)
 {
 	struct lu_site_bkt_data *bkt;
-	cfs_hash_bd_t bd;
+	struct cfs_hash_bd bd;
 	char name[16];
 	int bits;
 	int i;
@@ -1791,7 +1791,7 @@ typedef struct lu_site_stats{
 static void lu_site_stats_get(cfs_hash_t *hs,
 			      lu_site_stats_t *stats, int populated)
 {
-	cfs_hash_bd_t bd;
+	struct cfs_hash_bd bd;
 	int	   i;
 
 	cfs_hash_for_each_bucket(hs, &bd, i) {
@@ -2073,7 +2073,7 @@ void lu_object_assign_fid(const struct lu_env *env, struct lu_object *o,
 	struct lu_object	*shadow;
 	wait_queue_t		 waiter;
 	cfs_hash_t		*hs;
-	cfs_hash_bd_t		 bd;
+	struct cfs_hash_bd	 bd;
 	__u64			 version = 0;
 
 	LASSERT(fid_is_zero(old));
-- 
cgit 


From 6da6eabe1038cb438460a8295a37270a8adebb19 Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Mon, 21 Oct 2013 18:16:26 -0700
Subject: staging: lustre: Remove typedef and update cfs_hash struct

Remove typedef keyword and rename the cfs_hash_t struct to
cfs_hash in libcfs_hash.h. These changes resolve the "Do
not add new typedefs" warning generated by checkpatch.pl
and meet kernel coding style.

Struct variables in other header and source files that
depend on libcfs_hash.h are updated as well.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../lustre/include/linux/libcfs/libcfs_hash.h      | 188 ++++++++++-----------
 drivers/staging/lustre/lustre/include/lu_object.h  |   2 +-
 drivers/staging/lustre/lustre/include/lustre_dlm.h |   2 +-
 .../staging/lustre/lustre/include/lustre_export.h  |   4 +-
 drivers/staging/lustre/lustre/include/lustre_net.h |   4 +-
 drivers/staging/lustre/lustre/include/obd.h        |  10 +-
 drivers/staging/lustre/lustre/ldlm/ldlm_flock.c    |   6 +-
 drivers/staging/lustre/lustre/ldlm/ldlm_lock.c     |   4 +-
 drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c    |   6 +-
 drivers/staging/lustre/lustre/ldlm/ldlm_request.c  |   4 +-
 drivers/staging/lustre/lustre/ldlm/ldlm_resource.c |  16 +-
 drivers/staging/lustre/lustre/libcfs/hash.c        | 174 +++++++++----------
 drivers/staging/lustre/lustre/llite/vvp_dev.c      |   2 +-
 drivers/staging/lustre/lustre/lov/lov_pool.c       |   6 +-
 drivers/staging/lustre/lustre/obdclass/cl_object.c |   6 +-
 drivers/staging/lustre/lustre/obdclass/genops.c    |   6 +-
 .../lustre/lustre/obdclass/lprocfs_status.c        |   6 +-
 drivers/staging/lustre/lustre/obdclass/lu_object.c |  18 +-
 .../staging/lustre/lustre/obdclass/obd_config.c    |  16 +-
 drivers/staging/lustre/lustre/osc/osc_quota.c      |   8 +-
 drivers/staging/lustre/lustre/ptlrpc/connection.c  |  10 +-
 21 files changed, 249 insertions(+), 249 deletions(-)

diff --git a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
index 61e4fcadf22f..9d5ee1a69c0c 100644
--- a/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
+++ b/drivers/staging/lustre/include/linux/libcfs/libcfs_hash.h
@@ -210,7 +210,7 @@ enum cfs_hash_tag {
  * locations; additions must take care to only insert into the new bucket.
  */
 
-typedef struct cfs_hash {
+struct cfs_hash {
 	/** serialize with rehash, or serialize all operations if
 	 * the hash-table has CFS_HASH_NO_BKTLOCK */
 	union cfs_hash_lock	     hs_lock;
@@ -272,7 +272,7 @@ typedef struct cfs_hash {
 #endif
 	/** name of htable */
 	char			hs_name[0];
-} cfs_hash_t;
+};
 
 typedef struct cfs_hash_lock_ops {
 	/** lock the hash table */
@@ -287,20 +287,20 @@ typedef struct cfs_hash_lock_ops {
 
 typedef struct cfs_hash_hlist_ops {
 	/** return hlist_head of hash-head of @bd */
-	struct hlist_head *(*hop_hhead)(cfs_hash_t *hs, struct cfs_hash_bd *bd);
+	struct hlist_head *(*hop_hhead)(struct cfs_hash *hs, struct cfs_hash_bd *bd);
 	/** return hash-head size */
-	int (*hop_hhead_size)(cfs_hash_t *hs);
+	int (*hop_hhead_size)(struct cfs_hash *hs);
 	/** add @hnode to hash-head of @bd */
-	int (*hop_hnode_add)(cfs_hash_t *hs,
+	int (*hop_hnode_add)(struct cfs_hash *hs,
 			     struct cfs_hash_bd *bd, struct hlist_node *hnode);
 	/** remove @hnode from hash-head of @bd */
-	int (*hop_hnode_del)(cfs_hash_t *hs,
+	int (*hop_hnode_del)(struct cfs_hash *hs,
 			     struct cfs_hash_bd *bd, struct hlist_node *hnode);
 } cfs_hash_hlist_ops_t;
 
 typedef struct cfs_hash_ops {
 	/** return hashed value from @key */
-	unsigned (*hs_hash)(cfs_hash_t *hs, const void *key, unsigned mask);
+	unsigned (*hs_hash)(struct cfs_hash *hs, const void *key, unsigned mask);
 	/** return key address of @hnode */
 	void *   (*hs_key)(struct hlist_node *hnode);
 	/** copy key from @hnode to @key */
@@ -313,13 +313,13 @@ typedef struct cfs_hash_ops {
 	/** return object address of @hnode, i.e: container_of(...hnode) */
 	void *   (*hs_object)(struct hlist_node *hnode);
 	/** get refcount of item, always called with holding bucket-lock */
-	void     (*hs_get)(cfs_hash_t *hs, struct hlist_node *hnode);
+	void     (*hs_get)(struct cfs_hash *hs, struct hlist_node *hnode);
 	/** release refcount of item */
-	void     (*hs_put)(cfs_hash_t *hs, struct hlist_node *hnode);
+	void     (*hs_put)(struct cfs_hash *hs, struct hlist_node *hnode);
 	/** release refcount of item, always called with holding bucket-lock */
-	void     (*hs_put_locked)(cfs_hash_t *hs, struct hlist_node *hnode);
+	void     (*hs_put_locked)(struct cfs_hash *hs, struct hlist_node *hnode);
 	/** it's called before removing of @hnode */
-	void     (*hs_exit)(cfs_hash_t *hs, struct hlist_node *hnode);
+	void     (*hs_exit)(struct cfs_hash *hs, struct hlist_node *hnode);
 } cfs_hash_ops_t;
 
 /** total number of buckets in @hs */
@@ -340,41 +340,41 @@ typedef struct cfs_hash_ops {
 #define CFS_HASH_RH_NHLIST(hs)  (1U << (hs)->hs_rehash_bits)
 
 static inline int
-cfs_hash_with_no_lock(cfs_hash_t *hs)
+cfs_hash_with_no_lock(struct cfs_hash *hs)
 {
 	/* caller will serialize all operations for this hash-table */
 	return (hs->hs_flags & CFS_HASH_NO_LOCK) != 0;
 }
 
 static inline int
-cfs_hash_with_no_bktlock(cfs_hash_t *hs)
+cfs_hash_with_no_bktlock(struct cfs_hash *hs)
 {
 	/* no bucket lock, one single lock to protect the hash-table */
 	return (hs->hs_flags & CFS_HASH_NO_BKTLOCK) != 0;
 }
 
 static inline int
-cfs_hash_with_rw_bktlock(cfs_hash_t *hs)
+cfs_hash_with_rw_bktlock(struct cfs_hash *hs)
 {
 	/* rwlock to protect hash bucket */
 	return (hs->hs_flags & CFS_HASH_RW_BKTLOCK) != 0;
 }
 
 static inline int
-cfs_hash_with_spin_bktlock(cfs_hash_t *hs)
+cfs_hash_with_spin_bktlock(struct cfs_hash *hs)
 {
 	/* spinlock to protect hash bucket */
 	return (hs->hs_flags & CFS_HASH_SPIN_BKTLOCK) != 0;
 }
 
 static inline int
-cfs_hash_with_add_tail(cfs_hash_t *hs)
+cfs_hash_with_add_tail(struct cfs_hash *hs)
 {
 	return (hs->hs_flags & CFS_HASH_ADD_TAIL) != 0;
 }
 
 static inline int
-cfs_hash_with_no_itemref(cfs_hash_t *hs)
+cfs_hash_with_no_itemref(struct cfs_hash *hs)
 {
 	/* hash-table doesn't keep refcount on item,
 	 * item can't be removed from hash unless it's
@@ -383,73 +383,73 @@ cfs_hash_with_no_itemref(cfs_hash_t *hs)
 }
 
 static inline int
-cfs_hash_with_bigname(cfs_hash_t *hs)
+cfs_hash_with_bigname(struct cfs_hash *hs)
 {
 	return (hs->hs_flags & CFS_HASH_BIGNAME) != 0;
 }
 
 static inline int
-cfs_hash_with_counter(cfs_hash_t *hs)
+cfs_hash_with_counter(struct cfs_hash *hs)
 {
 	return (hs->hs_flags & CFS_HASH_COUNTER) != 0;
 }
 
 static inline int
-cfs_hash_with_rehash(cfs_hash_t *hs)
+cfs_hash_with_rehash(struct cfs_hash *hs)
 {
 	return (hs->hs_flags & CFS_HASH_REHASH) != 0;
 }
 
 static inline int
-cfs_hash_with_rehash_key(cfs_hash_t *hs)
+cfs_hash_with_rehash_key(struct cfs_hash *hs)
 {
 	return (hs->hs_flags & CFS_HASH_REHASH_KEY) != 0;
 }
 
 static inline int
-cfs_hash_with_shrink(cfs_hash_t *hs)
+cfs_hash_with_shrink(struct cfs_hash *hs)
 {
 	return (hs->hs_flags & CFS_HASH_SHRINK) != 0;
 }
 
 static inline int
-cfs_hash_with_assert_empty(cfs_hash_t *hs)
+cfs_hash_with_assert_empty(struct cfs_hash *hs)
 {
 	return (hs->hs_flags & CFS_HASH_ASSERT_EMPTY) != 0;
 }
 
 static inline int
-cfs_hash_with_depth(cfs_hash_t *hs)
+cfs_hash_with_depth(struct cfs_hash *hs)
 {
 	return (hs->hs_flags & CFS_HASH_DEPTH) != 0;
 }
 
 static inline int
-cfs_hash_with_nblk_change(cfs_hash_t *hs)
+cfs_hash_with_nblk_change(struct cfs_hash *hs)
 {
 	return (hs->hs_flags & CFS_HASH_NBLK_CHANGE) != 0;
 }
 
 static inline int
-cfs_hash_is_exiting(cfs_hash_t *hs)
+cfs_hash_is_exiting(struct cfs_hash *hs)
 {       /* cfs_hash_destroy is called */
 	return hs->hs_exiting;
 }
 
 static inline int
-cfs_hash_is_rehashing(cfs_hash_t *hs)
+cfs_hash_is_rehashing(struct cfs_hash *hs)
 {       /* rehash is launched */
 	return hs->hs_rehash_bits != 0;
 }
 
 static inline int
-cfs_hash_is_iterating(cfs_hash_t *hs)
+cfs_hash_is_iterating(struct cfs_hash *hs)
 {       /* someone is calling cfs_hash_for_each_* */
 	return hs->hs_iterating || hs->hs_iterators != 0;
 }
 
 static inline int
-cfs_hash_bkt_size(cfs_hash_t *hs)
+cfs_hash_bkt_size(struct cfs_hash *hs)
 {
 	return offsetof(struct cfs_hash_bucket, hsb_head[0]) +
 	       hs->hs_hops->hop_hhead_size(hs) * CFS_HASH_BKT_NHLIST(hs) +
@@ -459,19 +459,19 @@ cfs_hash_bkt_size(cfs_hash_t *hs)
 #define CFS_HOP(hs, op)	   (hs)->hs_ops->hs_ ## op
 
 static inline unsigned
-cfs_hash_id(cfs_hash_t *hs, const void *key, unsigned mask)
+cfs_hash_id(struct cfs_hash *hs, const void *key, unsigned mask)
 {
 	return CFS_HOP(hs, hash)(hs, key, mask);
 }
 
 static inline void *
-cfs_hash_key(cfs_hash_t *hs, struct hlist_node *hnode)
+cfs_hash_key(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	return CFS_HOP(hs, key)(hnode);
 }
 
 static inline void
-cfs_hash_keycpy(cfs_hash_t *hs, struct hlist_node *hnode, void *key)
+cfs_hash_keycpy(struct cfs_hash *hs, struct hlist_node *hnode, void *key)
 {
 	if (CFS_HOP(hs, keycpy) != NULL)
 		CFS_HOP(hs, keycpy)(hnode, key);
@@ -481,25 +481,25 @@ cfs_hash_keycpy(cfs_hash_t *hs, struct hlist_node *hnode, void *key)
  * Returns 1 on a match,
  */
 static inline int
-cfs_hash_keycmp(cfs_hash_t *hs, const void *key, struct hlist_node *hnode)
+cfs_hash_keycmp(struct cfs_hash *hs, const void *key, struct hlist_node *hnode)
 {
 	return CFS_HOP(hs, keycmp)(key, hnode);
 }
 
 static inline void *
-cfs_hash_object(cfs_hash_t *hs, struct hlist_node *hnode)
+cfs_hash_object(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	return CFS_HOP(hs, object)(hnode);
 }
 
 static inline void
-cfs_hash_get(cfs_hash_t *hs, struct hlist_node *hnode)
+cfs_hash_get(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	return CFS_HOP(hs, get)(hs, hnode);
 }
 
 static inline void
-cfs_hash_put_locked(cfs_hash_t *hs, struct hlist_node *hnode)
+cfs_hash_put_locked(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	LASSERT(CFS_HOP(hs, put_locked) != NULL);
 
@@ -507,7 +507,7 @@ cfs_hash_put_locked(cfs_hash_t *hs, struct hlist_node *hnode)
 }
 
 static inline void
-cfs_hash_put(cfs_hash_t *hs, struct hlist_node *hnode)
+cfs_hash_put(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	LASSERT(CFS_HOP(hs, put) != NULL);
 
@@ -515,36 +515,36 @@ cfs_hash_put(cfs_hash_t *hs, struct hlist_node *hnode)
 }
 
 static inline void
-cfs_hash_exit(cfs_hash_t *hs, struct hlist_node *hnode)
+cfs_hash_exit(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	if (CFS_HOP(hs, exit))
 		CFS_HOP(hs, exit)(hs, hnode);
 }
 
-static inline void cfs_hash_lock(cfs_hash_t *hs, int excl)
+static inline void cfs_hash_lock(struct cfs_hash *hs, int excl)
 {
 	hs->hs_lops->hs_lock(&hs->hs_lock, excl);
 }
 
-static inline void cfs_hash_unlock(cfs_hash_t *hs, int excl)
+static inline void cfs_hash_unlock(struct cfs_hash *hs, int excl)
 {
 	hs->hs_lops->hs_unlock(&hs->hs_lock, excl);
 }
 
-static inline int cfs_hash_dec_and_lock(cfs_hash_t *hs,
+static inline int cfs_hash_dec_and_lock(struct cfs_hash *hs,
 					atomic_t *condition)
 {
 	LASSERT(cfs_hash_with_no_bktlock(hs));
 	return atomic_dec_and_lock(condition, &hs->hs_lock.spin);
 }
 
-static inline void cfs_hash_bd_lock(cfs_hash_t *hs,
+static inline void cfs_hash_bd_lock(struct cfs_hash *hs,
 				    struct cfs_hash_bd *bd, int excl)
 {
 	hs->hs_lops->hs_bkt_lock(&bd->bd_bucket->hsb_lock, excl);
 }
 
-static inline void cfs_hash_bd_unlock(cfs_hash_t *hs,
+static inline void cfs_hash_bd_unlock(struct cfs_hash *hs,
 				      struct cfs_hash_bd *bd, int excl)
 {
 	hs->hs_lops->hs_bkt_unlock(&bd->bd_bucket->hsb_lock, excl);
@@ -554,21 +554,21 @@ static inline void cfs_hash_bd_unlock(cfs_hash_t *hs,
  * operations on cfs_hash bucket (bd: bucket descriptor),
  * they are normally for hash-table without rehash
  */
-void cfs_hash_bd_get(cfs_hash_t *hs, const void *key, struct cfs_hash_bd *bd);
+void cfs_hash_bd_get(struct cfs_hash *hs, const void *key, struct cfs_hash_bd *bd);
 
-static inline void cfs_hash_bd_get_and_lock(cfs_hash_t *hs, const void *key,
+static inline void cfs_hash_bd_get_and_lock(struct cfs_hash *hs, const void *key,
 					    struct cfs_hash_bd *bd, int excl)
 {
 	cfs_hash_bd_get(hs, key, bd);
 	cfs_hash_bd_lock(hs, bd, excl);
 }
 
-static inline unsigned cfs_hash_bd_index_get(cfs_hash_t *hs, struct cfs_hash_bd *bd)
+static inline unsigned cfs_hash_bd_index_get(struct cfs_hash *hs, struct cfs_hash_bd *bd)
 {
 	return bd->bd_offset | (bd->bd_bucket->hsb_index << hs->hs_bkt_bits);
 }
 
-static inline void cfs_hash_bd_index_set(cfs_hash_t *hs,
+static inline void cfs_hash_bd_index_set(struct cfs_hash *hs,
 					 unsigned index, struct cfs_hash_bd *bd)
 {
 	bd->bd_bucket = hs->hs_buckets[index >> hs->hs_bkt_bits];
@@ -576,7 +576,7 @@ static inline void cfs_hash_bd_index_set(cfs_hash_t *hs,
 }
 
 static inline void *
-cfs_hash_bd_extra_get(cfs_hash_t *hs, struct cfs_hash_bd *bd)
+cfs_hash_bd_extra_get(struct cfs_hash *hs, struct cfs_hash_bd *bd)
 {
 	return (void *)bd->bd_bucket +
 	       cfs_hash_bkt_size(hs) - hs->hs_extra_bytes;
@@ -614,14 +614,14 @@ cfs_hash_bd_compare(struct cfs_hash_bd *bd1, struct cfs_hash_bd *bd2)
 	return 0;
 }
 
-void cfs_hash_bd_add_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+void cfs_hash_bd_add_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 			    struct hlist_node *hnode);
-void cfs_hash_bd_del_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+void cfs_hash_bd_del_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 			    struct hlist_node *hnode);
-void cfs_hash_bd_move_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd_old,
+void cfs_hash_bd_move_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd_old,
 			     struct cfs_hash_bd *bd_new, struct hlist_node *hnode);
 
-static inline int cfs_hash_bd_dec_and_lock(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+static inline int cfs_hash_bd_dec_and_lock(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 					   atomic_t *condition)
 {
 	LASSERT(cfs_hash_with_spin_bktlock(hs));
@@ -629,21 +629,21 @@ static inline int cfs_hash_bd_dec_and_lock(cfs_hash_t *hs, struct cfs_hash_bd *b
 				       &bd->bd_bucket->hsb_lock.spin);
 }
 
-static inline struct hlist_head *cfs_hash_bd_hhead(cfs_hash_t *hs,
+static inline struct hlist_head *cfs_hash_bd_hhead(struct cfs_hash *hs,
 						  struct cfs_hash_bd *bd)
 {
 	return hs->hs_hops->hop_hhead(hs, bd);
 }
 
-struct hlist_node *cfs_hash_bd_lookup_locked(cfs_hash_t *hs,
+struct hlist_node *cfs_hash_bd_lookup_locked(struct cfs_hash *hs,
 					    struct cfs_hash_bd *bd, const void *key);
-struct hlist_node *cfs_hash_bd_peek_locked(cfs_hash_t *hs,
+struct hlist_node *cfs_hash_bd_peek_locked(struct cfs_hash *hs,
 					  struct cfs_hash_bd *bd, const void *key);
-struct hlist_node *cfs_hash_bd_findadd_locked(cfs_hash_t *hs,
+struct hlist_node *cfs_hash_bd_findadd_locked(struct cfs_hash *hs,
 					     struct cfs_hash_bd *bd, const void *key,
 					     struct hlist_node *hnode,
 					     int insist_add);
-struct hlist_node *cfs_hash_bd_finddel_locked(cfs_hash_t *hs,
+struct hlist_node *cfs_hash_bd_finddel_locked(struct cfs_hash *hs,
 					     struct cfs_hash_bd *bd, const void *key,
 					     struct hlist_node *hnode);
 
@@ -651,87 +651,87 @@ struct hlist_node *cfs_hash_bd_finddel_locked(cfs_hash_t *hs,
  * operations on cfs_hash bucket (bd: bucket descriptor),
  * they are safe for hash-table with rehash
  */
-void cfs_hash_dual_bd_get(cfs_hash_t *hs, const void *key, struct cfs_hash_bd *bds);
-void cfs_hash_dual_bd_lock(cfs_hash_t *hs, struct cfs_hash_bd *bds, int excl);
-void cfs_hash_dual_bd_unlock(cfs_hash_t *hs, struct cfs_hash_bd *bds, int excl);
+void cfs_hash_dual_bd_get(struct cfs_hash *hs, const void *key, struct cfs_hash_bd *bds);
+void cfs_hash_dual_bd_lock(struct cfs_hash *hs, struct cfs_hash_bd *bds, int excl);
+void cfs_hash_dual_bd_unlock(struct cfs_hash *hs, struct cfs_hash_bd *bds, int excl);
 
-static inline void cfs_hash_dual_bd_get_and_lock(cfs_hash_t *hs, const void *key,
+static inline void cfs_hash_dual_bd_get_and_lock(struct cfs_hash *hs, const void *key,
 						 struct cfs_hash_bd *bds, int excl)
 {
 	cfs_hash_dual_bd_get(hs, key, bds);
 	cfs_hash_dual_bd_lock(hs, bds, excl);
 }
 
-struct hlist_node *cfs_hash_dual_bd_lookup_locked(cfs_hash_t *hs,
+struct hlist_node *cfs_hash_dual_bd_lookup_locked(struct cfs_hash *hs,
 						 struct cfs_hash_bd *bds,
 						 const void *key);
-struct hlist_node *cfs_hash_dual_bd_findadd_locked(cfs_hash_t *hs,
+struct hlist_node *cfs_hash_dual_bd_findadd_locked(struct cfs_hash *hs,
 						  struct cfs_hash_bd *bds,
 						  const void *key,
 						  struct hlist_node *hnode,
 						  int insist_add);
-struct hlist_node *cfs_hash_dual_bd_finddel_locked(cfs_hash_t *hs,
+struct hlist_node *cfs_hash_dual_bd_finddel_locked(struct cfs_hash *hs,
 						  struct cfs_hash_bd *bds,
 						  const void *key,
 						  struct hlist_node *hnode);
 
 /* Hash init/cleanup functions */
-cfs_hash_t *cfs_hash_create(char *name, unsigned cur_bits, unsigned max_bits,
+struct cfs_hash *cfs_hash_create(char *name, unsigned cur_bits, unsigned max_bits,
 			    unsigned bkt_bits, unsigned extra_bytes,
 			    unsigned min_theta, unsigned max_theta,
 			    cfs_hash_ops_t *ops, unsigned flags);
 
-cfs_hash_t *cfs_hash_getref(cfs_hash_t *hs);
-void cfs_hash_putref(cfs_hash_t *hs);
+struct cfs_hash *cfs_hash_getref(struct cfs_hash *hs);
+void cfs_hash_putref(struct cfs_hash *hs);
 
 /* Hash addition functions */
-void cfs_hash_add(cfs_hash_t *hs, const void *key,
+void cfs_hash_add(struct cfs_hash *hs, const void *key,
 		  struct hlist_node *hnode);
-int cfs_hash_add_unique(cfs_hash_t *hs, const void *key,
+int cfs_hash_add_unique(struct cfs_hash *hs, const void *key,
 			struct hlist_node *hnode);
-void *cfs_hash_findadd_unique(cfs_hash_t *hs, const void *key,
+void *cfs_hash_findadd_unique(struct cfs_hash *hs, const void *key,
 			      struct hlist_node *hnode);
 
 /* Hash deletion functions */
-void *cfs_hash_del(cfs_hash_t *hs, const void *key, struct hlist_node *hnode);
-void *cfs_hash_del_key(cfs_hash_t *hs, const void *key);
+void *cfs_hash_del(struct cfs_hash *hs, const void *key, struct hlist_node *hnode);
+void *cfs_hash_del_key(struct cfs_hash *hs, const void *key);
 
 /* Hash lookup/for_each functions */
 #define CFS_HASH_LOOP_HOG       1024
 
-typedef int (*cfs_hash_for_each_cb_t)(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+typedef int (*cfs_hash_for_each_cb_t)(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 				      struct hlist_node *node, void *data);
-void *cfs_hash_lookup(cfs_hash_t *hs, const void *key);
-void cfs_hash_for_each(cfs_hash_t *hs, cfs_hash_for_each_cb_t, void *data);
-void cfs_hash_for_each_safe(cfs_hash_t *hs, cfs_hash_for_each_cb_t, void *data);
-int  cfs_hash_for_each_nolock(cfs_hash_t *hs,
+void *cfs_hash_lookup(struct cfs_hash *hs, const void *key);
+void cfs_hash_for_each(struct cfs_hash *hs, cfs_hash_for_each_cb_t, void *data);
+void cfs_hash_for_each_safe(struct cfs_hash *hs, cfs_hash_for_each_cb_t, void *data);
+int  cfs_hash_for_each_nolock(struct cfs_hash *hs,
 			      cfs_hash_for_each_cb_t, void *data);
-int  cfs_hash_for_each_empty(cfs_hash_t *hs,
+int  cfs_hash_for_each_empty(struct cfs_hash *hs,
 			     cfs_hash_for_each_cb_t, void *data);
-void cfs_hash_for_each_key(cfs_hash_t *hs, const void *key,
+void cfs_hash_for_each_key(struct cfs_hash *hs, const void *key,
 			   cfs_hash_for_each_cb_t, void *data);
 typedef int (*cfs_hash_cond_opt_cb_t)(void *obj, void *data);
-void cfs_hash_cond_del(cfs_hash_t *hs, cfs_hash_cond_opt_cb_t, void *data);
+void cfs_hash_cond_del(struct cfs_hash *hs, cfs_hash_cond_opt_cb_t, void *data);
 
-void cfs_hash_hlist_for_each(cfs_hash_t *hs, unsigned hindex,
+void cfs_hash_hlist_for_each(struct cfs_hash *hs, unsigned hindex,
 			     cfs_hash_for_each_cb_t, void *data);
-int  cfs_hash_is_empty(cfs_hash_t *hs);
-__u64 cfs_hash_size_get(cfs_hash_t *hs);
+int  cfs_hash_is_empty(struct cfs_hash *hs);
+__u64 cfs_hash_size_get(struct cfs_hash *hs);
 
 /*
  * Rehash - Theta is calculated to be the average chained
  * hash depth assuming a perfectly uniform hash function.
  */
-void cfs_hash_rehash_cancel_locked(cfs_hash_t *hs);
-void cfs_hash_rehash_cancel(cfs_hash_t *hs);
-int  cfs_hash_rehash(cfs_hash_t *hs, int do_rehash);
-void cfs_hash_rehash_key(cfs_hash_t *hs, const void *old_key,
+void cfs_hash_rehash_cancel_locked(struct cfs_hash *hs);
+void cfs_hash_rehash_cancel(struct cfs_hash *hs);
+int  cfs_hash_rehash(struct cfs_hash *hs, int do_rehash);
+void cfs_hash_rehash_key(struct cfs_hash *hs, const void *old_key,
 			 void *new_key, struct hlist_node *hnode);
 
 #if CFS_HASH_DEBUG_LEVEL > CFS_HASH_DEBUG_1
 /* Validate hnode references the correct key */
 static inline void
-cfs_hash_key_validate(cfs_hash_t *hs, const void *key,
+cfs_hash_key_validate(struct cfs_hash *hs, const void *key,
 		      struct hlist_node *hnode)
 {
 	LASSERT(cfs_hash_keycmp(hs, key, hnode));
@@ -739,7 +739,7 @@ cfs_hash_key_validate(cfs_hash_t *hs, const void *key,
 
 /* Validate hnode is in the correct bucket */
 static inline void
-cfs_hash_bucket_validate(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+cfs_hash_bucket_validate(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 			 struct hlist_node *hnode)
 {
 	struct cfs_hash_bd   bds[2];
@@ -752,11 +752,11 @@ cfs_hash_bucket_validate(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 #else /* CFS_HASH_DEBUG_LEVEL > CFS_HASH_DEBUG_1 */
 
 static inline void
-cfs_hash_key_validate(cfs_hash_t *hs, const void *key,
+cfs_hash_key_validate(struct cfs_hash *hs, const void *key,
 		      struct hlist_node *hnode) {}
 
 static inline void
-cfs_hash_bucket_validate(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+cfs_hash_bucket_validate(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 			 struct hlist_node *hnode) {}
 
 #endif /* CFS_HASH_DEBUG_LEVEL */
@@ -778,13 +778,13 @@ static inline int __cfs_hash_theta_frac(int theta)
 	       (__cfs_hash_theta_int(theta) * 1000);
 }
 
-static inline int __cfs_hash_theta(cfs_hash_t *hs)
+static inline int __cfs_hash_theta(struct cfs_hash *hs)
 {
 	return (atomic_read(&hs->hs_count) <<
 		CFS_HASH_THETA_BITS) >> hs->hs_cur_bits;
 }
 
-static inline void __cfs_hash_set_theta(cfs_hash_t *hs, int min, int max)
+static inline void __cfs_hash_set_theta(struct cfs_hash *hs, int min, int max)
 {
 	LASSERT(min < max);
 	hs->hs_min_theta = (__u16)min;
@@ -794,7 +794,7 @@ static inline void __cfs_hash_set_theta(cfs_hash_t *hs, int min, int max)
 /* Generic debug formatting routines mainly for proc handler */
 struct seq_file;
 int cfs_hash_debug_header(struct seq_file *m);
-int cfs_hash_debug_str(cfs_hash_t *hs, struct seq_file *m);
+int cfs_hash_debug_str(struct cfs_hash *hs, struct seq_file *m);
 
 /*
  * Generic djb2 hash algorithm for character arrays.
diff --git a/drivers/staging/lustre/lustre/include/lu_object.h b/drivers/staging/lustre/lustre/include/lu_object.h
index 478cd35ea7a1..d5b8225ef1a7 100644
--- a/drivers/staging/lustre/lustre/include/lu_object.h
+++ b/drivers/staging/lustre/lustre/include/lu_object.h
@@ -622,7 +622,7 @@ struct lu_site {
 	/**
 	 * objects hash table
 	 */
-	cfs_hash_t	       *ls_obj_hash;
+	struct cfs_hash	       *ls_obj_hash;
 	/**
 	 * index of bucket on hash table while purging
 	 */
diff --git a/drivers/staging/lustre/lustre/include/lustre_dlm.h b/drivers/staging/lustre/lustre/include/lustre_dlm.h
index 122441f45a68..bc2b82ffae92 100644
--- a/drivers/staging/lustre/lustre/include/lustre_dlm.h
+++ b/drivers/staging/lustre/lustre/include/lustre_dlm.h
@@ -375,7 +375,7 @@ struct ldlm_namespace {
 	ldlm_side_t		ns_client;
 
 	/** Resource hash table for namespace. */
-	cfs_hash_t		*ns_rs_hash;
+	struct cfs_hash		*ns_rs_hash;
 
 	/** serialize */
 	spinlock_t		ns_lock;
diff --git a/drivers/staging/lustre/lustre/include/lustre_export.h b/drivers/staging/lustre/lustre/include/lustre_export.h
index d61c020a4643..2feb38b51af2 100644
--- a/drivers/staging/lustre/lustre/include/lustre_export.h
+++ b/drivers/staging/lustre/lustre/include/lustre_export.h
@@ -197,12 +197,12 @@ struct obd_export {
 	/** Connection count value from last succesful reconnect rpc */
 	__u32		     exp_conn_cnt;
 	/** Hash list of all ldlm locks granted on this export */
-	cfs_hash_t	       *exp_lock_hash;
+	struct cfs_hash	       *exp_lock_hash;
 	/**
 	 * Hash list for Posix lock deadlock detection, added with
 	 * ldlm_lock::l_exp_flock_hash.
 	 */
-	cfs_hash_t	       *exp_flock_hash;
+	struct cfs_hash	       *exp_flock_hash;
 	struct list_head		exp_outstanding_replies;
 	struct list_head		exp_uncommitted_replies;
 	spinlock_t		  exp_uncommitted_replies_lock;
diff --git a/drivers/staging/lustre/lustre/include/lustre_net.h b/drivers/staging/lustre/lustre/include/lustre_net.h
index cf2b90d1d08b..72edf01b58a2 100644
--- a/drivers/staging/lustre/lustre/include/lustre_net.h
+++ b/drivers/staging/lustre/lustre/include/lustre_net.h
@@ -1427,7 +1427,7 @@ struct nrs_fifo_req {
 struct nrs_crrn_net {
 	struct ptlrpc_nrs_resource	cn_res;
 	cfs_binheap_t		       *cn_binheap;
-	cfs_hash_t		       *cn_cli_hash;
+	struct cfs_hash		       *cn_cli_hash;
 	/**
 	 * Used when a new scheduling round commences, in order to synchronize
 	 * all clients with the new round number.
@@ -1568,7 +1568,7 @@ struct nrs_orr_key {
 struct nrs_orr_data {
 	struct ptlrpc_nrs_resource	od_res;
 	cfs_binheap_t		       *od_binheap;
-	cfs_hash_t		       *od_obj_hash;
+	struct cfs_hash		       *od_obj_hash;
 	struct kmem_cache		       *od_cache;
 	/**
 	 * Used when a new scheduling round commences, in order to synchronize
diff --git a/drivers/staging/lustre/lustre/include/obd.h b/drivers/staging/lustre/lustre/include/obd.h
index 4fd4af9f29c9..d0aea15b7c39 100644
--- a/drivers/staging/lustre/lustre/include/obd.h
+++ b/drivers/staging/lustre/lustre/include/obd.h
@@ -429,7 +429,7 @@ struct client_obd {
 	/* ptlrpc work for writeback in ptlrpcd context */
 	void		    *cl_writeback_work;
 	/* hash tables for osc_quota_info */
-	cfs_hash_t	      *cl_quota_hash[MAXQUOTAS];
+	struct cfs_hash	      *cl_quota_hash[MAXQUOTAS];
 };
 #define obd2cli_tgt(obd) ((char *)(obd)->u.cli.cl_target_uuid.uuid)
 
@@ -556,7 +556,7 @@ struct lov_obd {
 	__u32		   lov_tgt_size;   /* size of tgts array */
 	int		     lov_connects;
 	int		     lov_pool_count;
-	cfs_hash_t	     *lov_pools_hash_body; /* used for key access */
+	struct cfs_hash	     *lov_pools_hash_body; /* used for key access */
 	struct list_head	      lov_pool_list; /* used for sequential access */
 	struct proc_dir_entry   *lov_pool_proc_entry;
 	enum lustre_sec_part    lov_sp_me;
@@ -855,11 +855,11 @@ struct obd_device {
 	 * protection of other bits using _bh lock */
 	unsigned long obd_recovery_expired:1;
 	/* uuid-export hash body */
-	cfs_hash_t	     *obd_uuid_hash;
+	struct cfs_hash	     *obd_uuid_hash;
 	/* nid-export hash body */
-	cfs_hash_t	     *obd_nid_hash;
+	struct cfs_hash	     *obd_nid_hash;
 	/* nid stats body */
-	cfs_hash_t	     *obd_nid_stats_hash;
+	struct cfs_hash	     *obd_nid_stats_hash;
 	struct list_head	      obd_nid_stats;
 	atomic_t	    obd_refcount;
 	wait_queue_head_t	     obd_refcount_waitq;
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
index c68ed2766333..39fcdacc51ed 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_flock.c
@@ -745,7 +745,7 @@ void ldlm_flock_policy_local_to_wire(const ldlm_policy_data_t *lpolicy,
  * Export handle<->flock hash operations.
  */
 static unsigned
-ldlm_export_flock_hash(cfs_hash_t *hs, const void *key, unsigned mask)
+ldlm_export_flock_hash(struct cfs_hash *hs, const void *key, unsigned mask)
 {
 	return cfs_hash_u64_hash(*(__u64 *)key, mask);
 }
@@ -772,7 +772,7 @@ ldlm_export_flock_object(struct hlist_node *hnode)
 }
 
 static void
-ldlm_export_flock_get(cfs_hash_t *hs, struct hlist_node *hnode)
+ldlm_export_flock_get(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	struct ldlm_lock *lock;
 	struct ldlm_flock *flock;
@@ -787,7 +787,7 @@ ldlm_export_flock_get(cfs_hash_t *hs, struct hlist_node *hnode)
 }
 
 static void
-ldlm_export_flock_put(cfs_hash_t *hs, struct hlist_node *hnode)
+ldlm_export_flock_put(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	struct ldlm_lock *lock;
 	struct ldlm_flock *flock;
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
index 98f809376e78..3900a69742fc 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lock.c
@@ -1891,7 +1891,7 @@ static int reprocess_one_queue(struct ldlm_resource *res, void *closure)
 	return LDLM_ITER_CONTINUE;
 }
 
-static int ldlm_reprocess_res(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+static int ldlm_reprocess_res(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 			      struct hlist_node *hnode, void *arg)
 {
 	struct ldlm_resource *res = cfs_hash_object(hs, hnode);
@@ -2040,7 +2040,7 @@ struct export_cl_data {
  * Iterator function for ldlm_cancel_locks_for_export.
  * Cancels passed locks.
  */
-int ldlm_cancel_locks_for_export_cb(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+int ldlm_cancel_locks_for_export_cb(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 				    struct hlist_node *hnode, void *data)
 
 {
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
index a100a0b96381..fde9bcd1d48d 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_lockd.c
@@ -937,7 +937,7 @@ EXPORT_SYMBOL(ldlm_put_ref);
  * Export handle<->lock hash operations.
  */
 static unsigned
-ldlm_export_lock_hash(cfs_hash_t *hs, const void *key, unsigned mask)
+ldlm_export_lock_hash(struct cfs_hash *hs, const void *key, unsigned mask)
 {
 	return cfs_hash_u64_hash(((struct lustre_handle *)key)->cookie, mask);
 }
@@ -973,7 +973,7 @@ ldlm_export_lock_object(struct hlist_node *hnode)
 }
 
 static void
-ldlm_export_lock_get(cfs_hash_t *hs, struct hlist_node *hnode)
+ldlm_export_lock_get(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	struct ldlm_lock *lock;
 
@@ -982,7 +982,7 @@ ldlm_export_lock_get(cfs_hash_t *hs, struct hlist_node *hnode)
 }
 
 static void
-ldlm_export_lock_put(cfs_hash_t *hs, struct hlist_node *hnode)
+ldlm_export_lock_put(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	struct ldlm_lock *lock;
 
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
index 2512b2984f24..c3b6ad55d39b 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
@@ -1925,7 +1925,7 @@ struct ldlm_cli_cancel_arg {
 	void   *lc_opaque;
 };
 
-static int ldlm_cli_hash_cancel_unused(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+static int ldlm_cli_hash_cancel_unused(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 				       struct hlist_node *hnode, void *arg)
 {
 	struct ldlm_resource	   *res = cfs_hash_object(hs, hnode);
@@ -2023,7 +2023,7 @@ static int ldlm_iter_helper(struct ldlm_lock *lock, void *closure)
 	return helper->iter(lock, helper->closure);
 }
 
-static int ldlm_res_iter_helper(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+static int ldlm_res_iter_helper(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 				struct hlist_node *hnode, void *arg)
 
 {
diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
index f50af90118fb..77e022bf8bcc 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_resource.c
@@ -389,7 +389,7 @@ int ldlm_namespace_proc_register(struct ldlm_namespace *ns)
 
 #endif /* LPROCFS */
 
-static unsigned ldlm_res_hop_hash(cfs_hash_t *hs,
+static unsigned ldlm_res_hop_hash(struct cfs_hash *hs,
 				  const void *key, unsigned mask)
 {
 	const struct ldlm_res_id     *id  = key;
@@ -401,7 +401,7 @@ static unsigned ldlm_res_hop_hash(cfs_hash_t *hs,
 	return val & mask;
 }
 
-static unsigned ldlm_res_hop_fid_hash(cfs_hash_t *hs,
+static unsigned ldlm_res_hop_fid_hash(struct cfs_hash *hs,
 				      const void *key, unsigned mask)
 {
 	const struct ldlm_res_id *id = key;
@@ -453,7 +453,7 @@ static void *ldlm_res_hop_object(struct hlist_node *hnode)
 	return hlist_entry(hnode, struct ldlm_resource, lr_hash);
 }
 
-static void ldlm_res_hop_get_locked(cfs_hash_t *hs, struct hlist_node *hnode)
+static void ldlm_res_hop_get_locked(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	struct ldlm_resource *res;
 
@@ -461,7 +461,7 @@ static void ldlm_res_hop_get_locked(cfs_hash_t *hs, struct hlist_node *hnode)
 	ldlm_resource_getref(res);
 }
 
-static void ldlm_res_hop_put_locked(cfs_hash_t *hs, struct hlist_node *hnode)
+static void ldlm_res_hop_put_locked(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	struct ldlm_resource *res;
 
@@ -470,7 +470,7 @@ static void ldlm_res_hop_put_locked(cfs_hash_t *hs, struct hlist_node *hnode)
 	ldlm_resource_putref_locked(res);
 }
 
-static void ldlm_res_hop_put(cfs_hash_t *hs, struct hlist_node *hnode)
+static void ldlm_res_hop_put(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	struct ldlm_resource *res;
 
@@ -743,7 +743,7 @@ static void cleanup_resource(struct ldlm_resource *res, struct list_head *q,
 	} while (1);
 }
 
-static int ldlm_resource_clean(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+static int ldlm_resource_clean(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 			       struct hlist_node *hnode, void *arg)
 {
 	struct ldlm_resource *res = cfs_hash_object(hs, hnode);
@@ -756,7 +756,7 @@ static int ldlm_resource_clean(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 	return 0;
 }
 
-static int ldlm_resource_complain(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+static int ldlm_resource_complain(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 				  struct hlist_node *hnode, void *arg)
 {
 	struct ldlm_resource  *res = cfs_hash_object(hs, hnode);
@@ -1352,7 +1352,7 @@ void ldlm_dump_all_namespaces(ldlm_side_t client, int level)
 }
 EXPORT_SYMBOL(ldlm_dump_all_namespaces);
 
-static int ldlm_res_hash_dump(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+static int ldlm_res_hash_dump(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 			      struct hlist_node *hnode, void *arg)
 {
 	struct ldlm_resource *res = cfs_hash_object(hs, hnode);
diff --git a/drivers/staging/lustre/lustre/libcfs/hash.c b/drivers/staging/lustre/lustre/libcfs/hash.c
index 46186e19ea6c..e3e0578b27f9 100644
--- a/drivers/staging/lustre/lustre/libcfs/hash.c
+++ b/drivers/staging/lustre/lustre/libcfs/hash.c
@@ -209,7 +209,7 @@ static cfs_hash_lock_ops_t cfs_hash_nr_bkt_rw_lops =
 };
 
 static void
-cfs_hash_lock_setup(cfs_hash_t *hs)
+cfs_hash_lock_setup(struct cfs_hash *hs)
 {
 	if (cfs_hash_with_no_lock(hs)) {
 		hs->hs_lops = &cfs_hash_nl_lops;
@@ -246,13 +246,13 @@ typedef struct {
 } cfs_hash_head_t;
 
 static int
-cfs_hash_hh_hhead_size(cfs_hash_t *hs)
+cfs_hash_hh_hhead_size(struct cfs_hash *hs)
 {
 	return sizeof(cfs_hash_head_t);
 }
 
 static struct hlist_head *
-cfs_hash_hh_hhead(cfs_hash_t *hs, struct cfs_hash_bd *bd)
+cfs_hash_hh_hhead(struct cfs_hash *hs, struct cfs_hash_bd *bd)
 {
 	cfs_hash_head_t *head = (cfs_hash_head_t *)&bd->bd_bucket->hsb_head[0];
 
@@ -260,7 +260,7 @@ cfs_hash_hh_hhead(cfs_hash_t *hs, struct cfs_hash_bd *bd)
 }
 
 static int
-cfs_hash_hh_hnode_add(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+cfs_hash_hh_hnode_add(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 		      struct hlist_node *hnode)
 {
 	hlist_add_head(hnode, cfs_hash_hh_hhead(hs, bd));
@@ -268,7 +268,7 @@ cfs_hash_hh_hnode_add(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 }
 
 static int
-cfs_hash_hh_hnode_del(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+cfs_hash_hh_hnode_del(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 		      struct hlist_node *hnode)
 {
 	hlist_del_init(hnode);
@@ -285,13 +285,13 @@ typedef struct {
 } cfs_hash_head_dep_t;
 
 static int
-cfs_hash_hd_hhead_size(cfs_hash_t *hs)
+cfs_hash_hd_hhead_size(struct cfs_hash *hs)
 {
 	return sizeof(cfs_hash_head_dep_t);
 }
 
 static struct hlist_head *
-cfs_hash_hd_hhead(cfs_hash_t *hs, struct cfs_hash_bd *bd)
+cfs_hash_hd_hhead(struct cfs_hash *hs, struct cfs_hash_bd *bd)
 {
 	cfs_hash_head_dep_t   *head;
 
@@ -300,7 +300,7 @@ cfs_hash_hd_hhead(cfs_hash_t *hs, struct cfs_hash_bd *bd)
 }
 
 static int
-cfs_hash_hd_hnode_add(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+cfs_hash_hd_hnode_add(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 		      struct hlist_node *hnode)
 {
 	cfs_hash_head_dep_t *hh = container_of(cfs_hash_hd_hhead(hs, bd),
@@ -310,7 +310,7 @@ cfs_hash_hd_hnode_add(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 }
 
 static int
-cfs_hash_hd_hnode_del(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+cfs_hash_hd_hnode_del(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 		      struct hlist_node *hnode)
 {
 	cfs_hash_head_dep_t *hh = container_of(cfs_hash_hd_hhead(hs, bd),
@@ -329,13 +329,13 @@ typedef struct {
 } cfs_hash_dhead_t;
 
 static int
-cfs_hash_dh_hhead_size(cfs_hash_t *hs)
+cfs_hash_dh_hhead_size(struct cfs_hash *hs)
 {
 	return sizeof(cfs_hash_dhead_t);
 }
 
 static struct hlist_head *
-cfs_hash_dh_hhead(cfs_hash_t *hs, struct cfs_hash_bd *bd)
+cfs_hash_dh_hhead(struct cfs_hash *hs, struct cfs_hash_bd *bd)
 {
 	cfs_hash_dhead_t *head;
 
@@ -344,7 +344,7 @@ cfs_hash_dh_hhead(cfs_hash_t *hs, struct cfs_hash_bd *bd)
 }
 
 static int
-cfs_hash_dh_hnode_add(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+cfs_hash_dh_hnode_add(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 		      struct hlist_node *hnode)
 {
 	cfs_hash_dhead_t *dh = container_of(cfs_hash_dh_hhead(hs, bd),
@@ -359,7 +359,7 @@ cfs_hash_dh_hnode_add(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 }
 
 static int
-cfs_hash_dh_hnode_del(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+cfs_hash_dh_hnode_del(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 		      struct hlist_node *hnd)
 {
 	cfs_hash_dhead_t *dh = container_of(cfs_hash_dh_hhead(hs, bd),
@@ -384,13 +384,13 @@ typedef struct {
 } cfs_hash_dhead_dep_t;
 
 static int
-cfs_hash_dd_hhead_size(cfs_hash_t *hs)
+cfs_hash_dd_hhead_size(struct cfs_hash *hs)
 {
 	return sizeof(cfs_hash_dhead_dep_t);
 }
 
 static struct hlist_head *
-cfs_hash_dd_hhead(cfs_hash_t *hs, struct cfs_hash_bd *bd)
+cfs_hash_dd_hhead(struct cfs_hash *hs, struct cfs_hash_bd *bd)
 {
 	cfs_hash_dhead_dep_t *head;
 
@@ -399,7 +399,7 @@ cfs_hash_dd_hhead(cfs_hash_t *hs, struct cfs_hash_bd *bd)
 }
 
 static int
-cfs_hash_dd_hnode_add(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+cfs_hash_dd_hnode_add(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 		      struct hlist_node *hnode)
 {
 	cfs_hash_dhead_dep_t *dh = container_of(cfs_hash_dd_hhead(hs, bd),
@@ -414,7 +414,7 @@ cfs_hash_dd_hnode_add(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 }
 
 static int
-cfs_hash_dd_hnode_del(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+cfs_hash_dd_hnode_del(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 		      struct hlist_node *hnd)
 {
 	cfs_hash_dhead_dep_t *dh = container_of(cfs_hash_dd_hhead(hs, bd),
@@ -457,7 +457,7 @@ static cfs_hash_hlist_ops_t cfs_hash_dd_hops = {
 };
 
 static void
-cfs_hash_hlist_setup(cfs_hash_t *hs)
+cfs_hash_hlist_setup(struct cfs_hash *hs)
 {
 	if (cfs_hash_with_add_tail(hs)) {
 		hs->hs_hops = cfs_hash_with_depth(hs) ?
@@ -469,7 +469,7 @@ cfs_hash_hlist_setup(cfs_hash_t *hs)
 }
 
 static void
-cfs_hash_bd_from_key(cfs_hash_t *hs, struct cfs_hash_bucket **bkts,
+cfs_hash_bd_from_key(struct cfs_hash *hs, struct cfs_hash_bucket **bkts,
 		     unsigned int bits, const void *key, struct cfs_hash_bd *bd)
 {
 	unsigned int index = cfs_hash_id(hs, key, (1U << bits) - 1);
@@ -481,7 +481,7 @@ cfs_hash_bd_from_key(cfs_hash_t *hs, struct cfs_hash_bucket **bkts,
 }
 
 void
-cfs_hash_bd_get(cfs_hash_t *hs, const void *key, struct cfs_hash_bd *bd)
+cfs_hash_bd_get(struct cfs_hash *hs, const void *key, struct cfs_hash_bd *bd)
 {
 	/* NB: caller should hold hs->hs_rwlock if REHASH is set */
 	if (likely(hs->hs_rehash_buckets == NULL)) {
@@ -496,7 +496,7 @@ cfs_hash_bd_get(cfs_hash_t *hs, const void *key, struct cfs_hash_bd *bd)
 EXPORT_SYMBOL(cfs_hash_bd_get);
 
 static inline void
-cfs_hash_bd_dep_record(cfs_hash_t *hs, struct cfs_hash_bd *bd, int dep_cur)
+cfs_hash_bd_dep_record(struct cfs_hash *hs, struct cfs_hash_bd *bd, int dep_cur)
 {
 	if (likely(dep_cur <= bd->bd_bucket->hsb_depmax))
 		return;
@@ -519,7 +519,7 @@ cfs_hash_bd_dep_record(cfs_hash_t *hs, struct cfs_hash_bd *bd, int dep_cur)
 }
 
 void
-cfs_hash_bd_add_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+cfs_hash_bd_add_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 		       struct hlist_node *hnode)
 {
 	int		rc;
@@ -539,7 +539,7 @@ cfs_hash_bd_add_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 EXPORT_SYMBOL(cfs_hash_bd_add_locked);
 
 void
-cfs_hash_bd_del_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+cfs_hash_bd_del_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 		       struct hlist_node *hnode)
 {
 	hs->hs_hops->hop_hnode_del(hs, bd, hnode);
@@ -560,7 +560,7 @@ cfs_hash_bd_del_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 EXPORT_SYMBOL(cfs_hash_bd_del_locked);
 
 void
-cfs_hash_bd_move_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd_old,
+cfs_hash_bd_move_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd_old,
 			struct cfs_hash_bd *bd_new, struct hlist_node *hnode)
 {
 	struct cfs_hash_bucket *obkt = bd_old->bd_bucket;
@@ -617,7 +617,7 @@ typedef enum cfs_hash_lookup_intent {
 } cfs_hash_lookup_intent_t;
 
 static struct hlist_node *
-cfs_hash_bd_lookup_intent(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+cfs_hash_bd_lookup_intent(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 			  const void *key, struct hlist_node *hnode,
 			  cfs_hash_lookup_intent_t intent)
 
@@ -658,7 +658,7 @@ cfs_hash_bd_lookup_intent(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 }
 
 struct hlist_node *
-cfs_hash_bd_lookup_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd, const void *key)
+cfs_hash_bd_lookup_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd, const void *key)
 {
 	return cfs_hash_bd_lookup_intent(hs, bd, key, NULL,
 					 CFS_HS_LOOKUP_IT_FIND);
@@ -666,7 +666,7 @@ cfs_hash_bd_lookup_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd, const void *ke
 EXPORT_SYMBOL(cfs_hash_bd_lookup_locked);
 
 struct hlist_node *
-cfs_hash_bd_peek_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd, const void *key)
+cfs_hash_bd_peek_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd, const void *key)
 {
 	return cfs_hash_bd_lookup_intent(hs, bd, key, NULL,
 					 CFS_HS_LOOKUP_IT_PEEK);
@@ -674,7 +674,7 @@ cfs_hash_bd_peek_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd, const void *key)
 EXPORT_SYMBOL(cfs_hash_bd_peek_locked);
 
 struct hlist_node *
-cfs_hash_bd_findadd_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+cfs_hash_bd_findadd_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 			   const void *key, struct hlist_node *hnode,
 			   int noref)
 {
@@ -685,7 +685,7 @@ cfs_hash_bd_findadd_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 EXPORT_SYMBOL(cfs_hash_bd_findadd_locked);
 
 struct hlist_node *
-cfs_hash_bd_finddel_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+cfs_hash_bd_finddel_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 			   const void *key, struct hlist_node *hnode)
 {
 	/* hnode can be NULL, we find the first item with @key */
@@ -695,7 +695,7 @@ cfs_hash_bd_finddel_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 EXPORT_SYMBOL(cfs_hash_bd_finddel_locked);
 
 static void
-cfs_hash_multi_bd_lock(cfs_hash_t *hs, struct cfs_hash_bd *bds,
+cfs_hash_multi_bd_lock(struct cfs_hash *hs, struct cfs_hash_bd *bds,
 		       unsigned n, int excl)
 {
 	struct cfs_hash_bucket *prev = NULL;
@@ -718,7 +718,7 @@ cfs_hash_multi_bd_lock(cfs_hash_t *hs, struct cfs_hash_bd *bds,
 }
 
 static void
-cfs_hash_multi_bd_unlock(cfs_hash_t *hs, struct cfs_hash_bd *bds,
+cfs_hash_multi_bd_unlock(struct cfs_hash *hs, struct cfs_hash_bd *bds,
 			 unsigned n, int excl)
 {
 	struct cfs_hash_bucket *prev = NULL;
@@ -733,7 +733,7 @@ cfs_hash_multi_bd_unlock(cfs_hash_t *hs, struct cfs_hash_bd *bds,
 }
 
 static struct hlist_node *
-cfs_hash_multi_bd_lookup_locked(cfs_hash_t *hs, struct cfs_hash_bd *bds,
+cfs_hash_multi_bd_lookup_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
 				unsigned n, const void *key)
 {
 	struct hlist_node  *ehnode;
@@ -749,7 +749,7 @@ cfs_hash_multi_bd_lookup_locked(cfs_hash_t *hs, struct cfs_hash_bd *bds,
 }
 
 static struct hlist_node *
-cfs_hash_multi_bd_findadd_locked(cfs_hash_t *hs,
+cfs_hash_multi_bd_findadd_locked(struct cfs_hash *hs,
 				 struct cfs_hash_bd *bds, unsigned n, const void *key,
 				 struct hlist_node *hnode, int noref)
 {
@@ -780,7 +780,7 @@ cfs_hash_multi_bd_findadd_locked(cfs_hash_t *hs,
 }
 
 static struct hlist_node *
-cfs_hash_multi_bd_finddel_locked(cfs_hash_t *hs, struct cfs_hash_bd *bds,
+cfs_hash_multi_bd_finddel_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
 				 unsigned n, const void *key,
 				 struct hlist_node *hnode)
 {
@@ -824,7 +824,7 @@ cfs_hash_bd_order(struct cfs_hash_bd *bd1, struct cfs_hash_bd *bd2)
 }
 
 void
-cfs_hash_dual_bd_get(cfs_hash_t *hs, const void *key, struct cfs_hash_bd *bds)
+cfs_hash_dual_bd_get(struct cfs_hash *hs, const void *key, struct cfs_hash_bd *bds)
 {
 	/* NB: caller should hold hs_lock.rw if REHASH is set */
 	cfs_hash_bd_from_key(hs, hs->hs_buckets,
@@ -844,21 +844,21 @@ cfs_hash_dual_bd_get(cfs_hash_t *hs, const void *key, struct cfs_hash_bd *bds)
 EXPORT_SYMBOL(cfs_hash_dual_bd_get);
 
 void
-cfs_hash_dual_bd_lock(cfs_hash_t *hs, struct cfs_hash_bd *bds, int excl)
+cfs_hash_dual_bd_lock(struct cfs_hash *hs, struct cfs_hash_bd *bds, int excl)
 {
 	cfs_hash_multi_bd_lock(hs, bds, 2, excl);
 }
 EXPORT_SYMBOL(cfs_hash_dual_bd_lock);
 
 void
-cfs_hash_dual_bd_unlock(cfs_hash_t *hs, struct cfs_hash_bd *bds, int excl)
+cfs_hash_dual_bd_unlock(struct cfs_hash *hs, struct cfs_hash_bd *bds, int excl)
 {
 	cfs_hash_multi_bd_unlock(hs, bds, 2, excl);
 }
 EXPORT_SYMBOL(cfs_hash_dual_bd_unlock);
 
 struct hlist_node *
-cfs_hash_dual_bd_lookup_locked(cfs_hash_t *hs, struct cfs_hash_bd *bds,
+cfs_hash_dual_bd_lookup_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
 			       const void *key)
 {
 	return cfs_hash_multi_bd_lookup_locked(hs, bds, 2, key);
@@ -866,7 +866,7 @@ cfs_hash_dual_bd_lookup_locked(cfs_hash_t *hs, struct cfs_hash_bd *bds,
 EXPORT_SYMBOL(cfs_hash_dual_bd_lookup_locked);
 
 struct hlist_node *
-cfs_hash_dual_bd_findadd_locked(cfs_hash_t *hs, struct cfs_hash_bd *bds,
+cfs_hash_dual_bd_findadd_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
 				const void *key, struct hlist_node *hnode,
 				int noref)
 {
@@ -876,7 +876,7 @@ cfs_hash_dual_bd_findadd_locked(cfs_hash_t *hs, struct cfs_hash_bd *bds,
 EXPORT_SYMBOL(cfs_hash_dual_bd_findadd_locked);
 
 struct hlist_node *
-cfs_hash_dual_bd_finddel_locked(cfs_hash_t *hs, struct cfs_hash_bd *bds,
+cfs_hash_dual_bd_finddel_locked(struct cfs_hash *hs, struct cfs_hash_bd *bds,
 				const void *key, struct hlist_node *hnode)
 {
 	return cfs_hash_multi_bd_finddel_locked(hs, bds, 2, key, hnode);
@@ -903,7 +903,7 @@ cfs_hash_buckets_free(struct cfs_hash_bucket **buckets,
  * successful, and NULL on error.
  */
 static struct cfs_hash_bucket **
-cfs_hash_buckets_realloc(cfs_hash_t *hs, struct cfs_hash_bucket **old_bkts,
+cfs_hash_buckets_realloc(struct cfs_hash *hs, struct cfs_hash_bucket **old_bkts,
 			 unsigned int old_size, unsigned int new_size)
 {
 	struct cfs_hash_bucket **new_bkts;
@@ -969,7 +969,7 @@ static int cfs_hash_rehash_worker(cfs_workitem_t *wi);
 #if CFS_HASH_DEBUG_LEVEL >= CFS_HASH_DEBUG_1
 static int cfs_hash_dep_print(cfs_workitem_t *wi)
 {
-	cfs_hash_t *hs = container_of(wi, cfs_hash_t, hs_dep_wi);
+	struct cfs_hash *hs = container_of(wi, struct cfs_hash, hs_dep_wi);
 	int	 dep;
 	int	 bkt;
 	int	 off;
@@ -990,13 +990,13 @@ static int cfs_hash_dep_print(cfs_workitem_t *wi)
 	return 0;
 }
 
-static void cfs_hash_depth_wi_init(cfs_hash_t *hs)
+static void cfs_hash_depth_wi_init(struct cfs_hash *hs)
 {
 	spin_lock_init(&hs->hs_dep_lock);
 	cfs_wi_init(&hs->hs_dep_wi, hs, cfs_hash_dep_print);
 }
 
-static void cfs_hash_depth_wi_cancel(cfs_hash_t *hs)
+static void cfs_hash_depth_wi_cancel(struct cfs_hash *hs)
 {
 	if (cfs_wi_deschedule(cfs_sched_rehash, &hs->hs_dep_wi))
 		return;
@@ -1012,18 +1012,18 @@ static void cfs_hash_depth_wi_cancel(cfs_hash_t *hs)
 
 #else /* CFS_HASH_DEBUG_LEVEL < CFS_HASH_DEBUG_1 */
 
-static inline void cfs_hash_depth_wi_init(cfs_hash_t *hs) {}
-static inline void cfs_hash_depth_wi_cancel(cfs_hash_t *hs) {}
+static inline void cfs_hash_depth_wi_init(struct cfs_hash *hs) {}
+static inline void cfs_hash_depth_wi_cancel(struct cfs_hash *hs) {}
 
 #endif /* CFS_HASH_DEBUG_LEVEL >= CFS_HASH_DEBUG_1 */
 
-cfs_hash_t *
+struct cfs_hash *
 cfs_hash_create(char *name, unsigned cur_bits, unsigned max_bits,
 		unsigned bkt_bits, unsigned extra_bytes,
 		unsigned min_theta, unsigned max_theta,
 		cfs_hash_ops_t *ops, unsigned flags)
 {
-	cfs_hash_t *hs;
+	struct cfs_hash *hs;
 	int	 len;
 
 	CLASSERT(CFS_HASH_THETA_BITS < 15);
@@ -1051,7 +1051,7 @@ cfs_hash_create(char *name, unsigned cur_bits, unsigned max_bits,
 
 	len = (flags & CFS_HASH_BIGNAME) == 0 ?
 	      CFS_HASH_NAME_LEN : CFS_HASH_BIGNAME_LEN;
-	LIBCFS_ALLOC(hs, offsetof(cfs_hash_t, hs_name[len]));
+	LIBCFS_ALLOC(hs, offsetof(struct cfs_hash, hs_name[len]));
 	if (hs == NULL)
 		return NULL;
 
@@ -1084,7 +1084,7 @@ cfs_hash_create(char *name, unsigned cur_bits, unsigned max_bits,
 	if (hs->hs_buckets != NULL)
 		return hs;
 
-	LIBCFS_FREE(hs, offsetof(cfs_hash_t, hs_name[len]));
+	LIBCFS_FREE(hs, offsetof(struct cfs_hash, hs_name[len]));
 	return NULL;
 }
 EXPORT_SYMBOL(cfs_hash_create);
@@ -1093,7 +1093,7 @@ EXPORT_SYMBOL(cfs_hash_create);
  * Cleanup libcfs hash @hs.
  */
 static void
-cfs_hash_destroy(cfs_hash_t *hs)
+cfs_hash_destroy(struct cfs_hash *hs)
 {
 	struct hlist_node     *hnode;
 	struct hlist_node     *pos;
@@ -1148,10 +1148,10 @@ cfs_hash_destroy(cfs_hash_t *hs)
 			      0, CFS_HASH_NBKT(hs));
 	i = cfs_hash_with_bigname(hs) ?
 	    CFS_HASH_BIGNAME_LEN : CFS_HASH_NAME_LEN;
-	LIBCFS_FREE(hs, offsetof(cfs_hash_t, hs_name[i]));
+	LIBCFS_FREE(hs, offsetof(struct cfs_hash, hs_name[i]));
 }
 
-cfs_hash_t *cfs_hash_getref(cfs_hash_t *hs)
+struct cfs_hash *cfs_hash_getref(struct cfs_hash *hs)
 {
 	if (atomic_inc_not_zero(&hs->hs_refcount))
 		return hs;
@@ -1159,7 +1159,7 @@ cfs_hash_t *cfs_hash_getref(cfs_hash_t *hs)
 }
 EXPORT_SYMBOL(cfs_hash_getref);
 
-void cfs_hash_putref(cfs_hash_t *hs)
+void cfs_hash_putref(struct cfs_hash *hs)
 {
 	if (atomic_dec_and_test(&hs->hs_refcount))
 		cfs_hash_destroy(hs);
@@ -1167,7 +1167,7 @@ void cfs_hash_putref(cfs_hash_t *hs)
 EXPORT_SYMBOL(cfs_hash_putref);
 
 static inline int
-cfs_hash_rehash_bits(cfs_hash_t *hs)
+cfs_hash_rehash_bits(struct cfs_hash *hs)
 {
 	if (cfs_hash_with_no_lock(hs) ||
 	    !cfs_hash_with_rehash(hs))
@@ -1204,7 +1204,7 @@ cfs_hash_rehash_bits(cfs_hash_t *hs)
  * - too many elements
  */
 static inline int
-cfs_hash_rehash_inline(cfs_hash_t *hs)
+cfs_hash_rehash_inline(struct cfs_hash *hs)
 {
 	return !cfs_hash_with_nblk_change(hs) &&
 	       atomic_read(&hs->hs_count) < CFS_HASH_LOOP_HOG;
@@ -1215,7 +1215,7 @@ cfs_hash_rehash_inline(cfs_hash_t *hs)
  * ops->hs_get function will be called when the item is added.
  */
 void
-cfs_hash_add(cfs_hash_t *hs, const void *key, struct hlist_node *hnode)
+cfs_hash_add(struct cfs_hash *hs, const void *key, struct hlist_node *hnode)
 {
 	struct cfs_hash_bd   bd;
 	int	     bits;
@@ -1238,7 +1238,7 @@ cfs_hash_add(cfs_hash_t *hs, const void *key, struct hlist_node *hnode)
 EXPORT_SYMBOL(cfs_hash_add);
 
 static struct hlist_node *
-cfs_hash_find_or_add(cfs_hash_t *hs, const void *key,
+cfs_hash_find_or_add(struct cfs_hash *hs, const void *key,
 		     struct hlist_node *hnode, int noref)
 {
 	struct hlist_node *ehnode;
@@ -1270,7 +1270,7 @@ cfs_hash_find_or_add(cfs_hash_t *hs, const void *key,
  * Returns 0 on success or -EALREADY on key collisions.
  */
 int
-cfs_hash_add_unique(cfs_hash_t *hs, const void *key, struct hlist_node *hnode)
+cfs_hash_add_unique(struct cfs_hash *hs, const void *key, struct hlist_node *hnode)
 {
 	return cfs_hash_find_or_add(hs, key, hnode, 1) != hnode ?
 	       -EALREADY : 0;
@@ -1284,7 +1284,7 @@ EXPORT_SYMBOL(cfs_hash_add_unique);
  * Otherwise ops->hs_get is called on the item which was added.
  */
 void *
-cfs_hash_findadd_unique(cfs_hash_t *hs, const void *key,
+cfs_hash_findadd_unique(struct cfs_hash *hs, const void *key,
 			struct hlist_node *hnode)
 {
 	hnode = cfs_hash_find_or_add(hs, key, hnode, 0);
@@ -1301,7 +1301,7 @@ EXPORT_SYMBOL(cfs_hash_findadd_unique);
  * on the removed object.
  */
 void *
-cfs_hash_del(cfs_hash_t *hs, const void *key, struct hlist_node *hnode)
+cfs_hash_del(struct cfs_hash *hs, const void *key, struct hlist_node *hnode)
 {
 	void	   *obj  = NULL;
 	int	     bits = 0;
@@ -1341,7 +1341,7 @@ EXPORT_SYMBOL(cfs_hash_del);
  * will be returned and ops->hs_put is called on the removed object.
  */
 void *
-cfs_hash_del_key(cfs_hash_t *hs, const void *key)
+cfs_hash_del_key(struct cfs_hash *hs, const void *key)
 {
 	return cfs_hash_del(hs, key, NULL);
 }
@@ -1356,7 +1356,7 @@ EXPORT_SYMBOL(cfs_hash_del_key);
  * in the hash @hs NULL is returned.
  */
 void *
-cfs_hash_lookup(cfs_hash_t *hs, const void *key)
+cfs_hash_lookup(struct cfs_hash *hs, const void *key)
 {
 	void		 *obj = NULL;
 	struct hlist_node     *hnode;
@@ -1377,7 +1377,7 @@ cfs_hash_lookup(cfs_hash_t *hs, const void *key)
 EXPORT_SYMBOL(cfs_hash_lookup);
 
 static void
-cfs_hash_for_each_enter(cfs_hash_t *hs)
+cfs_hash_for_each_enter(struct cfs_hash *hs)
 {
 	LASSERT(!cfs_hash_is_exiting(hs));
 
@@ -1403,7 +1403,7 @@ cfs_hash_for_each_enter(cfs_hash_t *hs)
 }
 
 static void
-cfs_hash_for_each_exit(cfs_hash_t *hs)
+cfs_hash_for_each_exit(struct cfs_hash *hs)
 {
 	int remained;
 	int bits;
@@ -1434,7 +1434,7 @@ cfs_hash_for_each_exit(cfs_hash_t *hs)
  *      cfs_hash_bd_del_locked
  */
 static __u64
-cfs_hash_for_each_tight(cfs_hash_t *hs, cfs_hash_for_each_cb_t func,
+cfs_hash_for_each_tight(struct cfs_hash *hs, cfs_hash_for_each_cb_t func,
 			void *data, int remove_safe)
 {
 	struct hlist_node     *hnode;
@@ -1492,7 +1492,7 @@ typedef struct {
 } cfs_hash_cond_arg_t;
 
 static int
-cfs_hash_cond_del_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+cfs_hash_cond_del_locked(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 			 struct hlist_node *hnode, void *data)
 {
 	cfs_hash_cond_arg_t *cond = data;
@@ -1508,7 +1508,7 @@ cfs_hash_cond_del_locked(cfs_hash_t *hs, struct cfs_hash_bd *bd,
  * any object be reference.
  */
 void
-cfs_hash_cond_del(cfs_hash_t *hs, cfs_hash_cond_opt_cb_t func, void *data)
+cfs_hash_cond_del(struct cfs_hash *hs, cfs_hash_cond_opt_cb_t func, void *data)
 {
 	cfs_hash_cond_arg_t arg = {
 		.func   = func,
@@ -1520,7 +1520,7 @@ cfs_hash_cond_del(cfs_hash_t *hs, cfs_hash_cond_opt_cb_t func, void *data)
 EXPORT_SYMBOL(cfs_hash_cond_del);
 
 void
-cfs_hash_for_each(cfs_hash_t *hs,
+cfs_hash_for_each(struct cfs_hash *hs,
 		  cfs_hash_for_each_cb_t func, void *data)
 {
 	cfs_hash_for_each_tight(hs, func, data, 0);
@@ -1528,7 +1528,7 @@ cfs_hash_for_each(cfs_hash_t *hs,
 EXPORT_SYMBOL(cfs_hash_for_each);
 
 void
-cfs_hash_for_each_safe(cfs_hash_t *hs,
+cfs_hash_for_each_safe(struct cfs_hash *hs,
 		       cfs_hash_for_each_cb_t func, void *data)
 {
 	cfs_hash_for_each_tight(hs, func, data, 1);
@@ -1536,7 +1536,7 @@ cfs_hash_for_each_safe(cfs_hash_t *hs,
 EXPORT_SYMBOL(cfs_hash_for_each_safe);
 
 static int
-cfs_hash_peek(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+cfs_hash_peek(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 	      struct hlist_node *hnode, void *data)
 {
 	*(int *)data = 0;
@@ -1544,7 +1544,7 @@ cfs_hash_peek(cfs_hash_t *hs, struct cfs_hash_bd *bd,
 }
 
 int
-cfs_hash_is_empty(cfs_hash_t *hs)
+cfs_hash_is_empty(struct cfs_hash *hs)
 {
 	int empty = 1;
 
@@ -1554,7 +1554,7 @@ cfs_hash_is_empty(cfs_hash_t *hs)
 EXPORT_SYMBOL(cfs_hash_is_empty);
 
 __u64
-cfs_hash_size_get(cfs_hash_t *hs)
+cfs_hash_size_get(struct cfs_hash *hs)
 {
 	return cfs_hash_with_counter(hs) ?
 	       atomic_read(&hs->hs_count) :
@@ -1578,7 +1578,7 @@ EXPORT_SYMBOL(cfs_hash_size_get);
  * two cases, so iteration has to be stopped on change.
  */
 static int
-cfs_hash_for_each_relax(cfs_hash_t *hs, cfs_hash_for_each_cb_t func, void *data)
+cfs_hash_for_each_relax(struct cfs_hash *hs, cfs_hash_for_each_cb_t func, void *data)
 {
 	struct hlist_node *hnode;
 	struct hlist_node *tmp;
@@ -1639,7 +1639,7 @@ cfs_hash_for_each_relax(cfs_hash_t *hs, cfs_hash_for_each_cb_t func, void *data)
 }
 
 int
-cfs_hash_for_each_nolock(cfs_hash_t *hs,
+cfs_hash_for_each_nolock(struct cfs_hash *hs,
 			 cfs_hash_for_each_cb_t func, void *data)
 {
 	if (cfs_hash_with_no_lock(hs) ||
@@ -1672,7 +1672,7 @@ EXPORT_SYMBOL(cfs_hash_for_each_nolock);
  * the required locking is in place to prevent concurrent insertions.
  */
 int
-cfs_hash_for_each_empty(cfs_hash_t *hs,
+cfs_hash_for_each_empty(struct cfs_hash *hs,
 			cfs_hash_for_each_cb_t func, void *data)
 {
 	unsigned  i = 0;
@@ -1696,7 +1696,7 @@ cfs_hash_for_each_empty(cfs_hash_t *hs,
 EXPORT_SYMBOL(cfs_hash_for_each_empty);
 
 void
-cfs_hash_hlist_for_each(cfs_hash_t *hs, unsigned hindex,
+cfs_hash_hlist_for_each(struct cfs_hash *hs, unsigned hindex,
 			cfs_hash_for_each_cb_t func, void *data)
 {
 	struct hlist_head   *hhead;
@@ -1731,7 +1731,7 @@ EXPORT_SYMBOL(cfs_hash_hlist_for_each);
  * is held so the callback must never sleep.
    */
 void
-cfs_hash_for_each_key(cfs_hash_t *hs, const void *key,
+cfs_hash_for_each_key(struct cfs_hash *hs, const void *key,
 		      cfs_hash_for_each_cb_t func, void *data)
 {
 	struct hlist_node   *hnode;
@@ -1772,7 +1772,7 @@ EXPORT_SYMBOL(cfs_hash_for_each_key);
  * theta thresholds for @hs are tunable via cfs_hash_set_theta().
  */
 void
-cfs_hash_rehash_cancel_locked(cfs_hash_t *hs)
+cfs_hash_rehash_cancel_locked(struct cfs_hash *hs)
 {
 	int     i;
 
@@ -1801,7 +1801,7 @@ cfs_hash_rehash_cancel_locked(cfs_hash_t *hs)
 EXPORT_SYMBOL(cfs_hash_rehash_cancel_locked);
 
 void
-cfs_hash_rehash_cancel(cfs_hash_t *hs)
+cfs_hash_rehash_cancel(struct cfs_hash *hs)
 {
 	cfs_hash_lock(hs, 1);
 	cfs_hash_rehash_cancel_locked(hs);
@@ -1810,7 +1810,7 @@ cfs_hash_rehash_cancel(cfs_hash_t *hs)
 EXPORT_SYMBOL(cfs_hash_rehash_cancel);
 
 int
-cfs_hash_rehash(cfs_hash_t *hs, int do_rehash)
+cfs_hash_rehash(struct cfs_hash *hs, int do_rehash)
 {
 	int     rc;
 
@@ -1840,7 +1840,7 @@ cfs_hash_rehash(cfs_hash_t *hs, int do_rehash)
 EXPORT_SYMBOL(cfs_hash_rehash);
 
 static int
-cfs_hash_rehash_bd(cfs_hash_t *hs, struct cfs_hash_bd *old)
+cfs_hash_rehash_bd(struct cfs_hash *hs, struct cfs_hash_bd *old)
 {
 	struct cfs_hash_bd      new;
 	struct hlist_head  *hhead;
@@ -1873,7 +1873,7 @@ cfs_hash_rehash_bd(cfs_hash_t *hs, struct cfs_hash_bd *old)
 static int
 cfs_hash_rehash_worker(cfs_workitem_t *wi)
 {
-	cfs_hash_t	 *hs = container_of(wi, cfs_hash_t, hs_rehash_wi);
+	struct cfs_hash	 *hs = container_of(wi, struct cfs_hash, hs_rehash_wi);
 	struct cfs_hash_bucket **bkts;
 	struct cfs_hash_bd       bd;
 	unsigned int	old_size;
@@ -1980,7 +1980,7 @@ cfs_hash_rehash_worker(cfs_workitem_t *wi)
  * the registered cfs_hash_get() and cfs_hash_put() functions will
  * not be called.
  */
-void cfs_hash_rehash_key(cfs_hash_t *hs, const void *old_key,
+void cfs_hash_rehash_key(struct cfs_hash *hs, const void *old_key,
 			 void *new_key, struct hlist_node *hnode)
 {
 	struct cfs_hash_bd	bds[3];
@@ -2029,7 +2029,7 @@ int cfs_hash_debug_header(struct seq_file *m)
 EXPORT_SYMBOL(cfs_hash_debug_header);
 
 static struct cfs_hash_bucket **
-cfs_hash_full_bkts(cfs_hash_t *hs)
+cfs_hash_full_bkts(struct cfs_hash *hs)
 {
 	/* NB: caller should hold hs->hs_rwlock if REHASH is set */
 	if (hs->hs_rehash_buckets == NULL)
@@ -2041,7 +2041,7 @@ cfs_hash_full_bkts(cfs_hash_t *hs)
 }
 
 static unsigned int
-cfs_hash_full_nbkt(cfs_hash_t *hs)
+cfs_hash_full_nbkt(struct cfs_hash *hs)
 {
 	/* NB: caller should hold hs->hs_rwlock if REHASH is set */
 	if (hs->hs_rehash_buckets == NULL)
@@ -2052,7 +2052,7 @@ cfs_hash_full_nbkt(cfs_hash_t *hs)
 	       CFS_HASH_RH_NBKT(hs) : CFS_HASH_NBKT(hs);
 }
 
-int cfs_hash_debug_str(cfs_hash_t *hs, struct seq_file *m)
+int cfs_hash_debug_str(struct cfs_hash *hs, struct seq_file *m)
 {
 	int		    dist[8] = { 0, };
 	int		    maxdep  = -1;
diff --git a/drivers/staging/lustre/lustre/llite/vvp_dev.c b/drivers/staging/lustre/lustre/llite/vvp_dev.c
index b4d03d7e134b..c4d1580b7be5 100644
--- a/drivers/staging/lustre/lustre/llite/vvp_dev.c
+++ b/drivers/staging/lustre/lustre/llite/vvp_dev.c
@@ -297,7 +297,7 @@ static loff_t vvp_pgcache_id_pack(struct vvp_pgcache_id *id)
 		((__u64)id->vpi_bucket << PGC_OBJ_SHIFT);
 }
 
-static int vvp_pgcache_obj_get(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+static int vvp_pgcache_obj_get(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 			       struct hlist_node *hnode, void *data)
 {
 	struct vvp_pgcache_id   *id  = data;
diff --git a/drivers/staging/lustre/lustre/lov/lov_pool.c b/drivers/staging/lustre/lustre/lov/lov_pool.c
index dd3c07d5c4de..a1701dfe4083 100644
--- a/drivers/staging/lustre/lustre/lov/lov_pool.c
+++ b/drivers/staging/lustre/lustre/lov/lov_pool.c
@@ -86,7 +86,7 @@ void lov_pool_putref_locked(struct pool_desc *pool)
  * Chapter 6.4.
  * Addison Wesley, 1973
  */
-static __u32 pool_hashfn(cfs_hash_t *hash_body, const void *key, unsigned mask)
+static __u32 pool_hashfn(struct cfs_hash *hash_body, const void *key, unsigned mask)
 {
 	int i;
 	__u32 result;
@@ -125,7 +125,7 @@ static void *pool_hashobject(struct hlist_node *hnode)
 	return hlist_entry(hnode, struct pool_desc, pool_hash);
 }
 
-static void pool_hashrefcount_get(cfs_hash_t *hs, struct hlist_node *hnode)
+static void pool_hashrefcount_get(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	struct pool_desc *pool;
 
@@ -133,7 +133,7 @@ static void pool_hashrefcount_get(cfs_hash_t *hs, struct hlist_node *hnode)
 	lov_pool_getref(pool);
 }
 
-static void pool_hashrefcount_put_locked(cfs_hash_t *hs,
+static void pool_hashrefcount_put_locked(struct cfs_hash *hs,
 					 struct hlist_node *hnode)
 {
 	struct pool_desc *pool;
diff --git a/drivers/staging/lustre/lustre/obdclass/cl_object.c b/drivers/staging/lustre/lustre/obdclass/cl_object.c
index 7b0e9d26b6c1..1a926036724b 100644
--- a/drivers/staging/lustre/lustre/obdclass/cl_object.c
+++ b/drivers/staging/lustre/lustre/obdclass/cl_object.c
@@ -577,9 +577,9 @@ static void cl_env_init0(struct cl_env *cle, void *debug)
  * The implementation of using hash table to connect cl_env and thread
  */
 
-static cfs_hash_t *cl_env_hash;
+static struct cfs_hash *cl_env_hash;
 
-static unsigned cl_env_hops_hash(cfs_hash_t *lh,
+static unsigned cl_env_hops_hash(struct cfs_hash *lh,
 				 const void *key, unsigned mask)
 {
 #if BITS_PER_LONG == 64
@@ -604,7 +604,7 @@ static int cl_env_hops_keycmp(const void *key, struct hlist_node *hn)
 	return (key == cle->ce_owner);
 }
 
-static void cl_env_hops_noop(cfs_hash_t *hs, struct hlist_node *hn)
+static void cl_env_hops_noop(struct cfs_hash *hs, struct hlist_node *hn)
 {
 	struct cl_env *cle = hlist_entry(hn, struct cl_env, ce_node);
 	LASSERT(cle->ce_magic == &cl_env_init0);
diff --git a/drivers/staging/lustre/lustre/obdclass/genops.c b/drivers/staging/lustre/lustre/obdclass/genops.c
index 68fe71c8a2a9..f6fae16fc7f7 100644
--- a/drivers/staging/lustre/lustre/obdclass/genops.c
+++ b/drivers/staging/lustre/lustre/obdclass/genops.c
@@ -816,7 +816,7 @@ struct obd_export *class_new_export(struct obd_device *obd,
 				    struct obd_uuid *cluuid)
 {
 	struct obd_export *export;
-	cfs_hash_t *hash = NULL;
+	struct cfs_hash *hash = NULL;
 	int rc = 0;
 
 	OBD_ALLOC_PTR(export);
@@ -1384,7 +1384,7 @@ EXPORT_SYMBOL(obd_export_nid2str);
 
 int obd_export_evict_by_nid(struct obd_device *obd, const char *nid)
 {
-	cfs_hash_t *nid_hash;
+	struct cfs_hash *nid_hash;
 	struct obd_export *doomed_exp = NULL;
 	int exports_evicted = 0;
 
@@ -1432,7 +1432,7 @@ EXPORT_SYMBOL(obd_export_evict_by_nid);
 
 int obd_export_evict_by_uuid(struct obd_device *obd, const char *uuid)
 {
-	cfs_hash_t *uuid_hash;
+	struct cfs_hash *uuid_hash;
 	struct obd_export *doomed_exp = NULL;
 	struct obd_uuid doomed_uuid;
 	int exports_evicted = 0;
diff --git a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
index c312b9e763a7..02d76f8dbcb9 100644
--- a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
+++ b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
@@ -898,7 +898,7 @@ static void lprocfs_free_client_stats(struct nid_stat *client_stat)
 
 void lprocfs_free_per_client_stats(struct obd_device *obd)
 {
-	cfs_hash_t *hash = obd->obd_nid_stats_hash;
+	struct cfs_hash *hash = obd->obd_nid_stats_hash;
 	struct nid_stat *stat;
 
 	/* we need extra list - because hash_exit called to early */
@@ -1422,7 +1422,7 @@ void lprocfs_init_ldlm_stats(struct lprocfs_stats *ldlm_stats)
 }
 EXPORT_SYMBOL(lprocfs_init_ldlm_stats);
 
-int lprocfs_exp_print_uuid(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+int lprocfs_exp_print_uuid(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 			   struct hlist_node *hnode, void *data)
 
 {
@@ -1453,7 +1453,7 @@ struct exp_hash_cb_data {
 	bool		first;
 };
 
-int lprocfs_exp_print_hash(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+int lprocfs_exp_print_hash(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 			   struct hlist_node *hnode, void *cb_data)
 
 {
diff --git a/drivers/staging/lustre/lustre/obdclass/lu_object.c b/drivers/staging/lustre/lustre/obdclass/lu_object.c
index 468498c6ad5c..212823ab937b 100644
--- a/drivers/staging/lustre/lustre/obdclass/lu_object.c
+++ b/drivers/staging/lustre/lustre/obdclass/lu_object.c
@@ -175,7 +175,7 @@ void lu_object_unhash(const struct lu_env *env, struct lu_object *o)
 	top = o->lo_header;
 	set_bit(LU_OBJECT_HEARD_BANSHEE, &top->loh_flags);
 	if (!test_and_set_bit(LU_OBJECT_UNHASHED, &top->loh_flags)) {
-		cfs_hash_t *obj_hash = o->lo_dev->ld_site->ls_obj_hash;
+		struct cfs_hash *obj_hash = o->lo_dev->ld_site->ls_obj_hash;
 		struct cfs_hash_bd bd;
 
 		cfs_hash_bd_get_and_lock(obj_hash, &top->loh_fid, &bd, 1);
@@ -589,7 +589,7 @@ static struct lu_object *lu_object_new(const struct lu_env *env,
 				       const struct lu_object_conf *conf)
 {
 	struct lu_object	*o;
-	cfs_hash_t	      *hs;
+	struct cfs_hash	      *hs;
 	struct cfs_hash_bd	    bd;
 	struct lu_site_bkt_data *bkt;
 
@@ -618,7 +618,7 @@ static struct lu_object *lu_object_find_try(const struct lu_env *env,
 	struct lu_object      *o;
 	struct lu_object      *shadow;
 	struct lu_site	*s;
-	cfs_hash_t	    *hs;
+	struct cfs_hash	    *hs;
 	struct cfs_hash_bd	  bd;
 	__u64		  version = 0;
 
@@ -788,7 +788,7 @@ struct lu_site_print_arg {
 };
 
 static int
-lu_site_obj_print(cfs_hash_t *hs, struct cfs_hash_bd *bd,
+lu_site_obj_print(struct cfs_hash *hs, struct cfs_hash_bd *bd,
 		  struct hlist_node *hnode, void *data)
 {
 	struct lu_site_print_arg *arg = (struct lu_site_print_arg *)data;
@@ -874,7 +874,7 @@ static int lu_htable_order(void)
 	return bits;
 }
 
-static unsigned lu_obj_hop_hash(cfs_hash_t *hs,
+static unsigned lu_obj_hop_hash(struct cfs_hash *hs,
 				const void *key, unsigned mask)
 {
 	struct lu_fid  *fid = (struct lu_fid *)key;
@@ -914,7 +914,7 @@ static int lu_obj_hop_keycmp(const void *key, struct hlist_node *hnode)
 	return lu_fid_eq(&h->loh_fid, (struct lu_fid *)key);
 }
 
-static void lu_obj_hop_get(cfs_hash_t *hs, struct hlist_node *hnode)
+static void lu_obj_hop_get(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	struct lu_object_header *h;
 
@@ -929,7 +929,7 @@ static void lu_obj_hop_get(cfs_hash_t *hs, struct hlist_node *hnode)
 	}
 }
 
-static void lu_obj_hop_put_locked(cfs_hash_t *hs, struct hlist_node *hnode)
+static void lu_obj_hop_put_locked(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	LBUG(); /* we should never called it */
 }
@@ -1788,7 +1788,7 @@ typedef struct lu_site_stats{
 	unsigned	lss_busy;
 } lu_site_stats_t;
 
-static void lu_site_stats_get(cfs_hash_t *hs,
+static void lu_site_stats_get(struct cfs_hash *hs,
 			      lu_site_stats_t *stats, int populated)
 {
 	struct cfs_hash_bd bd;
@@ -2072,7 +2072,7 @@ void lu_object_assign_fid(const struct lu_env *env, struct lu_object *o,
 	struct lu_site_bkt_data	*bkt;
 	struct lu_object	*shadow;
 	wait_queue_t		 waiter;
-	cfs_hash_t		*hs;
+	struct cfs_hash		*hs;
 	struct cfs_hash_bd	 bd;
 	__u64			 version = 0;
 
diff --git a/drivers/staging/lustre/lustre/obdclass/obd_config.c b/drivers/staging/lustre/lustre/obdclass/obd_config.c
index 73e2571f463f..362ae541b209 100644
--- a/drivers/staging/lustre/lustre/obdclass/obd_config.c
+++ b/drivers/staging/lustre/lustre/obdclass/obd_config.c
@@ -1692,7 +1692,7 @@ EXPORT_SYMBOL(class_manual_cleanup);
  */
 
 static unsigned
-uuid_hash(cfs_hash_t *hs, const void *key, unsigned mask)
+uuid_hash(struct cfs_hash *hs, const void *key, unsigned mask)
 {
 	return cfs_hash_djb2_hash(((struct obd_uuid *)key)->uuid,
 				  sizeof(((struct obd_uuid *)key)->uuid), mask);
@@ -1731,7 +1731,7 @@ uuid_export_object(struct hlist_node *hnode)
 }
 
 static void
-uuid_export_get(cfs_hash_t *hs, struct hlist_node *hnode)
+uuid_export_get(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	struct obd_export *exp;
 
@@ -1740,7 +1740,7 @@ uuid_export_get(cfs_hash_t *hs, struct hlist_node *hnode)
 }
 
 static void
-uuid_export_put_locked(cfs_hash_t *hs, struct hlist_node *hnode)
+uuid_export_put_locked(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	struct obd_export *exp;
 
@@ -1763,7 +1763,7 @@ static cfs_hash_ops_t uuid_hash_ops = {
  */
 
 static unsigned
-nid_hash(cfs_hash_t *hs, const void *key, unsigned mask)
+nid_hash(struct cfs_hash *hs, const void *key, unsigned mask)
 {
 	return cfs_hash_djb2_hash(key, sizeof(lnet_nid_t), mask);
 }
@@ -1801,7 +1801,7 @@ nid_export_object(struct hlist_node *hnode)
 }
 
 static void
-nid_export_get(cfs_hash_t *hs, struct hlist_node *hnode)
+nid_export_get(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	struct obd_export *exp;
 
@@ -1810,7 +1810,7 @@ nid_export_get(cfs_hash_t *hs, struct hlist_node *hnode)
 }
 
 static void
-nid_export_put_locked(cfs_hash_t *hs, struct hlist_node *hnode)
+nid_export_put_locked(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	struct obd_export *exp;
 
@@ -1855,7 +1855,7 @@ nidstats_object(struct hlist_node *hnode)
 }
 
 static void
-nidstats_get(cfs_hash_t *hs, struct hlist_node *hnode)
+nidstats_get(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	struct nid_stat *ns;
 
@@ -1864,7 +1864,7 @@ nidstats_get(cfs_hash_t *hs, struct hlist_node *hnode)
 }
 
 static void
-nidstats_put_locked(cfs_hash_t *hs, struct hlist_node *hnode)
+nidstats_put_locked(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	struct nid_stat *ns;
 
diff --git a/drivers/staging/lustre/lustre/osc/osc_quota.c b/drivers/staging/lustre/lustre/osc/osc_quota.c
index 9720c0e865c8..6045a78a2baa 100644
--- a/drivers/staging/lustre/lustre/osc/osc_quota.c
+++ b/drivers/staging/lustre/lustre/osc/osc_quota.c
@@ -139,7 +139,7 @@ int osc_quota_setdq(struct client_obd *cli, const unsigned int qid[],
  * Hash operations for uid/gid <-> osc_quota_info
  */
 static unsigned
-oqi_hashfn(cfs_hash_t *hs, const void *key, unsigned mask)
+oqi_hashfn(struct cfs_hash *hs, const void *key, unsigned mask)
 {
 	return cfs_hash_u32_hash(*((__u32*)key), mask);
 }
@@ -172,17 +172,17 @@ oqi_object(struct hlist_node *hnode)
 }
 
 static void
-oqi_get(cfs_hash_t *hs, struct hlist_node *hnode)
+oqi_get(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 }
 
 static void
-oqi_put_locked(cfs_hash_t *hs, struct hlist_node *hnode)
+oqi_put_locked(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 }
 
 static void
-oqi_exit(cfs_hash_t *hs, struct hlist_node *hnode)
+oqi_exit(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	struct osc_quota_info *oqi;
 
diff --git a/drivers/staging/lustre/lustre/ptlrpc/connection.c b/drivers/staging/lustre/lustre/ptlrpc/connection.c
index 17ca84208873..6756356faac1 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/connection.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/connection.c
@@ -41,7 +41,7 @@
 
 #include "ptlrpc_internal.h"
 
-static cfs_hash_t *conn_hash = NULL;
+static struct cfs_hash *conn_hash = NULL;
 static cfs_hash_ops_t conn_hash_ops;
 
 struct ptlrpc_connection *
@@ -161,7 +161,7 @@ EXPORT_SYMBOL(ptlrpc_connection_fini);
  * Hash operations for net_peer<->connection
  */
 static unsigned
-conn_hashfn(cfs_hash_t *hs, const void *key, unsigned mask)
+conn_hashfn(struct cfs_hash *hs, const void *key, unsigned mask)
 {
 	return cfs_hash_djb2_hash(key, sizeof(lnet_process_id_t), mask);
 }
@@ -195,7 +195,7 @@ conn_object(struct hlist_node *hnode)
 }
 
 static void
-conn_get(cfs_hash_t *hs, struct hlist_node *hnode)
+conn_get(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	struct ptlrpc_connection *conn;
 
@@ -204,7 +204,7 @@ conn_get(cfs_hash_t *hs, struct hlist_node *hnode)
 }
 
 static void
-conn_put_locked(cfs_hash_t *hs, struct hlist_node *hnode)
+conn_put_locked(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	struct ptlrpc_connection *conn;
 
@@ -213,7 +213,7 @@ conn_put_locked(cfs_hash_t *hs, struct hlist_node *hnode)
 }
 
 static void
-conn_exit(cfs_hash_t *hs, struct hlist_node *hnode)
+conn_exit(struct cfs_hash *hs, struct hlist_node *hnode)
 {
 	struct ptlrpc_connection *conn;
 
-- 
cgit 


From 62fbc9f75ec7dc8c385103782a2975237c218588 Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Mon, 21 Oct 2013 21:51:37 -0700
Subject: staging: lustre: lnet: Remove unnecessary spaces in lib-lnet.h

Remove spaces between function names and open parentheses to
meet kernel coding style and eliminate extra space warnings
generated by checkpatch.pl

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../staging/lustre/include/linux/lnet/lib-lnet.h   | 78 +++++++++++-----------
 1 file changed, 39 insertions(+), 39 deletions(-)

diff --git a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h
index 59bff0bea816..8869f10ba08e 100644
--- a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h
+++ b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h
@@ -79,20 +79,20 @@ extern lnet_t  the_lnet;			/* THE network */
 /** exclusive lock */
 #define LNET_LOCK_EX	    CFS_PERCPT_LOCK_EX
 
-static inline int lnet_is_wire_handle_none (lnet_handle_wire_t *wh)
+static inline int lnet_is_wire_handle_none(lnet_handle_wire_t *wh)
 {
 	return (wh->wh_interface_cookie == LNET_WIRE_HANDLE_COOKIE_NONE &&
 		wh->wh_object_cookie == LNET_WIRE_HANDLE_COOKIE_NONE);
 }
 
-static inline int lnet_md_exhausted (lnet_libmd_t *md)
+static inline int lnet_md_exhausted(lnet_libmd_t *md)
 {
 	return (md->md_threshold == 0 ||
 		((md->md_options & LNET_MD_MAX_SIZE) != 0 &&
 		 md->md_offset + md->md_max_size > md->md_length));
 }
 
-static inline int lnet_md_unlinkable (lnet_libmd_t *md)
+static inline int lnet_md_unlinkable(lnet_libmd_t *md)
 {
 	/* Should unlink md when its refcount is 0 and either:
 	 *  - md has been flagged for deletion (by auto unlink or LNetM[DE]Unlink,
@@ -193,31 +193,31 @@ int lnet_freelist_init(lnet_freelist_t *fl, int n, int size);
 void lnet_freelist_fini(lnet_freelist_t *fl);
 
 static inline void *
-lnet_freelist_alloc (lnet_freelist_t *fl)
+lnet_freelist_alloc(lnet_freelist_t *fl)
 {
 	/* ALWAYS called with liblock held */
 	lnet_freeobj_t *o;
 
-	if (list_empty (&fl->fl_list))
+	if (list_empty(&fl->fl_list))
 		return (NULL);
 
-	o = list_entry (fl->fl_list.next, lnet_freeobj_t, fo_list);
-	list_del (&o->fo_list);
+	o = list_entry(fl->fl_list.next, lnet_freeobj_t, fo_list);
+	list_del(&o->fo_list);
 	return ((void *)&o->fo_contents);
 }
 
 static inline void
-lnet_freelist_free (lnet_freelist_t *fl, void *obj)
+lnet_freelist_free(lnet_freelist_t *fl, void *obj)
 {
 	/* ALWAYS called with liblock held */
-	lnet_freeobj_t *o = list_entry (obj, lnet_freeobj_t, fo_contents);
+	lnet_freeobj_t *o = list_entry(obj, lnet_freeobj_t, fo_contents);
 
-	list_add (&o->fo_list, &fl->fl_list);
+	list_add(&o->fo_list, &fl->fl_list);
 }
 
 
 static inline lnet_eq_t *
-lnet_eq_alloc (void)
+lnet_eq_alloc(void)
 {
 	/* NEVER called with resource lock held */
 	struct lnet_res_container *rec = &the_lnet.ln_eq_container;
@@ -251,7 +251,7 @@ lnet_eq_free(lnet_eq_t *eq)
 }
 
 static inline lnet_libmd_t *
-lnet_md_alloc (lnet_md_t *umd)
+lnet_md_alloc(lnet_md_t *umd)
 {
 	/* NEVER called with resource lock held */
 	struct lnet_res_container *rec = the_lnet.ln_md_containers[0];
@@ -322,7 +322,7 @@ lnet_me_free(lnet_me_t *me)
 }
 
 static inline lnet_msg_t *
-lnet_msg_alloc (void)
+lnet_msg_alloc(void)
 {
 	/* NEVER called with network lock held */
 	struct lnet_msg_container *msc = the_lnet.ln_msg_containers[0];
@@ -353,7 +353,7 @@ lnet_msg_free_locked(lnet_msg_t *msg)
 }
 
 static inline void
-lnet_msg_free (lnet_msg_t *msg)
+lnet_msg_free(lnet_msg_t *msg)
 {
 	lnet_net_lock(0);
 	lnet_msg_free_locked(msg);
@@ -363,7 +363,7 @@ lnet_msg_free (lnet_msg_t *msg)
 #else /* !LNET_USE_LIB_FREELIST */
 
 static inline lnet_eq_t *
-lnet_eq_alloc (void)
+lnet_eq_alloc(void)
 {
 	/* NEVER called with liblock held */
 	lnet_eq_t *eq;
@@ -380,7 +380,7 @@ lnet_eq_free(lnet_eq_t *eq)
 }
 
 static inline lnet_libmd_t *
-lnet_md_alloc (lnet_md_t *umd)
+lnet_md_alloc(lnet_md_t *umd)
 {
 	/* NEVER called with liblock held */
 	lnet_libmd_t *md;
@@ -423,7 +423,7 @@ lnet_md_free(lnet_libmd_t *md)
 }
 
 static inline lnet_me_t *
-lnet_me_alloc (void)
+lnet_me_alloc(void)
 {
 	/* NEVER called with liblock held */
 	lnet_me_t *me;
@@ -479,7 +479,7 @@ lnet_res_lh_invalidate(lnet_libhandle_t *lh)
 }
 
 static inline void
-lnet_eq2handle (lnet_handle_eq_t *handle, lnet_eq_t *eq)
+lnet_eq2handle(lnet_handle_eq_t *handle, lnet_eq_t *eq)
 {
 	if (eq == NULL) {
 		LNetInvalidateHandle(handle);
@@ -503,7 +503,7 @@ lnet_handle2eq(lnet_handle_eq_t *handle)
 }
 
 static inline void
-lnet_md2handle (lnet_handle_md_t *handle, lnet_libmd_t *md)
+lnet_md2handle(lnet_handle_md_t *handle, lnet_libmd_t *md)
 {
 	handle->cookie = md->md_lh.lh_cookie;
 }
@@ -544,7 +544,7 @@ lnet_wire_handle2md(lnet_handle_wire_t *wh)
 }
 
 static inline void
-lnet_me2handle (lnet_handle_me_t *handle, lnet_me_t *me)
+lnet_me2handle(lnet_handle_me_t *handle, lnet_me_t *me)
 {
 	handle->cookie = me->me_lh.lh_cookie;
 }
@@ -568,7 +568,7 @@ lnet_handle2me(lnet_handle_me_t *handle)
 static inline void
 lnet_peer_addref_locked(lnet_peer_t *lp)
 {
-	LASSERT (lp->lp_refcount > 0);
+	LASSERT(lp->lp_refcount > 0);
 	lp->lp_refcount++;
 }
 
@@ -577,7 +577,7 @@ extern void lnet_destroy_peer_locked(lnet_peer_t *lp);
 static inline void
 lnet_peer_decref_locked(lnet_peer_t *lp)
 {
-	LASSERT (lp->lp_refcount > 0);
+	LASSERT(lp->lp_refcount > 0);
 	lp->lp_refcount--;
 	if (lp->lp_refcount == 0)
 		lnet_destroy_peer_locked(lp);
@@ -660,7 +660,7 @@ void lnet_proc_init(void);
 void lnet_proc_fini(void);
 int  lnet_rtrpools_alloc(int im_a_router);
 void lnet_rtrpools_free(void);
-lnet_remotenet_t *lnet_find_net_locked (__u32 net);
+lnet_remotenet_t *lnet_find_net_locked(__u32 net);
 
 int lnet_islocalnid(lnet_nid_t nid);
 int lnet_islocalnet(__u32 net);
@@ -733,11 +733,11 @@ int lnet_portals_create(void);
 void lnet_portals_destroy(void);
 
 /* message functions */
-int lnet_parse (lnet_ni_t *ni, lnet_hdr_t *hdr,
+int lnet_parse(lnet_ni_t *ni, lnet_hdr_t *hdr,
 		lnet_nid_t fromnid, void *private, int rdma_req);
 void lnet_recv(lnet_ni_t *ni, void *private, lnet_msg_t *msg, int delayed,
 	       unsigned int offset, unsigned int mlen, unsigned int rlen);
-lnet_msg_t *lnet_create_reply_msg (lnet_ni_t *ni, lnet_msg_t *get_msg);
+lnet_msg_t *lnet_create_reply_msg(lnet_ni_t *ni, lnet_msg_t *get_msg);
 void lnet_set_reply_msg_len(lnet_ni_t *ni, lnet_msg_t *msg, unsigned int len);
 void lnet_finalize(lnet_ni_t *ni, lnet_msg_t *msg, int rc);
 void lnet_drop_delayed_msg_list(struct list_head *head, char *reason);
@@ -748,36 +748,36 @@ void lnet_msg_container_cleanup(struct lnet_msg_container *container);
 void lnet_msg_containers_destroy(void);
 int lnet_msg_containers_create(void);
 
-char *lnet_msgtyp2str (int type);
-void lnet_print_hdr (lnet_hdr_t * hdr);
+char *lnet_msgtyp2str(int type);
+void lnet_print_hdr(lnet_hdr_t * hdr);
 int lnet_fail_nid(lnet_nid_t nid, unsigned int threshold);
 
 void lnet_counters_get(lnet_counters_t *counters);
 void lnet_counters_reset(void);
 
-unsigned int lnet_iov_nob (unsigned int niov, struct iovec *iov);
-int lnet_extract_iov (int dst_niov, struct iovec *dst,
+unsigned int lnet_iov_nob(unsigned int niov, struct iovec *iov);
+int lnet_extract_iov(int dst_niov, struct iovec *dst,
 		      int src_niov, struct iovec *src,
 		      unsigned int offset, unsigned int len);
 
-unsigned int lnet_kiov_nob (unsigned int niov, lnet_kiov_t *iov);
-int lnet_extract_kiov (int dst_niov, lnet_kiov_t *dst,
+unsigned int lnet_kiov_nob(unsigned int niov, lnet_kiov_t *iov);
+int lnet_extract_kiov(int dst_niov, lnet_kiov_t *dst,
 		      int src_niov, lnet_kiov_t *src,
 		      unsigned int offset, unsigned int len);
 
-void lnet_copy_iov2iov (unsigned int ndiov, struct iovec *diov,
+void lnet_copy_iov2iov(unsigned int ndiov, struct iovec *diov,
 			unsigned int doffset,
 			unsigned int nsiov, struct iovec *siov,
 			unsigned int soffset, unsigned int nob);
-void lnet_copy_kiov2iov (unsigned int niov, struct iovec *iov,
+void lnet_copy_kiov2iov(unsigned int niov, struct iovec *iov,
 			 unsigned int iovoffset,
 			 unsigned int nkiov, lnet_kiov_t *kiov,
 			 unsigned int kiovoffset, unsigned int nob);
-void lnet_copy_iov2kiov (unsigned int nkiov, lnet_kiov_t *kiov,
+void lnet_copy_iov2kiov(unsigned int nkiov, lnet_kiov_t *kiov,
 			 unsigned int kiovoffset,
 			 unsigned int niov, struct iovec *iov,
 			 unsigned int iovoffset, unsigned int nob);
-void lnet_copy_kiov2kiov (unsigned int ndkiov, lnet_kiov_t *dkiov,
+void lnet_copy_kiov2kiov(unsigned int ndkiov, lnet_kiov_t *dkiov,
 			  unsigned int doffset,
 			  unsigned int nskiov, lnet_kiov_t *skiov,
 			  unsigned int soffset, unsigned int nob);
@@ -829,7 +829,7 @@ void lnet_md_deconstruct(lnet_libmd_t *lmd, lnet_md_t *umd);
 
 void lnet_register_lnd(lnd_t *lnd);
 void lnet_unregister_lnd(lnd_t *lnd);
-int lnet_set_ip_niaddr (lnet_ni_t *ni);
+int lnet_set_ip_niaddr(lnet_ni_t *ni);
 
 int lnet_connect(socket_t **sockp, lnet_nid_t peer_nid,
 		 __u32 local_ip, __u32 peer_ip, int peer_port);
@@ -858,9 +858,9 @@ void lnet_ping_target_fini(void);
 int lnet_ping(lnet_process_id_t id, int timeout_ms,
 	      lnet_process_id_t *ids, int n_ids);
 
-int lnet_parse_ip2nets (char **networksp, char *ip2nets);
-int lnet_parse_routes (char *route_str, int *im_a_router);
-int lnet_parse_networks (struct list_head *nilist, char *networks);
+int lnet_parse_ip2nets(char **networksp, char *ip2nets);
+int lnet_parse_routes(char *route_str, int *im_a_router);
+int lnet_parse_networks(struct list_head *nilist, char *networks);
 
 int lnet_nid2peer_locked(lnet_peer_t **lpp, lnet_nid_t nid, int cpt);
 lnet_peer_t *lnet_find_peer_locked(struct lnet_peer_table *ptable,
-- 
cgit 


From 02816395c090d17a4d8b8ae978d064e900b63d9f Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Mon, 21 Oct 2013 21:52:03 -0700
Subject: staging: lustre: lnet: Remove unnecessary () from return statements

Remove unnecessary parentheses from return statements in lib-lnet.h
to meet kernel coding style.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/include/linux/lnet/lib-lnet.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h
index 8869f10ba08e..0eb2e06eb864 100644
--- a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h
+++ b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h
@@ -199,11 +199,11 @@ lnet_freelist_alloc(lnet_freelist_t *fl)
 	lnet_freeobj_t *o;
 
 	if (list_empty(&fl->fl_list))
-		return (NULL);
+		return NULL;
 
 	o = list_entry(fl->fl_list.next, lnet_freeobj_t, fo_list);
 	list_del(&o->fo_list);
-	return ((void *)&o->fo_contents);
+	return (void *)&o->fo_contents;
 }
 
 static inline void
@@ -369,7 +369,7 @@ lnet_eq_alloc(void)
 	lnet_eq_t *eq;
 
 	LIBCFS_ALLOC(eq, sizeof(*eq));
-	return (eq);
+	return eq;
 }
 
 static inline void
@@ -405,7 +405,7 @@ lnet_md_alloc(lnet_md_t *umd)
 		INIT_LIST_HEAD(&md->md_list);
 	}
 
-	return (md);
+	return md;
 }
 
 static inline void
@@ -429,7 +429,7 @@ lnet_me_alloc(void)
 	lnet_me_t *me;
 
 	LIBCFS_ALLOC(me, sizeof(*me));
-	return (me);
+	return me;
 }
 
 static inline void
@@ -448,7 +448,7 @@ lnet_msg_alloc(void)
 	LIBCFS_ALLOC(msg, sizeof(*msg));
 
 	/* no need to zero, LIBCFS_ALLOC does for us */
-	return (msg);
+	return msg;
 }
 
 static inline void
-- 
cgit 


From ac0a28719491390c7f21a43217a3eda578723c41 Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Mon, 21 Oct 2013 21:52:29 -0700
Subject: staging: lustre: lnet: Reformat pointer variable in lib-lnet.h

Reformat a pointer variable in lib-lnet.h to meet kernel
coding style and eliminate pointer format warning
generated by checkpatch.pl

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/include/linux/lnet/lib-lnet.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h
index 0eb2e06eb864..bf301048c7ab 100644
--- a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h
+++ b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h
@@ -749,7 +749,7 @@ void lnet_msg_containers_destroy(void);
 int lnet_msg_containers_create(void);
 
 char *lnet_msgtyp2str(int type);
-void lnet_print_hdr(lnet_hdr_t * hdr);
+void lnet_print_hdr(lnet_hdr_t *hdr);
 int lnet_fail_nid(lnet_nid_t nid, unsigned int threshold);
 
 void lnet_counters_get(lnet_counters_t *counters);
-- 
cgit 


From 5e1b887fa2d6e21995e7f9f55ab256cc8bae4a66 Mon Sep 17 00:00:00 2001
From: Valentina Manea <valentina.manea.m@gmail.com>
Date: Wed, 23 Oct 2013 10:30:19 +0300
Subject: staging: lustre: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO

This patch fixes coccinelle error regarding usage of IS_ERR and
PTR_ERR instead of PTR_ERR_OR_ZERO.

Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/fid/fid_request.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/staging/lustre/lustre/fid/fid_request.c b/drivers/staging/lustre/lustre/fid/fid_request.c
index 66007b57018b..79fc2fe131a2 100644
--- a/drivers/staging/lustre/lustre/fid/fid_request.c
+++ b/drivers/staging/lustre/lustre/fid/fid_request.c
@@ -548,9 +548,7 @@ static int __init fid_mod_init(void)
 	seq_type_proc_dir = lprocfs_register(LUSTRE_SEQ_NAME,
 					     proc_lustre_root,
 					     NULL, NULL);
-	if (IS_ERR(seq_type_proc_dir))
-		return PTR_ERR(seq_type_proc_dir);
-	return 0;
+	return PTR_ERR_OR_ZERO(seq_type_proc_dir);
 }
 
 static void __exit fid_mod_exit(void)
-- 
cgit 


From 218c394a9acece79fce6c16d2b62f753cd993a0e Mon Sep 17 00:00:00 2001
From: Himangi Saraogi <himangi774@gmail.com>
Date: Thu, 24 Oct 2013 02:10:11 +0530
Subject: drivers/staging/lustre/lustre/osc/osc_io.c : remove space prohibited
 warning

There was a warning on running checkpatch.pl on the file
drivers/staging/lustre/lustre/osc/osc_io.c which stated:
WARNING: space prohibited between function name and open parenthesis '('
108: FILE: staging/lustre/lustre/osc/osc_io.c:108:
+	LIST_HEAD     (list);

total: 0 errors, 1 warnings, 828 lines checked

To get rid of the warning the extra spaces were eliminated.

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/osc/osc_io.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lustre/osc/osc_io.c b/drivers/staging/lustre/lustre/osc/osc_io.c
index 3aeaf845cf27..681d60a7d5ef 100644
--- a/drivers/staging/lustre/lustre/osc/osc_io.c
+++ b/drivers/staging/lustre/lustre/osc/osc_io.c
@@ -105,7 +105,7 @@ static int osc_io_submit(const struct lu_env *env,
 	struct osc_object *osc  = NULL; /* to keep gcc happy */
 	struct osc_page   *opg;
 	struct cl_io      *io;
-	LIST_HEAD     (list);
+	LIST_HEAD(list);
 
 	struct cl_page_list *qin      = &queue->c2_qin;
 	struct cl_page_list *qout     = &queue->c2_qout;
-- 
cgit 


From f93c0616867bb40d5b974846658e2c9248e31cf4 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Thu, 24 Oct 2013 19:26:23 +0530
Subject: Staging: lustre: Fix space prohibited between function name and open
 paranthesis

This patch fixes the following checkpatch.pl issues in lnet/lnet/acceptor.c:
WARNING: space prohibited between function name and open parenthesis '('

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/lnet/acceptor.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/lustre/lnet/lnet/acceptor.c b/drivers/staging/lustre/lnet/lnet/acceptor.c
index bb15bde0704c..27c1fdf560eb 100644
--- a/drivers/staging/lustre/lnet/lnet/acceptor.c
+++ b/drivers/staging/lustre/lnet/lnet/acceptor.c
@@ -95,7 +95,7 @@ lnet_acceptor_timeout(void)
 EXPORT_SYMBOL(lnet_acceptor_timeout);
 
 void
-lnet_connect_console_error (int rc, lnet_nid_t peer_nid,
+lnet_connect_console_error(int rc, lnet_nid_t peer_nid,
 			   __u32 peer_ip, int peer_port)
 {
 	switch (rc) {
@@ -162,7 +162,7 @@ lnet_connect(socket_t **sockp, lnet_nid_t peer_nid,
 	int		     port;
 	int		     fatal;
 
-	CLASSERT (sizeof(cr) <= 16);	    /* not too big to be on the stack */
+	CLASSERT(sizeof(cr) <= 16);	    /* not too big to be on the stack */
 
 	for (port = LNET_ACCEPTOR_MAX_RESERVED_PORT;
 	     port >= LNET_ACCEPTOR_MIN_RESERVED_PORT;
@@ -178,7 +178,7 @@ lnet_connect(socket_t **sockp, lnet_nid_t peer_nid,
 			continue;
 		}
 
-		CLASSERT (LNET_PROTO_ACCEPTOR_VERSION == 1);
+		CLASSERT(LNET_PROTO_ACCEPTOR_VERSION == 1);
 
 		cr.acr_magic   = LNET_PROTO_ACCEPTOR_MAGIC;
 		cr.acr_version = LNET_PROTO_ACCEPTOR_VERSION;
@@ -232,10 +232,10 @@ lnet_accept(socket_t *sock, __u32 magic)
 	lnet_ni_t	      *ni;
 	char		   *str;
 
-	LASSERT (sizeof(cr) <= 16);	     /* not too big for the stack */
+	LASSERT(sizeof(cr) <= 16);	     /* not too big for the stack */
 
 	rc = libcfs_sock_getaddr(sock, 1, &peer_ip, &peer_port);
-	LASSERT (rc == 0);		      /* we succeeded before */
+	LASSERT(rc == 0);		      /* we succeeded before */
 
 	if (!lnet_accept_magic(magic, LNET_PROTO_ACCEPTOR_MAGIC)) {
 
@@ -245,7 +245,7 @@ lnet_accept(socket_t *sock, __u32 magic)
 			 * thing sent will be a version query.  I send back
 			 * LNET_PROTO_ACCEPTOR_MAGIC to tell her I'm "old" */
 
-			memset (&cr, 0, sizeof(cr));
+			memset(&cr, 0, sizeof(cr));
 			cr.acr_magic = LNET_PROTO_ACCEPTOR_MAGIC;
 			cr.acr_version = LNET_PROTO_ACCEPTOR_VERSION;
 			rc = libcfs_sock_write(sock, &cr, sizeof(cr),
@@ -292,7 +292,7 @@ lnet_accept(socket_t *sock, __u32 magic)
 		 * "old". */
 		int peer_version = cr.acr_version;
 
-		memset (&cr, 0, sizeof(cr));
+		memset(&cr, 0, sizeof(cr));
 		cr.acr_magic = LNET_PROTO_ACCEPTOR_MAGIC;
 		cr.acr_version = LNET_PROTO_ACCEPTOR_VERSION;
 
@@ -358,7 +358,7 @@ lnet_acceptor(void *arg)
 	int	    peer_port;
 	int	    secure = (int)((long_ptr_t)arg);
 
-	LASSERT (lnet_acceptor_state.pta_sock == NULL);
+	LASSERT(lnet_acceptor_state.pta_sock == NULL);
 
 	cfs_block_allsigs();
 
@@ -469,7 +469,7 @@ lnet_acceptor_start(void)
 	long rc2;
 	long secure;
 
-	LASSERT (lnet_acceptor_state.pta_sock == NULL);
+	LASSERT(lnet_acceptor_state.pta_sock == NULL);
 
 	rc = lnet_acceptor_get_tunables();
 	if (rc != 0)
-- 
cgit 


From 735c2e264b1595bda4b3886152aebe05c082a3ef Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Thu, 24 Oct 2013 19:27:14 +0530
Subject: Staging: lustre: Fix EXPORT_SYMBOL should immediately follow its
 function/variable

This patch fixes the following checkpatch.pl issues in lnet/lnet/acceptor.c:
WARNING: EXPORT_SYMBOL(foo); should immediately follow its function/variable

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/lnet/acceptor.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/staging/lustre/lnet/lnet/acceptor.c b/drivers/staging/lustre/lnet/lnet/acceptor.c
index 27c1fdf560eb..0fee292b09e4 100644
--- a/drivers/staging/lustre/lnet/lnet/acceptor.c
+++ b/drivers/staging/lustre/lnet/lnet/acceptor.c
@@ -53,6 +53,7 @@ lnet_acceptor_port(void)
 {
 	return accept_port;
 }
+EXPORT_SYMBOL(lnet_acceptor_port);
 
 static inline int
 lnet_accept_magic(__u32 magic, __u32 constant)
@@ -61,9 +62,6 @@ lnet_accept_magic(__u32 magic, __u32 constant)
 		magic == __swab32(constant));
 }
 
-
-EXPORT_SYMBOL(lnet_acceptor_port);
-
 static char *accept = "secure";
 
 CFS_MODULE_PARM(accept, "s", charp, 0444,
-- 
cgit 


From 5129097bf1d24e3be897091f3747f9fd0fce8ea8 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Thu, 24 Oct 2013 19:28:51 +0530
Subject: Staging: lustre: Fix quoted strings split across lines

This patch fixes the following checkpatch.pl issues in lnet/lnet/acceptor.c:
WARNING: quoted string split across lines

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/lnet/acceptor.c | 66 ++++++++++-------------------
 1 file changed, 23 insertions(+), 43 deletions(-)

diff --git a/drivers/staging/lustre/lnet/lnet/acceptor.c b/drivers/staging/lustre/lnet/lnet/acceptor.c
index 0fee292b09e4..7de86302c8c1 100644
--- a/drivers/staging/lustre/lnet/lnet/acceptor.c
+++ b/drivers/staging/lustre/lnet/lnet/acceptor.c
@@ -99,51 +99,39 @@ lnet_connect_console_error(int rc, lnet_nid_t peer_nid,
 	switch (rc) {
 	/* "normal" errors */
 	case -ECONNREFUSED:
-		CNETERR("Connection to %s at host %pI4h on port %d was "
-			"refused: check that Lustre is running on that node.\n",
+		CNETERR("Connection to %s at host %pI4h on port %d was refused: check that Lustre is running on that node.\n",
 			libcfs_nid2str(peer_nid),
 			&peer_ip, peer_port);
 		break;
 	case -EHOSTUNREACH:
 	case -ENETUNREACH:
-		CNETERR("Connection to %s at host %pI4h "
-			"was unreachable: the network or that node may "
-			"be down, or Lustre may be misconfigured.\n",
+		CNETERR("Connection to %s at host %pI4h was unreachable: the network or that node may be down, or Lustre may be misconfigured.\n",
 			libcfs_nid2str(peer_nid), &peer_ip);
 		break;
 	case -ETIMEDOUT:
-		CNETERR("Connection to %s at host %pI4h on "
-			"port %d took too long: that node may be hung "
-			"or experiencing high load.\n",
+		CNETERR("Connection to %s at host %pI4h on port %d took too long: that node may be hung or experiencing high load.\n",
 			libcfs_nid2str(peer_nid),
 			&peer_ip, peer_port);
 		break;
 	case -ECONNRESET:
-		LCONSOLE_ERROR_MSG(0x11b, "Connection to %s at host %pI4h"
-				   " on port %d was reset: "
-				   "is it running a compatible version of "
-				   "Lustre and is %s one of its NIDs?\n",
+		LCONSOLE_ERROR_MSG(0x11b, "Connection to %s at host %pI4h on port %d was reset: is it running a compatible version of Lustre and is %s one of its NIDs?\n",
 				   libcfs_nid2str(peer_nid),
 				   &peer_ip, peer_port,
 				   libcfs_nid2str(peer_nid));
 		break;
 	case -EPROTO:
-		LCONSOLE_ERROR_MSG(0x11c, "Protocol error connecting to %s at "
-				   "host %pI4h on port %d: is it running "
-				   "a compatible version of Lustre?\n",
+		LCONSOLE_ERROR_MSG(0x11c, "Protocol error connecting to %s at host %pI4h on port %d: is it running a compatible version of Lustre?\n",
 				   libcfs_nid2str(peer_nid),
 				   &peer_ip, peer_port);
 		break;
 	case -EADDRINUSE:
-		LCONSOLE_ERROR_MSG(0x11d, "No privileged ports available to "
-				   "connect to %s at host %pI4h on port "
-				   "%d\n", libcfs_nid2str(peer_nid),
+		LCONSOLE_ERROR_MSG(0x11d, "No privileged ports available to connect to %s at host %pI4h on port %d\n",
+				   libcfs_nid2str(peer_nid),
 				   &peer_ip, peer_port);
 		break;
 	default:
-		LCONSOLE_ERROR_MSG(0x11e, "Unexpected error %d connecting to %s"
-				   " at host %pI4h on port %d\n", rc,
-				   libcfs_nid2str(peer_nid),
+		LCONSOLE_ERROR_MSG(0x11e, "Unexpected error %d connecting to %s at host %pI4h on port %d\n",
+				   rc, libcfs_nid2str(peer_nid),
 				   &peer_ip, peer_port);
 		break;
 	}
@@ -250,8 +238,7 @@ lnet_accept(socket_t *sock, __u32 magic)
 					       accept_timeout);
 
 			if (rc != 0)
-				CERROR("Error sending magic+version in response"
-				       "to LNET magic from %pI4h: %d\n",
+				CERROR("Error sending magic+version in response to LNET magic from %pI4h: %d\n",
 				       &peer_ip, rc);
 			return -EPROTO;
 		}
@@ -263,8 +250,7 @@ lnet_accept(socket_t *sock, __u32 magic)
 		else
 			str = "unrecognised";
 
-		LCONSOLE_ERROR_MSG(0x11f, "Refusing connection from %pI4h"
-				   " magic %08x: %s acceptor protocol\n",
+		LCONSOLE_ERROR_MSG(0x11f, "Refusing connection from %pI4h magic %08x: %s acceptor protocol\n",
 				   &peer_ip, magic, str);
 		return -EPROTO;
 	}
@@ -275,8 +261,8 @@ lnet_accept(socket_t *sock, __u32 magic)
 			      sizeof(cr.acr_version),
 			      accept_timeout);
 	if (rc != 0) {
-		CERROR("Error %d reading connection request version from "
-		       "%pI4h\n", rc, &peer_ip);
+		CERROR("Error %d reading connection request version from %pI4h\n",
+			rc, &peer_ip);
 		return -EIO;
 	}
 
@@ -298,8 +284,7 @@ lnet_accept(socket_t *sock, __u32 magic)
 				       accept_timeout);
 
 		if (rc != 0)
-			CERROR("Error sending magic+version in response"
-			       "to version %d from %pI4h: %d\n",
+			CERROR("Error sending magic+version in response to version %d from %pI4h: %d\n",
 			       peer_version, &peer_ip, rc);
 		return -EPROTO;
 	}
@@ -309,8 +294,8 @@ lnet_accept(socket_t *sock, __u32 magic)
 			      offsetof(lnet_acceptor_connreq_t, acr_nid),
 			      accept_timeout);
 	if (rc != 0) {
-		CERROR("Error %d reading connection request from "
-		       "%pI4h\n", rc, &peer_ip);
+		CERROR("Error %d reading connection request from %pI4h\n",
+			rc, &peer_ip);
 		return -EIO;
 	}
 
@@ -322,8 +307,7 @@ lnet_accept(socket_t *sock, __u32 magic)
 	    ni->ni_nid != cr.acr_nid) { /* right NET, wrong NID! */
 		if (ni != NULL)
 			lnet_ni_decref(ni);
-		LCONSOLE_ERROR_MSG(0x120, "Refusing connection from %pI4h"
-				   " for %s: No matching NI\n",
+		LCONSOLE_ERROR_MSG(0x120, "Refusing connection from %pI4h for %s: No matching NI\n",
 				   &peer_ip, libcfs_nid2str(cr.acr_nid));
 		return -EPERM;
 	}
@@ -331,8 +315,7 @@ lnet_accept(socket_t *sock, __u32 magic)
 	if (ni->ni_lnd->lnd_accept == NULL) {
 		/* This catches a request for the loopback LND */
 		lnet_ni_decref(ni);
-		LCONSOLE_ERROR_MSG(0x121, "Refusing connection from %pI4h"
-				  " for %s: NI doesn not accept IP connections\n",
+		LCONSOLE_ERROR_MSG(0x121, "Refusing connection from %pI4h for %s: NI doesn not accept IP connections\n",
 				  &peer_ip, libcfs_nid2str(cr.acr_nid));
 		return -EPERM;
 	}
@@ -364,12 +347,10 @@ lnet_acceptor(void *arg)
 				0, accept_port, accept_backlog);
 	if (rc != 0) {
 		if (rc == -EADDRINUSE)
-			LCONSOLE_ERROR_MSG(0x122, "Can't start acceptor on port"
-					   " %d: port already in use\n",
+			LCONSOLE_ERROR_MSG(0x122, "Can't start acceptor on port %d: port already in use\n",
 					   accept_port);
 		else
-			LCONSOLE_ERROR_MSG(0x123, "Can't start acceptor on port "
-					   "%d: unexpected error %d\n",
+			LCONSOLE_ERROR_MSG(0x123, "Can't start acceptor on port %d: unexpected error %d\n",
 					   accept_port, rc);
 
 		lnet_acceptor_state.pta_sock = NULL;
@@ -408,8 +389,7 @@ lnet_acceptor(void *arg)
 		}
 
 		if (secure && peer_port > LNET_ACCEPTOR_MAX_RESERVED_PORT) {
-			CERROR("Refusing connection from %pI4h: "
-			       "insecure port %d\n",
+			CERROR("Refusing connection from %pI4h: insecure port %d\n",
 			       &peer_ip, peer_port);
 			goto failed;
 		}
@@ -417,8 +397,8 @@ lnet_acceptor(void *arg)
 		rc = libcfs_sock_read(newsock, &magic, sizeof(magic),
 				      accept_timeout);
 		if (rc != 0) {
-			CERROR("Error %d reading connection request from "
-			       "%pI4h\n", rc, &peer_ip);
+			CERROR("Error %d reading connection request from %pI4h\n",
+				rc, &peer_ip);
 			goto failed;
 		}
 
-- 
cgit 


From 9f100b8b66d3532defb4205b3f63674363c81575 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Thu, 24 Oct 2013 19:29:52 +0530
Subject: Staging: lustre: Fix initialisation of statics to 0 or NULL

This patch fixes the following checkpatch.pl issues in lnet/lnet/acceptor.c:
ERROR: do not initialise statics to 0 or NULL

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/lnet/acceptor.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lnet/lnet/acceptor.c b/drivers/staging/lustre/lnet/lnet/acceptor.c
index 7de86302c8c1..2beb9a003276 100644
--- a/drivers/staging/lustre/lnet/lnet/acceptor.c
+++ b/drivers/staging/lustre/lnet/lnet/acceptor.c
@@ -73,7 +73,7 @@ CFS_MODULE_PARM(accept_backlog, "i", int, 0444,
 CFS_MODULE_PARM(accept_timeout, "i", int, 0644,
 		"Acceptor's timeout (seconds)");
 
-static char *accept_type = NULL;
+static char *accept_type;
 
 int
 lnet_acceptor_get_tunables(void)
-- 
cgit 


From b51546141b6832452892ce18fbf82b7be5a0a12c Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Thu, 24 Oct 2013 19:30:37 +0530
Subject: Staging: lustre: Fix indentation of labels

This patch fixes the following checkpatch.pl issues in lnet/lnet/acceptor.c:
WARNING: labels should not be indented

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/lnet/acceptor.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lnet/lnet/acceptor.c b/drivers/staging/lustre/lnet/lnet/acceptor.c
index 2beb9a003276..92c60a756644 100644
--- a/drivers/staging/lustre/lnet/lnet/acceptor.c
+++ b/drivers/staging/lustre/lnet/lnet/acceptor.c
@@ -408,7 +408,7 @@ lnet_acceptor(void *arg)
 
 		continue;
 
-	failed:
+failed:
 		libcfs_sock_release(newsock);
 	}
 
-- 
cgit 


From 90131cc975b927d3033f2d5cce6e57226178d12c Mon Sep 17 00:00:00 2001
From: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Date: Thu, 24 Oct 2013 23:36:16 +0530
Subject: staging: lustre: added space before the open parenthesis

added space before the open parenthesis to fix checkpatch error

Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/lvfs/lvfs_linux.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c b/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c
index ea3771550788..bb8b152e9a2a 100644
--- a/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c
+++ b/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c
@@ -65,9 +65,9 @@ EXPORT_SYMBOL(obd_memory);
 					      msg)
 # define ASSERT_KERNEL_CTXT(msg) LASSERTF(segment_eq(get_fs(), get_ds()), msg)
 #else
-# define ASSERT_CTXT_MAGIC(magic) do {} while(0)
-# define ASSERT_NOT_KERNEL_CTXT(msg) do {} while(0)
-# define ASSERT_KERNEL_CTXT(msg) do {} while(0)
+# define ASSERT_CTXT_MAGIC(magic) do {} while (0)
+# define ASSERT_NOT_KERNEL_CTXT(msg) do {} while (0)
+# define ASSERT_KERNEL_CTXT(msg) do {} while (0)
 #endif
 
 static void push_group_info(struct lvfs_run_ctxt *save,
-- 
cgit 


From 13a7e2cf9b1113b9d75058d74f91b1faeea22f43 Mon Sep 17 00:00:00 2001
From: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Date: Thu, 24 Oct 2013 23:36:17 +0530
Subject: staging: lustre: replaced C99 comment style by C89 style

As per coding style guidelines C89 comment style /*...*/
is preferred over C99 comment style //, hence replaced
C99 comment style by C89 comment style to fix checkpatch
error

Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/lvfs/lvfs_linux.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c b/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c
index bb8b152e9a2a..1ef06fea793b 100644
--- a/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c
+++ b/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c
@@ -114,7 +114,7 @@ void push_ctxt(struct lvfs_run_ctxt *save, struct lvfs_run_ctxt *new_ctx,
 	if (new_ctx->dt != NULL)
 		return;
 
-	//ASSERT_NOT_KERNEL_CTXT("already in kernel context!\n");
+	/* ASSERT_NOT_KERNEL_CTXT("already in kernel context!\n"); */
 	ASSERT_CTXT_MAGIC(new_ctx->magic);
 	OBD_SET_CTXT_MAGIC(save);
 
-- 
cgit 


From 24edbe4fbf9ea9fb1fd7ce220f5dd0abe4a0d599 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sat, 26 Oct 2013 00:21:24 +0530
Subject: Staging: lustre: Fix space prohibited between function and open
 paranthesis

This patch fixes the following checkpatch.pl warning in
lnet/lnet/config.c-
WARNING: space prohibited between function name and open parenthesis '('

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/lnet/config.c | 72 +++++++++++++++----------------
 1 file changed, 36 insertions(+), 36 deletions(-)

diff --git a/drivers/staging/lustre/lnet/lnet/config.c b/drivers/staging/lustre/lnet/lnet/config.c
index 28711e6e8b03..3307749a354d 100644
--- a/drivers/staging/lustre/lnet/lnet/config.c
+++ b/drivers/staging/lustre/lnet/lnet/config.c
@@ -65,7 +65,7 @@ lnet_syntax(char *name, char *str, int offset, int width)
 }
 
 int
-lnet_issep (char c)
+lnet_issep(char c)
 {
 	switch (c) {
 	case '\n':
@@ -83,7 +83,7 @@ lnet_net_unique(__u32 net, struct list_head *nilist)
 	struct list_head       *tmp;
 	lnet_ni_t	*ni;
 
-	list_for_each (tmp, nilist) {
+	list_for_each(tmp, nilist) {
 		ni = list_entry(tmp, lnet_ni_t, ni_list);
 
 		if (LNET_NIDNET(ni->ni_nid) == net)
@@ -201,7 +201,7 @@ lnet_parse_networks(struct list_head *nilist, char *networks)
 
 	the_lnet.ln_network_tokens = tokens;
 	the_lnet.ln_network_tokens_nob = tokensize;
-	memcpy (tokens, networks, tokensize);
+	memcpy(tokens, networks, tokensize);
 	str = tmp = tokens;
 
 	/* Add in the loopback network */
@@ -366,7 +366,7 @@ lnet_parse_networks(struct list_head *nilist, char *networks)
 }
 
 lnet_text_buf_t *
-lnet_new_text_buf (int str_len)
+lnet_new_text_buf(int str_len)
 {
 	lnet_text_buf_t *ltb;
 	int	      nob;
@@ -395,7 +395,7 @@ lnet_new_text_buf (int str_len)
 }
 
 void
-lnet_free_text_buf (lnet_text_buf_t *ltb)
+lnet_free_text_buf(lnet_text_buf_t *ltb)
 {
 	lnet_tbnob -= ltb->ltb_size;
 	LIBCFS_FREE(ltb, ltb->ltb_size);
@@ -420,7 +420,7 @@ lnet_print_text_bufs(struct list_head *tbs)
 	struct list_head	*tmp;
 	lnet_text_buf_t   *ltb;
 
-	list_for_each (tmp, tbs) {
+	list_for_each(tmp, tbs) {
 		ltb = list_entry(tmp, lnet_text_buf_t, ltb_list);
 
 		CDEBUG(D_WARNING, "%s\n", ltb->ltb_text);
@@ -430,7 +430,7 @@ lnet_print_text_bufs(struct list_head *tbs)
 }
 
 int
-lnet_str2tbs_sep (struct list_head *tbs, char *str)
+lnet_str2tbs_sep(struct list_head *tbs, char *str)
 {
 	struct list_head	pending;
 	char	     *sep;
@@ -488,7 +488,7 @@ lnet_str2tbs_sep (struct list_head *tbs, char *str)
 }
 
 int
-lnet_expand1tb (struct list_head *list,
+lnet_expand1tb(struct list_head *list,
 	       char *str, char *sep1, char *sep2,
 	       char *item, int itemlen)
 {
@@ -496,8 +496,8 @@ lnet_expand1tb (struct list_head *list,
 	int	      len2 = strlen(sep2 + 1);
 	lnet_text_buf_t *ltb;
 
-	LASSERT (*sep1 == '[');
-	LASSERT (*sep2 == ']');
+	LASSERT(*sep1 == '[');
+	LASSERT(*sep2 == ']');
 
 	ltb = lnet_new_text_buf(len1 + itemlen + len2);
 	if (ltb == NULL)
@@ -513,7 +513,7 @@ lnet_expand1tb (struct list_head *list,
 }
 
 int
-lnet_str2tbs_expand (struct list_head *tbs, char *str)
+lnet_str2tbs_expand(struct list_head *tbs, char *str)
 {
 	char	      num[16];
 	struct list_head	pending;
@@ -593,7 +593,7 @@ lnet_str2tbs_expand (struct list_head *tbs, char *str)
 }
 
 int
-lnet_parse_hops (char *str, unsigned int *hops)
+lnet_parse_hops(char *str, unsigned int *hops)
 {
 	int     len = strlen(str);
 	int     nob = len;
@@ -605,7 +605,7 @@ lnet_parse_hops (char *str, unsigned int *hops)
 
 
 int
-lnet_parse_route (char *str, int *im_a_router)
+lnet_parse_route(char *str, int *im_a_router)
 {
 	/* static scratch buffer OK (single threaded) */
 	static char       cmd[LNET_SINGLE_TEXTBUF_NOB];
@@ -702,25 +702,25 @@ lnet_parse_route (char *str, int *im_a_router)
 	if (!got_hops)
 		hops = 1;
 
-	LASSERT (!list_empty(&nets));
-	LASSERT (!list_empty(&gateways));
+	LASSERT(!list_empty(&nets));
+	LASSERT(!list_empty(&gateways));
 
-	list_for_each (tmp1, &nets) {
+	list_for_each(tmp1, &nets) {
 		ltb = list_entry(tmp1, lnet_text_buf_t, ltb_list);
 		net = libcfs_str2net(ltb->ltb_text);
-		LASSERT (net != LNET_NIDNET(LNET_NID_ANY));
+		LASSERT(net != LNET_NIDNET(LNET_NID_ANY));
 
-		list_for_each (tmp2, &gateways) {
+		list_for_each(tmp2, &gateways) {
 			ltb = list_entry(tmp2, lnet_text_buf_t, ltb_list);
 			nid = libcfs_str2nid(ltb->ltb_text);
-			LASSERT (nid != LNET_NID_ANY);
+			LASSERT(nid != LNET_NID_ANY);
 
 			if (lnet_islocalnid(nid)) {
 				*im_a_router = 1;
 				continue;
 			}
 
-			rc = lnet_add_route (net, hops, nid);
+			rc = lnet_add_route(net, hops, nid);
 			if (rc != 0) {
 				CERROR("Can't create route "
 				       "to %s via %s\n",
@@ -763,7 +763,7 @@ lnet_parse_route_tbs(struct list_head *tbs, int *im_a_router)
 }
 
 int
-lnet_parse_routes (char *routes, int *im_a_router)
+lnet_parse_routes(char *routes, int *im_a_router)
 {
 	struct list_head	tbs;
 	int	       rc = 0;
@@ -779,14 +779,14 @@ lnet_parse_routes (char *routes, int *im_a_router)
 		rc = lnet_parse_route_tbs(&tbs, im_a_router);
 	}
 
-	LASSERT (lnet_tbnob == 0);
+	LASSERT(lnet_tbnob == 0);
 	return rc;
 }
 
 int
 lnet_match_network_token(char *token, int len, __u32 *ipaddrs, int nip)
 {
-	LIST_HEAD	(list);
+	LIST_HEAD(list);
 	int		rc;
 	int		i;
 
@@ -815,7 +815,7 @@ lnet_match_network_tokens(char *net_entry, __u32 *ipaddrs, int nip)
 	char *token;
 	int   rc;
 
-	LASSERT (strlen(net_entry) < sizeof(tokens));
+	LASSERT(strlen(net_entry) < sizeof(tokens));
 
 	/* work on a copy of the string */
 	strcpy(tokens, net_entry);
@@ -889,8 +889,8 @@ lnet_splitnets(char *source, struct list_head *nets)
 	char	     *bracket;
 	__u32	     net;
 
-	LASSERT (!list_empty(nets));
-	LASSERT (nets->next == nets->prev);     /* single entry */
+	LASSERT(!list_empty(nets));
+	LASSERT(nets->next == nets->prev);     /* single entry */
 
 	tb = list_entry(nets->next, lnet_text_buf_t, ltb_list);
 
@@ -957,7 +957,7 @@ lnet_splitnets(char *source, struct list_head *nets)
 }
 
 int
-lnet_match_networks (char **networksp, char *ip2nets, __u32 *ipaddrs, int nip)
+lnet_match_networks(char **networksp, char *ip2nets, __u32 *ipaddrs, int nip)
 {
 	static char	networks[LNET_SINGLE_TEXTBUF_NOB];
 	static char	source[LNET_SINGLE_TEXTBUF_NOB];
@@ -979,7 +979,7 @@ lnet_match_networks (char **networksp, char *ip2nets, __u32 *ipaddrs, int nip)
 	INIT_LIST_HEAD(&raw_entries);
 	if (lnet_str2tbs_sep(&raw_entries, ip2nets) < 0) {
 		CERROR("Error parsing ip2nets\n");
-		LASSERT (lnet_tbnob == 0);
+		LASSERT(lnet_tbnob == 0);
 		return -EINVAL;
 	}
 
@@ -1017,16 +1017,16 @@ lnet_match_networks (char **networksp, char *ip2nets, __u32 *ipaddrs, int nip)
 			break;
 
 		dup = 0;
-		list_for_each (t, &current_nets) {
+		list_for_each(t, &current_nets) {
 			tb = list_entry(t, lnet_text_buf_t, ltb_list);
 			net1 = lnet_netspec2net(tb->ltb_text);
-			LASSERT (net1 != LNET_NIDNET(LNET_NID_ANY));
+			LASSERT(net1 != LNET_NIDNET(LNET_NID_ANY));
 
 			list_for_each(t2, &matched_nets) {
 				tb2 = list_entry(t2, lnet_text_buf_t,
 						     ltb_list);
 				net2 = lnet_netspec2net(tb2->ltb_text);
-				LASSERT (net2 != LNET_NIDNET(LNET_NID_ANY));
+				LASSERT(net2 != LNET_NIDNET(LNET_NID_ANY));
 
 				if (net1 == net2) {
 					dup = 1;
@@ -1067,7 +1067,7 @@ lnet_match_networks (char **networksp, char *ip2nets, __u32 *ipaddrs, int nip)
 	lnet_free_text_bufs(&raw_entries);
 	lnet_free_text_bufs(&matched_nets);
 	lnet_free_text_bufs(&current_nets);
-	LASSERT (lnet_tbnob == 0);
+	LASSERT(lnet_tbnob == 0);
 
 	if (rc < 0)
 		return rc;
@@ -1083,7 +1083,7 @@ lnet_ipaddr_free_enumeration(__u32 *ipaddrs, int nip)
 }
 
 int
-lnet_ipaddr_enumerate (__u32 **ipaddrsp)
+lnet_ipaddr_enumerate(__u32 **ipaddrsp)
 {
 	int	up;
 	__u32      netmask;
@@ -1149,7 +1149,7 @@ lnet_ipaddr_enumerate (__u32 **ipaddrsp)
 }
 
 int
-lnet_parse_ip2nets (char **networksp, char *ip2nets)
+lnet_parse_ip2nets(char **networksp, char *ip2nets)
 {
 	__u32     *ipaddrs;
 	int	nip = lnet_ipaddr_enumerate(&ipaddrs);
@@ -1185,7 +1185,7 @@ lnet_parse_ip2nets (char **networksp, char *ip2nets)
 }
 
 int
-lnet_set_ip_niaddr (lnet_ni_t *ni)
+lnet_set_ip_niaddr(lnet_ni_t *ni)
 {
 	__u32  net = LNET_NIDNET(ni->ni_nid);
 	char **names;
@@ -1201,7 +1201,7 @@ lnet_set_ip_niaddr (lnet_ni_t *ni)
 
 	if (ni->ni_interfaces[0] != NULL) {
 
-		CLASSERT (LNET_MAX_INTERFACES > 1);
+		CLASSERT(LNET_MAX_INTERFACES > 1);
 
 		if (ni->ni_interfaces[1] != NULL) {
 			CERROR("Net %s doesn't support multiple interfaces\n",
-- 
cgit 


From e46b3a0bd5d6ffaac2da893f0e71dc284bf6dcc8 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sat, 26 Oct 2013 00:22:54 +0530
Subject: Staging; lustre: Fix quoted string split across lines

This patch fixes the following checkpatch.pl issues in
lnet/lnet/config.c:
WARNING: quoted string split across lines

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/lnet/config.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/lustre/lnet/lnet/config.c b/drivers/staging/lustre/lnet/lnet/config.c
index 3307749a354d..6328a0e2eb2a 100644
--- a/drivers/staging/lustre/lnet/lnet/config.c
+++ b/drivers/staging/lustre/lnet/lnet/config.c
@@ -188,8 +188,8 @@ lnet_parse_networks(struct list_head *nilist, char *networks)
 
 	if (strlen(networks) > LNET_SINGLE_TEXTBUF_NOB) {
 		/* _WAY_ conservative */
-		LCONSOLE_ERROR_MSG(0x112, "Can't parse networks: string too "
-				   "long\n");
+		LCONSOLE_ERROR_MSG(0x112,
+				   "Can't parse networks: string too long\n");
 		return -EINVAL;
 	}
 
@@ -255,8 +255,8 @@ lnet_parse_networks(struct list_head *nilist, char *networks)
 			net = libcfs_str2net(cfs_trimwhite(str));
 
 			if (net == LNET_NIDNET(LNET_NID_ANY)) {
-				LCONSOLE_ERROR_MSG(0x113, "Unrecognised network"
-						   " type\n");
+				LCONSOLE_ERROR_MSG(0x113,
+						   "Unrecognised network type\n");
 				tmp = str;
 				goto failed_syntax;
 			}
@@ -313,8 +313,8 @@ lnet_parse_networks(struct list_head *nilist, char *networks)
 			}
 
 			if (niface == LNET_MAX_INTERFACES) {
-				LCONSOLE_ERROR_MSG(0x115, "Too many interfaces "
-						   "for net %s\n",
+				LCONSOLE_ERROR_MSG(0x115,
+						   "Too many interfaces for net %s\n",
 						   libcfs_net2str(net));
 				goto failed;
 			}
@@ -722,8 +722,7 @@ lnet_parse_route(char *str, int *im_a_router)
 
 			rc = lnet_add_route(net, hops, nid);
 			if (rc != 0) {
-				CERROR("Can't create route "
-				       "to %s via %s\n",
+				CERROR("Can't create route to %s via %s\n",
 				       libcfs_net2str(net),
 				       libcfs_nid2str(nid));
 				goto out;
@@ -1156,14 +1155,15 @@ lnet_parse_ip2nets(char **networksp, char *ip2nets)
 	int	rc;
 
 	if (nip < 0) {
-		LCONSOLE_ERROR_MSG(0x117, "Error %d enumerating local IP "
-				   "interfaces for ip2nets to match\n", nip);
+		LCONSOLE_ERROR_MSG(0x117,
+				   "Error %d enumerating local IP interfaces for ip2nets to match\n",
+				   nip);
 		return nip;
 	}
 
 	if (nip == 0) {
-		LCONSOLE_ERROR_MSG(0x118, "No local IP interfaces "
-				   "for ip2nets to match\n");
+		LCONSOLE_ERROR_MSG(0x118,
+				   "No local IP interfaces for ip2nets to match\n");
 		return -ENOENT;
 	}
 
@@ -1176,8 +1176,8 @@ lnet_parse_ip2nets(char **networksp, char *ip2nets)
 	}
 
 	if (rc == 0) {
-		LCONSOLE_ERROR_MSG(0x11a, "ip2nets does not match "
-				   "any local IP interfaces\n");
+		LCONSOLE_ERROR_MSG(0x11a,
+				   "ip2nets does not match any local IP interfaces\n");
 		return -ENOENT;
 	}
 
-- 
cgit 


From ad0a75b4b74ae7a676b0d5267d5997a20206d791 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sat, 26 Oct 2013 00:24:03 +0530
Subject: Staging: lustre: Fix initialisation of statics to NULL or 0

This patch fixes the following checkpatch.pl error in
lnet/lnet/config.c:
ERROR: do not initialise statics to 0 or NULL

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/lnet/config.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lnet/lnet/config.c b/drivers/staging/lustre/lnet/lnet/config.c
index 6328a0e2eb2a..de323f779db8 100644
--- a/drivers/staging/lustre/lnet/lnet/config.c
+++ b/drivers/staging/lustre/lnet/lnet/config.c
@@ -43,7 +43,7 @@ typedef struct {			    /* tmp struct for parsing routes */
 	char	       ltb_text[0];     /* text buffer */
 } lnet_text_buf_t;
 
-static int lnet_tbnob = 0;			/* track text buf allocation */
+static int lnet_tbnob;			/* track text buf allocation */
 #define LNET_MAX_TEXTBUF_NOB     (64<<10)	/* bound allocation */
 #define LNET_SINGLE_TEXTBUF_NOB  (4<<10)
 
-- 
cgit 


From 490f4dbc31e751fb7f803ab50c2dad86b757284b Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sat, 26 Oct 2013 16:19:42 +0530
Subject: Staging: lustre: Fix code indentation for conditional statements

This patch fixes the following checkpatch.pl warning in lustre/ldlm/interval_tree.c-
WARNING: suspect code indent for conditional statements

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/ldlm/interval_tree.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/lustre/lustre/ldlm/interval_tree.c b/drivers/staging/lustre/lustre/ldlm/interval_tree.c
index c65b13c800f9..ced33557a602 100644
--- a/drivers/staging/lustre/lustre/ldlm/interval_tree.c
+++ b/drivers/staging/lustre/lustre/ldlm/interval_tree.c
@@ -428,7 +428,7 @@ static void interval_erase_color(struct interval_node *node,
 				if (node_is_black_or_0(tmp->in_right)) {
 					struct interval_node *o_left;
 					if ((o_left = tmp->in_left))
-					     o_left->in_color = INTERVAL_BLACK;
+						o_left->in_color = INTERVAL_BLACK;
 					tmp->in_color = INTERVAL_RED;
 					__rotate_right(tmp, root);
 					tmp = parent->in_right;
@@ -436,7 +436,7 @@ static void interval_erase_color(struct interval_node *node,
 				tmp->in_color = parent->in_color;
 				parent->in_color = INTERVAL_BLACK;
 				if (tmp->in_right)
-				    tmp->in_right->in_color = INTERVAL_BLACK;
+					tmp->in_right->in_color = INTERVAL_BLACK;
 				__rotate_left(parent, root);
 				node = *root;
 				break;
@@ -458,7 +458,7 @@ static void interval_erase_color(struct interval_node *node,
 				if (node_is_black_or_0(tmp->in_left)) {
 					struct interval_node *o_right;
 					if ((o_right = tmp->in_right))
-					    o_right->in_color = INTERVAL_BLACK;
+						o_right->in_color = INTERVAL_BLACK;
 					tmp->in_color = INTERVAL_RED;
 					__rotate_left(tmp, root);
 					tmp = parent->in_left;
@@ -545,7 +545,7 @@ void interval_erase(struct interval_node *node,
 		update_maxhigh(child ? : parent, node->in_max_high);
 		update_maxhigh(node, old->in_max_high);
 		if (parent == old)
-			 parent = node;
+			parent = node;
 		goto color;
 	}
 	parent = node->in_parent;
-- 
cgit 


From c8b93908a2659c059af6a0da9e88c230380fb403 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sat, 26 Oct 2013 16:22:32 +0530
Subject: Staging: lustre: Fix no spaces at the start of the line

This patch fixes the following checkpatch.pl warning in lustre/ldlm/interval_tree.c-
WARNING: please, no spaces at the start of a line

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/ldlm/interval_tree.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/lustre/lustre/ldlm/interval_tree.c b/drivers/staging/lustre/lustre/ldlm/interval_tree.c
index ced33557a602..d0e0998819bc 100644
--- a/drivers/staging/lustre/lustre/ldlm/interval_tree.c
+++ b/drivers/staging/lustre/lustre/ldlm/interval_tree.c
@@ -125,11 +125,11 @@ static inline __u64 min_u64(__u64 x, __u64 y)
 
 #define interval_for_each(node, root)		   \
 for (node = interval_first(root); node != NULL;	 \
-     node = interval_next(node))
+	node = interval_next(node))
 
 #define interval_for_each_reverse(node, root)	   \
 for (node = interval_last(root); node != NULL;	  \
-     node = interval_prev(node))
+	node = interval_prev(node))
 
 static struct interval_node *interval_first(struct interval_node *node)
 {
-- 
cgit 


From 5bd7797f290d8c6268392a75e51a57c2cff3c50e Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sat, 26 Oct 2013 16:23:21 +0530
Subject: Staging: lustre: Fix space required after ','

This patch fixes the following checkpatch.pl warning in lustre/ldlm/interval_tree.c-
ERROR: space required after that ',' (ctx:VxV)

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/ldlm/interval_tree.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lustre/ldlm/interval_tree.c b/drivers/staging/lustre/lustre/ldlm/interval_tree.c
index d0e0998819bc..fbe76725d945 100644
--- a/drivers/staging/lustre/lustre/ldlm/interval_tree.c
+++ b/drivers/staging/lustre/lustre/ldlm/interval_tree.c
@@ -239,7 +239,7 @@ static void __rotate_change_maxhigh(struct interval_node *node,
 	left_max = node->in_left ? node->in_left->in_max_high : 0;
 	right_max = node->in_right ? node->in_right->in_max_high : 0;
 	node->in_max_high  = max_u64(interval_high(node),
-				     max_u64(left_max,right_max));
+				     max_u64(left_max, right_max));
 }
 
 /* The left rotation "pivots" around the link from node to node->right, and
-- 
cgit 


From 730ebc81c8b0f92cab2ea27fea82a464d6449132 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sat, 26 Oct 2013 16:24:02 +0530
Subject: Staging: lustre: Fix paranthesis not required around return

This patch fixes the following checkpatch.pl warning in lustre/ldlm/ldlm_extent.c-
ERROR: return is not a function, parentheses are not required

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/ldlm/ldlm_extent.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c b/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c
index 7e316637369b..ac5d66aa7f02 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_extent.c
@@ -144,7 +144,7 @@ struct ldlm_interval *ldlm_interval_detach(struct ldlm_lock *l)
 	l->l_tree_node = NULL;
 	list_del_init(&l->l_sl_policy);
 
-	return (list_empty(&n->li_group) ? n : NULL);
+	return list_empty(&n->li_group) ? n : NULL;
 }
 
 static inline int lock_mode_to_index(ldlm_mode_t mode)
-- 
cgit 


From 6756bb7cd99a344e956d5eb0f34ea1dcade5fe5b Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sat, 26 Oct 2013 16:24:43 +0530
Subject: Staging: lustre: Replace __FUNCTION__ with __func__

This patch fixes the following checkpatch.pl warning in lustre/ldlm/ldlm_request.c-
WARNING: __func__ should be used instead of gcc specific __FUNCTION__

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/ldlm/ldlm_request.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
index c3b6ad55d39b..dcc278403136 100644
--- a/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
+++ b/drivers/staging/lustre/lustre/ldlm/ldlm_request.c
@@ -1652,7 +1652,7 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns, struct list_head *ca
 
 		LDLM_LOCK_GET(lock);
 		spin_unlock(&ns->ns_lock);
-		lu_ref_add(&lock->l_reference, __FUNCTION__, current);
+		lu_ref_add(&lock->l_reference, __func__, current);
 
 		/* Pass the lock through the policy filter and see if it
 		 * should stay in LRU.
@@ -1670,7 +1670,7 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns, struct list_head *ca
 		result = pf(ns, lock, unused, added, count);
 		if (result == LDLM_POLICY_KEEP_LOCK) {
 			lu_ref_del(&lock->l_reference,
-				   __FUNCTION__, current);
+				   __func__, current);
 			LDLM_LOCK_RELEASE(lock);
 			spin_lock(&ns->ns_lock);
 			break;
@@ -1693,7 +1693,7 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns, struct list_head *ca
 			 * by itself, or the lock is no longer unused. */
 			unlock_res_and_lock(lock);
 			lu_ref_del(&lock->l_reference,
-				   __FUNCTION__, current);
+				   __func__, current);
 			LDLM_LOCK_RELEASE(lock);
 			spin_lock(&ns->ns_lock);
 			continue;
@@ -1724,7 +1724,7 @@ static int ldlm_prepare_lru_list(struct ldlm_namespace *ns, struct list_head *ca
 		LASSERT(list_empty(&lock->l_bl_ast));
 		list_add(&lock->l_bl_ast, cancels);
 		unlock_res_and_lock(lock);
-		lu_ref_del(&lock->l_reference, __FUNCTION__, current);
+		lu_ref_del(&lock->l_reference, __func__, current);
 		spin_lock(&ns->ns_lock);
 		added++;
 		unused--;
-- 
cgit 


From 3e85c3ecbc520751324a191d23bb94873ed01b10 Mon Sep 17 00:00:00 2001
From: Gwendal Grignou <gwendal@google.com>
Date: Fri, 25 Oct 2013 16:28:57 -0700
Subject: libata: Fix display of sata speed

6.0 Gbps link speed was not decoded properly:
speed was reported at 3.0 Gbps only.

Tested: On a machine where libata reports 6.0 Gbps in
        /var/log/messages:
    ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)

    Before:
    	cat /sys/class/ata_link/link1/sata_spd
    	3.0 Gbps
    After:
    	cat /sys/class/ata_link/link1/sata_spd
    	6.0 Gbps

Signed-off-by: Gwendal Grignou <gwendal@google.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
---
 drivers/ata/libata-transport.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/ata/libata-transport.c b/drivers/ata/libata-transport.c
index 150a917f0c3c..e37413228228 100644
--- a/drivers/ata/libata-transport.c
+++ b/drivers/ata/libata-transport.c
@@ -321,25 +321,25 @@ int ata_tport_add(struct device *parent,
 /*
  * ATA link attributes
  */
+static int noop(int x) { return x; }
 
-
-#define ata_link_show_linkspeed(field)					\
+#define ata_link_show_linkspeed(field, format)			        \
 static ssize_t								\
 show_ata_link_##field(struct device *dev,				\
 		      struct device_attribute *attr, char *buf)		\
 {									\
 	struct ata_link *link = transport_class_to_link(dev);		\
 									\
-	return sprintf(buf,"%s\n", sata_spd_string(fls(link->field)));	\
+	return sprintf(buf, "%s\n", sata_spd_string(format(link->field))); \
 }
 
-#define ata_link_linkspeed_attr(field)					\
-	ata_link_show_linkspeed(field)					\
+#define ata_link_linkspeed_attr(field, format)				\
+	ata_link_show_linkspeed(field, format)				\
 static DEVICE_ATTR(field, S_IRUGO, show_ata_link_##field, NULL)
 
-ata_link_linkspeed_attr(hw_sata_spd_limit);
-ata_link_linkspeed_attr(sata_spd_limit);
-ata_link_linkspeed_attr(sata_spd);
+ata_link_linkspeed_attr(hw_sata_spd_limit, fls);
+ata_link_linkspeed_attr(sata_spd_limit, fls);
+ata_link_linkspeed_attr(sata_spd, noop);
 
 
 static DECLARE_TRANSPORT_CLASS(ata_link_class,
-- 
cgit 


From 89dafa20f3daab5b3e0c13d0068a28e8e64e2102 Mon Sep 17 00:00:00 2001
From: xiangliang yu <yxlraid@gmail.com>
Date: Sun, 27 Oct 2013 08:03:04 -0400
Subject: ahci: disabled FBS prior to issuing software reset

Tested with Marvell 88se9125, attached with one port mulitplier(5 ports)
and one disk, we will get following boot log messages if using current
code:

  ata8: SATA link up 6.0 Gbps (SStatus 133 SControl 330)
  ata8.15: Port Multiplier 1.2, 0x1b4b:0x9715 r160, 5 ports, feat 0x1/0x1f
  ahci 0000:03:00.0: FBS is enabled
  ata8.00: hard resetting link
  ata8.00: SATA link down (SStatus 0 SControl 330)
  ata8.01: hard resetting link
  ata8.01: SATA link down (SStatus 0 SControl 330)
  ata8.02: hard resetting link
  ata8.02: SATA link down (SStatus 0 SControl 330)
  ata8.03: hard resetting link
  ata8.03: SATA link up 6.0 Gbps (SStatus 133 SControl 133)
  ata8.04: hard resetting link
  ata8.04: failed to resume link (SControl 133)
  ata8.04: failed to read SCR 0 (Emask=0x40)
  ata8.04: failed to read SCR 0 (Emask=0x40)
  ata8.04: failed to read SCR 1 (Emask=0x40)
  ata8.04: failed to read SCR 0 (Emask=0x40)
  ata8.03: native sectors (2) is smaller than sectors (976773168)
  ata8.03: ATA-8: ST3500413AS, JC4B, max UDMA/133
  ata8.03: 976773168 sectors, multi 0: LBA48 NCQ (depth 31/32)
  ata8.03: configured for UDMA/133
  ata8.04: failed to IDENTIFY (I/O error, err_mask=0x100)
  ata8.15: hard resetting link
  ata8.15: SATA link up 6.0 Gbps (SStatus 133 SControl 330)
  ata8.15: Port Multiplier vendor mismatch '0x1b4b' != '0x133'
  ata8.15: PMP revalidation failed (errno=-19)
  ata8.15: hard resetting link
  ata8.15: SATA link up 6.0 Gbps (SStatus 133 SControl 330)
  ata8.15: Port Multiplier vendor mismatch '0x1b4b' != '0x133'
  ata8.15: PMP revalidation failed (errno=-19)
  ata8.15: limiting SATA link speed to 3.0 Gbps
  ata8.15: hard resetting link
  ata8.15: SATA link up 3.0 Gbps (SStatus 123 SControl 320)
  ata8.15: Port Multiplier vendor mismatch '0x1b4b' != '0x133'
  ata8.15: PMP revalidation failed (errno=-19)
  ata8.15: failed to recover PMP after 5 tries, giving up
  ata8.15: Port Multiplier detaching
  ata8.03: disabled
  ata8.00: disabled
  ata8: EH complete

The reason is that current detection code doesn't follow AHCI spec:

First,the port multiplier detection process look like this:

	ahci_hardreset(link, class, deadline)
	if (class == ATA_DEV_PMP) {
		sata_pmp_attach(dev)	/* will enable FBS */
		sata_pmp_init_links(ap, nr_ports);
		ata_for_each_link(link, ap, EDGE) {
			sata_std_hardreset(link, class, deadline);
			if (link_is_online)	/* do soft reset */
				ahci_softreset(link, class, deadline);
		}
	}
But, according to chapter 9.3.9 in AHCI spec: Prior to issuing software
reset, software shall clear PxCMD.ST to '0' and then clear PxFBS.EN to
'0'.

The patch test ok with kernel 3.11.1.

tj: Patch white space contaminated, applied manually with trivial
    updates.

Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
---
 drivers/ata/libahci.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 7e2a1b38093e..6686dbec4440 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -1267,9 +1267,11 @@ int ahci_do_softreset(struct ata_link *link, unsigned int *class,
 {
 	struct ata_port *ap = link->ap;
 	struct ahci_host_priv *hpriv = ap->host->private_data;
+	struct ahci_port_priv *pp = ap->private_data;
 	const char *reason = NULL;
 	unsigned long now, msecs;
 	struct ata_taskfile tf;
+	bool fbs_disabled = false;
 	int rc;
 
 	DPRINTK("ENTER\n");
@@ -1279,6 +1281,16 @@ int ahci_do_softreset(struct ata_link *link, unsigned int *class,
 	if (rc && rc != -EOPNOTSUPP)
 		ata_link_warn(link, "failed to reset engine (errno=%d)\n", rc);
 
+	/*
+	 * According to AHCI-1.2 9.3.9: if FBS is enable, software shall
+	 * clear PxFBS.EN to '0' prior to issuing software reset to devices
+	 * that is attached to port multiplier.
+	 */
+	if (!ata_is_host_link(link) && pp->fbs_enabled) {
+		ahci_disable_fbs(ap);
+		fbs_disabled = true;
+	}
+
 	ata_tf_init(link->device, &tf);
 
 	/* issue the first D2H Register FIS */
@@ -1319,6 +1331,10 @@ int ahci_do_softreset(struct ata_link *link, unsigned int *class,
 	} else
 		*class = ahci_dev_classify(ap);
 
+	/* re-enable FBS if disabled before */
+	if (fbs_disabled)
+		ahci_enable_fbs(ap);
+
 	DPRINTK("EXIT, class=%u\n", *class);
 	return 0;
 
-- 
cgit 


From 225f1eaed00255bf25351d1749bfd23e0ff4ce7c Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 18 Oct 2013 11:44:09 +0300
Subject: sata_highbank: clear whole array in highbank_initialize_phys()

The original code used the wrong parameter to clear tx_atten[].  It
passed the number of elements instead of sizeof() the array to memset.

The other potential issue was that cphy_base[] wasn't cleared.  I'm not
sure if that was a real problem or not, but I have cleared it in my
patch.

Instead of using memset(), this patch uses empty initializers as a
cleanup.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 drivers/ata/sata_highbank.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/ata/sata_highbank.c b/drivers/ata/sata_highbank.c
index 7f5e5d96327f..ea3b3dc10f33 100644
--- a/drivers/ata/sata_highbank.c
+++ b/drivers/ata/sata_highbank.c
@@ -343,13 +343,11 @@ static int highbank_initialize_phys(struct device *dev, void __iomem *addr)
 {
 	struct device_node *sata_node = dev->of_node;
 	int phy_count = 0, phy, port = 0, i;
-	void __iomem *cphy_base[CPHY_PHY_COUNT];
-	struct device_node *phy_nodes[CPHY_PHY_COUNT];
-	u32 tx_atten[CPHY_PORT_COUNT];
+	void __iomem *cphy_base[CPHY_PHY_COUNT] = {};
+	struct device_node *phy_nodes[CPHY_PHY_COUNT] = {};
+	u32 tx_atten[CPHY_PORT_COUNT] = {};
 
 	memset(port_data, 0, sizeof(struct phy_lane_info) * CPHY_PORT_COUNT);
-	memset(phy_nodes, 0, sizeof(struct device_node*) * CPHY_PHY_COUNT);
-	memset(tx_atten, 0xff, CPHY_PORT_COUNT);
 
 	do {
 		u32 tmp;
-- 
cgit 


From 3915c3b5b10cd127198c1f9e2aefff7808500d92 Mon Sep 17 00:00:00 2001
From: Robert Hancock <hancockrwd@gmail.com>
Date: Mon, 21 Oct 2013 19:26:30 -0600
Subject: libata: Add some missing command descriptions

Add some missing command enumerations from the ATA-8 ACS-3 spec into
include/linux/ata.h, and add the corresponding human-readable command
descriptions in libata-eh.c.

Signed-off-by: Robert Hancock <hancockrwd@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 drivers/ata/libata-eh.c | 8 ++++++++
 include/linux/ata.h     | 7 +++++++
 2 files changed, 15 insertions(+)

diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index c69fcce505c0..ca88c48d08b8 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -2293,6 +2293,7 @@ const char *ata_get_cmd_descript(u8 command)
 		{ ATA_CMD_IDLE, 		"IDLE" },
 		{ ATA_CMD_EDD, 			"EXECUTE DEVICE DIAGNOSTIC" },
 		{ ATA_CMD_DOWNLOAD_MICRO,   	"DOWNLOAD MICROCODE" },
+		{ ATA_CMD_DOWNLOAD_MICRO_DMA,	"DOWNLOAD MICROCODE DMA" },
 		{ ATA_CMD_NOP,			"NOP" },
 		{ ATA_CMD_FLUSH, 		"FLUSH CACHE" },
 		{ ATA_CMD_FLUSH_EXT, 		"FLUSH CACHE EXT" },
@@ -2313,6 +2314,8 @@ const char *ata_get_cmd_descript(u8 command)
 		{ ATA_CMD_WRITE_QUEUED_FUA_EXT, "WRITE DMA QUEUED FUA EXT" },
 		{ ATA_CMD_FPDMA_READ,		"READ FPDMA QUEUED" },
 		{ ATA_CMD_FPDMA_WRITE,		"WRITE FPDMA QUEUED" },
+		{ ATA_CMD_FPDMA_SEND,		"SEND FPDMA QUEUED" },
+		{ ATA_CMD_FPDMA_RECV,		"RECEIVE FPDMA QUEUED" },
 		{ ATA_CMD_PIO_READ,		"READ SECTOR(S)" },
 		{ ATA_CMD_PIO_READ_EXT,		"READ SECTOR(S) EXT" },
 		{ ATA_CMD_PIO_WRITE,		"WRITE SECTOR(S)" },
@@ -2339,12 +2342,15 @@ const char *ata_get_cmd_descript(u8 command)
 		{ ATA_CMD_WRITE_LOG_EXT,	"WRITE LOG EXT" },
 		{ ATA_CMD_READ_LOG_DMA_EXT,	"READ LOG DMA EXT" },
 		{ ATA_CMD_WRITE_LOG_DMA_EXT, 	"WRITE LOG DMA EXT" },
+		{ ATA_CMD_TRUSTED_NONDATA,	"TRUSTED NON-DATA" },
 		{ ATA_CMD_TRUSTED_RCV,		"TRUSTED RECEIVE" },
 		{ ATA_CMD_TRUSTED_RCV_DMA, 	"TRUSTED RECEIVE DMA" },
 		{ ATA_CMD_TRUSTED_SND,		"TRUSTED SEND" },
 		{ ATA_CMD_TRUSTED_SND_DMA, 	"TRUSTED SEND DMA" },
 		{ ATA_CMD_PMP_READ,		"READ BUFFER" },
+		{ ATA_CMD_PMP_READ_DMA,		"READ BUFFER DMA" },
 		{ ATA_CMD_PMP_WRITE,		"WRITE BUFFER" },
+		{ ATA_CMD_PMP_WRITE_DMA,	"WRITE BUFFER DMA" },
 		{ ATA_CMD_CONF_OVERLAY,		"DEVICE CONFIGURATION OVERLAY" },
 		{ ATA_CMD_SEC_SET_PASS,		"SECURITY SET PASSWORD" },
 		{ ATA_CMD_SEC_UNLOCK,		"SECURITY UNLOCK" },
@@ -2363,6 +2369,8 @@ const char *ata_get_cmd_descript(u8 command)
 		{ ATA_CMD_CFA_TRANS_SECT,	"CFA TRANSLATE SECTOR" },
 		{ ATA_CMD_CFA_ERASE,		"CFA ERASE SECTORS" },
 		{ ATA_CMD_CFA_WRITE_MULT_NE, 	"CFA WRITE MULTIPLE WITHOUT ERASE" },
+		{ ATA_CMD_REQ_SENSE_DATA,	"REQUEST SENSE DATA EXT" },
+		{ ATA_CMD_SANITIZE_DEVICE,	"SANITIZE DEVICE" },
 		{ ATA_CMD_READ_LONG,		"READ LONG (with retries)" },
 		{ ATA_CMD_READ_LONG_ONCE,	"READ LONG (without retries)" },
 		{ ATA_CMD_WRITE_LONG,		"WRITE LONG (with retries)" },
diff --git a/include/linux/ata.h b/include/linux/ata.h
index bf4c69ca76df..f2f4d8da97c0 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -219,6 +219,7 @@ enum {
 	ATA_CMD_IDLE		= 0xE3, /* place in idle power mode */
 	ATA_CMD_EDD		= 0x90,	/* execute device diagnostic */
 	ATA_CMD_DOWNLOAD_MICRO  = 0x92,
+	ATA_CMD_DOWNLOAD_MICRO_DMA = 0x93,
 	ATA_CMD_NOP		= 0x00,
 	ATA_CMD_FLUSH		= 0xE7,
 	ATA_CMD_FLUSH_EXT	= 0xEA,
@@ -268,12 +269,15 @@ enum {
 	ATA_CMD_WRITE_LOG_EXT	= 0x3F,
 	ATA_CMD_READ_LOG_DMA_EXT = 0x47,
 	ATA_CMD_WRITE_LOG_DMA_EXT = 0x57,
+	ATA_CMD_TRUSTED_NONDATA	= 0x5B,
 	ATA_CMD_TRUSTED_RCV	= 0x5C,
 	ATA_CMD_TRUSTED_RCV_DMA = 0x5D,
 	ATA_CMD_TRUSTED_SND	= 0x5E,
 	ATA_CMD_TRUSTED_SND_DMA = 0x5F,
 	ATA_CMD_PMP_READ	= 0xE4,
+	ATA_CMD_PMP_READ_DMA	= 0xE9,
 	ATA_CMD_PMP_WRITE	= 0xE8,
+	ATA_CMD_PMP_WRITE_DMA	= 0xEB,
 	ATA_CMD_CONF_OVERLAY	= 0xB1,
 	ATA_CMD_SEC_SET_PASS	= 0xF1,
 	ATA_CMD_SEC_UNLOCK	= 0xF2,
@@ -292,6 +296,9 @@ enum {
 	ATA_CMD_CFA_TRANS_SECT	= 0x87,
 	ATA_CMD_CFA_ERASE	= 0xC0,
 	ATA_CMD_CFA_WRITE_MULT_NE = 0xCD,
+	ATA_CMD_REQ_SENSE_DATA  = 0x0B,
+	ATA_CMD_SANITIZE_DEVICE = 0xB4,
+
 	/* marked obsolete in the ATA/ATAPI-7 spec */
 	ATA_CMD_RESTORE		= 0x10,
 
-- 
cgit 


From 84292b29475bc7bb6b04ae5360595bd816ca4efb Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 21 Oct 2013 13:25:36 +0200
Subject: percpu: remove this_cpu_xor() implementation

There is not a single user in the whole kernel.
Besides that this_cpu_xor() is broken anyway since it gets
translated to this_cpu_or() (see __pcpu_size_call() line).

So instead of fixing an unused definition just remove it.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 include/linux/percpu.h | 32 --------------------------------
 1 file changed, 32 deletions(-)

diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index cc88172c7d9a..fd6ffe459aae 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -375,22 +375,6 @@ do {									\
 # define this_cpu_or(pcp, val)		__pcpu_size_call(this_cpu_or_, (pcp), (val))
 #endif
 
-#ifndef this_cpu_xor
-# ifndef this_cpu_xor_1
-#  define this_cpu_xor_1(pcp, val)	_this_cpu_generic_to_op((pcp), (val), ^=)
-# endif
-# ifndef this_cpu_xor_2
-#  define this_cpu_xor_2(pcp, val)	_this_cpu_generic_to_op((pcp), (val), ^=)
-# endif
-# ifndef this_cpu_xor_4
-#  define this_cpu_xor_4(pcp, val)	_this_cpu_generic_to_op((pcp), (val), ^=)
-# endif
-# ifndef this_cpu_xor_8
-#  define this_cpu_xor_8(pcp, val)	_this_cpu_generic_to_op((pcp), (val), ^=)
-# endif
-# define this_cpu_xor(pcp, val)		__pcpu_size_call(this_cpu_or_, (pcp), (val))
-#endif
-
 #define _this_cpu_generic_add_return(pcp, val)				\
 ({									\
 	typeof(pcp) ret__;						\
@@ -629,22 +613,6 @@ do {									\
 # define __this_cpu_or(pcp, val)	__pcpu_size_call(__this_cpu_or_, (pcp), (val))
 #endif
 
-#ifndef __this_cpu_xor
-# ifndef __this_cpu_xor_1
-#  define __this_cpu_xor_1(pcp, val)	__this_cpu_generic_to_op((pcp), (val), ^=)
-# endif
-# ifndef __this_cpu_xor_2
-#  define __this_cpu_xor_2(pcp, val)	__this_cpu_generic_to_op((pcp), (val), ^=)
-# endif
-# ifndef __this_cpu_xor_4
-#  define __this_cpu_xor_4(pcp, val)	__this_cpu_generic_to_op((pcp), (val), ^=)
-# endif
-# ifndef __this_cpu_xor_8
-#  define __this_cpu_xor_8(pcp, val)	__this_cpu_generic_to_op((pcp), (val), ^=)
-# endif
-# define __this_cpu_xor(pcp, val)	__pcpu_size_call(__this_cpu_xor_, (pcp), (val))
-#endif
-
 #define __this_cpu_generic_add_return(pcp, val)				\
 ({									\
 	__this_cpu_add(pcp, val);					\
-- 
cgit 


From 90f2492cf9c84fd414ecfd2f40685fb5291a484e Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 21 Oct 2013 13:25:37 +0200
Subject: x86: remove this_cpu_xor() implementation

Remove the unused x86 implementation of this_cpu_xor().

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 arch/x86/include/asm/percpu.h | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h
index 0da5200ee79d..604e13dc353d 100644
--- a/arch/x86/include/asm/percpu.h
+++ b/arch/x86/include/asm/percpu.h
@@ -377,9 +377,6 @@ do {									\
 #define __this_cpu_or_1(pcp, val)	percpu_to_op("or", (pcp), val)
 #define __this_cpu_or_2(pcp, val)	percpu_to_op("or", (pcp), val)
 #define __this_cpu_or_4(pcp, val)	percpu_to_op("or", (pcp), val)
-#define __this_cpu_xor_1(pcp, val)	percpu_to_op("xor", (pcp), val)
-#define __this_cpu_xor_2(pcp, val)	percpu_to_op("xor", (pcp), val)
-#define __this_cpu_xor_4(pcp, val)	percpu_to_op("xor", (pcp), val)
 #define __this_cpu_xchg_1(pcp, val)	percpu_xchg_op(pcp, val)
 #define __this_cpu_xchg_2(pcp, val)	percpu_xchg_op(pcp, val)
 #define __this_cpu_xchg_4(pcp, val)	percpu_xchg_op(pcp, val)
@@ -399,9 +396,6 @@ do {									\
 #define this_cpu_or_1(pcp, val)		percpu_to_op("or", (pcp), val)
 #define this_cpu_or_2(pcp, val)		percpu_to_op("or", (pcp), val)
 #define this_cpu_or_4(pcp, val)		percpu_to_op("or", (pcp), val)
-#define this_cpu_xor_1(pcp, val)	percpu_to_op("xor", (pcp), val)
-#define this_cpu_xor_2(pcp, val)	percpu_to_op("xor", (pcp), val)
-#define this_cpu_xor_4(pcp, val)	percpu_to_op("xor", (pcp), val)
 #define this_cpu_xchg_1(pcp, nval)	percpu_xchg_op(pcp, nval)
 #define this_cpu_xchg_2(pcp, nval)	percpu_xchg_op(pcp, nval)
 #define this_cpu_xchg_4(pcp, nval)	percpu_xchg_op(pcp, nval)
@@ -446,7 +440,6 @@ do {									\
 #define __this_cpu_add_8(pcp, val)	percpu_add_op((pcp), val)
 #define __this_cpu_and_8(pcp, val)	percpu_to_op("and", (pcp), val)
 #define __this_cpu_or_8(pcp, val)	percpu_to_op("or", (pcp), val)
-#define __this_cpu_xor_8(pcp, val)	percpu_to_op("xor", (pcp), val)
 #define __this_cpu_add_return_8(pcp, val) percpu_add_return_op(pcp, val)
 #define __this_cpu_xchg_8(pcp, nval)	percpu_xchg_op(pcp, nval)
 #define __this_cpu_cmpxchg_8(pcp, oval, nval)	percpu_cmpxchg_op(pcp, oval, nval)
@@ -456,7 +449,6 @@ do {									\
 #define this_cpu_add_8(pcp, val)	percpu_add_op((pcp), val)
 #define this_cpu_and_8(pcp, val)	percpu_to_op("and", (pcp), val)
 #define this_cpu_or_8(pcp, val)		percpu_to_op("or", (pcp), val)
-#define this_cpu_xor_8(pcp, val)	percpu_to_op("xor", (pcp), val)
 #define this_cpu_add_return_8(pcp, val)	percpu_add_return_op(pcp, val)
 #define this_cpu_xchg_8(pcp, nval)	percpu_xchg_op(pcp, nval)
 #define this_cpu_cmpxchg_8(pcp, oval, nval)	percpu_cmpxchg_op(pcp, oval, nval)
-- 
cgit 


From a5b7151504de553b086f76082e348fdb8474ba12 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 21 Oct 2013 13:33:50 +0800
Subject: staging: sep: add missing misc_deregister() on error in
 sep_register_driver_with_fs()

Add the missing misc_deregister() before return from
sep_register_driver_with_fs() in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/sep/sep_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/sep/sep_main.c b/drivers/staging/sep/sep_main.c
index 11f5b2117457..5f8c0a8ecb9d 100644
--- a/drivers/staging/sep/sep_main.c
+++ b/drivers/staging/sep/sep_main.c
@@ -4075,6 +4075,7 @@ static int sep_register_driver_with_fs(struct sep_device *sep)
 	if (ret_val) {
 		dev_warn(&sep->pdev->dev, "sysfs attribute1 fails for SEP %x\n",
 			ret_val);
+		misc_deregister(&sep->miscdev_sep);
 		return ret_val;
 	}
 
-- 
cgit 


From 40c2f5512c8872593d23cca9fb2508938e781646 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Wed, 23 Oct 2013 21:29:22 +0300
Subject: Staging: ft1000: Fix Sparse Warning for Static Declarations in
 ft1000_hw.c

This patch fixes the Sparse Warning: "symbol 'ft1000_reset'
was not declared. Should it be static?" in ft1000_hw.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_hw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c b/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
index 9b8fed7b405b..c99ee7530aa2 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
@@ -854,7 +854,7 @@ int reg_ft1000_netdev(struct ft1000_usb *ft1000dev,
 	return 0;
 }
 
-int ft1000_reset(void *dev)
+static int ft1000_reset(void *dev)
 {
 	ft1000_reset_card(dev);
 	return 0;
-- 
cgit 


From bfb3af4ebcdec5d5cb83ed1de31d5b892ec926ea Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Wed, 23 Oct 2013 02:54:33 +0300
Subject: Staging: ft1000: Fix Sparse Warning for Static Declarations in boot.h

This patch fixes the Sparse Warning: "symbol 'bootimage'
was not declared. Should it be static?" in boot.h

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-pcmcia/boot.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/ft1000/ft1000-pcmcia/boot.h b/drivers/staging/ft1000/ft1000-pcmcia/boot.h
index 1fc4ac12e247..9dce54eae1cf 100644
--- a/drivers/staging/ft1000/ft1000-pcmcia/boot.h
+++ b/drivers/staging/ft1000/ft1000-pcmcia/boot.h
@@ -27,7 +27,7 @@
 #define _BOOTH_
 
 // Official bootloader
-unsigned char bootimage [] = {
+static unsigned char bootimage [] = {
 0x00,0x00,0x01,0x5E,0x00,0x00
 ,0x00,0x00,0x00,0x00,0x02,0xD7
 ,0x00,0x00,0x01,0x5E,0x46,0xB3
-- 
cgit 


From 7ff1b12bf69083296c21c5f367e81c3468b5bd53 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Thu, 24 Oct 2013 16:30:28 +0300
Subject: Staging: ft1000: remove unnecessary static function declarations in
 ft1000_hw.c

This patch removes unnecessary static function
declarations in ft1000_hw.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_hw.c | 433 +++++++++++++-------------
 1 file changed, 212 insertions(+), 221 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c b/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
index c99ee7530aa2..b8beddcd2f56 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
@@ -29,12 +29,7 @@
 
 //#define JDEBUG
 
-static int ft1000_reset(void *ft1000dev);
 static int ft1000_submit_rx_urb(struct ft1000_info *info);
-static int ft1000_start_xmit(struct sk_buff *skb, struct net_device *dev);
-static int ft1000_open (struct net_device *dev);
-static struct net_device_stats *ft1000_netdev_stats(struct net_device *dev);
-static int ft1000_chkcard (struct ft1000_usb *dev);
 
 static u8 tempbuffer[1600];
 
@@ -671,6 +666,211 @@ static int ft1000_reset_card(struct net_device *dev)
 	return TRUE;
 }
 
+//---------------------------------------------------------------------------
+// Function:    ft1000_usb_transmit_complete
+//
+// Parameters:  urb  - transmitted usb urb
+//
+//
+// Returns:     none
+//
+// Description: This is the callback function when a urb is transmitted
+//
+// Notes:
+//
+//---------------------------------------------------------------------------
+static void ft1000_usb_transmit_complete(struct urb *urb)
+{
+
+	struct ft1000_usb *ft1000dev = urb->context;
+
+	if (urb->status)
+		pr_err("%s: TX status %d\n", ft1000dev->net->name, urb->status);
+
+	netif_wake_queue(ft1000dev->net);
+}
+
+//---------------------------------------------------------------------------
+//
+// Function:   ft1000_copy_down_pkt
+// Description: This function will take an ethernet packet and convert it to
+//             a Flarion packet prior to sending it to the ASIC Downlink
+//             FIFO.
+// Input:
+//     dev    - device structure
+//     packet - address of ethernet packet
+//     len    - length of IP packet
+// Output:
+//     status - FAILURE
+//              SUCCESS
+//
+//---------------------------------------------------------------------------
+static int ft1000_copy_down_pkt(struct net_device *netdev, u8 * packet, u16 len)
+{
+	struct ft1000_info *pInfo = netdev_priv(netdev);
+	struct ft1000_usb *pFt1000Dev = pInfo->priv;
+
+	int count, ret;
+	u8 *t;
+	struct pseudo_hdr hdr;
+
+	if (!pInfo->CardReady) {
+		DEBUG("ft1000_copy_down_pkt::Card Not Ready\n");
+		return -ENODEV;
+	}
+
+	count = sizeof(struct pseudo_hdr) + len;
+	if (count > MAX_BUF_SIZE) {
+		DEBUG("Error:ft1000_copy_down_pkt:Message Size Overflow!\n");
+		DEBUG("size = %d\n", count);
+		return -EINVAL;
+	}
+
+	if (count % 4)
+		count = count + (4 - (count % 4));
+
+	memset(&hdr, 0, sizeof(struct pseudo_hdr));
+
+	hdr.length = ntohs(count);
+	hdr.source = 0x10;
+	hdr.destination = 0x20;
+	hdr.portdest = 0x20;
+	hdr.portsrc = 0x10;
+	hdr.sh_str_id = 0x91;
+	hdr.control = 0x00;
+
+	hdr.checksum = hdr.length ^ hdr.source ^ hdr.destination ^
+	    hdr.portdest ^ hdr.portsrc ^ hdr.sh_str_id ^ hdr.control;
+
+	memcpy(&pFt1000Dev->tx_buf[0], &hdr, sizeof(hdr));
+	memcpy(&(pFt1000Dev->tx_buf[sizeof(struct pseudo_hdr)]), packet, len);
+
+	netif_stop_queue(netdev);
+
+	usb_fill_bulk_urb(pFt1000Dev->tx_urb,
+			  pFt1000Dev->dev,
+			  usb_sndbulkpipe(pFt1000Dev->dev,
+					  pFt1000Dev->bulk_out_endpointAddr),
+			  pFt1000Dev->tx_buf, count,
+			  ft1000_usb_transmit_complete, (void *)pFt1000Dev);
+
+	t = (u8 *) pFt1000Dev->tx_urb->transfer_buffer;
+
+	ret = usb_submit_urb(pFt1000Dev->tx_urb, GFP_ATOMIC);
+
+	if (ret) {
+		DEBUG("ft1000 failed tx_urb %d\n", ret);
+		return ret;
+	} else {
+		pInfo->stats.tx_packets++;
+		pInfo->stats.tx_bytes += (len + 14);
+	}
+
+	return 0;
+}
+
+//---------------------------------------------------------------------------
+// Function:    ft1000_start_xmit
+//
+// Parameters:  skb - socket buffer to be sent
+//              dev - network device
+//
+//
+// Returns:     none
+//
+// Description: transmit a ethernet packet
+//
+// Notes:
+//
+//---------------------------------------------------------------------------
+static int ft1000_start_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct ft1000_info *pInfo = netdev_priv(dev);
+	struct ft1000_usb *pFt1000Dev = pInfo->priv;
+	u8 *pdata;
+	int maxlen, pipe;
+
+	if (skb == NULL) {
+		DEBUG("ft1000_hw: ft1000_start_xmit:skb == NULL!!!\n");
+		return NETDEV_TX_OK;
+	}
+
+	if (pFt1000Dev->status & FT1000_STATUS_CLOSING) {
+		DEBUG("network driver is closed, return\n");
+		goto err;
+	}
+
+	pipe =
+	    usb_sndbulkpipe(pFt1000Dev->dev, pFt1000Dev->bulk_out_endpointAddr);
+	maxlen = usb_maxpacket(pFt1000Dev->dev, pipe, usb_pipeout(pipe));
+
+	pdata = (u8 *) skb->data;
+
+	if (pInfo->mediastate == 0) {
+		/* Drop packet is mediastate is down */
+		DEBUG("ft1000_hw:ft1000_start_xmit:mediastate is down\n");
+		goto err;
+	}
+
+	if ((skb->len < ENET_HEADER_SIZE) || (skb->len > ENET_MAX_SIZE)) {
+		/* Drop packet which has invalid size */
+		DEBUG("ft1000_hw:ft1000_start_xmit:invalid ethernet length\n");
+		goto err;
+	}
+
+	ft1000_copy_down_pkt(dev, (pdata + ENET_HEADER_SIZE - 2),
+			     skb->len - ENET_HEADER_SIZE + 2);
+
+err:
+	dev_kfree_skb(skb);
+
+	return NETDEV_TX_OK;
+}
+
+//---------------------------------------------------------------------------
+// Function:    ft1000_open
+//
+// Parameters:
+//              dev - network device
+//
+//
+// Returns:     none
+//
+// Description: open the network driver
+//
+// Notes:
+//
+//---------------------------------------------------------------------------
+static int ft1000_open(struct net_device *dev)
+{
+	struct ft1000_info *pInfo = netdev_priv(dev);
+	struct ft1000_usb *pFt1000Dev = pInfo->priv;
+	struct timeval tv;
+
+	DEBUG("ft1000_open is called for card %d\n", pFt1000Dev->CardNumber);
+
+	pInfo->stats.rx_bytes = 0;
+	pInfo->stats.tx_bytes = 0;
+	pInfo->stats.rx_packets = 0;
+	pInfo->stats.tx_packets = 0;
+	do_gettimeofday(&tv);
+	pInfo->ConTm = tv.tv_sec;
+	pInfo->ProgConStat = 0;
+
+	netif_start_queue(dev);
+
+	netif_carrier_on(dev);
+
+	return ft1000_submit_rx_urb(pInfo);
+}
+
+static struct net_device_stats *ft1000_netdev_stats(struct net_device *dev)
+{
+	struct ft1000_info *info = netdev_priv(dev);
+
+	return &(info->stats);
+}
+
 static const struct net_device_ops ftnet_ops =
 {
 	.ndo_open = &ft1000_open,
@@ -679,7 +879,6 @@ static const struct net_device_ops ftnet_ops =
 	.ndo_get_stats = &ft1000_netdev_stats,
 };
 
-
 //---------------------------------------------------------------------------
 // Function:    init_ft1000_netdev
 //
@@ -694,6 +893,13 @@ static const struct net_device_ops ftnet_ops =
 // Notes:
 //
 //---------------------------------------------------------------------------
+
+static int ft1000_reset(void *dev)
+{
+	ft1000_reset_card(dev);
+	return 0;
+}
+
 int init_ft1000_netdev(struct ft1000_usb *ft1000dev)
 {
 	struct net_device *netdev;
@@ -854,175 +1060,6 @@ int reg_ft1000_netdev(struct ft1000_usb *ft1000dev,
 	return 0;
 }
 
-static int ft1000_reset(void *dev)
-{
-	ft1000_reset_card(dev);
-	return 0;
-}
-
-//---------------------------------------------------------------------------
-// Function:    ft1000_usb_transmit_complete
-//
-// Parameters:  urb  - transmitted usb urb
-//
-//
-// Returns:     none
-//
-// Description: This is the callback function when a urb is transmitted
-//
-// Notes:
-//
-//---------------------------------------------------------------------------
-static void ft1000_usb_transmit_complete(struct urb *urb)
-{
-
-	struct ft1000_usb *ft1000dev = urb->context;
-
-	if (urb->status)
-		pr_err("%s: TX status %d\n", ft1000dev->net->name, urb->status);
-
-	netif_wake_queue(ft1000dev->net);
-}
-
-//---------------------------------------------------------------------------
-//
-// Function:   ft1000_copy_down_pkt
-// Description: This function will take an ethernet packet and convert it to
-//             a Flarion packet prior to sending it to the ASIC Downlink
-//             FIFO.
-// Input:
-//     dev    - device structure
-//     packet - address of ethernet packet
-//     len    - length of IP packet
-// Output:
-//     status - FAILURE
-//              SUCCESS
-//
-//---------------------------------------------------------------------------
-static int ft1000_copy_down_pkt(struct net_device *netdev, u8 * packet, u16 len)
-{
-	struct ft1000_info *pInfo = netdev_priv(netdev);
-	struct ft1000_usb *pFt1000Dev = pInfo->priv;
-
-	int count, ret;
-	u8 *t;
-	struct pseudo_hdr hdr;
-
-	if (!pInfo->CardReady) {
-		DEBUG("ft1000_copy_down_pkt::Card Not Ready\n");
-		return -ENODEV;
-	}
-
-	count = sizeof(struct pseudo_hdr) + len;
-	if (count > MAX_BUF_SIZE) {
-		DEBUG("Error:ft1000_copy_down_pkt:Message Size Overflow!\n");
-		DEBUG("size = %d\n", count);
-		return -EINVAL;
-	}
-
-	if (count % 4)
-		count = count + (4 - (count % 4));
-
-	memset(&hdr, 0, sizeof(struct pseudo_hdr));
-
-	hdr.length = ntohs(count);
-	hdr.source = 0x10;
-	hdr.destination = 0x20;
-	hdr.portdest = 0x20;
-	hdr.portsrc = 0x10;
-	hdr.sh_str_id = 0x91;
-	hdr.control = 0x00;
-
-	hdr.checksum = hdr.length ^ hdr.source ^ hdr.destination ^
-	    hdr.portdest ^ hdr.portsrc ^ hdr.sh_str_id ^ hdr.control;
-
-	memcpy(&pFt1000Dev->tx_buf[0], &hdr, sizeof(hdr));
-	memcpy(&(pFt1000Dev->tx_buf[sizeof(struct pseudo_hdr)]), packet, len);
-
-	netif_stop_queue(netdev);
-
-	usb_fill_bulk_urb(pFt1000Dev->tx_urb,
-			  pFt1000Dev->dev,
-			  usb_sndbulkpipe(pFt1000Dev->dev,
-					  pFt1000Dev->bulk_out_endpointAddr),
-			  pFt1000Dev->tx_buf, count,
-			  ft1000_usb_transmit_complete, (void *)pFt1000Dev);
-
-	t = (u8 *) pFt1000Dev->tx_urb->transfer_buffer;
-
-	ret = usb_submit_urb(pFt1000Dev->tx_urb, GFP_ATOMIC);
-
-	if (ret) {
-		DEBUG("ft1000 failed tx_urb %d\n", ret);
-		return ret;
-	} else {
-		pInfo->stats.tx_packets++;
-		pInfo->stats.tx_bytes += (len + 14);
-	}
-
-	return 0;
-}
-
-
-//---------------------------------------------------------------------------
-// Function:    ft1000_start_xmit
-//
-// Parameters:  skb - socket buffer to be sent
-//              dev - network device
-//
-//
-// Returns:     none
-//
-// Description: transmit a ethernet packet
-//
-// Notes:
-//
-//---------------------------------------------------------------------------
-static int ft1000_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
-	struct ft1000_info *pInfo = netdev_priv(dev);
-	struct ft1000_usb *pFt1000Dev = pInfo->priv;
-	u8 *pdata;
-	int maxlen, pipe;
-
-	if (skb == NULL) {
-		DEBUG("ft1000_hw: ft1000_start_xmit:skb == NULL!!!\n");
-		return NETDEV_TX_OK;
-	}
-
-	if (pFt1000Dev->status & FT1000_STATUS_CLOSING) {
-		DEBUG("network driver is closed, return\n");
-		goto err;
-	}
-
-	pipe =
-	    usb_sndbulkpipe(pFt1000Dev->dev, pFt1000Dev->bulk_out_endpointAddr);
-	maxlen = usb_maxpacket(pFt1000Dev->dev, pipe, usb_pipeout(pipe));
-
-	pdata = (u8 *) skb->data;
-
-	if (pInfo->mediastate == 0) {
-		/* Drop packet is mediastate is down */
-		DEBUG("ft1000_hw:ft1000_start_xmit:mediastate is down\n");
-		goto err;
-	}
-
-	if ((skb->len < ENET_HEADER_SIZE) || (skb->len > ENET_MAX_SIZE)) {
-		/* Drop packet which has invalid size */
-		DEBUG("ft1000_hw:ft1000_start_xmit:invalid ethernet length\n");
-		goto err;
-	}
-
-	ft1000_copy_down_pkt(dev, (pdata + ENET_HEADER_SIZE - 2),
-			     skb->len - ENET_HEADER_SIZE + 2);
-
-err:
-	dev_kfree_skb(skb);
-
-	return NETDEV_TX_OK;
-}
-
-
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_copy_up_pkt
@@ -1159,44 +1196,6 @@ static int ft1000_submit_rx_urb(struct ft1000_info *info)
 	return 0;
 }
 
-
-//---------------------------------------------------------------------------
-// Function:    ft1000_open
-//
-// Parameters:
-//              dev - network device
-//
-//
-// Returns:     none
-//
-// Description: open the network driver
-//
-// Notes:
-//
-//---------------------------------------------------------------------------
-static int ft1000_open(struct net_device *dev)
-{
-	struct ft1000_info *pInfo = netdev_priv(dev);
-	struct ft1000_usb *pFt1000Dev = pInfo->priv;
-	struct timeval tv;
-
-	DEBUG("ft1000_open is called for card %d\n", pFt1000Dev->CardNumber);
-
-	pInfo->stats.rx_bytes = 0;
-	pInfo->stats.tx_bytes = 0;
-	pInfo->stats.rx_packets = 0;
-	pInfo->stats.tx_packets = 0;
-	do_gettimeofday(&tv);
-	pInfo->ConTm = tv.tv_sec;
-	pInfo->ProgConStat = 0;
-
-	netif_start_queue(dev);
-
-	netif_carrier_on(dev);
-
-	return ft1000_submit_rx_urb(pInfo);
-}
-
 //---------------------------------------------------------------------------
 // Function:    ft1000_close
 //
@@ -1228,14 +1227,6 @@ int ft1000_close(struct net_device *net)
 	return 0;
 }
 
-static struct net_device_stats *ft1000_netdev_stats(struct net_device *dev)
-{
-	struct ft1000_info *info = netdev_priv(dev);
-
-	return &(info->stats);
-}
-
-
 //---------------------------------------------------------------------------
 //
 // Function:   ft1000_chkcard
-- 
cgit 


From 5619d9772219e0dd34916709739c6b30d1f9f71c Mon Sep 17 00:00:00 2001
From: Archana kumari <archanakumari959@gmail.com>
Date: Thu, 24 Oct 2013 01:17:41 +0530
Subject: staging: media: lirc: Replaced printk macro with dev_info(dev,....)
 in lirc_imon.c

This patch replaces printk macro with dev_info(dev,....)
in lirc_imon.c

Signed-off-by: Archana kumari <archanakumari959@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/media/lirc/lirc_imon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/media/lirc/lirc_imon.c b/drivers/staging/media/lirc/lirc_imon.c
index 4afa7da11f37..ab2ae115b524 100644
--- a/drivers/staging/media/lirc/lirc_imon.c
+++ b/drivers/staging/media/lirc/lirc_imon.c
@@ -625,7 +625,7 @@ static void imon_incoming_packet(struct imon_context *context,
 	}
 
 	if (debug) {
-		printk(KERN_INFO "raw packet: ");
+		dev_info(dev, "raw packet: ");
 		for (i = 0; i < len; ++i)
 			printk("%02x ", buf[i]);
 		printk("\n");
-- 
cgit 


From 44ee8e801137e9035ec719070fd09ff8871166e2 Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Sun, 20 Oct 2013 22:56:45 +0530
Subject: staging: media: Use dev_err() instead of pr_err()

Use dev_err() instead of pr_err() in go7007-usb.c.

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/media/go7007/go7007-usb.c | 42 +++++++++++++++----------------
 1 file changed, 21 insertions(+), 21 deletions(-)

diff --git a/drivers/staging/media/go7007/go7007-usb.c b/drivers/staging/media/go7007/go7007-usb.c
index 6f756830c421..f7e815177784 100644
--- a/drivers/staging/media/go7007/go7007-usb.c
+++ b/drivers/staging/media/go7007/go7007-usb.c
@@ -677,7 +677,7 @@ static int go7007_usb_interface_reset(struct go7007 *go)
 	/* Wait for an interrupt to indicate successful hardware reset */
 	if (go7007_read_interrupt(go, &intr_val, &intr_data) < 0 ||
 			(intr_val & ~0x1) != 0x55aa) {
-		pr_err("unable to reset the USB interface\n");
+		dev_err(go->dev, "unable to reset the USB interface\n");
 		return -1;
 	}
 	return 0;
@@ -709,7 +709,7 @@ static int go7007_usb_ezusb_write_interrupt(struct go7007 *go,
 	if (r < 0)
 		goto write_int_error;
 	if (i == 100) {
-		pr_err("device is hung, status reg = 0x%04x\n", status_reg);
+		dev_err(go->dev, "device is hung, status reg = 0x%04x\n", status_reg);
 		return -1;
 	}
 	r = usb_control_msg(usb->usbdev, usb_sndctrlpipe(usb->usbdev, 0), 0x12,
@@ -725,7 +725,7 @@ static int go7007_usb_ezusb_write_interrupt(struct go7007 *go,
 	return 0;
 
 write_int_error:
-	pr_err("error in WriteInterrupt: %d\n", r);
+	dev_err(go->dev, "error in WriteInterrupt: %d\n", r);
 	return r;
 }
 
@@ -747,7 +747,7 @@ static int go7007_usb_onboard_write_interrupt(struct go7007 *go,
 			USB_TYPE_VENDOR | USB_RECIP_ENDPOINT, 0x55aa,
 			0xf0f0, go->usb_buf, 8, timeout);
 	if (r < 0) {
-		pr_err("error in WriteInterrupt: %d\n", r);
+		dev_err(go->dev, "error in WriteInterrupt: %d\n", r);
 		return r;
 	}
 	return 0;
@@ -762,13 +762,13 @@ static void go7007_usb_readinterrupt_complete(struct urb *urb)
 	if (status) {
 		if (status != -ESHUTDOWN &&
 				go->status != STATUS_SHUTDOWN) {
-			pr_err("error in read interrupt: %d\n", urb->status);
+			dev_err(go->dev, "error in read interrupt: %d\n", urb->status);
 		} else {
 			wake_up(&go->interrupt_waitq);
 			return;
 		}
 	} else if (urb->actual_length != urb->transfer_buffer_length) {
-		pr_err("short read in interrupt pipe!\n");
+		dev_err(go->dev, "short read in interrupt pipe!\n");
 	} else {
 		go->interrupt_available = 1;
 		go->interrupt_data = __le16_to_cpu(regs[0]);
@@ -787,7 +787,7 @@ static int go7007_usb_read_interrupt(struct go7007 *go)
 
 	r = usb_submit_urb(usb->intr_urb, GFP_KERNEL);
 	if (r < 0) {
-		pr_err("unable to submit interrupt urb: %d\n", r);
+		dev_err(go->dev, "unable to submit interrupt urb: %d\n", r);
 		return r;
 	}
 	return 0;
@@ -803,17 +803,17 @@ static void go7007_usb_read_video_pipe_complete(struct urb *urb)
 		return;
 	}
 	if (status) {
-		pr_err("error in video pipe: %d\n", status);
+		dev_err(go->dev, "error in video pipe: %d\n", status);
 		return;
 	}
 	if (urb->actual_length != urb->transfer_buffer_length) {
-		pr_err("short read in video pipe!\n");
+		dev_err(go->dev, "short read in video pipe!\n");
 		return;
 	}
 	go7007_parse_video_stream(go, urb->transfer_buffer, urb->actual_length);
 	r = usb_submit_urb(urb, GFP_ATOMIC);
 	if (r < 0)
-		pr_err("error in video pipe: %d\n", r);
+		dev_err(go->dev, "error in video pipe: %d\n", r);
 }
 
 static void go7007_usb_read_audio_pipe_complete(struct urb *urb)
@@ -824,19 +824,19 @@ static void go7007_usb_read_audio_pipe_complete(struct urb *urb)
 	if (!vb2_is_streaming(&go->vidq))
 		return;
 	if (status) {
-		pr_err("error in audio pipe: %d\n",
+		dev_err(go->dev, "error in audio pipe: %d\n",
 			status);
 		return;
 	}
 	if (urb->actual_length != urb->transfer_buffer_length) {
-		pr_err("short read in audio pipe!\n");
+		dev_err(go->dev, "short read in audio pipe!\n");
 		return;
 	}
 	if (go->audio_deliver != NULL)
 		go->audio_deliver(go, urb->transfer_buffer, urb->actual_length);
 	r = usb_submit_urb(urb, GFP_ATOMIC);
 	if (r < 0)
-		pr_err("error in audio pipe: %d\n", r);
+		dev_err(go->dev, "error in audio pipe: %d\n", r);
 }
 
 static int go7007_usb_stream_start(struct go7007 *go)
@@ -847,7 +847,7 @@ static int go7007_usb_stream_start(struct go7007 *go)
 	for (i = 0; i < 8; ++i) {
 		r = usb_submit_urb(usb->video_urbs[i], GFP_KERNEL);
 		if (r < 0) {
-			pr_err("error submitting video urb %d: %d\n", i, r);
+			dev_err(go->dev, "error submitting video urb %d: %d\n", i, r);
 			goto video_submit_failed;
 		}
 	}
@@ -857,7 +857,7 @@ static int go7007_usb_stream_start(struct go7007 *go)
 	for (i = 0; i < 8; ++i) {
 		r = usb_submit_urb(usb->audio_urbs[i], GFP_KERNEL);
 		if (r < 0) {
-			pr_err("error submitting audio urb %d: %d\n", i, r);
+			dev_err(go->dev, "error submitting audio urb %d: %d\n", i, r);
 			goto audio_submit_failed;
 		}
 	}
@@ -1099,7 +1099,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 		board = &board_px_tv402u;
 		break;
 	case GO7007_BOARDID_LIFEVIEW_LR192:
-		pr_err("The Lifeview TV Walker Ultra is not supported. Sorry!\n");
+		dev_err(go->dev, "The Lifeview TV Walker Ultra is not supported. Sorry!\n");
 		return -ENODEV;
 		name = "Lifeview TV Walker Ultra";
 		board = &board_lifeview_lr192;
@@ -1114,7 +1114,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 		board = &board_ads_usbav_709;
 		break;
 	default:
-		pr_err("unknown board ID %d!\n",
+		dev_err(go->dev, "unknown board ID %d!\n",
 				(unsigned int)id->driver_info);
 		return -ENODEV;
 	}
@@ -1173,7 +1173,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 		go->i2c_adapter.dev.parent = go->dev;
 		i2c_set_adapdata(&go->i2c_adapter, go);
 		if (i2c_add_adapter(&go->i2c_adapter) < 0) {
-			pr_err("error: i2c_add_adapter failed\n");
+			dev_err(go->dev, "error: i2c_add_adapter failed\n");
 			goto allocfail;
 		}
 		go->i2c_adapter_online = 1;
@@ -1225,7 +1225,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 		/* Board strapping indicates tuner model */
 		if (go7007_usb_vendor_request(go, 0x41, 0, 0, go->usb_buf, 3,
 					1) < 0) {
-			pr_err("GPIO read failed!\n");
+			dev_err(go->dev, "GPIO read failed!\n");
 			goto allocfail;
 		}
 		switch (go->usb_buf[0] >> 6) {
@@ -1256,7 +1256,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 		 * to the EZ-USB GPIO output pins */
 		if (go7007_usb_vendor_request(go, 0x40, 0x7f02, 0,
 					NULL, 0, 0) < 0) {
-			pr_err("GPIO write failed!\n");
+			dev_err(go->dev, "GPIO write failed!\n");
 			goto allocfail;
 		}
 	}
@@ -1265,7 +1265,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 	 * a USB1.1 port.  There will be silent corruption of the stream. */
 	if ((board->flags & GO7007_USB_EZUSB) &&
 			usbdev->speed != USB_SPEED_HIGH)
-		pr_err("*** WARNING ***  This device must be connected to a USB 2.0 port! Attempting to capture video through a USB 1.1 port will result in stream corruption, even at low bitrates!\n");
+		dev_err(go->dev, "*** WARNING ***  This device must be connected to a USB 2.0 port! Attempting to capture video through a USB 1.1 port will result in stream corruption, even at low bitrates!\n");
 
 	/* Allocate the URBs and buffers for receiving the video stream */
 	if (board->flags & GO7007_USB_EZUSB) {
-- 
cgit 


From a152e879e0de708779fa6bf831fe6aab772ee520 Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Sun, 20 Oct 2013 22:57:19 +0530
Subject: staging:media: Use dev_info() instead of pr_info()

Use dev_info instead of pr_info() in go7007-usb.c.

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/media/go7007/go7007-usb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/media/go7007/go7007-usb.c b/drivers/staging/media/go7007/go7007-usb.c
index f7e815177784..b09a00b24f26 100644
--- a/drivers/staging/media/go7007/go7007-usb.c
+++ b/drivers/staging/media/go7007/go7007-usb.c
@@ -1105,7 +1105,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 		board = &board_lifeview_lr192;
 		break;
 	case GO7007_BOARDID_SENSORAY_2250:
-		pr_info("Sensoray 2250 found\n");
+		dev_info(go->dev, "Sensoray 2250 found\n");
 		name = "Sensoray 2250/2251";
 		board = &board_sensoray_2250;
 		break;
-- 
cgit 


From b6ea5ef80aa7fd6f4b18ff2e4174930e8772e812 Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Sun, 20 Oct 2013 22:58:28 +0530
Subject: staging:media: Use dev_dbg() instead of pr_debug()

Use dev_dbg() instead of pr_debug() in go7007-usb.c.

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/media/go7007/go7007-usb.c | 22 ++++++++++------------
 1 file changed, 10 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/media/go7007/go7007-usb.c b/drivers/staging/media/go7007/go7007-usb.c
index b09a00b24f26..58684da45e6c 100644
--- a/drivers/staging/media/go7007/go7007-usb.c
+++ b/drivers/staging/media/go7007/go7007-usb.c
@@ -15,8 +15,6 @@
  * Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
  */
 
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -663,7 +661,7 @@ static int go7007_usb_interface_reset(struct go7007 *go)
 
 	if (usb->board->flags & GO7007_USB_EZUSB) {
 		/* Reset buffer in EZ-USB */
-		pr_debug("resetting EZ-USB buffers\n");
+		dev_dbg(go->dev, "resetting EZ-USB buffers\n");
 		if (go7007_usb_vendor_request(go, 0x10, 0, 0, NULL, 0, 0) < 0 ||
 		    go7007_usb_vendor_request(go, 0x10, 0, 0, NULL, 0, 0) < 0)
 			return -1;
@@ -691,7 +689,7 @@ static int go7007_usb_ezusb_write_interrupt(struct go7007 *go,
 	u16 status_reg = 0;
 	int timeout = 500;
 
-	pr_debug("WriteInterrupt: %04x %04x\n", addr, data);
+	dev_dbg(go->dev, "WriteInterrupt: %04x %04x\n", addr, data);
 
 	for (i = 0; i < 100; ++i) {
 		r = usb_control_msg(usb->usbdev,
@@ -736,7 +734,7 @@ static int go7007_usb_onboard_write_interrupt(struct go7007 *go,
 	int r;
 	int timeout = 500;
 
-	pr_debug("WriteInterrupt: %04x %04x\n", addr, data);
+	dev_dbg(go->dev, "WriteInterrupt: %04x %04x\n", addr, data);
 
 	go->usb_buf[0] = data & 0xff;
 	go->usb_buf[1] = data >> 8;
@@ -773,7 +771,7 @@ static void go7007_usb_readinterrupt_complete(struct urb *urb)
 		go->interrupt_available = 1;
 		go->interrupt_data = __le16_to_cpu(regs[0]);
 		go->interrupt_value = __le16_to_cpu(regs[1]);
-		pr_debug("ReadInterrupt: %04x %04x\n",
+		dev_dbg(go->dev, "ReadInterrupt: %04x %04x\n",
 				go->interrupt_value, go->interrupt_data);
 	}
 
@@ -893,7 +891,7 @@ static int go7007_usb_send_firmware(struct go7007 *go, u8 *data, int len)
 	int transferred, pipe;
 	int timeout = 500;
 
-	pr_debug("DownloadBuffer sending %d bytes\n", len);
+	dev_dbg(go->dev, "DownloadBuffer sending %d bytes\n", len);
 
 	if (usb->board->flags & GO7007_USB_EZUSB)
 		pipe = usb_sndbulkpipe(usb->usbdev, 2);
@@ -979,7 +977,7 @@ static int go7007_usb_i2c_master_xfer(struct i2c_adapter *adapter,
 				!(msgs[i].flags & I2C_M_RD) &&
 				(msgs[i + 1].flags & I2C_M_RD)) {
 #ifdef GO7007_I2C_DEBUG
-			pr_debug("i2c write/read %d/%d bytes on %02x\n",
+			dev_dbg(go->dev, "i2c write/read %d/%d bytes on %02x\n",
 				msgs[i].len, msgs[i + 1].len, msgs[i].addr);
 #endif
 			buf[0] = 0x01;
@@ -990,7 +988,7 @@ static int go7007_usb_i2c_master_xfer(struct i2c_adapter *adapter,
 			buf[buf_len++] = msgs[++i].len;
 		} else if (msgs[i].flags & I2C_M_RD) {
 #ifdef GO7007_I2C_DEBUG
-			pr_debug("i2c read %d bytes on %02x\n",
+			dev_dbg(go->dev, "i2c read %d bytes on %02x\n",
 					msgs[i].len, msgs[i].addr);
 #endif
 			buf[0] = 0x01;
@@ -1000,7 +998,7 @@ static int go7007_usb_i2c_master_xfer(struct i2c_adapter *adapter,
 			buf_len = 4;
 		} else {
 #ifdef GO7007_I2C_DEBUG
-			pr_debug("i2c write %d bytes on %02x\n",
+			dev_dbg(go->dev, "i2c write %d bytes on %02x\n",
 					msgs[i].len, msgs[i].addr);
 #endif
 			buf[0] = 0x00;
@@ -1059,7 +1057,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 	char *name;
 	int video_pipe, i, v_urb_len;
 
-	pr_debug("probing new GO7007 USB board\n");
+	dev_dbg(go->dev, "probing new GO7007 USB board\n");
 
 	switch (id->driver_info) {
 	case GO7007_BOARDID_MATRIX_II:
@@ -1249,7 +1247,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 					sizeof(go->name));
 			break;
 		default:
-			pr_debug("unable to detect tuner type!\n");
+			dev_dbg(go->dev, "unable to detect tuner type!\n");
 			break;
 		}
 		/* Configure tuner mode selection inputs connected
-- 
cgit 


From 16fcfa17d52f9f9e4e2f02a5b078b078eb5eabf3 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sun, 27 Oct 2013 18:49:31 +0530
Subject: Staging: lustre: Fix no use of assignment in if condition

This patch fixes the following checkpatch.pl error in lustre/ldlm/interval_tree.c-
ERROR: do not use assignment in if condition

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/ldlm/interval_tree.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/lustre/lustre/ldlm/interval_tree.c b/drivers/staging/lustre/lustre/ldlm/interval_tree.c
index fbe76725d945..1de1d8eb9b41 100644
--- a/drivers/staging/lustre/lustre/ldlm/interval_tree.c
+++ b/drivers/staging/lustre/lustre/ldlm/interval_tree.c
@@ -427,7 +427,8 @@ static void interval_erase_color(struct interval_node *node,
 			} else {
 				if (node_is_black_or_0(tmp->in_right)) {
 					struct interval_node *o_left;
-					if ((o_left = tmp->in_left))
+					o_left = tmp->in_left;
+					if (o_left)
 						o_left->in_color = INTERVAL_BLACK;
 					tmp->in_color = INTERVAL_RED;
 					__rotate_right(tmp, root);
@@ -457,7 +458,8 @@ static void interval_erase_color(struct interval_node *node,
 			} else {
 				if (node_is_black_or_0(tmp->in_left)) {
 					struct interval_node *o_right;
-					if ((o_right = tmp->in_right))
+					o_right = tmp->in_right;
+					if (o_right)
 						o_right->in_color = INTERVAL_BLACK;
 					tmp->in_color = INTERVAL_RED;
 					__rotate_left(tmp, root);
-- 
cgit 


From 2467635ee3b6f50131caa1b80b2d116eaf5ce938 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Tue, 22 Oct 2013 20:00:22 +0100
Subject: staging: vt6656: call usb_device_reset before netdev registration

The USB reset occurs after netdev registration if network manager
calls device_open too fast causing USB fails in main_usb.c: device_init_registers.

Move the usb reset to before register_netdev.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/main_usb.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index 5e4a5d0988d7..aae228c533ef 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -723,14 +723,15 @@ vt6656_probe(struct usb_interface *intf, const struct usb_device_id *id)
 	usb_set_intfdata(intf, pDevice);
 	SET_NETDEV_DEV(netdev, &intf->dev);
 	memcpy(pDevice->dev->dev_addr, fake_mac, ETH_ALEN);
+
+	usb_device_reset(pDevice);
+
 	rc = register_netdev(netdev);
 	if (rc) {
 		printk(KERN_ERR DEVICE_NAME " Failed to register netdev\n");
 		goto err_netdev;
 	}
 
-	usb_device_reset(pDevice);
-
 	return 0;
 
 err_netdev:
-- 
cgit 


From 3cef1a2e8cd63ff1f45a5c4594bbdffddede001a Mon Sep 17 00:00:00 2001
From: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Date: Thu, 24 Oct 2013 00:20:11 +0530
Subject: staging: vt6656: fixed indentation and unnecessary space errors

Fixed the indentation errors and removed unnecessary space
warnings to comply with coding style

Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/datarate.c | 373 +++++++++++++++++++-------------------
 1 file changed, 185 insertions(+), 188 deletions(-)

diff --git a/drivers/staging/vt6656/datarate.c b/drivers/staging/vt6656/datarate.c
index 17fbc35ebcbf..22071984346e 100644
--- a/drivers/staging/vt6656/datarate.c
+++ b/drivers/staging/vt6656/datarate.c
@@ -44,9 +44,9 @@
 #include "rf.h"
 
 /* static int msglevel = MSG_LEVEL_DEBUG; */
-static int          msglevel                =MSG_LEVEL_INFO;
-const u8 acbyIERate[MAX_RATE] =
-{0x02, 0x04, 0x0B, 0x16, 0x0C, 0x12, 0x18, 0x24, 0x30, 0x48, 0x60, 0x6C};
+static int msglevel = MSG_LEVEL_INFO;
+const u8 acbyIERate[MAX_RATE] = {0x02, 0x04, 0x0B, 0x16, 0x0C, 0x12, 0x18,
+	0x24, 0x30, 0x48, 0x60, 0x6C};
 
 #define AUTORATE_TXOK_CNT       0x0400
 #define AUTORATE_TXFAIL_CNT     0x0064
@@ -56,13 +56,13 @@ void s_vResetCounter(PKnownNodeDB psNodeDBTable);
 
 void s_vResetCounter(PKnownNodeDB psNodeDBTable)
 {
-    u8            ii;
+	u8 ii;
 
-    /* clear statistics counter for auto_rate */
-    for (ii = 0; ii <= MAX_RATE; ii++) {
-        psNodeDBTable->uTxOk[ii] = 0;
-        psNodeDBTable->uTxFail[ii] = 0;
-    }
+	/* clear statistics counter for auto_rate */
+	for (ii = 0; ii <= MAX_RATE; ii++) {
+		psNodeDBTable->uTxOk[ii] = 0;
+		psNodeDBTable->uTxFail[ii] = 0;
+	}
 }
 
 /*+
@@ -97,21 +97,18 @@ void s_vResetCounter(PKnownNodeDB psNodeDBTable)
  * Return Value: RateIdx
  *
 -*/
-u16
-RATEwGetRateIdx(
-     u8 byRate
-    )
+u16 RATEwGetRateIdx(u8 byRate)
 {
-    u16    ii;
+	u16 ii;
 
-    /* erase BasicRate flag */
-    byRate = byRate & 0x7F;
+	/* erase BasicRate flag */
+	byRate = byRate & 0x7F;
 
-    for (ii = 0; ii < MAX_RATE; ii ++) {
-        if (acbyIERate[ii] == byRate)
-            return ii;
-    }
-    return 0;
+	for (ii = 0; ii < MAX_RATE; ii++) {
+		if (acbyIERate[ii] == byRate)
+			return ii;
+	}
+	return 0;
 }
 
 /*+
@@ -139,7 +136,7 @@ void RATEvParseMaxRate(struct vnt_private *pDevice,
 	int bUpdateBasicRate, u16 *pwMaxBasicRate, u16 *pwMaxSuppRate,
 	u16 *pwSuppRate, u8 *pbyTopCCKRate, u8 *pbyTopOFDMRate)
 {
-	int  ii;
+	int ii;
 	u8 byHighSuppRate = 0, byRate = 0;
 	u16 wOldBasicRate = pDevice->wBasicRate;
 	u32 uRateLen;
@@ -147,83 +144,88 @@ void RATEvParseMaxRate(struct vnt_private *pDevice,
 	if (pItemRates == NULL)
 		return;
 
-    *pwSuppRate = 0;
-    uRateLen = pItemRates->len;
-
-    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ParseMaxRate Len: %d\n", uRateLen);
-    if (pDevice->byBBType != BB_TYPE_11B) {
-        if (uRateLen > WLAN_RATES_MAXLEN)
-            uRateLen = WLAN_RATES_MAXLEN;
-    } else {
-        if (uRateLen > WLAN_RATES_MAXLEN_11B)
-            uRateLen = WLAN_RATES_MAXLEN_11B;
-    }
-
-    for (ii = 0; ii < uRateLen; ii++) {
-    	byRate = (u8)(pItemRates->abyRates[ii]);
-        if (WLAN_MGMT_IS_BASICRATE(byRate) &&
-            (bUpdateBasicRate == true))  {
-	  /*
-	   * add to basic rate set, update pDevice->byTopCCKBasicRate and
-	   * pDevice->byTopOFDMBasicRate
-	   */
-		CARDbAddBasicRate((void *)pDevice, RATEwGetRateIdx(byRate));
-            DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ParseMaxRate AddBasicRate: %d\n", RATEwGetRateIdx(byRate));
-        }
-        byRate = (u8)(pItemRates->abyRates[ii]&0x7F);
-        if (byHighSuppRate == 0)
-            byHighSuppRate = byRate;
-        if (byRate > byHighSuppRate)
-            byHighSuppRate = byRate;
-        *pwSuppRate |= (1<<RATEwGetRateIdx(byRate));
-    }
-    if ((pItemExtRates != NULL) && (pItemExtRates->byElementID == WLAN_EID_EXTSUPP_RATES) &&
-        (pDevice->byBBType != BB_TYPE_11B)) {
-
-	unsigned int uExtRateLen = pItemExtRates->len;
-
-        if (uExtRateLen > WLAN_RATES_MAXLEN)
-            uExtRateLen = WLAN_RATES_MAXLEN;
-
-        for (ii = 0; ii < uExtRateLen ; ii++) {
-            byRate = (u8)(pItemExtRates->abyRates[ii]);
-	    /* select highest basic rate */
-            if (WLAN_MGMT_IS_BASICRATE(pItemExtRates->abyRates[ii])) {
-	      /*
-	       * add to basic rate set, update pDevice->byTopCCKBasicRate and
-	       * pDevice->byTopOFDMBasicRate
-	       */
-		    CARDbAddBasicRate((void *)pDevice, RATEwGetRateIdx(byRate));
-                DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ParseMaxRate AddBasicRate: %d\n", RATEwGetRateIdx(byRate));
-            }
-            byRate = (u8)(pItemExtRates->abyRates[ii]&0x7F);
-            if (byHighSuppRate == 0)
-                byHighSuppRate = byRate;
-            if (byRate > byHighSuppRate)
-                byHighSuppRate = byRate;
-            *pwSuppRate |= (1<<RATEwGetRateIdx(byRate));
-
-	    /* DBG_PRN_GRP09(("ParseMaxRate : HighSuppRate: %d, %X\n",
-	       RATEwGetRateIdx(byRate), byRate)); */
-        }
-    }
-
-    if ((pDevice->byPacketType == PK_TYPE_11GB)
-	&& CARDbIsOFDMinBasicRate((void *)pDevice)) {
-        pDevice->byPacketType = PK_TYPE_11GA;
-    }
-
-    *pbyTopCCKRate = pDevice->byTopCCKBasicRate;
-    *pbyTopOFDMRate = pDevice->byTopOFDMBasicRate;
-    *pwMaxSuppRate = RATEwGetRateIdx(byHighSuppRate);
-    if ((pDevice->byPacketType==PK_TYPE_11B) || (pDevice->byPacketType==PK_TYPE_11GB))
-       *pwMaxBasicRate = pDevice->byTopCCKBasicRate;
-    else
-       *pwMaxBasicRate = pDevice->byTopOFDMBasicRate;
-    if (wOldBasicRate != pDevice->wBasicRate)
-	CARDvSetRSPINF((void *)pDevice, pDevice->byBBType);
-
-     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Exit ParseMaxRate\n");
+	*pwSuppRate = 0;
+	uRateLen = pItemRates->len;
+
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"ParseMaxRate Len: %d\n", uRateLen);
+	if (pDevice->byBBType != BB_TYPE_11B) {
+		if (uRateLen > WLAN_RATES_MAXLEN)
+			uRateLen = WLAN_RATES_MAXLEN;
+	} else {
+		if (uRateLen > WLAN_RATES_MAXLEN_11B)
+			uRateLen = WLAN_RATES_MAXLEN_11B;
+	}
+
+	for (ii = 0; ii < uRateLen; ii++) {
+		byRate = (u8)(pItemRates->abyRates[ii]);
+		if (WLAN_MGMT_IS_BASICRATE(byRate) &&
+				(bUpdateBasicRate == true)) {
+			/*
+			 * add to basic rate set, update pDevice->byTopCCKBasicRate and
+			 * pDevice->byTopOFDMBasicRate
+			 */
+			CARDbAddBasicRate((void *)pDevice, RATEwGetRateIdx(byRate));
+			DBG_PRT(MSG_LEVEL_DEBUG,
+				KERN_INFO"ParseMaxRate AddBasicRate: %d\n",
+				RATEwGetRateIdx(byRate));
+		}
+		byRate = (u8)(pItemRates->abyRates[ii]&0x7F);
+		if (byHighSuppRate == 0)
+			byHighSuppRate = byRate;
+		if (byRate > byHighSuppRate)
+			byHighSuppRate = byRate;
+		*pwSuppRate |= (1<<RATEwGetRateIdx(byRate));
+	}
+	if ((pItemExtRates != NULL) && (pItemExtRates->byElementID == WLAN_EID_EXTSUPP_RATES) &&
+			(pDevice->byBBType != BB_TYPE_11B)) {
+
+		unsigned int uExtRateLen = pItemExtRates->len;
+
+		if (uExtRateLen > WLAN_RATES_MAXLEN)
+			uExtRateLen = WLAN_RATES_MAXLEN;
+
+		for (ii = 0; ii < uExtRateLen; ii++) {
+			byRate = (u8)(pItemExtRates->abyRates[ii]);
+			/* select highest basic rate */
+			if (WLAN_MGMT_IS_BASICRATE(pItemExtRates->abyRates[ii])) {
+				/*
+				 * add to basic rate set, update pDevice->byTopCCKBasicRate and
+				 * pDevice->byTopOFDMBasicRate
+				 */
+				CARDbAddBasicRate((void *)pDevice, RATEwGetRateIdx(byRate));
+				DBG_PRT(MSG_LEVEL_DEBUG,
+						KERN_INFO"ParseMaxRate AddBasicRate: %d\n",
+						RATEwGetRateIdx(byRate));
+			}
+			byRate = (u8)(pItemExtRates->abyRates[ii]&0x7F);
+			if (byHighSuppRate == 0)
+				byHighSuppRate = byRate;
+			if (byRate > byHighSuppRate)
+				byHighSuppRate = byRate;
+			*pwSuppRate |= (1<<RATEwGetRateIdx(byRate));
+
+			/* DBG_PRN_GRP09(("ParseMaxRate : HighSuppRate: %d, %X\n",
+			 * RATEwGetRateIdx(byRate), byRate));
+			 */
+		}
+	}
+
+	if ((pDevice->byPacketType == PK_TYPE_11GB)
+			&& CARDbIsOFDMinBasicRate((void *)pDevice)) {
+		pDevice->byPacketType = PK_TYPE_11GA;
+	}
+
+	*pbyTopCCKRate = pDevice->byTopCCKBasicRate;
+	*pbyTopOFDMRate = pDevice->byTopOFDMBasicRate;
+	*pwMaxSuppRate = RATEwGetRateIdx(byHighSuppRate);
+	if ((pDevice->byPacketType == PK_TYPE_11B) || (pDevice->byPacketType == PK_TYPE_11GB))
+		*pwMaxBasicRate = pDevice->byTopCCKBasicRate;
+	else
+		*pwMaxBasicRate = pDevice->byTopOFDMBasicRate;
+	if (wOldBasicRate != pDevice->wBasicRate)
+		CARDvSetRSPINF((void *)pDevice, pDevice->byBBType);
+
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Exit ParseMaxRate\n");
 }
 
 /*+
@@ -263,71 +265,71 @@ void RATEvTxRateFallBack(struct vnt_private *pDevice,
 
 	psNodeDBTable->uTimeCount++;
 
-    if (psNodeDBTable->uTxFail[MAX_RATE] > psNodeDBTable->uTxOk[MAX_RATE])
-        dwTxDiff = psNodeDBTable->uTxFail[MAX_RATE] - psNodeDBTable->uTxOk[MAX_RATE];
-
-    if ((psNodeDBTable->uTxOk[MAX_RATE] < AUTORATE_TXOK_CNT) &&
-        (dwTxDiff < AUTORATE_TXFAIL_CNT) &&
-        (psNodeDBTable->uTimeCount < AUTORATE_TIMEOUT)) {
-        return;
-    }
-
-    if (psNodeDBTable->uTimeCount >= AUTORATE_TIMEOUT) {
-        psNodeDBTable->uTimeCount = 0;
-    }
-
-    for (ii = 0; ii < MAX_RATE; ii++) {
-        if (psNodeDBTable->wSuppRate & (0x0001<<ii)) {
-            if (bAutoRate[ii] == true) {
-                wIdxUpRate = (u16) ii;
-            }
-        } else {
-            bAutoRate[ii] = false;
-        }
-    }
-
-    for (ii = 0; ii <= psNodeDBTable->wTxDataRate; ii++) {
-        if ( (psNodeDBTable->uTxOk[ii] != 0) ||
-             (psNodeDBTable->uTxFail[ii] != 0) ) {
-            dwThroughputTbl[ii] *= psNodeDBTable->uTxOk[ii];
-            if (ii < RATE_11M) {
-                psNodeDBTable->uTxFail[ii] *= 4;
-            }
-            dwThroughputTbl[ii] /= (psNodeDBTable->uTxOk[ii] + psNodeDBTable->uTxFail[ii]);
-        }
-        DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Rate %d,Ok: %d, Fail:%d, Throughput:%d\n",
-                       ii, (int)psNodeDBTable->uTxOk[ii], (int)psNodeDBTable->uTxFail[ii], (int)dwThroughputTbl[ii]);
-    }
-    dwThroughput = dwThroughputTbl[psNodeDBTable->wTxDataRate];
-
-    wIdxDownRate = psNodeDBTable->wTxDataRate;
-    for (ii = psNodeDBTable->wTxDataRate; ii > 0;) {
-        ii--;
-        if ( (dwThroughputTbl[ii] > dwThroughput) &&
-             (bAutoRate[ii]==true) ) {
-            dwThroughput = dwThroughputTbl[ii];
-            wIdxDownRate = (u16) ii;
-        }
-    }
-    psNodeDBTable->wTxDataRate = wIdxDownRate;
-    if (psNodeDBTable->uTxOk[MAX_RATE]) {
-        if (psNodeDBTable->uTxOk[MAX_RATE] >
-           (psNodeDBTable->uTxFail[MAX_RATE] * 4) ) {
-            psNodeDBTable->wTxDataRate = wIdxUpRate;
-        }
-    } else { /* adhoc, if uTxOk(total) == 0 & uTxFail(total) == 0 */
-        if (psNodeDBTable->uTxFail[MAX_RATE] == 0)
-            psNodeDBTable->wTxDataRate = wIdxUpRate;
-    }
-
-    if (pDevice->byBBType == BB_TYPE_11A) {
-        if (psNodeDBTable->wTxDataRate <= RATE_11M)
-            psNodeDBTable->wTxDataRate = RATE_6M;
-    }
-    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"uTxOk[MAX_RATE] %d, uTxFail[MAX_RATE]:%d\n",(int)psNodeDBTable->uTxOk[MAX_RATE], (int)psNodeDBTable->uTxFail[MAX_RATE]);
-    s_vResetCounter(psNodeDBTable);
-    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Rate: %d, U:%d, D:%d\n", (int)psNodeDBTable->wTxDataRate, (int)wIdxUpRate, (int)wIdxDownRate);
-    return;
+	if (psNodeDBTable->uTxFail[MAX_RATE] > psNodeDBTable->uTxOk[MAX_RATE])
+		dwTxDiff = psNodeDBTable->uTxFail[MAX_RATE] - psNodeDBTable->uTxOk[MAX_RATE];
+
+	if ((psNodeDBTable->uTxOk[MAX_RATE] < AUTORATE_TXOK_CNT) &&
+			(dwTxDiff < AUTORATE_TXFAIL_CNT) &&
+			(psNodeDBTable->uTimeCount < AUTORATE_TIMEOUT)) {
+		return;
+	}
+
+	if (psNodeDBTable->uTimeCount >= AUTORATE_TIMEOUT) {
+		psNodeDBTable->uTimeCount = 0;
+	}
+
+	for (ii = 0; ii < MAX_RATE; ii++) {
+		if (psNodeDBTable->wSuppRate & (0x0001<<ii)) {
+			if (bAutoRate[ii] == true) {
+				wIdxUpRate = (u16) ii;
+			}
+		} else {
+			bAutoRate[ii] = false;
+		}
+	}
+
+	for (ii = 0; ii <= psNodeDBTable->wTxDataRate; ii++) {
+		if ((psNodeDBTable->uTxOk[ii] != 0) ||
+				(psNodeDBTable->uTxFail[ii] != 0)) {
+			dwThroughputTbl[ii] *= psNodeDBTable->uTxOk[ii];
+			if (ii < RATE_11M) {
+				psNodeDBTable->uTxFail[ii] *= 4;
+			}
+			dwThroughputTbl[ii] /= (psNodeDBTable->uTxOk[ii] + psNodeDBTable->uTxFail[ii]);
+		}
+		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Rate %d,Ok: %d, Fail:%d, Throughput:%d\n",
+				ii, (int)psNodeDBTable->uTxOk[ii], (int)psNodeDBTable->uTxFail[ii], (int)dwThroughputTbl[ii]);
+	}
+	dwThroughput = dwThroughputTbl[psNodeDBTable->wTxDataRate];
+
+	wIdxDownRate = psNodeDBTable->wTxDataRate;
+	for (ii = psNodeDBTable->wTxDataRate; ii > 0;) {
+		ii--;
+		if ((dwThroughputTbl[ii] > dwThroughput) &&
+				(bAutoRate[ii] == true)) {
+			dwThroughput = dwThroughputTbl[ii];
+			wIdxDownRate = (u16) ii;
+		}
+	}
+	psNodeDBTable->wTxDataRate = wIdxDownRate;
+	if (psNodeDBTable->uTxOk[MAX_RATE]) {
+		if (psNodeDBTable->uTxOk[MAX_RATE] >
+				(psNodeDBTable->uTxFail[MAX_RATE] * 4)) {
+			psNodeDBTable->wTxDataRate = wIdxUpRate;
+		}
+	} else { /* adhoc, if uTxOk(total) == 0 & uTxFail(total) == 0 */
+		if (psNodeDBTable->uTxFail[MAX_RATE] == 0)
+			psNodeDBTable->wTxDataRate = wIdxUpRate;
+	}
+
+	if (pDevice->byBBType == BB_TYPE_11A) {
+		if (psNodeDBTable->wTxDataRate <= RATE_11M)
+			psNodeDBTable->wTxDataRate = RATE_6M;
+	}
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"uTxOk[MAX_RATE] %d, uTxFail[MAX_RATE]:%d\n", (int)psNodeDBTable->uTxOk[MAX_RATE], (int)psNodeDBTable->uTxFail[MAX_RATE]);
+	s_vResetCounter(psNodeDBTable);
+	DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Rate: %d, U:%d, D:%d\n", (int)psNodeDBTable->wTxDataRate, (int)wIdxUpRate, (int)wIdxDownRate);
+	return;
 }
 
 /*+
@@ -343,29 +345,24 @@ void RATEvTxRateFallBack(struct vnt_private *pDevice,
  * Return Value: None
  *
 -*/
-u8
-RATEuSetIE (
-     PWLAN_IE_SUPP_RATES pSrcRates,
-     PWLAN_IE_SUPP_RATES pDstRates,
-     unsigned int                uRateLen
-    )
+u8 RATEuSetIE(PWLAN_IE_SUPP_RATES pSrcRates, PWLAN_IE_SUPP_RATES pDstRates,
+		unsigned int uRateLen)
 {
-    unsigned int ii, uu, uRateCnt = 0;
-
-    if ((pSrcRates == NULL) || (pDstRates == NULL))
-        return 0;
-
-    if (pSrcRates->len == 0)
-        return 0;
-
-    for (ii = 0; ii < uRateLen; ii++) {
-        for (uu = 0; uu < pSrcRates->len; uu++) {
-            if ((pSrcRates->abyRates[uu] & 0x7F) == acbyIERate[ii]) {
-                pDstRates->abyRates[uRateCnt ++] = pSrcRates->abyRates[uu];
-                break;
-            }
-        }
-    }
-    return (u8)uRateCnt;
+	unsigned int ii, uu, uRateCnt = 0;
+
+	if ((pSrcRates == NULL) || (pDstRates == NULL))
+		return 0;
+
+	if (pSrcRates->len == 0)
+		return 0;
+
+	for (ii = 0; ii < uRateLen; ii++) {
+		for (uu = 0; uu < pSrcRates->len; uu++) {
+			if ((pSrcRates->abyRates[uu] & 0x7F) == acbyIERate[ii]) {
+				pDstRates->abyRates[uRateCnt++] = pSrcRates->abyRates[uu];
+				break;
+			}
+		}
+	}
+	return (u8)uRateCnt;
 }
-
-- 
cgit 


From 05aaf1ac5fc49034494e71c0b511371eae8f9bd8 Mon Sep 17 00:00:00 2001
From: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Date: Thu, 24 Oct 2013 00:20:12 +0530
Subject: staging: vt6656: removed braces from single line if-statement

removed braces from if-control flow structs whenever it
contained only one statement to comply with the coding style

Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/datarate.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/vt6656/datarate.c b/drivers/staging/vt6656/datarate.c
index 22071984346e..af9eab0c00a3 100644
--- a/drivers/staging/vt6656/datarate.c
+++ b/drivers/staging/vt6656/datarate.c
@@ -274,15 +274,13 @@ void RATEvTxRateFallBack(struct vnt_private *pDevice,
 		return;
 	}
 
-	if (psNodeDBTable->uTimeCount >= AUTORATE_TIMEOUT) {
+	if (psNodeDBTable->uTimeCount >= AUTORATE_TIMEOUT)
 		psNodeDBTable->uTimeCount = 0;
-	}
 
 	for (ii = 0; ii < MAX_RATE; ii++) {
 		if (psNodeDBTable->wSuppRate & (0x0001<<ii)) {
-			if (bAutoRate[ii] == true) {
+			if (bAutoRate[ii] == true)
 				wIdxUpRate = (u16) ii;
-			}
 		} else {
 			bAutoRate[ii] = false;
 		}
@@ -292,9 +290,8 @@ void RATEvTxRateFallBack(struct vnt_private *pDevice,
 		if ((psNodeDBTable->uTxOk[ii] != 0) ||
 				(psNodeDBTable->uTxFail[ii] != 0)) {
 			dwThroughputTbl[ii] *= psNodeDBTable->uTxOk[ii];
-			if (ii < RATE_11M) {
+			if (ii < RATE_11M)
 				psNodeDBTable->uTxFail[ii] *= 4;
-			}
 			dwThroughputTbl[ii] /= (psNodeDBTable->uTxOk[ii] + psNodeDBTable->uTxFail[ii]);
 		}
 		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"Rate %d,Ok: %d, Fail:%d, Throughput:%d\n",
-- 
cgit 


From 07bcc8003742bf58181b6c789ea6b5a3b7d1ba9a Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Thu, 24 Oct 2013 01:42:55 +0300
Subject: Staging: vt6655: Fix Sparse Warning for Static Declarations in tkip.c

This patch fixes the Sparse Warning "symbol was
not declared. Should it be static?" in tkip.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6655/tkip.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/vt6655/tkip.c b/drivers/staging/vt6655/tkip.c
index b3e087e19034..e7c17c6f7ea5 100644
--- a/drivers/staging/vt6655/tkip.c
+++ b/drivers/staging/vt6655/tkip.c
@@ -55,7 +55,7 @@
 /* The 2nd table is the same as the 1st but with the upper and lower   */
 /* bytes swapped. To allow an endian tolerant implementation, the byte */
 /* halves have been expressed independently here.                      */
-const unsigned char TKIP_Sbox_Lower[256] = {
+static const unsigned char TKIP_Sbox_Lower[256] = {
 	0xA5, 0x84, 0x99, 0x8D, 0x0D, 0xBD, 0xB1, 0x54,
 	0x50, 0x03, 0xA9, 0x7D, 0x19, 0x62, 0xE6, 0x9A,
 	0x45, 0x9D, 0x40, 0x87, 0x15, 0xEB, 0xC9, 0x0B,
@@ -90,7 +90,7 @@ const unsigned char TKIP_Sbox_Lower[256] = {
 	0xC3, 0xB0, 0x77, 0x11, 0xCB, 0xFC, 0xD6, 0x3A
 };
 
-const unsigned char TKIP_Sbox_Upper[256] = {
+static const unsigned char TKIP_Sbox_Upper[256] = {
 	0xC6, 0xF8, 0xEE, 0xF6, 0xFF, 0xD6, 0xDE, 0x91,
 	0x60, 0x02, 0xCE, 0x56, 0xE7, 0xB5, 0x4D, 0xEC,
 	0x8F, 0x1F, 0x89, 0xFA, 0xEF, 0xB2, 0x8E, 0xFB,
-- 
cgit 


From 0aa82696fb02466e17d09b0749cb7433a42921d5 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Thu, 24 Oct 2013 01:34:42 +0300
Subject: Staging: vt6655: Fix Sparse Warning for Static Declarations in wpa.c

This patch fixes the Sparse Warning "symbol was not declared.
Should it be static?" in wpa.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6655/wpa.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/vt6655/wpa.c b/drivers/staging/vt6655/wpa.c
index c5293bbcdab5..b697fa6c3b16 100644
--- a/drivers/staging/vt6655/wpa.c
+++ b/drivers/staging/vt6655/wpa.c
@@ -45,12 +45,12 @@
 /*---------------------  Static Variables  --------------------------*/
 static int msglevel = MSG_LEVEL_INFO;
 
-const unsigned char abyOUI00[4] = { 0x00, 0x50, 0xf2, 0x00 };
-const unsigned char abyOUI01[4] = { 0x00, 0x50, 0xf2, 0x01 };
-const unsigned char abyOUI02[4] = { 0x00, 0x50, 0xf2, 0x02 };
-const unsigned char abyOUI03[4] = { 0x00, 0x50, 0xf2, 0x03 };
-const unsigned char abyOUI04[4] = { 0x00, 0x50, 0xf2, 0x04 };
-const unsigned char abyOUI05[4] = { 0x00, 0x50, 0xf2, 0x05 };
+static const unsigned char abyOUI00[4] = { 0x00, 0x50, 0xf2, 0x00 };
+static const unsigned char abyOUI01[4] = { 0x00, 0x50, 0xf2, 0x01 };
+static const unsigned char abyOUI02[4] = { 0x00, 0x50, 0xf2, 0x02 };
+static const unsigned char abyOUI03[4] = { 0x00, 0x50, 0xf2, 0x03 };
+static const unsigned char abyOUI04[4] = { 0x00, 0x50, 0xf2, 0x04 };
+static const unsigned char abyOUI05[4] = { 0x00, 0x50, 0xf2, 0x05 };
 
 /*+
  *
-- 
cgit 


From 0f783c9db61e0016942d7f9b0bb8c2dcb053e613 Mon Sep 17 00:00:00 2001
From: Johannes Löthberg <johannes@kyriasis.com>
Date: Thu, 24 Oct 2013 07:26:46 +0200
Subject: Staging: vt6656: fix a brace coding style issue in power.c
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This patch fixes a brace warning in power.c found by checkpatch.pl

Signed-off-by: Johannes Löthberg <johannes@kyriasis.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/power.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/vt6656/power.c b/drivers/staging/vt6656/power.c
index 6334315807bb..af07984436bb 100644
--- a/drivers/staging/vt6656/power.c
+++ b/drivers/staging/vt6656/power.c
@@ -233,9 +233,8 @@ void PSvSendPSPOLL(struct vnt_private *pDevice)
 	pTxPacket->cbPayloadLen = 0;
 
 	/* log failure if sending failed */
-	if (csMgmt_xmit(pDevice, pTxPacket) != CMD_STATUS_PENDING) {
+	if (csMgmt_xmit(pDevice, pTxPacket) != CMD_STATUS_PENDING)
 		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Send PS-Poll packet failed..\n");
-	}
 }
 
 /*
-- 
cgit 


From 5c36d5ae2eb4bba0de17e6d4a15b249ab27bb5e6 Mon Sep 17 00:00:00 2001
From: Archana kumari <archanakumari959@gmail.com>
Date: Thu, 24 Oct 2013 23:59:47 +0530
Subject: staging: vt6655: fixed use of unnecessary braces in baseband.c

This patch fixes use of unnecessary braces in baseband.c

Signed-off-by: Archana kumari <archanakumari959@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6655/baseband.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/vt6655/baseband.c b/drivers/staging/vt6655/baseband.c
index c26418d806fb..959568a1eb6a 100644
--- a/drivers/staging/vt6655/baseband.c
+++ b/drivers/staging/vt6655/baseband.c
@@ -2434,13 +2434,12 @@ void BBvSetVGAGainOffset(PSDevice pDevice, unsigned char byData)
 
 	BBbReadEmbedded(pDevice->PortOffset, 0x0A, &byBBRxConf);//CR10
 	// patch for 3253B0 Baseband with Cardbus module
-	if (byData == pDevice->abyBBVGA[0]) {
+	if (byData == pDevice->abyBBVGA[0])
 		byBBRxConf |= 0x20;//0010 0000
-	} else if (pDevice->bShortSlotTime) {
+	else if (pDevice->bShortSlotTime)
 		byBBRxConf &= 0xDF;//1101 1111
-	} else {
+	else
 		byBBRxConf |= 0x20;//0010 0000
-	}
 	pDevice->byBBVGACurrent = byData;
 	BBbWriteEmbedded(pDevice->PortOffset, 0x0A, byBBRxConf);//CR10
 }
-- 
cgit 


From b28ca1c7c37a19e4670ccd0b96ba58d3d2d0cba5 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Mon, 21 Oct 2013 15:25:27 +0300
Subject: Staging: iio: fix printk(KERN_ERR .. in lis3l02dq_core.c

Fix checkpatch.pl issues with prefer netdev_err(netdev, .. then
dev_err(dev, .. then pr_err(.. to printk(KERN_ERR
in lis3l02dq_core.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/iio/accel/lis3l02dq_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/iio/accel/lis3l02dq_core.c b/drivers/staging/iio/accel/lis3l02dq_core.c
index 2789be381f1b..735c0a34fa93 100644
--- a/drivers/staging/iio/accel/lis3l02dq_core.c
+++ b/drivers/staging/iio/accel/lis3l02dq_core.c
@@ -716,7 +716,7 @@ static int lis3l02dq_probe(struct spi_device *spi)
 				  lis3l02dq_channels,
 				  ARRAY_SIZE(lis3l02dq_channels));
 	if (ret) {
-		printk(KERN_ERR "failed to initialize the buffer\n");
+		dev_err(&spi->dev, "failed to initialize the buffer\n");
 		goto error_unreg_buffer_funcs;
 	}
 
-- 
cgit 


From 7aff38176e79a22b1749c2af74060028298e6a45 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Thu, 24 Oct 2013 16:56:27 +0530
Subject: Staging: slicoss: Replace seq_printf with seq_puts

This patch fixes the following checkpatch.pl warning in slicoss.c:
WARNING: Prefer seq_puts to seq_printf

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/slicoss/slicoss.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c
index 8b5490b4efab..652272b96a56 100644
--- a/drivers/staging/slicoss/slicoss.c
+++ b/drivers/staging/slicoss/slicoss.c
@@ -1835,7 +1835,7 @@ static int slic_debug_card_show(struct seq_file *seq, void *v)
 #endif
 
 	seq_printf(seq, "driver_version           : %s\n", slic_proc_version);
-	seq_printf(seq, "Microcode versions:           \n");
+	seq_puts(seq, "Microcode versions:           \n");
 	seq_printf(seq, "    Gigabit (gb)         : %s %s\n",
 		    MOJAVE_UCODE_VERS_STRING, MOJAVE_UCODE_VERS_DATE);
 	seq_printf(seq, "    Gigabit Receiver     : %s %s\n",
@@ -1866,8 +1866,8 @@ static int slic_debug_card_show(struct seq_file *seq, void *v)
 			   config->macinfo[i].macaddrA[4],
 			   config->macinfo[i].macaddrA[5]);
 	}
-	seq_printf(seq, "     IF  Init State Duplex/Speed irq\n");
-	seq_printf(seq, "     -------------------------------\n");
+	seq_puts(seq, "     IF  Init State Duplex/Speed irq\n");
+	seq_puts(seq, "     -------------------------------\n");
 	for (i = 0; i < card->adapters_allocated; i++) {
 		struct adapter *adapter;
 
@@ -1910,7 +1910,7 @@ static int slic_debug_card_show(struct seq_file *seq, void *v)
 	switch (config->FruFormat) {
 	case ATK_FRU_FORMAT:
 		{
-			seq_printf(seq,
+			seq_puts(seq,
 			    "Vendor                   : Alacritech, Inc.\n");
 			seq_printf(seq,
 			    "Assembly #               : %c%c%c%c%c%c\n",
@@ -1943,9 +1943,9 @@ static int slic_debug_card_show(struct seq_file *seq, void *v)
 
 	default:
 		{
-			seq_printf(seq,
+			seq_puts(seq,
 			    "Vendor                   : Alacritech, Inc.\n");
-			seq_printf(seq,
+			seq_puts(seq,
 			    "Serial   #               : Empty FRU\n");
 			break;
 		}
@@ -1954,7 +1954,7 @@ static int slic_debug_card_show(struct seq_file *seq, void *v)
 	switch (config->OEMFruFormat) {
 	case VENDOR1_FRU_FORMAT:
 		{
-			seq_printf(seq, "FRU Information:\n");
+			seq_puts(seq, "FRU Information:\n");
 			seq_printf(seq, "    Commodity #          : %c\n",
 				    oemfru[0]);
 			seq_printf(seq,
@@ -1977,7 +1977,7 @@ static int slic_debug_card_show(struct seq_file *seq, void *v)
 
 	case VENDOR2_FRU_FORMAT:
 		{
-			seq_printf(seq, "FRU Information:\n");
+			seq_puts(seq, "FRU Information:\n");
 			seq_printf(seq,
 				    "    Part     #           : "
 				    "%c%c%c%c%c%c%c%c\n",
@@ -2000,12 +2000,12 @@ static int slic_debug_card_show(struct seq_file *seq, void *v)
 
 	case VENDOR3_FRU_FORMAT:
 		{
-			seq_printf(seq, "FRU Information:\n");
+			seq_puts(seq, "FRU Information:\n");
 		}
 
 	case VENDOR4_FRU_FORMAT:
 		{
-			seq_printf(seq, "FRU Information:\n");
+			seq_puts(seq, "FRU Information:\n");
 			seq_printf(seq,
 				    "    FRU Number           : "
 				    "%c%c%c%c%c%c%c%c\n",
-- 
cgit 


From f68cae405b170882d3c96008186afd862882f007 Mon Sep 17 00:00:00 2001
From: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Date: Mon, 21 Oct 2013 19:27:30 +0530
Subject: Staging: winbond: removing CamelCase in core.h

Fixing TODO item: fix severeCamelCaseInfestation

Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/winbond/core.h  | 8 ++++----
 drivers/staging/winbond/mds.c   | 4 ++--
 drivers/staging/winbond/wbusb.c | 6 +++---
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/winbond/core.h b/drivers/staging/winbond/core.h
index 6160b2fab833..270e8a19098b 100644
--- a/drivers/staging/winbond/core.h
+++ b/drivers/staging/winbond/core.h
@@ -18,8 +18,8 @@
 struct mlme_frame {
 	s8		*pMMPDU;
 	u16		len;
-	u8		DataType;
-	u8		IsInUsed;
+	u8		data_type;
+	u8		is_in_used;
 
 	u8		TxMMPDU[MAX_NUM_TX_MMPDU][MAX_MMPDU_SIZE];
 	u8		TxMMPDUInUse[(MAX_NUM_TX_MMPDU + 3) & ~0x03];
@@ -52,12 +52,12 @@ struct wbsoft_priv {
 	struct hw_data sHwData;	/*For HAL */
 	struct wb35_mds Mds;
 
-	atomic_t ThreadCount;
+	atomic_t thread_count;
 
 	u32 RxByteCount;
 	u32 TxByteCount;
 
-	u8 LinkName[WB_MAX_LINK_NAME_LEN];
+	u8 link_name[WB_MAX_LINK_NAME_LEN];
 
 	bool enabled;
 };
diff --git a/drivers/staging/winbond/mds.c b/drivers/staging/winbond/mds.c
index fcc3d2165ba9..cac7720bef2b 100644
--- a/drivers/staging/winbond/mds.c
+++ b/drivers/staging/winbond/mds.c
@@ -412,7 +412,7 @@ static void MLME_GetNextPacket(struct wbsoft_priv *adapter,
 	desc->buffer_size[desc->InternalUsed] = adapter->sMlmeFrame.len;
 	desc->buffer_total_size += adapter->sMlmeFrame.len;
 	desc->buffer_number++;
-	desc->Type = adapter->sMlmeFrame.DataType;
+	desc->Type = adapter->sMlmeFrame.data_type;
 }
 
 static void MLMEfreeMMPDUBuffer(struct wbsoft_priv *adapter, s8 *pData)
@@ -440,7 +440,7 @@ static void MLME_SendComplete(struct wbsoft_priv *adapter, u8 PacketID,
 	MLMEfreeMMPDUBuffer(adapter, adapter->sMlmeFrame.pMMPDU);
 
 	/* Return resource */
-	adapter->sMlmeFrame.IsInUsed = PACKET_FREE_TO_USE;
+	adapter->sMlmeFrame.is_in_used = PACKET_FREE_TO_USE;
 }
 
 void
diff --git a/drivers/staging/winbond/wbusb.c b/drivers/staging/winbond/wbusb.c
index 3fa1ae4d3d76..07891a3e316e 100644
--- a/drivers/staging/winbond/wbusb.c
+++ b/drivers/staging/winbond/wbusb.c
@@ -122,16 +122,16 @@ static void wbsoft_tx(struct ieee80211_hw *dev,
 {
 	struct wbsoft_priv *priv = dev->priv;
 
-	if (priv->sMlmeFrame.IsInUsed != PACKET_FREE_TO_USE) {
+	if (priv->sMlmeFrame.is_in_used != PACKET_FREE_TO_USE) {
 		priv->sMlmeFrame.wNumTxMMPDUDiscarded++;
 		kfree_skb(skb);
 		return;
 	}
 
-	priv->sMlmeFrame.IsInUsed = PACKET_COME_FROM_MLME;
+	priv->sMlmeFrame.is_in_used = PACKET_COME_FROM_MLME;
 
 	priv->sMlmeFrame.pMMPDU		= skb->data;
-	priv->sMlmeFrame.DataType	= FRAME_TYPE_802_11_MANAGEMENT;
+	priv->sMlmeFrame.data_type	= FRAME_TYPE_802_11_MANAGEMENT;
 	priv->sMlmeFrame.len		= skb->len;
 	priv->sMlmeFrame.wNumTxMMPDU++;
 
-- 
cgit 


From b1ad55e64c5beea4440b4b70cdf26e8258cbf58c Mon Sep 17 00:00:00 2001
From: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Date: Tue, 22 Oct 2013 16:04:48 +0530
Subject: Staging: winbond: removing unused variables thread_count and
 link_name[]

Removing the variable thread_count and link_name[WB_MAX_LINK_NAME_LEN] array
since they are not used elsewhere in the driver

Signed-off-by: Ashvini Varatharaj <ashvinivaratharaj@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/winbond/core.h | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/staging/winbond/core.h b/drivers/staging/winbond/core.h
index 270e8a19098b..fc0ef24fad3b 100644
--- a/drivers/staging/winbond/core.h
+++ b/drivers/staging/winbond/core.h
@@ -52,13 +52,9 @@ struct wbsoft_priv {
 	struct hw_data sHwData;	/*For HAL */
 	struct wb35_mds Mds;
 
-	atomic_t thread_count;
-
 	u32 RxByteCount;
 	u32 TxByteCount;
 
-	u8 link_name[WB_MAX_LINK_NAME_LEN];
-
 	bool enabled;
 };
 
-- 
cgit 


From 97b0b6ca4c0f0f964d3c6918301ca45353ef8bc5 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Thu, 24 Oct 2013 09:55:17 +0800
Subject: drivers: staging: rtl8188eu: use 'ccflags-y' instead of EXTRA_CFLAGS
 in Makefile

If command line use EXTRA_CFLAGS (e.g. "EXTRA_CFLAGS=-mmedium-calls"
for arc architecture, with allmodconfig), it can not pass compiling,
the related error:

  drivers/staging/rtl8188eu/core/rtw_ap.c:22:27: fatal error: osdep_service.h: No such file or directory

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/Makefile | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/staging/rtl8188eu/Makefile b/drivers/staging/rtl8188eu/Makefile
index 0bd32de44600..0a617b42cc99 100644
--- a/drivers/staging/rtl8188eu/Makefile
+++ b/drivers/staging/rtl8188eu/Makefile
@@ -1,5 +1,3 @@
-EXTRA_CFLAGS += -I$(src)/include
-
 r8188eu-y :=				\
 		core/rtw_ap.o		\
 		core/rtw_br_ext.o	\
@@ -66,4 +64,4 @@ r8188eu-y :=				\
 
 obj-$(CONFIG_R8188EU)	:= r8188eu.o
 
-ccflags-y += -D__CHECK_ENDIAN__
+ccflags-y += -D__CHECK_ENDIAN__ -I$(src)/include
-- 
cgit 


From 24799c22aea81a8890a66e101cd5a3b175980777 Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Sat, 28 Sep 2013 03:07:21 +0400
Subject: sh-pfc: r8a7778: Add CAN pin groups

Add CAN data and clock pin groups to R8A7778 PFC driver.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/pinctrl/sh-pfc/pfc-r8a7778.c | 55 ++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)

diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7778.c b/drivers/pinctrl/sh-pfc/pfc-r8a7778.c
index 20b1d0d671a3..8b1881c20598 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a7778.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a7778.c
@@ -1304,6 +1304,33 @@ AUDIO_PFC_DAT(audio_clkout_a,	AUDIO_CLKOUT_A);
 AUDIO_PFC_PIN(audio_clkout_b,	RCAR_GP_PIN(1, 16));
 AUDIO_PFC_DAT(audio_clkout_b,	AUDIO_CLKOUT_B);
 
+/* - CAN macro --------_----------------------------------------------------- */
+#define CAN_PFC_PINS(name, args...)		SH_PFC_PINS(name, args)
+#define CAN_PFC_DATA(name, tx, rx)		SH_PFC_MUX2(name, tx, rx)
+#define CAN_PFC_CLK(name, clk)			SH_PFC_MUX1(name, clk)
+
+/* - CAN0 ------------------------------------------------------------------- */
+CAN_PFC_PINS(can0_data_a,	RCAR_GP_PIN(1, 30),	RCAR_GP_PIN(1, 31));
+CAN_PFC_DATA(can0_data_a,	CAN0_TX_A,		CAN0_RX_A);
+CAN_PFC_PINS(can0_data_b,	RCAR_GP_PIN(2, 26),	RCAR_GP_PIN(2, 27));
+CAN_PFC_DATA(can0_data_b,	CAN0_TX_B,		CAN0_RX_B);
+
+/* - CAN1 ------------------------------------------------------------------- */
+CAN_PFC_PINS(can1_data_a,	RCAR_GP_PIN(4, 20),	RCAR_GP_PIN(4, 19));
+CAN_PFC_DATA(can1_data_a,	CAN1_TX_A,		CAN1_RX_A);
+CAN_PFC_PINS(can1_data_b,	RCAR_GP_PIN(2, 28),	RCAR_GP_PIN(2, 29));
+CAN_PFC_DATA(can1_data_b,	CAN1_TX_B,		CAN1_RX_B);
+
+/* - CAN_CLK  --------------------------------------------------------------- */
+CAN_PFC_PINS(can_clk_a,		RCAR_GP_PIN(3, 24));
+CAN_PFC_CLK(can_clk_a,		CAN_CLK_A);
+CAN_PFC_PINS(can_clk_b,		RCAR_GP_PIN(1, 16));
+CAN_PFC_CLK(can_clk_b,		CAN_CLK_B);
+CAN_PFC_PINS(can_clk_c,		RCAR_GP_PIN(4, 24));
+CAN_PFC_CLK(can_clk_c,		CAN_CLK_C);
+CAN_PFC_PINS(can_clk_d,		RCAR_GP_PIN(2, 25));
+CAN_PFC_CLK(can_clk_d,		CAN_CLK_D);
+
 /* - Ether ------------------------------------------------------------------ */
 SH_PFC_PINS(ether_rmii,		RCAR_GP_PIN(4, 10),	RCAR_GP_PIN(4, 11),
 				RCAR_GP_PIN(4, 13),	RCAR_GP_PIN(4, 9),
@@ -1698,6 +1725,14 @@ static const struct sh_pfc_pin_group pinmux_groups[] = {
 	SH_PFC_PIN_GROUP(audio_clk_c),
 	SH_PFC_PIN_GROUP(audio_clkout_a),
 	SH_PFC_PIN_GROUP(audio_clkout_b),
+	SH_PFC_PIN_GROUP(can0_data_a),
+	SH_PFC_PIN_GROUP(can0_data_b),
+	SH_PFC_PIN_GROUP(can1_data_a),
+	SH_PFC_PIN_GROUP(can1_data_b),
+	SH_PFC_PIN_GROUP(can_clk_a),
+	SH_PFC_PIN_GROUP(can_clk_b),
+	SH_PFC_PIN_GROUP(can_clk_c),
+	SH_PFC_PIN_GROUP(can_clk_d),
 	SH_PFC_PIN_GROUP(ether_rmii),
 	SH_PFC_PIN_GROUP(ether_link),
 	SH_PFC_PIN_GROUP(ether_magic),
@@ -1826,6 +1861,24 @@ static const char * const audio_clk_groups[] = {
 	"audio_clkout_b",
 };
 
+static const char * const can0_groups[] = {
+	"can0_data_a",
+	"can0_data_b",
+	"can_clk_a",
+	"can_clk_b",
+	"can_clk_c",
+	"can_clk_d",
+};
+
+static const char * const can1_groups[] = {
+	"can1_data_a",
+	"can1_data_b",
+	"can_clk_a",
+	"can_clk_b",
+	"can_clk_c",
+	"can_clk_d",
+};
+
 static const char * const ether_groups[] = {
 	"ether_rmii",
 	"ether_link",
@@ -2022,6 +2075,8 @@ static const char * const vin1_groups[] = {
 
 static const struct sh_pfc_function pinmux_functions[] = {
 	SH_PFC_FUNCTION(audio_clk),
+	SH_PFC_FUNCTION(can0),
+	SH_PFC_FUNCTION(can1),
 	SH_PFC_FUNCTION(ether),
 	SH_PFC_FUNCTION(hscif0),
 	SH_PFC_FUNCTION(hscif1),
-- 
cgit 


From 5088451962389924b9f05e22e6956f5c1a515d1a Mon Sep 17 00:00:00 2001
From: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Date: Thu, 17 Oct 2013 06:46:05 +0900
Subject: pinctrl: sh-pfc: r8a7791 PFC support

Add PFC support for the r8a7791 SoC V2 including pin groups for
on-chip devices such as MSIOF, SCIF, USB, MMC, SDHI, DU.

Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Kunihito Higashiyama <kunihito.higashiyama.ur@renesas.com>
Signed-off-by: Yoshikazu Fujikawa <yoshikazu.fujikawa.ue@renesas.com>
Signed-off-by: Nobuyuki HIRAI <nobuyuki.hirai.xe@renesas.com>
Signed-off-by: Shinobu Uehara <shinobu.uehara.xc@renesas.com>
Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com>
Signed-off-by: Ryo Kataoka <ryo.kataoka.wt@renesas.com>
[damm@opensource.se: Forward ported to upstream, minor fixes]
Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
---
 drivers/pinctrl/sh-pfc/Kconfig       |    5 +
 drivers/pinctrl/sh-pfc/Makefile      |    1 +
 drivers/pinctrl/sh-pfc/core.c        |    9 +
 drivers/pinctrl/sh-pfc/core.h        |    1 +
 drivers/pinctrl/sh-pfc/pfc-r8a7791.c | 4214 ++++++++++++++++++++++++++++++++++
 5 files changed, 4230 insertions(+)
 create mode 100644 drivers/pinctrl/sh-pfc/pfc-r8a7791.c

diff --git a/drivers/pinctrl/sh-pfc/Kconfig b/drivers/pinctrl/sh-pfc/Kconfig
index 636a882b406e..26187aa5cf5b 100644
--- a/drivers/pinctrl/sh-pfc/Kconfig
+++ b/drivers/pinctrl/sh-pfc/Kconfig
@@ -45,6 +45,11 @@ config PINCTRL_PFC_R8A7790
 	depends on ARCH_R8A7790
 	select PINCTRL_SH_PFC
 
+config PINCTRL_PFC_R8A7791
+	def_bool y
+	depends on ARCH_R8A7791
+	select PINCTRL_SH_PFC
+
 config PINCTRL_PFC_SH7203
 	def_bool y
 	depends on CPU_SUBTYPE_SH7203
diff --git a/drivers/pinctrl/sh-pfc/Makefile b/drivers/pinctrl/sh-pfc/Makefile
index 5e0c222c12d7..ad8f4cf9faaa 100644
--- a/drivers/pinctrl/sh-pfc/Makefile
+++ b/drivers/pinctrl/sh-pfc/Makefile
@@ -8,6 +8,7 @@ obj-$(CONFIG_PINCTRL_PFC_R8A7740)	+= pfc-r8a7740.o
 obj-$(CONFIG_PINCTRL_PFC_R8A7778)	+= pfc-r8a7778.o
 obj-$(CONFIG_PINCTRL_PFC_R8A7779)	+= pfc-r8a7779.o
 obj-$(CONFIG_PINCTRL_PFC_R8A7790)	+= pfc-r8a7790.o
+obj-$(CONFIG_PINCTRL_PFC_R8A7791)	+= pfc-r8a7791.o
 obj-$(CONFIG_PINCTRL_PFC_SH7203)	+= pfc-sh7203.o
 obj-$(CONFIG_PINCTRL_PFC_SH7264)	+= pfc-sh7264.o
 obj-$(CONFIG_PINCTRL_PFC_SH7269)	+= pfc-sh7269.o
diff --git a/drivers/pinctrl/sh-pfc/core.c b/drivers/pinctrl/sh-pfc/core.c
index 738f14f65cff..d77ece5217f0 100644
--- a/drivers/pinctrl/sh-pfc/core.c
+++ b/drivers/pinctrl/sh-pfc/core.c
@@ -431,6 +431,12 @@ static const struct of_device_id sh_pfc_of_table[] = {
 		.data = &r8a7790_pinmux_info,
 	},
 #endif
+#ifdef CONFIG_PINCTRL_PFC_R8A7791
+	{
+		.compatible = "renesas,pfc-r8a7791",
+		.data = &r8a7791_pinmux_info,
+	},
+#endif
 #ifdef CONFIG_PINCTRL_PFC_SH7372
 	{
 		.compatible = "renesas,pfc-sh7372",
@@ -558,6 +564,9 @@ static const struct platform_device_id sh_pfc_id_table[] = {
 #ifdef CONFIG_PINCTRL_PFC_R8A7790
 	{ "pfc-r8a7790", (kernel_ulong_t)&r8a7790_pinmux_info },
 #endif
+#ifdef CONFIG_PINCTRL_PFC_R8A7791
+	{ "pfc-r8a7791", (kernel_ulong_t)&r8a7791_pinmux_info },
+#endif
 #ifdef CONFIG_PINCTRL_PFC_SH7203
 	{ "pfc-sh7203", (kernel_ulong_t)&sh7203_pinmux_info },
 #endif
diff --git a/drivers/pinctrl/sh-pfc/core.h b/drivers/pinctrl/sh-pfc/core.h
index a1b23762ac90..11ea87268658 100644
--- a/drivers/pinctrl/sh-pfc/core.h
+++ b/drivers/pinctrl/sh-pfc/core.h
@@ -69,6 +69,7 @@ extern const struct sh_pfc_soc_info r8a7740_pinmux_info;
 extern const struct sh_pfc_soc_info r8a7778_pinmux_info;
 extern const struct sh_pfc_soc_info r8a7779_pinmux_info;
 extern const struct sh_pfc_soc_info r8a7790_pinmux_info;
+extern const struct sh_pfc_soc_info r8a7791_pinmux_info;
 extern const struct sh_pfc_soc_info sh7203_pinmux_info;
 extern const struct sh_pfc_soc_info sh7264_pinmux_info;
 extern const struct sh_pfc_soc_info sh7269_pinmux_info;
diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7791.c b/drivers/pinctrl/sh-pfc/pfc-r8a7791.c
new file mode 100644
index 000000000000..bf76a654c02f
--- /dev/null
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a7791.c
@@ -0,0 +1,4214 @@
+/*
+ * r8a7791 processor support - PFC hardware block.
+ *
+ * Copyright (C) 2013 Renesas Electronics Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/platform_data/gpio-rcar.h>
+
+#include "core.h"
+#include "sh_pfc.h"
+
+#define CPU_ALL_PORT(fn, sfx)						\
+	PORT_GP_32(0, fn, sfx),						\
+	PORT_GP_32(1, fn, sfx),						\
+	PORT_GP_32(2, fn, sfx),						\
+	PORT_GP_32(3, fn, sfx),						\
+	PORT_GP_32(4, fn, sfx),						\
+	PORT_GP_32(5, fn, sfx),						\
+	PORT_GP_32(6, fn, sfx),						\
+	PORT_GP_32(7, fn, sfx)
+
+enum {
+	PINMUX_RESERVED = 0,
+
+	PINMUX_DATA_BEGIN,
+	GP_ALL(DATA),
+	PINMUX_DATA_END,
+
+	PINMUX_FUNCTION_BEGIN,
+	GP_ALL(FN),
+
+	/* GPSR0 */
+	FN_IP0_0, FN_IP0_1, FN_IP0_2, FN_IP0_3, FN_IP0_4, FN_IP0_5,
+	FN_IP0_6, FN_IP0_7, FN_IP0_8, FN_IP0_9, FN_IP0_10, FN_IP0_11,
+	FN_IP0_12, FN_IP0_13, FN_IP0_14, FN_IP0_15, FN_IP0_18_16, FN_IP0_20_19,
+	FN_IP0_22_21, FN_IP0_24_23, FN_IP0_26_25, FN_IP0_28_27, FN_IP0_30_29,
+	FN_IP1_1_0, FN_IP1_3_2, FN_IP1_5_4, FN_IP1_7_6, FN_IP1_10_8,
+	FN_IP1_13_11, FN_IP1_16_14, FN_IP1_19_17, FN_IP1_22_20,
+
+	/* GPSR1 */
+	FN_IP1_25_23, FN_IP1_28_26, FN_IP1_31_29, FN_IP2_2_0, FN_IP2_4_3,
+	FN_IP2_6_5, FN_IP2_9_7, FN_IP2_12_10, FN_IP2_15_13, FN_IP2_18_16,
+	FN_IP2_20_19, FN_IP2_22_21, FN_EX_CS0_N, FN_IP2_24_23, FN_IP2_26_25,
+	FN_IP2_29_27, FN_IP3_2_0, FN_IP3_5_3, FN_IP3_8_6, FN_RD_N,
+	FN_IP3_11_9, FN_IP3_13_12, FN_IP3_15_14 , FN_IP3_17_16 , FN_IP3_19_18,
+	FN_IP3_21_20,
+
+	/* GPSR2 */
+	FN_IP3_27_25, FN_IP3_30_28, FN_IP4_1_0, FN_IP4_4_2, FN_IP4_7_5,
+	FN_IP4_9_8, FN_IP4_12_10, FN_IP4_15_13, FN_IP4_18_16, FN_IP4_19,
+	FN_IP4_20, FN_IP4_21, FN_IP4_23_22, FN_IP4_25_24, FN_IP4_27_26,
+	FN_IP4_30_28, FN_IP5_2_0, FN_IP5_5_3, FN_IP5_8_6, FN_IP5_11_9,
+	FN_IP5_14_12, FN_IP5_16_15, FN_IP5_19_17, FN_IP5_21_20, FN_IP5_23_22,
+	FN_IP5_25_24, FN_IP5_28_26, FN_IP5_31_29, FN_AUDIO_CLKA, FN_IP6_2_0,
+	FN_IP6_5_3, FN_IP6_7_6,
+
+	/* GPSR3 */
+	FN_IP7_5_3, FN_IP7_8_6, FN_IP7_10_9, FN_IP7_12_11, FN_IP7_14_13,
+	FN_IP7_16_15, FN_IP7_18_17, FN_IP7_20_19, FN_IP7_23_21, FN_IP7_26_24,
+	FN_IP7_29_27, FN_IP8_2_0, FN_IP8_5_3, FN_IP8_8_6, FN_IP8_11_9,
+	FN_IP8_14_12, FN_IP8_17_15, FN_IP8_20_18, FN_IP8_23_21, FN_IP8_25_24,
+	FN_IP8_27_26, FN_IP8_30_28, FN_IP9_2_0, FN_IP9_5_3, FN_IP9_6, FN_IP9_7,
+	FN_IP9_10_8, FN_IP9_11, FN_IP9_12, FN_IP9_15_13, FN_IP9_16,
+	FN_IP9_18_17,
+
+	/* GPSR4 */
+	FN_VI0_CLK, FN_IP9_20_19, FN_IP9_22_21, FN_IP9_24_23, FN_IP9_26_25,
+	FN_VI0_DATA0_VI0_B0, FN_VI0_DATA1_VI0_B1, FN_VI0_DATA2_VI0_B2,
+	FN_IP9_28_27, FN_VI0_DATA4_VI0_B4, FN_VI0_DATA5_VI0_B5,
+	FN_VI0_DATA6_VI0_B6, FN_VI0_DATA7_VI0_B7, FN_IP9_31_29, FN_IP10_2_0,
+	FN_IP10_5_3, FN_IP10_8_6, FN_IP10_11_9, FN_IP10_14_12, FN_IP10_16_15,
+	FN_IP10_18_17, FN_IP10_21_19, FN_IP10_24_22, FN_IP10_26_25,
+	FN_IP10_28_27, FN_IP10_31_29, FN_IP11_2_0, FN_IP11_5_3, FN_IP11_8_6,
+	FN_IP15_1_0, FN_IP15_3_2, FN_IP15_5_4,
+
+	/* GPSR5 */
+	FN_IP11_11_9, FN_IP11_14_12, FN_IP11_16_15, FN_IP11_18_17, FN_IP11_19,
+	FN_IP11_20, FN_IP11_21, FN_IP11_22, FN_IP11_23, FN_IP11_24,
+	FN_IP11_25, FN_IP11_26, FN_IP11_27, FN_IP11_29_28, FN_IP11_31_30,
+	FN_IP12_1_0, FN_IP12_3_2, FN_IP12_6_4, FN_IP12_9_7, FN_IP12_12_10,
+	FN_IP12_15_13, FN_IP12_17_16, FN_IP12_19_18, FN_IP12_21_20,
+	FN_IP12_23_22, FN_IP12_26_24, FN_IP12_29_27, FN_IP13_2_0, FN_IP13_4_3,
+	FN_IP13_6_5, FN_IP13_9_7, FN_IP3_24_22,
+
+	/* GPSR6 */
+	FN_IP13_10, FN_IP13_11, FN_IP13_12, FN_IP13_13, FN_IP13_14,
+	FN_IP13_15, FN_IP13_18_16, FN_IP13_21_19, FN_IP13_22, FN_IP13_24_23,
+	FN_IP13_25, FN_IP13_26, FN_IP13_27, FN_IP13_30_28, FN_IP14_1_0,
+	FN_IP14_2, FN_IP14_3, FN_IP14_4, FN_IP14_5, FN_IP14_6, FN_IP14_7,
+	FN_IP14_10_8, FN_IP14_13_11, FN_IP14_16_14, FN_IP14_19_17,
+	FN_IP14_22_20, FN_IP14_25_23, FN_IP14_28_26, FN_IP14_31_29,
+	FN_USB1_OVC, FN_DU0_DOTCLKIN,
+
+	/* GPSR7 */
+	FN_IP15_17_15, FN_IP15_20_18, FN_IP15_23_21, FN_IP15_26_24,
+	FN_IP15_29_27, FN_IP16_2_0, FN_IP16_5_3, FN_IP16_7_6, FN_IP16_9_8,
+	FN_IP16_11_10, FN_IP6_9_8, FN_IP6_11_10, FN_IP6_13_12, FN_IP6_15_14,
+	FN_IP6_18_16, FN_IP6_20_19, FN_IP6_23_21, FN_IP6_26_24, FN_IP6_29_27,
+	FN_IP7_2_0, FN_IP15_8_6, FN_IP15_11_9, FN_IP15_14_12,
+	FN_USB0_PWEN, FN_USB0_OVC, FN_USB1_PWEN,
+
+	/* IPSR0 */
+	FN_D0, FN_D1, FN_D2, FN_D3, FN_D4, FN_D5, FN_D6, FN_D7, FN_D8,
+	FN_D9, FN_D10, FN_D11, FN_D12, FN_D13, FN_D14, FN_D15,
+	FN_A0, FN_ATAWR0_N_C, FN_MSIOF0_SCK_B, FN_SCL0_C, FN_PWM2_B,
+	FN_A1, FN_MSIOF0_SYNC_B, FN_A2, FN_MSIOF0_SS1_B,
+	FN_A3, FN_MSIOF0_SS2_B, FN_A4, FN_MSIOF0_TXD_B,
+	FN_A5, FN_MSIOF0_RXD_B, FN_A6, FN_MSIOF1_SCK,
+
+	/* IPSR1 */
+	FN_A7, FN_MSIOF1_SYNC, FN_A8, FN_MSIOF1_SS1, FN_SCL0,
+	FN_A9, FN_MSIOF1_SS2, FN_SDA0,
+	FN_A10, FN_MSIOF1_TXD, FN_MSIOF1_TXD_D,
+	FN_A11, FN_MSIOF1_RXD, FN_SCL3_D, FN_MSIOF1_RXD_D,
+	FN_A12, FN_FMCLK, FN_SDA3_D, FN_MSIOF1_SCK_D,
+	FN_A13, FN_ATAG0_N_C, FN_BPFCLK, FN_MSIOF1_SS1_D,
+	FN_A14, FN_ATADIR0_N_C, FN_FMIN, FN_FMIN_C, FN_MSIOF1_SYNC_D,
+	FN_A15, FN_BPFCLK_C,
+	FN_A16, FN_DREQ2_B, FN_FMCLK_C, FN_SCIFA1_SCK_B,
+	FN_A17, FN_DACK2_B, FN_SDA0_C,
+	FN_A18, FN_DREQ1, FN_SCIFA1_RXD_C, FN_SCIFB1_RXD_C,
+
+	/* IPSR2 */
+	FN_A19, FN_DACK1, FN_SCIFA1_TXD_C, FN_SCIFB1_TXD_C, FN_SCIFB1_SCK_B,
+	FN_A20, FN_SPCLK,
+	FN_A21, FN_ATAWR0_N_B, FN_MOSI_IO0,
+	FN_A22, FN_MISO_IO1, FN_FMCLK_B, FN_TX0, FN_SCIFA0_TXD,
+	FN_A23, FN_IO2, FN_BPFCLK_B, FN_RX0, FN_SCIFA0_RXD,
+	FN_A24, FN_DREQ2, FN_IO3, FN_TX1, FN_SCIFA1_TXD,
+	FN_A25, FN_DACK2, FN_SSL, FN_DREQ1_C, FN_RX1, FN_SCIFA1_RXD,
+	FN_CS0_N, FN_ATAG0_N_B, FN_SCL1,
+	FN_CS1_N_A26, FN_ATADIR0_N_B, FN_SDA1,
+	FN_EX_CS1_N, FN_MSIOF2_SCK,
+	FN_EX_CS2_N, FN_ATAWR0_N, FN_MSIOF2_SYNC,
+	FN_EX_CS3_N, FN_ATADIR0_N, FN_MSIOF2_TXD, FN_ATAG0_N, FN_EX_WAIT1,
+
+	/* IPSR3 */
+	FN_EX_CS4_N, FN_ATARD0_N, FN_MSIOF2_RXD, FN_EX_WAIT2,
+	FN_EX_CS5_N, FN_ATACS00_N, FN_MSIOF2_SS1, FN_HRX1_B,
+	FN_SCIFB1_RXD_B, FN_PWM1, FN_TPU_TO1,
+	FN_BS_N, FN_ATACS10_N, FN_MSIOF2_SS2, FN_HTX1_B,
+	FN_SCIFB1_TXD_B, FN_PWM2, FN_TPU_TO2,
+	FN_RD_WR_N, FN_HRX2_B, FN_FMIN_B, FN_SCIFB0_RXD_B, FN_DREQ1_D,
+	FN_WE0_N, FN_HCTS2_N_B, FN_SCIFB0_TXD_B,
+	FN_WE1_N, FN_ATARD0_N_B, FN_HTX2_B, FN_SCIFB0_RTS_N_B,
+	FN_EX_WAIT0, FN_HRTS2_N_B, FN_SCIFB0_CTS_N_B,
+	FN_DREQ0, FN_PWM3, FN_TPU_TO3,
+	FN_DACK0, FN_DRACK0, FN_REMOCON,
+	FN_SPEEDIN, FN_HSCK0_C, FN_HSCK2_C, FN_SCIFB0_SCK_B,
+	FN_SCIFB2_SCK_B, FN_DREQ2_C, FN_HTX2_D,
+	FN_SSI_SCK0129, FN_HRX0_C, FN_HRX2_C, FN_SCIFB0_RXD_C, FN_SCIFB2_RXD_C,
+	FN_SSI_WS0129, FN_HTX0_C, FN_HTX2_C, FN_SCIFB0_TXD_C, FN_SCIFB2_TXD_C,
+
+	/* IPSR4 */
+	FN_SSI_SDATA0, FN_SCL0_B, FN_SCL7_B, FN_MSIOF2_SCK_C,
+	FN_SSI_SCK1, FN_SDA0_B, FN_SDA7_B, FN_MSIOF2_SYNC_C, FN_GLO_I0_D,
+	FN_SSI_WS1, FN_SCL1_B, FN_SCL8_B, FN_MSIOF2_TXD_C, FN_GLO_I1_D,
+	FN_SSI_SDATA1, FN_SDA1_B, FN_SDA8_B, FN_MSIOF2_RXD_C,
+	FN_SSI_SCK2, FN_SCL2, FN_GPS_CLK_B, FN_GLO_Q0_D, FN_HSCK1_E,
+	FN_SSI_WS2, FN_SDA2, FN_GPS_SIGN_B, FN_RX2_E,
+	FN_GLO_Q1_D, FN_HCTS1_N_E,
+	FN_SSI_SDATA2, FN_GPS_MAG_B, FN_TX2_E, FN_HRTS1_N_E,
+	FN_SSI_SCK34, FN_SSI_WS34, FN_SSI_SDATA3,
+	FN_SSI_SCK4, FN_GLO_SS_D,
+	FN_SSI_WS4, FN_GLO_RFON_D,
+	FN_SSI_SDATA4, FN_MSIOF2_SCK_D,
+	FN_SSI_SCK5, FN_MSIOF1_SCK_C, FN_TS_SDATA0, FN_GLO_I0,
+	FN_MSIOF2_SYNC_D, FN_VI1_R2_B,
+
+	/* IPSR5 */
+	FN_SSI_WS5, FN_MSIOF1_SYNC_C, FN_TS_SCK0, FN_GLO_I1,
+	FN_MSIOF2_TXD_D, FN_VI1_R3_B,
+	FN_SSI_SDATA5, FN_MSIOF1_TXD_C, FN_TS_SDEN0, FN_GLO_Q0,
+	FN_MSIOF2_SS1_D, FN_VI1_R4_B,
+	FN_SSI_SCK6, FN_MSIOF1_RXD_C, FN_TS_SPSYNC0, FN_GLO_Q1,
+	FN_MSIOF2_RXD_D, FN_VI1_R5_B,
+	FN_SSI_WS6, FN_GLO_SCLK, FN_MSIOF2_SS2_D, FN_VI1_R6_B,
+	FN_SSI_SDATA6, FN_STP_IVCXO27_0_B, FN_GLO_SDATA, FN_VI1_R7_B,
+	FN_SSI_SCK78, FN_STP_ISCLK_0_B, FN_GLO_SS,
+	FN_SSI_WS78, FN_TX0_D, FN_STP_ISD_0_B, FN_GLO_RFON,
+	FN_SSI_SDATA7, FN_RX0_D, FN_STP_ISEN_0_B,
+	FN_SSI_SDATA8, FN_TX1_D, FN_STP_ISSYNC_0_B,
+	FN_SSI_SCK9, FN_RX1_D, FN_GLO_SCLK_D,
+	FN_SSI_WS9, FN_TX3_D, FN_CAN0_TX_D, FN_GLO_SDATA_D,
+	FN_SSI_SDATA9, FN_RX3_D, FN_CAN0_RX_D,
+
+	/* IPSR6 */
+	FN_AUDIO_CLKB, FN_STP_OPWM_0_B, FN_MSIOF1_SCK_B,
+	FN_SCIF_CLK, FN_BPFCLK_E,
+	FN_AUDIO_CLKC, FN_SCIFB0_SCK_C, FN_MSIOF1_SYNC_B, FN_RX2,
+	FN_SCIFA2_RXD, FN_FMIN_E,
+	FN_AUDIO_CLKOUT, FN_MSIOF1_SS1_B, FN_TX2, FN_SCIFA2_TXD,
+	FN_IRQ0, FN_SCIFB1_RXD_D, FN_INTC_IRQ0_N,
+	FN_IRQ1, FN_SCIFB1_SCK_C, FN_INTC_IRQ1_N,
+	FN_IRQ2, FN_SCIFB1_TXD_D, FN_INTC_IRQ2_N,
+	FN_IRQ3, FN_SCL4_C, FN_MSIOF2_TXD_E, FN_INTC_IRQ3_N,
+	FN_IRQ4, FN_HRX1_C, FN_SDA4_C, FN_MSIOF2_RXD_E, FN_INTC_IRQ4_N,
+	FN_IRQ5, FN_HTX1_C, FN_SCL1_E, FN_MSIOF2_SCK_E,
+	FN_IRQ6, FN_HSCK1_C, FN_MSIOF1_SS2_B, FN_SDA1_E, FN_MSIOF2_SYNC_E,
+	FN_IRQ7, FN_HCTS1_N_C, FN_MSIOF1_TXD_B, FN_GPS_CLK_C, FN_GPS_CLK_D,
+	FN_IRQ8, FN_HRTS1_N_C, FN_MSIOF1_RXD_B, FN_GPS_SIGN_C, FN_GPS_SIGN_D,
+
+	/* IPSR7 */
+	FN_IRQ9, FN_DU1_DOTCLKIN_B, FN_CAN_CLK_D, FN_GPS_MAG_C,
+	FN_SCIF_CLK_B, FN_GPS_MAG_D,
+	FN_DU1_DR0, FN_LCDOUT0, FN_VI1_DATA0_B, FN_TX0_B,
+	FN_SCIFA0_TXD_B, FN_MSIOF2_SCK_B,
+	FN_DU1_DR1, FN_LCDOUT1, FN_VI1_DATA1_B, FN_RX0_B,
+	FN_SCIFA0_RXD_B, FN_MSIOF2_SYNC_B,
+	FN_DU1_DR2, FN_LCDOUT2, FN_SSI_SCK0129_B,
+	FN_DU1_DR3, FN_LCDOUT3, FN_SSI_WS0129_B,
+	FN_DU1_DR4, FN_LCDOUT4, FN_SSI_SDATA0_B,
+	FN_DU1_DR5, FN_LCDOUT5, FN_SSI_SCK1_B,
+	FN_DU1_DR6, FN_LCDOUT6, FN_SSI_WS1_B,
+	FN_DU1_DR7, FN_LCDOUT7, FN_SSI_SDATA1_B,
+	FN_DU1_DG0, FN_LCDOUT8, FN_VI1_DATA2_B, FN_TX1_B,
+	FN_SCIFA1_TXD_B, FN_MSIOF2_SS1_B,
+	FN_DU1_DG1, FN_LCDOUT9, FN_VI1_DATA3_B, FN_RX1_B,
+	FN_SCIFA1_RXD_B, FN_MSIOF2_SS2_B,
+	FN_DU1_DG2, FN_LCDOUT10, FN_VI1_DATA4_B, FN_SCIF1_SCK_B,
+	FN_SCIFA1_SCK, FN_SSI_SCK78_B,
+
+	/* IPSR8 */
+	FN_DU1_DG3, FN_LCDOUT11, FN_VI1_DATA5_B, FN_SSI_WS78_B,
+	FN_DU1_DG4, FN_LCDOUT12, FN_VI1_DATA6_B, FN_HRX0_B,
+	FN_SCIFB2_RXD_B, FN_SSI_SDATA7_B,
+	FN_DU1_DG5, FN_LCDOUT13, FN_VI1_DATA7_B, FN_HCTS0_N_B,
+	FN_SCIFB2_TXD_B, FN_SSI_SDATA8_B,
+	FN_DU1_DG6, FN_LCDOUT14, FN_HRTS0_N_B,
+	FN_SCIFB2_CTS_N_B, FN_SSI_SCK9_B,
+	FN_DU1_DG7, FN_LCDOUT15, FN_HTX0_B, FN_SCIFB2_RTS_N_B, FN_SSI_WS9_B,
+	FN_DU1_DB0, FN_LCDOUT16, FN_VI1_CLK_B, FN_TX2_B,
+	FN_SCIFA2_TXD_B, FN_MSIOF2_TXD_B,
+	FN_DU1_DB1, FN_LCDOUT17, FN_VI1_HSYNC_N_B, FN_RX2_B,
+	FN_SCIFA2_RXD_B, FN_MSIOF2_RXD_B,
+	FN_DU1_DB2, FN_LCDOUT18, FN_VI1_VSYNC_N_B, FN_SCIF2_SCK_B,
+	FN_SCIFA2_SCK, FN_SSI_SDATA9_B,
+	FN_DU1_DB3, FN_LCDOUT19, FN_VI1_CLKENB_B,
+	FN_DU1_DB4, FN_LCDOUT20, FN_VI1_FIELD_B, FN_CAN1_RX,
+	FN_DU1_DB5, FN_LCDOUT21, FN_TX3, FN_SCIFA3_TXD, FN_CAN1_TX,
+
+	/* IPSR9 */
+	FN_DU1_DB6, FN_LCDOUT22, FN_SCL3_C, FN_RX3, FN_SCIFA3_RXD,
+	FN_DU1_DB7, FN_LCDOUT23, FN_SDA3_C, FN_SCIF3_SCK, FN_SCIFA3_SCK,
+	FN_DU1_DOTCLKIN, FN_QSTVA_QVS,
+	FN_DU1_DOTCLKOUT0, FN_QCLK,
+	FN_DU1_DOTCLKOUT1, FN_QSTVB_QVE, FN_CAN0_TX,
+	FN_TX3_B, FN_SCL2_B, FN_PWM4,
+	FN_DU1_EXHSYNC_DU1_HSYNC, FN_QSTH_QHS,
+	FN_DU1_EXVSYNC_DU1_VSYNC, FN_QSTB_QHE,
+	FN_DU1_EXODDF_DU1_ODDF_DISP_CDE, FN_QCPV_QDE,
+	FN_CAN0_RX, FN_RX3_B, FN_SDA2_B,
+	FN_DU1_DISP, FN_QPOLA,
+	FN_DU1_CDE, FN_QPOLB, FN_PWM4_B,
+	FN_VI0_CLKENB, FN_TX4, FN_SCIFA4_TXD, FN_TS_SDATA0_D,
+	FN_VI0_FIELD, FN_RX4, FN_SCIFA4_RXD, FN_TS_SCK0_D,
+	FN_VI0_HSYNC_N, FN_TX5, FN_SCIFA5_TXD, FN_TS_SDEN0_D,
+	FN_VI0_VSYNC_N, FN_RX5, FN_SCIFA5_RXD, FN_TS_SPSYNC0_D,
+	FN_VI0_DATA3_VI0_B3, FN_SCIF3_SCK_B, FN_SCIFA3_SCK_B,
+	FN_VI0_G0, FN_SCL8, FN_STP_IVCXO27_0_C, FN_SCL4,
+	FN_HCTS2_N, FN_SCIFB2_CTS_N, FN_ATAWR1_N,
+
+	/* IPSR10 */
+	FN_VI0_G1, FN_SDA8, FN_STP_ISCLK_0_C, FN_SDA4,
+	FN_HRTS2_N, FN_SCIFB2_RTS_N, FN_ATADIR1_N,
+	FN_VI0_G2, FN_VI2_HSYNC_N, FN_STP_ISD_0_C, FN_SCL3_B,
+	FN_HSCK2, FN_SCIFB2_SCK, FN_ATARD1_N,
+	FN_VI0_G3, FN_VI2_VSYNC_N, FN_STP_ISEN_0_C, FN_SDA3_B,
+	FN_HRX2, FN_SCIFB2_RXD, FN_ATACS01_N,
+	FN_VI0_G4, FN_VI2_CLKENB, FN_STP_ISSYNC_0_C,
+	FN_HTX2, FN_SCIFB2_TXD, FN_SCIFB0_SCK_D,
+	FN_VI0_G5, FN_VI2_FIELD, FN_STP_OPWM_0_C, FN_FMCLK_D,
+	FN_CAN0_TX_E, FN_HTX1_D, FN_SCIFB0_TXD_D,
+	FN_VI0_G6, FN_VI2_CLK, FN_BPFCLK_D,
+	FN_VI0_G7, FN_VI2_DATA0, FN_FMIN_D,
+	FN_VI0_R0, FN_VI2_DATA1, FN_GLO_I0_B,
+	FN_TS_SDATA0_C, FN_ATACS11_N,
+	FN_VI0_R1, FN_VI2_DATA2, FN_GLO_I1_B,
+	FN_TS_SCK0_C, FN_ATAG1_N,
+	FN_VI0_R2, FN_VI2_DATA3, FN_GLO_Q0_B, FN_TS_SDEN0_C,
+	FN_VI0_R3, FN_VI2_DATA4, FN_GLO_Q1_B, FN_TS_SPSYNC0_C,
+	FN_VI0_R4, FN_VI2_DATA5, FN_GLO_SCLK_B, FN_TX0_C, FN_SCL1_D,
+
+	/* IPSR11 */
+	FN_VI0_R5, FN_VI2_DATA6, FN_GLO_SDATA_B, FN_RX0_C, FN_SDA1_D,
+	FN_VI0_R6, FN_VI2_DATA7, FN_GLO_SS_B, FN_TX1_C, FN_SCL4_B,
+	FN_VI0_R7, FN_GLO_RFON_B, FN_RX1_C, FN_CAN0_RX_E,
+	FN_SDA4_B, FN_HRX1_D, FN_SCIFB0_RXD_D,
+	FN_VI1_HSYNC_N, FN_AVB_RXD0, FN_TS_SDATA0_B, FN_TX4_B, FN_SCIFA4_TXD_B,
+	FN_VI1_VSYNC_N, FN_AVB_RXD1, FN_TS_SCK0_B, FN_RX4_B, FN_SCIFA4_RXD_B,
+	FN_VI1_CLKENB, FN_AVB_RXD2, FN_TS_SDEN0_B,
+	FN_VI1_FIELD, FN_AVB_RXD3, FN_TS_SPSYNC0_B,
+	FN_VI1_CLK, FN_AVB_RXD4, FN_VI1_DATA0, FN_AVB_RXD5,
+	FN_VI1_DATA1, FN_AVB_RXD6, FN_VI1_DATA2, FN_AVB_RXD7,
+	FN_VI1_DATA3, FN_AVB_RX_ER, FN_VI1_DATA4, FN_AVB_MDIO,
+	FN_VI1_DATA5, FN_AVB_RX_DV, FN_VI1_DATA6, FN_AVB_MAGIC,
+	FN_VI1_DATA7, FN_AVB_MDC,
+	FN_ETH_MDIO, FN_AVB_RX_CLK, FN_SCL2_C,
+	FN_ETH_CRS_DV, FN_AVB_LINK, FN_SDA2_C,
+
+	/* IPSR12 */
+	FN_ETH_RX_ER, FN_AVB_CRS, FN_SCL3, FN_SCL7,
+	FN_ETH_RXD0, FN_AVB_PHY_INT, FN_SDA3, FN_SDA7,
+	FN_ETH_RXD1, FN_AVB_GTXREFCLK, FN_CAN0_TX_C,
+	FN_SCL2_D, FN_MSIOF1_RXD_E,
+	FN_ETH_LINK, FN_AVB_TXD0, FN_CAN0_RX_C, FN_SDA2_D, FN_MSIOF1_SCK_E,
+	FN_ETH_REFCLK, FN_AVB_TXD1, FN_SCIFA3_RXD_B,
+	FN_CAN1_RX_C, FN_MSIOF1_SYNC_E,
+	FN_ETH_TXD1, FN_AVB_TXD2, FN_SCIFA3_TXD_B,
+	FN_CAN1_TX_C, FN_MSIOF1_TXD_E,
+	FN_ETH_TX_EN, FN_AVB_TXD3, FN_TCLK1_B, FN_CAN_CLK_B,
+	FN_ETH_MAGIC, FN_AVB_TXD4, FN_IETX_C,
+	FN_ETH_TXD0, FN_AVB_TXD5, FN_IECLK_C,
+	FN_ETH_MDC, FN_AVB_TXD6, FN_IERX_C,
+	FN_STP_IVCXO27_0, FN_AVB_TXD7, FN_SCIFB2_TXD_D,
+	FN_ADIDATA_B, FN_MSIOF0_SYNC_C,
+	FN_STP_ISCLK_0, FN_AVB_TX_EN, FN_SCIFB2_RXD_D,
+	FN_ADICS_SAMP_B, FN_MSIOF0_SCK_C,
+
+	/* IPSR13 */
+	FN_STP_ISD_0, FN_AVB_TX_ER, FN_SCIFB2_SCK_C,
+	FN_ADICLK_B, FN_MSIOF0_SS1_C,
+	FN_STP_ISEN_0, FN_AVB_TX_CLK, FN_ADICHS0_B, FN_MSIOF0_SS2_C,
+	FN_STP_ISSYNC_0, FN_AVB_COL, FN_ADICHS1_B, FN_MSIOF0_RXD_C,
+	FN_STP_OPWM_0, FN_AVB_GTX_CLK, FN_PWM0_B,
+	FN_ADICHS2_B, FN_MSIOF0_TXD_C,
+	FN_SD0_CLK, FN_SPCLK_B, FN_SD0_CMD, FN_MOSI_IO0_B,
+	FN_SD0_DATA0, FN_MISO_IO1_B, FN_SD0_DATA1, FN_IO2_B,
+	FN_SD0_DATA2, FN_IO3_B, FN_SD0_DATA3, FN_SSL_B,
+	FN_SD0_CD, FN_MMC_D6_B, FN_SIM0_RST_B, FN_CAN0_RX_F,
+	FN_SCIFA5_TXD_B, FN_TX3_C,
+	FN_SD0_WP, FN_MMC_D7_B, FN_SIM0_D_B, FN_CAN0_TX_F,
+	FN_SCIFA5_RXD_B, FN_RX3_C,
+	FN_SD1_CMD, FN_REMOCON_B, FN_SD1_DATA0, FN_SPEEDIN_B,
+	FN_SD1_DATA1, FN_IETX_B, FN_SD1_DATA2, FN_IECLK_B,
+	FN_SD1_DATA3, FN_IERX_B,
+	FN_SD1_CD, FN_PWM0, FN_TPU_TO0, FN_SCL1_C,
+
+	/* IPSR14 */
+	FN_SD1_WP, FN_PWM1_B, FN_SDA1_C,
+	FN_SD2_CLK, FN_MMC_CLK, FN_SD2_CMD, FN_MMC_CMD,
+	FN_SD2_DATA0, FN_MMC_D0, FN_SD2_DATA1, FN_MMC_D1,
+	FN_SD2_DATA2, FN_MMC_D2, FN_SD2_DATA3, FN_MMC_D3,
+	FN_SD2_CD, FN_MMC_D4, FN_SCL8_C, FN_TX5_B, FN_SCIFA5_TXD_C,
+	FN_SD2_WP, FN_MMC_D5, FN_SDA8_C, FN_RX5_B, FN_SCIFA5_RXD_C,
+	FN_MSIOF0_SCK, FN_RX2_C, FN_ADIDATA, FN_VI1_CLK_C, FN_VI1_G0_B,
+	FN_MSIOF0_SYNC, FN_TX2_C, FN_ADICS_SAMP, FN_VI1_CLKENB_C, FN_VI1_G1_B,
+	FN_MSIOF0_TXD, FN_ADICLK, FN_VI1_FIELD_C, FN_VI1_G2_B,
+	FN_MSIOF0_RXD, FN_ADICHS0, FN_VI1_DATA0_C, FN_VI1_G3_B,
+	FN_MSIOF0_SS1, FN_MMC_D6, FN_ADICHS1, FN_TX0_E,
+	FN_VI1_HSYNC_N_C, FN_SCL7_C, FN_VI1_G4_B,
+	FN_MSIOF0_SS2, FN_MMC_D7, FN_ADICHS2, FN_RX0_E,
+	FN_VI1_VSYNC_N_C, FN_SDA7_C, FN_VI1_G5_B,
+
+	/* IPSR15 */
+	FN_SIM0_RST, FN_IETX, FN_CAN1_TX_D,
+	FN_SIM0_CLK, FN_IECLK, FN_CAN_CLK_C,
+	FN_SIM0_D, FN_IERX, FN_CAN1_RX_D,
+	FN_GPS_CLK, FN_DU1_DOTCLKIN_C, FN_AUDIO_CLKB_B,
+	FN_PWM5_B, FN_SCIFA3_TXD_C,
+	FN_GPS_SIGN, FN_TX4_C, FN_SCIFA4_TXD_C, FN_PWM5,
+	FN_VI1_G6_B, FN_SCIFA3_RXD_C,
+	FN_GPS_MAG, FN_RX4_C, FN_SCIFA4_RXD_C, FN_PWM6,
+	FN_VI1_G7_B, FN_SCIFA3_SCK_C,
+	FN_HCTS0_N, FN_SCIFB0_CTS_N, FN_GLO_I0_C, FN_TCLK1, FN_VI1_DATA1_C,
+	FN_HRTS0_N, FN_SCIFB0_RTS_N, FN_GLO_I1_C, FN_VI1_DATA2_C,
+	FN_HSCK0, FN_SCIFB0_SCK, FN_GLO_Q0_C, FN_CAN_CLK,
+	FN_TCLK2, FN_VI1_DATA3_C,
+	FN_HRX0, FN_SCIFB0_RXD, FN_GLO_Q1_C, FN_CAN0_RX_B, FN_VI1_DATA4_C,
+	FN_HTX0, FN_SCIFB0_TXD, FN_GLO_SCLK_C, FN_CAN0_TX_B, FN_VI1_DATA5_C,
+
+	/* IPSR16 */
+	FN_HRX1, FN_SCIFB1_RXD, FN_VI1_R0_B, FN_GLO_SDATA_C, FN_VI1_DATA6_C,
+	FN_HTX1, FN_SCIFB1_TXD, FN_VI1_R1_B, FN_GLO_SS_C, FN_VI1_DATA7_C,
+	FN_HSCK1, FN_SCIFB1_SCK, FN_MLB_CK, FN_GLO_RFON_C,
+	FN_HCTS1_N, FN_SCIFB1_CTS_N, FN_MLB_SIG, FN_CAN1_TX_B,
+	FN_HRTS1_N, FN_SCIFB1_RTS_N, FN_MLB_DAT, FN_CAN1_RX_B,
+
+	/* MOD_SEL */
+	FN_SEL_SCIF1_0, FN_SEL_SCIF1_1, FN_SEL_SCIF1_2, FN_SEL_SCIF1_3,
+	FN_SEL_SCIFB_0, FN_SEL_SCIFB_1, FN_SEL_SCIFB_2, FN_SEL_SCIFB_3,
+	FN_SEL_SCIFB2_0, FN_SEL_SCIFB2_1, FN_SEL_SCIFB2_2, FN_SEL_SCIFB2_3,
+	FN_SEL_SCIFB1_0, FN_SEL_SCIFB1_1, FN_SEL_SCIFB1_2, FN_SEL_SCIFB1_3,
+	FN_SEL_SCIFA1_0, FN_SEL_SCIFA1_1, FN_SEL_SCIFA1_2,
+	FN_SEL_SSI9_0, FN_SEL_SSI9_1,
+	FN_SEL_SCFA_0, FN_SEL_SCFA_1,
+	FN_SEL_QSP_0, FN_SEL_QSP_1,
+	FN_SEL_SSI7_0, FN_SEL_SSI7_1,
+	FN_SEL_HSCIF1_0, FN_SEL_HSCIF1_1, FN_SEL_HSCIF1_2, FN_SEL_HSCIF1_3,
+	FN_SEL_HSCIF1_4,
+	FN_SEL_VI1_0, FN_SEL_VI1_1, FN_SEL_VI1_2,
+	FN_SEL_TMU1_0, FN_SEL_TMU1_1,
+	FN_SEL_LBS_0, FN_SEL_LBS_1, FN_SEL_LBS_2, FN_SEL_LBS_3,
+	FN_SEL_TSIF0_0, FN_SEL_TSIF0_1, FN_SEL_TSIF0_2, FN_SEL_TSIF0_3,
+	FN_SEL_SOF0_0, FN_SEL_SOF0_1, FN_SEL_SOF0_2,
+
+	/* MOD_SEL2 */
+	FN_SEL_SCIF0_0, FN_SEL_SCIF0_1, FN_SEL_SCIF0_2, FN_SEL_SCIF0_3,
+	FN_SEL_SCIF0_4,
+	FN_SEL_SCIF_0, FN_SEL_SCIF_1,
+	FN_SEL_CAN0_0, FN_SEL_CAN0_1, FN_SEL_CAN0_2, FN_SEL_CAN0_3,
+	FN_SEL_CAN0_4, FN_SEL_CAN0_5,
+	FN_SEL_CAN1_0, FN_SEL_CAN1_1, FN_SEL_CAN1_2, FN_SEL_CAN1_3,
+	FN_SEL_SCIFA2_0, FN_SEL_SCIFA2_1,
+	FN_SEL_SCIF4_0, FN_SEL_SCIF4_1, FN_SEL_SCIF4_2,
+	FN_SEL_ADG_0, FN_SEL_ADG_1,
+	FN_SEL_FM_0, FN_SEL_FM_1, FN_SEL_FM_2, FN_SEL_FM_3, FN_SEL_FM_4,
+	FN_SEL_SCIFA5_0, FN_SEL_SCIFA5_1, FN_SEL_SCIFA5_2,
+	FN_SEL_GPS_0, FN_SEL_GPS_1, FN_SEL_GPS_2, FN_SEL_GPS_3,
+	FN_SEL_SCIFA4_0, FN_SEL_SCIFA4_1, FN_SEL_SCIFA4_2,
+	FN_SEL_SCIFA3_0, FN_SEL_SCIFA3_1, FN_SEL_SCIFA3_2,
+	FN_SEL_SIM_0, FN_SEL_SIM_1,
+	FN_SEL_SSI8_0, FN_SEL_SSI8_1,
+
+	/* MOD_SEL3 */
+	FN_SEL_HSCIF2_0, FN_SEL_HSCIF2_1, FN_SEL_HSCIF2_2, FN_SEL_HSCIF2_3,
+	FN_SEL_CANCLK_0, FN_SEL_CANCLK_1, FN_SEL_CANCLK_2, FN_SEL_CANCLK_3,
+	FN_SEL_IIC8_0, FN_SEL_IIC8_1, FN_SEL_IIC8_2,
+	FN_SEL_IIC7_0, FN_SEL_IIC7_1, FN_SEL_IIC7_2,
+	FN_SEL_IIC4_0, FN_SEL_IIC4_1, FN_SEL_IIC4_2,
+	FN_SEL_IIC3_0, FN_SEL_IIC3_1, FN_SEL_IIC3_2, FN_SEL_IIC3_3,
+	FN_SEL_SCIF3_0, FN_SEL_SCIF3_1, FN_SEL_SCIF3_2, FN_SEL_SCIF3_3,
+	FN_SEL_IEB_0, FN_SEL_IEB_1, FN_SEL_IEB_2,
+	FN_SEL_MMC_0, FN_SEL_MMC_1,
+	FN_SEL_SCIF5_0, FN_SEL_SCIF5_1,
+	FN_SEL_IIC2_0, FN_SEL_IIC2_1, FN_SEL_IIC2_2, FN_SEL_IIC2_3,
+	FN_SEL_IIC1_0, FN_SEL_IIC1_1, FN_SEL_IIC1_2, FN_SEL_IIC1_3,
+	FN_SEL_IIC1_4,
+	FN_SEL_IIC0_0, FN_SEL_IIC0_1, FN_SEL_IIC0_2,
+
+	/* MOD_SEL4 */
+	FN_SEL_SOF1_0, FN_SEL_SOF1_1, FN_SEL_SOF1_2, FN_SEL_SOF1_3,
+	FN_SEL_SOF1_4,
+	FN_SEL_HSCIF0_0, FN_SEL_HSCIF0_1, FN_SEL_HSCIF0_2,
+	FN_SEL_DIS_0, FN_SEL_DIS_1, FN_SEL_DIS_2,
+	FN_SEL_RAD_0, FN_SEL_RAD_1,
+	FN_SEL_RCN_0, FN_SEL_RCN_1,
+	FN_SEL_RSP_0, FN_SEL_RSP_1,
+	FN_SEL_SCIF2_0, FN_SEL_SCIF2_1, FN_SEL_SCIF2_2, FN_SEL_SCIF2_3,
+	FN_SEL_SCIF2_4,
+	FN_SEL_SOF2_0, FN_SEL_SOF2_1, FN_SEL_SOF2_2, FN_SEL_SOF2_3,
+	FN_SEL_SOF2_4,
+	FN_SEL_SSI1_0, FN_SEL_SSI1_1,
+	FN_SEL_SSI0_0, FN_SEL_SSI0_1,
+	FN_SEL_SSP_0, FN_SEL_SSP_1, FN_SEL_SSP_2,
+	PINMUX_FUNCTION_END,
+
+	PINMUX_MARK_BEGIN,
+
+	EX_CS0_N_MARK, RD_N_MARK,
+
+	AUDIO_CLKA_MARK,
+
+	VI0_CLK_MARK, VI0_DATA0_VI0_B0_MARK, VI0_DATA1_VI0_B1_MARK,
+	VI0_DATA2_VI0_B2_MARK, VI0_DATA4_VI0_B4_MARK, VI0_DATA5_VI0_B5_MARK,
+	VI0_DATA6_VI0_B6_MARK, VI0_DATA7_VI0_B7_MARK,
+
+	SD1_CLK_MARK,
+
+	USB0_PWEN_MARK, USB0_OVC_MARK, USB1_PWEN_MARK, USB1_OVC_MARK,
+	DU0_DOTCLKIN_MARK,
+
+	/* IPSR0 */
+	D0_MARK, D1_MARK, D2_MARK, D3_MARK, D4_MARK, D5_MARK,
+	D6_MARK, D7_MARK, D8_MARK,
+	D9_MARK, D10_MARK, D11_MARK, D12_MARK, D13_MARK, D14_MARK, D15_MARK,
+	A0_MARK, ATAWR0_N_C_MARK, MSIOF0_SCK_B_MARK, SCL0_C_MARK, PWM2_B_MARK,
+	A1_MARK, MSIOF0_SYNC_B_MARK, A2_MARK, MSIOF0_SS1_B_MARK,
+	A3_MARK, MSIOF0_SS2_B_MARK, A4_MARK, MSIOF0_TXD_B_MARK,
+	A5_MARK, MSIOF0_RXD_B_MARK, A6_MARK, MSIOF1_SCK_MARK,
+
+	/* IPSR1 */
+	A7_MARK, MSIOF1_SYNC_MARK, A8_MARK, MSIOF1_SS1_MARK, SCL0_MARK,
+	A9_MARK, MSIOF1_SS2_MARK, SDA0_MARK,
+	A10_MARK, MSIOF1_TXD_MARK, MSIOF1_TXD_D_MARK,
+	A11_MARK, MSIOF1_RXD_MARK, SCL3_D_MARK, MSIOF1_RXD_D_MARK,
+	A12_MARK, FMCLK_MARK, SDA3_D_MARK, MSIOF1_SCK_D_MARK,
+	A13_MARK, ATAG0_N_C_MARK, BPFCLK_MARK, MSIOF1_SS1_D_MARK,
+	A14_MARK, ATADIR0_N_C_MARK, FMIN_MARK, FMIN_C_MARK, MSIOF1_SYNC_D_MARK,
+	A15_MARK, BPFCLK_C_MARK,
+	A16_MARK, DREQ2_B_MARK, FMCLK_C_MARK, SCIFA1_SCK_B_MARK,
+	A17_MARK, DACK2_B_MARK, SDA0_C_MARK,
+	A18_MARK, DREQ1_MARK, SCIFA1_RXD_C_MARK, SCIFB1_RXD_C_MARK,
+
+	/* IPSR2 */
+	A19_MARK, DACK1_MARK, SCIFA1_TXD_C_MARK,
+	SCIFB1_TXD_C_MARK, SCIFB1_SCK_B_MARK,
+	A20_MARK, SPCLK_MARK,
+	A21_MARK, ATAWR0_N_B_MARK, MOSI_IO0_MARK,
+	A22_MARK, MISO_IO1_MARK, FMCLK_B_MARK, TX0_MARK, SCIFA0_TXD_MARK,
+	A23_MARK, IO2_MARK, BPFCLK_B_MARK, RX0_MARK, SCIFA0_RXD_MARK,
+	A24_MARK, DREQ2_MARK, IO3_MARK, TX1_MARK, SCIFA1_TXD_MARK,
+	A25_MARK, DACK2_MARK, SSL_MARK, DREQ1_C_MARK,
+	RX1_MARK, SCIFA1_RXD_MARK,
+	CS0_N_MARK, ATAG0_N_B_MARK, SCL1_MARK,
+	CS1_N_A26_MARK, ATADIR0_N_B_MARK, SDA1_MARK,
+	EX_CS1_N_MARK, MSIOF2_SCK_MARK,
+	EX_CS2_N_MARK, ATAWR0_N_MARK, MSIOF2_SYNC_MARK,
+	EX_CS3_N_MARK, ATADIR0_N_MARK, MSIOF2_TXD_MARK,
+	ATAG0_N_MARK, EX_WAIT1_MARK,
+
+	/* IPSR3 */
+	EX_CS4_N_MARK, ATARD0_N_MARK, MSIOF2_RXD_MARK, EX_WAIT2_MARK,
+	EX_CS5_N_MARK, ATACS00_N_MARK, MSIOF2_SS1_MARK, HRX1_B_MARK,
+	SCIFB1_RXD_B_MARK, PWM1_MARK, TPU_TO1_MARK,
+	BS_N_MARK, ATACS10_N_MARK, MSIOF2_SS2_MARK, HTX1_B_MARK,
+	SCIFB1_TXD_B_MARK, PWM2_MARK, TPU_TO2_MARK,
+	RD_WR_N_MARK, HRX2_B_MARK, FMIN_B_MARK,
+	SCIFB0_RXD_B_MARK, DREQ1_D_MARK,
+	WE0_N_MARK, HCTS2_N_B_MARK, SCIFB0_TXD_B_MARK,
+	WE1_N_MARK, ATARD0_N_B_MARK, HTX2_B_MARK, SCIFB0_RTS_N_B_MARK,
+	EX_WAIT0_MARK, HRTS2_N_B_MARK, SCIFB0_CTS_N_B_MARK,
+	DREQ0_MARK, PWM3_MARK, TPU_TO3_MARK,
+	DACK0_MARK, DRACK0_MARK, REMOCON_MARK,
+	SPEEDIN_MARK, HSCK0_C_MARK, HSCK2_C_MARK, SCIFB0_SCK_B_MARK,
+	SCIFB2_SCK_B_MARK, DREQ2_C_MARK, HTX2_D_MARK,
+	SSI_SCK0129_MARK, HRX0_C_MARK, HRX2_C_MARK,
+	SCIFB0_RXD_C_MARK, SCIFB2_RXD_C_MARK,
+	SSI_WS0129_MARK, HTX0_C_MARK, HTX2_C_MARK,
+	SCIFB0_TXD_C_MARK, SCIFB2_TXD_C_MARK,
+
+	/* IPSR4 */
+	SSI_SDATA0_MARK, SCL0_B_MARK, SCL7_B_MARK, MSIOF2_SCK_C_MARK,
+	SSI_SCK1_MARK, SDA0_B_MARK, SDA7_B_MARK,
+	MSIOF2_SYNC_C_MARK, GLO_I0_D_MARK,
+	SSI_WS1_MARK, SCL1_B_MARK, SCL8_B_MARK,
+	MSIOF2_TXD_C_MARK, GLO_I1_D_MARK,
+	SSI_SDATA1_MARK, SDA1_B_MARK, SDA8_B_MARK, MSIOF2_RXD_C_MARK,
+	SSI_SCK2_MARK, SCL2_MARK, GPS_CLK_B_MARK, GLO_Q0_D_MARK, HSCK1_E_MARK,
+	SSI_WS2_MARK, SDA2_MARK, GPS_SIGN_B_MARK, RX2_E_MARK,
+	GLO_Q1_D_MARK, HCTS1_N_E_MARK,
+	SSI_SDATA2_MARK, GPS_MAG_B_MARK, TX2_E_MARK, HRTS1_N_E_MARK,
+	SSI_SCK34_MARK, SSI_WS34_MARK, SSI_SDATA3_MARK,
+	SSI_SCK4_MARK, GLO_SS_D_MARK,
+	SSI_WS4_MARK, GLO_RFON_D_MARK,
+	SSI_SDATA4_MARK, MSIOF2_SCK_D_MARK,
+	SSI_SCK5_MARK, MSIOF1_SCK_C_MARK, TS_SDATA0_MARK, GLO_I0_MARK,
+	MSIOF2_SYNC_D_MARK, VI1_R2_B_MARK,
+
+	/* IPSR5 */
+	SSI_WS5_MARK, MSIOF1_SYNC_C_MARK, TS_SCK0_MARK, GLO_I1_MARK,
+	MSIOF2_TXD_D_MARK, VI1_R3_B_MARK,
+	SSI_SDATA5_MARK, MSIOF1_TXD_C_MARK, TS_SDEN0_MARK, GLO_Q0_MARK,
+	MSIOF2_SS1_D_MARK, VI1_R4_B_MARK,
+	SSI_SCK6_MARK, MSIOF1_RXD_C_MARK, TS_SPSYNC0_MARK, GLO_Q1_MARK,
+	MSIOF2_RXD_D_MARK, VI1_R5_B_MARK,
+	SSI_WS6_MARK, GLO_SCLK_MARK, MSIOF2_SS2_D_MARK, VI1_R6_B_MARK,
+	SSI_SDATA6_MARK, STP_IVCXO27_0_B_MARK, GLO_SDATA_MARK, VI1_R7_B_MARK,
+	SSI_SCK78_MARK, STP_ISCLK_0_B_MARK, GLO_SS_MARK,
+	SSI_WS78_MARK, TX0_D_MARK, STP_ISD_0_B_MARK, GLO_RFON_MARK,
+	SSI_SDATA7_MARK, RX0_D_MARK, STP_ISEN_0_B_MARK,
+	SSI_SDATA8_MARK, TX1_D_MARK, STP_ISSYNC_0_B_MARK,
+	SSI_SCK9_MARK, RX1_D_MARK, GLO_SCLK_D_MARK,
+	SSI_WS9_MARK, TX3_D_MARK, CAN0_TX_D_MARK, GLO_SDATA_D_MARK,
+	SSI_SDATA9_MARK, RX3_D_MARK, CAN0_RX_D_MARK,
+
+	/* IPSR6 */
+	AUDIO_CLKB_MARK, STP_OPWM_0_B_MARK, MSIOF1_SCK_B_MARK,
+	SCIF_CLK_MARK, BPFCLK_E_MARK,
+	AUDIO_CLKC_MARK, SCIFB0_SCK_C_MARK, MSIOF1_SYNC_B_MARK, RX2_MARK,
+	SCIFA2_RXD_MARK, FMIN_E_MARK,
+	AUDIO_CLKOUT_MARK, MSIOF1_SS1_B_MARK, TX2_MARK, SCIFA2_TXD_MARK,
+	IRQ0_MARK, SCIFB1_RXD_D_MARK, INTC_IRQ0_N_MARK,
+	IRQ1_MARK, SCIFB1_SCK_C_MARK, INTC_IRQ1_N_MARK,
+	IRQ2_MARK, SCIFB1_TXD_D_MARK, INTC_IRQ2_N_MARK,
+	IRQ3_MARK, SCL4_C_MARK, MSIOF2_TXD_E_MARK, INTC_IRQ3_N_MARK,
+	IRQ4_MARK, HRX1_C_MARK, SDA4_C_MARK,
+	MSIOF2_RXD_E_MARK, INTC_IRQ4_N_MARK,
+	IRQ5_MARK, HTX1_C_MARK, SCL1_E_MARK, MSIOF2_SCK_E_MARK,
+	IRQ6_MARK, HSCK1_C_MARK, MSIOF1_SS2_B_MARK,
+	SDA1_E_MARK, MSIOF2_SYNC_E_MARK,
+	IRQ7_MARK, HCTS1_N_C_MARK, MSIOF1_TXD_B_MARK,
+	GPS_CLK_C_MARK, GPS_CLK_D_MARK,
+	IRQ8_MARK, HRTS1_N_C_MARK, MSIOF1_RXD_B_MARK,
+	GPS_SIGN_C_MARK, GPS_SIGN_D_MARK,
+
+	/* IPSR7 */
+	IRQ9_MARK, DU1_DOTCLKIN_B_MARK, CAN_CLK_D_MARK, GPS_MAG_C_MARK,
+	SCIF_CLK_B_MARK, GPS_MAG_D_MARK,
+	DU1_DR0_MARK, LCDOUT0_MARK, VI1_DATA0_B_MARK, TX0_B_MARK,
+	SCIFA0_TXD_B_MARK, MSIOF2_SCK_B_MARK,
+	DU1_DR1_MARK, LCDOUT1_MARK, VI1_DATA1_B_MARK, RX0_B_MARK,
+	SCIFA0_RXD_B_MARK, MSIOF2_SYNC_B_MARK,
+	DU1_DR2_MARK, LCDOUT2_MARK, SSI_SCK0129_B_MARK,
+	DU1_DR3_MARK, LCDOUT3_MARK, SSI_WS0129_B_MARK,
+	DU1_DR4_MARK, LCDOUT4_MARK, SSI_SDATA0_B_MARK,
+	DU1_DR5_MARK, LCDOUT5_MARK, SSI_SCK1_B_MARK,
+	DU1_DR6_MARK, LCDOUT6_MARK, SSI_WS1_B_MARK,
+	DU1_DR7_MARK, LCDOUT7_MARK, SSI_SDATA1_B_MARK,
+	DU1_DG0_MARK, LCDOUT8_MARK, VI1_DATA2_B_MARK, TX1_B_MARK,
+	SCIFA1_TXD_B_MARK, MSIOF2_SS1_B_MARK,
+	DU1_DG1_MARK, LCDOUT9_MARK, VI1_DATA3_B_MARK, RX1_B_MARK,
+	SCIFA1_RXD_B_MARK, MSIOF2_SS2_B_MARK,
+	DU1_DG2_MARK, LCDOUT10_MARK, VI1_DATA4_B_MARK, SCIF1_SCK_B_MARK,
+	SCIFA1_SCK_MARK, SSI_SCK78_B_MARK,
+
+	/* IPSR8 */
+	DU1_DG3_MARK, LCDOUT11_MARK, VI1_DATA5_B_MARK, SSI_WS78_B_MARK,
+	DU1_DG4_MARK, LCDOUT12_MARK, VI1_DATA6_B_MARK, HRX0_B_MARK,
+	SCIFB2_RXD_B_MARK, SSI_SDATA7_B_MARK,
+	DU1_DG5_MARK, LCDOUT13_MARK, VI1_DATA7_B_MARK, HCTS0_N_B_MARK,
+	SCIFB2_TXD_B_MARK, SSI_SDATA8_B_MARK,
+	DU1_DG6_MARK, LCDOUT14_MARK, HRTS0_N_B_MARK,
+	SCIFB2_CTS_N_B_MARK, SSI_SCK9_B_MARK,
+	DU1_DG7_MARK, LCDOUT15_MARK, HTX0_B_MARK,
+	SCIFB2_RTS_N_B_MARK, SSI_WS9_B_MARK,
+	DU1_DB0_MARK, LCDOUT16_MARK, VI1_CLK_B_MARK, TX2_B_MARK,
+	SCIFA2_TXD_B_MARK, MSIOF2_TXD_B_MARK,
+	DU1_DB1_MARK, LCDOUT17_MARK, VI1_HSYNC_N_B_MARK, RX2_B_MARK,
+	SCIFA2_RXD_B_MARK, MSIOF2_RXD_B_MARK,
+	DU1_DB2_MARK, LCDOUT18_MARK, VI1_VSYNC_N_B_MARK, SCIF2_SCK_B_MARK,
+	SCIFA2_SCK_MARK, SSI_SDATA9_B_MARK,
+	DU1_DB3_MARK, LCDOUT19_MARK, VI1_CLKENB_B_MARK,
+	DU1_DB4_MARK, LCDOUT20_MARK, VI1_FIELD_B_MARK, CAN1_RX_MARK,
+	DU1_DB5_MARK, LCDOUT21_MARK, TX3_MARK, SCIFA3_TXD_MARK, CAN1_TX_MARK,
+
+	/* IPSR9 */
+	DU1_DB6_MARK, LCDOUT22_MARK, SCL3_C_MARK, RX3_MARK, SCIFA3_RXD_MARK,
+	DU1_DB7_MARK, LCDOUT23_MARK, SDA3_C_MARK,
+	SCIF3_SCK_MARK, SCIFA3_SCK_MARK,
+	DU1_DOTCLKIN_MARK, QSTVA_QVS_MARK,
+	DU1_DOTCLKOUT0_MARK, QCLK_MARK,
+	DU1_DOTCLKOUT1_MARK, QSTVB_QVE_MARK, CAN0_TX_MARK,
+	TX3_B_MARK, SCL2_B_MARK, PWM4_MARK,
+	DU1_EXHSYNC_DU1_HSYNC_MARK, QSTH_QHS_MARK,
+	DU1_EXVSYNC_DU1_VSYNC_MARK, QSTB_QHE_MARK,
+	DU1_EXODDF_DU1_ODDF_DISP_CDE_MARK, QCPV_QDE_MARK,
+	CAN0_RX_MARK, RX3_B_MARK, SDA2_B_MARK,
+	DU1_DISP_MARK, QPOLA_MARK,
+	DU1_CDE_MARK, QPOLB_MARK, PWM4_B_MARK,
+	VI0_CLKENB_MARK, TX4_MARK, SCIFA4_TXD_MARK, TS_SDATA0_D_MARK,
+	VI0_FIELD_MARK, RX4_MARK, SCIFA4_RXD_MARK, TS_SCK0_D_MARK,
+	VI0_HSYNC_N_MARK, TX5_MARK, SCIFA5_TXD_MARK, TS_SDEN0_D_MARK,
+	VI0_VSYNC_N_MARK, RX5_MARK, SCIFA5_RXD_MARK, TS_SPSYNC0_D_MARK,
+	VI0_DATA3_VI0_B3_MARK, SCIF3_SCK_B_MARK, SCIFA3_SCK_B_MARK,
+	VI0_G0_MARK, SCL8_MARK, STP_IVCXO27_0_C_MARK, SCL4_MARK,
+	HCTS2_N_MARK, SCIFB2_CTS_N_MARK, ATAWR1_N_MARK,
+
+	/* IPSR10 */
+	VI0_G1_MARK, SDA8_MARK, STP_ISCLK_0_C_MARK, SDA4_MARK,
+	HRTS2_N_MARK, SCIFB2_RTS_N_MARK, ATADIR1_N_MARK,
+	VI0_G2_MARK, VI2_HSYNC_N_MARK, STP_ISD_0_C_MARK, SCL3_B_MARK,
+	HSCK2_MARK, SCIFB2_SCK_MARK, ATARD1_N_MARK,
+	VI0_G3_MARK, VI2_VSYNC_N_MARK, STP_ISEN_0_C_MARK, SDA3_B_MARK,
+	HRX2_MARK, SCIFB2_RXD_MARK, ATACS01_N_MARK,
+	VI0_G4_MARK, VI2_CLKENB_MARK, STP_ISSYNC_0_C_MARK,
+	HTX2_MARK, SCIFB2_TXD_MARK, SCIFB0_SCK_D_MARK,
+	VI0_G5_MARK, VI2_FIELD_MARK, STP_OPWM_0_C_MARK, FMCLK_D_MARK,
+	CAN0_TX_E_MARK, HTX1_D_MARK, SCIFB0_TXD_D_MARK,
+	VI0_G6_MARK, VI2_CLK_MARK, BPFCLK_D_MARK,
+	VI0_G7_MARK, VI2_DATA0_MARK, FMIN_D_MARK,
+	VI0_R0_MARK, VI2_DATA1_MARK, GLO_I0_B_MARK,
+	TS_SDATA0_C_MARK, ATACS11_N_MARK,
+	VI0_R1_MARK, VI2_DATA2_MARK, GLO_I1_B_MARK,
+	TS_SCK0_C_MARK, ATAG1_N_MARK,
+	VI0_R2_MARK, VI2_DATA3_MARK, GLO_Q0_B_MARK, TS_SDEN0_C_MARK,
+	VI0_R3_MARK, VI2_DATA4_MARK, GLO_Q1_B_MARK, TS_SPSYNC0_C_MARK,
+	VI0_R4_MARK, VI2_DATA5_MARK, GLO_SCLK_B_MARK, TX0_C_MARK, SCL1_D_MARK,
+
+	/* IPSR11 */
+	VI0_R5_MARK, VI2_DATA6_MARK, GLO_SDATA_B_MARK, RX0_C_MARK, SDA1_D_MARK,
+	VI0_R6_MARK, VI2_DATA7_MARK, GLO_SS_B_MARK, TX1_C_MARK, SCL4_B_MARK,
+	VI0_R7_MARK, GLO_RFON_B_MARK, RX1_C_MARK, CAN0_RX_E_MARK,
+	SDA4_B_MARK, HRX1_D_MARK, SCIFB0_RXD_D_MARK,
+	VI1_HSYNC_N_MARK, AVB_RXD0_MARK, TS_SDATA0_B_MARK,
+	TX4_B_MARK, SCIFA4_TXD_B_MARK,
+	VI1_VSYNC_N_MARK, AVB_RXD1_MARK, TS_SCK0_B_MARK,
+	RX4_B_MARK, SCIFA4_RXD_B_MARK,
+	VI1_CLKENB_MARK, AVB_RXD2_MARK, TS_SDEN0_B_MARK,
+	VI1_FIELD_MARK, AVB_RXD3_MARK, TS_SPSYNC0_B_MARK,
+	VI1_CLK_MARK, AVB_RXD4_MARK, VI1_DATA0_MARK, AVB_RXD5_MARK,
+	VI1_DATA1_MARK, AVB_RXD6_MARK, VI1_DATA2_MARK, AVB_RXD7_MARK,
+	VI1_DATA3_MARK, AVB_RX_ER_MARK, VI1_DATA4_MARK, AVB_MDIO_MARK,
+	VI1_DATA5_MARK, AVB_RX_DV_MARK, VI1_DATA6_MARK, AVB_MAGIC_MARK,
+	VI1_DATA7_MARK, AVB_MDC_MARK,
+	ETH_MDIO_MARK, AVB_RX_CLK_MARK, SCL2_C_MARK,
+	ETH_CRS_DV_MARK, AVB_LINK_MARK, SDA2_C_MARK,
+
+	/* IPSR12 */
+	ETH_RX_ER_MARK, AVB_CRS_MARK, SCL3_MARK, SCL7_MARK,
+	ETH_RXD0_MARK, AVB_PHY_INT_MARK, SDA3_MARK, SDA7_MARK,
+	ETH_RXD1_MARK, AVB_GTXREFCLK_MARK, CAN0_TX_C_MARK,
+	SCL2_D_MARK, MSIOF1_RXD_E_MARK,
+	ETH_LINK_MARK, AVB_TXD0_MARK, CAN0_RX_C_MARK,
+	SDA2_D_MARK, MSIOF1_SCK_E_MARK,
+	ETH_REFCLK_MARK, AVB_TXD1_MARK, SCIFA3_RXD_B_MARK,
+	CAN1_RX_C_MARK, MSIOF1_SYNC_E_MARK,
+	ETH_TXD1_MARK, AVB_TXD2_MARK, SCIFA3_TXD_B_MARK,
+	CAN1_TX_C_MARK, MSIOF1_TXD_E_MARK,
+	ETH_TX_EN_MARK, AVB_TXD3_MARK, TCLK1_B_MARK, CAN_CLK_B_MARK,
+	ETH_MAGIC_MARK, AVB_TXD4_MARK, IETX_C_MARK,
+	ETH_TXD0_MARK, AVB_TXD5_MARK, IECLK_C_MARK,
+	ETH_MDC_MARK, AVB_TXD6_MARK, IERX_C_MARK,
+	STP_IVCXO27_0_MARK, AVB_TXD7_MARK, SCIFB2_TXD_D_MARK,
+	ADIDATA_B_MARK, MSIOF0_SYNC_C_MARK,
+	STP_ISCLK_0_MARK, AVB_TX_EN_MARK, SCIFB2_RXD_D_MARK,
+	ADICS_SAMP_B_MARK, MSIOF0_SCK_C_MARK,
+
+	/* IPSR13 */
+	STP_ISD_0_MARK, AVB_TX_ER_MARK, SCIFB2_SCK_C_MARK,
+	ADICLK_B_MARK, MSIOF0_SS1_C_MARK,
+	STP_ISEN_0_MARK, AVB_TX_CLK_MARK, ADICHS0_B_MARK, MSIOF0_SS2_C_MARK,
+	STP_ISSYNC_0_MARK, AVB_COL_MARK, ADICHS1_B_MARK, MSIOF0_RXD_C_MARK,
+	STP_OPWM_0_MARK, AVB_GTX_CLK_MARK, PWM0_B_MARK,
+	ADICHS2_B_MARK, MSIOF0_TXD_C_MARK,
+	SD0_CLK_MARK, SPCLK_B_MARK, SD0_CMD_MARK, MOSI_IO0_B_MARK,
+	SD0_DATA0_MARK, MISO_IO1_B_MARK, SD0_DATA1_MARK, IO2_B_MARK,
+	SD0_DATA2_MARK, IO3_B_MARK, SD0_DATA3_MARK, SSL_B_MARK,
+	SD0_CD_MARK, MMC_D6_B_MARK, SIM0_RST_B_MARK, CAN0_RX_F_MARK,
+	SCIFA5_TXD_B_MARK, TX3_C_MARK,
+	SD0_WP_MARK, MMC_D7_B_MARK, SIM0_D_B_MARK, CAN0_TX_F_MARK,
+	SCIFA5_RXD_B_MARK, RX3_C_MARK,
+	SD1_CMD_MARK, REMOCON_B_MARK, SD1_DATA0_MARK, SPEEDIN_B_MARK,
+	SD1_DATA1_MARK, IETX_B_MARK, SD1_DATA2_MARK, IECLK_B_MARK,
+	SD1_DATA3_MARK, IERX_B_MARK,
+	SD1_CD_MARK, PWM0_MARK, TPU_TO0_MARK, SCL1_C_MARK,
+
+	/* IPSR14 */
+	SD1_WP_MARK, PWM1_B_MARK, SDA1_C_MARK,
+	SD2_CLK_MARK, MMC_CLK_MARK, SD2_CMD_MARK, MMC_CMD_MARK,
+	SD2_DATA0_MARK, MMC_D0_MARK, SD2_DATA1_MARK, MMC_D1_MARK,
+	SD2_DATA2_MARK, MMC_D2_MARK, SD2_DATA3_MARK, MMC_D3_MARK,
+	SD2_CD_MARK, MMC_D4_MARK, SCL8_C_MARK, TX5_B_MARK, SCIFA5_TXD_C_MARK,
+	SD2_WP_MARK, MMC_D5_MARK, SDA8_C_MARK, RX5_B_MARK, SCIFA5_RXD_C_MARK,
+	MSIOF0_SCK_MARK, RX2_C_MARK, ADIDATA_MARK,
+	VI1_CLK_C_MARK, VI1_G0_B_MARK,
+	MSIOF0_SYNC_MARK, TX2_C_MARK, ADICS_SAMP_MARK,
+	VI1_CLKENB_C_MARK, VI1_G1_B_MARK,
+	MSIOF0_TXD_MARK, ADICLK_MARK, VI1_FIELD_C_MARK, VI1_G2_B_MARK,
+	MSIOF0_RXD_MARK, ADICHS0_MARK, VI1_DATA0_C_MARK, VI1_G3_B_MARK,
+	MSIOF0_SS1_MARK, MMC_D6_MARK, ADICHS1_MARK, TX0_E_MARK,
+	VI1_HSYNC_N_C_MARK, SCL7_C_MARK, VI1_G4_B_MARK,
+	MSIOF0_SS2_MARK, MMC_D7_MARK, ADICHS2_MARK, RX0_E_MARK,
+	VI1_VSYNC_N_C_MARK, SDA7_C_MARK, VI1_G5_B_MARK,
+
+	/* IPSR15 */
+	SIM0_RST_MARK, IETX_MARK, CAN1_TX_D_MARK,
+	SIM0_CLK_MARK, IECLK_MARK, CAN_CLK_C_MARK,
+	SIM0_D_MARK, IERX_MARK, CAN1_RX_D_MARK,
+	GPS_CLK_MARK, DU1_DOTCLKIN_C_MARK, AUDIO_CLKB_B_MARK,
+	PWM5_B_MARK, SCIFA3_TXD_C_MARK,
+	GPS_SIGN_MARK, TX4_C_MARK, SCIFA4_TXD_C_MARK, PWM5_MARK,
+	VI1_G6_B_MARK, SCIFA3_RXD_C_MARK,
+	GPS_MAG_MARK, RX4_C_MARK, SCIFA4_RXD_C_MARK, PWM6_MARK,
+	VI1_G7_B_MARK, SCIFA3_SCK_C_MARK,
+	HCTS0_N_MARK, SCIFB0_CTS_N_MARK, GLO_I0_C_MARK,
+	TCLK1_MARK, VI1_DATA1_C_MARK,
+	HRTS0_N_MARK, SCIFB0_RTS_N_MARK, GLO_I1_C_MARK, VI1_DATA2_C_MARK,
+	HSCK0_MARK, SCIFB0_SCK_MARK, GLO_Q0_C_MARK, CAN_CLK_MARK,
+	TCLK2_MARK, VI1_DATA3_C_MARK,
+	HRX0_MARK, SCIFB0_RXD_MARK, GLO_Q1_C_MARK,
+	CAN0_RX_B_MARK, VI1_DATA4_C_MARK,
+	HTX0_MARK, SCIFB0_TXD_MARK, GLO_SCLK_C_MARK,
+	CAN0_TX_B_MARK, VI1_DATA5_C_MARK,
+
+	/* IPSR16 */
+	HRX1_MARK, SCIFB1_RXD_MARK, VI1_R0_B_MARK,
+	GLO_SDATA_C_MARK, VI1_DATA6_C_MARK,
+	HTX1_MARK, SCIFB1_TXD_MARK, VI1_R1_B_MARK,
+	GLO_SS_C_MARK, VI1_DATA7_C_MARK,
+	HSCK1_MARK, SCIFB1_SCK_MARK, MLB_CK_MARK, GLO_RFON_C_MARK,
+	HCTS1_N_MARK, SCIFB1_CTS_N_MARK, MLB_SIG_MARK, CAN1_TX_B_MARK,
+	HRTS1_N_MARK, SCIFB1_RTS_N_MARK, MLB_DAT_MARK, CAN1_RX_B_MARK,
+	PINMUX_MARK_END,
+};
+
+static const u16 pinmux_data[] = {
+	PINMUX_DATA_GP_ALL(), /* PINMUX_DATA(GP_M_N_DATA, GP_M_N_FN...), */
+
+	PINMUX_DATA(EX_CS0_N_MARK, FN_EX_CS0_N),
+	PINMUX_DATA(RD_N_MARK, FN_RD_N),
+	PINMUX_DATA(AUDIO_CLKA_MARK, FN_AUDIO_CLKA),
+	PINMUX_DATA(VI0_CLK_MARK, FN_VI0_CLK),
+	PINMUX_DATA(VI0_DATA0_VI0_B0_MARK, FN_VI0_DATA0_VI0_B0),
+	PINMUX_DATA(VI0_DATA1_VI0_B1_MARK, FN_VI0_DATA1_VI0_B1),
+	PINMUX_DATA(VI0_DATA2_VI0_B2_MARK, FN_VI0_DATA2_VI0_B2),
+	PINMUX_DATA(VI0_DATA4_VI0_B4_MARK, FN_VI0_DATA4_VI0_B4),
+	PINMUX_DATA(VI0_DATA5_VI0_B5_MARK, FN_VI0_DATA5_VI0_B5),
+	PINMUX_DATA(VI0_DATA6_VI0_B6_MARK, FN_VI0_DATA6_VI0_B6),
+	PINMUX_DATA(VI0_DATA7_VI0_B7_MARK, FN_VI0_DATA7_VI0_B7),
+	PINMUX_DATA(USB0_PWEN_MARK, FN_USB0_PWEN),
+	PINMUX_DATA(USB0_OVC_MARK, FN_USB0_OVC),
+	PINMUX_DATA(USB1_PWEN_MARK, FN_USB1_PWEN),
+	PINMUX_DATA(USB1_OVC_MARK, FN_USB1_OVC),
+	PINMUX_DATA(DU0_DOTCLKIN_MARK, FN_DU0_DOTCLKIN),
+
+	/* IPSR0 */
+	PINMUX_IPSR_DATA(IP0_0, D0),
+	PINMUX_IPSR_DATA(IP0_1, D1),
+	PINMUX_IPSR_DATA(IP0_2, D2),
+	PINMUX_IPSR_DATA(IP0_3, D3),
+	PINMUX_IPSR_DATA(IP0_4, D4),
+	PINMUX_IPSR_DATA(IP0_5, D5),
+	PINMUX_IPSR_DATA(IP0_6, D6),
+	PINMUX_IPSR_DATA(IP0_7, D7),
+	PINMUX_IPSR_DATA(IP0_8, D8),
+	PINMUX_IPSR_DATA(IP0_9, D9),
+	PINMUX_IPSR_DATA(IP0_10, D10),
+	PINMUX_IPSR_DATA(IP0_11, D11),
+	PINMUX_IPSR_DATA(IP0_12, D12),
+	PINMUX_IPSR_DATA(IP0_13, D13),
+	PINMUX_IPSR_DATA(IP0_14, D14),
+	PINMUX_IPSR_DATA(IP0_15, D15),
+	PINMUX_IPSR_DATA(IP0_18_16, A0),
+	PINMUX_IPSR_MODSEL_DATA(IP0_18_16, ATAWR0_N_C, SEL_LBS_2),
+	PINMUX_IPSR_MODSEL_DATA(IP0_18_16, MSIOF0_SCK_B, SEL_SOF0_1),
+	PINMUX_IPSR_MODSEL_DATA(IP0_18_16, SCL0_C, SEL_IIC0_2),
+	PINMUX_IPSR_DATA(IP0_18_16, PWM2_B),
+	PINMUX_IPSR_DATA(IP0_20_19, A1),
+	PINMUX_IPSR_MODSEL_DATA(IP0_20_19, MSIOF0_SYNC_B, SEL_SOF0_1),
+	PINMUX_IPSR_DATA(IP0_22_21, A2),
+	PINMUX_IPSR_MODSEL_DATA(IP0_22_21, MSIOF0_SS1_B, SEL_SOF0_1),
+	PINMUX_IPSR_DATA(IP0_24_23, A3),
+	PINMUX_IPSR_MODSEL_DATA(IP0_24_23, MSIOF0_SS2_B, SEL_SOF0_1),
+	PINMUX_IPSR_DATA(IP0_26_25, A4),
+	PINMUX_IPSR_MODSEL_DATA(IP0_26_25, MSIOF0_TXD_B, SEL_SOF0_1),
+	PINMUX_IPSR_DATA(IP0_28_27, A5),
+	PINMUX_IPSR_MODSEL_DATA(IP0_28_27, MSIOF0_RXD_B, SEL_SOF0_1),
+	PINMUX_IPSR_DATA(IP0_30_29, A6),
+	PINMUX_IPSR_MODSEL_DATA(IP0_30_29, MSIOF1_SCK, SEL_SOF1_0),
+
+	/* IPSR1 */
+	PINMUX_IPSR_DATA(IP1_1_0, A7),
+	PINMUX_IPSR_MODSEL_DATA(IP1_1_0, MSIOF1_SYNC, SEL_SOF1_0),
+	PINMUX_IPSR_DATA(IP1_3_2, A8),
+	PINMUX_IPSR_MODSEL_DATA(IP1_3_2, MSIOF1_SS1, SEL_SOF1_0),
+	PINMUX_IPSR_MODSEL_DATA(IP1_3_2, SCL0, SEL_IIC0_0),
+	PINMUX_IPSR_DATA(IP1_5_4, A9),
+	PINMUX_IPSR_MODSEL_DATA(IP1_5_4, MSIOF1_SS2, SEL_SOF1_0),
+	PINMUX_IPSR_MODSEL_DATA(IP1_5_4, SDA0, SEL_IIC0_0),
+	PINMUX_IPSR_DATA(IP1_7_6, A10),
+	PINMUX_IPSR_MODSEL_DATA(IP1_7_6, MSIOF1_TXD, SEL_SOF1_0),
+	PINMUX_IPSR_MODSEL_DATA(IP1_7_6, MSIOF1_TXD_D, SEL_SOF1_3),
+	PINMUX_IPSR_DATA(IP1_10_8, A11),
+	PINMUX_IPSR_MODSEL_DATA(IP1_10_8, MSIOF1_RXD, SEL_SOF1_0),
+	PINMUX_IPSR_MODSEL_DATA(IP1_10_8, SCL3_D, SEL_IIC3_3),
+	PINMUX_IPSR_MODSEL_DATA(IP1_10_8, MSIOF1_RXD_D, SEL_SOF1_3),
+	PINMUX_IPSR_DATA(IP1_13_11, A12),
+	PINMUX_IPSR_MODSEL_DATA(IP1_13_11, FMCLK, SEL_FM_0),
+	PINMUX_IPSR_MODSEL_DATA(IP1_13_11, SDA3_D, SEL_IIC3_3),
+	PINMUX_IPSR_MODSEL_DATA(IP1_13_11, MSIOF1_SCK_D, SEL_SOF1_3),
+	PINMUX_IPSR_DATA(IP1_16_14, A13),
+	PINMUX_IPSR_MODSEL_DATA(IP1_16_14, ATAG0_N_C, SEL_LBS_2),
+	PINMUX_IPSR_MODSEL_DATA(IP1_16_14, BPFCLK, SEL_FM_0),
+	PINMUX_IPSR_MODSEL_DATA(IP1_16_14, MSIOF1_SS1_D, SEL_SOF1_3),
+	PINMUX_IPSR_DATA(IP1_19_17, A14),
+	PINMUX_IPSR_MODSEL_DATA(IP1_19_17, ATADIR0_N_C, SEL_LBS_2),
+	PINMUX_IPSR_MODSEL_DATA(IP1_19_17, FMIN, SEL_FM_0),
+	PINMUX_IPSR_MODSEL_DATA(IP1_19_17, FMIN_C, SEL_FM_2),
+	PINMUX_IPSR_MODSEL_DATA(IP1_19_17, MSIOF1_SYNC_D, SEL_SOF1_3),
+	PINMUX_IPSR_DATA(IP1_22_20, A15),
+	PINMUX_IPSR_MODSEL_DATA(IP1_22_20, BPFCLK_C, SEL_FM_2),
+	PINMUX_IPSR_DATA(IP1_25_23, A16),
+	PINMUX_IPSR_MODSEL_DATA(IP1_25_23, DREQ2_B, SEL_LBS_1),
+	PINMUX_IPSR_MODSEL_DATA(IP1_25_23, FMCLK_C, SEL_FM_2),
+	PINMUX_IPSR_MODSEL_DATA(IP1_25_23, SCIFA1_SCK_B, SEL_SCIFA1_1),
+	PINMUX_IPSR_DATA(IP1_28_26, A17),
+	PINMUX_IPSR_MODSEL_DATA(IP1_28_26, DACK2_B, SEL_LBS_1),
+	PINMUX_IPSR_MODSEL_DATA(IP1_28_26, SDA0_C, SEL_IIC0_2),
+	PINMUX_IPSR_DATA(IP1_31_29, A18),
+	PINMUX_IPSR_MODSEL_DATA(IP1_31_29, DREQ1, SEL_LBS_0),
+	PINMUX_IPSR_MODSEL_DATA(IP1_31_29, SCIFA1_RXD_C, SEL_SCIFA1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP1_31_29, SCIFB1_RXD_C, SEL_SCIFB1_2),
+
+	/* IPSR2 */
+	PINMUX_IPSR_DATA(IP2_2_0, A19),
+	PINMUX_IPSR_DATA(IP2_2_0, DACK1),
+	PINMUX_IPSR_MODSEL_DATA(IP2_2_0, SCIFA1_TXD_C, SEL_SCIFA1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP2_2_0, SCIFB1_TXD_C, SEL_SCIFB1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP2_2_0, SCIFB1_SCK_B, SEL_SCIFB1_0),
+	PINMUX_IPSR_DATA(IP2_2_0, A20),
+	PINMUX_IPSR_MODSEL_DATA(IP2_4_3, SPCLK, SEL_QSP_0),
+	PINMUX_IPSR_DATA(IP2_6_5, A21),
+	PINMUX_IPSR_MODSEL_DATA(IP2_6_5, ATAWR0_N_B, SEL_LBS_1),
+	PINMUX_IPSR_MODSEL_DATA(IP2_6_5, MOSI_IO0, SEL_QSP_0),
+	PINMUX_IPSR_DATA(IP2_9_7, A22),
+	PINMUX_IPSR_MODSEL_DATA(IP2_9_7, MISO_IO1, SEL_QSP_0),
+	PINMUX_IPSR_MODSEL_DATA(IP2_9_7, FMCLK_B, SEL_FM_1),
+	PINMUX_IPSR_MODSEL_DATA(IP2_9_7, TX0, SEL_SCIF0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP2_9_7, SCIFA0_TXD, SEL_SCFA_0),
+	PINMUX_IPSR_DATA(IP2_12_10, A23),
+	PINMUX_IPSR_MODSEL_DATA(IP2_12_10, IO2, SEL_QSP_0),
+	PINMUX_IPSR_MODSEL_DATA(IP2_12_10, BPFCLK_B, SEL_FM_1),
+	PINMUX_IPSR_MODSEL_DATA(IP2_12_10, RX0, SEL_SCIF0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP2_12_10, SCIFA0_RXD, SEL_SCFA_0),
+	PINMUX_IPSR_DATA(IP2_15_13, A24),
+	PINMUX_IPSR_MODSEL_DATA(IP2_15_13, DREQ2, SEL_LBS_0),
+	PINMUX_IPSR_MODSEL_DATA(IP2_15_13, IO3, SEL_QSP_0),
+	PINMUX_IPSR_MODSEL_DATA(IP2_15_13, TX1, SEL_SCIF1_0),
+	PINMUX_IPSR_MODSEL_DATA(IP2_15_13, SCIFA1_TXD, SEL_SCIFA1_0),
+	PINMUX_IPSR_DATA(IP2_18_16, A25),
+	PINMUX_IPSR_MODSEL_DATA(IP2_18_16, DACK2, SEL_LBS_0),
+	PINMUX_IPSR_MODSEL_DATA(IP2_18_16, SSL, SEL_QSP_0),
+	PINMUX_IPSR_MODSEL_DATA(IP2_18_16, DREQ1_C, SEL_LBS_2),
+	PINMUX_IPSR_MODSEL_DATA(IP2_18_16, RX1, SEL_SCIF1_0),
+	PINMUX_IPSR_MODSEL_DATA(IP2_18_16, SCIFA1_RXD, SEL_SCIFA1_0),
+	PINMUX_IPSR_DATA(IP2_20_19, CS0_N),
+	PINMUX_IPSR_MODSEL_DATA(IP2_20_19, ATAG0_N_B, SEL_LBS_1),
+	PINMUX_IPSR_MODSEL_DATA(IP2_20_19, SCL1, SEL_IIC1_0),
+	PINMUX_IPSR_DATA(IP2_22_21, CS1_N_A26),
+	PINMUX_IPSR_MODSEL_DATA(IP2_22_21, ATADIR0_N_B, SEL_LBS_1),
+	PINMUX_IPSR_MODSEL_DATA(IP2_22_21, SDA1, SEL_IIC1_0),
+	PINMUX_IPSR_DATA(IP2_24_23, EX_CS1_N),
+	PINMUX_IPSR_MODSEL_DATA(IP2_24_23, MSIOF2_SCK, SEL_SOF2_0),
+	PINMUX_IPSR_DATA(IP2_26_25, EX_CS2_N),
+	PINMUX_IPSR_MODSEL_DATA(IP2_26_25, ATAWR0_N, SEL_LBS_0),
+	PINMUX_IPSR_MODSEL_DATA(IP2_26_25, MSIOF2_SYNC, SEL_SOF2_0),
+	PINMUX_IPSR_DATA(IP2_29_27, EX_CS3_N),
+	PINMUX_IPSR_MODSEL_DATA(IP2_29_27, ATADIR0_N, SEL_LBS_0),
+	PINMUX_IPSR_MODSEL_DATA(IP2_29_27, MSIOF2_TXD, SEL_SOF2_0),
+	PINMUX_IPSR_MODSEL_DATA(IP2_29_27, ATAG0_N, SEL_LBS_0),
+	PINMUX_IPSR_DATA(IP2_29_27, EX_WAIT1),
+
+	/* IPSR3 */
+	PINMUX_IPSR_DATA(IP3_2_0, EX_CS4_N),
+	PINMUX_IPSR_MODSEL_DATA(IP3_2_0, ATARD0_N, SEL_LBS_0),
+	PINMUX_IPSR_MODSEL_DATA(IP3_2_0, MSIOF2_RXD, SEL_SOF2_0),
+	PINMUX_IPSR_DATA(IP3_2_0, EX_WAIT2),
+	PINMUX_IPSR_DATA(IP3_5_3, EX_CS5_N),
+	PINMUX_IPSR_DATA(IP3_5_3, ATACS00_N),
+	PINMUX_IPSR_MODSEL_DATA(IP3_5_3, MSIOF2_SS1, SEL_SOF2_0),
+	PINMUX_IPSR_MODSEL_DATA(IP3_5_3, HRX1_B, SEL_HSCIF1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP3_5_3, SCIFB1_RXD_B, SEL_SCIFB1_1),
+	PINMUX_IPSR_DATA(IP3_5_3, PWM1),
+	PINMUX_IPSR_DATA(IP3_5_3, TPU_TO1),
+	PINMUX_IPSR_DATA(IP3_8_6, BS_N),
+	PINMUX_IPSR_DATA(IP3_8_6, ATACS10_N),
+	PINMUX_IPSR_MODSEL_DATA(IP3_8_6, MSIOF2_SS2, SEL_SOF2_0),
+	PINMUX_IPSR_MODSEL_DATA(IP3_8_6, HTX1_B, SEL_HSCIF1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP3_8_6, SCIFB1_TXD_B, SEL_SCIFB1_1),
+	PINMUX_IPSR_DATA(IP3_8_6, PWM2),
+	PINMUX_IPSR_DATA(IP3_8_6, TPU_TO2),
+	PINMUX_IPSR_DATA(IP3_11_9, RD_WR_N),
+	PINMUX_IPSR_MODSEL_DATA(IP3_11_9, HRX2_B, SEL_HSCIF2_1),
+	PINMUX_IPSR_MODSEL_DATA(IP3_11_9, FMIN_B, SEL_FM_1),
+	PINMUX_IPSR_MODSEL_DATA(IP3_11_9, SCIFB0_RXD_B, SEL_SCIFB_1),
+	PINMUX_IPSR_MODSEL_DATA(IP3_11_9, DREQ1_D, SEL_LBS_1),
+	PINMUX_IPSR_DATA(IP3_13_12, WE0_N),
+	PINMUX_IPSR_MODSEL_DATA(IP3_13_12, HCTS2_N_B, SEL_HSCIF2_1),
+	PINMUX_IPSR_MODSEL_DATA(IP3_13_12, SCIFB0_TXD_B, SEL_SCIFB_1),
+	PINMUX_IPSR_DATA(IP3_15_14, WE1_N),
+	PINMUX_IPSR_MODSEL_DATA(IP3_15_14, ATARD0_N_B, SEL_LBS_1),
+	PINMUX_IPSR_MODSEL_DATA(IP3_15_14, HTX2_B, SEL_HSCIF2_1),
+	PINMUX_IPSR_MODSEL_DATA(IP3_15_14, SCIFB0_RTS_N_B, SEL_SCIFB_1),
+	PINMUX_IPSR_DATA(IP3_17_16, EX_WAIT0),
+	PINMUX_IPSR_MODSEL_DATA(IP3_17_16, HRTS2_N_B, SEL_HSCIF2_1),
+	PINMUX_IPSR_MODSEL_DATA(IP3_17_16, SCIFB0_CTS_N_B, SEL_SCIFB_1),
+	PINMUX_IPSR_DATA(IP3_19_18, DREQ0),
+	PINMUX_IPSR_DATA(IP3_19_18, PWM3),
+	PINMUX_IPSR_DATA(IP3_19_18, TPU_TO3),
+	PINMUX_IPSR_DATA(IP3_21_20, DACK0),
+	PINMUX_IPSR_DATA(IP3_21_20, DRACK0),
+	PINMUX_IPSR_MODSEL_DATA(IP3_21_20, REMOCON, SEL_RCN_0),
+	PINMUX_IPSR_MODSEL_DATA(IP3_24_22, SPEEDIN, SEL_RSP_0),
+	PINMUX_IPSR_MODSEL_DATA(IP3_24_22, HSCK0_C, SEL_HSCIF0_2),
+	PINMUX_IPSR_MODSEL_DATA(IP3_24_22, HSCK2_C, SEL_HSCIF2_2),
+	PINMUX_IPSR_MODSEL_DATA(IP3_24_22, SCIFB0_SCK_B, SEL_SCIFB_1),
+	PINMUX_IPSR_MODSEL_DATA(IP3_24_22, SCIFB2_SCK_B, SEL_SCIFB2_1),
+	PINMUX_IPSR_MODSEL_DATA(IP3_24_22, DREQ2_C, SEL_LBS_2),
+	PINMUX_IPSR_MODSEL_DATA(IP3_30_28, HTX2_C, SEL_HSCIF2_2),
+	PINMUX_IPSR_MODSEL_DATA(IP3_27_25, SSI_SCK0129, SEL_SSI0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP3_27_25, HRX0_C, SEL_HSCIF0_2),
+	PINMUX_IPSR_MODSEL_DATA(IP3_27_25, HRX2_C, SEL_HSCIF2_2),
+	PINMUX_IPSR_MODSEL_DATA(IP3_27_25, SCIFB0_RXD_C, SEL_SCIFB_2),
+	PINMUX_IPSR_MODSEL_DATA(IP3_27_25, SCIFB2_RXD_C, SEL_SCIFB2_2),
+	PINMUX_IPSR_MODSEL_DATA(IP3_30_28, SSI_WS0129, SEL_SSI0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP3_30_28, HTX0_C, SEL_HSCIF0_2),
+	PINMUX_IPSR_MODSEL_DATA(IP3_30_28, HTX2_C, SEL_HSCIF2_2),
+	PINMUX_IPSR_MODSEL_DATA(IP3_30_28, SCIFB0_TXD_C, SEL_SCIFB_2),
+	PINMUX_IPSR_MODSEL_DATA(IP3_30_28, SCIFB2_TXD_C, SEL_SCIFB2_2),
+
+	/* IPSR4 */
+	PINMUX_IPSR_MODSEL_DATA(IP4_1_0, SSI_SDATA0, SEL_SSI0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP4_1_0, SCL0_B, SEL_IIC0_1),
+	PINMUX_IPSR_MODSEL_DATA(IP4_1_0, SCL7_B, SEL_IIC7_1),
+	PINMUX_IPSR_MODSEL_DATA(IP4_1_0, MSIOF2_SCK_C, SEL_SOF2_2),
+	PINMUX_IPSR_MODSEL_DATA(IP4_4_2, SSI_SCK1, SEL_SSI1_0),
+	PINMUX_IPSR_MODSEL_DATA(IP4_4_2, SDA0_B, SEL_IIC0_1),
+	PINMUX_IPSR_MODSEL_DATA(IP4_4_2, SDA7_B, SEL_IIC7_1),
+	PINMUX_IPSR_MODSEL_DATA(IP4_4_2, MSIOF2_SYNC_C, SEL_SOF2_2),
+	PINMUX_IPSR_MODSEL_DATA(IP4_4_2, GLO_I0_D, SEL_GPS_3),
+	PINMUX_IPSR_MODSEL_DATA(IP4_7_5, SSI_WS1, SEL_SSI1_0),
+	PINMUX_IPSR_MODSEL_DATA(IP4_7_5, SCL1_B, SEL_IIC1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP4_7_5, SCL8_B, SEL_IIC8_1),
+	PINMUX_IPSR_MODSEL_DATA(IP4_7_5, MSIOF2_TXD_C, SEL_SOF2_2),
+	PINMUX_IPSR_MODSEL_DATA(IP4_7_5, GLO_I1_D, SEL_GPS_3),
+	PINMUX_IPSR_MODSEL_DATA(IP4_9_8, SSI_SDATA1, SEL_SSI1_0),
+	PINMUX_IPSR_MODSEL_DATA(IP4_9_8, SDA1_B, SEL_IIC1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP4_9_8, SDA8_B, SEL_IIC8_1),
+	PINMUX_IPSR_MODSEL_DATA(IP4_9_8, MSIOF2_RXD_C, SEL_SOF2_2),
+	PINMUX_IPSR_DATA(IP4_12_10, SSI_SCK2),
+	PINMUX_IPSR_MODSEL_DATA(IP4_12_10, SCL2, SEL_IIC2_0),
+	PINMUX_IPSR_MODSEL_DATA(IP4_12_10, GPS_CLK_B, SEL_GPS_1),
+	PINMUX_IPSR_MODSEL_DATA(IP4_12_10, GLO_Q0_D, SEL_GPS_3),
+	PINMUX_IPSR_DATA(IP4_15_13, SSI_WS2),
+	PINMUX_IPSR_MODSEL_DATA(IP4_15_13, SDA2, SEL_IIC2_0),
+	PINMUX_IPSR_MODSEL_DATA(IP4_15_13, GPS_SIGN_B, SEL_GPS_1),
+	PINMUX_IPSR_MODSEL_DATA(IP4_15_13, RX2_E, SEL_SCIF2_4),
+	PINMUX_IPSR_MODSEL_DATA(IP4_15_13, GLO_Q1_D, SEL_GPS_3),
+	PINMUX_IPSR_DATA(IP4_18_16, SSI_SDATA2),
+	PINMUX_IPSR_MODSEL_DATA(IP4_18_16, GPS_MAG_B, SEL_GPS_1),
+	PINMUX_IPSR_MODSEL_DATA(IP4_18_16, TX2_E, SEL_SCIF2_4),
+	PINMUX_IPSR_DATA(IP4_19, SSI_SCK34),
+	PINMUX_IPSR_DATA(IP4_20, SSI_WS34),
+	PINMUX_IPSR_DATA(IP4_21, SSI_SDATA3),
+	PINMUX_IPSR_DATA(IP4_23_22, SSI_SCK4),
+	PINMUX_IPSR_MODSEL_DATA(IP4_23_22, GLO_SS_D, SEL_GPS_3),
+	PINMUX_IPSR_DATA(IP4_25_24, SSI_WS4),
+	PINMUX_IPSR_MODSEL_DATA(IP4_25_24, GLO_RFON_D, SEL_GPS_3),
+	PINMUX_IPSR_DATA(IP4_27_26, SSI_SDATA4),
+	PINMUX_IPSR_MODSEL_DATA(IP4_27_26, MSIOF2_SCK_D, SEL_SOF2_3),
+	PINMUX_IPSR_DATA(IP4_30_28, SSI_SCK5),
+	PINMUX_IPSR_MODSEL_DATA(IP4_30_28, MSIOF1_SCK_C, SEL_SOF1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP4_30_28, TS_SDATA0, SEL_TSIF0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP4_30_28, GLO_I0, SEL_GPS_0),
+	PINMUX_IPSR_MODSEL_DATA(IP4_30_28, MSIOF2_SYNC_D, SEL_SOF2_3),
+	PINMUX_IPSR_DATA(IP4_30_28, VI1_R2_B),
+
+	/* IPSR5 */
+	PINMUX_IPSR_DATA(IP5_2_0, SSI_WS5),
+	PINMUX_IPSR_MODSEL_DATA(IP5_2_0, MSIOF1_SYNC_C, SEL_SOF1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP5_2_0, TS_SCK0, SEL_TSIF0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP5_2_0, GLO_I1, SEL_GPS_0),
+	PINMUX_IPSR_MODSEL_DATA(IP5_2_0, MSIOF2_TXD_D, SEL_SOF2_3),
+	PINMUX_IPSR_DATA(IP5_2_0, VI1_R3_B),
+	PINMUX_IPSR_DATA(IP5_5_3, SSI_SDATA5),
+	PINMUX_IPSR_MODSEL_DATA(IP5_5_3, MSIOF1_TXD_C, SEL_SOF1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP5_5_3, TS_SDEN0, SEL_TSIF0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP5_5_3, GLO_Q0, SEL_GPS_0),
+	PINMUX_IPSR_MODSEL_DATA(IP5_5_3, MSIOF2_SS1_D, SEL_SOF2_3),
+	PINMUX_IPSR_DATA(IP5_5_3, VI1_R4_B),
+	PINMUX_IPSR_DATA(IP5_8_6, SSI_SCK6),
+	PINMUX_IPSR_MODSEL_DATA(IP5_8_6, MSIOF1_RXD_C, SEL_SOF1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP5_8_6, TS_SPSYNC0, SEL_TSIF0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP5_8_6, GLO_Q1, SEL_GPS_0),
+	PINMUX_IPSR_MODSEL_DATA(IP5_8_6, MSIOF2_RXD_D, SEL_SOF2_3),
+	PINMUX_IPSR_DATA(IP5_8_6, VI1_R5_B),
+	PINMUX_IPSR_DATA(IP5_11_9, SSI_WS6),
+	PINMUX_IPSR_MODSEL_DATA(IP5_11_9, GLO_SCLK, SEL_GPS_0),
+	PINMUX_IPSR_MODSEL_DATA(IP5_11_9, MSIOF2_SS2_D, SEL_SOF2_3),
+	PINMUX_IPSR_DATA(IP5_11_9, VI1_R6_B),
+	PINMUX_IPSR_DATA(IP5_14_12, SSI_SDATA6),
+	PINMUX_IPSR_MODSEL_DATA(IP5_14_12, STP_IVCXO27_0_B, SEL_SSP_1),
+	PINMUX_IPSR_MODSEL_DATA(IP5_14_12, GLO_SDATA, SEL_GPS_0),
+	PINMUX_IPSR_DATA(IP5_14_12, VI1_R7_B),
+	PINMUX_IPSR_MODSEL_DATA(IP5_16_15, SSI_SCK78, SEL_SSI7_0),
+	PINMUX_IPSR_MODSEL_DATA(IP5_16_15, STP_ISCLK_0_B, SEL_SSP_1),
+	PINMUX_IPSR_MODSEL_DATA(IP5_16_15, GLO_SS, SEL_GPS_0),
+	PINMUX_IPSR_MODSEL_DATA(IP5_19_17, SSI_WS78, SEL_SSI7_0),
+	PINMUX_IPSR_MODSEL_DATA(IP5_19_17, TX0_D, SEL_SCIF0_3),
+	PINMUX_IPSR_MODSEL_DATA(IP5_19_17, STP_ISD_0_B, SEL_SSP_1),
+	PINMUX_IPSR_MODSEL_DATA(IP5_19_17, GLO_RFON, SEL_GPS_0),
+	PINMUX_IPSR_MODSEL_DATA(IP5_21_20, SSI_SDATA7, SEL_SSI7_0),
+	PINMUX_IPSR_MODSEL_DATA(IP5_21_20, RX0_D, SEL_SCIF0_3),
+	PINMUX_IPSR_MODSEL_DATA(IP5_21_20, STP_ISEN_0_B, SEL_SSP_1),
+	PINMUX_IPSR_MODSEL_DATA(IP5_23_22, SSI_SDATA8, SEL_SSI8_0),
+	PINMUX_IPSR_MODSEL_DATA(IP5_23_22, TX1_D, SEL_SCIF1_3),
+	PINMUX_IPSR_MODSEL_DATA(IP5_23_22, STP_ISSYNC_0_B, SEL_SSP_1),
+	PINMUX_IPSR_MODSEL_DATA(IP5_25_24, SSI_SCK9, SEL_SSI9_0),
+	PINMUX_IPSR_MODSEL_DATA(IP5_25_24, RX1_D, SEL_SCIF1_3),
+	PINMUX_IPSR_MODSEL_DATA(IP5_25_24, GLO_SCLK_D, SEL_GPS_3),
+	PINMUX_IPSR_MODSEL_DATA(IP5_28_26, SSI_WS9, SEL_SSI9_0),
+	PINMUX_IPSR_MODSEL_DATA(IP5_28_26, TX3_D, SEL_SCIF3_3),
+	PINMUX_IPSR_MODSEL_DATA(IP5_28_26, CAN0_TX_D, SEL_CAN0_3),
+	PINMUX_IPSR_MODSEL_DATA(IP5_28_26, GLO_SDATA_D, SEL_GPS_3),
+	PINMUX_IPSR_MODSEL_DATA(IP5_31_29, SSI_SDATA9, SEL_SSI9_0),
+	PINMUX_IPSR_MODSEL_DATA(IP5_31_29, RX3_D, SEL_SCIF3_3),
+	PINMUX_IPSR_MODSEL_DATA(IP5_31_29, CAN0_RX_D, SEL_CAN0_3),
+
+	/* IPSR6 */
+	PINMUX_IPSR_MODSEL_DATA(IP6_2_0, AUDIO_CLKB, SEL_ADG_0),
+	PINMUX_IPSR_MODSEL_DATA(IP6_2_0, STP_OPWM_0_B, SEL_SSP_1),
+	PINMUX_IPSR_MODSEL_DATA(IP6_2_0, MSIOF1_SCK_B, SEL_SOF1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP6_2_0, SCIF_CLK, SEL_SCIF_0),
+	PINMUX_IPSR_MODSEL_DATA(IP6_2_0, BPFCLK_E, SEL_FM_4),
+	PINMUX_IPSR_DATA(IP6_5_3, AUDIO_CLKC),
+	PINMUX_IPSR_MODSEL_DATA(IP6_5_3, SCIFB0_SCK_C, SEL_SCIFB_2),
+	PINMUX_IPSR_MODSEL_DATA(IP6_5_3, MSIOF1_SYNC_B, SEL_SOF1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP6_5_3, RX2, SEL_SCIF2_0),
+	PINMUX_IPSR_MODSEL_DATA(IP6_5_3, SCIFA2_RXD, SEL_SCIFA2_0),
+	PINMUX_IPSR_MODSEL_DATA(IP6_5_3, FMIN_E, SEL_FM_4),
+	PINMUX_IPSR_DATA(IP6_7_6, AUDIO_CLKOUT),
+	PINMUX_IPSR_MODSEL_DATA(IP6_7_6, MSIOF1_SS1_B, SEL_SOF1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP6_5_3, TX2, SEL_SCIF2_0),
+	PINMUX_IPSR_MODSEL_DATA(IP6_7_6, SCIFA2_TXD, SEL_SCIFA2_0),
+	PINMUX_IPSR_DATA(IP6_9_8, IRQ0),
+	PINMUX_IPSR_MODSEL_DATA(IP6_9_8, SCIFB1_RXD_D, SEL_SCIFB1_3),
+	PINMUX_IPSR_DATA(IP6_9_8, INTC_IRQ0_N),
+	PINMUX_IPSR_DATA(IP6_11_10, IRQ1),
+	PINMUX_IPSR_MODSEL_DATA(IP6_11_10, SCIFB1_SCK_C, SEL_SCIFB1_2),
+	PINMUX_IPSR_DATA(IP6_11_10, INTC_IRQ1_N),
+	PINMUX_IPSR_DATA(IP6_13_12, IRQ2),
+	PINMUX_IPSR_MODSEL_DATA(IP6_13_12, SCIFB1_TXD_D, SEL_SCIFB1_3),
+	PINMUX_IPSR_DATA(IP6_13_12, INTC_IRQ2_N),
+	PINMUX_IPSR_DATA(IP6_15_14, IRQ3),
+	PINMUX_IPSR_MODSEL_DATA(IP6_15_14, SCL4_C, SEL_IIC4_2),
+	PINMUX_IPSR_MODSEL_DATA(IP6_15_14, MSIOF2_TXD_E, SEL_SOF2_4),
+	PINMUX_IPSR_DATA(IP6_15_14, INTC_IRQ4_N),
+	PINMUX_IPSR_DATA(IP6_18_16, IRQ4),
+	PINMUX_IPSR_MODSEL_DATA(IP6_18_16, HRX1_C, SEL_HSCIF1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP6_18_16, SDA4_C, SEL_IIC4_2),
+	PINMUX_IPSR_MODSEL_DATA(IP6_18_16, MSIOF2_RXD_E, SEL_SOF2_4),
+	PINMUX_IPSR_DATA(IP6_18_16, INTC_IRQ4_N),
+	PINMUX_IPSR_DATA(IP6_20_19, IRQ5),
+	PINMUX_IPSR_MODSEL_DATA(IP6_20_19, HTX1_C, SEL_HSCIF1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP6_20_19, SCL1_E, SEL_IIC1_4),
+	PINMUX_IPSR_MODSEL_DATA(IP6_20_19, MSIOF2_SCK_E, SEL_SOF2_4),
+	PINMUX_IPSR_DATA(IP6_23_21, IRQ6),
+	PINMUX_IPSR_MODSEL_DATA(IP6_23_21, HSCK1_C, SEL_HSCIF1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP6_23_21, MSIOF1_SS2_B, SEL_SOF1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP6_23_21, SDA1_E, SEL_IIC1_4),
+	PINMUX_IPSR_MODSEL_DATA(IP6_23_21, MSIOF2_SYNC_E, SEL_SOF2_4),
+	PINMUX_IPSR_DATA(IP6_26_24, IRQ7),
+	PINMUX_IPSR_MODSEL_DATA(IP6_26_24, HCTS1_N_C, SEL_HSCIF1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP6_26_24, MSIOF1_TXD_B, SEL_SOF1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP6_26_24, GPS_CLK_C, SEL_GPS_2),
+	PINMUX_IPSR_MODSEL_DATA(IP6_26_24, GPS_CLK_D, SEL_GPS_3),
+	PINMUX_IPSR_DATA(IP6_29_27, IRQ8),
+	PINMUX_IPSR_MODSEL_DATA(IP6_29_27, HRTS1_N_C, SEL_HSCIF1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP6_29_27, MSIOF1_RXD_B, SEL_SOF1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP6_29_27, GPS_SIGN_C, SEL_GPS_2),
+	PINMUX_IPSR_MODSEL_DATA(IP6_29_27, GPS_SIGN_D, SEL_GPS_3),
+
+	/* IPSR7 */
+	PINMUX_IPSR_DATA(IP7_2_0, IRQ9),
+	PINMUX_IPSR_MODSEL_DATA(IP7_2_0, DU1_DOTCLKIN_B, SEL_DIS_1),
+	PINMUX_IPSR_MODSEL_DATA(IP7_2_0, CAN_CLK_D, SEL_CANCLK_3),
+	PINMUX_IPSR_MODSEL_DATA(IP7_2_0, GPS_MAG_C, SEL_GPS_2),
+	PINMUX_IPSR_MODSEL_DATA(IP7_2_0, SCIF_CLK_B, SEL_SCIF_1),
+	PINMUX_IPSR_MODSEL_DATA(IP7_2_0, GPS_MAG_D, SEL_GPS_3),
+	PINMUX_IPSR_DATA(IP7_5_3, DU1_DR0),
+	PINMUX_IPSR_DATA(IP7_5_3, LCDOUT0),
+	PINMUX_IPSR_MODSEL_DATA(IP7_5_3, VI1_DATA0_B, SEL_VI1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP7_5_3, TX0_B, SEL_SCIF0_1),
+	PINMUX_IPSR_MODSEL_DATA(IP7_5_3, SCIFA0_TXD_B, SEL_SCFA_1),
+	PINMUX_IPSR_MODSEL_DATA(IP7_5_3, MSIOF2_SCK_B, SEL_SOF2_1),
+	PINMUX_IPSR_DATA(IP7_8_6, DU1_DR1),
+	PINMUX_IPSR_DATA(IP7_8_6, LCDOUT1),
+	PINMUX_IPSR_MODSEL_DATA(IP7_8_6, VI1_DATA1_B, SEL_VI1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP7_8_6, RX0_B, SEL_SCIF0_1),
+	PINMUX_IPSR_MODSEL_DATA(IP7_8_6, SCIFA0_RXD_B, SEL_SCFA_1),
+	PINMUX_IPSR_MODSEL_DATA(IP7_8_6, MSIOF2_SYNC_B, SEL_SOF2_1),
+	PINMUX_IPSR_DATA(IP7_10_9, DU1_DR2),
+	PINMUX_IPSR_DATA(IP7_10_9, LCDOUT2),
+	PINMUX_IPSR_MODSEL_DATA(IP7_10_9, SSI_SCK0129_B, SEL_SSI0_1),
+	PINMUX_IPSR_DATA(IP7_12_11, DU1_DR3),
+	PINMUX_IPSR_DATA(IP7_12_11, LCDOUT3),
+	PINMUX_IPSR_MODSEL_DATA(IP7_12_11, SSI_WS0129_B, SEL_SSI0_1),
+	PINMUX_IPSR_DATA(IP7_14_13, DU1_DR4),
+	PINMUX_IPSR_DATA(IP7_14_13, LCDOUT4),
+	PINMUX_IPSR_MODSEL_DATA(IP7_14_13, SSI_SDATA0_B, SEL_SSI0_1),
+	PINMUX_IPSR_DATA(IP7_16_15, DU1_DR5),
+	PINMUX_IPSR_DATA(IP7_16_15, LCDOUT5),
+	PINMUX_IPSR_MODSEL_DATA(IP7_16_15, SSI_SCK1_B, SEL_SSI1_1),
+	PINMUX_IPSR_DATA(IP7_18_17, DU1_DR6),
+	PINMUX_IPSR_DATA(IP7_18_17, LCDOUT6),
+	PINMUX_IPSR_MODSEL_DATA(IP7_18_17, SSI_WS1_B, SEL_SSI1_1),
+	PINMUX_IPSR_DATA(IP7_20_19, DU1_DR7),
+	PINMUX_IPSR_DATA(IP7_20_19, LCDOUT7),
+	PINMUX_IPSR_MODSEL_DATA(IP7_20_19, SSI_SDATA1_B, SEL_SSI1_1),
+	PINMUX_IPSR_DATA(IP7_23_21, DU1_DG0),
+	PINMUX_IPSR_DATA(IP7_23_21, LCDOUT8),
+	PINMUX_IPSR_MODSEL_DATA(IP7_23_21, VI1_DATA2_B, SEL_VI1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP7_23_21, TX1_B, SEL_SCIF1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP7_23_21, SCIFA1_TXD_B, SEL_SCIFA1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP7_23_21, MSIOF2_SS1_B, SEL_SOF2_1),
+	PINMUX_IPSR_DATA(IP7_26_24, DU1_DG1),
+	PINMUX_IPSR_DATA(IP7_26_24, LCDOUT9),
+	PINMUX_IPSR_MODSEL_DATA(IP7_26_24, VI1_DATA3_B, SEL_VI1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP7_26_24, RX1_B, SEL_SCIF1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP7_26_24, SCIFA1_RXD_B, SEL_SCIFA1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP7_26_24, MSIOF2_SS2_B, SEL_SOF2_1),
+	PINMUX_IPSR_DATA(IP7_29_27, DU1_DG2),
+	PINMUX_IPSR_DATA(IP7_29_27, LCDOUT10),
+	PINMUX_IPSR_MODSEL_DATA(IP7_29_27, VI1_DATA4_B, SEL_VI1_1),
+	PINMUX_IPSR_DATA(IP7_29_27, SCIF1_SCK_B),
+	PINMUX_IPSR_MODSEL_DATA(IP7_29_27, SCIFA1_SCK, SEL_SCIFA1_0),
+	PINMUX_IPSR_MODSEL_DATA(IP7_29_27, SSI_SCK78_B, SEL_SSI7_1),
+
+	/* IPSR8 */
+	PINMUX_IPSR_DATA(IP8_2_0, DU1_DG3),
+	PINMUX_IPSR_DATA(IP8_2_0, LCDOUT11),
+	PINMUX_IPSR_MODSEL_DATA(IP8_2_0, VI1_DATA5_B, SEL_VI1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP8_2_0, SSI_WS78_B, SEL_SSI7_1),
+	PINMUX_IPSR_DATA(IP8_5_3, DU1_DG4),
+	PINMUX_IPSR_DATA(IP8_5_3, LCDOUT12),
+	PINMUX_IPSR_MODSEL_DATA(IP8_5_3, VI1_DATA6_B, SEL_VI1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP8_5_3, HRX0_B, SEL_HSCIF0_1),
+	PINMUX_IPSR_MODSEL_DATA(IP8_5_3, SCIFB2_RXD_B, SEL_SCIFB2_1),
+	PINMUX_IPSR_MODSEL_DATA(IP8_5_3, SSI_SDATA7_B, SEL_SSI7_1),
+	PINMUX_IPSR_DATA(IP8_8_6, DU1_DG5),
+	PINMUX_IPSR_DATA(IP8_8_6, LCDOUT13),
+	PINMUX_IPSR_MODSEL_DATA(IP8_8_6, VI1_DATA7_B, SEL_VI1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP8_8_6, HCTS0_N_B, SEL_HSCIF0_1),
+	PINMUX_IPSR_MODSEL_DATA(IP8_8_6, SCIFB2_TXD_B, SEL_SCIFB2_1),
+	PINMUX_IPSR_MODSEL_DATA(IP8_8_6, SSI_SDATA8_B, SEL_SSI8_1),
+	PINMUX_IPSR_DATA(IP8_11_9, DU1_DG6),
+	PINMUX_IPSR_DATA(IP8_11_9, LCDOUT14),
+	PINMUX_IPSR_MODSEL_DATA(IP8_11_9, HRTS0_N_B, SEL_HSCIF0_1),
+	PINMUX_IPSR_MODSEL_DATA(IP8_11_9, SCIFB2_CTS_N_B, SEL_SCIFB2_1),
+	PINMUX_IPSR_MODSEL_DATA(IP8_11_9, SSI_SCK9_B, SEL_SSI9_1),
+	PINMUX_IPSR_DATA(IP8_14_12, DU1_DG7),
+	PINMUX_IPSR_DATA(IP8_14_12, LCDOUT15),
+	PINMUX_IPSR_MODSEL_DATA(IP8_14_12, HTX0_B, SEL_HSCIF0_1),
+	PINMUX_IPSR_MODSEL_DATA(IP8_14_12, SCIFB2_RTS_N_B, SEL_SCIFB2_1),
+	PINMUX_IPSR_MODSEL_DATA(IP8_14_12, SSI_WS9_B, SEL_SSI9_1),
+	PINMUX_IPSR_DATA(IP8_17_15, DU1_DB0),
+	PINMUX_IPSR_DATA(IP8_17_15, LCDOUT16),
+	PINMUX_IPSR_MODSEL_DATA(IP8_17_15, VI1_CLK_B, SEL_VI1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP8_17_15, TX2_B, SEL_SCIF2_1),
+	PINMUX_IPSR_MODSEL_DATA(IP8_17_15, SCIFA2_TXD_B, SEL_SCIFA2_1),
+	PINMUX_IPSR_MODSEL_DATA(IP8_17_15, MSIOF2_TXD_B, SEL_SOF2_1),
+	PINMUX_IPSR_DATA(IP8_20_18, DU1_DB1),
+	PINMUX_IPSR_DATA(IP8_20_18, LCDOUT17),
+	PINMUX_IPSR_MODSEL_DATA(IP8_20_18, VI1_HSYNC_N_B, SEL_VI1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP8_20_18, RX2_B, SEL_SCIF2_1),
+	PINMUX_IPSR_MODSEL_DATA(IP8_20_18, SCIFA2_RXD_B, SEL_SCIFA2_1),
+	PINMUX_IPSR_MODSEL_DATA(IP8_20_18, MSIOF2_RXD_B, SEL_SOF2_1),
+	PINMUX_IPSR_DATA(IP8_23_21, DU1_DB2),
+	PINMUX_IPSR_DATA(IP8_23_21, LCDOUT18),
+	PINMUX_IPSR_MODSEL_DATA(IP8_23_21, VI1_VSYNC_N_B, SEL_VI1_1),
+	PINMUX_IPSR_DATA(IP8_23_21, SCIF2_SCK_B),
+	PINMUX_IPSR_MODSEL_DATA(IP8_23_21, SCIFA2_SCK, SEL_SCIFA2_1),
+	PINMUX_IPSR_MODSEL_DATA(IP8_23_21, SSI_SDATA9_B, SEL_SSI9_1),
+	PINMUX_IPSR_DATA(IP8_25_24, DU1_DB3),
+	PINMUX_IPSR_DATA(IP8_25_24, LCDOUT19),
+	PINMUX_IPSR_MODSEL_DATA(IP8_25_24, VI1_CLKENB_B, SEL_VI1_1),
+	PINMUX_IPSR_DATA(IP8_27_26, DU1_DB4),
+	PINMUX_IPSR_DATA(IP8_27_26, LCDOUT20),
+	PINMUX_IPSR_MODSEL_DATA(IP8_27_26, VI1_FIELD_B, SEL_VI1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP8_27_26, CAN1_RX, SEL_CAN1_0),
+	PINMUX_IPSR_DATA(IP8_30_28, DU1_DB5),
+	PINMUX_IPSR_DATA(IP8_30_28, LCDOUT21),
+	PINMUX_IPSR_MODSEL_DATA(IP8_30_28, TX3, SEL_SCIF3_0),
+	PINMUX_IPSR_MODSEL_DATA(IP8_30_28, SCIFA3_TXD, SEL_SCIFA3_0),
+	PINMUX_IPSR_MODSEL_DATA(IP8_30_28, CAN1_TX, SEL_CAN1_0),
+
+	/* IPSR9 */
+	PINMUX_IPSR_DATA(IP9_2_0, DU1_DB6),
+	PINMUX_IPSR_DATA(IP9_2_0, LCDOUT22),
+	PINMUX_IPSR_MODSEL_DATA(IP9_2_0, SCL3_C, SEL_IIC3_2),
+	PINMUX_IPSR_MODSEL_DATA(IP9_2_0, RX3, SEL_SCIF3_0),
+	PINMUX_IPSR_MODSEL_DATA(IP9_2_0, SCIFA3_RXD, SEL_SCIFA3_0),
+	PINMUX_IPSR_DATA(IP9_5_3, DU1_DB7),
+	PINMUX_IPSR_DATA(IP9_5_3, LCDOUT23),
+	PINMUX_IPSR_MODSEL_DATA(IP9_5_3, SDA3_C, SEL_IIC3_2),
+	PINMUX_IPSR_MODSEL_DATA(IP9_5_3, SCIF3_SCK, SEL_SCIF3_0),
+	PINMUX_IPSR_MODSEL_DATA(IP9_5_3, SCIFA3_SCK, SEL_SCIFA3_0),
+	PINMUX_IPSR_MODSEL_DATA(IP9_6, DU1_DOTCLKIN, SEL_DIS_0),
+	PINMUX_IPSR_DATA(IP9_6, QSTVA_QVS),
+	PINMUX_IPSR_DATA(IP9_7, DU1_DOTCLKOUT0),
+	PINMUX_IPSR_DATA(IP9_7, QCLK),
+	PINMUX_IPSR_DATA(IP9_10_8, DU1_DOTCLKOUT1),
+	PINMUX_IPSR_DATA(IP9_10_8, QSTVB_QVE),
+	PINMUX_IPSR_MODSEL_DATA(IP9_10_8, CAN0_TX, SEL_CAN0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP9_10_8, TX3_B, SEL_SCIF3_1),
+	PINMUX_IPSR_MODSEL_DATA(IP9_10_8, SCL2_B, SEL_IIC2_1),
+	PINMUX_IPSR_DATA(IP9_10_8, PWM4),
+	PINMUX_IPSR_DATA(IP9_11, DU1_EXHSYNC_DU1_HSYNC),
+	PINMUX_IPSR_DATA(IP9_11, QSTH_QHS),
+	PINMUX_IPSR_DATA(IP9_12, DU1_EXVSYNC_DU1_VSYNC),
+	PINMUX_IPSR_DATA(IP9_12, QSTB_QHE),
+	PINMUX_IPSR_DATA(IP9_15_13, DU1_EXODDF_DU1_ODDF_DISP_CDE),
+	PINMUX_IPSR_DATA(IP9_15_13, QCPV_QDE),
+	PINMUX_IPSR_MODSEL_DATA(IP9_15_13, CAN0_RX, SEL_CAN0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP9_15_13, RX3_B, SEL_SCIF3_1),
+	PINMUX_IPSR_MODSEL_DATA(IP9_15_13, SDA2_B, SEL_IIC2_1),
+	PINMUX_IPSR_DATA(IP9_16, DU1_DISP),
+	PINMUX_IPSR_DATA(IP9_16, QPOLA),
+	PINMUX_IPSR_DATA(IP9_18_17, DU1_CDE),
+	PINMUX_IPSR_DATA(IP9_18_17, QPOLB),
+	PINMUX_IPSR_DATA(IP9_18_17, PWM4_B),
+	PINMUX_IPSR_DATA(IP9_20_19, VI0_CLKENB),
+	PINMUX_IPSR_MODSEL_DATA(IP9_20_19, TX4, SEL_SCIF4_0),
+	PINMUX_IPSR_MODSEL_DATA(IP9_20_19, SCIFA4_TXD, SEL_SCIFA4_0),
+	PINMUX_IPSR_MODSEL_DATA(IP9_20_19, TS_SDATA0_D, SEL_TSIF0_3),
+	PINMUX_IPSR_DATA(IP9_22_21, VI0_FIELD),
+	PINMUX_IPSR_MODSEL_DATA(IP9_22_21, RX4, SEL_SCIF4_0),
+	PINMUX_IPSR_MODSEL_DATA(IP9_22_21, SCIFA4_RXD, SEL_SCIFA4_0),
+	PINMUX_IPSR_MODSEL_DATA(IP9_22_21, TS_SCK0_D, SEL_TSIF0_3),
+	PINMUX_IPSR_DATA(IP9_24_23, VI0_HSYNC_N),
+	PINMUX_IPSR_MODSEL_DATA(IP9_24_23, TX5, SEL_SCIF5_0),
+	PINMUX_IPSR_MODSEL_DATA(IP9_24_23, SCIFA5_TXD, SEL_SCIFA5_0),
+	PINMUX_IPSR_MODSEL_DATA(IP9_24_23, TS_SDEN0_D, SEL_TSIF0_3),
+	PINMUX_IPSR_DATA(IP9_26_25, VI0_VSYNC_N),
+	PINMUX_IPSR_MODSEL_DATA(IP9_26_25, RX5, SEL_SCIF5_0),
+	PINMUX_IPSR_MODSEL_DATA(IP9_26_25, SCIFA5_RXD, SEL_SCIFA5_0),
+	PINMUX_IPSR_MODSEL_DATA(IP9_26_25, TS_SPSYNC0_D, SEL_TSIF0_3),
+	PINMUX_IPSR_DATA(IP9_28_27, VI0_DATA3_VI0_B3),
+	PINMUX_IPSR_MODSEL_DATA(IP9_28_27, SCIF3_SCK_B, SEL_SCIF3_1),
+	PINMUX_IPSR_MODSEL_DATA(IP9_28_27, SCIFA3_SCK_B, SEL_SCIFA3_1),
+	PINMUX_IPSR_DATA(IP9_31_29, VI0_G0),
+	PINMUX_IPSR_MODSEL_DATA(IP9_31_29, SCL8, SEL_IIC8_0),
+	PINMUX_IPSR_MODSEL_DATA(IP9_31_29, STP_IVCXO27_0_C, SEL_SSP_2),
+	PINMUX_IPSR_MODSEL_DATA(IP9_31_29, SCL4, SEL_IIC4_0),
+	PINMUX_IPSR_MODSEL_DATA(IP9_31_29, HCTS2_N, SEL_HSCIF2_0),
+	PINMUX_IPSR_MODSEL_DATA(IP9_31_29, SCIFB2_CTS_N, SEL_SCIFB2_0),
+	PINMUX_IPSR_DATA(IP9_31_29, ATAWR1_N),
+
+	/* IPSR10 */
+	PINMUX_IPSR_DATA(IP10_2_0, VI0_G1),
+	PINMUX_IPSR_MODSEL_DATA(IP10_2_0, SDA8, SEL_IIC8_0),
+	PINMUX_IPSR_MODSEL_DATA(IP10_2_0, STP_ISCLK_0_C, SEL_SSP_2),
+	PINMUX_IPSR_MODSEL_DATA(IP10_2_0, SDA4, SEL_IIC4_0),
+	PINMUX_IPSR_MODSEL_DATA(IP10_2_0, HRTS2_N, SEL_HSCIF2_0),
+	PINMUX_IPSR_MODSEL_DATA(IP10_2_0, SCIFB2_RTS_N, SEL_SCIFB2_0),
+	PINMUX_IPSR_DATA(IP10_2_0, ATADIR1_N),
+	PINMUX_IPSR_DATA(IP10_5_3, VI0_G2),
+	PINMUX_IPSR_DATA(IP10_5_3, VI2_HSYNC_N),
+	PINMUX_IPSR_MODSEL_DATA(IP10_5_3, STP_ISD_0_C, SEL_SSP_2),
+	PINMUX_IPSR_MODSEL_DATA(IP10_5_3, SCL3_B, SEL_IIC3_1),
+	PINMUX_IPSR_MODSEL_DATA(IP10_5_3, HSCK2, SEL_HSCIF2_0),
+	PINMUX_IPSR_MODSEL_DATA(IP10_5_3, SCIFB2_SCK, SEL_SCIFB2_0),
+	PINMUX_IPSR_DATA(IP10_5_3, ATARD1_N),
+	PINMUX_IPSR_DATA(IP10_8_6, VI0_G3),
+	PINMUX_IPSR_DATA(IP10_8_6, VI2_VSYNC_N),
+	PINMUX_IPSR_MODSEL_DATA(IP10_8_6, STP_ISEN_0_C, SEL_SSP_2),
+	PINMUX_IPSR_MODSEL_DATA(IP10_8_6, SDA3_B, SEL_IIC3_1),
+	PINMUX_IPSR_MODSEL_DATA(IP10_8_6, HRX2, SEL_HSCIF2_0),
+	PINMUX_IPSR_MODSEL_DATA(IP10_8_6, SCIFB2_RXD, SEL_SCIFB2_0),
+	PINMUX_IPSR_DATA(IP10_8_6, ATACS01_N),
+	PINMUX_IPSR_DATA(IP10_11_9, VI0_G4),
+	PINMUX_IPSR_DATA(IP10_11_9, VI2_CLKENB),
+	PINMUX_IPSR_MODSEL_DATA(IP10_11_9, STP_ISSYNC_0_C, SEL_SSP_2),
+	PINMUX_IPSR_MODSEL_DATA(IP10_11_9, HTX2, SEL_HSCIF2_0),
+	PINMUX_IPSR_MODSEL_DATA(IP10_11_9, SCIFB2_TXD, SEL_SCIFB2_0),
+	PINMUX_IPSR_MODSEL_DATA(IP10_11_9, SCIFB0_SCK_D, SEL_SCIFB_3),
+	PINMUX_IPSR_DATA(IP10_14_12, VI0_G5),
+	PINMUX_IPSR_DATA(IP10_14_12, VI2_FIELD),
+	PINMUX_IPSR_MODSEL_DATA(IP10_14_12, STP_OPWM_0_C, SEL_SSP_2),
+	PINMUX_IPSR_MODSEL_DATA(IP10_14_12, FMCLK_D, SEL_FM_3),
+	PINMUX_IPSR_MODSEL_DATA(IP10_14_12, CAN0_TX_E, SEL_CAN0_4),
+	PINMUX_IPSR_MODSEL_DATA(IP10_14_12, HTX1_D, SEL_HSCIF1_3),
+	PINMUX_IPSR_MODSEL_DATA(IP10_14_12, SCIFB0_TXD_D, SEL_SCIFB_3),
+	PINMUX_IPSR_DATA(IP10_16_15, VI0_G6),
+	PINMUX_IPSR_DATA(IP10_16_15, VI2_CLK),
+	PINMUX_IPSR_MODSEL_DATA(IP10_16_15, BPFCLK_D, SEL_FM_3),
+	PINMUX_IPSR_DATA(IP10_18_17, VI0_G7),
+	PINMUX_IPSR_DATA(IP10_18_17, VI2_DATA0),
+	PINMUX_IPSR_MODSEL_DATA(IP10_18_17, FMIN_D, SEL_FM_3),
+	PINMUX_IPSR_DATA(IP10_21_19, VI0_R0),
+	PINMUX_IPSR_DATA(IP10_21_19, VI2_DATA1),
+	PINMUX_IPSR_MODSEL_DATA(IP10_21_19, GLO_I0_B, SEL_GPS_1),
+	PINMUX_IPSR_MODSEL_DATA(IP10_21_19, TS_SDATA0_C, SEL_TSIF0_2),
+	PINMUX_IPSR_DATA(IP10_21_19, ATACS11_N),
+	PINMUX_IPSR_DATA(IP10_24_22, VI0_R1),
+	PINMUX_IPSR_DATA(IP10_24_22, VI2_DATA2),
+	PINMUX_IPSR_MODSEL_DATA(IP10_24_22, GLO_I1_B, SEL_GPS_1),
+	PINMUX_IPSR_MODSEL_DATA(IP10_24_22, TS_SCK0_C, SEL_TSIF0_2),
+	PINMUX_IPSR_DATA(IP10_24_22, ATAG1_N),
+	PINMUX_IPSR_DATA(IP10_26_25, VI0_R2),
+	PINMUX_IPSR_DATA(IP10_26_25, VI2_DATA3),
+	PINMUX_IPSR_MODSEL_DATA(IP10_26_25, GLO_Q0_B, SEL_GPS_1),
+	PINMUX_IPSR_MODSEL_DATA(IP10_26_25, TS_SDEN0_C, SEL_TSIF0_2),
+	PINMUX_IPSR_DATA(IP10_28_27, VI0_R3),
+	PINMUX_IPSR_DATA(IP10_28_27, VI2_DATA4),
+	PINMUX_IPSR_MODSEL_DATA(IP10_28_27, GLO_Q1_B, SEL_GPS_1),
+	PINMUX_IPSR_MODSEL_DATA(IP10_28_27, TS_SPSYNC0_C, SEL_TSIF0_2),
+	PINMUX_IPSR_DATA(IP10_31_29, VI0_R4),
+	PINMUX_IPSR_DATA(IP10_31_29, VI2_DATA5),
+	PINMUX_IPSR_MODSEL_DATA(IP10_31_29, GLO_SCLK_B, SEL_GPS_1),
+	PINMUX_IPSR_MODSEL_DATA(IP10_31_29, TX0_C, SEL_SCIF0_2),
+	PINMUX_IPSR_MODSEL_DATA(IP10_31_29, SCL1_D, SEL_IIC1_3),
+
+	/* IPSR11 */
+	PINMUX_IPSR_DATA(IP11_2_0, VI0_R5),
+	PINMUX_IPSR_DATA(IP11_2_0, VI2_DATA6),
+	PINMUX_IPSR_MODSEL_DATA(IP11_2_0, GLO_SDATA_B, SEL_GPS_1),
+	PINMUX_IPSR_MODSEL_DATA(IP11_2_0, RX0_C, SEL_SCIF0_2),
+	PINMUX_IPSR_MODSEL_DATA(IP11_2_0, SDA1_D, SEL_IIC1_3),
+	PINMUX_IPSR_DATA(IP11_5_3, VI0_R6),
+	PINMUX_IPSR_DATA(IP11_5_3, VI2_DATA7),
+	PINMUX_IPSR_MODSEL_DATA(IP11_5_3, GLO_SS_B, SEL_GPS_1),
+	PINMUX_IPSR_MODSEL_DATA(IP11_5_3, TX1_C, SEL_SCIF1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP11_5_3, SCL4_B, SEL_IIC4_1),
+	PINMUX_IPSR_DATA(IP11_8_6, VI0_R7),
+	PINMUX_IPSR_MODSEL_DATA(IP11_8_6, GLO_RFON_B, SEL_GPS_1),
+	PINMUX_IPSR_MODSEL_DATA(IP11_8_6, RX1_C, SEL_SCIF1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP11_8_6, CAN0_RX_E, SEL_CAN0_4),
+	PINMUX_IPSR_MODSEL_DATA(IP11_8_6, SDA4_B, SEL_IIC4_1),
+	PINMUX_IPSR_MODSEL_DATA(IP11_8_6, HRX1_D, SEL_HSCIF1_3),
+	PINMUX_IPSR_MODSEL_DATA(IP11_8_6, SCIFB0_RXD_D, SEL_SCIFB_3),
+	PINMUX_IPSR_MODSEL_DATA(IP11_11_9, VI1_HSYNC_N, SEL_VI1_0),
+	PINMUX_IPSR_DATA(IP11_11_9, AVB_RXD0),
+	PINMUX_IPSR_MODSEL_DATA(IP11_11_9, TS_SDATA0_B, SEL_TSIF0_1),
+	PINMUX_IPSR_MODSEL_DATA(IP11_11_9, TX4_B, SEL_SCIF4_1),
+	PINMUX_IPSR_MODSEL_DATA(IP11_11_9, SCIFA4_TXD_B, SEL_SCIFA4_1),
+	PINMUX_IPSR_MODSEL_DATA(IP11_14_12, VI1_VSYNC_N, SEL_VI1_0),
+	PINMUX_IPSR_DATA(IP11_14_12, AVB_RXD1),
+	PINMUX_IPSR_MODSEL_DATA(IP11_14_12, TS_SCK0_B, SEL_TSIF0_1),
+	PINMUX_IPSR_MODSEL_DATA(IP11_14_12, RX4_B, SEL_SCIF4_1),
+	PINMUX_IPSR_MODSEL_DATA(IP11_14_12, SCIFA4_RXD_B, SEL_SCIFA4_1),
+	PINMUX_IPSR_MODSEL_DATA(IP11_16_15, VI1_CLKENB, SEL_VI1_0),
+	PINMUX_IPSR_DATA(IP11_16_15, AVB_RXD2),
+	PINMUX_IPSR_MODSEL_DATA(IP11_16_15, TS_SDEN0_B, SEL_TSIF0_1),
+	PINMUX_IPSR_MODSEL_DATA(IP11_18_17, VI1_FIELD, SEL_VI1_0),
+	PINMUX_IPSR_DATA(IP11_18_17, AVB_RXD3),
+	PINMUX_IPSR_MODSEL_DATA(IP11_18_17, TS_SPSYNC0_B, SEL_TSIF0_1),
+	PINMUX_IPSR_MODSEL_DATA(IP11_19, VI1_CLK, SEL_VI1_0),
+	PINMUX_IPSR_DATA(IP11_19, AVB_RXD4),
+	PINMUX_IPSR_MODSEL_DATA(IP11_20, VI1_DATA0, SEL_VI1_0),
+	PINMUX_IPSR_DATA(IP11_20, AVB_RXD5),
+	PINMUX_IPSR_MODSEL_DATA(IP11_21, VI1_DATA1, SEL_VI1_0),
+	PINMUX_IPSR_DATA(IP11_21, AVB_RXD6),
+	PINMUX_IPSR_MODSEL_DATA(IP11_22, VI1_DATA2, SEL_VI1_0),
+	PINMUX_IPSR_DATA(IP11_22, AVB_RXD7),
+	PINMUX_IPSR_MODSEL_DATA(IP11_23, VI1_DATA3, SEL_VI1_0),
+	PINMUX_IPSR_DATA(IP11_23, AVB_RX_ER),
+	PINMUX_IPSR_MODSEL_DATA(IP11_24, VI1_DATA4, SEL_VI1_0),
+	PINMUX_IPSR_DATA(IP11_24, AVB_MDIO),
+	PINMUX_IPSR_MODSEL_DATA(IP11_25, VI1_DATA5, SEL_VI1_0),
+	PINMUX_IPSR_DATA(IP11_25, AVB_RX_DV),
+	PINMUX_IPSR_MODSEL_DATA(IP11_26, VI1_DATA6, SEL_VI1_0),
+	PINMUX_IPSR_DATA(IP11_26, AVB_MAGIC),
+	PINMUX_IPSR_MODSEL_DATA(IP11_27, VI1_DATA7, SEL_VI1_0),
+	PINMUX_IPSR_DATA(IP11_27, AVB_MDC),
+	PINMUX_IPSR_DATA(IP11_29_28, ETH_MDIO),
+	PINMUX_IPSR_DATA(IP11_29_28, AVB_RX_CLK),
+	PINMUX_IPSR_MODSEL_DATA(IP11_29_28, SCL2_C, SEL_IIC2_2),
+	PINMUX_IPSR_DATA(IP11_31_30, ETH_CRS_DV),
+	PINMUX_IPSR_DATA(IP11_31_30, AVB_LINK),
+	PINMUX_IPSR_MODSEL_DATA(IP11_31_30, SDA2_C, SEL_IIC2_2),
+
+	/* IPSR12 */
+	PINMUX_IPSR_DATA(IP12_1_0, ETH_RX_ER),
+	PINMUX_IPSR_DATA(IP12_1_0, AVB_CRS),
+	PINMUX_IPSR_MODSEL_DATA(IP12_1_0, SCL3, SEL_IIC3_0),
+	PINMUX_IPSR_MODSEL_DATA(IP12_1_0, SCL7, SEL_IIC7_0),
+	PINMUX_IPSR_DATA(IP12_3_2, ETH_RXD0),
+	PINMUX_IPSR_DATA(IP12_3_2, AVB_PHY_INT),
+	PINMUX_IPSR_MODSEL_DATA(IP12_3_2, SDA3, SEL_IIC3_0),
+	PINMUX_IPSR_MODSEL_DATA(IP12_3_2, SDA7, SEL_IIC7_0),
+	PINMUX_IPSR_DATA(IP12_6_4, ETH_RXD1),
+	PINMUX_IPSR_DATA(IP12_6_4, AVB_GTXREFCLK),
+	PINMUX_IPSR_MODSEL_DATA(IP12_6_4, CAN0_TX_C, SEL_CAN0_2),
+	PINMUX_IPSR_MODSEL_DATA(IP12_6_4, SCL2_D, SEL_IIC2_3),
+	PINMUX_IPSR_MODSEL_DATA(IP12_6_4, MSIOF1_RXD_E, SEL_SOF1_4),
+	PINMUX_IPSR_DATA(IP12_9_7, ETH_LINK),
+	PINMUX_IPSR_DATA(IP12_9_7, AVB_TXD0),
+	PINMUX_IPSR_MODSEL_DATA(IP12_9_7, CAN0_RX_C, SEL_CAN0_2),
+	PINMUX_IPSR_MODSEL_DATA(IP12_9_7, SDA2_D, SEL_IIC2_3),
+	PINMUX_IPSR_MODSEL_DATA(IP12_9_7, MSIOF1_SCK_E, SEL_SOF1_4),
+	PINMUX_IPSR_DATA(IP12_12_10, ETH_REFCLK),
+	PINMUX_IPSR_DATA(IP12_12_10, AVB_TXD1),
+	PINMUX_IPSR_MODSEL_DATA(IP12_12_10, SCIFA3_RXD_B, SEL_SCIFA3_1),
+	PINMUX_IPSR_MODSEL_DATA(IP12_12_10, CAN1_RX_C, SEL_CAN1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP12_12_10, MSIOF1_SYNC_E, SEL_SOF1_4),
+	PINMUX_IPSR_DATA(IP12_15_13, ETH_TXD1),
+	PINMUX_IPSR_DATA(IP12_15_13, AVB_TXD2),
+	PINMUX_IPSR_MODSEL_DATA(IP12_15_13, SCIFA3_TXD_B, SEL_SCIFA3_1),
+	PINMUX_IPSR_MODSEL_DATA(IP12_15_13, CAN1_TX_C, SEL_CAN1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP12_15_13, MSIOF1_TXD_E, SEL_SOF1_4),
+	PINMUX_IPSR_DATA(IP12_17_16, ETH_TX_EN),
+	PINMUX_IPSR_DATA(IP12_17_16, AVB_TXD3),
+	PINMUX_IPSR_MODSEL_DATA(IP12_17_16, TCLK1_B, SEL_TMU1_0),
+	PINMUX_IPSR_MODSEL_DATA(IP12_17_16, CAN_CLK_B, SEL_CANCLK_1),
+	PINMUX_IPSR_DATA(IP12_19_18, ETH_MAGIC),
+	PINMUX_IPSR_DATA(IP12_19_18, AVB_TXD4),
+	PINMUX_IPSR_MODSEL_DATA(IP12_19_18, IETX_C, SEL_IEB_2),
+	PINMUX_IPSR_DATA(IP12_21_20, ETH_TXD0),
+	PINMUX_IPSR_DATA(IP12_21_20, AVB_TXD5),
+	PINMUX_IPSR_MODSEL_DATA(IP12_21_20, IECLK_C, SEL_IEB_2),
+	PINMUX_IPSR_DATA(IP12_23_22, ETH_MDC),
+	PINMUX_IPSR_DATA(IP12_23_22, AVB_TXD6),
+	PINMUX_IPSR_MODSEL_DATA(IP12_23_22, IERX_C, SEL_IEB_2),
+	PINMUX_IPSR_MODSEL_DATA(IP12_26_24, STP_IVCXO27_0, SEL_SSP_0),
+	PINMUX_IPSR_DATA(IP12_26_24, AVB_TXD7),
+	PINMUX_IPSR_MODSEL_DATA(IP12_26_24, SCIFB2_TXD_D, SEL_SCIFB2_3),
+	PINMUX_IPSR_MODSEL_DATA(IP12_26_24, ADIDATA_B, SEL_RAD_1),
+	PINMUX_IPSR_MODSEL_DATA(IP12_26_24, MSIOF0_SYNC_C, SEL_SOF0_2),
+	PINMUX_IPSR_MODSEL_DATA(IP12_29_27, STP_ISCLK_0, SEL_SSP_0),
+	PINMUX_IPSR_DATA(IP12_29_27, AVB_TX_EN),
+	PINMUX_IPSR_MODSEL_DATA(IP12_29_27, SCIFB2_RXD_D, SEL_SCIFB2_3),
+	PINMUX_IPSR_MODSEL_DATA(IP12_29_27, ADICS_SAMP_B, SEL_RAD_1),
+	PINMUX_IPSR_MODSEL_DATA(IP12_29_27, MSIOF0_SCK_C, SEL_SOF0_2),
+
+	/* IPSR13 */
+	PINMUX_IPSR_MODSEL_DATA(IP13_2_0, STP_ISD_0, SEL_SSP_0),
+	PINMUX_IPSR_DATA(IP13_2_0, AVB_TX_ER),
+	PINMUX_IPSR_MODSEL_DATA(IP13_2_0, SCIFB2_SCK_C, SEL_SCIFB2_2),
+	PINMUX_IPSR_MODSEL_DATA(IP13_2_0, ADICLK_B, SEL_RAD_1),
+	PINMUX_IPSR_MODSEL_DATA(IP13_2_0, MSIOF0_SS1_C, SEL_SOF0_2),
+	PINMUX_IPSR_MODSEL_DATA(IP13_4_3, STP_ISEN_0, SEL_SSP_0),
+	PINMUX_IPSR_DATA(IP13_4_3, AVB_TX_CLK),
+	PINMUX_IPSR_MODSEL_DATA(IP13_4_3, ADICHS0_B, SEL_RAD_1),
+	PINMUX_IPSR_MODSEL_DATA(IP13_4_3, MSIOF0_SS2_C, SEL_SOF0_2),
+	PINMUX_IPSR_MODSEL_DATA(IP13_6_5, STP_ISSYNC_0, SEL_SSP_0),
+	PINMUX_IPSR_DATA(IP13_6_5, AVB_COL),
+	PINMUX_IPSR_MODSEL_DATA(IP13_6_5, ADICHS1_B, SEL_RAD_1),
+	PINMUX_IPSR_MODSEL_DATA(IP13_6_5, MSIOF0_RXD_C, SEL_SOF0_2),
+	PINMUX_IPSR_MODSEL_DATA(IP13_9_7, STP_OPWM_0, SEL_SSP_0),
+	PINMUX_IPSR_DATA(IP13_9_7, AVB_GTX_CLK),
+	PINMUX_IPSR_DATA(IP13_9_7, PWM0_B),
+	PINMUX_IPSR_MODSEL_DATA(IP13_9_7, ADICHS2_B, SEL_RAD_1),
+	PINMUX_IPSR_MODSEL_DATA(IP13_9_7, MSIOF0_TXD_C, SEL_SOF0_2),
+	PINMUX_IPSR_DATA(IP13_10, SD0_CLK),
+	PINMUX_IPSR_MODSEL_DATA(IP13_10, SPCLK_B, SEL_QSP_1),
+	PINMUX_IPSR_DATA(IP13_11, SD0_CMD),
+	PINMUX_IPSR_MODSEL_DATA(IP13_11, MOSI_IO0_B, SEL_QSP_1),
+	PINMUX_IPSR_DATA(IP13_12, SD0_DATA0),
+	PINMUX_IPSR_MODSEL_DATA(IP13_12, MISO_IO1_B, SEL_QSP_1),
+	PINMUX_IPSR_DATA(IP13_13, SD0_DATA1),
+	PINMUX_IPSR_MODSEL_DATA(IP13_13, IO2_B, SEL_QSP_1),
+	PINMUX_IPSR_DATA(IP13_14, SD0_DATA2),
+	PINMUX_IPSR_MODSEL_DATA(IP13_14, IO3_B, SEL_QSP_1),
+	PINMUX_IPSR_DATA(IP13_15, SD0_DATA3),
+	PINMUX_IPSR_MODSEL_DATA(IP13_15, SSL_B, SEL_QSP_1),
+	PINMUX_IPSR_DATA(IP13_18_16, SD0_CD),
+	PINMUX_IPSR_MODSEL_DATA(IP13_18_16, MMC_D6_B, SEL_MMC_1),
+	PINMUX_IPSR_MODSEL_DATA(IP13_18_16, SIM0_RST_B, SEL_SIM_1),
+	PINMUX_IPSR_MODSEL_DATA(IP13_18_16, CAN0_RX_F, SEL_CAN0_5),
+	PINMUX_IPSR_MODSEL_DATA(IP13_18_16, SCIFA5_TXD_B, SEL_SCIFA5_1),
+	PINMUX_IPSR_MODSEL_DATA(IP13_18_16, TX3_C, SEL_SCIF3_2),
+	PINMUX_IPSR_DATA(IP13_21_19, SD0_WP),
+	PINMUX_IPSR_MODSEL_DATA(IP13_21_19, MMC_D7_B, SEL_MMC_1),
+	PINMUX_IPSR_MODSEL_DATA(IP13_21_19, SIM0_D_B, SEL_SIM_1),
+	PINMUX_IPSR_MODSEL_DATA(IP13_21_19, CAN0_TX_F, SEL_CAN0_5),
+	PINMUX_IPSR_MODSEL_DATA(IP13_21_19, SCIFA5_RXD_B, SEL_SCIFA5_1),
+	PINMUX_IPSR_MODSEL_DATA(IP13_21_19, RX3_C, SEL_SCIF3_2),
+	PINMUX_IPSR_DATA(IP13_22, SD1_CMD),
+	PINMUX_IPSR_MODSEL_DATA(IP13_22, REMOCON_B, SEL_RCN_1),
+	PINMUX_IPSR_DATA(IP13_24_23, SD1_DATA0),
+	PINMUX_IPSR_MODSEL_DATA(IP13_24_23, SPEEDIN_B, SEL_RSP_1),
+	PINMUX_IPSR_DATA(IP13_25, SD1_DATA1),
+	PINMUX_IPSR_MODSEL_DATA(IP13_25, IETX_B, SEL_IEB_1),
+	PINMUX_IPSR_DATA(IP13_26, SD1_DATA2),
+	PINMUX_IPSR_MODSEL_DATA(IP13_26, IECLK_B, SEL_IEB_1),
+	PINMUX_IPSR_DATA(IP13_27, SD1_DATA3),
+	PINMUX_IPSR_MODSEL_DATA(IP13_27, IERX_B, SEL_IEB_1),
+	PINMUX_IPSR_DATA(IP13_30_28, SD1_CD),
+	PINMUX_IPSR_DATA(IP13_30_28, PWM0),
+	PINMUX_IPSR_DATA(IP13_30_28, TPU_TO0),
+	PINMUX_IPSR_MODSEL_DATA(IP13_30_28, SCL1_C, SEL_IIC1_2),
+
+	/* IPSR14 */
+	PINMUX_IPSR_DATA(IP14_1_0, SD1_WP),
+	PINMUX_IPSR_DATA(IP14_1_0, PWM1_B),
+	PINMUX_IPSR_MODSEL_DATA(IP14_1_0, SDA1_C, SEL_IIC1_2),
+	PINMUX_IPSR_DATA(IP14_2, SD2_CLK),
+	PINMUX_IPSR_DATA(IP14_2, MMC_CLK),
+	PINMUX_IPSR_DATA(IP14_3, SD2_CMD),
+	PINMUX_IPSR_DATA(IP14_3, MMC_CMD),
+	PINMUX_IPSR_DATA(IP14_4, SD2_DATA0),
+	PINMUX_IPSR_DATA(IP14_4, MMC_D0),
+	PINMUX_IPSR_DATA(IP14_5, SD2_DATA1),
+	PINMUX_IPSR_DATA(IP14_5, MMC_D1),
+	PINMUX_IPSR_DATA(IP14_6, SD2_DATA2),
+	PINMUX_IPSR_DATA(IP14_6, MMC_D2),
+	PINMUX_IPSR_DATA(IP14_7, SD2_DATA3),
+	PINMUX_IPSR_DATA(IP14_7, MMC_D3),
+	PINMUX_IPSR_DATA(IP14_10_8, SD2_CD),
+	PINMUX_IPSR_DATA(IP14_10_8, MMC_D4),
+	PINMUX_IPSR_MODSEL_DATA(IP14_10_8, SCL8_C, SEL_IIC8_2),
+	PINMUX_IPSR_MODSEL_DATA(IP14_10_8, TX5_B, SEL_SCIF5_1),
+	PINMUX_IPSR_MODSEL_DATA(IP14_10_8, SCIFA5_TXD_C, SEL_SCIFA5_2),
+	PINMUX_IPSR_DATA(IP14_13_11, SD2_WP),
+	PINMUX_IPSR_DATA(IP14_13_11, MMC_D5),
+	PINMUX_IPSR_MODSEL_DATA(IP14_13_11, SDA8_C, SEL_IIC8_2),
+	PINMUX_IPSR_MODSEL_DATA(IP14_13_11, RX5_B, SEL_SCIF5_1),
+	PINMUX_IPSR_MODSEL_DATA(IP14_13_11, SCIFA5_RXD_C, SEL_SCIFA5_2),
+	PINMUX_IPSR_MODSEL_DATA(IP14_16_14, MSIOF0_SCK, SEL_SOF0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP14_16_14, RX2_C, SEL_SCIF2_2),
+	PINMUX_IPSR_MODSEL_DATA(IP14_16_14, ADIDATA, SEL_RAD_0),
+	PINMUX_IPSR_MODSEL_DATA(IP14_16_14, VI1_CLK_C, SEL_VI1_2),
+	PINMUX_IPSR_DATA(IP14_16_14, VI1_G0_B),
+	PINMUX_IPSR_MODSEL_DATA(IP14_19_17, MSIOF0_SYNC, SEL_SOF0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP14_19_17, TX2_C, SEL_SCIF2_2),
+	PINMUX_IPSR_MODSEL_DATA(IP14_19_17, ADICS_SAMP, SEL_RAD_0),
+	PINMUX_IPSR_MODSEL_DATA(IP14_19_17, VI1_CLKENB_C, SEL_VI1_2),
+	PINMUX_IPSR_DATA(IP14_19_17, VI1_G1_B),
+	PINMUX_IPSR_MODSEL_DATA(IP14_22_20, MSIOF0_TXD, SEL_SOF0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP14_22_20, ADICLK, SEL_RAD_0),
+	PINMUX_IPSR_MODSEL_DATA(IP14_22_20, VI1_FIELD_C, SEL_VI1_2),
+	PINMUX_IPSR_DATA(IP14_22_20, VI1_G2_B),
+	PINMUX_IPSR_MODSEL_DATA(IP14_25_23, MSIOF0_RXD, SEL_SOF0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP14_25_23, ADICHS0, SEL_RAD_0),
+	PINMUX_IPSR_MODSEL_DATA(IP14_25_23, VI1_DATA0_C, SEL_VI1_2),
+	PINMUX_IPSR_DATA(IP14_25_23, VI1_G3_B),
+	PINMUX_IPSR_MODSEL_DATA(IP14_28_26, MSIOF0_SS1, SEL_SOF0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP14_28_26, MMC_D6, SEL_MMC_0),
+	PINMUX_IPSR_MODSEL_DATA(IP14_28_26, ADICHS1, SEL_RAD_0),
+	PINMUX_IPSR_MODSEL_DATA(IP14_28_26, TX0_E, SEL_SCIF0_4),
+	PINMUX_IPSR_MODSEL_DATA(IP14_28_26, VI1_HSYNC_N_C, SEL_VI1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP14_28_26, SCL7_C, SEL_IIC7_2),
+	PINMUX_IPSR_DATA(IP14_28_26, VI1_G4_B),
+	PINMUX_IPSR_MODSEL_DATA(IP14_31_29, MSIOF0_SS2, SEL_SOF0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP14_31_29, MMC_D7, SEL_MMC_0),
+	PINMUX_IPSR_MODSEL_DATA(IP14_31_29, ADICHS2, SEL_RAD_0),
+	PINMUX_IPSR_MODSEL_DATA(IP14_31_29, RX0_E, SEL_SCIF0_4),
+	PINMUX_IPSR_MODSEL_DATA(IP14_31_29, VI1_VSYNC_N_C, SEL_VI1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP14_31_29, SDA7_C, SEL_IIC7_2),
+	PINMUX_IPSR_DATA(IP14_31_29, VI1_G5_B),
+
+	/* IPSR15 */
+	PINMUX_IPSR_MODSEL_DATA(IP15_1_0, SIM0_RST, SEL_SIM_0),
+	PINMUX_IPSR_MODSEL_DATA(IP15_1_0, IETX, SEL_IEB_0),
+	PINMUX_IPSR_MODSEL_DATA(IP15_1_0, CAN1_TX_D, SEL_CAN1_3),
+	PINMUX_IPSR_DATA(IP15_3_2, SIM0_CLK),
+	PINMUX_IPSR_MODSEL_DATA(IP15_3_2, IECLK, SEL_IEB_0),
+	PINMUX_IPSR_MODSEL_DATA(IP15_3_2, CAN_CLK_C, SEL_CANCLK_2),
+	PINMUX_IPSR_MODSEL_DATA(IP15_5_4, SIM0_D, SEL_SIM_0),
+	PINMUX_IPSR_MODSEL_DATA(IP15_5_4, IERX, SEL_IEB_0),
+	PINMUX_IPSR_MODSEL_DATA(IP15_5_4, CAN1_RX_D, SEL_CAN1_3),
+	PINMUX_IPSR_MODSEL_DATA(IP15_8_6, GPS_CLK, SEL_GPS_0),
+	PINMUX_IPSR_MODSEL_DATA(IP15_8_6, DU1_DOTCLKIN_C, SEL_DIS_2),
+	PINMUX_IPSR_MODSEL_DATA(IP15_8_6, AUDIO_CLKB_B, SEL_ADG_1),
+	PINMUX_IPSR_DATA(IP15_8_6, PWM5_B),
+	PINMUX_IPSR_MODSEL_DATA(IP15_8_6, SCIFA3_TXD_C, SEL_SCIFA3_2),
+	PINMUX_IPSR_MODSEL_DATA(IP15_11_9, GPS_SIGN, SEL_GPS_0),
+	PINMUX_IPSR_MODSEL_DATA(IP15_11_9, TX4_C, SEL_SCIF4_2),
+	PINMUX_IPSR_MODSEL_DATA(IP15_11_9, SCIFA4_TXD_C, SEL_SCIFA4_2),
+	PINMUX_IPSR_DATA(IP15_11_9, PWM5),
+	PINMUX_IPSR_DATA(IP15_11_9, VI1_G6_B),
+	PINMUX_IPSR_MODSEL_DATA(IP15_11_9, SCIFA3_RXD_C, SEL_SCIFA3_2),
+	PINMUX_IPSR_MODSEL_DATA(IP15_14_12, GPS_MAG, SEL_GPS_0),
+	PINMUX_IPSR_MODSEL_DATA(IP15_14_12, RX4_C, SEL_SCIF4_2),
+	PINMUX_IPSR_MODSEL_DATA(IP15_14_12, SCIFA4_RXD_C, SEL_SCIFA4_2),
+	PINMUX_IPSR_DATA(IP15_14_12, PWM6),
+	PINMUX_IPSR_DATA(IP15_14_12, VI1_G7_B),
+	PINMUX_IPSR_MODSEL_DATA(IP15_14_12, SCIFA3_SCK_C, SEL_SCIFA3_2),
+	PINMUX_IPSR_MODSEL_DATA(IP15_17_15, HCTS0_N, SEL_HSCIF0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP15_17_15, SCIFB0_CTS_N, SEL_SCIFB_0),
+	PINMUX_IPSR_MODSEL_DATA(IP15_17_15, GLO_I0_C, SEL_GPS_2),
+	PINMUX_IPSR_MODSEL_DATA(IP15_17_15, TCLK1, SEL_TMU1_0),
+	PINMUX_IPSR_MODSEL_DATA(IP15_17_15, VI1_DATA1_C, SEL_VI1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP15_20_18, HRTS0_N, SEL_HSCIF0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP15_20_18, SCIFB0_RTS_N, SEL_SCIFB_0),
+	PINMUX_IPSR_MODSEL_DATA(IP15_20_18, GLO_I1_C, SEL_GPS_2),
+	PINMUX_IPSR_MODSEL_DATA(IP15_20_18, VI1_DATA2_C, SEL_VI1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP15_23_21, HSCK0, SEL_HSCIF0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP15_23_21, SCIFB0_SCK, SEL_SCIFB_0),
+	PINMUX_IPSR_MODSEL_DATA(IP15_23_21, GLO_Q0_C, SEL_GPS_2),
+	PINMUX_IPSR_MODSEL_DATA(IP15_23_21, CAN_CLK, SEL_CANCLK_0),
+	PINMUX_IPSR_DATA(IP15_23_21, TCLK2),
+	PINMUX_IPSR_MODSEL_DATA(IP15_23_21, VI1_DATA3_C, SEL_VI1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP15_26_24, HRX0, SEL_HSCIF0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP15_26_24, SCIFB0_RXD, SEL_SCIFB_0),
+	PINMUX_IPSR_MODSEL_DATA(IP15_26_24, GLO_Q1_C, SEL_GPS_2),
+	PINMUX_IPSR_MODSEL_DATA(IP15_26_24, CAN0_RX_B, SEL_CAN0_1),
+	PINMUX_IPSR_MODSEL_DATA(IP15_26_24, VI1_DATA4_C, SEL_VI1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP15_29_27, HTX0, SEL_HSCIF0_0),
+	PINMUX_IPSR_MODSEL_DATA(IP15_29_27, SCIFB0_TXD, SEL_SCIFB_0),
+	PINMUX_IPSR_MODSEL_DATA(IP15_29_27, GLO_SCLK_C, SEL_GPS_2),
+	PINMUX_IPSR_MODSEL_DATA(IP15_29_27, CAN0_TX_B, SEL_CAN0_1),
+	PINMUX_IPSR_MODSEL_DATA(IP15_29_27, VI1_DATA5_C, SEL_VI1_2),
+
+	/* IPSR16 */
+	PINMUX_IPSR_MODSEL_DATA(IP16_2_0, HRX1, SEL_HSCIF1_0),
+	PINMUX_IPSR_MODSEL_DATA(IP16_2_0, SCIFB1_RXD, SEL_SCIFB1_0),
+	PINMUX_IPSR_DATA(IP16_2_0, VI1_R0_B),
+	PINMUX_IPSR_MODSEL_DATA(IP16_2_0, GLO_SDATA_C, SEL_GPS_2),
+	PINMUX_IPSR_MODSEL_DATA(IP16_2_0, VI1_DATA6_C, SEL_VI1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP16_5_3, HTX1, SEL_HSCIF1_0),
+	PINMUX_IPSR_MODSEL_DATA(IP16_5_3, SCIFB1_TXD, SEL_SCIFB1_0),
+	PINMUX_IPSR_DATA(IP16_5_3, VI1_R1_B),
+	PINMUX_IPSR_MODSEL_DATA(IP16_5_3, GLO_SS_C, SEL_GPS_2),
+	PINMUX_IPSR_MODSEL_DATA(IP16_5_3, VI1_DATA7_C, SEL_VI1_2),
+	PINMUX_IPSR_MODSEL_DATA(IP16_7_6, HSCK1, SEL_HSCIF1_0),
+	PINMUX_IPSR_MODSEL_DATA(IP16_7_6, SCIFB1_SCK, SEL_SCIFB1_0),
+	PINMUX_IPSR_DATA(IP16_7_6, MLB_CK),
+	PINMUX_IPSR_MODSEL_DATA(IP16_7_6, GLO_RFON_C, SEL_GPS_2),
+	PINMUX_IPSR_MODSEL_DATA(IP16_9_8, HCTS1_N, SEL_HSCIF1_0),
+	PINMUX_IPSR_DATA(IP16_9_8, SCIFB1_CTS_N),
+	PINMUX_IPSR_DATA(IP16_9_8, MLB_SIG),
+	PINMUX_IPSR_MODSEL_DATA(IP16_9_8, CAN1_TX_B, SEL_CAN1_1),
+	PINMUX_IPSR_MODSEL_DATA(IP16_11_10, HRTS1_N, SEL_HSCIF1_0),
+	PINMUX_IPSR_DATA(IP16_11_10, SCIFB1_RTS_N),
+	PINMUX_IPSR_DATA(IP16_11_10, MLB_DAT),
+	PINMUX_IPSR_MODSEL_DATA(IP16_11_10, CAN1_RX_B, SEL_CAN1_1),
+};
+
+static struct sh_pfc_pin pinmux_pins[] = {
+	PINMUX_GPIO_GP_ALL(),
+};
+
+/* - DU --------------------------------------------------------------------- */
+static const unsigned int du_rgb666_pins[] = {
+	/* R[7:2], G[7:2], B[7:2] */
+	RCAR_GP_PIN(3, 7),  RCAR_GP_PIN(3, 6),  RCAR_GP_PIN(3, 5),
+	RCAR_GP_PIN(3, 4),  RCAR_GP_PIN(3, 3),  RCAR_GP_PIN(3, 2),
+	RCAR_GP_PIN(3, 15), RCAR_GP_PIN(3, 14), RCAR_GP_PIN(3, 13),
+	RCAR_GP_PIN(3, 12), RCAR_GP_PIN(3, 11), RCAR_GP_PIN(3, 10),
+	RCAR_GP_PIN(3, 23), RCAR_GP_PIN(3, 22), RCAR_GP_PIN(3, 21),
+	RCAR_GP_PIN(3, 20), RCAR_GP_PIN(3, 19), RCAR_GP_PIN(3, 18),
+};
+static const unsigned int du_rgb666_mux[] = {
+	DU1_DR7_MARK, DU1_DR6_MARK, DU1_DR5_MARK, DU1_DR4_MARK,
+	DU1_DR3_MARK, DU1_DR2_MARK,
+	DU1_DG7_MARK, DU1_DG6_MARK, DU1_DG5_MARK, DU1_DG4_MARK,
+	DU1_DG3_MARK, DU1_DG2_MARK,
+	DU1_DB7_MARK, DU1_DB6_MARK, DU1_DB5_MARK, DU1_DB4_MARK,
+	DU1_DB3_MARK, DU1_DB2_MARK,
+};
+static const unsigned int du_rgb888_pins[] = {
+	/* R[7:0], G[7:0], B[7:0] */
+	RCAR_GP_PIN(3, 7),  RCAR_GP_PIN(3, 6),  RCAR_GP_PIN(3, 5),
+	RCAR_GP_PIN(3, 4),  RCAR_GP_PIN(3, 3),  RCAR_GP_PIN(3, 2),
+	RCAR_GP_PIN(3, 1),  RCAR_GP_PIN(3, 0),
+	RCAR_GP_PIN(3, 15), RCAR_GP_PIN(3, 14), RCAR_GP_PIN(3, 13),
+	RCAR_GP_PIN(3, 12), RCAR_GP_PIN(3, 11), RCAR_GP_PIN(3, 10),
+	RCAR_GP_PIN(3, 9),  RCAR_GP_PIN(3, 8),
+	RCAR_GP_PIN(3, 23), RCAR_GP_PIN(3, 22), RCAR_GP_PIN(3, 21),
+	RCAR_GP_PIN(3, 20), RCAR_GP_PIN(3, 19), RCAR_GP_PIN(3, 18),
+	RCAR_GP_PIN(3, 17), RCAR_GP_PIN(3, 16),
+};
+static const unsigned int du_rgb888_mux[] = {
+	DU1_DR7_MARK, DU1_DR6_MARK, DU1_DR5_MARK, DU1_DR4_MARK,
+	DU1_DR3_MARK, DU1_DR2_MARK, DU1_DR1_MARK, DU1_DR0_MARK,
+	DU1_DG7_MARK, DU1_DG6_MARK, DU1_DG5_MARK, DU1_DG4_MARK,
+	DU1_DG3_MARK, DU1_DG2_MARK, DU1_DG1_MARK, DU1_DG0_MARK,
+	DU1_DB7_MARK, DU1_DB6_MARK, DU1_DB5_MARK, DU1_DB4_MARK,
+	DU1_DB3_MARK, DU1_DB2_MARK, DU1_DB1_MARK, DU1_DB0_MARK,
+};
+static const unsigned int du_clk_out_0_pins[] = {
+	/* CLKOUT */
+	RCAR_GP_PIN(3, 25),
+};
+static const unsigned int du_clk_out_0_mux[] = {
+	DU1_DOTCLKOUT0_MARK
+};
+static const unsigned int du_clk_out_1_pins[] = {
+	/* CLKOUT */
+	RCAR_GP_PIN(3, 26),
+};
+static const unsigned int du_clk_out_1_mux[] = {
+	DU1_DOTCLKOUT1_MARK
+};
+static const unsigned int du_sync_1_pins[] = {
+	/* EXVSYNC/VSYNC, EXHSYNC/HSYNC, EXDISP/EXODDF/EXCDE */
+	RCAR_GP_PIN(3, 29), RCAR_GP_PIN(3, 28), RCAR_GP_PIN(3, 27),
+};
+static const unsigned int du_sync_1_mux[] = {
+	DU1_EXODDF_DU1_ODDF_DISP_CDE_MARK,
+	DU1_EXVSYNC_DU1_VSYNC_MARK, DU1_EXHSYNC_DU1_HSYNC_MARK
+};
+static const unsigned int du_cde_disp_pins[] = {
+	/* CDE DISP */
+	RCAR_GP_PIN(3, 31), RCAR_GP_PIN(3, 30),
+};
+static const unsigned int du0_clk_in_pins[] = {
+	/* CLKIN */
+	RCAR_GP_PIN(6, 31),
+};
+static const unsigned int du0_clk_in_mux[] = {
+	DU0_DOTCLKIN_MARK
+};
+static const unsigned int du_cde_disp_mux[] = {
+	DU1_CDE_MARK, DU1_DISP_MARK
+};
+static const unsigned int du1_clk_in_pins[] = {
+	/* CLKIN */
+	RCAR_GP_PIN(7, 20), RCAR_GP_PIN(7, 19), RCAR_GP_PIN(3, 24),
+};
+static const unsigned int du1_clk_in_mux[] = {
+	DU1_DOTCLKIN_C_MARK, DU1_DOTCLKIN_B_MARK, DU1_DOTCLKIN_MARK
+};
+/* - ETH -------------------------------------------------------------------- */
+static const unsigned int eth_link_pins[] = {
+	/* LINK */
+	RCAR_GP_PIN(5, 18),
+};
+static const unsigned int eth_link_mux[] = {
+	ETH_LINK_MARK,
+};
+static const unsigned int eth_magic_pins[] = {
+	/* MAGIC */
+	RCAR_GP_PIN(5, 22),
+};
+static const unsigned int eth_magic_mux[] = {
+	ETH_MAGIC_MARK,
+};
+static const unsigned int eth_mdio_pins[] = {
+	/* MDC, MDIO */
+	RCAR_GP_PIN(5, 24), RCAR_GP_PIN(5, 13),
+};
+static const unsigned int eth_mdio_mux[] = {
+	ETH_MDC_MARK, ETH_MDIO_MARK,
+};
+static const unsigned int eth_rmii_pins[] = {
+	/* RXD[0:1], RX_ER, CRS_DV, TXD[0:1], TX_EN, REF_CLK */
+	RCAR_GP_PIN(5, 16), RCAR_GP_PIN(5, 17), RCAR_GP_PIN(5, 15),
+	RCAR_GP_PIN(5, 14), RCAR_GP_PIN(5, 23), RCAR_GP_PIN(5, 20),
+	RCAR_GP_PIN(5, 21), RCAR_GP_PIN(5, 19),
+};
+static const unsigned int eth_rmii_mux[] = {
+	ETH_RXD0_MARK, ETH_RXD1_MARK, ETH_RX_ER_MARK, ETH_CRS_DV_MARK,
+	ETH_TXD0_MARK, ETH_TXD1_MARK, ETH_TX_EN_MARK, ETH_REFCLK_MARK,
+};
+/* - INTC ------------------------------------------------------------------- */
+static const unsigned int intc_irq0_pins[] = {
+	/* IRQ */
+	RCAR_GP_PIN(7, 10),
+};
+static const unsigned int intc_irq0_mux[] = {
+	IRQ0_MARK,
+};
+static const unsigned int intc_irq1_pins[] = {
+	/* IRQ */
+	RCAR_GP_PIN(7, 11),
+};
+static const unsigned int intc_irq1_mux[] = {
+	IRQ1_MARK,
+};
+static const unsigned int intc_irq2_pins[] = {
+	/* IRQ */
+	RCAR_GP_PIN(7, 12),
+};
+static const unsigned int intc_irq2_mux[] = {
+	IRQ2_MARK,
+};
+static const unsigned int intc_irq3_pins[] = {
+	/* IRQ */
+	RCAR_GP_PIN(7, 13),
+};
+static const unsigned int intc_irq3_mux[] = {
+	IRQ3_MARK,
+};
+/* - MMCIF ------------------------------------------------------------------ */
+static const unsigned int mmc_data1_pins[] = {
+	/* D[0] */
+	RCAR_GP_PIN(6, 18),
+};
+static const unsigned int mmc_data1_mux[] = {
+	MMC_D0_MARK,
+};
+static const unsigned int mmc_data4_pins[] = {
+	/* D[0:3] */
+	RCAR_GP_PIN(6, 18), RCAR_GP_PIN(6, 19),
+	RCAR_GP_PIN(6, 20), RCAR_GP_PIN(6, 21),
+};
+static const unsigned int mmc_data4_mux[] = {
+	MMC_D0_MARK, MMC_D1_MARK, MMC_D2_MARK, MMC_D3_MARK,
+};
+static const unsigned int mmc_data8_pins[] = {
+	/* D[0:7] */
+	RCAR_GP_PIN(6, 18), RCAR_GP_PIN(6, 19),
+	RCAR_GP_PIN(6, 20), RCAR_GP_PIN(6, 21),
+	RCAR_GP_PIN(6, 22), RCAR_GP_PIN(6, 23),
+	RCAR_GP_PIN(6, 28), RCAR_GP_PIN(6, 29),
+};
+static const unsigned int mmc_data8_mux[] = {
+	MMC_D0_MARK, MMC_D1_MARK, MMC_D2_MARK, MMC_D3_MARK,
+	MMC_D4_MARK, MMC_D5_MARK, MMC_D6_MARK, MMC_D7_MARK,
+};
+static const unsigned int mmc_ctrl_pins[] = {
+	/* CLK, CMD */
+	RCAR_GP_PIN(6, 16), RCAR_GP_PIN(6, 17),
+};
+static const unsigned int mmc_ctrl_mux[] = {
+	MMC_CLK_MARK, MMC_CMD_MARK,
+};
+/* - MSIOF0 ----------------------------------------------------------------- */
+static const unsigned int msiof0_clk_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(6, 24),
+};
+static const unsigned int msiof0_clk_mux[] = {
+	MSIOF0_SCK_MARK,
+};
+static const unsigned int msiof0_sync_pins[] = {
+	/* SYNC */
+	RCAR_GP_PIN(6, 25),
+};
+static const unsigned int msiof0_sync_mux[] = {
+	MSIOF0_SYNC_MARK,
+};
+static const unsigned int msiof0_ss1_pins[] = {
+	/* SS1 */
+	RCAR_GP_PIN(6, 28),
+};
+static const unsigned int msiof0_ss1_mux[] = {
+	MSIOF0_SS1_MARK,
+};
+static const unsigned int msiof0_ss2_pins[] = {
+	/* SS2 */
+	RCAR_GP_PIN(6, 29),
+};
+static const unsigned int msiof0_ss2_mux[] = {
+	MSIOF0_SS2_MARK,
+};
+static const unsigned int msiof0_rx_pins[] = {
+	/* RXD */
+	RCAR_GP_PIN(6, 27),
+};
+static const unsigned int msiof0_rx_mux[] = {
+	MSIOF0_RXD_MARK,
+};
+static const unsigned int msiof0_tx_pins[] = {
+	/* TXD */
+	RCAR_GP_PIN(6, 26),
+};
+static const unsigned int msiof0_tx_mux[] = {
+	MSIOF0_TXD_MARK,
+};
+/* - MSIOF1 ----------------------------------------------------------------- */
+static const unsigned int msiof1_clk_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(0, 22),
+};
+static const unsigned int msiof1_clk_mux[] = {
+	MSIOF1_SCK_MARK,
+};
+static const unsigned int msiof1_sync_pins[] = {
+	/* SYNC */
+	RCAR_GP_PIN(0, 23),
+};
+static const unsigned int msiof1_sync_mux[] = {
+	MSIOF1_SYNC_MARK,
+};
+static const unsigned int msiof1_ss1_pins[] = {
+	/* SS1 */
+	RCAR_GP_PIN(0, 24),
+};
+static const unsigned int msiof1_ss1_mux[] = {
+	MSIOF1_SS1_MARK,
+};
+static const unsigned int msiof1_ss2_pins[] = {
+	/* SS2 */
+	RCAR_GP_PIN(0, 25),
+};
+static const unsigned int msiof1_ss2_mux[] = {
+	MSIOF1_SS2_MARK,
+};
+static const unsigned int msiof1_rx_pins[] = {
+	/* RXD */
+	RCAR_GP_PIN(0, 27),
+};
+static const unsigned int msiof1_rx_mux[] = {
+	MSIOF1_RXD_MARK,
+};
+static const unsigned int msiof1_tx_pins[] = {
+	/* TXD */
+	RCAR_GP_PIN(0, 26),
+};
+static const unsigned int msiof1_tx_mux[] = {
+	MSIOF1_TXD_MARK,
+};
+/* - MSIOF2 ----------------------------------------------------------------- */
+static const unsigned int msiof2_clk_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(1, 13),
+};
+static const unsigned int msiof2_clk_mux[] = {
+	MSIOF2_SCK_MARK,
+};
+static const unsigned int msiof2_sync_pins[] = {
+	/* SYNC */
+	RCAR_GP_PIN(1, 14),
+};
+static const unsigned int msiof2_sync_mux[] = {
+	MSIOF2_SYNC_MARK,
+};
+static const unsigned int msiof2_ss1_pins[] = {
+	/* SS1 */
+	RCAR_GP_PIN(1, 17),
+};
+static const unsigned int msiof2_ss1_mux[] = {
+	MSIOF2_SS1_MARK,
+};
+static const unsigned int msiof2_ss2_pins[] = {
+	/* SS2 */
+	RCAR_GP_PIN(1, 18),
+};
+static const unsigned int msiof2_ss2_mux[] = {
+	MSIOF2_SS2_MARK,
+};
+static const unsigned int msiof2_rx_pins[] = {
+	/* RXD */
+	RCAR_GP_PIN(1, 16),
+};
+static const unsigned int msiof2_rx_mux[] = {
+	MSIOF2_RXD_MARK,
+};
+static const unsigned int msiof2_tx_pins[] = {
+	/* TXD */
+	RCAR_GP_PIN(1, 15),
+};
+static const unsigned int msiof2_tx_mux[] = {
+	MSIOF2_TXD_MARK,
+};
+/* - SCIF0 ------------------------------------------------------------------ */
+static const unsigned int scif0_data_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(1, 7), RCAR_GP_PIN(1, 6),
+};
+static const unsigned int scif0_data_mux[] = {
+	RX0_MARK, TX0_MARK,
+};
+static const unsigned int scif0_data_b_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(3, 1), RCAR_GP_PIN(3, 0),
+};
+static const unsigned int scif0_data_b_mux[] = {
+	RX0_B_MARK, TX0_B_MARK,
+};
+static const unsigned int scif0_data_c_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(4, 26), RCAR_GP_PIN(4, 25),
+};
+static const unsigned int scif0_data_c_mux[] = {
+	RX0_C_MARK, TX0_C_MARK,
+};
+static const unsigned int scif0_data_d_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(2, 23), RCAR_GP_PIN(2, 22),
+};
+static const unsigned int scif0_data_d_mux[] = {
+	RX0_D_MARK, TX0_D_MARK,
+};
+static const unsigned int scif0_data_e_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(6, 29), RCAR_GP_PIN(6, 28),
+};
+static const unsigned int scif0_data_e_mux[] = {
+	RX0_E_MARK, TX0_E_MARK,
+};
+/* - SCIF1 ------------------------------------------------------------------ */
+static const unsigned int scif1_data_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(1, 9), RCAR_GP_PIN(1, 8),
+};
+static const unsigned int scif1_data_mux[] = {
+	RX1_MARK, TX1_MARK,
+};
+static const unsigned int scif1_data_b_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(3, 9), RCAR_GP_PIN(3, 8),
+};
+static const unsigned int scif1_data_b_mux[] = {
+	RX1_B_MARK, TX1_B_MARK,
+};
+static const unsigned int scif1_clk_b_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(3, 10),
+};
+static const unsigned int scif1_clk_b_mux[] = {
+	SCIF1_SCK_B_MARK,
+};
+static const unsigned int scif1_data_c_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(4, 28), RCAR_GP_PIN(4, 27),
+};
+static const unsigned int scif1_data_c_mux[] = {
+	RX1_C_MARK, TX1_C_MARK,
+};
+static const unsigned int scif1_data_d_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(2, 25), RCAR_GP_PIN(2, 24),
+};
+static const unsigned int scif1_data_d_mux[] = {
+	RX1_D_MARK, TX1_D_MARK,
+};
+/* - SCIF2 ------------------------------------------------------------------ */
+static const unsigned int scif2_data_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(2, 30), RCAR_GP_PIN(2, 31),
+};
+static const unsigned int scif2_data_mux[] = {
+	RX2_MARK, TX2_MARK,
+};
+static const unsigned int scif2_data_b_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(3, 17), RCAR_GP_PIN(3, 16),
+};
+static const unsigned int scif2_data_b_mux[] = {
+	RX2_B_MARK, TX2_B_MARK,
+};
+static const unsigned int scif2_clk_b_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(3, 18),
+};
+static const unsigned int scif2_clk_b_mux[] = {
+	SCIF2_SCK_B_MARK,
+};
+static const unsigned int scif2_data_c_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(6, 24), RCAR_GP_PIN(6, 25),
+};
+static const unsigned int scif2_data_c_mux[] = {
+	RX2_C_MARK, TX2_C_MARK,
+};
+static const unsigned int scif2_data_e_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(2, 7), RCAR_GP_PIN(2, 8),
+};
+static const unsigned int scif2_data_e_mux[] = {
+	RX2_E_MARK, TX2_E_MARK,
+};
+/* - SCIF3 ------------------------------------------------------------------ */
+static const unsigned int scif3_data_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(3, 22), RCAR_GP_PIN(3, 21),
+};
+static const unsigned int scif3_data_mux[] = {
+	RX3_MARK, TX3_MARK,
+};
+static const unsigned int scif3_clk_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(3, 23),
+};
+static const unsigned int scif3_clk_mux[] = {
+	SCIF3_SCK_MARK,
+};
+static const unsigned int scif3_data_b_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(3, 29), RCAR_GP_PIN(3, 26),
+};
+static const unsigned int scif3_data_b_mux[] = {
+	RX3_B_MARK, TX3_B_MARK,
+};
+static const unsigned int scif3_clk_b_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(4, 8),
+};
+static const unsigned int scif3_clk_b_mux[] = {
+	SCIF3_SCK_B_MARK,
+};
+static const unsigned int scif3_data_c_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(6, 7), RCAR_GP_PIN(6, 6),
+};
+static const unsigned int scif3_data_c_mux[] = {
+	RX3_C_MARK, TX3_C_MARK,
+};
+static const unsigned int scif3_data_d_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(2, 27), RCAR_GP_PIN(2, 26),
+};
+static const unsigned int scif3_data_d_mux[] = {
+	RX3_D_MARK, TX3_D_MARK,
+};
+/* - SCIF4 ------------------------------------------------------------------ */
+static const unsigned int scif4_data_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(4, 2), RCAR_GP_PIN(4, 1),
+};
+static const unsigned int scif4_data_mux[] = {
+	RX4_MARK, TX4_MARK,
+};
+static const unsigned int scif4_data_b_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(5, 1), RCAR_GP_PIN(5, 0),
+};
+static const unsigned int scif4_data_b_mux[] = {
+	RX4_B_MARK, TX4_B_MARK,
+};
+static const unsigned int scif4_data_c_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(7, 22), RCAR_GP_PIN(7, 21),
+};
+static const unsigned int scif4_data_c_mux[] = {
+	RX4_C_MARK, TX4_C_MARK,
+};
+/* - SCIF5 ------------------------------------------------------------------ */
+static const unsigned int scif5_data_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(4, 4), RCAR_GP_PIN(4, 3),
+};
+static const unsigned int scif5_data_mux[] = {
+	RX5_MARK, TX5_MARK,
+};
+static const unsigned int scif5_data_b_pins[] = {
+	/* RX, TX */
+	RCAR_GP_PIN(6, 23), RCAR_GP_PIN(6, 22),
+};
+static const unsigned int scif5_data_b_mux[] = {
+	RX5_B_MARK, TX5_B_MARK,
+};
+/* - SCIFA0 ----------------------------------------------------------------- */
+static const unsigned int scifa0_data_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(1, 7), RCAR_GP_PIN(1, 6),
+};
+static const unsigned int scifa0_data_mux[] = {
+	SCIFA0_RXD_MARK, SCIFA0_TXD_MARK,
+};
+static const unsigned int scifa0_data_b_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(3, 1), RCAR_GP_PIN(3, 0),
+};
+static const unsigned int scifa0_data_b_mux[] = {
+	SCIFA0_RXD_B_MARK, SCIFA0_TXD_B_MARK
+};
+/* - SCIFA1 ----------------------------------------------------------------- */
+static const unsigned int scifa1_data_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(1, 9), RCAR_GP_PIN(1, 8),
+};
+static const unsigned int scifa1_data_mux[] = {
+	SCIFA1_RXD_MARK, SCIFA1_TXD_MARK,
+};
+static const unsigned int scifa1_clk_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(3, 10),
+};
+static const unsigned int scifa1_clk_mux[] = {
+	SCIFA1_SCK_MARK,
+};
+static const unsigned int scifa1_data_b_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(3, 9), RCAR_GP_PIN(3, 8),
+};
+static const unsigned int scifa1_data_b_mux[] = {
+	SCIFA1_RXD_B_MARK, SCIFA1_TXD_B_MARK,
+};
+static const unsigned int scifa1_clk_b_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(1, 0),
+};
+static const unsigned int scifa1_clk_b_mux[] = {
+	SCIFA1_SCK_B_MARK,
+};
+static const unsigned int scifa1_data_c_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(1, 2), RCAR_GP_PIN(1, 3),
+};
+static const unsigned int scifa1_data_c_mux[] = {
+	SCIFA1_RXD_C_MARK, SCIFA1_TXD_C_MARK,
+};
+/* - SCIFA2 ----------------------------------------------------------------- */
+static const unsigned int scifa2_data_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(2, 30), RCAR_GP_PIN(2, 31),
+};
+static const unsigned int scifa2_data_mux[] = {
+	SCIFA2_RXD_MARK, SCIFA2_TXD_MARK,
+};
+static const unsigned int scifa2_clk_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(3, 18),
+};
+static const unsigned int scifa2_clk_mux[] = {
+	SCIFA2_SCK_MARK,
+};
+static const unsigned int scifa2_data_b_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(3, 17), RCAR_GP_PIN(3, 16),
+};
+static const unsigned int scifa2_data_b_mux[] = {
+	SCIFA2_RXD_B_MARK, SCIFA2_TXD_B_MARK,
+};
+/* - SCIFA3 ----------------------------------------------------------------- */
+static const unsigned int scifa3_data_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(3, 22), RCAR_GP_PIN(3, 21),
+};
+static const unsigned int scifa3_data_mux[] = {
+	SCIFA3_RXD_MARK, SCIFA3_TXD_MARK,
+};
+static const unsigned int scifa3_clk_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(3, 23),
+};
+static const unsigned int scifa3_clk_mux[] = {
+	SCIFA3_SCK_MARK,
+};
+static const unsigned int scifa3_data_b_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(5, 19), RCAR_GP_PIN(5, 20),
+};
+static const unsigned int scifa3_data_b_mux[] = {
+	SCIFA3_RXD_B_MARK, SCIFA3_TXD_B_MARK,
+};
+static const unsigned int scifa3_clk_b_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(4, 8),
+};
+static const unsigned int scifa3_clk_b_mux[] = {
+	SCIFA3_SCK_B_MARK,
+};
+static const unsigned int scifa3_data_c_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(7, 21), RCAR_GP_PIN(7, 20),
+};
+static const unsigned int scifa3_data_c_mux[] = {
+	SCIFA3_RXD_C_MARK, SCIFA3_TXD_C_MARK,
+};
+static const unsigned int scifa3_clk_c_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(7, 22),
+};
+static const unsigned int scifa3_clk_c_mux[] = {
+	SCIFA3_SCK_C_MARK,
+};
+/* - SCIFA4 ----------------------------------------------------------------- */
+static const unsigned int scifa4_data_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(4, 2), RCAR_GP_PIN(4, 1),
+};
+static const unsigned int scifa4_data_mux[] = {
+	SCIFA4_RXD_MARK, SCIFA4_TXD_MARK,
+};
+static const unsigned int scifa4_data_b_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(5, 1), RCAR_GP_PIN(5, 0),
+};
+static const unsigned int scifa4_data_b_mux[] = {
+	SCIFA4_RXD_B_MARK, SCIFA4_TXD_B_MARK,
+};
+static const unsigned int scifa4_data_c_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(7, 22), RCAR_GP_PIN(7, 21),
+};
+static const unsigned int scifa4_data_c_mux[] = {
+	SCIFA4_RXD_C_MARK, SCIFA4_TXD_C_MARK,
+};
+/* - SCIFA5 ----------------------------------------------------------------- */
+static const unsigned int scifa5_data_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(4, 4), RCAR_GP_PIN(4, 3),
+};
+static const unsigned int scifa5_data_mux[] = {
+	SCIFA5_RXD_MARK, SCIFA5_TXD_MARK,
+};
+static const unsigned int scifa5_data_b_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(6, 7), RCAR_GP_PIN(6, 6),
+};
+static const unsigned int scifa5_data_b_mux[] = {
+	SCIFA5_RXD_B_MARK, SCIFA5_TXD_B_MARK,
+};
+static const unsigned int scifa5_data_c_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(6, 23), RCAR_GP_PIN(6, 22),
+};
+static const unsigned int scifa5_data_c_mux[] = {
+	SCIFA5_RXD_C_MARK, SCIFA5_TXD_C_MARK,
+};
+/* - SCIFB0 ----------------------------------------------------------------- */
+static const unsigned int scifb0_data_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(7, 3), RCAR_GP_PIN(7, 4),
+};
+static const unsigned int scifb0_data_mux[] = {
+	SCIFB0_RXD_MARK, SCIFB0_TXD_MARK,
+};
+static const unsigned int scifb0_clk_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(7, 2),
+};
+static const unsigned int scifb0_clk_mux[] = {
+	SCIFB0_SCK_MARK,
+};
+static const unsigned int scifb0_ctrl_pins[] = {
+	/* RTS, CTS */
+	RCAR_GP_PIN(7, 1), RCAR_GP_PIN(7, 0),
+};
+static const unsigned int scifb0_ctrl_mux[] = {
+	SCIFB0_RTS_N_MARK, SCIFB0_CTS_N_MARK,
+};
+static const unsigned int scifb0_data_b_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(1, 20), RCAR_GP_PIN(1, 21),
+};
+static const unsigned int scifb0_data_b_mux[] = {
+	SCIFB0_RXD_B_MARK, SCIFB0_TXD_B_MARK,
+};
+static const unsigned int scifb0_clk_b_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(5, 31),
+};
+static const unsigned int scifb0_clk_b_mux[] = {
+	SCIFB0_SCK_B_MARK,
+};
+static const unsigned int scifb0_ctrl_b_pins[] = {
+	/* RTS, CTS */
+	RCAR_GP_PIN(1, 22), RCAR_GP_PIN(1, 23),
+};
+static const unsigned int scifb0_ctrl_b_mux[] = {
+	SCIFB0_RTS_N_B_MARK, SCIFB0_CTS_N_B_MARK,
+};
+static const unsigned int scifb0_data_c_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(2, 0), RCAR_GP_PIN(2, 1),
+};
+static const unsigned int scifb0_data_c_mux[] = {
+	SCIFB0_RXD_C_MARK, SCIFB0_TXD_C_MARK,
+};
+static const unsigned int scifb0_clk_c_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(2, 30),
+};
+static const unsigned int scifb0_clk_c_mux[] = {
+	SCIFB0_SCK_C_MARK,
+};
+static const unsigned int scifb0_data_d_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(4, 28), RCAR_GP_PIN(4, 18),
+};
+static const unsigned int scifb0_data_d_mux[] = {
+	SCIFB0_RXD_D_MARK, SCIFB0_TXD_D_MARK,
+};
+static const unsigned int scifb0_clk_d_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(4, 17),
+};
+static const unsigned int scifb0_clk_d_mux[] = {
+	SCIFB0_SCK_D_MARK,
+};
+/* - SCIFB1 ----------------------------------------------------------------- */
+static const unsigned int scifb1_data_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(7, 5), RCAR_GP_PIN(7, 6),
+};
+static const unsigned int scifb1_data_mux[] = {
+	SCIFB1_RXD_MARK, SCIFB1_TXD_MARK,
+};
+static const unsigned int scifb1_clk_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(7, 7),
+};
+static const unsigned int scifb1_clk_mux[] = {
+	SCIFB1_SCK_MARK,
+};
+static const unsigned int scifb1_ctrl_pins[] = {
+	/* RTS, CTS */
+	RCAR_GP_PIN(7, 9), RCAR_GP_PIN(7, 8),
+};
+static const unsigned int scifb1_ctrl_mux[] = {
+	SCIFB1_RTS_N_MARK, SCIFB1_CTS_N_MARK,
+};
+static const unsigned int scifb1_data_b_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(1, 17), RCAR_GP_PIN(1, 18),
+};
+static const unsigned int scifb1_data_b_mux[] = {
+	SCIFB1_RXD_B_MARK, SCIFB1_TXD_B_MARK,
+};
+static const unsigned int scifb1_clk_b_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(1, 3),
+};
+static const unsigned int scifb1_clk_b_mux[] = {
+	SCIFB1_SCK_B_MARK,
+};
+static const unsigned int scifb1_data_c_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(1, 2), RCAR_GP_PIN(1, 3),
+};
+static const unsigned int scifb1_data_c_mux[] = {
+	SCIFB1_RXD_C_MARK, SCIFB1_TXD_C_MARK,
+};
+static const unsigned int scifb1_clk_c_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(7, 11),
+};
+static const unsigned int scifb1_clk_c_mux[] = {
+	SCIFB1_SCK_C_MARK,
+};
+static const unsigned int scifb1_data_d_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(7, 10), RCAR_GP_PIN(7, 12),
+};
+static const unsigned int scifb1_data_d_mux[] = {
+	SCIFB1_RXD_D_MARK, SCIFB1_TXD_D_MARK,
+};
+/* - SCIFB2 ----------------------------------------------------------------- */
+static const unsigned int scifb2_data_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(4, 16), RCAR_GP_PIN(4, 17),
+};
+static const unsigned int scifb2_data_mux[] = {
+	SCIFB2_RXD_MARK, SCIFB2_TXD_MARK,
+};
+static const unsigned int scifb2_clk_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(4, 15),
+};
+static const unsigned int scifb2_clk_mux[] = {
+	SCIFB2_SCK_MARK,
+};
+static const unsigned int scifb2_ctrl_pins[] = {
+	/* RTS, CTS */
+	RCAR_GP_PIN(4, 14), RCAR_GP_PIN(4, 13),
+};
+static const unsigned int scifb2_ctrl_mux[] = {
+	SCIFB2_RTS_N_MARK, SCIFB2_CTS_N_MARK,
+};
+static const unsigned int scifb2_data_b_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(3, 12), RCAR_GP_PIN(3, 13),
+};
+static const unsigned int scifb2_data_b_mux[] = {
+	SCIFB2_RXD_B_MARK, SCIFB2_TXD_B_MARK,
+};
+static const unsigned int scifb2_clk_b_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(5, 31),
+};
+static const unsigned int scifb2_clk_b_mux[] = {
+	SCIFB2_SCK_B_MARK,
+};
+static const unsigned int scifb2_ctrl_b_pins[] = {
+	/* RTS, CTS */
+	RCAR_GP_PIN(3, 15), RCAR_GP_PIN(3, 14),
+};
+static const unsigned int scifb2_ctrl_b_mux[] = {
+	SCIFB2_RTS_N_B_MARK, SCIFB2_CTS_N_B_MARK,
+};
+static const unsigned int scifb2_data_c_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(2, 0), RCAR_GP_PIN(2, 1),
+};
+static const unsigned int scifb2_data_c_mux[] = {
+	SCIFB2_RXD_C_MARK, SCIFB2_TXD_C_MARK,
+};
+static const unsigned int scifb2_clk_c_pins[] = {
+	/* SCK */
+	RCAR_GP_PIN(5, 27),
+};
+static const unsigned int scifb2_clk_c_mux[] = {
+	SCIFB2_SCK_C_MARK,
+};
+static const unsigned int scifb2_data_d_pins[] = {
+	/* RXD, TXD */
+	RCAR_GP_PIN(5, 26), RCAR_GP_PIN(5, 25),
+};
+static const unsigned int scifb2_data_d_mux[] = {
+	SCIFB2_RXD_D_MARK, SCIFB2_TXD_D_MARK,
+};
+/* - SDHI0 ------------------------------------------------------------------ */
+static const unsigned int sdhi0_data1_pins[] = {
+	/* D0 */
+	RCAR_GP_PIN(6, 2),
+};
+static const unsigned int sdhi0_data1_mux[] = {
+	SD0_DATA0_MARK,
+};
+static const unsigned int sdhi0_data4_pins[] = {
+	/* D[0:3] */
+	RCAR_GP_PIN(6, 2), RCAR_GP_PIN(6, 3),
+	RCAR_GP_PIN(6, 4), RCAR_GP_PIN(6, 5),
+};
+static const unsigned int sdhi0_data4_mux[] = {
+	SD0_DATA0_MARK, SD0_DATA1_MARK, SD0_DATA2_MARK, SD0_DATA3_MARK,
+};
+static const unsigned int sdhi0_ctrl_pins[] = {
+	/* CLK, CMD */
+	RCAR_GP_PIN(6, 0), RCAR_GP_PIN(6, 1),
+};
+static const unsigned int sdhi0_ctrl_mux[] = {
+	SD0_CLK_MARK, SD0_CMD_MARK,
+};
+static const unsigned int sdhi0_cd_pins[] = {
+	/* CD */
+	RCAR_GP_PIN(6, 6),
+};
+static const unsigned int sdhi0_cd_mux[] = {
+	SD0_CD_MARK,
+};
+static const unsigned int sdhi0_wp_pins[] = {
+	/* WP */
+	RCAR_GP_PIN(6, 7),
+};
+static const unsigned int sdhi0_wp_mux[] = {
+	SD0_WP_MARK,
+};
+/* - SDHI1 ------------------------------------------------------------------ */
+static const unsigned int sdhi1_data1_pins[] = {
+	/* D0 */
+	RCAR_GP_PIN(6, 10),
+};
+static const unsigned int sdhi1_data1_mux[] = {
+	SD1_DATA0_MARK,
+};
+static const unsigned int sdhi1_data4_pins[] = {
+	/* D[0:3] */
+	RCAR_GP_PIN(6, 10), RCAR_GP_PIN(6, 11),
+	RCAR_GP_PIN(6, 12), RCAR_GP_PIN(6, 13),
+};
+static const unsigned int sdhi1_data4_mux[] = {
+	SD1_DATA0_MARK, SD1_DATA1_MARK, SD1_DATA2_MARK, SD1_DATA3_MARK,
+};
+static const unsigned int sdhi1_ctrl_pins[] = {
+	/* CLK, CMD */
+	RCAR_GP_PIN(6, 8), RCAR_GP_PIN(6, 9),
+};
+static const unsigned int sdhi1_ctrl_mux[] = {
+	SD1_CLK_MARK, SD1_CMD_MARK,
+};
+static const unsigned int sdhi1_cd_pins[] = {
+	/* CD */
+	RCAR_GP_PIN(6, 14),
+};
+static const unsigned int sdhi1_cd_mux[] = {
+	SD1_CD_MARK,
+};
+static const unsigned int sdhi1_wp_pins[] = {
+	/* WP */
+	RCAR_GP_PIN(6, 15),
+};
+static const unsigned int sdhi1_wp_mux[] = {
+	SD1_WP_MARK,
+};
+/* - SDHI2 ------------------------------------------------------------------ */
+static const unsigned int sdhi2_data1_pins[] = {
+	/* D0 */
+	RCAR_GP_PIN(6, 18),
+};
+static const unsigned int sdhi2_data1_mux[] = {
+	SD2_DATA0_MARK,
+};
+static const unsigned int sdhi2_data4_pins[] = {
+	/* D[0:3] */
+	RCAR_GP_PIN(6, 18), RCAR_GP_PIN(6, 19),
+	RCAR_GP_PIN(6, 20), RCAR_GP_PIN(6, 21),
+};
+static const unsigned int sdhi2_data4_mux[] = {
+	SD2_DATA0_MARK, SD2_DATA1_MARK, SD2_DATA2_MARK, SD2_DATA3_MARK,
+};
+static const unsigned int sdhi2_ctrl_pins[] = {
+	/* CLK, CMD */
+	RCAR_GP_PIN(6, 16), RCAR_GP_PIN(6, 17),
+};
+static const unsigned int sdhi2_ctrl_mux[] = {
+	SD2_CLK_MARK, SD2_CMD_MARK,
+};
+static const unsigned int sdhi2_cd_pins[] = {
+	/* CD */
+	RCAR_GP_PIN(6, 22),
+};
+static const unsigned int sdhi2_cd_mux[] = {
+	SD2_CD_MARK,
+};
+static const unsigned int sdhi2_wp_pins[] = {
+	/* WP */
+	RCAR_GP_PIN(6, 23),
+};
+static const unsigned int sdhi2_wp_mux[] = {
+	SD2_WP_MARK,
+};
+/* - USB0 ------------------------------------------------------------------- */
+static const unsigned int usb0_pwen_pins[] = {
+	/* PWEN */
+	RCAR_GP_PIN(7, 23),
+};
+static const unsigned int usb0_pwen_mux[] = {
+	USB0_PWEN_MARK,
+};
+static const unsigned int usb0_ovc_pins[] = {
+	/* OVC */
+	RCAR_GP_PIN(7, 24),
+};
+static const unsigned int usb0_ovc_mux[] = {
+	USB0_OVC_MARK,
+};
+/* - USB1 ------------------------------------------------------------------- */
+static const unsigned int usb1_pwen_pins[] = {
+	/* PWEN */
+	RCAR_GP_PIN(7, 25),
+};
+static const unsigned int usb1_pwen_mux[] = {
+	USB1_PWEN_MARK,
+};
+static const unsigned int usb1_ovc_pins[] = {
+	/* OVC */
+	RCAR_GP_PIN(6, 30),
+};
+static const unsigned int usb1_ovc_mux[] = {
+	USB1_OVC_MARK,
+};
+
+static const struct sh_pfc_pin_group pinmux_groups[] = {
+	SH_PFC_PIN_GROUP(du_rgb666),
+	SH_PFC_PIN_GROUP(du_rgb888),
+	SH_PFC_PIN_GROUP(du_clk_out_0),
+	SH_PFC_PIN_GROUP(du_clk_out_1),
+	SH_PFC_PIN_GROUP(du_sync_1),
+	SH_PFC_PIN_GROUP(du_cde_disp),
+	SH_PFC_PIN_GROUP(du0_clk_in),
+	SH_PFC_PIN_GROUP(du1_clk_in),
+	SH_PFC_PIN_GROUP(eth_link),
+	SH_PFC_PIN_GROUP(eth_magic),
+	SH_PFC_PIN_GROUP(eth_mdio),
+	SH_PFC_PIN_GROUP(eth_rmii),
+	SH_PFC_PIN_GROUP(intc_irq0),
+	SH_PFC_PIN_GROUP(intc_irq1),
+	SH_PFC_PIN_GROUP(intc_irq2),
+	SH_PFC_PIN_GROUP(intc_irq3),
+	SH_PFC_PIN_GROUP(mmc_data1),
+	SH_PFC_PIN_GROUP(mmc_data4),
+	SH_PFC_PIN_GROUP(mmc_data8),
+	SH_PFC_PIN_GROUP(mmc_ctrl),
+	SH_PFC_PIN_GROUP(msiof0_clk),
+	SH_PFC_PIN_GROUP(msiof0_sync),
+	SH_PFC_PIN_GROUP(msiof0_ss1),
+	SH_PFC_PIN_GROUP(msiof0_ss2),
+	SH_PFC_PIN_GROUP(msiof0_rx),
+	SH_PFC_PIN_GROUP(msiof0_tx),
+	SH_PFC_PIN_GROUP(msiof1_clk),
+	SH_PFC_PIN_GROUP(msiof1_sync),
+	SH_PFC_PIN_GROUP(msiof1_ss1),
+	SH_PFC_PIN_GROUP(msiof1_ss2),
+	SH_PFC_PIN_GROUP(msiof1_rx),
+	SH_PFC_PIN_GROUP(msiof1_tx),
+	SH_PFC_PIN_GROUP(msiof2_clk),
+	SH_PFC_PIN_GROUP(msiof2_sync),
+	SH_PFC_PIN_GROUP(msiof2_ss1),
+	SH_PFC_PIN_GROUP(msiof2_ss2),
+	SH_PFC_PIN_GROUP(msiof2_rx),
+	SH_PFC_PIN_GROUP(msiof2_tx),
+	SH_PFC_PIN_GROUP(scif0_data),
+	SH_PFC_PIN_GROUP(scif0_data_b),
+	SH_PFC_PIN_GROUP(scif0_data_c),
+	SH_PFC_PIN_GROUP(scif0_data_d),
+	SH_PFC_PIN_GROUP(scif0_data_e),
+	SH_PFC_PIN_GROUP(scif1_data),
+	SH_PFC_PIN_GROUP(scif1_data_b),
+	SH_PFC_PIN_GROUP(scif1_clk_b),
+	SH_PFC_PIN_GROUP(scif1_data_c),
+	SH_PFC_PIN_GROUP(scif1_data_d),
+	SH_PFC_PIN_GROUP(scif2_data),
+	SH_PFC_PIN_GROUP(scif2_data_b),
+	SH_PFC_PIN_GROUP(scif2_clk_b),
+	SH_PFC_PIN_GROUP(scif2_data_c),
+	SH_PFC_PIN_GROUP(scif2_data_e),
+	SH_PFC_PIN_GROUP(scif3_data),
+	SH_PFC_PIN_GROUP(scif3_clk),
+	SH_PFC_PIN_GROUP(scif3_data_b),
+	SH_PFC_PIN_GROUP(scif3_clk_b),
+	SH_PFC_PIN_GROUP(scif3_data_c),
+	SH_PFC_PIN_GROUP(scif3_data_d),
+	SH_PFC_PIN_GROUP(scif4_data),
+	SH_PFC_PIN_GROUP(scif4_data_b),
+	SH_PFC_PIN_GROUP(scif4_data_c),
+	SH_PFC_PIN_GROUP(scif5_data),
+	SH_PFC_PIN_GROUP(scif5_data_b),
+	SH_PFC_PIN_GROUP(scifa0_data),
+	SH_PFC_PIN_GROUP(scifa0_data_b),
+	SH_PFC_PIN_GROUP(scifa1_data),
+	SH_PFC_PIN_GROUP(scifa1_clk),
+	SH_PFC_PIN_GROUP(scifa1_data_b),
+	SH_PFC_PIN_GROUP(scifa1_clk_b),
+	SH_PFC_PIN_GROUP(scifa1_data_c),
+	SH_PFC_PIN_GROUP(scifa2_data),
+	SH_PFC_PIN_GROUP(scifa2_clk),
+	SH_PFC_PIN_GROUP(scifa2_data_b),
+	SH_PFC_PIN_GROUP(scifa3_data),
+	SH_PFC_PIN_GROUP(scifa3_clk),
+	SH_PFC_PIN_GROUP(scifa3_data_b),
+	SH_PFC_PIN_GROUP(scifa3_clk_b),
+	SH_PFC_PIN_GROUP(scifa3_data_c),
+	SH_PFC_PIN_GROUP(scifa3_clk_c),
+	SH_PFC_PIN_GROUP(scifa4_data),
+	SH_PFC_PIN_GROUP(scifa4_data_b),
+	SH_PFC_PIN_GROUP(scifa4_data_c),
+	SH_PFC_PIN_GROUP(scifa5_data),
+	SH_PFC_PIN_GROUP(scifa5_data_b),
+	SH_PFC_PIN_GROUP(scifa5_data_c),
+	SH_PFC_PIN_GROUP(scifb0_data),
+	SH_PFC_PIN_GROUP(scifb0_clk),
+	SH_PFC_PIN_GROUP(scifb0_ctrl),
+	SH_PFC_PIN_GROUP(scifb0_data_b),
+	SH_PFC_PIN_GROUP(scifb0_clk_b),
+	SH_PFC_PIN_GROUP(scifb0_ctrl_b),
+	SH_PFC_PIN_GROUP(scifb0_data_c),
+	SH_PFC_PIN_GROUP(scifb0_clk_c),
+	SH_PFC_PIN_GROUP(scifb0_data_d),
+	SH_PFC_PIN_GROUP(scifb0_clk_d),
+	SH_PFC_PIN_GROUP(scifb1_data),
+	SH_PFC_PIN_GROUP(scifb1_clk),
+	SH_PFC_PIN_GROUP(scifb1_ctrl),
+	SH_PFC_PIN_GROUP(scifb1_data_b),
+	SH_PFC_PIN_GROUP(scifb1_clk_b),
+	SH_PFC_PIN_GROUP(scifb1_data_c),
+	SH_PFC_PIN_GROUP(scifb1_clk_c),
+	SH_PFC_PIN_GROUP(scifb1_data_d),
+	SH_PFC_PIN_GROUP(scifb2_data),
+	SH_PFC_PIN_GROUP(scifb2_clk),
+	SH_PFC_PIN_GROUP(scifb2_ctrl),
+	SH_PFC_PIN_GROUP(scifb2_data_b),
+	SH_PFC_PIN_GROUP(scifb2_clk_b),
+	SH_PFC_PIN_GROUP(scifb2_ctrl_b),
+	SH_PFC_PIN_GROUP(scifb2_data_c),
+	SH_PFC_PIN_GROUP(scifb2_clk_c),
+	SH_PFC_PIN_GROUP(scifb2_data_d),
+	SH_PFC_PIN_GROUP(sdhi0_data1),
+	SH_PFC_PIN_GROUP(sdhi0_data4),
+	SH_PFC_PIN_GROUP(sdhi0_ctrl),
+	SH_PFC_PIN_GROUP(sdhi0_cd),
+	SH_PFC_PIN_GROUP(sdhi0_wp),
+	SH_PFC_PIN_GROUP(sdhi1_data1),
+	SH_PFC_PIN_GROUP(sdhi1_data4),
+	SH_PFC_PIN_GROUP(sdhi1_ctrl),
+	SH_PFC_PIN_GROUP(sdhi1_cd),
+	SH_PFC_PIN_GROUP(sdhi1_wp),
+	SH_PFC_PIN_GROUP(sdhi2_data1),
+	SH_PFC_PIN_GROUP(sdhi2_data4),
+	SH_PFC_PIN_GROUP(sdhi2_ctrl),
+	SH_PFC_PIN_GROUP(sdhi2_cd),
+	SH_PFC_PIN_GROUP(sdhi2_wp),
+	SH_PFC_PIN_GROUP(usb0_pwen),
+	SH_PFC_PIN_GROUP(usb0_ovc),
+	SH_PFC_PIN_GROUP(usb1_pwen),
+	SH_PFC_PIN_GROUP(usb1_ovc),
+};
+
+static const char * const du_groups[] = {
+	"du_rgb666",
+	"du_rgb888",
+	"du_clk_out_0",
+	"du_clk_out_1",
+	"du_sync_1",
+	"du_cde_disp",
+};
+
+static const char * const du0_groups[] = {
+	"du0_clk_in",
+};
+
+static const char * const du1_groups[] = {
+	"du1_clk_in",
+};
+
+static const char * const eth_groups[] = {
+	"eth_link",
+	"eth_magic",
+	"eth_mdio",
+	"eth_rmii",
+};
+
+static const char * const intc_groups[] = {
+	"intc_irq0",
+	"intc_irq1",
+	"intc_irq2",
+	"intc_irq3",
+};
+
+static const char * const mmc_groups[] = {
+	"mmc_data1",
+	"mmc_data4",
+	"mmc_data8",
+	"mmc_ctrl",
+};
+
+static const char * const msiof0_groups[] = {
+	"msiof0_clk",
+	"msiof0_ctrl",
+	"msiof0_data",
+};
+
+static const char * const msiof1_groups[] = {
+	"msiof1_clk",
+	"msiof1_ctrl",
+	"msiof1_data",
+};
+
+static const char * const msiof2_groups[] = {
+	"msiof2_clk",
+	"msiof2_ctrl",
+	"msiof2_data",
+};
+
+static const char * const scif0_groups[] = {
+	"scif0_data",
+	"scif0_data_b",
+	"scif0_data_c",
+	"scif0_data_d",
+	"scif0_data_e",
+};
+
+static const char * const scif1_groups[] = {
+	"scif1_data",
+	"scif1_data_b",
+	"scif1_clk_b",
+	"scif1_data_c",
+	"scif1_data_d",
+};
+
+static const char * const scif2_groups[] = {
+	"scif2_data",
+	"scif2_data_b",
+	"scif2_clk_b",
+	"scif2_data_c",
+	"scif2_data_e",
+};
+static const char * const scif3_groups[] = {
+	"scif3_data",
+	"scif3_clk",
+	"scif3_data_b",
+	"scif3_clk_b",
+	"scif3_data_c",
+	"scif3_data_d",
+};
+static const char * const scif4_groups[] = {
+	"scif4_data",
+	"scif4_data_b",
+	"scif4_data_c",
+};
+static const char * const scif5_groups[] = {
+	"scif5_data",
+	"scif5_data_b",
+};
+static const char * const scifa0_groups[] = {
+	"scifa0_data",
+	"scifa0_data_b",
+};
+static const char * const scifa1_groups[] = {
+	"scifa1_data",
+	"scifa1_clk",
+	"scifa1_data_b",
+	"scifa1_clk_b",
+	"scifa1_data_c",
+};
+static const char * const scifa2_groups[] = {
+	"scifa2_data",
+	"scifa2_clk",
+	"scifa2_data_b",
+};
+static const char * const scifa3_groups[] = {
+	"scifa3_data",
+	"scifa3_clk",
+	"scifa3_data_b",
+	"scifa3_clk_b",
+	"scifa3_data_c",
+	"scifa3_clk_c",
+};
+static const char * const scifa4_groups[] = {
+	"scifa4_data",
+	"scifa4_data_b",
+	"scifa4_data_c",
+};
+static const char * const scifa5_groups[] = {
+	"scifa5_data",
+	"scifa5_data_b",
+	"scifa5_data_c",
+};
+static const char * const scifb0_groups[] = {
+	"scifb0_data",
+	"scifb0_clk",
+	"scifb0_ctrl",
+	"scifb0_data_b",
+	"scifb0_clk_b",
+	"scifb0_ctrl_b",
+	"scifb0_data_c",
+	"scifb0_clk_c",
+	"scifb0_data_d",
+	"scifb0_clk_d",
+};
+static const char * const scifb1_groups[] = {
+	"scifb1_data",
+	"scifb1_clk",
+	"scifb1_ctrl",
+	"scifb1_data_b",
+	"scifb1_clk_b",
+	"scifb1_data_c",
+	"scifb1_clk_c",
+	"scifb1_data_d",
+};
+static const char * const scifb2_groups[] = {
+	"scifb2_data",
+	"scifb2_clk",
+	"scifb2_ctrl",
+	"scifb2_data_b",
+	"scifb2_clk_b",
+	"scifb2_ctrl_b",
+	"scifb0_data_c",
+	"scifb2_clk_c",
+	"scifb2_data_d",
+};
+
+static const char * const sdhi0_groups[] = {
+	"sdhi0_data1",
+	"sdhi0_data4",
+	"sdhi0_ctrl",
+	"sdhi0_cd",
+	"sdhi0_wp",
+};
+
+static const char * const sdhi1_groups[] = {
+	"sdhi1_data1",
+	"sdhi1_data4",
+	"sdhi1_ctrl",
+	"sdhi1_cd",
+	"sdhi1_wp",
+};
+
+static const char * const sdhi2_groups[] = {
+	"sdhi2_data1",
+	"sdhi2_data4",
+	"sdhi2_ctrl",
+	"sdhi2_cd",
+	"sdhi2_wp",
+};
+
+static const char * const usb0_groups[] = {
+	"usb0_pwen",
+	"usb0_ovc",
+};
+static const char * const usb1_groups[] = {
+	"usb1_pwen",
+	"usb1_ovc",
+};
+
+static const struct sh_pfc_function pinmux_functions[] = {
+	SH_PFC_FUNCTION(du),
+	SH_PFC_FUNCTION(du0),
+	SH_PFC_FUNCTION(du1),
+	SH_PFC_FUNCTION(eth),
+	SH_PFC_FUNCTION(intc),
+	SH_PFC_FUNCTION(mmc),
+	SH_PFC_FUNCTION(msiof0),
+	SH_PFC_FUNCTION(msiof1),
+	SH_PFC_FUNCTION(msiof2),
+	SH_PFC_FUNCTION(scif0),
+	SH_PFC_FUNCTION(scif1),
+	SH_PFC_FUNCTION(scif2),
+	SH_PFC_FUNCTION(scif3),
+	SH_PFC_FUNCTION(scif4),
+	SH_PFC_FUNCTION(scif5),
+	SH_PFC_FUNCTION(scifa0),
+	SH_PFC_FUNCTION(scifa1),
+	SH_PFC_FUNCTION(scifa2),
+	SH_PFC_FUNCTION(scifa3),
+	SH_PFC_FUNCTION(scifa4),
+	SH_PFC_FUNCTION(scifa5),
+	SH_PFC_FUNCTION(scifb0),
+	SH_PFC_FUNCTION(scifb1),
+	SH_PFC_FUNCTION(scifb2),
+	SH_PFC_FUNCTION(sdhi0),
+	SH_PFC_FUNCTION(sdhi1),
+	SH_PFC_FUNCTION(sdhi2),
+	SH_PFC_FUNCTION(usb0),
+	SH_PFC_FUNCTION(usb1),
+};
+
+static struct pinmux_cfg_reg pinmux_config_regs[] = {
+	{ PINMUX_CFG_REG("GPSR0", 0xE6060004, 32, 1) {
+		GP_0_31_FN, FN_IP1_22_20,
+		GP_0_30_FN, FN_IP1_19_17,
+		GP_0_29_FN, FN_IP1_16_14,
+		GP_0_28_FN, FN_IP1_13_11,
+		GP_0_27_FN, FN_IP1_10_8,
+		GP_0_26_FN, FN_IP1_7_6,
+		GP_0_25_FN, FN_IP1_5_4,
+		GP_0_24_FN, FN_IP1_3_2,
+		GP_0_23_FN, FN_IP1_1_0,
+		GP_0_22_FN, FN_IP0_30_29,
+		GP_0_21_FN, FN_IP0_28_27,
+		GP_0_20_FN, FN_IP0_26_25,
+		GP_0_19_FN, FN_IP0_24_23,
+		GP_0_18_FN, FN_IP0_22_21,
+		GP_0_17_FN, FN_IP0_20_19,
+		GP_0_16_FN, FN_IP0_18_16,
+		GP_0_15_FN, FN_IP0_15,
+		GP_0_14_FN, FN_IP0_14,
+		GP_0_13_FN, FN_IP0_13,
+		GP_0_12_FN, FN_IP0_12,
+		GP_0_11_FN, FN_IP0_11,
+		GP_0_10_FN, FN_IP0_10,
+		GP_0_9_FN, FN_IP0_9,
+		GP_0_8_FN, FN_IP0_8,
+		GP_0_7_FN, FN_IP0_7,
+		GP_0_6_FN, FN_IP0_6,
+		GP_0_5_FN, FN_IP0_5,
+		GP_0_4_FN, FN_IP0_4,
+		GP_0_3_FN, FN_IP0_3,
+		GP_0_2_FN, FN_IP0_2,
+		GP_0_1_FN, FN_IP0_1,
+		GP_0_0_FN, FN_IP0_0, }
+	},
+	{ PINMUX_CFG_REG("GPSR1", 0xE6060008, 32, 1) {
+		0, 0,
+		0, 0,
+		0, 0,
+		0, 0,
+		0, 0,
+		0, 0,
+		GP_1_25_FN, FN_IP3_21_20,
+		GP_1_24_FN, FN_IP3_19_18,
+		GP_1_23_FN, FN_IP3_17_16,
+		GP_1_22_FN, FN_IP3_15_14,
+		GP_1_21_FN, FN_IP3_13_12,
+		GP_1_20_FN, FN_IP3_11_9,
+		GP_1_19_FN, FN_RD_N,
+		GP_1_18_FN, FN_IP3_8_6,
+		GP_1_17_FN, FN_IP3_5_3,
+		GP_1_16_FN, FN_IP3_2_0,
+		GP_1_15_FN, FN_IP2_29_27,
+		GP_1_14_FN, FN_IP2_26_25,
+		GP_1_13_FN, FN_IP2_24_23,
+		GP_1_12_FN, FN_EX_CS0_N,
+		GP_1_11_FN, FN_IP2_22_21,
+		GP_1_10_FN, FN_IP2_20_19,
+		GP_1_9_FN, FN_IP2_18_16,
+		GP_1_8_FN, FN_IP2_15_13,
+		GP_1_7_FN, FN_IP2_12_10,
+		GP_1_6_FN, FN_IP2_9_7,
+		GP_1_5_FN, FN_IP2_6_5,
+		GP_1_4_FN, FN_IP2_4_3,
+		GP_1_3_FN, FN_IP2_2_0,
+		GP_1_2_FN, FN_IP1_31_29,
+		GP_1_1_FN, FN_IP1_28_26,
+		GP_1_0_FN, FN_IP1_25_23, }
+	},
+	{ PINMUX_CFG_REG("GPSR2", 0xE606000C, 32, 1) {
+		GP_2_31_FN, FN_IP6_7_6,
+		GP_2_30_FN, FN_IP6_5_3,
+		GP_2_29_FN, FN_IP6_2_0,
+		GP_2_28_FN, FN_AUDIO_CLKA,
+		GP_2_27_FN, FN_IP5_31_29,
+		GP_2_26_FN, FN_IP5_28_26,
+		GP_2_25_FN, FN_IP5_25_24,
+		GP_2_24_FN, FN_IP5_23_22,
+		GP_2_23_FN, FN_IP5_21_20,
+		GP_2_22_FN, FN_IP5_19_17,
+		GP_2_21_FN, FN_IP5_16_15,
+		GP_2_20_FN, FN_IP5_14_12,
+		GP_2_19_FN, FN_IP5_11_9,
+		GP_2_18_FN, FN_IP5_8_6,
+		GP_2_17_FN, FN_IP5_5_3,
+		GP_2_16_FN, FN_IP5_2_0,
+		GP_2_15_FN, FN_IP4_30_28,
+		GP_2_14_FN, FN_IP4_27_26,
+		GP_2_13_FN, FN_IP4_25_24,
+		GP_2_12_FN, FN_IP4_23_22,
+		GP_2_11_FN, FN_IP4_21,
+		GP_2_10_FN, FN_IP4_20,
+		GP_2_9_FN, FN_IP4_19,
+		GP_2_8_FN, FN_IP4_18_16,
+		GP_2_7_FN, FN_IP4_15_13,
+		GP_2_6_FN, FN_IP4_12_10,
+		GP_2_5_FN, FN_IP4_9_8,
+		GP_2_4_FN, FN_IP4_7_5,
+		GP_2_3_FN, FN_IP4_4_2,
+		GP_2_2_FN, FN_IP4_1_0,
+		GP_2_1_FN, FN_IP3_30_28,
+		GP_2_0_FN, FN_IP3_27_25 }
+	},
+	{ PINMUX_CFG_REG("GPSR3", 0xE6060010, 32, 1) {
+		GP_3_31_FN, FN_IP9_18_17,
+		GP_3_30_FN, FN_IP9_16,
+		GP_3_29_FN, FN_IP9_15_13,
+		GP_3_28_FN, FN_IP9_12,
+		GP_3_27_FN, FN_IP9_11,
+		GP_3_26_FN, FN_IP9_10_8,
+		GP_3_25_FN, FN_IP9_7,
+		GP_3_24_FN, FN_IP9_6,
+		GP_3_23_FN, FN_IP9_5_3,
+		GP_3_22_FN, FN_IP9_2_0,
+		GP_3_21_FN, FN_IP8_30_28,
+		GP_3_20_FN, FN_IP8_27_26,
+		GP_3_19_FN, FN_IP8_25_24,
+		GP_3_18_FN, FN_IP8_23_21,
+		GP_3_17_FN, FN_IP8_20_18,
+		GP_3_16_FN, FN_IP8_17_15,
+		GP_3_15_FN, FN_IP8_14_12,
+		GP_3_14_FN, FN_IP8_11_9,
+		GP_3_13_FN, FN_IP8_8_6,
+		GP_3_12_FN, FN_IP8_5_3,
+		GP_3_11_FN, FN_IP8_2_0,
+		GP_3_10_FN, FN_IP7_29_27,
+		GP_3_9_FN, FN_IP7_26_24,
+		GP_3_8_FN, FN_IP7_23_21,
+		GP_3_7_FN, FN_IP7_20_19,
+		GP_3_6_FN, FN_IP7_18_17,
+		GP_3_5_FN, FN_IP7_16_15,
+		GP_3_4_FN, FN_IP7_14_13,
+		GP_3_3_FN, FN_IP7_12_11,
+		GP_3_2_FN, FN_IP7_10_9,
+		GP_3_1_FN, FN_IP7_8_6,
+		GP_3_0_FN, FN_IP7_5_3 }
+	},
+	{ PINMUX_CFG_REG("GPSR4", 0xE6060014, 32, 1) {
+		GP_4_31_FN, FN_IP15_5_4,
+		GP_4_30_FN, FN_IP15_3_2,
+		GP_4_29_FN, FN_IP15_1_0,
+		GP_4_28_FN, FN_IP11_8_6,
+		GP_4_27_FN, FN_IP11_5_3,
+		GP_4_26_FN, FN_IP11_2_0,
+		GP_4_25_FN, FN_IP10_31_29,
+		GP_4_24_FN, FN_IP10_28_27,
+		GP_4_23_FN, FN_IP10_26_25,
+		GP_4_22_FN, FN_IP10_24_22,
+		GP_4_21_FN, FN_IP10_21_19,
+		GP_4_20_FN, FN_IP10_18_17,
+		GP_4_19_FN, FN_IP10_16_15,
+		GP_4_18_FN, FN_IP10_14_12,
+		GP_4_17_FN, FN_IP10_11_9,
+		GP_4_16_FN, FN_IP10_8_6,
+		GP_4_15_FN, FN_IP10_5_3,
+		GP_4_14_FN, FN_IP10_2_0,
+		GP_4_13_FN, FN_IP9_31_29,
+		GP_4_12_FN, FN_VI0_DATA7_VI0_B7,
+		GP_4_11_FN, FN_VI0_DATA6_VI0_B6,
+		GP_4_10_FN, FN_VI0_DATA5_VI0_B5,
+		GP_4_9_FN, FN_VI0_DATA4_VI0_B4,
+		GP_4_8_FN, FN_IP9_28_27,
+		GP_4_7_FN, FN_VI0_DATA2_VI0_B2,
+		GP_4_6_FN, FN_VI0_DATA1_VI0_B1,
+		GP_4_5_FN, FN_VI0_DATA0_VI0_B0,
+		GP_4_4_FN, FN_IP9_26_25,
+		GP_4_3_FN, FN_IP9_24_23,
+		GP_4_2_FN, FN_IP9_22_21,
+		GP_4_1_FN, FN_IP9_20_19,
+		GP_4_0_FN, FN_VI0_CLK }
+	},
+	{ PINMUX_CFG_REG("GPSR5", 0xE6060018, 32, 1) {
+		GP_5_31_FN, FN_IP3_24_22,
+		GP_5_30_FN, FN_IP13_9_7,
+		GP_5_29_FN, FN_IP13_6_5,
+		GP_5_28_FN, FN_IP13_4_3,
+		GP_5_27_FN, FN_IP13_2_0,
+		GP_5_26_FN, FN_IP12_29_27,
+		GP_5_25_FN, FN_IP12_26_24,
+		GP_5_24_FN, FN_IP12_23_22,
+		GP_5_23_FN, FN_IP12_21_20,
+		GP_5_22_FN, FN_IP12_19_18,
+		GP_5_21_FN, FN_IP12_17_16,
+		GP_5_20_FN, FN_IP12_15_13,
+		GP_5_19_FN, FN_IP12_12_10,
+		GP_5_18_FN, FN_IP12_9_7,
+		GP_5_17_FN, FN_IP12_6_4,
+		GP_5_16_FN, FN_IP12_3_2,
+		GP_5_15_FN, FN_IP12_1_0,
+		GP_5_14_FN, FN_IP11_31_30,
+		GP_5_13_FN, FN_IP11_29_28,
+		GP_5_12_FN, FN_IP11_27,
+		GP_5_11_FN, FN_IP11_26,
+		GP_5_10_FN, FN_IP11_25,
+		GP_5_9_FN, FN_IP11_24,
+		GP_5_8_FN, FN_IP11_23,
+		GP_5_7_FN, FN_IP11_22,
+		GP_5_6_FN, FN_IP11_21,
+		GP_5_5_FN, FN_IP11_20,
+		GP_5_4_FN, FN_IP11_19,
+		GP_5_3_FN, FN_IP11_18_17,
+		GP_5_2_FN, FN_IP11_16_15,
+		GP_5_1_FN, FN_IP11_14_12,
+		GP_5_0_FN, FN_IP11_11_9 }
+	},
+	{ PINMUX_CFG_REG("GPSR6", 0xE606001C, 32, 1) {
+		GP_6_31_FN, FN_DU0_DOTCLKIN,
+		GP_6_30_FN, FN_USB1_OVC,
+		GP_6_29_FN, FN_IP14_31_29,
+		GP_6_28_FN, FN_IP14_28_26,
+		GP_6_27_FN, FN_IP14_25_23,
+		GP_6_26_FN, FN_IP14_22_20,
+		GP_6_25_FN, FN_IP14_19_17,
+		GP_6_24_FN, FN_IP14_16_14,
+		GP_6_23_FN, FN_IP14_13_11,
+		GP_6_22_FN, FN_IP14_10_8,
+		GP_6_21_FN, FN_IP14_7,
+		GP_6_20_FN, FN_IP14_6,
+		GP_6_19_FN, FN_IP14_5,
+		GP_6_18_FN, FN_IP14_4,
+		GP_6_17_FN, FN_IP14_3,
+		GP_6_16_FN, FN_IP14_2,
+		GP_6_15_FN, FN_IP14_1_0,
+		GP_6_14_FN, FN_IP13_30_28,
+		GP_6_13_FN, FN_IP13_27,
+		GP_6_12_FN, FN_IP13_26,
+		GP_6_11_FN, FN_IP13_25,
+		GP_6_10_FN, FN_IP13_24_23,
+		GP_6_9_FN, FN_IP13_22,
+		0, 0,
+		GP_6_7_FN, FN_IP13_21_19,
+		GP_6_6_FN, FN_IP13_18_16,
+		GP_6_5_FN, FN_IP13_15,
+		GP_6_4_FN, FN_IP13_14,
+		GP_6_3_FN, FN_IP13_13,
+		GP_6_2_FN, FN_IP13_12,
+		GP_6_1_FN, FN_IP13_11,
+		GP_6_0_FN, FN_IP13_10 }
+	},
+	{ PINMUX_CFG_REG("GPSR7", 0xE6060074, 32, 1) {
+		0, 0,
+		0, 0,
+		0, 0,
+		0, 0,
+		0, 0,
+		0, 0,
+		GP_7_25_FN, FN_USB1_PWEN,
+		GP_7_24_FN, FN_USB0_OVC,
+		GP_7_23_FN, FN_USB0_PWEN,
+		GP_7_22_FN, FN_IP15_14_12,
+		GP_7_21_FN, FN_IP15_11_9,
+		GP_7_20_FN, FN_IP15_8_6,
+		GP_7_19_FN, FN_IP7_2_0,
+		GP_7_18_FN, FN_IP6_29_27,
+		GP_7_17_FN, FN_IP6_26_24,
+		GP_7_16_FN, FN_IP6_23_21,
+		GP_7_15_FN, FN_IP6_20_19,
+		GP_7_14_FN, FN_IP6_18_16,
+		GP_7_13_FN, FN_IP6_15_14,
+		GP_7_12_FN, FN_IP6_13_12,
+		GP_7_11_FN, FN_IP6_11_10,
+		GP_7_10_FN, FN_IP6_9_8,
+		GP_7_9_FN, FN_IP16_11_10,
+		GP_7_8_FN, FN_IP16_9_8,
+		GP_7_7_FN, FN_IP16_7_6,
+		GP_7_6_FN, FN_IP16_5_3,
+		GP_7_5_FN, FN_IP16_2_0,
+		GP_7_4_FN, FN_IP15_29_27,
+		GP_7_3_FN, FN_IP15_26_24,
+		GP_7_2_FN, FN_IP15_23_21,
+		GP_7_1_FN, FN_IP15_20_18,
+		GP_7_0_FN, FN_IP15_17_15 }
+	},
+	{ PINMUX_CFG_REG_VAR("IPSR0", 0xE6060020, 32,
+			     1, 2, 2, 2, 2, 2, 2, 3, 1, 1, 1, 1, 1, 1, 1, 1,
+			     1, 1, 1, 1, 1, 1, 1, 1) {
+		/* IP0_31 [1] */
+		0, 0,
+		/* IP0_30_29 [2] */
+		FN_A6, FN_MSIOF1_SCK,
+		0, 0,
+		/* IP0_28_27 [2] */
+		FN_A5, FN_MSIOF0_RXD_B,
+		0, 0,
+		/* IP0_26_25 [2] */
+		FN_A4, FN_MSIOF0_TXD_B,
+		0, 0,
+		/* IP0_24_23 [2] */
+		FN_A3, FN_MSIOF0_SS2_B,
+		0, 0,
+		/* IP0_22_21 [2] */
+		FN_A2, FN_MSIOF0_SS1_B,
+		0, 0,
+		/* IP0_20_19 [2] */
+		FN_A1, FN_MSIOF0_SYNC_B,
+		0, 0,
+		/* IP0_18_16 [3] */
+		FN_A0, FN_ATAWR0_N_C, FN_MSIOF0_SCK_B, FN_SCL0_C, FN_PWM2_B,
+		0, 0, 0,
+		/* IP0_15 [1] */
+		FN_D15, 0,
+		/* IP0_14 [1] */
+		FN_D14, 0,
+		/* IP0_13 [1] */
+		FN_D13, 0,
+		/* IP0_12 [1] */
+		FN_D12, 0,
+		/* IP0_11 [1] */
+		FN_D11, 0,
+		/* IP0_10 [1] */
+		FN_D10, 0,
+		/* IP0_9 [1] */
+		FN_D9, 0,
+		/* IP0_8 [1] */
+		FN_D8, 0,
+		/* IP0_7 [1] */
+		FN_D7, 0,
+		/* IP0_6 [1] */
+		FN_D6, 0,
+		/* IP0_5 [1] */
+		FN_D5, 0,
+		/* IP0_4 [1] */
+		FN_D4, 0,
+		/* IP0_3 [1] */
+		FN_D3, 0,
+		/* IP0_2 [1] */
+		FN_D2, 0,
+		/* IP0_1 [1] */
+		FN_D1, 0,
+		/* IP0_0 [1] */
+		FN_D0, 0, }
+	},
+	{ PINMUX_CFG_REG_VAR("IPSR1", 0xE6060024, 32,
+			     3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2) {
+		/* IP1_31_29 [3] */
+		FN_A18, FN_DREQ1, FN_SCIFA1_RXD_C, 0, FN_SCIFB1_RXD_C,
+		0, 0, 0,
+		/* IP1_28_26 [3] */
+		FN_A17, FN_DACK2_B, 0, FN_SDA0_C,
+		0, 0, 0, 0,
+		/* IP1_25_23 [3] */
+		FN_A16, FN_DREQ2_B, FN_FMCLK_C, 0, FN_SCIFA1_SCK_B,
+		0, 0, 0,
+		/* IP1_22_20 [3] */
+		FN_A15, FN_BPFCLK_C,
+		0, 0, 0, 0, 0, 0,
+		/* IP1_19_17 [3] */
+		FN_A14, FN_ATADIR0_N_C, FN_FMIN, FN_FMIN_C, FN_MSIOF1_SYNC_D,
+		0, 0, 0,
+		/* IP1_16_14 [3] */
+		FN_A13, FN_ATAG0_N_C, FN_BPFCLK, FN_MSIOF1_SS1_D,
+		0, 0, 0, 0,
+		/* IP1_13_11 [3] */
+		FN_A12, FN_FMCLK, FN_SDA3_D, FN_MSIOF1_SCK_D,
+		0, 0, 0, 0,
+		/* IP1_10_8 [3] */
+		FN_A11, FN_MSIOF1_RXD, FN_SCL3_D, FN_MSIOF1_RXD_D,
+		0, 0, 0, 0,
+		/* IP1_7_6 [2] */
+		FN_A10, FN_MSIOF1_TXD, 0, FN_MSIOF1_TXD_D,
+		/* IP1_5_4 [2] */
+		FN_A9, FN_MSIOF1_SS2, FN_SDA0, 0,
+		/* IP1_3_2 [2] */
+		FN_A8, FN_MSIOF1_SS1, FN_SCL0, 0,
+		/* IP1_1_0 [2] */
+		FN_A7, FN_MSIOF1_SYNC,
+		0, 0, }
+	},
+	{ PINMUX_CFG_REG_VAR("IPSR2", 0xE6060028, 32,
+			     2, 3, 2, 2, 2, 2, 3, 3, 3, 3, 2, 2, 3) {
+		/* IP2_31_20 [2] */
+		0, 0, 0, 0,
+		/* IP2_29_27 [3] */
+		FN_EX_CS3_N, FN_ATADIR0_N, FN_MSIOF2_TXD,
+		FN_ATAG0_N, 0, FN_EX_WAIT1,
+		0, 0,
+		/* IP2_26_25 [2] */
+		FN_EX_CS2_N, FN_ATAWR0_N, FN_MSIOF2_SYNC, 0,
+		/* IP2_24_23 [2] */
+		FN_EX_CS1_N, FN_MSIOF2_SCK, 0, 0,
+		/* IP2_22_21 [2] */
+		FN_CS1_N_A26, FN_ATADIR0_N_B, FN_SDA1, 0,
+		/* IP2_20_19 [2] */
+		FN_CS0_N, FN_ATAG0_N_B, FN_SCL1, 0,
+		/* IP2_18_16 [3] */
+		FN_A25, FN_DACK2, FN_SSL, FN_DREQ1_C, FN_RX1, FN_SCIFA1_RXD,
+		0, 0,
+		/* IP2_15_13 [3] */
+		FN_A24, FN_DREQ2, FN_IO3, FN_TX1, FN_SCIFA1_TXD,
+		0, 0, 0,
+		/* IP2_12_0 [3] */
+		FN_A23, FN_IO2, FN_BPFCLK_B, FN_RX0, FN_SCIFA0_RXD,
+		0, 0, 0,
+		/* IP2_9_7 [3] */
+		FN_A22, FN_MISO_IO1, FN_FMCLK_B, FN_TX0, FN_SCIFA0_TXD,
+		0, 0, 0,
+		/* IP2_6_5 [2] */
+		FN_A21, FN_ATAWR0_N_B, FN_MOSI_IO0, 0,
+		/* IP2_4_3 [2] */
+		FN_A20, FN_SPCLK, 0, 0,
+		/* IP2_2_0 [3] */
+		FN_A19, FN_DACK1, FN_SCIFA1_TXD_C, 0,
+		FN_SCIFB1_TXD_C, 0, FN_SCIFB1_SCK_B, 0, }
+	},
+	{ PINMUX_CFG_REG_VAR("IPSR3", 0xE606002C, 32,
+			     1, 3, 3, 3, 2, 2, 2, 2, 2, 3, 3, 3, 3) {
+		/* IP3_31 [1] */
+		0, 0,
+		/* IP3_30_28 [3] */
+		FN_SSI_WS0129, FN_HTX0_C, FN_HTX2_C,
+		FN_SCIFB0_TXD_C, FN_SCIFB2_TXD_C,
+		0, 0, 0,
+		/* IP3_27_25 [3] */
+		FN_SSI_SCK0129, FN_HRX0_C, FN_HRX2_C,
+		FN_SCIFB0_RXD_C, FN_SCIFB2_RXD_C,
+		0, 0, 0,
+		/* IP3_24_22 [3] */
+		FN_SPEEDIN, 0, FN_HSCK0_C, FN_HSCK2_C, FN_SCIFB0_SCK_B,
+		FN_SCIFB2_SCK_B, FN_DREQ2_C, FN_HTX2_D,
+		/* IP3_21_20 [2] */
+		FN_DACK0, FN_DRACK0, FN_REMOCON, 0,
+		/* IP3_19_18 [2] */
+		FN_DREQ0, FN_PWM3, FN_TPU_TO3, 0,
+		/* IP3_17_16 [2] */
+		FN_EX_WAIT0, FN_HRTS2_N_B, FN_SCIFB0_CTS_N_B, 0,
+		/* IP3_15_14 [2] */
+		FN_WE1_N, FN_ATARD0_N_B, FN_HTX2_B, FN_SCIFB0_RTS_N_B,
+		/* IP3_13_12 [2] */
+		FN_WE0_N, FN_HCTS2_N_B, FN_SCIFB0_TXD_B, 0,
+		/* IP3_11_9 [3] */
+		FN_RD_WR_N, FN_HRX2_B, FN_FMIN_B, FN_SCIFB0_RXD_B, FN_DREQ1_D,
+		0, 0, 0,
+		/* IP3_8_6 [3] */
+		FN_BS_N, FN_ATACS10_N, FN_MSIOF2_SS2, FN_HTX1_B,
+		FN_SCIFB1_TXD_B, FN_PWM2, FN_TPU_TO2, 0,
+		/* IP3_5_3 [3] */
+		FN_EX_CS5_N, FN_ATACS00_N, FN_MSIOF2_SS1, FN_HRX1_B,
+		FN_SCIFB1_RXD_B, FN_PWM1, FN_TPU_TO1, 0,
+		/* IP3_2_0 [3] */
+		FN_EX_CS4_N, FN_ATARD0_N, FN_MSIOF2_RXD, 0, FN_EX_WAIT2,
+		0, 0, 0, }
+	},
+	{ PINMUX_CFG_REG_VAR("IPSR4", 0xE6060030, 32,
+			     1, 3, 2, 2, 2, 1, 1, 1, 3, 3, 3, 2, 3, 3, 2) {
+		/* IP4_31 [1] */
+		0, 0,
+		/* IP4_30_28 [3] */
+		FN_SSI_SCK5, FN_MSIOF1_SCK_C, FN_TS_SDATA0, FN_GLO_I0,
+		FN_MSIOF2_SYNC_D, FN_VI1_R2_B,
+		0, 0,
+		/* IP4_27_26 [2] */
+		FN_SSI_SDATA4, FN_MSIOF2_SCK_D, 0, 0,
+		/* IP4_25_24 [2] */
+		FN_SSI_WS4, FN_GLO_RFON_D, 0, 0,
+		/* IP4_23_22 [2] */
+		FN_SSI_SCK4, FN_GLO_SS_D, 0, 0,
+		/* IP4_21 [1] */
+		FN_SSI_SDATA3, 0,
+		/* IP4_20 [1] */
+		FN_SSI_WS34, 0,
+		/* IP4_19 [1] */
+		FN_SSI_SCK34, 0,
+		/* IP4_18_16 [3] */
+		FN_SSI_SDATA2, FN_GPS_MAG_B, FN_TX2_E, FN_HRTS1_N_E,
+		0, 0, 0, 0,
+		/* IP4_15_13 [3] */
+		FN_SSI_WS2, FN_SDA2, FN_GPS_SIGN_B, FN_RX2_E,
+		FN_GLO_Q1_D, FN_HCTS1_N_E,
+		0, 0,
+		/* IP4_12_10 [3] */
+		FN_SSI_SCK2, FN_SCL2, FN_GPS_CLK_B, FN_GLO_Q0_D, FN_HSCK1_E,
+		0, 0, 0,
+		/* IP4_9_8 [2] */
+		FN_SSI_SDATA1, FN_SDA1_B, FN_SDA8_B, FN_MSIOF2_RXD_C,
+		/* IP4_7_5 [3] */
+		FN_SSI_WS1, FN_SCL1_B, FN_SCL8_B, FN_MSIOF2_TXD_C, FN_GLO_I1_D,
+		0, 0, 0,
+		/* IP4_4_2 [3] */
+		FN_SSI_SCK1, FN_SDA0_B, FN_SDA7_B,
+		FN_MSIOF2_SYNC_C, FN_GLO_I0_D,
+		0, 0, 0,
+		/* IP4_1_0 [2] */
+		FN_SSI_SDATA0, FN_SCL0_B, FN_SCL7_B, FN_MSIOF2_SCK_C, }
+	},
+	{ PINMUX_CFG_REG_VAR("IPSR5", 0xE6060034, 32,
+			     3, 3, 2, 2, 2, 3, 2, 3, 3, 3, 3, 3) {
+		/* IP5_31_29 [3] */
+		FN_SSI_SDATA9, FN_RX3_D, FN_CAN0_RX_D,
+		0, 0, 0, 0, 0,
+		/* IP5_28_26 [3] */
+		FN_SSI_WS9, FN_TX3_D, FN_CAN0_TX_D, FN_GLO_SDATA_D,
+		0, 0, 0, 0,
+		/* IP5_25_24 [2] */
+		FN_SSI_SCK9, FN_RX1_D, FN_GLO_SCLK_D, 0,
+		/* IP5_23_22 [2] */
+		FN_SSI_SDATA8, FN_TX1_D, FN_STP_ISSYNC_0_B, 0,
+		/* IP5_21_20 [2] */
+		FN_SSI_SDATA7, FN_RX0_D, FN_STP_ISEN_0_B, 0,
+		/* IP5_19_17 [3] */
+		FN_SSI_WS78, FN_TX0_D, FN_STP_ISD_0_B, FN_GLO_RFON,
+		0, 0, 0, 0,
+		/* IP5_16_15 [2] */
+		FN_SSI_SCK78, FN_STP_ISCLK_0_B, FN_GLO_SS, 0,
+		/* IP5_14_12 [3] */
+		FN_SSI_SDATA6, FN_STP_IVCXO27_0_B, FN_GLO_SDATA, FN_VI1_R7_B,
+		0, 0, 0, 0,
+		/* IP5_11_9 [3] */
+		FN_SSI_WS6, FN_GLO_SCLK, FN_MSIOF2_SS2_D, FN_VI1_R6_B,
+		0, 0, 0, 0,
+		/* IP5_8_6 [3] */
+		FN_SSI_SCK6, FN_MSIOF1_RXD_C, FN_TS_SPSYNC0, FN_GLO_Q1,
+		FN_MSIOF2_RXD_D, FN_VI1_R5_B,
+		0, 0,
+		/* IP5_5_3 [3] */
+		FN_SSI_SDATA5, FN_MSIOF1_TXD_C, FN_TS_SDEN0, FN_GLO_Q0,
+		FN_MSIOF2_SS1_D, FN_VI1_R4_B,
+		0, 0,
+		/* IP5_2_0 [3] */
+		FN_SSI_WS5, FN_MSIOF1_SYNC_C, FN_TS_SCK0, FN_GLO_I1,
+		FN_MSIOF2_TXD_D, FN_VI1_R3_B,
+		0, 0, }
+	},
+	{ PINMUX_CFG_REG_VAR("IPSR6", 0xE6060038, 32,
+			     2, 3, 3, 3, 2, 3, 2, 2, 2, 2, 2, 3, 3) {
+		/* IP6_31_30 [2] */
+		0, 0, 0, 0,
+		/* IP6_29_27 [3] */
+		FN_IRQ8, FN_HRTS1_N_C, FN_MSIOF1_RXD_B,
+		FN_GPS_SIGN_C, FN_GPS_SIGN_D,
+		0, 0, 0,
+		/* IP6_26_24 [3] */
+		FN_IRQ7, FN_HCTS1_N_C, FN_MSIOF1_TXD_B,
+		FN_GPS_CLK_C, FN_GPS_CLK_D,
+		0, 0, 0,
+		/* IP6_23_21 [3] */
+		FN_IRQ6, FN_HSCK1_C, FN_MSIOF1_SS2_B,
+		FN_SDA1_E, FN_MSIOF2_SYNC_E,
+		0, 0, 0,
+		/* IP6_20_19 [2] */
+		FN_IRQ5, FN_HTX1_C, FN_SCL1_E, FN_MSIOF2_SCK_E,
+		/* IP6_18_16 [3] */
+		FN_IRQ4, FN_HRX1_C, FN_SDA4_C, FN_MSIOF2_RXD_E, FN_INTC_IRQ4_N,
+		0, 0, 0,
+		/* IP6_15_14 [2] */
+		FN_IRQ3, FN_SCL4_C, FN_MSIOF2_TXD_E, FN_INTC_IRQ3_N,
+		/* IP6_13_12 [2] */
+		FN_IRQ2, FN_SCIFB1_TXD_D, FN_INTC_IRQ2_N, 0,
+		/* IP6_11_10 [2] */
+		FN_IRQ1, FN_SCIFB1_SCK_C, FN_INTC_IRQ1_N, 0,
+		/* IP6_9_8 [2] */
+		FN_IRQ0, FN_SCIFB1_RXD_D, FN_INTC_IRQ0_N, 0,
+		/* IP6_7_6 [2] */
+		FN_AUDIO_CLKOUT, FN_MSIOF1_SS1_B, FN_TX2, FN_SCIFA2_TXD,
+		/* IP6_5_3 [3] */
+		FN_AUDIO_CLKC, FN_SCIFB0_SCK_C, FN_MSIOF1_SYNC_B, FN_RX2,
+		FN_SCIFA2_RXD, FN_FMIN_E,
+		0, 0,
+		/* IP6_2_0 [3] */
+		FN_AUDIO_CLKB, FN_STP_OPWM_0_B, FN_MSIOF1_SCK_B,
+		FN_SCIF_CLK, 0, FN_BPFCLK_E,
+		0, 0, }
+	},
+	{ PINMUX_CFG_REG_VAR("IPSR7", 0xE606003C, 32,
+			     2, 3, 3, 3, 2, 2, 2, 2, 2, 2, 3, 3, 3) {
+		/* IP7_31_30 [2] */
+		0, 0, 0, 0,
+		/* IP7_29_27 [3] */
+		FN_DU1_DG2, FN_LCDOUT10, FN_VI1_DATA4_B, FN_SCIF1_SCK_B,
+		FN_SCIFA1_SCK, FN_SSI_SCK78_B,
+		0, 0,
+		/* IP7_26_24 [3] */
+		FN_DU1_DG1, FN_LCDOUT9, FN_VI1_DATA3_B, FN_RX1_B,
+		FN_SCIFA1_RXD_B, FN_MSIOF2_SS2_B,
+		0, 0,
+		/* IP7_23_21 [3] */
+		FN_DU1_DG0, FN_LCDOUT8, FN_VI1_DATA2_B, FN_TX1_B,
+		FN_SCIFA1_TXD_B, FN_MSIOF2_SS1_B,
+		0, 0,
+		/* IP7_20_19 [2] */
+		FN_DU1_DR7, FN_LCDOUT7, FN_SSI_SDATA1_B, 0,
+		/* IP7_18_17 [2] */
+		FN_DU1_DR6, FN_LCDOUT6, FN_SSI_WS1_B, 0,
+		/* IP7_16_15 [2] */
+		FN_DU1_DR5, FN_LCDOUT5, FN_SSI_SCK1_B, 0,
+		/* IP7_14_13 [2] */
+		FN_DU1_DR4, FN_LCDOUT4, FN_SSI_SDATA0_B, 0,
+		/* IP7_12_11 [2] */
+		FN_DU1_DR3, FN_LCDOUT3, FN_SSI_WS0129_B, 0,
+		/* IP7_10_9 [2] */
+		FN_DU1_DR2, FN_LCDOUT2, FN_SSI_SCK0129_B, 0,
+		/* IP7_8_6 [3] */
+		FN_DU1_DR1, FN_LCDOUT1, FN_VI1_DATA1_B, FN_RX0_B,
+		FN_SCIFA0_RXD_B, FN_MSIOF2_SYNC_B,
+		0, 0,
+		/* IP7_5_3 [3] */
+		FN_DU1_DR0, FN_LCDOUT0, FN_VI1_DATA0_B, FN_TX0_B,
+		FN_SCIFA0_TXD_B, FN_MSIOF2_SCK_B,
+		0, 0,
+		/* IP7_2_0 [3] */
+		FN_IRQ9, FN_DU1_DOTCLKIN_B, FN_CAN_CLK_D, FN_GPS_MAG_C,
+		FN_SCIF_CLK_B, FN_GPS_MAG_D,
+		0, 0, }
+	},
+	{ PINMUX_CFG_REG_VAR("IPSR8", 0xE6060040, 32,
+			     1, 3, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3) {
+		/* IP8_31 [1] */
+		0, 0,
+		/* IP8_30_28 [3] */
+		FN_DU1_DB5, FN_LCDOUT21, FN_TX3, FN_SCIFA3_TXD, FN_CAN1_TX,
+		0, 0, 0,
+		/* IP8_27_26 [2] */
+		FN_DU1_DB4, FN_LCDOUT20, FN_VI1_FIELD_B, FN_CAN1_RX,
+		/* IP8_25_24 [2] */
+		FN_DU1_DB3, FN_LCDOUT19, FN_VI1_CLKENB_B, 0,
+		/* IP8_23_21 [3] */
+		FN_DU1_DB2, FN_LCDOUT18, FN_VI1_VSYNC_N_B, FN_SCIF2_SCK_B,
+		FN_SCIFA2_SCK, FN_SSI_SDATA9_B,
+		0, 0,
+		/* IP8_20_18 [3] */
+		FN_DU1_DB1, FN_LCDOUT17, FN_VI1_HSYNC_N_B, FN_RX2_B,
+		FN_SCIFA2_RXD_B, FN_MSIOF2_RXD_B,
+		0, 0,
+		/* IP8_17_15 [3] */
+		FN_DU1_DB0, FN_LCDOUT16, FN_VI1_CLK_B, FN_TX2_B,
+		FN_SCIFA2_TXD_B, FN_MSIOF2_TXD_B,
+		0, 0,
+		/* IP8_14_12 [3] */
+		FN_DU1_DG7, FN_LCDOUT15, FN_HTX0_B,
+		FN_SCIFB2_RTS_N_B, FN_SSI_WS9_B,
+		0, 0, 0,
+		/* IP8_11_9 [3] */
+		FN_DU1_DG6, FN_LCDOUT14, FN_HRTS0_N_B,
+		FN_SCIFB2_CTS_N_B, FN_SSI_SCK9_B,
+		0, 0, 0,
+		/* IP8_8_6 [3] */
+		FN_DU1_DG5, FN_LCDOUT13, FN_VI1_DATA7_B, FN_HCTS0_N_B,
+		FN_SCIFB2_TXD_B, FN_SSI_SDATA8_B,
+		0, 0,
+		/* IP8_5_3 [3] */
+		FN_DU1_DG4, FN_LCDOUT12, FN_VI1_DATA6_B, FN_HRX0_B,
+		FN_SCIFB2_RXD_B, FN_SSI_SDATA7_B,
+		0, 0,
+		/* IP8_2_0 [3] */
+		FN_DU1_DG3, FN_LCDOUT11, FN_VI1_DATA5_B, 0, FN_SSI_WS78_B,
+		0, 0, 0, }
+	},
+	{ PINMUX_CFG_REG_VAR("IPSR9", 0xE6060044, 32,
+			     3, 2, 2, 2, 2, 2, 2, 1, 3, 1, 1, 3, 1, 1, 3, 3) {
+		/* IP9_31_29 [3] */
+		FN_VI0_G0, FN_SCL8, FN_STP_IVCXO27_0_C, FN_SCL4,
+		FN_HCTS2_N, FN_SCIFB2_CTS_N, FN_ATAWR1_N, 0,
+		/* IP9_28_27 [2] */
+		FN_VI0_DATA3_VI0_B3, FN_SCIF3_SCK_B, FN_SCIFA3_SCK_B, 0,
+		/* IP9_26_25 [2] */
+		FN_VI0_VSYNC_N, FN_RX5, FN_SCIFA5_RXD, FN_TS_SPSYNC0_D,
+		/* IP9_24_23 [2] */
+		FN_VI0_HSYNC_N, FN_TX5, FN_SCIFA5_TXD, FN_TS_SDEN0_D,
+		/* IP9_22_21 [2] */
+		FN_VI0_FIELD, FN_RX4, FN_SCIFA4_RXD, FN_TS_SCK0_D,
+		/* IP9_20_19 [2] */
+		FN_VI0_CLKENB, FN_TX4, FN_SCIFA4_TXD, FN_TS_SDATA0_D,
+		/* IP9_18_17 [2] */
+		FN_DU1_CDE, FN_QPOLB, FN_PWM4_B, 0,
+		/* IP9_16 [1] */
+		FN_DU1_DISP, FN_QPOLA,
+		/* IP9_15_13 [3] */
+		FN_DU1_EXODDF_DU1_ODDF_DISP_CDE, FN_QCPV_QDE,
+		FN_CAN0_RX, FN_RX3_B, FN_SDA2_B,
+		0, 0, 0,
+		/* IP9_12 [1] */
+		FN_DU1_EXVSYNC_DU1_VSYNC, FN_QSTB_QHE,
+		/* IP9_11 [1] */
+		FN_DU1_EXHSYNC_DU1_HSYNC, FN_QSTH_QHS,
+		/* IP9_10_8 [3] */
+		FN_DU1_DOTCLKOUT1, FN_QSTVB_QVE, FN_CAN0_TX,
+		FN_TX3_B, FN_SCL2_B, FN_PWM4,
+		0, 0,
+		/* IP9_7 [1] */
+		FN_DU1_DOTCLKOUT0, FN_QCLK,
+		/* IP9_6 [1] */
+		FN_DU1_DOTCLKIN, FN_QSTVA_QVS,
+		/* IP9_5_3 [3] */
+		FN_DU1_DB7, FN_LCDOUT23, FN_SDA3_C,
+		FN_SCIF3_SCK, FN_SCIFA3_SCK,
+		0, 0, 0,
+		/* IP9_2_0 [3] */
+		FN_DU1_DB6, FN_LCDOUT22, FN_SCL3_C, FN_RX3, FN_SCIFA3_RXD,
+		0, 0, 0, }
+	},
+	{ PINMUX_CFG_REG_VAR("IPSR10", 0xE6060048, 32,
+			     3, 2, 2, 3, 3, 2, 2, 3, 3, 3, 3, 3) {
+		/* IP10_31_29 [3] */
+		FN_VI0_R4, FN_VI2_DATA5, FN_GLO_SCLK_B, FN_TX0_C, FN_SCL1_D,
+		0, 0, 0,
+		/* IP10_28_27 [2] */
+		FN_VI0_R3, FN_VI2_DATA4, FN_GLO_Q1_B, FN_TS_SPSYNC0_C,
+		/* IP10_26_25 [2] */
+		FN_VI0_R2, FN_VI2_DATA3, FN_GLO_Q0_B, FN_TS_SDEN0_C,
+		/* IP10_24_22 [3] */
+		FN_VI0_R1, FN_VI2_DATA2, FN_GLO_I1_B, FN_TS_SCK0_C, FN_ATAG1_N,
+		0, 0, 0,
+		/* IP10_21_29 [3] */
+		FN_VI0_R0, FN_VI2_DATA1, FN_GLO_I0_B,
+		FN_TS_SDATA0_C, FN_ATACS11_N,
+		0, 0, 0,
+		/* IP10_18_17 [2] */
+		FN_VI0_G7, FN_VI2_DATA0, FN_FMIN_D, 0,
+		/* IP10_16_15 [2] */
+		FN_VI0_G6, FN_VI2_CLK, FN_BPFCLK_D, 0,
+		/* IP10_14_12 [3] */
+		FN_VI0_G5, FN_VI2_FIELD, FN_STP_OPWM_0_C, FN_FMCLK_D,
+		FN_CAN0_TX_E, FN_HTX1_D, FN_SCIFB0_TXD_D, 0,
+		/* IP10_11_9 [3] */
+		FN_VI0_G4, FN_VI2_CLKENB, FN_STP_ISSYNC_0_C,
+		FN_HTX2, FN_SCIFB2_TXD, FN_SCIFB0_SCK_D,
+		0, 0,
+		/* IP10_8_6 [3] */
+		FN_VI0_G3, FN_VI2_VSYNC_N, FN_STP_ISEN_0_C, FN_SDA3_B,
+		FN_HRX2, FN_SCIFB2_RXD, FN_ATACS01_N, 0,
+		/* IP10_5_3 [3] */
+		FN_VI0_G2, FN_VI2_HSYNC_N, FN_STP_ISD_0_C, FN_SCL3_B,
+		FN_HSCK2, FN_SCIFB2_SCK, FN_ATARD1_N, 0,
+		/* IP10_2_0 [3] */
+		FN_VI0_G1, FN_SDA8, FN_STP_ISCLK_0_C, FN_SDA4,
+		FN_HRTS2_N, FN_SCIFB2_RTS_N, FN_ATADIR1_N, 0, }
+	},
+	{ PINMUX_CFG_REG_VAR("IPSR11", 0xE606004C, 32,
+			     2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2,
+			     3, 3, 3, 3, 3) {
+		/* IP11_31_30 [2] */
+		FN_ETH_CRS_DV, FN_AVB_LINK, FN_SDA2_C, 0,
+		/* IP11_29_28 [2] */
+		FN_ETH_MDIO, FN_AVB_RX_CLK, FN_SCL2_C, 0,
+		/* IP11_27 [1] */
+		FN_VI1_DATA7, FN_AVB_MDC,
+		/* IP11_26 [1] */
+		FN_VI1_DATA6, FN_AVB_MAGIC,
+		/* IP11_25 [1] */
+		FN_VI1_DATA5, FN_AVB_RX_DV,
+		/* IP11_24 [1] */
+		FN_VI1_DATA4, FN_AVB_MDIO,
+		/* IP11_23 [1] */
+		FN_VI1_DATA3, FN_AVB_RX_ER,
+		/* IP11_22 [1] */
+		FN_VI1_DATA2, FN_AVB_RXD7,
+		/* IP11_21 [1] */
+		FN_VI1_DATA1, FN_AVB_RXD6,
+		/* IP11_20 [1] */
+		FN_VI1_DATA0, FN_AVB_RXD5,
+		/* IP11_19 [1] */
+		FN_VI1_CLK, FN_AVB_RXD4,
+		/* IP11_18_17 [2] */
+		FN_VI1_FIELD, FN_AVB_RXD3, FN_TS_SPSYNC0_B, 0,
+		/* IP11_16_15 [2] */
+		FN_VI1_CLKENB, FN_AVB_RXD2, FN_TS_SDEN0_B, 0,
+		/* IP11_14_12 [3] */
+		FN_VI1_VSYNC_N, FN_AVB_RXD1, FN_TS_SCK0_B,
+		FN_RX4_B, FN_SCIFA4_RXD_B,
+		0, 0, 0,
+		/* IP11_11_9 [3] */
+		FN_VI1_HSYNC_N, FN_AVB_RXD0, FN_TS_SDATA0_B,
+		FN_TX4_B, FN_SCIFA4_TXD_B,
+		0, 0, 0,
+		/* IP11_8_6 [3] */
+		FN_VI0_R7, FN_GLO_RFON_B, FN_RX1_C, FN_CAN0_RX_E,
+		FN_SDA4_B, FN_HRX1_D, FN_SCIFB0_RXD_D, 0,
+		/* IP11_5_3 [3] */
+		FN_VI0_R6, FN_VI2_DATA7, FN_GLO_SS_B, FN_TX1_C, FN_SCL4_B,
+		0, 0, 0,
+		/* IP11_2_0 [3] */
+		FN_VI0_R5, FN_VI2_DATA6, FN_GLO_SDATA_B, FN_RX0_C, FN_SDA1_D,
+		0, 0, 0, }
+	},
+	{ PINMUX_CFG_REG_VAR("IPSR12", 0xE6060050, 32,
+			     2, 3, 3, 2, 2, 2, 2, 3, 3, 3, 3, 2, 2) {
+		/* IP12_31_30 [2] */
+		0, 0, 0, 0,
+		/* IP12_29_27 [3] */
+		FN_STP_ISCLK_0, FN_AVB_TX_EN, FN_SCIFB2_RXD_D,
+		FN_ADICS_SAMP_B, FN_MSIOF0_SCK_C,
+		0, 0, 0,
+		/* IP12_26_24 [3] */
+		FN_STP_IVCXO27_0, FN_AVB_TXD7, FN_SCIFB2_TXD_D,
+		FN_ADIDATA_B, FN_MSIOF0_SYNC_C,
+		0, 0, 0,
+		/* IP12_23_22 [2] */
+		FN_ETH_MDC, FN_AVB_TXD6, FN_IERX_C, 0,
+		/* IP12_21_20 [2] */
+		FN_ETH_TXD0, FN_AVB_TXD5, FN_IECLK_C, 0,
+		/* IP12_19_18 [2] */
+		FN_ETH_MAGIC, FN_AVB_TXD4, FN_IETX_C, 0,
+		/* IP12_17_16 [2] */
+		FN_ETH_TX_EN, FN_AVB_TXD3, FN_TCLK1_B, FN_CAN_CLK_B,
+		/* IP12_15_13 [3] */
+		FN_ETH_TXD1, FN_AVB_TXD2, FN_SCIFA3_TXD_B,
+		FN_CAN1_TX_C, FN_MSIOF1_TXD_E,
+		0, 0, 0,
+		/* IP12_12_10 [3] */
+		FN_ETH_REFCLK, FN_AVB_TXD1, FN_SCIFA3_RXD_B,
+		FN_CAN1_RX_C, FN_MSIOF1_SYNC_E,
+		0, 0, 0,
+		/* IP12_9_7 [3] */
+		FN_ETH_LINK, FN_AVB_TXD0, FN_CAN0_RX_C,
+		FN_SDA2_D, FN_MSIOF1_SCK_E,
+		0, 0, 0,
+		/* IP12_6_4 [3] */
+		FN_ETH_RXD1, FN_AVB_GTXREFCLK, FN_CAN0_TX_C,
+		FN_SCL2_D, FN_MSIOF1_RXD_E,
+		0, 0, 0,
+		/* IP12_3_2 [2] */
+		FN_ETH_RXD0, FN_AVB_PHY_INT, FN_SDA3, FN_SDA7,
+		/* IP12_1_0 [2] */
+		FN_ETH_RX_ER, FN_AVB_CRS, FN_SCL3, FN_SCL7, }
+	},
+	{ PINMUX_CFG_REG_VAR("IPSR13", 0xE6060054, 32,
+			     1, 3, 1, 1, 1, 2, 1, 3, 3, 1, 1, 1, 1, 1, 1,
+			     3, 2, 2, 3) {
+		/* IP13_31 [1] */
+		0, 0,
+		/* IP13_30_28 [3] */
+		FN_SD1_CD, FN_PWM0, FN_TPU_TO0, FN_SCL1_C,
+		0, 0, 0, 0,
+		/* IP13_27 [1] */
+		FN_SD1_DATA3, FN_IERX_B,
+		/* IP13_26 [1] */
+		FN_SD1_DATA2, FN_IECLK_B,
+		/* IP13_25 [1] */
+		FN_SD1_DATA1, FN_IETX_B,
+		/* IP13_24_23 [2] */
+		FN_SD1_DATA0, FN_SPEEDIN_B, 0, 0,
+		/* IP13_22 [1] */
+		FN_SD1_CMD, FN_REMOCON_B,
+		/* IP13_21_19 [3] */
+		FN_SD0_WP, FN_MMC_D7_B, FN_SIM0_D_B, FN_CAN0_TX_F,
+		FN_SCIFA5_RXD_B, FN_RX3_C,
+		0, 0,
+		/* IP13_18_16 [3] */
+		FN_SD0_CD, FN_MMC_D6_B, FN_SIM0_RST_B, FN_CAN0_RX_F,
+		FN_SCIFA5_TXD_B, FN_TX3_C,
+		0, 0,
+		/* IP13_15 [1] */
+		FN_SD0_DATA3, FN_SSL_B,
+		/* IP13_14 [1] */
+		FN_SD0_DATA2, FN_IO3_B,
+		/* IP13_13 [1] */
+		FN_SD0_DATA1, FN_IO2_B,
+		/* IP13_12 [1] */
+		FN_SD0_DATA0, FN_MISO_IO1_B,
+		/* IP13_11 [1] */
+		FN_SD0_CMD, FN_MOSI_IO0_B,
+		/* IP13_10 [1] */
+		FN_SD0_CLK, FN_SPCLK_B,
+		/* IP13_9_7 [3] */
+		FN_STP_OPWM_0, FN_AVB_GTX_CLK, FN_PWM0_B,
+		FN_ADICHS2_B, FN_MSIOF0_TXD_C,
+		0, 0, 0,
+		/* IP13_6_5 [2] */
+		FN_STP_ISSYNC_0, FN_AVB_COL, FN_ADICHS1_B, FN_MSIOF0_RXD_C,
+		/* IP13_4_3 [2] */
+		FN_STP_ISEN_0, FN_AVB_TX_CLK, FN_ADICHS0_B, FN_MSIOF0_SS2_C,
+		/* IP13_2_0 [3] */
+		FN_STP_ISD_0, FN_AVB_TX_ER, FN_SCIFB2_SCK_C,
+		FN_ADICLK_B, FN_MSIOF0_SS1_C,
+		0, 0, 0, }
+	},
+	{ PINMUX_CFG_REG_VAR("IPSR14", 0xE6060058, 32,
+			     3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 2) {
+		/* IP14_31_29 [3] */
+		FN_MSIOF0_SS2, FN_MMC_D7, FN_ADICHS2, FN_RX0_E,
+		FN_VI1_VSYNC_N_C, FN_SDA7_C, FN_VI1_G5_B, 0,
+		/* IP14_28_26 [3] */
+		FN_MSIOF0_SS1, FN_MMC_D6, FN_ADICHS1, FN_TX0_E,
+		FN_VI1_HSYNC_N_C, FN_SCL7_C, FN_VI1_G4_B, 0,
+		/* IP14_25_23 [3] */
+		FN_MSIOF0_RXD, FN_ADICHS0, 0, FN_VI1_DATA0_C, FN_VI1_G3_B,
+		0, 0, 0,
+		/* IP14_22_20 [3] */
+		FN_MSIOF0_TXD, FN_ADICLK, 0, FN_VI1_FIELD_C, FN_VI1_G2_B,
+		0, 0, 0,
+		/* IP14_19_17 [3] */
+		FN_MSIOF0_SYNC, FN_TX2_C, FN_ADICS_SAMP, 0,
+		FN_VI1_CLKENB_C, FN_VI1_G1_B,
+		0, 0,
+		/* IP14_16_14 [3] */
+		FN_MSIOF0_SCK, FN_RX2_C, FN_ADIDATA, 0,
+		FN_VI1_CLK_C, FN_VI1_G0_B,
+		0, 0,
+		/* IP14_13_11 [3] */
+		FN_SD2_WP, FN_MMC_D5, FN_SDA8_C, FN_RX5_B, FN_SCIFA5_RXD_C,
+		0, 0, 0,
+		/* IP14_10_8 [3] */
+		FN_SD2_CD, FN_MMC_D4, FN_SCL8_C, FN_TX5_B, FN_SCIFA5_TXD_C,
+		0, 0, 0,
+		/* IP14_7 [1] */
+		FN_SD2_DATA3, FN_MMC_D3,
+		/* IP14_6 [1] */
+		FN_SD2_DATA2, FN_MMC_D2,
+		/* IP14_5 [1] */
+		FN_SD2_DATA1, FN_MMC_D1,
+		/* IP14_4 [1] */
+		FN_SD2_DATA0, FN_MMC_D0,
+		/* IP14_3 [1] */
+		FN_SD2_CMD, FN_MMC_CMD,
+		/* IP14_2 [1] */
+		FN_SD2_CLK, FN_MMC_CLK,
+		/* IP14_1_0 [2] */
+		FN_SD1_WP, FN_PWM1_B, FN_SDA1_C, 0, }
+	},
+	{ PINMUX_CFG_REG_VAR("IPSR15", 0xE606005C, 32,
+			     2, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2) {
+		/* IP15_31_30 [2] */
+		0, 0, 0, 0,
+		/* IP15_29_27 [3] */
+		FN_HTX0, FN_SCIFB0_TXD, 0, FN_GLO_SCLK_C,
+		FN_CAN0_TX_B, FN_VI1_DATA5_C,
+		0, 0,
+		/* IP15_26_24 [3] */
+		FN_HRX0, FN_SCIFB0_RXD, 0, FN_GLO_Q1_C,
+		FN_CAN0_RX_B, FN_VI1_DATA4_C,
+		0, 0,
+		/* IP15_23_21 [3] */
+		FN_HSCK0, FN_SCIFB0_SCK, 0, FN_GLO_Q0_C, FN_CAN_CLK,
+		FN_TCLK2, FN_VI1_DATA3_C, 0,
+		/* IP15_20_18 [3] */
+		FN_HRTS0_N, FN_SCIFB0_RTS_N, 0, FN_GLO_I1_C, FN_VI1_DATA2_C,
+		0, 0, 0,
+		/* IP15_17_15 [3] */
+		FN_HCTS0_N, FN_SCIFB0_CTS_N, 0, FN_GLO_I0_C,
+		FN_TCLK1, FN_VI1_DATA1_C,
+		0, 0,
+		/* IP15_14_12 [3] */
+		FN_GPS_MAG, FN_RX4_C, FN_SCIFA4_RXD_C, FN_PWM6,
+		FN_VI1_G7_B, FN_SCIFA3_SCK_C,
+		0, 0,
+		/* IP15_11_9 [3] */
+		FN_GPS_SIGN, FN_TX4_C, FN_SCIFA4_TXD_C, FN_PWM5,
+		FN_VI1_G6_B, FN_SCIFA3_RXD_C,
+		0, 0,
+		/* IP15_8_6 [3] */
+		FN_GPS_CLK, FN_DU1_DOTCLKIN_C, FN_AUDIO_CLKB_B,
+		FN_PWM5_B, FN_SCIFA3_TXD_C,
+		0, 0, 0,
+		/* IP15_5_4 [2] */
+		FN_SIM0_D, FN_IERX, FN_CAN1_RX_D, 0,
+		/* IP15_3_2 [2] */
+		FN_SIM0_CLK, FN_IECLK, FN_CAN_CLK_C, 0,
+		/* IP15_1_0 [2] */
+		FN_SIM0_RST, FN_IETX, FN_CAN1_TX_D, 0, }
+	},
+	{ PINMUX_CFG_REG_VAR("IPSR16", 0xE6060160, 32,
+			     4, 4, 4, 4, 4, 2, 2, 2, 3, 3) {
+		/* IP16_31_28 [4] */
+		0, 0, 0, 0, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 0,
+		/* IP16_27_24 [4] */
+		0, 0, 0, 0, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 0,
+		/* IP16_23_20 [4] */
+		0, 0, 0, 0, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 0,
+		/* IP16_19_16 [4] */
+		0, 0, 0, 0, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 0,
+		/* IP16_15_12 [4] */
+		0, 0, 0, 0, 0, 0, 0, 0,
+		0, 0, 0, 0, 0, 0, 0, 0,
+		/* IP16_11_10 [2] */
+		FN_HRTS1_N, FN_SCIFB1_RTS_N, FN_MLB_DAT, FN_CAN1_RX_B,
+		/* IP16_9_8 [2] */
+		FN_HCTS1_N, FN_SCIFB1_CTS_N, FN_MLB_SIG, FN_CAN1_TX_B,
+		/* IP16_7_6 [2] */
+		FN_HSCK1, FN_SCIFB1_SCK, FN_MLB_CK, FN_GLO_RFON_C,
+		/* IP16_5_3 [3] */
+		FN_HTX1, FN_SCIFB1_TXD, FN_VI1_R1_B,
+		FN_GLO_SS_C, FN_VI1_DATA7_C,
+		0, 0, 0,
+		/* IP16_2_0 [3] */
+		FN_HRX1, FN_SCIFB1_RXD, FN_VI1_R0_B,
+		FN_GLO_SDATA_C, FN_VI1_DATA6_C,
+		0, 0, 0, }
+	},
+	{ PINMUX_CFG_REG_VAR("MOD_SEL", 0xE6060090, 32,
+			     1, 2, 2, 2, 3, 2, 1, 1, 1, 1,
+			     3, 2, 2, 2, 1, 2, 2, 2) {
+		/* RESEVED [1] */
+		0, 0,
+		/* SEL_SCIF1 [2] */
+		FN_SEL_SCIF1_0, FN_SEL_SCIF1_1, FN_SEL_SCIF1_2, FN_SEL_SCIF1_3,
+		/* SEL_SCIFB [2] */
+		FN_SEL_SCIFB_0, FN_SEL_SCIFB_1, FN_SEL_SCIFB_2, FN_SEL_SCIFB_3,
+		/* SEL_SCIFB2 [2] */
+		FN_SEL_SCIFB2_0, FN_SEL_SCIFB2_1,
+		FN_SEL_SCIFB2_2, FN_SEL_SCIFB2_3,
+		/* SEL_SCIFB1 [3] */
+		FN_SEL_SCIFB1_0, FN_SEL_SCIFB1_1,
+		FN_SEL_SCIFB1_2, FN_SEL_SCIFB1_3,
+		0, 0, 0, 0,
+		/* SEL_SCIFA1 [2] */
+		FN_SEL_SCIFA1_0, FN_SEL_SCIFA1_1, FN_SEL_SCIFA1_2, 0,
+		/* SEL_SSI9 [1] */
+		FN_SEL_SSI9_0, FN_SEL_SSI9_1,
+		/* SEL_SCFA [1] */
+		FN_SEL_SCFA_0, FN_SEL_SCFA_1,
+		/* SEL_QSP [1] */
+		FN_SEL_QSP_0, FN_SEL_QSP_1,
+		/* SEL_SSI7 [1] */
+		FN_SEL_SSI7_0, FN_SEL_SSI7_1,
+		/* SEL_HSCIF1 [3] */
+		FN_SEL_HSCIF1_0, FN_SEL_HSCIF1_1, FN_SEL_HSCIF1_2,
+		FN_SEL_HSCIF1_3, FN_SEL_HSCIF1_4,
+		0, 0, 0,
+		/* RESEVED [2] */
+		0, 0, 0, 0,
+		/* SEL_VI1 [2] */
+		FN_SEL_VI1_0, FN_SEL_VI1_1, FN_SEL_VI1_2, 0,
+		/* RESEVED [2] */
+		0, 0, 0, 0,
+		/* SEL_TMU [1] */
+		FN_SEL_TMU1_0, FN_SEL_TMU1_1,
+		/* SEL_LBS [2] */
+		FN_SEL_LBS_0, FN_SEL_LBS_1, FN_SEL_LBS_2, FN_SEL_LBS_3,
+		/* SEL_TSIF0 [2] */
+		FN_SEL_TSIF0_0, FN_SEL_TSIF0_1, FN_SEL_TSIF0_2, FN_SEL_TSIF0_3,
+		/* SEL_SOF0 [2] */
+		FN_SEL_SOF0_0, FN_SEL_SOF0_1, FN_SEL_SOF0_2, 0, }
+	},
+	{ PINMUX_CFG_REG_VAR("MOD_SEL2", 0xE6060094, 32,
+			     3, 1, 1, 3, 2, 1, 1, 2, 2,
+			     1, 3, 2, 1, 2, 2, 2, 1, 1, 1) {
+		/* SEL_SCIF0 [3] */
+		FN_SEL_SCIF0_0, FN_SEL_SCIF0_1, FN_SEL_SCIF0_2,
+		FN_SEL_SCIF0_3, FN_SEL_SCIF0_4,
+		0, 0, 0,
+		/* RESEVED [1] */
+		0, 0,
+		/* SEL_SCIF [1] */
+		FN_SEL_SCIF_0, FN_SEL_SCIF_1,
+		/* SEL_CAN0 [3] */
+		FN_SEL_CAN0_0, FN_SEL_CAN0_1, FN_SEL_CAN0_2, FN_SEL_CAN0_3,
+		FN_SEL_CAN0_4, FN_SEL_CAN0_5,
+		0, 0,
+		/* SEL_CAN1 [2] */
+		FN_SEL_CAN1_0, FN_SEL_CAN1_1, FN_SEL_CAN1_2, FN_SEL_CAN1_3,
+		/* RESEVED [1] */
+		0, 0,
+		/* SEL_SCIFA2 [1] */
+		FN_SEL_SCIFA2_0, FN_SEL_SCIFA2_1,
+		/* SEL_SCIF4 [2] */
+		FN_SEL_SCIF4_0, FN_SEL_SCIF4_1, FN_SEL_SCIF4_2, 0,
+		/* RESEVED [2] */
+		0, 0, 0, 0,
+		/* SEL_ADG [1] */
+		FN_SEL_ADG_0, FN_SEL_ADG_1,
+		/* SEL_FM [3] */
+		FN_SEL_FM_0, FN_SEL_FM_1, FN_SEL_FM_2,
+		FN_SEL_FM_3, FN_SEL_FM_4,
+		0, 0, 0,
+		/* SEL_SCIFA5 [2] */
+		FN_SEL_SCIFA5_0, FN_SEL_SCIFA5_1, FN_SEL_SCIFA5_2, 0,
+		/* RESEVED [1] */
+		0, 0,
+		/* SEL_GPS [2] */
+		FN_SEL_GPS_0, FN_SEL_GPS_1, FN_SEL_GPS_2, FN_SEL_GPS_3,
+		/* SEL_SCIFA4 [2] */
+		FN_SEL_SCIFA4_0, FN_SEL_SCIFA4_1, FN_SEL_SCIFA4_2, 0,
+		/* SEL_SCIFA3 [2] */
+		FN_SEL_SCIFA3_0, FN_SEL_SCIFA3_1, FN_SEL_SCIFA3_2, 0,
+		/* SEL_SIM [1] */
+		FN_SEL_SIM_0, FN_SEL_SIM_1,
+		/* RESEVED [1] */
+		0, 0,
+		/* SEL_SSI8 [1] */
+		FN_SEL_SSI8_0, FN_SEL_SSI8_1, }
+	},
+	{ PINMUX_CFG_REG_VAR("MOD_SEL3", 0xE6060098, 32,
+			     2, 2, 2, 2, 2, 2, 2, 2,
+			     1, 1, 2, 2, 3, 2, 2, 2, 1) {
+		/* SEL_HSCIF2 [2] */
+		FN_SEL_HSCIF2_0, FN_SEL_HSCIF2_1,
+		FN_SEL_HSCIF2_2, FN_SEL_HSCIF2_3,
+		/* SEL_CANCLK [2] */
+		FN_SEL_CANCLK_0, FN_SEL_CANCLK_1,
+		FN_SEL_CANCLK_2, FN_SEL_CANCLK_3,
+		/* SEL_IIC8 [2] */
+		FN_SEL_IIC8_0, FN_SEL_IIC8_1, FN_SEL_IIC8_2, 0,
+		/* SEL_IIC7 [2] */
+		FN_SEL_IIC7_0, FN_SEL_IIC7_1, FN_SEL_IIC7_2, 0,
+		/* SEL_IIC4 [2] */
+		FN_SEL_IIC4_0, FN_SEL_IIC4_1, FN_SEL_IIC4_2, 0,
+		/* SEL_IIC3 [2] */
+		FN_SEL_IIC3_0, FN_SEL_IIC3_1, FN_SEL_IIC3_2, FN_SEL_IIC3_3,
+		/* SEL_SCIF3 [2] */
+		FN_SEL_SCIF3_0, FN_SEL_SCIF3_1, FN_SEL_SCIF3_2, FN_SEL_SCIF3_3,
+		/* SEL_IEB [2] */
+		FN_SEL_IEB_0, FN_SEL_IEB_1, FN_SEL_IEB_2,
+		/* SEL_MMC [1] */
+		FN_SEL_MMC_0, FN_SEL_MMC_1,
+		/* SEL_SCIF5 [1] */
+		FN_SEL_SCIF5_0, FN_SEL_SCIF5_1,
+		/* RESEVED [2] */
+		0, 0, 0, 0,
+		/* SEL_IIC2 [2] */
+		FN_SEL_IIC2_0, FN_SEL_IIC2_1, FN_SEL_IIC2_2, FN_SEL_IIC2_3,
+		/* SEL_IIC1 [3] */
+		FN_SEL_IIC1_0, FN_SEL_IIC1_1, FN_SEL_IIC1_2, FN_SEL_IIC1_3,
+		FN_SEL_IIC1_4,
+		0, 0, 0,
+		/* SEL_IIC0 [2] */
+		FN_SEL_IIC0_0, FN_SEL_IIC0_1, FN_SEL_IIC0_2, 0,
+		/* RESEVED [2] */
+		0, 0, 0, 0,
+		/* RESEVED [2] */
+		0, 0, 0, 0,
+		/* RESEVED [1] */
+		0, 0, }
+	},
+	{ PINMUX_CFG_REG_VAR("MOD_SEL4", 0xE606009C, 32,
+			     3, 2, 2, 1, 1, 1, 1, 3, 2,
+			     2, 3, 1, 1, 1, 2, 2, 2, 2) {
+		/* SEL_SOF1 [3] */
+		FN_SEL_SOF1_0, FN_SEL_SOF1_1, FN_SEL_SOF1_2, FN_SEL_SOF1_3,
+		FN_SEL_SOF1_4,
+		0, 0, 0,
+		/* SEL_HSCIF0 [2] */
+		FN_SEL_HSCIF0_0, FN_SEL_HSCIF0_1, FN_SEL_HSCIF0_2, 0,
+		/* SEL_DIS [2] */
+		FN_SEL_DIS_0, FN_SEL_DIS_1, FN_SEL_DIS_2, 0,
+		/* RESEVED [1] */
+		0, 0,
+		/* SEL_RAD [1] */
+		FN_SEL_RAD_0, FN_SEL_RAD_1,
+		/* SEL_RCN [1] */
+		FN_SEL_RCN_0, FN_SEL_RCN_1,
+		/* SEL_RSP [1] */
+		FN_SEL_RSP_0, FN_SEL_RSP_1,
+		/* SEL_SCIF2 [3] */
+		FN_SEL_SCIF2_0, FN_SEL_SCIF2_1, FN_SEL_SCIF2_2,
+		FN_SEL_SCIF2_3, FN_SEL_SCIF2_4,
+		0, 0, 0,
+		/* RESEVED [2] */
+		0, 0, 0, 0,
+		/* RESEVED [2] */
+		0, 0, 0, 0,
+		/* SEL_SOF2 [3] */
+		FN_SEL_SOF2_0, FN_SEL_SOF2_1, FN_SEL_SOF2_2,
+		FN_SEL_SOF2_3, FN_SEL_SOF2_4,
+		0, 0, 0,
+		/* RESEVED [1] */
+		0, 0,
+		/* SEL_SSI1 [1] */
+		FN_SEL_SSI1_0, FN_SEL_SSI1_1,
+		/* SEL_SSI0 [1] */
+		FN_SEL_SSI0_0, FN_SEL_SSI0_1,
+		/* SEL_SSP [2] */
+		FN_SEL_SSP_0, FN_SEL_SSP_1, FN_SEL_SSP_2, 0,
+		/* RESEVED [2] */
+		0, 0, 0, 0,
+		/* RESEVED [2] */
+		0, 0, 0, 0,
+		/* RESEVED [2] */
+		0, 0, 0, 0, }
+	},
+	{ },
+};
+
+const struct sh_pfc_soc_info r8a7791_pinmux_info = {
+	.name = "r8a77910_pfc",
+	.unlock_reg = 0xe6060000, /* PMMR */
+
+	.function = { PINMUX_FUNCTION_BEGIN, PINMUX_FUNCTION_END },
+
+	.pins = pinmux_pins,
+	.nr_pins = ARRAY_SIZE(pinmux_pins),
+	.groups = pinmux_groups,
+	.nr_groups = ARRAY_SIZE(pinmux_groups),
+	.functions = pinmux_functions,
+	.nr_functions = ARRAY_SIZE(pinmux_functions),
+
+	.cfg_regs = pinmux_config_regs,
+
+	.gpio_data = pinmux_data,
+	.gpio_data_size = ARRAY_SIZE(pinmux_data),
+};
-- 
cgit 


From dc476e7c8e7824fd326c79f50d7302faca7a4c2b Mon Sep 17 00:00:00 2001
From: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Date: Fri, 18 Oct 2013 14:03:41 +0200
Subject: netfilter:ipset: Fix memory allocation for bitmap:port

At the restructuring of the bitmap types creation in ipset, for the
bitmap:port type wrong (too large) memory allocation was copied
(netfilter bugzilla id #859).

Reported-by: Quentin Armitage <quentin@armitage.org.uk>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 net/netfilter/ipset/ip_set_bitmap_port.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/ipset/ip_set_bitmap_port.c b/net/netfilter/ipset/ip_set_bitmap_port.c
index e7603c5b53d7..cf99676e69f8 100644
--- a/net/netfilter/ipset/ip_set_bitmap_port.c
+++ b/net/netfilter/ipset/ip_set_bitmap_port.c
@@ -254,7 +254,7 @@ bitmap_port_create(struct net *net, struct ip_set *set, struct nlattr *tb[],
 		return -ENOMEM;
 
 	map->elements = last_port - first_port + 1;
-	map->memsize = map->elements * sizeof(unsigned long);
+	map->memsize = bitmap_bytes(0, map->elements);
 	set->variant = &bitmap_port;
 	set->dsize = ip_set_elem_len(set, tb, 0);
 	if (!init_map_port(set, map, first_port, last_port)) {
-- 
cgit 


From 1e56555ee1f3d04d89bdaa3df57ad2da9fbc0999 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 27 Oct 2013 19:06:45 +0100
Subject: netfilter: ipset: remove duplicate define

This patch removes a duplicate define from
net/netfilter/ipset/ip_set_hash_gen.h

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
---
 net/netfilter/ipset/ip_set_hash_gen.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index 2f80c74c871f..be6932ad3a86 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -234,7 +234,6 @@ hbucket_elem_add(struct hbucket *n, u8 ahash_max, size_t dsize)
 #define mtype_uadt		IPSET_TOKEN(MTYPE, _uadt)
 #define mtype			MTYPE
 
-#define mtype_elem		IPSET_TOKEN(MTYPE, _elem)
 #define mtype_add		IPSET_TOKEN(MTYPE, _add)
 #define mtype_del		IPSET_TOKEN(MTYPE, _del)
 #define mtype_test_cidrs	IPSET_TOKEN(MTYPE, _test_cidrs)
-- 
cgit 


From 6b6c526147bb00b5788a2f48463481dd30c29b71 Mon Sep 17 00:00:00 2001
From: dingtianhong <dingtianhong@huawei.com>
Date: Thu, 24 Oct 2013 11:09:03 +0800
Subject: bonding: remove bond read lock for bond_mii_monitor()

The bond slave list may change when the monitor is running, the slave list is no longer
protected by bond->lock, only protected by rtnl lock(), so we have 3 ways to modify it:
1.add bond_master_upper_dev_link() and bond_upper_dev_unlink() in bond->lock, but it is unsafe
to call call_netdevice_notifiers() in write lock.
2.remove unused bond->lock for monitor function, only use the existing rtnl lock().
3.use rcu_read_lock() to protect it, of course, it will transform bond_for_each_slave to
bond_for_each_slave_rcu() and performance is better, but in slow path, it is ignored.
so I remove the bond->lock and move the rtnl lock to protect the whole monitor function.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_main.c | 44 +++++++++++------------------------------
 1 file changed, 12 insertions(+), 32 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index a141f406cb98..0a7e32578540 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2118,49 +2118,29 @@ void bond_mii_monitor(struct work_struct *work)
 	struct bonding *bond = container_of(work, struct bonding,
 					    mii_work.work);
 	bool should_notify_peers = false;
-	unsigned long delay;
 
-	read_lock(&bond->lock);
-
-	delay = msecs_to_jiffies(bond->params.miimon);
+	if (!rtnl_trylock())
+		goto re_arm;
 
-	if (!bond_has_slaves(bond))
+	if (!bond_has_slaves(bond)) {
+		rtnl_unlock();
 		goto re_arm;
+	}
 
 	should_notify_peers = bond_should_notify_peers(bond);
 
-	if (bond_miimon_inspect(bond)) {
-		read_unlock(&bond->lock);
-
-		/* Race avoidance with bond_close cancel of workqueue */
-		if (!rtnl_trylock()) {
-			read_lock(&bond->lock);
-			delay = 1;
-			should_notify_peers = false;
-			goto re_arm;
-		}
-
-		read_lock(&bond->lock);
-
+	if (bond_miimon_inspect(bond))
 		bond_miimon_commit(bond);
 
-		read_unlock(&bond->lock);
-		rtnl_unlock();	/* might sleep, hold no other locks */
-		read_lock(&bond->lock);
-	}
+	if (should_notify_peers)
+		call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, bond->dev);
+
+	rtnl_unlock();
 
 re_arm:
 	if (bond->params.miimon)
-		queue_delayed_work(bond->wq, &bond->mii_work, delay);
-
-	read_unlock(&bond->lock);
-
-	if (should_notify_peers) {
-		if (!rtnl_trylock())
-			return;
-		call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, bond->dev);
-		rtnl_unlock();
-	}
+		queue_delayed_work(bond->wq, &bond->mii_work,
+				msecs_to_jiffies(bond->params.miimon));
 }
 
 static bool bond_has_this_ip(struct bonding *bond, __be32 ip)
-- 
cgit 


From 2d0dafb0152a6ac61cd31d38c3ef3d49463b6a57 Mon Sep 17 00:00:00 2001
From: dingtianhong <dingtianhong@huawei.com>
Date: Thu, 24 Oct 2013 11:09:12 +0800
Subject: bonding: remove bond read lock for bond_alb_monitor()

The bond slave list may change when the monitor is running, the slave list is no longer
protected by bond->lock, only protected by rtnl lock(), so we have 3 ways to modify it:
1.add bond_master_upper_dev_link() and bond_upper_dev_unlink() in bond->lock, but it is unsafe
to call call_netdevice_notifiers() in write lock.
2.remove unused bond->lock for monitor function, only use the existing rtnl lock().
3.use rcu_read_lock() to protect it, of course, it will transform bond_for_each_slave to
bond_for_each_slave_rcu() and performance is better, but in slow path, it is ignored.
so I remove the bond->lock and move the rtnl lock to protect the whole monitor function.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_alb.c | 20 ++++----------------
 1 file changed, 4 insertions(+), 16 deletions(-)

diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index 02872405d35d..5d79f5e529e0 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -1495,11 +1495,13 @@ void bond_alb_monitor(struct work_struct *work)
 	struct list_head *iter;
 	struct slave *slave;
 
-	read_lock(&bond->lock);
+	if (!rtnl_trylock())
+		goto re_arm;
 
 	if (!bond_has_slaves(bond)) {
 		bond_info->tx_rebalance_counter = 0;
 		bond_info->lp_counter = 0;
+		rtnl_unlock();
 		goto re_arm;
 	}
 
@@ -1548,16 +1550,6 @@ void bond_alb_monitor(struct work_struct *work)
 		if (bond_info->primary_is_promisc &&
 		    (++bond_info->rlb_promisc_timeout_counter >= RLB_PROMISC_TIMEOUT)) {
 
-			/*
-			 * dev_set_promiscuity requires rtnl and
-			 * nothing else.  Avoid race with bond_close.
-			 */
-			read_unlock(&bond->lock);
-			if (!rtnl_trylock()) {
-				read_lock(&bond->lock);
-				goto re_arm;
-			}
-
 			bond_info->rlb_promisc_timeout_counter = 0;
 
 			/* If the primary was set to promiscuous mode
@@ -1566,9 +1558,6 @@ void bond_alb_monitor(struct work_struct *work)
 			 */
 			dev_set_promiscuity(bond->curr_active_slave->dev, -1);
 			bond_info->primary_is_promisc = 0;
-
-			rtnl_unlock();
-			read_lock(&bond->lock);
 		}
 
 		if (bond_info->rlb_rebalance) {
@@ -1591,10 +1580,9 @@ void bond_alb_monitor(struct work_struct *work)
 		}
 	}
 
+	rtnl_unlock();
 re_arm:
 	queue_delayed_work(bond->wq, &bond->alb_work, alb_delta_in_ticks);
-
-	read_unlock(&bond->lock);
 }
 
 /* assumption: called before the slave is attached to the bond
-- 
cgit 


From 7f1bb571b753ac75b6548f0b7c932dfc0bb1f970 Mon Sep 17 00:00:00 2001
From: dingtianhong <dingtianhong@huawei.com>
Date: Thu, 24 Oct 2013 11:09:17 +0800
Subject: bonding: remove bond read lock for bond_loadbalance_arp_mon()

The bond slave list may change when the monitor is running, the slave list is no longer
protected by bond->lock, only protected by rtnl lock(), so we have 3 ways to modify it:
1.add bond_master_upper_dev_link() and bond_upper_dev_unlink() in bond->lock, but it is unsafe
to call call_netdevice_notifiers() in write lock.
2.remove unused bond->lock for monitor function, only use the existing rtnl lock().
3.use rcu_read_lock() to protect it, of course, it will transform bond_for_each_slave to
bond_for_each_slave_rcu() and performance is better, but in slow path, it is ignored.
so I remove the bond->lock and add the rtnl lock to protect the whole monitor function.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_main.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 0a7e32578540..a620dfae1c82 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2396,10 +2396,13 @@ void bond_loadbalance_arp_mon(struct work_struct *work)
 	struct list_head *iter;
 	int do_failover = 0;
 
-	read_lock(&bond->lock);
+	if (!rtnl_trylock())
+		goto re_arm;
 
-	if (!bond_has_slaves(bond))
+	if (!bond_has_slaves(bond)) {
+		rtnl_unlock();
 		goto re_arm;
+	}
 
 	oldcurrent = bond->curr_active_slave;
 	/* see if any of the previous devices are up now (i.e. they have
@@ -2481,13 +2484,12 @@ void bond_loadbalance_arp_mon(struct work_struct *work)
 		write_unlock_bh(&bond->curr_slave_lock);
 		unblock_netpoll_tx();
 	}
+	rtnl_unlock();
 
 re_arm:
 	if (bond->params.arp_interval)
 		queue_delayed_work(bond->wq, &bond->arp_work,
 				   msecs_to_jiffies(bond->params.arp_interval));
-
-	read_unlock(&bond->lock);
 }
 
 /*
-- 
cgit 


From 80b9d236ec56ecc18da4a43bd79e8ec9ac5036ff Mon Sep 17 00:00:00 2001
From: dingtianhong <dingtianhong@huawei.com>
Date: Thu, 24 Oct 2013 11:09:25 +0800
Subject: bonding: remove bond read lock for bond_activebackup_arp_mon()

The bond slave list may change when the monitor is running, the slave list is no longer
protected by bond->lock, only protected by rtnl lock(), so we have 3 ways to modify it:
1.add bond_master_upper_dev_link() and bond_upper_dev_unlink() in bond->lock, but it is unsafe
to call call_netdevice_notifiers() in write lock.
2.remove unused bond->lock for monitor function, only use the existing rtnl lock().
3.use rcu_read_lock() to protect it, of course, it will transform bond_for_each_slave to
bond_for_each_slave_rcu() and performance is better, but in slow path, it is ignored.
so I remove the bond->lock and move the rtnl lock to protect the whole monitor function.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_main.c | 46 ++++++++++++-----------------------------
 1 file changed, 13 insertions(+), 33 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index a620dfae1c82..535570ea8bbc 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2726,51 +2726,31 @@ void bond_activebackup_arp_mon(struct work_struct *work)
 	struct bonding *bond = container_of(work, struct bonding,
 					    arp_work.work);
 	bool should_notify_peers = false;
-	int delta_in_ticks;
 
-	read_lock(&bond->lock);
-
-	delta_in_ticks = msecs_to_jiffies(bond->params.arp_interval);
+	if (!rtnl_trylock())
+		goto re_arm;
 
-	if (!bond_has_slaves(bond))
+	if (!bond_has_slaves(bond)) {
+		rtnl_unlock();
 		goto re_arm;
+	}
 
 	should_notify_peers = bond_should_notify_peers(bond);
 
-	if (bond_ab_arp_inspect(bond)) {
-		read_unlock(&bond->lock);
-
-		/* Race avoidance with bond_close flush of workqueue */
-		if (!rtnl_trylock()) {
-			read_lock(&bond->lock);
-			delta_in_ticks = 1;
-			should_notify_peers = false;
-			goto re_arm;
-		}
-
-		read_lock(&bond->lock);
-
+	if (bond_ab_arp_inspect(bond))
 		bond_ab_arp_commit(bond);
 
-		read_unlock(&bond->lock);
-		rtnl_unlock();
-		read_lock(&bond->lock);
-	}
-
 	bond_ab_arp_probe(bond);
 
-re_arm:
-	if (bond->params.arp_interval)
-		queue_delayed_work(bond->wq, &bond->arp_work, delta_in_ticks);
+	if (should_notify_peers)
+		call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, bond->dev);
 
-	read_unlock(&bond->lock);
+	rtnl_unlock();
 
-	if (should_notify_peers) {
-		if (!rtnl_trylock())
-			return;
-		call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, bond->dev);
-		rtnl_unlock();
-	}
+re_arm:
+	if (bond->params.arp_interval)
+		queue_delayed_work(bond->wq, &bond->arp_work,
+				msecs_to_jiffies(bond->params.arp_interval));
 }
 
 /*-------------------------- netdev event handling --------------------------*/
-- 
cgit 


From 5cc172c6de80cd9bf2a1228cb928b1fb42e30deb Mon Sep 17 00:00:00 2001
From: dingtianhong <dingtianhong@huawei.com>
Date: Thu, 24 Oct 2013 11:09:31 +0800
Subject: bonding: remove bond read lock for bond_3ad_state_machine_handler()

The bond slave list may change when the monitor is running, the slave list is no longer
protected by bond->lock, only protected by rtnl lock(), so we have 3 ways to modify it:
1.add bond_master_upper_dev_link() and bond_upper_dev_unlink() in bond->lock, but it is unsafe
to call call_netdevice_notifiers() in write lock.
2.remove unused bond->lock for monitor function, only use the existing rtnl lock().
3.use rcu_read_lock() to protect it, of course, it will transform bond_for_each_slave to
bond_for_each_slave_rcu() and performance is better, but in slow path, it is ignored.
so I remove the bond->lock and move the rtnl lock to protect the whole monitor function.

Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_3ad.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index 187b1b7772ef..d6fe00bf4858 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -2068,8 +2068,10 @@ void bond_3ad_state_machine_handler(struct work_struct *work)
 	struct slave *slave;
 	struct port *port;
 
-	read_lock(&bond->lock);
-
+	if (!rtnl_trylock()) {
+		queue_delayed_work(bond->wq, &bond->ad_work, ad_delta_in_ticks);
+		return;
+	}
 	//check if there are any slaves
 	if (!bond_has_slaves(bond))
 		goto re_arm;
@@ -2122,9 +2124,8 @@ void bond_3ad_state_machine_handler(struct work_struct *work)
 	}
 
 re_arm:
+	rtnl_unlock();
 	queue_delayed_work(bond->wq, &bond->ad_work, ad_delta_in_ticks);
-
-	read_unlock(&bond->lock);
 }
 
 /**
-- 
cgit 


From e9e2a904ef0a4f46ee5c845f3ae04e62b917bb6d Mon Sep 17 00:00:00 2001
From: Somnath Kotur <somnath.kotur@emulex.com>
Date: Thu, 24 Oct 2013 14:37:53 +0530
Subject: be2net: Warn users of possible broken functionality on BE2 cards with
 very old FW versions with latest driver

On very old FW versions < 4.0, the mailbox command to set interrupts
on the card succeeds even though it is not supported and should have
failed, leading to a scenario where interrupts do not work.
Hence warn users to upgrade to a suitable FW version to avoid seeing
broken functionality.

Signed-off-by: Somnath Kotur <somnath.kotur@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be.h      | 9 +++++++++
 drivers/net/ethernet/emulex/benet/be_main.c | 6 ++++++
 2 files changed, 15 insertions(+)

diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index db020230bd0b..c99dac6a9ddf 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -696,6 +696,15 @@ static inline int qnq_async_evt_rcvd(struct be_adapter *adapter)
 	return adapter->flags & BE_FLAGS_QNQ_ASYNC_EVT_RCVD;
 }
 
+static inline int fw_major_num(const char *fw_ver)
+{
+	int fw_major = 0;
+
+	sscanf(fw_ver, "%d.", &fw_major);
+
+	return fw_major;
+}
+
 extern void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm,
 		u16 num_popped);
 extern void be_link_status_update(struct be_adapter *adapter, u8 link_status);
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 2c38cc402119..53ed58b492c8 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -3247,6 +3247,12 @@ static int be_setup(struct be_adapter *adapter)
 
 	be_cmd_get_fw_ver(adapter, adapter->fw_ver, adapter->fw_on_flash);
 
+	if (BE2_chip(adapter) && fw_major_num(adapter->fw_ver) < 4) {
+		dev_err(dev, "Firmware on card is old(%s), IRQs may not work.",
+			adapter->fw_ver);
+		dev_err(dev, "Please upgrade firmware to version >= 4.0\n");
+	}
+
 	if (adapter->vlans_added)
 		be_vid_config(adapter);
 
-- 
cgit 


From 6b8dbcf2c44fd7aa716560d04e9857c870bd510c Mon Sep 17 00:00:00 2001
From: Florian Westphal <fw@strlen.de>
Date: Thu, 24 Oct 2013 21:32:42 +0200
Subject: bridge: netfilter: orphan skb before invoking ip netfilter hooks
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Pekka Pietikäinen reports xt_socket behavioural change after commit
00028aa37098o (netfilter: xt_socket: use IP early demux).

Reason is xt_socket now no longer does an unconditional sk lookup -
it re-uses existing skb->sk if possible, assuming ->sk was set by
ip early demux.

However, when netfilter is invoked via bridge, this can cause 'bogus'
sockets to be examined by the match, e.g. a 'tun' device socket.

bridge netfilter should orphan the skb just like the routing path
before invoking ipv4/ipv6 netfilter hooks to avoid this.

Reported-and-tested-by: Pekka Pietikäinen <pp@ee.oulu.fi>
Signed-off-by: Florian Westphal <fw@strlen.de>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/bridge/br_netfilter.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c
index f87736270eaa..3d553120ff04 100644
--- a/net/bridge/br_netfilter.c
+++ b/net/bridge/br_netfilter.c
@@ -559,6 +559,8 @@ static struct net_device *setup_pre_routing(struct sk_buff *skb)
 	else if (skb->protocol == htons(ETH_P_PPP_SES))
 		nf_bridge->mask |= BRNF_PPPoE;
 
+	/* Must drop socket now because of tproxy. */
+	skb_orphan(skb);
 	return skb->dev;
 }
 
-- 
cgit 


From bc15afa39ecc16f01c3389d15d8f6015a427fe85 Mon Sep 17 00:00:00 2001
From: Yuchung Cheng <ycheng@google.com>
Date: Thu, 24 Oct 2013 08:44:25 -0700
Subject: tcp: fix SYNACK RTT estimation in Fast Open

tp->lsndtime may not always be the SYNACK timestamp if a passive
Fast Open socket sends data before handshake completes. And if the
remote acknowledges both the data and the SYNACK, the RTT sample
is already taken in tcp_ack(), so no need to call
tcp_update_ack_rtt() in tcp_synack_rtt_meas() aagain.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/tcp_input.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index a16b01b537ba..305cd0526a78 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2871,14 +2871,19 @@ static inline bool tcp_ack_update_rtt(struct sock *sk, const int flag,
 }
 
 /* Compute time elapsed between (last) SYNACK and the ACK completing 3WHS. */
-static void tcp_synack_rtt_meas(struct sock *sk, struct request_sock *req)
+static void tcp_synack_rtt_meas(struct sock *sk, const u32 synack_stamp)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	s32 seq_rtt = -1;
 
-	if (tp->lsndtime && !tp->total_retrans)
-		seq_rtt = tcp_time_stamp - tp->lsndtime;
-	tcp_ack_update_rtt(sk, FLAG_SYN_ACKED, seq_rtt, -1);
+	if (synack_stamp && !tp->total_retrans)
+		seq_rtt = tcp_time_stamp - synack_stamp;
+
+	/* If the ACK acks both the SYNACK and the (Fast Open'd) data packets
+	 * sent in SYN_RECV, SYNACK RTT is the smooth RTT computed in tcp_ack()
+	 */
+	if (!tp->srtt)
+		tcp_ack_update_rtt(sk, FLAG_SYN_ACKED, seq_rtt, -1);
 }
 
 static void tcp_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
@@ -5587,6 +5592,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 	struct request_sock *req;
 	int queued = 0;
 	bool acceptable;
+	u32 synack_stamp;
 
 	tp->rx_opt.saw_tstamp = 0;
 
@@ -5669,9 +5675,11 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 		 * so release it.
 		 */
 		if (req) {
+			synack_stamp = tcp_rsk(req)->snt_synack;
 			tp->total_retrans = req->num_retrans;
 			reqsk_fastopen_remove(sk, req, false);
 		} else {
+			synack_stamp = tp->lsndtime;
 			/* Make sure socket is routed, for correct metrics. */
 			icsk->icsk_af_ops->rebuild_header(sk);
 			tcp_init_congestion_control(sk);
@@ -5694,7 +5702,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
 		tp->snd_una = TCP_SKB_CB(skb)->ack_seq;
 		tp->snd_wnd = ntohs(th->window) << tp->rx_opt.snd_wscale;
 		tcp_init_wl(tp, TCP_SKB_CB(skb)->seq);
-		tcp_synack_rtt_meas(sk, req);
+		tcp_synack_rtt_meas(sk, synack_stamp);
 
 		if (tp->rx_opt.tstamp_ok)
 			tp->advmss -= TCPOLEN_TSTAMP_ALIGNED;
-- 
cgit 


From 2909d874f34eae157aecab0af27c6dc4a1751f8f Mon Sep 17 00:00:00 2001
From: Yuchung Cheng <ycheng@google.com>
Date: Thu, 24 Oct 2013 08:55:25 -0700
Subject: tcp: only take RTT from timestamps if new data is acked

Patch ed08495c3 "tcp: use RTT from SACK for RTO" has a bug that
it does not check if the ACK acknowledge new data before taking
the RTT sample from TCP timestamps. This patch adds the check
back as required by the RFC.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/tcp_input.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 305cd0526a78..6ffe41a82c00 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2856,7 +2856,8 @@ static inline bool tcp_ack_update_rtt(struct sock *sk, const int flag,
 	 * left edge of the send window.
 	 * See draft-ietf-tcplw-high-performance-00, section 3.3.
 	 */
-	if (seq_rtt < 0 && tp->rx_opt.saw_tstamp && tp->rx_opt.rcv_tsecr)
+	if (seq_rtt < 0 && tp->rx_opt.saw_tstamp && tp->rx_opt.rcv_tsecr &&
+	    flag & FLAG_ACKED)
 		seq_rtt = tcp_time_stamp - tp->rx_opt.rcv_tsecr;
 
 	if (seq_rtt < 0)
-- 
cgit 


From 2f715c1dde6e1760f3101358dc26f8c9489be0bf Mon Sep 17 00:00:00 2001
From: Yuchung Cheng <ycheng@google.com>
Date: Thu, 24 Oct 2013 08:59:27 -0700
Subject: tcp: do not rearm RTO when future data are sacked

Patch ed08495c3 "tcp: use RTT from SACK for RTO" always re-arms RTO upon
obtaining a RTT sample from newly sacked data.

But technically RTO should only be re-armed when the data sent before
the last (re)transmission of write queue head are (s)acked. Otherwise
the RTO may continue to extend during loss recovery on data sent
in the future.

Note that RTTs from ACK or timestamps do not have this problem, as the RTT
source must be from data sent before.

The new RTO re-arm policy is
1) Always re-arm RTO if SND.UNA is advanced
2) Re-arm RTO if sack RTT is available, provided the sacked data was
   sent before the last time write_queue_head was sent.

Signed-off-by: Larry Brakmo <brakmo@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/tcp_input.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 6ffe41a82c00..068c8fb0d158 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2987,6 +2987,7 @@ static int tcp_clean_rtx_queue(struct sock *sk, int prior_fackets,
 	s32 seq_rtt = -1;
 	s32 ca_seq_rtt = -1;
 	ktime_t last_ackt = net_invalid_timestamp();
+	bool rtt_update;
 
 	while ((skb = tcp_write_queue_head(sk)) && skb != tcp_send_head(sk)) {
 		struct tcp_skb_cb *scb = TCP_SKB_CB(skb);
@@ -3063,14 +3064,13 @@ static int tcp_clean_rtx_queue(struct sock *sk, int prior_fackets,
 	if (skb && (TCP_SKB_CB(skb)->sacked & TCPCB_SACKED_ACKED))
 		flag |= FLAG_SACK_RENEGING;
 
-	if (tcp_ack_update_rtt(sk, flag, seq_rtt, sack_rtt) ||
-	    (flag & FLAG_ACKED))
-		tcp_rearm_rto(sk);
+	rtt_update = tcp_ack_update_rtt(sk, flag, seq_rtt, sack_rtt);
 
 	if (flag & FLAG_ACKED) {
 		const struct tcp_congestion_ops *ca_ops
 			= inet_csk(sk)->icsk_ca_ops;
 
+		tcp_rearm_rto(sk);
 		if (unlikely(icsk->icsk_mtup.probe_size &&
 			     !after(tp->mtu_probe.probe_seq_end, tp->snd_una))) {
 			tcp_mtup_probe_success(sk);
@@ -3109,6 +3109,13 @@ static int tcp_clean_rtx_queue(struct sock *sk, int prior_fackets,
 
 			ca_ops->pkts_acked(sk, pkts_acked, rtt_us);
 		}
+	} else if (skb && rtt_update && sack_rtt >= 0 &&
+		   sack_rtt > (s32)(now - TCP_SKB_CB(skb)->when)) {
+		/* Do not re-arm RTO if the sack RTT is measured from data sent
+		 * after when the head was last (re)transmitted. Otherwise the
+		 * timeout may continue to extend in loss recovery.
+		 */
+		tcp_rearm_rto(sk);
 	}
 
 #if FASTRETRANS_DEBUG > 0
-- 
cgit 


From ad86de802d0ea6776eccd0a2526ba31101d89267 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Thu, 24 Oct 2013 18:56:57 -0700
Subject: Documentation/networking: netdev-FAQ typo corrections

Various typo fixes to netdev-FAQ.txt:
- capitalize Linux
- hyphenate dual-word adjectives
- minor punctuation fixes

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Acked-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 Documentation/networking/netdev-FAQ.txt | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/Documentation/networking/netdev-FAQ.txt b/Documentation/networking/netdev-FAQ.txt
index d9112f01c44a..3a2c5860a78e 100644
--- a/Documentation/networking/netdev-FAQ.txt
+++ b/Documentation/networking/netdev-FAQ.txt
@@ -4,23 +4,23 @@ Information you need to know about netdev
 
 Q: What is netdev?
 
-A: It is a mailing list for all network related linux stuff.  This includes
+A: It is a mailing list for all network-related Linux stuff.  This includes
    anything found under net/  (i.e. core code like IPv6) and drivers/net
-   (i.e. hardware specific drivers) in the linux source tree.
+   (i.e. hardware specific drivers) in the Linux source tree.
 
    Note that some subsystems (e.g. wireless drivers) which have a high volume
    of traffic have their own specific mailing lists.
 
-   The netdev list is managed (like many other linux mailing lists) through
+   The netdev list is managed (like many other Linux mailing lists) through
    VGER ( http://vger.kernel.org/ ) and archives can be found below:
 
 	http://marc.info/?l=linux-netdev
 	http://www.spinics.net/lists/netdev/
 
-   Aside from subsystems like that mentioned above, all network related linux
-   development (i.e. RFC, review, comments, etc) takes place on netdev.
+   Aside from subsystems like that mentioned above, all network-related Linux
+   development (i.e. RFC, review, comments, etc.) takes place on netdev.
 
-Q: How do the changes posted to netdev make their way into linux?
+Q: How do the changes posted to netdev make their way into Linux?
 
 A: There are always two trees (git repositories) in play.  Both are driven
    by David Miller, the main network maintainer.  There is the "net" tree,
@@ -35,7 +35,7 @@ A: There are always two trees (git repositories) in play.  Both are driven
 Q: How often do changes from these trees make it to the mainline Linus tree?
 
 A: To understand this, you need to know a bit of background information
-   on the cadence of linux development.  Each new release starts off with
+   on the cadence of Linux development.  Each new release starts off with
    a two week "merge window" where the main maintainers feed their new
    stuff to Linus for merging into the mainline tree.  After the two weeks,
    the merge window is closed, and it is called/tagged "-rc1".  No new
@@ -46,7 +46,7 @@ A: To understand this, you need to know a bit of background information
    things are in a state of churn), and a week after the last vX.Y-rcN
    was done, the official "vX.Y" is released.
 
-   Relating that to netdev:  At the beginning of the 2 week merge window,
+   Relating that to netdev:  At the beginning of the 2-week merge window,
    the net-next tree will be closed - no new changes/features.  The
    accumulated new content of the past ~10 weeks will be passed onto
    mainline/Linus via a pull request for vX.Y -- at the same time,
@@ -59,12 +59,12 @@ A: To understand this, you need to know a bit of background information
    IMPORTANT:  Do not send new net-next content to netdev during the
    period during which net-next tree is closed.
 
-   Shortly after the two weeks have passed, (and vX.Y-rc1 is released) the
+   Shortly after the two weeks have passed (and vX.Y-rc1 is released), the
    tree for net-next reopens to collect content for the next (vX.Y+1) release.
 
    If you aren't subscribed to netdev and/or are simply unsure if net-next
    has re-opened yet, simply check the net-next git repository link above for
-   any new networking related commits.
+   any new networking-related commits.
 
    The "net" tree continues to collect fixes for the vX.Y content, and
    is fed back to Linus at regular (~weekly) intervals.  Meaning that the
@@ -217,7 +217,7 @@ A: Attention to detail.  Re-read your own work as if you were the
    to why it happens, and then if necessary, explain why the fix proposed
    is the best way to get things done.   Don't mangle whitespace, and as
    is common, don't mis-indent function arguments that span multiple lines.
-   If it is your 1st patch, mail it to yourself so you can test apply
+   If it is your first patch, mail it to yourself so you can test apply
    it to an unpatched tree to confirm infrastructure didn't mangle it.
 
    Finally, go back and read Documentation/SubmittingPatches to be
-- 
cgit 


From 365aa51e11cc537ac39a96f765ad8e7511aa93ff Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sun, 27 Oct 2013 14:05:02 -0700
Subject: staging: ktap: remove code from tree

ktap should be merged through the "proper" place in the kernel tree, in
the perf tool, not as a stand-alone kernel module in staging.  So remove
it from here for now so that it can be merged correctly later.

Reported-by: Ingo Molnar <mingo@kernel.org>
Cc: Jovi Zhangwei <jovi.zhangwei@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/Kconfig                            |    2 -
 drivers/staging/Makefile                           |    1 -
 drivers/staging/ktap/Kconfig                       |   21 -
 drivers/staging/ktap/Makefile                      |  101 --
 drivers/staging/ktap/README.md                     |  144 --
 drivers/staging/ktap/doc/tutorial.md               |  552 ------
 drivers/staging/ktap/include/ktap.h                |  169 --
 drivers/staging/ktap/include/ktap_opcodes.h        |  240 ---
 drivers/staging/ktap/include/ktap_types.h          |  674 -------
 drivers/staging/ktap/interpreter/ktap.c            |  235 ---
 drivers/staging/ktap/interpreter/library/ansilib.c |  153 --
 drivers/staging/ktap/interpreter/library/baselib.c |  455 -----
 drivers/staging/ktap/interpreter/library/kdebug.c  |  449 -----
 drivers/staging/ktap/interpreter/library/timer.c   |  192 --
 drivers/staging/ktap/interpreter/loader.c          |  310 ----
 drivers/staging/ktap/interpreter/object.c          |  483 -----
 drivers/staging/ktap/interpreter/opcode.c          |  127 --
 drivers/staging/ktap/interpreter/strfmt.c          |  196 --
 drivers/staging/ktap/interpreter/table.c           | 1292 -------------
 drivers/staging/ktap/interpreter/transport.c       |  636 -------
 drivers/staging/ktap/interpreter/tstring.c         |  287 ---
 drivers/staging/ktap/interpreter/vm.c              | 1369 --------------
 drivers/staging/ktap/scripts/basic/backtrace.kp    |    6 -
 .../staging/ktap/scripts/basic/event_trigger.kp    |   24 -
 .../ktap/scripts/basic/event_trigger_ftrace.kp     |   28 -
 drivers/staging/ktap/scripts/basic/ftrace.kp       |    6 -
 .../staging/ktap/scripts/basic/function_time.kp    |   57 -
 drivers/staging/ktap/scripts/basic/kretprobe.kp    |    6 -
 drivers/staging/ktap/scripts/game/tetris.kp        |  328 ----
 drivers/staging/ktap/scripts/helloworld.kp         |    3 -
 .../staging/ktap/scripts/interrupt/hardirq_time.kp |   25 -
 .../staging/ktap/scripts/interrupt/softirq_time.kp |   25 -
 .../staging/ktap/scripts/io/kprobes-do-sys-open.kp |   20 -
 drivers/staging/ktap/scripts/io/traceio.kp         |   56 -
 drivers/staging/ktap/scripts/mem/kmalloc-top.kp    |   17 -
 drivers/staging/ktap/scripts/mem/kmem.kp           |   30 -
 .../ktap/scripts/profiling/function_profiler.kp    |   41 -
 .../ktap/scripts/profiling/stack_profile.kp        |   26 -
 .../ktap/scripts/schedule/sched_transition.kp      |    5 -
 .../staging/ktap/scripts/schedule/schedtimes.kp    |  125 --
 drivers/staging/ktap/scripts/syscalls/errinfo.kp   |  145 --
 drivers/staging/ktap/scripts/syscalls/sctop.kp     |   14 -
 drivers/staging/ktap/scripts/syscalls/syscalls.kp  |    6 -
 .../ktap/scripts/syscalls/syscalls_count.kp        |   56 -
 .../scripts/syscalls/syscalls_count_by_proc.kp     |   24 -
 .../staging/ktap/scripts/tracepoints/eventcount.kp |  212 ---
 .../ktap/scripts/tracepoints/eventcount_by_proc.kp |   59 -
 .../ktap/scripts/tracepoints/tracepoints.kp        |    6 -
 .../ktap/scripts/userspace/uprobes-malloc.kp       |    9 -
 drivers/staging/ktap/test/aggr_table.kp            |   50 -
 drivers/staging/ktap/test/ansi.kp                  |   20 -
 drivers/staging/ktap/test/arg.kp                   |   24 -
 drivers/staging/ktap/test/arith.kp                 |   27 -
 drivers/staging/ktap/test/bench/sembench.c         |  556 ------
 drivers/staging/ktap/test/bench/test.sh            |   25 -
 drivers/staging/ktap/test/concat.kp                |   15 -
 drivers/staging/ktap/test/count.kp                 |   20 -
 drivers/staging/ktap/test/fibonacci.kp             |   36 -
 drivers/staging/ktap/test/function.kp              |   88 -
 drivers/staging/ktap/test/if.kp                    |   24 -
 drivers/staging/ktap/test/kprobe.kp                |   14 -
 drivers/staging/ktap/test/kretprobe.kp             |   14 -
 drivers/staging/ktap/test/len.kp                   |   25 -
 drivers/staging/ktap/test/looping.kp               |   40 -
 drivers/staging/ktap/test/pairs.kp                 |   45 -
 drivers/staging/ktap/test/run_test.sh              |   58 -
 drivers/staging/ktap/test/table.kp                 |   71 -
 drivers/staging/ktap/test/timer.kp                 |   28 -
 drivers/staging/ktap/test/tracepoint.kp            |   22 -
 drivers/staging/ktap/test/zerodivide.kp            |    5 -
 drivers/staging/ktap/userspace/code.c              |  968 ----------
 drivers/staging/ktap/userspace/dump.c              |  187 --
 drivers/staging/ktap/userspace/eventdef.c          |  588 ------
 drivers/staging/ktap/userspace/ktapc.h             |  376 ----
 drivers/staging/ktap/userspace/ktapio.c            |  108 --
 drivers/staging/ktap/userspace/lex.c               |  622 -------
 drivers/staging/ktap/userspace/main.c              |  609 -------
 drivers/staging/ktap/userspace/parser.c            | 1910 --------------------
 drivers/staging/ktap/userspace/util.c              |  346 ----
 79 files changed, 16368 deletions(-)
 delete mode 100644 drivers/staging/ktap/Kconfig
 delete mode 100644 drivers/staging/ktap/Makefile
 delete mode 100644 drivers/staging/ktap/README.md
 delete mode 100644 drivers/staging/ktap/doc/tutorial.md
 delete mode 100644 drivers/staging/ktap/include/ktap.h
 delete mode 100644 drivers/staging/ktap/include/ktap_opcodes.h
 delete mode 100644 drivers/staging/ktap/include/ktap_types.h
 delete mode 100644 drivers/staging/ktap/interpreter/ktap.c
 delete mode 100644 drivers/staging/ktap/interpreter/library/ansilib.c
 delete mode 100644 drivers/staging/ktap/interpreter/library/baselib.c
 delete mode 100644 drivers/staging/ktap/interpreter/library/kdebug.c
 delete mode 100644 drivers/staging/ktap/interpreter/library/timer.c
 delete mode 100644 drivers/staging/ktap/interpreter/loader.c
 delete mode 100644 drivers/staging/ktap/interpreter/object.c
 delete mode 100644 drivers/staging/ktap/interpreter/opcode.c
 delete mode 100644 drivers/staging/ktap/interpreter/strfmt.c
 delete mode 100644 drivers/staging/ktap/interpreter/table.c
 delete mode 100644 drivers/staging/ktap/interpreter/transport.c
 delete mode 100644 drivers/staging/ktap/interpreter/tstring.c
 delete mode 100644 drivers/staging/ktap/interpreter/vm.c
 delete mode 100644 drivers/staging/ktap/scripts/basic/backtrace.kp
 delete mode 100644 drivers/staging/ktap/scripts/basic/event_trigger.kp
 delete mode 100644 drivers/staging/ktap/scripts/basic/event_trigger_ftrace.kp
 delete mode 100644 drivers/staging/ktap/scripts/basic/ftrace.kp
 delete mode 100644 drivers/staging/ktap/scripts/basic/function_time.kp
 delete mode 100644 drivers/staging/ktap/scripts/basic/kretprobe.kp
 delete mode 100644 drivers/staging/ktap/scripts/game/tetris.kp
 delete mode 100644 drivers/staging/ktap/scripts/helloworld.kp
 delete mode 100644 drivers/staging/ktap/scripts/interrupt/hardirq_time.kp
 delete mode 100644 drivers/staging/ktap/scripts/interrupt/softirq_time.kp
 delete mode 100644 drivers/staging/ktap/scripts/io/kprobes-do-sys-open.kp
 delete mode 100644 drivers/staging/ktap/scripts/io/traceio.kp
 delete mode 100644 drivers/staging/ktap/scripts/mem/kmalloc-top.kp
 delete mode 100644 drivers/staging/ktap/scripts/mem/kmem.kp
 delete mode 100644 drivers/staging/ktap/scripts/profiling/function_profiler.kp
 delete mode 100644 drivers/staging/ktap/scripts/profiling/stack_profile.kp
 delete mode 100644 drivers/staging/ktap/scripts/schedule/sched_transition.kp
 delete mode 100644 drivers/staging/ktap/scripts/schedule/schedtimes.kp
 delete mode 100644 drivers/staging/ktap/scripts/syscalls/errinfo.kp
 delete mode 100644 drivers/staging/ktap/scripts/syscalls/sctop.kp
 delete mode 100644 drivers/staging/ktap/scripts/syscalls/syscalls.kp
 delete mode 100644 drivers/staging/ktap/scripts/syscalls/syscalls_count.kp
 delete mode 100644 drivers/staging/ktap/scripts/syscalls/syscalls_count_by_proc.kp
 delete mode 100644 drivers/staging/ktap/scripts/tracepoints/eventcount.kp
 delete mode 100644 drivers/staging/ktap/scripts/tracepoints/eventcount_by_proc.kp
 delete mode 100644 drivers/staging/ktap/scripts/tracepoints/tracepoints.kp
 delete mode 100644 drivers/staging/ktap/scripts/userspace/uprobes-malloc.kp
 delete mode 100644 drivers/staging/ktap/test/aggr_table.kp
 delete mode 100644 drivers/staging/ktap/test/ansi.kp
 delete mode 100644 drivers/staging/ktap/test/arg.kp
 delete mode 100644 drivers/staging/ktap/test/arith.kp
 delete mode 100644 drivers/staging/ktap/test/bench/sembench.c
 delete mode 100644 drivers/staging/ktap/test/bench/test.sh
 delete mode 100644 drivers/staging/ktap/test/concat.kp
 delete mode 100644 drivers/staging/ktap/test/count.kp
 delete mode 100644 drivers/staging/ktap/test/fibonacci.kp
 delete mode 100644 drivers/staging/ktap/test/function.kp
 delete mode 100644 drivers/staging/ktap/test/if.kp
 delete mode 100644 drivers/staging/ktap/test/kprobe.kp
 delete mode 100644 drivers/staging/ktap/test/kretprobe.kp
 delete mode 100644 drivers/staging/ktap/test/len.kp
 delete mode 100644 drivers/staging/ktap/test/looping.kp
 delete mode 100644 drivers/staging/ktap/test/pairs.kp
 delete mode 100644 drivers/staging/ktap/test/run_test.sh
 delete mode 100644 drivers/staging/ktap/test/table.kp
 delete mode 100644 drivers/staging/ktap/test/timer.kp
 delete mode 100644 drivers/staging/ktap/test/tracepoint.kp
 delete mode 100644 drivers/staging/ktap/test/zerodivide.kp
 delete mode 100644 drivers/staging/ktap/userspace/code.c
 delete mode 100644 drivers/staging/ktap/userspace/dump.c
 delete mode 100644 drivers/staging/ktap/userspace/eventdef.c
 delete mode 100644 drivers/staging/ktap/userspace/ktapc.h
 delete mode 100644 drivers/staging/ktap/userspace/ktapio.c
 delete mode 100644 drivers/staging/ktap/userspace/lex.c
 delete mode 100644 drivers/staging/ktap/userspace/main.c
 delete mode 100644 drivers/staging/ktap/userspace/parser.c
 delete mode 100644 drivers/staging/ktap/userspace/util.c

diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 3b1501b7d894..3bfdaa8d80a9 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -150,6 +150,4 @@ source "drivers/staging/dgnc/Kconfig"
 
 source "drivers/staging/dgap/Kconfig"
 
-source "drivers/staging/ktap/Kconfig"
-
 endif # STAGING
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index 2270ed077bde..b0d3303b4680 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -67,4 +67,3 @@ obj-$(CONFIG_XILLYBUS)		+= xillybus/
 obj-$(CONFIG_DGNC)			+= dgnc/
 obj-$(CONFIG_DGAP)			+= dgap/
 obj-$(CONFIG_MTD_SPINAND_MT29F)	+= mt29f_spinand/
-obj-$(CONFIG_KTAP)		+= ktap/
diff --git a/drivers/staging/ktap/Kconfig b/drivers/staging/ktap/Kconfig
deleted file mode 100644
index 21f8d2ed03b9..000000000000
--- a/drivers/staging/ktap/Kconfig
+++ /dev/null
@@ -1,21 +0,0 @@
-config KTAP
-	tristate "a programable dynamic tracing tool for Linux"
-	depends on PERF_EVENTS && EVENT_TRACING
-	default n
-	help
-	  ktap is a new script-based dynamic tracing tool for Linux,
-	  it uses a scripting language and lets users trace the
-	  Linux kernel dynamically. ktap is designed to give
-	  operational insights with interoperability that allow
-	  users to tune, troubleshoot and extend kernel and application.
-	  It's similar with Linux Systemtap and Solaris Dtrace.
-
-	  ktap have different design principles from Linux mainstream
-	  dynamic tracing language in that it's based on bytecode,
-	  so it doesn't depend upon GCC, doesn't require compiling
-	  kernel module for each script, safe to use in production
-	  environment, fulfilling the embedded ecosystem's tracing needs.
-
-	  See ktap tutorial for more information:
-	      http://www.ktap.org/doc/tutorial.html
-
diff --git a/drivers/staging/ktap/Makefile b/drivers/staging/ktap/Makefile
deleted file mode 100644
index e2e54baf36d9..000000000000
--- a/drivers/staging/ktap/Makefile
+++ /dev/null
@@ -1,101 +0,0 @@
-
-# Do not instrument the tracer itself:
-ifdef CONFIG_FUNCTION_TRACER
-ORIG_CFLAGS := $(KBUILD_CFLAGS)
-KBUILD_CFLAGS = $(subst -pg,,$(ORIG_CFLAGS))
-endif
-
-all: mod ktap
-
-INTP = interpreter
-
-LIBDIR = $(INTP)/library
-
-LIB_OBJS += $(LIBDIR)/baselib.o $(LIBDIR)/kdebug.o $(LIBDIR)/timer.o \
-		$(LIBDIR)/ansilib.o
-
-INTP_OBJS += $(INTP)/ktap.o $(INTP)/loader.o $(INTP)/object.o \
-		$(INTP)/tstring.o $(INTP)/table.o $(INTP)/vm.o \
-		$(INTP)/opcode.o $(INTP)/strfmt.o $(INTP)/transport.o \
-		$(LIB_OBJS)
-
-obj-m		+= ktapvm.o
-ktapvm-y	:= $(INTP_OBJS)
-
-KVERSION ?= $(shell uname -r)
-KERNEL_SRC ?= /lib/modules/$(KVERSION)/build
-mod:
-	$(MAKE) -C $(KERNEL_SRC) M=$(PWD) modules
-
-modules_install:
-	$(MAKE) -C $(KERNEL_SRC) M=$(PWD) modules_install
-
-KTAPC_CFLAGS = -Wall -O2
-
-UDIR = userspace
-
-$(UDIR)/lex.o: $(UDIR)/lex.c
-	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
-$(UDIR)/parser.o: $(UDIR)/parser.c
-	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
-$(UDIR)/code.o: $(UDIR)/code.c
-	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
-$(UDIR)/dump.o: $(UDIR)/dump.c
-	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
-$(UDIR)/main.o: $(UDIR)/main.c
-	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
-$(UDIR)/util.o: $(UDIR)/util.c
-	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
-$(UDIR)/ktapio.o: $(UDIR)/ktapio.c
-	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
-$(UDIR)/eventdef.o: $(UDIR)/eventdef.c
-	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
-$(UDIR)/opcode.o: $(INTP)/opcode.c
-	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
-$(UDIR)/table.o: $(INTP)/table.c
-	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
-$(UDIR)/tstring.o: $(INTP)/tstring.c
-	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
-$(UDIR)/object.o: $(INTP)/object.c
-	$(QUIET_CC)$(CC) $(DEBUGINFO_FLAG) $(KTAPC_CFLAGS) -o $@ -c $<
-
-KTAPOBJS =
-KTAPOBJS += $(UDIR)/lex.o
-KTAPOBJS += $(UDIR)/parser.o
-KTAPOBJS += $(UDIR)/code.o
-KTAPOBJS += $(UDIR)/dump.o
-KTAPOBJS += $(UDIR)/main.o
-KTAPOBJS += $(UDIR)/util.o
-KTAPOBJS += $(UDIR)/ktapio.o
-KTAPOBJS += $(UDIR)/eventdef.o
-KTAPOBJS += $(UDIR)/opcode.o
-KTAPOBJS += $(UDIR)/table.o
-KTAPOBJS += $(UDIR)/tstring.o
-KTAPOBJS += $(UDIR)/object.o
-
-ktap: $(KTAPOBJS)
-	$(QUIET_LINK)$(CC) $(KTAPC_CFLAGS) -o $@ $(KTAPOBJS) -lpthread
-
-KMISC := /lib/modules/$(KVERSION)/ktapvm/
-
-install: mod ktap
-	install -d $(KMISC)
-	install -m 644 -c *.ko /lib/modules/$(KVERSION)/ktapvm/
-	/sbin/depmod -a
-
-load:
-	insmod ktapvm.ko
-
-unload:
-	rmmod ktapvm
-
-test: FORCE
-	cd test; sh ./run_test.sh; cd -
-
-clean:
-	$(MAKE) -C $(KERNEL_SRC) M=$(PWD) clean
-	$(RM) ktap
-
-PHONY += FORCE
-FORCE:
-
diff --git a/drivers/staging/ktap/README.md b/drivers/staging/ktap/README.md
deleted file mode 100644
index c8ddd5fa66c6..000000000000
--- a/drivers/staging/ktap/README.md
+++ /dev/null
@@ -1,144 +0,0 @@
-# ktap
-
-A New Scripting Dynamic Tracing Tool For Linux  
-[www.ktap.org][homepage]
-
-ktap is a new scripting dynamic tracing tool for Linux,
-it uses a scripting language and lets users trace the Linux kernel dynamically.
-ktap is designed to give operational insights with interoperability
-that allows users to tune, troubleshoot and extend kernel and application.
-It's similar with Linux Systemtap and Solaris Dtrace.
-
-ktap have different design principles from Linux mainstream dynamic tracing
-language in that it's based on bytecode, so it doesn't depend upon GCC,
-doesn't require compiling kernel module for each script, safe to use in
-production environment, fulfilling the embedded ecosystem's tracing needs.
-
-More information can be found at [ktap homepage][homepage].
-
-[homepage]: http://www.ktap.org
-
-## Highlights
-
-  * simple but powerful scripting language
-  * register based interpreter (heavily optimized) in Linux kernel
-  * small and lightweight (6KLOC of interpreter)
-  * not depend on gcc for each script running
-  * easy to use in embedded environment without debugging info
-  * support for tracepoint, kprobe, uprobe, function trace, timer, and more
-  * supported in x86, arm, ppc, mips
-  * safety in sandbox
-
-## Building & Running
-
-1. Clone ktap from github
-
-        $ git clone http://github.com/ktap/ktap.git
-
-2. Compiling ktap
-
-        $ cd ktap
-        $ make       #generate ktapvm kernel module and ktap binary
-
-3. Load ktapvm kernel module(make sure debugfs mounted)
-
-        $ make load  #need to be root or have sudo access
-
-4. Running ktap
-
-        $ ./ktap scripts/helloworld.kp
-
-
-## Examples
-
-1. simplest one-liner command to enable all tracepoints
-
-        ktap -e "trace *:* { print(argevent) }"
-
-2. syscall tracing on target process
-
-        ktap -e "trace syscalls:* { print(argevent) }" -- ls
-
-3. function tracing
-
-        ktap -e "trace ftrace:function { print(argevent) }"
-
-        ktap -e "trace ftrace:function /ip==mutex*/ { print(argevent) }"
-
-4. simple syscall tracing
-
-        trace syscalls:* {
-                print(cpu(), pid(), execname(), argevent)
-        }
-
-5. syscall tracing in histogram style
-
-        s = {}
-
-        trace syscalls:sys_enter_* {
-                s[argname] += 1
-        }
-
-        trace_end {
-                histogram(s)
-        }
-
-6. kprobe tracing
-
-        trace probe:do_sys_open dfd=%di fname=%dx flags=%cx mode=+4($stack) {
-                print("entry:", execname(), argevent)
-        }
-
-        trace probe:do_sys_open%return fd=$retval {
-                print("exit:", execname(), argevent)
-        }
-
-7. uprobe tracing
-
-        trace probe:/lib/libc.so.6:0x000773c0 {
-                print("entry:", execname(), argevent)
-        }
-
-        trace probe:/lib/libc.so.6:0x000773c0%return {
-                print("exit:", execname(), argevent)
-        }
-
-8. timer
-
-        tick-1ms {
-                printf("time fired on one cpu\n");
-        }
-
-        profile-2s {
-                printf("time fired on every cpu\n");
-        }
-
-More sample scripts can be found at scripts/ directory.
-
-## Mailing list
-
-ktap@freelists.org  
-You can subscribe to ktap mailing list at link (subscribe before posting):
-http://www.freelists.org/list/ktap
-
-
-## Copyright and License
-
-ktap is licensed under GPL v2
-
-Copyright (C) 2012-2013, Jovi Zhangwei <jovi.zhangwei@gmail.com>.
-All rights reserved.  
-
-
-## Contribution
-
-ktap is still under active development, so contributions are welcome.
-You are encouraged to report bugs, provide feedback, send feature request,
-or hack on it.
-
-
-## See More
-
-More info can be found at [documentation][tutorial]
-[tutorial]: http://www.ktap.org/doc/tutorial.html
-
diff --git a/drivers/staging/ktap/doc/tutorial.md b/drivers/staging/ktap/doc/tutorial.md
deleted file mode 100644
index 3c32ce77a731..000000000000
--- a/drivers/staging/ktap/doc/tutorial.md
+++ /dev/null
@@ -1,552 +0,0 @@
-% The ktap Tutorial
-
-# Introduction
-
-ktap is a new scripting dynamic tracing tool for linux
-
-ktap is a new scripting dynamic tracing tool for Linux,
-it uses a scripting language and lets users trace the Linux kernel dynamically.
-ktap is designed to give operational insights with interoperability
-that allows users to tune, troubleshoot and extend kernel and application.
-It's similar with Linux Systemtap and Solaris Dtrace.
-
-ktap have different design principles from Linux mainstream dynamic tracing
-language in that it's based on bytecode, so it doesn't depend upon GCC,
-doesn't require compiling kernel module for each script, safe to use in
-production environment, fulfilling the embedded ecosystem's tracing needs.
-
-Highlights features:
-
-* simple but powerful scripting language
-* register based interpreter (heavily optimized) in Linux kernel
-* small and lightweight (6KLOC of interpreter)
-* not depend on gcc for each script running
-* easy to use in embedded environment without debugging info
-* support for tracepoint, kprobe, uprobe, function trace, timer, and more
-* supported in x86, arm, ppc, mips
-* safety in sandbox
-
-
-# Getting started
-
-Requirements
-
-* Linux 3.1 or later(Need some kernel patches for kernel earlier than 3.1)
-* CONFIG_EVENT_TRACING enabled
-* CONFIG_PERF_EVENTS enabled
-* CONFIG_DEBUG_FS enabled  
-  (make sure debugfs mounted before insmod ktapvm  
-   mount debugfs: mount -t debugfs none /sys/kernel/debug/)
-
-Note that those configuration is always enabled in Linux distribution,
-like REHL, Fedora, Ubuntu, etc.
-
-1. Clone ktap from github
-
-        $ git clone http://github.com/ktap/ktap.git
-
-2. Compiling ktap
-
-        $ cd ktap
-        $ make       #generate ktapvm kernel module and ktap binary
-
-3. Load ktapvm kernel module(make sure debugfs mounted)
-
-        $ make load  #need to be root or have sudo access
-
-4. Running ktap
-
-        $ ./ktap scripts/helloworld.kp
-
-
-# Language basics
-
-## Syntax basics
-
-ktap's syntax is design on the mind of C language syntax friendly,
-to make it easy scripting by kernel developer.
-
-1. Variable declaration
-The biggest syntax differences with C is that ktap is a dynamic typed
-language, so you won't need add any variable type declaration, just
-use the variable.
-
-2. function
-All functions in ktap should use keyword "function" declaration
-
-3. comments
-The comments of ktap is starting from '#', long comments doesn't support now.
-
-4. others
-Don't need place any ';' at the ending of statement in ktap.
-ktap use free syntax style, so you can choose to use the ';' or not.
-
-ktap use nil as NULL, the result of any number operate on nil is nil.
-
-ktap don't have array structure, also don't have any pointer operation.
-
-## Control structures
-
-ktap if/else is same as C language.
-
-There have two method of for-loop in ktap:
-
-    for (i = init, limit, step) { body }
-
-this is same as below in C:
-
-    for (i = init; i < limit; i += step) { body }
-
-The next for-loop method is:
-
-    for (k, v in pairs(t)) { body }   # looping all elements of table
-
-Note that ktap don't have "continue" keyword, but C does.
-
-## Date structures
-
-Associative array is heavily used in ktap, it's also called by table.
-
-table declaration:
-
-    t = {}
-
-how to use table:  
-
-    t[1] = 1
-    t[1] = "xxx"
-    t["key"] = 10
-    t["key"] = "value"
-
-    for (k, v in pairs(t)) { body }   # looping all elements of table
-
-
-# Built in functions and librarys
-
-## Built in functions
-
-**print (...)**  
-Receives any number of arguments, and prints their values,
-print is not intended for formatted output, but only as a
-quick way to show a value, typically for debugging.
-For formatted output, use printf.
-
-**printf (fmt, ...)**  
-Similar with C printf, use for format string output.
-
-**pairs (t)**  
-Returns three values: the next function, the table t, and nil,
-so that the construction
-for (k,v in pairs(t)) { body }
-will iterate over all key-value pairs of table t.
-
-**len (t) /len (s)**  
-If the argument is string, return length of string,
-if the argument is table, return counts of table pairs.
-
-**in_interrupt ()**  
-checking is context is interrupt context
-  
-**exit ()**  
-quit ktap executing, similar with exit syscall
-
-**pid ()**  
-return current process pid
-
-**execname ()**  
-return current process exec name string
-
-**cpu ()**  
-return current cpu id
-
-**arch ()**  
-return machine architecture, like x86, arm, etc.
-
-**kernel_v ()**  
-return Linux kernel version string, like 3.9, etc.
-
-**user_string (addr)**  
-Receive userspace address, read string from userspace, return string.
-
-**histogram (t)**  
-Receive table, output table histogram to user.
-
-**curr_task_info (offset, fetch_bytes)**  
-fetch value in field offset of task_struct structure, argument fetch_bytes
-could be 4 or 8, if fetch_bytes is not given, default is 4.
-
-user may need to get field offset by gdb, for example:
-gdb vmlinux
-(gdb)p &(((struct task_struct *)0).prio)
-
-**print_backtrace ()**  
-print current task stack info
-
-
-## Librarys
-
-### Kdebug Library
-
-**kdebug.probe_by_id (event_ids, eventfun)**
-
-This function is underly representation of high level tracing primitive.
-event_ids is the id of all events, it's read from  
-/sys/kernel/debug/tracing/events/$SYS/$EVENT/id
-
-for multi-events tracing, the event_ids is concatenation of all id, for example:
- "2 3 4", seperated by blank space.
-
-The second argument in above examples is a function:  
-function eventfun () { action }
-
-
-**kdebug.probe_end (endfunc)**  
-
-This function is used for invoking a function when tracing end, it will wait
-until user press CTRL+C to stop tracing, then ktap will call endfunc function, 
-user could show tracing results in that function, or do other things.
-
-
-### Timer Library
-
-
-
-# Linux tracing basics
-
-tracepoints, probe, timer  
-filters  
-above explaintion  
-Ring buffer
-
-# Tracing semantics in ktap
-
-## Tracing block
-
-**trace EVENTDEF /FILTER/ { ACTION }**
-
-This is the basic tracing block for ktap, you need to use a specific EVENTDEF
-string, and own event function.
-
-EVENTDEF is compatible with perf(see perf-list), with glob match, for example:
-
-	syscalls:*			trace all syscalls events
-	syscalls:sys_enter_*		trace all syscalls entry events
-	kmem:*				trace all kmem related events
-	sched:*				trace all sched related events
-	*:*				trace all tracepoints in system.
-
-All events are based on: /sys/kernel/debug/tracing/events/$SYS/$EVENT
-
-**trace_end { ACTION }**
-
-This is based on kdebug.probe_end function.
-
-## Tracing built-in variable  
-
-**argevent**  
-event object, you can print it by: print(argevent), it will print events
-into human readable string, the result is mostly same as each entry of
-/sys/kernel/debug/tracing/trace
-
-**argname**  
-event name, each event have a name associated with it.
-
-**arg1..9**  
-get argument 1..9 of event object.
-
-
-## Timer syntax
-
-**tick-Ns        { ACTION }**  
-**tick-Nsec      { ACTION }**  
-**tick-Nms       { ACTION }**  
-**tick-Nmsec     { ACTION }**  
-**tick-Nus       { ACTION }**  
-**tick-Nusec     { ACTION }**
-
-**profile-Ns     { ACTION }**  
-**profile-Nsec   { ACTION }**  
-**profile-Nms    { ACTION }**  
-**profile-Nmsec  { ACTION }**  
-**profile-Nus    { ACTION }**  
-**profile-Nusec  { ACTION }**  
-
-architecture overview picture reference(pnp format)  
-one-liners  
-simple event tracing
-
-# Advanced tracing pattern
-
-Aggregation/Histogram  
-thread local  
-flame graph
-
-# Overhead/Performance
-
-ktap have more fast boot time thant Systemtap(try the helloword script)  
-ktap have little memory usage than Systemtap  
-and some scripts show that ktap have a little overhead then Systemtap
-(we choosed two scripts to compare, function profile, stack profile.
-this is not means all scripts in Systemtap have big overhead than ktap)
-
-
-# FAQ
-
-**Q: Why use bytecode design?**  
-A: Using bytecode would be a clean and lightweight solution,
-   you don't need gcc toolchain to compile every scripts, all you
-   need is a ktapvm kernel modules and userspace tool called ktap.
-   Since its language virtual machine design, it have great portability,
-   suppose you are working at a multi-arch cluster, if you want to run
-   a tracing script on each board, you won't need cross-compile tracing
-   script onto all board, what you really need to do is use ktap tool
-   to run script just in time.
-
-   Bytecode based design also will make executing more safer, than native code
-   generation.
-
-   Reality already showing that SystemTap is not widely used in embedded Linux,
-   caused by problem of SystemTap's architecture design choice, it's a natural
-   design for Redhat and IBM, because Redhat/IBM is focusing on server area,
-   not embedded area.
-
-**Q: What's the differences with SystemTap and Dtrace?**  
-A: For SystemTap, the answer is already mentioned at above question,
-   SystemTap use translator design, for trade-off on performance with usability,
-   based on GCC, that's what ktap want to solve.
-
-   For Dtrace, one common design with Dtrace is also use bytecode, so basically
-   Dtrace and ktap is on the same road. There have some projects aim to porting
-   Dtrace from Solaris to Linux, but the process is still on the road, Dtrace
-   is rooted in Solaris, and there have many huge differences between Solaris
-   tracing infrastructure with Linux's.
-
-   Dtrace is based on D language, a language subset of C, it's a restricted
-   language, like without for-looping, for safty use in production system.
-   It seems that Dtrace for Linux only support x86 architecture, not work on
-   powerpc and arm/mips, obviously it's not suit for embedded Linux currently.
-
-   Dtrace use ctf as input for debuginfo handing, compare with vmlinux for
-   SystemTap.
-
-   On the license part, Dtrace is released as CDDL, which is incompatible with
-   GPL(this is why it's impossible to upstream Dtrace into mainline).
-
-**Q: Why use dynamically typed language? but not statically typed language?**  
-A: It's hard to say which one is more better than other, dynamically typed
-   language bring efficiency and fast prototype production, but loosing type
-   check at compiling phase, and easy to make mistake in runtime, also it's
-   need many runtime checking, In contrast, statically typed language win on
-   programing safety, and performance. Statically language would suit for
-   interoperate with kernel, as kernel is wrote mainly in C, Need to note that
-   SystemTap and Dtrace both is statically language.
-
-   ktap choose dynamically typed language as initial implementation.
-
-**Q: Why we need ktap for event tracing? There already have a built-in ftrace**  
-A: This also is a common question for all dynamic tracing tool, not only ktap.
-   ktap provide more flexibility than built-in tracing infrastructure. Suppose
-   you need print a global variable when tracepoint hit, or you want print
-   backtrace, even more, you want to store some info into associative array, and
-   display it in histogram style when tracing end, in these case, some of them
-   ftrace can take it, some of them ftrace can not.
-   Overall, ktap provide you with great flexibility to scripting your own trace
-   need.
-
-**Q: How about the performance? Is ktap slow?**  
-A: ktap is not slow, the bytecode is very high-level, based on lua, the language
-   virtual machine is register-based(compare with stack-based), with little
-   instruction, the table data structure is heavily optimized in ktapvm.
-   ktap use per-cpu allocation in many place, without global locking scheme,
-   it's very fast when executing tracepoint callback.
-   Performance benchmark showing that the overhead of ktap running is nearly
-   10%(store event name into associative array), compare with full speed
-   running without any tracepoint enabled.
-
-   ktap will optimize overhead all the time, hopefully the overhead will
-   decrease to little than 5%, even more.
-
-**Q: Why not porting a high level language implementation into kernel directly?
-   Like python/JVM?**  
-A: I take serious on the size of vm and memory footprint. Python vm is large,
-   it's not suit to embed into kernel, and python have some functionality
-   which we don't need.
-
-   The bytecode of other high level language is also big, ktap only have 32
-   bytecodes, python/java/erlang have nearly two hundred bytecodes.
-   There also have some problems when porting those language into kernel,
-   userspace programming have many differences with kernel programming,
-   like float numbers, handle sleeping code carefully in kernel, deadloop is
-   not allowed in kernel, multi-thread management, etc.., so it's impossible
-   to porting language implementation into kernel with little adaption work.
-
-**Q: What's the status of ktap now?**  
-A: Basically it works on x86-32, x86-64, powerpc, arm, it also could work for
-   other hardware architecture, but not proven yet(I don't have enough hardware
-   to test)
-   If you found some bug, fix it on you own programming skill, or report to me.
-
-**Q: How to hack ktap? I want to write some extensions onto ktap.**  
-A: welcome hacking.  
-   You can write your own library to fulfill your specific need,
-   you can write any script as you want.
-
-**Q: What's the plan of ktap? any roadmap?**  
-A: the current plan is deliver stable ktapvm kernel modules, more ktap script,
-   and bugfix.
-
-
-# References
-
-* [Linux Performance Analysis and Tools][LPAT]
-* [Dtrace Blog][dtraceblog]
-* [Dtrace User Guide][dug]
-* [LWN: ktap -- yet another kernel tracer][lwn]
-* [ktap introduction in LinuxCon Japan 2013][lcj]
-
-[LPAT]: http://www.brendangregg.com/Slides/SCaLE_Linux_Performance2013.pdf
-[dtraceblog]: http://dtrace.org/blogs/
-[dug]: http://docs.huihoo.com/opensolaris/dtrace-user-guide/html/index.html
-[lwn]: http://lwn.net/Articles/551314/
-[lcj]: http://events.linuxfoundation.org/sites/events/files/lcjpcojp13_zhangwei.pdf
-
-
-# History
-
-* ktap was invented at 2002
-* First RFC sent to LKML at 2012.12.31
-* The code was released in github at 2013.01.18
-* ktap released v0.1 at 2013.05.21
-* ktap released v0.2 at 2013.07.31
-
-For more release info, please look at RELEASES.txt in project root directory.
-
-# Sample scripts
-
-1. simplest one-liner command to enable all tracepoints
-
-        ktap -e "trace *:* { print(argevent) }"
-
-2. syscall tracing on target process
-
-        ktap -e "trace syscalls:* { print(argevent) }" -- ls
-
-3. function tracing
-
-        ktap -e "trace ftrace:function { print(argevent) }"
-
-        ktap -e "trace ftrace:function /ip==mutex*/ { print(argevent) }"
-
-4. simple syscall tracing
-
-        trace syscalls:* {
-                print(cpu(), pid(), execname(), argevent)
-        }
-
-5. syscall tracing in histogram style
-
-        s = {}
-
-        trace syscalls:sys_enter_* {
-                s[argname] += 1
-        }
-
-        trace_end {
-                histogram(s)
-        }
-
-6. kprobe tracing
-
-        trace probe:do_sys_open dfd=%di fname=%dx flags=%cx mode=+4($stack) {
-                print("entry:", execname(), argevent)
-        }
-
-        trace probe:do_sys_open%return fd=$retval {
-                print("exit:", execname(), argevent)
-        }
-
-7. uprobe tracing
-
-        trace probe:/lib/libc.so.6:0x000773c0 {
-                print("entry:", execname(), argevent)
-        }
-
-        trace probe:/lib/libc.so.6:0x000773c0%return {
-                print("exit:", execname(), argevent)
-        }
-
-8. timer
-
-        tick-1ms {
-                printf("time fired on one cpu\n");
-        }
-
-        profile-2s {
-                printf("time fired on every cpu\n");
-        }
-
-More sample scripts can be found at scripts/ directory.
-
-
-# Appendix
-
-Here is the complete syntax of ktap in extended BNF.
-(based on lua syntax: http://www.lua.org/manual/5.1/manual.html#5.1)
-
-        chunk ::= {stat [';']} [laststat [';']
-
-        block ::= chunk
-
-        stat ::=  varlist '=' explist | 
-                 functioncall | 
-                 { block } | 
-                 while exp { block } | 
-                 repeat block until exp | 
-                 if exp { block {elseif exp { block }} [else block] } | 
-                 for Name '=' exp ',' exp [',' exp] { block } | 
-                 for namelist in explist { block } | 
-                 function funcname funcbody | 
-                 local function Name funcbody | 
-                 local namelist ['=' explist] 
-
-        laststat ::= return [explist] | break
-
-        funcname ::= Name {'.' Name} [':' Name]
-
-        varlist ::= var {',' var}
-
-        var ::=  Name | prefixexp '[' exp ']'| prefixexp '.' Name 
-
-        namelist ::= Name {',' Name}
-
-        explist ::= {exp ',' exp
-
-        exp ::=  nil | false | true | Number | String | '...' | function | 
-                 prefixexp | tableconstructor | exp binop exp | unop exp 
-
-        prefixexp ::= var | functioncall | '(' exp ')'
-
-        functioncall ::=  prefixexp args | prefixexp ':' Name args 
-
-        args ::=  '(' [explist] ')' | tableconstructor | String 
-
-        function ::= function funcbody
-
-        funcbody ::= '(' [parlist] ')' { block }
-
-        parlist ::= namelist [',' '...'] | '...'
-
-        tableconstructor ::= '{' [fieldlist] '}'
-
-        fieldlist ::= field {fieldsep field} [fieldsep]
-
-        field ::= '[' exp ']' '=' exp | Name '=' exp | exp
-
-        fieldsep ::= ',' | ';'
-
-        binop ::= '+' | '-' | '*' | '/' | '^' | '%' | '..' | 
-                  '<' | '<=' | '>' | '>=' | '==' | '!=' | 
-                  and | or
-
-        unop ::= '-'
-
diff --git a/drivers/staging/ktap/include/ktap.h b/drivers/staging/ktap/include/ktap.h
deleted file mode 100644
index 076dd4aa6477..000000000000
--- a/drivers/staging/ktap/include/ktap.h
+++ /dev/null
@@ -1,169 +0,0 @@
-#ifndef __KTAP_H__
-#define __KTAP_H__
-
-#include "ktap_types.h"
-#include "ktap_opcodes.h"
-
-#include <linux/version.h>
-#include <linux/hardirq.h>
-#include <linux/perf_event.h>
-#include <linux/trace_seq.h>
-
-typedef struct ktap_Reg {
-        const char *name;
-        ktap_cfunction func;
-} ktap_Reg;
-
-struct ktap_probe_event {
-	struct list_head list;
-	struct perf_event *perf;
-	ktap_state *ks;
-	ktap_closure *cl;
-};
-
-/* this structure allocate on stack */
-struct ktap_event {
-	struct ktap_probe_event *pevent;
-	struct ftrace_event_call *call;
-	struct trace_entry *entry;
-	int entry_size;
-	struct pt_regs *regs;
-};
-
-enum {
-	KTAP_PERCPU_DATA_STATE,
-	KTAP_PERCPU_DATA_STACK,
-	KTAP_PERCPU_DATA_BUFFER,
-	KTAP_PERCPU_DATA_BUFFER2,
-	KTAP_PERCPU_DATA_BTRACE,
-
-	KTAP_PERCPU_DATA_MAX
-};
-
-#define KTAP_PERCPU_BUFFER_SIZE	(3 * PAGE_SIZE)
-
-int gettimeofday_us(void);
-ktap_state *kp_newstate(struct ktap_parm *parm, struct dentry *dir);
-void kp_exit(ktap_state *ks);
-void kp_final_exit(ktap_state *ks);
-ktap_state *kp_newthread(ktap_state *mainthread);
-void kp_exitthread(ktap_state *ks);
-ktap_closure *kp_load(ktap_state *ks, unsigned char *buff);
-void kp_call(ktap_state *ks, StkId func, int nresults);
-void kp_optimize_code(ktap_state *ks, int level, ktap_proto *f);
-void kp_register_lib(ktap_state *ks, const char *libname, const ktap_Reg *funcs);
-void *kp_percpu_data(int type);
-
-void kp_init_baselib(ktap_state *ks);
-void kp_init_oslib(ktap_state *ks);
-void kp_init_kdebuglib(ktap_state *ks);
-void kp_init_timerlib(ktap_state *ks);
-void kp_init_ansilib(ktap_state *ks);
-
-int kp_probe_init(ktap_state *ks);
-void kp_probe_exit(ktap_state *ks);
-
-void kp_perf_event_register(ktap_state *ks, struct perf_event_attr *attr,
-			    struct task_struct *task, char *filter,
-			    ktap_closure *cl);
-
-void kp_event_getarg(ktap_state *ks, ktap_value *ra, int n);
-void kp_event_tostring(ktap_state *ks, struct trace_seq *seq);
-
-int kp_strfmt(ktap_state *ks, struct trace_seq *seq);
-
-void kp_transport_write(ktap_state *ks, const void *data, size_t length);
-void kp_transport_event_write(ktap_state *ks, struct ktap_event *e);
-void kp_transport_print_backtrace(ktap_state *ks);
-void *kp_transport_reserve(ktap_state *ks, size_t length);
-void kp_transport_exit(ktap_state *ks);
-int kp_transport_init(ktap_state *ks, struct dentry *dir);
-
-void kp_exit_timers(ktap_state *ks);
-
-extern int kp_max_exec_count;
-
-/* get from kernel/trace/trace.h */
-static __always_inline int trace_get_context_bit(void)
-{
-	int bit;
-
-	if (in_interrupt()) {
-		if (in_nmi())
-			bit = 0;
-		else if (in_irq())
-			bit = 1;
-		else
-			bit = 2;
-	} else
-		bit = 3;
-
-	return bit;
-}
-
-/* use a special timer context kp_state instead use this recursion approach? */
-DECLARE_PER_CPU(int, kp_recursion_context[PERF_NR_CONTEXTS]);
-
-static __always_inline int get_recursion_context(void)
-{
-	int rctx = trace_get_context_bit();
-
-	if (__this_cpu_read(kp_recursion_context[rctx]))
-		return -1;
-
-	__this_cpu_write(kp_recursion_context[rctx], true);
-	barrier();
-
-	return rctx;
-}
-
-static inline void put_recursion_context(int rctx)
-{
-	barrier();
-	__this_cpu_write(kp_recursion_context[rctx], false);
-}
-
-
-extern unsigned int kp_stub_exit_instr;
-
-static inline void set_next_as_exit(ktap_state *ks)
-{
-	ktap_callinfo *ci;
-
-	ci = ks->ci;
-	if (!ci)
-		return;
-
-	ci->u.l.savedpc = &kp_stub_exit_instr;
-
-	/* See precall, ci changed to ci->prev after invoke C function */
-	if (ci->prev) {
-		ci = ci->prev;
-		ci->u.l.savedpc = &kp_stub_exit_instr;
-	}
-}
-
-#define kp_verbose_printf(ks, ...) \
-	if (G(ks)->parm->verbose)	\
-		kp_printf(ks, "[verbose] "__VA_ARGS__);
-
-/* get argument operation macro */
-#define kp_arg(ks, n)	((ks)->ci->func + (n))
-#define kp_arg_nr(ks)	((int)(ks->top - (ks->ci->func + 1)))
-
-#define kp_arg_check(ks, narg, type)				\
-	do {							\
-		if (unlikely(ttypenv(kp_arg(ks, narg)) != type)) {	\
-			kp_error(ks, "wrong type of argument %d\n", narg);\
-			return -1;				\
-		}						\
-	} while (0)
-
-
-#if LINUX_VERSION_CODE > KERNEL_VERSION(3, 5, 0)
-#define SPRINT_SYMBOL	sprint_symbol_no_offset
-#else
-#define SPRINT_SYMBOL	sprint_symbol
-#endif
-
-#endif /* __KTAP_H__ */
diff --git a/drivers/staging/ktap/include/ktap_opcodes.h b/drivers/staging/ktap/include/ktap_opcodes.h
deleted file mode 100644
index 31c558b680f4..000000000000
--- a/drivers/staging/ktap/include/ktap_opcodes.h
+++ /dev/null
@@ -1,240 +0,0 @@
-#ifndef __KTAP_BYTECODE_H__
-#define __KTAP_BYTECODE_H__
-
-
-/* opcode is copied from lua initially */
- 
-typedef enum {
-/*----------------------------------------------------------------------
- * name            args    description
- * ------------------------------------------------------------------------*/
-OP_MOVE,/*      A B     R(A) := R(B)                                    */
-OP_LOADK,/*     A Bx    R(A) := Kst(Bx)                                 */
-OP_LOADKX,/*    A       R(A) := Kst(extra arg)                          */
-OP_LOADBOOL,/*  A B C   R(A) := (Bool)B; if (C) pc++                    */
-OP_LOADNIL,/*   A B     R(A), R(A+1), ..., R(A+B) := nil                */
-OP_GETUPVAL,/*  A B     R(A) := UpValue[B]                              */
-
-OP_GETTABUP,/*  A B C   R(A) := UpValue[B][RK(C)]                       */
-OP_GETTABLE,/*  A B C   R(A) := R(B)[RK(C)]                             */
-
-OP_SETTABUP,/*  A B C   UpValue[A][RK(B)] := RK(C)                      */
-OP_SETTABUP_INCR,/*  A B C   UpValue[A][RK(B)] += RK(C)                 */
-OP_SETUPVAL,/*  A B     UpValue[B] := R(A)                              */
-OP_SETTABLE,/*  A B C   R(A)[RK(B)] := RK(C)                            */
-OP_SETTABLE_INCR,/*  A B C   R(A)[RK(B)] += RK(C)                       */
-
-OP_NEWTABLE,/*  A B C   R(A) := {} (size = B,C)                         */
-
-OP_SELF,/*      A B C   R(A+1) := R(B); R(A) := R(B)[RK(C)]             */
-
-OP_ADD,/*       A B C   R(A) := RK(B) + RK(C)                           */
-OP_SUB,/*       A B C   R(A) := RK(B) - RK(C)                           */
-OP_MUL,/*       A B C   R(A) := RK(B) * RK(C)                           */
-OP_DIV,/*       A B C   R(A) := RK(B) / RK(C)                           */
-OP_MOD,/*       A B C   R(A) := RK(B) % RK(C)                           */
-OP_POW,/*       A B C   R(A) := RK(B) ^ RK(C)                           */
-OP_UNM,/*       A B     R(A) := -R(B)                                   */
-OP_NOT,/*       A B     R(A) := not R(B)                                */
-OP_LEN,/*       A B     R(A) := length of R(B)                          */
-
-OP_CONCAT,/*    A B C   R(A) := R(B).. ... ..R(C)                       */
-
-OP_JMP,/*       A sBx   pc+=sBx; if (A) close all upvalues >= R(A) + 1  */
-OP_EQ,/*        A B C   if ((RK(B) == RK(C)) != A) then pc++            */
-OP_LT,/*        A B C   if ((RK(B) <  RK(C)) != A) then pc++            */
-OP_LE,/*        A B C   if ((RK(B) <= RK(C)) != A) then pc++            */
-
-OP_TEST,/*      A C     if not (R(A) <=> C) then pc++                   */
-OP_TESTSET,/*   A B C   if (R(B) <=> C) then R(A) := R(B) else pc++     */
-
-OP_CALL,/*      A B C   R(A), ... ,R(A+C-2) := R(A)(R(A+1), ... ,R(A+B-1)) */
-OP_TAILCALL,/*  A B C   return R(A)(R(A+1), ... ,R(A+B-1))              */
-OP_RETURN,/*    A B     return R(A), ... ,R(A+B-2)      (see note)      */
-
-OP_FORLOOP,/*   A sBx   R(A)+=R(A+2);
-                        if R(A) <?= R(A+1) then { pc+=sBx; R(A+3)=R(A) }*/
-OP_FORPREP,/*   A sBx   R(A)-=R(A+2); pc+=sBx                           */
-
-OP_TFORCALL,/*  A C     R(A+3), ... ,R(A+2+C) := R(A)(R(A+1), R(A+2));  */
-OP_TFORLOOP,/*  A sBx   if R(A+1) != nil then { R(A)=R(A+1); pc += sBx }*/
-
-OP_SETLIST,/*   A B C   R(A)[(C-1)*FPF+i] := R(A+i), 1 <= i <= B        */
-
-OP_CLOSURE,/*   A Bx    R(A) := closure(KPROTO[Bx])                     */
-
-OP_VARARG,/*    A B     R(A), R(A+1), ..., R(A+B-2) = vararg            */
-
-OP_EXTRAARG,/*   Ax      extra (larger) argument for previous opcode     */
-
-OP_EVENT,/*  A B C   R(A) := R(B)[C]                             */
-
-OP_EVENTNAME, /* A	R(A) = event_name() */
-
-OP_EVENTARG,/* A B	R(A) := event_arg(B)*/
-
-OP_LOAD_GLOBAL,/*  A B C   R(A) := R(B)[C]                             */
-
-OP_EXIT,
-
-} OpCode;
-
-
-#define NUM_OPCODES     ((int)OP_LOAD_GLOBAL + 1)
-
-
-enum OpMode {iABC, iABx, iAsBx, iAx};  /* basic instruction format */
-
-
-/*
- * ** size and position of opcode arguments.
- * */
-#define SIZE_C          9
-#define SIZE_B          9
-#define SIZE_Bx         (SIZE_C + SIZE_B)
-#define SIZE_A          8
-#define SIZE_Ax         (SIZE_C + SIZE_B + SIZE_A)
-
-#define SIZE_OP         6
-
-#define POS_OP          0
-#define POS_A           (POS_OP + SIZE_OP)
-#define POS_C           (POS_A + SIZE_A)
-#define POS_B           (POS_C + SIZE_C)
-#define POS_Bx          POS_C
-#define POS_Ax          POS_A
-
-
-
-/*
- * ** limits for opcode arguments.
- * ** we use (signed) int to manipulate most arguments,
- * ** so they must fit in LUAI_BITSINT-1 bits (-1 for sign)
- * */
-#define MAXARG_Bx        ((1<<SIZE_Bx)-1)
-#define MAXARG_sBx        (MAXARG_Bx>>1)         /* `sBx' is signed */
-
-#define MAXARG_Ax       ((1<<SIZE_Ax)-1)
-
-#define MAXARG_A        ((1<<SIZE_A)-1)
-#define MAXARG_B        ((1<<SIZE_B)-1)
-#define MAXARG_C        ((1<<SIZE_C)-1)
-
-
-/* creates a mask with `n' 1 bits at position `p' */
-#define MASK1(n,p)      ((~((~(ktap_instruction)0)<<(n)))<<(p))
-
-/* creates a mask with `n' 0 bits at position `p' */
-#define MASK0(n,p)      (~MASK1(n,p))
-
-/*
- * ** the following macros help to manipulate instructions
- * */
-
-#define GET_OPCODE(i)   ((OpCode)((i)>>POS_OP) & MASK1(SIZE_OP,0))
-#define SET_OPCODE(i,o) ((i) = (((i)&MASK0(SIZE_OP,POS_OP)) | \
-                ((((ktap_instruction)o)<<POS_OP)&MASK1(SIZE_OP,POS_OP))))
-
-#define getarg(i,pos,size)      ((int)((i)>>pos) & MASK1(size,0))
-#define setarg(i,v,pos,size)    ((i) = (((i)&MASK0(size,pos)) | \
-                ((((ktap_instruction)v)<<pos)&MASK1(size,pos))))
-
-#define GETARG_A(i)     getarg(i, POS_A, SIZE_A)
-#define SETARG_A(i,v)   setarg(i, v, POS_A, SIZE_A)
-
-#define GETARG_A(i)     getarg(i, POS_A, SIZE_A)
-#define SETARG_A(i,v)   setarg(i, v, POS_A, SIZE_A)
-
-#define GETARG_B(i)     getarg(i, POS_B, SIZE_B)
-#define SETARG_B(i,v)   setarg(i, v, POS_B, SIZE_B)
-
-#define GETARG_C(i)     getarg(i, POS_C, SIZE_C)
-#define SETARG_C(i,v)   setarg(i, v, POS_C, SIZE_C)
-
-#define GETARG_Bx(i)    getarg(i, POS_Bx, SIZE_Bx)
-#define SETARG_Bx(i,v)  setarg(i, v, POS_Bx, SIZE_Bx)
-
-#define GETARG_Ax(i)    getarg(i, POS_Ax, SIZE_Ax)
-#define SETARG_Ax(i,v)  setarg(i, v, POS_Ax, SIZE_Ax)
-
-#define GETARG_sBx(i)   (GETARG_Bx(i)-MAXARG_sBx)
-#define SETARG_sBx(i,b) SETARG_Bx((i), (unsigned int)(b)+MAXARG_sBx)
-
-#define CREATE_ABC(o,a,b,c)     (((ktap_instruction)(o))<<POS_OP) \
-                        | (((ktap_instruction)(a))<<POS_A) \
-                        | (((ktap_instruction)(b))<<POS_B) \
-                        | (((ktap_instruction)(c))<<POS_C)
-
-#define CREATE_ABx(o,a,bc)      (((ktap_instruction)(o))<<POS_OP) \
-                        | (((ktap_instruction)(a))<<POS_A) \
-                        | (((ktap_instruction)(bc))<<POS_Bx)
-
-#define CREATE_Ax(o,a)          (((ktap_instruction)(o))<<POS_OP) \
-                        | (((ktap_instruction)(a))<<POS_Ax)
-
-
-
-/*
- * ** Macros to operate RK indices
- * */
-
-/* this bit 1 means constant (0 means register) */
-#define BITRK           (1 << (SIZE_B - 1))
-
-/* test whether value is a constant */
-#define ISK(x)          ((x) & BITRK)
-
-/* gets the index of the constant */
-#define INDEXK(r)       ((int)(r) & ~BITRK)
-
-#define MAXINDEXRK      (BITRK - 1)
-
-/* code a constant index as a RK value */
-#define RKASK(x)        ((x) | BITRK)
-
-
-/*
- * ** invalid register that fits in 8 bits
- * */
-#define NO_REG          MAXARG_A
-
-
-/*
- * ** R(x) - register
- * ** Kst(x) - constant (in constant table)
- * ** RK(x) == if ISK(x) then Kst(INDEXK(x)) else R(x)
- * */
-
-
-
-/*
- * ** masks for instruction properties. The format is:
- * ** bits 0-1: op mode
- * ** bits 2-3: C arg mode
- * ** bits 4-5: B arg mode
- * ** bit 6: instruction set register A
- * ** bit 7: operator is a test (next instruction must be a jump)
- * */
-
-enum OpArgMask {
-  OpArgN,  /* argument is not used */
-  OpArgU,  /* argument is used */
-  OpArgR,  /* argument is a register or a jump offset */
-  OpArgK   /* argument is a constant or register/constant */
-};
-
-extern const u8 ktap_opmodes[NUM_OPCODES];
-
-#define getOpMode(m)    ((enum OpMode)ktap_opmodes[m] & 3)
-#define getBMode(m)     ((enum OpArgMask)(ktap_opmodes[m] >> 4) & 3)
-#define getCMode(m)     ((enum OpArgMask)(ktap_opmodes[m] >> 2) & 3)
-#define testAMode(m)    (ktap_opmodes[m] & (1 << 6))
-#define testTMode(m)    (ktap_opmodes[m] & (1 << 7))
-
-
-/* number of list items to accumulate before a SETLIST instruction */
-#define LFIELDS_PER_FLUSH       50
-
-extern const char *const ktap_opnames[NUM_OPCODES + 1];
-
-#endif /* __KTAP_BYTECODE_H__ */
diff --git a/drivers/staging/ktap/include/ktap_types.h b/drivers/staging/ktap/include/ktap_types.h
deleted file mode 100644
index cf1cef41b584..000000000000
--- a/drivers/staging/ktap/include/ktap_types.h
+++ /dev/null
@@ -1,674 +0,0 @@
-#ifndef __KTAP_TYPES_H__
-#define __KTAP_TYPES_H__
-
-/* opcode is copied from lua initially */
-
-#ifdef __KERNEL__
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/semaphore.h>
-#include <linux/wait.h>
-#else
-typedef char u8;
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#endif
-
-typedef struct ktap_parm {
-	char *trunk; /* __user */
-	int trunk_len;
-	int argc;
-	char **argv; /* __user */
-	int verbose;
-	int trace_pid;
-	int workload;
-	int trace_cpu;
-	int print_timestamp;
-} ktap_parm;
-
-/*
- * Ioctls that can be done on a ktap fd:
- * todo: use _IO macro in include/uapi/asm-generic/ioctl.h
- */
-#define KTAP_CMD_IOC_VERSION		('$' + 0)
-#define KTAP_CMD_IOC_RUN		('$' + 1)
-#define KTAP_CMD_IOC_EXIT		('$' + 3)
-
-#define KTAP_ENV	"_ENV"
-
-#define KTAP_VERSION_MAJOR       "0"
-#define KTAP_VERSION_MINOR       "2"
-
-#define KTAP_VERSION    "ktap " KTAP_VERSION_MAJOR "." KTAP_VERSION_MINOR
-#define KTAP_AUTHOR    "Jovi Zhangwei <jovi.zhangwei@gmail.com>"
-#define KTAP_COPYRIGHT  KTAP_VERSION "  Copyright (C) 2012-2013, " KTAP_AUTHOR
-
-#define MYINT(s)        (s[0] - '0')
-#define VERSION         (MYINT(KTAP_VERSION_MAJOR) * 16 + MYINT(KTAP_VERSION_MINOR))
-#define FORMAT          0 /* this is the official format */
-
-#define KTAP_SIGNATURE  "\033ktap"
-
-/* data to catch conversion errors */
-#define KTAPC_TAIL      "\x19\x93\r\n\x1a\n"
-
-/* size in bytes of header of binary files */
-#define KTAPC_HEADERSIZE	(sizeof(KTAP_SIGNATURE) - sizeof(char) + 2 + \
-				 6 + sizeof(KTAPC_TAIL) - sizeof(char))
-
-typedef int ktap_instruction;
-
-typedef union ktap_gcobject ktap_gcobject;
-
-#define CommonHeader ktap_gcobject *next; u8 tt;
-
-struct ktap_state;
-typedef int (*ktap_cfunction) (struct ktap_state *ks);
-
-typedef union ktap_string {
-	int dummy;  /* ensures maximum alignment for strings */
-	struct {
-		CommonHeader;
-		u8 extra;  /* reserved words for short strings; "has hash" for longs */
-		unsigned int hash;
-		size_t len;  /* number of characters in string */
-	} tsv;
-} ktap_string;
-
-#define getstr(ts)	(const char *)((ts) + 1)
-#define eqshrstr(a,b)	((a) == (b))
-
-#define svalue(o)       getstr(rawtsvalue(o))
-
-
-union _ktap_value {
-	ktap_gcobject *gc;    /* collectable objects */
-	void *p;         /* light userdata */
-	int b;           /* booleans */
-	ktap_cfunction f; /* light C functions */
-	long n;         /* numbers */
-};
-
-
-typedef struct ktap_value {
-	union _ktap_value val;
-	int type;
-} ktap_value;
-
-typedef ktap_value * StkId;
-
-
-
-typedef union ktap_udata {
-	struct {
-		CommonHeader;
-		size_t len;  /* number of bytes */
-	} uv;
-} ktap_udata;
-
-/*
- * Description of an upvalue for function prototypes
- */
-typedef struct ktap_upvaldesc {
-	ktap_string *name;  /* upvalue name (for debug information) */
-	u8 instack;  /* whether it is in stack */
-	u8 idx;  /* index of upvalue (in stack or in outer function's list) */
-} ktap_upvaldesc;
-
-/*
- * Description of a local variable for function prototypes
- * (used for debug information)
- */
-typedef struct ktap_locvar {
-	ktap_string *varname;
-	int startpc;  /* first point where variable is active */
-	int endpc;    /* first point where variable is dead */
-} ktap_locvar;
-
-
-typedef struct ktap_upval {
-	CommonHeader;
-	ktap_value *v;  /* points to stack or to its own value */
-	union {
-		ktap_value value;  /* the value (when closed) */
-		struct {  /* double linked list (when open) */
-			struct ktap_upval *prev;
-			struct ktap_upval *next;
-		} l;
-	} u;
-} ktap_upval;
-
-
-#define KTAP_STACK_MAX_ENTRIES 10
-
-typedef struct ktap_btrace {
-	CommonHeader;
-	unsigned int nr_entries;
-	unsigned long entries[KTAP_STACK_MAX_ENTRIES];
-} ktap_btrace;
-
-#define ktap_closure_header \
-	CommonHeader; u8 nupvalues; ktap_gcobject *gclist
-
-typedef struct ktap_cclosure {
-	ktap_closure_header;
-	ktap_cfunction f;
-	ktap_value upvalue[1];  /* list of upvalues */
-} ktap_cclosure;
-
-
-typedef struct ktap_lclosure {
-	ktap_closure_header;
-	struct ktap_proto *p;
-	struct ktap_upval *upvals[1];  /* list of upvalues */
-} ktap_lclosure;
-
-
-typedef struct ktap_closure {
-	struct ktap_cclosure c;
-	struct ktap_lclosure l;
-} ktap_closure;
-
-
-typedef struct ktap_proto {
-	CommonHeader;
-	ktap_value *k;  /* constants used by the function */
-	ktap_instruction *code;
-	struct ktap_proto **p;  /* functions defined inside the function */
-	int *lineinfo;  /* map from opcodes to source lines (debug information) */
-	struct ktap_locvar *locvars;  /* information about local variables (debug information) */
-	struct ktap_upvaldesc *upvalues;  /* upvalue information */
-	ktap_closure *cache;  /* last created closure with this prototype */
-	ktap_string  *source;  /* used for debug information */
-	int sizeupvalues;  /* size of 'upvalues' */
-	int sizek;  /* size of `k' */
-	int sizecode;
-	int sizelineinfo;
-	int sizep;  /* size of `p' */
-	int sizelocvars;
-	int linedefined;
-	int lastlinedefined;
-	u8 numparams;  /* number of fixed parameters */
-	u8 is_vararg;
-	u8 maxstacksize;  /* maximum stack used by this function */
-} ktap_proto;
-
-
-/*
- * information about a call
- */
-typedef struct ktap_callinfo {
-	StkId func;  /* function index in the stack */
-	StkId top;  /* top for this function */
-	struct ktap_callinfo *prev, *next;  /* dynamic call link */
-	short nresults;  /* expected number of results from this function */
-	u8 callstatus;
-	int extra;
-	union {
-		struct {  /* only for Lua functions */
-			StkId base;  /* base for this function */
-			const unsigned int *savedpc;
-		} l;
-		struct {  /* only for C functions */
-			int ctx;  /* context info. in case of yields */
-			u8 status;
-		} c;
-	} u;
-} ktap_callinfo;
-
-
-/*
- * ktap_tables
- */
-typedef union ktap_tkey {
-	struct {
-		union _ktap_value value_;
-		int tt_;
-		struct ktap_tnode *next;  /* for chaining */
-	} nk;
-	ktap_value tvk;
-} ktap_tkey;
-
-
-typedef struct ktap_tnode {
-	ktap_value i_val;
-	ktap_tkey i_key;
-} ktap_tnode;
-
-
-typedef struct ktap_table {
-	CommonHeader;
-#ifdef __KERNEL__
-	arch_spinlock_t lock;
-#endif
-	u8 flags;  /* 1<<p means tagmethod(p) is not present */
-	u8 lsizenode;  /* log2 of size of `node' array */
-	int sizearray;  /* size of `array' array */
-	ktap_value *array;  /* array part */
-	ktap_tnode *node;
-	ktap_tnode *lastfree;  /* any free position is before this position */
-	ktap_gcobject *gclist;
-} ktap_table;
-
-#define lmod(s,size)	((int)((s) & ((size)-1)))
-
-enum AGGREGATION_TYPE {
-	AGGREGATION_TYPE_COUNT,
-	AGGREGATION_TYPE_MAX,
-	AGGREGATION_TYPE_MIN,
-	AGGREGATION_TYPE_SUM,
-	AGGREGATION_TYPE_AVG
-};
-
-typedef struct ktap_aggrtable {
-	CommonHeader;
-	ktap_table **pcpu_tbl;
-	ktap_gcobject *gclist;
-} ktap_aggrtable;
-
-typedef struct ktap_aggraccval {
-	CommonHeader;
-	int type;
-	int val;
-	int more;
-} ktap_aggraccval;
-
-typedef struct ktap_stringtable {
-	ktap_gcobject **hash;
-	int nuse;
-	int size;
-} ktap_stringtable;
-
-typedef struct ktap_global_state {
-	ktap_stringtable strt;  /* hash table for strings */
-	ktap_value registry;
-	unsigned int seed; /* randonized seed for hashes */
-	u8 gcstate; /* state of garbage collector */
-	u8 gckind; /* kind of GC running */
-	u8 gcrunning; /* true if GC is running */
-
-	ktap_gcobject *allgc; /* list of all collectable objects */
-
-	ktap_upval uvhead; /* head of double-linked list of all open upvalues */
-
-	struct ktap_state *mainthread;
-#ifdef __KERNEL__
-	ktap_parm *parm;
-	pid_t trace_pid;
-	struct task_struct *trace_task;
-	cpumask_var_t cpumask;
-	struct ring_buffer *buffer;
-	struct dentry *trace_pipe_dentry;
-	int nr_builtin_cfunction;
-	ktap_value *cfunction_tbl;
-	struct task_struct *task;
-	int trace_enabled;
-	struct list_head timers;
-	struct list_head probe_events_head;
-	int exit;
-	int wait_user;
-	ktap_closure *trace_end_closure;
-#endif
-	int error;
-} ktap_global_state;
-
-typedef struct ktap_state {
-	CommonHeader;
-	u8 status;
-	ktap_global_state *g;
-	int stop;
-	StkId top;
-	ktap_callinfo *ci;
-	const unsigned long *oldpc;
-	StkId stack_last;
-	StkId stack;
-	int stacksize;
-	ktap_gcobject *openupval;
-	ktap_callinfo baseci;
-
-	int debug;
-	int version;
-	int gcrunning;
-
-	/* list of temp collectable objects, free when thread exit */
-	ktap_gcobject *gclist;
-
-#ifdef __KERNEL__
-	struct ktap_event *current_event;
-	int aggr_accval; /* for temp value storage */
-#endif
-} ktap_state;
-
-
-typedef struct gcheader {
-	CommonHeader;
-} gcheader;
-
-/*
- * Union of all collectable objects
- */
-union ktap_gcobject {
-	gcheader gch;  /* common header */
-	union ktap_string ts;
-	union ktap_udata u;
-	struct ktap_closure cl;
-	struct ktap_table h;
-	struct ktap_aggrtable ah;
-	struct ktap_aggraccval acc;
-	struct ktap_proto p;
-	struct ktap_upval uv;
-	struct ktap_state th;  /* thread */
- 	struct ktap_btrace bt;  /* thread */
-};
-
-#define gch(o)	(&(o)->gch)
-/* macros to convert a GCObject into a specific value */
-#define rawgco2ts(o)	(&((o)->ts))
-#define gco2ts(o)       (&rawgco2ts(o)->tsv)
-
-#define gco2uv(o)	(&((o)->uv))
-
-#define obj2gco(v)	((ktap_gcobject *)(v))
-
-
-#ifdef __KERNEL__
-#define ktap_assert(s)
-#else
-#define ktap_assert(s)
-#if 0
-#define ktap_assert(s)	\
-	do {	\
-		if (!s) {	\
-			printf("assert failed %s, %d\n", __func__, __LINE__);\
-			exit(0);	\
-		}	\
-	} while(0)
-#endif
-#endif
-
-#define check_exp(c,e)                (e)
-
-
-typedef int ktap_number;
-
-
-#define ktap_number2int(i,n)   ((i)=(int)(n))
-
-
-/* predefined values in the registry */
-#define KTAP_RIDX_MAINTHREAD     1
-#define KTAP_RIDX_GLOBALS        2
-#define KTAP_RIDX_LAST           KTAP_RIDX_GLOBALS
-
-
-#define KTAP_TNONE		(-1)
-
-#define KTAP_TNIL		0
-#define KTAP_TBOOLEAN		1
-#define KTAP_TLIGHTUSERDATA	2
-#define KTAP_TNUMBER		3
-#define KTAP_TSTRING		4
-#define KTAP_TSHRSTR		(KTAP_TSTRING | (0 << 4))  /* short strings */
-#define KTAP_TLNGSTR		(KTAP_TSTRING | (1 << 4))  /* long strings */
-#define KTAP_TTABLE		5
-#define KTAP_TFUNCTION		6
-#define KTAP_TLCL		(KTAP_TFUNCTION | (0 << 4))  /* closure */
-#define KTAP_TLCF		(KTAP_TFUNCTION | (1 << 4))  /* light C function */
-#define KTAP_TCCL		(KTAP_TFUNCTION | (2 << 4))  /* C closure */
-#define KTAP_TUSERDATA		7
-#define KTAP_TTHREAD		8
-
-#define KTAP_NUMTAGS		9
-
-#define KTAP_TPROTO		11
-#define KTAP_TUPVAL		12
-
-#define KTAP_TEVENT		13
-
-#define KTAP_TBTRACE		14
-
-#define KTAP_TAGGRTABLE		15
-#define KTAP_TAGGRACCVAL	16
-#define KTAP_TAGGRVAL		17
-
-#define ttype(o)	((o->type) & 0x3F)
-#define settype(obj, t)	((obj)->type = (t))
-
-
-
-/* raw type tag of a TValue */
-#define rttype(o)       ((o)->type)
-
-/* tag with no variants (bits 0-3) */
-#define novariant(x)    ((x) & 0x0F)
-
-/* type tag of a TValue with no variants (bits 0-3) */
-#define ttypenv(o)      (novariant(rttype(o)))
-
-#define val_(o)		((o)->val)
-
-#define bvalue(o)	(val_(o).b)
-#define nvalue(o)	(val_(o).n)
-#define hvalue(o)	(&val_(o).gc->h)
-#define ahvalue(o)	(&val_(o).gc->ah)
-#define aggraccvalue(o)	(&val_(o).gc->acc)
-#define CLVALUE(o)	(&val_(o).gc->cl.l)
-#define clcvalue(o)	(&val_(o).gc->cl.c)
-#define clvalue(o)	(&val_(o).gc->cl)
-#define rawtsvalue(o)	(&val_(o).gc->ts)
-#define pvalue(o)	(&val_(o).p)
-#define fvalue(o)	(val_(o).f)
-#define rawuvalue(o)	(&val_(o).gc->u)
-#define uvalue(o)	(&rawuvalue(o)->uv)
-#define evalue(o)	(val_(o).p)
-#define btvalue(o)	(&val_(o).gc->bt)
-
-#define gcvalue(o)	(val_(o).gc)
-
-#define isnil(o)	(o->type == KTAP_TNIL)
-#define isboolean(o)	(o->type == KTAP_TBOOLEAN)
-#define isfalse(o)	(isnil(o) || (isboolean(o) && bvalue(o) == 0))
-
-#define ttisshrstring(o)	((o)->type == KTAP_TSHRSTR)
-#define ttisstring(o)		(((o)->type & 0x0F) == KTAP_TSTRING)
-#define ttisnumber(o)		((o)->type == KTAP_TNUMBER)
-#define ttisfunc(o)		((o)->type == KTAP_TFUNCTION)
-#define ttistable(o)		((o)->type == KTAP_TTABLE)
-#define ttisaggrtable(o)	((o)->type == KTAP_TAGGRTABLE)
-#define ttisaggrval(o)		((o)->type == KTAP_TAGGRVAL)
-#define ttisaggracc(o)		((o)->type == KTAP_TAGGRACCVAL)
-#define ttisnil(o)		((o)->type == KTAP_TNIL)
-#define ttisboolean(o)		((o)->type == KTAP_TBOOLEAN)
-#define ttisequal(o1,o2)        ((o1)->type == (o2)->type)
-#define ttisevent(o)		((o)->type == KTAP_TEVENT)
-#define ttisbtrace(o)		((o)->type == KTAP_TBTRACE)
-
-#define ttisclone(o)		ttisbtrace(o)
-
-
-#define setnilvalue(obj) \
-	{ ktap_value *io = (obj); io->val.n = 0; settype(io, KTAP_TNIL); }
-
-#define setbvalue(obj, x) \
-	{ ktap_value *io = (obj); io->val.b = (x); settype(io, KTAP_TBOOLEAN); }
-
-#define setnvalue(obj, x) \
-	{ ktap_value *io = (obj); io->val.n = (x); settype(io, KTAP_TNUMBER); }
-
-#define setaggrvalue(obj, x) \
-	{ ktap_value *io = (obj); io->val.n = (x); settype(io, KTAP_TAGGRVAL); }
-
-#define setaggraccvalue(obj,x) \
-	{ ktap_value *io=(obj); \
-	  val_(io).gc = (ktap_gcobject *)(x); settype(io, KTAP_TAGGRACCVAL); }
-
-#define setsvalue(obj, x) \
-	{ ktap_value *io = (obj); \
-	  ktap_string *x_ = (x); \
-	  io->val.gc = (ktap_gcobject *)x_; settype(io, x_->tsv.tt); }
-
-#define setcllvalue(obj, x) \
-	{ ktap_value *io = (obj); \
-	  io->val.gc = (ktap_gcobject *)x; settype(io, KTAP_TLCL); }
-
-#define sethvalue(obj,x) \
-	{ ktap_value *io=(obj); \
-	  val_(io).gc = (ktap_gcobject *)(x); settype(io, KTAP_TTABLE); }
-
-#define setahvalue(obj,x) \
-	{ ktap_value *io=(obj); \
-	  val_(io).gc = (ktap_gcobject *)(x); settype(io, KTAP_TAGGRTABLE); }
-
-#define setfvalue(obj,x) \
-	{ ktap_value *io=(obj); val_(io).f=(x); settype(io, KTAP_TLCF); }
-
-#define setthvalue(L,obj,x) \
-	{ ktap_value *io=(obj); \
-	  val_(io).gc = (ktap_gcobject *)(x); settype(io, KTAP_TTHREAD); }
-
-#define setevalue(obj, x) \
-	{ ktap_value *io=(obj); val_(io).p = (x); settype(io, KTAP_TEVENT); }
-
-#define setbtvalue(obj,x) \
-	{ ktap_value *io=(obj); \
-	  val_(io).gc = (ktap_gcobject *)(x); settype(io, KTAP_TBTRACE); }
-
-#define setobj(obj1,obj2) \
-        { const ktap_value *io2=(obj2); ktap_value *io1=(obj1); \
-          io1->val = io2->val; io1->type = io2->type; }
-
-#define rawequalobj(t1, t2) \
-	(ttisequal(t1, t2) && kp_equalobjv(NULL, t1, t2))
-
-#define equalobj(ks, t1, t2) rawequalobj(t1, t2)
-
-#define incr_top(ks) {ks->top++;}
-
-#define NUMADD(a, b)    ((a) + (b))
-#define NUMSUB(a, b)    ((a) - (b))
-#define NUMMUL(a, b)    ((a) * (b))
-#define NUMDIV(a, b)    ((a) / (b))
-#define NUMUNM(a)       (-(a))
-#define NUMEQ(a, b)     ((a) == (b))
-#define NUMLT(a, b)     ((a) < (b))
-#define NUMLE(a, b)     ((a) <= (b))
-#define NUMISNAN(a)     (!NUMEQ((a), (a)))
-
-/* todo: floor and pow in kernel */
-#define NUMMOD(a, b)    ((a) % (b))
-#define NUMPOW(a, b)    (pow(a, b))
-
-
-ktap_string *kp_tstring_newlstr(ktap_state *ks, const char *str, size_t l);
-ktap_string *kp_tstring_newlstr_local(ktap_state *ks, const char *str, size_t l);
-ktap_string *kp_tstring_new(ktap_state *ks, const char *str);
-ktap_string *kp_tstring_new_local(ktap_state *ks, const char *str);
-int kp_tstring_eqstr(ktap_string *a, ktap_string *b);
-unsigned int kp_string_hash(const char *str, size_t l, unsigned int seed);
-int kp_tstring_eqlngstr(ktap_string *a, ktap_string *b);
-int kp_tstring_cmp(const ktap_string *ls, const ktap_string *rs);
-void kp_tstring_resize(ktap_state *ks, int newsize);
-void kp_tstring_freeall(ktap_state *ks);
-
-ktap_value *kp_table_set(ktap_state *ks, ktap_table *t, const ktap_value *key);
-ktap_table *kp_table_new(ktap_state *ks);
-const ktap_value *kp_table_getint(ktap_table *t, int key);
-void kp_table_setint(ktap_state *ks, ktap_table *t, int key, ktap_value *v);
-const ktap_value *kp_table_get(ktap_table *t, const ktap_value *key);
-void kp_table_setvalue(ktap_state *ks, ktap_table *t, const ktap_value *key, ktap_value *val);
-void kp_table_resize(ktap_state *ks, ktap_table *t, int nasize, int nhsize);
-void kp_table_resizearray(ktap_state *ks, ktap_table *t, int nasize);
-void kp_table_free(ktap_state *ks, ktap_table *t);
-int kp_table_length(ktap_state *ks, ktap_table *t);
-void kp_table_dump(ktap_state *ks, ktap_table *t);
-void kp_table_clear(ktap_state *ks, ktap_table *t);
-void kp_table_histogram(ktap_state *ks, ktap_table *t);
-int kp_table_next(ktap_state *ks, ktap_table *t, StkId key);
-void kp_table_atomic_inc(ktap_state *ks, ktap_table *t, ktap_value *key, int n);
-void kp_aggraccval_dump(ktap_state *ks, ktap_aggraccval *acc);
-ktap_aggrtable *kp_aggrtable_new(ktap_state *ks);
-ktap_table *kp_aggrtable_synthesis(ktap_state *ks, ktap_aggrtable *ah);
-void kp_aggrtable_dump(ktap_state *ks, ktap_aggrtable *ah);
-void kp_aggrtable_free(ktap_state *ks, ktap_aggrtable *ah);
-void kp_aggrtable_set(ktap_state *ks, ktap_aggrtable *ah,
-			ktap_value *key, ktap_value *val);
-void kp_aggrtable_get(ktap_state *ks, ktap_aggrtable *ah,
-			ktap_value *key, ktap_value *val);
-void kp_aggrtable_histogram(ktap_state *ks, ktap_aggrtable *ah);
-void kp_obj_dump(ktap_state *ks, const ktap_value *v);
-void kp_showobj(ktap_state *ks, const ktap_value *v);
-int kp_objlen(ktap_state *ks, const ktap_value *rb);
-void kp_objclone(ktap_state *ks, const ktap_value *o, ktap_value *newo,
-		 ktap_gcobject **list);
-ktap_gcobject *kp_newobject(ktap_state *ks, int type, size_t size, ktap_gcobject **list);
-int kp_equalobjv(ktap_state *ks, const ktap_value *t1, const ktap_value *t2);
-ktap_closure *kp_newlclosure(ktap_state *ks, int n);
-ktap_proto *kp_newproto(ktap_state *ks);
-ktap_upval *kp_newupval(ktap_state *ks);
-void kp_free_gclist(ktap_state *ks, ktap_gcobject *o);
-void kp_free_all_gcobject(ktap_state *ks);
-void kp_header(u8 *h);
-
-int kp_str2d(const char *s, size_t len, ktap_number *result);
-
-#define kp_realloc(ks, v, osize, nsize, t) \
-	((v) = (t *)kp_reallocv(ks, v, osize * sizeof(t), nsize * sizeof(t)))
-
-#define kp_error(ks, args...) \
-	do { \
-		kp_printf(ks, "error: "args);	\
-		G(ks)->error = 1; \
-		kp_exit(ks);	\
-	} while(0)
-
-#ifdef __KERNEL__
-#define G(ks)   (ks->g)
-
-void *kp_malloc(ktap_state *ks, int size);
-void kp_free(ktap_state *ks, void *addr);
-void *kp_reallocv(ktap_state *ks, void *addr, int oldsize, int newsize);
-void *kp_zalloc(ktap_state *ks, int size);
-
-void kp_printf(ktap_state *ks, const char *fmt, ...);
-extern void __kp_puts(ktap_state *ks, const char *str);
-extern void __kp_bputs(ktap_state *ks, const char *str);
-
-#define kp_puts(ks, str) ({						\
-	static const char *trace_printk_fmt				\
-		__attribute__((section("__trace_printk_fmt"))) =	\
-		__builtin_constant_p(str) ? str : NULL;			\
-									\
-	if (__builtin_constant_p(str))					\
-		__kp_bputs(ks, trace_printk_fmt);		\
-	else								\
-		__kp_puts(ks, str);		\
-})
-
-#else
-/*
- * this is used for ktapc tstring operation, tstring need G(ks)->strt
- * and G(ks)->seed, so ktapc need to init those field
- */
-#define G(ks)   (&dummy_global_state)
-extern ktap_global_state dummy_global_state;
-
-#define kp_malloc(ks, size)			malloc(size)
-#define kp_free(ks, block)			free(block)
-#define kp_reallocv(ks, block, osize, nsize)	realloc(block, nsize)
-#define kp_printf(ks, args...)			printf(args)
-#define kp_puts(ks, str)			printf("%s", str)
-#define kp_exit(ks)				exit(EXIT_FAILURE)
-#endif
-
-#define __maybe_unused	__attribute__((unused))
-
-/*
- * KTAP_QL describes how error messages quote program elements.
- * CHANGE it if you want a different appearance.
- */
-#define KTAP_QL(x)      "'" x "'"
-#define KTAP_QS         KTAP_QL("%s")
-
-#endif /* __KTAP_TYPES_H__ */
-
diff --git a/drivers/staging/ktap/interpreter/ktap.c b/drivers/staging/ktap/interpreter/ktap.c
deleted file mode 100644
index 18d8fc8ec63d..000000000000
--- a/drivers/staging/ktap/interpreter/ktap.c
+++ /dev/null
@@ -1,235 +0,0 @@
-/*
- * ktap.c - ktapvm kernel module main entry
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-/*
- * this file is the first file to be compile, add CONFIG_ checking in here.
- * See Requirements in doc/introduction.txt
- */
-
-#include <linux/version.h>
-#if LINUX_VERSION_CODE < KERNEL_VERSION(3, 1, 0)
-#error "Currently ktap don't support kernel older than 3.1"
-#endif
-
-#if !CONFIG_EVENT_TRACING
-#error "Please enable CONFIG_EVENT_TRACING before compile ktap"
-#endif
-
-#if !CONFIG_PERF_EVENTS
-#error "Please enable CONFIG_PERF_EVENTS before compile ktap"
-#endif
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/file.h>
-#include <linux/fcntl.h>
-#include <linux/sched.h>
-#include <linux/poll.h>
-#include <linux/anon_inodes.h>
-#include <linux/debugfs.h>
-#include <linux/vmalloc.h>
-#include "../include/ktap.h"
-
-static int load_trunk(struct ktap_parm *parm, unsigned long **buff)
-{
-	int ret;
-	unsigned long *vmstart;
-
-	vmstart = vmalloc(parm->trunk_len);
-	if (!vmstart)
-		return -ENOMEM;
-
-	ret = copy_from_user(vmstart, (void __user *)parm->trunk,
-			     parm->trunk_len);
-	if (ret < 0) {
-		vfree(vmstart);
-		return -EFAULT;
-	}
-
-	*buff = vmstart;
-	return 0;
-}
-
-int gettimeofday_us(void)
-{
-	struct timeval tv;
-
-	do_gettimeofday(&tv);
-	return tv.tv_sec * USEC_PER_SEC + tv.tv_usec;
-}
-
-struct dentry *kp_dir_dentry;
-static atomic_t kp_is_running = ATOMIC_INIT(0);
-
-/* Ktap Main Entry */
-static int ktap_main(struct file *file, ktap_parm *parm)
-{
-	unsigned long *buff = NULL;
-	ktap_state *ks;
-	ktap_closure *cl;
-	int start_time, delta_time;
-	int ret;
-
-	if (atomic_inc_return(&kp_is_running) != 1) {
-		atomic_dec(&kp_is_running);
-		pr_info("only one ktap thread allow to run\n");
-		return -EBUSY;
-	}
-
-	start_time = gettimeofday_us();
-
-	ks = kp_newstate(parm, kp_dir_dentry);
-	if (unlikely(!ks)) {
-		ret = -ENOEXEC;
-		goto out;
-	}
-
-	file->private_data = ks;
-
-	ret = load_trunk(parm, &buff);
-	if (ret) {
-		pr_err("cannot load file\n");
-		goto out;
-	}
-
-	cl = kp_load(ks, (unsigned char *)buff);
-
-	vfree(buff);
-
-	if (cl) {
-		/* optimize bytecode before excuting */
-		kp_optimize_code(ks, 0, cl->l.p);
-
-		delta_time = gettimeofday_us() - start_time;
-		kp_verbose_printf(ks, "booting time: %d (us)\n", delta_time);
-		kp_call(ks, ks->top - 1, 0);
-	}
-
-	kp_final_exit(ks);
-
- out:
-	atomic_dec(&kp_is_running);	
-	return ret;
-}
-
-
-static void print_version(void)
-{
-}
-
-static long ktap_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
-	ktap_parm parm;
-	int ret;
-
-	switch (cmd) {
-	case KTAP_CMD_IOC_VERSION:
-		print_version();
-		return 0;
-	case KTAP_CMD_IOC_RUN:
-		ret = copy_from_user(&parm, (void __user *)arg,
-				     sizeof(ktap_parm));
-		if (ret < 0)
-			return -EFAULT;
-
-		return ktap_main(file, &parm);
-	default:
-		return -EINVAL;
-	};
-
-        return 0;
-}
-
-static const struct file_operations ktap_fops = {
-	.llseek                 = no_llseek,
-	.unlocked_ioctl         = ktap_ioctl,
-};
-
-static long ktapvm_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
-	int new_fd, err;
-	struct file *new_file;
-
-	new_fd = get_unused_fd();
-	if (new_fd < 0)
-		return new_fd;
-
-	new_file = anon_inode_getfile("[ktap]", &ktap_fops, NULL, O_RDWR);
-	if (IS_ERR(new_file)) {
-		err = PTR_ERR(new_file);
-		put_unused_fd(new_fd);
-		return err;
-	}
-
-	file->private_data = NULL;
-	fd_install(new_fd, new_file);
-	return new_fd;
-}
-
-static const struct file_operations ktapvm_fops = {
-	.owner  = THIS_MODULE,
-	.unlocked_ioctl         = ktapvm_ioctl,
-};
-
-unsigned int kp_stub_exit_instr;
-
-static int __init init_ktap(void)
-{
-	struct dentry *ktapvm_dentry;
-
-	kp_dir_dentry = debugfs_create_dir("ktap", NULL);
-	if (!kp_dir_dentry) {
-		pr_err("ktap: debugfs_create_dir failed\n");
-		return -1;
-	}
-
-	ktapvm_dentry = debugfs_create_file("ktapvm", 0444, kp_dir_dentry, NULL,
-					    &ktapvm_fops);
-
-	if (!ktapvm_dentry) {
-		pr_err("ktapvm: cannot create ktapvm file\n");
-		debugfs_remove_recursive(kp_dir_dentry);
-		return -1;
-	}
-
-	SET_OPCODE(kp_stub_exit_instr, OP_EXIT);
-
-	return 0;
-}
-
-static void __exit exit_ktap(void)
-{
-	debugfs_remove_recursive(kp_dir_dentry);
-}
-
-module_init(init_ktap);
-module_exit(exit_ktap);
-
-MODULE_AUTHOR("Jovi Zhangwei <jovi.zhangwei@gmail.com>");
-MODULE_DESCRIPTION("ktap");
-MODULE_LICENSE("GPL");
-
-int kp_max_exec_count = 10000;
-module_param_named(max_exec_count, kp_max_exec_count, int, S_IRUGO | S_IWUSR);
-MODULE_PARM_DESC(max_exec_count, "non-mainthread max instruction execution count");
-
diff --git a/drivers/staging/ktap/interpreter/library/ansilib.c b/drivers/staging/ktap/interpreter/library/ansilib.c
deleted file mode 100644
index d058373e5f30..000000000000
--- a/drivers/staging/ktap/interpreter/library/ansilib.c
+++ /dev/null
@@ -1,153 +0,0 @@
-/*
- * ansilib.c - ANSI escape sequences library
- *
- * http://en.wikipedia.org/wiki/ANSI_escape_code
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "../../include/ktap.h"
-
-/**
- * function ansi.clear_screen - Move cursor to top left and clear screen.
- *
- * Description: Sends ansi code for moving cursor to top left and then the
- * ansi code for clearing the screen from the cursor position to the end.
- */
-
-static int ktap_lib_clear_screen(ktap_state *ks)
-{
-	kp_printf(ks, "\033[1;1H\033[J");
-	return 0;
-}
-
-/**
- * function ansi.set_color - Set the ansi Select Graphic Rendition mode.
- * @fg: Foreground color to set.
- *
- * Description: Sends ansi code for Select Graphic Rendition mode for the
- * given forground color. Black (30), Blue (34), Green (32), Cyan (36),
- * Red (31), Purple (35), Brown (33), Light Gray (37).
- */
-
-static int ktap_lib_set_color(ktap_state *ks)
-{
-	int fg;
-
-	kp_arg_check(ks, 1, KTAP_TNUMBER);
-
-	fg = nvalue(kp_arg(ks, 1));
-	kp_printf(ks, "\033[%dm", fg);
-	return 0;
-}
-
-/**
- * function ansi.set_color2 - Set the ansi Select Graphic Rendition mode.
- * @fg: Foreground color to set.
- * @bg: Background color to set.
- *
- * Description: Sends ansi code for Select Graphic Rendition mode for the
- * given forground color, Black (30), Blue (34), Green (32), Cyan (36),
- * Red (31), Purple (35), Brown (33), Light Gray (37) and the given
- * background color, Black (40), Red (41), Green (42), Yellow (43),
- * Blue (44), Magenta (45), Cyan (46), White (47).
- */
-static int ktap_lib_set_color2(ktap_state *ks)
-{
-	int fg, bg;
-	
-	kp_arg_check(ks, 1, KTAP_TNUMBER);
-	kp_arg_check(ks, 2, KTAP_TNUMBER);
-
-	fg = nvalue(kp_arg(ks, 1));
-	bg = nvalue(kp_arg(ks, 2));
-	kp_printf(ks, "\033[%d;%dm", fg, bg);
-	return 0;
-}
-
-/**
- * function ansi.set_color3 - Set the ansi Select Graphic Rendition mode.
- * @fg: Foreground color to set.
- * @bg: Background color to set.
- * @attr: Color attribute to set.
- *
- * Description: Sends ansi code for Select Graphic Rendition mode for the
- * given forground color, Black (30), Blue (34), Green (32), Cyan (36),
- * Red (31), Purple (35), Brown (33), Light Gray (37), the given
- * background color, Black (40), Red (41), Green (42), Yellow (43),
- * Blue (44), Magenta (45), Cyan (46), White (47) and the color attribute
- * All attributes off (0), Intensity Bold (1), Underline Single (4),
- * Blink Slow (5), Blink Rapid (6), Image Negative (7).
- */
-static int ktap_lib_set_color3(ktap_state *ks)
-{
-	int fg, bg, attr;
-
-	kp_arg_check(ks, 1, KTAP_TNUMBER);
-	kp_arg_check(ks, 2, KTAP_TNUMBER);
-	kp_arg_check(ks, 3, KTAP_TNUMBER);
-
-	fg = nvalue(kp_arg(ks, 1));
-	bg = nvalue(kp_arg(ks, 2));
-	attr = nvalue(kp_arg(ks, 3));
-
-	if (attr)
-		kp_printf(ks, "\033[%d;%d;%dm", fg, bg, attr);
-	else
-		kp_printf(ks, "\033[%d;%dm", fg, bg);
-	
-	return 0;
-}
-
-/**
- * function ansi.reset_color - Resets Select Graphic Rendition mode.
- *
- * Description: Sends ansi code to reset foreground, background and color
- * attribute to default values.
- */
-static int ktap_lib_reset_color(ktap_state *ks)
-{
-	kp_printf(ks, "\033[0;0m");
-	return 0;
-}
-
-/**
- * function ansi.new_line - Move cursor to new line.
- *
- * Description: Sends ansi code new line.
- */
-static int ktap_lib_new_line (ktap_state *ks)
-{
-	kp_printf(ks, "\12");
-	return 0;
-}
-
-static const ktap_Reg ansi_funcs[] = {
-	{"clear_screen", ktap_lib_clear_screen},
-	{"set_color", ktap_lib_set_color},
-	{"set_color2", ktap_lib_set_color2},
-	{"set_color3", ktap_lib_set_color3},
-	{"reset_color", ktap_lib_reset_color},
-	{"new_line", ktap_lib_new_line},
-	{NULL}
-};
-
-void kp_init_ansilib(ktap_state *ks)
-{
-	kp_register_lib(ks, "ansi", ansi_funcs); 
-}
diff --git a/drivers/staging/ktap/interpreter/library/baselib.c b/drivers/staging/ktap/interpreter/library/baselib.c
deleted file mode 100644
index 4bcdc620f9d9..000000000000
--- a/drivers/staging/ktap/interpreter/library/baselib.c
+++ /dev/null
@@ -1,455 +0,0 @@
-/*
- * baselib.c - ktapvm kernel module base library
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <linux/hardirq.h>
-#include <linux/kallsyms.h>
-#include <linux/sched.h>
-#include <linux/uaccess.h>
-#include <linux/utsname.h>
-#include <linux/time.h>
-#include <linux/clocksource.h>
-#include <linux/ring_buffer.h>
-#include <linux/stacktrace.h>
-#include "../../include/ktap.h"
-
-static int ktap_lib_next(ktap_state *ks)
-{
-	ktap_table *t = hvalue(ks->top - 2);
-
-	if (kp_table_next(ks, t, ks->top-1)) {
-		ks->top += 1;
-		return 2;
-	} else {
-		ks->top -= 1;
-		setnilvalue(ks->top++);
-		return 1;
-	}
-}
-
-static int ktap_lib_pairs(ktap_state *ks)
-{
-	ktap_value *v = kp_arg(ks, 1);
-	ktap_table *t;
-
-	if (G(ks)->mainthread != ks) {
-		kp_error(ks, "only mainthread can call table pairs\n");
-		return -1;
-	}
-
-	if (ttistable(v)) {
-		t = hvalue(v);
-	} else if (ttisaggrtable(v)) {
-		t = kp_aggrtable_synthesis(ks, ahvalue(v));
-	} else if (isnil(v)) {
-		kp_error(ks, "table is nil in pairs\n");
-		return 0;
-	} else {
-		kp_error(ks, "wrong argument for pairs\n");
-		return 0;
-	}
-
-	setfvalue(ks->top++, ktap_lib_next);
-	sethvalue(ks->top++, t);
-	setnilvalue(ks->top++);
-	return 3;
-}
-
-static int ktap_lib_len(ktap_state *ks)
-{
-	int len = kp_objlen(ks, kp_arg(ks, 1));
-
-	if (len < 0)
-		return -1;
-
-	setnvalue(ks->top, len);
-	incr_top(ks);
-	return 1;
-}
-
-static int ktap_lib_print(ktap_state *ks)
-{
-	int i;
-	int n = kp_arg_nr(ks);
-
-	for (i = 1; i <= n; i++) {
-		ktap_value *arg = kp_arg(ks, i);
-		if (i > 1)
-			kp_puts(ks, "\t");
-		kp_showobj(ks, arg);
-	}
-
-	kp_puts(ks, "\n");
-
-	return 0;
-}
-
-/* don't engage with tstring when printf, use buffer directly */
-static int ktap_lib_printf(ktap_state *ks)
-{
-	struct trace_seq *seq;
-
-	preempt_disable_notrace();
-
-	seq = kp_percpu_data(KTAP_PERCPU_DATA_BUFFER);
-	trace_seq_init(seq);
-
-	if (kp_strfmt(ks, seq))
-		return 0;
-
-	seq->buffer[seq->len] = '\0';
-	kp_transport_write(ks, seq->buffer, seq->len + 1);
-
-	preempt_enable_notrace();
-	return 0;
-}
-
-#ifdef CONFIG_STACKTRACE
-static int ktap_lib_print_backtrace(ktap_state *ks)
-{
-	kp_transport_print_backtrace(ks);
-	return 0;
-}
-#else
-static int ktap_lib_print_backtrace(ktap_state *ks)
-{
-	kp_error(ks, "Please enable CONFIG_STACKTRACE before use "
-		     "ktap print_backtrace\n");
-	return 0;
-}
-#endif
-
-static int ktap_lib_backtrace(ktap_state *ks)
-{
-	struct stack_trace trace;
-	ktap_btrace *bt;
-
-	bt = kp_percpu_data(KTAP_PERCPU_DATA_BTRACE);
-
-	trace.nr_entries = 0;
-	trace.skip = 10;
-	trace.max_entries = KTAP_STACK_MAX_ENTRIES;
-	trace.entries = &bt->entries[0];
-	save_stack_trace(&trace);
-
-	bt->nr_entries = trace.nr_entries;
-	setbtvalue(ks->top, bt);
-	incr_top(ks);
-	return 1;
-}
-
-extern unsigned long long ns2usecs(cycle_t nsec);
-static int ktap_lib_print_trace_clock(ktap_state *ks)
-{
-	unsigned long long t;
-	unsigned long secs, usec_rem;
-	u64 timestamp;
-
-	/* use ring buffer's timestamp */
-	timestamp = ring_buffer_time_stamp(G(ks)->buffer, smp_processor_id());
-
-	t = ns2usecs(timestamp);
-	usec_rem = do_div(t, USEC_PER_SEC);
-	secs = (unsigned long)t;
-
-	kp_printf(ks, "%5lu.%06lu\n", secs, usec_rem);
-
-	return 0;
-}
-
-static int ktap_lib_exit(ktap_state *ks)
-{
-	kp_exit(ks);
-
-	/* do not execute bytecode any more in this thread */
-	return -1;
-}
-
-static int ktap_lib_pid(ktap_state *ks)
-{
-	pid_t pid = task_tgid_vnr(current);
-
-	setnvalue(ks->top, (int)pid);
-	incr_top(ks);
-	return 1;
-}
-
-static int ktap_lib_tid(ktap_state *ks)
-{
-	pid_t pid = task_pid_vnr(current);
-
-	setnvalue(ks->top, (int)pid);
-	incr_top(ks);
-	return 1;
-}
-
-static int ktap_lib_execname(ktap_state *ks)
-{
-	ktap_string *ts = kp_tstring_new(ks, current->comm);
-	setsvalue(ks->top, ts);
-	incr_top(ks);
-	return 1;
-}
-
-static int ktap_lib_cpu(ktap_state *ks)
-{
-	setnvalue(ks->top, smp_processor_id());
-	incr_top(ks);
-	return 1;
-}
-
-static int ktap_lib_num_cpus(ktap_state *ks)
-{
-	setnvalue(ks->top, num_online_cpus());
-	incr_top(ks);
-	return 1;
-}
-
-static int ktap_lib_in_interrupt(ktap_state *ks)
-{
-	int ret = in_interrupt();
-
-	setnvalue(ks->top, ret);
-	incr_top(ks);
-	return 1;
-}
-
-static int ktap_lib_arch(ktap_state *ks)
-{
-	setsvalue(ks->top, kp_tstring_new(ks, utsname()->machine));
-	incr_top(ks);
-	return 1;
-}
-
-static int ktap_lib_kernel_v(ktap_state *ks)
-{
-	setsvalue(ks->top, kp_tstring_new(ks, utsname()->release));
-	incr_top(ks);
-	return 1;
-}
-
-static int ktap_lib_user_string(ktap_state *ks)
-{
-	unsigned long addr;
-	char str[256] = {0};
-	int ret;
-
-	kp_arg_check(ks, 1, KTAP_TNUMBER);
-
-	addr = nvalue(kp_arg(ks, 1));
-
-	pagefault_disable();
-	ret = __copy_from_user_inatomic((void *)str, (const void *)addr, 256);
-	(void) &ret;  /* Silence compiler warning. */
-	pagefault_enable();
-	str[255] = '\0';
-	setsvalue(ks->top, kp_tstring_new(ks, str));
-
-	incr_top(ks);
-	return 1;
-}
-
-static int ktap_lib_histogram(ktap_state *ks)
-{
-	ktap_value *v = kp_arg(ks, 1);
-
-	if (G(ks)->mainthread != ks) {
-		kp_error(ks, "only mainthread can call table historgram\n");
-		return -1;
-	}
-
-	if (ttistable(v))
-		kp_table_histogram(ks, hvalue(v));
-	else if (ttisaggrtable(v))
-		kp_aggrtable_histogram(ks, ahvalue(v));
-
-	return 0;
-}
-
-static int ktap_lib_aggr_table(ktap_state *ks)
-{
-	ktap_aggrtable *ah;
-
-	ah = kp_aggrtable_new(ks);
-	setahvalue(ks->top, ah);
-	incr_top(ks);
-	return 1;
-}
-
-static int ktap_lib_aggr_count(ktap_state *ks)
-{
-	setaggrvalue(ks->top, AGGREGATION_TYPE_COUNT);
-	incr_top(ks);
-	return 1;
-}
-
-static int ktap_lib_aggr_max(ktap_state *ks)
-{
-	kp_arg_check(ks, 1, KTAP_TNUMBER);
-
-	ks->aggr_accval = nvalue(kp_arg(ks, 1));
-	setaggrvalue(ks->top, AGGREGATION_TYPE_MAX);
-	incr_top(ks);
-	return 1;
-}
-
-static int ktap_lib_aggr_min(ktap_state *ks)
-{
-	kp_arg_check(ks, 1, KTAP_TNUMBER);
-
-	ks->aggr_accval = nvalue(kp_arg(ks, 1));
-	setaggrvalue(ks->top, AGGREGATION_TYPE_MIN);
-	incr_top(ks);
-	return 1;
-}
-
-static int ktap_lib_aggr_sum(ktap_state *ks)
-{
-	kp_arg_check(ks, 1, KTAP_TNUMBER);
-
-	ks->aggr_accval = nvalue(kp_arg(ks, 1));
-	setaggrvalue(ks->top, AGGREGATION_TYPE_SUM);
-	incr_top(ks);
-	return 1;
-}
-
-static int ktap_lib_aggr_avg(ktap_state *ks)
-{
-	kp_arg_check(ks, 1, KTAP_TNUMBER);
-
-	ks->aggr_accval = nvalue(kp_arg(ks, 1));
-	setaggrvalue(ks->top, AGGREGATION_TYPE_AVG);
-	incr_top(ks);
-	return 1;
-}
-
-static int ktap_lib_delete(ktap_state *ks)
-{
-	kp_arg_check(ks, 1, KTAP_TTABLE);
-
-	kp_table_clear(ks, hvalue(kp_arg(ks, 1)));
-	return 0;
-}
-
-static int ktap_lib_gettimeofday_us(ktap_state *ks)
-{
-	setnvalue(ks->top, gettimeofday_us());
-	incr_top(ks);
-
-	return 1;
-}
-
-/*
- * use gdb to get field offset of struct task_struct, for example:
- *
- * gdb vmlinux
- * (gdb)p &(((struct task_struct *)0).prio)
- */
-static int ktap_lib_curr_task_info(ktap_state *ks)
-{
-	int offset;
-	int fetch_bytes;
-
-	kp_arg_check(ks, 1, KTAP_TNUMBER);
-
-	offset = nvalue(kp_arg(ks, 1));
-	
-	if (kp_arg_nr(ks) == 1)
-		fetch_bytes = 4; /* default fetch 4 bytes*/
-	else {
-		kp_arg_check(ks, 2, KTAP_TNUMBER);
-		fetch_bytes = nvalue(kp_arg(ks, 2));
-	}
-
-	if (offset >= sizeof(struct task_struct)) {
-		setnilvalue(ks->top++);
-		kp_error(ks, "access out of bound value of task_struct\n");
-		return 1;
-	}
-
-#define RET_VALUE ((unsigned long)current + offset)
-
-	switch (fetch_bytes) {
-	case 4:
-		setnvalue(ks->top, *(unsigned int *)RET_VALUE);
-		break;
-	case 8:
-		setnvalue(ks->top, *(unsigned long *)RET_VALUE);
-		break;
-	default:
-		kp_error(ks, "unsupported fetch bytes in curr_task_info\n");
-		setnilvalue(ks->top);
-		break;
-	}
-
-#undef RET_VALUE
-
-	incr_top(ks);
-	return 1;
-}
-
-/*
- * This built-in function mainly purpose scripts/schedule/schedtimes.kp
- */
-static int ktap_lib_in_iowait(ktap_state *ks)
-{
-	setnvalue(ks->top, current->in_iowait);
-	incr_top(ks);
-
-	return 1;
-}
-
-static const ktap_Reg base_funcs[] = {
-	{"pairs", ktap_lib_pairs},
-	{"len", ktap_lib_len},
-	{"print", ktap_lib_print},
-	{"printf", ktap_lib_printf},
-	{"print_backtrace", ktap_lib_print_backtrace},
-	{"backtrace", ktap_lib_backtrace},
-	{"print_trace_clock", ktap_lib_print_trace_clock},
-	{"in_interrupt", ktap_lib_in_interrupt},
-	{"exit", ktap_lib_exit},
-	{"pid", ktap_lib_pid},
-	{"tid", ktap_lib_tid},
-	{"execname", ktap_lib_execname},
-	{"cpu", ktap_lib_cpu},
-	{"num_cpus", ktap_lib_num_cpus},
-	{"arch", ktap_lib_arch},
-	{"kernel_v", ktap_lib_kernel_v},
-	{"user_string", ktap_lib_user_string},
-	{"histogram", ktap_lib_histogram},
-	{"aggr_table", ktap_lib_aggr_table},
-	{"count", ktap_lib_aggr_count},
-	{"max", ktap_lib_aggr_max},
-	{"min", ktap_lib_aggr_min},
-	{"sum", ktap_lib_aggr_sum},
-	{"avg", ktap_lib_aggr_avg},
-
-	{"delete", ktap_lib_delete},
-	{"gettimeofday_us", ktap_lib_gettimeofday_us},
-	{"curr_taskinfo", ktap_lib_curr_task_info},
-	{"in_iowait", ktap_lib_in_iowait},
-	{NULL}
-};
-
-void kp_init_baselib(ktap_state *ks)
-{
-	kp_register_lib(ks, NULL, base_funcs); 
-}
diff --git a/drivers/staging/ktap/interpreter/library/kdebug.c b/drivers/staging/ktap/interpreter/library/kdebug.c
deleted file mode 100644
index a9477beeaebf..000000000000
--- a/drivers/staging/ktap/interpreter/library/kdebug.c
+++ /dev/null
@@ -1,449 +0,0 @@
-/*
- * kdebug.c - ktap probing core implementation
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <linux/module.h>
-#include <linux/ctype.h>
-#include <linux/version.h>
-#include <linux/ftrace_event.h>
-#include "../../include/ktap.h"
-
-static void ktap_call_probe_closure(ktap_state *mainthread, ktap_closure *cl,
-				    struct ktap_event *e)
-{
-	ktap_state *ks;
-	ktap_value *func;
-
-	ks = kp_newthread(mainthread);
-	setcllvalue(ks->top, cl);
-	func = ks->top;
-	incr_top(ks);
-
-	ks->current_event = e;
-
-	kp_call(ks, func, 0);
-
-	ks->current_event = NULL;
-	kp_exitthread(ks);
-}
-
-void kp_event_tostring(ktap_state *ks, struct trace_seq *seq)
-{
-	struct ktap_event *e = ks->current_event;
-	struct trace_iterator *iter;
-	struct trace_event *ev;
-	enum print_line_t ret = TRACE_TYPE_NO_CONSUME;
-
-	/* Simulate the iterator */
-
-	/*
-	 * use temp percpu buffer as trace_iterator
-	 * we cannot use same temp buffer as printf.
-	 */
-	iter = kp_percpu_data(KTAP_PERCPU_DATA_BUFFER2);
-
-	trace_seq_init(&iter->seq);
-	iter->ent = e->entry;
-
-	ev = &(e->call->event);
-	if (ev)
-		ret = ev->funcs->trace(iter, 0, ev);
-
-	if (ret != TRACE_TYPE_NO_CONSUME) {
-		struct trace_seq *s = &iter->seq;
-		int len = s->len >= PAGE_SIZE ? PAGE_SIZE - 1 : s->len;
-
-		s->buffer[len] = '\0';
-		trace_seq_puts(seq, s->buffer);
-	}
-}
-
-#if 0
-/* check pt_regs defintion in linux/arch/x86/include/asm/ptrace.h */
-/* support other architecture pt_regs showing */
-static void event_regstr(ktap_state *ks, struct ktap_event *e, StkId ra)
-{
-	struct pt_regs *regs = e->regs;
-	char str[256] = {0};
-
-#if defined(CONFIG_X86_32)
-	snprintf(str, sizeof(str),
-		"{ax: 0x%lx, orig_ax: 0x%lx, bx: 0x%lx, cx: 0x%lx, dx: 0x%lx, "
-		"si: 0x%lx, di: 0x%lx, bp: 0x%lx, ds: 0x%lx, es: 0x%lx, fs: 0x%lx, "
-		"gs: 0x%lx, ip: 0x%lx, cs: 0x%lx, flags: 0x%lx, sp: 0x%lx, ss: 0x%lx}\n",
-		regs->ax, regs->orig_ax, regs->bx, regs->cx, regs->dx,
-		regs->si, regs->di, regs->bp, regs->ds, regs->es, regs->fs,
-		regs->gs, regs->ip, regs->cs, regs->flags, regs->sp, regs->ss);
-#elif defined(CONFIG_X86_64)
-	/* x86_64 pt_regs doesn't have ds, es, fs or gs. */
-	snprintf(str, sizeof(str),
-		"{ax: 0x%lx, orig_ax: 0x%lx, bx: 0x%lx, cx: 0x%lx, dx: 0x%lx, "
-		"si: 0x%lx, di: 0x%lx, r8: 0x%lx, r9: 0x%lx, r10: 0x%lx, r11: 0x%lx, "
-		"r12: 0x%lx, r13: 0x%lx, r14: 0x%lx, r15: 0x%lx, bp: 0x%lx, ip: 0x%lx, "
-		"cs: 0x%lx, flags: 0x%lx, sp: 0x%lx, ss: 0x%lx}\n",
-		regs->ax, regs->orig_ax, regs->bx, regs->cx, regs->dx,
-		regs->si, regs->di, regs->r8, regs->r9, regs->r10, regs->r11,
-		regs->r12, regs->r13, regs->r14, regs->r15, regs->bp, regs->ip,
-		regs->cs, regs->flags, regs->sp, regs->ss);
-#endif
-	setsvalue(ra, kp_tstring_new_local(ks, str));
-}
-#endif
-
-/***************************/
-/* This definition should keep update with kernel/trace/trace.h */
-struct ftrace_event_field {
-	struct list_head        link;
-	const char              *name;
-	const char              *type;
-	int                     filter_type;
-	int                     offset;
-	int                     size;
-	int                     is_signed;
-};
-
-static struct list_head *ktap_get_fields(struct ftrace_event_call *event_call)
-{
-	if (!event_call->class->get_fields)
-		return &event_call->class->fields;
-	return event_call->class->get_fields(event_call);
-}
-
-static void get_field_value(ktap_state *ks, struct ktap_event *e,
-			    struct ftrace_event_field *field, ktap_value *ra)
-{
-	void *value = (unsigned char *)e->entry + field->offset;
-
-	if (field->size == 4) {
-		int n = *(int *)value;
-		setnvalue(ra, n);
-		return;
-	} else if (field->size == 8) {
-		long n = *(long *)value;
-		setnvalue(ra, n);
-		return;
-	}
-
-	if (!strncmp(field->type, "char", 4)) {
-		setsvalue(ra, kp_tstring_new(ks, (char *)value));
-		return;
-	}
-}
-
-void kp_event_getarg(ktap_state *ks, ktap_value *ra, int n)
-{
-	struct ktap_event *e = ks->current_event;
-	int index = n;
-	struct ftrace_event_field *field;
-	struct list_head *head;
-
-	/* this is very slow and not safe, fix it in future */
-	head = ktap_get_fields(e->call);
-	list_for_each_entry_reverse(field, head, link) {
-		if (--index == 0) {
-			get_field_value(ks, e, field, ra);
-			return;
-		}
-	}
-
-	setnilvalue(ra);
-	return;
-}
-
-/* Callback function for perf event subsystem
- * make ktap reentrant, don't disable irq in callback function,
- * same as perf and ftrace. to make reentrant, we need some
- * percpu data to be context isolation(irq/sirq/nmi/process)
- *
- * perf callback already consider on the recursion issue,
- * so ktap don't need to check again in here.
- *
- * Note tracepoint handler is calling with rcu_read_lock.
- */
-static void ktap_overflow_callback(struct perf_event *event,
-				   struct perf_sample_data *data,
-				   struct pt_regs *regs)
-{
-	struct ktap_probe_event *ktap_pevent;
-	struct ktap_event e;
-	ktap_state  *ks;
-	int rctx;
-
-	ktap_pevent = event->overflow_handler_context;
-	ks = ktap_pevent->ks;
-
-	if (unlikely(ks->stop))
-		return;
-
-	rctx = get_recursion_context();
-	if (rctx < 0)
-		return;
-
-	/* profile perf event don't have valid associated tp_event */
-	if (event->tp_event) {
-		e.call = event->tp_event;
-		e.entry = data->raw->data;
-		e.entry_size = data->raw->size;
-	}
-	e.pevent = ktap_pevent;
-	e.regs = regs;
-
-	ktap_call_probe_closure(ks, ktap_pevent->cl, &e);
-
-	put_recursion_context(rctx);
-}
-
-static void perf_destructor(struct ktap_probe_event *ktap_pevent)
-{
-	perf_event_release_kernel(ktap_pevent->perf);
-}
-
-static int (*kp_ftrace_profile_set_filter)(struct perf_event *event,
-					   int event_id, char *filter_str);
-
-/*
- * Generic perf event register function
- * used by tracepoints/kprobe/uprobe/profile-timer/hw_breakpoint.
- */
-void kp_perf_event_register(ktap_state *ks, struct perf_event_attr *attr,
-			    struct task_struct *task, char *filter,
-			    ktap_closure *cl)
-{
-	struct ktap_probe_event *ktap_pevent;
-	struct perf_event *event;
-	int cpu, ret;
-
-	kp_verbose_printf(ks, "enable perf event id: %d, filter: %s "
-			      "pid: %d\n", attr->config, filter,
-			      task ? task_tgid_vnr(task) : -1);
-
-	/*
-	 * don't tracing until ktap_wait, the reason is:
-	 * 1). some event may hit before apply filter
-	 * 2). more simple to manage tracing thread
-	 * 3). avoid race with mainthread.
-	 *
-	 * Another way to do this is make attr.disabled as 1, then use
-	 * perf_event_enable after filter apply, however, perf_event_enable
-	 * was not exported in kernel older than 3.3, so we drop this method.
-	 */
-	ks->stop = 1;
-
-	for_each_cpu(cpu, G(ks)->cpumask) {
-		ktap_pevent = kp_zalloc(ks, sizeof(*ktap_pevent));
-		ktap_pevent->ks = ks;
-		ktap_pevent->cl = cl;
-		event = perf_event_create_kernel_counter(attr, cpu, task,
-							 ktap_overflow_callback,
-							 ktap_pevent);
-		if (IS_ERR(event)) {
-			int err = PTR_ERR(event);
-			kp_error(ks, "unable register perf event %d on cpu %d, "
-				     "err: %d\n", attr->config, cpu, err);
-			kp_free(ks, ktap_pevent);
-			return;
-		}
-
-		ktap_pevent->perf = event;
-		INIT_LIST_HEAD(&ktap_pevent->list);
-		list_add_tail(&ktap_pevent->list, &G(ks)->probe_events_head);
-
-		if (!filter)
-			continue;
-
-		ret = kp_ftrace_profile_set_filter(event, attr->config, filter);
-		if (ret) {
-			kp_error(ks, "unable set filter %s for event id %d, "
-				     "ret: %d\n", filter, attr->config, ret);
-			perf_destructor(ktap_pevent);
-			list_del(&ktap_pevent->list);
-			kp_free(ks, ktap_pevent);
-			return;
-		}
-	}
-}
-
-static void end_probes(struct ktap_state *ks)
-{
-	struct ktap_probe_event *ktap_pevent;
-	struct list_head *tmp, *pos;
-	struct list_head *head = &G(ks)->probe_events_head;
-
-	list_for_each(pos, head) {
-		ktap_pevent = container_of(pos, struct ktap_probe_event,
-					   list);
-		perf_destructor(ktap_pevent);
-        }
-       	/*
-	 * Ensure our callback won't be called anymore. The buffers
-	 * will be freed after that.
-	 */
-	tracepoint_synchronize_unregister();
-
-	list_for_each_safe(pos, tmp, head) {
-		ktap_pevent = container_of(pos, struct ktap_probe_event,
-					   list);
-		list_del(&ktap_pevent->list);
-		kp_free(ks, ktap_pevent);
-	}
-}
-
-static int ktap_lib_probe_by_id(ktap_state *ks)
-{
-	const char *ids_str;
-	char *start;
-	ktap_closure *cl;
-	struct task_struct *task = G(ks)->trace_task;
-	char filter_str[128] = {0};
-	char *filter, *ptr1, *sep, *ptr;
-
-	kp_arg_check(ks, 1, KTAP_TSTRING);
-	kp_arg_check(ks, 2, KTAP_TFUNCTION);
-
-	ids_str = svalue(kp_arg(ks, 1));
-	cl = clvalue(kp_arg(ks, 2));
-
-	start = (char *)ids_str;
-
- again:
-	filter = NULL;
-
-	sep = strchr(start, ',');
-	if (!sep)
-		ptr1 = strchr(start, '/');
-	else
-		ptr1 = strnchr(start, sep - start, '/');
-
-	if (ptr1) {
-		char *ptr2 = strrchr(ptr1 + 1, '/');
-
-		if (ptr2) {
-			memset(filter_str, 0, sizeof(filter_str));
-			strncpy(filter_str, ptr1 + 1, ptr2 - ptr1 - 1);
-			filter = &filter_str[0];
-		} else {
-			kp_printf(ks, "cannot parse ids_str: %s\n", ids_str);
-			return -1;
-		}
-	}
-
-	for (ptr = start; *ptr != ',' && *ptr != '\0' && *ptr != '/'; ptr++) {
-		char token[32] = {0};
-		int id;
-		int i = 0;
-
-		if (*ptr == ' ')
-			continue;
-
-		while (isdigit(*ptr)) {
-			token[i++] = *ptr++;
-		}
-
-		if (!kstrtoint(token, 10, &id)) {
-			struct perf_event_attr attr;
-
-			memset(&attr, 0, sizeof(attr));
-			attr.type = PERF_TYPE_TRACEPOINT;	
-			attr.config = id;
-			attr.sample_type = PERF_SAMPLE_RAW | PERF_SAMPLE_TIME |
-					   PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD;
-			attr.sample_period = 1;
-			attr.size = sizeof(attr);
-			attr.disabled = 0;
-
-			kp_perf_event_register(ks, &attr, task, filter, cl);
-		}
-	}
-
-	if (sep && (*(sep + 1) != '\0')) {
-		start = sep + 1;
-		goto again;
-	}
-
-	return 0;
-}
-
-static int ktap_lib_probe_end(ktap_state *ks)
-{
-	kp_arg_check(ks, 1, KTAP_TFUNCTION);
-
-	G(ks)->trace_end_closure = clvalue(kp_arg(ks, 1));
-	return 0;
-}
-
-static int ktap_lib_traceoff(ktap_state *ks)
-{
-	end_probes(ks);
-
-	/* call trace_end_closure after probed end */
-	if (G(ks)->trace_end_closure) {
-		setcllvalue(ks->top, G(ks)->trace_end_closure);
-		incr_top(ks);
-		kp_call(ks, ks->top - 1, 0);
-		G(ks)->trace_end_closure = NULL;
-	}
-
-	return 0;
-}
-
-void kp_probe_exit(ktap_state *ks)
-{
-	if (!G(ks)->trace_enabled)
-		return;
-
-	end_probes(ks);
-
-	/* call trace_end_closure after probed end */
-	if (!G(ks)->error && G(ks)->trace_end_closure) {
-		setcllvalue(ks->top, G(ks)->trace_end_closure);
-		incr_top(ks);
-		kp_call(ks, ks->top - 1, 0);
-		G(ks)->trace_end_closure = NULL;
-	}
-
-	G(ks)->trace_enabled = 0;
-}
-
-int kp_probe_init(ktap_state *ks)
-{
-	G(ks)->trace_enabled = 1;
-	return 0;
-}
-
-static const ktap_Reg kdebuglib_funcs[] = {
-	{"probe_by_id", ktap_lib_probe_by_id},
-	{"probe_end", ktap_lib_probe_end},
-	{"traceoff", ktap_lib_traceoff},
-	{NULL}
-};
-
-void kp_init_kdebuglib(ktap_state *ks)
-{
-	kp_ftrace_profile_set_filter =
-		(void *)kallsyms_lookup_name("ftrace_profile_set_filter");
-	if (!kp_ftrace_profile_set_filter) {
-		printk("ktap: cannot lookup ftrace_profile_set_filter "
-		       "in kallsyms\n");
-		return;
-	}
-
-	kp_register_lib(ks, "kdebug", kdebuglib_funcs);
-}
-
diff --git a/drivers/staging/ktap/interpreter/library/timer.c b/drivers/staging/ktap/interpreter/library/timer.c
deleted file mode 100644
index 759f917b3658..000000000000
--- a/drivers/staging/ktap/interpreter/library/timer.c
+++ /dev/null
@@ -1,192 +0,0 @@
-/*
- * timer.c - timer library support for ktap
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <linux/ctype.h>
-#include <linux/slab.h>
-#include <linux/delay.h>
-#include <linux/sched.h>
-#include "../../include/ktap.h"
-
-struct hrtimer_ktap {
-	struct hrtimer timer;
-	ktap_state *ks;
-	ktap_closure *cl;
-	u64 ns;
-	struct list_head list;
-};
-
-/*
- * Currently ktap disallow tracing event in timer callback closure,
- * that will corrupt ktap_state and ktap stack, because timer closure
- * and event closure use same irq percpu ktap_state and stack.
- * We can use a different percpu ktap_state and stack for timer purpuse,
- * but that's don't bring any big value with cost on memory consuming.
- *
- * So just simply disable tracing in timer closure,
- * get_recursion_context()/put_recursion_context() is used for this purpose.
- *
- * option: export perf_swevent_put_recursion_context to slove this issue.
- */
-static enum hrtimer_restart hrtimer_ktap_fn(struct hrtimer *timer)
-{
-	struct hrtimer_ktap *t;
-	ktap_state *ks;
-	int rctx;
-
-	rcu_read_lock_sched_notrace();
-	rctx = get_recursion_context();
-
-	t = container_of(timer, struct hrtimer_ktap, timer);
-
-	ks = kp_newthread(t->ks);
-	setcllvalue(ks->top, t->cl);
-	incr_top(ks);
-	kp_call(ks, ks->top - 1, 0);
-	kp_exitthread(ks);
-
-	hrtimer_add_expires_ns(timer, t->ns);
-
-	put_recursion_context(rctx);
-	rcu_read_unlock_sched_notrace();
-
-	return HRTIMER_RESTART;
-}
-
-static void set_tick_timer(ktap_state *ks, u64 period, ktap_closure *cl)
-{
-	struct hrtimer_ktap *t;
-
-	t = kp_malloc(ks, sizeof(*t));
-	t->ks = ks;
-	t->cl = cl;
-	t->ns = period;
-
-	INIT_LIST_HEAD(&t->list);
-	list_add(&t->list, &(G(ks)->timers));
-
-	hrtimer_init(&t->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	t->timer.function = hrtimer_ktap_fn;
-	hrtimer_start(&t->timer, ns_to_ktime(period), HRTIMER_MODE_REL);
-}
-
-static void set_profile_timer(ktap_state *ks, u64 period, ktap_closure *cl)
-{
-	struct perf_event_attr attr;
-
-	memset(&attr, 0, sizeof(attr));
-	attr.type = PERF_TYPE_SOFTWARE;
-	attr.config = PERF_COUNT_SW_CPU_CLOCK;
-	attr.sample_type = PERF_SAMPLE_RAW | PERF_SAMPLE_TIME |
-			   PERF_SAMPLE_CPU | PERF_SAMPLE_PERIOD;
-	attr.sample_period = period;
-	attr.size = sizeof(attr);
-	attr.disabled = 0;
-
-	kp_perf_event_register(ks, &attr, NULL, NULL, cl);
-}
-
-static int do_tick_profile(ktap_state *ks, int is_tick)
-{
-	const char *str, *tmp;
-	char interval_str[32] = {0};
-	char suffix[10] = {0};
-	int n, i = 0;
-	int factor;
-
-	kp_arg_check(ks, 1, KTAP_TSTRING);
-	kp_arg_check(ks, 2, KTAP_TFUNCTION);
-
-	str = svalue(kp_arg(ks, 1));
-	tmp = str;
-	while (isdigit(*tmp))
-		tmp++;
-
-	strncpy(interval_str, str, tmp - str);
-	if (kstrtoint(interval_str, 10, &n))
-		goto error;
-
-	strncpy(suffix, tmp, 9);
-	while (suffix[i] != ' ' && suffix[i] != '\0')
-		i++;
-
-	suffix[i] = '\0';
-
-	if (!strcmp(suffix, "s") || !strcmp(suffix, "sec"))
-		factor = NSEC_PER_SEC;
-	else if (!strcmp(suffix, "ms") || !strcmp(suffix, "msec"))
-		factor = NSEC_PER_MSEC;
-	else if (!strcmp(suffix, "us") || !strcmp(suffix, "usec"))
-		factor = NSEC_PER_USEC;
-	else
-		goto error;
-
-	if (is_tick)
-		set_tick_timer(ks, (u64)factor * n, clvalue(kp_arg(ks, 2)));
-	else
-		set_profile_timer(ks, (u64)factor * n, clvalue(kp_arg(ks, 2)));
-
-	return 0;
-
- error:
-	kp_error(ks, "cannot parse timer interval: %s\n", str);
-	return -1;
-}
-
-/*
- * tick-n probes fire on only one CPU per interval.
- * valid time suffixes: sec/s, msec/ms, usec/us
- */
-static int ktap_lib_tick(ktap_state *ks)
-{
-	return do_tick_profile(ks, 1);
-}
-
-/*
- * A profile-n probe fires every fixed interval on every CPU
- * valid time suffixes: sec/s, msec/ms, usec/us
- */
-static int ktap_lib_profile(ktap_state *ks)
-{
-	return do_tick_profile(ks, 0);
-}
-
-void kp_exit_timers(ktap_state *ks)
-{
-	struct hrtimer_ktap *t, *tmp;
-	struct list_head *timers_list = &(G(ks)->timers);
-
-	list_for_each_entry_safe(t, tmp, timers_list, list) {
-		hrtimer_cancel(&t->timer);
-		kp_free(ks, t);
-	}
-}
-
-static const ktap_Reg timerlib_funcs[] = {
-	{"profile",	ktap_lib_profile},
-	{"tick",	ktap_lib_tick},
-	{NULL}
-};
-
-void kp_init_timerlib(ktap_state *ks)
-{
-	kp_register_lib(ks, "timer", timerlib_funcs);
-}
-
diff --git a/drivers/staging/ktap/interpreter/loader.c b/drivers/staging/ktap/interpreter/loader.c
deleted file mode 100644
index 0da54d7ef146..000000000000
--- a/drivers/staging/ktap/interpreter/loader.c
+++ /dev/null
@@ -1,310 +0,0 @@
-/*
- * loader.c - loader for ktap bytecode chunk file
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
- *  - The part of code in this file is copied from lua initially.
- *  - lua's MIT license is compatible with GPL.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <linux/slab.h>
-#include "../include/ktap.h"
-
-#define KTAPC_TAIL	"\x19\x93\r\n\x1a\n"
-
-struct load_state {
-	unsigned char *buff;
-	int pos;
-	ktap_state *ks;
-};
-
-#define READ_CHAR(S)  (S->buff[S->pos++])
-#define READ_BYTE(S)  READ_CHAR(S)
-#define READ_INT(S)  load_int(S)
-#define READ_NUMBER(S) load_number(S)
-#define READ_STRING(S)	load_string(S)
-#define READ_VECTOR(S, dst, size)  \
-	do {	\
-		memcpy(dst, &S->buff[S->pos], size);	\
-		S->pos += size;	\
-	} while(0)
-
-#define NEW_VECTOR(S, size)	kp_malloc(S->ks, size)
-#define GET_CURRENT(S)		&S->buff[S->pos]
-#define ADD_POS(S, size)	S->pos += size
-
-
-static int load_function(struct load_state *S, ktap_proto *f);
-
-
-static int load_int(struct load_state *S)
-{
-	int x;
-
-	READ_VECTOR(S, &x, sizeof(int));
-	return x;
-}
-
-static int load_number(struct load_state *S)
-{
-	int x;
-
-	READ_VECTOR(S, &x, sizeof(ktap_number));
-	return x;
-}
-
-static ktap_string *load_string(struct load_state *S)
-{
-	ktap_string *ts;
-	size_t size;
-
-	size = READ_INT(S);
-
-	if (!size)
-		return NULL;
-	else {
-		char *s = GET_CURRENT(S);
-		ADD_POS(S, size);
-		/* remove trailing '\0' */
-		ts = kp_tstring_newlstr(S->ks, s, size - 1);
-		return ts;
-	}
-}
-
-
-static int load_code(struct load_state *S, ktap_proto *f)
-{
-	int n = READ_INT(S);
-
-	f->sizecode = n;
-	f->code = NEW_VECTOR(S, n * sizeof(ktap_instruction));
-	READ_VECTOR(S, f->code, n * sizeof(ktap_instruction));
-
-	return 0;
-}
-
-static int load_constants(struct load_state *S, ktap_proto *f)
-{
-	int i,n;
-
-	n = READ_INT(S);
-
-	f->sizek = n;
-	f->k = NEW_VECTOR(S, n * sizeof(ktap_value));
-	for (i = 0; i < n; i++)
-		setnilvalue(&f->k[i]);
-
-	for (i=0; i < n; i++) {
-		ktap_value *o = &f->k[i];
-
-		int t = READ_CHAR(S);
-		switch (t) {
-		case KTAP_TNIL:
-			setnilvalue(o);
-			break;
-		case KTAP_TBOOLEAN:
-			setbvalue(o, READ_CHAR(S));
-			break;
-		case KTAP_TNUMBER:
-			/*
-			 * todo: kernel not support fp, check double when
-			 * loading
-			 */
-			setnvalue(o, READ_NUMBER(S));
-			break;
-		case KTAP_TSTRING:
-			setsvalue(o, READ_STRING(S));
-			break;
-		default:
-			kp_error(S->ks, "ktap: load_constants: "
-					"unknow ktap_value\n");
-			return -1;
-			
-		}
-	}
-
-	n = READ_INT(S);
-	f->p = NEW_VECTOR(S, n * sizeof(ktap_proto));
-	f->sizep = n;
-	for (i = 0; i < n; i++)
-		f->p[i] = NULL;
-	for (i = 0; i < n; i++) {
-		f->p[i] = kp_newproto(S->ks);
-		if (load_function(S, f->p[i]))
-			return -1;
-	}
-
-	return 0;
-}
-
-
-static int load_upvalues(struct load_state *S, ktap_proto *f)
-{
-	int i,n;
-
-	n = READ_INT(S);
-	f->upvalues = NEW_VECTOR(S, n * sizeof(ktap_upvaldesc));
-	f->sizeupvalues = n;
-
-	for (i = 0; i < n; i++)
-		f->upvalues[i].name = NULL;
-
-	for (i = 0; i < n; i++) {
-		f->upvalues[i].instack = READ_BYTE(S);
-		f->upvalues[i].idx = READ_BYTE(S);
-	}
-
-	return 0;
-}
-
-static int load_debuginfo(struct load_state *S, ktap_proto *f)
-{
-	int i,n;
-
-	f->source = READ_STRING(S);
-	n = READ_INT(S);
-	f->sizelineinfo = n;
-	f->lineinfo = NEW_VECTOR(S, n * sizeof(int));
-	READ_VECTOR(S, f->lineinfo, n * sizeof(int));
-	n = READ_INT(S);
-	f->locvars = NEW_VECTOR(S, n * sizeof(struct ktap_locvar));
-	f->sizelocvars = n;
-	for (i = 0; i < n; i++)
-		f->locvars[i].varname = NULL;
-	for (i = 0; i < n; i++) {
-		f->locvars[i].varname = READ_STRING(S);
-		f->locvars[i].startpc = READ_INT(S);
-		f->locvars[i].endpc = READ_INT(S);
-	}
-	n = READ_INT(S);
-	for (i = 0; i < n; i++)
-		f->upvalues[i].name = READ_STRING(S);
-
-	return 0;
-}
-
-static int load_function(struct load_state *S, ktap_proto *f)
-{
-	f->linedefined = READ_INT(S);
- 	f->lastlinedefined = READ_INT(S);
-	f->numparams = READ_BYTE(S);
-	f->is_vararg = READ_BYTE(S);
-	f->maxstacksize = READ_BYTE(S);
-	if (load_code(S, f))
-		return -1;
-	if (load_constants(S, f))
-		return -1;
-	if (load_upvalues(S, f))
-		return -1;
-	if (load_debuginfo(S, f))
-		return -1;
-
-	return 0;
-}
-
-
-#define error(S, why) \
-	kp_error(S->ks, "load failed: %s precompiled chunk\n", why)
-
-#define N0	KTAPC_HEADERSIZE
-#define N1	(sizeof(KTAP_SIGNATURE) - sizeof(char))
-#define N2	N1 + 2
-#define N3	N2 + 6
-
-static int load_header(struct load_state *S)
-{
-	u8 h[KTAPC_HEADERSIZE];
-	u8 s[KTAPC_HEADERSIZE];
-
-	kp_header(h);
-	READ_VECTOR(S, s, KTAPC_HEADERSIZE);
-
-	if (memcmp(h, s, N0) == 0)
-		return 0;
-	if (memcmp(h, s, N1) != 0)
-		error(S, "not a");
-	else if (memcmp(h, s, N2) != 0)
-		error(S, "version mismatch in");
-	else if (memcmp(h, s, N3) != 0)
-		error(S, "incompatible");
-	else
-		error(S,"corrupted");
-
-	return -1;
-}
-
-
-static int verify_code(struct load_state *S, ktap_proto *f)
-{
-	/* not support now */
-	return 0;
-}
-
-
-ktap_closure *kp_load(ktap_state *ks, unsigned char *buff)
-{
-	struct load_state S;
-	ktap_closure *cl;
-	ktap_lclosure *f;
-	int ret, i;
-
-	S.ks = ks;
-	S.buff = buff;
-	S.pos = 0;
-
-	ret = load_header(&S);
-	if (ret)
-		return NULL;
-
-	cl = kp_newlclosure(ks, 1);
-	if (!cl)
-		return cl;
-
-	/* put closure on the top, prepare to run with this closure */
-	setcllvalue(ks->top, cl);
-	incr_top(ks);
-
-	cl->l.p = kp_newproto(ks);
-	if (load_function(&S, cl->l.p))
-		return NULL;
-
-	if (cl->l.p->sizeupvalues != 1) {
-		ktap_proto *p = cl->l.p;
-		cl = kp_newlclosure(ks, cl->l.p->sizeupvalues);
-		cl->l.p = p;
-		setcllvalue(ks->top - 1, cl);
-	}
-
-	f = &cl->l;
-	for (i = 0; i < f->nupvalues; i++) {  /* initialize upvalues */
-		ktap_upval *up = kp_newupval(ks);
-		f->upvals[i] = up;
-	}
-
-	/* set global table as 1st upvalue of 'f' */
-	if (f->nupvalues == 1) {
-		ktap_table *reg = hvalue(&G(ks)->registry);
-		const ktap_value *gt = kp_table_getint(reg, KTAP_RIDX_GLOBALS);
-		setobj(f->upvals[0]->v, gt);
-	}
-
-	verify_code(&S, cl->l.p);
-	return cl;
-}
-
diff --git a/drivers/staging/ktap/interpreter/object.c b/drivers/staging/ktap/interpreter/object.c
deleted file mode 100644
index 6538167a2b87..000000000000
--- a/drivers/staging/ktap/interpreter/object.c
+++ /dev/null
@@ -1,483 +0,0 @@
-/*
- * object.c - ktap object generic operation
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
- *  - The part of code in this file is copied from lua initially.
- *  - lua's MIT license is compatible with GPL.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifdef __KERNEL__
-#include "../include/ktap.h"
-#else
-#include "../include/ktap_types.h"
-#endif
-
-#ifdef __KERNEL__
-
-#define KTAP_ALLOC_FLAGS ((GFP_KERNEL | __GFP_NORETRY | __GFP_NOWARN) \
-			 & ~__GFP_WAIT)
-
-void *kp_malloc(ktap_state *ks, int size)
-{
-	void *addr;
-
-	/*
-	 * Normally we don't want to trace under memory pressure,
-	 * so we use a simple rule to handle memory allocation failure:
-	 *
-	 * retry until allocation success, this will make caller don't need
-	 * to handle the unlikely failure case, then ktap exit.
-	 *
-	 * In this approach, if user find there have memory allocation failure,
-	 * user should re-run the ktap script, or fix the memory pressure
-	 * issue, or figure out why the script need so many memory.
-	 *
-	 * Perhaps return pre-allocated stub memory trunk when allocate failed
-	 * is a better approch?
-	 */
-	addr = kmalloc(size, KTAP_ALLOC_FLAGS);
-	if (unlikely(!addr)) {
-		kp_error(ks, "kmalloc size %d failed, retry again\n", size);
-		printk("ktap kmalloc size %d failed, retry again\n", size);
-		dump_stack();
-		while (1) {
-			addr = kmalloc(size, KTAP_ALLOC_FLAGS);
-			if (addr)
-				break;
-		}
-		kp_printf(ks, "kmalloc retry success after failed, exit\n");
-	}
-
-	return addr;
-}
-
-void kp_free(ktap_state *ks, void *addr)
-{
-	kfree(addr);
-}
-
-void *kp_reallocv(ktap_state *ks, void *addr, int oldsize, int newsize)
-{
-	void *new_addr;
-
-	new_addr = krealloc(addr, newsize, KTAP_ALLOC_FLAGS);
-	if (unlikely(!new_addr)) {
-		kp_error(ks, "krealloc size %d failed, retry again\n", newsize);
-		printk("ktap krealloc size %d failed, retry again\n", newsize);
-		dump_stack();
-		while (1) {
-			new_addr = krealloc(addr, newsize, KTAP_ALLOC_FLAGS);
-			if (new_addr)
-				break;
-		}
-		kp_printf(ks, "krealloc retry success after failed, exit\n");
-	}
-
-	return new_addr;
-}
-
-void *kp_zalloc(ktap_state *ks, int size)
-{
-	void *addr;
-
-	addr = kzalloc(size, KTAP_ALLOC_FLAGS);
-	if (unlikely(!addr)) {
-		kp_error(ks, "kzalloc size %d failed, retry again\n", size);
-		printk("ktap kzalloc size %d failed, retry again\n", size);
-		dump_stack();
-		while (1) {
-			addr = kzalloc(size, KTAP_ALLOC_FLAGS);
-			if (addr)
-				break;
-		}
-		kp_printf(ks, "kzalloc retry success after failed, exit\n");
-	}
-
-	return addr;
-}
-#endif
-
-void kp_obj_dump(ktap_state *ks, const ktap_value *v)
-{
-	switch (ttype(v)) {
-	case KTAP_TNIL:
-		kp_puts(ks, "NIL");
-		break;
-	case KTAP_TNUMBER:
-		kp_printf(ks, "NUMBER %ld", nvalue(v));
-		break;
-	case KTAP_TBOOLEAN:
-		kp_printf(ks, "BOOLEAN %d", bvalue(v));
-		break;
-	case KTAP_TLIGHTUSERDATA:
-		kp_printf(ks, "LIGHTUSERDATA 0x%lx", (unsigned long)pvalue(v));
-		break;
-	case KTAP_TLCF:
-		kp_printf(ks, "LIGHTCFCUNTION 0x%lx", (unsigned long)fvalue(v));
-		break;
-	case KTAP_TSHRSTR:
-	case KTAP_TLNGSTR:
-		kp_printf(ks, "SHRSTR #%s", svalue(v));
-		break;
-	case KTAP_TUSERDATA:
-		kp_printf(ks, "USERDATA 0x%lx", (unsigned long)uvalue(v));
-		break;
-	case KTAP_TTABLE:
-		kp_printf(ks, "TABLE 0x%lx", (unsigned long)hvalue(v));
-		break;
-        default:
-		kp_printf(ks, "GCVALUE 0x%lx", (unsigned long)gcvalue(v));
-		break;
-	}
-}
-
-#ifdef __KERNEL__
-#include <linux/stacktrace.h>
-#include <linux/kallsyms.h>
-
-static void kp_btrace_dump(ktap_state *ks, ktap_btrace *bt)
-{
-	char str[KSYM_SYMBOL_LEN];
-	int i;
-
-	for (i = 0; i < bt->nr_entries; i++) {
-		unsigned long p = bt->entries[i];
-
-		if (p == ULONG_MAX)
-			break;
-
-		SPRINT_SYMBOL(str, p);
-		kp_printf(ks, "%s\n", str);
-	}
-}
-
-static int kp_btrace_equal(ktap_btrace *bt1, ktap_btrace *bt2)
-{
-	int i;
-
-	if (bt1->nr_entries != bt2->nr_entries)
-		return 0;
-
-	for (i = 0; i < bt1->nr_entries; i++) {
-		if (bt1->entries[i] != bt2->entries[i])
-			return 0;
-	}
-
-	return 1;
-}
-#endif
-
-void kp_showobj(ktap_state *ks, const ktap_value *v)
-{
-	switch (ttype(v)) {
-	case KTAP_TNIL:
-		kp_puts(ks, "nil");
-		break;
-	case KTAP_TNUMBER:
-		kp_printf(ks, "%ld", nvalue(v));
-		break;
-	case KTAP_TBOOLEAN:
-		kp_puts(ks, (bvalue(v) == 1) ? "true" : "false");
-		break;
-	case KTAP_TLIGHTUSERDATA:
-		kp_printf(ks, "0x%lx", (unsigned long)pvalue(v));
-		break;
-	case KTAP_TLCF:
-		kp_printf(ks, "0x%lx", (unsigned long)fvalue(v));
-		break;
-	case KTAP_TSHRSTR:
-	case KTAP_TLNGSTR:
-		kp_puts(ks, svalue(v));
-		break;
-	case KTAP_TUSERDATA:
-		kp_printf(ks, "0x%lx", (unsigned long)uvalue(v));
-		break;
-	case KTAP_TTABLE:
-		kp_table_dump(ks, hvalue(v));
-		break;
-#ifdef __KERNEL__
-	case KTAP_TEVENT:
-		kp_transport_event_write(ks, evalue(v));
-		break;
-	case KTAP_TBTRACE:
-		kp_btrace_dump(ks, btvalue(v));
-		break;
-	case KTAP_TAGGRTABLE:
-		kp_aggrtable_dump(ks, ahvalue(v));
-		break;
-	case KTAP_TAGGRACCVAL:
-		kp_aggraccval_dump(ks, aggraccvalue(v));
-		break;
-#endif
-        default:
-		kp_error(ks, "print unknown value type: %d\n", ttype(v));
-		break;
-	}
-}
-
-
-/*
- * equality of ktap values. ks == NULL means raw equality
- */
-int kp_equalobjv(ktap_state *ks, const ktap_value *t1, const ktap_value *t2)
-{
-	switch (ttype(t1)) {
-	case KTAP_TNIL:
-		return 1;
-	case KTAP_TNUMBER:
-		return nvalue(t1) == nvalue(t2);
-	case KTAP_TBOOLEAN:
-		return bvalue(t1) == bvalue(t2);  /* true must be 1 !! */
-	case KTAP_TLIGHTUSERDATA:
-		return pvalue(t1) == pvalue(t2);
-	case KTAP_TLCF:
-		return fvalue(t1) == fvalue(t2);
-	case KTAP_TSHRSTR:
-		return eqshrstr(rawtsvalue(t1), rawtsvalue(t2));
-	case KTAP_TLNGSTR:
-		return kp_tstring_eqlngstr(rawtsvalue(t1), rawtsvalue(t2));
-	case KTAP_TUSERDATA:
-		if (uvalue(t1) == uvalue(t2))
-			return 1;
-		else if (ks == NULL)
-			return 0;
-	case KTAP_TTABLE:
-		if (hvalue(t1) == hvalue(t2))
-			return 1;
-		else if (ks == NULL)
-			return 0;
-#ifdef __KERNEL__
-	case KTAP_TBTRACE:
-		return kp_btrace_equal(btvalue(t1), btvalue(t2));
-#endif
-	default:
-		return gcvalue(t1) == gcvalue(t2);
-	}
-
-	return 0;
-}
-
-/*
- * ktap will not use lua's length operator on table meaning,
- * also # is not for length operator any more in ktap.
- *
- * Quote from lua mannal:
- * 2.5.5 - The Length Operator
- *
- * The length operator is denoted by the unary operator #.
- * The length of a string is its number of bytes(that is,
- * the usual meaning of string length when each character is one byte).
- *
- * The length of a table t is defined to be any integer index n
- * such that t[n] is not nil and t[n+1] is nil; moreover, if t[1] is nil,
- * n can be zero. For a regular array, with non-nil values from 1 to a given n,
- * its length is exactly that n, the index of its last value. If the array has
- * "holes" (that is, nil values between other non-nil values), then #t can be
- * any of the indices that directly precedes a nil value
- * (that is, it may consider any such nil value as the end of the array).
- */
-int kp_objlen(ktap_state *ks, const ktap_value *v)
-{
-	switch(v->type) {
-	case KTAP_TTABLE:
-		return kp_table_length(ks, hvalue(v));
-	case KTAP_TSTRING:
-		return rawtsvalue(v)->tsv.len;
-	default:
-		kp_printf(ks, "cannot get length of type %d\n", v->type);
-		return -1;
-	}
-	return 0;
-}
-
-/* need to protect allgc field? */
-ktap_gcobject *kp_newobject(ktap_state *ks, int type, size_t size,
-			    ktap_gcobject **list)
-{
-	ktap_gcobject *o;
-
-	o = kp_malloc(ks, size);
-	if (list == NULL)
-		list = &G(ks)->allgc;
-
-	gch(o)->tt = type;
-	gch(o)->next = *list;
-	*list = o;
-
-	return o;
-}
-
-ktap_upval *kp_newupval(ktap_state *ks)
-{
-	ktap_upval *uv;
-
-	uv = &kp_newobject(ks, KTAP_TUPVAL, sizeof(ktap_upval), NULL)->uv;
-	uv->v = &uv->u.value;
-	setnilvalue(uv->v);
-	return uv;
-}
-
-static ktap_btrace *kp_newbacktrace(ktap_state *ks, ktap_gcobject **list)
-{
-	ktap_btrace *bt;
-
-	bt = &kp_newobject(ks, KTAP_TBTRACE, sizeof(ktap_btrace), list)->bt;
-	return bt;
-}
-
-void kp_objclone(ktap_state *ks, const ktap_value *o, ktap_value *newo,
-		 ktap_gcobject **list)
-{
-	if (ttisbtrace(o)) {
-		ktap_btrace *bt;
-		bt = kp_newbacktrace(ks, list);
-		bt->nr_entries = btvalue(o)->nr_entries;
-		memcpy(&bt->entries[0], &btvalue(o)->entries[0],
-					sizeof(bt->entries));
-		setbtvalue(newo, bt);
-	} else {
-		kp_error(ks, "cannot clone ktap value type %d\n", ttype(o));
-		setnilvalue(newo);
-	}
-}
-
-ktap_closure *kp_newlclosure(ktap_state *ks, int n)
-{
-	ktap_closure *cl;
-
-	cl = (ktap_closure *)kp_newobject(ks, KTAP_TLCL, sizeof(*cl), NULL);
-	cl->l.p = NULL;
-	cl->l.nupvalues = n;
-	while (n--)
-		cl->l.upvals[n] = NULL;
-
-	return cl;
-}
-
-static void free_proto(ktap_state *ks, ktap_proto *f)
-{
-	kp_free(ks, f->code);
-	kp_free(ks, f->p);
-	kp_free(ks, f->k);
-	kp_free(ks, f->lineinfo);
-	kp_free(ks, f->locvars);
-	kp_free(ks, f->upvalues);
-	kp_free(ks, f);
-}
-
-ktap_proto *kp_newproto(ktap_state *ks)
-{
-	ktap_proto *f;
-	f = (ktap_proto *)kp_newobject(ks, KTAP_TPROTO, sizeof(*f), NULL);
-	f->k = NULL;
- 	f->sizek = 0;
-	f->p = NULL;
-	f->sizep = 0;
-	f->code = NULL;
-	f->cache = NULL;
-	f->sizecode = 0;
-	f->lineinfo = NULL;
-	f->sizelineinfo = 0;
-	f->upvalues = NULL;
-	f->sizeupvalues = 0;
-	f->numparams = 0;
-	f->is_vararg = 0;
-	f->maxstacksize = 0;
-	f->locvars = NULL;
-	f->sizelocvars = 0;
-	f->linedefined = 0;
-	f->lastlinedefined = 0;
-	f->source = NULL;
-	return f;
-}
-
-static ktap_udata *newudata(ktap_state *ks, size_t s)
-{
-	ktap_udata *u;
-
-	u = &kp_newobject(ks, KTAP_TUSERDATA, sizeof(ktap_udata) + s, NULL)->u;
-	u->uv.len = s;
-	return u;
-}
-
-void *kp_newuserdata(ktap_state *ks, size_t size)
-{
-	ktap_udata *u;
-
-	u = newudata(ks, size);
-	return u + 1;
-}
-
-void kp_free_gclist(ktap_state *ks, ktap_gcobject *o)
-{
-	while (o) {
-		ktap_gcobject *next;
-
-		next = gch(o)->next;
-		switch (gch(o)->tt) {
-		case KTAP_TTABLE:
-			kp_table_free(ks, (ktap_table *)o);
-			break;
-		case KTAP_TPROTO:
-			free_proto(ks, (ktap_proto *)o);
-			break;
-#ifdef __KERNEL__
-		case KTAP_TAGGRTABLE:
-			kp_aggrtable_free(ks, (ktap_aggrtable *)o);
-			break;
-#endif
-		default:
-			kp_free(ks, o);
-		}
-		o = next;
-	}
-}
-
-void kp_free_all_gcobject(ktap_state *ks)
-{
-	kp_free_gclist(ks, G(ks)->allgc);
-	G(ks)->allgc = NULL;
-}
-
-/******************************************************************************/
-
-/*
- * make header for precompiled chunks
- * if you change the code below be sure to update load_header and FORMAT above
- * and KTAPC_HEADERSIZE in ktap_types.h
- */
-void kp_header(u8 *h)
-{
-	int x = 1;
-
-	memcpy(h, KTAP_SIGNATURE, sizeof(KTAP_SIGNATURE) - sizeof(char));
-	h += sizeof(KTAP_SIGNATURE) - sizeof(char);
-	*h++ = (u8)VERSION;
-	*h++ = (u8)FORMAT;
-	*h++ = (u8)(*(char*)&x);                    /* endianness */
-	*h++ = (u8)(sizeof(int));
-	*h++ = (u8)(sizeof(size_t));
-	*h++ = (u8)(sizeof(ktap_instruction));
-	*h++ = (u8)(sizeof(ktap_number));
-	*h++ = (u8)(((ktap_number)0.5) == 0); /* is ktap_number integral? */
-	memcpy(h, KTAPC_TAIL, sizeof(KTAPC_TAIL) - sizeof(char));
-}
-
-
diff --git a/drivers/staging/ktap/interpreter/opcode.c b/drivers/staging/ktap/interpreter/opcode.c
deleted file mode 100644
index 2f44855fcad2..000000000000
--- a/drivers/staging/ktap/interpreter/opcode.c
+++ /dev/null
@@ -1,127 +0,0 @@
-/*
- * opcode.c
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
- *  - The part of code in this file is copied from lua initially.
- *  - lua's MIT license is compatible with GPL.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include "../include/ktap_types.h"
-#include "../include/ktap_opcodes.h"
-
-const char *const ktap_opnames[NUM_OPCODES + 1] = {
-  "MOVE",
-  "LOADK",
-  "LOADKX",
-  "LOADBOOL",
-  "LOADNIL",
-  "GETUPVAL",
-  "GETTABUP",
-  "GETTABLE",
-  "SETTABUP",
-  "SETTABUP_INCR",
-  "SETUPVAL",
-  "SETTABLE",
-  "SETTABLE_INCR",
-  "NEWTABLE",
-  "SELF",
-  "ADD",
-  "SUB",
-  "MUL",
-  "DIV",
-  "MOD",
-  "POW",
-  "UNM",
-  "NOT",
-  "LEN",
-  "CONCAT",
-  "JMP",
-  "EQ",
-  "LT",
-  "LE",
-  "TEST",
-  "TESTSET",
-  "CALL",
-  "TAILCALL",
-  "RETURN",
-  "FORLOOP",
-  "FORPREP",
-  "TFORCALL",
-  "TFORLOOP",
-  "SETLIST",
-  "CLOSURE",
-  "VARARG",
-  "EXTRAARG",
-
-  "EVENT",
-  "EVENT_NAME",
-  "EVENT_ARG", /* arg1, arg2 .. arg9 */
-  NULL
-};
-
-
-#define opmode(t,a,b,c,m) (((t)<<7) | ((a)<<6) | ((b)<<4) | ((c)<<2) | (m))
-
-const u8 ktap_opmodes[NUM_OPCODES] = {
-/*       T  A    B       C     mode                opcode       */
-  opmode(0, 1, OpArgR, OpArgN, iABC)            /* OP_MOVE */
- ,opmode(0, 1, OpArgK, OpArgN, iABx)            /* OP_LOADK */
- ,opmode(0, 1, OpArgN, OpArgN, iABx)            /* OP_LOADKX */
- ,opmode(0, 1, OpArgU, OpArgU, iABC)            /* OP_LOADBOOL */
- ,opmode(0, 1, OpArgU, OpArgN, iABC)            /* OP_LOADNIL */
- ,opmode(0, 1, OpArgU, OpArgN, iABC)            /* OP_GETUPVAL */
- ,opmode(0, 1, OpArgU, OpArgK, iABC)            /* OP_GETTABUP */
- ,opmode(0, 1, OpArgR, OpArgK, iABC)            /* OP_GETTABLE */
- ,opmode(0, 0, OpArgK, OpArgK, iABC)            /* OP_SETTABUP */
- ,opmode(0, 0, OpArgU, OpArgN, iABC)            /* OP_SETUPVAL */
- ,opmode(0, 0, OpArgK, OpArgK, iABC)            /* OP_SETTABLE */
- ,opmode(0, 1, OpArgU, OpArgU, iABC)            /* OP_NEWTABLE */
- ,opmode(0, 1, OpArgR, OpArgK, iABC)            /* OP_SELF */
- ,opmode(0, 1, OpArgK, OpArgK, iABC)            /* OP_ADD */
- ,opmode(0, 1, OpArgK, OpArgK, iABC)            /* OP_SUB */
- ,opmode(0, 1, OpArgK, OpArgK, iABC)            /* OP_MUL */
- ,opmode(0, 1, OpArgK, OpArgK, iABC)            /* OP_DIV */
- ,opmode(0, 1, OpArgK, OpArgK, iABC)            /* OP_MOD */
- ,opmode(0, 1, OpArgK, OpArgK, iABC)            /* OP_POW */
- ,opmode(0, 1, OpArgR, OpArgN, iABC)            /* OP_UNM */
- ,opmode(0, 1, OpArgR, OpArgN, iABC)            /* OP_NOT */
- ,opmode(0, 1, OpArgR, OpArgN, iABC)            /* OP_LEN */
- ,opmode(0, 1, OpArgR, OpArgR, iABC)            /* OP_CONCAT */
- ,opmode(0, 0, OpArgR, OpArgN, iAsBx)           /* OP_JMP */
- ,opmode(1, 0, OpArgK, OpArgK, iABC)            /* OP_EQ */
- ,opmode(1, 0, OpArgK, OpArgK, iABC)            /* OP_LT */
- ,opmode(1, 0, OpArgK, OpArgK, iABC)            /* OP_LE */
- ,opmode(1, 0, OpArgN, OpArgU, iABC)            /* OP_TEST */
- ,opmode(1, 1, OpArgR, OpArgU, iABC)            /* OP_TESTSET */
- ,opmode(0, 1, OpArgU, OpArgU, iABC)            /* OP_CALL */
- ,opmode(0, 1, OpArgU, OpArgU, iABC)            /* OP_TAILCALL */
- ,opmode(0, 0, OpArgU, OpArgN, iABC)            /* OP_RETURN */
- ,opmode(0, 1, OpArgR, OpArgN, iAsBx)           /* OP_FORLOOP */
- ,opmode(0, 1, OpArgR, OpArgN, iAsBx)           /* OP_FORPREP */
- ,opmode(0, 0, OpArgN, OpArgU, iABC)            /* OP_TFORCALL */
- ,opmode(0, 1, OpArgR, OpArgN, iAsBx)           /* OP_TFORLOOP */
- ,opmode(0, 0, OpArgU, OpArgU, iABC)            /* OP_SETLIST */
- ,opmode(0, 1, OpArgU, OpArgN, iABx)            /* OP_CLOSURE */
- ,opmode(0, 1, OpArgU, OpArgN, iABC)            /* OP_VARARG */
- ,opmode(0, 0, OpArgU, OpArgU, iAx)             /* OP_EXTRAARG */
- ,opmode(0, 1, OpArgR, OpArgK, iABC)            /* OP_EVENT */
-};
-
-
diff --git a/drivers/staging/ktap/interpreter/strfmt.c b/drivers/staging/ktap/interpreter/strfmt.c
deleted file mode 100644
index 2c1e7618fef4..000000000000
--- a/drivers/staging/ktap/interpreter/strfmt.c
+++ /dev/null
@@ -1,196 +0,0 @@
-/*
- * strfmt.c - printf implementation
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
- *  - The part of code in this file is copied from lua initially.
- *  - lua's MIT license is compatible with GPL.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <linux/ctype.h>
-#include <linux/kallsyms.h>
-#include "../include/ktap.h"
-
-/* macro to `unsign' a character */
-#define uchar(c)	((unsigned char)(c))
-
-#define L_ESC		'%'
-
-/* valid flags in a format specification */
-#define FLAGS	"-+ #0"
-
-#define INTFRMLEN	"ll"
-#define INTFRM_T	long long
-
-/*
- * maximum size of each format specification (such as '%-099.99d')
- * (+10 accounts for %99.99x plus margin of error)
- */
-#define MAX_FORMAT	(sizeof(FLAGS) + sizeof(INTFRMLEN) + 10)
-
-static const char *scanformat(ktap_state *ks, const char *strfrmt, char *form)
-{
-	const char *p = strfrmt;
-	while (*p != '\0' && strchr(FLAGS, *p) != NULL)
-		p++;  /* skip flags */
-
-	if ((size_t)(p - strfrmt) >= sizeof(FLAGS)/sizeof(char)) {
-		kp_error(ks, "invalid format (repeated flags)\n");
-		return NULL;
-	}
-
-	if (isdigit(uchar(*p)))
-		p++;  /* skip width */
-
-	if (isdigit(uchar(*p)))
-		p++;  /* (2 digits at most) */
-
-	if (*p == '.') {
-		p++;
-		if (isdigit(uchar(*p)))
-			p++;  /* skip precision */
-		if (isdigit(uchar(*p)))
-			p++;  /* (2 digits at most) */
-	}
-
-	if (isdigit(uchar(*p))) {
-		kp_error(ks, "invalid format (width or precision too long)\n");
-		return NULL;
-	}
-
-	*(form++) = '%';
-	memcpy(form, strfrmt, (p - strfrmt + 1) * sizeof(char));
-	form += p - strfrmt + 1;
-	*form = '\0';
-	return p;
-}
-
-
-/*
- * add length modifier into formats
- */
-static void addlenmod(char *form, const char *lenmod)
-{
-	size_t l = strlen(form);
-	size_t lm = strlen(lenmod);
-	char spec = form[l - 1];
-
-	strcpy(form + l - 1, lenmod);
-	form[l + lm - 1] = spec;
-	form[l + lm] = '\0';
-}
-
-
-static void ktap_argerror(ktap_state *ks, int narg, const char *extramsg)
-{
-	kp_error(ks, "bad argument #%d: (%s)\n", narg, extramsg);
-}
-
-int kp_strfmt(ktap_state *ks, struct trace_seq *seq)
-{
-	int arg = 1;
-	size_t sfl;
-	ktap_value *arg_fmt = kp_arg(ks, 1);
-	int argnum = kp_arg_nr(ks);
-	const char *strfrmt, *strfrmt_end;
-
-	strfrmt = svalue(arg_fmt);
-	sfl = rawtsvalue(arg_fmt)->tsv.len;
-	strfrmt_end = strfrmt + sfl;
-
-	while (strfrmt < strfrmt_end) {
-		if (*strfrmt != L_ESC)
-			trace_seq_putc(seq, *strfrmt++);
-		else if (*++strfrmt == L_ESC)
-			trace_seq_putc(seq, *strfrmt++);
-		else { /* format item */
-			char form[MAX_FORMAT];
-
-			if (++arg > argnum) {
-				ktap_argerror(ks, arg, "no value");
-				return -1;
-			}
-
-			strfrmt = scanformat(ks, strfrmt, form);
-			switch (*strfrmt++) {
-			case 'c':
-				trace_seq_printf(seq, form,
-						 nvalue(kp_arg(ks, arg)));
-				break;
-			case 'd':  case 'i': {
-				ktap_number n = nvalue(kp_arg(ks, arg));
-				INTFRM_T ni = (INTFRM_T)n;
-				addlenmod(form, INTFRMLEN);
-				trace_seq_printf(seq, form, ni);
-				break;
-			}
-			case 'p': {
-				char str[KSYM_SYMBOL_LEN];
-				SPRINT_SYMBOL(str, nvalue(kp_arg(ks, arg)));
-				trace_seq_puts(seq, str);
-				break;
-			}
-			case 'o':  case 'u':  case 'x':  case 'X': {
-				ktap_number n = nvalue(kp_arg(ks, arg));
-				unsigned INTFRM_T ni = (unsigned INTFRM_T)n;
-				addlenmod(form, INTFRMLEN);
-				trace_seq_printf(seq, form, ni);
-				break;
-			}
-			case 's': {
-				ktap_value *v = kp_arg(ks, arg);
-				const char *s;
-				size_t l;
-
-				if (isnil(v)) {
-					trace_seq_puts(seq, "nil");
-					return 0;
-				}
-
-				if (ttisevent(v)) {
-					kp_event_tostring(ks, seq);
-					return 0;
-				}
-
-				s = svalue(v);
-				l = rawtsvalue(v)->tsv.len;
-				if (!strchr(form, '.') && l >= 100) {
-					/*
-					 * no precision and string is too long
-					 * to be formatted;
-					 * keep original string
-					 */
-					trace_seq_puts(seq, s);
-					break;
-				} else {
-					trace_seq_printf(seq, form, s);
-					break;
-				}
-			}
-			default: /* also treat cases `pnLlh' */
-				kp_error(ks, "invalid option " KTAP_QL("%%%c")
-					     " to " KTAP_QL("format"),
-					     *(strfrmt - 1));
-			}
-		}
-	}
-
-	return 0;
-}
-
diff --git a/drivers/staging/ktap/interpreter/table.c b/drivers/staging/ktap/interpreter/table.c
deleted file mode 100644
index 4e83947ba02d..000000000000
--- a/drivers/staging/ktap/interpreter/table.c
+++ /dev/null
@@ -1,1292 +0,0 @@
-/*
- * table.c - ktap table data structure manipulation function
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
- *  - The part of code in this file is copied from lua initially.
- *  - lua's MIT license is compatible with GPL.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifdef __KERNEL__
-#include "../include/ktap.h"
-#include <linux/spinlock.h>
-#include <linux/kallsyms.h>
-#include <linux/sort.h>
-#else
-#include "../include/ktap_types.h"
-
-static inline void sort(void *base, size_t num, size_t size,
-			int (*cmp_func)(const void *, const void *),
-			void (*swap_func)(void *, void *, int size))
-{}
-#endif
-
-
-#ifdef __KERNEL__
-#define kp_table_lock_init(t)	\
-	do {	\
-		t->lock = (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED;	\
-	} while (0)
-#define kp_table_lock(t)	\
-	do {	\
-		local_irq_save(flags);	\
-		arch_spin_lock(&t->lock);	\
-	} while (0)
-#define kp_table_unlock(t)	\
-	do {	\
-		arch_spin_unlock(&t->lock);	\
-		local_irq_restore(flags);	\
-	} while (0)
-
-#else
-#define kp_table_lock_init(t)
-#define kp_table_lock(t)
-#define kp_table_unlock(t)
-#endif
-
-#define MAXBITS         30
-#define MAXASIZE        (1 << MAXBITS)
-
-
-#define NILCONSTANT     {NULL}, KTAP_TNIL
-const struct ktap_value ktap_nilobjectv = {NILCONSTANT};
-#define ktap_nilobject	(&ktap_nilobjectv)
-
-static const ktap_tnode dummynode_ = {
-	{NILCONSTANT}, /* value */
-	{{NILCONSTANT, NULL}}, /* key */
-};
-
-#define gnode(t,i)      (&(t)->node[i])
-#define gkey(n)         (&(n)->i_key.tvk)
-#define gval(n)         (&(n)->i_val)
-#define gnext(n)        ((n)->i_key.nk.next)
-
-#define twoto(x)        (1<<(x))
-#define sizenode(t)	(twoto((t)->lsizenode))
-
-#define hashpow2(t,n)           (gnode(t, lmod((n), sizenode(t))))
-
-#define hashmod(t,n)		(gnode(t, ((n) % ((sizenode(t)-1)|1))))
-
-#define hashstr(t,str)          hashpow2(t, (str)->tsv.hash)
-#define hashboolean(t,p)        hashpow2(t, p)
-#define hashnum(t, n)		hashmod(t, (unsigned int)n)
-#define hashpointer(t,p)	hashmod(t, (unsigned long)(p))
-
-#define dummynode	(&dummynode_)
-#define isdummy(n)	((n) == dummynode)
-
-static void table_setint(ktap_state *ks, ktap_table *t, int key, ktap_value *v);
-static ktap_value *table_set(ktap_state *ks, ktap_table *t,
-			     const ktap_value *key);
-static void setnodevector(ktap_state *ks, ktap_table *t, int size);
-
-static int ceillog2(unsigned int x)
-{
-	static const u8 log_2[256] = {
-	0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
-	6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
-	7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-	7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-	8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
-	8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
-	8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
-	8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
-	};
-
-	int l = 0;
-
-	x--;
-	while (x >= 256) { l += 8; x >>= 8; }
-	return l + log_2[x];
-}
-
-
-ktap_table *kp_table_new(ktap_state *ks)
-{
-	ktap_table *t = &kp_newobject(ks, KTAP_TTABLE, sizeof(ktap_table),
-				      NULL)->h;
-	t->flags = (u8)(~0);
-	t->array = NULL;
-	t->sizearray = 0;
-	t->node = (ktap_tnode *)dummynode;
-	t->gclist = NULL;
-	setnodevector(ks, t, 0);
-
-	kp_table_lock_init(t);
-	return t;
-}
-
-static const ktap_value *table_getint(ktap_table *t, int key)
-{
-	ktap_tnode *n;
-
-	if ((unsigned int)(key - 1) < (unsigned int)t->sizearray)
-		return &t->array[key - 1];
-
-	n = hashnum(t, key);
-	do {
-		if (ttisnumber(gkey(n)) && nvalue(gkey(n)) == key)
-			return gval(n);
-		else
-			n = gnext(n);
-	} while (n);
-
-	return ktap_nilobject;
-}
-
-const ktap_value *kp_table_getint(ktap_table *t, int key)
-{
-	const ktap_value *val;
-	unsigned long __maybe_unused flags;
-
-	kp_table_lock(t);
-	val = table_getint(t, key);
-	kp_table_unlock(t);
-
-	return val;
-}
-
-static ktap_tnode *mainposition (const ktap_table *t, const ktap_value *key)
-{
-	switch (ttype(key)) {
-	case KTAP_TNUMBER:
-		return hashnum(t, nvalue(key));
-	case KTAP_TLNGSTR: {
-		ktap_string *s = rawtsvalue(key);
-		if (s->tsv.extra == 0) {  /* no hash? */
-			s->tsv.hash = kp_string_hash(getstr(s), s->tsv.len,
-						     s->tsv.hash);
-			s->tsv.extra = 1;  /* now it has its hash */
-		}
-		return hashstr(t, rawtsvalue(key));
-		}
-	case KTAP_TSHRSTR:
-		return hashstr(t, rawtsvalue(key));
-	case KTAP_TBOOLEAN:
-		return hashboolean(t, bvalue(key));
-	case KTAP_TLIGHTUSERDATA:
-		return hashpointer(t, pvalue(key));
-	case KTAP_TLCF:
-		return hashpointer(t, fvalue(key));
-	case KTAP_TBTRACE:
-		/* use first entry as hash key, cannot use gcvalue as key */
-		return hashpointer(t, btvalue(key)->entries[0]);
-	default:
-		return hashpointer(t, gcvalue(key));
-	}
-}
-
-static int arrayindex(const ktap_value *key)
-{
-	if (ttisnumber(key)) {
-		ktap_number n = nvalue(key);
-		int k = (int)n;
-		if ((ktap_number)k == n)
-			return k;
-	}
-
-	/* `key' did not match some condition */
-	return -1;
-}
-
-/*
- * returns the index of a `key' for table traversals. First goes all
- * elements in the array part, then elements in the hash part. The
- * beginning of a traversal is signaled by -1.
- */
-static int findindex(ktap_state *ks, ktap_table *t, StkId key)
-{
-	int i;
-
-	if (ttisnil(key))
-		return -1;  /* first iteration */
-
-	i = arrayindex(key);
-	if (i > 0 && i <= t->sizearray)  /* is `key' inside array part? */
-		return i - 1;  /* yes; that's the index (corrected to C) */
-	else {
-		ktap_tnode *n = mainposition(t, key);
-		for (;;) {  /* check whether `key' is somewhere in the chain */
-			/* key may be dead already, but it is ok to use it in `next' */
-			if (kp_equalobjv(ks, gkey(n), key)) {
-				i = n - gnode(t, 0);  /* key index in hash table */
-				/* hash elements are numbered after array ones */
-				return i + t->sizearray;
-			} else
-				n = gnext(n);
-
-			if (n == NULL)
-				/* key not found */
-				kp_error(ks, "invalid table key to next");
-		}
-	}
-}
-
-int kp_table_next(ktap_state *ks, ktap_table *t, StkId key)
-{
-	unsigned long __maybe_unused flags;
-	int i;
-
-	kp_table_lock(t);
-
-	i = findindex(ks, t, key);  /* find original element */
-
-	for (i++; i < t->sizearray; i++) {  /* try first array part */
-	        if (!ttisnil(&t->array[i])) {  /* a non-nil value? */
-			setnvalue(key, i+1);
-			setobj(key+1, &t->array[i]);
-			kp_table_unlock(t);
-			return 1;
-		}
-	}
-
-	for (i -= t->sizearray; i < sizenode(t); i++) {  /* then hash part */
-		if (!ttisnil(gval(gnode(t, i)))) {  /* a non-nil value? */
-			setobj(key, gkey(gnode(t, i)));
-			setobj(key+1, gval(gnode(t, i)));
-			kp_table_unlock(t);
-			return 1;
-		}
-	}
-
-	kp_table_unlock(t);
-	return 0;  /* no more elements */
-}
-
-
-
-static int computesizes (int nums[], int *narray)
-{
-	int i;
-	int twotoi;  /* 2^i */
-	int a = 0;  /* number of elements smaller than 2^i */
-	int na = 0;  /* number of elements to go to array part */
-	int n = 0;  /* optimal size for array part */
-
-	for (i = 0, twotoi = 1; twotoi/2 < *narray; i++, twotoi *= 2) {
-		if (nums[i] > 0) {
-			a += nums[i];
-			/* more than half elements present? */
-			if (a > twotoi/2) {
-				/* optimal size (till now) */
-				n = twotoi;
-				/* 
-				 * all elements smaller than n will go to
-				 * array part
-				 */
-				na = a;
-			}
-		}
-		if (a == *narray)
-			break;  /* all elements already counted */
-	}
-	*narray = n;
-	return na;
-}
-
-
-static int countint(const ktap_value *key, int *nums)
-{
-	int k = arrayindex(key);
-
-	/* is `key' an appropriate array index? */
-	if (0 < k && k <= MAXASIZE) {
-		nums[ceillog2(k)]++;  /* count as such */
-		return 1;
-	} else
-		return 0;
-}
-
-
-static int numusearray(const ktap_table *t, int *nums)
-{
-	int lg;
-	int ttlg;  /* 2^lg */
-	int ause = 0;  /* summation of `nums' */
-	int i = 1;  /* count to traverse all array keys */
-
-	/* for each slice */
-	for (lg=0, ttlg=1; lg <= MAXBITS; lg++, ttlg *= 2) {
-		int lc = 0;  /* counter */
-		int lim = ttlg;
-
-		if (lim > t->sizearray) {
-			lim = t->sizearray;  /* adjust upper limit */
-			if (i > lim)
-				break;  /* no more elements to count */
-		}
-
-		/* count elements in range (2^(lg-1), 2^lg] */
-		for (; i <= lim; i++) {
-			if (!ttisnil(&t->array[i-1]))
-				lc++;
-		}
-		nums[lg] += lc;
-		ause += lc;
-	}
-	return ause;
-}
-
-static int numusehash(const ktap_table *t, int *nums, int *pnasize)
-{
-	int totaluse = 0;  /* total number of elements */
-	int ause = 0;  /* summation of `nums' */
-	int i = sizenode(t);
-
-	while (i--) {
-		ktap_tnode *n = &t->node[i];
-		if (!isnil(gval(n))) {
-			ause += countint(gkey(n), nums);
-			totaluse++;
-		}
-	}
-
-	*pnasize += ause;
-	return totaluse;
-}
-
-
-static void setarrayvector(ktap_state *ks, ktap_table *t, int size)
-{
-	int i;
-
-	kp_realloc(ks, t->array, t->sizearray, size, ktap_value);
-	for (i = t->sizearray; i < size; i++)
-		setnilvalue(&t->array[i]);
-
-	t->sizearray = size;
-}
-
-static void setnodevector(ktap_state *ks, ktap_table *t, int size)
-{
-	int lsize;
-
-	if (size == 0) {  /* no elements to hash part? */
-		t->node = (ktap_tnode *)dummynode;  /* use common `dummynode' */
-		lsize = 0;
-	} else {
-		int i;
-		lsize = ceillog2(size);
-		if (lsize > MAXBITS) {
-			kp_error(ks, "table overflow\n");
-			return;
-		}
-
-		size = twoto(lsize);
-		t->node = kp_malloc(ks, size * sizeof(ktap_tnode));
-		for (i = 0; i < size; i++) {
-			ktap_tnode *n = gnode(t, i);
-			gnext(n) = NULL;
-			setnilvalue(gkey(n));
-			setnilvalue(gval(n));
-		}
-	}
-
-	t->lsizenode = (u8)lsize;
-	t->lastfree = gnode(t, size);  /* all positions are free */
-}
-
-static void table_resize(ktap_state *ks, ktap_table *t, int nasize, int nhsize)
-{
-	int i;
-	int oldasize = t->sizearray;
-	int oldhsize = t->lsizenode;
-	ktap_tnode *nold = t->node;  /* save old hash ... */
-
-#ifdef __KERNEL__
-	kp_verbose_printf(ks, "table resize, nasize: %d, nhsize: %d\n",
-				nasize, nhsize);
-#endif
-
-	if (nasize > oldasize)  /* array part must grow? */
-		setarrayvector(ks, t, nasize);
-
-	/* create new hash part with appropriate size */
-	setnodevector(ks, t, nhsize);
-
-	if (nasize < oldasize) {  /* array part must shrink? */
-		t->sizearray = nasize;
-		/* re-insert elements from vanishing slice */
-		for (i=nasize; i<oldasize; i++) {
-			if (!ttisnil(&t->array[i]))
-				table_setint(ks, t, i + 1, &t->array[i]);
-		}
-
-		/* shrink array */
-		kp_realloc(ks, t->array, oldasize, nasize, ktap_value);
-	}
-
-	/* re-insert elements from hash part */
-	for (i = twoto(oldhsize) - 1; i >= 0; i--) {
-		ktap_tnode *old = nold+i;
-		if (!ttisnil(gval(old))) {
-			/*
-			 * doesn't need barrier/invalidate cache, as entry was
-			 * already present in the table
-			 */
-			setobj(table_set(ks, t, gkey(old)), gval(old));
-		}
-	}
-
-	if (!isdummy(nold))
-		kp_free(ks, nold); /* free old array */
-}
-
-void kp_table_resize(ktap_state *ks, ktap_table *t, int nasize, int nhsize)
-{
-	unsigned long __maybe_unused flags;
-
-	kp_table_lock(t);
-	table_resize(ks, t, nasize, nhsize);
-	kp_table_unlock(t);
-}
-
-void kp_table_resizearray(ktap_state *ks, ktap_table *t, int nasize)
-{
-	unsigned long __maybe_unused flags;
-	int nsize;
-
-	kp_table_lock(t);
-
-	nsize = isdummy(t->node) ? 0 : sizenode(t);
-	table_resize(ks, t, nasize, nsize);
-
-	kp_table_unlock(t);
-}
-
-static void rehash(ktap_state *ks, ktap_table *t, const ktap_value *ek)
-{
-	int nasize, na;
-	/* nums[i] = number of keys with 2^(i-1) < k <= 2^i */
-	int nums[MAXBITS+1];
-	int i;
-	int totaluse;
-
-	for (i = 0; i <= MAXBITS; i++)
-		nums[i] = 0;  /* reset counts */
-
-	nasize = numusearray(t, nums);  /* count keys in array part */
-	totaluse = nasize;  /* all those keys are integer keys */
-	totaluse += numusehash(t, nums, &nasize);  /* count keys in hash part */
-	/* count extra key */
-	nasize += countint(ek, nums);
-	totaluse++;
-	/* compute new size for array part */
-	na = computesizes(nums, &nasize);
-	/* resize the table to new computed sizes */
-	table_resize(ks, t, nasize, totaluse - na);
-}
-
-
-static ktap_tnode *getfreepos(ktap_table *t)
-{
-	while (t->lastfree > t->node) {
-		t->lastfree--;
-		if (isnil(gkey(t->lastfree)))
-			return t->lastfree;
-	}
-	return NULL;  /* could not find a free place */
-}
-
-
-static ktap_value *table_newkey(ktap_state *ks, ktap_table *t,
-				const ktap_value *key)
-{
-	ktap_tnode *mp;
-	ktap_value newkey;
-
-	mp = mainposition(t, key);
-	if (!isnil(gval(mp)) || isdummy(mp)) {  /* main position is taken? */
-		ktap_tnode *othern;
-		ktap_tnode *n = getfreepos(t);  /* get a free place */
-		if (n == NULL) {  /* cannot find a free place? */
-			rehash(ks, t, key);  /* grow table */
-			/* whatever called 'newkey' take care of TM cache and GC barrier */
-			return table_set(ks, t, key);  /* insert key into grown table */
-		}
-
-		othern = mainposition(t, gkey(mp));
-		if (othern != mp) {  /* is colliding node out of its main position? */
-			/* yes; move colliding node into free position */
-			while (gnext(othern) != mp)
-				othern = gnext(othern);  /* find previous */
-			gnext(othern) = n;  /* redo the chain with `n' in place of `mp' */
-			*n = *mp;  /* copy colliding node into free pos. (mp->next also goes) */
-			gnext(mp) = NULL;  /* now `mp' is free */
-			setnilvalue(gval(mp));
-		} else {  /* colliding node is in its own main position */
-			/* new node will go into free position */
-			gnext(n) = gnext(mp);  /* chain new position */
-			gnext(mp) = n;
-			mp = n;
-		}
-	}
-
-	/* special handling for cloneable object, maily for btrace object */
-	if (ttisclone(key))
-		kp_objclone(ks, key, &newkey, &t->gclist);
-	else
-		newkey = *key;
-
-	setobj(gkey(mp), &newkey);
-	return gval(mp);
-}
-
-
-/*
- * search function for short strings
- */
-static const ktap_value *table_getstr(ktap_table *t, ktap_string *key)
-{
-	ktap_tnode *n = hashstr(t, key);
-
-	do {  /* check whether `key' is somewhere in the chain */
-		if (ttisshrstring(gkey(n)) && eqshrstr(rawtsvalue(gkey(n)),
-								key))
-			return gval(n);  /* that's it */
-		else
-			n = gnext(n);
-	} while (n);
-
-	return ktap_nilobject;
-}
-
-
-/*
- * main search function
- */
-static const ktap_value *table_get(ktap_table *t, const ktap_value *key)
-{
-	switch (ttype(key)) {
-	case KTAP_TNIL:
-		return ktap_nilobject;
-	case KTAP_TSHRSTR:
-		return table_getstr(t, rawtsvalue(key));
-	case KTAP_TNUMBER: {
-		ktap_number n = nvalue(key);
-		int k = (int)n;
-		if ((ktap_number)k == nvalue(key)) /* index is int? */
-			return table_getint(t, k);  /* use specialized version */
-		/* else go through */
-	}
-	default: {
-		ktap_tnode *n = mainposition(t, key);
-		do {  /* check whether `key' is somewhere in the chain */
-			if (rawequalobj(gkey(n), key))
-				return gval(n);  /* that's it */
-			else
-				n = gnext(n);
-		} while (n);
-
-		return ktap_nilobject;
-	}
-	}
-}
-
-const ktap_value *kp_table_get(ktap_table *t, const ktap_value *key)
-{
-	const ktap_value *val;
-	unsigned long __maybe_unused flags;
-
-	kp_table_lock(t);
-	val = table_get(t, key);
-	kp_table_unlock(t);
-
-	return val;
-}
-
-static ktap_value *table_set(ktap_state *ks, ktap_table *t,
-			     const ktap_value *key)
-{
-	const ktap_value *p = table_get(t, key);
-
-	if (p != ktap_nilobject)
-		return (ktap_value *)p;
-	else
-		return table_newkey(ks, t, key);
-}
-
-void kp_table_setvalue(ktap_state *ks, ktap_table *t,
-		       const ktap_value *key, ktap_value *val)
-{
-	unsigned long __maybe_unused flags;
-
-	if (isnil(key)) {
-		kp_printf(ks, "table index is nil\n");
-		kp_exit(ks);
-		return;
-	}
-
-	kp_table_lock(t);
-	setobj(table_set(ks, t, key), val);
-	kp_table_unlock(t);
-}
-
-static void table_setint(ktap_state *ks, ktap_table *t, int key, ktap_value *v)
-{
-	const ktap_value *p;
-	ktap_value *cell;
-
-	p = table_getint(t, key);
-
-	if (p != ktap_nilobject)
-		cell = (ktap_value *)p;
-	else {
-		ktap_value k;
-		setnvalue(&k, key);
-		cell = table_newkey(ks, t, &k);
-	}
-
-	setobj(cell, v);
-}
-
-void kp_table_setint(ktap_state *ks, ktap_table *t, int key, ktap_value *val)
-{
-	unsigned long __maybe_unused flags;
-
-	kp_table_lock(t);
-	table_setint(ks, t, key, val);
-	kp_table_unlock(t);
-}
-
-void kp_table_atomic_inc(ktap_state *ks, ktap_table *t, ktap_value *key, int n)
-{
-	unsigned long __maybe_unused flags;
-	ktap_value *v;
-
-	if (isnil(key)) {
-		kp_printf(ks, "table index is nil\n");
-		kp_exit(ks);
-		return;
-	}
-
-	kp_table_lock(t);
-
-	v = table_set(ks, t, key);
-	if (isnil(v)) {
-		setnvalue(v, n);
-	} else
-		setnvalue(v, nvalue(v) + n);
-
-	kp_table_unlock(t);
-}
-
-int kp_table_length(ktap_state *ks, ktap_table *t)
-{
-	unsigned long __maybe_unused flags;
-	int i, len = 0;
-
-	kp_table_lock(t);
-
-	for (i = 0; i < t->sizearray; i++) {
-		ktap_value *v = &t->array[i];
-
-		if (isnil(v))
-			continue;
-		len++;
-	}
-
-	for (i = 0; i < sizenode(t); i++) {
-		ktap_tnode *n = &t->node[i];
-
-		if (isnil(gkey(n)))
-			continue;
-
-		len++;
-	}
-	
-	kp_table_unlock(t);
-	return len;
-}
-
-void kp_table_free(ktap_state *ks, ktap_table *t)
-{
-	if (t->sizearray > 0)
-		kp_free(ks, t->array);
-	if (!isdummy(t->node))
-		kp_free(ks, t->node);
-
-	kp_free_gclist(ks, t->gclist);
-	kp_free(ks, t);
-}
-
-void kp_table_dump(ktap_state *ks, ktap_table *t)
-{
-	int i, count = 0;
-
-	kp_puts(ks, "{");
-	for (i = 0; i < t->sizearray; i++) {
-		ktap_value *v = &t->array[i];
-
-		if (isnil(v))
-			continue;
-
-		if (count)
-			kp_puts(ks, ", ");
-
-		kp_printf(ks, "(%d: ", i + 1);
-		kp_showobj(ks, v);
-		kp_puts(ks, ")");
-		count++;
-	}
-
-	for (i = 0; i < sizenode(t); i++) {
-		ktap_tnode *n = &t->node[i];
-
-		if (isnil(gkey(n)))
-			continue;
-
-		if (count)
-			kp_puts(ks, ", ");
-
-		kp_puts(ks, "(");
-		kp_showobj(ks, gkey(n));
-		kp_puts(ks, ": ");
-		kp_showobj(ks, gval(n));
-		kp_puts(ks, ")");
-		count++;
-	}
-	kp_puts(ks, "}");
-}
-
-/*
- * table-clear only set nil of all elements, not free t->array and nodes.
- * we assume user will reuse table soon after clear table, so reserve array
- * and nodes will avoid memory allocation when insert key-value again.
- */
-void kp_table_clear(ktap_state *ks, ktap_table *t)
-{
-	unsigned long __maybe_unused flags;
-	int i;
-
-	kp_table_lock(t);
-
-	for (i = 0; i < t->sizearray; i++) {
-		ktap_value *v = &t->array[i];
-
-		if (isnil(v))
-			continue;
-
-		setnilvalue(v);
-	}
-
-	for (i = 0; i < sizenode(t); i++) {
-		ktap_tnode *n = &t->node[i];
-
-		if (isnil(gkey(n)))
-			continue;
-
-		setnilvalue(gkey(n));
-		setnilvalue(gval(n));
-	}
-
-	kp_table_unlock(t);
-}
-
-#ifdef __KERNEL__
-static void string_convert(char *output, const char *input)
-{
-	if (strlen(input) > 32) {
-		strncpy(output, input, 32-4);
-		memset(output + 32-4, '.', 3);
-	} else
-		memcpy(output, input, strlen(input));
-}
-
-struct table_hist_record {
-	ktap_value key;
-	ktap_value val;
-};
-
-static int hist_record_cmp(const void *r1, const void *r2)
-{
-	const struct table_hist_record *i = r1;
-	const struct table_hist_record *j = r2;
-
-	if ((nvalue(&i->val) == nvalue(&j->val))) {
-		return 0;
-	} else if ((nvalue(&i->val) < nvalue(&j->val))) {
-		return 1;
-	} else
-		return -1;
-}
-
-static int kp_aggracc_read(ktap_aggraccval *acc);
-
-/* histogram: key should be number or string, value must be number */
-static void table_histdump(ktap_state *ks, ktap_table *t, int shownums)
-{
-	struct table_hist_record *thr;
-	unsigned long __maybe_unused flags;
-	char dist_str[40];
-	int i, ratio, total = 0, count = 0, top_num, is_kernel_address = 0;
-	int size, num;
-
-	size = sizeof(*thr) * (t->sizearray + sizenode(t));
-	thr = kp_malloc(ks, size);
-	if (!thr) {
-		kp_error(ks, "Cannot allocate %d of histogram memory", size);
-		return;
-	}
-
-	kp_table_lock(t);
-
-	for (i = 0; i < t->sizearray; i++) {
-		ktap_value *v = &t->array[i];
-
-		if (isnil(v))
-			continue;
-
-		if (ttisnumber(v))
-			num = nvalue(v);
-		else if (ttisaggracc(v))
-			num = kp_aggracc_read(aggraccvalue(v));
-		else {
-			kp_table_unlock(t);
-			goto error;
-		}
-
-		setnvalue(&thr[count].key, i + 1);
-		setnvalue(&thr[count].val, num);
-		count++;
-		total += num;
-	}
-
-	for (i = 0; i < sizenode(t); i++) {
-		ktap_tnode *n = &t->node[i];
-		ktap_value *v = gval(n);
-
-		if (isnil(gkey(n)))
-			continue;
-
-		if (ttisnumber(v))
-			num = nvalue(v);
-		else if (ttisaggracc(v))
-			num = kp_aggracc_read(aggraccvalue(v));
-		else {
-			kp_table_unlock(t);
-			goto error;
-		}
-
-		setobj(&thr[count].key, gkey(n));
-		setnvalue(&thr[count].val, num);
-		count++;
-		total += num;
-	}
-
-	kp_table_unlock(t);
-
-	sort(thr, count, sizeof(struct table_hist_record),
-	     hist_record_cmp, NULL);
-
-	dist_str[sizeof(dist_str) - 1] = '\0';
-
-	/* check the first key is a kernel text symbol or not */
-	if (ttisnumber(&thr[0].key)) {
-		char str[KSYM_SYMBOL_LEN];
-
-		SPRINT_SYMBOL(str, nvalue(&thr[0].key));
-		if (str[0] != '0' || str[1] != 'x')
-			is_kernel_address = 1;
-	}
-
-	top_num = min(shownums, count);
-	for (i = 0; i < top_num; i++) {
-		ktap_value *key = &thr[i].key;
-		ktap_value *val = &thr[i].val;
-
-		memset(dist_str, ' ', sizeof(dist_str) - 1);
-		ratio = (nvalue(val) * (sizeof(dist_str) - 1)) / total;
-		memset(dist_str, '@', ratio);
-
-		if (ttisstring(key)) {
-			char buf[32 + 1] = {0};
-
-			string_convert(buf, svalue(key));
-			kp_printf(ks, "%32s |%s%-7d\n", buf, dist_str,
-				      nvalue(val));
-		} else if (ttisnumber(key)) {
-			char str[KSYM_SYMBOL_LEN];
-			char buf[32 + 1] = {0};
-
-			if (is_kernel_address) {
-				/* suppose it's a symbol, fix it in future */
-				SPRINT_SYMBOL(str, nvalue(key));
-				string_convert(buf, str);
-				kp_printf(ks, "%32s |%s%-7d\n", buf, dist_str,
-						nvalue(val));
-			} else {
-				kp_printf(ks, "%32d |%s%-7d\n", nvalue(key),
-						dist_str, nvalue(val));
-			}
-		}
-	}
-
-	if (count > shownums)
-		kp_printf(ks, "%32s |\n", "...");
-
-	goto out;
-
- error:
-	kp_puts(ks, "error: table histogram only handle "
-			" (key: string/number val: number)\n");
- out:
-	kp_free(ks, thr);
-}
-
-#define HISTOGRAM_DEFAULT_TOP_NUM	20
-
-#define DISTRIBUTION_STR "------------- Distribution -------------"
-void kp_table_histogram(ktap_state *ks, ktap_table *t)
-{
-	kp_printf(ks, "%32s%s%s\n", "value ", DISTRIBUTION_STR, " count");
-	table_histdump(ks, t, HISTOGRAM_DEFAULT_TOP_NUM);
-}
-
-/*
- * Aggregation Table
- */
-
-static ktap_table *table_new2(ktap_state *ks, ktap_gcobject **list)
-{
-	ktap_table *t = &kp_newobject(ks, KTAP_TTABLE, sizeof(ktap_table),
-				      list)->h;
-	t->flags = (u8)(~0);
-	t->array = NULL;
-	t->sizearray = 0;
-	t->node = (ktap_tnode *)dummynode;
-	t->gclist = NULL;
-	setnodevector(ks, t, 0);
-
-	kp_table_lock_init(t);
-	return t;
-}
-
-static int kp_aggracc_read(ktap_aggraccval *acc)
-{
-	switch (acc->type) {
-	case AGGREGATION_TYPE_COUNT:
-	case AGGREGATION_TYPE_MAX:
-	case AGGREGATION_TYPE_MIN:
-	case AGGREGATION_TYPE_SUM:
-		return acc->val;
-	case AGGREGATION_TYPE_AVG:
-		return acc->val / acc->more;
-	default:
-		return 0;
-	}
-
-}
-
-void kp_aggraccval_dump(ktap_state *ks, ktap_aggraccval *acc)
-{
-	switch (acc->type) {
-	case AGGREGATION_TYPE_COUNT:
-	case AGGREGATION_TYPE_MAX:
-	case AGGREGATION_TYPE_MIN:
-	case AGGREGATION_TYPE_SUM:
-		kp_printf(ks, "%d", acc->val);
-		break;
-	case AGGREGATION_TYPE_AVG:
-		kp_printf(ks, "%d", acc->val / acc->more);
-		break;
-	default:
-		break;
-	}
-}
-
-static void synth_acc(ktap_aggraccval *acc1, ktap_aggraccval *acc2)
-{
-	switch (acc1->type) {
-	case AGGREGATION_TYPE_COUNT:
-		acc2->val += acc1->val;
-		break;
-	case AGGREGATION_TYPE_MAX:
-		acc2->val = max(acc1->val, acc2->val);
-		break;
-	case AGGREGATION_TYPE_MIN:
-		acc2->val = min(acc1->val, acc2->val);
-		break;
-	case AGGREGATION_TYPE_SUM:
-		acc2->val += acc1->val;
-		break;
-	case AGGREGATION_TYPE_AVG:
-		acc2->val += acc1->val;
-		acc2->more += acc1->more;
-		break;
-	default:
-		break;
-	}
-}
-
-static ktap_aggraccval *get_accval(ktap_state *ks, int type,
-				   ktap_gcobject **list)
-{
-	ktap_aggraccval *acc;
-
-	acc = &kp_newobject(ks, KTAP_TAGGRACCVAL, sizeof(ktap_aggraccval),
-				list)->acc;
-	acc->type = type;
-	acc->val = 0;
-	acc->more = 0;
-	return acc;
-}
-
-static void synth_accval(ktap_state *ks, ktap_value *o1, ktap_value *o2,
-			 ktap_gcobject **list)
-{
-	ktap_aggraccval *acc;
-
-	if (isnil(o2)) {
-		acc = get_accval(ks, aggraccvalue(o1)->type, list);
-		acc->val = aggraccvalue(o1)->val;
-		acc->more = aggraccvalue(o1)->more;
-		setaggraccvalue(o2, acc);
-		return;
-	}
-
-	synth_acc(aggraccvalue(o1), aggraccvalue(o2));
-}
-
-static void move_table(ktap_state *ks, ktap_table *t1, ktap_table *t2)
-{
-	ktap_value *newv;
-	ktap_value n;
-	int i;
-
-	for (i = 0; i < t1->sizearray; i++) {
-		ktap_value *v = &t1->array[i];
-
-		if (isnil(v))
-			continue;
-
-		setnvalue(&n, i);
-
-		newv = table_set(ks, t2, &n);
-		synth_accval(ks, v, newv, &t2->gclist);
-	}
-
-	for (i = 0; i < sizenode(t1); i++) {
-		ktap_tnode *node = &t1->node[i];
-
-		if (isnil(gkey(node)))
-			continue;
-
-		newv = table_set(ks, t2, gkey(node));
-		synth_accval(ks, gval(node), newv, &t2->gclist);
-	}
-}
-
-ktap_table *kp_aggrtable_synthesis(ktap_state *ks, ktap_aggrtable *ah)
-{
-	ktap_table *synth_tbl;
-	int cpu;
-
-	synth_tbl = table_new2(ks, &ah->gclist);
-
-	for_each_possible_cpu(cpu) {
-		ktap_table **t = per_cpu_ptr(ah->pcpu_tbl, cpu);
-		move_table(ks, *t, synth_tbl);
-	}
-
-	return synth_tbl;
-}
-
-void kp_aggrtable_dump(ktap_state *ks, ktap_aggrtable *ah)
-{
-	kp_table_dump(ks, kp_aggrtable_synthesis(ks, ah));
-}
-
-ktap_aggrtable *kp_aggrtable_new(ktap_state *ks)
-{
-	ktap_aggrtable *ah;
-	int cpu;
-
-	ah = &kp_newobject(ks, KTAP_TAGGRTABLE, sizeof(ktap_aggrtable),
-			NULL)->ah;
-	ah->pcpu_tbl = alloc_percpu(ktap_table *);
-	ah->gclist = NULL;
-
-	for_each_possible_cpu(cpu) {
-		ktap_table **t = per_cpu_ptr(ah->pcpu_tbl, cpu);
-		*t = table_new2(ks, &ah->gclist);
-	}	
-
-	return ah;
-}
-
-void kp_aggrtable_free(ktap_state *ks, ktap_aggrtable *ah)
-{
-	free_percpu(ah->pcpu_tbl);
-	kp_free_gclist(ks, ah->gclist);
-	kp_free(ks, ah);
-}
-
-static
-void handle_aggr_count(ktap_state *ks, ktap_aggrtable *ah, ktap_value *key)
-{
-	ktap_table *t = *__this_cpu_ptr(ah->pcpu_tbl);
-	ktap_value *v = table_set(ks, t, key);
-	ktap_aggraccval *acc;
-
-	if (isnil(v)) {
-		acc = get_accval(ks, AGGREGATION_TYPE_COUNT, &t->gclist);
-		acc->val = 1;
-		setaggraccvalue(v, acc);
-		return;
-	}
-
-	acc = aggraccvalue(v);
-	acc->val += 1;
-}
-
-static 
-void handle_aggr_max(ktap_state *ks, ktap_aggrtable *ah, ktap_value *key)
-{
-	ktap_table *t = *__this_cpu_ptr(ah->pcpu_tbl);
-	ktap_value *v = table_set(ks, t, key);
-	ktap_aggraccval *acc;
-
-	if (isnil(v)) {
-		acc = get_accval(ks, AGGREGATION_TYPE_MAX, &t->gclist);
-		acc->val = ks->aggr_accval;
-		setaggraccvalue(v, acc);
-		return;
-	}
-
-	acc = aggraccvalue(v);
-	acc->val = max(acc->val, ks->aggr_accval);
-}
-
-static 
-void handle_aggr_min(ktap_state *ks, ktap_aggrtable *ah, ktap_value *key)
-{
-	ktap_table *t = *__this_cpu_ptr(ah->pcpu_tbl);
-	ktap_value *v = table_set(ks, t, key);
-	ktap_aggraccval *acc;
-
-	if (isnil(v)) {
-		acc = get_accval(ks, AGGREGATION_TYPE_MIN, &t->gclist);
-		acc->val = ks->aggr_accval;
-		setaggraccvalue(v, acc);
-		return;
-	}
-
-	acc = aggraccvalue(v);
-	acc->val = min(acc->val, ks->aggr_accval);
-}
-
-static 
-void handle_aggr_sum(ktap_state *ks, ktap_aggrtable *ah, ktap_value *key)
-{
-	ktap_table *t = *__this_cpu_ptr(ah->pcpu_tbl);
-	ktap_value *v = table_set(ks, t, key);
-	ktap_aggraccval *acc;
-
-	if (isnil(v)) {
-		acc = get_accval(ks, AGGREGATION_TYPE_SUM, &t->gclist);
-		acc->val = ks->aggr_accval;
-		setaggraccvalue(v, acc);
-		return;
-	}
-
-	acc = aggraccvalue(v);
-	acc->val += ks->aggr_accval;
-}
-
-static 
-void handle_aggr_avg(ktap_state *ks, ktap_aggrtable *ah, ktap_value *key)
-{
-	ktap_table *t = *__this_cpu_ptr(ah->pcpu_tbl);
-	ktap_value *v = table_set(ks, t, key);
-	ktap_aggraccval *acc;
-
-	if (isnil(v)) {
-		acc = get_accval(ks, AGGREGATION_TYPE_AVG, &t->gclist);
-		acc->val = ks->aggr_accval;
-		acc->more = 1;
-		setaggraccvalue(v, acc);
-		return;
-	}
-
-	acc = aggraccvalue(v);
-	acc->val += ks->aggr_accval;
-	acc->more++;
-}
-
-typedef void (*aggr_func_t)(ktap_state *ks, ktap_aggrtable *ah, ktap_value *k);
-static aggr_func_t kp_aggregation_handler[] = {
-	handle_aggr_count,
-	handle_aggr_max,
-	handle_aggr_min,
-	handle_aggr_sum,
-	handle_aggr_avg
-};
-
-void kp_aggrtable_set(ktap_state *ks, ktap_aggrtable *ah,
-			ktap_value *key, ktap_value *val)
-{
-	if (unlikely(!ttisaggrval(val))) {
-		kp_error(ks, "set invalid value to aggregation table\n");
-		return;
-	}
-
-	kp_aggregation_handler[nvalue(val)](ks, ah, key);
-}
-
-
-void kp_aggrtable_get(ktap_state *ks, ktap_aggrtable *ah, ktap_value *key,
-		      ktap_value *val)
-{
-	ktap_aggraccval acc; /* in stack */
-	const ktap_value *v;
-	int cpu;
-
-	acc.val = -1;
-	acc.more = -1;
-
-	for_each_possible_cpu(cpu) {
-		ktap_table **t = per_cpu_ptr(ah->pcpu_tbl, cpu);
-
-		v = table_get(*t, key);
-		if (isnil(v))
-			continue;
-
-		if (acc.more == -1) {
-			acc = *aggraccvalue(v);
-			continue;
-		}
-
-		synth_acc(aggraccvalue(v), &acc);
-	}
-
-	if (acc.more == -1) {
-		setnilvalue(val);
-	} else {
-		setnvalue(val, kp_aggracc_read(&acc));
-	}
-}
-
-void kp_aggrtable_histogram(ktap_state *ks, ktap_aggrtable *ah)
-{
-	kp_table_histogram(ks, kp_aggrtable_synthesis(ks, ah));
-}
-#endif
diff --git a/drivers/staging/ktap/interpreter/transport.c b/drivers/staging/ktap/interpreter/transport.c
deleted file mode 100644
index 4cd3662b792a..000000000000
--- a/drivers/staging/ktap/interpreter/transport.c
+++ /dev/null
@@ -1,636 +0,0 @@
-/*
- * transport.c - ktap transport functionality
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <linux/debugfs.h>
-#include <linux/ftrace_event.h>
-#include <linux/stacktrace.h>
-#include <linux/clocksource.h>
-#include <asm/uaccess.h>
-#include "../include/ktap.h"
-
-struct ktap_trace_iterator {
-	struct ring_buffer	*buffer;
-	int			print_timestamp;
-	void			*private;
-
-	struct trace_iterator	iter;
-};
-
-enum ktap_trace_type {
-	__TRACE_FIRST_TYPE = 0,
-
-	TRACE_FN = 1, /* must be same as ftrace definition in kernel */
-	TRACE_PRINT,
-	TRACE_BPUTS,
-	TRACE_STACK,
-	TRACE_USER_STACK,
-
-	__TRACE_LAST_TYPE,
-};
-
-#define KTAP_TRACE_ITER(iter)	\
-	container_of(iter, struct ktap_trace_iterator, iter)
-
-ssize_t trace_seq_to_user(struct trace_seq *s, char __user *ubuf, size_t cnt)
-{
-	int len;
-	int ret;
-
-	if (!cnt)
-		return 0;
-
-	if (s->len <= s->readpos)
-		return -EBUSY;
-
-	len = s->len - s->readpos;
-	if (cnt > len)
-		cnt = len;
-	ret = copy_to_user(ubuf, s->buffer + s->readpos, cnt);
-	if (ret == cnt)
-		return -EFAULT;
-
-	cnt -= ret;
-
-	s->readpos += cnt;
-	return cnt;
-}
-
-int trace_seq_puts(struct trace_seq *s, const char *str)
-{
-	int len = strlen(str);
-
-	if (s->full)
-		return 0;
-
-	if (len > ((PAGE_SIZE - 1) - s->len)) {
-		s->full = 1;
-		return 0;
-	}
-
-	memcpy(s->buffer + s->len, str, len);
-	s->len += len;
-
-	return len;
-}
-
-static int trace_empty(struct trace_iterator *iter)
-{
-	struct ktap_trace_iterator *ktap_iter = KTAP_TRACE_ITER(iter);
-	int cpu;
-
-	for_each_online_cpu(cpu) {
-		if (!ring_buffer_empty_cpu(ktap_iter->buffer, cpu))
-			return 0;
-	}
-
-	return 1;
-}
-
-static void trace_consume(struct trace_iterator *iter)
-{
-	struct ktap_trace_iterator *ktap_iter = KTAP_TRACE_ITER(iter);
-
-	ring_buffer_consume(ktap_iter->buffer, iter->cpu, &iter->ts,
-			    &iter->lost_events);
-}
-
-unsigned long long ns2usecs(cycle_t nsec)
-{
-	nsec += 500;
-	do_div(nsec, 1000);
-	return nsec;
-}
-
-static int trace_print_timestamp(struct trace_iterator *iter)
-{
-	struct trace_seq *s = &iter->seq;
-	unsigned long long t;
-	unsigned long secs, usec_rem;
-
-	t = ns2usecs(iter->ts);
-	usec_rem = do_div(t, USEC_PER_SEC);
-	secs = (unsigned long)t;
-
-	return trace_seq_printf(s, "%5lu.%06lu: ", secs, usec_rem);
-}
-
-/* todo: export kernel function ftrace_find_event in future, and make faster */
-static struct trace_event *(*ftrace_find_event)(int type);
-
-static enum print_line_t print_trace_fmt(struct trace_iterator *iter)
-{
-	struct ktap_trace_iterator *ktap_iter = KTAP_TRACE_ITER(iter);
-	struct trace_entry *entry = iter->ent;
-	struct trace_event *ev;
-
-	ev = ftrace_find_event(entry->type);
-
-	if (ktap_iter->print_timestamp && !trace_print_timestamp(iter))
-		return TRACE_TYPE_PARTIAL_LINE;
-
-	if (ev) {
-		int ret = ev->funcs->trace(iter, 0, ev);
-
-		/* overwrite '\n' at the ending */
-		iter->seq.buffer[iter->seq.len - 1] = '\0';
-		iter->seq.len--;
-		return ret;
-	}
-
-	return TRACE_TYPE_PARTIAL_LINE;
-}
-
-static enum print_line_t print_trace_stack(struct trace_iterator *iter)
-{
-	struct trace_entry *entry = iter->ent;
-	struct stack_trace trace;
-	char str[KSYM_SYMBOL_LEN];
-	int i;
-
-	trace.entries = (unsigned long *)(entry + 1);
-	trace.nr_entries = (iter->ent_size - sizeof(*entry)) /
-			   sizeof(unsigned long);
-
-	if (!trace_seq_puts(&iter->seq, "<stack trace>\n"))
-		return TRACE_TYPE_PARTIAL_LINE;
-
-	for (i = 0; i < trace.nr_entries; i++) {
-		unsigned long p = trace.entries[i];
-
-		if (p == ULONG_MAX)
-			break;
-
-		sprint_symbol(str, p);
-		if (!trace_seq_printf(&iter->seq, " => %s\n", str))
-			return TRACE_TYPE_PARTIAL_LINE;
-	}
-
-	return TRACE_TYPE_HANDLED;
-}
-
-struct ktap_ftrace_entry {
-	struct trace_entry entry;
-	unsigned long ip;
-	unsigned long parent_ip;
-};
-
-static enum print_line_t print_trace_fn(struct trace_iterator *iter)
-{
-	struct ktap_trace_iterator *ktap_iter = KTAP_TRACE_ITER(iter);
-	struct ktap_ftrace_entry *field = (struct ktap_ftrace_entry *)iter->ent;
-	char str[KSYM_SYMBOL_LEN];
-
-	if (ktap_iter->print_timestamp && !trace_print_timestamp(iter))
-		return TRACE_TYPE_PARTIAL_LINE;
-
-	sprint_symbol(str, field->ip);
-	if (!trace_seq_puts(&iter->seq, str))
-		return TRACE_TYPE_PARTIAL_LINE;
-
-	if (!trace_seq_puts(&iter->seq, " <- "))
-		return TRACE_TYPE_PARTIAL_LINE;
-
-	sprint_symbol(str, field->parent_ip);
-	if (!trace_seq_puts(&iter->seq, str))
-		return TRACE_TYPE_PARTIAL_LINE;
-
-	return TRACE_TYPE_HANDLED;
-}
-
-static enum print_line_t print_trace_bputs(struct trace_iterator *iter)
-{
-	if (!trace_seq_puts(&iter->seq,
-			    (const char *)(*(unsigned long *)(iter->ent + 1))))
-		return TRACE_TYPE_PARTIAL_LINE;
-
-	return TRACE_TYPE_HANDLED;
-}
-
-static enum print_line_t print_trace_line(struct trace_iterator *iter)
-{
-	struct trace_entry *entry = iter->ent;
-	char *str = (char *)(entry + 1);
-
-	if (entry->type == TRACE_PRINT) {
-		if (!trace_seq_printf(&iter->seq, "%s", str))
-			return TRACE_TYPE_PARTIAL_LINE;
-
-		return TRACE_TYPE_HANDLED;
-	}
-
-	if (entry->type == TRACE_BPUTS)
-		return print_trace_bputs(iter);
-
-	if (entry->type == TRACE_STACK)
-		return print_trace_stack(iter);
-
-	if (entry->type == TRACE_FN)
-		return print_trace_fn(iter);
-
-	return print_trace_fmt(iter);
-}
-
-static struct trace_entry *
-peek_next_entry(struct trace_iterator *iter, int cpu, u64 *ts,
-		unsigned long *lost_events)
-{
-	struct ktap_trace_iterator *ktap_iter = KTAP_TRACE_ITER(iter);
-	struct ring_buffer_event *event;
-
-	event = ring_buffer_peek(ktap_iter->buffer, cpu, ts, lost_events);
-	if (event) {
-		iter->ent_size = ring_buffer_event_length(event);
-		return ring_buffer_event_data(event);
-	}
-
-	return NULL;
-}
-
-static struct trace_entry *
-__find_next_entry(struct trace_iterator *iter, int *ent_cpu,
-		  unsigned long *missing_events, u64 *ent_ts)
-{
-	struct ktap_trace_iterator *ktap_iter = KTAP_TRACE_ITER(iter);
-	struct ring_buffer *buffer = ktap_iter->buffer;
-	struct trace_entry *ent, *next = NULL;
-	unsigned long lost_events = 0, next_lost = 0;
-	u64 next_ts = 0, ts;
-	int next_cpu = -1;
-	int next_size = 0;
-	int cpu;
-
-	for_each_online_cpu(cpu) {
-		if (ring_buffer_empty_cpu(buffer, cpu))
-			continue;
-
-		ent = peek_next_entry(iter, cpu, &ts, &lost_events);
-		/*
-		 * Pick the entry with the smallest timestamp:
-		 */
-		if (ent && (!next || ts < next_ts)) {
-			next = ent;
-			next_cpu = cpu;
-			next_ts = ts;
-			next_lost = lost_events;
-			next_size = iter->ent_size;
-		}
-	}
-
-	iter->ent_size = next_size;
-
-	if (ent_cpu)
-		*ent_cpu = next_cpu;
-
-	if (ent_ts)
-		*ent_ts = next_ts;
-
-	if (missing_events)
-		*missing_events = next_lost;
-
-	return next;
-}
-
-/* Find the next real entry, and increment the iterator to the next entry */
-static void *trace_find_next_entry_inc(struct trace_iterator *iter)
-{
-	iter->ent = __find_next_entry(iter, &iter->cpu,
-				      &iter->lost_events, &iter->ts);
-	if (iter->ent)
-		iter->idx++;
-
-	return iter->ent ? iter : NULL;
-}
-
-static void poll_wait_pipe(void)
-{
-	set_current_state(TASK_INTERRUPTIBLE);
-	/* sleep for 100 msecs, and try again. */
-	schedule_timeout(HZ / 10);
-}
-
-static int tracing_wait_pipe(struct file *filp)
-{
-	struct trace_iterator *iter = filp->private_data;
-	struct ktap_trace_iterator *ktap_iter = KTAP_TRACE_ITER(iter);
-	ktap_state *ks = ktap_iter->private;
-
-	while (trace_empty(iter)) {
-
-		if ((filp->f_flags & O_NONBLOCK)) {
-			return -EAGAIN;
-		}
-
-		mutex_unlock(&iter->mutex);
-
-		poll_wait_pipe();
-
-		mutex_lock(&iter->mutex);
-
-		if (G(ks)->wait_user && trace_empty(iter))
-			return -EINTR;
-	}
-
-	return 1;
-}
-
-static ssize_t
-tracing_read_pipe(struct file *filp, char __user *ubuf, size_t cnt,
-		  loff_t *ppos)
-{
-	struct trace_iterator *iter = filp->private_data;
-	ssize_t sret;
-
-	/* return any leftover data */
-	sret = trace_seq_to_user(&iter->seq, ubuf, cnt);
-	if (sret != -EBUSY)
-		return sret;
-	/*
-	 * Avoid more than one consumer on a single file descriptor
-	 * This is just a matter of traces coherency, the ring buffer itself
-	 * is protected.
-	 */
-	mutex_lock(&iter->mutex);
-
-waitagain:
-	sret = tracing_wait_pipe(filp);
-	if (sret <= 0)
-		goto out;
-
-	/* stop when tracing is finished */
-	if (trace_empty(iter)) {
-		sret = 0;
-		goto out;
-	}
-
-	if (cnt >= PAGE_SIZE)
-		cnt = PAGE_SIZE - 1;
-
-	/* reset all but tr, trace, and overruns */
-	memset(&iter->seq, 0,
-	       sizeof(struct trace_iterator) -
-	       offsetof(struct trace_iterator, seq));
-	iter->pos = -1;
-
-	while (trace_find_next_entry_inc(iter) != NULL) {
-		enum print_line_t ret;
-		int len = iter->seq.len;
-
-		ret = print_trace_line(iter);
-		if (ret == TRACE_TYPE_PARTIAL_LINE) {
-			/* don't print partial lines */
-			iter->seq.len = len;
-			break;
-		}
-		if (ret != TRACE_TYPE_NO_CONSUME)
-			trace_consume(iter);
-
-		if (iter->seq.len >= cnt)
-			break;
-
-		/*
-		 * Setting the full flag means we reached the trace_seq buffer
-		 * size and we should leave by partial output condition above.
-		 * One of the trace_seq_* functions is not used properly.
-		 */
-		WARN_ONCE(iter->seq.full, "full flag set for trace type %d",
-			  iter->ent->type);
-	}
-
-	/* Now copy what we have to the user */
-	sret = trace_seq_to_user(&iter->seq, ubuf, cnt);
-	if (iter->seq.readpos >= iter->seq.len)
-		trace_seq_init(&iter->seq);
-
-	/*
-	 * If there was nothing to send to user, in spite of consuming trace
-	 * entries, go back to wait for more entries.
-	 */
-	if (sret == -EBUSY)
-		goto waitagain;
-
-out:
-	mutex_unlock(&iter->mutex);
-
-	return sret;
-}
-
-static int tracing_open_pipe(struct inode *inode, struct file *filp)
-{
-	struct ktap_trace_iterator *ktap_iter;
-	ktap_state *ks = inode->i_private;
-
-	/* create a buffer to store the information to pass to userspace */
-	ktap_iter = kzalloc(sizeof(*ktap_iter), GFP_KERNEL);
-	if (!ktap_iter)
-		return -ENOMEM;
-
-	ktap_iter->private = ks;
-	ktap_iter->buffer = G(ks)->buffer;
-	ktap_iter->print_timestamp = G(ks)->parm->print_timestamp;
-	mutex_init(&ktap_iter->iter.mutex);
-	filp->private_data = &ktap_iter->iter;
-
-	nonseekable_open(inode, filp);
-
-	return 0;
-}
-
-static int tracing_release_pipe(struct inode *inode, struct file *file)
-{
-	struct trace_iterator *iter = file->private_data;
-	struct ktap_trace_iterator *ktap_iter = KTAP_TRACE_ITER(iter);
-
-	mutex_destroy(&iter->mutex);
-	kfree(ktap_iter);
-	return 0;
-}
-
-static const struct file_operations tracing_pipe_fops = {
-	.open		= tracing_open_pipe,
-	.read		= tracing_read_pipe,
-	.splice_read	= NULL,
-	.release	= tracing_release_pipe,
-	.llseek		= no_llseek,
-};
-
-/*
- * print_backtrace maybe called from ktap mainthread, so be
- * care on race with event closure thread.
- *
- * preempt disabled in ring_buffer_lock_reserve
- *
- * The implementation is similar with funtion __ftrace_trace_stack.
- */
-void kp_transport_print_backtrace(ktap_state *ks)
-{
-	struct ring_buffer *buffer = G(ks)->buffer;
-	struct ring_buffer_event *event;
-	struct trace_entry *entry;
-	int size;
-
-	size = KTAP_STACK_MAX_ENTRIES * sizeof(unsigned long);
-	event = ring_buffer_lock_reserve(buffer, sizeof(*entry) + size);
-	if (!event) {
-		return;
-	} else {
-		struct stack_trace trace;
-
-		entry = ring_buffer_event_data(event);
-		tracing_generic_entry_update(entry, 0, 0);
-		entry->type = TRACE_STACK;
-
-		trace.nr_entries = 0;
-		trace.skip = 10;
-		trace.max_entries = KTAP_STACK_MAX_ENTRIES;
-		trace.entries = (unsigned long *)(entry + 1);
-		save_stack_trace(&trace);
-
-		ring_buffer_unlock_commit(buffer, event);
-	}
-
-	return;
-}
-
-void kp_transport_event_write(ktap_state *ks, struct ktap_event *e)
-{
-	struct ring_buffer *buffer = G(ks)->buffer;
-	struct ring_buffer_event *event;
-	struct trace_entry *entry;
-
-	event = ring_buffer_lock_reserve(buffer, e->entry_size +
-					 sizeof(struct ftrace_event_call *));
-	if (!event) {
-		return;
-	} else {
-		entry = ring_buffer_event_data(event);
-
-		memcpy(entry, e->entry, e->entry_size);
-
-		ring_buffer_unlock_commit(buffer, event);
-	}
-}
-
-void kp_transport_write(ktap_state *ks, const void *data, size_t length)
-{
-	struct ring_buffer *buffer = G(ks)->buffer;
-	struct ring_buffer_event *event;
-	struct trace_entry *entry;
-	int size;
-
-	size = sizeof(struct trace_entry) + length;
-
-	event = ring_buffer_lock_reserve(buffer, size);
-	if (!event) {
-		return;
-	} else {
-		entry = ring_buffer_event_data(event);
-
-		tracing_generic_entry_update(entry, 0, 0);
-		entry->type = TRACE_PRINT;
-		memcpy(entry + 1, data, length);
-
-		ring_buffer_unlock_commit(buffer, event);
-	}
-}
-
-/* general print function */
-void kp_printf(ktap_state *ks, const char *fmt, ...)
-{
-	char buff[1024];
-	va_list args;
-	int len;
-
-	va_start(args, fmt);
-	len = vscnprintf(buff, 1024, fmt, args);
-	va_end(args);
-
-	buff[len] = '\0';
-	kp_transport_write(ks, buff, len + 1);
-}
-
-void __kp_puts(ktap_state *ks, const char *str)
-{
-	kp_transport_write(ks, str, strlen(str) + 1);
-}
-
-void __kp_bputs(ktap_state *ks, const char *str)
-{
-	struct ring_buffer *buffer = G(ks)->buffer;
-	struct ring_buffer_event *event;
-	struct trace_entry *entry;
-	int size;
-
-	size = sizeof(struct trace_entry) + sizeof(unsigned long *);
-
-	event = ring_buffer_lock_reserve(buffer, size);
-	if (!event) {
-		return;
-	} else {
-		entry = ring_buffer_event_data(event);
-
-		tracing_generic_entry_update(entry, 0, 0);
-		entry->type = TRACE_BPUTS;
-		*(unsigned long *)(entry + 1) = (unsigned long)str;
-
-		ring_buffer_unlock_commit(buffer, event);
-	}
-}
-
-void kp_transport_exit(ktap_state *ks)
-{
-	ring_buffer_free(G(ks)->buffer);
-	debugfs_remove(G(ks)->trace_pipe_dentry);
-}
-
-#define TRACE_BUF_SIZE_DEFAULT	1441792UL /* 16384 * 88 (sizeof(entry)) */
-
-int kp_transport_init(ktap_state *ks, struct dentry *dir)
-{
-	struct ring_buffer *buffer;
-	struct dentry *dentry;
-	char filename[32] = {0};
-
-	ftrace_find_event = (void *)kallsyms_lookup_name("ftrace_find_event");
-	if (!ftrace_find_event) {
-		printk("ktap: cannot lookup ftrace_find_event in kallsyms\n");
-		return -EINVAL;
-	}
-
-	buffer = ring_buffer_alloc(TRACE_BUF_SIZE_DEFAULT, RB_FL_OVERWRITE);
-	if (!buffer)
-		return -ENOMEM;
-
-	sprintf(filename, "trace_pipe_%d", (int)task_tgid_vnr(current));
-
-	dentry = debugfs_create_file(filename, 0444, dir,
-				     ks, &tracing_pipe_fops);
-	if (!dentry) {
-		pr_err("ktapvm: cannot create trace_pipe file in debugfs\n");
-		ring_buffer_free(buffer);
-		return -1;
-	}
-
-	G(ks)->buffer = buffer;
-	G(ks)->trace_pipe_dentry = dentry;
-
-	return 0;
-}
-
diff --git a/drivers/staging/ktap/interpreter/tstring.c b/drivers/staging/ktap/interpreter/tstring.c
deleted file mode 100644
index ce4c88df2cc8..000000000000
--- a/drivers/staging/ktap/interpreter/tstring.c
+++ /dev/null
@@ -1,287 +0,0 @@
-/*
- * tstring.c - ktap tstring data struction manipulation function
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
- *  - The part of code in this file is copied from lua initially.
- *  - lua's MIT license is compatible with GPL.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#ifdef __KERNEL__
-#include "../include/ktap.h"
-#else
-#include "../include/ktap_types.h"
-#endif
-
-#define STRING_MAXSHORTLEN	40
-
-int kp_tstring_cmp(const ktap_string *ls, const ktap_string *rs)
-{
-	const char *l = getstr(ls);
-	size_t ll = ls->tsv.len;
-	const char *r = getstr(rs);
-	size_t lr = rs->tsv.len;
-
-	for (;;) {
-		int temp = strcmp(l, r);
-		if (temp != 0)
-			return temp;
-		else {
-			/* strings are equal up to a `\0' */
-
-			/* index of first `\0' in both strings */
-			size_t len = strlen(l);
-
-			/* r is finished? */
-			if (len == lr)
-				return (len == ll) ? 0 : 1;
-			else if (len == ll)  /* l is finished? */
-				return -1;
-
-			/*
-			 * both strings longer than `len';
-			 * go on comparing (after the `\0')
-			 */
-			len++;
-			l += len; ll -= len; r += len; lr -= len;
-		}
-	}
-}
-
-/*
- * equality for long strings
- */
-int kp_tstring_eqlngstr(ktap_string *a, ktap_string *b)
-{
-	size_t len = a->tsv.len;
-
-	return (a == b) || ((len == b->tsv.len) &&
-		(memcmp(getstr(a), getstr(b), len) == 0));
-}
-
-/*
- * equality for strings
- */
-int kp_tstring_eqstr(ktap_string *a, ktap_string *b)
-{
-	return (a->tsv.tt == b->tsv.tt) &&
-	       (a->tsv.tt == KTAP_TSHRSTR ? eqshrstr(a, b) :
-				kp_tstring_eqlngstr(a, b));
-}
-
-#define STRING_HASHLIMIT	5
-unsigned int kp_string_hash(const char *str, size_t l, unsigned int seed)
-{
-	unsigned int h = seed ^ l;
-	size_t l1;
-	size_t step = (l >> STRING_HASHLIMIT) + 1;
-
-	for (l1 = l; l1 >= step; l1 -= step)
-		h = h ^ ((h<<5) + (h>>2) + (u8)(str[l1 - 1]));
-
-	return h;
-}
-
-
-/*
- * resizes the string table
- */
-void kp_tstring_resize(ktap_state *ks, int newsize)
-{
-	int i;
-	ktap_stringtable *tb = &G(ks)->strt;
-
-	if (newsize > tb->size) {
-		kp_realloc(ks, tb->hash, tb->size, newsize, ktap_gcobject *);
-
-	for (i = tb->size; i < newsize; i++)
-		tb->hash[i] = NULL;
-	}
-
-	/* rehash */
-	for (i = 0; i < tb->size; i++) {
-		ktap_gcobject *p = tb->hash[i];
-		tb->hash[i] = NULL;
-
-		while (p) {
-			ktap_gcobject *next = gch(p)->next;
-			unsigned int h = lmod(gco2ts(p)->hash, newsize);
-
-			gch(p)->next = tb->hash[h];
-			tb->hash[h] = p;
-			p = next;
-		}
-	}
-
-	if (newsize < tb->size) {
-		/* shrinking slice must be empty */
-		kp_realloc(ks, tb->hash, tb->size, newsize, ktap_gcobject *);
-	}
-
-	tb->size = newsize;
-}
-
-/*
- * creates a new string object
- */
-static ktap_string *createstrobj(ktap_state *ks, const char *str, size_t l,
-				 int tag, unsigned int h, ktap_gcobject **list)
-{
-	ktap_string *ts;
-	size_t totalsize;  /* total size of TString object */
-
-	totalsize = sizeof(ktap_string) + ((l + 1) * sizeof(char));
-	ts = &kp_newobject(ks, tag, totalsize, list)->ts;
-	ts->tsv.len = l;
-	ts->tsv.hash = h;
-	ts->tsv.extra = 0;
-	memcpy(ts + 1, str, l * sizeof(char));
-	((char *)(ts + 1))[l] = '\0';  /* ending 0 */
-	return ts;
-}
-
-/*
- * creates a new short string, inserting it into string table
- */
-static ktap_string *newshrstr(ktap_state *ks, const char *str, size_t l,
-			  unsigned int h)
-{
-	ktap_gcobject **list;
-	ktap_stringtable *tb = &G(ks)->strt;
-	ktap_string *s;
-
-	if (tb->nuse >= (int)tb->size)
-		kp_tstring_resize(ks, tb->size * 2);  /* too crowded */
-
-	list = &tb->hash[lmod(h, tb->size)];
-	s = createstrobj(ks, str, l, KTAP_TSHRSTR, h, list);
-	tb->nuse++;
-	return s;
-}
-
-#ifdef __KERNEL__
-static arch_spinlock_t tstring_lock =
-		(arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED;
-#endif
-
-/*
- * checks whether short string exists and reuses it or creates a new one
- */
-static ktap_string *internshrstr(ktap_state *ks, const char *str, size_t l)
-{
-	ktap_gcobject *o;
-	ktap_global_state *g = G(ks);
-	ktap_string *ts;
-	unsigned int h = kp_string_hash(str, l, g->seed);
-	unsigned long __maybe_unused flags;
-
-#ifdef __KERNEL__
-	local_irq_save(flags);
-	arch_spin_lock(&tstring_lock);
-#endif
-
-	for (o = g->strt.hash[lmod(h, g->strt.size)]; o != NULL;
-	     o = gch(o)->next) {
-		ts = rawgco2ts(o);
-
-		if (h == ts->tsv.hash && ts->tsv.len == l &&
-		   (memcmp(str, getstr(ts), l * sizeof(char)) == 0))
-			goto out;
-	}
-
-	ts = newshrstr(ks, str, l, h);  /* not found; create a new string */
-
- out:
-#ifdef __KERNEL__
-	arch_spin_unlock(&tstring_lock);
-	local_irq_restore(flags);
-#endif
-	return ts;
-}
-
-
-/*
- * new string (with explicit length)
- */
-ktap_string *kp_tstring_newlstr(ktap_state *ks, const char *str, size_t l)
-{
-	/* short string? */
-	if (l <= STRING_MAXSHORTLEN)
-		return internshrstr(ks, str, l);
-	else
-		return createstrobj(ks, str, l, KTAP_TLNGSTR, G(ks)->seed,
-				    NULL);
-}
-
-ktap_string *kp_tstring_newlstr_local(ktap_state *ks, const char *str, size_t l)
-{
-	return createstrobj(ks, str, l, KTAP_TLNGSTR, G(ks)->seed,
-			    &ks->gclist);
-}
-
-/*
- * new zero-terminated string
- */
-ktap_string *kp_tstring_new(ktap_state *ks, const char *str)
-{
-	return kp_tstring_newlstr(ks, str, strlen(str));
-}
-
-ktap_string *kp_tstring_new_local(ktap_state *ks, const char *str)
-{
-	return createstrobj(ks, str, strlen(str), KTAP_TLNGSTR, G(ks)->seed,
-			    &ks->gclist);
-}
-
-void kp_tstring_freeall(ktap_state *ks)
-{
-	ktap_global_state *g = G(ks);
-	int h;
-
-	for (h = 0; h < g->strt.size; h++) {
-		ktap_gcobject *o, *next;
-		o = g->strt.hash[h];
-		while (o) {
-			next = gch(o)->next;
-			kp_free(ks, o);
-			o = next;
-		}
-		g->strt.hash[h] = NULL;
-	}
-
-	kp_free(ks, g->strt.hash);
-}
-
-/* todo: dump long string, strt table only contain short string */
-void kp_tstring_dump(ktap_state *ks)
-{
-	ktap_gcobject *o;
-	ktap_global_state *g = G(ks);
-	int h;
-
-	kp_printf(ks, "tstring dump: strt size: %d, nuse: %d\n", g->strt.size,
-								 g->strt.nuse);
-	for (h = 0; h < g->strt.size; h++) {
-		for (o = g->strt.hash[h]; o != NULL; o = gch(o)->next) {
-			ktap_string *ts = rawgco2ts(o);
-			kp_printf(ks, "%s [%d]\n", getstr(ts), (int)ts->tsv.len);
-		}
-	}
-}
-
diff --git a/drivers/staging/ktap/interpreter/vm.c b/drivers/staging/ktap/interpreter/vm.c
deleted file mode 100644
index bc7b9518a88f..000000000000
--- a/drivers/staging/ktap/interpreter/vm.c
+++ /dev/null
@@ -1,1369 +0,0 @@
-/*
- * vm.c - ktap script virtual machine in Linux kernel
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
- *  - The part of code in this file is copied from lua initially.
- *  - lua's MIT license is compatible with GPL.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <linux/slab.h>
-#include <linux/ftrace_event.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include "../include/ktap.h"
-
-#define KTAP_MINSTACK 20
-
-/* todo: enlarge maxstack for big system like 64-bit */
-#define KTAP_MAXSTACK           15000
-
-#define KTAP_STACK_SIZE (BASIC_STACK_SIZE * sizeof(ktap_value))
-
-#define CIST_KTAP	(1 << 0) /* call is running a ktap function */
-#define CIST_REENTRY	(1 << 2)
-
-#define isktapfunc(ci)	((ci)->callstatus & CIST_KTAP)
-
-static void ktap_concat(ktap_state *ks, int start, int end)
-{
-	int i, len = 0;
-	StkId top = ks->ci->u.l.base;
-	ktap_string *ts;
-	char *ptr, *buffer;
-
-	for (i = start; i <= end; i++) {
-		if (!ttisstring(top + i)) {
-			kp_error(ks, "cannot concat non-string\n");
-			setnilvalue(top + start);
-			return;
-		}
-
-		len += rawtsvalue(top + i)->tsv.len;
-	}
-
-	if (len >= KTAP_PERCPU_BUFFER_SIZE) {
-		kp_error(ks, "Error: too long string concatenation\n");
-		return;
-	}
-
-	preempt_disable_notrace();
-
-	buffer = kp_percpu_data(KTAP_PERCPU_DATA_BUFFER);
-	ptr = buffer;
-
-	for (i = start; i <= end; i++) {
-		int len = rawtsvalue(top + i)->tsv.len;
-		strncpy(ptr, svalue(top + i), len);
-		ptr += len;
-	}
-	ts = kp_tstring_newlstr(ks, buffer, len);
-	setsvalue(top + start, ts);
-
-	preempt_enable_notrace();
-}
-
-/* todo: compare l == r if both is tstring type? */
-static int lessthan(ktap_state *ks, const ktap_value *l, const ktap_value *r)
-{
-	if (ttisnumber(l) && ttisnumber(r))
-		return NUMLT(nvalue(l), nvalue(r));
-	else if (ttisstring(l) && ttisstring(r))
-		return kp_tstring_cmp(rawtsvalue(l), rawtsvalue(r)) < 0;
-
-	return 0;
-}
-
-static int lessequal(ktap_state *ks, const ktap_value *l, const ktap_value *r)
-{
-	if (ttisnumber(l) && ttisnumber(r))
-		return NUMLE(nvalue(l), nvalue(r));
-	else if (ttisstring(l) && ttisstring(r))
-		return kp_tstring_cmp(rawtsvalue(l), rawtsvalue(r)) <= 0;
-
-	return 0;
-}
-
-static int fb2int (int x)
-{
-	int e = (x >> 3) & 0x1f;
-	if (e == 0)
-		return x;
-	else
-		return ((x & 7) + 8) << (e - 1);
-}
-
-static const ktap_value *ktap_tonumber(const ktap_value *obj, ktap_value *n)
-{
-	if (ttisnumber(obj))
-		return obj;
-
-	return NULL;
-}
-
-static ktap_upval *findupval(ktap_state *ks, StkId level)
-{
-	ktap_global_state *g = G(ks);
-	ktap_gcobject **pp = &ks->openupval;
-	ktap_upval *p;
-	ktap_upval *uv;
-
-	while (*pp != NULL && (p = gco2uv(*pp))->v >= level) {
-		if (p->v == level) {  /* found a corresponding upvalue? */
-			return p;
-		}
-		pp = &p->next;
-	}
-
-	/* not found: create a new one */
-	uv = &kp_newobject(ks, KTAP_TUPVAL, sizeof(ktap_upval), pp)->uv;
-	uv->v = level;  /* current value lives in the stack */
-	uv->u.l.prev = &g->uvhead;  /* double link it in `uvhead' list */
-	uv->u.l.next = g->uvhead.u.l.next;
-	uv->u.l.next->u.l.prev = uv;
-	g->uvhead.u.l.next = uv;
-	return uv;
-}
-
-/* todo: implement this*/
-static void function_close (ktap_state *ks, StkId level)
-{
-}
-
-/* create a new closure */
-static void pushclosure(ktap_state *ks, ktap_proto *p, ktap_upval **encup,
-			StkId base, StkId ra)
-{
-	int nup = p->sizeupvalues;
-	ktap_upvaldesc *uv = p->upvalues;
-	int i;
-	ktap_closure *ncl = kp_newlclosure(ks, nup);
-
-	ncl->l.p = p;
-	setcllvalue(ra, ncl);  /* anchor new closure in stack */
-
-	/* fill in its upvalues */
-	for (i = 0; i < nup; i++) {
-		if (uv[i].instack) {
-			/* upvalue refers to local variable? */
-			ncl->l.upvals[i] = findupval(ks, base + uv[i].idx);
-		} else {
-			/* get upvalue from enclosing function */
-			ncl->l.upvals[i] = encup[uv[i].idx];
-		}
-	}
-	//p->cache = ncl;  /* save it on cache for reuse */
-}
-
-static void gettable(ktap_state *ks, const ktap_value *t, ktap_value *key,
-		     StkId val)
-{
-	if (ttistable(t)) {
-		setobj(val, kp_table_get(hvalue(t), key));
-	} else if (ttisaggrtable(t)) {
-		kp_aggrtable_get(ks, ahvalue(t), key, val);
-	} else {
-		kp_error(ks, "get key from non-table\n");
-	}
-}
-
-static void settable(ktap_state *ks, const ktap_value *t, ktap_value *key,
-		     StkId val)
-{
-	if (ttistable(t)) {
-		kp_table_setvalue(ks, hvalue(t), key, val);
-	} else if (ttisaggrtable(t)) {
-		kp_aggrtable_set(ks, ahvalue(t), key, val);
-	} else {
-		kp_error(ks, "set key to non-table\n");
-	}
-}
-
-static void settable_incr(ktap_state *ks, const ktap_value *t, ktap_value *key,
-			  StkId val)
-{
-	if (unlikely(!ttistable(t))) {
-		kp_error(ks, "use += operator for non-table\n");
-		return;
-	}
-
-	if (unlikely(!ttisnumber(val))) {
-		kp_error(ks, "use non-number to += operator\n");
-		return;
-	}
-
-	kp_table_atomic_inc(ks, hvalue(t), key, nvalue(val));
-}
-
-
-static void growstack(ktap_state *ks, int n)
-{
-	ktap_value *oldstack;
-	int lim;
-	ktap_callinfo *ci;
-	ktap_gcobject *up;
-	int size = ks->stacksize;
-	int needed = (int)(ks->top - ks->stack) + n;
-	int newsize = 2 * size;
-
-	if (newsize > KTAP_MAXSTACK)
-		newsize = KTAP_MAXSTACK;
-
-	if (newsize < needed)
-		newsize = needed;
-
-	if (newsize > KTAP_MAXSTACK) {  /* stack overflow? */
-		kp_error(ks, "stack overflow\n");
-		return;
-	}
-
-	/* realloc stack */
-	oldstack = ks->stack;
-	lim = ks->stacksize;
-	kp_realloc(ks, ks->stack, ks->stacksize, newsize, ktap_value);
-
-	for (; lim < newsize; lim++)
-		setnilvalue(ks->stack + lim);
-	ks->stacksize = newsize;
-	ks->stack_last = ks->stack + newsize;
-
-	/* correct stack */
-	ks->top = (ks->top - oldstack) + ks->stack;
-	for (up = ks->openupval; up != NULL; up = up->gch.next)
-		gco2uv(up)->v = (gco2uv(up)->v - oldstack) + ks->stack;
-
-	for (ci = ks->ci; ci != NULL; ci = ci->prev) {
-		ci->top = (ci->top - oldstack) + ks->stack;
-		ci->func = (ci->func - oldstack) + ks->stack;
-		if (isktapfunc(ci))
-			ci->u.l.base = (ci->u.l.base - oldstack) + ks->stack;
-	}
-	
-}
-
-static inline void checkstack(ktap_state *ks, int n)
-{
-	if (ks->stack_last - ks->top <= n)
-		growstack(ks, n);
-}
-
-static StkId adjust_varargs(ktap_state *ks, ktap_proto *p, int actual)
-{
-	int i;
-	int nfixargs = p->numparams;
-	StkId base, fixed;
-
-	/* move fixed parameters to final position */
-	fixed = ks->top - actual;  /* first fixed argument */
-	base = ks->top;  /* final position of first argument */
-
-	for (i=0; i < nfixargs; i++) {
-		setobj(ks->top++, fixed + i);
-		setnilvalue(fixed + i);
-	}
-
-	return base;
-}
-
-static int poscall(ktap_state *ks, StkId first_result)
-{
-	ktap_callinfo *ci;
-	StkId res;
-	int wanted, i;
-
-	ci = ks->ci;
-
-	res = ci->func;
-	wanted = ci->nresults;
-
-	ks->ci = ci = ci->prev;
-
-	for (i = wanted; i != 0 && first_result < ks->top; i--)
-		setobj(res++, first_result++);
-
-	while(i-- > 0)
-		setnilvalue(res++);
-
-	ks->top = res;
-
-	return (wanted - (-1));
-}
-
-static ktap_callinfo *extend_ci(ktap_state *ks)
-{
-	ktap_callinfo *ci;
-
-	ci = kp_malloc(ks, sizeof(ktap_callinfo));
-	ks->ci->next = ci;
-	ci->prev = ks->ci;
-	ci->next = NULL;
-
-	return ci;
-}
-
-static void free_ci(ktap_state *ks)
-{
-	ktap_callinfo *ci = ks->ci;
-	ktap_callinfo *next;
-
-	if (!ci)
-		return;
-
-	next = ci->next;
-	ci->next = NULL;
-	while ((ci = next) != NULL) {
-		next = ci->next;
-		kp_free(ks, ci);
-	}
-}
-
-#define next_ci(ks) (ks->ci = ks->ci->next ? ks->ci->next : extend_ci(ks))
-#define savestack(ks, p)	((char *)(p) - (char *)ks->stack)
-#define restorestack(ks, n)	((ktap_value *)((char *)ks->stack + (n)))
-
-static int precall(ktap_state *ks, StkId func, int nresults)
-{
-	ktap_cfunction f;
-	ktap_callinfo *ci;
-	ktap_proto *p;
-	StkId base;
-	ptrdiff_t funcr = savestack(ks, func);
-	int n;
-
-	switch (ttype(func)) {
-	case KTAP_TLCF: /* light C function */
-		f = fvalue(func);
-		goto CFUNC;
-	case KTAP_TCCL: /* C closure */
-		f = clcvalue(func)->f;
- CFUNC:
-		checkstack(ks, KTAP_MINSTACK);
-		ci = next_ci(ks);
-		ci->nresults = nresults;
-		ci->func = restorestack(ks, funcr);
-		ci->top = ks->top + KTAP_MINSTACK;
-		ci->callstatus = 0;
-		n = (*f)(ks);
-		poscall(ks, ks->top - n);
-		return 1;
-	case KTAP_TLCL:	
-		p = CLVALUE(func)->p;
-		checkstack(ks, p->maxstacksize);
-		func = restorestack(ks, funcr);
-		n = (int)(ks->top - func) - 1; /* number of real arguments */
-
-		/* complete missing arguments */
-		for (; n < p->numparams; n++)
-			setnilvalue(ks->top++);
-
-		base = (!p->is_vararg) ? func + 1 : adjust_varargs(ks, p, n);
-		ci = next_ci(ks);
-		ci->nresults = nresults;
-		ci->func = func;
-		ci->u.l.base = base;
-		ci->top = base + p->maxstacksize;
-		ci->u.l.savedpc = p->code; /* starting point */
-		ci->callstatus = CIST_KTAP;
-		ks->top = ci->top;
-		return 0;
-	default:
-		kp_error(ks, "attempt to call nil function\n");
-	}
-
-	return 0;
-}
-
-#define RA(i)   (base+GETARG_A(i))
-#define RB(i)   (base+GETARG_B(i))
-#define ISK(x)  ((x) & BITRK)
-#define RC(i)   base+GETARG_C(i)
-#define RKB(i) \
-        ISK(GETARG_B(i)) ? k+INDEXK(GETARG_B(i)) : base+GETARG_B(i)
-#define RKC(i)  \
-        ISK(GETARG_C(i)) ? k+INDEXK(GETARG_C(i)) : base+GETARG_C(i)
-
-#define dojump(ci,i,e) { \
-	ci->u.l.savedpc += GETARG_sBx(i) + e; }
-#define donextjump(ci)  { instr = *ci->u.l.savedpc; dojump(ci, instr, 1); }
-
-#define arith_op(ks, op) { \
-	ktap_value *rb = RKB(instr); \
-	ktap_value *rc = RKC(instr); \
-	if (ttisnumber(rb) && ttisnumber(rc)) { \
-		ktap_number nb = nvalue(rb), nc = nvalue(rc); \
-		setnvalue(ra, op(nb, nc)); \
-	} else {	\
-		kp_puts(ks, "Error: Cannot make arith operation\n");	\
-		return;	\
-	} }
-
-static ktap_value *cfunction_cache_get(ktap_state *ks, int index);
-
-static void ktap_execute(ktap_state *ks)
-{
-	int exec_count = 0;
-	ktap_callinfo *ci;
-	ktap_lclosure *cl;
-	ktap_value *k;
-	unsigned int instr, opcode;
-	StkId base; /* stack pointer */
-	StkId ra; /* register pointer */
-	int res, nresults; /* temp varible */
-
-	ci = ks->ci;
-
- newframe:
-	cl = CLVALUE(ci->func);
-	k = cl->p->k;
-	base = ci->u.l.base;
-
- mainloop:
-	/* main loop of interpreter */
-
-	/* dead loop detaction */
-	if (exec_count++ == kp_max_exec_count) {
-		if (G(ks)->mainthread != ks) {
-			kp_error(ks, "non-mainthread executed instructions "
-				     "exceed max limit(%d)\n",
-					kp_max_exec_count);
-			return;
-		}
-
-		cond_resched();
-		if (signal_pending(current)) {
-			flush_signals(current);
-			return;
-		}
-		exec_count = 0;
-	}
-
-	instr = *(ci->u.l.savedpc++);
-	opcode = GET_OPCODE(instr);
-
-	/* ra is target register */
-	ra = RA(instr);
-
-	switch (opcode) {
-	case OP_MOVE:
-		setobj(ra, base + GETARG_B(instr));
-		break;
-	case OP_LOADK:
-		setobj(ra, k + GETARG_Bx(instr));
-		break;
-	case OP_LOADKX:
-		setobj(ra, k + GETARG_Ax(*ci->u.l.savedpc++));
-		break;
-	case OP_LOADBOOL:
-		setbvalue(ra, GETARG_B(instr));
-		if (GETARG_C(instr))
-			ci->u.l.savedpc++;
-		break;
-	case OP_LOADNIL: {
-		int b = GETARG_B(instr);
-		do {
-			setnilvalue(ra++);
-		} while (b--);
-		break;
-		}
-	case OP_GETUPVAL: {
-		int b = GETARG_B(instr);
-		setobj(ra, cl->upvals[b]->v);
-		break;
-		}
-	case OP_GETTABUP: {
-		int b = GETARG_B(instr);
-		gettable(ks, cl->upvals[b]->v, RKC(instr), ra);
-		base = ci->u.l.base;
-		break;
-		}
-	case OP_GETTABLE:
-		gettable(ks, RB(instr), RKC(instr), ra);
-		base = ci->u.l.base;
-		break;
-	case OP_SETTABUP: {
-		int a = GETARG_A(instr);
-		settable(ks, cl->upvals[a]->v, RKB(instr), RKC(instr));
-		base = ci->u.l.base;
-		break;
-		}
-	case OP_SETTABUP_INCR: {
-		int a = GETARG_A(instr);
-		settable_incr(ks, cl->upvals[a]->v, RKB(instr), RKC(instr));
-		base = ci->u.l.base;
-		break;
-		}
-	case OP_SETUPVAL: {
-		ktap_upval *uv = cl->upvals[GETARG_B(instr)];
-		setobj(uv->v, ra);
-		break;
-		}
-	case OP_SETTABLE:
-		settable(ks, ra, RKB(instr), RKC(instr));
-		base = ci->u.l.base;
-		break;
-	case OP_SETTABLE_INCR:
-		settable_incr(ks, ra, RKB(instr), RKC(instr));
-		base = ci->u.l.base;
-		break;
-	case OP_NEWTABLE: {
-		int b = GETARG_B(instr);
-		int c = GETARG_C(instr);
-		ktap_table *t = kp_table_new(ks);
-		sethvalue(ra, t);
-		if (b != 0 || c != 0)
-			kp_table_resize(ks, t, fb2int(b), fb2int(c));
-		break;
-		}
-	case OP_SELF: {
-		StkId rb = RB(instr);
-		setobj(ra+1, rb);
-		gettable(ks, rb, RKC(instr), ra);
-		base = ci->u.l.base;
-		break;
-		}
-	case OP_ADD:
-		arith_op(ks, NUMADD);
-		break;
-	case OP_SUB:
-		arith_op(ks, NUMSUB);
-		break;
-	case OP_MUL:
-		arith_op(ks, NUMMUL);
-		break;
-	case OP_DIV:
-		/* divide 0 checking */
-		if (!nvalue(RKC(instr))) {
-			kp_error(ks, "divide 0 arith operation\n");
-			return;
-		}
-		arith_op(ks, NUMDIV);
-		break;
-	case OP_MOD:
-		/* divide 0 checking */
-		if (!nvalue(RKC(instr))) {
-			kp_error(ks, "mod 0 arith operation\n");
-			return;
-		}
-		arith_op(ks, NUMMOD);
-		break;
-	case OP_POW:
-		kp_error(ks, "ktap don't support pow arith in kernel\n");
-		return;
-	case OP_UNM: {
-		ktap_value *rb = RB(instr);
-		if (ttisnumber(rb)) {
-			ktap_number nb = nvalue(rb);
-			setnvalue(ra, NUMUNM(nb));
-		}
-		break;
-		}
-	case OP_NOT:
-		res = isfalse(RB(instr));
-		setbvalue(ra, res);
-		break;
-	case OP_LEN: {
-		int len = kp_objlen(ks, RB(instr));
-		if (len < 0)
-			return;
-		setnvalue(ra, len);
-		break;
-		}
-	case OP_CONCAT: {
-		int b = GETARG_B(instr);
-		int c = GETARG_C(instr);
-		ktap_concat(ks, b, c);
-		break;
-		}
-	case OP_JMP:
-		dojump(ci, instr, 0);
-		break;
-	case OP_EQ: {
-		ktap_value *rb = RKB(instr);
-		ktap_value *rc = RKC(instr);
-		if ((int)equalobj(ks, rb, rc) != GETARG_A(instr))
-			ci->u.l.savedpc++;
-		else
-			donextjump(ci);
-
-		base = ci->u.l.base;
-		break;
-		}
-	case OP_LT:
-		if (lessthan(ks, RKB(instr), RKC(instr)) != GETARG_A(instr))
-			ci->u.l.savedpc++;
-		else
-			donextjump(ci);
-		base = ci->u.l.base;
-		break;
-	case OP_LE:
-		if (lessequal(ks, RKB(instr), RKC(instr)) != GETARG_A(instr))
-			ci->u.l.savedpc++;
-		else
-			donextjump(ci);
-		base = ci->u.l.base;
-		break;
-	case OP_TEST:
-		if (GETARG_C(instr) ? isfalse(ra) : !isfalse(ra))
-			ci->u.l.savedpc++;
-		else
-			donextjump(ci);
-		break;
-	case OP_TESTSET: {
-		ktap_value *rb = RB(instr);
-		if (GETARG_C(instr) ? isfalse(rb) : !isfalse(rb))
-			ci->u.l.savedpc++;
-		else {
-			setobj(ra, rb);
-			donextjump(ci);
-		}
-		break;
-		}
-	case OP_CALL: {
-		int b = GETARG_B(instr);
-		int ret;
-
-		nresults = GETARG_C(instr) - 1;
-
-		if (b != 0)
-			ks->top = ra + b;
-
-		ret = precall(ks, ra, nresults);
-		if (ret) { /* C function */
-			if (nresults >= 0)
-				ks->top = ci->top;
-			base = ci->u.l.base;
-			break;
-		} else { /* ktap function */
-			ci = ks->ci;
-			/* this flag is used for return time, see OP_RETURN */
-			ci->callstatus |= CIST_REENTRY;
-			goto newframe;
-		}
-		break;
-		}
-	case OP_TAILCALL: {
-		int b = GETARG_B(instr);
-
-		if (b != 0)
-			ks->top = ra+b;
-		if (precall(ks, ra, -1))  /* C function? */
-			base = ci->u.l.base;
-		else {
-			int aux;
-
-			/* 
-			 * tail call: put called frame (n) in place of
-			 * caller one (o)
-			 */
-			ktap_callinfo *nci = ks->ci;  /* called frame */
-			ktap_callinfo *oci = nci->prev;  /* caller frame */
-			StkId nfunc = nci->func;  /* called function */
-			StkId ofunc = oci->func;  /* caller function */
-			/* last stack slot filled by 'precall' */
-			StkId lim = nci->u.l.base +
-				    CLVALUE(nfunc)->p->numparams;
-
-			/* close all upvalues from previous call */
-			if (cl->p->sizep > 0)
-				function_close(ks, oci->u.l.base);
-
-			/* move new frame into old one */
-			for (aux = 0; nfunc + aux < lim; aux++)
-				setobj(ofunc + aux, nfunc + aux);
-			/* correct base */
-			oci->u.l.base = ofunc + (nci->u.l.base - nfunc);
-			/* correct top */
-			oci->top = ks->top = ofunc + (ks->top - nfunc);
-			oci->u.l.savedpc = nci->u.l.savedpc;
-			/* remove new frame */
-			ci = ks->ci = oci;
-			/* restart ktap_execute over new ktap function */
-			goto newframe;
-		}
-		break;
-		}
-	case OP_RETURN: {
-		int b = GETARG_B(instr);
-		if (b != 0)
-			ks->top = ra+b-1;
-		if (cl->p->sizep > 0)
-			function_close(ks, base);
-		b = poscall(ks, ra);
-
-		/* if it's called from external invocation, just return */
-		if (!(ci->callstatus & CIST_REENTRY))
-			return;
-
-		ci = ks->ci;
-		if (b)
-			ks->top = ci->top;
-		goto newframe;
-		}
-	case OP_FORLOOP: {
-		ktap_number step = nvalue(ra+2);
-		/* increment index */
-		ktap_number idx = NUMADD(nvalue(ra), step);
-		ktap_number limit = nvalue(ra+1);
-		if (NUMLT(0, step) ? NUMLE(idx, limit) : NUMLE(limit, idx)) {
-			ci->u.l.savedpc += GETARG_sBx(instr);  /* jump back */
-			setnvalue(ra, idx);  /* update internal index... */
-			setnvalue(ra+3, idx);  /* ...and external index */
-		}
-		break;
-		}
-	case OP_FORPREP: {
-		const ktap_value *init = ra;
-		const ktap_value *plimit = ra + 1;
-		const ktap_value *pstep = ra + 2;
-
-		if (!ktap_tonumber(init, ra)) {
-			kp_error(ks, KTAP_QL("for")
-				 " initial value must be a number\n");
-			return;
-		} else if (!ktap_tonumber(plimit, ra + 1)) {
-			kp_error(ks, KTAP_QL("for")
-				 " limit must be a number\n");
-			return;
-		} else if (!ktap_tonumber(pstep, ra + 2)) {
-			kp_error(ks, KTAP_QL("for") " step must be a number\n");
-			return;
-		}
-
-		setnvalue(ra, NUMSUB(nvalue(ra), nvalue(pstep)));
-		ci->u.l.savedpc += GETARG_sBx(instr);
-		break;
-		}
-	case OP_TFORCALL: {
-		StkId cb = ra + 3;  /* call base */
-		setobj(cb + 2, ra + 2);
-		setobj(cb + 1, ra + 1);
-		setobj(cb, ra);
-		ks->top = cb + 3;  /* func. + 2 args (state and index) */
-		kp_call(ks, cb, GETARG_C(instr));
-		base = ci->u.l.base;
-		ks->top = ci->top;
-		instr = *(ci->u.l.savedpc++);  /* go to next instruction */
-		ra = RA(instr);
-		}
-		/*go through */
-	case OP_TFORLOOP:
-		if (!ttisnil(ra + 1)) {  /* continue loop? */
-			setobj(ra, ra + 1);  /* save control variable */
-			ci->u.l.savedpc += GETARG_sBx(instr);  /* jump back */
-		}
-		break;
-	case OP_SETLIST: {
-		int n = GETARG_B(instr);
-		int c = GETARG_C(instr);
-		int last;
-		ktap_table *h;
-
-		if (n == 0)
-			n = (int)(ks->top - ra) - 1;
-		if (c == 0)
-			c = GETARG_Ax(*ci->u.l.savedpc++);
-
-		h = hvalue(ra);
-		last = ((c - 1) * LFIELDS_PER_FLUSH) + n;
-		if (last > h->sizearray)  /* needs more space? */
-			kp_table_resizearray(ks, h, last);
-
-		for (; n > 0; n--) {
-			ktap_value *val = ra+n;
-			kp_table_setint(ks, h, last--, val);
-		}
-		/* correct top (in case of previous open call) */
-		ks->top = ci->top;
-		break;
-		}
-	case OP_CLOSURE: {
-		/* need to use closure cache? (multithread contention issue)*/
-		ktap_proto *p = cl->p->p[GETARG_Bx(instr)];
-		pushclosure(ks, p, cl->upvals, base, ra);
-		break;
-		}
-	case OP_VARARG: {
-		int b = GETARG_B(instr) - 1;
-		int j;
-		int n = (int)(base - ci->func) - cl->p->numparams - 1;
-		if (b < 0) {  /* B == 0? */
-			b = n;  /* get all var. arguments */
-			checkstack(ks, n);
-			/* previous call may change the stack */
-			ra = RA(instr);
-			ks->top = ra + n;
-		}
-		for (j = 0; j < b; j++) {
-			if (j < n) {
-				setobj(ra + j, base - n + j);
-			} else
-				setnilvalue(ra + j);
-		}
-		break;
-		}
-	case OP_EXTRAARG:
-		return;
-
-	case OP_EVENT: {
-		struct ktap_event *e = ks->current_event;
-
-		if (unlikely(!e)) {
-			kp_error(ks, "invalid event context\n");
-			return;
-		}
-		setevalue(ra, e);
-		break;
-		}
-
-	case OP_EVENTNAME: {
-		struct ktap_event *e = ks->current_event;
-
-		if (unlikely(!e)) {
-			kp_error(ks, "invalid event context\n");
-			return;
-		}
-		setsvalue(ra, kp_tstring_new(ks, e->call->name));
-		break;
-		}
-	case OP_EVENTARG:
-		if (unlikely(!ks->current_event)) {
-			kp_error(ks, "invalid event context\n");
-			return;
-		}
-
-		kp_event_getarg(ks, ra, GETARG_B(instr));		
-		break;
-	case OP_LOAD_GLOBAL: {
-		ktap_value *cfunc = cfunction_cache_get(ks, GETARG_C(instr));
-		setobj(ra, cfunc);
-		}
-		break;
-
-	case OP_EXIT:
-		return;
-	}
-
-	goto mainloop;
-}
-
-void kp_call(ktap_state *ks, StkId func, int nresults)
-{
-	if (!precall(ks, func, nresults))
-		ktap_execute(ks);
-}
-
-static int cfunction_cache_getindex(ktap_state *ks, ktap_value *fname);
-
-/*
- * This function must be called before all code loaded.
- */
-void kp_optimize_code(ktap_state *ks, int level, ktap_proto *f)
-{
-	int i;
-
-	for (i = 0; i < f->sizecode; i++) {
-		int instr = f->code[i];
-		ktap_value *k = f->k;
-
-		if (GET_OPCODE(instr) == OP_GETTABUP) {
-			if ((GETARG_B(instr) == 0) && ISK(GETARG_C(instr))) {
-				ktap_value *field = k + INDEXK(GETARG_C(instr));
-				if (ttype(field) == KTAP_TSTRING) {
-					int index = cfunction_cache_getindex(ks,
-									field);
-					if (index == -1)
-						break;
-
-					SET_OPCODE(instr, OP_LOAD_GLOBAL);
-					SETARG_C(instr, index);
-					f->code[i] = instr;
-					break;
-				}
-			}
-		}
-	}
-
-	/* continue optimize sub functions */
-	for (i = 0; i < f->sizep; i++)
-		kp_optimize_code(ks, level + 1, f->p[i]);
-}
-
-static ktap_value *cfunction_cache_get(ktap_state *ks, int index)
-{
-	return &G(ks)->cfunction_tbl[index];
-}
-
-static int cfunction_cache_getindex(ktap_state *ks, ktap_value *fname)
-{
-	const ktap_value *gt = kp_table_getint(hvalue(&G(ks)->registry),
-				KTAP_RIDX_GLOBALS);
-	const ktap_value *cfunc;
-	int nr, i;
-
-	nr = G(ks)->nr_builtin_cfunction;
-	cfunc = kp_table_get(hvalue(gt), fname);
-
-	for (i = 0; i < nr; i++) {
-		if (rawequalobj(&G(ks)->cfunction_tbl[i], cfunc))
-			return i;
-	}
-
-	return -1;
-}
-
-static void cfunction_cache_add(ktap_state *ks, ktap_value *func)
-{
-	int nr = G(ks)->nr_builtin_cfunction;
-	setobj(&G(ks)->cfunction_tbl[nr], func);
-	G(ks)->nr_builtin_cfunction++;
-}
-
-static void cfunction_cache_exit(ktap_state *ks)
-{
-	kp_free(ks, G(ks)->cfunction_tbl);
-}
-
-static int cfunction_cache_init(ktap_state *ks)
-{
-	G(ks)->cfunction_tbl = kp_zalloc(ks, sizeof(ktap_value) * 128);
-	if (!G(ks)->cfunction_tbl)
-		return -ENOMEM;
-
-	return 0;
-}
-
-/* function for register library */
-void kp_register_lib(ktap_state *ks, const char *libname, const ktap_Reg *funcs)
-{
-	int i;
-	ktap_table *target_tbl;
-	const ktap_value *gt = kp_table_getint(hvalue(&G(ks)->registry),
-					       KTAP_RIDX_GLOBALS);
-
-	/* lib is null when register baselib function */
-	if (libname == NULL)
-		target_tbl = hvalue(gt);
-	else {
-		ktap_value key, val;
-
-		target_tbl = kp_table_new(ks);
-		kp_table_resize(ks, target_tbl, 0,
-				sizeof(*funcs) / sizeof(ktap_Reg));
-
-		setsvalue(&key, kp_tstring_new(ks, libname));
-		sethvalue(&val, target_tbl);
-		kp_table_setvalue(ks, hvalue(gt), &key, &val);
-	}
-
-	for (i = 0; funcs[i].name != NULL; i++) {
-		ktap_value func_name, cl;
-
-		setsvalue(&func_name, kp_tstring_new(ks, funcs[i].name));
-		setfvalue(&cl, funcs[i].func);
-		kp_table_setvalue(ks, target_tbl, &func_name, &cl);
-
-		cfunction_cache_add(ks, &cl);
-	}
-}
-
-#define BASIC_STACK_SIZE        (2 * KTAP_MINSTACK)
-
-static void kp_init_registry(ktap_state *ks)
-{
-	ktap_value mt;
-	ktap_table *registry = kp_table_new(ks);
-
-	sethvalue(&G(ks)->registry, registry);
-	kp_table_resize(ks, registry, KTAP_RIDX_LAST, 0);
-	setthvalue(ks, &mt, ks);
-	kp_table_setint(ks, registry, KTAP_RIDX_MAINTHREAD, &mt);
-	sethvalue(&mt, kp_table_new(ks));
-	kp_table_setint(ks, registry, KTAP_RIDX_GLOBALS, &mt);
-}
-
-static int kp_init_arguments(ktap_state *ks, int argc, char __user **user_argv)
-{
-	const ktap_value *gt = kp_table_getint(hvalue(&G(ks)->registry),
-			   KTAP_RIDX_GLOBALS);
-	ktap_table *global_tbl = hvalue(gt);
-	ktap_table *arg_tbl = kp_table_new(ks);
-	ktap_value arg_tblval;
-	ktap_value arg_tsval;
-	char **argv;
-	int i, ret;
-	
-	setsvalue(&arg_tsval, kp_tstring_new(ks, "arg"));
-	sethvalue(&arg_tblval, arg_tbl);
-	kp_table_setvalue(ks, global_tbl, &arg_tsval, &arg_tblval);
-
-	if (!argc)
-		return 0;
-
-	if (argc > 1024)
-		return -EINVAL;
-
-	argv = kzalloc(argc * sizeof(char *), GFP_KERNEL);
-	if (!argv)
-		return -ENOMEM;
-
-	ret = copy_from_user(argv, user_argv, argc * sizeof(char *));
-	if (ret < 0) {
-		kfree(argv);
-		return -EFAULT;
-	}
-
-	kp_table_resize(ks, arg_tbl, argc, 1);
-
-	ret = 0;
-	for (i = 0; i < argc; i++) {
-		ktap_value val;
-		char __user *ustr = argv[i];
-		char * kstr;
-		int len;
-		int res;
-
-		len = strlen_user(ustr);
-		if (len > 0x1000) {
-			ret = -EINVAL;
-			break;
-		}
-
-		kstr = kmalloc(len + 1, GFP_KERNEL);
-		if (!kstr) {
-			ret = -ENOMEM;
-			break;
-		}
-
-		if (strncpy_from_user(kstr, ustr, len) < 0) {
-			ret = -EFAULT;
-			break;
-		}
-
-		kstr[len] = '\0';
-
-		if (!kstrtoint(kstr, 10, &res)) {
-			setnvalue(&val, res);
-		} else
-			setsvalue(&val, kp_tstring_new(ks, kstr));
-
-		kp_table_setint(ks, arg_tbl, i, &val);
-
-		kfree(kstr);
-	}
-
-	kfree(argv);
-	return ret;
-}
-
-DEFINE_PER_CPU(int, kp_recursion_context[PERF_NR_CONTEXTS]);
-
-/* todo: make this per-session aware */
-static void __percpu *kp_pcpu_data[KTAP_PERCPU_DATA_MAX][PERF_NR_CONTEXTS];
-
-void *kp_percpu_data(int type)
-{
-	return this_cpu_ptr(kp_pcpu_data[type][trace_get_context_bit()]);
-}
-
-static void free_kp_percpu_data(void)
-{
-	int i, j;
-
-	for (i = 0; i < KTAP_PERCPU_DATA_MAX; i++) {
-		for (j = 0; j < PERF_NR_CONTEXTS; j++) {
-			free_percpu(kp_pcpu_data[i][j]);
-			kp_pcpu_data[i][j] = NULL;
-		}
-	}
-}
-
-static int alloc_kp_percpu_data(void)
-{
-	int data_size[KTAP_PERCPU_DATA_MAX] = {
-		sizeof(ktap_state), KTAP_STACK_SIZE, KTAP_PERCPU_BUFFER_SIZE,
-		KTAP_PERCPU_BUFFER_SIZE, sizeof(ktap_btrace)};
-	int i, j;
-
-	for (i = 0; i < KTAP_PERCPU_DATA_MAX; i++) {
-		for (j = 0; j < PERF_NR_CONTEXTS; j++) {
-			void __percpu *data = __alloc_percpu(data_size[i],
-							     __alignof__(char));
-			if (!data)
-				goto fail;
-			kp_pcpu_data[i][j] = data;
-		}
-	}
-
-	return 0;
-
- fail:
-	free_kp_percpu_data();
-	return -ENOMEM;
-}
-
-static void kp_init_state(ktap_state *ks)
-{
-	ktap_callinfo *ci;
-	int i;
-
-	ks->stacksize = BASIC_STACK_SIZE;
-
-	for (i = 0; i < BASIC_STACK_SIZE; i++)
-		setnilvalue(ks->stack + i);
-
-	ks->top = ks->stack;
-	ks->stack_last = ks->stack + ks->stacksize;
-
-	ci = &ks->baseci;
-	ci->callstatus = 0;
-	ci->func = ks->top;
-	setnilvalue(ks->top++);
-	ci->top = ks->top + KTAP_MINSTACK;
-	ks->ci = ci;
-}
-
-static void free_all_ci(ktap_state *ks)
-{
-	int cpu;
-
-	for_each_possible_cpu(cpu) {
-		ktap_state *ks;
-		int j;
-
-		for (j = 0; j < PERF_NR_CONTEXTS; j++) {
-			if (!kp_pcpu_data[KTAP_PERCPU_DATA_STATE][j])
-				break;
-
-			ks = per_cpu_ptr(kp_pcpu_data[KTAP_PERCPU_DATA_STATE][j], cpu);
-			if (!ks)
-				break;
-
-			free_ci(ks);
-		}
-	}
-
-	free_ci(ks);
-}
-
-void kp_exitthread(ktap_state *ks)
-{
-	/* free local allocation objects, like annotate strings */
-	kp_free_gclist(ks, ks->gclist);
-}
-
-ktap_state *kp_newthread(ktap_state *mainthread)
-{
-	ktap_state *ks;
-
-	ks = kp_percpu_data(KTAP_PERCPU_DATA_STATE);
-	ks->stack = kp_percpu_data(KTAP_PERCPU_DATA_STACK);
-	G(ks) = G(mainthread);
-	ks->gclist = NULL;
-	kp_init_state(ks);
-	return ks;
-}
-
-/*
- * wait ktapio thread read all content in ring buffer.
- *
- * Here we use stupid approach to sync with ktapio thread,
- * note that we cannot use semaphore/completion/other sync method,
- * because ktapio thread could be killed by SIG_KILL in anytime, there
- * have no safe way to up semaphore or wake waitqueue before thread exit.
- *
- * we also cannot use waitqueue of current->signal->wait_chldexit to sync
- * exit, becasue mainthread and ktapio thread are in same thread group.
- *
- * Also ktap mainthread must wait ktapio thread exit, otherwise ktapio
- * thread will oops when access ktap structure.
- */
-static void wait_user_completion(ktap_state *ks)
-{
-	struct task_struct *tsk = G(ks)->task;
-	G(ks)->wait_user = 1;
-
-	while (1) {
-		set_current_state(TASK_INTERRUPTIBLE);
-		/* sleep for 100 msecs, and try again. */
-		schedule_timeout(HZ / 10);
-
-		if (get_nr_threads(tsk) == 1)
-			break;
-	}
-}
-
-/* kp_wait: used for mainthread waiting for exit */
-static void kp_wait(ktap_state *ks)
-{
-	struct task_struct *task = G(ks)->trace_task;
-
-	if (G(ks)->exit)
-		return;
-
-	ks->stop = 0;
-
-	/* tell workload process to start executing */
-	if (G(ks)->parm->workload)
-		send_sig(SIGINT, G(ks)->trace_task, 0);
-
-	while (!ks->stop) {
-		set_current_state(TASK_INTERRUPTIBLE);
-		/* sleep for 100 msecs, and try again. */
-		schedule_timeout(HZ / 10);
-
-		if (signal_pending(current)) {
-			flush_signals(current);
-
-			/* newline for handle CTRL+C display as ^C */
-			kp_puts(ks, "\n");
-			break;
-		}
-
-		/* stop waiting if target pid is exited */
-		if (task && task->state == TASK_DEAD)
-				break;
-	}
-
-}
-
-void kp_exit(ktap_state *ks)
-{
-	set_next_as_exit(ks);
-
-	G(ks)->mainthread->stop = 1;
-	G(ks)->exit = 1;
-}
-
-void kp_final_exit(ktap_state *ks)
-{
-	if (!list_empty(&G(ks)->probe_events_head) ||
-	    !list_empty(&G(ks)->timers))
-		kp_wait(ks);
-
-	if (G(ks)->trace_task)
-		put_task_struct(G(ks)->trace_task);
-
-	kp_exit_timers(ks);
-	kp_probe_exit(ks);
-
-	/* free all resources got by ktap */
-	kp_tstring_freeall(ks);
-	kp_free_all_gcobject(ks);
-	cfunction_cache_exit(ks);
-
-	wait_user_completion(ks);
-
-	kp_transport_exit(ks);
-
-	kp_exitthread(ks);
-	kp_free(ks, ks->stack);
-	free_all_ci(ks);
-
-	free_kp_percpu_data();
-
-	free_cpumask_var(G(ks)->cpumask);
-	kp_free(ks, ks);
-}
-
-/* ktap mainthread initization, main entry for ktap */
-ktap_state *kp_newstate(ktap_parm *parm, struct dentry *dir)
-{
-	ktap_state *ks;
-	pid_t pid;
-	int cpu;
-
-	ks = kzalloc(sizeof(ktap_state) + sizeof(ktap_global_state),
-		     GFP_KERNEL);
-	if (!ks)
-		return NULL;
-
-	ks->stack = kp_malloc(ks, KTAP_STACK_SIZE);
-	G(ks) = (ktap_global_state *)(ks + 1);
-	G(ks)->mainthread = ks;
-	G(ks)->seed = 201236; /* todo: make more random in future */
-	G(ks)->task = current;
-	G(ks)->parm = parm;
-	INIT_LIST_HEAD(&(G(ks)->timers));
-	INIT_LIST_HEAD(&(G(ks)->probe_events_head));
-	G(ks)->exit = 0;
-
-	if (kp_transport_init(ks, dir))
-		goto out;
-
-	pid = (pid_t)parm->trace_pid;
-	if (pid != -1) {
-		struct task_struct *task;
-
-		rcu_read_lock();
-		task = pid_task(find_vpid(pid), PIDTYPE_PID);
-		if (!task) {
-			kp_error(ks, "cannot find pid %d\n", pid);
-			rcu_read_unlock();
-			goto out;
-		}
-		G(ks)->trace_task = task;
-		get_task_struct(task);
-		rcu_read_unlock();
-	}
-
-	if( !alloc_cpumask_var(&G(ks)->cpumask, GFP_KERNEL))
-		goto out;
-
-	cpumask_copy(G(ks)->cpumask, cpu_online_mask);
-
-	cpu = parm->trace_cpu;
-	if (cpu != -1) {
-		if (!cpu_online(cpu)) {
-			printk(KERN_INFO "ktap: cpu %d is not online\n", cpu);
-			goto out;
-		}
-
-		cpumask_clear(G(ks)->cpumask);
-		cpumask_set_cpu(cpu, G(ks)->cpumask);
-	}
-
-	if (cfunction_cache_init(ks))
-		goto out;
-
-	kp_tstring_resize(ks, 512); /* set inital string hashtable size */
-
-	kp_init_state(ks);
-	kp_init_registry(ks);
-	kp_init_arguments(ks, parm->argc, parm->argv);
-
-	/* init library */
-	kp_init_baselib(ks);
-	kp_init_kdebuglib(ks);
-	kp_init_timerlib(ks);
-	kp_init_ansilib(ks);
-
-	if (alloc_kp_percpu_data())
-		goto out;
-
-	if (kp_probe_init(ks))
-		goto out;
-
-	return ks;
-
- out:
-	G(ks)->exit = 1;
-	kp_final_exit(ks);
-	return NULL;
-}
-
diff --git a/drivers/staging/ktap/scripts/basic/backtrace.kp b/drivers/staging/ktap/scripts/basic/backtrace.kp
deleted file mode 100644
index 39b8c3989e7f..000000000000
--- a/drivers/staging/ktap/scripts/basic/backtrace.kp
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/usr/bin/env ktap
-
-trace sched:sched_switch {
-	print_backtrace()
-}
-
diff --git a/drivers/staging/ktap/scripts/basic/event_trigger.kp b/drivers/staging/ktap/scripts/basic/event_trigger.kp
deleted file mode 100644
index 3cc8b04f361e..000000000000
--- a/drivers/staging/ktap/scripts/basic/event_trigger.kp
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/usr/bin/env ktap
-
-soft_disabled = 1
-this_cpu = 0
-
-trace syscalls:sys_enter_open {
-	print(argevent)
-	soft_disabled = 0
-	this_cpu = cpu()
-}
-
-trace *:* {
-	if (soft_disabled == 0 && cpu() == this_cpu) {
-		print(argevent)
-	}
-}
-
-trace syscalls:sys_exit_open {
-	print(argevent)
-	if (cpu() == this_cpu) {
-		exit()
-	}
-}
-
diff --git a/drivers/staging/ktap/scripts/basic/event_trigger_ftrace.kp b/drivers/staging/ktap/scripts/basic/event_trigger_ftrace.kp
deleted file mode 100644
index 7e0d7d315619..000000000000
--- a/drivers/staging/ktap/scripts/basic/event_trigger_ftrace.kp
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/usr/bin/env ktap
-
-
-#This ktap script will output all function calling between
-#sys_enter_open and sys_exit_open, in one cpu.
-
-soft_disabled = 1
-this_cpu = 0
-
-trace syscalls:sys_enter_open {
-	print(argevent)
-	soft_disabled = 0
-	this_cpu = cpu()
-}
-
-trace ftrace:function {
-	if (soft_disabled == 0 && cpu() == this_cpu) {
-		print(argevent)
-	}
-}
-
-trace syscalls:sys_exit_open {
-	print(argevent)
-	if (cpu() == this_cpu) {
-		exit()
-	}
-}
-
diff --git a/drivers/staging/ktap/scripts/basic/ftrace.kp b/drivers/staging/ktap/scripts/basic/ftrace.kp
deleted file mode 100644
index 9feca2ba2318..000000000000
--- a/drivers/staging/ktap/scripts/basic/ftrace.kp
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/usr/bin/env ktap
-
-trace ftrace:function /ip==mutex*/ {
-	print(cpu(), pid(), execname(), argevent)
-}
-
diff --git a/drivers/staging/ktap/scripts/basic/function_time.kp b/drivers/staging/ktap/scripts/basic/function_time.kp
deleted file mode 100644
index e7859a396d95..000000000000
--- a/drivers/staging/ktap/scripts/basic/function_time.kp
+++ /dev/null
@@ -1,57 +0,0 @@
-#!/usr/bin/env ktap
-
-#Demo for thread-local variable
-#
-#Note this kind of function time tracing already handled concurrent issue,
-#but not aware on the recursion problem, user need to aware this limitation,
-#so don't use this script to trace function which could be called recursive.
-
-self = {}
-count_max = 0
-count_min = 0
-count_num = 0
-total_time = 0
-
-printf("measure time(us) of function vfs_read\n");
-
-trace probe:vfs_read {
-	if (execname() == "ktap") {
-		return
-	}
-
-	self[tid()] = gettimeofday_us()
-}
-
-trace probe:vfs_read%return {
-	if (execname() == "ktap") {
-		return
-	}
-
-	if (self[tid()] == nil) {
-		return
-	}
-
-	local durtion = gettimeofday_us() - self[tid()]
-	if (durtion > count_max) {
-		count_max = durtion
-	}
-	local min = count_min
-	if (min == 0 || durtion < min) {
-		count_min = durtion
-	}
-
-	count_num = count_num + 1
-	total_time = total_time + durtion
-
-	self[tid()] = nil
-}
-
-trace_end {
-	printf("avg\tmax\tmin\n");
-	printf("-------------------\n")
-
-	printf("%d\t%d\t%d\n", total_time/count_num,
-		count_max, count_min)
-}
-
-
diff --git a/drivers/staging/ktap/scripts/basic/kretprobe.kp b/drivers/staging/ktap/scripts/basic/kretprobe.kp
deleted file mode 100644
index 82de3cffa276..000000000000
--- a/drivers/staging/ktap/scripts/basic/kretprobe.kp
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/usr/bin/env ktap
-
-trace probe:vfs_read%return fd=$retval {
-	print(execname(), argevent);
-}
-
diff --git a/drivers/staging/ktap/scripts/game/tetris.kp b/drivers/staging/ktap/scripts/game/tetris.kp
deleted file mode 100644
index 7125cd4e46ce..000000000000
--- a/drivers/staging/ktap/scripts/game/tetris.kp
+++ /dev/null
@@ -1,328 +0,0 @@
-#!/usr/bin/env ktap
- 
-#
-# Tetris KTAP Script
-#
-# Copyright (C) 2013/OCT/05 Tadaki SAKAI
-#
-# based on stapgames (Systemtap Game Collection)
-#   https://github.com/mhiramat/stapgames/blob/master/games/tetris.stp
-#
-#   - Requirements
-#     Kernel Configuration: CONFIG_KPROBE_EVENT=y
-#                           CONFIG_EVENT_TRACING=y
-#                           CONFIG_PERF_EVENTS=y
-#                           CONFIG_DEBUG_FS=y
-#     CPU Architecture : x86_64
-#
-#   - Setup
-#     $ sudo mount -t debugfs none /sys/kernel/debug/
-#
-#     $ git clone https://github.com/ktap/ktap
-#     $ cd ktap
-#     $ make 2>&1 | tee ../make.log
-#     $ sudo make load
-#     $ sudo sh -c 'echo 50000 > /sys/module/ktapvm/parameters/max_exec_count'
-#
-#   - Run Tetris
-#     $ sudo ./ktap scripts/game/tetris.kp
-#
- 
- 
-#
-# utils
-#
- 
-function rand(max) {
-	r = gettimeofday_us()
-	if (r < 0) {
-		r = r * -1
-	}
-	return r % max
-}
- 
-color_table = {}
-color_table["Black"]	= 40
-color_table["Red"]	= 41
-color_table["Green"]	= 42
-color_table["Yellow"]	= 43
-color_table["Blue"]	= 44
-color_table["Purple"]	= 45
-color_table["Cyan"]	= 46
-color_table["White"]	= 47
- 
-function get_color_number(txt) {
-	return color_table[txt]
-}
- 
-color_table_text = {}
-color_table_text[40] = "Black"
-color_table_text[41] = "Red"
-color_table_text[42] = "Green"
-color_table_text[43] = "Yellow"
-color_table_text[44] = "Blue"
-color_table_text[45] = "Purple"
-color_table_text[46] = "Cyan"
-color_table_text[47] = "White"
- 
-function get_color_text(num) {
-	return color_table_text[num]
-}
-
-function update_display() {
-	for (i = 0, 239, 1) {
-		if ((i % 12 - 11) != 0) {
-			tmp = ""
-		} else {
-			tmp = "\n"
-		}
-
-		if (display_buffer[240 + i] == back_text) {
-			printf("%s%s", back_text, tmp)
-		} else {
-			ctext = display_buffer[240 + i]
-			ansi.set_color2(get_color_number(ctext), 
-					get_color_number(ctext))
-			printf("  %s", tmp)
-			ansi.reset_color()
-		}
-
-		# clear the display buffer
-		display_buffer[240 + i] = display_buffer[i]
-	}
-
-	printf("%d\n",point)
-}
-
- 
-#
-# global value
-#
- 
-key_code = 0
-point = 0
-block_number = 0
-height = 0
-height_update = 0
- 
-destination_position = {}
-back_text = {}
-block_color = {}
-display_buffer = {}
- 
-block_data0 = {}
-block_data1 = {}
-block_data2 = {}
-block_data3 = {}
-block_data4 = {}
-block_data5 = {}
-block_data6 = {}
-block_table = {}
- 
-#
-# Initialize
-#
- 
-# Create blocks
-# block is represented by the position from the center.
-# Every block has "L" part in the center except for a bar.
-block_data0[0] = -11 # non-"L" part for each block
-block_data1[0] = -24
-block_data2[0] = 2
-block_data3[0] = 13
-block_data4[0] = -13
-block_data5[0] = -1
-block_data6[0] = 2
-	
-block_table[0] = block_data0
-block_table[1] = block_data1
-block_table[2] = block_data2
-block_table[3] = block_data3
-block_table[4] = block_data4
-block_table[5] = block_data5
-block_table[6] = block_data6
- 
-for (i = 0, len(block_table) - 1, 1) {
-	# common "L" part
-	block_table[i][1] = 0
-	block_table[i][2] = 1
-	block_table[i][3] = -12
-}
- 
-block_table[6][3] = -1 # bar is not common
-# Position: 1 row has 12 columns, 
-# and (x, y) is represented by h = x + y * 12.p
-height = 17 # First block position (center)
-
-for (i = 0, 240, 1) {
-	# Wall and Floor (sentinel)
-	if (((i % 12) < 2) || (i > 228)) {
-		block_color = "White"
-		tmp = block_color
-	} else {
-		back_text = "  "
-		tmp = back_text
-	}
-	display_buffer[i - 1] = tmp
-	display_buffer[240 + i - 1] = tmp
-}
-
-block_number = rand(len(color_table) - 1)
-block_color = get_color_text(block_number + 40)
-
-ansi.clear_screen()
- 
- 
-#
-# Key Input
-#
- 
-trace probe:kbd_event handle=%di event_type=%si event_code=%dx value=%cx {
-	# Only can run it in x86_64
-	#
-	# Register follow x86_64 call conversion:
-	#
-	# x86_64:
-	#	%rcx	4 argument
-	#	%rdx	3 argument
-	#	%rsi	2 argument
-	#	%rdi	1 argument
- 
-	local event_code = arg4
-	local value = arg5
- 
-	if (value != 0) {
-		if ((event_code - 4) != 0) {
-			key_code = event_code
-		}
-	}
-}
- 
- 
-#
-# timer
-#
- 
-tick-200ms {
-	ansi.clear_screen()
- 
-	f = 0 # move/rotate flag
- 
-	if (key_code != 0) { # if key is pressed
-		if(key_code != 103) { #move left or right
-			# d: movement direction
-			if ((key_code - 105) != 0) {
-				if ((key_code - 106) != 0) {
-					d = 0
-				} else {
-					d = 1
-				}
-			} else {
-				d = -1
-			}
- 
-			for (i = 0, 3, 1) { # check if the block can be moved
-				# destination is free
-				if (display_buffer[height +
-					block_table[block_number][i] + d] 
-				    != back_text) {
-					f = 1
-				}
-			}
-			# move if destinations of every block are free
-			if (f == 0) {
-				height = height + d
-			} 
-		} else { # rotate
-			for (i = 0, 3, 1) { # check if block can be rotated
-				# each block position
-				p = block_table[block_number][i]
- 
-				# destination x pos(p/12 rounded)
-				v = (p * 2 + 252) / 24 - 10
-				w = p - v * 12 # destination y pos
- 
-				# destination position
-				destination_position[i] = w * 12 - v
- 
-				# check if desetination is free
-				if (display_buffer[height +
-				    destination_position[i]] != back_text) {
-					f = 1
-				}
-			}
- 
-			if (f == 0) {
-				# rotate if destinations of every block
-				# are free
-				for (i = 0, 3, 1) {
-					block_table[block_number][i] = 
-						destination_position[i] 
-				}
-			}
-		}
-	}
-	key_code = 0 # clear the input key
- 
-	f = 0
-	for (i = 0, 3, 1) { # drop 1 row
-		# check if destination is free
-		p = height + block_table[block_number][i]
-		if (display_buffer[12 + p] != back_text) {
-			f = 1
-		}
- 
-		# copy the moving block to display buffer
-		display_buffer[240 + p] = block_color
-	}
-
-	if ((f == 1) && (height == 17)) {
-		update_display()
-		exit() # exit if there are block at initial position
-	}
- 
-	height_update = !height_update
-	if (height_update != 0) {
-		if(f != 0) { # the block can't drop anymore
-			for (i = 0, 3, 1) {
-				# fix the block
-				display_buffer[height + 
-				  block_table[block_number][i]] = block_color 
-			}
-			# determin the next block
-			block_number = rand(len(color_table) - 1)
- 
-			block_color = get_color_text(block_number + 40)
- 
-			height = 17 # make the block to initial position
-		} else {
-			height = height + 12 # drop the block 1 row
-		}
-	}
- 
-	k = 1
-	for (i = 18, 0, -1) { #check if line is filled
-		# search for filled line
-		j = 10
-		while ((j > 0) && 
-		       (display_buffer[i * 12 + j] != back_text)) {
-			j = j - 1
-		}
- 
-		if (j == 0) { # filled!
-			# add a point: 1 line - 1 point, ..., tetris - 10points
-			point = point + k
-			k = k + 1
- 
-			# drop every upper block
-			j = (i + 1) * 12
-			i = i + 1
-			while (j > 2 * 12) {
-				j = j - 1
-				display_buffer[j] = display_buffer[j - 12] 
-			}
-		}
-	}
- 
-	update_display()
-}
diff --git a/drivers/staging/ktap/scripts/helloworld.kp b/drivers/staging/ktap/scripts/helloworld.kp
deleted file mode 100644
index 5673c15b0226..000000000000
--- a/drivers/staging/ktap/scripts/helloworld.kp
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/usr/bin/env ktap
-
-print("Hello World! I am ktap")
diff --git a/drivers/staging/ktap/scripts/interrupt/hardirq_time.kp b/drivers/staging/ktap/scripts/interrupt/hardirq_time.kp
deleted file mode 100644
index 1d3c33e859d1..000000000000
--- a/drivers/staging/ktap/scripts/interrupt/hardirq_time.kp
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/usr/bin/env ktap
-
-#this script output each average consumimg time of each hardirq
-s = aggr_table()
-map = {}
-
-trace irq:irq_handler_entry {
-	map[cpu()] = gettimeofday_us()
-}
-
-trace irq:irq_handler_exit {
-	local entry_time = map[cpu()]
-	if (entry_time == nil) {
-		return;
-	}
-
-	s[arg1] = avg(gettimeofday_us() - entry_time)
-	map[cpu()] = nil
-}
-
-trace_end {
-	print("hardirq average executing time (us)")
-	histogram(s)
-}
-
diff --git a/drivers/staging/ktap/scripts/interrupt/softirq_time.kp b/drivers/staging/ktap/scripts/interrupt/softirq_time.kp
deleted file mode 100644
index 7e1a9d8a9172..000000000000
--- a/drivers/staging/ktap/scripts/interrupt/softirq_time.kp
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/usr/bin/env ktap
-
-#this script output each average consumimg time of each softirq line
-s = aggr_table()
-map = {}
-
-trace irq:softirq_entry {
-	map[cpu()] = gettimeofday_us()
-}
-
-trace irq:softirq_exit {
-	local entry_time = map[cpu()]
-	if (entry_time == nil) {
-		return;
-	}
-
-	s[arg1] = avg(gettimeofday_us() - entry_time)
-	map[cpu()] = nil
-}
-
-trace_end {
-	print("softirq average executing time (us)")
-	histogram(s)
-}
-
diff --git a/drivers/staging/ktap/scripts/io/kprobes-do-sys-open.kp b/drivers/staging/ktap/scripts/io/kprobes-do-sys-open.kp
deleted file mode 100644
index a15f911a1804..000000000000
--- a/drivers/staging/ktap/scripts/io/kprobes-do-sys-open.kp
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/usr/bin/env ktap
-
-#Only can run it in x86_64
-#
-#Register follow x86_64 call conversion:
-#
-#x86_64:
-#	%rcx	4 argument
-#	%rdx	3 argument
-#	%rsi	2 argument
-#	%rdi	1 argument
-
-trace probe:do_sys_open dfd=%di filename=%si flags=%dx mode=%cx {
-	printf("[do_sys_open entry]: (%s) open file (%s)\n",
-		execname(),  user_string(arg3))
-}
-
-trace probe:do_sys_open%return fd=$retval {
-	printf("[do_sys_open exit]:  return fd (%d)\n", arg3)
-}
diff --git a/drivers/staging/ktap/scripts/io/traceio.kp b/drivers/staging/ktap/scripts/io/traceio.kp
deleted file mode 100644
index 8a95a2534384..000000000000
--- a/drivers/staging/ktap/scripts/io/traceio.kp
+++ /dev/null
@@ -1,56 +0,0 @@
-#! /usr/bin/env ktap
-
-# Based on systemtap traceio.stp
-
-#this script is broken, fix it soon.
-
-reads = aggr_table()
-writes = aggr_table()
-total_io = aggr_table()
-
-trace syscalls:sys_exit_read {
-	reads[execname()] = sum(arg2)
-	total_io[execname()] = sum(arg2)
-}
-
-trace syscalls:sys_exit_write {
-	writes[execname()] = sum(arg2)
-	total_io[execname()] = sum(arg2)
-}
-
-function humanread_digit(bytes) {
-	if (bytes > 1024*1024*1024) {
-		return bytes/1024/1024/1024
-	} elseif (bytes > 1024*1024) {
-		return bytes/1024/1024
-	} elseif (bytes > 1024) {
-		return bytes/1024
-	} else {
-		return bytes
-	}
-}
-
-function humanread_x(bytes) {
-	if (bytes > 1024*1024*1024) {
-		return " GiB"
-	} elseif (bytes > 1024*1024) {
-		return " MiB"
-	} elseif (bytes > 1024) {
-		return " KiB"
-	} else {
-		return "   B"
-	}
-}
-
-tick-1s {
-	ansi.clear_screen()
-	for (exec, count in pairs(total_io)) {
-		local readnum = reads[exec]
-		local writenum = writes[exec]
-		printf("%15s r: %12d%s w: %12d%s\n", exec,
-			humanread_digit(readnum), humanread_x(readnum),
-			humanread_digit(writenum), humanread_x(writenum))
-	}
-	printf("\n")
-}
-
diff --git a/drivers/staging/ktap/scripts/mem/kmalloc-top.kp b/drivers/staging/ktap/scripts/mem/kmalloc-top.kp
deleted file mode 100644
index f18ed9fc64cf..000000000000
--- a/drivers/staging/ktap/scripts/mem/kmalloc-top.kp
+++ /dev/null
@@ -1,17 +0,0 @@
-#!/usr/bin/env ktap
-
-kmalloc_stack = {}
-
-trace kmem:kmalloc {
-	kmalloc_stack[backtrace()] += 1
-}
-
-tick-60s {
-	for (k, v in pairs(kmalloc_stack)) {
-		print(k)
-		printf("%d\n\n", v)
-	}
-
-	exit()
-}
-
diff --git a/drivers/staging/ktap/scripts/mem/kmem.kp b/drivers/staging/ktap/scripts/mem/kmem.kp
deleted file mode 100644
index c6f2c99c54cd..000000000000
--- a/drivers/staging/ktap/scripts/mem/kmem.kp
+++ /dev/null
@@ -1,30 +0,0 @@
-#!/usr/bin/env ktap
-
-count1 = 0
-trace kmem:kmalloc {
-	count1 = count1 + 1
-}
-
-count2 = 0
-trace kmem:kfree {
-	count2 = count2 + 1
-}
-
-count3 = 0
-trace kmem:mm_page_alloc {
-	count3 = count3 + 1
-}
-
-count4 = 0
-trace kmem:mm_page_free {
-	count4 = count4 + 1
-}
-
-trace_end {
-	print("\n")
-	print("kmem:kmalloc:\t", count1)
-	print("kmem:kfree:\t", count2)
-	print("kmem:mm_page_alloc:", count3)
-	print("kmem:mm_page_free:", count4)
-	print("trace ending\n")
-}
diff --git a/drivers/staging/ktap/scripts/profiling/function_profiler.kp b/drivers/staging/ktap/scripts/profiling/function_profiler.kp
deleted file mode 100644
index 589017fe83b4..000000000000
--- a/drivers/staging/ktap/scripts/profiling/function_profiler.kp
+++ /dev/null
@@ -1,41 +0,0 @@
-#!/usr/bin/env ktap
-
-#kernel function profile
-#You can use this script to know what function is called frequently,
-#without enable CONFIG_FUNCTION_PROFILER in kernel.
-
-s = aggr_table()
-
-trace ftrace:function {
-	s[arg1] = count()
-}
-
-trace_end {
-	histogram(s)
-}
-
-#sample output
-#^C
-#                          value ------------- Distribution ------------- count
-#               sub_preempt_count | @@@@@                                  34904
-#               add_preempt_count | @@@@@                                  33435
-#              nsecs_to_jiffies64 | @@@                                    19919
-# irqtime_account_process_tick... | @                                      9970
-#               account_idle_time | @                                      9880
-#                  _raw_spin_lock |                                        5100
-#                _raw_spin_unlock |                                        5021
-#     _raw_spin_unlock_irqrestore |                                        4235
-#          _raw_spin_lock_irqsave |                                        4232
-#                 __rcu_read_lock |                                        3373
-#               __rcu_read_unlock |                                        3373
-#                  lookup_address |                                        2392
-#             pfn_range_is_mapped |                                        2384
-#      update_cfs_rq_blocked_load |                                        1983
-#                        idle_cpu |                                        1808
-#                       ktime_get |                                        1394
-#            _raw_spin_unlock_irq |                                        1270
-#              _raw_spin_lock_irq |                                        1091
-#                     update_curr |                                        950
-#             irqtime_account_irq |                                        950
-#                             ... |
-#
diff --git a/drivers/staging/ktap/scripts/profiling/stack_profile.kp b/drivers/staging/ktap/scripts/profiling/stack_profile.kp
deleted file mode 100644
index 97945602fcea..000000000000
--- a/drivers/staging/ktap/scripts/profiling/stack_profile.kp
+++ /dev/null
@@ -1,26 +0,0 @@
-#!/usr/bin/env ktap
-
-# This ktap script samples stacktrace of system per 10us,
-# you can use generated output to make a flame graph.
-#
-# Flame Graphs:
-# http://dtrace.org/blogs/brendan/2012/03/17/linux-kernel-performance-flame-graphs/
-
-s = aggr_table()
-
-profile-10us {
-	s[backtrace()] = count()
-}
-
-tick-60s {
-	exit()
-}
-
-trace_end {
-	for (k, v in pairs(s)) {
-		print(k)
-		print(v)
-		print()
-	}
-}
-
diff --git a/drivers/staging/ktap/scripts/schedule/sched_transition.kp b/drivers/staging/ktap/scripts/schedule/sched_transition.kp
deleted file mode 100644
index eb54b09c3248..000000000000
--- a/drivers/staging/ktap/scripts/schedule/sched_transition.kp
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/usr/bin/env ktap
-
-trace sched:sched_switch {
-	printf("%s ... ", arg1)
-}
diff --git a/drivers/staging/ktap/scripts/schedule/schedtimes.kp b/drivers/staging/ktap/scripts/schedule/schedtimes.kp
deleted file mode 100644
index acef904a2cae..000000000000
--- a/drivers/staging/ktap/scripts/schedule/schedtimes.kp
+++ /dev/null
@@ -1,125 +0,0 @@
-#!/usr/vin/env ktap
-
-#schedtimer.kp
-#Initially inspired by Systemtap schedtimes.stp
-#and more bugfree compare with Systemtap's version
-#
-#Note that the time value is associate with pid, not with execname strictly,
-#sometime you will found there have sleep time for command "ls", the reason
-#is that sleep time is belong to parent process bash, so clear on this.
-
-RUNNING = 0
-QUEUED = 1
-SLEEPING = 2
-DEAD = 64
-
-run_time = {}
-queued_time = {}
-sleep_time = {}
-io_wait_time = {}
-
-pid_state = {}
-pid_names = {}
-prev_timestamp = {}
-io_wait = {}
-
-trace sched:sched_switch {
-	local prev_comm = arg1
-	local prev_pid = arg2
-	local prev_state = arg4
-	local next_comm = arg5
-	local next_pid = arg6
-	local t = gettimeofday_us()
-
-	if (pid_state[prev_pid] == nil) {
-		#do nothing
-	} elseif (pid_state[prev_pid] == RUNNING) {
-		run_time[prev_pid] += t - prev_timestamp[prev_pid]
-	} elseif (pid_state[prev_pid] == QUEUED) {
-		#found this:
-		#sched_wakeup comm=foo
-		#sched_switch prev_comm=foo
-		run_time[prev_pid] += t - prev_timestamp[prev_pid]
-	}
-
-	pid_names[prev_pid] = prev_comm
-	prev_timestamp[prev_pid] = t
-
-	if (prev_state == DEAD) {
-		pid_state[prev_pid] = DEAD
-	} elseif (prev_state > 0) {
-		if (in_iowait() == 1) {
-			io_wait[prev_pid] = 1
-		}
-		pid_state[prev_pid] = SLEEPING
-	} elseif (prev_state == 0) {
-		pid_state[prev_pid] = QUEUED
-	}
-
-	if (pid_state[next_pid] == nil) {
-		pid_state[next_pid] = RUNNING
-	} elseif (pid_state[next_pid] == QUEUED) {
-		queued_time[next_pid] += t - prev_timestamp[next_pid]
-		pid_state[next_pid] = RUNNING
-	}
-
-	pid_names[next_pid] = next_comm
-	prev_timestamp[next_pid] = t
-}
-
-trace sched:sched_wakeup, sched:sched_wakeup_new {
-	local comm = arg1
-	local wakeup_pid = arg2
-	local success = arg4
-	local t = gettimeofday_us()
-
-	if (pid_state[wakeup_pid] == nil) {
-		#do nothing
-	} elseif (pid_state[wakeup_pid] == SLEEPING) {
-		local durtion = t - prev_timestamp[wakeup_pid]
-
-		sleep_time[wakeup_pid] += durtion
-		if (io_wait[wakeup_pid] == 1) {
-			io_wait_time[wakeup_pid] += durtion
-			io_wait[wakeup_pid] = 0
-		}
-	} elseif (pid_state[wakeup_pid] == RUNNING) {
-		return
-	}
-
-	pid_names[wakeup_pid] = comm
-	prev_timestamp[wakeup_pid] = t
-	pid_state[wakeup_pid] = QUEUED
-}
-
-trace_end {
-	local t = gettimeofday_us()
-	
-	for (pid, state in pairs(pid_state)) {
-		local durtion = t - prev_timestamp[pid]
-		if (state == SLEEPING) {
-			sleep_time[pid] += durtion
-		} elseif (state == QUEUED) {
-			queued_time[pid] += durtion
-		} elseif (state == RUNNING) {
-			run_time[pid] += durtion
-		}
-	}
-
-	printf ("%16s: %6s %10s %10s %10s %10s %10s\n\n",
-		"execname", "pid", "run(us)", "sleep(us)", "io_wait(us)",
-		"queued(us)", "total(us)")
-
-	for (pid, time in pairs(run_time)) {
-		if (sleep_time[pid] == nil) {
-			sleep_time[pid] = 0
-		}
-		if (queued_time[pid] == nil) {
-			queue_time[pid] = 0
-		}
-		printf("%16s: %6d %10d %10d %10d %10d %10d\n",
-			pid_names[pid], pid, run_time[pid], sleep_time[pid],
-			io_wait_time[pid], queued_time[pid],
-			run_time[pid] + sleep_time[pid] + queued_time[pid]);
-	}
-}
diff --git a/drivers/staging/ktap/scripts/syscalls/errinfo.kp b/drivers/staging/ktap/scripts/syscalls/errinfo.kp
deleted file mode 100644
index 049031b3e374..000000000000
--- a/drivers/staging/ktap/scripts/syscalls/errinfo.kp
+++ /dev/null
@@ -1,145 +0,0 @@
-#!/usr/bin/env ktap
-
-#errdesc get from include/uapi/asm-generic/errno*.h
-errdesc = {
-	[1] = "Operation not permitted",		#EPERM
-	[2] = "No such file or directory",		#ENOENT
-	[3] = "No such process",			#ESRCH
-	[4] = "Interrupted system call",		#EINRT
-	[5] = "I/O error",				#EIO
-	[6] = "No such device or address",		#ENXIO
-	[7] = "Argument list too long",			#E2BIG
-	[8] = "Exec format error",			#ENOEXEC
-	[9] = "Bad file number",			#EBADF
-	[10] = "No child processes",			#ECHILD
-	[11] = "Try again",				#EAGAIN
-	[12] = "Out of memory",				#ENOMEM
-	[13] = "Permission denied",			#EACCES
-	[14] = "Bad address",				#EFAULT
-	[15] = "Block device required",			#ENOTBLK
-	[16] = "Device or resource busy",		#EBUSY
-	[17] = "File exists",				#EEXIST
-	[18] = "Cross-device link",			#EXDEV
-	[19] = "No such device",			#ENODEV
-	[20] = "Not a directory",			#ENOTDIR
-	[21] = "Is a directory",			#EISDIR
-	[22] = "Invalid argument",			#EINVAL
-	[23] = "File table overflow",			#ENFILE
-	[24] = "Too many open files",			#EMFILE
-	[25] = "Not a typewriter",			#ENOTTY
-	[26] = "Text file busy",			#ETXTBSY
-	[27] = "File too large",			#EFBIG
-	[28] = "No space left on device",		#ENOSPC
-	[29] = "Illegal seek",				#ESPIPE
-	[30] = "Read-only file system",			#EROFS
-	[31] = "Too many links",			#EMLINK
-	[32] = "Broken pipe",				#EPIPE
-	[33] = "Math argument out of domain of func",	#EDOM
-	[34] = "Math result not representable",		#ERANGE
-
-	[35] = "Resource deadlock would occur",		#EDEADLK
-	[36] = "File name too long", 			#ENAMETOOLONG
-	[37] = "No record locks available",		#ENOLCK
-	[38] = "Function not implemented",		#ENOSYS
-	[39] = "Directory not empty",			#ENOTEMPTY		
-	[40] = "Too many symbolic links encountered",	#ELOOP
-	[42] = "No message of desired type",		#ENOMSG
-	[43] = "Identifier removed",			#EIDRM
-	[44] = "Channel number out of range",		#ECHRNG
-	[45] = "Level 2 not synchronized",		#EL2NSYNC
-	[46] = "Level 3 halted",			#EL3HLT
-	[47] = "Level 3 reset",				#EL3RST			
-	[48] = "Link number out of range",		#ELNRNG
-	[49] = "Protocol driver not attached",		#EUNATCH
-	[50] = "No CSI structure available",		#ENOCSI
-	[51] = "Level 2 halted",			#EL2HLT
-	[52] = "Invalid exchange",			#EBADE
-	[53] = "Invalid request descriptor",		#EBADR
-	[54] = "Exchange full",				#EXFULL
-	[55] = "No anode",				#ENOANO
-	[56] = "Invalid request code",			#EBADRQC
-	[57] = "Invalid slot",				#EBADSLT
-
-	[59] = "Bad font file format",			#EBFONT
-	[60] = "Device not a stream",			#ENOSTR
-	[61] = "No data available",			#ENODATA
-	[62] = "Timer expired",				#ETIME
-	[63] = "Out of streams resources",		#ENOSR
-	[64] = "Machine is not on the network",		#ENONET
-	[65] = "Package not installed",			#ENOPKG
-	[66] = "Object is remote",			#EREMOTE
-	[67] = "Link has been severed",			#ENOLINK
-	[68] = "Advertise error",			#EADV
-	[69] = "Srmount error",				#ESRMNT
-	[70] = "Communication error on send",		#ECOMM
-	[71] = "Protocol error",			#EPROTO
-	[72] = "Multihop attempted",			#EMULTIHOP
-	[73] = "RFS specific error",			#EDOTDOT
-	[74] = "Not a data message",			#EBADMSG
-	[75] = "Value too large for defined data type",	#EOVERFLOW
-	[76] = "Name not unique on network",		#ENOTUNIQ
-	[77] = "File descriptor in bad state",		#EBADFD
-	[78] = "Remote address changed",		#EREMCHG
-	[79] = "Can not access a needed shared library", #ELIBACC
-	[80] = "Accessing a corrupted shared library",	#ELIBBAD
-	[81] = ".lib section in a.out corrupted",	#ELIBSCN
-	[82] = "Attempting to link in too many shared libraries", #ELIBMAX
-	[83] = "Cannot exec a shared library directly",	#ELIBEXEC
-	[84] = "Illegal byte sequence",			#EILSEQ
-	[85] = "Interrupted system call should be restarted", #ERESTART
-	[86] = "Streams pipe error",			#ESTRPIPE
-	[87] = "Too many users",			#EUSERS
-	[88] = "Socket operation on non-socket",	#ENOTSOCK
-	[89] = "Destination address required",		#EDESTADDRREQ
-	[90] = "Message too long",			#EMSGSIZE
-	[91] = "Protocol wrong type for socket",	#EPROTOTYPE
-	[92] = "Protocol not available",		#ENOPROTOOPT
-	[93] = "Protocol not supported",		#EPROTONOSUPPORT
-	[94] = "Socket type not supported",		#ESOCKTNOSUPPORT
-	[95] = "Operation not supported on transport endpoint", #EOPNOTSUPP
-	[96] = "Protocol family not supported",		#EPFNOSUPPORT
-	[97] = "Address family not supported by protocol", #EAFNOSUPPORT
-	[98] = "Address already in use",		#EADDRINUSE
-	[99] = "Cannot assign requested address",	#EADDRNOTAVAIL
-	[100] = "Network is down",			#ENETDOWN
-	[101] = "Network is unreachable",		#ENETUNREACH
-	[102] = "Network dropped connection because of reset",	#ENETRESET
-	[103] = "Software caused connection abort",	#ECONNABORTED
-	[104] = "Connection reset by peer",		#ECONNRESET
-	[105] = "No buffer space available",		#ENOBUFS
-	[106] = "Transport endpoint is already connected", #EISCONN
-	[107] = "Transport endpoint is not connected",	#ENOTCONN
-	[108] = " Cannot send after transport endpoint shutdown", #ESHUTDOWN
-	[109] = "Too many references: cannot splice",	#ETOOMANYREFS
-	[110] = "Connection timed out",			#ETIMEDOUT
-	[111] = "Connection refused",			#ECONNREFUSED
-	[112] = "Host is down",				#EHOSTDOWN
-	[113] = "No route to host",			#EHOSTUNREACH
-	[114] = "Operation already in progress",	#EALREADY
-	[115] = "Operation now in progress",		#EINPROGRESS
-	[116] = "Stale NFS file handle",		#ESTALE
-	[117] = "Structure needs cleaning",		#EUCLEAN
-	[118] = "Not a XENIX named type file",		#ENOTNAM
-	[119] = "No XENIX semaphores available",	#ENAVAIL
-	[120] = "Is a named type file",			#EISNAM
-	[121] = "Remote I/O error",			#EREMOTEIO
-	[122] = "Quota exceeded",			#EDQUOT
-	[123] = "No medium found",			#ENOMEDIUM
-	[124] = "Wrong medium type",			#EMEDIUMTYPE
-	[125] = "Operation Canceled",			#ECANCELED
-	[126] = "Required key not available",		#ENOKEY
-	[127] = "Key has expired",			#EKEYEXPIRED
-	[128] = "Key has been revoked",			#EKEYREVOKED
-	[129] = "Key was rejected by service",		#EKEYREJECTED
-	[130] = "Owner died",				#EOWNERDEAD
-	[131] = "State not recoverable",		#ENOTRECOVERABLE
-
-}
-
-trace syscalls:sys_exit_* {
-	if (arg2 < 0) {
-		local errno = -arg2
-		printf("%-15s%-20s\t%d\t%-30s\n",
-			execname(), argname, errno, errdesc[errno])
-	}
-}
diff --git a/drivers/staging/ktap/scripts/syscalls/sctop.kp b/drivers/staging/ktap/scripts/syscalls/sctop.kp
deleted file mode 100644
index 6df45cb98178..000000000000
--- a/drivers/staging/ktap/scripts/syscalls/sctop.kp
+++ /dev/null
@@ -1,14 +0,0 @@
-#! /usr/bin/env ktap
-
-#this script is broken, fix it soon.
-s = {}
-
-trace syscalls:sys_enter_* {
-	s[argname] += 1
-}
-
-tick-5s {
-	ansi.clear_screen()
-	histogram(s)
-	delete(s)
-}
diff --git a/drivers/staging/ktap/scripts/syscalls/syscalls.kp b/drivers/staging/ktap/scripts/syscalls/syscalls.kp
deleted file mode 100644
index 8bbaacad68ac..000000000000
--- a/drivers/staging/ktap/scripts/syscalls/syscalls.kp
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/usr/bin/env ktap
-
-trace syscalls:* {
-	print(cpu(), pid(), execname(), argevent)
-}
-
diff --git a/drivers/staging/ktap/scripts/syscalls/syscalls_count.kp b/drivers/staging/ktap/scripts/syscalls/syscalls_count.kp
deleted file mode 100644
index 363c6226e8a9..000000000000
--- a/drivers/staging/ktap/scripts/syscalls/syscalls_count.kp
+++ /dev/null
@@ -1,56 +0,0 @@
-#!/usr/bin/env ktap
-
-s = aggr_table()
-
-trace syscalls:sys_enter_* {
-	s[argname] = count()
-}
-
-trace_end {
-	histogram(s)
-}
-
-print("Press Control-C to stop.")
-
-#Result:
-#
-#[root@jovi ktap]# ./ktap scripts/syscalls_histogram.kp
-#^C
-#                          value ------------- Distribution ------------- count
-#        sys_enter_rt_sigprocmask |@@@@@@                                 326
-#                  sys_enter_read |@@@@@                                  287
-#                 sys_enter_close |@@@@                                   236
-#                  sys_enter_open |@@@@                                   222
-#                sys_enter_stat64 |@@                                     132
-#                sys_enter_select |@@                                     123
-#          sys_enter_rt_sigaction |@@                                     107
-#                  sys_enter_poll |@                                      72
-#                 sys_enter_write |@                                      70
-#            sys_enter_mmap_pgoff |@                                      58
-#               sys_enter_fstat64 |                                       41
-#             sys_enter_nanosleep |                                       23
-#                sys_enter_access |                                       20
-#              sys_enter_mprotect |                                       18
-#               sys_enter_geteuid |                                       17
-#               sys_enter_getegid |                                       16
-#                sys_enter_getuid |                                       16
-#                sys_enter_getgid |                                       16
-#                   sys_enter_brk |                                       15
-#               sys_enter_waitpid |                                       11
-#                  sys_enter_time |                                       10
-#                 sys_enter_ioctl |                                       9
-#                sys_enter_munmap |                                       9
-#               sys_enter_fcntl64 |                                       7
-#                  sys_enter_dup2 |                                       7
-#                 sys_enter_clone |                                       6
-#            sys_enter_exit_group |                                       6
-#                sys_enter_execve |                                       4
-#                  sys_enter_pipe |                                       3
-#          sys_enter_gettimeofday |                                       3
-#              sys_enter_getdents |                                       2
-#             sys_enter_getgroups |                                       2
-#              sys_enter_statfs64 |                                       2
-#                 sys_enter_lseek |                                       2
-#                sys_enter_openat |                                       1
-#              sys_enter_newuname |                                       1
-
diff --git a/drivers/staging/ktap/scripts/syscalls/syscalls_count_by_proc.kp b/drivers/staging/ktap/scripts/syscalls/syscalls_count_by_proc.kp
deleted file mode 100644
index 7b7d722b893d..000000000000
--- a/drivers/staging/ktap/scripts/syscalls/syscalls_count_by_proc.kp
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/usr/bin/env ktap
-
-s = aggr_table()
-
-trace syscalls:sys_enter_* {
-	s[execname()] = count()
-}
-
-trace_end {
-	histogram(s)
-}
-
-print("Press Control-C to stop.")
-
-#Result:
-#
-#[root@jovi ktap]# ./ktap scripts/syscalls_histogram2.kp
-#^C
-#                          value ------------- Distribution ------------- count
-#                            sshd |@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@      196
-#                          iscsid |@@@@                                   24
-#                        sendmail |@                                      9
-
-
diff --git a/drivers/staging/ktap/scripts/tracepoints/eventcount.kp b/drivers/staging/ktap/scripts/tracepoints/eventcount.kp
deleted file mode 100644
index 9bc357fca56b..000000000000
--- a/drivers/staging/ktap/scripts/tracepoints/eventcount.kp
+++ /dev/null
@@ -1,212 +0,0 @@
-#!/usr/bin/env ktap
-
-# showing all tracepoints in histogram style
-
-s = {}
-
-trace *:* {
-	s[argname] += 1
-}
-
-trace_end {
-	histogram(s)
-}
-
-print("Press Control-C to stop.")
-
-#Results:
-#^C
-#
-#                          value ------------- Distribution ------------- count
-#                 rcu_utilization |@@@@@                                  225289
-#                        cpu_idle |@@@                                    120168
-#                    sched_wakeup |@@                                     91950
-#                    timer_cancel |@@                                     91232
-#                     timer_start |@@                                     91201
-#                sched_stat_sleep |@@                                     90981
-#               timer_expire_exit |@@                                     90634
-#              timer_expire_entry |@@                                     90625
-#                  hrtimer_cancel |@                                      75411
-#                   hrtimer_start |@                                      74946
-#                   softirq_raise |@                                      63117
-#                    softirq_exit |@                                      63109
-#                   softirq_entry |@                                      63094
-#                    sched_switch |@                                      62331
-#                 sched_stat_wait |@                                      60491
-#             hrtimer_expire_exit |@                                      47538
-#            hrtimer_expire_entry |@                                      47530
-#              sched_stat_runtime |                                       2780
-#                 kmem_cache_free |                                       2684
-#                kmem_cache_alloc |                                       2415
-#                           kfree |                                       2288
-#                        sys_exit |                                       2145
-#                       sys_enter |                                       2145
-#         sys_exit_rt_sigprocmask |                                       1000
-#        sys_enter_rt_sigprocmask |                                       1000
-#                      timer_init |                                       912
-#              sched_stat_blocked |                                       685
-#                         kmalloc |                                       667
-#           workqueue_execute_end |                                       621
-#         workqueue_execute_start |                                       621
-#                sys_enter_select |                                       566
-#                 sys_exit_select |                                       566
-#                  sys_enter_read |                                       526
-#                   sys_exit_read |                                       526
-#                    mm_page_free |                                       478
-#                   mm_page_alloc |                                       427
-#            mm_page_free_batched |                                       382
-#                   net_dev_queue |                                       296
-#                    net_dev_xmit |                                       296
-#                     consume_skb |                                       296
-#                  sys_exit_write |                                       290
-#                 sys_enter_write |                                       290
-#                       kfree_skb |                                       289
-#           kmem_cache_alloc_node |                                       269
-#                    kmalloc_node |                                       263
-#                 sys_enter_close |                                       249
-#                  sys_exit_close |                                       249
-#                    hrtimer_init |                                       248
-#               netif_receive_skb |                                       242
-#                  sys_enter_open |                                       237
-#                   sys_exit_open |                                       237
-#                       napi_poll |                                       226
-#              sched_migrate_task |                                       207
-#                   sys_exit_poll |                                       173
-#                  sys_enter_poll |                                       173
-#            workqueue_queue_work |                                       152
-#         workqueue_activate_work |                                       152
-#                sys_enter_stat64 |                                       133
-#                 sys_exit_stat64 |                                       133
-#           sys_exit_rt_sigaction |                                       133
-#          sys_enter_rt_sigaction |                                       133
-#               irq_handler_entry |                                       125
-#                irq_handler_exit |                                       125
-#       mm_page_alloc_zone_locked |                                       99
-#             sys_exit_mmap_pgoff |                                       66
-#            sys_enter_mmap_pgoff |                                       66
-#                sys_exit_fstat64 |                                       54
-#               sys_enter_fstat64 |                                       54
-#             sys_enter_nanosleep |                                       51
-#              sys_exit_nanosleep |                                       51
-#                 block_bio_queue |                                       46
-#                 block_bio_remap |                                       46
-#              block_bio_complete |                                       46
-#                  mix_pool_bytes |                                       44
-#              mm_page_pcpu_drain |                                       31
-#                   sys_exit_time |                                       23
-#                  sys_enter_time |                                       23
-#                 sys_exit_access |                                       20
-#                sys_enter_access |                                       20
-#           mix_pool_bytes_nolock |                                       18
-#              sys_enter_mprotect |                                       18
-#               sys_exit_mprotect |                                       18
-#               sys_enter_geteuid |                                       17
-#                sys_exit_geteuid |                                       17
-#                sys_enter_munmap |                                       17
-#                 sys_exit_munmap |                                       17
-#                     block_getrq |                                       16
-#                sys_enter_getuid |                                       16
-#                sys_enter_getgid |                                       16
-#                 sys_exit_getgid |                                       16
-#                 sys_exit_getuid |                                       16
-#                  block_rq_issue |                                       16
-#         scsi_dispatch_cmd_start |                                       16
-#               block_rq_complete |                                       16
-#          scsi_dispatch_cmd_done |                                       16
-#               sys_enter_getegid |                                       16
-#                sys_exit_getegid |                                       16
-#                 block_rq_insert |                                       16
-#         skb_copy_datagram_iovec |                                       15
-#                   sys_enter_brk |                                       15
-#                    sys_exit_brk |                                       15
-#             credit_entropy_bits |                                       14
-#                   wbc_writepage |                                       14
-#                  sys_exit_clone |                                       12
-#              block_touch_buffer |                                       12
-#              sched_process_wait |                                       11
-#               sys_enter_waitpid |                                       11
-#                sys_exit_waitpid |                                       11
-#               writeback_written |                                       10
-#                 writeback_start |                                       10
-#              writeback_queue_io |                                       10
-#     ext4_es_lookup_extent_enter |                                       9
-#                 sys_enter_ioctl |                                       9
-#                  sys_exit_ioctl |                                       9
-#       ext4_ext_map_blocks_enter |                                       9
-#        ext4_ext_map_blocks_exit |                                       9
-#      ext4_es_lookup_extent_exit |                                       9
-#           ext4_es_insert_extent |                                       9
-#            ext4_ext_show_extent |                                       8
-#                 extract_entropy |                                       8
-#ext4_es_find_delayed_extent_exit |                                       8
-# ext4_es_find_delayed_extent_... |                                       8
-#         writeback_pages_written |                                       7
-#                   sys_exit_dup2 |                                       7
-#                  sys_enter_dup2 |                                       7
-#                 signal_generate |                                       7
-#               sys_enter_fcntl64 |                                       7
-#                sys_exit_fcntl64 |                                       7
-#              global_dirty_state |                                       7
-#     writeback_dirty_inode_start |                                       7
-#             block_bio_backmerge |                                       7
-#           writeback_dirty_inode |                                       7
-#                sched_wakeup_new |                                       6
-#              sched_process_free |                                       6
-#            sys_enter_exit_group |                                       6
-#                    task_newtask |                                       6
-#                 sys_enter_clone |                                       6
-#              sched_process_fork |                                       6
-#              sched_process_exit |                                       6
-#           sys_exit_gettimeofday |                                       5
-#                  signal_deliver |                                       5
-#          sys_enter_gettimeofday |                                       5
-#          writeback_single_inode |                                       4
-#                sys_enter_execve |                                       4
-#                     task_rename |                                       4
-#              sched_process_exec |                                       4
-#              block_dirty_buffer |                                       4
-#                 sys_exit_execve |                                       4
-#                    block_unplug |                                       4
-#               sched_stat_iowait |                                       4
-#    writeback_single_inode_start |                                       4
-#                      block_plug |                                       4
-#           writeback_write_inode |                                       3
-#                  sys_enter_pipe |                                       3
-#            writeback_dirty_page |                                       3
-#     writeback_write_inode_start |                                       3
-#           ext4_mark_inode_dirty |                                       3
-#              ext4_journal_start |                                       3
-#                   sys_exit_pipe |                                       3
-#           jbd2_drop_transaction |                                       2
-#             jbd2_commit_locking |                                       2
-#            jbd2_commit_flushing |                                       2
-#               jbd2_handle_start |                                       2
-#                  jbd2_run_stats |                                       2
-#               sys_exit_getdents |                                       2
-#           jbd2_checkpoint_stats |                                       2
-#             sys_enter_getgroups |                                       2
-#               jbd2_start_commit |                                       2
-#                 jbd2_end_commit |                                       2
-#              ext4_da_writepages |                                       2
-#               jbd2_handle_stats |                                       2
-#              sys_enter_statfs64 |                                       2
-#               sys_exit_statfs64 |                                       2
-#              sys_exit_getgroups |                                       2
-#                  sys_exit_lseek |                                       2
-#                 sys_enter_lseek |                                       2
-#              sys_enter_getdents |                                       2
-#             ext4_da_write_pages |                                       2
-#             jbd2_commit_logging |                                       2
-#             ext4_request_blocks |                                       1
-#                 sys_exit_openat |                                       1
-#     ext4_discard_preallocations |                                       1
-#              ext4_mballoc_alloc |                                       1
-#                sys_enter_openat |                                       1
-#       ext4_da_writepages_result |                                       1
-#            ext4_allocate_blocks |                                       1
-#              sys_enter_newuname |                                       1
-#    ext4_da_update_reserve_space |                                       1
-# ext4_get_reserved_cluster_alloc |                                       1
-#               sys_exit_newuname |                                       1
-#           writeback_wake_thread |                                       1
-
diff --git a/drivers/staging/ktap/scripts/tracepoints/eventcount_by_proc.kp b/drivers/staging/ktap/scripts/tracepoints/eventcount_by_proc.kp
deleted file mode 100644
index 8706f73d5b40..000000000000
--- a/drivers/staging/ktap/scripts/tracepoints/eventcount_by_proc.kp
+++ /dev/null
@@ -1,59 +0,0 @@
-#!/usr/bin/env ktap
-
-# showing all tracepoints in histogram style
-
-s = aggr_table()
-
-trace *:* {
-	s[execname()] = count()
-}
-
-trace_end {
-	histogram(s)
-}
-
-print("Press Control-C to stop.")
-
-#Results:
-#^C
-#                          value ------------- Distribution ------------- count
-#                       swapper/0 |@@@@@@@@@@@@                           354378
-#                       swapper/1 |@@@@@@@@@@                             284984
-#                              ps |@@@@                                   115697
-#                        ksmtuned |@@@                                    95857
-#                          iscsid |@@                                     80008
-#                             awk |@                                      30354
-#                      irqbalance |                                       16530
-#                       rcu_sched |                                       15892
-#                        sendmail |                                       14463
-#                     kworker/0:1 |                                       10540
-#                    kworker/u4:2 |                                       9250
-#                     kworker/1:2 |                                       7943
-#                           sleep |                                       7555
-#                           crond |                                       3911
-#                     ksoftirqd/0 |                                       3817
-#                            sshd |                                       2849
-#                 systemd-journal |                                       2209
-#                     migration/1 |                                       1601
-#                     migration/0 |                                       1350
-#                        dhclient |                                       1343
-#                 nm-dhcp-client. |                                       1208
-#                     ksoftirqd/1 |                                       1064
-#                      watchdog/1 |                                       966
-#                      watchdog/0 |                                       964
-#                      khugepaged |                                       776
-#                     dbus-daemon |                                       611
-#                         rpcbind |                                       607
-#                           gdbus |                                       529
-#                  NetworkManager |                                       399
-#                     jbd2/dm-1-8 |                                       378
-#                   modem-manager |                                       184
-#                  abrt-watch-log |                                       157
-#                         polkitd |                                       156
-#                   rs:main Q:Reg |                                       153
-#                    avahi-daemon |                                       151
-#                        rsyslogd |                                       102
-#                         systemd |                                       96
-#                    kworker/0:1H |                                       45
-#                          smartd |                                       30
-
diff --git a/drivers/staging/ktap/scripts/tracepoints/tracepoints.kp b/drivers/staging/ktap/scripts/tracepoints/tracepoints.kp
deleted file mode 100644
index 5d088695bbf2..000000000000
--- a/drivers/staging/ktap/scripts/tracepoints/tracepoints.kp
+++ /dev/null
@@ -1,6 +0,0 @@
-#!/usr/bin/env ktap
-
-trace *:* {
-	print(cpu(), pid(), execname(), argevent)
-}
-
diff --git a/drivers/staging/ktap/scripts/userspace/uprobes-malloc.kp b/drivers/staging/ktap/scripts/userspace/uprobes-malloc.kp
deleted file mode 100644
index 14c172f8f327..000000000000
--- a/drivers/staging/ktap/scripts/userspace/uprobes-malloc.kp
+++ /dev/null
@@ -1,9 +0,0 @@
-#!/usr/bin/env ktap
-
-trace probe:/lib/libc.so.6:0x000773c0 {
-	print("entry:", execname(), argevent)
-}
-
-trace probe:/lib/libc.so.6:0x000773c0%return {
-	print("exit:", execname(), argevent)
-}
diff --git a/drivers/staging/ktap/test/aggr_table.kp b/drivers/staging/ktap/test/aggr_table.kp
deleted file mode 100644
index 985b634952c1..000000000000
--- a/drivers/staging/ktap/test/aggr_table.kp
+++ /dev/null
@@ -1,50 +0,0 @@
-#!/usr/bin/env ktap
-
-function failed() {
-	printf("failed\n");
-	exit(-1);
-}
-
-#---------------------------------#
-
-s = aggr_table()
-
-s["count"] = count()
-s["count"] = count()
-s["count"] = count()
-
-s["max"] = max(1)
-s["max"] = max(0)
-s["max"] = max(100)
-
-s["min"] = min(50)
-s["min"] = min(2)
-s["min"] = min(100)
-
-s["sum"] = sum(10)
-s["sum"] = sum(20)
-s["sum"] = sum(30)
-
-s["avg"] = avg(10)
-s["avg"] = avg(20)
-s["avg"] = avg(30)
-
-if (s["count"] != 3) {
-	failed()
-}
-
-if (s["max"] != 100) {
-	failed()
-}
-
-if (s["min"] != 2) {
-	failed()
-}
-
-if (s["sum"] != 60) {
-	failed()
-}
-
-if (s["avg"] != 20) {
-	failed()
-}
diff --git a/drivers/staging/ktap/test/ansi.kp b/drivers/staging/ktap/test/ansi.kp
deleted file mode 100644
index e8a27835ce75..000000000000
--- a/drivers/staging/ktap/test/ansi.kp
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/usr/bin/env ktap
-
-ansi.clear_screen()
-
-ansi.set_color(32)
-printf("this line should be Green color\n")
-
-ansi.set_color(31)
-printf("this line should be Red color\n")
-
-ansi.set_color2(34, 43)
-printf("this line should be Blue color, with Yellow background\n")
-
-ansi.reset_color()
-ansi.set_color3(34, 46, 4)
-printf("this line should be Blue color, with Cyan background, underline single attribute\n")
-
-ansi.reset_color()
-ansi.new_line()
-
diff --git a/drivers/staging/ktap/test/arg.kp b/drivers/staging/ktap/test/arg.kp
deleted file mode 100644
index 0cf16ebf3227..000000000000
--- a/drivers/staging/ktap/test/arg.kp
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/usr/bin/env ktap
-
-function failed() {
-	printf("failed\n");
-	exit(-1);
-}
-
-#-----------------------------------------#
-
-if (!arg[0]) {
-	failed()
-}
-
-if (arg[1] != 1) {
-	failed()
-}
-
-if (arg[2] != "testing") {
-	failed()
-}
-
-if (arg[3] != "2 3 4") {
-	failed()
-}
diff --git a/drivers/staging/ktap/test/arith.kp b/drivers/staging/ktap/test/arith.kp
deleted file mode 100644
index 32880a140c69..000000000000
--- a/drivers/staging/ktap/test/arith.kp
+++ /dev/null
@@ -1,27 +0,0 @@
-#!/usr/bin/env ktap
-
-function failed() {
-	printf("failed\n");
-	exit(-1);
-}
-
-#-----------------------------------------#
-
-a = 4
-b = 5
-
-if ((a + b) != 9) {
-	failed()
-}
-
-if ((a - b) != -1) {
-	failed()
-}
-
-if ((a % b) != 4) {
-	failed()
-}
-
-if ((a / b) != 0) {
-	failed()
-}
diff --git a/drivers/staging/ktap/test/bench/sembench.c b/drivers/staging/ktap/test/bench/sembench.c
deleted file mode 100644
index 08119341c91d..000000000000
--- a/drivers/staging/ktap/test/bench/sembench.c
+++ /dev/null
@@ -1,556 +0,0 @@
-/*
- * copyright Oracle 2007.  Licensed under GPLv2
- * To compile: gcc -Wall -o sembench sembench.c -lpthread
- *
- * usage: sembench -t thread count -w wakenum -r runtime -o op
- * op can be: 0 (ipc sem) 1 (nanosleep) 2 (futexes)
- *
- * example:
- *	sembench -t 1024 -w 512 -r 60 -o 2
- * runs 1024 threads, waking up 512 at a time, running for 60 seconds using
- * futex locking.
- *
- */
-#define  _GNU_SOURCE
-#define _POSIX_C_SOURCE 199309
-#include <fcntl.h>
-#include <sched.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/sem.h>
-#include <sys/ipc.h>
-#include <sys/types.h>
-#include <sys/mman.h>
-#include <pthread.h>
-#include <unistd.h>
-#include <string.h>
-#include <time.h>
-#include <sys/time.h>
-#include <sys/syscall.h>
-#include <errno.h>
-
-#define VERSION "0.2"
-
-/* futexes have been around since 2.5.something, but it still seems I
- * need to make my own syscall.  Sigh.
- */
-#define FUTEX_WAIT              0
-#define FUTEX_WAKE              1
-#define FUTEX_FD                2
-#define FUTEX_REQUEUE           3
-#define FUTEX_CMP_REQUEUE       4
-#define FUTEX_WAKE_OP           5
-static inline int futex (int *uaddr, int op, int val,
-			 const struct timespec *timeout,
-			 int *uaddr2, int val3)
-{
-	return syscall(__NR_futex, uaddr, op, val, timeout, uaddr2, val3);
-}
-
-static void smp_mb(void)
-{
-	__sync_synchronize();
-}
-
-static int all_done = 0;
-static int timeout_test = 0;
-
-#define SEMS_PERID 250
-
-struct sem_operations;
-
-struct lockinfo {
-	unsigned long id;
-	unsigned long index;
-	int data;
-	pthread_t tid;
-	struct lockinfo *next;
-	struct sem_operations *ops;
-	unsigned long ready;
-};
-
-struct sem_wakeup_info {
-	int wakeup_count;
-	struct sembuf sb[SEMS_PERID];
-};
-
-struct sem_operations {
-	void (*wait)(struct lockinfo *l);
-	int (*wake)(struct sem_wakeup_info *wi, int num_semids, int num);
-	void (*setup)(struct sem_wakeup_info **wi, int num_semids);
-	void (*cleanup)(int num_semids);
-	char *name;
-};
-
-int *semid_lookup = NULL;
-
-pthread_mutex_t worklist_mutex = PTHREAD_MUTEX_INITIALIZER;
-static unsigned long total_burns = 0;
-static unsigned long min_burns = ~0UL;
-static unsigned long max_burns = 0;
-
-/* currently running threads */
-static int thread_count = 0;
-
-struct lockinfo *worklist = NULL;
-static int workers_started = 0;
-
-/* total threads started */
-static int num_threads = 2048;
-
-static void worklist_add(struct lockinfo *l)
-{
-	smp_mb();
-	l->ready = 1;
-}
-
-static struct lockinfo *worklist_rm(void)
-{
-	static int last_index = 0;
-	int i;
-	struct lockinfo *l;
-
-	for (i = 0; i < num_threads; i++) {
-		int test = (last_index + i) % num_threads;
-
-		l = worklist + test;
-		smp_mb();
-		if (l->ready) {
-			l->ready = 0;
-			last_index = test;
-			return l;
-		}
-	}
-	return NULL;
-}
-
-/* ipc semaphore post& wait */
-void wait_ipc_sem(struct lockinfo *l)
-{
-	struct sembuf sb;
-	int ret;
-	struct timespec *tvp = NULL;
-	struct timespec tv = { 0, 1 };
-
-	sb.sem_num = l->index;
-	sb.sem_flg = 0;
-
-	sb.sem_op = -1;
-	l->data = 1;
-
-	if (timeout_test && (l->id % 5) == 0)
-		tvp = &tv;
-
-	worklist_add(l);
-	ret = semtimedop(semid_lookup[l->id], &sb, 1, tvp);
-
-	while(l->data != 0 && tvp) {
-		struct timespec tv2 = { 0, 500 };
-		nanosleep(&tv2, NULL);
-	}
-
-	if (l->data != 0) {
-		if (tvp)
-			return;
-		fprintf(stderr, "wakeup without data update\n");
-		exit(1);
-	}
-	if (ret) {
-		if (errno == EAGAIN && tvp)
-			return;
-		perror("semtimed op");
-		exit(1);
-	}
-}
-
-int ipc_wake_some(struct sem_wakeup_info *wi, int num_semids, int num)
-{
-	int i;
-	int ret;
-	struct lockinfo *l;
-	int found = 0;
-
-	for (i = 0; i < num_semids; i++) {
-		wi[i].wakeup_count = 0;
-	}
-	while(num > 0) {
-		struct sembuf *sb;
-		l = worklist_rm();
-		if (!l)
-			break;
-		if (l->data != 1)
-			fprintf(stderr, "warning, lockinfo data was %d\n",
-				l->data);
-		l->data = 0;
-		sb = wi[l->id].sb + wi[l->id].wakeup_count;
-		sb->sem_num = l->index;
-		sb->sem_op = 1;
-		sb->sem_flg = IPC_NOWAIT;
-		wi[l->id].wakeup_count++;
-		found++;
-		num--;
-	}
-	if (!found)
-		return 0;
-	for (i = 0; i < num_semids; i++) {
-		int wakeup_total;
-		int cur;
-		int offset = 0;
-		if (!wi[i].wakeup_count)
-			continue;
-		wakeup_total = wi[i].wakeup_count;
-		while(wakeup_total > 0) {
-			cur = wakeup_total > 64 ? 64 : wakeup_total;
-			ret = semtimedop(semid_lookup[i], wi[i].sb + offset,
-					 cur, NULL);
-			if (ret) {
-				perror("semtimedop");
-				exit(1);
-			}
-			offset += cur;
-			wakeup_total -= cur;
-		}
-	}
-	return found;
-}
-
-void setup_ipc_sems(struct sem_wakeup_info **wi, int num_semids)
-{
-	int i;
-	*wi = malloc(sizeof(**wi) * num_semids);
-	semid_lookup = malloc(num_semids * sizeof(int));
-	for(i = 0; i < num_semids; i++) {
-		semid_lookup[i] = semget(IPC_PRIVATE, SEMS_PERID,
-					 IPC_CREAT | 0777);
-		if (semid_lookup[i] < 0) {
-			perror("semget");
-			exit(1);
-		}
-	}
-	sleep(10);
-}
-
-void cleanup_ipc_sems(int num)
-{
-	int i;
-	for (i = 0; i < num; i++) {
-		semctl(semid_lookup[i], 0, IPC_RMID);
-	}
-}
-
-struct sem_operations ipc_sem_ops = {
-	.wait = wait_ipc_sem,
-	.wake = ipc_wake_some,
-	.setup = setup_ipc_sems,
-	.cleanup = cleanup_ipc_sems,
-	.name = "ipc sem operations",
-};
-
-/* futex post & wait */
-void wait_futex_sem(struct lockinfo *l)
-{
-	int ret;
-	l->data = 1;
-	worklist_add(l);
-	while(l->data == 1) {
-		ret = futex(&l->data, FUTEX_WAIT, 1, NULL, NULL, 0);
-		/*
-		if (ret && ret != EWOULDBLOCK) {
-			perror("futex wait");
-			exit(1);
-		}*/
-	}
-}
-
-int futex_wake_some(struct sem_wakeup_info *wi, int num_semids, int num)
-{
-	int i;
-	int ret;
-	struct lockinfo *l;
-	int found = 0;
-
-	for (i = 0; i < num; i++) {
-		l = worklist_rm();
-		if (!l)
-			break;
-		if (l->data != 1)
-			fprintf(stderr, "warning, lockinfo data was %d\n",
-				l->data);
-		l->data = 0;
-		ret = futex(&l->data, FUTEX_WAKE, 1, NULL, NULL, 0);
-		if (ret < 0) {
-			perror("futex wake");
-			exit(1);
-		}
-		found++;
-	}
-	return found;
-}
-
-void setup_futex_sems(struct sem_wakeup_info **wi, int num_semids)
-{
-	return;
-}
-
-void cleanup_futex_sems(int num)
-{
-	return;
-}
-
-struct sem_operations futex_sem_ops = {
-	.wait = wait_futex_sem,
-	.wake = futex_wake_some,
-	.setup = setup_futex_sems,
-	.cleanup = cleanup_futex_sems,
-	.name = "futex sem operations",
-};
-
-/* nanosleep sems here */
-void wait_nanosleep_sem(struct lockinfo *l)
-{
-	int ret;
-	struct timespec tv = { 0, 1000000 };
-	int count = 0;
-
-	l->data = 1;
-	worklist_add(l);
-	while(l->data) {
-		ret = nanosleep(&tv, NULL);
-		if (ret) {
-			perror("nanosleep");
-			exit(1);
-		}
-		count++;
-	}
-}
-
-int nanosleep_wake_some(struct sem_wakeup_info *wi, int num_semids, int num)
-{
-	int i;
-	struct lockinfo *l;
-
-	for (i = 0; i < num; i++) {
-		l = worklist_rm();
-		if (!l)
-			break;
-		if (l->data != 1)
-			fprintf(stderr, "warning, lockinfo data was %d\n",
-				l->data);
-		l->data = 0;
-	}
-	return i;
-}
-
-void setup_nanosleep_sems(struct sem_wakeup_info **wi, int num_semids)
-{
-	return;
-}
-
-void cleanup_nanosleep_sems(int num)
-{
-	return;
-}
-
-struct sem_operations nanosleep_sem_ops = {
-	.wait = wait_nanosleep_sem,
-	.wake = nanosleep_wake_some,
-	.setup = setup_nanosleep_sems,
-	.cleanup = cleanup_nanosleep_sems,
-	.name = "nano sleep sem operations",
-};
-
-void *worker(void *arg)
-{
-	struct lockinfo *l = (struct lockinfo *)arg;
-	int burn_count = 0;
-	pthread_t tid = pthread_self();
-	size_t pagesize = getpagesize();
-	char *buf = malloc(pagesize);
-
-	if (!buf) {
-		perror("malloc");
-		exit(1);
-	}
-
-	l->tid = tid;
-	workers_started = 1;
-	smp_mb();
-
-	while(!all_done) {
-		l->ops->wait(l);
-		if (all_done)
-			break;
-		burn_count++;
-	}
-	pthread_mutex_lock(&worklist_mutex);
-	total_burns += burn_count;
-	if (burn_count < min_burns)
-		min_burns = burn_count;
-	if (burn_count > max_burns)
-		max_burns = burn_count;
-	thread_count--;
-	pthread_mutex_unlock(&worklist_mutex);
-	return (void *)0;
-}
-
-void print_usage(void)
-{
-	printf("usage: sembench [-t threads] [-w wake incr] [-r runtime]");
-	printf("                [-o num] (0=ipc, 1=nanosleep, 2=futex)\n");
-	exit(1);
-}
-
-#define NUM_OPERATIONS 3
-struct sem_operations *allops[NUM_OPERATIONS] = { &ipc_sem_ops,
-						&nanosleep_sem_ops,
-						&futex_sem_ops};
-
-int main(int ac, char **av) {
-	int ret;
-	int i;
-	int semid = 0;
-	int sem_num = 0;
-	int burn_count = 0;
-	struct sem_wakeup_info *wi = NULL;
-	struct timeval start;
-	struct timeval now;
-	int num_semids = 0;
-	int wake_num = 256;
-	int run_secs = 30;
-	int pagesize = getpagesize();
-	char *buf = malloc(pagesize);
-	struct sem_operations *ops = allops[0];
-	cpu_set_t cpu_mask;
-	cpu_set_t target_mask;
-	int target_cpu = 0;
-	int max_cpu = -1;
-
-	if (!buf) {
-		perror("malloc");
-		exit(1);
-	}
-	for (i = 1; i < ac; i++) {
-		if (strcmp(av[i], "-t") == 0) {
-			if (i == ac -1)
-				print_usage();
-			num_threads = atoi(av[i+1]);
-			i++;
-		} else if (strcmp(av[i], "-w") == 0) {
-			if (i == ac -1)
-				print_usage();
-			wake_num = atoi(av[i+1]);
-			i++;
-		} else if (strcmp(av[i], "-r") == 0) {
-			if (i == ac -1)
-				print_usage();
-			run_secs = atoi(av[i+1]);
-			i++;
-		} else if (strcmp(av[i], "-o") == 0) {
-			int index;
-			if (i == ac -1)
-				print_usage();
-			index = atoi(av[i+1]);
-			if (index >= NUM_OPERATIONS) {
-				fprintf(stderr, "invalid operations %d\n",
-					index);
-				exit(1);
-			}
-			ops = allops[index];
-			i++;
-		} else if (strcmp(av[i], "-T") == 0) {
-			timeout_test = 1;
-		} else if (strcmp(av[i], "-h") == 0) {
-			print_usage();
-		}
-	}
-	num_semids = (num_threads + SEMS_PERID - 1) / SEMS_PERID;
-	ops->setup(&wi, num_semids);
-
-	ret = sched_getaffinity(0, sizeof(cpu_set_t), &cpu_mask);
-	if (ret) {
-		perror("sched_getaffinity");
-		exit(1);
-	}
-	for (i = 0; i < CPU_SETSIZE; i++)
-		if (CPU_ISSET(i, &cpu_mask))
-			max_cpu = i;
-	if (max_cpu == -1) {
-		fprintf(stderr, "sched_getaffinity returned empty mask\n");
-		exit(1);
-	}
-
-	CPU_ZERO(&target_mask);
-
-	worklist = malloc(sizeof(*worklist) * num_threads);
-	memset(worklist, 0, sizeof(*worklist) * num_threads);
-
-	for (i = 0; i < num_threads; i++) {
-		struct lockinfo *l;
-		pthread_t tid;
-		thread_count++;
-		l = worklist + i;
-		if (!l) {
-			perror("malloc");
-			exit(1);
-		}
-		l->id = semid;
-		l->index = sem_num++;
-		l->ops = ops;
-		if (sem_num >= SEMS_PERID) {
-			semid++;
-			sem_num = 0;
-		}
-		ret = pthread_create(&tid, NULL, worker, (void *)l);
-		if (ret) {
-			perror("pthread_create");
-			exit(1);
-		}
-
-		while (!CPU_ISSET(target_cpu, &cpu_mask)) {
-			target_cpu++;
-			if (target_cpu > max_cpu)
-				target_cpu = 0;
-		}
-		CPU_SET(target_cpu, &target_mask);
-		ret = pthread_setaffinity_np(tid, sizeof(cpu_set_t),
-					     &target_mask);
-		CPU_CLR(target_cpu, &target_mask);
-		target_cpu++;
-
-		ret = pthread_detach(tid);
-		if (ret) {
-			perror("pthread_detach");
-			exit(1);
-		}
-	}
-	while(!workers_started) {
-		smp_mb();
-		usleep(200);
-	}
-	gettimeofday(&start, NULL);
-	fprintf(stderr, "main loop going\n");
-	while(1) {
-		ops->wake(wi, num_semids, wake_num);
-		burn_count++;
-		gettimeofday(&now, NULL);
-		if (now.tv_sec - start.tv_sec >= run_secs)
-			break;
-	}
-	fprintf(stderr, "all done\n");
-	all_done = 1;
-	while(thread_count > 0) {
-		ops->wake(wi, num_semids, wake_num);
-		usleep(200);
-	}
-	printf("%d threads, waking %d at a time\n", num_threads, wake_num);
-	printf("using %s\n", ops->name);
-	printf("main thread burns: %d\n", burn_count);
-	printf("worker burn count total %lu min %lu max %lu avg %lu\n",
-	       total_burns, min_burns, max_burns, total_burns / num_threads);
-	printf("run time %d seconds %lu worker burns per second\n",
-		(int)(now.tv_sec - start.tv_sec),
-		total_burns / (now.tv_sec - start.tv_sec));
-	ops->cleanup(num_semids);
-	return 0;
-}
-
diff --git a/drivers/staging/ktap/test/bench/test.sh b/drivers/staging/ktap/test/bench/test.sh
deleted file mode 100644
index 9f77969b6f2b..000000000000
--- a/drivers/staging/ktap/test/bench/test.sh
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/bin/sh
-
-gcc -o sembench sembench.c -O2 -lpthread
-
-COMMAND="./sembench -t 200 -w 20 -r 30 -o 2"
-
-echo -e "\n\t\tPass 1 without tracing"
-$COMMAND
-echo -e "\n\t\tPass 2 without tracing"
-$COMMAND
-echo -e "\n\t\tPass 3 without tracing"
-$COMMAND
-
-echo ""
-
-KTAP_ONE_LINER="trace syscalls:sys_*_futex {}"
-
-echo -e "\n\t\tPass 1 with tracing"
-../../ktap -e "$KTAP_ONE_LINER" -- $COMMAND
-echo -e "\n\t\tPass 2 with tracing"
-../../ktap -e "$KTAP_ONE_LINER" -- $COMMAND
-echo -e "\n\t\tPass 3 with tracing"
-../../ktap -e "$KTAP_ONE_LINER" -- $COMMAND
-
-rm -rf ./sembench
diff --git a/drivers/staging/ktap/test/concat.kp b/drivers/staging/ktap/test/concat.kp
deleted file mode 100644
index be77bb70ea8e..000000000000
--- a/drivers/staging/ktap/test/concat.kp
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/usr/bin/env ktap
-
-function failed() {
-	printf("failed\n");
-	exit(-1);
-}
-
-#----------------------------------------#
-
-a = "123"
-b = "456"
-
-if (a..b != "123456") {
-	failed()
-}
diff --git a/drivers/staging/ktap/test/count.kp b/drivers/staging/ktap/test/count.kp
deleted file mode 100644
index 26f962c227a4..000000000000
--- a/drivers/staging/ktap/test/count.kp
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/usr/bin/env ktap
-
-function failed() {
-	printf("failed\n");
-	exit(-1);
-}
-
-#---------------------------------------#
-
-t = {}
-
-t["key"] += 1
-if (t["key"] != 1) {
-	failed()
-}
-
-t["key"] += 1
-if (t["key"] != 2) {
-	failed()
-}
diff --git a/drivers/staging/ktap/test/fibonacci.kp b/drivers/staging/ktap/test/fibonacci.kp
deleted file mode 100644
index 7e141da0de42..000000000000
--- a/drivers/staging/ktap/test/fibonacci.kp
+++ /dev/null
@@ -1,36 +0,0 @@
-#!/usr/bin/env ktap
-
-function failed() {
-	printf("failed\n");
-	exit(-1);
-}
-
-#---------------fibonacci----------------
-
-
-#regular recursive fibonacci
-function fib(n) {
-	if (n < 2) {
-		return n
-	}
-	return fib(n-1) + fib(n-2)
-}
-
-if (fib(20) != 6765) {
-	failed()
-}
-
-#tail recursive fibonacci
-function fib(n) {
-	f = function (iter, res, next) {
-		if (iter == 0) {
-			return res;
-		}
-		return f(iter-1, next, res+next)
-	}
-	return f(n, 0, 1)
-}
-
-if (fib(20) != 6765) {
-	failed()
-}
diff --git a/drivers/staging/ktap/test/function.kp b/drivers/staging/ktap/test/function.kp
deleted file mode 100644
index bfbff2614104..000000000000
--- a/drivers/staging/ktap/test/function.kp
+++ /dev/null
@@ -1,88 +0,0 @@
-#!/usr/bin/env ktap
-
-function failed() {
-	printf("failed\n");
-	exit(-1);
-}
-
-### basic function call ###
-function f1(a, b) {
-	return a + b
-}
-
-if (f1(2, 3) != 5) {
-	failed();
-}
-
-### return string ###
-function f2() {
-	return "function return"
-}
-
-if (f2() != "function return") {
-	failed();
-}
-
-### mutli-value return ###
-function f3(a, b) {
-	return a+b, a-b;
-}
-
-c, d = f3(2, 3);
-if(c != 5 || d != -1) {
-	failed();
-}
-
-
-### closure testing ### 
-function f4() {
-	f5 = function(a, b) {
-		return a * b
-	}
-	return f5
-}
-
-local f = f4()
-if (f(9, 9) != 81) {
-	failed();
-}
-
-### closure with lexcial variable ### 
-# issue: variable cannot be local
-i = 1
-function f6() {
-	i = 5
-	f7 = function(a, b) {
-		return a * b + i
-	}
-	return f7
-}
-
-f = f6()
-if (f(9, 9) != 81 + i) {
-	failed();
-}
-
-i = 6
-if (f(9, 9) != 81 + i) {
-	failed();
-}
-
-### tail call
-### stack should not overflow in tail call mechanism
-a = 0
-function f8(i) {
-	if (i == 1000000) {
-		a = 1000000
-		return
-	}
-	# must add return here, otherwise stack overflow
-	return f8(i+1)
-}
-
-f8(0)
-if (a != 1000000) {
-	failed();
-}
-
-
diff --git a/drivers/staging/ktap/test/if.kp b/drivers/staging/ktap/test/if.kp
deleted file mode 100644
index 3122084af5ee..000000000000
--- a/drivers/staging/ktap/test/if.kp
+++ /dev/null
@@ -1,24 +0,0 @@
-#!/usr/bin/env ktap
-
-function failed() {
-	printf("failed\n");
-	exit(-1);
-}
-
-#-----------------------------------------#
-
-if (false) {
-	failed()
-}
-
-if (nil) {
-	failed()
-}
-
-# ktap only think false and nil is "real false", number 0 is true
-# it's same as lua
-# Might change it in future, to make similar with C
-if (0) {
-	#failed()
-}
-
diff --git a/drivers/staging/ktap/test/kprobe.kp b/drivers/staging/ktap/test/kprobe.kp
deleted file mode 100644
index 022d4a70b31f..000000000000
--- a/drivers/staging/ktap/test/kprobe.kp
+++ /dev/null
@@ -1,14 +0,0 @@
-#!/usr/bin/env ktap
-
-n = 0
-trace probe:schedule {
-	n = n + 1
-}
-
-tick-1s {
-	if (n == 0) {
-		printf("failed\n");
-	}
-	exit()
-}
-
diff --git a/drivers/staging/ktap/test/kretprobe.kp b/drivers/staging/ktap/test/kretprobe.kp
deleted file mode 100644
index e311e84c292f..000000000000
--- a/drivers/staging/ktap/test/kretprobe.kp
+++ /dev/null
@@ -1,14 +0,0 @@
-#!/usr/bin/env ktap
-
-n = 0
-trace probe:__schedule%return {
-	n = n + 1
-}
-
-tick-1s {
-	if (n == 0) {
-		printf("failed\n");
-	}
-	exit()
-}
-
diff --git a/drivers/staging/ktap/test/len.kp b/drivers/staging/ktap/test/len.kp
deleted file mode 100644
index 697d91553ba9..000000000000
--- a/drivers/staging/ktap/test/len.kp
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/usr/bin/env ktap
-
-function failed() {
-	printf("failed\n");
-	exit(-1);
-}
-
-#-----------------------------------------#
-
-a = "123456789"
-
-if (len(a) != 9) {
-	failed()
-}
-
-b = {}
-b[0] = 0
-b[1] = 1
-b["keys"] = "values"
-
-if (len(b) != 3) {
-	failed()
-}
-
-
diff --git a/drivers/staging/ktap/test/looping.kp b/drivers/staging/ktap/test/looping.kp
deleted file mode 100644
index fe48051a29c2..000000000000
--- a/drivers/staging/ktap/test/looping.kp
+++ /dev/null
@@ -1,40 +0,0 @@
-#!/usr/bin/env ktap
-
-function failed() {
-	printf("failed\n");
-	exit(-1);
-}
-
-### basic while-loop testing
-a = 1
-while (a < 1000) {
-	a = a + 1
-}
-
-if (a != 1000) {
-	failed()
-}
-
-### break testing
-### Note that ktap don't have continue keyword
-a = 1
-while (a < 1000) {
-	if (a == 10) {
-		break
-	}
-	a = a + 1
-}
-
-if (a != 10) {
-	failed()
-}
-
-### for-loop testing
-b=0
-for (c = 0, 1000, 1) {
-	b = b + 1
-}
-
-if (b != 1001) {
-	failed()
-}
diff --git a/drivers/staging/ktap/test/pairs.kp b/drivers/staging/ktap/test/pairs.kp
deleted file mode 100644
index cdf3825951dd..000000000000
--- a/drivers/staging/ktap/test/pairs.kp
+++ /dev/null
@@ -1,45 +0,0 @@
-#!/usr/bin/env ktap
-
-function failed() {
-	printf("failed\n");
-	exit(-1);
-}
-
-#-----------------------------------------#
-
-t = {}
-t[1] = 101
-t[2] = 102
-t[3] = 103
-t["key_1"] = "value_1"
-t["key_2"] = "value_2"
-t["key_3"] = "value_3"
-
-local n = 0
-
-for (k, v in pairs(t)) {
-	n = n + 1
-
-	if (k == 1 && v != 101) {
-		failed()
-	}
-	if (k == 2 && v != 102) {
-		failed()
-	}
-	if (k == 3 && v != 103) {
-		failed()
-	}
-	if (k == "key_1" && v != "value_1") {
-		failed()
-	}
-	if (k == "key_2" && v != "value_2") {
-		failed()
-	}
-	if (k == "key_3" && v != "value_3") {
-		failed()
-	}
-}
-
-if (n != len(t)) {
-	failed()
-}
diff --git a/drivers/staging/ktap/test/run_test.sh b/drivers/staging/ktap/test/run_test.sh
deleted file mode 100644
index b98af2659123..000000000000
--- a/drivers/staging/ktap/test/run_test.sh
+++ /dev/null
@@ -1,58 +0,0 @@
-#!/bin/sh
-
-rmmod ktapvm > /dev/null 2>&1
-insmod ../ktapvm.ko
-if test $? -ne 0; then
-	echo "Cannot insmod ../ktapvm.ko"
-	exit -1
-fi
-
-KTAP=../ktap
-function ktaprun {
-	echo "$KTAP $@"
-	$KTAP $@
-}
-
-
-
-#######################################################
-# Use $ktap directly if the arguments contains strings
-$KTAP arg.kp 1 testing "2 3 4"
-$KTAP -e 'print("one-liner testing")'
-$KTAP -e 'exit()'
-$KTAP -o /dev/null -e 'trace syscalls:* { print(argevent) }' \
-		-- ls > /devnull
-
-$KTAP -o /dev/null -e 'trace syscalls:* { print(argevent) }' \
-		-- $KTAP -e 'while (1) {}'
-
-ktaprun arith.kp
-ktaprun concat.kp
-ktaprun count.kp
-ktaprun fibonacci.kp
-ktaprun function.kp
-ktaprun if.kp
-ktaprun kprobe.kp
-ktaprun kretprobe.kp
-ktaprun len.kp
-ktaprun looping.kp
-ktaprun pairs.kp
-ktaprun table.kp
-ktaprun aggr_table.kp
-ktaprun timer.kp
-ktaprun tracepoint.kp
-ktaprun -o /dev/null zerodivide.kp
-ktaprun ansi.kp
-
-echo "testing kill deadloop ktap script"
-$KTAP -e 'while (1) {}' &
-pkill ktap
-sleep 1
-
-#####################################################
-rmmod ktapvm
-if test $? -ne 0; then
-	echo "Error in rmmod ../ktapvm.ko, leak module refcount?"
-	exit -1
-fi
-
diff --git a/drivers/staging/ktap/test/table.kp b/drivers/staging/ktap/test/table.kp
deleted file mode 100644
index 1f6d6e43302f..000000000000
--- a/drivers/staging/ktap/test/table.kp
+++ /dev/null
@@ -1,71 +0,0 @@
-#!/usr/bin/env ktap
-
-function failed() {
-	printf("failed\n");
-	exit(-1);
-}
-
-### table testing ###
-x = {}
-x[1] = "1"
-if (x[1] != "1") {
-	failed()
-}
-
-x[1] = 22222222222222222222222222222222222222222
-if (x[1] != 22222222222222222222222222222222222222222) {
-	failed()
-}
-
-x[1] = "jovi"
-if (x[1] != "jovi") {
-	failed()
-}
-
-x[11111111111111111111111111111111] = "jovi"
-if (x[11111111111111111111111111111111] != "jovi") {
-	failed()
-}
-
-x["jovi"] = 1
-if (x["jovi"] != 1) {
-	failed()
-}
-
-x["long string....................................."] = 1
-if (x["long string....................................."] != 1) {
-	failed()
-}
-
-# issue: subx must declare firstly, otherwise kernel will oops
-subx = {}
-subx["test"] = "this is test"
-x["test"] = subx
-if (x["test"]["test"] != "this is test") {
-	failed()
-}
-
-tbl = {}
-i = 1
-while (i < 100000) {
-	tbl[i] = i	
-	i = i + 1
-}
-
-i = 1
-while (i < 100000) {
-	if (tbl[i] != i) {
-		failed()
-	}
-	i = i + 1
-}
-
-#### table initization
-days = {"Sunday", "Monday", "Tuesday", "Wednesday",
-	"Thursday", "Friday", "Saturday"}
-
-if (days[2] != "Monday") {
-	failed()
-}
-
-
diff --git a/drivers/staging/ktap/test/timer.kp b/drivers/staging/ktap/test/timer.kp
deleted file mode 100644
index 02e8a61da664..000000000000
--- a/drivers/staging/ktap/test/timer.kp
+++ /dev/null
@@ -1,28 +0,0 @@
-#!/usr/bin/env ktap
-
-function failed() {
-	printf("failed\n");
-	exit(-1);
-}
-
-#---------------------------------------#
-
-n1 = 0
-n2 = 0
-
-tick-1s {
-	n1 = n1 + 1
-}
-
-tick-1s {
-	n2 = n2 + 1
-}
-
-tick-4s {
-	if (n1 == 0 || n2 == 0) {
-		failed()
-	}
-	exit()
-}
-
-
diff --git a/drivers/staging/ktap/test/tracepoint.kp b/drivers/staging/ktap/test/tracepoint.kp
deleted file mode 100644
index fb036e675a75..000000000000
--- a/drivers/staging/ktap/test/tracepoint.kp
+++ /dev/null
@@ -1,22 +0,0 @@
-#!/usr/bin/env ktap
-
-function failed() {
-	printf("failed\n");
-	exit(-1);
-}
-
-#----------------------------------------#
-
-n = 0
-
-trace sched:* {
-	n = n + 1
-}
-
-tick-1s {
-	if (n == 0) {
-		failed()
-	}
-	exit()
-}
-
diff --git a/drivers/staging/ktap/test/zerodivide.kp b/drivers/staging/ktap/test/zerodivide.kp
deleted file mode 100644
index abb1eae4fdab..000000000000
--- a/drivers/staging/ktap/test/zerodivide.kp
+++ /dev/null
@@ -1,5 +0,0 @@
-#!/usr/bin/env ktap
-
-a = 1/0
-#should not go here
-printf("Failed\n")
diff --git a/drivers/staging/ktap/userspace/code.c b/drivers/staging/ktap/userspace/code.c
deleted file mode 100644
index 1427fd518dec..000000000000
--- a/drivers/staging/ktap/userspace/code.c
+++ /dev/null
@@ -1,968 +0,0 @@
-/*
- * code.c - Code generator for ktap
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
- *  - The part of code in this file is copied from lua initially.
- *  - lua's MIT license is compatible with GPL.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "../include/ktap_types.h"
-#include "../include/ktap_opcodes.h"
-#include "ktapc.h"
-
-
-#define hasjumps(e)	((e)->t != (e)->f)
-
-void codegen_patchtohere (ktap_funcstate *fs, int list);
-
-static int isnumeral(ktap_expdesc *e)
-{
-	return (e->k == VKNUM && e->t == NO_JUMP && e->f == NO_JUMP);
-}
-
-void codegen_nil(ktap_funcstate *fs, int from, int n)
-{
-	ktap_instruction *previous;
-	int l = from + n - 1;  /* last register to set nil */
-
-	if (fs->pc > fs->lasttarget) {  /* no jumps to current position? */
-		previous = &fs->f->code[fs->pc-1];
-		if (GET_OPCODE(*previous) == OP_LOADNIL) {
-			int pfrom = GETARG_A(*previous);
-			int pl = pfrom + GETARG_B(*previous);
-
-			if ((pfrom <= from && from <= pl + 1) ||
-				(from <= pfrom && pfrom <= l + 1)) {  /* can connect both? */
-				if (pfrom < from)
-					from = pfrom;  /* from = min(from, pfrom) */
-				if (pl > l)
-					l = pl;  /* l = max(l, pl) */
-				SETARG_A(*previous, from);
-				SETARG_B(*previous, l - from);
-				return;
-			}
-		}  /* else go through */
-	}
-	codegen_codeABC(fs, OP_LOADNIL, from, n - 1, 0);  /* else no optimization */
-}
-
-int codegen_jump(ktap_funcstate *fs)
-{
-	int jpc = fs->jpc;  /* save list of jumps to here */
-	int j;
-
-	fs->jpc = NO_JUMP;
-	j = codegen_codeAsBx(fs, OP_JMP, 0, NO_JUMP);
-	codegen_concat(fs, &j, jpc);  /* keep them on hold */
-	return j;
-}
-
-void codegen_ret(ktap_funcstate *fs, int first, int nret)
-{
-	codegen_codeABC(fs, OP_RETURN, first, nret+1, 0);
-}
-
-static int condjump(ktap_funcstate *fs, OpCode op, int A, int B, int C)
-{
-	codegen_codeABC(fs, op, A, B, C);
-	return codegen_jump(fs);
-}
-
-static void fixjump(ktap_funcstate *fs, int pc, int dest)
-{
-	ktap_instruction *jmp = &fs->f->code[pc];
-	int offset = dest-(pc+1);
-
-	ktap_assert(dest != NO_JUMP);
-	if (abs(offset) > MAXARG_sBx)
-		lex_syntaxerror(fs->ls, "control structure too long");
-	SETARG_sBx(*jmp, offset);
-}
-
-/*
- * returns current `pc' and marks it as a jump target (to avoid wrong
- * optimizations with consecutive instructions not in the same basic block).
- */
-int codegen_getlabel(ktap_funcstate *fs)
-{
-	fs->lasttarget = fs->pc;
-	return fs->pc;
-}
-
-static int getjump(ktap_funcstate *fs, int pc)
-{
-	int offset = GETARG_sBx(fs->f->code[pc]);
-
-	if (offset == NO_JUMP)  /* point to itself represents end of list */
-		return NO_JUMP;  /* end of list */
-	else
-		return (pc+1)+offset;  /* turn offset into absolute position */
-}
-
-static ktap_instruction *getjumpcontrol(ktap_funcstate *fs, int pc)
-{
-	ktap_instruction *pi = &fs->f->code[pc];
-	if (pc >= 1 && testTMode(GET_OPCODE(*(pi-1))))
-		return pi-1;
-	else
-		return pi;
-}
-
-/*
- * check whether list has any jump that do not produce a value
- * (or produce an inverted value)
- */
-static int need_value(ktap_funcstate *fs, int list)
-{
-	for (; list != NO_JUMP; list = getjump(fs, list)) {
-		ktap_instruction i = *getjumpcontrol(fs, list);
-		if (GET_OPCODE(i) != OP_TESTSET)
-			return 1;
-	}
-	return 0;  /* not found */
-}
-
-static int patchtestreg(ktap_funcstate *fs, int node, int reg)
-{
-	ktap_instruction *i = getjumpcontrol(fs, node);
-	if (GET_OPCODE(*i) != OP_TESTSET)
-		return 0;  /* cannot patch other instructions */
-	if (reg != NO_REG && reg != GETARG_B(*i))
-		SETARG_A(*i, reg);
-	else  /* no register to put value or register already has the value */
-		*i = CREATE_ABC(OP_TEST, GETARG_B(*i), 0, GETARG_C(*i));
-
-	return 1;
-}
-
-static void removevalues(ktap_funcstate *fs, int list)
-{
-	for (; list != NO_JUMP; list = getjump(fs, list))
-		patchtestreg(fs, list, NO_REG);
-}
-
-static void patchlistaux(ktap_funcstate *fs, int list, int vtarget, int reg,
-			 int dtarget)
-{
-	while (list != NO_JUMP) {
-		int next = getjump(fs, list);
-		if (patchtestreg(fs, list, reg))
-			fixjump(fs, list, vtarget);
-		else
-			fixjump(fs, list, dtarget);  /* jump to default target */
-		list = next;
-	}
-}
-
-static void dischargejpc(ktap_funcstate *fs)
-{
-	patchlistaux(fs, fs->jpc, fs->pc, NO_REG, fs->pc);
-	fs->jpc = NO_JUMP;
-}
-
-void codegen_patchlist(ktap_funcstate *fs, int list, int target)
-{
-	if (target == fs->pc)
-		codegen_patchtohere(fs, list);
-	else {
-		ktap_assert(target < fs->pc);
-		patchlistaux(fs, list, target, NO_REG, target);
-	}
-}
-
-void codegen_patchclose(ktap_funcstate *fs, int list, int level)
-{
-	level++;  /* argument is +1 to reserve 0 as non-op */
-	while (list != NO_JUMP) {
-		int next = getjump(fs, list);
-		ktap_assert(GET_OPCODE(fs->f->code[list]) == OP_JMP &&
-			   (GETARG_A(fs->f->code[list]) == 0 ||
-			    GETARG_A(fs->f->code[list]) >= level));
-		SETARG_A(fs->f->code[list], level);
-		list = next;
-	}
-}
-
-void codegen_patchtohere(ktap_funcstate *fs, int list)
-{
-	codegen_getlabel(fs);
-	codegen_concat(fs, &fs->jpc, list);
-}
-
-void codegen_concat(ktap_funcstate *fs, int *l1, int l2)
-{
-	if (l2 == NO_JUMP)
-		return;
-	else if (*l1 == NO_JUMP)
-		*l1 = l2;
-	else {
-		int list = *l1;
-		int next;
-		while ((next = getjump(fs, list)) != NO_JUMP)  /* find last element */
-			list = next;
-		fixjump(fs, list, l2);
-	}
-}
-
-static int codegen_code(ktap_funcstate *fs, ktap_instruction i)
-{
-	ktap_proto *f = fs->f;
-
-	dischargejpc(fs);  /* `pc' will change */
-
-	/* put new instruction in code array */
-	ktapc_growvector(f->code, fs->pc, f->sizecode, ktap_instruction,
-			 MAX_INT, "opcodes");
-	f->code[fs->pc] = i;
-
-	/* save corresponding line information */
-	ktapc_growvector(f->lineinfo, fs->pc, f->sizelineinfo, int,
-			 MAX_INT, "opcodes");
-	f->lineinfo[fs->pc] = fs->ls->lastline;
-	return fs->pc++;
-}
-
-int codegen_codeABC(ktap_funcstate *fs, OpCode o, int a, int b, int c)
-{
-	ktap_assert(getOpMode(o) == iABC);
-	//ktap_assert(getBMode(o) != OpArgN || b == 0);
-	//ktap_assert(getCMode(o) != OpArgN || c == 0);
-	//ktap_assert(a <= MAXARG_A && b <= MAXARG_B && c <= MAXARG_C);
-	return codegen_code(fs, CREATE_ABC(o, a, b, c));
-}
-
-int codegen_codeABx(ktap_funcstate *fs, OpCode o, int a, unsigned int bc)
-{
-	ktap_assert(getOpMode(o) == iABx || getOpMode(o) == iAsBx);
-	ktap_assert(getCMode(o) == OpArgN);
-	ktap_assert(a <= MAXARG_A && bc <= MAXARG_Bx);
-	return codegen_code(fs, CREATE_ABx(o, a, bc));
-}
-
-static int codeextraarg(ktap_funcstate *fs, int a)
-{
-	ktap_assert(a <= MAXARG_Ax);
-	return codegen_code(fs, CREATE_Ax(OP_EXTRAARG, a));
-}
-
-int codegen_codek(ktap_funcstate *fs, int reg, int k)
-{
-	if (k <= MAXARG_Bx)
-		return codegen_codeABx(fs, OP_LOADK, reg, k);
-	else {
-		int p = codegen_codeABx(fs, OP_LOADKX, reg, 0);
-		codeextraarg(fs, k);
-		return p;
-	}
-}
-
-void codegen_checkstack(ktap_funcstate *fs, int n)
-{
-	int newstack = fs->freereg + n;
-
-	if (newstack > fs->f->maxstacksize) {
-		if (newstack >= MAXSTACK)
-			lex_syntaxerror(fs->ls, "function or expression too complex");
-		fs->f->maxstacksize = (u8)(newstack);
-	}
-}
-
-void codegen_reserveregs(ktap_funcstate *fs, int n)
-{
-	codegen_checkstack(fs, n);
-	fs->freereg += n;
-}
-
-static void freereg(ktap_funcstate *fs, int reg)
-{
-	if (!ISK(reg) && reg >= fs->nactvar) {
-		fs->freereg--;
-		ktap_assert(reg == fs->freereg);
-	}
-}
-
-static void freeexp(ktap_funcstate *fs, ktap_expdesc *e)
-{
-	if (e->k == VNONRELOC)
-		freereg(fs, e->u.info);
-}
-
-static int addk(ktap_funcstate *fs, ktap_value *key, ktap_value *v)
-{
-	const ktap_value *idx = ktapc_table_get(fs->h, key);
-	ktap_proto *f = fs->f;
-	ktap_value kn;
-	int k, oldsize;
-
-	if (ttisnumber(idx)) {
-		ktap_number n = nvalue(idx);
-		ktap_number2int(k, n);
-		if (ktapc_equalobj(&f->k[k], v))
-			return k;
-		/* else may be a collision (e.g., between 0.0 and "\0\0\0\0\0\0\0\0");
-			go through and create a new entry for this value */
-	}
-	/* constant not found; create a new entry */
-	oldsize = f->sizek;
-	k = fs->nk;
-
-	/* numerical value does not need GC barrier;
-	   table has no metatable, so it does not need to invalidate cache */
-	setnvalue(&kn, (ktap_number)k);
-	ktapc_table_setvalue(fs->h, key, &kn);
-	ktapc_growvector(f->k, k, f->sizek, ktap_value, MAXARG_Ax, "constants");
-	while (oldsize < f->sizek)
-		setnilvalue(&f->k[oldsize++]);
-	setobj(&f->k[k], v);
-	fs->nk++;
-	return k;
-}
-
-int codegen_stringK(ktap_funcstate *fs, ktap_string *s)
-{
-	ktap_value o;
-
-	setsvalue(&o, s);
-	return addk(fs, &o, &o);
-}
-
-int codegen_numberK(ktap_funcstate *fs, ktap_number r)
-{
-	int n;
-	ktap_value o, s;
-
-	setnvalue(&o, r);
-	if (r == 0 || ktap_numisnan(NULL, r)) {  /* handle -0 and NaN */
-		/* use raw representation as key to avoid numeric problems */
-		setsvalue(&s, ktapc_ts_newlstr((char *)&r, sizeof(r)));
-		//   incr_top(L);
-		n = addk(fs, &s, &o);
-		//   L->top--;
-	} else
-		n = addk(fs, &o, &o);  /* regular case */
-	return n;
-}
-
-static int boolK(ktap_funcstate *fs, int b)
-{
-	ktap_value o;
-	setbvalue(&o, b);
-	return addk(fs, &o, &o);
-}
-
-static int nilK(ktap_funcstate *fs)
-{
-	ktap_value k, v;
-	setnilvalue(&v);
-	/* cannot use nil as key; instead use table itself to represent nil */
-	sethvalue(&k, fs->h);
-	return addk(fs, &k, &v);
-}
-
-void codegen_setreturns(ktap_funcstate *fs, ktap_expdesc *e, int nresults)
-{
-	if (e->k == VCALL) {  /* expression is an open function call? */
-		SETARG_C(getcode(fs, e), nresults+1);
-	}
-	else if (e->k == VVARARG) {
-		SETARG_B(getcode(fs, e), nresults+1);
-		SETARG_A(getcode(fs, e), fs->freereg);
-		codegen_reserveregs(fs, 1);
-	}
-}
-
-void codegen_setoneret(ktap_funcstate *fs, ktap_expdesc *e)
-{
-	if (e->k == VCALL) {  /* expression is an open function call? */
-		e->k = VNONRELOC;
-		e->u.info = GETARG_A(getcode(fs, e));
-	} else if (e->k == VVARARG) {
-		SETARG_B(getcode(fs, e), 2);
-		e->k = VRELOCABLE;  /* can relocate its simple result */
-	}
-}
-
-void codegen_dischargevars(ktap_funcstate *fs, ktap_expdesc *e)
-{
-	switch (e->k) {
-	case VLOCAL: {
-		e->k = VNONRELOC;
-		break;
-	}
-	case VUPVAL: {
-		e->u.info = codegen_codeABC(fs, OP_GETUPVAL, 0, e->u.info, 0);
-		e->k = VRELOCABLE;
-		break;
-	}
-	case VINDEXED: {
-		OpCode op = OP_GETTABUP;  /* assume 't' is in an upvalue */
-		freereg(fs, e->u.ind.idx);
-		if (e->u.ind.vt == VLOCAL) {  /* 't' is in a register? */
-			freereg(fs, e->u.ind.t);
-			op = OP_GETTABLE;
-		}
-		e->u.info = codegen_codeABC(fs, op, 0, e->u.ind.t, e->u.ind.idx);
-		e->k = VRELOCABLE;
-		break;
-	}
-	case VVARARG:
-	case VCALL: {
-		codegen_setoneret(fs, e);
-		break;
-	}
-	default:
-		break;  /* there is one value available (somewhere) */
-	}
-}
-
-static int code_label(ktap_funcstate *fs, int A, int b, int jump)
-{
-	codegen_getlabel(fs);  /* those instructions may be jump targets */
-	return codegen_codeABC(fs, OP_LOADBOOL, A, b, jump);
-}
-
-static void discharge2reg(ktap_funcstate *fs, ktap_expdesc *e, int reg)
-{
-	codegen_dischargevars(fs, e);
-	switch (e->k) {
-	case VNIL: {
-		codegen_nil(fs, reg, 1);
-		break;
-	}
-	case VFALSE:  case VTRUE: {
-		codegen_codeABC(fs, OP_LOADBOOL, reg, e->k == VTRUE, 0);
- 		break;
-	}
-	case VEVENT:
-		codegen_codeABC(fs, OP_EVENT, reg, 0, 0);
-		break;
-	case VEVENTNAME:
-		codegen_codeABC(fs, OP_EVENTNAME, reg, 0, 0);
-		break;
-	case VEVENTARG:
-		codegen_codeABC(fs, OP_EVENTARG, reg, e->u.info, 0);
-		break;
-	case VK: {
-		codegen_codek(fs, reg, e->u.info);
-		break;
-	}
-	case VKNUM: {
-		codegen_codek(fs, reg, codegen_numberK(fs, e->u.nval));
-		break;
-	}
-	case VRELOCABLE: {
-		ktap_instruction *pc = &getcode(fs, e);
-		SETARG_A(*pc, reg);
-		break;
-	}
-	case VNONRELOC: {
-		if (reg != e->u.info)
-			codegen_codeABC(fs, OP_MOVE, reg, e->u.info, 0);
-		break;
-	}
-	default:
-		ktap_assert(e->k == VVOID || e->k == VJMP);
-		return;  /* nothing to do... */
-	}
-
-	e->u.info = reg;
-	e->k = VNONRELOC;
-}
-
-static void discharge2anyreg(ktap_funcstate *fs, ktap_expdesc *e)
-{
-	if (e->k != VNONRELOC) {
-		codegen_reserveregs(fs, 1);
-		discharge2reg(fs, e, fs->freereg-1);
-	}
-}
-
-static void exp2reg(ktap_funcstate *fs, ktap_expdesc *e, int reg)
-{
-	discharge2reg(fs, e, reg);
-	if (e->k == VJMP)
-		codegen_concat(fs, &e->t, e->u.info);  /* put this jump in `t' list */
-	if (hasjumps(e)) {
-		int final;  /* position after whole expression */
-		int p_f = NO_JUMP;  /* position of an eventual LOAD false */
-		int p_t = NO_JUMP;  /* position of an eventual LOAD true */
-
-		if (need_value(fs, e->t) || need_value(fs, e->f)) {
-			int fj = (e->k == VJMP) ? NO_JUMP : codegen_jump(fs);
-
-			p_f = code_label(fs, reg, 0, 1);
-			p_t = code_label(fs, reg, 1, 0);
-			codegen_patchtohere(fs, fj);
-		}
-		final = codegen_getlabel(fs);
-		patchlistaux(fs, e->f, final, reg, p_f);
-		patchlistaux(fs, e->t, final, reg, p_t);
-	}
-	e->f = e->t = NO_JUMP;
-	e->u.info = reg;
-	e->k = VNONRELOC;
-}
-
-void codegen_exp2nextreg(ktap_funcstate *fs, ktap_expdesc *e)
-{
-	codegen_dischargevars(fs, e);
-	freeexp(fs, e);
-	codegen_reserveregs(fs, 1);
-	exp2reg(fs, e, fs->freereg - 1);
-}
-
-int codegen_exp2anyreg(ktap_funcstate *fs, ktap_expdesc *e)
-{
-	codegen_dischargevars(fs, e);
-	if (e->k == VNONRELOC) {
-		if (!hasjumps(e))
-			return e->u.info;  /* exp is already in a register */
-		if (e->u.info >= fs->nactvar) {  /* reg. is not a local? */
-			exp2reg(fs, e, e->u.info);  /* put value on it */
-			return e->u.info;
-		}
-	}
-	codegen_exp2nextreg(fs, e);  /* default */
-	return e->u.info;
-}
-
-void codegen_exp2anyregup(ktap_funcstate *fs, ktap_expdesc *e)
-{
-	if (e->k != VUPVAL || hasjumps(e))
-		codegen_exp2anyreg(fs, e);
-}
-
-void codegen_exp2val(ktap_funcstate *fs, ktap_expdesc *e)
-{
-	if (hasjumps(e))
-		codegen_exp2anyreg(fs, e);
-	else
-		codegen_dischargevars(fs, e);
-}
-
-int codegen_exp2RK(ktap_funcstate *fs, ktap_expdesc *e)
-{
-	codegen_exp2val(fs, e);
-	switch (e->k) {
-	case VTRUE:
-	case VFALSE:
-	case VNIL: {
-		if (fs->nk <= MAXINDEXRK) {  /* constant fits in RK operand? */
-			e->u.info = (e->k == VNIL) ? nilK(fs) :
-						     boolK(fs, (e->k == VTRUE));
-			e->k = VK;
-			return RKASK(e->u.info);
-		}
-		else
-			break;
-	}
-	case VKNUM: {
-		e->u.info = codegen_numberK(fs, e->u.nval);
-		e->k = VK;
-		/* go through */
-	}
-	case VK: {
-		if (e->u.info <= MAXINDEXRK)  /* constant fits in argC? */
-			return RKASK(e->u.info);
-		else
-			break;
-	}
-	default:
-		break;
-	}
-	/* not a constant in the right range: put it in a register */
-	return codegen_exp2anyreg(fs, e);
-}
-
-void codegen_storevar(ktap_funcstate *fs, ktap_expdesc *var, ktap_expdesc *ex)
-{
-	switch (var->k) {
-	case VLOCAL: {
-		freeexp(fs, ex);
-		exp2reg(fs, ex, var->u.info);
-		return;
-	}
-	case VUPVAL: {
-		int e = codegen_exp2anyreg(fs, ex);
-		codegen_codeABC(fs, OP_SETUPVAL, e, var->u.info, 0);
-		break;
-	}
-	case VINDEXED: {
-		OpCode op = (var->u.ind.vt == VLOCAL) ? OP_SETTABLE : OP_SETTABUP;
-		int e = codegen_exp2RK(fs, ex);
-		codegen_codeABC(fs, op, var->u.ind.t, var->u.ind.idx, e);
-		break;
-	}
-	default:
-		ktap_assert(0);  /* invalid var kind to store */
-		break;
-	}
-
-	freeexp(fs, ex);
-}
-
-void codegen_storeincr(ktap_funcstate *fs, ktap_expdesc *var, ktap_expdesc *ex)
-{
-	switch (var->k) {
-#if 0 /*current not supported */
-	case VLOCAL: {
-		freeexp(fs, ex);
-		exp2reg(fs, ex, var->u.info);
-		return;
-	}
-	case VUPVAL: {
-		int e = codegen_exp2anyreg(fs, ex);
-		codegen_codeABC(fs, OP_SETUPVAL, e, var->u.info, 0);
-		break;
-	}
-#endif
-	case VINDEXED: {
-		OpCode op = (var->u.ind.vt == VLOCAL) ? OP_SETTABLE_INCR :
-				OP_SETTABUP_INCR;
-		int e = codegen_exp2RK(fs, ex);
-		codegen_codeABC(fs, op, var->u.ind.t, var->u.ind.idx, e);
-		break;
-	}
-	default:
-		ktap_assert(0);  /* invalid var kind to store */
-		break;
-	}
-
-	freeexp(fs, ex);
-}
-
-
-void codegen_self(ktap_funcstate *fs, ktap_expdesc *e, ktap_expdesc *key)
-{
-	int ereg;
-
-	codegen_exp2anyreg(fs, e);
-	ereg = e->u.info;  /* register where 'e' was placed */
-	freeexp(fs, e);
-	e->u.info = fs->freereg;  /* base register for op_self */
-	e->k = VNONRELOC;
-	codegen_reserveregs(fs, 2);  /* function and 'self' produced by op_self */
-	codegen_codeABC(fs, OP_SELF, e->u.info, ereg, codegen_exp2RK(fs, key));
-	freeexp(fs, key);
-}
-
-static void invertjump(ktap_funcstate *fs, ktap_expdesc *e)
-{
-	ktap_instruction *pc = getjumpcontrol(fs, e->u.info);
-	ktap_assert(testTMode(GET_OPCODE(*pc)) && GET_OPCODE(*pc) != OP_TESTSET &&
-			GET_OPCODE(*pc) != OP_TEST);
-	SETARG_A(*pc, !(GETARG_A(*pc)));
-}
-
-static int jumponcond(ktap_funcstate *fs, ktap_expdesc *e, int cond)
-{
-	if (e->k == VRELOCABLE) {
-		ktap_instruction ie = getcode(fs, e);
-		if (GET_OPCODE(ie) == OP_NOT) {
-			fs->pc--;  /* remove previous OP_NOT */
-			return condjump(fs, OP_TEST, GETARG_B(ie), 0, !cond);
-		}
-		/* else go through */
-	}
-	discharge2anyreg(fs, e);
-	freeexp(fs, e);
-	return condjump(fs, OP_TESTSET, NO_REG, e->u.info, cond);
-}
-
-void codegen_goiftrue(ktap_funcstate *fs, ktap_expdesc *e)
-{
-	int pc;  /* pc of last jump */
-
-	codegen_dischargevars(fs, e);
-	switch (e->k) {
-	case VJMP: {
-		invertjump(fs, e);
-		pc = e->u.info;
-		break;
-	}
-	case VK: case VKNUM: case VTRUE: {
-		pc = NO_JUMP;  /* always true; do nothing */
-		break;
-	}
-	default:
-		pc = jumponcond(fs, e, 0);
-		break;
-	}
-
-	codegen_concat(fs, &e->f, pc);  /* insert last jump in `f' list */
-	codegen_patchtohere(fs, e->t);
-	e->t = NO_JUMP;
-}
-
-void codegen_goiffalse(ktap_funcstate *fs, ktap_expdesc *e)
-{
-	int pc;  /* pc of last jump */
-	codegen_dischargevars(fs, e);
-
-	switch (e->k) {
-	case VJMP: {
-		pc = e->u.info;
-		break;
-	}
-	case VNIL: case VFALSE: {
-		pc = NO_JUMP;  /* always false; do nothing */
- 		break;
-	}
-	default:
-		pc = jumponcond(fs, e, 1);
-		break;
-	}
-	codegen_concat(fs, &e->t, pc);  /* insert last jump in `t' list */
-	codegen_patchtohere(fs, e->f);
-	e->f = NO_JUMP;
-}
-
-static void codenot(ktap_funcstate *fs, ktap_expdesc *e)
-{
-	codegen_dischargevars(fs, e);
-	switch (e->k) {
-	case VNIL: case VFALSE: {
-		e->k = VTRUE;
-		break;
-	}
-	case VK: case VKNUM: case VTRUE: {
-		e->k = VFALSE;
-		break;
-	}
-	case VJMP: {
-		invertjump(fs, e);
-		break;
-	}
-	case VRELOCABLE:
-	case VNONRELOC: {
-		discharge2anyreg(fs, e);
-		freeexp(fs, e);
-		e->u.info = codegen_codeABC(fs, OP_NOT, 0, e->u.info, 0);
-		e->k = VRELOCABLE;
-		break;
-	}
-	default:
-		ktap_assert(0);  /* cannot happen */
-		break;
-	}
-
-	/* interchange true and false lists */
-	{ int temp = e->f; e->f = e->t; e->t = temp; }
-	removevalues(fs, e->f);
-	removevalues(fs, e->t);
-}
-
-void codegen_indexed(ktap_funcstate *fs, ktap_expdesc *t, ktap_expdesc *k)
-{
-	ktap_assert(!hasjumps(t));
-	t->u.ind.t = t->u.info;
-	t->u.ind.idx = codegen_exp2RK(fs, k);
-	t->u.ind.vt = (t->k == VUPVAL) ? VUPVAL
-			: check_exp(vkisinreg(t->k), VLOCAL);
-	t->k = VINDEXED;
-}
-
-static int constfolding(OpCode op, ktap_expdesc *e1, ktap_expdesc *e2)
-{
-	ktap_number r;
-
-	if (!isnumeral(e1) || !isnumeral(e2))
-		return 0;
-
-	if ((op == OP_DIV || op == OP_MOD) && e2->u.nval == 0)
-		return 0;  /* do not attempt to divide by 0 */
-
-	if (op == OP_POW)
-		return 0; /* ktap current do not suppor pow arith */
-
-	r = ktapc_arith(op - OP_ADD + KTAP_OPADD, e1->u.nval, e2->u.nval);
-	e1->u.nval = r;
-	return 1;
-}
-
-static void codearith(ktap_funcstate *fs, OpCode op,
-		      ktap_expdesc *e1, ktap_expdesc *e2, int line)
-{
-	if (constfolding(op, e1, e2))
-		return;
-	else {
-		int o2 = (op != OP_UNM && op != OP_LEN) ? codegen_exp2RK(fs, e2) : 0;
-		int o1 = codegen_exp2RK(fs, e1);
-
-		if (o1 > o2) {
-			freeexp(fs, e1);
-			freeexp(fs, e2);
-		} else {
-			freeexp(fs, e2);
-			freeexp(fs, e1);
-		}
-		e1->u.info = codegen_codeABC(fs, op, 0, o1, o2);
-		e1->k = VRELOCABLE;
-		codegen_fixline(fs, line);
-	}
-}
-
-static void codecomp(ktap_funcstate *fs, OpCode op, int cond, ktap_expdesc *e1,
-		     ktap_expdesc *e2)
-{
-	int o1 = codegen_exp2RK(fs, e1);
-	int o2 = codegen_exp2RK(fs, e2);
-
-	freeexp(fs, e2);
-	freeexp(fs, e1);
-	if (cond == 0 && op != OP_EQ) {
-		int temp;  /* exchange args to replace by `<' or `<=' */
-		temp = o1; o1 = o2; o2 = temp;  /* o1 <==> o2 */
-		cond = 1;
-	}
-	e1->u.info = condjump(fs, op, cond, o1, o2);
-	e1->k = VJMP;
-}
-
-void codegen_prefix(ktap_funcstate *fs, UnOpr op, ktap_expdesc *e, int line)
-{
-	ktap_expdesc e2;
-
-	e2.t = e2.f = NO_JUMP;
-	e2.k = VKNUM;
-	e2.u.nval = 0;
-
-	switch (op) {
-	case OPR_MINUS: {
-		if (isnumeral(e))  /* minus constant? */
-			e->u.nval = ktap_numunm(e->u.nval);  /* fold it */
-		else {
-			codegen_exp2anyreg(fs, e);
-			codearith(fs, OP_UNM, e, &e2, line);
-		}
-		break;
-	}
-	case OPR_NOT:
-		codenot(fs, e);
-		break;
-	case OPR_LEN: {
-		codegen_exp2anyreg(fs, e);  /* cannot operate on constants */
-		codearith(fs, OP_LEN, e, &e2, line);
-		break;
-	}
-	default:
-		ktap_assert(0);
-	}
-}
-
-void codegen_infix(ktap_funcstate *fs, BinOpr op, ktap_expdesc *v)
-{
-	switch (op) {
-	case OPR_AND: {
-		codegen_goiftrue(fs, v);
-		break;
-	}
-	case OPR_OR: {
-		codegen_goiffalse(fs, v);
-		break;
-	}
-	case OPR_CONCAT: {
-		codegen_exp2nextreg(fs, v);  /* operand must be on the `stack' */
-		break;
-	}
-	case OPR_ADD: case OPR_SUB: case OPR_MUL: case OPR_DIV:
-	case OPR_MOD: case OPR_POW: {
-		if (!isnumeral(v)) codegen_exp2RK(fs, v);
-			break;
-	}
-	default:
-		codegen_exp2RK(fs, v);
-		break;
-	}
-}
-
-void codegen_posfix(ktap_funcstate *fs, BinOpr op, ktap_expdesc *e1, ktap_expdesc *e2, int line)
-{
-	switch (op) {
-	case OPR_AND: {
-		ktap_assert(e1->t == NO_JUMP);  /* list must be closed */
-		codegen_dischargevars(fs, e2);
-		codegen_concat(fs, &e2->f, e1->f);
-		*e1 = *e2;
-		break;
-	}
-	case OPR_OR: {
-		ktap_assert(e1->f == NO_JUMP);  /* list must be closed */
-		codegen_dischargevars(fs, e2);
-		codegen_concat(fs, &e2->t, e1->t);
-		*e1 = *e2;
-		break;
-	}
-	case OPR_CONCAT: {
-		codegen_exp2val(fs, e2);
-		if (e2->k == VRELOCABLE && GET_OPCODE(getcode(fs, e2)) == OP_CONCAT) {
-			ktap_assert(e1->u.info == GETARG_B(getcode(fs, e2))-1);
-			freeexp(fs, e1);
-			SETARG_B(getcode(fs, e2), e1->u.info);
-			e1->k = VRELOCABLE; e1->u.info = e2->u.info;
-		} else {
-			codegen_exp2nextreg(fs, e2);  /* operand must be on the 'stack' */
-			codearith(fs, OP_CONCAT, e1, e2, line);
-		}
-		break;
-	}
-	case OPR_ADD: case OPR_SUB: case OPR_MUL: case OPR_DIV:
-	case OPR_MOD: case OPR_POW: {
-		codearith(fs, (OpCode)(op - OPR_ADD + OP_ADD), e1, e2, line);
-		break;
-	}
-	case OPR_EQ: case OPR_LT: case OPR_LE: {
-		codecomp(fs, (OpCode)(op - OPR_EQ + OP_EQ), 1, e1, e2);
-		break;
-	}
-	case OPR_NE: case OPR_GT: case OPR_GE: {
-		codecomp(fs, (OpCode)(op - OPR_NE + OP_EQ), 0, e1, e2);
-		break;
-	}
-	default:
-		ktap_assert(0);
-	}
-}
-
-void codegen_fixline(ktap_funcstate *fs, int line)
-{
-	fs->f->lineinfo[fs->pc - 1] = line;
-}
-
-void codegen_setlist(ktap_funcstate *fs, int base, int nelems, int tostore)
-{
-	int c =  (nelems - 1)/LFIELDS_PER_FLUSH + 1;
-	int b = (tostore == KTAP_MULTRET) ? 0 : tostore;
-
-	ktap_assert(tostore != 0);
-	if (c <= MAXARG_C)
-		codegen_codeABC(fs, OP_SETLIST, base, b, c);
-	else if (c <= MAXARG_Ax) {
-		codegen_codeABC(fs, OP_SETLIST, base, b, 0);
-		codeextraarg(fs, c);
-	} else
-		lex_syntaxerror(fs->ls, "constructor too long");
-	fs->freereg = base + 1;  /* free registers with list values */
-}
-
diff --git a/drivers/staging/ktap/userspace/dump.c b/drivers/staging/ktap/userspace/dump.c
deleted file mode 100644
index 088b08d0fa8e..000000000000
--- a/drivers/staging/ktap/userspace/dump.c
+++ /dev/null
@@ -1,187 +0,0 @@
-/*
- * dump.c - save precompiled ktap chunks
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
- *  - The part of code in this file is copied from lua initially.
- *  - lua's MIT license is compatible with GPL.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "../include/ktap_types.h"
-#include "../include/ktap_opcodes.h"
-#include "ktapc.h"
-
-
-typedef struct {
-	ktap_writer writer;
-	void *data;
-	int strip;
-	int status;
-} DumpState;
-
-#define DumpMem(b, n, size, D)	DumpBlock(b, (n)*(size), D)
-#define DumpVar(x, D)		DumpMem(&x, 1, sizeof(x), D)
-
-static void DumpBlock(const void *b, size_t size, DumpState *D)
-{
-	if (D->status == 0)
-		D->status = ((D->writer))(b, size, D->data);
-}
-
-static void DumpChar(int y, DumpState *D)
-{
-	char x = (char)y;
-	DumpVar(x, D);
-}
-
-static void DumpInt(int x, DumpState *D)
-{
-	DumpVar(x, D);
-}
-
-static void DumpNumber(ktap_number x, DumpState *D)
-{
-	DumpVar(x,D);
-}
-
-static void DumpVector(const void *b, int n, size_t size, DumpState *D)
-{
-	DumpInt(n, D);
-	DumpMem(b, n, size, D);
-}
-
-static void DumpString(const ktap_string *s, DumpState *D)
-{
-	if (s == NULL) {
-		int size = 0;
-		DumpVar(size, D);
-	} else {
-		int size = s->tsv.len + 1;		/* include trailing '\0' */
-		DumpVar(size, D);
-		DumpBlock(getstr(s), size * sizeof(char), D);
-	}
-}
-
-#define DumpCode(f, D)	 DumpVector(f->code, f->sizecode, sizeof(ktap_instruction), D)
-
-static void DumpFunction(const ktap_proto *f, DumpState *D);
-
-static void DumpConstants(const ktap_proto *f, DumpState *D)
-{
-	int i, n = f->sizek;
-
-	DumpInt(n, D);
-	for (i = 0; i < n; i++) {
-		const ktap_value* o=&f->k[i];
-		DumpChar(ttypenv(o), D);
-		switch (ttypenv(o)) {
-		case KTAP_TNIL:
-			break;
-		case KTAP_TBOOLEAN:
-			DumpChar(bvalue(o), D);
-			break;
-		case KTAP_TNUMBER:
-			DumpNumber(nvalue(o), D);
-			break;
-		case KTAP_TSTRING:
-			DumpString(rawtsvalue(o), D);
-			break;
-		default:
-			printf("ktap: DumpConstants with unknown vaule type %d\n", ttypenv(o));
-			ktap_assert(0);
-		}
-	}
-	n = f->sizep;
-	DumpInt(n, D);
-	for (i = 0; i < n; i++)
-		DumpFunction(f->p[i], D);
-}
-
-static void DumpUpvalues(const ktap_proto *f, DumpState *D)
-{
-	int i, n = f->sizeupvalues;
-
-	DumpInt(n, D);
-	for (i = 0; i < n; i++) {
-		DumpChar(f->upvalues[i].instack, D);
-		DumpChar(f->upvalues[i].idx, D);
-	}
-}
-
-static void DumpDebug(const ktap_proto *f, DumpState *D)
-{
-	int i,n;
-
-	DumpString((D->strip) ? NULL : f->source, D);
-	n= (D->strip) ? 0 : f->sizelineinfo;
-	DumpVector(f->lineinfo, n, sizeof(int), D);
-	n = (D->strip) ? 0 : f->sizelocvars;
-	DumpInt(n, D);
-
-	for (i = 0; i < n; i++) {
-		DumpString(f->locvars[i].varname, D);
-		DumpInt(f->locvars[i].startpc, D);
-		DumpInt(f->locvars[i].endpc, D);
-	}
-	n = (D->strip) ? 0 : f->sizeupvalues;
-	DumpInt(n, D);
-	for (i = 0; i < n; i++)
-		DumpString(f->upvalues[i].name, D);
-}
-
-static void DumpFunction(const ktap_proto *f, DumpState *D)
-{
-	DumpInt(f->linedefined, D);
-	DumpInt(f->lastlinedefined, D);
-	DumpChar(f->numparams, D);
-	DumpChar(f->is_vararg, D);
-	DumpChar(f->maxstacksize, D);
-	DumpCode(f, D);
-	DumpConstants(f, D);
-	DumpUpvalues(f, D);
-	DumpDebug(f, D);
-}
-
-static void DumpHeader(DumpState *D)
-{
-	u8 h[KTAPC_HEADERSIZE];
-
-	kp_header(h);
-	DumpBlock(h, KTAPC_HEADERSIZE, D);
-}
-
-/*
- * dump ktap function as precompiled chunk
- */
-int ktapc_dump(const ktap_proto *f, ktap_writer w, void *data, int strip)
-{
-	DumpState D;
-
-	D.writer = w;
-	D.data = data;
-	D.strip = strip;
-	D.status = 0;
-	DumpHeader(&D);
-	DumpFunction(f, &D);
-	return D.status;
-}
diff --git a/drivers/staging/ktap/userspace/eventdef.c b/drivers/staging/ktap/userspace/eventdef.c
deleted file mode 100644
index 76a68ac8aabc..000000000000
--- a/drivers/staging/ktap/userspace/eventdef.c
+++ /dev/null
@@ -1,588 +0,0 @@
-/*
- * eventdef.c - ktap eventdef parser
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <unistd.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <dirent.h>
-#include <fcntl.h>
-
-#include "../include/ktap_types.h"
-#include "../include/ktap_opcodes.h"
-#include "ktapc.h"
-
-static char tracing_events_path[] = "/sys/kernel/debug/tracing/events";
-
-#define IDS_ARRAY_SIZE 4096
-static u8 *ids_array;
-
-#define set_id(id)	\
-	do { \
-		ids_array[id/8] = ids_array[id/8] | (1 << (id%8));	\
-	} while(0)
-
-#define clear_id(id)	\
-	do { \
-		ids_array[id/8] = ids_array[id/8] & ~ (1 << (id%8));	\
-	} while(0)
-
-
-static int get_digit_len(int id)
-{
-	int len = -1;
-
-	if (id < 10)
-		len = 1;
-	else if (id < 100)
-		len = 2;
-	else if (id < 1000)
-		len = 3;
-	else if (id < 10000)
-		len = 4;
-	else if (id < 100000)
-		len = 5;
-
-	return len;
-}
-
-static char *get_idstr(char *filter)
-{
-	char *idstr, *ptr;
-	int total_len = 0;
-	int filter_len;
-	int i;
-
-	filter_len = filter ? strlen(filter) : 0;
-
-	for (i = 0; i < IDS_ARRAY_SIZE*8; i++) {
-		if (ids_array[i/8] & (1 << (i%8)))
-			total_len += get_digit_len(i) + 1;
-	}
-
-	if (!total_len)
-		return NULL;
-
-	idstr = malloc(total_len + filter_len + 1);
-	if (!idstr)
-		return NULL;
-
-	memset(idstr, 0, total_len + filter_len + 1);
-	ptr = idstr;
-	for (i = 0; i < IDS_ARRAY_SIZE*8; i++) {
-		if (ids_array[i/8] & (1 << (i%8))) {
-			char digits[32] = {0};
-			int len;
-
-			sprintf(digits, "%d ", i);
-			len = strlen(digits);
-			strncpy(ptr, digits, len);
-			ptr += len;
-		}
-	}
-
-	if (filter)
-		memcpy(ptr, filter, strlen(filter));
-
-	return idstr;
-}
-
-static int add_event(char *evtid_path)
-{
-	char id_buf[24];
-	int id, fd;
-
-	fd = open(evtid_path, O_RDONLY);
-	if (fd < 0) {
-		/*
-		 * some tracepoint doesn't have id file, like ftrace,
-		 * return success in here, and don't print error.
-		 */
-		verbose_printf("warning: cannot open file %s\n", evtid_path);
-		return 0;
-	}
-
-	if (read(fd, id_buf, sizeof(id_buf)) < 0) {
-		fprintf(stderr, "read file error %s\n", evtid_path);
-		close(fd);
-		return -1;
-	}
-
-	id = atoll(id_buf);
-
-	if (id >= IDS_ARRAY_SIZE * 8) {
-		fprintf(stderr, "tracepoint id(%d) is bigger than %d\n", id,
-				IDS_ARRAY_SIZE * 8);
-		close(fd);
-		return -1;
-	}
-
-	set_id(id);
-
-	close(fd);
-	return 0;
-}
-
-static int add_tracepoint(char *sys_name, char *evt_name)
-{
-	char evtid_path[PATH_MAX] = {0};
-
-
-	snprintf(evtid_path, PATH_MAX, "%s/%s/%s/id", tracing_events_path,
-					sys_name, evt_name);
-	return add_event(evtid_path);
-}
-
-static int add_tracepoint_multi_event(char *sys_name, char *evt_name)
-{
-	char evt_path[PATH_MAX];
-	struct dirent *evt_ent;
-	DIR *evt_dir;
-	int ret = 0;
-
-	snprintf(evt_path, PATH_MAX, "%s/%s", tracing_events_path, sys_name);
-	evt_dir = opendir(evt_path);
-	if (!evt_dir) {
-		perror("Can't open event dir");
-		return -1;
-	}
-
-	while (!ret && (evt_ent = readdir(evt_dir))) {
-		if (!strcmp(evt_ent->d_name, ".")
-		    || !strcmp(evt_ent->d_name, "..")
-		    || !strcmp(evt_ent->d_name, "enable")
-		    || !strcmp(evt_ent->d_name, "filter"))
-			continue;
-
-		if (!strglobmatch(evt_ent->d_name, evt_name))
-			continue;
-
-		ret = add_tracepoint(sys_name, evt_ent->d_name);
-	}
-
-	closedir(evt_dir);
-	return ret;
-}
-
-static int add_tracepoint_event(char *sys_name, char *evt_name)
-{
-	return strpbrk(evt_name, "*?") ?
-	       add_tracepoint_multi_event(sys_name, evt_name) :
-	       add_tracepoint(sys_name, evt_name);
-}
-
-static int add_tracepoint_multi_sys(char *sys_name, char *evt_name)
-{
-	struct dirent *events_ent;
-	DIR *events_dir;
-	int ret = 0;
-
-	events_dir = opendir(tracing_events_path);
-	if (!events_dir) {
-		perror("Can't open event dir");
-		return -1;
-	}
-
-	while (!ret && (events_ent = readdir(events_dir))) {
-		if (!strcmp(events_ent->d_name, ".")
-		    || !strcmp(events_ent->d_name, "..")
-		    || !strcmp(events_ent->d_name, "enable")
-		    || !strcmp(events_ent->d_name, "header_event")
-		    || !strcmp(events_ent->d_name, "header_page"))
-			continue;
-
-		if (!strglobmatch(events_ent->d_name, sys_name))
-			continue;
-
-		ret = add_tracepoint_event(events_ent->d_name,
-					   evt_name);
-	}
-
-	closedir(events_dir);
-	return ret;
-}
-
-static int parse_events_add_tracepoint(char *sys, char *event)
-{
-	if (strpbrk(sys, "*?"))
-		return add_tracepoint_multi_sys(sys, event);
-	else
-		return add_tracepoint_event(sys, event);
-}
-
-enum {
-	KPROBE_EVENT,
-	UPROBE_EVENT,
-};
-
-struct probe_list {
-	struct probe_list *next;
-	int type;
-	int kp_seq;
-	char *probe_event;
-};
-
-static struct probe_list *probe_list_head;
-
-#define KPROBE_EVENTS_PATH "/sys/kernel/debug/tracing/kprobe_events"
-
-static int parse_events_add_kprobe(char *old_event)
-{
-	static int event_seq = 0;
-	struct probe_list *pl;
-	char probe_event[128] = {0};
-	char event_id_path[128] = {0};
-	char *event;
-	char *r;
-	int fd;
-	int ret;
-
-	fd = open(KPROBE_EVENTS_PATH, O_WRONLY);
-	if (fd < 0) {
-		fprintf(stderr, "Cannot open %s\n", KPROBE_EVENTS_PATH);
-		return -1;
-	}
-
-	event = strdup(old_event);
-	r = strstr(event, "%return");
-	if (r) {
-		memset(r, ' ', 7);
-		snprintf(probe_event, 128, "r:kprobes/kp%d %s",
-				event_seq, event);
-	} else
-		snprintf(probe_event, 128, "p:kprobes/kp%d %s",
-				event_seq, event);
-
-	free(event);
-
-	verbose_printf("kprobe event %s\n", probe_event);
-	ret = write(fd, probe_event, strlen(probe_event));
-	if (ret <= 0) {
-		fprintf(stderr, "Cannot write %s to %s\n", probe_event,
-				KPROBE_EVENTS_PATH);
-		close(fd);
-		return -1;
-	}
-
-	close(fd);
-
-	pl = malloc(sizeof(struct probe_list));
-	if (!pl)
-		return -1;
-
-	pl->type = KPROBE_EVENT;
-	pl->kp_seq = event_seq;
-	pl->next = probe_list_head;
-	probe_list_head = pl;
-
-	sprintf(event_id_path, "/sys/kernel/debug/tracing/events/kprobes/kp%d/id",
-			event_seq);
-	ret = add_event(event_id_path);
-	if (ret < 0)
-		return -1;
-
-	event_seq++;
-	return 0;
-}
-
-#define UPROBE_EVENTS_PATH "/sys/kernel/debug/tracing/uprobe_events"
-
-static int parse_events_add_uprobe(char *old_event)
-{
-	static int event_seq = 0;
-	struct probe_list *pl;
-	char probe_event[128] = {0};
-	char event_id_path[128] = {0};
-	char *event;
-	char *r;
-	int fd;
-	int ret;
-
-	fd = open(UPROBE_EVENTS_PATH, O_WRONLY);
-	if (fd < 0) {
-		fprintf(stderr, "Cannot open %s\n", UPROBE_EVENTS_PATH);
-		return -1;
-	}
-
-	event = strdup(old_event);
-	r = strstr(event, "%return");
-	if (r) {
-		memset(r, ' ', 7);
-		snprintf(probe_event, 128, "r:uprobes/kp%d %s",
-				event_seq, event);
-	} else
-		snprintf(probe_event, 128, "p:uprobes/kp%d %s",
-				event_seq, event);
-
-	free(event);
-
-	verbose_printf("uprobe event %s\n", probe_event);
-	ret = write(fd, probe_event, strlen(probe_event));
-	if (ret <= 0) {
-		fprintf(stderr, "Cannot write %s to %s\n", probe_event,
-				UPROBE_EVENTS_PATH);
-		close(fd);
-		return -1;
-	}
-
-	close(fd);
-
-	pl = malloc(sizeof(struct probe_list));
-	if (!pl)
-		return -1;
-
-	pl->type = UPROBE_EVENT;
-	pl->kp_seq = event_seq;
-	pl->next = probe_list_head;
-	probe_list_head = pl;
-
-	sprintf(event_id_path, "/sys/kernel/debug/tracing/events/uprobes/kp%d/id",
-			event_seq);
-	ret = add_event(event_id_path);
-	if (ret < 0)
-		return -1;
-
-	event_seq++;
-	return 0;
-}
-
-static int parse_events_add_probe(char *old_event)
-{
-	char *separator;
-
-	separator = strchr(old_event, ':');
-	if (!separator || (separator == old_event))
-		return parse_events_add_kprobe(old_event);
-	else
-		return parse_events_add_uprobe(old_event);
-}
-
-static int parse_events_add_stapsdt(char *old_event)
-{
-	printf("Currently ktap don't support stapsdt, please waiting\n");
-
-	return -1;
-}
-
-static void strim(char *s)
-{
-	size_t size;
-	char *end;
-
-	size = strlen(s);
-	if (!size)
-		return;
-
-	end = s + size -1;
-	while (end >= s && isspace(*end))
-		end--;
-
-	*(end + 1) = '\0';
-}
-
-static int get_sys_event_filter_str(char *start,
-				    char **sys, char **event, char **filter)
-{
-	char *separator, *separator2, *ptr, *end;
-
-	while (*start == ' ')
-		start++;
-
-	/* find sys */
-	separator = strchr(start, ':');
-	if (!separator || (separator == start)) {
-		return -1;
-	}
-
-	ptr = malloc(separator - start + 1);
-	if (!ptr)
-		return -1;
-
-	strncpy(ptr, start, separator - start);
-	ptr[separator - start] = '\0';
-
-	strim(ptr);
-	*sys = ptr;
-
-	if (!strcmp(*sys, "probe") && (*(separator + 1) == '/')) {
-		/* it's uprobe event */
-		separator2 = strchr(separator + 1, ':');
-		if (!separator2)
-			return -1;
-	} else
-		separator2 = separator;
-
-	/* find filter */
-	end = start + strlen(start);
-	while (*--end == ' ') {
-	}
-
-	if (*end == '/') {
-		char *filter_start;
-
-		filter_start = strchr(separator2, '/');
-		if (filter_start == end)
-			return -1;
-
-		ptr = malloc(end - filter_start + 2);
-		if (!ptr)
-			return -1;
-
-		memcpy(ptr, filter_start, end - filter_start + 1);
-		ptr[end - filter_start + 1] = '\0';
-
-		*filter = ptr;
-
-		end = filter_start;
-	} else {
-		*filter = NULL;
-		end++;
-	}
-
-	/* find event */
-	ptr = malloc(end - separator);
-	if (!ptr)
-		return -1;
-
-	memcpy(ptr, separator + 1, end - separator - 1);
-	ptr[end - separator - 1] = '\0';
-
-	strim(ptr);
-	*event = ptr;
-
-	return 0;
-}
-
-static char *get_next_eventdef(char *str)
-{
-	char *separator;
-
-	separator = strchr(str, ',');
-	if (!separator)
-		return str + strlen(str);
-
-	*separator = '\0';
-	return separator + 1;
-}
-
-ktap_string *ktapc_parse_eventdef(ktap_string *eventdef)
-{
-	const char *def_str = getstr(eventdef);
-	char *str = strdup(def_str);
-	char *sys, *event, *filter, *idstr, *g_idstr, *next;
-	ktap_string *ts;
-	int ret;
-
-	if (!ids_array) {
-		ids_array = malloc(IDS_ARRAY_SIZE);
-		if (!ids_array)
-			return NULL;
-	}
-
-	g_idstr = malloc(4096);
-	if (!g_idstr)
-		return NULL;
-
-	memset(g_idstr, 0, 4096);
-
- parse_next_eventdef:
-	memset(ids_array, 0, IDS_ARRAY_SIZE);
-
-	next = get_next_eventdef(str);
-
-	if (get_sys_event_filter_str(str, &sys, &event, &filter))
-		goto error;
-
-	verbose_printf("parse_eventdef: sys[%s], event[%s], filter[%s]\n",
-		       sys, event, filter);
-
-	if (!strcmp(sys, "probe"))
-		ret = parse_events_add_probe(event);
-	else if (!strcmp(sys, "stapsdt"))
-		ret = parse_events_add_stapsdt(event);
-	else
-		ret = parse_events_add_tracepoint(sys, event);
-
-	if (ret)
-		goto error;
-
-	/* don't trace ftrace:function when all tracepoints enabled */
-	if (!strcmp(sys, "*"))
-		clear_id(1);
-
-	idstr = get_idstr(filter);
-	if (!idstr)
-		goto error;
-
-	str = next;
-
-	g_idstr = strcat(g_idstr, idstr);
-	g_idstr = strcat(g_idstr, ",");
-
-	if (*next != '\0')
-		goto parse_next_eventdef;
-
-	ts = ktapc_ts_new(g_idstr);
-	free(g_idstr);	
-
-	return ts;
- error:
-	cleanup_event_resources();
-	return NULL;
-}
-
-void cleanup_event_resources(void)
-{
-	struct probe_list *pl;
-	const char *path;
-	char probe_event[32] = {0};
-	int fd, ret;
-
-	for (pl = probe_list_head; pl; pl = pl->next) {
-		if (pl->type == KPROBE_EVENT) {
-			path = KPROBE_EVENTS_PATH;
-			snprintf(probe_event, 32, "-:kprobes/kp%d", pl->kp_seq);
-		} else if (pl->type == UPROBE_EVENT) {
-			path = UPROBE_EVENTS_PATH;
-			snprintf(probe_event, 32, "-:uprobes/kp%d", pl->kp_seq);
-		} else {
-			fprintf(stderr, "Cannot cleanup event type %d\n", pl->type);
-			continue;
-		}
-
-		fd = open(path, O_WRONLY);
-		if (fd < 0) {
-			fprintf(stderr, "Cannot open %s\n", UPROBE_EVENTS_PATH);
-			continue;
-		}
-
-		ret = write(fd, probe_event, strlen(probe_event));
-		if (ret <= 0) {
-			fprintf(stderr, "Cannot write %s to %s\n", probe_event,
-					path);
-			close(fd);
-			continue;
-		}
-
-		close(fd);
-	}
-}
-
diff --git a/drivers/staging/ktap/userspace/ktapc.h b/drivers/staging/ktap/userspace/ktapc.h
deleted file mode 100644
index 879cd29d8c94..000000000000
--- a/drivers/staging/ktap/userspace/ktapc.h
+++ /dev/null
@@ -1,376 +0,0 @@
-/*
- * ktapc.h
- * only can be included by userspace compiler
- */
-
-#include <ctype.h>
-
-typedef int bool;
-#define false 0
-#define true 1
-
-#define MAX_INT         ((int)(~0U>>1))
-#define UCHAR_MAX	255
-
-#define MAX_SIZET  ((size_t)(~(size_t)0)-2)
-
-#define KTAP_ERRSYNTAX 3
-
-/*
- * KTAP_IDSIZE gives the maximum size for the description of the source
- * of a function in debug information.
- * CHANGE it if you want a different size.
- */
-#define KTAP_IDSIZE      60
-
-
-#define FIRST_RESERVED  257
-
-/*
- * maximum depth for nested C calls and syntactical nested non-terminals
- * in a program. (Value must fit in an unsigned short int.)
- */
-#define KTAP_MAXCCALLS          200
-
-#define KTAP_MULTRET     (-1)
-
-
-#define SHRT_MAX	UCHAR_MAX
-
-#define MAXUPVAL   UCHAR_MAX
-
-
-/* maximum stack for a ktap function */
-#define MAXSTACK        250
-
-#define islalpha(c)   (isalpha(c) || (c) == '_')
-#define islalnum(c)   (isalnum(c) || (c) == '_')
-
-#define isreserved(s) ((s)->tsv.tt == KTAP_TSHRSTR && (s)->tsv.extra > 0)
-
-#define ktap_numeq(a,b)		((a)==(b))
-#define ktap_numisnan(L,a)	(!ktap_numeq((a), (a)))
-
-#define ktap_numunm(a)		(-(a))
-
-/*
- * ** Comparison and arithmetic functions
- * */
-
-#define KTAP_OPADD       0       /* ORDER TM */
-#define KTAP_OPSUB       1
-#define KTAP_OPMUL       2
-#define KTAP_OPDIV       3
-#define KTAP_OPMOD       4
-#define KTAP_OPPOW       5
-#define KTAP_OPUNM       6
-
-#define KTAP_OPEQ        0
-#define KTAP_OPLT        1
-#define KTAP_OPLE        2
-
-
-/*
- * WARNING: if you change the order of this enumeration,
- * grep "ORDER RESERVED"
- */
-enum RESERVED {
-	/* terminal symbols denoted by reserved words */
-	TK_TRACE = FIRST_RESERVED, TK_TRACE_END,
-	TK_ARGEVENT, TK_ARGNAME,
-	TK_ARG1, TK_ARG2, TK_ARG3, TK_ARG4, TK_ARG5, TK_ARG6, TK_ARG7, TK_ARG8,
-	TK_ARG9, TK_PROFILE, TK_TICK,
-	TK_AND, TK_BREAK,
-	TK_DO, TK_ELSE, TK_ELSEIF, TK_END, TK_FALSE, TK_FOR, TK_FUNCTION,
-	TK_GOTO, TK_IF, TK_IN, TK_LOCAL, TK_NIL, TK_NOT, TK_OR, TK_REPEAT,
-	TK_RETURN, TK_THEN, TK_TRUE, TK_UNTIL, TK_WHILE,
-	/* other terminal symbols */
-	TK_CONCAT, TK_DOTS, TK_EQ, TK_GE, TK_LE, TK_NE, TK_INCR, TK_DBCOLON,
-	TK_EOS, TK_NUMBER, TK_NAME, TK_STRING
-};
-
-/* number of reserved words */
-#define NUM_RESERVED    ((int)(TK_WHILE-FIRST_RESERVED + 1))
-
-#define EOZ     (0)                    /* end of stream */
-
-typedef union {
-	ktap_number r;
-	ktap_string *ts;
-} ktap_seminfo;  /* semantics information */
-
-
-typedef struct ktap_token {
-	int token;
-	ktap_seminfo seminfo;
-} ktap_token;
-
-typedef struct ktap_mbuffer {
-	char *buffer;
-	size_t n;
-	size_t buffsize;
-} ktap_mbuffer;
-
-#define mbuff_init(buff)	((buff)->buffer = NULL, (buff)->buffsize = 0)
-#define mbuff(buff)		((buff)->buffer)
-#define mbuff_reset(buff)	((buff)->n = 0, memset((buff)->buffer, 0, (buff)->buffsize))
-#define mbuff_len(buff)		((buff)->n)
-#define mbuff_size(buff)	((buff)->buffsize)
-
-#define mbuff_resize(buff, size) \
-	(ktapc_realloc((buff)->buffer, (buff)->buffsize, size, char), \
-	(buff)->buffsize = size)
-
-#define mbuff_free(buff)        mbuff_resize(buff, 0)
-
-
-/*
- * state of the lexer plus state of the parser when shared by all
- * functions
- */
-typedef struct ktap_lexstate {
-	char *ptr; /* source file reading position */
-	int current;  /* current character (charint) */
-	int linenumber;  /* input line counter */
-	int lastline;  /* line of last token `consumed' */
-	ktap_token t;  /* current token */
-	ktap_token lookahead;  /* look ahead token */
-	struct ktap_funcstate *fs;  /* current function (parser) */
-	ktap_mbuffer *buff;  /* buffer for tokens */
-	struct ktap_dyndata *dyd;  /* dynamic structures used by the parser */
-	ktap_string *source;  /* current source name */
-	ktap_string *envn;  /* environment variable name */
-	char decpoint;  /* locale decimal point */
-	int nCcalls;
-} ktap_lexstate;
-
-
-/*
- * Expression descriptor
- */
-typedef enum {
-	VVOID,        /* no value */
-	VNIL,
-	VTRUE,
-	VFALSE,
-	VK,           /* info = index of constant in `k' */
-	VKNUM,        /* nval = numerical value */
-	VNONRELOC,    /* info = result register */
-	VLOCAL,       /* info = local register */
-	VUPVAL,       /* info = index of upvalue in 'upvalues' */
-	VINDEXED,     /* t = table register/upvalue; idx = index R/K */
-	VJMP,         /* info = instruction pc */
-	VRELOCABLE,   /* info = instruction pc */
-	VCALL,        /* info = instruction pc */
-	VVARARG,      /* info = instruction pc */
-	VEVENT,
-	VEVENTNAME,
-	VEVENTARG,
-} expkind;
-
-
-#define vkisvar(k)      (VLOCAL <= (k) && (k) <= VINDEXED)
-#define vkisinreg(k)    ((k) == VNONRELOC || (k) == VLOCAL)
-
-typedef struct ktap_expdesc {
-	expkind k;
-	union {
-		struct {  /* for indexed variables (VINDEXED) */
-			short idx;  /* index (R/K) */
-			u8 t;  /* table (register or upvalue) */
-			u8 vt;  /* whether 't' is register (VLOCAL) or upvalue (VUPVAL) */
-		} ind;
-		int info;  /* for generic use */
-		ktap_number nval;  /* for VKNUM */
-	} u;
-	int t;  /* patch list of `exit when true' */
-	int f;  /* patch list of `exit when false' */
-} ktap_expdesc;
-
-
-typedef struct ktap_vardesc {
-	short idx;  /* variable index in stack */
-} ktap_vardesc;
-
-
-/* description of pending goto statements and label statements */
-typedef struct ktap_labeldesc {
-	ktap_string *name;  /* label identifier */
-	int pc;  /* position in code */
-	int line;  /* line where it appeared */
-	u8 nactvar;  /* local level where it appears in current block */
-} ktap_labeldesc;
-
-
-/* list of labels or gotos */
-typedef struct ktap_labellist {
-	ktap_labeldesc *arr;  /* array */
-	int n;  /* number of entries in use */
-	int size;  /* array size */
-} ktap_labellist;
-
-
-/* dynamic structures used by the parser */
-typedef struct ktap_dyndata {
-	struct {  /* list of active local variables */
-		ktap_vardesc *arr;
-		int n;
-		int size;
-	} actvar;
-	ktap_labellist gt;  /* list of pending gotos */
-	ktap_labellist label;   /* list of active labels */
-} ktap_dyndata;
-
-
-/* control of blocks */
-struct ktap_blockcnt;  /* defined in lparser.c */
-
-
-/* state needed to generate code for a given function */
-typedef struct ktap_funcstate {
-	ktap_proto *f;  /* current function header */
-	ktap_table *h;  /* table to find (and reuse) elements in `k' */
-	struct ktap_funcstate *prev;  /* enclosing function */
-	struct ktap_lexstate *ls;  /* lexical state */
-	struct ktap_blockcnt *bl;  /* chain of current blocks */
-	int pc;  /* next position to code (equivalent to `ncode') */
-	int lasttarget;   /* 'label' of last 'jump label' */
-	int jpc;  /* list of pending jumps to `pc' */
-	int nk;  /* number of elements in `k' */
-	int np;  /* number of elements in `p' */
-	int firstlocal;  /* index of first local var (in ktap_dyndata array) */
-	short nlocvars;  /* number of elements in 'f->locvars' */
-	u8 nactvar;  /* number of active local variables */
-	u8 nups;  /* number of upvalues */
-	u8 freereg;  /* first free register */
-} ktap_funcstate;
-
-
-/*
- * Marks the end of a patch list. It is an invalid value both as an absolute
- * address, and as a list link (would link an element to itself).
- */
-#define NO_JUMP (-1)
-
-
-/*
- * grep "ORDER OPR" if you change these enums  (ORDER OP)
- */
-typedef enum BinOpr {
-	OPR_ADD, OPR_SUB, OPR_MUL, OPR_DIV, OPR_MOD, OPR_POW,
-	OPR_CONCAT,
-	OPR_EQ, OPR_LT, OPR_LE,
-	OPR_NE, OPR_GT, OPR_GE,
-	OPR_AND, OPR_OR,
-	OPR_NOBINOPR
-} BinOpr;
-
-
-typedef enum UnOpr { OPR_MINUS, OPR_NOT, OPR_LEN, OPR_NOUNOPR } UnOpr;
-
-
-#define getcode(fs,e)   ((fs)->f->code[(e)->u.info])
-
-#define codegen_codeAsBx(fs,o,A,sBx)       codegen_codeABx(fs,o,A,(sBx)+MAXARG_sBx)
-
-#define codegen_setmultret(fs,e)   codegen_setreturns(fs, e, KTAP_MULTRET)
-
-#define codegen_jumpto(fs,t)       codegen_patchlist(fs, codegen_jump(fs), t)
-
-
-#define ktapc_realloc(v, osize, nsize, t) \
-        ((v) = (t *)ktapc_reallocv(v, osize * sizeof(t), nsize * sizeof(t)))
-
-#define ktapc_reallocvector(v,oldn,n,t)	ktapc_realloc(v,oldn,n,t)
-
-
-#define ktapc_growvector(v,nelems,size,t,limit,e) \
-          if ((nelems)+1 > (size)) \
-            ((v)=(t *)ktapc_growaux(v,&(size),sizeof(t),limit,e))
-
-
-void lex_init();
-ktap_string *lex_newstring(ktap_lexstate *ls, const char *str, size_t l);
-const char *lex_token2str(ktap_lexstate *ls, int token);
-void lex_syntaxerror(ktap_lexstate *ls, const char *msg);
-void lex_setinput(ktap_lexstate *ls, char *ptr, ktap_string *source, int firstchar);
-void lex_next(ktap_lexstate *ls);
-int lex_lookahead(ktap_lexstate *ls);
-void lex_read_string_until(ktap_lexstate *ls, int c);
-ktap_closure *ktapc_parser(char *pos, const char *name);
-ktap_string *ktapc_ts_new(const char *str);
-int ktapc_ts_eqstr(ktap_string *a, ktap_string *b);
-ktap_string *ktapc_ts_newlstr(const char *str, size_t l);
-ktap_proto *ktapc_newproto();
-ktap_table *ktapc_table_new();
-const ktap_value *ktapc_table_get(ktap_table *t, const ktap_value *key);
-void ktapc_table_setvalue(ktap_table *t, const ktap_value *key, ktap_value *val);
-ktap_closure *ktapc_newlclosure(int n);
-char *ktapc_sprintf(const char *fmt, ...);
-
-void *ktapc_reallocv(void *block, size_t osize, size_t nsize);
-void *ktapc_growaux(void *block, int *size, size_t size_elems, int limit,
-		    const char *what);
-
-void ktapio_exit(void);
-int ktapio_create(const char *output_filename);
-
-ktap_string *ktapc_parse_eventdef(ktap_string *eventdef);
-void cleanup_event_resources(void);
-
-extern int verbose;
-#define verbose_printf(...) \
-	if (verbose)	\
-		printf("[verbose] " __VA_ARGS__);
-
-#define ktapc_equalobj(t1, t2)	kp_equalobjv(NULL, t1, t2)
-
-
-#include "../include/ktap_opcodes.h"
-
-int codegen_stringK(ktap_funcstate *fs, ktap_string *s);
-void codegen_indexed(ktap_funcstate *fs, ktap_expdesc *t, ktap_expdesc *k);
-void codegen_setreturns(ktap_funcstate *fs, ktap_expdesc *e, int nresults);
-void codegen_reserveregs(ktap_funcstate *fs, int n);
-void codegen_exp2nextreg(ktap_funcstate *fs, ktap_expdesc *e);
-void codegen_nil(ktap_funcstate *fs, int from, int n);
-void codegen_patchlist(ktap_funcstate *fs, int list, int target);
-void codegen_patchclose(ktap_funcstate *fs, int list, int level);
-int codegen_jump(ktap_funcstate *fs);
-void codegen_patchtohere(ktap_funcstate *fs, int list);
-int codegen_codeABx(ktap_funcstate *fs, OpCode o, int a, unsigned int bc);
-void codegen_ret(ktap_funcstate *fs, int first, int nret);
-void codegen_exp2anyregup(ktap_funcstate *fs, ktap_expdesc *e);
-void codegen_exp2val(ktap_funcstate *fs, ktap_expdesc *e);
-int codegen_exp2RK(ktap_funcstate *fs, ktap_expdesc *e);
-int codegen_codeABC(ktap_funcstate *fs, OpCode o, int a, int b, int c);
-void codegen_setlist(ktap_funcstate *fs, int base, int nelems, int tostore);
-void codegen_fixline (ktap_funcstate *fs, int line);
-void codegen_dischargevars(ktap_funcstate *fs, ktap_expdesc *e);
-void codegen_self(ktap_funcstate *fs, ktap_expdesc *e, ktap_expdesc *key);
-void codegen_prefix(ktap_funcstate *fs, UnOpr op, ktap_expdesc *e, int line);
-void codegen_infix(ktap_funcstate *fs, BinOpr op, ktap_expdesc *v);
-void codegen_posfix(ktap_funcstate *fs, BinOpr op, ktap_expdesc *e1, ktap_expdesc *e2, int line);
-void codegen_setoneret(ktap_funcstate *fs, ktap_expdesc *e);
-void codegen_storevar(ktap_funcstate *fs, ktap_expdesc *var, ktap_expdesc *ex);
-void codegen_storeincr(ktap_funcstate *fs, ktap_expdesc *var, ktap_expdesc *ex);
-void codegen_goiftrue(ktap_funcstate *fs, ktap_expdesc *e);
-int codegen_getlabel(ktap_funcstate *fs);
-int codegen_codek(ktap_funcstate *fs, int reg, int k);
-int codegen_numberK(ktap_funcstate *fs, ktap_number r);
-void codegen_checkstack(ktap_funcstate *fs, int n);
-void codegen_goiffalse(ktap_funcstate *fs, ktap_expdesc *e);
-void codegen_concat(ktap_funcstate *fs, int *l1, int l2);
-int codegen_exp2anyreg(ktap_funcstate *fs, ktap_expdesc *e);
-
-typedef int (*ktap_writer)(const void* p, size_t sz, void* ud);
-int ktapc_dump(const ktap_proto *f, ktap_writer w, void *data, int strip);
-
-void ktapc_chunkid(char *out, const char *source, size_t bufflen);
-int ktapc_str2d(const char *s, size_t len, ktap_number *result);
-int ktapc_hexavalue(int c);
-ktap_number ktapc_arith(int op, ktap_number v1, ktap_number v2);
-int ktapc_int2fb(unsigned int x);
-
-bool strglobmatch(const char *str, const char *pat);
-
diff --git a/drivers/staging/ktap/userspace/ktapio.c b/drivers/staging/ktap/userspace/ktapio.c
deleted file mode 100644
index f9bcab461f2a..000000000000
--- a/drivers/staging/ktap/userspace/ktapio.c
+++ /dev/null
@@ -1,108 +0,0 @@
-/*
- * ktapio.c - ring buffer transport in userspace
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <sys/poll.h>
-#include <sys/signal.h>
-#include <fcntl.h>
-#include <pthread.h>
-
-#define MAX_BUFLEN  131072
-#define PATH_MAX 128
-
-#define handle_error(str) do { perror(str); exit(-1); } while(0)
-
-extern pid_t ktap_pid;
-
-void sigfunc(int signo)
-{
-	/* should not not reach here */
-}
-
-static void block_sigint()
-{
-	sigset_t mask;
-
-	sigemptyset(&mask);
-	sigaddset(&mask, SIGINT);
-
-	pthread_sigmask(SIG_BLOCK, &mask, NULL);
-}
-
-static void *reader_thread(void *data)
-{
-	char buf[MAX_BUFLEN];
-	char filename[PATH_MAX];
-	const char *output = data; 
-	int failed = 0, fd, out_fd, len;
-
-	block_sigint();
-
-	if (output) {
-		out_fd = open(output, O_CREAT | O_WRONLY | O_TRUNC,
-					S_IRUSR|S_IWUSR);
-		if (out_fd < 0) {
-			fprintf(stderr, "Cannot open output file %s\n", output);
-			return NULL;
-		}
-	} else
-		out_fd = 2;
-
-	sprintf(filename, "/sys/kernel/debug/ktap/trace_pipe_%d", ktap_pid);
-
- open_again:
-	fd = open(filename, O_RDONLY);
-	if (fd < 0) {
-		usleep(10000);
-
-		if (failed++ == 10) {
-			fprintf(stderr, "Cannot open file %s\n", filename);
-			return NULL;
-		}
-		goto open_again;
-	}
-
-	while ((len = read(fd, buf, sizeof(buf))) > 0)
-		write(out_fd, buf, len);
-
-	close(fd);
-	close(out_fd);
-
-	return NULL;
-}
-
-int ktapio_create(const char *output)
-{
-	pthread_t reader;
-
-	signal(SIGINT, sigfunc);
-
-	if (pthread_create(&reader, NULL, reader_thread, (void *)output) < 0)
-		handle_error("pthread_create reader_thread failed\n");
-
-	return 0;
-}
-
diff --git a/drivers/staging/ktap/userspace/lex.c b/drivers/staging/ktap/userspace/lex.c
deleted file mode 100644
index 484dd7fdafc3..000000000000
--- a/drivers/staging/ktap/userspace/lex.c
+++ /dev/null
@@ -1,622 +0,0 @@
-/*
- * lex.c - ktap lexical analyzer
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
- *  - The part of code in this file is copied from lua initially.
- *  - lua's MIT license is compatible with GPL.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <locale.h>
-#include "../include/ktap_types.h"
-#include "ktapc.h"
-
-#define next(ls) (ls->current = *ls->ptr++)
-
-#define currIsNewline(ls)	(ls->current == '\n' || ls->current == '\r')
-
-#define KTAP_MINBUFFER   32
-
-/* ORDER RESERVED */
-static const char *const ktap_tokens [] = {
-	"trace", "trace_end", "argevent", "argname",
-	"arg1", "arg2", "arg3", "arg4", "arg5", "arg6", "arg7", "arg9", "arg9",
-	"profile", "tick",
-	"and", "break", "do", "else", "elseif",
-	"end", "false", "for", "function", "goto", "if",
-	"in", "local", "nil", "not", "or", "repeat",
-	"return", "then", "true", "until", "while",
-	"..", "...", "==", ">=", "<=", "!=", "+=", "::", "<eof>",
-	"<number>", "<name>", "<string>"
-};
-
-#define save_and_next(ls) (save(ls, ls->current), next(ls))
-
-static void lexerror(ktap_lexstate *ls, const char *msg, int token);
-
-static void save(ktap_lexstate *ls, int c)
-{
-	ktap_mbuffer *b = ls->buff;
-	if (mbuff_len(b) + 1 > mbuff_size(b)) {
-		size_t newsize;
-		if (mbuff_size(b) >= MAX_SIZET / 2)
-			lexerror(ls, "lexical element too long", 0);
-		newsize = mbuff_size(b) * 2;
-		mbuff_resize(b, newsize);
-	}
-	b->buffer[mbuff_len(b)++] = (char)c;
-}
-
-void lex_init()
-{
-	int i;
-	for (i = 0; i < NUM_RESERVED; i++) {
-		ktap_string *ts = ktapc_ts_new(ktap_tokens[i]);
-		ts->tsv.extra = (u8)(i+1);  /* reserved word */
-	}
-}
-
-const char *lex_token2str(ktap_lexstate *ls, int token)
-{
-	if (token < FIRST_RESERVED) {
-		ktap_assert(token == (unsigned char)token);
-		return (isprint(token)) ? ktapc_sprintf(KTAP_QL("%c"), token) :
-			ktapc_sprintf("char(%d)", token);
-	} else {
-		const char *s = ktap_tokens[token - FIRST_RESERVED];
-		if (token < TK_EOS)
-			return ktapc_sprintf(KTAP_QS, s);
-		else
-			return s;
-	}
-}
-
-static const char *txtToken(ktap_lexstate *ls, int token)
-{
-	switch (token) {
-	case TK_NAME:
-	case TK_STRING:
-	case TK_NUMBER:
-		save(ls, '\0');
-		return ktapc_sprintf(KTAP_QS, mbuff(ls->buff));
-	default:
-		return lex_token2str(ls, token);
-	}
-}
-
-static void lexerror(ktap_lexstate *ls, const char *msg, int token)
-{
-	char buff[KTAP_IDSIZE];
-	char *newmsg;
-
-	ktapc_chunkid(buff, getstr(ls->source), KTAP_IDSIZE);
-	newmsg = ktapc_sprintf("%s:%d: %s", buff, ls->linenumber, msg);
-	if (token)
-		newmsg = ktapc_sprintf("%s near %s", newmsg, txtToken(ls, token));
-	printf("lexerror: %s\n", newmsg);
-	exit(EXIT_FAILURE);
-}
-
-void lex_syntaxerror(ktap_lexstate *ls, const char *msg)
-{
-	lexerror(ls, msg, ls->t.token);
-}
-
-/*
- * creates a new string and anchors it in function's table so that
- * it will not be collected until the end of the function's compilation
- * (by that time it should be anchored in function's prototype)
- */
-ktap_string *lex_newstring(ktap_lexstate *ls, const char *str, size_t l)
-{
-	const ktap_value *o;  /* entry for `str' */
-	ktap_value val;  /* entry for `str' */
-	ktap_value tsv;
-	ktap_string *ts = ktapc_ts_newlstr(str, l);  /* create new string */
-	setsvalue(&tsv, ts); 
-	o = ktapc_table_get(ls->fs->h, &tsv);
-	if (ttisnil(o)) {  /* not in use yet? (see 'addK') */
-		/* boolean value does not need GC barrier;
-		table has no metatable, so it does not need to invalidate cache */
-		setbvalue(&val, 1);  /* t[string] = true */
-		ktapc_table_setvalue(ls->fs->h, &tsv, &val);
-	}
-	return ts;
-}
-
-/*
- * increment line number and skips newline sequence (any of
- * \n, \r, \n\r, or \r\n)
- */
-static void inclinenumber(ktap_lexstate *ls)
-{
-	int old = ls->current;
-	ktap_assert(currIsNewline(ls));
-	next(ls);  /* skip `\n' or `\r' */
-	if (currIsNewline(ls) && ls->current != old)
-		next(ls);  /* skip `\n\r' or `\r\n' */
-	if (++ls->linenumber >= MAX_INT)
-		lex_syntaxerror(ls, "chunk has too many lines");
-}
-
-void lex_setinput(ktap_lexstate *ls, char *ptr, ktap_string *source, int firstchar)
-{
-	ls->decpoint = '.';
-	ls->current = firstchar;
-	ls->lookahead.token = TK_EOS;  /* no look-ahead token */
-	ls->ptr = ptr;
-	ls->fs = NULL;
-	ls->linenumber = 1;
-	ls->lastline = 1;
-	ls->source = source;
-	ls->envn = ktapc_ts_new(KTAP_ENV);  /* create env name */
-	mbuff_resize(ls->buff, KTAP_MINBUFFER);  /* initialize buffer */
-}
-
-/*
- * =======================================================
- * LEXICAL ANALYZER
- * =======================================================
- */
-static int check_next(ktap_lexstate *ls, const char *set)
-{
-	if (ls->current == '\0' || !strchr(set, ls->current))
-		return 0;
-	save_and_next(ls);
-	return 1;
-}
-
-/*
- * change all characters 'from' in buffer to 'to'
- */
-static void buffreplace(ktap_lexstate *ls, char from, char to)
-{
-	size_t n = mbuff_len(ls->buff);
-	char *p = mbuff(ls->buff);
-	while (n--)
-		if (p[n] == from) p[n] = to;
-}
-
-#if !defined(getlocaledecpoint)
-#define getlocaledecpoint()	(localeconv()->decimal_point[0])
-#endif
-
-#define mbuff2d(b,e)	ktapc_str2d(mbuff(b), mbuff_len(b) - 1, e)
-
-/*
- * in case of format error, try to change decimal point separator to
- * the one defined in the current locale and check again
- */
-static void trydecpoint(ktap_lexstate *ls, ktap_seminfo *seminfo)
-{
-	char old = ls->decpoint;
-	ls->decpoint = getlocaledecpoint();
-	buffreplace(ls, old, ls->decpoint);  /* try new decimal separator */
-	if (!mbuff2d(ls->buff, &seminfo->r)) {
-		/* format error with correct decimal point: no more options */
-		buffreplace(ls, ls->decpoint, '.');  /* undo change (for error message) */
-		lexerror(ls, "malformed number", TK_NUMBER);
-	}
-}
-
-/*
- * this function is quite liberal in what it accepts, as 'ktapc_str2d'
- * will reject ill-formed numerals.
- */
-static void read_numeral(ktap_lexstate *ls, ktap_seminfo *seminfo)
-{
-	const char *expo = "Ee";
-	int first = ls->current;
-
-	ktap_assert(isdigit(ls->current));
-	save_and_next(ls);
-	if (first == '0' && check_next(ls, "Xx"))  /* hexadecimal? */
-		expo = "Pp";
-	for (;;) {
-		if (check_next(ls, expo))  /* exponent part? */
-			check_next(ls, "+-");  /* optional exponent sign */
-		if (isxdigit(ls->current) || ls->current == '.')
-			save_and_next(ls);
-		else
-			break;
-	}
-	save(ls, '\0');
-	buffreplace(ls, '.', ls->decpoint);  /* follow locale for decimal point */
-	if (!mbuff2d(ls->buff, &seminfo->r))  /* format error? */
-		trydecpoint(ls, seminfo); /* try to update decimal point separator */
-}
-
-/*
- * skip a sequence '[=*[' or ']=*]' and return its number of '='s or
- * -1 if sequence is malformed
- */
-static int skip_sep(ktap_lexstate *ls)
-{
-	int count = 0;
-	int s = ls->current;
-
-	ktap_assert(s == '[' || s == ']');
-	save_and_next(ls);
-	while (ls->current == '=') {
-		save_and_next(ls);
-		count++;
-	}
-	return (ls->current == s) ? count : (-count) - 1;
-}
-
-static void read_long_string(ktap_lexstate *ls, ktap_seminfo *seminfo, int sep)
-{
-	save_and_next(ls);  /* skip 2nd `[' */
-	if (currIsNewline(ls))  /* string starts with a newline? */
-		inclinenumber(ls);  /* skip it */
-	for (;;) {
-		switch (ls->current) {
-		case EOZ:
-			lexerror(ls, (seminfo) ? "unfinished long string" :
-				"unfinished long comment", TK_EOS);
-			break;  /* to avoid warnings */
-		case ']': {
-			if (skip_sep(ls) == sep) {
-				save_and_next(ls);  /* skip 2nd `]' */
-				goto endloop;
-			}
-			break;
-		}
-		case '\n':
-		case '\r': {
-			save(ls, '\n');
-			inclinenumber(ls);
-			/* avoid wasting space */
-			if (!seminfo)
-				mbuff_reset(ls->buff);
-			break;
-		}
-		default: {
-			if (seminfo)
-				save_and_next(ls);
-			else
-				next(ls);
-		}
-		}
-	}
-
- endloop:
-	if (seminfo)
-		seminfo->ts = lex_newstring(ls, mbuff(ls->buff) + (2 + sep),
-			mbuff_len(ls->buff) - 2*(2 + sep));
-}
-
-static void escerror(ktap_lexstate *ls, int *c, int n, const char *msg)
-{
-	int i;
-	mbuff_reset(ls->buff);  /* prepare error message */
-	save(ls, '\\');
-	for (i = 0; i < n && c[i] != EOZ; i++)
-		save(ls, c[i]);
-	lexerror(ls, msg, TK_STRING);
-}
-
-static int readhexaesc(ktap_lexstate *ls)
-{
-	int c[3], i;  /* keep input for error message */
-	int r = 0;  /* result accumulator */
-	c[0] = 'x';  /* for error message */
-	for (i = 1; i < 3; i++) {  /* read two hexa digits */
-		c[i] = next(ls);
-		if (!isxdigit(c[i]))
-			escerror(ls, c, i + 1, "hexadecimal digit expected");
-		r = (r << 4) + ktapc_hexavalue(c[i]);
-	}
-	return r;
-}
-
-static int readdecesc(ktap_lexstate *ls)
-{
-	int c[3], i;
-	int r = 0;  /* result accumulator */
-	for (i = 0; i < 3 && isdigit(ls->current); i++) {  /* read up to 3 digits */
-		c[i] = ls->current;
-		r = 10*r + c[i] - '0';
-		next(ls);
-	}
-	if (r > UCHAR_MAX)
-		escerror(ls, c, i, "decimal escape too large");
-	return r;
-}
-
-static void read_string(ktap_lexstate *ls, int del, ktap_seminfo *seminfo)
-{
-	save_and_next(ls);  /* keep delimiter (for error messages) */
-	while (ls->current != del) {
-		switch (ls->current) {
-		case EOZ:
-			lexerror(ls, "unfinished string", TK_EOS);
-			break;  /* to avoid warnings */
-		case '\n':
-		case '\r':
-			lexerror(ls, "unfinished string", TK_STRING);
-			break;  /* to avoid warnings */
-		case '\\': {  /* escape sequences */
-			int c;  /* final character to be saved */
-			next(ls);  /* do not save the `\' */
-			switch (ls->current) {
-			case 'a': c = '\a'; goto read_save;
-			case 'b': c = '\b'; goto read_save;
-			case 'f': c = '\f'; goto read_save;
-			case 'n': c = '\n'; goto read_save;
-			case 'r': c = '\r'; goto read_save;
-			case 't': c = '\t'; goto read_save;
-			case 'v': c = '\v'; goto read_save;
-			case 'x': c = readhexaesc(ls); goto read_save;
-			case '\n': case '\r':
-				inclinenumber(ls); c = '\n'; goto only_save;
-			case '\\': case '\"': case '\'':
-				c = ls->current; goto read_save;
-			case EOZ: goto no_save;  /* will raise an error next loop */
-			case 'z': {  /* zap following span of spaces */
-				next(ls);  /* skip the 'z' */
-				while (isspace(ls->current)) {
-					if (currIsNewline(ls))
-						inclinenumber(ls);
-					else
-						next(ls);
-				}
-				goto no_save;
-			}
-			default: {
-				if (!isdigit(ls->current))
-					escerror(ls, &ls->current, 1, "invalid escape sequence");
-				/* digital escape \ddd */
-				c = readdecesc(ls);
-				goto only_save;
-			}
-			}
- read_save:
-			next(ls);  /* read next character */
- only_save:
-			save(ls, c);  /* save 'c' */
- no_save:
-			break;
-		}
-		default:
-			save_and_next(ls);
-		}
-	}
-	save_and_next(ls);  /* skip delimiter */
-	seminfo->ts = lex_newstring(ls, mbuff(ls->buff) + 1, mbuff_len(ls->buff) - 2);
-}
-
-static int llex(ktap_lexstate *ls, ktap_seminfo *seminfo)
-{
-	mbuff_reset(ls->buff);
-
-	for (;;) {
-		switch (ls->current) {
-		case '\n': case '\r': {  /* line breaks */
-			inclinenumber(ls);
-			break;
-		}
-		case ' ': case '\f': case '\t': case '\v': {  /* spaces */
-			next(ls);
-			break;
-		}
-		case '#': {
-			while (!currIsNewline(ls) && ls->current != EOZ)
-				next(ls);  /* skip until end of line (or end of file) */
-			break;
-		}
-		#if 0
-		case '-': {  /* '-' or '--' (comment) */
-			next(ls);
-			if (ls->current != '-')
-				return '-';
-			/* else is a comment */
-			next(ls);
-			if (ls->current == '[') {  /* long comment? */
-				int sep = skip_sep(ls);
-				mbuff_reset(ls->buff);  /* `skip_sep' may dirty the buffer */
-				if (sep >= 0) {
-					read_long_string(ls, NULL, sep);  /* skip long comment */
-					mbuff_reset(ls->buff);  /* previous call may dirty the buff. */
-					break;
-				}
-			}
-			/* else short comment */
-			while (!currIsNewline(ls) && ls->current != EOZ)
-				next(ls);  /* skip until end of line (or end of file) */
-			break;
-		}
-		#endif
-		case '[': {  /* long string or simply '[' */
-			int sep = skip_sep(ls);
-			if (sep >= 0) {
-				read_long_string(ls, seminfo, sep);
-				return TK_STRING;
-			}
-			else if (sep == -1)
-				return '[';
-			else
-				lexerror(ls, "invalid long string delimiter", TK_STRING);
-		}
-		case '+': {
-			next(ls);
-			if (ls->current != '=')
-				return '+';
-			else {
-				next(ls);
-				return TK_INCR;
-			}
-		}
-		case '=': {
-			next(ls);
-			if (ls->current != '=')
-				return '=';
-			else {
-				next(ls);
-				return TK_EQ;
-			}
-		}
-		case '<': {
-			next(ls);
-			if (ls->current != '=')
-				return '<';
-			else {
-				next(ls);
-				return TK_LE;
-			}
-		}
-		case '>': {
-			next(ls);
-			if (ls->current != '=')
-				return '>';
-			else {
-				next(ls);
-				return TK_GE;
-			}
-		}
-		case '!': {
-			next(ls);
-			if (ls->current != '=')
-				return TK_NOT;
-			else {
-				next(ls);
-				return TK_NE;
-			}
-		}
-		case ':': {
-			next(ls);
-			if (ls->current != ':')
-				return ':';
-			else {
-				next(ls);
-				return TK_DBCOLON;
-			}
-		}
-		case '"': case '\'': {  /* short literal strings */
-			read_string(ls, ls->current, seminfo);
-			return TK_STRING;
-		}
-		case '.': {  /* '.', '..', '...', or number */
-			save_and_next(ls);
-			if (check_next(ls, ".")) {
-				if (check_next(ls, "."))
-					return TK_DOTS;   /* '...' */
-				else
-					return TK_CONCAT;   /* '..' */
-			}
-			else if (!isdigit(ls->current))
-				return '.';
-			/* else go through */
-		}
-		case '0': case '1': case '2': case '3': case '4':
-		case '5': case '6': case '7': case '8': case '9': {
-			read_numeral(ls, seminfo);
-			return TK_NUMBER;
-		}
-		case EOZ: {
-			return TK_EOS;
-		}
-		case '&': {
-			next(ls);
-			if (ls->current != '&')
-				return '&';
-			else {
-				next(ls);
-				return TK_AND;
-			}
-		} 
-		case '|': {
-			next(ls);
-			if (ls->current != '|')
-				return '|';
-			else {
-				next(ls);
-				return TK_OR;
-			}
-		} 
-		default: {
-			if (islalpha(ls->current)) {
-				/* identifier or reserved word? */
-				ktap_string *ts;
-				do {
-					save_and_next(ls);
-				} while (islalnum(ls->current));
-				ts = lex_newstring(ls, mbuff(ls->buff),
-							mbuff_len(ls->buff));
-				seminfo->ts = ts;
-				if (isreserved(ts))  /* reserved word? */
-					return ts->tsv.extra - 1 +
-						FIRST_RESERVED;
-				else {
-					return TK_NAME;
-				}
-			} else {  /* single-char tokens (+ - / ...) */
-				int c = ls->current;
-				next(ls);
-				return c;
-			}
-		}
-		}
-	}
-}
-
-void lex_read_string_until(ktap_lexstate *ls, int c)
-{
-	ktap_string *ts;
-	char errmsg[32];
-
-	mbuff_reset(ls->buff);
-
-	while (ls->current == ' ')
-		next(ls);
-
-	do {
-		save_and_next(ls);
-	} while (ls->current != c && ls->current != EOZ);
-
-	if (ls->current != c) {
-		sprintf(errmsg, "expect %c", c);
-		lexerror(ls, errmsg, 0);
-	}
-
-	ts = lex_newstring(ls, mbuff(ls->buff), mbuff_len(ls->buff));
-	ls->t.seminfo.ts = ts;
-	ls->t.token = TK_STRING;
-}
-
-void lex_next(ktap_lexstate *ls)
-{
-	ls->lastline = ls->linenumber;
-	if (ls->lookahead.token != TK_EOS) {  /* is there a look-ahead token? */
-		ls->t = ls->lookahead;  /* use this one */
-		ls->lookahead.token = TK_EOS;  /* and discharge it */
-	} else
-		ls->t.token = llex(ls, &ls->t.seminfo);  /* read next token */
-}
-
-int lex_lookahead(ktap_lexstate *ls)
-{
-	ktap_assert(ls->lookahead.token == TK_EOS);
-	ls->lookahead.token = llex(ls, &ls->lookahead.seminfo);
-	return ls->lookahead.token;
-}
-
diff --git a/drivers/staging/ktap/userspace/main.c b/drivers/staging/ktap/userspace/main.c
deleted file mode 100644
index 2aa686a99914..000000000000
--- a/drivers/staging/ktap/userspace/main.c
+++ /dev/null
@@ -1,609 +0,0 @@
-/*
- * main.c - ktap compiler and loader entry
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <sched.h>
-#include <string.h>
-#include <signal.h>
-#include <stdarg.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <sys/ioctl.h>
-#include <sys/types.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <math.h>
-
-#include "../include/ktap_types.h"
-#include "../include/ktap_opcodes.h"
-#include "ktapc.h"
-
-
-/*******************************************************************/
-
-void *ktapc_reallocv(void *block, size_t osize, size_t nsize)
-{
-	return kp_reallocv(NULL, block, osize, nsize);
-}
-
-ktap_closure *ktapc_newlclosure(int n)
-{
-	return kp_newlclosure(NULL, n);
-}
-
-ktap_proto *ktapc_newproto()
-{
-	return kp_newproto(NULL);
-}
-
-const ktap_value *ktapc_table_get(ktap_table *t, const ktap_value *key)
-{
-	return kp_table_get(t, key);
-}
-
-void ktapc_table_setvalue(ktap_table *t, const ktap_value *key, ktap_value *val)
-{
-	kp_table_setvalue(NULL, t, key, val);
-}
-
-ktap_table *ktapc_table_new()
-{
-	return kp_table_new(NULL);
-}
-
-ktap_string *ktapc_ts_newlstr(const char *str, size_t l)
-{
-	return kp_tstring_newlstr(NULL, str, l);
-}
-
-ktap_string *ktapc_ts_new(const char *str)
-{
-	return kp_tstring_new(NULL, str);
-}
-
-int ktapc_ts_eqstr(ktap_string *a, ktap_string *b)
-{
-	return kp_tstring_eqstr(a, b);
-}
-
-static void ktapc_runerror(const char *err_msg_fmt, ...)
-{
-	va_list ap;
-
-	fprintf(stderr, "ktapc_runerror\n");
-
-	va_start(ap, err_msg_fmt);
-	vfprintf(stderr, err_msg_fmt, ap);
-	va_end(ap);
-
-	exit(EXIT_FAILURE);
-}
-
-/*
- * todo: memory leak here
- */
-char *ktapc_sprintf(const char *fmt, ...)
-{
-	char *msg = malloc(128);
-
-	va_list argp;
-	va_start(argp, fmt);
-	vsprintf(msg, fmt, argp);
-	va_end(argp);
-	return msg;
-}
-
-
-#define MINSIZEARRAY	4
-
-void *ktapc_growaux(void *block, int *size, size_t size_elems, int limit,
-		    const char *what)
-{
-	void *newblock;
-	int newsize;
-
-	if (*size >= limit/2) {  /* cannot double it? */
-		if (*size >= limit)  /* cannot grow even a little? */
-			ktapc_runerror("too many %s (limit is %d)\n",
-					what, limit);
-		newsize = limit;  /* still have at least one free place */
-	} else {
-		newsize = (*size) * 2;
-		if (newsize < MINSIZEARRAY)
-			newsize = MINSIZEARRAY;  /* minimum size */
-	}
-
-	newblock = ktapc_reallocv(block, (*size) * size_elems, newsize * size_elems);
-	*size = newsize;  /* update only when everything else is OK */
-	return newblock;
-}
-
-/*************************************************************************/
-
-#define print_base(i) \
-	do {	\
-		if (i < f->sizelocvars) /* it's a localvars */ \
-			printf("%s", getstr(f->locvars[i].varname));  \
-		else \
-			printf("base + %d", i);	\
-	} while (0)
-
-#define print_RKC(instr)	\
-	do {	\
-		if (ISK(GETARG_C(instr))) \
-			kp_showobj(NULL, k + INDEXK(GETARG_C(instr))); \
-		else \
-			print_base(GETARG_C(instr)); \
-	} while (0)
-
-static void decode_instruction(ktap_proto *f, int instr)
-{
-	int opcode = GET_OPCODE(instr);
-	ktap_value *k;
-
-	k = f->k;
-
-	printf("%.8x\t", instr);
-	printf("%s\t", ktap_opnames[opcode]);
-
-	switch (opcode) {
-	case OP_GETTABUP:
-		print_base(GETARG_A(instr));
-		printf(" <- ");
-
-		if (GETARG_B(instr) == 0)
-			printf("global");
-		else
-			printf("upvalues[%d]", GETARG_B(instr));
-
-		printf("{"); print_RKC(instr); printf("}");
-
-		break;
-	case OP_GETTABLE:
-		print_base(GETARG_A(instr));
-		printf(" <- ");
-
-		print_base(GETARG_B(instr));
-
-		printf("{");
-		print_RKC(instr);
-		printf("}");
-		break;
-	case OP_LOADK:
-		printf("\t");
-		print_base(GETARG_A(instr));
-		printf(" <- ");
-
-		kp_showobj(NULL, k + GETARG_Bx(instr));
-		break;
-	case OP_CALL:
-		printf("\t");
-		print_base(GETARG_A(instr));
-		break;
-	case OP_JMP:
-		printf("\t%d", GETARG_sBx(instr));
-		break;
-	default:
-		break;
-	}
-
-	printf("\n");
-}
-
-static int function_nr = 0;
-
-/* this is a debug function used for check bytecode chunk file */
-static void dump_function(int level, ktap_proto *f)
-{
-	int i;
-
-	printf("\n----------------------------------------------------\n");
-	printf("function %d [level %d]:\n", function_nr++, level);
-	printf("linedefined: %d\n", f->linedefined);
-	printf("lastlinedefined: %d\n", f->lastlinedefined);
-	printf("numparams: %d\n", f->numparams);
-	printf("is_vararg: %d\n", f->is_vararg);
-	printf("maxstacksize: %d\n", f->maxstacksize);
-	printf("source: %s\n", getstr(f->source));
-	printf("sizelineinfo: %d \t", f->sizelineinfo);
-	for (i = 0; i < f->sizelineinfo; i++)
-		printf("%d ", f->lineinfo[i]);
-	printf("\n");
-
-	printf("sizek: %d\n", f->sizek);
-	for (i = 0; i < f->sizek; i++) {
-		switch(f->k[i].type) {
-		case KTAP_TNIL:
-			printf("\tNIL\n");
-			break;
-		case KTAP_TBOOLEAN:
-			printf("\tBOOLEAN: ");
-			printf("%d\n", f->k[i].val.b);
-			break;
-		case KTAP_TNUMBER:
-			printf("\tTNUMBER: ");
-			printf("%ld\n", f->k[i].val.n);
-			break;
-		case KTAP_TSTRING:
-			printf("\tTSTRING: ");
-			printf("%s\n", svalue(&(f->k[i])));
-
-			break;
-		default:
-			printf("\terror: unknow constant type\n");
-		}
-	}
-
-	printf("sizelocvars: %d\n", f->sizelocvars);
-	for (i = 0; i < f->sizelocvars; i++) {
-		printf("\tlocvars: %s startpc: %d endpc: %d\n",
-			getstr(f->locvars[i].varname), f->locvars[i].startpc,
-			f->locvars[i].endpc);
-	}
-
-	printf("sizeupvalues: %d\n", f->sizeupvalues);
-	for (i = 0; i < f->sizeupvalues; i++) {
-		printf("\tname: %s instack: %d idx: %d\n",
-			getstr(f->upvalues[i].name), f->upvalues[i].instack,
-			f->upvalues[i].idx);
-	}
-
-	printf("\n");
-	printf("sizecode: %d\n", f->sizecode);
-	for (i = 0; i < f->sizecode; i++)
-		decode_instruction(f, f->code[i]);
-
-	printf("sizep: %d\n", f->sizep);
-	for (i = 0; i < f->sizep; i++)
-		dump_function(level + 1, f->p[i]);
-
-}
-
-static void usage(const char *msg_fmt, ...)
-{
-	va_list ap;
-
-	va_start(ap, msg_fmt);
-	fprintf(stderr, msg_fmt, ap);
-	va_end(ap);
-
-	fprintf(stderr,
-"Usage: ktap [options] file [script args] -- cmd [args]\n"
-"   or: ktap [options] -e one-liner  -- cmd [args]\n"
-"\n"
-"Options and arguments:\n"
-"  -o file        : send script output to file, instead of stderr\n"
-"  -p pid         : specific tracing pid\n"
-"  -C cpu         : cpu to monitor in system-wide\n"
-"  -T             : show timestamp for event\n"
-"  -V             : show version\n"
-"  -v             : enable verbose mode\n"
-"  -s             : simple event tracing\n"
-"  -b             : list byte codes\n"
-"  file           : program read from script file\n"
-"  -- cmd [args]  : workload to tracing\n");
-
-	exit(EXIT_FAILURE);
-}
-
-ktap_global_state dummy_global_state;
-
-static void init_dummy_global_state()
-{
-	memset(&dummy_global_state, 0, sizeof(ktap_global_state));
-	dummy_global_state.seed = 201236;
-
-        kp_tstring_resize(NULL, 32); /* set inital string hashtable size */
-}
-
-#define handle_error(str) do { perror(str); exit(-1); } while(0)
-
-static struct ktap_parm uparm;
-static int ktap_trunk_mem_size = 1024;
-
-static int ktapc_writer(const void* p, size_t sz, void* ud)
-{
-	if (uparm.trunk_len + sz > ktap_trunk_mem_size) {
-		int new_size = (uparm.trunk_len + sz) * 2;
-		uparm.trunk = realloc(uparm.trunk, new_size);
-		ktap_trunk_mem_size = new_size;
-	}
-
-	memcpy(uparm.trunk + uparm.trunk_len, p, sz);
-	uparm.trunk_len += sz;
-
-	return 0;
-}
-
-
-static int forks;
-static char **workload_argv;
-
-static int fork_workload(int ktap_fd)
-{
-	int pid;
-
-	pid = fork();
-	if (pid < 0)
-		handle_error("failed to fork");
-
-	if (pid > 0)
-		return pid;
-
-	signal(SIGTERM, SIG_DFL);
-
-	execvp("", workload_argv);
-
-	/*
-	 * waiting ktapvm prepare all tracing event
-	 * make it more robust in future.
-	 */
-	pause();
-
-	execvp(workload_argv[0], workload_argv);
-
-	perror(workload_argv[0]);
-	exit(-1);
-
-	return -1;
-}
-
-#define KTAPVM_PATH "/sys/kernel/debug/ktap/ktapvm"
-
-static char *output_filename;
-pid_t ktap_pid;
-
-static int run_ktapvm()
-{
-        int ktapvm_fd, ktap_fd;
-	int ret;
-
-	ktap_pid = getpid();
-
-	ktapvm_fd = open(KTAPVM_PATH, O_RDONLY);
-	if (ktapvm_fd < 0)
-		handle_error("open " KTAPVM_PATH " failed");
-
-	ktap_fd = ioctl(ktapvm_fd, 0, NULL);
-	if (ktap_fd < 0)
-		handle_error("ioctl ktapvm failed");
-
-	ktapio_create(output_filename);
-
-	if (forks) {
-		uparm.trace_pid = fork_workload(ktap_fd);
-		uparm.workload = 1;
-	}
-
-	ret = ioctl(ktap_fd, KTAP_CMD_IOC_RUN, &uparm);
-
-	close(ktap_fd);
-	close(ktapvm_fd);
-
-	return ret;
-}
-
-int verbose;
-static int dump_bytecode;
-static char oneline_src[1024];
-static int trace_pid = -1;
-static int trace_cpu = -1;
-static int print_timestamp;
-
-#define SIMPLE_ONE_LINER_FMT	\
-	"trace %s { print(cpu(), tid(), execname(), argevent) }"
-
-static const char *script_file;
-static int script_args_start;
-static int script_args_end;
-
-static void parse_option(int argc, char **argv)
-{
-	char pid[32] = {0};
-	char cpu_str[32] = {0};
-	char *next_arg;
-	int i, j;
-
-	for (i = 1; i < argc; i++) {
-		if (argv[i][0] != '-') {
-			script_file = argv[i];
-			if (!script_file)
-				usage("");
-
-			script_args_start = i + 1;
-			script_args_end = argc;
-
-			for (j = i + 1; j < argc; j++) {
-				if (argv[j][0] == '-' && argv[j][1] == '-')
-					goto found_cmd;
-			}
-
-			return;
-		}
-
-		if (argv[i][0] == '-' && argv[i][1] == '-') {
-			j = i;
-			goto found_cmd;
-		}
-
-		next_arg = argv[i + 1];
-
-		switch (argv[i][1]) {
-		case 'o':
-			output_filename = malloc(strlen(next_arg) + 1);
-			if (!output_filename)
-				return;
-
-			strncpy(output_filename, next_arg, strlen(next_arg));
-			i++;
-			break;
-		case 'e':
-			strncpy(oneline_src, next_arg, strlen(next_arg));
-			i++;
-			break;
-		case 'p':
-			strncpy(pid, next_arg, strlen(next_arg));
-			trace_pid = atoi(pid);
-			i++;
-			break;
-		case 'C':
-			strncpy(cpu_str, next_arg, strlen(next_arg));
-			trace_cpu = atoi(cpu_str);
-			i++;
-			break;
-		case 'T':
-			print_timestamp = 1;
-			break;
-		case 'v':
-			verbose = 1;
-			break;
-		case 's':
-			sprintf(oneline_src, SIMPLE_ONE_LINER_FMT, next_arg);
-			i++;
-			break;
-		case 'b':
-			dump_bytecode = 1;
-			break;
-		case 'V':
-		case '?':
-		case 'h':
-			usage("");
-			break;
-		default:
-			usage("wrong argument\n");
-			break;
-		}
-	}
-
-	return;
-
- found_cmd:
-	script_args_end = j;
-	forks = 1;
-	workload_argv = &argv[j + 1];
-}
-
-static void compile(const char *input)
-{
-	ktap_closure *cl;
-	char *buff;
-	struct stat sb;
-	int fdin;
-
-	if (oneline_src[0] != '\0') {
-		init_dummy_global_state();
-		cl = ktapc_parser(oneline_src, input);
-		goto dump;
-	}
-
-	fdin = open(input, O_RDONLY);
-	if (fdin < 0) {
-		fprintf(stderr, "open file %s failed\n", input);
-		exit(-1);
-	}
-
-	if (fstat(fdin, &sb) == -1)
-		handle_error("fstat failed");
-
-	buff = mmap(NULL, sb.st_size, PROT_READ, MAP_PRIVATE, fdin, 0);
-	if (buff == MAP_FAILED)
-		handle_error("mmap failed");
-
-	init_dummy_global_state();
-	cl = ktapc_parser(buff, input);
-
-	munmap(buff, sb.st_size);
-	close(fdin);
-
- dump:
-	if (dump_bytecode) {
-		dump_function(1, cl->l.p);
-		exit(0);
-	}
-
-	/* ktapc output */
-	uparm.trunk = malloc(ktap_trunk_mem_size);
-	if (!uparm.trunk)
-		handle_error("malloc failed");
-
-	ktapc_dump(cl->l.p, ktapc_writer, NULL, 0);
-}
-
-int main(int argc, char **argv)
-{
-	char **ktapvm_argv;
-	int new_index, i;
-	int ret;
-
-	if (argc == 1)
-		usage("");
-
-	parse_option(argc, argv);
-
-	if (oneline_src[0] != '\0')
-		script_file = "one-liner";
-
-	compile(script_file);
-
-	ktapvm_argv = (char **)malloc(sizeof(char *)*(script_args_end -
-					script_args_start + 1));
-	if (!ktapvm_argv) {
-		fprintf(stderr, "canno allocate ktapvm_argv\n");
-		return -1;
-	}
-
-	ktapvm_argv[0] = malloc(strlen(script_file) + 1);
-	if (!ktapvm_argv[0]) {
-		fprintf(stderr, "canno allocate memory\n");
-		return -1;
-	}
-	strcpy(ktapvm_argv[0], script_file);
-	ktapvm_argv[0][strlen(script_file)] = '\0';
-
-	/* pass rest argv into ktapvm */
-	new_index = 1;
-	for (i = script_args_start; i < script_args_end; i++) {
-		ktapvm_argv[new_index] = malloc(strlen(argv[i]) + 1);
-		if (!ktapvm_argv[new_index]) {
-			fprintf(stderr, "canno allocate memory\n");
-			return -1;
-		}
-		strcpy(ktapvm_argv[new_index], argv[i]);
-		ktapvm_argv[new_index][strlen(argv[i])] = '\0';
-		new_index++;
-	}
-
-	uparm.argv = ktapvm_argv;
-	uparm.argc = new_index;
-	uparm.verbose = verbose;
-	uparm.trace_pid = trace_pid;
-	uparm.trace_cpu = trace_cpu;
-	uparm.print_timestamp = print_timestamp;
-
-	/* start running into kernel ktapvm */
-	ret = run_ktapvm();
-
-	cleanup_event_resources();
-	return ret;
-}
-
-
diff --git a/drivers/staging/ktap/userspace/parser.c b/drivers/staging/ktap/userspace/parser.c
deleted file mode 100644
index dd9e2de692ad..000000000000
--- a/drivers/staging/ktap/userspace/parser.c
+++ /dev/null
@@ -1,1910 +0,0 @@
-/*
- * parser.c - ktap parser
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
- *  - The part of code in this file is copied from lua initially.
- *  - lua's MIT license is compatible with GPL.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "../include/ktap_types.h"
-#include "../include/ktap_opcodes.h"
-#include "ktapc.h"
-
-/* maximum number of local variables per function (must be smaller
-   than 250, due to the bytecode format) */
-#define MAXVARS		200
-
-#define hasmultret(k)		((k) == VCALL || (k) == VVARARG)
-
-
-/*
- * nodes for block list (list of active blocks)
- */
-typedef struct ktap_blockcnt {
-	struct ktap_blockcnt *previous;  /* chain */
-	short firstlabel;  /* index of first label in this block */
-	short firstgoto;  /* index of first pending goto in this block */
-	u8 nactvar;  /* # active locals outside the block */
-	u8 upval;  /* true if some variable in the block is an upvalue */
-	 u8 isloop;  /* true if `block' is a loop */
-} ktap_blockcnt;
-
-/*
- * prototypes for recursive non-terminal functions
- */
-static void statement (ktap_lexstate *ls);
-static void expr (ktap_lexstate *ls, ktap_expdesc *v);
-
-static void anchor_token(ktap_lexstate *ls)
-{
-	/* last token from outer function must be EOS */
-	ktap_assert((int)(ls->fs != NULL) || ls->t.token == TK_EOS);
-	if (ls->t.token == TK_NAME || ls->t.token == TK_STRING) {
-		ktap_string *ts = ls->t.seminfo.ts;
-		lex_newstring(ls, getstr(ts), ts->tsv.len);
-	}
-}
-
-/* semantic error */
-static void semerror(ktap_lexstate *ls, const char *msg)
-{
-	ls->t.token = 0;  /* remove 'near to' from final message */
-	lex_syntaxerror(ls, msg);
-}
-
-static void error_expected(ktap_lexstate *ls, int token)
-{
-	lex_syntaxerror(ls,
-		ktapc_sprintf("%s expected", lex_token2str(ls, token)));
-}
-
-static void errorlimit(ktap_funcstate *fs, int limit, const char *what)
-{
-	const char *msg;
-	int line = fs->f->linedefined;
-	const char *where = (line == 0) ? "main function"
-				: ktapc_sprintf("function at line %d", line);
-
-	msg = ktapc_sprintf("too many %s (limit is %d) in %s",
-				what, limit, where);
-	lex_syntaxerror(fs->ls, msg);
-}
-
-static void checklimit(ktap_funcstate *fs, int v, int l, const char *what)
-{
-	if (v > l)
-		errorlimit(fs, l, what);
-}
-
-static int testnext(ktap_lexstate *ls, int c)
-{
-	if (ls->t.token == c) {
-		lex_next(ls);
-		return 1;
-	}
-	else
-		return 0;
-}
-
-static void check(ktap_lexstate *ls, int c)
-{
-	if (ls->t.token != c)
-		error_expected(ls, c);
-}
-
-static void checknext(ktap_lexstate *ls, int c)
-{
-	check(ls, c);
-	lex_next(ls);
-}
-
-#define check_condition(ls,c,msg)	{ if (!(c)) lex_syntaxerror(ls, msg); }
-
-static void check_match(ktap_lexstate *ls, int what, int who, int where)
-{
-	if (!testnext(ls, what)) {
-		if (where == ls->linenumber)
-			error_expected(ls, what);
-		else {
-			lex_syntaxerror(ls, ktapc_sprintf(
-					"%s expected (to close %s at line %d)",
-					lex_token2str(ls, what),
-					lex_token2str(ls, who), where));
-		}
-	}
-}
-
-static ktap_string *str_checkname(ktap_lexstate *ls)
-{
-	ktap_string *ts;
-
-	check(ls, TK_NAME);
-	ts = ls->t.seminfo.ts;
-	lex_next(ls);
-	return ts;
-}
-
-static void init_exp(ktap_expdesc *e, expkind k, int i)
-{
-	e->f = e->t = NO_JUMP;
-	e->k = k;
-	e->u.info = i;
-}
-
-static void codestring(ktap_lexstate *ls, ktap_expdesc *e, ktap_string *s)
-{
-	init_exp(e, VK, codegen_stringK(ls->fs, s));
-}
-
-static void checkname(ktap_lexstate *ls, ktap_expdesc *e)
-{
-	codestring(ls, e, str_checkname(ls));
-}
-
-static int registerlocalvar(ktap_lexstate *ls, ktap_string *varname)
-{
-	ktap_funcstate *fs = ls->fs;
-	ktap_proto *f = fs->f;
-	int oldsize = f->sizelocvars;
-
-	ktapc_growvector(f->locvars, fs->nlocvars, f->sizelocvars,
-			 ktap_locvar, SHRT_MAX, "local variables");
-
-	while (oldsize < f->sizelocvars)
-		f->locvars[oldsize++].varname = NULL;
-
-	f->locvars[fs->nlocvars].varname = varname;
-	return fs->nlocvars++;
-}
-
-static void new_localvar(ktap_lexstate *ls, ktap_string *name)
-{
-	ktap_funcstate *fs = ls->fs;
-	ktap_dyndata *dyd = ls->dyd;
-	int reg = registerlocalvar(ls, name);
-
-	checklimit(fs, dyd->actvar.n + 1 - fs->firstlocal,
-		   MAXVARS, "local variables");
-	ktapc_growvector(dyd->actvar.arr, dyd->actvar.n + 1,
-			 dyd->actvar.size, ktap_vardesc, MAX_INT, "local variables");
-	dyd->actvar.arr[dyd->actvar.n++].idx = (short)reg;
-}
-
-static void new_localvarliteral_(ktap_lexstate *ls, const char *name, size_t sz)
-{
-	new_localvar(ls, lex_newstring(ls, name, sz));
-}
-
-#define new_localvarliteral(ls,v) \
-	new_localvarliteral_(ls, "" v, (sizeof(v)/sizeof(char))-1)
-
-static ktap_locvar *getlocvar(ktap_funcstate *fs, int i)
-{
-	int idx = fs->ls->dyd->actvar.arr[fs->firstlocal + i].idx;
-
-	ktap_assert(idx < fs->nlocvars);
-	return &fs->f->locvars[idx];
-}
-
-static void adjustlocalvars(ktap_lexstate *ls, int nvars)
-{
-	ktap_funcstate *fs = ls->fs;
-
-	fs->nactvar = (u8)(fs->nactvar + nvars);
-	for (; nvars; nvars--) {
-		getlocvar(fs, fs->nactvar - nvars)->startpc = fs->pc;
-	}
-}
-
-static void removevars(ktap_funcstate *fs, int tolevel)
-{
-	fs->ls->dyd->actvar.n -= (fs->nactvar - tolevel);
-
-	while (fs->nactvar > tolevel)
-		getlocvar(fs, --fs->nactvar)->endpc = fs->pc;
-}
-
-static int searchupvalue(ktap_funcstate *fs, ktap_string *name)
-{
-	int i;
-	ktap_upvaldesc *up = fs->f->upvalues;
-
-	for (i = 0; i < fs->nups; i++) {
-		if (ktapc_ts_eqstr(up[i].name, name))
-			return i;
-	}
-	return -1;  /* not found */
-}
-
-static int newupvalue(ktap_funcstate *fs, ktap_string *name, ktap_expdesc *v)
-{
-	ktap_proto *f = fs->f;
-	int oldsize = f->sizeupvalues;
-
-	checklimit(fs, fs->nups + 1, MAXUPVAL, "upvalues");
-	ktapc_growvector(f->upvalues, fs->nups, f->sizeupvalues,
-			 ktap_upvaldesc, MAXUPVAL, "upvalues");
-
-	while (oldsize < f->sizeupvalues)
-		f->upvalues[oldsize++].name = NULL;
-	f->upvalues[(int)fs->nups].instack = (v->k == VLOCAL);
-	f->upvalues[(int)fs->nups].idx = (u8)(v->u.info);
-	f->upvalues[(int)fs->nups].name = name;
-	return fs->nups++;
-}
-
-static int searchvar(ktap_funcstate *fs, ktap_string *n)
-{
-	int i;
-
-	for (i = fs->nactvar-1; i >= 0; i--) {
-		if (ktapc_ts_eqstr(n, getlocvar(fs, i)->varname))
-			return i;
-	}
-	return -1;  /* not found */
-}
-
-/*
- * Mark block where variable at given level was defined
- * (to emit close instructions later).
- */
-static void markupval(ktap_funcstate *fs, int level)
-{
-	ktap_blockcnt *bl = fs->bl;
-
-	while (bl->nactvar > level)
-		bl = bl->previous;
-	bl->upval = 1;
-}
-
-/*
- * Find variable with given name 'n'. If it is an upvalue, add this
- * upvalue into all intermediate functions.
- */
-static int singlevaraux(ktap_funcstate *fs, ktap_string *n, ktap_expdesc *var, int base)
-{
-	if (fs == NULL)  /* no more levels? */
-		return VVOID;  /* default is global */
-	else {
-		int v = searchvar(fs, n);  /* look up locals at current level */
-		if (v >= 0) {  /* found? */
-			init_exp(var, VLOCAL, v);  /* variable is local */
-			if (!base)
-				markupval(fs, v);  /* local will be used as an upval */
-			return VLOCAL;
-		} else {  /* not found as local at current level; try upvalues */
-			int idx = searchupvalue(fs, n);  /* try existing upvalues */
-			if (idx < 0) {  /* not found? */
-				if (singlevaraux(fs->prev, n, var, 0) == VVOID) /* try upper levels */
-					return VVOID;  /* not found; is a global */
-				/* else was LOCAL or UPVAL */
-				idx  = newupvalue(fs, n, var);  /* will be a new upvalue */
-			}
-			init_exp(var, VUPVAL, idx);
-			return VUPVAL;
-		}
-	}
-}
-
-static void singlevar(ktap_lexstate *ls, ktap_expdesc *var)
-{
-	ktap_string *varname = str_checkname(ls);
-	ktap_funcstate *fs = ls->fs;
-
-	if (singlevaraux(fs, varname, var, 1) == VVOID) {  /* global name? */
-		ktap_expdesc key;
-		singlevaraux(fs, ls->envn, var, 1);  /* get environment variable */
-		ktap_assert(var->k == VLOCAL || var->k == VUPVAL);
-		codestring(ls, &key, varname);  /* key is variable name */
-		codegen_indexed(fs, var, &key);  /* env[varname] */
-	}
-}
-
-static void adjust_assign(ktap_lexstate *ls, int nvars, int nexps, ktap_expdesc *e)
-{
-	ktap_funcstate *fs = ls->fs;
-	int extra = nvars - nexps;
-
-	if (hasmultret(e->k)) {
-		extra++;  /* includes call itself */
-		if (extra < 0)
-			extra = 0;
-		codegen_setreturns(fs, e, extra);  /* last exp. provides the difference */
-		if (extra > 1)
-			codegen_reserveregs(fs, extra-1);
-	} else {
-		if (e->k != VVOID)
-			codegen_exp2nextreg(fs, e);  /* close last expression */
-		if (extra > 0) {
-			int reg = fs->freereg;
-
-			codegen_reserveregs(fs, extra);
-			codegen_nil(fs, reg, extra);
-		}
-	}
-}
-
-static void enterlevel(ktap_lexstate *ls)
-{
-	++ls->nCcalls;
-	checklimit(ls->fs, ls->nCcalls, KTAP_MAXCCALLS, "C levels");
-}
-
-static void closegoto(ktap_lexstate *ls, int g, ktap_labeldesc *label)
-{
-	int i;
-	ktap_funcstate *fs = ls->fs;
-	ktap_labellist *gl = &ls->dyd->gt;
-	ktap_labeldesc *gt = &gl->arr[g];
-
-	ktap_assert(ktapc_ts_eqstr(gt->name, label->name));
-	if (gt->nactvar < label->nactvar) {
-		ktap_string *vname = getlocvar(fs, gt->nactvar)->varname;
-		const char *msg = ktapc_sprintf(
-			"<goto %s> at line %d jumps into the scope of local " KTAP_QS,
-			getstr(gt->name), gt->line, getstr(vname));
-		semerror(ls, msg);
-	}
-
-	codegen_patchlist(fs, gt->pc, label->pc);
-	/* remove goto from pending list */
-	for (i = g; i < gl->n - 1; i++)
-		gl->arr[i] = gl->arr[i + 1];
-	gl->n--;
-}
-
-/*
- * try to close a goto with existing labels; this solves backward jumps
- */
-static int findlabel(ktap_lexstate *ls, int g)
-{
-	int i;
-	ktap_blockcnt *bl = ls->fs->bl;
-	ktap_dyndata *dyd = ls->dyd;
-	ktap_labeldesc *gt = &dyd->gt.arr[g];
-
-	/* check labels in current block for a match */
-	for (i = bl->firstlabel; i < dyd->label.n; i++) {
-		ktap_labeldesc *lb = &dyd->label.arr[i];
-		if (ktapc_ts_eqstr(lb->name, gt->name)) {  /* correct label? */
-			if (gt->nactvar > lb->nactvar &&
-				(bl->upval || dyd->label.n > bl->firstlabel))
-				codegen_patchclose(ls->fs, gt->pc, lb->nactvar);
-			closegoto(ls, g, lb);  /* close it */
-			return 1;
-		}
-	}
-	return 0;  /* label not found; cannot close goto */
-}
-
-static int newlabelentry(ktap_lexstate *ls, ktap_labellist *l, ktap_string *name,
-			 int line, int pc)
-{
-	int n = l->n;
-
-	ktapc_growvector(l->arr, n, l->size,
-			 ktap_labeldesc, SHRT_MAX, "labels/gotos");
-	l->arr[n].name = name;
-	l->arr[n].line = line;
-	l->arr[n].nactvar = ls->fs->nactvar;
-	l->arr[n].pc = pc;
-	l->n++;
-	return n;
-}
-
-
-/*
- * check whether new label 'lb' matches any pending gotos in current
- * block; solves forward jumps
- */
-static void findgotos(ktap_lexstate *ls, ktap_labeldesc *lb)
-{
-	ktap_labellist *gl = &ls->dyd->gt;
-	int i = ls->fs->bl->firstgoto;
-
-	while (i < gl->n) {
-		if (ktapc_ts_eqstr(gl->arr[i].name, lb->name))
-			closegoto(ls, i, lb);
-		else
-			i++;
-	}
-}
-
-/*
- * "export" pending gotos to outer level, to check them against
- * outer labels; if the block being exited has upvalues, and
- * the goto exits the scope of any variable (which can be the
- * upvalue), close those variables being exited.
- */
-static void movegotosout(ktap_funcstate *fs, ktap_blockcnt *bl)
-{
-	int i = bl->firstgoto;
-	ktap_labellist *gl = &fs->ls->dyd->gt;
-
-	/* correct pending gotos to current block and try to close it
-		with visible labels */
-	while (i < gl->n) {
-		ktap_labeldesc *gt = &gl->arr[i];
-
-		if (gt->nactvar > bl->nactvar) {
-			if (bl->upval)
-				codegen_patchclose(fs, gt->pc, bl->nactvar);
-			gt->nactvar = bl->nactvar;
-		}
-		if (!findlabel(fs->ls, i))
-			i++;  /* move to next one */
-	}
-}
-
-static void enterblock(ktap_funcstate *fs, ktap_blockcnt *bl, u8 isloop)
-{
-	bl->isloop = isloop;
-	bl->nactvar = fs->nactvar;
-	bl->firstlabel = fs->ls->dyd->label.n;
-	bl->firstgoto = fs->ls->dyd->gt.n;
-	bl->upval = 0;
-	bl->previous = fs->bl;
-	fs->bl = bl;
-	ktap_assert(fs->freereg == fs->nactvar);
-}
-
-
-/*
- * create a label named "break" to resolve break statements
- */
-static void breaklabel(ktap_lexstate *ls)
-{
-	ktap_string *n = ktapc_ts_new("break");
-	int l = newlabelentry(ls, &ls->dyd->label, n, 0, ls->fs->pc);
-
-	findgotos(ls, &ls->dyd->label.arr[l]);
-}
-
-/*
- * generates an error for an undefined 'goto'; choose appropriate
- * message when label name is a reserved word (which can only be 'break')
- */
-static void undefgoto(ktap_lexstate *ls, ktap_labeldesc *gt)
-{
-	const char *msg = isreserved(gt->name)
-			? "<%s> at line %d not inside a loop"
-			: "no visible label " KTAP_QS " for <goto> at line %d";
-
-	msg = ktapc_sprintf(msg, getstr(gt->name), gt->line);
-	semerror(ls, msg);
-}
-
-static void leaveblock(ktap_funcstate *fs)
-{
-	ktap_blockcnt *bl = fs->bl;
-	ktap_lexstate *ls = fs->ls;
-	if (bl->previous && bl->upval) {
-		/* create a 'jump to here' to close upvalues */
-		int j = codegen_jump(fs);
-
-		codegen_patchclose(fs, j, bl->nactvar);
-		codegen_patchtohere(fs, j);
-	}
-
-	if (bl->isloop)
-		breaklabel(ls);  /* close pending breaks */
-
-	fs->bl = bl->previous;
-	removevars(fs, bl->nactvar);
-	ktap_assert(bl->nactvar == fs->nactvar);
-	fs->freereg = fs->nactvar;  /* free registers */
-	ls->dyd->label.n = bl->firstlabel;  /* remove local labels */
-	if (bl->previous)  /* inner block? */
-		movegotosout(fs, bl);  /* update pending gotos to outer block */
-	else if (bl->firstgoto < ls->dyd->gt.n)  /* pending gotos in outer block? */
-		undefgoto(ls, &ls->dyd->gt.arr[bl->firstgoto]);  /* error */
-}
-
-/*
- * adds a new prototype into list of prototypes
- */
-static ktap_proto *addprototype(ktap_lexstate *ls)
-{
-	ktap_proto *clp;
-	ktap_funcstate *fs = ls->fs;
-	ktap_proto *f = fs->f;  /* prototype of current function */
-
-	if (fs->np >= f->sizep) {
-		int oldsize = f->sizep;
-		ktapc_growvector(f->p, fs->np, f->sizep, ktap_proto *, MAXARG_Bx, "functions");
-		while (oldsize < f->sizep)
-			f->p[oldsize++] = NULL;
-	}
-	f->p[fs->np++] = clp = ktapc_newproto();
-	return clp;
-}
-
-/*
- * codes instruction to create new closure in parent function
- */
-static void codeclosure(ktap_lexstate *ls, ktap_expdesc *v)
-{
-	ktap_funcstate *fs = ls->fs->prev;
-	init_exp(v, VRELOCABLE, codegen_codeABx(fs, OP_CLOSURE, 0, fs->np - 1));
-	codegen_exp2nextreg(fs, v);  /* fix it at stack top (for GC) */
-}
-
-static void open_func(ktap_lexstate *ls, ktap_funcstate *fs, ktap_blockcnt *bl)
-{
-	ktap_proto *f;
-
-	fs->prev = ls->fs;  /* linked list of funcstates */
-	fs->ls = ls;
-	ls->fs = fs;
-	fs->pc = 0;
-	fs->lasttarget = 0;
-	fs->jpc = NO_JUMP;
-	fs->freereg = 0;
-	fs->nk = 0;
-	fs->np = 0;
-	fs->nups = 0;
-	fs->nlocvars = 0;
-	fs->nactvar = 0;
-	fs->firstlocal = ls->dyd->actvar.n;
-	fs->bl = NULL;
-	f = fs->f;
-	f->source = ls->source;
-	f->maxstacksize = 2;  /* registers 0/1 are always valid */
-	fs->h = ktapc_table_new();
-	//table_resize(NULL, fs->h, 32, 32);
-	enterblock(fs, bl, 0);
-}
-
-static void close_func(ktap_lexstate *ls)
-{
-	ktap_funcstate *fs = ls->fs;
-	ktap_proto *f = fs->f;
-
-	codegen_ret(fs, 0, 0);  /* final return */
-	leaveblock(fs);
-	ktapc_reallocvector(f->code, f->sizecode, fs->pc, ktap_instruction);
-	f->sizecode = fs->pc;
-	ktapc_reallocvector(f->lineinfo, f->sizelineinfo, fs->pc, int);
-	f->sizelineinfo = fs->pc;
-	ktapc_reallocvector(f->k, f->sizek, fs->nk, ktap_value);
-	f->sizek = fs->nk;
-	ktapc_reallocvector(f->p, f->sizep, fs->np, ktap_proto *);
-	f->sizep = fs->np;
-	ktapc_reallocvector(f->locvars, f->sizelocvars, fs->nlocvars, ktap_locvar);
-	f->sizelocvars = fs->nlocvars;
-	ktapc_reallocvector(f->upvalues, f->sizeupvalues, fs->nups, ktap_upvaldesc);
-	f->sizeupvalues = fs->nups;
-	ktap_assert((int)(fs->bl == NULL));
-	ls->fs = fs->prev;
-	/* last token read was anchored in defunct function; must re-anchor it */
-	anchor_token(ls);
-}
-
-/*============================================================*/
-/* GRAMMAR RULES */
-/*============================================================*/
-
-/*
- * check whether current token is in the follow set of a block.
- * 'until' closes syntactical blocks, but do not close scope,
- * so it handled in separate.
- */
-static int block_follow(ktap_lexstate *ls, int withuntil)
-{
-	switch (ls->t.token) {
-	case TK_ELSE: case TK_ELSEIF:
-	case TK_END: case TK_EOS:
-		return 1;
-	case TK_UNTIL:
-		return withuntil;
-	case '}':
-		return 1;
-	default:
-		return 0;
-	}
-}
-
-static void statlist(ktap_lexstate *ls)
-{
-	/* statlist -> { stat [`;'] } */
-	while (!block_follow(ls, 1)) {
-		if (ls->t.token == TK_RETURN) {
-			statement(ls);
-			return;  /* 'return' must be last statement */
-		}
-		statement(ls);
-	}
-}
-
-static void fieldsel(ktap_lexstate *ls, ktap_expdesc *v)
-{
-	/* fieldsel -> ['.' | ':'] NAME */
-	ktap_funcstate *fs = ls->fs;
-	ktap_expdesc key;
-
-	codegen_exp2anyregup(fs, v);
-	lex_next(ls);  /* skip the dot or colon */
-	checkname(ls, &key);
-	codegen_indexed(fs, v, &key);
-}
-
-static void yindex(ktap_lexstate *ls, ktap_expdesc *v)
-{
-	/* index -> '[' expr ']' */
-	lex_next(ls);  /* skip the '[' */
-	expr(ls, v);
-	codegen_exp2val(ls->fs, v);
-	checknext(ls, ']');
-}
-
-/*
- * {======================================================================
- * Rules for Constructors
- * =======================================================================
- */
-struct ConsControl {
-	ktap_expdesc v;  /* last list item read */
-	ktap_expdesc *t;  /* table descriptor */
-	int nh;  /* total number of `record' elements */
-	int na;  /* total number of array elements */
-	int tostore;  /* number of array elements pending to be stored */
-};
-
-static void recfield(ktap_lexstate *ls, struct ConsControl *cc)
-{
-	/* recfield -> (NAME | `['exp1`]') = exp1 */
-	ktap_funcstate *fs = ls->fs;
-	int reg = ls->fs->freereg;
-	ktap_expdesc key, val;
-	int rkkey;
-
-	if (ls->t.token == TK_NAME) {
-		checklimit(fs, cc->nh, MAX_INT, "items in a constructor");
-		checkname(ls, &key);
-	} else  /* ls->t.token == '[' */
-		yindex(ls, &key);
-
-	cc->nh++;
-  	checknext(ls, '=');
-	rkkey = codegen_exp2RK(fs, &key);
-	expr(ls, &val);
-	codegen_codeABC(fs, OP_SETTABLE, cc->t->u.info, rkkey, codegen_exp2RK(fs, &val));
-	fs->freereg = reg;  /* free registers */
-}
-
-static void closelistfield(ktap_funcstate *fs, struct ConsControl *cc)
-{
-	if (cc->v.k == VVOID)
-		return;  /* there is no list item */
-  	codegen_exp2nextreg(fs, &cc->v);
-	cc->v.k = VVOID;
-	if (cc->tostore == LFIELDS_PER_FLUSH) {
-		codegen_setlist(fs, cc->t->u.info, cc->na, cc->tostore);  /* flush */
-		cc->tostore = 0;  /* no more items pending */
-	}
-}
-
-static void lastlistfield(ktap_funcstate *fs, struct ConsControl *cc)
-{
-	if (cc->tostore == 0)
-		return;
-
-	if (hasmultret(cc->v.k)) {
-		codegen_setmultret(fs, &cc->v);
-		codegen_setlist(fs, cc->t->u.info, cc->na, KTAP_MULTRET);
-		cc->na--;  /* do not count last expression (unknown number of elements) */
-	} else {
-		if (cc->v.k != VVOID)
-			codegen_exp2nextreg(fs, &cc->v);
-		codegen_setlist(fs, cc->t->u.info, cc->na, cc->tostore);
-	}
-}
-
-static void listfield(ktap_lexstate *ls, struct ConsControl *cc)
-{
-	/* listfield -> exp */
-	expr(ls, &cc->v);
-	checklimit(ls->fs, cc->na, MAX_INT, "items in a constructor");
-	cc->na++;
-	cc->tostore++;
-}
-
-static void field(ktap_lexstate *ls, struct ConsControl *cc)
-{
-	/* field -> listfield | recfield */
-	switch(ls->t.token) {
-	case TK_NAME: {  /* may be 'listfield' or 'recfield' */
-		if (lex_lookahead(ls) != '=')  /* expression? */
-			listfield(ls, cc);
-		else
-			recfield(ls, cc);
-		break;
-	}
-	case '[': {
-		recfield(ls, cc);
-		break;
-	}
-	default:
-		listfield(ls, cc);
-		break;
-	}
-}
-
-static void constructor(ktap_lexstate *ls, ktap_expdesc *t)
-{
-	/* constructor -> '{' [ field { sep field } [sep] ] '}'
-		sep -> ',' | ';' */
-	ktap_funcstate *fs = ls->fs;
-	int line = ls->linenumber;
-	int pc = codegen_codeABC(fs, OP_NEWTABLE, 0, 0, 0);
-	struct ConsControl cc;
-
-	cc.na = cc.nh = cc.tostore = 0;
-	cc.t = t;
-	init_exp(t, VRELOCABLE, pc);
-	init_exp(&cc.v, VVOID, 0);  /* no value (yet) */
-	codegen_exp2nextreg(ls->fs, t);  /* fix it at stack top */
-	checknext(ls, '{');
-	do {
-		ktap_assert(cc.v.k == VVOID || cc.tostore > 0);
-		if (ls->t.token == '}')
-			break;
-		closelistfield(fs, &cc);
-		field(ls, &cc);
-	} while (testnext(ls, ',') || testnext(ls, ';'));
-	check_match(ls, '}', '{', line);
-	lastlistfield(fs, &cc);
-	SETARG_B(fs->f->code[pc], ktapc_int2fb(cc.na)); /* set initial array size */
-	SETARG_C(fs->f->code[pc], ktapc_int2fb(cc.nh));  /* set initial table size */
-}
-
-/* }====================================================================== */
-
-static void parlist(ktap_lexstate *ls)
-{
-	/* parlist -> [ param { `,' param } ] */
-	ktap_funcstate *fs = ls->fs;
-	ktap_proto *f = fs->f;
-	int nparams = 0;
-	f->is_vararg = 0;
-
-	if (ls->t.token != ')') {  /* is `parlist' not empty? */
-		do {
-			switch (ls->t.token) {
-			case TK_NAME: {  /* param -> NAME */
-				new_localvar(ls, str_checkname(ls));
-				nparams++;
-				break;
-			}
-			case TK_DOTS: {  /* param -> `...' */
-				lex_next(ls);
-				f->is_vararg = 1;
-				break;
-			}
-			default:
-				lex_syntaxerror(ls, "<name> or " KTAP_QL("...") " expected");
-			}
-		} while (!f->is_vararg && testnext(ls, ','));
-	}
-	adjustlocalvars(ls, nparams);
-	f->numparams = (u8)(fs->nactvar);
-	codegen_reserveregs(fs, fs->nactvar);  /* reserve register for parameters */
-}
-
-static void body(ktap_lexstate *ls, ktap_expdesc *e, int ismethod, int line)
-{
-	/* body ->  `(' parlist `)' block END */
-	ktap_funcstate new_fs;
-	ktap_blockcnt bl;
-
-	new_fs.f = addprototype(ls);
-	new_fs.f->linedefined = line;
-	open_func(ls, &new_fs, &bl);
-	checknext(ls, '(');
-	if (ismethod) {
-		new_localvarliteral(ls, "self");  /* create 'self' parameter */
-		adjustlocalvars(ls, 1);
-	}
-	parlist(ls);
-	checknext(ls, ')');
-	checknext(ls, '{');
-	statlist(ls);
-	new_fs.f->lastlinedefined = ls->linenumber;
-	checknext(ls, '}');
-	//check_match(ls, TK_END, TK_FUNCTION, line);
-	codeclosure(ls, e);
-	close_func(ls);
-}
-
-static void func_body_no_args(ktap_lexstate *ls, ktap_expdesc *e, int line)
-{
-	/* body ->  `(' parlist `)' block END */
-	ktap_funcstate new_fs;
-	ktap_blockcnt bl;
-
-	new_fs.f = addprototype(ls);
-	new_fs.f->linedefined = line;
-	open_func(ls, &new_fs, &bl);
-	checknext(ls, '{');
-	statlist(ls);
-	new_fs.f->lastlinedefined = ls->linenumber;
-	checknext(ls, '}');
-	//check_match(ls, TK_END, TK_FUNCTION, line);
-	codeclosure(ls, e);
-	close_func(ls);
-}
-
-static int explist(ktap_lexstate *ls, ktap_expdesc *v)
-{
-	/* explist -> expr { `,' expr } */
-	int n = 1;  /* at least one expression */
-
-	expr(ls, v);
-	while (testnext(ls, ',')) {
-		codegen_exp2nextreg(ls->fs, v);
-		expr(ls, v);
-		n++;
-	}
-	return n;
-}
-
-static void funcargs(ktap_lexstate *ls, ktap_expdesc *f, int line)
-{
-	ktap_funcstate *fs = ls->fs;
-	ktap_expdesc args;
-	int base, nparams;
-
-	switch (ls->t.token) {
-	case '(': {  /* funcargs -> `(' [ explist ] `)' */
-		lex_next(ls);
-		if (ls->t.token == ')')  /* arg list is empty? */
-			args.k = VVOID;
-		else {
-			explist(ls, &args);
-			codegen_setmultret(fs, &args);
-		}
-		check_match(ls, ')', '(', line);
-		break;
-	}
-	case '{': {  /* funcargs -> constructor */
-		constructor(ls, &args);
-		break;
-	}
-	case TK_STRING: {  /* funcargs -> STRING */
-		codestring(ls, &args, ls->t.seminfo.ts);
-		lex_next(ls);  /* must use `seminfo' before `next' */
-		break;
-	}
-	default: {
-		lex_syntaxerror(ls, "function arguments expected");
-	}
-	}
-	ktap_assert(f->k == VNONRELOC);
-	base = f->u.info;  /* base register for call */
-	if (hasmultret(args.k))
-		nparams = KTAP_MULTRET;  /* open call */
-	else {
-		if (args.k != VVOID)
-			codegen_exp2nextreg(fs, &args);  /* close last argument */
-		nparams = fs->freereg - (base+1);
-	}
-	init_exp(f, VCALL, codegen_codeABC(fs, OP_CALL, base, nparams+1, 2));
-	codegen_fixline(fs, line);
-	fs->freereg = base+1;  /* call remove function and arguments and leaves
-				(unless changed) one result */
-}
-
-/*
- * {======================================================================
- * Expression parsing
- * =======================================================================
- */
-static void primaryexp(ktap_lexstate *ls, ktap_expdesc *v)
-{
-	/* primaryexp -> NAME | '(' expr ')' */
-	switch (ls->t.token) {
-	case '(': {
-		int line = ls->linenumber;
-
-		lex_next(ls);
-		expr(ls, v);
-		check_match(ls, ')', '(', line);
-		codegen_dischargevars(ls->fs, v);
-		return;
-	}
-	case TK_NAME:
-		singlevar(ls, v);
-		return;
-	default:
-		lex_syntaxerror(ls, "unexpected symbol");
-	}
-}
-
-static void suffixedexp(ktap_lexstate *ls, ktap_expdesc *v)
-{
-	/* suffixedexp ->
-		primaryexp { '.' NAME | '[' exp ']' | ':' NAME funcargs | funcargs } */
-	ktap_funcstate *fs = ls->fs;
-	int line = ls->linenumber;
-
-	primaryexp(ls, v);
-	for (;;) {
-		switch (ls->t.token) {
-		case '.': {  /* fieldsel */
-			fieldsel(ls, v);
-			break;
-		}
-		case '[': {  /* `[' exp1 `]' */
-			ktap_expdesc key;
-			codegen_exp2anyregup(fs, v);
-			yindex(ls, &key);
-			codegen_indexed(fs, v, &key);
-			break;
-		}
-		case ':': {  /* `:' NAME funcargs */
-			ktap_expdesc key;
-			lex_next(ls);
-			checkname(ls, &key);
-			codegen_self(fs, v, &key);
-			funcargs(ls, v, line);
-			break;
-		}
-		case '(': case TK_STRING: case '{': {  /* funcargs */
-			codegen_exp2nextreg(fs, v);
-			funcargs(ls, v, line);
-			break;
-		}
-		default:
-			return;
-		}
-	}
-}
-
-static void simpleexp(ktap_lexstate *ls, ktap_expdesc *v)
-{
-	/* simpleexp -> NUMBER | STRING | NIL | TRUE | FALSE | ... |
-		constructor | FUNCTION body | suffixedexp */
-	switch (ls->t.token) {
-	case TK_NUMBER: {
-		init_exp(v, VKNUM, 0);
-		v->u.nval = ls->t.seminfo.r;
-		break;
-	}
-	case TK_STRING: {
-		codestring(ls, v, ls->t.seminfo.ts);
-		break;
-	}
-	case TK_NIL: {
-		init_exp(v, VNIL, 0);
-		break;
-	}
-	case TK_TRUE: {
-		init_exp(v, VTRUE, 0);
-		break;
-	}
-	case TK_FALSE: {
-		init_exp(v, VFALSE, 0);
-		break;
-	}
-	case TK_DOTS: {  /* vararg */
-		ktap_funcstate *fs = ls->fs;
-		check_condition(ls, fs->f->is_vararg,
-                      "cannot use " KTAP_QL("...") " outside a vararg function");
-		init_exp(v, VVARARG, codegen_codeABC(fs, OP_VARARG, 0, 1, 0));
-		break;
-	}
-	case '{': {  /* constructor */
-		constructor(ls, v);
-		return;
-	}
-	case TK_FUNCTION: {
-		lex_next(ls);
-		body(ls, v, 0, ls->linenumber);
-		return;
-	}
-	case TK_ARGEVENT:
-		init_exp(v, VEVENT, 0);
-		break;
-
-	case TK_ARGNAME:
-		init_exp(v, VEVENTNAME, 0);
-		break;
-	case TK_ARG1:
-	case TK_ARG2:
-	case TK_ARG3:
-	case TK_ARG4:
-	case TK_ARG5:
-	case TK_ARG6:
-	case TK_ARG7:
-	case TK_ARG8:
-	case TK_ARG9:
-		init_exp(v, VEVENTARG, ls->t.token - TK_ARG1 + 1);
-		break;
-	default: {
-		suffixedexp(ls, v);
-		return;
-	}
-	}
-	lex_next(ls);
-}
-
-static UnOpr getunopr(int op)
-{
-	switch (op) {
-	case TK_NOT: return OPR_NOT;
-	case '-': return OPR_MINUS;
-	case '#': return OPR_LEN;
-	default: return OPR_NOUNOPR;
-	}
-}
-
-static BinOpr getbinopr(int op)
-{
-	switch (op) {
-	case '+': return OPR_ADD;
-	case '-': return OPR_SUB;
-	case '*': return OPR_MUL;
-	case '/': return OPR_DIV;
-	case '%': return OPR_MOD;
-	case '^': return OPR_POW;
-	case TK_CONCAT: return OPR_CONCAT;
-	case TK_NE: return OPR_NE;
-	case TK_EQ: return OPR_EQ;
-	case '<': return OPR_LT;
-	case TK_LE: return OPR_LE;
-	case '>': return OPR_GT;
-	case TK_GE: return OPR_GE;
-	case TK_AND: return OPR_AND;
-	case TK_OR: return OPR_OR;
-	default: return OPR_NOBINOPR;
-	}
-}
-
-static const struct {
-	u8 left;  /* left priority for each binary operator */
-	u8 right; /* right priority */
-} priority[] = {  /* ORDER OPR */
-	{6, 6}, {6, 6}, {7, 7}, {7, 7}, {7, 7},  /* `+' `-' `*' `/' `%' */
-	{10, 9}, {5, 4},                 /* ^, .. (right associative) */
-	{3, 3}, {3, 3}, {3, 3},          /* ==, <, <= */
-	{3, 3}, {3, 3}, {3, 3},          /* !=, >, >= */
-	{2, 2}, {1, 1}                   /* and, or */
-};
-
-#define UNARY_PRIORITY	8  /* priority for unary operators */
-
-#define leavelevel(ls)	(ls->nCcalls--)
-
-/*
- * subexpr -> (simpleexp | unop subexpr) { binop subexpr }
- * where `binop' is any binary operator with a priority higher than `limit'
- */
-static BinOpr subexpr(ktap_lexstate *ls, ktap_expdesc *v, int limit)
-{
-	BinOpr op;
-	UnOpr uop;
-
-	enterlevel(ls);
-	uop = getunopr(ls->t.token);
-	if (uop != OPR_NOUNOPR) {
-		int line = ls->linenumber;
-
-		lex_next(ls);
-		subexpr(ls, v, UNARY_PRIORITY);
-		codegen_prefix(ls->fs, uop, v, line);
-	} else
-		simpleexp(ls, v);
-
-	/* expand while operators have priorities higher than `limit' */
-	op = getbinopr(ls->t.token);
-	while (op != OPR_NOBINOPR && priority[op].left > limit) {
-		ktap_expdesc v2;
-		BinOpr nextop;
-		int line = ls->linenumber;
-
-		lex_next(ls);
-		codegen_infix(ls->fs, op, v);
-		/* read sub-expression with higher priority */
-		nextop = subexpr(ls, &v2, priority[op].right);
-		codegen_posfix(ls->fs, op, v, &v2, line);
-		op = nextop;
-	}
-	leavelevel(ls);
-	return op;  /* return first untreated operator */
-}
-
-static void expr(ktap_lexstate *ls, ktap_expdesc *v)
-{
-	subexpr(ls, v, 0);
-}
-
-/* }==================================================================== */
-
-/*
- * {======================================================================
- * Rules for Statements
- * =======================================================================
- */
-static void block(ktap_lexstate *ls)
-{
-	/* block -> statlist */
-	ktap_funcstate *fs = ls->fs;
-	ktap_blockcnt bl;
-
-	enterblock(fs, &bl, 0);
-	statlist(ls);
-	leaveblock(fs);
-}
-
-/*
- * structure to chain all variables in the left-hand side of an
- * assignment
- */
-struct LHS_assign {
-	struct LHS_assign *prev;
-	ktap_expdesc v;  /* variable (global, local, upvalue, or indexed) */
-};
-
-/*
- * check whether, in an assignment to an upvalue/local variable, the
- * upvalue/local variable is begin used in a previous assignment to a
- * table. If so, save original upvalue/local value in a safe place and
- * use this safe copy in the previous assignment.
- */
-static void check_conflict(ktap_lexstate *ls, struct LHS_assign *lh, ktap_expdesc *v)
-{
-	ktap_funcstate *fs = ls->fs;
-	int extra = fs->freereg;  /* eventual position to save local variable */
-	int conflict = 0;
-
-	for (; lh; lh = lh->prev) {  /* check all previous assignments */
-		if (lh->v.k == VINDEXED) {  /* assigning to a table? */
-			/* table is the upvalue/local being assigned now? */
-			if (lh->v.u.ind.vt == v->k && lh->v.u.ind.t == v->u.info) {
-				conflict = 1;
-				lh->v.u.ind.vt = VLOCAL;
-				lh->v.u.ind.t = extra;  /* previous assignment will use safe copy */
-			}
-			/* index is the local being assigned? (index cannot be upvalue) */
-			if (v->k == VLOCAL && lh->v.u.ind.idx == v->u.info) {
-				conflict = 1;
-				lh->v.u.ind.idx = extra;  /* previous assignment will use safe copy */
-			}
-		}
-	}
-	if (conflict) {
-		/* copy upvalue/local value to a temporary (in position 'extra') */
-		OpCode op = (v->k == VLOCAL) ? OP_MOVE : OP_GETUPVAL;
-		codegen_codeABC(fs, op, extra, v->u.info, 0);
-		codegen_reserveregs(fs, 1);
-	}
-}
-
-static void assignment(ktap_lexstate *ls, struct LHS_assign *lh, int nvars)
-{
-	ktap_expdesc e;
-
-	check_condition(ls, vkisvar(lh->v.k), "syntax error");
-	if (testnext(ls, ',')) {  /* assignment -> ',' suffixedexp assignment */
-		struct LHS_assign nv;
-
-		nv.prev = lh;
-		suffixedexp(ls, &nv.v);
-		if (nv.v.k != VINDEXED)
-			check_conflict(ls, lh, &nv.v);
-		checklimit(ls->fs, nvars + ls->nCcalls, KTAP_MAXCCALLS,
-				"C levels");
-		assignment(ls, &nv, nvars+1);
-	} else if (testnext(ls, '=')) {  /* assignment -> '=' explist */
-		int nexps;
-
-		nexps = explist(ls, &e);
-		if (nexps != nvars) {
-			adjust_assign(ls, nvars, nexps, &e);
-			/* remove extra values */
-			if (nexps > nvars)
-				ls->fs->freereg -= nexps - nvars;
-		} else {
-			/* close last expression */
-			codegen_setoneret(ls->fs, &e);
-			codegen_storevar(ls->fs, &lh->v, &e);
-			return;  /* avoid default */
-		}
-	} else if (testnext(ls, TK_INCR)) { /* assignment -> '+=' explist */
-		int nexps;
-
-		nexps = explist(ls, &e);
-		if (nexps != nvars) {
-			lex_syntaxerror(ls, "don't allow multi-assign for +=");
-		} else {
-			/* close last expression */
-			codegen_setoneret(ls->fs, &e);
-			codegen_storeincr(ls->fs, &lh->v, &e);
-			return;  /* avoid default */
-		}
-	}
-
-	init_exp(&e, VNONRELOC, ls->fs->freereg-1);  /* default assignment */
-	codegen_storevar(ls->fs, &lh->v, &e);
-}
-
-static int cond(ktap_lexstate *ls)
-{
-	/* cond -> exp */
-	ktap_expdesc v;
-	expr(ls, &v);  /* read condition */
-	if (v.k == VNIL)
-		v.k = VFALSE;  /* `falses' are all equal here */
-	codegen_goiftrue(ls->fs, &v);
-	return v.f;
-}
-
-static void gotostat(ktap_lexstate *ls, int pc)
-{
-	int line = ls->linenumber;
-	ktap_string *label;
-	int g;
-
-	if (testnext(ls, TK_GOTO))
-		label = str_checkname(ls);
-	else {
-		lex_next(ls);  /* skip break */
-		label = ktapc_ts_new("break");
-	}
-	g = newlabelentry(ls, &ls->dyd->gt, label, line, pc);
-	findlabel(ls, g);  /* close it if label already defined */
-}
-
-/* check for repeated labels on the same block */
-static void checkrepeated(ktap_funcstate *fs, ktap_labellist *ll, ktap_string *label)
-{
-	int i;
-	for (i = fs->bl->firstlabel; i < ll->n; i++) {
-		if (ktapc_ts_eqstr(label, ll->arr[i].name)) {
-			const char *msg = ktapc_sprintf(
-				"label " KTAP_QS " already defined on line %d",
-				getstr(label), ll->arr[i].line);
-			semerror(fs->ls, msg);
-		}
-	}
-}
-
-/* skip no-op statements */
-static void skipnoopstat(ktap_lexstate *ls)
-{
-	while (ls->t.token == ';' || ls->t.token == TK_DBCOLON)
-		statement(ls);
-}
-
-static void labelstat (ktap_lexstate *ls, ktap_string *label, int line)
-{
-	/* label -> '::' NAME '::' */
-	ktap_funcstate *fs = ls->fs;
-	ktap_labellist *ll = &ls->dyd->label;
-	int l;  /* index of new label being created */
-
-	checkrepeated(fs, ll, label);  /* check for repeated labels */
-	checknext(ls, TK_DBCOLON);  /* skip double colon */
-	/* create new entry for this label */
-	l = newlabelentry(ls, ll, label, line, fs->pc);
-	skipnoopstat(ls);  /* skip other no-op statements */
-	if (block_follow(ls, 0)) {  /* label is last no-op statement in the block? */
-		/* assume that locals are already out of scope */
-		ll->arr[l].nactvar = fs->bl->nactvar;
-	}
-	findgotos(ls, &ll->arr[l]);
-}
-
-static void whilestat(ktap_lexstate *ls, int line)
-{
-	/* whilestat -> WHILE cond DO block END */
-	ktap_funcstate *fs = ls->fs;
-	int whileinit;
-	int condexit;
-	ktap_blockcnt bl;
-
-	lex_next(ls);  /* skip WHILE */
-	whileinit = codegen_getlabel(fs);
-	checknext(ls, '(');
-	condexit = cond(ls);
-	checknext(ls, ')');
-
-	enterblock(fs, &bl, 1);
-	//checknext(ls, TK_DO);
-	checknext(ls, '{');
-	block(ls);
-	codegen_jumpto(fs, whileinit);
-	checknext(ls, '}');
-	//check_match(ls, TK_END, TK_WHILE, line);
-	leaveblock(fs);
-	codegen_patchtohere(fs, condexit);  /* false conditions finish the loop */
-}
-
-static void repeatstat(ktap_lexstate *ls, int line)
-{
-	/* repeatstat -> REPEAT block UNTIL cond */
-	int condexit;
-	ktap_funcstate *fs = ls->fs;
-	int repeat_init = codegen_getlabel(fs);
-	ktap_blockcnt bl1, bl2;
-
-	enterblock(fs, &bl1, 1);  /* loop block */
-	enterblock(fs, &bl2, 0);  /* scope block */
-	lex_next(ls);  /* skip REPEAT */
-	statlist(ls);
-	check_match(ls, TK_UNTIL, TK_REPEAT, line);
-	condexit = cond(ls);  /* read condition (inside scope block) */
-	if (bl2.upval)  /* upvalues? */
-		codegen_patchclose(fs, condexit, bl2.nactvar);
-	leaveblock(fs);  /* finish scope */
-	codegen_patchlist(fs, condexit, repeat_init);  /* close the loop */
-	leaveblock(fs);  /* finish loop */
-}
-
-static int exp1(ktap_lexstate *ls)
-{
-	ktap_expdesc e;
-	int reg;
-
-	expr(ls, &e);
-	codegen_exp2nextreg(ls->fs, &e);
-	ktap_assert(e.k == VNONRELOC);
-	reg = e.u.info;
-	return reg;
-}
-
-static void forbody(ktap_lexstate *ls, int base, int line, int nvars, int isnum)
-{
-	/* forbody -> DO block */
-	ktap_blockcnt bl;
-	ktap_funcstate *fs = ls->fs;
-	int prep, endfor;
-
-	checknext(ls, ')');
-
-	adjustlocalvars(ls, 3);  /* control variables */
-	//checknext(ls, TK_DO);
-	checknext(ls, '{');
-	prep = isnum ? codegen_codeAsBx(fs, OP_FORPREP, base, NO_JUMP) : codegen_jump(fs);
-	enterblock(fs, &bl, 0);  /* scope for declared variables */
-	adjustlocalvars(ls, nvars);
-	codegen_reserveregs(fs, nvars);
-	block(ls);
-	leaveblock(fs);  /* end of scope for declared variables */
-	codegen_patchtohere(fs, prep);
-	if (isnum)  /* numeric for? */
-		endfor = codegen_codeAsBx(fs, OP_FORLOOP, base, NO_JUMP);
-	else {  /* generic for */
-		codegen_codeABC(fs, OP_TFORCALL, base, 0, nvars);
-		codegen_fixline(fs, line);
-		endfor = codegen_codeAsBx(fs, OP_TFORLOOP, base + 2, NO_JUMP);
-	}
-	codegen_patchlist(fs, endfor, prep + 1);
-	codegen_fixline(fs, line);
-}
-
-static void fornum(ktap_lexstate *ls, ktap_string *varname, int line)
-{
-	/* fornum -> NAME = exp1,exp1[,exp1] forbody */
-	ktap_funcstate *fs = ls->fs;
-	int base = fs->freereg;
-
-	new_localvarliteral(ls, "(for index)");
-	new_localvarliteral(ls, "(for limit)");
-	new_localvarliteral(ls, "(for step)");
-	new_localvar(ls, varname);
-	checknext(ls, '=');
-	exp1(ls);  /* initial value */
-	checknext(ls, ',');
-	exp1(ls);  /* limit */
-	if (testnext(ls, ','))
-		exp1(ls);  /* optional step */
-	else {  /* default step = 1 */
-		codegen_codek(fs, fs->freereg, codegen_numberK(fs, 1));
-		codegen_reserveregs(fs, 1);
-	}
-	forbody(ls, base, line, 1, 1);
-}
-
-static void forlist(ktap_lexstate *ls, ktap_string *indexname)
-{
-	/* forlist -> NAME {,NAME} IN explist forbody */
-	ktap_funcstate *fs = ls->fs;
-	ktap_expdesc e;
-	int nvars = 4;  /* gen, state, control, plus at least one declared var */
-	int line;
-	int base = fs->freereg;
-
-	/* create control variables */
-	new_localvarliteral(ls, "(for generator)");
-	new_localvarliteral(ls, "(for state)");
-	new_localvarliteral(ls, "(for control)");
-	/* create declared variables */
-	new_localvar(ls, indexname);
-	while (testnext(ls, ',')) {
-		new_localvar(ls, str_checkname(ls));
-		nvars++;
-	}
-	checknext(ls, TK_IN);
-	line = ls->linenumber;
-	adjust_assign(ls, 3, explist(ls, &e), &e);
-	codegen_checkstack(fs, 3);  /* extra space to call generator */
-	forbody(ls, base, line, nvars - 3, 0);
-}
-
-static void forstat(ktap_lexstate *ls, int line)
-{
-	/* forstat -> FOR (fornum | forlist) END */
-	ktap_funcstate *fs = ls->fs;
-	ktap_string *varname;
-	ktap_blockcnt bl;
-
-	enterblock(fs, &bl, 1);  /* scope for loop and control variables */
-	lex_next(ls);  /* skip `for' */
-
-	checknext(ls, '(');
-	varname = str_checkname(ls);  /* first variable name */
-	switch (ls->t.token) {
-	case '=':
-		fornum(ls, varname, line);
-		break;
-	case ',': case TK_IN:
-		forlist(ls, varname);
-		break;
-	default: 
-		lex_syntaxerror(ls, KTAP_QL("=") " or " KTAP_QL("in") " expected");
-	}
-	//check_match(ls, TK_END, TK_FOR, line);
-	checknext(ls, '}');
-	leaveblock(fs);  /* loop scope (`break' jumps to this point) */
-}
-
-static void test_then_block(ktap_lexstate *ls, int *escapelist)
-{
-	/* test_then_block -> [IF | ELSEIF] cond THEN block */
-	ktap_blockcnt bl;
-	ktap_funcstate *fs = ls->fs;
-	ktap_expdesc v;
-	int jf;  /* instruction to skip 'then' code (if condition is false) */
-
-	lex_next(ls);  /* skip IF or ELSEIF */
-	checknext(ls, '(');
-	expr(ls, &v);  /* read condition */
-	checknext(ls, ')');
-	//checknext(ls, TK_THEN);
-	checknext(ls, '{');
-	if (ls->t.token == TK_GOTO || ls->t.token == TK_BREAK) {
-		codegen_goiffalse(ls->fs, &v);  /* will jump to label if condition is true */
-		enterblock(fs, &bl, 0);  /* must enter block before 'goto' */
-		gotostat(ls, v.t);  /* handle goto/break */
-		skipnoopstat(ls);  /* skip other no-op statements */
-		if (block_follow(ls, 0)) {  /* 'goto' is the entire block? */
-			leaveblock(fs);
-			checknext(ls, '}');
-			return;  /* and that is it */
-		} else  /* must skip over 'then' part if condition is false */
-			jf = codegen_jump(fs);
-	} else {  /* regular case (not goto/break) */
-		codegen_goiftrue(ls->fs, &v);  /* skip over block if condition is false */
-		enterblock(fs, &bl, 0);
-		jf = v.f;
-	}
-	statlist(ls);  /* `then' part */
-	checknext(ls, '}');
-	leaveblock(fs);
-	if (ls->t.token == TK_ELSE || ls->t.token == TK_ELSEIF)  /* followed by 'else'/'elseif'? */
-		codegen_concat(fs, escapelist, codegen_jump(fs));  /* must jump over it */
-	codegen_patchtohere(fs, jf);
-}
-
-static void ifstat(ktap_lexstate *ls, int line)
-{
-	/* ifstat -> IF cond THEN block {ELSEIF cond THEN block} [ELSE block] END */
-	ktap_funcstate *fs = ls->fs;
-	int escapelist = NO_JUMP;  /* exit list for finished parts */
-
-	test_then_block(ls, &escapelist);  /* IF cond THEN block */
-	while (ls->t.token == TK_ELSEIF)
-		test_then_block(ls, &escapelist);  /* ELSEIF cond THEN block */
-	if (testnext(ls, TK_ELSE)) {
-		checknext(ls, '{');
-		block(ls);  /* `else' part */
-		checknext(ls, '}');
-	}
-	//check_match(ls, TK_END, TK_IF, line);
-	codegen_patchtohere(fs, escapelist);  /* patch escape list to 'if' end */
-}
-
-static void localfunc(ktap_lexstate *ls)
-{
-	ktap_expdesc b;
-	ktap_funcstate *fs = ls->fs;
-
-	new_localvar(ls, str_checkname(ls));  /* new local variable */
-	adjustlocalvars(ls, 1);  /* enter its scope */
-	body(ls, &b, 0, ls->linenumber);  /* function created in next register */
-	/* debug information will only see the variable after this point! */
-	getlocvar(fs, b.u.info)->startpc = fs->pc;
-}
-
-static void localstat(ktap_lexstate *ls)
-{
-	/* stat -> LOCAL NAME {`,' NAME} [`=' explist] */
-	int nvars = 0;
-	int nexps;
-	ktap_expdesc e;
-
-	do {
-		new_localvar(ls, str_checkname(ls));
-		nvars++;
-	} while (testnext(ls, ','));
-	if (testnext(ls, '='))
-		nexps = explist(ls, &e);
-	else {
-		e.k = VVOID;
-		nexps = 0;
-	}
-	adjust_assign(ls, nvars, nexps, &e);
-	adjustlocalvars(ls, nvars);
-}
-
-static int funcname(ktap_lexstate *ls, ktap_expdesc *v)
-{
-	/* funcname -> NAME {fieldsel} [`:' NAME] */
-	int ismethod = 0;
-
-	singlevar(ls, v);
-	while (ls->t.token == '.')
-		fieldsel(ls, v);
-		if (ls->t.token == ':') {
-			ismethod = 1;
-			fieldsel(ls, v);
-	}
-	return ismethod;
-}
-
-static void funcstat(ktap_lexstate *ls, int line)
-{
-	/* funcstat -> FUNCTION funcname body */
-	int ismethod;
-	ktap_expdesc v, b;
-
-	lex_next(ls);  /* skip FUNCTION */
-	ismethod = funcname(ls, &v);
-	body(ls, &b, ismethod, line);
-	codegen_storevar(ls->fs, &v, &b);
-	codegen_fixline(ls->fs, line);  /* definition `happens' in the first line */
-}
-
-static void exprstat(ktap_lexstate *ls)
-{
-	/* stat -> func | assignment */
-	ktap_funcstate *fs = ls->fs;
-	struct LHS_assign v;
-
-	suffixedexp(ls, &v.v);
-	/* stat -> assignment ? */
-	if (ls->t.token == '=' || ls->t.token == ',' ||
-	    ls->t.token == TK_INCR) {
-		v.prev = NULL;
-		assignment(ls, &v, 1);
-	} else {  /* stat -> func */
-		check_condition(ls, v.v.k == VCALL, "syntax error");
-		SETARG_C(getcode(fs, &v.v), 1);  /* call statement uses no results */
-	}
-}
-
-static void retstat(ktap_lexstate *ls)
-{
-	/* stat -> RETURN [explist] [';'] */
-	ktap_funcstate *fs = ls->fs;
-	ktap_expdesc e;
-	int first, nret;  /* registers with returned values */
-
-	if (block_follow(ls, 1) || ls->t.token == ';')
-		first = nret = 0;  /* return no values */
-	else {
-		nret = explist(ls, &e);  /* optional return values */
-		if (hasmultret(e.k)) {
-			codegen_setmultret(fs, &e);
-			if (e.k == VCALL && nret == 1) {  /* tail call? */
-				SET_OPCODE(getcode(fs,&e), OP_TAILCALL);
-				ktap_assert(GETARG_A(getcode(fs,&e)) == fs->nactvar);
-			}
-			first = fs->nactvar;
-			nret = KTAP_MULTRET;  /* return all values */
-		} else {
-			if (nret == 1)  /* only one single value? */
-				first = codegen_exp2anyreg(fs, &e);
-			else {
-				codegen_exp2nextreg(fs, &e);  /* values must go to the `stack' */
-				first = fs->nactvar;  /* return all `active' values */
-				ktap_assert(nret == fs->freereg - first);
-			}
-		}
-	}
-	codegen_ret(fs, first, nret);
-	testnext(ls, ';');  /* skip optional semicolon */
-}
-
-static void tracestat(ktap_lexstate *ls)
-{
-	ktap_expdesc v0, key, args;
-	ktap_expdesc *v = &v0;
-	ktap_string *kdebug_str = ktapc_ts_new("kdebug");
-	ktap_string *probe_str = ktapc_ts_new("probe_by_id");
-	ktap_string *probe_end_str = ktapc_ts_new("probe_end");
-	ktap_funcstate *fs = ls->fs;
-	int token = ls->t.token;
-	int line = ls->linenumber;
-	int base, nparams;
-
-	if (token == TK_TRACE)
-		lex_read_string_until(ls, '{');
-	else
-		lex_next(ls);  /* skip "trace_end" keyword */
-
-	/* kdebug */
-	singlevaraux(fs, ls->envn, v, 1);  /* get environment variable */
-	codestring(ls, &key, kdebug_str);  /* key is variable name */
-	codegen_indexed(fs, v, &key);  /* env[varname] */
-
-	/* fieldsel: kdebug.probe */
-	codegen_exp2anyregup(fs, v);
-	if (token == TK_TRACE)
-		codestring(ls, &key, probe_str);
-	else if (token == TK_TRACE_END)
-		codestring(ls, &key, probe_end_str);
-	codegen_indexed(fs, v, &key);
-
-	/* funcargs*/
-	codegen_exp2nextreg(fs, v);
-
-	if (token == TK_TRACE) {
-		/* argument: EVENTDEF string */
-		check(ls, TK_STRING);
-		enterlevel(ls);
-		ktap_string *ts = ktapc_parse_eventdef(ls->t.seminfo.ts);
-		check_condition(ls, ts != NULL, "Cannot parse eventdef");
-		codestring(ls, &args, ts);
-		lex_next(ls);  /* skip EVENTDEF string */
-		leavelevel(ls);
-
-		codegen_exp2nextreg(fs, &args); /* for next argument */
-	}
-
-	/* argument: callback function */
-	enterlevel(ls);
-	func_body_no_args(ls, &args, ls->linenumber);
-	leavelevel(ls);
-
-	codegen_setmultret(fs, &args);
-
-	base = v->u.info;  /* base register for call */
-	if (hasmultret(args.k))
-		nparams = KTAP_MULTRET;  /* open call */
-	else {
-		codegen_exp2nextreg(fs, &args);  /* close last argument */
-		nparams = fs->freereg - (base+1);
-	}
-	init_exp(v, VCALL, codegen_codeABC(fs, OP_CALL, base, nparams+1, 2));
-	codegen_fixline(fs, line);
-	fs->freereg = base+1;
-
-	check_condition(ls, v->k == VCALL, "syntax error");
-	SETARG_C(getcode(fs, v), 1);  /* call statement uses no results */
-}
-
-static void timerstat(ktap_lexstate *ls)
-{
-	ktap_expdesc v0, key, args;
-	ktap_expdesc *v = &v0;
-	ktap_funcstate *fs = ls->fs;
-	ktap_string *token_str = ls->t.seminfo.ts;
-	ktap_string *interval_str;
-	int line = ls->linenumber;
-	int base, nparams;
-
-	lex_next(ls);  /* skip profile/tick keyword */
-	check(ls, '-');
-
-	lex_read_string_until(ls, '{');
-	interval_str = ls->t.seminfo.ts;
-
-	//printf("timerstat str: %s\n", getstr(interval_str));
-	//exit(0);
-
-	/* timer */
-	singlevaraux(fs, ls->envn, v, 1);  /* get environment variable */
-	codestring(ls, &key, ktapc_ts_new("timer"));  /* key is variable name */
-	codegen_indexed(fs, v, &key);  /* env[varname] */
-
-	/* fieldsel: timer.profile, timer.tick */
-	codegen_exp2anyregup(fs, v);
-	codestring(ls, &key, token_str);
-	codegen_indexed(fs, v, &key);
-
-	/* funcargs*/
-	codegen_exp2nextreg(fs, v);
-
-	/* argument: interval string */
-	check(ls, TK_STRING);
-	enterlevel(ls);
-	codestring(ls, &args, interval_str);
-	lex_next(ls);  /* skip interval string */
-	leavelevel(ls);
-
-	codegen_exp2nextreg(fs, &args); /* for next argument */
-
-	/* argument: callback function */
-	enterlevel(ls);
-	func_body_no_args(ls, &args, ls->linenumber);
-	leavelevel(ls);
-
-	codegen_setmultret(fs, &args);
-
-	base = v->u.info;  /* base register for call */
-	if (hasmultret(args.k))
-		nparams = KTAP_MULTRET;  /* open call */
-	else {
-		codegen_exp2nextreg(fs, &args);  /* close last argument */
-		nparams = fs->freereg - (base+1);
-	}
-	init_exp(v, VCALL, codegen_codeABC(fs, OP_CALL, base, nparams+1, 2));
-	codegen_fixline(fs, line);
-	fs->freereg = base+1;
-
-	check_condition(ls, v->k == VCALL, "syntax error");
-	SETARG_C(getcode(fs, v), 1);  /* call statement uses no results */
-}
-
-static void statement(ktap_lexstate *ls)
-{
-	int line = ls->linenumber;  /* may be needed for error messages */
-
-	enterlevel(ls);
-	switch (ls->t.token) {
-	case ';': {  /* stat -> ';' (empty statement) */
-		lex_next(ls);  /* skip ';' */
-		break;
-	}
-	case TK_IF: {  /* stat -> ifstat */
-		ifstat(ls, line);
-		break;
-	}
-	case TK_WHILE: {  /* stat -> whilestat */
-		whilestat(ls, line);
-		break;
-	}
-	case TK_DO: {  /* stat -> DO block END */
-		lex_next(ls);  /* skip DO */
-		block(ls);
-		check_match(ls, TK_END, TK_DO, line);
-		break;
-	}
-	case TK_FOR: {  /* stat -> forstat */
-		forstat(ls, line);
-		break;
-	}
-	case TK_REPEAT: {  /* stat -> repeatstat */
-		repeatstat(ls, line);
-		break;
-	}
-	case TK_FUNCTION: {  /* stat -> funcstat */
-		funcstat(ls, line);
-		break;
-	}
-	case TK_LOCAL: {  /* stat -> localstat */
-		lex_next(ls);  /* skip LOCAL */
-		if (testnext(ls, TK_FUNCTION))  /* local function? */
-			localfunc(ls);
-		else
-			localstat(ls);
-		break;
-	}
-	case TK_DBCOLON: {  /* stat -> label */
-		lex_next(ls);  /* skip double colon */
-		labelstat(ls, str_checkname(ls), line);
-		break;
-	}
-	case TK_RETURN: {  /* stat -> retstat */
-		lex_next(ls);  /* skip RETURN */
-		retstat(ls);
-		break;
-	}
-	case TK_BREAK:   /* stat -> breakstat */
-	case TK_GOTO: {  /* stat -> 'goto' NAME */
-		gotostat(ls, codegen_jump(ls->fs));
-		break;
-	}
-
-	case TK_TRACE:
-	case TK_TRACE_END:
-		tracestat(ls);
-		break;
-	case TK_PROFILE:
-	case TK_TICK:
-		timerstat(ls);
-		break;
-	default: {  /* stat -> func | assignment */
-		exprstat(ls);
-		break;
-	}
-	}
-	//ktap_assert(ls->fs->f->maxstacksize >= ls->fs->freereg &&
-	//	ls->fs->freereg >= ls->fs->nactvar);
-	ls->fs->freereg = ls->fs->nactvar;  /* free registers */
-	leavelevel(ls);
-}
-/* }====================================================================== */
-
-/*
- * compiles the main function, which is a regular vararg function with an upvalue
- */
-static void mainfunc(ktap_lexstate *ls, ktap_funcstate *fs)
-{
-	ktap_blockcnt bl;
-	ktap_expdesc v;
-
-	open_func(ls, fs, &bl);
-	fs->f->is_vararg = 1;  /* main function is always vararg */
-	init_exp(&v, VLOCAL, 0);  /* create and... */
-	newupvalue(fs, ls->envn, &v);  /* ...set environment upvalue */
-	lex_next(ls);  /* read first token */
-	statlist(ls);  /* parse main body */
-	check(ls, TK_EOS);
-	close_func(ls);
-}
-
-ktap_closure *ktapc_parser(char *ptr, const char *name)
-{
-	ktap_lexstate lexstate;
-	ktap_funcstate funcstate;
-	ktap_dyndata dyd;
-	ktap_mbuffer buff;
-	int firstchar = *ptr++;
-	ktap_closure *cl = ktapc_newlclosure(1);  /* create main closure */
-
-	memset(&lexstate, 0, sizeof(ktap_lexstate));
-	memset(&funcstate, 0, sizeof(ktap_funcstate));
-	funcstate.f = cl->l.p = ktapc_newproto();
-	funcstate.f->source = ktapc_ts_new(name);  /* create and anchor ktap_string */
-
-	lex_init();
-
-	mbuff_init(&buff);
-	memset(&dyd, 0, sizeof(ktap_dyndata));
-	lexstate.buff = &buff;
-	lexstate.dyd = &dyd;
-	lex_setinput(&lexstate, ptr, funcstate.f->source, firstchar);
-
-	mainfunc(&lexstate, &funcstate);
-
-	ktap_assert(!funcstate.prev && funcstate.nups == 1 && !lexstate.fs);
-
-	/* all scopes should be correctly finished */
-	ktap_assert(dyd.actvar.n == 0 && dyd.gt.n == 0 && dyd.label.n == 0);
-	return cl;
-}
-
diff --git a/drivers/staging/ktap/userspace/util.c b/drivers/staging/ktap/userspace/util.c
deleted file mode 100644
index 8124de995be7..000000000000
--- a/drivers/staging/ktap/userspace/util.c
+++ /dev/null
@@ -1,346 +0,0 @@
-/*
- * util.c
- *
- * This file is part of ktap by Jovi Zhangwei.
- *
- * Copyright (C) 2012-2013 Jovi Zhangwei <jovi.zhangwei@gmail.com>.
- *
- * Copyright (C) 1994-2013 Lua.org, PUC-Rio.
- *  - The part of code in this file is copied from lua initially.
- *  - lua's MIT license is compatible with GPL.
- *
- * ktap is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * ktap is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#include "../include/ktap_types.h"
-#include "ktapc.h"
-
-/*
- * converts an integer to a "floating point byte", represented as
- * (eeeeexxx), where the real value is (1xxx) * 2^(eeeee - 1) if
- * eeeee != 0 and (xxx) otherwise.
- */
-int ktapc_int2fb(unsigned int x)
-{
-	int e = 0;  /* exponent */
-
-	if (x < 8)
-		return x;
-	while (x >= 0x10) {
-		x = (x+1) >> 1;
-		e++;
-	}
-	return ((e+1) << 3) | ((int)x - 8);
-}
-
-/* converts back */
-int ktapc_fb2int(int x)
-{
-	int e = (x >> 3) & 0x1f;
-
-	if (e == 0)
-		return x;
-	else
-		return ((x & 7) + 8) << (e - 1);
-}
-
-int ktapc_ceillog2(unsigned int x)
-{
-	static const u8 log_2[256] = {
-	0,1,2,2,3,3,3,3,4,4,4,4,4,4,4,4,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,
-	6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,6,
-	7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-	7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,7,
-	8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
-	8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
-	8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,
-	8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8,8
-	};
-	int l = 0;
-
-	x--;
-	while (x >= 256) {
-		l += 8;
-		x >>= 8;
-	}
-	return l + log_2[x];
-}
-
-ktap_number ktapc_arith(int op, ktap_number v1, ktap_number v2)
-{
-	switch (op) {
-	case KTAP_OPADD: return NUMADD(v1, v2);
-	case KTAP_OPSUB: return NUMSUB(v1, v2);
-	case KTAP_OPMUL: return NUMMUL(v1, v2);
-	case KTAP_OPDIV: return NUMDIV(v1, v2);
-	case KTAP_OPMOD: return NUMMOD(v1, v2);
-	//case KTAP_OPPOW: return NUMPOW(v1, v2);
-	case KTAP_OPUNM: return NUMUNM(v1);
-	default: ktap_assert(0); return 0;
-	}
-}
-
-int ktapc_hexavalue(int c)
-{
-	if (isdigit(c))
-		return c - '0';
-	else
-		return tolower(c) - 'a' + 10;
-}
-
-static int isneg(const char **s)
-{
-	if (**s == '-') {
-		(*s)++;
-		return 1;
-	} else if (**s == '+')
-		(*s)++;
-
-	return 0;
-}
-
-static ktap_number readhexa(const char **s, ktap_number r, int *count)
-{
-	for (; isxdigit((unsigned char)(**s)); (*s)++) {  /* read integer part */
-		r = (r * 16.0) + (ktap_number)(ktapc_hexavalue((unsigned char)(**s)));
-		(*count)++;
-	}
-
-	return r;
-}
-
-/*
- * convert an hexadecimal numeric string to a number, following
- * C99 specification for 'strtod'
- */
-static ktap_number strx2number(const char *s, char **endptr)
-{
-	ktap_number r = 0.0;
-	int e = 0, i = 0;
-	int neg = 0;  /* 1 if number is negative */
-
-	*endptr = (char *)s;  /* nothing is valid yet */
-	while (isspace((unsigned char)(*s)))
-		s++;  /* skip initial spaces */
-
-	neg = isneg(&s);  /* check signal */
-	if (!(*s == '0' && (*(s + 1) == 'x' || *(s + 1) == 'X')))  /* check '0x' */
-		return 0.0;  /* invalid format (no '0x') */
-
-	s += 2;  /* skip '0x' */
-	r = readhexa(&s, r, &i);  /* read integer part */
-	if (*s == '.') {
-		s++;  /* skip dot */
-		r = readhexa(&s, r, &e);  /* read fractional part */
-	}
-
-	if (i == 0 && e == 0)
-		return 0.0;  /* invalid format (no digit) */
-	e *= -4;  /* each fractional digit divides value by 2^-4 */
-	*endptr = (char *)s;  /* valid up to here */
-
-	if (*s == 'p' || *s == 'P') {  /* exponent part? */
-		int exp1 = 0;
-		int neg1;
-
-		s++;  /* skip 'p' */
-		neg1 = isneg(&s);  /* signal */
-		if (!isdigit((unsigned char)(*s)))
-			goto ret;  /* must have at least one digit */
-		while (isdigit((unsigned char)(*s)))  /* read exponent */
-			exp1 = exp1 * 10 + *(s++) - '0';
-		if (neg1) exp1 = -exp1;
-			e += exp1;
-	}
-
-	*endptr = (char *)s;  /* valid up to here */
- ret:
-	if (neg)
-		r = -r;
-
-	return ldexp(r, e);
-}
-
-int ktapc_str2d(const char *s, size_t len, ktap_number *result)
-{
-	char *endptr;
-
-	if (strpbrk(s, "nN"))  /* reject 'inf' and 'nan' */
-		return 0;
-	else if (strpbrk(s, "xX"))  /* hexa? */
-		*result = strx2number(s, &endptr);
-	else
-		*result = strtod(s, &endptr);
-
-	if (endptr == s)
-		return 0;  /* nothing recognized */
-	while (isspace((unsigned char)(*endptr)))
-		endptr++;
-	return (endptr == s + len);  /* OK if no trailing characters */
-}
-
-/* number of chars of a literal string without the ending \0 */
-#define LL(x)	(sizeof(x)/sizeof(char) - 1)
-
-#define RETS	"..."
-#define PRE	"[string \""
-#define POS	"\"]"
-
-#define addstr(a,b,l)	( memcpy(a,b,(l) * sizeof(char)), a += (l) )
-
-void ktapc_chunkid(char *out, const char *source, size_t bufflen)
-{
-	size_t l = strlen(source);
-
-	if (*source == '=') {  /* 'literal' source */
-		if (l <= bufflen)  /* small enough? */
-			memcpy(out, source + 1, l * sizeof(char));
-		else {  /* truncate it */
-			addstr(out, source + 1, bufflen - 1);
-			*out = '\0';
-		}
-	} else if (*source == '@') {  /* file name */
-		if (l <= bufflen)  /* small enough? */
-			memcpy(out, source + 1, l * sizeof(char));
-		else {  /* add '...' before rest of name */
-			addstr(out, RETS, LL(RETS));
-			bufflen -= LL(RETS);
-			memcpy(out, source + 1 + l - bufflen, bufflen * sizeof(char));
-		}
-	} else {  /* string; format as [string "source"] */
-		const char *nl = strchr(source, '\n');  /* find first new line (if any) */
-		addstr(out, PRE, LL(PRE));  /* add prefix */
-		bufflen -= LL(PRE RETS POS) + 1;  /* save space for prefix+suffix+'\0' */
-		if (l < bufflen && nl == NULL) {  /* small one-line source? */
-			addstr(out, source, l);  /* keep it */
-		} else {
-			if (nl != NULL)
-				l = nl - source;  /* stop at first newline */
-			if (l > bufflen)
-				l = bufflen;
-			addstr(out, source, l);
-			addstr(out, RETS, LL(RETS));
-		}
-		memcpy(out, POS, (LL(POS) + 1) * sizeof(char));
-	}
-}
-
-
-/*
- * strglobmatch is copyed from perf(linux/tools/perf/util/string.c)
- */
-
-/* Character class matching */
-static bool __match_charclass(const char *pat, char c, const char **npat)
-{
-	bool complement = false, ret = true;
-
-	if (*pat == '!') {
-		complement = true;
-		pat++;
-	}
-	if (*pat++ == c)	/* First character is special */
-		goto end;
-
-	while (*pat && *pat != ']') {	/* Matching */
-		if (*pat == '-' && *(pat + 1) != ']') {	/* Range */
-			if (*(pat - 1) <= c && c <= *(pat + 1))
-				goto end;
-			if (*(pat - 1) > *(pat + 1))
-				goto error;
-			pat += 2;
-		} else if (*pat++ == c)
-			goto end;
-	}
-	if (!*pat)
-		goto error;
-	ret = false;
-
-end:
-	while (*pat && *pat != ']')	/* Searching closing */
-		pat++;
-	if (!*pat)
-		goto error;
-	*npat = pat + 1;
-	return complement ? !ret : ret;
-
-error:
-	return false;
-}
-
-/* Glob/lazy pattern matching */
-static bool __match_glob(const char *str, const char *pat, bool ignore_space)
-{
-	while (*str && *pat && *pat != '*') {
-		if (ignore_space) {
-			/* Ignore spaces for lazy matching */
-			if (isspace(*str)) {
-				str++;
-				continue;
-			}
-			if (isspace(*pat)) {
-				pat++;
-				continue;
-			}
-		}
-		if (*pat == '?') {	/* Matches any single character */
-			str++;
-			pat++;
-			continue;
-		} else if (*pat == '[')	/* Character classes/Ranges */
-			if (__match_charclass(pat + 1, *str, &pat)) {
-				str++;
-				continue;
-			} else
-				return false;
-		else if (*pat == '\\') /* Escaped char match as normal char */
-			pat++;
-		if (*str++ != *pat++)
-			return false;
-	}
-	/* Check wild card */
-	if (*pat == '*') {
-		while (*pat == '*')
-			pat++;
-		if (!*pat)	/* Tail wild card matches all */
-			return true;
-		while (*str)
-			if (__match_glob(str++, pat, ignore_space))
-				return true;
-	}
-	return !*str && !*pat;
-}
-
-/**
- * strglobmatch - glob expression pattern matching
- * @str: the target string to match
- * @pat: the pattern string to match
- *
- * This returns true if the @str matches @pat. @pat can includes wildcards
- * ('*','?') and character classes ([CHARS], complementation and ranges are
- * also supported). Also, this supports escape character ('\') to use special
- * characters as normal character.
- *
- * Note: if @pat syntax is broken, this always returns false.
- */
-bool strglobmatch(const char *str, const char *pat)
-{
-	return __match_glob(str, pat, false);
-}
-
-- 
cgit 


From 6384a4d0dcf9e28f5aa5e0c8a7e58e7b4df19e68 Mon Sep 17 00:00:00 2001
From: Sathya Perla <sathya.perla@emulex.com>
Date: Fri, 25 Oct 2013 10:40:16 +0530
Subject: be2net: add support for ndo_busy_poll

Includes:
- ndo_busy_poll implementation
- Locking between napi and busy_poll
- Fix rx_post_starvation (replenish rx-queues in out-of-mememory scenario)
  logic to accomodate busy_poll.

v2 changes:
[Eric D.'s comment] call alloc_pages() with GFP_ATOMIC even in ndo_busy_poll
context as it is not allowed to sleep.

Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be.h      | 122 ++++++++++++++++++++++++++++
 drivers/net/ethernet/emulex/benet/be_main.c |  83 +++++++++++++++----
 2 files changed, 187 insertions(+), 18 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index 1bce77fdbd99..b2765ebb0268 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -199,6 +199,19 @@ struct be_eq_obj {
 	u16 spurious_intr;
 	struct napi_struct napi;
 	struct be_adapter *adapter;
+
+#ifdef CONFIG_NET_RX_BUSY_POLL
+#define BE_EQ_IDLE		0
+#define BE_EQ_NAPI		1	/* napi owns this EQ */
+#define BE_EQ_POLL		2	/* poll owns this EQ */
+#define BE_EQ_LOCKED		(BE_EQ_NAPI | BE_EQ_POLL)
+#define BE_EQ_NAPI_YIELD	4	/* napi yielded this EQ */
+#define BE_EQ_POLL_YIELD	8	/* poll yielded this EQ */
+#define BE_EQ_YIELD		(BE_EQ_NAPI_YIELD | BE_EQ_POLL_YIELD)
+#define BE_EQ_USER_PEND		(BE_EQ_POLL | BE_EQ_POLL_YIELD)
+	unsigned int state;
+	spinlock_t lock;	/* lock to serialize napi and busy-poll */
+#endif  /* CONFIG_NET_RX_BUSY_POLL */
 } ____cacheline_aligned_in_smp;
 
 struct be_aic_obj {		/* Adaptive interrupt coalescing (AIC) info */
@@ -212,6 +225,11 @@ struct be_aic_obj {		/* Adaptive interrupt coalescing (AIC) info */
 	u64 tx_reqs_prev;	/* Used to calculate TX pps */
 };
 
+enum {
+	NAPI_POLLING,
+	BUSY_POLLING
+};
+
 struct be_mcc_obj {
 	struct be_queue_info q;
 	struct be_queue_info cq;
@@ -561,6 +579,10 @@ extern const struct ethtool_ops be_ethtool_ops;
 	for (i = 0, eqo = &adapter->eq_obj[i]; i < adapter->num_evt_qs; \
 		i++, eqo++)
 
+#define for_all_rx_queues_on_eq(adapter, eqo, rxo, i)			\
+	for (i = eqo->idx, rxo = &adapter->rx_obj[i]; i < adapter->num_rx_qs;\
+		 i += adapter->num_evt_qs, rxo += adapter->num_evt_qs)
+
 #define is_mcc_eqo(eqo)			(eqo->idx == 0)
 #define mcc_eqo(adapter)		(&adapter->eq_obj[0])
 
@@ -711,6 +733,106 @@ static inline int qnq_async_evt_rcvd(struct be_adapter *adapter)
 	return adapter->flags & BE_FLAGS_QNQ_ASYNC_EVT_RCVD;
 }
 
+#ifdef CONFIG_NET_RX_BUSY_POLL
+static inline bool be_lock_napi(struct be_eq_obj *eqo)
+{
+	bool status = true;
+
+	spin_lock(&eqo->lock); /* BH is already disabled */
+	if (eqo->state & BE_EQ_LOCKED) {
+		WARN_ON(eqo->state & BE_EQ_NAPI);
+		eqo->state |= BE_EQ_NAPI_YIELD;
+		status = false;
+	} else {
+		eqo->state = BE_EQ_NAPI;
+	}
+	spin_unlock(&eqo->lock);
+	return status;
+}
+
+static inline void be_unlock_napi(struct be_eq_obj *eqo)
+{
+	spin_lock(&eqo->lock); /* BH is already disabled */
+
+	WARN_ON(eqo->state & (BE_EQ_POLL | BE_EQ_NAPI_YIELD));
+	eqo->state = BE_EQ_IDLE;
+
+	spin_unlock(&eqo->lock);
+}
+
+static inline bool be_lock_busy_poll(struct be_eq_obj *eqo)
+{
+	bool status = true;
+
+	spin_lock_bh(&eqo->lock);
+	if (eqo->state & BE_EQ_LOCKED) {
+		eqo->state |= BE_EQ_POLL_YIELD;
+		status = false;
+	} else {
+		eqo->state |= BE_EQ_POLL;
+	}
+	spin_unlock_bh(&eqo->lock);
+	return status;
+}
+
+static inline void be_unlock_busy_poll(struct be_eq_obj *eqo)
+{
+	spin_lock_bh(&eqo->lock);
+
+	WARN_ON(eqo->state & (BE_EQ_NAPI));
+	eqo->state = BE_EQ_IDLE;
+
+	spin_unlock_bh(&eqo->lock);
+}
+
+static inline void be_enable_busy_poll(struct be_eq_obj *eqo)
+{
+	spin_lock_init(&eqo->lock);
+	eqo->state = BE_EQ_IDLE;
+}
+
+static inline void be_disable_busy_poll(struct be_eq_obj *eqo)
+{
+	local_bh_disable();
+
+	/* It's enough to just acquire napi lock on the eqo to stop
+	 * be_busy_poll() from processing any queueus.
+	 */
+	while (!be_lock_napi(eqo))
+		mdelay(1);
+
+	local_bh_enable();
+}
+
+#else /* CONFIG_NET_RX_BUSY_POLL */
+
+static inline bool be_lock_napi(struct be_eq_obj *eqo)
+{
+	return true;
+}
+
+static inline void be_unlock_napi(struct be_eq_obj *eqo)
+{
+}
+
+static inline bool be_lock_busy_poll(struct be_eq_obj *eqo)
+{
+	return false;
+}
+
+static inline void be_unlock_busy_poll(struct be_eq_obj *eqo)
+{
+}
+
+static inline void be_enable_busy_poll(struct be_eq_obj *eqo)
+{
+}
+
+static inline void be_disable_busy_poll(struct be_eq_obj *eqo)
+{
+}
+#endif /* CONFIG_NET_RX_BUSY_POLL */
+
 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm,
 		  u16 num_popped);
 void be_link_status_update(struct be_adapter *adapter, u8 link_status);
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 393e3dc05a36..03e0c74f2516 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -22,6 +22,7 @@
 #include <asm/div64.h>
 #include <linux/aer.h>
 #include <linux/if_bridge.h>
+#include <net/busy_poll.h>
 
 MODULE_VERSION(DRV_VER);
 MODULE_DEVICE_TABLE(pci, be_dev_ids);
@@ -1556,7 +1557,7 @@ static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
 }
 
 /* Process the RX completion indicated by rxcp when GRO is disabled */
-static void be_rx_compl_process(struct be_rx_obj *rxo,
+static void be_rx_compl_process(struct be_rx_obj *rxo, struct napi_struct *napi,
 				struct be_rx_compl_info *rxcp)
 {
 	struct be_adapter *adapter = rxo->adapter;
@@ -1581,7 +1582,7 @@ static void be_rx_compl_process(struct be_rx_obj *rxo,
 	skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
 	if (netdev->features & NETIF_F_RXHASH)
 		skb->rxhash = rxcp->rss_hash;
-
+	skb_mark_napi_id(skb, napi);
 
 	if (rxcp->vlanf)
 		__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
@@ -1639,6 +1640,7 @@ static void be_rx_compl_process_gro(struct be_rx_obj *rxo,
 	skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
 	if (adapter->netdev->features & NETIF_F_RXHASH)
 		skb->rxhash = rxcp->rss_hash;
+	skb_mark_napi_id(skb, napi);
 
 	if (rxcp->vlanf)
 		__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
@@ -1819,6 +1821,8 @@ static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
 
 	if (posted) {
 		atomic_add(posted, &rxq->used);
+		if (rxo->rx_post_starved)
+			rxo->rx_post_starved = false;
 		be_rxq_notify(adapter, rxq->id, posted);
 	} else if (atomic_read(&rxq->used) == 0) {
 		/* Let be_worker replenish when memory is available */
@@ -2021,6 +2025,7 @@ static void be_evt_queues_destroy(struct be_adapter *adapter)
 		if (eqo->q.created) {
 			be_eq_clean(eqo);
 			be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
+			napi_hash_del(&eqo->napi);
 			netif_napi_del(&eqo->napi);
 		}
 		be_queue_free(adapter, &eqo->q);
@@ -2040,6 +2045,7 @@ static int be_evt_queues_create(struct be_adapter *adapter)
 	for_all_evt_queues(adapter, eqo, i) {
 		netif_napi_add(adapter->netdev, &eqo->napi, be_poll,
 			       BE_NAPI_WEIGHT);
+		napi_hash_add(&eqo->napi);
 		aic = &adapter->aic_obj[i];
 		eqo->adapter = adapter;
 		eqo->tx_budget = BE_TX_BUDGET;
@@ -2262,7 +2268,7 @@ static inline bool do_gro(struct be_rx_compl_info *rxcp)
 }
 
 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
-			int budget)
+			int budget, int polling)
 {
 	struct be_adapter *adapter = rxo->adapter;
 	struct be_queue_info *rx_cq = &rxo->cq;
@@ -2293,10 +2299,12 @@ static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
 			goto loop_continue;
 		}
 
-		if (do_gro(rxcp))
+		/* Don't do gro when we're busy_polling */
+		if (do_gro(rxcp) && polling != BUSY_POLLING)
 			be_rx_compl_process_gro(rxo, napi, rxcp);
 		else
-			be_rx_compl_process(rxo, rxcp);
+			be_rx_compl_process(rxo, napi, rxcp);
+
 loop_continue:
 		be_rx_stats_update(rxo, rxcp);
 	}
@@ -2304,7 +2312,11 @@ loop_continue:
 	if (work_done) {
 		be_cq_notify(adapter, rx_cq->id, true, work_done);
 
-		if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM)
+		/* When an rx-obj gets into post_starved state, just
+		 * let be_worker do the posting.
+		 */
+		if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM &&
+		    !rxo->rx_post_starved)
 			be_post_rx_frags(rxo, GFP_ATOMIC);
 	}
 
@@ -2349,6 +2361,7 @@ int be_poll(struct napi_struct *napi, int budget)
 	struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
 	struct be_adapter *adapter = eqo->adapter;
 	int max_work = 0, work, i, num_evts;
+	struct be_rx_obj *rxo;
 	bool tx_done;
 
 	num_evts = events_get(eqo);
@@ -2361,13 +2374,18 @@ int be_poll(struct napi_struct *napi, int budget)
 			max_work = budget;
 	}
 
-	/* This loop will iterate twice for EQ0 in which
-	 * completions of the last RXQ (default one) are also processed
-	 * For other EQs the loop iterates only once
-	 */
-	for (i = eqo->idx; i < adapter->num_rx_qs; i += adapter->num_evt_qs) {
-		work = be_process_rx(&adapter->rx_obj[i], napi, budget);
-		max_work = max(work, max_work);
+	if (be_lock_napi(eqo)) {
+		/* This loop will iterate twice for EQ0 in which
+		 * completions of the last RXQ (default one) are also processed
+		 * For other EQs the loop iterates only once
+		 */
+		for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
+			work = be_process_rx(rxo, napi, budget, NAPI_POLLING);
+			max_work = max(work, max_work);
+		}
+		be_unlock_napi(eqo);
+	} else {
+		max_work = budget;
 	}
 
 	if (is_mcc_eqo(eqo))
@@ -2383,6 +2401,28 @@ int be_poll(struct napi_struct *napi, int budget)
 	return max_work;
 }
 
+#ifdef CONFIG_NET_RX_BUSY_POLL
+static int be_busy_poll(struct napi_struct *napi)
+{
+	struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
+	struct be_adapter *adapter = eqo->adapter;
+	struct be_rx_obj *rxo;
+	int i, work = 0;
+
+	if (!be_lock_busy_poll(eqo))
+		return LL_FLUSH_BUSY;
+
+	for_all_rx_queues_on_eq(adapter, eqo, rxo, i) {
+		work = be_process_rx(rxo, napi, 4, BUSY_POLLING);
+		if (work)
+			break;
+	}
+
+	be_unlock_busy_poll(eqo);
+	return work;
+}
+#endif
+
 void be_detect_error(struct be_adapter *adapter)
 {
 	u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
@@ -2614,9 +2654,11 @@ static int be_close(struct net_device *netdev)
 
 	be_roce_dev_close(adapter);
 
-	if (adapter->flags & BE_FLAGS_NAPI_ENABLED) {
-		for_all_evt_queues(adapter, eqo, i)
+	for_all_evt_queues(adapter, eqo, i) {
+		if (adapter->flags & BE_FLAGS_NAPI_ENABLED) {
 			napi_disable(&eqo->napi);
+			be_disable_busy_poll(eqo);
+		}
 		adapter->flags &= ~BE_FLAGS_NAPI_ENABLED;
 	}
 
@@ -2727,6 +2769,7 @@ static int be_open(struct net_device *netdev)
 
 	for_all_evt_queues(adapter, eqo, i) {
 		napi_enable(&eqo->napi);
+		be_enable_busy_poll(eqo);
 		be_eq_notify(adapter, eqo->q.id, true, false, 0);
 	}
 	adapter->flags |= BE_FLAGS_NAPI_ENABLED;
@@ -3989,6 +4032,9 @@ static const struct net_device_ops be_netdev_ops = {
 #endif
 	.ndo_bridge_setlink	= be_ndo_bridge_setlink,
 	.ndo_bridge_getlink	= be_ndo_bridge_getlink,
+#ifdef CONFIG_NET_RX_BUSY_POLL
+	.ndo_busy_poll		= be_busy_poll
+#endif
 };
 
 static void be_netdev_init(struct net_device *netdev)
@@ -4376,10 +4422,11 @@ static void be_worker(struct work_struct *work)
 		be_cmd_get_die_temperature(adapter);
 
 	for_all_rx_queues(adapter, rxo, i) {
-		if (rxo->rx_post_starved) {
-			rxo->rx_post_starved = false;
+		/* Replenish RX-queues starved due to memory
+		 * allocation failures.
+		 */
+		if (rxo->rx_post_starved)
 			be_post_rx_frags(rxo, GFP_KERNEL);
-		}
 	}
 
 	be_eqd_update(adapter);
-- 
cgit 


From ebd46f016a30ad4cc766540fe89b0974a0278dba Mon Sep 17 00:00:00 2001
From: Henrik Austad <haustad@cisco.com>
Date: Sat, 26 Oct 2013 23:04:12 +0200
Subject: doc: add missing files to timers/00-INDEX

- timers-howto was added by commit 0fcb8081 (Documentation: Add
  timers/timers-howto.txt)
- NO_HZ was added by commit 0c87f9b5 (nohz_full: Add documentation.)

Cc: Patrick Pannuto <ppannuto@codeaurora.org>
Signed-off-by: Henrik Austad <haustad@cisco.com>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 Documentation/timers/00-INDEX | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/timers/00-INDEX b/Documentation/timers/00-INDEX
index a9248da5cdbc..ef2ccbf77fa2 100644
--- a/Documentation/timers/00-INDEX
+++ b/Documentation/timers/00-INDEX
@@ -8,5 +8,9 @@ hpet_example.c
 	- sample hpet timer test program
 hrtimers.txt
 	- subsystem for high-resolution kernel timers
+NO_HZ.txt
+	- Summary of the different methods for the scheduler clock-interrupts management.
+timers-howto.txt
+	- how to insert delays in the kernel the right (tm) way.
 timer_stats.txt
 	- timer usage statistics
-- 
cgit 


From d41f950e27f0e155d0118e71403d2bd564d94787 Mon Sep 17 00:00:00 2001
From: Lothar Waßmann <LW@KARO-electronics.de>
Date: Wed, 7 Aug 2013 08:15:37 +0200
Subject: mtd: nand: gpmi-nand: janitorial cleanup: (commas after last element
 of struct initializer)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Acked-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
---
 drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index a9830ff8e3f3..10a092dbaa71 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -1691,19 +1691,19 @@ static const struct platform_device_id gpmi_ids[] = {
 	{ .name = "imx23-gpmi-nand", .driver_data = IS_MX23, },
 	{ .name = "imx28-gpmi-nand", .driver_data = IS_MX28, },
 	{ .name = "imx6q-gpmi-nand", .driver_data = IS_MX6Q, },
-	{},
+	{}
 };
 
 static const struct of_device_id gpmi_nand_id_table[] = {
 	{
 		.compatible = "fsl,imx23-gpmi-nand",
-		.data = (void *)&gpmi_ids[IS_MX23]
+		.data = (void *)&gpmi_ids[IS_MX23],
 	}, {
 		.compatible = "fsl,imx28-gpmi-nand",
-		.data = (void *)&gpmi_ids[IS_MX28]
+		.data = (void *)&gpmi_ids[IS_MX28],
 	}, {
 		.compatible = "fsl,imx6q-gpmi-nand",
-		.data = (void *)&gpmi_ids[IS_MX6Q]
+		.data = (void *)&gpmi_ids[IS_MX6Q],
 	}, {}
 };
 MODULE_DEVICE_TABLE(of, gpmi_nand_id_table);
-- 
cgit 


From a6eaa2ae7820f0cca742917f85f34ef1eed2c95d Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Mon, 2 Sep 2013 23:37:53 -0300
Subject: of_mtd: Add no-op stubs to support CONFIG_OF=n

Just like the rest of the subsystems, let's add the required no-op
functions to implement stubs when CONFIG_OF=n.

This prevents MTD drivers from having ugly ifdefs in their code,
and instead hide the ifdef monster in the header closet (far away
from people's sight).

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 include/linux/of_mtd.h | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/include/linux/of_mtd.h b/include/linux/of_mtd.h
index ed7f267e6389..6f10e938ff7e 100644
--- a/include/linux/of_mtd.h
+++ b/include/linux/of_mtd.h
@@ -10,10 +10,29 @@
 #define __LINUX_OF_NET_H
 
 #ifdef CONFIG_OF_MTD
+
 #include <linux/of.h>
 int of_get_nand_ecc_mode(struct device_node *np);
 int of_get_nand_bus_width(struct device_node *np);
 bool of_get_nand_on_flash_bbt(struct device_node *np);
-#endif
+
+#else /* CONFIG_OF_MTD */
+
+static inline int of_get_nand_ecc_mode(struct device_node *np)
+{
+	return -ENOSYS;
+}
+
+static inline int of_get_nand_bus_width(struct device_node *np)
+{
+	return -ENOSYS;
+}
+
+static inline bool of_get_nand_on_flash_bbt(struct device_node *np)
+{
+	return false;
+}
+
+#endif /* CONFIG_OF_MTD */
 
 #endif /* __LINUX_OF_MTD_H */
-- 
cgit 


From 2ee41fa0bad874e9fef3743979d297f97b7eda49 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Sat, 10 Aug 2013 01:01:05 -0700
Subject: nand: docg4: use nand_base's default BBT scan

There's no point in the low level driver doing the work that nand_base
already is doing; just let nand_base set the default BBT scanning
function.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Mike Dunn <mikedunn@newsguy.com>
---
 drivers/mtd/nand/docg4.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c
index 548db2389fab..7c38b8ad4404 100644
--- a/drivers/mtd/nand/docg4.c
+++ b/drivers/mtd/nand/docg4.c
@@ -1239,7 +1239,6 @@ static void __init init_mtd_structs(struct mtd_info *mtd)
 	nand->block_markbad = docg4_block_markbad;
 	nand->read_buf = docg4_read_buf;
 	nand->write_buf = docg4_write_buf16;
-	nand->scan_bbt = nand_default_bbt;
 	nand->erase_cmd = docg4_erase_block;
 	nand->ecc.read_page = docg4_read_page;
 	nand->ecc.write_page = docg4_write_page;
-- 
cgit 


From 252026ab9382b5204b7ccd152863a49ae7408656 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Sat, 10 Aug 2013 01:03:33 -0700
Subject: mtd: nand: lpc32xx_slc: don't call nand_default_bbt directly

This driver is doing some strange logic here. If it doesn't have
flash-based BBT enabled, it allows nand_scan_tail() to scan the BBT. But
if it is using flash-based BBT, it tells nand_scan_tail() to skip
scanning, then it immediately calls the default BBT scanning function
itself.

As I read it, this logic is equivalent to the default nand_scan_tail()
behavior without interfering with NAND_SKIP_BBTSCAN or calling
nand_default_bbt() directly at all.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/lpc32xx_slc.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c
index add75709d415..6d5f8c515436 100644
--- a/drivers/mtd/nand/lpc32xx_slc.c
+++ b/drivers/mtd/nand/lpc32xx_slc.c
@@ -893,7 +893,6 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
 
 	/* Avoid extra scan if using BBT, setup BBT support */
 	if (host->ncfg->use_bbt) {
-		chip->options |= NAND_SKIP_BBTSCAN;
 		chip->bbt_options |= NAND_BBT_USE_FLASH;
 
 		/*
@@ -915,13 +914,6 @@ static int lpc32xx_nand_probe(struct platform_device *pdev)
 		goto err_exit3;
 	}
 
-	/* Standard layout in FLASH for bad block tables */
-	if (host->ncfg->use_bbt) {
-		if (nand_default_bbt(mtd) < 0)
-			dev_err(&pdev->dev,
-			       "Error initializing default bad block tables\n");
-	}
-
 	mtd->name = "nxp_lpc3220_slc";
 	ppdata.of_node = pdev->dev.of_node;
 	res = mtd_device_parse_register(mtd, NULL, &ppdata, host->ncfg->parts,
-- 
cgit 


From 4fd18ae46d207987737d94f8d67483f8d8813b15 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Sat, 24 Aug 2013 00:21:30 -0700
Subject: mtd: nandsim: don't call nand_default_bbt() directly

We want the default nand_chip.scan_bbt() function, so just use the
proper indirection.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/nandsim.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index bdc1d15369f8..fdcc5bd3c06b 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -2372,7 +2372,7 @@ static int __init ns_init_module(void)
 	if ((retval = init_nandsim(nsmtd)) != 0)
 		goto err_exit;
 
-	if ((retval = nand_default_bbt(nsmtd)) != 0)
+	if ((retval = chip->scan_bbt(nsmtd)) != 0)
 		goto err_exit;
 
 	if ((retval = parse_badblocks(nand, nsmtd)) != 0)
-- 
cgit 


From 552fb55d6e0a83a751385cebc214c090626765fc Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Sat, 10 Aug 2013 01:09:49 -0700
Subject: mtd: nand: stop exporting nand_default_bbt

I removed the last non-nand_base users of this, and we shouldn't have
any more modules that need to access it. It's only non-static to share
between nand_base and nand_bbt.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/nand_bbt.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index bc06196d5739..c75b6a7c6ea4 100644
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -1392,4 +1392,3 @@ int nand_markbad_bbt(struct mtd_info *mtd, loff_t offs)
 }
 
 EXPORT_SYMBOL(nand_scan_bbt);
-EXPORT_SYMBOL(nand_default_bbt);
-- 
cgit 


From be1ee7d88162fa7e2de45b4f952bf566e8ffe97d Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Sat, 10 Aug 2013 10:36:00 -0700
Subject: mtd: dataflash: remove unused field

struct dataflash's 'partition' field is unused. Just remove it.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: David Brownell <david-b@pacbell.net>
---
 drivers/mtd/devices/mtd_dataflash.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index 0e8cbfeba11e..1cfbfcfb6e19 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -88,8 +88,6 @@ struct dataflash {
 	uint8_t			command[4];
 	char			name[24];
 
-	unsigned		partitioned:1;
-
 	unsigned short		page_offset;	/* offset in flash address */
 	unsigned int		page_size;	/* of bytes per page */
 
-- 
cgit 


From 8c5194361de9f691a20a4f31c4945c8c95f9268b Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Sat, 10 Aug 2013 22:57:30 -0700
Subject: mtd: denali: make init function static

It's only used in this file.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/denali.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index 2ed2bb33a6e7..154b033b4e8e 100644
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -1394,7 +1394,7 @@ static struct nand_bbt_descr bbt_mirror_descr = {
 };
 
 /* initialize driver data structures */
-void denali_drv_init(struct denali_nand_info *denali)
+static void denali_drv_init(struct denali_nand_info *denali)
 {
 	denali->idx = 0;
 
-- 
cgit 


From 53d66baef631ec7fa83dd1b161bf4c3ebabeb73e Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Thu, 15 Aug 2013 22:44:57 -0700
Subject: mtd: onenand: remove redundant offset check

The mtd_block_isbad() interface already checks for this.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/onenand/onenand_base.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index b3f41f200622..7b7c1d21f612 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -2556,10 +2556,6 @@ static int onenand_block_isbad(struct mtd_info *mtd, loff_t ofs)
 {
 	int ret;
 
-	/* Check for invalid offset */
-	if (ofs > mtd->size)
-		return -EINVAL;
-
 	onenand_get_device(mtd, FL_READING);
 	ret = onenand_block_isbad_nolock(mtd, ofs, 0);
 	onenand_release_device(mtd);
-- 
cgit 


From aaadd9819a128fb7ad988b6808581e3175859e2f Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Fri, 23 Aug 2013 23:24:47 -0700
Subject: mtd: nand: remove obsolete 'ecclayout' field

This field is never used, except to print it out.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/fsl_elbc_nand.c | 2 --
 drivers/mtd/nand/fsl_ifc_nand.c  | 2 --
 include/linux/mtd/nand.h         | 2 --
 3 files changed, 6 deletions(-)

diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c
index 20657209a472..c6ef9f1c7a82 100644
--- a/drivers/mtd/nand/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/fsl_elbc_nand.c
@@ -650,8 +650,6 @@ static int fsl_elbc_chip_init_tail(struct mtd_info *mtd)
 	        chip->page_shift);
 	dev_dbg(priv->dev, "fsl_elbc_init: nand->phys_erase_shift = %d\n",
 	        chip->phys_erase_shift);
-	dev_dbg(priv->dev, "fsl_elbc_init: nand->ecclayout = %p\n",
-	        chip->ecclayout);
 	dev_dbg(priv->dev, "fsl_elbc_init: nand->ecc.mode = %d\n",
 	        chip->ecc.mode);
 	dev_dbg(priv->dev, "fsl_elbc_init: nand->ecc.steps = %d\n",
diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index 317a771f1587..47acda6c4e92 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -718,8 +718,6 @@ static int fsl_ifc_chip_init_tail(struct mtd_info *mtd)
 							chip->page_shift);
 	dev_dbg(priv->dev, "%s: nand->phys_erase_shift = %d\n", __func__,
 							chip->phys_erase_shift);
-	dev_dbg(priv->dev, "%s: nand->ecclayout = %p\n", __func__,
-							chip->ecclayout);
 	dev_dbg(priv->dev, "%s: nand->ecc.mode = %d\n", __func__,
 							chip->ecc.mode);
 	dev_dbg(priv->dev, "%s: nand->ecc.steps = %d\n", __func__,
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index ac8e89d5a792..129548169400 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -498,7 +498,6 @@ struct nand_buffers {
  *			supported, 0 otherwise.
  * @onfi_set_features:	[REPLACEABLE] set the features for ONFI nand
  * @onfi_get_features:	[REPLACEABLE] get the features for ONFI nand
- * @ecclayout:		[REPLACEABLE] the default ECC placement scheme
  * @bbt:		[INTERN] bad block table pointer
  * @bbt_td:		[REPLACEABLE] bad block table descriptor for flash
  *			lookup.
@@ -572,7 +571,6 @@ struct nand_chip {
 
 	uint8_t *oob_poi;
 	struct nand_hw_control *controller;
-	struct nand_ecclayout *ecclayout;
 
 	struct nand_ecc_ctrl ecc;
 	struct nand_buffers *buffers;
-- 
cgit 


From 6b7368c2305657c5b94ff18f2c8c8a6d7040b45a Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Tue, 27 Aug 2013 18:01:19 -0700
Subject: mtd: onenand: remove unused variable assignments

These variable assignments are never used (the variables are either
never used or are overwritten before use). This resolves some compiler
warnings like the following:

    drivers/mtd/onenand/onenand_base.c: In function 'flexonenand_get_boundary':
    drivers/mtd/onenand/onenand_base.c:3532:6: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
    drivers/mtd/onenand/onenand_base.c: In function 'onenand_probe':
    drivers/mtd/onenand/onenand_base.c:3838:6: warning: variable 'maf_id' set but not used [-Wunused-but-set-variable]

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
---
 drivers/mtd/onenand/onenand_base.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index 7b7c1d21f612..1de33b5d3903 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -3525,7 +3525,7 @@ static int flexonenand_get_boundary(struct mtd_info *mtd)
 {
 	struct onenand_chip *this = mtd->priv;
 	unsigned die, bdry;
-	int ret, syscfg, locked;
+	int syscfg, locked;
 
 	/* Disable ECC */
 	syscfg = this->read_word(this->base + ONENAND_REG_SYS_CFG1);
@@ -3536,7 +3536,7 @@ static int flexonenand_get_boundary(struct mtd_info *mtd)
 		this->wait(mtd, FL_SYNCING);
 
 		this->command(mtd, FLEXONENAND_CMD_READ_PI, die, 0);
-		ret = this->wait(mtd, FL_READING);
+		this->wait(mtd, FL_READING);
 
 		bdry = this->read_word(this->base + ONENAND_DATARAM);
 		if ((bdry >> FLEXONENAND_PI_UNLOCK_SHIFT) == 3)
@@ -3546,7 +3546,7 @@ static int flexonenand_get_boundary(struct mtd_info *mtd)
 		this->boundary[die] = bdry & FLEXONENAND_PI_MASK;
 
 		this->command(mtd, ONENAND_CMD_RESET, 0, 0);
-		ret = this->wait(mtd, FL_RESETING);
+		this->wait(mtd, FL_RESETING);
 
 		printk(KERN_INFO "Die %d boundary: %d%s\n", die,
 		       this->boundary[die], locked ? "(Locked)" : "(Unlocked)");
@@ -3730,7 +3730,7 @@ static int flexonenand_set_boundary(struct mtd_info *mtd, int die,
 
 	/* Check is boundary is locked */
 	this->command(mtd, FLEXONENAND_CMD_READ_PI, die, 0);
-	ret = this->wait(mtd, FL_READING);
+	this->wait(mtd, FL_READING);
 
 	thisboundary = this->read_word(this->base + ONENAND_DATARAM);
 	if ((thisboundary >> FLEXONENAND_PI_UNLOCK_SHIFT) != 3) {
@@ -3831,7 +3831,7 @@ static int onenand_chip_probe(struct mtd_info *mtd)
 static int onenand_probe(struct mtd_info *mtd)
 {
 	struct onenand_chip *this = mtd->priv;
-	int maf_id, dev_id, ver_id;
+	int dev_id, ver_id;
 	int density;
 	int ret;
 
@@ -3839,8 +3839,7 @@ static int onenand_probe(struct mtd_info *mtd)
 	if (ret)
 		return ret;
 
-	/* Read manufacturer and device IDs from Register */
-	maf_id = this->read_word(this->base + ONENAND_REG_MANUFACTURER_ID);
+	/* Device and version IDs from Register */
 	dev_id = this->read_word(this->base + ONENAND_REG_DEVICE_ID);
 	ver_id = this->read_word(this->base + ONENAND_REG_VERSION_ID);
 	this->technology = this->read_word(this->base + ONENAND_REG_TECHNOLOGY);
-- 
cgit 


From 535ab9033433c00116e446beaac96503c7282fd1 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Wed, 28 Aug 2013 11:19:05 -0700
Subject: mtd: lpddr_cmds: make function static

do_xxlock() is only used locally. This silences a sparse warning:

drivers/mtd/lpddr/lpddr_cmds.c:706:5: warning: no previous prototype for 'do_xxlock' [-Wmissing-prototypes]

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/lpddr/lpddr_cmds.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/lpddr/lpddr_cmds.c b/drivers/mtd/lpddr/lpddr_cmds.c
index d3cfe26beeaa..2ef19aa0086b 100644
--- a/drivers/mtd/lpddr/lpddr_cmds.c
+++ b/drivers/mtd/lpddr/lpddr_cmds.c
@@ -703,7 +703,7 @@ static int lpddr_erase(struct mtd_info *mtd, struct erase_info *instr)
 
 #define DO_XXLOCK_LOCK		1
 #define DO_XXLOCK_UNLOCK	2
-int do_xxlock(struct mtd_info *mtd, loff_t adr, uint32_t len, int thunk)
+static int do_xxlock(struct mtd_info *mtd, loff_t adr, uint32_t len, int thunk)
 {
 	int ret = 0;
 	struct map_info *map = mtd->priv;
-- 
cgit 


From c7f23a70635895b5125aeb5593aaf8cb44d3a088 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Tue, 13 Aug 2013 10:51:55 -0700
Subject: mtd: nand: cleanup ONFI printed errors, warnings

The ONFI detection routine is too verbose in some cases and not verbose
enough in others. This patch refactors it to print only when there are
significant warnings/errors.

Probing in 16-bit mode:
  It is unnecessary to print until after the READID (address 20h)
  command. READID *has* to work properly in whatever bus width
  configuration we are in, or else no identification mode works. So we
  can silence some useless warnings on systems which come up in 16-bit
  mode and do not even respond with an O-N-F-I string.

Valid parameter page:
  Nobody needs to see this. Do we inform the user every time other
  hardware responds properly? Instead, add an error message if *no*
  uncorrupted parameter pages are found.

ONFI ECC:
  Most drivers don't yet use the reported minimum ECC values, so it
  shouldn't yet be a fatal condition if the extended parameter page is
  incorrect. But we should at least give a warning for the corner cases
  that we don't expect.

ONFI flash detected:
  Nobody needs to see this. This is the expected case, that we detect
  ONFI properly, or else it wasn't ONFI-compliant and is detected by
  some other routine.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: Huang Shijie <b32955@freescale.com>
Cc: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
---
 drivers/mtd/nand/nand_base.c | 24 +++++++++++++++---------
 1 file changed, 15 insertions(+), 9 deletions(-)

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index d340b2f198c6..00022b456dff 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2935,29 +2935,34 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
 	int i;
 	int val;
 
-	/* ONFI need to be probed in 8 bits mode, and 16 bits should be selected with NAND_BUSWIDTH_AUTO */
-	if (chip->options & NAND_BUSWIDTH_16) {
-		pr_err("Trying ONFI probe in 16 bits mode, aborting !\n");
-		return 0;
-	}
 	/* Try ONFI for unknown chip or LP */
 	chip->cmdfunc(mtd, NAND_CMD_READID, 0x20, -1);
 	if (chip->read_byte(mtd) != 'O' || chip->read_byte(mtd) != 'N' ||
 		chip->read_byte(mtd) != 'F' || chip->read_byte(mtd) != 'I')
 		return 0;
 
+	/*
+	 * ONFI must be probed in 8-bit mode or with NAND_BUSWIDTH_AUTO, not
+	 * with NAND_BUSWIDTH_16
+	 */
+	if (chip->options & NAND_BUSWIDTH_16) {
+		pr_err("ONFI cannot be probed in 16-bit mode; aborting\n");
+		return 0;
+	}
+
 	chip->cmdfunc(mtd, NAND_CMD_PARAM, 0, -1);
 	for (i = 0; i < 3; i++) {
 		chip->read_buf(mtd, (uint8_t *)p, sizeof(*p));
 		if (onfi_crc16(ONFI_CRC_BASE, (uint8_t *)p, 254) ==
 				le16_to_cpu(p->crc)) {
-			pr_info("ONFI param page %d valid\n", i);
 			break;
 		}
 	}
 
-	if (i == 3)
+	if (i == 3) {
+		pr_err("Could not find valid ONFI parameter page; aborting\n");
 		return 0;
+	}
 
 	/* Check version */
 	val = le16_to_cpu(p->revision);
@@ -3009,10 +3014,11 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
 
 		/* The Extended Parameter Page is supported since ONFI 2.1. */
 		if (nand_flash_detect_ext_param_page(mtd, chip, p))
-			pr_info("Failed to detect the extended param page.\n");
+			pr_warn("Failed to detect ONFI extended param page\n");
+	} else {
+		pr_warn("Could not retrieve ONFI ECC requirements\n");
 	}
 
-	pr_info("ONFI flash detected\n");
 	return 1;
 }
 
-- 
cgit 


From 86bc7bddc9bf7841372df5880805506228dbf4f4 Mon Sep 17 00:00:00 2001
From: Paul Bolle <pebolle@tiscali.nl>
Date: Wed, 7 Aug 2013 20:16:49 +0200
Subject: mtd: onenand: omap: remove two unused functions

Nothing calls omap2_onenand_rephase(). And __adjust_timing() is only
called by omap2_onenand_rephase(). Remove these two unused functions.

Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/onenand/omap2.c | 22 ----------------------
 1 file changed, 22 deletions(-)

diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c
index 558071bf92de..2362909d20c0 100644
--- a/drivers/mtd/onenand/omap2.c
+++ b/drivers/mtd/onenand/omap2.c
@@ -573,28 +573,6 @@ static int omap2_onenand_write_bufferram(struct mtd_info *mtd, int area,
 
 static struct platform_driver omap2_onenand_driver;
 
-static int __adjust_timing(struct device *dev, void *data)
-{
-	int ret = 0;
-	struct omap2_onenand *c;
-
-	c = dev_get_drvdata(dev);
-
-	BUG_ON(c->setup == NULL);
-
-	/* DMA is not in use so this is all that is needed */
-	/* Revisit for OMAP3! */
-	ret = c->setup(c->onenand.base, &c->freq);
-
-	return ret;
-}
-
-int omap2_onenand_rephase(void)
-{
-	return driver_for_each_device(&omap2_onenand_driver.driver, NULL,
-				      NULL, __adjust_timing);
-}
-
 static void omap2_onenand_shutdown(struct platform_device *pdev)
 {
 	struct omap2_onenand *c = dev_get_drvdata(&pdev->dev);
-- 
cgit 


From e9d8da807d818ce8e8399f528fd8efaac3eef36b Mon Sep 17 00:00:00 2001
From: Josh Wu <josh.wu@atmel.com>
Date: Wed, 18 Sep 2013 11:31:19 +0800
Subject: mtd: atmel_nand: remove #if defined(CONFIG_OF) around OF-specific
 code

Since the of specific code are declared in <linux/of_mtd.h> regardless
of CONFIG_OF. Remove the #if defined(CONFIG_OF) guard and use an
IS_ENABLED(CONFIG_OF) instead.

Thanks to Ezequiel Garcia's for this protype.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/atmel_nand.c | 17 +++--------------
 1 file changed, 3 insertions(+), 14 deletions(-)

diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 060feeaf6b3e..72c26112df85 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -1449,7 +1449,6 @@ static void atmel_nand_hwctl(struct mtd_info *mtd, int mode)
 		ecc_writel(host->ecc, CR, ATMEL_ECC_RST);
 }
 
-#if defined(CONFIG_OF)
 static int atmel_of_init_port(struct atmel_nand_host *host,
 			      struct device_node *np)
 {
@@ -1457,7 +1456,7 @@ static int atmel_of_init_port(struct atmel_nand_host *host,
 	u32 offset[2];
 	int ecc_mode;
 	struct atmel_nand_data *board = &host->board;
-	enum of_gpio_flags flags;
+	enum of_gpio_flags flags = 0;
 
 	if (of_property_read_u32(np, "atmel,nand-addr-offset", &val) == 0) {
 		if (val >= 32) {
@@ -1540,13 +1539,6 @@ static int atmel_of_init_port(struct atmel_nand_host *host,
 
 	return 0;
 }
-#else
-static int atmel_of_init_port(struct atmel_nand_host *host,
-			      struct device_node *np)
-{
-	return -EINVAL;
-}
-#endif
 
 static int __init atmel_hw_nand_init_params(struct platform_device *pdev,
 					 struct atmel_nand_host *host)
@@ -2019,7 +2011,8 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
 	mtd = &host->mtd;
 	nand_chip = &host->nand_chip;
 	host->dev = &pdev->dev;
-	if (pdev->dev.of_node) {
+	if (IS_ENABLED(CONFIG_OF) && pdev->dev.of_node) {
+		/* Only when CONFIG_OF is enabled of_node can be parsed */
 		res = atmel_of_init_port(host, pdev->dev.of_node);
 		if (res)
 			goto err_nand_ioremap;
@@ -2207,14 +2200,12 @@ static int __exit atmel_nand_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#if defined(CONFIG_OF)
 static const struct of_device_id atmel_nand_dt_ids[] = {
 	{ .compatible = "atmel,at91rm9200-nand" },
 	{ /* sentinel */ }
 };
 
 MODULE_DEVICE_TABLE(of, atmel_nand_dt_ids);
-#endif
 
 static int atmel_nand_nfc_probe(struct platform_device *pdev)
 {
@@ -2253,12 +2244,10 @@ static int atmel_nand_nfc_probe(struct platform_device *pdev)
 	return 0;
 }
 
-#if defined(CONFIG_OF)
 static struct of_device_id atmel_nand_nfc_match[] = {
 	{ .compatible = "atmel,sama5d3-nfc" },
 	{ /* sentinel */ }
 };
-#endif
 
 static struct platform_driver atmel_nand_nfc_driver = {
 	.driver = {
-- 
cgit 


From 81f29b475dae3ebd73a98cde29ef8f3c9670865c Mon Sep 17 00:00:00 2001
From: Josh Wu <josh.wu@atmel.com>
Date: Wed, 18 Sep 2013 11:31:20 +0800
Subject: mtd: atmel_nand: add MODULE_DEVICE_TABLE for nfc driver

This patch also add a const keyword for the of_device_id of nfc.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/atmel_nand.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 72c26112df85..5a5d4572585c 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -2244,10 +2244,11 @@ static int atmel_nand_nfc_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id atmel_nand_nfc_match[] = {
+static const struct of_device_id atmel_nand_nfc_match[] = {
 	{ .compatible = "atmel,sama5d3-nfc" },
 	{ /* sentinel */ }
 };
+MODULE_DEVICE_TABLE(of, atmel_nand_nfc_match);
 
 static struct platform_driver atmel_nand_nfc_driver = {
 	.driver = {
-- 
cgit 


From 2a3d933a46e9948e01fc34348bed0baec8d8bf2b Mon Sep 17 00:00:00 2001
From: Josh Wu <josh.wu@atmel.com>
Date: Wed, 18 Sep 2013 13:58:48 +0800
Subject: mtd: atmel_nand: use minimum ecc requirements of nand:
 ecc_{strength,step}_ds

Since ecc_{strength,step}_ds is introduced in nand_chip structure for
minimum ecc requirements. So we can use them directly and remove our
own get_onfi_ecc_param function.

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/atmel_nand.c | 46 +++++++++----------------------------------
 1 file changed, 9 insertions(+), 37 deletions(-)

diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 5a5d4572585c..ef9c9f547c01 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -1062,56 +1062,28 @@ static void atmel_pmecc_core_init(struct mtd_info *mtd)
 }
 
 /*
- * Get ECC requirement in ONFI parameters, returns -1 if ONFI
- * parameters is not supported.
- * return 0 if success to get the ECC requirement.
- */
-static int get_onfi_ecc_param(struct nand_chip *chip,
-		int *ecc_bits, int *sector_size)
-{
-	*ecc_bits = *sector_size = 0;
-
-	if (chip->onfi_params.ecc_bits == 0xff)
-		/* TODO: the sector_size and ecc_bits need to be find in
-		 * extended ecc parameter, currently we don't support it.
-		 */
-		return -1;
-
-	*ecc_bits = chip->onfi_params.ecc_bits;
-
-	/* The default sector size (ecc codeword size) is 512 */
-	*sector_size = 512;
-
-	return 0;
-}
-
-/*
- * Get ecc requirement from ONFI parameters ecc requirement.
+ * Get minimum ecc requirements from NAND.
  * If pmecc-cap, pmecc-sector-size in DTS are not specified, this function
- * will set them according to ONFI ecc requirement. Otherwise, use the
+ * will set them according to minimum ecc requirement. Otherwise, use the
  * value in DTS file.
  * return 0 if success. otherwise return error code.
  */
 static int pmecc_choose_ecc(struct atmel_nand_host *host,
 		int *cap, int *sector_size)
 {
-	/* Get ECC requirement from ONFI parameters */
-	*cap = *sector_size = 0;
-	if (host->nand_chip.onfi_version) {
-		if (!get_onfi_ecc_param(&host->nand_chip, cap, sector_size))
-			dev_info(host->dev, "ONFI params, minimum required ECC: %d bits in %d bytes\n",
+	/* Get minimum ECC requirements */
+	if (host->nand_chip.ecc_strength_ds) {
+		*cap = host->nand_chip.ecc_strength_ds;
+		*sector_size = host->nand_chip.ecc_step_ds;
+		dev_info(host->dev, "minimum ECC: %d bits in %d bytes\n",
 				*cap, *sector_size);
-		else
-			dev_info(host->dev, "NAND chip ECC reqirement is in Extended ONFI parameter, we don't support yet.\n");
 	} else {
-		dev_info(host->dev, "NAND chip is not ONFI compliant, assume ecc_bits is 2 in 512 bytes");
-	}
-	if (*cap == 0 && *sector_size == 0) {
 		*cap = 2;
 		*sector_size = 512;
+		dev_info(host->dev, "can't detect min. ECC, assume 2 bits in 512 bytes\n");
 	}
 
-	/* If dts file doesn't specify then use the one in ONFI parameters */
+	/* If device tree doesn't specify, use NAND's minimum ECC parameters */
 	if (host->pmecc_corr_cap == 0) {
 		/* use the most fitable ecc bits (the near bigger one ) */
 		if (*cap <= 2)
-- 
cgit 


From 4ae7d228d6048d25a16bee209ebea24c5ecde825 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Mon, 16 Sep 2013 18:20:21 -0700
Subject: mtd: nand: correct extemded param page error handling

If the ONFI extended parameter page gives codeword_size == 0, the
extended ECC information is corrupt and should not be used. Currently,
we (correctly) avoid using the information, but we don't report the
error to the caller, so the caller doesn't know that we didn't
initialize ecc_strength_ds and ecc_step_ds. Now the caller can warn the
user that it does not have sufficient information.

This also removes the false and useless "ONFI extended param page
detected" debug message (it was printed even on the aforementioned
corruption, and for the success case, we don't really want a print).

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Huang Shijie <b32955@freescale.com>
---
 drivers/mtd/nand/nand_base.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 00022b456dff..0b39d0c03f1e 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2912,12 +2912,13 @@ static int nand_flash_detect_ext_param_page(struct mtd_info *mtd,
 	/* get the info we want. */
 	ecc = (struct onfi_ext_ecc_info *)cursor;
 
-	if (ecc->codeword_size) {
-		chip->ecc_strength_ds = ecc->ecc_bits;
-		chip->ecc_step_ds = 1 << ecc->codeword_size;
+	if (!ecc->codeword_size) {
+		pr_debug("Invalid codeword size\n");
+		goto ext_out;
 	}
 
-	pr_info("ONFI extended param page detected.\n");
+	chip->ecc_strength_ds = ecc->ecc_bits;
+	chip->ecc_step_ds = 1 << ecc->codeword_size;
 	ret = 0;
 
 ext_out:
-- 
cgit 


From 1d0ed69ddd714b6e2a974f42896463366923ded6 Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Wed, 25 Sep 2013 14:58:10 +0800
Subject: mtd: nand: add a helper to check the SLC/MLC nand chip

Add a helper to check if a nand chip is SLC or MLC.
This helper makes the code more readable.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/denali.c    |  2 +-
 drivers/mtd/nand/nand_base.c | 14 ++++++--------
 include/linux/mtd/nand.h     |  9 +++++++++
 3 files changed, 16 insertions(+), 9 deletions(-)

diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index 154b033b4e8e..370b9dd7a278 100644
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -1520,7 +1520,7 @@ int denali_init(struct denali_nand_info *denali)
 	 * so just let controller do 15bit ECC for MLC and 8bit ECC for
 	 * SLC if possible.
 	 * */
-	if (denali->nand.cellinfo & NAND_CI_CELLTYPE_MSK &&
+	if (!nand_is_slc(&denali->nand) &&
 			(denali->mtd.oobsize > (denali->bbtskipbytes +
 			ECC_15BITS * (denali->mtd.writesize /
 			ECC_SECTOR_SIZE)))) {
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 0b39d0c03f1e..6ea66270dbf5 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -3108,8 +3108,7 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip,
 	 * ID to decide what to do.
 	 */
 	if (id_len == 6 && id_data[0] == NAND_MFR_SAMSUNG &&
-			(chip->cellinfo & NAND_CI_CELLTYPE_MSK) &&
-			id_data[5] != 0x00) {
+			!nand_is_slc(chip) && id_data[5] != 0x00) {
 		/* Calc pagesize */
 		mtd->writesize = 2048 << (extid & 0x03);
 		extid >>= 2;
@@ -3141,7 +3140,7 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip,
 			(((extid >> 1) & 0x04) | (extid & 0x03));
 		*busw = 0;
 	} else if (id_len == 6 && id_data[0] == NAND_MFR_HYNIX &&
-			(chip->cellinfo & NAND_CI_CELLTYPE_MSK)) {
+			!nand_is_slc(chip)) {
 		unsigned int tmp;
 
 		/* Calc pagesize */
@@ -3204,7 +3203,7 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip,
 		 * - ID byte 5, bit[7]:    1 -> BENAND, 0 -> raw SLC
 		 */
 		if (id_len >= 6 && id_data[0] == NAND_MFR_TOSHIBA &&
-				!(chip->cellinfo & NAND_CI_CELLTYPE_MSK) &&
+				nand_is_slc(chip) &&
 				(id_data[5] & 0x7) == 0x6 /* 24nm */ &&
 				!(id_data[4] & 0x80) /* !BENAND */) {
 			mtd->oobsize = 32 * mtd->writesize >> 9;
@@ -3265,11 +3264,11 @@ static void nand_decode_bbm_options(struct mtd_info *mtd,
 	 * Micron devices with 2KiB pages and on SLC Samsung, Hynix, Toshiba,
 	 * AMD/Spansion, and Macronix.  All others scan only the first page.
 	 */
-	if ((chip->cellinfo & NAND_CI_CELLTYPE_MSK) &&
+	if (!nand_is_slc(chip) &&
 			(maf_id == NAND_MFR_SAMSUNG ||
 			 maf_id == NAND_MFR_HYNIX))
 		chip->bbt_options |= NAND_BBT_SCANLASTPAGE;
-	else if ((!(chip->cellinfo & NAND_CI_CELLTYPE_MSK) &&
+	else if ((nand_is_slc(chip) &&
 				(maf_id == NAND_MFR_SAMSUNG ||
 				 maf_id == NAND_MFR_HYNIX ||
 				 maf_id == NAND_MFR_TOSHIBA ||
@@ -3745,8 +3744,7 @@ int nand_scan_tail(struct mtd_info *mtd)
 	chip->ecc.total = chip->ecc.steps * chip->ecc.bytes;
 
 	/* Allow subpage writes up to ecc.steps. Not possible for MLC flash */
-	if (!(chip->options & NAND_NO_SUBPAGE_WRITE) &&
-	    !(chip->cellinfo & NAND_CI_CELLTYPE_MSK)) {
+	if (!(chip->options & NAND_NO_SUBPAGE_WRITE) && nand_is_slc(chip)) {
 		switch (chip->ecc.steps) {
 		case 2:
 			mtd->subpage_sft = 1;
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 129548169400..5c05bab0ad89 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -795,4 +795,13 @@ static inline int onfi_get_sync_timing_mode(struct nand_chip *chip)
 	return le16_to_cpu(chip->onfi_params.src_sync_timing_mode);
 }
 
+/*
+ * Check if it is a SLC nand.
+ * The !nand_is_slc() can be used to check the MLC/TLC nand chips.
+ * We do not distinguish the MLC and TLC now.
+ */
+static inline bool nand_is_slc(struct nand_chip *chip)
+{
+	return !(chip->cellinfo & NAND_CI_CELLTYPE_MSK);
+}
 #endif /* __LINUX_MTD_NAND_H */
-- 
cgit 


From 7db906b79f69b6ed936a1ef1d788f02e3ad42462 Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Wed, 25 Sep 2013 14:58:11 +0800
Subject: mtd: nand: rename the cellinfo to bits_per_cell

The @cellinfo fields contains unused information, such as write caching,
internal chip numbering, etc. But we only use it to check the SLC or MLC.

This patch tries to make it more clear and simple, renames the @cellinfo
to @bits_per_cell.

In order to avoiding the bisect issue, this patch also does the following
changes:
  (0) add a macro NAND_CI_CELLTYPE_SHIFT to avoid the hardcode.

  (1) add a helper to parse out the cell type : nand_get_bits_per_cell()

  (2) parse out the cell type for extended-ID chips and the full-id nand chips.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/nand_base.c | 14 ++++++++++++--
 include/linux/mtd/nand.h     |  7 ++++---
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 6ea66270dbf5..5fb00957fd25 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -3082,6 +3082,16 @@ static int nand_id_len(u8 *id_data, int arrlen)
 	return arrlen;
 }
 
+/* Extract the bits of per cell from the 3rd byte of the extended ID */
+static int nand_get_bits_per_cell(u8 cellinfo)
+{
+	int bits;
+
+	bits = cellinfo & NAND_CI_CELLTYPE_MSK;
+	bits >>= NAND_CI_CELLTYPE_SHIFT;
+	return bits + 1;
+}
+
 /*
  * Many new NAND share similar device ID codes, which represent the size of the
  * chip. The rest of the parameters must be decoded according to generic or
@@ -3092,7 +3102,7 @@ static void nand_decode_ext_id(struct mtd_info *mtd, struct nand_chip *chip,
 {
 	int extid, id_len;
 	/* The 3rd id byte holds MLC / multichip data */
-	chip->cellinfo = id_data[2];
+	chip->bits_per_cell = nand_get_bits_per_cell(id_data[2]);
 	/* The 4th id byte is the important one */
 	extid = id_data[3];
 
@@ -3292,7 +3302,7 @@ static bool find_full_id_nand(struct mtd_info *mtd, struct nand_chip *chip,
 		mtd->erasesize = type->erasesize;
 		mtd->oobsize = type->oobsize;
 
-		chip->cellinfo = id_data[2];
+		chip->bits_per_cell = nand_get_bits_per_cell(id_data[2]);
 		chip->chipsize = (uint64_t)type->chipsize << 20;
 		chip->options |= type->options;
 		chip->ecc_strength_ds = NAND_ECC_STRENGTH(type);
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 5c05bab0ad89..9e6c8f9f306e 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -198,6 +198,7 @@ typedef enum {
 /* Cell info constants */
 #define NAND_CI_CHIPNR_MSK	0x03
 #define NAND_CI_CELLTYPE_MSK	0x0C
+#define NAND_CI_CELLTYPE_SHIFT	2
 
 /* Keep gcc happy */
 struct nand_chip;
@@ -477,7 +478,7 @@ struct nand_buffers {
  * @badblockbits:	[INTERN] minimum number of set bits in a good block's
  *			bad block marker position; i.e., BBM == 11110111b is
  *			not bad when badblockbits == 7
- * @cellinfo:		[INTERN] MLC/multichip data from chip ident
+ * @bits_per_cell:	[INTERN] number of bits per cell. i.e., 1 means SLC.
  * @ecc_strength_ds:	[INTERN] ECC correctability from the datasheet.
  *			Minimum amount of bit errors per @ecc_step_ds guaranteed
  *			to be correctable. If unknown, set to zero.
@@ -558,7 +559,7 @@ struct nand_chip {
 	int pagebuf;
 	unsigned int pagebuf_bitflips;
 	int subpagesize;
-	uint8_t cellinfo;
+	uint8_t bits_per_cell;
 	uint16_t ecc_strength_ds;
 	uint16_t ecc_step_ds;
 	int badblockpos;
@@ -802,6 +803,6 @@ static inline int onfi_get_sync_timing_mode(struct nand_chip *chip)
  */
 static inline bool nand_is_slc(struct nand_chip *chip)
 {
-	return !(chip->cellinfo & NAND_CI_CELLTYPE_MSK);
+	return chip->bits_per_cell == 1;
 }
 #endif /* __LINUX_MTD_NAND_H */
-- 
cgit 


From 1c195e909cbe335b02a5dd01075ba65448927ae6 Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Wed, 25 Sep 2013 14:58:12 +0800
Subject: mtd: nand: add the "bits per cell" info for legacy ID NAND

The legacy ID NAND are all SLC.
This patch sets 1 to the @bits_per_cell for the legacy ID NAND,
which means they are all SLC.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/nand_base.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 5fb00957fd25..aebc7ea9f379 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -3238,6 +3238,9 @@ static void nand_decode_id(struct mtd_info *mtd, struct nand_chip *chip,
 	mtd->oobsize = mtd->writesize / 32;
 	*busw = type->options & NAND_BUSWIDTH_16;
 
+	/* All legacy ID NAND are small-page, SLC */
+	chip->bits_per_cell = 1;
+
 	/*
 	 * Check for Spansion/AMD ID + repeating 5th, 6th byte since
 	 * some Spansion chips have erasesize that conflicts with size
-- 
cgit 


From 13fbd17941db6af61337d909fd09b9c7f7634632 Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Wed, 25 Sep 2013 14:58:13 +0800
Subject: mtd: nand: set the cell information for ONFI nand

The current code does not set the SLC/MLC information for onfi nand.
(This makes that the kernel treats all the onfi nand as SLC nand.)

This patch fills the cell information for ONFI nands.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/nand_base.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index aebc7ea9f379..137d6c501f19 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2992,6 +2992,7 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
 	mtd->oobsize = le16_to_cpu(p->spare_bytes_per_page);
 	chip->chipsize = le32_to_cpu(p->blocks_per_lun);
 	chip->chipsize *= (uint64_t)mtd->erasesize * p->lun_count;
+	chip->bits_per_cell = p->bits_per_cell;
 
 	if (onfi_feature(chip) & ONFI_FEATURE_16_BIT_BUS)
 		*busw = NAND_BUSWIDTH_16;
-- 
cgit 


From 3723e93c6499d74041c9768aeb921b36490b9585 Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Wed, 25 Sep 2013 14:58:14 +0800
Subject: mtd: nand: print out the cell information for nand chip

Print out the cell information for nand chip.

(Since the message is too long, this patch also splits the log
with two separate pr_info())

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/nand_base.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 137d6c501f19..55c80efb3081 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -3461,11 +3461,13 @@ ident_done:
 	if (mtd->writesize > 512 && chip->cmdfunc == nand_command)
 		chip->cmdfunc = nand_command_lp;
 
-	pr_info("NAND device: Manufacturer ID: 0x%02x, Chip ID: 0x%02x (%s %s),"
-		" %dMiB, page size: %d, OOB size: %d\n",
+	pr_info("NAND device: Manufacturer ID: 0x%02x, Chip ID: 0x%02x (%s %s)\n",
 		*maf_id, *dev_id, nand_manuf_ids[maf_idx].name,
-		chip->onfi_version ? chip->onfi_params.model : type->name,
-		(int)(chip->chipsize >> 20), mtd->writesize, mtd->oobsize);
+		chip->onfi_version ? chip->onfi_params.model : type->name);
+
+	pr_info("NAND device: %dMiB, %s, page size: %d, OOB size: %d\n",
+		(int)(chip->chipsize >> 20), nand_is_slc(chip) ? "SLC" : "MLC",
+		mtd->writesize, mtd->oobsize);
 
 	return type;
 }
-- 
cgit 


From 7a2b89acf8edbff462fa6e1fc6100c5dc85364ed Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Wed, 25 Sep 2013 14:58:15 +0800
Subject: mtd: gpmi: rewrite the gpmi_ecc_write_oob() to support the jffs2

When we use the ECC info which is get from the nand chip's datasheet,
we may have some freed oob area now.

This patch rewrites the gpmi_ecc_write_oob() to implement the ecc.write_oob().
We also update the comment for gpmi_hw_ecclayout.

Yes! We can support the JFFS2 for the SLC nand now.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 29 ++++++++++++++++++++---------
 1 file changed, 20 insertions(+), 9 deletions(-)

diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 10a092dbaa71..37508eb350d0 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -45,7 +45,10 @@ static struct nand_bbt_descr gpmi_bbt_descr = {
 	.pattern	= scan_ff_pattern
 };
 
-/*  We will use all the (page + OOB). */
+/*
+ * We may change the layout if we can get the ECC info from the datasheet,
+ * else we will use all the (page + OOB).
+ */
 static struct nand_ecclayout gpmi_hw_ecclayout = {
 	.eccbytes = 0,
 	.eccpos = { 0, },
@@ -1263,14 +1266,22 @@ static int gpmi_ecc_read_oob(struct mtd_info *mtd, struct nand_chip *chip,
 static int
 gpmi_ecc_write_oob(struct mtd_info *mtd, struct nand_chip *chip, int page)
 {
-	/*
-	 * The BCH will use all the (page + oob).
-	 * Our gpmi_hw_ecclayout can only prohibit the JFFS2 to write the oob.
-	 * But it can not stop some ioctls such MEMWRITEOOB which uses
-	 * MTD_OPS_PLACE_OOB. So We have to implement this function to prohibit
-	 * these ioctls too.
-	 */
-	return -EPERM;
+	struct nand_oobfree *of = mtd->ecclayout->oobfree;
+	int status = 0;
+
+	/* Do we have available oob area? */
+	if (!of->length)
+		return -EPERM;
+
+	if (!nand_is_slc(chip))
+		return -EPERM;
+
+	chip->cmdfunc(mtd, NAND_CMD_SEQIN, mtd->writesize + of->offset, page);
+	chip->write_buf(mtd, chip->oob_poi + of->offset, of->length);
+	chip->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
+
+	status = chip->waitfunc(mtd, chip);
+	return status & NAND_STATUS_FAIL ? -EIO : 0;
 }
 
 static int gpmi_block_markbad(struct mtd_info *mtd, loff_t ofs)
-- 
cgit 


From fda5b0e24dca3d52671e5a6543a285d4e86c55e1 Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Wed, 25 Sep 2013 14:58:16 +0800
Subject: mtd: nand: add more comment for MTD_NANDFLASH/MTD_MLCNANDFLASH

In current code, the MTD_NANDFLASH is used to represent both the SLC and
MLC. It is confusing to us.

By adding an explicit comment about these two macros, this patch makes it
clear that:
	MTD_NANDFLASH    : stands for SLC NAND,
	MTD_MLCNANDFLASH : stands for MLC NAND (including TLC).

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 include/uapi/mtd/mtd-abi.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/uapi/mtd/mtd-abi.h b/include/uapi/mtd/mtd-abi.h
index 36eace03b2ac..e89b096856f8 100644
--- a/include/uapi/mtd/mtd-abi.h
+++ b/include/uapi/mtd/mtd-abi.h
@@ -94,10 +94,10 @@ struct mtd_write_req {
 #define MTD_RAM			1
 #define MTD_ROM			2
 #define MTD_NORFLASH		3
-#define MTD_NANDFLASH		4
+#define MTD_NANDFLASH		4	/* SLC NAND */
 #define MTD_DATAFLASH		6
 #define MTD_UBIVOLUME		7
-#define MTD_MLCNANDFLASH	8
+#define MTD_MLCNANDFLASH	8	/* MLC NAND (including TLC) */
 
 #define MTD_WRITEABLE		0x400	/* Device is writeable */
 #define MTD_BIT_WRITEABLE	0x800	/* Single bits can be flipped */
-- 
cgit 


From 818b97392932ac4cecc36ab839957258367004a9 Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Wed, 25 Sep 2013 14:58:17 +0800
Subject: mtd: nand: add a helper to detect the nand type

This helper detects that whether the mtd's type is nand type.

Now, it's clear that the MTD_NANDFLASH stands for SLC nand only.
So use the mtd_type_is_nand() to replace the old check method
to do the nand type (include the SLC and MLC) check.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/inftlcore.c         | 2 +-
 drivers/mtd/nftlcore.c          | 2 +-
 drivers/mtd/ssfdc.c             | 2 +-
 drivers/mtd/tests/nandbiterrs.c | 2 +-
 drivers/mtd/tests/oobtest.c     | 2 +-
 drivers/mtd/tests/pagetest.c    | 2 +-
 drivers/mtd/tests/subpagetest.c | 2 +-
 include/linux/mtd/mtd.h         | 5 +++++
 8 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/drivers/mtd/inftlcore.c b/drivers/mtd/inftlcore.c
index 3af351484098..b66b541877f0 100644
--- a/drivers/mtd/inftlcore.c
+++ b/drivers/mtd/inftlcore.c
@@ -50,7 +50,7 @@ static void inftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
 	struct INFTLrecord *inftl;
 	unsigned long temp;
 
-	if (mtd->type != MTD_NANDFLASH || mtd->size > UINT_MAX)
+	if (!mtd_type_is_nand(mtd) || mtd->size > UINT_MAX)
 		return;
 	/* OK, this is moderately ugly.  But probably safe.  Alternatives? */
 	if (memcmp(mtd->name, "DiskOnChip", 10))
diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c
index c5f4ebf4b384..46f27de018c3 100644
--- a/drivers/mtd/nftlcore.c
+++ b/drivers/mtd/nftlcore.c
@@ -50,7 +50,7 @@ static void nftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
 	struct NFTLrecord *nftl;
 	unsigned long temp;
 
-	if (mtd->type != MTD_NANDFLASH || mtd->size > UINT_MAX)
+	if (!mtd_type_is_nand(mtd) || mtd->size > UINT_MAX)
 		return;
 	/* OK, this is moderately ugly.  But probably safe.  Alternatives? */
 	if (memcmp(mtd->name, "DiskOnChip", 10))
diff --git a/drivers/mtd/ssfdc.c b/drivers/mtd/ssfdc.c
index ab2a52a039c3..daf82ba7aba0 100644
--- a/drivers/mtd/ssfdc.c
+++ b/drivers/mtd/ssfdc.c
@@ -290,7 +290,7 @@ static void ssfdcr_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
 	int cis_sector;
 
 	/* Check for small page NAND flash */
-	if (mtd->type != MTD_NANDFLASH || mtd->oobsize != OOB_SIZE ||
+	if (!mtd_type_is_nand(mtd) || mtd->oobsize != OOB_SIZE ||
 	    mtd->size > UINT_MAX)
 		return;
 
diff --git a/drivers/mtd/tests/nandbiterrs.c b/drivers/mtd/tests/nandbiterrs.c
index 3cd3aabbe1cd..6f976159611f 100644
--- a/drivers/mtd/tests/nandbiterrs.c
+++ b/drivers/mtd/tests/nandbiterrs.c
@@ -349,7 +349,7 @@ static int __init mtd_nandbiterrs_init(void)
 		goto exit_mtddev;
 	}
 
-	if (mtd->type != MTD_NANDFLASH) {
+	if (!mtd_type_is_nand(mtd)) {
 		pr_info("this test requires NAND flash\n");
 		err = -ENODEV;
 		goto exit_nand;
diff --git a/drivers/mtd/tests/oobtest.c b/drivers/mtd/tests/oobtest.c
index ff35c465bfee..2e9e2d11f204 100644
--- a/drivers/mtd/tests/oobtest.c
+++ b/drivers/mtd/tests/oobtest.c
@@ -289,7 +289,7 @@ static int __init mtd_oobtest_init(void)
 		return err;
 	}
 
-	if (mtd->type != MTD_NANDFLASH) {
+	if (!mtd_type_is_nand(mtd)) {
 		pr_info("this test requires NAND flash\n");
 		goto out;
 	}
diff --git a/drivers/mtd/tests/pagetest.c b/drivers/mtd/tests/pagetest.c
index 44b96e999ad4..ed2d3f656fd2 100644
--- a/drivers/mtd/tests/pagetest.c
+++ b/drivers/mtd/tests/pagetest.c
@@ -353,7 +353,7 @@ static int __init mtd_pagetest_init(void)
 		return err;
 	}
 
-	if (mtd->type != MTD_NANDFLASH) {
+	if (!mtd_type_is_nand(mtd)) {
 		pr_info("this test requires NAND flash\n");
 		goto out;
 	}
diff --git a/drivers/mtd/tests/subpagetest.c b/drivers/mtd/tests/subpagetest.c
index e2c0adf24cfc..a876371ad410 100644
--- a/drivers/mtd/tests/subpagetest.c
+++ b/drivers/mtd/tests/subpagetest.c
@@ -299,7 +299,7 @@ static int __init mtd_subpagetest_init(void)
 		return err;
 	}
 
-	if (mtd->type != MTD_NANDFLASH) {
+	if (!mtd_type_is_nand(mtd)) {
 		pr_info("this test requires NAND flash\n");
 		goto out;
 	}
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index f9bfe526d310..88409b813418 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -354,6 +354,11 @@ static inline int mtd_has_oob(const struct mtd_info *mtd)
 	return mtd->_read_oob && mtd->_write_oob;
 }
 
+static inline int mtd_type_is_nand(const struct mtd_info *mtd)
+{
+	return mtd->type == MTD_NANDFLASH || mtd->type == MTD_MLCNANDFLASH;
+}
+
 static inline int mtd_can_have_bb(const struct mtd_info *mtd)
 {
 	return !!mtd->_block_isbad;
-- 
cgit 


From 4f8a3ba700b882f61d4cea2d68a8f83fa93c6dfd Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Wed, 25 Sep 2013 14:58:18 +0800
Subject: mtd: mtd-abi: add a helper to detect the nand type

The helper is for user applications, and it is just a copy of
the kernel helper: mtd_type_is_nand();

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 include/uapi/mtd/mtd-abi.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/uapi/mtd/mtd-abi.h b/include/uapi/mtd/mtd-abi.h
index e89b096856f8..e272ea060e38 100644
--- a/include/uapi/mtd/mtd-abi.h
+++ b/include/uapi/mtd/mtd-abi.h
@@ -275,4 +275,9 @@ enum mtd_file_modes {
 	MTD_FILE_MODE_RAW,
 };
 
+static inline int mtd_type_is_nand_user(const struct mtd_info_user *mtd)
+{
+	return mtd->type == MTD_NANDFLASH || mtd->type == MTD_MLCNANDFLASH;
+}
+
 #endif /* __MTD_ABI_H__ */
-- 
cgit 


From f48372465ffdff62a6d75a6f34bc850855fb6470 Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Wed, 25 Sep 2013 14:58:19 +0800
Subject: mtd: add MTD_MLCNANDFLASH case for mtd_type_show()

The current mtd_type_show() misses the MTD_MLCNANDFLASH case.
This patch adds the case for it, and also updates the ABI.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 Documentation/ABI/testing/sysfs-class-mtd | 2 +-
 drivers/mtd/mtdcore.c                     | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/Documentation/ABI/testing/sysfs-class-mtd b/Documentation/ABI/testing/sysfs-class-mtd
index bfd119ace6ad..1399bb2da3eb 100644
--- a/Documentation/ABI/testing/sysfs-class-mtd
+++ b/Documentation/ABI/testing/sysfs-class-mtd
@@ -104,7 +104,7 @@ Description:
 		One of the following ASCII strings, representing the device
 		type:
 
-		absent, ram, rom, nor, nand, dataflash, ubi, unknown
+		absent, ram, rom, nor, nand, mlc-nand, dataflash, ubi, unknown
 
 What:		/sys/class/mtd/mtdX/writesize
 Date:		April 2009
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 5e14d540ba2f..92311a56939f 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -157,6 +157,9 @@ static ssize_t mtd_type_show(struct device *dev,
 	case MTD_UBIVOLUME:
 		type = "ubi";
 		break;
+	case MTD_MLCNANDFLASH:
+		type = "mlc-nand";
+		break;
 	default:
 		type = "unknown";
 	}
-- 
cgit 


From e104f1e9dab6726187810f5d9e06cadb946d4a61 Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Wed, 25 Sep 2013 14:58:20 +0800
Subject: jffs2: do not support the MLC nand

We should not support the MLC nand for jffs2. So if the nand type is
MLC, we quit immediatly.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 fs/jffs2/fs.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index fe3c0527545f..09b3ed455724 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -515,6 +515,10 @@ int jffs2_do_fill_super(struct super_block *sb, void *data, int silent)
 
 	c = JFFS2_SB_INFO(sb);
 
+	/* Do not support the MLC nand */
+	if (c->mtd->type == MTD_MLCNANDFLASH)
+		return -EINVAL;
+
 #ifndef CONFIG_JFFS2_FS_WRITEBUFFER
 	if (c->mtd->type == MTD_NANDFLASH) {
 		pr_err("Cannot operate on NAND flash unless jffs2 NAND support is compiled in\n");
-- 
cgit 


From 963d1c285fdf3b9ce93b575b879c1cba4a23d958 Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Wed, 25 Sep 2013 14:58:21 +0800
Subject: mtd: nand: fix the wrong mtd->type for nand chip

Current code sets the mtd->type with MTD_NANDFLASH for both
SLC and MLC. So the jffs2 may supports the MLC nand, but in actually,
the jffs2 should not support the MLC.

This patch uses the nand_is_slc() to check the nand cell type,
and set the mtd->type with the right nand type.

After this patch, the jffs2 only supports the SLC nand.

The side-effect of this patch:
  Before this patch, the ioctl(MEMGETINFO) can only return with the
  MTD_NANDFLASH; but after this patch, the ioctl(MEMGETINFO) will
  return with the MTD_NANDFLASH for SLC, and MTD_MLCNANDFLASH for MLC.

  So the user applictions(such as mtd-utils) should also changes a little
  for this.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/nand_base.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 55c80efb3081..848884473229 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -3785,7 +3785,7 @@ int nand_scan_tail(struct mtd_info *mtd)
 		chip->options |= NAND_SUBPAGE_READ;
 
 	/* Fill in remaining MTD driver data */
-	mtd->type = MTD_NANDFLASH;
+	mtd->type = nand_is_slc(chip) ? MTD_NANDFLASH : MTD_MLCNANDFLASH;
 	mtd->flags = (chip->options & NAND_ROM) ? MTD_CAP_ROM :
 						MTD_CAP_NANDFLASH;
 	mtd->_erase = nand_erase;
-- 
cgit 


From 14ac07856fee903879f11932e313695de8156e9c Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 14:42:52 +0900
Subject: mtd: plat-ram: Remove casting the return value which is a void
 pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/maps/plat-ram.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/maps/plat-ram.c b/drivers/mtd/maps/plat-ram.c
index 676271659b37..3e35b9a330c7 100644
--- a/drivers/mtd/maps/plat-ram.c
+++ b/drivers/mtd/maps/plat-ram.c
@@ -55,7 +55,7 @@ struct platram_info {
 
 static inline struct platram_info *to_platram_info(struct platform_device *dev)
 {
-	return (struct platram_info *)platform_get_drvdata(dev);
+	return platform_get_drvdata(dev);
 }
 
 /* platram_setrw
-- 
cgit 


From e6db7c8484187f8bf6012cbc700f7b62cdc809be Mon Sep 17 00:00:00 2001
From: Flavio Silveira <fggs@terra.com.br>
Date: Tue, 3 Sep 2013 20:25:54 -0300
Subject: mtd: m25p80: Add support for ESMT F25L32PA

This flashchip is used in D-Link DIR-610 A1 router board
and maybe several others, yet is not kernel upstream.

So add support for it according to datasheet [0], making it easier
to support other boards using this flashchip in the future.

[0] http://www.esmt.com.tw/DB/manager/upload/F25L32PA.pdf

Signed-off-by: Flavio Silveira <fggs@terra.com.br>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/devices/m25p80.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 6bc9618af094..fbc8e7308027 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -756,6 +756,9 @@ static const struct spi_device_id m25p_ids[] = {
 	{ "en25q64", INFO(0x1c3017, 0, 64 * 1024, 128, SECT_4K) },
 	{ "en25qh256", INFO(0x1c7019, 0, 64 * 1024, 512, 0) },
 
+	/* ESMT */
+	{ "f25l32pa", INFO(0x8c2016, 0, 64 * 1024, 64, SECT_4K) },
+
 	/* Everspin */
 	{ "mr25h256", CAT25_INFO(  32 * 1024, 1, 256, 2, M25P_NO_ERASE | M25P_NO_FR) },
 	{ "mr25h10", CAT25_INFO(128 * 1024, 1, 256, 3, M25P_NO_ERASE | M25P_NO_FR) },
-- 
cgit 


From 14a95b8a23133f1b21bb3e8b05d24d03ab5722c0 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 12 Aug 2013 15:10:47 +0530
Subject: mtd: diskonchip: Fix incorrect placement of __initdata

__initdata should be placed between the variable name and equal
sign for the variable to be placed in the intended section.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/diskonchip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c
index eaa3c29ad860..b68a4959f700 100644
--- a/drivers/mtd/nand/diskonchip.c
+++ b/drivers/mtd/nand/diskonchip.c
@@ -38,7 +38,7 @@
 #define CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADDRESS 0
 #endif
 
-static unsigned long __initdata doc_locations[] = {
+static unsigned long doc_locations[] __initdata = {
 #if defined (__alpha__) || defined(__i386__) || defined(__x86_64__)
 #ifdef CONFIG_MTD_NAND_DISKONCHIP_PROBE_HIGH
 	0xfffc8000, 0xfffca000, 0xfffcc000, 0xfffce000,
-- 
cgit 


From 1f933fa81652efe2069df2565ffdd83f59e99e01 Mon Sep 17 00:00:00 2001
From: Valentina Manea <valentina.manea.m@gmail.com>
Date: Wed, 23 Oct 2013 10:29:55 +0300
Subject: staging: drm/imx: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO

This patch fixes coccinelle error regarding usage of IS_ERR and
PTR_ERR instead of PTR_ERR_OR_ZERO.

Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/imx-drm/imx-ldb.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/staging/imx-drm/imx-ldb.c b/drivers/staging/imx-drm/imx-ldb.c
index 926f49339b26..654bf03e05ff 100644
--- a/drivers/staging/imx-drm/imx-ldb.c
+++ b/drivers/staging/imx-drm/imx-ldb.c
@@ -359,10 +359,8 @@ static int imx_ldb_get_clk(struct imx_ldb *ldb, int chno)
 
 	sprintf(clkname, "di%d_pll", chno);
 	ldb->clk_pll[chno] = devm_clk_get(ldb->dev, clkname);
-	if (IS_ERR(ldb->clk_pll[chno]))
-		return PTR_ERR(ldb->clk_pll[chno]);
 
-	return 0;
+	return PTR_ERR_OR_ZERO(ldb->clk_pll[chno]);
 }
 
 static int imx_ldb_register(struct imx_ldb_channel *imx_ldb_ch)
-- 
cgit 


From 1f5586475dfac0c2ca79c4c63fb281992165c51c Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Wed, 23 Oct 2013 01:15:26 +0300
Subject: staging: gdm724x: kzalloc should be used instead of kmalloc/memset

This patch fixes the following coccinelle warnings in driver gdm724x:

drivers/staging/gdm724x/gdm_usb.c:127:9-16: WARNING: kzalloc should be used for t_sdu, instead of kmalloc/memset
drivers/staging/gdm724x/gdm_usb.c:91:5-12: WARNING: kzalloc should be used for t, instead of kmalloc/memset

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/gdm724x/gdm_usb.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/gdm724x/gdm_usb.c b/drivers/staging/gdm724x/gdm_usb.c
index bdc96370e430..781134af69d1 100644
--- a/drivers/staging/gdm724x/gdm_usb.c
+++ b/drivers/staging/gdm724x/gdm_usb.c
@@ -88,12 +88,11 @@ static struct usb_tx *alloc_tx_struct(int len)
 	struct usb_tx *t = NULL;
 	int ret = 0;
 
-	t = kmalloc(sizeof(struct usb_tx), GFP_ATOMIC);
+	t = kzalloc(sizeof(struct usb_tx), GFP_ATOMIC);
 	if (!t) {
 		ret = -ENOMEM;
 		goto out;
 	}
-	memset(t, 0, sizeof(struct usb_tx));
 
 	t->urb = usb_alloc_urb(0, GFP_ATOMIC);
 	if (!(len % 512))
@@ -124,12 +123,11 @@ static struct usb_tx_sdu *alloc_tx_sdu_struct(void)
 	int ret = 0;
 
 
-	t_sdu = kmalloc(sizeof(struct usb_tx_sdu), GFP_ATOMIC);
+	t_sdu = kzalloc(sizeof(struct usb_tx_sdu), GFP_ATOMIC);
 	if (!t_sdu) {
 		ret = -ENOMEM;
 		goto out;
 	}
-	memset(t_sdu, 0, sizeof(struct usb_tx_sdu));
 
 	t_sdu->buf = kmalloc(SDU_BUF_SIZE, GFP_ATOMIC);
 	if (!t_sdu->buf) {
-- 
cgit 


From 6a123705d8eb121b648b5c436fa4d6ccfcd152ee Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Sun, 27 Oct 2013 17:55:05 -0700
Subject: staging: lustre: lnet: Rewrite return statement in socklnd.c

Rewrite the return statement in socklnd.c to eliminate the
use of a ternary operator. This will prevent the checkpatch.pl
script from generating a warning saying to remove () from
this particular return statement.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c
index 6825b452e5fe..2ddc3aadb8d6 100644
--- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c
+++ b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.c
@@ -1768,7 +1768,10 @@ ksocknal_close_matching_conns (lnet_process_id_t id, __u32 ipaddr)
 	if (id.nid == LNET_NID_ANY || id.pid == LNET_PID_ANY || ipaddr == 0)
 		return (0);
 
-	return (count == 0 ? -ENOENT : 0);
+	if (count == 0)
+		return -ENOENT;
+	else
+		return 0;
 }
 
 void
-- 
cgit 


From 6dfd609b4d08519185ace2878871710a92a520c3 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Mon, 28 Oct 2013 00:58:02 +0200
Subject: Staging: vt6656: Fix Sparse Warning: cast from restricted gfp_t in
 hostap.c

This patch fixes the following type of sparse warnings:

drivers/staging/vt6656/hostap.c:688:42: warning: cast from restricted gfp_t
drivers/staging/vt6656/hostap.c:688:42: warning: incorrect type in argument 2 (different base types)
drivers/staging/vt6656/hostap.c:688:42: expected restricted gfp_t [usertype] flags
drivers/staging/vt6656/hostap.c:688:42: got int [signed] <noident>

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/hostap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/vt6656/hostap.c b/drivers/staging/vt6656/hostap.c
index 7d96fe7a3e41..ae1676d190c5 100644
--- a/drivers/staging/vt6656/hostap.c
+++ b/drivers/staging/vt6656/hostap.c
@@ -685,7 +685,7 @@ int vt6656_hostap_ioctl(struct vnt_private *pDevice, struct iw_point *p)
 	    p->length > VIAWGET_HOSTAPD_MAX_BUF_SIZE || !p->pointer)
 		return -EINVAL;
 
-	param = kmalloc((int)p->length, (int)GFP_KERNEL);
+	param = kmalloc((int)p->length, GFP_KERNEL);
 	if (param == NULL)
 		return -ENOMEM;
 
-- 
cgit 


From f27d2be41d78d6b0f51721efdd5413f47ceeb379 Mon Sep 17 00:00:00 2001
From: Johannes Löthberg <johannes@kyriasis.com>
Date: Sun, 27 Oct 2013 22:02:09 +0100
Subject: Staging: vt6656: fix code indenting error in power.c
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This patch fixes a code indentation error found by checkpatch.pl
where a line was indented with spaces instead of tabs

Signed-off-by: Johannes Löthberg <johannes@kyriasis.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/power.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/vt6656/power.c b/drivers/staging/vt6656/power.c
index af07984436bb..e7d5487d1041 100644
--- a/drivers/staging/vt6656/power.c
+++ b/drivers/staging/vt6656/power.c
@@ -266,7 +266,7 @@ int PSbSendNullPacket(struct vnt_private *pDevice)
 		+ sizeof(struct vnt_tx_mgmt));
 
 	flags = WLAN_SET_FC_FTYPE(WLAN_TYPE_DATA) |
-                        WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_NULL);
+			WLAN_SET_FC_FSTYPE(WLAN_FSTYPE_NULL);
 
 	if (pDevice->bEnablePSMode)
 		flags |= WLAN_SET_FC_PWRMGT(1);
-- 
cgit 


From afd4dfbc0630e01d290650310bfcc25bd82a23db Mon Sep 17 00:00:00 2001
From: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Date: Sun, 27 Oct 2013 23:37:15 +0530
Subject: staging: vt6656: removed space after '*' in pointer declaration

space after '*' in pointer declaration is not preferred in linux
and results in checkpatch error. Hence removed the spaces present
after the '*' in pointer declarations to fix the checkpatch errors

Signed-off-by: Nandini Hanumanthagowda <nandu.hgowda@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/aes_ccmp.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/vt6656/aes_ccmp.c b/drivers/staging/vt6656/aes_ccmp.c
index 28a4c4c30416..6c7693911cd6 100644
--- a/drivers/staging/vt6656/aes_ccmp.c
+++ b/drivers/staging/vt6656/aes_ccmp.c
@@ -96,9 +96,9 @@ u8 dot3_table[256] = {
 
 static void xor_128(u8 *a, u8 *b, u8 *out)
 {
-	u32 * dwPtrA = (u32 *) a;
-	u32 * dwPtrB = (u32 *) b;
-	u32 * dwPtrOut = (u32 *) out;
+	u32 *dwPtrA = (u32 *) a;
+	u32 *dwPtrB = (u32 *) b;
+	u32 *dwPtrOut = (u32 *) out;
 
 	(*dwPtrOut++) = (*dwPtrA++) ^ (*dwPtrB++);
 	(*dwPtrOut++) = (*dwPtrA++) ^ (*dwPtrB++);
@@ -108,9 +108,9 @@ static void xor_128(u8 *a, u8 *b, u8 *out)
 
 static void xor_32(u8 *a, u8 *b, u8 *out)
 {
-	u32 * dwPtrA = (u32 *) a;
-	u32 * dwPtrB = (u32 *) b;
-	u32 * dwPtrOut = (u32 *) out;
+	u32 *dwPtrA = (u32 *) a;
+	u32 *dwPtrB = (u32 *) b;
+	u32 *dwPtrOut = (u32 *) out;
 
 	(*dwPtrOut++) = (*dwPtrA++) ^ (*dwPtrB++);
 }
@@ -218,7 +218,7 @@ void AESv128(u8 *key, u8 *data, u8 *ciphertext)
  *
  */
 
-bool AESbGenCCMP(u8 * pbyRxKey, u8 * pbyFrame, u16 wFrameSize)
+bool AESbGenCCMP(u8 *pbyRxKey, u8 *pbyFrame, u16 wFrameSize)
 {
 	u8            abyNonce[13];
 	u8            MIC_IV[16];
@@ -231,8 +231,8 @@ bool AESbGenCCMP(u8 * pbyRxKey, u8 * pbyFrame, u16 wFrameSize)
 	u8            abyLastCipher[16];
 
 	struct ieee80211_hdr *pMACHeader = (struct ieee80211_hdr *) pbyFrame;
-	u8 *           pbyIV;
-	u8 *           pbyPayload;
+	u8 *pbyIV;
+	u8 *pbyPayload;
 	u16            wHLen = 22;
 	/* 8 is IV, 8 is MIC, 4 is CRC */
 	u16            wPayloadSize = wFrameSize - 8 - 8 - 4 - WLAN_HDR_ADDR3_LEN;
-- 
cgit 


From 5a083bda90bc391dd4eedb3ebf737970cbbc7baf Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sat, 26 Oct 2013 17:12:57 +0530
Subject: Staging: line6: Fix Sparse warning of restricted __le16 degrades to
 integer

This patch fixes the following sparse warning in driver.c-
warning: restricted __le16 degrades to integer

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/line6/driver.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/line6/driver.c b/drivers/staging/line6/driver.c
index ee1799056b48..cc5d62d2b01f 100644
--- a/drivers/staging/line6/driver.c
+++ b/drivers/staging/line6/driver.c
@@ -340,7 +340,7 @@ static void line6_data_received(struct urb *urb)
 		line6->message_length = done;
 		line6_midi_receive(line6, line6->buffer_message, done);
 
-		switch (line6->usbdev->descriptor.idProduct) {
+		switch (le16_to_cpu(line6->usbdev->descriptor.idProduct)) {
 		case LINE6_DEVID_BASSPODXT:
 		case LINE6_DEVID_BASSPODXTLIVE:
 		case LINE6_DEVID_BASSPODXTPRO:
@@ -1010,7 +1010,7 @@ static void line6_disconnect(struct usb_interface *interface)
 			dev_err(line6->ifcdev,
 				"driver bug: inconsistent usb device\n");
 
-		switch (line6->usbdev->descriptor.idProduct) {
+		switch (le16_to_cpu(line6->usbdev->descriptor.idProduct)) {
 		case LINE6_DEVID_BASSPODXT:
 		case LINE6_DEVID_BASSPODXTLIVE:
 		case LINE6_DEVID_BASSPODXTPRO:
@@ -1114,7 +1114,7 @@ static int line6_reset_resume(struct usb_interface *interface)
 {
 	struct usb_line6 *line6 = usb_get_intfdata(interface);
 
-	switch (line6->usbdev->descriptor.idProduct) {
+	switch (le16_to_cpu(line6->usbdev->descriptor.idProduct)) {
 	case LINE6_DEVID_PODSTUDIO_GX:
 	case LINE6_DEVID_PODSTUDIO_UX1:
 	case LINE6_DEVID_PODSTUDIO_UX2:
-- 
cgit 


From f3912ce33617d963dad2eba494c804ead5e28de4 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sat, 26 Oct 2013 17:13:54 +0530
Subject: Staging: line6: Fix Sparse Warning of restricted __le16 degrades to
 integer

This patch fixes the following sparse warning in toneport.c-
warning: restricted __le16 degrades to integer

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/line6/toneport.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/line6/toneport.c b/drivers/staging/line6/toneport.c
index 776d3632dc7d..7bca1e2fedcb 100644
--- a/drivers/staging/line6/toneport.c
+++ b/drivers/staging/line6/toneport.c
@@ -316,7 +316,7 @@ static void toneport_setup(struct usb_line6_toneport *toneport)
 	toneport_send_cmd(usbdev, 0x0301, 0x0000);
 
 	/* initialize source select: */
-	switch (usbdev->descriptor.idProduct) {
+	switch (le16_to_cpu(usbdev->descriptor.idProduct)) {
 	case LINE6_DEVID_TONEPORT_UX1:
 	case LINE6_DEVID_TONEPORT_UX2:
 	case LINE6_DEVID_PODSTUDIO_UX1:
@@ -361,7 +361,7 @@ static int toneport_try_init(struct usb_interface *interface,
 		return err;
 
 	/* register source select control: */
-	switch (usbdev->descriptor.idProduct) {
+	switch (le16_to_cpu(usbdev->descriptor.idProduct)) {
 	case LINE6_DEVID_TONEPORT_UX1:
 	case LINE6_DEVID_TONEPORT_UX2:
 	case LINE6_DEVID_PODSTUDIO_UX1:
-- 
cgit 


From c0fa05f3dec43d859d12f00d2843c770a12eef30 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sat, 26 Oct 2013 17:15:21 +0530
Subject: Staging: line6: Fix Sparse Warning of incorrect type

This patch fixes the following sparse warnings in toneport.c-

drivers/staging/line6/toneport.c:329:48: warning: incorrect type in argument 1 (different base types)
drivers/staging/line6/toneport.c:329:48:    expected short [signed] product
drivers/staging/line6/toneport.c:329:48:    got restricted __le16 [usertype] idProduct
drivers/staging/line6/toneport.c:385:48: warning: incorrect type in argument 1 (different base types)
drivers/staging/line6/toneport.c:385:48:    expected short [signed] product
drivers/staging/line6/toneport.c:385:48:    got restricted __le16 [usertype] idProduct
drivers/staging/line6/toneport.c:438:64: warning: incorrect type in argument 1 (different base types)
drivers/staging/line6/toneport.c:438:64:    expected short [signed] product
drivers/staging/line6/toneport.c:438:64:    got restricted __le16 [usertype] idProduct

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/line6/toneport.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/line6/toneport.c b/drivers/staging/line6/toneport.c
index 7bca1e2fedcb..af2e7e50c135 100644
--- a/drivers/staging/line6/toneport.c
+++ b/drivers/staging/line6/toneport.c
@@ -307,6 +307,7 @@ static void toneport_setup(struct usb_line6_toneport *toneport)
 	int ticks;
 	struct usb_line6 *line6 = &toneport->line6;
 	struct usb_device *usbdev = line6->usbdev;
+	u16 idProduct = le16_to_cpu(usbdev->descriptor.idProduct);
 
 	/* sync time on device with host: */
 	ticks = (int)get_seconds();
@@ -326,7 +327,7 @@ static void toneport_setup(struct usb_line6_toneport *toneport)
 				  0x0000);
 	}
 
-	if (toneport_has_led(usbdev->descriptor.idProduct))
+	if (toneport_has_led(idProduct))
 		toneport_update_led(&usbdev->dev);
 }
 
@@ -339,6 +340,7 @@ static int toneport_try_init(struct usb_interface *interface,
 	int err;
 	struct usb_line6 *line6 = &toneport->line6;
 	struct usb_device *usbdev = line6->usbdev;
+	u16 idProduct = le16_to_cpu(usbdev->descriptor.idProduct);
 
 	if ((interface == NULL) || (toneport == NULL))
 		return -ENODEV;
@@ -382,7 +384,7 @@ static int toneport_try_init(struct usb_interface *interface,
 	line6_read_serial_number(line6, &toneport->serial_number);
 	line6_read_data(line6, 0x80c2, &toneport->firmware_version, 1);
 
-	if (toneport_has_led(usbdev->descriptor.idProduct)) {
+	if (toneport_has_led(idProduct)) {
 		CHECK_RETURN(device_create_file
 			     (&interface->dev, &dev_attr_led_red));
 		CHECK_RETURN(device_create_file
@@ -428,14 +430,16 @@ void line6_toneport_reset_resume(struct usb_line6_toneport *toneport)
 void line6_toneport_disconnect(struct usb_interface *interface)
 {
 	struct usb_line6_toneport *toneport;
+	u16 idProduct;
 
 	if (interface == NULL)
 		return;
 
 	toneport = usb_get_intfdata(interface);
 	del_timer_sync(&toneport->timer);
+	idProduct = le16_to_cpu(toneport->line6.usbdev->descriptor.idProduct);
 
-	if (toneport_has_led(toneport->line6.usbdev->descriptor.idProduct)) {
+	if (toneport_has_led(idProduct)) {
 		device_remove_file(&interface->dev, &dev_attr_led_red);
 		device_remove_file(&interface->dev, &dev_attr_led_green);
 	}
-- 
cgit 


From 156d52cac6e04412d6c06be5fb6fda7270ffa190 Mon Sep 17 00:00:00 2001
From: Archana kumari <archanakumari959@gmail.com>
Date: Wed, 23 Oct 2013 20:13:42 +0530
Subject: staging: rts5139: Replaced min() with min_t() in

This patch replaces min() with min_t() in rts51x_scsi.c

Signed-off-by: Archana kumari <archanakumari959@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rts5139/rts51x_scsi.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/rts5139/rts51x_scsi.c b/drivers/staging/rts5139/rts51x_scsi.c
index 610870546406..a474eede70a3 100644
--- a/drivers/staging/rts5139/rts51x_scsi.c
+++ b/drivers/staging/rts5139/rts51x_scsi.c
@@ -973,7 +973,7 @@ static int get_dev_status(struct scsi_cmnd *srb, struct rts51x_chip *chip)
 
 	rts51x_pp_status(chip, lun, status, 32);
 
-	buf_len = min(scsi_bufflen(srb), (unsigned int)sizeof(status));
+	buf_len = min_t(unsigned int, scsi_bufflen(srb), sizeof(status));
 	rts51x_set_xfer_buf(status, buf_len, srb);
 	scsi_set_resid(srb, scsi_bufflen(srb) - buf_len);
 
@@ -988,7 +988,7 @@ static int read_status(struct scsi_cmnd *srb, struct rts51x_chip *chip)
 
 	rts51x_read_status(chip, lun, rts51x_status, 16);
 
-	buf_len = min(scsi_bufflen(srb), (unsigned int)sizeof(rts51x_status));
+	buf_len = min_t(unsigned int, scsi_bufflen(srb), sizeof(rts51x_status));
 	rts51x_set_xfer_buf(rts51x_status, buf_len, srb);
 	scsi_set_resid(srb, scsi_bufflen(srb) - buf_len);
 
-- 
cgit 


From 30bb0e7182c155a0f6728e2e33febd975270be22 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Wed, 23 Oct 2013 02:00:22 +0300
Subject: Staging:line6: fix line over 80 characters

Fix checkpatch.pl issues with line over 80 characters
in playback.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/line6/playback.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/line6/playback.c b/drivers/staging/line6/playback.c
index f9135c7cb195..41869caf19a7 100644
--- a/drivers/staging/line6/playback.c
+++ b/drivers/staging/line6/playback.c
@@ -242,13 +242,14 @@ static int submit_audio_out_urb(struct snd_line6_pcm *line6pcm)
 		if (line6pcm->flags & LINE6_BITS_PCM_IMPULSE) {
 			create_impulse_test_signal(line6pcm, urb_out,
 						   bytes_per_frame);
-			if (line6pcm->flags & LINE6_BIT_PCM_ALSA_CAPTURE_STREAM) {
+			if (line6pcm->flags &
+			    LINE6_BIT_PCM_ALSA_CAPTURE_STREAM) {
 				line6_capture_copy(line6pcm,
 						   urb_out->transfer_buffer,
 						   urb_out->
 						   transfer_buffer_length);
 				line6_capture_check_period(line6pcm,
-							   urb_out->transfer_buffer_length);
+					urb_out->transfer_buffer_length);
 			}
 		} else {
 #endif
-- 
cgit 


From 1f2cd845d3827412e82bf26dde0abca332ede402 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Mon, 28 Oct 2013 00:11:22 -0400
Subject: Revert "Merge branch 'bonding_monitor_locking'"

This reverts commit 4d961a101e032b4bf223b279b4b35bc77576f5a8, reversing
changes made to a00f6fcc7d0c62a91768d9c4ccba4c7d64fbbce3.

Revert bond locking changes, they cause regressions and Veaceslav Falico
doesn't like how the commit messages were done at all.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_3ad.c  |   9 ++--
 drivers/net/bonding/bond_alb.c  |  20 ++++++--
 drivers/net/bonding/bond_main.c | 100 +++++++++++++++++++++++++++-------------
 3 files changed, 89 insertions(+), 40 deletions(-)

diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index d6fe00bf4858..187b1b7772ef 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -2068,10 +2068,8 @@ void bond_3ad_state_machine_handler(struct work_struct *work)
 	struct slave *slave;
 	struct port *port;
 
-	if (!rtnl_trylock()) {
-		queue_delayed_work(bond->wq, &bond->ad_work, ad_delta_in_ticks);
-		return;
-	}
+	read_lock(&bond->lock);
+
 	//check if there are any slaves
 	if (!bond_has_slaves(bond))
 		goto re_arm;
@@ -2124,8 +2122,9 @@ void bond_3ad_state_machine_handler(struct work_struct *work)
 	}
 
 re_arm:
-	rtnl_unlock();
 	queue_delayed_work(bond->wq, &bond->ad_work, ad_delta_in_ticks);
+
+	read_unlock(&bond->lock);
 }
 
 /**
diff --git a/drivers/net/bonding/bond_alb.c b/drivers/net/bonding/bond_alb.c
index 5d79f5e529e0..02872405d35d 100644
--- a/drivers/net/bonding/bond_alb.c
+++ b/drivers/net/bonding/bond_alb.c
@@ -1495,13 +1495,11 @@ void bond_alb_monitor(struct work_struct *work)
 	struct list_head *iter;
 	struct slave *slave;
 
-	if (!rtnl_trylock())
-		goto re_arm;
+	read_lock(&bond->lock);
 
 	if (!bond_has_slaves(bond)) {
 		bond_info->tx_rebalance_counter = 0;
 		bond_info->lp_counter = 0;
-		rtnl_unlock();
 		goto re_arm;
 	}
 
@@ -1550,6 +1548,16 @@ void bond_alb_monitor(struct work_struct *work)
 		if (bond_info->primary_is_promisc &&
 		    (++bond_info->rlb_promisc_timeout_counter >= RLB_PROMISC_TIMEOUT)) {
 
+			/*
+			 * dev_set_promiscuity requires rtnl and
+			 * nothing else.  Avoid race with bond_close.
+			 */
+			read_unlock(&bond->lock);
+			if (!rtnl_trylock()) {
+				read_lock(&bond->lock);
+				goto re_arm;
+			}
+
 			bond_info->rlb_promisc_timeout_counter = 0;
 
 			/* If the primary was set to promiscuous mode
@@ -1558,6 +1566,9 @@ void bond_alb_monitor(struct work_struct *work)
 			 */
 			dev_set_promiscuity(bond->curr_active_slave->dev, -1);
 			bond_info->primary_is_promisc = 0;
+
+			rtnl_unlock();
+			read_lock(&bond->lock);
 		}
 
 		if (bond_info->rlb_rebalance) {
@@ -1580,9 +1591,10 @@ void bond_alb_monitor(struct work_struct *work)
 		}
 	}
 
-	rtnl_unlock();
 re_arm:
 	queue_delayed_work(bond->wq, &bond->alb_work, alb_delta_in_ticks);
+
+	read_unlock(&bond->lock);
 }
 
 /* assumption: called before the slave is attached to the bond
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 535570ea8bbc..a141f406cb98 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2118,29 +2118,49 @@ void bond_mii_monitor(struct work_struct *work)
 	struct bonding *bond = container_of(work, struct bonding,
 					    mii_work.work);
 	bool should_notify_peers = false;
+	unsigned long delay;
 
-	if (!rtnl_trylock())
-		goto re_arm;
+	read_lock(&bond->lock);
 
-	if (!bond_has_slaves(bond)) {
-		rtnl_unlock();
+	delay = msecs_to_jiffies(bond->params.miimon);
+
+	if (!bond_has_slaves(bond))
 		goto re_arm;
-	}
 
 	should_notify_peers = bond_should_notify_peers(bond);
 
-	if (bond_miimon_inspect(bond))
-		bond_miimon_commit(bond);
+	if (bond_miimon_inspect(bond)) {
+		read_unlock(&bond->lock);
 
-	if (should_notify_peers)
-		call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, bond->dev);
+		/* Race avoidance with bond_close cancel of workqueue */
+		if (!rtnl_trylock()) {
+			read_lock(&bond->lock);
+			delay = 1;
+			should_notify_peers = false;
+			goto re_arm;
+		}
 
-	rtnl_unlock();
+		read_lock(&bond->lock);
+
+		bond_miimon_commit(bond);
+
+		read_unlock(&bond->lock);
+		rtnl_unlock();	/* might sleep, hold no other locks */
+		read_lock(&bond->lock);
+	}
 
 re_arm:
 	if (bond->params.miimon)
-		queue_delayed_work(bond->wq, &bond->mii_work,
-				msecs_to_jiffies(bond->params.miimon));
+		queue_delayed_work(bond->wq, &bond->mii_work, delay);
+
+	read_unlock(&bond->lock);
+
+	if (should_notify_peers) {
+		if (!rtnl_trylock())
+			return;
+		call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, bond->dev);
+		rtnl_unlock();
+	}
 }
 
 static bool bond_has_this_ip(struct bonding *bond, __be32 ip)
@@ -2396,13 +2416,10 @@ void bond_loadbalance_arp_mon(struct work_struct *work)
 	struct list_head *iter;
 	int do_failover = 0;
 
-	if (!rtnl_trylock())
-		goto re_arm;
+	read_lock(&bond->lock);
 
-	if (!bond_has_slaves(bond)) {
-		rtnl_unlock();
+	if (!bond_has_slaves(bond))
 		goto re_arm;
-	}
 
 	oldcurrent = bond->curr_active_slave;
 	/* see if any of the previous devices are up now (i.e. they have
@@ -2484,12 +2501,13 @@ void bond_loadbalance_arp_mon(struct work_struct *work)
 		write_unlock_bh(&bond->curr_slave_lock);
 		unblock_netpoll_tx();
 	}
-	rtnl_unlock();
 
 re_arm:
 	if (bond->params.arp_interval)
 		queue_delayed_work(bond->wq, &bond->arp_work,
 				   msecs_to_jiffies(bond->params.arp_interval));
+
+	read_unlock(&bond->lock);
 }
 
 /*
@@ -2726,31 +2744,51 @@ void bond_activebackup_arp_mon(struct work_struct *work)
 	struct bonding *bond = container_of(work, struct bonding,
 					    arp_work.work);
 	bool should_notify_peers = false;
+	int delta_in_ticks;
 
-	if (!rtnl_trylock())
-		goto re_arm;
+	read_lock(&bond->lock);
 
-	if (!bond_has_slaves(bond)) {
-		rtnl_unlock();
+	delta_in_ticks = msecs_to_jiffies(bond->params.arp_interval);
+
+	if (!bond_has_slaves(bond))
 		goto re_arm;
-	}
 
 	should_notify_peers = bond_should_notify_peers(bond);
 
-	if (bond_ab_arp_inspect(bond))
-		bond_ab_arp_commit(bond);
+	if (bond_ab_arp_inspect(bond)) {
+		read_unlock(&bond->lock);
 
-	bond_ab_arp_probe(bond);
+		/* Race avoidance with bond_close flush of workqueue */
+		if (!rtnl_trylock()) {
+			read_lock(&bond->lock);
+			delta_in_ticks = 1;
+			should_notify_peers = false;
+			goto re_arm;
+		}
 
-	if (should_notify_peers)
-		call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, bond->dev);
+		read_lock(&bond->lock);
 
-	rtnl_unlock();
+		bond_ab_arp_commit(bond);
+
+		read_unlock(&bond->lock);
+		rtnl_unlock();
+		read_lock(&bond->lock);
+	}
+
+	bond_ab_arp_probe(bond);
 
 re_arm:
 	if (bond->params.arp_interval)
-		queue_delayed_work(bond->wq, &bond->arp_work,
-				msecs_to_jiffies(bond->params.arp_interval));
+		queue_delayed_work(bond->wq, &bond->arp_work, delta_in_ticks);
+
+	read_unlock(&bond->lock);
+
+	if (should_notify_peers) {
+		if (!rtnl_trylock())
+			return;
+		call_netdevice_notifiers(NETDEV_NOTIFY_PEERS, bond->dev);
+		rtnl_unlock();
+	}
 }
 
 /*-------------------------- netdev event handling --------------------------*/
-- 
cgit 


From fc59d5bdf1e3dca0336d155e55d812286db075ad Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sun, 27 Oct 2013 16:26:43 -0700
Subject: pkt_sched: fq: clear time_next_packet for reused flows

When a socket is freed/reallocated, we need to clear time_next_packet
or else we can inherit a prior value and delay first packets of the
new flow.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sched/sch_fq.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/sched/sch_fq.c b/net/sched/sch_fq.c
index a9dfdda9ed1d..fdc041c57853 100644
--- a/net/sched/sch_fq.c
+++ b/net/sched/sch_fq.c
@@ -255,6 +255,7 @@ static struct fq_flow *fq_classify(struct sk_buff *skb, struct fq_sched_data *q)
 				     f->socket_hash != sk->sk_hash)) {
 				f->credit = q->initial_quantum;
 				f->socket_hash = sk->sk_hash;
+				f->time_next_packet = 0ULL;
 			}
 			return f;
 		}
-- 
cgit 


From 8c3a897bfab10f68f90252440bb29e6749a7312a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sun, 27 Oct 2013 18:18:16 -0700
Subject: inet: restore gso for vxlan

Alexei reported a performance regression on vxlan, caused
by commit 3347c9602955 "ipv4: gso: make inet_gso_segment() stackable"

GSO vxlan packets were not properly segmented, adding IP fragments
while they were not expected.

Rename 'bool tunnel' to 'bool encap', and add a new boolean
to express the fact that UDP should be fragmented.
This fragmentation is triggered by skb->encapsulation being set.

Remove a "skb->encapsulation = 1" added in above commit,
as its not needed, as frags inherit skb->frag from original
GSO skb.

Reported-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Tested-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/af_inet.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index f4a159e705c0..09d78d4a3cff 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1251,8 +1251,8 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb,
 	struct sk_buff *segs = ERR_PTR(-EINVAL);
 	const struct net_offload *ops;
 	unsigned int offset = 0;
+	bool udpfrag, encap;
 	struct iphdr *iph;
-	bool tunnel;
 	int proto;
 	int nhoff;
 	int ihl;
@@ -1290,8 +1290,8 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb,
 		goto out;
 	__skb_pull(skb, ihl);
 
-	tunnel = SKB_GSO_CB(skb)->encap_level > 0;
-	if (tunnel)
+	encap = SKB_GSO_CB(skb)->encap_level > 0;
+	if (encap)
 		features = skb->dev->hw_enc_features & netif_skb_features(skb);
 	SKB_GSO_CB(skb)->encap_level += ihl;
 
@@ -1306,24 +1306,23 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb,
 	if (IS_ERR_OR_NULL(segs))
 		goto out;
 
+	udpfrag = !!skb->encapsulation && proto == IPPROTO_UDP;
 	skb = segs;
 	do {
 		iph = (struct iphdr *)(skb_mac_header(skb) + nhoff);
-		if (!tunnel && proto == IPPROTO_UDP) {
+		if (udpfrag) {
 			iph->id = htons(id);
 			iph->frag_off = htons(offset >> 3);
 			if (skb->next != NULL)
 				iph->frag_off |= htons(IP_MF);
 			offset += skb->len - nhoff - ihl;
-		} else  {
+		} else {
 			iph->id = htons(id++);
 		}
 		iph->tot_len = htons(skb->len - nhoff);
 		ip_send_check(iph);
-		if (tunnel) {
+		if (encap)
 			skb_reset_inner_headers(skb);
-			skb->encapsulation = 1;
-		}
 		skb->network_header = (u8 *)iph - skb->head;
 	} while ((skb = skb->next));
 
-- 
cgit 


From 4625d6aac2d00a18f7bcc15bffe41e9de3a25332 Mon Sep 17 00:00:00 2001
From: Changman Lee <cm224.lee@samsung.com>
Date: Fri, 25 Oct 2013 17:31:57 +0900
Subject: f2fs: remove unnecessary segment bitmap updates

Only one dirty type is set in __locate_dirty_segment and we can know
dirty type of segment. So we don't need to check other dirty types.

Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/segment.c | 31 ++++++++-----------------------
 1 file changed, 8 insertions(+), 23 deletions(-)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 487af619aeda..8f92c18a01fb 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -58,20 +58,10 @@ static void __locate_dirty_segment(struct f2fs_sb_info *sbi, unsigned int segno,
 
 	if (dirty_type == DIRTY) {
 		struct seg_entry *sentry = get_seg_entry(sbi, segno);
-		enum dirty_type t = DIRTY_HOT_DATA;
+		enum dirty_type t = sentry->type;
 
-		dirty_type = sentry->type;
-
-		if (!test_and_set_bit(segno, dirty_i->dirty_segmap[dirty_type]))
-			dirty_i->nr_dirty[dirty_type]++;
-
-		/* Only one bitmap should be set */
-		for (; t <= DIRTY_COLD_NODE; t++) {
-			if (t == dirty_type)
-				continue;
-			if (test_and_clear_bit(segno, dirty_i->dirty_segmap[t]))
-				dirty_i->nr_dirty[t]--;
-		}
+		if (!test_and_set_bit(segno, dirty_i->dirty_segmap[t]))
+			dirty_i->nr_dirty[t]++;
 	}
 }
 
@@ -84,16 +74,11 @@ static void __remove_dirty_segment(struct f2fs_sb_info *sbi, unsigned int segno,
 		dirty_i->nr_dirty[dirty_type]--;
 
 	if (dirty_type == DIRTY) {
-		enum dirty_type t = DIRTY_HOT_DATA;
-
-		/* clear its dirty bitmap */
-		for (; t <= DIRTY_COLD_NODE; t++) {
-			if (test_and_clear_bit(segno,
-						dirty_i->dirty_segmap[t])) {
-				dirty_i->nr_dirty[t]--;
-				break;
-			}
-		}
+		struct seg_entry *sentry = get_seg_entry(sbi, segno);
+		enum dirty_type t = sentry->type;
+
+		if (test_and_clear_bit(segno, dirty_i->dirty_segmap[t]))
+			dirty_i->nr_dirty[t]--;
 
 		if (get_valid_blocks(sbi, segno, sbi->segs_per_sec) == 0)
 			clear_bit(GET_SECNO(sbi, segno),
-- 
cgit 


From b8b60e1a65893728ca868493cb4c4b64b55e7f9c Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Mon, 28 Oct 2013 13:12:09 +0900
Subject: f2fs: clean up acl flow for better readability

This patch cleans up a couple of acl codes.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/acl.c | 25 +++++++++++++------------
 fs/f2fs/acl.h |  6 +++---
 2 files changed, 16 insertions(+), 15 deletions(-)

diff --git a/fs/f2fs/acl.c b/fs/f2fs/acl.c
index b7826ec1b470..f1a697584651 100644
--- a/fs/f2fs/acl.c
+++ b/fs/f2fs/acl.c
@@ -262,8 +262,8 @@ static int f2fs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
 
 int f2fs_init_acl(struct inode *inode, struct inode *dir)
 {
-	struct posix_acl *acl = NULL;
 	struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
+	struct posix_acl *acl = NULL;
 	int error = 0;
 
 	if (!S_ISLNK(inode->i_mode)) {
@@ -276,19 +276,19 @@ int f2fs_init_acl(struct inode *inode, struct inode *dir)
 			inode->i_mode &= ~current_umask();
 	}
 
-	if (test_opt(sbi, POSIX_ACL) && acl) {
+	if (!test_opt(sbi, POSIX_ACL) || !acl)
+		goto cleanup;
 
-		if (S_ISDIR(inode->i_mode)) {
-			error = f2fs_set_acl(inode, ACL_TYPE_DEFAULT, acl);
-			if (error)
-				goto cleanup;
-		}
-		error = posix_acl_create(&acl, GFP_KERNEL, &inode->i_mode);
-		if (error < 0)
-			return error;
-		if (error > 0)
-			error = f2fs_set_acl(inode, ACL_TYPE_ACCESS, acl);
+	if (S_ISDIR(inode->i_mode)) {
+		error = f2fs_set_acl(inode, ACL_TYPE_DEFAULT, acl);
+		if (error)
+			goto cleanup;
 	}
+	error = posix_acl_create(&acl, GFP_KERNEL, &inode->i_mode);
+	if (error < 0)
+		return error;
+	if (error > 0)
+		error = f2fs_set_acl(inode, ACL_TYPE_ACCESS, acl);
 cleanup:
 	posix_acl_release(acl);
 	return error;
@@ -313,6 +313,7 @@ int f2fs_acl_chmod(struct inode *inode)
 	error = posix_acl_chmod(&acl, GFP_KERNEL, mode);
 	if (error)
 		return error;
+
 	error = f2fs_set_acl(inode, ACL_TYPE_ACCESS, acl);
 	posix_acl_release(acl);
 	return error;
diff --git a/fs/f2fs/acl.h b/fs/f2fs/acl.h
index 80f430674417..3839048f2e96 100644
--- a/fs/f2fs/acl.h
+++ b/fs/f2fs/acl.h
@@ -36,9 +36,9 @@ struct f2fs_acl_header {
 
 #ifdef CONFIG_F2FS_FS_POSIX_ACL
 
-extern struct posix_acl *f2fs_get_acl(struct inode *inode, int type);
-extern int f2fs_acl_chmod(struct inode *inode);
-extern int f2fs_init_acl(struct inode *inode, struct inode *dir);
+extern struct posix_acl *f2fs_get_acl(struct inode *, int);
+extern int f2fs_acl_chmod(struct inode *);
+extern int f2fs_init_acl(struct inode *, struct inode *);
 #else
 #define f2fs_check_acl	NULL
 #define f2fs_get_acl	NULL
-- 
cgit 


From 2ed2d5b33cb564025b1eb90650d70a0a3592c0e3 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Mon, 28 Oct 2013 13:17:54 +0900
Subject: f2fs: fix a deadlock during init_acl procedure

The deadlock is found through the following scenario.

sys_mkdir()
 -> f2fs_add_link()
  -> __f2fs_add_link()
   -> init_inode_metadata()
     : lock_page(inode);
    -> f2fs_init_acl()
     -> f2fs_set_acl()
      -> f2fs_setxattr(..., NULL)
       : This NULL page incurs a deadlock at update_inode_page().

So, likewise f2fs_init_security(), this patch adds a parameter to transfer the
locked inode page to f2fs_setxattr().

Found by Linux File System Verification project (linuxtesting.org).

Reported-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/acl.c | 15 ++++++++-------
 fs/f2fs/acl.h |  5 +++--
 fs/f2fs/dir.c |  2 +-
 3 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/fs/f2fs/acl.c b/fs/f2fs/acl.c
index f1a697584651..d0fc287efeff 100644
--- a/fs/f2fs/acl.c
+++ b/fs/f2fs/acl.c
@@ -205,7 +205,8 @@ struct posix_acl *f2fs_get_acl(struct inode *inode, int type)
 	return acl;
 }
 
-static int f2fs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
+static int f2fs_set_acl(struct inode *inode, int type,
+			struct posix_acl *acl, struct page *ipage)
 {
 	struct f2fs_sb_info *sbi = F2FS_SB(inode->i_sb);
 	struct f2fs_inode_info *fi = F2FS_I(inode);
@@ -250,7 +251,7 @@ static int f2fs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
 		}
 	}
 
-	error = f2fs_setxattr(inode, name_index, "", value, size, NULL);
+	error = f2fs_setxattr(inode, name_index, "", value, size, ipage);
 
 	kfree(value);
 	if (!error)
@@ -260,7 +261,7 @@ static int f2fs_set_acl(struct inode *inode, int type, struct posix_acl *acl)
 	return error;
 }
 
-int f2fs_init_acl(struct inode *inode, struct inode *dir)
+int f2fs_init_acl(struct inode *inode, struct inode *dir, struct page *ipage)
 {
 	struct f2fs_sb_info *sbi = F2FS_SB(dir->i_sb);
 	struct posix_acl *acl = NULL;
@@ -280,7 +281,7 @@ int f2fs_init_acl(struct inode *inode, struct inode *dir)
 		goto cleanup;
 
 	if (S_ISDIR(inode->i_mode)) {
-		error = f2fs_set_acl(inode, ACL_TYPE_DEFAULT, acl);
+		error = f2fs_set_acl(inode, ACL_TYPE_DEFAULT, acl, ipage);
 		if (error)
 			goto cleanup;
 	}
@@ -288,7 +289,7 @@ int f2fs_init_acl(struct inode *inode, struct inode *dir)
 	if (error < 0)
 		return error;
 	if (error > 0)
-		error = f2fs_set_acl(inode, ACL_TYPE_ACCESS, acl);
+		error = f2fs_set_acl(inode, ACL_TYPE_ACCESS, acl, ipage);
 cleanup:
 	posix_acl_release(acl);
 	return error;
@@ -314,7 +315,7 @@ int f2fs_acl_chmod(struct inode *inode)
 	if (error)
 		return error;
 
-	error = f2fs_set_acl(inode, ACL_TYPE_ACCESS, acl);
+	error = f2fs_set_acl(inode, ACL_TYPE_ACCESS, acl, NULL);
 	posix_acl_release(acl);
 	return error;
 }
@@ -389,7 +390,7 @@ static int f2fs_xattr_set_acl(struct dentry *dentry, const char *name,
 		acl = NULL;
 	}
 
-	error = f2fs_set_acl(inode, type, acl);
+	error = f2fs_set_acl(inode, type, acl, NULL);
 
 release_and_out:
 	posix_acl_release(acl);
diff --git a/fs/f2fs/acl.h b/fs/f2fs/acl.h
index 3839048f2e96..49633131e038 100644
--- a/fs/f2fs/acl.h
+++ b/fs/f2fs/acl.h
@@ -38,7 +38,7 @@ struct f2fs_acl_header {
 
 extern struct posix_acl *f2fs_get_acl(struct inode *, int);
 extern int f2fs_acl_chmod(struct inode *);
-extern int f2fs_init_acl(struct inode *, struct inode *);
+extern int f2fs_init_acl(struct inode *, struct inode *, struct page *);
 #else
 #define f2fs_check_acl	NULL
 #define f2fs_get_acl	NULL
@@ -49,7 +49,8 @@ static inline int f2fs_acl_chmod(struct inode *inode)
 	return 0;
 }
 
-static inline int f2fs_init_acl(struct inode *inode, struct inode *dir)
+static inline int f2fs_init_acl(struct inode *inode, struct inode *dir,
+							struct page *page)
 {
 	return 0;
 }
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 384c6daf9a89..c9d53fc510c5 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -346,7 +346,7 @@ static struct page *init_inode_metadata(struct inode *inode,
 				goto error;
 		}
 
-		err = f2fs_init_acl(inode, dir);
+		err = f2fs_init_acl(inode, dir, page);
 		if (err)
 			goto error;
 
-- 
cgit 


From 82d8189826d54740607e6a240e602850ef62a07d Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 25 Oct 2013 18:25:03 -0700
Subject: veth: extend features to support tunneling

While investigating on a recent vxlan regression, I found veth
was using a zero features set for vxlan tunnels.

We have to segment GSO frames, copy the payload, and do the checksum.

This patch brings a ~200% performance increase

We probably have to add hw_enc_features support
on other virtual devices.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/veth.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index b2d034791e15..b24db7acbf12 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -261,6 +261,8 @@ static const struct net_device_ops veth_netdev_ops = {
 
 #define VETH_FEATURES (NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_ALL_TSO |    \
 		       NETIF_F_HW_CSUM | NETIF_F_RXCSUM | NETIF_F_HIGHDMA | \
+		       NETIF_F_GSO_GRE | NETIF_F_GSO_UDP_TUNNEL |	    \
+		       NETIF_F_GSO_IPIP | NETIF_F_GSO_SIT | NETIF_F_UFO	|   \
 		       NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | \
 		       NETIF_F_HW_VLAN_STAG_TX | NETIF_F_HW_VLAN_STAG_RX )
 
@@ -279,6 +281,7 @@ static void veth_setup(struct net_device *dev)
 	dev->destructor = veth_dev_free;
 
 	dev->hw_features = VETH_FEATURES;
+	dev->hw_enc_features = VETH_FEATURES;
 }
 
 /*
-- 
cgit 


From 2bccbadf2058b2453ea5f94bdee8b793f8e9331d Mon Sep 17 00:00:00 2001
From: wangweidong <wangweidong1@huawei.com>
Date: Sat, 26 Oct 2013 16:06:30 +0800
Subject: sctp: fix some comments in chunk.c and associola.c

fix some typos

Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: Wang Weidong <wangweidong1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sctp/associola.c | 4 ++--
 net/sctp/chunk.c     | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index cef509985192..c9b91cb1cb0d 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -602,7 +602,7 @@ void sctp_assoc_rm_peer(struct sctp_association *asoc,
 
 		/* Start a T3 timer here in case it wasn't running so
 		 * that these migrated packets have a chance to get
-		 * retrnasmitted.
+		 * retransmitted.
 		 */
 		if (!timer_pending(&active->T3_rtx_timer))
 			if (!mod_timer(&active->T3_rtx_timer,
@@ -665,7 +665,7 @@ struct sctp_transport *sctp_assoc_add_peer(struct sctp_association *asoc,
 	/* Set the path max_retrans.  */
 	peer->pathmaxrxt = asoc->pathmaxrxt;
 
-	/* And the partial failure retrnas threshold */
+	/* And the partial failure retrans threshold */
 	peer->pf_retrans = asoc->pf_retrans;
 
 	/* Initialize the peer's SACK delay timeout based on the
diff --git a/net/sctp/chunk.c b/net/sctp/chunk.c
index 7bd5ed4a8657..f2044fcb9dd1 100644
--- a/net/sctp/chunk.c
+++ b/net/sctp/chunk.c
@@ -201,7 +201,7 @@ struct sctp_datamsg *sctp_datamsg_from_user(struct sctp_association *asoc,
 
 	max = asoc->frag_point;
 	/* If the the peer requested that we authenticate DATA chunks
-	 * we need to accound for bundling of the AUTH chunks along with
+	 * we need to account for bundling of the AUTH chunks along with
 	 * DATA.
 	 */
 	if (sctp_auth_send_cid(SCTP_CID_DATA, asoc)) {
-- 
cgit 


From 3dc0a548a096c67e91ef3d8f6ca39466058b1725 Mon Sep 17 00:00:00 2001
From: wangweidong <wangweidong1@huawei.com>
Date: Sat, 26 Oct 2013 16:06:31 +0800
Subject: sctp: remove the repeat initialize with 0

kmem_cache_zalloc had set the allocated memory to zero. I think no need
to initialize with 0. And move the comments to the function begin.

Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: Wang Weidong <wangweidong1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sctp/sm_make_chunk.c | 29 ++++++++---------------------
 1 file changed, 8 insertions(+), 21 deletions(-)

diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c
index d244a23ab8d3..fe690320b1e4 100644
--- a/net/sctp/sm_make_chunk.c
+++ b/net/sctp/sm_make_chunk.c
@@ -1297,6 +1297,13 @@ struct sctp_chunk *sctp_make_auth(const struct sctp_association *asoc)
 
 /* Turn an skb into a chunk.
  * FIXME: Eventually move the structure directly inside the skb->cb[].
+ *
+ * sctpimpguide-05.txt Section 2.8.2
+ * M1) Each time a new DATA chunk is transmitted
+ * set the 'TSN.Missing.Report' count for that TSN to 0. The
+ * 'TSN.Missing.Report' count will be used to determine missing chunks
+ * and when to fast retransmit.
+ *
  */
 struct sctp_chunk *sctp_chunkify(struct sk_buff *skb,
 			    const struct sctp_association *asoc,
@@ -1314,29 +1321,9 @@ struct sctp_chunk *sctp_chunkify(struct sk_buff *skb,
 	INIT_LIST_HEAD(&retval->list);
 	retval->skb		= skb;
 	retval->asoc		= (struct sctp_association *)asoc;
-	retval->has_tsn		= 0;
-	retval->has_ssn         = 0;
-	retval->rtt_in_progress	= 0;
-	retval->sent_at		= 0;
 	retval->singleton	= 1;
-	retval->end_of_packet	= 0;
-	retval->ecn_ce_done	= 0;
-	retval->pdiscard	= 0;
-
-	/* sctpimpguide-05.txt Section 2.8.2
-	 * M1) Each time a new DATA chunk is transmitted
-	 * set the 'TSN.Missing.Report' count for that TSN to 0. The
-	 * 'TSN.Missing.Report' count will be used to determine missing chunks
-	 * and when to fast retransmit.
-	 */
-	retval->tsn_missing_report = 0;
-	retval->tsn_gap_acked = 0;
-	retval->fast_retransmit = SCTP_CAN_FRTX;
 
-	/* If this is a fragmented message, track all fragments
-	 * of the message (for SEND_FAILED).
-	 */
-	retval->msg = NULL;
+	retval->fast_retransmit = SCTP_CAN_FRTX;
 
 	/* Polish the bead hole.  */
 	INIT_LIST_HEAD(&retval->transmitted_list);
-- 
cgit 


From 747edc0f9ea6041128fe5ff8dda57634feb2a723 Mon Sep 17 00:00:00 2001
From: wangweidong <wangweidong1@huawei.com>
Date: Sat, 26 Oct 2013 16:06:32 +0800
Subject: sctp: merge two if statements to one

Two if statements do the same work, we can merge them to
one. And fix some typos. There is just code simplification,
no functional changes.

Signed-off-by: Wang Weidong <wangweidong1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sctp/auth.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/net/sctp/auth.c b/net/sctp/auth.c
index 8c4fa5dec824..46b5977978a1 100644
--- a/net/sctp/auth.c
+++ b/net/sctp/auth.c
@@ -539,18 +539,14 @@ struct sctp_hmac *sctp_auth_asoc_get_hmac(const struct sctp_association *asoc)
 	for (i = 0; i < n_elt; i++) {
 		id = ntohs(hmacs->hmac_ids[i]);
 
-		/* Check the id is in the supported range */
-		if (id > SCTP_AUTH_HMAC_ID_MAX) {
-			id = 0;
-			continue;
-		}
-
-		/* See is we support the id.  Supported IDs have name and
-		 * length fields set, so that we can allocated and use
+		/* Check the id is in the supported range. And
+		 * see if we support the id.  Supported IDs have name and
+		 * length fields set, so that we can allocate and use
 		 * them.  We can safely just check for name, for without the
 		 * name, we can't allocate the TFM.
 		 */
-		if (!sctp_hmac_list[id].hmac_name) {
+		if (id > SCTP_AUTH_HMAC_ID_MAX ||
+		    !sctp_hmac_list[id].hmac_name) {
 			id = 0;
 			continue;
 		}
-- 
cgit 


From eeb1b73378b560e00ff1da2ef09fed9254f4e128 Mon Sep 17 00:00:00 2001
From: Steffen Klassert <steffen.klassert@secunet.com>
Date: Fri, 25 Oct 2013 10:21:32 +0200
Subject: xfrm: Increase the garbage collector threshold

With the removal of the routing cache, we lost the
option to tweak the garbage collector threshold
along with the maximum routing cache size. So git
commit 703fb94ec ("xfrm: Fix the gc threshold value
for ipv4") moved back to a static threshold.

It turned out that the current threshold before we
start garbage collecting is much to small for some
workloads, so increase it from 1024 to 32768. This
means that we start the garbage collector if we have
more than 32768 dst entries in the system and refuse
new allocations if we are above 65536.

Reported-by: Wolfgang Walter <linux@stwm.de>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
 net/ipv4/xfrm4_policy.c | 2 +-
 net/ipv6/xfrm6_policy.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index ccde54248c8c..4764ee48447c 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -236,7 +236,7 @@ static struct dst_ops xfrm4_dst_ops = {
 	.destroy =		xfrm4_dst_destroy,
 	.ifdown =		xfrm4_dst_ifdown,
 	.local_out =		__ip_local_out,
-	.gc_thresh =		1024,
+	.gc_thresh =		32768,
 };
 
 static struct xfrm_policy_afinfo xfrm4_policy_afinfo = {
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index 08ed2772b7aa..dd503a3535ff 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -285,7 +285,7 @@ static struct dst_ops xfrm6_dst_ops = {
 	.destroy =		xfrm6_dst_destroy,
 	.ifdown =		xfrm6_dst_ifdown,
 	.local_out =		__ip6_local_out,
-	.gc_thresh =		1024,
+	.gc_thresh =		32768,
 };
 
 static struct xfrm_policy_afinfo xfrm6_policy_afinfo = {
-- 
cgit 


From 302bfe20ade2a7d6d02632ae8a775a68f651c0be Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 22 Oct 2013 15:29:46 -0700
Subject: s390: convert use of typedef ctl_table to struct ctl_table

This typedef is unnecessary and should just be removed.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/appldata/appldata_base.c | 10 +++++-----
 arch/s390/kernel/debug.c           |  2 +-
 arch/s390/mm/cmm.c                 |  8 ++++----
 3 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/arch/s390/appldata/appldata_base.c b/arch/s390/appldata/appldata_base.c
index 603d2003cd9f..4c4a1cef5208 100644
--- a/arch/s390/appldata/appldata_base.c
+++ b/arch/s390/appldata/appldata_base.c
@@ -48,9 +48,9 @@ static struct platform_device *appldata_pdev;
  * /proc entries (sysctl)
  */
 static const char appldata_proc_name[APPLDATA_PROC_NAME_LENGTH] = "appldata";
-static int appldata_timer_handler(ctl_table *ctl, int write,
+static int appldata_timer_handler(struct ctl_table *ctl, int write,
 				  void __user *buffer, size_t *lenp, loff_t *ppos);
-static int appldata_interval_handler(ctl_table *ctl, int write,
+static int appldata_interval_handler(struct ctl_table *ctl, int write,
 					 void __user *buffer,
 					 size_t *lenp, loff_t *ppos);
 
@@ -201,7 +201,7 @@ static void __appldata_vtimer_setup(int cmd)
  * Start/Stop timer, show status of timer (0 = not active, 1 = active)
  */
 static int
-appldata_timer_handler(ctl_table *ctl, int write,
+appldata_timer_handler(struct ctl_table *ctl, int write,
 			   void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	unsigned int len;
@@ -243,7 +243,7 @@ out:
  * current timer interval.
  */
 static int
-appldata_interval_handler(ctl_table *ctl, int write,
+appldata_interval_handler(struct ctl_table *ctl, int write,
 			   void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	unsigned int len;
@@ -287,7 +287,7 @@ out:
  * monitoring (0 = not in process, 1 = in process)
  */
 static int
-appldata_generic_handler(ctl_table *ctl, int write,
+appldata_generic_handler(struct ctl_table *ctl, int write,
 			   void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	struct appldata_ops *ops = NULL, *tmp_ops;
diff --git a/arch/s390/kernel/debug.c b/arch/s390/kernel/debug.c
index 17d62fe5d7b7..ee8390da6ea7 100644
--- a/arch/s390/kernel/debug.c
+++ b/arch/s390/kernel/debug.c
@@ -889,7 +889,7 @@ static int debug_active=1;
  * if debug_active is already off
  */
 static int
-s390dbf_procactive(ctl_table *table, int write,
+s390dbf_procactive(struct ctl_table *table, int write,
                      void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	if (!write || debug_stoppable || !debug_active)
diff --git a/arch/s390/mm/cmm.c b/arch/s390/mm/cmm.c
index 76741306af2a..79ddd580d605 100644
--- a/arch/s390/mm/cmm.c
+++ b/arch/s390/mm/cmm.c
@@ -253,8 +253,8 @@ static int cmm_skip_blanks(char *cp, char **endp)
 
 static struct ctl_table cmm_table[];
 
-static int cmm_pages_handler(ctl_table *ctl, int write, void __user *buffer,
-			     size_t *lenp, loff_t *ppos)
+static int cmm_pages_handler(struct ctl_table *ctl, int write,
+			     void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	char buf[16], *p;
 	unsigned int len;
@@ -293,8 +293,8 @@ static int cmm_pages_handler(ctl_table *ctl, int write, void __user *buffer,
 	return 0;
 }
 
-static int cmm_timeout_handler(ctl_table *ctl, int write,  void __user *buffer,
-			       size_t *lenp, loff_t *ppos)
+static int cmm_timeout_handler(struct ctl_table *ctl, int write,
+			       void __user *buffer, size_t *lenp, loff_t *ppos)
 {
 	char buf[64], *p;
 	long nr, seconds;
-- 
cgit 


From c81a90c853f183a8946af77ed9272ac61d78c077 Mon Sep 17 00:00:00 2001
From: Stefan Weinhuber <wein@de.ibm.com>
Date: Fri, 25 Oct 2013 11:08:06 +0200
Subject: s390/dasd: Write to profile data area only if it is available

We check for the existence of block->profile.data before we write to
it, but the dependent code block misses braces.

Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/s390/block/dasd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 451bf99582ff..244f77f844f0 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -698,10 +698,11 @@ static void dasd_profile_start(struct dasd_block *block,
 	}
 
 	spin_lock(&block->profile.lock);
-	if (block->profile.data)
+	if (block->profile.data) {
 		block->profile.data->dasd_io_nr_req[counter]++;
 		if (rq_data_dir(req) == READ)
 			block->profile.data->dasd_read_nr_req[counter]++;
+	}
 	spin_unlock(&block->profile.lock);
 
 	/*
-- 
cgit 


From ac526f42abdae2cdc3ae1a24c855f731e1a90232 Mon Sep 17 00:00:00 2001
From: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Date: Fri, 25 Oct 2013 16:01:04 +0200
Subject: tty/hvc_iucv: remove redundant NULL check

Make smatch happy and remove this warning:

drivers/tty/hvc/hvc_iucv.c:1320 hvc_iucv_init() info: redundant null check on
hvc_iucv_filter calling kfree()

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/tty/hvc/hvc_iucv.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/tty/hvc/hvc_iucv.c b/drivers/tty/hvc/hvc_iucv.c
index fd17a9b804b8..db19a38c8c69 100644
--- a/drivers/tty/hvc/hvc_iucv.c
+++ b/drivers/tty/hvc/hvc_iucv.c
@@ -1354,8 +1354,7 @@ out_error_memory:
 	mempool_destroy(hvc_iucv_mempool);
 	kmem_cache_destroy(hvc_iucv_buffer_cache);
 out_error:
-	if (hvc_iucv_filter)
-		kfree(hvc_iucv_filter);
+	kfree(hvc_iucv_filter);
 	hvc_iucv_devices = 0; /* ensure that we do not provide any device */
 	return rc;
 }
-- 
cgit 


From bbfe65c219c638e19f1da5adab1005b2d68ca810 Mon Sep 17 00:00:00 2001
From: Thomas Pfaff <tpfaff@pcs.com>
Date: Fri, 11 Oct 2013 13:00:40 +0200
Subject: genirq: Set the irq thread policy without checking CAP_SYS_NICE

In commit ee23871389 ("genirq: Set irq thread to RT priority on
creation") we moved the assigment of the thread's priority from the
thread's function into __setup_irq(). That function may run in user
context for instance if the user opens an UART node and then driver
calls requests in the ->open() callback. That user may not have
CAP_SYS_NICE and so the irq thread won't run with the SCHED_OTHER
policy.

This patch uses sched_setscheduler_nocheck() so we omit the CAP_SYS_NICE
check which is otherwise required for the SCHED_OTHER policy.

[bigeasy: Rewrite the changelog]

Signed-off-by: Thomas Pfaff <tpfaff@pcs.com>
Cc: Ivo Sieben <meltedpianoman@gmail.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1381489240-29626-1-git-send-email-bigeasy@linutronix.de
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 kernel/irq/manage.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 514bcfd855a8..3e59f951d42f 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -956,7 +956,7 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)
 			goto out_mput;
 		}
 
-		sched_setscheduler(t, SCHED_FIFO, &param);
+		sched_setscheduler_nocheck(t, SCHED_FIFO, &param);
 
 		/*
 		 * We keep the reference to the task struct even if
-- 
cgit 


From a655f75c7502e5000c8745f458d3dbb9777f4aca Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 25 Oct 2013 16:33:12 +0200
Subject: ALSA: pcm_dmaengine: Remove hardcoded PCM formats

Use the standard PCM helper function to figure out the sample bytes
instead of hardcodec PCM format checks in
snd_hwparams_to_dma_slave_config().

The patch also extends the format check for 8 bytes formats although
no one should match so far.

Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/core/pcm_dmaengine.c | 22 +++++++++-------------
 1 file changed, 9 insertions(+), 13 deletions(-)

diff --git a/sound/core/pcm_dmaengine.c b/sound/core/pcm_dmaengine.c
index aa924d9b7986..94d08733cb38 100644
--- a/sound/core/pcm_dmaengine.c
+++ b/sound/core/pcm_dmaengine.c
@@ -63,23 +63,19 @@ int snd_hwparams_to_dma_slave_config(const struct snd_pcm_substream *substream,
 	struct dma_slave_config *slave_config)
 {
 	enum dma_slave_buswidth buswidth;
+	int bits;
 
-	switch (params_format(params)) {
-	case SNDRV_PCM_FORMAT_S8:
+	bits = snd_pcm_format_physical_width(params_format(params));
+	if (bits < 8 || bits > 64)
+		return -EINVAL;
+	else if (bits == 8)
 		buswidth = DMA_SLAVE_BUSWIDTH_1_BYTE;
-		break;
-	case SNDRV_PCM_FORMAT_S16_LE:
+	else if (bits == 16)
 		buswidth = DMA_SLAVE_BUSWIDTH_2_BYTES;
-		break;
-	case SNDRV_PCM_FORMAT_S18_3LE:
-	case SNDRV_PCM_FORMAT_S20_3LE:
-	case SNDRV_PCM_FORMAT_S24_LE:
-	case SNDRV_PCM_FORMAT_S32_LE:
+	else if (bits <= 32)
 		buswidth = DMA_SLAVE_BUSWIDTH_4_BYTES;
-		break;
-	default:
-		return -EINVAL;
-	}
+	else
+		buswidth = DMA_SLAVE_BUSWIDTH_8_BYTES;
 
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 		slave_config->direction = DMA_MEM_TO_DEV;
-- 
cgit 


From 6e7cd27c0f77847f1b07a81ae2ed17b937a7531a Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Fri, 25 Oct 2013 11:05:04 +0200
Subject: net: ipvs: sctp: add missing verdict assignments in
 sctp_conn_schedule

If skb_header_pointer() fails, we need to assign a verdict, that is
NF_DROP in this case, otherwise, we would leave the verdict from
conn_schedule() uninitialized when returning.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Jesper Dangaard Brouer <brouer@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
---
 net/netfilter/ipvs/ip_vs_proto_sctp.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/ipvs/ip_vs_proto_sctp.c b/net/netfilter/ipvs/ip_vs_proto_sctp.c
index 23e596e438b3..9ca7aa033284 100644
--- a/net/netfilter/ipvs/ip_vs_proto_sctp.c
+++ b/net/netfilter/ipvs/ip_vs_proto_sctp.c
@@ -20,13 +20,18 @@ sctp_conn_schedule(int af, struct sk_buff *skb, struct ip_vs_proto_data *pd,
 	sctp_sctphdr_t *sh, _sctph;
 
 	sh = skb_header_pointer(skb, iph->len, sizeof(_sctph), &_sctph);
-	if (sh == NULL)
+	if (sh == NULL) {
+		*verdict = NF_DROP;
 		return 0;
+	}
 
 	sch = skb_header_pointer(skb, iph->len + sizeof(sctp_sctphdr_t),
 				 sizeof(_schunkh), &_schunkh);
-	if (sch == NULL)
+	if (sch == NULL) {
+		*verdict = NF_DROP;
 		return 0;
+	}
+
 	net = skb_net(skb);
 	ipvs = net_ipvs(net);
 	rcu_read_lock();
-- 
cgit 


From ac9ff7997b6f2b31949dcd2495ac671fd9ddc990 Mon Sep 17 00:00:00 2001
From: Michael wang <wangyun@linux.vnet.ibm.com>
Date: Mon, 28 Oct 2013 10:50:22 +0800
Subject: sched: Remove extra put_online_cpus() inside sched_setaffinity()

Commit 6acce3ef8:

	sched: Remove get_online_cpus() usage

has left one extra put_online_cpus() inside sched_setaffinity(),
remove it to fix the WARN:

   ------------[ cut here ]------------
   WARNING: CPU: 0 PID: 3166 at kernel/cpu.c:84 put_online_cpus+0x43/0x70()
   ...
   [<ffffffff810c3fef>] put_online_cpus+0x43/0x70 [
   [<ffffffff810efd59>] sched_setaffinity+0x7d/0x1f9 [
   ...

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Tested-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Michael Wang <wangyun@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/526DD0EE.1090309@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/core.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index c06b8d345fae..7c61f313521d 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -3716,7 +3716,6 @@ long sched_setaffinity(pid_t pid, const struct cpumask *in_mask)
 	p = find_process_by_pid(pid);
 	if (!p) {
 		rcu_read_unlock();
-		put_online_cpus();
 		return -ESRCH;
 	}
 
-- 
cgit 


From d0f38f9130b7683e39611c5a661349e301ee43c8 Mon Sep 17 00:00:00 2001
From: Robin Murphy <Robin.Murphy@arm.com>
Date: Mon, 7 Oct 2013 18:30:34 +0100
Subject: arm64: update 32-bit kuser helpers to ARMv8

This patch updates the barrier semantics in the kuser helper functions
to take advantage of the ARMv8 additions to AArch32, which are
guaranteed to be available in situations where these functions will be
called.

Note that this slightly changes the cmpxchg functions in that they are
no longer necessarily full barriers if they return 1. However, the
documentation only states they include their own barriers "as needed",
not that they are obligated to act as a full barrier for the caller.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
CC: Matthew Leach <matthew.leach@arm.com>
CC: Dave Martin <dave.martin@arm.com>
CC: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kernel/kuser32.S | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/arch/arm64/kernel/kuser32.S b/arch/arm64/kernel/kuser32.S
index 1e4905d52d30..63c48ffdf230 100644
--- a/arch/arm64/kernel/kuser32.S
+++ b/arch/arm64/kernel/kuser32.S
@@ -38,33 +38,30 @@ __kuser_cmpxchg64:			// 0xffff0f60
 	.inst	0xe92d00f0		//	push		{r4, r5, r6, r7}
 	.inst	0xe1c040d0		//	ldrd		r4, r5, [r0]
 	.inst	0xe1c160d0		//	ldrd		r6, r7, [r1]
-	.inst	0xf57ff05f		//	dmb		sy
-	.inst	0xe1b20f9f		// 1:	ldrexd		r0, r1, [r2]
+	.inst	0xe1b20e9f		// 1:	ldaexd		r0, r1, [r2]
 	.inst	0xe0303004		//	eors		r3, r0, r4
 	.inst	0x00313005		//	eoreqs		r3, r1, r5
-	.inst	0x01a23f96		//	strexdeq	r3, r6, [r2]
+	.inst	0x01a23e96		//	stlexdeq	r3, r6, [r2]
 	.inst	0x03330001		//	teqeq		r3, #1
 	.inst	0x0afffff9		//	beq		1b
-	.inst	0xf57ff05f		//	dmb		sy
 	.inst	0xe2730000		//	rsbs		r0, r3, #0
 	.inst	0xe8bd00f0		//	pop		{r4, r5, r6, r7}
 	.inst	0xe12fff1e		//	bx		lr
 
 	.align	5
 __kuser_memory_barrier:			// 0xffff0fa0
-	.inst	0xf57ff05f		//	dmb		sy
+	.inst	0xf57ff05b		//	dmb		ish
 	.inst	0xe12fff1e		//	bx		lr
 
 	.align	5
 __kuser_cmpxchg:			// 0xffff0fc0
-	.inst	0xf57ff05f		//	dmb		sy
-	.inst	0xe1923f9f		// 1:	ldrex		r3, [r2]
+	.inst	0xe1923e9f		// 1:	ldaex		r3, [r2]
 	.inst	0xe0533000		//	subs		r3, r3, r0
-	.inst	0x01823f91		//	strexeq	r3, r1, [r2]
+	.inst	0x01823e91		//	stlexeq		r3, r1, [r2]
 	.inst	0x03330001		//	teqeq		r3, #1
 	.inst	0x0afffffa		//	beq		1b
 	.inst	0xe2730000		//	rsbs		r0, r3, #0
-	.inst	0xeaffffef		//	b		<__kuser_memory_barrier>
+	.inst	0xe12fff1e		//	bx		lr
 
 	.align	5
 __kuser_get_tls:			// 0xffff0fe0
-- 
cgit 


From 0523f037f65dba10191b0fa9c51266f90ba64630 Mon Sep 17 00:00:00 2001
From: Shan Hai <shan.hai@windriver.com>
Date: Mon, 28 Oct 2013 16:08:01 +0800
Subject: drivers/libata: Set max sector to 65535 for Slimtype DVD A DS8A9SH
 drive

The "Slimtype DVD A  DS8A9SH" drive locks up with following backtrace when
the max sector is smaller than 65535 bytes, fix it by adding a quirk to set
the max sector to 65535 bytes.

INFO: task flush-11:0:663 blocked for more than 120 seconds.
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
flush-11:0    D 00000000ffff5ceb     0   663      2 0x00000000
 ffff88026d3b1710 0000000000000046 0000000000000001 0000000000000000
 ffff88026f2530c0 ffff88026d365860 ffff88026d3b16e0 ffffffff812ffd52
 ffff88026d4fd3d0 0000000100000001 ffff88026d3b16f0 ffff88026d3b1fd8
Call Trace:
 [<ffffffff812ffd52>] ? cfq_may_queue+0x52/0xf0
 [<ffffffff81604338>] schedule+0x18/0x30
 [<ffffffff81604392>] io_schedule+0x42/0x60
 [<ffffffff812f22bb>] get_request_wait+0xeb/0x1f0
 [<ffffffff81065660>] ? autoremove_wake_function+0x0/0x40
 [<ffffffff812eb382>] ? elv_merge+0x42/0x210
 [<ffffffff812f26ae>] __make_request+0x8e/0x4e0
 [<ffffffff812f068e>] generic_make_request+0x21e/0x5e0
 [<ffffffff812f0aad>] submit_bio+0x5d/0xd0
 [<ffffffff81141422>] submit_bh+0xf2/0x130
 [<ffffffff8114474c>] __block_write_full_page+0x1dc/0x3a0
 [<ffffffff81143f60>] ? end_buffer_async_write+0x0/0x120
 [<ffffffff811474e0>] ? blkdev_get_block+0x0/0x70
 [<ffffffff811474e0>] ? blkdev_get_block+0x0/0x70
 [<ffffffff81143f60>] ? end_buffer_async_write+0x0/0x120
 [<ffffffff811449ee>] block_write_full_page_endio+0xde/0x100
 [<ffffffff81144a20>] block_write_full_page+0x10/0x20
 [<ffffffff81148703>] blkdev_writepage+0x13/0x20
 [<ffffffff810d7525>] __writepage+0x15/0x40
 [<ffffffff810d7c0f>] write_cache_pages+0x1cf/0x3e0
 [<ffffffff810d7510>] ? __writepage+0x0/0x40
 [<ffffffff810d7e42>] generic_writepages+0x22/0x30
 [<ffffffff810d7e6f>] do_writepages+0x1f/0x40
 [<ffffffff8113ae67>] writeback_single_inode+0xe7/0x3b0
 [<ffffffff8113b574>] writeback_sb_inodes+0x184/0x280
 [<ffffffff8113bedb>] writeback_inodes_wb+0x6b/0x1a0
 [<ffffffff8113c24b>] wb_writeback+0x23b/0x2a0
 [<ffffffff8113c42d>] wb_do_writeback+0x17d/0x190
 [<ffffffff8113c48b>] bdi_writeback_task+0x4b/0xe0
 [<ffffffff810e82a0>] ? bdi_start_fn+0x0/0x100
 [<ffffffff810e8321>] bdi_start_fn+0x81/0x100
 [<ffffffff810e82a0>] ? bdi_start_fn+0x0/0x100
 [<ffffffff8106522e>] kthread+0x8e/0xa0
 [<ffffffff81039274>] ? finish_task_switch+0x54/0xc0
 [<ffffffff81003334>] kernel_thread_helper+0x4/0x10
 [<ffffffff810651a0>] ? kthread+0x0/0xa0
 [<ffffffff81003330>] ? kernel_thread_helper+0x0/0x10

 The above trace was triggered by
   "dd if=/dev/zero of=/dev/sr0 bs=2048 count=32768"

Cc: stable@vger.kernel.org
Signed-off-by: Shan Hai <shan.hai@windriver.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 drivers/ata/libata-core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 83b1a9fb2d44..81a94a3919db 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -4126,6 +4126,7 @@ static const struct ata_blacklist_entry ata_device_blacklist [] = {
 	{ "TORiSAN DVD-ROM DRD-N216", NULL,	ATA_HORKAGE_MAX_SEC_128 },
 	{ "QUANTUM DAT    DAT72-000", NULL,	ATA_HORKAGE_ATAPI_MOD16_DMA },
 	{ "Slimtype DVD A  DS8A8SH", NULL,	ATA_HORKAGE_MAX_SEC_LBA48 },
+	{ "Slimtype DVD A  DS8A9SH", NULL,	ATA_HORKAGE_MAX_SEC_LBA48 },
 
 	/* Devices we expect to fail diagnostics */
 
-- 
cgit 


From 8ab8831a503e8996edd727d98ec5be62b8d799d9 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 5 Jun 2013 11:42:59 +0530
Subject: PM / devfreq: Fix incorrect usage of IS_ERR_OR_NULL in exynos5_bus.c

platform_device_register_simple does not return NULL.
Hence NULL check is not required.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
---
 drivers/devfreq/exynos/exynos5_bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/devfreq/exynos/exynos5_bus.c b/drivers/devfreq/exynos/exynos5_bus.c
index 574b16b59be5..cd1e6309887f 100644
--- a/drivers/devfreq/exynos/exynos5_bus.c
+++ b/drivers/devfreq/exynos/exynos5_bus.c
@@ -479,7 +479,7 @@ static int __init exynos5_busfreq_int_init(void)
 
 	exynos5_devfreq_pdev =
 		platform_device_register_simple("exynos5-bus-int", -1, NULL, 0);
-	if (IS_ERR_OR_NULL(exynos5_devfreq_pdev)) {
+	if (IS_ERR(exynos5_devfreq_pdev)) {
 		ret = PTR_ERR(exynos5_devfreq_pdev);
 		goto out1;
 	}
-- 
cgit 


From 81c12a0a79575a22b64f050ea2e626f12d124841 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 5 Jun 2013 11:43:00 +0530
Subject: PM / devfreq: Remove redundant platform_set_drvdata() in
 exynos5_bus.c

Commit 0998d06310 (device-core: Ensure drvdata = NULL when no
driver is bound) removes the need to set driver data field to
NULL.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: MyungJoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
---
 drivers/devfreq/exynos/exynos5_bus.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/devfreq/exynos/exynos5_bus.c b/drivers/devfreq/exynos/exynos5_bus.c
index cd1e6309887f..9a82419c29eb 100644
--- a/drivers/devfreq/exynos/exynos5_bus.c
+++ b/drivers/devfreq/exynos/exynos5_bus.c
@@ -419,7 +419,6 @@ static int exynos5_busfreq_int_probe(struct platform_device *pdev)
 
 err_devfreq_add:
 	devfreq_remove_device(data->devfreq);
-	platform_set_drvdata(pdev, NULL);
 err_opp_add:
 	clk_put(data->int_clk);
 err_clock:
@@ -437,7 +436,6 @@ static int exynos5_busfreq_int_remove(struct platform_device *pdev)
 	devfreq_remove_device(data->devfreq);
 	regulator_put(data->vdd_int);
 	clk_put(data->int_clk);
-	platform_set_drvdata(pdev, NULL);
 
 	return 0;
 }
-- 
cgit 


From 02844f747e72186f7d3f34d6f78de90cb8eb2139 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 5 Jun 2013 11:43:01 +0530
Subject: PM / devfreq: Use devm_* APIs in exynos5_bus.c

devm_* APIs are device managed and make clean up and exit codes
simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
---
 drivers/devfreq/exynos/exynos5_bus.c | 26 ++++++++------------------
 1 file changed, 8 insertions(+), 18 deletions(-)

diff --git a/drivers/devfreq/exynos/exynos5_bus.c b/drivers/devfreq/exynos/exynos5_bus.c
index 9a82419c29eb..102d1f0f261f 100644
--- a/drivers/devfreq/exynos/exynos5_bus.c
+++ b/drivers/devfreq/exynos/exynos5_bus.c
@@ -351,20 +351,18 @@ static int exynos5_busfreq_int_probe(struct platform_device *pdev)
 
 	err = exynos5250_init_int_tables(data);
 	if (err)
-		goto err_regulator;
+		return err;
 
-	data->vdd_int = regulator_get(dev, "vdd_int");
+	data->vdd_int = devm_regulator_get(dev, "vdd_int");
 	if (IS_ERR(data->vdd_int)) {
 		dev_err(dev, "Cannot get the regulator \"vdd_int\"\n");
-		err = PTR_ERR(data->vdd_int);
-		goto err_regulator;
+		return PTR_ERR(data->vdd_int);
 	}
 
-	data->int_clk = clk_get(dev, "int_clk");
+	data->int_clk = devm_clk_get(dev, "int_clk");
 	if (IS_ERR(data->int_clk)) {
 		dev_err(dev, "Cannot get clock \"int_clk\"\n");
-		err = PTR_ERR(data->int_clk);
-		goto err_clock;
+		return PTR_ERR(data->int_clk);
 	}
 
 	rcu_read_lock();
@@ -374,8 +372,7 @@ static int exynos5_busfreq_int_probe(struct platform_device *pdev)
 		rcu_read_unlock();
 		dev_err(dev, "Invalid initial frequency %lu kHz.\n",
 		       exynos5_devfreq_int_profile.initial_freq);
-		err = PTR_ERR(opp);
-		goto err_opp_add;
+		return PTR_ERR(opp);
 	}
 	initial_freq = opp_get_freq(opp);
 	initial_volt = opp_get_voltage(opp);
@@ -385,12 +382,12 @@ static int exynos5_busfreq_int_probe(struct platform_device *pdev)
 	err = clk_set_rate(data->int_clk, initial_freq * 1000);
 	if (err) {
 		dev_err(dev, "Failed to set initial frequency\n");
-		goto err_opp_add;
+		return err;
 	}
 
 	err = exynos5_int_setvolt(data, initial_volt);
 	if (err)
-		goto err_opp_add;
+		return err;
 
 	platform_set_drvdata(pdev, data);
 
@@ -419,11 +416,6 @@ static int exynos5_busfreq_int_probe(struct platform_device *pdev)
 
 err_devfreq_add:
 	devfreq_remove_device(data->devfreq);
-err_opp_add:
-	clk_put(data->int_clk);
-err_clock:
-	regulator_put(data->vdd_int);
-err_regulator:
 	return err;
 }
 
@@ -434,8 +426,6 @@ static int exynos5_busfreq_int_remove(struct platform_device *pdev)
 	pm_qos_remove_request(&data->int_req);
 	unregister_pm_notifier(&data->pm_notifier);
 	devfreq_remove_device(data->devfreq);
-	regulator_put(data->vdd_int);
-	clk_put(data->int_clk);
 
 	return 0;
 }
-- 
cgit 


From 9671dc7935722a911262cade5c594315540628f2 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 7 Jun 2013 14:25:49 +0530
Subject: PM / devfreq: Remove duplicate header file inclusion in exynos5_bus.c

linux/opp.h was included twice.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
---
 drivers/devfreq/exynos/exynos5_bus.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/devfreq/exynos/exynos5_bus.c b/drivers/devfreq/exynos/exynos5_bus.c
index 102d1f0f261f..04c164eecf25 100644
--- a/drivers/devfreq/exynos/exynos5_bus.c
+++ b/drivers/devfreq/exynos/exynos5_bus.c
@@ -18,7 +18,6 @@
 #include <linux/opp.h>
 #include <linux/slab.h>
 #include <linux/suspend.h>
-#include <linux/opp.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/platform_device.h>
-- 
cgit 


From ea7f4548c93aacbac5fe3e1b4eb273d3df5f16e3 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 15 Aug 2013 10:55:10 +0300
Subject: PM / devfreq: create_freezable_workqueue() doesn't return an ERR_PTR

The create_freezable_workqueue() function returns a NULL on error and
not an ERR_PTR.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
---
 drivers/devfreq/devfreq.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index c99c00d35d34..22e5d2ffebd8 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -993,10 +993,10 @@ static int __init devfreq_init(void)
 	}
 
 	devfreq_wq = create_freezable_workqueue("devfreq_wq");
-	if (IS_ERR(devfreq_wq)) {
+	if (!devfreq_wq) {
 		class_destroy(devfreq_class);
 		pr_err("%s: couldn't create workqueue\n", __FILE__);
-		return PTR_ERR(devfreq_wq);
+		return -ENOMEM;
 	}
 	devfreq_class->dev_groups = devfreq_groups;
 
-- 
cgit 


From d3134dbf2046076b6e52b05890e812442d5257fb Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Wed, 23 Oct 2013 14:40:31 +0100
Subject: KVM: nVMX: Report 2MB EPT pages as supported

As long as the hardware provides us 2MB EPT pages, we can also expose
them to the guest because our shadow EPT code already supports this
feature.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/vmx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 06fd7629068a..feef3a1e45d3 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2261,7 +2261,8 @@ static __init void nested_vmx_setup_ctls_msrs(void)
 		/* nested EPT: emulate EPT also to L1 */
 		nested_vmx_secondary_ctls_high |= SECONDARY_EXEC_ENABLE_EPT;
 		nested_vmx_ept_caps = VMX_EPT_PAGE_WALK_4_BIT |
-			 VMX_EPTP_WB_BIT | VMX_EPT_INVEPT_BIT;
+			 VMX_EPTP_WB_BIT | VMX_EPT_2MB_PAGE_BIT |
+			 VMX_EPT_INVEPT_BIT;
 		nested_vmx_ept_caps &= vmx_capability.ept;
 		/*
 		 * Since invept is completely emulated we support both global
-- 
cgit 


From cd2633c59b6f511effb53e10fa2c1e20b1cec1e7 Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Wed, 23 Oct 2013 17:42:15 +0100
Subject: nVMX: Fix pick-up of uninjected NMIs

__vmx_complete_interrupts stored uninjected NMIs in arch.nmi_injected,
not arch.nmi_pending. So we actually need to check the former field in
vmcs12_save_pending_event. This fixes the eventinj unit test when run
in nested KVM.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/vmx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index feef3a1e45d3..81ce3898b448 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -8078,7 +8078,7 @@ static void vmcs12_save_pending_event(struct kvm_vcpu *vcpu,
 		}
 
 		vmcs12->idt_vectoring_info_field = idt_vectoring;
-	} else if (vcpu->arch.nmi_pending) {
+	} else if (vcpu->arch.nmi_injected) {
 		vmcs12->idt_vectoring_info_field =
 			INTR_TYPE_NMI_INTR | INTR_INFO_VALID_MASK | NMI_VECTOR;
 	} else if (vcpu->arch.interrupt.pending) {
-- 
cgit 


From a294c9bbd0dd0dea415a0ee5b8ee9c07f65f5496 Mon Sep 17 00:00:00 2001
From: Jan Kiszka <jan.kiszka@siemens.com>
Date: Wed, 23 Oct 2013 17:43:09 +0100
Subject: nVMX: Report CPU_BASED_VIRTUAL_NMI_PENDING as supported

If the host supports it, we can and should expose it to the guest as
well, just like we already do with PIN_BASED_VIRTUAL_NMIS.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/vmx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 81ce3898b448..6850b0f1d52b 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -2228,7 +2228,8 @@ static __init void nested_vmx_setup_ctls_msrs(void)
 		nested_vmx_procbased_ctls_low, nested_vmx_procbased_ctls_high);
 	nested_vmx_procbased_ctls_low = 0;
 	nested_vmx_procbased_ctls_high &=
-		CPU_BASED_VIRTUAL_INTR_PENDING | CPU_BASED_USE_TSC_OFFSETING |
+		CPU_BASED_VIRTUAL_INTR_PENDING |
+		CPU_BASED_VIRTUAL_NMI_PENDING | CPU_BASED_USE_TSC_OFFSETING |
 		CPU_BASED_HLT_EXITING | CPU_BASED_INVLPG_EXITING |
 		CPU_BASED_MWAIT_EXITING | CPU_BASED_CR3_LOAD_EXITING |
 		CPU_BASED_CR3_STORE_EXITING |
-- 
cgit 


From e0230e1327fb862c9b6cde24ae62d55f9db62c9b Mon Sep 17 00:00:00 2001
From: Yang Zhang <yang.z.zhang@Intel.com>
Date: Thu, 24 Oct 2013 09:56:39 +0800
Subject: KVM: Mapping IOMMU pages after updating memslot

In kvm_iommu_map_pages(), we need to know the page size via call
kvm_host_page_size(). And it will check whether the target slot
is valid before return the right page size.
Currently, we will map the iommu pages when creating a new slot.
But we call kvm_iommu_map_pages() during preparing the new slot.
At that time, the new slot is not visible by domain(still in preparing).
So we cannot get the right page size from kvm_host_page_size() and
this will break the IOMMU super page logic.
The solution is to map the iommu pages after we insert the new slot
into domain.

Signed-off-by: Yang Zhang <yang.z.zhang@Intel.com>
Tested-by: Patrick Lu <patrick.lu@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 virt/kvm/kvm_main.c | 29 ++++++++++++++---------------
 1 file changed, 14 insertions(+), 15 deletions(-)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 0d20c320a33d..9ca014da134d 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -873,21 +873,6 @@ int __kvm_set_memory_region(struct kvm *kvm,
 			goto out_free;
 	}
 
-	/*
-	 * IOMMU mapping:  New slots need to be mapped.  Old slots need to be
-	 * un-mapped and re-mapped if their base changes.  Since base change
-	 * unmapping is handled above with slot deletion, mapping alone is
-	 * needed here.  Anything else the iommu might care about for existing
-	 * slots (size changes, userspace addr changes and read-only flag
-	 * changes) is disallowed above, so any other attribute changes getting
-	 * here can be skipped.
-	 */
-	if ((change == KVM_MR_CREATE) || (change == KVM_MR_MOVE)) {
-		r = kvm_iommu_map_pages(kvm, &new);
-		if (r)
-			goto out_slots;
-	}
-
 	/* actual memory is freed via old in kvm_free_physmem_slot below */
 	if (change == KVM_MR_DELETE) {
 		new.dirty_bitmap = NULL;
@@ -901,6 +886,20 @@ int __kvm_set_memory_region(struct kvm *kvm,
 	kvm_free_physmem_slot(&old, &new);
 	kfree(old_memslots);
 
+	/*
+	 * IOMMU mapping:  New slots need to be mapped.  Old slots need to be
+	 * un-mapped and re-mapped if their base changes.  Since base change
+	 * unmapping is handled above with slot deletion, mapping alone is
+	 * needed here.  Anything else the iommu might care about for existing
+	 * slots (size changes, userspace addr changes and read-only flag
+	 * changes) is disallowed above, so any other attribute changes getting
+	 * here can be skipped.
+	 */
+	if ((change == KVM_MR_CREATE) || (change == KVM_MR_MOVE)) {
+		r = kvm_iommu_map_pages(kvm, &new);
+		return r;
+	}
+
 	return 0;
 
 out_slots:
-- 
cgit 


From 687da132234feb70748df04a007bc1820f392254 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 1 Oct 2013 16:45:43 +0300
Subject: mac80211: implement SMPS for AP

When the driver requests to move to STATIC or DYNAMIC SMPS,
we send an action frame to each associated station and
reconfigure the channel context / driver.
Of course, non-MIMO stations are ignored.

The beacon isn't updated. The association response will
include the original capabilities. Stations that associate
while in non-OFF SMPS mode will get an action frame right
after association to inform them about our current state.
Note that we wait until the end of the EAPOL. Sending an
action frame before the EAPOL is finished can be an issue
for a few clients. Clients aren't likely to send EAPOL
frames in MIMO anyway.

When the SMPS configuration gets more permissive (e.g.
STATIC -> OFF), we don't wake up stations that are asleep
We remember that they don't know about the change and send
the action frame when they wake up.

When the SMPS configuration gets more restrictive (e.g.
OFF -> STATIC), we set the TIM bit for every sleeping STA.
uAPSD stations might send MIMO until they poll the action
frame, but this is for a short period of time.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
[fix vht streams loop, initialisation]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/cfg.c            | 108 ++++++++++++++++++++++++++++++++++++++++--
 net/mac80211/debugfs_netdev.c |  25 ++++++----
 net/mac80211/ht.c             |  41 ++++++++++++----
 net/mac80211/ieee80211_i.h    |  15 ++++--
 net/mac80211/iface.c          |   3 ++
 net/mac80211/mlme.c           |   2 +-
 net/mac80211/sta_info.c       |  72 ++++++++++++++++++++++++++++
 net/mac80211/sta_info.h       |   5 ++
 net/mac80211/status.c         |  31 +++++++-----
 net/mac80211/util.c           |  25 ++++++++++
 10 files changed, 289 insertions(+), 38 deletions(-)

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index ac28af74a414..4a3d5a414a25 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1059,6 +1059,7 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
 	/* abort any running channel switch */
 	sdata->vif.csa_active = false;
 	cancel_work_sync(&sdata->csa_finalize_work);
+	cancel_work_sync(&sdata->u.ap.request_smps_work);
 
 	/* turn off carrier for this interface and dependent VLANs */
 	list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
@@ -1553,6 +1554,20 @@ static int ieee80211_change_station(struct wiphy *wiphy,
 
 	mutex_unlock(&local->sta_mtx);
 
+	if ((sdata->vif.type == NL80211_IFTYPE_AP ||
+	     sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
+	    sta->known_smps_mode != sta->sdata->bss->req_smps &&
+	    test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
+	    sta_info_tx_streams(sta) != 1) {
+		ht_dbg(sta->sdata,
+		       "%pM just authorized and MIMO capable - update SMPS\n",
+		       sta->sta.addr);
+		ieee80211_send_smps_action(sta->sdata,
+			sta->sdata->bss->req_smps,
+			sta->sta.addr,
+			sta->sdata->vif.bss_conf.bssid);
+	}
+
 	if (sdata->vif.type == NL80211_IFTYPE_STATION &&
 	    params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
 		ieee80211_recalc_ps(local, -1);
@@ -2337,8 +2352,92 @@ static int ieee80211_testmode_dump(struct wiphy *wiphy,
 }
 #endif
 
-int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
-			     enum ieee80211_smps_mode smps_mode)
+int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
+				enum ieee80211_smps_mode smps_mode)
+{
+	struct sta_info *sta;
+	enum ieee80211_smps_mode old_req;
+	int i;
+
+	if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
+		return -EINVAL;
+
+	if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
+		return 0;
+
+	old_req = sdata->u.ap.req_smps;
+	sdata->u.ap.req_smps = smps_mode;
+
+	/* AUTOMATIC doesn't mean much for AP - don't allow it */
+	if (old_req == smps_mode ||
+	    smps_mode == IEEE80211_SMPS_AUTOMATIC)
+		return 0;
+
+	 /* If no associated stations, there's no need to do anything */
+	if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
+		sdata->smps_mode = smps_mode;
+		ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
+		return 0;
+	}
+
+	ht_dbg(sdata,
+	       "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
+	       smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
+
+	mutex_lock(&sdata->local->sta_mtx);
+	for (i = 0; i < STA_HASH_SIZE; i++) {
+		for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
+				lockdep_is_held(&sdata->local->sta_mtx));
+		     sta;
+		     sta = rcu_dereference_protected(sta->hnext,
+				lockdep_is_held(&sdata->local->sta_mtx))) {
+			/*
+			 * Only stations associated to our AP and
+			 * associated VLANs
+			 */
+			if (sta->sdata->bss != &sdata->u.ap)
+				continue;
+
+			/* This station doesn't support MIMO - skip it */
+			if (sta_info_tx_streams(sta) == 1)
+				continue;
+
+			/*
+			 * Don't wake up a STA just to send the action frame
+			 * unless we are getting more restrictive.
+			 */
+			if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
+			    !ieee80211_smps_is_restrictive(sta->known_smps_mode,
+							   smps_mode)) {
+				ht_dbg(sdata,
+				       "Won't send SMPS to sleeping STA %pM\n",
+				       sta->sta.addr);
+				continue;
+			}
+
+			/*
+			 * If the STA is not authorized, wait until it gets
+			 * authorized and the action frame will be sent then.
+			 */
+			if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
+				continue;
+
+			ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
+			ieee80211_send_smps_action(sdata, smps_mode,
+						   sta->sta.addr,
+						   sdata->vif.bss_conf.bssid);
+		}
+	}
+	mutex_unlock(&sdata->local->sta_mtx);
+
+	sdata->smps_mode = smps_mode;
+	ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
+
+	return 0;
+}
+
+int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
+				 enum ieee80211_smps_mode smps_mode)
 {
 	const u8 *ap;
 	enum ieee80211_smps_mode old_req;
@@ -2346,6 +2445,9 @@ int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
 
 	lockdep_assert_held(&sdata->wdev.mtx);
 
+	if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
+		return -EINVAL;
+
 	old_req = sdata->u.mgd.req_smps;
 	sdata->u.mgd.req_smps = smps_mode;
 
@@ -2402,7 +2504,7 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
 
 	/* no change, but if automatic follow powersave */
 	sdata_lock(sdata);
-	__ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
+	__ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
 	sdata_unlock(sdata);
 
 	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index cafe614ef93d..04b5a14c8a05 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -224,12 +224,15 @@ static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
 	     smps_mode == IEEE80211_SMPS_AUTOMATIC))
 		return -EINVAL;
 
-	/* supported only on managed interfaces for now */
-	if (sdata->vif.type != NL80211_IFTYPE_STATION)
+	if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+	    sdata->vif.type != NL80211_IFTYPE_AP)
 		return -EOPNOTSUPP;
 
 	sdata_lock(sdata);
-	err = __ieee80211_request_smps(sdata, smps_mode);
+	if (sdata->vif.type == NL80211_IFTYPE_STATION)
+		err = __ieee80211_request_smps_mgd(sdata, smps_mode);
+	else
+		err = __ieee80211_request_smps_ap(sdata, smps_mode);
 	sdata_unlock(sdata);
 
 	return err;
@@ -245,12 +248,15 @@ static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
 static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata,
 				     char *buf, int buflen)
 {
-	if (sdata->vif.type != NL80211_IFTYPE_STATION)
-		return -EOPNOTSUPP;
-
-	return snprintf(buf, buflen, "request: %s\nused: %s\n",
-			smps_modes[sdata->u.mgd.req_smps],
-			smps_modes[sdata->smps_mode]);
+	if (sdata->vif.type == NL80211_IFTYPE_STATION)
+		return snprintf(buf, buflen, "request: %s\nused: %s\n",
+				smps_modes[sdata->u.mgd.req_smps],
+				smps_modes[sdata->smps_mode]);
+	if (sdata->vif.type == NL80211_IFTYPE_AP)
+		return snprintf(buf, buflen, "request: %s\nused: %s\n",
+				smps_modes[sdata->u.ap.req_smps],
+				smps_modes[sdata->smps_mode]);
+	return -EINVAL;
 }
 
 static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
@@ -563,6 +569,7 @@ static void add_sta_files(struct ieee80211_sub_if_data *sdata)
 static void add_ap_files(struct ieee80211_sub_if_data *sdata)
 {
 	DEBUGFS_ADD(num_mcast_sta);
+	DEBUGFS_ADD_MODE(smps, 0600);
 	DEBUGFS_ADD(num_sta_ps);
 	DEBUGFS_ADD(dtim_count);
 	DEBUGFS_ADD(num_buffered_multicast);
diff --git a/net/mac80211/ht.c b/net/mac80211/ht.c
index 529bf58bc145..9a8be8f69224 100644
--- a/net/mac80211/ht.c
+++ b/net/mac80211/ht.c
@@ -448,14 +448,25 @@ int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
 	return 0;
 }
 
-void ieee80211_request_smps_work(struct work_struct *work)
+void ieee80211_request_smps_mgd_work(struct work_struct *work)
 {
 	struct ieee80211_sub_if_data *sdata =
 		container_of(work, struct ieee80211_sub_if_data,
 			     u.mgd.request_smps_work);
 
 	sdata_lock(sdata);
-	__ieee80211_request_smps(sdata, sdata->u.mgd.driver_smps_mode);
+	__ieee80211_request_smps_mgd(sdata, sdata->u.mgd.driver_smps_mode);
+	sdata_unlock(sdata);
+}
+
+void ieee80211_request_smps_ap_work(struct work_struct *work)
+{
+	struct ieee80211_sub_if_data *sdata =
+		container_of(work, struct ieee80211_sub_if_data,
+			     u.ap.request_smps_work);
+
+	sdata_lock(sdata);
+	__ieee80211_request_smps_ap(sdata, sdata->u.ap.driver_smps_mode);
 	sdata_unlock(sdata);
 }
 
@@ -464,19 +475,29 @@ void ieee80211_request_smps(struct ieee80211_vif *vif,
 {
 	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
 
-	if (WARN_ON(vif->type != NL80211_IFTYPE_STATION))
+	if (WARN_ON_ONCE(vif->type != NL80211_IFTYPE_STATION &&
+			 vif->type != NL80211_IFTYPE_AP))
 		return;
 
 	if (WARN_ON(smps_mode == IEEE80211_SMPS_OFF))
 		smps_mode = IEEE80211_SMPS_AUTOMATIC;
 
-	if (sdata->u.mgd.driver_smps_mode == smps_mode)
-		return;
-
-	sdata->u.mgd.driver_smps_mode = smps_mode;
-
-	ieee80211_queue_work(&sdata->local->hw,
-			     &sdata->u.mgd.request_smps_work);
+	if (vif->type == NL80211_IFTYPE_STATION) {
+		if (sdata->u.mgd.driver_smps_mode == smps_mode)
+			return;
+		sdata->u.mgd.driver_smps_mode = smps_mode;
+		ieee80211_queue_work(&sdata->local->hw,
+				     &sdata->u.mgd.request_smps_work);
+	} else {
+		/* AUTOMATIC is meaningless in AP mode */
+		if (WARN_ON_ONCE(smps_mode == IEEE80211_SMPS_AUTOMATIC))
+			return;
+		if (sdata->u.ap.driver_smps_mode == smps_mode)
+			return;
+		sdata->u.ap.driver_smps_mode = smps_mode;
+		ieee80211_queue_work(&sdata->local->hw,
+				     &sdata->u.ap.request_smps_work);
+	}
 }
 /* this might change ... don't want non-open drivers using it */
 EXPORT_SYMBOL_GPL(ieee80211_request_smps);
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 3a87c8976a32..8340d4939f1b 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -262,6 +262,10 @@ struct ieee80211_if_ap {
 
 	struct ps_data ps;
 	atomic_t num_mcast_sta; /* number of stations receiving multicast */
+	enum ieee80211_smps_mode req_smps, /* requested smps mode */
+			 driver_smps_mode; /* smps mode request */
+
+	struct work_struct request_smps_work;
 };
 
 struct ieee80211_if_wds {
@@ -1435,7 +1439,10 @@ void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
 			       enum ieee80211_smps_mode smps, const u8 *da,
 			       const u8 *bssid);
-void ieee80211_request_smps_work(struct work_struct *work);
+void ieee80211_request_smps_ap_work(struct work_struct *work);
+void ieee80211_request_smps_mgd_work(struct work_struct *work);
+bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
+				   enum ieee80211_smps_mode smps_mode_new);
 
 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
 				     u16 initiator, u16 reason, bool stop);
@@ -1653,8 +1660,10 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
 			    struct ieee802_11_elems *elems,
 			    enum ieee80211_band band, u32 *basic_rates);
-int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
-			     enum ieee80211_smps_mode smps_mode);
+int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
+				 enum ieee80211_smps_mode smps_mode);
+int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
+				enum ieee80211_smps_mode smps_mode);
 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
 
 size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index e48f103b9ade..ff101ea1d9ae 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1293,7 +1293,10 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
 	case NL80211_IFTYPE_AP:
 		skb_queue_head_init(&sdata->u.ap.ps.bc_buf);
 		INIT_LIST_HEAD(&sdata->u.ap.vlans);
+		INIT_WORK(&sdata->u.ap.request_smps_work,
+			  ieee80211_request_smps_ap_work);
 		sdata->vif.bss_conf.bssid = sdata->vif.addr;
+		sdata->u.ap.req_smps = IEEE80211_SMPS_OFF;
 		break;
 	case NL80211_IFTYPE_P2P_CLIENT:
 		type = NL80211_IFTYPE_STATION;
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 91cc8281e266..5cc1c274dd61 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -3499,7 +3499,7 @@ void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
 		  ieee80211_beacon_connection_loss_work);
 	INIT_WORK(&ifmgd->csa_connection_drop_work,
 		  ieee80211_csa_connection_drop_work);
-	INIT_WORK(&ifmgd->request_smps_work, ieee80211_request_smps_work);
+	INIT_WORK(&ifmgd->request_smps_work, ieee80211_request_smps_mgd_work);
 	setup_timer(&ifmgd->timer, ieee80211_sta_timer,
 		    (unsigned long) sdata);
 	setup_timer(&ifmgd->bcn_mon_timer, ieee80211_sta_bcn_mon_timer,
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index aeb967a0aeed..1eb66e26e49d 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -385,6 +385,30 @@ struct sta_info *sta_info_alloc(struct ieee80211_sub_if_data *sdata,
 		sta->last_seq_ctrl[i] = cpu_to_le16(USHRT_MAX);
 
 	sta->sta.smps_mode = IEEE80211_SMPS_OFF;
+	if (sdata->vif.type == NL80211_IFTYPE_AP ||
+	    sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
+		struct ieee80211_supported_band *sband =
+			local->hw.wiphy->bands[ieee80211_get_sdata_band(sdata)];
+		u8 smps = (sband->ht_cap.cap & IEEE80211_HT_CAP_SM_PS) >>
+				IEEE80211_HT_CAP_SM_PS_SHIFT;
+		/*
+		 * Assume that hostapd advertises our caps in the beacon and
+		 * this is the known_smps_mode for a station that just assciated
+		 */
+		switch (smps) {
+		case WLAN_HT_SMPS_CONTROL_DISABLED:
+			sta->known_smps_mode = IEEE80211_SMPS_OFF;
+			break;
+		case WLAN_HT_SMPS_CONTROL_STATIC:
+			sta->known_smps_mode = IEEE80211_SMPS_STATIC;
+			break;
+		case WLAN_HT_SMPS_CONTROL_DYNAMIC:
+			sta->known_smps_mode = IEEE80211_SMPS_DYNAMIC;
+			break;
+		default:
+			WARN_ON(1);
+		}
+	}
 
 	sta_dbg(sdata, "Allocated STA %pM\n", sta->sta.addr);
 
@@ -1069,6 +1093,19 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta)
 
 	ieee80211_add_pending_skbs_fn(local, &pending, clear_sta_ps_flags, sta);
 
+	/* This station just woke up and isn't aware of our SMPS state */
+	if (!ieee80211_smps_is_restrictive(sta->known_smps_mode,
+					   sdata->smps_mode) &&
+	    sta->known_smps_mode != sdata->bss->req_smps &&
+	    sta_info_tx_streams(sta) != 1) {
+		ht_dbg(sdata,
+		       "%pM just woke up and MIMO capable - update SMPS\n",
+		       sta->sta.addr);
+		ieee80211_send_smps_action(sdata, sdata->bss->req_smps,
+					   sta->sta.addr,
+					   sdata->vif.bss_conf.bssid);
+	}
+
 	local->total_ps_buffered -= buffered;
 
 	sta_info_recalc_tim(sta);
@@ -1520,3 +1557,38 @@ int sta_info_move_state(struct sta_info *sta,
 
 	return 0;
 }
+
+u8 sta_info_tx_streams(struct sta_info *sta)
+{
+	struct ieee80211_sta_ht_cap *ht_cap = &sta->sta.ht_cap;
+	u8 rx_streams;
+
+	if (!sta->sta.ht_cap.ht_supported)
+		return 1;
+
+	if (sta->sta.vht_cap.vht_supported) {
+		int i;
+		u16 tx_mcs_map =
+			le16_to_cpu(sta->sta.vht_cap.vht_mcs.tx_mcs_map);
+
+		for (i = 7; i >= 0; i--)
+			if ((tx_mcs_map & (0x3 << (i * 2))) !=
+			    IEEE80211_VHT_MCS_NOT_SUPPORTED)
+				return i + 1;
+	}
+
+	if (ht_cap->mcs.rx_mask[3])
+		rx_streams = 4;
+	else if (ht_cap->mcs.rx_mask[2])
+		rx_streams = 3;
+	else if (ht_cap->mcs.rx_mask[1])
+		rx_streams = 2;
+	else
+		rx_streams = 1;
+
+	if (!(ht_cap->mcs.tx_params & IEEE80211_HT_MCS_TX_RX_DIFF))
+		return rx_streams;
+
+	return ((ht_cap->mcs.tx_params & IEEE80211_HT_MCS_TX_MAX_STREAMS_MASK)
+			>> IEEE80211_HT_MCS_TX_MAX_STREAMS_SHIFT) + 1;
+}
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 4208dbd5861f..3ef06a26b9cb 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -301,6 +301,8 @@ struct sta_ampdu_mlme {
  * @chains: chains ever used for RX from this station
  * @chain_signal_last: last signal (per chain)
  * @chain_signal_avg: signal average (per chain)
+ * @known_smps_mode: the smps_mode the client thinks we are in. Relevant for
+ *	AP only.
  */
 struct sta_info {
 	/* General information, mostly static */
@@ -411,6 +413,8 @@ struct sta_info {
 	unsigned int lost_packets;
 	unsigned int beacon_loss_count;
 
+	enum ieee80211_smps_mode known_smps_mode;
+
 	/* keep last! */
 	struct ieee80211_sta sta;
 };
@@ -613,6 +617,7 @@ void sta_set_rate_info_rx(struct sta_info *sta,
 			  struct rate_info *rinfo);
 void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
 			  unsigned long exp_time);
+u8 sta_info_tx_streams(struct sta_info *sta);
 
 void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta);
 void ieee80211_sta_ps_deliver_poll_response(struct sta_info *sta);
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index 368837fe3b80..1ced74c73d2f 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -191,29 +191,36 @@ static void ieee80211_frame_acked(struct sta_info *sta, struct sk_buff *skb)
 	if (ieee80211_is_action(mgmt->frame_control) &&
 	    mgmt->u.action.category == WLAN_CATEGORY_HT &&
 	    mgmt->u.action.u.ht_smps.action == WLAN_HT_ACTION_SMPS &&
-	    sdata->vif.type == NL80211_IFTYPE_STATION &&
 	    ieee80211_sdata_running(sdata)) {
-		/*
-		 * This update looks racy, but isn't -- if we come
-		 * here we've definitely got a station that we're
-		 * talking to, and on a managed interface that can
-		 * only be the AP. And the only other place updating
-		 * this variable in managed mode is before association.
-		 */
+		enum ieee80211_smps_mode smps_mode;
+
 		switch (mgmt->u.action.u.ht_smps.smps_control) {
 		case WLAN_HT_SMPS_CONTROL_DYNAMIC:
-			sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
+			smps_mode = IEEE80211_SMPS_DYNAMIC;
 			break;
 		case WLAN_HT_SMPS_CONTROL_STATIC:
-			sdata->smps_mode = IEEE80211_SMPS_STATIC;
+			smps_mode = IEEE80211_SMPS_STATIC;
 			break;
 		case WLAN_HT_SMPS_CONTROL_DISABLED:
 		default: /* shouldn't happen since we don't send that */
-			sdata->smps_mode = IEEE80211_SMPS_OFF;
+			smps_mode = IEEE80211_SMPS_OFF;
 			break;
 		}
 
-		ieee80211_queue_work(&local->hw, &sdata->recalc_smps);
+		if (sdata->vif.type == NL80211_IFTYPE_STATION) {
+			/*
+			 * This update looks racy, but isn't -- if we come
+			 * here we've definitely got a station that we're
+			 * talking to, and on a managed interface that can
+			 * only be the AP. And the only other place updating
+			 * this variable in managed mode is before association.
+			 */
+			sdata->smps_mode = smps_mode;
+			ieee80211_queue_work(&local->hw, &sdata->recalc_smps);
+		} else if (sdata->vif.type == NL80211_IFTYPE_AP ||
+			   sdata->vif.type == NL80211_IFTYPE_AP_VLAN) {
+			sta->known_smps_mode = smps_mode;
+		}
 	}
 }
 
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 550a6880625d..b763e4ccaf5e 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -2353,3 +2353,28 @@ u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c)
 
 	return ret;
 }
+
+/*
+ * Returns true if smps_mode_new is strictly more restrictive than
+ * smps_mode_old.
+ */
+bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
+				   enum ieee80211_smps_mode smps_mode_new)
+{
+	if (WARN_ON_ONCE(smps_mode_old == IEEE80211_SMPS_AUTOMATIC ||
+			 smps_mode_new == IEEE80211_SMPS_AUTOMATIC))
+		return false;
+
+	switch (smps_mode_old) {
+	case IEEE80211_SMPS_STATIC:
+		return false;
+	case IEEE80211_SMPS_DYNAMIC:
+		return smps_mode_new == IEEE80211_SMPS_STATIC;
+	case IEEE80211_SMPS_OFF:
+		return smps_mode_new != IEEE80211_SMPS_OFF;
+	default:
+		WARN_ON(1);
+	}
+
+	return false;
+}
-- 
cgit 


From 5336fa88e8ac6b666a3db9902a4797d94d86a702 Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Mon, 7 Oct 2013 18:41:05 +0200
Subject: nl80211/cfg80211: enable DFS for IBSS mode

To use DFS in IBSS mode, userspace is required to react to radar events.
It can inform nl80211 that it is capable of doing so by adding a
NL80211_ATTR_HANDLE_DFS attribute when joining the IBSS.

This attribute is supplied to let the kernelspace know that the
userspace application can and will handle radar events, e.g. by
intiating channel switches to a valid channel. DFS channels may
only be used if this attribute is supplied and the driver supports
it. Driver support will be checked even if a channel without DFS
will be initially joined, as a DFS channel may be chosen later.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
[fix attribute name in commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 include/net/cfg80211.h       |  6 ++++++
 include/uapi/linux/nl80211.h |  9 +++++++++
 net/wireless/chan.c          |  3 ++-
 net/wireless/ibss.c          | 24 ++++++++++++++++++++----
 net/wireless/nl80211.c       |  8 ++++++--
 net/wireless/util.c          | 14 ++++++++++----
 6 files changed, 53 insertions(+), 11 deletions(-)

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 5db5fe24eff6..b1acf36e5f45 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1664,6 +1664,9 @@ struct cfg80211_disassoc_request {
  *	sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
  *	required to assume that the port is unauthorized until authorized by
  *	user space. Otherwise, port is marked authorized by default.
+ * @userspace_handles_dfs: whether user space controls DFS operation, i.e.
+ *	changes the channel when a radar is detected. This is required
+ *	to operate on DFS channels.
  * @basic_rates: bitmap of basic rates to use when creating the IBSS
  * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
  * @ht_capa:  HT Capabilities over-rides.  Values set in ht_capa_mask
@@ -1681,6 +1684,7 @@ struct cfg80211_ibss_params {
 	bool channel_fixed;
 	bool privacy;
 	bool control_port;
+	bool userspace_handles_dfs;
 	int mcast_rate[IEEE80211_NUM_BANDS];
 	struct ieee80211_ht_cap ht_capa;
 	struct ieee80211_ht_cap ht_capa_mask;
@@ -3061,6 +3065,7 @@ struct cfg80211_cached_keys;
  * @conn: (private) cfg80211 software SME connection state machine data
  * @connect_keys: (private) keys to set after connection is established
  * @ibss_fixed: (private) IBSS is using fixed BSSID
+ * @ibss_dfs_possible: (private) IBSS may change to a DFS channel
  * @event_list: (private) list for internal event processing
  * @event_lock: (private) lock for event list
  */
@@ -3099,6 +3104,7 @@ struct wireless_dev {
 	struct ieee80211_channel *channel;
 
 	bool ibss_fixed;
+	bool ibss_dfs_possible;
 
 	bool ps;
 	int ps_timeout;
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index f2aef2a7a570..f752e9821e71 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -1501,6 +1501,13 @@ enum nl80211_commands {
  * @NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES: array of supported
  *      supported operating classes.
  *
+ * @NL80211_ATTR_HANDLE_DFS: A flag indicating whether user space
+ *	controls DFS operation in IBSS mode. If the flag is included in
+ *	%NL80211_CMD_JOIN_IBSS request, the driver will allow use of DFS
+ *	channels and reports radar events to userspace. Userspace is required
+ *	to react to radar events, e.g. initiate a channel switch or leave the
+ *	IBSS network.
+ *
  * @NL80211_ATTR_MAX: highest attribute number currently defined
  * @__NL80211_ATTR_AFTER_LAST: internal use
  */
@@ -1815,6 +1822,8 @@ enum nl80211_attrs {
 
 	NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES,
 
+	NL80211_ATTR_HANDLE_DFS,
+
 	/* add attributes here, update the policy in nl80211.c */
 
 	__NL80211_ATTR_AFTER_LAST,
diff --git a/net/wireless/chan.c b/net/wireless/chan.c
index 16f3c3a7b2c1..9b8cc877eb19 100644
--- a/net/wireless/chan.c
+++ b/net/wireless/chan.c
@@ -504,7 +504,8 @@ cfg80211_get_chan_state(struct wireless_dev *wdev,
 	case NL80211_IFTYPE_ADHOC:
 		if (wdev->current_bss) {
 			*chan = wdev->current_bss->pub.channel;
-			*chanmode = wdev->ibss_fixed
+			*chanmode = (wdev->ibss_fixed &&
+				     !wdev->ibss_dfs_possible)
 				  ? CHAN_MODE_SHARED
 				  : CHAN_MODE_EXCLUSIVE;
 			return;
diff --git a/net/wireless/ibss.c b/net/wireless/ibss.c
index 39bff7d36768..fa7461b6ba39 100644
--- a/net/wireless/ibss.c
+++ b/net/wireless/ibss.c
@@ -83,6 +83,8 @@ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
 			 struct cfg80211_cached_keys *connkeys)
 {
 	struct wireless_dev *wdev = dev->ieee80211_ptr;
+	struct ieee80211_channel *check_chan;
+	u8 radar_detect_width = 0;
 	int err;
 
 	ASSERT_WDEV_LOCK(wdev);
@@ -114,14 +116,28 @@ int __cfg80211_join_ibss(struct cfg80211_registered_device *rdev,
 	wdev->connect_keys = connkeys;
 
 	wdev->ibss_fixed = params->channel_fixed;
+	wdev->ibss_dfs_possible = params->userspace_handles_dfs;
 #ifdef CONFIG_CFG80211_WEXT
 	wdev->wext.ibss.chandef = params->chandef;
 #endif
+	check_chan = params->chandef.chan;
+	if (params->userspace_handles_dfs) {
+		/* use channel NULL to check for radar even if the current
+		 * channel is not a radar channel - it might decide to change
+		 * to DFS channel later.
+		 */
+		radar_detect_width = BIT(params->chandef.width);
+		check_chan = NULL;
+	}
+
+	err = cfg80211_can_use_iftype_chan(rdev, wdev, wdev->iftype,
+					   check_chan,
+					   (params->channel_fixed &&
+					    !radar_detect_width)
+					   ? CHAN_MODE_SHARED
+					   : CHAN_MODE_EXCLUSIVE,
+					   radar_detect_width);
 
-	err = cfg80211_can_use_chan(rdev, wdev, params->chandef.chan,
-				    params->channel_fixed
-				    ? CHAN_MODE_SHARED
-				    : CHAN_MODE_EXCLUSIVE);
 	if (err) {
 		wdev->connect_keys = NULL;
 		return err;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 460638ac2d73..7502d33a3a70 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -356,6 +356,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
 	[NL80211_ATTR_CSA_C_OFF_PRESP] = { .type = NLA_U16 },
 	[NL80211_ATTR_STA_SUPPORTED_CHANNELS] = { .type = NLA_BINARY },
 	[NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES] = { .type = NLA_BINARY },
+	[NL80211_ATTR_HANDLE_DFS] = { .type = NLA_FLAG },
 };
 
 /* policy for the key attributes */
@@ -5768,9 +5769,9 @@ skip_beacons:
 	if (!cfg80211_reg_can_beacon(&rdev->wiphy, &params.chandef))
 		return -EINVAL;
 
-	/* DFS channels are only supported for AP/P2P GO ... for now. */
 	if (dev->ieee80211_ptr->iftype == NL80211_IFTYPE_AP ||
-	    dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO) {
+	    dev->ieee80211_ptr->iftype == NL80211_IFTYPE_P2P_GO ||
+	    dev->ieee80211_ptr->iftype == NL80211_IFTYPE_ADHOC) {
 		err = cfg80211_chandef_dfs_required(wdev->wiphy,
 						    &params.chandef);
 		if (err < 0) {
@@ -6602,6 +6603,9 @@ static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
 	ibss.control_port =
 		nla_get_flag(info->attrs[NL80211_ATTR_CONTROL_PORT]);
 
+	ibss.userspace_handles_dfs =
+		nla_get_flag(info->attrs[NL80211_ATTR_HANDLE_DFS]);
+
 	err = cfg80211_join_ibss(rdev, dev, &ibss, connkeys);
 	if (err)
 		kfree(connkeys);
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 3c8be6104ba4..935dea9485da 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -1249,7 +1249,7 @@ int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev,
 	enum cfg80211_chan_mode chmode;
 	int num_different_channels = 0;
 	int total = 1;
-	bool radar_required;
+	bool radar_required = false;
 	int i, j;
 
 	ASSERT_RTNL();
@@ -1264,14 +1264,20 @@ int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev,
 	case NL80211_IFTYPE_MESH_POINT:
 	case NL80211_IFTYPE_P2P_GO:
 	case NL80211_IFTYPE_WDS:
-		radar_required = !!(chan &&
-				    (chan->flags & IEEE80211_CHAN_RADAR));
+		/* if the interface could potentially choose a DFS channel,
+		 * then mark DFS as required.
+		 */
+		if (!chan) {
+			if (chanmode != CHAN_MODE_UNDEFINED && radar_detect)
+				radar_required = true;
+			break;
+		}
+		radar_required = !!(chan->flags & IEEE80211_CHAN_RADAR);
 		break;
 	case NL80211_IFTYPE_P2P_CLIENT:
 	case NL80211_IFTYPE_STATION:
 	case NL80211_IFTYPE_P2P_DEVICE:
 	case NL80211_IFTYPE_MONITOR:
-		radar_required = false;
 		break;
 	case NUM_NL80211_IFTYPES:
 	case NL80211_IFTYPE_UNSPECIFIED:
-- 
cgit 


From 8e8d347da7613d0315295e730f2eecf9fe6f36ba Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Mon, 7 Oct 2013 18:41:06 +0200
Subject: mac80211: enable DFS for IBSS mode

Allow changing to DFS channels if the channel is available for
beaconing and userspace controls DFS operation.

Channel switch announcement from other stations on DFS channels will
be interpreted as radar event. These channels will then be marked as
unvailable.

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/ibss.c        | 49 +++++++++++++++++++++++++++++++++++++++++-----
 net/mac80211/ieee80211_i.h |  1 +
 2 files changed, 45 insertions(+), 5 deletions(-)

diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 21a0b8835cb3..275bbb2c1a5a 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -229,6 +229,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	struct beacon_data *presp;
 	enum nl80211_bss_scan_width scan_width;
 	bool have_higher_than_11mbit;
+	bool radar_required = false;
 	int err;
 
 	sdata_assert_lock(sdata);
@@ -273,6 +274,23 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 		}
 		chandef.width = NL80211_CHAN_WIDTH_20;
 		chandef.center_freq1 = chan->center_freq;
+		/* check again for downgraded chandef */
+		if (!cfg80211_reg_can_beacon(local->hw.wiphy, &chandef)) {
+			sdata_info(sdata,
+				   "Failed to join IBSS, beacons forbidden\n");
+			return;
+		}
+	}
+
+	err = cfg80211_chandef_dfs_required(sdata->local->hw.wiphy,
+					    &chandef);
+	if (err > 0) {
+		if (!ifibss->userspace_handles_dfs) {
+			sdata_info(sdata,
+				   "Failed to join IBSS, DFS channel without control program\n");
+			return;
+		}
+		radar_required = true;
 	}
 
 	ieee80211_vif_release_channel(sdata);
@@ -297,6 +315,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 	rcu_assign_pointer(ifibss->presp, presp);
 	mgmt = (void *)presp->head;
 
+	sdata->radar_required = radar_required;
 	sdata->vif.bss_conf.enable_beacon = true;
 	sdata->vif.bss_conf.beacon_int = beacon_int;
 	sdata->vif.bss_conf.basic_rates = basic_rates;
@@ -796,6 +815,21 @@ static void ieee80211_csa_connection_drop_work(struct work_struct *work)
 	ieee80211_queue_work(&sdata->local->hw, &sdata->work);
 }
 
+static void ieee80211_ibss_csa_mark_radar(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+	int err;
+
+	/* if the current channel is a DFS channel, mark the channel as
+	 * unavailable.
+	 */
+	err = cfg80211_chandef_dfs_required(sdata->local->hw.wiphy,
+					    &ifibss->chandef);
+	if (err > 0)
+		cfg80211_radar_event(sdata->local->hw.wiphy, &ifibss->chandef,
+				     GFP_ATOMIC);
+}
+
 static bool
 ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 				  struct ieee802_11_elems *elems,
@@ -880,8 +914,7 @@ ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 		goto disconnect;
 	}
 
-	if (!cfg80211_chandef_usable(sdata->local->hw.wiphy, &params.chandef,
-				     IEEE80211_CHAN_DISABLED)) {
+	if (!cfg80211_reg_can_beacon(sdata->local->hw.wiphy, &params.chandef)) {
 		sdata_info(sdata,
 			   "IBSS %pM switches to unsupported channel (%d MHz, width:%d, CF1/2: %d/%d MHz), disconnecting\n",
 			   ifibss->bssid,
@@ -897,10 +930,11 @@ ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 	if (err < 0)
 		goto disconnect;
 	if (err) {
-		params.radar_required = true;
+		/* IBSS-DFS only allowed with a control program */
+		if (!ifibss->userspace_handles_dfs)
+			goto disconnect;
 
-		/* TODO: IBSS-DFS not (yet) supported, disconnect. */
-		goto disconnect;
+		params.radar_required = true;
 	}
 
 	rcu_read_lock();
@@ -947,12 +981,16 @@ ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 	ieee80211_bss_info_change_notify(sdata, err);
 	drv_channel_switch_beacon(sdata, &params.chandef);
 
+	ieee80211_ibss_csa_mark_radar(sdata);
+
 	return true;
 disconnect:
 	ibss_dbg(sdata, "Can't handle channel switch, disconnect\n");
 	ieee80211_queue_work(&sdata->local->hw,
 			     &ifibss->csa_connection_drop_work);
 
+	ieee80211_ibss_csa_mark_radar(sdata);
+
 	return true;
 }
 
@@ -1688,6 +1726,7 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
 
 	sdata->u.ibss.privacy = params->privacy;
 	sdata->u.ibss.control_port = params->control_port;
+	sdata->u.ibss.userspace_handles_dfs = params->userspace_handles_dfs;
 	sdata->u.ibss.basic_rates = params->basic_rates;
 
 	/* fix basic_rates if channel does not support these rates */
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 8340d4939f1b..ff3c310142b5 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -501,6 +501,7 @@ struct ieee80211_if_ibss {
 	bool privacy;
 
 	bool control_port;
+	bool userspace_handles_dfs;
 
 	u8 bssid[ETH_ALEN] __aligned(2);
 	u8 ssid[IEEE80211_MAX_SSID_LEN];
-- 
cgit 


From 919be62b97e43e48c97a35ff82add1719d56553e Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 14 Oct 2013 10:05:16 +0200
Subject: mac80211: add missing IEEE80211_HW_SUPPORTS_HT_CCK_RATES docs

Document the IEEE80211_HW_SUPPORTS_HT_CCK_RATES flag.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 include/net/mac80211.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index f386c480e134..ecba8a10acf4 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -1503,6 +1503,10 @@ struct ieee80211_tx_control {
  * @IEEE80211_HW_TIMING_BEACON_ONLY: Use sync timing from beacon frames
  *	only, to allow getting TBTT of a DTIM beacon.
  *
+ * @IEEE80211_HW_SUPPORTS_HT_CCK_RATES: Hardware supports mixing HT/CCK rates
+ *	and can cope with CCK rates in an aggregation session (e.g. by not
+ *	using aggregation for such frames.)
+ *
  * @IEEE80211_HW_CHANCTX_STA_CSA: Support 802.11h based channel-switch (CSA)
  *	for a single active channel while using channel contexts. When support
  *	is not enabled the default action is to disconnect when getting the
-- 
cgit 


From ee26eaefe3fc22fdf60b6bed986a55dafda07770 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 14 Oct 2013 16:11:52 +0200
Subject: cfg80211: fix docbook references

Two functions were changed but their references weren't
updated in the docbook template, propagate the change.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 Documentation/DocBook/80211.tmpl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/DocBook/80211.tmpl b/Documentation/DocBook/80211.tmpl
index f403ec3c5c9a..46ad6faee9ab 100644
--- a/Documentation/DocBook/80211.tmpl
+++ b/Documentation/DocBook/80211.tmpl
@@ -152,8 +152,8 @@
 !Finclude/net/cfg80211.h cfg80211_scan_request
 !Finclude/net/cfg80211.h cfg80211_scan_done
 !Finclude/net/cfg80211.h cfg80211_bss
-!Finclude/net/cfg80211.h cfg80211_inform_bss_frame
-!Finclude/net/cfg80211.h cfg80211_inform_bss
+!Finclude/net/cfg80211.h cfg80211_inform_bss_width_frame
+!Finclude/net/cfg80211.h cfg80211_inform_bss_width
 !Finclude/net/cfg80211.h cfg80211_unlink_bss
 !Finclude/net/cfg80211.h cfg80211_find_ie
 !Finclude/net/cfg80211.h ieee80211_bss_get_ie
-- 
cgit 


From 5e7ca3937fbeaedd7383058ea2bd9af1089ef81a Mon Sep 17 00:00:00 2001
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Wed, 16 Oct 2013 13:53:39 +0300
Subject: net: rfkill: gpio: convert to resource managed allocation

And remove now unneeded resource freeing.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/rfkill/rfkill-gpio.c | 75 +++++++++++++-----------------------------------
 1 file changed, 20 insertions(+), 55 deletions(-)

diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c
index fb076cd6f808..070580619e3d 100644
--- a/net/rfkill/rfkill-gpio.c
+++ b/net/rfkill/rfkill-gpio.c
@@ -97,7 +97,7 @@ static int rfkill_gpio_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	rfkill = kzalloc(sizeof(*rfkill), GFP_KERNEL);
+	rfkill = devm_kzalloc(&pdev->dev, sizeof(*rfkill), GFP_KERNEL);
 	if (!rfkill)
 		return -ENOMEM;
 
@@ -105,89 +105,65 @@ static int rfkill_gpio_probe(struct platform_device *pdev)
 		ret = pdata->gpio_runtime_setup(pdev);
 		if (ret) {
 			pr_warn("%s: can't set up gpio\n", __func__);
-			goto fail_alloc;
+			return ret;
 		}
 	}
 
 	rfkill->pdata = pdata;
 
 	len = strlen(pdata->name);
-	rfkill->reset_name = kzalloc(len + 7, GFP_KERNEL);
-	if (!rfkill->reset_name) {
-		ret = -ENOMEM;
-		goto fail_alloc;
-	}
+	rfkill->reset_name = devm_kzalloc(&pdev->dev, len + 7, GFP_KERNEL);
+	if (!rfkill->reset_name)
+		return -ENOMEM;
 
-	rfkill->shutdown_name = kzalloc(len + 10, GFP_KERNEL);
-	if (!rfkill->shutdown_name) {
-		ret = -ENOMEM;
-		goto fail_reset_name;
-	}
+	rfkill->shutdown_name = devm_kzalloc(&pdev->dev, len + 10, GFP_KERNEL);
+	if (!rfkill->shutdown_name)
+		return -ENOMEM;
 
 	snprintf(rfkill->reset_name, len + 6 , "%s_reset", pdata->name);
 	snprintf(rfkill->shutdown_name, len + 9, "%s_shutdown", pdata->name);
 
 	if (pdata->power_clk_name) {
-		rfkill->pwr_clk = clk_get(&pdev->dev, pdata->power_clk_name);
+		rfkill->pwr_clk = devm_clk_get(&pdev->dev,
+						pdata->power_clk_name);
 		if (IS_ERR(rfkill->pwr_clk)) {
 			pr_warn("%s: can't find pwr_clk.\n", __func__);
-			ret = PTR_ERR(rfkill->pwr_clk);
-			goto fail_shutdown_name;
+			return PTR_ERR(rfkill->pwr_clk);
 		}
 	}
 
 	if (gpio_is_valid(pdata->reset_gpio)) {
-		ret = gpio_request(pdata->reset_gpio, rfkill->reset_name);
+		ret = devm_gpio_request(&pdev->dev, pdata->reset_gpio,
+					rfkill->reset_name);
 		if (ret) {
 			pr_warn("%s: failed to get reset gpio.\n", __func__);
-			goto fail_clock;
+			return ret;
 		}
 	}
 
 	if (gpio_is_valid(pdata->shutdown_gpio)) {
-		ret = gpio_request(pdata->shutdown_gpio, rfkill->shutdown_name);
+		ret = devm_gpio_request(&pdev->dev, pdata->shutdown_gpio,
+					rfkill->shutdown_name);
 		if (ret) {
 			pr_warn("%s: failed to get shutdown gpio.\n", __func__);
-			goto fail_reset;
+			return ret;
 		}
 	}
 
 	rfkill->rfkill_dev = rfkill_alloc(pdata->name, &pdev->dev, pdata->type,
 					  &rfkill_gpio_ops, rfkill);
-	if (!rfkill->rfkill_dev) {
-		ret = -ENOMEM;
-		goto fail_shutdown;
-	}
+	if (!rfkill->rfkill_dev)
+		return -ENOMEM;
 
 	ret = rfkill_register(rfkill->rfkill_dev);
 	if (ret < 0)
-		goto fail_rfkill;
+		return ret;
 
 	platform_set_drvdata(pdev, rfkill);
 
 	dev_info(&pdev->dev, "%s device registered.\n", pdata->name);
 
 	return 0;
-
-fail_rfkill:
-	rfkill_destroy(rfkill->rfkill_dev);
-fail_shutdown:
-	if (gpio_is_valid(pdata->shutdown_gpio))
-		gpio_free(pdata->shutdown_gpio);
-fail_reset:
-	if (gpio_is_valid(pdata->reset_gpio))
-		gpio_free(pdata->reset_gpio);
-fail_clock:
-	if (rfkill->pwr_clk)
-		clk_put(rfkill->pwr_clk);
-fail_shutdown_name:
-	kfree(rfkill->shutdown_name);
-fail_reset_name:
-	kfree(rfkill->reset_name);
-fail_alloc:
-	kfree(rfkill);
-
-	return ret;
 }
 
 static int rfkill_gpio_remove(struct platform_device *pdev)
@@ -199,17 +175,6 @@ static int rfkill_gpio_remove(struct platform_device *pdev)
 		pdata->gpio_runtime_close(pdev);
 	rfkill_unregister(rfkill->rfkill_dev);
 	rfkill_destroy(rfkill->rfkill_dev);
-	if (gpio_is_valid(rfkill->pdata->shutdown_gpio))
-		gpio_free(rfkill->pdata->shutdown_gpio);
-	if (gpio_is_valid(rfkill->pdata->reset_gpio))
-		gpio_free(rfkill->pdata->reset_gpio);
-	if (rfkill->pwr_clk && PWR_CLK_ENABLED(rfkill))
-		clk_disable(rfkill->pwr_clk);
-	if (rfkill->pwr_clk)
-		clk_put(rfkill->pwr_clk);
-	kfree(rfkill->shutdown_name);
-	kfree(rfkill->reset_name);
-	kfree(rfkill);
 
 	return 0;
 }
-- 
cgit 


From f02ae59b1230853693d09a1003075d671f1a6f7d Mon Sep 17 00:00:00 2001
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Wed, 16 Oct 2013 13:53:40 +0300
Subject: net: rfkill: gpio: clean up clock handling

Use a simple flag to see the state of the clock, and make
the clock available even without a name. Also, get rid of
HAVE_CLK dependency.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/rfkill/Kconfig       |  2 +-
 net/rfkill/rfkill-gpio.c | 35 ++++++++---------------------------
 2 files changed, 9 insertions(+), 28 deletions(-)

diff --git a/net/rfkill/Kconfig b/net/rfkill/Kconfig
index 78efe895b663..4c10e7e6c9f6 100644
--- a/net/rfkill/Kconfig
+++ b/net/rfkill/Kconfig
@@ -36,7 +36,7 @@ config RFKILL_REGULATOR
 
 config RFKILL_GPIO
 	tristate "GPIO RFKILL driver"
-	depends on RFKILL && GPIOLIB && HAVE_CLK
+	depends on RFKILL && GPIOLIB
 	default n
 	help
 	  If you say yes here you get support of a generic gpio RFKILL
diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c
index 070580619e3d..1d104e728ef9 100644
--- a/net/rfkill/rfkill-gpio.c
+++ b/net/rfkill/rfkill-gpio.c
@@ -27,24 +27,13 @@
 
 #include <linux/rfkill-gpio.h>
 
-enum rfkill_gpio_clk_state {
-	UNSPECIFIED = 0,
-	PWR_ENABLED,
-	PWR_DISABLED
-};
-
-#define PWR_CLK_SET(_RF, _EN) \
-	((_RF)->pwr_clk_enabled = (!(_EN) ? PWR_ENABLED : PWR_DISABLED))
-#define PWR_CLK_ENABLED(_RF) ((_RF)->pwr_clk_enabled == PWR_ENABLED)
-#define PWR_CLK_DISABLED(_RF) ((_RF)->pwr_clk_enabled != PWR_ENABLED)
-
 struct rfkill_gpio_data {
 	struct rfkill_gpio_platform_data	*pdata;
 	struct rfkill				*rfkill_dev;
 	char					*reset_name;
 	char					*shutdown_name;
-	enum rfkill_gpio_clk_state		pwr_clk_enabled;
-	struct clk				*pwr_clk;
+	struct clk				*clk;
+	bool					clk_enabled;
 };
 
 static int rfkill_gpio_set_power(void *data, bool blocked)
@@ -56,19 +45,18 @@ static int rfkill_gpio_set_power(void *data, bool blocked)
 			gpio_direction_output(rfkill->pdata->shutdown_gpio, 0);
 		if (gpio_is_valid(rfkill->pdata->reset_gpio))
 			gpio_direction_output(rfkill->pdata->reset_gpio, 0);
-		if (rfkill->pwr_clk && PWR_CLK_ENABLED(rfkill))
-			clk_disable(rfkill->pwr_clk);
+		if (!IS_ERR(rfkill->clk) && rfkill->clk_enabled)
+			clk_disable(rfkill->clk);
 	} else {
-		if (rfkill->pwr_clk && PWR_CLK_DISABLED(rfkill))
-			clk_enable(rfkill->pwr_clk);
+		if (!IS_ERR(rfkill->clk) && !rfkill->clk_enabled)
+			clk_enable(rfkill->clk);
 		if (gpio_is_valid(rfkill->pdata->reset_gpio))
 			gpio_direction_output(rfkill->pdata->reset_gpio, 1);
 		if (gpio_is_valid(rfkill->pdata->shutdown_gpio))
 			gpio_direction_output(rfkill->pdata->shutdown_gpio, 1);
 	}
 
-	if (rfkill->pwr_clk)
-		PWR_CLK_SET(rfkill, blocked);
+	rfkill->clk_enabled = blocked;
 
 	return 0;
 }
@@ -123,14 +111,7 @@ static int rfkill_gpio_probe(struct platform_device *pdev)
 	snprintf(rfkill->reset_name, len + 6 , "%s_reset", pdata->name);
 	snprintf(rfkill->shutdown_name, len + 9, "%s_shutdown", pdata->name);
 
-	if (pdata->power_clk_name) {
-		rfkill->pwr_clk = devm_clk_get(&pdev->dev,
-						pdata->power_clk_name);
-		if (IS_ERR(rfkill->pwr_clk)) {
-			pr_warn("%s: can't find pwr_clk.\n", __func__);
-			return PTR_ERR(rfkill->pwr_clk);
-		}
-	}
+	rfkill->clk = devm_clk_get(&pdev->dev, pdata->power_clk_name);
 
 	if (gpio_is_valid(pdata->reset_gpio)) {
 		ret = devm_gpio_request(&pdev->dev, pdata->reset_gpio,
-- 
cgit 


From 0be81727a48cc28c1219395f32da8ccc99d6c6d0 Mon Sep 17 00:00:00 2001
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Wed, 16 Oct 2013 13:53:41 +0300
Subject: net: rfkill: gpio: spinlock-safe GPIO access

This sets the direction of the gpio once when it's requested,
and uses the spinlock-safe gpio_set_state() to change the
state.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/rfkill/rfkill-gpio.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c
index 1d104e728ef9..aa4ac108c330 100644
--- a/net/rfkill/rfkill-gpio.c
+++ b/net/rfkill/rfkill-gpio.c
@@ -42,18 +42,18 @@ static int rfkill_gpio_set_power(void *data, bool blocked)
 
 	if (blocked) {
 		if (gpio_is_valid(rfkill->pdata->shutdown_gpio))
-			gpio_direction_output(rfkill->pdata->shutdown_gpio, 0);
+			gpio_set_value(rfkill->pdata->shutdown_gpio, 0);
 		if (gpio_is_valid(rfkill->pdata->reset_gpio))
-			gpio_direction_output(rfkill->pdata->reset_gpio, 0);
+			gpio_set_value(rfkill->pdata->reset_gpio, 0);
 		if (!IS_ERR(rfkill->clk) && rfkill->clk_enabled)
 			clk_disable(rfkill->clk);
 	} else {
 		if (!IS_ERR(rfkill->clk) && !rfkill->clk_enabled)
 			clk_enable(rfkill->clk);
 		if (gpio_is_valid(rfkill->pdata->reset_gpio))
-			gpio_direction_output(rfkill->pdata->reset_gpio, 1);
+			gpio_set_value(rfkill->pdata->reset_gpio, 1);
 		if (gpio_is_valid(rfkill->pdata->shutdown_gpio))
-			gpio_direction_output(rfkill->pdata->shutdown_gpio, 1);
+			gpio_set_value(rfkill->pdata->shutdown_gpio, 1);
 	}
 
 	rfkill->clk_enabled = blocked;
@@ -114,8 +114,8 @@ static int rfkill_gpio_probe(struct platform_device *pdev)
 	rfkill->clk = devm_clk_get(&pdev->dev, pdata->power_clk_name);
 
 	if (gpio_is_valid(pdata->reset_gpio)) {
-		ret = devm_gpio_request(&pdev->dev, pdata->reset_gpio,
-					rfkill->reset_name);
+		ret = devm_gpio_request_one(&pdev->dev, pdata->reset_gpio,
+					    0, rfkill->reset_name);
 		if (ret) {
 			pr_warn("%s: failed to get reset gpio.\n", __func__);
 			return ret;
@@ -123,8 +123,8 @@ static int rfkill_gpio_probe(struct platform_device *pdev)
 	}
 
 	if (gpio_is_valid(pdata->shutdown_gpio)) {
-		ret = devm_gpio_request(&pdev->dev, pdata->shutdown_gpio,
-					rfkill->shutdown_name);
+		ret = devm_gpio_request_one(&pdev->dev, pdata->shutdown_gpio,
+					    0, rfkill->shutdown_name);
 		if (ret) {
 			pr_warn("%s: failed to get shutdown gpio.\n", __func__);
 			return ret;
-- 
cgit 


From 262c91ee5e524238d4dabf908c88f8518ed334ce Mon Sep 17 00:00:00 2001
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Wed, 16 Oct 2013 13:53:42 +0300
Subject: net: rfkill: gpio: prepare for DT and ACPI support

This will add the relevant values like the gpios and the
type in rfkill_gpio_platform_data to the rfkill_gpio_data
structure. It will allow those values to be easily picked
from DT and ACPI tables later.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/rfkill/rfkill-gpio.c | 92 +++++++++++++++++++++++++++---------------------
 1 file changed, 51 insertions(+), 41 deletions(-)

diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c
index aa4ac108c330..2dd78c628d86 100644
--- a/net/rfkill/rfkill-gpio.c
+++ b/net/rfkill/rfkill-gpio.c
@@ -28,12 +28,17 @@
 #include <linux/rfkill-gpio.h>
 
 struct rfkill_gpio_data {
-	struct rfkill_gpio_platform_data	*pdata;
-	struct rfkill				*rfkill_dev;
-	char					*reset_name;
-	char					*shutdown_name;
-	struct clk				*clk;
-	bool					clk_enabled;
+	const char		*name;
+	enum rfkill_type	type;
+	int			reset_gpio;
+	int			shutdown_gpio;
+
+	struct rfkill		*rfkill_dev;
+	char			*reset_name;
+	char			*shutdown_name;
+	struct clk		*clk;
+
+	bool			clk_enabled;
 };
 
 static int rfkill_gpio_set_power(void *data, bool blocked)
@@ -41,19 +46,19 @@ static int rfkill_gpio_set_power(void *data, bool blocked)
 	struct rfkill_gpio_data *rfkill = data;
 
 	if (blocked) {
-		if (gpio_is_valid(rfkill->pdata->shutdown_gpio))
-			gpio_set_value(rfkill->pdata->shutdown_gpio, 0);
-		if (gpio_is_valid(rfkill->pdata->reset_gpio))
-			gpio_set_value(rfkill->pdata->reset_gpio, 0);
+		if (gpio_is_valid(rfkill->shutdown_gpio))
+			gpio_set_value(rfkill->shutdown_gpio, 0);
+		if (gpio_is_valid(rfkill->reset_gpio))
+			gpio_set_value(rfkill->reset_gpio, 0);
 		if (!IS_ERR(rfkill->clk) && rfkill->clk_enabled)
 			clk_disable(rfkill->clk);
 	} else {
 		if (!IS_ERR(rfkill->clk) && !rfkill->clk_enabled)
 			clk_enable(rfkill->clk);
-		if (gpio_is_valid(rfkill->pdata->reset_gpio))
-			gpio_set_value(rfkill->pdata->reset_gpio, 1);
-		if (gpio_is_valid(rfkill->pdata->shutdown_gpio))
-			gpio_set_value(rfkill->pdata->shutdown_gpio, 1);
+		if (gpio_is_valid(rfkill->reset_gpio))
+			gpio_set_value(rfkill->reset_gpio, 1);
+		if (gpio_is_valid(rfkill->shutdown_gpio))
+			gpio_set_value(rfkill->shutdown_gpio, 1);
 	}
 
 	rfkill->clk_enabled = blocked;
@@ -67,29 +72,35 @@ static const struct rfkill_ops rfkill_gpio_ops = {
 
 static int rfkill_gpio_probe(struct platform_device *pdev)
 {
-	struct rfkill_gpio_data *rfkill;
 	struct rfkill_gpio_platform_data *pdata = pdev->dev.platform_data;
+	struct rfkill_gpio_data *rfkill;
+	const char *clk_name = NULL;
 	int ret = 0;
 	int len = 0;
 
-	if (!pdata) {
-		pr_warn("%s: No platform data specified\n", __func__);
-		return -EINVAL;
+	rfkill = devm_kzalloc(&pdev->dev, sizeof(*rfkill), GFP_KERNEL);
+	if (!rfkill)
+		return -ENOMEM;
+
+	if (pdata) {
+		clk_name = pdata->power_clk_name;
+		rfkill->name = pdata->name;
+		rfkill->type = pdata->type;
+		rfkill->reset_gpio = pdata->reset_gpio;
+		rfkill->shutdown_gpio = pdata->shutdown_gpio;
+	} else {
+		return -ENODEV;
 	}
 
 	/* make sure at-least one of the GPIO is defined and that
 	 * a name is specified for this instance */
-	if (!pdata->name || (!gpio_is_valid(pdata->reset_gpio) &&
-		!gpio_is_valid(pdata->shutdown_gpio))) {
+	if ((!gpio_is_valid(rfkill->reset_gpio) &&
+	     !gpio_is_valid(rfkill->shutdown_gpio)) || !rfkill->name) {
 		pr_warn("%s: invalid platform data\n", __func__);
 		return -EINVAL;
 	}
 
-	rfkill = devm_kzalloc(&pdev->dev, sizeof(*rfkill), GFP_KERNEL);
-	if (!rfkill)
-		return -ENOMEM;
-
-	if (pdata->gpio_runtime_setup) {
+	if (pdata && pdata->gpio_runtime_setup) {
 		ret = pdata->gpio_runtime_setup(pdev);
 		if (ret) {
 			pr_warn("%s: can't set up gpio\n", __func__);
@@ -97,9 +108,7 @@ static int rfkill_gpio_probe(struct platform_device *pdev)
 		}
 	}
 
-	rfkill->pdata = pdata;
-
-	len = strlen(pdata->name);
+	len = strlen(rfkill->name);
 	rfkill->reset_name = devm_kzalloc(&pdev->dev, len + 7, GFP_KERNEL);
 	if (!rfkill->reset_name)
 		return -ENOMEM;
@@ -108,13 +117,13 @@ static int rfkill_gpio_probe(struct platform_device *pdev)
 	if (!rfkill->shutdown_name)
 		return -ENOMEM;
 
-	snprintf(rfkill->reset_name, len + 6 , "%s_reset", pdata->name);
-	snprintf(rfkill->shutdown_name, len + 9, "%s_shutdown", pdata->name);
+	snprintf(rfkill->reset_name, len + 6 , "%s_reset", rfkill->name);
+	snprintf(rfkill->shutdown_name, len + 9, "%s_shutdown", rfkill->name);
 
-	rfkill->clk = devm_clk_get(&pdev->dev, pdata->power_clk_name);
+	rfkill->clk = devm_clk_get(&pdev->dev, clk_name);
 
-	if (gpio_is_valid(pdata->reset_gpio)) {
-		ret = devm_gpio_request_one(&pdev->dev, pdata->reset_gpio,
+	if (gpio_is_valid(rfkill->reset_gpio)) {
+		ret = devm_gpio_request_one(&pdev->dev, rfkill->reset_gpio,
 					    0, rfkill->reset_name);
 		if (ret) {
 			pr_warn("%s: failed to get reset gpio.\n", __func__);
@@ -122,8 +131,8 @@ static int rfkill_gpio_probe(struct platform_device *pdev)
 		}
 	}
 
-	if (gpio_is_valid(pdata->shutdown_gpio)) {
-		ret = devm_gpio_request_one(&pdev->dev, pdata->shutdown_gpio,
+	if (gpio_is_valid(rfkill->shutdown_gpio)) {
+		ret = devm_gpio_request_one(&pdev->dev, rfkill->shutdown_gpio,
 					    0, rfkill->shutdown_name);
 		if (ret) {
 			pr_warn("%s: failed to get shutdown gpio.\n", __func__);
@@ -131,8 +140,9 @@ static int rfkill_gpio_probe(struct platform_device *pdev)
 		}
 	}
 
-	rfkill->rfkill_dev = rfkill_alloc(pdata->name, &pdev->dev, pdata->type,
-					  &rfkill_gpio_ops, rfkill);
+	rfkill->rfkill_dev = rfkill_alloc(rfkill->name, &pdev->dev,
+					  rfkill->type, &rfkill_gpio_ops,
+					  rfkill);
 	if (!rfkill->rfkill_dev)
 		return -ENOMEM;
 
@@ -142,7 +152,7 @@ static int rfkill_gpio_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, rfkill);
 
-	dev_info(&pdev->dev, "%s device registered.\n", pdata->name);
+	dev_info(&pdev->dev, "%s device registered.\n", rfkill->name);
 
 	return 0;
 }
@@ -152,7 +162,7 @@ static int rfkill_gpio_remove(struct platform_device *pdev)
 	struct rfkill_gpio_data *rfkill = platform_get_drvdata(pdev);
 	struct rfkill_gpio_platform_data *pdata = pdev->dev.platform_data;
 
-	if (pdata->gpio_runtime_close)
+	if (pdata && pdata->gpio_runtime_close)
 		pdata->gpio_runtime_close(pdev);
 	rfkill_unregister(rfkill->rfkill_dev);
 	rfkill_destroy(rfkill->rfkill_dev);
@@ -164,8 +174,8 @@ static struct platform_driver rfkill_gpio_driver = {
 	.probe = rfkill_gpio_probe,
 	.remove = rfkill_gpio_remove,
 	.driver = {
-		   .name = "rfkill_gpio",
-		   .owner = THIS_MODULE,
+		.name = "rfkill_gpio",
+		.owner = THIS_MODULE,
 	},
 };
 
-- 
cgit 


From ef91ffaa033001c2ba65d3c9659f1a75886d0aa3 Mon Sep 17 00:00:00 2001
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Wed, 16 Oct 2013 13:53:43 +0300
Subject: net: rfkill: gpio: add ACPI support

Including ACPI ID for Broadcom GPS receiver BCM4752.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Rhyland Klein <rklein@nvidia.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/rfkill/rfkill-gpio.c | 31 ++++++++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

diff --git a/net/rfkill/rfkill-gpio.c b/net/rfkill/rfkill-gpio.c
index 2dd78c628d86..5620d3c07479 100644
--- a/net/rfkill/rfkill-gpio.c
+++ b/net/rfkill/rfkill-gpio.c
@@ -24,6 +24,8 @@
 #include <linux/platform_device.h>
 #include <linux/clk.h>
 #include <linux/slab.h>
+#include <linux/acpi.h>
+#include <linux/acpi_gpio.h>
 
 #include <linux/rfkill-gpio.h>
 
@@ -70,6 +72,23 @@ static const struct rfkill_ops rfkill_gpio_ops = {
 	.set_block = rfkill_gpio_set_power,
 };
 
+static int rfkill_gpio_acpi_probe(struct device *dev,
+				  struct rfkill_gpio_data *rfkill)
+{
+	const struct acpi_device_id *id;
+
+	id = acpi_match_device(dev->driver->acpi_match_table, dev);
+	if (!id)
+		return -ENODEV;
+
+	rfkill->name = dev_name(dev);
+	rfkill->type = (unsigned)id->driver_data;
+	rfkill->reset_gpio = acpi_get_gpio_by_index(dev, 0, NULL);
+	rfkill->shutdown_gpio = acpi_get_gpio_by_index(dev, 1, NULL);
+
+	return 0;
+}
+
 static int rfkill_gpio_probe(struct platform_device *pdev)
 {
 	struct rfkill_gpio_platform_data *pdata = pdev->dev.platform_data;
@@ -82,7 +101,11 @@ static int rfkill_gpio_probe(struct platform_device *pdev)
 	if (!rfkill)
 		return -ENOMEM;
 
-	if (pdata) {
+	if (ACPI_HANDLE(&pdev->dev)) {
+		ret = rfkill_gpio_acpi_probe(&pdev->dev, rfkill);
+		if (ret)
+			return ret;
+	} else if (pdata) {
 		clk_name = pdata->power_clk_name;
 		rfkill->name = pdata->name;
 		rfkill->type = pdata->type;
@@ -170,12 +193,18 @@ static int rfkill_gpio_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct acpi_device_id rfkill_acpi_match[] = {
+	{ "BCM4752", RFKILL_TYPE_GPS },
+	{ },
+};
+
 static struct platform_driver rfkill_gpio_driver = {
 	.probe = rfkill_gpio_probe,
 	.remove = rfkill_gpio_remove,
 	.driver = {
 		.name = "rfkill_gpio",
 		.owner = THIS_MODULE,
+		.acpi_match_table = ACPI_PTR(rfkill_acpi_match),
 	},
 };
 
-- 
cgit 


From 17ac49594fc574665e937f5804134087c0f37115 Mon Sep 17 00:00:00 2001
From: Seth Forshee <seth.forshee@canonical.com>
Date: Tue, 15 Oct 2013 16:16:21 -0500
Subject: mac80211: Remove check for offchannel state when waking netdev queues

6c17b77b67587b9f9e3070fb89fe98cef3187131 ensures that a device's
mac80211 queues will remain stopped while offchannel. Since the
vif can no longer be offchannel when the queues wake it's not
necessary to check for this before waking its netdev queues.

Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/util.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index b763e4ccaf5e..65ebe0c5e835 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -300,9 +300,6 @@ void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue)
 		if (!sdata->dev)
 			continue;
 
-		if (test_bit(SDATA_STATE_OFFCHANNEL, &sdata->state))
-			continue;
-
 		if (sdata->vif.cab_queue != IEEE80211_INVAL_HW_QUEUE &&
 		    local->queue_stop_reasons[sdata->vif.cab_queue] != 0)
 			continue;
-- 
cgit 


From 446075d76b6cc48ed15c515e836dd1a1f25f4c3d Mon Sep 17 00:00:00 2001
From: Marco Porsch <marco@cozybit.com>
Date: Tue, 15 Oct 2013 12:29:24 +0200
Subject: mac80211: fixes for mesh powersave logic

This patch fixes errors in the mesh powersave logic which
cause that remote peers do not get peer power mode change
notifications and mesh peer service periods (MPSPs) got
stuck.

When closing a peer link, set the (now invalid) peer-specific
power mode to 'unknown'.

Avoid overhead when local power mode is unchanged.

Reliably clear MPSP flags on peering status update.

Avoid MPSP flags getting stuck by not requesting a further
MPSP ownership if we already are an MPSP owner.

Signed-off-by: Marco Porsch <marco@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/cfg.c        |  4 ++--
 net/mac80211/mesh_plink.c |  3 ++-
 net/mac80211/mesh_ps.c    | 33 ++++++++++++++++++---------------
 3 files changed, 22 insertions(+), 18 deletions(-)

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 4a3d5a414a25..67f62dac54f5 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1343,8 +1343,8 @@ static int sta_apply_parameters(struct ieee80211_local *local,
 				sta->plink_state = params->plink_state;
 
 				ieee80211_mps_sta_status_update(sta);
-				changed |=
-				      ieee80211_mps_local_status_update(sdata);
+				changed |= ieee80211_mps_set_sta_local_pm(sta,
+						NL80211_MESH_POWER_UNKNOWN);
 				break;
 			default:
 				/*  nothing  */
diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c
index 6b65d5055f5b..4301aa5aa227 100644
--- a/net/mac80211/mesh_plink.c
+++ b/net/mac80211/mesh_plink.c
@@ -222,7 +222,8 @@ static u32 __mesh_plink_deactivate(struct sta_info *sta)
 	mesh_path_flush_by_nexthop(sta);
 
 	ieee80211_mps_sta_status_update(sta);
-	changed |= ieee80211_mps_local_status_update(sdata);
+	changed |= ieee80211_mps_set_sta_local_pm(sta,
+			NL80211_MESH_POWER_UNKNOWN);
 
 	return changed;
 }
diff --git a/net/mac80211/mesh_ps.c b/net/mac80211/mesh_ps.c
index 22290a929b94..0f79b78b5e86 100644
--- a/net/mac80211/mesh_ps.c
+++ b/net/mac80211/mesh_ps.c
@@ -152,6 +152,9 @@ u32 ieee80211_mps_set_sta_local_pm(struct sta_info *sta,
 {
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
 
+	if (sta->local_pm == pm)
+		return 0;
+
 	mps_dbg(sdata, "local STA operates in mode %d with %pM\n",
 		pm, sta->sta.addr);
 
@@ -245,6 +248,14 @@ void ieee80211_mps_sta_status_update(struct sta_info *sta)
 
 	do_buffer = (pm != NL80211_MESH_POWER_ACTIVE);
 
+	/* clear the MPSP flags for non-peers or active STA */
+	if (sta->plink_state != NL80211_PLINK_ESTAB) {
+		clear_sta_flag(sta, WLAN_STA_MPSP_OWNER);
+		clear_sta_flag(sta, WLAN_STA_MPSP_RECIPIENT);
+	} else if (!do_buffer) {
+		clear_sta_flag(sta, WLAN_STA_MPSP_OWNER);
+	}
+
 	/* Don't let the same PS state be set twice */
 	if (test_sta_flag(sta, WLAN_STA_PS_STA) == do_buffer)
 		return;
@@ -257,14 +268,6 @@ void ieee80211_mps_sta_status_update(struct sta_info *sta)
 	} else {
 		ieee80211_sta_ps_deliver_wakeup(sta);
 	}
-
-	/* clear the MPSP flags for non-peers or active STA */
-	if (sta->plink_state != NL80211_PLINK_ESTAB) {
-		clear_sta_flag(sta, WLAN_STA_MPSP_OWNER);
-		clear_sta_flag(sta, WLAN_STA_MPSP_RECIPIENT);
-	} else if (!do_buffer) {
-		clear_sta_flag(sta, WLAN_STA_MPSP_OWNER);
-	}
 }
 
 static void mps_set_sta_peer_pm(struct sta_info *sta,
@@ -444,8 +447,7 @@ static void mpsp_qos_null_append(struct sta_info *sta,
  */
 static void mps_frame_deliver(struct sta_info *sta, int n_frames)
 {
-	struct ieee80211_sub_if_data *sdata = sta->sdata;
-	struct ieee80211_local *local = sdata->local;
+	struct ieee80211_local *local = sta->sdata->local;
 	int ac;
 	struct sk_buff_head frames;
 	struct sk_buff *skb;
@@ -558,10 +560,10 @@ void ieee80211_mpsp_trigger_process(u8 *qc, struct sta_info *sta,
 }
 
 /**
- * ieee80211_mps_frame_release - release buffered frames in response to beacon
+ * ieee80211_mps_frame_release - release frames buffered due to mesh power save
  *
  * @sta: mesh STA
- * @elems: beacon IEs
+ * @elems: IEs of beacon or probe response
  *
  * For peers if we have individually-addressed frames buffered or the peer
  * indicates buffered frames, send a corresponding MPSP trigger frame. Since
@@ -588,9 +590,10 @@ void ieee80211_mps_frame_release(struct sta_info *sta,
 	    (!elems->awake_window || !le16_to_cpu(*elems->awake_window)))
 		return;
 
-	for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
-		buffer_local += skb_queue_len(&sta->ps_tx_buf[ac]) +
-				skb_queue_len(&sta->tx_filtered[ac]);
+	if (!test_sta_flag(sta, WLAN_STA_MPSP_OWNER))
+		for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
+			buffer_local += skb_queue_len(&sta->ps_tx_buf[ac]) +
+					skb_queue_len(&sta->tx_filtered[ac]);
 
 	if (!has_buffered && !buffer_local)
 		return;
-- 
cgit 


From 034c6d6e675f84ef5e67445150522b2517d963c9 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
Date: Mon, 14 Oct 2013 17:42:06 -0700
Subject: cfg80211: export reg_initiator_name()

Drivers can now use this to parse the regulatory request and
be more verbose when needed.

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 include/net/cfg80211.h |  9 +++++++++
 net/wireless/reg.c     | 26 ++++++++++++++++----------
 2 files changed, 25 insertions(+), 10 deletions(-)

diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index b1acf36e5f45..3eae46cb1acf 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -3497,6 +3497,15 @@ void wiphy_apply_custom_regulatory(struct wiphy *wiphy,
 const struct ieee80211_reg_rule *freq_reg_info(struct wiphy *wiphy,
 					       u32 center_freq);
 
+/**
+ * reg_initiator_name - map regulatory request initiator enum to name
+ * @initiator: the regulatory request initiator
+ *
+ * You can use this to map the regulatory request initiator enum to a
+ * proper string representation.
+ */
+const char *reg_initiator_name(enum nl80211_reg_initiator initiator);
+
 /*
  * callbacks for asynchronous cfg80211 methods, notification
  * functions and BSS handling helpers
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index edb2ba4e2a18..7da67fd0b418 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -768,24 +768,25 @@ const struct ieee80211_reg_rule *freq_reg_info(struct wiphy *wiphy,
 }
 EXPORT_SYMBOL(freq_reg_info);
 
-#ifdef CONFIG_CFG80211_REG_DEBUG
-static const char *reg_initiator_name(enum nl80211_reg_initiator initiator)
+const char *reg_initiator_name(enum nl80211_reg_initiator initiator)
 {
 	switch (initiator) {
 	case NL80211_REGDOM_SET_BY_CORE:
-		return "Set by core";
+		return "core";
 	case NL80211_REGDOM_SET_BY_USER:
-		return "Set by user";
+		return "user";
 	case NL80211_REGDOM_SET_BY_DRIVER:
-		return "Set by driver";
+		return "driver";
 	case NL80211_REGDOM_SET_BY_COUNTRY_IE:
-		return "Set by country IE";
+		return "country IE";
 	default:
 		WARN_ON(1);
-		return "Set by bug";
+		return "bug";
 	}
 }
+EXPORT_SYMBOL(reg_initiator_name);
 
+#ifdef CONFIG_CFG80211_REG_DEBUG
 static void chan_reg_rule_print_dbg(struct ieee80211_channel *chan,
 				    const struct ieee80211_reg_rule *reg_rule)
 {
@@ -986,14 +987,17 @@ static bool ignore_reg_update(struct wiphy *wiphy,
 	struct regulatory_request *lr = get_last_request();
 
 	if (!lr) {
-		REG_DBG_PRINT("Ignoring regulatory request %s since last_request is not set\n",
+		REG_DBG_PRINT("Ignoring regulatory request set by %s "
+			      "since last_request is not set\n",
 			      reg_initiator_name(initiator));
 		return true;
 	}
 
 	if (initiator == NL80211_REGDOM_SET_BY_CORE &&
 	    wiphy->flags & WIPHY_FLAG_CUSTOM_REGULATORY) {
-		REG_DBG_PRINT("Ignoring regulatory request %s since the driver uses its own custom regulatory domain\n",
+		REG_DBG_PRINT("Ignoring regulatory request set by %s "
+			      "since the driver uses its own custom "
+			      "regulatory domain\n",
 			      reg_initiator_name(initiator));
 		return true;
 	}
@@ -1005,7 +1009,9 @@ static bool ignore_reg_update(struct wiphy *wiphy,
 	if (wiphy_strict_alpha2_regd(wiphy) && !wiphy->regd &&
 	    initiator != NL80211_REGDOM_SET_BY_COUNTRY_IE &&
 	    !is_world_regdom(lr->alpha2)) {
-		REG_DBG_PRINT("Ignoring regulatory request %s since the driver requires its own regulatory domain to be set first\n",
+		REG_DBG_PRINT("Ignoring regulatory request set by %s "
+			      "since the driver requires its own regulatory "
+			      "domain to be set first\n",
 			      reg_initiator_name(initiator));
 		return true;
 	}
-- 
cgit 


From 06be6b149f7e406bcf16098567f5a6c9f042bced Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Mon, 14 Oct 2013 18:01:00 +0200
Subject: mac80211: add ieee80211_tx_prepare_skb() helper function

This can be used by a driver to prepare skbs for transmission, which were
obtained via functions such as ieee80211_probereq_get or
ieee80211_nullfunc_get.

This is useful for drivers that want to send those frames directly, but
need rate control information to be prepared first.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 include/net/mac80211.h | 14 ++++++++++++++
 net/mac80211/tx.c      | 29 +++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+)

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index ecba8a10acf4..7ceed99a05bc 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -4571,4 +4571,18 @@ void ieee80211_report_wowlan_wakeup(struct ieee80211_vif *vif,
 				    struct cfg80211_wowlan_wakeup *wakeup,
 				    gfp_t gfp);
 
+/**
+ * ieee80211_tx_prepare_skb - prepare an 802.11 skb for transmission
+ * @hw: pointer as obtained from ieee80211_alloc_hw()
+ * @vif: virtual interface
+ * @skb: frame to be sent from within the driver
+ * @band: the band to transmit on
+ * @sta: optional pointer to get the station to send the frame to
+ *
+ * Note: must be called under RCU lock
+ */
+bool ieee80211_tx_prepare_skb(struct ieee80211_hw *hw,
+			      struct ieee80211_vif *vif, struct sk_buff *skb,
+			      int band, struct ieee80211_sta **sta);
+
 #endif /* MAC80211_H */
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 4fcbf634b548..acd9b61fbc07 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1366,6 +1366,35 @@ static int invoke_tx_handlers(struct ieee80211_tx_data *tx)
 	return 0;
 }
 
+bool ieee80211_tx_prepare_skb(struct ieee80211_hw *hw,
+			      struct ieee80211_vif *vif, struct sk_buff *skb,
+			      int band, struct ieee80211_sta **sta)
+{
+	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+	struct ieee80211_tx_data tx;
+
+	if (ieee80211_tx_prepare(sdata, &tx, skb) == TX_DROP)
+		return false;
+
+	info->band = band;
+	info->control.vif = vif;
+	info->hw_queue = vif->hw_queue[skb_get_queue_mapping(skb)];
+
+	if (invoke_tx_handlers(&tx))
+		return false;
+
+	if (sta) {
+		if (tx.sta)
+			*sta = &tx.sta->sta;
+		else
+			*sta = NULL;
+	}
+
+	return true;
+}
+EXPORT_SYMBOL(ieee80211_tx_prepare_skb);
+
 /*
  * Returns false if the frame couldn't be transmitted but was queued instead.
  */
-- 
cgit 


From c0f17eb9b2d4d322c099a0700437209149224583 Mon Sep 17 00:00:00 2001
From: Chun-Yeow Yeoh <yeohchunyeow@cozybit.com>
Date: Mon, 14 Oct 2013 19:08:29 -0700
Subject: mac80211: refactor the parsing of chan switch ie

Refactor the channel switch IE parsing to reduce the number
of function parameters.

Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/ibss.c        | 13 +++++++------
 net/mac80211/ieee80211_i.h | 17 ++++++++++++-----
 net/mac80211/mlme.c        | 32 +++++++++++++++-----------------
 net/mac80211/spectmgmt.c   | 27 ++++++++++++++-------------
 4 files changed, 48 insertions(+), 41 deletions(-)

diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index 275bbb2c1a5a..a0ae02760139 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -836,13 +836,13 @@ ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 				  bool beacon)
 {
 	struct cfg80211_csa_settings params;
+	struct ieee80211_csa_ie csa_ie;
 	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
 	struct ieee80211_chanctx_conf *chanctx_conf;
 	struct ieee80211_chanctx *chanctx;
 	enum nl80211_channel_type ch_type;
 	int err, num_chanctx;
 	u32 sta_flags;
-	u8 mode;
 
 	if (sdata->vif.csa_active)
 		return true;
@@ -865,12 +865,10 @@ ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 	}
 
 	memset(&params, 0, sizeof(params));
+	memset(&csa_ie, 0, sizeof(csa_ie));
 	err = ieee80211_parse_ch_switch_ie(sdata, elems, beacon,
 					   ifibss->chandef.chan->band,
-					   sta_flags, ifibss->bssid,
-					   &params.count, &mode,
-					   &params.chandef);
-
+					   sta_flags, ifibss->bssid, &csa_ie);
 	/* can't switch to destination channel, fail */
 	if (err < 0)
 		goto disconnect;
@@ -879,6 +877,9 @@ ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 	if (err)
 		return false;
 
+	params.count = csa_ie.count;
+	params.chandef = csa_ie.chandef;
+
 	if (ifibss->chandef.chan->band != params.chandef.chan->band)
 		goto disconnect;
 
@@ -965,7 +966,7 @@ ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 		 "received channel switch announcement to go to channel %d MHz\n",
 		 params.chandef.chan->center_freq);
 
-	params.block_tx = !!mode;
+	params.block_tx = !!csa_ie.mode;
 
 	ieee80211_ibss_csa_beacon(sdata, &params);
 	sdata->csa_radar_required = params.radar_required;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index ff3c310142b5..cbaea32bccf1 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1208,6 +1208,14 @@ struct ieee80211_ra_tid {
 	u16 tid;
 };
 
+/* this struct holds the value parsing from channel switch IE  */
+struct ieee80211_csa_ie {
+	struct cfg80211_chan_def chandef;
+	u8 mode;
+	u8 count;
+	u8 ttl;
+};
+
 /* Parsed Information Elements */
 struct ieee802_11_elems {
 	const u8 *ie_start;
@@ -1505,17 +1513,16 @@ void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
  *	%IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
  *	%IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
  *	%IEEE80211_STA_DISABLE_160MHZ.
- * @count: to be filled with the counter until the switch (on success only)
  * @bssid: the currently connected bssid (for reporting)
- * @mode: to be filled with CSA mode (on success only)
- * @new_chandef: to be filled with destination chandef (on success only)
+ * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
+	All of them will be filled with if success only.
  * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
  */
 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
 				 struct ieee802_11_elems *elems, bool beacon,
 				 enum ieee80211_band current_band,
-				 u32 sta_flags, u8 *bssid, u8 *count, u8 *mode,
-				 struct cfg80211_chan_def *new_chandef);
+				 u32 sta_flags, u8 *bssid,
+				 struct ieee80211_csa_ie *csa_ie);
 
 /* Suspend/resume and hw reconfiguration */
 int ieee80211_reconfig(struct ieee80211_local *local);
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 5cc1c274dd61..1305ff984d49 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -958,9 +958,7 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 	struct cfg80211_bss *cbss = ifmgd->associated;
 	struct ieee80211_chanctx *chanctx;
 	enum ieee80211_band current_band;
-	u8 count;
-	u8 mode;
-	struct cfg80211_chan_def new_chandef = {};
+	struct ieee80211_csa_ie csa_ie;
 	int res;
 
 	sdata_assert_lock(sdata);
@@ -976,24 +974,24 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 		return;
 
 	current_band = cbss->channel->band;
+	memset(&csa_ie, 0, sizeof(csa_ie));
 	res = ieee80211_parse_ch_switch_ie(sdata, elems, beacon, current_band,
 					   ifmgd->flags,
-					   ifmgd->associated->bssid, &count,
-					   &mode, &new_chandef);
+					   ifmgd->associated->bssid, &csa_ie);
 	if (res	< 0)
 		ieee80211_queue_work(&local->hw,
 				     &ifmgd->csa_connection_drop_work);
 	if (res)
 		return;
 
-	if (!cfg80211_chandef_usable(local->hw.wiphy, &new_chandef,
+	if (!cfg80211_chandef_usable(local->hw.wiphy, &csa_ie.chandef,
 				     IEEE80211_CHAN_DISABLED)) {
 		sdata_info(sdata,
 			   "AP %pM switches to unsupported channel (%d MHz, width:%d, CF1/2: %d/%d MHz), disconnecting\n",
 			   ifmgd->associated->bssid,
-			   new_chandef.chan->center_freq,
-			   new_chandef.width, new_chandef.center_freq1,
-			   new_chandef.center_freq2);
+			   csa_ie.chandef.chan->center_freq,
+			   csa_ie.chandef.width, csa_ie.chandef.center_freq1,
+			   csa_ie.chandef.center_freq2);
 		ieee80211_queue_work(&local->hw,
 				     &ifmgd->csa_connection_drop_work);
 		return;
@@ -1037,9 +1035,9 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 	}
 	mutex_unlock(&local->chanctx_mtx);
 
-	local->csa_chandef = new_chandef;
+	local->csa_chandef = csa_ie.chandef;
 
-	if (mode)
+	if (csa_ie.mode)
 		ieee80211_stop_queues_by_reason(&local->hw,
 				IEEE80211_MAX_QUEUE_MAP,
 				IEEE80211_QUEUE_STOP_REASON_CSA);
@@ -1048,9 +1046,9 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 		/* use driver's channel switch callback */
 		struct ieee80211_channel_switch ch_switch = {
 			.timestamp = timestamp,
-			.block_tx = mode,
-			.chandef = new_chandef,
-			.count = count,
+			.block_tx = csa_ie.mode,
+			.chandef = csa_ie.chandef,
+			.count = csa_ie.count,
 		};
 
 		drv_channel_switch(local, &ch_switch);
@@ -1058,11 +1056,11 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
 	}
 
 	/* channel switch handled in software */
-	if (count <= 1)
+	if (csa_ie.count <= 1)
 		ieee80211_queue_work(&local->hw, &ifmgd->chswitch_work);
 	else
 		mod_timer(&ifmgd->chswitch_timer,
-			  TU_TO_EXP_TIME(count * cbss->beacon_interval));
+			  TU_TO_EXP_TIME(csa_ie.count * cbss->beacon_interval));
 }
 
 static u32 ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
@@ -3994,7 +3992,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
 	}
 
 	/* prepare assoc data */
-	
+
 	ifmgd->beacon_crc_valid = false;
 
 	/*
diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c
index 921597e279a3..a298e129633b 100644
--- a/net/mac80211/spectmgmt.c
+++ b/net/mac80211/spectmgmt.c
@@ -24,8 +24,8 @@
 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
 				 struct ieee802_11_elems *elems, bool beacon,
 				 enum ieee80211_band current_band,
-				 u32 sta_flags, u8 *bssid, u8 *count, u8 *mode,
-				 struct cfg80211_chan_def *new_chandef)
+				 u32 sta_flags, u8 *bssid,
+				 struct ieee80211_csa_ie *csa_ie)
 {
 	enum ieee80211_band new_band;
 	int new_freq;
@@ -62,13 +62,13 @@ int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
 			return -EINVAL;
 		}
 		new_chan_no = elems->ext_chansw_ie->new_ch_num;
-		*count = elems->ext_chansw_ie->count;
-		*mode = elems->ext_chansw_ie->mode;
+		csa_ie->count = elems->ext_chansw_ie->count;
+		csa_ie->mode = elems->ext_chansw_ie->mode;
 	} else if (elems->ch_switch_ie) {
 		new_band = current_band;
 		new_chan_no = elems->ch_switch_ie->new_ch_num;
-		*count = elems->ch_switch_ie->count;
-		*mode = elems->ch_switch_ie->mode;
+		csa_ie->count = elems->ch_switch_ie->count;
+		csa_ie->mode = elems->ch_switch_ie->mode;
 	} else {
 		/* nothing here we understand */
 		return 1;
@@ -103,25 +103,26 @@ int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
 	default:
 		/* secondary_channel_offset was present but is invalid */
 	case IEEE80211_HT_PARAM_CHA_SEC_NONE:
-		cfg80211_chandef_create(new_chandef, new_chan,
+		cfg80211_chandef_create(&csa_ie->chandef, new_chan,
 					NL80211_CHAN_HT20);
 		break;
 	case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
-		cfg80211_chandef_create(new_chandef, new_chan,
+		cfg80211_chandef_create(&csa_ie->chandef, new_chan,
 					NL80211_CHAN_HT40PLUS);
 		break;
 	case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
-		cfg80211_chandef_create(new_chandef, new_chan,
+		cfg80211_chandef_create(&csa_ie->chandef, new_chan,
 					NL80211_CHAN_HT40MINUS);
 		break;
 	case -1:
-		cfg80211_chandef_create(new_chandef, new_chan,
+		cfg80211_chandef_create(&csa_ie->chandef, new_chan,
 					NL80211_CHAN_NO_HT);
 		/* keep width for 5/10 MHz channels */
 		switch (sdata->vif.bss_conf.chandef.width) {
 		case NL80211_CHAN_WIDTH_5:
 		case NL80211_CHAN_WIDTH_10:
-			new_chandef->width = sdata->vif.bss_conf.chandef.width;
+			csa_ie->chandef.width =
+				sdata->vif.bss_conf.chandef.width;
 			break;
 		default:
 			break;
@@ -171,13 +172,13 @@ int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
 	/* if VHT data is there validate & use it */
 	if (new_vht_chandef.chan) {
 		if (!cfg80211_chandef_compatible(&new_vht_chandef,
-						 new_chandef)) {
+						 &csa_ie->chandef)) {
 			sdata_info(sdata,
 				   "BSS %pM: CSA has inconsistent channel data, disconnecting\n",
 				   bssid);
 			return -EINVAL;
 		}
-		*new_chandef = new_vht_chandef;
+		csa_ie->chandef = new_vht_chandef;
 	}
 
 	return 0;
-- 
cgit 


From 8f2535b92d685c68db4bc699dd78462a646f6ef9 Mon Sep 17 00:00:00 2001
From: Chun-Yeow Yeoh <yeohchunyeow@cozybit.com>
Date: Mon, 14 Oct 2013 19:08:27 -0700
Subject: mac80211: process the CSA frame for mesh accordingly

Process the CSA frame according to the procedures define in IEEE Std
802.11-2012 section 10.9.8.4.3 as follow:
* The mesh channel switch parameters element (MCSP) must be availabe.
* If the MCSP's TTL is 1, drop the frame but still process the CSA.
* If the MCSP's precedence value is less than or equal to the current
  precedence value, drop the frame and do not process the CSA.
* The CSA frame is forwarded after TTL is decremented by 1 and the
  initiator field is set to 0. Transmit restrict field and others
  are maintained as is.
* No beacon or probe response frame are handled here.

Also, introduce the debug message used for mesh CSA purpose.

Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 include/linux/ieee80211.h  | 20 +++++++++++
 net/mac80211/Kconfig       | 11 ++++++
 net/mac80211/debug.h       | 10 ++++++
 net/mac80211/ieee80211_i.h |  4 +++
 net/mac80211/mesh.c        | 83 ++++++++++++++++++++++++++++++++++++++++++++--
 net/mac80211/util.c        |  9 +++++
 6 files changed, 134 insertions(+), 3 deletions(-)

diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 7c1e1ebc0e23..8c3b26a21574 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -696,6 +696,18 @@ struct ieee80211_sec_chan_offs_ie {
 	u8 sec_chan_offs;
 } __packed;
 
+/**
+ * struct ieee80211_mesh_chansw_params_ie - mesh channel switch parameters IE
+ *
+ * This structure represents the "Mesh Channel Switch Paramters element"
+ */
+struct ieee80211_mesh_chansw_params_ie {
+	u8 mesh_ttl;
+	u8 mesh_flags;
+	__le16 mesh_reason;
+	__le16 mesh_pre_value;
+} __packed;
+
 /**
  * struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
  */
@@ -750,6 +762,14 @@ enum mesh_config_capab_flags {
 	IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL	= 0x40,
 };
 
+/**
+ * mesh channel switch parameters element's flag indicator
+ *
+ */
+#define WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT BIT(0)
+#define WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR BIT(1)
+#define WLAN_EID_CHAN_SWITCH_PARAM_REASON BIT(2)
+
 /**
  * struct ieee80211_rann_ie
  *
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig
index dc31ec3db404..97b5dcad5025 100644
--- a/net/mac80211/Kconfig
+++ b/net/mac80211/Kconfig
@@ -259,6 +259,17 @@ config MAC80211_MESH_SYNC_DEBUG
 
 	  Do not select this option.
 
+config MAC80211_MESH_CSA_DEBUG
+	bool "Verbose mesh channel switch debugging"
+	depends on MAC80211_DEBUG_MENU
+	depends on MAC80211_MESH
+	---help---
+	  Selecting this option causes mac80211 to print out very verbose mesh
+	  channel switch debugging messages (when mac80211 is taking part in a
+	  mesh network).
+
+	  Do not select this option.
+
 config MAC80211_MESH_PS_DEBUG
 	bool "Verbose mesh powersave debugging"
 	depends on MAC80211_DEBUG_MENU
diff --git a/net/mac80211/debug.h b/net/mac80211/debug.h
index 4ccc5ed6237d..493d68061f0c 100644
--- a/net/mac80211/debug.h
+++ b/net/mac80211/debug.h
@@ -44,6 +44,12 @@
 #define MAC80211_MESH_SYNC_DEBUG 0
 #endif
 
+#ifdef CONFIG_MAC80211_MESH_CSA_DEBUG
+#define MAC80211_MESH_CSA_DEBUG 1
+#else
+#define MAC80211_MESH_CSA_DEBUG 0
+#endif
+
 #ifdef CONFIG_MAC80211_MESH_PS_DEBUG
 #define MAC80211_MESH_PS_DEBUG 1
 #else
@@ -157,6 +163,10 @@ do {									\
 	_sdata_dbg(MAC80211_MESH_SYNC_DEBUG,				\
 		   sdata, fmt, ##__VA_ARGS__)
 
+#define mcsa_dbg(sdata, fmt, ...)					\
+	_sdata_dbg(MAC80211_MESH_CSA_DEBUG,				\
+		   sdata, fmt, ##__VA_ARGS__)
+
 #define mps_dbg(sdata, fmt, ...)					\
 	_sdata_dbg(MAC80211_MESH_PS_DEBUG,				\
 		   sdata, fmt, ##__VA_ARGS__)
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index cbaea32bccf1..4ebbcc6f67e0 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -603,6 +603,9 @@ struct ieee80211_if_mesh {
 	int ps_peers_light_sleep;
 	int ps_peers_deep_sleep;
 	struct ps_data ps;
+	/* Channel Switching Support */
+	bool chsw_init;
+	u16 pre_value;
 };
 
 #ifdef CONFIG_MAC80211_MESH
@@ -1252,6 +1255,7 @@ struct ieee802_11_elems {
 	const struct ieee80211_timeout_interval_ie *timeout_int;
 	const u8 *opmode_notif;
 	const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
+	const struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
 
 	/* length of them, respectively */
 	u8 ssid_len;
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 707ac61d63e5..0a3ccaa275f9 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -920,6 +920,82 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
 			stype, mgmt, &elems, rx_status);
 }
 
+static int mesh_fwd_csa_frame(struct ieee80211_sub_if_data *sdata,
+			       struct ieee80211_mgmt *mgmt, size_t len)
+{
+	struct ieee80211_mgmt *mgmt_fwd;
+	struct sk_buff *skb;
+	struct ieee80211_local *local = sdata->local;
+	u8 *pos = mgmt->u.action.u.chan_switch.variable;
+	size_t offset_ttl;
+
+	skb = dev_alloc_skb(local->tx_headroom + len);
+	if (!skb)
+		return -ENOMEM;
+	skb_reserve(skb, local->tx_headroom);
+	mgmt_fwd = (struct ieee80211_mgmt *) skb_put(skb, len);
+
+	/* offset_ttl is based on whether the secondary channel
+	 * offset is available or not. Substract 1 from the mesh TTL
+	 * and disable the initiator flag before forwarding.
+	 */
+	offset_ttl = (len < 42) ? 7 : 10;
+	*(pos + offset_ttl) -= 1;
+	*(pos + offset_ttl + 1) &= ~WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR;
+
+	memcpy(mgmt_fwd, mgmt, len);
+	eth_broadcast_addr(mgmt_fwd->da);
+	memcpy(mgmt_fwd->sa, sdata->vif.addr, ETH_ALEN);
+	memcpy(mgmt_fwd->bssid, sdata->vif.addr, ETH_ALEN);
+
+	ieee80211_tx_skb(sdata, skb);
+	return 0;
+}
+
+static void mesh_rx_csa_frame(struct ieee80211_sub_if_data *sdata,
+			      struct ieee80211_mgmt *mgmt, size_t len)
+{
+	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+	struct ieee802_11_elems elems;
+	u16 pre_value;
+	bool block_tx, fwd_csa = true;
+	size_t baselen;
+	u8 *pos, ttl;
+
+	if (mgmt->u.action.u.measurement.action_code !=
+	    WLAN_ACTION_SPCT_CHL_SWITCH)
+		return;
+
+	pos = mgmt->u.action.u.chan_switch.variable;
+	baselen = offsetof(struct ieee80211_mgmt,
+			   u.action.u.chan_switch.variable);
+	ieee802_11_parse_elems(pos, len - baselen, false, &elems);
+
+	ttl = elems.mesh_chansw_params_ie->mesh_ttl;
+	if (!--ttl)
+		fwd_csa = false;
+
+	pre_value = le16_to_cpu(elems.mesh_chansw_params_ie->mesh_pre_value);
+	if (ifmsh->pre_value >= pre_value)
+		return;
+
+	ifmsh->pre_value = pre_value;
+
+	/* forward or re-broadcast the CSA frame */
+	if (fwd_csa) {
+		if (mesh_fwd_csa_frame(sdata, mgmt, len) < 0)
+			mcsa_dbg(sdata, "Failed to forward the CSA frame");
+	}
+
+	/* block the Tx only after forwarding the CSA frame if required */
+	block_tx = elems.mesh_chansw_params_ie->mesh_flags &
+		   WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT;
+	if (block_tx)
+		ieee80211_stop_queues_by_reason(&sdata->local->hw,
+				IEEE80211_MAX_QUEUE_MAP,
+				IEEE80211_QUEUE_STOP_REASON_CSA);
+}
+
 static void ieee80211_mesh_rx_mgmt_action(struct ieee80211_sub_if_data *sdata,
 					  struct ieee80211_mgmt *mgmt,
 					  size_t len,
@@ -939,6 +1015,9 @@ static void ieee80211_mesh_rx_mgmt_action(struct ieee80211_sub_if_data *sdata,
 		if (mesh_action_is_path_sel(mgmt))
 			mesh_rx_path_sel_frame(sdata, mgmt, len);
 		break;
+	case WLAN_CATEGORY_SPECTRUM_MGMT:
+		mesh_rx_csa_frame(sdata, mgmt, len);
+		break;
 	}
 }
 
@@ -1056,13 +1135,11 @@ void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata)
 		    (unsigned long) sdata);
 
 	ifmsh->accepting_plinks = true;
-	ifmsh->preq_id = 0;
-	ifmsh->sn = 0;
-	ifmsh->num_gates = 0;
 	atomic_set(&ifmsh->mpaths, 0);
 	mesh_rmc_init(sdata);
 	ifmsh->last_preq = jiffies;
 	ifmsh->next_perr = jiffies;
+	ifmsh->chsw_init = false;
 	/* Allocate all mesh structures when creating the first mesh interface. */
 	if (!mesh_allocated)
 		ieee80211s_init();
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 65ebe0c5e835..523783cedf6e 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -740,6 +740,7 @@ u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
 		case WLAN_EID_TIMEOUT_INTERVAL:
 		case WLAN_EID_SECONDARY_CHANNEL_OFFSET:
 		case WLAN_EID_WIDE_BW_CHANNEL_SWITCH:
+		case WLAN_EID_CHAN_SWITCH_PARAM:
 		/*
 		 * not listing WLAN_EID_CHANNEL_SWITCH_WRAPPER -- it seems possible
 		 * that if the content gets bigger it might be needed more than once
@@ -905,6 +906,14 @@ u32 ieee802_11_parse_elems_crc(const u8 *start, size_t len, bool action,
 			}
 			elems->sec_chan_offs = (void *)pos;
 			break;
+		case WLAN_EID_CHAN_SWITCH_PARAM:
+			if (elen !=
+			    sizeof(*elems->mesh_chansw_params_ie)) {
+				elem_parse_failed = true;
+				break;
+			}
+			elems->mesh_chansw_params_ie = (void *)pos;
+			break;
 		case WLAN_EID_WIDE_BW_CHANNEL_SWITCH:
 			if (!action ||
 			    elen != sizeof(*elems->wide_bw_chansw_ie)) {
-- 
cgit 


From c6da674aff9425dc41255bcb7f7586a656843f2d Mon Sep 17 00:00:00 2001
From: Chun-Yeow Yeoh <yeohchunyeow@cozybit.com>
Date: Mon, 14 Oct 2013 19:08:28 -0700
Subject: {nl,cfg,mac}80211: enable the triggering of CSA frame in mesh

Allow the triggering of CSA frame using mesh interface. The
rules are more or less same with IBSS, such as not allowed to
change between the band and channel width has to be same from
the previous mode. Also, move the ieee80211_send_action_csa
to a common space so that it can be re-used by mesh interface.

Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/cfg.c         | 21 +++++++++++
 net/mac80211/ibss.c        | 54 ----------------------------
 net/mac80211/ieee80211_i.h |  2 ++
 net/mac80211/util.c        | 87 ++++++++++++++++++++++++++++++++++++++++++++++
 net/wireless/nl80211.c     |  1 +
 5 files changed, 111 insertions(+), 54 deletions(-)

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 67f62dac54f5..8cdbd29cbc45 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -3014,6 +3014,7 @@ static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_chanctx_conf *chanctx_conf;
 	struct ieee80211_chanctx *chanctx;
+	struct ieee80211_if_mesh __maybe_unused *ifmsh;
 	int err, num_chanctx;
 
 	if (!list_empty(&local->roc_list) || local->scanning)
@@ -3097,6 +3098,26 @@ static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 		if (err < 0)
 			return err;
 		break;
+#ifdef CONFIG_MAC80211_MESH
+	case NL80211_IFTYPE_MESH_POINT:
+		ifmsh = &sdata->u.mesh;
+
+		if (!ifmsh->mesh_id)
+			return -EINVAL;
+
+		if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
+			return -EINVAL;
+
+		/* changes into another band are not supported */
+		if (sdata->vif.bss_conf.chandef.chan->band !=
+		    params->chandef.chan->band)
+			return -EINVAL;
+
+		err = ieee80211_send_action_csa(sdata, params);
+		if (err < 0)
+			return err;
+		break;
+#endif
 	default:
 		return -EOPNOTSUPP;
 	}
diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c
index a0ae02760139..531be040b9ae 100644
--- a/net/mac80211/ibss.c
+++ b/net/mac80211/ibss.c
@@ -464,60 +464,6 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
 				  tsf, false);
 }
 
-static int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
-				     struct cfg80211_csa_settings *csa_settings)
-{
-	struct sk_buff *skb;
-	struct ieee80211_mgmt *mgmt;
-	struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
-	struct ieee80211_local *local = sdata->local;
-	int freq;
-	int hdr_len = offsetof(struct ieee80211_mgmt, u.action.u.chan_switch) +
-		      sizeof(mgmt->u.action.u.chan_switch);
-	u8 *pos;
-
-	skb = dev_alloc_skb(local->tx_headroom + hdr_len +
-			    5 +	/* channel switch announcement element */
-			    3);	/* secondary channel offset element */
-	if (!skb)
-		return -1;
-
-	skb_reserve(skb, local->tx_headroom);
-	mgmt = (struct ieee80211_mgmt *)skb_put(skb, hdr_len);
-	memset(mgmt, 0, hdr_len);
-	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
-					  IEEE80211_STYPE_ACTION);
-
-	eth_broadcast_addr(mgmt->da);
-	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
-	memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN);
-	mgmt->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT;
-	mgmt->u.action.u.chan_switch.action_code = WLAN_ACTION_SPCT_CHL_SWITCH;
-	pos = skb_put(skb, 5);
-	*pos++ = WLAN_EID_CHANNEL_SWITCH;			/* EID */
-	*pos++ = 3;						/* IE length */
-	*pos++ = csa_settings->block_tx ? 1 : 0;		/* CSA mode */
-	freq = csa_settings->chandef.chan->center_freq;
-	*pos++ = ieee80211_frequency_to_channel(freq);		/* channel */
-	*pos++ = csa_settings->count;				/* count */
-
-	if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_40) {
-		enum nl80211_channel_type ch_type;
-
-		skb_put(skb, 3);
-		*pos++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET;	/* EID */
-		*pos++ = 1;					/* IE length */
-		ch_type = cfg80211_get_chandef_type(&csa_settings->chandef);
-		if (ch_type == NL80211_CHAN_HT40PLUS)
-			*pos++ = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
-		else
-			*pos++ = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
-	}
-
-	ieee80211_tx_skb(sdata, skb);
-	return 0;
-}
-
 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
 			      struct cfg80211_csa_settings *csa_settings)
 {
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 4ebbcc6f67e0..9aad167e2ebc 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -1731,6 +1731,8 @@ void ieee80211_dfs_cac_timer(unsigned long data);
 void ieee80211_dfs_cac_timer_work(struct work_struct *work);
 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
 void ieee80211_dfs_radar_detected_work(struct work_struct *work);
+int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
+			      struct cfg80211_csa_settings *csa_settings);
 
 #ifdef CONFIG_MAC80211_NOINLINE
 #define debug_noinline noinline
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 523783cedf6e..a38d58231af8 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -2384,3 +2384,90 @@ bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
 
 	return false;
 }
+
+int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
+			      struct cfg80211_csa_settings *csa_settings)
+{
+	struct sk_buff *skb;
+	struct ieee80211_mgmt *mgmt;
+	struct ieee80211_local *local = sdata->local;
+	int freq;
+	int hdr_len = offsetof(struct ieee80211_mgmt, u.action.u.chan_switch) +
+			       sizeof(mgmt->u.action.u.chan_switch);
+	u8 *pos;
+
+	if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
+	    sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
+		return -EOPNOTSUPP;
+
+	skb = dev_alloc_skb(local->tx_headroom + hdr_len +
+			    5 + /* channel switch announcement element */
+			    3 + /* secondary channel offset element */
+			    8); /* mesh channel switch parameters element */
+	if (!skb)
+		return -ENOMEM;
+
+	skb_reserve(skb, local->tx_headroom);
+	mgmt = (struct ieee80211_mgmt *)skb_put(skb, hdr_len);
+	memset(mgmt, 0, hdr_len);
+	mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
+					  IEEE80211_STYPE_ACTION);
+
+	eth_broadcast_addr(mgmt->da);
+	memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
+	if (ieee80211_vif_is_mesh(&sdata->vif)) {
+		memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
+	} else {
+		struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
+		memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN);
+	}
+	mgmt->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT;
+	mgmt->u.action.u.chan_switch.action_code = WLAN_ACTION_SPCT_CHL_SWITCH;
+	pos = skb_put(skb, 5);
+	*pos++ = WLAN_EID_CHANNEL_SWITCH;			/* EID */
+	*pos++ = 3;						/* IE length */
+	*pos++ = csa_settings->block_tx ? 1 : 0;		/* CSA mode */
+	freq = csa_settings->chandef.chan->center_freq;
+	*pos++ = ieee80211_frequency_to_channel(freq);		/* channel */
+	*pos++ = csa_settings->count;				/* count */
+
+	if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_40) {
+		enum nl80211_channel_type ch_type;
+
+		skb_put(skb, 3);
+		*pos++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET;	/* EID */
+		*pos++ = 1;					/* IE length */
+		ch_type = cfg80211_get_chandef_type(&csa_settings->chandef);
+		if (ch_type == NL80211_CHAN_HT40PLUS)
+			*pos++ = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
+		else
+			*pos++ = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
+	}
+
+	if (ieee80211_vif_is_mesh(&sdata->vif)) {
+		struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+		__le16 pre_value;
+
+		skb_put(skb, 8);
+		*pos++ = WLAN_EID_CHAN_SWITCH_PARAM;		/* EID */
+		*pos++ = 6;					/* IE length */
+		*pos++ = sdata->u.mesh.mshcfg.dot11MeshTTL;	/* Mesh TTL */
+		*pos = 0x00;	/* Mesh Flag: Tx Restrict, Initiator, Reason */
+		*pos |= WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR;
+		*pos++ |= csa_settings->block_tx ?
+			  WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT : 0x00;
+		put_unaligned_le16(WLAN_REASON_MESH_CHAN, pos); /* Reason Cd */
+		pos += 2;
+		if (!ifmsh->pre_value)
+			ifmsh->pre_value = 1;
+		else
+			ifmsh->pre_value++;
+		pre_value = cpu_to_le16(ifmsh->pre_value);
+		memcpy(pos, &pre_value, 2);		/* Precedence Value */
+		pos += 2;
+		ifmsh->chsw_init = true;
+	}
+
+	ieee80211_tx_skb(sdata, skb);
+	return 0;
+}
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 7502d33a3a70..b8d6f101378a 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -5700,6 +5700,7 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
 			return -EINVAL;
 		break;
 	case NL80211_IFTYPE_ADHOC:
+	case NL80211_IFTYPE_MESH_POINT:
 		break;
 	default:
 		return -EOPNOTSUPP;
-- 
cgit 


From b8456a14e9d2770846fcf74de18ff95b676149a3 Mon Sep 17 00:00:00 2001
From: Chun-Yeow Yeoh <yeohchunyeow@cozybit.com>
Date: Thu, 17 Oct 2013 15:55:02 -0700
Subject: {nl,cfg,mac}80211: implement mesh channel switch userspace API

Implement the required procedures for mesh channel switching as defined
in the IEEE Std 802.11-2012 section 10.9.8.4.3 and also handle the CSA
and MCSP elements as followed:
 * Add the function for updating the beacon and probe response frames
   with CSA and MCSP elements during the period of switching to the new
   channel. Both CSA and MCSP elements must be included in beacon and
   probe response frames until the intended channel switch time.
 * The ifmsh->csa_settings is set to NULL and the CSA and MCSP elements
   will then be removed from the beacon or probe response frames once the
   new channel is switched to.

Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/cfg.c         |  9 ++++-
 net/mac80211/ieee80211_i.h | 11 ++++++
 net/mac80211/mesh.c        | 98 ++++++++++++++++++++++++++++++++++++++++++++++
 net/mac80211/rx.c          |  5 ++-
 net/mac80211/tx.c          | 16 ++++++++
 net/wireless/nl80211.c     |  3 +-
 6 files changed, 139 insertions(+), 3 deletions(-)

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 8cdbd29cbc45..5b1ccb4e0271 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2994,6 +2994,13 @@ void ieee80211_csa_finalize_work(struct work_struct *work)
 	case NL80211_IFTYPE_ADHOC:
 		ieee80211_ibss_finish_csa(sdata);
 		break;
+#ifdef CONFIG_MAC80211_MESH
+	case NL80211_IFTYPE_MESH_POINT:
+		err = ieee80211_mesh_finish_csa(sdata);
+		if (err < 0)
+			return;
+		break;
+#endif
 	default:
 		WARN_ON(1);
 		return;
@@ -3113,7 +3120,7 @@ static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
 		    params->chandef.chan->band)
 			return -EINVAL;
 
-		err = ieee80211_send_action_csa(sdata, params);
+		err = ieee80211_mesh_csa_beacon(sdata, params, true);
 		if (err < 0)
 			return err;
 		break;
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 9aad167e2ebc..5cfa160be05b 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -543,6 +543,11 @@ struct ieee80211_mesh_sync_ops {
 	/* add other framework functions here */
 };
 
+struct mesh_csa_settings {
+	struct rcu_head rcu_head;
+	struct cfg80211_csa_settings settings;
+};
+
 struct ieee80211_if_mesh {
 	struct timer_list housekeeping_timer;
 	struct timer_list mesh_path_timer;
@@ -604,7 +609,9 @@ struct ieee80211_if_mesh {
 	int ps_peers_deep_sleep;
 	struct ps_data ps;
 	/* Channel Switching Support */
+	struct mesh_csa_settings __rcu *csa;
 	bool chsw_init;
+	u8 chsw_ttl;
 	u16 pre_value;
 };
 
@@ -1356,6 +1363,10 @@ void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
 				   struct sk_buff *skb);
+int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
+			      struct cfg80211_csa_settings *csa_settings,
+			      bool csa_action);
+int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
 
 /* scan/BSS handling */
 void ieee80211_scan_work(struct work_struct *work);
diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 0a3ccaa275f9..6eb31d6fd8e1 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -12,6 +12,7 @@
 #include <asm/unaligned.h>
 #include "ieee80211_i.h"
 #include "mesh.h"
+#include "driver-ops.h"
 
 static int mesh_allocated;
 static struct kmem_cache *rm_cache;
@@ -610,6 +611,7 @@ ieee80211_mesh_build_beacon(struct ieee80211_if_mesh *ifmsh)
 	struct sk_buff *skb;
 	struct ieee80211_mgmt *mgmt;
 	struct ieee80211_chanctx_conf *chanctx_conf;
+	struct mesh_csa_settings *csa;
 	enum ieee80211_band band;
 	u8 *pos;
 	struct ieee80211_sub_if_data *sdata;
@@ -624,6 +626,10 @@ ieee80211_mesh_build_beacon(struct ieee80211_if_mesh *ifmsh)
 
 	head_len = hdr_len +
 		   2 + /* NULL SSID */
+		   /* Channel Switch Announcement */
+		   2 + sizeof(struct ieee80211_channel_sw_ie) +
+		   /* Mesh Channel Swith Parameters */
+		   2 + sizeof(struct ieee80211_mesh_chansw_params_ie) +
 		   2 + 8 + /* supported rates */
 		   2 + 3; /* DS params */
 	tail_len = 2 + (IEEE80211_MAX_SUPP_RATES - 8) +
@@ -665,6 +671,38 @@ ieee80211_mesh_build_beacon(struct ieee80211_if_mesh *ifmsh)
 	*pos++ = WLAN_EID_SSID;
 	*pos++ = 0x0;
 
+	rcu_read_lock();
+	csa = rcu_dereference(ifmsh->csa);
+	if (csa) {
+		__le16 pre_value;
+
+		pos = skb_put(skb, 13);
+		memset(pos, 0, 13);
+		*pos++ = WLAN_EID_CHANNEL_SWITCH;
+		*pos++ = 3;
+		*pos++ = 0x0;
+		*pos++ = ieee80211_frequency_to_channel(
+				csa->settings.chandef.chan->center_freq);
+		sdata->csa_counter_offset_beacon = hdr_len + 6;
+		*pos++ = csa->settings.count;
+		*pos++ = WLAN_EID_CHAN_SWITCH_PARAM;
+		*pos++ = 6;
+		if (ifmsh->chsw_init) {
+			*pos++ = ifmsh->mshcfg.dot11MeshTTL;
+			*pos |= WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR;
+		} else {
+			*pos++ = ifmsh->chsw_ttl;
+		}
+		*pos++ |= csa->settings.block_tx ?
+			  WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT : 0x00;
+		put_unaligned_le16(WLAN_REASON_MESH_CHAN, pos);
+		pos += 2;
+		pre_value = cpu_to_le16(ifmsh->pre_value);
+		memcpy(pos, &pre_value, 2);
+		pos += 2;
+	}
+	rcu_read_unlock();
+
 	if (ieee80211_add_srates_ie(sdata, skb, true, band) ||
 	    mesh_add_ds_params_ie(sdata, skb))
 		goto out_free;
@@ -920,6 +958,65 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
 			stype, mgmt, &elems, rx_status);
 }
 
+int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata)
+{
+	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+	struct mesh_csa_settings *tmp_csa_settings;
+	int ret = 0;
+
+	/* Reset the TTL value and Initiator flag */
+	ifmsh->chsw_init = false;
+	ifmsh->chsw_ttl = 0;
+
+	/* Remove the CSA and MCSP elements from the beacon */
+	tmp_csa_settings = rcu_dereference(ifmsh->csa);
+	rcu_assign_pointer(ifmsh->csa, NULL);
+	kfree_rcu(tmp_csa_settings, rcu_head);
+	ret = ieee80211_mesh_rebuild_beacon(sdata);
+	if (ret)
+		return -EINVAL;
+
+	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
+
+	mcsa_dbg(sdata, "complete switching to center freq %d MHz",
+		 sdata->vif.bss_conf.chandef.chan->center_freq);
+	return 0;
+}
+
+int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
+			      struct cfg80211_csa_settings *csa_settings,
+			      bool csa_action)
+{
+	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+	struct mesh_csa_settings *tmp_csa_settings;
+	int ret = 0;
+
+	tmp_csa_settings = kmalloc(sizeof(*tmp_csa_settings),
+				   GFP_ATOMIC);
+	if (!tmp_csa_settings)
+		return -ENOMEM;
+
+	memcpy(&tmp_csa_settings->settings, csa_settings,
+	       sizeof(struct cfg80211_csa_settings));
+
+	rcu_assign_pointer(ifmsh->csa, tmp_csa_settings);
+
+	ret = ieee80211_mesh_rebuild_beacon(sdata);
+	if (ret) {
+		tmp_csa_settings = rcu_dereference(ifmsh->csa);
+		rcu_assign_pointer(ifmsh->csa, NULL);
+		kfree_rcu(tmp_csa_settings, rcu_head);
+		return ret;
+	}
+
+	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
+
+	if (csa_action)
+		ieee80211_send_action_csa(sdata, csa_settings);
+
+	return 0;
+}
+
 static int mesh_fwd_csa_frame(struct ieee80211_sub_if_data *sdata,
 			       struct ieee80211_mgmt *mgmt, size_t len)
 {
@@ -942,6 +1039,7 @@ static int mesh_fwd_csa_frame(struct ieee80211_sub_if_data *sdata,
 	offset_ttl = (len < 42) ? 7 : 10;
 	*(pos + offset_ttl) -= 1;
 	*(pos + offset_ttl + 1) &= ~WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR;
+	sdata->u.mesh.chsw_ttl = *(pos + offset_ttl);
 
 	memcpy(mgmt_fwd, mgmt, len);
 	eth_broadcast_addr(mgmt_fwd->da);
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index f0247a43a75c..23f49e8d14c1 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2593,13 +2593,16 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
 				break;
 
 			if (sdata->vif.type != NL80211_IFTYPE_STATION &&
-			    sdata->vif.type != NL80211_IFTYPE_ADHOC)
+			    sdata->vif.type != NL80211_IFTYPE_ADHOC &&
+			    sdata->vif.type != NL80211_IFTYPE_MESH_POINT)
 				break;
 
 			if (sdata->vif.type == NL80211_IFTYPE_STATION)
 				bssid = sdata->u.mgd.bssid;
 			else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
 				bssid = sdata->u.ibss.bssid;
+			else if (sdata->vif.type == NL80211_IFTYPE_MESH_POINT)
+				bssid = mgmt->sa;
 			else
 				break;
 
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index acd9b61fbc07..9868cb72054e 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -2398,6 +2398,10 @@ static void ieee80211_update_csa(struct ieee80211_sub_if_data *sdata,
 		beacon_data = beacon->head;
 		beacon_data_len = beacon->head_len;
 		break;
+	case NL80211_IFTYPE_MESH_POINT:
+		beacon_data = beacon->head;
+		beacon_data_len = beacon->head_len;
+		break;
 	default:
 		return;
 	}
@@ -2452,6 +2456,15 @@ bool ieee80211_csa_is_complete(struct ieee80211_vif *vif)
 		if (!beacon)
 			goto out;
 
+		beacon_data = beacon->head;
+		beacon_data_len = beacon->head_len;
+	} else if (vif->type == NL80211_IFTYPE_MESH_POINT) {
+		struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+
+		beacon = rcu_dereference(ifmsh->beacon);
+		if (!beacon)
+			goto out;
+
 		beacon_data = beacon->head;
 		beacon_data_len = beacon->head_len;
 	} else {
@@ -2559,6 +2572,9 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw,
 		if (!bcn)
 			goto out;
 
+		if (sdata->vif.csa_active)
+			ieee80211_update_csa(sdata, bcn);
+
 		if (ifmsh->sync_ops)
 			ifmsh->sync_ops->adjust_tbtt(
 						sdata);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index b8d6f101378a..c49f0af61d5e 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -10813,7 +10813,8 @@ void cfg80211_ch_switch_notify(struct net_device *dev,
 
 	if (WARN_ON(wdev->iftype != NL80211_IFTYPE_AP &&
 		    wdev->iftype != NL80211_IFTYPE_P2P_GO &&
-		    wdev->iftype != NL80211_IFTYPE_ADHOC))
+		    wdev->iftype != NL80211_IFTYPE_ADHOC &&
+		    wdev->iftype != NL80211_IFTYPE_MESH_POINT))
 		goto out;
 
 	wdev->channel = chandef->chan;
-- 
cgit 


From 33a45867c56074a23d01e286890e3b61f3ff8fff Mon Sep 17 00:00:00 2001
From: Chun-Yeow Yeoh <yeohchunyeow@cozybit.com>
Date: Thu, 17 Oct 2013 15:55:18 -0700
Subject: mac80211: process mesh channel switching using beacon

Trigger the mesh channel switching procedure if the mesh STA
happens to miss the CSA action frame but able to receive the
beacon containing the CSA and MCSP elements from its peer
mesh STAs.

Signed-off-by: Chun-Yeow Yeoh <yeohchunyeow@cozybit.com>
[fix locking in ieee80211_mesh_process_chnswitch()]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/mesh.c      | 139 ++++++++++++++++++++++++++++++++++++++++++++---
 net/mac80211/spectmgmt.c |   6 ++
 2 files changed, 136 insertions(+), 9 deletions(-)

diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 6eb31d6fd8e1..896fe3bd599e 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -850,6 +850,127 @@ void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
 	ieee80211_configure_filter(local);
 }
 
+static bool
+ieee80211_mesh_process_chnswitch(struct ieee80211_sub_if_data *sdata,
+				 struct ieee802_11_elems *elems, bool beacon)
+{
+	struct cfg80211_csa_settings params;
+	struct ieee80211_csa_ie csa_ie;
+	struct ieee80211_chanctx_conf *chanctx_conf;
+	struct ieee80211_chanctx *chanctx;
+	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
+	enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
+	int err, num_chanctx;
+	u32 sta_flags;
+
+	if (sdata->vif.csa_active)
+		return true;
+
+	if (!ifmsh->mesh_id)
+		return false;
+
+	sta_flags = IEEE80211_STA_DISABLE_VHT;
+	switch (sdata->vif.bss_conf.chandef.width) {
+	case NL80211_CHAN_WIDTH_20_NOHT:
+		sta_flags |= IEEE80211_STA_DISABLE_HT;
+	case NL80211_CHAN_WIDTH_20:
+		sta_flags |= IEEE80211_STA_DISABLE_40MHZ;
+		break;
+	default:
+		break;
+	}
+
+	memset(&params, 0, sizeof(params));
+	memset(&csa_ie, 0, sizeof(csa_ie));
+	err = ieee80211_parse_ch_switch_ie(sdata, elems, beacon, band,
+					   sta_flags, sdata->vif.addr,
+					   &csa_ie);
+	if (err < 0)
+		return false;
+	if (err)
+		return false;
+
+	params.chandef = csa_ie.chandef;
+	params.count = csa_ie.count;
+
+	if (sdata->vif.bss_conf.chandef.chan->band !=
+	    params.chandef.chan->band)
+		return false;
+
+	if (!cfg80211_chandef_usable(sdata->local->hw.wiphy, &params.chandef,
+				     IEEE80211_CHAN_DISABLED)) {
+		sdata_info(sdata,
+			   "mesh STA %pM switches to unsupported channel (%d MHz, width:%d, CF1/2: %d/%d MHz), aborting\n",
+			   sdata->vif.addr,
+			   params.chandef.chan->center_freq,
+			   params.chandef.width,
+			   params.chandef.center_freq1,
+			   params.chandef.center_freq2);
+		return false;
+	}
+
+	err = cfg80211_chandef_dfs_required(sdata->local->hw.wiphy,
+					    &params.chandef);
+	if (err < 0)
+		return false;
+	if (err) {
+		params.radar_required = true;
+		/* TODO: DFS not (yet) supported */
+		return false;
+	}
+
+	rcu_read_lock();
+	chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+	if (!chanctx_conf)
+		goto failed_chswitch;
+
+	/* don't handle for multi-VIF cases */
+	chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
+	if (chanctx->refcount > 1)
+		goto failed_chswitch;
+
+	num_chanctx = 0;
+	list_for_each_entry_rcu(chanctx, &sdata->local->chanctx_list, list)
+		num_chanctx++;
+
+	if (num_chanctx > 1)
+		goto failed_chswitch;
+
+	rcu_read_unlock();
+
+	mcsa_dbg(sdata,
+		 "received channel switch announcement to go to channel %d MHz\n",
+		 params.chandef.chan->center_freq);
+
+	params.block_tx = csa_ie.mode & WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT;
+	if (beacon)
+		ifmsh->chsw_ttl = csa_ie.ttl - 1;
+	else
+		ifmsh->chsw_ttl = 0;
+
+	if (ifmsh->chsw_ttl > 0)
+		if (ieee80211_mesh_csa_beacon(sdata, &params, false) < 0)
+			return false;
+
+	sdata->csa_radar_required = params.radar_required;
+
+	if (params.block_tx)
+		ieee80211_stop_queues_by_reason(&sdata->local->hw,
+				IEEE80211_MAX_QUEUE_MAP,
+				IEEE80211_QUEUE_STOP_REASON_CSA);
+
+	sdata->local->csa_chandef = params.chandef;
+	sdata->vif.csa_active = true;
+
+	ieee80211_bss_info_change_notify(sdata, err);
+	drv_channel_switch_beacon(sdata, &params.chandef);
+
+	return true;
+failed_chswitch:
+	rcu_read_unlock();
+	return false;
+}
+
 static void
 ieee80211_mesh_rx_probe_req(struct ieee80211_sub_if_data *sdata,
 			    struct ieee80211_mgmt *mgmt, size_t len)
@@ -956,6 +1077,9 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
 	if (ifmsh->sync_ops)
 		ifmsh->sync_ops->rx_bcn_presp(sdata,
 			stype, mgmt, &elems, rx_status);
+
+	if (!ifmsh->chsw_init)
+		ieee80211_mesh_process_chnswitch(sdata, &elems, true);
 }
 
 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata)
@@ -1056,7 +1180,7 @@ static void mesh_rx_csa_frame(struct ieee80211_sub_if_data *sdata,
 	struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
 	struct ieee802_11_elems elems;
 	u16 pre_value;
-	bool block_tx, fwd_csa = true;
+	bool fwd_csa = true;
 	size_t baselen;
 	u8 *pos, ttl;
 
@@ -1079,19 +1203,16 @@ static void mesh_rx_csa_frame(struct ieee80211_sub_if_data *sdata,
 
 	ifmsh->pre_value = pre_value;
 
+	if (!ieee80211_mesh_process_chnswitch(sdata, &elems, false)) {
+		mcsa_dbg(sdata, "Failed to process CSA action frame");
+		return;
+	}
+
 	/* forward or re-broadcast the CSA frame */
 	if (fwd_csa) {
 		if (mesh_fwd_csa_frame(sdata, mgmt, len) < 0)
 			mcsa_dbg(sdata, "Failed to forward the CSA frame");
 	}
-
-	/* block the Tx only after forwarding the CSA frame if required */
-	block_tx = elems.mesh_chansw_params_ie->mesh_flags &
-		   WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT;
-	if (block_tx)
-		ieee80211_stop_queues_by_reason(&sdata->local->hw,
-				IEEE80211_MAX_QUEUE_MAP,
-				IEEE80211_QUEUE_STOP_REASON_CSA);
 }
 
 static void ieee80211_mesh_rx_mgmt_action(struct ieee80211_sub_if_data *sdata,
diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c
index a298e129633b..a40da20b32e0 100644
--- a/net/mac80211/spectmgmt.c
+++ b/net/mac80211/spectmgmt.c
@@ -74,6 +74,12 @@ int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
 		return 1;
 	}
 
+	/* Mesh Channel Switch Parameters Element */
+	if (elems->mesh_chansw_params_ie) {
+		csa_ie->ttl = elems->mesh_chansw_params_ie->mesh_ttl;
+		csa_ie->mode = elems->mesh_chansw_params_ie->mesh_flags;
+	}
+
 	new_freq = ieee80211_channel_to_frequency(new_chan_no, new_band);
 	new_chan = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
 	if (!new_chan || new_chan->flags & IEEE80211_CHAN_DISABLED) {
-- 
cgit 


From 0951ebb8aa219115cec6a53c033ee34715a248db Mon Sep 17 00:00:00 2001
From: Michal Kazior <michal.kazior@tieto.com>
Date: Fri, 18 Oct 2013 14:57:00 -0700
Subject: mac80211: fix uninitialized variable

CSA completion could call in a driver
bss_info_changed() with a garbled `changed` flag
leading to all sorts of problems.

Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/mac80211/cfg.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 5b1ccb4e0271..ed1e9a84fab8 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2962,7 +2962,7 @@ void ieee80211_csa_finalize_work(struct work_struct *work)
 		container_of(work, struct ieee80211_sub_if_data,
 			     csa_finalize_work);
 	struct ieee80211_local *local = sdata->local;
-	int err, changed;
+	int err, changed = 0;
 
 	if (!ieee80211_sdata_running(sdata))
 		return;
-- 
cgit 


From 0bb861e6be624111e9f85ade89b9e7548c5eb968 Mon Sep 17 00:00:00 2001
From: Jouni Malinen <jouni@qca.qualcomm.com>
Date: Tue, 22 Oct 2013 14:11:17 +0300
Subject: mac80211_hwsim: Fix tracking of beaconing for multi-vif

mac80211_hwsim canceled beacon_timer on any vif changing from enabled
to disabled beaconing. This breaks cases where there are multiple
beaconing vifs and only one of them is removed. Fix this by tracking
beaconing status per vif and disable beacon_timer only if no active vif
remain with beaconing enabled.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 drivers/net/wireless/mac80211_hwsim.c | 27 ++++++++++++++++++++++++---
 1 file changed, 24 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 2cd3f54e1efa..de0df86704e7 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -167,6 +167,7 @@ struct hwsim_vif_priv {
 	u32 magic;
 	u8 bssid[ETH_ALEN];
 	bool assoc;
+	bool bcn_en;
 	u16 aid;
 };
 
@@ -1170,6 +1171,16 @@ static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
 	*total_flags = data->rx_filter;
 }
 
+static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
+				       struct ieee80211_vif *vif)
+{
+	unsigned int *count = data;
+	struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
+
+	if (vp->bcn_en)
+		(*count)++;
+}
+
 static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
 					    struct ieee80211_vif *vif,
 					    struct ieee80211_bss_conf *info,
@@ -1180,7 +1191,8 @@ static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
 
 	hwsim_check_magic(vif);
 
-	wiphy_debug(hw->wiphy, "%s(changed=0x%x)\n", __func__, changed);
+	wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
+		    __func__, changed, vif->addr);
 
 	if (changed & BSS_CHANGED_BSSID) {
 		wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
@@ -1202,6 +1214,7 @@ static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
 
 	if (changed & BSS_CHANGED_BEACON_ENABLED) {
 		wiphy_debug(hw->wiphy, "  BCN EN: %d\n", info->enable_beacon);
+		vp->bcn_en = info->enable_beacon;
 		if (data->started &&
 		    !hrtimer_is_queued(&data->beacon_timer.timer) &&
 		    info->enable_beacon) {
@@ -1215,8 +1228,16 @@ static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
 			tasklet_hrtimer_start(&data->beacon_timer,
 					      ns_to_ktime(until_tbtt * 1000),
 					      HRTIMER_MODE_REL);
-		} else if (!info->enable_beacon)
-			tasklet_hrtimer_cancel(&data->beacon_timer);
+		} else if (!info->enable_beacon) {
+			unsigned int count = 0;
+			ieee80211_iterate_active_interfaces(
+				data->hw, IEEE80211_IFACE_ITER_NORMAL,
+				mac80211_hwsim_bcn_en_iter, &count);
+			wiphy_debug(hw->wiphy, "  beaconing vifs remaining: %u",
+				    count);
+			if (count == 0)
+				tasklet_hrtimer_cancel(&data->beacon_timer);
+		}
 	}
 
 	if (changed & BSS_CHANGED_ERP_CTS_PROT) {
-- 
cgit 


From d0a361a5b3f5aa28778a0c336de5a911fc0cd678 Mon Sep 17 00:00:00 2001
From: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
Date: Thu, 17 Oct 2013 10:52:17 +0200
Subject: nl80211: fix channel switch parsing

The nl80211 attribute NL80211_ATTR_CSA_C_OFF_BEACON should be nested
inside NL80211_ATTR_CSA_IES, but commit ee4bc9e75811d2c0cb5f2a2fc5b5
("nl80211: enable IBSS support for channel switch announcements")
added a check in the outer message attributes.

Fix channel switch calls by removing the erroneus condition.

Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
[reword commit message]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---
 net/wireless/nl80211.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index c49f0af61d5e..8ced6bc29f4a 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -5713,9 +5713,7 @@ static int nl80211_channel_switch(struct sk_buff *skb, struct genl_info *info)
 		return -EINVAL;
 
 	/* only important for AP, IBSS and mesh create IEs internally */
-	if (need_new_beacon &&
-	    (!info->attrs[NL80211_ATTR_CSA_IES] ||
-	     !info->attrs[NL80211_ATTR_CSA_C_OFF_BEACON]))
+	if (need_new_beacon && !info->attrs[NL80211_ATTR_CSA_IES])
 		return -EINVAL;
 
 	params.count = nla_get_u32(info->attrs[NL80211_ATTR_CH_SWITCH_COUNT]);
-- 
cgit 


From 7ff8d45c9dccf0744404d6fe44468ede7c1b9533 Mon Sep 17 00:00:00 2001
From: Steve French <smfrench@gmail.com>
Date: Mon, 14 Oct 2013 00:44:19 -0500
Subject: Fix corrupt SMB2 ioctl requests

We were off by one calculating the length of ioctls in some cases
because the protocol specification for SMB2 ioctl includes a mininum
one byte payload but not all SMB2 ioctl requests actually have
a data buffer to send. We were also not zeroing out the
return buffer (in case of error this is helpful).

Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/smb2pdu.c | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index edccb5252462..6e1868611233 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -1137,6 +1137,7 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
 
 	cifs_dbg(FYI, "SMB2 IOCTL\n");
 
+	*out_data = NULL;
 	/* zero out returned data len, in case of error */
 	if (plen)
 		*plen = 0;
@@ -1182,11 +1183,23 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
 		req->Flags = 0;
 
 	iov[0].iov_base = (char *)req;
-	/* 4 for rfc1002 length field */
-	iov[0].iov_len = get_rfc1002_length(req) + 4;
 
-	if (indatalen)
-		inc_rfc1001_len(req, indatalen);
+	/*
+	 * If no input data, the size of ioctl struct in
+	 * protocol spec still includes a 1 byte data buffer,
+	 * but if input data passed to ioctl, we do not
+	 * want to double count this, so we do not send
+	 * the dummy one byte of data in iovec[0] if sending
+	 * input data (in iovec[1]). We also must add 4 bytes
+	 * in first iovec to allow for rfc1002 length field.
+	 */
+
+	if (indatalen) {
+		iov[0].iov_len = get_rfc1002_length(req) + 4 - 1;
+		inc_rfc1001_len(req, indatalen - 1);
+	} else
+		iov[0].iov_len = get_rfc1002_length(req) + 4;
+
 
 	rc = SendReceive2(xid, ses, iov, num_iovecs, &resp_buftype, 0);
 	rsp = (struct smb2_ioctl_rsp *)iov[0].iov_base;
-- 
cgit 


From 64a5cfa6db94c5abba2cafe77aca077dd1e3283b Mon Sep 17 00:00:00 2001
From: Steve French <smfrench@gmail.com>
Date: Mon, 14 Oct 2013 15:31:32 -0500
Subject: Allow setting per-file compression via SMB2/3

Allow cifs/smb2/smb3 to return whether or not a file is compressed
via lsattr, and allow SMB2/SMB3 to set the per-file compression
flag ("chattr +c filename" on an smb3 mount).

Windows users often set the compressed flag (it can be
done from the desktop and file manager).  David Disseldorp
has patches to Samba server to support this (at least on btrfs)
which are complementary to this

Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/cifsglob.h  |  2 ++
 fs/cifs/ioctl.c     | 55 +++++++++++++++++++++++++++++++++++------------------
 fs/cifs/smb2ops.c   | 11 +++++++++++
 fs/cifs/smb2pdu.c   | 27 ++++++++++++++++++++++++++
 fs/cifs/smb2pdu.h   |  9 ++++++++-
 fs/cifs/smb2proto.h |  2 ++
 6 files changed, 87 insertions(+), 19 deletions(-)

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 52b6f6c26bfc..06e8947fc370 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -278,6 +278,8 @@ struct smb_version_operations {
 	/* set attributes */
 	int (*set_file_info)(struct inode *, const char *, FILE_BASIC_INFO *,
 			     const unsigned int);
+	int (*set_compression)(const unsigned int, struct cifs_tcon *,
+			       struct cifsFileInfo *);
 	/* check if we can send an echo or nor */
 	bool (*can_echo)(struct TCP_Server_Info *);
 	/* send echo request */
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index 3e0845585853..029867078aff 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -3,7 +3,7 @@
  *
  *   vfs operations that deal with io control
  *
- *   Copyright (C) International Business Machines  Corp., 2005,2007
+ *   Copyright (C) International Business Machines  Corp., 2005,2013
  *   Author(s): Steve French (sfrench@us.ibm.com)
  *
  *   This library is free software; you can redistribute it and/or modify
@@ -34,13 +34,11 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
 	int rc = -ENOTTY; /* strange error - but the precedent */
 	unsigned int xid;
 	struct cifs_sb_info *cifs_sb;
-#ifdef CONFIG_CIFS_POSIX
 	struct cifsFileInfo *pSMBFile = filep->private_data;
 	struct cifs_tcon *tcon;
 	__u64	ExtAttrBits = 0;
 	__u64	ExtAttrMask = 0;
 	__u64   caps;
-#endif /* CONFIG_CIFS_POSIX */
 
 	xid = get_xid();
 
@@ -49,12 +47,12 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
 	cifs_sb = CIFS_SB(inode->i_sb);
 
 	switch (command) {
-#ifdef CONFIG_CIFS_POSIX
 		case FS_IOC_GETFLAGS:
 			if (pSMBFile == NULL)
 				break;
 			tcon = tlink_tcon(pSMBFile->tlink);
 			caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
+#ifdef CONFIG_CIFS_POSIX
 			if (CIFS_UNIX_EXTATTR_CAP & caps) {
 				rc = CIFSGetExtAttr(xid, tcon,
 						    pSMBFile->fid.netfid,
@@ -63,29 +61,50 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
 					rc = put_user(ExtAttrBits &
 						FS_FL_USER_VISIBLE,
 						(int __user *)arg);
+				if (rc != EOPNOTSUPP)
+					break;
+			}
+#endif /* CONFIG_CIFS_POSIX */
+			rc = 0;
+			if (CIFS_I(inode)->cifsAttrs & ATTR_COMPRESSED) {
+				/* add in the compressed bit */
+				ExtAttrBits = FS_COMPR_FL;
+				rc = put_user(ExtAttrBits & FS_FL_USER_VISIBLE,
+					      (int __user *)arg);
 			}
 			break;
-
 		case FS_IOC_SETFLAGS:
 			if (pSMBFile == NULL)
 				break;
 			tcon = tlink_tcon(pSMBFile->tlink);
 			caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
-			if (CIFS_UNIX_EXTATTR_CAP & caps) {
-				if (get_user(ExtAttrBits, (int __user *)arg)) {
-					rc = -EFAULT;
-					break;
-				}
-				/*
-				 * rc = CIFSGetExtAttr(xid, tcon,
-				 *		       pSMBFile->fid.netfid,
-				 *		       extAttrBits,
-				 *		       &ExtAttrMask);
-				 */
+
+			if (get_user(ExtAttrBits, (int __user *)arg)) {
+				rc = -EFAULT;
+				break;
+			}
+
+			/*
+			 * if (CIFS_UNIX_EXTATTR_CAP & caps)
+			 *	rc = CIFSSetExtAttr(xid, tcon,
+			 *		       pSMBFile->fid.netfid,
+			 *		       extAttrBits,
+			 *		       &ExtAttrMask);
+			 * if (rc != EOPNOTSUPP)
+			 *	break;
+			 */
+
+			/* Currently only flag we can set is compressed flag */
+			if ((ExtAttrBits & FS_COMPR_FL) == 0)
+				break;
+
+			/* Try to set compress flag */
+			if (tcon->ses->server->ops->set_compression) {
+				rc = tcon->ses->server->ops->set_compression(
+							xid, tcon, pSMBFile);
+				cifs_dbg(FYI, "set compress flag rc %d\n", rc);
 			}
-			cifs_dbg(FYI, "set flags not implemented yet\n");
 			break;
-#endif /* CONFIG_CIFS_POSIX */
 		default:
 			cifs_dbg(FYI, "unsupported ioctl\n");
 			break;
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 861b33214144..b96bacce955a 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -445,6 +445,14 @@ smb2_set_file_size(const unsigned int xid, struct cifs_tcon *tcon,
 			    cfile->fid.volatile_fid, cfile->pid, &eof);
 }
 
+static int
+smb2_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
+		   struct cifsFileInfo *cfile)
+{
+	return SMB2_set_compression(xid, tcon, cfile->fid.persistent_fid,
+			    cfile->fid.volatile_fid);
+}
+
 static int
 smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon,
 		     const char *path, struct cifs_sb_info *cifs_sb,
@@ -874,6 +882,7 @@ struct smb_version_operations smb20_operations = {
 	.set_path_size = smb2_set_path_size,
 	.set_file_size = smb2_set_file_size,
 	.set_file_info = smb2_set_file_info,
+	.set_compression = smb2_set_compression,
 	.mkdir = smb2_mkdir,
 	.mkdir_setinfo = smb2_mkdir_setinfo,
 	.rmdir = smb2_rmdir,
@@ -945,6 +954,7 @@ struct smb_version_operations smb21_operations = {
 	.set_path_size = smb2_set_path_size,
 	.set_file_size = smb2_set_file_size,
 	.set_file_info = smb2_set_file_info,
+	.set_compression = smb2_set_compression,
 	.mkdir = smb2_mkdir,
 	.mkdir_setinfo = smb2_mkdir_setinfo,
 	.rmdir = smb2_rmdir,
@@ -1017,6 +1027,7 @@ struct smb_version_operations smb30_operations = {
 	.set_path_size = smb2_set_path_size,
 	.set_file_size = smb2_set_file_size,
 	.set_file_info = smb2_set_file_info,
+	.set_compression = smb2_set_compression,
 	.mkdir = smb2_mkdir,
 	.mkdir_setinfo = smb2_mkdir_setinfo,
 	.rmdir = smb2_rmdir,
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 6e1868611233..bbafa12e83b2 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -1247,6 +1247,33 @@ ioctl_exit:
 	return rc;
 }
 
+/*
+ *   Individual callers to ioctl worker function follow
+ */
+
+int
+SMB2_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
+		     u64 persistent_fid, u64 volatile_fid)
+{
+	int rc;
+	char *res_key = NULL;
+	struct  compress_ioctl fsctl_input;
+	char *ret_data = NULL;
+
+	fsctl_input.CompressionState =
+			__constant_cpu_to_le16(COMPRESSION_FORMAT_DEFAULT);
+
+	rc = SMB2_ioctl(xid, tcon, persistent_fid, volatile_fid,
+			FSCTL_SET_COMPRESSION, true /* is_fsctl */,
+			(char *)&fsctl_input /* data input */,
+			2 /* in data len */, &ret_data /* out data */, NULL);
+
+	cifs_dbg(FYI, "set compression rc %d\n", rc);
+	kfree(res_key);
+
+	return rc;
+}
+
 int
 SMB2_close(const unsigned int xid, struct cifs_tcon *tcon,
 	   u64 persistent_fid, u64 volatile_fid)
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index b83d0118a757..c7c3c8294d1a 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -569,6 +569,13 @@ struct network_interface_info_ioctl_rsp {
 
 #define NO_FILE_ID 0xFFFFFFFFFFFFFFFFULL /* general ioctls to srv not to file */
 
+struct compress_ioctl {
+	__le16 CompressionState;
+} __packed;
+
+#define COMPRESSION_FORMAT_NONE		0x0000
+#define COMPRESSION_FORMAT_DEFAULT	0x0001
+#define COMPRESSION_FORMAT_LZNT1	0x0002
 struct smb2_ioctl_req {
 	struct smb2_hdr hdr;
 	__le16 StructureSize;	/* Must be 57 */
@@ -584,7 +591,7 @@ struct smb2_ioctl_req {
 	__le32 MaxOutputResponse;
 	__le32 Flags;
 	__u32  Reserved2;
-	char   Buffer[0];
+	__u8   Buffer[0];
 } __packed;
 
 struct smb2_ioctl_rsp {
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index e3fb4801ee96..3cf22e39420d 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -142,6 +142,8 @@ extern int SMB2_set_eof(const unsigned int xid, struct cifs_tcon *tcon,
 extern int SMB2_set_info(const unsigned int xid, struct cifs_tcon *tcon,
 			 u64 persistent_fid, u64 volatile_fid,
 			 FILE_BASIC_INFO *buf);
+extern int SMB2_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
+				u64 persistent_fid, u64 volatile_fid);
 extern int SMB2_oplock_break(const unsigned int xid, struct cifs_tcon *tcon,
 			     const u64 persistent_fid, const u64 volatile_fid,
 			     const __u8 oplock_level);
-- 
cgit 


From 34f626406c09dd45878ce75170abab342985ec24 Mon Sep 17 00:00:00 2001
From: Steve French <smfrench@gmail.com>
Date: Wed, 9 Oct 2013 02:07:00 -0500
Subject: Query file system attributes from server on SMB2, not just cifs,
 mounts

Currently SMB2 and SMB3 mounts do not query the file system attributes
from the server at mount time as is done for cifs.  These can be useful for debugging.

Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/cifspdu.h   |  3 +++
 fs/cifs/smb2ops.c   | 28 ++++++++++++++++++++++++++++
 fs/cifs/smb2pdu.c   | 42 ++++++++++++++++++++++++++++++++++++++++--
 fs/cifs/smb2proto.h |  2 ++
 4 files changed, 73 insertions(+), 2 deletions(-)

diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index 08f9dfb1a894..d40bd77a2392 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -2215,6 +2215,9 @@ typedef struct {
 	__le32 DeviceCharacteristics;
 } __attribute__((packed)) FILE_SYSTEM_DEVICE_INFO; /* device info level 0x104 */
 
+/* minimum includes first three fields, and empty FS Name */
+#define MIN_FS_ATTR_INFO_SIZE 12
+
 typedef struct {
 	__le32 Attributes;
 	__le32 MaxPathNameComponentLength;
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index b96bacce955a..a53e2053ae9d 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -209,6 +209,31 @@ smb2_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *volume_info)
 	return rsize;
 }
 
+static void
+smb2_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
+{
+	int rc;
+	__le16 srch_path = 0; /* Null - open root of share */
+	u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
+	struct cifs_open_parms oparms;
+	struct cifs_fid fid;
+
+	oparms.tcon = tcon;
+	oparms.desired_access = FILE_READ_ATTRIBUTES;
+	oparms.disposition = FILE_OPEN;
+	oparms.create_options = 0;
+	oparms.fid = &fid;
+	oparms.reconnect = false;
+
+	rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL);
+	if (rc)
+		return;
+
+	SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid);
+	SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
+	return;
+}
+
 static int
 smb2_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon,
 			struct cifs_sb_info *cifs_sb, const char *full_path)
@@ -873,6 +898,7 @@ struct smb_version_operations smb20_operations = {
 	.logoff = SMB2_logoff,
 	.tree_connect = SMB2_tcon,
 	.tree_disconnect = SMB2_tdis,
+	.qfs_tcon = smb2_qfs_tcon,
 	.is_path_accessible = smb2_is_path_accessible,
 	.can_echo = smb2_can_echo,
 	.echo = SMB2_echo,
@@ -945,6 +971,7 @@ struct smb_version_operations smb21_operations = {
 	.logoff = SMB2_logoff,
 	.tree_connect = SMB2_tcon,
 	.tree_disconnect = SMB2_tdis,
+	.qfs_tcon = smb2_qfs_tcon,
 	.is_path_accessible = smb2_is_path_accessible,
 	.can_echo = smb2_can_echo,
 	.echo = SMB2_echo,
@@ -1018,6 +1045,7 @@ struct smb_version_operations smb30_operations = {
 	.logoff = SMB2_logoff,
 	.tree_connect = SMB2_tcon,
 	.tree_disconnect = SMB2_tdis,
+	.qfs_tcon = smb2_qfs_tcon,
 	.is_path_accessible = smb2_is_path_accessible,
 	.can_echo = smb2_can_echo,
 	.echo = SMB2_echo,
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index bbafa12e83b2..df12cf8bd979 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -2339,7 +2339,7 @@ SMB2_QFS_info(const unsigned int xid, struct cifs_tcon *tcon,
 	rc = SendReceive2(xid, ses, &iov, 1, &resp_buftype, 0);
 	if (rc) {
 		cifs_stats_fail_inc(tcon, SMB2_QUERY_INFO_HE);
-		goto qinf_exit;
+		goto qfsinf_exit;
 	}
 	rsp = (struct smb2_query_info_rsp *)iov.iov_base;
 
@@ -2351,7 +2351,45 @@ SMB2_QFS_info(const unsigned int xid, struct cifs_tcon *tcon,
 	if (!rc)
 		copy_fs_info_to_kstatfs(info, fsdata);
 
-qinf_exit:
+qfsinf_exit:
+	free_rsp_buf(resp_buftype, iov.iov_base);
+	return rc;
+}
+
+int
+SMB2_QFS_attr(const unsigned int xid, struct cifs_tcon *tcon,
+	      u64 persistent_fid, u64 volatile_fid)
+{
+	struct smb2_query_info_rsp *rsp = NULL;
+	struct kvec iov;
+	int rc = 0;
+	int resp_buftype;
+	struct cifs_ses *ses = tcon->ses;
+	unsigned int rsp_len, offset;
+
+	rc = build_qfs_info_req(&iov, tcon, SMB_QUERY_FS_ATTRIBUTE_INFO,
+				sizeof(FILE_SYSTEM_ATTRIBUTE_INFO),
+				persistent_fid, volatile_fid);
+	if (rc)
+		return rc;
+
+	rc = SendReceive2(xid, ses, &iov, 1, &resp_buftype, 0);
+	if (rc) {
+		cifs_stats_fail_inc(tcon, SMB2_QUERY_INFO_HE);
+		goto qfsattr_exit;
+	}
+	rsp = (struct smb2_query_info_rsp *)iov.iov_base;
+
+	rsp_len = le32_to_cpu(rsp->OutputBufferLength);
+	offset = le16_to_cpu(rsp->OutputBufferOffset);
+	rc = validate_buf(offset, rsp_len, &rsp->hdr, MIN_FS_ATTR_INFO_SIZE);
+	if (!rc) {
+		memcpy(&tcon->fsAttrInfo, 4 /* RFC1001 len */ + offset
+			+ (char *)&rsp->hdr, min_t(unsigned int,
+			rsp_len, sizeof(FILE_SYSTEM_ATTRIBUTE_INFO)));
+	}
+
+qfsattr_exit:
 	free_rsp_buf(resp_buftype, iov.iov_base);
 	return rc;
 }
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index 3cf22e39420d..68dc00d5fb12 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -150,6 +150,8 @@ extern int SMB2_oplock_break(const unsigned int xid, struct cifs_tcon *tcon,
 extern int SMB2_QFS_info(const unsigned int xid, struct cifs_tcon *tcon,
 			 u64 persistent_file_id, u64 volatile_file_id,
 			 struct kstatfs *FSData);
+extern int SMB2_QFS_attr(const unsigned int xid, struct cifs_tcon *tcon,
+			 u64 persistent_file_id, u64 volatile_file_id);
 extern int SMB2_lock(const unsigned int xid, struct cifs_tcon *tcon,
 		     const __u64 persist_fid, const __u64 volatile_fid,
 		     const __u32 pid, const __u64 length, const __u64 offset,
-- 
cgit 


From 944d6f1a5b8f42a780a65378e5f52bea3ae0ce07 Mon Sep 17 00:00:00 2001
From: Tim Gardner <timg@tpi.com>
Date: Wed, 16 Oct 2013 09:09:49 -0600
Subject: cifs: Remove redundant multiplex identifier check from
 check_smb_hdr()

The only call site for check_smb_header() assigns 'mid' from the SMB
packet, which is then checked again in check_smb_header(). This seems
like redundant redundancy.

Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Tim Gardner <timg@tpi.com>
Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/misc.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 138a011633fe..298e31e3bdc6 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -278,7 +278,7 @@ header_assemble(struct smb_hdr *buffer, char smb_command /* command */ ,
 }
 
 static int
-check_smb_hdr(struct smb_hdr *smb, __u16 mid)
+check_smb_hdr(struct smb_hdr *smb)
 {
 	/* does it have the right SMB "signature" ? */
 	if (*(__le32 *) smb->Protocol != cpu_to_le32(0x424d53ff)) {
@@ -287,13 +287,6 @@ check_smb_hdr(struct smb_hdr *smb, __u16 mid)
 		return 1;
 	}
 
-	/* Make sure that message ids match */
-	if (mid != smb->Mid) {
-		cifs_dbg(VFS, "Mids do not match. received=%u expected=%u\n",
-			 smb->Mid, mid);
-		return 1;
-	}
-
 	/* if it's a response then accept */
 	if (smb->Flags & SMBFLG_RESPONSE)
 		return 0;
@@ -310,7 +303,6 @@ int
 checkSMB(char *buf, unsigned int total_read)
 {
 	struct smb_hdr *smb = (struct smb_hdr *)buf;
-	__u16 mid = smb->Mid;
 	__u32 rfclen = be32_to_cpu(smb->smb_buf_length);
 	__u32 clc_len;  /* calculated length */
 	cifs_dbg(FYI, "checkSMB Length: 0x%x, smb_buf_length: 0x%x\n",
@@ -348,7 +340,7 @@ checkSMB(char *buf, unsigned int total_read)
 	}
 
 	/* otherwise, there is enough to get to the BCC */
-	if (check_smb_hdr(smb, mid))
+	if (check_smb_hdr(smb))
 		return -EIO;
 	clc_len = smbCalcSize(smb);
 
-- 
cgit 


From 63437313daaf90b372d5b383a8cc6ec8dce185fa Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 28 Oct 2013 16:08:27 +0100
Subject: ALSA: memalloc: Yet another ifdef CONFIG_GENERIC_ALLOCATOR protection

I obviously forgot to merge the right version...

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/core/memalloc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c
index 51a79218815b..809fd79ecad6 100644
--- a/sound/core/memalloc.c
+++ b/sound/core/memalloc.c
@@ -159,6 +159,7 @@ static void snd_free_dev_pages(struct device *dev, size_t size, void *ptr,
 	dma_free_coherent(dev, PAGE_SIZE << pg, ptr, dma);
 }
 
+#ifdef CONFIG_GENERIC_ALLOCATOR
 /**
  * snd_malloc_dev_iram - allocate memory from on-chip internal ram
  * @dmab: buffer allocation record to store the allocated data
@@ -198,6 +199,7 @@ void snd_free_dev_iram(struct snd_dma_buffer *dmab)
 	if (pool && dmab->area)
 		gen_pool_free(pool, (unsigned long)dmab->area, dmab->bytes);
 }
+#endif /* CONFIG_GENERIC_ALLOCATOR */
 #endif /* CONFIG_HAS_DMA */
 
 /*
-- 
cgit 


From 6e078bc2f2406ccbb986a9922cc80ae8ca7abca3 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Mon, 28 Oct 2013 00:18:33 +0100
Subject: netfilter: bridge: fix nf_tables bridge dependencies with main core

when CONFIG_NF_TABLES[_MODULE] is not enabled,
but CONFIG_NF_TABLES_BRIDGE is enabled:

net/bridge/netfilter/nf_tables_bridge.c: In function 'nf_tables_bridge_init_net':
net/bridge/netfilter/nf_tables_bridge.c:24:5: error: 'struct net' has no member named 'nft'
net/bridge/netfilter/nf_tables_bridge.c:25:9: error: 'struct net' has no member named 'nft'
net/bridge/netfilter/nf_tables_bridge.c:28:2: error: 'struct net' has no member named 'nft'
net/bridge/netfilter/nf_tables_bridge.c:30:34: error: 'struct net' has no member named 'nft'
net/bridge/netfilter/nf_tables_bridge.c:35:11: error: 'struct net' has no member named 'nft'
net/bridge/netfilter/nf_tables_bridge.c: In function 'nf_tables_bridge_exit_net':
net/bridge/netfilter/nf_tables_bridge.c:41:27: error: 'struct net' has no member named 'nft'
net/bridge/netfilter/nf_tables_bridge.c:42:11: error: 'struct net' has no member named 'nft'

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/bridge/netfilter/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/bridge/netfilter/Kconfig b/net/bridge/netfilter/Kconfig
index 68f8128147be..5ca74a0e595f 100644
--- a/net/bridge/netfilter/Kconfig
+++ b/net/bridge/netfilter/Kconfig
@@ -3,6 +3,7 @@
 #
 #
 config NF_TABLES_BRIDGE
+	depends on NF_TABLES
 	tristate "Ethernet Bridge nf_tables support"
 
 menuconfig BRIDGE_NF_EBTABLES
-- 
cgit 


From 98c37b6b01812d331db4d49cacd603891d0d53ba Mon Sep 17 00:00:00 2001
From: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Date: Mon, 28 Oct 2013 12:19:45 +0200
Subject: netfilter: nft_nat: Fix endianness issue reported by sparse

This patch fixes this:

CHECK   net/netfilter/nft_nat.c
net/netfilter/nft_nat.c:50:43: warning: incorrect type in assignment (different base types)
net/netfilter/nft_nat.c:50:43:    expected restricted __be32 [addressable] [usertype] ip
net/netfilter/nft_nat.c:50:43:    got unsigned int [unsigned] [usertype] <noident>
net/netfilter/nft_nat.c:51:43: warning: incorrect type in assignment (different base types)
net/netfilter/nft_nat.c:51:43:    expected restricted __be32 [addressable] [usertype] ip
net/netfilter/nft_nat.c:51:43:    got unsigned int [unsigned] [usertype] <noident>
net/netfilter/nft_nat.c:65:37: warning: incorrect type in assignment (different base types)
net/netfilter/nft_nat.c:65:37:    expected restricted __be16 [addressable] [assigned] [usertype] all
net/netfilter/nft_nat.c:65:37:    got unsigned int [unsigned] <noident>
net/netfilter/nft_nat.c:66:37: warning: incorrect type in assignment (different base types)
net/netfilter/nft_nat.c:66:37:    expected restricted __be16 [addressable] [assigned] [usertype] all
net/netfilter/nft_nat.c:66:37:    got unsigned int [unsigned] <noident>

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nft_nat.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/net/netfilter/nft_nat.c b/net/netfilter/nft_nat.c
index b0b87b2d2411..d3b1ffe26181 100644
--- a/net/netfilter/nft_nat.c
+++ b/net/netfilter/nft_nat.c
@@ -47,8 +47,10 @@ static void nft_nat_eval(const struct nft_expr *expr,
 	memset(&range, 0, sizeof(range));
 	if (priv->sreg_addr_min) {
 		if (priv->family == AF_INET) {
-			range.min_addr.ip = data[priv->sreg_addr_min].data[0];
-			range.max_addr.ip = data[priv->sreg_addr_max].data[0];
+			range.min_addr.ip = (__force __be32)
+					data[priv->sreg_addr_min].data[0];
+			range.max_addr.ip = (__force __be32)
+					data[priv->sreg_addr_max].data[0];
 
 		} else {
 			memcpy(range.min_addr.ip6,
@@ -62,8 +64,10 @@ static void nft_nat_eval(const struct nft_expr *expr,
 	}
 
 	if (priv->sreg_proto_min) {
-		range.min_proto.all = data[priv->sreg_proto_min].data[0];
-		range.max_proto.all = data[priv->sreg_proto_max].data[0];
+		range.min_proto.all = (__force __be16)
+					data[priv->sreg_proto_min].data[0];
+		range.max_proto.all = (__force __be16)
+					data[priv->sreg_proto_max].data[0];
 		range.flags |= NF_NAT_RANGE_PROTO_SPECIFIED;
 	}
 
-- 
cgit 


From 46413825a7e697109028738eede2191900ec848f Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Mon, 28 Oct 2013 17:58:07 +0100
Subject: netfilter: bridge: nf_tables: add filter chain type

This patch adds the filter chain type which is required to
create filter chains in the bridge family from userspace.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/bridge/netfilter/nf_tables_bridge.c | 41 +++++++++++++++++++++++++++++++--
 1 file changed, 39 insertions(+), 2 deletions(-)

diff --git a/net/bridge/netfilter/nf_tables_bridge.c b/net/bridge/netfilter/nf_tables_bridge.c
index e8cb016fa34d..cf54b22818c8 100644
--- a/net/bridge/netfilter/nf_tables_bridge.c
+++ b/net/bridge/netfilter/nf_tables_bridge.c
@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2008 Patrick McHardy <kaber@trash.net>
+ * Copyright (c) 2013 Pablo Neira Ayuso <pablo@netfilter.org>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -47,14 +48,50 @@ static struct pernet_operations nf_tables_bridge_net_ops = {
 	.exit	= nf_tables_bridge_exit_net,
 };
 
+static unsigned int
+nft_do_chain_bridge(const struct nf_hook_ops *ops,
+		    struct sk_buff *skb,
+		    const struct net_device *in,
+		    const struct net_device *out,
+		    int (*okfn)(struct sk_buff *))
+{
+	struct nft_pktinfo pkt;
+
+	nft_set_pktinfo(&pkt, ops, skb, in, out);
+
+	return nft_do_chain_pktinfo(&pkt, ops);
+}
+
+static struct nf_chain_type filter_bridge = {
+	.family		= NFPROTO_BRIDGE,
+	.name		= "filter",
+	.type		= NFT_CHAIN_T_DEFAULT,
+	.hook_mask	= (1 << NF_BR_LOCAL_IN) |
+			  (1 << NF_BR_FORWARD) |
+			  (1 << NF_BR_LOCAL_OUT),
+	.fn		= {
+		[NF_BR_LOCAL_IN]	= nft_do_chain_bridge,
+		[NF_BR_FORWARD]		= nft_do_chain_bridge,
+		[NF_BR_LOCAL_OUT]	= nft_do_chain_bridge,
+	},
+};
+
 static int __init nf_tables_bridge_init(void)
 {
-	return register_pernet_subsys(&nf_tables_bridge_net_ops);
+	int ret;
+
+	nft_register_chain_type(&filter_bridge);
+	ret = register_pernet_subsys(&nf_tables_bridge_net_ops);
+	if (ret < 0)
+		nft_unregister_chain_type(&filter_bridge);
+
+	return ret;
 }
 
 static void __exit nf_tables_bridge_exit(void)
 {
-	return unregister_pernet_subsys(&nf_tables_bridge_net_ops);
+	unregister_pernet_subsys(&nf_tables_bridge_net_ops);
+	nft_unregister_chain_type(&filter_bridge);
 }
 
 module_init(nf_tables_bridge_init);
-- 
cgit 


From 9262e5a2253ad055d465fcf0905a5b5f160ce6f8 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Wed, 16 Oct 2013 02:36:45 -0300
Subject: [media] v4l: ti-vpe: Create a vpdma helper library

The primary function of VPDMA is to move data between external memory
and internal processing modules(in our case, VPE) that source or sink
data. VPDMA is capable of buffering this data and then delivering the
data as demanded to the modules as programmed. The modules that source
or sink data are referred to as clients or ports. A channel is setup
inside the VPDMA to connect a specific memory buffer to a specific
client. The VPDMA centralizes the DMA control functions and buffering
required to allow all the clients to minimize the effect of long latency
times.

Add the following to the VPDMA helper:

- A data struct which describe VPDMA channels. For now, these channels
  are the ones used only by VPE, the list of channels will increase when
  VIP(Video Input Port) also uses the VPDMA library. This channel
  information will be used to populate fields required by data
  descriptors.

- Data structs which describe the different data types supported by
  VPDMA. This data type information will be used to populate fields
  required by data descriptors and used by the VPE driver to map a V4L2
  format to the corresponding VPDMA data type.

- Provide VPDMA register offset definitions, functions to read, write
  and modify VPDMA registers.

- Functions to create and submit a VPDMA list. A list is a group of
  descriptors that makes up a set of DMA transfers that need to be
  completed. Each descriptor will either perform a DMA transaction to
  fetch input buffers and write to output buffers(data descriptors), or
  configure the MMRs of sub blocks of VPE(configuration descriptors), or
  provide control information to VPDMA (control descriptors).

- Functions to allocate, map and unmap buffers needed for the descriptor
  list, payloads containing MMR values and scaler coefficients. These use
  the DMA mapping APIs to ensure exclusive access to VPDMA.

- Functions to enable VPDMA interrupts. VPDMA can trigger an interrupt
  on the VPE interrupt line when a descriptor list is parsed completely
  and the DMA transactions are completed. This requires masking the events
  in VPDMA registers and configuring some top level VPE interrupt
  registers.

- Enable some VPDMA specific parameters: frame start event(when to start
  DMA for a client) and line mode(whether each line fetched should be
  mirrored or not).

- Function to load firmware required by VPDMA. VPDMA requires a firmware
  for it's internal list manager. We add the required request_firmware
  apis to fetch this firmware from user space.

- Function to dump VPDMA registers.

- A function to initialize and create a VPDMA instance, this will be
  called by the VPE driver with it's platform device pointer, this
  function will take care of loading VPDMA firmware and returning a
  vpdma_data instance back to the VPE driver. The VIP driver will also
  call the same init function to initialize it's own VPDMA instance.

Signed-off-by: Archit Taneja <archit@ti.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/ti-vpe/vpdma.c      | 578 +++++++++++++++++++++++++++++
 drivers/media/platform/ti-vpe/vpdma.h      | 155 ++++++++
 drivers/media/platform/ti-vpe/vpdma_priv.h | 119 ++++++
 3 files changed, 852 insertions(+)
 create mode 100644 drivers/media/platform/ti-vpe/vpdma.c
 create mode 100644 drivers/media/platform/ti-vpe/vpdma.h
 create mode 100644 drivers/media/platform/ti-vpe/vpdma_priv.h

diff --git a/drivers/media/platform/ti-vpe/vpdma.c b/drivers/media/platform/ti-vpe/vpdma.c
new file mode 100644
index 000000000000..42db12c373ac
--- /dev/null
+++ b/drivers/media/platform/ti-vpe/vpdma.c
@@ -0,0 +1,578 @@
+/*
+ * VPDMA helper library
+ *
+ * Copyright (c) 2013 Texas Instruments Inc.
+ *
+ * David Griego, <dagriego@biglakesoftware.com>
+ * Dale Farnsworth, <dale@farnsworth.org>
+ * Archit Taneja, <archit@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/err.h>
+#include <linux/firmware.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+
+#include "vpdma.h"
+#include "vpdma_priv.h"
+
+#define VPDMA_FIRMWARE	"vpdma-1b8.bin"
+
+const struct vpdma_data_format vpdma_yuv_fmts[] = {
+	[VPDMA_DATA_FMT_Y444] = {
+		.data_type	= DATA_TYPE_Y444,
+		.depth		= 8,
+	},
+	[VPDMA_DATA_FMT_Y422] = {
+		.data_type	= DATA_TYPE_Y422,
+		.depth		= 8,
+	},
+	[VPDMA_DATA_FMT_Y420] = {
+		.data_type	= DATA_TYPE_Y420,
+		.depth		= 8,
+	},
+	[VPDMA_DATA_FMT_C444] = {
+		.data_type	= DATA_TYPE_C444,
+		.depth		= 8,
+	},
+	[VPDMA_DATA_FMT_C422] = {
+		.data_type	= DATA_TYPE_C422,
+		.depth		= 8,
+	},
+	[VPDMA_DATA_FMT_C420] = {
+		.data_type	= DATA_TYPE_C420,
+		.depth		= 4,
+	},
+	[VPDMA_DATA_FMT_YC422] = {
+		.data_type	= DATA_TYPE_YC422,
+		.depth		= 16,
+	},
+	[VPDMA_DATA_FMT_YC444] = {
+		.data_type	= DATA_TYPE_YC444,
+		.depth		= 24,
+	},
+	[VPDMA_DATA_FMT_CY422] = {
+		.data_type	= DATA_TYPE_CY422,
+		.depth		= 16,
+	},
+};
+
+const struct vpdma_data_format vpdma_rgb_fmts[] = {
+	[VPDMA_DATA_FMT_RGB565] = {
+		.data_type	= DATA_TYPE_RGB16_565,
+		.depth		= 16,
+	},
+	[VPDMA_DATA_FMT_ARGB16_1555] = {
+		.data_type	= DATA_TYPE_ARGB_1555,
+		.depth		= 16,
+	},
+	[VPDMA_DATA_FMT_ARGB16] = {
+		.data_type	= DATA_TYPE_ARGB_4444,
+		.depth		= 16,
+	},
+	[VPDMA_DATA_FMT_RGBA16_5551] = {
+		.data_type	= DATA_TYPE_RGBA_5551,
+		.depth		= 16,
+	},
+	[VPDMA_DATA_FMT_RGBA16] = {
+		.data_type	= DATA_TYPE_RGBA_4444,
+		.depth		= 16,
+	},
+	[VPDMA_DATA_FMT_ARGB24] = {
+		.data_type	= DATA_TYPE_ARGB24_6666,
+		.depth		= 24,
+	},
+	[VPDMA_DATA_FMT_RGB24] = {
+		.data_type	= DATA_TYPE_RGB24_888,
+		.depth		= 24,
+	},
+	[VPDMA_DATA_FMT_ARGB32] = {
+		.data_type	= DATA_TYPE_ARGB32_8888,
+		.depth		= 32,
+	},
+	[VPDMA_DATA_FMT_RGBA24] = {
+		.data_type	= DATA_TYPE_RGBA24_6666,
+		.depth		= 24,
+	},
+	[VPDMA_DATA_FMT_RGBA32] = {
+		.data_type	= DATA_TYPE_RGBA32_8888,
+		.depth		= 32,
+	},
+	[VPDMA_DATA_FMT_BGR565] = {
+		.data_type	= DATA_TYPE_BGR16_565,
+		.depth		= 16,
+	},
+	[VPDMA_DATA_FMT_ABGR16_1555] = {
+		.data_type	= DATA_TYPE_ABGR_1555,
+		.depth		= 16,
+	},
+	[VPDMA_DATA_FMT_ABGR16] = {
+		.data_type	= DATA_TYPE_ABGR_4444,
+		.depth		= 16,
+	},
+	[VPDMA_DATA_FMT_BGRA16_5551] = {
+		.data_type	= DATA_TYPE_BGRA_5551,
+		.depth		= 16,
+	},
+	[VPDMA_DATA_FMT_BGRA16] = {
+		.data_type	= DATA_TYPE_BGRA_4444,
+		.depth		= 16,
+	},
+	[VPDMA_DATA_FMT_ABGR24] = {
+		.data_type	= DATA_TYPE_ABGR24_6666,
+		.depth		= 24,
+	},
+	[VPDMA_DATA_FMT_BGR24] = {
+		.data_type	= DATA_TYPE_BGR24_888,
+		.depth		= 24,
+	},
+	[VPDMA_DATA_FMT_ABGR32] = {
+		.data_type	= DATA_TYPE_ABGR32_8888,
+		.depth		= 32,
+	},
+	[VPDMA_DATA_FMT_BGRA24] = {
+		.data_type	= DATA_TYPE_BGRA24_6666,
+		.depth		= 24,
+	},
+	[VPDMA_DATA_FMT_BGRA32] = {
+		.data_type	= DATA_TYPE_BGRA32_8888,
+		.depth		= 32,
+	},
+};
+
+const struct vpdma_data_format vpdma_misc_fmts[] = {
+	[VPDMA_DATA_FMT_MV] = {
+		.data_type	= DATA_TYPE_MV,
+		.depth		= 4,
+	},
+};
+
+struct vpdma_channel_info {
+	int num;		/* VPDMA channel number */
+	int cstat_offset;	/* client CSTAT register offset */
+};
+
+static const struct vpdma_channel_info chan_info[] = {
+	[VPE_CHAN_LUMA1_IN] = {
+		.num		= VPE_CHAN_NUM_LUMA1_IN,
+		.cstat_offset	= VPDMA_DEI_LUMA1_CSTAT,
+	},
+	[VPE_CHAN_CHROMA1_IN] = {
+		.num		= VPE_CHAN_NUM_CHROMA1_IN,
+		.cstat_offset	= VPDMA_DEI_CHROMA1_CSTAT,
+	},
+	[VPE_CHAN_LUMA2_IN] = {
+		.num		= VPE_CHAN_NUM_LUMA2_IN,
+		.cstat_offset	= VPDMA_DEI_LUMA2_CSTAT,
+	},
+	[VPE_CHAN_CHROMA2_IN] = {
+		.num		= VPE_CHAN_NUM_CHROMA2_IN,
+		.cstat_offset	= VPDMA_DEI_CHROMA2_CSTAT,
+	},
+	[VPE_CHAN_LUMA3_IN] = {
+		.num		= VPE_CHAN_NUM_LUMA3_IN,
+		.cstat_offset	= VPDMA_DEI_LUMA3_CSTAT,
+	},
+	[VPE_CHAN_CHROMA3_IN] = {
+		.num		= VPE_CHAN_NUM_CHROMA3_IN,
+		.cstat_offset	= VPDMA_DEI_CHROMA3_CSTAT,
+	},
+	[VPE_CHAN_MV_IN] = {
+		.num		= VPE_CHAN_NUM_MV_IN,
+		.cstat_offset	= VPDMA_DEI_MV_IN_CSTAT,
+	},
+	[VPE_CHAN_MV_OUT] = {
+		.num		= VPE_CHAN_NUM_MV_OUT,
+		.cstat_offset	= VPDMA_DEI_MV_OUT_CSTAT,
+	},
+	[VPE_CHAN_LUMA_OUT] = {
+		.num		= VPE_CHAN_NUM_LUMA_OUT,
+		.cstat_offset	= VPDMA_VIP_UP_Y_CSTAT,
+	},
+	[VPE_CHAN_CHROMA_OUT] = {
+		.num		= VPE_CHAN_NUM_CHROMA_OUT,
+		.cstat_offset	= VPDMA_VIP_UP_UV_CSTAT,
+	},
+	[VPE_CHAN_RGB_OUT] = {
+		.num		= VPE_CHAN_NUM_RGB_OUT,
+		.cstat_offset	= VPDMA_VIP_UP_Y_CSTAT,
+	},
+};
+
+static u32 read_reg(struct vpdma_data *vpdma, int offset)
+{
+	return ioread32(vpdma->base + offset);
+}
+
+static void write_reg(struct vpdma_data *vpdma, int offset, u32 value)
+{
+	iowrite32(value, vpdma->base + offset);
+}
+
+static int read_field_reg(struct vpdma_data *vpdma, int offset,
+		u32 mask, int shift)
+{
+	return (read_reg(vpdma, offset) & (mask << shift)) >> shift;
+}
+
+static void write_field_reg(struct vpdma_data *vpdma, int offset, u32 field,
+		u32 mask, int shift)
+{
+	u32 val = read_reg(vpdma, offset);
+
+	val &= ~(mask << shift);
+	val |= (field & mask) << shift;
+
+	write_reg(vpdma, offset, val);
+}
+
+void vpdma_dump_regs(struct vpdma_data *vpdma)
+{
+	struct device *dev = &vpdma->pdev->dev;
+
+#define DUMPREG(r) dev_dbg(dev, "%-35s %08x\n", #r, read_reg(vpdma, VPDMA_##r))
+
+	dev_dbg(dev, "VPDMA Registers:\n");
+
+	DUMPREG(PID);
+	DUMPREG(LIST_ADDR);
+	DUMPREG(LIST_ATTR);
+	DUMPREG(LIST_STAT_SYNC);
+	DUMPREG(BG_RGB);
+	DUMPREG(BG_YUV);
+	DUMPREG(SETUP);
+	DUMPREG(MAX_SIZE1);
+	DUMPREG(MAX_SIZE2);
+	DUMPREG(MAX_SIZE3);
+
+	/*
+	 * dumping registers of only group0 and group3, because VPE channels
+	 * lie within group0 and group3 registers
+	 */
+	DUMPREG(INT_CHAN_STAT(0));
+	DUMPREG(INT_CHAN_MASK(0));
+	DUMPREG(INT_CHAN_STAT(3));
+	DUMPREG(INT_CHAN_MASK(3));
+	DUMPREG(INT_CLIENT0_STAT);
+	DUMPREG(INT_CLIENT0_MASK);
+	DUMPREG(INT_CLIENT1_STAT);
+	DUMPREG(INT_CLIENT1_MASK);
+	DUMPREG(INT_LIST0_STAT);
+	DUMPREG(INT_LIST0_MASK);
+
+	/*
+	 * these are registers specific to VPE clients, we can make this
+	 * function dump client registers specific to VPE or VIP based on
+	 * who is using it
+	 */
+	DUMPREG(DEI_CHROMA1_CSTAT);
+	DUMPREG(DEI_LUMA1_CSTAT);
+	DUMPREG(DEI_CHROMA2_CSTAT);
+	DUMPREG(DEI_LUMA2_CSTAT);
+	DUMPREG(DEI_CHROMA3_CSTAT);
+	DUMPREG(DEI_LUMA3_CSTAT);
+	DUMPREG(DEI_MV_IN_CSTAT);
+	DUMPREG(DEI_MV_OUT_CSTAT);
+	DUMPREG(VIP_UP_Y_CSTAT);
+	DUMPREG(VIP_UP_UV_CSTAT);
+	DUMPREG(VPI_CTL_CSTAT);
+}
+
+/*
+ * Allocate a DMA buffer
+ */
+int vpdma_alloc_desc_buf(struct vpdma_buf *buf, size_t size)
+{
+	buf->size = size;
+	buf->mapped = false;
+	buf->addr = kzalloc(size, GFP_KERNEL);
+	if (!buf->addr)
+		return -ENOMEM;
+
+	WARN_ON((u32) buf->addr & VPDMA_DESC_ALIGN);
+
+	return 0;
+}
+
+void vpdma_free_desc_buf(struct vpdma_buf *buf)
+{
+	WARN_ON(buf->mapped);
+	kfree(buf->addr);
+	buf->addr = NULL;
+	buf->size = 0;
+}
+
+/*
+ * map descriptor/payload DMA buffer, enabling DMA access
+ */
+int vpdma_map_desc_buf(struct vpdma_data *vpdma, struct vpdma_buf *buf)
+{
+	struct device *dev = &vpdma->pdev->dev;
+
+	WARN_ON(buf->mapped);
+	buf->dma_addr = dma_map_single(dev, buf->addr, buf->size,
+				DMA_TO_DEVICE);
+	if (dma_mapping_error(dev, buf->dma_addr)) {
+		dev_err(dev, "failed to map buffer\n");
+		return -EINVAL;
+	}
+
+	buf->mapped = true;
+
+	return 0;
+}
+
+/*
+ * unmap descriptor/payload DMA buffer, disabling DMA access and
+ * allowing the main processor to acces the data
+ */
+void vpdma_unmap_desc_buf(struct vpdma_data *vpdma, struct vpdma_buf *buf)
+{
+	struct device *dev = &vpdma->pdev->dev;
+
+	if (buf->mapped)
+		dma_unmap_single(dev, buf->dma_addr, buf->size, DMA_TO_DEVICE);
+
+	buf->mapped = false;
+}
+
+/*
+ * create a descriptor list, the user of this list will append configuration,
+ * control and data descriptors to this list, this list will be submitted to
+ * VPDMA. VPDMA's list parser will go through each descriptor and perform the
+ * required DMA operations
+ */
+int vpdma_create_desc_list(struct vpdma_desc_list *list, size_t size, int type)
+{
+	int r;
+
+	r = vpdma_alloc_desc_buf(&list->buf, size);
+	if (r)
+		return r;
+
+	list->next = list->buf.addr;
+
+	list->type = type;
+
+	return 0;
+}
+
+/*
+ * once a descriptor list is parsed by VPDMA, we reset the list by emptying it,
+ * to allow new descriptors to be added to the list.
+ */
+void vpdma_reset_desc_list(struct vpdma_desc_list *list)
+{
+	list->next = list->buf.addr;
+}
+
+/*
+ * free the buffer allocated fot the VPDMA descriptor list, this should be
+ * called when the user doesn't want to use VPDMA any more.
+ */
+void vpdma_free_desc_list(struct vpdma_desc_list *list)
+{
+	vpdma_free_desc_buf(&list->buf);
+
+	list->next = NULL;
+}
+
+static bool vpdma_list_busy(struct vpdma_data *vpdma, int list_num)
+{
+	return read_reg(vpdma, VPDMA_LIST_STAT_SYNC) & BIT(list_num + 16);
+}
+
+/*
+ * submit a list of DMA descriptors to the VPE VPDMA, do not wait for completion
+ */
+int vpdma_submit_descs(struct vpdma_data *vpdma, struct vpdma_desc_list *list)
+{
+	/* we always use the first list */
+	int list_num = 0;
+	int list_size;
+
+	if (vpdma_list_busy(vpdma, list_num))
+		return -EBUSY;
+
+	/* 16-byte granularity */
+	list_size = (list->next - list->buf.addr) >> 4;
+
+	write_reg(vpdma, VPDMA_LIST_ADDR, (u32) list->buf.dma_addr);
+
+	write_reg(vpdma, VPDMA_LIST_ATTR,
+			(list_num << VPDMA_LIST_NUM_SHFT) |
+			(list->type << VPDMA_LIST_TYPE_SHFT) |
+			list_size);
+
+	return 0;
+}
+
+/* set or clear the mask for list complete interrupt */
+void vpdma_enable_list_complete_irq(struct vpdma_data *vpdma, int list_num,
+		bool enable)
+{
+	u32 val;
+
+	val = read_reg(vpdma, VPDMA_INT_LIST0_MASK);
+	if (enable)
+		val |= (1 << (list_num * 2));
+	else
+		val &= ~(1 << (list_num * 2));
+	write_reg(vpdma, VPDMA_INT_LIST0_MASK, val);
+}
+
+/* clear previosuly occured list intterupts in the LIST_STAT register */
+void vpdma_clear_list_stat(struct vpdma_data *vpdma)
+{
+	write_reg(vpdma, VPDMA_INT_LIST0_STAT,
+		read_reg(vpdma, VPDMA_INT_LIST0_STAT));
+}
+
+/*
+ * configures the output mode of the line buffer for the given client, the
+ * line buffer content can either be mirrored(each line repeated twice) or
+ * passed to the client as is
+ */
+void vpdma_set_line_mode(struct vpdma_data *vpdma, int line_mode,
+		enum vpdma_channel chan)
+{
+	int client_cstat = chan_info[chan].cstat_offset;
+
+	write_field_reg(vpdma, client_cstat, line_mode,
+		VPDMA_CSTAT_LINE_MODE_MASK, VPDMA_CSTAT_LINE_MODE_SHIFT);
+}
+
+/*
+ * configures the event which should trigger VPDMA transfer for the given
+ * client
+ */
+void vpdma_set_frame_start_event(struct vpdma_data *vpdma,
+		enum vpdma_frame_start_event fs_event,
+		enum vpdma_channel chan)
+{
+	int client_cstat = chan_info[chan].cstat_offset;
+
+	write_field_reg(vpdma, client_cstat, fs_event,
+		VPDMA_CSTAT_FRAME_START_MASK, VPDMA_CSTAT_FRAME_START_SHIFT);
+}
+
+static void vpdma_firmware_cb(const struct firmware *f, void *context)
+{
+	struct vpdma_data *vpdma = context;
+	struct vpdma_buf fw_dma_buf;
+	int i, r;
+
+	dev_dbg(&vpdma->pdev->dev, "firmware callback\n");
+
+	if (!f || !f->data) {
+		dev_err(&vpdma->pdev->dev, "couldn't get firmware\n");
+		return;
+	}
+
+	/* already initialized */
+	if (read_field_reg(vpdma, VPDMA_LIST_ATTR, VPDMA_LIST_RDY_MASK,
+			VPDMA_LIST_RDY_SHFT)) {
+		vpdma->ready = true;
+		return;
+	}
+
+	r = vpdma_alloc_desc_buf(&fw_dma_buf, f->size);
+	if (r) {
+		dev_err(&vpdma->pdev->dev,
+			"failed to allocate dma buffer for firmware\n");
+		goto rel_fw;
+	}
+
+	memcpy(fw_dma_buf.addr, f->data, f->size);
+
+	vpdma_map_desc_buf(vpdma, &fw_dma_buf);
+
+	write_reg(vpdma, VPDMA_LIST_ADDR, (u32) fw_dma_buf.dma_addr);
+
+	for (i = 0; i < 100; i++) {		/* max 1 second */
+		msleep_interruptible(10);
+
+		if (read_field_reg(vpdma, VPDMA_LIST_ATTR, VPDMA_LIST_RDY_MASK,
+				VPDMA_LIST_RDY_SHFT))
+			break;
+	}
+
+	if (i == 100) {
+		dev_err(&vpdma->pdev->dev, "firmware upload failed\n");
+		goto free_buf;
+	}
+
+	vpdma->ready = true;
+
+free_buf:
+	vpdma_unmap_desc_buf(vpdma, &fw_dma_buf);
+
+	vpdma_free_desc_buf(&fw_dma_buf);
+rel_fw:
+	release_firmware(f);
+}
+
+static int vpdma_load_firmware(struct vpdma_data *vpdma)
+{
+	int r;
+	struct device *dev = &vpdma->pdev->dev;
+
+	r = request_firmware_nowait(THIS_MODULE, 1,
+		(const char *) VPDMA_FIRMWARE, dev, GFP_KERNEL, vpdma,
+		vpdma_firmware_cb);
+	if (r) {
+		dev_err(dev, "firmware not available %s\n", VPDMA_FIRMWARE);
+		return r;
+	} else {
+		dev_info(dev, "loading firmware %s\n", VPDMA_FIRMWARE);
+	}
+
+	return 0;
+}
+
+struct vpdma_data *vpdma_create(struct platform_device *pdev)
+{
+	struct resource *res;
+	struct vpdma_data *vpdma;
+	int r;
+
+	dev_dbg(&pdev->dev, "vpdma_create\n");
+
+	vpdma = devm_kzalloc(&pdev->dev, sizeof(*vpdma), GFP_KERNEL);
+	if (!vpdma) {
+		dev_err(&pdev->dev, "couldn't alloc vpdma_dev\n");
+		return ERR_PTR(-ENOMEM);
+	}
+
+	vpdma->pdev = pdev;
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "vpdma");
+	if (res == NULL) {
+		dev_err(&pdev->dev, "missing platform resources data\n");
+		return ERR_PTR(-ENODEV);
+	}
+
+	vpdma->base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
+	if (!vpdma->base) {
+		dev_err(&pdev->dev, "failed to ioremap\n");
+		return ERR_PTR(-ENOMEM);
+	}
+
+	r = vpdma_load_firmware(vpdma);
+	if (r) {
+		pr_err("failed to load firmware %s\n", VPDMA_FIRMWARE);
+		return ERR_PTR(r);
+	}
+
+	return vpdma;
+}
+MODULE_FIRMWARE(VPDMA_FIRMWARE);
diff --git a/drivers/media/platform/ti-vpe/vpdma.h b/drivers/media/platform/ti-vpe/vpdma.h
new file mode 100644
index 000000000000..80566892c6cb
--- /dev/null
+++ b/drivers/media/platform/ti-vpe/vpdma.h
@@ -0,0 +1,155 @@
+/*
+ * Copyright (c) 2013 Texas Instruments Inc.
+ *
+ * David Griego, <dagriego@biglakesoftware.com>
+ * Dale Farnsworth, <dale@farnsworth.org>
+ * Archit Taneja, <archit@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#ifndef __TI_VPDMA_H_
+#define __TI_VPDMA_H_
+
+/*
+ * A vpdma_buf tracks the size, DMA address and mapping status of each
+ * driver DMA area.
+ */
+struct vpdma_buf {
+	void			*addr;
+	dma_addr_t		dma_addr;
+	size_t			size;
+	bool			mapped;
+};
+
+struct vpdma_desc_list {
+	struct vpdma_buf buf;
+	void *next;
+	int type;
+};
+
+struct vpdma_data {
+	void __iomem		*base;
+
+	struct platform_device	*pdev;
+
+	/* tells whether vpdma firmware is loaded or not */
+	bool ready;
+};
+
+struct vpdma_data_format {
+	int data_type;
+	u8 depth;
+};
+
+#define VPDMA_DESC_ALIGN		16	/* 16-byte descriptor alignment */
+
+#define VPDMA_DTD_DESC_SIZE		32	/* 8 words */
+#define VPDMA_CFD_CTD_DESC_SIZE		16	/* 4 words */
+
+#define VPDMA_LIST_TYPE_NORMAL		0
+#define VPDMA_LIST_TYPE_SELF_MODIFYING	1
+#define VPDMA_LIST_TYPE_DOORBELL	2
+
+enum vpdma_yuv_formats {
+	VPDMA_DATA_FMT_Y444 = 0,
+	VPDMA_DATA_FMT_Y422,
+	VPDMA_DATA_FMT_Y420,
+	VPDMA_DATA_FMT_C444,
+	VPDMA_DATA_FMT_C422,
+	VPDMA_DATA_FMT_C420,
+	VPDMA_DATA_FMT_YC422,
+	VPDMA_DATA_FMT_YC444,
+	VPDMA_DATA_FMT_CY422,
+};
+
+enum vpdma_rgb_formats {
+	VPDMA_DATA_FMT_RGB565 = 0,
+	VPDMA_DATA_FMT_ARGB16_1555,
+	VPDMA_DATA_FMT_ARGB16,
+	VPDMA_DATA_FMT_RGBA16_5551,
+	VPDMA_DATA_FMT_RGBA16,
+	VPDMA_DATA_FMT_ARGB24,
+	VPDMA_DATA_FMT_RGB24,
+	VPDMA_DATA_FMT_ARGB32,
+	VPDMA_DATA_FMT_RGBA24,
+	VPDMA_DATA_FMT_RGBA32,
+	VPDMA_DATA_FMT_BGR565,
+	VPDMA_DATA_FMT_ABGR16_1555,
+	VPDMA_DATA_FMT_ABGR16,
+	VPDMA_DATA_FMT_BGRA16_5551,
+	VPDMA_DATA_FMT_BGRA16,
+	VPDMA_DATA_FMT_ABGR24,
+	VPDMA_DATA_FMT_BGR24,
+	VPDMA_DATA_FMT_ABGR32,
+	VPDMA_DATA_FMT_BGRA24,
+	VPDMA_DATA_FMT_BGRA32,
+};
+
+enum vpdma_misc_formats {
+	VPDMA_DATA_FMT_MV = 0,
+};
+
+extern const struct vpdma_data_format vpdma_yuv_fmts[];
+extern const struct vpdma_data_format vpdma_rgb_fmts[];
+extern const struct vpdma_data_format vpdma_misc_fmts[];
+
+enum vpdma_frame_start_event {
+	VPDMA_FSEVENT_HDMI_FID = 0,
+	VPDMA_FSEVENT_DVO2_FID,
+	VPDMA_FSEVENT_HDCOMP_FID,
+	VPDMA_FSEVENT_SD_FID,
+	VPDMA_FSEVENT_LM_FID0,
+	VPDMA_FSEVENT_LM_FID1,
+	VPDMA_FSEVENT_LM_FID2,
+	VPDMA_FSEVENT_CHANNEL_ACTIVE,
+};
+
+/*
+ * VPDMA channel numbers
+ */
+enum vpdma_channel {
+	VPE_CHAN_LUMA1_IN,
+	VPE_CHAN_CHROMA1_IN,
+	VPE_CHAN_LUMA2_IN,
+	VPE_CHAN_CHROMA2_IN,
+	VPE_CHAN_LUMA3_IN,
+	VPE_CHAN_CHROMA3_IN,
+	VPE_CHAN_MV_IN,
+	VPE_CHAN_MV_OUT,
+	VPE_CHAN_LUMA_OUT,
+	VPE_CHAN_CHROMA_OUT,
+	VPE_CHAN_RGB_OUT,
+};
+
+/* vpdma descriptor buffer allocation and management */
+int vpdma_alloc_desc_buf(struct vpdma_buf *buf, size_t size);
+void vpdma_free_desc_buf(struct vpdma_buf *buf);
+int vpdma_map_desc_buf(struct vpdma_data *vpdma, struct vpdma_buf *buf);
+void vpdma_unmap_desc_buf(struct vpdma_data *vpdma, struct vpdma_buf *buf);
+
+/* vpdma descriptor list funcs */
+int vpdma_create_desc_list(struct vpdma_desc_list *list, size_t size, int type);
+void vpdma_reset_desc_list(struct vpdma_desc_list *list);
+void vpdma_free_desc_list(struct vpdma_desc_list *list);
+int vpdma_submit_descs(struct vpdma_data *vpdma, struct vpdma_desc_list *list);
+
+/* vpdma list interrupt management */
+void vpdma_enable_list_complete_irq(struct vpdma_data *vpdma, int list_num,
+		bool enable);
+void vpdma_clear_list_stat(struct vpdma_data *vpdma);
+
+/* vpdma client configuration */
+void vpdma_set_line_mode(struct vpdma_data *vpdma, int line_mode,
+		enum vpdma_channel chan);
+void vpdma_set_frame_start_event(struct vpdma_data *vpdma,
+		enum vpdma_frame_start_event fs_event, enum vpdma_channel chan);
+
+void vpdma_dump_regs(struct vpdma_data *vpdma);
+
+/* initialize vpdma, passed with VPE's platform device pointer */
+struct vpdma_data *vpdma_create(struct platform_device *pdev);
+
+#endif
diff --git a/drivers/media/platform/ti-vpe/vpdma_priv.h b/drivers/media/platform/ti-vpe/vpdma_priv.h
new file mode 100644
index 000000000000..8ff51a3cfd95
--- /dev/null
+++ b/drivers/media/platform/ti-vpe/vpdma_priv.h
@@ -0,0 +1,119 @@
+/*
+ * Copyright (c) 2013 Texas Instruments Inc.
+ *
+ * David Griego, <dagriego@biglakesoftware.com>
+ * Dale Farnsworth, <dale@farnsworth.org>
+ * Archit Taneja, <archit@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#ifndef _TI_VPDMA_PRIV_H_
+#define _TI_VPDMA_PRIV_H_
+
+/*
+ * VPDMA Register offsets
+ */
+
+/* Top level */
+#define VPDMA_PID		0x00
+#define VPDMA_LIST_ADDR		0x04
+#define VPDMA_LIST_ATTR		0x08
+#define VPDMA_LIST_STAT_SYNC	0x0c
+#define VPDMA_BG_RGB		0x18
+#define VPDMA_BG_YUV		0x1c
+#define VPDMA_SETUP		0x30
+#define VPDMA_MAX_SIZE1		0x34
+#define VPDMA_MAX_SIZE2		0x38
+#define VPDMA_MAX_SIZE3		0x3c
+
+/* Interrupts */
+#define VPDMA_INT_CHAN_STAT(grp)	(0x40 + grp * 8)
+#define VPDMA_INT_CHAN_MASK(grp)	(VPDMA_INT_CHAN_STAT(grp) + 4)
+#define VPDMA_INT_CLIENT0_STAT		0x78
+#define VPDMA_INT_CLIENT0_MASK		0x7c
+#define VPDMA_INT_CLIENT1_STAT		0x80
+#define VPDMA_INT_CLIENT1_MASK		0x84
+#define VPDMA_INT_LIST0_STAT		0x88
+#define VPDMA_INT_LIST0_MASK		0x8c
+
+#define VPDMA_PERFMON(i)		(0x200 + i * 4)
+
+/* VPE specific client registers */
+#define VPDMA_DEI_CHROMA1_CSTAT		0x0300
+#define VPDMA_DEI_LUMA1_CSTAT		0x0304
+#define VPDMA_DEI_LUMA2_CSTAT		0x0308
+#define VPDMA_DEI_CHROMA2_CSTAT		0x030c
+#define VPDMA_DEI_LUMA3_CSTAT		0x0310
+#define VPDMA_DEI_CHROMA3_CSTAT		0x0314
+#define VPDMA_DEI_MV_IN_CSTAT		0x0330
+#define VPDMA_DEI_MV_OUT_CSTAT		0x033c
+#define VPDMA_VIP_UP_Y_CSTAT		0x0390
+#define VPDMA_VIP_UP_UV_CSTAT		0x0394
+#define VPDMA_VPI_CTL_CSTAT		0x03d0
+
+/* Reg field info for VPDMA_CLIENT_CSTAT registers */
+#define VPDMA_CSTAT_LINE_MODE_MASK	0x03
+#define VPDMA_CSTAT_LINE_MODE_SHIFT	8
+#define VPDMA_CSTAT_FRAME_START_MASK	0xf
+#define VPDMA_CSTAT_FRAME_START_SHIFT	10
+
+#define VPDMA_LIST_NUM_MASK		0x07
+#define VPDMA_LIST_NUM_SHFT		24
+#define VPDMA_LIST_STOP_SHFT		20
+#define VPDMA_LIST_RDY_MASK		0x01
+#define VPDMA_LIST_RDY_SHFT		19
+#define VPDMA_LIST_TYPE_MASK		0x03
+#define VPDMA_LIST_TYPE_SHFT		16
+#define VPDMA_LIST_SIZE_MASK		0xffff
+
+/* VPDMA data type values for data formats */
+#define DATA_TYPE_Y444				0x0
+#define DATA_TYPE_Y422				0x1
+#define DATA_TYPE_Y420				0x2
+#define DATA_TYPE_C444				0x4
+#define DATA_TYPE_C422				0x5
+#define DATA_TYPE_C420				0x6
+#define DATA_TYPE_YC422				0x7
+#define DATA_TYPE_YC444				0x8
+#define DATA_TYPE_CY422				0x23
+
+#define DATA_TYPE_RGB16_565			0x0
+#define DATA_TYPE_ARGB_1555			0x1
+#define DATA_TYPE_ARGB_4444			0x2
+#define DATA_TYPE_RGBA_5551			0x3
+#define DATA_TYPE_RGBA_4444			0x4
+#define DATA_TYPE_ARGB24_6666			0x5
+#define DATA_TYPE_RGB24_888			0x6
+#define DATA_TYPE_ARGB32_8888			0x7
+#define DATA_TYPE_RGBA24_6666			0x8
+#define DATA_TYPE_RGBA32_8888			0x9
+#define DATA_TYPE_BGR16_565			0x10
+#define DATA_TYPE_ABGR_1555			0x11
+#define DATA_TYPE_ABGR_4444			0x12
+#define DATA_TYPE_BGRA_5551			0x13
+#define DATA_TYPE_BGRA_4444			0x14
+#define DATA_TYPE_ABGR24_6666			0x15
+#define DATA_TYPE_BGR24_888			0x16
+#define DATA_TYPE_ABGR32_8888			0x17
+#define DATA_TYPE_BGRA24_6666			0x18
+#define DATA_TYPE_BGRA32_8888			0x19
+
+#define DATA_TYPE_MV				0x3
+
+/* VPDMA channel numbers(only VPE channels for now) */
+#define	VPE_CHAN_NUM_LUMA1_IN		0
+#define	VPE_CHAN_NUM_CHROMA1_IN		1
+#define	VPE_CHAN_NUM_LUMA2_IN		2
+#define	VPE_CHAN_NUM_CHROMA2_IN		3
+#define	VPE_CHAN_NUM_LUMA3_IN		4
+#define	VPE_CHAN_NUM_CHROMA3_IN		5
+#define	VPE_CHAN_NUM_MV_IN		12
+#define	VPE_CHAN_NUM_MV_OUT		15
+#define	VPE_CHAN_NUM_LUMA_OUT		102
+#define	VPE_CHAN_NUM_CHROMA_OUT		103
+#define	VPE_CHAN_NUM_RGB_OUT		106
+
+#endif
-- 
cgit 


From 213b8ee4001895dd60910c440f76682fb881b5cc Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Wed, 16 Oct 2013 02:36:46 -0300
Subject: [media] v4l: ti-vpe: Add helpers for creating VPDMA descriptors

Create functions which the VPE driver can use to create a VPDMA
descriptor and add it to a VPDMA descriptor list. These functions take a
pointer to an existing list, and append the configuration/data/control
descriptor header to the list.

In the case of configuration descriptors, the creation of a payload
block may be required(the payloads can hold VPE MMR values, or scaler
coefficients). The allocation of the payload buffer and it's content is
left to the VPE driver. However, the VPDMA library provides helper
macros to create payload in the correct format.

Add debug functions to dump the descriptors in a way such that it's easy
to see the values of different fields in the descriptors.

Signed-off-by: Archit Taneja <archit@ti.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/ti-vpe/vpdma.c      | 268 +++++++++++++++
 drivers/media/platform/ti-vpe/vpdma.h      |  48 +++
 drivers/media/platform/ti-vpe/vpdma_priv.h | 522 +++++++++++++++++++++++++++++
 3 files changed, 838 insertions(+)

diff --git a/drivers/media/platform/ti-vpe/vpdma.c b/drivers/media/platform/ti-vpe/vpdma.c
index 42db12c373ac..af0a5ffcaa98 100644
--- a/drivers/media/platform/ti-vpe/vpdma.c
+++ b/drivers/media/platform/ti-vpe/vpdma.c
@@ -21,6 +21,7 @@
 #include <linux/platform_device.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
+#include <linux/videodev2.h>
 
 #include "vpdma.h"
 #include "vpdma_priv.h"
@@ -416,6 +417,273 @@ int vpdma_submit_descs(struct vpdma_data *vpdma, struct vpdma_desc_list *list)
 	return 0;
 }
 
+static void dump_cfd(struct vpdma_cfd *cfd)
+{
+	int class;
+
+	class = cfd_get_class(cfd);
+
+	pr_debug("config descriptor of payload class: %s\n",
+		class == CFD_CLS_BLOCK ? "simple block" :
+		"address data block");
+
+	if (class == CFD_CLS_BLOCK)
+		pr_debug("word0: dst_addr_offset = 0x%08x\n",
+			cfd->dest_addr_offset);
+
+	if (class == CFD_CLS_BLOCK)
+		pr_debug("word1: num_data_wrds = %d\n", cfd->block_len);
+
+	pr_debug("word2: payload_addr = 0x%08x\n", cfd->payload_addr);
+
+	pr_debug("word3: pkt_type = %d, direct = %d, class = %d, dest = %d, "
+		"payload_len = %d\n", cfd_get_pkt_type(cfd),
+		cfd_get_direct(cfd), class, cfd_get_dest(cfd),
+		cfd_get_payload_len(cfd));
+}
+
+/*
+ * append a configuration descriptor to the given descriptor list, where the
+ * payload is in the form of a simple data block specified in the descriptor
+ * header, this is used to upload scaler coefficients to the scaler module
+ */
+void vpdma_add_cfd_block(struct vpdma_desc_list *list, int client,
+		struct vpdma_buf *blk, u32 dest_offset)
+{
+	struct vpdma_cfd *cfd;
+	int len = blk->size;
+
+	WARN_ON(blk->dma_addr & VPDMA_DESC_ALIGN);
+
+	cfd = list->next;
+	WARN_ON((void *)(cfd + 1) > (list->buf.addr + list->buf.size));
+
+	cfd->dest_addr_offset = dest_offset;
+	cfd->block_len = len;
+	cfd->payload_addr = (u32) blk->dma_addr;
+	cfd->ctl_payload_len = cfd_pkt_payload_len(CFD_INDIRECT, CFD_CLS_BLOCK,
+				client, len >> 4);
+
+	list->next = cfd + 1;
+
+	dump_cfd(cfd);
+}
+
+/*
+ * append a configuration descriptor to the given descriptor list, where the
+ * payload is in the address data block format, this is used to a configure a
+ * discontiguous set of MMRs
+ */
+void vpdma_add_cfd_adb(struct vpdma_desc_list *list, int client,
+		struct vpdma_buf *adb)
+{
+	struct vpdma_cfd *cfd;
+	unsigned int len = adb->size;
+
+	WARN_ON(len & VPDMA_ADB_SIZE_ALIGN);
+	WARN_ON(adb->dma_addr & VPDMA_DESC_ALIGN);
+
+	cfd = list->next;
+	BUG_ON((void *)(cfd + 1) > (list->buf.addr + list->buf.size));
+
+	cfd->w0 = 0;
+	cfd->w1 = 0;
+	cfd->payload_addr = (u32) adb->dma_addr;
+	cfd->ctl_payload_len = cfd_pkt_payload_len(CFD_INDIRECT, CFD_CLS_ADB,
+				client, len >> 4);
+
+	list->next = cfd + 1;
+
+	dump_cfd(cfd);
+};
+
+/*
+ * control descriptor format change based on what type of control descriptor it
+ * is, we only use 'sync on channel' control descriptors for now, so assume it's
+ * that
+ */
+static void dump_ctd(struct vpdma_ctd *ctd)
+{
+	pr_debug("control descriptor\n");
+
+	pr_debug("word3: pkt_type = %d, source = %d, ctl_type = %d\n",
+		ctd_get_pkt_type(ctd), ctd_get_source(ctd), ctd_get_ctl(ctd));
+}
+
+/*
+ * append a 'sync on channel' type control descriptor to the given descriptor
+ * list, this descriptor stalls the VPDMA list till the time DMA is completed
+ * on the specified channel
+ */
+void vpdma_add_sync_on_channel_ctd(struct vpdma_desc_list *list,
+		enum vpdma_channel chan)
+{
+	struct vpdma_ctd *ctd;
+
+	ctd = list->next;
+	WARN_ON((void *)(ctd + 1) > (list->buf.addr + list->buf.size));
+
+	ctd->w0 = 0;
+	ctd->w1 = 0;
+	ctd->w2 = 0;
+	ctd->type_source_ctl = ctd_type_source_ctl(chan_info[chan].num,
+				CTD_TYPE_SYNC_ON_CHANNEL);
+
+	list->next = ctd + 1;
+
+	dump_ctd(ctd);
+}
+
+static void dump_dtd(struct vpdma_dtd *dtd)
+{
+	int dir, chan;
+
+	dir = dtd_get_dir(dtd);
+	chan = dtd_get_chan(dtd);
+
+	pr_debug("%s data transfer descriptor for channel %d\n",
+		dir == DTD_DIR_OUT ? "outbound" : "inbound", chan);
+
+	pr_debug("word0: data_type = %d, notify = %d, field = %d, 1D = %d, "
+		"even_ln_skp = %d, odd_ln_skp = %d, line_stride = %d\n",
+		dtd_get_data_type(dtd), dtd_get_notify(dtd), dtd_get_field(dtd),
+		dtd_get_1d(dtd), dtd_get_even_line_skip(dtd),
+		dtd_get_odd_line_skip(dtd), dtd_get_line_stride(dtd));
+
+	if (dir == DTD_DIR_IN)
+		pr_debug("word1: line_length = %d, xfer_height = %d\n",
+			dtd_get_line_length(dtd), dtd_get_xfer_height(dtd));
+
+	pr_debug("word2: start_addr = 0x%08x\n", dtd->start_addr);
+
+	pr_debug("word3: pkt_type = %d, mode = %d, dir = %d, chan = %d, "
+		"pri = %d, next_chan = %d\n", dtd_get_pkt_type(dtd),
+		dtd_get_mode(dtd), dir, chan, dtd_get_priority(dtd),
+		dtd_get_next_chan(dtd));
+
+	if (dir == DTD_DIR_IN)
+		pr_debug("word4: frame_width = %d, frame_height = %d\n",
+			dtd_get_frame_width(dtd), dtd_get_frame_height(dtd));
+	else
+		pr_debug("word4: desc_write_addr = 0x%08x, write_desc = %d, "
+			"drp_data = %d, use_desc_reg = %d\n",
+			dtd_get_desc_write_addr(dtd), dtd_get_write_desc(dtd),
+			dtd_get_drop_data(dtd), dtd_get_use_desc(dtd));
+
+	if (dir == DTD_DIR_IN)
+		pr_debug("word5: hor_start = %d, ver_start = %d\n",
+			dtd_get_h_start(dtd), dtd_get_v_start(dtd));
+	else
+		pr_debug("word5: max_width %d, max_height %d\n",
+			dtd_get_max_width(dtd), dtd_get_max_height(dtd));
+
+	pr_debug("word6: client specfic attr0 = 0x%08x\n", dtd->client_attr0);
+	pr_debug("word7: client specfic attr1 = 0x%08x\n", dtd->client_attr1);
+}
+
+/*
+ * append an outbound data transfer descriptor to the given descriptor list,
+ * this sets up a 'client to memory' VPDMA transfer for the given VPDMA channel
+ */
+void vpdma_add_out_dtd(struct vpdma_desc_list *list, struct v4l2_rect *c_rect,
+		const struct vpdma_data_format *fmt, dma_addr_t dma_addr,
+		enum vpdma_channel chan, u32 flags)
+{
+	int priority = 0;
+	int field = 0;
+	int notify = 1;
+	int channel, next_chan;
+	int depth = fmt->depth;
+	int stride;
+	struct vpdma_dtd *dtd;
+
+	channel = next_chan = chan_info[chan].num;
+
+	if (fmt->data_type == DATA_TYPE_C420)
+		depth = 8;
+
+	stride = (depth * c_rect->width) >> 3;
+	dma_addr += (c_rect->left * depth) >> 3;
+
+	dtd = list->next;
+	WARN_ON((void *)(dtd + 1) > (list->buf.addr + list->buf.size));
+
+	dtd->type_ctl_stride = dtd_type_ctl_stride(fmt->data_type,
+					notify,
+					field,
+					!!(flags & VPDMA_DATA_FRAME_1D),
+					!!(flags & VPDMA_DATA_EVEN_LINE_SKIP),
+					!!(flags & VPDMA_DATA_ODD_LINE_SKIP),
+					stride);
+	dtd->w1 = 0;
+	dtd->start_addr = (u32) dma_addr;
+	dtd->pkt_ctl = dtd_pkt_ctl(!!(flags & VPDMA_DATA_MODE_TILED),
+				DTD_DIR_OUT, channel, priority, next_chan);
+	dtd->desc_write_addr = dtd_desc_write_addr(0, 0, 0, 0);
+	dtd->max_width_height = dtd_max_width_height(MAX_OUT_WIDTH_1920,
+					MAX_OUT_HEIGHT_1080);
+	dtd->client_attr0 = 0;
+	dtd->client_attr1 = 0;
+
+	list->next = dtd + 1;
+
+	dump_dtd(dtd);
+}
+
+/*
+ * append an inbound data transfer descriptor to the given descriptor list,
+ * this sets up a 'memory to client' VPDMA transfer for the given VPDMA channel
+ */
+void vpdma_add_in_dtd(struct vpdma_desc_list *list, int frame_width,
+		int frame_height, struct v4l2_rect *c_rect,
+		const struct vpdma_data_format *fmt, dma_addr_t dma_addr,
+		enum vpdma_channel chan, int field, u32 flags)
+{
+	int priority = 0;
+	int notify = 1;
+	int depth = fmt->depth;
+	int channel, next_chan;
+	int stride;
+	int height = c_rect->height;
+	struct vpdma_dtd *dtd;
+
+	channel = next_chan = chan_info[chan].num;
+
+	if (fmt->data_type == DATA_TYPE_C420) {
+		height >>= 1;
+		frame_height >>= 1;
+		depth = 8;
+	}
+
+	stride = (depth * c_rect->width) >> 3;
+	dma_addr += (c_rect->left * depth) >> 3;
+
+	dtd = list->next;
+	WARN_ON((void *)(dtd + 1) > (list->buf.addr + list->buf.size));
+
+	dtd->type_ctl_stride = dtd_type_ctl_stride(fmt->data_type,
+					notify,
+					field,
+					!!(flags & VPDMA_DATA_FRAME_1D),
+					!!(flags & VPDMA_DATA_EVEN_LINE_SKIP),
+					!!(flags & VPDMA_DATA_ODD_LINE_SKIP),
+					stride);
+
+	dtd->xfer_length_height = dtd_xfer_length_height(c_rect->width, height);
+	dtd->start_addr = (u32) dma_addr;
+	dtd->pkt_ctl = dtd_pkt_ctl(!!(flags & VPDMA_DATA_MODE_TILED),
+				DTD_DIR_IN, channel, priority, next_chan);
+	dtd->frame_width_height = dtd_frame_width_height(frame_width,
+					frame_height);
+	dtd->start_h_v = dtd_start_h_v(c_rect->left, c_rect->top);
+	dtd->client_attr0 = 0;
+	dtd->client_attr1 = 0;
+
+	list->next = dtd + 1;
+
+	dump_dtd(dtd);
+}
+
 /* set or clear the mask for list complete interrupt */
 void vpdma_enable_list_complete_irq(struct vpdma_data *vpdma, int list_num,
 		bool enable)
diff --git a/drivers/media/platform/ti-vpe/vpdma.h b/drivers/media/platform/ti-vpe/vpdma.h
index 80566892c6cb..eaa2a71a5db9 100644
--- a/drivers/media/platform/ti-vpe/vpdma.h
+++ b/drivers/media/platform/ti-vpe/vpdma.h
@@ -124,6 +124,39 @@ enum vpdma_channel {
 	VPE_CHAN_RGB_OUT,
 };
 
+/* flags for VPDMA data descriptors */
+#define VPDMA_DATA_ODD_LINE_SKIP	(1 << 0)
+#define VPDMA_DATA_EVEN_LINE_SKIP	(1 << 1)
+#define VPDMA_DATA_FRAME_1D		(1 << 2)
+#define VPDMA_DATA_MODE_TILED		(1 << 3)
+
+/*
+ * client identifiers used for configuration descriptors
+ */
+#define CFD_MMR_CLIENT		0
+#define CFD_SC_CLIENT		4
+
+/* Address data block header format */
+struct vpdma_adb_hdr {
+	u32			offset;
+	u32			nwords;
+	u32			reserved0;
+	u32			reserved1;
+};
+
+/* helpers for creating ADB headers for config descriptors MMRs as client */
+#define ADB_ADDR(dma_buf, str, fld)	((dma_buf)->addr + offsetof(str, fld))
+#define MMR_ADB_ADDR(buf, str, fld)	ADB_ADDR(&(buf), struct str, fld)
+
+#define VPDMA_SET_MMR_ADB_HDR(buf, str, hdr, regs, offset_a)	\
+	do {							\
+		struct vpdma_adb_hdr *h;			\
+		struct str *adb = NULL;				\
+		h = MMR_ADB_ADDR(buf, str, hdr);		\
+		h->offset = (offset_a);				\
+		h->nwords = sizeof(adb->regs) >> 2;		\
+	} while (0)
+
 /* vpdma descriptor buffer allocation and management */
 int vpdma_alloc_desc_buf(struct vpdma_buf *buf, size_t size);
 void vpdma_free_desc_buf(struct vpdma_buf *buf);
@@ -136,6 +169,21 @@ void vpdma_reset_desc_list(struct vpdma_desc_list *list);
 void vpdma_free_desc_list(struct vpdma_desc_list *list);
 int vpdma_submit_descs(struct vpdma_data *vpdma, struct vpdma_desc_list *list);
 
+/* helpers for creating vpdma descriptors */
+void vpdma_add_cfd_block(struct vpdma_desc_list *list, int client,
+		struct vpdma_buf *blk, u32 dest_offset);
+void vpdma_add_cfd_adb(struct vpdma_desc_list *list, int client,
+		struct vpdma_buf *adb);
+void vpdma_add_sync_on_channel_ctd(struct vpdma_desc_list *list,
+		enum vpdma_channel chan);
+void vpdma_add_out_dtd(struct vpdma_desc_list *list, struct v4l2_rect *c_rect,
+		const struct vpdma_data_format *fmt, dma_addr_t dma_addr,
+		enum vpdma_channel chan, u32 flags);
+void vpdma_add_in_dtd(struct vpdma_desc_list *list, int frame_width,
+		int frame_height, struct v4l2_rect *c_rect,
+		const struct vpdma_data_format *fmt, dma_addr_t dma_addr,
+		enum vpdma_channel chan, int field, u32 flags);
+
 /* vpdma list interrupt management */
 void vpdma_enable_list_complete_irq(struct vpdma_data *vpdma, int list_num,
 		bool enable);
diff --git a/drivers/media/platform/ti-vpe/vpdma_priv.h b/drivers/media/platform/ti-vpe/vpdma_priv.h
index 8ff51a3cfd95..f0e9a8038c1b 100644
--- a/drivers/media/platform/ti-vpe/vpdma_priv.h
+++ b/drivers/media/platform/ti-vpe/vpdma_priv.h
@@ -116,4 +116,526 @@
 #define	VPE_CHAN_NUM_CHROMA_OUT		103
 #define	VPE_CHAN_NUM_RGB_OUT		106
 
+/*
+ * a VPDMA address data block payload for a configuration descriptor needs to
+ * have each sub block length as a multiple of 16 bytes. Therefore, the overall
+ * size of the payload also needs to be a multiple of 16 bytes. The sub block
+ * lengths should be ensured to be aligned by the VPDMA user.
+ */
+#define VPDMA_ADB_SIZE_ALIGN		0x0f
+
+/*
+ * data transfer descriptor
+ */
+struct vpdma_dtd {
+	u32			type_ctl_stride;
+	union {
+		u32		xfer_length_height;
+		u32		w1;
+	};
+	dma_addr_t		start_addr;
+	u32			pkt_ctl;
+	union {
+		u32		frame_width_height;	/* inbound */
+		dma_addr_t	desc_write_addr;	/* outbound */
+	};
+	union {
+		u32		start_h_v;		/* inbound */
+		u32		max_width_height;	/* outbound */
+	};
+	u32			client_attr0;
+	u32			client_attr1;
+};
+
+/* Data Transfer Descriptor specifics */
+#define DTD_NO_NOTIFY		0
+#define DTD_NOTIFY		1
+
+#define DTD_PKT_TYPE		0xa
+#define DTD_DIR_IN		0
+#define DTD_DIR_OUT		1
+
+/* type_ctl_stride */
+#define DTD_DATA_TYPE_MASK	0x3f
+#define DTD_DATA_TYPE_SHFT	26
+#define DTD_NOTIFY_MASK		0x01
+#define DTD_NOTIFY_SHFT		25
+#define DTD_FIELD_MASK		0x01
+#define DTD_FIELD_SHFT		24
+#define DTD_1D_MASK		0x01
+#define DTD_1D_SHFT		23
+#define DTD_EVEN_LINE_SKIP_MASK	0x01
+#define DTD_EVEN_LINE_SKIP_SHFT	20
+#define DTD_ODD_LINE_SKIP_MASK	0x01
+#define DTD_ODD_LINE_SKIP_SHFT	16
+#define DTD_LINE_STRIDE_MASK	0xffff
+#define DTD_LINE_STRIDE_SHFT	0
+
+/* xfer_length_height */
+#define DTD_LINE_LENGTH_MASK	0xffff
+#define DTD_LINE_LENGTH_SHFT	16
+#define DTD_XFER_HEIGHT_MASK	0xffff
+#define DTD_XFER_HEIGHT_SHFT	0
+
+/* pkt_ctl */
+#define DTD_PKT_TYPE_MASK	0x1f
+#define DTD_PKT_TYPE_SHFT	27
+#define DTD_MODE_MASK		0x01
+#define DTD_MODE_SHFT		26
+#define DTD_DIR_MASK		0x01
+#define DTD_DIR_SHFT		25
+#define DTD_CHAN_MASK		0x01ff
+#define DTD_CHAN_SHFT		16
+#define DTD_PRI_MASK		0x0f
+#define DTD_PRI_SHFT		9
+#define DTD_NEXT_CHAN_MASK	0x01ff
+#define DTD_NEXT_CHAN_SHFT	0
+
+/* frame_width_height */
+#define DTD_FRAME_WIDTH_MASK	0xffff
+#define DTD_FRAME_WIDTH_SHFT	16
+#define DTD_FRAME_HEIGHT_MASK	0xffff
+#define DTD_FRAME_HEIGHT_SHFT	0
+
+/* start_h_v */
+#define DTD_H_START_MASK	0xffff
+#define DTD_H_START_SHFT	16
+#define DTD_V_START_MASK	0xffff
+#define DTD_V_START_SHFT	0
+
+#define DTD_DESC_START_SHIFT	5
+#define DTD_WRITE_DESC_MASK	0x01
+#define DTD_WRITE_DESC_SHIFT	2
+#define DTD_DROP_DATA_MASK	0x01
+#define DTD_DROP_DATA_SHIFT	1
+#define DTD_USE_DESC_MASK	0x01
+#define DTD_USE_DESC_SHIFT	0
+
+/* max_width_height */
+#define DTD_MAX_WIDTH_MASK	0x07
+#define DTD_MAX_WIDTH_SHFT	4
+#define DTD_MAX_HEIGHT_MASK	0x07
+#define DTD_MAX_HEIGHT_SHFT	0
+
+/* max width configurations */
+ /* unlimited width */
+#define	MAX_OUT_WIDTH_UNLIMITED		0
+/* as specified in max_size1 reg */
+#define MAX_OUT_WIDTH_REG1		1
+/* as specified in max_size2 reg */
+#define MAX_OUT_WIDTH_REG2		2
+/* as specified in max_size3 reg */
+#define	MAX_OUT_WIDTH_REG3		3
+/* maximum of 352 pixels as width */
+#define MAX_OUT_WIDTH_352		4
+/* maximum of 768 pixels as width */
+#define	MAX_OUT_WIDTH_768		5
+/* maximum of 1280 pixels width */
+#define	MAX_OUT_WIDTH_1280		6
+/* maximum of 1920 pixels as width */
+#define	MAX_OUT_WIDTH_1920		7
+
+/* max height configurations */
+ /* unlimited height */
+#define	MAX_OUT_HEIGHT_UNLIMITED	0
+/* as specified in max_size1 reg */
+#define MAX_OUT_HEIGHT_REG1		1
+/* as specified in max_size2 reg */
+#define MAX_OUT_HEIGHT_REG2		2
+/* as specified in max_size3 reg */
+#define	MAX_OUT_HEIGHT_REG3		3
+/* maximum of 288 lines as height */
+#define MAX_OUT_HEIGHT_288		4
+/* maximum of 576 lines as height */
+#define	MAX_OUT_HEIGHT_576		5
+/* maximum of 720 lines as height */
+#define	MAX_OUT_HEIGHT_720		6
+/* maximum of 1080 lines as height */
+#define	MAX_OUT_HEIGHT_1080		7
+
+static inline u32 dtd_type_ctl_stride(int type, bool notify, int field,
+			bool one_d, bool even_line_skip, bool odd_line_skip,
+			int line_stride)
+{
+	return (type << DTD_DATA_TYPE_SHFT) | (notify << DTD_NOTIFY_SHFT) |
+		(field << DTD_FIELD_SHFT) | (one_d << DTD_1D_SHFT) |
+		(even_line_skip << DTD_EVEN_LINE_SKIP_SHFT) |
+		(odd_line_skip << DTD_ODD_LINE_SKIP_SHFT) |
+		line_stride;
+}
+
+static inline u32 dtd_xfer_length_height(int line_length, int xfer_height)
+{
+	return (line_length << DTD_LINE_LENGTH_SHFT) | xfer_height;
+}
+
+static inline u32 dtd_pkt_ctl(bool mode, bool dir, int chan, int pri,
+			int next_chan)
+{
+	return (DTD_PKT_TYPE << DTD_PKT_TYPE_SHFT) | (mode << DTD_MODE_SHFT) |
+		(dir << DTD_DIR_SHFT) | (chan << DTD_CHAN_SHFT) |
+		(pri << DTD_PRI_SHFT) | next_chan;
+}
+
+static inline u32 dtd_frame_width_height(int width, int height)
+{
+	return (width << DTD_FRAME_WIDTH_SHFT) | height;
+}
+
+static inline u32 dtd_desc_write_addr(unsigned int addr, bool write_desc,
+			bool drop_data, bool use_desc)
+{
+	return (addr << DTD_DESC_START_SHIFT) |
+		(write_desc << DTD_WRITE_DESC_SHIFT) |
+		(drop_data << DTD_DROP_DATA_SHIFT) |
+		use_desc;
+}
+
+static inline u32 dtd_start_h_v(int h_start, int v_start)
+{
+	return (h_start << DTD_H_START_SHFT) | v_start;
+}
+
+static inline u32 dtd_max_width_height(int max_width, int max_height)
+{
+	return (max_width << DTD_MAX_WIDTH_SHFT) | max_height;
+}
+
+static inline int dtd_get_data_type(struct vpdma_dtd *dtd)
+{
+	return dtd->type_ctl_stride >> DTD_DATA_TYPE_SHFT;
+}
+
+static inline bool dtd_get_notify(struct vpdma_dtd *dtd)
+{
+	return (dtd->type_ctl_stride >> DTD_NOTIFY_SHFT) & DTD_NOTIFY_MASK;
+}
+
+static inline int dtd_get_field(struct vpdma_dtd *dtd)
+{
+	return (dtd->type_ctl_stride >> DTD_FIELD_SHFT) & DTD_FIELD_MASK;
+}
+
+static inline bool dtd_get_1d(struct vpdma_dtd *dtd)
+{
+	return (dtd->type_ctl_stride >> DTD_1D_SHFT) & DTD_1D_MASK;
+}
+
+static inline bool dtd_get_even_line_skip(struct vpdma_dtd *dtd)
+{
+	return (dtd->type_ctl_stride >> DTD_EVEN_LINE_SKIP_SHFT)
+		& DTD_EVEN_LINE_SKIP_MASK;
+}
+
+static inline bool dtd_get_odd_line_skip(struct vpdma_dtd *dtd)
+{
+	return (dtd->type_ctl_stride >> DTD_ODD_LINE_SKIP_SHFT)
+		& DTD_ODD_LINE_SKIP_MASK;
+}
+
+static inline int dtd_get_line_stride(struct vpdma_dtd *dtd)
+{
+	return dtd->type_ctl_stride & DTD_LINE_STRIDE_MASK;
+}
+
+static inline int dtd_get_line_length(struct vpdma_dtd *dtd)
+{
+	return dtd->xfer_length_height >> DTD_LINE_LENGTH_SHFT;
+}
+
+static inline int dtd_get_xfer_height(struct vpdma_dtd *dtd)
+{
+	return dtd->xfer_length_height & DTD_XFER_HEIGHT_MASK;
+}
+
+static inline int dtd_get_pkt_type(struct vpdma_dtd *dtd)
+{
+	return dtd->pkt_ctl >> DTD_PKT_TYPE_SHFT;
+}
+
+static inline bool dtd_get_mode(struct vpdma_dtd *dtd)
+{
+	return (dtd->pkt_ctl >> DTD_MODE_SHFT) & DTD_MODE_MASK;
+}
+
+static inline bool dtd_get_dir(struct vpdma_dtd *dtd)
+{
+	return (dtd->pkt_ctl >> DTD_DIR_SHFT) & DTD_DIR_MASK;
+}
+
+static inline int dtd_get_chan(struct vpdma_dtd *dtd)
+{
+	return (dtd->pkt_ctl >> DTD_CHAN_SHFT) & DTD_CHAN_MASK;
+}
+
+static inline int dtd_get_priority(struct vpdma_dtd *dtd)
+{
+	return (dtd->pkt_ctl >> DTD_PRI_SHFT) & DTD_PRI_MASK;
+}
+
+static inline int dtd_get_next_chan(struct vpdma_dtd *dtd)
+{
+	return (dtd->pkt_ctl >> DTD_NEXT_CHAN_SHFT) & DTD_NEXT_CHAN_MASK;
+}
+
+static inline int dtd_get_frame_width(struct vpdma_dtd *dtd)
+{
+	return dtd->frame_width_height >> DTD_FRAME_WIDTH_SHFT;
+}
+
+static inline int dtd_get_frame_height(struct vpdma_dtd *dtd)
+{
+	return dtd->frame_width_height & DTD_FRAME_HEIGHT_MASK;
+}
+
+static inline int dtd_get_desc_write_addr(struct vpdma_dtd *dtd)
+{
+	return dtd->desc_write_addr >> DTD_DESC_START_SHIFT;
+}
+
+static inline bool dtd_get_write_desc(struct vpdma_dtd *dtd)
+{
+	return (dtd->desc_write_addr >> DTD_WRITE_DESC_SHIFT) &
+							DTD_WRITE_DESC_MASK;
+}
+
+static inline bool dtd_get_drop_data(struct vpdma_dtd *dtd)
+{
+	return (dtd->desc_write_addr >> DTD_DROP_DATA_SHIFT) &
+							DTD_DROP_DATA_MASK;
+}
+
+static inline bool dtd_get_use_desc(struct vpdma_dtd *dtd)
+{
+	return dtd->desc_write_addr & DTD_USE_DESC_MASK;
+}
+
+static inline int dtd_get_h_start(struct vpdma_dtd *dtd)
+{
+	return dtd->start_h_v >> DTD_H_START_SHFT;
+}
+
+static inline int dtd_get_v_start(struct vpdma_dtd *dtd)
+{
+	return dtd->start_h_v & DTD_V_START_MASK;
+}
+
+static inline int dtd_get_max_width(struct vpdma_dtd *dtd)
+{
+	return (dtd->max_width_height >> DTD_MAX_WIDTH_SHFT) &
+							DTD_MAX_WIDTH_MASK;
+}
+
+static inline int dtd_get_max_height(struct vpdma_dtd *dtd)
+{
+	return (dtd->max_width_height >> DTD_MAX_HEIGHT_SHFT) &
+							DTD_MAX_HEIGHT_MASK;
+}
+
+/*
+ * configuration descriptor
+ */
+struct vpdma_cfd {
+	union {
+		u32	dest_addr_offset;
+		u32	w0;
+	};
+	union {
+		u32	block_len;		/* in words */
+		u32	w1;
+	};
+	u32		payload_addr;
+	u32		ctl_payload_len;	/* in words */
+};
+
+/* Configuration descriptor specifics */
+
+#define CFD_PKT_TYPE		0xb
+
+#define CFD_DIRECT		1
+#define CFD_INDIRECT		0
+#define CFD_CLS_ADB		0
+#define CFD_CLS_BLOCK		1
+
+/* block_len */
+#define CFD__BLOCK_LEN_MASK	0xffff
+#define CFD__BLOCK_LEN_SHFT	0
+
+/* ctl_payload_len */
+#define CFD_PKT_TYPE_MASK	0x1f
+#define CFD_PKT_TYPE_SHFT	27
+#define CFD_DIRECT_MASK		0x01
+#define CFD_DIRECT_SHFT		26
+#define CFD_CLASS_MASK		0x03
+#define CFD_CLASS_SHFT		24
+#define CFD_DEST_MASK		0xff
+#define CFD_DEST_SHFT		16
+#define CFD_PAYLOAD_LEN_MASK	0xffff
+#define CFD_PAYLOAD_LEN_SHFT	0
+
+static inline u32 cfd_pkt_payload_len(bool direct, int cls, int dest,
+		int payload_len)
+{
+	return (CFD_PKT_TYPE << CFD_PKT_TYPE_SHFT) |
+		(direct << CFD_DIRECT_SHFT) |
+		(cls << CFD_CLASS_SHFT) |
+		(dest << CFD_DEST_SHFT) |
+		payload_len;
+}
+
+static inline int cfd_get_pkt_type(struct vpdma_cfd *cfd)
+{
+	return cfd->ctl_payload_len >> CFD_PKT_TYPE_SHFT;
+}
+
+static inline bool cfd_get_direct(struct vpdma_cfd *cfd)
+{
+	return (cfd->ctl_payload_len >> CFD_DIRECT_SHFT) & CFD_DIRECT_MASK;
+}
+
+static inline bool cfd_get_class(struct vpdma_cfd *cfd)
+{
+	return (cfd->ctl_payload_len >> CFD_CLASS_SHFT) & CFD_CLASS_MASK;
+}
+
+static inline int cfd_get_dest(struct vpdma_cfd *cfd)
+{
+	return (cfd->ctl_payload_len >> CFD_DEST_SHFT) & CFD_DEST_MASK;
+}
+
+static inline int cfd_get_payload_len(struct vpdma_cfd *cfd)
+{
+	return cfd->ctl_payload_len & CFD_PAYLOAD_LEN_MASK;
+}
+
+/*
+ * control descriptor
+ */
+struct vpdma_ctd {
+	union {
+		u32	timer_value;
+		u32	list_addr;
+		u32	w0;
+	};
+	union {
+		u32	pixel_line_count;
+		u32	list_size;
+		u32	w1;
+	};
+	union {
+		u32	event;
+		u32	fid_ctl;
+		u32	w2;
+	};
+	u32		type_source_ctl;
+};
+
+/* control descriptor types */
+#define CTD_TYPE_SYNC_ON_CLIENT		0
+#define CTD_TYPE_SYNC_ON_LIST		1
+#define CTD_TYPE_SYNC_ON_EXT		2
+#define CTD_TYPE_SYNC_ON_LM_TIMER	3
+#define CTD_TYPE_SYNC_ON_CHANNEL	4
+#define CTD_TYPE_CHNG_CLIENT_IRQ	5
+#define CTD_TYPE_SEND_IRQ		6
+#define CTD_TYPE_RELOAD_LIST		7
+#define CTD_TYPE_ABORT_CHANNEL		8
+
+#define CTD_PKT_TYPE		0xc
+
+/* timer_value */
+#define CTD_TIMER_VALUE_MASK	0xffff
+#define CTD_TIMER_VALUE_SHFT	0
+
+/* pixel_line_count */
+#define CTD_PIXEL_COUNT_MASK	0xffff
+#define CTD_PIXEL_COUNT_SHFT	16
+#define CTD_LINE_COUNT_MASK	0xffff
+#define CTD_LINE_COUNT_SHFT	0
+
+/* list_size */
+#define CTD_LIST_SIZE_MASK	0xffff
+#define CTD_LIST_SIZE_SHFT	0
+
+/* event */
+#define CTD_EVENT_MASK		0x0f
+#define CTD_EVENT_SHFT		0
+
+/* fid_ctl */
+#define CTD_FID2_MASK		0x03
+#define CTD_FID2_SHFT		4
+#define CTD_FID1_MASK		0x03
+#define CTD_FID1_SHFT		2
+#define CTD_FID0_MASK		0x03
+#define CTD_FID0_SHFT		0
+
+/* type_source_ctl */
+#define CTD_PKT_TYPE_MASK	0x1f
+#define CTD_PKT_TYPE_SHFT	27
+#define CTD_SOURCE_MASK		0xff
+#define CTD_SOURCE_SHFT		16
+#define CTD_CONTROL_MASK	0x0f
+#define CTD_CONTROL_SHFT	0
+
+static inline u32 ctd_pixel_line_count(int pixel_count, int line_count)
+{
+	return (pixel_count << CTD_PIXEL_COUNT_SHFT) | line_count;
+}
+
+static inline u32 ctd_set_fid_ctl(int fid0, int fid1, int fid2)
+{
+	return (fid2 << CTD_FID2_SHFT) | (fid1 << CTD_FID1_SHFT) | fid0;
+}
+
+static inline u32 ctd_type_source_ctl(int source, int control)
+{
+	return (CTD_PKT_TYPE << CTD_PKT_TYPE_SHFT) |
+		(source << CTD_SOURCE_SHFT) | control;
+}
+
+static inline u32 ctd_get_pixel_count(struct vpdma_ctd *ctd)
+{
+	return ctd->pixel_line_count >> CTD_PIXEL_COUNT_SHFT;
+}
+
+static inline int ctd_get_line_count(struct vpdma_ctd *ctd)
+{
+	return ctd->pixel_line_count & CTD_LINE_COUNT_MASK;
+}
+
+static inline int ctd_get_event(struct vpdma_ctd *ctd)
+{
+	return ctd->event & CTD_EVENT_MASK;
+}
+
+static inline int ctd_get_fid2_ctl(struct vpdma_ctd *ctd)
+{
+	return (ctd->fid_ctl >> CTD_FID2_SHFT) & CTD_FID2_MASK;
+}
+
+static inline int ctd_get_fid1_ctl(struct vpdma_ctd *ctd)
+{
+	return (ctd->fid_ctl >> CTD_FID1_SHFT) & CTD_FID1_MASK;
+}
+
+static inline int ctd_get_fid0_ctl(struct vpdma_ctd *ctd)
+{
+	return ctd->fid_ctl & CTD_FID2_MASK;
+}
+
+static inline int ctd_get_pkt_type(struct vpdma_ctd *ctd)
+{
+	return ctd->type_source_ctl >> CTD_PKT_TYPE_SHFT;
+}
+
+static inline int ctd_get_source(struct vpdma_ctd *ctd)
+{
+	return (ctd->type_source_ctl >> CTD_SOURCE_SHFT) & CTD_SOURCE_MASK;
+}
+
+static inline int ctd_get_ctl(struct vpdma_ctd *ctd)
+{
+	return ctd->type_source_ctl & CTD_CONTROL_MASK;
+}
+
 #endif
-- 
cgit 


From 4571912743ac6a04a6644e5a292bb9876bb5329b Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Wed, 16 Oct 2013 02:36:47 -0300
Subject: [media] v4l: ti-vpe: Add VPE mem to mem driver

VPE is a block which consists of a single memory to memory path which
can perform chrominance up/down sampling, de-interlacing, scaling, and
color space conversion of raster or tiled YUV420 coplanar, YUV422
coplanar or YUV422 interleaved video formats.

We create a mem2mem driver based primarily on the mem2mem-testdev
example. The de-interlacer, scaler and color space converter are all
bypassed for now to keep the driver simple. Chroma up/down sampler
blocks are implemented, so conversion beteen different YUV formats is
possible.

Each mem2mem context allocates a buffer for VPE MMR values which it will
use when it gets access to the VPE HW via the mem2mem queue, it also
allocates a VPDMA descriptor list to which configuration and data
descriptors are added.

Based on the information received via v4l2 ioctls for the source and
destination queues, the driver configures the values for the MMRs, and
stores them in the buffer. There are also some VPDMA parameters like
frame start and line mode which needs to be configured, these are
configured by direct register writes via the VPDMA helper functions.

The driver's device_run() mem2mem op will add each descriptor based on
how the source and destination queues are set up for the given ctx, once
the list is prepared, it's submitted to VPDMA, these descriptors when
parsed by VPDMA will upload MMR registers, start DMA of video buffers on
the various input and output clients/ports.

When the list is parsed completely(and the DMAs on all the output ports
done), an interrupt is generated which we use to notify that the source
and destination buffers are done. The rest of the driver is quite
similar to other mem2mem drivers, we use the multiplane v4l2 ioctls as
the HW support coplanar formats.

Signed-off-by: Archit Taneja <archit@ti.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/Kconfig           |   16 +
 drivers/media/platform/Makefile          |    2 +
 drivers/media/platform/ti-vpe/Makefile   |    5 +
 drivers/media/platform/ti-vpe/vpe.c      | 1775 ++++++++++++++++++++++++++++++
 drivers/media/platform/ti-vpe/vpe_regs.h |  496 +++++++++
 include/uapi/linux/v4l2-controls.h       |    4 +
 6 files changed, 2298 insertions(+)
 create mode 100644 drivers/media/platform/ti-vpe/Makefile
 create mode 100644 drivers/media/platform/ti-vpe/vpe.c
 create mode 100644 drivers/media/platform/ti-vpe/vpe_regs.h

diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index 29acc2d2aee6..2405ef7c6604 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -220,6 +220,22 @@ config VIDEO_RENESAS_VSP1
 	  To compile this driver as a module, choose M here: the module
 	  will be called vsp1.
 
+config VIDEO_TI_VPE
+	tristate "TI VPE (Video Processing Engine) driver"
+	depends on VIDEO_DEV && VIDEO_V4L2 && SOC_DRA7XX
+	select VIDEOBUF2_DMA_CONTIG
+	select V4L2_MEM2MEM_DEV
+	default n
+	---help---
+	  Support for the TI VPE(Video Processing Engine) block
+	  found on DRA7XX SoC.
+
+config VIDEO_TI_VPE_DEBUG
+	bool "VPE debug messages"
+	depends on VIDEO_TI_VPE
+	---help---
+	  Enable debug messages on VPE driver.
+
 endif # V4L_MEM2MEM_DRIVERS
 
 menuconfig V4L_TEST_DRIVERS
diff --git a/drivers/media/platform/Makefile b/drivers/media/platform/Makefile
index 4e4da482c522..1348ba1faf92 100644
--- a/drivers/media/platform/Makefile
+++ b/drivers/media/platform/Makefile
@@ -22,6 +22,8 @@ obj-$(CONFIG_VIDEO_VIVI) += vivi.o
 
 obj-$(CONFIG_VIDEO_MEM2MEM_TESTDEV) += mem2mem_testdev.o
 
+obj-$(CONFIG_VIDEO_TI_VPE)		+= ti-vpe/
+
 obj-$(CONFIG_VIDEO_MX2_EMMAPRP)		+= mx2_emmaprp.o
 obj-$(CONFIG_VIDEO_CODA) 		+= coda.o
 
diff --git a/drivers/media/platform/ti-vpe/Makefile b/drivers/media/platform/ti-vpe/Makefile
new file mode 100644
index 000000000000..cbf0a806ba1d
--- /dev/null
+++ b/drivers/media/platform/ti-vpe/Makefile
@@ -0,0 +1,5 @@
+obj-$(CONFIG_VIDEO_TI_VPE) += ti-vpe.o
+
+ti-vpe-y := vpe.o vpdma.o
+
+ccflags-$(CONFIG_VIDEO_TI_VPE_DEBUG) += -DDEBUG
diff --git a/drivers/media/platform/ti-vpe/vpe.c b/drivers/media/platform/ti-vpe/vpe.c
new file mode 100644
index 000000000000..3bd9ca658b54
--- /dev/null
+++ b/drivers/media/platform/ti-vpe/vpe.c
@@ -0,0 +1,1775 @@
+/*
+ * TI VPE mem2mem driver, based on the virtual v4l2-mem2mem example driver
+ *
+ * Copyright (c) 2013 Texas Instruments Inc.
+ * David Griego, <dagriego@biglakesoftware.com>
+ * Dale Farnsworth, <dale@farnsworth.org>
+ * Archit Taneja, <archit@ti.com>
+ *
+ * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
+ * Pawel Osciak, <pawel@osciak.com>
+ * Marek Szyprowski, <m.szyprowski@samsung.com>
+ *
+ * Based on the virtual v4l2-mem2mem example device
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation
+ */
+
+#include <linux/delay.h>
+#include <linux/dma-mapping.h>
+#include <linux/err.h>
+#include <linux/fs.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/ioctl.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/videodev2.h>
+
+#include <media/v4l2-common.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/videobuf2-core.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "vpdma.h"
+#include "vpe_regs.h"
+
+#define VPE_MODULE_NAME "vpe"
+
+/* minimum and maximum frame sizes */
+#define MIN_W		128
+#define MIN_H		128
+#define MAX_W		1920
+#define MAX_H		1080
+
+/* required alignments */
+#define S_ALIGN		0	/* multiple of 1 */
+#define H_ALIGN		1	/* multiple of 2 */
+#define W_ALIGN		1	/* multiple of 2 */
+
+/* multiple of 128 bits, line stride, 16 bytes */
+#define L_ALIGN		4
+
+/* flags that indicate a format can be used for capture/output */
+#define VPE_FMT_TYPE_CAPTURE	(1 << 0)
+#define VPE_FMT_TYPE_OUTPUT	(1 << 1)
+
+/* used as plane indices */
+#define VPE_MAX_PLANES	2
+#define VPE_LUMA	0
+#define VPE_CHROMA	1
+
+/* per m2m context info */
+#define VPE_DEF_BUFS_PER_JOB	1	/* default one buffer per batch job */
+
+/*
+ * each VPE context can need up to 3 config desciptors, 7 input descriptors,
+ * 3 output descriptors, and 10 control descriptors
+ */
+#define VPE_DESC_LIST_SIZE	(10 * VPDMA_DTD_DESC_SIZE +	\
+					13 * VPDMA_CFD_CTD_DESC_SIZE)
+
+#define vpe_dbg(vpedev, fmt, arg...)	\
+		dev_dbg((vpedev)->v4l2_dev.dev, fmt, ##arg)
+#define vpe_err(vpedev, fmt, arg...)	\
+		dev_err((vpedev)->v4l2_dev.dev, fmt, ##arg)
+
+struct vpe_us_coeffs {
+	unsigned short	anchor_fid0_c0;
+	unsigned short	anchor_fid0_c1;
+	unsigned short	anchor_fid0_c2;
+	unsigned short	anchor_fid0_c3;
+	unsigned short	interp_fid0_c0;
+	unsigned short	interp_fid0_c1;
+	unsigned short	interp_fid0_c2;
+	unsigned short	interp_fid0_c3;
+	unsigned short	anchor_fid1_c0;
+	unsigned short	anchor_fid1_c1;
+	unsigned short	anchor_fid1_c2;
+	unsigned short	anchor_fid1_c3;
+	unsigned short	interp_fid1_c0;
+	unsigned short	interp_fid1_c1;
+	unsigned short	interp_fid1_c2;
+	unsigned short	interp_fid1_c3;
+};
+
+/*
+ * Default upsampler coefficients
+ */
+static const struct vpe_us_coeffs us_coeffs[] = {
+	{
+		/* Coefficients for progressive input */
+		0x00C8, 0x0348, 0x0018, 0x3FD8, 0x3FB8, 0x0378, 0x00E8, 0x3FE8,
+		0x00C8, 0x0348, 0x0018, 0x3FD8, 0x3FB8, 0x0378, 0x00E8, 0x3FE8,
+	},
+};
+
+/*
+ * The port_data structure contains per-port data.
+ */
+struct vpe_port_data {
+	enum vpdma_channel channel;	/* VPDMA channel */
+	u8	vb_part;		/* plane index for co-panar formats */
+};
+
+/*
+ * Define indices into the port_data tables
+ */
+#define VPE_PORT_LUMA1_IN	0
+#define VPE_PORT_CHROMA1_IN	1
+#define VPE_PORT_LUMA_OUT	8
+#define VPE_PORT_CHROMA_OUT	9
+#define VPE_PORT_RGB_OUT	10
+
+static const struct vpe_port_data port_data[11] = {
+	[VPE_PORT_LUMA1_IN] = {
+		.channel	= VPE_CHAN_LUMA1_IN,
+		.vb_part	= VPE_LUMA,
+	},
+	[VPE_PORT_CHROMA1_IN] = {
+		.channel	= VPE_CHAN_CHROMA1_IN,
+		.vb_part	= VPE_CHROMA,
+	},
+	[VPE_PORT_LUMA_OUT] = {
+		.channel	= VPE_CHAN_LUMA_OUT,
+		.vb_part	= VPE_LUMA,
+	},
+	[VPE_PORT_CHROMA_OUT] = {
+		.channel	= VPE_CHAN_CHROMA_OUT,
+		.vb_part	= VPE_CHROMA,
+	},
+	[VPE_PORT_RGB_OUT] = {
+		.channel	= VPE_CHAN_RGB_OUT,
+		.vb_part	= VPE_LUMA,
+	},
+};
+
+
+/* driver info for each of the supported video formats */
+struct vpe_fmt {
+	char	*name;			/* human-readable name */
+	u32	fourcc;			/* standard format identifier */
+	u8	types;			/* CAPTURE and/or OUTPUT */
+	u8	coplanar;		/* set for unpacked Luma and Chroma */
+	/* vpdma format info for each plane */
+	struct vpdma_data_format const *vpdma_fmt[VPE_MAX_PLANES];
+};
+
+static struct vpe_fmt vpe_formats[] = {
+	{
+		.name		= "YUV 422 co-planar",
+		.fourcc		= V4L2_PIX_FMT_NV16,
+		.types		= VPE_FMT_TYPE_CAPTURE | VPE_FMT_TYPE_OUTPUT,
+		.coplanar	= 1,
+		.vpdma_fmt	= { &vpdma_yuv_fmts[VPDMA_DATA_FMT_Y444],
+				    &vpdma_yuv_fmts[VPDMA_DATA_FMT_C444],
+				  },
+	},
+	{
+		.name		= "YUV 420 co-planar",
+		.fourcc		= V4L2_PIX_FMT_NV12,
+		.types		= VPE_FMT_TYPE_CAPTURE | VPE_FMT_TYPE_OUTPUT,
+		.coplanar	= 1,
+		.vpdma_fmt	= { &vpdma_yuv_fmts[VPDMA_DATA_FMT_Y420],
+				    &vpdma_yuv_fmts[VPDMA_DATA_FMT_C420],
+				  },
+	},
+	{
+		.name		= "YUYV 422 packed",
+		.fourcc		= V4L2_PIX_FMT_YUYV,
+		.types		= VPE_FMT_TYPE_CAPTURE | VPE_FMT_TYPE_OUTPUT,
+		.coplanar	= 0,
+		.vpdma_fmt	= { &vpdma_yuv_fmts[VPDMA_DATA_FMT_YC422],
+				  },
+	},
+	{
+		.name		= "UYVY 422 packed",
+		.fourcc		= V4L2_PIX_FMT_UYVY,
+		.types		= VPE_FMT_TYPE_CAPTURE | VPE_FMT_TYPE_OUTPUT,
+		.coplanar	= 0,
+		.vpdma_fmt	= { &vpdma_yuv_fmts[VPDMA_DATA_FMT_CY422],
+				  },
+	},
+};
+
+/*
+ * per-queue, driver-specific private data.
+ * there is one source queue and one destination queue for each m2m context.
+ */
+struct vpe_q_data {
+	unsigned int		width;				/* frame width */
+	unsigned int		height;				/* frame height */
+	unsigned int		bytesperline[VPE_MAX_PLANES];	/* bytes per line in memory */
+	enum v4l2_colorspace	colorspace;
+	unsigned int		flags;
+	unsigned int		sizeimage[VPE_MAX_PLANES];	/* image size in memory */
+	struct v4l2_rect	c_rect;				/* crop/compose rectangle */
+	struct vpe_fmt		*fmt;				/* format info */
+};
+
+/* vpe_q_data flag bits */
+#define	Q_DATA_FRAME_1D		(1 << 0)
+#define	Q_DATA_MODE_TILED	(1 << 1)
+
+enum {
+	Q_DATA_SRC = 0,
+	Q_DATA_DST = 1,
+};
+
+/* find our format description corresponding to the passed v4l2_format */
+static struct vpe_fmt *find_format(struct v4l2_format *f)
+{
+	struct vpe_fmt *fmt;
+	unsigned int k;
+
+	for (k = 0; k < ARRAY_SIZE(vpe_formats); k++) {
+		fmt = &vpe_formats[k];
+		if (fmt->fourcc == f->fmt.pix.pixelformat)
+			return fmt;
+	}
+
+	return NULL;
+}
+
+/*
+ * there is one vpe_dev structure in the driver, it is shared by
+ * all instances.
+ */
+struct vpe_dev {
+	struct v4l2_device	v4l2_dev;
+	struct video_device	vfd;
+	struct v4l2_m2m_dev	*m2m_dev;
+
+	atomic_t		num_instances;	/* count of driver instances */
+	dma_addr_t		loaded_mmrs;	/* shadow mmrs in device */
+	struct mutex		dev_mutex;
+	spinlock_t		lock;
+
+	int			irq;
+	void __iomem		*base;
+
+	struct vb2_alloc_ctx	*alloc_ctx;
+	struct vpdma_data	*vpdma;		/* vpdma data handle */
+};
+
+/*
+ * There is one vpe_ctx structure for each m2m context.
+ */
+struct vpe_ctx {
+	struct v4l2_fh		fh;
+	struct vpe_dev		*dev;
+	struct v4l2_m2m_ctx	*m2m_ctx;
+	struct v4l2_ctrl_handler hdl;
+
+	unsigned int		sequence;		/* current frame/field seq */
+	unsigned int		aborting;		/* abort after next irq */
+
+	unsigned int		bufs_per_job;		/* input buffers per batch */
+	unsigned int		bufs_completed;		/* bufs done in this batch */
+
+	struct vpe_q_data	q_data[2];		/* src & dst queue data */
+	struct vb2_buffer	*src_vb;
+	struct vb2_buffer	*dst_vb;
+
+	struct vpdma_buf	mmr_adb;		/* shadow reg addr/data block */
+	struct vpdma_desc_list	desc_list;		/* DMA descriptor list */
+
+	bool			load_mmrs;		/* have new shadow reg values */
+};
+
+
+/*
+ * M2M devices get 2 queues.
+ * Return the queue given the type.
+ */
+static struct vpe_q_data *get_q_data(struct vpe_ctx *ctx,
+				     enum v4l2_buf_type type)
+{
+	switch (type) {
+	case V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE:
+		return &ctx->q_data[Q_DATA_SRC];
+	case V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE:
+		return &ctx->q_data[Q_DATA_DST];
+	default:
+		BUG();
+	}
+	return NULL;
+}
+
+static u32 read_reg(struct vpe_dev *dev, int offset)
+{
+	return ioread32(dev->base + offset);
+}
+
+static void write_reg(struct vpe_dev *dev, int offset, u32 value)
+{
+	iowrite32(value, dev->base + offset);
+}
+
+/* register field read/write helpers */
+static int get_field(u32 value, u32 mask, int shift)
+{
+	return (value & (mask << shift)) >> shift;
+}
+
+static int read_field_reg(struct vpe_dev *dev, int offset, u32 mask, int shift)
+{
+	return get_field(read_reg(dev, offset), mask, shift);
+}
+
+static void write_field(u32 *valp, u32 field, u32 mask, int shift)
+{
+	u32 val = *valp;
+
+	val &= ~(mask << shift);
+	val |= (field & mask) << shift;
+	*valp = val;
+}
+
+static void write_field_reg(struct vpe_dev *dev, int offset, u32 field,
+		u32 mask, int shift)
+{
+	u32 val = read_reg(dev, offset);
+
+	write_field(&val, field, mask, shift);
+
+	write_reg(dev, offset, val);
+}
+
+/*
+ * DMA address/data block for the shadow registers
+ */
+struct vpe_mmr_adb {
+	struct vpdma_adb_hdr	out_fmt_hdr;
+	u32			out_fmt_reg[1];
+	u32			out_fmt_pad[3];
+	struct vpdma_adb_hdr	us1_hdr;
+	u32			us1_regs[8];
+	struct vpdma_adb_hdr	us2_hdr;
+	u32			us2_regs[8];
+	struct vpdma_adb_hdr	us3_hdr;
+	u32			us3_regs[8];
+	struct vpdma_adb_hdr	dei_hdr;
+	u32			dei_regs[1];
+	u32			dei_pad[3];
+	struct vpdma_adb_hdr	sc_hdr;
+	u32			sc_regs[1];
+	u32			sc_pad[3];
+	struct vpdma_adb_hdr	csc_hdr;
+	u32			csc_regs[6];
+	u32			csc_pad[2];
+};
+
+#define VPE_SET_MMR_ADB_HDR(ctx, hdr, regs, offset_a)	\
+	VPDMA_SET_MMR_ADB_HDR(ctx->mmr_adb, vpe_mmr_adb, hdr, regs, offset_a)
+/*
+ * Set the headers for all of the address/data block structures.
+ */
+static void init_adb_hdrs(struct vpe_ctx *ctx)
+{
+	VPE_SET_MMR_ADB_HDR(ctx, out_fmt_hdr, out_fmt_reg, VPE_CLK_FORMAT_SELECT);
+	VPE_SET_MMR_ADB_HDR(ctx, us1_hdr, us1_regs, VPE_US1_R0);
+	VPE_SET_MMR_ADB_HDR(ctx, us2_hdr, us2_regs, VPE_US2_R0);
+	VPE_SET_MMR_ADB_HDR(ctx, us3_hdr, us3_regs, VPE_US3_R0);
+	VPE_SET_MMR_ADB_HDR(ctx, dei_hdr, dei_regs, VPE_DEI_FRAME_SIZE);
+	VPE_SET_MMR_ADB_HDR(ctx, sc_hdr, sc_regs, VPE_SC_MP_SC0);
+	VPE_SET_MMR_ADB_HDR(ctx, csc_hdr, csc_regs, VPE_CSC_CSC00);
+};
+
+/*
+ * Enable or disable the VPE clocks
+ */
+static void vpe_set_clock_enable(struct vpe_dev *dev, bool on)
+{
+	u32 val = 0;
+
+	if (on)
+		val = VPE_DATA_PATH_CLK_ENABLE | VPE_VPEDMA_CLK_ENABLE;
+	write_reg(dev, VPE_CLK_ENABLE, val);
+}
+
+static void vpe_top_reset(struct vpe_dev *dev)
+{
+
+	write_field_reg(dev, VPE_CLK_RESET, 1, VPE_DATA_PATH_CLK_RESET_MASK,
+		VPE_DATA_PATH_CLK_RESET_SHIFT);
+
+	usleep_range(100, 150);
+
+	write_field_reg(dev, VPE_CLK_RESET, 0, VPE_DATA_PATH_CLK_RESET_MASK,
+		VPE_DATA_PATH_CLK_RESET_SHIFT);
+}
+
+static void vpe_top_vpdma_reset(struct vpe_dev *dev)
+{
+	write_field_reg(dev, VPE_CLK_RESET, 1, VPE_VPDMA_CLK_RESET_MASK,
+		VPE_VPDMA_CLK_RESET_SHIFT);
+
+	usleep_range(100, 150);
+
+	write_field_reg(dev, VPE_CLK_RESET, 0, VPE_VPDMA_CLK_RESET_MASK,
+		VPE_VPDMA_CLK_RESET_SHIFT);
+}
+
+/*
+ * Load the correct of upsampler coefficients into the shadow MMRs
+ */
+static void set_us_coefficients(struct vpe_ctx *ctx)
+{
+	struct vpe_mmr_adb *mmr_adb = ctx->mmr_adb.addr;
+	u32 *us1_reg = &mmr_adb->us1_regs[0];
+	u32 *us2_reg = &mmr_adb->us2_regs[0];
+	u32 *us3_reg = &mmr_adb->us3_regs[0];
+	const unsigned short *cp, *end_cp;
+
+	cp = &us_coeffs[0].anchor_fid0_c0;
+
+	end_cp = cp + sizeof(us_coeffs[0]) / sizeof(*cp);
+
+	while (cp < end_cp) {
+		write_field(us1_reg, *cp++, VPE_US_C0_MASK, VPE_US_C0_SHIFT);
+		write_field(us1_reg, *cp++, VPE_US_C1_MASK, VPE_US_C1_SHIFT);
+		*us2_reg++ = *us1_reg;
+		*us3_reg++ = *us1_reg++;
+	}
+	ctx->load_mmrs = true;
+}
+
+/*
+ * Set the upsampler config mode and the VPDMA line mode in the shadow MMRs.
+ */
+static void set_cfg_and_line_modes(struct vpe_ctx *ctx)
+{
+	struct vpe_fmt *fmt = ctx->q_data[Q_DATA_SRC].fmt;
+	struct vpe_mmr_adb *mmr_adb = ctx->mmr_adb.addr;
+	u32 *us1_reg0 = &mmr_adb->us1_regs[0];
+	u32 *us2_reg0 = &mmr_adb->us2_regs[0];
+	u32 *us3_reg0 = &mmr_adb->us3_regs[0];
+	int line_mode = 1;
+	int cfg_mode = 1;
+
+	/*
+	 * Cfg Mode 0: YUV420 source, enable upsampler, DEI is de-interlacing.
+	 * Cfg Mode 1: YUV422 source, disable upsampler, DEI is de-interlacing.
+	 */
+
+	if (fmt->fourcc == V4L2_PIX_FMT_NV12) {
+		cfg_mode = 0;
+		line_mode = 0;		/* double lines to line buffer */
+	}
+
+	write_field(us1_reg0, cfg_mode, VPE_US_MODE_MASK, VPE_US_MODE_SHIFT);
+	write_field(us2_reg0, cfg_mode, VPE_US_MODE_MASK, VPE_US_MODE_SHIFT);
+	write_field(us3_reg0, cfg_mode, VPE_US_MODE_MASK, VPE_US_MODE_SHIFT);
+
+	/* regs for now */
+	vpdma_set_line_mode(ctx->dev->vpdma, line_mode, VPE_CHAN_CHROMA1_IN);
+
+	/* frame start for input luma */
+	vpdma_set_frame_start_event(ctx->dev->vpdma, VPDMA_FSEVENT_CHANNEL_ACTIVE,
+		VPE_CHAN_LUMA1_IN);
+
+	/* frame start for input chroma */
+	vpdma_set_frame_start_event(ctx->dev->vpdma, VPDMA_FSEVENT_CHANNEL_ACTIVE,
+		VPE_CHAN_CHROMA1_IN);
+
+	ctx->load_mmrs = true;
+}
+
+/*
+ * Set the shadow registers that are modified when the source
+ * format changes.
+ */
+static void set_src_registers(struct vpe_ctx *ctx)
+{
+	set_us_coefficients(ctx);
+}
+
+/*
+ * Set the shadow registers that are modified when the destination
+ * format changes.
+ */
+static void set_dst_registers(struct vpe_ctx *ctx)
+{
+	struct vpe_mmr_adb *mmr_adb = ctx->mmr_adb.addr;
+	struct vpe_fmt *fmt = ctx->q_data[Q_DATA_DST].fmt;
+	u32 val = 0;
+
+	/* select RGB path when color space conversion is supported in future */
+	if (fmt->fourcc == V4L2_PIX_FMT_RGB24)
+		val |= VPE_RGB_OUT_SELECT | VPE_CSC_SRC_DEI_SCALER;
+	else if (fmt->fourcc == V4L2_PIX_FMT_NV16)
+		val |= VPE_COLOR_SEPARATE_422;
+
+	/* The source of CHR_DS is always the scaler, whether it's used or not */
+	val |= VPE_DS_SRC_DEI_SCALER;
+
+	if (fmt->fourcc != V4L2_PIX_FMT_NV12)
+		val |= VPE_DS_BYPASS;
+
+	mmr_adb->out_fmt_reg[0] = val;
+
+	ctx->load_mmrs = true;
+}
+
+/*
+ * Set the de-interlacer shadow register values
+ */
+static void set_dei_regs_bypass(struct vpe_ctx *ctx)
+{
+	struct vpe_mmr_adb *mmr_adb = ctx->mmr_adb.addr;
+	struct vpe_q_data *s_q_data = &ctx->q_data[Q_DATA_SRC];
+	unsigned int src_h = s_q_data->c_rect.height;
+	unsigned int src_w = s_q_data->c_rect.width;
+	u32 *dei_mmr0 = &mmr_adb->dei_regs[0];
+	u32 val = 0;
+
+	/*
+	 * according to TRM, we should set DEI in progressive bypass mode when
+	 * the input content is progressive, however, DEI is bypassed correctly
+	 * for both progressive and interlace content in interlace bypass mode.
+	 * It has been recommended not to use progressive bypass mode.
+	 */
+	val = VPE_DEI_INTERLACE_BYPASS;
+
+	val |= (src_h << VPE_DEI_HEIGHT_SHIFT) |
+		(src_w << VPE_DEI_WIDTH_SHIFT) |
+		VPE_DEI_FIELD_FLUSH;
+
+	*dei_mmr0 = val;
+
+	ctx->load_mmrs = true;
+}
+
+static void set_csc_coeff_bypass(struct vpe_ctx *ctx)
+{
+	struct vpe_mmr_adb *mmr_adb = ctx->mmr_adb.addr;
+	u32 *shadow_csc_reg5 = &mmr_adb->csc_regs[5];
+
+	*shadow_csc_reg5 |= VPE_CSC_BYPASS;
+
+	ctx->load_mmrs = true;
+}
+
+static void set_sc_regs_bypass(struct vpe_ctx *ctx)
+{
+	struct vpe_mmr_adb *mmr_adb = ctx->mmr_adb.addr;
+	u32 *sc_reg0 = &mmr_adb->sc_regs[0];
+	u32 val = 0;
+
+	val |= VPE_SC_BYPASS;
+	*sc_reg0 = val;
+
+	ctx->load_mmrs = true;
+}
+
+/*
+ * Set the shadow registers whose values are modified when either the
+ * source or destination format is changed.
+ */
+static int set_srcdst_params(struct vpe_ctx *ctx)
+{
+	ctx->sequence = 0;
+
+	set_cfg_and_line_modes(ctx);
+	set_dei_regs_bypass(ctx);
+	set_csc_coeff_bypass(ctx);
+	set_sc_regs_bypass(ctx);
+
+	return 0;
+}
+
+/*
+ * Return the vpe_ctx structure for a given struct file
+ */
+static struct vpe_ctx *file2ctx(struct file *file)
+{
+	return container_of(file->private_data, struct vpe_ctx, fh);
+}
+
+/*
+ * mem2mem callbacks
+ */
+
+/**
+ * job_ready() - check whether an instance is ready to be scheduled to run
+ */
+static int job_ready(void *priv)
+{
+	struct vpe_ctx *ctx = priv;
+	int needed = ctx->bufs_per_job;
+
+	if (v4l2_m2m_num_src_bufs_ready(ctx->m2m_ctx) < needed)
+		return 0;
+
+	return 1;
+}
+
+static void job_abort(void *priv)
+{
+	struct vpe_ctx *ctx = priv;
+
+	/* Will cancel the transaction in the next interrupt handler */
+	ctx->aborting = 1;
+}
+
+/*
+ * Lock access to the device
+ */
+static void vpe_lock(void *priv)
+{
+	struct vpe_ctx *ctx = priv;
+	struct vpe_dev *dev = ctx->dev;
+	mutex_lock(&dev->dev_mutex);
+}
+
+static void vpe_unlock(void *priv)
+{
+	struct vpe_ctx *ctx = priv;
+	struct vpe_dev *dev = ctx->dev;
+	mutex_unlock(&dev->dev_mutex);
+}
+
+static void vpe_dump_regs(struct vpe_dev *dev)
+{
+#define DUMPREG(r) vpe_dbg(dev, "%-35s %08x\n", #r, read_reg(dev, VPE_##r))
+
+	vpe_dbg(dev, "VPE Registers:\n");
+
+	DUMPREG(PID);
+	DUMPREG(SYSCONFIG);
+	DUMPREG(INT0_STATUS0_RAW);
+	DUMPREG(INT0_STATUS0);
+	DUMPREG(INT0_ENABLE0);
+	DUMPREG(INT0_STATUS1_RAW);
+	DUMPREG(INT0_STATUS1);
+	DUMPREG(INT0_ENABLE1);
+	DUMPREG(CLK_ENABLE);
+	DUMPREG(CLK_RESET);
+	DUMPREG(CLK_FORMAT_SELECT);
+	DUMPREG(CLK_RANGE_MAP);
+	DUMPREG(US1_R0);
+	DUMPREG(US1_R1);
+	DUMPREG(US1_R2);
+	DUMPREG(US1_R3);
+	DUMPREG(US1_R4);
+	DUMPREG(US1_R5);
+	DUMPREG(US1_R6);
+	DUMPREG(US1_R7);
+	DUMPREG(US2_R0);
+	DUMPREG(US2_R1);
+	DUMPREG(US2_R2);
+	DUMPREG(US2_R3);
+	DUMPREG(US2_R4);
+	DUMPREG(US2_R5);
+	DUMPREG(US2_R6);
+	DUMPREG(US2_R7);
+	DUMPREG(US3_R0);
+	DUMPREG(US3_R1);
+	DUMPREG(US3_R2);
+	DUMPREG(US3_R3);
+	DUMPREG(US3_R4);
+	DUMPREG(US3_R5);
+	DUMPREG(US3_R6);
+	DUMPREG(US3_R7);
+	DUMPREG(DEI_FRAME_SIZE);
+	DUMPREG(MDT_BYPASS);
+	DUMPREG(MDT_SF_THRESHOLD);
+	DUMPREG(EDI_CONFIG);
+	DUMPREG(DEI_EDI_LUT_R0);
+	DUMPREG(DEI_EDI_LUT_R1);
+	DUMPREG(DEI_EDI_LUT_R2);
+	DUMPREG(DEI_EDI_LUT_R3);
+	DUMPREG(DEI_FMD_WINDOW_R0);
+	DUMPREG(DEI_FMD_WINDOW_R1);
+	DUMPREG(DEI_FMD_CONTROL_R0);
+	DUMPREG(DEI_FMD_CONTROL_R1);
+	DUMPREG(DEI_FMD_STATUS_R0);
+	DUMPREG(DEI_FMD_STATUS_R1);
+	DUMPREG(DEI_FMD_STATUS_R2);
+	DUMPREG(SC_MP_SC0);
+	DUMPREG(SC_MP_SC1);
+	DUMPREG(SC_MP_SC2);
+	DUMPREG(SC_MP_SC3);
+	DUMPREG(SC_MP_SC4);
+	DUMPREG(SC_MP_SC5);
+	DUMPREG(SC_MP_SC6);
+	DUMPREG(SC_MP_SC8);
+	DUMPREG(SC_MP_SC9);
+	DUMPREG(SC_MP_SC10);
+	DUMPREG(SC_MP_SC11);
+	DUMPREG(SC_MP_SC12);
+	DUMPREG(SC_MP_SC13);
+	DUMPREG(SC_MP_SC17);
+	DUMPREG(SC_MP_SC18);
+	DUMPREG(SC_MP_SC19);
+	DUMPREG(SC_MP_SC20);
+	DUMPREG(SC_MP_SC21);
+	DUMPREG(SC_MP_SC22);
+	DUMPREG(SC_MP_SC23);
+	DUMPREG(SC_MP_SC24);
+	DUMPREG(SC_MP_SC25);
+	DUMPREG(CSC_CSC00);
+	DUMPREG(CSC_CSC01);
+	DUMPREG(CSC_CSC02);
+	DUMPREG(CSC_CSC03);
+	DUMPREG(CSC_CSC04);
+	DUMPREG(CSC_CSC05);
+#undef DUMPREG
+}
+
+static void add_out_dtd(struct vpe_ctx *ctx, int port)
+{
+	struct vpe_q_data *q_data = &ctx->q_data[Q_DATA_DST];
+	const struct vpe_port_data *p_data = &port_data[port];
+	struct vb2_buffer *vb = ctx->dst_vb;
+	struct v4l2_rect *c_rect = &q_data->c_rect;
+	struct vpe_fmt *fmt = q_data->fmt;
+	const struct vpdma_data_format *vpdma_fmt;
+	int plane = fmt->coplanar ? p_data->vb_part : 0;
+	dma_addr_t dma_addr;
+	u32 flags = 0;
+
+	vpdma_fmt = fmt->vpdma_fmt[plane];
+	dma_addr = vb2_dma_contig_plane_dma_addr(vb, plane);
+	if (!dma_addr) {
+		vpe_err(ctx->dev,
+			"acquiring output buffer(%d) dma_addr failed\n",
+			port);
+		return;
+	}
+
+	if (q_data->flags & Q_DATA_FRAME_1D)
+		flags |= VPDMA_DATA_FRAME_1D;
+	if (q_data->flags & Q_DATA_MODE_TILED)
+		flags |= VPDMA_DATA_MODE_TILED;
+
+	vpdma_add_out_dtd(&ctx->desc_list, c_rect, vpdma_fmt, dma_addr,
+		p_data->channel, flags);
+}
+
+static void add_in_dtd(struct vpe_ctx *ctx, int port)
+{
+	struct vpe_q_data *q_data = &ctx->q_data[Q_DATA_SRC];
+	const struct vpe_port_data *p_data = &port_data[port];
+	struct vb2_buffer *vb = ctx->src_vb;
+	struct v4l2_rect *c_rect = &q_data->c_rect;
+	struct vpe_fmt *fmt = q_data->fmt;
+	const struct vpdma_data_format *vpdma_fmt;
+	int plane = fmt->coplanar ? p_data->vb_part : 0;
+	int field = 0;
+	dma_addr_t dma_addr;
+	u32 flags = 0;
+
+	vpdma_fmt = fmt->vpdma_fmt[plane];
+
+	dma_addr = vb2_dma_contig_plane_dma_addr(vb, plane);
+	if (!dma_addr) {
+		vpe_err(ctx->dev,
+			"acquiring input buffer(%d) dma_addr failed\n",
+			port);
+		return;
+	}
+
+	if (q_data->flags & Q_DATA_FRAME_1D)
+		flags |= VPDMA_DATA_FRAME_1D;
+	if (q_data->flags & Q_DATA_MODE_TILED)
+		flags |= VPDMA_DATA_MODE_TILED;
+
+	vpdma_add_in_dtd(&ctx->desc_list, q_data->width, q_data->height,
+		c_rect, vpdma_fmt, dma_addr, p_data->channel, field, flags);
+}
+
+/*
+ * Enable the expected IRQ sources
+ */
+static void enable_irqs(struct vpe_ctx *ctx)
+{
+	write_reg(ctx->dev, VPE_INT0_ENABLE0_SET, VPE_INT0_LIST0_COMPLETE);
+	write_reg(ctx->dev, VPE_INT0_ENABLE1_SET, VPE_DS1_UV_ERROR_INT);
+
+	vpdma_enable_list_complete_irq(ctx->dev->vpdma, 0, true);
+}
+
+static void disable_irqs(struct vpe_ctx *ctx)
+{
+	write_reg(ctx->dev, VPE_INT0_ENABLE0_CLR, 0xffffffff);
+	write_reg(ctx->dev, VPE_INT0_ENABLE1_CLR, 0xffffffff);
+
+	vpdma_enable_list_complete_irq(ctx->dev->vpdma, 0, false);
+}
+
+/* device_run() - prepares and starts the device
+ *
+ * This function is only called when both the source and destination
+ * buffers are in place.
+ */
+static void device_run(void *priv)
+{
+	struct vpe_ctx *ctx = priv;
+	struct vpe_q_data *d_q_data = &ctx->q_data[Q_DATA_DST];
+
+	ctx->src_vb = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
+	WARN_ON(ctx->src_vb == NULL);
+	ctx->dst_vb = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
+	WARN_ON(ctx->dst_vb == NULL);
+
+	/* config descriptors */
+	if (ctx->dev->loaded_mmrs != ctx->mmr_adb.dma_addr || ctx->load_mmrs) {
+		vpdma_map_desc_buf(ctx->dev->vpdma, &ctx->mmr_adb);
+		vpdma_add_cfd_adb(&ctx->desc_list, CFD_MMR_CLIENT, &ctx->mmr_adb);
+		ctx->dev->loaded_mmrs = ctx->mmr_adb.dma_addr;
+		ctx->load_mmrs = false;
+	}
+
+	add_out_dtd(ctx, VPE_PORT_LUMA_OUT);
+	if (d_q_data->fmt->coplanar)
+		add_out_dtd(ctx, VPE_PORT_CHROMA_OUT);
+
+	add_in_dtd(ctx, VPE_PORT_LUMA1_IN);
+	add_in_dtd(ctx, VPE_PORT_CHROMA1_IN);
+
+	/* sync on channel control descriptors for input ports */
+	vpdma_add_sync_on_channel_ctd(&ctx->desc_list, VPE_CHAN_LUMA1_IN);
+	vpdma_add_sync_on_channel_ctd(&ctx->desc_list, VPE_CHAN_CHROMA1_IN);
+
+	/* sync on channel control descriptors for output ports */
+	vpdma_add_sync_on_channel_ctd(&ctx->desc_list, VPE_CHAN_LUMA_OUT);
+	if (d_q_data->fmt->coplanar)
+		vpdma_add_sync_on_channel_ctd(&ctx->desc_list, VPE_CHAN_CHROMA_OUT);
+
+	enable_irqs(ctx);
+
+	vpdma_map_desc_buf(ctx->dev->vpdma, &ctx->desc_list.buf);
+	vpdma_submit_descs(ctx->dev->vpdma, &ctx->desc_list);
+}
+
+static void ds1_uv_error(struct vpe_ctx *ctx)
+{
+	dev_warn(ctx->dev->v4l2_dev.dev,
+		"received downsampler error interrupt\n");
+}
+
+static irqreturn_t vpe_irq(int irq_vpe, void *data)
+{
+	struct vpe_dev *dev = (struct vpe_dev *)data;
+	struct vpe_ctx *ctx;
+	struct vb2_buffer *s_vb, *d_vb;
+	struct v4l2_buffer *s_buf, *d_buf;
+	unsigned long flags;
+	u32 irqst0, irqst1;
+
+	irqst0 = read_reg(dev, VPE_INT0_STATUS0);
+	if (irqst0) {
+		write_reg(dev, VPE_INT0_STATUS0_CLR, irqst0);
+		vpe_dbg(dev, "INT0_STATUS0 = 0x%08x\n", irqst0);
+	}
+
+	irqst1 = read_reg(dev, VPE_INT0_STATUS1);
+	if (irqst1) {
+		write_reg(dev, VPE_INT0_STATUS1_CLR, irqst1);
+		vpe_dbg(dev, "INT0_STATUS1 = 0x%08x\n", irqst1);
+	}
+
+	ctx = v4l2_m2m_get_curr_priv(dev->m2m_dev);
+	if (!ctx) {
+		vpe_err(dev, "instance released before end of transaction\n");
+		goto handled;
+	}
+
+	if (irqst1 & VPE_DS1_UV_ERROR_INT) {
+		irqst1 &= ~VPE_DS1_UV_ERROR_INT;
+		ds1_uv_error(ctx);
+	}
+
+	if (irqst0) {
+		if (irqst0 & VPE_INT0_LIST0_COMPLETE)
+			vpdma_clear_list_stat(ctx->dev->vpdma);
+
+		irqst0 &= ~(VPE_INT0_LIST0_COMPLETE);
+	}
+
+	if (irqst0 | irqst1) {
+		dev_warn(dev->v4l2_dev.dev, "Unexpected interrupt: "
+			"INT0_STATUS0 = 0x%08x, INT0_STATUS1 = 0x%08x\n",
+			irqst0, irqst1);
+	}
+
+	disable_irqs(ctx);
+
+	vpdma_unmap_desc_buf(dev->vpdma, &ctx->desc_list.buf);
+	vpdma_unmap_desc_buf(dev->vpdma, &ctx->mmr_adb);
+
+	vpdma_reset_desc_list(&ctx->desc_list);
+
+	if (ctx->aborting)
+		goto finished;
+
+	s_vb = ctx->src_vb;
+	d_vb = ctx->dst_vb;
+	s_buf = &s_vb->v4l2_buf;
+	d_buf = &d_vb->v4l2_buf;
+
+	d_buf->timestamp = s_buf->timestamp;
+	if (s_buf->flags & V4L2_BUF_FLAG_TIMECODE) {
+		d_buf->flags |= V4L2_BUF_FLAG_TIMECODE;
+		d_buf->timecode = s_buf->timecode;
+	}
+
+	d_buf->sequence = ctx->sequence;
+
+	ctx->sequence++;
+
+	spin_lock_irqsave(&dev->lock, flags);
+	v4l2_m2m_buf_done(s_vb, VB2_BUF_STATE_DONE);
+	v4l2_m2m_buf_done(d_vb, VB2_BUF_STATE_DONE);
+	spin_unlock_irqrestore(&dev->lock, flags);
+
+	ctx->bufs_completed++;
+	if (ctx->bufs_completed < ctx->bufs_per_job) {
+		device_run(ctx);
+		goto handled;
+	}
+
+finished:
+	vpe_dbg(ctx->dev, "finishing transaction\n");
+	ctx->bufs_completed = 0;
+	v4l2_m2m_job_finish(dev->m2m_dev, ctx->m2m_ctx);
+handled:
+	return IRQ_HANDLED;
+}
+
+/*
+ * video ioctls
+ */
+static int vpe_querycap(struct file *file, void *priv,
+			struct v4l2_capability *cap)
+{
+	strncpy(cap->driver, VPE_MODULE_NAME, sizeof(cap->driver) - 1);
+	strncpy(cap->card, VPE_MODULE_NAME, sizeof(cap->card) - 1);
+	strlcpy(cap->bus_info, VPE_MODULE_NAME, sizeof(cap->bus_info));
+	cap->device_caps  = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
+	cap->capabilities = cap->device_caps | V4L2_CAP_DEVICE_CAPS;
+	return 0;
+}
+
+static int __enum_fmt(struct v4l2_fmtdesc *f, u32 type)
+{
+	int i, index;
+	struct vpe_fmt *fmt = NULL;
+
+	index = 0;
+	for (i = 0; i < ARRAY_SIZE(vpe_formats); ++i) {
+		if (vpe_formats[i].types & type) {
+			if (index == f->index) {
+				fmt = &vpe_formats[i];
+				break;
+			}
+			index++;
+		}
+	}
+
+	if (!fmt)
+		return -EINVAL;
+
+	strncpy(f->description, fmt->name, sizeof(f->description) - 1);
+	f->pixelformat = fmt->fourcc;
+	return 0;
+}
+
+static int vpe_enum_fmt(struct file *file, void *priv,
+				struct v4l2_fmtdesc *f)
+{
+	if (V4L2_TYPE_IS_OUTPUT(f->type))
+		return __enum_fmt(f, VPE_FMT_TYPE_OUTPUT);
+
+	return __enum_fmt(f, VPE_FMT_TYPE_CAPTURE);
+}
+
+static int vpe_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
+{
+	struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
+	struct vpe_ctx *ctx = file2ctx(file);
+	struct vb2_queue *vq;
+	struct vpe_q_data *q_data;
+	int i;
+
+	vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
+	if (!vq)
+		return -EINVAL;
+
+	q_data = get_q_data(ctx, f->type);
+
+	pix->width = q_data->width;
+	pix->height = q_data->height;
+	pix->pixelformat = q_data->fmt->fourcc;
+
+	if (V4L2_TYPE_IS_OUTPUT(f->type)) {
+		pix->colorspace = q_data->colorspace;
+	} else {
+		struct vpe_q_data *s_q_data;
+
+		/* get colorspace from the source queue */
+		s_q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
+
+		pix->colorspace = s_q_data->colorspace;
+	}
+
+	pix->num_planes = q_data->fmt->coplanar ? 2 : 1;
+
+	for (i = 0; i < pix->num_planes; i++) {
+		pix->plane_fmt[i].bytesperline = q_data->bytesperline[i];
+		pix->plane_fmt[i].sizeimage = q_data->sizeimage[i];
+	}
+
+	return 0;
+}
+
+static int __vpe_try_fmt(struct vpe_ctx *ctx, struct v4l2_format *f,
+		       struct vpe_fmt *fmt, int type)
+{
+	struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
+	struct v4l2_plane_pix_format *plane_fmt;
+	int i;
+
+	if (!fmt || !(fmt->types & type)) {
+		vpe_err(ctx->dev, "Fourcc format (0x%08x) invalid.\n",
+			pix->pixelformat);
+		return -EINVAL;
+	}
+
+	pix->field = V4L2_FIELD_NONE;
+
+	v4l_bound_align_image(&pix->width, MIN_W, MAX_W, W_ALIGN,
+			      &pix->height, MIN_H, MAX_H, H_ALIGN,
+			      S_ALIGN);
+
+	pix->num_planes = fmt->coplanar ? 2 : 1;
+	pix->pixelformat = fmt->fourcc;
+
+	if (type == VPE_FMT_TYPE_CAPTURE) {
+		struct vpe_q_data *s_q_data;
+
+		/* get colorspace from the source queue */
+		s_q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
+
+		pix->colorspace = s_q_data->colorspace;
+	} else {
+		if (!pix->colorspace)
+			pix->colorspace = V4L2_COLORSPACE_SMPTE240M;
+	}
+
+	for (i = 0; i < pix->num_planes; i++) {
+		int depth;
+
+		plane_fmt = &pix->plane_fmt[i];
+		depth = fmt->vpdma_fmt[i]->depth;
+
+		if (i == VPE_LUMA)
+			plane_fmt->bytesperline =
+					round_up((pix->width * depth) >> 3,
+						1 << L_ALIGN);
+		else
+			plane_fmt->bytesperline = pix->width;
+
+		plane_fmt->sizeimage =
+				(pix->height * pix->width * depth) >> 3;
+	}
+
+	return 0;
+}
+
+static int vpe_try_fmt(struct file *file, void *priv, struct v4l2_format *f)
+{
+	struct vpe_ctx *ctx = file2ctx(file);
+	struct vpe_fmt *fmt = find_format(f);
+
+	if (V4L2_TYPE_IS_OUTPUT(f->type))
+		return __vpe_try_fmt(ctx, f, fmt, VPE_FMT_TYPE_OUTPUT);
+	else
+		return __vpe_try_fmt(ctx, f, fmt, VPE_FMT_TYPE_CAPTURE);
+}
+
+static int __vpe_s_fmt(struct vpe_ctx *ctx, struct v4l2_format *f)
+{
+	struct v4l2_pix_format_mplane *pix = &f->fmt.pix_mp;
+	struct v4l2_plane_pix_format *plane_fmt;
+	struct vpe_q_data *q_data;
+	struct vb2_queue *vq;
+	int i;
+
+	vq = v4l2_m2m_get_vq(ctx->m2m_ctx, f->type);
+	if (!vq)
+		return -EINVAL;
+
+	if (vb2_is_busy(vq)) {
+		vpe_err(ctx->dev, "queue busy\n");
+		return -EBUSY;
+	}
+
+	q_data = get_q_data(ctx, f->type);
+	if (!q_data)
+		return -EINVAL;
+
+	q_data->fmt		= find_format(f);
+	q_data->width		= pix->width;
+	q_data->height		= pix->height;
+	q_data->colorspace	= pix->colorspace;
+
+	for (i = 0; i < pix->num_planes; i++) {
+		plane_fmt = &pix->plane_fmt[i];
+
+		q_data->bytesperline[i]	= plane_fmt->bytesperline;
+		q_data->sizeimage[i]	= plane_fmt->sizeimage;
+	}
+
+	q_data->c_rect.left	= 0;
+	q_data->c_rect.top	= 0;
+	q_data->c_rect.width	= q_data->width;
+	q_data->c_rect.height	= q_data->height;
+
+	vpe_dbg(ctx->dev, "Setting format for type %d, wxh: %dx%d, fmt: %d bpl_y %d",
+		f->type, q_data->width, q_data->height, q_data->fmt->fourcc,
+		q_data->bytesperline[VPE_LUMA]);
+	if (q_data->fmt->coplanar)
+		vpe_dbg(ctx->dev, " bpl_uv %d\n",
+			q_data->bytesperline[VPE_CHROMA]);
+
+	return 0;
+}
+
+static int vpe_s_fmt(struct file *file, void *priv, struct v4l2_format *f)
+{
+	int ret;
+	struct vpe_ctx *ctx = file2ctx(file);
+
+	ret = vpe_try_fmt(file, priv, f);
+	if (ret)
+		return ret;
+
+	ret = __vpe_s_fmt(ctx, f);
+	if (ret)
+		return ret;
+
+	if (V4L2_TYPE_IS_OUTPUT(f->type))
+		set_src_registers(ctx);
+	else
+		set_dst_registers(ctx);
+
+	return set_srcdst_params(ctx);
+}
+
+static int vpe_reqbufs(struct file *file, void *priv,
+		       struct v4l2_requestbuffers *reqbufs)
+{
+	struct vpe_ctx *ctx = file2ctx(file);
+
+	return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
+}
+
+static int vpe_querybuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+{
+	struct vpe_ctx *ctx = file2ctx(file);
+
+	return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
+}
+
+static int vpe_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+{
+	struct vpe_ctx *ctx = file2ctx(file);
+
+	return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
+}
+
+static int vpe_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+{
+	struct vpe_ctx *ctx = file2ctx(file);
+
+	return v4l2_m2m_dqbuf(file, ctx->m2m_ctx, buf);
+}
+
+static int vpe_streamon(struct file *file, void *priv, enum v4l2_buf_type type)
+{
+	struct vpe_ctx *ctx = file2ctx(file);
+
+	return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
+}
+
+static int vpe_streamoff(struct file *file, void *priv, enum v4l2_buf_type type)
+{
+	struct vpe_ctx *ctx = file2ctx(file);
+
+	vpe_dump_regs(ctx->dev);
+	vpdma_dump_regs(ctx->dev->vpdma);
+
+	return v4l2_m2m_streamoff(file, ctx->m2m_ctx, type);
+}
+
+/*
+ * defines number of buffers/frames a context can process with VPE before
+ * switching to a different context. default value is 1 buffer per context
+ */
+#define V4L2_CID_VPE_BUFS_PER_JOB		(V4L2_CID_USER_TI_VPE_BASE + 0)
+
+static int vpe_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+	struct vpe_ctx *ctx =
+		container_of(ctrl->handler, struct vpe_ctx, hdl);
+
+	switch (ctrl->id) {
+	case V4L2_CID_VPE_BUFS_PER_JOB:
+		ctx->bufs_per_job = ctrl->val;
+		break;
+
+	default:
+		vpe_err(ctx->dev, "Invalid control\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static const struct v4l2_ctrl_ops vpe_ctrl_ops = {
+	.s_ctrl = vpe_s_ctrl,
+};
+
+static const struct v4l2_ioctl_ops vpe_ioctl_ops = {
+	.vidioc_querycap	= vpe_querycap,
+
+	.vidioc_enum_fmt_vid_cap_mplane = vpe_enum_fmt,
+	.vidioc_g_fmt_vid_cap_mplane	= vpe_g_fmt,
+	.vidioc_try_fmt_vid_cap_mplane	= vpe_try_fmt,
+	.vidioc_s_fmt_vid_cap_mplane	= vpe_s_fmt,
+
+	.vidioc_enum_fmt_vid_out_mplane = vpe_enum_fmt,
+	.vidioc_g_fmt_vid_out_mplane	= vpe_g_fmt,
+	.vidioc_try_fmt_vid_out_mplane	= vpe_try_fmt,
+	.vidioc_s_fmt_vid_out_mplane	= vpe_s_fmt,
+
+	.vidioc_reqbufs		= vpe_reqbufs,
+	.vidioc_querybuf	= vpe_querybuf,
+
+	.vidioc_qbuf		= vpe_qbuf,
+	.vidioc_dqbuf		= vpe_dqbuf,
+
+	.vidioc_streamon	= vpe_streamon,
+	.vidioc_streamoff	= vpe_streamoff,
+	.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
+	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+};
+
+/*
+ * Queue operations
+ */
+static int vpe_queue_setup(struct vb2_queue *vq,
+			   const struct v4l2_format *fmt,
+			   unsigned int *nbuffers, unsigned int *nplanes,
+			   unsigned int sizes[], void *alloc_ctxs[])
+{
+	int i;
+	struct vpe_ctx *ctx = vb2_get_drv_priv(vq);
+	struct vpe_q_data *q_data;
+
+	q_data = get_q_data(ctx, vq->type);
+
+	*nplanes = q_data->fmt->coplanar ? 2 : 1;
+
+	for (i = 0; i < *nplanes; i++) {
+		sizes[i] = q_data->sizeimage[i];
+		alloc_ctxs[i] = ctx->dev->alloc_ctx;
+	}
+
+	vpe_dbg(ctx->dev, "get %d buffer(s) of size %d", *nbuffers,
+		sizes[VPE_LUMA]);
+	if (q_data->fmt->coplanar)
+		vpe_dbg(ctx->dev, " and %d\n", sizes[VPE_CHROMA]);
+
+	return 0;
+}
+
+static int vpe_buf_prepare(struct vb2_buffer *vb)
+{
+	struct vpe_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+	struct vpe_q_data *q_data;
+	int i, num_planes;
+
+	vpe_dbg(ctx->dev, "type: %d\n", vb->vb2_queue->type);
+
+	q_data = get_q_data(ctx, vb->vb2_queue->type);
+	num_planes = q_data->fmt->coplanar ? 2 : 1;
+
+	for (i = 0; i < num_planes; i++) {
+		if (vb2_plane_size(vb, i) < q_data->sizeimage[i]) {
+			vpe_err(ctx->dev,
+				"data will not fit into plane (%lu < %lu)\n",
+				vb2_plane_size(vb, i),
+				(long) q_data->sizeimage[i]);
+			return -EINVAL;
+		}
+	}
+
+	for (i = 0; i < num_planes; i++)
+		vb2_set_plane_payload(vb, i, q_data->sizeimage[i]);
+
+	return 0;
+}
+
+static void vpe_buf_queue(struct vb2_buffer *vb)
+{
+	struct vpe_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+	v4l2_m2m_buf_queue(ctx->m2m_ctx, vb);
+}
+
+static void vpe_wait_prepare(struct vb2_queue *q)
+{
+	struct vpe_ctx *ctx = vb2_get_drv_priv(q);
+	vpe_unlock(ctx);
+}
+
+static void vpe_wait_finish(struct vb2_queue *q)
+{
+	struct vpe_ctx *ctx = vb2_get_drv_priv(q);
+	vpe_lock(ctx);
+}
+
+static struct vb2_ops vpe_qops = {
+	.queue_setup	 = vpe_queue_setup,
+	.buf_prepare	 = vpe_buf_prepare,
+	.buf_queue	 = vpe_buf_queue,
+	.wait_prepare	 = vpe_wait_prepare,
+	.wait_finish	 = vpe_wait_finish,
+};
+
+static int queue_init(void *priv, struct vb2_queue *src_vq,
+		      struct vb2_queue *dst_vq)
+{
+	struct vpe_ctx *ctx = priv;
+	int ret;
+
+	memset(src_vq, 0, sizeof(*src_vq));
+	src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+	src_vq->io_modes = VB2_MMAP;
+	src_vq->drv_priv = ctx;
+	src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+	src_vq->ops = &vpe_qops;
+	src_vq->mem_ops = &vb2_dma_contig_memops;
+	src_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+
+	ret = vb2_queue_init(src_vq);
+	if (ret)
+		return ret;
+
+	memset(dst_vq, 0, sizeof(*dst_vq));
+	dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+	dst_vq->io_modes = VB2_MMAP;
+	dst_vq->drv_priv = ctx;
+	dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+	dst_vq->ops = &vpe_qops;
+	dst_vq->mem_ops = &vb2_dma_contig_memops;
+	dst_vq->timestamp_type = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+
+	return vb2_queue_init(dst_vq);
+}
+
+static const struct v4l2_ctrl_config vpe_bufs_per_job = {
+	.ops = &vpe_ctrl_ops,
+	.id = V4L2_CID_VPE_BUFS_PER_JOB,
+	.name = "Buffers Per Transaction",
+	.type = V4L2_CTRL_TYPE_INTEGER,
+	.def = VPE_DEF_BUFS_PER_JOB,
+	.min = 1,
+	.max = VIDEO_MAX_FRAME,
+	.step = 1,
+};
+
+/*
+ * File operations
+ */
+static int vpe_open(struct file *file)
+{
+	struct vpe_dev *dev = video_drvdata(file);
+	struct vpe_ctx *ctx = NULL;
+	struct vpe_q_data *s_q_data;
+	struct v4l2_ctrl_handler *hdl;
+	int ret;
+
+	vpe_dbg(dev, "vpe_open\n");
+
+	if (!dev->vpdma->ready) {
+		vpe_err(dev, "vpdma firmware not loaded\n");
+		return -ENODEV;
+	}
+
+	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+	if (!ctx)
+		return -ENOMEM;
+
+	ctx->dev = dev;
+
+	if (mutex_lock_interruptible(&dev->dev_mutex)) {
+		ret = -ERESTARTSYS;
+		goto free_ctx;
+	}
+
+	ret = vpdma_create_desc_list(&ctx->desc_list, VPE_DESC_LIST_SIZE,
+			VPDMA_LIST_TYPE_NORMAL);
+	if (ret != 0)
+		goto unlock;
+
+	ret = vpdma_alloc_desc_buf(&ctx->mmr_adb, sizeof(struct vpe_mmr_adb));
+	if (ret != 0)
+		goto free_desc_list;
+
+	init_adb_hdrs(ctx);
+
+	v4l2_fh_init(&ctx->fh, video_devdata(file));
+	file->private_data = &ctx->fh;
+
+	hdl = &ctx->hdl;
+	v4l2_ctrl_handler_init(hdl, 1);
+	v4l2_ctrl_new_custom(hdl, &vpe_bufs_per_job, NULL);
+	if (hdl->error) {
+		ret = hdl->error;
+		goto exit_fh;
+	}
+	ctx->fh.ctrl_handler = hdl;
+	v4l2_ctrl_handler_setup(hdl);
+
+	s_q_data = &ctx->q_data[Q_DATA_SRC];
+	s_q_data->fmt = &vpe_formats[2];
+	s_q_data->width = 1920;
+	s_q_data->height = 1080;
+	s_q_data->sizeimage[VPE_LUMA] = (s_q_data->width * s_q_data->height *
+			s_q_data->fmt->vpdma_fmt[VPE_LUMA]->depth) >> 3;
+	s_q_data->colorspace = V4L2_COLORSPACE_SMPTE240M;
+	s_q_data->c_rect.left = 0;
+	s_q_data->c_rect.top = 0;
+	s_q_data->c_rect.width = s_q_data->width;
+	s_q_data->c_rect.height = s_q_data->height;
+	s_q_data->flags = 0;
+
+	ctx->q_data[Q_DATA_DST] = *s_q_data;
+
+	set_src_registers(ctx);
+	set_dst_registers(ctx);
+	ret = set_srcdst_params(ctx);
+	if (ret)
+		goto exit_fh;
+
+	ctx->m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, &queue_init);
+
+	if (IS_ERR(ctx->m2m_ctx)) {
+		ret = PTR_ERR(ctx->m2m_ctx);
+		goto exit_fh;
+	}
+
+	v4l2_fh_add(&ctx->fh);
+
+	/*
+	 * for now, just report the creation of the first instance, we can later
+	 * optimize the driver to enable or disable clocks when the first
+	 * instance is created or the last instance released
+	 */
+	if (atomic_inc_return(&dev->num_instances) == 1)
+		vpe_dbg(dev, "first instance created\n");
+
+	ctx->bufs_per_job = VPE_DEF_BUFS_PER_JOB;
+
+	ctx->load_mmrs = true;
+
+	vpe_dbg(dev, "created instance %p, m2m_ctx: %p\n",
+		ctx, ctx->m2m_ctx);
+
+	mutex_unlock(&dev->dev_mutex);
+
+	return 0;
+exit_fh:
+	v4l2_ctrl_handler_free(hdl);
+	v4l2_fh_exit(&ctx->fh);
+	vpdma_free_desc_buf(&ctx->mmr_adb);
+free_desc_list:
+	vpdma_free_desc_list(&ctx->desc_list);
+unlock:
+	mutex_unlock(&dev->dev_mutex);
+free_ctx:
+	kfree(ctx);
+	return ret;
+}
+
+static int vpe_release(struct file *file)
+{
+	struct vpe_dev *dev = video_drvdata(file);
+	struct vpe_ctx *ctx = file2ctx(file);
+
+	vpe_dbg(dev, "releasing instance %p\n", ctx);
+
+	mutex_lock(&dev->dev_mutex);
+	vpdma_free_desc_list(&ctx->desc_list);
+	vpdma_free_desc_buf(&ctx->mmr_adb);
+
+	v4l2_fh_del(&ctx->fh);
+	v4l2_fh_exit(&ctx->fh);
+	v4l2_ctrl_handler_free(&ctx->hdl);
+	v4l2_m2m_ctx_release(ctx->m2m_ctx);
+
+	kfree(ctx);
+
+	/*
+	 * for now, just report the release of the last instance, we can later
+	 * optimize the driver to enable or disable clocks when the first
+	 * instance is created or the last instance released
+	 */
+	if (atomic_dec_return(&dev->num_instances) == 0)
+		vpe_dbg(dev, "last instance released\n");
+
+	mutex_unlock(&dev->dev_mutex);
+
+	return 0;
+}
+
+static unsigned int vpe_poll(struct file *file,
+			     struct poll_table_struct *wait)
+{
+	struct vpe_ctx *ctx = file2ctx(file);
+	struct vpe_dev *dev = ctx->dev;
+	int ret;
+
+	mutex_lock(&dev->dev_mutex);
+	ret = v4l2_m2m_poll(file, ctx->m2m_ctx, wait);
+	mutex_unlock(&dev->dev_mutex);
+	return ret;
+}
+
+static int vpe_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	struct vpe_ctx *ctx = file2ctx(file);
+	struct vpe_dev *dev = ctx->dev;
+	int ret;
+
+	if (mutex_lock_interruptible(&dev->dev_mutex))
+		return -ERESTARTSYS;
+	ret = v4l2_m2m_mmap(file, ctx->m2m_ctx, vma);
+	mutex_unlock(&dev->dev_mutex);
+	return ret;
+}
+
+static const struct v4l2_file_operations vpe_fops = {
+	.owner		= THIS_MODULE,
+	.open		= vpe_open,
+	.release	= vpe_release,
+	.poll		= vpe_poll,
+	.unlocked_ioctl	= video_ioctl2,
+	.mmap		= vpe_mmap,
+};
+
+static struct video_device vpe_videodev = {
+	.name		= VPE_MODULE_NAME,
+	.fops		= &vpe_fops,
+	.ioctl_ops	= &vpe_ioctl_ops,
+	.minor		= -1,
+	.release	= video_device_release,
+	.vfl_dir	= VFL_DIR_M2M,
+};
+
+static struct v4l2_m2m_ops m2m_ops = {
+	.device_run	= device_run,
+	.job_ready	= job_ready,
+	.job_abort	= job_abort,
+	.lock		= vpe_lock,
+	.unlock		= vpe_unlock,
+};
+
+static int vpe_runtime_get(struct platform_device *pdev)
+{
+	int r;
+
+	dev_dbg(&pdev->dev, "vpe_runtime_get\n");
+
+	r = pm_runtime_get_sync(&pdev->dev);
+	WARN_ON(r < 0);
+	return r < 0 ? r : 0;
+}
+
+static void vpe_runtime_put(struct platform_device *pdev)
+{
+
+	int r;
+
+	dev_dbg(&pdev->dev, "vpe_runtime_put\n");
+
+	r = pm_runtime_put_sync(&pdev->dev);
+	WARN_ON(r < 0 && r != -ENOSYS);
+}
+
+static int vpe_probe(struct platform_device *pdev)
+{
+	struct vpe_dev *dev;
+	struct video_device *vfd;
+	struct resource *res;
+	int ret, irq, func;
+
+	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
+	if (IS_ERR(dev))
+		return PTR_ERR(dev);
+
+	spin_lock_init(&dev->lock);
+
+	ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
+	if (ret)
+		return ret;
+
+	atomic_set(&dev->num_instances, 0);
+	mutex_init(&dev->dev_mutex);
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "vpe_top");
+	/*
+	 * HACK: we get resource info from device tree in the form of a list of
+	 * VPE sub blocks, the driver currently uses only the base of vpe_top
+	 * for register access, the driver should be changed later to access
+	 * registers based on the sub block base addresses
+	 */
+	dev->base = devm_ioremap(&pdev->dev, res->start, SZ_32K);
+	if (IS_ERR(dev->base)) {
+		ret = PTR_ERR(dev->base);
+		goto v4l2_dev_unreg;
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	ret = devm_request_irq(&pdev->dev, irq, vpe_irq, 0, VPE_MODULE_NAME,
+			dev);
+	if (ret)
+		goto v4l2_dev_unreg;
+
+	platform_set_drvdata(pdev, dev);
+
+	dev->alloc_ctx = vb2_dma_contig_init_ctx(&pdev->dev);
+	if (IS_ERR(dev->alloc_ctx)) {
+		vpe_err(dev, "Failed to alloc vb2 context\n");
+		ret = PTR_ERR(dev->alloc_ctx);
+		goto v4l2_dev_unreg;
+	}
+
+	dev->m2m_dev = v4l2_m2m_init(&m2m_ops);
+	if (IS_ERR(dev->m2m_dev)) {
+		vpe_err(dev, "Failed to init mem2mem device\n");
+		ret = PTR_ERR(dev->m2m_dev);
+		goto rel_ctx;
+	}
+
+	pm_runtime_enable(&pdev->dev);
+
+	ret = vpe_runtime_get(pdev);
+	if (ret)
+		goto rel_m2m;
+
+	/* Perform clk enable followed by reset */
+	vpe_set_clock_enable(dev, 1);
+
+	vpe_top_reset(dev);
+
+	func = read_field_reg(dev, VPE_PID, VPE_PID_FUNC_MASK,
+		VPE_PID_FUNC_SHIFT);
+	vpe_dbg(dev, "VPE PID function %x\n", func);
+
+	vpe_top_vpdma_reset(dev);
+
+	dev->vpdma = vpdma_create(pdev);
+	if (IS_ERR(dev->vpdma))
+		goto runtime_put;
+
+	vfd = &dev->vfd;
+	*vfd = vpe_videodev;
+	vfd->lock = &dev->dev_mutex;
+	vfd->v4l2_dev = &dev->v4l2_dev;
+
+	ret = video_register_device(vfd, VFL_TYPE_GRABBER, 0);
+	if (ret) {
+		vpe_err(dev, "Failed to register video device\n");
+		goto runtime_put;
+	}
+
+	video_set_drvdata(vfd, dev);
+	snprintf(vfd->name, sizeof(vfd->name), "%s", vpe_videodev.name);
+	dev_info(dev->v4l2_dev.dev, "Device registered as /dev/video%d\n",
+		vfd->num);
+
+	return 0;
+
+runtime_put:
+	vpe_runtime_put(pdev);
+rel_m2m:
+	pm_runtime_disable(&pdev->dev);
+	v4l2_m2m_release(dev->m2m_dev);
+rel_ctx:
+	vb2_dma_contig_cleanup_ctx(dev->alloc_ctx);
+v4l2_dev_unreg:
+	v4l2_device_unregister(&dev->v4l2_dev);
+
+	return ret;
+}
+
+static int vpe_remove(struct platform_device *pdev)
+{
+	struct vpe_dev *dev =
+		(struct vpe_dev *) platform_get_drvdata(pdev);
+
+	v4l2_info(&dev->v4l2_dev, "Removing " VPE_MODULE_NAME);
+
+	v4l2_m2m_release(dev->m2m_dev);
+	video_unregister_device(&dev->vfd);
+	v4l2_device_unregister(&dev->v4l2_dev);
+	vb2_dma_contig_cleanup_ctx(dev->alloc_ctx);
+
+	vpe_set_clock_enable(dev, 0);
+	vpe_runtime_put(pdev);
+	pm_runtime_disable(&pdev->dev);
+
+	return 0;
+}
+
+#if defined(CONFIG_OF)
+static const struct of_device_id vpe_of_match[] = {
+	{
+		.compatible = "ti,vpe",
+	},
+	{},
+};
+#else
+#define vpe_of_match NULL
+#endif
+
+static struct platform_driver vpe_pdrv = {
+	.probe		= vpe_probe,
+	.remove		= vpe_remove,
+	.driver		= {
+		.name	= VPE_MODULE_NAME,
+		.owner	= THIS_MODULE,
+		.of_match_table = vpe_of_match,
+	},
+};
+
+static void __exit vpe_exit(void)
+{
+	platform_driver_unregister(&vpe_pdrv);
+}
+
+static int __init vpe_init(void)
+{
+	return platform_driver_register(&vpe_pdrv);
+}
+
+module_init(vpe_init);
+module_exit(vpe_exit);
+
+MODULE_DESCRIPTION("TI VPE driver");
+MODULE_AUTHOR("Dale Farnsworth, <dale@farnsworth.org>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/platform/ti-vpe/vpe_regs.h b/drivers/media/platform/ti-vpe/vpe_regs.h
new file mode 100644
index 000000000000..ed214e828398
--- /dev/null
+++ b/drivers/media/platform/ti-vpe/vpe_regs.h
@@ -0,0 +1,496 @@
+/*
+ * Copyright (c) 2013 Texas Instruments Inc.
+ *
+ * David Griego, <dagriego@biglakesoftware.com>
+ * Dale Farnsworth, <dale@farnsworth.org>
+ * Archit Taneja, <archit@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#ifndef __TI_VPE_REGS_H
+#define __TI_VPE_REGS_H
+
+/* VPE register offsets and field selectors */
+
+/* VPE top level regs */
+#define VPE_PID				0x0000
+#define VPE_PID_MINOR_MASK		0x3f
+#define VPE_PID_MINOR_SHIFT		0
+#define VPE_PID_CUSTOM_MASK		0x03
+#define VPE_PID_CUSTOM_SHIFT		6
+#define VPE_PID_MAJOR_MASK		0x07
+#define VPE_PID_MAJOR_SHIFT		8
+#define VPE_PID_RTL_MASK		0x1f
+#define VPE_PID_RTL_SHIFT		11
+#define VPE_PID_FUNC_MASK		0xfff
+#define VPE_PID_FUNC_SHIFT		16
+#define VPE_PID_SCHEME_MASK		0x03
+#define VPE_PID_SCHEME_SHIFT		30
+
+#define VPE_SYSCONFIG			0x0010
+#define VPE_SYSCONFIG_IDLE_MASK		0x03
+#define VPE_SYSCONFIG_IDLE_SHIFT	2
+#define VPE_SYSCONFIG_STANDBY_MASK	0x03
+#define VPE_SYSCONFIG_STANDBY_SHIFT	4
+#define VPE_FORCE_IDLE_MODE		0
+#define VPE_NO_IDLE_MODE		1
+#define VPE_SMART_IDLE_MODE		2
+#define VPE_SMART_IDLE_WAKEUP_MODE	3
+#define VPE_FORCE_STANDBY_MODE		0
+#define VPE_NO_STANDBY_MODE		1
+#define VPE_SMART_STANDBY_MODE		2
+#define VPE_SMART_STANDBY_WAKEUP_MODE	3
+
+#define VPE_INT0_STATUS0_RAW_SET	0x0020
+#define VPE_INT0_STATUS0_RAW		VPE_INT0_STATUS0_RAW_SET
+#define VPE_INT0_STATUS0_CLR		0x0028
+#define VPE_INT0_STATUS0		VPE_INT0_STATUS0_CLR
+#define VPE_INT0_ENABLE0_SET		0x0030
+#define VPE_INT0_ENABLE0		VPE_INT0_ENABLE0_SET
+#define VPE_INT0_ENABLE0_CLR		0x0038
+#define VPE_INT0_LIST0_COMPLETE		(1 << 0)
+#define VPE_INT0_LIST0_NOTIFY		(1 << 1)
+#define VPE_INT0_LIST1_COMPLETE		(1 << 2)
+#define VPE_INT0_LIST1_NOTIFY		(1 << 3)
+#define VPE_INT0_LIST2_COMPLETE		(1 << 4)
+#define VPE_INT0_LIST2_NOTIFY		(1 << 5)
+#define VPE_INT0_LIST3_COMPLETE		(1 << 6)
+#define VPE_INT0_LIST3_NOTIFY		(1 << 7)
+#define VPE_INT0_LIST4_COMPLETE		(1 << 8)
+#define VPE_INT0_LIST4_NOTIFY		(1 << 9)
+#define VPE_INT0_LIST5_COMPLETE		(1 << 10)
+#define VPE_INT0_LIST5_NOTIFY		(1 << 11)
+#define VPE_INT0_LIST6_COMPLETE		(1 << 12)
+#define VPE_INT0_LIST6_NOTIFY		(1 << 13)
+#define VPE_INT0_LIST7_COMPLETE		(1 << 14)
+#define VPE_INT0_LIST7_NOTIFY		(1 << 15)
+#define VPE_INT0_DESCRIPTOR		(1 << 16)
+#define VPE_DEI_FMD_INT			(1 << 18)
+
+#define VPE_INT0_STATUS1_RAW_SET	0x0024
+#define VPE_INT0_STATUS1_RAW		VPE_INT0_STATUS1_RAW_SET
+#define VPE_INT0_STATUS1_CLR		0x002c
+#define VPE_INT0_STATUS1		VPE_INT0_STATUS1_CLR
+#define VPE_INT0_ENABLE1_SET		0x0034
+#define VPE_INT0_ENABLE1		VPE_INT0_ENABLE1_SET
+#define VPE_INT0_ENABLE1_CLR		0x003c
+#define VPE_INT0_CHANNEL_GROUP0		(1 << 0)
+#define VPE_INT0_CHANNEL_GROUP1		(1 << 1)
+#define VPE_INT0_CHANNEL_GROUP2		(1 << 2)
+#define VPE_INT0_CHANNEL_GROUP3		(1 << 3)
+#define VPE_INT0_CHANNEL_GROUP4		(1 << 4)
+#define VPE_INT0_CHANNEL_GROUP5		(1 << 5)
+#define VPE_INT0_CLIENT			(1 << 7)
+#define VPE_DEI_ERROR_INT		(1 << 16)
+#define VPE_DS1_UV_ERROR_INT		(1 << 22)
+
+#define VPE_INTC_EOI			0x00a0
+
+#define VPE_CLK_ENABLE			0x0100
+#define VPE_VPEDMA_CLK_ENABLE		(1 << 0)
+#define VPE_DATA_PATH_CLK_ENABLE	(1 << 1)
+
+#define VPE_CLK_RESET			0x0104
+#define VPE_VPDMA_CLK_RESET_MASK	0x1
+#define VPE_VPDMA_CLK_RESET_SHIFT	0
+#define VPE_DATA_PATH_CLK_RESET_MASK	0x1
+#define VPE_DATA_PATH_CLK_RESET_SHIFT	1
+#define VPE_MAIN_RESET_MASK		0x1
+#define VPE_MAIN_RESET_SHIFT		31
+
+#define VPE_CLK_FORMAT_SELECT		0x010c
+#define VPE_CSC_SRC_SELECT_MASK		0x03
+#define VPE_CSC_SRC_SELECT_SHIFT	0
+#define VPE_RGB_OUT_SELECT		(1 << 8)
+#define VPE_DS_SRC_SELECT_MASK		0x07
+#define VPE_DS_SRC_SELECT_SHIFT		9
+#define VPE_DS_BYPASS			(1 << 16)
+#define VPE_COLOR_SEPARATE_422		(1 << 18)
+
+#define VPE_DS_SRC_DEI_SCALER		(5 << VPE_DS_SRC_SELECT_SHIFT)
+#define VPE_CSC_SRC_DEI_SCALER		(3 << VPE_CSC_SRC_SELECT_SHIFT)
+
+#define VPE_CLK_RANGE_MAP		0x011c
+#define VPE_RANGE_RANGE_MAP_Y_MASK	0x07
+#define VPE_RANGE_RANGE_MAP_Y_SHIFT	0
+#define VPE_RANGE_RANGE_MAP_UV_MASK	0x07
+#define VPE_RANGE_RANGE_MAP_UV_SHIFT	3
+#define VPE_RANGE_MAP_ON		(1 << 6)
+#define VPE_RANGE_REDUCTION_ON		(1 << 28)
+
+/* VPE chrominance upsampler regs */
+#define VPE_US1_R0			0x0304
+#define VPE_US2_R0			0x0404
+#define VPE_US3_R0			0x0504
+#define VPE_US_C1_MASK			0x3fff
+#define VPE_US_C1_SHIFT			2
+#define VPE_US_C0_MASK			0x3fff
+#define VPE_US_C0_SHIFT			18
+#define VPE_US_MODE_MASK		0x03
+#define VPE_US_MODE_SHIFT		16
+#define VPE_ANCHOR_FID0_C1_MASK		0x3fff
+#define VPE_ANCHOR_FID0_C1_SHIFT	2
+#define VPE_ANCHOR_FID0_C0_MASK		0x3fff
+#define VPE_ANCHOR_FID0_C0_SHIFT	18
+
+#define VPE_US1_R1			0x0308
+#define VPE_US2_R1			0x0408
+#define VPE_US3_R1			0x0508
+#define VPE_ANCHOR_FID0_C3_MASK		0x3fff
+#define VPE_ANCHOR_FID0_C3_SHIFT	2
+#define VPE_ANCHOR_FID0_C2_MASK		0x3fff
+#define VPE_ANCHOR_FID0_C2_SHIFT	18
+
+#define VPE_US1_R2			0x030c
+#define VPE_US2_R2			0x040c
+#define VPE_US3_R2			0x050c
+#define VPE_INTERP_FID0_C1_MASK		0x3fff
+#define VPE_INTERP_FID0_C1_SHIFT	2
+#define VPE_INTERP_FID0_C0_MASK		0x3fff
+#define VPE_INTERP_FID0_C0_SHIFT	18
+
+#define VPE_US1_R3			0x0310
+#define VPE_US2_R3			0x0410
+#define VPE_US3_R3			0x0510
+#define VPE_INTERP_FID0_C3_MASK		0x3fff
+#define VPE_INTERP_FID0_C3_SHIFT	2
+#define VPE_INTERP_FID0_C2_MASK		0x3fff
+#define VPE_INTERP_FID0_C2_SHIFT	18
+
+#define VPE_US1_R4			0x0314
+#define VPE_US2_R4			0x0414
+#define VPE_US3_R4			0x0514
+#define VPE_ANCHOR_FID1_C1_MASK		0x3fff
+#define VPE_ANCHOR_FID1_C1_SHIFT	2
+#define VPE_ANCHOR_FID1_C0_MASK		0x3fff
+#define VPE_ANCHOR_FID1_C0_SHIFT	18
+
+#define VPE_US1_R5			0x0318
+#define VPE_US2_R5			0x0418
+#define VPE_US3_R5			0x0518
+#define VPE_ANCHOR_FID1_C3_MASK		0x3fff
+#define VPE_ANCHOR_FID1_C3_SHIFT	2
+#define VPE_ANCHOR_FID1_C2_MASK		0x3fff
+#define VPE_ANCHOR_FID1_C2_SHIFT	18
+
+#define VPE_US1_R6			0x031c
+#define VPE_US2_R6			0x041c
+#define VPE_US3_R6			0x051c
+#define VPE_INTERP_FID1_C1_MASK		0x3fff
+#define VPE_INTERP_FID1_C1_SHIFT	2
+#define VPE_INTERP_FID1_C0_MASK		0x3fff
+#define VPE_INTERP_FID1_C0_SHIFT	18
+
+#define VPE_US1_R7			0x0320
+#define VPE_US2_R7			0x0420
+#define VPE_US3_R7			0x0520
+#define VPE_INTERP_FID0_C3_MASK		0x3fff
+#define VPE_INTERP_FID0_C3_SHIFT	2
+#define VPE_INTERP_FID0_C2_MASK		0x3fff
+#define VPE_INTERP_FID0_C2_SHIFT	18
+
+/* VPE de-interlacer regs */
+#define VPE_DEI_FRAME_SIZE		0x0600
+#define VPE_DEI_WIDTH_MASK		0x07ff
+#define VPE_DEI_WIDTH_SHIFT		0
+#define VPE_DEI_HEIGHT_MASK		0x07ff
+#define VPE_DEI_HEIGHT_SHIFT		16
+#define VPE_DEI_INTERLACE_BYPASS	(1 << 29)
+#define VPE_DEI_FIELD_FLUSH		(1 << 30)
+#define VPE_DEI_PROGRESSIVE		(1 << 31)
+
+#define VPE_MDT_BYPASS			0x0604
+#define VPE_MDT_TEMPMAX_BYPASS		(1 << 0)
+#define VPE_MDT_SPATMAX_BYPASS		(1 << 1)
+
+#define VPE_MDT_SF_THRESHOLD		0x0608
+#define VPE_MDT_SF_SC_THR1_MASK		0xff
+#define VPE_MDT_SF_SC_THR1_SHIFT	0
+#define VPE_MDT_SF_SC_THR2_MASK		0xff
+#define VPE_MDT_SF_SC_THR2_SHIFT	0
+#define VPE_MDT_SF_SC_THR3_MASK		0xff
+#define VPE_MDT_SF_SC_THR3_SHIFT	0
+
+#define VPE_EDI_CONFIG			0x060c
+#define VPE_EDI_INP_MODE_MASK		0x03
+#define VPE_EDI_INP_MODE_SHIFT		0
+#define VPE_EDI_ENABLE_3D		(1 << 2)
+#define VPE_EDI_ENABLE_CHROMA_3D	(1 << 3)
+#define VPE_EDI_CHROMA3D_COR_THR_MASK	0xff
+#define VPE_EDI_CHROMA3D_COR_THR_SHIFT	8
+#define VPE_EDI_DIR_COR_LOWER_THR_MASK	0xff
+#define VPE_EDI_DIR_COR_LOWER_THR_SHIFT	16
+#define VPE_EDI_COR_SCALE_FACTOR_MASK	0xff
+#define VPE_EDI_COR_SCALE_FACTOR_SHIFT	23
+
+#define VPE_DEI_EDI_LUT_R0		0x0610
+#define VPE_EDI_LUT0_MASK		0x1f
+#define VPE_EDI_LUT0_SHIFT		0
+#define VPE_EDI_LUT1_MASK		0x1f
+#define VPE_EDI_LUT1_SHIFT		8
+#define VPE_EDI_LUT2_MASK		0x1f
+#define VPE_EDI_LUT2_SHIFT		16
+#define VPE_EDI_LUT3_MASK		0x1f
+#define VPE_EDI_LUT3_SHIFT		24
+
+#define VPE_DEI_EDI_LUT_R1		0x0614
+#define VPE_EDI_LUT0_MASK		0x1f
+#define VPE_EDI_LUT0_SHIFT		0
+#define VPE_EDI_LUT1_MASK		0x1f
+#define VPE_EDI_LUT1_SHIFT		8
+#define VPE_EDI_LUT2_MASK		0x1f
+#define VPE_EDI_LUT2_SHIFT		16
+#define VPE_EDI_LUT3_MASK		0x1f
+#define VPE_EDI_LUT3_SHIFT		24
+
+#define VPE_DEI_EDI_LUT_R2		0x0618
+#define VPE_EDI_LUT4_MASK		0x1f
+#define VPE_EDI_LUT4_SHIFT		0
+#define VPE_EDI_LUT5_MASK		0x1f
+#define VPE_EDI_LUT5_SHIFT		8
+#define VPE_EDI_LUT6_MASK		0x1f
+#define VPE_EDI_LUT6_SHIFT		16
+#define VPE_EDI_LUT7_MASK		0x1f
+#define VPE_EDI_LUT7_SHIFT		24
+
+#define VPE_DEI_EDI_LUT_R3		0x061c
+#define VPE_EDI_LUT8_MASK		0x1f
+#define VPE_EDI_LUT8_SHIFT		0
+#define VPE_EDI_LUT9_MASK		0x1f
+#define VPE_EDI_LUT9_SHIFT		8
+#define VPE_EDI_LUT10_MASK		0x1f
+#define VPE_EDI_LUT10_SHIFT		16
+#define VPE_EDI_LUT11_MASK		0x1f
+#define VPE_EDI_LUT11_SHIFT		24
+
+#define VPE_DEI_FMD_WINDOW_R0		0x0620
+#define VPE_FMD_WINDOW_MINX_MASK	0x07ff
+#define VPE_FMD_WINDOW_MINX_SHIFT	0
+#define VPE_FMD_WINDOW_MAXX_MASK	0x07ff
+#define VPE_FMD_WINDOW_MAXX_SHIFT	16
+#define VPE_FMD_WINDOW_ENABLE		(1 << 31)
+
+#define VPE_DEI_FMD_WINDOW_R1		0x0624
+#define VPE_FMD_WINDOW_MINY_MASK	0x07ff
+#define VPE_FMD_WINDOW_MINY_SHIFT	0
+#define VPE_FMD_WINDOW_MAXY_MASK	0x07ff
+#define VPE_FMD_WINDOW_MAXY_SHIFT	16
+
+#define VPE_DEI_FMD_CONTROL_R0		0x0628
+#define VPE_FMD_ENABLE			(1 << 0)
+#define VPE_FMD_LOCK			(1 << 1)
+#define VPE_FMD_JAM_DIR			(1 << 2)
+#define VPE_FMD_BED_ENABLE		(1 << 3)
+#define VPE_FMD_CAF_FIELD_THR_MASK	0xff
+#define VPE_FMD_CAF_FIELD_THR_SHIFT	16
+#define VPE_FMD_CAF_LINE_THR_MASK	0xff
+#define VPE_FMD_CAF_LINE_THR_SHIFT	24
+
+#define VPE_DEI_FMD_CONTROL_R1		0x062c
+#define VPE_FMD_CAF_THR_MASK		0x000fffff
+#define VPE_FMD_CAF_THR_SHIFT		0
+
+#define VPE_DEI_FMD_STATUS_R0		0x0630
+#define VPE_FMD_CAF_MASK		0x000fffff
+#define VPE_FMD_CAF_SHIFT		0
+#define VPE_FMD_RESET			(1 << 24)
+
+#define VPE_DEI_FMD_STATUS_R1		0x0634
+#define VPE_FMD_FIELD_DIFF_MASK		0x0fffffff
+#define VPE_FMD_FIELD_DIFF_SHIFT	0
+
+#define VPE_DEI_FMD_STATUS_R2		0x0638
+#define VPE_FMD_FRAME_DIFF_MASK		0x000fffff
+#define VPE_FMD_FRAME_DIFF_SHIFT	0
+
+/* VPE scaler regs */
+#define VPE_SC_MP_SC0			0x0700
+#define VPE_INTERLACE_O			(1 << 0)
+#define VPE_LINEAR			(1 << 1)
+#define VPE_SC_BYPASS			(1 << 2)
+#define VPE_INVT_FID			(1 << 3)
+#define VPE_USE_RAV			(1 << 4)
+#define VPE_ENABLE_EV			(1 << 5)
+#define VPE_AUTO_HS			(1 << 6)
+#define VPE_DCM_2X			(1 << 7)
+#define VPE_DCM_4X			(1 << 8)
+#define VPE_HP_BYPASS			(1 << 9)
+#define VPE_INTERLACE_I			(1 << 10)
+#define VPE_ENABLE_SIN2_VER_INTP	(1 << 11)
+#define VPE_Y_PK_EN			(1 << 14)
+#define VPE_TRIM			(1 << 15)
+#define VPE_SELFGEN_FID			(1 << 16)
+
+#define VPE_SC_MP_SC1			0x0704
+#define VPE_ROW_ACC_INC_MASK		0x07ffffff
+#define VPE_ROW_ACC_INC_SHIFT		0
+
+#define VPE_SC_MP_SC2			0x0708
+#define VPE_ROW_ACC_OFFSET_MASK		0x0fffffff
+#define VPE_ROW_ACC_OFFSET_SHIFT	0
+
+#define VPE_SC_MP_SC3			0x070c
+#define VPE_ROW_ACC_OFFSET_B_MASK	0x0fffffff
+#define VPE_ROW_ACC_OFFSET_B_SHIFT	0
+
+#define VPE_SC_MP_SC4			0x0710
+#define VPE_TAR_H_MASK			0x07ff
+#define VPE_TAR_H_SHIFT			0
+#define VPE_TAR_W_MASK			0x07ff
+#define VPE_TAR_W_SHIFT			12
+#define VPE_LIN_ACC_INC_U_MASK		0x07
+#define VPE_LIN_ACC_INC_U_SHIFT		24
+#define VPE_NLIN_ACC_INIT_U_MASK	0x07
+#define VPE_NLIN_ACC_INIT_U_SHIFT	28
+
+#define VPE_SC_MP_SC5			0x0714
+#define VPE_SRC_H_MASK			0x07ff
+#define VPE_SRC_H_SHIFT			0
+#define VPE_SRC_W_MASK			0x07ff
+#define VPE_SRC_W_SHIFT			12
+#define VPE_NLIN_ACC_INC_U_MASK		0x07
+#define VPE_NLIN_ACC_INC_U_SHIFT	24
+
+#define VPE_SC_MP_SC6			0x0718
+#define VPE_ROW_ACC_INIT_RAV_MASK	0x03ff
+#define VPE_ROW_ACC_INIT_RAV_SHIFT	0
+#define VPE_ROW_ACC_INIT_RAV_B_MASK	0x03ff
+#define VPE_ROW_ACC_INIT_RAV_B_SHIFT	10
+
+#define VPE_SC_MP_SC8			0x0720
+#define VPE_NLIN_LEFT_MASK		0x07ff
+#define VPE_NLIN_LEFT_SHIFT		0
+#define VPE_NLIN_RIGHT_MASK		0x07ff
+#define VPE_NLIN_RIGHT_SHIFT		12
+
+#define VPE_SC_MP_SC9			0x0724
+#define VPE_LIN_ACC_INC			VPE_SC_MP_SC9
+
+#define VPE_SC_MP_SC10			0x0728
+#define VPE_NLIN_ACC_INIT		VPE_SC_MP_SC10
+
+#define VPE_SC_MP_SC11			0x072c
+#define VPE_NLIN_ACC_INC		VPE_SC_MP_SC11
+
+#define VPE_SC_MP_SC12			0x0730
+#define VPE_COL_ACC_OFFSET_MASK		0x01ffffff
+#define VPE_COL_ACC_OFFSET_SHIFT	0
+
+#define VPE_SC_MP_SC13			0x0734
+#define VPE_SC_FACTOR_RAV_MASK		0x03ff
+#define VPE_SC_FACTOR_RAV_SHIFT		0
+#define VPE_CHROMA_INTP_THR_MASK	0x03ff
+#define VPE_CHROMA_INTP_THR_SHIFT	12
+#define VPE_DELTA_CHROMA_THR_MASK	0x0f
+#define VPE_DELTA_CHROMA_THR_SHIFT	24
+
+#define VPE_SC_MP_SC17			0x0744
+#define VPE_EV_THR_MASK			0x03ff
+#define VPE_EV_THR_SHIFT		12
+#define VPE_DELTA_LUMA_THR_MASK		0x0f
+#define VPE_DELTA_LUMA_THR_SHIFT	24
+#define VPE_DELTA_EV_THR_MASK		0x0f
+#define VPE_DELTA_EV_THR_SHIFT		28
+
+#define VPE_SC_MP_SC18			0x0748
+#define VPE_HS_FACTOR_MASK		0x03ff
+#define VPE_HS_FACTOR_SHIFT		0
+#define VPE_CONF_DEFAULT_MASK		0x01ff
+#define VPE_CONF_DEFAULT_SHIFT		16
+
+#define VPE_SC_MP_SC19			0x074c
+#define VPE_HPF_COEFF0_MASK		0xff
+#define VPE_HPF_COEFF0_SHIFT		0
+#define VPE_HPF_COEFF1_MASK		0xff
+#define VPE_HPF_COEFF1_SHIFT		8
+#define VPE_HPF_COEFF2_MASK		0xff
+#define VPE_HPF_COEFF2_SHIFT		16
+#define VPE_HPF_COEFF3_MASK		0xff
+#define VPE_HPF_COEFF3_SHIFT		23
+
+#define VPE_SC_MP_SC20			0x0750
+#define VPE_HPF_COEFF4_MASK		0xff
+#define VPE_HPF_COEFF4_SHIFT		0
+#define VPE_HPF_COEFF5_MASK		0xff
+#define VPE_HPF_COEFF5_SHIFT		8
+#define VPE_HPF_NORM_SHIFT_MASK		0x07
+#define VPE_HPF_NORM_SHIFT_SHIFT	16
+#define VPE_NL_LIMIT_MASK		0x1ff
+#define VPE_NL_LIMIT_SHIFT		20
+
+#define VPE_SC_MP_SC21			0x0754
+#define VPE_NL_LO_THR_MASK		0x01ff
+#define VPE_NL_LO_THR_SHIFT		0
+#define VPE_NL_LO_SLOPE_MASK		0xff
+#define VPE_NL_LO_SLOPE_SHIFT		16
+
+#define VPE_SC_MP_SC22			0x0758
+#define VPE_NL_HI_THR_MASK		0x01ff
+#define VPE_NL_HI_THR_SHIFT		0
+#define VPE_NL_HI_SLOPE_SH_MASK		0x07
+#define VPE_NL_HI_SLOPE_SH_SHIFT	16
+
+#define VPE_SC_MP_SC23			0x075c
+#define VPE_GRADIENT_THR_MASK		0x07ff
+#define VPE_GRADIENT_THR_SHIFT		0
+#define VPE_GRADIENT_THR_RANGE_MASK	0x0f
+#define VPE_GRADIENT_THR_RANGE_SHIFT	12
+#define VPE_MIN_GY_THR_MASK		0xff
+#define VPE_MIN_GY_THR_SHIFT		16
+#define VPE_MIN_GY_THR_RANGE_MASK	0x0f
+#define VPE_MIN_GY_THR_RANGE_SHIFT	28
+
+#define VPE_SC_MP_SC24			0x0760
+#define VPE_ORG_H_MASK			0x07ff
+#define VPE_ORG_H_SHIFT			0
+#define VPE_ORG_W_MASK			0x07ff
+#define VPE_ORG_W_SHIFT			16
+
+#define VPE_SC_MP_SC25			0x0764
+#define VPE_OFF_H_MASK			0x07ff
+#define VPE_OFF_H_SHIFT			0
+#define VPE_OFF_W_MASK			0x07ff
+#define VPE_OFF_W_SHIFT			16
+
+/* VPE color space converter regs */
+#define VPE_CSC_CSC00			0x5700
+#define VPE_CSC_A0_MASK			0x1fff
+#define VPE_CSC_A0_SHIFT		0
+#define VPE_CSC_B0_MASK			0x1fff
+#define VPE_CSC_B0_SHIFT		16
+
+#define VPE_CSC_CSC01			0x5704
+#define VPE_CSC_C0_MASK			0x1fff
+#define VPE_CSC_C0_SHIFT		0
+#define VPE_CSC_A1_MASK			0x1fff
+#define VPE_CSC_A1_SHIFT		16
+
+#define VPE_CSC_CSC02			0x5708
+#define VPE_CSC_B1_MASK			0x1fff
+#define VPE_CSC_B1_SHIFT		0
+#define VPE_CSC_C1_MASK			0x1fff
+#define VPE_CSC_C1_SHIFT		16
+
+#define VPE_CSC_CSC03			0x570c
+#define VPE_CSC_A2_MASK			0x1fff
+#define VPE_CSC_A2_SHIFT		0
+#define VPE_CSC_B2_MASK			0x1fff
+#define VPE_CSC_B2_SHIFT		16
+
+#define VPE_CSC_CSC04			0x5710
+#define VPE_CSC_C2_MASK			0x1fff
+#define VPE_CSC_C2_SHIFT		0
+#define VPE_CSC_D0_MASK			0x0fff
+#define VPE_CSC_D0_SHIFT		16
+
+#define VPE_CSC_CSC05			0x5714
+#define VPE_CSC_D1_MASK			0x0fff
+#define VPE_CSC_D1_SHIFT		0
+#define VPE_CSC_D2_MASK			0x0fff
+#define VPE_CSC_D2_SHIFT		16
+#define VPE_CSC_BYPASS			(1 << 28)
+
+#endif
diff --git a/include/uapi/linux/v4l2-controls.h b/include/uapi/linux/v4l2-controls.h
index 083bb5a5aae2..1666aabbbb86 100644
--- a/include/uapi/linux/v4l2-controls.h
+++ b/include/uapi/linux/v4l2-controls.h
@@ -160,6 +160,10 @@ enum v4l2_colorfx {
  * of controls. Total of 16 controls is reserved for this driver */
 #define V4L2_CID_USER_SI476X_BASE		(V4L2_CID_USER_BASE + 0x1040)
 
+/* The base for the TI VPE driver controls. Total of 16 controls is reserved for
+ * this driver */
+#define V4L2_CID_USER_TI_VPE_BASE		(V4L2_CID_USER_BASE + 0x1050)
+
 /* MPEG-class control IDs */
 /* The MPEG controls are applicable to all codec controls
  * and the 'MPEG' part of the define is historical */
-- 
cgit 


From 585e6f010b1fcfd2b0f639933d2d97f7087503b2 Mon Sep 17 00:00:00 2001
From: Archit Taneja <archit@ti.com>
Date: Wed, 16 Oct 2013 02:36:48 -0300
Subject: [media] v4l: ti-vpe: Add de-interlacer support in VPE

Add support for the de-interlacer block in VPE. For de-interlacer to
work, we need to enable 2 more sets of VPE input ports which fetch data
from the 'last' and 'last to last' fields of the interlaced video. Apart
from that, we need to enable the Motion vector output and input ports,
and also allocate DMA buffers for them.

We need to make sure that two most recent fields in the source queue are
available and in the 'READY' state. Once a mem2mem context gets access
to the VPE HW(in device_run), it extracts the addresses of the 3
buffers, and provides it to the data descriptors for the 3 sets of input
ports((LUMA1, CHROMA1), (LUMA2, CHROMA2), and (LUMA3, CHROMA3))
respectively for the 3 consecutive fields. The motion vector and output
port descriptors are configured and the list is submitted to VPDMA.

Once the transaction is done, the v4l2 buffer corresponding to the
oldest field(the 3rd one) is changed to the state 'DONE', and the
buffers corresponding to 1st and 2nd fields become the 2nd and 3rd field
for the next de-interlace operation. This way, for each deinterlace
operation, we have the 3 most recent fields. After each transaction, we
also swap the motion vector buffers, the new input motion vector buffer
contains the resultant motion information of all the previous frames,
and the new output motion vector buffer will be used to hold the updated
motion vector to capture the motion changes in the next field. The
motion vector buffers are allocated using the DMA allocation API.

The de-interlacer is removed from bypass mode, it requires some extra
default configurations which are now added. The chrominance upsampler
coefficients are added for interlaced frames. Some VPDMA parameters like
frame start event and line mode are configured for the 2 extra sets of
input ports.

Signed-off-by: Archit Taneja <archit@ti.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/ti-vpe/vpe.c | 392 ++++++++++++++++++++++++++++++++----
 1 file changed, 358 insertions(+), 34 deletions(-)

diff --git a/drivers/media/platform/ti-vpe/vpe.c b/drivers/media/platform/ti-vpe/vpe.c
index 3bd9ca658b54..4e58069e24ff 100644
--- a/drivers/media/platform/ti-vpe/vpe.c
+++ b/drivers/media/platform/ti-vpe/vpe.c
@@ -69,6 +69,8 @@
 #define VPE_CHROMA	1
 
 /* per m2m context info */
+#define VPE_MAX_SRC_BUFS	3	/* need 3 src fields to de-interlace */
+
 #define VPE_DEF_BUFS_PER_JOB	1	/* default one buffer per batch job */
 
 /*
@@ -111,6 +113,38 @@ static const struct vpe_us_coeffs us_coeffs[] = {
 		0x00C8, 0x0348, 0x0018, 0x3FD8, 0x3FB8, 0x0378, 0x00E8, 0x3FE8,
 		0x00C8, 0x0348, 0x0018, 0x3FD8, 0x3FB8, 0x0378, 0x00E8, 0x3FE8,
 	},
+	{
+		/* Coefficients for Top Field Interlaced input */
+		0x0051, 0x03D5, 0x3FE3, 0x3FF7, 0x3FB5, 0x02E9, 0x018F, 0x3FD3,
+		/* Coefficients for Bottom Field Interlaced input */
+		0x016B, 0x0247, 0x00B1, 0x3F9D, 0x3FCF, 0x03DB, 0x005D, 0x3FF9,
+	},
+};
+
+/*
+ * the following registers are for configuring some of the parameters of the
+ * motion and edge detection blocks inside DEI, these generally remain the same,
+ * these could be passed later via userspace if some one needs to tweak these.
+ */
+struct vpe_dei_regs {
+	unsigned long mdt_spacial_freq_thr_reg;		/* VPE_DEI_REG2 */
+	unsigned long edi_config_reg;			/* VPE_DEI_REG3 */
+	unsigned long edi_lut_reg0;			/* VPE_DEI_REG4 */
+	unsigned long edi_lut_reg1;			/* VPE_DEI_REG5 */
+	unsigned long edi_lut_reg2;			/* VPE_DEI_REG6 */
+	unsigned long edi_lut_reg3;			/* VPE_DEI_REG7 */
+};
+
+/*
+ * default expert DEI register values, unlikely to be modified.
+ */
+static const struct vpe_dei_regs dei_regs = {
+	0x020C0804u,
+	0x0118100Fu,
+	0x08040200u,
+	0x1010100Cu,
+	0x10101010u,
+	0x10101010u,
 };
 
 /*
@@ -118,6 +152,7 @@ static const struct vpe_us_coeffs us_coeffs[] = {
  */
 struct vpe_port_data {
 	enum vpdma_channel channel;	/* VPDMA channel */
+	u8	vb_index;		/* input frame f, f-1, f-2 index */
 	u8	vb_part;		/* plane index for co-panar formats */
 };
 
@@ -126,6 +161,12 @@ struct vpe_port_data {
  */
 #define VPE_PORT_LUMA1_IN	0
 #define VPE_PORT_CHROMA1_IN	1
+#define VPE_PORT_LUMA2_IN	2
+#define VPE_PORT_CHROMA2_IN	3
+#define VPE_PORT_LUMA3_IN	4
+#define VPE_PORT_CHROMA3_IN	5
+#define VPE_PORT_MV_IN		6
+#define VPE_PORT_MV_OUT		7
 #define VPE_PORT_LUMA_OUT	8
 #define VPE_PORT_CHROMA_OUT	9
 #define VPE_PORT_RGB_OUT	10
@@ -133,12 +174,40 @@ struct vpe_port_data {
 static const struct vpe_port_data port_data[11] = {
 	[VPE_PORT_LUMA1_IN] = {
 		.channel	= VPE_CHAN_LUMA1_IN,
+		.vb_index	= 0,
 		.vb_part	= VPE_LUMA,
 	},
 	[VPE_PORT_CHROMA1_IN] = {
 		.channel	= VPE_CHAN_CHROMA1_IN,
+		.vb_index	= 0,
+		.vb_part	= VPE_CHROMA,
+	},
+	[VPE_PORT_LUMA2_IN] = {
+		.channel	= VPE_CHAN_LUMA2_IN,
+		.vb_index	= 1,
+		.vb_part	= VPE_LUMA,
+	},
+	[VPE_PORT_CHROMA2_IN] = {
+		.channel	= VPE_CHAN_CHROMA2_IN,
+		.vb_index	= 1,
+		.vb_part	= VPE_CHROMA,
+	},
+	[VPE_PORT_LUMA3_IN] = {
+		.channel	= VPE_CHAN_LUMA3_IN,
+		.vb_index	= 2,
+		.vb_part	= VPE_LUMA,
+	},
+	[VPE_PORT_CHROMA3_IN] = {
+		.channel	= VPE_CHAN_CHROMA3_IN,
+		.vb_index	= 2,
 		.vb_part	= VPE_CHROMA,
 	},
+	[VPE_PORT_MV_IN] = {
+		.channel	= VPE_CHAN_MV_IN,
+	},
+	[VPE_PORT_MV_OUT] = {
+		.channel	= VPE_CHAN_MV_OUT,
+	},
 	[VPE_PORT_LUMA_OUT] = {
 		.channel	= VPE_CHAN_LUMA_OUT,
 		.vb_part	= VPE_LUMA,
@@ -210,6 +279,7 @@ struct vpe_q_data {
 	unsigned int		height;				/* frame height */
 	unsigned int		bytesperline[VPE_MAX_PLANES];	/* bytes per line in memory */
 	enum v4l2_colorspace	colorspace;
+	enum v4l2_field		field;				/* supported field value */
 	unsigned int		flags;
 	unsigned int		sizeimage[VPE_MAX_PLANES];	/* image size in memory */
 	struct v4l2_rect	c_rect;				/* crop/compose rectangle */
@@ -219,6 +289,7 @@ struct vpe_q_data {
 /* vpe_q_data flag bits */
 #define	Q_DATA_FRAME_1D		(1 << 0)
 #define	Q_DATA_MODE_TILED	(1 << 1)
+#define	Q_DATA_INTERLACED	(1 << 2)
 
 enum {
 	Q_DATA_SRC = 0,
@@ -270,6 +341,7 @@ struct vpe_ctx {
 	struct v4l2_m2m_ctx	*m2m_ctx;
 	struct v4l2_ctrl_handler hdl;
 
+	unsigned int		field;			/* current field */
 	unsigned int		sequence;		/* current frame/field seq */
 	unsigned int		aborting;		/* abort after next irq */
 
@@ -277,13 +349,19 @@ struct vpe_ctx {
 	unsigned int		bufs_completed;		/* bufs done in this batch */
 
 	struct vpe_q_data	q_data[2];		/* src & dst queue data */
-	struct vb2_buffer	*src_vb;
+	struct vb2_buffer	*src_vbs[VPE_MAX_SRC_BUFS];
 	struct vb2_buffer	*dst_vb;
 
+	dma_addr_t		mv_buf_dma[2];		/* dma addrs of motion vector in/out bufs */
+	void			*mv_buf[2];		/* virtual addrs of motion vector bufs */
+	size_t			mv_buf_size;		/* current motion vector buffer size */
 	struct vpdma_buf	mmr_adb;		/* shadow reg addr/data block */
 	struct vpdma_desc_list	desc_list;		/* DMA descriptor list */
 
+	bool			deinterlacing;		/* using de-interlacer */
 	bool			load_mmrs;		/* have new shadow reg values */
+
+	unsigned int		src_mv_buf_selector;
 };
 
 
@@ -359,8 +437,7 @@ struct vpe_mmr_adb {
 	struct vpdma_adb_hdr	us3_hdr;
 	u32			us3_regs[8];
 	struct vpdma_adb_hdr	dei_hdr;
-	u32			dei_regs[1];
-	u32			dei_pad[3];
+	u32			dei_regs[8];
 	struct vpdma_adb_hdr	sc_hdr;
 	u32			sc_regs[1];
 	u32			sc_pad[3];
@@ -385,6 +462,80 @@ static void init_adb_hdrs(struct vpe_ctx *ctx)
 	VPE_SET_MMR_ADB_HDR(ctx, csc_hdr, csc_regs, VPE_CSC_CSC00);
 };
 
+/*
+ * Allocate or re-allocate the motion vector DMA buffers
+ * There are two buffers, one for input and one for output.
+ * However, the roles are reversed after each field is processed.
+ * In other words, after each field is processed, the previous
+ * output (dst) MV buffer becomes the new input (src) MV buffer.
+ */
+static int realloc_mv_buffers(struct vpe_ctx *ctx, size_t size)
+{
+	struct device *dev = ctx->dev->v4l2_dev.dev;
+
+	if (ctx->mv_buf_size == size)
+		return 0;
+
+	if (ctx->mv_buf[0])
+		dma_free_coherent(dev, ctx->mv_buf_size, ctx->mv_buf[0],
+			ctx->mv_buf_dma[0]);
+
+	if (ctx->mv_buf[1])
+		dma_free_coherent(dev, ctx->mv_buf_size, ctx->mv_buf[1],
+			ctx->mv_buf_dma[1]);
+
+	if (size == 0)
+		return 0;
+
+	ctx->mv_buf[0] = dma_alloc_coherent(dev, size, &ctx->mv_buf_dma[0],
+				GFP_KERNEL);
+	if (!ctx->mv_buf[0]) {
+		vpe_err(ctx->dev, "failed to allocate motion vector buffer\n");
+		return -ENOMEM;
+	}
+
+	ctx->mv_buf[1] = dma_alloc_coherent(dev, size, &ctx->mv_buf_dma[1],
+				GFP_KERNEL);
+	if (!ctx->mv_buf[1]) {
+		vpe_err(ctx->dev, "failed to allocate motion vector buffer\n");
+		dma_free_coherent(dev, size, ctx->mv_buf[0],
+			ctx->mv_buf_dma[0]);
+
+		return -ENOMEM;
+	}
+
+	ctx->mv_buf_size = size;
+	ctx->src_mv_buf_selector = 0;
+
+	return 0;
+}
+
+static void free_mv_buffers(struct vpe_ctx *ctx)
+{
+	realloc_mv_buffers(ctx, 0);
+}
+
+/*
+ * While de-interlacing, we keep the two most recent input buffers
+ * around.  This function frees those two buffers when we have
+ * finished processing the current stream.
+ */
+static void free_vbs(struct vpe_ctx *ctx)
+{
+	struct vpe_dev *dev = ctx->dev;
+	unsigned long flags;
+
+	if (ctx->src_vbs[2] == NULL)
+		return;
+
+	spin_lock_irqsave(&dev->lock, flags);
+	if (ctx->src_vbs[2]) {
+		v4l2_m2m_buf_done(ctx->src_vbs[2], VB2_BUF_STATE_DONE);
+		v4l2_m2m_buf_done(ctx->src_vbs[1], VB2_BUF_STATE_DONE);
+	}
+	spin_unlock_irqrestore(&dev->lock, flags);
+}
+
 /*
  * Enable or disable the VPE clocks
  */
@@ -426,6 +577,7 @@ static void vpe_top_vpdma_reset(struct vpe_dev *dev)
 static void set_us_coefficients(struct vpe_ctx *ctx)
 {
 	struct vpe_mmr_adb *mmr_adb = ctx->mmr_adb.addr;
+	struct vpe_q_data *s_q_data = &ctx->q_data[Q_DATA_SRC];
 	u32 *us1_reg = &mmr_adb->us1_regs[0];
 	u32 *us2_reg = &mmr_adb->us2_regs[0];
 	u32 *us3_reg = &mmr_adb->us3_regs[0];
@@ -433,6 +585,9 @@ static void set_us_coefficients(struct vpe_ctx *ctx)
 
 	cp = &us_coeffs[0].anchor_fid0_c0;
 
+	if (s_q_data->flags & Q_DATA_INTERLACED)	/* interlaced */
+		cp += sizeof(us_coeffs[0]) / sizeof(*cp);
+
 	end_cp = cp + sizeof(us_coeffs[0]) / sizeof(*cp);
 
 	while (cp < end_cp) {
@@ -473,14 +628,28 @@ static void set_cfg_and_line_modes(struct vpe_ctx *ctx)
 
 	/* regs for now */
 	vpdma_set_line_mode(ctx->dev->vpdma, line_mode, VPE_CHAN_CHROMA1_IN);
+	vpdma_set_line_mode(ctx->dev->vpdma, line_mode, VPE_CHAN_CHROMA2_IN);
+	vpdma_set_line_mode(ctx->dev->vpdma, line_mode, VPE_CHAN_CHROMA3_IN);
 
 	/* frame start for input luma */
 	vpdma_set_frame_start_event(ctx->dev->vpdma, VPDMA_FSEVENT_CHANNEL_ACTIVE,
 		VPE_CHAN_LUMA1_IN);
+	vpdma_set_frame_start_event(ctx->dev->vpdma, VPDMA_FSEVENT_CHANNEL_ACTIVE,
+		VPE_CHAN_LUMA2_IN);
+	vpdma_set_frame_start_event(ctx->dev->vpdma, VPDMA_FSEVENT_CHANNEL_ACTIVE,
+		VPE_CHAN_LUMA3_IN);
 
 	/* frame start for input chroma */
 	vpdma_set_frame_start_event(ctx->dev->vpdma, VPDMA_FSEVENT_CHANNEL_ACTIVE,
 		VPE_CHAN_CHROMA1_IN);
+	vpdma_set_frame_start_event(ctx->dev->vpdma, VPDMA_FSEVENT_CHANNEL_ACTIVE,
+		VPE_CHAN_CHROMA2_IN);
+	vpdma_set_frame_start_event(ctx->dev->vpdma, VPDMA_FSEVENT_CHANNEL_ACTIVE,
+		VPE_CHAN_CHROMA3_IN);
+
+	/* frame start for MV in client */
+	vpdma_set_frame_start_event(ctx->dev->vpdma, VPDMA_FSEVENT_CHANNEL_ACTIVE,
+		VPE_CHAN_MV_IN);
 
 	ctx->load_mmrs = true;
 }
@@ -524,13 +693,14 @@ static void set_dst_registers(struct vpe_ctx *ctx)
 /*
  * Set the de-interlacer shadow register values
  */
-static void set_dei_regs_bypass(struct vpe_ctx *ctx)
+static void set_dei_regs(struct vpe_ctx *ctx)
 {
 	struct vpe_mmr_adb *mmr_adb = ctx->mmr_adb.addr;
 	struct vpe_q_data *s_q_data = &ctx->q_data[Q_DATA_SRC];
 	unsigned int src_h = s_q_data->c_rect.height;
 	unsigned int src_w = s_q_data->c_rect.width;
 	u32 *dei_mmr0 = &mmr_adb->dei_regs[0];
+	bool deinterlace = true;
 	u32 val = 0;
 
 	/*
@@ -539,7 +709,13 @@ static void set_dei_regs_bypass(struct vpe_ctx *ctx)
 	 * for both progressive and interlace content in interlace bypass mode.
 	 * It has been recommended not to use progressive bypass mode.
 	 */
-	val = VPE_DEI_INTERLACE_BYPASS;
+	if ((!ctx->deinterlacing && (s_q_data->flags & Q_DATA_INTERLACED)) ||
+			!(s_q_data->flags & Q_DATA_INTERLACED)) {
+		deinterlace = false;
+		val = VPE_DEI_INTERLACE_BYPASS;
+	}
+
+	src_h = deinterlace ? src_h * 2 : src_h;
 
 	val |= (src_h << VPE_DEI_HEIGHT_SHIFT) |
 		(src_w << VPE_DEI_WIDTH_SHIFT) |
@@ -550,6 +726,22 @@ static void set_dei_regs_bypass(struct vpe_ctx *ctx)
 	ctx->load_mmrs = true;
 }
 
+static void set_dei_shadow_registers(struct vpe_ctx *ctx)
+{
+	struct vpe_mmr_adb *mmr_adb = ctx->mmr_adb.addr;
+	u32 *dei_mmr = &mmr_adb->dei_regs[0];
+	const struct vpe_dei_regs *cur = &dei_regs;
+
+	dei_mmr[2]  = cur->mdt_spacial_freq_thr_reg;
+	dei_mmr[3]  = cur->edi_config_reg;
+	dei_mmr[4]  = cur->edi_lut_reg0;
+	dei_mmr[5]  = cur->edi_lut_reg1;
+	dei_mmr[6]  = cur->edi_lut_reg2;
+	dei_mmr[7]  = cur->edi_lut_reg3;
+
+	ctx->load_mmrs = true;
+}
+
 static void set_csc_coeff_bypass(struct vpe_ctx *ctx)
 {
 	struct vpe_mmr_adb *mmr_adb = ctx->mmr_adb.addr;
@@ -578,10 +770,35 @@ static void set_sc_regs_bypass(struct vpe_ctx *ctx)
  */
 static int set_srcdst_params(struct vpe_ctx *ctx)
 {
+	struct vpe_q_data *s_q_data =  &ctx->q_data[Q_DATA_SRC];
+	struct vpe_q_data *d_q_data =  &ctx->q_data[Q_DATA_DST];
+	size_t mv_buf_size;
+	int ret;
+
 	ctx->sequence = 0;
+	ctx->field = V4L2_FIELD_TOP;
+
+	if ((s_q_data->flags & Q_DATA_INTERLACED) &&
+			!(d_q_data->flags & Q_DATA_INTERLACED)) {
+		const struct vpdma_data_format *mv =
+			&vpdma_misc_fmts[VPDMA_DATA_FMT_MV];
+
+		ctx->deinterlacing = 1;
+		mv_buf_size =
+			(s_q_data->width * s_q_data->height * mv->depth) >> 3;
+	} else {
+		ctx->deinterlacing = 0;
+		mv_buf_size = 0;
+	}
+
+	free_vbs(ctx);
+
+	ret = realloc_mv_buffers(ctx, mv_buf_size);
+	if (ret)
+		return ret;
 
 	set_cfg_and_line_modes(ctx);
-	set_dei_regs_bypass(ctx);
+	set_dei_regs(ctx);
 	set_csc_coeff_bypass(ctx);
 	set_sc_regs_bypass(ctx);
 
@@ -608,6 +825,9 @@ static int job_ready(void *priv)
 	struct vpe_ctx *ctx = priv;
 	int needed = ctx->bufs_per_job;
 
+	if (ctx->deinterlacing && ctx->src_vbs[2] == NULL)
+		needed += 2;	/* need additional two most recent fields */
+
 	if (v4l2_m2m_num_src_bufs_ready(ctx->m2m_ctx) < needed)
 		return 0;
 
@@ -735,17 +955,25 @@ static void add_out_dtd(struct vpe_ctx *ctx, int port)
 	struct v4l2_rect *c_rect = &q_data->c_rect;
 	struct vpe_fmt *fmt = q_data->fmt;
 	const struct vpdma_data_format *vpdma_fmt;
-	int plane = fmt->coplanar ? p_data->vb_part : 0;
+	int mv_buf_selector = !ctx->src_mv_buf_selector;
 	dma_addr_t dma_addr;
 	u32 flags = 0;
 
-	vpdma_fmt = fmt->vpdma_fmt[plane];
-	dma_addr = vb2_dma_contig_plane_dma_addr(vb, plane);
-	if (!dma_addr) {
-		vpe_err(ctx->dev,
-			"acquiring output buffer(%d) dma_addr failed\n",
-			port);
-		return;
+	if (port == VPE_PORT_MV_OUT) {
+		vpdma_fmt = &vpdma_misc_fmts[VPDMA_DATA_FMT_MV];
+		dma_addr = ctx->mv_buf_dma[mv_buf_selector];
+	} else {
+		/* to incorporate interleaved formats */
+		int plane = fmt->coplanar ? p_data->vb_part : 0;
+
+		vpdma_fmt = fmt->vpdma_fmt[plane];
+		dma_addr = vb2_dma_contig_plane_dma_addr(vb, plane);
+		if (!dma_addr) {
+			vpe_err(ctx->dev,
+				"acquiring output buffer(%d) dma_addr failed\n",
+				port);
+			return;
+		}
 	}
 
 	if (q_data->flags & Q_DATA_FRAME_1D)
@@ -761,23 +989,31 @@ static void add_in_dtd(struct vpe_ctx *ctx, int port)
 {
 	struct vpe_q_data *q_data = &ctx->q_data[Q_DATA_SRC];
 	const struct vpe_port_data *p_data = &port_data[port];
-	struct vb2_buffer *vb = ctx->src_vb;
+	struct vb2_buffer *vb = ctx->src_vbs[p_data->vb_index];
 	struct v4l2_rect *c_rect = &q_data->c_rect;
 	struct vpe_fmt *fmt = q_data->fmt;
 	const struct vpdma_data_format *vpdma_fmt;
-	int plane = fmt->coplanar ? p_data->vb_part : 0;
-	int field = 0;
+	int mv_buf_selector = ctx->src_mv_buf_selector;
+	int field = vb->v4l2_buf.field == V4L2_FIELD_BOTTOM;
 	dma_addr_t dma_addr;
 	u32 flags = 0;
 
-	vpdma_fmt = fmt->vpdma_fmt[plane];
+	if (port == VPE_PORT_MV_IN) {
+		vpdma_fmt = &vpdma_misc_fmts[VPDMA_DATA_FMT_MV];
+		dma_addr = ctx->mv_buf_dma[mv_buf_selector];
+	} else {
+		/* to incorporate interleaved formats */
+		int plane = fmt->coplanar ? p_data->vb_part : 0;
 
-	dma_addr = vb2_dma_contig_plane_dma_addr(vb, plane);
-	if (!dma_addr) {
-		vpe_err(ctx->dev,
-			"acquiring input buffer(%d) dma_addr failed\n",
-			port);
-		return;
+		vpdma_fmt = fmt->vpdma_fmt[plane];
+
+		dma_addr = vb2_dma_contig_plane_dma_addr(vb, plane);
+		if (!dma_addr) {
+			vpe_err(ctx->dev,
+				"acquiring input buffer(%d) dma_addr failed\n",
+				port);
+			return;
+		}
 	}
 
 	if (q_data->flags & Q_DATA_FRAME_1D)
@@ -795,7 +1031,8 @@ static void add_in_dtd(struct vpe_ctx *ctx, int port)
 static void enable_irqs(struct vpe_ctx *ctx)
 {
 	write_reg(ctx->dev, VPE_INT0_ENABLE0_SET, VPE_INT0_LIST0_COMPLETE);
-	write_reg(ctx->dev, VPE_INT0_ENABLE1_SET, VPE_DS1_UV_ERROR_INT);
+	write_reg(ctx->dev, VPE_INT0_ENABLE1_SET, VPE_DEI_ERROR_INT |
+				VPE_DS1_UV_ERROR_INT);
 
 	vpdma_enable_list_complete_irq(ctx->dev->vpdma, 0, true);
 }
@@ -818,8 +1055,15 @@ static void device_run(void *priv)
 	struct vpe_ctx *ctx = priv;
 	struct vpe_q_data *d_q_data = &ctx->q_data[Q_DATA_DST];
 
-	ctx->src_vb = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
-	WARN_ON(ctx->src_vb == NULL);
+	if (ctx->deinterlacing && ctx->src_vbs[2] == NULL) {
+		ctx->src_vbs[2] = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
+		WARN_ON(ctx->src_vbs[2] == NULL);
+		ctx->src_vbs[1] = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
+		WARN_ON(ctx->src_vbs[1] == NULL);
+	}
+
+	ctx->src_vbs[0] = v4l2_m2m_src_buf_remove(ctx->m2m_ctx);
+	WARN_ON(ctx->src_vbs[0] == NULL);
 	ctx->dst_vb = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
 	WARN_ON(ctx->dst_vb == NULL);
 
@@ -831,28 +1075,67 @@ static void device_run(void *priv)
 		ctx->load_mmrs = false;
 	}
 
+	/* output data descriptors */
+	if (ctx->deinterlacing)
+		add_out_dtd(ctx, VPE_PORT_MV_OUT);
+
 	add_out_dtd(ctx, VPE_PORT_LUMA_OUT);
 	if (d_q_data->fmt->coplanar)
 		add_out_dtd(ctx, VPE_PORT_CHROMA_OUT);
 
+	/* input data descriptors */
+	if (ctx->deinterlacing) {
+		add_in_dtd(ctx, VPE_PORT_LUMA3_IN);
+		add_in_dtd(ctx, VPE_PORT_CHROMA3_IN);
+
+		add_in_dtd(ctx, VPE_PORT_LUMA2_IN);
+		add_in_dtd(ctx, VPE_PORT_CHROMA2_IN);
+	}
+
 	add_in_dtd(ctx, VPE_PORT_LUMA1_IN);
 	add_in_dtd(ctx, VPE_PORT_CHROMA1_IN);
 
+	if (ctx->deinterlacing)
+		add_in_dtd(ctx, VPE_PORT_MV_IN);
+
 	/* sync on channel control descriptors for input ports */
 	vpdma_add_sync_on_channel_ctd(&ctx->desc_list, VPE_CHAN_LUMA1_IN);
 	vpdma_add_sync_on_channel_ctd(&ctx->desc_list, VPE_CHAN_CHROMA1_IN);
 
+	if (ctx->deinterlacing) {
+		vpdma_add_sync_on_channel_ctd(&ctx->desc_list,
+			VPE_CHAN_LUMA2_IN);
+		vpdma_add_sync_on_channel_ctd(&ctx->desc_list,
+			VPE_CHAN_CHROMA2_IN);
+
+		vpdma_add_sync_on_channel_ctd(&ctx->desc_list,
+			VPE_CHAN_LUMA3_IN);
+		vpdma_add_sync_on_channel_ctd(&ctx->desc_list,
+			VPE_CHAN_CHROMA3_IN);
+
+		vpdma_add_sync_on_channel_ctd(&ctx->desc_list, VPE_CHAN_MV_IN);
+	}
+
 	/* sync on channel control descriptors for output ports */
 	vpdma_add_sync_on_channel_ctd(&ctx->desc_list, VPE_CHAN_LUMA_OUT);
 	if (d_q_data->fmt->coplanar)
 		vpdma_add_sync_on_channel_ctd(&ctx->desc_list, VPE_CHAN_CHROMA_OUT);
 
+	if (ctx->deinterlacing)
+		vpdma_add_sync_on_channel_ctd(&ctx->desc_list, VPE_CHAN_MV_OUT);
+
 	enable_irqs(ctx);
 
 	vpdma_map_desc_buf(ctx->dev->vpdma, &ctx->desc_list.buf);
 	vpdma_submit_descs(ctx->dev->vpdma, &ctx->desc_list);
 }
 
+static void dei_error(struct vpe_ctx *ctx)
+{
+	dev_warn(ctx->dev->v4l2_dev.dev,
+		"received DEI error interrupt\n");
+}
+
 static void ds1_uv_error(struct vpe_ctx *ctx)
 {
 	dev_warn(ctx->dev->v4l2_dev.dev,
@@ -863,6 +1146,7 @@ static irqreturn_t vpe_irq(int irq_vpe, void *data)
 {
 	struct vpe_dev *dev = (struct vpe_dev *)data;
 	struct vpe_ctx *ctx;
+	struct vpe_q_data *d_q_data;
 	struct vb2_buffer *s_vb, *d_vb;
 	struct v4l2_buffer *s_buf, *d_buf;
 	unsigned long flags;
@@ -886,9 +1170,15 @@ static irqreturn_t vpe_irq(int irq_vpe, void *data)
 		goto handled;
 	}
 
-	if (irqst1 & VPE_DS1_UV_ERROR_INT) {
-		irqst1 &= ~VPE_DS1_UV_ERROR_INT;
-		ds1_uv_error(ctx);
+	if (irqst1) {
+		if (irqst1 & VPE_DEI_ERROR_INT) {
+			irqst1 &= ~VPE_DEI_ERROR_INT;
+			dei_error(ctx);
+		}
+		if (irqst1 & VPE_DS1_UV_ERROR_INT) {
+			irqst1 &= ~VPE_DS1_UV_ERROR_INT;
+			ds1_uv_error(ctx);
+		}
 	}
 
 	if (irqst0) {
@@ -911,10 +1201,13 @@ static irqreturn_t vpe_irq(int irq_vpe, void *data)
 
 	vpdma_reset_desc_list(&ctx->desc_list);
 
+	 /* the previous dst mv buffer becomes the next src mv buffer */
+	ctx->src_mv_buf_selector = !ctx->src_mv_buf_selector;
+
 	if (ctx->aborting)
 		goto finished;
 
-	s_vb = ctx->src_vb;
+	s_vb = ctx->src_vbs[0];
 	d_vb = ctx->dst_vb;
 	s_buf = &s_vb->v4l2_buf;
 	d_buf = &d_vb->v4l2_buf;
@@ -924,16 +1217,35 @@ static irqreturn_t vpe_irq(int irq_vpe, void *data)
 		d_buf->flags |= V4L2_BUF_FLAG_TIMECODE;
 		d_buf->timecode = s_buf->timecode;
 	}
-
 	d_buf->sequence = ctx->sequence;
+	d_buf->field = ctx->field;
+
+	d_q_data = &ctx->q_data[Q_DATA_DST];
+	if (d_q_data->flags & Q_DATA_INTERLACED) {
+		if (ctx->field == V4L2_FIELD_BOTTOM) {
+			ctx->sequence++;
+			ctx->field = V4L2_FIELD_TOP;
+		} else {
+			WARN_ON(ctx->field != V4L2_FIELD_TOP);
+			ctx->field = V4L2_FIELD_BOTTOM;
+		}
+	} else {
+		ctx->sequence++;
+	}
 
-	ctx->sequence++;
+	if (ctx->deinterlacing)
+		s_vb = ctx->src_vbs[2];
 
 	spin_lock_irqsave(&dev->lock, flags);
 	v4l2_m2m_buf_done(s_vb, VB2_BUF_STATE_DONE);
 	v4l2_m2m_buf_done(d_vb, VB2_BUF_STATE_DONE);
 	spin_unlock_irqrestore(&dev->lock, flags);
 
+	if (ctx->deinterlacing) {
+		ctx->src_vbs[2] = ctx->src_vbs[1];
+		ctx->src_vbs[1] = ctx->src_vbs[0];
+	}
+
 	ctx->bufs_completed++;
 	if (ctx->bufs_completed < ctx->bufs_per_job) {
 		device_run(ctx);
@@ -1012,6 +1324,7 @@ static int vpe_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
 	pix->width = q_data->width;
 	pix->height = q_data->height;
 	pix->pixelformat = q_data->fmt->fourcc;
+	pix->field = q_data->field;
 
 	if (V4L2_TYPE_IS_OUTPUT(f->type)) {
 		pix->colorspace = q_data->colorspace;
@@ -1047,7 +1360,8 @@ static int __vpe_try_fmt(struct vpe_ctx *ctx, struct v4l2_format *f,
 		return -EINVAL;
 	}
 
-	pix->field = V4L2_FIELD_NONE;
+	if (pix->field != V4L2_FIELD_NONE && pix->field != V4L2_FIELD_ALTERNATE)
+		pix->field = V4L2_FIELD_NONE;
 
 	v4l_bound_align_image(&pix->width, MIN_W, MAX_W, W_ALIGN,
 			      &pix->height, MIN_H, MAX_H, H_ALIGN,
@@ -1124,6 +1438,7 @@ static int __vpe_s_fmt(struct vpe_ctx *ctx, struct v4l2_format *f)
 	q_data->width		= pix->width;
 	q_data->height		= pix->height;
 	q_data->colorspace	= pix->colorspace;
+	q_data->field		= pix->field;
 
 	for (i = 0; i < pix->num_planes; i++) {
 		plane_fmt = &pix->plane_fmt[i];
@@ -1137,6 +1452,11 @@ static int __vpe_s_fmt(struct vpe_ctx *ctx, struct v4l2_format *f)
 	q_data->c_rect.width	= q_data->width;
 	q_data->c_rect.height	= q_data->height;
 
+	if (q_data->field == V4L2_FIELD_ALTERNATE)
+		q_data->flags |= Q_DATA_INTERLACED;
+	else
+		q_data->flags &= ~Q_DATA_INTERLACED;
+
 	vpe_dbg(ctx->dev, "Setting format for type %d, wxh: %dx%d, fmt: %d bpl_y %d",
 		f->type, q_data->width, q_data->height, q_data->fmt->fourcc,
 		q_data->bytesperline[VPE_LUMA]);
@@ -1451,6 +1771,7 @@ static int vpe_open(struct file *file)
 	s_q_data->sizeimage[VPE_LUMA] = (s_q_data->width * s_q_data->height *
 			s_q_data->fmt->vpdma_fmt[VPE_LUMA]->depth) >> 3;
 	s_q_data->colorspace = V4L2_COLORSPACE_SMPTE240M;
+	s_q_data->field = V4L2_FIELD_NONE;
 	s_q_data->c_rect.left = 0;
 	s_q_data->c_rect.top = 0;
 	s_q_data->c_rect.width = s_q_data->width;
@@ -1459,6 +1780,7 @@ static int vpe_open(struct file *file)
 
 	ctx->q_data[Q_DATA_DST] = *s_q_data;
 
+	set_dei_shadow_registers(ctx);
 	set_src_registers(ctx);
 	set_dst_registers(ctx);
 	ret = set_srcdst_params(ctx);
@@ -1513,6 +1835,8 @@ static int vpe_release(struct file *file)
 	vpe_dbg(dev, "releasing instance %p\n", ctx);
 
 	mutex_lock(&dev->dev_mutex);
+	free_vbs(ctx);
+	free_mv_buffers(ctx);
 	vpdma_free_desc_list(&ctx->desc_list);
 	vpdma_free_desc_buf(&ctx->mmr_adb);
 
-- 
cgit 


From 0d74578b7de73c4b7f25daaacff8d5091fa83bd4 Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Mon, 28 Oct 2013 10:13:46 -0700
Subject: ARM: sunxi: remove .init_time hooks

The machine entries were split up, but the cleanup to remove .init_time
removed the function that the new/split entries refer to. Remove them
since they are no longer needed.

Cc: Maxime Ripard <mripard@free-electrons.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/mach-sunxi/sunxi.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/arm/mach-sunxi/sunxi.c b/arch/arm/mach-sunxi/sunxi.c
index ffac2f53fede..61d3a387f01c 100644
--- a/arch/arm/mach-sunxi/sunxi.c
+++ b/arch/arm/mach-sunxi/sunxi.c
@@ -134,7 +134,6 @@ static const char * const sun6i_board_dt_compat[] = {
 
 DT_MACHINE_START(SUN6I_DT, "Allwinner sun6i (A31) Family")
 	.init_machine	= sunxi_dt_init,
-	.init_time	= sunxi_timer_init,
 	.dt_compat	= sun6i_board_dt_compat,
 	.restart	= sun6i_restart,
 MACHINE_END
@@ -146,7 +145,6 @@ static const char * const sun7i_board_dt_compat[] = {
 
 DT_MACHINE_START(SUN7I_DT, "Allwinner sun7i (A20) Family")
 	.init_machine	= sunxi_dt_init,
-	.init_time	= sunxi_timer_init,
 	.dt_compat	= sun7i_board_dt_compat,
 	.restart	= sun4i_restart,
 MACHINE_END
-- 
cgit 


From 4e3eff61905525315b835598f837bd99a442e4fe Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 02:52:24 -0300
Subject: [media] s5p-g2d: Remove casting the return value which is a void
 pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/s5p-g2d/g2d.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/s5p-g2d/g2d.c b/drivers/media/platform/s5p-g2d/g2d.c
index fd6289d60cde..0b2948376aee 100644
--- a/drivers/media/platform/s5p-g2d/g2d.c
+++ b/drivers/media/platform/s5p-g2d/g2d.c
@@ -840,7 +840,7 @@ put_clk:
 
 static int g2d_remove(struct platform_device *pdev)
 {
-	struct g2d_dev *dev = (struct g2d_dev *)platform_get_drvdata(pdev);
+	struct g2d_dev *dev = platform_get_drvdata(pdev);
 
 	v4l2_info(&dev->v4l2_dev, "Removing " G2D_NAME);
 	v4l2_m2m_release(dev->m2m_dev);
-- 
cgit 


From 825143d3bbac4c7230c0f011a9fde972730940bc Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 02:53:39 -0300
Subject: [media] m2m-deinterlace: Remove casting the return value which is a
 void pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/m2m-deinterlace.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/platform/m2m-deinterlace.c b/drivers/media/platform/m2m-deinterlace.c
index 540516ca872c..36513e896413 100644
--- a/drivers/media/platform/m2m-deinterlace.c
+++ b/drivers/media/platform/m2m-deinterlace.c
@@ -1084,8 +1084,7 @@ free_dev:
 
 static int deinterlace_remove(struct platform_device *pdev)
 {
-	struct deinterlace_dev *pcdev =
-		(struct deinterlace_dev *)platform_get_drvdata(pdev);
+	struct deinterlace_dev *pcdev = platform_get_drvdata(pdev);
 
 	v4l2_info(&pcdev->v4l2_dev, "Removing " MEM2MEM_TEST_MODULE_NAME);
 	v4l2_m2m_release(pcdev->m2m_dev);
-- 
cgit 


From ede79413850a2b396ae5ed8629239ec6a8fdb792 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 02:54:27 -0300
Subject: [media] mem2mem_testdev: Remove casting the return value which is a
 void pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/mem2mem_testdev.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/platform/mem2mem_testdev.c b/drivers/media/platform/mem2mem_testdev.c
index 6a17676f9d72..8df5975b700a 100644
--- a/drivers/media/platform/mem2mem_testdev.c
+++ b/drivers/media/platform/mem2mem_testdev.c
@@ -1090,8 +1090,7 @@ unreg_dev:
 
 static int m2mtest_remove(struct platform_device *pdev)
 {
-	struct m2mtest_dev *dev =
-		(struct m2mtest_dev *)platform_get_drvdata(pdev);
+	struct m2mtest_dev *dev = platform_get_drvdata(pdev);
 
 	v4l2_info(&dev->v4l2_dev, "Removing " MEM2MEM_TEST_MODULE_NAME);
 	v4l2_m2m_release(dev->m2m_dev);
-- 
cgit 


From d7bb0ce8884b3515abd8d4dc3e3500f9a9beeab6 Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Thu, 19 Sep 2013 04:40:32 -0300
Subject: [media] v4l2-mem2mem: fix context removal from job queue in
 v4l2_m2m_streamoff

Just clearing the m2m_ctx->queue list_head will leave the m2m_dev->job_queue
in a broken state and can cause scheduling of device_runs after streamoff was
called.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/v4l2-core/v4l2-mem2mem.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/v4l2-core/v4l2-mem2mem.c b/drivers/media/v4l2-core/v4l2-mem2mem.c
index 7c4371288215..8f116c2642db 100644
--- a/drivers/media/v4l2-core/v4l2-mem2mem.c
+++ b/drivers/media/v4l2-core/v4l2-mem2mem.c
@@ -480,7 +480,8 @@ int v4l2_m2m_streamoff(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
 	m2m_dev = m2m_ctx->m2m_dev;
 	spin_lock_irqsave(&m2m_dev->job_spinlock, flags_job);
 	/* We should not be scheduled anymore, since we're dropping a queue. */
-	INIT_LIST_HEAD(&m2m_ctx->queue);
+	if (m2m_ctx->job_flags & TRANS_QUEUED)
+		list_del(&m2m_ctx->queue);
 	m2m_ctx->job_flags = 0;
 
 	spin_lock_irqsave(&q_ctx->rdy_spinlock, flags);
-- 
cgit 


From 84e680980917df60210af713e39400752dc4763d Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Thu, 19 Sep 2013 04:53:21 -0300
Subject: [media] v4l2-mem2mem: clear m2m queue ready counter in
 v4l2_m2m_streamoff

v4l2_m2m_streamoff drops the list of ready buffers but failed to reset the
num_rdy counter to zero. This would lead to v4l2_m2m_num_src/dst_bufs_ready
reporting wrong values after streamoff.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/v4l2-core/v4l2-mem2mem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/v4l2-core/v4l2-mem2mem.c b/drivers/media/v4l2-core/v4l2-mem2mem.c
index 8f116c2642db..796de3349303 100644
--- a/drivers/media/v4l2-core/v4l2-mem2mem.c
+++ b/drivers/media/v4l2-core/v4l2-mem2mem.c
@@ -488,6 +488,7 @@ int v4l2_m2m_streamoff(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
 	/* Drop queue, since streamoff returns device to the same state as after
 	 * calling reqbufs. */
 	INIT_LIST_HEAD(&q_ctx->rdy_queue);
+	q_ctx->num_rdy = 0;
 	spin_unlock_irqrestore(&q_ctx->rdy_spinlock, flags);
 
 	if (m2m_dev->curr_ctx == m2m_ctx) {
-- 
cgit 


From d9315160ed4dc76f6f01acb1b05e92e2a891b9bb Mon Sep 17 00:00:00 2001
From: Shaik Ameer Basha <shaik.ameer@samsung.com>
Date: Fri, 20 Sep 2013 03:26:17 -0300
Subject: [media] exynos-gsc: Handle ctx job finish when aborted

When the current context is running,
1] If release() or streamoff() is called on the current context,
   it waits until the job is aborted or finished.
2] If the job is finished, driver will call the v4l2_m2m_job_finish().
3] If the job is aborted inside device_run callback, then driver
   has to inform the v4l2 mem2mem framework about the same by calling
   v4l2_m2m_job_finish() with VB2_BUF_STATE_ERROR.

The current code doesn't call v4l2_m2m_job_finish() in the case, where
the job is aborted from the device_run callback. This scenerio is
producing a hang as the other queued contexts are not getting scheduled.

By adding the ABORT state, driver can understand the current job
is aborted and not finished. By checking this flag, driver can call
v4l2_m2m_job_finish() with VB2_BUF_STATE_ERROR.

Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com>
Signed-off-by: Avnd Kiran <avnd.kiran@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/exynos-gsc/gsc-core.h |  1 +
 drivers/media/platform/exynos-gsc/gsc-m2m.c  | 29 +++++++++++++++-------------
 2 files changed, 17 insertions(+), 13 deletions(-)

diff --git a/drivers/media/platform/exynos-gsc/gsc-core.h b/drivers/media/platform/exynos-gsc/gsc-core.h
index 76435d3bf62d..ef0a6564cef9 100644
--- a/drivers/media/platform/exynos-gsc/gsc-core.h
+++ b/drivers/media/platform/exynos-gsc/gsc-core.h
@@ -45,6 +45,7 @@
 #define GSC_DST_FMT			(1 << 2)
 #define GSC_CTX_M2M			(1 << 3)
 #define GSC_CTX_STOP_REQ		(1 << 6)
+#define	GSC_CTX_ABORT			(1 << 7)
 
 enum gsc_dev_flags {
 	/* for global */
diff --git a/drivers/media/platform/exynos-gsc/gsc-m2m.c b/drivers/media/platform/exynos-gsc/gsc-m2m.c
index e576ff2de3de..810c3e13970c 100644
--- a/drivers/media/platform/exynos-gsc/gsc-m2m.c
+++ b/drivers/media/platform/exynos-gsc/gsc-m2m.c
@@ -46,6 +46,17 @@ static int gsc_m2m_ctx_stop_req(struct gsc_ctx *ctx)
 	return ret == 0 ? -ETIMEDOUT : ret;
 }
 
+static void __gsc_m2m_job_abort(struct gsc_ctx *ctx)
+{
+	int ret;
+
+	ret = gsc_m2m_ctx_stop_req(ctx);
+	if ((ret == -ETIMEDOUT) || (ctx->state & GSC_CTX_ABORT)) {
+		gsc_ctx_state_lock_clear(GSC_CTX_STOP_REQ | GSC_CTX_ABORT, ctx);
+		gsc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR);
+	}
+}
+
 static int gsc_m2m_start_streaming(struct vb2_queue *q, unsigned int count)
 {
 	struct gsc_ctx *ctx = q->drv_priv;
@@ -58,11 +69,8 @@ static int gsc_m2m_start_streaming(struct vb2_queue *q, unsigned int count)
 static int gsc_m2m_stop_streaming(struct vb2_queue *q)
 {
 	struct gsc_ctx *ctx = q->drv_priv;
-	int ret;
 
-	ret = gsc_m2m_ctx_stop_req(ctx);
-	if (ret == -ETIMEDOUT)
-		gsc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR);
+	__gsc_m2m_job_abort(ctx);
 
 	pm_runtime_put(&ctx->gsc_dev->pdev->dev);
 
@@ -91,15 +99,9 @@ void gsc_m2m_job_finish(struct gsc_ctx *ctx, int vb_state)
 	}
 }
 
-
 static void gsc_m2m_job_abort(void *priv)
 {
-	struct gsc_ctx *ctx = priv;
-	int ret;
-
-	ret = gsc_m2m_ctx_stop_req(ctx);
-	if (ret == -ETIMEDOUT)
-		gsc_m2m_job_finish(ctx, VB2_BUF_STATE_ERROR);
+	__gsc_m2m_job_abort((struct gsc_ctx *)priv);
 }
 
 static int gsc_get_bufs(struct gsc_ctx *ctx)
@@ -150,9 +152,10 @@ static void gsc_m2m_device_run(void *priv)
 		gsc->m2m.ctx = ctx;
 	}
 
-	is_set = (ctx->state & GSC_CTX_STOP_REQ) ? 1 : 0;
-	ctx->state &= ~GSC_CTX_STOP_REQ;
+	is_set = ctx->state & GSC_CTX_STOP_REQ;
 	if (is_set) {
+		ctx->state &= ~GSC_CTX_STOP_REQ;
+		ctx->state |= GSC_CTX_ABORT;
 		wake_up(&gsc->irq_queue);
 		goto put_device;
 	}
-- 
cgit 


From 2ad5389b341282636644d917685029b4bb50553c Mon Sep 17 00:00:00 2001
From: Shaik Ameer Basha <shaik.ameer@samsung.com>
Date: Fri, 20 Sep 2013 03:26:18 -0300
Subject: [media] v4l2-mem2mem: Don't schedule the context if abort job is
 called

When the current context is running,
1] If release is called, it waits until the job is finished.
2] As soon as the job is finished, v4l2_mem_ctx_release()tries to
   release the vb2 queues.
3] But if the current context can be scheduled in the v4l2_m2m_job_finish()
   it schedules the context and tries to call device_run().
4] As the release() and device_run() sequence can't be predicted sometimes
   device_run() may get empty vb2 buffers.

This patch adds the ABORT state to the job_flags. Once the job_abort() or
release() is called on the context, the same context will not be scheduled in
the v4l2_m2m_job_finish().

Signed-off-by: Shaik Ameer Basha <shaik.ameer@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/v4l2-core/v4l2-mem2mem.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/media/v4l2-core/v4l2-mem2mem.c b/drivers/media/v4l2-core/v4l2-mem2mem.c
index 796de3349303..73035ee0f4de 100644
--- a/drivers/media/v4l2-core/v4l2-mem2mem.c
+++ b/drivers/media/v4l2-core/v4l2-mem2mem.c
@@ -41,6 +41,8 @@ module_param(debug, bool, 0644);
 #define TRANS_QUEUED		(1 << 0)
 /* Instance is currently running in hardware */
 #define TRANS_RUNNING		(1 << 1)
+/* Instance is currently aborting */
+#define TRANS_ABORT		(1 << 2)
 
 
 /* Offset base for buffers on the destination queue - used to distinguish
@@ -221,6 +223,14 @@ static void v4l2_m2m_try_schedule(struct v4l2_m2m_ctx *m2m_ctx)
 	}
 
 	spin_lock_irqsave(&m2m_dev->job_spinlock, flags_job);
+
+	/* If the context is aborted then don't schedule it */
+	if (m2m_ctx->job_flags & TRANS_ABORT) {
+		spin_unlock_irqrestore(&m2m_dev->job_spinlock, flags_job);
+		dprintk("Aborted context\n");
+		return;
+	}
+
 	if (m2m_ctx->job_flags & TRANS_QUEUED) {
 		spin_unlock_irqrestore(&m2m_dev->job_spinlock, flags_job);
 		dprintk("On job queue already\n");
@@ -280,6 +290,8 @@ static void v4l2_m2m_cancel_job(struct v4l2_m2m_ctx *m2m_ctx)
 
 	m2m_dev = m2m_ctx->m2m_dev;
 	spin_lock_irqsave(&m2m_dev->job_spinlock, flags);
+
+	m2m_ctx->job_flags |= TRANS_ABORT;
 	if (m2m_ctx->job_flags & TRANS_RUNNING) {
 		spin_unlock_irqrestore(&m2m_dev->job_spinlock, flags);
 		m2m_dev->m2m_ops->job_abort(m2m_ctx->priv);
-- 
cgit 


From 0cddc7e9a0dd4b77471889d436b4a4ed8d8385bb Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Mon, 30 Sep 2013 10:34:44 -0300
Subject: [media] coda: allow more than four instances on CODA7541

With the new firmware, there are not anymore four register sets,
but a single register set, which the driver has to conserve across
context switches. This allows to handle more than four instances
at the same time.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/coda.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index 449d2fec9e87..28055388f2e8 100644
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -39,7 +39,7 @@
 
 #define CODA_NAME		"coda"
 
-#define CODA_MAX_INSTANCES	4
+#define CODADX6_MAX_INSTANCES	4
 
 #define CODA_FMO_BUF_SIZE	32
 #define CODADX6_WORK_BUF_SIZE	(288 * 1024 + CODA_FMO_BUF_SIZE * 8 * 1024)
@@ -2371,7 +2371,13 @@ static int coda_queue_init(void *priv, struct vb2_queue *src_vq,
 
 static int coda_next_free_instance(struct coda_dev *dev)
 {
-	return ffz(dev->instance_mask);
+	int idx = ffz(dev->instance_mask);
+
+	if ((idx < 0) ||
+	    (dev->devtype->product == CODA_DX6 && idx > CODADX6_MAX_INSTANCES))
+		return -EBUSY;
+
+	return idx;
 }
 
 static int coda_open(struct file *file)
@@ -2386,8 +2392,8 @@ static int coda_open(struct file *file)
 		return -ENOMEM;
 
 	idx = coda_next_free_instance(dev);
-	if (idx >= CODA_MAX_INSTANCES) {
-		ret = -EBUSY;
+	if (idx < 0) {
+		ret = idx;
 		goto err_coda_max;
 	}
 	set_bit(idx, &dev->instance_mask);
-- 
cgit 


From b5dfd8075bc26636d11c3d8888940198afbf5112 Mon Sep 17 00:00:00 2001
From: Casey Schaufler <casey@schaufler-ca.com>
Date: Tue, 22 Oct 2013 11:47:45 -0700
Subject: Smack: Ptrace access check mode

When the ptrace security hooks were split the addition of
a mode parameter was not taken advantage of in the Smack
ptrace access check. This changes the access check from
always looking for read and write access to using the
passed mode. This will make use of /proc much happier.

Targeted for git://git.gitorious.org/smack-next/kernel.git

Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
---
 security/smack/smack_lsm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 88d366e55793..b0be893ad44d 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -185,7 +185,7 @@ static int smack_ptrace_access_check(struct task_struct *ctp, unsigned int mode)
 	smk_ad_init(&ad, __func__, LSM_AUDIT_DATA_TASK);
 	smk_ad_setfield_u_tsk(&ad, ctp);
 
-	rc = smk_curacc(skp->smk_known, MAY_READWRITE, &ad);
+	rc = smk_curacc(skp->smk_known, mode, &ad);
 	return rc;
 }
 
-- 
cgit 


From eb107516ed60dfcec25218e1becf66bb91eafe87 Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Mon, 30 Sep 2013 10:34:45 -0300
Subject: [media] coda: only set buffered input queue for decoder

Allow device_run with no buffers queued after streamoff only when
the current instance is a decoder.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
[k.debski@samsung.com: Add commit description]
Signed-off-by: Kamil Debski <k.debski@samsung.com>

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/coda.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index 28055388f2e8..945c53951791 100644
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -1928,8 +1928,9 @@ static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
 	if (!(ctx->streamon_out & ctx->streamon_cap))
 		return 0;
 
-	/* Allow device_run with no buffers queued and after streamoff */
-	v4l2_m2m_set_src_buffered(ctx->m2m_ctx, true);
+	/* Allow decoder device_run with no new buffers queued */
+	if (ctx->inst_type == CODA_INST_DECODER)
+		v4l2_m2m_set_src_buffered(ctx->m2m_ctx, true);
 
 	ctx->gopcounter = ctx->params.gop_size - 1;
 	buf = v4l2_m2m_next_dst_buf(ctx->m2m_ctx);
-- 
cgit 


From baf70211280c8ca7148d21bea7ea174a0d48b7ee Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Mon, 30 Sep 2013 10:34:46 -0300
Subject: [media] coda: add compressed flag to format enumeration output

Correctly flag compressed formats in the ENUM_FMT ioctl output.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/coda.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index 945c53951791..53539c1d99a4 100644
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -457,6 +457,8 @@ static int enum_fmt(void *priv, struct v4l2_fmtdesc *f,
 		fmt = &formats[i];
 		strlcpy(f->description, fmt->name, sizeof(f->description));
 		f->pixelformat = fmt->fourcc;
+		if (!coda_format_is_yuv(fmt->fourcc))
+			f->flags |= V4L2_FMT_FLAG_COMPRESSED;
 		return 0;
 	}
 
-- 
cgit 


From 0fd84dc80bfdcbe8345959100c8ad776dff75d5e Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Mon, 30 Sep 2013 10:34:47 -0300
Subject: [media] coda: fix FMO value setting for CodaDx6

The register is only written on CodaDx6, so the temporary variable
to be written only needs to be initialized on CodaDx6. Also, drop
two no-op lines.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/coda.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index 53539c1d99a4..5fe947c3b1f7 100644
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -2074,10 +2074,8 @@ static int coda_start_streaming(struct vb2_queue *q, unsigned int count)
 	coda_setup_iram(ctx);
 
 	if (dst_fourcc == V4L2_PIX_FMT_H264) {
-		value  = (FMO_SLICE_SAVE_BUF_SIZE << 7);
-		value |= (0 & CODA_FMOPARAM_TYPE_MASK) << CODA_FMOPARAM_TYPE_OFFSET;
-		value |=  0 & CODA_FMOPARAM_SLICENUM_MASK;
 		if (dev->devtype->product == CODA_DX6) {
+			value = FMO_SLICE_SAVE_BUF_SIZE << 7;
 			coda_write(dev, value, CODADX6_CMD_ENC_SEQ_FMO);
 		} else {
 			coda_write(dev, ctx->iram_info.search_ram_paddr,
-- 
cgit 


From 927933f7b4b213357813b394ca66f7a6ce3d28f2 Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Mon, 30 Sep 2013 10:34:48 -0300
Subject: [media] coda: move coda_product_name above vidioc_querycap

Use the product name (currently CodaDx6 or CODA7541)
to fill the v4l2_capabilities.name field.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/coda.c | 35 +++++++++++++++++++----------------
 1 file changed, 19 insertions(+), 16 deletions(-)

diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index 5fe947c3b1f7..e70a2728cd6b 100644
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -394,14 +394,32 @@ static struct coda_codec *coda_find_codec(struct coda_dev *dev, int src_fourcc,
 	return &codecs[k];
 }
 
+static char *coda_product_name(int product)
+{
+	static char buf[9];
+
+	switch (product) {
+	case CODA_DX6:
+		return "CodaDx6";
+	case CODA_7541:
+		return "CODA7541";
+	default:
+		snprintf(buf, sizeof(buf), "(0x%04x)", product);
+		return buf;
+	}
+}
+
 /*
  * V4L2 ioctl() operations.
  */
 static int vidioc_querycap(struct file *file, void *priv,
 			   struct v4l2_capability *cap)
 {
+	struct coda_ctx *ctx = fh_to_ctx(priv);
+
 	strlcpy(cap->driver, CODA_NAME, sizeof(cap->driver));
-	strlcpy(cap->card, CODA_NAME, sizeof(cap->card));
+	strlcpy(cap->card, coda_product_name(ctx->dev->devtype->product),
+		sizeof(cap->card));
 	strlcpy(cap->bus_info, "platform:" CODA_NAME, sizeof(cap->bus_info));
 	/*
 	 * This is only a mem-to-mem video device. The capture and output
@@ -2868,21 +2886,6 @@ static bool coda_firmware_supported(u32 vernum)
 	return false;
 }
 
-static char *coda_product_name(int product)
-{
-	static char buf[9];
-
-	switch (product) {
-	case CODA_DX6:
-		return "CodaDx6";
-	case CODA_7541:
-		return "CODA7541";
-	default:
-		snprintf(buf, sizeof(buf), "(0x%04x)", product);
-		return buf;
-	}
-}
-
 static int coda_hw_init(struct coda_dev *dev)
 {
 	u16 product, major, minor, release;
-- 
cgit 


From 5166028d480c82f9a4d443db7c1a707f8aea285a Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Mon, 30 Sep 2013 10:34:49 -0300
Subject: [media] coda: use picture type returned from hardware

Instead of copying v4l2_buf.flags from the source buffer, set
the destination buffer flags as reported by the hardware codec.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/coda.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index e70a2728cd6b..82049f858d5c 100644
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -2744,7 +2744,6 @@ static void coda_finish_encode(struct coda_ctx *ctx)
 	dst_buf = v4l2_m2m_dst_buf_remove(ctx->m2m_ctx);
 
 	/* Get results from the coda */
-	coda_read(dev, CODA_RET_ENC_PIC_TYPE);
 	start_ptr = coda_read(dev, CODA_CMD_ENC_PIC_BB_START);
 	wr_ptr = coda_read(dev, CODA_REG_BIT_WR_PTR(ctx->reg_idx));
 
@@ -2764,7 +2763,7 @@ static void coda_finish_encode(struct coda_ctx *ctx)
 	coda_read(dev, CODA_RET_ENC_PIC_SLICE_NUM);
 	coda_read(dev, CODA_RET_ENC_PIC_FLAG);
 
-	if (src_buf->v4l2_buf.flags & V4L2_BUF_FLAG_KEYFRAME) {
+	if (coda_read(dev, CODA_RET_ENC_PIC_TYPE) == 0) {
 		dst_buf->v4l2_buf.flags |= V4L2_BUF_FLAG_KEYFRAME;
 		dst_buf->v4l2_buf.flags &= ~V4L2_BUF_FLAG_PFRAME;
 	} else {
-- 
cgit 


From 2e9e4f1182a001f263a2908c5f0115eacb3bd104 Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Mon, 30 Sep 2013 10:34:50 -0300
Subject: [media] coda: prefix v4l2_ioctl_ops with coda_ instead of vidioc_

Moving the ioctl handler callbacks into the coda namespace helps
tremendously to make sense of backtraces.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
[k.debski@samsung.com: fix whitespace error near coda_subscribe_event]
Signed-off-by: Kamil Debski <k.debski@samsung.com>

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/coda.c | 123 +++++++++++++++++++++---------------------
 1 file changed, 63 insertions(+), 60 deletions(-)

diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index 82049f858d5c..6ddcf8ba5f76 100644
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -412,8 +412,8 @@ static char *coda_product_name(int product)
 /*
  * V4L2 ioctl() operations.
  */
-static int vidioc_querycap(struct file *file, void *priv,
-			   struct v4l2_capability *cap)
+static int coda_querycap(struct file *file, void *priv,
+			 struct v4l2_capability *cap)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 
@@ -484,8 +484,8 @@ static int enum_fmt(void *priv, struct v4l2_fmtdesc *f,
 	return -EINVAL;
 }
 
-static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
-				   struct v4l2_fmtdesc *f)
+static int coda_enum_fmt_vid_cap(struct file *file, void *priv,
+				 struct v4l2_fmtdesc *f)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 	struct vb2_queue *src_vq;
@@ -503,13 +503,14 @@ static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
 	return enum_fmt(priv, f, V4L2_BUF_TYPE_VIDEO_CAPTURE, 0);
 }
 
-static int vidioc_enum_fmt_vid_out(struct file *file, void *priv,
-				   struct v4l2_fmtdesc *f)
+static int coda_enum_fmt_vid_out(struct file *file, void *priv,
+				 struct v4l2_fmtdesc *f)
 {
 	return enum_fmt(priv, f, V4L2_BUF_TYPE_VIDEO_OUTPUT, 0);
 }
 
-static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
+static int coda_g_fmt(struct file *file, void *priv,
+		      struct v4l2_format *f)
 {
 	struct vb2_queue *vq;
 	struct coda_q_data *q_data;
@@ -536,7 +537,7 @@ static int vidioc_g_fmt(struct file *file, void *priv, struct v4l2_format *f)
 	return 0;
 }
 
-static int vidioc_try_fmt(struct coda_codec *codec, struct v4l2_format *f)
+static int coda_try_fmt(struct coda_codec *codec, struct v4l2_format *f)
 {
 	unsigned int max_w, max_h;
 	enum v4l2_field field;
@@ -575,8 +576,8 @@ static int vidioc_try_fmt(struct coda_codec *codec, struct v4l2_format *f)
 	return 0;
 }
 
-static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
-				  struct v4l2_format *f)
+static int coda_try_fmt_vid_cap(struct file *file, void *priv,
+				struct v4l2_format *f)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 	struct coda_codec *codec;
@@ -604,7 +605,7 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 
 	f->fmt.pix.colorspace = ctx->colorspace;
 
-	ret = vidioc_try_fmt(codec, f);
+	ret = coda_try_fmt(codec, f);
 	if (ret < 0)
 		return ret;
 
@@ -620,8 +621,8 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 	return 0;
 }
 
-static int vidioc_try_fmt_vid_out(struct file *file, void *priv,
-				  struct v4l2_format *f)
+static int coda_try_fmt_vid_out(struct file *file, void *priv,
+				struct v4l2_format *f)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 	struct coda_codec *codec;
@@ -633,10 +634,10 @@ static int vidioc_try_fmt_vid_out(struct file *file, void *priv,
 	if (!f->fmt.pix.colorspace)
 		f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
 
-	return vidioc_try_fmt(codec, f);
+	return coda_try_fmt(codec, f);
 }
 
-static int vidioc_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f)
+static int coda_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f)
 {
 	struct coda_q_data *q_data;
 	struct vb2_queue *vq;
@@ -666,61 +667,62 @@ static int vidioc_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f)
 	return 0;
 }
 
-static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
-				struct v4l2_format *f)
+static int coda_s_fmt_vid_cap(struct file *file, void *priv,
+			      struct v4l2_format *f)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 	int ret;
 
-	ret = vidioc_try_fmt_vid_cap(file, priv, f);
+	ret = coda_try_fmt_vid_cap(file, priv, f);
 	if (ret)
 		return ret;
 
-	return vidioc_s_fmt(ctx, f);
+	return coda_s_fmt(ctx, f);
 }
 
-static int vidioc_s_fmt_vid_out(struct file *file, void *priv,
-				struct v4l2_format *f)
+static int coda_s_fmt_vid_out(struct file *file, void *priv,
+			      struct v4l2_format *f)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 	int ret;
 
-	ret = vidioc_try_fmt_vid_out(file, priv, f);
+	ret = coda_try_fmt_vid_out(file, priv, f);
 	if (ret)
 		return ret;
 
-	ret = vidioc_s_fmt(ctx, f);
+	ret = coda_s_fmt(ctx, f);
 	if (ret)
 		ctx->colorspace = f->fmt.pix.colorspace;
 
 	return ret;
 }
 
-static int vidioc_reqbufs(struct file *file, void *priv,
-			  struct v4l2_requestbuffers *reqbufs)
+static int coda_reqbufs(struct file *file, void *priv,
+			struct v4l2_requestbuffers *reqbufs)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 
 	return v4l2_m2m_reqbufs(file, ctx->m2m_ctx, reqbufs);
 }
 
-static int vidioc_querybuf(struct file *file, void *priv,
-			   struct v4l2_buffer *buf)
+static int coda_querybuf(struct file *file, void *priv,
+			 struct v4l2_buffer *buf)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 
 	return v4l2_m2m_querybuf(file, ctx->m2m_ctx, buf);
 }
 
-static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+static int coda_qbuf(struct file *file, void *priv,
+		     struct v4l2_buffer *buf)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 
 	return v4l2_m2m_qbuf(file, ctx->m2m_ctx, buf);
 }
 
-static int vidioc_expbuf(struct file *file, void *priv,
-			 struct v4l2_exportbuffer *eb)
+static int coda_expbuf(struct file *file, void *priv,
+		       struct v4l2_exportbuffer *eb)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 
@@ -738,7 +740,8 @@ static bool coda_buf_is_end_of_stream(struct coda_ctx *ctx,
 		(buf->sequence == (ctx->qsequence - 1)));
 }
 
-static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
+static int coda_dqbuf(struct file *file, void *priv,
+		      struct v4l2_buffer *buf)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 	int ret;
@@ -758,24 +761,24 @@ static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *buf)
 	return ret;
 }
 
-static int vidioc_create_bufs(struct file *file, void *priv,
-			      struct v4l2_create_buffers *create)
+static int coda_create_bufs(struct file *file, void *priv,
+			    struct v4l2_create_buffers *create)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 
 	return v4l2_m2m_create_bufs(file, ctx->m2m_ctx, create);
 }
 
-static int vidioc_streamon(struct file *file, void *priv,
-			   enum v4l2_buf_type type)
+static int coda_streamon(struct file *file, void *priv,
+			 enum v4l2_buf_type type)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 
 	return v4l2_m2m_streamon(file, ctx->m2m_ctx, type);
 }
 
-static int vidioc_streamoff(struct file *file, void *priv,
-			    enum v4l2_buf_type type)
+static int coda_streamoff(struct file *file, void *priv,
+			  enum v4l2_buf_type type)
 {
 	struct coda_ctx *ctx = fh_to_ctx(priv);
 	int ret;
@@ -792,8 +795,8 @@ static int vidioc_streamoff(struct file *file, void *priv,
 	return ret;
 }
 
-static int vidioc_decoder_cmd(struct file *file, void *fh,
-			      struct v4l2_decoder_cmd *dc)
+static int coda_decoder_cmd(struct file *file, void *fh,
+				   struct v4l2_decoder_cmd *dc)
 {
 	struct coda_ctx *ctx = fh_to_ctx(fh);
 
@@ -816,8 +819,8 @@ static int vidioc_decoder_cmd(struct file *file, void *fh,
 	return 0;
 }
 
-static int vidioc_subscribe_event(struct v4l2_fh *fh,
-				  const struct v4l2_event_subscription *sub)
+static int coda_subscribe_event(struct v4l2_fh *fh,
+				const struct v4l2_event_subscription *sub)
 {
 	switch (sub->type) {
 	case V4L2_EVENT_EOS:
@@ -828,32 +831,32 @@ static int vidioc_subscribe_event(struct v4l2_fh *fh,
 }
 
 static const struct v4l2_ioctl_ops coda_ioctl_ops = {
-	.vidioc_querycap	= vidioc_querycap,
+	.vidioc_querycap	= coda_querycap,
 
-	.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
-	.vidioc_g_fmt_vid_cap	= vidioc_g_fmt,
-	.vidioc_try_fmt_vid_cap	= vidioc_try_fmt_vid_cap,
-	.vidioc_s_fmt_vid_cap	= vidioc_s_fmt_vid_cap,
+	.vidioc_enum_fmt_vid_cap = coda_enum_fmt_vid_cap,
+	.vidioc_g_fmt_vid_cap	= coda_g_fmt,
+	.vidioc_try_fmt_vid_cap	= coda_try_fmt_vid_cap,
+	.vidioc_s_fmt_vid_cap	= coda_s_fmt_vid_cap,
 
-	.vidioc_enum_fmt_vid_out = vidioc_enum_fmt_vid_out,
-	.vidioc_g_fmt_vid_out	= vidioc_g_fmt,
-	.vidioc_try_fmt_vid_out	= vidioc_try_fmt_vid_out,
-	.vidioc_s_fmt_vid_out	= vidioc_s_fmt_vid_out,
+	.vidioc_enum_fmt_vid_out = coda_enum_fmt_vid_out,
+	.vidioc_g_fmt_vid_out	= coda_g_fmt,
+	.vidioc_try_fmt_vid_out	= coda_try_fmt_vid_out,
+	.vidioc_s_fmt_vid_out	= coda_s_fmt_vid_out,
 
-	.vidioc_reqbufs		= vidioc_reqbufs,
-	.vidioc_querybuf	= vidioc_querybuf,
+	.vidioc_reqbufs		= coda_reqbufs,
+	.vidioc_querybuf	= coda_querybuf,
 
-	.vidioc_qbuf		= vidioc_qbuf,
-	.vidioc_expbuf		= vidioc_expbuf,
-	.vidioc_dqbuf		= vidioc_dqbuf,
-	.vidioc_create_bufs	= vidioc_create_bufs,
+	.vidioc_qbuf		= coda_qbuf,
+	.vidioc_expbuf		= coda_expbuf,
+	.vidioc_dqbuf		= coda_dqbuf,
+	.vidioc_create_bufs	= coda_create_bufs,
 
-	.vidioc_streamon	= vidioc_streamon,
-	.vidioc_streamoff	= vidioc_streamoff,
+	.vidioc_streamon	= coda_streamon,
+	.vidioc_streamoff	= coda_streamoff,
 
-	.vidioc_decoder_cmd	= vidioc_decoder_cmd,
+	.vidioc_decoder_cmd	= coda_decoder_cmd,
 
-	.vidioc_subscribe_event = vidioc_subscribe_event,
+	.vidioc_subscribe_event = coda_subscribe_event,
 	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
 };
 
-- 
cgit 


From 57625593589b51fbe713bcf3dbc97a8d92c2277f Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Mon, 30 Sep 2013 10:34:51 -0300
Subject: [media] coda: v4l2-compliance fix: overwrite invalid pixel formats
 with the current setting

This patch fixes the v4l2-compliance "TRY_FMT(G_FMT) != G_FMT" issue.
The driver now overwrites invalid formats with the current setting, using
coda_get_max_dimensions to find device specific max width/height.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/coda.c | 72 +++++++++++++++++++++++++++++++++----------
 1 file changed, 56 insertions(+), 16 deletions(-)

diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index 6ddcf8ba5f76..4820bd57ed40 100644
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -54,8 +54,6 @@
 
 #define CODA_MAX_FRAMEBUFFERS	8
 
-#define MAX_W		8192
-#define MAX_H		8192
 #define CODA_MAX_FRAME_SIZE	0x100000
 #define FMO_SLICE_SAVE_BUF_SIZE         (32)
 #define CODA_DEFAULT_GAMMA		4096
@@ -394,6 +392,31 @@ static struct coda_codec *coda_find_codec(struct coda_dev *dev, int src_fourcc,
 	return &codecs[k];
 }
 
+static void coda_get_max_dimensions(struct coda_dev *dev,
+				    struct coda_codec *codec,
+				    int *max_w, int *max_h)
+{
+	struct coda_codec *codecs = dev->devtype->codecs;
+	int num_codecs = dev->devtype->num_codecs;
+	unsigned int w, h;
+	int k;
+
+	if (codec) {
+		w = codec->max_w;
+		h = codec->max_h;
+	} else {
+		for (k = 0, w = 0, h = 0; k < num_codecs; k++) {
+			w = max(w, codecs[k].max_w);
+			h = max(h, codecs[k].max_h);
+		}
+	}
+
+	if (max_w)
+		*max_w = w;
+	if (max_h)
+		*max_h = h;
+}
+
 static char *coda_product_name(int product)
 {
 	static char buf[9];
@@ -537,8 +560,11 @@ static int coda_g_fmt(struct file *file, void *priv,
 	return 0;
 }
 
-static int coda_try_fmt(struct coda_codec *codec, struct v4l2_format *f)
+static int coda_try_fmt(struct coda_ctx *ctx, struct coda_codec *codec,
+			struct v4l2_format *f)
 {
+	struct coda_dev *dev = ctx->dev;
+	struct coda_q_data *q_data;
 	unsigned int max_w, max_h;
 	enum v4l2_field field;
 
@@ -552,25 +578,39 @@ static int coda_try_fmt(struct coda_codec *codec, struct v4l2_format *f)
 	 * if any of the dimensions is unsupported */
 	f->fmt.pix.field = field;
 
-	if (codec) {
-		max_w = codec->max_w;
-		max_h = codec->max_h;
-	} else {
-		max_w = MAX_W;
-		max_h = MAX_H;
+	coda_get_max_dimensions(dev, codec, &max_w, &max_h);
+	v4l_bound_align_image(&f->fmt.pix.width, MIN_W, max_w, W_ALIGN,
+			      &f->fmt.pix.height, MIN_H, max_h, H_ALIGN,
+			      S_ALIGN);
+
+	switch (f->fmt.pix.pixelformat) {
+	case V4L2_PIX_FMT_YUV420:
+	case V4L2_PIX_FMT_YVU420:
+	case V4L2_PIX_FMT_H264:
+	case V4L2_PIX_FMT_MPEG4:
+	case V4L2_PIX_FMT_JPEG:
+		break;
+	default:
+		q_data = get_q_data(ctx, f->type);
+		f->fmt.pix.pixelformat = q_data->fourcc;
 	}
-	v4l_bound_align_image(&f->fmt.pix.width, MIN_W, max_w,
-			      W_ALIGN, &f->fmt.pix.height,
-			      MIN_H, max_h, H_ALIGN, S_ALIGN);
 
-	if (coda_format_is_yuv(f->fmt.pix.pixelformat)) {
+	switch (f->fmt.pix.pixelformat) {
+	case V4L2_PIX_FMT_YUV420:
+	case V4L2_PIX_FMT_YVU420:
 		/* Frame stride must be multiple of 8 */
 		f->fmt.pix.bytesperline = round_up(f->fmt.pix.width, 8);
 		f->fmt.pix.sizeimage = f->fmt.pix.bytesperline *
 					f->fmt.pix.height * 3 / 2;
-	} else { /*encoded formats h.264/mpeg4 */
+		break;
+	case V4L2_PIX_FMT_H264:
+	case V4L2_PIX_FMT_MPEG4:
+	case V4L2_PIX_FMT_JPEG:
 		f->fmt.pix.bytesperline = 0;
 		f->fmt.pix.sizeimage = CODA_MAX_FRAME_SIZE;
+		break;
+	default:
+		BUG();
 	}
 
 	return 0;
@@ -605,7 +645,7 @@ static int coda_try_fmt_vid_cap(struct file *file, void *priv,
 
 	f->fmt.pix.colorspace = ctx->colorspace;
 
-	ret = coda_try_fmt(codec, f);
+	ret = coda_try_fmt(ctx, codec, f);
 	if (ret < 0)
 		return ret;
 
@@ -634,7 +674,7 @@ static int coda_try_fmt_vid_out(struct file *file, void *priv,
 	if (!f->fmt.pix.colorspace)
 		f->fmt.pix.colorspace = V4L2_COLORSPACE_REC709;
 
-	return coda_try_fmt(codec, f);
+	return coda_try_fmt(ctx, codec, f);
 }
 
 static int coda_s_fmt(struct coda_ctx *ctx, struct v4l2_format *f)
-- 
cgit 


From 64ba40accce3e6bb916a36390d3e202085804da8 Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Mon, 30 Sep 2013 10:34:52 -0300
Subject: [media] coda: v4l2-compliance fix: implement try_decoder_cmd

Implement try_decoder_cmd to let userspace determine available commands
and flags.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/coda.c | 28 ++++++++++++++++++++--------
 1 file changed, 20 insertions(+), 8 deletions(-)

diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index 4820bd57ed40..b541c069ffe9 100644
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -835,23 +835,34 @@ static int coda_streamoff(struct file *file, void *priv,
 	return ret;
 }
 
-static int coda_decoder_cmd(struct file *file, void *fh,
-				   struct v4l2_decoder_cmd *dc)
+static int coda_try_decoder_cmd(struct file *file, void *fh,
+				struct v4l2_decoder_cmd *dc)
 {
-	struct coda_ctx *ctx = fh_to_ctx(fh);
-
 	if (dc->cmd != V4L2_DEC_CMD_STOP)
 		return -EINVAL;
 
-	if ((dc->flags & V4L2_DEC_CMD_STOP_TO_BLACK) ||
-	    (dc->flags & V4L2_DEC_CMD_STOP_IMMEDIATELY))
+	if (dc->flags & V4L2_DEC_CMD_STOP_TO_BLACK)
 		return -EINVAL;
 
-	if (dc->stop.pts != 0)
+	if (!(dc->flags & V4L2_DEC_CMD_STOP_IMMEDIATELY) && (dc->stop.pts != 0))
 		return -EINVAL;
 
+	return 0;
+}
+
+static int coda_decoder_cmd(struct file *file, void *fh,
+			    struct v4l2_decoder_cmd *dc)
+{
+	struct coda_ctx *ctx = fh_to_ctx(fh);
+	int ret;
+
+	ret = coda_try_decoder_cmd(file, fh, dc);
+	if (ret < 0)
+		return ret;
+
+	/* Ignore decoder stop command silently in encoder context */
 	if (ctx->inst_type != CODA_INST_DECODER)
-		return -EINVAL;
+		return 0;
 
 	/* Set the strem-end flag on this context */
 	ctx->bit_stream_param |= CODA_BIT_STREAM_END_FLAG;
@@ -894,6 +905,7 @@ static const struct v4l2_ioctl_ops coda_ioctl_ops = {
 	.vidioc_streamon	= coda_streamon,
 	.vidioc_streamoff	= coda_streamoff,
 
+	.vidioc_try_decoder_cmd	= coda_try_decoder_cmd,
 	.vidioc_decoder_cmd	= coda_decoder_cmd,
 
 	.vidioc_subscribe_event = coda_subscribe_event,
-- 
cgit 


From 72548e836b0c4abbb652e791dee9c91203a9a4c6 Mon Sep 17 00:00:00 2001
From: Matt Fleming <matt.fleming@intel.com>
Date: Fri, 4 Oct 2013 09:36:56 +0100
Subject: x86/efi: Add EFI framebuffer earlyprintk support

It's incredibly difficult to diagnose early EFI boot issues without
special hardware because earlyprintk=vga doesn't work on EFI systems.

Add support for writing to the EFI framebuffer, via earlyprintk=efi,
which will actually give users a chance of providing debug output.

Cc: H. Peter Anvin <hpa@zytor.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Jones <pjones@redhat.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 Documentation/kernel-parameters.txt  |   8 +-
 arch/x86/Kconfig.debug               |  10 ++
 arch/x86/include/asm/efi.h           |   2 +
 arch/x86/kernel/early_printk.c       |   7 ++
 arch/x86/platform/efi/Makefile       |   1 +
 arch/x86/platform/efi/early_printk.c | 191 +++++++++++++++++++++++++++++++++++
 6 files changed, 216 insertions(+), 3 deletions(-)
 create mode 100644 arch/x86/platform/efi/early_printk.c

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 7f9d4f53882c..7a0f202d482e 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -792,6 +792,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 
 	earlyprintk=	[X86,SH,BLACKFIN,ARM]
 			earlyprintk=vga
+			earlyprintk=efi
 			earlyprintk=xen
 			earlyprintk=serial[,ttySn[,baudrate]]
 			earlyprintk=serial[,0x...[,baudrate]]
@@ -805,7 +806,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			Append ",keep" to not disable it when the real console
 			takes over.
 
-			Only vga or serial or usb debug port at a time.
+			Only one of vga, efi, serial, or usb debug port can
+			be used at a time.
 
 			Currently only ttyS0 and ttyS1 may be specified by
 			name.  Other I/O ports may be explicitly specified
@@ -819,8 +821,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			Interaction with the standard serial driver is not
 			very good.
 
-			The VGA output is eventually overwritten by the real
-			console.
+			The VGA and EFI output is eventually overwritten by
+			the real console.
 
 			The xen output can only be used by Xen PV guests.
 
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug
index 78d91afb8e50..0f3621ed1db6 100644
--- a/arch/x86/Kconfig.debug
+++ b/arch/x86/Kconfig.debug
@@ -59,6 +59,16 @@ config EARLY_PRINTK_DBGP
 	  with klogd/syslogd or the X server. You should normally N here,
 	  unless you want to debug such a crash. You need usb debug device.
 
+config EARLY_PRINTK_EFI
+	bool "Early printk via the EFI framebuffer"
+	depends on EFI && EARLY_PRINTK
+	select FONT_SUPPORT
+	---help---
+	  Write kernel log output directly into the EFI framebuffer.
+
+	  This is useful for kernel debugging when your machine crashes very
+	  early before the console code is initialized.
+
 config X86_PTDUMP
 	bool "Export kernel pagetable layout to userspace via debugfs"
 	depends on DEBUG_KERNEL
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index 0062a0125041..65c6e6e3a552 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -109,6 +109,8 @@ static inline bool efi_is_native(void)
 	return IS_ENABLED(CONFIG_X86_64) == efi_enabled(EFI_64BIT);
 }
 
+extern struct console early_efi_console;
+
 #else
 /*
  * IF EFI is not configured, have the EFI calls return -ENOSYS.
diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
index d15f575a861b..6d3d20073615 100644
--- a/arch/x86/kernel/early_printk.c
+++ b/arch/x86/kernel/early_printk.c
@@ -17,6 +17,8 @@
 #include <asm/mrst.h>
 #include <asm/pgtable.h>
 #include <linux/usb/ehci_def.h>
+#include <linux/efi.h>
+#include <asm/efi.h>
 
 /* Simple VGA output */
 #define VGABASE		(__ISA_IO_base + 0xb8000)
@@ -234,6 +236,11 @@ static int __init setup_early_printk(char *buf)
 			early_console_register(&early_hsu_console, keep);
 		}
 #endif
+#ifdef CONFIG_EARLY_PRINTK_EFI
+		if (!strncmp(buf, "efi", 3))
+			early_console_register(&early_efi_console, keep);
+#endif
+
 		buf++;
 	}
 	return 0;
diff --git a/arch/x86/platform/efi/Makefile b/arch/x86/platform/efi/Makefile
index 6db1cc4c7534..b7b0b35c1981 100644
--- a/arch/x86/platform/efi/Makefile
+++ b/arch/x86/platform/efi/Makefile
@@ -1,2 +1,3 @@
 obj-$(CONFIG_EFI) 		+= efi.o efi_$(BITS).o efi_stub_$(BITS).o
 obj-$(CONFIG_ACPI_BGRT) += efi-bgrt.o
+obj-$(CONFIG_EARLY_PRINTK_EFI)	+= early_printk.o
diff --git a/arch/x86/platform/efi/early_printk.c b/arch/x86/platform/efi/early_printk.c
new file mode 100644
index 000000000000..6599a0027b76
--- /dev/null
+++ b/arch/x86/platform/efi/early_printk.c
@@ -0,0 +1,191 @@
+/*
+ * Copyright (C) 2013 Intel Corporation; author Matt Fleming
+ *
+ *  This file is part of the Linux kernel, and is made available under
+ *  the terms of the GNU General Public License version 2.
+ */
+
+#include <linux/console.h>
+#include <linux/efi.h>
+#include <linux/font.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <asm/setup.h>
+
+static const struct font_desc *font;
+static u32 efi_x, efi_y;
+
+static __init void early_efi_clear_scanline(unsigned int y)
+{
+	unsigned long base, *dst;
+	u16 len;
+
+	base = boot_params.screen_info.lfb_base;
+	len = boot_params.screen_info.lfb_linelength;
+
+	dst = early_ioremap(base + y*len, len);
+	if (!dst)
+		return;
+
+	memset(dst, 0, len);
+	early_iounmap(dst, len);
+}
+
+static __init void early_efi_scroll_up(void)
+{
+	unsigned long base, *dst, *src;
+	u16 len;
+	u32 i, height;
+
+	base = boot_params.screen_info.lfb_base;
+	len = boot_params.screen_info.lfb_linelength;
+	height = boot_params.screen_info.lfb_height;
+
+	for (i = 0; i < height - font->height; i++) {
+		dst = early_ioremap(base + i*len, len);
+		if (!dst)
+			return;
+
+		src = early_ioremap(base + (i + font->height) * len, len);
+		if (!src) {
+			early_iounmap(dst, len);
+			return;
+		}
+
+		memmove(dst, src, len);
+
+		early_iounmap(src, len);
+		early_iounmap(dst, len);
+	}
+}
+
+static void early_efi_write_char(u32 *dst, unsigned char c, unsigned int h)
+{
+	const u32 color_black = 0x00000000;
+	const u32 color_white = 0x00ffffff;
+	const u8 *src;
+	u8 s8;
+	int m;
+
+	src = font->data + c * font->height;
+	s8 = *(src + h);
+
+	for (m = 0; m < 8; m++) {
+		if ((s8 >> (7 - m)) & 1)
+			*dst = color_white;
+		else
+			*dst = color_black;
+		dst++;
+	}
+}
+
+static __init void
+early_efi_write(struct console *con, const char *str, unsigned int num)
+{
+	struct screen_info *si;
+	unsigned long base;
+	unsigned int len;
+	const char *s;
+	void *dst;
+
+	base = boot_params.screen_info.lfb_base;
+	si = &boot_params.screen_info;
+	len = si->lfb_linelength;
+
+	while (num) {
+		unsigned int linemax;
+		unsigned int h, count = 0;
+
+		for (s = str; *s && *s != '\n'; s++) {
+			if (count == num)
+				break;
+			count++;
+		}
+
+		linemax = (si->lfb_width - efi_x) / font->width;
+		if (count > linemax)
+			count = linemax;
+
+		for (h = 0; h < font->height; h++) {
+			unsigned int n, x;
+
+			dst = early_ioremap(base + (efi_y + h) * len, len);
+			if (!dst)
+				return;
+
+			s = str;
+			n = count;
+			x = efi_x;
+
+			while (n-- > 0) {
+				early_efi_write_char(dst + x*4, *s, h);
+				x += font->width;
+				s++;
+			}
+
+			early_iounmap(dst, len);
+		}
+
+		num -= count;
+		efi_x += count * font->width;
+		str += count;
+
+		if (num > 0 && *s == '\n') {
+			efi_x = 0;
+			efi_y += font->height;
+			str++;
+			num--;
+		}
+
+		if (efi_x >= si->lfb_width) {
+			efi_x = 0;
+			efi_y += font->height;
+		}
+
+		if (efi_y + font->height >= si->lfb_height) {
+			u32 i;
+
+			efi_y -= font->height;
+			early_efi_scroll_up();
+
+			for (i = 0; i < font->height; i++)
+				early_efi_clear_scanline(efi_y + i);
+		}
+	}
+}
+
+static __init int early_efi_setup(struct console *con, char *options)
+{
+	struct screen_info *si;
+	u16 xres, yres;
+	u32 i;
+
+	si = &boot_params.screen_info;
+	xres = si->lfb_width;
+	yres = si->lfb_height;
+
+	/*
+	 * early_efi_write_char() implicitly assumes a framebuffer with
+	 * 32-bits per pixel.
+	 */
+	if (si->lfb_depth != 32)
+		return -ENODEV;
+
+	font = get_default_font(xres, yres, -1, -1);
+	if (!font)
+		return -ENODEV;
+
+	efi_y = rounddown(yres, font->height) - font->height;
+	for (i = 0; i < (yres - efi_y) / font->height; i++)
+		early_efi_scroll_up();
+
+	return 0;
+}
+
+struct console early_efi_console = {
+	.name =		"earlyefi",
+	.write =	early_efi_write,
+	.setup =	early_efi_setup,
+	.flags =	CON_PRINTBUFFER,
+	.index =	-1,
+};
-- 
cgit 


From 3660cd4322fce986689b06225d9c12d77193c252 Mon Sep 17 00:00:00 2001
From: Andy Adamson <andros@netapp.com>
Date: Thu, 3 Oct 2013 12:23:24 -0400
Subject: NFSv4 Remove zeroing state kern warnings

As of commit 5d422301f97b821301efcdb6fc9d1a83a5c102d6 we no longer zero the
state.

Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4state.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index cc14cbb78b73..fa2706a4225a 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1375,8 +1375,8 @@ static int nfs4_reclaim_locks(struct nfs4_state *state, const struct nfs4_state_
 			case -NFS4ERR_CONN_NOT_BOUND_TO_SESSION:
 				goto out;
 			default:
-				printk(KERN_ERR "NFS: %s: unhandled error %d. "
-					"Zeroing state\n", __func__, status);
+				printk(KERN_ERR "NFS: %s: unhandled error %d\n",
+					 __func__, status);
 			case -ENOMEM:
 			case -NFS4ERR_DENIED:
 			case -NFS4ERR_RECLAIM_BAD:
@@ -1439,15 +1439,12 @@ restart:
 		}
 		switch (status) {
 			default:
-				printk(KERN_ERR "NFS: %s: unhandled error %d. "
-					"Zeroing state\n", __func__, status);
+				printk(KERN_ERR "NFS: %s: unhandled error %d\n",
+					__func__, status);
 			case -ENOENT:
 			case -ENOMEM:
 			case -ESTALE:
-				/*
-				 * Open state on this file cannot be recovered
-				 * All we can do is revert to using the zero stateid.
-				 */
+				/* Open state on this file cannot be recovered */
 				nfs4_state_mark_recovery_failed(state, status);
 				break;
 			case -EAGAIN:
-- 
cgit 


From 57acc40d73407159727b3a1456f0a498133831ba Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@redhat.com>
Date: Fri, 18 Oct 2013 10:03:37 -0400
Subject: nfs: reject version and minorversion changes on remount attempts

Reported-by: Eric Doutreleau <edoutreleau@genoscope.cns.fr>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/super.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index a03b9c6f9489..137572bb7037 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2143,6 +2143,8 @@ nfs_compare_remount_data(struct nfs_server *nfss,
 	if (data->flags != nfss->flags ||
 	    data->rsize != nfss->rsize ||
 	    data->wsize != nfss->wsize ||
+	    data->version != nfss->nfs_client->rpc_ops->version ||
+	    data->minorversion != nfss->nfs_client->cl_minorversion ||
 	    data->retrans != nfss->client->cl_timeout->to_retries ||
 	    data->auth_flavors[0] != nfss->client->cl_auth->au_flavor ||
 	    data->acregmin != nfss->acregmin / HZ ||
@@ -2197,6 +2199,8 @@ nfs_remount(struct super_block *sb, int *flags, char *raw_data)
 	data->timeo = 10U * nfss->client->cl_timeout->to_initval / HZ;
 	data->nfs_server.port = nfss->port;
 	data->nfs_server.addrlen = nfss->nfs_client->cl_addrlen;
+	data->version = nfsvers;
+	data->minorversion = nfss->nfs_client->cl_minorversion;
 	memcpy(&data->nfs_server.address, &nfss->nfs_client->cl_addr,
 		data->nfs_server.addrlen);
 
-- 
cgit 


From 1966903f8e28b31ff82de2e2180f0c066399288d Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@redhat.com>
Date: Mon, 21 Oct 2013 09:52:19 -0400
Subject: nfs: fix handling of invalid mount options in nfs_remount

nfs_parse_mount_options returns 0 on error, not -errno.

Reported-by: Karel Zak <kzak@redhat.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/super.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 137572bb7037..3f5a7a85c9c2 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2205,8 +2205,8 @@ nfs_remount(struct super_block *sb, int *flags, char *raw_data)
 		data->nfs_server.addrlen);
 
 	/* overwrite those values with any that were specified */
-	error = nfs_parse_mount_options((char *)options, data);
-	if (error < 0)
+	error = -EINVAL;
+	if (!nfs_parse_mount_options((char *)options, data))
 		goto out;
 
 	/*
-- 
cgit 


From 83c78eb0425f587a34a6644da79bdcde987dc974 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Mon, 28 Oct 2013 14:50:38 -0400
Subject: NFSv4.1: Don't change the security label as part of open reclaim.

The current caching model calls for the security label to be set on
first lookup and/or on any subsequent label changes. There is no
need to do it as part of an open reclaim.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4proc.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index d2b4845ecb4d..8dd61eb86f6f 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1337,8 +1337,6 @@ _nfs4_opendata_reclaim_to_nfs4_state(struct nfs4_opendata *data)
 	if (ret)
 		goto err;
 
-	nfs_setsecurity(inode, &data->f_attr, data->f_label);
-
 	if (data->o_res.delegation_type != 0)
 		nfs4_opendata_check_deleg(data, state);
 	update_open_stateid(state, &data->o_res.stateid, NULL,
-- 
cgit 


From 867f1edbcca970f6ec6d797764dbd165f4e528ab Mon Sep 17 00:00:00 2001
From: Philipp Zabel <p.zabel@pengutronix.de>
Date: Mon, 30 Sep 2013 10:34:53 -0300
Subject: [media] coda: v4l2-compliance fix: zero pixel format priv field

If unused, the pixel format priv field has to be cleared by the driver
in try_fmt.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/coda.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index b541c069ffe9..ed4998c224f8 100644
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -613,6 +613,8 @@ static int coda_try_fmt(struct coda_ctx *ctx, struct coda_codec *codec,
 		BUG();
 	}
 
+	f->fmt.pix.priv = 0;
+
 	return 0;
 }
 
-- 
cgit 


From e94363440a7e5b65e3695da8fac63f139d0d903b Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 30 Sep 2013 11:12:22 -0300
Subject: [media] platform: Kconfig: Select SRAM for VIDEO_CODA

Running the coda driver without CONFIG_SRAM selected leads to the following
probe error:
coda 63ff4000.vpu: iram pool not available
coda: probe of 63ff4000.vpu failed with error -12
In order to avoid it, select CONFIG_SRAM inside VIDEO_CODA.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig
index 2405ef7c6604..3d9beef60325 100644
--- a/drivers/media/platform/Kconfig
+++ b/drivers/media/platform/Kconfig
@@ -143,6 +143,7 @@ if V4L_MEM2MEM_DRIVERS
 config VIDEO_CODA
 	tristate "Chips&Media Coda multi-standard codec IP"
 	depends on VIDEO_DEV && VIDEO_V4L2 && ARCH_MXC
+	select SRAM
 	select VIDEOBUF2_DMA_CONTIG
 	select V4L2_MEM2MEM_DEV
 	---help---
-- 
cgit 


From d6950c47218579180b69fef482402094a7a7fbda Mon Sep 17 00:00:00 2001
From: Arun Kumar K <arun.kk@samsung.com>
Date: Fri, 4 Oct 2013 01:20:05 -0300
Subject: [media] s5p-mfc: Adjust the default values of some encoder params

The patch sets the default values of MAX_QP and GOP size encoder
parameters to some firmware recommended default values. This enables
the applications to get a better encoded output using the default
settings itself.

Signed-off-by: Kiran AVND <avnd.kiran@samsung.com>
Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/s5p-mfc/s5p_mfc_enc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c b/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c
index 41f5a3c10dbd..4ff3b6cd6842 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc_enc.c
@@ -113,7 +113,7 @@ static struct mfc_control controls[] = {
 		.minimum = 0,
 		.maximum = (1 << 16) - 1,
 		.step = 1,
-		.default_value = 0,
+		.default_value = 12,
 	},
 	{
 		.id = V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE,
@@ -356,7 +356,7 @@ static struct mfc_control controls[] = {
 		.minimum = 0,
 		.maximum = 51,
 		.step = 1,
-		.default_value = 1,
+		.default_value = 51,
 	},
 	{
 		.id = V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP,
@@ -399,7 +399,7 @@ static struct mfc_control controls[] = {
 		.minimum = 1,
 		.maximum = 31,
 		.step = 1,
-		.default_value = 1,
+		.default_value = 31,
 	},
 	{
 		.id = V4L2_CID_MPEG_VIDEO_H263_P_FRAME_QP,
@@ -444,7 +444,7 @@ static struct mfc_control controls[] = {
 		.minimum = 0,
 		.maximum = 51,
 		.step = 1,
-		.default_value = 1,
+		.default_value = 51,
 	},
 	{
 		.id = V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP,
-- 
cgit 


From 76a4ddbd52d5c62c54afd03c0d9092045351911f Mon Sep 17 00:00:00 2001
From: Prathyush K <prathyush.k@samsung.com>
Date: Fri, 4 Oct 2013 01:47:19 -0300
Subject: [media] s5p-mfc: call wake_up_dev if in suspend mode

If a frame is still decoding when system enters suspend mode, we wait
on the device queue for a interrupt condition. This sometimes leads to a
timeout because the device queue might not be woken up everytime.
Usually, the context queue gets woken up when that context's frame gets
decoded. This patch adds a condition to wake up the device queue along
with the context queue when the system is in suspend mode.
Since the device queue is now woken up, we don't have to check the
context's int_cond flag while waiting. Also, we can skip calling try_run
after waking up the device queue to ensure that we don't have to wait
for more than one frame to be processed.

Signed-off-by: Prathyush K <prathyush.k@samsung.com>
Signed-off-by: Arun Mankuzhi <arun.m@samsung.com>
Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/s5p-mfc/s5p_mfc.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c
index 084263dd126f..bec0f61c7b7c 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c
@@ -404,7 +404,11 @@ leave_handle_frame:
 	if (test_and_clear_bit(0, &dev->hw_lock) == 0)
 		BUG();
 	s5p_mfc_clock_off();
-	s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
+	/* if suspending, wake up device and do not try_run again*/
+	if (test_bit(0, &dev->enter_suspend))
+		wake_up_dev(dev, reason, err);
+	else
+		s5p_mfc_hw_call(dev->mfc_ops, try_run, dev);
 }
 
 /* Error handling for interrupt */
@@ -1286,9 +1290,7 @@ static int s5p_mfc_suspend(struct device *dev)
 		/* Try and lock the HW */
 		/* Wait on the interrupt waitqueue */
 		ret = wait_event_interruptible_timeout(m_dev->queue,
-			m_dev->int_cond || m_dev->ctx[m_dev->curr_ctx]->int_cond,
-			msecs_to_jiffies(MFC_INT_TIMEOUT));
-
+			m_dev->int_cond, msecs_to_jiffies(MFC_INT_TIMEOUT));
 		if (ret == 0) {
 			mfc_err("Waiting for hardware to finish timed out\n");
 			return -EIO;
-- 
cgit 


From 1957f0d71c5a6dc8c6f2435ec477ec777d080603 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 02:58:39 -0300
Subject: [media] s5p-mfc: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag
It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/s5p-mfc/s5p_mfc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/s5p-mfc/s5p_mfc.c b/drivers/media/platform/s5p-mfc/s5p_mfc.c
index bec0f61c7b7c..5f2c4ad6c2cb 100644
--- a/drivers/media/platform/s5p-mfc/s5p_mfc.c
+++ b/drivers/media/platform/s5p-mfc/s5p_mfc.c
@@ -1105,7 +1105,7 @@ static int s5p_mfc_probe(struct platform_device *pdev)
 	}
 	dev->irq = res->start;
 	ret = devm_request_irq(&pdev->dev, dev->irq, s5p_mfc_irq,
-					IRQF_DISABLED, pdev->name, dev);
+					0, pdev->name, dev);
 	if (ret) {
 		dev_err(&pdev->dev, "Failed to install irq (%d)\n", ret);
 		goto err_res;
-- 
cgit 


From f494a6071d31e3294a3b51ad7a3684f983953f9f Mon Sep 17 00:00:00 2001
From: Weston Andros Adamson <dros@netapp.com>
Date: Mon, 21 Oct 2013 13:10:10 -0400
Subject: NFSv4: fix NULL dereference in open recover

_nfs4_opendata_reclaim_to_nfs4_state doesn't expect to see a cached
open CLAIM_PREVIOUS, but this can happen. An example is when there are
RDWR openers and RDONLY openers on a delegation stateid. The recovery
path will first try an open CLAIM_PREVIOUS for the RDWR openers, this
marks the delegation as not needing RECLAIM anymore, so the open
CLAIM_PREVIOUS for the RDONLY openers will not actually send an rpc.

The NULL dereference is due to _nfs4_opendata_reclaim_to_nfs4_state
returning PTR_ERR(rpc_status) when !rpc_done. When the open is
cached, rpc_done == 0 and rpc_status == 0, thus
_nfs4_opendata_reclaim_to_nfs4_state returns NULL - this is unexpected
by callers of nfs4_opendata_to_nfs4_state().

This can be reproduced easily by opening the same file two times on an
NFSv4.0 mount with delegations enabled, once as RDWR and once as RDONLY then
sleeping for a long time.  While the files are held open, kick off state
recovery and this NULL dereference will be hit every time.

An example OOPS:

[   65.003602] BUG: unable to handle kernel NULL pointer dereference at 00000000
00000030
[   65.005312] IP: [<ffffffffa037d6ee>] __nfs4_close+0x1e/0x160 [nfsv4]
[   65.006820] PGD 7b0ea067 PUD 791ff067 PMD 0
[   65.008075] Oops: 0000 [#1] SMP
[   65.008802] Modules linked in: rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache
snd_ens1371 gameport nfsd snd_rawmidi snd_ac97_codec ac97_bus btusb snd_seq snd
_seq_device snd_pcm ppdev bluetooth auth_rpcgss coretemp snd_page_alloc crc32_pc
lmul crc32c_intel ghash_clmulni_intel microcode rfkill nfs_acl vmw_balloon serio
_raw snd_timer lockd parport_pc e1000 snd soundcore parport i2c_piix4 shpchp vmw
_vmci sunrpc ata_generic mperf pata_acpi mptspi vmwgfx ttm scsi_transport_spi dr
m mptscsih mptbase i2c_core
[   65.018684] CPU: 0 PID: 473 Comm: 192.168.10.85-m Not tainted 3.11.2-201.fc19
.x86_64 #1
[   65.020113] Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop
Reference Platform, BIOS 6.00 07/31/2013
[   65.022012] task: ffff88003707e320 ti: ffff88007b906000 task.ti: ffff88007b906000
[   65.023414] RIP: 0010:[<ffffffffa037d6ee>]  [<ffffffffa037d6ee>] __nfs4_close+0x1e/0x160 [nfsv4]
[   65.025079] RSP: 0018:ffff88007b907d10  EFLAGS: 00010246
[   65.026042] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
[   65.027321] RDX: 0000000000000050 RSI: 0000000000000001 RDI: 0000000000000000
[   65.028691] RBP: ffff88007b907d38 R08: 0000000000016f60 R09: 0000000000000000
[   65.029990] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
[   65.031295] R13: 0000000000000050 R14: 0000000000000000 R15: 0000000000000001
[   65.032527] FS:  0000000000000000(0000) GS:ffff88007f600000(0000) knlGS:0000000000000000
[   65.033981] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   65.035177] CR2: 0000000000000030 CR3: 000000007b27f000 CR4: 00000000000407f0
[   65.036568] Stack:
[   65.037011]  0000000000000000 0000000000000001 ffff88007b907d90 ffff88007a880220
[   65.038472]  ffff88007b768de8 ffff88007b907d48 ffffffffa037e4a5 ffff88007b907d80
[   65.039935]  ffffffffa036a6c8 ffff880037020e40 ffff88007a880000 ffff880037020e40
[   65.041468] Call Trace:
[   65.042050]  [<ffffffffa037e4a5>] nfs4_close_state+0x15/0x20 [nfsv4]
[   65.043209]  [<ffffffffa036a6c8>] nfs4_open_recover_helper+0x148/0x1f0 [nfsv4]
[   65.044529]  [<ffffffffa036a886>] nfs4_open_recover+0x116/0x150 [nfsv4]
[   65.045730]  [<ffffffffa036d98d>] nfs4_open_reclaim+0xad/0x150 [nfsv4]
[   65.046905]  [<ffffffffa037d979>] nfs4_do_reclaim+0x149/0x5f0 [nfsv4]
[   65.048071]  [<ffffffffa037e1dc>] nfs4_run_state_manager+0x3bc/0x670 [nfsv4]
[   65.049436]  [<ffffffffa037de20>] ? nfs4_do_reclaim+0x5f0/0x5f0 [nfsv4]
[   65.050686]  [<ffffffffa037de20>] ? nfs4_do_reclaim+0x5f0/0x5f0 [nfsv4]
[   65.051943]  [<ffffffff81088640>] kthread+0xc0/0xd0
[   65.052831]  [<ffffffff81088580>] ? insert_kthread_work+0x40/0x40
[   65.054697]  [<ffffffff8165686c>] ret_from_fork+0x7c/0xb0
[   65.056396]  [<ffffffff81088580>] ? insert_kthread_work+0x40/0x40
[   65.058208] Code: 5c 41 5d 5d c3 0f 1f 84 00 00 00 00 00 66 66 66 66 90 55 48 89 e5 41 57 41 89 f7 41 56 41 89 ce 41 55 41 89 d5 41 54 53 48 89 fb <4c> 8b 67 30 f0 41 ff 44 24 44 49 8d 7c 24 40 e8 0e 0a 2d e1 44
[   65.065225] RIP  [<ffffffffa037d6ee>] __nfs4_close+0x1e/0x160 [nfsv4]
[   65.067175]  RSP <ffff88007b907d10>
[   65.068570] CR2: 0000000000000030
[   65.070098] ---[ end trace 0d1fe4f5c7dd6f8b ]---

Cc: <stable@vger.kernel.org> #3.7+
Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4proc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 8dd61eb86f6f..acd20c549ce2 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1317,7 +1317,8 @@ _nfs4_opendata_reclaim_to_nfs4_state(struct nfs4_opendata *data)
 	struct nfs4_state *state = data->state;
 	int ret;
 
-	if (!data->rpc_done) {
+	/* allow cached opens (!rpc_done && !rpc_status) */
+	if (!data->rpc_done && data->rpc_status) {
 		ret = data->rpc_status;
 		goto err;
 	}
-- 
cgit 


From a43ec98b72aae3e330f0673438f58316c3769b84 Mon Sep 17 00:00:00 2001
From: Weston Andros Adamson <dros@netapp.com>
Date: Mon, 21 Oct 2013 13:10:11 -0400
Subject: NFSv4: don't fail on missing fattr in open recover

This is an unneeded check that could cause the client to fail to recover
opens.

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4proc.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index acd20c549ce2..e76fd218ec8e 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1323,12 +1323,6 @@ _nfs4_opendata_reclaim_to_nfs4_state(struct nfs4_opendata *data)
 		goto err;
 	}
 
-	ret = -ESTALE;
-	if (!(data->f_attr.valid & NFS_ATTR_FATTR_TYPE) ||
-	    !(data->f_attr.valid & NFS_ATTR_FATTR_FILEID) ||
-	    !(data->f_attr.valid & NFS_ATTR_FATTR_CHANGE))
-		goto err;
-
 	ret = -ENOMEM;
 	state = nfs4_get_open_state(inode, data->owner);
 	if (state == NULL)
-- 
cgit 


From d49f042aeec99c5f87160bb52dd52088b1051311 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Mon, 28 Oct 2013 14:57:12 -0400
Subject: NFSv4: Fix state reference counting in
 _nfs4_opendata_reclaim_to_nfs4_state

Currently, if the call to nfs_refresh_inode fails, then we end up leaking
a reference count, due to the call to nfs4_get_open_state.
While we're at it, replace nfs4_get_open_state with a simple call to
atomic_inc(); there is no need to do a full lookup of the struct nfs_state
since it is passed as an argument in the struct nfs4_opendata, and
is already assigned to the variable 'state'.

Cc: stable@vger.kernel.org # 3.7.x: a43ec98b72a: NFSv4: don't fail on missing
Cc: stable@vger.kernel.org # 3.7.x
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4proc.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index e76fd218ec8e..d3c4255be6e0 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1323,11 +1323,6 @@ _nfs4_opendata_reclaim_to_nfs4_state(struct nfs4_opendata *data)
 		goto err;
 	}
 
-	ret = -ENOMEM;
-	state = nfs4_get_open_state(inode, data->owner);
-	if (state == NULL)
-		goto err;
-
 	ret = nfs_refresh_inode(inode, &data->f_attr);
 	if (ret)
 		goto err;
@@ -1336,6 +1331,7 @@ _nfs4_opendata_reclaim_to_nfs4_state(struct nfs4_opendata *data)
 		nfs4_opendata_check_deleg(data, state);
 	update_open_stateid(state, &data->o_res.stateid, NULL,
 			    data->o_arg.fmode);
+	atomic_inc(&state->count);
 
 	return state;
 err:
-- 
cgit 


From d2bfda2e7aa036f90ccea610a657064b1e267913 Mon Sep 17 00:00:00 2001
From: Weston Andros Adamson <dros@netapp.com>
Date: Mon, 21 Oct 2013 13:10:13 -0400
Subject: NFSv4: don't reprocess cached open CLAIM_PREVIOUS

Cached opens have already been handled by _nfs4_opendata_reclaim_to_nfs4_state
and can safely skip being reprocessed, but must still call update_open_stateid
to make sure that all active fmodes are recovered.

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Cc: stable@vger.kernel.org # 3.7.x: f494a6071d3: NFSv4: fix NULL dereference
Cc: stable@vger.kernel.org # 3.7.x: a43ec98b72a: NFSv4: don't fail on missin
Cc: stable@vger.kernel.org # 3.7.x
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4proc.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index d3c4255be6e0..259f8beb96a3 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1317,10 +1317,13 @@ _nfs4_opendata_reclaim_to_nfs4_state(struct nfs4_opendata *data)
 	struct nfs4_state *state = data->state;
 	int ret;
 
-	/* allow cached opens (!rpc_done && !rpc_status) */
-	if (!data->rpc_done && data->rpc_status) {
-		ret = data->rpc_status;
-		goto err;
+	if (!data->rpc_done) {
+		if (data->rpc_status) {
+			ret = data->rpc_status;
+			goto err;
+		}
+		/* cached opens have already been processed */
+		goto update;
 	}
 
 	ret = nfs_refresh_inode(inode, &data->f_attr);
@@ -1329,6 +1332,7 @@ _nfs4_opendata_reclaim_to_nfs4_state(struct nfs4_opendata *data)
 
 	if (data->o_res.delegation_type != 0)
 		nfs4_opendata_check_deleg(data, state);
+update:
 	update_open_stateid(state, &data->o_res.stateid, NULL,
 			    data->o_arg.fmode);
 	atomic_inc(&state->count);
-- 
cgit 


From d746e54522e52275865ca23917c16b3fdc226e51 Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 14:12:17 -0400
Subject: SUNRPC: Modify synopsis of rpc_client_register()

The rpc_client_register() helper was added in commit e73f4cc0,
"SUNRPC: split client creation routine into setup and registration,"
Mon Jun 24 11:52:52 2013.  In a subsequent patch, I'd like to invoke
rpc_client_register() from a context where a struct rpc_create_args
is not available.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 net/sunrpc/clnt.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 7352aef8a254..587f31e0577e 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -272,12 +272,13 @@ static void rpc_clnt_set_nodename(struct rpc_clnt *clnt, const char *nodename)
 	memcpy(clnt->cl_nodename, nodename, clnt->cl_nodelen);
 }
 
-static int rpc_client_register(const struct rpc_create_args *args,
-			       struct rpc_clnt *clnt)
+static int rpc_client_register(struct rpc_clnt *clnt,
+			       rpc_authflavor_t pseudoflavor,
+			       const char *client_name)
 {
 	struct rpc_auth_create_args auth_args = {
-		.pseudoflavor = args->authflavor,
-		.target_name = args->client_name,
+		.pseudoflavor = pseudoflavor,
+		.target_name = client_name,
 	};
 	struct rpc_auth *auth;
 	struct net *net = rpc_net_ns(clnt);
@@ -298,7 +299,7 @@ static int rpc_client_register(const struct rpc_create_args *args,
 	auth = rpcauth_create(&auth_args, clnt);
 	if (IS_ERR(auth)) {
 		dprintk("RPC:       Couldn't create auth handle (flavor %u)\n",
-				args->authflavor);
+				pseudoflavor);
 		err = PTR_ERR(auth);
 		goto err_auth;
 	}
@@ -398,7 +399,7 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args,
 	/* save the nodename */
 	rpc_clnt_set_nodename(clnt, utsname()->nodename);
 
-	err = rpc_client_register(args, clnt);
+	err = rpc_client_register(clnt, args->authflavor, args->client_name);
 	if (err)
 		goto out_no_path;
 	if (parent)
-- 
cgit 


From 40b00b6b17c412ff9ff28631250d32ee29ff0006 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Thu, 17 Oct 2013 14:12:23 -0400
Subject: SUNRPC: Add a helper to switch the transport of an rpc_clnt

Add an RPC client API to redirect an rpc_clnt's transport from a
source server to a destination server during a migration event.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
[ cel: forward ported to 3.12 ]
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 include/linux/sunrpc/clnt.h |   4 ++
 net/sunrpc/clnt.c           | 107 +++++++++++++++++++++++++++++++++++++++++---
 2 files changed, 104 insertions(+), 7 deletions(-)

diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index 943ee895f2d1..8af2804bab16 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -136,6 +136,10 @@ void rpc_task_reset_client(struct rpc_task *task, struct rpc_clnt *clnt);
 struct rpc_clnt *rpc_clone_client(struct rpc_clnt *);
 struct rpc_clnt *rpc_clone_client_set_auth(struct rpc_clnt *,
 				rpc_authflavor_t);
+int		rpc_switch_client_transport(struct rpc_clnt *,
+				struct xprt_create *,
+				const struct rpc_timeout *);
+
 void		rpc_shutdown_client(struct rpc_clnt *);
 void		rpc_release_client(struct rpc_clnt *);
 void		rpc_task_release_client(struct rpc_task *);
diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 587f31e0577e..f167d9c8d7dd 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -25,6 +25,7 @@
 #include <linux/namei.h>
 #include <linux/mount.h>
 #include <linux/slab.h>
+#include <linux/rcupdate.h>
 #include <linux/utsname.h>
 #include <linux/workqueue.h>
 #include <linux/in.h>
@@ -264,6 +265,25 @@ void rpc_clients_notifier_unregister(void)
 	return rpc_pipefs_notifier_unregister(&rpc_clients_block);
 }
 
+static struct rpc_xprt *rpc_clnt_set_transport(struct rpc_clnt *clnt,
+		struct rpc_xprt *xprt,
+		const struct rpc_timeout *timeout)
+{
+	struct rpc_xprt *old;
+
+	spin_lock(&clnt->cl_lock);
+	old = clnt->cl_xprt;
+
+	if (!xprt_bound(xprt))
+		clnt->cl_autobind = 1;
+
+	clnt->cl_timeout = timeout;
+	rcu_assign_pointer(clnt->cl_xprt, xprt);
+	spin_unlock(&clnt->cl_lock);
+
+	return old;
+}
+
 static void rpc_clnt_set_nodename(struct rpc_clnt *clnt, const char *nodename)
 {
 	clnt->cl_nodelen = strlen(nodename);
@@ -338,7 +358,8 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args,
 {
 	const struct rpc_program *program = args->program;
 	const struct rpc_version *version;
-	struct rpc_clnt		*clnt = NULL;
+	struct rpc_clnt *clnt = NULL;
+	const struct rpc_timeout *timeout;
 	int err;
 
 	/* sanity check the name before trying to print it */
@@ -366,7 +387,6 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args,
 	if (err)
 		goto out_no_clid;
 
-	rcu_assign_pointer(clnt->cl_xprt, xprt);
 	clnt->cl_procinfo = version->procs;
 	clnt->cl_maxproc  = version->nrprocs;
 	clnt->cl_prog     = args->prognumber ? : program->number;
@@ -381,16 +401,15 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args,
 	INIT_LIST_HEAD(&clnt->cl_tasks);
 	spin_lock_init(&clnt->cl_lock);
 
-	if (!xprt_bound(xprt))
-		clnt->cl_autobind = 1;
-
-	clnt->cl_timeout = xprt->timeout;
+	timeout = xprt->timeout;
 	if (args->timeout != NULL) {
 		memcpy(&clnt->cl_timeout_default, args->timeout,
 				sizeof(clnt->cl_timeout_default));
-		clnt->cl_timeout = &clnt->cl_timeout_default;
+		timeout = &clnt->cl_timeout_default;
 	}
 
+	rpc_clnt_set_transport(clnt, xprt, timeout);
+
 	clnt->cl_rtt = &clnt->cl_rtt_default;
 	rpc_init_rtt(&clnt->cl_rtt_default, clnt->cl_timeout->to_initval);
 
@@ -601,6 +620,80 @@ rpc_clone_client_set_auth(struct rpc_clnt *clnt, rpc_authflavor_t flavor)
 }
 EXPORT_SYMBOL_GPL(rpc_clone_client_set_auth);
 
+/**
+ * rpc_switch_client_transport: switch the RPC transport on the fly
+ * @clnt: pointer to a struct rpc_clnt
+ * @args: pointer to the new transport arguments
+ * @timeout: pointer to the new timeout parameters
+ *
+ * This function allows the caller to switch the RPC transport for the
+ * rpc_clnt structure 'clnt' to allow it to connect to a mirrored NFS
+ * server, for instance.  It assumes that the caller has ensured that
+ * there are no active RPC tasks by using some form of locking.
+ *
+ * Returns zero if "clnt" is now using the new xprt.  Otherwise a
+ * negative errno is returned, and "clnt" continues to use the old
+ * xprt.
+ */
+int rpc_switch_client_transport(struct rpc_clnt *clnt,
+		struct xprt_create *args,
+		const struct rpc_timeout *timeout)
+{
+	const struct rpc_timeout *old_timeo;
+	rpc_authflavor_t pseudoflavor;
+	struct rpc_xprt *xprt, *old;
+	struct rpc_clnt *parent;
+	int err;
+
+	xprt = xprt_create_transport(args);
+	if (IS_ERR(xprt)) {
+		dprintk("RPC:       failed to create new xprt for clnt %p\n",
+			clnt);
+		return PTR_ERR(xprt);
+	}
+
+	pseudoflavor = clnt->cl_auth->au_flavor;
+
+	old_timeo = clnt->cl_timeout;
+	old = rpc_clnt_set_transport(clnt, xprt, timeout);
+
+	rpc_unregister_client(clnt);
+	__rpc_clnt_remove_pipedir(clnt);
+
+	/*
+	 * A new transport was created.  "clnt" therefore
+	 * becomes the root of a new cl_parent tree.  clnt's
+	 * children, if it has any, still point to the old xprt.
+	 */
+	parent = clnt->cl_parent;
+	clnt->cl_parent = clnt;
+
+	/*
+	 * The old rpc_auth cache cannot be re-used.  GSS
+	 * contexts in particular are between a single
+	 * client and server.
+	 */
+	err = rpc_client_register(clnt, pseudoflavor, NULL);
+	if (err)
+		goto out_revert;
+
+	synchronize_rcu();
+	if (parent != clnt)
+		rpc_release_client(parent);
+	xprt_put(old);
+	dprintk("RPC:       replaced xprt for clnt %p\n", clnt);
+	return 0;
+
+out_revert:
+	rpc_clnt_set_transport(clnt, old, old_timeo);
+	clnt->cl_parent = parent;
+	rpc_client_register(clnt, pseudoflavor, NULL);
+	xprt_put(xprt);
+	dprintk("RPC:       failed to switch xprt for clnt %p\n", clnt);
+	return err;
+}
+EXPORT_SYMBOL_GPL(rpc_switch_client_transport);
+
 /*
  * Kill all tasks for the given client.
  * XXX: kill their descendants as well?
-- 
cgit 


From 32e62b7c3ef095eccbb6a8c96fddf05dacc749df Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 14:12:28 -0400
Subject: NFS: Add nfs4_update_server

New function nfs4_update_server() moves an nfs_server to a different
nfs_client.  This is done as part of migration recovery.

Though it may be appealing to think of them as the same thing,
migration recovery is not the same as following a referral.

For a referral, the client has not descended into the file system
yet: it has no nfs_server, no super block, no inodes or open state.
It is enough to simply instantiate the nfs_server and super block,
and perform a referral mount.

For a migration, however, we have all of those things already, and
they have to be moved to a different nfs_client.  No local namespace
changes are needed here.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/client.c     |   3 +-
 fs/nfs/internal.h   |   3 ++
 fs/nfs/nfs4client.c | 108 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 113 insertions(+), 1 deletion(-)

diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index af0325864df6..692fd0e9362f 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -945,7 +945,7 @@ void nfs_server_insert_lists(struct nfs_server *server)
 }
 EXPORT_SYMBOL_GPL(nfs_server_insert_lists);
 
-static void nfs_server_remove_lists(struct nfs_server *server)
+void nfs_server_remove_lists(struct nfs_server *server)
 {
 	struct nfs_client *clp = server->nfs_client;
 	struct nfs_net *nn;
@@ -962,6 +962,7 @@ static void nfs_server_remove_lists(struct nfs_server *server)
 
 	synchronize_rcu();
 }
+EXPORT_SYMBOL_GPL(nfs_server_remove_lists);
 
 /*
  * Allocate and initialise a server record
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 38da8c2b81ac..e5a6bd12562a 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -154,6 +154,7 @@ struct nfs_client *nfs_get_client(const struct nfs_client_initdata *,
 				  rpc_authflavor_t);
 int nfs_probe_fsinfo(struct nfs_server *server, struct nfs_fh *, struct nfs_fattr *);
 void nfs_server_insert_lists(struct nfs_server *);
+void nfs_server_remove_lists(struct nfs_server *);
 void nfs_init_timeout_values(struct rpc_timeout *, int, unsigned int, unsigned int);
 int nfs_init_server_rpcclient(struct nfs_server *, const struct rpc_timeout *t,
 		rpc_authflavor_t);
@@ -174,6 +175,8 @@ extern struct nfs_server *nfs4_create_server(
 					struct nfs_subversion *);
 extern struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *,
 						      struct nfs_fh *);
+extern int nfs4_update_server(struct nfs_server *server, const char *hostname,
+					struct sockaddr *sap, size_t salen);
 extern void nfs_free_server(struct nfs_server *server);
 extern struct nfs_server *nfs_clone_server(struct nfs_server *,
 					   struct nfs_fh *,
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index 511cdce6ecf2..c6eee812337f 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -1092,3 +1092,111 @@ error:
 	dprintk("<-- nfs4_create_referral_server() = error %d\n", error);
 	return ERR_PTR(error);
 }
+
+/*
+ * Grab the destination's particulars, including lease expiry time.
+ *
+ * Returns zero if probe succeeded and retrieved FSID matches the FSID
+ * we have cached.
+ */
+static int nfs_probe_destination(struct nfs_server *server)
+{
+	struct inode *inode = server->super->s_root->d_inode;
+	struct nfs_fattr *fattr;
+	int error;
+
+	fattr = nfs_alloc_fattr();
+	if (fattr == NULL)
+		return -ENOMEM;
+
+	/* Sanity: the probe won't work if the destination server
+	 * does not recognize the migrated FH. */
+	error = nfs_probe_fsinfo(server, NFS_FH(inode), fattr);
+
+	nfs_free_fattr(fattr);
+	return error;
+}
+
+/**
+ * nfs4_update_server - Move an nfs_server to a different nfs_client
+ *
+ * @server: represents FSID to be moved
+ * @hostname: new end-point's hostname
+ * @sap: new end-point's socket address
+ * @salen: size of "sap"
+ *
+ * The nfs_server must be quiescent before this function is invoked.
+ * Either its session is drained (NFSv4.1+), or its transport is
+ * plugged and drained (NFSv4.0).
+ *
+ * Returns zero on success, or a negative errno value.
+ */
+int nfs4_update_server(struct nfs_server *server, const char *hostname,
+		       struct sockaddr *sap, size_t salen)
+{
+	struct nfs_client *clp = server->nfs_client;
+	struct rpc_clnt *clnt = server->client;
+	struct xprt_create xargs = {
+		.ident		= clp->cl_proto,
+		.net		= &init_net,
+		.dstaddr	= sap,
+		.addrlen	= salen,
+		.servername	= hostname,
+	};
+	char buf[INET6_ADDRSTRLEN + 1];
+	struct sockaddr_storage address;
+	struct sockaddr *localaddr = (struct sockaddr *)&address;
+	int error;
+
+	dprintk("--> %s: move FSID %llx:%llx to \"%s\")\n", __func__,
+			(unsigned long long)server->fsid.major,
+			(unsigned long long)server->fsid.minor,
+			hostname);
+
+	error = rpc_switch_client_transport(clnt, &xargs, clnt->cl_timeout);
+	if (error != 0) {
+		dprintk("<-- %s(): rpc_switch_client_transport returned %d\n",
+			__func__, error);
+		goto out;
+	}
+
+	error = rpc_localaddr(clnt, localaddr, sizeof(address));
+	if (error != 0) {
+		dprintk("<-- %s(): rpc_localaddr returned %d\n",
+			__func__, error);
+		goto out;
+	}
+
+	error = -EAFNOSUPPORT;
+	if (rpc_ntop(localaddr, buf, sizeof(buf)) == 0) {
+		dprintk("<-- %s(): rpc_ntop returned %d\n",
+			__func__, error);
+		goto out;
+	}
+
+	nfs_server_remove_lists(server);
+	error = nfs4_set_client(server, hostname, sap, salen, buf,
+				clp->cl_rpcclient->cl_auth->au_flavor,
+				clp->cl_proto, clnt->cl_timeout,
+				clp->cl_minorversion, clp->cl_net);
+	nfs_put_client(clp);
+	if (error != 0) {
+		nfs_server_insert_lists(server);
+		dprintk("<-- %s(): nfs4_set_client returned %d\n",
+			__func__, error);
+		goto out;
+	}
+
+	if (server->nfs_client->cl_hostname == NULL)
+		server->nfs_client->cl_hostname = kstrdup(hostname, GFP_KERNEL);
+	nfs_server_insert_lists(server);
+
+	error = nfs_probe_destination(server);
+	if (error < 0)
+		goto out;
+
+	dprintk("<-- %s() succeeded\n", __func__);
+
+out:
+	return error;
+}
-- 
cgit 


From 800c06a5bf497e0587ba8382a761f31a7825e2cd Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 14:12:34 -0400
Subject: NFS: Add functions to swap transports during migration recovery

Introduce functions that can walk through an array of returned
fs_locations information and connect a transport to one of the
destination servers listed therein.

Note that NFS minor version 1 introduces "fs_locations_info" which
extends the locations array sorting criteria available to clients.
This is not supported yet.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4_fs.h       |   2 +
 fs/nfs/nfs4namespace.c | 101 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 103 insertions(+)

diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 28842abafab4..fcae7289d557 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -217,6 +217,8 @@ rpc_authflavor_t nfs_find_best_sec(struct nfs4_secinfo_flavors *);
 struct rpc_clnt *nfs4_create_sec_client(struct rpc_clnt *, struct inode *, struct qstr *);
 struct vfsmount *nfs4_submount(struct nfs_server *, struct dentry *,
 			       struct nfs_fh *, struct nfs_fattr *);
+int nfs4_replace_transport(struct nfs_server *server,
+				const struct nfs4_fs_locations *locations);
 
 /* nfs4proc.c */
 extern int nfs4_proc_setclientid(struct nfs_client *, u32, unsigned short, struct rpc_cred *, struct nfs4_setclientid_res *);
diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c
index 2288cd3c9278..ebd8b064843b 100644
--- a/fs/nfs/nfs4namespace.c
+++ b/fs/nfs/nfs4namespace.c
@@ -400,3 +400,104 @@ out:
 	rpc_shutdown_client(client);
 	return mnt;
 }
+
+/*
+ * Try one location from the fs_locations array.
+ *
+ * Returns zero on success, or a negative errno value.
+ */
+static int nfs4_try_replacing_one_location(struct nfs_server *server,
+		char *page, char *page2,
+		const struct nfs4_fs_location *location)
+{
+	const size_t addr_bufsize = sizeof(struct sockaddr_storage);
+	struct sockaddr *sap;
+	unsigned int s;
+	size_t salen;
+	int error;
+
+	sap = kmalloc(addr_bufsize, GFP_KERNEL);
+	if (sap == NULL)
+		return -ENOMEM;
+
+	error = -ENOENT;
+	for (s = 0; s < location->nservers; s++) {
+		const struct nfs4_string *buf = &location->servers[s];
+		char *hostname;
+
+		if (buf->len <= 0 || buf->len > PAGE_SIZE)
+			continue;
+
+		if (memchr(buf->data, IPV6_SCOPE_DELIMITER, buf->len) != NULL)
+			continue;
+
+		salen = nfs_parse_server_name(buf->data, buf->len,
+						sap, addr_bufsize, server);
+		if (salen == 0)
+			continue;
+		rpc_set_port(sap, NFS_PORT);
+
+		error = -ENOMEM;
+		hostname = kstrndup(buf->data, buf->len, GFP_KERNEL);
+		if (hostname == NULL)
+			break;
+
+		error = nfs4_update_server(server, hostname, sap, salen);
+		kfree(hostname);
+		if (error == 0)
+			break;
+	}
+
+	kfree(sap);
+	return error;
+}
+
+/**
+ * nfs4_replace_transport - set up transport to destination server
+ *
+ * @server: export being migrated
+ * @locations: fs_locations array
+ *
+ * Returns zero on success, or a negative errno value.
+ *
+ * The client tries all the entries in the "locations" array, in the
+ * order returned by the server, until one works or the end of the
+ * array is reached.
+ */
+int nfs4_replace_transport(struct nfs_server *server,
+			   const struct nfs4_fs_locations *locations)
+{
+	char *page = NULL, *page2 = NULL;
+	int loc, error;
+
+	error = -ENOENT;
+	if (locations == NULL || locations->nlocations <= 0)
+		goto out;
+
+	error = -ENOMEM;
+	page = (char *) __get_free_page(GFP_USER);
+	if (!page)
+		goto out;
+	page2 = (char *) __get_free_page(GFP_USER);
+	if (!page2)
+		goto out;
+
+	for (loc = 0; loc < locations->nlocations; loc++) {
+		const struct nfs4_fs_location *location =
+						&locations->locations[loc];
+
+		if (location == NULL || location->nservers <= 0 ||
+		    location->rootpath.ncomponents == 0)
+			continue;
+
+		error = nfs4_try_replacing_one_location(server, page,
+							page2, location);
+		if (error == 0)
+			break;
+	}
+
+out:
+	free_page((unsigned long)page);
+	free_page((unsigned long)page2);
+	return error;
+}
-- 
cgit 


From ec011fe847347b40c60fdb5085f65227762e2e08 Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 14:12:39 -0400
Subject: NFS: Introduce a vector of migration recovery ops

The differences between minor version 0 and minor version 1
migration will be abstracted by the addition of a set of migration
recovery ops.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4_fs.h  |  4 ++++
 fs/nfs/nfs4proc.c | 10 ++++++++++
 2 files changed, 14 insertions(+)

diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index fcae7289d557..4f48000b2b97 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -50,6 +50,7 @@ struct nfs4_minor_version_ops {
 	const struct nfs4_state_recovery_ops *reboot_recovery_ops;
 	const struct nfs4_state_recovery_ops *nograce_recovery_ops;
 	const struct nfs4_state_maintenance_ops *state_renewal_ops;
+	const struct nfs4_mig_recovery_ops *mig_recovery_ops;
 };
 
 #define NFS_SEQID_CONFIRMED 1
@@ -203,6 +204,9 @@ struct nfs4_state_maintenance_ops {
 	int (*renew_lease)(struct nfs_client *, struct rpc_cred *);
 };
 
+struct nfs4_mig_recovery_ops {
+};
+
 extern const struct dentry_operations nfs4_dentry_operations;
 
 /* dir.c */
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 259f8beb96a3..2aacd1357dc5 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -7881,6 +7881,14 @@ static const struct nfs4_state_maintenance_ops nfs41_state_renewal_ops = {
 };
 #endif
 
+static const struct nfs4_mig_recovery_ops nfs40_mig_recovery_ops = {
+};
+
+#if defined(CONFIG_NFS_V4_1)
+static const struct nfs4_mig_recovery_ops nfs41_mig_recovery_ops = {
+};
+#endif	/* CONFIG_NFS_V4_1 */
+
 static const struct nfs4_minor_version_ops nfs_v4_0_minor_ops = {
 	.minor_version = 0,
 	.init_caps = NFS_CAP_READDIRPLUS
@@ -7896,6 +7904,7 @@ static const struct nfs4_minor_version_ops nfs_v4_0_minor_ops = {
 	.reboot_recovery_ops = &nfs40_reboot_recovery_ops,
 	.nograce_recovery_ops = &nfs40_nograce_recovery_ops,
 	.state_renewal_ops = &nfs40_state_renewal_ops,
+	.mig_recovery_ops = &nfs40_mig_recovery_ops,
 };
 
 #if defined(CONFIG_NFS_V4_1)
@@ -7916,6 +7925,7 @@ static const struct nfs4_minor_version_ops nfs_v4_1_minor_ops = {
 	.reboot_recovery_ops = &nfs41_reboot_recovery_ops,
 	.nograce_recovery_ops = &nfs41_nograce_recovery_ops,
 	.state_renewal_ops = &nfs41_state_renewal_ops,
+	.mig_recovery_ops = &nfs41_mig_recovery_ops,
 };
 #endif
 
-- 
cgit 


From 9e6ee76dfb7cd747fac5679542a9b45930173eec Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 14:12:45 -0400
Subject: NFS: Export _nfs_display_fhandle()

Allow code in nfsv4.ko to use _nfs_display_fhandle().

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/inode.c      | 2 ++
 fs/nfs/nfs4client.c | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index eda8879171c4..4bc7538f951e 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1209,6 +1209,7 @@ u32 _nfs_display_fhandle_hash(const struct nfs_fh *fh)
 	 * not on the result */
 	return nfs_fhandle_hash(fh);
 }
+EXPORT_SYMBOL_GPL(_nfs_display_fhandle_hash);
 
 /*
  * _nfs_display_fhandle - display an NFS file handle on the console
@@ -1253,6 +1254,7 @@ void _nfs_display_fhandle(const struct nfs_fh *fh, const char *caption)
 		}
 	}
 }
+EXPORT_SYMBOL_GPL(_nfs_display_fhandle);
 #endif
 
 /**
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index c6eee812337f..a2cba66f8345 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -925,7 +925,7 @@ static int nfs4_server_common_setup(struct nfs_server *server,
 	dprintk("Server FSID: %llx:%llx\n",
 			(unsigned long long) server->fsid.major,
 			(unsigned long long) server->fsid.minor);
-	dprintk("Mount FH: %d\n", mntfh->size);
+	nfs_display_fhandle(mntfh, "Pseudo-fs root FH");
 
 	nfs4_session_set_rwsize(server);
 
-- 
cgit 


From b03d735b4ca2375d2251195cd848713bc55e7d79 Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 14:12:50 -0400
Subject: NFS: Add method to retrieve fs_locations during migration recovery

The nfs4_proc_fs_locations() function is invoked during referral
processing to perform a GETATTR(fs_locations) on an object's parent
directory in order to discover the target of the referral.  It
performs a LOOKUP in the compound, so the client needs to know the
parent's file handle a priori.

Unfortunately this function is not adequate for handling migration
recovery.  We need to probe fs_locations information on an FSID, but
there's no parent directory available for many operations that
can return NFS4ERR_MOVED.

Another subtlety: recovering from NFS4ERR_LEASE_MOVED is a process
of walking over a list of known FSIDs that reside on the server, and
probing whether they have migrated.  Once the server has detected
that the client has probed all migrated file systems, it stops
returning NFS4ERR_LEASE_MOVED.

A minor version zero server needs to know what client ID is
requesting fs_locations information so it can clear the flag that
forces it to continue returning NFS4ERR_LEASE_MOVED.  This flag is
set per client ID and per FSID.  However, the client ID is not an
argument of either the PUTFH or GETATTR operations.  Later minor
versions have client ID information embedded in the compound's
SEQUENCE operation.

Therefore, by convention, minor version zero clients send a RENEW
operation in the same compound as the GETATTR(fs_locations), since
RENEW's one argument is a clientid4.  This allows a minor version
zero server to identify correctly the client that is probing for a
migration.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4_fs.h        |   4 ++
 fs/nfs/nfs4proc.c       | 153 ++++++++++++++++++++++++++++++++++++++++++++++++
 fs/nfs/nfs4xdr.c        |  46 +++++++++++----
 include/linux/nfs_xdr.h |   4 ++
 4 files changed, 196 insertions(+), 11 deletions(-)

diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 4f48000b2b97..e59d3b4c7944 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -205,6 +205,8 @@ struct nfs4_state_maintenance_ops {
 };
 
 struct nfs4_mig_recovery_ops {
+	int (*get_locations)(struct inode *, struct nfs4_fs_locations *,
+		struct page *, struct rpc_cred *);
 };
 
 extern const struct dentry_operations nfs4_dentry_operations;
@@ -237,6 +239,8 @@ extern int nfs4_do_close(struct nfs4_state *state, gfp_t gfp_mask, int wait);
 extern int nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle);
 extern int nfs4_proc_fs_locations(struct rpc_clnt *, struct inode *, const struct qstr *,
 				  struct nfs4_fs_locations *, struct page *);
+extern int nfs4_proc_get_locations(struct inode *, struct nfs4_fs_locations *,
+		struct page *page, struct rpc_cred *);
 extern struct rpc_clnt *nfs4_proc_lookup_mountpoint(struct inode *, struct qstr *,
 			    struct nfs_fh *, struct nfs_fattr *);
 extern int nfs4_proc_secinfo(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 2aacd1357dc5..c71c16e0ac22 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -5984,6 +5984,157 @@ int nfs4_proc_fs_locations(struct rpc_clnt *client, struct inode *dir,
 	return err;
 }
 
+/*
+ * This operation also signals the server that this client is
+ * performing migration recovery.  The server can stop returning
+ * NFS4ERR_LEASE_MOVED to this client.  A RENEW operation is
+ * appended to this compound to identify the client ID which is
+ * performing recovery.
+ */
+static int _nfs40_proc_get_locations(struct inode *inode,
+				     struct nfs4_fs_locations *locations,
+				     struct page *page, struct rpc_cred *cred)
+{
+	struct nfs_server *server = NFS_SERVER(inode);
+	struct rpc_clnt *clnt = server->client;
+	u32 bitmask[2] = {
+		[0] = FATTR4_WORD0_FSID | FATTR4_WORD0_FS_LOCATIONS,
+	};
+	struct nfs4_fs_locations_arg args = {
+		.clientid	= server->nfs_client->cl_clientid,
+		.fh		= NFS_FH(inode),
+		.page		= page,
+		.bitmask	= bitmask,
+		.migration	= 1,		/* skip LOOKUP */
+		.renew		= 1,		/* append RENEW */
+	};
+	struct nfs4_fs_locations_res res = {
+		.fs_locations	= locations,
+		.migration	= 1,
+		.renew		= 1,
+	};
+	struct rpc_message msg = {
+		.rpc_proc	= &nfs4_procedures[NFSPROC4_CLNT_FS_LOCATIONS],
+		.rpc_argp	= &args,
+		.rpc_resp	= &res,
+		.rpc_cred	= cred,
+	};
+	unsigned long now = jiffies;
+	int status;
+
+	nfs_fattr_init(&locations->fattr);
+	locations->server = server;
+	locations->nlocations = 0;
+
+	nfs4_init_sequence(&args.seq_args, &res.seq_res, 0);
+	nfs4_set_sequence_privileged(&args.seq_args);
+	status = nfs4_call_sync_sequence(clnt, server, &msg,
+					&args.seq_args, &res.seq_res);
+	if (status)
+		return status;
+
+	renew_lease(server, now);
+	return 0;
+}
+
+#ifdef CONFIG_NFS_V4_1
+
+/*
+ * This operation also signals the server that this client is
+ * performing migration recovery.  The server can stop asserting
+ * SEQ4_STATUS_LEASE_MOVED for this client.  The client ID
+ * performing this operation is identified in the SEQUENCE
+ * operation in this compound.
+ *
+ * When the client supports GETATTR(fs_locations_info), it can
+ * be plumbed in here.
+ */
+static int _nfs41_proc_get_locations(struct inode *inode,
+				     struct nfs4_fs_locations *locations,
+				     struct page *page, struct rpc_cred *cred)
+{
+	struct nfs_server *server = NFS_SERVER(inode);
+	struct rpc_clnt *clnt = server->client;
+	u32 bitmask[2] = {
+		[0] = FATTR4_WORD0_FSID | FATTR4_WORD0_FS_LOCATIONS,
+	};
+	struct nfs4_fs_locations_arg args = {
+		.fh		= NFS_FH(inode),
+		.page		= page,
+		.bitmask	= bitmask,
+		.migration	= 1,		/* skip LOOKUP */
+	};
+	struct nfs4_fs_locations_res res = {
+		.fs_locations	= locations,
+		.migration	= 1,
+	};
+	struct rpc_message msg = {
+		.rpc_proc	= &nfs4_procedures[NFSPROC4_CLNT_FS_LOCATIONS],
+		.rpc_argp	= &args,
+		.rpc_resp	= &res,
+		.rpc_cred	= cred,
+	};
+	int status;
+
+	nfs_fattr_init(&locations->fattr);
+	locations->server = server;
+	locations->nlocations = 0;
+
+	nfs4_init_sequence(&args.seq_args, &res.seq_res, 0);
+	nfs4_set_sequence_privileged(&args.seq_args);
+	status = nfs4_call_sync_sequence(clnt, server, &msg,
+					&args.seq_args, &res.seq_res);
+	if (status == NFS4_OK &&
+	    res.seq_res.sr_status_flags & SEQ4_STATUS_LEASE_MOVED)
+		status = -NFS4ERR_LEASE_MOVED;
+	return status;
+}
+
+#endif	/* CONFIG_NFS_V4_1 */
+
+/**
+ * nfs4_proc_get_locations - discover locations for a migrated FSID
+ * @inode: inode on FSID that is migrating
+ * @locations: result of query
+ * @page: buffer
+ * @cred: credential to use for this operation
+ *
+ * Returns NFS4_OK on success, a negative NFS4ERR status code if the
+ * operation failed, or a negative errno if a local error occurred.
+ *
+ * On success, "locations" is filled in, but if the server has
+ * no locations information, NFS_ATTR_FATTR_V4_LOCATIONS is not
+ * asserted.
+ *
+ * -NFS4ERR_LEASE_MOVED is returned if the server still has leases
+ * from this client that require migration recovery.
+ */
+int nfs4_proc_get_locations(struct inode *inode,
+			    struct nfs4_fs_locations *locations,
+			    struct page *page, struct rpc_cred *cred)
+{
+	struct nfs_server *server = NFS_SERVER(inode);
+	struct nfs_client *clp = server->nfs_client;
+	const struct nfs4_mig_recovery_ops *ops =
+					clp->cl_mvops->mig_recovery_ops;
+	struct nfs4_exception exception = { };
+	int status;
+
+	dprintk("%s: FSID %llx:%llx on \"%s\"\n", __func__,
+		(unsigned long long)server->fsid.major,
+		(unsigned long long)server->fsid.minor,
+		clp->cl_hostname);
+	nfs_display_fhandle(NFS_FH(inode), __func__);
+
+	do {
+		status = ops->get_locations(inode, locations, page, cred);
+		if (status != -NFS4ERR_DELAY)
+			break;
+		nfs4_handle_exception(server, status, &exception);
+	} while (exception.retry);
+	return status;
+}
+
 /**
  * If 'use_integrity' is true and the state managment nfs_client
  * cl_rpcclient is using krb5i/p, use the integrity protected cl_rpcclient
@@ -7882,10 +8033,12 @@ static const struct nfs4_state_maintenance_ops nfs41_state_renewal_ops = {
 #endif
 
 static const struct nfs4_mig_recovery_ops nfs40_mig_recovery_ops = {
+	.get_locations = _nfs40_proc_get_locations,
 };
 
 #if defined(CONFIG_NFS_V4_1)
 static const struct nfs4_mig_recovery_ops nfs41_mig_recovery_ops = {
+	.get_locations = _nfs41_proc_get_locations,
 };
 #endif	/* CONFIG_NFS_V4_1 */
 
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 79210d23f607..1854b04f828f 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -736,13 +736,15 @@ static int nfs4_stat_to_errno(int);
 				 encode_sequence_maxsz + \
 				 encode_putfh_maxsz + \
 				 encode_lookup_maxsz + \
-				 encode_fs_locations_maxsz)
+				 encode_fs_locations_maxsz + \
+				 encode_renew_maxsz)
 #define NFS4_dec_fs_locations_sz \
 				(compound_decode_hdr_maxsz + \
 				 decode_sequence_maxsz + \
 				 decode_putfh_maxsz + \
 				 decode_lookup_maxsz + \
-				 decode_fs_locations_maxsz)
+				 decode_fs_locations_maxsz + \
+				 decode_renew_maxsz)
 #define NFS4_enc_secinfo_sz 	(compound_encode_hdr_maxsz + \
 				encode_sequence_maxsz + \
 				encode_putfh_maxsz + \
@@ -2687,11 +2689,20 @@ static void nfs4_xdr_enc_fs_locations(struct rpc_rqst *req,
 
 	encode_compound_hdr(xdr, req, &hdr);
 	encode_sequence(xdr, &args->seq_args, &hdr);
-	encode_putfh(xdr, args->dir_fh, &hdr);
-	encode_lookup(xdr, args->name, &hdr);
-	replen = hdr.replen;	/* get the attribute into args->page */
-	encode_fs_locations(xdr, args->bitmask, &hdr);
+	if (args->migration) {
+		encode_putfh(xdr, args->fh, &hdr);
+		replen = hdr.replen;
+		encode_fs_locations(xdr, args->bitmask, &hdr);
+		if (args->renew)
+			encode_renew(xdr, args->clientid, &hdr);
+	} else {
+		encode_putfh(xdr, args->dir_fh, &hdr);
+		encode_lookup(xdr, args->name, &hdr);
+		replen = hdr.replen;
+		encode_fs_locations(xdr, args->bitmask, &hdr);
+	}
 
+	/* Set up reply kvec to capture returned fs_locations array. */
 	xdr_inline_pages(&req->rq_rcv_buf, replen << 2, &args->page,
 			0, PAGE_SIZE);
 	encode_nops(&hdr);
@@ -6824,13 +6835,26 @@ static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req,
 	status = decode_putfh(xdr);
 	if (status)
 		goto out;
-	status = decode_lookup(xdr);
-	if (status)
-		goto out;
-	xdr_enter_page(xdr, PAGE_SIZE);
-	status = decode_getfattr_generic(xdr, &res->fs_locations->fattr,
+	if (res->migration) {
+		xdr_enter_page(xdr, PAGE_SIZE);
+		status = decode_getfattr_generic(xdr,
+					&res->fs_locations->fattr,
 					 NULL, res->fs_locations,
 					 NULL, res->fs_locations->server);
+		if (status)
+			goto out;
+		if (res->renew)
+			status = decode_renew(xdr);
+	} else {
+		status = decode_lookup(xdr);
+		if (status)
+			goto out;
+		xdr_enter_page(xdr, PAGE_SIZE);
+		status = decode_getfattr_generic(xdr,
+					&res->fs_locations->fattr,
+					 NULL, res->fs_locations,
+					 NULL, res->fs_locations->server);
+	}
 out:
 	return status;
 }
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 49f52c8f4422..405dfadcbc3b 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1053,14 +1053,18 @@ struct nfs4_fs_locations {
 struct nfs4_fs_locations_arg {
 	struct nfs4_sequence_args	seq_args;
 	const struct nfs_fh *dir_fh;
+	const struct nfs_fh *fh;
 	const struct qstr *name;
 	struct page *page;
 	const u32 *bitmask;
+	clientid4 clientid;
+	unsigned char migration:1, renew:1;
 };
 
 struct nfs4_fs_locations_res {
 	struct nfs4_sequence_res	seq_res;
 	struct nfs4_fs_locations       *fs_locations;
+	unsigned char			migration:1, renew:1;
 };
 
 struct nfs4_secinfo4 {
-- 
cgit 


From ce6cda1845cf2332d2c411a5c72cd166256b21da Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 14:12:56 -0400
Subject: NFS: Add a super_block backpointer to the nfs_server struct

NFS_SB() returns the pointer to an nfs_server struct, given a
pointer to a super_block.  But we have no way to go back the other
way.

Add a super_block backpointer field so that, given an nfs_server
struct, it is easy to get to the filesystem's root dentry.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/super.c            | 1 +
 include/linux/nfs_fs_sb.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 3f5a7a85c9c2..e26647be69ce 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2534,6 +2534,7 @@ struct dentry *nfs_fs_mount_common(struct nfs_server *server,
 			mntroot = ERR_PTR(error);
 			goto error_splat_bdi;
 		}
+		server->super = s;
 	}
 
 	if (!s->s_root) {
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index f9c0a6cb41e9..46b0cb4bee09 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -148,6 +148,7 @@ struct nfs_server {
 	__u64			maxfilesize;	/* maximum file size */
 	struct timespec		time_delta;	/* smallest time granularity */
 	unsigned long		mount_time;	/* when this fs was mounted */
+	struct super_block	*super;		/* VFS super block */
 	dev_t			s_dev;		/* superblock dev numbers */
 
 #ifdef CONFIG_NFS_FSCACHE
-- 
cgit 


From c9fdeb280b8cc511c6730db9ab3973331ea344e0 Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 14:13:02 -0400
Subject: NFS: Add basic migration support to state manager thread

Migration recovery and state recovery must be serialized, so handle
both in the state manager thread.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4_fs.h          |   2 +
 fs/nfs/nfs4client.c       |   1 +
 fs/nfs/nfs4state.c        | 161 +++++++++++++++++++++++++++++++++++++++++++++-
 include/linux/nfs_fs_sb.h |   7 ++
 4 files changed, 168 insertions(+), 3 deletions(-)

diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index e59d3b4c7944..94e783ffcf08 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -29,6 +29,7 @@ enum nfs4_client_state {
 	NFS4CLNT_SERVER_SCOPE_MISMATCH,
 	NFS4CLNT_PURGE_STATE,
 	NFS4CLNT_BIND_CONN_TO_SESSION,
+	NFS4CLNT_MOVED,
 };
 
 #define NFS4_RENEW_TIMEOUT		0x01
@@ -421,6 +422,7 @@ extern int nfs4_client_recover_expired_lease(struct nfs_client *clp);
 extern void nfs4_schedule_state_manager(struct nfs_client *);
 extern void nfs4_schedule_path_down_recovery(struct nfs_client *clp);
 extern int nfs4_schedule_stateid_recovery(const struct nfs_server *, struct nfs4_state *);
+extern int nfs4_schedule_migration_recovery(const struct nfs_server *);
 extern void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags);
 extern void nfs41_handle_server_scope(struct nfs_client *,
 				      struct nfs41_server_scope **);
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index a2cba66f8345..0cde95e9bd6a 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -197,6 +197,7 @@ struct nfs_client *nfs4_alloc_client(const struct nfs_client_initdata *cl_init)
 	clp->cl_state = 1 << NFS4CLNT_LEASE_EXPIRED;
 	clp->cl_minorversion = cl_init->minorversion;
 	clp->cl_mvops = nfs_v4_minor_ops[cl_init->minorversion];
+	clp->cl_mig_gen = 1;
 	return clp;
 
 error:
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index fa2706a4225a..ba0db18b5f67 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -239,8 +239,6 @@ static void nfs4_end_drain_session(struct nfs_client *clp)
 	}
 }
 
-#if defined(CONFIG_NFS_V4_1)
-
 static int nfs4_drain_slot_tbl(struct nfs4_slot_table *tbl)
 {
 	set_bit(NFS4_SLOT_TBL_DRAINING, &tbl->slot_tbl_state);
@@ -270,6 +268,8 @@ static int nfs4_begin_drain_session(struct nfs_client *clp)
 	return nfs4_drain_slot_tbl(&ses->fc_slot_table);
 }
 
+#if defined(CONFIG_NFS_V4_1)
+
 static int nfs41_setup_state_renewal(struct nfs_client *clp)
 {
 	int status;
@@ -1197,6 +1197,42 @@ void nfs4_schedule_lease_recovery(struct nfs_client *clp)
 }
 EXPORT_SYMBOL_GPL(nfs4_schedule_lease_recovery);
 
+/**
+ * nfs4_schedule_migration_recovery - trigger migration recovery
+ *
+ * @server: FSID that is migrating
+ *
+ * Returns zero if recovery has started, otherwise a negative NFS4ERR
+ * value is returned.
+ */
+int nfs4_schedule_migration_recovery(const struct nfs_server *server)
+{
+	struct nfs_client *clp = server->nfs_client;
+
+	if (server->fh_expire_type != NFS4_FH_PERSISTENT) {
+		pr_err("NFS: volatile file handles not supported (server %s)\n",
+				clp->cl_hostname);
+		return -NFS4ERR_IO;
+	}
+
+	if (test_bit(NFS_MIG_FAILED, &server->mig_status))
+		return -NFS4ERR_IO;
+
+	dprintk("%s: scheduling migration recovery for (%llx:%llx) on %s\n",
+			__func__,
+			(unsigned long long)server->fsid.major,
+			(unsigned long long)server->fsid.minor,
+			clp->cl_hostname);
+
+	set_bit(NFS_MIG_IN_TRANSITION,
+			&((struct nfs_server *)server)->mig_status);
+	set_bit(NFS4CLNT_MOVED, &clp->cl_state);
+
+	nfs4_schedule_state_manager(clp);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(nfs4_schedule_migration_recovery);
+
 int nfs4_wait_clnt_recover(struct nfs_client *clp)
 {
 	int res;
@@ -1826,6 +1862,119 @@ static int nfs4_purge_lease(struct nfs_client *clp)
 	return 0;
 }
 
+/*
+ * Try remote migration of one FSID from a source server to a
+ * destination server.  The source server provides a list of
+ * potential destinations.
+ *
+ * Returns zero or a negative NFS4ERR status code.
+ */
+static int nfs4_try_migration(struct nfs_server *server, struct rpc_cred *cred)
+{
+	struct nfs_client *clp = server->nfs_client;
+	struct nfs4_fs_locations *locations = NULL;
+	struct inode *inode;
+	struct page *page;
+	int status, result;
+
+	dprintk("--> %s: FSID %llx:%llx on \"%s\"\n", __func__,
+			(unsigned long long)server->fsid.major,
+			(unsigned long long)server->fsid.minor,
+			clp->cl_hostname);
+
+	result = 0;
+	page = alloc_page(GFP_KERNEL);
+	locations = kmalloc(sizeof(struct nfs4_fs_locations), GFP_KERNEL);
+	if (page == NULL || locations == NULL) {
+		dprintk("<-- %s: no memory\n", __func__);
+		goto out;
+	}
+
+	inode = server->super->s_root->d_inode;
+	result = nfs4_proc_get_locations(inode, locations, page, cred);
+	if (result) {
+		dprintk("<-- %s: failed to retrieve fs_locations: %d\n",
+			__func__, result);
+		goto out;
+	}
+
+	result = -NFS4ERR_NXIO;
+	if (!(locations->fattr.valid & NFS_ATTR_FATTR_V4_LOCATIONS)) {
+		dprintk("<-- %s: No fs_locations data, migration skipped\n",
+			__func__);
+		goto out;
+	}
+
+	nfs4_begin_drain_session(clp);
+
+	status = nfs4_replace_transport(server, locations);
+	if (status != 0) {
+		dprintk("<-- %s: failed to replace transport: %d\n",
+			__func__, status);
+		goto out;
+	}
+
+	result = 0;
+	dprintk("<-- %s: migration succeeded\n", __func__);
+
+out:
+	if (page != NULL)
+		__free_page(page);
+	kfree(locations);
+	if (result) {
+		pr_err("NFS: migration recovery failed (server %s)\n",
+				clp->cl_hostname);
+		set_bit(NFS_MIG_FAILED, &server->mig_status);
+	}
+	return result;
+}
+
+/*
+ * Returns zero or a negative NFS4ERR status code.
+ */
+static int nfs4_handle_migration(struct nfs_client *clp)
+{
+	const struct nfs4_state_maintenance_ops *ops =
+				clp->cl_mvops->state_renewal_ops;
+	struct nfs_server *server;
+	struct rpc_cred *cred;
+
+	dprintk("%s: migration reported on \"%s\"\n", __func__,
+			clp->cl_hostname);
+
+	spin_lock(&clp->cl_lock);
+	cred = ops->get_state_renewal_cred_locked(clp);
+	spin_unlock(&clp->cl_lock);
+	if (cred == NULL)
+		return -NFS4ERR_NOENT;
+
+	clp->cl_mig_gen++;
+restart:
+	rcu_read_lock();
+	list_for_each_entry_rcu(server, &clp->cl_superblocks, client_link) {
+		int status;
+
+		if (server->mig_gen == clp->cl_mig_gen)
+			continue;
+		server->mig_gen = clp->cl_mig_gen;
+
+		if (!test_and_clear_bit(NFS_MIG_IN_TRANSITION,
+						&server->mig_status))
+			continue;
+
+		rcu_read_unlock();
+		status = nfs4_try_migration(server, cred);
+		if (status < 0) {
+			put_rpccred(cred);
+			return status;
+		}
+		goto restart;
+	}
+	rcu_read_unlock();
+	put_rpccred(cred);
+	return 0;
+}
+
 /**
  * nfs4_discover_server_trunking - Detect server IP address trunking
  *
@@ -2154,7 +2303,13 @@ static void nfs4_state_manager(struct nfs_client *clp)
 			status = nfs4_check_lease(clp);
 			if (status < 0)
 				goto out_error;
-			continue;
+		}
+
+		if (test_and_clear_bit(NFS4CLNT_MOVED, &clp->cl_state)) {
+			section = "migration";
+			status = nfs4_handle_migration(clp);
+			if (status < 0)
+				goto out_error;
 		}
 
 		/* First recover reboot state... */
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 46b0cb4bee09..186ec4969313 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -79,6 +79,7 @@ struct nfs_client {
 	char			cl_ipaddr[48];
 	u32			cl_cb_ident;	/* v4.0 callback identifier */
 	const struct nfs4_minor_version_ops *cl_mvops;
+	unsigned long		cl_mig_gen;
 
 	/* NFSv4.0 transport blocking */
 	struct nfs4_slot_table	*cl_slot_tbl;
@@ -189,6 +190,12 @@ struct nfs_server {
 	struct list_head	state_owners_lru;
 	struct list_head	layouts;
 	struct list_head	delegations;
+
+	unsigned long		mig_gen;
+	unsigned long		mig_status;
+#define NFS_MIG_IN_TRANSITION		(1)
+#define NFS_MIG_FAILED			(2)
+
 	void (*destroy)(struct nfs_server *);
 
 	atomic_t active; /* Keep trace of any activity to this server */
-- 
cgit 


From f1478c13c0a606b960becaa70e82065835b16fbf Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 14:13:07 -0400
Subject: NFS: Re-use exit code in nfs4_async_handle_error()

Clean up.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4proc.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index c71c16e0ac22..2614b46a0cc5 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4750,19 +4750,15 @@ nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
 			dprintk("%s ERROR %d, Reset session\n", __func__,
 				task->tk_status);
 			nfs4_schedule_session_recovery(clp->cl_session, task->tk_status);
-			task->tk_status = 0;
-			return -EAGAIN;
+			goto restart_call;
 #endif /* CONFIG_NFS_V4_1 */
 		case -NFS4ERR_DELAY:
 			nfs_inc_server_stats(server, NFSIOS_DELAY);
 		case -NFS4ERR_GRACE:
 			rpc_delay(task, NFS4_POLL_RETRY_MAX);
-			task->tk_status = 0;
-			return -EAGAIN;
 		case -NFS4ERR_RETRY_UNCACHED_REP:
 		case -NFS4ERR_OLD_STATEID:
-			task->tk_status = 0;
-			return -EAGAIN;
+			goto restart_call;
 	}
 	task->tk_status = nfs4_map_errors(task->tk_status);
 	return 0;
@@ -4773,6 +4769,7 @@ wait_on_recovery:
 	rpc_sleep_on(&clp->cl_rpcwaitq, task, NULL);
 	if (test_bit(NFS4CLNT_MANAGER_RUNNING, &clp->cl_state) == 0)
 		rpc_wake_up_queued_task(&clp->cl_rpcwaitq, task);
+restart_call:
 	task->tk_status = 0;
 	return -EAGAIN;
 }
-- 
cgit 


From 9f51a78e3a637a5923c661d2abe958c63441696f Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 14:13:13 -0400
Subject: NFS: Rename "stateid_invalid" label

I'm going to use this exit label also for migration recovery
failures.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4proc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 2614b46a0cc5..fa87f81527b3 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4728,12 +4728,12 @@ nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
 			if (state == NULL)
 				break;
 			if (nfs4_schedule_stateid_recovery(server, state) < 0)
-				goto stateid_invalid;
+				goto recovery_failed;
 			goto wait_on_recovery;
 		case -NFS4ERR_EXPIRED:
 			if (state != NULL) {
 				if (nfs4_schedule_stateid_recovery(server, state) < 0)
-					goto stateid_invalid;
+					goto recovery_failed;
 			}
 		case -NFS4ERR_STALE_STATEID:
 		case -NFS4ERR_STALE_CLIENTID:
@@ -4762,7 +4762,7 @@ nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
 	}
 	task->tk_status = nfs4_map_errors(task->tk_status);
 	return 0;
-stateid_invalid:
+recovery_failed:
 	task->tk_status = -EIO;
 	return 0;
 wait_on_recovery:
-- 
cgit 


From 519ae255d403219fd5375de13c95dea3ef1cfda0 Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 14:13:19 -0400
Subject: NFS: Add migration recovery callouts in nfs4proc.c

When a server returns NFS4ERR_MOVED, trigger the new migration
recovery logic in the state manager.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4proc.c | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index fa87f81527b3..a1f620950f11 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -384,6 +384,11 @@ static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struc
 		case -NFS4ERR_STALE_CLIENTID:
 			nfs4_schedule_lease_recovery(clp);
 			goto wait_on_recovery;
+		case -NFS4ERR_MOVED:
+			ret = nfs4_schedule_migration_recovery(server);
+			if (ret < 0)
+				break;
+			goto wait_on_recovery;
 #if defined(CONFIG_NFS_V4_1)
 		case -NFS4ERR_BADSESSION:
 		case -NFS4ERR_BADSLOT:
@@ -431,6 +436,8 @@ static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struc
 	return nfs4_map_errors(ret);
 wait_on_recovery:
 	ret = nfs4_wait_clnt_recover(clp);
+	if (test_bit(NFS_MIG_FAILED, &server->mig_status))
+		return -EIO;
 	if (ret == 0)
 		exception->retry = 1;
 	return ret;
@@ -2974,11 +2981,16 @@ static int nfs4_get_referral(struct rpc_clnt *client, struct inode *dir,
 	status = nfs4_proc_fs_locations(client, dir, name, locations, page);
 	if (status != 0)
 		goto out;
-	/* Make sure server returned a different fsid for the referral */
+
+	/*
+	 * If the fsid didn't change, this is a migration event, not a
+	 * referral.  Cause us to drop into the exception handler, which
+	 * will kick off migration recovery.
+	 */
 	if (nfs_fsid_equal(&NFS_SERVER(dir)->fsid, &locations->fattr.fsid)) {
 		dprintk("%s: server did not return a different fsid for"
 			" a referral at %s\n", __func__, name->name);
-		status = -EIO;
+		status = -NFS4ERR_MOVED;
 		goto out;
 	}
 	/* Fixup attributes for the nfs_lookup() call to nfs_fhget() */
@@ -4739,6 +4751,10 @@ nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
 		case -NFS4ERR_STALE_CLIENTID:
 			nfs4_schedule_lease_recovery(clp);
 			goto wait_on_recovery;
+		case -NFS4ERR_MOVED:
+			if (nfs4_schedule_migration_recovery(server) < 0)
+				goto recovery_failed;
+			goto wait_on_recovery;
 #if defined(CONFIG_NFS_V4_1)
 		case -NFS4ERR_BADSESSION:
 		case -NFS4ERR_BADSLOT:
@@ -4769,6 +4785,8 @@ wait_on_recovery:
 	rpc_sleep_on(&clp->cl_rpcwaitq, task, NULL);
 	if (test_bit(NFS4CLNT_MANAGER_RUNNING, &clp->cl_state) == 0)
 		rpc_wake_up_queued_task(&clp->cl_rpcwaitq, task);
+	if (test_bit(NFS_MIG_FAILED, &server->mig_status))
+		goto recovery_failed;
 restart_call:
 	task->tk_status = 0;
 	return -EAGAIN;
-- 
cgit 


From 352297b917d8a3e61a778ffb0f0195ce8550d7f5 Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 14:13:24 -0400
Subject: NFS: Handle NFS4ERR_MOVED during delegation recall

When a server returns NFS4ERR_MOVED during a delegation recall,
trigger the new migration recovery logic in the state manager.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4proc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index a1f620950f11..552e4f7a8225 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1575,6 +1575,9 @@ static int nfs4_handle_delegation_recall_error(struct nfs_server *server, struct
 			/* Don't recall a delegation if it was lost */
 			nfs4_schedule_lease_recovery(server->nfs_client);
 			return -EAGAIN;
+		case -NFS4ERR_MOVED:
+			nfs4_schedule_migration_recovery(server);
+			return -EAGAIN;
 		case -NFS4ERR_DELEG_REVOKED:
 		case -NFS4ERR_ADMIN_REVOKED:
 		case -NFS4ERR_BAD_STATEID:
-- 
cgit 


From 44c9993384e9311cd56acf6ead3baffab616ae50 Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 14:13:30 -0400
Subject: NFS: Add method to detect whether an FSID is still on the server

Introduce a mechanism for probing a server to determine if an FSID
is present or absent.

The on-the-wire compound is different between minor version 0 and 1.
Minor version 0 appends a RENEW operation to identify which client
ID is probing.  Minor version 1 has a SEQUENCE operation in the
compound which effectively carries the same information.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4_fs.h        |   2 +
 fs/nfs/nfs4proc.c       | 128 ++++++++++++++++++++++++++++++++++++++++++++++++
 fs/nfs/nfs4xdr.c        |  67 ++++++++++++++++++++++++-
 include/linux/nfs4.h    |   1 +
 include/linux/nfs_xdr.h |  13 +++++
 5 files changed, 209 insertions(+), 2 deletions(-)

diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 94e783ffcf08..2f0f8c216441 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -208,6 +208,7 @@ struct nfs4_state_maintenance_ops {
 struct nfs4_mig_recovery_ops {
 	int (*get_locations)(struct inode *, struct nfs4_fs_locations *,
 		struct page *, struct rpc_cred *);
+	int (*fsid_present)(struct inode *, struct rpc_cred *);
 };
 
 extern const struct dentry_operations nfs4_dentry_operations;
@@ -242,6 +243,7 @@ extern int nfs4_proc_fs_locations(struct rpc_clnt *, struct inode *, const struc
 				  struct nfs4_fs_locations *, struct page *);
 extern int nfs4_proc_get_locations(struct inode *, struct nfs4_fs_locations *,
 		struct page *page, struct rpc_cred *);
+extern int nfs4_proc_fsid_present(struct inode *, struct rpc_cred *);
 extern struct rpc_clnt *nfs4_proc_lookup_mountpoint(struct inode *, struct qstr *,
 			    struct nfs_fh *, struct nfs_fattr *);
 extern int nfs4_proc_secinfo(struct inode *, const struct qstr *, struct nfs4_secinfo_flavors *);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 552e4f7a8225..01b90bd341bb 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -6153,6 +6153,132 @@ int nfs4_proc_get_locations(struct inode *inode,
 	return status;
 }
 
+/*
+ * This operation also signals the server that this client is
+ * performing "lease moved" recovery.  The server can stop
+ * returning NFS4ERR_LEASE_MOVED to this client.  A RENEW operation
+ * is appended to this compound to identify the client ID which is
+ * performing recovery.
+ */
+static int _nfs40_proc_fsid_present(struct inode *inode, struct rpc_cred *cred)
+{
+	struct nfs_server *server = NFS_SERVER(inode);
+	struct nfs_client *clp = NFS_SERVER(inode)->nfs_client;
+	struct rpc_clnt *clnt = server->client;
+	struct nfs4_fsid_present_arg args = {
+		.fh		= NFS_FH(inode),
+		.clientid	= clp->cl_clientid,
+		.renew		= 1,		/* append RENEW */
+	};
+	struct nfs4_fsid_present_res res = {
+		.renew		= 1,
+	};
+	struct rpc_message msg = {
+		.rpc_proc	= &nfs4_procedures[NFSPROC4_CLNT_FSID_PRESENT],
+		.rpc_argp	= &args,
+		.rpc_resp	= &res,
+		.rpc_cred	= cred,
+	};
+	unsigned long now = jiffies;
+	int status;
+
+	res.fh = nfs_alloc_fhandle();
+	if (res.fh == NULL)
+		return -ENOMEM;
+
+	nfs4_init_sequence(&args.seq_args, &res.seq_res, 0);
+	nfs4_set_sequence_privileged(&args.seq_args);
+	status = nfs4_call_sync_sequence(clnt, server, &msg,
+						&args.seq_args, &res.seq_res);
+	nfs_free_fhandle(res.fh);
+	if (status)
+		return status;
+
+	do_renew_lease(clp, now);
+	return 0;
+}
+
+#ifdef CONFIG_NFS_V4_1
+
+/*
+ * This operation also signals the server that this client is
+ * performing "lease moved" recovery.  The server can stop asserting
+ * SEQ4_STATUS_LEASE_MOVED for this client.  The client ID performing
+ * this operation is identified in the SEQUENCE operation in this
+ * compound.
+ */
+static int _nfs41_proc_fsid_present(struct inode *inode, struct rpc_cred *cred)
+{
+	struct nfs_server *server = NFS_SERVER(inode);
+	struct rpc_clnt *clnt = server->client;
+	struct nfs4_fsid_present_arg args = {
+		.fh		= NFS_FH(inode),
+	};
+	struct nfs4_fsid_present_res res = {
+	};
+	struct rpc_message msg = {
+		.rpc_proc	= &nfs4_procedures[NFSPROC4_CLNT_FSID_PRESENT],
+		.rpc_argp	= &args,
+		.rpc_resp	= &res,
+		.rpc_cred	= cred,
+	};
+	int status;
+
+	res.fh = nfs_alloc_fhandle();
+	if (res.fh == NULL)
+		return -ENOMEM;
+
+	nfs4_init_sequence(&args.seq_args, &res.seq_res, 0);
+	nfs4_set_sequence_privileged(&args.seq_args);
+	status = nfs4_call_sync_sequence(clnt, server, &msg,
+						&args.seq_args, &res.seq_res);
+	nfs_free_fhandle(res.fh);
+	if (status == NFS4_OK &&
+	    res.seq_res.sr_status_flags & SEQ4_STATUS_LEASE_MOVED)
+		status = -NFS4ERR_LEASE_MOVED;
+	return status;
+}
+
+#endif	/* CONFIG_NFS_V4_1 */
+
+/**
+ * nfs4_proc_fsid_present - Is this FSID present or absent on server?
+ * @inode: inode on FSID to check
+ * @cred: credential to use for this operation
+ *
+ * Server indicates whether the FSID is present, moved, or not
+ * recognized.  This operation is necessary to clear a LEASE_MOVED
+ * condition for this client ID.
+ *
+ * Returns NFS4_OK if the FSID is present on this server,
+ * -NFS4ERR_MOVED if the FSID is no longer present, a negative
+ *  NFS4ERR code if some error occurred on the server, or a
+ *  negative errno if a local failure occurred.
+ */
+int nfs4_proc_fsid_present(struct inode *inode, struct rpc_cred *cred)
+{
+	struct nfs_server *server = NFS_SERVER(inode);
+	struct nfs_client *clp = server->nfs_client;
+	const struct nfs4_mig_recovery_ops *ops =
+					clp->cl_mvops->mig_recovery_ops;
+	struct nfs4_exception exception = { };
+	int status;
+
+	dprintk("%s: FSID %llx:%llx on \"%s\"\n", __func__,
+		(unsigned long long)server->fsid.major,
+		(unsigned long long)server->fsid.minor,
+		clp->cl_hostname);
+	nfs_display_fhandle(NFS_FH(inode), __func__);
+
+	do {
+		status = ops->fsid_present(inode, cred);
+		if (status != -NFS4ERR_DELAY)
+			break;
+		nfs4_handle_exception(server, status, &exception);
+	} while (exception.retry);
+	return status;
+}
+
 /**
  * If 'use_integrity' is true and the state managment nfs_client
  * cl_rpcclient is using krb5i/p, use the integrity protected cl_rpcclient
@@ -8052,11 +8178,13 @@ static const struct nfs4_state_maintenance_ops nfs41_state_renewal_ops = {
 
 static const struct nfs4_mig_recovery_ops nfs40_mig_recovery_ops = {
 	.get_locations = _nfs40_proc_get_locations,
+	.fsid_present = _nfs40_proc_fsid_present,
 };
 
 #if defined(CONFIG_NFS_V4_1)
 static const struct nfs4_mig_recovery_ops nfs41_mig_recovery_ops = {
 	.get_locations = _nfs41_proc_get_locations,
+	.fsid_present = _nfs41_proc_fsid_present,
 };
 #endif	/* CONFIG_NFS_V4_1 */
 
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 1854b04f828f..f903389d90f1 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -595,11 +595,13 @@ static int nfs4_stat_to_errno(int);
 #define NFS4_enc_getattr_sz	(compound_encode_hdr_maxsz + \
 				encode_sequence_maxsz + \
 				encode_putfh_maxsz + \
-				encode_getattr_maxsz)
+				encode_getattr_maxsz + \
+				encode_renew_maxsz)
 #define NFS4_dec_getattr_sz	(compound_decode_hdr_maxsz + \
 				decode_sequence_maxsz + \
 				decode_putfh_maxsz + \
-				decode_getattr_maxsz)
+				decode_getattr_maxsz + \
+				decode_renew_maxsz)
 #define NFS4_enc_lookup_sz	(compound_encode_hdr_maxsz + \
 				encode_sequence_maxsz + \
 				encode_putfh_maxsz + \
@@ -753,6 +755,18 @@ static int nfs4_stat_to_errno(int);
 				decode_sequence_maxsz + \
 				decode_putfh_maxsz + \
 				decode_secinfo_maxsz)
+#define NFS4_enc_fsid_present_sz \
+				(compound_encode_hdr_maxsz + \
+				 encode_sequence_maxsz + \
+				 encode_putfh_maxsz + \
+				 encode_getfh_maxsz + \
+				 encode_renew_maxsz)
+#define NFS4_dec_fsid_present_sz \
+				(compound_decode_hdr_maxsz + \
+				 decode_sequence_maxsz + \
+				 decode_putfh_maxsz + \
+				 decode_getfh_maxsz + \
+				 decode_renew_maxsz)
 #if defined(CONFIG_NFS_V4_1)
 #define NFS4_enc_bind_conn_to_session_sz \
 				(compound_encode_hdr_maxsz + \
@@ -2726,6 +2740,26 @@ static void nfs4_xdr_enc_secinfo(struct rpc_rqst *req,
 	encode_nops(&hdr);
 }
 
+/*
+ * Encode FSID_PRESENT request
+ */
+static void nfs4_xdr_enc_fsid_present(struct rpc_rqst *req,
+				      struct xdr_stream *xdr,
+				      struct nfs4_fsid_present_arg *args)
+{
+	struct compound_hdr hdr = {
+		.minorversion = nfs4_xdr_minorversion(&args->seq_args),
+	};
+
+	encode_compound_hdr(xdr, req, &hdr);
+	encode_sequence(xdr, &args->seq_args, &hdr);
+	encode_putfh(xdr, args->fh, &hdr);
+	encode_getfh(xdr, &hdr);
+	if (args->renew)
+		encode_renew(xdr, args->clientid, &hdr);
+	encode_nops(&hdr);
+}
+
 #if defined(CONFIG_NFS_V4_1)
 /*
  * BIND_CONN_TO_SESSION request
@@ -6883,6 +6917,34 @@ out:
 	return status;
 }
 
+/*
+ * Decode FSID_PRESENT response
+ */
+static int nfs4_xdr_dec_fsid_present(struct rpc_rqst *rqstp,
+				     struct xdr_stream *xdr,
+				     struct nfs4_fsid_present_res *res)
+{
+	struct compound_hdr hdr;
+	int status;
+
+	status = decode_compound_hdr(xdr, &hdr);
+	if (status)
+		goto out;
+	status = decode_sequence(xdr, &res->seq_res, rqstp);
+	if (status)
+		goto out;
+	status = decode_putfh(xdr);
+	if (status)
+		goto out;
+	status = decode_getfh(xdr, res->fh);
+	if (status)
+		goto out;
+	if (res->renew)
+		status = decode_renew(xdr);
+out:
+	return status;
+}
+
 #if defined(CONFIG_NFS_V4_1)
 /*
  * Decode BIND_CONN_TO_SESSION response
@@ -7397,6 +7459,7 @@ struct rpc_procinfo	nfs4_procedures[] = {
 	PROC(FS_LOCATIONS,	enc_fs_locations,	dec_fs_locations),
 	PROC(RELEASE_LOCKOWNER,	enc_release_lockowner,	dec_release_lockowner),
 	PROC(SECINFO,		enc_secinfo,		dec_secinfo),
+	PROC(FSID_PRESENT,	enc_fsid_present,	dec_fsid_present),
 #if defined(CONFIG_NFS_V4_1)
 	PROC(EXCHANGE_ID,	enc_exchange_id,	dec_exchange_id),
 	PROC(CREATE_SESSION,	enc_create_session,	dec_create_session),
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index e36dee52f224..c56fa8fedce9 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -460,6 +460,7 @@ enum {
 	NFSPROC4_CLNT_FS_LOCATIONS,
 	NFSPROC4_CLNT_RELEASE_LOCKOWNER,
 	NFSPROC4_CLNT_SECINFO,
+	NFSPROC4_CLNT_FSID_PRESENT,
 
 	/* nfs41 */
 	NFSPROC4_CLNT_EXCHANGE_ID,
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 405dfadcbc3b..8fe5b940c5f2 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -1088,6 +1088,19 @@ struct nfs4_secinfo_res {
 	struct nfs4_secinfo_flavors	*flavors;
 };
 
+struct nfs4_fsid_present_arg {
+	struct nfs4_sequence_args	seq_args;
+	const struct nfs_fh		*fh;
+	clientid4			clientid;
+	unsigned char			renew:1;
+};
+
+struct nfs4_fsid_present_res {
+	struct nfs4_sequence_res	seq_res;
+	struct nfs_fh			*fh;
+	unsigned char			renew:1;
+};
+
 #endif /* CONFIG_NFS_V4 */
 
 struct nfstime4 {
-- 
cgit 


From b7f7a66e420a9f3ec82a5124720013cee317e73a Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 14:13:35 -0400
Subject: NFS: Support NFS4ERR_LEASE_MOVED recovery in state manager

A migration on the FSID in play for the current NFS operation
is reported via the error status code NFS4ERR_MOVED.

"Lease moved" means that a migration has occurred on some other
FSID than the one for the current operation.  It's a signal that
the client should take action immediately to handle a migration
that it may not have noticed otherwise.  This is so that the
client's lease does not expire unnoticed on the destination server.

In NFSv4.0, a moved lease is reported with the NFS4ERR_LEASE_MOVED
error status code.

To recover from NFS4ERR_LEASE_MOVED, check each FSID for that server
to see if it is still present.  Invoke nfs4_try_migration() if the
FSID is no longer present on the server.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4_fs.h   |  2 ++
 fs/nfs/nfs4state.c | 73 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
 2 files changed, 74 insertions(+), 1 deletion(-)

diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 2f0f8c216441..210e44ed1d2a 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -30,6 +30,7 @@ enum nfs4_client_state {
 	NFS4CLNT_PURGE_STATE,
 	NFS4CLNT_BIND_CONN_TO_SESSION,
 	NFS4CLNT_MOVED,
+	NFS4CLNT_LEASE_MOVED,
 };
 
 #define NFS4_RENEW_TIMEOUT		0x01
@@ -425,6 +426,7 @@ extern void nfs4_schedule_state_manager(struct nfs_client *);
 extern void nfs4_schedule_path_down_recovery(struct nfs_client *clp);
 extern int nfs4_schedule_stateid_recovery(const struct nfs_server *, struct nfs4_state *);
 extern int nfs4_schedule_migration_recovery(const struct nfs_server *);
+extern void nfs4_schedule_lease_moved_recovery(struct nfs_client *);
 extern void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags);
 extern void nfs41_handle_server_scope(struct nfs_client *,
 				      struct nfs41_server_scope **);
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index ba0db18b5f67..552706d2d776 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1233,6 +1233,22 @@ int nfs4_schedule_migration_recovery(const struct nfs_server *server)
 }
 EXPORT_SYMBOL_GPL(nfs4_schedule_migration_recovery);
 
+/**
+ * nfs4_schedule_lease_moved_recovery - start lease-moved recovery
+ *
+ * @clp: server to check for moved leases
+ *
+ */
+void nfs4_schedule_lease_moved_recovery(struct nfs_client *clp)
+{
+	dprintk("%s: scheduling lease-moved recovery for client ID %llx on %s\n",
+		__func__, clp->cl_clientid, clp->cl_hostname);
+
+	set_bit(NFS4CLNT_LEASE_MOVED, &clp->cl_state);
+	nfs4_schedule_state_manager(clp);
+}
+EXPORT_SYMBOL_GPL(nfs4_schedule_lease_moved_recovery);
+
 int nfs4_wait_clnt_recover(struct nfs_client *clp)
 {
 	int res;
@@ -1661,7 +1677,6 @@ static int nfs4_recovery_handle_error(struct nfs_client *clp, int error)
 			nfs4_state_end_reclaim_reboot(clp);
 			break;
 		case -NFS4ERR_STALE_CLIENTID:
-		case -NFS4ERR_LEASE_MOVED:
 			set_bit(NFS4CLNT_LEASE_EXPIRED, &clp->cl_state);
 			nfs4_state_clear_reclaim_reboot(clp);
 			nfs4_state_start_reclaim_reboot(clp);
@@ -1975,6 +1990,55 @@ restart:
 	return 0;
 }
 
+/*
+ * Test each nfs_server on the clp's cl_superblocks list to see
+ * if it's moved to another server.  Stop when the server no longer
+ * returns NFS4ERR_LEASE_MOVED.
+ */
+static int nfs4_handle_lease_moved(struct nfs_client *clp)
+{
+	const struct nfs4_state_maintenance_ops *ops =
+				clp->cl_mvops->state_renewal_ops;
+	struct nfs_server *server;
+	struct rpc_cred *cred;
+
+	dprintk("%s: lease moved reported on \"%s\"\n", __func__,
+			clp->cl_hostname);
+
+	spin_lock(&clp->cl_lock);
+	cred = ops->get_state_renewal_cred_locked(clp);
+	spin_unlock(&clp->cl_lock);
+	if (cred == NULL)
+		return -NFS4ERR_NOENT;
+
+	clp->cl_mig_gen++;
+restart:
+	rcu_read_lock();
+	list_for_each_entry_rcu(server, &clp->cl_superblocks, client_link) {
+		struct inode *inode;
+		int status;
+
+		if (server->mig_gen == clp->cl_mig_gen)
+			continue;
+		server->mig_gen = clp->cl_mig_gen;
+
+		rcu_read_unlock();
+
+		inode = server->super->s_root->d_inode;
+		status = nfs4_proc_fsid_present(inode, cred);
+		if (status != -NFS4ERR_MOVED)
+			goto restart;	/* wasn't this one */
+		if (nfs4_try_migration(server, cred) == -NFS4ERR_LEASE_MOVED)
+			goto restart;	/* there are more */
+		goto out;
+	}
+	rcu_read_unlock();
+
+out:
+	put_rpccred(cred);
+	return 0;
+}
+
 /**
  * nfs4_discover_server_trunking - Detect server IP address trunking
  *
@@ -2312,6 +2376,13 @@ static void nfs4_state_manager(struct nfs_client *clp)
 				goto out_error;
 		}
 
+		if (test_and_clear_bit(NFS4CLNT_LEASE_MOVED, &clp->cl_state)) {
+			section = "lease moved";
+			status = nfs4_handle_lease_moved(clp);
+			if (status < 0)
+				goto out_error;
+		}
+
 		/* First recover reboot state... */
 		if (test_bit(NFS4CLNT_RECLAIM_REBOOT, &clp->cl_state)) {
 			section = "reclaim reboot";
-- 
cgit 


From 8ef2f8d46aca7ff2e7e2b926bb563212aa63a4af Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 14:13:41 -0400
Subject: NFS: Implement support for NFS4ERR_LEASE_MOVED

Trigger lease-moved recovery when a request returns
NFS4ERR_LEASE_MOVED.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4proc.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 01b90bd341bb..2564e1c89f56 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -389,6 +389,9 @@ static int nfs4_handle_exception(struct nfs_server *server, int errorcode, struc
 			if (ret < 0)
 				break;
 			goto wait_on_recovery;
+		case -NFS4ERR_LEASE_MOVED:
+			nfs4_schedule_lease_moved_recovery(clp);
+			goto wait_on_recovery;
 #if defined(CONFIG_NFS_V4_1)
 		case -NFS4ERR_BADSESSION:
 		case -NFS4ERR_BADSLOT:
@@ -1578,6 +1581,9 @@ static int nfs4_handle_delegation_recall_error(struct nfs_server *server, struct
 		case -NFS4ERR_MOVED:
 			nfs4_schedule_migration_recovery(server);
 			return -EAGAIN;
+		case -NFS4ERR_LEASE_MOVED:
+			nfs4_schedule_lease_moved_recovery(server->nfs_client);
+			return -EAGAIN;
 		case -NFS4ERR_DELEG_REVOKED:
 		case -NFS4ERR_ADMIN_REVOKED:
 		case -NFS4ERR_BAD_STATEID:
@@ -4758,6 +4764,9 @@ nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
 			if (nfs4_schedule_migration_recovery(server) < 0)
 				goto recovery_failed;
 			goto wait_on_recovery;
+		case -NFS4ERR_LEASE_MOVED:
+			nfs4_schedule_lease_moved_recovery(clp);
+			goto wait_on_recovery;
 #if defined(CONFIG_NFS_V4_1)
 		case -NFS4ERR_BADSESSION:
 		case -NFS4ERR_BADSLOT:
-- 
cgit 


From 60ea68129942dc36cd1a3a9bdaec783369ee5a6d Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 14:13:47 -0400
Subject: NFS: Migration support for RELEASE_LOCKOWNER

Currently the Linux NFS client ignores the operation status code for
the RELEASE_LOCKOWNER operation.  Like NFSv3's UMNT operation,
RELEASE_LOCKOWNER is a courtesy to help servers manage their
resources, and the outcome is not consequential for the client.

During a migration, a server may report NFS4ERR_LEASE_MOVED, in
which case the client really should retry, since typically
LEASE_MOVED has nothing to do with the current operation, but does
prevent it from going forward.

Also, it's important for a client to respond as soon as possible to
a moved lease condition, since the client's lease could expire on
the destination without further action by the client.

NFS4ERR_DELAY is not included in the list of valid status codes for
RELEASE_LOCKOWNER in RFC 3530bis.  However, rfc3530-migration-update
does permit migration-capable servers to return DELAY to clients,
but only in the context of an ongoing migration.  In this case the
server has frozen lock state in preparation for migration, and a
client retry would help the destination server purge unneeded state
once migration recovery is complete.

Interestly, NFS4ERR_MOVED is not valid for RELEASE_LOCKOWNER, even
though lock owners can be migrated with Transparent State Migration.

Note that RFC 3530bis section 9.5 includes RELEASE_LOCKOWNER in the
list of operations that renew a client's lease on the server if they
succeed.  Now that our client pays attention to the operation's
status code, we can note that renewal appropriately.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4proc.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 2564e1c89f56..9f2ccf7471ee 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -5800,6 +5800,7 @@ struct nfs_release_lockowner_data {
 	struct nfs_release_lockowner_args args;
 	struct nfs4_sequence_args seq_args;
 	struct nfs4_sequence_res seq_res;
+	unsigned long timestamp;
 };
 
 static void nfs4_release_lockowner_prepare(struct rpc_task *task, void *calldata)
@@ -5807,12 +5808,27 @@ static void nfs4_release_lockowner_prepare(struct rpc_task *task, void *calldata
 	struct nfs_release_lockowner_data *data = calldata;
 	nfs40_setup_sequence(data->server,
 				&data->seq_args, &data->seq_res, task);
+	data->timestamp = jiffies;
 }
 
 static void nfs4_release_lockowner_done(struct rpc_task *task, void *calldata)
 {
 	struct nfs_release_lockowner_data *data = calldata;
+	struct nfs_server *server = data->server;
+
 	nfs40_sequence_done(task, &data->seq_res);
+
+	switch (task->tk_status) {
+	case 0:
+		renew_lease(server, data->timestamp);
+		break;
+	case -NFS4ERR_STALE_CLIENTID:
+	case -NFS4ERR_EXPIRED:
+	case -NFS4ERR_LEASE_MOVED:
+	case -NFS4ERR_DELAY:
+		if (nfs4_async_handle_error(task, server, NULL) == -EAGAIN)
+			rpc_restart_call_prepare(task);
+	}
 }
 
 static void nfs4_release_lockowner_release(void *calldata)
-- 
cgit 


From f8aba1e8d509c0db7a82893e595a7743ce07ea83 Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 14:13:53 -0400
Subject: NFS: Handle NFS4ERR_LEASE_MOVED during async RENEW

With NFSv4 minor version 0, the asynchronous lease RENEW
heartbeat can return NFS4ERR_LEASE_MOVED.  Error recovery logic for
async RENEW is a separate code path from the generic NFS proc paths,
so it must be updated to handle NFS4ERR_LEASE_MOVED as well.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4proc.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 9f2ccf7471ee..8aa8ff3fd5e7 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4235,7 +4235,13 @@ static void nfs4_renew_done(struct rpc_task *task, void *calldata)
 	unsigned long timestamp = data->timestamp;
 
 	trace_nfs4_renew_async(clp, task->tk_status);
-	if (task->tk_status < 0) {
+	switch (task->tk_status) {
+	case 0:
+		break;
+	case -NFS4ERR_LEASE_MOVED:
+		nfs4_schedule_lease_moved_recovery(clp);
+		break;
+	default:
 		/* Unless we're shutting down, schedule state recovery! */
 		if (test_bit(NFS_CS_RENEWD, &clp->cl_res_state) == 0)
 			return;
-- 
cgit 


From d1c2331e75d7a5a22e2910a8bd042ea90b543db1 Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 14:13:58 -0400
Subject: NFS: Handle SEQ4_STATUS_LEASE_MOVED

With the advent of NFSv4 sessions in NFSv4.1 and following, a "lease
moved" condition is reported differently than it is in NFSv4.0.

NFSv4 minor version 0 servers return an error status code,
NFS4ERR_LEASE_MOVED, to signal that a lease has moved.  This error
causes the whole compound operation to fail.  Normal compounds
against this server continue to fail until the client performs
migration recovery on the migrated share.

Minor version 1 and later servers assert a bit flag in the reply to
a compound's SEQUENCE operation to signal LEASE_MOVED.  This is not
a fatal condition: operations against this server continue normally.
The server asserts this flag until the client performs migration
recovery on the migrated share.

Note that servers MUST NOT return NFS4ERR_LEASE_MOVED to NFSv4
clients not using NFSv4.0.

After the server asserts any of the sr_status_flags in the SEQUENCE
operation in a typical compound, our client initiates standard lease
recovery.  For NFSv4.1+, a stand-alone SEQUENCE operation is
performed to discover what recovery is needed.

If SEQ4_STATUS_LEASE_MOVED is asserted in this stand-alone SEQUENCE
operation, our client attempts to discover which FSIDs have been
migrated, and then performs migration recovery on each.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4state.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 552706d2d776..62c08bf60e65 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -2227,9 +2227,10 @@ void nfs41_handle_sequence_flag_errors(struct nfs_client *clp, u32 flags)
 		nfs41_handle_server_reboot(clp);
 	if (flags & (SEQ4_STATUS_EXPIRED_ALL_STATE_REVOKED |
 			    SEQ4_STATUS_EXPIRED_SOME_STATE_REVOKED |
-			    SEQ4_STATUS_ADMIN_STATE_REVOKED |
-			    SEQ4_STATUS_LEASE_MOVED))
+			    SEQ4_STATUS_ADMIN_STATE_REVOKED))
 		nfs41_handle_state_revoked(clp);
+	if (flags & SEQ4_STATUS_LEASE_MOVED)
+		nfs4_schedule_lease_moved_recovery(clp);
 	if (flags & SEQ4_STATUS_RECALLABLE_STATE_REVOKED)
 		nfs41_handle_recallable_state_revoked(clp);
 	if (flags & SEQ4_STATUS_BACKCHANNEL_FAULT)
-- 
cgit 


From cd3fadece2b97462583500371a3eb9b091c49603 Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 14:14:04 -0400
Subject: NFS: Set EXCHGID4_FLAG_SUPP_MOVED_MIGR

Broadly speaking, v4.1 migration is untested.  There are no servers
in the wild that support NFSv4.1 migration.  However, as server
implementations become available, we do want to enable testing by
developers, while leaving it disabled for environments for which
broken migration support would be an unpleasant surprise.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/Kconfig    | 11 +++++++++++
 fs/nfs/nfs4proc.c |  8 +++++++-
 2 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
index b5e80b0af315..38c1768b4142 100644
--- a/fs/nfs/Kconfig
+++ b/fs/nfs/Kconfig
@@ -140,6 +140,17 @@ config NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
 	  If the NFS client is unchanged from the upstream kernel, this
 	  option should be set to the default "kernel.org".
 
+config NFS_V4_1_MIGRATION
+	bool "NFSv4.1 client support for migration"
+	depends on NFS_V4_1
+	default n
+	help
+	  This option makes the NFS client advertise to NFSv4.1 servers that
+          it can support NFSv4 migration.
+
+          The NFSv4.1 pieces of the Linux NFSv4 migration implementation are
+          still experimental.  If you are not an NFSv4 developer, say N here.
+
 config NFS_V4_SECURITY_LABEL
 	bool
 	depends on NFS_V4_2 && SECURITY
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 8aa8ff3fd5e7..1463c71b0862 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -6596,8 +6596,14 @@ static int _nfs4_proc_exchange_id(struct nfs_client *clp, struct rpc_cred *cred,
 	struct nfs41_exchange_id_args args = {
 		.verifier = &verifier,
 		.client = clp,
+#ifdef CONFIG_NFS_V4_1_MIGRATION
 		.flags = EXCHGID4_FLAG_SUPP_MOVED_REFER |
-			EXCHGID4_FLAG_BIND_PRINC_STATEID,
+			 EXCHGID4_FLAG_BIND_PRINC_STATEID |
+			 EXCHGID4_FLAG_SUPP_MOVED_MIGR,
+#else
+		.flags = EXCHGID4_FLAG_SUPP_MOVED_REFER |
+			 EXCHGID4_FLAG_BIND_PRINC_STATEID,
+#endif
 	};
 	struct nfs41_exchange_id_res res = {
 		0
-- 
cgit 


From 0625c2dd6ae32a221871ffc04bb752216b823001 Mon Sep 17 00:00:00 2001
From: Chuck Lever <chuck.lever@oracle.com>
Date: Thu, 17 Oct 2013 14:14:10 -0400
Subject: NFS: Fix possible endless state recovery wait

In nfs4_wait_clnt_recover(), hold a reference to the clp being
waited on.  The state manager can reduce clp->cl_count to 1, in
which case the nfs_put_client() in nfs4_run_state_manager() can
free *clp before wait_on_bit() returns and allows
nfs4_wait_clnt_recover() to run again.

The behavior at that point is non-deterministic.  If the waited-on
bit still happens to be zero, wait_on_bit() will wake the waiter as
expected.  If the bit is set again (say, if the memory was poisoned
when freed) wait_on_bit() can leave the waiter asleep.

This is a narrow fix which ensures the safety of accessing *clp in
nfs4_wait_clnt_recover(), but does not address the continued use
of a possibly freed *clp after nfs4_wait_clnt_recover() returns
(see nfs_end_delegation_return(), for example).

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4state.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 62c08bf60e65..452f4c8dadea 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1255,14 +1255,16 @@ int nfs4_wait_clnt_recover(struct nfs_client *clp)
 
 	might_sleep();
 
+	atomic_inc(&clp->cl_count);
 	res = wait_on_bit(&clp->cl_state, NFS4CLNT_MANAGER_RUNNING,
 			nfs_wait_bit_killable, TASK_KILLABLE);
 	if (res)
-		return res;
-
+		goto out;
 	if (clp->cl_cons_state < 0)
-		return clp->cl_cons_state;
-	return 0;
+		res = clp->cl_cons_state;
+out:
+	nfs_put_client(clp);
+	return res;
 }
 
 int nfs4_client_recover_expired_lease(struct nfs_client *clp)
-- 
cgit 


From 47fd88e6b79c55e6acccaf832078ed1a340672fa Mon Sep 17 00:00:00 2001
From: Weston Andros Adamson <dros@netapp.com>
Date: Fri, 18 Oct 2013 15:15:15 -0400
Subject: NFSv4: make nfs_find_best_sec static

It's not used outside of nfs4namespace.c anymore.

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4_fs.h       | 1 -
 fs/nfs/nfs4namespace.c | 2 +-
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 210e44ed1d2a..3ce79b04522e 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -222,7 +222,6 @@ int nfs_atomic_open(struct inode *, struct dentry *, struct file *,
 extern struct file_system_type nfs4_fs_type;
 
 /* nfs4namespace.c */
-rpc_authflavor_t nfs_find_best_sec(struct nfs4_secinfo_flavors *);
 struct rpc_clnt *nfs4_create_sec_client(struct rpc_clnt *, struct inode *, struct qstr *);
 struct vfsmount *nfs4_submount(struct nfs_server *, struct dentry *,
 			       struct nfs_fh *, struct nfs_fattr *);
diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c
index ebd8b064843b..4ec0eea68fdf 100644
--- a/fs/nfs/nfs4namespace.c
+++ b/fs/nfs/nfs4namespace.c
@@ -145,7 +145,7 @@ static size_t nfs_parse_server_name(char *string, size_t len,
  * is searched in the order returned from the server, per RFC 3530
  * recommendation.
  */
-rpc_authflavor_t nfs_find_best_sec(struct nfs4_secinfo_flavors *flavors)
+static rpc_authflavor_t nfs_find_best_sec(struct nfs4_secinfo_flavors *flavors)
 {
 	rpc_authflavor_t pseudoflavor;
 	struct nfs4_secinfo4 *secinfo;
-- 
cgit 


From 3228f48be2d19b2dd90db96ec16a40187a2946f3 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Mon, 28 Oct 2013 13:33:58 -0600
Subject: blk-mq: fix for flush deadlock

The flush state machine takes in a struct request, which then is
submitted multiple times to the underling driver.  The old block code
requeses the same request for each of those, so it does not have an
issue with tapping into the request pool.  The new one on the other hand
allocates a new request for each of the actualy steps of the flush
sequence. If have already allocated all of the tags for IO, we will
fail allocating the flush request.

Set aside a reserved request just for flushes.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-core.c       |  2 +-
 block/blk-flush.c      |  2 +-
 block/blk-mq.c         | 14 ++++++++++++--
 include/linux/blk-mq.h |  2 +-
 4 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index 3bb9e9f7f87e..9677c6525ed8 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1102,7 +1102,7 @@ static struct request *blk_old_get_request(struct request_queue *q, int rw,
 struct request *blk_get_request(struct request_queue *q, int rw, gfp_t gfp_mask)
 {
 	if (q->mq_ops)
-		return blk_mq_alloc_request(q, rw, gfp_mask);
+		return blk_mq_alloc_request(q, rw, gfp_mask, false);
 	else
 		return blk_old_get_request(q, rw, gfp_mask);
 }
diff --git a/block/blk-flush.c b/block/blk-flush.c
index 3e4cc9c7890a..331e627301ea 100644
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -286,7 +286,7 @@ static void mq_flush_work(struct work_struct *work)
 
 	/* We don't need set REQ_FLUSH_SEQ, it's for consistency */
 	rq = blk_mq_alloc_request(q, WRITE_FLUSH|REQ_FLUSH_SEQ,
-		__GFP_WAIT|GFP_ATOMIC);
+		__GFP_WAIT|GFP_ATOMIC, true);
 	rq->cmd_type = REQ_TYPE_FS;
 	rq->end_io = flush_end_io;
 
diff --git a/block/blk-mq.c b/block/blk-mq.c
index ac804c635040..2dc8de86d0d2 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -210,14 +210,15 @@ static struct request *blk_mq_alloc_request_pinned(struct request_queue *q,
 	return rq;
 }
 
-struct request *blk_mq_alloc_request(struct request_queue *q, int rw, gfp_t gfp)
+struct request *blk_mq_alloc_request(struct request_queue *q, int rw,
+		gfp_t gfp, bool reserved)
 {
 	struct request *rq;
 
 	if (blk_mq_queue_enter(q))
 		return NULL;
 
-	rq = blk_mq_alloc_request_pinned(q, rw, gfp, false);
+	rq = blk_mq_alloc_request_pinned(q, rw, gfp, reserved);
 	blk_mq_put_ctx(rq->mq_ctx);
 	return rq;
 }
@@ -1327,6 +1328,15 @@ struct request_queue *blk_mq_init_queue(struct blk_mq_reg *reg,
 		reg->queue_depth = BLK_MQ_MAX_DEPTH;
 	}
 
+	/*
+	 * Set aside a tag for flush requests.  It will only be used while
+	 * another flush request is in progress but outside the driver.
+	 *
+	 * TODO: only allocate if flushes are supported
+	 */
+	reg->queue_depth++;
+	reg->reserved_tags++;
+
 	if (reg->queue_depth < (reg->reserved_tags + BLK_MQ_TAG_MIN))
 		return ERR_PTR(-EINVAL);
 
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 3368b97bee73..ab0e9b2025b3 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -124,7 +124,7 @@ void blk_mq_insert_request(struct request_queue *, struct request *, bool);
 void blk_mq_run_queues(struct request_queue *q, bool async);
 void blk_mq_free_request(struct request *rq);
 bool blk_mq_can_queue(struct blk_mq_hw_ctx *);
-struct request *blk_mq_alloc_request(struct request_queue *q, int rw, gfp_t gfp);
+struct request *blk_mq_alloc_request(struct request_queue *q, int rw, gfp_t gfp, bool reserved);
 struct request *blk_mq_alloc_reserved_request(struct request_queue *q, int rw, gfp_t gfp);
 struct request *blk_mq_rq_from_tag(struct request_queue *q, unsigned int tag);
 
-- 
cgit 


From a3f73c27afff9590a4432879b7145289cb89cf0a Mon Sep 17 00:00:00 2001
From: Weston Andros Adamson <dros@netapp.com>
Date: Fri, 18 Oct 2013 15:15:16 -0400
Subject: NFS: separate passed security flavs from selected

When filling parsed_mount_data, store the parsed sec= mount option in
the new struct nfs_auth_info and the chosen flavor in selected_flavor.

This patch lays the groundwork for supporting multiple sec= options.

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/client.c         |  3 ++-
 fs/nfs/internal.h       |  4 ++--
 fs/nfs/nfs4client.c     | 16 +++++++++-------
 fs/nfs/super.c          | 47 ++++++++++++++++++++++-------------------------
 include/linux/nfs_xdr.h |  6 ++++++
 5 files changed, 41 insertions(+), 35 deletions(-)

diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 692fd0e9362f..f5a7f7f9cd59 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -787,7 +787,8 @@ static int nfs_init_server(struct nfs_server *server,
 
 	server->port = data->nfs_server.port;
 
-	error = nfs_init_server_rpcclient(server, &timeparms, data->auth_flavors[0]);
+	error = nfs_init_server_rpcclient(server, &timeparms,
+					  data->selected_flavor);
 	if (error < 0)
 		goto error;
 
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index e5a6bd12562a..c8cd044f0982 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -88,8 +88,8 @@ struct nfs_parsed_mount_data {
 	unsigned int		namlen;
 	unsigned int		options;
 	unsigned int		bsize;
-	unsigned int		auth_flavor_len;
-	rpc_authflavor_t	auth_flavors[1];
+	struct nfs_auth_info	auth_info;
+	rpc_authflavor_t	selected_flavor;
 	char			*client_address;
 	unsigned int		version;
 	unsigned int		minorversion;
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index 0cde95e9bd6a..d65090e5d00f 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -949,9 +949,8 @@ out:
  * Create a version 4 volume record
  */
 static int nfs4_init_server(struct nfs_server *server,
-		const struct nfs_parsed_mount_data *data)
+		struct nfs_parsed_mount_data *data)
 {
-	rpc_authflavor_t pseudoflavor = RPC_AUTH_UNIX;
 	struct rpc_timeout timeparms;
 	int error;
 
@@ -964,8 +963,10 @@ static int nfs4_init_server(struct nfs_server *server,
 	server->flags = data->flags;
 	server->options = data->options;
 
-	if (data->auth_flavor_len >= 1)
-		pseudoflavor = data->auth_flavors[0];
+	if (data->auth_info.flavor_len >= 1)
+		data->selected_flavor = data->auth_info.flavors[0];
+	else
+		data->selected_flavor = RPC_AUTH_UNIX;
 
 	/* Get a client record */
 	error = nfs4_set_client(server,
@@ -973,7 +974,7 @@ static int nfs4_init_server(struct nfs_server *server,
 			(const struct sockaddr *)&data->nfs_server.address,
 			data->nfs_server.addrlen,
 			data->client_address,
-			pseudoflavor,
+			data->selected_flavor,
 			data->nfs_server.protocol,
 			&timeparms,
 			data->minorversion,
@@ -993,7 +994,8 @@ static int nfs4_init_server(struct nfs_server *server,
 
 	server->port = data->nfs_server.port;
 
-	error = nfs_init_server_rpcclient(server, &timeparms, pseudoflavor);
+	error = nfs_init_server_rpcclient(server, &timeparms,
+					  data->selected_flavor);
 
 error:
 	/* Done */
@@ -1020,7 +1022,7 @@ struct nfs_server *nfs4_create_server(struct nfs_mount_info *mount_info,
 	if (!server)
 		return ERR_PTR(-ENOMEM);
 
-	auth_probe = mount_info->parsed->auth_flavor_len < 1;
+	auth_probe = mount_info->parsed->auth_info.flavor_len < 1;
 
 	/* set up the general RPC client */
 	error = nfs4_init_server(server, mount_info->parsed);
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index e26647be69ce..b87744fb9dcd 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -923,8 +923,7 @@ static struct nfs_parsed_mount_data *nfs_alloc_parsed_mount_data(void)
 		data->mount_server.port	= NFS_UNSPEC_PORT;
 		data->nfs_server.port	= NFS_UNSPEC_PORT;
 		data->nfs_server.protocol = XPRT_TRANSPORT_TCP;
-		data->auth_flavors[0]	= RPC_AUTH_MAXFLAVOR;
-		data->auth_flavor_len	= 0;
+		data->selected_flavor	= RPC_AUTH_MAXFLAVOR;
 		data->minorversion	= 0;
 		data->need_mount	= true;
 		data->net		= current->nsproxy->net_ns;
@@ -1019,13 +1018,6 @@ static void nfs_set_mount_transport_protocol(struct nfs_parsed_mount_data *mnt)
 	}
 }
 
-static void nfs_set_auth_parsed_mount_data(struct nfs_parsed_mount_data *data,
-		rpc_authflavor_t pseudoflavor)
-{
-	data->auth_flavors[0] = pseudoflavor;
-	data->auth_flavor_len = 1;
-}
-
 /*
  * Parse the value of the 'sec=' option.
  */
@@ -1076,7 +1068,8 @@ static int nfs_parse_security_flavors(char *value,
 	}
 
 	mnt->flags |= NFS_MOUNT_SECFLAVOUR;
-	nfs_set_auth_parsed_mount_data(mnt, pseudoflavor);
+	mnt->auth_info.flavors[0] = pseudoflavor;
+	mnt->auth_info.flavor_len = 1;
 	return 1;
 }
 
@@ -1623,7 +1616,7 @@ out_security_failure:
 }
 
 /*
- * Ensure that the specified authtype in args->auth_flavors[0] is supported by
+ * Ensure that the specified authtype in args->auth_info is supported by
  * the server. Returns 0 if it's ok, and -EACCES if not.
  */
 static int nfs_verify_authflavor(struct nfs_parsed_mount_data *args,
@@ -1640,17 +1633,18 @@ static int nfs_verify_authflavor(struct nfs_parsed_mount_data *args,
 	 * can be used.
 	 */
 	for (i = 0; i < count; i++) {
-		if (args->auth_flavors[0] == server_authlist[i] ||
+		if (args->auth_info.flavors[0] == server_authlist[i] ||
 		    server_authlist[i] == RPC_AUTH_NULL)
 			goto out;
 	}
 
 	dfprintk(MOUNT, "NFS: auth flavor %u not supported by server\n",
-		args->auth_flavors[0]);
+		args->auth_info.flavors[0]);
 	return -EACCES;
 
 out:
-	dfprintk(MOUNT, "NFS: using auth flavor %u\n", args->auth_flavors[0]);
+	args->selected_flavor = args->auth_info.flavors[0];
+	dfprintk(MOUNT, "NFS: using auth flavor %u\n", args->selected_flavor);
 	return 0;
 }
 
@@ -1738,9 +1732,10 @@ static struct nfs_server *nfs_try_mount_request(struct nfs_mount_info *mount_inf
 	 * Was a sec= authflavor specified in the options? First, verify
 	 * whether the server supports it, and then just try to use it if so.
 	 */
-	if (args->auth_flavor_len > 0) {
+	if (args->auth_info.flavor_len > 0) {
 		status = nfs_verify_authflavor(args, authlist, authlist_len);
-		dfprintk(MOUNT, "NFS: using auth flavor %u\n", args->auth_flavors[0]);
+		dfprintk(MOUNT, "NFS: using auth flavor %u\n",
+			 args->selected_flavor);
 		if (status)
 			return ERR_PTR(status);
 		return nfs_mod->rpc_ops->create_server(mount_info, nfs_mod);
@@ -1769,7 +1764,7 @@ static struct nfs_server *nfs_try_mount_request(struct nfs_mount_info *mount_inf
 			/* Fallthrough */
 		}
 		dfprintk(MOUNT, "NFS: attempting to use auth flavor %u\n", flavor);
-		nfs_set_auth_parsed_mount_data(args, flavor);
+		args->selected_flavor = flavor;
 		server = nfs_mod->rpc_ops->create_server(mount_info, nfs_mod);
 		if (!IS_ERR(server))
 			return server;
@@ -1785,7 +1780,7 @@ static struct nfs_server *nfs_try_mount_request(struct nfs_mount_info *mount_inf
 
 	/* Last chance! Try AUTH_UNIX */
 	dfprintk(MOUNT, "NFS: attempting to use auth flavor %u\n", RPC_AUTH_UNIX);
-	nfs_set_auth_parsed_mount_data(args, RPC_AUTH_UNIX);
+	args->selected_flavor = RPC_AUTH_UNIX;
 	return nfs_mod->rpc_ops->create_server(mount_info, nfs_mod);
 }
 
@@ -1972,9 +1967,9 @@ static int nfs23_validate_mount_data(void *options,
 		args->bsize		= data->bsize;
 
 		if (data->flags & NFS_MOUNT_SECFLAVOUR)
-			nfs_set_auth_parsed_mount_data(args, data->pseudoflavor);
+			args->selected_flavor = data->pseudoflavor;
 		else
-			nfs_set_auth_parsed_mount_data(args, RPC_AUTH_UNIX);
+			args->selected_flavor = RPC_AUTH_UNIX;
 		if (!args->nfs_server.hostname)
 			goto out_nomem;
 
@@ -2108,7 +2103,7 @@ static int nfs_validate_text_mount_data(void *options,
 
 	nfs_set_port(sap, &args->nfs_server.port, port);
 
-	if (args->auth_flavor_len > 1)
+	if (args->auth_info.flavor_len > 1)
 		goto out_bad_auth;
 
 	return nfs_parse_devname(dev_name,
@@ -2146,7 +2141,7 @@ nfs_compare_remount_data(struct nfs_server *nfss,
 	    data->version != nfss->nfs_client->rpc_ops->version ||
 	    data->minorversion != nfss->nfs_client->cl_minorversion ||
 	    data->retrans != nfss->client->cl_timeout->to_retries ||
-	    data->auth_flavors[0] != nfss->client->cl_auth->au_flavor ||
+	    data->selected_flavor != nfss->client->cl_auth->au_flavor ||
 	    data->acregmin != nfss->acregmin / HZ ||
 	    data->acregmax != nfss->acregmax / HZ ||
 	    data->acdirmin != nfss->acdirmin / HZ ||
@@ -2191,7 +2186,9 @@ nfs_remount(struct super_block *sb, int *flags, char *raw_data)
 	data->rsize = nfss->rsize;
 	data->wsize = nfss->wsize;
 	data->retrans = nfss->client->cl_timeout->to_retries;
-	nfs_set_auth_parsed_mount_data(data, nfss->client->cl_auth->au_flavor);
+	data->selected_flavor = nfss->client->cl_auth->au_flavor;
+	data->auth_info.flavors[0] = nfss->client->cl_auth->au_flavor;
+	data->auth_info.flavor_len = 1;
 	data->acregmin = nfss->acregmin / HZ;
 	data->acregmax = nfss->acregmax / HZ;
 	data->acdirmin = nfss->acdirmin / HZ;
@@ -2718,9 +2715,9 @@ static int nfs4_validate_mount_data(void *options,
 					   data->auth_flavours,
 					   sizeof(pseudoflavor)))
 				return -EFAULT;
-			nfs_set_auth_parsed_mount_data(args, pseudoflavor);
+			args->selected_flavor = pseudoflavor;
 		} else
-			nfs_set_auth_parsed_mount_data(args, RPC_AUTH_UNIX);
+			args->selected_flavor = RPC_AUTH_UNIX;
 
 		c = strndup_user(data->hostname.data, NFS4_MAXNAMLEN);
 		if (IS_ERR(c))
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 8fe5b940c5f2..658104acf13b 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -591,6 +591,12 @@ struct nfs_renameres {
 	struct nfs_fattr		*new_fattr;
 };
 
+/* parsed sec= options */
+struct nfs_auth_info {
+	unsigned int            flavor_len;
+	rpc_authflavor_t        flavors[1];
+};
+
 /*
  * Argument struct for decode_entry function
  */
-- 
cgit 


From 0f5f49b8b3593309fd3c3a2080a5fd465afdbe16 Mon Sep 17 00:00:00 2001
From: Weston Andros Adamson <dros@netapp.com>
Date: Fri, 18 Oct 2013 15:15:17 -0400
Subject: NFS: cache parsed auth_info in nfs_server

Cache the auth_info structure in nfs_server and pass these values to submounts.

This lays the groundwork for supporting multiple sec= options.

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/client.c           | 2 ++
 fs/nfs/nfs4client.c       | 1 +
 fs/nfs/super.c            | 3 +--
 include/linux/nfs_fs_sb.h | 1 +
 4 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index f5a7f7f9cd59..1d09289c8f0e 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -786,6 +786,7 @@ static int nfs_init_server(struct nfs_server *server,
 		goto error;
 
 	server->port = data->nfs_server.port;
+	server->auth_info = data->auth_info;
 
 	error = nfs_init_server_rpcclient(server, &timeparms,
 					  data->selected_flavor);
@@ -929,6 +930,7 @@ void nfs_server_copy_userdata(struct nfs_server *target, struct nfs_server *sour
 	target->acdirmax = source->acdirmax;
 	target->caps = source->caps;
 	target->options = source->options;
+	target->auth_info = source->auth_info;
 }
 EXPORT_SYMBOL_GPL(nfs_server_copy_userdata);
 
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index d65090e5d00f..04131c837f27 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -962,6 +962,7 @@ static int nfs4_init_server(struct nfs_server *server,
 	/* Initialise the client representation from the mount data */
 	server->flags = data->flags;
 	server->options = data->options;
+	server->auth_info = data->auth_info;
 
 	if (data->auth_info.flavor_len >= 1)
 		data->selected_flavor = data->auth_info.flavors[0];
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index b87744fb9dcd..de1e5e89c93d 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2187,8 +2187,7 @@ nfs_remount(struct super_block *sb, int *flags, char *raw_data)
 	data->wsize = nfss->wsize;
 	data->retrans = nfss->client->cl_timeout->to_retries;
 	data->selected_flavor = nfss->client->cl_auth->au_flavor;
-	data->auth_info.flavors[0] = nfss->client->cl_auth->au_flavor;
-	data->auth_info.flavor_len = 1;
+	data->auth_info = nfss->auth_info;
 	data->acregmin = nfss->acregmin / HZ;
 	data->acregmax = nfss->acregmax / HZ;
 	data->acdirmin = nfss->acdirmin / HZ;
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index 186ec4969313..1150ea41b626 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -151,6 +151,7 @@ struct nfs_server {
 	unsigned long		mount_time;	/* when this fs was mounted */
 	struct super_block	*super;		/* VFS super block */
 	dev_t			s_dev;		/* superblock dev numbers */
+	struct nfs_auth_info	auth_info;	/* parsed auth flavors */
 
 #ifdef CONFIG_NFS_FSCACHE
 	struct nfs_fscache_key	*fscache_key;	/* unique key for superblock */
-- 
cgit 


From 5837f6dfcb00f764976ddc178933e612702cbf54 Mon Sep 17 00:00:00 2001
From: Weston Andros Adamson <dros@netapp.com>
Date: Fri, 18 Oct 2013 15:15:18 -0400
Subject: NFS: stop using NFS_MOUNT_SECFLAVOUR server flag

Since the parsed sec= flavor is now stored in nfs_server->auth_info,
we no longer need an nfs_server flag to determine if a sec= option was
used.

This flag has not been completely removed because it is still needed for
the (old but still supported) non-text parsed mount options ABI
compatability.

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4client.c            | 6 ++++--
 fs/nfs/nfs4namespace.c         | 2 +-
 fs/nfs/nfs4proc.c              | 4 ++--
 fs/nfs/super.c                 | 3 +--
 include/uapi/linux/nfs_mount.h | 2 +-
 5 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index 04131c837f27..f6cc77c7d802 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -1051,6 +1051,7 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
 {
 	struct nfs_client *parent_client;
 	struct nfs_server *server, *parent_server;
+	bool auth_probe;
 	int error;
 
 	dprintk("--> nfs4_create_referral_server()\n");
@@ -1083,8 +1084,9 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data,
 	if (error < 0)
 		goto error;
 
-	error = nfs4_server_common_setup(server, mntfh,
-			!(parent_server->flags & NFS_MOUNT_SECFLAVOUR));
+	auth_probe = parent_server->auth_info.flavor_len < 1;
+
+	error = nfs4_server_common_setup(server, mntfh, auth_probe);
 	if (error < 0)
 		goto error;
 
diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c
index 4ec0eea68fdf..b947054f0ca1 100644
--- a/fs/nfs/nfs4namespace.c
+++ b/fs/nfs/nfs4namespace.c
@@ -390,7 +390,7 @@ struct vfsmount *nfs4_submount(struct nfs_server *server, struct dentry *dentry,
 
 	if (client->cl_auth->au_flavor != flavor)
 		flavor = client->cl_auth->au_flavor;
-	else if (!(server->flags & NFS_MOUNT_SECFLAVOUR)) {
+	else if (server->auth_info.flavor_len == 0) {
 		rpc_authflavor_t new = nfs4_negotiate_security(dir, name);
 		if ((int)new >= 0)
 			flavor = new;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 1463c71b0862..0eb8dc5792da 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2920,7 +2920,7 @@ int nfs4_proc_get_rootfh(struct nfs_server *server, struct nfs_fh *fhandle,
 		if (status != -NFS4ERR_WRONGSEC)
 			break;
 		/* Did user force a 'sec=' mount option? */
-		if (server->flags & NFS_MOUNT_SECFLAVOUR)
+		if (server->auth_info.flavor_len > 0)
 			break;
 	default:
 		status = nfs4_do_find_root_sec(server, fhandle, info);
@@ -3180,7 +3180,7 @@ static int nfs4_proc_lookup_common(struct rpc_clnt **clnt, struct inode *dir,
 			if (client != *clnt)
 				goto out;
 			/* No security negotiation if the user specified 'sec=' */
-			if (NFS_SERVER(dir)->flags & NFS_MOUNT_SECFLAVOUR)
+			if (NFS_SERVER(dir)->auth_info.flavor_len > 0)
 				goto out;
 			client = nfs4_create_sec_client(client, dir, name);
 			if (IS_ERR(client))
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index de1e5e89c93d..3a4f8bf5e5a5 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -1067,7 +1067,6 @@ static int nfs_parse_security_flavors(char *value,
 		return 0;
 	}
 
-	mnt->flags |= NFS_MOUNT_SECFLAVOUR;
 	mnt->auth_info.flavors[0] = pseudoflavor;
 	mnt->auth_info.flavor_len = 1;
 	return 1;
@@ -2332,7 +2331,7 @@ static int nfs_compare_mount_options(const struct super_block *s, const struct n
 		goto Ebusy;
 	if (a->acdirmax != b->acdirmax)
 		goto Ebusy;
-	if (b->flags & NFS_MOUNT_SECFLAVOUR &&
+	if (b->auth_info.flavor_len > 0 &&
 	   clnt_a->cl_auth->au_flavor != clnt_b->cl_auth->au_flavor)
 		goto Ebusy;
 	return 1;
diff --git a/include/uapi/linux/nfs_mount.h b/include/uapi/linux/nfs_mount.h
index 576bddd72e04..64b0f22f5c4c 100644
--- a/include/uapi/linux/nfs_mount.h
+++ b/include/uapi/linux/nfs_mount.h
@@ -60,7 +60,7 @@ struct nfs_mount_data {
 #define NFS_MOUNT_BROKEN_SUID	0x0400	/* 4 */
 #define NFS_MOUNT_NOACL		0x0800	/* 4 */
 #define NFS_MOUNT_STRICTLOCK	0x1000	/* reserved for NFSv4 */
-#define NFS_MOUNT_SECFLAVOUR	0x2000	/* 5 */
+#define NFS_MOUNT_SECFLAVOUR	0x2000	/* 5 non-text parsed mount data only */
 #define NFS_MOUNT_NORDIRPLUS	0x4000	/* 5 */
 #define NFS_MOUNT_UNSHARED	0x8000	/* 5 */
 #define NFS_MOUNT_FLAGMASK	0xFFFF
-- 
cgit 


From 4d4b69dd847a098cdca341c45326f6c6f61b8691 Mon Sep 17 00:00:00 2001
From: Weston Andros Adamson <dros@netapp.com>
Date: Fri, 18 Oct 2013 15:15:19 -0400
Subject: NFS: add support for multiple sec= mount options

This patch adds support for multiple security options which can be
specified using a colon-delimited list of security flavors (the same
syntax as nfsd's exports file).

This is useful, for instance, when NFSv4.x mounts cross SECINFO
boundaries. With this patch a user can use "sec=krb5i,krb5p"
to mount a remote filesystem using krb5i, but can still cross
into krb5p-only exports.

New mounts will try all security options before failing.  NFSv4.x
SECINFO results will be compared against the sec= flavors to
find the first flavor in both lists or if no match is found will
return -EPERM.

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/internal.h       |   1 +
 fs/nfs/nfs4client.c     |   3 +
 fs/nfs/nfs4namespace.c  |  17 +++--
 fs/nfs/nfs4proc.c       |  32 ++++++----
 fs/nfs/super.c          | 160 +++++++++++++++++++++++++++++++-----------------
 include/linux/nfs_xdr.h |   3 +-
 6 files changed, 145 insertions(+), 71 deletions(-)

diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index c8cd044f0982..bca6a3e3c49c 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -326,6 +326,7 @@ extern struct file_system_type nfs_xdev_fs_type;
 extern struct file_system_type nfs4_xdev_fs_type;
 extern struct file_system_type nfs4_referral_fs_type;
 #endif
+bool nfs_auth_info_match(const struct nfs_auth_info *, rpc_authflavor_t);
 struct dentry *nfs_try_mount(int, const char *, struct nfs_mount_info *,
 			struct nfs_subversion *);
 void nfs_initialise_sb(struct super_block *);
diff --git a/fs/nfs/nfs4client.c b/fs/nfs/nfs4client.c
index f6cc77c7d802..b4a160a405ce 100644
--- a/fs/nfs/nfs4client.c
+++ b/fs/nfs/nfs4client.c
@@ -964,6 +964,9 @@ static int nfs4_init_server(struct nfs_server *server,
 	server->options = data->options;
 	server->auth_info = data->auth_info;
 
+	/* Use the first specified auth flavor. If this flavor isn't
+	 * allowed by the server, use the SECINFO path to try the
+	 * other specified flavors */
 	if (data->auth_info.flavor_len >= 1)
 		data->selected_flavor = data->auth_info.flavors[0];
 	else
diff --git a/fs/nfs/nfs4namespace.c b/fs/nfs/nfs4namespace.c
index b947054f0ca1..c08cbf40c59e 100644
--- a/fs/nfs/nfs4namespace.c
+++ b/fs/nfs/nfs4namespace.c
@@ -137,6 +137,7 @@ static size_t nfs_parse_server_name(char *string, size_t len,
 
 /**
  * nfs_find_best_sec - Find a security mechanism supported locally
+ * @server: NFS server struct
  * @flavors: List of security tuples returned by SECINFO procedure
  *
  * Return the pseudoflavor of the first security mechanism in
@@ -145,7 +146,8 @@ static size_t nfs_parse_server_name(char *string, size_t len,
  * is searched in the order returned from the server, per RFC 3530
  * recommendation.
  */
-static rpc_authflavor_t nfs_find_best_sec(struct nfs4_secinfo_flavors *flavors)
+static rpc_authflavor_t nfs_find_best_sec(struct nfs_server *server,
+					  struct nfs4_secinfo_flavors *flavors)
 {
 	rpc_authflavor_t pseudoflavor;
 	struct nfs4_secinfo4 *secinfo;
@@ -160,12 +162,19 @@ static rpc_authflavor_t nfs_find_best_sec(struct nfs4_secinfo_flavors *flavors)
 		case RPC_AUTH_GSS:
 			pseudoflavor = rpcauth_get_pseudoflavor(secinfo->flavor,
 							&secinfo->flavor_info);
-			if (pseudoflavor != RPC_AUTH_MAXFLAVOR)
+			/* make sure pseudoflavor matches sec= mount opt */
+			if (pseudoflavor != RPC_AUTH_MAXFLAVOR &&
+			    nfs_auth_info_match(&server->auth_info,
+						pseudoflavor))
 				return pseudoflavor;
 			break;
 		}
 	}
 
+	/* if there were any sec= options then nothing matched */
+	if (server->auth_info.flavor_len > 0)
+		return -EPERM;
+
 	return RPC_AUTH_UNIX;
 }
 
@@ -187,7 +196,7 @@ static rpc_authflavor_t nfs4_negotiate_security(struct inode *inode, struct qstr
 		goto out;
 	}
 
-	flavor = nfs_find_best_sec(flavors);
+	flavor = nfs_find_best_sec(NFS_SERVER(inode), flavors);
 
 out:
 	put_page(page);
@@ -390,7 +399,7 @@ struct vfsmount *nfs4_submount(struct nfs_server *server, struct dentry *dentry,
 
 	if (client->cl_auth->au_flavor != flavor)
 		flavor = client->cl_auth->au_flavor;
-	else if (server->auth_info.flavor_len == 0) {
+	else {
 		rpc_authflavor_t new = nfs4_negotiate_security(dir, name);
 		if ((int)new >= 0)
 			flavor = new;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 0eb8dc5792da..b02c4cc7b0a9 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2873,11 +2873,24 @@ static int nfs4_find_root_sec(struct nfs_server *server, struct nfs_fh *fhandle,
 	int status = -EPERM;
 	size_t i;
 
-	for (i = 0; i < ARRAY_SIZE(flav_array); i++) {
-		status = nfs4_lookup_root_sec(server, fhandle, info, flav_array[i]);
-		if (status == -NFS4ERR_WRONGSEC || status == -EACCES)
-			continue;
-		break;
+	if (server->auth_info.flavor_len > 0) {
+		/* try each flavor specified by user */
+		for (i = 0; i < server->auth_info.flavor_len; i++) {
+			status = nfs4_lookup_root_sec(server, fhandle, info,
+						server->auth_info.flavors[i]);
+			if (status == -NFS4ERR_WRONGSEC || status == -EACCES)
+				continue;
+			break;
+		}
+	} else {
+		/* no flavors specified by user, try default list */
+		for (i = 0; i < ARRAY_SIZE(flav_array); i++) {
+			status = nfs4_lookup_root_sec(server, fhandle, info,
+						      flav_array[i]);
+			if (status == -NFS4ERR_WRONGSEC || status == -EACCES)
+				continue;
+			break;
+		}
 	}
 
 	/*
@@ -2919,9 +2932,6 @@ int nfs4_proc_get_rootfh(struct nfs_server *server, struct nfs_fh *fhandle,
 		status = nfs4_lookup_root(server, fhandle, info);
 		if (status != -NFS4ERR_WRONGSEC)
 			break;
-		/* Did user force a 'sec=' mount option? */
-		if (server->auth_info.flavor_len > 0)
-			break;
 	default:
 		status = nfs4_do_find_root_sec(server, fhandle, info);
 	}
@@ -3179,9 +3189,6 @@ static int nfs4_proc_lookup_common(struct rpc_clnt **clnt, struct inode *dir,
 			err = -EPERM;
 			if (client != *clnt)
 				goto out;
-			/* No security negotiation if the user specified 'sec=' */
-			if (NFS_SERVER(dir)->auth_info.flavor_len > 0)
-				goto out;
 			client = nfs4_create_sec_client(client, dir, name);
 			if (IS_ERR(client))
 				return PTR_ERR(client);
@@ -7942,6 +7949,9 @@ nfs41_find_root_sec(struct nfs_server *server, struct nfs_fh *fhandle,
 			break;
 		}
 
+		if (!nfs_auth_info_match(&server->auth_info, flavor))
+			flavor = RPC_AUTH_MAXFLAVOR;
+
 		if (flavor != RPC_AUTH_MAXFLAVOR) {
 			err = nfs4_lookup_root_sec(server, fhandle,
 						   info, flavor);
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 3a4f8bf5e5a5..317d6fc2160e 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -497,7 +497,8 @@ static const char *nfs_pseudoflavour_to_name(rpc_authflavor_t flavour)
 	static const struct {
 		rpc_authflavor_t flavour;
 		const char *str;
-	} sec_flavours[] = {
+	} sec_flavours[NFS_AUTH_INFO_MAX_FLAVORS] = {
+		/* update NFS_AUTH_INFO_MAX_FLAVORS when this list changes! */
 		{ RPC_AUTH_NULL, "null" },
 		{ RPC_AUTH_UNIX, "sys" },
 		{ RPC_AUTH_GSS_KRB5, "krb5" },
@@ -1018,6 +1019,52 @@ static void nfs_set_mount_transport_protocol(struct nfs_parsed_mount_data *mnt)
 	}
 }
 
+/*
+ * Add 'flavor' to 'auth_info' if not already present.
+ * Returns true if 'flavor' ends up in the list, false otherwise
+ */
+static bool nfs_auth_info_add(struct nfs_auth_info *auth_info,
+			      rpc_authflavor_t flavor)
+{
+	unsigned int i;
+	unsigned int max_flavor_len = (sizeof(auth_info->flavors) /
+				       sizeof(auth_info->flavors[0]));
+
+	/* make sure this flavor isn't already in the list */
+	for (i = 0; i < auth_info->flavor_len; i++) {
+		if (flavor == auth_info->flavors[i])
+			return true;
+	}
+
+	if (auth_info->flavor_len + 1 >= max_flavor_len) {
+		dfprintk(MOUNT, "NFS: too many sec= flavors\n");
+		return false;
+	}
+
+	auth_info->flavors[auth_info->flavor_len++] = flavor;
+	return true;
+}
+
+/*
+ * Return true if 'match' is in auth_info or auth_info is empty.
+ * Return false otherwise.
+ */
+bool nfs_auth_info_match(const struct nfs_auth_info *auth_info,
+			 rpc_authflavor_t match)
+{
+	int i;
+
+	if (!auth_info->flavor_len)
+		return true;
+
+	for (i = 0; i < auth_info->flavor_len; i++) {
+		if (auth_info->flavors[i] == match)
+			return true;
+	}
+	return false;
+}
+EXPORT_SYMBOL_GPL(nfs_auth_info_match);
+
 /*
  * Parse the value of the 'sec=' option.
  */
@@ -1026,49 +1073,55 @@ static int nfs_parse_security_flavors(char *value,
 {
 	substring_t args[MAX_OPT_ARGS];
 	rpc_authflavor_t pseudoflavor;
+	char *p;
 
 	dfprintk(MOUNT, "NFS: parsing sec=%s option\n", value);
 
-	switch (match_token(value, nfs_secflavor_tokens, args)) {
-	case Opt_sec_none:
-		pseudoflavor = RPC_AUTH_NULL;
-		break;
-	case Opt_sec_sys:
-		pseudoflavor = RPC_AUTH_UNIX;
-		break;
-	case Opt_sec_krb5:
-		pseudoflavor = RPC_AUTH_GSS_KRB5;
-		break;
-	case Opt_sec_krb5i:
-		pseudoflavor = RPC_AUTH_GSS_KRB5I;
-		break;
-	case Opt_sec_krb5p:
-		pseudoflavor = RPC_AUTH_GSS_KRB5P;
-		break;
-	case Opt_sec_lkey:
-		pseudoflavor = RPC_AUTH_GSS_LKEY;
-		break;
-	case Opt_sec_lkeyi:
-		pseudoflavor = RPC_AUTH_GSS_LKEYI;
-		break;
-	case Opt_sec_lkeyp:
-		pseudoflavor = RPC_AUTH_GSS_LKEYP;
-		break;
-	case Opt_sec_spkm:
-		pseudoflavor = RPC_AUTH_GSS_SPKM;
-		break;
-	case Opt_sec_spkmi:
-		pseudoflavor = RPC_AUTH_GSS_SPKMI;
-		break;
-	case Opt_sec_spkmp:
-		pseudoflavor = RPC_AUTH_GSS_SPKMP;
-		break;
-	default:
-		return 0;
+	while ((p = strsep(&value, ":")) != NULL) {
+		switch (match_token(p, nfs_secflavor_tokens, args)) {
+		case Opt_sec_none:
+			pseudoflavor = RPC_AUTH_NULL;
+			break;
+		case Opt_sec_sys:
+			pseudoflavor = RPC_AUTH_UNIX;
+			break;
+		case Opt_sec_krb5:
+			pseudoflavor = RPC_AUTH_GSS_KRB5;
+			break;
+		case Opt_sec_krb5i:
+			pseudoflavor = RPC_AUTH_GSS_KRB5I;
+			break;
+		case Opt_sec_krb5p:
+			pseudoflavor = RPC_AUTH_GSS_KRB5P;
+			break;
+		case Opt_sec_lkey:
+			pseudoflavor = RPC_AUTH_GSS_LKEY;
+			break;
+		case Opt_sec_lkeyi:
+			pseudoflavor = RPC_AUTH_GSS_LKEYI;
+			break;
+		case Opt_sec_lkeyp:
+			pseudoflavor = RPC_AUTH_GSS_LKEYP;
+			break;
+		case Opt_sec_spkm:
+			pseudoflavor = RPC_AUTH_GSS_SPKM;
+			break;
+		case Opt_sec_spkmi:
+			pseudoflavor = RPC_AUTH_GSS_SPKMI;
+			break;
+		case Opt_sec_spkmp:
+			pseudoflavor = RPC_AUTH_GSS_SPKMP;
+			break;
+		default:
+			dfprintk(MOUNT,
+				 "NFS: sec= option '%s' not recognized\n", p);
+			return 0;
+		}
+
+		if (!nfs_auth_info_add(&mnt->auth_info, pseudoflavor))
+			return 0;
 	}
 
-	mnt->auth_info.flavors[0] = pseudoflavor;
-	mnt->auth_info.flavor_len = 1;
 	return 1;
 }
 
@@ -1615,12 +1668,14 @@ out_security_failure:
 }
 
 /*
- * Ensure that the specified authtype in args->auth_info is supported by
- * the server. Returns 0 if it's ok, and -EACCES if not.
+ * Ensure that a specified authtype in args->auth_info is supported by
+ * the server. Returns 0 and sets args->selected_flavor if it's ok, and
+ * -EACCES if not.
  */
-static int nfs_verify_authflavor(struct nfs_parsed_mount_data *args,
+static int nfs_verify_authflavors(struct nfs_parsed_mount_data *args,
 			rpc_authflavor_t *server_authlist, unsigned int count)
 {
+	rpc_authflavor_t flavor = RPC_AUTH_MAXFLAVOR;
 	unsigned int i;
 
 	/*
@@ -1632,17 +1687,19 @@ static int nfs_verify_authflavor(struct nfs_parsed_mount_data *args,
 	 * can be used.
 	 */
 	for (i = 0; i < count; i++) {
-		if (args->auth_info.flavors[0] == server_authlist[i] ||
-		    server_authlist[i] == RPC_AUTH_NULL)
+		flavor = server_authlist[i];
+
+		if (nfs_auth_info_match(&args->auth_info, flavor) ||
+		    flavor == RPC_AUTH_NULL)
 			goto out;
 	}
 
-	dfprintk(MOUNT, "NFS: auth flavor %u not supported by server\n",
-		args->auth_info.flavors[0]);
+	dfprintk(MOUNT,
+		 "NFS: specified auth flavors not supported by server\n");
 	return -EACCES;
 
 out:
-	args->selected_flavor = args->auth_info.flavors[0];
+	args->selected_flavor = flavor;
 	dfprintk(MOUNT, "NFS: using auth flavor %u\n", args->selected_flavor);
 	return 0;
 }
@@ -1732,7 +1789,7 @@ static struct nfs_server *nfs_try_mount_request(struct nfs_mount_info *mount_inf
 	 * whether the server supports it, and then just try to use it if so.
 	 */
 	if (args->auth_info.flavor_len > 0) {
-		status = nfs_verify_authflavor(args, authlist, authlist_len);
+		status = nfs_verify_authflavors(args, authlist, authlist_len);
 		dfprintk(MOUNT, "NFS: using auth flavor %u\n",
 			 args->selected_flavor);
 		if (status)
@@ -2102,9 +2159,6 @@ static int nfs_validate_text_mount_data(void *options,
 
 	nfs_set_port(sap, &args->nfs_server.port, port);
 
-	if (args->auth_info.flavor_len > 1)
-		goto out_bad_auth;
-
 	return nfs_parse_devname(dev_name,
 				   &args->nfs_server.hostname,
 				   max_namelen,
@@ -2124,10 +2178,6 @@ out_invalid_transport_udp:
 out_no_address:
 	dfprintk(MOUNT, "NFS: mount program didn't pass remote address\n");
 	return -EINVAL;
-
-out_bad_auth:
-	dfprintk(MOUNT, "NFS: Too many RPC auth flavours specified\n");
-	return -EINVAL;
 }
 
 static int
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 658104acf13b..3ccfcecf8999 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -592,9 +592,10 @@ struct nfs_renameres {
 };
 
 /* parsed sec= options */
+#define NFS_AUTH_INFO_MAX_FLAVORS 12 /* see fs/nfs/super.c */
 struct nfs_auth_info {
 	unsigned int            flavor_len;
-	rpc_authflavor_t        flavors[1];
+	rpc_authflavor_t        flavors[NFS_AUTH_INFO_MAX_FLAVORS];
 };
 
 /*
-- 
cgit 


From 9857df815f17417be116f800636f460e247afb5a Mon Sep 17 00:00:00 2001
From: Benny Halevy <bhalevy@primarydata.com>
Date: Mon, 14 Oct 2013 13:44:52 +0300
Subject: nfsd: nfs4_free_stid

Make it symmetric to nfs4_alloc_stid.

Signed-off-by: Benny Halevy <bhalevy@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/nfs4state.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index a601fd49f997..9cb1b17014f5 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -402,11 +402,16 @@ static void remove_stid(struct nfs4_stid *s)
 	idr_remove(stateids, s->sc_stateid.si_opaque.so_id);
 }
 
+static void nfs4_free_stid(struct kmem_cache *slab, struct nfs4_stid *s)
+{
+	kmem_cache_free(slab, s);
+}
+
 void
 nfs4_put_delegation(struct nfs4_delegation *dp)
 {
 	if (atomic_dec_and_test(&dp->dl_count)) {
-		kmem_cache_free(deleg_slab, dp);
+		nfs4_free_stid(deleg_slab, &dp->dl_stid);
 		num_delegations--;
 	}
 }
@@ -610,7 +615,7 @@ static void close_generic_stateid(struct nfs4_ol_stateid *stp)
 static void free_generic_stateid(struct nfs4_ol_stateid *stp)
 {
 	remove_stid(&stp->st_stid);
-	kmem_cache_free(stateid_slab, stp);
+	nfs4_free_stid(stateid_slab, &stp->st_stid);
 }
 
 static void release_lock_stateid(struct nfs4_ol_stateid *stp)
-- 
cgit 


From a01779f89fc8a2225cb82dca0fc7b8451851cb7b Mon Sep 17 00:00:00 2001
From: Josh Cartwright <joshc@codeaurora.org>
Date: Mon, 28 Oct 2013 13:12:35 -0500
Subject: regmap: add SPMI support

Add basic support for the System Power Management Interface (SPMI) bus.
This is a simple implementation which only implements register accesses
via the Extended Register Read/Write Long commands.

Signed-off-by: Josh Cartwright <joshc@codeaurora.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/base/regmap/Kconfig       |  5 ++-
 drivers/base/regmap/Makefile      |  1 +
 drivers/base/regmap/regmap-spmi.c | 90 +++++++++++++++++++++++++++++++++++++++
 include/linux/regmap.h            |  5 +++
 4 files changed, 100 insertions(+), 1 deletion(-)
 create mode 100644 drivers/base/regmap/regmap-spmi.c

diff --git a/drivers/base/regmap/Kconfig b/drivers/base/regmap/Kconfig
index f0d30543fcce..4251570610c9 100644
--- a/drivers/base/regmap/Kconfig
+++ b/drivers/base/regmap/Kconfig
@@ -3,7 +3,7 @@
 # subsystems should select the appropriate symbols.
 
 config REGMAP
-	default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_MMIO || REGMAP_IRQ)
+	default y if (REGMAP_I2C || REGMAP_SPI || REGMAP_SPMI || REGMAP_MMIO || REGMAP_IRQ)
 	select LZO_COMPRESS
 	select LZO_DECOMPRESS
 	select IRQ_DOMAIN if REGMAP_IRQ
@@ -15,6 +15,9 @@ config REGMAP_I2C
 config REGMAP_SPI
 	tristate
 
+config REGMAP_SPMI
+	tristate
+
 config REGMAP_MMIO
 	tristate
 
diff --git a/drivers/base/regmap/Makefile b/drivers/base/regmap/Makefile
index cf129980abd0..a7c670b4123a 100644
--- a/drivers/base/regmap/Makefile
+++ b/drivers/base/regmap/Makefile
@@ -3,5 +3,6 @@ obj-$(CONFIG_REGMAP) += regcache-rbtree.o regcache-lzo.o regcache-flat.o
 obj-$(CONFIG_DEBUG_FS) += regmap-debugfs.o
 obj-$(CONFIG_REGMAP_I2C) += regmap-i2c.o
 obj-$(CONFIG_REGMAP_SPI) += regmap-spi.o
+obj-$(CONFIG_REGMAP_SPMI) += regmap-spmi.o
 obj-$(CONFIG_REGMAP_MMIO) += regmap-mmio.o
 obj-$(CONFIG_REGMAP_IRQ) += regmap-irq.o
diff --git a/drivers/base/regmap/regmap-spmi.c b/drivers/base/regmap/regmap-spmi.c
new file mode 100644
index 000000000000..ac2391013db1
--- /dev/null
+++ b/drivers/base/regmap/regmap-spmi.c
@@ -0,0 +1,90 @@
+/*
+ * Register map access API - SPMI support
+ *
+ * Copyright (c) 2012-2013, The Linux Foundation. All rights reserved.
+ *
+ * Based on regmap-i2c.c:
+ * Copyright 2011 Wolfson Microelectronics plc
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+#include <linux/regmap.h>
+#include <linux/spmi.h>
+#include <linux/module.h>
+#include <linux/init.h>
+
+static int regmap_spmi_read(void *context,
+			    const void *reg, size_t reg_size,
+			    void *val, size_t val_size)
+{
+	BUG_ON(reg_size != 2);
+	return spmi_ext_register_readl(context, *(u16 *)reg,
+				       val, val_size);
+}
+
+static int regmap_spmi_gather_write(void *context,
+				    const void *reg, size_t reg_size,
+				    const void *val, size_t val_size)
+{
+	BUG_ON(reg_size != 2);
+	return spmi_ext_register_writel(context, *(u16 *)reg, val, val_size);
+}
+
+static int regmap_spmi_write(void *context, const void *data,
+			     size_t count)
+{
+	BUG_ON(count < 2);
+	return regmap_spmi_gather_write(context, data, 2, data + 2, count - 2);
+}
+
+static struct regmap_bus regmap_spmi = {
+	.read				= regmap_spmi_read,
+	.write				= regmap_spmi_write,
+	.gather_write			= regmap_spmi_gather_write,
+	.reg_format_endian_default	= REGMAP_ENDIAN_NATIVE,
+	.val_format_endian_default	= REGMAP_ENDIAN_NATIVE,
+};
+
+/**
+ * regmap_init_spmi(): Initialize register map
+ *
+ * @sdev: Device that will be interacted with
+ * @config: Configuration for register map
+ *
+ * The return value will be an ERR_PTR() on error or a valid pointer to
+ * a struct regmap.
+ */
+struct regmap *regmap_init_spmi(struct spmi_device *sdev,
+				const struct regmap_config *config)
+{
+	return regmap_init(&sdev->dev, &regmap_spmi, sdev, config);
+}
+EXPORT_SYMBOL_GPL(regmap_init_spmi);
+
+/**
+ * devm_regmap_init_spmi(): Initialise managed register map
+ *
+ * @sdev: Device that will be interacted with
+ * @config: Configuration for register map
+ *
+ * The return value will be an ERR_PTR() on error or a valid pointer
+ * to a struct regmap.  The regmap will be automatically freed by the
+ * device management code.
+ */
+struct regmap *devm_regmap_init_spmi(struct spmi_device *sdev,
+				     const struct regmap_config *config)
+{
+	return devm_regmap_init(&sdev->dev, &regmap_spmi, sdev, config);
+}
+EXPORT_SYMBOL_GPL(devm_regmap_init_spmi);
+
+MODULE_LICENSE("GPL");
diff --git a/include/linux/regmap.h b/include/linux/regmap.h
index a10380bfbeac..3f5abc86b6b5 100644
--- a/include/linux/regmap.h
+++ b/include/linux/regmap.h
@@ -23,6 +23,7 @@ struct device;
 struct i2c_client;
 struct irq_domain;
 struct spi_device;
+struct spmi_device;
 struct regmap;
 struct regmap_range_cfg;
 struct regmap_field;
@@ -318,6 +319,8 @@ struct regmap *regmap_init_i2c(struct i2c_client *i2c,
 			       const struct regmap_config *config);
 struct regmap *regmap_init_spi(struct spi_device *dev,
 			       const struct regmap_config *config);
+struct regmap *regmap_init_spmi(struct spmi_device *dev,
+			       const struct regmap_config *config);
 struct regmap *regmap_init_mmio_clk(struct device *dev, const char *clk_id,
 				    void __iomem *regs,
 				    const struct regmap_config *config);
@@ -330,6 +333,8 @@ struct regmap *devm_regmap_init_i2c(struct i2c_client *i2c,
 				    const struct regmap_config *config);
 struct regmap *devm_regmap_init_spi(struct spi_device *dev,
 				    const struct regmap_config *config);
+struct regmap *devm_regmap_init_spmi(struct spmi_device *dev,
+				     const struct regmap_config *config);
 struct regmap *devm_regmap_init_mmio_clk(struct device *dev, const char *clk_id,
 					 void __iomem *regs,
 					 const struct regmap_config *config);
-- 
cgit 


From 5d7dab83e3e55e81a88c406da71afde0ebaa6ad8 Mon Sep 17 00:00:00 2001
From: Benny Halevy <bhalevy@primarydata.com>
Date: Tue, 15 Oct 2013 09:57:55 +0300
Subject: nfsd: nfs4_open_delegation needs to remove_stid rather than
 unhash_stid

In the out_free: path, the newly allocated stid must be removed rather
than unhashed so it can never be found.

Signed-off-by: Benny Halevy <bhalevy@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/nfs4state.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 9cb1b17014f5..3feb38e818ab 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3159,7 +3159,7 @@ nfs4_open_delegation(struct net *net, struct svc_fh *fh,
 	open->op_delegate_type = NFS4_OPEN_DELEGATE_READ;
 	return;
 out_free:
-	unhash_stid(&dp->dl_stid);
+	remove_stid(&dp->dl_stid);
 	nfs4_put_delegation(dp);
 out_no_deleg:
 	open->op_delegate_type = NFS4_OPEN_DELEGATE_NONE;
-- 
cgit 


From 7ebe40f20372688a627ad6c754bc0d1c05df58a9 Mon Sep 17 00:00:00 2001
From: Benny Halevy <bhalevy@primarydata.com>
Date: Tue, 15 Oct 2013 09:58:00 +0300
Subject: nfsd: remove_stid can be incorporated into nfs4_put_delegation

All calls to nfs4_put_delegation are preceded with remove_stid.

Signed-off-by: Benny Halevy <bhalevy@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/nfs4state.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 3feb38e818ab..77dfc5a6a011 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -410,6 +410,7 @@ static void nfs4_free_stid(struct kmem_cache *slab, struct nfs4_stid *s)
 void
 nfs4_put_delegation(struct nfs4_delegation *dp)
 {
+	remove_stid(&dp->dl_stid);
 	if (atomic_dec_and_test(&dp->dl_count)) {
 		nfs4_free_stid(deleg_slab, &dp->dl_stid);
 		num_delegations--;
@@ -450,14 +451,12 @@ unhash_delegation(struct nfs4_delegation *dp)
 static void destroy_revoked_delegation(struct nfs4_delegation *dp)
 {
 	list_del_init(&dp->dl_recall_lru);
-	remove_stid(&dp->dl_stid);
 	nfs4_put_delegation(dp);
 }
 
 static void destroy_delegation(struct nfs4_delegation *dp)
 {
 	unhash_delegation(dp);
-	remove_stid(&dp->dl_stid);
 	nfs4_put_delegation(dp);
 }
 
@@ -3159,7 +3158,6 @@ nfs4_open_delegation(struct net *net, struct svc_fh *fh,
 	open->op_delegate_type = NFS4_OPEN_DELEGATE_READ;
 	return;
 out_free:
-	remove_stid(&dp->dl_stid);
 	nfs4_put_delegation(dp);
 out_no_deleg:
 	open->op_delegate_type = NFS4_OPEN_DELEGATE_NONE;
-- 
cgit 


From 0ffae27f0f29e877ce52e4794a99926167792378 Mon Sep 17 00:00:00 2001
From: Fathi Boudra <fathi.boudra@linaro.org>
Date: Sat, 31 Aug 2013 13:57:31 +0100
Subject: ARM: vexpress: Make defconfig work again

This patch updates the Versatile Express defconfig to a level
which makes it possible to run a defconfig-ed kernel work
on the board and in QEMU with modern userspace. It does:

- update cmdline to contain "console=ttyAMA0" only
- enable devtmpfs filesystem
- enable voltage regulator support
- enable ext4 filesystem
- disable low level debug and early printk

Signed-off-by: Fathi Boudra <fathi.boudra@linaro.org>
[PM: removed DEBUG_LL - it doesn't work on qemu]
[PM: reworded the commit message]
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/configs/vexpress_defconfig | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/arm/configs/vexpress_defconfig b/arch/arm/configs/vexpress_defconfig
index f2de51f0bd18..6d20bc1cb844 100644
--- a/arch/arm/configs/vexpress_defconfig
+++ b/arch/arm/configs/vexpress_defconfig
@@ -30,7 +30,7 @@ CONFIG_HOTPLUG_CPU=y
 CONFIG_AEABI=y
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
-CONFIG_CMDLINE="root=/dev/nfs nfsroot=10.1.69.3:/work/nfsroot ip=dhcp console=ttyAMA0 mem=128M"
+CONFIG_CMDLINE="console=ttyAMA0"
 CONFIG_VFP=y
 CONFIG_NEON=y
 # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
@@ -45,6 +45,7 @@ CONFIG_IP_PNP_BOOTP=y
 # CONFIG_IPV6 is not set
 # CONFIG_WIRELESS is not set
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
 CONFIG_MTD=y
 CONFIG_MTD_CONCAT=y
 CONFIG_MTD_PARTITIONS=y
@@ -75,6 +76,7 @@ CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
 CONFIG_LEGACY_PTY_COUNT=16
 # CONFIG_HW_RANDOM is not set
 # CONFIG_HWMON is not set
+CONFIG_REGULATOR=y
 CONFIG_FB=y
 CONFIG_FB_ARMCLCD=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
@@ -115,6 +117,7 @@ CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
 # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
 # CONFIG_EXT3_FS_XATTR is not set
+CONFIG_EXT4_FS=y
 CONFIG_VFAT_FS=y
 CONFIG_TMPFS=y
 CONFIG_JFFS2_FS=y
@@ -134,7 +137,5 @@ CONFIG_DEBUG_INFO=y
 # CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_DEBUG_USER=y
 CONFIG_DEBUG_ERRORS=y
-CONFIG_DEBUG_LL=y
-CONFIG_EARLY_PRINTK=y
 # CONFIG_CRYPTO_ANSI_CPRNG is not set
 # CONFIG_CRYPTO_HW is not set
-- 
cgit 


From 81d6e719d1f8e1aa318f6d899f496fdf89e2f046 Mon Sep 17 00:00:00 2001
From: Pawel Moll <pawel.moll@arm.com>
Date: Mon, 21 Oct 2013 11:00:01 +0100
Subject: ARM: vexpress: Enable platform-specific options in defconfig

This patch enables all drivers and alike to make defconfig-ed
kernels use Versatile Express specific features, like power
management services (PSCI, MCPM with drivers for DCCSB on
Fast Models and SPC on TC2), CMA for frame buffer allocation,
all virtio device drivers (for QEMU, KVM tools and Fast Models),
MTD physmap drivers with squashfs and UBIFS for flash,
I2C master, regulator and hwmon drivers and LEDs support with
most useful triggers. The maximum amount of CPUs has been
increased to 8 to facilitate big.Little systems.

Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/configs/vexpress_defconfig | 66 ++++++++++++++++++++++++-------------
 1 file changed, 43 insertions(+), 23 deletions(-)

diff --git a/arch/arm/configs/vexpress_defconfig b/arch/arm/configs/vexpress_defconfig
index 6d20bc1cb844..f489fdaa19b8 100644
--- a/arch/arm/configs/vexpress_defconfig
+++ b/arch/arm/configs/vexpress_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_SYSVIPC=y
 CONFIG_IKCONFIG=y
@@ -8,11 +7,9 @@ CONFIG_CGROUPS=y
 CONFIG_CPUSETS=y
 # CONFIG_UTS_NS is not set
 # CONFIG_IPC_NS is not set
-# CONFIG_USER_NS is not set
 # CONFIG_PID_NS is not set
 # CONFIG_NET_NS is not set
 CONFIG_BLK_DEV_INITRD=y
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
 CONFIG_PROFILING=y
 CONFIG_OPROFILE=y
 CONFIG_MODULES=y
@@ -23,14 +20,22 @@ CONFIG_MODULE_UNLOAD=y
 # CONFIG_IOSCHED_CFQ is not set
 CONFIG_ARCH_VEXPRESS=y
 CONFIG_ARCH_VEXPRESS_CA9X4=y
+CONFIG_ARCH_VEXPRESS_DCSCB=y
+CONFIG_ARCH_VEXPRESS_TC2_PM=y
 # CONFIG_SWP_EMULATE is not set
 CONFIG_SMP=y
+CONFIG_HAVE_ARM_ARCH_TIMER=y
+CONFIG_MCPM=y
 CONFIG_VMSPLIT_2G=y
-CONFIG_HOTPLUG_CPU=y
+CONFIG_NR_CPUS=8
+CONFIG_ARM_PSCI=y
 CONFIG_AEABI=y
+CONFIG_CMA=y
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
 CONFIG_CMDLINE="console=ttyAMA0"
+CONFIG_CPU_IDLE=y
+CONFIG_CPU_IDLE_MULTIPLE_DRIVERS=y
 CONFIG_VFP=y
 CONFIG_NEON=y
 # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
@@ -44,39 +49,46 @@ CONFIG_IP_PNP_BOOTP=y
 # CONFIG_INET_LRO is not set
 # CONFIG_IPV6 is not set
 # CONFIG_WIRELESS is not set
+CONFIG_NET_9P=y
+CONFIG_NET_9P_VIRTIO=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
 CONFIG_MTD=y
-CONFIG_MTD_CONCAT=y
-CONFIG_MTD_PARTITIONS=y
 CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_CFI=y
 CONFIG_MTD_CFI_INTELEXT=y
 CONFIG_MTD_CFI_AMDSTD=y
-CONFIG_MTD_ARM_INTEGRATOR=y
-CONFIG_MISC_DEVICES=y
+CONFIG_MTD_PHYSMAP=y
+CONFIG_MTD_PHYSMAP_OF=y
+CONFIG_MTD_PLATRAM=y
+CONFIG_MTD_UBI=y
+CONFIG_PROC_DEVICETREE=y
+CONFIG_VIRTIO_BLK=y
 # CONFIG_SCSI_PROC_FS is not set
 CONFIG_BLK_DEV_SD=y
-# CONFIG_SCSI_LOWLEVEL is not set
+CONFIG_SCSI_VIRTIO=y
 CONFIG_ATA=y
 # CONFIG_SATA_PMP is not set
 CONFIG_NETDEVICES=y
-CONFIG_NET_ETHERNET=y
+CONFIG_VIRTIO_NET=y
+CONFIG_SMC91X=y
 CONFIG_SMSC911X=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
 # CONFIG_WLAN is not set
 CONFIG_INPUT_EVDEV=y
 # CONFIG_SERIO_SERPORT is not set
 CONFIG_SERIO_AMBAKMI=y
+CONFIG_LEGACY_PTY_COUNT=16
 CONFIG_SERIAL_AMBA_PL011=y
 CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
-CONFIG_LEGACY_PTY_COUNT=16
-# CONFIG_HW_RANDOM is not set
-# CONFIG_HWMON is not set
+CONFIG_VIRTIO_CONSOLE=y
+CONFIG_HW_RANDOM=y
+CONFIG_HW_RANDOM_VIRTIO=y
+CONFIG_I2C=y
+CONFIG_I2C_VERSATILE=y
+CONFIG_SENSORS_VEXPRESS=y
 CONFIG_REGULATOR=y
+CONFIG_REGULATOR_VEXPRESS=y
 CONFIG_FB=y
 CONFIG_FB_ARMCLCD=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
@@ -105,14 +117,22 @@ CONFIG_HID_THRUSTMASTER=y
 CONFIG_HID_ZEROPLUS=y
 CONFIG_USB=y
 CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
-# CONFIG_USB_DEVICE_CLASS is not set
 CONFIG_USB_MON=y
 CONFIG_USB_ISP1760_HCD=y
 CONFIG_USB_STORAGE=y
 CONFIG_MMC=y
 CONFIG_MMC_ARMMMCI=y
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_GPIO=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_LEDS_TRIGGER_CPU=y
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_PL031=y
+CONFIG_VIRTIO_BALLOON=y
+CONFIG_VIRTIO_MMIO=y
+CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES=y
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
 # CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
@@ -121,21 +141,21 @@ CONFIG_EXT4_FS=y
 CONFIG_VFAT_FS=y
 CONFIG_TMPFS=y
 CONFIG_JFFS2_FS=y
+CONFIG_UBIFS_FS=y
 CONFIG_CRAMFS=y
+CONFIG_SQUASHFS=y
+CONFIG_SQUASHFS_LZO=y
 CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
 CONFIG_ROOT_NFS=y
-# CONFIG_RPCSEC_GSS_KRB5 is not set
+CONFIG_9P_FS=y
 CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_ISO8859_1=y
-CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_INFO=y
 CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_KERNEL=y
 CONFIG_DETECT_HUNG_TASK=y
 # CONFIG_SCHED_DEBUG is not set
-CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
 CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_ERRORS=y
 # CONFIG_CRYPTO_ANSI_CPRNG is not set
 # CONFIG_CRYPTO_HW is not set
-- 
cgit 


From 34751b9d04a221da2a74b27ba439f01c0ae30069 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Mon, 28 Oct 2013 16:42:44 -0400
Subject: SUNRPC: Add correct rcu_dereference annotation in
 rpc_clnt_set_transport

rpc_clnt_set_transport should use rcu_derefence_protected(), as it is
only safe to be called with the rpc_clnt::cl_lock held.

Cc: Chuck Lever <Chuck.Lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 net/sunrpc/clnt.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index f167d9c8d7dd..759b78b056a7 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -272,7 +272,8 @@ static struct rpc_xprt *rpc_clnt_set_transport(struct rpc_clnt *clnt,
 	struct rpc_xprt *old;
 
 	spin_lock(&clnt->cl_lock);
-	old = clnt->cl_xprt;
+	old = rcu_dereference_protected(clnt->cl_xprt,
+			lockdep_is_held(&clnt->cl_lock));
 
 	if (!xprt_bound(xprt))
 		clnt->cl_autobind = 1;
-- 
cgit 


From 41f7ba7a9ba711f6e3f0b4ef73f9bb49f17e2f75 Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Sun, 27 Oct 2013 23:36:20 -0700
Subject: staging: sb105x: Remove unneeded semicolon in sb_pci_mp.c

Remove unneeded semicolon in sb_pci_mp.c to meet kernel
coding style.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/sb105x/sb_pci_mp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/sb105x/sb_pci_mp.c b/drivers/staging/sb105x/sb_pci_mp.c
index bc53b4ef1e61..11c047e3a901 100644
--- a/drivers/staging/sb105x/sb_pci_mp.c
+++ b/drivers/staging/sb105x/sb_pci_mp.c
@@ -1216,7 +1216,7 @@ static int mp_ioctl(struct tty_struct *tty, unsigned int cmd, unsigned long arg)
 				return (inb(mp_devs[arg].option_reg_addr+MP_OPTR_IIR0+(state->port->line/8)));
 			}
 		case TIOCGGETPORTTYPE:
-			ret = get_device_type(arg);;
+			ret = get_device_type(arg);
 			return ret;
 		case TIOCSMULTIECHO: /* set to multi-drop mode(RS422) or echo mode(RS485)*/
 			outb( ( inb(info->interface_config_addr) & ~0x03 ) | 0x01 ,  
-- 
cgit 


From d27a71a286190d1e1dbd29002d594a4b1dd0300a Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Tue, 22 Oct 2013 02:37:12 +0300
Subject: staging: rtl8187se: (foo*) should be (foo *)

Fix checkpatch error:

ERROR: "(foo*)" should be "(foo *)"

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
index d9601839adac..5f98365c2a7d 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
@@ -245,7 +245,7 @@ static struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size,
 	struct ieee80211_txb *txb;
 	int i;
 	txb = kmalloc(
-		sizeof(struct ieee80211_txb) + (sizeof(u8*) * nr_frags),
+		sizeof(struct ieee80211_txb) + (sizeof(u8 *) * nr_frags),
 		gfp_mask);
 	if (!txb)
 		return NULL;
@@ -275,7 +275,7 @@ static struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size,
 static int
 ieee80211_classify(struct sk_buff *skb, struct ieee80211_network *network)
 {
-  struct ether_header *eh = (struct ether_header*)skb->data;
+  struct ether_header *eh = (struct ether_header *)skb->data;
   unsigned int wme_UP = 0;
 
   if(!network->QoS_Enable) {
@@ -284,7 +284,7 @@ ieee80211_classify(struct sk_buff *skb, struct ieee80211_network *network)
   }
 
   if(eh->ether_type == __constant_htons(ETHERTYPE_IP)) {
-    const struct iphdr *ih = (struct iphdr*)(skb->data + \
+    const struct iphdr *ih = (struct iphdr *)(skb->data + \
 		    sizeof(struct ether_header));
     wme_UP = (ih->tos >> 5)&0x07;
   } else if (vlan_tx_tag_present(skb)) {//vtag packet
-- 
cgit 


From d31d4785e0983bcd0502c6d7d9c507da6a29b7b9 Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Tue, 22 Oct 2013 02:37:13 +0300
Subject: staging: rtl8187se: use C89 comment style instead of C99-style

This patch fixes the comments in file ieee80211/ieee80211_tx.c from
driver rtl8187se, as reported by checkpatch. The C89 comments that
contain code
are deleted.

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c | 62 +++++++++++-----------
 1 file changed, 32 insertions(+), 30 deletions(-)

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
index 5f98365c2a7d..94e355940522 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
@@ -32,7 +32,6 @@
 ******************************************************************************/
 
 #include <linux/compiler.h>
-//#include <linux/config.h>
 #include <linux/errno.h>
 #include <linux/if_arp.h>
 #include <linux/in6.h>
@@ -207,7 +206,7 @@ int ieee80211_encrypt_fragment(
 	/* To encrypt, frame format is:
 	 * IV (4 bytes), clear payload (including SNAP), ICV (4 bytes) */
 
-	// PR: FIXME: Copied from hostap. Check fragmentation/MSDU/MPDU encryption.
+	/* PR: FIXME: Copied from hostap. Check fragmentation/MSDU/MPDU encryption. */
 	/* Host-based IEEE 802.11 fragmentation for TX is not yet supported, so
 	 * call both MSDU and MPDU encryption functions from here. */
 	atomic_inc(&crypt->refcnt);
@@ -270,8 +269,10 @@ static struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size,
 	return txb;
 }
 
-// Classify the to-be send data packet
-// Need to acquire the sent queue index.
+/*
+ * Classify the to-be send data packet
+ * Need to acquire the sent queue index.
+ */
 static int
 ieee80211_classify(struct sk_buff *skb, struct ieee80211_network *network)
 {
@@ -287,7 +288,7 @@ ieee80211_classify(struct sk_buff *skb, struct ieee80211_network *network)
     const struct iphdr *ih = (struct iphdr *)(skb->data + \
 		    sizeof(struct ether_header));
     wme_UP = (ih->tos >> 5)&0x07;
-  } else if (vlan_tx_tag_present(skb)) {//vtag packet
+  } else if (vlan_tx_tag_present(skb)) {/* vtag packet */
 #ifndef VLAN_PRI_SHIFT
 #define VLAN_PRI_SHIFT  13              /* Shift to find VLAN user priority */
 #define VLAN_PRI_MASK   7               /* Mask for user priority bits in VLAN */
@@ -295,7 +296,6 @@ ieee80211_classify(struct sk_buff *skb, struct ieee80211_network *network)
 	u32 tag = vlan_tx_tag_get(skb);
 	wme_UP = (tag >> VLAN_PRI_SHIFT) & VLAN_PRI_MASK;
   } else if(ETH_P_PAE ==  ntohs(((struct ethhdr *)skb->data)->h_proto)) {
-    //printk(KERN_WARNING "type = normal packet\n");
     wme_UP = 7;
   }
 
@@ -325,11 +325,12 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 
 	struct ieee80211_crypt_data* crypt;
 
-	//printk(KERN_WARNING "upper layer packet!\n");
 	spin_lock_irqsave(&ieee->lock, flags);
 
-	/* If there is no driver handler to take the TXB, don't bother
-	 * creating it... */
+	/*
+	 * If there is no driver handler to take the TXB, don't bother
+	 * creating it...
+	 */
 	if ((!ieee->hard_start_xmit && !(ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE))||
 	   ((!ieee->softmac_data_hard_start_xmit && (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)))) {
 		printk(KERN_WARNING "%s: No xmit handler.\n",
@@ -407,19 +408,19 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 			memcpy(&header.addr2, src, ETH_ALEN);
 			memcpy(&header.addr3, ieee->current_network.bssid, ETH_ALEN);
 		}
-	//	printk(KERN_WARNING "essid MAC address is %pM", &header.addr1);
 		header.frame_ctl = cpu_to_le16(fc);
-		//hdr_len = IEEE80211_3ADDR_LEN;
 
-		/* Determine fragmentation size based on destination (multicast
-		* and broadcast are not fragmented) */
+		/*
+		 * Determine fragmentation size based on destination (multicast
+		 * and broadcast are not fragmented)
+		 */
 		if (is_multicast_ether_addr(header.addr1)) {
 			frag_size = MAX_FRAG_THRESHOLD;
 			qos_ctl = QOS_CTL_NOTCONTAIN_ACK;
 		}
 		else {
-			//printk(KERN_WARNING "&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&frag_size = %d\n", frag_size);
-			frag_size = ieee->fts;//default:392
+			/* default:392 */
+			frag_size = ieee->fts;
 			qos_ctl = 0;
 		}
 
@@ -432,11 +433,12 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 			hdr_len = IEEE80211_3ADDR_LEN;
 		}
 
-		/* Determine amount of payload per fragment.  Regardless of if
-		* this stack is providing the full 802.11 header, one will
-		* eventually be affixed to this fragment -- so we must account for
-		* it when determining the amount of payload space. */
-		//bytes_per_frag = frag_size - (IEEE80211_3ADDR_LEN + (ieee->current_network->QoS_Enable ? 2:0));
+		/*
+		 * Determine amount of payload per fragment.  Regardless of if
+		 * this stack is providing the full 802.11 header, one will
+		 * eventually be affixed to this fragment -- so we must account
+		 * for it when determining the amount of payload space.
+		 */
 		bytes_per_frag = frag_size - hdr_len;
 		if (ieee->config &
 		(CFG_IEEE80211_COMPUTE_FCS | CFG_IEEE80211_RESERVE_FCS))
@@ -489,15 +491,14 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 				bytes = bytes_last_frag;
 			}
 			if(ieee->current_network.QoS_Enable) {
-			  // add 1 only indicate to corresponding seq number control 2006/7/12
+			  /*
+			   * add 1 only indicate to corresponding seq number 
+			   * control 2006/7/12
+			   */
 			  frag_hdr->seq_ctl = cpu_to_le16(ieee->seq_ctrl[UP2AC(skb->priority)+1]<<4 | i);
-			  //printk(KERN_WARNING "skb->priority = %d,", skb->priority);
-			  //printk(KERN_WARNING "type:%d: seq = %d\n",UP2AC(skb->priority),ieee->seq_ctrl[UP2AC(skb->priority)+1]);
 			} else {
 			  frag_hdr->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0]<<4 | i);
 			}
-			//frag_hdr->seq_ctl = cpu_to_le16(ieee->seq_ctrl<<4 | i);
-			//
 
 			/* Put a SNAP header on the first fragment */
 			if (i == 0) {
@@ -512,16 +513,18 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 			/* Advance the SKB... */
 			skb_pull(skb, bytes);
 
-			/* Encryption routine will move the header forward in order
-			* to insert the IV between the header and the payload */
+			/*
+			 * Encryption routine will move the header forward in
+			 * order to insert the IV between the header and the
+			 * payload
+			 */
 			if (encrypt)
 				ieee80211_encrypt_fragment(ieee, skb_frag, hdr_len);
 			if (ieee->config &
 			(CFG_IEEE80211_COMPUTE_FCS | CFG_IEEE80211_RESERVE_FCS))
 				skb_put(skb_frag, 4);
 		}
-		// Advance sequence number in data frame.
-		//printk(KERN_WARNING "QoS Enalbed? %s\n", ieee->current_network.QoS_Enable?"Y":"N");
+		/* Advance sequence number in data frame. */
 		if (ieee->current_network.QoS_Enable) {
 		  if (ieee->seq_ctrl[UP2AC(skb->priority) + 1] == 0xFFF)
 			ieee->seq_ctrl[UP2AC(skb->priority) + 1] = 0;
@@ -533,7 +536,6 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 		  else
 			ieee->seq_ctrl[0]++;
 		}
-		//---
 	}else{
 		if (unlikely(skb->len < sizeof(struct ieee80211_hdr_3addr))) {
 			printk(KERN_WARNING "%s: skb too small (%d).\n",
-- 
cgit 


From 3abd6f11cb685a1a8861bb7c54564786e2fa80df Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Mon, 28 Oct 2013 01:35:59 -0700
Subject: staging: bcm: Replace BOOLEAN with bool

Remove user-defined BOOLEAN data type with C bool data
type.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/bcm/Adapter.h             | 118 +++++++++++++++---------------
 drivers/staging/bcm/CmHost.c              |   6 +-
 drivers/staging/bcm/CmHost.h              |   2 +-
 drivers/staging/bcm/DDRInit.c             |   2 +-
 drivers/staging/bcm/HandleControlPacket.c |   4 +-
 drivers/staging/bcm/IPv6Protocol.c        |  14 ++--
 drivers/staging/bcm/InterfaceInit.c       |   2 +-
 drivers/staging/bcm/InterfaceRx.c         |   4 +-
 drivers/staging/bcm/InterfaceRx.h         |   2 +-
 drivers/staging/bcm/InterfaceTx.c         |   2 +-
 drivers/staging/bcm/LeakyBucket.c         |   2 +-
 drivers/staging/bcm/PHSModule.c           |  18 ++---
 drivers/staging/bcm/PHSModule.h           |   4 +-
 drivers/staging/bcm/Prototypes.h          |  12 +--
 drivers/staging/bcm/Qos.c                 |  26 +++----
 drivers/staging/bcm/Transmit.c            |   2 +-
 drivers/staging/bcm/Typedefs.h            |   2 +-
 drivers/staging/bcm/led_control.c         |  10 +--
 drivers/staging/bcm/nvm.c                 |  24 +++---
 drivers/staging/bcm/vendorspecificextn.c  |   2 +-
 drivers/staging/bcm/vendorspecificextn.h  |   2 +-
 21 files changed, 130 insertions(+), 130 deletions(-)

diff --git a/drivers/staging/bcm/Adapter.h b/drivers/staging/bcm/Adapter.h
index 1d8bf08b5bfd..d6c9630a8822 100644
--- a/drivers/staging/bcm/Adapter.h
+++ b/drivers/staging/bcm/Adapter.h
@@ -63,7 +63,7 @@ struct bcm_classifier_rule {
 	ULONG		ulSFID;
 	UCHAR		ucReserved[2];
 	B_UINT16	uiClassifierRuleIndex;
-	BOOLEAN		bUsed;
+	bool		bUsed;
 	USHORT		usVCID_Value;
 	B_UINT8		u8ClassifierRulePriority; /* This field detemines the Classifier Priority */
 	U_IP_ADDRESS	stSrcIpAddress;
@@ -86,14 +86,14 @@ struct bcm_classifier_rule {
 	USHORT		usDestPortRangeHi[MAX_PORT_RANGE];
 	UCHAR		ucDestPortRangeLength;
 
-	BOOLEAN		bProtocolValid;
-	BOOLEAN		bTOSValid;
-	BOOLEAN		bDestIpValid;
-	BOOLEAN		bSrcIpValid;
+	bool		bProtocolValid;
+	bool		bTOSValid;
+	bool		bDestIpValid;
+	bool		bSrcIpValid;
 
 	/* For IPv6 Addressing */
 	UCHAR		ucDirection;
-	BOOLEAN		bIpv6Protocol;
+	bool		bIpv6Protocol;
 	UINT32		u32PHSRuleID;
 	struct bcm_phs_rule sPhsRule;
 	UCHAR		u8AssociatedPHSI;
@@ -113,11 +113,11 @@ struct bcm_classifier_rule {
 };
 
 struct bcm_fragmented_packet_info {
-	BOOLEAN			bUsed;
+	bool			bUsed;
 	ULONG			ulSrcIpAddress;
 	USHORT			usIpIdentification;
 	struct bcm_classifier_rule *pstMatchedClassifierEntry;
-	BOOLEAN			bOutOfOrderFragment;
+	bool			bOutOfOrderFragment;
 };
 
 struct bcm_packet_info {
@@ -128,9 +128,9 @@ struct bcm_packet_info {
 	/* This field determines the priority of the SF Queues */
 	B_UINT8		u8TrafficPriority;
 
-	BOOLEAN		bValid;
-	BOOLEAN		bActive;
-	BOOLEAN		bActivateRequestSent;
+	bool		bValid;
+	bool		bActive;
+	bool		bActivateRequestSent;
 
 	B_UINT8		u8QueueType; /* BE or rtPS */
 
@@ -170,17 +170,17 @@ struct bcm_packet_info {
 		};
 	};
 
-	BOOLEAN		bProtocolValid;
-	BOOLEAN		bTOSValid;
-	BOOLEAN		bDestIpValid;
-	BOOLEAN		bSrcIpValid;
+	bool		bProtocolValid;
+	bool		bTOSValid;
+	bool		bDestIpValid;
+	bool		bSrcIpValid;
 
-	BOOLEAN		bActiveSet;
-	BOOLEAN		bAdmittedSet;
-	BOOLEAN		bAuthorizedSet;
-	BOOLEAN		bClassifierPriority;
+	bool		bActiveSet;
+	bool		bAdmittedSet;
+	bool		bAuthorizedSet;
+	bool		bClassifierPriority;
 	UCHAR		ucServiceClassName[MAX_CLASS_NAME_LENGTH];
-	BOOLEAN		bHeaderSuppressionEnabled;
+	bool		bHeaderSuppressionEnabled;
 	spinlock_t	SFQueueLock;
 	void		*pstSFIndication;
 	struct timeval	stLastUpdateTokenAt;
@@ -196,8 +196,8 @@ struct bcm_tarang_data {
 	struct sk_buff		*RxAppControlHead;
 	struct sk_buff		*RxAppControlTail;
 	int			AppCtrlQueueLen;
-	BOOLEAN			MacTracingEnabled;
-	BOOLEAN			bApplicationToExit;
+	bool			MacTracingEnabled;
+	bool			bApplicationToExit;
 	struct bcm_mibs_dropped_cntrl_msg stDroppedAppCntrlMsgs;
 	ULONG			RxCntrlMsgBitMask;
 };
@@ -205,7 +205,7 @@ struct bcm_tarang_data {
 struct bcm_targetdsx_buffer {
 	ULONG		ulTargetDsxBuffer;
 	B_UINT16	tid;
-	BOOLEAN		valid;
+	bool		valid;
 };
 
 typedef int (*FP_FLASH_WRITE)(struct bcm_mini_adapter *, UINT, PVOID);
@@ -221,11 +221,11 @@ struct bcm_mini_adapter {
 	u32			msg_enable;
 	CHAR			*caDsxReqResp;
 	atomic_t		ApplicationRunning;
-	BOOLEAN			AppCtrlQueueOverFlow;
+	bool			AppCtrlQueueOverFlow;
 	atomic_t		CurrentApplicationCount;
 	atomic_t		RegisteredApplicationCount;
-	BOOLEAN			LinkUpStatus;
-	BOOLEAN			TimerActive;
+	bool			LinkUpStatus;
+	bool			TimerActive;
 	u32			StatisticsPointer;
 	struct sk_buff		*RxControlHead;
 	struct sk_buff		*RxControlTail;
@@ -249,22 +249,22 @@ struct bcm_mini_adapter {
 	UINT			u32TotalDSD;
 	struct bcm_packet_info	PackInfo[NO_OF_QUEUES];
 	struct bcm_classifier_rule astClassifierTable[MAX_CLASSIFIERS];
-	BOOLEAN			TransferMode;
+	bool			TransferMode;
 
 	/*************** qos ******************/
-	BOOLEAN			bETHCSEnabled;
+	bool			bETHCSEnabled;
 	ULONG			BEBucketSize;
 	ULONG			rtPSBucketSize;
 	UCHAR			LinkStatus;
-	BOOLEAN			AutoLinkUp;
-	BOOLEAN			AutoSyncup;
+	bool			AutoLinkUp;
+	bool			AutoSyncup;
 
 	int			major;
 	int			minor;
 	wait_queue_head_t	tx_packet_wait_queue;
 	wait_queue_head_t	process_rx_cntrlpkt;
 	atomic_t		process_waiting;
-	BOOLEAN			fw_download_done;
+	bool			fw_download_done;
 
 	char			*txctlpacket[MAX_CNTRL_PKTS];
 	atomic_t		cntrlpktCnt ;
@@ -280,19 +280,19 @@ struct bcm_mini_adapter {
 	ULONG			ulTotalTargetBuffersAvailable;
 	unsigned long		chip_id;
 	wait_queue_head_t	lowpower_mode_wait_queue;
-	BOOLEAN			bFlashBoot;
-	BOOLEAN			bBinDownloaded;
-	BOOLEAN			bCfgDownloaded;
-	BOOLEAN			bSyncUpRequestSent;
+	bool			bFlashBoot;
+	bool			bBinDownloaded;
+	bool			bCfgDownloaded;
+	bool			bSyncUpRequestSent;
 	USHORT			usBestEffortQueueIndex;
 	wait_queue_head_t	ioctl_fw_dnld_wait_queue;
-	BOOLEAN			waiting_to_fw_download_done;
+	bool			waiting_to_fw_download_done;
 	pid_t			fw_download_process_pid;
 	struct bcm_target_params *pstargetparams;
-	BOOLEAN			device_removed;
-	BOOLEAN			DeviceAccess;
-	BOOLEAN			bIsAutoCorrectEnabled;
-	BOOLEAN			bDDRInitDone;
+	bool			device_removed;
+	bool			DeviceAccess;
+	bool			bIsAutoCorrectEnabled;
+	bool			bDDRInitDone;
 	int			DDRSetting;
 	ULONG			ulPowerSaveMode;
 	spinlock_t		txtransmitlock;
@@ -324,22 +324,22 @@ struct bcm_mini_adapter {
 			PVOID,
 			int);
 	int (*interface_transmit)(PVOID, PVOID , UINT);
-	BOOLEAN			IdleMode;
-	BOOLEAN			bDregRequestSentInIdleMode;
-	BOOLEAN			bTriedToWakeUpFromlowPowerMode;
-	BOOLEAN			bShutStatus;
-	BOOLEAN			bWakeUpDevice;
+	bool			IdleMode;
+	bool			bDregRequestSentInIdleMode;
+	bool			bTriedToWakeUpFromlowPowerMode;
+	bool			bShutStatus;
+	bool			bWakeUpDevice;
 	unsigned int		usIdleModePattern;
 	/* BOOLEAN			bTriedToWakeUpFromShutdown; */
-	BOOLEAN			bLinkDownRequested;
+	bool			bLinkDownRequested;
 	int			downloadDDR;
 	struct bcm_phs_extension stBCMPhsContext;
 	struct bcm_hdr_suppression_contextinfo stPhsTxContextInfo;
 	uint8_t			ucaPHSPktRestoreBuf[2048];
 	uint8_t			bPHSEnabled;
-	BOOLEAN			AutoFirmDld;
-	BOOLEAN			bMipsConfig;
-	BOOLEAN			bDPLLConfig;
+	bool			AutoFirmDld;
+	bool			bMipsConfig;
+	bool			bDPLLConfig;
 	UINT32			aTxPktSizeHist[MIBS_MAX_HIST_ENTRIES];
 	UINT32			aRxPktSizeHist[MIBS_MAX_HIST_ENTRIES];
 	struct bcm_fragmented_packet_info astFragmentedPktClassifierTable[MAX_FRAGMENTEDIP_CLASSIFICATION_ENTRIES];
@@ -348,8 +348,8 @@ struct bcm_mini_adapter {
 	enum bcm_nvm_type	eNVMType;
 	UINT			uiSectorSize;
 	UINT			uiSectorSizeInCFG;
-	BOOLEAN			bSectorSizeOverride;
-	BOOLEAN			bStatusWrite;
+	bool			bSectorSizeOverride;
+	bool			bStatusWrite;
 	UINT			uiNVMDSDSize;
 	UINT			uiVendorExtnFlag;
 	/* it will always represent chosen DSD at any point of time.
@@ -376,18 +376,18 @@ struct bcm_mini_adapter {
 	UINT			uiActiveDSDOffsetAtFwDld;  /* For accessing Active DSD chosen before f/w download */
 	UINT			uiFlashLayoutMajorVersion;
 	UINT			uiFlashLayoutMinorVersion;
-	BOOLEAN			bAllDSDWriteAllow;
-	BOOLEAN			bSigCorrupted;
+	bool			bAllDSDWriteAllow;
+	bool			bSigCorrupted;
 	/* this should be set who so ever want to change the Headers. after Wrtie it should be reset immediately. */
-	BOOLEAN			bHeaderChangeAllowed;
+	bool			bHeaderChangeAllowed;
 	int			SelectedChip;
-	BOOLEAN			bEndPointHalted;
+	bool			bEndPointHalted;
 	/* while bFlashRawRead will be true, Driver  ignore map lay out and consider flash as of without any map. */
-	BOOLEAN			bFlashRawRead;
-	BOOLEAN			bPreparingForLowPowerMode;
-	BOOLEAN			bDoSuspend;
+	bool			bFlashRawRead;
+	bool			bPreparingForLowPowerMode;
+	bool			bDoSuspend;
 	UINT			syscfgBefFwDld;
-	BOOLEAN			StopAllXaction;
+	bool			StopAllXaction;
 	UINT32			liTimeSinceLastNetEntry; /* Used to Support extended CAPI requirements from */
 	struct semaphore	LowPowerModeSync;
 	ULONG			liDrainCalculated;
diff --git a/drivers/staging/bcm/CmHost.c b/drivers/staging/bcm/CmHost.c
index 976514502927..65fd768f7774 100644
--- a/drivers/staging/bcm/CmHost.c
+++ b/drivers/staging/bcm/CmHost.c
@@ -113,7 +113,7 @@ static VOID deleteSFBySfid(struct bcm_mini_adapter *Adapter, UINT uiSearchRuleIn
 static inline VOID
 CopyIpAddrToClassifier(struct bcm_classifier_rule *pstClassifierEntry,
 		B_UINT8 u8IpAddressLen, B_UINT8 *pu8IpAddressMaskSrc,
-		BOOLEAN bIpVersion6, enum bcm_ipaddr_context eIpAddrContext)
+		bool bIpVersion6, enum bcm_ipaddr_context eIpAddrContext)
 {
 	int i = 0;
 	UINT nSizeOfIPAddressInBytes = IP_LENGTH_OF_ADDRESS;
@@ -213,7 +213,7 @@ CopyIpAddrToClassifier(struct bcm_classifier_rule *pstClassifierEntry,
 	}
 }
 
-void ClearTargetDSXBuffer(struct bcm_mini_adapter *Adapter, B_UINT16 TID, BOOLEAN bFreeAll)
+void ClearTargetDSXBuffer(struct bcm_mini_adapter *Adapter, B_UINT16 TID, bool bFreeAll)
 {
 	int i;
 
@@ -1630,7 +1630,7 @@ int FreeAdapterDsxBuffer(struct bcm_mini_adapter *Adapter)
  * for the Connection Management.
  * @return - Queue index for the free SFID else returns Invalid Index.
  */
-BOOLEAN CmControlResponseMessage(struct bcm_mini_adapter *Adapter,  /* <Pointer to the Adapter structure */
+bool CmControlResponseMessage(struct bcm_mini_adapter *Adapter,  /* <Pointer to the Adapter structure */
 				PVOID pvBuffer /* Starting Address of the Buffer, that contains the AddIndication Data */)
 {
 	struct bcm_connect_mgr_params *psfLocalSet = NULL;
diff --git a/drivers/staging/bcm/CmHost.h b/drivers/staging/bcm/CmHost.h
index 4ddfc3d45bc0..0887d3f49e2f 100644
--- a/drivers/staging/bcm/CmHost.h
+++ b/drivers/staging/bcm/CmHost.h
@@ -55,7 +55,7 @@ unsigned long StoreCmControlResponseMessage(struct bcm_mini_adapter *Adapter, vo
 int AllocAdapterDsxBuffer(struct bcm_mini_adapter *Adapter);
 int FreeAdapterDsxBuffer(struct bcm_mini_adapter *Adapter);
 unsigned long SetUpTargetDsxBuffers(struct bcm_mini_adapter *Adapter);
-BOOLEAN CmControlResponseMessage(struct bcm_mini_adapter *Adapter, void *pvBuffer);
+bool CmControlResponseMessage(struct bcm_mini_adapter *Adapter, void *pvBuffer);
 
 #pragma pack(pop)
 
diff --git a/drivers/staging/bcm/DDRInit.c b/drivers/staging/bcm/DDRInit.c
index f5eda96f0f83..f9cd7ac0b9e8 100644
--- a/drivers/staging/bcm/DDRInit.c
+++ b/drivers/staging/bcm/DDRInit.c
@@ -1106,7 +1106,7 @@ int download_ddr_settings(struct bcm_mini_adapter *Adapter)
 	unsigned long ul_ddr_setting_load_addr = DDR_DUMP_INTERNAL_DEVICE_MEMORY;
 	UINT  value = 0;
 	int retval = STATUS_SUCCESS;
-	BOOLEAN bOverrideSelfRefresh = FALSE;
+	bool bOverrideSelfRefresh = FALSE;
 
 	switch (Adapter->chip_id)
 	{
diff --git a/drivers/staging/bcm/HandleControlPacket.c b/drivers/staging/bcm/HandleControlPacket.c
index 1bb53e247a62..48119ee5aeaa 100644
--- a/drivers/staging/bcm/HandleControlPacket.c
+++ b/drivers/staging/bcm/HandleControlPacket.c
@@ -14,10 +14,10 @@
 static VOID handle_rx_control_packet(struct bcm_mini_adapter *Adapter, struct sk_buff *skb)
 {
 	struct bcm_tarang_data *pTarang = NULL;
-	BOOLEAN HighPriorityMessage = FALSE;
+	bool HighPriorityMessage = FALSE;
 	struct sk_buff *newPacket = NULL;
 	CHAR cntrl_msg_mask_bit = 0;
-	BOOLEAN drop_pkt_flag = TRUE;
+	bool drop_pkt_flag = TRUE;
 	USHORT usStatus = *(PUSHORT)(skb->data);
 
 	if (netif_msg_pktdata(Adapter))
diff --git a/drivers/staging/bcm/IPv6Protocol.c b/drivers/staging/bcm/IPv6Protocol.c
index 6d803e7b094a..4168fd012758 100644
--- a/drivers/staging/bcm/IPv6Protocol.c
+++ b/drivers/staging/bcm/IPv6Protocol.c
@@ -1,13 +1,13 @@
 #include "headers.h"
 
-static BOOLEAN MatchSrcIpv6Address(struct bcm_classifier_rule *pstClassifierRule,
+static bool MatchSrcIpv6Address(struct bcm_classifier_rule *pstClassifierRule,
 	struct bcm_ipv6_hdr *pstIpv6Header);
-static BOOLEAN MatchDestIpv6Address(struct bcm_classifier_rule *pstClassifierRule,
+static bool MatchDestIpv6Address(struct bcm_classifier_rule *pstClassifierRule,
 	struct bcm_ipv6_hdr *pstIpv6Header);
 static VOID DumpIpv6Header(struct bcm_ipv6_hdr *pstIpv6Header);
 
 static UCHAR *GetNextIPV6ChainedHeader(UCHAR **ppucPayload,
-	UCHAR *pucNextHeader, BOOLEAN *bParseDone, USHORT *pusPayloadLength)
+	UCHAR *pucNextHeader, bool *bParseDone, USHORT *pusPayloadLength)
 {
 	UCHAR *pucRetHeaderPtr = NULL;
 	UCHAR *pucPayloadPtr = NULL;
@@ -144,7 +144,7 @@ static UCHAR GetIpv6ProtocolPorts(UCHAR *pucPayload, USHORT *pusSrcPort,
 	USHORT *pusDestPort, USHORT usPayloadLength, UCHAR ucNextHeader)
 {
 	UCHAR *pIpv6HdrScanContext = pucPayload;
-	BOOLEAN bDone = FALSE;
+	bool bDone = FALSE;
 	UCHAR ucHeaderType = 0;
 	UCHAR *pucNextHeader = NULL;
 	struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
@@ -187,7 +187,7 @@ USHORT	IpVersion6(struct bcm_mini_adapter *Adapter, PVOID pcIpHeader,
 	USHORT	ushSrcPort = 0;
 	UCHAR   ucNextProtocolAboveIP = 0;
 	struct bcm_ipv6_hdr *pstIpv6Header = NULL;
-	BOOLEAN bClassificationSucceed = FALSE;
+	bool bClassificationSucceed = FALSE;
 
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
 			DBG_LVL_ALL, "IpVersion6 ==========>\n");
@@ -288,7 +288,7 @@ USHORT	IpVersion6(struct bcm_mini_adapter *Adapter, PVOID pcIpHeader,
 }
 
 
-static BOOLEAN MatchSrcIpv6Address(struct bcm_classifier_rule *pstClassifierRule,
+static bool MatchSrcIpv6Address(struct bcm_classifier_rule *pstClassifierRule,
 	struct bcm_ipv6_hdr *pstIpv6Header)
 {
 	UINT uiLoopIndex = 0;
@@ -344,7 +344,7 @@ static BOOLEAN MatchSrcIpv6Address(struct bcm_classifier_rule *pstClassifierRule
 	return FALSE;
 }
 
-static BOOLEAN MatchDestIpv6Address(struct bcm_classifier_rule *pstClassifierRule,
+static bool MatchDestIpv6Address(struct bcm_classifier_rule *pstClassifierRule,
 	struct bcm_ipv6_hdr *pstIpv6Header)
 {
 	UINT uiLoopIndex = 0;
diff --git a/drivers/staging/bcm/InterfaceInit.c b/drivers/staging/bcm/InterfaceInit.c
index 79058ce5b332..e95d4b53e721 100644
--- a/drivers/staging/bcm/InterfaceInit.c
+++ b/drivers/staging/bcm/InterfaceInit.c
@@ -430,7 +430,7 @@ static int InterfaceAdapterInit(struct bcm_interface_adapter *psIntfAdapter)
 	unsigned long value;
 	int retval = 0;
 	int usedIntOutForBulkTransfer = 0 ;
-	BOOLEAN bBcm16 = FALSE;
+	bool bBcm16 = FALSE;
 	UINT uiData = 0;
 	int bytes;
 
diff --git a/drivers/staging/bcm/InterfaceRx.c b/drivers/staging/bcm/InterfaceRx.c
index 26f5bc76111c..1bbca9987330 100644
--- a/drivers/staging/bcm/InterfaceRx.c
+++ b/drivers/staging/bcm/InterfaceRx.c
@@ -38,7 +38,7 @@ GetBulkInRcb(struct bcm_interface_adapter *psIntfAdapter)
 static void read_bulk_callback(struct urb *urb)
 {
 	struct sk_buff *skb = NULL;
-	BOOLEAN bHeaderSupressionEnabled = FALSE;
+	bool bHeaderSupressionEnabled = FALSE;
 	int QueueIndex = NO_OF_QUEUES + 1;
 	UINT uiIndex=0;
 	int process_done = 1;
@@ -240,7 +240,7 @@ Return:				TRUE  - If Rx was successful.
 					Other - If an error occurred.
 */
 
-BOOLEAN InterfaceRx (struct bcm_interface_adapter *psIntfAdapter)
+bool InterfaceRx (struct bcm_interface_adapter *psIntfAdapter)
 {
 	USHORT RxDescCount = NUM_RX_DESC - atomic_read(&psIntfAdapter->uNumRcbUsed);
 	struct bcm_usb_rcb *pRcb = NULL;
diff --git a/drivers/staging/bcm/InterfaceRx.h b/drivers/staging/bcm/InterfaceRx.h
index 424645e9e476..b4e858bcda34 100644
--- a/drivers/staging/bcm/InterfaceRx.h
+++ b/drivers/staging/bcm/InterfaceRx.h
@@ -1,7 +1,7 @@
 #ifndef _INTERFACE_RX_H
 #define _INTERFACE_RX_H
 
-BOOLEAN InterfaceRx(struct bcm_interface_adapter *Adapter);
+bool InterfaceRx(struct bcm_interface_adapter *Adapter);
 
 #endif
 
diff --git a/drivers/staging/bcm/InterfaceTx.c b/drivers/staging/bcm/InterfaceTx.c
index b8c785556dda..f7a0f9aa8a3c 100644
--- a/drivers/staging/bcm/InterfaceTx.c
+++ b/drivers/staging/bcm/InterfaceTx.c
@@ -7,7 +7,7 @@ static void write_bulk_callback(struct urb *urb/*, struct pt_regs *regs*/)
 	struct bcm_interface_adapter *psIntfAdapter = pTcb->psIntfAdapter;
 	struct bcm_link_request *pControlMsg = (struct bcm_link_request *)urb->transfer_buffer;
 	struct bcm_mini_adapter *psAdapter = psIntfAdapter->psAdapter ;
-	BOOLEAN bpowerDownMsg = FALSE ;
+	bool bpowerDownMsg = FALSE ;
 	struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
 
     if (unlikely(netif_msg_tx_done(Adapter)))
diff --git a/drivers/staging/bcm/LeakyBucket.c b/drivers/staging/bcm/LeakyBucket.c
index bc486163332d..0236f81059c8 100644
--- a/drivers/staging/bcm/LeakyBucket.c
+++ b/drivers/staging/bcm/LeakyBucket.c
@@ -250,7 +250,7 @@ VOID transmit_packets(struct bcm_mini_adapter *Adapter)
 	UINT uiPrevTotalCount = 0;
 	int iIndex = 0;
 
-	BOOLEAN exit_flag = TRUE;
+	bool exit_flag = TRUE;
 
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, TX_PACKETS, DBG_LVL_ALL, "=====>");
 
diff --git a/drivers/staging/bcm/PHSModule.c b/drivers/staging/bcm/PHSModule.c
index 56c5bee6514e..33965d763742 100644
--- a/drivers/staging/bcm/PHSModule.c
+++ b/drivers/staging/bcm/PHSModule.c
@@ -8,9 +8,9 @@ static UINT CreateClassifierPHSRule(B_UINT16  uiClsId, struct bcm_phs_classifier
 
 static UINT UpdateClassifierPHSRule(B_UINT16 uiClsId, struct bcm_phs_classifier_entry *pstClassifierEntry, struct bcm_phs_classifier_table *psaClassifiertable, struct bcm_phs_rule *psPhsRule, B_UINT8 u8AssociatedPHSI);
 
-static BOOLEAN ValidatePHSRuleComplete(struct bcm_phs_rule *psPhsRule);
+static bool ValidatePHSRuleComplete(struct bcm_phs_rule *psPhsRule);
 
-static BOOLEAN DerefPhsRule(B_UINT16 uiClsId, struct bcm_phs_classifier_table *psaClassifiertable, struct bcm_phs_rule *pstPhsRule);
+static bool DerefPhsRule(B_UINT16 uiClsId, struct bcm_phs_classifier_table *psaClassifiertable, struct bcm_phs_rule *pstPhsRule);
 
 static UINT GetClassifierEntry(struct bcm_phs_classifier_table *pstClassifierTable, B_UINT32 uiClsid, enum bcm_phs_classifier_context eClsContext, struct bcm_phs_classifier_entry **ppstClassifierEntry);
 
@@ -67,7 +67,7 @@ int PHSTransmit(struct bcm_mini_adapter *Adapter,
 		struct sk_buff **pPacket,
 		USHORT Vcid,
 		B_UINT16 uiClassifierRuleID,
-		BOOLEAN bHeaderSuppressionEnabled,
+		bool bHeaderSuppressionEnabled,
 		UINT *PacketLen,
 		UCHAR bEthCSSupport)
 {
@@ -81,7 +81,7 @@ int PHSTransmit(struct bcm_mini_adapter *Adapter,
 	PUCHAR pucPHSPktHdrOutBuf = Adapter->stPhsTxContextInfo.ucaHdrSuppressionOutBuf;
 	UINT usPacketType;
 	UINT BytesToRemove = 0;
-	BOOLEAN bPHSI = 0;
+	bool bPHSI = 0;
 	LONG ulPhsStatus = 0;
 	UINT numBytesCompressed = 0;
 	struct sk_buff *newPacket = NULL;
@@ -788,7 +788,7 @@ static void free_phs_serviceflow_rules(struct bcm_phs_table *psServiceFlowRulesT
 	psServiceFlowRulesTable = NULL;
 }
 
-static BOOLEAN ValidatePHSRuleComplete(IN struct bcm_phs_rule *psPhsRule)
+static bool ValidatePHSRuleComplete(IN struct bcm_phs_rule *psPhsRule)
 {
 	if (psPhsRule) {
 		if (!psPhsRule->u8PHSI) {
@@ -888,7 +888,7 @@ static UINT CreateSFToClassifierRuleMapping(IN B_UINT16 uiVcid, IN B_UINT16  uiC
 	struct bcm_phs_classifier_table *psaClassifiertable = NULL;
 	UINT uiStatus = 0;
 	int iSfIndex;
-	BOOLEAN bFreeEntryFound = FALSE;
+	bool bFreeEntryFound = FALSE;
 
 	/* Check for a free entry in SFID table */
 	for (iSfIndex = 0; iSfIndex < MAX_SERVICEFLOWS; iSfIndex++) {
@@ -1009,7 +1009,7 @@ static UINT CreateClassifierPHSRule(IN B_UINT16  uiClsId,
 				B_UINT8 u8AssociatedPHSI)
 {
 	UINT iClassifierIndex = 0;
-	BOOLEAN bFreeEntryFound = FALSE;
+	bool bFreeEntryFound = FALSE;
 	struct bcm_phs_classifier_entry *psClassifierRules = NULL;
 	UINT nStatus = PHS_SUCCESS;
 	struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
@@ -1102,7 +1102,7 @@ static UINT UpdateClassifierPHSRule(IN B_UINT16  uiClsId,
 {
 	struct bcm_phs_rule *pstAddPhsRule = NULL;
 	UINT nPhsRuleIndex = 0;
-	BOOLEAN bPHSRuleOrphaned = FALSE;
+	bool bPHSRuleOrphaned = FALSE;
 	struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
 
 	psPhsRule->u8RefCnt = 0;
@@ -1150,7 +1150,7 @@ static UINT UpdateClassifierPHSRule(IN B_UINT16  uiClsId,
 	return PHS_SUCCESS;
 }
 
-static BOOLEAN DerefPhsRule(IN B_UINT16  uiClsId, struct bcm_phs_classifier_table *psaClassifiertable, struct bcm_phs_rule *pstPhsRule)
+static bool DerefPhsRule(IN B_UINT16  uiClsId, struct bcm_phs_classifier_table *psaClassifiertable, struct bcm_phs_rule *pstPhsRule)
 {
 	if (pstPhsRule == NULL)
 		return FALSE;
diff --git a/drivers/staging/bcm/PHSModule.h b/drivers/staging/bcm/PHSModule.h
index 82d868284180..d697f9c860cf 100644
--- a/drivers/staging/bcm/PHSModule.h
+++ b/drivers/staging/bcm/PHSModule.h
@@ -5,7 +5,7 @@ int PHSTransmit(struct bcm_mini_adapter *Adapter,
 					struct sk_buff **pPacket,
 					 USHORT Vcid,
 					 B_UINT16 uiClassifierRuleID,
-					 BOOLEAN bHeaderSuppressionEnabled,
+					 bool bHeaderSuppressionEnabled,
 					 PUINT PacketLen,
 					 UCHAR bEthCSSupport);
 
@@ -39,7 +39,7 @@ ULONG PhsDeleteClassifierRule(void* pvContext, B_UINT16 uiVcid ,B_UINT16  uiClsI
 ULONG PhsDeleteSFRules(void* pvContext,B_UINT16 uiVcid) ;
 
 
-BOOLEAN ValidatePHSRule(struct bcm_phs_rule *psPhsRule);
+bool ValidatePHSRule(struct bcm_phs_rule *psPhsRule);
 
 UINT GetServiceFlowEntry(struct bcm_phs_table *psServiceFlowTable,B_UINT16 uiVcid, struct bcm_phs_entry **ppstServiceFlowEntry);
 
diff --git a/drivers/staging/bcm/Prototypes.h b/drivers/staging/bcm/Prototypes.h
index 2a673b125f00..fb53a00591eb 100644
--- a/drivers/staging/bcm/Prototypes.h
+++ b/drivers/staging/bcm/Prototypes.h
@@ -111,7 +111,7 @@ void update_per_cid_rx (struct bcm_mini_adapter *Adapter);
 
 void update_per_sf_desc_cnts( struct bcm_mini_adapter *Adapter);
 
-void ClearTargetDSXBuffer(struct bcm_mini_adapter *Adapter,B_UINT16 TID,BOOLEAN bFreeAll);
+void ClearTargetDSXBuffer(struct bcm_mini_adapter *Adapter,B_UINT16 TID,bool bFreeAll);
 
 
 void flush_queue(struct bcm_mini_adapter *Adapter, UINT iQIndex);
@@ -138,7 +138,7 @@ INT BeceemEEPROMBulkWrite(
 	PUCHAR pBuffer,
 	UINT uiOffset,
 	UINT uiNumBytes,
-	BOOLEAN bVerify);
+	bool bVerify);
 
 
 INT ReadBeceemEEPROM(struct bcm_mini_adapter *Adapter,UINT dwAddress, UINT *pdwData);
@@ -155,13 +155,13 @@ INT BeceemNVMWrite(
 	PUINT pBuffer,
 	UINT uiOffset,
 	UINT uiNumBytes,
-	BOOLEAN bVerify);
+	bool bVerify);
 
 
 INT BcmInitNVM(struct bcm_mini_adapter *Adapter);
 
 INT BcmUpdateSectorSize(struct bcm_mini_adapter *Adapter,UINT uiSectorSize);
-BOOLEAN IsSectionExistInFlash(struct bcm_mini_adapter *Adapter, enum bcm_flash2x_section_val section);
+bool IsSectionExistInFlash(struct bcm_mini_adapter *Adapter, enum bcm_flash2x_section_val section);
 
 INT BcmGetFlash2xSectionalBitMap(struct bcm_mini_adapter *Adapter, struct bcm_flash2x_bitmap *psFlash2xBitMap);
 
@@ -198,7 +198,7 @@ INT	BcmCopySection(struct bcm_mini_adapter *Adapter,
 						UINT numOfBytes);
 
 
-BOOLEAN IsNonCDLessDevice(struct bcm_mini_adapter *Adapter);
+bool IsNonCDLessDevice(struct bcm_mini_adapter *Adapter);
 
 
 VOID OverrideServiceFlowParams(struct bcm_mini_adapter *Adapter,PUINT puiBuffer);
@@ -212,7 +212,7 @@ INT buffDnldVerify(struct bcm_mini_adapter *Adapter, unsigned char *mappedbuffer
 
 
 VOID putUsbSuspend(struct work_struct *work);
-BOOLEAN IsReqGpioIsLedInNVM(struct bcm_mini_adapter *Adapter, UINT gpios);
+bool IsReqGpioIsLedInNVM(struct bcm_mini_adapter *Adapter, UINT gpios);
 
 
 #endif
diff --git a/drivers/staging/bcm/Qos.c b/drivers/staging/bcm/Qos.c
index 2d4a77cca915..3d687e577dd3 100644
--- a/drivers/staging/bcm/Qos.c
+++ b/drivers/staging/bcm/Qos.c
@@ -5,7 +5,7 @@ This file contains the routines related to Quality of Service.
 #include "headers.h"
 
 static void EThCSGetPktInfo(struct bcm_mini_adapter *Adapter, PVOID pvEthPayload, struct bcm_eth_packet_info *pstEthCsPktInfo);
-static BOOLEAN EThCSClassifyPkt(struct bcm_mini_adapter *Adapter, struct sk_buff* skb, struct bcm_eth_packet_info *pstEthCsPktInfo, struct bcm_classifier_rule *pstClassifierRule, B_UINT8 EthCSCupport);
+static bool EThCSClassifyPkt(struct bcm_mini_adapter *Adapter, struct sk_buff* skb, struct bcm_eth_packet_info *pstEthCsPktInfo, struct bcm_classifier_rule *pstClassifierRule, B_UINT8 EthCSCupport);
 
 static USHORT	IpVersion4(struct bcm_mini_adapter *Adapter, struct iphdr *iphd,
 			   struct bcm_classifier_rule *pstClassifierRule);
@@ -24,7 +24,7 @@ static VOID PruneQueue(struct bcm_mini_adapter *Adapter, INT iIndex);
 *
 * Returns     - TRUE(If address matches) else FAIL .
 *********************************************************************/
-BOOLEAN MatchSrcIpAddress(struct bcm_classifier_rule *pstClassifierRule, ULONG ulSrcIP)
+bool MatchSrcIpAddress(struct bcm_classifier_rule *pstClassifierRule, ULONG ulSrcIP)
 {
 	UCHAR ucLoopIndex = 0;
 
@@ -58,7 +58,7 @@ BOOLEAN MatchSrcIpAddress(struct bcm_classifier_rule *pstClassifierRule, ULONG u
 *
 * Returns     - TRUE(If address matches) else FAIL .
 *********************************************************************/
-BOOLEAN MatchDestIpAddress(struct bcm_classifier_rule *pstClassifierRule, ULONG ulDestIP)
+bool MatchDestIpAddress(struct bcm_classifier_rule *pstClassifierRule, ULONG ulDestIP)
 {
 	UCHAR ucLoopIndex = 0;
 	struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
@@ -91,7 +91,7 @@ BOOLEAN MatchDestIpAddress(struct bcm_classifier_rule *pstClassifierRule, ULONG
 *
 * Returns     - TRUE(If address matches) else FAIL.
 **************************************************************************/
-BOOLEAN MatchTos(struct bcm_classifier_rule *pstClassifierRule, UCHAR ucTypeOfService)
+bool MatchTos(struct bcm_classifier_rule *pstClassifierRule, UCHAR ucTypeOfService)
 {
 
 	struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
@@ -209,7 +209,7 @@ static USHORT	IpVersion4(struct bcm_mini_adapter *Adapter,
 			   struct bcm_classifier_rule *pstClassifierRule)
 {
 	struct bcm_transport_header *xprt_hdr = NULL;
-	BOOLEAN	bClassificationSucceed = FALSE;
+	bool	bClassificationSucceed = FALSE;
 
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "========>");
 
@@ -451,7 +451,7 @@ USHORT ClassifyPacket(struct bcm_mini_adapter *Adapter, struct sk_buff* skb)
 	struct iphdr *pIpHeader = NULL;
 	INT	  uiSfIndex = 0;
 	USHORT	usIndex = Adapter->usBestEffortQueueIndex;
-	BOOLEAN	bFragmentedPkt = FALSE, bClassificationSucceed = FALSE;
+	bool	bFragmentedPkt = FALSE, bClassificationSucceed = FALSE;
 	USHORT	usCurrFragment = 0;
 
 	struct bcm_tcp_header *pTcpHeader;
@@ -649,7 +649,7 @@ USHORT ClassifyPacket(struct bcm_mini_adapter *Adapter, struct sk_buff* skb)
 		return INVALID_QUEUE_INDEX;
 }
 
-static BOOLEAN EthCSMatchSrcMACAddress(struct bcm_classifier_rule *pstClassifierRule, PUCHAR Mac)
+static bool EthCSMatchSrcMACAddress(struct bcm_classifier_rule *pstClassifierRule, PUCHAR Mac)
 {
 	UINT i = 0;
 	struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
@@ -666,7 +666,7 @@ static BOOLEAN EthCSMatchSrcMACAddress(struct bcm_classifier_rule *pstClassifier
 	return TRUE;
 }
 
-static BOOLEAN EthCSMatchDestMACAddress(struct bcm_classifier_rule *pstClassifierRule, PUCHAR Mac)
+static bool EthCSMatchDestMACAddress(struct bcm_classifier_rule *pstClassifierRule, PUCHAR Mac)
 {
 	UINT i = 0;
 	struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
@@ -683,7 +683,7 @@ static BOOLEAN EthCSMatchDestMACAddress(struct bcm_classifier_rule *pstClassifie
 	return TRUE;
 }
 
-static BOOLEAN EthCSMatchEThTypeSAP(struct bcm_classifier_rule *pstClassifierRule, struct sk_buff* skb, struct bcm_eth_packet_info *pstEthCsPktInfo)
+static bool EthCSMatchEThTypeSAP(struct bcm_classifier_rule *pstClassifierRule, struct sk_buff* skb, struct bcm_eth_packet_info *pstEthCsPktInfo)
 {
 	struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
 	if ((pstClassifierRule->ucEtherTypeLen == 0) ||
@@ -718,9 +718,9 @@ static BOOLEAN EthCSMatchEThTypeSAP(struct bcm_classifier_rule *pstClassifierRul
 
 }
 
-static BOOLEAN EthCSMatchVLANRules(struct bcm_classifier_rule *pstClassifierRule, struct sk_buff* skb, struct bcm_eth_packet_info *pstEthCsPktInfo)
+static bool EthCSMatchVLANRules(struct bcm_classifier_rule *pstClassifierRule, struct sk_buff* skb, struct bcm_eth_packet_info *pstEthCsPktInfo)
 {
-	BOOLEAN bClassificationSucceed = FALSE;
+	bool bClassificationSucceed = FALSE;
 	USHORT usVLANID;
 	B_UINT8 uPriority = 0;
 	struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
@@ -768,12 +768,12 @@ static BOOLEAN EthCSMatchVLANRules(struct bcm_classifier_rule *pstClassifierRule
 }
 
 
-static BOOLEAN EThCSClassifyPkt(struct bcm_mini_adapter *Adapter, struct sk_buff* skb,
+static bool EThCSClassifyPkt(struct bcm_mini_adapter *Adapter, struct sk_buff* skb,
 				struct bcm_eth_packet_info *pstEthCsPktInfo,
 				struct bcm_classifier_rule *pstClassifierRule,
 				B_UINT8 EthCSCupport)
 {
-	BOOLEAN bClassificationSucceed = FALSE;
+	bool bClassificationSucceed = FALSE;
 	bClassificationSucceed = EthCSMatchSrcMACAddress(pstClassifierRule, ((struct bcm_eth_header *)(skb->data))->au8SourceAddress);
 	if (!bClassificationSucceed)
 		return FALSE;
diff --git a/drivers/staging/bcm/Transmit.c b/drivers/staging/bcm/Transmit.c
index f8dc3e20b475..70a9d4ae7f59 100644
--- a/drivers/staging/bcm/Transmit.c
+++ b/drivers/staging/bcm/Transmit.c
@@ -84,7 +84,7 @@ int SendControlPacket(struct bcm_mini_adapter *Adapter, char *pControlPacket)
 int SetupNextSend(struct bcm_mini_adapter *Adapter,  struct sk_buff *Packet, USHORT Vcid)
 {
 	int	status = 0;
-	BOOLEAN	bHeaderSupressionEnabled = FALSE;
+	bool	bHeaderSupressionEnabled = FALSE;
 	B_UINT16 uiClassifierRuleID;
 	u16	QueueIndex = skb_get_queue_mapping(Packet);
 	struct bcm_leader Leader = {0};
diff --git a/drivers/staging/bcm/Typedefs.h b/drivers/staging/bcm/Typedefs.h
index a985abf194fd..69aa16f59300 100644
--- a/drivers/staging/bcm/Typedefs.h
+++ b/drivers/staging/bcm/Typedefs.h
@@ -9,7 +9,7 @@
 #define	 FALSE		0
 #define	 TRUE		1
 
-typedef char BOOLEAN;
+
 typedef char CHAR;
 typedef int INT;
 typedef short SHORT;
diff --git a/drivers/staging/bcm/led_control.c b/drivers/staging/bcm/led_control.c
index 05a948a3698c..194edd7b6890 100644
--- a/drivers/staging/bcm/led_control.c
+++ b/drivers/staging/bcm/led_control.c
@@ -13,7 +13,7 @@ static B_UINT16 CFG_CalculateChecksum(B_UINT8 *pu8Buffer, B_UINT32 u32Size)
 	return u16CheckSum;
 }
 
-BOOLEAN IsReqGpioIsLedInNVM(struct bcm_mini_adapter *Adapter, UINT gpios)
+bool IsReqGpioIsLedInNVM(struct bcm_mini_adapter *Adapter, UINT gpios)
 {
 	INT Status;
 	Status = (Adapter->gpioBitMap & gpios) ^ gpios;
@@ -27,7 +27,7 @@ static INT LED_Blink(struct bcm_mini_adapter *Adapter, UINT GPIO_Num, UCHAR uiLe
 		ULONG timeout, INT num_of_time, enum bcm_led_events currdriverstate)
 {
 	int Status = STATUS_SUCCESS;
-	BOOLEAN bInfinite = FALSE;
+	bool bInfinite = FALSE;
 
 	/* Check if num_of_time is -ve. If yes, blink led in infinite loop */
 	if (num_of_time < 0) {
@@ -108,7 +108,7 @@ static INT LED_Proportional_Blink(struct bcm_mini_adapter *Adapter, UCHAR GPIO_N
 	int Status = STATUS_SUCCESS;
 	INT num_of_time = 0, num_of_time_tx = 0, num_of_time_rx = 0;
 	UINT remDelay = 0;
-	BOOLEAN bBlinkBothLED = TRUE;
+	bool bBlinkBothLED = TRUE;
 	/* UINT GPIO_num = DISABLE_GPIO_NUM; */
 	ulong timeout = 0;
 
@@ -478,7 +478,7 @@ static int ReadLEDInformationFromEEPROM(struct bcm_mini_adapter *Adapter,
 
 
 static int ReadConfigFileStructure(struct bcm_mini_adapter *Adapter,
-					BOOLEAN *bEnableThread)
+					bool *bEnableThread)
 {
 	int Status = STATUS_SUCCESS;
 	/* Array to store GPIO numbers from EEPROM */
@@ -860,7 +860,7 @@ static VOID LEDControlThread(struct bcm_mini_adapter *Adapter)
 int InitLedSettings(struct bcm_mini_adapter *Adapter)
 {
 	int Status = STATUS_SUCCESS;
-	BOOLEAN bEnableThread = TRUE;
+	bool bEnableThread = TRUE;
 	UCHAR uiIndex = 0;
 
 	/*
diff --git a/drivers/staging/bcm/nvm.c b/drivers/staging/bcm/nvm.c
index 1f5b62b4b5a1..59c5bf3ba614 100644
--- a/drivers/staging/bcm/nvm.c
+++ b/drivers/staging/bcm/nvm.c
@@ -45,7 +45,7 @@ static int BeceemFlashBulkWrite(
 	PUINT pBuffer,
 	unsigned int uiOffset,
 	unsigned int uiNumBytes,
-	BOOLEAN bVerify);
+	bool bVerify);
 
 static int GetFlashBaseAddr(struct bcm_mini_adapter *Adapter);
 
@@ -1034,7 +1034,7 @@ static int BeceemFlashBulkWrite(struct bcm_mini_adapter *Adapter,
 				PUINT pBuffer,
 				unsigned int uiOffset,
 				unsigned int uiNumBytes,
-				BOOLEAN bVerify)
+				bool bVerify)
 {
 	PCHAR pTempBuff			= NULL;
 	PUCHAR pcBuffer			= (PUCHAR)pBuffer;
@@ -1222,7 +1222,7 @@ static int BeceemFlashBulkWriteStatus(struct bcm_mini_adapter *Adapter,
 				PUINT pBuffer,
 				unsigned int uiOffset,
 				unsigned int uiNumBytes,
-				BOOLEAN bVerify)
+				bool bVerify)
 {
 	PCHAR pTempBuff			= NULL;
 	PUCHAR pcBuffer			= (PUCHAR)pBuffer;
@@ -1724,7 +1724,7 @@ int BeceemEEPROMBulkWrite(struct bcm_mini_adapter *Adapter,
 			PUCHAR pBuffer,
 			unsigned int uiOffset,
 			unsigned int uiNumBytes,
-			BOOLEAN bVerify)
+			bool bVerify)
 {
 	unsigned int uiBytesToCopy	= uiNumBytes;
 	/* unsigned int uiRdbk		= 0; */
@@ -1870,7 +1870,7 @@ int BeceemNVMWrite(struct bcm_mini_adapter *Adapter,
 		PUINT pBuffer,
 		unsigned int uiOffset,
 		unsigned int uiNumBytes,
-		BOOLEAN bVerify)
+		bool bVerify)
 {
 	int Status = 0;
 	unsigned int uiTemp = 0;
@@ -3105,8 +3105,8 @@ int BcmGetFlash2xSectionalBitMap(struct bcm_mini_adapter *Adapter, struct bcm_fl
 	struct bcm_flash2x_cs_info *psFlash2xCSInfo = Adapter->psFlash2xCSInfo;
 	enum bcm_flash2x_section_val uiHighestPriDSD = 0;
 	enum bcm_flash2x_section_val uiHighestPriISO = 0;
-	BOOLEAN SetActiveDSDDone = FALSE;
-	BOOLEAN SetActiveISODone = FALSE;
+	bool SetActiveDSDDone = FALSE;
+	bool SetActiveISODone = FALSE;
 
 	/* For 1.x map all the section except DSD0 will be shown as not present
 	 * This part will be used by calibration tool to detect the number of DSD present in Flash.
@@ -3536,7 +3536,7 @@ int BcmCopyISO(struct bcm_mini_adapter *Adapter, struct bcm_flash2x_copy_section
 	enum bcm_flash2x_section_val eISOReadPart = 0, eISOWritePart = 0;
 	unsigned int uiReadOffsetWithinPart = 0, uiWriteOffsetWithinPart = 0;
 	unsigned int uiTotalDataToCopy = 0;
-	BOOLEAN IsThisHeaderSector = FALSE;
+	bool IsThisHeaderSector = FALSE;
 	unsigned int sigOffset = 0;
 	unsigned int ISOLength = 0;
 	unsigned int Status = STATUS_SUCCESS;
@@ -4129,7 +4129,7 @@ int BcmCopySection(struct bcm_mini_adapter *Adapter,
 int SaveHeaderIfPresent(struct bcm_mini_adapter *Adapter, PUCHAR pBuff, unsigned int uiOffset)
 {
 	unsigned int offsetToProtect = 0, HeaderSizeToProtect = 0;
-	BOOLEAN bHasHeader = FALSE;
+	bool bHasHeader = FALSE;
 	PUCHAR pTempBuff = NULL;
 	unsigned int uiSectAlignAddr = 0;
 	unsigned int sig = 0;
@@ -4469,9 +4469,9 @@ int WriteToFlashWithoutSectorErase(struct bcm_mini_adapter *Adapter,
 	return Status;
 }
 
-BOOLEAN IsSectionExistInFlash(struct bcm_mini_adapter *Adapter, enum bcm_flash2x_section_val section)
+bool IsSectionExistInFlash(struct bcm_mini_adapter *Adapter, enum bcm_flash2x_section_val section)
 {
-	BOOLEAN SectionPresent = FALSE;
+	bool SectionPresent = FALSE;
 
 	switch (section) {
 	case ISO_IMAGE1:
@@ -4656,7 +4656,7 @@ static int CorruptISOSig(struct bcm_mini_adapter *Adapter, enum bcm_flash2x_sect
 	return STATUS_SUCCESS;
 }
 
-BOOLEAN IsNonCDLessDevice(struct bcm_mini_adapter *Adapter)
+bool IsNonCDLessDevice(struct bcm_mini_adapter *Adapter)
 {
 	if (Adapter->psFlash2xCSInfo->IsCDLessDeviceBootSig == NON_CDLESS_DEVICE_BOOT_SIG)
 		return TRUE;
diff --git a/drivers/staging/bcm/vendorspecificextn.c b/drivers/staging/bcm/vendorspecificextn.c
index d38a06f762df..2c57a16788c0 100644
--- a/drivers/staging/bcm/vendorspecificextn.c
+++ b/drivers/staging/bcm/vendorspecificextn.c
@@ -113,7 +113,7 @@ INT vendorextnReadSection(PVOID  pContext, PUCHAR pBuffer, enum bcm_flash2x_sect
  *		STATUS_SUCCESS/STATUS_FAILURE
  */
 INT vendorextnWriteSection(PVOID  pContext, PUCHAR pBuffer, enum bcm_flash2x_section_val SectionVal,
-			UINT offset, UINT numOfBytes, BOOLEAN bVerify)
+			UINT offset, UINT numOfBytes, bool bVerify)
 {
 	return STATUS_FAILURE;
 }
diff --git a/drivers/staging/bcm/vendorspecificextn.h b/drivers/staging/bcm/vendorspecificextn.h
index 52890d216edf..ff57f0570451 100644
--- a/drivers/staging/bcm/vendorspecificextn.h
+++ b/drivers/staging/bcm/vendorspecificextn.h
@@ -11,7 +11,7 @@ INT vendorextnIoctl(struct bcm_mini_adapter *Adapter, UINT cmd, ULONG arg);
 INT vendorextnReadSection(PVOID  pContext, PUCHAR pBuffer, enum bcm_flash2x_section_val SectionVal,
 			UINT offset, UINT numOfBytes);
 INT vendorextnWriteSection(PVOID  pContext, PUCHAR pBuffer, enum bcm_flash2x_section_val SectionVal,
-			UINT offset, UINT numOfBytes, BOOLEAN bVerify);
+			UINT offset, UINT numOfBytes, bool bVerify);
 INT vendorextnWriteSectionWithoutErase(PVOID  pContext, PUCHAR pBuffer, enum bcm_flash2x_section_val SectionVal,
 			UINT offset, UINT numOfBytes);
 
-- 
cgit 


From f70c8a91cd0e743d0531a158d939bbdb6c0874dc Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Mon, 28 Oct 2013 01:36:19 -0700
Subject: staging: bcm: Replace FALSE with false

Replace user-defined type FALSE with C defined false keyword.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/bcm/Bcmchar.c             |  44 +++++-----
 drivers/staging/bcm/Bcmnet.c              |   2 +-
 drivers/staging/bcm/CmHost.c              |  54 ++++++------
 drivers/staging/bcm/DDRInit.c             |   2 +-
 drivers/staging/bcm/HandleControlPacket.c |  10 +--
 drivers/staging/bcm/IPv6Protocol.c        |  18 ++--
 drivers/staging/bcm/InterfaceDld.c        |   4 +-
 drivers/staging/bcm/InterfaceIdleMode.c   |   4 +-
 drivers/staging/bcm/InterfaceInit.c       |  20 ++---
 drivers/staging/bcm/InterfaceIsr.c        |  12 +--
 drivers/staging/bcm/InterfaceMisc.c       |   8 +-
 drivers/staging/bcm/InterfaceRx.c         |  20 ++---
 drivers/staging/bcm/InterfaceTx.c         |  26 +++---
 drivers/staging/bcm/LeakyBucket.c         |   6 +-
 drivers/staging/bcm/Misc.c                |  68 +++++++--------
 drivers/staging/bcm/PHSModule.c           |  22 ++---
 drivers/staging/bcm/Qos.c                 |  84 +++++++++----------
 drivers/staging/bcm/Transmit.c            |   4 +-
 drivers/staging/bcm/Typedefs.h            |   2 +-
 drivers/staging/bcm/led_control.c         |  30 +++----
 drivers/staging/bcm/nvm.c                 | 134 +++++++++++++++---------------
 21 files changed, 287 insertions(+), 287 deletions(-)

diff --git a/drivers/staging/bcm/Bcmchar.c b/drivers/staging/bcm/Bcmchar.c
index f91bc1fdd895..9d57d0478aa5 100644
--- a/drivers/staging/bcm/Bcmchar.c
+++ b/drivers/staging/bcm/Bcmchar.c
@@ -119,7 +119,7 @@ static ssize_t bcm_char_read(struct file *filp, char __user *buf, size_t size,
 		return -ENODEV;
 	}
 
-	if (FALSE == Adapter->fw_download_done)
+	if (false == Adapter->fw_download_done)
 		return -EACCES;
 
 	down(&Adapter->RxAppControlQueuelock);
@@ -180,7 +180,7 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
 	if (Adapter->device_removed)
 		return -EFAULT;
 
-	if (FALSE == Adapter->fw_download_done) {
+	if (false == Adapter->fw_download_done) {
 		switch (cmd) {
 		case IOCTL_MAC_ADDR_REQ:
 		case IOCTL_LINK_REQ:
@@ -425,7 +425,7 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
 		uiOperation = gpio_info.uiGpioValue;
 		value = (1<<uiBit);
 
-		if (IsReqGpioIsLedInNVM(Adapter, value) == FALSE) {
+		if (IsReqGpioIsLedInNVM(Adapter, value) == false) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, "Sorry, Requested GPIO<0x%X> is not correspond to LED !!!", value);
 			Status = -EINVAL;
 			break;
@@ -572,7 +572,7 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
 		if (copy_from_user(&gpio_multi_info, IoBuffer.InputBuffer, IoBuffer.InputLength))
 			return -EFAULT;
 
-		if (IsReqGpioIsLedInNVM(Adapter, pgpio_multi_info[WIMAX_IDX].uiGPIOMask) == FALSE) {
+		if (IsReqGpioIsLedInNVM(Adapter, pgpio_multi_info[WIMAX_IDX].uiGPIOMask) == false) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
 					"Sorry, Requested GPIO<0x%X> is not correspond to NVM LED bit map<0x%X>!!!",
 					pgpio_multi_info[WIMAX_IDX].uiGPIOMask, Adapter->gpioBitMap);
@@ -665,7 +665,7 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
 		}
 
 		/* Validating the request */
-		if (IsReqGpioIsLedInNVM(Adapter, pgpio_multi_mode[WIMAX_IDX].uiGPIOMask) == FALSE) {
+		if (IsReqGpioIsLedInNVM(Adapter, pgpio_multi_mode[WIMAX_IDX].uiGPIOMask) == false) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
 					"Sorry, Requested GPIO<0x%X> is not correspond to NVM LED bit map<0x%X>!!!",
 					pgpio_multi_mode[WIMAX_IDX].uiGPIOMask, Adapter->gpioBitMap);
@@ -768,10 +768,10 @@ cntrlEnd:
 		if (down_trylock(&Adapter->fw_download_sema))
 			return -EBUSY;
 
-		Adapter->bBinDownloaded = FALSE;
+		Adapter->bBinDownloaded = false;
 		Adapter->fw_download_process_pid = current->pid;
-		Adapter->bCfgDownloaded = FALSE;
-		Adapter->fw_download_done = FALSE;
+		Adapter->bCfgDownloaded = false;
+		Adapter->fw_download_done = false;
 		netif_carrier_off(Adapter->dev);
 		netif_stop_queue(Adapter->dev);
 		Status = reset_card_proc(Adapter);
@@ -848,7 +848,7 @@ cntrlEnd:
 
 			if (Adapter->LEDInfo.led_thread_running & BCM_LED_THREAD_RUNNING_ACTIVELY) {
 				Adapter->DriverState = DRIVER_INIT;
-				Adapter->LEDInfo.bLedInitDone = FALSE;
+				Adapter->LEDInfo.bLedInitDone = false;
 				wake_up(&Adapter->LEDInfo.notify_led_event);
 			}
 		}
@@ -900,7 +900,7 @@ cntrlEnd:
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Unable to send interrupt...\n");
 
 		timeout = 5*HZ;
-		Adapter->waiting_to_fw_download_done = FALSE;
+		Adapter->waiting_to_fw_download_done = false;
 		wait_event_timeout(Adapter->ioctl_fw_dnld_wait_queue,
 				Adapter->waiting_to_fw_download_done, timeout);
 		Adapter->fw_download_process_pid = INVALID_PID;
@@ -1052,7 +1052,7 @@ cntrlEnd:
 		if (tracing_flag)
 			Adapter->pTarangs->MacTracingEnabled = TRUE;
 		else
-			Adapter->pTarangs->MacTracingEnabled = FALSE;
+			Adapter->pTarangs->MacTracingEnabled = false;
 		break;
 	}
 
@@ -1109,7 +1109,7 @@ cntrlEnd:
 	}
 
 	case IOCTL_BCM_WAKE_UP_DEVICE_FROM_IDLE:
-		if ((FALSE == Adapter->bTriedToWakeUpFromlowPowerMode) && (TRUE == Adapter->IdleMode)) {
+		if ((false == Adapter->bTriedToWakeUpFromlowPowerMode) && (TRUE == Adapter->IdleMode)) {
 			Adapter->usIdleModePattern = ABORT_IDLE_MODE;
 			Adapter->bWakeUpDevice = TRUE;
 			wake_up(&Adapter->process_rx_cntrlpkt);
@@ -1168,7 +1168,7 @@ cntrlEnd:
 			break;
 		}
 
-		if (pBulkBuffer->SwapEndian == FALSE)
+		if (pBulkBuffer->SwapEndian == false)
 			Status = wrmWithLock(Adapter, (UINT)pBulkBuffer->Register, (PCHAR)pBulkBuffer->Values, IoBuffer.InputLength - 2*sizeof(ULONG));
 		else
 			Status = wrmaltWithLock(Adapter, (UINT)pBulkBuffer->Register, (PUINT)pBulkBuffer->Values, IoBuffer.InputLength - 2*sizeof(ULONG));
@@ -1387,7 +1387,7 @@ cntrlEnd:
 			if (IsFlash2x(Adapter))
 				BcmFlash2xWriteSig(Adapter, Adapter->eActiveDSD);
 
-			Adapter->bHeaderChangeAllowed = FALSE;
+			Adapter->bHeaderChangeAllowed = false;
 
 			up(&Adapter->NVMRdmWrmLock);
 
@@ -1432,7 +1432,7 @@ cntrlEnd:
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, "\nsFlash2xRead.bVerify :%x\n", sFlash2xRead.bVerify);
 
 		/* This was internal to driver for raw read. now it has ben exposed to user space app. */
-		if (validateFlash2xReadWrite(Adapter, &sFlash2xRead) == FALSE)
+		if (validateFlash2xReadWrite(Adapter, &sFlash2xRead) == false)
 			return STATUS_FAILURE;
 
 		NOB = sFlash2xRead.numOfBytes;
@@ -1510,7 +1510,7 @@ cntrlEnd:
 		}
 
 		/* First make this False so that we can enable the Sector Permission Check in BeceemFlashBulkWrite */
-		Adapter->bAllDSDWriteAllow = FALSE;
+		Adapter->bAllDSDWriteAllow = false;
 
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, "IOCTL_BCM_FLASH2X_SECTION_WRITE Called");
 
@@ -1531,7 +1531,7 @@ cntrlEnd:
 			return -EINVAL;
 		}
 
-		if (validateFlash2xReadWrite(Adapter, &sFlash2xWrite) == FALSE)
+		if (validateFlash2xReadWrite(Adapter, &sFlash2xWrite) == false)
 			return STATUS_FAILURE;
 
 		InputAddr = sFlash2xWrite.pDataBuff;
@@ -1686,7 +1686,7 @@ cntrlEnd:
 
 	case IOCTL_BCM_IDENTIFY_ACTIVE_SECTION: {
 		/* Right Now we are taking care of only DSD */
-		Adapter->bAllDSDWriteAllow = FALSE;
+		Adapter->bAllDSDWriteAllow = false;
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, "IOCTL_BCM_IDENTIFY_ACTIVE_SECTION called");
 		Status = STATUS_SUCCESS;
 	}
@@ -1697,7 +1697,7 @@ cntrlEnd:
 		Status = STATUS_SUCCESS;
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, "IOCTL_BCM_COPY_SECTION  Called");
 
-		Adapter->bAllDSDWriteAllow = FALSE;
+		Adapter->bAllDSDWriteAllow = false;
 		if (IsFlash2x(Adapter) != TRUE) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Flash Does not have 2.x map");
 			return -EINVAL;
@@ -1720,12 +1720,12 @@ cntrlEnd:
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, "offset :%x", sCopySectStrut.offset);
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, "NOB :%x", sCopySectStrut.numOfBytes);
 
-		if (IsSectionExistInFlash(Adapter, sCopySectStrut.SrcSection) == FALSE) {
+		if (IsSectionExistInFlash(Adapter, sCopySectStrut.SrcSection) == false) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Source Section<%x> does not exixt in Flash ", sCopySectStrut.SrcSection);
 			return -EINVAL;
 		}
 
-		if (IsSectionExistInFlash(Adapter, sCopySectStrut.DstSection) == FALSE) {
+		if (IsSectionExistInFlash(Adapter, sCopySectStrut.DstSection) == false) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Destinatio Section<%x> does not exixt in Flash ", sCopySectStrut.DstSection);
 			return -EINVAL;
 		}
@@ -1924,7 +1924,7 @@ cntrlEnd:
 				OutPutBuff = OutPutBuff + ReadBytes;
 			}
 		}
-		Adapter->bFlashRawRead = FALSE;
+		Adapter->bFlashRawRead = false;
 		up(&Adapter->NVMRdmWrmLock);
 		kfree(pReadBuff);
 		break;
diff --git a/drivers/staging/bcm/Bcmnet.c b/drivers/staging/bcm/Bcmnet.c
index a567894753aa..53fee2f9a498 100644
--- a/drivers/staging/bcm/Bcmnet.c
+++ b/drivers/staging/bcm/Bcmnet.c
@@ -6,7 +6,7 @@ static INT bcm_open(struct net_device *dev)
 {
 	struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(dev);
 
-	if (Adapter->fw_download_done == FALSE) {
+	if (Adapter->fw_download_done == false) {
 		pr_notice(PFX "%s: link up failed (download in progress)\n",
 			  dev->name);
 		return -EBUSY;
diff --git a/drivers/staging/bcm/CmHost.c b/drivers/staging/bcm/CmHost.c
index 65fd768f7774..8ec1dd175eba 100644
--- a/drivers/staging/bcm/CmHost.c
+++ b/drivers/staging/bcm/CmHost.c
@@ -256,7 +256,7 @@ static inline VOID CopyClassifierRuleToSF(struct bcm_mini_adapter *Adapter, stru
 	pstClassifierEntry = &Adapter->astClassifierTable[nClassifierIndex];
 	if (pstClassifierEntry) {
 		/* Store if Ipv6 */
-		pstClassifierEntry->bIpv6Protocol = (Adapter->PackInfo[uiSearchRuleIndex].ucIpVersion == IPV6) ? TRUE : FALSE;
+		pstClassifierEntry->bIpv6Protocol = (Adapter->PackInfo[uiSearchRuleIndex].ucIpVersion == IPV6) ? TRUE : false;
 
 		/* Destinaiton Port */
 		pstClassifierEntry->ucDestPortRangeLength = psfCSType->cCPacketClassificationRule.u8ProtocolDestPortRangeLength / 4;
@@ -301,7 +301,7 @@ static inline VOID CopyClassifierRuleToSF(struct bcm_mini_adapter *Adapter, stru
 				psfCSType->cCPacketClassificationRule.u8IPDestinationAddressLength,
 				psfCSType->cCPacketClassificationRule.u8IPDestinationAddress,
 				(Adapter->PackInfo[uiSearchRuleIndex].ucIpVersion == IPV6) ?
-			TRUE : FALSE, eDestIpAddress);
+			TRUE : false, eDestIpAddress);
 
 		/* Source Ip Address and Mask */
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CONN_MSG, DBG_LVL_ALL, "Ip Source Parameters : ");
@@ -309,7 +309,7 @@ static inline VOID CopyClassifierRuleToSF(struct bcm_mini_adapter *Adapter, stru
 		CopyIpAddrToClassifier(pstClassifierEntry,
 				psfCSType->cCPacketClassificationRule.u8IPMaskedSourceAddressLength,
 				psfCSType->cCPacketClassificationRule.u8IPMaskedSourceAddress,
-				(Adapter->PackInfo[uiSearchRuleIndex].ucIpVersion == IPV6) ? TRUE : FALSE,
+				(Adapter->PackInfo[uiSearchRuleIndex].ucIpVersion == IPV6) ? TRUE : false,
 				eSrcIpAddress);
 
 		/* TOS */
@@ -383,7 +383,7 @@ static inline VOID DeleteClassifierRuleFromSF(struct bcm_mini_adapter *Adapter,
 	u16PacketClassificationRuleIndex = Adapter->astClassifierTable[nClassifierIndex].uiClassifierRuleIndex;
 	pstClassifierEntry = &Adapter->astClassifierTable[nClassifierIndex];
 	if (pstClassifierEntry) {
-		pstClassifierEntry->bUsed = FALSE;
+		pstClassifierEntry->bUsed = false;
 		pstClassifierEntry->uiClassifierRuleIndex = 0;
 		memset(pstClassifierEntry, 0, sizeof(struct bcm_classifier_rule));
 
@@ -685,7 +685,7 @@ static VOID CopyToAdapter(register struct bcm_mini_adapter *Adapter, /* <Pointer
 							memcpy(sPhsRule.u8PHSF, psfCSType->cPhsRule.u8PHSF, MAX_PHS_LENGTHS);
 							memcpy(sPhsRule.u8PHSM, psfCSType->cPhsRule.u8PHSM, MAX_PHS_LENGTHS);
 							sPhsRule.u8RefCnt = 0;
-							sPhsRule.bUnclassifiedPHSRule = FALSE;
+							sPhsRule.bUnclassifiedPHSRule = false;
 							sPhsRule.PHSModifiedBytes = 0;
 							sPhsRule.PHSModifiedNumPackets = 0;
 							sPhsRule.PHSErrorNumPackets = 0;
@@ -1577,7 +1577,7 @@ static ULONG GetNextTargetBufferLocation(struct bcm_mini_adapter *Adapter, B_UIN
 	ULONG idx, max_try;
 
 	if ((Adapter->ulTotalTargetBuffersAvailable == 0) || (Adapter->ulFreeTargetBufferCnt == 0)) {
-		ClearTargetDSXBuffer(Adapter, tid, FALSE);
+		ClearTargetDSXBuffer(Adapter, tid, false);
 		return 0;
 	}
 
@@ -1590,7 +1590,7 @@ static ULONG GetNextTargetBufferLocation(struct bcm_mini_adapter *Adapter, B_UIN
 
 	if (max_try == 0) {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "\n GetNextTargetBufferLocation : Error No Free Target DSX Buffers FreeCnt : %lx ", Adapter->ulFreeTargetBufferCnt);
-		ClearTargetDSXBuffer(Adapter, tid, FALSE);
+		ClearTargetDSXBuffer(Adapter, tid, false);
 		return 0;
 	}
 
@@ -1644,9 +1644,9 @@ bool CmControlResponseMessage(struct bcm_mini_adapter *Adapter,  /* <Pointer to
 	 */
 	pstAddIndication = RestoreCmControlResponseMessage(Adapter, pvBuffer);
 	if (pstAddIndication == NULL) {
-		ClearTargetDSXBuffer(Adapter, ((struct bcm_add_indication *)pvBuffer)->u16TID, FALSE);
+		ClearTargetDSXBuffer(Adapter, ((struct bcm_add_indication *)pvBuffer)->u16TID, false);
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Error in restoring Service Flow param structure from DSx message");
-		return FALSE;
+		return false;
 	}
 
 	DumpCmControlPacket(pstAddIndication);
@@ -1656,7 +1656,7 @@ bool CmControlResponseMessage(struct bcm_mini_adapter *Adapter,  /* <Pointer to
 	pLeader->Status = CM_CONTROL_NEWDSX_MULTICLASSIFIER_REQ;
 	pLeader->Vcid = 0;
 
-	ClearTargetDSXBuffer(Adapter, pstAddIndication->u16TID, FALSE);
+	ClearTargetDSXBuffer(Adapter, pstAddIndication->u16TID, false);
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "### TID RECEIVED %d\n", pstAddIndication->u16TID);
 	switch (pstAddIndication->u8Type) {
 	case DSA_REQ:
@@ -1708,9 +1708,9 @@ bool CmControlResponseMessage(struct bcm_mini_adapter *Adapter,  /* <Pointer to
 			if (pstAddIndication->sfAdmittedSet.bValid == TRUE)
 				Adapter->PackInfo[uiSearchRuleIndex].bAdmittedSet = TRUE;
 
-			if (pstAddIndication->sfActiveSet.bValid == FALSE) {
-				Adapter->PackInfo[uiSearchRuleIndex].bActive = FALSE;
-				Adapter->PackInfo[uiSearchRuleIndex].bActivateRequestSent = FALSE;
+			if (pstAddIndication->sfActiveSet.bValid == false) {
+				Adapter->PackInfo[uiSearchRuleIndex].bActive = false;
+				Adapter->PackInfo[uiSearchRuleIndex].bActivateRequestSent = false;
 				if (pstAddIndication->sfAdmittedSet.bValid)
 					psfLocalSet = &pstAddIndication->sfAdmittedSet;
 				else if (pstAddIndication->sfAuthorizedSet.bValid)
@@ -1722,8 +1722,8 @@ bool CmControlResponseMessage(struct bcm_mini_adapter *Adapter,  /* <Pointer to
 
 			if (!psfLocalSet) {
 				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "No set is valid\n");
-				Adapter->PackInfo[uiSearchRuleIndex].bActive = FALSE;
-				Adapter->PackInfo[uiSearchRuleIndex].bValid = FALSE;
+				Adapter->PackInfo[uiSearchRuleIndex].bActive = false;
+				Adapter->PackInfo[uiSearchRuleIndex].bValid = false;
 				Adapter->PackInfo[uiSearchRuleIndex].usVCID_Value = 0;
 				kfree(pstAddIndication);
 			} else if (psfLocalSet->bValid && (pstAddIndication->u8CC == 0)) {
@@ -1759,15 +1759,15 @@ bool CmControlResponseMessage(struct bcm_mini_adapter *Adapter,  /* <Pointer to
 					}
 				}
 			} else {
-				Adapter->PackInfo[uiSearchRuleIndex].bActive = FALSE;
-				Adapter->PackInfo[uiSearchRuleIndex].bValid = FALSE;
+				Adapter->PackInfo[uiSearchRuleIndex].bActive = false;
+				Adapter->PackInfo[uiSearchRuleIndex].bValid = false;
 				Adapter->PackInfo[uiSearchRuleIndex].usVCID_Value = 0;
 				kfree(pstAddIndication);
 			}
 		} else {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "DSA ACK did not get valid SFID");
 			kfree(pstAddIndication);
-			return FALSE;
+			return false;
 		}
 	}
 	break;
@@ -1812,9 +1812,9 @@ bool CmControlResponseMessage(struct bcm_mini_adapter *Adapter,  /* <Pointer to
 			if (pstChangeIndication->sfAdmittedSet.bValid == TRUE)
 				Adapter->PackInfo[uiSearchRuleIndex].bAdmittedSet = TRUE;
 
-			if (pstChangeIndication->sfActiveSet.bValid == FALSE) {
-				Adapter->PackInfo[uiSearchRuleIndex].bActive = FALSE;
-				Adapter->PackInfo[uiSearchRuleIndex].bActivateRequestSent = FALSE;
+			if (pstChangeIndication->sfActiveSet.bValid == false) {
+				Adapter->PackInfo[uiSearchRuleIndex].bActive = false;
+				Adapter->PackInfo[uiSearchRuleIndex].bActivateRequestSent = false;
 
 				if (pstChangeIndication->sfAdmittedSet.bValid)
 					psfLocalSet = &pstChangeIndication->sfAdmittedSet;
@@ -1827,8 +1827,8 @@ bool CmControlResponseMessage(struct bcm_mini_adapter *Adapter,  /* <Pointer to
 
 			if (!psfLocalSet) {
 				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "No set is valid\n");
-				Adapter->PackInfo[uiSearchRuleIndex].bActive = FALSE;
-				Adapter->PackInfo[uiSearchRuleIndex].bValid = FALSE;
+				Adapter->PackInfo[uiSearchRuleIndex].bActive = false;
+				Adapter->PackInfo[uiSearchRuleIndex].bValid = false;
 				Adapter->PackInfo[uiSearchRuleIndex].usVCID_Value = 0;
 				kfree(pstAddIndication);
 			} else if (psfLocalSet->bValid && (pstChangeIndication->u8CC == 0)) {
@@ -1847,7 +1847,7 @@ bool CmControlResponseMessage(struct bcm_mini_adapter *Adapter,  /* <Pointer to
 		} else {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "DSC ACK did not get valid SFID");
 			kfree(pstAddIndication);
-			return FALSE;
+			return false;
 		}
 	}
 	break;
@@ -1883,7 +1883,7 @@ bool CmControlResponseMessage(struct bcm_mini_adapter *Adapter,  /* <Pointer to
 		break;
 	default:
 		kfree(pstAddIndication);
-		return FALSE;
+		return false;
 	}
 	return TRUE;
 }
@@ -1934,13 +1934,13 @@ VOID OverrideServiceFlowParams(struct bcm_mini_adapter *Adapter, PUINT puiBuffer
 			continue;
 		}
 
-		if (pHostInfo->RetainSF == FALSE) {
+		if (pHostInfo->RetainSF == false) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CONN_MSG, DBG_LVL_ALL, "Going to Delete SF");
 			deleteSFBySfid(Adapter, uiSearchRuleIndex);
 		} else {
 			Adapter->PackInfo[uiSearchRuleIndex].usVCID_Value = ntohs(pHostInfo->VCID);
 			Adapter->PackInfo[uiSearchRuleIndex].usCID = ntohs(pHostInfo->newCID);
-			Adapter->PackInfo[uiSearchRuleIndex].bActive = FALSE;
+			Adapter->PackInfo[uiSearchRuleIndex].bActive = false;
 
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CONN_MSG, DBG_LVL_ALL, "pHostInfo->QoSParamSet: 0x%x\n", pHostInfo->QoSParamSet);
 
diff --git a/drivers/staging/bcm/DDRInit.c b/drivers/staging/bcm/DDRInit.c
index f9cd7ac0b9e8..9f7e30f637ea 100644
--- a/drivers/staging/bcm/DDRInit.c
+++ b/drivers/staging/bcm/DDRInit.c
@@ -1106,7 +1106,7 @@ int download_ddr_settings(struct bcm_mini_adapter *Adapter)
 	unsigned long ul_ddr_setting_load_addr = DDR_DUMP_INTERNAL_DEVICE_MEMORY;
 	UINT  value = 0;
 	int retval = STATUS_SUCCESS;
-	bool bOverrideSelfRefresh = FALSE;
+	bool bOverrideSelfRefresh = false;
 
 	switch (Adapter->chip_id)
 	{
diff --git a/drivers/staging/bcm/HandleControlPacket.c b/drivers/staging/bcm/HandleControlPacket.c
index 48119ee5aeaa..495fe3dc5148 100644
--- a/drivers/staging/bcm/HandleControlPacket.c
+++ b/drivers/staging/bcm/HandleControlPacket.c
@@ -14,7 +14,7 @@
 static VOID handle_rx_control_packet(struct bcm_mini_adapter *Adapter, struct sk_buff *skb)
 {
 	struct bcm_tarang_data *pTarang = NULL;
-	bool HighPriorityMessage = FALSE;
+	bool HighPriorityMessage = false;
 	struct sk_buff *newPacket = NULL;
 	CHAR cntrl_msg_mask_bit = 0;
 	bool drop_pkt_flag = TRUE;
@@ -91,13 +91,13 @@ static VOID handle_rx_control_packet(struct bcm_mini_adapter *Adapter, struct sk
 		 *	cntrl_msg_mask_bit);
 		 */
 		if (pTarang->RxCntrlMsgBitMask & (1 << cntrl_msg_mask_bit))
-			drop_pkt_flag = FALSE;
+			drop_pkt_flag = false;
 
 		if ((drop_pkt_flag == TRUE) ||
 				(pTarang->AppCtrlQueueLen > MAX_APP_QUEUE_LEN)
 				|| ((pTarang->AppCtrlQueueLen >
 					MAX_APP_QUEUE_LEN / 2) &&
-				    (HighPriorityMessage == FALSE))) {
+				    (HighPriorityMessage == false))) {
 			/*
 			 * Assumption:-
 			 * 1. every tarang manages it own dropped pkt
@@ -175,8 +175,8 @@ int control_packet_handler(struct bcm_mini_adapter *Adapter /* pointer to adapte
 			return 0;
 		}
 		if (TRUE == Adapter->bWakeUpDevice) {
-			Adapter->bWakeUpDevice = FALSE;
-			if ((FALSE == Adapter->bTriedToWakeUpFromlowPowerMode)
+			Adapter->bWakeUpDevice = false;
+			if ((false == Adapter->bTriedToWakeUpFromlowPowerMode)
 					&& ((TRUE == Adapter->IdleMode) ||
 					    (TRUE == Adapter->bShutStatus))) {
 				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS,
diff --git a/drivers/staging/bcm/IPv6Protocol.c b/drivers/staging/bcm/IPv6Protocol.c
index 4168fd012758..f48c9c42fb13 100644
--- a/drivers/staging/bcm/IPv6Protocol.c
+++ b/drivers/staging/bcm/IPv6Protocol.c
@@ -29,7 +29,7 @@ static UCHAR *GetNextIPV6ChainedHeader(UCHAR **ppucPayload,
 	}
 
 	/* Get the Nextt Header Type */
-	*bParseDone = FALSE;
+	*bParseDone = false;
 
 
 	switch (*pucNextHeader) {
@@ -124,7 +124,7 @@ static UCHAR *GetNextIPV6ChainedHeader(UCHAR **ppucPayload,
 
 	}
 
-	if (*bParseDone == FALSE) {
+	if (*bParseDone == false) {
 		if (*pusPayloadLength <= usNextHeaderOffset) {
 			*bParseDone = TRUE;
 		} else {
@@ -144,7 +144,7 @@ static UCHAR GetIpv6ProtocolPorts(UCHAR *pucPayload, USHORT *pusSrcPort,
 	USHORT *pusDestPort, USHORT usPayloadLength, UCHAR ucNextHeader)
 {
 	UCHAR *pIpv6HdrScanContext = pucPayload;
-	bool bDone = FALSE;
+	bool bDone = false;
 	UCHAR ucHeaderType = 0;
 	UCHAR *pucNextHeader = NULL;
 	struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
@@ -187,7 +187,7 @@ USHORT	IpVersion6(struct bcm_mini_adapter *Adapter, PVOID pcIpHeader,
 	USHORT	ushSrcPort = 0;
 	UCHAR   ucNextProtocolAboveIP = 0;
 	struct bcm_ipv6_hdr *pstIpv6Header = NULL;
-	bool bClassificationSucceed = FALSE;
+	bool bClassificationSucceed = false;
 
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
 			DBG_LVL_ALL, "IpVersion6 ==========>\n");
@@ -277,10 +277,10 @@ USHORT	IpVersion6(struct bcm_mini_adapter *Adapter, PVOID pcIpHeader,
 		INT iMatchedSFQueueIndex = 0;
 		iMatchedSFQueueIndex = SearchSfid(Adapter, pstClassifierRule->ulSFID);
 		if (iMatchedSFQueueIndex >= NO_OF_QUEUES) {
-			bClassificationSucceed = FALSE;
+			bClassificationSucceed = false;
 		} else {
-			if (Adapter->PackInfo[iMatchedSFQueueIndex].bActive == FALSE)
-				bClassificationSucceed = FALSE;
+			if (Adapter->PackInfo[iMatchedSFQueueIndex].bActive == false)
+				bClassificationSucceed = false;
 		}
 	}
 
@@ -341,7 +341,7 @@ static bool MatchSrcIpv6Address(struct bcm_classifier_rule *pstClassifierRule,
 			}
 		}
 	}
-	return FALSE;
+	return false;
 }
 
 static bool MatchDestIpv6Address(struct bcm_classifier_rule *pstClassifierRule,
@@ -398,7 +398,7 @@ static bool MatchDestIpv6Address(struct bcm_classifier_rule *pstClassifierRule,
 			}
 		}
 	}
-	return FALSE;
+	return false;
 
 }
 
diff --git a/drivers/staging/bcm/InterfaceDld.c b/drivers/staging/bcm/InterfaceDld.c
index 348ad75b340d..d02b7d67c854 100644
--- a/drivers/staging/bcm/InterfaceDld.c
+++ b/drivers/staging/bcm/InterfaceDld.c
@@ -166,7 +166,7 @@ static int bcm_download_config_file(struct bcm_mini_adapter *Adapter, struct bcm
 	}
 
 	if (Adapter->LEDInfo.led_thread_running & BCM_LED_THREAD_RUNNING_ACTIVELY) {
-		Adapter->LEDInfo.bLedInitDone = FALSE;
+		Adapter->LEDInfo.bLedInitDone = false;
 		Adapter->DriverState = DRIVER_INIT;
 		wake_up(&Adapter->LEDInfo.notify_led_event);
 	}
@@ -214,7 +214,7 @@ int bcm_ioctl_fw_download(struct bcm_mini_adapter *Adapter, struct bcm_firmware_
 	 * Firmware. Check for the Config file to be first to be sent from the
 	 * Application
 	 */
-	atomic_set(&Adapter->uiMBupdate, FALSE);
+	atomic_set(&Adapter->uiMBupdate, false);
 	if (!Adapter->bCfgDownloaded && psFwInfo->u32StartingAddress != CONFIG_BEGIN_ADDR) {
 		/* Can't Download Firmware. */
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "Download the config File first\n");
diff --git a/drivers/staging/bcm/InterfaceIdleMode.c b/drivers/staging/bcm/InterfaceIdleMode.c
index 534782866042..5959fbdcd1be 100644
--- a/drivers/staging/bcm/InterfaceIdleMode.c
+++ b/drivers/staging/bcm/InterfaceIdleMode.c
@@ -89,8 +89,8 @@ int InterfaceIdleModeRespond(struct bcm_mini_adapter *Adapter, unsigned int *pui
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL, "Device Up from Idle Mode");
 
 			/* Set Idle Mode Flag to False and Clear IdleMode reg. */
-			Adapter->IdleMode = FALSE;
-			Adapter->bTriedToWakeUpFromlowPowerMode = FALSE;
+			Adapter->IdleMode = false;
+			Adapter->bTriedToWakeUpFromlowPowerMode = false;
 
 			wake_up(&Adapter->lowpower_mode_wait_queue);
 
diff --git a/drivers/staging/bcm/InterfaceInit.c b/drivers/staging/bcm/InterfaceInit.c
index e95d4b53e721..3acdb58a10f5 100644
--- a/drivers/staging/bcm/InterfaceInit.c
+++ b/drivers/staging/bcm/InterfaceInit.c
@@ -332,7 +332,7 @@ static int device_run(struct bcm_interface_adapter *psIntfAdapter)
 		 * now register the cntrl interface.
 		 * after downloading the f/w waiting for 5 sec to get the mailbox interrupt.
 		 */
-		psIntfAdapter->psAdapter->waiting_to_fw_download_done = FALSE;
+		psIntfAdapter->psAdapter->waiting_to_fw_download_done = false;
 		value = wait_event_timeout(psIntfAdapter->psAdapter->ioctl_fw_dnld_wait_queue,
 					psIntfAdapter->psAdapter->waiting_to_fw_download_done, 5*HZ);
 
@@ -430,7 +430,7 @@ static int InterfaceAdapterInit(struct bcm_interface_adapter *psIntfAdapter)
 	unsigned long value;
 	int retval = 0;
 	int usedIntOutForBulkTransfer = 0 ;
-	bool bBcm16 = FALSE;
+	bool bBcm16 = false;
 	UINT uiData = 0;
 	int bytes;
 
@@ -472,7 +472,7 @@ static int InterfaceAdapterInit(struct bcm_interface_adapter *psIntfAdapter)
 				retval = usb_set_interface(psIntfAdapter->udev, DEFAULT_SETTING_0, ALTERNATE_SETTING_1);
 			BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 				"BCM16 is applicable on this dongle\n");
-			if (retval || (psIntfAdapter->bHighSpeedDevice == FALSE)) {
+			if (retval || (psIntfAdapter->bHighSpeedDevice == false)) {
 				usedIntOutForBulkTransfer = EP2 ;
 				endpoint = &iface_desc->endpoint[EP2].desc;
 				BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
@@ -481,8 +481,8 @@ static int InterfaceAdapterInit(struct bcm_interface_adapter *psIntfAdapter)
 				 * If Modem is high speed device EP2 should be INT OUT End point
 				 * If Mode is FS then EP2 should be bulk end point
 				 */
-				if (((psIntfAdapter->bHighSpeedDevice == TRUE) && (bcm_usb_endpoint_is_int_out(endpoint) == FALSE))
-					|| ((psIntfAdapter->bHighSpeedDevice == FALSE) && (bcm_usb_endpoint_is_bulk_out(endpoint) == FALSE))) {
+				if (((psIntfAdapter->bHighSpeedDevice == TRUE) && (bcm_usb_endpoint_is_int_out(endpoint) == false))
+					|| ((psIntfAdapter->bHighSpeedDevice == false) && (bcm_usb_endpoint_is_bulk_out(endpoint) == false))) {
 					BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 						"Configuring the EEPROM\n");
 					/* change the EP2, EP4 to INT OUT end point */
@@ -501,7 +501,7 @@ static int InterfaceAdapterInit(struct bcm_interface_adapter *psIntfAdapter)
 					}
 
 				}
-				if ((psIntfAdapter->bHighSpeedDevice == FALSE) && bcm_usb_endpoint_is_bulk_out(endpoint)) {
+				if ((psIntfAdapter->bHighSpeedDevice == false) && bcm_usb_endpoint_is_bulk_out(endpoint)) {
 					/* Once BULK is selected in FS mode. Revert it back to INT. Else USB_IF will fail. */
 					UINT _uiData = ntohl(EP2_CFG_INT);
 					BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
@@ -513,7 +513,7 @@ static int InterfaceAdapterInit(struct bcm_interface_adapter *psIntfAdapter)
 				endpoint = &iface_desc->endpoint[EP4].desc;
 				BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 					"Choosing AltSetting as a default setting.\n");
-				if (bcm_usb_endpoint_is_int_out(endpoint) == FALSE) {
+				if (bcm_usb_endpoint_is_int_out(endpoint) == false) {
 					BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 						"Dongle does not have BCM16 Fix.\n");
 					/* change the EP2, EP4 to INT OUT end point and use EP4 in altsetting */
@@ -619,7 +619,7 @@ static int InterfaceSuspend(struct usb_interface *intf, pm_message_t message)
 	psIntfAdapter->bSuspended = TRUE;
 
 	if (TRUE == psIntfAdapter->bPreparingForBusSuspend) {
-		psIntfAdapter->bPreparingForBusSuspend = FALSE;
+		psIntfAdapter->bPreparingForBusSuspend = false;
 
 		if (psIntfAdapter->psAdapter->LinkStatus == LINKUP_DONE) {
 			psIntfAdapter->psAdapter->IdleMode = TRUE ;
@@ -631,7 +631,7 @@ static int InterfaceSuspend(struct usb_interface *intf, pm_message_t message)
 				"Host Entered in PMU Shutdown Mode.\n");
 		}
 	}
-	psIntfAdapter->psAdapter->bPreparingForLowPowerMode = FALSE;
+	psIntfAdapter->psAdapter->bPreparingForLowPowerMode = false;
 
 	/* Signaling the control pkt path */
 	wake_up(&psIntfAdapter->psAdapter->lowpower_mode_wait_queue);
@@ -644,7 +644,7 @@ static int InterfaceResume(struct usb_interface *intf)
 	struct bcm_interface_adapter *psIntfAdapter = usb_get_intfdata(intf);
 
 	mdelay(100);
-	psIntfAdapter->bSuspended = FALSE;
+	psIntfAdapter->bSuspended = false;
 
 	StartInterruptUrb(psIntfAdapter);
 	InterfaceRx(psIntfAdapter);
diff --git a/drivers/staging/bcm/InterfaceIsr.c b/drivers/staging/bcm/InterfaceIsr.c
index 8322f1b76e2a..7b39f4f5f1ab 100644
--- a/drivers/staging/bcm/InterfaceIsr.c
+++ b/drivers/staging/bcm/InterfaceIsr.c
@@ -60,7 +60,7 @@ static void read_int_callback(struct urb *urb/*, struct pt_regs *regs*/)
 				psIntfAdapter->psAdapter->downloadDDR +=1;
 				wake_up(&Adapter->tx_packet_wait_queue);
 			}
-			if(FALSE == Adapter->waiting_to_fw_download_done)
+			if(false == Adapter->waiting_to_fw_download_done)
 			{
 				Adapter->waiting_to_fw_download_done = TRUE;
 				wake_up(&Adapter->ioctl_fw_dnld_wait_queue);
@@ -147,11 +147,11 @@ INT StartInterruptUrb(struct bcm_interface_adapter *psIntfAdapter)
 {
 	INT status = 0;
 
-	if( FALSE == psIntfAdapter->psAdapter->device_removed &&
-		FALSE == psIntfAdapter->psAdapter->bEndPointHalted &&
-		FALSE == psIntfAdapter->bSuspended &&
-		FALSE == psIntfAdapter->bPreparingForBusSuspend &&
-		FALSE == psIntfAdapter->psAdapter->StopAllXaction)
+	if( false == psIntfAdapter->psAdapter->device_removed &&
+		false == psIntfAdapter->psAdapter->bEndPointHalted &&
+		false == psIntfAdapter->bSuspended &&
+		false == psIntfAdapter->bPreparingForBusSuspend &&
+		false == psIntfAdapter->psAdapter->StopAllXaction)
 	{
 		status = usb_submit_urb(psIntfAdapter->psInterruptUrb, GFP_ATOMIC);
 		if (status)
diff --git a/drivers/staging/bcm/InterfaceMisc.c b/drivers/staging/bcm/InterfaceMisc.c
index d9fa2bb03e11..4173fd7d671c 100644
--- a/drivers/staging/bcm/InterfaceMisc.c
+++ b/drivers/staging/bcm/InterfaceMisc.c
@@ -44,7 +44,7 @@ int InterfaceRDM(struct bcm_interface_adapter *psIntfAdapter,
 	else
 		BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_OTHERS, RDM, DBG_LVL_ALL, "RDM sent %d", bytes);
 
-	psIntfAdapter->psAdapter->DeviceAccess = FALSE;
+	psIntfAdapter->psAdapter->DeviceAccess = false;
 	return bytes;
 }
 
@@ -90,10 +90,10 @@ int InterfaceWRM(struct bcm_interface_adapter *psIntfAdapter,
 
 	if (retval < 0)	{
 		BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_OTHERS, WRM, DBG_LVL_ALL, "WRM failed status :%d", retval);
-		psIntfAdapter->psAdapter->DeviceAccess = FALSE;
+		psIntfAdapter->psAdapter->DeviceAccess = false;
 		return retval;
 	} else {
-		psIntfAdapter->psAdapter->DeviceAccess = FALSE;
+		psIntfAdapter->psAdapter->DeviceAccess = false;
 		BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_OTHERS, WRM, DBG_LVL_ALL, "WRM sent %d", retval);
 		return STATUS_SUCCESS;
 	}
@@ -211,7 +211,7 @@ void putUsbSuspend(struct work_struct *work)
 	psIntfAdapter = container_of(work, struct bcm_interface_adapter, usbSuspendWork);
 	intf = psIntfAdapter->interface;
 
-	if (psIntfAdapter->bSuspended == FALSE)
+	if (psIntfAdapter->bSuspended == false)
 		usb_autopm_put_interface(intf);
 }
 
diff --git a/drivers/staging/bcm/InterfaceRx.c b/drivers/staging/bcm/InterfaceRx.c
index 1bbca9987330..f2973f5e503a 100644
--- a/drivers/staging/bcm/InterfaceRx.c
+++ b/drivers/staging/bcm/InterfaceRx.c
@@ -19,7 +19,7 @@ GetBulkInRcb(struct bcm_interface_adapter *psIntfAdapter)
 	UINT index = 0;
 
 	if((atomic_read(&psIntfAdapter->uNumRcbUsed) < MAXIMUM_USB_RCB) &&
-		(psIntfAdapter->psAdapter->StopAllXaction == FALSE))
+		(psIntfAdapter->psAdapter->StopAllXaction == false))
 	{
 		index = atomic_read(&psIntfAdapter->uCurrRcb);
 		pRcb = &psIntfAdapter->asUsbRcb[index];
@@ -38,7 +38,7 @@ GetBulkInRcb(struct bcm_interface_adapter *psIntfAdapter)
 static void read_bulk_callback(struct urb *urb)
 {
 	struct sk_buff *skb = NULL;
-	bool bHeaderSupressionEnabled = FALSE;
+	bool bHeaderSupressionEnabled = false;
 	int QueueIndex = NO_OF_QUEUES + 1;
 	UINT uiIndex=0;
 	int process_done = 1;
@@ -57,7 +57,7 @@ static void read_bulk_callback(struct urb *urb)
 		(0 == urb->actual_length)
 		)
 	{
-	 	pRcb->bUsed = FALSE;
+	 	pRcb->bUsed = false;
  		atomic_dec(&psIntfAdapter->uNumRcbUsed);
 		return;
 	}
@@ -73,7 +73,7 @@ static void read_bulk_callback(struct urb *urb)
 		{
 			BCM_DEBUG_PRINT(Adapter,DBG_TYPE_RX, RX_DPC, DBG_LVL_ALL,"Rx URB has got cancelled. status :%d", urb->status);
 		}
-		pRcb->bUsed = FALSE;
+		pRcb->bUsed = false;
  		atomic_dec(&psIntfAdapter->uNumRcbUsed);
 		urb->status = STATUS_SUCCESS ;
 		return ;
@@ -192,7 +192,7 @@ static void read_bulk_callback(struct urb *urb)
 		}
 	}
  	Adapter->PrevNumRecvDescs++;
-	pRcb->bUsed = FALSE;
+	pRcb->bUsed = false;
 	atomic_dec(&psIntfAdapter->uNumRcbUsed);
 }
 
@@ -205,10 +205,10 @@ static int ReceiveRcb(struct bcm_interface_adapter *psIntfAdapter, struct bcm_us
 			psIntfAdapter->udev, psIntfAdapter->sBulkIn.bulk_in_endpointAddr),
 		  	urb->transfer_buffer, BCM_USB_MAX_READ_LENGTH, read_bulk_callback,
 			pRcb);
-	if(FALSE == psIntfAdapter->psAdapter->device_removed &&
-	   FALSE == psIntfAdapter->psAdapter->bEndPointHalted &&
-	   FALSE == psIntfAdapter->bSuspended &&
-	   FALSE == psIntfAdapter->bPreparingForBusSuspend)
+	if(false == psIntfAdapter->psAdapter->device_removed &&
+	   false == psIntfAdapter->psAdapter->bEndPointHalted &&
+	   false == psIntfAdapter->bSuspended &&
+	   false == psIntfAdapter->bPreparingForBusSuspend)
 	{
 		retval = usb_submit_urb(urb, GFP_ATOMIC);
 		if (retval)
@@ -253,7 +253,7 @@ bool InterfaceRx (struct bcm_interface_adapter *psIntfAdapter)
 		if(pRcb == NULL)
 		{
 			BCM_DEBUG_PRINT(psIntfAdapter->psAdapter,DBG_TYPE_PRINTK, 0, 0, "Unable to get Rcb pointer");
-			return FALSE;
+			return false;
 		}
 		//atomic_inc(&psIntfAdapter->uNumRcbUsed);
 		ReceiveRcb(psIntfAdapter, pRcb);
diff --git a/drivers/staging/bcm/InterfaceTx.c b/drivers/staging/bcm/InterfaceTx.c
index f7a0f9aa8a3c..3457954d0982 100644
--- a/drivers/staging/bcm/InterfaceTx.c
+++ b/drivers/staging/bcm/InterfaceTx.c
@@ -7,7 +7,7 @@ static void write_bulk_callback(struct urb *urb/*, struct pt_regs *regs*/)
 	struct bcm_interface_adapter *psIntfAdapter = pTcb->psIntfAdapter;
 	struct bcm_link_request *pControlMsg = (struct bcm_link_request *)urb->transfer_buffer;
 	struct bcm_mini_adapter *psAdapter = psIntfAdapter->psAdapter ;
-	bool bpowerDownMsg = FALSE ;
+	bool bpowerDownMsg = false ;
 	struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
 
     if (unlikely(netif_msg_tx_done(Adapter)))
@@ -26,7 +26,7 @@ static void write_bulk_callback(struct urb *urb/*, struct pt_regs *regs*/)
 		}
 	}
 
-	pTcb->bUsed = FALSE;
+	pTcb->bUsed = false;
 	atomic_dec(&psIntfAdapter->uNumTcbUsed);
 
 
@@ -42,7 +42,7 @@ static void write_bulk_callback(struct urb *urb/*, struct pt_regs *regs*/)
 			//This covers the bus err while Idle Request msg sent down.
 			if(urb->status != STATUS_SUCCESS)
 			{
-				psAdapter->bPreparingForLowPowerMode = FALSE ;
+				psAdapter->bPreparingForLowPowerMode = false ;
 				BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, NEXT_SEND, DBG_LVL_ALL,"Idle Mode Request msg failed to reach to Modem");
 				//Signalling the cntrl pkt path in Ioctl
 				wake_up(&psAdapter->lowpower_mode_wait_queue);
@@ -50,11 +50,11 @@ static void write_bulk_callback(struct urb *urb/*, struct pt_regs *regs*/)
 				goto err_exit;
 			}
 
-			if(psAdapter->bDoSuspend == FALSE)
+			if(psAdapter->bDoSuspend == false)
 			{
 				psAdapter->IdleMode = TRUE;
 				//since going in Idle mode completed hence making this var false;
-				psAdapter->bPreparingForLowPowerMode = FALSE ;
+				psAdapter->bPreparingForLowPowerMode = false ;
 
 				BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, NEXT_SEND, DBG_LVL_ALL, "Host Entered in Idle Mode State...");
 				//Signalling the cntrl pkt path in Ioctl
@@ -70,7 +70,7 @@ static void write_bulk_callback(struct urb *urb/*, struct pt_regs *regs*/)
 			//This covers the bus err while shutdown Request msg sent down.
 			if(urb->status != STATUS_SUCCESS)
 			{
-				psAdapter->bPreparingForLowPowerMode = FALSE ;
+				psAdapter->bPreparingForLowPowerMode = false ;
 				BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, NEXT_SEND, DBG_LVL_ALL,"Shutdown Request Msg failed to reach to Modem");
 				//Signalling the cntrl pkt path in Ioctl
 				wake_up(&psAdapter->lowpower_mode_wait_queue);
@@ -79,11 +79,11 @@ static void write_bulk_callback(struct urb *urb/*, struct pt_regs *regs*/)
 			}
 
 			bpowerDownMsg = TRUE ;
-			if(psAdapter->bDoSuspend == FALSE)
+			if(psAdapter->bDoSuspend == false)
 			{
 				psAdapter->bShutStatus = TRUE;
 				//since going in shutdown mode completed hence making this var false;
-				psAdapter->bPreparingForLowPowerMode = FALSE ;
+				psAdapter->bPreparingForLowPowerMode = false ;
 				BCM_DEBUG_PRINT(Adapter,DBG_TYPE_TX, NEXT_SEND, DBG_LVL_ALL,"Host Entered in shutdown Mode State...");
 				//Signalling the cntrl pkt path in Ioctl
 				wake_up(&psAdapter->lowpower_mode_wait_queue);
@@ -113,7 +113,7 @@ static struct bcm_usb_tcb *GetBulkOutTcb(struct bcm_interface_adapter *psIntfAda
 	UINT index = 0;
 
 	if((atomic_read(&psIntfAdapter->uNumTcbUsed) < MAXIMUM_USB_TCB) &&
-		(psIntfAdapter->psAdapter->StopAllXaction ==FALSE))
+		(psIntfAdapter->psAdapter->StopAllXaction ==false))
 	{
 		index = atomic_read(&psIntfAdapter->uCurrTcb);
 		pTcb = &psIntfAdapter->asUsbTcb[index];
@@ -161,10 +161,10 @@ static int TransmitTcb(struct bcm_interface_adapter *psIntfAdapter, struct bcm_u
 	}
 	urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; /* For DMA transfer */
 
-	if(FALSE == psIntfAdapter->psAdapter->device_removed &&
-	   FALSE == psIntfAdapter->psAdapter->bEndPointHalted &&
-	   FALSE == psIntfAdapter->bSuspended &&
-	   FALSE == psIntfAdapter->bPreparingForBusSuspend)
+	if(false == psIntfAdapter->psAdapter->device_removed &&
+	   false == psIntfAdapter->psAdapter->bEndPointHalted &&
+	   false == psIntfAdapter->bSuspended &&
+	   false == psIntfAdapter->bPreparingForBusSuspend)
 	{
 		retval = usb_submit_urb(urb, GFP_ATOMIC);
 		if (retval)
diff --git a/drivers/staging/bcm/LeakyBucket.c b/drivers/staging/bcm/LeakyBucket.c
index 0236f81059c8..f95b06713a28 100644
--- a/drivers/staging/bcm/LeakyBucket.c
+++ b/drivers/staging/bcm/LeakyBucket.c
@@ -82,7 +82,7 @@ static ULONG GetSFTokenCount(struct bcm_mini_adapter *Adapter, struct bcm_packet
 		return 0;
 	}
 
-	if (FALSE != psSF->bValid && psSF->ucDirection) {
+	if (false != psSF->bValid && psSF->ucDirection) {
 		if (0 != psSF->uiCurrentTokenCount) {
 				return psSF->uiCurrentTokenCount;
 		} else {
@@ -188,7 +188,7 @@ static VOID CheckAndSendPacketFromIndex(struct bcm_mini_adapter *Adapter, struct
 				spin_unlock_bh(&psSF->SFQueueLock);
 
 				Status = SendPacketFromQueue(Adapter, psSF, QueuePacket);
-				psSF->uiPendedLast = FALSE;
+				psSF->uiPendedLast = false;
 			} else {
 				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, TX_PACKETS, DBG_LVL_ALL, "For Queue: %zd\n", psSF-Adapter->PackInfo);
 				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, TX_PACKETS, DBG_LVL_ALL, "\nAvailable Tokens = %d required = %d\n",
@@ -299,7 +299,7 @@ VOID transmit_packets(struct bcm_mini_adapter *Adapter)
 				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, TX_PACKETS, DBG_LVL_ALL, "Calling CheckAndSendPacketFromIndex..");
 				CheckAndSendPacketFromIndex(Adapter, &Adapter->PackInfo[iIndex]);
 				uiPrevTotalCount--;
-				exit_flag = FALSE;
+				exit_flag = false;
 			}
 		}
 
diff --git a/drivers/staging/bcm/Misc.c b/drivers/staging/bcm/Misc.c
index 4cfc2c33c696..7b2fa0f4a2e4 100644
--- a/drivers/staging/bcm/Misc.c
+++ b/drivers/staging/bcm/Misc.c
@@ -53,7 +53,7 @@ int InitAdapter(struct bcm_mini_adapter *psAdapter)
 	init_waitqueue_head(&psAdapter->ioctl_fw_dnld_wait_queue);
 	init_waitqueue_head(&psAdapter->lowpower_mode_wait_queue);
 	psAdapter->waiting_to_fw_download_done = TRUE;
-	psAdapter->fw_download_done = FALSE;
+	psAdapter->fw_download_done = false;
 
 	default_wimax_protocol_initialize(psAdapter);
 	for (i = 0; i < MAX_CNTRL_PKTS; i++) {
@@ -255,7 +255,7 @@ int CopyBufferToControlPacket(struct bcm_mini_adapter *Adapter, void *ioBuffer)
 
 		if (Adapter->bShutStatus == TRUE) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "SYNC UP IN SHUTDOWN..Device WakeUp\n");
-			if (Adapter->bTriedToWakeUpFromlowPowerMode == FALSE) {
+			if (Adapter->bTriedToWakeUpFromlowPowerMode == false) {
 				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, "Waking up for the First Time..\n");
 				Adapter->usIdleModePattern = ABORT_SHUTDOWN_MODE; /* change it to 1 for current support. */
 				Adapter->bWakeUpDevice = TRUE;
@@ -346,7 +346,7 @@ int CopyBufferToControlPacket(struct bcm_mini_adapter *Adapter, void *ioBuffer)
 			pktlen = pLeader->PLength;
 			Status = StoreCmControlResponseMessage(Adapter, pucAddIndication, &pktlen);
 			if (Status != 1) {
-				ClearTargetDSXBuffer(Adapter, ((struct bcm_add_indication_alt *)pucAddIndication)->u16TID, FALSE);
+				ClearTargetDSXBuffer(Adapter, ((struct bcm_add_indication_alt *)pucAddIndication)->u16TID, false);
 				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, TX_CONTROL, DBG_LVL_ALL, " Error Restoring The DSX Control Packet. Dsx Buffers on Target may not be Setup Properly ");
 				return STATUS_FAILURE;
 			}
@@ -499,7 +499,7 @@ void LinkControlResponseMessage(struct bcm_mini_adapter *Adapter, PUCHAR pucBuff
 			Adapter->bETHCSEnabled = *(pucBuffer+4) & ETH_CS_MASK;
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "PHS Support Status Received In LinkUp Ack : %x\n", Adapter->bPHSEnabled);
 
-			if ((FALSE == Adapter->bShutStatus) && (FALSE == Adapter->IdleMode)) {
+			if ((false == Adapter->bShutStatus) && (false == Adapter->IdleMode)) {
 				if (Adapter->LEDInfo.led_thread_running & BCM_LED_THREAD_RUNNING_ACTIVELY) {
 					Adapter->DriverState = NORMAL_OPERATION;
 					wake_up(&Adapter->LEDInfo.notify_led_event);
@@ -517,8 +517,8 @@ void LinkControlResponseMessage(struct bcm_mini_adapter *Adapter, PUCHAR pucBuff
 			Adapter->LinkUpStatus = 0;
 			Adapter->LinkStatus = 0;
 			Adapter->usBestEffortQueueIndex = INVALID_QUEUE_INDEX;
-			Adapter->bTriedToWakeUpFromlowPowerMode = FALSE;
-			Adapter->IdleMode = FALSE;
+			Adapter->bTriedToWakeUpFromlowPowerMode = false;
+			Adapter->IdleMode = false;
 			beceem_protocol_reset(Adapter);
 
 			break;
@@ -578,7 +578,7 @@ void SendIdleModeResponse(struct bcm_mini_adapter *Adapter)
 
 		stIdleResponse.szData[1] = TARGET_CAN_NOT_GO_TO_IDLE_MODE; /* NACK- device access is going on. */
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_RX, RX_DPC, DBG_LVL_ALL, "HOST IS NACKING Idle mode To F/W!!!!!!!!");
-		Adapter->bPreparingForLowPowerMode = FALSE;
+		Adapter->bPreparingForLowPowerMode = false;
 	} else {
 		stIdleResponse.szData[1] = TARGET_CAN_GO_TO_IDLE_MODE; /* 2; Idle ACK */
 		Adapter->StatisticsPointer = 0;
@@ -613,7 +613,7 @@ void SendIdleModeResponse(struct bcm_mini_adapter *Adapter)
 			if (Adapter->bDoSuspend == TRUE)
 				Bcm_kill_all_URBs((struct bcm_interface_adapter *)(Adapter->pvInterfaceAdapter));
 		} else {
-			Adapter->bPreparingForLowPowerMode = FALSE;
+			Adapter->bPreparingForLowPowerMode = false;
 		}
 
 		if (!NVMAccess)
@@ -626,7 +626,7 @@ void SendIdleModeResponse(struct bcm_mini_adapter *Adapter)
 	status = CopyBufferToControlPacket(Adapter, &stIdleResponse);
 	if ((status != STATUS_SUCCESS)) {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "fail to send the Idle mode Request\n");
-		Adapter->bPreparingForLowPowerMode = FALSE;
+		Adapter->bPreparingForLowPowerMode = false;
 		StartInterruptUrb((struct bcm_interface_adapter *)(Adapter->pvInterfaceAdapter));
 	}
 	do_gettimeofday(&tv);
@@ -651,8 +651,8 @@ void DumpPackInfo(struct bcm_mini_adapter *Adapter)
 
 	for (uiLoopIndex = 0; uiLoopIndex < NO_OF_QUEUES; uiLoopIndex++) {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, DBG_LVL_ALL, "*********** Showing Details Of Queue %d***** ******", uiLoopIndex);
-		if (FALSE == Adapter->PackInfo[uiLoopIndex].bValid) {
-			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, DBG_LVL_ALL, "bValid is FALSE for %X index\n", uiLoopIndex);
+		if (false == Adapter->PackInfo[uiLoopIndex].bValid) {
+			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_INFO, DBG_LVL_ALL, "bValid is false for %X index\n", uiLoopIndex);
 			continue;
 		}
 
@@ -783,7 +783,7 @@ int reset_card_proc(struct bcm_mini_adapter *ps_adapter)
 	int bytes;
 
 	psIntfAdapter = ((struct bcm_interface_adapter *)(ps_adapter->pvInterfaceAdapter));
-	ps_adapter->bDDRInitDone = FALSE;
+	ps_adapter->bDDRInitDone = false;
 
 	if (ps_adapter->chip_id >= T3LPB) {
 		/* SYS_CFG register is write protected hence for modifying this reg value, it should be read twice before */
@@ -803,7 +803,7 @@ int reset_card_proc(struct bcm_mini_adapter *ps_adapter)
 	if (ps_adapter->chip_id >= T3LPB) {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Resetting UMA-B\n");
 		retval = usb_reset_device(psIntfAdapter->udev);
-		psIntfAdapter->psAdapter->StopAllXaction = FALSE;
+		psIntfAdapter->psAdapter->StopAllXaction = false;
 
 		if (retval != STATUS_SUCCESS) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Reset failed with ret value :%d", retval);
@@ -888,7 +888,7 @@ int reset_card_proc(struct bcm_mini_adapter *ps_adapter)
 	wrmalt(ps_adapter, 0x0f01186c, &uiResetValue, sizeof(uiResetValue));
 
 err_exit:
-	psIntfAdapter->psAdapter->StopAllXaction = FALSE;
+	psIntfAdapter->psAdapter->StopAllXaction = false;
 	return retval;
 }
 
@@ -968,7 +968,7 @@ int InitCardAndDownloadFirmware(struct bcm_mini_adapter *ps_adapter)
 		return -EIO;
 	}
 
-	if (FALSE == ps_adapter->AutoFirmDld) {
+	if (false == ps_adapter->AutoFirmDld) {
 		BCM_DEBUG_PRINT(ps_adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "AutoFirmDld Disabled in CFG File..\n");
 		/* If Auto f/w download is disable, register the control interface, */
 		/* register the control interface after the mailbox. */
@@ -1094,7 +1094,7 @@ void beceem_parse_target_struct(struct bcm_mini_adapter *Adapter)
 
 	if (ntohl(Adapter->pstargetparams->m_u32PhyParameter2) & AUTO_SYNC_DISABLE) {
 		pr_info(DRV_NAME ": AutoSyncup is Disabled\n");
-		Adapter->AutoSyncup = FALSE;
+		Adapter->AutoSyncup = false;
 	} else {
 		pr_info(DRV_NAME ": AutoSyncup is Enabled\n");
 		Adapter->AutoSyncup = TRUE;
@@ -1105,7 +1105,7 @@ void beceem_parse_target_struct(struct bcm_mini_adapter *Adapter)
 		Adapter->AutoLinkUp = TRUE;
 	} else {
 		pr_info(DRV_NAME ": Disabling autolink up");
-		Adapter->AutoLinkUp = FALSE;
+		Adapter->AutoLinkUp = false;
 	}
 	/* Setting the DDR Setting.. */
 	Adapter->DDRSetting = (ntohl(Adapter->pstargetparams->HostDrvrConfig6) >> 8)&0x0F;
@@ -1117,7 +1117,7 @@ void beceem_parse_target_struct(struct bcm_mini_adapter *Adapter)
 		Adapter->AutoFirmDld = TRUE;
 	} else {
 		pr_info(DRV_NAME ": Disabling Auto Firmware Download\n");
-		Adapter->AutoFirmDld = FALSE;
+		Adapter->AutoFirmDld = false;
 	}
 	uiHostDrvrCfg6 = ntohl(Adapter->pstargetparams->HostDrvrConfig6);
 	Adapter->bMipsConfig = (uiHostDrvrCfg6>>20)&0x01;
@@ -1155,21 +1155,21 @@ static void doPowerAutoCorrection(struct bcm_mini_adapter *psAdapter)
 
 	if (reporting_mode == TRUE) {
 		BCM_DEBUG_PRINT(psAdapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "can't do suspen/resume as reporting mode is enable");
-		psAdapter->bDoSuspend = FALSE;
+		psAdapter->bDoSuspend = false;
 	}
 
 	if (psAdapter->bIsAutoCorrectEnabled && (psAdapter->chip_id >= T3LPB)) {
 		/* If reporting mode is enable, switch PMU to PMC */
 		{
 			psAdapter->ulPowerSaveMode = DEVICE_POWERSAVE_MODE_AS_PMU_CLOCK_GATING;
-			psAdapter->bDoSuspend = FALSE;
+			psAdapter->bDoSuspend = false;
 		}
 
 		/* clearing space bit[15..12] */
 		psAdapter->pstargetparams->HostDrvrConfig6 &= ~(htonl((0xF << 12)));
 		/* placing the power save mode option */
 		psAdapter->pstargetparams->HostDrvrConfig6 |= htonl((psAdapter->ulPowerSaveMode << 12));
-	} else if (psAdapter->bIsAutoCorrectEnabled == FALSE) {
+	} else if (psAdapter->bIsAutoCorrectEnabled == false) {
 		/* remove the autocorrect disable bit set before dumping. */
 		psAdapter->ulPowerSaveMode &= ~(1 << 3);
 		psAdapter->pstargetparams->HostDrvrConfig6 &= ~(htonl(1 << 15));
@@ -1302,8 +1302,8 @@ static void HandleShutDownModeWakeup(struct bcm_mini_adapter *Adapter)
 		wake_up(&Adapter->LEDInfo.notify_led_event);
 	}
 
-	Adapter->bTriedToWakeUpFromlowPowerMode = FALSE;
-	Adapter->bShutStatus = FALSE;
+	Adapter->bTriedToWakeUpFromlowPowerMode = false;
+	Adapter->bShutStatus = false;
 	wake_up(&Adapter->lowpower_mode_wait_queue);
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, MP_SHUTDOWN, DBG_LVL_ALL, "<====\n");
 }
@@ -1341,7 +1341,7 @@ static void SendShutModeResponse(struct bcm_mini_adapter *Adapter)
 
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, MP_SHUTDOWN, DBG_LVL_ALL, "Device Access is going on NACK the Shut Down MODE\n");
 		stShutdownResponse.szData[2] = SHUTDOWN_NACK_FROM_DRIVER; /* NACK- device access is going on. */
-		Adapter->bPreparingForLowPowerMode = FALSE;
+		Adapter->bPreparingForLowPowerMode = false;
 	} else {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, MP_SHUTDOWN, DBG_LVL_ALL, "Sending SHUTDOWN MODE ACK\n");
 		stShutdownResponse.szData[2] = SHUTDOWN_ACK_FROM_DRIVER; /* ShutDown ACK */
@@ -1374,7 +1374,7 @@ static void SendShutModeResponse(struct bcm_mini_adapter *Adapter)
 			if (Adapter->bDoSuspend == TRUE)
 				Bcm_kill_all_URBs((struct bcm_interface_adapter *)(Adapter->pvInterfaceAdapter));
 		} else {
-			Adapter->bPreparingForLowPowerMode = FALSE;
+			Adapter->bPreparingForLowPowerMode = false;
 		}
 
 		if (!NVMAccess)
@@ -1387,7 +1387,7 @@ static void SendShutModeResponse(struct bcm_mini_adapter *Adapter)
 	Status = CopyBufferToControlPacket(Adapter, &stShutdownResponse);
 	if ((Status != STATUS_SUCCESS)) {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, MP_SHUTDOWN, DBG_LVL_ALL, "fail to send the Idle mode Request\n");
-		Adapter->bPreparingForLowPowerMode = FALSE;
+		Adapter->bPreparingForLowPowerMode = false;
 		StartInterruptUrb((struct bcm_interface_adapter *)(Adapter->pvInterfaceAdapter));
 	}
 }
@@ -1430,11 +1430,11 @@ void ResetCounters(struct bcm_mini_adapter *Adapter)
 	Adapter->LinkStatus = 0;
 	atomic_set(&Adapter->cntrlpktCnt, 0);
 	atomic_set(&Adapter->TotalPacketCount, 0);
-	Adapter->fw_download_done = FALSE;
+	Adapter->fw_download_done = false;
 	Adapter->LinkStatus = 0;
-	Adapter->AutoLinkUp = FALSE;
-	Adapter->IdleMode = FALSE;
-	Adapter->bShutStatus = FALSE;
+	Adapter->AutoLinkUp = false;
+	Adapter->IdleMode = false;
+	Adapter->bShutStatus = false;
 }
 
 struct bcm_classifier_rule *GetFragIPClsEntry(struct bcm_mini_adapter *Adapter, USHORT usIpIdentification, ULONG SrcIP)
@@ -1521,7 +1521,7 @@ void update_per_sf_desc_cnts(struct bcm_mini_adapter *Adapter)
 				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Invalid VCID : %x\n", Adapter->PackInfo[iIndex].usVCID_Value);
 		}
 	}
-	atomic_set(&Adapter->uiMBupdate, FALSE);
+	atomic_set(&Adapter->uiMBupdate, false);
 }
 
 void flush_queue(struct bcm_mini_adapter *Adapter, unsigned int iQIndex)
@@ -1557,8 +1557,8 @@ static void beceem_protocol_reset(struct bcm_mini_adapter *Adapter)
 	netif_carrier_off(Adapter->dev);
 	netif_stop_queue(Adapter->dev);
 
-	Adapter->IdleMode = FALSE;
-	Adapter->LinkUpStatus = FALSE;
+	Adapter->IdleMode = false;
+	Adapter->LinkUpStatus = false;
 	ClearTargetDSXBuffer(Adapter, 0, TRUE);
 	/* Delete All Classifier Rules */
 
@@ -1568,7 +1568,7 @@ static void beceem_protocol_reset(struct bcm_mini_adapter *Adapter)
 	flush_all_queues(Adapter);
 
 	if (Adapter->TimerActive == TRUE)
-		Adapter->TimerActive = FALSE;
+		Adapter->TimerActive = false;
 
 	memset(Adapter->astFragmentedPktClassifierTable, 0, sizeof(struct bcm_fragmented_packet_info) * MAX_FRAGMENTEDIP_CLASSIFICATION_ENTRIES);
 
diff --git a/drivers/staging/bcm/PHSModule.c b/drivers/staging/bcm/PHSModule.c
index 33965d763742..892ebc65cdd3 100644
--- a/drivers/staging/bcm/PHSModule.c
+++ b/drivers/staging/bcm/PHSModule.c
@@ -569,7 +569,7 @@ ULONG PhsDeleteSFRules(IN void *pvContext, IN B_UINT16 uiVcid)
 				memset(&pstClassifierRulesTable->stOldPhsRulesList[nClsidIndex], 0, sizeof(struct bcm_phs_classifier_entry));
 			}
 		}
-		pstServiceFlowEntry->bUsed = FALSE;
+		pstServiceFlowEntry->bUsed = false;
 		pstServiceFlowEntry->uiVcid = 0;
 	}
 
@@ -793,21 +793,21 @@ static bool ValidatePHSRuleComplete(IN struct bcm_phs_rule *psPhsRule)
 	if (psPhsRule) {
 		if (!psPhsRule->u8PHSI) {
 			/* PHSI is not valid */
-			return FALSE;
+			return false;
 		}
 
 		if (!psPhsRule->u8PHSS) {
 			/* PHSS Is Undefined */
-			return FALSE;
+			return false;
 		}
 
 		/* Check if PHSF is defines for the PHS Rule */
 		if (!psPhsRule->u8PHSFLength) /* If any part of PHSF is valid then Rule contains valid PHSF */
-			return FALSE;
+			return false;
 
 		return TRUE;
 	} else
-		return FALSE;
+		return false;
 }
 
 UINT GetServiceFlowEntry(IN struct bcm_phs_table *psServiceFlowTable,
@@ -888,7 +888,7 @@ static UINT CreateSFToClassifierRuleMapping(IN B_UINT16 uiVcid, IN B_UINT16  uiC
 	struct bcm_phs_classifier_table *psaClassifiertable = NULL;
 	UINT uiStatus = 0;
 	int iSfIndex;
-	bool bFreeEntryFound = FALSE;
+	bool bFreeEntryFound = false;
 
 	/* Check for a free entry in SFID table */
 	for (iSfIndex = 0; iSfIndex < MAX_SERVICEFLOWS; iSfIndex++) {
@@ -1009,7 +1009,7 @@ static UINT CreateClassifierPHSRule(IN B_UINT16  uiClsId,
 				B_UINT8 u8AssociatedPHSI)
 {
 	UINT iClassifierIndex = 0;
-	bool bFreeEntryFound = FALSE;
+	bool bFreeEntryFound = false;
 	struct bcm_phs_classifier_entry *psClassifierRules = NULL;
 	UINT nStatus = PHS_SUCCESS;
 	struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
@@ -1102,7 +1102,7 @@ static UINT UpdateClassifierPHSRule(IN B_UINT16  uiClsId,
 {
 	struct bcm_phs_rule *pstAddPhsRule = NULL;
 	UINT nPhsRuleIndex = 0;
-	bool bPHSRuleOrphaned = FALSE;
+	bool bPHSRuleOrphaned = false;
 	struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
 
 	psPhsRule->u8RefCnt = 0;
@@ -1124,7 +1124,7 @@ static UINT UpdateClassifierPHSRule(IN B_UINT16  uiClsId,
 		}
 
 		/* Step 2.a PHS Rule Does Not Exist .Create New PHS Rule for uiClsId */
-		if (FALSE == bPHSRuleOrphaned) {
+		if (false == bPHSRuleOrphaned) {
 
 			pstClassifierEntry->pstPhsRule = kmalloc(sizeof(struct bcm_phs_rule), GFP_KERNEL);
 			if (NULL == pstClassifierEntry->pstPhsRule)
@@ -1153,7 +1153,7 @@ static UINT UpdateClassifierPHSRule(IN B_UINT16  uiClsId,
 static bool DerefPhsRule(IN B_UINT16  uiClsId, struct bcm_phs_classifier_table *psaClassifiertable, struct bcm_phs_rule *pstPhsRule)
 {
 	if (pstPhsRule == NULL)
-		return FALSE;
+		return false;
 
 	if (pstPhsRule->u8RefCnt)
 		pstPhsRule->u8RefCnt--;
@@ -1166,7 +1166,7 @@ static bool DerefPhsRule(IN B_UINT16  uiClsId, struct bcm_phs_classifier_table *
 		 */
 		return TRUE;
 	} else
-		return FALSE;
+		return false;
 }
 
 void DumpPhsRules(struct bcm_phs_extension *pDeviceExtension)
diff --git a/drivers/staging/bcm/Qos.c b/drivers/staging/bcm/Qos.c
index 3d687e577dd3..1609a2bdc522 100644
--- a/drivers/staging/bcm/Qos.c
+++ b/drivers/staging/bcm/Qos.c
@@ -43,7 +43,7 @@ bool MatchSrcIpAddress(struct bcm_classifier_rule *pstClassifierRule, ULONG ulSr
 		}
 	}
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Src Ip Address Not Matched");
-	return FALSE;
+	return false;
 }
 
 
@@ -77,7 +77,7 @@ bool MatchDestIpAddress(struct bcm_classifier_rule *pstClassifierRule, ULONG ulD
 		}
 	}
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Destination Ip Address Not Matched");
-	return FALSE;
+	return false;
 }
 
 
@@ -103,7 +103,7 @@ bool MatchTos(struct bcm_classifier_rule *pstClassifierRule, UCHAR ucTypeOfServi
 		return TRUE;
 	}
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Type Of Service Not Matched");
-	return FALSE;
+	return false;
 }
 
 
@@ -132,7 +132,7 @@ bool MatchProtocol(struct bcm_classifier_rule *pstClassifierRule, UCHAR ucProtoc
 		}
 	}
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Protocol Not Matched");
-	return FALSE;
+	return false;
 }
 
 
@@ -164,7 +164,7 @@ bool MatchSrcPort(struct bcm_classifier_rule *pstClassifierRule, USHORT ushSrcPo
 		}
 	}
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Src Port: %x Not Matched ", ushSrcPort);
-	return FALSE;
+	return false;
 }
 
 
@@ -197,7 +197,7 @@ bool MatchDestPort(struct bcm_classifier_rule *pstClassifierRule, USHORT ushDest
 		}
 	}
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Dest Port: %x Not Matched", ushDestPort);
-	return FALSE;
+	return false;
 }
 /**
 @ingroup tx_functions
@@ -209,7 +209,7 @@ static USHORT	IpVersion4(struct bcm_mini_adapter *Adapter,
 			   struct bcm_classifier_rule *pstClassifierRule)
 {
 	struct bcm_transport_header *xprt_hdr = NULL;
-	bool	bClassificationSucceed = FALSE;
+	bool	bClassificationSucceed = false;
 
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "========>");
 
@@ -223,7 +223,7 @@ static USHORT	IpVersion4(struct bcm_mini_adapter *Adapter,
 		//Checking classifier validity
 		if (!pstClassifierRule->bUsed || pstClassifierRule->ucDirection == DOWNLINK_DIR)
 		{
-			bClassificationSucceed = FALSE;
+			bClassificationSucceed = false;
 			break;
 		}
 
@@ -233,17 +233,17 @@ static USHORT	IpVersion4(struct bcm_mini_adapter *Adapter,
 
 		//**************Checking IP header parameter**************************//
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Trying to match Source IP Address");
-		if (FALSE == (bClassificationSucceed =
+		if (false == (bClassificationSucceed =
 			MatchSrcIpAddress(pstClassifierRule, iphd->saddr)))
 			break;
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Source IP Address Matched");
 
-		if (FALSE == (bClassificationSucceed =
+		if (false == (bClassificationSucceed =
 			MatchDestIpAddress(pstClassifierRule, iphd->daddr)))
 			break;
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Destination IP Address Matched");
 
-		if (FALSE == (bClassificationSucceed =
+		if (false == (bClassificationSucceed =
 			MatchTos(pstClassifierRule, iphd->tos)))
 		{
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "TOS Match failed\n");
@@ -251,7 +251,7 @@ static USHORT	IpVersion4(struct bcm_mini_adapter *Adapter,
 		}
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "TOS Matched");
 
-		if (FALSE == (bClassificationSucceed =
+		if (false == (bClassificationSucceed =
 			MatchProtocol(pstClassifierRule, iphd->protocol)))
 			break;
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Protocol Matched");
@@ -263,7 +263,7 @@ static USHORT	IpVersion4(struct bcm_mini_adapter *Adapter,
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Source Port %04x",
 			(iphd->protocol == UDP) ? xprt_hdr->uhdr.source : xprt_hdr->thdr.source);
 
-		if (FALSE == (bClassificationSucceed =
+		if (false == (bClassificationSucceed =
 			MatchSrcPort(pstClassifierRule,
 				ntohs((iphd->protocol == UDP) ?
 				xprt_hdr->uhdr.source : xprt_hdr->thdr.source))))
@@ -273,7 +273,7 @@ static USHORT	IpVersion4(struct bcm_mini_adapter *Adapter,
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Destination Port %04x",
 			(iphd->protocol == UDP) ? xprt_hdr->uhdr.dest :
 			xprt_hdr->thdr.dest);
-		if (FALSE == (bClassificationSucceed =
+		if (false == (bClassificationSucceed =
 			MatchDestPort(pstClassifierRule,
 			ntohs((iphd->protocol == UDP) ?
 			xprt_hdr->uhdr.dest : xprt_hdr->thdr.dest))))
@@ -286,13 +286,13 @@ static USHORT	IpVersion4(struct bcm_mini_adapter *Adapter,
 		iMatchedSFQueueIndex = SearchSfid(Adapter, pstClassifierRule->ulSFID);
 		if (iMatchedSFQueueIndex >= NO_OF_QUEUES)
 		{
-			bClassificationSucceed = FALSE;
+			bClassificationSucceed = false;
 		}
 		else
 		{
-			if (FALSE == Adapter->PackInfo[iMatchedSFQueueIndex].bActive)
+			if (false == Adapter->PackInfo[iMatchedSFQueueIndex].bActive)
 			{
-				bClassificationSucceed = FALSE;
+				bClassificationSucceed = false;
 			}
 		}
 	}
@@ -451,7 +451,7 @@ USHORT ClassifyPacket(struct bcm_mini_adapter *Adapter, struct sk_buff* skb)
 	struct iphdr *pIpHeader = NULL;
 	INT	  uiSfIndex = 0;
 	USHORT	usIndex = Adapter->usBestEffortQueueIndex;
-	bool	bFragmentedPkt = FALSE, bClassificationSucceed = FALSE;
+	bool	bFragmentedPkt = false, bClassificationSucceed = false;
 	USHORT	usCurrFragment = 0;
 
 	struct bcm_tcp_header *pTcpHeader;
@@ -529,16 +529,16 @@ USHORT ClassifyPacket(struct bcm_mini_adapter *Adapter, struct sk_buff* skb)
 		//to classify the packet until match found
 		do
 		{
-			if (FALSE == Adapter->astClassifierTable[uiLoopIndex].bUsed)
+			if (false == Adapter->astClassifierTable[uiLoopIndex].bUsed)
 			{
-				bClassificationSucceed = FALSE;
+				bClassificationSucceed = false;
 				break;
 			}
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL,  "Adapter->PackInfo[%d].bvalid=True\n", uiLoopIndex);
 
 			if (0 == Adapter->astClassifierTable[uiLoopIndex].ucDirection)
 			{
-				bClassificationSucceed = FALSE;//cannot be processed for classification.
+				bClassificationSucceed = false;//cannot be processed for classification.
 				break;						// it is a down link connection
 			}
 
@@ -556,7 +556,7 @@ USHORT ClassifyPacket(struct bcm_mini_adapter *Adapter, struct sk_buff* skb)
 				if (eEthUnsupportedFrame == stEthCsPktInfo.eNwpktEthFrameType)
 				{
 					BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, " ClassifyPacket : Packet Not a Valid Supported Ethernet Frame\n");
-					bClassificationSucceed = FALSE;
+					bClassificationSucceed = false;
 					break;
 				}
 
@@ -577,7 +577,7 @@ USHORT ClassifyPacket(struct bcm_mini_adapter *Adapter, struct sk_buff* skb)
 				if (eEthOtherFrame != stEthCsPktInfo.eNwpktEthFrameType)
 				{
 					BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, " ClassifyPacket : Packet Not a 802.3 Ethernet Frame... hence not allowed over non-ETH CS SF\n");
-					bClassificationSucceed = FALSE;
+					bClassificationSucceed = false;
 					break;
 				}
 			}
@@ -590,7 +590,7 @@ USHORT ClassifyPacket(struct bcm_mini_adapter *Adapter, struct sk_buff* skb)
 				if (stEthCsPktInfo.eNwpktIPFrameType == eNonIPPacket)
 				{
 					BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, " ClassifyPacket : Packet is Not an IP Packet\n");
-					bClassificationSucceed = FALSE;
+					bClassificationSucceed = false;
 					break;
 				}
 				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "Dump IP Header :\n");
@@ -636,7 +636,7 @@ USHORT ClassifyPacket(struct bcm_mini_adapter *Adapter, struct sk_buff* skb)
 			stFragPktInfo.ulSrcIpAddress = pIpHeader->saddr;
 			stFragPktInfo.usIpIdentification = pIpHeader->id;
 			stFragPktInfo.pstMatchedClassifierEntry = pstClassifierRule;
-			stFragPktInfo.bOutOfOrderFragment = FALSE;
+			stFragPktInfo.bOutOfOrderFragment = false;
 			AddFragIPClsEntry(Adapter, &stFragPktInfo);
 		}
 
@@ -661,7 +661,7 @@ static bool EthCSMatchSrcMACAddress(struct bcm_classifier_rule *pstClassifierRul
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL,  "SRC MAC[%x] = %x ClassifierRuleSrcMAC = %x Mask : %x\n", i, Mac[i], pstClassifierRule->au8EThCSSrcMAC[i], pstClassifierRule->au8EThCSSrcMACMask[i]);
 		if ((pstClassifierRule->au8EThCSSrcMAC[i] & pstClassifierRule->au8EThCSSrcMACMask[i]) !=
 			(Mac[i] & pstClassifierRule->au8EThCSSrcMACMask[i]))
-			return FALSE;
+			return false;
 	}
 	return TRUE;
 }
@@ -678,7 +678,7 @@ static bool EthCSMatchDestMACAddress(struct bcm_classifier_rule *pstClassifierRu
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL, "SRC MAC[%x] = %x ClassifierRuleSrcMAC = %x Mask : %x\n", i, Mac[i], pstClassifierRule->au8EThCSDestMAC[i], pstClassifierRule->au8EThCSDestMACMask[i]);
 		if ((pstClassifierRule->au8EThCSDestMAC[i] & pstClassifierRule->au8EThCSDestMACMask[i]) !=
 			(Mac[i] & pstClassifierRule->au8EThCSDestMACMask[i]))
-			return FALSE;
+			return false;
 	}
 	return TRUE;
 }
@@ -698,29 +698,29 @@ static bool EthCSMatchEThTypeSAP(struct bcm_classifier_rule *pstClassifierRule,
 		if (memcmp(&pstEthCsPktInfo->usEtherType, &pstClassifierRule->au8EthCSEtherType[1], 2) == 0)
 			return TRUE;
 		else
-			return FALSE;
+			return false;
 	}
 
 	if (pstClassifierRule->au8EthCSEtherType[0] == 2)
 	{
 		if (eEth802LLCFrame != pstEthCsPktInfo->eNwpktEthFrameType)
-			return FALSE;
+			return false;
 
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL,  "%s  EthCS DSAP:%x EtherType[2]:%x\n", __FUNCTION__, pstEthCsPktInfo->ucDSAP, pstClassifierRule->au8EthCSEtherType[2]);
 		if (pstEthCsPktInfo->ucDSAP == pstClassifierRule->au8EthCSEtherType[2])
 			return TRUE;
 		else
-			return FALSE;
+			return false;
 
 	}
 
-	return FALSE;
+	return false;
 
 }
 
 static bool EthCSMatchVLANRules(struct bcm_classifier_rule *pstClassifierRule, struct sk_buff* skb, struct bcm_eth_packet_info *pstEthCsPktInfo)
 {
-	bool bClassificationSucceed = FALSE;
+	bool bClassificationSucceed = false;
 	USHORT usVLANID;
 	B_UINT8 uPriority = 0;
 	struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
@@ -731,7 +731,7 @@ static bool EthCSMatchVLANRules(struct bcm_classifier_rule *pstClassifierRule, s
 	if (pstClassifierRule->usValidityBitMap & (1<<PKT_CLASSIFICATION_USER_PRIORITY_VALID))
 	{
 		if (pstEthCsPktInfo->eNwpktEthFrameType != eEth802QVLANFrame)
-				return FALSE;
+				return false;
 
 		uPriority = (ntohs(*(USHORT *)(skb->data + sizeof(struct bcm_eth_header))) & 0xF000) >> 13;
 
@@ -739,17 +739,17 @@ static bool EthCSMatchVLANRules(struct bcm_classifier_rule *pstClassifierRule, s
 				bClassificationSucceed = TRUE;
 
 		if (!bClassificationSucceed)
-			return FALSE;
+			return false;
 	}
 
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL,  "ETH CS 802.1 D  User Priority Rule Matched\n");
 
-	bClassificationSucceed = FALSE;
+	bClassificationSucceed = false;
 
 	if (pstClassifierRule->usValidityBitMap & (1<<PKT_CLASSIFICATION_VLANID_VALID))
 	{
 		if (pstEthCsPktInfo->eNwpktEthFrameType != eEth802QVLANFrame)
-				return FALSE;
+				return false;
 
 		usVLANID = ntohs(*(USHORT *)(skb->data + sizeof(struct bcm_eth_header))) & 0xFFF;
 
@@ -759,7 +759,7 @@ static bool EthCSMatchVLANRules(struct bcm_classifier_rule *pstClassifierRule, s
 			bClassificationSucceed = TRUE;
 
 		if (!bClassificationSucceed)
-			return FALSE;
+			return false;
 	}
 
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL,  "ETH CS 802.1 Q VLAN ID Rule Matched\n");
@@ -773,21 +773,21 @@ static bool EThCSClassifyPkt(struct bcm_mini_adapter *Adapter, struct sk_buff* s
 				struct bcm_classifier_rule *pstClassifierRule,
 				B_UINT8 EthCSCupport)
 {
-	bool bClassificationSucceed = FALSE;
+	bool bClassificationSucceed = false;
 	bClassificationSucceed = EthCSMatchSrcMACAddress(pstClassifierRule, ((struct bcm_eth_header *)(skb->data))->au8SourceAddress);
 	if (!bClassificationSucceed)
-		return FALSE;
+		return false;
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL,  "ETH CS SrcMAC Matched\n");
 
 	bClassificationSucceed = EthCSMatchDestMACAddress(pstClassifierRule, ((struct bcm_eth_header *)(skb->data))->au8DestinationAddress);
 	if (!bClassificationSucceed)
-		return FALSE;
+		return false;
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL,  "ETH CS DestMAC Matched\n");
 
 	//classify on ETHType/802.2SAP TLV
 	bClassificationSucceed = EthCSMatchEThTypeSAP(pstClassifierRule, skb, pstEthCsPktInfo);
 	if (!bClassificationSucceed)
-		return FALSE;
+		return false;
 
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL,  "ETH CS EthType/802.2SAP Matched\n");
 
@@ -795,7 +795,7 @@ static bool EThCSClassifyPkt(struct bcm_mini_adapter *Adapter, struct sk_buff* s
 
 	bClassificationSucceed = EthCSMatchVLANRules(pstClassifierRule, skb, pstEthCsPktInfo);
 	if (!bClassificationSucceed)
-		return FALSE;
+		return false;
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV4_DBG, DBG_LVL_ALL,  "ETH CS 802.1 VLAN Rules Matched\n");
 
 	return bClassificationSucceed;
diff --git a/drivers/staging/bcm/Transmit.c b/drivers/staging/bcm/Transmit.c
index 70a9d4ae7f59..2ed4836b9654 100644
--- a/drivers/staging/bcm/Transmit.c
+++ b/drivers/staging/bcm/Transmit.c
@@ -84,7 +84,7 @@ int SendControlPacket(struct bcm_mini_adapter *Adapter, char *pControlPacket)
 int SetupNextSend(struct bcm_mini_adapter *Adapter,  struct sk_buff *Packet, USHORT Vcid)
 {
 	int	status = 0;
-	bool	bHeaderSupressionEnabled = FALSE;
+	bool	bHeaderSupressionEnabled = false;
 	B_UINT16 uiClassifierRuleID;
 	u16	QueueIndex = skb_get_queue_mapping(Packet);
 	struct bcm_leader Leader = {0};
@@ -204,7 +204,7 @@ int tx_pkt_handler(struct bcm_mini_adapter *Adapter /**< pointer to adapter obje
 		/* Check end point for halt/stall. */
 		if (Adapter->bEndPointHalted == TRUE) {
 			Bcm_clear_halt_of_endpoints(Adapter);
-			Adapter->bEndPointHalted = FALSE;
+			Adapter->bEndPointHalted = false;
 			StartInterruptUrb((struct bcm_interface_adapter *)(Adapter->pvInterfaceAdapter));
 		}
 
diff --git a/drivers/staging/bcm/Typedefs.h b/drivers/staging/bcm/Typedefs.h
index 69aa16f59300..832adcfd1e3a 100644
--- a/drivers/staging/bcm/Typedefs.h
+++ b/drivers/staging/bcm/Typedefs.h
@@ -6,7 +6,7 @@
 #define  STATUS_SUCCESS	0
 #define  STATUS_FAILURE -1
 
-#define	 FALSE		0
+
 #define	 TRUE		1
 
 
diff --git a/drivers/staging/bcm/led_control.c b/drivers/staging/bcm/led_control.c
index 194edd7b6890..eee4f4795a71 100644
--- a/drivers/staging/bcm/led_control.c
+++ b/drivers/staging/bcm/led_control.c
@@ -18,7 +18,7 @@ bool IsReqGpioIsLedInNVM(struct bcm_mini_adapter *Adapter, UINT gpios)
 	INT Status;
 	Status = (Adapter->gpioBitMap & gpios) ^ gpios;
 	if (Status)
-		return FALSE;
+		return false;
 	else
 		return TRUE;
 }
@@ -27,7 +27,7 @@ static INT LED_Blink(struct bcm_mini_adapter *Adapter, UINT GPIO_Num, UCHAR uiLe
 		ULONG timeout, INT num_of_time, enum bcm_led_events currdriverstate)
 {
 	int Status = STATUS_SUCCESS;
-	bool bInfinite = FALSE;
+	bool bInfinite = false;
 
 	/* Check if num_of_time is -ve. If yes, blink led in infinite loop */
 	if (num_of_time < 0) {
@@ -67,7 +67,7 @@ static INT LED_Blink(struct bcm_mini_adapter *Adapter, UINT GPIO_Num, UCHAR uiLe
 				currdriverstate != Adapter->DriverState ||
 					kthread_should_stop(),
 				msecs_to_jiffies(timeout));
-		if (bInfinite == FALSE)
+		if (bInfinite == false)
 			num_of_time--;
 	}
 	return Status;
@@ -120,7 +120,7 @@ static INT LED_Proportional_Blink(struct bcm_mini_adapter *Adapter, UCHAR GPIO_N
 	num_of_time_tx = ScaleRateofTransfer((ULONG)rate_of_transfer_tx);
 	num_of_time_rx = ScaleRateofTransfer((ULONG)rate_of_transfer_rx);
 
-	while ((Adapter->device_removed == FALSE)) {
+	while ((Adapter->device_removed == false)) {
 		timeout = 50;
 		/*
 		 * Blink Tx and Rx LED when both Tx and Rx is
@@ -499,10 +499,10 @@ static int ReadConfigFileStructure(struct bcm_mini_adapter *Adapter,
 	/* Read the GPIO numbers from EEPROM */
 	Status = ReadLEDInformationFromEEPROM(Adapter, GPIO_Array);
 	if (Status == STATUS_IMAGE_CHECKSUM_MISMATCH) {
-		*bEnableThread = FALSE;
+		*bEnableThread = false;
 		return STATUS_SUCCESS;
 	} else if (Status) {
-		*bEnableThread = FALSE;
+		*bEnableThread = false;
 		return Status;
 	}
 
@@ -561,7 +561,7 @@ static int ReadConfigFileStructure(struct bcm_mini_adapter *Adapter,
 			uiNum_of_LED_Type++;
 	}
 	if (uiNum_of_LED_Type >= NUM_OF_LEDS)
-		*bEnableThread = FALSE;
+		*bEnableThread = false;
 
 	return Status;
 }
@@ -602,7 +602,7 @@ static VOID LedGpioInit(struct bcm_mini_adapter *Adapter)
 		BCM_DEBUG_PRINT (Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO,
 			DBG_LVL_ALL, "LED Thread: WRM Failed\n");
 
-	Adapter->LEDInfo.bIdle_led_off = FALSE;
+	Adapter->LEDInfo.bIdle_led_off = false;
 }
 
 static INT BcmGetGPIOPinInfo(struct bcm_mini_adapter *Adapter, UCHAR *GPIO_num_tx,
@@ -660,7 +660,7 @@ static VOID LEDControlThread(struct bcm_mini_adapter *Adapter)
 	UCHAR dummyIndex = 0;
 
 	/* currdriverstate = Adapter->DriverState; */
-	Adapter->LEDInfo.bIdleMode_tx_from_host = FALSE;
+	Adapter->LEDInfo.bIdleMode_tx_from_host = false;
 
 	/*
 	 * Wait till event is triggered
@@ -698,7 +698,7 @@ static VOID LEDControlThread(struct bcm_mini_adapter *Adapter)
 		if (GPIO_num != DISABLE_GPIO_NUM)
 			TURN_OFF_LED(1 << GPIO_num, uiLedIndex);
 
-		if (Adapter->LEDInfo.bLedInitDone == FALSE) {
+		if (Adapter->LEDInfo.bLedInitDone == false) {
 			LedGpioInit(Adapter);
 			Adapter->LEDInfo.bLedInitDone = TRUE;
 		}
@@ -757,7 +757,7 @@ static VOID LEDControlThread(struct bcm_mini_adapter *Adapter)
 				UCHAR uiLEDTx = 0;
 				UCHAR uiLEDRx = 0;
 				currdriverstate = NORMAL_OPERATION;
-				Adapter->LEDInfo.bIdle_led_off = FALSE;
+				Adapter->LEDInfo.bIdle_led_off = false;
 
 				BcmGetGPIOPinInfo(Adapter, &GPIO_num_tx,
 					&GPIO_num_rx, &uiLEDTx, &uiLEDRx,
@@ -803,7 +803,7 @@ static VOID LEDControlThread(struct bcm_mini_adapter *Adapter)
 
 			}
 			/* Turn off LED And WAKE-UP for Sendinf IDLE mode ACK */
-			Adapter->LEDInfo.bLedInitDone = FALSE;
+			Adapter->LEDInfo.bLedInitDone = false;
 			Adapter->LEDInfo.bIdle_led_off = TRUE;
 			wake_up(&Adapter->LEDInfo.idleModeSyncEvent);
 			GPIO_num = DISABLE_GPIO_NUM;
@@ -830,7 +830,7 @@ static VOID LEDControlThread(struct bcm_mini_adapter *Adapter)
 			currdriverstate = LED_THREAD_INACTIVE;
 			Adapter->LEDInfo.led_thread_running =
 					BCM_LED_THREAD_RUNNING_INACTIVELY;
-			Adapter->LEDInfo.bLedInitDone = FALSE;
+			Adapter->LEDInfo.bLedInitDone = false;
 			/* disable ALL LED */
 			for (uiIndex = 0; uiIndex < NUM_OF_LEDS; uiIndex++) {
 				if (Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num
@@ -841,7 +841,7 @@ static VOID LEDControlThread(struct bcm_mini_adapter *Adapter)
 		case LED_THREAD_ACTIVE:
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO,
 				DBG_LVL_ALL, "Activating LED thread again...");
-			if (Adapter->LinkUpStatus == FALSE)
+			if (Adapter->LinkUpStatus == false)
 				Adapter->DriverState = NO_NETWORK_ENTRY;
 			else
 				Adapter->DriverState = NORMAL_OPERATION;
@@ -899,7 +899,7 @@ int InitLedSettings(struct bcm_mini_adapter *Adapter)
 		init_waitqueue_head(&Adapter->LEDInfo.idleModeSyncEvent);
 		Adapter->LEDInfo.led_thread_running =
 					BCM_LED_THREAD_RUNNING_ACTIVELY;
-		Adapter->LEDInfo.bIdle_led_off = FALSE;
+		Adapter->LEDInfo.bIdle_led_off = false;
 		Adapter->LEDInfo.led_cntrl_threadid =
 			kthread_run((int (*)(void *)) LEDControlThread,
 			Adapter, "led_control_thread");
diff --git a/drivers/staging/bcm/nvm.c b/drivers/staging/bcm/nvm.c
index 59c5bf3ba614..9e5f955a1a08 100644
--- a/drivers/staging/bcm/nvm.c
+++ b/drivers/staging/bcm/nvm.c
@@ -1084,11 +1084,11 @@ static int BeceemFlashBulkWrite(struct bcm_mini_adapter *Adapter,
 	 * for DSD calibration, allow it without checking of sector permission
 	 */
 
-	if (IsFlash2x(Adapter) && (Adapter->bAllDSDWriteAllow == FALSE)) {
+	if (IsFlash2x(Adapter) && (Adapter->bAllDSDWriteAllow == false)) {
 		index = 0;
 		uiTemp = uiNumSectTobeRead;
 		while (uiTemp) {
-			if (IsOffsetWritable(Adapter, uiOffsetFromSectStart + index * Adapter->uiSectorSize) == FALSE) {
+			if (IsOffsetWritable(Adapter, uiOffsetFromSectStart + index * Adapter->uiSectorSize) == false) {
 				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Sector Starting at offset <0X%X> is not writable",
 						(uiOffsetFromSectStart + index * Adapter->uiSectorSize));
 				Status = SECTOR_IS_NOT_WRITABLE;
@@ -1265,11 +1265,11 @@ static int BeceemFlashBulkWriteStatus(struct bcm_mini_adapter *Adapter,
 			uiNumSectTobeRead++;
 	}
 
-	if (IsFlash2x(Adapter) && (Adapter->bAllDSDWriteAllow == FALSE)) {
+	if (IsFlash2x(Adapter) && (Adapter->bAllDSDWriteAllow == false)) {
 		index = 0;
 		uiTemp = uiNumSectTobeRead;
 		while (uiTemp) {
-			if (IsOffsetWritable(Adapter, uiOffsetFromSectStart + index * Adapter->uiSectorSize) == FALSE) {
+			if (IsOffsetWritable(Adapter, uiOffsetFromSectStart + index * Adapter->uiSectorSize) == false) {
 				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Sector Starting at offset <0X%x> is not writable",
 						(uiOffsetFromSectStart + index * Adapter->uiSectorSize));
 				Status = SECTOR_IS_NOT_WRITABLE;
@@ -1525,7 +1525,7 @@ static int BeceemEEPROMReadBackandVerify(struct bcm_mini_adapter *Adapter,
 
 			if (memcmp(&pBuffer[uiIndex], &auiData[0], MAX_RW_SIZE)) {
 				/* re-write */
-				BeceemEEPROMBulkWrite(Adapter, (PUCHAR)(pBuffer + uiIndex), uiOffset, MAX_RW_SIZE, FALSE);
+				BeceemEEPROMBulkWrite(Adapter, (PUCHAR)(pBuffer + uiIndex), uiOffset, MAX_RW_SIZE, false);
 				mdelay(3);
 				BeceemEEPROMBulkRead(Adapter, &auiData[0], uiOffset, MAX_RW_SIZE);
 
@@ -1539,7 +1539,7 @@ static int BeceemEEPROMReadBackandVerify(struct bcm_mini_adapter *Adapter,
 			BeceemEEPROMBulkRead(Adapter, &uiData, uiOffset, 4);
 			if (uiData != pBuffer[uiIndex]) {
 				/* re-write */
-				BeceemEEPROMBulkWrite(Adapter, (PUCHAR)(pBuffer + uiIndex), uiOffset, 4, FALSE);
+				BeceemEEPROMBulkWrite(Adapter, (PUCHAR)(pBuffer + uiIndex), uiOffset, 4, false);
 				mdelay(3);
 				BeceemEEPROMBulkRead(Adapter, &uiData, uiOffset, 4);
 				if (uiData != pBuffer[uiIndex])
@@ -1819,7 +1819,7 @@ int BeceemNVMRead(struct bcm_mini_adapter *Adapter,
 	#endif
 
 	if (Adapter->eNVMType == NVM_FLASH) {
-		if (Adapter->bFlashRawRead == FALSE) {
+		if (Adapter->bFlashRawRead == false) {
 			if (IsSectionExistInVendorInfo(Adapter, Adapter->eActiveDSD))
 				return vendorextnReadSection(Adapter, (PUCHAR)pBuffer, Adapter->eActiveDSD, uiOffset, uiNumBytes);
 
@@ -2425,7 +2425,7 @@ static VOID UpdateVendorInfo(struct bcm_mini_adapter *Adapter)
 	B_UINT32 i = 0;
 	unsigned int uiSizeSection = 0;
 
-	Adapter->uiVendorExtnFlag = FALSE;
+	Adapter->uiVendorExtnFlag = false;
 
 	for (i = 0; i < TOTAL_SECTIONS; i++)
 		Adapter->psFlash2xVendorInfo->VendorSection[i].OffsetFromZeroForSectionStart = UNINIT_PTR_IN_CS;
@@ -2685,12 +2685,12 @@ int BcmGetSectionValStartOffset(struct bcm_mini_adapter *Adapter, enum bcm_flash
 	switch (eFlashSectionVal) {
 	case ISO_IMAGE1:
 		if ((Adapter->psFlash2xCSInfo->OffsetISOImage1Part1Start != UNINIT_PTR_IN_CS) &&
-			(IsNonCDLessDevice(Adapter) == FALSE))
+			(IsNonCDLessDevice(Adapter) == false))
 			SectStartOffset = (Adapter->psFlash2xCSInfo->OffsetISOImage1Part1Start);
 		break;
 	case ISO_IMAGE2:
 		if ((Adapter->psFlash2xCSInfo->OffsetISOImage2Part1Start != UNINIT_PTR_IN_CS) &&
-			(IsNonCDLessDevice(Adapter) == FALSE))
+			(IsNonCDLessDevice(Adapter) == false))
 			SectStartOffset = (Adapter->psFlash2xCSInfo->OffsetISOImage2Part1Start);
 		break;
 	case DSD0:
@@ -2770,12 +2770,12 @@ int BcmGetSectionValEndOffset(struct bcm_mini_adapter *Adapter, enum bcm_flash2x
 	switch (eFlash2xSectionVal) {
 	case ISO_IMAGE1:
 		if ((Adapter->psFlash2xCSInfo->OffsetISOImage1Part1End != UNINIT_PTR_IN_CS) &&
-			(IsNonCDLessDevice(Adapter) == FALSE))
+			(IsNonCDLessDevice(Adapter) == false))
 			SectEndOffset = (Adapter->psFlash2xCSInfo->OffsetISOImage1Part1End);
 		break;
 	case ISO_IMAGE2:
 		if ((Adapter->psFlash2xCSInfo->OffsetISOImage2Part1End != UNINIT_PTR_IN_CS) &&
-			(IsNonCDLessDevice(Adapter) == FALSE))
+			(IsNonCDLessDevice(Adapter) == false))
 			SectEndOffset = (Adapter->psFlash2xCSInfo->OffsetISOImage2Part1End);
 		break;
 	case DSD0:
@@ -3037,7 +3037,7 @@ static int BcmGetActiveISO(struct bcm_mini_adapter *Adapter)
  *
  * Return Value:-
  * Success:-TRUE ,  offset is writable
- * Failure:-FALSE, offset is RO
+ * Failure:-false, offset is RO
  *
  */
 
@@ -3062,7 +3062,7 @@ B_UINT8 IsOffsetWritable(struct bcm_mini_adapter *Adapter, unsigned int uiOffset
 	if (permissionBits == SECTOR_READWRITE_PERMISSION)
 		return TRUE;
 	else
-		return FALSE;
+		return false;
 }
 
 static int BcmDumpFlash2xSectionBitMap(struct bcm_flash2x_bitmap *psFlash2xBitMap)
@@ -3105,13 +3105,13 @@ int BcmGetFlash2xSectionalBitMap(struct bcm_mini_adapter *Adapter, struct bcm_fl
 	struct bcm_flash2x_cs_info *psFlash2xCSInfo = Adapter->psFlash2xCSInfo;
 	enum bcm_flash2x_section_val uiHighestPriDSD = 0;
 	enum bcm_flash2x_section_val uiHighestPriISO = 0;
-	bool SetActiveDSDDone = FALSE;
-	bool SetActiveISODone = FALSE;
+	bool SetActiveDSDDone = false;
+	bool SetActiveISODone = false;
 
 	/* For 1.x map all the section except DSD0 will be shown as not present
 	 * This part will be used by calibration tool to detect the number of DSD present in Flash.
 	 */
-	if (IsFlash2x(Adapter) == FALSE) {
+	if (IsFlash2x(Adapter) == false) {
 		psFlash2xBitMap->ISO_IMAGE2 = 0;
 		psFlash2xBitMap->ISO_IMAGE1 = 0;
 		psFlash2xBitMap->DSD0 = FLASH2X_SECTION_VALID | FLASH2X_SECTION_ACT | FLASH2X_SECTION_PRESENT; /* 0xF; 0000(Reseved)1(Active)0(RW)1(valid)1(present) */
@@ -3143,10 +3143,10 @@ int BcmGetFlash2xSectionalBitMap(struct bcm_mini_adapter *Adapter, struct bcm_fl
 			psFlash2xBitMap->ISO_IMAGE2 |= FLASH2X_SECTION_VALID;
 
 		/* Calculation for extrating the Access permission */
-		if (IsSectionWritable(Adapter, ISO_IMAGE2) == FALSE)
+		if (IsSectionWritable(Adapter, ISO_IMAGE2) == false)
 			psFlash2xBitMap->ISO_IMAGE2 |= FLASH2X_SECTION_RO;
 
-		if (SetActiveISODone == FALSE && uiHighestPriISO == ISO_IMAGE2) {
+		if (SetActiveISODone == false && uiHighestPriISO == ISO_IMAGE2) {
 			psFlash2xBitMap->ISO_IMAGE2 |= FLASH2X_SECTION_ACT;
 			SetActiveISODone = TRUE;
 		}
@@ -3163,10 +3163,10 @@ int BcmGetFlash2xSectionalBitMap(struct bcm_mini_adapter *Adapter, struct bcm_fl
 			psFlash2xBitMap->ISO_IMAGE1 |= FLASH2X_SECTION_VALID;
 
 		/* Calculation for extrating the Access permission */
-		if (IsSectionWritable(Adapter, ISO_IMAGE1) == FALSE)
+		if (IsSectionWritable(Adapter, ISO_IMAGE1) == false)
 			psFlash2xBitMap->ISO_IMAGE1 |= FLASH2X_SECTION_RO;
 
-		if (SetActiveISODone == FALSE && uiHighestPriISO == ISO_IMAGE1) {
+		if (SetActiveISODone == false && uiHighestPriISO == ISO_IMAGE1) {
 			psFlash2xBitMap->ISO_IMAGE1 |= FLASH2X_SECTION_ACT;
 			SetActiveISODone = TRUE;
 		}
@@ -3183,11 +3183,11 @@ int BcmGetFlash2xSectionalBitMap(struct bcm_mini_adapter *Adapter, struct bcm_fl
 			psFlash2xBitMap->DSD2 |= FLASH2X_SECTION_VALID;
 
 		/* Calculation for extrating the Access permission */
-		if (IsSectionWritable(Adapter, DSD2) == FALSE) {
+		if (IsSectionWritable(Adapter, DSD2) == false) {
 			psFlash2xBitMap->DSD2 |= FLASH2X_SECTION_RO;
 		} else {
 			/* Means section is writable */
-			if ((SetActiveDSDDone == FALSE) && (uiHighestPriDSD == DSD2)) {
+			if ((SetActiveDSDDone == false) && (uiHighestPriDSD == DSD2)) {
 				psFlash2xBitMap->DSD2 |= FLASH2X_SECTION_ACT;
 				SetActiveDSDDone = TRUE;
 			}
@@ -3205,11 +3205,11 @@ int BcmGetFlash2xSectionalBitMap(struct bcm_mini_adapter *Adapter, struct bcm_fl
 			psFlash2xBitMap->DSD1 |= FLASH2X_SECTION_VALID;
 
 		/* Calculation for extrating the Access permission */
-		if (IsSectionWritable(Adapter, DSD1) == FALSE) {
+		if (IsSectionWritable(Adapter, DSD1) == false) {
 			psFlash2xBitMap->DSD1 |= FLASH2X_SECTION_RO;
 		} else {
 			/* Means section is writable */
-			if ((SetActiveDSDDone == FALSE) && (uiHighestPriDSD == DSD1)) {
+			if ((SetActiveDSDDone == false) && (uiHighestPriDSD == DSD1)) {
 				psFlash2xBitMap->DSD1 |= FLASH2X_SECTION_ACT;
 				SetActiveDSDDone = TRUE;
 			}
@@ -3227,11 +3227,11 @@ int BcmGetFlash2xSectionalBitMap(struct bcm_mini_adapter *Adapter, struct bcm_fl
 			psFlash2xBitMap->DSD0 |= FLASH2X_SECTION_VALID;
 
 		/* Setting Access permission */
-		if (IsSectionWritable(Adapter, DSD0) == FALSE) {
+		if (IsSectionWritable(Adapter, DSD0) == false) {
 			psFlash2xBitMap->DSD0 |= FLASH2X_SECTION_RO;
 		} else {
 			/* Means section is writable */
-			if ((SetActiveDSDDone == FALSE) && (uiHighestPriDSD == DSD0)) {
+			if ((SetActiveDSDDone == false) && (uiHighestPriDSD == DSD0)) {
 				psFlash2xBitMap->DSD0 |= FLASH2X_SECTION_ACT;
 				SetActiveDSDDone = TRUE;
 			}
@@ -3249,7 +3249,7 @@ int BcmGetFlash2xSectionalBitMap(struct bcm_mini_adapter *Adapter, struct bcm_fl
 		psFlash2xBitMap->VSA0 |= FLASH2X_SECTION_VALID;
 
 		/* Calculation for extrating the Access permission */
-		if (IsSectionWritable(Adapter, VSA0) == FALSE)
+		if (IsSectionWritable(Adapter, VSA0) == false)
 			psFlash2xBitMap->VSA0 |=  FLASH2X_SECTION_RO;
 
 		/* By Default section is Active */
@@ -3267,7 +3267,7 @@ int BcmGetFlash2xSectionalBitMap(struct bcm_mini_adapter *Adapter, struct bcm_fl
 		psFlash2xBitMap->VSA1 |= FLASH2X_SECTION_VALID;
 
 		/* Checking For Access permission */
-		if (IsSectionWritable(Adapter, VSA1) == FALSE)
+		if (IsSectionWritable(Adapter, VSA1) == false)
 			psFlash2xBitMap->VSA1 |= FLASH2X_SECTION_RO;
 
 		/* By Default section is Active */
@@ -3285,7 +3285,7 @@ int BcmGetFlash2xSectionalBitMap(struct bcm_mini_adapter *Adapter, struct bcm_fl
 		psFlash2xBitMap->VSA2 |= FLASH2X_SECTION_VALID;
 
 		/* Checking For Access permission */
-		if (IsSectionWritable(Adapter, VSA2) == FALSE)
+		if (IsSectionWritable(Adapter, VSA2) == false)
 			psFlash2xBitMap->VSA2 |= FLASH2X_SECTION_RO;
 
 		/* By Default section is Active */
@@ -3303,7 +3303,7 @@ int BcmGetFlash2xSectionalBitMap(struct bcm_mini_adapter *Adapter, struct bcm_fl
 		psFlash2xBitMap->SCSI |= FLASH2X_SECTION_VALID;
 
 		/* Checking For Access permission */
-		if (IsSectionWritable(Adapter, SCSI) == FALSE)
+		if (IsSectionWritable(Adapter, SCSI) == false)
 			psFlash2xBitMap->SCSI |= FLASH2X_SECTION_RO;
 
 		/* By Default section is Active */
@@ -3321,7 +3321,7 @@ int BcmGetFlash2xSectionalBitMap(struct bcm_mini_adapter *Adapter, struct bcm_fl
 		psFlash2xBitMap->CONTROL_SECTION |= FLASH2X_SECTION_VALID;
 
 		/* Checking For Access permission */
-		if (IsSectionWritable(Adapter, CONTROL_SECTION) == FALSE)
+		if (IsSectionWritable(Adapter, CONTROL_SECTION) == false)
 			psFlash2xBitMap->CONTROL_SECTION |= FLASH2X_SECTION_RO;
 
 		/* By Default section is Active */
@@ -3517,7 +3517,7 @@ int BcmSetActiveSection(struct bcm_mini_adapter *Adapter, enum bcm_flash2x_secti
 		break;
 	}
 
-	Adapter->bHeaderChangeAllowed = FALSE;
+	Adapter->bHeaderChangeAllowed = false;
 	return Status;
 }
 
@@ -3536,7 +3536,7 @@ int BcmCopyISO(struct bcm_mini_adapter *Adapter, struct bcm_flash2x_copy_section
 	enum bcm_flash2x_section_val eISOReadPart = 0, eISOWritePart = 0;
 	unsigned int uiReadOffsetWithinPart = 0, uiWriteOffsetWithinPart = 0;
 	unsigned int uiTotalDataToCopy = 0;
-	bool IsThisHeaderSector = FALSE;
+	bool IsThisHeaderSector = false;
 	unsigned int sigOffset = 0;
 	unsigned int ISOLength = 0;
 	unsigned int Status = STATUS_SUCCESS;
@@ -3669,14 +3669,14 @@ int BcmCopyISO(struct bcm_mini_adapter *Adapter, struct bcm_flash2x_copy_section
 				break;
 			}
 
-			Adapter->bHeaderChangeAllowed = FALSE;
+			Adapter->bHeaderChangeAllowed = false;
 			if (IsThisHeaderSector == TRUE) {
 				WriteToFlashWithoutSectorErase(Adapter,
 							SigBuff,
 							eISOWritePart,
 							sigOffset,
 							MAX_RW_SIZE);
-				IsThisHeaderSector = FALSE;
+				IsThisHeaderSector = false;
 			}
 			/* subtracting the written Data */
 			uiTotalDataToCopy = uiTotalDataToCopy - Adapter->uiSectorSize;
@@ -3782,7 +3782,7 @@ int BcmCopyISO(struct bcm_mini_adapter *Adapter, struct bcm_flash2x_copy_section
 				break;
 			}
 
-			Adapter->bHeaderChangeAllowed = FALSE;
+			Adapter->bHeaderChangeAllowed = false;
 			if (IsThisHeaderSector == TRUE) {
 				WriteToFlashWithoutSectorErase(Adapter,
 							SigBuff,
@@ -3790,7 +3790,7 @@ int BcmCopyISO(struct bcm_mini_adapter *Adapter, struct bcm_flash2x_copy_section
 							sigOffset,
 							MAX_RW_SIZE);
 
-				IsThisHeaderSector = FALSE;
+				IsThisHeaderSector = false;
 			}
 
 			/* subtracting the written Data */
@@ -3848,13 +3848,13 @@ int BcmFlash2xWriteSig(struct bcm_mini_adapter *Adapter, enum bcm_flash2x_sectio
 	unsigned int uiOffset = 0;
 
 	/* struct bcm_dsd_header dsdHeader = {0}; */
-	if (Adapter->bSigCorrupted == FALSE) {
+	if (Adapter->bSigCorrupted == false) {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, NVM_RW, DBG_LVL_ALL, "Signature is not corrupted by driver, hence not restoring\n");
 		return STATUS_SUCCESS;
 	}
 
-	if (Adapter->bAllDSDWriteAllow == FALSE) {
-		if (IsSectionWritable(Adapter, eFlashSectionVal) == FALSE) {
+	if (Adapter->bAllDSDWriteAllow == false) {
+		if (IsSectionWritable(Adapter, eFlashSectionVal) == false) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Section is not Writable...Hence can't Write signature");
 			return SECTOR_IS_NOT_WRITABLE;
 		}
@@ -3886,9 +3886,9 @@ int BcmFlash2xWriteSig(struct bcm_mini_adapter *Adapter, enum bcm_flash2x_sectio
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, NVM_RW, DBG_LVL_ALL, "Restoring the signature");
 
 	Adapter->bHeaderChangeAllowed = TRUE;
-	Adapter->bSigCorrupted = FALSE;
+	Adapter->bSigCorrupted = false;
 	BcmFlash2xBulkWrite(Adapter, &uiSignature, eFlashSectionVal, uiOffset, SIGNATURE_SIZE, TRUE);
-	Adapter->bHeaderChangeAllowed = FALSE;
+	Adapter->bHeaderChangeAllowed = false;
 
 	return STATUS_SUCCESS;
 }
@@ -3899,7 +3899,7 @@ int BcmFlash2xWriteSig(struct bcm_mini_adapter *Adapter, enum bcm_flash2x_sectio
  * @Adapater :- Bcm Driver Private Data Structure
  * @psFlash2xReadWrite :-Flash2x Read/write structure pointer
  *
- * Return values:-Return TRUE is request is valid else FALSE.
+ * Return values:-Return TRUE is request is valid else false.
  */
 
 int validateFlash2xReadWrite(struct bcm_mini_adapter *Adapter, struct bcm_flash2x_readwrite *psFlash2xReadWrite)
@@ -3912,7 +3912,7 @@ int validateFlash2xReadWrite(struct bcm_mini_adapter *Adapter, struct bcm_flash2
 
 	if (IsSectionExistInFlash(Adapter, psFlash2xReadWrite->Section) != TRUE) {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Section<%x> does not exixt in Flash", psFlash2xReadWrite->Section);
-		return FALSE;
+		return false;
 	}
 	uiSectStartOffset = BcmGetSectionValStartOffset(Adapter, psFlash2xReadWrite->Section);
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, NVM_RW, DBG_LVL_ALL, "Start offset :%x ,section :%d\n", uiSectStartOffset, psFlash2xReadWrite->Section);
@@ -3949,7 +3949,7 @@ int validateFlash2xReadWrite(struct bcm_mini_adapter *Adapter, struct bcm_flash2
 		return TRUE;
 	else {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Invalid Request....");
-		return FALSE;
+		return false;
 	}
 }
 
@@ -3966,7 +3966,7 @@ int IsFlash2x(struct bcm_mini_adapter *Adapter)
 	if (Adapter->uiFlashLayoutMajorVersion >= FLASH_2X_MAJOR_NUMBER)
 		return TRUE;
 	else
-		return FALSE;
+		return false;
 }
 
 /*
@@ -3986,7 +3986,7 @@ static int GetFlashBaseAddr(struct bcm_mini_adapter *Adapter)
 		 * For All Valid Flash Versions... except 1.1, take the value from FlashBaseAddr
 		 * In case of Raw Read... use the default value
 		 */
-		if (Adapter->uiFlashLayoutMajorVersion && (Adapter->bFlashRawRead == FALSE) &&
+		if (Adapter->uiFlashLayoutMajorVersion && (Adapter->bFlashRawRead == false) &&
 			!((Adapter->uiFlashLayoutMajorVersion == 1) && (Adapter->uiFlashLayoutMinorVersion == 1)))
 			uiBaseAddr = Adapter->uiFlashBaseAdd;
 		else
@@ -3996,7 +3996,7 @@ static int GetFlashBaseAddr(struct bcm_mini_adapter *Adapter)
 		 * For All Valid Flash Versions... except 1.1, take the value from FlashBaseAddr
 		 * In case of Raw Read... use the default value
 		 */
-		if (Adapter->uiFlashLayoutMajorVersion && (Adapter->bFlashRawRead == FALSE) &&
+		if (Adapter->uiFlashLayoutMajorVersion && (Adapter->bFlashRawRead == false) &&
 			!((Adapter->uiFlashLayoutMajorVersion == 1) && (Adapter->uiFlashLayoutMinorVersion == 1)))
 			uiBaseAddr = Adapter->uiFlashBaseAdd | FLASH_CONTIGIOUS_START_ADDR_BEFORE_INIT;
 		else
@@ -4094,7 +4094,7 @@ int BcmCopySection(struct bcm_mini_adapter *Adapter,
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Read failed at offset :%d for NOB :%d", SrcSection, BytesToBeCopied);
 			break;
 		}
-		Status = BcmFlash2xBulkWrite(Adapter, (PUINT)pBuff, DstSection, offset, BytesToBeCopied, FALSE);
+		Status = BcmFlash2xBulkWrite(Adapter, (PUINT)pBuff, DstSection, offset, BytesToBeCopied, false);
 		if (Status) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Write failed at offset :%d for NOB :%d", DstSection, BytesToBeCopied);
 			break;
@@ -4110,7 +4110,7 @@ int BcmCopySection(struct bcm_mini_adapter *Adapter,
 	} while (numOfBytes > 0);
 
 	kfree(pBuff);
-	Adapter->bHeaderChangeAllowed = FALSE;
+	Adapter->bHeaderChangeAllowed = false;
 
 	return Status;
 }
@@ -4129,7 +4129,7 @@ int BcmCopySection(struct bcm_mini_adapter *Adapter,
 int SaveHeaderIfPresent(struct bcm_mini_adapter *Adapter, PUCHAR pBuff, unsigned int uiOffset)
 {
 	unsigned int offsetToProtect = 0, HeaderSizeToProtect = 0;
-	bool bHasHeader = FALSE;
+	bool bHasHeader = false;
 	PUCHAR pTempBuff = NULL;
 	unsigned int uiSectAlignAddr = 0;
 	unsigned int sig = 0;
@@ -4153,7 +4153,7 @@ int SaveHeaderIfPresent(struct bcm_mini_adapter *Adapter, PUCHAR pBuff, unsigned
 		bHasHeader = TRUE;
 	}
 	/* If Header is present overwrite passed buffer with this */
-	if (bHasHeader && (Adapter->bHeaderChangeAllowed == FALSE)) {
+	if (bHasHeader && (Adapter->bHeaderChangeAllowed == false)) {
 		pTempBuff = kzalloc(HeaderSizeToProtect, GFP_KERNEL);
 		if (!pTempBuff) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Memory allocation failed");
@@ -4172,13 +4172,13 @@ int SaveHeaderIfPresent(struct bcm_mini_adapter *Adapter, PUCHAR pBuff, unsigned
 		sig = ntohl(sig);
 		if ((sig & 0xFF000000) != CORRUPTED_PATTERN) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, NVM_RW, DBG_LVL_ALL, "Desired pattern is not at sig offset. Hence won't restore");
-			Adapter->bSigCorrupted = FALSE;
+			Adapter->bSigCorrupted = false;
 			return STATUS_SUCCESS;
 		}
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, NVM_RW, DBG_LVL_ALL, " Corrupted sig is :%X", sig);
 		*((PUINT)(pBuff + offsetToProtect + FIELD_OFFSET_IN_HEADER(struct bcm_dsd_header *, DSDImageMagicNumber))) = htonl(DSD_IMAGE_MAGIC_NUMBER);
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, NVM_RW, DBG_LVL_ALL, "Restoring the signature in Header Write only");
-		Adapter->bSigCorrupted = FALSE;
+		Adapter->bSigCorrupted = false;
 	}
 
 	return STATUS_SUCCESS;
@@ -4471,17 +4471,17 @@ int WriteToFlashWithoutSectorErase(struct bcm_mini_adapter *Adapter,
 
 bool IsSectionExistInFlash(struct bcm_mini_adapter *Adapter, enum bcm_flash2x_section_val section)
 {
-	bool SectionPresent = FALSE;
+	bool SectionPresent = false;
 
 	switch (section) {
 	case ISO_IMAGE1:
 		if ((Adapter->psFlash2xCSInfo->OffsetISOImage1Part1Start != UNINIT_PTR_IN_CS) &&
-			(IsNonCDLessDevice(Adapter) == FALSE))
+			(IsNonCDLessDevice(Adapter) == false))
 			SectionPresent = TRUE;
 		break;
 	case ISO_IMAGE2:
 		if ((Adapter->psFlash2xCSInfo->OffsetISOImage2Part1Start != UNINIT_PTR_IN_CS) &&
-			(IsNonCDLessDevice(Adapter) == FALSE))
+			(IsNonCDLessDevice(Adapter) == false))
 			SectionPresent = TRUE;
 		break;
 	case DSD0:
@@ -4518,7 +4518,7 @@ bool IsSectionExistInFlash(struct bcm_mini_adapter *Adapter, enum bcm_flash2x_se
 		break;
 	default:
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Section Does not exist in Flash 2.x");
-		SectionPresent =  FALSE;
+		SectionPresent =  false;
 	}
 
 	return SectionPresent;
@@ -4527,17 +4527,17 @@ bool IsSectionExistInFlash(struct bcm_mini_adapter *Adapter, enum bcm_flash2x_se
 int IsSectionWritable(struct bcm_mini_adapter *Adapter, enum bcm_flash2x_section_val Section)
 {
 	int offset = STATUS_FAILURE;
-	int Status = FALSE;
+	int Status = false;
 
-	if (IsSectionExistInFlash(Adapter, Section) == FALSE) {
+	if (IsSectionExistInFlash(Adapter, Section) == false) {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Section <%d> does not exixt", Section);
-		return FALSE;
+		return false;
 	}
 
 	offset = BcmGetSectionValStartOffset(Adapter, Section);
 	if (offset == INVALID_OFFSET) {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Section<%d> does not exixt", Section);
-		return FALSE;
+		return false;
 	}
 
 	if (IsSectionExistInVendorInfo(Adapter, Section))
@@ -4555,8 +4555,8 @@ static int CorruptDSDSig(struct bcm_mini_adapter *Adapter, enum bcm_flash2x_sect
 	unsigned int BlockStatus = 0;
 	unsigned int uiSectAlignAddr = 0;
 
-	Adapter->bSigCorrupted = FALSE;
-	if (Adapter->bAllDSDWriteAllow == FALSE) {
+	Adapter->bSigCorrupted = false;
+	if (Adapter->bAllDSDWriteAllow == false) {
 		if (IsSectionWritable(Adapter, eFlash2xSectionVal) != TRUE) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Section is not Writable...Hence can't Corrupt signature");
 			return SECTOR_IS_NOT_WRITABLE;
@@ -4615,7 +4615,7 @@ static int CorruptISOSig(struct bcm_mini_adapter *Adapter, enum bcm_flash2x_sect
 	unsigned int sig = 0;
 	unsigned int uiOffset = 0;
 
-	Adapter->bSigCorrupted = FALSE;
+	Adapter->bSigCorrupted = false;
 
 	if (IsSectionWritable(Adapter, eFlash2xSectionVal) != TRUE) {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Section is not Writable...Hence can't Corrupt signature");
@@ -4661,5 +4661,5 @@ bool IsNonCDLessDevice(struct bcm_mini_adapter *Adapter)
 	if (Adapter->psFlash2xCSInfo->IsCDLessDeviceBootSig == NON_CDLESS_DEVICE_BOOT_SIG)
 		return TRUE;
 	else
-		return FALSE;
+		return false;
 }
-- 
cgit 


From 61ead61f2692d04539a9c37970c5ae47fbf390a5 Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Tue, 22 Oct 2013 02:37:14 +0300
Subject: staging: rtl8187se: fix checkpatch space and tab warnings

This patch fixes checkpatch issues regarding space and tab like:

WARNING: please, no spaces at the start of a line
ERROR: code indent should use tabs where possible
WARNING: suspect code indent for conditional statements (2, 4)
ERROR: space required before the open parenthesis '('
ERROR: space required after that ',' (ctx:VxO)

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c | 82 +++++++++++-----------
 1 file changed, 42 insertions(+), 40 deletions(-)

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
index 94e355940522..655e27bb699c 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
@@ -186,8 +186,8 @@ int ieee80211_encrypt_fragment(
 	int res;
 
  /*added to care about null crypt condition, to solve that system hangs when shared keys error*/
-        if (!crypt || !crypt->ops)
-        return -1;
+	if (!crypt || !crypt->ops)
+		return -1;
 
 #ifdef CONFIG_IEEE80211_CRYPT_TKIP
 	struct ieee80211_hdr_4addr *header;
@@ -276,36 +276,36 @@ static struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size,
 static int
 ieee80211_classify(struct sk_buff *skb, struct ieee80211_network *network)
 {
-  struct ether_header *eh = (struct ether_header *)skb->data;
-  unsigned int wme_UP = 0;
+	struct ether_header *eh = (struct ether_header *)skb->data;
+	unsigned int wme_UP = 0;
 
-  if(!network->QoS_Enable) {
-     skb->priority = 0;
-     return(wme_UP);
-  }
+	if (!network->QoS_Enable) {
+		skb->priority = 0;
+		return(wme_UP);
+	}
 
-  if(eh->ether_type == __constant_htons(ETHERTYPE_IP)) {
-    const struct iphdr *ih = (struct iphdr *)(skb->data + \
+	if (eh->ether_type == __constant_htons(ETHERTYPE_IP)) {
+		const struct iphdr *ih = (struct iphdr *)(skb->data + \
 		    sizeof(struct ether_header));
-    wme_UP = (ih->tos >> 5)&0x07;
-  } else if (vlan_tx_tag_present(skb)) {/* vtag packet */
+		wme_UP = (ih->tos >> 5)&0x07;
+	} else if (vlan_tx_tag_present(skb)) {/* vtag packet */
 #ifndef VLAN_PRI_SHIFT
 #define VLAN_PRI_SHIFT  13              /* Shift to find VLAN user priority */
 #define VLAN_PRI_MASK   7               /* Mask for user priority bits in VLAN */
 #endif
-	u32 tag = vlan_tx_tag_get(skb);
-	wme_UP = (tag >> VLAN_PRI_SHIFT) & VLAN_PRI_MASK;
-  } else if(ETH_P_PAE ==  ntohs(((struct ethhdr *)skb->data)->h_proto)) {
-    wme_UP = 7;
-  }
-
-  skb->priority = wme_UP;
-  return(wme_UP);
+		u32 tag = vlan_tx_tag_get(skb);
+		wme_UP = (tag >> VLAN_PRI_SHIFT) & VLAN_PRI_MASK;
+	} else if (ETH_P_PAE ==  ntohs(((struct ethhdr *)skb->data)->h_proto)) {
+		wme_UP = 7;
+	}
+
+	skb->priority = wme_UP;
+	return(wme_UP);
 }
 
 /* SKBs are added to the ieee->tx_queue. */
 int ieee80211_rtl_xmit(struct sk_buff *skb,
-		   struct net_device *dev)
+		       struct net_device *dev)
 {
 	struct ieee80211_device *ieee = netdev_priv(dev);
 	struct ieee80211_txb *txb = NULL;
@@ -331,15 +331,17 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 	 * If there is no driver handler to take the TXB, don't bother
 	 * creating it...
 	 */
-	if ((!ieee->hard_start_xmit && !(ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE))||
-	   ((!ieee->softmac_data_hard_start_xmit && (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)))) {
+	if ((!ieee->hard_start_xmit &&
+	     !(ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)) ||
+	    ((!ieee->softmac_data_hard_start_xmit &&
+	      (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)))) {
 		printk(KERN_WARNING "%s: No xmit handler.\n",
 		       ieee->dev->name);
 		goto success;
 	}
 
 	ieee80211_classify(skb,&ieee->current_network);
-	if(likely(ieee->raw_tx == 0)){
+	if (likely(ieee->raw_tx == 0)){
 
 		if (unlikely(skb->len < SNAP_SIZE + sizeof(u16))) {
 			printk(KERN_WARNING "%s: skb too small (%d).\n",
@@ -379,7 +381,7 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 		/* Determine total amount of storage required for TXB packets */
 		bytes = skb->len + SNAP_SIZE + sizeof(u16);
 
-		if(ieee->current_network.QoS_Enable) {
+		if (ieee->current_network.QoS_Enable) {
 			if (encrypt)
 				fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_QOS_DATA |
 					IEEE80211_FCTL_WEP;
@@ -490,9 +492,9 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 				/* The last fragment takes the remaining length */
 				bytes = bytes_last_frag;
 			}
-			if(ieee->current_network.QoS_Enable) {
+			if (ieee->current_network.QoS_Enable) {
 			  /*
-			   * add 1 only indicate to corresponding seq number 
+			   * add 1 only indicate to corresponding seq number
 			   * control 2006/7/12
 			   */
 			  frag_hdr->seq_ctl = cpu_to_le16(ieee->seq_ctrl[UP2AC(skb->priority)+1]<<4 | i);
@@ -526,17 +528,17 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 		}
 		/* Advance sequence number in data frame. */
 		if (ieee->current_network.QoS_Enable) {
-		  if (ieee->seq_ctrl[UP2AC(skb->priority) + 1] == 0xFFF)
-			ieee->seq_ctrl[UP2AC(skb->priority) + 1] = 0;
-		  else
-			ieee->seq_ctrl[UP2AC(skb->priority) + 1]++;
+			if (ieee->seq_ctrl[UP2AC(skb->priority) + 1] == 0xFFF)
+				ieee->seq_ctrl[UP2AC(skb->priority) + 1] = 0;
+			else
+				ieee->seq_ctrl[UP2AC(skb->priority) + 1]++;
 		} else {
-  		  if (ieee->seq_ctrl[0] == 0xFFF)
-			ieee->seq_ctrl[0] = 0;
-		  else
-			ieee->seq_ctrl[0]++;
+			if (ieee->seq_ctrl[0] == 0xFFF)
+				ieee->seq_ctrl[0] = 0;
+			else
+				ieee->seq_ctrl[0]++;
 		}
-	}else{
+	} else {
 		if (unlikely(skb->len < sizeof(struct ieee80211_hdr_3addr))) {
 			printk(KERN_WARNING "%s: skb too small (%d).\n",
 			ieee->dev->name, skb->len);
@@ -544,7 +546,7 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 		}
 
 		txb = ieee80211_alloc_txb(1, skb->len, GFP_ATOMIC);
-		if(!txb){
+		if (!txb) {
 			printk(KERN_WARNING "%s: Could not allocate TXB\n",
 			ieee->dev->name);
 			goto failed;
@@ -552,16 +554,16 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 
 		txb->encrypted = 0;
 		txb->payload_size = skb->len;
-		memcpy(skb_put(txb->fragments[0],skb->len), skb->data, skb->len);
+		memcpy(skb_put(txb->fragments[0], skb->len), skb->data, skb->len);
 	}
 
  success:
 	spin_unlock_irqrestore(&ieee->lock, flags);
 		dev_kfree_skb_any(skb);
 	if (txb) {
-		if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE){
+		if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE) {
 			ieee80211_softmac_xmit(txb, ieee);
-		}else{
+		} else {
 			if ((*ieee->hard_start_xmit)(txb, dev) == 0) {
 				stats->tx_packets++;
 				stats->tx_bytes += txb->payload_size;
-- 
cgit 


From 9c1822d7380bf284bc608c1b769ff2318cffff7c Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Tue, 22 Oct 2013 02:37:15 +0300
Subject: staging: rtl8187se: open brace following function declarations go on
 the next line

This patch fixes the following checkpatch error:

staging/rtl8187se/ieee80211/ieee80211_tx.c:232:
ERROR: open brace '{' following function declarations go on the next
line

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
index 655e27bb699c..362673c683f0 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
@@ -228,7 +228,8 @@ int ieee80211_encrypt_fragment(
 }
 
 
-void ieee80211_txb_free(struct ieee80211_txb *txb) {
+void ieee80211_txb_free(struct ieee80211_txb *txb)
+{
 	int i;
 	if (unlikely(!txb))
 		return;
-- 
cgit 


From fa520f01b5b729ccfab415fb406469bb31e9cbb9 Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Tue, 22 Oct 2013 02:37:16 +0300
Subject: staging: rtl8187se: fix comments over 80 characters

This patch rearranges comments that are over 80 characters.

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
index 362673c683f0..4c9ac43b28e9 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
@@ -185,7 +185,10 @@ int ieee80211_encrypt_fragment(
 	struct ieee80211_crypt_data* crypt = ieee->crypt[ieee->tx_keyidx];
 	int res;
 
- /*added to care about null crypt condition, to solve that system hangs when shared keys error*/
+	/*
+	 * added to care about null crypt condition, to solve that system hangs
+	 * when shared keys error
+	 */
 	if (!crypt || !crypt->ops)
 		return -1;
 
@@ -203,10 +206,15 @@ int ieee80211_encrypt_fragment(
 		return -1;
 	}
 #endif
-	/* To encrypt, frame format is:
-	 * IV (4 bytes), clear payload (including SNAP), ICV (4 bytes) */
+	/*
+	 * To encrypt, frame format is:
+	 * IV (4 bytes), clear payload (including SNAP), ICV (4 bytes)
+	 */
 
-	/* PR: FIXME: Copied from hostap. Check fragmentation/MSDU/MPDU encryption. */
+	/*
+	 * PR: FIXME: Copied from hostap. Check fragmentation/MSDU/MPDU
+	 * encryption.
+	 */
 	/* Host-based IEEE 802.11 fragmentation for TX is not yet supported, so
 	 * call both MSDU and MPDU encryption functions from here. */
 	atomic_inc(&crypt->refcnt);
-- 
cgit 


From 69e222d98e67b0f898a471d0498e1005f34112c4 Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Tue, 22 Oct 2013 02:37:17 +0300
Subject: staging: rtl8187se: else should follow close brace '}

This patch fixes the following checkpatch warning:
ERROR: else should follow close brace '}'

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
index 4c9ac43b28e9..ae725944a9c0 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
@@ -428,8 +428,7 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 		if (is_multicast_ether_addr(header.addr1)) {
 			frag_size = MAX_FRAG_THRESHOLD;
 			qos_ctl = QOS_CTL_NOTCONTAIN_ACK;
-		}
-		else {
+		} else {
 			/* default:392 */
 			frag_size = ieee->fts;
 			qos_ctl = 0;
-- 
cgit 


From ea748af2ce728679b15007dea4f588eefb63c78a Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Tue, 22 Oct 2013 02:37:18 +0300
Subject: staging: rtl8187se: fix conditional statement indent

This patch fixes the following checkpatch warning:
WARNING: suspect code indent for conditional statements (24, 26)

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
index ae725944a9c0..2fa89e0baefd 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
@@ -501,13 +501,13 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 				bytes = bytes_last_frag;
 			}
 			if (ieee->current_network.QoS_Enable) {
-			  /*
-			   * add 1 only indicate to corresponding seq number
-			   * control 2006/7/12
-			   */
-			  frag_hdr->seq_ctl = cpu_to_le16(ieee->seq_ctrl[UP2AC(skb->priority)+1]<<4 | i);
+				/*
+				 * add 1 only indicate to corresponding seq
+				 * number control 2006/7/12
+				 */
+				frag_hdr->seq_ctl = cpu_to_le16(ieee->seq_ctrl[UP2AC(skb->priority)+1]<<4 | i);
 			} else {
-			  frag_hdr->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0]<<4 | i);
+				frag_hdr->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0]<<4 | i);
 			}
 
 			/* Put a SNAP header on the first fragment */
-- 
cgit 


From 5cae05cc9f126ae4a0f79798cff9ca3a77bb7006 Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Tue, 22 Oct 2013 02:37:19 +0300
Subject: staging: rtl8187se: remove an unnecessary line continuation

This patch fixed the following checkpatch warning:
WARNING: Avoid unnecessary line continuations

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
index 2fa89e0baefd..edcce26db7b0 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
@@ -294,7 +294,7 @@ ieee80211_classify(struct sk_buff *skb, struct ieee80211_network *network)
 	}
 
 	if (eh->ether_type == __constant_htons(ETHERTYPE_IP)) {
-		const struct iphdr *ih = (struct iphdr *)(skb->data + \
+		const struct iphdr *ih = (struct iphdr *)(skb->data +
 		    sizeof(struct ether_header));
 		wme_UP = (ih->tos >> 5)&0x07;
 	} else if (vlan_tx_tag_present(skb)) {/* vtag packet */
-- 
cgit 


From bebe4a398f784858705b40f343107366fa5a5b26 Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Tue, 22 Oct 2013 02:37:20 +0300
Subject: staging: rtl8187se: fixup multi-line comment

This patch ensures that all multi-line comments are consistent with the Linux
kernel coding style for long (multi-line) comments.

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c | 38 +++++++++++++---------
 1 file changed, 22 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
index edcce26db7b0..372e22726cec 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
@@ -209,14 +209,13 @@ int ieee80211_encrypt_fragment(
 	/*
 	 * To encrypt, frame format is:
 	 * IV (4 bytes), clear payload (including SNAP), ICV (4 bytes)
-	 */
-
-	/*
+	 *
 	 * PR: FIXME: Copied from hostap. Check fragmentation/MSDU/MPDU
 	 * encryption.
+	 *
+	 * Host-based IEEE 802.11 fragmentation for TX is not yet supported, so
+	 * call both MSDU and MPDU encryption functions from here.
 	 */
-	/* Host-based IEEE 802.11 fragmentation for TX is not yet supported, so
-	 * call both MSDU and MPDU encryption functions from here. */
 	atomic_inc(&crypt->refcnt);
 	res = 0;
 	if (crypt->ops->encrypt_msdu)
@@ -407,14 +406,15 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 
 		if (ieee->iw_mode == IW_MODE_INFRA) {
 			fc |= IEEE80211_FCTL_TODS;
-			/* To DS: Addr1 = BSSID, Addr2 = SA,
-			Addr3 = DA */
+			/* To DS: Addr1 = BSSID, Addr2 = SA, Addr3 = DA */
 			memcpy(&header.addr1, ieee->current_network.bssid, ETH_ALEN);
 			memcpy(&header.addr2, &src, ETH_ALEN);
 			memcpy(&header.addr3, &dest, ETH_ALEN);
 		} else if (ieee->iw_mode == IW_MODE_ADHOC) {
-			/* not From/To DS: Addr1 = DA, Addr2 = SA,
-			Addr3 = BSSID */
+			/*
+			 * not From/To DS: Addr1 = DA, Addr2 = SA,
+			 * Addr3 = BSSID
+			 */
 			memcpy(&header.addr1, dest, ETH_ALEN);
 			memcpy(&header.addr2, src, ETH_ALEN);
 			memcpy(&header.addr3, ieee->current_network.bssid, ETH_ALEN);
@@ -459,8 +459,10 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 			bytes_per_frag -= crypt->ops->extra_prefix_len +
 				crypt->ops->extra_postfix_len;
 
-		/* Number of fragments is the total bytes_per_frag /
-		* payload_per_fragment */
+		/*
+		 * Number of fragments is the total bytes_per_frag /
+		 * payload_per_fragment
+		 */
 		nr_frags = bytes / bytes_per_frag;
 		bytes_last_frag = bytes % bytes_per_frag;
 		if (bytes_last_frag)
@@ -468,9 +470,11 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 		else
 			bytes_last_frag = bytes_per_frag;
 
-		/* When we allocate the TXB we allocate enough space for the reserve
-		* and full fragment bytes (bytes_per_frag doesn't include prefix,
-		* postfix, header, FCS, etc.) */
+		/*
+		 * When we allocate the TXB we allocate enough space for the 
+		 * reserve and full fragment bytes (bytes_per_frag doesn't
+		 * include prefix, postfix, header, FCS, etc.)
+		 */
 		txb = ieee80211_alloc_txb(nr_frags, frag_size, GFP_ATOMIC);
 		if (unlikely(!txb)) {
 			printk(KERN_WARNING "%s: Could not allocate TXB\n",
@@ -489,8 +493,10 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 			frag_hdr = (struct ieee80211_hdr_3addrqos *)skb_put(skb_frag, hdr_len);
 			memcpy(frag_hdr, &header, hdr_len);
 
-			/* If this is not the last fragment, then add the MOREFRAGS
-			* bit to the frame control */
+			/*
+			 * If this is not the last fragment, then add the MOREFRAGS
+			 * bit to the frame control
+			 */
 			if (i != nr_frags - 1) {
 				frag_hdr->frame_ctl = cpu_to_le16(
 					fc | IEEE80211_FCTL_MOREFRAGS);
-- 
cgit 


From fe8433bfab041f98a29cfc182efdbbb5a98ccfc6 Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Tue, 22 Oct 2013 02:37:21 +0300
Subject: staging: rtl8187se: fix lines over 80 characters

This patch fixes lines that are well over 80 characters long and
silences the checkpatch warning.

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
index 372e22726cec..afb09572077e 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
@@ -490,7 +490,8 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 			if (encrypt)
 				skb_reserve(skb_frag, crypt->ops->extra_prefix_len);
 
-			frag_hdr = (struct ieee80211_hdr_3addrqos *)skb_put(skb_frag, hdr_len);
+			frag_hdr = (struct ieee80211_hdr_3addrqos *)skb_put(
+				skb_frag, hdr_len);
 			memcpy(frag_hdr, &header, hdr_len);
 
 			/*
@@ -511,9 +512,11 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 				 * add 1 only indicate to corresponding seq
 				 * number control 2006/7/12
 				 */
-				frag_hdr->seq_ctl = cpu_to_le16(ieee->seq_ctrl[UP2AC(skb->priority)+1]<<4 | i);
+				frag_hdr->seq_ctl = cpu_to_le16(
+					ieee->seq_ctrl[UP2AC(skb->priority)+1]<<4 | i);
 			} else {
-				frag_hdr->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0]<<4 | i);
+				frag_hdr->seq_ctl = cpu_to_le16(
+					ieee->seq_ctrl[0]<<4 | i);
 			}
 
 			/* Put a SNAP header on the first fragment */
-- 
cgit 


From 8cc91dd57ad4950bfd5020ba8e3deed680fcdbc8 Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Tue, 22 Oct 2013 02:37:22 +0300
Subject: staging: rtl8187se: prefer netdev_dbg to printk

This patch fixes the following checkpatch warning:

WARNING: Prefer netdev_dbg(netdev, ... then dev_dbg(dev, ... then
pr_debug(...  to printk(KERN_DEBUG ...

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
index afb09572077e..45e91032e49b 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
@@ -199,9 +199,8 @@ int ieee80211_encrypt_fragment(
 	    crypt && crypt->ops && strcmp(crypt->ops->name, "TKIP") == 0) {
 		header = (struct ieee80211_hdr_4addr *)frag->data;
 		if (net_ratelimit()) {
-			printk(KERN_DEBUG "%s: TKIP countermeasures: dropped "
-			       "TX packet to %pM\n",
-			       ieee->dev->name, header->addr1);
+			netdev_dbg(ieee->dev, "TKIP countermeasures: dropped "
+			       "TX packet to %pM\n", header->addr1);
 		}
 		return -1;
 	}
-- 
cgit 


From d837ba374e9fd2e9ec3db77dda7938211fa01c18 Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Tue, 22 Oct 2013 02:37:23 +0300
Subject: staging: rtl8187se: use netdev_info instead of printk

WARNING: Prefer netdev_info(netdev, ... then dev_info(dev, ... then
pr_info(...  to printk(KERN_INFO

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
index 45e91032e49b..ba32df92bedb 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
@@ -224,8 +224,7 @@ int ieee80211_encrypt_fragment(
 
 	atomic_dec(&crypt->refcnt);
 	if (res < 0) {
-		printk(KERN_INFO "%s: Encryption failed: len=%d.\n",
-		       ieee->dev->name, frag->len);
+		netdev_info(ieee->dev, "Encryption failed: len=%d.\n", frag->len);
 		ieee->ieee_stats.tx_discards++;
 		return -1;
 	}
-- 
cgit 


From 0fed188f7743ac63d496ba0c9025f6c35f540981 Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Tue, 22 Oct 2013 02:37:24 +0300
Subject: staging: rtl8187se: use netdev_warn instead of printk

This patch fixes this type of checkpatch warnings:

WARNING: Prefer netdev_warn(netdev, ... then dev_warn(dev, ... then
pr_warn(...  to printk(KERN_WARNING ...

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
index ba32df92bedb..f5a5219fe14d 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
@@ -341,8 +341,7 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 	     !(ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)) ||
 	    ((!ieee->softmac_data_hard_start_xmit &&
 	      (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)))) {
-		printk(KERN_WARNING "%s: No xmit handler.\n",
-		       ieee->dev->name);
+		netdev_warn(ieee->dev, "No xmit handler.\n");
 		goto success;
 	}
 
@@ -350,8 +349,7 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 	if (likely(ieee->raw_tx == 0)){
 
 		if (unlikely(skb->len < SNAP_SIZE + sizeof(u16))) {
-			printk(KERN_WARNING "%s: skb too small (%d).\n",
-			ieee->dev->name, skb->len);
+			netdev_warn(ieee->dev, "skb too small (%d).\n", skb->len);
 			goto success;
 		}
 
@@ -475,8 +473,7 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 		 */
 		txb = ieee80211_alloc_txb(nr_frags, frag_size, GFP_ATOMIC);
 		if (unlikely(!txb)) {
-			printk(KERN_WARNING "%s: Could not allocate TXB\n",
-			ieee->dev->name);
+			netdev_warn(ieee->dev, "Could not allocate TXB\n");
 			goto failed;
 		}
 		txb->encrypted = encrypt;
@@ -555,15 +552,13 @@ int ieee80211_rtl_xmit(struct sk_buff *skb,
 		}
 	} else {
 		if (unlikely(skb->len < sizeof(struct ieee80211_hdr_3addr))) {
-			printk(KERN_WARNING "%s: skb too small (%d).\n",
-			ieee->dev->name, skb->len);
+			netdev_warn(ieee->dev, "skb too small (%d).\n", skb->len);
 			goto success;
 		}
 
 		txb = ieee80211_alloc_txb(1, skb->len, GFP_ATOMIC);
 		if (!txb) {
-			printk(KERN_WARNING "%s: Could not allocate TXB\n",
-			ieee->dev->name);
+			netdev_warn(ieee->dev, "Could not allocate TXB\n");
 			goto failed;
 		}
 
-- 
cgit 


From 800df1a5b3cbb25615f37a2f80a38210a3e9db9b Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Thu, 24 Oct 2013 15:09:49 +0300
Subject: Staging: rtl8187se: fix line over 80 characters in r8185b_init.c

Fix checkpatch.pl issues with line over 80 characters
in r8185b_init.c, Italian to English translated added

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/r8185b_init.c | 401 +++++++++++++++++++++-----------
 1 file changed, 264 insertions(+), 137 deletions(-)

diff --git a/drivers/staging/rtl8187se/r8185b_init.c b/drivers/staging/rtl8187se/r8185b_init.c
index 43383cf8b161..3726172b6fea 100644
--- a/drivers/staging/rtl8187se/r8185b_init.c
+++ b/drivers/staging/rtl8187se/r8185b_init.c
@@ -30,10 +30,13 @@
 #define TC_3W_POLL_MAX_TRY_CNT 5
 
 static u8 MAC_REG_TABLE[][2] =	{
-	/*PAGA 0:	*/
-	/* 0x34(BRSR), 0xBE(RATE_FALLBACK_CTL), 0x1E0(ARFR) would set in HwConfigureRTL8185() */
-	/* 0x272(RFSW_CTRL), 0x1CE(AESMSK_QC) set in InitializeAdapter8185(). */
-	/* 0x1F0~0x1F8  set in MacConfig_85BASIC() */
+	/*
+	 * PAGE 0:
+	 * 0x34(BRSR), 0xBE(RATE_FALLBACK_CTL), 0x1E0(ARFR) would set in
+	 * HwConfigureRTL8185()
+	 * 0x272(RFSW_CTRL), 0x1CE(AESMSK_QC) set in InitializeAdapter8185().
+	 * 0x1F0~0x1F8  set in MacConfig_85BASIC()
+	 */
 	{0x08, 0xae}, {0x0a, 0x72}, {0x5b, 0x42},
 	{0x84, 0x88}, {0x85, 0x24}, {0x88, 0x54}, {0x8b, 0xb8}, {0x8c, 0x03},
 	{0x8d, 0x40}, {0x8e, 0x00}, {0x8f, 0x00}, {0x5b, 0x18}, {0x91, 0x03},
@@ -44,15 +47,20 @@ static u8 MAC_REG_TABLE[][2] =	{
 	{0xfa, 0x00}, {0xfb, 0x00}, {0xfc, 0x96}, {0xfd, 0xa4}, {0xfe, 0x00},
 	{0xff, 0x00},
 
-	/*PAGE 1: */
-	/* For Flextronics system Logo PCIHCT failure: */
-	/* 0x1C4~0x1CD set no-zero value to avoid PCI configuration space 0x45[7]=1 */
+	/*
+	 * PAGE 1:
+	 * For Flextronics system Logo PCIHCT failure:
+	 * 0x1C4~0x1CD set no-zero value to avoid PCI configuration
+	 * space 0x45[7]=1
+	 */
 	{0x5e, 0x01},
 	{0x58, 0x00}, {0x59, 0x00}, {0x5a, 0x04}, {0x5b, 0x00}, {0x60, 0x24},
 	{0x61, 0x97}, {0x62, 0xF0}, {0x63, 0x09}, {0x80, 0x0F}, {0x81, 0xFF},
 	{0x82, 0xFF}, {0x83, 0x03},
-	{0xC4, 0x22}, {0xC5, 0x22}, {0xC6, 0x22}, {0xC7, 0x22}, {0xC8, 0x22}, /* lzm add 080826 */
-	{0xC9, 0x22}, {0xCA, 0x22}, {0xCB, 0x22}, {0xCC, 0x22}, {0xCD, 0x22}, /* lzm add 080826 */
+	/* lzm add 080826 */
+	{0xC4, 0x22}, {0xC5, 0x22}, {0xC6, 0x22}, {0xC7, 0x22}, {0xC8, 0x22},
+	/* lzm add 080826 */
+	{0xC9, 0x22}, {0xCA, 0x22}, {0xCB, 0x22}, {0xCC, 0x22}, {0xCD, 0x22},
 	{0xe2, 0x00},
 
 
@@ -66,21 +74,24 @@ static u8 MAC_REG_TABLE[][2] =	{
 	{0x8f, 0x3f}, {0xc4, 0xff}, {0xc5, 0xff}, {0xc6, 0xff}, {0xc7, 0xff},
 	{0xc8, 0x00}, {0xc9, 0x00}, {0xca, 0x80}, {0xcb, 0x00},
 
-	/* PAGA 0: */
+	/* PAGE 0: */
 	{0x5e, 0x00}, {0x9f, 0x03}
 	};
 
 
 static u8  ZEBRA_AGC[] = {
 	0,
-	0x7E, 0x7E, 0x7E, 0x7E, 0x7D, 0x7C, 0x7B, 0x7A, 0x79, 0x78, 0x77, 0x76, 0x75, 0x74, 0x73, 0x72,
-	0x71, 0x70, 0x6F, 0x6E, 0x6D, 0x6C, 0x6B, 0x6A, 0x69, 0x68, 0x67, 0x66, 0x65, 0x64, 0x63, 0x62,
-	0x48, 0x47, 0x46, 0x45, 0x44, 0x29, 0x28, 0x27, 0x26, 0x25, 0x24, 0x23, 0x22, 0x21, 0x08, 0x07,
-	0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x15, 0x16,
-	0x17, 0x17, 0x18, 0x18, 0x19, 0x1a, 0x1a, 0x1b, 0x1b, 0x1c, 0x1c, 0x1d, 0x1d, 0x1d, 0x1e, 0x1e,
-	0x1f, 0x1f, 0x1f, 0x20, 0x20, 0x20, 0x20, 0x21, 0x21, 0x21, 0x22, 0x22, 0x22, 0x23, 0x23, 0x24,
-	0x24, 0x25, 0x25, 0x25, 0x26, 0x26, 0x27, 0x27, 0x2F, 0x2F, 0x2F, 0x2F, 0x2F, 0x2F, 0x2F, 0x2F
+	0x7E, 0x7E, 0x7E, 0x7E, 0x7D, 0x7C, 0x7B, 0x7A, 0x79, 0x78, 0x77, 0x76,
+	0x75, 0x74, 0x73, 0x72, 0x71, 0x70, 0x6F, 0x6E, 0x6D, 0x6C, 0x6B, 0x6A,
+	0x69, 0x68, 0x67, 0x66, 0x65, 0x64, 0x63, 0x62, 0x48, 0x47, 0x46, 0x45,
+	0x44, 0x29, 0x28, 0x27, 0x26, 0x25, 0x24, 0x23, 0x22, 0x21, 0x08, 0x07,
+	0x06, 0x05, 0x04, 0x03, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+	0x00, 0x00, 0x00, 0x00, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f, 0x0f,
+	0x0f, 0x0f, 0x10, 0x11, 0x12, 0x13, 0x15, 0x16, 0x17, 0x17, 0x18, 0x18,
+	0x19, 0x1a, 0x1a, 0x1b, 0x1b, 0x1c, 0x1c, 0x1d, 0x1d, 0x1d, 0x1e, 0x1e,
+	0x1f, 0x1f, 0x1f, 0x20, 0x20, 0x20, 0x20, 0x21, 0x21, 0x21, 0x22, 0x22,
+	0x22, 0x23, 0x23, 0x24, 0x24, 0x25, 0x25, 0x25, 0x26, 0x26, 0x27, 0x27,
+	0x2F, 0x2F, 0x2F, 0x2F, 0x2F, 0x2F, 0x2F, 0x2F
 	};
 
 static u32 ZEBRA_RF_RX_GAIN_TABLE[] = {
@@ -123,13 +134,21 @@ static u8 PlatformIORead1Byte(struct net_device *dev, u32 offset)
 static void PlatformIOWrite1Byte(struct net_device *dev, u32 offset, u8 data)
 {
 	write_nic_byte(dev, offset, data);
-	read_nic_byte(dev, offset); /* To make sure write operation is completed, 2005.11.09, by rcnjko. */
+	/*
+	 * To make sure write operation is completed,
+	 * 2005.11.09, by rcnjko.
+	 */
+	read_nic_byte(dev, offset);
 }
 
 static void PlatformIOWrite2Byte(struct net_device *dev, u32 offset, u16 data)
 {
 	write_nic_word(dev, offset, data);
-	read_nic_word(dev, offset); /* To make sure write operation is completed, 2005.11.09, by rcnjko. */
+	/*
+	 * To make sure write operation is completed,
+	 *  2005.11.09, by rcnjko.
+	 */
+	read_nic_word(dev, offset);
 }
 
 static void PlatformIOWrite4Byte(struct net_device *dev, u32 offset, u32 data)
@@ -146,9 +165,10 @@ static void PlatformIOWrite4Byte(struct net_device *dev, u32 offset, u32 data)
 
 		/*
 		 *	071010, rcnjko:
-		 *	The critical section is only BB read/write race condition.
-		 *	Assumption:
-		 *	1. We assume NO one will access BB at DIRQL, otherwise, system will crash for
+		 *	The critical section is only BB read/write race
+		 *	condition. Assumption:
+		 *	1. We assume NO one will access BB at DIRQL, otherwise,
+		 *	system will crash for
 		 *	acquiring the spinlock in such context.
 		 *	2. PlatformIOWrite4Byte() MUST NOT be recursive.
 		 */
@@ -164,14 +184,19 @@ static void PlatformIOWrite4Byte(struct net_device *dev, u32 offset, u32 data)
 		}
 
 		for (idx = 0; idx < 3; idx++)
-			PlatformIOWrite1Byte(dev, offset+1+idx, ((u8 *)&dataBytes)[idx]);
+			PlatformIOWrite1Byte(dev, offset+1+idx,
+					     ((u8 *)&dataBytes)[idx]);
 
 		write_nic_byte(dev, offset, cmdByte);
 
 		/* NdisReleaseSpinLock( &(pDevice->IoSpinLock) ); */
 	} else {
 		write_nic_dword(dev, offset, data);
-		read_nic_dword(dev, offset); /* To make sure write operation is completed, 2005.11.09, by rcnjko. */
+		/*
+		 * To make sure write operation is completed, 2005.11.09,
+		 *  by rcnjko.
+		 */
+		read_nic_dword(dev, offset);
 	}
 }
 
@@ -284,9 +309,13 @@ bool SetAntennaConfig87SE(struct net_device *dev,
 {
 	struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
 	bool   bAntennaSwitched = true;
-	u8	ant_diversity_offset = 0x00; /* 0x00 = disabled, 0x80 = enabled */
+	/* 0x00 = disabled, 0x80 = enabled */
+	u8	ant_diversity_offset = 0x00;
 
-	/* printk("SetAntennaConfig87SE(): DefaultAnt(%d), bAntDiversity(%d)\n", DefaultAnt, bAntDiversity); */
+	/*
+	 * printk("SetAntennaConfig87SE(): DefaultAnt(%d), bAntDiversity(%d)\n",
+	 * DefaultAnt, bAntDiversity);
+	 */
 
 	/* Threshold for antenna diversity. */
 	write_phy_cck(dev, 0x0c, 0x09); /* Reg0c : 09 */
@@ -300,22 +329,27 @@ bool SetAntennaConfig87SE(struct net_device *dev,
 
 		/* Config CCK RX antenna. */
 		write_phy_cck(dev, 0x11, 0xbb); /* Reg11 : bb */
-		write_phy_cck(dev, 0x01, 0x47|ant_diversity_offset); /* Reg01 : 47 | ant_diversity_offset */
+
+		/* Reg01 : 47 | ant_diversity_offset */
+		write_phy_cck(dev, 0x01, 0x47|ant_diversity_offset);
 
 		/* Config OFDM RX antenna. */
 		write_phy_ofdm(dev, 0x0D, 0x54);	/* Reg0d : 54 */
-		write_phy_ofdm(dev, 0x18, 0x32|ant_diversity_offset);	/* Reg18 : 32 */
+		/* Reg18 : 32 */
+		write_phy_ofdm(dev, 0x18, 0x32|ant_diversity_offset);
 	} else { /* main Antenna */
 		/* Mac register, main antenna */
 		write_nic_byte(dev, ANTSEL, 0x03);
 
 		/* Config CCK RX antenna.	*/
 		write_phy_cck(dev, 0x11, 0x9b); /* Reg11 : 9b */
-		write_phy_cck(dev, 0x01, 0x47|ant_diversity_offset); /* Reg01 : 47 */
+		/* Reg01 : 47 */
+		write_phy_cck(dev, 0x01, 0x47|ant_diversity_offset);
 
 		/* Config OFDM RX antenna. */
 		write_phy_ofdm(dev, 0x0D, 0x5c); /* Reg0d : 5c */
-		write_phy_ofdm(dev, 0x18, 0x32|ant_diversity_offset); /*Reg18 : 32 */
+		/*Reg18 : 32 */
+		write_phy_ofdm(dev, 0x18, 0x32|ant_diversity_offset);
 	}
 	priv->CurrAntennaIndex = DefaultAnt; /* Update default settings. */
 	return	bAntennaSwitched;
@@ -382,18 +416,23 @@ static void ZEBRA_Config_85BASIC_HardCode(struct net_device *dev)
 	RF_WriteReg(dev, 0x05, 0x059b);		mdelay(1);
 	RF_WriteReg(dev, 0x06, 0x0081);		mdelay(1);
 	RF_WriteReg(dev, 0x07, 0x01A0);		mdelay(1);
-/* Don't write RF23/RF24 to make a difference between 87S C cut and D cut. asked by SD3 stevenl. */
+/*
+ * Don't write RF23/RF24 to make a difference between 87S C cut and D cut.
+ * asked by SD3 stevenl.
+ */
 	RF_WriteReg(dev, 0x0a, 0x0001);		mdelay(1);
 	RF_WriteReg(dev, 0x0b, 0x0418);		mdelay(1);
 
 	if (d_cut) {
 		RF_WriteReg(dev, 0x0c, 0x0fbe);		mdelay(1);
 		RF_WriteReg(dev, 0x0d, 0x0008);		mdelay(1);
-		RF_WriteReg(dev, 0x0e, 0x0807);		mdelay(1); /* RX LO buffer */
+		/* RX LO buffer */
+		RF_WriteReg(dev, 0x0e, 0x0807);		mdelay(1);
 	} else {
 		RF_WriteReg(dev, 0x0c, 0x0fbe);		mdelay(1);
 		RF_WriteReg(dev, 0x0d, 0x0008);		mdelay(1);
-		RF_WriteReg(dev, 0x0e, 0x0806);		mdelay(1); /* RX LO buffer */
+		/* RX LO buffer */
+		RF_WriteReg(dev, 0x0e, 0x0806);		mdelay(1);
 	}
 
 	RF_WriteReg(dev, 0x0f, 0x0acc);		mdelay(1);
@@ -408,19 +447,24 @@ static void ZEBRA_Config_85BASIC_HardCode(struct net_device *dev)
 
 	RF_WriteReg(dev, 0x05, 0x0203);		mdelay(1); /* 203, 343 */
 	RF_WriteReg(dev, 0x06, 0x0200);		mdelay(1); /* 400 */
-	RF_WriteReg(dev, 0x00, 0x0137);		mdelay(1); /* switch to reg16-reg30, and HSSI disable 137 */
+	/* switch to reg16-reg30, and HSSI disable 137 */
+	RF_WriteReg(dev, 0x00, 0x0137);		mdelay(1);
 	mdelay(10); /* Deay 10 ms. */		/* 0xfd */
 
-	RF_WriteReg(dev, 0x0d, 0x0008);		mdelay(1); /* Z4 synthesizer loop filter setting, 392 */
+	/* Z4 synthesizer loop filter setting, 392 */
+	RF_WriteReg(dev, 0x0d, 0x0008);		mdelay(1);
 	mdelay(10); /* Deay 10 ms. */		/* 0xfd */
 
-	RF_WriteReg(dev, 0x00, 0x0037);		mdelay(1); /* switch to reg0-reg15, and HSSI disable */
+	/* switch to reg0-reg15, and HSSI disable */
+	RF_WriteReg(dev, 0x00, 0x0037);		mdelay(1);
 	mdelay(10); /* Deay 10 ms. */		/* 0xfd	*/
 
-	RF_WriteReg(dev, 0x04, 0x0160);		mdelay(1); /* CBC on, Tx Rx disable, High gain */
+	/* CBC on, Tx Rx disable, High gain */
+	RF_WriteReg(dev, 0x04, 0x0160);		mdelay(1);
 	mdelay(10); /* Deay 10 ms. */		/* 0xfd	*/
 
-	RF_WriteReg(dev, 0x07, 0x0080);		mdelay(1); /* Z4 setted channel 1 */
+	/* Z4 setted channel 1 */
+	RF_WriteReg(dev, 0x07, 0x0080);		mdelay(1);
 	mdelay(10); /* Deay 10 ms. */		/* 0xfd	*/
 
 	RF_WriteReg(dev, 0x02, 0x088D);		mdelay(1); /* LC calibration */
@@ -428,7 +472,8 @@ static void ZEBRA_Config_85BASIC_HardCode(struct net_device *dev)
 	mdelay(10);  /* Deay 10 ms. */		/* 0xfd	*/
 	mdelay(10);  /* Deay 10 ms. */		/* 0xfd	*/
 
-	RF_WriteReg(dev, 0x00, 0x0137);		mdelay(1); /* switch to reg16-reg30 137, and HSSI disable 137 */
+	/* switch to reg16-reg30 137, and HSSI disable 137 */
+	RF_WriteReg(dev, 0x00, 0x0137);		mdelay(1);
 	mdelay(10); /* Deay 10 ms. */		/* 0xfd	*/
 
 	RF_WriteReg(dev, 0x07, 0x0000);		mdelay(1);
@@ -444,44 +489,56 @@ static void ZEBRA_Config_85BASIC_HardCode(struct net_device *dev)
 	 /*
  	  *  enable crystal calibration.
 	  *		RF Reg[30], (1)Xin:[12:9], Xout:[8:5],  addr[4:0].
-	  *		(2)PA Pwr delay timer[15:14], default: 2.4us, set BIT15=0
-	  *		(3)RF signal on/off when calibration[13], default: on, set BIT13=0.
+	  *		(2)PA Pwr delay timer[15:14], default: 2.4us,
+	  *		set BIT15=0
+	  *		(3)RF signal on/off when calibration[13], default: on,
+	  *		set BIT13=0.
 	  *		So we should minus 4 BITs offset. 
 	  */
-		RF_WriteReg(dev, 0x0f, (priv->XtalCal_Xin<<5) | (priv->XtalCal_Xout<<1) | BIT11 | BIT9); mdelay(1);
+		RF_WriteReg(dev, 0x0f, (priv->XtalCal_Xin<<5) |
+			    (priv->XtalCal_Xout<<1) | BIT11 | BIT9); mdelay(1);
 		printk("ZEBRA_Config_85BASIC_HardCode(): (%02x)\n",
-		      (priv->XtalCal_Xin<<5) | (priv->XtalCal_Xout<<1) | BIT11 | BIT9);
+		      (priv->XtalCal_Xin<<5) | (priv->XtalCal_Xout<<1) |
+		       BIT11 | BIT9);
 	} else {
 		/* using default value. Xin=6, Xout=6.	*/
 		RF_WriteReg(dev, 0x0f, 0x0acc);		mdelay(1);
 	}
-
-	RF_WriteReg(dev, 0x00, 0x00bf);		mdelay(1); /* switch to reg0-reg15, and HSSI enable */
-	RF_WriteReg(dev, 0x0d, 0x08df);		mdelay(1); /* Rx BB start calibration, 00c//+edward */
-	RF_WriteReg(dev, 0x02, 0x004d);		mdelay(1); /* temperature meter off */
+	/* switch to reg0-reg15, and HSSI enable */
+	RF_WriteReg(dev, 0x00, 0x00bf);		mdelay(1);
+	/* Rx BB start calibration, 00c//+edward */
+	RF_WriteReg(dev, 0x0d, 0x08df);		mdelay(1);
+	/* temperature meter off */
+	RF_WriteReg(dev, 0x02, 0x004d);		mdelay(1);
 	RF_WriteReg(dev, 0x04, 0x0975);		mdelay(1); /* Rx mode */
 	mdelay(10);	/* Deay 10 ms.*/	/* 0xfe	*/
 	mdelay(10);	/* Deay 10 ms.*/	/* 0xfe	*/
 	mdelay(10);	/* Deay 10 ms.*/	/* 0xfe	*/
-	RF_WriteReg(dev, 0x00, 0x0197);		mdelay(1); /* Rx mode*/	/*+edward */
-	RF_WriteReg(dev, 0x05, 0x05ab);		mdelay(1); /* Rx mode*/	/*+edward */
-	RF_WriteReg(dev, 0x00, 0x009f);		mdelay(1); /* Rx mode*/	/*+edward */
-	RF_WriteReg(dev, 0x01, 0x0000);		mdelay(1); /* Rx mode*/	/*+edward */
-	RF_WriteReg(dev, 0x02, 0x0000);		mdelay(1); /* Rx mode*/	/*+edward */
+	/* Rx mode*/	/*+edward */
+	RF_WriteReg(dev, 0x00, 0x0197);		mdelay(1);
+	/* Rx mode*/	/*+edward */
+	RF_WriteReg(dev, 0x05, 0x05ab);		mdelay(1);
+	/* Rx mode*/	/*+edward */
+	RF_WriteReg(dev, 0x00, 0x009f);		mdelay(1);
+	/* Rx mode*/	/*+edward */
+	RF_WriteReg(dev, 0x01, 0x0000);		mdelay(1);
+	/* Rx mode*/	/*+edward */
+	RF_WriteReg(dev, 0x02, 0x0000);		mdelay(1);
 	/* power save parameters. */
 	u1b24E = read_nic_byte(dev, 0x24E);
 	write_nic_byte(dev, 0x24E, (u1b24E & (~(BIT5|BIT6))));
 
-	/*=============================================================================
+	/*======================================================================
 	 *
-	 *===========================================================================
+	 *======================================================================
 	 * CCKCONF.TXT
-	 *===========================================================================
+	 *======================================================================
 	 *
 	 *	[POWER SAVE] Power Saving Parameters by jong. 2007-11-27
 	 *	CCK reg0x00[7]=1'b1 :power saving for TX (default)
 	 *	CCK reg0x00[6]=1'b1: power saving for RX (default)
-	 *	CCK reg0x06[4]=1'b1: turn off channel estimation related circuits if not doing channel estimation.
+	 *	CCK reg0x06[4]=1'b1: turn off channel estimation related
+	 *	circuits if not doing channel estimation.
 	 *	CCK reg0x06[3]=1'b1: turn off unused circuits before cca = 1
 	 *	CCK reg0x06[2]=1'b1: turn off cck's circuit if macrst =0
 	 */
@@ -501,9 +558,9 @@ static void ZEBRA_Config_85BASIC_HardCode(struct net_device *dev)
 
 
 	/*
-	 *===========================================================================
+	 *======================================================================
 	 *	AGC.txt
-	 *===========================================================================
+	 *======================================================================
 	 */
 
 	write_phy_ofdm(dev, 0x00, 0x12);
@@ -526,11 +583,11 @@ static void ZEBRA_Config_85BASIC_HardCode(struct net_device *dev)
 	PlatformIOWrite4Byte(dev, PhyAddr, 0x00001080);	/* Annie, 2006-05-05 */
 
 	/*
-	 *===========================================================================
+	 *======================================================================
 	 *
-	 *===========================================================================
+	 *======================================================================
 	 * OFDMCONF.TXT
-	 *===========================================================================
+	 *======================================================================
 	 */
 
 	for (i = 0; i < 60; i++) {
@@ -544,12 +601,16 @@ static void ZEBRA_Config_85BASIC_HardCode(struct net_device *dev)
 	}
 
 	/*
-	 *===========================================================================
+	 *======================================================================
 	 * by amy for antenna
-	 *===========================================================================
+	 *======================================================================
+	 */
+	/*
+	 * Config Sw/Hw  Combinational Antenna Diversity. Added by Roger,
+	 * 2008.02.26.
 	 */
-	/* Config Sw/Hw  Combinational Antenna Diversity. Added by Roger, 2008.02.26.	*/
-	SetAntennaConfig87SE(dev, priv->bDefaultAntenna1, priv->bSwAntennaDiverity);
+	SetAntennaConfig87SE(dev, priv->bDefaultAntenna1,
+			     priv->bSwAntennaDiverity);
 }
 
 
@@ -560,7 +621,8 @@ void UpdateInitialGain(struct net_device *dev)
 	/* lzm add 080826 */
 	if (priv->eRFPowerState != eRfOn) {
 		/*	Don't access BB/RF under disable PLL situation.
-		 *	RT_TRACE(COMP_DIG, DBG_LOUD, ("UpdateInitialGain - pHalData->eRFPowerState!=eRfOn\n"));
+		 *	RT_TRACE(COMP_DIG, DBG_LOUD, ("UpdateInitialGain -
+		 *	pHalData->eRFPowerState!=eRfOn\n"));
 		 *	Back to the original state
 		 */
 		priv->InitialGain = priv->InitialGainBackUp;
@@ -635,7 +697,7 @@ static void InitTxPwrTracking87SE(struct net_device *dev)
 	u4bRfReg = RF_ReadReg(dev, 0x02);
 
 	/* Enable Thermal meter indication.	*/
-	RF_WriteReg(dev, 0x02, u4bRfReg|PWR_METER_EN);			mdelay(1);
+	RF_WriteReg(dev, 0x02, u4bRfReg|PWR_METER_EN);		mdelay(1);
 }
 
 static void PhyConfig8185(struct net_device *dev)
@@ -645,16 +707,18 @@ static void PhyConfig8185(struct net_device *dev)
 	   priv->RFProgType = read_nic_byte(dev, CONFIG4) & 0x03;
 	/*  RF config */
 	ZEBRA_Config_85BASIC_HardCode(dev);
-	/* Set default initial gain state to 4, approved by SD3 DZ, by Bruce, 2007-06-06. */
+	/* Set default initial gain state to 4, approved by SD3 DZ, by Bruce,
+	 * 2007-06-06.
+	 */
 	if (priv->bDigMechanism) {
 		if (priv->InitialGain == 0)
 			priv->InitialGain = 4;
 	}
 
 	/*
-	 *	Enable thermal meter indication to implement TxPower tracking on 87SE.
-	 *	We initialize thermal meter here to avoid unsuccessful configuration.
-	 *	Added by Roger, 2007.12.11.
+	 *	Enable thermal meter indication to implement TxPower tracking
+	 *	on 87SE. We initialize thermal meter here to avoid unsuccessful
+	 *	configuration. Added by Roger, 2007.12.11.
 	 */
 	if (priv->bTxPowerTrack)
 		InitTxPwrTracking87SE(dev);
@@ -667,7 +731,10 @@ static void PhyConfig8185(struct net_device *dev)
 
 static void HwConfigureRTL8185(struct net_device *dev)
 {
-	/* RTL8185_TODO: Determine Retrylimit, TxAGC, AutoRateFallback control. */
+	/*
+	 * RTL8185_TODO: Determine Retrylimit, TxAGC,
+	 * AutoRateFallback control.
+	 */
 	u8 bUNIVERSAL_CONTROL_RL = 0;
 	u8 bUNIVERSAL_CONTROL_AGC = 1;
 	u8 bUNIVERSAL_CONTROL_ANT = 1;
@@ -715,7 +782,9 @@ static void HwConfigureRTL8185(struct net_device *dev)
 	if (bAUTO_RATE_FALLBACK_CTL) {
 		val8 |= RATE_FALLBACK_CTL_ENABLE | RATE_FALLBACK_CTL_AUTO_STEP1;
 
-		/* <RJ_TODO_8185B> We shall set up the ARFR according to user's setting. */
+		/* <RJ_TODO_8185B> We shall set up the ARFR according
+		 * to user's setting.
+		 */
 		PlatformIOWrite2Byte(dev, ARFR, 0x0fff); /* set 1M ~ 54Mbps. */
 	}
 	write_nic_byte(dev, RATE_FALLBACK, val8);
@@ -724,9 +793,9 @@ static void HwConfigureRTL8185(struct net_device *dev)
 static void MacConfig_85BASIC_HardCode(struct net_device *dev)
 {
 	/*
-	 *==========================================================================
+	 *======================================================================
 	 * MACREG.TXT
-	 *==========================================================================
+	 *======================================================================
 	 */
 	int nLinesRead = 0;
 	u32 u4bRegOffset, u4bRegValue, u4bPageIndex = 0;
@@ -745,7 +814,7 @@ static void MacConfig_85BASIC_HardCode(struct net_device *dev)
 
 		write_nic_byte(dev, u4bRegOffset, (u8)u4bRegValue);
 	}
-	/* ============================================================================ */
+	/* ================================================================= */
 }
 
 static void MacConfig_85BASIC(struct net_device *dev)
@@ -754,12 +823,14 @@ static void MacConfig_85BASIC(struct net_device *dev)
 	u8			u1DA;
 	MacConfig_85BASIC_HardCode(dev);
 
-	/* ============================================================================ */
+	/* ================================================================= */
 
 	/* Follow TID_AC_MAP of WMac. */
 	write_nic_word(dev, TID_AC_MAP, 0xfa50);
 
-	/* Interrupt Migration, Jong suggested we use set 0x0000 first, 2005.12.14, by rcnjko. */
+	/* Interrupt Migration, Jong suggested we use set 0x0000 first,
+	 * 2005.12.14, by rcnjko.
+	 */
 	write_nic_word(dev, IntMig, 0x0000);
 
 	/* Prevent TPC to cause CRC error. Added by Annie, 2006-06-10. */
@@ -768,7 +839,11 @@ static void MacConfig_85BASIC(struct net_device *dev)
 	PlatformIOWrite1Byte(dev, 0x1F8, 0x00);
 
 	/* Asked for by SD3 CM Lin, 2006.06.27, by rcnjko. */
-	/* power save parameter based on "87SE power save parameters 20071127.doc", as follow. */
+
+	/*
+	 *  power save parameter based on
+	 * "87SE power save parameters 20071127.doc", as follow.
+	 */
 
 	/* Enable DA10 TX power saving */
 	u1DA = read_nic_byte(dev, PHYPR);
@@ -803,27 +878,42 @@ static void ActUpdateChannelAccessSetting(struct net_device *dev,
 
 	/*
 	 *	<RJ_TODO_8185B>
-	 *	TODO: We still don't know how to set up these registers, just follow WMAC to
-	 *	verify 8185B FPAG.
+	 *	TODO: We still don't know how to set up these registers,
+	 *	just follow WMAC to verify 8185B FPAG.
 	 *
 	 *	<RJ_TODO_8185B>
 	 *	Jong said CWmin/CWmax register are not functional in 8185B,
-	 *	so we shall fill channel access realted register into AC parameter registers,
+	 *	so we shall fill channel access realted register into AC
+	 *	parameter registers,
 	 *	even in nQBss.
 	 */
-	ChnlAccessSetting->SIFS_Timer = 0x22; /* Suggested by Jong, 2005.12.08. */
+
+	/* Suggested by Jong, 2005.12.08. */
+	ChnlAccessSetting->SIFS_Timer = 0x22;
 	ChnlAccessSetting->DIFS_Timer = 0x1C; /* 2006.06.02, by rcnjko. */
 	ChnlAccessSetting->SlotTimeTimer = 9; /* 2006.06.02, by rcnjko. */
-	ChnlAccessSetting->EIFS_Timer = 0x5B; /* Suggested by wcchu, it is the default value of EIFS register, 2005.12.08. */
+	/*
+	 * Suggested by wcchu, it is the default value of EIFS register,
+	 * 2005.12.08.
+	 */
+	ChnlAccessSetting->EIFS_Timer = 0x5B;
 	ChnlAccessSetting->CWminIndex = 3; /* 2006.06.02, by rcnjko. */
 	ChnlAccessSetting->CWmaxIndex = 7; /* 2006.06.02, by rcnjko. */
 
 	write_nic_byte(dev, SIFS, ChnlAccessSetting->SIFS_Timer);
-	write_nic_byte(dev, SLOT, ChnlAccessSetting->SlotTimeTimer); /* Rewrited from directly use PlatformEFIOWrite1Byte(), by Annie, 2006-03-29. */
+	/*
+	 * Rewrited from directly use PlatformEFIOWrite1Byte(),
+	 * by Annie, 2006-03-29.
+	 */
+	write_nic_byte(dev, SLOT, ChnlAccessSetting->SlotTimeTimer);
 
 	write_nic_byte(dev, EIFS, ChnlAccessSetting->EIFS_Timer);
 
-	write_nic_byte(dev, AckTimeOutReg, 0x5B); /* <RJ_EXPR_QOS> Suggested by wcchu, it is the default value of EIFS register, 2005.12.08. */
+	/*
+	 * <RJ_EXPR_QOS> Suggested by wcchu, it is the default value of EIFS
+	 * register, 2005.12.08.
+	 */
+	write_nic_byte(dev, AckTimeOutReg, 0x5B);
 
 	for (eACI = 0; eACI < AC_MAX; eACI++) {
 		write_nic_byte(dev, ACM_CONTROL, 0);
@@ -837,7 +927,10 @@ static void ActSetWirelessMode8185(struct net_device *dev, u8 btWirelessMode)
 	u8	btSupportedWirelessMode = GetSupportedWirelessMode8185(dev);
 
 	if ((btWirelessMode & btSupportedWirelessMode) == 0)	{
-		/* Don't switch to unsupported wireless mode, 2006.02.15, by rcnjko. */
+		/*
+		 * Don't switch to unsupported wireless mode, 2006.02.15,
+		 * by rcnjko.
+		 */
 		DMESGW("ActSetWirelessMode8185(): WirelessMode(%d) is not supported (%d)!\n",
 			btWirelessMode, btSupportedWirelessMode);
 		return;
@@ -861,9 +954,9 @@ static void ActSetWirelessMode8185(struct net_device *dev, u8 btWirelessMode)
 
 	/* 
  	 * 2. Swtich band: RF or BB specific actions,
-	 * for example, refresh tables in omc8255, or change initial gain if necessary.
-	 * Nothing to do for Zebra to switch band.
-	 * Update current wireless mode if we switch to specified band successfully. 
+	 * for example, refresh tables in omc8255, or change initial gain if
+	 *  necessary. Nothing to do for Zebra to switch band. Update current
+	 *  wireless mode if we switch to specified band successfully.
 	 */
 
 	ieee->mode = (WIRELESS_MODE)btWirelessMode;
@@ -876,7 +969,8 @@ static void ActSetWirelessMode8185(struct net_device *dev, u8 btWirelessMode)
 	else if (ieee->mode == WIRELESS_MODE_G)
 		DMESG("WIRELESS_MODE_G\n");
 
-	ActUpdateChannelAccessSetting( dev, ieee->mode, &priv->ChannelAccessSetting);
+	ActUpdateChannelAccessSetting( dev, ieee->mode,
+				      &priv->ChannelAccessSetting);
 }
 
 void rtl8185b_irq_enable(struct net_device *dev)
@@ -901,9 +995,10 @@ static void MgntDisconnectIBSS(struct net_device *dev)
 	/*
 	 *	Stop Beacon.
 	 *
-	 *	Vista add a Adhoc profile, HW radio off until OID_DOT11_RESET_REQUEST
-	 *	Driver would set MSR=NO_LINK, then HW Radio ON, MgntQueue Stuck.
-	 *	Because Bcn DMA isn't complete, mgnt queue would stuck until Bcn packet send.
+	 *	Vista add a Adhoc profile, HW radio off until
+	 *	OID_DOT11_RESET_REQUEST Driver would set MSR=NO_LINK,
+	 *	then HW Radio ON, MgntQueue Stuck. Because Bcn DMA isn't
+	 *	complete, mgnt queue would stuck until Bcn packet send.
 	 *
 	 *	Disable Beacon Queue Own bit, suggested by jong	
 	 */
@@ -938,12 +1033,14 @@ static void MgntDisconnectAP(struct net_device *dev, u8 asRsn)
 	 * Commented out by rcnjko, 2005.01.27:
 	 * I move SecClearAllKeys() to MgntActSet_802_11_DISASSOCIATE().
 	 *
-	 *	2004/09/15, kcwu, the key should be cleared, or the new handshaking will not success
+	 *	2004/09/15, kcwu, the key should be cleared, or the new
+	 *	handshaking will not success
 	 *
-	 *	In WPA WPA2 need to Clear all key ... because new key will set after new handshaking.
-	 *	2004.10.11, by rcnjko. 
+	 *	In WPA WPA2 need to Clear all key ... because new key will set
+	 *	after new handshaking. 2004.10.11, by rcnjko.
 	 */
-	MlmeDisassociateRequest(dev, priv->ieee80211->current_network.bssid, asRsn);
+	MlmeDisassociateRequest(dev, priv->ieee80211->current_network.bssid,
+				asRsn);
 
 	priv->ieee80211->state = IEEE80211_NOLINK;
 }
@@ -964,11 +1061,13 @@ static bool MgntDisconnect(struct net_device *dev, u8 asRsn)
 
 		if (priv->ieee80211->iw_mode == IW_MODE_INFRA) {
 			/*
- 			 * 	We clear key here instead of MgntDisconnectAP() because that
-			 *	MgntActSet_802_11_DISASSOCIATE() is an interface called by OS,
-			 *	e.g. OID_802_11_DISASSOCIATE in Windows while as MgntDisconnectAP() is
-			 *	used to handle disassociation related things to AP, e.g. send Disassoc
-			 *	frame to AP.  2005.01.27, by rcnjko. 
+			 *	We clear key here instead of MgntDisconnectAP()
+			 *	because that MgntActSet_802_11_DISASSOCIATE()
+			 *	is an interface called by OS, e.g.
+			 *	OID_802_11_DISASSOCIATE in Windows while as
+			 *	MgntDisconnectAP() is used to handle
+			 *	disassociation related things to AP, e.g. send
+			 *	Disassoc frame to AP.  2005.01.27, by rcnjko.
 			 */
 			MgntDisconnectAP(dev, asRsn);
 		}
@@ -979,12 +1078,14 @@ static bool MgntDisconnect(struct net_device *dev, u8 asRsn)
 /*
  *	Description:
  *		Chang RF Power State.
- *		Note that, only MgntActSet_RF_State() is allowed to set HW_VAR_RF_STATE.
+ *		Note that, only MgntActSet_RF_State() is allowed to set
+ *		HW_VAR_RF_STATE.
  *
  *	Assumption:
  *		PASSIVE LEVEL.
  */
-static bool SetRFPowerState(struct net_device *dev, RT_RF_POWER_STATE eRFPowerState)
+static bool SetRFPowerState(struct net_device *dev,
+		RT_RF_POWER_STATE eRFPowerState)
 {
 	struct	r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
 	bool	bResult = false;
@@ -997,7 +1098,8 @@ static bool SetRFPowerState(struct net_device *dev, RT_RF_POWER_STATE eRFPowerSt
 	return bResult;
 }
 
-bool MgntActSet_RF_State(struct net_device *dev, RT_RF_POWER_STATE StateToSet, u32 ChangeSource)
+bool MgntActSet_RF_State(struct net_device *dev,
+		RT_RF_POWER_STATE StateToSet, u32 ChangeSource)
 {
 	struct	r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
 	bool	bActionAllowed = false;
@@ -1006,8 +1108,9 @@ bool MgntActSet_RF_State(struct net_device *dev, RT_RF_POWER_STATE StateToSet, u
 	u16	RFWaitCounter = 0;
 	unsigned long flag;
 	/*
-	 *	Prevent the race condition of RF state change. By Bruce, 2007-11-28.
-	 *	Only one thread can change the RF state at one time, and others should wait to be executed.
+	 *	Prevent the race condition of RF state change. By Bruce,
+	 *	2007-11-28. Only one thread can change the RF state at one time,
+	 *	and others should wait to be executed.
 	 */
 	while (true) {
 		spin_lock_irqsave(&priv->rf_ps_lock, flag);
@@ -1018,7 +1121,10 @@ bool MgntActSet_RF_State(struct net_device *dev, RT_RF_POWER_STATE StateToSet, u
 				RFWaitCounter++;
 				udelay(1000); /* 1 ms	*/
 
-				/* Wait too long, return FALSE to avoid to be stuck here. */
+				/*
+				 *	Wait too long, return FALSE to avoid
+				 *	to be stuck here.
+				 */
 				if (RFWaitCounter > 1000) { /* 1sec */
 					printk("MgntActSet_RF_State(): Wait too long to set RF\n");
 					/* TODO: Reset RF state? */
@@ -1036,8 +1142,10 @@ bool MgntActSet_RF_State(struct net_device *dev, RT_RF_POWER_STATE StateToSet, u
 	switch (StateToSet) {
 	case eRfOn:
 		/*
-		 *	Turn On RF no matter the IPS setting because we need to update the RF state to Ndis under Vista, or
-		 *	the Windows does not allow the driver to perform site survey any more. By Bruce, 2007-10-02.
+		 *	Turn On RF no matter the IPS setting because we need to
+		 *	update the RF state to Ndis under Vista, or the Windows
+		 *	does not allow the driver to perform site survey any
+		 *	more. By Bruce, 2007-10-02.
 		 */
 		priv->RfOffReason &= (~ChangeSource);
 
@@ -1045,7 +1153,8 @@ bool MgntActSet_RF_State(struct net_device *dev, RT_RF_POWER_STATE StateToSet, u
 			priv->RfOffReason = 0;
 			bActionAllowed = true;
 
-			if (rtState == eRfOff && ChangeSource >= RF_CHANGE_BY_HW)
+			if (rtState == eRfOff &&
+			    ChangeSource >= RF_CHANGE_BY_HW)
 				bConnectBySSID = true;
 		}
 		break;
@@ -1056,13 +1165,18 @@ bool MgntActSet_RF_State(struct net_device *dev, RT_RF_POWER_STATE StateToSet, u
 		if (priv->RfOffReason > RF_CHANGE_BY_IPS) {
 			/*
 			 *	060808, Annie:
-			 *	Disconnect to current BSS when radio off. Asked by QuanTa.
+			 *	Disconnect to current BSS when radio off.
+			 *	Asked by QuanTa.
 			 *
-			 *	Calling MgntDisconnect() instead of MgntActSet_802_11_DISASSOCIATE(),
-			 *	because we do NOT need to set ssid to dummy ones.
+			 *	Calling MgntDisconnect() instead of
+			 *	MgntActSet_802_11_DISASSOCIATE(), because
+			 *	we do NOT need to set ssid to dummy ones.
 			 */
 			MgntDisconnect(dev, disas_lv_ss);
-			/* Clear content of bssDesc[] and bssDesc4Query[] to avoid reporting old bss to UI. */
+			/*
+			 *	Clear content of bssDesc[] and bssDesc4Query[]
+			 *	to avoid reporting old bss to UI.
+			 */
 		}
 
 		priv->RfOffReason |= ChangeSource;
@@ -1092,18 +1206,21 @@ static void InactivePowerSave(struct net_device *dev)
 {
 	struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
 	/*
-	 *	This flag "bSwRfProcessing", indicates the status of IPS procedure, should be set if the IPS workitem
-	 *	is really scheduled.
-	 *	The old code, sets this flag before scheduling the IPS workitem and however, at the same time the
-	 *	previous IPS workitem did not end yet, fails to schedule the current workitem. Thus, bSwRfProcessing
-	 *	blocks the IPS procedure of switching RF.
+	 *	This flag "bSwRfProcessing", indicates the status of IPS
+	 *	procedure, should be set if the IPS workitem is really
+	 *	scheduled. The old code, sets this flag before scheduling the
+	 *	IPS workitem and however, at the same time the previous IPS
+	 *	workitem did not end yet, fails to schedule the current
+	 *	workitem. Thus, bSwRfProcessing blocks the IPS procedure of
+	 *	switching RF.
 	 */
 	priv->bSwRfProcessing = true;
 
 	MgntActSet_RF_State(dev, priv->eInactivePowerState, RF_CHANGE_BY_IPS);
 
 	/*
-	 *	To solve CAM values miss in RF OFF, rewrite CAM values after RF ON. By Bruce, 2007-09-20.
+	 *	To solve CAM values miss in RF OFF, rewrite CAM values after
+	 *	RF ON. By Bruce, 2007-09-20.
 	 */
 
 	priv->bSwRfProcessing = false;
@@ -1122,10 +1239,10 @@ void IPSEnter(struct net_device *dev)
 
 		/*
 		 *	Do not enter IPS in the following conditions:
-		 *	(1) RF is already OFF or Sleep
-		 *	(2) bSwRfProcessing (indicates the IPS is still under going)
-		 *	(3) Connected (only disconnected can trigger IPS)
-		 *	(4) IBSS (send Beacon)
+		 *	(1) RF is already OFF or
+		 *	Sleep (2) bSwRfProcessing (indicates the IPS is still
+		 *	under going) (3) Connected (only disconnected can
+		 *	trigger IPS)(4) IBSS (send Beacon)
 		 *	(5) AP mode (send Beacon)
 		 */
 		if (rtState == eRfOn && !priv->bSwRfProcessing
@@ -1141,7 +1258,9 @@ void IPSLeave(struct net_device *dev)
 	RT_RF_POWER_STATE rtState;
 	if (priv->bInactivePs) {
 		rtState = priv->eRFPowerState;
-		if ((rtState == eRfOff || rtState == eRfSleep) && (!priv->bSwRfProcessing) && priv->RfOffReason <= RF_CHANGE_BY_IPS) {
+		if ((rtState == eRfOff || rtState == eRfSleep) &&
+		    !priv->bSwRfProcessing
+		    && priv->RfOffReason <= RF_CHANGE_BY_IPS) {
 			priv->eInactivePowerState = eRfOn;
 			InactivePowerSave(dev);
 		}
@@ -1170,27 +1289,32 @@ void rtl8185b_adapter_start(struct net_device *dev)
 	HwConfigureRTL8185(dev);
 	write_nic_dword(dev, MAC0, ((u32 *)dev->dev_addr)[0]);
 	write_nic_word(dev, MAC4, ((u32 *)dev->dev_addr)[1] & 0xffff);
-	write_nic_byte(dev, MSR, read_nic_byte(dev, MSR) & 0xf3); /* default network type to 'No Link' */
+	/* default network type to 'No Link' */
+	write_nic_byte(dev, MSR, read_nic_byte(dev, MSR) & 0xf3);
 	write_nic_word(dev, BcnItv, 100);
 	write_nic_word(dev, AtimWnd, 2);
 	PlatformIOWrite2Byte(dev, FEMR, 0xFFFF);
 	write_nic_byte(dev, WPA_CONFIG, 0);
 	MacConfig_85BASIC(dev);
-	/* Override the RFSW_CTRL (MAC offset 0x272-0x273), 2006.06.07, by rcnjko. */
+	/* Override the RFSW_CTRL (MAC offset 0x272-0x273), 2006.06.07,
+	 * by rcnjko.
+	 */
 	/* BT_DEMO_BOARD type */
 	PlatformIOWrite2Byte(dev, RFSW_CTRL, 0x569a);
 
 	/*
-	 *---------------------------------------------------------------------------
+	 *---------------------------------------------------------------------
 	 *	Set up PHY related.
-	 *---------------------------------------------------------------------------
+	 *---------------------------------------------------------------------
 	 */
 	/* Enable Config3.PARAM_En to revise AnaaParm. */
 	write_nic_byte(dev, CR9346, 0xc0); /* enable config register write */
 	tmpu8 = read_nic_byte(dev, CONFIG3);
 	write_nic_byte(dev, CONFIG3, (tmpu8 | CONFIG3_PARM_En));
 	/* Turn on Analog power. */
-	/* Asked for by William, otherwise, MAC 3-wire can't work, 2006.06.27, by rcnjko. */
+	/* Asked for by William, otherwise, MAC 3-wire can't work,
+	 * 2006.06.27, by rcnjko.
+	 */
 	write_nic_dword(dev, ANAPARAM2, ANAPARM2_ASIC_ON);
 	write_nic_dword(dev, ANAPARAM, ANAPARM_ASIC_ON);
 	write_nic_word(dev, ANAPARAM3, 0x0010);
@@ -1225,7 +1349,8 @@ void rtl8185b_adapter_start(struct net_device *dev)
 	/*
 	 *	We assume RegWirelessMode has already been initialized before,
 	 *	however, we has to validate the wireless mode here and provide a
-	 *	reasonable initialized value if necessary. 2005.01.13, by rcnjko.
+	 *	reasonable initialized value if necessary. 2005.01.13,
+	 *	by rcnjko.
 	 */
 	SupportedWirelessMode = GetSupportedWirelessMode8185(dev);
 	if ((ieee->mode != WIRELESS_MODE_B) &&
@@ -1272,14 +1397,15 @@ void rtl8185b_adapter_start(struct net_device *dev)
 		MgntActSet_RF_State(dev, eRfOn, 0);
 	}
 		/*
-		 *	If inactive power mode is enabled, disable rf while in disconnected state.
+		 * If inactive power mode is enabled, disable rf while in
+		 * disconnected state.
 		 */
 	if (priv->bInactivePs)
 		MgntActSet_RF_State(dev , eRfOff, RF_CHANGE_BY_IPS);
 
 	ActSetWirelessMode8185(dev, (u8)(InitWirelessMode));
 
-	/* ----------------------------------------------------------------------------- */
+	/* ----------------------------------------------------------------- */
 
 	rtl8185b_irq_enable(dev);
 
@@ -1303,7 +1429,8 @@ void rtl8185b_rx_enable(struct net_device *dev)
 	}
 
 	if (priv->ieee80211->iw_mode == IW_MODE_MONITOR)
-		priv->ReceiveConfig = priv->ReceiveConfig | RCR_ACF | RCR_APWRMGT | RCR_AICV;
+		priv->ReceiveConfig = priv->ReceiveConfig | RCR_ACF |
+				      RCR_APWRMGT | RCR_AICV;
 
 
 	if (priv->crcmon == 1 && priv->ieee80211->iw_mode == IW_MODE_MONITOR)
-- 
cgit 


From 9c7bc37628d8edef821176fcd7872efd54358f50 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Thu, 24 Oct 2013 16:24:51 +0530
Subject: Staging: et131x: Fix Smatch Warning of Buffer Overflow

This patch fixes the following Sparse Warning in et131x.c-

drivers/staging/et131x/et131x.c:2957 nic_send_packet() error: buffer overflow 'frags' 17 <= 21
drivers/staging/et131x/et131x.c:2959 nic_send_packet() warn: buffer overflow 'frags' 17 <= 21
drivers/staging/et131x/et131x.c:2961 nic_send_packet() error: buffer overflow 'frags' 17 <= 21

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/et131x/et131x.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/et131x/et131x.c b/drivers/staging/et131x/et131x.c
index 7cd3d3470758..d9446c47bf2e 100644
--- a/drivers/staging/et131x/et131x.c
+++ b/drivers/staging/et131x/et131x.c
@@ -2902,8 +2902,9 @@ static int nic_send_packet(struct et131x_adapter *adapter, struct tcb *tcb)
 	 * number of fragments. If needed, we can call this function,
 	 * although it is less efficient.
 	 */
-	if (nr_frags > 23)
-		return -EIO;
+
+	/* nr_frags should be no more than 18. */
+	BUILD_BUG_ON(MAX_SKB_FRAGS + 1 > 23);
 
 	memset(desc, 0, sizeof(struct tx_desc) * (nr_frags + 1));
 
-- 
cgit 


From 89bc5be7c0d62aff91b4b0241318cfedc7311c7e Mon Sep 17 00:00:00 2001
From: Valentina Manea <valentina.manea.m@gmail.com>
Date: Fri, 25 Oct 2013 11:52:20 +0300
Subject: staging: imx-drm: use true and false for bool variables

This patch fixes coccinelle errors for bool variables
initialized with 1 or 0 instead of true and false.

Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/imx-drm/imx-tve.c           | 4 ++--
 drivers/staging/imx-drm/ipu-v3/ipu-common.c | 4 ++--
 drivers/staging/imx-drm/ipu-v3/ipu-dc.c     | 4 ++--
 drivers/staging/imx-drm/ipu-v3/ipu-dp.c     | 2 +-
 4 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/imx-drm/imx-tve.c b/drivers/staging/imx-drm/imx-tve.c
index 59dd4d560ce0..680f4c8fa081 100644
--- a/drivers/staging/imx-drm/imx-tve.c
+++ b/drivers/staging/imx-drm/imx-tve.c
@@ -151,7 +151,7 @@ static void tve_enable(struct imx_tve *tve)
 
 	spin_lock_irqsave(&tve->enable_lock, flags);
 	if (!tve->enabled) {
-		tve->enabled = 1;
+		tve->enabled = true;
 		clk_prepare_enable(tve->clk);
 		ret = regmap_update_bits(tve->regmap, TVE_COM_CONF_REG,
 					 TVE_IPU_CLK_EN | TVE_EN,
@@ -180,7 +180,7 @@ static void tve_disable(struct imx_tve *tve)
 
 	spin_lock_irqsave(&tve->enable_lock, flags);
 	if (tve->enabled) {
-		tve->enabled = 0;
+		tve->enabled = false;
 		ret = regmap_update_bits(tve->regmap, TVE_COM_CONF_REG,
 					 TVE_IPU_CLK_EN | TVE_EN, 0);
 		clk_disable_unprepare(tve->clk);
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-common.c b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
index a0e7fc2f4031..77a0c65a3dbe 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-common.c
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
@@ -564,7 +564,7 @@ struct ipuv3_channel *ipu_idmac_get(struct ipu_soc *ipu, unsigned num)
 		goto out;
 	}
 
-	channel->busy = 1;
+	channel->busy = true;
 	channel->num = num;
 
 out:
@@ -582,7 +582,7 @@ void ipu_idmac_put(struct ipuv3_channel *channel)
 
 	mutex_lock(&ipu->channel_lock);
 
-	channel->busy = 0;
+	channel->busy = false;
 
 	mutex_unlock(&ipu->channel_lock);
 }
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-dc.c b/drivers/staging/imx-drm/ipu-v3/ipu-dc.c
index 1a6e06d1ebaf..d0e3bc3c53e7 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-dc.c
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-dc.c
@@ -316,7 +316,7 @@ struct ipu_dc *ipu_dc_get(struct ipu_soc *ipu, int channel)
 		return ERR_PTR(-EBUSY);
 	}
 
-	dc->in_use = 1;
+	dc->in_use = true;
 
 	mutex_unlock(&priv->mutex);
 
@@ -329,7 +329,7 @@ void ipu_dc_put(struct ipu_dc *dc)
 	struct ipu_dc_priv *priv = dc->priv;
 
 	mutex_lock(&priv->mutex);
-	dc->in_use = 0;
+	dc->in_use = false;
 	mutex_unlock(&priv->mutex);
 }
 EXPORT_SYMBOL_GPL(ipu_dc_put);
diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-dp.c b/drivers/staging/imx-drm/ipu-v3/ipu-dp.c
index 231afd6c60f8..58f87c8d7c07 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-dp.c
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-dp.c
@@ -325,7 +325,7 @@ int ipu_dp_init(struct ipu_soc *ipu, struct device *dev, unsigned long base)
 	mutex_init(&priv->mutex);
 
 	for (i = 0; i < IPUV3_NUM_FLOWS; i++) {
-		priv->flow[i].foreground.foreground = 1;
+		priv->flow[i].foreground.foreground = true;
 		priv->flow[i].base = priv->base + ipu_dp_flow_base[i];
 		priv->flow[i].priv = priv;
 	}
-- 
cgit 


From 5b66fb7d57462f5c0683f7d64625652ffb9f5f87 Mon Sep 17 00:00:00 2001
From: Valentina Manea <valentina.manea.m@gmail.com>
Date: Fri, 25 Oct 2013 11:39:56 +0300
Subject: staging: rtl8188eu: do not use comparisons on bool tests

This patch fixes coccinelle errors regarding comparisons
used in bool tests.

Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/core/rtw_pwrctrl.c   | 2 +-
 drivers/staging/rtl8188eu/hal/HalPhyRf_8188e.c | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c b/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c
index 58a1661f5a84..b45461fe20fe 100644
--- a/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c
+++ b/drivers/staging/rtl8188eu/core/rtw_pwrctrl.c
@@ -193,7 +193,7 @@ void rtw_ps_processor(struct adapter *padapter)
 	if (pwrpriv->ips_mode_req == IPS_NONE)
 		goto exit;
 
-	if (rtw_pwr_unassociated_idle(padapter) == false)
+	if (!rtw_pwr_unassociated_idle(padapter))
 		goto exit;
 
 	if ((pwrpriv->rf_pwrstate == rf_on) && ((pwrpriv->pwr_state_check_cnts%4) == 0)) {
diff --git a/drivers/staging/rtl8188eu/hal/HalPhyRf_8188e.c b/drivers/staging/rtl8188eu/hal/HalPhyRf_8188e.c
index bb43793fd1ec..8a7947d8de7f 100644
--- a/drivers/staging/rtl8188eu/hal/HalPhyRf_8188e.c
+++ b/drivers/staging/rtl8188eu/hal/HalPhyRf_8188e.c
@@ -819,7 +819,7 @@ void _PHY_SaveADDARegisters(struct adapter *adapt, u32 *ADDAReg, u32 *ADDABackup
 	struct hal_data_8188e	*pHalData = GET_HAL_DATA(adapt);
 	struct odm_dm_struct *dm_odm = &pHalData->odmpriv;
 
-	if (ODM_CheckPowerStatus(adapt) == false)
+	if (!ODM_CheckPowerStatus(adapt))
 		return;
 
 	ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD, ("Save ADDA parameters.\n"));
@@ -888,7 +888,7 @@ _PHY_PathADDAOn(
 	ODM_RT_TRACE(dm_odm, ODM_COMP_CALIBRATION, ODM_DBG_LOUD, ("ADDA ON.\n"));
 
 	pathOn = isPathAOn ? 0x04db25a4 : 0x0b1b25a4;
-	if (false == is2t) {
+	if (!is2t) {
 		pathOn = 0x0bdb25a0;
 		ODM_SetBBReg(dm_odm, ADDAReg[0], bMaskDWord, 0x0b1b25a0);
 	} else {
@@ -1296,7 +1296,7 @@ void PHY_IQCalibrate_8188E(struct adapter *adapt, bool recovery)
 	bool is2t;
 
 	is2t = (dm_odm->RFType == ODM_2T2R) ? true : false;
-	if (ODM_CheckPowerStatus(adapt) == false)
+	if (!ODM_CheckPowerStatus(adapt))
 		return;
 
 	if (!(dm_odm->SupportAbility & ODM_RF_CALIBRATION))
-- 
cgit 


From 38272d20b9e20f6c0e9a5f138dd1cb8ecdf45962 Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Fri, 25 Oct 2013 11:27:09 +0300
Subject: staging: rtl8192u: use memdup_user to simplify code

Use memdup_user rather than duplicating its implementation. Fix the
following coccinelle warnings:

drivers/staging/rtl8192u/r8192U_core.c:3792:7-14: WARNING opportunity for memdup_user
drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c:3153:9-16: WARNING opportunity for memdup_user

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c | 11 +++--------
 drivers/staging/rtl8192u/r8192U_core.c                 | 11 +++--------
 2 files changed, 6 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
index 5fd696926ee3..662c7e41cd5c 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_softmac.c
@@ -3150,14 +3150,9 @@ int ieee80211_wpa_supplicant_ioctl(struct ieee80211_device *ieee, struct iw_poin
 		goto out;
 	}
 
-	param = kmalloc(p->length, GFP_KERNEL);
-	if (param == NULL){
-		ret = -ENOMEM;
-		goto out;
-	}
-	if (copy_from_user(param, p->pointer, p->length)) {
-		kfree(param);
-		ret = -EFAULT;
+	param = memdup_user(p->pointer, p->length);
+	if (IS_ERR(param)) {
+		ret = PTR_ERR(param);
 		goto out;
 	}
 
diff --git a/drivers/staging/rtl8192u/r8192U_core.c b/drivers/staging/rtl8192u/r8192U_core.c
index 63a4cdf1dc04..c2bcbe230ed3 100644
--- a/drivers/staging/rtl8192u/r8192U_core.c
+++ b/drivers/staging/rtl8192u/r8192U_core.c
@@ -3789,14 +3789,9 @@ int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 		goto out;
 	}
 
-	ipw = kmalloc(p->length, GFP_KERNEL);
-	if (ipw == NULL) {
-		ret = -ENOMEM;
-		goto out;
-	}
-	if (copy_from_user(ipw, p->pointer, p->length)) {
-		kfree(ipw);
-		ret = -EFAULT;
+	ipw = memdup_user(p->pointer, p->length);
+	if (IS_ERR(ipw)) {
+		ret = PTR_ERR(ipw);
 		goto out;
 	}
 
-- 
cgit 


From 4bb01423ab05af02feaba04823ba6b852dbe5aa6 Mon Sep 17 00:00:00 2001
From: Valentina Manea <valentina.manea.m@gmail.com>
Date: Fri, 25 Oct 2013 11:28:10 +0300
Subject: staging: rtl8192e: do not use comparisons on bool tests

This patch fixes coccinelle errors regarding comparisons
used in bool tests.

Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192e/rtl8192e/r8190P_rtl8256.c  |  6 +++---
 drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c      |  8 ++++----
 drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c |  2 +-
 drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c      |  9 ++++-----
 drivers/staging/rtl8192e/rtl8192e/rtl_core.c        | 14 ++++++--------
 drivers/staging/rtl8192e/rtl8192e/rtl_dm.c          | 11 +++++------
 drivers/staging/rtl8192e/rtl819x_TSProc.c           |  4 ++--
 drivers/staging/rtl8192e/rtllib_rx.c                |  2 +-
 drivers/staging/rtl8192e/rtllib_softmac.c           | 13 ++++++-------
 drivers/staging/rtl8192e/rtllib_tx.c                |  2 +-
 drivers/staging/rtl8192e/rtllib_wx.c                |  2 +-
 11 files changed, 34 insertions(+), 39 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtl8192e/r8190P_rtl8256.c b/drivers/staging/rtl8192e/rtl8192e/r8190P_rtl8256.c
index 0da56c80f088..5af1c19142de 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8190P_rtl8256.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8190P_rtl8256.c
@@ -140,7 +140,7 @@ bool phy_RF8256_Config_ParaFile(struct net_device *dev)
 
 		rtStatus = rtl8192_phy_checkBBAndRF(dev, HW90_BLOCK_RF,
 						(enum rf90_radio_path)eRFPath);
-		if (rtStatus != true) {
+		if (!rtStatus) {
 			RT_TRACE(COMP_ERR, "PHY_RF8256_Config():Check "
 				 "Radio[%d] Fail!!\n", eRFPath);
 			goto phy_RF8256_Config_ParaFile_Fail;
@@ -245,7 +245,7 @@ void PHY_SetRF8256CCKTxPower(struct net_device *dev, u8	powerlevel)
 	struct r8192_priv *priv = rtllib_priv(dev);
 
 	TxAGC = powerlevel;
-	if (priv->bDynamicTxLowPower == true) {
+	if (priv->bDynamicTxLowPower) {
 		if (priv->CustomerID == RT_CID_819x_Netcore)
 			TxAGC = 0x22;
 		else
@@ -294,7 +294,7 @@ void PHY_SetRF8256OFDMTxPower(struct net_device *dev, u8 powerlevel)
 			priv->Pwr_Track = writeVal_tmp;
 		}
 
-		if (priv->bDynamicTxHighPower == true)
+		if (priv->bDynamicTxHighPower)
 			writeVal = 0x03030303;
 		else
 			writeVal = (byte3 << 24) | (byte2 << 16) |
diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
index 6616b3a20bc9..a816a57030fe 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
@@ -720,7 +720,7 @@ start:
 	}
 	priv->pFirmware->firmware_status = FW_STATUS_0_INIT;
 
-	if (priv->RegRfOff == true)
+	if (priv->RegRfOff)
 		priv->rtllib->eRFPowerState = eRfOff;
 
 	ulRegRead = read_nic_dword(dev, CPU_GEN);
@@ -745,7 +745,7 @@ start:
 	}
 	RT_TRACE(COMP_INIT, "BB Config Start!\n");
 	rtStatus = rtl8192_BBConfig(dev);
-	if (rtStatus != true) {
+	if (!rtStatus) {
 		RT_TRACE(COMP_ERR, "BB Config failed\n");
 		return rtStatus;
 	}
@@ -856,7 +856,7 @@ start:
 	if (priv->ResetProgress == RESET_TYPE_NORESET) {
 		RT_TRACE(COMP_INIT, "RF Config Started!\n");
 		rtStatus = rtl8192_phy_RFConfig(dev);
-		if (rtStatus != true) {
+		if (!rtStatus) {
 			RT_TRACE(COMP_ERR, "RF Config failed\n");
 			return rtStatus;
 		}
@@ -869,7 +869,7 @@ start:
 
 	write_nic_byte(dev, 0x87, 0x0);
 
-	if (priv->RegRfOff == true) {
+	if (priv->RegRfOff) {
 		RT_TRACE((COMP_INIT | COMP_RF | COMP_POWER),
 			  "%s(): Turn off RF for RegRfOff ----------\n",
 			  __func__);
diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
index dd2a96bfcc0c..abcd22f8fdda 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
@@ -329,7 +329,7 @@ bool init_firmware(struct net_device *dev)
 		}
 
 		rt_status = fw_download_code(dev, mapped_file, file_length);
-		if (rt_status != true) {
+		if (!rt_status) {
 			goto download_firmware_fail;
 		}
 
diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c
index 9676c591c859..21e6ddde68a2 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c
@@ -567,7 +567,7 @@ static bool rtl8192_BB_Config_ParaFile(struct net_device *dev)
 		rtStatus  = rtl8192_phy_checkBBAndRF(dev,
 					 (enum hw90_block)eCheckItem,
 					 (enum rf90_radio_path)0);
-		if (rtStatus != true) {
+		if (!rtStatus) {
 			RT_TRACE((COMP_ERR | COMP_PHY), "PHY_RF8256_Config():"
 				 "Check PHY%d Fail!!\n", eCheckItem-1);
 			return rtStatus;
@@ -1425,7 +1425,7 @@ static bool SetRFPowerState8190(struct net_device *dev,
 	u8	i = 0, QueueID = 0;
 	struct rtl8192_tx_ring  *ring = NULL;
 
-	if (priv->SetRFPowerStateInProgress == true)
+	if (priv->SetRFPowerStateInProgress)
 		return false;
 	RT_TRACE(COMP_PS, "===========> SetRFPowerState8190()!\n");
 	priv->SetRFPowerStateInProgress = true;
@@ -1443,10 +1443,9 @@ static bool SetRFPowerState8190(struct net_device *dev,
 					InitilizeCount--;
 					priv->RegRfOff = false;
 					rtstatus = NicIFEnableNIC(dev);
-				} while ((rtstatus != true) &&
-					 (InitilizeCount > 0));
+				} while (!rtstatus && (InitilizeCount > 0));
 
-				if (rtstatus != true) {
+				if (!rtstatus) {
 					RT_TRACE(COMP_ERR, "%s():Initialize Ada"
 						 "pter fail,return\n",
 						 __func__);
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
index b01f6f5c2c44..6ba02fcd57da 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
@@ -370,8 +370,7 @@ bool MgntActSet_RF_State(struct net_device *dev,
 	case eRfOn:
 		priv->rtllib->RfOffReason &= (~ChangeSource);
 
-		if ((ChangeSource == RF_CHANGE_BY_HW) &&
-		    (priv->bHwRadioOff == true))
+		if ((ChangeSource == RF_CHANGE_BY_HW) && priv->bHwRadioOff)
 			priv->bHwRadioOff = false;
 
 		if (!priv->rtllib->RfOffReason) {
@@ -405,8 +404,7 @@ bool MgntActSet_RF_State(struct net_device *dev,
 						      disas_lv_ss);
 			}
 		}
-		if ((ChangeSource == RF_CHANGE_BY_HW) &&
-		     (priv->bHwRadioOff == false))
+		if ((ChangeSource == RF_CHANGE_BY_HW) && !priv->bHwRadioOff)
 			priv->bHwRadioOff = true;
 		priv->rtllib->RfOffReason |= ChangeSource;
 		bActionAllowed = true;
@@ -428,7 +426,7 @@ bool MgntActSet_RF_State(struct net_device *dev,
 		PHY_SetRFPowerState(dev, StateToSet);
 		if (StateToSet == eRfOn) {
 
-			if (bConnectBySSID && (priv->blinked_ingpio == true)) {
+			if (bConnectBySSID && priv->blinked_ingpio) {
 				queue_delayed_work_rsl(ieee->wq,
 					 &ieee->associate_procedure_wq, 0);
 				priv->blinked_ingpio = false;
@@ -955,7 +953,7 @@ static int _rtl8192_sta_up(struct net_device *dev, bool is_silent_reset)
 	RT_TRACE(COMP_INIT, "Bringing up iface");
 	priv->bfirst_init = true;
 	init_status = priv->ops->initialize_adapter(dev);
-	if (init_status != true) {
+	if (!init_status) {
 		RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization is failed!\n",
 			 __func__);
 		priv->bfirst_init = false;
@@ -1647,7 +1645,7 @@ void	rtl819x_watchdog_wqcallback(void *data)
 	bool	bHigherBusyRxTraffic = false;
 	bool bEnterPS = false;
 
-	if (IS_NIC_DOWN(priv) || (priv->bHwRadioOff == true))
+	if (IS_NIC_DOWN(priv) || priv->bHwRadioOff)
 		return;
 
 	if (priv->rtllib->state >= RTLLIB_LINKED) {
@@ -3045,7 +3043,7 @@ bool NicIFEnableNIC(struct net_device *dev)
 	RT_TRACE(COMP_PS, "===========>%s()\n", __func__);
 	priv->bfirst_init = true;
 	init_status = priv->ops->initialize_adapter(dev);
-	if (init_status != true) {
+	if (!init_status) {
 		RT_TRACE(COMP_ERR, "ERR!!! %s(): initialization is failed!\n",
 			 __func__);
 		priv->bdisable_nic = false;
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
index 1853665764a0..bdab150d927e 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
@@ -535,7 +535,7 @@ static void dm_TXPowerTrackingCallback_TSSI(struct net_device *dev)
 				}
 			}
 
-			if (viviflag == true) {
+			if (viviflag) {
 				write_nic_byte(dev, Pw_Track_Flag, 0);
 				viviflag = false;
 				RT_TRACE(COMP_POWER_TRACKING, "we filted this data\n");
@@ -2273,12 +2273,12 @@ void dm_CheckRfCtrlGPIO(void *data)
 
 	eRfPowerStateToSet = (tmp1byte&BIT1) ?  eRfOn : eRfOff;
 
-	if ((priv->bHwRadioOff == true) && (eRfPowerStateToSet == eRfOn)) {
+	if (priv->bHwRadioOff && (eRfPowerStateToSet == eRfOn)) {
 		RT_TRACE(COMP_RF, "gpiochangeRF  - HW Radio ON\n");
 		printk(KERN_INFO "gpiochangeRF  - HW Radio ON\n");
 		priv->bHwRadioOff = false;
 		bActuallySet = true;
-	} else if ((priv->bHwRadioOff == false) && (eRfPowerStateToSet == eRfOff)) {
+	} else if (!priv->bHwRadioOff && (eRfPowerStateToSet == eRfOff)) {
 		RT_TRACE(COMP_RF, "gpiochangeRF  - HW Radio OFF\n");
 		printk(KERN_INFO "gpiochangeRF  - HW Radio OFF\n");
 		priv->bHwRadioOff = true;
@@ -2289,7 +2289,7 @@ void dm_CheckRfCtrlGPIO(void *data)
 		mdelay(1000);
 		priv->bHwRfOffAction = 1;
 		MgntActSet_RF_State(dev, eRfPowerStateToSet, RF_CHANGE_BY_HW, true);
-		if (priv->bHwRadioOff == true)
+		if (priv->bHwRadioOff)
 			argv[1] = "RFOFF";
 		else
 			argv[1] = "RFON";
@@ -2946,8 +2946,7 @@ static void dm_dynamic_txpower(struct net_device *dev)
 			priv->bDynamicTxLowPower = false;
 		} else {
 			if (priv->undecorated_smoothed_pwdb <
-			    txlowpower_threshold &&
-			    priv->bDynamicTxHighPower == true)
+			    txlowpower_threshold && priv->bDynamicTxHighPower)
 				priv->bDynamicTxHighPower = false;
 			if (priv->undecorated_smoothed_pwdb < 35)
 				priv->bDynamicTxLowPower = true;
diff --git a/drivers/staging/rtl8192e/rtl819x_TSProc.c b/drivers/staging/rtl8192e/rtl819x_TSProc.c
index 658e875232aa..29608e5488a4 100644
--- a/drivers/staging/rtl8192e/rtl819x_TSProc.c
+++ b/drivers/staging/rtl8192e/rtl819x_TSProc.c
@@ -264,7 +264,7 @@ static struct ts_common_info *SearchAdmitTRStream(struct rtllib_device *ieee,
 		psearch_list = &ieee->Rx_TS_Admit_List;
 
 	for (dir = 0; dir <= DIR_BI_DIR; dir++) {
-		if (search_dir[dir] == false)
+		if (!search_dir[dir])
 			continue;
 		list_for_each_entry(pRet, psearch_list, List) {
 			if (memcmp(pRet->Addr, Addr, 6) == 0)
@@ -348,7 +348,7 @@ bool GetTs(struct rtllib_device *ieee, struct ts_common_info **ppTS,
 	if (*ppTS != NULL) {
 		return true;
 	} else {
-		if (bAddNewTs == false) {
+		if (!bAddNewTs) {
 			RTLLIB_DEBUG(RTLLIB_DL_TS, "add new TS failed"
 				     "(tid:%d)\n", UP);
 			return false;
diff --git a/drivers/staging/rtl8192e/rtllib_rx.c b/drivers/staging/rtl8192e/rtllib_rx.c
index 8ee80c50303a..6862172af172 100644
--- a/drivers/staging/rtl8192e/rtllib_rx.c
+++ b/drivers/staging/rtl8192e/rtllib_rx.c
@@ -1729,7 +1729,7 @@ static inline void rtllib_extract_country_ie(
 			network->CountryIeLen = info_element->len;
 
 			if (!IS_COUNTRY_IE_VALID(ieee)) {
-				if ((rtllib_act_scanning(ieee, false) == true) && (ieee->FirstIe_InScan == 1))
+				if (rtllib_act_scanning(ieee, false) && ieee->FirstIe_InScan)
 					printk(KERN_INFO "Received beacon ContryIE, SSID: <%s>\n", network->ssid);
 				Dot11d_UpdateCountryIe(ieee, addr2, info_element->len, info_element->data);
 			}
diff --git a/drivers/staging/rtl8192e/rtllib_softmac.c b/drivers/staging/rtl8192e/rtllib_softmac.c
index 0cbf6f5593a3..e74d24212a39 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac.c
@@ -604,7 +604,7 @@ static void rtllib_softmac_scan_wq(void *data)
 
 	if (!ieee->ieee_up)
 		return;
-	if (rtllib_act_scanning(ieee, true) == true)
+	if (rtllib_act_scanning(ieee, true))
 		return;
 
 	down(&ieee->scan_sem);
@@ -1202,7 +1202,7 @@ inline struct sk_buff *rtllib_association_req(struct rtllib_network *beacon,
 
 	if ((ieee->rtllib_ap_sec_type &&
 	    (ieee->rtllib_ap_sec_type(ieee) & SEC_ALG_TKIP)) ||
-	    (ieee->bForcedBgMode == true)) {
+	    ieee->bForcedBgMode) {
 		ieee->pHTInfo->bEnableHT = 0;
 		ieee->mode = WIRELESS_MODE_G;
 	}
@@ -1535,7 +1535,7 @@ static void rtllib_associate_complete_wq(void *data)
 	struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
 					(&(ieee->PowerSaveControl));
 	printk(KERN_INFO "Associated successfully\n");
-	if (ieee->is_silent_reset == 0) {
+	if (!ieee->is_silent_reset) {
 		printk(KERN_INFO "normal associate\n");
 		notify_wx_assoc_event(ieee);
 	}
@@ -1572,7 +1572,7 @@ static void rtllib_associate_complete_wq(void *data)
 	pPSC->LpsIdleCount = 0;
 	ieee->link_change(ieee->dev);
 
-	if (ieee->is_silent_reset == 1) {
+	if (ieee->is_silent_reset) {
 		printk(KERN_INFO "silent reset associate\n");
 		ieee->is_silent_reset = 0;
 	}
@@ -2005,7 +2005,7 @@ static short rtllib_sta_ps_sleep(struct rtllib_device *ieee, u64 *time)
 		return 0;
 
 	if (time) {
-		if (ieee->bAwakePktSent == true) {
+		if (ieee->bAwakePktSent) {
 			pPSC->LPSAwakeIntvl = 1;
 		} else {
 			u8		MaxPeriod = 1;
@@ -2338,8 +2338,7 @@ inline int rtllib_rx_auth(struct rtllib_device *ieee, struct sk_buff *skb,
 					}
 
 					if (ieee->current_network.mode ==
-					    IEEE_N_24G &&
-					    bHalfSupportNmode == true) {
+					    IEEE_N_24G && bHalfSupportNmode) {
 						printk(KERN_INFO "======>enter "
 						       "half N mode\n");
 						ieee->bHalfWirelessN24GMode =
diff --git a/drivers/staging/rtl8192e/rtllib_tx.c b/drivers/staging/rtl8192e/rtllib_tx.c
index 1cc6a9d5e8a3..3183627823fb 100644
--- a/drivers/staging/rtl8192e/rtllib_tx.c
+++ b/drivers/staging/rtl8192e/rtllib_tx.c
@@ -908,7 +908,7 @@ int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 				tcb_desc->data_rate = CURRENT_RATE(ieee->mode,
 					ieee->rate, ieee->HTCurrentOperaRate);
 
-			if (bdhcp == true) {
+			if (bdhcp) {
 				if (ieee->pHTInfo->IOTAction &
 				    HT_IOT_ACT_WA_IOT_Broadcom) {
 					tcb_desc->data_rate =
diff --git a/drivers/staging/rtl8192e/rtllib_wx.c b/drivers/staging/rtl8192e/rtllib_wx.c
index c7e8d4d8ec2b..13af43b90fc0 100644
--- a/drivers/staging/rtl8192e/rtllib_wx.c
+++ b/drivers/staging/rtl8192e/rtllib_wx.c
@@ -753,7 +753,7 @@ int rtllib_wx_set_mlme(struct rtllib_device *ieee,
 		/* leave break out intentionly */
 
 	case IW_MLME_DISASSOC:
-		if (deauth == true)
+		if (deauth)
 			printk(KERN_INFO "disauth packet !\n");
 		else
 			printk(KERN_INFO "dis associate packet!\n");
-- 
cgit 


From d5f9f1e3a9945198be1bf20f0e110af9e29f9970 Mon Sep 17 00:00:00 2001
From: Valentina Manea <valentina.manea.m@gmail.com>
Date: Fri, 25 Oct 2013 11:48:29 +0300
Subject: staging: sep: do not use comparisons on bool tests

This patch fixes coccinelle errors regarding comparisons
used in bool tests.

Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/sep/sep_main.c | 22 ++++++++++------------
 1 file changed, 10 insertions(+), 12 deletions(-)

diff --git a/drivers/staging/sep/sep_main.c b/drivers/staging/sep/sep_main.c
index 5f8c0a8ecb9d..1e80a4013b8c 100644
--- a/drivers/staging/sep/sep_main.c
+++ b/drivers/staging/sep/sep_main.c
@@ -493,8 +493,7 @@ int sep_free_dma_table_data_handler(struct sep_device *sep,
 		 * then we skip this step altogether as restricted
 		 * memory is not available to the o/s at all.
 		 */
-		if (((*dma_ctx)->secure_dma == false) &&
-			(dma->out_map_array)) {
+		if (!(*dma_ctx)->secure_dma && dma->out_map_array) {
 
 			for (count = 0; count < dma->out_num_pages; count++) {
 				dma_unmap_page(&sep->pdev->dev,
@@ -515,8 +514,7 @@ int sep_free_dma_table_data_handler(struct sep_device *sep,
 		}
 
 		/* Again, we do this only for non secure dma */
-		if (((*dma_ctx)->secure_dma == false) &&
-			(dma->out_page_array)) {
+		if (!(*dma_ctx)->secure_dma && dma->out_page_array) {
 
 			for (count = 0; count < dma->out_num_pages; count++) {
 				if (!PageReserved(dma->out_page_array[count]))
@@ -1947,7 +1945,7 @@ static int sep_prepare_input_dma_table(struct sep_device *sep,
 	}
 
 	/* Check if the pages are in Kernel Virtual Address layout */
-	if (is_kva == true)
+	if (is_kva)
 		error = sep_lock_kernel_pages(sep, app_virt_addr,
 			data_size, &lli_array_ptr, SEP_DRIVER_IN_FLAG,
 			dma_ctx);
@@ -2441,7 +2439,7 @@ static int sep_prepare_input_output_dma_table(struct sep_device *sep,
 	dma_ctx->dma_res_arr[dma_ctx->nr_dcb_creat].out_page_array = NULL;
 
 	/* Lock the pages of the buffer and translate them to pages */
-	if (is_kva == true) {
+	if (is_kva) {
 		dev_dbg(&sep->pdev->dev, "[PID%d] Locking kernel input pages\n",
 						current->pid);
 		error = sep_lock_kernel_pages(sep, app_virt_in_addr,
@@ -2485,7 +2483,7 @@ static int sep_prepare_input_output_dma_table(struct sep_device *sep,
 			goto end_function;
 		}
 
-		if (dma_ctx->secure_dma == true) {
+		if (dma_ctx->secure_dma) {
 			/* secure_dma requires use of non accessible memory */
 			dev_dbg(&sep->pdev->dev, "[PID%d] in secure_dma\n",
 				current->pid);
@@ -2722,11 +2720,11 @@ int sep_prepare_input_output_dma_table_in_dcb(struct sep_device *sep,
 	dcb_table_ptr->tail_data_size = 0;
 	dcb_table_ptr->out_vr_tail_pt = 0;
 
-	if (isapplet == true) {
+	if (isapplet) {
 
 		/* Check if there is enough data for DMA operation */
 		if (data_in_size < SEP_DRIVER_MIN_DATA_SIZE_PER_TABLE) {
-			if (is_kva == true) {
+			if (is_kva) {
 				error = -ENODEV;
 				goto end_function_error;
 			} else {
@@ -2767,7 +2765,7 @@ int sep_prepare_input_output_dma_table_in_dcb(struct sep_device *sep,
 		if (tail_size) {
 			if (tail_size > sizeof(dcb_table_ptr->tail_data))
 				return -EINVAL;
-			if (is_kva == true) {
+			if (is_kva) {
 				error = -ENODEV;
 				goto end_function_error;
 			} else {
@@ -2878,7 +2876,7 @@ static int sep_free_dma_tables_and_dcb(struct sep_device *sep, bool isapplet,
 	if (!dma_ctx || !*dma_ctx) /* nothing to be done here*/
 		return 0;
 
-	if (((*dma_ctx)->secure_dma == false) && (isapplet == true)) {
+	if (!(*dma_ctx)->secure_dma && isapplet) {
 		dev_dbg(&sep->pdev->dev, "[PID%d] handling applet\n",
 			current->pid);
 
@@ -2897,7 +2895,7 @@ static int sep_free_dma_tables_and_dcb(struct sep_device *sep, bool isapplet,
 				pt_hold = (unsigned long)dcb_table_ptr->
 					out_vr_tail_pt;
 				tail_pt = (void *)pt_hold;
-				if (is_kva == true) {
+				if (is_kva) {
 					error = -ENODEV;
 					break;
 				} else {
-- 
cgit 


From c9a6ffa6c09c744a5f2521aa96eebf0557365893 Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Fri, 25 Oct 2013 12:00:14 +0300
Subject: staging: rtl8187se: use memdup_user to simplify code

This patch fixes the following coccinelle warning to use memdup_user
rather than duplicating its implementation:

drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c:2947:9-16: WARNING opportunity for memdup_user

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
index 04058263398e..029070603f66 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
@@ -2944,14 +2944,9 @@ int ieee80211_wpa_supplicant_ioctl(struct ieee80211_device *ieee, struct iw_poin
 		goto out;
 	}
 
-	param = kmalloc(p->length, GFP_KERNEL);
-	if (param == NULL){
-		ret = -ENOMEM;
-		goto out;
-	}
-	if (copy_from_user(param, p->pointer, p->length)) {
-		kfree(param);
-		ret = -EFAULT;
+	param = memdup_user(p->pointer, p->length);
+	if (IS_ERR(param)) {
+		ret = PTR_ERR(param);
 		goto out;
 	}
 
-- 
cgit 


From f26842926d203285517069acff3d2d5eedb39556 Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Fri, 25 Oct 2013 12:00:15 +0300
Subject: staging: rtl8187se: fix assignment of bool to 0/1

This patch fixes the following coccinelle warnings:

drivers/staging/rtl8187se/r8180_core.c:2433:1-20: WARNING: Assignment of bool to 0/1
drivers/staging/rtl8187se/r8180_core.c:2275:3-34: WARNING: Assignment  of bool to 0/1

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/r8180_core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8187se/r8180_core.c b/drivers/staging/rtl8187se/r8180_core.c
index 55dfd5e450cd..eb9822215c15 100644
--- a/drivers/staging/rtl8187se/r8180_core.c
+++ b/drivers/staging/rtl8187se/r8180_core.c
@@ -2272,7 +2272,7 @@ static void rtl8180_set_channel_map(u8 channel_plan, struct ieee80211_device *ie
 		}
 	case COUNTRY_CODE_GLOBAL_DOMAIN:
 		{
-			GET_DOT11D_INFO(ieee)->bEnabled = 0;
+			GET_DOT11D_INFO(ieee)->bEnabled = false;
 			Dot11d_Reset(ieee);
 			ieee->bGlobalDomain = true;
 			break;
@@ -2430,7 +2430,7 @@ short rtl8180_init(struct net_device *dev)
 	init_timer(&priv->SwAntennaDiversityTimer);
 	priv->SwAntennaDiversityTimer.data = (unsigned long)dev;
 	priv->SwAntennaDiversityTimer.function = (void *)SwAntennaDiversityTimerCallback;
-	priv->bDigMechanism = 1;
+	priv->bDigMechanism = true;
 	priv->InitialGain = 6;
 	priv->bXtalCalibration = false;
 	priv->XtalCal_Xin = 0;
-- 
cgit 


From 0fe249a5c80e473d6a0a1ba39457af1a6cb30448 Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Fri, 25 Oct 2013 12:00:16 +0300
Subject: staging: rtl8187se: bool tests don't need comparisons

This patch fixes the following coccinelle warning:

drivers/staging/rtl8187se/r8180_core.c:2217:5-40: WARNING: Comparison to bool

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/r8180_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8187se/r8180_core.c b/drivers/staging/rtl8187se/r8180_core.c
index eb9822215c15..8d767f35ce89 100644
--- a/drivers/staging/rtl8187se/r8180_core.c
+++ b/drivers/staging/rtl8187se/r8180_core.c
@@ -2214,7 +2214,7 @@ static void watch_dog_adaptive(unsigned long data)
 		TxPwrTracking87SE((struct net_device *)data);
 
 	/* Perform DIG immediately. */
-	if (CheckDig((struct net_device *)data) == true)
+	if (CheckDig((struct net_device *)data))
 		queue_work(priv->ieee80211->wq, (void *)&priv->ieee80211->hw_dig_wq);
 	rtl8180_watch_dog((struct net_device *)data);
 
-- 
cgit 


From 3717013a64ebbea30d2c1c3e74d211d4660fa01a Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Fri, 25 Oct 2013 12:00:17 +0300
Subject: staging: rtl8187se: fix code allignment

Fix confusingly indented code after if. This patch fixes the following
coccinelle issues:

drivers/staging/rtl8187se/r8180_wx.c:1148:2-11: code aligned with following code on line 1150
drivers/staging/rtl8187se/r8180_dm.c:668:1-84: code aligned with following code on line 674
drivers/staging/rtl8187se/ieee80211/ieee80211_wx.c:623:2-38: code aligned with following code on line 625
drivers/staging/rtl8187se/ieee80211/ieee80211_wx.c:148:1-85: code aligned with following code on line 149

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/ieee80211/ieee80211_wx.c | 5 +++--
 drivers/staging/rtl8187se/r8180_dm.c               | 2 +-
 drivers/staging/rtl8187se/r8180_wx.c               | 8 ++++----
 3 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_wx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_wx.c
index e014f7e74397..24d39ccc1337 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_wx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_wx.c
@@ -145,7 +145,8 @@ static inline char *rtl818x_translate_scan(struct ieee80211_device *ieee,
 	/* Add quality statistics */
 	/* TODO: Fix these values... */
 	if (network->stats.signal == 0 || network->stats.rssi == 0)
-	printk("========>signal:%d, rssi:%d\n", network->stats.signal, network->stats.rssi);
+		printk("========>signal:%d, rssi:%d\n", network->stats.signal,
+		       network->stats.rssi);
 	iwe.cmd = IWEVQUAL;
 //	printk("SIGNAL: %d,RSSI: %d,NOISE: %d\n",network->stats.signal,network->stats.rssi,network->stats.noise);
 	iwe.u.qual.qual = network->stats.signalstrength;
@@ -622,7 +623,7 @@ done:
 	if (ieee->set_security)
 		ieee->set_security(ieee->dev, &sec);
 
-	 if (ieee->reset_on_keychange &&
+	if (ieee->reset_on_keychange &&
 	    ieee->iw_mode != IW_MODE_INFRA &&
 	    ieee->reset_port && ieee->reset_port(dev)) {
 		IEEE80211_DEBUG_WX("%s: reset_port failed\n", dev->name);
diff --git a/drivers/staging/rtl8187se/r8180_dm.c b/drivers/staging/rtl8187se/r8180_dm.c
index 980bafd12277..2ccd2cb70fac 100644
--- a/drivers/staging/rtl8187se/r8180_dm.c
+++ b/drivers/staging/rtl8187se/r8180_dm.c
@@ -665,7 +665,7 @@ static void StaRateAdaptive87SE(struct net_device *dev)
 	}
 
 	if (bTryUp && bTryDown)
-	printk("StaRateAdaptive87B(): Tx Rate tried upping and downing simultaneously!\n");
+		printk("StaRateAdaptive87B(): Tx Rate tried upping and downing simultaneously!\n");
 
 	/* 1 Test Upgrading Tx Rate
 	 * Sometimes the cause of the low throughput (high retry rate) is the compatibility between the AP and NIC.
diff --git a/drivers/staging/rtl8187se/r8180_wx.c b/drivers/staging/rtl8187se/r8180_wx.c
index 098e368835e2..4e01653e098a 100644
--- a/drivers/staging/rtl8187se/r8180_wx.c
+++ b/drivers/staging/rtl8187se/r8180_wx.c
@@ -1147,12 +1147,12 @@ static int r8180_wx_set_gen_ie(struct net_device *dev,
 	if (priv->ieee80211->bHwRadioOff)
 		return 0;
 
-		down(&priv->wx_sem);
+	down(&priv->wx_sem);
 #if 1
-		ret = ieee80211_wx_set_gen_ie(priv->ieee80211, extra, wrqu->data.length);
+	ret = ieee80211_wx_set_gen_ie(priv->ieee80211, extra, wrqu->data.length);
 #endif
-		up(&priv->wx_sem);
-		return ret;
+	up(&priv->wx_sem);
+	return ret;
 
 
 }
-- 
cgit 


From 0c457490ded4fd6529791b650f45091f05b4be45 Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Fri, 25 Oct 2013 12:00:19 +0300
Subject: staging: rtl8187se: delete duplicated argument to |

This patch fixes the following coccinelle issue for a mask calculation:

drivers/staging/rtl8187se/r8180_core.c:2552:44-54: duplicated argument to & or |

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Reviewed-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/r8180_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8187se/r8180_core.c b/drivers/staging/rtl8187se/r8180_core.c
index 8d767f35ce89..76a67386b927 100644
--- a/drivers/staging/rtl8187se/r8180_core.c
+++ b/drivers/staging/rtl8187se/r8180_core.c
@@ -2549,7 +2549,7 @@ short rtl8180_init(struct net_device *dev)
 				(priv->EarlyRxThreshold == 7 ?
 					 RCR_ONLYERLPKT : 0);
 
-	priv->IntrMask		= IMR_TMGDOK | IMR_TBDER | IMR_THPDER |
+	priv->IntrMask		= IMR_TMGDOK | IMR_TBDER |
 				  IMR_THPDER | IMR_THPDOK |
 				  IMR_TVODER | IMR_TVODOK |
 				  IMR_TVIDER | IMR_TVIDOK |
-- 
cgit 


From 216249819ff9fac9ba9f2d06c26194669b42a94a Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Sat, 26 Oct 2013 09:18:22 +0300
Subject: staging: rtl8192e: use memdup_user to simplify code

Use memdup_user rather than duplicating its implementation. This patch
fixes the following coccinelle warnings:

drivers/staging/rtl8192e/rtl8192e/rtl_core.c:2598:8-15: WARNING opportunity for memdup_user
drivers/staging/rtl8192e/rtllib_softmac.c:3594:9-16: WARNING opportunity for memdup_user

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192e/rtl8192e/rtl_core.c | 11 +++--------
 drivers/staging/rtl8192e/rtllib_softmac.c    | 11 +++--------
 2 files changed, 6 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
index 6ba02fcd57da..bd8c9a2970fc 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
@@ -2593,14 +2593,9 @@ static int rtl8192_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
 			goto out;
 		}
 
-		ipw = kmalloc(p->length, GFP_KERNEL);
-		if (ipw == NULL) {
-			ret = -ENOMEM;
-			goto out;
-		}
-		if (copy_from_user(ipw, p->pointer, p->length)) {
-			kfree(ipw);
-			ret = -EFAULT;
+		ipw = memdup_user(p->pointer, p->length);
+		if (IS_ERR(ipw)) {
+			ret = PTR_ERR(ipw);
 			goto out;
 		}
 
diff --git a/drivers/staging/rtl8192e/rtllib_softmac.c b/drivers/staging/rtl8192e/rtllib_softmac.c
index e74d24212a39..671fb5ac5744 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac.c
@@ -3590,14 +3590,9 @@ int rtllib_wpa_supplicant_ioctl(struct rtllib_device *ieee, struct iw_point *p,
 		goto out;
 	}
 
-	param = kmalloc(p->length, GFP_KERNEL);
-	if (param == NULL) {
-		ret = -ENOMEM;
-		goto out;
-	}
-	if (copy_from_user(param, p->pointer, p->length)) {
-		kfree(param);
-		ret = -EFAULT;
+	param = memdup_user(p->pointer, p->length);
+	if (IS_ERR(param)) {
+		ret = PTR_ERR(param);
 		goto out;
 	}
 
-- 
cgit 


From 1f74c04d224a2885974c62ff425e422a54579c36 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sat, 26 Oct 2013 17:59:50 +0530
Subject: Staging: sbe-2t3e3: Fix smatch warning of function definition with
 external linkage

This patch fixes the following smatch warning in cpld.c-
drivers/staging/sbe-2t3e3/cpld.c:243:13: warning: function 'cpld_set_clock' with external linkage has definition

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/sbe-2t3e3/cpld.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/sbe-2t3e3/cpld.c b/drivers/staging/sbe-2t3e3/cpld.c
index 27365f9bc0b0..c6370d3d637f 100644
--- a/drivers/staging/sbe-2t3e3/cpld.c
+++ b/drivers/staging/sbe-2t3e3/cpld.c
@@ -240,7 +240,7 @@ void cpld_select_panel(struct channel *sc, u32 panel)
 }
 
 
-extern void cpld_set_clock(struct channel *sc, u32 mode)
+void cpld_set_clock(struct channel *sc, u32 mode)
 {
 	if (sc->p.clock_source == mode)
 		return;
-- 
cgit 


From bb6c3422c41274e7d36cb479ded104368687da9b Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sat, 26 Oct 2013 23:11:22 +0530
Subject: Staging: dwc2: Fix conditional statement since urb->actual_length is
 never less than zero.

This patch fixes the following smatch warning in hcd.c:
drivers/staging/dwc2/hcd.c:787 dwc2_assign_and_init_hc() warn: unsigned 'urb->actual_length' is never less than zero.

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dwc2/hcd.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/dwc2/hcd.c b/drivers/staging/dwc2/hcd.c
index 83629d84155d..3cfd2d5152c9 100644
--- a/drivers/staging/dwc2/hcd.c
+++ b/drivers/staging/dwc2/hcd.c
@@ -784,8 +784,8 @@ static int dwc2_assign_and_init_hc(struct dwc2_hsotg *hsotg, struct dwc2_qh *qh)
 	chan->data_pid_start = qh->data_toggle;
 	chan->multi_count = 1;
 
-	if ((urb->actual_length < 0 || urb->actual_length > urb->length) &&
-	    !dwc2_hcd_is_pipe_in(&urb->pipe_info))
+	if (urb->actual_length > urb->length &&
+		!dwc2_hcd_is_pipe_in(&urb->pipe_info))
 		urb->actual_length = urb->length;
 
 	if (hsotg->core_params->dma_enable > 0) {
-- 
cgit 


From 097f261217a9159e76963cbcbc33f8cad59c651a Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sat, 26 Oct 2013 23:12:19 +0530
Subject: Staging: dwc2: Fix return error value in dwc2_driver_probe()

This patch fixes the following smatch warning in platform.c-
drivers/staging/dwc2/platform.c:109 dwc2_driver_probe() info: why not propagate 'irq' from platform_get_irq() instead of (-22)?

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dwc2/platform.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/dwc2/platform.c b/drivers/staging/dwc2/platform.c
index 44cce2fa6361..76ae6e210f55 100644
--- a/drivers/staging/dwc2/platform.c
+++ b/drivers/staging/dwc2/platform.c
@@ -106,7 +106,7 @@ static int dwc2_driver_probe(struct platform_device *dev)
 	irq = platform_get_irq(dev, 0);
 	if (irq < 0) {
 		dev_err(&dev->dev, "missing IRQ resource\n");
-		return -EINVAL;
+		return irq;
 	}
 
 	res = platform_get_resource(dev, IORESOURCE_MEM, 0);
-- 
cgit 


From dfff0c3f528cc1c86c2f6d010cedd6394875cc37 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sun, 27 Oct 2013 19:49:38 +0530
Subject: Staging: ft1000: Fix assignment of bool to non-0/1 constant in
 ft1000_usb.c

This patch fixes the following coccinelle error in ft1000-usb/ft1000_usb.c-
drivers/staging/ft1000/ft1000-usb/ft1000_usb.c:50:4-18: ERROR: Assignment of bool to non-0/1 constant
drivers/staging/ft1000/ft1000-usb/ft1000_usb.c:174:1-15: ERROR: Assignment of bool to non-0/1 constant
drivers/staging/ft1000/ft1000-usb/ft1000_usb.c:39:12-26: ERROR: Assignment of bool to non-0/1 constant

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_usb.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_usb.c b/drivers/staging/ft1000/ft1000-usb/ft1000_usb.c
index 29a7cd23845d..a8dd1e54878c 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_usb.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_usb.c
@@ -36,7 +36,7 @@ static struct usb_device_id id_table[] = {
 
 MODULE_DEVICE_TABLE(usb, id_table);
 
-static bool gPollingfailed = FALSE;
+static bool gPollingfailed = false;
 static int ft1000_poll_thread(void *arg)
 {
 	int ret;
@@ -47,7 +47,7 @@ static int ft1000_poll_thread(void *arg)
 			ret = ft1000_poll(arg);
 			if (ret != STATUS_SUCCESS) {
 				DEBUG("ft1000_poll_thread: polling failed\n");
-				gPollingfailed = TRUE;
+				gPollingfailed = true;
 			}
 		}
 	}
@@ -171,7 +171,7 @@ static int ft1000_probe(struct usb_interface *interface,
 		goto err_load;
 	}
 
-	gPollingfailed = FALSE;
+	gPollingfailed = false;
 	ft1000dev->pPollThread =
 	    kthread_run(ft1000_poll_thread, ft1000dev, "ft1000_poll");
 
-- 
cgit 


From 36f955bf06ccc5edf8133368cb077707a01eba6c Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sun, 27 Oct 2013 19:50:45 +0530
Subject: Staging: ft1000: Fix assignment of bool to non-0/1 constant in
 ft1000_download.c

This patch fixes the following coccinelle error in ft1000-usb/ft1000_download.c -

drivers/staging/ft1000/ft1000-usb/ft1000_download.c:615:1-16: ERROR: Assignment of bool to non-0/1 constant
drivers/staging/ft1000/ft1000-usb/ft1000_download.c:926:5-20: ERROR: Assignment of bool to non-0/1 constant
drivers/staging/ft1000/ft1000-usb/ft1000_download.c:943:7-22: ERROR: Assignment of bool to non-0/1 constant

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_download.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index 1a1413d31af6..bfffce5b1445 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -612,7 +612,7 @@ u16 scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 
 	loader_code_address = file_hdr->loader_code_address;
 	loader_code_size = file_hdr->loader_code_size;
-	correct_version = FALSE;
+	correct_version = false;
 
 	while ((status == STATUS_SUCCESS) && (state != STATE_DONE_FILE)) {
 		switch (state) {
@@ -923,7 +923,7 @@ u16 scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 				case REQUEST_CODE_BY_VERSION:
 					DEBUG
 					    ("FT1000:download:REQUEST_CODE_BY_VERSION\n");
-					correct_version = FALSE;
+					correct_version = false;
 					requested_version =
 					    get_request_value(ft1000dev);
 
@@ -940,7 +940,7 @@ u16 scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 
 						if (dsp_img_info->version ==
 						    requested_version) {
-							correct_version = TRUE;
+							correct_version = true;
 							DEBUG
 							    ("FT1000:download: correct_version is TRUE\n");
 							s_file =
-- 
cgit 


From a68d106cb1cef5cab46807e4c26b75c9f94b92a3 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sun, 27 Oct 2013 19:51:59 +0530
Subject: Staging: ft1000: Fix assignment of bool to 0/1 in ft1000_hw.c

This patch fixes the following coccinelle warning in ft1000-usb/ft1000_hw.c-

drivers/staging/ft1000/ft1000-usb/ft1000_hw.c:1444:1-19: WARNING: Assignment of bool to 0/1
drivers/staging/ft1000/ft1000-usb/ft1000_hw.c:1937:16-34: WARNING: Assignment of bool to 0/1
drivers/staging/ft1000/ft1000-usb/ft1000_hw.c:1938:16-35: WARNING: Assignment of bool to 0/1
drivers/staging/ft1000/ft1000-usb/ft1000_hw.c:1570:4-22: WARNING: Assignment of bool to 0/1
drivers/staging/ft1000/ft1000-usb/ft1000_hw.c:1575:4-22: WARNING: Assignment of bool to 0/1
drivers/staging/ft1000/ft1000-usb/ft1000_hw.c:636:1-26: WARNING: Assignment of bool to 0/1
drivers/staging/ft1000/ft1000-usb/ft1000_hw.c:638:1-25: WARNING: Assignment of bool to 0/1
drivers/staging/ft1000/ft1000-usb/ft1000_hw.c:669:1-26: WARNING: Assignment of bool to 0/1
drivers/staging/ft1000/ft1000-usb/ft1000_hw.c:755:1-23: WARNING: Assignment of bool to 0/1
drivers/staging/ft1000/ft1000-usb/ft1000_hw.c:756:1-26: WARNING: Assignment of bool to 0/1

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_hw.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c b/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
index b8beddcd2f56..ca8c7b217640 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
@@ -628,9 +628,9 @@ static int ft1000_reset_card(struct net_device *dev)
 
 	DEBUG("ft1000_hw:ft1000_reset_card called.....\n");
 
-	ft1000dev->fCondResetPend = 1;
+	ft1000dev->fCondResetPend = true;
 	info->CardReady = 0;
-	ft1000dev->fProvComplete = 0;
+	ft1000dev->fProvComplete = false;
 
 	/* Make sure we free any memory reserve for provisioning */
 	while (list_empty(&info->prov_list) == 0) {
@@ -661,7 +661,7 @@ static int ft1000_reset_card(struct net_device *dev)
 
 	info->CardReady = 1;
 
-	ft1000dev->fCondResetPend = 0;
+	ft1000dev->fCondResetPend = false;
 
 	return TRUE;
 }
@@ -958,8 +958,8 @@ int init_ft1000_netdev(struct ft1000_usb *ft1000dev)
 	pInfo->DSP_TIME[1] = 0;
 	pInfo->DSP_TIME[2] = 0;
 	pInfo->DSP_TIME[3] = 0;
-	ft1000dev->fAppMsgPend = 0;
-	ft1000dev->fCondResetPend = 0;
+	ft1000dev->fAppMsgPend = false;
+	ft1000dev->fCondResetPend = false;
 	ft1000dev->usbboot = 0;
 	ft1000dev->dspalive = 0;
 	memset(&ft1000dev->tempbuf[0], 0, sizeof(ft1000dev->tempbuf));
@@ -1432,7 +1432,7 @@ static int ft1000_dsp_prov(void *arg)
 
 	msleep(100);
 
-	dev->fProvComplete = 1;
+	dev->fProvComplete = true;
 	info->CardReady = 1;
 
 	return STATUS_SUCCESS;
@@ -1558,12 +1558,12 @@ static int ft1000_proc_drvmsg(struct ft1000_usb *dev, u16 size)
 			 * Send provisioning data to DSP
 			 */
 			if (list_empty(&info->prov_list) == 0) {
-				dev->fProvComplete = 0;
+				dev->fProvComplete = false;
 				status = ft1000_dsp_prov(dev);
 				if (status != STATUS_SUCCESS)
 					goto out;
 			} else {
-				dev->fProvComplete = 1;
+				dev->fProvComplete = true;
 				status =
 				    ft1000_write_register(dev, FT1000_DB_HB,
 							  FT1000_REG_DOORBELL);
@@ -1925,8 +1925,8 @@ int ft1000_poll(void* dev_id)
                 info->ft1000_reset(dev->net);
             }
             else {
-                dev->fProvComplete = 0;
-                dev->fCondResetPend = 1;
+                dev->fProvComplete = false;
+                dev->fCondResetPend = true;
             }
 
             ft1000_write_register(dev, FT1000_DB_COND_RESET, FT1000_REG_DOORBELL);
-- 
cgit 


From 9d8fe1f788e64b90aa30dc100e67bf986ebbd803 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sun, 27 Oct 2013 19:52:51 +0530
Subject: Staging: ft1000: Fix comparsion of bool to 0/1 in ft1000_hw.c

This patch fixes the following coccinelle warning in ft1000-usb/ft1000_hw.c -

drivers/staging/ft1000/ft1000-usb/ft1000_hw.c:1924:9-25: WARNING: Comparison of bool to 0/1

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_hw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c b/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
index ca8c7b217640..ca5b56c290fa 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
@@ -1912,7 +1912,7 @@ int ft1000_poll(void* dev_id)
         else if (tempword & FT1000_DB_COND_RESET) {
             DEBUG("ft1000_poll: FT1000_REG_DOORBELL message type:  FT1000_DB_COND_RESET\n");
 
-	    if (dev->fAppMsgPend == 0) {
+	    if (!dev->fAppMsgPend) {
                // Reset ASIC and DSP
 
                 status    = ft1000_read_dpram16(dev, FT1000_MAG_DSP_TIMER0, (u8 *)&(info->DSP_TIME[0]), FT1000_MAG_DSP_TIMER0_INDX);
-- 
cgit 


From 93b2a6c847d50a2bdcda880a8f32c462f012dca3 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sun, 27 Oct 2013 19:53:36 +0530
Subject: Staging: ft1000: Fix assignment of bool to 0/1 in ft1000_dnld.c

This patch fixes the following warning in ft1000-pcmcia/ft1000_dnld.c-

drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c:307:6-18: WARNING: Assignment of bool to 0/1

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c
index 6311b2ff5816..d44e8583ad1e 100644
--- a/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c
+++ b/drivers/staging/ft1000/ft1000-pcmcia/ft1000_dnld.c
@@ -304,7 +304,7 @@ int card_download(struct net_device *dev, const u8 *pFileStart,
 	struct dsp_file_hdr *pFileHdr5;
 	struct dsp_image_info *pDspImageInfoV6 = NULL;
 	long requested_version;
-	bool bGoodVersion = 0;
+	bool bGoodVersion = false;
 	struct drv_msg *pMailBoxData;
 	u16 *pUsData = NULL;
 	u16 *pUsFile = NULL;
-- 
cgit 


From eb3836cefcc315c53ba25cb589f7b06aa962578b Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Sun, 27 Oct 2013 16:40:39 -0700
Subject: staging: ft1000: function scram_start_dwnld extracted from
 scram_dnldr in ft1000_download.c

function scram_dnldr is over 500 lines long, with deep indents that
trigger checkpatch warnings for too many tabs. It mainly consists of a
switch statement with long, complicated cases. The first case has been
extracted to form the helper function scram_start_dwnld. Some style
issues in the extracted lines have been corrected as well.

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../staging/ft1000/ft1000-usb/ft1000_download.c    | 46 +++++++++++-----------
 1 file changed, 23 insertions(+), 23 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index bfffce5b1445..4ac92eea3896 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -554,6 +554,27 @@ static u32 write_blk_fifo(struct ft1000_usb *ft1000dev, u16 **pUsFile,
 	return Status;
 }
 
+static int scram_start_dwnld(struct ft1000_usb *ft1000dev, u16 *hshake,
+		u32 *state)
+{
+	int status = STATUS_SUCCESS;
+
+	DEBUG("FT1000:STATE_START_DWNLD\n");
+	if (ft1000dev->usbboot)
+		*hshake = get_handshake_usb(ft1000dev, HANDSHAKE_DSP_BL_READY);
+	else
+		*hshake = get_handshake(ft1000dev, HANDSHAKE_DSP_BL_READY);
+	if (*hshake == HANDSHAKE_DSP_BL_READY) {
+		DEBUG("scram_dnldr: handshake is HANDSHAKE_DSP_BL_READY, call put_handshake(HANDSHAKE_DRIVER_READY)\n");
+		put_handshake(ft1000dev, HANDSHAKE_DRIVER_READY);
+	} else {
+		DEBUG("FT1000:download:Download error: Handshake failed\n");
+		status = STATUS_FAILURE;
+	}
+	*state = STATE_BOOT_DWNLD;
+	return status;
+}
+
 /* Scramble downloader for Harley based ASIC via USB interface */
 u16 scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 		u32 FileLength)
@@ -617,29 +638,8 @@ u16 scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 	while ((status == STATUS_SUCCESS) && (state != STATE_DONE_FILE)) {
 		switch (state) {
 		case STATE_START_DWNLD:
-			DEBUG("FT1000:STATE_START_DWNLD\n");
-			if (ft1000dev->usbboot)
-				handshake =
-				    get_handshake_usb(ft1000dev,
-						      HANDSHAKE_DSP_BL_READY);
-			else
-				handshake =
-				    get_handshake(ft1000dev,
-						  HANDSHAKE_DSP_BL_READY);
-
-			if (handshake == HANDSHAKE_DSP_BL_READY) {
-				DEBUG
-				    ("scram_dnldr: handshake is HANDSHAKE_DSP_BL_READY, call put_handshake(HANDSHAKE_DRIVER_READY)\n");
-				put_handshake(ft1000dev,
-					      HANDSHAKE_DRIVER_READY);
-			} else {
-				DEBUG
-				    ("FT1000:download:Download error: Handshake failed\n");
-				status = STATUS_FAILURE;
-			}
-
-			state = STATE_BOOT_DWNLD;
-
+			status = scram_start_dwnld(ft1000dev, &handshake,
+						   &state);
 			break;
 
 		case STATE_BOOT_DWNLD:
-- 
cgit 


From f3372c01816ec9e974e449cf7233408a31647dd3 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 1 Oct 2013 12:57:20 +0200
Subject: ARM: gemini: convert to GENERIC_CLOCKEVENTS

This converts the gemini machine to use generic clockevents
by rewriting the timer driver.

Cc: arm@kernel.org
Cc: Hans Ulli Kroll <ulli.kroll@googlemail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/Kconfig            |  3 +-
 arch/arm/mach-gemini/time.c | 97 +++++++++++++++++++++++++++++++++++++++++----
 2 files changed, 91 insertions(+), 9 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 25ad39a52ecd..e98261cb05bd 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -384,8 +384,9 @@ config ARCH_CLPS711X
 config ARCH_GEMINI
 	bool "Cortina Systems Gemini"
 	select ARCH_REQUIRE_GPIOLIB
-	select ARCH_USES_GETTIMEOFFSET
+	select CLKSRC_MMIO
 	select CPU_FA526
+	select GENERIC_CLOCKEVENTS
 	select NEED_MACH_GPIO_H
 	help
 	  Support for the Cortina Systems Gemini family SoCs
diff --git a/arch/arm/mach-gemini/time.c b/arch/arm/mach-gemini/time.c
index 21dc5a89d1c4..0a63c4d25b64 100644
--- a/arch/arm/mach-gemini/time.c
+++ b/arch/arm/mach-gemini/time.c
@@ -13,6 +13,8 @@
 #include <mach/hardware.h>
 #include <mach/global_reg.h>
 #include <asm/mach/time.h>
+#include <linux/clockchips.h>
+#include <linux/clocksource.h>
 
 /*
  * Register definitions for the timers
@@ -33,19 +35,89 @@
 #define TIMER_3_CR_CLOCK		(1 << 7)
 #define TIMER_3_CR_INT			(1 << 8)
 
+static unsigned int tick_rate;
+
+static int gemini_timer_set_next_event(unsigned long cycles,
+				       struct clock_event_device *evt)
+{
+	u32 cr;
+
+	cr = readl(TIMER_CR(IO_ADDRESS(GEMINI_TIMER_BASE)));
+
+	/* This may be overdoing it, feel free to test without this */
+	cr &= ~TIMER_2_CR_ENABLE;
+	cr &= ~TIMER_2_CR_INT;
+	writel(cr, TIMER_CR(IO_ADDRESS(GEMINI_TIMER_BASE)));
+
+	/* Set next event */
+	writel(cycles, TIMER_COUNT(IO_ADDRESS(GEMINI_TIMER2_BASE)));
+	writel(cycles, TIMER_LOAD(IO_ADDRESS(GEMINI_TIMER2_BASE)));
+	cr |= TIMER_2_CR_ENABLE;
+	cr |= TIMER_2_CR_INT;
+	writel(cr, TIMER_CR(IO_ADDRESS(GEMINI_TIMER_BASE)));
+
+	return 0;
+}
+
+static void gemini_timer_set_mode(enum clock_event_mode mode,
+				  struct clock_event_device *evt)
+{
+	u32 period = DIV_ROUND_CLOSEST(tick_rate, HZ);
+	u32 cr;
+
+	switch (mode) {
+        case CLOCK_EVT_MODE_PERIODIC:
+		/* Start the timer */
+		writel(period,
+		       TIMER_COUNT(IO_ADDRESS(GEMINI_TIMER2_BASE)));
+		writel(period,
+		       TIMER_LOAD(IO_ADDRESS(GEMINI_TIMER2_BASE)));
+		cr = readl(TIMER_CR(IO_ADDRESS(GEMINI_TIMER_BASE)));
+		cr |= TIMER_2_CR_ENABLE;
+		cr |= TIMER_2_CR_INT;
+		writel(cr, TIMER_CR(IO_ADDRESS(GEMINI_TIMER_BASE)));
+		break;
+	case CLOCK_EVT_MODE_ONESHOT:
+	case CLOCK_EVT_MODE_UNUSED:
+        case CLOCK_EVT_MODE_SHUTDOWN:
+	case CLOCK_EVT_MODE_RESUME:
+		/*
+		 * Disable also for oneshot: the set_next() call will
+		 * arm the timer instead.
+		 */
+		cr = readl(TIMER_CR(IO_ADDRESS(GEMINI_TIMER_BASE)));
+		cr &= ~TIMER_2_CR_ENABLE;
+		cr &= ~TIMER_2_CR_INT;
+		writel(cr, TIMER_CR(IO_ADDRESS(GEMINI_TIMER_BASE)));
+		break;
+	default:
+                break;
+	}
+}
+
+/* Use TIMER2 as clock event */
+static struct clock_event_device gemini_clockevent = {
+	.name		= "TIMER2",
+	.rating		= 300, /* Reasonably fast and accurate clock event */
+	.features	= CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
+	.set_next_event	= gemini_timer_set_next_event,
+	.set_mode	= gemini_timer_set_mode,
+};
+
 /*
  * IRQ handler for the timer
  */
 static irqreturn_t gemini_timer_interrupt(int irq, void *dev_id)
 {
-	timer_tick();
+	struct clock_event_device *evt = &gemini_clockevent;
 
+	evt->event_handler(evt);
 	return IRQ_HANDLED;
 }
 
 static struct irqaction gemini_timer_irq = {
 	.name		= "Gemini Timer Tick",
-	.flags		= IRQF_DISABLED | IRQF_TIMER,
+	.flags		= IRQF_TIMER,
 	.handler	= gemini_timer_interrupt,
 };
 
@@ -54,9 +126,9 @@ static struct irqaction gemini_timer_irq = {
  */
 void __init gemini_timer_init(void)
 {
-	unsigned int tick_rate, reg_v;
+	u32 reg_v;
 
-	reg_v = __raw_readl(IO_ADDRESS(GEMINI_GLOBAL_BASE + GLOBAL_STATUS));
+	reg_v = readl(IO_ADDRESS(GEMINI_GLOBAL_BASE + GLOBAL_STATUS));
 	tick_rate = REG_TO_AHB_SPEED(reg_v) * 1000000;
 
 	printk(KERN_INFO "Bus: %dMHz", tick_rate / 1000000);
@@ -82,8 +154,17 @@ void __init gemini_timer_init(void)
 	 * Make irqs happen for the system timer
 	 */
 	setup_irq(IRQ_TIMER2, &gemini_timer_irq);
-	/* Start the timer */
-	__raw_writel(tick_rate / HZ, TIMER_COUNT(IO_ADDRESS(GEMINI_TIMER2_BASE)));
-	__raw_writel(tick_rate / HZ, TIMER_LOAD(IO_ADDRESS(GEMINI_TIMER2_BASE)));
-	__raw_writel(TIMER_2_CR_ENABLE | TIMER_2_CR_INT, TIMER_CR(IO_ADDRESS(GEMINI_TIMER_BASE)));
+
+	/* Enable and use TIMER1 as clock source */
+	writel(0xffffffff, TIMER_COUNT(IO_ADDRESS(GEMINI_TIMER1_BASE)));
+	writel(0xffffffff, TIMER_LOAD(IO_ADDRESS(GEMINI_TIMER1_BASE)));
+	writel(TIMER_1_CR_ENABLE, TIMER_CR(IO_ADDRESS(GEMINI_TIMER_BASE)));
+	if (clocksource_mmio_init(TIMER_COUNT(IO_ADDRESS(GEMINI_TIMER1_BASE)),
+				  "TIMER1", tick_rate, 300, 32,
+				  clocksource_mmio_readl_up))
+		pr_err("timer: failed to initialize gemini clock source\n");
+
+	/* Configure and register the clockevent */
+	clockevents_config_and_register(&gemini_clockevent, tick_rate,
+					1, 0xffffffff);
 }
-- 
cgit 


From e3bfab18483a26649ff9cb605aa1410386b1e498 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Wed, 2 Oct 2013 09:48:15 -0400
Subject: sunrpc: comment typo fix

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 net/sunrpc/xprtsock.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 9928ba164d62..9deed17fd3e4 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -2872,8 +2872,8 @@ static struct rpc_xprt *xs_setup_bc_tcp(struct xprt_create *args)
 	if (args->bc_xprt->xpt_bc_xprt) {
 		/*
 		 * This server connection already has a backchannel
-		 * export; we can't create a new one, as we wouldn't be
-		 * able to match replies based on xid any more.  So,
+		 * transport; we can't create a new one, as we wouldn't
+		 * be able to match replies based on xid any more.  So,
 		 * reuse the already-existing one:
 		 */
 		 return args->bc_xprt->xpt_bc_xprt;
-- 
cgit 


From 4f5829d72636513e23a5f76355536776bf390a8a Mon Sep 17 00:00:00 2001
From: "Geyslan G. Bem" <geyslan@gmail.com>
Date: Fri, 11 Oct 2013 17:15:54 -0300
Subject: nfs: Remove useless 'error' assignment

the 'error' variable was been assigned twice in vain.

Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/unlink.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/nfs/unlink.c b/fs/nfs/unlink.c
index bb939edd4c99..0c29b1bb3936 100644
--- a/fs/nfs/unlink.c
+++ b/fs/nfs/unlink.c
@@ -493,7 +493,7 @@ nfs_sillyrename(struct inode *dir, struct dentry *dentry)
 	unsigned long long fileid;
 	struct dentry *sdentry;
 	struct rpc_task *task;
-	int            error = -EIO;
+	int            error = -EBUSY;
 
 	dfprintk(VFS, "NFS: silly-rename(%s/%s, ct=%d)\n",
 		dentry->d_parent->d_name.name, dentry->d_name.name,
@@ -503,7 +503,6 @@ nfs_sillyrename(struct inode *dir, struct dentry *dentry)
 	/*
 	 * We don't allow a dentry to be silly-renamed twice.
 	 */
-	error = -EBUSY;
 	if (dentry->d_flags & DCACHE_NFSFS_RENAMED)
 		goto out;
 
-- 
cgit 


From 54bcfa6682cfc7ee19dee0e94587f8f55a440df6 Mon Sep 17 00:00:00 2001
From: "Geyslan G. Bem" <geyslan@gmail.com>
Date: Mon, 14 Oct 2013 17:24:15 -0300
Subject: nfs: Use PTR_ERR_OR_ZERO in 'nfs41_callback_up' function

Use 'PTR_ERR_OR_ZERO()' rather than 'IS_ERR(...) ? PTR_ERR(...) : 0'.

Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/callback.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/nfs/callback.c b/fs/nfs/callback.c
index 67cd73213168..073b4cf67ed9 100644
--- a/fs/nfs/callback.c
+++ b/fs/nfs/callback.c
@@ -164,8 +164,7 @@ nfs41_callback_up(struct svc_serv *serv)
 		svc_xprt_put(serv->sv_bc_xprt);
 		serv->sv_bc_xprt = NULL;
 	}
-	dprintk("--> %s return %ld\n", __func__,
-		IS_ERR(rqstp) ? PTR_ERR(rqstp) : 0);
+	dprintk("--> %s return %d\n", __func__, PTR_ERR_OR_ZERO(rqstp));
 	return rqstp;
 }
 
-- 
cgit 


From 6706246b22358b70b49e35a988a9bbfa830619ee Mon Sep 17 00:00:00 2001
From: "Geyslan G. Bem" <geyslan@gmail.com>
Date: Mon, 14 Oct 2013 17:24:16 -0300
Subject: nfs: Use PTR_ERR_OR_ZERO in 'nfs/nfs4super.c'

Use 'PTR_ERR_OR_ZERO()' rather than 'IS_ERR(...) ? PTR_ERR(...) : 0'.

Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4super.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/fs/nfs/nfs4super.c b/fs/nfs/nfs4super.c
index e26acdd1a645..65ab0a0ca1c4 100644
--- a/fs/nfs/nfs4super.c
+++ b/fs/nfs/nfs4super.c
@@ -261,9 +261,9 @@ struct dentry *nfs4_try_mount(int flags, const char *dev_name,
 
 	res = nfs_follow_remote_path(root_mnt, export_path);
 
-	dfprintk(MOUNT, "<-- nfs4_try_mount() = %ld%s\n",
-			IS_ERR(res) ? PTR_ERR(res) : 0,
-			IS_ERR(res) ? " [error]" : "");
+	dfprintk(MOUNT, "<-- nfs4_try_mount() = %d%s\n",
+		 PTR_ERR_OR_ZERO(res),
+		 IS_ERR(res) ? " [error]" : "");
 	return res;
 }
 
@@ -319,9 +319,9 @@ static struct dentry *nfs4_referral_mount(struct file_system_type *fs_type,
 	data->mnt_path = export_path;
 
 	res = nfs_follow_remote_path(root_mnt, export_path);
-	dprintk("<-- nfs4_referral_mount() = %ld%s\n",
-			IS_ERR(res) ? PTR_ERR(res) : 0,
-			IS_ERR(res) ? " [error]" : "");
+	dprintk("<-- nfs4_referral_mount() = %d%s\n",
+		PTR_ERR_OR_ZERO(res),
+		IS_ERR(res) ? " [error]" : "");
 	return res;
 }
 
-- 
cgit 


From 8313164c36473193c8034de643dc32f35a22bf59 Mon Sep 17 00:00:00 2001
From: wangweidong <wangweidong1@huawei.com>
Date: Tue, 15 Oct 2013 11:44:30 +0800
Subject: SUNRPC: remove an unnecessary if statement

If req allocated failed just goto out_free, no need to check the
'i < num_prealloc'. There is just code simplification, no
functional changes.

Signed-off-by: Wang Weidong <wangweidong1@huawei.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 net/sunrpc/xprt.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c
index 4953550537e0..04199bc8416f 100644
--- a/net/sunrpc/xprt.c
+++ b/net/sunrpc/xprt.c
@@ -1104,11 +1104,9 @@ struct rpc_xprt *xprt_alloc(struct net *net, size_t size,
 	for (i = 0; i < num_prealloc; i++) {
 		req = kzalloc(sizeof(struct rpc_rqst), GFP_KERNEL);
 		if (!req)
-			break;
+			goto out_free;
 		list_add(&req->rq_list, &xprt->free);
 	}
-	if (i < num_prealloc)
-		goto out_free;
 	if (max_alloc > num_prealloc)
 		xprt->max_reqs = max_alloc;
 	else
-- 
cgit 


From 5fccc5b52ee07d07a74ce53c6f174bff81e26a16 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Mon, 28 Oct 2013 18:41:44 -0400
Subject: SUNRPC: gss_alloc_msg - choose _either_ a v0 message or a v1 message

Add the missing 'break' to ensure that we don't corrupt a legacy 'v0' type
message by appending the 'v1'.

Cc: Bruce Fields <bfields@fieldses.org>
Cc: stable@vger.kernel.org
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 net/sunrpc/auth_gss/auth_gss.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 084656671d6e..cc24323d3045 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -482,6 +482,7 @@ gss_alloc_msg(struct gss_auth *gss_auth,
 	switch (vers) {
 	case 0:
 		gss_encode_v0_msg(gss_msg);
+		break;
 	default:
 		gss_encode_v1_msg(gss_msg, service_name, gss_auth->target_name);
 	};
-- 
cgit 


From 9d3a2260f0f4bd6379b0a0f131c743fff25b0029 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Mon, 28 Oct 2013 18:18:00 -0400
Subject: SUNRPC: Fix buffer overflow checking in
 gss_encode_v0_msg/gss_encode_v1_msg

In gss_encode_v1_msg, it is pointless to BUG() after the overflow has
happened. Replace the existing sprintf()-based code with scnprintf(),
and warn if an overflow is ever triggered.

In gss_encode_v0_msg, replace the runtime BUG_ON() with an appropriate
compile-time BUILD_BUG_ON.

Reported-by: Bruce Fields <bfields@fieldses.org>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 net/sunrpc/auth_gss/auth_gss.c | 56 ++++++++++++++++++++++++++++--------------
 1 file changed, 37 insertions(+), 19 deletions(-)

diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index cc24323d3045..97912b40c254 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -420,41 +420,53 @@ static void gss_encode_v0_msg(struct gss_upcall_msg *gss_msg)
 	memcpy(gss_msg->databuf, &uid, sizeof(uid));
 	gss_msg->msg.data = gss_msg->databuf;
 	gss_msg->msg.len = sizeof(uid);
-	BUG_ON(sizeof(uid) > UPCALL_BUF_LEN);
+
+	BUILD_BUG_ON(sizeof(uid) > sizeof(gss_msg->databuf));
 }
 
-static void gss_encode_v1_msg(struct gss_upcall_msg *gss_msg,
+static int gss_encode_v1_msg(struct gss_upcall_msg *gss_msg,
 				const char *service_name,
 				const char *target_name)
 {
 	struct gss_api_mech *mech = gss_msg->auth->mech;
 	char *p = gss_msg->databuf;
-	int len = 0;
-
-	gss_msg->msg.len = sprintf(gss_msg->databuf, "mech=%s uid=%d ",
-				   mech->gm_name,
-				   from_kuid(&init_user_ns, gss_msg->uid));
-	p += gss_msg->msg.len;
+	size_t buflen = sizeof(gss_msg->databuf);
+	int len;
+
+	len = scnprintf(p, buflen, "mech=%s uid=%d ", mech->gm_name,
+			from_kuid(&init_user_ns, gss_msg->uid));
+	buflen -= len;
+	p += len;
+	gss_msg->msg.len = len;
 	if (target_name) {
-		len = sprintf(p, "target=%s ", target_name);
+		len = scnprintf(p, buflen, "target=%s ", target_name);
+		buflen -= len;
 		p += len;
 		gss_msg->msg.len += len;
 	}
 	if (service_name != NULL) {
-		len = sprintf(p, "service=%s ", service_name);
+		len = scnprintf(p, buflen, "service=%s ", service_name);
+		buflen -= len;
 		p += len;
 		gss_msg->msg.len += len;
 	}
 	if (mech->gm_upcall_enctypes) {
-		len = sprintf(p, "enctypes=%s ", mech->gm_upcall_enctypes);
+		len = scnprintf(p, buflen, "enctypes=%s ",
+				mech->gm_upcall_enctypes);
+		buflen -= len;
 		p += len;
 		gss_msg->msg.len += len;
 	}
-	len = sprintf(p, "\n");
+	len = scnprintf(p, buflen, "\n");
+	if (len == 0)
+		goto out_overflow;
 	gss_msg->msg.len += len;
 
 	gss_msg->msg.data = gss_msg->databuf;
-	BUG_ON(gss_msg->msg.len > UPCALL_BUF_LEN);
+	return 0;
+out_overflow:
+	WARN_ON_ONCE(1);
+	return -ENOMEM;
 }
 
 static struct gss_upcall_msg *
@@ -463,15 +475,15 @@ gss_alloc_msg(struct gss_auth *gss_auth,
 {
 	struct gss_upcall_msg *gss_msg;
 	int vers;
+	int err = -ENOMEM;
 
 	gss_msg = kzalloc(sizeof(*gss_msg), GFP_NOFS);
 	if (gss_msg == NULL)
-		return ERR_PTR(-ENOMEM);
+		goto err;
 	vers = get_pipe_version(gss_auth->net);
-	if (vers < 0) {
-		kfree(gss_msg);
-		return ERR_PTR(vers);
-	}
+	err = vers;
+	if (err < 0)
+		goto err_free_msg;
 	gss_msg->pipe = gss_auth->gss_pipe[vers]->pipe;
 	INIT_LIST_HEAD(&gss_msg->list);
 	rpc_init_wait_queue(&gss_msg->rpc_waitqueue, "RPCSEC_GSS upcall waitq");
@@ -484,9 +496,15 @@ gss_alloc_msg(struct gss_auth *gss_auth,
 		gss_encode_v0_msg(gss_msg);
 		break;
 	default:
-		gss_encode_v1_msg(gss_msg, service_name, gss_auth->target_name);
+		err = gss_encode_v1_msg(gss_msg, service_name, gss_auth->target_name);
+		if (err)
+			goto err_free_msg;
 	};
 	return gss_msg;
+err_free_msg:
+	kfree(gss_msg);
+err:
+	return ERR_PTR(err);
 }
 
 static struct gss_upcall_msg *
-- 
cgit 


From e0f244c63fc9d192dfd399cc2677bbdca61994b1 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Wed, 23 Oct 2013 10:57:58 +1030
Subject: asmlinkage, module: Make ksymtab and kcrctab symbols and
 __this_module __visible

Make the ksymtab symbols for EXPORT_SYMBOL visible.
This prevents the LTO compiler from adding a .NUMBER prefix,
which avoids various problems in later export processing.

Cc: rusty@rustcorp.com.au
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 include/linux/export.h | 4 ++--
 scripts/mod/modpost.c  | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/export.h b/include/linux/export.h
index 412cd509effe..3f2793d51899 100644
--- a/include/linux/export.h
+++ b/include/linux/export.h
@@ -43,7 +43,7 @@ extern struct module __this_module;
 /* Mark the CRC weak since genksyms apparently decides not to
  * generate a checksums for some symbols */
 #define __CRC_SYMBOL(sym, sec)					\
-	extern void *__crc_##sym __attribute__((weak));		\
+	extern __visible void *__crc_##sym __attribute__((weak));		\
 	static const unsigned long __kcrctab_##sym		\
 	__used							\
 	__attribute__((section("___kcrctab" sec "+" #sym), unused))	\
@@ -59,7 +59,7 @@ extern struct module __this_module;
 	static const char __kstrtab_##sym[]			\
 	__attribute__((section("__ksymtab_strings"), aligned(1))) \
 	= VMLINUX_SYMBOL_STR(sym);				\
-	static const struct kernel_symbol __ksymtab_##sym	\
+	__visible const struct kernel_symbol __ksymtab_##sym	\
 	__used							\
 	__attribute__((section("___ksymtab" sec "+" #sym), unused))	\
 	= { (unsigned long)&sym, __kstrtab_##sym }
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 393706b37774..9b873ac6ed7b 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -1861,7 +1861,7 @@ static void add_header(struct buffer *b, struct module *mod)
 	buf_printf(b, "\n");
 	buf_printf(b, "MODULE_INFO(vermagic, VERMAGIC_STRING);\n");
 	buf_printf(b, "\n");
-	buf_printf(b, "struct module __this_module\n");
+	buf_printf(b, "__visible struct module __this_module\n");
 	buf_printf(b, "__attribute__((section(\".gnu.linkonce.this_module\"))) = {\n");
 	buf_printf(b, "\t.name = KBUILD_MODNAME,\n");
 	if (mod->has_init)
-- 
cgit 


From a3f432bfd06a4ec3b812e32d3266e0d1ad75d008 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Tue, 15 Oct 2013 17:03:16 -0400
Subject: nfs: use IS_ROOT not DCACHE_DISCONNECTED

This check was added by Al Viro with
d9e80b7de91db05c1c4d2e5ebbfd70b3b3ba0e0f "nfs d_revalidate() is too
trigger-happy with d_drop()", with the explanation that we don't want to
remove the root of a disconnected tree, which will still be included on
the s_anon list.

But DCACHE_DISCONNECTED does *not* actually identify dentries that are
disconnected from the dentry tree or hashed on s_anon.  IS_ROOT() is the
way to do that.

Also add a comment from Al's commit to remind us why this check is
there.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/dir.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 02b0df769e2d..6cc51ae0638d 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1139,7 +1139,13 @@ out_zap_parent:
 	if (inode && S_ISDIR(inode->i_mode)) {
 		/* Purge readdir caches. */
 		nfs_zap_caches(inode);
-		if (dentry->d_flags & DCACHE_DISCONNECTED)
+		/*
+		 * We can't d_drop the root of a disconnected tree:
+		 * its d_hash is on the s_anon list and d_drop() would hide
+		 * it from shrink_dcache_for_unmount(), leading to busy
+		 * inodes on unmount and further oopses.
+		 */
+		if (IS_ROOT(dentry))
 			goto out_valid;
 	}
 	/* If we have submounts, don't unhash ! */
-- 
cgit 


From 545f3613a88f97d6ef5647376213bbca87d7596e Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Mon, 28 Oct 2013 10:24:16 +0100
Subject: 6lowpan: remove unnecessary ret variable

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Werner Almesberger <werner@almesberger.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ieee802154/6lowpan.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index ff41b4d60d30..d2880352344e 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -1120,7 +1120,7 @@ lowpan_fragment_xmit(struct sk_buff *skb, u8 *head,
 			int mlen, int plen, int offset, int type)
 {
 	struct sk_buff *frag;
-	int hlen, ret;
+	int hlen;
 
 	hlen = (type == LOWPAN_DISPATCH_FRAG1) ?
 			LOWPAN_FRAG1_HEAD_SIZE : LOWPAN_FRAGN_HEAD_SIZE;
@@ -1145,9 +1145,7 @@ lowpan_fragment_xmit(struct sk_buff *skb, u8 *head,
 	lowpan_raw_dump_table(__func__, " raw fragment dump", frag->data,
 								frag->len);
 
-	ret = dev_queue_xmit(frag);
-
-	return ret;
+	return dev_queue_xmit(frag);
 }
 
 static int
-- 
cgit 


From 53cb5717b491332df8e899a16246c223f64d069a Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Mon, 28 Oct 2013 10:24:17 +0100
Subject: 6lowpan: remove unnecessary check on err >= 0

The err variable can only be zero in this case.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Werner Almesberger <werner@almesberger.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ieee802154/6lowpan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index d2880352344e..9057f831dc1f 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -1179,7 +1179,7 @@ lowpan_skb_fragmentation(struct sk_buff *skb, struct net_device *dev)
 	head[0] &= ~LOWPAN_DISPATCH_FRAG1;
 	head[0] |= LOWPAN_DISPATCH_FRAGN;
 
-	while ((payload_length - offset > 0) && (err >= 0)) {
+	while (payload_length - offset > 0) {
 		int len = LOWPAN_FRAG_SIZE;
 
 		head[4] = offset / 8;
-- 
cgit 


From b614442f3442122a3460d947005d172ba2e35899 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Mon, 28 Oct 2013 10:24:18 +0100
Subject: 6lowpan: use netdev_alloc_skb instead dev_alloc_skb

This patch uses the netdev_alloc_skb instead dev_alloc_skb function and
drops the seperate assignment to skb->dev.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Werner Almesberger <werner@almesberger.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ieee802154/6lowpan.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index 9057f831dc1f..7506d83300b0 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -1127,12 +1127,12 @@ lowpan_fragment_xmit(struct sk_buff *skb, u8 *head,
 
 	lowpan_raw_dump_inline(__func__, "6lowpan fragment header", head, hlen);
 
-	frag = dev_alloc_skb(hlen + mlen + plen + IEEE802154_MFR_SIZE);
+	frag = netdev_alloc_skb(skb->dev,
+				hlen + mlen + plen + IEEE802154_MFR_SIZE);
 	if (!frag)
 		return -ENOMEM;
 
 	frag->priority = skb->priority;
-	frag->dev = skb->dev;
 
 	/* copy header, MFR and payload */
 	memcpy(skb_put(frag, mlen), skb->data, mlen);
-- 
cgit 


From b236b954de06c5a736b882ce66701ad1a86e12b1 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Mon, 28 Oct 2013 10:24:19 +0100
Subject: 6lowpan: remove skb->dev assignment

This patch removes the assignment of skb->dev. We don't need it here because
we use the netdev_alloc_skb_ip_align function which already sets the
skb->dev.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Werner Almesberger <werner@almesberger.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ieee802154/6lowpan.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index 7506d83300b0..3bc32fb2df8f 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -785,7 +785,6 @@ lowpan_alloc_new_frame(struct sk_buff *skb, u16 len, u16 tag)
 		goto skb_err;
 
 	frame->skb->priority = skb->priority;
-	frame->skb->dev = skb->dev;
 
 	/* reserve headroom for uncompressed ipv6 header */
 	skb_reserve(frame->skb, sizeof(struct ipv6hdr));
-- 
cgit 


From 8ef007fd1ddcbf2cfe44ec9fe9a2d9330b283797 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Mon, 28 Oct 2013 10:24:20 +0100
Subject: 6lowpan: remove unnecessary break

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Werner Almesberger <werner@almesberger.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ieee802154/6lowpan.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index 3bc32fb2df8f..fde90e63027d 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -440,7 +440,6 @@ lowpan_uncompress_udp_header(struct sk_buff *skb, struct udphdr *uh)
 		default:
 			pr_debug("ERROR: unknown UDP format\n");
 			goto err;
-			break;
 		}
 
 		pr_debug("uncompressed UDP ports: src = %d, dst = %d\n",
-- 
cgit 


From 79d9701559a9f3e9b2021fbd292f5e70ad75f686 Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Thu, 19 Sep 2013 16:47:37 -0500
Subject: of/irq: create interrupts-extended property

The standard interrupts property in device tree can only handle
interrupts coming from a single interrupt parent. If a device is wired
to multiple interrupt controllers, then it needs to be attached to a
node with an interrupt-map property to demux the interrupt specifiers
which is confusing. It would be a lot easier if there was a form of the
interrupts property that allows for a separate interrupt phandle for
each interrupt specifier.

This patch does exactly that by creating a new interrupts-extended
property which reuses the phandle+arguments pattern used by GPIOs and
other core bindings.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Kumar Gala <galak@codeaurora.org>
[grant.likely: removed versatile platform hunks into separate patch]
Cc: Rob Herring <rob.herring@calxeda.com>
---
 .../bindings/interrupt-controller/interrupts.txt   | 29 +++++++--
 arch/arm/boot/dts/testcases/tests-interrupts.dtsi  | 16 +++++
 drivers/of/irq.c                                   | 16 +++--
 drivers/of/selftest.c                              | 70 ++++++++++++++++++++++
 4 files changed, 120 insertions(+), 11 deletions(-)

diff --git a/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt b/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
index 72a06c0ab1db..1486497a24c1 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
+++ b/Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
@@ -4,16 +4,33 @@ Specifying interrupt information for devices
 1) Interrupt client nodes
 -------------------------
 
-Nodes that describe devices which generate interrupts must contain an
-"interrupts" property. This property must contain a list of interrupt
-specifiers, one per output interrupt. The format of the interrupt specifier is
-determined by the interrupt controller to which the interrupts are routed; see
-section 2 below for details.
+Nodes that describe devices which generate interrupts must contain an either an
+"interrupts" property or an "interrupts-extended" property. These properties
+contain a list of interrupt specifiers, one per output interrupt. The format of
+the interrupt specifier is determined by the interrupt controller to which the
+interrupts are routed; see section 2 below for details.
+
+  Example:
+	interrupt-parent = <&intc1>;
+	interrupts = <5 0>, <6 0>;
 
 The "interrupt-parent" property is used to specify the controller to which
 interrupts are routed and contains a single phandle referring to the interrupt
 controller node. This property is inherited, so it may be specified in an
-interrupt client node or in any of its parent nodes.
+interrupt client node or in any of its parent nodes. Interrupts listed in the
+"interrupts" property are always in reference to the node's interrupt parent.
+
+The "interrupts-extended" property is a special form for use when a node needs
+to reference multiple interrupt parents. Each entry in this property contains
+both the parent phandle and the interrupt specifier. "interrupts-extended"
+should only be used when a device has multiple interrupt parents.
+
+  Example:
+	interrupts-extended = <&intc1 5 1>, <&intc2 1 0>;
+
+A device node may contain either "interrupts" or "interrupts-extended", but not
+both. If both properties are present, then the operating system should log an
+error and use only the data in "interrupts".
 
 2) Interrupt controller nodes
 -----------------------------
diff --git a/arch/arm/boot/dts/testcases/tests-interrupts.dtsi b/arch/arm/boot/dts/testcases/tests-interrupts.dtsi
index 6ecda716e9d4..560d6bf680b6 100644
--- a/arch/arm/boot/dts/testcases/tests-interrupts.dtsi
+++ b/arch/arm/boot/dts/testcases/tests-interrupts.dtsi
@@ -27,6 +27,12 @@
 						<4 &test_intc2 15 16>;
 			};
 
+			test_intmap1: intmap1 {
+				#interrupt-cells = <2>;
+				#address-cells = <0>;
+				interrupt-map = <1 2 &test_intc0 15>;
+			};
+
 			interrupts0 {
 				interrupt-parent = <&test_intc0>;
 				interrupts = <1>, <2>, <3>, <4>;
@@ -36,6 +42,16 @@
 				interrupt-parent = <&test_intmap0>;
 				interrupts = <1>, <2>, <3>, <4>;
 			};
+
+			interrupts-extended0 {
+				interrupts-extended = <&test_intc0 1>,
+						      <&test_intc1 2 3 4>,
+						      <&test_intc2 5 6>,
+						      <&test_intmap0 1>,
+						      <&test_intmap0 2>,
+						      <&test_intmap0 3>,
+						      <&test_intmap1 1 2>;
+			};
 		};
 	};
 };
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 7c4ff122785f..8cc62b4a7988 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -292,17 +292,23 @@ int of_irq_parse_one(struct device_node *device, int index, struct of_phandle_ar
 	if (of_irq_workarounds & OF_IMAP_OLDWORLD_MAC)
 		return of_irq_parse_oldworld(device, index, out_irq);
 
+	/* Get the reg property (if any) */
+	addr = of_get_property(device, "reg", NULL);
+
 	/* Get the interrupts property */
 	intspec = of_get_property(device, "interrupts", &intlen);
-	if (intspec == NULL)
-		return -EINVAL;
+	if (intspec == NULL) {
+		/* Try the new-style interrupts-extended */
+		res = of_parse_phandle_with_args(device, "interrupts-extended",
+						"#interrupt-cells", index, out_irq);
+		if (res)
+			return -EINVAL;
+		return of_irq_parse_raw(addr, out_irq);
+	}
 	intlen /= sizeof(*intspec);
 
 	pr_debug(" intspec=%d intlen=%d\n", be32_to_cpup(intspec), intlen);
 
-	/* Get the reg property (if any) */
-	addr = of_get_property(device, "reg", NULL);
-
 	/* Look for the interrupt parent. */
 	p = of_irq_find_parent(device);
 	if (p == NULL)
diff --git a/drivers/of/selftest.c b/drivers/of/selftest.c
index 9c80f0b7556b..e21012bde639 100644
--- a/drivers/of/selftest.c
+++ b/drivers/of/selftest.c
@@ -231,6 +231,75 @@ static void __init of_selftest_parse_interrupts(void)
 	of_node_put(np);
 }
 
+static void __init of_selftest_parse_interrupts_extended(void)
+{
+	struct device_node *np;
+	struct of_phandle_args args;
+	int i, rc;
+
+	np = of_find_node_by_path("/testcase-data/interrupts/interrupts-extended0");
+	if (!np) {
+		pr_err("missing testcase data\n");
+		return;
+	}
+
+	for (i = 0; i < 7; i++) {
+		bool passed = true;
+		rc = of_irq_parse_one(np, i, &args);
+
+		/* Test the values from tests-phandle.dtsi */
+		switch (i) {
+		case 0:
+			passed &= !rc;
+			passed &= (args.args_count == 1);
+			passed &= (args.args[0] == 1);
+			break;
+		case 1:
+			passed &= !rc;
+			passed &= (args.args_count == 3);
+			passed &= (args.args[0] == 2);
+			passed &= (args.args[1] == 3);
+			passed &= (args.args[2] == 4);
+			break;
+		case 2:
+			passed &= !rc;
+			passed &= (args.args_count == 2);
+			passed &= (args.args[0] == 5);
+			passed &= (args.args[1] == 6);
+			break;
+		case 3:
+			passed &= !rc;
+			passed &= (args.args_count == 1);
+			passed &= (args.args[0] == 9);
+			break;
+		case 4:
+			passed &= !rc;
+			passed &= (args.args_count == 3);
+			passed &= (args.args[0] == 10);
+			passed &= (args.args[1] == 11);
+			passed &= (args.args[2] == 12);
+			break;
+		case 5:
+			passed &= !rc;
+			passed &= (args.args_count == 2);
+			passed &= (args.args[0] == 13);
+			passed &= (args.args[1] == 14);
+			break;
+		case 6:
+			passed &= !rc;
+			passed &= (args.args_count == 1);
+			passed &= (args.args[0] == 15);
+			break;
+		default:
+			passed = false;
+		}
+
+		selftest(passed, "index %i - data error on node %s rc=%i\n",
+			 i, args.np->full_name, rc);
+	}
+	of_node_put(np);
+}
+
 static int __init of_selftest(void)
 {
 	struct device_node *np;
@@ -246,6 +315,7 @@ static int __init of_selftest(void)
 	of_selftest_parse_phandle_with_args();
 	of_selftest_property_match_string();
 	of_selftest_parse_interrupts();
+	of_selftest_parse_interrupts_extended();
 	pr_info("end of selftest - %i passed, %i failed\n",
 		selftest_results.passed, selftest_results.failed);
 	return 0;
-- 
cgit 


From 0976c946a610d06e907335b7a3afa6db046f8e1b Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Mon, 28 Oct 2013 16:50:11 -0700
Subject: arm/versatile: Fix versatile irq specifications.

Two of the versatile irq definitions are incorrect, mostly because two
devices have connections to more than one interrupt controller. Fix them
by using the new interrupts-extended property to fan out without using
an awful interrupt-map nexus node.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
---
 arch/arm/boot/dts/versatile-ab.dts | 2 +-
 arch/arm/boot/dts/versatile-pb.dts | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/versatile-ab.dts b/arch/arm/boot/dts/versatile-ab.dts
index dde75ae8b4b1..e01e5a081def 100644
--- a/arch/arm/boot/dts/versatile-ab.dts
+++ b/arch/arm/boot/dts/versatile-ab.dts
@@ -185,7 +185,7 @@
 			mmc@5000 {
 				compatible = "arm,primecell";
 				reg = < 0x5000 0x1000>;
-				interrupts = <22 34>;
+				interrupts-extended = <&vic 22 &sic 2>;
 			};
 			kmi@6000 {
 				compatible = "arm,pl050", "arm,primecell";
diff --git a/arch/arm/boot/dts/versatile-pb.dts b/arch/arm/boot/dts/versatile-pb.dts
index 7e8175269064..f43907c40c93 100644
--- a/arch/arm/boot/dts/versatile-pb.dts
+++ b/arch/arm/boot/dts/versatile-pb.dts
@@ -41,7 +41,7 @@
 			mmc@b000 {
 				compatible = "arm,primecell";
 				reg = <0xb000 0x1000>;
-				interrupts = <23 34>;
+				interrupts-extended = <&vic 23 &sic 2>;
 			};
 		};
 	};
-- 
cgit 


From 5d9efa7ee99eed58388f186c13cf2e2a87e9ceb4 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Mon, 28 Oct 2013 20:07:50 -0400
Subject: ipv6: Remove privacy config option.

The code for privacy extentions is very mature, and making it
configurable only gives marginal memory/code savings in exchange
for obfuscation and hard to read code via CPP ifdef'ery.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/ipv6.h   |  2 --
 include/net/if_inet6.h |  5 +----
 net/ipv6/Kconfig       | 18 ------------------
 net/ipv6/addrconf.c    | 41 +++--------------------------------------
 4 files changed, 4 insertions(+), 62 deletions(-)

diff --git a/include/linux/ipv6.h b/include/linux/ipv6.h
index a80a63cfb70c..5d89d1b808a6 100644
--- a/include/linux/ipv6.h
+++ b/include/linux/ipv6.h
@@ -21,13 +21,11 @@ struct ipv6_devconf {
 	__s32		force_mld_version;
 	__s32		mldv1_unsolicited_report_interval;
 	__s32		mldv2_unsolicited_report_interval;
-#ifdef CONFIG_IPV6_PRIVACY
 	__s32		use_tempaddr;
 	__s32		temp_valid_lft;
 	__s32		temp_prefered_lft;
 	__s32		regen_max_retry;
 	__s32		max_desync_factor;
-#endif
 	__s32		max_addresses;
 	__s32		accept_ra_defrtr;
 	__s32		accept_ra_pinfo;
diff --git a/include/net/if_inet6.h b/include/net/if_inet6.h
index 02ef7727bb55..76d54270f2e2 100644
--- a/include/net/if_inet6.h
+++ b/include/net/if_inet6.h
@@ -66,11 +66,10 @@ struct inet6_ifaddr {
 	struct hlist_node	addr_lst;
 	struct list_head	if_list;
 
-#ifdef CONFIG_IPV6_PRIVACY
 	struct list_head	tmp_list;
 	struct inet6_ifaddr	*ifpub;
 	int			regen_count;
-#endif
+
 	bool			tokenized;
 
 	struct rcu_head		rcu;
@@ -192,11 +191,9 @@ struct inet6_dev {
 	__u32			if_flags;
 	int			dead;
 
-#ifdef CONFIG_IPV6_PRIVACY
 	u8			rndid[8];
 	struct timer_list	regen_timer;
 	struct list_head	tempaddr_list;
-#endif
 
 	struct in6_addr		token;
 
diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig
index e1a8d903e366..d92e5586783e 100644
--- a/net/ipv6/Kconfig
+++ b/net/ipv6/Kconfig
@@ -21,24 +21,6 @@ menuconfig IPV6
 
 if IPV6
 
-config IPV6_PRIVACY
-	bool "IPv6: Privacy Extensions (RFC 3041) support"
-	---help---
-	  Privacy Extensions for Stateless Address Autoconfiguration in IPv6
-	  support.  With this option, additional periodically-altered
-	  pseudo-random global-scope unicast address(es) will be assigned to
-	  your interface(s).
-	
-	  We use our standard pseudo-random algorithm to generate the
-          randomized interface identifier, instead of one described in RFC 3041.
-
-	  By default the kernel does not generate temporary addresses.
-	  To use temporary addresses, do
-	
-	        echo 2 >/proc/sys/net/ipv6/conf/all/use_tempaddr 
-
-	  See <file:Documentation/networking/ip-sysctl.txt> for details.
-
 config IPV6_ROUTER_PREF
 	bool "IPv6: Router Preference (RFC 4191) support"
 	---help---
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index cd3fb301da38..542d09561ed6 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -83,11 +83,7 @@
 #include <linux/if_tunnel.h>
 #include <linux/rtnetlink.h>
 #include <linux/netconf.h>
-
-#ifdef CONFIG_IPV6_PRIVACY
 #include <linux/random.h>
-#endif
-
 #include <linux/uaccess.h>
 #include <asm/unaligned.h>
 
@@ -124,11 +120,9 @@ static inline void addrconf_sysctl_unregister(struct inet6_dev *idev)
 }
 #endif
 
-#ifdef CONFIG_IPV6_PRIVACY
 static void __ipv6_regen_rndid(struct inet6_dev *idev);
 static void __ipv6_try_regen_rndid(struct inet6_dev *idev, struct in6_addr *tmpaddr);
 static void ipv6_regen_rndid(unsigned long data);
-#endif
 
 static int ipv6_generate_eui64(u8 *eui, struct net_device *dev);
 static int ipv6_count_addresses(struct inet6_dev *idev);
@@ -183,13 +177,11 @@ static struct ipv6_devconf ipv6_devconf __read_mostly = {
 	.rtr_solicits		= MAX_RTR_SOLICITATIONS,
 	.rtr_solicit_interval	= RTR_SOLICITATION_INTERVAL,
 	.rtr_solicit_delay	= MAX_RTR_SOLICITATION_DELAY,
-#ifdef CONFIG_IPV6_PRIVACY
 	.use_tempaddr 		= 0,
 	.temp_valid_lft		= TEMP_VALID_LIFETIME,
 	.temp_prefered_lft	= TEMP_PREFERRED_LIFETIME,
 	.regen_max_retry	= REGEN_MAX_RETRY,
 	.max_desync_factor	= MAX_DESYNC_FACTOR,
-#endif
 	.max_addresses		= IPV6_MAX_ADDRESSES,
 	.accept_ra_defrtr	= 1,
 	.accept_ra_pinfo	= 1,
@@ -221,13 +213,11 @@ static struct ipv6_devconf ipv6_devconf_dflt __read_mostly = {
 	.rtr_solicits		= MAX_RTR_SOLICITATIONS,
 	.rtr_solicit_interval	= RTR_SOLICITATION_INTERVAL,
 	.rtr_solicit_delay	= MAX_RTR_SOLICITATION_DELAY,
-#ifdef CONFIG_IPV6_PRIVACY
 	.use_tempaddr		= 0,
 	.temp_valid_lft		= TEMP_VALID_LIFETIME,
 	.temp_prefered_lft	= TEMP_PREFERRED_LIFETIME,
 	.regen_max_retry	= REGEN_MAX_RETRY,
 	.max_desync_factor	= MAX_DESYNC_FACTOR,
-#endif
 	.max_addresses		= IPV6_MAX_ADDRESSES,
 	.accept_ra_defrtr	= 1,
 	.accept_ra_pinfo	= 1,
@@ -371,7 +361,6 @@ static struct inet6_dev *ipv6_add_dev(struct net_device *dev)
 	}
 #endif
 
-#ifdef CONFIG_IPV6_PRIVACY
 	INIT_LIST_HEAD(&ndev->tempaddr_list);
 	setup_timer(&ndev->regen_timer, ipv6_regen_rndid, (unsigned long)ndev);
 	if ((dev->flags&IFF_LOOPBACK) ||
@@ -384,7 +373,7 @@ static struct inet6_dev *ipv6_add_dev(struct net_device *dev)
 		in6_dev_hold(ndev);
 		ipv6_regen_rndid((unsigned long) ndev);
 	}
-#endif
+
 	ndev->token = in6addr_any;
 
 	if (netif_running(dev) && addrconf_qdisc_ok(dev))
@@ -865,12 +854,10 @@ ipv6_add_addr(struct inet6_dev *idev, const struct in6_addr *addr,
 	/* Add to inet6_dev unicast addr list. */
 	ipv6_link_dev_addr(idev, ifa);
 
-#ifdef CONFIG_IPV6_PRIVACY
 	if (ifa->flags&IFA_F_TEMPORARY) {
 		list_add(&ifa->tmp_list, &idev->tempaddr_list);
 		in6_ifa_hold(ifa);
 	}
-#endif
 
 	in6_ifa_hold(ifa);
 	write_unlock(&idev->lock);
@@ -913,7 +900,7 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp)
 	spin_unlock_bh(&addrconf_hash_lock);
 
 	write_lock_bh(&idev->lock);
-#ifdef CONFIG_IPV6_PRIVACY
+
 	if (ifp->flags&IFA_F_TEMPORARY) {
 		list_del(&ifp->tmp_list);
 		if (ifp->ifpub) {
@@ -922,7 +909,6 @@ static void ipv6_del_addr(struct inet6_ifaddr *ifp)
 		}
 		__in6_ifa_put(ifp);
 	}
-#endif
 
 	list_for_each_entry_safe(ifa, ifn, &idev->addr_list, if_list) {
 		if (ifa == ifp) {
@@ -1013,7 +999,6 @@ out:
 	in6_ifa_put(ifp);
 }
 
-#ifdef CONFIG_IPV6_PRIVACY
 static int ipv6_create_tempaddr(struct inet6_ifaddr *ifp, struct inet6_ifaddr *ift)
 {
 	struct inet6_dev *idev = ifp->idev;
@@ -1116,7 +1101,6 @@ retry:
 out:
 	return ret;
 }
-#endif
 
 /*
  *	Choose an appropriate source address (RFC3484)
@@ -1131,9 +1115,7 @@ enum {
 #endif
 	IPV6_SADDR_RULE_OIF,
 	IPV6_SADDR_RULE_LABEL,
-#ifdef CONFIG_IPV6_PRIVACY
 	IPV6_SADDR_RULE_PRIVACY,
-#endif
 	IPV6_SADDR_RULE_ORCHID,
 	IPV6_SADDR_RULE_PREFIX,
 	IPV6_SADDR_RULE_MAX
@@ -1247,7 +1229,6 @@ static int ipv6_get_saddr_eval(struct net *net,
 				      &score->ifa->addr, score->addr_type,
 				      score->ifa->idev->dev->ifindex) == dst->label;
 		break;
-#ifdef CONFIG_IPV6_PRIVACY
 	case IPV6_SADDR_RULE_PRIVACY:
 	    {
 		/* Rule 7: Prefer public address
@@ -1259,7 +1240,6 @@ static int ipv6_get_saddr_eval(struct net *net,
 		ret = (!(score->ifa->flags & IFA_F_TEMPORARY)) ^ preftmp;
 		break;
 	    }
-#endif
 	case IPV6_SADDR_RULE_ORCHID:
 		/* Rule 8-: Prefer ORCHID vs ORCHID or
 		 *	    non-ORCHID vs non-ORCHID
@@ -1588,7 +1568,6 @@ static void addrconf_dad_stop(struct inet6_ifaddr *ifp, int dad_failed)
 		if (dad_failed)
 			ipv6_ifa_notify(0, ifp);
 		in6_ifa_put(ifp);
-#ifdef CONFIG_IPV6_PRIVACY
 	} else if (ifp->flags&IFA_F_TEMPORARY) {
 		struct inet6_ifaddr *ifpub;
 		spin_lock_bh(&ifp->lock);
@@ -1602,7 +1581,6 @@ static void addrconf_dad_stop(struct inet6_ifaddr *ifp, int dad_failed)
 			spin_unlock_bh(&ifp->lock);
 		}
 		ipv6_del_addr(ifp);
-#endif
 	} else
 		ipv6_del_addr(ifp);
 }
@@ -1851,7 +1829,6 @@ static int ipv6_inherit_eui64(u8 *eui, struct inet6_dev *idev)
 	return err;
 }
 
-#ifdef CONFIG_IPV6_PRIVACY
 /* (re)generation of randomized interface identifier (RFC 3041 3.2, 3.5) */
 static void __ipv6_regen_rndid(struct inet6_dev *idev)
 {
@@ -1919,7 +1896,6 @@ static void  __ipv6_try_regen_rndid(struct inet6_dev *idev, struct in6_addr *tmp
 	if (tmpaddr && memcmp(idev->rndid, &tmpaddr->s6_addr[8], 8) == 0)
 		__ipv6_regen_rndid(idev);
 }
-#endif
 
 /*
  *	Add prefix route.
@@ -2207,9 +2183,7 @@ ok:
 		if (ifp) {
 			int flags;
 			unsigned long now;
-#ifdef CONFIG_IPV6_PRIVACY
 			struct inet6_ifaddr *ift;
-#endif
 			u32 stored_lft;
 
 			/* update lifetime (RFC2462 5.5.3 e) */
@@ -2250,7 +2224,6 @@ ok:
 			} else
 				spin_unlock(&ifp->lock);
 
-#ifdef CONFIG_IPV6_PRIVACY
 			read_lock_bh(&in6_dev->lock);
 			/* update all temporary addresses in the list */
 			list_for_each_entry(ift, &in6_dev->tempaddr_list,
@@ -2315,7 +2288,7 @@ ok:
 			} else {
 				read_unlock_bh(&in6_dev->lock);
 			}
-#endif
+
 			in6_ifa_put(ifp);
 			addrconf_verify(0);
 		}
@@ -2995,7 +2968,6 @@ static int addrconf_ifdown(struct net_device *dev, int how)
 	if (!how)
 		idev->if_flags &= ~(IF_RS_SENT|IF_RA_RCVD|IF_READY);
 
-#ifdef CONFIG_IPV6_PRIVACY
 	if (how && del_timer(&idev->regen_timer))
 		in6_dev_put(idev);
 
@@ -3015,7 +2987,6 @@ static int addrconf_ifdown(struct net_device *dev, int how)
 		in6_ifa_put(ifa);
 		write_lock_bh(&idev->lock);
 	}
-#endif
 
 	while (!list_empty(&idev->addr_list)) {
 		ifa = list_first_entry(&idev->addr_list,
@@ -3528,7 +3499,6 @@ restart:
 					in6_ifa_put(ifp);
 					goto restart;
 				}
-#ifdef CONFIG_IPV6_PRIVACY
 			} else if ((ifp->flags&IFA_F_TEMPORARY) &&
 				   !(ifp->flags&IFA_F_TENTATIVE)) {
 				unsigned long regen_advance = ifp->idev->cnf.regen_max_retry *
@@ -3556,7 +3526,6 @@ restart:
 				} else if (time_before(ifp->tstamp + ifp->prefered_lft * HZ - regen_advance * HZ, next))
 					next = ifp->tstamp + ifp->prefered_lft * HZ - regen_advance * HZ;
 				spin_unlock(&ifp->lock);
-#endif
 			} else {
 				/* ifp->prefered_lft <= ifp->valid_lft */
 				if (time_before(ifp->tstamp + ifp->prefered_lft * HZ, next))
@@ -4128,13 +4097,11 @@ static inline void ipv6_store_devconf(struct ipv6_devconf *cnf,
 		jiffies_to_msecs(cnf->mldv1_unsolicited_report_interval);
 	array[DEVCONF_MLDV2_UNSOLICITED_REPORT_INTERVAL] =
 		jiffies_to_msecs(cnf->mldv2_unsolicited_report_interval);
-#ifdef CONFIG_IPV6_PRIVACY
 	array[DEVCONF_USE_TEMPADDR] = cnf->use_tempaddr;
 	array[DEVCONF_TEMP_VALID_LFT] = cnf->temp_valid_lft;
 	array[DEVCONF_TEMP_PREFERED_LFT] = cnf->temp_prefered_lft;
 	array[DEVCONF_REGEN_MAX_RETRY] = cnf->regen_max_retry;
 	array[DEVCONF_MAX_DESYNC_FACTOR] = cnf->max_desync_factor;
-#endif
 	array[DEVCONF_MAX_ADDRESSES] = cnf->max_addresses;
 	array[DEVCONF_ACCEPT_RA_DEFRTR] = cnf->accept_ra_defrtr;
 	array[DEVCONF_ACCEPT_RA_PINFO] = cnf->accept_ra_pinfo;
@@ -4828,7 +4795,6 @@ static struct addrconf_sysctl_table
 			.mode		= 0644,
 			.proc_handler	= proc_dointvec_ms_jiffies,
 		},
-#ifdef CONFIG_IPV6_PRIVACY
 		{
 			.procname	= "use_tempaddr",
 			.data		= &ipv6_devconf.use_tempaddr,
@@ -4864,7 +4830,6 @@ static struct addrconf_sysctl_table
 			.mode		= 0644,
 			.proc_handler	= proc_dointvec,
 		},
-#endif
 		{
 			.procname	= "max_addresses",
 			.data		= &ipv6_devconf.max_addresses,
-- 
cgit 


From 15177608c703e7b4aa29aa7c93b31001effe504c Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Tue, 29 Oct 2013 00:37:37 +0000
Subject: swiotlb-xen: fix error code returned by xen_swiotlb_map_sg_attrs

map_sg returns the number of elements mapped, not a dma_addr_t.
In case of error return 0, not DMA_ERROR_CODE.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
---
 drivers/xen/swiotlb-xen.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 100962dcc7bb..8af68629260b 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -548,7 +548,7 @@ xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
 				xen_swiotlb_unmap_sg_attrs(hwdev, sgl, i, dir,
 							   attrs);
 				sg_dma_len(sgl) = 0;
-				return DMA_ERROR_CODE;
+				return 0;
 			}
 			sg->dma_address = xen_phys_to_bus(map);
 		} else {
-- 
cgit 


From 46f9c2b925ac12e5ad8b8b7c90c71dacc9d5db37 Mon Sep 17 00:00:00 2001
From: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Date: Tue, 29 Oct 2013 09:38:50 +1030
Subject: virtio_ring: change host notification API

Currently a host kick error is silently ignored and not reflected in
the virtqueue of a particular virtio device.

Changing the notify API for guest->host notification seems to be one
prerequisite in order to be able to handle such errors in the context
where the kick is triggered.

This patch changes the notify API. The notify function must return a
bool return value. It returns false if the host notification failed.

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 drivers/lguest/lguest_device.c         |  3 ++-
 drivers/remoteproc/remoteproc_virtio.c |  3 ++-
 drivers/s390/kvm/kvm_virtio.c          |  8 ++++++--
 drivers/s390/kvm/virtio_ccw.c          |  5 ++++-
 drivers/virtio/virtio_mmio.c           |  3 ++-
 drivers/virtio/virtio_pci.c            |  3 ++-
 drivers/virtio/virtio_ring.c           |  4 ++--
 include/linux/virtio_ring.h            |  2 +-
 tools/virtio/virtio_test.c             |  3 ++-
 tools/virtio/vringh_test.c             | 13 +++++++++----
 10 files changed, 32 insertions(+), 15 deletions(-)

diff --git a/drivers/lguest/lguest_device.c b/drivers/lguest/lguest_device.c
index b3256ff0d426..d0a1d8a45c81 100644
--- a/drivers/lguest/lguest_device.c
+++ b/drivers/lguest/lguest_device.c
@@ -229,7 +229,7 @@ struct lguest_vq_info {
  * make a hypercall.  We hand the physical address of the virtqueue so the Host
  * knows which virtqueue we're talking about.
  */
-static void lg_notify(struct virtqueue *vq)
+static bool lg_notify(struct virtqueue *vq)
 {
 	/*
 	 * We store our virtqueue information in the "priv" pointer of the
@@ -238,6 +238,7 @@ static void lg_notify(struct virtqueue *vq)
 	struct lguest_vq_info *lvq = vq->priv;
 
 	hcall(LHCALL_NOTIFY, lvq->config.pfn << PAGE_SHIFT, 0, 0, 0);
+	return true;
 }
 
 /* An extern declaration inside a C file is bad form.  Don't do it. */
diff --git a/drivers/remoteproc/remoteproc_virtio.c b/drivers/remoteproc/remoteproc_virtio.c
index b09c75c21b60..a34b50690b4e 100644
--- a/drivers/remoteproc/remoteproc_virtio.c
+++ b/drivers/remoteproc/remoteproc_virtio.c
@@ -30,7 +30,7 @@
 #include "remoteproc_internal.h"
 
 /* kick the remote processor, and let it know which virtqueue to poke at */
-static void rproc_virtio_notify(struct virtqueue *vq)
+static bool rproc_virtio_notify(struct virtqueue *vq)
 {
 	struct rproc_vring *rvring = vq->priv;
 	struct rproc *rproc = rvring->rvdev->rproc;
@@ -39,6 +39,7 @@ static void rproc_virtio_notify(struct virtqueue *vq)
 	dev_dbg(&rproc->dev, "kicking vq index: %d\n", notifyid);
 
 	rproc->ops->kick(rproc, notifyid);
+	return true;
 }
 
 /**
diff --git a/drivers/s390/kvm/kvm_virtio.c b/drivers/s390/kvm/kvm_virtio.c
index af2166fa5159..1abd0db29915 100644
--- a/drivers/s390/kvm/kvm_virtio.c
+++ b/drivers/s390/kvm/kvm_virtio.c
@@ -166,11 +166,15 @@ static void kvm_reset(struct virtio_device *vdev)
  * make a hypercall.  We hand the address  of the virtqueue so the Host
  * knows which virtqueue we're talking about.
  */
-static void kvm_notify(struct virtqueue *vq)
+static bool kvm_notify(struct virtqueue *vq)
 {
+	long rc;
 	struct kvm_vqconfig *config = vq->priv;
 
-	kvm_hypercall1(KVM_S390_VIRTIO_NOTIFY, config->address);
+	rc = kvm_hypercall1(KVM_S390_VIRTIO_NOTIFY, config->address);
+	if (rc < 0)
+		return false;
+	return true;
 }
 
 /*
diff --git a/drivers/s390/kvm/virtio_ccw.c b/drivers/s390/kvm/virtio_ccw.c
index 779dc5136291..d6297176ab85 100644
--- a/drivers/s390/kvm/virtio_ccw.c
+++ b/drivers/s390/kvm/virtio_ccw.c
@@ -162,7 +162,7 @@ static inline long do_kvm_notify(struct subchannel_id schid,
 	return __rc;
 }
 
-static void virtio_ccw_kvm_notify(struct virtqueue *vq)
+static bool virtio_ccw_kvm_notify(struct virtqueue *vq)
 {
 	struct virtio_ccw_vq_info *info = vq->priv;
 	struct virtio_ccw_device *vcdev;
@@ -171,6 +171,9 @@ static void virtio_ccw_kvm_notify(struct virtqueue *vq)
 	vcdev = to_vc_device(info->vq->vdev);
 	ccw_device_get_schid(vcdev->cdev, &schid);
 	info->cookie = do_kvm_notify(schid, vq->index, info->cookie);
+	if (info->cookie < 0)
+		return false;
+	return true;
 }
 
 static int virtio_ccw_read_vq_conf(struct virtio_ccw_device *vcdev,
diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c
index 1ba0d6831015..e9fdeb861992 100644
--- a/drivers/virtio/virtio_mmio.c
+++ b/drivers/virtio/virtio_mmio.c
@@ -219,13 +219,14 @@ static void vm_reset(struct virtio_device *vdev)
 /* Transport interface */
 
 /* the notify function used when creating a virt queue */
-static void vm_notify(struct virtqueue *vq)
+static bool vm_notify(struct virtqueue *vq)
 {
 	struct virtio_mmio_device *vm_dev = to_virtio_mmio_device(vq->vdev);
 
 	/* We write the queue's selector into the notification register to
 	 * signal the other end */
 	writel(vq->index, vm_dev->base + VIRTIO_MMIO_QUEUE_NOTIFY);
+	return true;
 }
 
 /* Notify all virtqueues on an interrupt. */
diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c
index 98917fc872a4..a37c69941d30 100644
--- a/drivers/virtio/virtio_pci.c
+++ b/drivers/virtio/virtio_pci.c
@@ -197,13 +197,14 @@ static void vp_reset(struct virtio_device *vdev)
 }
 
 /* the notify function used when creating a virt queue */
-static void vp_notify(struct virtqueue *vq)
+static bool vp_notify(struct virtqueue *vq)
 {
 	struct virtio_pci_device *vp_dev = to_vp_device(vq->vdev);
 
 	/* we write the queue's selector into the notification register to
 	 * signal the other end */
 	iowrite16(vq->index, vp_dev->ioaddr + VIRTIO_PCI_QUEUE_NOTIFY);
+	return true;
 }
 
 /* Handle a configuration change: Tell driver if it wants to know. */
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 6547d46171b3..97dd51619b55 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -81,7 +81,7 @@ struct vring_virtqueue
 	u16 last_used_idx;
 
 	/* How to notify other side. FIXME: commonalize hcalls! */
-	void (*notify)(struct virtqueue *vq);
+	bool (*notify)(struct virtqueue *vq);
 
 #ifdef DEBUG
 	/* They're supposed to lock for us. */
@@ -744,7 +744,7 @@ struct virtqueue *vring_new_virtqueue(unsigned int index,
 				      struct virtio_device *vdev,
 				      bool weak_barriers,
 				      void *pages,
-				      void (*notify)(struct virtqueue *),
+				      bool (*notify)(struct virtqueue *),
 				      void (*callback)(struct virtqueue *),
 				      const char *name)
 {
diff --git a/include/linux/virtio_ring.h b/include/linux/virtio_ring.h
index b300787af8e0..67e06fe18c03 100644
--- a/include/linux/virtio_ring.h
+++ b/include/linux/virtio_ring.h
@@ -71,7 +71,7 @@ struct virtqueue *vring_new_virtqueue(unsigned int index,
 				      struct virtio_device *vdev,
 				      bool weak_barriers,
 				      void *pages,
-				      void (*notify)(struct virtqueue *vq),
+				      bool (*notify)(struct virtqueue *vq),
 				      void (*callback)(struct virtqueue *vq),
 				      const char *name);
 void vring_del_virtqueue(struct virtqueue *vq);
diff --git a/tools/virtio/virtio_test.c b/tools/virtio/virtio_test.c
index da7a19558281..059cb723f6a7 100644
--- a/tools/virtio/virtio_test.c
+++ b/tools/virtio/virtio_test.c
@@ -41,13 +41,14 @@ struct vdev_info {
 	struct vhost_memory *mem;
 };
 
-void vq_notify(struct virtqueue *vq)
+bool vq_notify(struct virtqueue *vq)
 {
 	struct vq_info *info = vq->priv;
 	unsigned long long v = 1;
 	int r;
 	r = write(info->kick, &v, sizeof v);
 	assert(r == sizeof v);
+	return true;
 }
 
 void vq_callback(struct virtqueue *vq)
diff --git a/tools/virtio/vringh_test.c b/tools/virtio/vringh_test.c
index d053ea40c001..14a4f4cab5b9 100644
--- a/tools/virtio/vringh_test.c
+++ b/tools/virtio/vringh_test.c
@@ -22,7 +22,7 @@ static u64 user_addr_offset;
 #define RINGSIZE 256
 #define ALIGN 4096
 
-static void never_notify_host(struct virtqueue *vq)
+static bool never_notify_host(struct virtqueue *vq)
 {
 	abort();
 }
@@ -65,17 +65,22 @@ struct guest_virtio_device {
 	unsigned long notifies;
 };
 
-static void parallel_notify_host(struct virtqueue *vq)
+static bool parallel_notify_host(struct virtqueue *vq)
 {
+	int rc;
 	struct guest_virtio_device *gvdev;
 
 	gvdev = container_of(vq->vdev, struct guest_virtio_device, vdev);
-	write(gvdev->to_host_fd, "", 1);
+	rc = write(gvdev->to_host_fd, "", 1);
+	if (rc < 0)
+		return false;
 	gvdev->notifies++;
+	return true;
 }
 
-static void no_notify_host(struct virtqueue *vq)
+static bool no_notify_host(struct virtqueue *vq)
 {
+	return true;
 }
 
 #define NUM_XFERS (10000000)
-- 
cgit 


From 5b1bf7cb673ade0ab5c75f200dce911d9fb91c21 Mon Sep 17 00:00:00 2001
From: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Date: Tue, 29 Oct 2013 09:39:48 +1030
Subject: virtio_ring: let virtqueue_{kick()/notify()} return a bool

virtqueue_{kick()/notify()} should exploit the new host notification API.
If the notify call returned with a negative value the host kick failed
(e.g. a kick triggered after a device was hot-unplugged). In this case
the virtqueue is set to 'broken' and false is returned, otherwise true.

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 drivers/virtio/virtio_ring.c | 20 ++++++++++++++++----
 include/linux/virtio.h       |  4 ++--
 2 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 97dd51619b55..b47142723119 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -430,13 +430,22 @@ EXPORT_SYMBOL_GPL(virtqueue_kick_prepare);
  * @vq: the struct virtqueue
  *
  * This does not need to be serialized.
+ *
+ * Returns false if host notify failed or queue is broken, otherwise true.
  */
-void virtqueue_notify(struct virtqueue *_vq)
+bool virtqueue_notify(struct virtqueue *_vq)
 {
 	struct vring_virtqueue *vq = to_vvq(_vq);
 
+	if (unlikely(vq->broken))
+		return false;
+
 	/* Prod other side to tell it about changes. */
-	vq->notify(_vq);
+	if (vq->notify(_vq) < 0) {
+		vq->broken = true;
+		return false;
+	}
+	return true;
 }
 EXPORT_SYMBOL_GPL(virtqueue_notify);
 
@@ -449,11 +458,14 @@ EXPORT_SYMBOL_GPL(virtqueue_notify);
  *
  * Caller must ensure we don't call this with other virtqueue
  * operations at the same time (except where noted).
+ *
+ * Returns false if kick failed, otherwise true.
  */
-void virtqueue_kick(struct virtqueue *vq)
+bool virtqueue_kick(struct virtqueue *vq)
 {
 	if (virtqueue_kick_prepare(vq))
-		virtqueue_notify(vq);
+		return virtqueue_notify(vq);
+	return true;
 }
 EXPORT_SYMBOL_GPL(virtqueue_kick);
 
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 36d36cc89329..9b4de15fcb2f 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -51,11 +51,11 @@ int virtqueue_add_sgs(struct virtqueue *vq,
 		      void *data,
 		      gfp_t gfp);
 
-void virtqueue_kick(struct virtqueue *vq);
+bool virtqueue_kick(struct virtqueue *vq);
 
 bool virtqueue_kick_prepare(struct virtqueue *vq);
 
-void virtqueue_notify(struct virtqueue *vq);
+bool virtqueue_notify(struct virtqueue *vq);
 
 void *virtqueue_get_buf(struct virtqueue *vq, unsigned int *len);
 
-- 
cgit 


From 67975901183799af8e93ec60e322f9e2a1940b9b Mon Sep 17 00:00:00 2001
From: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Date: Tue, 29 Oct 2013 09:40:02 +1030
Subject: virtio_net: verify if virtqueue_kick() succeeded

Verify if a host kick succeeded by checking return value of virtqueue_kick().

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 drivers/net/virtio_net.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index ee022714eadb..ff208d2787d3 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -545,7 +545,8 @@ static bool try_fill_recv(struct receive_queue *rq, gfp_t gfp)
 	} while (rq->vq->num_free);
 	if (unlikely(rq->num > rq->max))
 		rq->max = rq->num;
-	virtqueue_kick(rq->vq);
+	if (unlikely(!virtqueue_kick(rq->vq)))
+		return false;
 	return !oom;
 }
 
@@ -751,7 +752,7 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev)
 	err = xmit_skb(sq, skb);
 
 	/* This should not happen! */
-	if (unlikely(err)) {
+	if (unlikely(err) || unlikely(!virtqueue_kick(sq->vq))) {
 		dev->stats.tx_fifo_errors++;
 		if (net_ratelimit())
 			dev_warn(&dev->dev,
@@ -760,7 +761,6 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev)
 		kfree_skb(skb);
 		return NETDEV_TX_OK;
 	}
-	virtqueue_kick(sq->vq);
 
 	/* Don't wait up for transmitted skbs to be freed. */
 	skb_orphan(skb);
@@ -819,7 +819,8 @@ static bool virtnet_send_command(struct virtnet_info *vi, u8 class, u8 cmd,
 	BUG_ON(virtqueue_add_sgs(vi->cvq, sgs, out_num, in_num, vi, GFP_ATOMIC)
 	       < 0);
 
-	virtqueue_kick(vi->cvq);
+	if (unlikely(!virtqueue_kick(vi->cvq)))
+		return status == VIRTIO_NET_OK;
 
 	/* Spin for a response, the kick causes an ioport write, trapping
 	 * into the hypervisor, so the request should be handled immediately.
-- 
cgit 


From 53c18c990644174935ca93e50d7ebd05e04cb9ee Mon Sep 17 00:00:00 2001
From: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Date: Tue, 29 Oct 2013 09:40:11 +1030
Subject: virtio_test: verify if virtqueue_kick() succeeded

Verify if a host kick succeeded by checking return value of virtqueue_kick().

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 tools/virtio/virtio_test.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/virtio/virtio_test.c b/tools/virtio/virtio_test.c
index 059cb723f6a7..bdb71a26ae35 100644
--- a/tools/virtio/virtio_test.c
+++ b/tools/virtio/virtio_test.c
@@ -172,7 +172,8 @@ static void run_test(struct vdev_info *dev, struct vq_info *vq,
 							 GFP_ATOMIC);
 				if (likely(r == 0)) {
 					++started;
-					virtqueue_kick(vq->vq);
+					if (unlikely(!virtqueue_kick(vq->vq))
+						r = -1;
 				}
 			} else
 				r = -1;
-- 
cgit 


From b3b32c94133621c9ba7e4c8f29ec7533f2f4d8ec Mon Sep 17 00:00:00 2001
From: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Date: Tue, 29 Oct 2013 09:40:19 +1030
Subject: virtio_ring: add new function virtqueue_is_broken()

Add new function virtqueue_is_broken(). Callers of virtqueue_get_buf()
should check for a broken queue.

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 drivers/virtio/virtio_ring.c | 8 ++++++++
 include/linux/virtio.h       | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index b47142723119..f47777582ce5 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -851,4 +851,12 @@ unsigned int virtqueue_get_vring_size(struct virtqueue *_vq)
 }
 EXPORT_SYMBOL_GPL(virtqueue_get_vring_size);
 
+bool virtqueue_is_broken(struct virtqueue *_vq)
+{
+	struct vring_virtqueue *vq = to_vvq(_vq);
+
+	return vq->broken;
+}
+EXPORT_SYMBOL_GPL(virtqueue_is_broken);
+
 MODULE_LICENSE("GPL");
diff --git a/include/linux/virtio.h b/include/linux/virtio.h
index 9b4de15fcb2f..e4abb84199be 100644
--- a/include/linux/virtio.h
+++ b/include/linux/virtio.h
@@ -73,6 +73,8 @@ void *virtqueue_detach_unused_buf(struct virtqueue *vq);
 
 unsigned int virtqueue_get_vring_size(struct virtqueue *vq);
 
+bool virtqueue_is_broken(struct virtqueue *vq);
+
 /**
  * virtio_device - representation of a device using virtio
  * @index: unique position on the virtio bus
-- 
cgit 


From 7f03b17d5c3f3b63dcacf0e481cf94c9d07267ab Mon Sep 17 00:00:00 2001
From: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Date: Tue, 29 Oct 2013 09:40:30 +1030
Subject: virtio_blk: verify if queue is broken after virtqueue_get_buf()

In case virtqueue_get_buf() returned with a NULL pointer verify if the
virtqueue is broken in order to leave while loop.

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 drivers/block/virtio_blk.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 6b66252fc4e6..f3be496ac8fa 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -292,6 +292,8 @@ static void virtblk_done(struct virtqueue *vq)
 				req_done = true;
 			}
 		}
+		if (unlikely(virtqueue_is_broken(vq)))
+			break;
 	} while (!virtqueue_enable_cb(vq));
 	/* In case queue is stopped waiting for more buffers. */
 	if (req_done)
-- 
cgit 


From 40e4dc530118dbb79e270d5554ac8415588378d2 Mon Sep 17 00:00:00 2001
From: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Date: Tue, 29 Oct 2013 09:40:39 +1030
Subject: virtio_console: verify if queue is broken after virtqueue_get_buf()

If virtqueue_get_buf() returns with a NULL pointer it should be verified
if the virtqueue is broken, in order to avoid loop calling cpu_relax().

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 drivers/char/virtio_console.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index 2a8d9a7a1834..feea87cc6b8f 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -577,7 +577,8 @@ static ssize_t __send_control_msg(struct ports_device *portdev, u32 port_id,
 	spin_lock(&portdev->c_ovq_lock);
 	if (virtqueue_add_outbuf(vq, sg, 1, &cpkt, GFP_ATOMIC) == 0) {
 		virtqueue_kick(vq);
-		while (!virtqueue_get_buf(vq, &len))
+		while (!virtqueue_get_buf(vq, &len)
+			&& !virtqueue_is_broken(vq))
 			cpu_relax();
 	}
 	spin_unlock(&portdev->c_ovq_lock);
@@ -650,7 +651,8 @@ static ssize_t __send_to_port(struct port *port, struct scatterlist *sg,
 	 * we need to kmalloc a GFP_ATOMIC buffer each time the
 	 * console driver writes something out.
 	 */
-	while (!virtqueue_get_buf(out_vq, &len))
+	while (!virtqueue_get_buf(out_vq, &len)
+		&& !virtqueue_is_broken(out_vq))
 		cpu_relax();
 done:
 	spin_unlock_irqrestore(&port->outvq_lock, flags);
-- 
cgit 


From 047b9b94951dba2e93c65a582ae2bce25c960b86 Mon Sep 17 00:00:00 2001
From: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Date: Tue, 29 Oct 2013 09:40:47 +1030
Subject: virtio_net: verify if queue is broken after virtqueue_get_buf()

If a virtqueue_get_buf() call returns a NULL pointer a possibly endless while
loop should be avoided by checking for a broken virtqueue.

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 drivers/net/virtio_net.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index ff208d2787d3..057ea133cd2b 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -825,7 +825,8 @@ static bool virtnet_send_command(struct virtnet_info *vi, u8 class, u8 cmd,
 	/* Spin for a response, the kick causes an ioport write, trapping
 	 * into the hypervisor, so the request should be handled immediately.
 	 */
-	while (!virtqueue_get_buf(vi->cvq, &tmp))
+	while (!virtqueue_get_buf(vi->cvq, &tmp) &&
+	       !virtqueue_is_broken(vi->cvq))
 		cpu_relax();
 
 	return status == VIRTIO_NET_OK;
-- 
cgit 


From 0e3d4373b8a7757a8f5187f5cabafb6aceff469b Mon Sep 17 00:00:00 2001
From: Minghuan Lian <Minghuan.Lian@freescale.com>
Date: Wed, 31 Jul 2013 10:59:07 +0800
Subject: powerpc/dts: fix sRIO error interrupt for b4860

For B4 platform, MPIC EISR register is in reversed bitmap order,
instead of "Error interrupt source 0-31. Bit 0 represents SRC0."
the correct ordering is "Error interrupt source 0-31. Bit 0
represents SRC31." This patch is to fix sRIO EISR bit value
of error interrupt in dts node.

Signed-off-by: Minghuan Lian <Minghuan.Lian@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/boot/dts/fsl/b4860si-post.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/boot/dts/fsl/b4860si-post.dtsi b/arch/powerpc/boot/dts/fsl/b4860si-post.dtsi
index e5cf6c81dd66..981397518fc6 100644
--- a/arch/powerpc/boot/dts/fsl/b4860si-post.dtsi
+++ b/arch/powerpc/boot/dts/fsl/b4860si-post.dtsi
@@ -41,7 +41,7 @@
 
 &rio {
 	compatible = "fsl,srio";
-	interrupts = <16 2 1 11>;
+	interrupts = <16 2 1 20>;
 	#address-cells = <2>;
 	#size-cells = <2>;
 	fsl,iommu-parent = <&pamu0>;
-- 
cgit 


From bbd234b146a158ae59da0592c1598336db63b0fc Mon Sep 17 00:00:00 2001
From: Chunhe Lan <Chunhe.Lan@freescale.com>
Date: Fri, 2 Aug 2013 16:46:25 +0800
Subject: powerpc/pci: Change the DECLARE_PCI_FIXUP_{HEADER => EARLY} macro of
 pci quirk

Freescale platform has class code = 0x0b2000, when it boots. This makes
kernel PCI bus code to setup these devices resulting into the following
notice information when trying to enable them:

pci 0000:00:00.0: ignoring class 0x0b2000 (doesn't match header type 01)

The above information is outputted by judging value of dev->class before
pci_setup_device() function, and the DECLARE_PCI_FIXUP_HEADER quirk runs
after pci_setup_device() function. But the DECLARE_PCI_FIXUP_EARLY quirk
runs before judging value of dev->class and pci_setup_device() function.
So we use the DECLARE_PCI_FIXUP_EARLY macro to fix this issue.

Signed-off-by: Chunhe Lan <Chunhe.Lan@freescale.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/sysdev/fsl_pci.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index ccfb50ddfe38..21039634d1d0 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -40,7 +40,7 @@
 
 static int fsl_pcie_bus_fixup, is_mpc83xx_pci;
 
-static void quirk_fsl_pcie_header(struct pci_dev *dev)
+static void quirk_fsl_pcie_early(struct pci_dev *dev)
 {
 	u8 hdr_type;
 
@@ -562,7 +562,8 @@ no_bridge:
 }
 #endif /* CONFIG_FSL_SOC_BOOKE || CONFIG_PPC_86xx */
 
-DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_FREESCALE, PCI_ANY_ID, quirk_fsl_pcie_header);
+DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_FREESCALE, PCI_ANY_ID,
+			quirk_fsl_pcie_early);
 
 #if defined(CONFIG_PPC_83xx) || defined(CONFIG_PPC_MPC512x)
 struct mpc83xx_pcie_priv {
-- 
cgit 


From 4f6d45d7db7e4622a74b9fd8c99b13c68129d70d Mon Sep 17 00:00:00 2001
From: Lijun Pan <LIJUN.PAN@FREESCALE.COM>
Date: Thu, 24 Oct 2013 16:11:13 -0500
Subject: powerpc/e6500: Include Power ISA properties

b4420 and b4860 device trees do not have these properties.

Signed-off-by: Lijun Pan <Lijun.Pan@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/boot/dts/fsl/b4420si-pre.dtsi | 2 ++
 arch/powerpc/boot/dts/fsl/b4860si-pre.dtsi | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/arch/powerpc/boot/dts/fsl/b4420si-pre.dtsi b/arch/powerpc/boot/dts/fsl/b4420si-pre.dtsi
index 7b4426e0a5a5..c6e451affb05 100644
--- a/arch/powerpc/boot/dts/fsl/b4420si-pre.dtsi
+++ b/arch/powerpc/boot/dts/fsl/b4420si-pre.dtsi
@@ -34,6 +34,8 @@
 
 /dts-v1/;
 
+/include/ "e6500_power_isa.dtsi"
+
 / {
 	compatible = "fsl,B4420";
 	#address-cells = <2>;
diff --git a/arch/powerpc/boot/dts/fsl/b4860si-pre.dtsi b/arch/powerpc/boot/dts/fsl/b4860si-pre.dtsi
index 5263fa46a3fb..9bc26b147900 100644
--- a/arch/powerpc/boot/dts/fsl/b4860si-pre.dtsi
+++ b/arch/powerpc/boot/dts/fsl/b4860si-pre.dtsi
@@ -34,6 +34,8 @@
 
 /dts-v1/;
 
+/include/ "e6500_power_isa.dtsi"
+
 / {
 	compatible = "fsl,B4860";
 	#address-cells = <2>;
-- 
cgit 


From f4b123886d2cdd196a0e3482de48d921443790c7 Mon Sep 17 00:00:00 2001
From: Lijun Pan <LIJUN.PAN@FREESCALE.COM>
Date: Thu, 24 Oct 2013 16:03:25 -0500
Subject: powerpc/e500v2: Include Power ISA properties

bsc9131 device tree does not have these properties.

Signed-off-by: Lijun Pan <Lijun.Pan@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/boot/dts/fsl/bsc9131si-pre.dtsi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/powerpc/boot/dts/fsl/bsc9131si-pre.dtsi b/arch/powerpc/boot/dts/fsl/bsc9131si-pre.dtsi
index 743e4aeda349..f6ec4a67560c 100644
--- a/arch/powerpc/boot/dts/fsl/bsc9131si-pre.dtsi
+++ b/arch/powerpc/boot/dts/fsl/bsc9131si-pre.dtsi
@@ -33,6 +33,9 @@
  */
 
 /dts-v1/;
+
+/include/ "e500v2_power_isa.dtsi"
+
 / {
 	compatible = "fsl,BSC9131";
 	#address-cells = <2>;
-- 
cgit 


From a0b38b4e7858c76e7e53510f24d6bf22cab144a8 Mon Sep 17 00:00:00 2001
From: Suzuki Poulose <suzuki@in.ibm.com>
Date: Tue, 27 Aug 2013 13:22:14 +0530
Subject: powerpc: Set the NOTE type for SPE regset

The regset defintion for SPE doesn't have the core_note_type
set, which prevents it from being dumped. Add the note type
NT_PPC_SPE for SPE regset.

Signed-off-by: Suzuki K Poulose <suzuki@in.ibm.com>
Cc: Roland McGrath <roland@hack.frob.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/kernel/ptrace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 01be88b7321e..75fb40498b41 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -658,7 +658,7 @@ static const struct user_regset native_regsets[] = {
 #endif
 #ifdef CONFIG_SPE
 	[REGSET_SPE] = {
-		.n = 35,
+		.core_note_type = NT_PPC_SPE, .n = 35,
 		.size = sizeof(u32), .align = sizeof(u32),
 		.active = evr_active, .get = evr_get, .set = evr_set
 	},
-- 
cgit 


From 1eb2819d69c818784cab0d4a89a35e36bd753e57 Mon Sep 17 00:00:00 2001
From: LEROY Christophe <christophe.leroy@c-s.fr>
Date: Wed, 28 Aug 2013 16:19:17 +0200
Subject: powerpc/mpc8xx: Clearer Oops message for Software Emulation Exception

This patch modifies the Oops message in case of Software Emulation Exception.
The existing message is quite confusing because it refers to FPU Emulation
while most often the issue is due to either a non supported instruction
(not necessarily FPU related) or a stale instruction due to HW issues.
The new message tries to be more generic in order to make the user understand
that the Oops is due to something wrong with an instruction, not necessarily
due to an FPU instruction.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/kernel/traps.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index f686686ca0aa..ad20dcfaedd0 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -1468,7 +1468,8 @@ void SoftwareEmulation(struct pt_regs *regs)
 
 	if (!user_mode(regs)) {
 		debugger(regs);
-		die("Kernel Mode Software FPU Emulation", regs, SIGFPE);
+		die("Kernel Mode Unimplemented Instruction or SW FPU Emulation",
+			regs, SIGFPE);
 	}
 
 	if (!emulate_math(regs))
-- 
cgit 


From 0f06ad70921eb00fa48f73754059fd8854f32572 Mon Sep 17 00:00:00 2001
From: "Haijun.Zhang" <Haijun.Zhang@freescale.com>
Date: Thu, 29 Aug 2013 11:31:28 +0800
Subject: powerpc/eSDCH: Specify voltage for T4240QDS

Freescale T4240QDS reference board has extra voltage shifters added
to allow 3.3V operation, so add 3.3v voltage support for T4240QDS.
1.8v and 3.3v is recommand for eMMC and SDHC card.

Signed-off-by: Haijun Zhang <haijun.zhang@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/boot/dts/t4240qds.dts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/powerpc/boot/dts/t4240qds.dts b/arch/powerpc/boot/dts/t4240qds.dts
index 0555976dd0f3..eb3c3de4ef53 100644
--- a/arch/powerpc/boot/dts/t4240qds.dts
+++ b/arch/powerpc/boot/dts/t4240qds.dts
@@ -148,6 +148,10 @@
 				interrupts = <0x1 0x1 0 0>;
 			};
 		};
+
+		sdhc@114000 {
+			voltage-ranges = <1800 1800 3300 3300>;
+		};
 	};
 
 	pci0: pcie@ffe240000 {
-- 
cgit 


From 3169ab00e0727ea2891483e636bd8e6aa11521a1 Mon Sep 17 00:00:00 2001
From: "Haijun.Zhang" <Haijun.Zhang@freescale.com>
Date: Mon, 2 Sep 2013 18:37:02 +0800
Subject: powerpc/dts: Correct sdhci quirk for bsc9131

We use property "sdhci,auto-cmd12" instead of "fsl,sdhci-auto-cmd12"
to distinguish if the sdhc host has quirk SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12.

Signed-off-by: Haijun Zhang <Haijun.Zhang@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/boot/dts/fsl/bsc9131si-post.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/boot/dts/fsl/bsc9131si-post.dtsi b/arch/powerpc/boot/dts/fsl/bsc9131si-post.dtsi
index 5180d9d37989..0c0efa94cfb4 100644
--- a/arch/powerpc/boot/dts/fsl/bsc9131si-post.dtsi
+++ b/arch/powerpc/boot/dts/fsl/bsc9131si-post.dtsi
@@ -130,7 +130,7 @@ usb@22000 {
 
 /include/ "pq3-esdhc-0.dtsi"
 	sdhc@2e000 {
-		fsl,sdhci-auto-cmd12;
+		sdhci,auto-cmd12;
 		interrupts = <41 0x2 0 0>;
 	};
 
-- 
cgit 


From 788d399d3c3dd1e02ab316272e1dc1881182e16d Mon Sep 17 00:00:00 2001
From: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Date: Tue, 3 Sep 2013 16:28:26 +0800
Subject: powerpc/fsl/defconfig: enable CONFIG_AT803X_PHY

Enable CONFIG_AT803X_PHY to support AR8030/8033/8035 PHY.

Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/configs/corenet32_smp_defconfig | 1 +
 arch/powerpc/configs/mpc85xx_defconfig       | 1 +
 arch/powerpc/configs/mpc85xx_smp_defconfig   | 1 +
 3 files changed, 3 insertions(+)

diff --git a/arch/powerpc/configs/corenet32_smp_defconfig b/arch/powerpc/configs/corenet32_smp_defconfig
index 3dfab4c40c76..71bc43ab649a 100644
--- a/arch/powerpc/configs/corenet32_smp_defconfig
+++ b/arch/powerpc/configs/corenet32_smp_defconfig
@@ -104,6 +104,7 @@ CONFIG_FSL_PQ_MDIO=y
 CONFIG_E1000=y
 CONFIG_E1000E=y
 CONFIG_VITESSE_PHY=y
+CONFIG_AT803X_PHY=y
 CONFIG_FIXED_PHY=y
 # CONFIG_INPUT_MOUSEDEV is not set
 # CONFIG_INPUT_KEYBOARD is not set
diff --git a/arch/powerpc/configs/mpc85xx_defconfig b/arch/powerpc/configs/mpc85xx_defconfig
index dc098d988211..d2e0fab5ee5b 100644
--- a/arch/powerpc/configs/mpc85xx_defconfig
+++ b/arch/powerpc/configs/mpc85xx_defconfig
@@ -138,6 +138,7 @@ CONFIG_MARVELL_PHY=y
 CONFIG_DAVICOM_PHY=y
 CONFIG_CICADA_PHY=y
 CONFIG_VITESSE_PHY=y
+CONFIG_AT803X_PHY=y
 CONFIG_FIXED_PHY=y
 CONFIG_INPUT_FF_MEMLESS=m
 # CONFIG_INPUT_MOUSEDEV is not set
diff --git a/arch/powerpc/configs/mpc85xx_smp_defconfig b/arch/powerpc/configs/mpc85xx_smp_defconfig
index 5bca60161bb3..4cb7b59e98bd 100644
--- a/arch/powerpc/configs/mpc85xx_smp_defconfig
+++ b/arch/powerpc/configs/mpc85xx_smp_defconfig
@@ -138,6 +138,7 @@ CONFIG_MARVELL_PHY=y
 CONFIG_DAVICOM_PHY=y
 CONFIG_CICADA_PHY=y
 CONFIG_VITESSE_PHY=y
+CONFIG_AT803X_PHY=y
 CONFIG_FIXED_PHY=y
 CONFIG_INPUT_FF_MEMLESS=m
 # CONFIG_INPUT_MOUSEDEV is not set
-- 
cgit 


From afc4b47372ace24c630c1d79b3a0ed32bf1d19fd Mon Sep 17 00:00:00 2001
From: Hongtao Jia <hongtao.jia@freescale.com>
Date: Mon, 9 Sep 2013 18:03:33 +0800
Subject: powerpc: Add I2C bus multiplexer node for B4 and T4240QDS

In both B4 and T4240QDS platform PCA9547 I2C bus multiplexer is used.
The sub-nodes are also reorganized according to right I2C topology.

Signed-off-by: Jia Hongtao <hongtao.jia@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/boot/dts/b4qds.dtsi   | 51 +++++++++++++++++-----------
 arch/powerpc/boot/dts/t4240qds.dts | 69 ++++++++++++++++++++++----------------
 2 files changed, 73 insertions(+), 47 deletions(-)

diff --git a/arch/powerpc/boot/dts/b4qds.dtsi b/arch/powerpc/boot/dts/b4qds.dtsi
index e6d2f8f90544..8b47edcfabf0 100644
--- a/arch/powerpc/boot/dts/b4qds.dtsi
+++ b/arch/powerpc/boot/dts/b4qds.dtsi
@@ -120,25 +120,38 @@
 		};
 
 		i2c@118000 {
-			eeprom@50 {
-				compatible = "at24,24c64";
-				reg = <0x50>;
-			};
-			eeprom@51 {
-				compatible = "at24,24c256";
-				reg = <0x51>;
-			};
-			eeprom@53 {
-				compatible = "at24,24c256";
-				reg = <0x53>;
-			};
-			eeprom@57 {
-				compatible = "at24,24c256";
-				reg = <0x57>;
-			};
-			rtc@68 {
-				compatible = "dallas,ds3232";
-				reg = <0x68>;
+			mux@77 {
+				compatible = "nxp,pca9547";
+				reg = <0x77>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				i2c@0 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0>;
+
+					eeprom@50 {
+						compatible = "at24,24c64";
+						reg = <0x50>;
+					};
+					eeprom@51 {
+						compatible = "at24,24c256";
+						reg = <0x51>;
+					};
+					eeprom@53 {
+						compatible = "at24,24c256";
+						reg = <0x53>;
+					};
+					eeprom@57 {
+						compatible = "at24,24c256";
+						reg = <0x57>;
+					};
+					rtc@68 {
+						compatible = "dallas,ds3232";
+						reg = <0x68>;
+					};
+				};
 			};
 		};
 
diff --git a/arch/powerpc/boot/dts/t4240qds.dts b/arch/powerpc/boot/dts/t4240qds.dts
index eb3c3de4ef53..63e81b010804 100644
--- a/arch/powerpc/boot/dts/t4240qds.dts
+++ b/arch/powerpc/boot/dts/t4240qds.dts
@@ -118,34 +118,47 @@
 		};
 
 		i2c@118000 {
-			eeprom@51 {
-				compatible = "at24,24c256";
-				reg = <0x51>;
-			};
-			eeprom@52 {
-				compatible = "at24,24c256";
-				reg = <0x52>;
-			};
-			eeprom@53 {
-				compatible = "at24,24c256";
-				reg = <0x53>;
-			};
-			eeprom@54 {
-				compatible = "at24,24c256";
-				reg = <0x54>;
-			};
-			eeprom@55 {
-				compatible = "at24,24c256";
-				reg = <0x55>;
-			};
-			eeprom@56 {
-				compatible = "at24,24c256";
-				reg = <0x56>;
-			};
-			rtc@68 {
-				compatible = "dallas,ds3232";
-				reg = <0x68>;
-				interrupts = <0x1 0x1 0 0>;
+			mux@77 {
+				compatible = "nxp,pca9547";
+				reg = <0x77>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				i2c@0 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <0>;
+
+					eeprom@51 {
+						compatible = "at24,24c256";
+						reg = <0x51>;
+					};
+					eeprom@52 {
+						compatible = "at24,24c256";
+						reg = <0x52>;
+					};
+					eeprom@53 {
+						compatible = "at24,24c256";
+						reg = <0x53>;
+					};
+					eeprom@54 {
+						compatible = "at24,24c256";
+						reg = <0x54>;
+					};
+					eeprom@55 {
+						compatible = "at24,24c256";
+						reg = <0x55>;
+					};
+					eeprom@56 {
+						compatible = "at24,24c256";
+						reg = <0x56>;
+					};
+					rtc@68 {
+						compatible = "dallas,ds3232";
+						reg = <0x68>;
+						interrupts = <0x1 0x1 0 0>;
+					};
+				};
 			};
 		};
 
-- 
cgit 


From 79df1b374ba681f1322a0efd9a88bb85f1462796 Mon Sep 17 00:00:00 2001
From: LEROY Christophe <christophe.leroy@c-s.fr>
Date: Wed, 11 Sep 2013 18:44:44 +0200
Subject: powerpc/8xx: Revert commit e0908085fc2391c85b85fb814ae1df377c8e0dcb

The commit e0908085fc2391c85b85fb814ae1df377c8e0dcb ("powerpc/8xx: Fix
regression introduced by cache coherency rewrite") is not needed
anymore.  The issue was because dcbst wrongly sets the store bit when
causing a DTLB error, but this is now fixed by commit
0a2ab51ffb8dfdf51402dcfb446629648c96bc78 ("powerpc/8xx: Fixup DAR from
buggy dcbX instructions.") which handles the buggy dcbx instructions on
data page faults on the 8xx.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
[scottwood@freescale.com: fix commit message]
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/mm/pgtable.c | 19 +++----------------
 1 file changed, 3 insertions(+), 16 deletions(-)

diff --git a/arch/powerpc/mm/pgtable.c b/arch/powerpc/mm/pgtable.c
index edda589795c3..841e0d00863c 100644
--- a/arch/powerpc/mm/pgtable.c
+++ b/arch/powerpc/mm/pgtable.c
@@ -32,8 +32,6 @@
 #include <asm/tlbflush.h>
 #include <asm/tlb.h>
 
-#include "mmu_decl.h"
-
 static inline int is_exec_fault(void)
 {
 	return current->thread.regs && TRAP(current->thread.regs) == 0x400;
@@ -72,7 +70,7 @@ struct page * maybe_pte_to_page(pte_t pte)
  * support falls into the same category.
  */
 
-static pte_t set_pte_filter(pte_t pte, unsigned long addr)
+static pte_t set_pte_filter(pte_t pte)
 {
 	pte = __pte(pte_val(pte) & ~_PAGE_HPTEFLAGS);
 	if (pte_looks_normal(pte) && !(cpu_has_feature(CPU_FTR_COHERENT_ICACHE) ||
@@ -81,17 +79,6 @@ static pte_t set_pte_filter(pte_t pte, unsigned long addr)
 		if (!pg)
 			return pte;
 		if (!test_bit(PG_arch_1, &pg->flags)) {
-#ifdef CONFIG_8xx
-			/* On 8xx, cache control instructions (particularly
-			 * "dcbst" from flush_dcache_icache) fault as write
-			 * operation if there is an unpopulated TLB entry
-			 * for the address in question. To workaround that,
-			 * we invalidate the TLB here, thus avoiding dcbst
-			 * misbehaviour.
-			 */
-			/* 8xx doesn't care about PID, size or ind args */
-			_tlbil_va(addr, 0, 0, 0);
-#endif /* CONFIG_8xx */
 			flush_dcache_icache_page(pg);
 			set_bit(PG_arch_1, &pg->flags);
 		}
@@ -111,7 +98,7 @@ static pte_t set_access_flags_filter(pte_t pte, struct vm_area_struct *vma,
  * as we don't have two bits to spare for _PAGE_EXEC and _PAGE_HWEXEC so
  * instead we "filter out" the exec permission for non clean pages.
  */
-static pte_t set_pte_filter(pte_t pte, unsigned long addr)
+static pte_t set_pte_filter(pte_t pte)
 {
 	struct page *pg;
 
@@ -193,7 +180,7 @@ void set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep,
 	 * this context might not have been activated yet when this
 	 * is called.
 	 */
-	pte = set_pte_filter(pte, addr);
+	pte = set_pte_filter(pte);
 
 	/* Perform the setting of the PTE */
 	__set_pte_at(mm, addr, ptep, pte, 0);
-- 
cgit 


From 7371fcb7f71854a0add525e6024cd44b81a31dde Mon Sep 17 00:00:00 2001
From: Scott Wood <scottwood@freescale.com>
Date: Wed, 11 Sep 2013 18:36:52 -0500
Subject: powerpc/b4qds: enable coreint

Commit 9837b43c5f3514e5d28f65f1513f4dc6759d2810 ("powerpc/85xx: enable
coreint for all the 64bit boards") removed the ifdef that avoided
coreint on 64-bit, but it missed b4_qds.c.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Cc: Kevin Hao <haokexin@gmail.com>
Cc: Shaveta Leekha <shaveta@freescale.com>
---
 arch/powerpc/platforms/85xx/b4_qds.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/powerpc/platforms/85xx/b4_qds.c b/arch/powerpc/platforms/85xx/b4_qds.c
index 0c6702f8b88e..0f18663f3a76 100644
--- a/arch/powerpc/platforms/85xx/b4_qds.c
+++ b/arch/powerpc/platforms/85xx/b4_qds.c
@@ -79,12 +79,7 @@ define_machine(b4_qds) {
 #ifdef CONFIG_PCI
 	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
 #endif
-/* coreint doesn't play nice with lazy EE, use legacy mpic for now */
-#ifdef CONFIG_PPC64
-	.get_irq		= mpic_get_irq,
-#else
 	.get_irq		= mpic_get_coreint_irq,
-#endif
 	.restart		= fsl_rstcr_restart,
 	.calibrate_decr		= generic_calibrate_decr,
 	.progress		= udbg_progress,
-- 
cgit 


From 8f4af7df86c793fe3333e0cd2c769beef912d21c Mon Sep 17 00:00:00 2001
From: York Sun <yorksun@freescale.com>
Date: Mon, 16 Sep 2013 16:38:06 -0700
Subject: powerpc/t4240emu: Add device tree file for t4240emu

T4240EMU is an emulator target with minimum peripherals. It is based on
T4240QDS and trimmed down most peripherals due to either not modeled or
lack of board level connections. The main purpose of this minimum dts is
to speed up booting on emulator.

Signed-off-by: York Sun <yorksun@freescale.com>
[scottwood@freescale.com: whitespace fixes]
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/boot/dts/t4240emu.dts | 268 +++++++++++++++++++++++++++++++++++++
 1 file changed, 268 insertions(+)
 create mode 100644 arch/powerpc/boot/dts/t4240emu.dts

diff --git a/arch/powerpc/boot/dts/t4240emu.dts b/arch/powerpc/boot/dts/t4240emu.dts
new file mode 100644
index 000000000000..ee24ab335598
--- /dev/null
+++ b/arch/powerpc/boot/dts/t4240emu.dts
@@ -0,0 +1,268 @@
+/*
+ * T4240 emulator Device Tree Source
+ *
+ * Copyright 2013 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Freescale Semiconductor nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/dts-v1/;
+
+/include/ "fsl/e6500_power_isa.dtsi"
+/ {
+	compatible = "fsl,T4240";
+	#address-cells = <2>;
+	#size-cells = <2>;
+	interrupt-parent = <&mpic>;
+
+	aliases {
+		ccsr = &soc;
+
+		serial0 = &serial0;
+		serial1 = &serial1;
+		serial2 = &serial2;
+		serial3 = &serial3;
+		dma0 = &dma0;
+		dma1 = &dma1;
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu0: PowerPC,e6500@0 {
+			device_type = "cpu";
+			reg = <0 1>;
+			next-level-cache = <&L2_1>;
+		};
+		cpu1: PowerPC,e6500@2 {
+			device_type = "cpu";
+			reg = <2 3>;
+			next-level-cache = <&L2_1>;
+		};
+		cpu2: PowerPC,e6500@4 {
+			device_type = "cpu";
+			reg = <4 5>;
+			next-level-cache = <&L2_1>;
+		};
+		cpu3: PowerPC,e6500@6 {
+			device_type = "cpu";
+			reg = <6 7>;
+			next-level-cache = <&L2_1>;
+		};
+
+		cpu4: PowerPC,e6500@8 {
+			device_type = "cpu";
+			reg = <8 9>;
+			next-level-cache = <&L2_2>;
+		};
+		cpu5: PowerPC,e6500@10 {
+			device_type = "cpu";
+			reg = <10 11>;
+			next-level-cache = <&L2_2>;
+		};
+		cpu6: PowerPC,e6500@12 {
+			device_type = "cpu";
+			reg = <12 13>;
+			next-level-cache = <&L2_2>;
+		};
+		cpu7: PowerPC,e6500@14 {
+			device_type = "cpu";
+			reg = <14 15>;
+			next-level-cache = <&L2_2>;
+		};
+
+		cpu8: PowerPC,e6500@16 {
+			device_type = "cpu";
+			reg = <16 17>;
+			next-level-cache = <&L2_3>;
+		};
+		cpu9: PowerPC,e6500@18 {
+			device_type = "cpu";
+			reg = <18 19>;
+			next-level-cache = <&L2_3>;
+		};
+		cpu10: PowerPC,e6500@20 {
+			device_type = "cpu";
+			reg = <20 21>;
+			next-level-cache = <&L2_3>;
+		};
+		cpu11: PowerPC,e6500@22 {
+			device_type = "cpu";
+			reg = <22 23>;
+			next-level-cache = <&L2_3>;
+		};
+	};
+};
+
+/ {
+	model = "fsl,T4240QDS";
+	compatible = "fsl,T4240EMU", "fsl,T4240QDS";
+	#address-cells = <2>;
+	#size-cells = <2>;
+	interrupt-parent = <&mpic>;
+
+	ifc: localbus@ffe124000 {
+		reg = <0xf 0xfe124000 0 0x2000>;
+		ranges = <0 0 0xf 0xe8000000 0x08000000
+			  2 0 0xf 0xff800000 0x00010000
+			  3 0 0xf 0xffdf0000 0x00008000>;
+
+		nor@0,0 {
+			#address-cells = <1>;
+			#size-cells = <1>;
+			compatible = "cfi-flash";
+			reg = <0x0 0x0 0x8000000>;
+
+			bank-width = <2>;
+			device-width = <1>;
+		};
+
+	};
+
+	memory {
+		device_type = "memory";
+	};
+
+	soc: soc@ffe000000 {
+		ranges = <0x00000000 0xf 0xfe000000 0x1000000>;
+		reg = <0xf 0xfe000000 0 0x00001000>;
+
+	};
+};
+
+&ifc {
+	#address-cells = <2>;
+	#size-cells = <1>;
+	compatible = "fsl,ifc", "simple-bus";
+	interrupts = <25 2 0 0>;
+};
+
+&soc {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	device_type = "soc";
+	compatible = "simple-bus";
+
+	soc-sram-error {
+		compatible = "fsl,soc-sram-error";
+		interrupts = <16 2 1 29>;
+	};
+
+	corenet-law@0 {
+		compatible = "fsl,corenet-law";
+		reg = <0x0 0x1000>;
+		fsl,num-laws = <32>;
+	};
+
+	ddr1: memory-controller@8000 {
+		compatible = "fsl,qoriq-memory-controller-v4.7",
+				"fsl,qoriq-memory-controller";
+		reg = <0x8000 0x1000>;
+		interrupts = <16 2 1 23>;
+	};
+
+	ddr2: memory-controller@9000 {
+		compatible = "fsl,qoriq-memory-controller-v4.7",
+				"fsl,qoriq-memory-controller";
+		reg = <0x9000 0x1000>;
+		interrupts = <16 2 1 22>;
+	};
+
+	ddr3: memory-controller@a000 {
+		compatible = "fsl,qoriq-memory-controller-v4.7",
+				"fsl,qoriq-memory-controller";
+		reg = <0xa000 0x1000>;
+		interrupts = <16 2 1 21>;
+	};
+
+	cpc: l3-cache-controller@10000 {
+		compatible = "fsl,t4240-l3-cache-controller", "cache";
+		reg = <0x10000 0x1000
+		       0x11000 0x1000
+		       0x12000 0x1000>;
+		interrupts = <16 2 1 27
+			      16 2 1 26
+			      16 2 1 25>;
+	};
+
+	corenet-cf@18000 {
+		compatible = "fsl,corenet-cf";
+		reg = <0x18000 0x1000>;
+		interrupts = <16 2 1 31>;
+		fsl,ccf-num-csdids = <32>;
+		fsl,ccf-num-snoopids = <32>;
+	};
+
+	iommu@20000 {
+		compatible = "fsl,pamu-v1.0", "fsl,pamu";
+		reg = <0x20000 0x6000>;
+		interrupts = <
+			24 2 0 0
+			16 2 1 30>;
+	};
+
+/include/ "fsl/qoriq-mpic.dtsi"
+
+	guts: global-utilities@e0000 {
+		compatible = "fsl,t4240-device-config", "fsl,qoriq-device-config-2.0";
+		reg = <0xe0000 0xe00>;
+		fsl,has-rstcr;
+		fsl,liodn-bits = <12>;
+	};
+
+	clockgen: global-utilities@e1000 {
+		compatible = "fsl,t4240-clockgen", "fsl,qoriq-clockgen-2.0";
+		reg = <0xe1000 0x1000>;
+	};
+
+/include/ "fsl/qoriq-dma-0.dtsi"
+/include/ "fsl/qoriq-dma-1.dtsi"
+
+/include/ "fsl/qoriq-i2c-0.dtsi"
+/include/ "fsl/qoriq-i2c-1.dtsi"
+/include/ "fsl/qoriq-duart-0.dtsi"
+/include/ "fsl/qoriq-duart-1.dtsi"
+
+	L2_1: l2-cache-controller@c20000 {
+		compatible = "fsl,t4240-l2-cache-controller";
+		reg = <0xc20000 0x40000>;
+		next-level-cache = <&cpc>;
+	};
+	L2_2: l2-cache-controller@c60000 {
+		compatible = "fsl,t4240-l2-cache-controller";
+		reg = <0xc60000 0x40000>;
+		next-level-cache = <&cpc>;
+	};
+	L2_3: l2-cache-controller@ca0000 {
+		compatible = "fsl,t4240-l2-cache-controller";
+		reg = <0xca0000 0x40000>;
+		next-level-cache = <&cpc>;
+	};
+};
-- 
cgit 


From 312325031d0da8a7c4b2857e79a23fb89df2b887 Mon Sep 17 00:00:00 2001
From: York Sun <yorksun@freescale.com>
Date: Mon, 16 Sep 2013 16:38:07 -0700
Subject: powerpc/b4860emu: Add device tree file for b4860emu

B4860EMU is a emualtor target with minimum peripherals. It is based on
B4860QDS and trimmed down most peripherals due to either not modeled or
lack of board level connections. The main purpose of this minimum dts is
to speed up booting on emulator.

Signed-off-by: York Sun <yorksun@freescale.com>
[scottwood@freescale.com: whitespace fix]
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/boot/dts/b4860emu.dts | 218 +++++++++++++++++++++++++++++++++++++
 1 file changed, 218 insertions(+)
 create mode 100644 arch/powerpc/boot/dts/b4860emu.dts

diff --git a/arch/powerpc/boot/dts/b4860emu.dts b/arch/powerpc/boot/dts/b4860emu.dts
new file mode 100644
index 000000000000..7290021f2dfc
--- /dev/null
+++ b/arch/powerpc/boot/dts/b4860emu.dts
@@ -0,0 +1,218 @@
+/*
+ * B4860 emulator Device Tree Source
+ *
+ * Copyright 2013 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Freescale Semiconductor nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * This software is provided by Freescale Semiconductor "as is" and any
+ * express or implied warranties, including, but not limited to, the implied
+ * warranties of merchantability and fitness for a particular purpose are
+ * disclaimed. In no event shall Freescale Semiconductor be liable for any
+ * direct, indirect, incidental, special, exemplary, or consequential damages
+ * (including, but not limited to, procurement of substitute goods or services;
+ * loss of use, data, or profits; or business interruption) however caused and
+ * on any theory of liability, whether in contract, strict liability, or tort
+ * (including negligence or otherwise) arising in any way out of the use of
+ * this software, even if advised of the possibility of such damage.
+ */
+
+/dts-v1/;
+
+/include/ "fsl/e6500_power_isa.dtsi"
+
+/ {
+	compatible = "fsl,B4860";
+	#address-cells = <2>;
+	#size-cells = <2>;
+	interrupt-parent = <&mpic>;
+
+	aliases {
+		ccsr = &soc;
+
+		serial0 = &serial0;
+		serial1 = &serial1;
+		serial2 = &serial2;
+		serial3 = &serial3;
+		dma0 = &dma0;
+		dma1 = &dma1;
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu0: PowerPC,e6500@0 {
+			device_type = "cpu";
+			reg = <0 1>;
+			next-level-cache = <&L2>;
+		};
+		cpu1: PowerPC,e6500@2 {
+			device_type = "cpu";
+			reg = <2 3>;
+			next-level-cache = <&L2>;
+		};
+		cpu2: PowerPC,e6500@4 {
+			device_type = "cpu";
+			reg = <4 5>;
+			next-level-cache = <&L2>;
+		};
+		cpu3: PowerPC,e6500@6 {
+			device_type = "cpu";
+			reg = <6 7>;
+			next-level-cache = <&L2>;
+		};
+	};
+};
+
+/ {
+	model = "fsl,B4860QDS";
+	compatible = "fsl,B4860EMU", "fsl,B4860QDS";
+	#address-cells = <2>;
+	#size-cells = <2>;
+	interrupt-parent = <&mpic>;
+
+	ifc: localbus@ffe124000 {
+		reg = <0xf 0xfe124000 0 0x2000>;
+		ranges = <0 0 0xf 0xe8000000 0x08000000
+			  2 0 0xf 0xff800000 0x00010000
+			  3 0 0xf 0xffdf0000 0x00008000>;
+
+		nor@0,0 {
+			#address-cells = <1>;
+			#size-cells = <1>;
+			compatible = "cfi-flash";
+			reg = <0x0 0x0 0x8000000>;
+			bank-width = <2>;
+			device-width = <1>;
+		};
+	};
+
+	memory {
+		device_type = "memory";
+	};
+
+	soc: soc@ffe000000 {
+		ranges = <0x00000000 0xf 0xfe000000 0x1000000>;
+		reg = <0xf 0xfe000000 0 0x00001000>;
+	};
+};
+
+&ifc {
+	#address-cells = <2>;
+	#size-cells = <1>;
+	compatible = "fsl,ifc", "simple-bus";
+	interrupts = <25 2 0 0>;
+};
+
+&soc {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	device_type = "soc";
+	compatible = "simple-bus";
+
+	soc-sram-error {
+		compatible = "fsl,soc-sram-error";
+		interrupts = <16 2 1 2>;
+	};
+
+	corenet-law@0 {
+		compatible = "fsl,corenet-law";
+		reg = <0x0 0x1000>;
+		fsl,num-laws = <32>;
+	};
+
+	ddr1: memory-controller@8000 {
+		compatible = "fsl,qoriq-memory-controller-v4.5", "fsl,qoriq-memory-controller";
+		reg = <0x8000 0x1000>;
+		interrupts = <16 2 1 8>;
+	};
+
+	ddr2: memory-controller@9000 {
+		compatible = "fsl,qoriq-memory-controller-v4.5","fsl,qoriq-memory-controller";
+		reg = <0x9000 0x1000>;
+		interrupts = <16 2 1 9>;
+	};
+
+	cpc: l3-cache-controller@10000 {
+		compatible = "fsl,b4-l3-cache-controller", "cache";
+		reg = <0x10000 0x1000
+		       0x11000 0x1000>;
+		interrupts = <16 2 1 4>;
+	};
+
+	corenet-cf@18000 {
+		compatible = "fsl,b4-corenet-cf";
+		reg = <0x18000 0x1000>;
+		interrupts = <16 2 1 0>;
+		fsl,ccf-num-csdids = <32>;
+		fsl,ccf-num-snoopids = <32>;
+	};
+
+	iommu@20000 {
+		compatible = "fsl,pamu-v1.0", "fsl,pamu";
+		reg = <0x20000 0x4000>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+		interrupts = <
+			24 2 0 0
+			16 2 1 1>;
+		pamu0: pamu@0 {
+			reg = <0 0x1000>;
+			fsl,primary-cache-geometry = <8 1>;
+			fsl,secondary-cache-geometry = <32 2>;
+		};
+	};
+
+/include/ "fsl/qoriq-mpic.dtsi"
+
+	guts: global-utilities@e0000 {
+		compatible = "fsl,b4-device-config";
+		reg = <0xe0000 0xe00>;
+		fsl,has-rstcr;
+		fsl,liodn-bits = <12>;
+	};
+
+	clockgen: global-utilities@e1000 {
+		compatible = "fsl,b4-clockgen", "fsl,qoriq-clockgen-2.0";
+		reg = <0xe1000 0x1000>;
+	};
+
+/include/ "fsl/qoriq-dma-0.dtsi"
+	dma@100300 {
+		fsl,iommu-parent = <&pamu0>;
+		fsl,liodn-reg = <&guts 0x580>; /* DMA1LIODNR */
+	};
+
+/include/ "fsl/qoriq-dma-1.dtsi"
+	dma@101300 {
+		fsl,iommu-parent = <&pamu0>;
+		fsl,liodn-reg = <&guts 0x584>; /* DMA2LIODNR */
+	};
+
+/include/ "fsl/qoriq-i2c-0.dtsi"
+/include/ "fsl/qoriq-i2c-1.dtsi"
+/include/ "fsl/qoriq-duart-0.dtsi"
+/include/ "fsl/qoriq-duart-1.dtsi"
+
+	L2: l2-cache-controller@c20000 {
+		compatible = "fsl,b4-l2-cache-controller";
+		reg = <0xc20000 0x1000>;
+		next-level-cache = <&cpc>;
+	};
+};
-- 
cgit 


From 8f4a9e525a91d5903165167f1a7dbb22e97edcd0 Mon Sep 17 00:00:00 2001
From: Prabhakar Kushwaha <prabhakar@freescale.com>
Date: Tue, 24 Sep 2013 16:20:32 +0530
Subject: powerpc/dts/c293pcie: Add range field for IFC NAND

C290PCIe has NAND flash present on IFC Chip Select(CS) 1.

So Add "ranges" field for NAND flash on CS1.

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/boot/dts/c293pcie.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/boot/dts/c293pcie.dts b/arch/powerpc/boot/dts/c293pcie.dts
index 1238bda8901f..6681cc21030b 100644
--- a/arch/powerpc/boot/dts/c293pcie.dts
+++ b/arch/powerpc/boot/dts/c293pcie.dts
@@ -45,6 +45,7 @@
 	ifc: ifc@fffe1e000 {
 		reg = <0xf 0xffe1e000 0 0x2000>;
 		ranges = <0x0 0x0 0xf 0xec000000 0x04000000
+			  0x1 0x0 0xf 0xff800000 0x00010000
 			  0x2 0x0 0xf 0xffdf0000 0x00010000>;
 
 	};
-- 
cgit 


From 512e267f3594b5a3b4937a00666241cb994ef55a Mon Sep 17 00:00:00 2001
From: Kevin Hao <haokexin@gmail.com>
Date: Thu, 26 Sep 2013 09:42:26 +0800
Subject: powerpc/85xx: introduce corenet_generic machine

In the current kernel, the board files for p2041rdb, p3041ds, p4080ds,
p5020ds, p5040ds, t4240qds and b4qds are almost the same except the
machine name. So this introduces a cornet_generic machine to support
all these boards to avoid the code duplication.

With these changes the file corenet_ds.h becomes useless. Just delete
it.

Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/platforms/85xx/Kconfig      | 10 ++++
 arch/powerpc/platforms/85xx/Makefile     |  8 +--
 arch/powerpc/platforms/85xx/b4_qds.c     | 97 --------------------------------
 arch/powerpc/platforms/85xx/corenet_ds.c | 86 ++++++++++++++++++++++++++++
 arch/powerpc/platforms/85xx/corenet_ds.h | 19 -------
 arch/powerpc/platforms/85xx/p2041_rdb.c  | 87 ----------------------------
 arch/powerpc/platforms/85xx/p3041_ds.c   | 89 -----------------------------
 arch/powerpc/platforms/85xx/p4080_ds.c   | 87 ----------------------------
 arch/powerpc/platforms/85xx/p5020_ds.c   | 93 ------------------------------
 arch/powerpc/platforms/85xx/p5040_ds.c   | 84 ---------------------------
 arch/powerpc/platforms/85xx/t4240_qds.c  | 93 ------------------------------
 11 files changed, 97 insertions(+), 656 deletions(-)
 delete mode 100644 arch/powerpc/platforms/85xx/b4_qds.c
 delete mode 100644 arch/powerpc/platforms/85xx/corenet_ds.h
 delete mode 100644 arch/powerpc/platforms/85xx/p2041_rdb.c
 delete mode 100644 arch/powerpc/platforms/85xx/p3041_ds.c
 delete mode 100644 arch/powerpc/platforms/85xx/p4080_ds.c
 delete mode 100644 arch/powerpc/platforms/85xx/p5020_ds.c
 delete mode 100644 arch/powerpc/platforms/85xx/p5040_ds.c
 delete mode 100644 arch/powerpc/platforms/85xx/t4240_qds.c

diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig
index de2eb9320993..3bee94398ec3 100644
--- a/arch/powerpc/platforms/85xx/Kconfig
+++ b/arch/powerpc/platforms/85xx/Kconfig
@@ -228,6 +228,7 @@ config P2041_RDB
 	select GPIO_MPC8XXX
 	select HAS_RAPIDIO
 	select PPC_EPAPR_HV_PIC
+	select CORENET_GENERIC
 	help
 	  This option enables support for the P2041 RDB board
 
@@ -241,6 +242,7 @@ config P3041_DS
 	select GPIO_MPC8XXX
 	select HAS_RAPIDIO
 	select PPC_EPAPR_HV_PIC
+	select CORENET_GENERIC
 	help
 	  This option enables support for the P3041 DS board
 
@@ -254,6 +256,7 @@ config P4080_DS
 	select GPIO_MPC8XXX
 	select HAS_RAPIDIO
 	select PPC_EPAPR_HV_PIC
+	select CORENET_GENERIC
 	help
 	  This option enables support for the P4080 DS board
 
@@ -278,6 +281,7 @@ config P5020_DS
 	select GPIO_MPC8XXX
 	select HAS_RAPIDIO
 	select PPC_EPAPR_HV_PIC
+	select CORENET_GENERIC
 	help
 	  This option enables support for the P5020 DS board
 
@@ -292,6 +296,7 @@ config P5040_DS
 	select GPIO_MPC8XXX
 	select HAS_RAPIDIO
 	select PPC_EPAPR_HV_PIC
+	select CORENET_GENERIC
 	help
 	  This option enables support for the P5040 DS board
 
@@ -323,6 +328,7 @@ config T4240_QDS
 	select GPIO_MPC8XXX
 	select HAS_RAPIDIO
 	select PPC_EPAPR_HV_PIC
+	select CORENET_GENERIC
 	help
 	  This option enables support for the T4240 QDS board
 
@@ -337,6 +343,7 @@ config B4_QDS
 	select ARCH_REQUIRE_GPIOLIB
 	select HAS_RAPIDIO
 	select PPC_EPAPR_HV_PIC
+	select CORENET_GENERIC
 	help
 	  This option enables support for the B4 QDS board
 	  The B4 application development system B4 QDS is a complete
@@ -348,3 +355,6 @@ endif # FSL_SOC_BOOKE
 
 config TQM85xx
 	bool
+
+config CORENET_GENERIC
+	bool
diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile
index 53c9f75a6907..a6c281d596e8 100644
--- a/arch/powerpc/platforms/85xx/Makefile
+++ b/arch/powerpc/platforms/85xx/Makefile
@@ -18,13 +18,7 @@ obj-$(CONFIG_P1010_RDB)   += p1010rdb.o
 obj-$(CONFIG_P1022_DS)    += p1022_ds.o
 obj-$(CONFIG_P1022_RDK)   += p1022_rdk.o
 obj-$(CONFIG_P1023_RDS)   += p1023_rds.o
-obj-$(CONFIG_P2041_RDB)   += p2041_rdb.o corenet_ds.o
-obj-$(CONFIG_P3041_DS)    += p3041_ds.o corenet_ds.o
-obj-$(CONFIG_P4080_DS)    += p4080_ds.o corenet_ds.o
-obj-$(CONFIG_P5020_DS)    += p5020_ds.o corenet_ds.o
-obj-$(CONFIG_P5040_DS)    += p5040_ds.o corenet_ds.o
-obj-$(CONFIG_T4240_QDS)   += t4240_qds.o corenet_ds.o
-obj-$(CONFIG_B4_QDS)	  += b4_qds.o corenet_ds.o
+obj-$(CONFIG_CORENET_GENERIC)   += corenet_ds.o
 obj-$(CONFIG_STX_GP3)	  += stx_gp3.o
 obj-$(CONFIG_TQM85xx)	  += tqm85xx.o
 obj-$(CONFIG_SBC8548)     += sbc8548.o
diff --git a/arch/powerpc/platforms/85xx/b4_qds.c b/arch/powerpc/platforms/85xx/b4_qds.c
deleted file mode 100644
index 0f18663f3a76..000000000000
--- a/arch/powerpc/platforms/85xx/b4_qds.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/*
- * B4 QDS Setup
- * Should apply for QDS platform of B4860 and it's personalities.
- * viz B4860/B4420/B4220QDS
- *
- * Copyright 2012 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/kdev_t.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/phy.h>
-
-#include <asm/time.h>
-#include <asm/machdep.h>
-#include <asm/pci-bridge.h>
-#include <mm/mmu_decl.h>
-#include <asm/prom.h>
-#include <asm/udbg.h>
-#include <asm/mpic.h>
-
-#include <linux/of_platform.h>
-#include <sysdev/fsl_soc.h>
-#include <sysdev/fsl_pci.h>
-#include <asm/ehv_pic.h>
-
-#include "corenet_ds.h"
-
-/*
- * Called very early, device-tree isn't unflattened
- */
-static int __init b4_qds_probe(void)
-{
-	unsigned long root = of_get_flat_dt_root();
-#ifdef CONFIG_SMP
-	extern struct smp_ops_t smp_85xx_ops;
-#endif
-
-	if ((of_flat_dt_is_compatible(root, "fsl,B4860QDS")) ||
-		(of_flat_dt_is_compatible(root, "fsl,B4420QDS")) ||
-			(of_flat_dt_is_compatible(root, "fsl,B4220QDS")))
-		return 1;
-
-	/* Check if we're running under the Freescale hypervisor */
-	if ((of_flat_dt_is_compatible(root, "fsl,B4860QDS-hv")) ||
-		(of_flat_dt_is_compatible(root, "fsl,B4420QDS-hv")) ||
-			(of_flat_dt_is_compatible(root, "fsl,B4220QDS-hv"))) {
-		ppc_md.init_IRQ = ehv_pic_init;
-		ppc_md.get_irq = ehv_pic_get_irq;
-		ppc_md.restart = fsl_hv_restart;
-		ppc_md.power_off = fsl_hv_halt;
-		ppc_md.halt = fsl_hv_halt;
-#ifdef CONFIG_SMP
-		/*
-		 * Disable the timebase sync operations because we can't write
-		 * to the timebase registers under the hypervisor.
-		  */
-		smp_85xx_ops.give_timebase = NULL;
-		smp_85xx_ops.take_timebase = NULL;
-#endif
-		return 1;
-	}
-
-	return 0;
-}
-
-define_machine(b4_qds) {
-	.name			= "B4 QDS",
-	.probe			= b4_qds_probe,
-	.setup_arch		= corenet_ds_setup_arch,
-	.init_IRQ		= corenet_ds_pic_init,
-#ifdef CONFIG_PCI
-	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
-#endif
-	.get_irq		= mpic_get_coreint_irq,
-	.restart		= fsl_rstcr_restart,
-	.calibrate_decr		= generic_calibrate_decr,
-	.progress		= udbg_progress,
-#ifdef CONFIG_PPC64
-	.power_save		= book3e_idle,
-#else
-	.power_save		= e500_idle,
-#endif
-};
-
-machine_arch_initcall(b4_qds, corenet_ds_publish_devices);
-
-#ifdef CONFIG_SWIOTLB
-machine_arch_initcall(b4_qds, swiotlb_setup_bus_notifier);
-#endif
diff --git a/arch/powerpc/platforms/85xx/corenet_ds.c b/arch/powerpc/platforms/85xx/corenet_ds.c
index aa3690bae415..8e0285adeb45 100644
--- a/arch/powerpc/platforms/85xx/corenet_ds.c
+++ b/arch/powerpc/platforms/85xx/corenet_ds.c
@@ -25,6 +25,7 @@
 #include <asm/prom.h>
 #include <asm/udbg.h>
 #include <asm/mpic.h>
+#include <asm/ehv_pic.h>
 
 #include <linux/of_platform.h>
 #include <sysdev/fsl_soc.h>
@@ -94,3 +95,88 @@ int __init corenet_ds_publish_devices(void)
 {
 	return of_platform_bus_probe(NULL, of_device_ids, NULL);
 }
+
+static const char * const boards[] __initconst = {
+	"fsl,P2041RDB",
+	"fsl,P3041DS",
+	"fsl,P4080DS",
+	"fsl,P5020DS",
+	"fsl,P5040DS",
+	"fsl,T4240QDS",
+	"fsl,B4860QDS",
+	"fsl,B4420QDS",
+	"fsl,B4220QDS",
+	NULL
+};
+
+static const char * const hv_boards[] __initconst = {
+	"fsl,P2041RDB-hv",
+	"fsl,P3041DS-hv",
+	"fsl,P4080DS-hv",
+	"fsl,P5020DS-hv",
+	"fsl,P5040DS-hv",
+	"fsl,T4240QDS-hv",
+	"fsl,B4860QDS-hv",
+	"fsl,B4420QDS-hv",
+	"fsl,B4220QDS-hv",
+	NULL
+};
+
+/*
+ * Called very early, device-tree isn't unflattened
+ */
+static int __init corenet_generic_probe(void)
+{
+	unsigned long root = of_get_flat_dt_root();
+#ifdef CONFIG_SMP
+	extern struct smp_ops_t smp_85xx_ops;
+#endif
+
+	if (of_flat_dt_match(root, boards))
+		return 1;
+
+	/* Check if we're running under the Freescale hypervisor */
+	if (of_flat_dt_match(root, hv_boards)) {
+		ppc_md.init_IRQ = ehv_pic_init;
+		ppc_md.get_irq = ehv_pic_get_irq;
+		ppc_md.restart = fsl_hv_restart;
+		ppc_md.power_off = fsl_hv_halt;
+		ppc_md.halt = fsl_hv_halt;
+#ifdef CONFIG_SMP
+		/*
+		 * Disable the timebase sync operations because we can't write
+		 * to the timebase registers under the hypervisor.
+		  */
+		smp_85xx_ops.give_timebase = NULL;
+		smp_85xx_ops.take_timebase = NULL;
+#endif
+		return 1;
+	}
+
+	return 0;
+}
+
+define_machine(corenet_generic) {
+	.name			= "CoreNet Generic",
+	.probe			= corenet_generic_probe,
+	.setup_arch		= corenet_ds_setup_arch,
+	.init_IRQ		= corenet_ds_pic_init,
+#ifdef CONFIG_PCI
+	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
+#endif
+	.get_irq		= mpic_get_coreint_irq,
+	.restart		= fsl_rstcr_restart,
+	.calibrate_decr		= generic_calibrate_decr,
+	.progress		= udbg_progress,
+#ifdef CONFIG_PPC64
+	.power_save		= book3e_idle,
+#else
+	.power_save		= e500_idle,
+#endif
+};
+
+machine_arch_initcall(corenet_generic, corenet_ds_publish_devices);
+
+#ifdef CONFIG_SWIOTLB
+machine_arch_initcall(corenet_generic, swiotlb_setup_bus_notifier);
+#endif
diff --git a/arch/powerpc/platforms/85xx/corenet_ds.h b/arch/powerpc/platforms/85xx/corenet_ds.h
deleted file mode 100644
index ddd700b23031..000000000000
--- a/arch/powerpc/platforms/85xx/corenet_ds.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- * Corenet based SoC DS Setup
- *
- * Copyright 2009 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- */
-
-#ifndef CORENET_DS_H
-#define CORENET_DS_H
-
-extern void __init corenet_ds_pic_init(void);
-extern void __init corenet_ds_setup_arch(void);
-extern int __init corenet_ds_publish_devices(void);
-
-#endif
diff --git a/arch/powerpc/platforms/85xx/p2041_rdb.c b/arch/powerpc/platforms/85xx/p2041_rdb.c
deleted file mode 100644
index 000c0892fc40..000000000000
--- a/arch/powerpc/platforms/85xx/p2041_rdb.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * P2041 RDB Setup
- *
- * Copyright 2011 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/kdev_t.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/phy.h>
-
-#include <asm/time.h>
-#include <asm/machdep.h>
-#include <asm/pci-bridge.h>
-#include <mm/mmu_decl.h>
-#include <asm/prom.h>
-#include <asm/udbg.h>
-#include <asm/mpic.h>
-
-#include <linux/of_platform.h>
-#include <sysdev/fsl_soc.h>
-#include <sysdev/fsl_pci.h>
-#include <asm/ehv_pic.h>
-
-#include "corenet_ds.h"
-
-/*
- * Called very early, device-tree isn't unflattened
- */
-static int __init p2041_rdb_probe(void)
-{
-	unsigned long root = of_get_flat_dt_root();
-#ifdef CONFIG_SMP
-	extern struct smp_ops_t smp_85xx_ops;
-#endif
-
-	if (of_flat_dt_is_compatible(root, "fsl,P2041RDB"))
-		return 1;
-
-	/* Check if we're running under the Freescale hypervisor */
-	if (of_flat_dt_is_compatible(root, "fsl,P2041RDB-hv")) {
-		ppc_md.init_IRQ = ehv_pic_init;
-		ppc_md.get_irq = ehv_pic_get_irq;
-		ppc_md.restart = fsl_hv_restart;
-		ppc_md.power_off = fsl_hv_halt;
-		ppc_md.halt = fsl_hv_halt;
-#ifdef CONFIG_SMP
-		/*
-		 * Disable the timebase sync operations because we can't write
-		 * to the timebase registers under the hypervisor.
-		  */
-		smp_85xx_ops.give_timebase = NULL;
-		smp_85xx_ops.take_timebase = NULL;
-#endif
-		return 1;
-	}
-
-	return 0;
-}
-
-define_machine(p2041_rdb) {
-	.name			= "P2041 RDB",
-	.probe			= p2041_rdb_probe,
-	.setup_arch		= corenet_ds_setup_arch,
-	.init_IRQ		= corenet_ds_pic_init,
-#ifdef CONFIG_PCI
-	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
-#endif
-	.get_irq		= mpic_get_coreint_irq,
-	.restart		= fsl_rstcr_restart,
-	.calibrate_decr		= generic_calibrate_decr,
-	.progress		= udbg_progress,
-	.power_save		= e500_idle,
-};
-
-machine_arch_initcall(p2041_rdb, corenet_ds_publish_devices);
-
-#ifdef CONFIG_SWIOTLB
-machine_arch_initcall(p2041_rdb, swiotlb_setup_bus_notifier);
-#endif
diff --git a/arch/powerpc/platforms/85xx/p3041_ds.c b/arch/powerpc/platforms/85xx/p3041_ds.c
deleted file mode 100644
index b3edc205daa9..000000000000
--- a/arch/powerpc/platforms/85xx/p3041_ds.c
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * P3041 DS Setup
- *
- * Maintained by Kumar Gala (see MAINTAINERS for contact information)
- *
- * Copyright 2009-2010 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/kdev_t.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/phy.h>
-
-#include <asm/time.h>
-#include <asm/machdep.h>
-#include <asm/pci-bridge.h>
-#include <mm/mmu_decl.h>
-#include <asm/prom.h>
-#include <asm/udbg.h>
-#include <asm/mpic.h>
-
-#include <linux/of_platform.h>
-#include <sysdev/fsl_soc.h>
-#include <sysdev/fsl_pci.h>
-#include <asm/ehv_pic.h>
-
-#include "corenet_ds.h"
-
-/*
- * Called very early, device-tree isn't unflattened
- */
-static int __init p3041_ds_probe(void)
-{
-	unsigned long root = of_get_flat_dt_root();
-#ifdef CONFIG_SMP
-	extern struct smp_ops_t smp_85xx_ops;
-#endif
-
-	if (of_flat_dt_is_compatible(root, "fsl,P3041DS"))
-		return 1;
-
-	/* Check if we're running under the Freescale hypervisor */
-	if (of_flat_dt_is_compatible(root, "fsl,P3041DS-hv")) {
-		ppc_md.init_IRQ = ehv_pic_init;
-		ppc_md.get_irq = ehv_pic_get_irq;
-		ppc_md.restart = fsl_hv_restart;
-		ppc_md.power_off = fsl_hv_halt;
-		ppc_md.halt = fsl_hv_halt;
-#ifdef CONFIG_SMP
-		/*
-		 * Disable the timebase sync operations because we can't write
-		 * to the timebase registers under the hypervisor.
-		  */
-		smp_85xx_ops.give_timebase = NULL;
-		smp_85xx_ops.take_timebase = NULL;
-#endif
-		return 1;
-	}
-
-	return 0;
-}
-
-define_machine(p3041_ds) {
-	.name			= "P3041 DS",
-	.probe			= p3041_ds_probe,
-	.setup_arch		= corenet_ds_setup_arch,
-	.init_IRQ		= corenet_ds_pic_init,
-#ifdef CONFIG_PCI
-	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
-#endif
-	.get_irq		= mpic_get_coreint_irq,
-	.restart		= fsl_rstcr_restart,
-	.calibrate_decr		= generic_calibrate_decr,
-	.progress		= udbg_progress,
-	.power_save		= e500_idle,
-};
-
-machine_arch_initcall(p3041_ds, corenet_ds_publish_devices);
-
-#ifdef CONFIG_SWIOTLB
-machine_arch_initcall(p3041_ds, swiotlb_setup_bus_notifier);
-#endif
diff --git a/arch/powerpc/platforms/85xx/p4080_ds.c b/arch/powerpc/platforms/85xx/p4080_ds.c
deleted file mode 100644
index 54df10632aea..000000000000
--- a/arch/powerpc/platforms/85xx/p4080_ds.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * P4080 DS Setup
- *
- * Maintained by Kumar Gala (see MAINTAINERS for contact information)
- *
- * Copyright 2009 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/kdev_t.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-
-#include <asm/time.h>
-#include <asm/machdep.h>
-#include <asm/pci-bridge.h>
-#include <mm/mmu_decl.h>
-#include <asm/prom.h>
-#include <asm/udbg.h>
-#include <asm/mpic.h>
-
-#include <linux/of_platform.h>
-#include <sysdev/fsl_soc.h>
-#include <sysdev/fsl_pci.h>
-#include <asm/ehv_pic.h>
-
-#include "corenet_ds.h"
-
-/*
- * Called very early, device-tree isn't unflattened
- */
-static int __init p4080_ds_probe(void)
-{
-	unsigned long root = of_get_flat_dt_root();
-#ifdef CONFIG_SMP
-	extern struct smp_ops_t smp_85xx_ops;
-#endif
-
-	if (of_flat_dt_is_compatible(root, "fsl,P4080DS"))
-		return 1;
-
-	/* Check if we're running under the Freescale hypervisor */
-	if (of_flat_dt_is_compatible(root, "fsl,P4080DS-hv")) {
-		ppc_md.init_IRQ = ehv_pic_init;
-		ppc_md.get_irq = ehv_pic_get_irq;
-		ppc_md.restart = fsl_hv_restart;
-		ppc_md.power_off = fsl_hv_halt;
-		ppc_md.halt = fsl_hv_halt;
-#ifdef CONFIG_SMP
-		/*
-		 * Disable the timebase sync operations because we can't write
-		 * to the timebase registers under the hypervisor.
-		  */
-		smp_85xx_ops.give_timebase = NULL;
-		smp_85xx_ops.take_timebase = NULL;
-#endif
-		return 1;
-	}
-
-	return 0;
-}
-
-define_machine(p4080_ds) {
-	.name			= "P4080 DS",
-	.probe			= p4080_ds_probe,
-	.setup_arch		= corenet_ds_setup_arch,
-	.init_IRQ		= corenet_ds_pic_init,
-#ifdef CONFIG_PCI
-	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
-#endif
-	.get_irq		= mpic_get_coreint_irq,
-	.restart		= fsl_rstcr_restart,
-	.calibrate_decr		= generic_calibrate_decr,
-	.progress		= udbg_progress,
-	.power_save		= e500_idle,
-};
-
-machine_arch_initcall(p4080_ds, corenet_ds_publish_devices);
-#ifdef CONFIG_SWIOTLB
-machine_arch_initcall(p4080_ds, swiotlb_setup_bus_notifier);
-#endif
diff --git a/arch/powerpc/platforms/85xx/p5020_ds.c b/arch/powerpc/platforms/85xx/p5020_ds.c
deleted file mode 100644
index 39cfa4044e6c..000000000000
--- a/arch/powerpc/platforms/85xx/p5020_ds.c
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * P5020 DS Setup
- *
- * Maintained by Kumar Gala (see MAINTAINERS for contact information)
- *
- * Copyright 2009-2010 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/kdev_t.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/phy.h>
-
-#include <asm/time.h>
-#include <asm/machdep.h>
-#include <asm/pci-bridge.h>
-#include <mm/mmu_decl.h>
-#include <asm/prom.h>
-#include <asm/udbg.h>
-#include <asm/mpic.h>
-
-#include <linux/of_platform.h>
-#include <sysdev/fsl_soc.h>
-#include <sysdev/fsl_pci.h>
-#include <asm/ehv_pic.h>
-
-#include "corenet_ds.h"
-
-/*
- * Called very early, device-tree isn't unflattened
- */
-static int __init p5020_ds_probe(void)
-{
-	unsigned long root = of_get_flat_dt_root();
-#ifdef CONFIG_SMP
-	extern struct smp_ops_t smp_85xx_ops;
-#endif
-
-	if (of_flat_dt_is_compatible(root, "fsl,P5020DS"))
-		return 1;
-
-	/* Check if we're running under the Freescale hypervisor */
-	if (of_flat_dt_is_compatible(root, "fsl,P5020DS-hv")) {
-		ppc_md.init_IRQ = ehv_pic_init;
-		ppc_md.get_irq = ehv_pic_get_irq;
-		ppc_md.restart = fsl_hv_restart;
-		ppc_md.power_off = fsl_hv_halt;
-		ppc_md.halt = fsl_hv_halt;
-#ifdef CONFIG_SMP
-		/*
-		 * Disable the timebase sync operations because we can't write
-		 * to the timebase registers under the hypervisor.
-		  */
-		smp_85xx_ops.give_timebase = NULL;
-		smp_85xx_ops.take_timebase = NULL;
-#endif
-		return 1;
-	}
-
-	return 0;
-}
-
-define_machine(p5020_ds) {
-	.name			= "P5020 DS",
-	.probe			= p5020_ds_probe,
-	.setup_arch		= corenet_ds_setup_arch,
-	.init_IRQ		= corenet_ds_pic_init,
-#ifdef CONFIG_PCI
-	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
-#endif
-	.get_irq		= mpic_get_coreint_irq,
-	.restart		= fsl_rstcr_restart,
-	.calibrate_decr		= generic_calibrate_decr,
-	.progress		= udbg_progress,
-#ifdef CONFIG_PPC64
-	.power_save		= book3e_idle,
-#else
-	.power_save		= e500_idle,
-#endif
-};
-
-machine_arch_initcall(p5020_ds, corenet_ds_publish_devices);
-
-#ifdef CONFIG_SWIOTLB
-machine_arch_initcall(p5020_ds, swiotlb_setup_bus_notifier);
-#endif
diff --git a/arch/powerpc/platforms/85xx/p5040_ds.c b/arch/powerpc/platforms/85xx/p5040_ds.c
deleted file mode 100644
index f70e74cddf97..000000000000
--- a/arch/powerpc/platforms/85xx/p5040_ds.c
+++ /dev/null
@@ -1,84 +0,0 @@
-/*
- * P5040 DS Setup
- *
- * Copyright 2009-2010 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-
-#include <asm/machdep.h>
-#include <asm/udbg.h>
-#include <asm/mpic.h>
-
-#include <linux/of_fdt.h>
-
-#include <sysdev/fsl_soc.h>
-#include <sysdev/fsl_pci.h>
-#include <asm/ehv_pic.h>
-
-#include "corenet_ds.h"
-
-/*
- * Called very early, device-tree isn't unflattened
- */
-static int __init p5040_ds_probe(void)
-{
-	unsigned long root = of_get_flat_dt_root();
-#ifdef CONFIG_SMP
-	extern struct smp_ops_t smp_85xx_ops;
-#endif
-
-	if (of_flat_dt_is_compatible(root, "fsl,P5040DS"))
-		return 1;
-
-	/* Check if we're running under the Freescale hypervisor */
-	if (of_flat_dt_is_compatible(root, "fsl,P5040DS-hv")) {
-		ppc_md.init_IRQ = ehv_pic_init;
-		ppc_md.get_irq = ehv_pic_get_irq;
-		ppc_md.restart = fsl_hv_restart;
-		ppc_md.power_off = fsl_hv_halt;
-		ppc_md.halt = fsl_hv_halt;
-#ifdef CONFIG_SMP
-		/*
-		 * Disable the timebase sync operations because we can't write
-		 * to the timebase registers under the hypervisor.
-		  */
-		smp_85xx_ops.give_timebase = NULL;
-		smp_85xx_ops.take_timebase = NULL;
-#endif
-		return 1;
-	}
-
-	return 0;
-}
-
-define_machine(p5040_ds) {
-	.name			= "P5040 DS",
-	.probe			= p5040_ds_probe,
-	.setup_arch		= corenet_ds_setup_arch,
-	.init_IRQ		= corenet_ds_pic_init,
-#ifdef CONFIG_PCI
-	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
-#endif
-	.get_irq		= mpic_get_coreint_irq,
-	.restart		= fsl_rstcr_restart,
-	.calibrate_decr		= generic_calibrate_decr,
-	.progress		= udbg_progress,
-#ifdef CONFIG_PPC64
-	.power_save		= book3e_idle,
-#else
-	.power_save		= e500_idle,
-#endif
-};
-
-machine_arch_initcall(p5040_ds, corenet_ds_publish_devices);
-
-#ifdef CONFIG_SWIOTLB
-machine_arch_initcall(p5040_ds, swiotlb_setup_bus_notifier);
-#endif
diff --git a/arch/powerpc/platforms/85xx/t4240_qds.c b/arch/powerpc/platforms/85xx/t4240_qds.c
deleted file mode 100644
index 91ead6b1b8af..000000000000
--- a/arch/powerpc/platforms/85xx/t4240_qds.c
+++ /dev/null
@@ -1,93 +0,0 @@
-/*
- * T4240 QDS Setup
- *
- * Maintained by Kumar Gala (see MAINTAINERS for contact information)
- *
- * Copyright 2012 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/kdev_t.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-#include <linux/phy.h>
-
-#include <asm/time.h>
-#include <asm/machdep.h>
-#include <asm/pci-bridge.h>
-#include <mm/mmu_decl.h>
-#include <asm/prom.h>
-#include <asm/udbg.h>
-#include <asm/mpic.h>
-
-#include <linux/of_platform.h>
-#include <sysdev/fsl_soc.h>
-#include <sysdev/fsl_pci.h>
-#include <asm/ehv_pic.h>
-
-#include "corenet_ds.h"
-
-/*
- * Called very early, device-tree isn't unflattened
- */
-static int __init t4240_qds_probe(void)
-{
-	unsigned long root = of_get_flat_dt_root();
-#ifdef CONFIG_SMP
-	extern struct smp_ops_t smp_85xx_ops;
-#endif
-
-	if (of_flat_dt_is_compatible(root, "fsl,T4240QDS"))
-		return 1;
-
-	/* Check if we're running under the Freescale hypervisor */
-	if (of_flat_dt_is_compatible(root, "fsl,T4240QDS-hv")) {
-		ppc_md.init_IRQ = ehv_pic_init;
-		ppc_md.get_irq = ehv_pic_get_irq;
-		ppc_md.restart = fsl_hv_restart;
-		ppc_md.power_off = fsl_hv_halt;
-		ppc_md.halt = fsl_hv_halt;
-#ifdef CONFIG_SMP
-		/*
-		 * Disable the timebase sync operations because we can't write
-		 * to the timebase registers under the hypervisor.
-		  */
-		smp_85xx_ops.give_timebase = NULL;
-		smp_85xx_ops.take_timebase = NULL;
-#endif
-		return 1;
-	}
-
-	return 0;
-}
-
-define_machine(t4240_qds) {
-	.name			= "T4240 QDS",
-	.probe			= t4240_qds_probe,
-	.setup_arch		= corenet_ds_setup_arch,
-	.init_IRQ		= corenet_ds_pic_init,
-#ifdef CONFIG_PCI
-	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
-#endif
-	.get_irq		= mpic_get_coreint_irq,
-	.restart		= fsl_rstcr_restart,
-	.calibrate_decr		= generic_calibrate_decr,
-	.progress		= udbg_progress,
-#ifdef CONFIG_PPC64
-	.power_save		= book3e_idle,
-#else
-	.power_save		= e500_idle,
-#endif
-};
-
-machine_arch_initcall(t4240_qds, corenet_ds_publish_devices);
-
-#ifdef CONFIG_SWIOTLB
-machine_arch_initcall(t4240_qds, swiotlb_setup_bus_notifier);
-#endif
-- 
cgit 


From befe7c123ee4546316bb9aa9952c0e2f7c0d9c48 Mon Sep 17 00:00:00 2001
From: Kevin Hao <haokexin@gmail.com>
Date: Thu, 26 Sep 2013 09:42:27 +0800
Subject: powerpc/85xx: rename the corenet_ds.c to corenet_generic.c

This file is also used by some RDB and QDS boards. So the name seems
not so accurate. Rename it to corenet_generic.c. Also update the
function names in this file according to the change.

Signed-off-by: Kevin Hao <haokexin@gmail.com>
---
 arch/powerpc/platforms/85xx/Makefile          |   2 +-
 arch/powerpc/platforms/85xx/corenet_ds.c      | 182 --------------------------
 arch/powerpc/platforms/85xx/corenet_generic.c | 182 ++++++++++++++++++++++++++
 3 files changed, 183 insertions(+), 183 deletions(-)
 delete mode 100644 arch/powerpc/platforms/85xx/corenet_ds.c
 create mode 100644 arch/powerpc/platforms/85xx/corenet_generic.c

diff --git a/arch/powerpc/platforms/85xx/Makefile b/arch/powerpc/platforms/85xx/Makefile
index a6c281d596e8..dd4c0b59577b 100644
--- a/arch/powerpc/platforms/85xx/Makefile
+++ b/arch/powerpc/platforms/85xx/Makefile
@@ -18,7 +18,7 @@ obj-$(CONFIG_P1010_RDB)   += p1010rdb.o
 obj-$(CONFIG_P1022_DS)    += p1022_ds.o
 obj-$(CONFIG_P1022_RDK)   += p1022_rdk.o
 obj-$(CONFIG_P1023_RDS)   += p1023_rds.o
-obj-$(CONFIG_CORENET_GENERIC)   += corenet_ds.o
+obj-$(CONFIG_CORENET_GENERIC)   += corenet_generic.o
 obj-$(CONFIG_STX_GP3)	  += stx_gp3.o
 obj-$(CONFIG_TQM85xx)	  += tqm85xx.o
 obj-$(CONFIG_SBC8548)     += sbc8548.o
diff --git a/arch/powerpc/platforms/85xx/corenet_ds.c b/arch/powerpc/platforms/85xx/corenet_ds.c
deleted file mode 100644
index 8e0285adeb45..000000000000
--- a/arch/powerpc/platforms/85xx/corenet_ds.c
+++ /dev/null
@@ -1,182 +0,0 @@
-/*
- * Corenet based SoC DS Setup
- *
- * Maintained by Kumar Gala (see MAINTAINERS for contact information)
- *
- * Copyright 2009-2011 Freescale Semiconductor Inc.
- *
- * This program is free software; you can redistribute  it and/or modify it
- * under  the terms of  the GNU General  Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- */
-
-#include <linux/kernel.h>
-#include <linux/pci.h>
-#include <linux/kdev_t.h>
-#include <linux/delay.h>
-#include <linux/interrupt.h>
-
-#include <asm/time.h>
-#include <asm/machdep.h>
-#include <asm/pci-bridge.h>
-#include <asm/ppc-pci.h>
-#include <mm/mmu_decl.h>
-#include <asm/prom.h>
-#include <asm/udbg.h>
-#include <asm/mpic.h>
-#include <asm/ehv_pic.h>
-
-#include <linux/of_platform.h>
-#include <sysdev/fsl_soc.h>
-#include <sysdev/fsl_pci.h>
-#include "smp.h"
-
-void __init corenet_ds_pic_init(void)
-{
-	struct mpic *mpic;
-	unsigned int flags = MPIC_BIG_ENDIAN | MPIC_SINGLE_DEST_CPU |
-		MPIC_NO_RESET;
-
-	if (ppc_md.get_irq == mpic_get_coreint_irq)
-		flags |= MPIC_ENABLE_COREINT;
-
-	mpic = mpic_alloc(NULL, 0, flags, 0, 512, " OpenPIC  ");
-	BUG_ON(mpic == NULL);
-
-	mpic_init(mpic);
-}
-
-/*
- * Setup the architecture
- */
-void __init corenet_ds_setup_arch(void)
-{
-	mpc85xx_smp_init();
-
-	swiotlb_detect_4g();
-
-	pr_info("%s board from Freescale Semiconductor\n", ppc_md.name);
-}
-
-static const struct of_device_id of_device_ids[] = {
-	{
-		.compatible	= "simple-bus"
-	},
-	{
-		.compatible	= "fsl,srio",
-	},
-	{
-		.compatible	= "fsl,p4080-pcie",
-	},
-	{
-		.compatible	= "fsl,qoriq-pcie-v2.2",
-	},
-	{
-		.compatible	= "fsl,qoriq-pcie-v2.3",
-	},
-	{
-		.compatible	= "fsl,qoriq-pcie-v2.4",
-	},
-	{
-		.compatible	= "fsl,qoriq-pcie-v3.0",
-	},
-	/* The following two are for the Freescale hypervisor */
-	{
-		.name		= "hypervisor",
-	},
-	{
-		.name		= "handles",
-	},
-	{}
-};
-
-int __init corenet_ds_publish_devices(void)
-{
-	return of_platform_bus_probe(NULL, of_device_ids, NULL);
-}
-
-static const char * const boards[] __initconst = {
-	"fsl,P2041RDB",
-	"fsl,P3041DS",
-	"fsl,P4080DS",
-	"fsl,P5020DS",
-	"fsl,P5040DS",
-	"fsl,T4240QDS",
-	"fsl,B4860QDS",
-	"fsl,B4420QDS",
-	"fsl,B4220QDS",
-	NULL
-};
-
-static const char * const hv_boards[] __initconst = {
-	"fsl,P2041RDB-hv",
-	"fsl,P3041DS-hv",
-	"fsl,P4080DS-hv",
-	"fsl,P5020DS-hv",
-	"fsl,P5040DS-hv",
-	"fsl,T4240QDS-hv",
-	"fsl,B4860QDS-hv",
-	"fsl,B4420QDS-hv",
-	"fsl,B4220QDS-hv",
-	NULL
-};
-
-/*
- * Called very early, device-tree isn't unflattened
- */
-static int __init corenet_generic_probe(void)
-{
-	unsigned long root = of_get_flat_dt_root();
-#ifdef CONFIG_SMP
-	extern struct smp_ops_t smp_85xx_ops;
-#endif
-
-	if (of_flat_dt_match(root, boards))
-		return 1;
-
-	/* Check if we're running under the Freescale hypervisor */
-	if (of_flat_dt_match(root, hv_boards)) {
-		ppc_md.init_IRQ = ehv_pic_init;
-		ppc_md.get_irq = ehv_pic_get_irq;
-		ppc_md.restart = fsl_hv_restart;
-		ppc_md.power_off = fsl_hv_halt;
-		ppc_md.halt = fsl_hv_halt;
-#ifdef CONFIG_SMP
-		/*
-		 * Disable the timebase sync operations because we can't write
-		 * to the timebase registers under the hypervisor.
-		  */
-		smp_85xx_ops.give_timebase = NULL;
-		smp_85xx_ops.take_timebase = NULL;
-#endif
-		return 1;
-	}
-
-	return 0;
-}
-
-define_machine(corenet_generic) {
-	.name			= "CoreNet Generic",
-	.probe			= corenet_generic_probe,
-	.setup_arch		= corenet_ds_setup_arch,
-	.init_IRQ		= corenet_ds_pic_init,
-#ifdef CONFIG_PCI
-	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
-#endif
-	.get_irq		= mpic_get_coreint_irq,
-	.restart		= fsl_rstcr_restart,
-	.calibrate_decr		= generic_calibrate_decr,
-	.progress		= udbg_progress,
-#ifdef CONFIG_PPC64
-	.power_save		= book3e_idle,
-#else
-	.power_save		= e500_idle,
-#endif
-};
-
-machine_arch_initcall(corenet_generic, corenet_ds_publish_devices);
-
-#ifdef CONFIG_SWIOTLB
-machine_arch_initcall(corenet_generic, swiotlb_setup_bus_notifier);
-#endif
diff --git a/arch/powerpc/platforms/85xx/corenet_generic.c b/arch/powerpc/platforms/85xx/corenet_generic.c
new file mode 100644
index 000000000000..fbd871e69754
--- /dev/null
+++ b/arch/powerpc/platforms/85xx/corenet_generic.c
@@ -0,0 +1,182 @@
+/*
+ * Corenet based SoC DS Setup
+ *
+ * Maintained by Kumar Gala (see MAINTAINERS for contact information)
+ *
+ * Copyright 2009-2011 Freescale Semiconductor Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/kdev_t.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+
+#include <asm/time.h>
+#include <asm/machdep.h>
+#include <asm/pci-bridge.h>
+#include <asm/ppc-pci.h>
+#include <mm/mmu_decl.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <asm/mpic.h>
+#include <asm/ehv_pic.h>
+
+#include <linux/of_platform.h>
+#include <sysdev/fsl_soc.h>
+#include <sysdev/fsl_pci.h>
+#include "smp.h"
+
+void __init corenet_gen_pic_init(void)
+{
+	struct mpic *mpic;
+	unsigned int flags = MPIC_BIG_ENDIAN | MPIC_SINGLE_DEST_CPU |
+		MPIC_NO_RESET;
+
+	if (ppc_md.get_irq == mpic_get_coreint_irq)
+		flags |= MPIC_ENABLE_COREINT;
+
+	mpic = mpic_alloc(NULL, 0, flags, 0, 512, " OpenPIC  ");
+	BUG_ON(mpic == NULL);
+
+	mpic_init(mpic);
+}
+
+/*
+ * Setup the architecture
+ */
+void __init corenet_gen_setup_arch(void)
+{
+	mpc85xx_smp_init();
+
+	swiotlb_detect_4g();
+
+	pr_info("%s board from Freescale Semiconductor\n", ppc_md.name);
+}
+
+static const struct of_device_id of_device_ids[] = {
+	{
+		.compatible	= "simple-bus"
+	},
+	{
+		.compatible	= "fsl,srio",
+	},
+	{
+		.compatible	= "fsl,p4080-pcie",
+	},
+	{
+		.compatible	= "fsl,qoriq-pcie-v2.2",
+	},
+	{
+		.compatible	= "fsl,qoriq-pcie-v2.3",
+	},
+	{
+		.compatible	= "fsl,qoriq-pcie-v2.4",
+	},
+	{
+		.compatible	= "fsl,qoriq-pcie-v3.0",
+	},
+	/* The following two are for the Freescale hypervisor */
+	{
+		.name		= "hypervisor",
+	},
+	{
+		.name		= "handles",
+	},
+	{}
+};
+
+int __init corenet_gen_publish_devices(void)
+{
+	return of_platform_bus_probe(NULL, of_device_ids, NULL);
+}
+
+static const char * const boards[] __initconst = {
+	"fsl,P2041RDB",
+	"fsl,P3041DS",
+	"fsl,P4080DS",
+	"fsl,P5020DS",
+	"fsl,P5040DS",
+	"fsl,T4240QDS",
+	"fsl,B4860QDS",
+	"fsl,B4420QDS",
+	"fsl,B4220QDS",
+	NULL
+};
+
+static const char * const hv_boards[] __initconst = {
+	"fsl,P2041RDB-hv",
+	"fsl,P3041DS-hv",
+	"fsl,P4080DS-hv",
+	"fsl,P5020DS-hv",
+	"fsl,P5040DS-hv",
+	"fsl,T4240QDS-hv",
+	"fsl,B4860QDS-hv",
+	"fsl,B4420QDS-hv",
+	"fsl,B4220QDS-hv",
+	NULL
+};
+
+/*
+ * Called very early, device-tree isn't unflattened
+ */
+static int __init corenet_generic_probe(void)
+{
+	unsigned long root = of_get_flat_dt_root();
+#ifdef CONFIG_SMP
+	extern struct smp_ops_t smp_85xx_ops;
+#endif
+
+	if (of_flat_dt_match(root, boards))
+		return 1;
+
+	/* Check if we're running under the Freescale hypervisor */
+	if (of_flat_dt_match(root, hv_boards)) {
+		ppc_md.init_IRQ = ehv_pic_init;
+		ppc_md.get_irq = ehv_pic_get_irq;
+		ppc_md.restart = fsl_hv_restart;
+		ppc_md.power_off = fsl_hv_halt;
+		ppc_md.halt = fsl_hv_halt;
+#ifdef CONFIG_SMP
+		/*
+		 * Disable the timebase sync operations because we can't write
+		 * to the timebase registers under the hypervisor.
+		  */
+		smp_85xx_ops.give_timebase = NULL;
+		smp_85xx_ops.take_timebase = NULL;
+#endif
+		return 1;
+	}
+
+	return 0;
+}
+
+define_machine(corenet_generic) {
+	.name			= "CoreNet Generic",
+	.probe			= corenet_generic_probe,
+	.setup_arch		= corenet_gen_setup_arch,
+	.init_IRQ		= corenet_gen_pic_init,
+#ifdef CONFIG_PCI
+	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
+#endif
+	.get_irq		= mpic_get_coreint_irq,
+	.restart		= fsl_rstcr_restart,
+	.calibrate_decr		= generic_calibrate_decr,
+	.progress		= udbg_progress,
+#ifdef CONFIG_PPC64
+	.power_save		= book3e_idle,
+#else
+	.power_save		= e500_idle,
+#endif
+};
+
+machine_arch_initcall(corenet_generic, corenet_gen_publish_devices);
+
+#ifdef CONFIG_SWIOTLB
+machine_arch_initcall(corenet_generic, swiotlb_setup_bus_notifier);
+#endif
-- 
cgit 


From 9e0967572e5a0e8c887b2d71192bdad342e8a3dd Mon Sep 17 00:00:00 2001
From: Kevin Hao <haokexin@gmail.com>
Date: Thu, 26 Sep 2013 09:42:28 +0800
Subject: powerpc/85xx: use one kernel option for all the CoreNet_Generic
 boards

Currently all these boards use the same machine struct and also select
the same kernel options, so it seems a bit of redundant to keep one
separate kernel option for each board. Also update the defconfigs
according to this change.

Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/configs/corenet32_smp_defconfig |   6 +-
 arch/powerpc/configs/corenet64_smp_defconfig |   5 +-
 arch/powerpc/configs/ppc64e_defconfig        |   2 +-
 arch/powerpc/platforms/85xx/Kconfig          | 111 +++------------------------
 4 files changed, 13 insertions(+), 111 deletions(-)

diff --git a/arch/powerpc/configs/corenet32_smp_defconfig b/arch/powerpc/configs/corenet32_smp_defconfig
index 71bc43ab649a..bbd794deb6eb 100644
--- a/arch/powerpc/configs/corenet32_smp_defconfig
+++ b/arch/powerpc/configs/corenet32_smp_defconfig
@@ -23,11 +23,7 @@ CONFIG_MODVERSIONS=y
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_MAC_PARTITION=y
-CONFIG_P2041_RDB=y
-CONFIG_P3041_DS=y
-CONFIG_P4080_DS=y
-CONFIG_P5020_DS=y
-CONFIG_P5040_DS=y
+CONFIG_CORENET_GENERIC=y
 CONFIG_HIGHMEM=y
 # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
 CONFIG_BINFMT_MISC=m
diff --git a/arch/powerpc/configs/corenet64_smp_defconfig b/arch/powerpc/configs/corenet64_smp_defconfig
index fa94fb3bb44d..63508ddee11c 100644
--- a/arch/powerpc/configs/corenet64_smp_defconfig
+++ b/arch/powerpc/configs/corenet64_smp_defconfig
@@ -21,10 +21,7 @@ CONFIG_MODVERSIONS=y
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_MAC_PARTITION=y
-CONFIG_B4_QDS=y
-CONFIG_P5020_DS=y
-CONFIG_P5040_DS=y
-CONFIG_T4240_QDS=y
+CONFIG_CORENET_GENERIC=y
 # CONFIG_PPC_OF_BOOT_TRAMPOLINE is not set
 CONFIG_BINFMT_MISC=m
 CONFIG_MATH_EMULATION=y
diff --git a/arch/powerpc/configs/ppc64e_defconfig b/arch/powerpc/configs/ppc64e_defconfig
index 0085dc4642c5..0a6be6dd6003 100644
--- a/arch/powerpc/configs/ppc64e_defconfig
+++ b/arch/powerpc/configs/ppc64e_defconfig
@@ -23,7 +23,7 @@ CONFIG_MODULE_SRCVERSION_ALL=y
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_MAC_PARTITION=y
 CONFIG_EFI_PARTITION=y
-CONFIG_P5020_DS=y
+CONFIG_CORENET_GENERIC=y
 CONFIG_CPU_FREQ=y
 CONFIG_CPU_FREQ_GOV_POWERSAVE=y
 CONFIG_CPU_FREQ_GOV_USERSPACE=y
diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig
index 3bee94398ec3..4d4634958cfb 100644
--- a/arch/powerpc/platforms/85xx/Kconfig
+++ b/arch/powerpc/platforms/85xx/Kconfig
@@ -218,88 +218,16 @@ config GE_IMP3A
 	  This board is a 3U CompactPCI Single Board Computer with a Freescale
 	  P2020 processor.
 
-config P2041_RDB
-	bool "Freescale P2041 RDB"
-	select DEFAULT_UIMAGE
-	select PPC_E500MC
-	select PHYS_64BIT
-	select SWIOTLB
-	select ARCH_REQUIRE_GPIOLIB
-	select GPIO_MPC8XXX
-	select HAS_RAPIDIO
-	select PPC_EPAPR_HV_PIC
-	select CORENET_GENERIC
-	help
-	  This option enables support for the P2041 RDB board
-
-config P3041_DS
-	bool "Freescale P3041 DS"
-	select DEFAULT_UIMAGE
-	select PPC_E500MC
-	select PHYS_64BIT
-	select SWIOTLB
-	select ARCH_REQUIRE_GPIOLIB
-	select GPIO_MPC8XXX
-	select HAS_RAPIDIO
-	select PPC_EPAPR_HV_PIC
-	select CORENET_GENERIC
-	help
-	  This option enables support for the P3041 DS board
-
-config P4080_DS
-	bool "Freescale P4080 DS"
-	select DEFAULT_UIMAGE
-	select PPC_E500MC
-	select PHYS_64BIT
-	select SWIOTLB
-	select ARCH_REQUIRE_GPIOLIB
-	select GPIO_MPC8XXX
-	select HAS_RAPIDIO
-	select PPC_EPAPR_HV_PIC
-	select CORENET_GENERIC
-	help
-	  This option enables support for the P4080 DS board
-
 config SGY_CTS1000
 	tristate "Servergy CTS-1000 support"
 	select GPIOLIB
 	select OF_GPIO
-	depends on P4080_DS
+	depends on CORENET_GENERIC
 	help
 	  Enable this to support functionality in Servergy's CTS-1000 systems.
 
 endif # PPC32
 
-config P5020_DS
-	bool "Freescale P5020 DS"
-	select DEFAULT_UIMAGE
-	select E500
-	select PPC_E500MC
-	select PHYS_64BIT
-	select SWIOTLB
-	select ARCH_REQUIRE_GPIOLIB
-	select GPIO_MPC8XXX
-	select HAS_RAPIDIO
-	select PPC_EPAPR_HV_PIC
-	select CORENET_GENERIC
-	help
-	  This option enables support for the P5020 DS board
-
-config P5040_DS
-	bool "Freescale P5040 DS"
-	select DEFAULT_UIMAGE
-	select E500
-	select PPC_E500MC
-	select PHYS_64BIT
-	select SWIOTLB
-	select ARCH_REQUIRE_GPIOLIB
-	select GPIO_MPC8XXX
-	select HAS_RAPIDIO
-	select PPC_EPAPR_HV_PIC
-	select CORENET_GENERIC
-	help
-	  This option enables support for the P5040 DS board
-
 config PPC_QEMU_E500
 	bool "QEMU generic e500 platform"
 	select DEFAULT_UIMAGE
@@ -315,10 +243,8 @@ config PPC_QEMU_E500
 	  unset based on the emulated CPU (or actual host CPU in the case
 	  of KVM).
 
-if PPC64
-
-config T4240_QDS
-	bool "Freescale T4240 QDS"
+config CORENET_GENERIC
+	bool "Freescale CoreNet Generic"
 	select DEFAULT_UIMAGE
 	select E500
 	select PPC_E500MC
@@ -328,33 +254,16 @@ config T4240_QDS
 	select GPIO_MPC8XXX
 	select HAS_RAPIDIO
 	select PPC_EPAPR_HV_PIC
-	select CORENET_GENERIC
 	help
-	  This option enables support for the T4240 QDS board
+	  This option enables support for the FSL CoreNet based boards.
+	  For 32bit kernel, the following boards are supported:
+	    P2041 RDB, P3041 DS and P4080 DS
+	  For 64bit kernel, the following boards are supported:
+	    T4240 QDS and B4 QDS
+	  The following boards are supported for both 32bit and 64bit kernel:
+	    P5020 DS and P5040 DS
 
-config B4_QDS
-	bool "Freescale B4 QDS"
-	select DEFAULT_UIMAGE
-	select E500
-	select PPC_E500MC
-	select PHYS_64BIT
-	select SWIOTLB
-	select GPIOLIB
-	select ARCH_REQUIRE_GPIOLIB
-	select HAS_RAPIDIO
-	select PPC_EPAPR_HV_PIC
-	select CORENET_GENERIC
-	help
-	  This option enables support for the B4 QDS board
-	  The B4 application development system B4 QDS is a complete
-	  debugging environment intended for engineers developing
-	  applications for the B4.
-
-endif
 endif # FSL_SOC_BOOKE
 
 config TQM85xx
 	bool
-
-config CORENET_GENERIC
-	bool
-- 
cgit 


From 4e591f3c0a618b8230a37bfff64b59e76374f2e5 Mon Sep 17 00:00:00 2001
From: LEROY Christophe <christophe.leroy@c-s.fr>
Date: Tue, 24 Sep 2013 10:18:39 +0200
Subject: powerpc/8xx: Fixing issue with CONFIG_PIN_TLB

Activating CONFIG_PIN_TLB is supposed to pin the IMMR and the first
three 8Mbytes pages.  But the setting of MD_CTR to a pinnable entry was
missing before the pinning of the third 8Mb page.  As the index is
decremented module 28 (MD_RSV4D is set) after every DTLB update, the
third 8Mbytes page was not pinned.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/kernel/head_8xx.S | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
index 1b92a97b1b04..7ee876d2adb5 100644
--- a/arch/powerpc/kernel/head_8xx.S
+++ b/arch/powerpc/kernel/head_8xx.S
@@ -858,6 +858,9 @@ initial_mmu:
 	addis	r11, r11, 0x0080	/* Add 8M */
 	mtspr	SPRN_MD_RPN, r11
 
+	addi	r10, r10, 0x0100
+	mtspr	SPRN_MD_CTR, r10
+
 	addis	r8, r8, 0x0080		/* Add 8M */
 	mtspr	SPRN_MD_EPN, r8
 	mtspr	SPRN_MD_TWC, r9
-- 
cgit 


From 5f2da0f1e8fb074482118f04d0db0614951c3bb8 Mon Sep 17 00:00:00 2001
From: LEROY Christophe <christophe.leroy@c-s.fr>
Date: Fri, 11 Oct 2013 14:56:40 +0200
Subject: powerpc/8xx: Fixing memory init issue with CONFIG_PIN_TLB

Activating CONFIG_PIN_TLB allows access to the 24 first Mbytes of
memory at bootup instead of 8.  It is needed for "big" kernels for
instance when activating CONFIG_LOCKDEP_SUPPORT.  This needs to be
taken into account in init_32 too, otherwise memory allocation soon
fails after startup.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Acked-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/mm/init_32.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c
index d47d3dab4870..cff59f1bec23 100644
--- a/arch/powerpc/mm/init_32.c
+++ b/arch/powerpc/mm/init_32.c
@@ -213,7 +213,12 @@ void setup_initial_memory_limit(phys_addr_t first_memblock_base,
 	 */
 	BUG_ON(first_memblock_base != 0);
 
+#ifdef CONFIG_PIN_TLB
+	/* 8xx can only access 24MB at the moment */
+	memblock_set_current_limit(min_t(u64, first_memblock_size, 0x01800000));
+#else
 	/* 8xx can only access 8MB at the moment */
 	memblock_set_current_limit(min_t(u64, first_memblock_size, 0x00800000));
+#endif
 }
 #endif /* CONFIG_8xx */
-- 
cgit 


From 8d7c0b527fba4891e5d8c74d78e80cac177bce5e Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Sat, 12 Oct 2013 15:13:19 +0800
Subject: powerpc/6xx: add missing iounmap() on error in hlwd_pic_init()

Add the missing iounmap() before return from hlwd_pic_init()
in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/platforms/embedded6xx/hlwd-pic.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
index 3006b5117ec6..6f61e21b3617 100644
--- a/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
+++ b/arch/powerpc/platforms/embedded6xx/hlwd-pic.c
@@ -181,6 +181,7 @@ struct irq_domain *hlwd_pic_init(struct device_node *np)
 					   &hlwd_irq_domain_ops, io_base);
 	if (!irq_domain) {
 		pr_err("failed to allocate irq_domain\n");
+		iounmap(io_base);
 		return NULL;
 	}
 
-- 
cgit 


From d82341b08b8105965267252b51c41fb35fc81156 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Sun, 13 Oct 2013 18:05:38 +0200
Subject: arch/powerpc/platforms/83xx: Remove obsolete cleanup for clientdata

A few new i2c-drivers came into the kernel which clear the clientdata-pointer
on exit or error. This is obsolete meanwhile, the core will do it.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c b/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c
index 7bc315822935..fd71cfdf2380 100644
--- a/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c
+++ b/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c
@@ -204,7 +204,6 @@ static int mcu_remove(struct i2c_client *client)
 	ret = mcu_gpiochip_remove(mcu);
 	if (ret)
 		return ret;
-	i2c_set_clientdata(client, NULL);
 	kfree(mcu);
 	return 0;
 }
-- 
cgit 


From fd1348d098b5d0f633c869b50a74cfcbeb9834f5 Mon Sep 17 00:00:00 2001
From: Zhao Qiang <B45475@freescale.com>
Date: Mon, 14 Oct 2013 14:46:13 +0800
Subject: powerpc/p1010rdb: add P1010RDB-PB platform support

The P1010RDB-PB is similar to P1010RDB(P1010RDB-PA).
So, P1010RDB-PB use the same platform file as P1010RDB.
Then Add support for P1010RDB-PB platform.

Signed-off-by: Zhao Qiang <B45475@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/platforms/85xx/p1010rdb.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/platforms/85xx/p1010rdb.c b/arch/powerpc/platforms/85xx/p1010rdb.c
index 0252961392d5..d6a3dd311494 100644
--- a/arch/powerpc/platforms/85xx/p1010rdb.c
+++ b/arch/powerpc/platforms/85xx/p1010rdb.c
@@ -66,6 +66,8 @@ static int __init p1010_rdb_probe(void)
 
 	if (of_flat_dt_is_compatible(root, "fsl,P1010RDB"))
 		return 1;
+	if (of_flat_dt_is_compatible(root, "fsl,P1010RDB-PB"))
+		return 1;
 	return 0;
 }
 
-- 
cgit 


From dde8e3ee6b37fa33690604302bebfe7b576c3802 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 25 Oct 2013 17:30:24 +0800
Subject: powerpc/mv643xx_eth: fix return check in
 mv64x60_eth_register_shared_pdev()

In case of error, the function platform_device_register_simple() returns
RR_PTR() and never returns NULL. The NULL test in the return value check
should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/sysdev/mv64x60_dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/sysdev/mv64x60_dev.c b/arch/powerpc/sysdev/mv64x60_dev.c
index 4a25c26f0bf4..a3a8fad8537d 100644
--- a/arch/powerpc/sysdev/mv64x60_dev.c
+++ b/arch/powerpc/sysdev/mv64x60_dev.c
@@ -228,7 +228,7 @@ static struct platform_device * __init mv64x60_eth_register_shared_pdev(
 
 	if (id == 0) {
 		pdev = platform_device_register_simple("orion-mdio", -1, &r[1], 1);
-		if (!pdev)
+		if (IS_ERR(pdev))
 			return pdev;
 	}
 
-- 
cgit 


From b60c5a7a82cdfec2221263ce259faa4a36696163 Mon Sep 17 00:00:00 2001
From: Christian Kujau <lists@nerdbynature.de>
Date: Mon, 28 Oct 2013 05:51:36 -0700
Subject: powerpc/6xx: CONFIG_MCU_MPC8349EMITX cannot be a module

During "make ppc6xx_defconfig" the following happens:

  HOSTCC  scripts/basic/fixdep
  GEN     /usr/local/src/tmp/lnx/Makefile
  HOSTCC  scripts/kconfig/conf.o
  HOSTCC  scripts/kconfig/zconf.tab.o
  HOSTLD  scripts/kconfig/conf
arch/powerpc/configs/ppc6xx_defconfig:74:warning: symbol value 'm' invalid for MCU_MPC8349EMITX

Setting CONFIG_MCU_MPC8349EMITX=y in ppc6xx_defconfig makes the warning
go away. This too has been reported by Geert Uytterhoeven a long time ago:
https://lkml.org/lkml/2011/11/13/11  - I only came across this because I
needed a "clean" defconfig for this Powerbook G5.

Signed-off-by: Christian Kujau <lists@nerdbynature.de>
[scottwood@freescale.com: cleaned up commit message slightly]
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/configs/ppc6xx_defconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/configs/ppc6xx_defconfig b/arch/powerpc/configs/ppc6xx_defconfig
index 20ebfaf7234b..c2353bf059fd 100644
--- a/arch/powerpc/configs/ppc6xx_defconfig
+++ b/arch/powerpc/configs/ppc6xx_defconfig
@@ -71,7 +71,7 @@ CONFIG_QUICC_ENGINE=y
 CONFIG_QE_GPIO=y
 CONFIG_PPC_BESTCOMM=y
 CONFIG_GPIO_MPC8XXX=y
-CONFIG_MCU_MPC8349EMITX=m
+CONFIG_MCU_MPC8349EMITX=y
 CONFIG_HIGHMEM=y
 CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
-- 
cgit 


From a3821b2af185b64e3382c45fbdaa2cbc91ce14b8 Mon Sep 17 00:00:00 2001
From: Scott Wood <scottwood@freescale.com>
Date: Mon, 28 Oct 2013 22:07:59 -0500
Subject: powerpc: Fix PPC_EMULATED_STATS build break with sync patch

Commit 9863c28a2af90a56c088f5f6288d7f6d2c923c14 ("powerpc: Emulate sync
instruction variants") introduced a build breakage with
CONFIG_PPC_EMULATED_STATS enabled.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Cc: Kumar Gala <galak@kernel.org>
Cc: James Yang <James.Yang@freescale.com>
---
---
 arch/powerpc/include/asm/emulated_ops.h | 1 +
 arch/powerpc/kernel/traps.c             | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/powerpc/include/asm/emulated_ops.h b/arch/powerpc/include/asm/emulated_ops.h
index 5a8b82aa7241..4358e3002f35 100644
--- a/arch/powerpc/include/asm/emulated_ops.h
+++ b/arch/powerpc/include/asm/emulated_ops.h
@@ -43,6 +43,7 @@ extern struct ppc_emulated {
 	struct ppc_emulated_entry popcntb;
 	struct ppc_emulated_entry spe;
 	struct ppc_emulated_entry string;
+	struct ppc_emulated_entry sync;
 	struct ppc_emulated_entry unaligned;
 #ifdef CONFIG_MATH_EMULATION
 	struct ppc_emulated_entry math;
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index ad20dcfaedd0..62c3dd8c69f2 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -1820,6 +1820,7 @@ struct ppc_emulated ppc_emulated = {
 	WARN_EMULATED_SETUP(popcntb),
 	WARN_EMULATED_SETUP(spe),
 	WARN_EMULATED_SETUP(string),
+	WARN_EMULATED_SETUP(sync),
 	WARN_EMULATED_SETUP(unaligned),
 #ifdef CONFIG_MATH_EMULATION
 	WARN_EMULATED_SETUP(math),
-- 
cgit 


From 588bd5918baca940a52802045f3b388358dc6917 Mon Sep 17 00:00:00 2001
From: Anton Vorontsov <anton@enomsg.org>
Date: Sun, 27 Oct 2013 22:20:59 -0700
Subject: power_supply: Fix documentation for TEMP_*ALERT* properties

All temperatures should be in tenth degrees Celsius.

Reported-by: Jonghwa Lee <jonghwa3.lee@samsung.com>
Cc: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
---
 Documentation/power/power_supply_class.txt | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Documentation/power/power_supply_class.txt b/Documentation/power/power_supply_class.txt
index 3f10b39b0346..89a8816990ff 100644
--- a/Documentation/power/power_supply_class.txt
+++ b/Documentation/power/power_supply_class.txt
@@ -135,11 +135,11 @@ CAPACITY_LEVEL - capacity level. This corresponds to
 POWER_SUPPLY_CAPACITY_LEVEL_*.
 
 TEMP - temperature of the power supply.
-TEMP_ALERT_MIN - minimum battery temperature alert value in milli centigrade.
-TEMP_ALERT_MAX - maximum battery temperature alert value in milli centigrade.
+TEMP_ALERT_MIN - minimum battery temperature alert.
+TEMP_ALERT_MAX - maximum battery temperature alert.
 TEMP_AMBIENT - ambient temperature.
-TEMP_AMBIENT_ALERT_MIN - minimum ambient temperature alert value in milli centigrade.
-TEMP_AMBIENT_ALERT_MAX - maximum ambient temperature alert value in milli centigrade.
+TEMP_AMBIENT_ALERT_MIN - minimum ambient temperature alert.
+TEMP_AMBIENT_ALERT_MAX - maximum ambient temperature alert.
 
 TIME_TO_EMPTY - seconds left for battery to be considered empty (i.e.
 while battery powers a load)
-- 
cgit 


From 2613af0ed18a11d5c566a81f9a6510b73180660a Mon Sep 17 00:00:00 2001
From: Michael Dalton <mwdalton@google.com>
Date: Mon, 28 Oct 2013 15:44:18 -0700
Subject: virtio_net: migrate mergeable rx buffers to page frag allocators

The virtio_net driver's mergeable receive buffer allocator
uses 4KB packet buffers. For MTU-sized traffic, SKB truesize
is > 4KB but only ~1500 bytes of the buffer is used to store
packet data, reducing the effective TCP window size
substantially. This patch addresses the performance concerns
with mergeable receive buffers by allocating MTU-sized packet
buffers using page frag allocators. If more than MAX_SKB_FRAGS
buffers are needed, the SKB frag_list is used.

Signed-off-by: Michael Dalton <mwdalton@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/virtio_net.c | 164 ++++++++++++++++++++++++++++++-----------------
 1 file changed, 106 insertions(+), 58 deletions(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 9fbdfcd1e1a0..113ee93dbb2e 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -124,6 +124,11 @@ struct virtnet_info {
 	/* Lock for config space updates */
 	struct mutex config_lock;
 
+	/* Page_frag for GFP_KERNEL packet buffer allocation when we run
+	 * low on memory.
+	 */
+	struct page_frag alloc_frag;
+
 	/* Does the affinity hint is set for virtqueues? */
 	bool affinity_hint_set;
 
@@ -217,33 +222,18 @@ static void skb_xmit_done(struct virtqueue *vq)
 	netif_wake_subqueue(vi->dev, vq2txq(vq));
 }
 
-static void set_skb_frag(struct sk_buff *skb, struct page *page,
-			 unsigned int offset, unsigned int *len)
-{
-	int size = min((unsigned)PAGE_SIZE - offset, *len);
-	int i = skb_shinfo(skb)->nr_frags;
-
-	__skb_fill_page_desc(skb, i, page, offset, size);
-
-	skb->data_len += size;
-	skb->len += size;
-	skb->truesize += PAGE_SIZE;
-	skb_shinfo(skb)->nr_frags++;
-	skb_shinfo(skb)->tx_flags |= SKBTX_SHARED_FRAG;
-	*len -= size;
-}
-
 /* Called from bottom half context */
 static struct sk_buff *page_to_skb(struct receive_queue *rq,
-				   struct page *page, unsigned int len)
+				   struct page *page, unsigned int offset,
+				   unsigned int len, unsigned int truesize)
 {
 	struct virtnet_info *vi = rq->vq->vdev->priv;
 	struct sk_buff *skb;
 	struct skb_vnet_hdr *hdr;
-	unsigned int copy, hdr_len, offset;
+	unsigned int copy, hdr_len, hdr_padded_len;
 	char *p;
 
-	p = page_address(page);
+	p = page_address(page) + offset;
 
 	/* copy small packet so we can reuse these pages for small data */
 	skb = netdev_alloc_skb_ip_align(vi->dev, GOOD_COPY_LEN);
@@ -254,16 +244,17 @@ static struct sk_buff *page_to_skb(struct receive_queue *rq,
 
 	if (vi->mergeable_rx_bufs) {
 		hdr_len = sizeof hdr->mhdr;
-		offset = hdr_len;
+		hdr_padded_len = sizeof hdr->mhdr;
 	} else {
 		hdr_len = sizeof hdr->hdr;
-		offset = sizeof(struct padded_vnet_hdr);
+		hdr_padded_len = sizeof(struct padded_vnet_hdr);
 	}
 
 	memcpy(hdr, p, hdr_len);
 
 	len -= hdr_len;
-	p += offset;
+	offset += hdr_padded_len;
+	p += hdr_padded_len;
 
 	copy = len;
 	if (copy > skb_tailroom(skb))
@@ -273,6 +264,14 @@ static struct sk_buff *page_to_skb(struct receive_queue *rq,
 	len -= copy;
 	offset += copy;
 
+	if (vi->mergeable_rx_bufs) {
+		if (len)
+			skb_add_rx_frag(skb, 0, page, offset, len, truesize);
+		else
+			put_page(page);
+		return skb;
+	}
+
 	/*
 	 * Verify that we can indeed put this data into a skb.
 	 * This is here to handle cases when the device erroneously
@@ -284,9 +283,12 @@ static struct sk_buff *page_to_skb(struct receive_queue *rq,
 		dev_kfree_skb(skb);
 		return NULL;
 	}
-
+	BUG_ON(offset >= PAGE_SIZE);
 	while (len) {
-		set_skb_frag(skb, page, offset, &len);
+		unsigned int frag_size = min((unsigned)PAGE_SIZE - offset, len);
+		skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page, offset,
+				frag_size, truesize);
+		len -= frag_size;
 		page = (struct page *)page->private;
 		offset = 0;
 	}
@@ -297,33 +299,52 @@ static struct sk_buff *page_to_skb(struct receive_queue *rq,
 	return skb;
 }
 
-static int receive_mergeable(struct receive_queue *rq, struct sk_buff *skb)
+static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb)
 {
-	struct skb_vnet_hdr *hdr = skb_vnet_hdr(skb);
+	struct skb_vnet_hdr *hdr = skb_vnet_hdr(head_skb);
+	struct sk_buff *curr_skb = head_skb;
+	char *buf;
 	struct page *page;
-	int num_buf, i, len;
+	int num_buf, len;
 
 	num_buf = hdr->mhdr.num_buffers;
 	while (--num_buf) {
-		i = skb_shinfo(skb)->nr_frags;
-		if (i >= MAX_SKB_FRAGS) {
-			pr_debug("%s: packet too long\n", skb->dev->name);
-			skb->dev->stats.rx_length_errors++;
-			return -EINVAL;
-		}
-		page = virtqueue_get_buf(rq->vq, &len);
-		if (!page) {
+		int num_skb_frags = skb_shinfo(curr_skb)->nr_frags;
+		buf = virtqueue_get_buf(rq->vq, &len);
+		if (unlikely(!buf)) {
 			pr_debug("%s: rx error: %d buffers missing\n",
-				 skb->dev->name, hdr->mhdr.num_buffers);
-			skb->dev->stats.rx_length_errors++;
+				 head_skb->dev->name, hdr->mhdr.num_buffers);
+			head_skb->dev->stats.rx_length_errors++;
 			return -EINVAL;
 		}
-
-		if (len > PAGE_SIZE)
-			len = PAGE_SIZE;
-
-		set_skb_frag(skb, page, 0, &len);
-
+		if (unlikely(len > MAX_PACKET_LEN)) {
+			pr_debug("%s: rx error: merge buffer too long\n",
+				 head_skb->dev->name);
+			len = MAX_PACKET_LEN;
+		}
+		if (unlikely(num_skb_frags == MAX_SKB_FRAGS)) {
+			struct sk_buff *nskb = alloc_skb(0, GFP_ATOMIC);
+			if (unlikely(!nskb)) {
+				head_skb->dev->stats.rx_dropped++;
+				return -ENOMEM;
+			}
+			if (curr_skb == head_skb)
+				skb_shinfo(curr_skb)->frag_list = nskb;
+			else
+				curr_skb->next = nskb;
+			curr_skb = nskb;
+			head_skb->truesize += nskb->truesize;
+			num_skb_frags = 0;
+		}
+		if (curr_skb != head_skb) {
+			head_skb->data_len += len;
+			head_skb->len += len;
+			head_skb->truesize += MAX_PACKET_LEN;
+		}
+		page = virt_to_head_page(buf);
+		skb_add_rx_frag(curr_skb, num_skb_frags, page,
+				buf - (char *)page_address(page), len,
+				MAX_PACKET_LEN);
 		--rq->num;
 	}
 	return 0;
@@ -341,8 +362,10 @@ static void receive_buf(struct receive_queue *rq, void *buf, unsigned int len)
 	if (unlikely(len < sizeof(struct virtio_net_hdr) + ETH_HLEN)) {
 		pr_debug("%s: short packet %i\n", dev->name, len);
 		dev->stats.rx_length_errors++;
-		if (vi->mergeable_rx_bufs || vi->big_packets)
+		if (vi->big_packets)
 			give_pages(rq, buf);
+		else if (vi->mergeable_rx_bufs)
+			put_page(virt_to_head_page(buf));
 		else
 			dev_kfree_skb(buf);
 		return;
@@ -352,19 +375,28 @@ static void receive_buf(struct receive_queue *rq, void *buf, unsigned int len)
 		skb = buf;
 		len -= sizeof(struct virtio_net_hdr);
 		skb_trim(skb, len);
+	} else if (vi->mergeable_rx_bufs) {
+		struct page *page = virt_to_head_page(buf);
+		skb = page_to_skb(rq, page,
+				  (char *)buf - (char *)page_address(page),
+				  len, MAX_PACKET_LEN);
+		if (unlikely(!skb)) {
+			dev->stats.rx_dropped++;
+			put_page(page);
+			return;
+		}
+		if (receive_mergeable(rq, skb)) {
+			dev_kfree_skb(skb);
+			return;
+		}
 	} else {
 		page = buf;
-		skb = page_to_skb(rq, page, len);
+		skb = page_to_skb(rq, page, 0, len, PAGE_SIZE);
 		if (unlikely(!skb)) {
 			dev->stats.rx_dropped++;
 			give_pages(rq, page);
 			return;
 		}
-		if (vi->mergeable_rx_bufs)
-			if (receive_mergeable(rq, skb)) {
-				dev_kfree_skb(skb);
-				return;
-			}
 	}
 
 	hdr = skb_vnet_hdr(skb);
@@ -501,18 +533,28 @@ static int add_recvbuf_big(struct receive_queue *rq, gfp_t gfp)
 
 static int add_recvbuf_mergeable(struct receive_queue *rq, gfp_t gfp)
 {
-	struct page *page;
+	struct virtnet_info *vi = rq->vq->vdev->priv;
+	char *buf = NULL;
 	int err;
 
-	page = get_a_page(rq, gfp);
-	if (!page)
+	if (gfp & __GFP_WAIT) {
+		if (skb_page_frag_refill(MAX_PACKET_LEN, &vi->alloc_frag,
+					 gfp)) {
+			buf = (char *)page_address(vi->alloc_frag.page) +
+			      vi->alloc_frag.offset;
+			get_page(vi->alloc_frag.page);
+			vi->alloc_frag.offset += MAX_PACKET_LEN;
+		}
+	} else {
+		buf = netdev_alloc_frag(MAX_PACKET_LEN);
+	}
+	if (!buf)
 		return -ENOMEM;
 
-	sg_init_one(rq->sg, page_address(page), PAGE_SIZE);
-
-	err = virtqueue_add_inbuf(rq->vq, rq->sg, 1, page, gfp);
+	sg_init_one(rq->sg, buf, MAX_PACKET_LEN);
+	err = virtqueue_add_inbuf(rq->vq, rq->sg, 1, buf, gfp);
 	if (err < 0)
-		give_pages(rq, page);
+		put_page(virt_to_head_page(buf));
 
 	return err;
 }
@@ -1343,8 +1385,10 @@ static void free_unused_bufs(struct virtnet_info *vi)
 		struct virtqueue *vq = vi->rq[i].vq;
 
 		while ((buf = virtqueue_detach_unused_buf(vq)) != NULL) {
-			if (vi->mergeable_rx_bufs || vi->big_packets)
+			if (vi->big_packets)
 				give_pages(&vi->rq[i], buf);
+			else if (vi->mergeable_rx_bufs)
+				put_page(virt_to_head_page(buf));
 			else
 				dev_kfree_skb(buf);
 			--vi->rq[i].num;
@@ -1650,6 +1694,8 @@ free_recv_bufs:
 free_vqs:
 	cancel_delayed_work_sync(&vi->refill);
 	virtnet_del_vqs(vi);
+	if (vi->alloc_frag.page)
+		put_page(vi->alloc_frag.page);
 free_index:
 	free_percpu(vi->vq_index);
 free_stats:
@@ -1685,6 +1731,8 @@ static void virtnet_remove(struct virtio_device *vdev)
 	unregister_netdev(vi->dev);
 
 	remove_vq_common(vi);
+	if (vi->alloc_frag.page)
+		put_page(vi->alloc_frag.page);
 
 	flush_work(&vi->config_work);
 
-- 
cgit 


From 0d08c42cf9a71530fef5ebcfe368f38f2dd0476f Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 25 Oct 2013 17:26:17 -0700
Subject: tcp: gso: fix truesize tracking

commit 6ff50cd55545 ("tcp: gso: do not generate out of order packets")
had an heuristic that can trigger a warning in skb_try_coalesce(),
because skb->truesize of the gso segments were exactly set to mss.

This breaks the requirement that

skb->truesize >= skb->len + truesizeof(struct sk_buff);

It can trivially be reproduced by :

ifconfig lo mtu 1500
ethtool -K lo tso off
netperf

As the skbs are looped into the TCP networking stack, skb_try_coalesce()
warns us of these skb under-estimating their truesize.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/tcp_offload.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c
index 3a7525e6c086..533c58a5cfb7 100644
--- a/net/ipv4/tcp_offload.c
+++ b/net/ipv4/tcp_offload.c
@@ -18,6 +18,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
 				netdev_features_t features)
 {
 	struct sk_buff *segs = ERR_PTR(-EINVAL);
+	unsigned int sum_truesize = 0;
 	struct tcphdr *th;
 	unsigned int thlen;
 	unsigned int seq;
@@ -102,13 +103,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
 		if (copy_destructor) {
 			skb->destructor = gso_skb->destructor;
 			skb->sk = gso_skb->sk;
-			/* {tcp|sock}_wfree() use exact truesize accounting :
-			 * sum(skb->truesize) MUST be exactly be gso_skb->truesize
-			 * So we account mss bytes of 'true size' for each segment.
-			 * The last segment will contain the remaining.
-			 */
-			skb->truesize = mss;
-			gso_skb->truesize -= mss;
+			sum_truesize += skb->truesize;
 		}
 		skb = skb->next;
 		th = tcp_hdr(skb);
@@ -125,7 +120,9 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb,
 	if (copy_destructor) {
 		swap(gso_skb->sk, skb->sk);
 		swap(gso_skb->destructor, skb->destructor);
-		swap(gso_skb->truesize, skb->truesize);
+		sum_truesize += skb->truesize;
+		atomic_add(sum_truesize - gso_skb->truesize,
+			   &skb->sk->sk_wmem_alloc);
 	}
 
 	delta = htonl(oldlen + (skb_tail_pointer(skb) -
-- 
cgit 


From e3ed4eaef4932fd3867465784d11a36deaa6d22c Mon Sep 17 00:00:00 2001
From: Dmitry Kravkov <dmitry@broadcom.com>
Date: Sun, 27 Oct 2013 13:07:00 +0200
Subject: bnx2x: prevent FW assert on low mem during unload

Buffers for FW statistics were allocated at an inappropriate time; In a machine
where the driver encounters problems allocating all of its queues, the driver
would still create FW requests for the statistics of the non-existing queues.
The wrong order of memory allocation could lead to zeroed statistics messages
being sent, leading to fw assert in case function 0 was down.

This changes the order of allocations, guaranteeing that statistic requests will
only be generated for actual queues.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 4ab4c89c60cd..74d6486fccfd 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -2545,10 +2545,6 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 		}
 	}
 
-	/* Allocated memory for FW statistics  */
-	if (bnx2x_alloc_fw_stats_mem(bp))
-		LOAD_ERROR_EXIT(bp, load_error0);
-
 	/* need to be done after alloc mem, since it's self adjusting to amount
 	 * of memory available for RSS queues
 	 */
@@ -2558,6 +2554,10 @@ int bnx2x_nic_load(struct bnx2x *bp, int load_mode)
 		LOAD_ERROR_EXIT(bp, load_error0);
 	}
 
+	/* Allocated memory for FW statistics  */
+	if (bnx2x_alloc_fw_stats_mem(bp))
+		LOAD_ERROR_EXIT(bp, load_error0);
+
 	/* request pf to initialize status blocks */
 	if (IS_VF(bp)) {
 		rc = bnx2x_vfpf_init(bp);
@@ -2812,8 +2812,8 @@ load_error1:
 	if (IS_PF(bp))
 		bnx2x_clear_pf_load(bp);
 load_error0:
-	bnx2x_free_fp_mem(bp);
 	bnx2x_free_fw_stats_mem(bp);
+	bnx2x_free_fp_mem(bp);
 	bnx2x_free_mem(bp);
 
 	return rc;
-- 
cgit 


From 826cb7b43b5bd8995f84edeacbbf569946a58f7c Mon Sep 17 00:00:00 2001
From: Ariel Elior <ariele@broadcom.com>
Date: Sun, 27 Oct 2013 13:07:01 +0200
Subject: bnx2x: Disable VF access on PF removal

When the bnx2x driver is rmmoded, if VFs of a given PF will be assigned
to a VM then that PF will be unable to call `pci_disable_sriov()'.

If for that same PF there would also exist unassigned VFs in the hypervisor,
the result will be that after the removal there will still be virtual PCI
functions on the hypervisor.
If the bnx2x module were to be re-inserted, the result will be that the VFs
on the hypervisor will be re-probed directly following the PF's probe, even
though that in regular loading flow sriov is only enabled once PF is loaded.
The probed VF will then try to access its bar, causing a PCI error as the HW
is not in a state enabling such a request.

This patch adds a missing disablement procedure to the PF's removal, one that
sets registers viewable to the VF to indicate that the VFs have no permission
to access the bar, thus resulting in probe errors instead of PCI errors.

Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
index bf08ad68b405..5e07efb6ec13 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sriov.c
@@ -2018,6 +2018,8 @@ failed:
 
 void bnx2x_iov_remove_one(struct bnx2x *bp)
 {
+	int vf_idx;
+
 	/* if SRIOV is not enabled there's nothing to do */
 	if (!IS_SRIOV(bp))
 		return;
@@ -2026,6 +2028,18 @@ void bnx2x_iov_remove_one(struct bnx2x *bp)
 	pci_disable_sriov(bp->pdev);
 	DP(BNX2X_MSG_IOV, "sriov disabled\n");
 
+	/* disable access to all VFs */
+	for (vf_idx = 0; vf_idx < bp->vfdb->sriov.total; vf_idx++) {
+		bnx2x_pretend_func(bp,
+				   HW_VF_HANDLE(bp,
+						bp->vfdb->sriov.first_vf_in_pf +
+						vf_idx));
+		DP(BNX2X_MSG_IOV, "disabling internal access for vf %d\n",
+		   bp->vfdb->sriov.first_vf_in_pf + vf_idx);
+		bnx2x_vf_enable_internal(bp, 0);
+		bnx2x_pretend_func(bp, BP_ABS_FUNC(bp));
+	}
+
 	/* free vf database */
 	__bnx2x_iov_free_vfdb(bp);
 }
@@ -3197,7 +3211,7 @@ int bnx2x_enable_sriov(struct bnx2x *bp)
 	 * the "acquire" messages to appear on the VF PF channel.
 	 */
 	DP(BNX2X_MSG_IOV, "about to call enable sriov\n");
-	pci_disable_sriov(bp->pdev);
+	bnx2x_disable_sriov(bp);
 	rc = pci_enable_sriov(bp->pdev, req_vfs);
 	if (rc) {
 		BNX2X_ERR("pci_enable_sriov failed with %d\n", rc);
-- 
cgit 


From 262e827fe745642589450ae241b7afd3912c3f25 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Sun, 27 Oct 2013 21:02:39 +0000
Subject: cxgb3: Fix length calculation in write_ofld_wr() on 32-bit
 architectures

The length calculation here is now invalid on 32-bit architectures,
since sk_buff::tail is a pointer and sk_buff::transport_header is
an integer offset:

drivers/net/ethernet/chelsio/cxgb3/sge.c: In function 'write_ofld_wr':
drivers/net/ethernet/chelsio/cxgb3/sge.c:1603:9: warning: passing argument 4 of 'make_sgl' makes integer from pointer without a cast [enabled by default]
         adap->pdev);
         ^
drivers/net/ethernet/chelsio/cxgb3/sge.c:964:28: note: expected 'unsigned int' but argument is of type 'sk_buff_data_t'
 static inline unsigned int make_sgl(const struct sk_buff *skb,
                            ^

Use the appropriate skb accessor functions.

Compile-tested only.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Fixes: 1a37e412a022 ('net: Use 16bits for *_headers fields of struct skbuff')
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/chelsio/cxgb3/sge.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/chelsio/cxgb3/sge.c b/drivers/net/ethernet/chelsio/cxgb3/sge.c
index 9c89dc8fe105..632b318eb38a 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/sge.c
@@ -1599,7 +1599,8 @@ static void write_ofld_wr(struct adapter *adap, struct sk_buff *skb,
 	flits = skb_transport_offset(skb) / 8;
 	sgp = ndesc == 1 ? (struct sg_ent *)&d->flit[flits] : sgl;
 	sgl_flits = make_sgl(skb, sgp, skb_transport_header(skb),
-			     skb->tail - skb->transport_header,
+			     skb_tail_pointer(skb) -
+			     skb_transport_header(skb),
 			     adap->pdev);
 	if (need_skb_unmap()) {
 		setup_deferred_unmapping(skb, adap->pdev, sgp, sgl_flits);
-- 
cgit 


From daba287b299ec7a2c61ae3a714920e90e8396ad5 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Sun, 27 Oct 2013 17:29:11 +0100
Subject: ipv4: fix DO and PROBE pmtu mode regarding local fragmentation with
 UFO/CORK

UFO as well as UDP_CORK do not respect IP_PMTUDISC_DO and
IP_PMTUDISC_PROBE well enough.

UFO enabled packet delivery just appends all frags to the cork and hands
it over to the network card. So we just deliver non-DF udp fragments
(DF-flag may get overwritten by hardware or virtual UFO enabled
interface).

UDP_CORK does enqueue the data until the cork is disengaged. At this
point it sets the correct IP_DF and local_df flags and hands it over to
ip_fragment which in this case will generate an icmp error which gets
appended to the error socket queue. This is not reflected in the syscall
error (of course, if UFO is enabled this also won't happen).

Improve this by checking the pmtudisc flags before appending data to the
socket and if we still can fit all data in one packet when IP_PMTUDISC_DO
or IP_PMTUDISC_PROBE is set, only then proceed.

We use (mtu-fragheaderlen) to check for the maximum length because we
ensure not to generate a fragment and non-fragmented data does not need
to have its length aligned on 64 bit boundaries. Also the passed in
ip_options are already aligned correctly.

Maybe, we can relax some other checks around ip_fragment. This needs
more research.

Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/ip_output.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 8fbac7de1e1b..51be64e18e32 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -810,7 +810,7 @@ static int __ip_append_data(struct sock *sk,
 	int copy;
 	int err;
 	int offset = 0;
-	unsigned int maxfraglen, fragheaderlen;
+	unsigned int maxfraglen, fragheaderlen, maxnonfragsize;
 	int csummode = CHECKSUM_NONE;
 	struct rtable *rt = (struct rtable *)cork->dst;
 
@@ -823,8 +823,10 @@ static int __ip_append_data(struct sock *sk,
 
 	fragheaderlen = sizeof(struct iphdr) + (opt ? opt->optlen : 0);
 	maxfraglen = ((mtu - fragheaderlen) & ~7) + fragheaderlen;
+	maxnonfragsize = (inet->pmtudisc >= IP_PMTUDISC_DO) ?
+			 mtu : 0xFFFF;
 
-	if (cork->length + length > 0xFFFF - fragheaderlen) {
+	if (cork->length + length > maxnonfragsize - fragheaderlen) {
 		ip_local_error(sk, EMSGSIZE, fl4->daddr, inet->inet_dport,
 			       mtu-exthdrlen);
 		return -EMSGSIZE;
@@ -1122,7 +1124,7 @@ ssize_t	ip_append_page(struct sock *sk, struct flowi4 *fl4, struct page *page,
 	int mtu;
 	int len;
 	int err;
-	unsigned int maxfraglen, fragheaderlen, fraggap;
+	unsigned int maxfraglen, fragheaderlen, fraggap, maxnonfragsize;
 
 	if (inet->hdrincl)
 		return -EPERM;
@@ -1146,8 +1148,10 @@ ssize_t	ip_append_page(struct sock *sk, struct flowi4 *fl4, struct page *page,
 
 	fragheaderlen = sizeof(struct iphdr) + (opt ? opt->optlen : 0);
 	maxfraglen = ((mtu - fragheaderlen) & ~7) + fragheaderlen;
+	maxnonfragsize = (inet->pmtudisc >= IP_PMTUDISC_DO) ?
+			 mtu : 0xFFFF;
 
-	if (cork->length + size > 0xFFFF - fragheaderlen) {
+	if (cork->length + size > maxnonfragsize - fragheaderlen) {
 		ip_local_error(sk, EMSGSIZE, fl4->daddr, inet->inet_dport, mtu);
 		return -EMSGSIZE;
 	}
-- 
cgit 


From 39deb2c7db420b4bc19c65ee3ceb1cd34ee07756 Mon Sep 17 00:00:00 2001
From: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Date: Mon, 28 Oct 2013 14:01:48 +0800
Subject: vxlan: silence one build warning
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

drivers/net/vxlan.c: In function ‘vxlan_sock_add’:
drivers/net/vxlan.c:2298:11: warning: ‘sock’ may be used uninitialized in this function [-Wmaybe-uninitialized]
drivers/net/vxlan.c:2275:17: note: ‘sock’ was declared here
  LD      drivers/net/built-in.o

Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/vxlan.c | 31 ++++++++++++++-----------------
 1 file changed, 14 insertions(+), 17 deletions(-)

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index da8479479d01..75a3a740ce19 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -2180,7 +2180,7 @@ static void vxlan_del_work(struct work_struct *work)
  * could be used for both IPv4 and IPv6 communications, but
  * users may set bindv6only=1.
  */
-static int create_v6_sock(struct net *net, __be16 port, struct socket **psock)
+static struct socket *create_v6_sock(struct net *net, __be16 port)
 {
 	struct sock *sk;
 	struct socket *sock;
@@ -2193,7 +2193,7 @@ static int create_v6_sock(struct net *net, __be16 port, struct socket **psock)
 	rc = sock_create_kern(AF_INET6, SOCK_DGRAM, IPPROTO_UDP, &sock);
 	if (rc < 0) {
 		pr_debug("UDPv6 socket create failed\n");
-		return rc;
+		return ERR_PTR(rc);
 	}
 
 	/* Put in proper namespace */
@@ -2208,28 +2208,27 @@ static int create_v6_sock(struct net *net, __be16 port, struct socket **psock)
 		pr_debug("bind for UDPv6 socket %pI6:%u (%d)\n",
 			 &vxlan_addr.sin6_addr, ntohs(vxlan_addr.sin6_port), rc);
 		sk_release_kernel(sk);
-		return rc;
+		return ERR_PTR(rc);
 	}
 	/* At this point, IPv6 module should have been loaded in
 	 * sock_create_kern().
 	 */
 	BUG_ON(!ipv6_stub);
 
-	*psock = sock;
 	/* Disable multicast loopback */
 	inet_sk(sk)->mc_loop = 0;
-	return 0;
+	return sock;
 }
 
 #else
 
-static int create_v6_sock(struct net *net, __be16 port, struct socket **psock)
+static struct socket *create_v6_sock(struct net *net, __be16 port)
 {
-		return -EPFNOSUPPORT;
+		return ERR_PTR(-EPFNOSUPPORT);
 }
 #endif
 
-static int create_v4_sock(struct net *net, __be16 port, struct socket **psock)
+static struct socket *create_v4_sock(struct net *net, __be16 port)
 {
 	struct sock *sk;
 	struct socket *sock;
@@ -2244,7 +2243,7 @@ static int create_v4_sock(struct net *net, __be16 port, struct socket **psock)
 	rc = sock_create_kern(AF_INET, SOCK_DGRAM, IPPROTO_UDP, &sock);
 	if (rc < 0) {
 		pr_debug("UDP socket create failed\n");
-		return rc;
+		return ERR_PTR(rc);
 	}
 
 	/* Put in proper namespace */
@@ -2257,13 +2256,12 @@ static int create_v4_sock(struct net *net, __be16 port, struct socket **psock)
 		pr_debug("bind for UDP socket %pI4:%u (%d)\n",
 			 &vxlan_addr.sin_addr, ntohs(vxlan_addr.sin_port), rc);
 		sk_release_kernel(sk);
-		return rc;
+		return ERR_PTR(rc);
 	}
 
-	*psock = sock;
 	/* Disable multicast loopback */
 	inet_sk(sk)->mc_loop = 0;
-	return 0;
+	return sock;
 }
 
 /* Create new listen socket if needed */
@@ -2274,7 +2272,6 @@ static struct vxlan_sock *vxlan_socket_create(struct net *net, __be16 port,
 	struct vxlan_sock *vs;
 	struct socket *sock;
 	struct sock *sk;
-	int rc = 0;
 	unsigned int h;
 
 	vs = kmalloc(sizeof(*vs), GFP_KERNEL);
@@ -2287,12 +2284,12 @@ static struct vxlan_sock *vxlan_socket_create(struct net *net, __be16 port,
 	INIT_WORK(&vs->del_work, vxlan_del_work);
 
 	if (ipv6)
-		rc = create_v6_sock(net, port, &sock);
+		sock = create_v6_sock(net, port);
 	else
-		rc = create_v4_sock(net, port, &sock);
-	if (rc < 0) {
+		sock = create_v4_sock(net, port);
+	if (IS_ERR(sock)) {
 		kfree(vs);
-		return ERR_PTR(rc);
+		return ERR_PTR(PTR_ERR(sock));
 	}
 
 	vs->sock = sock;
-- 
cgit 


From c4e819d16c0f46fbdd3706adbd990b3b292d726c Mon Sep 17 00:00:00 2001
From: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Date: Mon, 28 Oct 2013 14:01:49 +0800
Subject: net, datagram: fix the incorrect comment in zerocopy_sg_from_iovec()

Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/datagram.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/datagram.c b/net/core/datagram.c
index af814e764206..a16ed7bbe376 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -577,7 +577,7 @@ EXPORT_SYMBOL(skb_copy_datagram_from_iovec);
 /**
  *	zerocopy_sg_from_iovec - Build a zerocopy datagram from an iovec
  *	@skb: buffer to copy
- *	@from: io vector to copy to
+ *	@from: io vector to copy from
  *	@offset: offset in the io vector to start copying from
  *	@count: amount of vectors to copy to buffer from
  *
-- 
cgit 


From ab1a2d7773b23dbbb863fd63fcf83b67cf361e34 Mon Sep 17 00:00:00 2001
From: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Date: Mon, 28 Oct 2013 14:01:50 +0800
Subject: net, iovec: fix the incorrect comment in memcpy_fromiovecend()

Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/iovec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/iovec.c b/net/core/iovec.c
index b77eeecc0011..4cdb7c48dad6 100644
--- a/net/core/iovec.c
+++ b/net/core/iovec.c
@@ -100,7 +100,7 @@ int memcpy_toiovecend(const struct iovec *iov, unsigned char *kdata,
 EXPORT_SYMBOL(memcpy_toiovecend);
 
 /*
- *	Copy iovec from kernel. Returns -EFAULT on error.
+ *	Copy iovec to kernel. Returns -EFAULT on error.
  */
 
 int memcpy_fromiovecend(unsigned char *kdata, const struct iovec *iov,
-- 
cgit 


From cdfb97bc010d9e9d994eb68f2cbac3a8ada26104 Mon Sep 17 00:00:00 2001
From: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Date: Mon, 28 Oct 2013 16:15:50 +0800
Subject: net, mc: fix the incorrect comments in two mc-related functions

Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/dev_addr_lists.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/core/dev_addr_lists.c b/net/core/dev_addr_lists.c
index 6cda4e2c2132..ec40a849fc42 100644
--- a/net/core/dev_addr_lists.c
+++ b/net/core/dev_addr_lists.c
@@ -752,7 +752,7 @@ int dev_mc_del_global(struct net_device *dev, const unsigned char *addr)
 EXPORT_SYMBOL(dev_mc_del_global);
 
 /**
- *	dev_mc_sync - Synchronize device's unicast list to another device
+ *	dev_mc_sync - Synchronize device's multicast list to another device
  *	@to: destination device
  *	@from: source device
  *
@@ -780,7 +780,7 @@ int dev_mc_sync(struct net_device *to, struct net_device *from)
 EXPORT_SYMBOL(dev_mc_sync);
 
 /**
- *	dev_mc_sync_multiple - Synchronize device's unicast list to another
+ *	dev_mc_sync_multiple - Synchronize device's multicast list to another
  *	device, but allow for multiple calls to sync to multiple devices.
  *	@to: destination device
  *	@from: source device
-- 
cgit 


From 059dfa6a93b779516321e5112db9d7621b1367ba Mon Sep 17 00:00:00 2001
From: Wei Liu <wei.liu2@citrix.com>
Date: Mon, 28 Oct 2013 12:07:57 +0000
Subject: xen-netback: use jiffies_64 value to calculate credit timeout

time_after_eq() only works if the delta is < MAX_ULONG/2.

For a 32bit Dom0, if netfront sends packets at a very low rate, the time
between subsequent calls to tx_credit_exceeded() may exceed MAX_ULONG/2
and the test for timer_after_eq() will be incorrect. Credit will not be
replenished and the guest may become unable to send packets (e.g., if
prior to the long gap, all credit was exhausted).

Use jiffies_64 variant to mitigate this problem for 32bit Dom0.

Suggested-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Jason Luan <jianhai.luan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/xen-netback/common.h    |  1 +
 drivers/net/xen-netback/interface.c |  3 +--
 drivers/net/xen-netback/netback.c   | 10 +++++-----
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h
index 5715318d6bab..400fea1de080 100644
--- a/drivers/net/xen-netback/common.h
+++ b/drivers/net/xen-netback/common.h
@@ -163,6 +163,7 @@ struct xenvif {
 	unsigned long   credit_usec;
 	unsigned long   remaining_credit;
 	struct timer_list credit_timeout;
+	u64 credit_window_start;
 
 	/* Statistics */
 	unsigned long rx_gso_checksum_fixup;
diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index 01bb854c7f62..459935a6bfae 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -312,8 +312,7 @@ struct xenvif *xenvif_alloc(struct device *parent, domid_t domid,
 	vif->credit_bytes = vif->remaining_credit = ~0UL;
 	vif->credit_usec  = 0UL;
 	init_timer(&vif->credit_timeout);
-	/* Initialize 'expires' now: it's used to track the credit window. */
-	vif->credit_timeout.expires = jiffies;
+	vif->credit_window_start = get_jiffies_64();
 
 	dev->netdev_ops	= &xenvif_netdev_ops;
 	dev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO;
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index f3e591c611de..900da4b243ad 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -1185,9 +1185,8 @@ out:
 
 static bool tx_credit_exceeded(struct xenvif *vif, unsigned size)
 {
-	unsigned long now = jiffies;
-	unsigned long next_credit =
-		vif->credit_timeout.expires +
+	u64 now = get_jiffies_64();
+	u64 next_credit = vif->credit_window_start +
 		msecs_to_jiffies(vif->credit_usec / 1000);
 
 	/* Timer could already be pending in rare cases. */
@@ -1195,8 +1194,8 @@ static bool tx_credit_exceeded(struct xenvif *vif, unsigned size)
 		return true;
 
 	/* Passed the point where we can replenish credit? */
-	if (time_after_eq(now, next_credit)) {
-		vif->credit_timeout.expires = now;
+	if (time_after_eq64(now, next_credit)) {
+		vif->credit_window_start = now;
 		tx_add_credit(vif);
 	}
 
@@ -1208,6 +1207,7 @@ static bool tx_credit_exceeded(struct xenvif *vif, unsigned size)
 			tx_credit_callback;
 		mod_timer(&vif->credit_timeout,
 			  next_credit);
+		vif->credit_window_start = next_credit;
 
 		return true;
 	}
-- 
cgit 


From 123b0d1ba0a98ef12550d82b79ccb8d89090f871 Mon Sep 17 00:00:00 2001
From: Mathias Krause <mathias.krause@secunet.com>
Date: Fri, 18 Oct 2013 12:09:04 +0200
Subject: net: esp{4,6}: remove padlen from struct esp_data

The padlen member of struct esp_data is always zero. Get rid of it.

Signed-off-by: Mathias Krause <mathias.krause@secunet.com>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
 include/net/esp.h | 3 ---
 net/ipv4/esp4.c   | 9 +--------
 net/ipv6/esp6.c   | 9 +--------
 3 files changed, 2 insertions(+), 19 deletions(-)

diff --git a/include/net/esp.h b/include/net/esp.h
index 1356dda00d22..706b740d7057 100644
--- a/include/net/esp.h
+++ b/include/net/esp.h
@@ -6,9 +6,6 @@
 struct crypto_aead;
 
 struct esp_data {
-	/* 0..255 */
-	int padlen;
-
 	/* Confidentiality & Integrity */
 	struct crypto_aead *aead;
 };
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 109ee89f123e..8b5386a6cb88 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -154,8 +154,6 @@ static int esp_output(struct xfrm_state *x, struct sk_buff *skb)
 	}
 	blksize = ALIGN(crypto_aead_blocksize(aead), 4);
 	clen = ALIGN(skb->len + 2 + tfclen, blksize);
-	if (esp->padlen)
-		clen = ALIGN(clen, esp->padlen);
 	plen = clen - skb->len - tfclen;
 
 	err = skb_cow_data(skb, tfclen + plen + alen, &trailer);
@@ -461,7 +459,6 @@ static u32 esp4_get_mtu(struct xfrm_state *x, int mtu)
 {
 	struct esp_data *esp = x->data;
 	u32 blksize = ALIGN(crypto_aead_blocksize(esp->aead), 4);
-	u32 align = max_t(u32, blksize, esp->padlen);
 	unsigned int net_adj;
 
 	switch (x->props.mode) {
@@ -477,7 +474,7 @@ static u32 esp4_get_mtu(struct xfrm_state *x, int mtu)
 	}
 
 	return ((mtu - x->props.header_len - crypto_aead_authsize(esp->aead) -
-		 net_adj) & ~(align - 1)) + net_adj - 2;
+		 net_adj) & ~(blksize - 1)) + net_adj - 2;
 }
 
 static void esp4_err(struct sk_buff *skb, u32 info)
@@ -659,8 +656,6 @@ static int esp_init_state(struct xfrm_state *x)
 
 	aead = esp->aead;
 
-	esp->padlen = 0;
-
 	x->props.header_len = sizeof(struct ip_esp_hdr) +
 			      crypto_aead_ivsize(aead);
 	if (x->props.mode == XFRM_MODE_TUNNEL)
@@ -683,8 +678,6 @@ static int esp_init_state(struct xfrm_state *x)
 	}
 
 	align = ALIGN(crypto_aead_blocksize(aead), 4);
-	if (esp->padlen)
-		align = max_t(u32, align, esp->padlen);
 	x->props.trailer_len = align + 1 + crypto_aead_authsize(esp->aead);
 
 error:
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index d3618a78fcac..0073cd096984 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -181,8 +181,6 @@ static int esp6_output(struct xfrm_state *x, struct sk_buff *skb)
 	}
 	blksize = ALIGN(crypto_aead_blocksize(aead), 4);
 	clen = ALIGN(skb->len + 2 + tfclen, blksize);
-	if (esp->padlen)
-		clen = ALIGN(clen, esp->padlen);
 	plen = clen - skb->len - tfclen;
 
 	err = skb_cow_data(skb, tfclen + plen + alen, &trailer);
@@ -416,7 +414,6 @@ static u32 esp6_get_mtu(struct xfrm_state *x, int mtu)
 {
 	struct esp_data *esp = x->data;
 	u32 blksize = ALIGN(crypto_aead_blocksize(esp->aead), 4);
-	u32 align = max_t(u32, blksize, esp->padlen);
 	unsigned int net_adj;
 
 	if (x->props.mode != XFRM_MODE_TUNNEL)
@@ -425,7 +422,7 @@ static u32 esp6_get_mtu(struct xfrm_state *x, int mtu)
 		net_adj = 0;
 
 	return ((mtu - x->props.header_len - crypto_aead_authsize(esp->aead) -
-		 net_adj) & ~(align - 1)) + net_adj - 2;
+		 net_adj) & ~(blksize - 1)) + net_adj - 2;
 }
 
 static void esp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
@@ -606,8 +603,6 @@ static int esp6_init_state(struct xfrm_state *x)
 
 	aead = esp->aead;
 
-	esp->padlen = 0;
-
 	x->props.header_len = sizeof(struct ip_esp_hdr) +
 			      crypto_aead_ivsize(aead);
 	switch (x->props.mode) {
@@ -626,8 +621,6 @@ static int esp6_init_state(struct xfrm_state *x)
 	}
 
 	align = ALIGN(crypto_aead_blocksize(aead), 4);
-	if (esp->padlen)
-		align = max_t(u32, align, esp->padlen);
 	x->props.trailer_len = align + 1 + crypto_aead_authsize(esp->aead);
 
 error:
-- 
cgit 


From 1c5ad13f7c2b2afe30e43858d04fff979dc9d243 Mon Sep 17 00:00:00 2001
From: Mathias Krause <mathias.krause@secunet.com>
Date: Fri, 18 Oct 2013 12:09:05 +0200
Subject: net: esp{4,6}: get rid of struct esp_data

struct esp_data consists of a single pointer, vanishing the need for it
to be a structure. Fold the pointer into 'data' direcly, removing one
level of pointer indirection.

Signed-off-by: Mathias Krause <mathias.krause@secunet.com>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
 include/net/esp.h |  7 -------
 net/ipv4/esp4.c   | 40 ++++++++++++++--------------------------
 net/ipv6/esp6.c   | 39 ++++++++++++++-------------------------
 3 files changed, 28 insertions(+), 58 deletions(-)

diff --git a/include/net/esp.h b/include/net/esp.h
index 706b740d7057..c92213c38312 100644
--- a/include/net/esp.h
+++ b/include/net/esp.h
@@ -3,13 +3,6 @@
 
 #include <linux/skbuff.h>
 
-struct crypto_aead;
-
-struct esp_data {
-	/* Confidentiality & Integrity */
-	struct crypto_aead *aead;
-};
-
 void *pskb_put(struct sk_buff *skb, struct sk_buff *tail, int len);
 
 struct ip_esp_hdr;
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c
index 8b5386a6cb88..7785b28061ac 100644
--- a/net/ipv4/esp4.c
+++ b/net/ipv4/esp4.c
@@ -121,7 +121,6 @@ static int esp_output(struct xfrm_state *x, struct sk_buff *skb)
 	struct aead_givcrypt_request *req;
 	struct scatterlist *sg;
 	struct scatterlist *asg;
-	struct esp_data *esp;
 	struct sk_buff *trailer;
 	void *tmp;
 	u8 *iv;
@@ -139,8 +138,7 @@ static int esp_output(struct xfrm_state *x, struct sk_buff *skb)
 
 	/* skb is pure payload to encrypt */
 
-	esp = x->data;
-	aead = esp->aead;
+	aead = x->data;
 	alen = crypto_aead_authsize(aead);
 
 	tfclen = 0;
@@ -278,8 +276,7 @@ static int esp_input_done2(struct sk_buff *skb, int err)
 {
 	const struct iphdr *iph;
 	struct xfrm_state *x = xfrm_input_state(skb);
-	struct esp_data *esp = x->data;
-	struct crypto_aead *aead = esp->aead;
+	struct crypto_aead *aead = x->data;
 	int alen = crypto_aead_authsize(aead);
 	int hlen = sizeof(struct ip_esp_hdr) + crypto_aead_ivsize(aead);
 	int elen = skb->len - hlen;
@@ -374,8 +371,7 @@ static void esp_input_done(struct crypto_async_request *base, int err)
 static int esp_input(struct xfrm_state *x, struct sk_buff *skb)
 {
 	struct ip_esp_hdr *esph;
-	struct esp_data *esp = x->data;
-	struct crypto_aead *aead = esp->aead;
+	struct crypto_aead *aead = x->data;
 	struct aead_request *req;
 	struct sk_buff *trailer;
 	int elen = skb->len - sizeof(*esph) - crypto_aead_ivsize(aead);
@@ -457,8 +453,8 @@ out:
 
 static u32 esp4_get_mtu(struct xfrm_state *x, int mtu)
 {
-	struct esp_data *esp = x->data;
-	u32 blksize = ALIGN(crypto_aead_blocksize(esp->aead), 4);
+	struct crypto_aead *aead = x->data;
+	u32 blksize = ALIGN(crypto_aead_blocksize(aead), 4);
 	unsigned int net_adj;
 
 	switch (x->props.mode) {
@@ -473,7 +469,7 @@ static u32 esp4_get_mtu(struct xfrm_state *x, int mtu)
 		BUG();
 	}
 
-	return ((mtu - x->props.header_len - crypto_aead_authsize(esp->aead) -
+	return ((mtu - x->props.header_len - crypto_aead_authsize(aead) -
 		 net_adj) & ~(blksize - 1)) + net_adj - 2;
 }
 
@@ -508,18 +504,16 @@ static void esp4_err(struct sk_buff *skb, u32 info)
 
 static void esp_destroy(struct xfrm_state *x)
 {
-	struct esp_data *esp = x->data;
+	struct crypto_aead *aead = x->data;
 
-	if (!esp)
+	if (!aead)
 		return;
 
-	crypto_free_aead(esp->aead);
-	kfree(esp);
+	crypto_free_aead(aead);
 }
 
 static int esp_init_aead(struct xfrm_state *x)
 {
-	struct esp_data *esp = x->data;
 	struct crypto_aead *aead;
 	int err;
 
@@ -528,7 +522,7 @@ static int esp_init_aead(struct xfrm_state *x)
 	if (IS_ERR(aead))
 		goto error;
 
-	esp->aead = aead;
+	x->data = aead;
 
 	err = crypto_aead_setkey(aead, x->aead->alg_key,
 				 (x->aead->alg_key_len + 7) / 8);
@@ -545,7 +539,6 @@ error:
 
 static int esp_init_authenc(struct xfrm_state *x)
 {
-	struct esp_data *esp = x->data;
 	struct crypto_aead *aead;
 	struct crypto_authenc_key_param *param;
 	struct rtattr *rta;
@@ -580,7 +573,7 @@ static int esp_init_authenc(struct xfrm_state *x)
 	if (IS_ERR(aead))
 		goto error;
 
-	esp->aead = aead;
+	x->data = aead;
 
 	keylen = (x->aalg ? (x->aalg->alg_key_len + 7) / 8 : 0) +
 		 (x->ealg->alg_key_len + 7) / 8 + RTA_SPACE(sizeof(*param));
@@ -635,16 +628,11 @@ error:
 
 static int esp_init_state(struct xfrm_state *x)
 {
-	struct esp_data *esp;
 	struct crypto_aead *aead;
 	u32 align;
 	int err;
 
-	esp = kzalloc(sizeof(*esp), GFP_KERNEL);
-	if (esp == NULL)
-		return -ENOMEM;
-
-	x->data = esp;
+	x->data = NULL;
 
 	if (x->aead)
 		err = esp_init_aead(x);
@@ -654,7 +642,7 @@ static int esp_init_state(struct xfrm_state *x)
 	if (err)
 		goto error;
 
-	aead = esp->aead;
+	aead = x->data;
 
 	x->props.header_len = sizeof(struct ip_esp_hdr) +
 			      crypto_aead_ivsize(aead);
@@ -678,7 +666,7 @@ static int esp_init_state(struct xfrm_state *x)
 	}
 
 	align = ALIGN(crypto_aead_blocksize(aead), 4);
-	x->props.trailer_len = align + 1 + crypto_aead_authsize(esp->aead);
+	x->props.trailer_len = align + 1 + crypto_aead_authsize(aead);
 
 error:
 	return err;
diff --git a/net/ipv6/esp6.c b/net/ipv6/esp6.c
index 0073cd096984..87eb79e65e49 100644
--- a/net/ipv6/esp6.c
+++ b/net/ipv6/esp6.c
@@ -164,10 +164,9 @@ static int esp6_output(struct xfrm_state *x, struct sk_buff *skb)
 	u8 *iv;
 	u8 *tail;
 	__be32 *seqhi;
-	struct esp_data *esp = x->data;
 
 	/* skb is pure payload to encrypt */
-	aead = esp->aead;
+	aead = x->data;
 	alen = crypto_aead_authsize(aead);
 
 	tfclen = 0;
@@ -269,8 +268,7 @@ error:
 static int esp_input_done2(struct sk_buff *skb, int err)
 {
 	struct xfrm_state *x = xfrm_input_state(skb);
-	struct esp_data *esp = x->data;
-	struct crypto_aead *aead = esp->aead;
+	struct crypto_aead *aead = x->data;
 	int alen = crypto_aead_authsize(aead);
 	int hlen = sizeof(struct ip_esp_hdr) + crypto_aead_ivsize(aead);
 	int elen = skb->len - hlen;
@@ -323,8 +321,7 @@ static void esp_input_done(struct crypto_async_request *base, int err)
 static int esp6_input(struct xfrm_state *x, struct sk_buff *skb)
 {
 	struct ip_esp_hdr *esph;
-	struct esp_data *esp = x->data;
-	struct crypto_aead *aead = esp->aead;
+	struct crypto_aead *aead = x->data;
 	struct aead_request *req;
 	struct sk_buff *trailer;
 	int elen = skb->len - sizeof(*esph) - crypto_aead_ivsize(aead);
@@ -412,8 +409,8 @@ out:
 
 static u32 esp6_get_mtu(struct xfrm_state *x, int mtu)
 {
-	struct esp_data *esp = x->data;
-	u32 blksize = ALIGN(crypto_aead_blocksize(esp->aead), 4);
+	struct crypto_aead *aead = x->data;
+	u32 blksize = ALIGN(crypto_aead_blocksize(aead), 4);
 	unsigned int net_adj;
 
 	if (x->props.mode != XFRM_MODE_TUNNEL)
@@ -421,7 +418,7 @@ static u32 esp6_get_mtu(struct xfrm_state *x, int mtu)
 	else
 		net_adj = 0;
 
-	return ((mtu - x->props.header_len - crypto_aead_authsize(esp->aead) -
+	return ((mtu - x->props.header_len - crypto_aead_authsize(aead) -
 		 net_adj) & ~(blksize - 1)) + net_adj - 2;
 }
 
@@ -452,18 +449,16 @@ static void esp6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 
 static void esp6_destroy(struct xfrm_state *x)
 {
-	struct esp_data *esp = x->data;
+	struct crypto_aead *aead = x->data;
 
-	if (!esp)
+	if (!aead)
 		return;
 
-	crypto_free_aead(esp->aead);
-	kfree(esp);
+	crypto_free_aead(aead);
 }
 
 static int esp_init_aead(struct xfrm_state *x)
 {
-	struct esp_data *esp = x->data;
 	struct crypto_aead *aead;
 	int err;
 
@@ -472,7 +467,7 @@ static int esp_init_aead(struct xfrm_state *x)
 	if (IS_ERR(aead))
 		goto error;
 
-	esp->aead = aead;
+	x->data = aead;
 
 	err = crypto_aead_setkey(aead, x->aead->alg_key,
 				 (x->aead->alg_key_len + 7) / 8);
@@ -489,7 +484,6 @@ error:
 
 static int esp_init_authenc(struct xfrm_state *x)
 {
-	struct esp_data *esp = x->data;
 	struct crypto_aead *aead;
 	struct crypto_authenc_key_param *param;
 	struct rtattr *rta;
@@ -524,7 +518,7 @@ static int esp_init_authenc(struct xfrm_state *x)
 	if (IS_ERR(aead))
 		goto error;
 
-	esp->aead = aead;
+	x->data = aead;
 
 	keylen = (x->aalg ? (x->aalg->alg_key_len + 7) / 8 : 0) +
 		 (x->ealg->alg_key_len + 7) / 8 + RTA_SPACE(sizeof(*param));
@@ -579,7 +573,6 @@ error:
 
 static int esp6_init_state(struct xfrm_state *x)
 {
-	struct esp_data *esp;
 	struct crypto_aead *aead;
 	u32 align;
 	int err;
@@ -587,11 +580,7 @@ static int esp6_init_state(struct xfrm_state *x)
 	if (x->encap)
 		return -EINVAL;
 
-	esp = kzalloc(sizeof(*esp), GFP_KERNEL);
-	if (esp == NULL)
-		return -ENOMEM;
-
-	x->data = esp;
+	x->data = NULL;
 
 	if (x->aead)
 		err = esp_init_aead(x);
@@ -601,7 +590,7 @@ static int esp6_init_state(struct xfrm_state *x)
 	if (err)
 		goto error;
 
-	aead = esp->aead;
+	aead = x->data;
 
 	x->props.header_len = sizeof(struct ip_esp_hdr) +
 			      crypto_aead_ivsize(aead);
@@ -621,7 +610,7 @@ static int esp6_init_state(struct xfrm_state *x)
 	}
 
 	align = ALIGN(crypto_aead_blocksize(aead), 4);
-	x->props.trailer_len = align + 1 + crypto_aead_authsize(esp->aead);
+	x->props.trailer_len = align + 1 + crypto_aead_authsize(aead);
 
 error:
 	return err;
-- 
cgit 


From 3b218e3a21ccec183472015f1d7168400b187a58 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Tue, 29 Oct 2013 15:43:01 +0900
Subject: f2fs: introduce CONFIG_F2FS_CHECK_FS for BUG_ON control

This config will support an option to remove so many BUG_ONs that degrade
the performance potentially.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/Kconfig | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/fs/f2fs/Kconfig b/fs/f2fs/Kconfig
index e06e0995e00f..214fe1054fce 100644
--- a/fs/f2fs/Kconfig
+++ b/fs/f2fs/Kconfig
@@ -63,3 +63,11 @@ config F2FS_FS_SECURITY
 	  the extended attribute support in advance.
 
 	  If you are not using a security module, say N.
+
+config F2FS_CHECK_FS
+	bool "F2FS consistency checking feature"
+	depends on F2FS_FS
+	help
+	  Enables BUG_ONs which check the file system consistency in runtime.
+
+	  If you want to improve the performance, say N.
-- 
cgit 


From 5d56b6718a0f4e5c58cdd3cb6b7a472d7c5671b9 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Tue, 29 Oct 2013 15:14:54 +0900
Subject: f2fs: add an option to avoid unnecessary BUG_ONs

If you want to remove unnecessary BUG_ONs, you can just turn off F2FS_CHECK_FS
in your kernel config.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/checkpoint.c | 10 +++++-----
 fs/f2fs/data.c       |  4 ++--
 fs/f2fs/dir.c        |  2 +-
 fs/f2fs/f2fs.h       | 22 ++++++++++++++--------
 fs/f2fs/file.c       |  2 +-
 fs/f2fs/inode.c      |  2 +-
 fs/f2fs/node.c       | 42 +++++++++++++++++++++---------------------
 fs/f2fs/recovery.c   | 10 +++++-----
 fs/f2fs/segment.c    | 16 ++++++++--------
 fs/f2fs/segment.h    | 10 ++++++----
 fs/f2fs/xattr.c      |  2 +-
 11 files changed, 65 insertions(+), 57 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 6526f5010621..d430157ffe60 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -142,8 +142,8 @@ long sync_meta_pages(struct f2fs_sb_info *sbi, enum page_type type,
 		for (i = 0; i < nr_pages; i++) {
 			struct page *page = pvec.pages[i];
 			lock_page(page);
-			BUG_ON(page->mapping != mapping);
-			BUG_ON(!PageDirty(page));
+			f2fs_bug_on(page->mapping != mapping);
+			f2fs_bug_on(!PageDirty(page));
 			clear_page_dirty_for_io(page);
 			if (f2fs_write_meta_page(page, &wbc)) {
 				unlock_page(page);
@@ -208,7 +208,7 @@ int acquire_orphan_inode(struct f2fs_sb_info *sbi)
 void release_orphan_inode(struct f2fs_sb_info *sbi)
 {
 	mutex_lock(&sbi->orphan_inode_mutex);
-	BUG_ON(sbi->n_orphans == 0);
+	f2fs_bug_on(sbi->n_orphans == 0);
 	sbi->n_orphans--;
 	mutex_unlock(&sbi->orphan_inode_mutex);
 }
@@ -252,7 +252,7 @@ void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
 		if (orphan->ino == ino) {
 			list_del(&orphan->list);
 			kmem_cache_free(orphan_entry_slab, orphan);
-			BUG_ON(sbi->n_orphans == 0);
+			f2fs_bug_on(sbi->n_orphans == 0);
 			sbi->n_orphans--;
 			break;
 		}
@@ -263,7 +263,7 @@ void remove_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
 static void recover_orphan_inode(struct f2fs_sb_info *sbi, nid_t ino)
 {
 	struct inode *inode = f2fs_iget(sbi->sb, ino);
-	BUG_ON(IS_ERR(inode));
+	f2fs_bug_on(IS_ERR(inode));
 	clear_nlink(inode);
 
 	/* truncate all the data during iput */
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index c8887d847dcf..aa3438c571fa 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -110,7 +110,7 @@ void update_extent_cache(block_t blk_addr, struct dnode_of_data *dn)
 	pgoff_t fofs, start_fofs, end_fofs;
 	block_t start_blkaddr, end_blkaddr;
 
-	BUG_ON(blk_addr == NEW_ADDR);
+	f2fs_bug_on(blk_addr == NEW_ADDR);
 	fofs = start_bidx_of_node(ofs_of_node(dn->node_page), fi) +
 							dn->ofs_in_node;
 
@@ -436,7 +436,7 @@ static int get_data_block_ro(struct inode *inode, sector_t iblock,
 	}
 
 	/* It does not support data allocation */
-	BUG_ON(create);
+	f2fs_bug_on(create);
 
 	if (dn.data_blkaddr != NEW_ADDR && dn.data_blkaddr != NULL_ADDR) {
 		int i;
diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index c9d53fc510c5..594fc1bb64ef 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -139,7 +139,7 @@ static struct f2fs_dir_entry *find_in_level(struct inode *dir,
 	bool room = false;
 	int max_slots = 0;
 
-	BUG_ON(level > MAX_DIR_HASH_DEPTH);
+	f2fs_bug_on(level > MAX_DIR_HASH_DEPTH);
 
 	nbucket = dir_buckets(level);
 	nblock = bucket_blocks(level);
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index a61cc5f84638..6aaefdbaaac0 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -20,6 +20,12 @@
 #include <linux/kobject.h>
 #include <linux/sched.h>
 
+#ifdef CONFIG_F2FS_CHECK_FS
+#define f2fs_bug_on(condition)	BUG_ON(condition)
+#else
+#define f2fs_bug_on(condition)
+#endif
+
 /*
  * For mount options
  */
@@ -584,8 +590,8 @@ static inline int dec_valid_block_count(struct f2fs_sb_info *sbi,
 						blkcnt_t count)
 {
 	spin_lock(&sbi->stat_lock);
-	BUG_ON(sbi->total_valid_block_count < (block_t) count);
-	BUG_ON(inode->i_blocks < count);
+	f2fs_bug_on(sbi->total_valid_block_count < (block_t) count);
+	f2fs_bug_on(inode->i_blocks < count);
 	inode->i_blocks -= count;
 	sbi->total_valid_block_count -= (block_t)count;
 	spin_unlock(&sbi->stat_lock);
@@ -717,9 +723,9 @@ static inline void dec_valid_node_count(struct f2fs_sb_info *sbi,
 {
 	spin_lock(&sbi->stat_lock);
 
-	BUG_ON(sbi->total_valid_block_count < count);
-	BUG_ON(sbi->total_valid_node_count < count);
-	BUG_ON(inode->i_blocks < count);
+	f2fs_bug_on(sbi->total_valid_block_count < count);
+	f2fs_bug_on(sbi->total_valid_node_count < count);
+	f2fs_bug_on(inode->i_blocks < count);
 
 	inode->i_blocks -= count;
 	sbi->total_valid_node_count -= count;
@@ -740,7 +746,7 @@ static inline unsigned int valid_node_count(struct f2fs_sb_info *sbi)
 static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
 {
 	spin_lock(&sbi->stat_lock);
-	BUG_ON(sbi->total_valid_inode_count == sbi->total_node_count);
+	f2fs_bug_on(sbi->total_valid_inode_count == sbi->total_node_count);
 	sbi->total_valid_inode_count++;
 	spin_unlock(&sbi->stat_lock);
 }
@@ -748,7 +754,7 @@ static inline void inc_valid_inode_count(struct f2fs_sb_info *sbi)
 static inline int dec_valid_inode_count(struct f2fs_sb_info *sbi)
 {
 	spin_lock(&sbi->stat_lock);
-	BUG_ON(!sbi->total_valid_inode_count);
+	f2fs_bug_on(!sbi->total_valid_inode_count);
 	sbi->total_valid_inode_count--;
 	spin_unlock(&sbi->stat_lock);
 	return 0;
@@ -769,7 +775,7 @@ static inline void f2fs_put_page(struct page *page, int unlock)
 		return;
 
 	if (unlock) {
-		BUG_ON(!PageLocked(page));
+		f2fs_bug_on(!PageLocked(page));
 		unlock_page(page);
 	}
 	page_cache_release(page);
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 2d4190a4abe3..58ed19aaa4c6 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -296,7 +296,7 @@ static int truncate_blocks(struct inode *inode, u64 from)
 		count = ADDRS_PER_BLOCK;
 
 	count -= dn.ofs_in_node;
-	BUG_ON(count < 0);
+	f2fs_bug_on(count < 0);
 
 	if (dn.ofs_in_node || IS_INODE(dn.node_page)) {
 		truncate_data_blocks_range(&dn, count);
diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index 7377ca3ce5c5..d0eaa9faeca0 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -266,7 +266,7 @@ void f2fs_evict_inode(struct inode *inode)
 			inode->i_ino == F2FS_META_INO(sbi))
 		goto no_delete;
 
-	BUG_ON(atomic_read(&F2FS_I(inode)->dirty_dents));
+	f2fs_bug_on(atomic_read(&F2FS_I(inode)->dirty_dents));
 	remove_dirty_dir_inode(inode);
 
 	if (inode->i_nlink || is_bad_inode(inode))
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 304d5ced6355..8e331d5b9fcd 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -204,7 +204,7 @@ retry:
 		}
 		e->ni = *ni;
 		e->checkpointed = true;
-		BUG_ON(ni->blk_addr == NEW_ADDR);
+		f2fs_bug_on(ni->blk_addr == NEW_ADDR);
 	} else if (new_blkaddr == NEW_ADDR) {
 		/*
 		 * when nid is reallocated,
@@ -212,19 +212,19 @@ retry:
 		 * So, reinitialize it with new information.
 		 */
 		e->ni = *ni;
-		BUG_ON(ni->blk_addr != NULL_ADDR);
+		f2fs_bug_on(ni->blk_addr != NULL_ADDR);
 	}
 
 	if (new_blkaddr == NEW_ADDR)
 		e->checkpointed = false;
 
 	/* sanity check */
-	BUG_ON(nat_get_blkaddr(e) != ni->blk_addr);
-	BUG_ON(nat_get_blkaddr(e) == NULL_ADDR &&
+	f2fs_bug_on(nat_get_blkaddr(e) != ni->blk_addr);
+	f2fs_bug_on(nat_get_blkaddr(e) == NULL_ADDR &&
 			new_blkaddr == NULL_ADDR);
-	BUG_ON(nat_get_blkaddr(e) == NEW_ADDR &&
+	f2fs_bug_on(nat_get_blkaddr(e) == NEW_ADDR &&
 			new_blkaddr == NEW_ADDR);
-	BUG_ON(nat_get_blkaddr(e) != NEW_ADDR &&
+	f2fs_bug_on(nat_get_blkaddr(e) != NEW_ADDR &&
 			nat_get_blkaddr(e) != NULL_ADDR &&
 			new_blkaddr == NEW_ADDR);
 
@@ -495,10 +495,10 @@ static void truncate_node(struct dnode_of_data *dn)
 
 	get_node_info(sbi, dn->nid, &ni);
 	if (dn->inode->i_blocks == 0) {
-		BUG_ON(ni.blk_addr != NULL_ADDR);
+		f2fs_bug_on(ni.blk_addr != NULL_ADDR);
 		goto invalidate;
 	}
-	BUG_ON(ni.blk_addr == NULL_ADDR);
+	f2fs_bug_on(ni.blk_addr == NULL_ADDR);
 
 	/* Deallocate node address */
 	invalidate_blocks(sbi, ni.blk_addr);
@@ -822,7 +822,7 @@ int remove_inode_page(struct inode *inode)
 	}
 
 	/* 0 is possible, after f2fs_new_inode() is failed */
-	BUG_ON(inode->i_blocks != 0 && inode->i_blocks != 1);
+	f2fs_bug_on(inode->i_blocks != 0 && inode->i_blocks != 1);
 	set_new_dnode(&dn, inode, page, page, ino);
 	truncate_node(&dn);
 	return 0;
@@ -863,7 +863,7 @@ struct page *new_node_page(struct dnode_of_data *dn,
 	get_node_info(sbi, dn->nid, &old_ni);
 
 	/* Reinitialize old_ni with new node page */
-	BUG_ON(old_ni.blk_addr != NULL_ADDR);
+	f2fs_bug_on(old_ni.blk_addr != NULL_ADDR);
 	new_ni = old_ni;
 	new_ni.ino = dn->inode->i_ino;
 	set_node_addr(sbi, &new_ni, NEW_ADDR);
@@ -969,7 +969,7 @@ repeat:
 		goto repeat;
 	}
 got_it:
-	BUG_ON(nid != nid_of_node(page));
+	f2fs_bug_on(nid != nid_of_node(page));
 	mark_page_accessed(page);
 	return page;
 }
@@ -1163,7 +1163,7 @@ static int f2fs_write_node_page(struct page *page,
 
 	/* get old block addr of this node page */
 	nid = nid_of_node(page);
-	BUG_ON(page->index != nid);
+	f2fs_bug_on(page->index != nid);
 
 	get_node_info(sbi, nid, &ni);
 
@@ -1349,7 +1349,7 @@ static void scan_nat_page(struct f2fs_nm_info *nm_i,
 			break;
 
 		blk_addr = le32_to_cpu(nat_blk->entries[i].block_addr);
-		BUG_ON(blk_addr == NEW_ADDR);
+		f2fs_bug_on(blk_addr == NEW_ADDR);
 		if (blk_addr == NULL_ADDR) {
 			if (add_free_nid(nm_i, start_nid, true) < 0)
 				break;
@@ -1420,14 +1420,14 @@ retry:
 
 	/* We should not use stale free nids created by build_free_nids */
 	if (nm_i->fcnt && !sbi->on_build_free_nids) {
-		BUG_ON(list_empty(&nm_i->free_nid_list));
+		f2fs_bug_on(list_empty(&nm_i->free_nid_list));
 		list_for_each(this, &nm_i->free_nid_list) {
 			i = list_entry(this, struct free_nid, list);
 			if (i->state == NID_NEW)
 				break;
 		}
 
-		BUG_ON(i->state != NID_NEW);
+		f2fs_bug_on(i->state != NID_NEW);
 		*nid = i->nid;
 		i->state = NID_ALLOC;
 		nm_i->fcnt--;
@@ -1455,7 +1455,7 @@ void alloc_nid_done(struct f2fs_sb_info *sbi, nid_t nid)
 
 	spin_lock(&nm_i->free_nid_list_lock);
 	i = __lookup_free_nid_list(nid, &nm_i->free_nid_list);
-	BUG_ON(!i || i->state != NID_ALLOC);
+	f2fs_bug_on(!i || i->state != NID_ALLOC);
 	__del_from_free_nid_list(i);
 	spin_unlock(&nm_i->free_nid_list_lock);
 }
@@ -1473,7 +1473,7 @@ void alloc_nid_failed(struct f2fs_sb_info *sbi, nid_t nid)
 
 	spin_lock(&nm_i->free_nid_list_lock);
 	i = __lookup_free_nid_list(nid, &nm_i->free_nid_list);
-	BUG_ON(!i || i->state != NID_ALLOC);
+	f2fs_bug_on(!i || i->state != NID_ALLOC);
 	if (nm_i->fcnt > 2 * MAX_FREE_NIDS) {
 		__del_from_free_nid_list(i);
 	} else {
@@ -1676,7 +1676,7 @@ to_nat_page:
 			nat_blk = page_address(page);
 		}
 
-		BUG_ON(!nat_blk);
+		f2fs_bug_on(!nat_blk);
 		raw_ne = nat_blk->entries[nid - start_nid];
 flush_now:
 		new_blkaddr = nat_get_blkaddr(ne);
@@ -1780,11 +1780,11 @@ void destroy_node_manager(struct f2fs_sb_info *sbi)
 	/* destroy free nid list */
 	spin_lock(&nm_i->free_nid_list_lock);
 	list_for_each_entry_safe(i, next_i, &nm_i->free_nid_list, list) {
-		BUG_ON(i->state == NID_ALLOC);
+		f2fs_bug_on(i->state == NID_ALLOC);
 		__del_from_free_nid_list(i);
 		nm_i->fcnt--;
 	}
-	BUG_ON(nm_i->fcnt);
+	f2fs_bug_on(nm_i->fcnt);
 	spin_unlock(&nm_i->free_nid_list_lock);
 
 	/* destroy nat cache */
@@ -1798,7 +1798,7 @@ void destroy_node_manager(struct f2fs_sb_info *sbi)
 			__del_from_nat_cache(nm_i, e);
 		}
 	}
-	BUG_ON(nm_i->nat_cnt);
+	f2fs_bug_on(nm_i->nat_cnt);
 	write_unlock(&nm_i->nat_tree_lock);
 
 	kfree(nm_i->nat_bitmap);
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index b278c68b3e08..fdc81161f254 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -311,8 +311,8 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
 	wait_on_page_writeback(dn.node_page);
 
 	get_node_info(sbi, dn.nid, &ni);
-	BUG_ON(ni.ino != ino_of_node(page));
-	BUG_ON(ofs_of_node(dn.node_page) != ofs_of_node(page));
+	f2fs_bug_on(ni.ino != ino_of_node(page));
+	f2fs_bug_on(ofs_of_node(dn.node_page) != ofs_of_node(page));
 
 	for (; start < end; start++) {
 		block_t src, dest;
@@ -322,9 +322,9 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
 
 		if (src != dest && dest != NEW_ADDR && dest != NULL_ADDR) {
 			if (src == NULL_ADDR) {
-				int err = reserve_new_block(&dn);
+				err = reserve_new_block(&dn);
 				/* We should not get -ENOSPC */
-				BUG_ON(err);
+				f2fs_bug_on(err);
 			}
 
 			/* Check the previous node page having this index */
@@ -447,7 +447,7 @@ int recover_fsync_data(struct f2fs_sb_info *sbi)
 
 	/* step #2: recover data */
 	err = recover_data(sbi, &inode_list, CURSEG_WARM_NODE);
-	BUG_ON(!list_empty(&inode_list));
+	f2fs_bug_on(!list_empty(&inode_list));
 out:
 	destroy_fsync_dnodes(&inode_list);
 	kmem_cache_destroy(fsync_entry_slab);
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 8f92c18a01fb..c7161defff90 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -192,7 +192,7 @@ static void update_sit_entry(struct f2fs_sb_info *sbi, block_t blkaddr, int del)
 	new_vblocks = se->valid_blocks + del;
 	offset = GET_SEGOFF_FROM_SEG0(sbi, blkaddr) & (sbi->blocks_per_seg - 1);
 
-	BUG_ON((new_vblocks >> (sizeof(unsigned short) << 3) ||
+	f2fs_bug_on((new_vblocks >> (sizeof(unsigned short) << 3) ||
 				(new_vblocks > sbi->blocks_per_seg)));
 
 	se->valid_blocks = new_vblocks;
@@ -232,7 +232,7 @@ void invalidate_blocks(struct f2fs_sb_info *sbi, block_t addr)
 	unsigned int segno = GET_SEGNO(sbi, addr);
 	struct sit_info *sit_i = SIT_I(sbi);
 
-	BUG_ON(addr == NULL_ADDR);
+	f2fs_bug_on(addr == NULL_ADDR);
 	if (addr == NEW_ADDR)
 		return;
 
@@ -347,7 +347,7 @@ find_other_zone:
 		if (dir == ALLOC_RIGHT) {
 			secno = find_next_zero_bit(free_i->free_secmap,
 							TOTAL_SECS(sbi), 0);
-			BUG_ON(secno >= TOTAL_SECS(sbi));
+			f2fs_bug_on(secno >= TOTAL_SECS(sbi));
 		} else {
 			go_left = 1;
 			left_start = hint - 1;
@@ -363,7 +363,7 @@ find_other_zone:
 		}
 		left_start = find_next_zero_bit(free_i->free_secmap,
 							TOTAL_SECS(sbi), 0);
-		BUG_ON(left_start >= TOTAL_SECS(sbi));
+		f2fs_bug_on(left_start >= TOTAL_SECS(sbi));
 		break;
 	}
 	secno = left_start;
@@ -402,7 +402,7 @@ skip_left:
 	}
 got_it:
 	/* set it as dirty segment in free segmap */
-	BUG_ON(test_bit(segno, free_i->free_segmap));
+	f2fs_bug_on(test_bit(segno, free_i->free_segmap));
 	__set_inuse(sbi, segno);
 	*newseg = segno;
 	write_unlock(&free_i->segmap_lock);
@@ -773,7 +773,7 @@ static int __get_segment_type(struct page *page, enum page_type p_type)
 		return __get_segment_type_4(page, p_type);
 	}
 	/* NR_CURSEG_TYPE(6) logs by default */
-	BUG_ON(sbi->active_logs != NR_CURSEG_TYPE);
+	f2fs_bug_on(sbi->active_logs != NR_CURSEG_TYPE);
 	return __get_segment_type_6(page, p_type);
 }
 
@@ -850,7 +850,7 @@ void write_data_page(struct inode *inode, struct page *page,
 	struct f2fs_summary sum;
 	struct node_info ni;
 
-	BUG_ON(old_blkaddr == NULL_ADDR);
+	f2fs_bug_on(old_blkaddr == NULL_ADDR);
 	get_node_info(sbi, dn->nid, &ni);
 	set_summary(&sum, dn->nid, dn->ofs_in_node, ni.version);
 
@@ -1240,7 +1240,7 @@ static struct page *get_next_sit_page(struct f2fs_sb_info *sbi,
 	/* get current sit block page without lock */
 	src_page = get_meta_page(sbi, src_off);
 	dst_page = grab_meta_page(sbi, dst_off);
-	BUG_ON(PageDirty(src_page));
+	f2fs_bug_on(PageDirty(src_page));
 
 	src_addr = page_address(src_page);
 	dst_addr = page_address(dst_page);
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index abe7094c4f7a..001d4c4d97fd 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -522,16 +522,13 @@ static inline unsigned short curseg_blkoff(struct f2fs_sb_info *sbi, int type)
 	return curseg->next_blkoff;
 }
 
+#ifdef CONFIG_F2FS_CHECK_FS
 static inline void check_seg_range(struct f2fs_sb_info *sbi, unsigned int segno)
 {
 	unsigned int end_segno = SM_I(sbi)->segment_count - 1;
 	BUG_ON(segno > end_segno);
 }
 
-/*
- * This function is used for only debugging.
- * NOTE: In future, we have to remove this function.
- */
 static inline void verify_block_addr(struct f2fs_sb_info *sbi, block_t blk_addr)
 {
 	struct f2fs_sm_info *sm_info = SM_I(sbi);
@@ -565,6 +562,11 @@ static inline void check_block_count(struct f2fs_sb_info *sbi,
 			valid_blocks++;
 	BUG_ON(GET_SIT_VBLOCKS(raw_sit) != valid_blocks);
 }
+#else
+#define check_seg_range(sbi, segno)
+#define verify_block_addr(sbi, blk_addr)
+#define check_block_count(sbi, segno, raw_sit)
+#endif
 
 static inline pgoff_t current_sit_addr(struct f2fs_sb_info *sbi,
 						unsigned int start)
diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index f685138dd496..89d506d0b35d 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -372,7 +372,7 @@ static inline int write_all_xattrs(struct inode *inode, __u32 hsize,
 			alloc_nid_failed(sbi, new_nid);
 			return PTR_ERR(xpage);
 		}
-		BUG_ON(new_nid);
+		f2fs_bug_on(new_nid);
 	} else {
 		struct dnode_of_data dn;
 		set_new_dnode(&dn, inode, NULL, NULL, new_nid);
-- 
cgit 


From cc3de6a3acce264f4eb0b5bf552478e5f1380bba Mon Sep 17 00:00:00 2001
From: Chao Yu <chao2.yu@samsung.com>
Date: Tue, 29 Oct 2013 14:17:05 +0800
Subject: f2fs: fix calculating incorrect free size when update xattr in
 __f2fs_setxattr

During xattr updating, free size should be corrected to remainder free size
+ old entry size.
It can avoid ENOSPC error when we update old entry with the same size new
entry at fully filled xattr.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/xattr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/xattr.c b/fs/f2fs/xattr.c
index 89d506d0b35d..aa7a3f139fe5 100644
--- a/fs/f2fs/xattr.c
+++ b/fs/f2fs/xattr.c
@@ -520,7 +520,7 @@ static int __f2fs_setxattr(struct inode *inode, int name_index,
 		 */
 		free = MIN_OFFSET(inode) - ((char *)last - (char *)base_addr);
 		if (found)
-			free = free - ENTRY_SIZE(here);
+			free = free + ENTRY_SIZE(here);
 
 		if (free < newsize) {
 			error = -ENOSPC;
-- 
cgit 


From 33826d01d0f7e46eccd670e1ecdae1dff1cebfd2 Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Tue, 29 Oct 2013 01:18:22 +1100
Subject: video: xilinxfb: Fix for "Use standard variable name convention"

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Tested-by: Michal Simek <monstr@monstr.eu>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/xilinxfb.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/video/xilinxfb.c b/drivers/video/xilinxfb.c
index 9eedf9673b7f..6ff1a91e9dfd 100644
--- a/drivers/video/xilinxfb.c
+++ b/drivers/video/xilinxfb.c
@@ -428,11 +428,11 @@ static int xilinxfb_of_probe(struct platform_device *pdev)
 #ifdef CONFIG_PPC_DCR
 	else {
 		int start;
-		start = dcr_resource_start(op->dev.of_node, 0);
-		drvdata->dcr_len = dcr_resource_len(op->dev.of_node, 0);
-		drvdata->dcr_host = dcr_map(op->dev.of_node, start, drvdata->dcr_len);
+		start = dcr_resource_start(pdev->dev.of_node, 0);
+		drvdata->dcr_len = dcr_resource_len(pdev->dev.of_node, 0);
+		drvdata->dcr_host = dcr_map(pdev->dev.of_node, start, drvdata->dcr_len);
 		if (!DCR_MAP_OK(drvdata->dcr_host)) {
-			dev_err(&op->dev, "invalid DCR address\n");
+			dev_err(&pdev->dev, "invalid DCR address\n");
 			return -ENODEV;
 		}
 	}
-- 
cgit 


From e6cd988c27bb5918630db67b3526c9e78e786818 Mon Sep 17 00:00:00 2001
From: Joseph Gasparakis <joseph.gasparakis@intel.com>
Date: Thu, 24 Oct 2013 06:27:10 +0000
Subject: vxlan: Have the NIC drivers do less work for offloads

This patch removes the burden from the NIC drivers to check if the
vxlan driver is enabled in the kernel and also makes available
the vxlan headrooms to them.

Signed-off-by: Joseph Gasparakis <joseph.gasparakis@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/vxlan.c |  4 ----
 include/net/vxlan.h | 11 +++++++++++
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 75a3a740ce19..24260ced86d2 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -60,10 +60,6 @@
 
 #define VXLAN_N_VID	(1u << 24)
 #define VXLAN_VID_MASK	(VXLAN_N_VID - 1)
-/* IP header + UDP + VXLAN + Ethernet header */
-#define VXLAN_HEADROOM (20 + 8 + 8 + 14)
-/* IPv6 header + UDP + VXLAN + Ethernet header */
-#define VXLAN6_HEADROOM (40 + 8 + 8 + 14)
 #define VXLAN_HLEN (sizeof(struct udphdr) + sizeof(struct vxlanhdr))
 
 #define VXLAN_FLAGS 0x08000000	/* struct vxlanhdr.vx_flags required value. */
diff --git a/include/net/vxlan.h b/include/net/vxlan.h
index 2d64d3cd4999..6b6d180fb91a 100644
--- a/include/net/vxlan.h
+++ b/include/net/vxlan.h
@@ -36,5 +36,16 @@ int vxlan_xmit_skb(struct vxlan_sock *vs,
 
 __be16 vxlan_src_port(__u16 port_min, __u16 port_max, struct sk_buff *skb);
 
+/* IP header + UDP + VXLAN + Ethernet header */
+#define VXLAN_HEADROOM (20 + 8 + 8 + 14)
+/* IPv6 header + UDP + VXLAN + Ethernet header */
+#define VXLAN6_HEADROOM (40 + 8 + 8 + 14)
+
+#if IS_ENABLED(CONFIG_VXLAN)
 void vxlan_get_rx_port(struct net_device *netdev);
+#else
+static inline void vxlan_get_rx_port(struct net_device *netdev)
+{
+}
+#endif
 #endif
-- 
cgit 


From 80c33ddd31d0e801953e02b7b003f395c1920e4e Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Sat, 21 Sep 2013 05:05:39 +0000
Subject: net: add might_sleep() call to napi_disable

napi_disable uses an msleep() call to wait for outstanding napi work to be
finished after setting the disable bit. It does not always sleep incase there
was no outstanding work. This resulted in a rare bug in ixgbe_down operation
where a napi_disable call took place inside of a local_bh_disable()d context.
In order to enable easier detection of future sleep while atomic BUGs, this
patch adds a might_sleep() call, so that every use of napi_disable during
atomic context will be visible.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Cc: Alexander Duyck <alexander.duyck@intel.com>
Cc: Hyong-Youb Kim <hykim@myri.com>
Cc: Amir Vadai <amirv@mellanox.com>
Cc: Dmitry Kravkov <dmitry@broadcom.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 include/linux/netdevice.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 27f62f746621..cb1d918ecdf1 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -483,6 +483,7 @@ void napi_hash_del(struct napi_struct *napi);
  */
 static inline void napi_disable(struct napi_struct *n)
 {
+	might_sleep();
 	set_bit(NAPI_STATE_DISABLE, &n->state);
 	while (test_and_set_bit(NAPI_STATE_SCHED, &n->state))
 		msleep(1);
-- 
cgit 


From e8ddb0cfa18dfa4d85d6c420c967850d430b07c6 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Sat, 12 Oct 2013 14:25:23 +0800
Subject: fbdev: fix error return code in metronomefb_probe()

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/metronomefb.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/video/metronomefb.c b/drivers/video/metronomefb.c
index 2d7dd8ea43f6..195cc2db4c2c 100644
--- a/drivers/video/metronomefb.c
+++ b/drivers/video/metronomefb.c
@@ -690,7 +690,8 @@ static int metronomefb_probe(struct platform_device *dev)
 		goto err_csum_table;
 	}
 
-	if (board->setup_irq(info))
+	retval = board->setup_irq(info);
+	if (retval)
 		goto err_csum_table;
 
 	retval = metronome_init_regs(par);
-- 
cgit 


From 27d9ce4fd0e2e75c2907f6d3dc0487012a3e4298 Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Sat, 21 Sep 2013 05:05:44 +0000
Subject: ixgbe: fix qv_lock_napi call in ixgbe_napi_disable_all

ixgbe_napi_disable_all calls napi_disable on each queue, however the busy
polling code introduced a local_bh_disable()d context around the napi_disable.
The original author did not realize that napi_disable might sleep, which would
cause a sleep while atomic BUG. In addition, on a single processor system, the
ixgbe_qv_lock_napi loop shouldn't have to mdelay. This patch adds an
ixgbe_qv_disable along with a new IXGBE_QV_STATE_DISABLED bit, which it uses to
indicate to the poll and napi routines that the q_vector has been disabled. Now
the ixgbe_napi_disable_all function will wait until all pending work has been
finished and prevent any future work from being started.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Cc: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Cc: Alexander Duyck <alexander.duyck@intel.com>
Cc: Hyong-Youb Kim <hykim@myri.com>
Cc: Amir Vadai <amirv@mellanox.com>
Cc: Dmitry Kravkov <dmitry@broadcom.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe.h      | 48 ++++++++++++++++++++-------
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |  6 ++--
 2 files changed, 38 insertions(+), 16 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index dc1588ee264a..f51fd1f4fb49 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -369,11 +369,13 @@ struct ixgbe_q_vector {
 #ifdef CONFIG_NET_RX_BUSY_POLL
 	unsigned int state;
 #define IXGBE_QV_STATE_IDLE        0
-#define IXGBE_QV_STATE_NAPI	   1    /* NAPI owns this QV */
-#define IXGBE_QV_STATE_POLL	   2    /* poll owns this QV */
-#define IXGBE_QV_LOCKED (IXGBE_QV_STATE_NAPI | IXGBE_QV_STATE_POLL)
-#define IXGBE_QV_STATE_NAPI_YIELD  4    /* NAPI yielded this QV */
-#define IXGBE_QV_STATE_POLL_YIELD  8    /* poll yielded this QV */
+#define IXGBE_QV_STATE_NAPI	   1     /* NAPI owns this QV */
+#define IXGBE_QV_STATE_POLL	   2     /* poll owns this QV */
+#define IXGBE_QV_STATE_DISABLED	   4     /* QV is disabled */
+#define IXGBE_QV_OWNED (IXGBE_QV_STATE_NAPI | IXGBE_QV_STATE_POLL)
+#define IXGBE_QV_LOCKED (IXGBE_QV_OWNED | IXGBE_QV_STATE_DISABLED)
+#define IXGBE_QV_STATE_NAPI_YIELD  8     /* NAPI yielded this QV */
+#define IXGBE_QV_STATE_POLL_YIELD  16    /* poll yielded this QV */
 #define IXGBE_QV_YIELD (IXGBE_QV_STATE_NAPI_YIELD | IXGBE_QV_STATE_POLL_YIELD)
 #define IXGBE_QV_USER_PEND (IXGBE_QV_STATE_POLL | IXGBE_QV_STATE_POLL_YIELD)
 	spinlock_t lock;
@@ -394,7 +396,7 @@ static inline void ixgbe_qv_init_lock(struct ixgbe_q_vector *q_vector)
 static inline bool ixgbe_qv_lock_napi(struct ixgbe_q_vector *q_vector)
 {
 	int rc = true;
-	spin_lock(&q_vector->lock);
+	spin_lock_bh(&q_vector->lock);
 	if (q_vector->state & IXGBE_QV_LOCKED) {
 		WARN_ON(q_vector->state & IXGBE_QV_STATE_NAPI);
 		q_vector->state |= IXGBE_QV_STATE_NAPI_YIELD;
@@ -405,7 +407,7 @@ static inline bool ixgbe_qv_lock_napi(struct ixgbe_q_vector *q_vector)
 	} else
 		/* we don't care if someone yielded */
 		q_vector->state = IXGBE_QV_STATE_NAPI;
-	spin_unlock(&q_vector->lock);
+	spin_unlock_bh(&q_vector->lock);
 	return rc;
 }
 
@@ -413,14 +415,15 @@ static inline bool ixgbe_qv_lock_napi(struct ixgbe_q_vector *q_vector)
 static inline bool ixgbe_qv_unlock_napi(struct ixgbe_q_vector *q_vector)
 {
 	int rc = false;
-	spin_lock(&q_vector->lock);
+	spin_lock_bh(&q_vector->lock);
 	WARN_ON(q_vector->state & (IXGBE_QV_STATE_POLL |
 			       IXGBE_QV_STATE_NAPI_YIELD));
 
 	if (q_vector->state & IXGBE_QV_STATE_POLL_YIELD)
 		rc = true;
-	q_vector->state = IXGBE_QV_STATE_IDLE;
-	spin_unlock(&q_vector->lock);
+	/* will reset state to idle, unless QV is disabled */
+	q_vector->state &= IXGBE_QV_STATE_DISABLED;
+	spin_unlock_bh(&q_vector->lock);
 	return rc;
 }
 
@@ -451,7 +454,8 @@ static inline bool ixgbe_qv_unlock_poll(struct ixgbe_q_vector *q_vector)
 
 	if (q_vector->state & IXGBE_QV_STATE_POLL_YIELD)
 		rc = true;
-	q_vector->state = IXGBE_QV_STATE_IDLE;
+	/* will reset state to idle, unless QV is disabled */
+	q_vector->state &= IXGBE_QV_STATE_DISABLED;
 	spin_unlock_bh(&q_vector->lock);
 	return rc;
 }
@@ -459,9 +463,23 @@ static inline bool ixgbe_qv_unlock_poll(struct ixgbe_q_vector *q_vector)
 /* true if a socket is polling, even if it did not get the lock */
 static inline bool ixgbe_qv_busy_polling(struct ixgbe_q_vector *q_vector)
 {
-	WARN_ON(!(q_vector->state & IXGBE_QV_LOCKED));
+	WARN_ON(!(q_vector->state & IXGBE_QV_OWNED));
 	return q_vector->state & IXGBE_QV_USER_PEND;
 }
+
+/* false if QV is currently owned */
+static inline bool ixgbe_qv_disable(struct ixgbe_q_vector *q_vector)
+{
+	int rc = true;
+	spin_lock_bh(&q_vector->lock);
+	if (q_vector->state & IXGBE_QV_OWNED)
+		rc = false;
+	q_vector->state |= IXGBE_QV_STATE_DISABLED;
+	spin_unlock_bh(&q_vector->lock);
+
+	return rc;
+}
+
 #else /* CONFIG_NET_RX_BUSY_POLL */
 static inline void ixgbe_qv_init_lock(struct ixgbe_q_vector *q_vector)
 {
@@ -491,6 +509,12 @@ static inline bool ixgbe_qv_busy_polling(struct ixgbe_q_vector *q_vector)
 {
 	return false;
 }
+
+static inline bool ixgbe_qv_disable(struct ixgbe_q_vector *q_vector)
+{
+	return true;
+}
+
 #endif /* CONFIG_NET_RX_BUSY_POLL */
 
 #ifdef CONFIG_IXGBE_HWMON
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index ce3eb603333e..ee90dfb518aa 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -3891,15 +3891,13 @@ static void ixgbe_napi_disable_all(struct ixgbe_adapter *adapter)
 {
 	int q_idx;
 
-	local_bh_disable(); /* for ixgbe_qv_lock_napi() */
 	for (q_idx = 0; q_idx < adapter->num_q_vectors; q_idx++) {
 		napi_disable(&adapter->q_vector[q_idx]->napi);
-		while (!ixgbe_qv_lock_napi(adapter->q_vector[q_idx])) {
+		while (!ixgbe_qv_disable(adapter->q_vector[q_idx])) {
 			pr_info("QV %d locked\n", q_idx);
-			mdelay(1);
+			usleep_range(1000, 20000);
 		}
 	}
-	local_bh_enable();
 }
 
 #ifdef CONFIG_IXGBE_DCB
-- 
cgit 


From 9b389a8a022110b4bc055a19b888283544d9eba6 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 28 Oct 2013 11:24:23 +0100
Subject: ALSA: 6fire: Fix probe of multiple cards

The probe code of snd-usb-6fire driver overrides the devices[] pointer
wrongly without checking whether it's already occupied or not.  This
would screw up the device disconnection later.

Spotted by coverity CID 141423.

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/6fire/chip.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/usb/6fire/chip.c b/sound/usb/6fire/chip.c
index c39c77978468..66edc4a7917f 100644
--- a/sound/usb/6fire/chip.c
+++ b/sound/usb/6fire/chip.c
@@ -101,7 +101,7 @@ static int usb6fire_chip_probe(struct usb_interface *intf,
 			usb_set_intfdata(intf, chips[i]);
 			mutex_unlock(&register_mutex);
 			return 0;
-		} else if (regidx < 0)
+		} else if (!devices[i] && regidx < 0)
 			regidx = i;
 	}
 	if (regidx < 0) {
-- 
cgit 


From 728deecdd4e9b4a58faf518638169c743c57cee2 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 28 Oct 2013 11:39:23 +0100
Subject: ALSA: hda - Fix possible NULL dereference in snd_hda_get_pin_label()

Fix a possible NULL access of indexp in fill_audio_out_name() called
from snd_hda_get_pin_label().

Spotted by coverity CID 402035.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_auto_parser.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/hda/hda_auto_parser.c b/sound/pci/hda/hda_auto_parser.c
index 48a9d004d6d9..853c6a69e29e 100644
--- a/sound/pci/hda/hda_auto_parser.c
+++ b/sound/pci/hda/hda_auto_parser.c
@@ -638,7 +638,7 @@ static int fill_audio_out_name(struct hda_codec *codec, hda_nid_t nid,
 			/* don't add channel suffix for Headphone controls */
 			int idx = get_hp_label_index(codec, nid, cfg->hp_pins,
 						     cfg->hp_outs);
-			if (idx >= 0)
+			if (idx >= 0 && indexp)
 				*indexp = idx;
 			sfx = "";
 		}
-- 
cgit 


From 57d8ff617f871eee11bb2f648505592c2e859d0f Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 28 Oct 2013 11:42:56 +0100
Subject: ALSA: hda - Add a fallthru comment

... to improve the readability.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_beep.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/hda_beep.c b/sound/pci/hda/hda_beep.c
index 20d065a17226..98bce9830be0 100644
--- a/sound/pci/hda/hda_beep.c
+++ b/sound/pci/hda/hda_beep.c
@@ -110,6 +110,7 @@ static int snd_hda_beep_event(struct input_dev *dev, unsigned int type,
 	case SND_BELL:
 		if (hz)
 			hz = 1000;
+		/* fallthru */
 	case SND_TONE:
 		if (beep->linear_tone)
 			beep->tone = beep_linear_tone(beep, hz);
-- 
cgit 


From ca16ec02e1887cc88e9eb3504ee8ea6d8112d05d Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 28 Oct 2013 12:00:35 +0100
Subject: ALSA: hda - Remove locally dead codes

Reported by coverity.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_codec.c     | 3 +--
 sound/pci/hda/patch_realtek.c | 2 --
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 0faab3b4dabb..de1a7670ba0d 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -2634,8 +2634,7 @@ static int map_slaves(struct hda_codec *codec, const char * const *slaves,
 	items = codec->mixers.list;
 	for (i = 0; i < codec->mixers.used; i++) {
 		struct snd_kcontrol *sctl = items[i].kctl;
-		if (!sctl || !sctl->id.name ||
-		    sctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER)
+		if (!sctl || sctl->id.iface != SNDRV_CTL_ELEM_IFACE_MIXER)
 			continue;
 		for (s = slaves; *s; s++) {
 			char tmpname[sizeof(sctl->id.name)];
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 1f0a040a9818..894703532ab7 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -554,8 +554,6 @@ do_sku:
 			nid = portd;
 		else if (tmp == 3)
 			nid = porti;
-		else
-			return 1;
 		if (found_in_nid_list(nid, spec->gen.autocfg.line_out_pins,
 				      spec->gen.autocfg.line_outs))
 			return 1;
-- 
cgit 


From 1f96153bc613c526f5ea39a7f366b3bdf70249be Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 28 Oct 2013 12:40:46 +0100
Subject: ALSA: pcm: Add fallthru comments

Just to improve readability.
Spotted by coverity CID 115002 and 115003.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/core/pcm_native.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index b71be579c6ec..01a5e05ede95 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -2428,6 +2428,7 @@ static int snd_pcm_hwsync(struct snd_pcm_substream *substream)
 	case SNDRV_PCM_STATE_DRAINING:
 		if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
 			goto __badfd;
+		/* Fall through */
 	case SNDRV_PCM_STATE_RUNNING:
 		if ((err = snd_pcm_update_hw_ptr(substream)) < 0)
 			break;
@@ -2460,6 +2461,7 @@ static int snd_pcm_delay(struct snd_pcm_substream *substream,
 	case SNDRV_PCM_STATE_DRAINING:
 		if (substream->stream == SNDRV_PCM_STREAM_CAPTURE)
 			goto __badfd;
+		/* Fall through */
 	case SNDRV_PCM_STATE_RUNNING:
 		if ((err = snd_pcm_update_hw_ptr(substream)) < 0)
 			break;
-- 
cgit 


From 60f6fef877d52525b8887d27cfacf74a279e3e12 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 28 Oct 2013 12:54:52 +0100
Subject: ALSA: Optimize module name check

module->name is a fixed array, so we can check the empty contents
straightforwardly in module_slot_match().

Spotted by coverity CID 1056786.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/core/init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/core/init.c b/sound/core/init.c
index 6b9087115da2..01a89383a062 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -66,7 +66,7 @@ static int module_slot_match(struct module *module, int idx)
 #ifdef MODULE
 	const char *s1, *s2;
 
-	if (!module || !module->name || !slots[idx])
+	if (!module || !*module->name || !slots[idx])
 		return 0;
 
 	s1 = module->name;
-- 
cgit 


From b327d25c1c3d475d1d1217be520801283e8bdf29 Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Tue, 29 Oct 2013 12:05:02 +0900
Subject: ALSA: Fix typo in documentation/alsa

Correct spelling typo in documentation/alsa

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 Documentation/sound/alsa/ALSA-Configuration.txt | 2 +-
 Documentation/sound/alsa/Audiophile-Usb.txt     | 2 +-
 Documentation/sound/alsa/CMIPCI.txt             | 2 +-
 Documentation/sound/alsa/compress_offload.txt   | 6 +++---
 Documentation/sound/alsa/soc/DPCM.txt           | 4 ++--
 Documentation/sound/alsa/soc/dapm.txt           | 4 ++--
 6 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt
index 95731a08f257..b8dd0df76952 100644
--- a/Documentation/sound/alsa/ALSA-Configuration.txt
+++ b/Documentation/sound/alsa/ALSA-Configuration.txt
@@ -616,7 +616,7 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed.
 
     As default, snd-dummy drivers doesn't allocate the real buffers
     but either ignores read/write or mmap a single dummy page to all
-    buffer pages, in order to save the resouces.  If your apps need
+    buffer pages, in order to save the resources.  If your apps need
     the read/ written buffer data to be consistent, pass fake_buffer=0
     option.
 
diff --git a/Documentation/sound/alsa/Audiophile-Usb.txt b/Documentation/sound/alsa/Audiophile-Usb.txt
index 654dd3b694a8..e7a5ed4dcae8 100644
--- a/Documentation/sound/alsa/Audiophile-Usb.txt
+++ b/Documentation/sound/alsa/Audiophile-Usb.txt
@@ -232,7 +232,7 @@ The parameter can be given:
    # modprobe snd-usb-audio index=1 device_setup=0x09
 
  * Or while configuring the modules options in your modules configuration file
-   (tipically a .conf file in /etc/modprobe.d/ directory:
+   (typically a .conf file in /etc/modprobe.d/ directory:
        alias snd-card-1 snd-usb-audio
        options snd-usb-audio index=1 device_setup=0x09
 
diff --git a/Documentation/sound/alsa/CMIPCI.txt b/Documentation/sound/alsa/CMIPCI.txt
index 16935c8561f7..4e36e6e809ca 100644
--- a/Documentation/sound/alsa/CMIPCI.txt
+++ b/Documentation/sound/alsa/CMIPCI.txt
@@ -87,7 +87,7 @@ with 4 channels,
 
 and use the interleaved 4 channel data.
 
-There are some control switchs affecting to the speaker connections:
+There are some control switches affecting to the speaker connections:
 
 "Line-In Mode"	- an enum control to change the behavior of line-in
 	jack.  Either "Line-In", "Rear Output" or "Bass Output" can
diff --git a/Documentation/sound/alsa/compress_offload.txt b/Documentation/sound/alsa/compress_offload.txt
index fd74ff26376e..630c492c3dc2 100644
--- a/Documentation/sound/alsa/compress_offload.txt
+++ b/Documentation/sound/alsa/compress_offload.txt
@@ -217,12 +217,12 @@ Not supported:
   would be enabled with ALSA kcontrols.
 
 - Audio policy/resource management. This API does not provide any
-  hooks to query the utilization of the audio DSP, nor any premption
+  hooks to query the utilization of the audio DSP, nor any preemption
   mechanisms.
 
-- No notion of underun/overrun. Since the bytes written are compressed
+- No notion of underrun/overrun. Since the bytes written are compressed
   in nature and data written/read doesn't translate directly to
-  rendered output in time, this does not deal with underrun/overun and
+  rendered output in time, this does not deal with underrun/overrun and
   maybe dealt in user-library
 
 Credits:
diff --git a/Documentation/sound/alsa/soc/DPCM.txt b/Documentation/sound/alsa/soc/DPCM.txt
index aa8546f2d144..0110180b7ac6 100644
--- a/Documentation/sound/alsa/soc/DPCM.txt
+++ b/Documentation/sound/alsa/soc/DPCM.txt
@@ -192,7 +192,7 @@ This BE DAI link connects DAI0 to the codec (in this case RT5460 AIF1). It sets
 the "no_pcm" flag to mark it has a BE and sets flags for supported stream
 directions using "dpcm_playback" and "dpcm_capture" above.
 
-The BE has also flags set for ignoreing suspend and PM down time. This allows
+The BE has also flags set for ignoring suspend and PM down time. This allows
 the BE to work in a hostless mode where the host CPU is not transferring data
 like a BT phone call :-
 
@@ -328,7 +328,7 @@ The host can control the hostless link either by :-
     between both DAIs.
 
  2) Hostless FE. This FE has a virtual connection to the BE DAI links on the DAPM
-    graph. Control is then carried out by the FE as regualar PCM operations.
+    graph. Control is then carried out by the FE as regular PCM operations.
     This method gives more control over the DAI links, but requires much more
     userspace code to control the link. Its recommended to use CODEC<->CODEC
     unless your HW needs more fine grained sequencing of the PCM ops.
diff --git a/Documentation/sound/alsa/soc/dapm.txt b/Documentation/sound/alsa/soc/dapm.txt
index 7dfd88ce31ac..6faab4880006 100644
--- a/Documentation/sound/alsa/soc/dapm.txt
+++ b/Documentation/sound/alsa/soc/dapm.txt
@@ -30,7 +30,7 @@ There are 4 power domains within DAPM
       machine driver and responds to asynchronous events e.g when HP
       are inserted
 
-   3. Path domain - audio susbsystem signal paths
+   3. Path domain - audio subsystem signal paths
       Automatically set when mixer and mux settings are changed by the user.
       e.g. alsamixer, amixer.
 
@@ -64,7 +64,7 @@ Audio DAPM widgets fall into a number of types:-
  o Speaker    - Speaker
  o Supply     - Power or clock supply widget used by other widgets.
  o Regulator  - External regulator that supplies power to audio components.
- o Clock      -	External clock that supplies clock to audio componnents.
+ o Clock      -	External clock that supplies clock to audio components.
  o AIF IN     - Audio Interface Input (with TDM slot mask).
  o AIF OUT    - Audio Interface Output (with TDM slot mask).
  o Siggen     - Signal Generator.
-- 
cgit 


From 9f0a433ce69d63ae2c45ef801b9b1d8967165350 Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Fri, 18 Oct 2013 05:09:19 +0000
Subject: ixgbe: show <2% for encoding loss on PCIe Gen3

This patch updates the ixgbe_check_minimum_link function to correctly show that
there is some minor loss of encoding, even though we don't calculate it in the
max GT/s equation. It is small enough to not bother, but is better to report it
than not.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index ee90dfb518aa..9753c8a07e8d 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -245,7 +245,7 @@ static void ixgbe_check_minimum_link(struct ixgbe_adapter *adapter,
 		max_gts = 4 * width;
 		break;
 	case PCIE_SPEED_8_0GT:
-		/* 128b/130b encoding only reduces throughput by 1% */
+		/* 128b/130b encoding reduces throughput by less than 2% */
 		max_gts = 8 * width;
 		break;
 	default:
@@ -263,7 +263,7 @@ static void ixgbe_check_minimum_link(struct ixgbe_adapter *adapter,
 		   width,
 		   (speed == PCIE_SPEED_2_5GT ? "20%" :
 		    speed == PCIE_SPEED_5_0GT ? "20%" :
-		    speed == PCIE_SPEED_8_0GT ? "N/a" :
+		    speed == PCIE_SPEED_8_0GT ? "<2%" :
 		    "Unknown"));
 
 	if (max_gts < expected_gts) {
-- 
cgit 


From 55aa42f2e690157e254a6a6989f5f4ac928b35c8 Mon Sep 17 00:00:00 2001
From: James Bates <james.h.bates@gmail.com>
Date: Wed, 2 Oct 2013 18:43:39 +0200
Subject: efifb: prevent null-deref when iterating dmi_list

The dmi_list array is initialized using gnu designated initializers, and
therefore may contain fewer explicitly defined entries as there are
elements in it. This is because the enum above with M_xyz constants
contains more items than the designated initializer. Those elements not
explicitly initialized are implicitly set to 0.

Now efifb_setup() loops through all these array elements, and performs
a strcmp on each item. For non explicitly initialized elements this will
be a null pointer:

This patch swaps the check order in the if statement, thus checks first
whether dmi_list[i].base is null.

Signed-off-by: James Bates <james.h.bates@gmail.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/efifb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c
index 7f9ff75d0db2..fcb950031246 100644
--- a/drivers/video/efifb.c
+++ b/drivers/video/efifb.c
@@ -108,8 +108,8 @@ static int efifb_setup(char *options)
 			if (!*this_opt) continue;
 
 			for (i = 0; i < M_UNKNOWN; i++) {
-				if (!strcmp(this_opt, efifb_dmi_list[i].optname) &&
-				    efifb_dmi_list[i].base != 0) {
+				if (efifb_dmi_list[i].base != 0 &&
+				    !strcmp(this_opt, efifb_dmi_list[i].optname)) {
 					screen_info.lfb_base = efifb_dmi_list[i].base;
 					screen_info.lfb_linelength = efifb_dmi_list[i].stride;
 					screen_info.lfb_width = efifb_dmi_list[i].width;
-- 
cgit 


From 6a2aae5ae620ebf5e49f36eb937f2214c6630430 Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Fri, 18 Oct 2013 05:09:24 +0000
Subject: ixgbe: remove unnecessary duplication of PCIe bandwidth display

This patch removes the unnecessary display of PCIe bandwidth twice. Since the
ixgbe_check_minimum_link does a better job, and ensures accurate detection on
even complex chains, this older check is no longer necessary.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 36 ++++++++++-----------------
 1 file changed, 13 insertions(+), 23 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 9753c8a07e8d..a7d1a1c43f12 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -7752,29 +7752,6 @@ skip_sriov:
 	if (ixgbe_pcie_from_parent(hw))
 		ixgbe_get_parent_bus_info(adapter);
 
-	/* print bus type/speed/width info */
-	e_dev_info("(PCI Express:%s:%s) %pM\n",
-		   (hw->bus.speed == ixgbe_bus_speed_8000 ? "8.0GT/s" :
-		    hw->bus.speed == ixgbe_bus_speed_5000 ? "5.0GT/s" :
-		    hw->bus.speed == ixgbe_bus_speed_2500 ? "2.5GT/s" :
-		    "Unknown"),
-		   (hw->bus.width == ixgbe_bus_width_pcie_x8 ? "Width x8" :
-		    hw->bus.width == ixgbe_bus_width_pcie_x4 ? "Width x4" :
-		    hw->bus.width == ixgbe_bus_width_pcie_x1 ? "Width x1" :
-		    "Unknown"),
-		   netdev->dev_addr);
-
-	err = ixgbe_read_pba_string_generic(hw, part_str, IXGBE_PBANUM_LENGTH);
-	if (err)
-		strncpy(part_str, "Unknown", IXGBE_PBANUM_LENGTH);
-	if (ixgbe_is_sfp(hw) && hw->phy.sfp_type != ixgbe_sfp_type_not_present)
-		e_dev_info("MAC: %d, PHY: %d, SFP+: %d, PBA No: %s\n",
-			   hw->mac.type, hw->phy.type, hw->phy.sfp_type,
-		           part_str);
-	else
-		e_dev_info("MAC: %d, PHY: %d, PBA No: %s\n",
-			   hw->mac.type, hw->phy.type, part_str);
-
 	/* calculate the expected PCIe bandwidth required for optimal
 	 * performance. Note that some older parts will never have enough
 	 * bandwidth due to being older generation PCIe parts. We clamp these
@@ -7790,6 +7767,19 @@ skip_sriov:
 	}
 	ixgbe_check_minimum_link(adapter, expected_gts);
 
+	err = ixgbe_read_pba_string_generic(hw, part_str, IXGBE_PBANUM_LENGTH);
+	if (err)
+		strncpy(part_str, "Unknown", IXGBE_PBANUM_LENGTH);
+	if (ixgbe_is_sfp(hw) && hw->phy.sfp_type != ixgbe_sfp_type_not_present)
+		e_dev_info("MAC: %d, PHY: %d, SFP+: %d, PBA No: %s\n",
+			   hw->mac.type, hw->phy.type, hw->phy.sfp_type,
+		           part_str);
+	else
+		e_dev_info("MAC: %d, PHY: %d, PBA No: %s\n",
+			   hw->mac.type, hw->phy.type, part_str);
+
+	e_dev_info("%pM\n", netdev->dev_addr);
+
 	/* reset the hardware with the new settings */
 	err = hw->mac.ops.start_hw(hw);
 	if (err == IXGBE_ERR_EEPROM_VERSION) {
-- 
cgit 


From f51a07d05c5142e73f781d878f411d63d3548a49 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 19 Sep 2013 18:35:54 -0700
Subject: framebuffer: Add fb_<level> convenience logging macros

Add fb_<level> convenience macros for emitting the
"fb%d: ", struct fb_info->node value.

Neatens and shortens the code a bit.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 include/linux/fb.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/include/linux/fb.h b/include/linux/fb.h
index ffac70aab3e9..70c4836e4a9f 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -792,4 +792,16 @@ extern int fb_find_mode(struct fb_var_screeninfo *var,
 			const struct fb_videomode *default_mode,
 			unsigned int default_bpp);
 
+/* Convenience logging macros */
+#define fb_err(fb_info, fmt, ...)					\
+	pr_err("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)
+#define fb_notice(info, fmt, ...)					\
+	pr_notice("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)
+#define fb_warn(fb_info, fmt, ...)					\
+	pr_warn("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)
+#define fb_info(fb_info, fmt, ...)					\
+	pr_info("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)
+#define fb_dbg(fb_info, fmt, ...)					\
+	pr_debug("fb%d: " fmt, (fb_info)->node, ##__VA_ARGS__)
+
 #endif /* _LINUX_FB_H */
-- 
cgit 


From 31b6780c15a4e3a90fe260e977f5186772ce7afb Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 19 Sep 2013 18:35:55 -0700
Subject: framebuffer: Use fb_<level>

Neaten and shorten the code using the new fb_<level> macros.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/auxdisplay/cfag12864bfb.c    |  3 +-
 drivers/video/68328fb.c              |  9 +++---
 drivers/video/amifb.c                |  4 +--
 drivers/video/arcfb.c                |  8 ++---
 drivers/video/arkfb.c                | 46 +++++++++++++-------------
 drivers/video/asiliantfb.c           |  4 +--
 drivers/video/atafb.c                |  7 ++--
 drivers/video/aty/aty128fb.c         |  4 +--
 drivers/video/broadsheetfb.c         |  5 ++-
 drivers/video/carminefb.c            |  3 +-
 drivers/video/cobalt_lcdfb.c         |  3 +-
 drivers/video/controlfb.c            |  4 +--
 drivers/video/efifb.c                |  3 +-
 drivers/video/fb-puv3.c              |  5 ++-
 drivers/video/fm2fb.c                |  2 +-
 drivers/video/gbefb.c                |  6 ++--
 drivers/video/geode/gx1fb_core.c     |  2 +-
 drivers/video/geode/gxfb_core.c      |  2 +-
 drivers/video/geode/lxfb_core.c      |  3 +-
 drivers/video/gxt4500.c              |  3 +-
 drivers/video/hecubafb.c             |  5 ++-
 drivers/video/hgafb.c                |  3 +-
 drivers/video/hitfb.c                |  3 +-
 drivers/video/hpfb.c                 |  3 +-
 drivers/video/i740fb.c               |  8 ++---
 drivers/video/igafb.c                |  5 ++-
 drivers/video/imsttfb.c              |  4 +--
 drivers/video/kyro/fbdev.c           |  8 ++---
 drivers/video/macfb.c                |  3 +-
 drivers/video/matrox/matroxfb_base.c |  6 ++--
 drivers/video/mbx/mbxfb.c            |  2 +-
 drivers/video/neofb.c                |  3 +-
 drivers/video/nuc900fb.c             |  3 +-
 drivers/video/offb.c                 |  3 +-
 drivers/video/platinumfb.c           |  2 +-
 drivers/video/pm2fb.c                |  4 +--
 drivers/video/pm3fb.c                |  3 +-
 drivers/video/pmag-ba-fb.c           |  4 +--
 drivers/video/pmagb-b-fb.c           |  9 +++---
 drivers/video/pvr2fb.c               | 25 ++++++++-------
 drivers/video/q40fb.c                |  3 +-
 drivers/video/s1d13xxxfb.c           |  3 +-
 drivers/video/s3fb.c                 | 62 +++++++++++++++++++-----------------
 drivers/video/sgivwfb.c              |  4 +--
 drivers/video/sis/sis_main.c         |  4 +--
 drivers/video/skeletonfb.c           |  3 +-
 drivers/video/sstfb.c                |  8 ++---
 drivers/video/stifb.c                |  4 +--
 drivers/video/svgalib.c              |  4 +--
 drivers/video/tgafb.c                |  4 +--
 drivers/video/tmiofb.c               |  3 +-
 drivers/video/uvesafb.c              |  6 ++--
 drivers/video/valkyriefb.c           |  2 +-
 drivers/video/vesafb.c               |  3 +-
 drivers/video/vfb.c                  |  5 ++-
 drivers/video/vga16fb.c              |  3 +-
 drivers/video/vt8623fb.c             | 40 ++++++++++++-----------
 drivers/video/w100fb.c               |  5 ++-
 drivers/video/wm8505fb.c             | 12 +++----
 59 files changed, 186 insertions(+), 224 deletions(-)

diff --git a/drivers/auxdisplay/cfag12864bfb.c b/drivers/auxdisplay/cfag12864bfb.c
index d585735430dd..a3874034e2ce 100644
--- a/drivers/auxdisplay/cfag12864bfb.c
+++ b/drivers/auxdisplay/cfag12864bfb.c
@@ -102,8 +102,7 @@ static int cfag12864bfb_probe(struct platform_device *device)
 
 	platform_set_drvdata(device, info);
 
-	printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node,
-		info->fix.id);
+	fb_info(info, "%s frame buffer device\n", info->fix.id);
 
 	return 0;
 
diff --git a/drivers/video/68328fb.c b/drivers/video/68328fb.c
index fa44fbed397d..552258c8f99d 100644
--- a/drivers/video/68328fb.c
+++ b/drivers/video/68328fb.c
@@ -478,11 +478,10 @@ int __init mc68x328fb_init(void)
 		return -EINVAL;
 	}
 
-	printk(KERN_INFO
-		"fb%d: %s frame buffer device\n", fb_info.node,	fb_info.fix.id);
-	printk(KERN_INFO
-		"fb%d: %dx%dx%d at 0x%08lx\n", fb_info.node,
-		mc68x328fb_default.xres_virtual, mc68x328fb_default.yres_virtual,
+	fb_info(&fb_info, "%s frame buffer device\n", fb_info.fix.id);
+	fb_info(&fb_info, "%dx%dx%d at 0x%08lx\n",
+		mc68x328fb_default.xres_virtual,
+		mc68x328fb_default.yres_virtual,
 		1 << mc68x328fb_default.bits_per_pixel, videomemory);
 
 	return 0;
diff --git a/drivers/video/amifb.c b/drivers/video/amifb.c
index 8ab304d1c855..0dac36ce09d6 100644
--- a/drivers/video/amifb.c
+++ b/drivers/video/amifb.c
@@ -3742,8 +3742,8 @@ default_chipset:
 	if (err)
 		goto unset_drvdata;
 
-	printk("fb%d: %s frame buffer device, using %dK of video memory\n",
-	       info->node, info->fix.id, info->fix.smem_len>>10);
+	fb_info(info, "%s frame buffer device, using %dK of video memory\n",
+		info->fix.id, info->fix.smem_len>>10);
 
 	return 0;
 
diff --git a/drivers/video/arcfb.c b/drivers/video/arcfb.c
index e43401afdd03..1b0b233b8b39 100644
--- a/drivers/video/arcfb.c
+++ b/drivers/video/arcfb.c
@@ -556,9 +556,8 @@ static int arcfb_probe(struct platform_device *dev)
 			goto err1;
 		}
 	}
-	printk(KERN_INFO
-	       "fb%d: Arc frame buffer device, using %dK of video memory\n",
-	       info->node, videomemorysize >> 10);
+	fb_info(info, "Arc frame buffer device, using %dK of video memory\n",
+		videomemorysize >> 10);
 
 	/* this inits the lcd but doesn't clear dirty pixels */
 	for (i = 0; i < num_cols * num_rows; i++) {
@@ -572,8 +571,7 @@ static int arcfb_probe(struct platform_device *dev)
 	/* if we were told to splash the screen, we just clear it */
 	if (!nosplash) {
 		for (i = 0; i < num_cols * num_rows; i++) {
-			printk(KERN_INFO "fb%d: splashing lcd %d\n",
-				info->node, i);
+			fb_info(info, "splashing lcd %d\n", i);
 			ks108_set_start_line(par, i, 0);
 			ks108_clear_lcd(par, i);
 		}
diff --git a/drivers/video/arkfb.c b/drivers/video/arkfb.c
index 15dd5423d64a..a6b29bd4a12a 100644
--- a/drivers/video/arkfb.c
+++ b/drivers/video/arkfb.c
@@ -137,8 +137,7 @@ static void arkfb_settile(struct fb_info *info, struct fb_tilemap *map)
 
 	if ((map->width != 8) || (map->height != 16) ||
 	    (map->depth != 1) || (map->length != 256)) {
-	    	printk(KERN_ERR "fb%d: unsupported font parameters: width %d, "
-		       "height %d, depth %d, length %d\n", info->node,
+		fb_err(info, "unsupported font parameters: width %d, height %d, depth %d, length %d\n",
 		       map->width, map->height, map->depth, map->length);
 		return;
 	}
@@ -517,7 +516,7 @@ static void ark_set_pixclock(struct fb_info *info, u32 pixclock)
 
 	int rv = dac_set_freq(par->dac, 0, 1000000000 / pixclock);
 	if (rv < 0) {
-		printk(KERN_ERR "fb%d: cannot set requested pixclock, keeping old value\n", info->node);
+		fb_err(info, "cannot set requested pixclock, keeping old value\n");
 		return;
 	}
 
@@ -584,7 +583,7 @@ static int arkfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 	rv = svga_match_format (arkfb_formats, var, NULL);
 	if (rv < 0)
 	{
-		printk(KERN_ERR "fb%d: unsupported mode requested\n", info->node);
+		fb_err(info, "unsupported mode requested\n");
 		return rv;
 	}
 
@@ -604,14 +603,15 @@ static int arkfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 	mem = ((var->bits_per_pixel * var->xres_virtual) >> 3) * var->yres_virtual;
 	if (mem > info->screen_size)
 	{
-		printk(KERN_ERR "fb%d: not enough framebuffer memory (%d kB requested , %d kB available)\n", info->node, mem >> 10, (unsigned int) (info->screen_size >> 10));
+		fb_err(info, "not enough framebuffer memory (%d kB requested, %d kB available)\n",
+		       mem >> 10, (unsigned int) (info->screen_size >> 10));
 		return -EINVAL;
 	}
 
 	rv = svga_check_timings (&ark_timing_regs, var, info->node);
 	if (rv < 0)
 	{
-		printk(KERN_ERR "fb%d: invalid timings requested\n", info->node);
+		fb_err(info, "invalid timings requested\n");
 		return rv;
 	}
 
@@ -693,7 +693,7 @@ static int arkfb_set_par(struct fb_info *info)
 	vga_wseq(par->state.vgabase, 0x18, regval);
 
 	/* Set the offset register */
-	pr_debug("fb%d: offset register       : %d\n", info->node, offset_value);
+	fb_dbg(info, "offset register       : %d\n", offset_value);
 	svga_wcrt_multi(par->state.vgabase, ark_offset_regs, offset_value);
 
 	/* fix for hi-res textmode */
@@ -716,7 +716,7 @@ static int arkfb_set_par(struct fb_info *info)
 	/* Set mode-specific register values */
 	switch (mode) {
 	case 0:
-		pr_debug("fb%d: text mode\n", info->node);
+		fb_dbg(info, "text mode\n");
 		svga_set_textmode_vga_regs(par->state.vgabase);
 
 		vga_wseq(par->state.vgabase, 0x11, 0x10); /* basic VGA mode */
@@ -725,7 +725,7 @@ static int arkfb_set_par(struct fb_info *info)
 
 		break;
 	case 1:
-		pr_debug("fb%d: 4 bit pseudocolor\n", info->node);
+		fb_dbg(info, "4 bit pseudocolor\n");
 		vga_wgfx(par->state.vgabase, VGA_GFX_MODE, 0x40);
 
 		vga_wseq(par->state.vgabase, 0x11, 0x10); /* basic VGA mode */
@@ -733,44 +733,44 @@ static int arkfb_set_par(struct fb_info *info)
 		dac_set_mode(par->dac, DAC_PSEUDO8_8);
 		break;
 	case 2:
-		pr_debug("fb%d: 4 bit pseudocolor, planar\n", info->node);
+		fb_dbg(info, "4 bit pseudocolor, planar\n");
 
 		vga_wseq(par->state.vgabase, 0x11, 0x10); /* basic VGA mode */
 		svga_wcrt_mask(par->state.vgabase, 0x46, 0x00, 0x04); /* 8bit pixel path */
 		dac_set_mode(par->dac, DAC_PSEUDO8_8);
 		break;
 	case 3:
-		pr_debug("fb%d: 8 bit pseudocolor\n", info->node);
+		fb_dbg(info, "8 bit pseudocolor\n");
 
 		vga_wseq(par->state.vgabase, 0x11, 0x16); /* 8bpp accel mode */
 
 		if (info->var.pixclock > 20000) {
-			pr_debug("fb%d: not using multiplex\n", info->node);
+			fb_dbg(info, "not using multiplex\n");
 			svga_wcrt_mask(par->state.vgabase, 0x46, 0x00, 0x04); /* 8bit pixel path */
 			dac_set_mode(par->dac, DAC_PSEUDO8_8);
 		} else {
-			pr_debug("fb%d: using multiplex\n", info->node);
+			fb_dbg(info, "using multiplex\n");
 			svga_wcrt_mask(par->state.vgabase, 0x46, 0x04, 0x04); /* 16bit pixel path */
 			dac_set_mode(par->dac, DAC_PSEUDO8_16);
 			hdiv = 2;
 		}
 		break;
 	case 4:
-		pr_debug("fb%d: 5/5/5 truecolor\n", info->node);
+		fb_dbg(info, "5/5/5 truecolor\n");
 
 		vga_wseq(par->state.vgabase, 0x11, 0x1A); /* 16bpp accel mode */
 		svga_wcrt_mask(par->state.vgabase, 0x46, 0x04, 0x04); /* 16bit pixel path */
 		dac_set_mode(par->dac, DAC_RGB1555_16);
 		break;
 	case 5:
-		pr_debug("fb%d: 5/6/5 truecolor\n", info->node);
+		fb_dbg(info, "5/6/5 truecolor\n");
 
 		vga_wseq(par->state.vgabase, 0x11, 0x1A); /* 16bpp accel mode */
 		svga_wcrt_mask(par->state.vgabase, 0x46, 0x04, 0x04); /* 16bit pixel path */
 		dac_set_mode(par->dac, DAC_RGB0565_16);
 		break;
 	case 6:
-		pr_debug("fb%d: 8/8/8 truecolor\n", info->node);
+		fb_dbg(info, "8/8/8 truecolor\n");
 
 		vga_wseq(par->state.vgabase, 0x11, 0x16); /* 8bpp accel mode ??? */
 		svga_wcrt_mask(par->state.vgabase, 0x46, 0x04, 0x04); /* 16bit pixel path */
@@ -779,7 +779,7 @@ static int arkfb_set_par(struct fb_info *info)
 		hdiv = 2;
 		break;
 	case 7:
-		pr_debug("fb%d: 8/8/8/8 truecolor\n", info->node);
+		fb_dbg(info, "8/8/8/8 truecolor\n");
 
 		vga_wseq(par->state.vgabase, 0x11, 0x1E); /* 32bpp accel mode */
 		svga_wcrt_mask(par->state.vgabase, 0x46, 0x04, 0x04); /* 16bit pixel path */
@@ -787,7 +787,7 @@ static int arkfb_set_par(struct fb_info *info)
 		hmul = 2;
 		break;
 	default:
-		printk(KERN_ERR "fb%d: unsupported mode - bug\n", info->node);
+		fb_err(info, "unsupported mode - bug\n");
 		return -EINVAL;
 	}
 
@@ -879,19 +879,19 @@ static int arkfb_blank(int blank_mode, struct fb_info *info)
 
 	switch (blank_mode) {
 	case FB_BLANK_UNBLANK:
-		pr_debug("fb%d: unblank\n", info->node);
+		fb_dbg(info, "unblank\n");
 		svga_wseq_mask(par->state.vgabase, 0x01, 0x00, 0x20);
 		svga_wcrt_mask(par->state.vgabase, 0x17, 0x80, 0x80);
 		break;
 	case FB_BLANK_NORMAL:
-		pr_debug("fb%d: blank\n", info->node);
+		fb_dbg(info, "blank\n");
 		svga_wseq_mask(par->state.vgabase, 0x01, 0x20, 0x20);
 		svga_wcrt_mask(par->state.vgabase, 0x17, 0x80, 0x80);
 		break;
 	case FB_BLANK_POWERDOWN:
 	case FB_BLANK_HSYNC_SUSPEND:
 	case FB_BLANK_VSYNC_SUSPEND:
-		pr_debug("fb%d: sync down\n", info->node);
+		fb_dbg(info, "sync down\n");
 		svga_wseq_mask(par->state.vgabase, 0x01, 0x20, 0x20);
 		svga_wcrt_mask(par->state.vgabase, 0x17, 0x00, 0x80);
 		break;
@@ -1052,8 +1052,8 @@ static int ark_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 		goto err_reg_fb;
 	}
 
-	printk(KERN_INFO "fb%d: %s on %s, %d MB RAM\n", info->node, info->fix.id,
-		 pci_name(dev), info->fix.smem_len >> 20);
+	fb_info(info, "%s on %s, %d MB RAM\n",
+		info->fix.id, pci_name(dev), info->fix.smem_len >> 20);
 
 	/* Record a reference to the driver data */
 	pci_set_drvdata(dev, info);
diff --git a/drivers/video/asiliantfb.c b/drivers/video/asiliantfb.c
index d5a37d62847b..d611f1a1ac53 100644
--- a/drivers/video/asiliantfb.c
+++ b/drivers/video/asiliantfb.c
@@ -527,8 +527,8 @@ static int init_asiliant(struct fb_info *p, unsigned long addr)
 		return err;
 	}
 
-	printk(KERN_INFO "fb%d: Asiliant 69000 frame buffer (%dK RAM detected)\n",
-		p->node, p->fix.smem_len / 1024);
+	fb_info(p, "Asiliant 69000 frame buffer (%dK RAM detected)\n",
+		p->fix.smem_len / 1024);
 
 	writeb(0xff, mmio_base + 0x78c);
 	chips_hw_init(p);
diff --git a/drivers/video/atafb.c b/drivers/video/atafb.c
index 64e41f5448c4..e21d1f58554c 100644
--- a/drivers/video/atafb.c
+++ b/drivers/video/atafb.c
@@ -3246,11 +3246,8 @@ int __init atafb_init(void)
 		return -EINVAL;
 	}
 
-	// FIXME: mode needs setting!
-	//printk("fb%d: %s frame buffer device, using %dK of video memory\n",
-	//       fb_info.node, fb_info.mode->name, screen_len>>10);
-	printk("fb%d: frame buffer device, using %dK of video memory\n",
-	       fb_info.node, screen_len >> 10);
+	fb_info(&fb_info, "frame buffer device, using %dK of video memory\n",
+		screen_len >> 10);
 
 	/* TODO: This driver cannot be unloaded yet */
 	return 0;
diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index b5edb6f08b84..12ca031877d4 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -2027,8 +2027,8 @@ static int aty128_init(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (register_framebuffer(info) < 0)
 		return 0;
 
-	printk(KERN_INFO "fb%d: %s frame buffer device on %s\n",
-	       info->node, info->fix.id, video_card);
+	fb_info(info, "%s frame buffer device on %s\n",
+		info->fix.id, video_card);
 
 	return 1;	/* success! */
 }
diff --git a/drivers/video/broadsheetfb.c b/drivers/video/broadsheetfb.c
index 393d5a03b34e..8556264b16b7 100644
--- a/drivers/video/broadsheetfb.c
+++ b/drivers/video/broadsheetfb.c
@@ -1167,9 +1167,8 @@ static int broadsheetfb_probe(struct platform_device *dev)
 	if (retval < 0)
 		goto err_unreg_fb;
 
-	printk(KERN_INFO
-	       "fb%d: Broadsheet frame buffer, using %dK of video memory\n",
-	       info->node, videomemorysize >> 10);
+	fb_info(info, "Broadsheet frame buffer, using %dK of video memory\n",
+		videomemorysize >> 10);
 
 
 	return 0;
diff --git a/drivers/video/carminefb.c b/drivers/video/carminefb.c
index b98f709abf52..65f7c15f5fdb 100644
--- a/drivers/video/carminefb.c
+++ b/drivers/video/carminefb.c
@@ -585,8 +585,7 @@ static int alloc_carmine_fb(void __iomem *regs, void __iomem *smem_base,
 	if (ret < 0)
 		goto err_dealloc_cmap;
 
-	printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node,
-			info->fix.id);
+	fb_info(info, "%s frame buffer device\n", info->fix.id);
 
 	*rinfo = info;
 	return 0;
diff --git a/drivers/video/cobalt_lcdfb.c b/drivers/video/cobalt_lcdfb.c
index a7b0ab62b97b..d5533f4db1cf 100644
--- a/drivers/video/cobalt_lcdfb.c
+++ b/drivers/video/cobalt_lcdfb.c
@@ -368,8 +368,7 @@ static int cobalt_lcdfb_probe(struct platform_device *dev)
 
 	lcd_clear(info);
 
-	printk(KERN_INFO "fb%d: Cobalt server LCD frame buffer device\n",
-		info->node);
+	fb_info(info, "Cobalt server LCD frame buffer device\n");
 
 	return 0;
 }
diff --git a/drivers/video/controlfb.c b/drivers/video/controlfb.c
index 67b77b40aa7f..fdadef979238 100644
--- a/drivers/video/controlfb.c
+++ b/drivers/video/controlfb.c
@@ -471,8 +471,8 @@ try_again:
 	/* Register with fbdev layer */
 	if (register_framebuffer(&p->info) < 0)
 		return -ENXIO;
-	
-	printk(KERN_INFO "fb%d: control display adapter\n", p->info.node);	
+
+	fb_info(&p->info, "control display adapter\n");
 
 	return 0;
 }
diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c
index fcb950031246..cd7c0df9f24b 100644
--- a/drivers/video/efifb.c
+++ b/drivers/video/efifb.c
@@ -322,8 +322,7 @@ static int efifb_probe(struct platform_device *dev)
 		printk(KERN_ERR "efifb: cannot register framebuffer\n");
 		goto err_fb_dealoc;
 	}
-	printk(KERN_INFO "fb%d: %s frame buffer device\n",
-		info->node, info->fix.id);
+	fb_info(info, "%s frame buffer device\n", info->fix.id);
 	return 0;
 
 err_fb_dealoc:
diff --git a/drivers/video/fb-puv3.c b/drivers/video/fb-puv3.c
index 27fc956166fa..6db9ebd042a3 100644
--- a/drivers/video/fb-puv3.c
+++ b/drivers/video/fb-puv3.c
@@ -713,9 +713,8 @@ static int unifb_probe(struct platform_device *dev)
 	platform_set_drvdata(dev, info);
 	platform_device_add_data(dev, unifb_regs, sizeof(u32) * UNIFB_REGS_NUM);
 
-	printk(KERN_INFO
-	       "fb%d: Virtual frame buffer device, using %dM of video memory\n",
-	       info->node, UNIFB_MEMSIZE >> 20);
+	fb_info(info, "Virtual frame buffer device, using %dM of video memory\n",
+		UNIFB_MEMSIZE >> 20);
 	return 0;
 err2:
 	fb_dealloc_cmap(&info->cmap);
diff --git a/drivers/video/fm2fb.c b/drivers/video/fm2fb.c
index c99c9671302b..e69d47af9932 100644
--- a/drivers/video/fm2fb.c
+++ b/drivers/video/fm2fb.c
@@ -289,7 +289,7 @@ static int fm2fb_probe(struct zorro_dev *z, const struct zorro_device_id *id)
 		zorro_release_device(z);
 		return -EINVAL;
 	}
-	printk("fb%d: %s frame buffer device\n", info->node, fb_fix.id);
+	fb_info(info, "%s frame buffer device\n", fb_fix.id);
 	return 0;
 }
 
diff --git a/drivers/video/gbefb.c b/drivers/video/gbefb.c
index ceab37020fff..4c7cb368a9dc 100644
--- a/drivers/video/gbefb.c
+++ b/drivers/video/gbefb.c
@@ -1236,9 +1236,9 @@ static int gbefb_probe(struct platform_device *p_dev)
 	platform_set_drvdata(p_dev, info);
 	gbefb_create_sysfs(&p_dev->dev);
 
-	printk(KERN_INFO "fb%d: %s rev %d @ 0x%08x using %dkB memory\n",
-	       info->node, info->fix.id, gbe_revision, (unsigned) GBE_BASE,
-	       gbe_mem_size >> 10);
+	fb_info(info, "%s rev %d @ 0x%08x using %dkB memory\n",
+		info->fix.id, gbe_revision, (unsigned)GBE_BASE,
+		gbe_mem_size >> 10);
 
 	return 0;
 
diff --git a/drivers/video/geode/gx1fb_core.c b/drivers/video/geode/gx1fb_core.c
index 7551a04f5c31..2794ba11f332 100644
--- a/drivers/video/geode/gx1fb_core.c
+++ b/drivers/video/geode/gx1fb_core.c
@@ -357,7 +357,7 @@ static int gx1fb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		goto err;
 	}
 	pci_set_drvdata(pdev, info);
-	printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node, info->fix.id);
+	fb_info(info, "%s frame buffer device\n", info->fix.id);
 	return 0;
 
   err:
diff --git a/drivers/video/geode/gxfb_core.c b/drivers/video/geode/gxfb_core.c
index a42d74d6eded..1790f14bab15 100644
--- a/drivers/video/geode/gxfb_core.c
+++ b/drivers/video/geode/gxfb_core.c
@@ -423,7 +423,7 @@ static int gxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		goto err;
 	}
 	pci_set_drvdata(pdev, info);
-	printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node, info->fix.id);
+	fb_info(info, "%s frame buffer device\n", info->fix.id);
 	return 0;
 
   err:
diff --git a/drivers/video/geode/lxfb_core.c b/drivers/video/geode/lxfb_core.c
index 10de31b21d0a..9e1d19d673a1 100644
--- a/drivers/video/geode/lxfb_core.c
+++ b/drivers/video/geode/lxfb_core.c
@@ -555,8 +555,7 @@ static int lxfb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		goto err;
 	}
 	pci_set_drvdata(pdev, info);
-	printk(KERN_INFO "fb%d: %s frame buffer device\n",
-		info->node, info->fix.id);
+	fb_info(info, "%s frame buffer device\n", info->fix.id);
 
 	return 0;
 
diff --git a/drivers/video/gxt4500.c b/drivers/video/gxt4500.c
index c35663f6a54a..135d78a02588 100644
--- a/drivers/video/gxt4500.c
+++ b/drivers/video/gxt4500.c
@@ -698,8 +698,7 @@ static int gxt4500_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		dev_err(&pdev->dev, "gxt4500: cannot register framebuffer\n");
 		goto err_free_cmap;
 	}
-	printk(KERN_INFO "fb%d: %s frame buffer device\n",
-	       info->node, info->fix.id);
+	fb_info(info, "%s frame buffer device\n", info->fix.id);
 
 	return 0;
 
diff --git a/drivers/video/hecubafb.c b/drivers/video/hecubafb.c
index 702b599dc3d6..f64120ec9192 100644
--- a/drivers/video/hecubafb.c
+++ b/drivers/video/hecubafb.c
@@ -261,9 +261,8 @@ static int hecubafb_probe(struct platform_device *dev)
 		goto err_fbreg;
 	platform_set_drvdata(dev, info);
 
-	printk(KERN_INFO
-	       "fb%d: Hecuba frame buffer device, using %dK of video memory\n",
-	       info->node, videomemorysize >> 10);
+	fb_info(info, "Hecuba frame buffer device, using %dK of video memory\n",
+		videomemorysize >> 10);
 
 	/* this inits the dpy */
 	retval = par->board->init(par);
diff --git a/drivers/video/hgafb.c b/drivers/video/hgafb.c
index 1e9e2d819d1f..5ff9fe2116a4 100644
--- a/drivers/video/hgafb.c
+++ b/drivers/video/hgafb.c
@@ -586,8 +586,7 @@ static int hgafb_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-        printk(KERN_INFO "fb%d: %s frame buffer device\n",
-               info->node, info->fix.id);
+	fb_info(info, "%s frame buffer device\n", info->fix.id);
 	platform_set_drvdata(pdev, info);
 	return 0;
 }
diff --git a/drivers/video/hitfb.c b/drivers/video/hitfb.c
index c2414d6ab646..a648d5186c6e 100644
--- a/drivers/video/hitfb.c
+++ b/drivers/video/hitfb.c
@@ -405,8 +405,7 @@ static int hitfb_probe(struct platform_device *dev)
 
 	platform_set_drvdata(dev, info);
 
-	printk(KERN_INFO "fb%d: %s frame buffer device\n",
-	       info->node, info->fix.id);
+	fb_info(info, "%s frame buffer device\n", info->fix.id);
 
 	return 0;
 
diff --git a/drivers/video/hpfb.c b/drivers/video/hpfb.c
index b802f93cef5d..a1b7e5fa9b09 100644
--- a/drivers/video/hpfb.c
+++ b/drivers/video/hpfb.c
@@ -298,8 +298,7 @@ static int hpfb_init_one(unsigned long phys_base, unsigned long virt_base)
 	if (ret < 0)
 		goto dealloc_cmap;
 
-	printk(KERN_INFO "fb%d: %s frame buffer device\n",
-	       fb_info.node, fb_info.fix.id);
+	fb_info(&fb_info, "%s frame buffer device\n", fb_info.fix.id);
 
 	return 0;
 
diff --git a/drivers/video/i740fb.c b/drivers/video/i740fb.c
index 6501ac1dba0f..ca7c9df193b0 100644
--- a/drivers/video/i740fb.c
+++ b/drivers/video/i740fb.c
@@ -203,8 +203,7 @@ static int i740fb_release(struct fb_info *info, int user)
 
 	mutex_lock(&(par->open_lock));
 	if (par->ref_count == 0) {
-		printk(KERN_ERR "fb%d: release called with zero refcount\n",
-			info->node);
+		fb_err(info, "release called with zero refcount\n");
 		mutex_unlock(&(par->open_lock));
 		return -EINVAL;
 	}
@@ -1067,7 +1066,7 @@ static int i740fb_probe(struct pci_dev *dev, const struct pci_device_id *ent)
 	par->has_sgram = !((tmp & DRAM_RAS_TIMING) ||
 			   (tmp & DRAM_RAS_PRECHARGE));
 
-	printk(KERN_INFO "fb%d: Intel740 on %s, %ld KB %s\n", info->node,
+	fb_info(info, "Intel740 on %s, %ld KB %s\n",
 		pci_name(dev), info->screen_size >> 10,
 		par->has_sgram ? "SGRAM" : "SDRAM");
 
@@ -1143,8 +1142,7 @@ static int i740fb_probe(struct pci_dev *dev, const struct pci_device_id *ent)
 		goto err_reg_framebuffer;
 	}
 
-	printk(KERN_INFO "fb%d: %s frame buffer device\n",
-		info->node, info->fix.id);
+	fb_info(info, "%s frame buffer device\n", info->fix.id);
 	pci_set_drvdata(dev, info);
 #ifdef CONFIG_MTRR
 	if (mtrr) {
diff --git a/drivers/video/igafb.c b/drivers/video/igafb.c
index 79cbfa7d1a9b..486f18897414 100644
--- a/drivers/video/igafb.c
+++ b/drivers/video/igafb.c
@@ -360,9 +360,8 @@ static int __init iga_init(struct fb_info *info, struct iga_par *par)
 	if (register_framebuffer(info) < 0)
 		return 0;
 
-	printk("fb%d: %s frame buffer device at 0x%08lx [%dMB VRAM]\n",
-	       info->node, info->fix.id, 
-	       par->frame_buffer_phys, info->fix.smem_len >> 20);
+	fb_info(info, "%s frame buffer device at 0x%08lx [%dMB VRAM]\n",
+		info->fix.id, par->frame_buffer_phys, info->fix.smem_len >> 20);
 
 	iga_blank_border(par); 
 	return 1;
diff --git a/drivers/video/imsttfb.c b/drivers/video/imsttfb.c
index d5220cc90e93..aae10ce74f14 100644
--- a/drivers/video/imsttfb.c
+++ b/drivers/video/imsttfb.c
@@ -1461,8 +1461,8 @@ static void init_imstt(struct fb_info *info)
 	}
 
 	tmp = (read_reg_le32(par->dc_regs, SSTATUS) & 0x0f00) >> 8;
-	printk("fb%u: %s frame buffer; %uMB vram; chip version %u\n",
-		info->node, info->fix.id, info->fix.smem_len >> 20, tmp);
+	fb_info(info, "%s frame buffer; %uMB vram; chip version %u\n",
+		info->fix.id, info->fix.smem_len >> 20, tmp);
 }
 
 static int imsttfb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
diff --git a/drivers/video/kyro/fbdev.c b/drivers/video/kyro/fbdev.c
index 79bfb5c38409..50c857477e4f 100644
--- a/drivers/video/kyro/fbdev.c
+++ b/drivers/video/kyro/fbdev.c
@@ -735,10 +735,10 @@ static int kyrofb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (register_framebuffer(info) < 0)
 		goto out_unmap;
 
-	printk("fb%d: %s frame buffer device, at %dx%d@%d using %ldk/%ldk of VRAM\n",
-	       info->node, info->fix.id, info->var.xres,
-	       info->var.yres, info->var.bits_per_pixel, size >> 10,
-	       (unsigned long)info->fix.smem_len >> 10);
+	fb_info(info, "%s frame buffer device, at %dx%d@%d using %ldk/%ldk of VRAM\n",
+		info->fix.id,
+		info->var.xres, info->var.yres, info->var.bits_per_pixel,
+		size >> 10, (unsigned long)info->fix.smem_len >> 10);
 
 	pci_set_drvdata(pdev, info);
 
diff --git a/drivers/video/macfb.c b/drivers/video/macfb.c
index fe01add3700e..5bd2eb8d4f39 100644
--- a/drivers/video/macfb.c
+++ b/drivers/video/macfb.c
@@ -913,8 +913,7 @@ static int __init macfb_init(void)
 	if (err)
 		goto fail_dealloc;
 
-	pr_info("fb%d: %s frame buffer device\n",
-	        fb_info.node, fb_info.fix.id);
+	fb_info(&fb_info, "%s frame buffer device\n", fb_info.fix.id);
 
 	return 0;
 
diff --git a/drivers/video/matrox/matroxfb_base.c b/drivers/video/matrox/matroxfb_base.c
index 245652911650..87c64ff4546c 100644
--- a/drivers/video/matrox/matroxfb_base.c
+++ b/drivers/video/matrox/matroxfb_base.c
@@ -1893,14 +1893,12 @@ static int initMatrox2(struct matrox_fb_info *minfo, struct board *b)
 	if (register_framebuffer(&minfo->fbcon) < 0) {
 		goto failVideoIO;
 	}
-	printk("fb%d: %s frame buffer device\n",
-	       minfo->fbcon.node, minfo->fbcon.fix.id);
+	fb_info(&minfo->fbcon, "%s frame buffer device\n", minfo->fbcon.fix.id);
 
 	/* there is no console on this fb... but we have to initialize hardware
 	 * until someone tells me what is proper thing to do */
 	if (!minfo->initialized) {
-		printk(KERN_INFO "fb%d: initializing hardware\n",
-		       minfo->fbcon.node);
+		fb_info(&minfo->fbcon, "initializing hardware\n");
 		/* We have to use FB_ACTIVATE_FORCE, as we had to put vesafb_defined to the fbcon.var
 		 * already before, so register_framebuffer works correctly. */
 		vesafb_defined.activate |= FB_ACTIVATE_FORCE;
diff --git a/drivers/video/mbx/mbxfb.c b/drivers/video/mbx/mbxfb.c
index f87c4ef10b78..f0a5392f5fd3 100644
--- a/drivers/video/mbx/mbxfb.c
+++ b/drivers/video/mbx/mbxfb.c
@@ -976,7 +976,7 @@ static int mbxfb_probe(struct platform_device *dev)
 
 	platform_set_drvdata(dev, fbi);
 
-	printk(KERN_INFO "fb%d: mbx frame buffer device\n", fbi->node);
+	fb_info(fbi, "mbx frame buffer device\n");
 
 	if (mfbi->platform_probe)
 		mfbi->platform_probe(fbi);
diff --git a/drivers/video/neofb.c b/drivers/video/neofb.c
index 891b0bf841e3..5d815f31645c 100644
--- a/drivers/video/neofb.c
+++ b/drivers/video/neofb.c
@@ -2104,8 +2104,7 @@ static int neofb_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	if (err < 0)
 		goto err_reg_fb;
 
-	printk(KERN_INFO "fb%d: %s frame buffer device\n",
-	       info->node, info->fix.id);
+	fb_info(info, "%s frame buffer device\n", info->fix.id);
 
 	/*
 	 * Our driver data
diff --git a/drivers/video/nuc900fb.c b/drivers/video/nuc900fb.c
index ec32f675466d..478f9808dee4 100644
--- a/drivers/video/nuc900fb.c
+++ b/drivers/video/nuc900fb.c
@@ -647,8 +647,7 @@ static int nuc900fb_probe(struct platform_device *pdev)
 		goto free_cpufreq;
 	}
 
-	printk(KERN_INFO "fb%d: %s frame buffer device\n",
-		fbinfo->node, fbinfo->fix.id);
+	fb_info(fbinfo, "%s frame buffer device\n", fbinfo->fix.id);
 
 	return 0;
 
diff --git a/drivers/video/offb.c b/drivers/video/offb.c
index 0c4f34311eda..9dbea2223401 100644
--- a/drivers/video/offb.c
+++ b/drivers/video/offb.c
@@ -515,8 +515,7 @@ static void __init offb_init_fb(const char *name, const char *full_name,
 	if (register_framebuffer(info) < 0)
 		goto out_err;
 
-	printk(KERN_INFO "fb%d: Open Firmware frame buffer device on %s\n",
-	       info->node, full_name);
+	fb_info(info, "Open Firmware frame buffer device on %s\n", full_name);
 	return;
 
 out_err:
diff --git a/drivers/video/platinumfb.c b/drivers/video/platinumfb.c
index b644037dd5bc..4c9299576827 100644
--- a/drivers/video/platinumfb.c
+++ b/drivers/video/platinumfb.c
@@ -403,7 +403,7 @@ try_again:
 	if (rc < 0)
 		return rc;
 
-	printk(KERN_INFO "fb%d: Apple Platinum frame buffer device\n", info->node);
+	fb_info(info, "Apple Platinum frame buffer device\n");
 
 	return 0;
 }
diff --git a/drivers/video/pm2fb.c b/drivers/video/pm2fb.c
index 45d9a3fe35e7..3b85b647bc10 100644
--- a/drivers/video/pm2fb.c
+++ b/drivers/video/pm2fb.c
@@ -1694,8 +1694,8 @@ static int pm2fb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	if (retval < 0)
 		goto err_exit_all;
 
-	printk(KERN_INFO "fb%d: %s frame buffer device, memory = %dK.\n",
-	       info->node, info->fix.id, pm2fb_fix.smem_len / 1024);
+	fb_info(info, "%s frame buffer device, memory = %dK\n",
+		info->fix.id, pm2fb_fix.smem_len / 1024);
 
 	/*
 	 * Our driver data
diff --git a/drivers/video/pm3fb.c b/drivers/video/pm3fb.c
index 9c17474340cd..4bf3273d0433 100644
--- a/drivers/video/pm3fb.c
+++ b/drivers/video/pm3fb.c
@@ -1445,8 +1445,7 @@ static int pm3fb_probe(struct pci_dev *dev, const struct pci_device_id *ent)
 		retval = -EINVAL;
 		goto err_exit_all;
 	}
-	printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node,
-	   info->fix.id);
+	fb_info(info, "%s frame buffer device\n", info->fix.id);
 	pci_set_drvdata(dev, info);
 	return 0;
 
diff --git a/drivers/video/pmag-ba-fb.c b/drivers/video/pmag-ba-fb.c
index d1e46cedb1f7..914a52ba8477 100644
--- a/drivers/video/pmag-ba-fb.c
+++ b/drivers/video/pmag-ba-fb.c
@@ -212,8 +212,8 @@ static int pmagbafb_probe(struct device *dev)
 
 	get_device(dev);
 
-	pr_info("fb%d: %s frame buffer device at %s\n",
-		info->node, info->fix.id, dev_name(dev));
+	fb_info(info, "%s frame buffer device at %s\n",
+		info->fix.id, dev_name(dev));
 
 	return 0;
 
diff --git a/drivers/video/pmagb-b-fb.c b/drivers/video/pmagb-b-fb.c
index 0e1317400328..0822b6f8dddc 100644
--- a/drivers/video/pmagb-b-fb.c
+++ b/drivers/video/pmagb-b-fb.c
@@ -328,11 +328,10 @@ static int pmagbbfb_probe(struct device *dev)
 	snprintf(freq1, sizeof(freq1), "%u.%03uMHz",
 		 par->osc1 / 1000, par->osc1 % 1000);
 
-	pr_info("fb%d: %s frame buffer device at %s\n",
-		info->node, info->fix.id, dev_name(dev));
-	pr_info("fb%d: Osc0: %s, Osc1: %s, Osc%u selected\n",
-		info->node, freq0, par->osc1 ? freq1 : "disabled",
-		par->osc1 != 0);
+	fb_info(info, "%s frame buffer device at %s\n",
+		info->fix.id, dev_name(dev));
+	fb_info(info, "Osc0: %s, Osc1: %s, Osc%u selected\n",
+		freq0, par->osc1 ? freq1 : "disabled", par->osc1 != 0);
 
 	return 0;
 
diff --git a/drivers/video/pvr2fb.c b/drivers/video/pvr2fb.c
index df07860563e6..167cffff3d4e 100644
--- a/drivers/video/pvr2fb.c
+++ b/drivers/video/pvr2fb.c
@@ -817,24 +817,25 @@ static int pvr2fb_common_init(void)
 
 	rev = fb_readl(par->mmio_base + 0x04);
 
-	printk("fb%d: %s (rev %ld.%ld) frame buffer device, using %ldk/%ldk of video memory\n",
-	       fb_info->node, fb_info->fix.id, (rev >> 4) & 0x0f, rev & 0x0f,
-	       modememused >> 10, (unsigned long)(fb_info->fix.smem_len >> 10));
-	printk("fb%d: Mode %dx%d-%d pitch = %ld cable: %s video output: %s\n",
-	       fb_info->node, fb_info->var.xres, fb_info->var.yres,
-	       fb_info->var.bits_per_pixel,
-	       get_line_length(fb_info->var.xres, fb_info->var.bits_per_pixel),
-	       (char *)pvr2_get_param(cables, NULL, cable_type, 3),
-	       (char *)pvr2_get_param(outputs, NULL, video_output, 3));
+	fb_info(fb_info, "%s (rev %ld.%ld) frame buffer device, using %ldk/%ldk of video memory\n",
+		fb_info->fix.id, (rev >> 4) & 0x0f, rev & 0x0f,
+		modememused >> 10,
+		(unsigned long)(fb_info->fix.smem_len >> 10));
+	fb_info(fb_info, "Mode %dx%d-%d pitch = %ld cable: %s video output: %s\n",
+		fb_info->var.xres, fb_info->var.yres,
+		fb_info->var.bits_per_pixel,
+		get_line_length(fb_info->var.xres, fb_info->var.bits_per_pixel),
+		(char *)pvr2_get_param(cables, NULL, cable_type, 3),
+		(char *)pvr2_get_param(outputs, NULL, video_output, 3));
 
 #ifdef CONFIG_SH_STORE_QUEUES
-	printk(KERN_NOTICE "fb%d: registering with SQ API\n", fb_info->node);
+	fb_notice(fb_info, "registering with SQ API\n");
 
 	pvr2fb_map = sq_remap(fb_info->fix.smem_start, fb_info->fix.smem_len,
 			      fb_info->fix.id, PAGE_SHARED);
 
-	printk(KERN_NOTICE "fb%d: Mapped video memory to SQ addr 0x%lx\n",
-	       fb_info->node, pvr2fb_map);
+	fb_notice(fb_info, "Mapped video memory to SQ addr 0x%lx\n",
+		  pvr2fb_map);
 #endif
 
 	return 0;
diff --git a/drivers/video/q40fb.c b/drivers/video/q40fb.c
index d44c7351de0f..7487f76f6275 100644
--- a/drivers/video/q40fb.c
+++ b/drivers/video/q40fb.c
@@ -119,8 +119,7 @@ static int q40fb_probe(struct platform_device *dev)
 		return -EINVAL;
 	}
 
-        printk(KERN_INFO "fb%d: Q40 frame buffer alive and kicking !\n",
-	       info->node);
+	fb_info(info, "Q40 frame buffer alive and kicking !\n");
 	return 0;
 }
 
diff --git a/drivers/video/s1d13xxxfb.c b/drivers/video/s1d13xxxfb.c
index 1399a469f8b0..83433cb0dfba 100644
--- a/drivers/video/s1d13xxxfb.c
+++ b/drivers/video/s1d13xxxfb.c
@@ -901,8 +901,7 @@ static int s1d13xxxfb_probe(struct platform_device *pdev)
 		goto bail;
 	}
 
-	printk(KERN_INFO "fb%d: %s frame buffer device\n",
-	       info->node, info->fix.id);
+	fb_info(info, "%s frame buffer device\n", info->fix.id);
 
 	return 0;
 
diff --git a/drivers/video/s3fb.c b/drivers/video/s3fb.c
index d158d2c0460f..d4436f587a95 100644
--- a/drivers/video/s3fb.c
+++ b/drivers/video/s3fb.c
@@ -306,8 +306,8 @@ static void s3fb_settile_fast(struct fb_info *info, struct fb_tilemap *map)
 
 	if ((map->width != 8) || (map->height != 16) ||
 	    (map->depth != 1) || (map->length != 256)) {
-	    	printk(KERN_ERR "fb%d: unsupported font parameters: width %d, height %d, depth %d, length %d\n",
-			info->node, map->width, map->height, map->depth, map->length);
+		fb_err(info, "unsupported font parameters: width %d, height %d, depth %d, length %d\n",
+		       map->width, map->height, map->depth, map->length);
 		return;
 	}
 
@@ -476,7 +476,7 @@ static void s3_set_pixclock(struct fb_info *info, u32 pixclock)
 	rv = svga_compute_pll((par->chip == CHIP_365_TRIO3D) ? &s3_trio3d_pll : &s3_pll,
 			      1000000000 / pixclock, &m, &n, &r, info->node);
 	if (rv < 0) {
-		printk(KERN_ERR "fb%d: cannot set requested pixclock, keeping old value\n", info->node);
+		fb_err(info, "cannot set requested pixclock, keeping old value\n");
 		return;
 	}
 
@@ -569,7 +569,7 @@ static int s3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 		rv = -EINVAL;
 
 	if (rv < 0) {
-		printk(KERN_ERR "fb%d: unsupported mode requested\n", info->node);
+		fb_err(info, "unsupported mode requested\n");
 		return rv;
 	}
 
@@ -587,22 +587,21 @@ static int s3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 	/* Check whether have enough memory */
 	mem = ((var->bits_per_pixel * var->xres_virtual) >> 3) * var->yres_virtual;
 	if (mem > info->screen_size) {
-		printk(KERN_ERR "fb%d: not enough framebuffer memory (%d kB requested , %d kB available)\n",
-			info->node, mem >> 10, (unsigned int) (info->screen_size >> 10));
+		fb_err(info, "not enough framebuffer memory (%d kB requested , %u kB available)\n",
+		       mem >> 10, (unsigned int) (info->screen_size >> 10));
 		return -EINVAL;
 	}
 
 	rv = svga_check_timings (&s3_timing_regs, var, info->node);
 	if (rv < 0) {
-		printk(KERN_ERR "fb%d: invalid timings requested\n", info->node);
+		fb_err(info, "invalid timings requested\n");
 		return rv;
 	}
 
 	rv = svga_compute_pll(&s3_pll, PICOS2KHZ(var->pixclock), &m, &n, &r,
 				info->node);
 	if (rv < 0) {
-		printk(KERN_ERR "fb%d: invalid pixclock value requested\n",
-			info->node);
+		fb_err(info, "invalid pixclock value requested\n");
 		return rv;
 	}
 
@@ -686,7 +685,7 @@ static int s3fb_set_par(struct fb_info *info)
 
 
 	/* Set the offset register */
-	pr_debug("fb%d: offset register       : %d\n", info->node, offset_value);
+	fb_dbg(info, "offset register       : %d\n", offset_value);
 	svga_wcrt_multi(par->state.vgabase, s3_offset_regs, offset_value);
 
 	if (par->chip != CHIP_357_VIRGE_GX2 &&
@@ -769,7 +768,7 @@ static int s3fb_set_par(struct fb_info *info)
 	/* Set mode-specific register values */
 	switch (mode) {
 	case 0:
-		pr_debug("fb%d: text mode\n", info->node);
+		fb_dbg(info, "text mode\n");
 		svga_set_textmode_vga_regs(par->state.vgabase);
 
 		/* Set additional registers like in 8-bit mode */
@@ -780,12 +779,12 @@ static int s3fb_set_par(struct fb_info *info)
 		svga_wcrt_mask(par->state.vgabase, 0x3A, 0x00, 0x30);
 
 		if (fasttext) {
-			pr_debug("fb%d: high speed text mode set\n", info->node);
+			fb_dbg(info, "high speed text mode set\n");
 			svga_wcrt_mask(par->state.vgabase, 0x31, 0x40, 0x40);
 		}
 		break;
 	case 1:
-		pr_debug("fb%d: 4 bit pseudocolor\n", info->node);
+		fb_dbg(info, "4 bit pseudocolor\n");
 		vga_wgfx(par->state.vgabase, VGA_GFX_MODE, 0x40);
 
 		/* Set additional registers like in 8-bit mode */
@@ -796,7 +795,7 @@ static int s3fb_set_par(struct fb_info *info)
 		svga_wcrt_mask(par->state.vgabase, 0x3A, 0x00, 0x30);
 		break;
 	case 2:
-		pr_debug("fb%d: 4 bit pseudocolor, planar\n", info->node);
+		fb_dbg(info, "4 bit pseudocolor, planar\n");
 
 		/* Set additional registers like in 8-bit mode */
 		svga_wcrt_mask(par->state.vgabase, 0x50, 0x00, 0x30);
@@ -806,7 +805,7 @@ static int s3fb_set_par(struct fb_info *info)
 		svga_wcrt_mask(par->state.vgabase, 0x3A, 0x00, 0x30);
 		break;
 	case 3:
-		pr_debug("fb%d: 8 bit pseudocolor\n", info->node);
+		fb_dbg(info, "8 bit pseudocolor\n");
 		svga_wcrt_mask(par->state.vgabase, 0x50, 0x00, 0x30);
 		if (info->var.pixclock > 20000 ||
 		    par->chip == CHIP_357_VIRGE_GX2 ||
@@ -822,7 +821,7 @@ static int s3fb_set_par(struct fb_info *info)
 		}
 		break;
 	case 4:
-		pr_debug("fb%d: 5/5/5 truecolor\n", info->node);
+		fb_dbg(info, "5/5/5 truecolor\n");
 		if (par->chip == CHIP_988_VIRGE_VX) {
 			if (info->var.pixclock > 20000)
 				svga_wcrt_mask(par->state.vgabase, 0x67, 0x20, 0xF0);
@@ -850,7 +849,7 @@ static int s3fb_set_par(struct fb_info *info)
 		}
 		break;
 	case 5:
-		pr_debug("fb%d: 5/6/5 truecolor\n", info->node);
+		fb_dbg(info, "5/6/5 truecolor\n");
 		if (par->chip == CHIP_988_VIRGE_VX) {
 			if (info->var.pixclock > 20000)
 				svga_wcrt_mask(par->state.vgabase, 0x67, 0x40, 0xF0);
@@ -879,16 +878,16 @@ static int s3fb_set_par(struct fb_info *info)
 		break;
 	case 6:
 		/* VIRGE VX case */
-		pr_debug("fb%d: 8/8/8 truecolor\n", info->node);
+		fb_dbg(info, "8/8/8 truecolor\n");
 		svga_wcrt_mask(par->state.vgabase, 0x67, 0xD0, 0xF0);
 		break;
 	case 7:
-		pr_debug("fb%d: 8/8/8/8 truecolor\n", info->node);
+		fb_dbg(info, "8/8/8/8 truecolor\n");
 		svga_wcrt_mask(par->state.vgabase, 0x50, 0x30, 0x30);
 		svga_wcrt_mask(par->state.vgabase, 0x67, 0xD0, 0xF0);
 		break;
 	default:
-		printk(KERN_ERR "fb%d: unsupported mode - bug\n", info->node);
+		fb_err(info, "unsupported mode - bug\n");
 		return -EINVAL;
 	}
 
@@ -991,27 +990,27 @@ static int s3fb_blank(int blank_mode, struct fb_info *info)
 
 	switch (blank_mode) {
 	case FB_BLANK_UNBLANK:
-		pr_debug("fb%d: unblank\n", info->node);
+		fb_dbg(info, "unblank\n");
 		svga_wcrt_mask(par->state.vgabase, 0x56, 0x00, 0x06);
 		svga_wseq_mask(par->state.vgabase, 0x01, 0x00, 0x20);
 		break;
 	case FB_BLANK_NORMAL:
-		pr_debug("fb%d: blank\n", info->node);
+		fb_dbg(info, "blank\n");
 		svga_wcrt_mask(par->state.vgabase, 0x56, 0x00, 0x06);
 		svga_wseq_mask(par->state.vgabase, 0x01, 0x20, 0x20);
 		break;
 	case FB_BLANK_HSYNC_SUSPEND:
-		pr_debug("fb%d: hsync\n", info->node);
+		fb_dbg(info, "hsync\n");
 		svga_wcrt_mask(par->state.vgabase, 0x56, 0x02, 0x06);
 		svga_wseq_mask(par->state.vgabase, 0x01, 0x20, 0x20);
 		break;
 	case FB_BLANK_VSYNC_SUSPEND:
-		pr_debug("fb%d: vsync\n", info->node);
+		fb_dbg(info, "vsync\n");
 		svga_wcrt_mask(par->state.vgabase, 0x56, 0x04, 0x06);
 		svga_wseq_mask(par->state.vgabase, 0x01, 0x20, 0x20);
 		break;
 	case FB_BLANK_POWERDOWN:
-		pr_debug("fb%d: sync down\n", info->node);
+		fb_dbg(info, "sync down\n");
 		svga_wcrt_mask(par->state.vgabase, 0x56, 0x06, 0x06);
 		svga_wseq_mask(par->state.vgabase, 0x01, 0x20, 0x20);
 		break;
@@ -1359,13 +1358,16 @@ static int s3_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 		goto err_reg_fb;
 	}
 
-	printk(KERN_INFO "fb%d: %s on %s, %d MB RAM, %d MHz MCLK\n", info->node, info->fix.id,
-		 pci_name(dev), info->fix.smem_len >> 20, (par->mclk_freq + 500) / 1000);
+	fb_info(info, "%s on %s, %d MB RAM, %d MHz MCLK\n",
+		info->fix.id, pci_name(dev),
+		info->fix.smem_len >> 20, (par->mclk_freq + 500) / 1000);
 
 	if (par->chip == CHIP_UNKNOWN)
-		printk(KERN_INFO "fb%d: unknown chip, CR2D=%x, CR2E=%x, CRT2F=%x, CRT30=%x\n",
-			info->node, vga_rcrt(par->state.vgabase, 0x2d), vga_rcrt(par->state.vgabase, 0x2e),
-			vga_rcrt(par->state.vgabase, 0x2f), vga_rcrt(par->state.vgabase, 0x30));
+		fb_info(info, "unknown chip, CR2D=%x, CR2E=%x, CRT2F=%x, CRT30=%x\n",
+			vga_rcrt(par->state.vgabase, 0x2d),
+			vga_rcrt(par->state.vgabase, 0x2e),
+			vga_rcrt(par->state.vgabase, 0x2f),
+			vga_rcrt(par->state.vgabase, 0x30));
 
 	/* Record a reference to the driver data */
 	pci_set_drvdata(dev, info);
diff --git a/drivers/video/sgivwfb.c b/drivers/video/sgivwfb.c
index a9ac3ce2d0e9..bc74d0408998 100644
--- a/drivers/video/sgivwfb.c
+++ b/drivers/video/sgivwfb.c
@@ -803,8 +803,8 @@ static int sgivwfb_probe(struct platform_device *dev)
 
 	platform_set_drvdata(dev, info);
 
-	printk(KERN_INFO "fb%d: SGI DBE frame buffer device, using %ldK of video memory at %#lx\n",      
-		info->node, sgivwfb_mem_size >> 10, sgivwfb_mem_phys);
+	fb_info(info, "SGI DBE frame buffer device, using %ldK of video memory at %#lx\n",
+		sgivwfb_mem_size >> 10, sgivwfb_mem_phys);
 	return 0;
 
 fail_register_framebuffer:
diff --git a/drivers/video/sis/sis_main.c b/drivers/video/sis/sis_main.c
index 793b40238fca..22ad028bf123 100644
--- a/drivers/video/sis/sis_main.c
+++ b/drivers/video/sis/sis_main.c
@@ -6478,8 +6478,8 @@ error_3:	vfree(ivideo->bios_abase);
 									"disabled");
 
 
-		printk(KERN_INFO "fb%d: %s frame buffer device version %d.%d.%d\n",
-			sis_fb_info->node, ivideo->myid, VER_MAJOR, VER_MINOR, VER_LEVEL);
+		fb_info(sis_fb_info, "%s frame buffer device version %d.%d.%d\n",
+			ivideo->myid, VER_MAJOR, VER_MINOR, VER_LEVEL);
 
 		printk(KERN_INFO "sisfb: Copyright (C) 2001-2005 Thomas Winischhofer\n");
 
diff --git a/drivers/video/skeletonfb.c b/drivers/video/skeletonfb.c
index 2d4694c6b9e0..fefde7c6add7 100644
--- a/drivers/video/skeletonfb.c
+++ b/drivers/video/skeletonfb.c
@@ -824,8 +824,7 @@ static int xxxfb_probe(struct pci_dev *dev, const struct pci_device_id *ent)
 	fb_dealloc_cmap(&info->cmap);
 	return -EINVAL;
     }
-    printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node,
-	   info->fix.id);
+    fb_info(info, "%s frame buffer device\n", info->fix.id);
     pci_set_drvdata(dev, info); /* or platform_set_drvdata(pdev, info) */
     return 0;
 }
diff --git a/drivers/video/sstfb.c b/drivers/video/sstfb.c
index 9c00026e3ae2..f0cb279ef333 100644
--- a/drivers/video/sstfb.c
+++ b/drivers/video/sstfb.c
@@ -706,10 +706,10 @@ static void sstfb_setvgapass( struct fb_info *info, int enable )
 	fbiinit0 = sst_read (FBIINIT0);
 	if (par->vgapass) {
 		sst_write(FBIINIT0, fbiinit0 & ~DIS_VGA_PASSTHROUGH);
-		printk(KERN_INFO "fb%d: Enabling VGA pass-through\n", info->node );
+		fb_info(info, "Enabling VGA pass-through\n");
 	} else {
 		sst_write(FBIINIT0, fbiinit0 | DIS_VGA_PASSTHROUGH);
-		printk(KERN_INFO "fb%d: Disabling VGA pass-through\n", info->node );
+		fb_info(info, "Disabling VGA pass-through\n");
 	}
 	pci_write_config_dword(sst_dev, PCI_INIT_ENABLE, tmp);
 }
@@ -1437,8 +1437,8 @@ static int sstfb_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		printk(KERN_WARNING "sstfb: can't create sysfs entry.\n");
 
 
-	printk(KERN_INFO "fb%d: %s frame buffer device at 0x%p\n",
-	       info->node, fix->id, info->screen_base);
+	fb_info(info, "%s frame buffer device at 0x%p\n",
+		fix->id, info->screen_base);
 
 	return 0;
 
diff --git a/drivers/video/stifb.c b/drivers/video/stifb.c
index 876648e15e9d..a943a7cbaf7f 100644
--- a/drivers/video/stifb.c
+++ b/drivers/video/stifb.c
@@ -1283,9 +1283,7 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref)
 
 	sti->info = info; /* save for unregister_framebuffer() */
 
-	printk(KERN_INFO 
-	    "fb%d: %s %dx%d-%d frame buffer device, %s, id: %04x, mmio: 0x%04lx\n",
-		fb->info.node, 
+	fb_info(&fb->info, "%s %dx%d-%d frame buffer device, %s, id: %04x, mmio: 0x%04lx\n",
 		fix->id,
 		var->xres, 
 		var->yres,
diff --git a/drivers/video/svgalib.c b/drivers/video/svgalib.c
index 33df9ec91795..9e01322fabe3 100644
--- a/drivers/video/svgalib.c
+++ b/drivers/video/svgalib.c
@@ -198,8 +198,8 @@ void svga_settile(struct fb_info *info, struct fb_tilemap *map)
 
 	if ((map->width != 8) || (map->height != 16) ||
 	    (map->depth != 1) || (map->length != 256)) {
-	    	printk(KERN_ERR "fb%d: unsupported font parameters: width %d, height %d, depth %d, length %d\n",
-			info->node, map->width, map->height, map->depth, map->length);
+		fb_err(info, "unsupported font parameters: width %d, height %d, depth %d, length %d\n",
+		       map->width, map->height, map->depth, map->length);
 		return;
 	}
 
diff --git a/drivers/video/tgafb.c b/drivers/video/tgafb.c
index c9c8e5a1fdee..f28674fea909 100644
--- a/drivers/video/tgafb.c
+++ b/drivers/video/tgafb.c
@@ -1671,8 +1671,8 @@ static int tgafb_register(struct device *dev)
 	if (tga_bus_tc)
 		pr_info("tgafb: SFB+ detected, rev=0x%02x\n",
 			par->tga_chip_rev);
-	pr_info("fb%d: %s frame buffer device at 0x%lx\n",
-		info->node, info->fix.id, (long)bar0_start);
+	fb_info(info, "%s frame buffer device at 0x%lx\n",
+		info->fix.id, (long)bar0_start);
 
 	return 0;
 
diff --git a/drivers/video/tmiofb.c b/drivers/video/tmiofb.c
index b5b69a6b9dd8..7fb4e321a431 100644
--- a/drivers/video/tmiofb.c
+++ b/drivers/video/tmiofb.c
@@ -781,8 +781,7 @@ static int tmiofb_probe(struct platform_device *dev)
 	if (retval < 0)
 		goto err_register_framebuffer;
 
-	printk(KERN_INFO "fb%d: %s frame buffer device\n",
-				info->node, info->fix.id);
+	fb_info(info, "%s frame buffer device\n", info->fix.id);
 
 	return 0;
 
diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c
index 676a4b9379d9..256fba7f4641 100644
--- a/drivers/video/uvesafb.c
+++ b/drivers/video/uvesafb.c
@@ -1770,13 +1770,11 @@ static int uvesafb_probe(struct platform_device *dev)
 			"using %dk, total %dk\n", info->fix.smem_start,
 			info->screen_base, info->fix.smem_len/1024,
 			par->vbe_ib.total_memory * 64);
-	printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node,
-			info->fix.id);
+	fb_info(info, "%s frame buffer device\n", info->fix.id);
 
 	err = sysfs_create_group(&dev->dev.kobj, &uvesafb_dev_attgrp);
 	if (err != 0)
-		printk(KERN_WARNING "fb%d: failed to register attributes\n",
-			info->node);
+		fb_warn(info, "failed to register attributes\n");
 
 	return 0;
 
diff --git a/drivers/video/valkyriefb.c b/drivers/video/valkyriefb.c
index 3f5a041601da..e287ebc47817 100644
--- a/drivers/video/valkyriefb.c
+++ b/drivers/video/valkyriefb.c
@@ -392,7 +392,7 @@ int __init valkyriefb_init(void)
 	if ((err = register_framebuffer(&p->info)) != 0)
 		goto out_cmap_free;
 
-	printk(KERN_INFO "fb%d: valkyrie frame buffer device\n", p->info.node);
+	fb_info(&p->info, "valkyrie frame buffer device\n");
 	return 0;
 
  out_cmap_free:
diff --git a/drivers/video/vesafb.c b/drivers/video/vesafb.c
index bd83233ec227..1c7da3b098d6 100644
--- a/drivers/video/vesafb.c
+++ b/drivers/video/vesafb.c
@@ -489,8 +489,7 @@ static int vesafb_probe(struct platform_device *dev)
 		fb_dealloc_cmap(&info->cmap);
 		goto err;
 	}
-	printk(KERN_INFO "fb%d: %s frame buffer device\n",
-	       info->node, info->fix.id);
+	fb_info(info, "%s frame buffer device\n", info->fix.id);
 	return 0;
 err:
 	if (info->screen_base)
diff --git a/drivers/video/vfb.c b/drivers/video/vfb.c
index ea2b523f804f..70a897b1e458 100644
--- a/drivers/video/vfb.c
+++ b/drivers/video/vfb.c
@@ -526,9 +526,8 @@ static int vfb_probe(struct platform_device *dev)
 		goto err2;
 	platform_set_drvdata(dev, info);
 
-	printk(KERN_INFO
-	       "fb%d: Virtual frame buffer device, using %ldK of video memory\n",
-	       info->node, videomemorysize >> 10);
+	fb_info(info, "Virtual frame buffer device, using %ldK of video memory\n",
+		videomemorysize >> 10);
 	return 0;
 err2:
 	fb_dealloc_cmap(&info->cmap);
diff --git a/drivers/video/vga16fb.c b/drivers/video/vga16fb.c
index 2827333703d9..283d335a759f 100644
--- a/drivers/video/vga16fb.c
+++ b/drivers/video/vga16fb.c
@@ -1377,8 +1377,7 @@ static int vga16fb_probe(struct platform_device *dev)
 		goto err_check_var;
 	}
 
-	printk(KERN_INFO "fb%d: %s frame buffer device\n",
-	       info->node, info->fix.id);
+	fb_info(info, "%s frame buffer device\n", info->fix.id);
 	platform_set_drvdata(dev, info);
 
 	return 0;
diff --git a/drivers/video/vt8623fb.c b/drivers/video/vt8623fb.c
index 6b424ddd6793..8bc6e0958a09 100644
--- a/drivers/video/vt8623fb.c
+++ b/drivers/video/vt8623fb.c
@@ -266,7 +266,7 @@ static void vt8623_set_pixclock(struct fb_info *info, u32 pixclock)
 
 	rv = svga_compute_pll(&vt8623_pll, 1000000000 / pixclock, &m, &n, &r, info->node);
 	if (rv < 0) {
-		printk(KERN_ERR "fb%d: cannot set requested pixclock, keeping old value\n", info->node);
+		fb_err(info, "cannot set requested pixclock, keeping old value\n");
 		return;
 	}
 
@@ -335,7 +335,7 @@ static int vt8623fb_check_var(struct fb_var_screeninfo *var, struct fb_info *inf
 	rv = svga_match_format (vt8623fb_formats, var, NULL);
 	if (rv < 0)
 	{
-		printk(KERN_ERR "fb%d: unsupported mode requested\n", info->node);
+		fb_err(info, "unsupported mode requested\n");
 		return rv;
 	}
 
@@ -354,21 +354,23 @@ static int vt8623fb_check_var(struct fb_var_screeninfo *var, struct fb_info *inf
 	mem = ((var->bits_per_pixel * var->xres_virtual) >> 3) * var->yres_virtual;
 	if (mem > info->screen_size)
 	{
-		printk(KERN_ERR "fb%d: not enough framebuffer memory (%d kB requested , %d kB available)\n", info->node, mem >> 10, (unsigned int) (info->screen_size >> 10));
+		fb_err(info, "not enough framebuffer memory (%d kB requested, %d kB available)\n",
+		       mem >> 10, (unsigned int) (info->screen_size >> 10));
 		return -EINVAL;
 	}
 
 	/* Text mode is limited to 256 kB of memory */
 	if ((var->bits_per_pixel == 0) && (mem > (256*1024)))
 	{
-		printk(KERN_ERR "fb%d: text framebuffer size too large (%d kB requested, 256 kB possible)\n", info->node, mem >> 10);
+		fb_err(info, "text framebuffer size too large (%d kB requested, 256 kB possible)\n",
+		       mem >> 10);
 		return -EINVAL;
 	}
 
 	rv = svga_check_timings (&vt8623_timing_regs, var, info->node);
 	if (rv < 0)
 	{
-		printk(KERN_ERR "fb%d: invalid timings requested\n", info->node);
+		fb_err(info, "invalid timings requested\n");
 		return rv;
 	}
 
@@ -474,32 +476,32 @@ static int vt8623fb_set_par(struct fb_info *info)
 	mode = svga_match_format(vt8623fb_formats, &(info->var), &(info->fix));
 	switch (mode) {
 	case 0:
-		pr_debug("fb%d: text mode\n", info->node);
+		fb_dbg(info, "text mode\n");
 		svga_set_textmode_vga_regs(par->state.vgabase);
 		svga_wseq_mask(par->state.vgabase, 0x15, 0x00, 0xFE);
 		svga_wcrt_mask(par->state.vgabase, 0x11, 0x60, 0x70);
 		break;
 	case 1:
-		pr_debug("fb%d: 4 bit pseudocolor\n", info->node);
+		fb_dbg(info, "4 bit pseudocolor\n");
 		vga_wgfx(par->state.vgabase, VGA_GFX_MODE, 0x40);
 		svga_wseq_mask(par->state.vgabase, 0x15, 0x20, 0xFE);
 		svga_wcrt_mask(par->state.vgabase, 0x11, 0x00, 0x70);
 		break;
 	case 2:
-		pr_debug("fb%d: 4 bit pseudocolor, planar\n", info->node);
+		fb_dbg(info, "4 bit pseudocolor, planar\n");
 		svga_wseq_mask(par->state.vgabase, 0x15, 0x00, 0xFE);
 		svga_wcrt_mask(par->state.vgabase, 0x11, 0x00, 0x70);
 		break;
 	case 3:
-		pr_debug("fb%d: 8 bit pseudocolor\n", info->node);
+		fb_dbg(info, "8 bit pseudocolor\n");
 		svga_wseq_mask(par->state.vgabase, 0x15, 0x22, 0xFE);
 		break;
 	case 4:
-		pr_debug("fb%d: 5/6/5 truecolor\n", info->node);
+		fb_dbg(info, "5/6/5 truecolor\n");
 		svga_wseq_mask(par->state.vgabase, 0x15, 0xB6, 0xFE);
 		break;
 	case 5:
-		pr_debug("fb%d: 8/8/8 truecolor\n", info->node);
+		fb_dbg(info, "8/8/8 truecolor\n");
 		svga_wseq_mask(par->state.vgabase, 0x15, 0xAE, 0xFE);
 		break;
 	default:
@@ -584,27 +586,27 @@ static int vt8623fb_blank(int blank_mode, struct fb_info *info)
 
 	switch (blank_mode) {
 	case FB_BLANK_UNBLANK:
-		pr_debug("fb%d: unblank\n", info->node);
+		fb_dbg(info, "unblank\n");
 		svga_wcrt_mask(par->state.vgabase, 0x36, 0x00, 0x30);
 		svga_wseq_mask(par->state.vgabase, 0x01, 0x00, 0x20);
 		break;
 	case FB_BLANK_NORMAL:
-		pr_debug("fb%d: blank\n", info->node);
+		fb_dbg(info, "blank\n");
 		svga_wcrt_mask(par->state.vgabase, 0x36, 0x00, 0x30);
 		svga_wseq_mask(par->state.vgabase, 0x01, 0x20, 0x20);
 		break;
 	case FB_BLANK_HSYNC_SUSPEND:
-		pr_debug("fb%d: DPMS standby (hsync off)\n", info->node);
+		fb_dbg(info, "DPMS standby (hsync off)\n");
 		svga_wcrt_mask(par->state.vgabase, 0x36, 0x10, 0x30);
 		svga_wseq_mask(par->state.vgabase, 0x01, 0x20, 0x20);
 		break;
 	case FB_BLANK_VSYNC_SUSPEND:
-		pr_debug("fb%d: DPMS suspend (vsync off)\n", info->node);
+		fb_dbg(info, "DPMS suspend (vsync off)\n");
 		svga_wcrt_mask(par->state.vgabase, 0x36, 0x20, 0x30);
 		svga_wseq_mask(par->state.vgabase, 0x01, 0x20, 0x20);
 		break;
 	case FB_BLANK_POWERDOWN:
-		pr_debug("fb%d: DPMS off (no sync)\n", info->node);
+		fb_dbg(info, "DPMS off (no sync)\n");
 		svga_wcrt_mask(par->state.vgabase, 0x36, 0x30, 0x30);
 		svga_wseq_mask(par->state.vgabase, 0x01, 0x20, 0x20);
 		break;
@@ -769,12 +771,12 @@ static int vt8623_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
 
 	rc = register_framebuffer(info);
 	if (rc < 0) {
-		dev_err(info->device, "cannot register framebugger\n");
+		dev_err(info->device, "cannot register framebuffer\n");
 		goto err_reg_fb;
 	}
 
-	printk(KERN_INFO "fb%d: %s on %s, %d MB RAM\n", info->node, info->fix.id,
-		 pci_name(dev), info->fix.smem_len >> 20);
+	fb_info(info, "%s on %s, %d MB RAM\n",
+		info->fix.id, pci_name(dev), info->fix.smem_len >> 20);
 
 	/* Record a reference to the driver data */
 	pci_set_drvdata(dev, info);
diff --git a/drivers/video/w100fb.c b/drivers/video/w100fb.c
index 2a0437a6d838..10951c82f6ed 100644
--- a/drivers/video/w100fb.c
+++ b/drivers/video/w100fb.c
@@ -761,10 +761,9 @@ int w100fb_probe(struct platform_device *pdev)
 	err |= device_create_file(&pdev->dev, &dev_attr_flip);
 
 	if (err != 0)
-		printk(KERN_WARNING "fb%d: failed to register attributes (%d)\n",
-				info->node, err);
+		fb_warn(info, "failed to register attributes (%d)\n", err);
 
-	printk(KERN_INFO "fb%d: %s frame buffer device\n", info->node, info->fix.id);
+	fb_info(info, "%s frame buffer device\n", info->fix.id);
 	return 0;
 out:
 	if (info) {
diff --git a/drivers/video/wm8505fb.c b/drivers/video/wm8505fb.c
index 2bf618037b13..537d199612af 100644
--- a/drivers/video/wm8505fb.c
+++ b/drivers/video/wm8505fb.c
@@ -372,14 +372,12 @@ static int wm8505fb_probe(struct platform_device *pdev)
 	}
 
 	ret = device_create_file(&pdev->dev, &dev_attr_contrast);
-	if (ret < 0) {
-		printk(KERN_WARNING "fb%d: failed to register attributes (%d)\n",
-			fbi->fb.node, ret);
-	}
+	if (ret < 0)
+		fb_warn(&fbi->fb, "failed to register attributes (%d)\n", ret);
 
-	printk(KERN_INFO "fb%d: %s frame buffer at 0x%lx-0x%lx\n",
-	       fbi->fb.node, fbi->fb.fix.id, fbi->fb.fix.smem_start,
-	       fbi->fb.fix.smem_start + fbi->fb.fix.smem_len - 1);
+	fb_info(&fbi->fb, "%s frame buffer at 0x%lx-0x%lx\n",
+		fbi->fb.fix.id, fbi->fb.fix.smem_start,
+		fbi->fb.fix.smem_start + fbi->fb.fix.smem_len - 1);
 
 	return 0;
 }
-- 
cgit 


From 08681618662f18631467a9746dea821db6f22a66 Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Sat, 21 Sep 2013 06:24:09 +0000
Subject: ixgbevf: add ixgbevf_rx_skb

This patch adds ixgbevf_rx_skb in line with how ixgbe handles the variations on
how packets can be received. It will be extended in a following patch for
CONFIG_NET_RX_BUSY_POLL support.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 87279c8ab2b9..a2cc6bb7318c 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -299,6 +299,20 @@ static void ixgbevf_receive_skb(struct ixgbevf_q_vector *q_vector,
 		netif_rx(skb);
 }
 
+/**
+ * ixgbevf_rx_skb - Helper function to determine proper Rx method
+ * @q_vector: structure containing interrupt and ring information
+ * @skb: packet to send up
+ * @status: hardware indication of status of receive
+ * @rx_desc: rx descriptor
+ **/
+static void ixgbevf_rx_skb(struct ixgbevf_q_vector *q_vector,
+			   struct sk_buff *skb, u8 status,
+			   union ixgbe_adv_rx_desc *rx_desc)
+{
+	ixgbevf_receive_skb(q_vector, skb, status, rx_desc);
+}
+
 /**
  * ixgbevf_rx_checksum - indicate in skb if hw indicated a good cksum
  * @ring: pointer to Rx descriptor ring structure
@@ -494,7 +508,7 @@ static bool ixgbevf_clean_rx_irq(struct ixgbevf_q_vector *q_vector,
 			goto next_desc;
 		}
 
-		ixgbevf_receive_skb(q_vector, skb, staterr, rx_desc);
+		ixgbevf_rx_skb(q_vector, skb, staterr, rx_desc);
 
 next_desc:
 		rx_desc->wb.upper.status_error = 0;
-- 
cgit 


From 9f694bc7936a7e4e9c9efac2900cddaf71303c0a Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 29 Oct 2013 11:56:21 +0100
Subject: ALSA: memalloc: Make snd_{malloc|free}_dev_iram() static

These are used only locally.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/core/memalloc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c
index 809fd79ecad6..278248b8f22a 100644
--- a/sound/core/memalloc.c
+++ b/sound/core/memalloc.c
@@ -167,7 +167,7 @@ static void snd_free_dev_pages(struct device *dev, size_t size, void *ptr,
  *
  * This function requires iram phandle provided via of_node
  */
-void snd_malloc_dev_iram(struct snd_dma_buffer *dmab, size_t size)
+static void snd_malloc_dev_iram(struct snd_dma_buffer *dmab, size_t size)
 {
 	struct device *dev = dmab->dev.dev;
 	struct gen_pool *pool = NULL;
@@ -192,7 +192,7 @@ void snd_malloc_dev_iram(struct snd_dma_buffer *dmab, size_t size)
  * snd_free_dev_iram - free allocated specific memory from on-chip internal ram
  * @dmab: buffer allocation record to store the allocated data
  */
-void snd_free_dev_iram(struct snd_dma_buffer *dmab)
+static void snd_free_dev_iram(struct snd_dma_buffer *dmab)
 {
 	struct gen_pool *pool = dmab->private_data;
 
-- 
cgit 


From 830fd4d6de1785942e34babe0a8984f72b534b25 Mon Sep 17 00:00:00 2001
From: Sricharan R <r.sricharan@ti.com>
Date: Tue, 29 Oct 2013 07:29:56 +0100
Subject: ARM: 7870/1: head: Fix the missing underscore in __ARMEB__ macro and
 .align keyword

Commit 'f52bb722547f43caeaecbcc62db9f3c3b80ead9b'
Author: Sricharan R <r.sricharan@ti.com>
    ARM: mm: Correct virt_to_phys patching for 64 bit physical addresses

introduced a __ARMEB__ macro usage in a new place, but missed the second
underscore. So correcting it here.

Also a explicit .align keyword is needed for the label with .long
data-type to be aligned on the 4 byte boundary. Otherwise this can
cause problem for thumb2 build. So adding it here.

Signed-off-by: Sricharan R <r.sricharan@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/head.S | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 54547947a4e9..32402ba6710a 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -536,7 +536,7 @@ ENTRY(fixup_smp)
 	ldmfd	sp!, {r4 - r6, pc}
 ENDPROC(fixup_smp)
 
-#ifdef __ARMEB_
+#ifdef __ARMEB__
 #define LOW_OFFSET	0x4
 #define HIGH_OFFSET	0x0
 #else
@@ -632,6 +632,7 @@ __fixup_a_pv_table:
 #endif
 ENDPROC(__fixup_a_pv_table)
 
+	.align
 3:	.long __pv_offset
 
 ENTRY(fixup_pv_table)
-- 
cgit 


From a40a3937222c728be925f2d78650cfe9b20be3f5 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 29 Oct 2013 11:59:31 +0100
Subject: ALSA: memalloc: NULL-initialize in snd_malloc_dev_iram()

dmab->area and addr fields should be cleared at the head of
snd_malloc_dev_iram() as especially dmab->area is used to indicate the
allocation failure / fallback.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/core/memalloc.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c
index 278248b8f22a..9d93f02c6285 100644
--- a/sound/core/memalloc.c
+++ b/sound/core/memalloc.c
@@ -172,6 +172,9 @@ static void snd_malloc_dev_iram(struct snd_dma_buffer *dmab, size_t size)
 	struct device *dev = dmab->dev.dev;
 	struct gen_pool *pool = NULL;
 
+	dmab->area = NULL;
+	dmab->addr = 0;
+
 	if (dev->of_node)
 		pool = of_get_named_gen_pool(dev->of_node, "iram", 0);
 
-- 
cgit 


From 08e50a20ed05fba11c7dbc9e325369bef6a1c194 Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Sat, 21 Sep 2013 06:24:14 +0000
Subject: ixgbevf: have clean_rx_irq return total_rx_packets cleaned

Rather than return true/false indicating whether there was budget left, return
the total packets cleaned. This currently has no use, but will be used in a
following patch which enables CONFIG_NET_RX_BUSY_POLL support in order to track
how many packets were cleaned during the busy poll as part of the extended
statistics.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index a2cc6bb7318c..06e29bd73777 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -410,9 +410,9 @@ static inline void ixgbevf_irq_enable_queues(struct ixgbevf_adapter *adapter,
 	IXGBE_WRITE_REG(hw, IXGBE_VTEIMS, qmask);
 }
 
-static bool ixgbevf_clean_rx_irq(struct ixgbevf_q_vector *q_vector,
-				 struct ixgbevf_ring *rx_ring,
-				 int budget)
+static int ixgbevf_clean_rx_irq(struct ixgbevf_q_vector *q_vector,
+				struct ixgbevf_ring *rx_ring,
+				int budget)
 {
 	struct ixgbevf_adapter *adapter = q_vector->adapter;
 	struct pci_dev *pdev = adapter->pdev;
@@ -540,7 +540,7 @@ next_desc:
 	q_vector->rx.total_packets += total_rx_packets;
 	q_vector->rx.total_bytes += total_rx_bytes;
 
-	return !!budget;
+	return total_rx_packets;
 }
 
 /**
@@ -572,8 +572,9 @@ static int ixgbevf_poll(struct napi_struct *napi, int budget)
 
 	adapter->flags |= IXGBE_FLAG_IN_NETPOLL;
 	ixgbevf_for_each_ring(ring, q_vector->rx)
-		clean_complete &= ixgbevf_clean_rx_irq(q_vector, ring,
-						       per_ring_budget);
+		clean_complete &= (ixgbevf_clean_rx_irq(q_vector, ring,
+							per_ring_budget)
+				   < per_ring_budget);
 	adapter->flags &= ~IXGBE_FLAG_IN_NETPOLL;
 
 	/* If all work not completed, return budget and keep polling */
-- 
cgit 


From 9a48aa4cafa994161d21e14b454f7191cf180ec3 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 25 Oct 2013 16:23:30 +0100
Subject: ARM: 7865/1: sa1100: fix simpad compilation warning

When removing the complex GPIO interface from the SA1100 machines,
we also removed the implicit #includes for a few header files
that was included by <linux/gpio.h> thru <mach/gpio.h>, causing
a compile warning on the simpad boardfile, as <asm/irq.h> was no
longer #included, as follows:

./../arch/arm/include/asm/irq.h:9:0: warning: "NR_IRQS" redefined
[enabled by default]
 #define NR_IRQS NR_IRQS_LEGACY
 ^
In file included from ../../arch/arm/mach-sa1100/simpad.c:29:0:
../../arch/arm/mach-sa1100/include/mach/irqs.h:87:0: note: this is the
location of the previous definition
 #define NR_IRQS (IRQ_BOARD_START + NR_IRQS_LOCOMO)

This resolves the problem by explicitly including <asm/irq.h>
into the simpad boardfile.

Reported-by: Olof Johansson <olof@lixom.net>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Cc: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Cc: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-sa1100/simpad.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-sa1100/simpad.c b/arch/arm/mach-sa1100/simpad.c
index bcbc94540e45..41e476e571d7 100644
--- a/arch/arm/mach-sa1100/simpad.c
+++ b/arch/arm/mach-sa1100/simpad.c
@@ -19,6 +19,7 @@
 
 #include <mach/hardware.h>
 #include <asm/setup.h>
+#include <asm/irq.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
-- 
cgit 


From 40ca061b1bb8827609d39679ddde6705551cb031 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Wed, 25 Sep 2013 13:33:55 +0100
Subject: ARM: 7841/1: sa1100: remove complex GPIO interface

The SA1100 was implementing its own variants of gpio_get_value()
and gpio_set_value() and only selectively falling back to
gpiolib for extended (EGPIO) handling. However the driver in
gpio/gpio-sa1100.c already handles the same functionality for
these lines, yet remain unused.

The only upside would be things like a timing-critical hotpath
on bit-banged GPIO, but that kind of things does not seem to
happen on these GPIOs, so it is not worth having the extra
complexity.

Tested with some buttons on the Compaq iPAQ H3630.

Cc: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig                          |  1 -
 arch/arm/mach-sa1100/include/mach/gpio.h  | 55 -------------------------------
 arch/arm/mach-sa1100/include/mach/h3xxx.h |  2 ++
 drivers/gpio/gpio-sa1100.c                |  2 +-
 4 files changed, 3 insertions(+), 57 deletions(-)
 delete mode 100644 arch/arm/mach-sa1100/include/mach/gpio.h

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3f7714d8d2d2..74bf29f4ccc5 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -692,7 +692,6 @@ config ARCH_SA1100
 	select GENERIC_CLOCKEVENTS
 	select HAVE_IDE
 	select ISA
-	select NEED_MACH_GPIO_H
 	select NEED_MACH_MEMORY_H
 	select SPARSE_IRQ
 	help
diff --git a/arch/arm/mach-sa1100/include/mach/gpio.h b/arch/arm/mach-sa1100/include/mach/gpio.h
deleted file mode 100644
index 6a9eecf3137e..000000000000
--- a/arch/arm/mach-sa1100/include/mach/gpio.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * arch/arm/mach-sa1100/include/mach/gpio.h
- *
- * SA1100 GPIO wrappers for arch-neutral GPIO calls
- *
- * Written by Philipp Zabel <philipp.zabel@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#ifndef __ASM_ARCH_SA1100_GPIO_H
-#define __ASM_ARCH_SA1100_GPIO_H
-
-#include <linux/io.h>
-#include <mach/hardware.h>
-#include <asm/irq.h>
-#include <asm-generic/gpio.h>
-
-#define __ARM_GPIOLIB_COMPLEX
-
-static inline int gpio_get_value(unsigned gpio)
-{
-	if (__builtin_constant_p(gpio) && (gpio <= GPIO_MAX))
-		return GPLR & GPIO_GPIO(gpio);
-	else
-		return __gpio_get_value(gpio);
-}
-
-static inline void gpio_set_value(unsigned gpio, int value)
-{
-	if (__builtin_constant_p(gpio) && (gpio <= GPIO_MAX))
-		if (value)
-			GPSR = GPIO_GPIO(gpio);
-		else
-			GPCR = GPIO_GPIO(gpio);
-	else
-		__gpio_set_value(gpio, value);
-}
-
-#define gpio_cansleep	__gpio_cansleep
-
-#endif
diff --git a/arch/arm/mach-sa1100/include/mach/h3xxx.h b/arch/arm/mach-sa1100/include/mach/h3xxx.h
index 7d9df16f04a2..c810620db53d 100644
--- a/arch/arm/mach-sa1100/include/mach/h3xxx.h
+++ b/arch/arm/mach-sa1100/include/mach/h3xxx.h
@@ -13,6 +13,8 @@
 #ifndef _INCLUDE_H3XXX_H_
 #define _INCLUDE_H3XXX_H_
 
+#include "hardware.h" /* Gives GPIO_MAX */
+
 /* Physical memory regions corresponding to chip selects */
 #define H3600_EGPIO_PHYS	(SA1100_CS5_PHYS + 0x01000000)
 #define H3600_BANK_2_PHYS	SA1100_CS2_PHYS
diff --git a/drivers/gpio/gpio-sa1100.c b/drivers/gpio/gpio-sa1100.c
index 8ea3b33d4b40..a90be34e4d5c 100644
--- a/drivers/gpio/gpio-sa1100.c
+++ b/drivers/gpio/gpio-sa1100.c
@@ -10,7 +10,7 @@
 #include <linux/gpio.h>
 #include <linux/init.h>
 #include <linux/module.h>
-
+#include <linux/io.h>
 #include <mach/hardware.h>
 #include <mach/irqs.h>
 
-- 
cgit 


From e812a3c15f0299ba70f0f7b5710db2a1a1c6643b Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 4 Oct 2013 19:02:05 +0100
Subject: ARM: 7849/2: h3600: update defconfig

This updates the h3600 defconfig against the latest kernel with
some small options coming and going due to Kconfig structure,
then modernize it to:

- Configure for low latency preemptive kernel
- Configure for tickless idle
- Enable HRtimers

Tested on the iPAQ h3630.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/configs/h3600_defconfig | 22 ++++++----------------
 1 file changed, 6 insertions(+), 16 deletions(-)

diff --git a/arch/arm/configs/h3600_defconfig b/arch/arm/configs/h3600_defconfig
index 317960f12488..0142ec37e0be 100644
--- a/arch/arm/configs/h3600_defconfig
+++ b/arch/arm/configs/h3600_defconfig
@@ -1,5 +1,6 @@
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_HIGH_RES_TIMERS=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_MODULES=y
@@ -11,11 +12,11 @@ CONFIG_ARCH_SA1100=y
 CONFIG_SA1100_H3600=y
 CONFIG_PCCARD=y
 CONFIG_PCMCIA_SA1100=y
+CONFIG_PREEMPT=y
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
 # CONFIG_CPU_FREQ_STAT is not set
 CONFIG_FPE_NWFPE=y
-CONFIG_PM=y
 CONFIG_NET=y
 CONFIG_UNIX=y
 CONFIG_INET=y
@@ -24,13 +25,10 @@ CONFIG_IRDA=m
 CONFIG_IRLAN=m
 CONFIG_IRNET=m
 CONFIG_IRCOMM=m
-CONFIG_SA1100_FIR=m
 # CONFIG_WIRELESS is not set
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
 CONFIG_MTD_REDBOOT_PARTS=y
-CONFIG_MTD_CHAR=y
 CONFIG_MTD_BLOCK=y
 CONFIG_MTD_CFI=y
 CONFIG_MTD_CFI_ADV_OPTIONS=y
@@ -41,19 +39,15 @@ CONFIG_MTD_SA1100=y
 CONFIG_BLK_DEV_LOOP=m
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=8192
-# CONFIG_MISC_DEVICES is not set
 CONFIG_IDE=y
 CONFIG_BLK_DEV_IDECS=y
 CONFIG_NETDEVICES=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
-# CONFIG_WLAN is not set
-CONFIG_NET_PCMCIA=y
 CONFIG_PCMCIA_PCNET=y
 CONFIG_PPP=m
-CONFIG_PPP_ASYNC=m
-CONFIG_PPP_DEFLATE=m
 CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
+CONFIG_PPP_ASYNC=m
+# CONFIG_WLAN is not set
 # CONFIG_KEYBOARD_ATKBD is not set
 CONFIG_KEYBOARD_GPIO=y
 # CONFIG_INPUT_MOUSE is not set
@@ -64,8 +58,6 @@ CONFIG_SERIAL_SA1100_CONSOLE=y
 # CONFIG_HWMON is not set
 CONFIG_FB=y
 CONFIG_FB_SA1100=y
-# CONFIG_VGA_CONSOLE is not set
-# CONFIG_HID_SUPPORT is not set
 # CONFIG_USB_SUPPORT is not set
 CONFIG_EXT2_FS=y
 CONFIG_MSDOS_FS=m
@@ -74,6 +66,4 @@ CONFIG_JFFS2_FS=y
 CONFIG_CRAMFS=m
 CONFIG_NFS_FS=y
 CONFIG_NFSD=m
-CONFIG_SMB_FS=m
 CONFIG_NLS=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-- 
cgit 


From f3964fe1c9d9a887d65faf594669852e4dec46e0 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Wed, 16 Oct 2013 00:09:02 +0100
Subject: ARM: sa11x0/assabet: ensure CS2 is configured appropriately

The CS2 region contains the Assabet board configuration and status
registers, which are 32-bit.  Unfortunately, some boot loaders do not
configure this region correctly, leaving it setup as a 16-bit region.
Fix this.

Cc: <stable@vger.kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-sa1100/assabet.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/mach-sa1100/assabet.c b/arch/arm/mach-sa1100/assabet.c
index e838ba27e443..c9808c684152 100644
--- a/arch/arm/mach-sa1100/assabet.c
+++ b/arch/arm/mach-sa1100/assabet.c
@@ -512,6 +512,9 @@ static void __init assabet_map_io(void)
 	 * Its called GPCLKR0 in my SA1110 manual.
 	 */
 	Ser1SDCR0 |= SDCR0_SUS;
+	MSC1 = (MSC1 & ~0xffff) |
+		MSC_NonBrst | MSC_32BitStMem |
+		MSC_RdAcc(2) | MSC_WrAcc(2) | MSC_Rec(0);
 
 	if (!machine_has_neponset())
 		sa1100_register_uart_fns(&assabet_port_fns);
-- 
cgit 


From 1ee14e6c8cddeeb8a490d7b54cd9016e4bb900b4 Mon Sep 17 00:00:00 2001
From: Ben Segall <bsegall@google.com>
Date: Wed, 16 Oct 2013 11:16:12 -0700
Subject: sched: Fix race on toggling cfs_bandwidth_used

When we transition cfs_bandwidth_used to false, any currently
throttled groups will incorrectly return false from cfs_rq_throttled.
While tg_set_cfs_bandwidth will unthrottle them eventually, currently
running code (including at least dequeue_task_fair and
distribute_cfs_runtime) will cause errors.

Fix this by turning off cfs_bandwidth_used only after unthrottling all
cfs_rqs.

Tested: toggle bandwidth back and forth on a loaded cgroup. Caused
crashes in minutes without the patch, hasn't crashed with it.

Signed-off-by: Ben Segall <bsegall@google.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: pjt@google.com
Link: http://lkml.kernel.org/r/20131016181611.22647.80365.stgit@sword-of-the-dawn.mtv.corp.google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/core.c  |  9 ++++++++-
 kernel/sched/fair.c  | 16 +++++++++-------
 kernel/sched/sched.h |  3 ++-
 3 files changed, 19 insertions(+), 9 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 7c61f313521d..450a34b2a637 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -7436,7 +7436,12 @@ static int tg_set_cfs_bandwidth(struct task_group *tg, u64 period, u64 quota)
 
 	runtime_enabled = quota != RUNTIME_INF;
 	runtime_was_enabled = cfs_b->quota != RUNTIME_INF;
-	account_cfs_bandwidth_used(runtime_enabled, runtime_was_enabled);
+	/*
+	 * If we need to toggle cfs_bandwidth_used, off->on must occur
+	 * before making related changes, and on->off must occur afterwards
+	 */
+	if (runtime_enabled && !runtime_was_enabled)
+		cfs_bandwidth_usage_inc();
 	raw_spin_lock_irq(&cfs_b->lock);
 	cfs_b->period = ns_to_ktime(period);
 	cfs_b->quota = quota;
@@ -7462,6 +7467,8 @@ static int tg_set_cfs_bandwidth(struct task_group *tg, u64 period, u64 quota)
 			unthrottle_cfs_rq(cfs_rq);
 		raw_spin_unlock_irq(&rq->lock);
 	}
+	if (runtime_was_enabled && !runtime_enabled)
+		cfs_bandwidth_usage_dec();
 out_unlock:
 	mutex_unlock(&cfs_constraints_mutex);
 
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 813dd61a9b43..ebd187f50339 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2845,13 +2845,14 @@ static inline bool cfs_bandwidth_used(void)
 	return static_key_false(&__cfs_bandwidth_used);
 }
 
-void account_cfs_bandwidth_used(int enabled, int was_enabled)
+void cfs_bandwidth_usage_inc(void)
 {
-	/* only need to count groups transitioning between enabled/!enabled */
-	if (enabled && !was_enabled)
-		static_key_slow_inc(&__cfs_bandwidth_used);
-	else if (!enabled && was_enabled)
-		static_key_slow_dec(&__cfs_bandwidth_used);
+	static_key_slow_inc(&__cfs_bandwidth_used);
+}
+
+void cfs_bandwidth_usage_dec(void)
+{
+	static_key_slow_dec(&__cfs_bandwidth_used);
 }
 #else /* HAVE_JUMP_LABEL */
 static bool cfs_bandwidth_used(void)
@@ -2859,7 +2860,8 @@ static bool cfs_bandwidth_used(void)
 	return true;
 }
 
-void account_cfs_bandwidth_used(int enabled, int was_enabled) {}
+void cfs_bandwidth_usage_inc(void) {}
+void cfs_bandwidth_usage_dec(void) {}
 #endif /* HAVE_JUMP_LABEL */
 
 /*
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index ffc708717b70..4e650acffed7 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1352,7 +1352,8 @@ extern void print_rt_stats(struct seq_file *m, int cpu);
 extern void init_cfs_rq(struct cfs_rq *cfs_rq);
 extern void init_rt_rq(struct rt_rq *rt_rq, struct rq *rq);
 
-extern void account_cfs_bandwidth_used(int enabled, int was_enabled);
+extern void cfs_bandwidth_usage_inc(void);
+extern void cfs_bandwidth_usage_dec(void);
 
 #ifdef CONFIG_NO_HZ_COMMON
 enum rq_nohz_flag_bits {
-- 
cgit 


From db06e78cc13d70f10877e0557becc88ab3ad2be8 Mon Sep 17 00:00:00 2001
From: Ben Segall <bsegall@google.com>
Date: Wed, 16 Oct 2013 11:16:17 -0700
Subject: sched: Fix cfs_bandwidth misuse of hrtimer_expires_remaining

hrtimer_expires_remaining does not take internal hrtimer locks and thus
must be guarded against concurrent __hrtimer_start_range_ns (but
returning HRTIMER_RESTART is safe). Use cfs_b->lock to make it safe.

Signed-off-by: Ben Segall <bsegall@google.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: pjt@google.com
Link: http://lkml.kernel.org/r/20131016181617.22647.73829.stgit@sword-of-the-dawn.mtv.corp.google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index ebd187f50339..897d97762d8a 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3285,7 +3285,13 @@ static const u64 min_bandwidth_expiration = 2 * NSEC_PER_MSEC;
 /* how long we wait to gather additional slack before distributing */
 static const u64 cfs_bandwidth_slack_period = 5 * NSEC_PER_MSEC;
 
-/* are we near the end of the current quota period? */
+/*
+ * Are we near the end of the current quota period?
+ *
+ * Requires cfs_b->lock for hrtimer_expires_remaining to be safe against the
+ * hrtimer base being cleared by __hrtimer_start_range_ns. In the case of
+ * migrate_hrtimers, base is never cleared, so we are fine.
+ */
 static int runtime_refresh_within(struct cfs_bandwidth *cfs_b, u64 min_expire)
 {
 	struct hrtimer *refresh_timer = &cfs_b->period_timer;
@@ -3361,10 +3367,12 @@ static void do_sched_cfs_slack_timer(struct cfs_bandwidth *cfs_b)
 	u64 expires;
 
 	/* confirm we're still not at a refresh boundary */
-	if (runtime_refresh_within(cfs_b, min_bandwidth_expiration))
+	raw_spin_lock(&cfs_b->lock);
+	if (runtime_refresh_within(cfs_b, min_bandwidth_expiration)) {
+		raw_spin_unlock(&cfs_b->lock);
 		return;
+	}
 
-	raw_spin_lock(&cfs_b->lock);
 	if (cfs_b->quota != RUNTIME_INF && cfs_b->runtime > slice) {
 		runtime = cfs_b->runtime;
 		cfs_b->runtime = 0;
-- 
cgit 


From 927b54fccbf04207ec92f669dce6806848cbec7d Mon Sep 17 00:00:00 2001
From: Ben Segall <bsegall@google.com>
Date: Wed, 16 Oct 2013 11:16:22 -0700
Subject: sched: Fix hrtimer_cancel()/rq->lock deadlock

__start_cfs_bandwidth calls hrtimer_cancel while holding rq->lock,
waiting for the hrtimer to finish. However, if sched_cfs_period_timer
runs for another loop iteration, the hrtimer can attempt to take
rq->lock, resulting in deadlock.

Fix this by ensuring that cfs_b->timer_active is cleared only if the
_latest_ call to do_sched_cfs_period_timer is returning as idle. Then
__start_cfs_bandwidth can just call hrtimer_try_to_cancel and wait for
that to succeed or timer_active == 1.

Signed-off-by: Ben Segall <bsegall@google.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: pjt@google.com
Link: http://lkml.kernel.org/r/20131016181622.22647.16643.stgit@sword-of-the-dawn.mtv.corp.google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 897d97762d8a..f6308cb44d09 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3225,6 +3225,13 @@ static int do_sched_cfs_period_timer(struct cfs_bandwidth *cfs_b, int overrun)
 	if (idle)
 		goto out_unlock;
 
+	/*
+	 * if we have relooped after returning idle once, we need to update our
+	 * status as actually running, so that other cpus doing
+	 * __start_cfs_bandwidth will stop trying to cancel us.
+	 */
+	cfs_b->timer_active = 1;
+
 	__refill_cfs_bandwidth_runtime(cfs_b);
 
 	if (!throttled) {
@@ -3493,11 +3500,11 @@ void __start_cfs_bandwidth(struct cfs_bandwidth *cfs_b)
 	 * (timer_active==0 becomes visible before the hrtimer call-back
 	 * terminates).  In either case we ensure that it's re-programmed
 	 */
-	while (unlikely(hrtimer_active(&cfs_b->period_timer))) {
+	while (unlikely(hrtimer_active(&cfs_b->period_timer)) &&
+	       hrtimer_try_to_cancel(&cfs_b->period_timer) < 0) {
+		/* bounce the lock to allow do_sched_cfs_period_timer to run */
 		raw_spin_unlock(&cfs_b->lock);
-		/* ensure cfs_b->lock is available while we wait */
-		hrtimer_cancel(&cfs_b->period_timer);
-
+		cpu_relax();
 		raw_spin_lock(&cfs_b->lock);
 		/* if someone else restarted the timer then we're done */
 		if (cfs_b->timer_active)
-- 
cgit 


From 0ac9b1c21874d2490331233b3242085f8151e166 Mon Sep 17 00:00:00 2001
From: Paul Turner <pjt@google.com>
Date: Wed, 16 Oct 2013 11:16:27 -0700
Subject: sched: Guarantee new group-entities always have weight

Currently, group entity load-weights are initialized to zero. This
admits some races with respect to the first time they are re-weighted in
earlty use. ( Let g[x] denote the se for "g" on cpu "x". )

Suppose that we have root->a and that a enters a throttled state,
immediately followed by a[0]->t1 (the only task running on cpu[0])
blocking:

  put_prev_task(group_cfs_rq(a[0]), t1)
  put_prev_entity(..., t1)
  check_cfs_rq_runtime(group_cfs_rq(a[0]))
  throttle_cfs_rq(group_cfs_rq(a[0]))

Then, before unthrottling occurs, let a[0]->b[0]->t2 wake for the first
time:

  enqueue_task_fair(rq[0], t2)
  enqueue_entity(group_cfs_rq(b[0]), t2)
  enqueue_entity_load_avg(group_cfs_rq(b[0]), t2)
  account_entity_enqueue(group_cfs_ra(b[0]), t2)
  update_cfs_shares(group_cfs_rq(b[0]))
  < skipped because b is part of a throttled hierarchy >
  enqueue_entity(group_cfs_rq(a[0]), b[0])
  ...

We now have b[0] enqueued, yet group_cfs_rq(a[0])->load.weight == 0
which violates invariants in several code-paths. Eliminate the
possibility of this by initializing group entity weight.

Signed-off-by: Paul Turner <pjt@google.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131016181627.22647.47543.stgit@sword-of-the-dawn.mtv.corp.google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index f6308cb44d09..0923ab2b7eb9 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -7198,7 +7198,8 @@ void init_tg_cfs_entry(struct task_group *tg, struct cfs_rq *cfs_rq,
 		se->cfs_rq = parent->my_q;
 
 	se->my_q = cfs_rq;
-	update_load_set(&se->load, 0);
+	/* guarantee group entities always have weight */
+	update_load_set(&se->load, NICE_0_LOAD);
 	se->parent = parent;
 }
 
-- 
cgit 


From f9f9ffc237dd924f048204e8799da74f9ecf40cf Mon Sep 17 00:00:00 2001
From: Ben Segall <bsegall@google.com>
Date: Wed, 16 Oct 2013 11:16:32 -0700
Subject: sched: Avoid throttle_cfs_rq() racing with period_timer stopping

throttle_cfs_rq() doesn't check to make sure that period_timer is running,
and while update_curr/assign_cfs_runtime does, a concurrently running
period_timer on another cpu could cancel itself between this cpu's
update_curr and throttle_cfs_rq(). If there are no other cfs_rqs running
in the tg to restart the timer, this causes the cfs_rq to be stranded
forever.

Fix this by calling __start_cfs_bandwidth() in throttle if the timer is
inactive.

(Also add some sched_debug lines for cfs_bandwidth.)

Tested: make a run/sleep task in a cgroup, loop switching the cgroup
between 1ms/100ms quota and unlimited, checking for timer_active=0 and
throttled=1 as a failure. With the throttle_cfs_rq() change commented out
this fails, with the full patch it passes.

Signed-off-by: Ben Segall <bsegall@google.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: pjt@google.com
Link: http://lkml.kernel.org/r/20131016181632.22647.84174.stgit@sword-of-the-dawn.mtv.corp.google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/debug.c | 8 ++++++++
 kernel/sched/fair.c  | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/kernel/sched/debug.c b/kernel/sched/debug.c
index e6ba5e31c7ca..5c34d1817e8f 100644
--- a/kernel/sched/debug.c
+++ b/kernel/sched/debug.c
@@ -229,6 +229,14 @@ void print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq)
 			atomic_read(&cfs_rq->tg->runnable_avg));
 #endif
 #endif
+#ifdef CONFIG_CFS_BANDWIDTH
+	SEQ_printf(m, "  .%-30s: %d\n", "tg->cfs_bandwidth.timer_active",
+			cfs_rq->tg->cfs_bandwidth.timer_active);
+	SEQ_printf(m, "  .%-30s: %d\n", "throttled",
+			cfs_rq->throttled);
+	SEQ_printf(m, "  .%-30s: %d\n", "throttle_count",
+			cfs_rq->throttle_count);
+#endif
 
 #ifdef CONFIG_FAIR_GROUP_SCHED
 	print_cfs_group_stats(m, cpu, cfs_rq->tg);
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 0923ab2b7eb9..41c02b6b090e 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3112,6 +3112,8 @@ static void throttle_cfs_rq(struct cfs_rq *cfs_rq)
 	cfs_rq->throttled_clock = rq_clock(rq);
 	raw_spin_lock(&cfs_b->lock);
 	list_add_tail_rcu(&cfs_rq->throttled_list, &cfs_b->throttled_cfs_rq);
+	if (!cfs_b->timer_active)
+		__start_cfs_bandwidth(cfs_b);
 	raw_spin_unlock(&cfs_b->lock);
 }
 
-- 
cgit 


From d9494cb4299da66541a3f3ab82c552889bee0606 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 17 Oct 2013 15:36:19 +0200
Subject: perf: Remove useless atomic_t

There's nothing atomic about atomic_set vs atomic_read; so remove the
atomic_t usage.

Also, make running_sample_length static as it really is (and should
be) local to this translation unit.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: eranian@google.com
Cc: Don Zickus <dzickus@redhat.com>
Cc: jmario@redhat.com
Cc: acme@infradead.org
Cc: dave.hansen@linux.intel.com
Link: http://lkml.kernel.org/n/tip-vw9lg588x1ic248whybjon0c@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/events/core.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 5bd7fe43a7a2..028dad97760d 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -175,8 +175,8 @@ int sysctl_perf_event_sample_rate __read_mostly	= DEFAULT_MAX_SAMPLE_RATE;
 static int max_samples_per_tick __read_mostly	= DIV_ROUND_UP(DEFAULT_MAX_SAMPLE_RATE, HZ);
 static int perf_sample_period_ns __read_mostly	= DEFAULT_SAMPLE_PERIOD_NS;
 
-static atomic_t perf_sample_allowed_ns __read_mostly =
-	ATOMIC_INIT( DEFAULT_SAMPLE_PERIOD_NS * DEFAULT_CPU_TIME_MAX_PERCENT / 100);
+static int perf_sample_allowed_ns __read_mostly =
+	DEFAULT_SAMPLE_PERIOD_NS * DEFAULT_CPU_TIME_MAX_PERCENT / 100;
 
 void update_perf_cpu_limits(void)
 {
@@ -184,7 +184,7 @@ void update_perf_cpu_limits(void)
 
 	tmp *= sysctl_perf_cpu_time_max_percent;
 	do_div(tmp, 100);
-	atomic_set(&perf_sample_allowed_ns, tmp);
+	ACCESS_ONCE(perf_sample_allowed_ns) = tmp;
 }
 
 static int perf_rotate_context(struct perf_cpu_context *cpuctx);
@@ -228,14 +228,15 @@ int perf_cpu_time_max_percent_handler(struct ctl_table *table, int write,
  * we detect that events are taking too long.
  */
 #define NR_ACCUMULATED_SAMPLES 128
-DEFINE_PER_CPU(u64, running_sample_length);
+static DEFINE_PER_CPU(u64, running_sample_length);
 
 void perf_sample_event_took(u64 sample_len_ns)
 {
 	u64 avg_local_sample_len;
 	u64 local_samples_len;
+	u64 allowed_ns = ACCESS_ONCE(perf_sample_allowed_ns);
 
-	if (atomic_read(&perf_sample_allowed_ns) == 0)
+	if (allowed_ns == 0)
 		return;
 
 	/* decay the counter by 1 average sample */
@@ -251,7 +252,7 @@ void perf_sample_event_took(u64 sample_len_ns)
 	 */
 	avg_local_sample_len = local_samples_len/NR_ACCUMULATED_SAMPLES;
 
-	if (avg_local_sample_len <= atomic_read(&perf_sample_allowed_ns))
+	if (avg_local_sample_len <= allowed_ns)
 		return;
 
 	if (max_samples_per_tick <= 1)
@@ -262,10 +263,9 @@ void perf_sample_event_took(u64 sample_len_ns)
 	perf_sample_period_ns = NSEC_PER_SEC / sysctl_perf_event_sample_rate;
 
 	printk_ratelimited(KERN_WARNING
-			"perf samples too long (%lld > %d), lowering "
+			"perf samples too long (%lld > %lld), lowering "
 			"kernel.perf_event_max_sample_rate to %d\n",
-			avg_local_sample_len,
-			atomic_read(&perf_sample_allowed_ns),
+			avg_local_sample_len, allowed_ns,
 			sysctl_perf_event_sample_rate);
 
 	update_perf_cpu_limits();
-- 
cgit 


From 32c5fb7e7d18b4fd37c5e29dea731151e9d66866 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Wed, 16 Oct 2013 22:09:45 +0200
Subject: perf: Kill the dead !vma->vm_mm code in perf_event_mmap_event()

1. perf_event_mmap(vma) is never called with a gate_vma-like arg,
   remove the "if (!vma->vm_mm)" code.

2. arch_vma_name() can use the chached value of mmap_event->vma.

3. Change the code to not call arch_vma_name() twice.

4. Purely cosmetic, but since we use "goto got_name" all the time
   remove "else" from "[stack]" branch just for symmetry.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131016200945.GB23214@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/events/core.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 028dad97760d..3ea560551a2a 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5136,21 +5136,19 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event)
 		min = MINOR(dev);
 
 	} else {
-		if (arch_vma_name(mmap_event->vma)) {
-			name = strncpy(tmp, arch_vma_name(mmap_event->vma),
-				       sizeof(tmp) - 1);
+		name = arch_vma_name(vma);
+		if (name) {
+			name = strncpy(tmp, name, sizeof(tmp) - 1);
 			tmp[sizeof(tmp) - 1] = '\0';
 			goto got_name;
 		}
 
-		if (!vma->vm_mm) {
-			name = strncpy(tmp, "[vdso]", sizeof(tmp));
-			goto got_name;
-		} else if (vma->vm_start <= vma->vm_mm->start_brk &&
+		if (vma->vm_start <= vma->vm_mm->start_brk &&
 				vma->vm_end >= vma->vm_mm->brk) {
 			name = strncpy(tmp, "[heap]", sizeof(tmp));
 			goto got_name;
-		} else if (vma->vm_start <= vma->vm_mm->start_stack &&
+		}
+		if (vma->vm_start <= vma->vm_mm->start_stack &&
 				vma->vm_end >= vma->vm_mm->start_stack) {
 			name = strncpy(tmp, "[stack]", sizeof(tmp));
 			goto got_name;
-- 
cgit 


From 3ea2f2b96f9e636f49eb10962e96db3e19cab157 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Wed, 16 Oct 2013 22:10:04 +0200
Subject: perf: Do not waste PAGE_SIZE bytes for ALIGN(8) in
 perf_event_mmap_event()

perf_event_mmap_event() does kzalloc(PATH_MAX + sizeof(u64)) to
ensure we can align the size later. However this means that we
actually allocate PAGE_SIZE * 2 buffer, seems too much.

Change this code to allocate PATH_MAX==PAGE_SIZE bytes, but tell
d_path() to not use the last sizeof(u64) bytes.

Note: it is not clear why do we need __GFP_ZERO, see the next patch.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131016201004.GC23214@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/events/core.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 3ea560551a2a..b409e757cadc 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5113,17 +5113,18 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event)
 	if (file) {
 		struct inode *inode;
 		dev_t dev;
-		/*
-		 * d_path works from the end of the rb backwards, so we
-		 * need to add enough zero bytes after the string to handle
-		 * the 64bit alignment we do later.
-		 */
-		buf = kzalloc(PATH_MAX + sizeof(u64), GFP_KERNEL);
+
+		buf = kzalloc(PATH_MAX, GFP_KERNEL);
 		if (!buf) {
 			name = strncpy(tmp, "//enomem", sizeof(tmp));
 			goto got_name;
 		}
-		name = d_path(&file->f_path, buf, PATH_MAX);
+		/*
+		 * d_path() works from the end of the rb backwards, so we
+		 * need to add enough zero bytes after the string to handle
+		 * the 64bit alignment we do later.
+		 */
+		name = d_path(&file->f_path, buf, PATH_MAX - sizeof(u64));
 		if (IS_ERR(name)) {
 			name = strncpy(tmp, "//toolong", sizeof(tmp));
 			goto got_name;
-- 
cgit 


From 2c42cfbfe10872929c2ba1f8130e31063ff59b94 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 17 Oct 2013 00:06:46 +0200
Subject: perf: Change zero-padding of strings in perf_event_mmap_event()

Oleg complained about the excessive 0-ing in perf_event_mmap_event(),
so try and be smarter about it while keeping it fairly fool proof and
avoid leaking random bits out to userspace.

Suggested-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-8jirlm99m6if2z13wd6rbyu6@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/events/core.c | 17 +++++++++++------
 1 file changed, 11 insertions(+), 6 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index b409e757cadc..85a8bbde6481 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5106,15 +5106,13 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event)
 	unsigned int size;
 	char tmp[16];
 	char *buf = NULL;
-	const char *name;
-
-	memset(tmp, 0, sizeof(tmp));
+	char *name;
 
 	if (file) {
 		struct inode *inode;
 		dev_t dev;
 
-		buf = kzalloc(PATH_MAX, GFP_KERNEL);
+		buf = kmalloc(PATH_MAX, GFP_KERNEL);
 		if (!buf) {
 			name = strncpy(tmp, "//enomem", sizeof(tmp));
 			goto got_name;
@@ -5137,7 +5135,7 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event)
 		min = MINOR(dev);
 
 	} else {
-		name = arch_vma_name(vma);
+		name = (char *)arch_vma_name(vma);
 		if (name) {
 			name = strncpy(tmp, name, sizeof(tmp) - 1);
 			tmp[sizeof(tmp) - 1] = '\0';
@@ -5160,7 +5158,14 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event)
 	}
 
 got_name:
-	size = ALIGN(strlen(name)+1, sizeof(u64));
+	/*
+	 * Since our buffer works in 8 byte units we need to align our string
+	 * size to a multiple of 8. However, we must guarantee the tail end is
+	 * zero'd out to avoid leaking random bits to userspace.
+	 */
+	size = strlen(name)+1;
+	while (!IS_ALIGNED(size, sizeof(u64)))
+		name[size++] = '\0';
 
 	mmap_event->file_name = name;
 	mmap_event->file_size = size;
-- 
cgit 


From e00b12e64be9a34ef071de7b6052ca9ea29dd460 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 24 Oct 2013 12:52:06 +0200
Subject: perf/x86: Further optimize copy_from_user_nmi()

Now that we can deal with nested NMI due to IRET re-enabling NMIs and
can deal with faults from NMI by making sure we preserve CR2 over NMIs
we can in fact simply access user-space memory from NMI context.

So rewrite copy_from_user_nmi() to use __copy_from_user_inatomic() and
rework the fault path to do the minimal required work before taking
the in_atomic() fault handler.

In particular avoid perf_sw_event() which would make perf recurse on
itself (it should be harmless as our recursion protections should be
able to deal with this -- but why tempt fate).

Also rename notify_page_fault() to kprobes_fault() as that is a much
better name; there is no notifier in it and its specific to kprobes.

Don measured that his worst case NMI path shrunk from ~300K cycles to
~150K cycles.

Cc: Stephane Eranian <eranian@google.com>
Cc: jmario@redhat.com
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: dave.hansen@linux.intel.com
Tested-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131024105206.GM2490@laptop.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/lib/usercopy.c | 43 +++++++++++++++----------------------------
 arch/x86/mm/fault.c     | 41 +++++++++++++++++++++--------------------
 2 files changed, 36 insertions(+), 48 deletions(-)

diff --git a/arch/x86/lib/usercopy.c b/arch/x86/lib/usercopy.c
index 4f74d94c8d97..5465b8613944 100644
--- a/arch/x86/lib/usercopy.c
+++ b/arch/x86/lib/usercopy.c
@@ -11,39 +11,26 @@
 #include <linux/sched.h>
 
 /*
- * best effort, GUP based copy_from_user() that is NMI-safe
+ * We rely on the nested NMI work to allow atomic faults from the NMI path; the
+ * nested NMI paths are careful to preserve CR2.
  */
 unsigned long
 copy_from_user_nmi(void *to, const void __user *from, unsigned long n)
 {
-	unsigned long offset, addr = (unsigned long)from;
-	unsigned long size, len = 0;
-	struct page *page;
-	void *map;
-	int ret;
+	unsigned long ret;
 
 	if (__range_not_ok(from, n, TASK_SIZE))
-		return len;
-
-	do {
-		ret = __get_user_pages_fast(addr, 1, 0, &page);
-		if (!ret)
-			break;
-
-		offset = addr & (PAGE_SIZE - 1);
-		size = min(PAGE_SIZE - offset, n - len);
-
-		map = kmap_atomic(page);
-		memcpy(to, map+offset, size);
-		kunmap_atomic(map);
-		put_page(page);
-
-		len  += size;
-		to   += size;
-		addr += size;
-
-	} while (len < n);
-
-	return len;
+		return 0;
+
+	/*
+	 * Even though this function is typically called from NMI/IRQ context
+	 * disable pagefaults so that its behaviour is consistent even when
+	 * called form other contexts.
+	 */
+	pagefault_disable();
+	ret = __copy_from_user_inatomic(to, from, n);
+	pagefault_enable();
+
+	return n - ret;
 }
 EXPORT_SYMBOL_GPL(copy_from_user_nmi);
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 3aaeffcfd67a..7a517bb41060 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -51,7 +51,7 @@ kmmio_fault(struct pt_regs *regs, unsigned long addr)
 	return 0;
 }
 
-static inline int __kprobes notify_page_fault(struct pt_regs *regs)
+static inline int __kprobes kprobes_fault(struct pt_regs *regs)
 {
 	int ret = 0;
 
@@ -1048,7 +1048,7 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code)
 			return;
 
 		/* kprobes don't want to hook the spurious faults: */
-		if (notify_page_fault(regs))
+		if (kprobes_fault(regs))
 			return;
 		/*
 		 * Don't take the mm semaphore here. If we fixup a prefetch
@@ -1060,23 +1060,8 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code)
 	}
 
 	/* kprobes don't want to hook the spurious faults: */
-	if (unlikely(notify_page_fault(regs)))
+	if (unlikely(kprobes_fault(regs)))
 		return;
-	/*
-	 * It's safe to allow irq's after cr2 has been saved and the
-	 * vmalloc fault has been handled.
-	 *
-	 * User-mode registers count as a user access even for any
-	 * potential system fault or CPU buglet:
-	 */
-	if (user_mode_vm(regs)) {
-		local_irq_enable();
-		error_code |= PF_USER;
-		flags |= FAULT_FLAG_USER;
-	} else {
-		if (regs->flags & X86_EFLAGS_IF)
-			local_irq_enable();
-	}
 
 	if (unlikely(error_code & PF_RSVD))
 		pgtable_bad(regs, error_code, address);
@@ -1088,8 +1073,6 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code)
 		}
 	}
 
-	perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address);
-
 	/*
 	 * If we're in an interrupt, have no user context or are running
 	 * in an atomic region then we must not take the fault:
@@ -1099,6 +1082,24 @@ __do_page_fault(struct pt_regs *regs, unsigned long error_code)
 		return;
 	}
 
+	/*
+	 * It's safe to allow irq's after cr2 has been saved and the
+	 * vmalloc fault has been handled.
+	 *
+	 * User-mode registers count as a user access even for any
+	 * potential system fault or CPU buglet:
+	 */
+	if (user_mode_vm(regs)) {
+		local_irq_enable();
+		error_code |= PF_USER;
+		flags |= FAULT_FLAG_USER;
+	} else {
+		if (regs->flags & X86_EFLAGS_IF)
+			local_irq_enable();
+	}
+
+	perf_sw_event(PERF_COUNT_SW_PAGE_FAULTS, 1, regs, address);
+
 	if (error_code & PF_WRITE)
 		flags |= FAULT_FLAG_WRITE;
 
-- 
cgit 


From 3159f372354e8e1f5dee714663d705dd2c7e0759 Mon Sep 17 00:00:00 2001
From: Sergey Dyasly <dserrg@gmail.com>
Date: Tue, 24 Sep 2013 16:38:00 +0100
Subject: ARM: 7840/1: LPAE: don't reject mapping /dev/mem above 4GB

With LPAE enabled, physical address space is larger than 4GB. Allow mapping any
part of it via /dev/mem by using PHYS_MASK to determine valid range.

PHYS_MASK covers 40 bits with LPAE enabled and 32 bits otherwise.

Reported-by: Vassili Karpov <av1474@comtv.ru>
Signed-off-by: Sergey Dyasly <dserrg@gmail.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mm/mmap.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index 0c6356255fe3..d27158c38eb0 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -202,13 +202,11 @@ int valid_phys_addr_range(phys_addr_t addr, size_t size)
 }
 
 /*
- * We don't use supersection mappings for mmap() on /dev/mem, which
- * means that we can't map the memory area above the 4G barrier into
- * userspace.
+ * Do not allow /dev/mem mappings beyond the supported physical range.
  */
 int valid_mmap_phys_addr_range(unsigned long pfn, size_t size)
 {
-	return !(pfn + (size >> PAGE_SHIFT) > 0x00100000);
+	return (pfn + (size >> PAGE_SHIFT)) <= (1 + (PHYS_MASK >> PAGE_SHIFT));
 }
 
 #ifdef CONFIG_STRICT_DEVMEM
-- 
cgit 


From 494e492dd88d36cd201eae99873492450d1e9b4f Mon Sep 17 00:00:00 2001
From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Tue, 8 Oct 2013 16:44:17 +0100
Subject: ARM: 7850/1: DEBUG_LL on efm32 SoCs
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This implements output of debug messages on efm32 SoCs.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig.debug         | 17 ++++++++++++++++
 arch/arm/include/debug/efm32.S | 45 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 62 insertions(+)
 create mode 100644 arch/arm/include/debug/efm32.S

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 9762c84b4198..2b3206824353 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -834,6 +834,20 @@ choice
 		  options; the platform specific options are deprecated
 		  and will be soon removed.
 
+	config DEBUG_LL_UART_EFM32
+		bool "Kernel low-level debugging via efm32 UART"
+		depends on ARCH_EFM32
+		help
+		  Say Y here if you want the debug print routines to direct
+		  their output to an UART or USART port on efm32 based
+		  machines. Use the following addresses for DEBUG_UART_PHYS:
+
+		    0x4000c000 | USART0
+		    0x4000c400 | USART1
+		    0x4000c800 | USART2
+		    0x4000e000 | UART0
+		    0x4000e400 | UART1
+
 	config DEBUG_LL_UART_PL01X
 		bool "Kernel low-level debugging via ARM Ltd PL01x Primecell UART"
 		help
@@ -885,6 +899,7 @@ config DEBUG_LL_INCLUDE
 	default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
 	default "debug/pl01x.S" if DEBUG_LL_UART_PL01X || DEBUG_UART_PL01X
 	default "debug/exynos.S" if DEBUG_EXYNOS_UART
+	default "debug/efm32.S" if DEBUG_LL_UART_EFM32
 	default "debug/icedcc.S" if DEBUG_ICEDCC
 	default "debug/imx.S" if DEBUG_IMX1_UART || \
 				 DEBUG_IMX25_UART || \
@@ -951,6 +966,7 @@ config DEBUG_UART_PHYS
 	default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
 	default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
 	default 0x20201000 if DEBUG_BCM2835
+	default 0x4000e400 if DEBUG_LL_UART_EFM32
 	default 0x40090000 if ARCH_LPC32XX
 	default 0x40100000 if DEBUG_PXA_UART1
 	default 0x42000000 if ARCH_GEMINI
@@ -981,6 +997,7 @@ config DEBUG_UART_PHYS
 	default 0xfff36000 if DEBUG_HIGHBANK_UART
 	default 0xfffff700 if ARCH_IOP33X
 	depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
+		DEBUG_LL_UART_EFM32 || \
 		DEBUG_UART_8250 || DEBUG_UART_PL01X
 
 config DEBUG_UART_VIRT
diff --git a/arch/arm/include/debug/efm32.S b/arch/arm/include/debug/efm32.S
new file mode 100644
index 000000000000..2265a199280c
--- /dev/null
+++ b/arch/arm/include/debug/efm32.S
@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2013 Pengutronix
+ * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#define UARTn_CMD		0x000c
+#define UARTn_CMD_TXEN			0x0004
+
+#define	UARTn_STATUS		0x0010
+#define	UARTn_STATUS_TXC		0x0020
+#define	UARTn_STATUS_TXBL		0x0040
+
+#define	UARTn_TXDATA		0x0034
+
+		.macro	addruart, rx, tmp
+		ldr	\rx, =(CONFIG_DEBUG_UART_PHYS)
+
+		/*
+		 * enable TX. The driver might disable it to save energy. We
+		 * don't care about disabling at the end as during debug power
+		 * consumption isn't that important.
+		 */
+		ldr	\tmp, =(UARTn_CMD_TXEN)
+		str	\tmp, [\rx, #UARTn_CMD]
+		.endm
+
+		.macro	senduart,rd,rx
+		strb	\rd, [\rx, #UARTn_TXDATA]
+		.endm
+
+		.macro	waituart,rd,rx
+1001:		ldr	\rd, [\rx, #UARTn_STATUS]
+		tst	\rd, #UARTn_STATUS_TXBL
+		beq	1001b
+		.endm
+
+		.macro	busyuart,rd,rx
+1001:		ldr	\rd, [\rx, UARTn_STATUS]
+		tst	\rd, #UARTn_STATUS_TXC
+		bne	1001b
+		.endm
-- 
cgit 


From 2523c67bb6962f98193dce1c73b6efb65a6ea92c Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Wed, 9 Oct 2013 17:01:21 +0100
Subject: ARM: 7852/1: cmpxchg: implement barrier-less cmpxchg64_local

Our cmpxchg64 macros are wrappers around atomic64_cmpxchg. Whilst this is
great for code re-use, there is a case for barrier-less cmpxchg where it
is known to be safe (for example cmpxchg64_local and cmpxchg-based
lockrefs).

This patch introduces a 64-bit cmpxchg implementation specifically
for the cmpxchg64_* macros, so that it can be later used by the lockref
code.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/include/asm/cmpxchg.h | 52 ++++++++++++++++++++++++++++++++++--------
 1 file changed, 42 insertions(+), 10 deletions(-)

diff --git a/arch/arm/include/asm/cmpxchg.h b/arch/arm/include/asm/cmpxchg.h
index 4f009c10540d..fbd978fc248f 100644
--- a/arch/arm/include/asm/cmpxchg.h
+++ b/arch/arm/include/asm/cmpxchg.h
@@ -223,6 +223,42 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr,
 	return ret;
 }
 
+static inline unsigned long long __cmpxchg64(unsigned long long *ptr,
+					     unsigned long long old,
+					     unsigned long long new)
+{
+	unsigned long long oldval;
+	unsigned long res;
+
+	__asm__ __volatile__(
+"1:	ldrexd		%1, %H1, [%3]\n"
+"	teq		%1, %4\n"
+"	teqeq		%H1, %H4\n"
+"	bne		2f\n"
+"	strexd		%0, %5, %H5, [%3]\n"
+"	teq		%0, #0\n"
+"	bne		1b\n"
+"2:"
+	: "=&r" (res), "=&r" (oldval), "+Qo" (*ptr)
+	: "r" (ptr), "r" (old), "r" (new)
+	: "cc");
+
+	return oldval;
+}
+
+static inline unsigned long long __cmpxchg64_mb(unsigned long long *ptr,
+						unsigned long long old,
+						unsigned long long new)
+{
+	unsigned long long ret;
+
+	smp_mb();
+	ret = __cmpxchg64(ptr, old, new);
+	smp_mb();
+
+	return ret;
+}
+
 #define cmpxchg_local(ptr,o,n)						\
 	((__typeof__(*(ptr)))__cmpxchg_local((ptr),			\
 				       (unsigned long)(o),		\
@@ -230,18 +266,14 @@ static inline unsigned long __cmpxchg_local(volatile void *ptr,
 				       sizeof(*(ptr))))
 
 #define cmpxchg64(ptr, o, n)						\
-	((__typeof__(*(ptr)))atomic64_cmpxchg(container_of((ptr),	\
-						atomic64_t,		\
-						counter),		\
-					      (unsigned long long)(o),	\
-					      (unsigned long long)(n)))
+	((__typeof__(*(ptr)))__cmpxchg64_mb((ptr),			\
+					(unsigned long long)(o),	\
+					(unsigned long long)(n)))
 
 #define cmpxchg64_local(ptr, o, n)					\
-	((__typeof__(*(ptr)))local64_cmpxchg(container_of((ptr),	\
-						local64_t,		\
-						a),			\
-					     (unsigned long long)(o),	\
-					     (unsigned long long)(n)))
+	((__typeof__(*(ptr)))__cmpxchg64((ptr),				\
+					(unsigned long long)(o),	\
+					(unsigned long long)(n)))
 
 #endif	/* __LINUX_ARM_ARCH__ >= 6 */
 
-- 
cgit 


From 775ebcc16b940ebf61bf54d6054a5e639f68b9d6 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Wed, 9 Oct 2013 17:17:18 +0100
Subject: ARM: 7853/1: cmpxchg: implement cmpxchg64_relaxed

This patch introduces cmpxchg64_relaxed for arm, which performs a 64-bit
cmpxchg operation without barrier semantics. cmpxchg64_local is updated
to use the new operation.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/include/asm/cmpxchg.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/cmpxchg.h b/arch/arm/include/asm/cmpxchg.h
index fbd978fc248f..df2fbba7efc8 100644
--- a/arch/arm/include/asm/cmpxchg.h
+++ b/arch/arm/include/asm/cmpxchg.h
@@ -270,11 +270,13 @@ static inline unsigned long long __cmpxchg64_mb(unsigned long long *ptr,
 					(unsigned long long)(o),	\
 					(unsigned long long)(n)))
 
-#define cmpxchg64_local(ptr, o, n)					\
+#define cmpxchg64_relaxed(ptr, o, n)					\
 	((__typeof__(*(ptr)))__cmpxchg64((ptr),				\
 					(unsigned long long)(o),	\
 					(unsigned long long)(n)))
 
+#define cmpxchg64_local(ptr, o, n)	cmpxchg64_relaxed((ptr), (o), (n))
+
 #endif	/* __LINUX_ARM_ARCH__ >= 6 */
 
 #endif /* __ASM_ARM_CMPXCHG_H */
-- 
cgit 


From 0cbad9c9dfe0c38e8ec7385b39087c005a6dee3e Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Wed, 9 Oct 2013 17:19:22 +0100
Subject: ARM: 7854/1: lockref: add support for lockless lockrefs using
 cmpxchg64

Our spinlocks are only 32-bit (2x16-bit tickets) and, on processors
with 64-bit atomic instructions, cmpxchg64 makes use of the double-word
exclusive accessors.

This patch wires up the cmpxchg-based lockless lockref implementation
for ARM.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig                | 1 +
 arch/arm/include/asm/spinlock.h | 8 ++++++--
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1ad6fb6c094d..fc184bcd7848 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -5,6 +5,7 @@ config ARM
 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 	select ARCH_HAVE_CUSTOM_GPIO_H
+	select ARCH_USE_CMPXCHG_LOCKREF
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select BUILDTIME_EXTABLE_SORT if MMU
 	select CLONE_BACKWARDS
diff --git a/arch/arm/include/asm/spinlock.h b/arch/arm/include/asm/spinlock.h
index 4f2c28060c9a..ed6c22919e47 100644
--- a/arch/arm/include/asm/spinlock.h
+++ b/arch/arm/include/asm/spinlock.h
@@ -127,10 +127,14 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock)
 	dsb_sev();
 }
 
+static inline int arch_spin_value_unlocked(arch_spinlock_t lock)
+{
+	return lock.tickets.owner == lock.tickets.next;
+}
+
 static inline int arch_spin_is_locked(arch_spinlock_t *lock)
 {
-	struct __raw_tickets tickets = ACCESS_ONCE(lock->tickets);
-	return tickets.owner != tickets.next;
+	return !arch_spin_value_unlocked(ACCESS_ONCE(*lock));
 }
 
 static inline int arch_spin_is_contended(arch_spinlock_t *lock)
-- 
cgit 


From 92871b94a5f9892e324c31960678387922c75049 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Wed, 9 Oct 2013 17:26:44 +0100
Subject: ARM: 7855/1: Add check for Cortex-A15 errata 798181 ECO

The work-around for A15 errata 798181 is not needed if appropriate ECO
fixes have been applied to r3p2 and earlier core revisions. This can be
checked by reading REVIDR register bits 4 and 9. If only bit 4 is set,
then the IPI broadcast can be skipped.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/include/asm/cputype.h  |  1 +
 arch/arm/include/asm/tlbflush.h | 48 +++++++++++++++--------------------------
 arch/arm/kernel/setup.c         |  2 ++
 arch/arm/kernel/smp_tlb.c       | 36 +++++++++++++++++++++++++++++--
 4 files changed, 54 insertions(+), 33 deletions(-)

diff --git a/arch/arm/include/asm/cputype.h b/arch/arm/include/asm/cputype.h
index 9672e978d50d..acdde76b39bb 100644
--- a/arch/arm/include/asm/cputype.h
+++ b/arch/arm/include/asm/cputype.h
@@ -10,6 +10,7 @@
 #define CPUID_TLBTYPE	3
 #define CPUID_MPUIR	4
 #define CPUID_MPIDR	5
+#define CPUID_REVIDR	6
 
 #ifdef CONFIG_CPU_V7M
 #define CPUID_EXT_PFR0	0x40
diff --git a/arch/arm/include/asm/tlbflush.h b/arch/arm/include/asm/tlbflush.h
index 38960264040c..def9e570199f 100644
--- a/arch/arm/include/asm/tlbflush.h
+++ b/arch/arm/include/asm/tlbflush.h
@@ -560,37 +560,6 @@ static inline void __flush_bp_all(void)
 		asm("mcr p15, 0, %0, c7, c1, 6" : : "r" (zero));
 }
 
-#include <asm/cputype.h>
-#ifdef CONFIG_ARM_ERRATA_798181
-static inline int erratum_a15_798181(void)
-{
-	unsigned int midr = read_cpuid_id();
-
-	/* Cortex-A15 r0p0..r3p2 affected */
-	if ((midr & 0xff0ffff0) != 0x410fc0f0 || midr > 0x413fc0f2)
-		return 0;
-	return 1;
-}
-
-static inline void dummy_flush_tlb_a15_erratum(void)
-{
-	/*
-	 * Dummy TLBIMVAIS. Using the unmapped address 0 and ASID 0.
-	 */
-	asm("mcr p15, 0, %0, c8, c3, 1" : : "r" (0));
-	dsb(ish);
-}
-#else
-static inline int erratum_a15_798181(void)
-{
-	return 0;
-}
-
-static inline void dummy_flush_tlb_a15_erratum(void)
-{
-}
-#endif
-
 /*
  *	flush_pmd_entry
  *
@@ -697,4 +666,21 @@ extern void flush_bp_all(void);
 
 #endif
 
+#ifndef __ASSEMBLY__
+#ifdef CONFIG_ARM_ERRATA_798181
+extern void erratum_a15_798181_init(void);
+#else
+static inline void erratum_a15_798181_init(void) {}
+#endif
+extern bool (*erratum_a15_798181_handler)(void);
+
+static inline bool erratum_a15_798181(void)
+{
+	if (unlikely(IS_ENABLED(CONFIG_ARM_ERRATA_798181) &&
+		erratum_a15_798181_handler))
+		return erratum_a15_798181_handler();
+	return false;
+}
+#endif
+
 #endif
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 0e1e2b3afa45..a4852dea088b 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -599,6 +599,8 @@ static void __init setup_processor(void)
 	elf_hwcap &= ~(HWCAP_THUMB | HWCAP_IDIVT);
 #endif
 
+	erratum_a15_798181_init();
+
 	feat_v6_fixup();
 
 	cacheid_init();
diff --git a/arch/arm/kernel/smp_tlb.c b/arch/arm/kernel/smp_tlb.c
index 83ccca303df8..95d063620b76 100644
--- a/arch/arm/kernel/smp_tlb.c
+++ b/arch/arm/kernel/smp_tlb.c
@@ -70,6 +70,40 @@ static inline void ipi_flush_bp_all(void *ignored)
 	local_flush_bp_all();
 }
 
+#ifdef CONFIG_ARM_ERRATA_798181
+bool (*erratum_a15_798181_handler)(void);
+
+static bool erratum_a15_798181_partial(void)
+{
+	asm("mcr p15, 0, %0, c8, c3, 1" : : "r" (0));
+	dsb(ish);
+	return false;
+}
+
+static bool erratum_a15_798181_broadcast(void)
+{
+	asm("mcr p15, 0, %0, c8, c3, 1" : : "r" (0));
+	dsb(ish);
+	return true;
+}
+
+void erratum_a15_798181_init(void)
+{
+	unsigned int midr = read_cpuid_id();
+	unsigned int revidr = read_cpuid(CPUID_REVIDR);
+
+	/* Cortex-A15 r0p0..r3p2 w/o ECO fix affected */
+	if ((midr & 0xff0ffff0) != 0x410fc0f0 || midr > 0x413fc0f2 ||
+	    (revidr & 0x210) == 0x210) {
+		return;
+	}
+	if (revidr & 0x10)
+		erratum_a15_798181_handler = erratum_a15_798181_partial;
+	else
+		erratum_a15_798181_handler = erratum_a15_798181_broadcast;
+}
+#endif
+
 static void ipi_flush_tlb_a15_erratum(void *arg)
 {
 	dmb();
@@ -80,7 +114,6 @@ static void broadcast_tlb_a15_erratum(void)
 	if (!erratum_a15_798181())
 		return;
 
-	dummy_flush_tlb_a15_erratum();
 	smp_call_function(ipi_flush_tlb_a15_erratum, NULL, 1);
 }
 
@@ -92,7 +125,6 @@ static void broadcast_tlb_mm_a15_erratum(struct mm_struct *mm)
 	if (!erratum_a15_798181())
 		return;
 
-	dummy_flush_tlb_a15_erratum();
 	this_cpu = get_cpu();
 	a15_erratum_get_cpumask(this_cpu, mm, &mask);
 	smp_call_function_many(&mask, ipi_flush_tlb_a15_erratum, NULL, 1);
-- 
cgit 


From a3a9ea656d19251326cdeaaa0b5adbfac41ddacf Mon Sep 17 00:00:00 2001
From: Steven Capper <steve.capper@linaro.org>
Date: Mon, 14 Oct 2013 09:49:10 +0100
Subject: ARM: 7858/1: mm: make UACCESS_WITH_MEMCPY huge page aware

The memory pinning code in uaccess_with_memcpy.c does not check
for HugeTLB or THP pmds, and will enter an infinite loop should
a __copy_to_user or __clear_user occur against a huge page.

This patch adds detection code for huge pages to pin_page_for_write.
As this code can be executed in a fast path it refers to the actual
pmds rather than the vma. If a HugeTLB or THP is found (they have
the same pmd representation on ARM), the page table spinlock is
taken to prevent modification whilst the page is pinned.

On ARM, huge pages are only represented as pmds, thus no huge pud
checks are performed. (For huge puds one would lock the page table
in a similar manner as in the pmd case).

Two helper functions are introduced; pmd_thp_or_huge will check
whether or not a page is huge or transparent huge (which have the
same pmd layout on ARM), and pmd_hugewillfault will detect whether
or not a page fault will occur on write to the page.

Running the following test (with the chunking from read_zero
removed):
 $ dd if=/dev/zero of=/dev/null bs=10M count=1024
Gave:  2.3 GB/s backed by normal pages,
       2.9 GB/s backed by huge pages,
       5.1 GB/s backed by huge pages, with page mask=HPAGE_MASK.

After some discussion, it was decided not to adopt the HPAGE_MASK,
as this would have a significant detrimental effect on the overall
system latency due to page_table_lock being held for too long.
This could be revisited if split huge page locks are adopted.

Signed-off-by: Steve Capper <steve.capper@linaro.org>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/include/asm/pgtable-2level.h |  7 ++++++
 arch/arm/include/asm/pgtable-3level.h |  3 +++
 arch/arm/lib/uaccess_with_memcpy.c    | 41 ++++++++++++++++++++++++++++++++---
 3 files changed, 48 insertions(+), 3 deletions(-)

diff --git a/arch/arm/include/asm/pgtable-2level.h b/arch/arm/include/asm/pgtable-2level.h
index f97ee02386ee..86a659a19526 100644
--- a/arch/arm/include/asm/pgtable-2level.h
+++ b/arch/arm/include/asm/pgtable-2level.h
@@ -181,6 +181,13 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr)
 
 #define set_pte_ext(ptep,pte,ext) cpu_set_pte_ext(ptep,pte,ext)
 
+/*
+ * We don't have huge page support for short descriptors, for the moment
+ * define empty stubs for use by pin_page_for_write.
+ */
+#define pmd_hugewillfault(pmd)	(0)
+#define pmd_thp_or_huge(pmd)	(0)
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* _ASM_PGTABLE_2LEVEL_H */
diff --git a/arch/arm/include/asm/pgtable-3level.h b/arch/arm/include/asm/pgtable-3level.h
index 5689c18c85f5..39c54cfa03e9 100644
--- a/arch/arm/include/asm/pgtable-3level.h
+++ b/arch/arm/include/asm/pgtable-3level.h
@@ -206,6 +206,9 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long addr)
 #define __HAVE_ARCH_PMD_WRITE
 #define pmd_write(pmd)		(!(pmd_val(pmd) & PMD_SECT_RDONLY))
 
+#define pmd_hugewillfault(pmd)	(!pmd_young(pmd) || !pmd_write(pmd))
+#define pmd_thp_or_huge(pmd)	(pmd_huge(pmd) || pmd_trans_huge(pmd))
+
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 #define pmd_trans_huge(pmd)	(pmd_val(pmd) && !(pmd_val(pmd) & PMD_TABLE_BIT))
 #define pmd_trans_splitting(pmd) (pmd_val(pmd) & PMD_SECT_SPLITTING)
diff --git a/arch/arm/lib/uaccess_with_memcpy.c b/arch/arm/lib/uaccess_with_memcpy.c
index 025f742dd4df..3e58d710013c 100644
--- a/arch/arm/lib/uaccess_with_memcpy.c
+++ b/arch/arm/lib/uaccess_with_memcpy.c
@@ -18,6 +18,7 @@
 #include <linux/hardirq.h> /* for in_atomic() */
 #include <linux/gfp.h>
 #include <linux/highmem.h>
+#include <linux/hugetlb.h>
 #include <asm/current.h>
 #include <asm/page.h>
 
@@ -40,7 +41,35 @@ pin_page_for_write(const void __user *_addr, pte_t **ptep, spinlock_t **ptlp)
 		return 0;
 
 	pmd = pmd_offset(pud, addr);
-	if (unlikely(pmd_none(*pmd) || pmd_bad(*pmd)))
+	if (unlikely(pmd_none(*pmd)))
+		return 0;
+
+	/*
+	 * A pmd can be bad if it refers to a HugeTLB or THP page.
+	 *
+	 * Both THP and HugeTLB pages have the same pmd layout
+	 * and should not be manipulated by the pte functions.
+	 *
+	 * Lock the page table for the destination and check
+	 * to see that it's still huge and whether or not we will
+	 * need to fault on write, or if we have a splitting THP.
+	 */
+	if (unlikely(pmd_thp_or_huge(*pmd))) {
+		ptl = &current->mm->page_table_lock;
+		spin_lock(ptl);
+		if (unlikely(!pmd_thp_or_huge(*pmd)
+			|| pmd_hugewillfault(*pmd)
+			|| pmd_trans_splitting(*pmd))) {
+			spin_unlock(ptl);
+			return 0;
+		}
+
+		*ptep = NULL;
+		*ptlp = ptl;
+		return 1;
+	}
+
+	if (unlikely(pmd_bad(*pmd)))
 		return 0;
 
 	pte = pte_offset_map_lock(current->mm, pmd, addr, &ptl);
@@ -94,7 +123,10 @@ __copy_to_user_memcpy(void __user *to, const void *from, unsigned long n)
 		from += tocopy;
 		n -= tocopy;
 
-		pte_unmap_unlock(pte, ptl);
+		if (pte)
+			pte_unmap_unlock(pte, ptl);
+		else
+			spin_unlock(ptl);
 	}
 	if (!atomic)
 		up_read(&current->mm->mmap_sem);
@@ -147,7 +179,10 @@ __clear_user_memset(void __user *addr, unsigned long n)
 		addr += tocopy;
 		n -= tocopy;
 
-		pte_unmap_unlock(pte, ptl);
+		if (pte)
+			pte_unmap_unlock(pte, ptl);
+		else
+			spin_unlock(ptl);
 	}
 	up_read(&current->mm->mmap_sem);
 
-- 
cgit 


From 728fae6f6f73b34cf94afe6c87ce102889abc786 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael@free-electrons.com>
Date: Mon, 14 Oct 2013 04:42:20 +0100
Subject: ARM: 7856/1: timer-sp: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/common/timer-sp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/common/timer-sp.c b/arch/arm/common/timer-sp.c
index e901d0f3e0bb..ce922d0ea7aa 100644
--- a/arch/arm/common/timer-sp.c
+++ b/arch/arm/common/timer-sp.c
@@ -175,7 +175,7 @@ static struct clock_event_device sp804_clockevent = {
 
 static struct irqaction sp804_timer_irq = {
 	.name		= "timer",
-	.flags		= IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
+	.flags		= IRQF_TIMER | IRQF_IRQPOLL,
 	.handler	= sp804_timer_interrupt,
 	.dev_id		= &sp804_clockevent,
 };
-- 
cgit 


From c527c3b939cdb2e75777fe690e067b6e199c44fc Mon Sep 17 00:00:00 2001
From: Rohit Vaswani <rvaswani@codeaurora.org>
Date: Thu, 17 Oct 2013 22:07:27 +0100
Subject: ARM: 7859/1: debug: Create CONFIG_DEBUG_MSM_UART and re-organize the
 selects for MSM

Create the hidden config DEBUG_MSM_UART and clean-up
the default selection for CONFIG_DEBUG_LL_INCLUDE.

Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig.debug | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 2b3206824353..8e9665d5fed3 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -318,6 +318,7 @@ choice
 	config DEBUG_MSM_UART1
 		bool "Kernel low-level debugging messages via MSM UART1"
 		depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
+		select DEBUG_MSM_UART
 		help
 		  Say Y here if you want the debug print routines to direct
 		  their output to the first serial port on MSM devices.
@@ -325,6 +326,7 @@ choice
 	config DEBUG_MSM_UART2
 		bool "Kernel low-level debugging messages via MSM UART2"
 		depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
+		select DEBUG_MSM_UART
 		help
 		  Say Y here if you want the debug print routines to direct
 		  their output to the second serial port on MSM devices.
@@ -332,6 +334,7 @@ choice
 	config DEBUG_MSM_UART3
 		bool "Kernel low-level debugging messages via MSM UART3"
 		depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
+		select DEBUG_MSM_UART
 		help
 		  Say Y here if you want the debug print routines to direct
 		  their output to the third serial port on MSM devices.
@@ -340,6 +343,7 @@ choice
 		bool "Kernel low-level debugging messages via MSM 8660 UART"
 		depends on ARCH_MSM8X60
 		select MSM_HAS_DEBUG_UART_HS
+		select DEBUG_MSM_UART
 		help
 		  Say Y here if you want the debug print routines to direct
 		  their output to the serial port on MSM 8660 devices.
@@ -348,6 +352,7 @@ choice
 		bool "Kernel low-level debugging messages via MSM 8960 UART"
 		depends on ARCH_MSM8960
 		select MSM_HAS_DEBUG_UART_HS
+		select DEBUG_MSM_UART
 		help
 		  Say Y here if you want the debug print routines to direct
 		  their output to the serial port on MSM 8960 devices.
@@ -894,6 +899,10 @@ config DEBUG_STI_UART
 	bool
 	depends on ARCH_STI
 
+config DEBUG_MSM_UART
+	bool
+	depends on ARCH_MSM
+
 config DEBUG_LL_INCLUDE
 	string
 	default "debug/8250.S" if DEBUG_LL_UART_8250 || DEBUG_UART_8250
@@ -910,11 +919,7 @@ config DEBUG_LL_INCLUDE
 				 DEBUG_IMX53_UART ||\
 				 DEBUG_IMX6Q_UART || \
 				 DEBUG_IMX6SL_UART
-	default "debug/msm.S" if DEBUG_MSM_UART1 || \
-				 DEBUG_MSM_UART2 || \
-				 DEBUG_MSM_UART3 || \
-				 DEBUG_MSM8660_UART || \
-				 DEBUG_MSM8960_UART
+	default "debug/msm.S" if DEBUG_MSM_UART
 	default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
 	default "debug/sirf.S" if DEBUG_SIRFPRIMA2_UART1 || DEBUG_SIRFMARCO_UART1
 	default "debug/sti.S" if DEBUG_STI_UART
-- 
cgit 


From 3c8828f6a0cb3bf1bae04a98135da3c53e20c217 Mon Sep 17 00:00:00 2001
From: Rohit Vaswani <rvaswani@codeaurora.org>
Date: Thu, 17 Oct 2013 22:15:35 +0100
Subject: ARM: 7860/1: debug: msm: Add DEBUG_LL support for ARCH_MSM8974

Add debug uart support for MSM8974. This patch adds a Kconfig
entry and the base address for the debug uart.

Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig.debug       | 9 +++++++++
 arch/arm/include/debug/msm.S | 5 +++++
 2 files changed, 14 insertions(+)

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 8e9665d5fed3..a8f305b07f29 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -357,6 +357,15 @@ choice
 		  Say Y here if you want the debug print routines to direct
 		  their output to the serial port on MSM 8960 devices.
 
+	config DEBUG_MSM8974_UART
+		bool "Kernel low-level debugging messages via MSM 8974 UART"
+		depends on ARCH_MSM8974
+		select MSM_HAS_DEBUG_UART_HS
+		select DEBUG_MSM_UART
+		help
+		  Say Y here if you want the debug print routines to direct
+		  their output to the serial port on MSM 8974 devices.
+
 	config DEBUG_MVEBU_UART
 		bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
 		depends on ARCH_MVEBU
diff --git a/arch/arm/include/debug/msm.S b/arch/arm/include/debug/msm.S
index 9166e1bc470e..9d653d475903 100644
--- a/arch/arm/include/debug/msm.S
+++ b/arch/arm/include/debug/msm.S
@@ -44,6 +44,11 @@
 #ifdef CONFIG_DEBUG_MSM8960_UART
 #define MSM_DEBUG_UART_BASE	0xF0040000
 #define MSM_DEBUG_UART_PHYS	0x16440000
+#endif
+
+#ifdef CONFIG_DEBUG_MSM8974_UART
+#define MSM_DEBUG_UART_BASE	0xFA71E000
+#define MSM_DEBUG_UART_PHYS	0xF991E000
 #endif
 
 	.macro	addruart, rp, rv, tmp
-- 
cgit 


From 39792c7cf3111d69dc4aa0923859d8b929e9039f Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Fri, 18 Oct 2013 22:06:03 +0100
Subject: ARM: 7861/1: cacheflush: consolidate single-CPU ARMv7 cache disabling
 code

This code is becoming duplicated in many places.  So let's consolidate
it into a handy macro that is known to be right and available for reuse.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/include/asm/cacheflush.h | 46 ++++++++++++++++++++++++++++++++
 arch/arm/mach-vexpress/dcscb.c    | 56 +++------------------------------------
 arch/arm/mach-vexpress/tc2_pm.c   | 48 ++-------------------------------
 3 files changed, 52 insertions(+), 98 deletions(-)

diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h
index 15f2d5bf8875..ee753f1749cd 100644
--- a/arch/arm/include/asm/cacheflush.h
+++ b/arch/arm/include/asm/cacheflush.h
@@ -435,4 +435,50 @@ static inline void __sync_cache_range_r(volatile void *p, size_t size)
 #define sync_cache_w(ptr) __sync_cache_range_w(ptr, sizeof *(ptr))
 #define sync_cache_r(ptr) __sync_cache_range_r(ptr, sizeof *(ptr))
 
+/*
+ * Disabling cache access for one CPU in an ARMv7 SMP system is tricky.
+ * To do so we must:
+ *
+ * - Clear the SCTLR.C bit to prevent further cache allocations
+ * - Flush the desired level of cache
+ * - Clear the ACTLR "SMP" bit to disable local coherency
+ *
+ * ... and so without any intervening memory access in between those steps,
+ * not even to the stack.
+ *
+ * WARNING -- After this has been called:
+ *
+ * - No ldrex/strex (and similar) instructions must be used.
+ * - The CPU is obviously no longer coherent with the other CPUs.
+ * - This is unlikely to work as expected if Linux is running non-secure.
+ *
+ * Note:
+ *
+ * - This is known to apply to several ARMv7 processor implementations,
+ *   however some exceptions may exist.  Caveat emptor.
+ *
+ * - The clobber list is dictated by the call to v7_flush_dcache_*.
+ *   fp is preserved to the stack explicitly prior disabling the cache
+ *   since adding it to the clobber list is incompatible with having
+ *   CONFIG_FRAME_POINTER=y.  ip is saved as well if ever r12-clobbering
+ *   trampoline are inserted by the linker and to keep sp 64-bit aligned.
+ */
+#define v7_exit_coherency_flush(level) \
+	asm volatile( \
+	"stmfd	sp!, {fp, ip} \n\t" \
+	"mrc	p15, 0, r0, c1, c0, 0	@ get SCTLR \n\t" \
+	"bic	r0, r0, #"__stringify(CR_C)" \n\t" \
+	"mcr	p15, 0, r0, c1, c0, 0	@ set SCTLR \n\t" \
+	"isb	\n\t" \
+	"bl	v7_flush_dcache_"__stringify(level)" \n\t" \
+	"clrex	\n\t" \
+	"mrc	p15, 0, r0, c1, c0, 1	@ get ACTLR \n\t" \
+	"bic	r0, r0, #(1 << 6)	@ disable local coherency \n\t" \
+	"mcr	p15, 0, r0, c1, c0, 1	@ set ACTLR \n\t" \
+	"isb	\n\t" \
+	"dsb	\n\t" \
+	"ldmfd	sp!, {fp, ip}" \
+	: : : "r0","r1","r2","r3","r4","r5","r6","r7", \
+	      "r9","r10","lr","memory" )
+
 #endif
diff --git a/arch/arm/mach-vexpress/dcscb.c b/arch/arm/mach-vexpress/dcscb.c
index 3a6384c6c435..14d499688736 100644
--- a/arch/arm/mach-vexpress/dcscb.c
+++ b/arch/arm/mach-vexpress/dcscb.c
@@ -133,38 +133,8 @@ static void dcscb_power_down(void)
 	if (last_man && __mcpm_outbound_enter_critical(cpu, cluster)) {
 		arch_spin_unlock(&dcscb_lock);
 
-		/*
-		 * Flush all cache levels for this cluster.
-		 *
-		 * To do so we do:
-		 * - Clear the SCTLR.C bit to prevent further cache allocations
-		 * - Flush the whole cache
-		 * - Clear the ACTLR "SMP" bit to disable local coherency
-		 *
-		 * Let's do it in the safest possible way i.e. with
-		 * no memory access within the following sequence
-		 * including to the stack.
-		 *
-		 * Note: fp is preserved to the stack explicitly prior doing
-		 * this since adding it to the clobber list is incompatible
-		 * with having CONFIG_FRAME_POINTER=y.
-		 */
-		asm volatile(
-		"str	fp, [sp, #-4]! \n\t"
-		"mrc	p15, 0, r0, c1, c0, 0	@ get CR \n\t"
-		"bic	r0, r0, #"__stringify(CR_C)" \n\t"
-		"mcr	p15, 0, r0, c1, c0, 0	@ set CR \n\t"
-		"isb	\n\t"
-		"bl	v7_flush_dcache_all \n\t"
-		"clrex	\n\t"
-		"mrc	p15, 0, r0, c1, c0, 1	@ get AUXCR \n\t"
-		"bic	r0, r0, #(1 << 6)	@ disable local coherency \n\t"
-		"mcr	p15, 0, r0, c1, c0, 1	@ set AUXCR \n\t"
-		"isb	\n\t"
-		"dsb	\n\t"
-		"ldr	fp, [sp], #4"
-		: : : "r0","r1","r2","r3","r4","r5","r6","r7",
-		      "r9","r10","lr","memory");
+		/* Flush all cache levels for this cluster. */
+		v7_exit_coherency_flush(all);
 
 		/*
 		 * This is a harmless no-op.  On platforms with a real
@@ -183,26 +153,8 @@ static void dcscb_power_down(void)
 	} else {
 		arch_spin_unlock(&dcscb_lock);
 
-		/*
-		 * Flush the local CPU cache.
-		 * Let's do it in the safest possible way as above.
-		 */
-		asm volatile(
-		"str	fp, [sp, #-4]! \n\t"
-		"mrc	p15, 0, r0, c1, c0, 0	@ get CR \n\t"
-		"bic	r0, r0, #"__stringify(CR_C)" \n\t"
-		"mcr	p15, 0, r0, c1, c0, 0	@ set CR \n\t"
-		"isb	\n\t"
-		"bl	v7_flush_dcache_louis \n\t"
-		"clrex	\n\t"
-		"mrc	p15, 0, r0, c1, c0, 1	@ get AUXCR \n\t"
-		"bic	r0, r0, #(1 << 6)	@ disable local coherency \n\t"
-		"mcr	p15, 0, r0, c1, c0, 1	@ set AUXCR \n\t"
-		"isb	\n\t"
-		"dsb	\n\t"
-		"ldr	fp, [sp], #4"
-		: : : "r0","r1","r2","r3","r4","r5","r6","r7",
-		      "r9","r10","lr","memory");
+		/* Disable and flush the local CPU cache. */
+		v7_exit_coherency_flush(louis);
 	}
 
 	__mcpm_cpu_down(cpu, cluster);
diff --git a/arch/arm/mach-vexpress/tc2_pm.c b/arch/arm/mach-vexpress/tc2_pm.c
index e6eb48192912..4eb92ebfd953 100644
--- a/arch/arm/mach-vexpress/tc2_pm.c
+++ b/arch/arm/mach-vexpress/tc2_pm.c
@@ -156,32 +156,7 @@ static void tc2_pm_down(u64 residency)
 			: : "r" (0x400) );
 		}
 
-		/*
-		 * We need to disable and flush the whole (L1 and L2) cache.
-		 * Let's do it in the safest possible way i.e. with
-		 * no memory access within the following sequence
-		 * including the stack.
-		 *
-		 * Note: fp is preserved to the stack explicitly prior doing
-		 * this since adding it to the clobber list is incompatible
-		 * with having CONFIG_FRAME_POINTER=y.
-		 */
-		asm volatile(
-		"str	fp, [sp, #-4]! \n\t"
-		"mrc	p15, 0, r0, c1, c0, 0	@ get CR \n\t"
-		"bic	r0, r0, #"__stringify(CR_C)" \n\t"
-		"mcr	p15, 0, r0, c1, c0, 0	@ set CR \n\t"
-		"isb	\n\t"
-		"bl	v7_flush_dcache_all \n\t"
-		"clrex	\n\t"
-		"mrc	p15, 0, r0, c1, c0, 1	@ get AUXCR \n\t"
-		"bic	r0, r0, #(1 << 6)	@ disable local coherency \n\t"
-		"mcr	p15, 0, r0, c1, c0, 1	@ set AUXCR \n\t"
-		"isb	\n\t"
-		"dsb	\n\t"
-		"ldr	fp, [sp], #4"
-		: : : "r0","r1","r2","r3","r4","r5","r6","r7",
-		      "r9","r10","lr","memory");
+		v7_exit_coherency_flush(all);
 
 		cci_disable_port_by_cpu(mpidr);
 
@@ -197,26 +172,7 @@ static void tc2_pm_down(u64 residency)
 
 		arch_spin_unlock(&tc2_pm_lock);
 
-		/*
-		 * We need to disable and flush only the L1 cache.
-		 * Let's do it in the safest possible way as above.
-		 */
-		asm volatile(
-		"str	fp, [sp, #-4]! \n\t"
-		"mrc	p15, 0, r0, c1, c0, 0	@ get CR \n\t"
-		"bic	r0, r0, #"__stringify(CR_C)" \n\t"
-		"mcr	p15, 0, r0, c1, c0, 0	@ set CR \n\t"
-		"isb	\n\t"
-		"bl	v7_flush_dcache_louis \n\t"
-		"clrex	\n\t"
-		"mrc	p15, 0, r0, c1, c0, 1	@ get AUXCR \n\t"
-		"bic	r0, r0, #(1 << 6)	@ disable local coherency \n\t"
-		"mcr	p15, 0, r0, c1, c0, 1	@ set AUXCR \n\t"
-		"isb	\n\t"
-		"dsb	\n\t"
-		"ldr	fp, [sp], #4"
-		: : : "r0","r1","r2","r3","r4","r5","r6","r7",
-		      "r9","r10","lr","memory");
+		v7_exit_coherency_flush(louis);
 	}
 
 	__mcpm_cpu_down(cpu, cluster);
-- 
cgit 


From 1436c1aa626d0bc0e35c5c5231127086e80ab24a Mon Sep 17 00:00:00 2001
From: Christoph Lameter <cl@linux.com>
Date: Mon, 21 Oct 2013 13:17:08 +0100
Subject: ARM: 7862/1: pcpu: replace __get_cpu_var_uses

This is the ARM part of Christoph's patchset cleaning up the various
uses of __get_cpu_var across the tree.

The idea is to convert __get_cpu_var into either an explicit address
calculation using this_cpu_ptr() or into a use of this_cpu operations
that use the offset. Thereby address calculations are avoided and fewer
registers are used when code is generated.

[will: fixed debug ref counting checks and pcpu array accesses]

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/hw_breakpoint.c    | 14 +++++++-------
 arch/arm/kernel/kprobes.c          |  8 ++++----
 arch/arm/kernel/perf_event_cpu.c   |  2 +-
 arch/arm/kvm/arm.c                 |  6 +++---
 arch/arm64/kernel/debug-monitors.c | 13 ++++++-------
 arch/arm64/kernel/hw_breakpoint.c  | 22 +++++++++++-----------
 arch/arm64/kernel/perf_event.c     |  4 ++--
 7 files changed, 34 insertions(+), 35 deletions(-)

diff --git a/arch/arm/kernel/hw_breakpoint.c b/arch/arm/kernel/hw_breakpoint.c
index 7b95de601357..3d446605cbf8 100644
--- a/arch/arm/kernel/hw_breakpoint.c
+++ b/arch/arm/kernel/hw_breakpoint.c
@@ -344,13 +344,13 @@ int arch_install_hw_breakpoint(struct perf_event *bp)
 		/* Breakpoint */
 		ctrl_base = ARM_BASE_BCR;
 		val_base = ARM_BASE_BVR;
-		slots = (struct perf_event **)__get_cpu_var(bp_on_reg);
+		slots = this_cpu_ptr(bp_on_reg);
 		max_slots = core_num_brps;
 	} else {
 		/* Watchpoint */
 		ctrl_base = ARM_BASE_WCR;
 		val_base = ARM_BASE_WVR;
-		slots = (struct perf_event **)__get_cpu_var(wp_on_reg);
+		slots = this_cpu_ptr(wp_on_reg);
 		max_slots = core_num_wrps;
 	}
 
@@ -396,12 +396,12 @@ void arch_uninstall_hw_breakpoint(struct perf_event *bp)
 	if (info->ctrl.type == ARM_BREAKPOINT_EXECUTE) {
 		/* Breakpoint */
 		base = ARM_BASE_BCR;
-		slots = (struct perf_event **)__get_cpu_var(bp_on_reg);
+		slots = this_cpu_ptr(bp_on_reg);
 		max_slots = core_num_brps;
 	} else {
 		/* Watchpoint */
 		base = ARM_BASE_WCR;
-		slots = (struct perf_event **)__get_cpu_var(wp_on_reg);
+		slots = this_cpu_ptr(wp_on_reg);
 		max_slots = core_num_wrps;
 	}
 
@@ -697,7 +697,7 @@ static void watchpoint_handler(unsigned long addr, unsigned int fsr,
 	struct arch_hw_breakpoint *info;
 	struct arch_hw_breakpoint_ctrl ctrl;
 
-	slots = (struct perf_event **)__get_cpu_var(wp_on_reg);
+	slots = this_cpu_ptr(wp_on_reg);
 
 	for (i = 0; i < core_num_wrps; ++i) {
 		rcu_read_lock();
@@ -768,7 +768,7 @@ static void watchpoint_single_step_handler(unsigned long pc)
 	struct perf_event *wp, **slots;
 	struct arch_hw_breakpoint *info;
 
-	slots = (struct perf_event **)__get_cpu_var(wp_on_reg);
+	slots = this_cpu_ptr(wp_on_reg);
 
 	for (i = 0; i < core_num_wrps; ++i) {
 		rcu_read_lock();
@@ -802,7 +802,7 @@ static void breakpoint_handler(unsigned long unknown, struct pt_regs *regs)
 	struct arch_hw_breakpoint *info;
 	struct arch_hw_breakpoint_ctrl ctrl;
 
-	slots = (struct perf_event **)__get_cpu_var(bp_on_reg);
+	slots = this_cpu_ptr(bp_on_reg);
 
 	/* The exception entry code places the amended lr in the PC. */
 	addr = regs->ARM_pc;
diff --git a/arch/arm/kernel/kprobes.c b/arch/arm/kernel/kprobes.c
index 170e9f34003f..a7b621ece23d 100644
--- a/arch/arm/kernel/kprobes.c
+++ b/arch/arm/kernel/kprobes.c
@@ -171,13 +171,13 @@ static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb)
 
 static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb)
 {
-	__get_cpu_var(current_kprobe) = kcb->prev_kprobe.kp;
+	__this_cpu_write(current_kprobe, kcb->prev_kprobe.kp);
 	kcb->kprobe_status = kcb->prev_kprobe.status;
 }
 
 static void __kprobes set_current_kprobe(struct kprobe *p)
 {
-	__get_cpu_var(current_kprobe) = p;
+	__this_cpu_write(current_kprobe, p);
 }
 
 static void __kprobes
@@ -421,10 +421,10 @@ static __used __kprobes void *trampoline_handler(struct pt_regs *regs)
 			continue;
 
 		if (ri->rp && ri->rp->handler) {
-			__get_cpu_var(current_kprobe) = &ri->rp->kp;
+			__this_cpu_write(current_kprobe, &ri->rp->kp);
 			get_kprobe_ctlblk()->kprobe_status = KPROBE_HIT_ACTIVE;
 			ri->rp->handler(ri, regs);
-			__get_cpu_var(current_kprobe) = NULL;
+			__this_cpu_write(current_kprobe, NULL);
 		}
 
 		orig_ret_address = (unsigned long)ri->ret_addr;
diff --git a/arch/arm/kernel/perf_event_cpu.c b/arch/arm/kernel/perf_event_cpu.c
index 8d6147b2001f..d85055cd24ba 100644
--- a/arch/arm/kernel/perf_event_cpu.c
+++ b/arch/arm/kernel/perf_event_cpu.c
@@ -68,7 +68,7 @@ EXPORT_SYMBOL_GPL(perf_num_counters);
 
 static struct pmu_hw_events *cpu_pmu_get_cpu_events(void)
 {
-	return &__get_cpu_var(cpu_hw_events);
+	return this_cpu_ptr(&cpu_hw_events);
 }
 
 static void cpu_pmu_free_irq(struct arm_pmu *cpu_pmu)
diff --git a/arch/arm/kvm/arm.c b/arch/arm/kvm/arm.c
index 9c697db2787e..aea7ccb8d397 100644
--- a/arch/arm/kvm/arm.c
+++ b/arch/arm/kvm/arm.c
@@ -65,7 +65,7 @@ static bool vgic_present;
 static void kvm_arm_set_running_vcpu(struct kvm_vcpu *vcpu)
 {
 	BUG_ON(preemptible());
-	__get_cpu_var(kvm_arm_running_vcpu) = vcpu;
+	__this_cpu_write(kvm_arm_running_vcpu, vcpu);
 }
 
 /**
@@ -75,7 +75,7 @@ static void kvm_arm_set_running_vcpu(struct kvm_vcpu *vcpu)
 struct kvm_vcpu *kvm_arm_get_running_vcpu(void)
 {
 	BUG_ON(preemptible());
-	return __get_cpu_var(kvm_arm_running_vcpu);
+	return __this_cpu_read(kvm_arm_running_vcpu);
 }
 
 /**
@@ -815,7 +815,7 @@ static void cpu_init_hyp_mode(void *dummy)
 
 	boot_pgd_ptr = kvm_mmu_get_boot_httbr();
 	pgd_ptr = kvm_mmu_get_httbr();
-	stack_page = __get_cpu_var(kvm_arm_hyp_stack_page);
+	stack_page = __this_cpu_read(kvm_arm_hyp_stack_page);
 	hyp_stack_ptr = stack_page + PAGE_SIZE;
 	vector_ptr = (unsigned long)__kvm_hyp_vector;
 
diff --git a/arch/arm64/kernel/debug-monitors.c b/arch/arm64/kernel/debug-monitors.c
index cbfacf7fb438..6a0a9b132d7a 100644
--- a/arch/arm64/kernel/debug-monitors.c
+++ b/arch/arm64/kernel/debug-monitors.c
@@ -27,7 +27,6 @@
 #include <linux/uaccess.h>
 
 #include <asm/debug-monitors.h>
-#include <asm/local.h>
 #include <asm/cputype.h>
 #include <asm/system_misc.h>
 
@@ -89,8 +88,8 @@ early_param("nodebugmon", early_debug_disable);
  * Keep track of debug users on each core.
  * The ref counts are per-cpu so we use a local_t type.
  */
-static DEFINE_PER_CPU(local_t, mde_ref_count);
-static DEFINE_PER_CPU(local_t, kde_ref_count);
+static DEFINE_PER_CPU(int, mde_ref_count);
+static DEFINE_PER_CPU(int, kde_ref_count);
 
 void enable_debug_monitors(enum debug_el el)
 {
@@ -98,11 +97,11 @@ void enable_debug_monitors(enum debug_el el)
 
 	WARN_ON(preemptible());
 
-	if (local_inc_return(&__get_cpu_var(mde_ref_count)) == 1)
+	if (this_cpu_inc_return(mde_ref_count) == 1)
 		enable = DBG_MDSCR_MDE;
 
 	if (el == DBG_ACTIVE_EL1 &&
-	    local_inc_return(&__get_cpu_var(kde_ref_count)) == 1)
+	    this_cpu_inc_return(kde_ref_count) == 1)
 		enable |= DBG_MDSCR_KDE;
 
 	if (enable && debug_enabled) {
@@ -118,11 +117,11 @@ void disable_debug_monitors(enum debug_el el)
 
 	WARN_ON(preemptible());
 
-	if (local_dec_and_test(&__get_cpu_var(mde_ref_count)))
+	if (this_cpu_dec_return(mde_ref_count) == 0)
 		disable = ~DBG_MDSCR_MDE;
 
 	if (el == DBG_ACTIVE_EL1 &&
-	    local_dec_and_test(&__get_cpu_var(kde_ref_count)))
+	    this_cpu_dec_return(kde_ref_count) == 0)
 		disable &= ~DBG_MDSCR_KDE;
 
 	if (disable) {
diff --git a/arch/arm64/kernel/hw_breakpoint.c b/arch/arm64/kernel/hw_breakpoint.c
index 329218ca9ffb..ff516f6691e4 100644
--- a/arch/arm64/kernel/hw_breakpoint.c
+++ b/arch/arm64/kernel/hw_breakpoint.c
@@ -184,14 +184,14 @@ int arch_install_hw_breakpoint(struct perf_event *bp)
 		/* Breakpoint */
 		ctrl_reg = AARCH64_DBG_REG_BCR;
 		val_reg = AARCH64_DBG_REG_BVR;
-		slots = __get_cpu_var(bp_on_reg);
+		slots = this_cpu_ptr(bp_on_reg);
 		max_slots = core_num_brps;
 		reg_enable = !debug_info->bps_disabled;
 	} else {
 		/* Watchpoint */
 		ctrl_reg = AARCH64_DBG_REG_WCR;
 		val_reg = AARCH64_DBG_REG_WVR;
-		slots = __get_cpu_var(wp_on_reg);
+		slots = this_cpu_ptr(wp_on_reg);
 		max_slots = core_num_wrps;
 		reg_enable = !debug_info->wps_disabled;
 	}
@@ -230,12 +230,12 @@ void arch_uninstall_hw_breakpoint(struct perf_event *bp)
 	if (info->ctrl.type == ARM_BREAKPOINT_EXECUTE) {
 		/* Breakpoint */
 		base = AARCH64_DBG_REG_BCR;
-		slots = __get_cpu_var(bp_on_reg);
+		slots = this_cpu_ptr(bp_on_reg);
 		max_slots = core_num_brps;
 	} else {
 		/* Watchpoint */
 		base = AARCH64_DBG_REG_WCR;
-		slots = __get_cpu_var(wp_on_reg);
+		slots = this_cpu_ptr(wp_on_reg);
 		max_slots = core_num_wrps;
 	}
 
@@ -505,11 +505,11 @@ static void toggle_bp_registers(int reg, enum debug_el el, int enable)
 
 	switch (reg) {
 	case AARCH64_DBG_REG_BCR:
-		slots = __get_cpu_var(bp_on_reg);
+		slots = this_cpu_ptr(bp_on_reg);
 		max_slots = core_num_brps;
 		break;
 	case AARCH64_DBG_REG_WCR:
-		slots = __get_cpu_var(wp_on_reg);
+		slots = this_cpu_ptr(wp_on_reg);
 		max_slots = core_num_wrps;
 		break;
 	default:
@@ -546,7 +546,7 @@ static int breakpoint_handler(unsigned long unused, unsigned int esr,
 	struct debug_info *debug_info;
 	struct arch_hw_breakpoint_ctrl ctrl;
 
-	slots = (struct perf_event **)__get_cpu_var(bp_on_reg);
+	slots = this_cpu_ptr(bp_on_reg);
 	addr = instruction_pointer(regs);
 	debug_info = &current->thread.debug;
 
@@ -596,7 +596,7 @@ unlock:
 			user_enable_single_step(current);
 	} else {
 		toggle_bp_registers(AARCH64_DBG_REG_BCR, DBG_ACTIVE_EL1, 0);
-		kernel_step = &__get_cpu_var(stepping_kernel_bp);
+		kernel_step = this_cpu_ptr(&stepping_kernel_bp);
 
 		if (*kernel_step != ARM_KERNEL_STEP_NONE)
 			return 0;
@@ -623,7 +623,7 @@ static int watchpoint_handler(unsigned long addr, unsigned int esr,
 	struct arch_hw_breakpoint *info;
 	struct arch_hw_breakpoint_ctrl ctrl;
 
-	slots = (struct perf_event **)__get_cpu_var(wp_on_reg);
+	slots = this_cpu_ptr(wp_on_reg);
 	debug_info = &current->thread.debug;
 
 	for (i = 0; i < core_num_wrps; ++i) {
@@ -698,7 +698,7 @@ unlock:
 			user_enable_single_step(current);
 	} else {
 		toggle_bp_registers(AARCH64_DBG_REG_WCR, DBG_ACTIVE_EL1, 0);
-		kernel_step = &__get_cpu_var(stepping_kernel_bp);
+		kernel_step = this_cpu_ptr(&stepping_kernel_bp);
 
 		if (*kernel_step != ARM_KERNEL_STEP_NONE)
 			return 0;
@@ -722,7 +722,7 @@ int reinstall_suspended_bps(struct pt_regs *regs)
 	struct debug_info *debug_info = &current->thread.debug;
 	int handled_exception = 0, *kernel_step;
 
-	kernel_step = &__get_cpu_var(stepping_kernel_bp);
+	kernel_step = this_cpu_ptr(&stepping_kernel_bp);
 
 	/*
 	 * Called from single-step exception handler.
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c
index cea1594ff933..6983ed5a351a 100644
--- a/arch/arm64/kernel/perf_event.c
+++ b/arch/arm64/kernel/perf_event.c
@@ -1044,7 +1044,7 @@ static irqreturn_t armv8pmu_handle_irq(int irq_num, void *dev)
 	 */
 	regs = get_irq_regs();
 
-	cpuc = &__get_cpu_var(cpu_hw_events);
+	cpuc = this_cpu_ptr(&cpu_hw_events);
 	for (idx = 0; idx < cpu_pmu->num_events; ++idx) {
 		struct perf_event *event = cpuc->events[idx];
 		struct hw_perf_event *hwc;
@@ -1257,7 +1257,7 @@ device_initcall(register_pmu_driver);
 
 static struct pmu_hw_events *armpmu_get_cpu_events(void)
 {
-	return &__get_cpu_var(cpu_hw_events);
+	return this_cpu_ptr(&cpu_hw_events);
 }
 
 static void __init cpu_pmu_init(struct arm_pmu *armpmu)
-- 
cgit 


From 6a5014aa037495a14ea083b621ed97fd0c3c7e9e Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 22 Oct 2013 17:53:16 +0100
Subject: ARM: 7863/1: Let arm_add_memory() always use 64-bit arguments

The DTB and/or the kernel command line may pass
64-bit addresses regardless of kernel configuration,
so update arm_add_memory() to take 64-bit arguments
independently of the phys_addr_t size.

This allows non-wrapping handling of high memory
banks such as the second memory bank of APE6EVM
(at 0x2_0000_0000) in case of 32-bit phys_addr_t.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/include/asm/setup.h | 2 +-
 arch/arm/kernel/setup.c      | 6 +++---
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/include/asm/setup.h b/arch/arm/include/asm/setup.h
index c50f05609501..8d6a089dfb76 100644
--- a/arch/arm/include/asm/setup.h
+++ b/arch/arm/include/asm/setup.h
@@ -49,7 +49,7 @@ extern struct meminfo meminfo;
 #define bank_phys_end(bank)	((bank)->start + (bank)->size)
 #define bank_phys_size(bank)	(bank)->size
 
-extern int arm_add_memory(phys_addr_t start, phys_addr_t size);
+extern int arm_add_memory(u64 start, u64 size);
 extern void early_print(const char *str, ...);
 extern void dump_machine_table(void);
 
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index a4852dea088b..5ec4443af08b 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -621,7 +621,7 @@ void __init dump_machine_table(void)
 		/* can't use cpu_relax() here as it may require MMU setup */;
 }
 
-int __init arm_add_memory(phys_addr_t start, phys_addr_t size)
+int __init arm_add_memory(u64 start, u64 size)
 {
 	struct membank *bank = &meminfo.bank[meminfo.nr_banks];
 
@@ -671,8 +671,8 @@ int __init arm_add_memory(phys_addr_t start, phys_addr_t size)
 static int __init early_mem(char *p)
 {
 	static int usermem __initdata = 0;
-	phys_addr_t size;
-	phys_addr_t start;
+	u64 size;
+	u64 start;
 	char *endp;
 
 	/*
-- 
cgit 


From 6d7d5da7d75c6df676c8b72d32b02ff024438f0c Mon Sep 17 00:00:00 2001
From: Magnus Damm <damm@opensource.se>
Date: Tue, 22 Oct 2013 17:59:54 +0100
Subject: ARM: 7864/1: Handle 64-bit memory in case of 32-bit phys_addr_t

Use CONFIG_ARCH_PHYS_ADDR_T_64BIT to determine
if ignoring or truncating of memory banks is
neccessary. This may be needed in the case of
64-bit memory bank addresses but when phys_addr_t
is kept 32-bit.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/setup.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 5ec4443af08b..53c3901f7ee3 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -624,6 +624,7 @@ void __init dump_machine_table(void)
 int __init arm_add_memory(u64 start, u64 size)
 {
 	struct membank *bank = &meminfo.bank[meminfo.nr_banks];
+	u64 aligned_start;
 
 	if (meminfo.nr_banks >= NR_BANKS) {
 		printk(KERN_CRIT "NR_BANKS too low, "
@@ -636,10 +637,16 @@ int __init arm_add_memory(u64 start, u64 size)
 	 * Size is appropriately rounded down, start is rounded up.
 	 */
 	size -= start & ~PAGE_MASK;
-	bank->start = PAGE_ALIGN(start);
+	aligned_start = PAGE_ALIGN(start);
 
-#ifndef CONFIG_ARM_LPAE
-	if (bank->start + size < bank->start) {
+#ifndef CONFIG_ARCH_PHYS_ADDR_T_64BIT
+	if (aligned_start > ULONG_MAX) {
+		printk(KERN_CRIT "Ignoring memory at 0x%08llx outside "
+		       "32-bit physical address space\n", (long long)start);
+		return -EINVAL;
+	}
+
+	if (aligned_start + size > ULONG_MAX) {
 		printk(KERN_CRIT "Truncating memory at 0x%08llx to fit in "
 			"32-bit physical address space\n", (long long)start);
 		/*
@@ -647,10 +654,11 @@ int __init arm_add_memory(u64 start, u64 size)
 		 * 32 bits, we use ULONG_MAX as the upper limit rather than 4GB.
 		 * This means we lose a page after masking.
 		 */
-		size = ULONG_MAX - bank->start;
+		size = ULONG_MAX - aligned_start;
 	}
 #endif
 
+	bank->start = aligned_start;
 	bank->size = size & ~(phys_addr_t)(PAGE_SIZE - 1);
 
 	/*
-- 
cgit 


From 49649cad34c29dc26ed928191425e6677ca07918 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael@free-electrons.com>
Date: Sun, 27 Oct 2013 09:20:47 +0100
Subject: ARM: 7869/1: remove unused XSCALE_PMU Kconfig param

This removes the XSCALE_PMU Kconfig param, which is defined
but no longer used in makefiles and source files.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index fc184bcd7848..df0c609272e5 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1092,11 +1092,6 @@ config IWMMXT
 	  Enable support for iWMMXt context switching at run time if
 	  running on a CPU that supports it.
 
-config XSCALE_PMU
-	bool
-	depends on CPU_XSCALE
-	default y
-
 config MULTI_IRQ_HANDLER
 	bool
 	help
-- 
cgit 


From 1e5660999aa7703654ec345caaf06b83415dbdff Mon Sep 17 00:00:00 2001
From: Dave Martin <dave.martin@linaro.org>
Date: Tue, 1 Oct 2013 19:57:28 +0100
Subject: ARM: 7847/1: mcpm: Factor out logical-to-physical CPU translation

This patch factors the logical-to-physical CPU translation out of
mcpm_boot_secondary(), so that it can be reused elsewhere.

Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/common/mcpm_platsmp.c | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/arch/arm/common/mcpm_platsmp.c b/arch/arm/common/mcpm_platsmp.c
index 1bc34c7567fd..c0c3cd799ccc 100644
--- a/arch/arm/common/mcpm_platsmp.c
+++ b/arch/arm/common/mcpm_platsmp.c
@@ -19,14 +19,23 @@
 #include <asm/smp.h>
 #include <asm/smp_plat.h>
 
+static void cpu_to_pcpu(unsigned int cpu,
+			unsigned int *pcpu, unsigned int *pcluster)
+{
+	unsigned int mpidr;
+
+	mpidr = cpu_logical_map(cpu);
+	*pcpu = MPIDR_AFFINITY_LEVEL(mpidr, 0);
+	*pcluster = MPIDR_AFFINITY_LEVEL(mpidr, 1);
+}
+
 static int mcpm_boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
-	unsigned int mpidr, pcpu, pcluster, ret;
+	unsigned int pcpu, pcluster, ret;
 	extern void secondary_startup(void);
 
-	mpidr = cpu_logical_map(cpu);
-	pcpu = MPIDR_AFFINITY_LEVEL(mpidr, 0);
-	pcluster = MPIDR_AFFINITY_LEVEL(mpidr, 1);
+	cpu_to_pcpu(cpu, &pcpu, &pcluster);
+
 	pr_debug("%s: logical CPU %d is physical CPU %d cluster %d\n",
 		 __func__, cpu, pcpu, pcluster);
 
-- 
cgit 


From 0de0d64675259bf21d06b18985318ffb66a5218f Mon Sep 17 00:00:00 2001
From: Dave Martin <dave.martin@linaro.org>
Date: Tue, 1 Oct 2013 19:58:17 +0100
Subject: ARM: 7848/1: mcpm: Implement cpu_kill() to synchronise on powerdown

CPU hotplug and kexec rely on smp_ops.cpu_kill(), which is supposed
to wait for the CPU to park or power down, and perform the last
rites (such as disabling clocks etc., where the platform doesn't do
this automatically).

kexec in particular is unsafe without performing this
synchronisation to park secondaries.  Without it, the secondaries
might not be parked when kexec trashes the kernel.

There is no generic way to do this synchronisation, so a new mcpm
platform_ops method power_down_finish() is added by this patch.

The new method is mandatory.  A platform which provides no way to
detect when CPUs are parked is likely broken.

Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/common/mcpm_entry.c   | 15 +++++++++++++++
 arch/arm/common/mcpm_platsmp.c | 10 ++++++++++
 arch/arm/include/asm/mcpm.h    | 31 +++++++++++++++++++++++++++++++
 3 files changed, 56 insertions(+)

diff --git a/arch/arm/common/mcpm_entry.c b/arch/arm/common/mcpm_entry.c
index 990250965f2c..6c03d0152e7f 100644
--- a/arch/arm/common/mcpm_entry.c
+++ b/arch/arm/common/mcpm_entry.c
@@ -90,6 +90,21 @@ void mcpm_cpu_power_down(void)
 	BUG();
 }
 
+int mcpm_cpu_power_down_finish(unsigned int cpu, unsigned int cluster)
+{
+	int ret;
+
+	if (WARN_ON_ONCE(!platform_ops || !platform_ops->power_down_finish))
+		return -EUNATCH;
+
+	ret = platform_ops->power_down_finish(cpu, cluster);
+	if (ret)
+		pr_warn("%s: cpu %u, cluster %u failed to power down (%d)\n",
+			__func__, cpu, cluster, ret);
+
+	return ret;
+}
+
 void mcpm_cpu_suspend(u64 expected_residency)
 {
 	phys_reset_t phys_reset;
diff --git a/arch/arm/common/mcpm_platsmp.c b/arch/arm/common/mcpm_platsmp.c
index c0c3cd799ccc..177251a4dd9a 100644
--- a/arch/arm/common/mcpm_platsmp.c
+++ b/arch/arm/common/mcpm_platsmp.c
@@ -56,6 +56,15 @@ static void mcpm_secondary_init(unsigned int cpu)
 
 #ifdef CONFIG_HOTPLUG_CPU
 
+static int mcpm_cpu_kill(unsigned int cpu)
+{
+	unsigned int pcpu, pcluster;
+
+	cpu_to_pcpu(cpu, &pcpu, &pcluster);
+
+	return !mcpm_cpu_power_down_finish(pcpu, pcluster);
+}
+
 static int mcpm_cpu_disable(unsigned int cpu)
 {
 	/*
@@ -82,6 +91,7 @@ static struct smp_operations __initdata mcpm_smp_ops = {
 	.smp_boot_secondary	= mcpm_boot_secondary,
 	.smp_secondary_init	= mcpm_secondary_init,
 #ifdef CONFIG_HOTPLUG_CPU
+	.cpu_kill		= mcpm_cpu_kill,
 	.cpu_disable		= mcpm_cpu_disable,
 	.cpu_die		= mcpm_cpu_die,
 #endif
diff --git a/arch/arm/include/asm/mcpm.h b/arch/arm/include/asm/mcpm.h
index fc82a88f5b69..1cf26010a6f3 100644
--- a/arch/arm/include/asm/mcpm.h
+++ b/arch/arm/include/asm/mcpm.h
@@ -81,9 +81,39 @@ int mcpm_cpu_power_up(unsigned int cpu, unsigned int cluster);
  *
  * This will return if mcpm_platform_register() has not been called
  * previously in which case the caller should take appropriate action.
+ *
+ * On success, the CPU is not guaranteed to be truly halted until
+ * mcpm_cpu_power_down_finish() subsequently returns non-zero for the
+ * specified cpu.  Until then, other CPUs should make sure they do not
+ * trash memory the target CPU might be executing/accessing.
  */
 void mcpm_cpu_power_down(void);
 
+/**
+ * mcpm_cpu_power_down_finish - wait for a specified CPU to halt, and
+ *	make sure it is powered off
+ *
+ * @cpu: CPU number within given cluster
+ * @cluster: cluster number for the CPU
+ *
+ * Call this function to ensure that a pending powerdown has taken
+ * effect and the CPU is safely parked before performing non-mcpm
+ * operations that may affect the CPU (such as kexec trashing the
+ * kernel text).
+ *
+ * It is *not* necessary to call this function if you only need to
+ * serialise a pending powerdown with mcpm_cpu_power_up() or a wakeup
+ * event.
+ *
+ * Do not call this function unless the specified CPU has already
+ * called mcpm_cpu_power_down() or has committed to doing so.
+ *
+ * @return:
+ *	- zero if the CPU is in a safely parked state
+ *	- nonzero otherwise (e.g., timeout)
+ */
+int mcpm_cpu_power_down_finish(unsigned int cpu, unsigned int cluster);
+
 /**
  * mcpm_cpu_suspend - bring the calling CPU in a suspended state
  *
@@ -126,6 +156,7 @@ int mcpm_cpu_powered_up(void);
 struct mcpm_platform_ops {
 	int (*power_up)(unsigned int cpu, unsigned int cluster);
 	void (*power_down)(void);
+	int (*power_down_finish)(unsigned int cpu, unsigned int cluster);
 	void (*suspend)(u64);
 	void (*powered_up)(void);
 };
-- 
cgit 


From c777cdfa4e69548f45078165d17828dd6711120f Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Sat, 21 Sep 2013 06:24:20 +0000
Subject: ixgbevf: implement CONFIG_NET_RX_BUSY_POLL

This patch enables CONFIG_NET_RX_BUSY_POLL support in the VF code. This enables
sockets which have enabled the SO_BUSY_POLL socket option to use the
ndo_busy_poll_recv operation which could result in lower latency, at the cost
of higher CPU utilization, and increased power usage. This support is similar
to how the ixgbe driver works.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf.h      | 109 ++++++++++++++++++++++
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c |  68 ++++++++++++++
 2 files changed, 177 insertions(+)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
index d7837dcc9897..85c7560e237b 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
@@ -38,6 +38,10 @@
 
 #include "vf.h"
 
+#ifdef CONFIG_NET_RX_BUSY_POLL
+#include <net/busy_poll.h>
+#endif
+
 /* wrapper around a pointer to a socket buffer,
  * so a DMA handle can be stored along with the buffer */
 struct ixgbevf_tx_buffer {
@@ -145,7 +149,112 @@ struct ixgbevf_q_vector {
 	struct napi_struct napi;
 	struct ixgbevf_ring_container rx, tx;
 	char name[IFNAMSIZ + 9];
+#ifdef CONFIG_NET_RX_BUSY_POLL
+	unsigned int state;
+#define IXGBEVF_QV_STATE_IDLE		0
+#define IXGBEVF_QV_STATE_NAPI		1    /* NAPI owns this QV */
+#define IXGBEVF_QV_STATE_POLL		2    /* poll owns this QV */
+#define IXGBEVF_QV_STATE_DISABLED	4    /* QV is disabled */
+#define IXGBEVF_QV_OWNED (IXGBEVF_QV_STATE_NAPI | IXGBEVF_QV_STATE_POLL)
+#define IXGBEVF_QV_LOCKED (IXGBEVF_QV_OWNED | IXGBEVF_QV_STATE_DISABLED)
+#define IXGBEVF_QV_STATE_NAPI_YIELD	8    /* NAPI yielded this QV */
+#define IXGBEVF_QV_STATE_POLL_YIELD	16   /* poll yielded this QV */
+#define IXGBEVF_QV_YIELD (IXGBEVF_QV_STATE_NAPI_YIELD | IXGBEVF_QV_STATE_POLL_YIELD)
+#define IXGBEVF_QV_USER_PEND (IXGBEVF_QV_STATE_POLL | IXGBEVF_QV_STATE_POLL_YIELD)
+	spinlock_t lock;
+#endif /* CONFIG_NET_RX_BUSY_POLL */
 };
+#ifdef CONFIG_NET_RX_BUSY_POLL
+static inline void ixgbevf_qv_init_lock(struct ixgbevf_q_vector *q_vector)
+{
+
+	spin_lock_init(&q_vector->lock);
+	q_vector->state = IXGBEVF_QV_STATE_IDLE;
+}
+
+/* called from the device poll routine to get ownership of a q_vector */
+static inline bool ixgbevf_qv_lock_napi(struct ixgbevf_q_vector *q_vector)
+{
+	int rc = true;
+	spin_lock_bh(&q_vector->lock);
+	if (q_vector->state & IXGBEVF_QV_LOCKED) {
+		WARN_ON(q_vector->state & IXGBEVF_QV_STATE_NAPI);
+		q_vector->state |= IXGBEVF_QV_STATE_NAPI_YIELD;
+		rc = false;
+	} else {
+		/* we don't care if someone yielded */
+		q_vector->state = IXGBEVF_QV_STATE_NAPI;
+	}
+	spin_unlock_bh(&q_vector->lock);
+	return rc;
+}
+
+/* returns true is someone tried to get the qv while napi had it */
+static inline bool ixgbevf_qv_unlock_napi(struct ixgbevf_q_vector *q_vector)
+{
+	int rc = false;
+	spin_lock_bh(&q_vector->lock);
+	WARN_ON(q_vector->state & (IXGBEVF_QV_STATE_POLL |
+				   IXGBEVF_QV_STATE_NAPI_YIELD));
+
+	if (q_vector->state & IXGBEVF_QV_STATE_POLL_YIELD)
+		rc = true;
+	/* reset state to idle, unless QV is disabled */
+	q_vector->state &= IXGBEVF_QV_STATE_DISABLED;
+	spin_unlock_bh(&q_vector->lock);
+	return rc;
+}
+
+/* called from ixgbevf_low_latency_poll() */
+static inline bool ixgbevf_qv_lock_poll(struct ixgbevf_q_vector *q_vector)
+{
+	int rc = true;
+	spin_lock_bh(&q_vector->lock);
+	if ((q_vector->state & IXGBEVF_QV_LOCKED)) {
+		q_vector->state |= IXGBEVF_QV_STATE_POLL_YIELD;
+		rc = false;
+	} else {
+		/* preserve yield marks */
+		q_vector->state |= IXGBEVF_QV_STATE_POLL;
+	}
+	spin_unlock_bh(&q_vector->lock);
+	return rc;
+}
+
+/* returns true if someone tried to get the qv while it was locked */
+static inline bool ixgbevf_qv_unlock_poll(struct ixgbevf_q_vector *q_vector)
+{
+	int rc = false;
+	spin_lock_bh(&q_vector->lock);
+	WARN_ON(q_vector->state & (IXGBEVF_QV_STATE_NAPI));
+
+	if (q_vector->state & IXGBEVF_QV_STATE_POLL_YIELD)
+		rc = true;
+	/* reset state to idle, unless QV is disabled */
+	q_vector->state &= IXGBEVF_QV_STATE_DISABLED;
+	spin_unlock_bh(&q_vector->lock);
+	return rc;
+}
+
+/* true if a socket is polling, even if it did not get the lock */
+static inline bool ixgbevf_qv_busy_polling(struct ixgbevf_q_vector *q_vector)
+{
+	WARN_ON(!(q_vector->state & IXGBEVF_QV_OWNED));
+	return q_vector->state & IXGBEVF_QV_USER_PEND;
+}
+
+/* false if QV is currently owned */
+static inline bool ixgbevf_qv_disable(struct ixgbevf_q_vector *q_vector)
+{
+	int rc = true;
+	spin_lock_bh(&q_vector->lock);
+	if (q_vector->state & IXGBEVF_QV_OWNED)
+		rc = false;
+	spin_unlock_bh(&q_vector->lock);
+	return rc;
+}
+
+#endif /* CONFIG_NET_RX_BUSY_POLL */
 
 /*
  * microsecond values for various ITR rates shifted by 2 to fit itr register
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 06e29bd73777..bc03a2ec5c0a 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -310,6 +310,16 @@ static void ixgbevf_rx_skb(struct ixgbevf_q_vector *q_vector,
 			   struct sk_buff *skb, u8 status,
 			   union ixgbe_adv_rx_desc *rx_desc)
 {
+#ifdef CONFIG_NET_RX_BUSY_POLL
+	skb_mark_napi_id(skb, &q_vector->napi);
+
+	if (ixgbevf_qv_busy_polling(q_vector)) {
+		netif_receive_skb(skb);
+		/* exit early if we busy polled */
+		return;
+	}
+#endif /* CONFIG_NET_RX_BUSY_POLL */
+
 	ixgbevf_receive_skb(q_vector, skb, status, rx_desc);
 }
 
@@ -563,6 +573,11 @@ static int ixgbevf_poll(struct napi_struct *napi, int budget)
 	ixgbevf_for_each_ring(ring, q_vector->tx)
 		clean_complete &= ixgbevf_clean_tx_irq(q_vector, ring);
 
+#ifdef CONFIG_NET_RX_BUSY_POLL
+	if (!ixgbevf_qv_lock_napi(q_vector))
+		return budget;
+#endif
+
 	/* attempt to distribute budget to each queue fairly, but don't allow
 	 * the budget to go below 1 because we'll exit polling */
 	if (q_vector->rx.count > 1)
@@ -577,6 +592,10 @@ static int ixgbevf_poll(struct napi_struct *napi, int budget)
 				   < per_ring_budget);
 	adapter->flags &= ~IXGBE_FLAG_IN_NETPOLL;
 
+#ifdef CONFIG_NET_RX_BUSY_POLL
+	ixgbevf_qv_unlock_napi(q_vector);
+#endif
+
 	/* If all work not completed, return budget and keep polling */
 	if (!clean_complete)
 		return budget;
@@ -611,6 +630,34 @@ void ixgbevf_write_eitr(struct ixgbevf_q_vector *q_vector)
 	IXGBE_WRITE_REG(hw, IXGBE_VTEITR(v_idx), itr_reg);
 }
 
+#ifdef CONFIG_NET_RX_BUSY_POLL
+/* must be called with local_bh_disable()d */
+static int ixgbevf_busy_poll_recv(struct napi_struct *napi)
+{
+	struct ixgbevf_q_vector *q_vector =
+			container_of(napi, struct ixgbevf_q_vector, napi);
+	struct ixgbevf_adapter *adapter = q_vector->adapter;
+	struct ixgbevf_ring  *ring;
+	int found = 0;
+
+	if (test_bit(__IXGBEVF_DOWN, &adapter->state))
+		return LL_FLUSH_FAILED;
+
+	if (!ixgbevf_qv_lock_poll(q_vector))
+		return LL_FLUSH_BUSY;
+
+	ixgbevf_for_each_ring(ring, q_vector->rx) {
+		found = ixgbevf_clean_rx_irq(q_vector, ring, 4);
+		if (found)
+			break;
+	}
+
+	ixgbevf_qv_unlock_poll(q_vector);
+
+	return found;
+}
+#endif /* CONFIG_NET_RX_BUSY_POLL */
+
 /**
  * ixgbevf_configure_msix - Configure MSI-X hardware
  * @adapter: board private structure
@@ -1297,6 +1344,9 @@ static void ixgbevf_napi_enable_all(struct ixgbevf_adapter *adapter)
 
 	for (q_idx = 0; q_idx < q_vectors; q_idx++) {
 		q_vector = adapter->q_vector[q_idx];
+#ifdef CONFIG_NET_RX_BUSY_POLL
+		ixgbevf_qv_init_lock(adapter->q_vector[q_idx]);
+#endif
 		napi_enable(&q_vector->napi);
 	}
 }
@@ -1310,6 +1360,12 @@ static void ixgbevf_napi_disable_all(struct ixgbevf_adapter *adapter)
 	for (q_idx = 0; q_idx < q_vectors; q_idx++) {
 		q_vector = adapter->q_vector[q_idx];
 		napi_disable(&q_vector->napi);
+#ifdef CONFIG_NET_RX_BUSY_POLL
+		while (!ixgbevf_qv_disable(adapter->q_vector[q_idx])) {
+			pr_info("QV %d locked\n", q_idx);
+			usleep_range(1000, 20000);
+		}
+#endif /* CONFIG_NET_RX_BUSY_POLL */
 	}
 }
 
@@ -1960,6 +2016,9 @@ static int ixgbevf_alloc_q_vectors(struct ixgbevf_adapter *adapter)
 		q_vector->v_idx = q_idx;
 		netif_napi_add(adapter->netdev, &q_vector->napi,
 			       ixgbevf_poll, 64);
+#ifdef CONFIG_NET_RX_BUSY_POLL
+		napi_hash_add(&q_vector->napi);
+#endif
 		adapter->q_vector[q_idx] = q_vector;
 	}
 
@@ -1969,6 +2028,9 @@ err_out:
 	while (q_idx) {
 		q_idx--;
 		q_vector = adapter->q_vector[q_idx];
+#ifdef CONFIG_NET_RX_BUSY_POLL
+		napi_hash_del(&q_vector->napi);
+#endif
 		netif_napi_del(&q_vector->napi);
 		kfree(q_vector);
 		adapter->q_vector[q_idx] = NULL;
@@ -1992,6 +2054,9 @@ static void ixgbevf_free_q_vectors(struct ixgbevf_adapter *adapter)
 		struct ixgbevf_q_vector *q_vector = adapter->q_vector[q_idx];
 
 		adapter->q_vector[q_idx] = NULL;
+#ifdef CONFIG_NET_RX_BUSY_POLL
+		napi_hash_del(&q_vector->napi);
+#endif
 		netif_napi_del(&q_vector->napi);
 		kfree(q_vector);
 	}
@@ -3323,6 +3388,9 @@ static const struct net_device_ops ixgbevf_netdev_ops = {
 	.ndo_tx_timeout		= ixgbevf_tx_timeout,
 	.ndo_vlan_rx_add_vid	= ixgbevf_vlan_rx_add_vid,
 	.ndo_vlan_rx_kill_vid	= ixgbevf_vlan_rx_kill_vid,
+#ifdef CONFIG_NET_RX_BUSY_POLL
+	.ndo_busy_poll		= ixgbevf_busy_poll_recv,
+#endif
 };
 
 static void ixgbevf_assign_netdev_ops(struct net_device *dev)
-- 
cgit 


From 3b5dca262f52793fdff4d0d970e8f1cec3f7f2ef Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Sat, 21 Sep 2013 06:24:25 +0000
Subject: ixgbevf: add BP_EXTENDED_STATS for CONFIG_NET_RX_BUSY_POLL

This patch adds the extended statistics similar to the ixgbe driver. These
statistics keep track of how often the busy polling yields, as well as how many
packets are cleaned or missed by the polling routine.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbevf/ethtool.c      | 32 +++++++++++++++++++++++
 drivers/net/ethernet/intel/ixgbevf/ixgbevf.h      | 22 ++++++++++++++++
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c |  6 +++++
 3 files changed, 60 insertions(+)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ethtool.c b/drivers/net/ethernet/intel/ixgbevf/ethtool.c
index 21adb1bc1706..44f7c42d8f58 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ethtool.c
@@ -74,6 +74,14 @@ static const struct ixgbe_stats ixgbe_gstrings_stats[] = {
 						zero_base)},
 	{"tx_csum_offload_ctxt", IXGBEVF_STAT(hw_csum_tx_good, zero_base,
 					      zero_base)},
+#ifdef BP_EXTENDED_STATS
+	{"rx_bp_poll_yield", IXGBEVF_STAT(bp_rx_yields, zero_base, zero_base)},
+	{"rx_bp_cleaned", IXGBEVF_STAT(bp_rx_cleaned, zero_base, zero_base)},
+	{"rx_bp_misses", IXGBEVF_STAT(bp_rx_missed, zero_base, zero_base)},
+	{"tx_bp_napi_yield", IXGBEVF_STAT(bp_tx_yields, zero_base, zero_base)},
+	{"tx_bp_cleaned", IXGBEVF_STAT(bp_tx_cleaned, zero_base, zero_base)},
+	{"tx_bp_misses", IXGBEVF_STAT(bp_tx_missed, zero_base, zero_base)},
+#endif
 };
 
 #define IXGBE_QUEUE_STATS_LEN 0
@@ -391,6 +399,30 @@ static void ixgbevf_get_ethtool_stats(struct net_device *netdev,
 {
 	struct ixgbevf_adapter *adapter = netdev_priv(netdev);
 	int i;
+#ifdef BP_EXTENDED_STATS
+	u64 rx_yields = 0, rx_cleaned = 0, rx_missed = 0,
+	    tx_yields = 0, tx_cleaned = 0, tx_missed = 0;
+
+	for (i = 0; i < adapter->num_rx_queues; i++) {
+		rx_yields += adapter->rx_ring[i].bp_yields;
+		rx_cleaned += adapter->rx_ring[i].bp_cleaned;
+		rx_yields += adapter->rx_ring[i].bp_yields;
+	}
+
+	for (i = 0; i < adapter->num_tx_queues; i++) {
+		tx_yields += adapter->tx_ring[i].bp_yields;
+		tx_cleaned += adapter->tx_ring[i].bp_cleaned;
+		tx_yields += adapter->tx_ring[i].bp_yields;
+	}
+
+	adapter->bp_rx_yields = rx_yields;
+	adapter->bp_rx_cleaned = rx_cleaned;
+	adapter->bp_rx_missed = rx_missed;
+
+	adapter->bp_tx_yields = tx_yields;
+	adapter->bp_tx_cleaned = tx_cleaned;
+	adapter->bp_tx_missed = tx_missed;
+#endif
 
 	ixgbevf_update_stats(adapter);
 	for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
index 85c7560e237b..78e4c510bd75 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
@@ -40,6 +40,7 @@
 
 #ifdef CONFIG_NET_RX_BUSY_POLL
 #include <net/busy_poll.h>
+#define BP_EXTENDED_STATS
 #endif
 
 /* wrapper around a pointer to a socket buffer,
@@ -80,6 +81,11 @@ struct ixgbevf_ring {
 	struct u64_stats_sync	syncp;
 	u64 hw_csum_rx_error;
 	u64 hw_csum_rx_good;
+#ifdef BP_EXTENDED_STATS
+	u64 bp_yields;
+	u64 bp_misses;
+	u64 bp_cleaned;
+#endif
 
 	u16 head;
 	u16 tail;
@@ -181,6 +187,9 @@ static inline bool ixgbevf_qv_lock_napi(struct ixgbevf_q_vector *q_vector)
 		WARN_ON(q_vector->state & IXGBEVF_QV_STATE_NAPI);
 		q_vector->state |= IXGBEVF_QV_STATE_NAPI_YIELD;
 		rc = false;
+#ifdef BP_EXTENDED_STATS
+		q_vector->tx.ring->bp_yields++;
+#endif
 	} else {
 		/* we don't care if someone yielded */
 		q_vector->state = IXGBEVF_QV_STATE_NAPI;
@@ -213,6 +222,9 @@ static inline bool ixgbevf_qv_lock_poll(struct ixgbevf_q_vector *q_vector)
 	if ((q_vector->state & IXGBEVF_QV_LOCKED)) {
 		q_vector->state |= IXGBEVF_QV_STATE_POLL_YIELD;
 		rc = false;
+#ifdef BP_EXTENDED_STATS
+		q_vector->rx.ring->bp_yields++;
+#endif
 	} else {
 		/* preserve yield marks */
 		q_vector->state |= IXGBEVF_QV_STATE_POLL;
@@ -358,6 +370,16 @@ struct ixgbevf_adapter {
 	unsigned int tx_ring_count;
 	unsigned int rx_ring_count;
 
+#ifdef BP_EXTENDED_STATS
+	u64 bp_rx_yields;
+	u64 bp_rx_cleaned;
+	u64 bp_rx_missed;
+
+	u64 bp_tx_yields;
+	u64 bp_tx_cleaned;
+	u64 bp_tx_missed;
+#endif
+
 	u32 link_speed;
 	bool link_up;
 
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index bc03a2ec5c0a..b16b694951b8 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -648,6 +648,12 @@ static int ixgbevf_busy_poll_recv(struct napi_struct *napi)
 
 	ixgbevf_for_each_ring(ring, q_vector->rx) {
 		found = ixgbevf_clean_rx_irq(q_vector, ring, 4);
+#ifdef BP_EXTENDED_STATS
+		if (found)
+			ring->bp_cleaned += found;
+		else
+			ring->bp_misses++;
+#endif
 		if (found)
 			break;
 	}
-- 
cgit 


From 44bd741e10a5bc7d7dd14a79dd58f403819f43bd Mon Sep 17 00:00:00 2001
From: Don Skidmore <donald.c.skidmore@intel.com>
Date: Wed, 25 Sep 2013 08:03:09 +0000
Subject: ixgbevf: Add zero_base handler to network statistics

This patch removes the need to keep a zero_base variable in the adapter
structure. Now we just use two different macros to set the non-zero and
zero base. This adds to readability and shortens some of the structure
initialization under 80 columns. The gathering of status for ethtool was
slightly modified to again better fit into 80 columns and become a bit
more readable.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbevf/ethtool.c | 78 ++++++++++++++++------------
 drivers/net/ethernet/intel/ixgbevf/ixgbevf.h |  1 -
 2 files changed, 45 insertions(+), 34 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ethtool.c b/drivers/net/ethernet/intel/ixgbevf/ethtool.c
index 44f7c42d8f58..54d9acef9c4e 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ethtool.c
@@ -45,16 +45,27 @@
 
 struct ixgbe_stats {
 	char stat_string[ETH_GSTRING_LEN];
-	int sizeof_stat;
-	int stat_offset;
-	int base_stat_offset;
-	int saved_reset_offset;
+	struct {
+		int sizeof_stat;
+		int stat_offset;
+		int base_stat_offset;
+		int saved_reset_offset;
+	};
 };
 
-#define IXGBEVF_STAT(m, b, r)  sizeof(((struct ixgbevf_adapter *)0)->m), \
-			    offsetof(struct ixgbevf_adapter, m),         \
-			    offsetof(struct ixgbevf_adapter, b),         \
-			    offsetof(struct ixgbevf_adapter, r)
+#define IXGBEVF_STAT(m, b, r) { \
+	.sizeof_stat = FIELD_SIZEOF(struct ixgbevf_adapter, m), \
+	.stat_offset = offsetof(struct ixgbevf_adapter, m), \
+	.base_stat_offset = offsetof(struct ixgbevf_adapter, b), \
+	.saved_reset_offset = offsetof(struct ixgbevf_adapter, r) \
+}
+
+#define IXGBEVF_ZSTAT(m) { \
+	.sizeof_stat = FIELD_SIZEOF(struct ixgbevf_adapter, m), \
+	.stat_offset = offsetof(struct ixgbevf_adapter, m), \
+	.base_stat_offset = -1, \
+	.saved_reset_offset = -1 \
+}
 
 static const struct ixgbe_stats ixgbe_gstrings_stats[] = {
 	{"rx_packets", IXGBEVF_STAT(stats.vfgprc, stats.base_vfgprc,
@@ -65,22 +76,19 @@ static const struct ixgbe_stats ixgbe_gstrings_stats[] = {
 				  stats.saved_reset_vfgorc)},
 	{"tx_bytes", IXGBEVF_STAT(stats.vfgotc, stats.base_vfgotc,
 				  stats.saved_reset_vfgotc)},
-	{"tx_busy", IXGBEVF_STAT(tx_busy, zero_base, zero_base)},
+	{"tx_busy", IXGBEVF_ZSTAT(tx_busy)},
 	{"multicast", IXGBEVF_STAT(stats.vfmprc, stats.base_vfmprc,
 				   stats.saved_reset_vfmprc)},
-	{"rx_csum_offload_good", IXGBEVF_STAT(hw_csum_rx_good, zero_base,
-					      zero_base)},
-	{"rx_csum_offload_errors", IXGBEVF_STAT(hw_csum_rx_error, zero_base,
-						zero_base)},
-	{"tx_csum_offload_ctxt", IXGBEVF_STAT(hw_csum_tx_good, zero_base,
-					      zero_base)},
+	{"rx_csum_offload_good", IXGBEVF_ZSTAT(hw_csum_rx_good)},
+	{"rx_csum_offload_errors", IXGBEVF_ZSTAT(hw_csum_rx_error)},
+	{"tx_csum_offload_ctxt", IXGBEVF_ZSTAT(hw_csum_tx_good)},
 #ifdef BP_EXTENDED_STATS
-	{"rx_bp_poll_yield", IXGBEVF_STAT(bp_rx_yields, zero_base, zero_base)},
-	{"rx_bp_cleaned", IXGBEVF_STAT(bp_rx_cleaned, zero_base, zero_base)},
-	{"rx_bp_misses", IXGBEVF_STAT(bp_rx_missed, zero_base, zero_base)},
-	{"tx_bp_napi_yield", IXGBEVF_STAT(bp_tx_yields, zero_base, zero_base)},
-	{"tx_bp_cleaned", IXGBEVF_STAT(bp_tx_cleaned, zero_base, zero_base)},
-	{"tx_bp_misses", IXGBEVF_STAT(bp_tx_missed, zero_base, zero_base)},
+	{"rx_bp_poll_yield", IXGBEVF_ZSTAT(bp_rx_yields)},
+	{"rx_bp_cleaned", IXGBEVF_ZSTAT(bp_rx_cleaned)},
+	{"rx_bp_misses", IXGBEVF_ZSTAT(bp_rx_missed)},
+	{"tx_bp_napi_yield", IXGBEVF_ZSTAT(bp_tx_yields)},
+	{"tx_bp_cleaned", IXGBEVF_ZSTAT(bp_tx_cleaned)},
+	{"tx_bp_misses", IXGBEVF_ZSTAT(bp_tx_missed)},
 #endif
 };
 
@@ -398,6 +406,7 @@ static void ixgbevf_get_ethtool_stats(struct net_device *netdev,
 				      struct ethtool_stats *stats, u64 *data)
 {
 	struct ixgbevf_adapter *adapter = netdev_priv(netdev);
+	char *base = (char *) adapter;
 	int i;
 #ifdef BP_EXTENDED_STATS
 	u64 rx_yields = 0, rx_cleaned = 0, rx_missed = 0,
@@ -426,18 +435,21 @@ static void ixgbevf_get_ethtool_stats(struct net_device *netdev,
 
 	ixgbevf_update_stats(adapter);
 	for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) {
-		char *p = (char *)adapter +
-			ixgbe_gstrings_stats[i].stat_offset;
-		char *b = (char *)adapter +
-			ixgbe_gstrings_stats[i].base_stat_offset;
-		char *r = (char *)adapter +
-			ixgbe_gstrings_stats[i].saved_reset_offset;
-		data[i] = ((ixgbe_gstrings_stats[i].sizeof_stat ==
-			    sizeof(u64)) ? *(u64 *)p : *(u32 *)p) -
-			  ((ixgbe_gstrings_stats[i].sizeof_stat ==
-			    sizeof(u64)) ? *(u64 *)b : *(u32 *)b) +
-			  ((ixgbe_gstrings_stats[i].sizeof_stat ==
-			    sizeof(u64)) ? *(u64 *)r : *(u32 *)r);
+		char *p = base + ixgbe_gstrings_stats[i].stat_offset;
+		char *b = base + ixgbe_gstrings_stats[i].base_stat_offset;
+		char *r = base + ixgbe_gstrings_stats[i].saved_reset_offset;
+
+		if (ixgbe_gstrings_stats[i].sizeof_stat == sizeof(u64)) {
+			if (ixgbe_gstrings_stats[i].base_stat_offset >= 0)
+				data[i] = *(u64 *)p - *(u64 *)b + *(u64 *)r;
+			else
+				data[i] = *(u64 *)p;
+		} else {
+			if (ixgbe_gstrings_stats[i].base_stat_offset >= 0)
+				data[i] = *(u32 *)p - *(u32 *)b + *(u32 *)r;
+			else
+				data[i] = *(u32 *)p;
+		}
 	}
 }
 
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
index 78e4c510bd75..acf38067a700 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
@@ -361,7 +361,6 @@ struct ixgbevf_adapter {
 	struct ixgbe_hw hw;
 	u16 msg_enable;
 	struct ixgbevf_hw_stats stats;
-	u64 zero_base;
 	/* Interrupt Throttle Rate */
 	u32 eitr_param;
 
-- 
cgit 


From 477fed70295dd7597b258cd509abac56c2081527 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 2 Oct 2013 14:41:24 +0300
Subject: OMAPDSS: DSI: fix perf measuring ifdefs

DSI performance measuring code is meant to be explicitly enabled at
compile time. At some point in time the perf code was changed to be
enabled if DEBUG is defined. This is not right, so this patch fixes it.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/dss/dsi.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index a598b5812285..64b1a81b3afc 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -312,7 +312,7 @@ struct dsi_data {
 	struct dsi_isr_tables isr_tables_copy;
 
 	int update_channel;
-#ifdef DEBUG
+#ifdef DSI_PERF_MEASURE
 	unsigned update_bytes;
 #endif
 
@@ -334,7 +334,7 @@ struct dsi_data {
 
 	u32		errors;
 	spinlock_t	errors_lock;
-#ifdef DEBUG
+#ifdef DSI_PERF_MEASURE
 	ktime_t perf_setup_time;
 	ktime_t perf_start_time;
 #endif
@@ -373,7 +373,7 @@ struct dsi_packet_sent_handler_data {
 	struct completion *completion;
 };
 
-#ifdef DEBUG
+#ifdef DSI_PERF_MEASURE
 static bool dsi_perf;
 module_param(dsi_perf, bool, 0644);
 #endif
@@ -497,7 +497,7 @@ u8 dsi_get_pixel_size(enum omap_dss_dsi_pixel_format fmt)
 	}
 }
 
-#ifdef DEBUG
+#ifdef DSI_PERF_MEASURE
 static void dsi_perf_mark_setup(struct platform_device *dsidev)
 {
 	struct dsi_data *dsi = dsi_get_dsidrv_data(dsidev);
@@ -4277,7 +4277,7 @@ static int dsi_update(struct omap_dss_device *dssdev, int channel,
 	dw = dsi->timings.x_res;
 	dh = dsi->timings.y_res;
 
-#ifdef DEBUG
+#ifdef DSI_PERF_MEASURE
 	dsi->update_bytes = dw * dh *
 		dsi_get_pixel_size(dsi->pix_fmt) / 8;
 #endif
-- 
cgit 


From ed87ac09d89129fa4d1f0a10d640fb6dabb46fcd Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Tue, 24 Sep 2013 05:17:25 +0000
Subject: i40e: fix error return code in i40e_probe()

Fix to return -ENOMEM in the memory alloc error handling
case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 41a79df373d5..be15938ba213 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -7204,8 +7204,10 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	 */
 	len = sizeof(struct i40e_vsi *) * pf->hw.func_caps.num_vsis;
 	pf->vsi = kzalloc(len, GFP_KERNEL);
-	if (!pf->vsi)
+	if (!pf->vsi) {
+		err = -ENOMEM;
 		goto err_switch_setup;
+	}
 
 	err = i40e_setup_pf_switch(pf);
 	if (err) {
-- 
cgit 


From cc9fd77c08940c869cdfa38442f32458c5be900c Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 18 Oct 2013 10:46:33 +0300
Subject: OMAPDSS: connector-dvi: fix releasing i2c_adapter

i2c adapter is not released correctly on error paths. Fix this.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/displays-new/connector-dvi.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/video/omap2/displays-new/connector-dvi.c b/drivers/video/omap2/displays-new/connector-dvi.c
index bc5f8ceda371..5641a23b78d1 100644
--- a/drivers/video/omap2/displays-new/connector-dvi.c
+++ b/drivers/video/omap2/displays-new/connector-dvi.c
@@ -262,6 +262,9 @@ static int dvic_probe_pdata(struct platform_device *pdev)
 
 	in = omap_dss_find_output(pdata->source);
 	if (in == NULL) {
+		if (ddata->i2c_adapter)
+			i2c_put_adapter(ddata->i2c_adapter);
+
 		dev_err(&pdev->dev, "Failed to find video source\n");
 		return -ENODEV;
 	}
@@ -313,6 +316,10 @@ static int dvic_probe(struct platform_device *pdev)
 
 err_reg:
 	omap_dss_put_device(ddata->in);
+
+	if (ddata->i2c_adapter)
+		i2c_put_adapter(ddata->i2c_adapter);
+
 	return r;
 }
 
-- 
cgit 


From d954777324ffcba0b2f8119c102237426c654eeb Mon Sep 17 00:00:00 2001
From: Holger Eitzenberger <holger@eitzenberger.org>
Date: Mon, 28 Oct 2013 14:42:33 +0100
Subject: netfilter: xt_NFQUEUE: fix --queue-bypass regression

V3 of the NFQUEUE target ignores the --queue-bypass flag,
causing packets to be dropped when the userspace listener
isn't running.

Regression is in since 8746ddcf12bb26 ("netfilter: xt_NFQUEUE:
introduce CPU fanout").

Reported-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/xt_NFQUEUE.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/net/netfilter/xt_NFQUEUE.c b/net/netfilter/xt_NFQUEUE.c
index 1e2fae32f81b..ed00fef58996 100644
--- a/net/netfilter/xt_NFQUEUE.c
+++ b/net/netfilter/xt_NFQUEUE.c
@@ -147,6 +147,7 @@ nfqueue_tg_v3(struct sk_buff *skb, const struct xt_action_param *par)
 {
 	const struct xt_NFQ_info_v3 *info = par->targinfo;
 	u32 queue = info->queuenum;
+	int ret;
 
 	if (info->queues_total > 1) {
 		if (info->flags & NFQ_FLAG_CPU_FANOUT) {
@@ -157,7 +158,11 @@ nfqueue_tg_v3(struct sk_buff *skb, const struct xt_action_param *par)
 			queue = nfqueue_hash(skb, par);
 	}
 
-	return NF_QUEUE_NR(queue);
+	ret = NF_QUEUE_NR(queue);
+	if (info->flags & NFQ_FLAG_BYPASS)
+		ret |= NF_VERDICT_FLAG_QUEUE_BYPASS;
+
+	return ret;
 }
 
 static struct xt_target nfqueue_tg_reg[] __read_mostly = {
-- 
cgit 


From 5a3126d4fe7c311fe12f98fef0470f6cb582d1ef Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 7 Oct 2013 17:12:48 +0200
Subject: perf: Fix the perf context switch optimization

Currently we only optimize the context switch between two
contexts that have the same parent; this forgoes the
optimization between parent and child context, even though these
contexts could be equivalent too.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Shishkin, Alexander <alexander.shishkin@intel.com>
Link: http://lkml.kernel.org/r/20131007164257.GH3081@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/events/core.c | 64 +++++++++++++++++++++++++++++++++++++---------------
 1 file changed, 46 insertions(+), 18 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 85a8bbde6481..17b3c6cf1606 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -899,6 +899,7 @@ static void unclone_ctx(struct perf_event_context *ctx)
 		put_ctx(ctx->parent_ctx);
 		ctx->parent_ctx = NULL;
 	}
+	ctx->generation++;
 }
 
 static u32 perf_event_pid(struct perf_event *event, struct task_struct *p)
@@ -1136,6 +1137,8 @@ list_add_event(struct perf_event *event, struct perf_event_context *ctx)
 	ctx->nr_events++;
 	if (event->attr.inherit_stat)
 		ctx->nr_stat++;
+
+	ctx->generation++;
 }
 
 /*
@@ -1313,6 +1316,8 @@ list_del_event(struct perf_event *event, struct perf_event_context *ctx)
 	 */
 	if (event->state > PERF_EVENT_STATE_OFF)
 		event->state = PERF_EVENT_STATE_OFF;
+
+	ctx->generation++;
 }
 
 static void perf_group_detach(struct perf_event *event)
@@ -2149,22 +2154,38 @@ static void ctx_sched_out(struct perf_event_context *ctx,
 }
 
 /*
- * Test whether two contexts are equivalent, i.e. whether they
- * have both been cloned from the same version of the same context
- * and they both have the same number of enabled events.
- * If the number of enabled events is the same, then the set
- * of enabled events should be the same, because these are both
- * inherited contexts, therefore we can't access individual events
- * in them directly with an fd; we can only enable/disable all
- * events via prctl, or enable/disable all events in a family
- * via ioctl, which will have the same effect on both contexts.
+ * Test whether two contexts are equivalent, i.e. whether they have both been
+ * cloned from the same version of the same context.
+ *
+ * Equivalence is measured using a generation number in the context that is
+ * incremented on each modification to it; see unclone_ctx(), list_add_event()
+ * and list_del_event().
  */
 static int context_equiv(struct perf_event_context *ctx1,
 			 struct perf_event_context *ctx2)
 {
-	return ctx1->parent_ctx && ctx1->parent_ctx == ctx2->parent_ctx
-		&& ctx1->parent_gen == ctx2->parent_gen
-		&& !ctx1->pin_count && !ctx2->pin_count;
+	/* Pinning disables the swap optimization */
+	if (ctx1->pin_count || ctx2->pin_count)
+		return 0;
+
+	/* If ctx1 is the parent of ctx2 */
+	if (ctx1 == ctx2->parent_ctx && ctx1->generation == ctx2->parent_gen)
+		return 1;
+
+	/* If ctx2 is the parent of ctx1 */
+	if (ctx1->parent_ctx == ctx2 && ctx1->parent_gen == ctx2->generation)
+		return 1;
+
+	/*
+	 * If ctx1 and ctx2 have the same parent; we flatten the parent
+	 * hierarchy, see perf_event_init_context().
+	 */
+	if (ctx1->parent_ctx && ctx1->parent_ctx == ctx2->parent_ctx &&
+			ctx1->parent_gen == ctx2->parent_gen)
+		return 1;
+
+	/* Unmatched */
+	return 0;
 }
 
 static void __perf_event_sync_stat(struct perf_event *event,
@@ -2247,7 +2268,7 @@ static void perf_event_context_sched_out(struct task_struct *task, int ctxn,
 {
 	struct perf_event_context *ctx = task->perf_event_ctxp[ctxn];
 	struct perf_event_context *next_ctx;
-	struct perf_event_context *parent;
+	struct perf_event_context *parent, *next_parent;
 	struct perf_cpu_context *cpuctx;
 	int do_switch = 1;
 
@@ -2259,10 +2280,18 @@ static void perf_event_context_sched_out(struct task_struct *task, int ctxn,
 		return;
 
 	rcu_read_lock();
-	parent = rcu_dereference(ctx->parent_ctx);
 	next_ctx = next->perf_event_ctxp[ctxn];
-	if (parent && next_ctx &&
-	    rcu_dereference(next_ctx->parent_ctx) == parent) {
+	if (!next_ctx)
+		goto unlock;
+
+	parent = rcu_dereference(ctx->parent_ctx);
+	next_parent = rcu_dereference(next_ctx->parent_ctx);
+
+	/* If neither context have a parent context; they cannot be clones. */
+	if (!parent && !next_parent)
+		goto unlock;
+
+	if (next_parent == ctx || next_ctx == parent || next_parent == parent) {
 		/*
 		 * Looks like the two contexts are clones, so we might be
 		 * able to optimize the context switch.  We lock both
@@ -2290,6 +2319,7 @@ static void perf_event_context_sched_out(struct task_struct *task, int ctxn,
 		raw_spin_unlock(&next_ctx->lock);
 		raw_spin_unlock(&ctx->lock);
 	}
+unlock:
 	rcu_read_unlock();
 
 	if (do_switch) {
@@ -7136,7 +7166,6 @@ SYSCALL_DEFINE5(perf_event_open,
 	}
 
 	perf_install_in_context(ctx, event, event->cpu);
-	++ctx->generation;
 	perf_unpin_context(ctx);
 	mutex_unlock(&ctx->mutex);
 
@@ -7219,7 +7248,6 @@ perf_event_create_kernel_counter(struct perf_event_attr *attr, int cpu,
 	WARN_ON_ONCE(ctx->parent_ctx);
 	mutex_lock(&ctx->mutex);
 	perf_install_in_context(ctx, event, cpu);
-	++ctx->generation;
 	perf_unpin_context(ctx);
 	mutex_unlock(&ctx->mutex);
 
-- 
cgit 


From e8e626ad0ca88cc3278279a43f1cef55badf3e46 Mon Sep 17 00:00:00 2001
From: Alexander Bondar <alexander.bondar@intel.com>
Date: Wed, 16 Oct 2013 00:21:34 +0200
Subject: iwlwifi: mvm: update UAPSD support TLV bits

Change old UAPSD bit to PM_CMD_SUPPORT, and add a new bit to indicate
real UAPSD support.
Don't use UAPSD when the firmware doesn't support it.

Signed-off-by: David Spinadel <david.spinadel@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-fw.h       |  3 ++-
 drivers/net/wireless/iwlwifi/mvm/mac80211.c | 14 +++++++++-----
 drivers/net/wireless/iwlwifi/mvm/ops.c      |  2 +-
 3 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-fw.h b/drivers/net/wireless/iwlwifi/iwl-fw.h
index 87b66a821ec8..75db087120c3 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fw.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw.h
@@ -100,7 +100,7 @@ enum iwl_ucode_tlv_flag {
 	IWL_UCODE_TLV_FLAGS_P2P			= BIT(3),
 	IWL_UCODE_TLV_FLAGS_DW_BC_TABLE		= BIT(4),
 	IWL_UCODE_TLV_FLAGS_NEWBT_COEX		= BIT(5),
-	IWL_UCODE_TLV_FLAGS_UAPSD		= BIT(6),
+	IWL_UCODE_TLV_FLAGS_PM_CMD_SUPPORT	= BIT(6),
 	IWL_UCODE_TLV_FLAGS_SHORT_BL		= BIT(7),
 	IWL_UCODE_TLV_FLAGS_RX_ENERGY_API	= BIT(8),
 	IWL_UCODE_TLV_FLAGS_TIME_EVENT_API_V2	= BIT(9),
@@ -113,6 +113,7 @@ enum iwl_ucode_tlv_flag {
 	IWL_UCODE_TLV_FLAGS_SCHED_SCAN		= BIT(17),
 	IWL_UCODE_TLV_FLAGS_STA_KEY_CMD		= BIT(19),
 	IWL_UCODE_TLV_FLAGS_DEVICE_PS_CMD	= BIT(20),
+	IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT	= BIT(24),
 };
 
 /* The default calibrate table size if not specified by firmware file */
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
index f40685c3764e..74bc2c8af06d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac80211.c
@@ -164,8 +164,7 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 		    IEEE80211_HW_TIMING_BEACON_ONLY |
 		    IEEE80211_HW_CONNECTION_MONITOR |
 		    IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
-		    IEEE80211_HW_SUPPORTS_STATIC_SMPS |
-		    IEEE80211_HW_SUPPORTS_UAPSD;
+		    IEEE80211_HW_SUPPORTS_STATIC_SMPS;
 
 	hw->queues = mvm->first_agg_queue;
 	hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
@@ -180,6 +179,12 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 	    !iwlwifi_mod_params.sw_crypto)
 		hw->flags |= IEEE80211_HW_MFP_CAPABLE;
 
+	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT) {
+		hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD;
+		hw->uapsd_queues = IWL_UAPSD_AC_INFO;
+		hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
+	}
+
 	hw->sta_data_size = sizeof(struct iwl_mvm_sta);
 	hw->vif_data_size = sizeof(struct iwl_mvm_vif);
 	hw->chanctx_data_size = sizeof(u16);
@@ -204,8 +209,6 @@ int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
 
 	hw->wiphy->max_remain_on_channel_duration = 10000;
 	hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
-	hw->uapsd_queues = IWL_UAPSD_AC_INFO;
-	hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
 
 	/* Extract MAC address */
 	memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
@@ -861,7 +864,8 @@ static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
 		/* reset rssi values */
 		mvmvif->bf_data.ave_beacon_signal = 0;
 
-		if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD)) {
+		if (!(mvm->fw->ucode_capa.flags &
+					IWL_UCODE_TLV_FLAGS_PM_CMD_SUPPORT)) {
 			/* Workaround for FW bug, otherwise FW disables device
 			 * power save upon disassociation
 			 */
diff --git a/drivers/net/wireless/iwlwifi/mvm/ops.c b/drivers/net/wireless/iwlwifi/mvm/ops.c
index 59b7cb3c6134..d86083c6f445 100644
--- a/drivers/net/wireless/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/iwlwifi/mvm/ops.c
@@ -459,7 +459,7 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
 	if (err)
 		goto out_unregister;
 
-	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD)
+	if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_PM_CMD_SUPPORT)
 		mvm->pm_ops = &pm_mac_ops;
 	else
 		mvm->pm_ops = &pm_legacy_ops;
-- 
cgit 


From 84cf0e620705e124e209e04ad55d2d6460b12188 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 28 Oct 2013 19:29:38 +0100
Subject: iwlwifi: transport config n_no_reclaim_cmds should be unsigned

The number of commands can never be negative, so it should
be using an unsigned type. This also shuts up an smatch
warning elsewhere in the code.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-trans.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-trans.h b/drivers/net/wireless/iwlwifi/iwl-trans.h
index dd57a36ecb10..2dc64b5c94c1 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans.h
@@ -344,7 +344,7 @@ struct iwl_trans_config {
 	u8 cmd_queue;
 	u8 cmd_fifo;
 	const u8 *no_reclaim_cmds;
-	int n_no_reclaim_cmds;
+	unsigned int n_no_reclaim_cmds;
 
 	bool rx_buf_size_8k;
 	bool bc_table_dword;
-- 
cgit 


From 22cba0c0852f558e742648a0d556aa9592748893 Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Mon, 21 Oct 2013 11:03:53 +0300
Subject: iwlwifi: mvm: BT Coex fix NULL pointer dereference

When we disassociate, mac80211 removes the station and
then, it sets the bss it unsets the assoc bool in bss_info.

Since the firwmware wants it the opposite (first set the
MAC context as unassoc, and only then, remove the STA of
the API), we have a small period of time in which the STA
in firmware doesn't have a valid ieee80211_sta pointer.
During that time, iwl_mvm_vif->ap_sta_id, is still set
to the STA in firmware that represent the AP.

This avoids:

[ 4481.476246] BUG: unable to handle kernel NULL pointer dereference at 00000045
[ 4481.479521] IP: [<f8416a6a>] iwl_mvm_bt_coex_reduced_txp+0x7a/0x190 [iwlmvm]
[ 4481.482023] *pde = 00000000
[ 4481.484332] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC
[ 4481.486897] Modules linked in: netconsole configfs autofs4 rfcomm(O) bnep(O) nfsd nfs_acl auth_rpcgss exportfs nfs lockd binfmt_misc sunrpc fscache arc4 iwlmvm(O) mac80211(O) btusb(O) iwlwifi(O) bluetooth(O) cfg80211(O) snd_hda_codec_hdmi coretemp dell_wmi snd_hda_codec_idt compat(O) dell_laptop aesni_intel i915 sparse_keymap dcdbas cryptd psmouse serio_raw aes_i586 microcode snd_hda_intel drm_kms_helper snd_hda_codec drm snd_pcm snd_timer i2c_algo_bit video intel_agp intel_gtt snd soundcore snd_page_alloc crc32c_intel ahci sdhci_pci libahci sdhci mmc_core e1000e xhci_hcd [last unloaded: configfs]
[ 4481.502983]
[ 4481.505599] Pid: 6507, comm: kworker/0:1 Tainted: G           O 3.4.43-dev #1 Dell Inc. Latitude E6430/0CMDYV
[ 4481.508575] EIP: 0060:[<f8416a6a>] EFLAGS: 00010246 CPU: 0
[ 4481.511248] EIP is at iwl_mvm_bt_coex_reduced_txp+0x7a/0x190 [iwlmvm]
[ 4481.513947] EAX: ffffffea EBX: 00000002 ECX: 00000001 EDX: 00000001
[ 4481.516710] ESI: ec6f0f28 EDI: 00000000 EBP: e8175dfc ESP: e8175d9c
[ 4481.519445]  DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 4481.522185] CR0: 8005003b CR2: 00000045 CR3: 01a5e000 CR4: 001407d0
[ 4481.524950] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
[ 4481.527768] DR6: ffff0ff0 DR7: 00000400
[ 4481.530565] Process kworker/0:1 (pid: 6507, ti=e8174000 task=e8032b20 task.ti=e8174000)
[ 4481.533447] Stack:
[ 4481.536379]  e472439f 00003a12 e8032b20 e8033048 00000001 e8175ddc 00000246 e8033040
[ 4481.540132]  00000002 01814990 ec4d1ddc e8175dcc 00000000 00000000 00000000 00000000
[ 4481.543867]  00000000 00000000 00000001 000001c8 009b0002 ec4d1ddc ec6f0f28 00000000
[ 4481.547633] Call Trace:
[ 4481.550578]  [<f8418027>] iwl_mvm_bt_rssi_event+0x197/0x220 [iwlmvm]
[ 4481.553537]  [<f840919c>] iwl_mvm_stat_iterator+0xdc/0x240 [iwlmvm]
[ 4481.556582]  [<f8d129c2>] __iterate_active_interfaces+0xe2/0x1f0 [mac80211]
[ 4481.559544]  [<f84090c0>] ? iwl_mvm_update_smps+0x90/0x90 [iwlmvm]
[ 4481.562519]  [<f84090c0>] ? iwl_mvm_update_smps+0x90/0x90 [iwlmvm]
[ 4481.565498]  [<f8d12b0c>] ieee80211_iterate_active_interfaces+0x3c/0x50 [mac80211]
[ 4481.568421]  [<f8409b43>] iwl_mvm_rx_statistics+0xb3/0x130 [iwlmvm]
[ 4481.571349]  [<f8405431>] iwl_mvm_async_handlers_wk+0xc1/0xf0 [iwlmvm]
[ 4481.574251]  [<c1052915>] ? process_one_work+0x105/0x5c0
[ 4481.577162]  [<c1052991>] process_one_work+0x181/0x5c0
[ 4481.580025]  [<c1052915>] ? process_one_work+0x105/0x5c0
[ 4481.582861]  [<f8405370>] ? iwl_mvm_rx_fw_logs+0x20/0x20 [iwlmvm]
[ 4481.585722]  [<c10530f1>] worker_thread+0x121/0x2c0
[ 4481.588536]  [<c1052fd0>] ? rescuer_thread+0x1d0/0x1d0
[ 4481.591323]  [<c105af0d>] kthread+0x7d/0x90
[ 4481.594059]  [<c105ae90>] ? flush_kthread_worker+0x120/0x120
[ 4481.596868]  [<c15b7cc2>] kernel_thread_helper+0x6/0x10
[ 4481.599605] Code: 9d de c3 c8 85 c0 74 0d 80 3d f8 ae 42 f8 00 0f 84 dc 00 00 00 8b 45 c8 0f b6 d3 31 ff 89 55 c0 8b 84 90 d8 03 00 00 0f b6 55 c7 <38> 50 5b 89 45 bc 0f 84 a8 00 00 00 a1 e4 d2 04 c2 85 c0 0f 84
[ 4481.611782] EIP: [<f8416a6a>] iwl_mvm_bt_coex_reduced_txp+0x7a/0x190 [iwlmvm] SS:ESP 0068:e8175d9c
[ 4481.614985] CR2: 0000000000000045
[ 4481.687441] ---[ end trace b11bc915fbac4412 ]---

Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/bt-coex.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index 5b630f12bbff..7444b2ac5b0a 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -505,12 +505,16 @@ static int iwl_mvm_bt_coex_reduced_txp(struct iwl_mvm *mvm, u8 sta_id,
 	struct iwl_mvm_sta *mvmsta;
 	int ret;
 
-	/* This can happen if the station has been removed right now */
 	if (sta_id == IWL_MVM_STATION_COUNT)
 		return 0;
 
 	sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[sta_id],
 					lockdep_is_held(&mvm->mutex));
+
+	/* This can happen if the station has been removed right now */
+	if (IS_ERR_OR_NULL(sta))
+		return 0;
+
 	mvmsta = (void *)sta->drv_priv;
 
 	/* nothing to do */
-- 
cgit 


From bcbb8c9c7d42e012d8f73dfcccfcc56d5c8da431 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 28 Oct 2013 15:50:55 +0100
Subject: iwlwifi: pcie: move warning message into warning

Having a WARN_ON() followed by a printed message is
less useful than having the message in the warning
so move the message.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/pcie/tx.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index b4168415538c..cc184402b88a 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -1495,12 +1495,11 @@ static int iwl_pcie_send_hcmd_sync(struct iwl_trans *trans,
 	IWL_DEBUG_INFO(trans, "Attempting to send sync command %s\n",
 		       get_cmd_string(trans_pcie, cmd->id));
 
-	if (WARN_ON(test_and_set_bit(STATUS_HCMD_ACTIVE,
-				     &trans_pcie->status))) {
-		IWL_ERR(trans, "Command %s: a command is already active!\n",
-			get_cmd_string(trans_pcie, cmd->id));
+	if (WARN(test_and_set_bit(STATUS_HCMD_ACTIVE,
+				  &trans_pcie->status),
+		 "Command %s: a command is already active!\n",
+		 get_cmd_string(trans_pcie, cmd->id)))
 		return -EIO;
-	}
 
 	IWL_DEBUG_INFO(trans, "Setting HCMD_ACTIVE for command %s\n",
 		       get_cmd_string(trans_pcie, cmd->id));
-- 
cgit 


From fb8b8ee10e1bff6531d588525d6b6c3440e71e11 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 21 Oct 2013 12:37:53 +0200
Subject: iwlwifi: mvm: capture the FCS in monitor mode

This can be useful when using the device as a sniffer.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c | 8 +++++++-
 drivers/net/wireless/iwlwifi/mvm/rx.c       | 6 +++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
index ab5a7ac90dcd..f41f9b079831 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
+++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c
@@ -719,7 +719,9 @@ static int iwl_mvm_mac_ctxt_cmd_listener(struct iwl_mvm *mvm,
 	cmd.filter_flags = cpu_to_le32(MAC_FILTER_IN_PROMISC |
 				       MAC_FILTER_IN_CONTROL_AND_MGMT |
 				       MAC_FILTER_IN_BEACON |
-				       MAC_FILTER_IN_PROBE_REQUEST);
+				       MAC_FILTER_IN_PROBE_REQUEST |
+				       MAC_FILTER_IN_CRC32);
+	mvm->hw->flags |= IEEE80211_HW_RX_INCLUDES_FCS;
 
 	return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd);
 }
@@ -1122,6 +1124,10 @@ int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
 	}
 
 	mvmvif->uploaded = false;
+
+	if (vif->type == NL80211_IFTYPE_MONITOR)
+		mvm->hw->flags &= ~IEEE80211_HW_RX_INCLUDES_FCS;
+
 	return 0;
 }
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/rx.c b/drivers/net/wireless/iwlwifi/mvm/rx.c
index a4af5019a496..3a1f3982109d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/rx.c
+++ b/drivers/net/wireless/iwlwifi/mvm/rx.c
@@ -300,10 +300,14 @@ int iwl_mvm_rx_rx_mpdu(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb,
 		return 0;
 	}
 
+	/*
+	 * Keep packets with CRC errors (and with overrun) for monitor mode
+	 * (otherwise the firmware discards them) but mark them as bad.
+	 */
 	if (!(rx_pkt_status & RX_MPDU_RES_STATUS_CRC_OK) ||
 	    !(rx_pkt_status & RX_MPDU_RES_STATUS_OVERRUN_OK)) {
 		IWL_DEBUG_RX(mvm, "Bad CRC or FIFO: 0x%08X.\n", rx_pkt_status);
-		return 0;
+		rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
 	}
 
 	/* This will be used in several places later */
-- 
cgit 


From cbb346f2fc61acf62f97e3dd4da230b12f1cafaf Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 25 Oct 2013 13:03:40 +0200
Subject: iwlwifi: mvm: add missing break in debugfs

When writing the disable_power_off value, the LPRX
enable value also gets written unintentionally, so
fix that by adding the missing break statement.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/debugfs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
index 0675f0c8ef93..9864d713eb2c 100644
--- a/drivers/net/wireless/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/iwlwifi/mvm/debugfs.c
@@ -342,6 +342,7 @@ static void iwl_dbgfs_update_pm(struct iwl_mvm *mvm,
 	case MVM_DEBUGFS_PM_DISABLE_POWER_OFF:
 		IWL_DEBUG_POWER(mvm, "disable_power_off=%d\n", val);
 		dbgfs_pm->disable_power_off = val;
+		break;
 	case MVM_DEBUGFS_PM_LPRX_ENA:
 		IWL_DEBUG_POWER(mvm, "lprx %s\n", val ? "enabled" : "disabled");
 		dbgfs_pm->lprx_ena = val;
-- 
cgit 


From befe9b6fd897e1bfce224b662ce62dd751843c34 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 25 Oct 2013 12:32:51 +0200
Subject: iwlwifi: warn if firmware image doesn't exist

If the firmware image that we attempt to load doesn't
actually exist we have a broken firmware file or other
code not checking things correctly, so warn in such a
case. Also avoid assigning cur_ucode/ucode_loaded then.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/dvm/ucode.c | 9 ++++-----
 drivers/net/wireless/iwlwifi/mvm/fw.c    | 8 +++-----
 2 files changed, 7 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/dvm/ucode.c b/drivers/net/wireless/iwlwifi/dvm/ucode.c
index 86270b69cd02..63637949a146 100644
--- a/drivers/net/wireless/iwlwifi/dvm/ucode.c
+++ b/drivers/net/wireless/iwlwifi/dvm/ucode.c
@@ -330,15 +330,14 @@ int iwl_load_ucode_wait_alive(struct iwl_priv *priv,
 	enum iwl_ucode_type old_type;
 	static const u8 alive_cmd[] = { REPLY_ALIVE };
 
-	old_type = priv->cur_ucode;
-	priv->cur_ucode = ucode_type;
 	fw = iwl_get_ucode_image(priv, ucode_type);
+	if (WARN_ON(!fw))
+		return -EINVAL;
 
+	old_type = priv->cur_ucode;
+	priv->cur_ucode = ucode_type;
 	priv->ucode_loaded = false;
 
-	if (!fw)
-		return -EINVAL;
-
 	iwl_init_notification_wait(&priv->notif_wait, &alive_wait,
 				   alive_cmd, ARRAY_SIZE(alive_cmd),
 				   iwl_alive_fn, &alive_data);
diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c
index 83fc5ca04433..70e5297646b2 100644
--- a/drivers/net/wireless/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/iwlwifi/mvm/fw.c
@@ -151,13 +151,11 @@ static int iwl_mvm_load_ucode_wait_alive(struct iwl_mvm *mvm,
 	enum iwl_ucode_type old_type = mvm->cur_ucode;
 	static const u8 alive_cmd[] = { MVM_ALIVE };
 
-	mvm->cur_ucode = ucode_type;
 	fw = iwl_get_ucode_image(mvm, ucode_type);
-
-	mvm->ucode_loaded = false;
-
-	if (!fw)
+	if (WARN_ON(!fw))
 		return -EINVAL;
+	mvm->cur_ucode = ucode_type;
+	mvm->ucode_loaded = false;
 
 	iwl_init_notification_wait(&mvm->notif_wait, &alive_wait,
 				   alive_cmd, ARRAY_SIZE(alive_cmd),
-- 
cgit 


From 30612cd90005d8c4a3c53c7acadcf934a46c13df Mon Sep 17 00:00:00 2001
From: Markus Pargmann <mpa@pengutronix.de>
Date: Mon, 28 Oct 2013 10:00:36 +0100
Subject: pinctrl: imx1 core driver

Core driver for register formats of imx1/imx21/imx27 processors.

The pins of those processors are grouped into ports. Each port has 32
pins. The pins mux configuration is controlled by registers with 1 or 2
bit per pin, depending on the specific control register.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/Kconfig             |   5 +
 drivers/pinctrl/Makefile            |   1 +
 drivers/pinctrl/pinctrl-imx1-core.c | 653 ++++++++++++++++++++++++++++++++++++
 drivers/pinctrl/pinctrl-imx1.h      |  73 ++++
 4 files changed, 732 insertions(+)
 create mode 100644 drivers/pinctrl/pinctrl-imx1-core.c
 create mode 100644 drivers/pinctrl/pinctrl-imx1.h

diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index e283c4970d1d..fcc748f68f4a 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -109,6 +109,11 @@ config PINCTRL_IMX
 	select PINMUX
 	select PINCONF
 
+config PINCTRL_IMX1_CORE
+	bool
+	select PINMUX
+	select PINCONF
+
 config PINCTRL_IMX35
 	bool "IMX35 pinctrl driver"
 	depends on OF
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index 8476cd902069..8b334e305537 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -22,6 +22,7 @@ obj-$(CONFIG_PINCTRL_AT91)	+= pinctrl-at91.o
 obj-$(CONFIG_PINCTRL_BCM2835)	+= pinctrl-bcm2835.o
 obj-$(CONFIG_PINCTRL_BAYTRAIL)	+= pinctrl-baytrail.o
 obj-$(CONFIG_PINCTRL_IMX)	+= pinctrl-imx.o
+obj-$(CONFIG_PINCTRL_IMX1_CORE)	+= pinctrl-imx1-core.o
 obj-$(CONFIG_PINCTRL_IMX35)	+= pinctrl-imx35.o
 obj-$(CONFIG_PINCTRL_IMX51)	+= pinctrl-imx51.o
 obj-$(CONFIG_PINCTRL_IMX53)	+= pinctrl-imx53.o
diff --git a/drivers/pinctrl/pinctrl-imx1-core.c b/drivers/pinctrl/pinctrl-imx1-core.c
new file mode 100644
index 000000000000..4d5a9e74dc8f
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-imx1-core.c
@@ -0,0 +1,653 @@
+/*
+ * Core driver for the imx pin controller in imx1/21/27
+ *
+ * Copyright (C) 2013 Pengutronix
+ * Author: Markus Pargmann <mpa@pengutronix.de>
+ *
+ * Based on pinctrl-imx.c:
+ *	Author: Dong Aisheng <dong.aisheng@linaro.org>
+ *	Copyright (C) 2012 Freescale Semiconductor, Inc.
+ *	Copyright (C) 2012 Linaro Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/bitops.h>
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/pinctrl/machine.h>
+#include <linux/pinctrl/pinconf.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/slab.h>
+
+#include "core.h"
+#include "pinctrl-imx1.h"
+
+struct imx1_pinctrl {
+	struct device *dev;
+	struct pinctrl_dev *pctl;
+	void __iomem *base;
+	const struct imx1_pinctrl_soc_info *info;
+};
+
+/*
+ * MX1 register offsets
+ */
+
+#define MX1_DDIR 0x00
+#define MX1_OCR 0x04
+#define MX1_ICONFA 0x0c
+#define MX1_ICONFB 0x10
+#define MX1_GIUS 0x20
+#define MX1_GPR 0x38
+#define MX1_PUEN 0x40
+
+#define MX1_PORT_STRIDE 0x100
+
+
+/*
+ * MUX_ID format defines
+ */
+#define MX1_MUX_FUNCTION(val) (BIT(0) & val)
+#define MX1_MUX_GPIO(val) ((BIT(1) & val) >> 1)
+#define MX1_MUX_DIR(val) ((BIT(2) & val) >> 2)
+#define MX1_MUX_OCONF(val) (((BIT(4) | BIT(5)) & val) >> 4)
+#define MX1_MUX_ICONFA(val) (((BIT(8) | BIT(9)) & val) >> 8)
+#define MX1_MUX_ICONFB(val) (((BIT(10) | BIT(11)) & val) >> 10)
+
+
+/*
+ * IMX1 IOMUXC manages the pins based on ports. Each port has 32 pins. IOMUX
+ * control register are seperated into function, output configuration, input
+ * configuration A, input configuration B, GPIO in use and data direction.
+ *
+ * Those controls that are represented by 1 bit have a direct mapping between
+ * bit position and pin id. If they are represented by 2 bit, the lower 16 pins
+ * are in the first register and the upper 16 pins in the second (next)
+ * register. pin_id is stored in bit (pin_id%16)*2 and the bit above.
+ */
+
+/*
+ * Calculates the register offset from a pin_id
+ */
+static void __iomem *imx1_mem(struct imx1_pinctrl *ipctl, unsigned int pin_id)
+{
+	unsigned int port = pin_id / 32;
+	return ipctl->base + port * MX1_PORT_STRIDE;
+}
+
+/*
+ * Write to a register with 2 bits per pin. The function will automatically
+ * use the next register if the pin is managed in the second register.
+ */
+static void imx1_write_2bit(struct imx1_pinctrl *ipctl, unsigned int pin_id,
+		u32 value, u32 reg_offset)
+{
+	void __iomem *reg = imx1_mem(ipctl, pin_id) + reg_offset;
+	int offset = (pin_id % 16) * 2; /* offset, regardless of register used */
+	int mask = ~(0x3 << offset); /* Mask for 2 bits at offset */
+	u32 old_val;
+	u32 new_val;
+
+	dev_dbg(ipctl->dev, "write: register 0x%p offset %d value 0x%x\n",
+			reg, offset, value);
+
+	/* Use the next register if the pin's port pin number is >=16 */
+	if (pin_id % 32 >= 16)
+		reg += 0x04;
+
+	/* Get current state of pins */
+	old_val = readl(reg);
+	old_val &= mask;
+
+	new_val = value & 0x3; /* Make sure value is really 2 bit */
+	new_val <<= offset;
+	new_val |= old_val;/* Set new state for pin_id */
+
+	writel(new_val, reg);
+}
+
+static void imx1_write_bit(struct imx1_pinctrl *ipctl, unsigned int pin_id,
+		u32 value, u32 reg_offset)
+{
+	void __iomem *reg = imx1_mem(ipctl, pin_id) + reg_offset;
+	int offset = pin_id % 32;
+	int mask = ~BIT_MASK(offset);
+	u32 old_val;
+	u32 new_val;
+
+	/* Get current state of pins */
+	old_val = readl(reg);
+	old_val &= mask;
+
+	new_val = value & 0x1; /* Make sure value is really 1 bit */
+	new_val <<= offset;
+	new_val |= old_val;/* Set new state for pin_id */
+
+	writel(new_val, reg);
+}
+
+static int imx1_read_2bit(struct imx1_pinctrl *ipctl, unsigned int pin_id,
+		u32 reg_offset)
+{
+	void __iomem *reg = imx1_mem(ipctl, pin_id) + reg_offset;
+	int offset = pin_id % 16;
+
+	/* Use the next register if the pin's port pin number is >=16 */
+	if (pin_id % 32 >= 16)
+		reg += 0x04;
+
+	return (readl(reg) & (BIT(offset) | BIT(offset+1))) >> offset;
+}
+
+static int imx1_read_bit(struct imx1_pinctrl *ipctl, unsigned int pin_id,
+		u32 reg_offset)
+{
+	void __iomem *reg = imx1_mem(ipctl, pin_id) + reg_offset;
+	int offset = pin_id % 32;
+
+	return !!(readl(reg) & BIT(offset));
+}
+
+static const inline struct imx1_pin_group *imx1_pinctrl_find_group_by_name(
+				const struct imx1_pinctrl_soc_info *info,
+				const char *name)
+{
+	const struct imx1_pin_group *grp = NULL;
+	int i;
+
+	for (i = 0; i < info->ngroups; i++) {
+		if (!strcmp(info->groups[i].name, name)) {
+			grp = &info->groups[i];
+			break;
+		}
+	}
+
+	return grp;
+}
+
+static int imx1_get_groups_count(struct pinctrl_dev *pctldev)
+{
+	struct imx1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
+	const struct imx1_pinctrl_soc_info *info = ipctl->info;
+
+	return info->ngroups;
+}
+
+static const char *imx1_get_group_name(struct pinctrl_dev *pctldev,
+				       unsigned selector)
+{
+	struct imx1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
+	const struct imx1_pinctrl_soc_info *info = ipctl->info;
+
+	return info->groups[selector].name;
+}
+
+static int imx1_get_group_pins(struct pinctrl_dev *pctldev, unsigned selector,
+			       const unsigned int **pins,
+			       unsigned *npins)
+{
+	struct imx1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
+	const struct imx1_pinctrl_soc_info *info = ipctl->info;
+
+	if (selector >= info->ngroups)
+		return -EINVAL;
+
+	*pins = info->groups[selector].pin_ids;
+	*npins = info->groups[selector].npins;
+
+	return 0;
+}
+
+static void imx1_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s,
+		   unsigned offset)
+{
+	struct imx1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
+
+	seq_printf(s, "GPIO %d, function %d, direction %d, oconf %d, iconfa %d, iconfb %d",
+			imx1_read_bit(ipctl, offset, MX1_GIUS),
+			imx1_read_bit(ipctl, offset, MX1_GPR),
+			imx1_read_bit(ipctl, offset, MX1_DDIR),
+			imx1_read_2bit(ipctl, offset, MX1_OCR),
+			imx1_read_2bit(ipctl, offset, MX1_ICONFA),
+			imx1_read_2bit(ipctl, offset, MX1_ICONFB));
+}
+
+static int imx1_dt_node_to_map(struct pinctrl_dev *pctldev,
+			struct device_node *np,
+			struct pinctrl_map **map, unsigned *num_maps)
+{
+	struct imx1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
+	const struct imx1_pinctrl_soc_info *info = ipctl->info;
+	const struct imx1_pin_group *grp;
+	struct pinctrl_map *new_map;
+	struct device_node *parent;
+	int map_num = 1;
+	int i, j;
+
+	/*
+	 * first find the group of this node and check if we need create
+	 * config maps for pins
+	 */
+	grp = imx1_pinctrl_find_group_by_name(info, np->name);
+	if (!grp) {
+		dev_err(info->dev, "unable to find group for node %s\n",
+			np->name);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < grp->npins; i++)
+		map_num++;
+
+	new_map = kmalloc(sizeof(struct pinctrl_map) * map_num, GFP_KERNEL);
+	if (!new_map)
+		return -ENOMEM;
+
+	*map = new_map;
+	*num_maps = map_num;
+
+	/* create mux map */
+	parent = of_get_parent(np);
+	if (!parent) {
+		kfree(new_map);
+		return -EINVAL;
+	}
+	new_map[0].type = PIN_MAP_TYPE_MUX_GROUP;
+	new_map[0].data.mux.function = parent->name;
+	new_map[0].data.mux.group = np->name;
+	of_node_put(parent);
+
+	/* create config map */
+	new_map++;
+	for (i = j = 0; i < grp->npins; i++) {
+		new_map[j].type = PIN_MAP_TYPE_CONFIGS_PIN;
+		new_map[j].data.configs.group_or_pin =
+				pin_get_name(pctldev, grp->pins[i].pin_id);
+		new_map[j].data.configs.configs = &grp->pins[i].config;
+		new_map[j].data.configs.num_configs = 1;
+		j++;
+	}
+
+	dev_dbg(pctldev->dev, "maps: function %s group %s num %d\n",
+		(*map)->data.mux.function, (*map)->data.mux.group, map_num);
+
+	return 0;
+}
+
+static void imx1_dt_free_map(struct pinctrl_dev *pctldev,
+				struct pinctrl_map *map, unsigned num_maps)
+{
+	kfree(map);
+}
+
+static const struct pinctrl_ops imx1_pctrl_ops = {
+	.get_groups_count = imx1_get_groups_count,
+	.get_group_name = imx1_get_group_name,
+	.get_group_pins = imx1_get_group_pins,
+	.pin_dbg_show = imx1_pin_dbg_show,
+	.dt_node_to_map = imx1_dt_node_to_map,
+	.dt_free_map = imx1_dt_free_map,
+
+};
+
+static int imx1_pmx_enable(struct pinctrl_dev *pctldev, unsigned selector,
+			   unsigned group)
+{
+	struct imx1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
+	const struct imx1_pinctrl_soc_info *info = ipctl->info;
+	const struct imx1_pin *pins;
+	unsigned int npins;
+	int i;
+
+	/*
+	 * Configure the mux mode for each pin in the group for a specific
+	 * function.
+	 */
+	pins = info->groups[group].pins;
+	npins = info->groups[group].npins;
+
+	WARN_ON(!pins || !npins);
+
+	dev_dbg(ipctl->dev, "enable function %s group %s\n",
+		info->functions[selector].name, info->groups[group].name);
+
+	for (i = 0; i < npins; i++) {
+		unsigned int mux = pins[i].mux_id;
+		unsigned int pin_id = pins[i].pin_id;
+		unsigned int afunction = MX1_MUX_FUNCTION(mux);
+		unsigned int gpio_in_use = MX1_MUX_GPIO(mux);
+		unsigned int direction = MX1_MUX_DIR(mux);
+		unsigned int gpio_oconf = MX1_MUX_OCONF(mux);
+		unsigned int gpio_iconfa = MX1_MUX_ICONFA(mux);
+		unsigned int gpio_iconfb = MX1_MUX_ICONFB(mux);
+
+		dev_dbg(pctldev->dev, "%s, pin 0x%x, function %d, gpio %d, direction %d, oconf %d, iconfa %d, iconfb %d\n",
+				__func__, pin_id, afunction, gpio_in_use,
+				direction, gpio_oconf, gpio_iconfa,
+				gpio_iconfb);
+
+		imx1_write_bit(ipctl, pin_id, gpio_in_use, MX1_GIUS);
+		imx1_write_bit(ipctl, pin_id, direction, MX1_DDIR);
+
+		if (gpio_in_use) {
+			imx1_write_2bit(ipctl, pin_id, gpio_oconf, MX1_OCR);
+			imx1_write_2bit(ipctl, pin_id, gpio_iconfa,
+					MX1_ICONFA);
+			imx1_write_2bit(ipctl, pin_id, gpio_iconfb,
+					MX1_ICONFB);
+		} else {
+			imx1_write_bit(ipctl, pin_id, afunction, MX1_GPR);
+		}
+	}
+
+	return 0;
+}
+
+static int imx1_pmx_get_funcs_count(struct pinctrl_dev *pctldev)
+{
+	struct imx1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
+	const struct imx1_pinctrl_soc_info *info = ipctl->info;
+
+	return info->nfunctions;
+}
+
+static const char *imx1_pmx_get_func_name(struct pinctrl_dev *pctldev,
+					  unsigned selector)
+{
+	struct imx1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
+	const struct imx1_pinctrl_soc_info *info = ipctl->info;
+
+	return info->functions[selector].name;
+}
+
+static int imx1_pmx_get_groups(struct pinctrl_dev *pctldev, unsigned selector,
+			       const char * const **groups,
+			       unsigned * const num_groups)
+{
+	struct imx1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
+	const struct imx1_pinctrl_soc_info *info = ipctl->info;
+
+	*groups = info->functions[selector].groups;
+	*num_groups = info->functions[selector].num_groups;
+
+	return 0;
+}
+
+static const struct pinmux_ops imx1_pmx_ops = {
+	.get_functions_count = imx1_pmx_get_funcs_count,
+	.get_function_name = imx1_pmx_get_func_name,
+	.get_function_groups = imx1_pmx_get_groups,
+	.enable = imx1_pmx_enable,
+};
+
+static int imx1_pinconf_get(struct pinctrl_dev *pctldev,
+			     unsigned pin_id, unsigned long *config)
+{
+	struct imx1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
+
+	*config = imx1_read_bit(ipctl, pin_id, MX1_PUEN);
+
+	return 0;
+}
+
+static int imx1_pinconf_set(struct pinctrl_dev *pctldev,
+			     unsigned pin_id, unsigned long *configs,
+			     unsigned num_configs)
+{
+	struct imx1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
+	const struct imx1_pinctrl_soc_info *info = ipctl->info;
+	int i;
+
+	for (i = 0; i != num_configs; ++i) {
+		imx1_write_bit(ipctl, pin_id, configs[i] & 0x01, MX1_PUEN);
+
+		dev_dbg(ipctl->dev, "pinconf set pullup pin %s\n",
+			info->pins[pin_id].name);
+	}
+
+	return 0;
+}
+
+static void imx1_pinconf_dbg_show(struct pinctrl_dev *pctldev,
+				   struct seq_file *s, unsigned pin_id)
+{
+	unsigned long config;
+
+	imx1_pinconf_get(pctldev, pin_id, &config);
+	seq_printf(s, "0x%lx", config);
+}
+
+static void imx1_pinconf_group_dbg_show(struct pinctrl_dev *pctldev,
+					 struct seq_file *s, unsigned group)
+{
+	struct imx1_pinctrl *ipctl = pinctrl_dev_get_drvdata(pctldev);
+	const struct imx1_pinctrl_soc_info *info = ipctl->info;
+	struct imx1_pin_group *grp;
+	unsigned long config;
+	const char *name;
+	int i, ret;
+
+	if (group > info->ngroups)
+		return;
+
+	seq_puts(s, "\n");
+	grp = &info->groups[group];
+	for (i = 0; i < grp->npins; i++) {
+		name = pin_get_name(pctldev, grp->pins[i].pin_id);
+		ret = imx1_pinconf_get(pctldev, grp->pins[i].pin_id, &config);
+		if (ret)
+			return;
+		seq_printf(s, "%s: 0x%lx", name, config);
+	}
+}
+
+static const struct pinconf_ops imx1_pinconf_ops = {
+	.pin_config_get = imx1_pinconf_get,
+	.pin_config_set = imx1_pinconf_set,
+	.pin_config_dbg_show = imx1_pinconf_dbg_show,
+	.pin_config_group_dbg_show = imx1_pinconf_group_dbg_show,
+};
+
+static struct pinctrl_desc imx1_pinctrl_desc = {
+	.pctlops = &imx1_pctrl_ops,
+	.pmxops = &imx1_pmx_ops,
+	.confops = &imx1_pinconf_ops,
+	.owner = THIS_MODULE,
+};
+
+static int imx1_pinctrl_parse_groups(struct device_node *np,
+				    struct imx1_pin_group *grp,
+				    struct imx1_pinctrl_soc_info *info,
+				    u32 index)
+{
+	int size;
+	const __be32 *list;
+	int i;
+
+	dev_dbg(info->dev, "group(%d): %s\n", index, np->name);
+
+	/* Initialise group */
+	grp->name = np->name;
+
+	/*
+	 * the binding format is fsl,pins = <PIN MUX_ID CONFIG>
+	 */
+	list = of_get_property(np, "fsl,pins", &size);
+	/* we do not check return since it's safe node passed down */
+	if (!size || size % 12) {
+		dev_notice(info->dev, "Not a valid fsl,pins property (%s)\n",
+				np->name);
+		return -EINVAL;
+	}
+
+	grp->npins = size / 12;
+	grp->pins = devm_kzalloc(info->dev,
+			grp->npins * sizeof(struct imx1_pin), GFP_KERNEL);
+	grp->pin_ids = devm_kzalloc(info->dev,
+			grp->npins * sizeof(unsigned int), GFP_KERNEL);
+
+	if (!grp->pins || !grp->pin_ids)
+		return -ENOMEM;
+
+	for (i = 0; i < grp->npins; i++) {
+		grp->pins[i].pin_id = be32_to_cpu(*list++);
+		grp->pins[i].mux_id = be32_to_cpu(*list++);
+		grp->pins[i].config = be32_to_cpu(*list++);
+
+		grp->pin_ids[i] = grp->pins[i].pin_id;
+	}
+
+	return 0;
+}
+
+static int imx1_pinctrl_parse_functions(struct device_node *np,
+				       struct imx1_pinctrl_soc_info *info,
+				       u32 index)
+{
+	struct device_node *child;
+	struct imx1_pmx_func *func;
+	struct imx1_pin_group *grp;
+	int ret;
+	static u32 grp_index;
+	u32 i = 0;
+
+	dev_dbg(info->dev, "parse function(%d): %s\n", index, np->name);
+
+	func = &info->functions[index];
+
+	/* Initialise function */
+	func->name = np->name;
+	func->num_groups = of_get_child_count(np);
+	if (func->num_groups <= 0)
+		return -EINVAL;
+
+	func->groups = devm_kzalloc(info->dev,
+			func->num_groups * sizeof(char *), GFP_KERNEL);
+
+	if (!func->groups)
+		return -ENOMEM;
+
+	for_each_child_of_node(np, child) {
+		func->groups[i] = child->name;
+		grp = &info->groups[grp_index++];
+		ret = imx1_pinctrl_parse_groups(child, grp, info, i++);
+		if (ret == -ENOMEM)
+			return ret;
+	}
+
+	return 0;
+}
+
+static int imx1_pinctrl_parse_dt(struct platform_device *pdev,
+		struct imx1_pinctrl *pctl, struct imx1_pinctrl_soc_info *info)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct device_node *child;
+	int ret;
+	u32 nfuncs = 0;
+	u32 ngroups = 0;
+	u32 ifunc = 0;
+
+	if (!np)
+		return -ENODEV;
+
+	for_each_child_of_node(np, child) {
+		++nfuncs;
+		ngroups += of_get_child_count(child);
+	}
+
+	if (!nfuncs) {
+		dev_err(&pdev->dev, "No pin functions defined\n");
+		return -EINVAL;
+	}
+
+	info->nfunctions = nfuncs;
+	info->functions = devm_kzalloc(&pdev->dev,
+			nfuncs * sizeof(struct imx1_pmx_func), GFP_KERNEL);
+
+	info->ngroups = ngroups;
+	info->groups = devm_kzalloc(&pdev->dev,
+			ngroups * sizeof(struct imx1_pin_group), GFP_KERNEL);
+
+
+	if (!info->functions || !info->groups)
+		return -ENOMEM;
+
+	for_each_child_of_node(np, child) {
+		ret = imx1_pinctrl_parse_functions(child, info, ifunc++);
+		if (ret == -ENOMEM)
+			return -ENOMEM;
+	}
+
+	return 0;
+}
+
+int imx1_pinctrl_core_probe(struct platform_device *pdev,
+		      struct imx1_pinctrl_soc_info *info)
+{
+	struct imx1_pinctrl *ipctl;
+	struct resource *res;
+	struct pinctrl_desc *pctl_desc;
+	int ret;
+
+	if (!info || !info->pins || !info->npins) {
+		dev_err(&pdev->dev, "wrong pinctrl info\n");
+		return -EINVAL;
+	}
+	info->dev = &pdev->dev;
+
+	/* Create state holders etc for this driver */
+	ipctl = devm_kzalloc(&pdev->dev, sizeof(*ipctl), GFP_KERNEL);
+	if (!ipctl)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -ENOENT;
+
+	ipctl->base = devm_ioremap_nocache(&pdev->dev, res->start,
+			resource_size(res));
+	if (IS_ERR(ipctl->base))
+		return PTR_ERR(ipctl->base);
+
+	pctl_desc = &imx1_pinctrl_desc;
+	pctl_desc->name = dev_name(&pdev->dev);
+	pctl_desc->pins = info->pins;
+	pctl_desc->npins = info->npins;
+
+	ret = imx1_pinctrl_parse_dt(pdev, ipctl, info);
+	if (ret) {
+		dev_err(&pdev->dev, "fail to probe dt properties\n");
+		return ret;
+	}
+
+	ipctl->info = info;
+	ipctl->dev = info->dev;
+	platform_set_drvdata(pdev, ipctl);
+	ipctl->pctl = pinctrl_register(pctl_desc, &pdev->dev, ipctl);
+	if (!ipctl->pctl) {
+		dev_err(&pdev->dev, "could not register IMX pinctrl driver\n");
+		return -EINVAL;
+	}
+
+	dev_info(&pdev->dev, "initialized IMX pinctrl driver\n");
+
+	return 0;
+}
+
+int imx1_pinctrl_core_remove(struct platform_device *pdev)
+{
+	struct imx1_pinctrl *ipctl = platform_get_drvdata(pdev);
+
+	pinctrl_unregister(ipctl->pctl);
+
+	return 0;
+}
diff --git a/drivers/pinctrl/pinctrl-imx1.h b/drivers/pinctrl/pinctrl-imx1.h
new file mode 100644
index 000000000000..692a54c15cda
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-imx1.h
@@ -0,0 +1,73 @@
+/*
+ * IMX pinmux core definitions
+ *
+ * Copyright (C) 2012 Freescale Semiconductor, Inc.
+ * Copyright (C) 2012 Linaro Ltd.
+ *
+ * Author: Dong Aisheng <dong.aisheng@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __DRIVERS_PINCTRL_IMX1_H
+#define __DRIVERS_PINCTRL_IMX1_H
+
+struct platform_device;
+
+/**
+ * struct imx1_pin - describes an IMX1/21/27 pin.
+ * @pin_id: ID of the described pin.
+ * @mux_id: ID of the mux setup.
+ * @config: Configuration of the pin (currently only pullup-enable).
+ */
+struct imx1_pin {
+	unsigned int pin_id;
+	unsigned int mux_id;
+	unsigned long config;
+};
+
+/**
+ * struct imx1_pin_group - describes an IMX pin group
+ * @name: the name of this specific pin group
+ * @pins: an array of imx1_pin structs used in this group
+ * @npins: the number of pins in this group array, i.e. the number of
+ *	elements in .pins so we can iterate over that array
+ */
+struct imx1_pin_group {
+	const char *name;
+	unsigned int *pin_ids;
+	struct imx1_pin *pins;
+	unsigned npins;
+};
+
+/**
+ * struct imx1_pmx_func - describes IMX pinmux functions
+ * @name: the name of this specific function
+ * @groups: corresponding pin groups
+ * @num_groups: the number of groups
+ */
+struct imx1_pmx_func {
+	const char *name;
+	const char **groups;
+	unsigned num_groups;
+};
+
+struct imx1_pinctrl_soc_info {
+	struct device *dev;
+	const struct pinctrl_pin_desc *pins;
+	unsigned int npins;
+	struct imx1_pin_group *groups;
+	unsigned int ngroups;
+	struct imx1_pmx_func *functions;
+	unsigned int nfunctions;
+};
+
+#define IMX_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin)
+
+int imx1_pinctrl_core_probe(struct platform_device *pdev,
+			struct imx1_pinctrl_soc_info *info);
+int imx1_pinctrl_core_remove(struct platform_device *pdev);
+#endif /* __DRIVERS_PINCTRL_IMX1_H */
-- 
cgit 


From 01a87d91fcecced2e2bdcd797794b4ede1f64b77 Mon Sep 17 00:00:00 2001
From: Benny Halevy <bhalevy@primarydata.com>
Date: Mon, 14 Oct 2013 09:01:55 +0300
Subject: nfsd: no need to unhash_stid before free

idr_remove is about to be called before kmem_cache_free so unhashing it
is redundant

Signed-off-by: Benny Halevy <bhalevy@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/nfs4state.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 77dfc5a6a011..a90949aefe80 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -672,7 +672,6 @@ static void unhash_open_stateid(struct nfs4_ol_stateid *stp)
 static void release_open_stateid(struct nfs4_ol_stateid *stp)
 {
 	unhash_open_stateid(stp);
-	unhash_stid(&stp->st_stid);
 	free_generic_stateid(stp);
 }
 
@@ -694,7 +693,6 @@ static void release_last_closed_stateid(struct nfs4_openowner *oo)
 	struct nfs4_ol_stateid *s = oo->oo_last_closed_stid;
 
 	if (s) {
-		unhash_stid(&s->st_stid);
 		free_generic_stateid(s);
 		oo->oo_last_closed_stid = NULL;
 	}
@@ -3998,10 +3996,9 @@ nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 
 	nfsd4_close_open_stateid(stp);
 
-	if (cstate->minorversion) {
-		unhash_stid(&stp->st_stid);
+	if (cstate->minorversion)
 		free_generic_stateid(stp);
-	} else
+	else
 		oo->oo_last_closed_stid = stp;
 
 	if (list_empty(&oo->oo_owner.so_stateids)) {
-- 
cgit 


From a8d09e3a6dfc44fd2246f3c57d2cd00e1a56e2bd Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 29 Oct 2013 15:07:19 +0100
Subject: ALSA: opl3: Fix possible negative array index access

Spotted by coverity CID 115196.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/drivers/opl3/opl3_midi.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/drivers/opl3/opl3_midi.c b/sound/drivers/opl3/opl3_midi.c
index 0c796bcbc0a3..6c6d09a51f42 100644
--- a/sound/drivers/opl3/opl3_midi.c
+++ b/sound/drivers/opl3/opl3_midi.c
@@ -390,6 +390,11 @@ void snd_opl3_note_on(void *p, int note, int vel, struct snd_midi_channel *chan)
 		voice = snd_opl3_oss_map[chan->number];		
 	}
 
+	if (voice < 0) {
+		spin_unlock_irqrestore(&opl3->voice_lock, flags);
+		return;
+	}
+
 	if (voice < MAX_OPL2_VOICES) {
 		/* Left register block for voices 0 .. 8 */
 		reg_side = OPL3_LEFT;
-- 
cgit 


From 75415df8ffbac2ace9463ceffb3f21299af2548a Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 29 Oct 2013 15:15:20 +0100
Subject: ALSA: pcsp: Fix initialization with nopcm=1

When nopcm=1 is set, some initializations based on hrtimer resolution
might be bogus because the driver checks the resolution only when
nopcm=0.  Simply get the resolution always at first for fixing the
bug.

Spotted by coverity CID 139740.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/drivers/pcsp/pcsp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/drivers/pcsp/pcsp.c b/sound/drivers/pcsp/pcsp.c
index 1c19cd7ad26e..f664bae3b9b0 100644
--- a/sound/drivers/pcsp/pcsp.c
+++ b/sound/drivers/pcsp/pcsp.c
@@ -46,8 +46,9 @@ static int snd_pcsp_create(struct snd_card *card)
 	int err;
 	int div, min_div, order;
 
+	hrtimer_get_res(CLOCK_MONOTONIC, &tp);
+
 	if (!nopcm) {
-		hrtimer_get_res(CLOCK_MONOTONIC, &tp);
 		if (tp.tv_sec || tp.tv_nsec > PCSP_MAX_PERIOD_NS) {
 			printk(KERN_ERR "PCSP: Timer resolution is not sufficient "
 				"(%linS)\n", tp.tv_nsec);
-- 
cgit 


From 97f44f56ca94709f45bc348f5d2c88696eae5f9b Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 29 Oct 2013 15:20:06 +0100
Subject: ALSA: Limit the fallback card id string size

When no proper id string is given, the driver tries to fall back to
copy the proc_root name string via strcpy(), but this might overflow
the fixed string size.  Let's use strlcpy().

Spotted by coverity CID 139008.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/core/init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/core/init.c b/sound/core/init.c
index 01a89383a062..1351f22f651c 100644
--- a/sound/core/init.c
+++ b/sound/core/init.c
@@ -597,7 +597,7 @@ static void snd_card_set_id_no_lock(struct snd_card *card, const char *src,
 	/* last resort... */
 	snd_printk(KERN_ERR "unable to set card id (%s)\n", id);
 	if (card->proc_root->name)
-		strcpy(card->id, card->proc_root->name);
+		strlcpy(card->id, card->proc_root->name, sizeof(card->id));
 }
 
 /**
-- 
cgit 


From 57a4451d26eef4ccbf3b32fd116295f001c18cb4 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 29 Oct 2013 15:26:12 +0100
Subject: ALSA: Use strlcpy() instead of strncpy()

We tend to make stupid mistakes with strncpy().  Let's take a safer
one, strlcpy().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/arm/pxa2xx-ac97.c                  | 2 +-
 sound/i2c/other/ak4xxx-adda.c            | 2 +-
 sound/pci/cs5535audio/cs5535audio_olpc.c | 4 ++--
 sound/pci/ice1712/psc724.c               | 4 ++--
 sound/pci/ice1712/wm8776.c               | 2 +-
 sound/pci/rme9652/hdspm.c                | 2 +-
 6 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/sound/arm/pxa2xx-ac97.c b/sound/arm/pxa2xx-ac97.c
index 5066a3768b28..9a2ac1e0f77a 100644
--- a/sound/arm/pxa2xx-ac97.c
+++ b/sound/arm/pxa2xx-ac97.c
@@ -185,7 +185,7 @@ static int pxa2xx_ac97_probe(struct platform_device *dev)
 		goto err;
 
 	card->dev = &dev->dev;
-	strncpy(card->driver, dev->dev.driver->name, sizeof(card->driver));
+	strlcpy(card->driver, dev->dev.driver->name, sizeof(card->driver));
 
 	ret = pxa2xx_pcm_new(card, &pxa2xx_ac97_pcm_client, &pxa2xx_ac97_pcm);
 	if (ret)
diff --git a/sound/i2c/other/ak4xxx-adda.c b/sound/i2c/other/ak4xxx-adda.c
index ed726d1569e8..f3735e64791c 100644
--- a/sound/i2c/other/ak4xxx-adda.c
+++ b/sound/i2c/other/ak4xxx-adda.c
@@ -583,7 +583,7 @@ static int ak4xxx_capture_source_info(struct snd_kcontrol *kcontrol,
 	if (idx >= num_names)
 		return -EINVAL;
 	input_names = ak->adc_info[mixer_ch].input_names;
-	strncpy(uinfo->value.enumerated.name, input_names[idx],
+	strlcpy(uinfo->value.enumerated.name, input_names[idx],
 		sizeof(uinfo->value.enumerated.name));
 	return 0;
 }
diff --git a/sound/pci/cs5535audio/cs5535audio_olpc.c b/sound/pci/cs5535audio/cs5535audio_olpc.c
index da1cb9c4c76c..e6a44507d557 100644
--- a/sound/pci/cs5535audio/cs5535audio_olpc.c
+++ b/sound/pci/cs5535audio/cs5535audio_olpc.c
@@ -161,13 +161,13 @@ int olpc_quirks(struct snd_card *card, struct snd_ac97 *ac97)
 	/* drop the original AD1888 HPF control */
 	memset(&elem, 0, sizeof(elem));
 	elem.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
-	strncpy(elem.name, "High Pass Filter Enable", sizeof(elem.name));
+	strlcpy(elem.name, "High Pass Filter Enable", sizeof(elem.name));
 	snd_ctl_remove_id(card, &elem);
 
 	/* drop the original V_REFOUT control */
 	memset(&elem, 0, sizeof(elem));
 	elem.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
-	strncpy(elem.name, "V_REFOUT Enable", sizeof(elem.name));
+	strlcpy(elem.name, "V_REFOUT Enable", sizeof(elem.name));
 	snd_ctl_remove_id(card, &elem);
 
 	/* add the OLPC-specific controls */
diff --git a/sound/pci/ice1712/psc724.c b/sound/pci/ice1712/psc724.c
index 302ac6ddd545..4019cf27d117 100644
--- a/sound/pci/ice1712/psc724.c
+++ b/sound/pci/ice1712/psc724.c
@@ -203,12 +203,12 @@ static void psc724_set_jack_state(struct snd_ice1712 *ice, bool hp_connected)
 	/* notify about master speaker mute change */
 	memset(&elem_id, 0, sizeof(elem_id));
 	elem_id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
-	strncpy(elem_id.name, "Master Speakers Playback Switch",
+	strlcpy(elem_id.name, "Master Speakers Playback Switch",
 						sizeof(elem_id.name));
 	kctl = snd_ctl_find_id(ice->card, &elem_id);
 	snd_ctl_notify(ice->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
 	/* and headphone mute change */
-	strncpy(elem_id.name, spec->wm8776.ctl[WM8776_CTL_HP_SW].name,
+	strlcpy(elem_id.name, spec->wm8776.ctl[WM8776_CTL_HP_SW].name,
 						sizeof(elem_id.name));
 	kctl = snd_ctl_find_id(ice->card, &elem_id);
 	snd_ctl_notify(ice->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
diff --git a/sound/pci/ice1712/wm8776.c b/sound/pci/ice1712/wm8776.c
index a3c05fe5daf9..5227cb08247f 100644
--- a/sound/pci/ice1712/wm8776.c
+++ b/sound/pci/ice1712/wm8776.c
@@ -52,7 +52,7 @@ static void snd_wm8776_activate_ctl(struct snd_wm8776 *wm,
 	unsigned int index_offset;
 
 	memset(&elem_id, 0, sizeof(elem_id));
-	strncpy(elem_id.name, ctl_name, sizeof(elem_id.name));
+	strlcpy(elem_id.name, ctl_name, sizeof(elem_id.name));
 	elem_id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 	kctl = snd_ctl_find_id(card, &elem_id);
 	if (!kctl)
diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
index 2907e68150cb..e98dc008de0b 100644
--- a/sound/pci/rme9652/hdspm.c
+++ b/sound/pci/rme9652/hdspm.c
@@ -6400,7 +6400,7 @@ static int snd_hdspm_hwdep_ioctl(struct snd_hwdep *hw, struct file *file,
 		memset(&hdspm_version, 0, sizeof(hdspm_version));
 
 		hdspm_version.card_type = hdspm->io_type;
-		strncpy(hdspm_version.cardname, hdspm->card_name,
+		strlcpy(hdspm_version.cardname, hdspm->card_name,
 				sizeof(hdspm_version.cardname));
 		hdspm_version.serial = hdspm->serial;
 		hdspm_version.firmware_rev = hdspm->firmware_rev;
-- 
cgit 


From 9bd0f5c042e218c0573e730d181287abecd6b18b Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 29 Oct 2013 15:39:37 +0100
Subject: ALSA: ad1889: Fix right attenuation proc output

The right attenuation bits aren't needed to be shifted.

Spotted by coverity CID 11427.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/ad1889.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/ad1889.c b/sound/pci/ad1889.c
index d2b9d617aee5..b680d03e2419 100644
--- a/sound/pci/ad1889.c
+++ b/sound/pci/ad1889.c
@@ -739,7 +739,7 @@ snd_ad1889_proc_read(struct snd_info_entry *entry, struct snd_info_buffer *buffe
 	reg = ad1889_readw(chip, AD_DS_WADA);
 	snd_iprintf(buffer, "Right: %s, -%d dB\n",
 			(reg & AD_DS_WADA_RWAM) ? "mute" : "unmute",
-			((reg & AD_DS_WADA_RWAA) >> 8) * 3);
+			(reg & AD_DS_WADA_RWAA) * 3);
 	
 	reg = ad1889_readw(chip, AD_DS_WAS);
 	snd_iprintf(buffer, "Wave samplerate: %u Hz\n", reg);
-- 
cgit 


From 329bbd9ba738b85675151b82260cd08bdd765de2 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 29 Oct 2013 15:42:29 +0100
Subject: ALSA: ali5451: Drop unused variable

The variable runtime is never used, and this might be even a source of
NULL-dereference.  Nothing better than killing it.

Spotted by coverity CID 100862.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/ali5451/ali5451.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/sound/pci/ali5451/ali5451.c b/sound/pci/ali5451/ali5451.c
index 3dfa12b670eb..c6835a3d64fb 100644
--- a/sound/pci/ali5451/ali5451.c
+++ b/sound/pci/ali5451/ali5451.c
@@ -855,7 +855,6 @@ static void snd_ali_disable_spdif_out(struct snd_ali *codec)
 static void snd_ali_update_ptr(struct snd_ali *codec, int channel)
 {
 	struct snd_ali_voice *pvoice;
-	struct snd_pcm_runtime *runtime;
 	struct snd_ali_channel_control *pchregs;
 	unsigned int old, mask;
 #ifdef ALI_DEBUG
@@ -872,7 +871,6 @@ static void snd_ali_update_ptr(struct snd_ali *codec, int channel)
 		return;
 
 	pvoice = &codec->synth.voices[channel];
-	runtime = pvoice->substream->runtime;
 
 	udelay(100);
 	spin_lock(&codec->reg_lock);
-- 
cgit 


From 2026d24ef2ea8caad5e87662a58075e930ccab63 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 29 Oct 2013 16:04:37 +0100
Subject: ALSA: rme96: Return error code in PCM copy ops

Just pass the error code returned from copy_from_user_toio() and
copy_to_user_fromio() helpers.

Spotted by coverity CID 114119.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/rme96.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/sound/pci/rme96.c b/sound/pci/rme96.c
index bb9ebc5543d7..0236363c301f 100644
--- a/sound/pci/rme96.c
+++ b/sound/pci/rme96.c
@@ -350,9 +350,8 @@ snd_rme96_playback_copy(struct snd_pcm_substream *substream,
 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
 	count <<= rme96->playback_frlog;
 	pos <<= rme96->playback_frlog;
-	copy_from_user_toio(rme96->iobase + RME96_IO_PLAY_BUFFER + pos, src,
-			    count);
-	return 0;
+	return copy_from_user_toio(rme96->iobase + RME96_IO_PLAY_BUFFER + pos, src,
+				   count);
 }
 
 static int
@@ -365,9 +364,8 @@ snd_rme96_capture_copy(struct snd_pcm_substream *substream,
 	struct rme96 *rme96 = snd_pcm_substream_chip(substream);
 	count <<= rme96->capture_frlog;
 	pos <<= rme96->capture_frlog;
-	copy_to_user_fromio(dst, rme96->iobase + RME96_IO_REC_BUFFER + pos,
-			    count);
-        return 0;
+	return copy_to_user_fromio(dst, rme96->iobase + RME96_IO_REC_BUFFER + pos,
+				   count);
 }
 
 /*
-- 
cgit 


From aaeb94c93ca6de2da1901a6ca97693672ab3458c Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Tue, 29 Oct 2013 08:01:50 -0700
Subject: staging: ft1000: function request_code_segment extracted

function scram_dnldr in ft1000_download.c is very long and contains many
coding style errors and best practice violations. It consists of nested
switch statements inside a while loop. One of the inner switch cases has
been extracted as a helper function. Also, some style errors (such as
C99 comments) have been fixed, an assignment to an unread variable has
been removed, and break statements inside ifs have been converted to
returns.

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../staging/ft1000/ft1000-usb/ft1000_download.c    | 67 +++++++++++-----------
 1 file changed, 32 insertions(+), 35 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index 4ac92eea3896..eeceb5355a99 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -575,6 +575,34 @@ static int scram_start_dwnld(struct ft1000_usb *ft1000dev, u16 *hshake,
 	return status;
 }
 
+static u16 request_code_segment(struct ft1000_usb *ft1000dev, u16 **s_file,
+		 u8 **c_file, const u8 *boot_end)
+{
+	long word_length;
+	u16 status;
+
+	/*DEBUG("FT1000:REQUEST_CODE_SEGMENT\n");i*/
+	word_length = get_request_value(ft1000dev);
+	/*DEBUG("FT1000:word_length = 0x%x\n", (int)word_length); */
+	/*NdisMSleep (100); */
+	if (word_length > MAX_LENGTH) {
+		DEBUG("FT1000:download:Download error: Max length exceeded\n");
+		return STATUS_FAILURE;
+	}
+	if ((word_length * 2 + (long)c_file) > (long)boot_end) {
+		/* Error, beyond boot code range.*/
+		DEBUG("FT1000:download:Download error: Requested len=%d exceeds BOOT code boundary.\n", (int)word_length);
+		return STATUS_FAILURE;
+	}
+	if (word_length & 0x1)
+		word_length++;
+	word_length = word_length / 2;
+	status = write_blk(ft1000dev, s_file, c_file, word_length);
+	/*DEBUG("write_blk returned %d\n", status); */
+
+	return status;
+}
+
 /* Scramble downloader for Harley based ASIC via USB interface */
 u16 scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 		u32 FileLength)
@@ -673,41 +701,10 @@ u16 scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 					ft1000dev->fcodeldr = 1;
 					break;
 				case REQUEST_CODE_SEGMENT:
-					//DEBUG("FT1000:REQUEST_CODE_SEGMENT\n");
-					word_length =
-					    get_request_value(ft1000dev);
-					//DEBUG("FT1000:word_length = 0x%x\n", (int)word_length);
-					//NdisMSleep (100);
-					if (word_length > MAX_LENGTH) {
-						DEBUG
-						    ("FT1000:download:Download error: Max length exceeded\n");
-						status = STATUS_FAILURE;
-						break;
-					}
-					if ((word_length * 2 + c_file) >
-					    boot_end) {
-						/*
-						 * Error, beyond boot code range.
-						 */
-						DEBUG
-						    ("FT1000:download:Download error: Requested len=%d exceeds BOOT code boundary.\n",
-						     (int)word_length);
-						status = STATUS_FAILURE;
-						break;
-					}
-					/*
-					 * Position ASIC DPRAM auto-increment pointer.
-					 */
-					dpram = (u16) DWNLD_MAG1_PS_HDR_LOC;
-					if (word_length & 0x1)
-						word_length++;
-					word_length = word_length / 2;
-
-					status =
-					    write_blk(ft1000dev, &s_file,
-						      &c_file, word_length);
-					//DEBUG("write_blk returned %d\n", status);
-					break;
+					status = request_code_segment(ft1000dev,
+							&s_file, &c_file,
+							(const u8 *)boot_end);
+				break;
 				default:
 					DEBUG
 					    ("FT1000:download:Download error: Bad request type=%d in BOOT download state.\n",
-- 
cgit 


From e0a223b465c609e2d03bea3551183e9a8ad2be81 Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Tue, 29 Oct 2013 08:05:23 -0700
Subject: staging: ft1000: duplicate code replaced with call to
 request_code_segment

function scram_dnldr, in ft1000_download.c, is very long and consists
mainly of nested switch statements inside a while loop. Some code in one
of the inner switch cases was almost identical to the code in the
previously extracted function request_code_segment. The duplicated code
was replaced with a call to request_code_segment, and
request_code_segment was slightly modified to work in both cases.

A new parameter was added to request_code_segment, a bool to distinguish
which case it was replacing. The name of an existing parameter (now
called endpoint) was changed to reflect the fact that it will be passed
in from more than one place. Several lines from the case containing the
duplicated code were moved to request_code_segment, and a test was added
to determine if these lines or a line from the original function should
be run.

Finally, an unused variable (tempword) was removed from scram_dnldr.

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../staging/ft1000/ft1000-usb/ft1000_download.c    | 64 +++++++---------------
 1 file changed, 19 insertions(+), 45 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index eeceb5355a99..afeafcdd517f 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -576,7 +576,7 @@ static int scram_start_dwnld(struct ft1000_usb *ft1000dev, u16 *hshake,
 }
 
 static u16 request_code_segment(struct ft1000_usb *ft1000dev, u16 **s_file,
-		 u8 **c_file, const u8 *boot_end)
+		 u8 **c_file, const u8 *endpoint, bool boot_case)
 {
 	long word_length;
 	u16 status;
@@ -589,7 +589,7 @@ static u16 request_code_segment(struct ft1000_usb *ft1000dev, u16 **s_file,
 		DEBUG("FT1000:download:Download error: Max length exceeded\n");
 		return STATUS_FAILURE;
 	}
-	if ((word_length * 2 + (long)c_file) > (long)boot_end) {
+	if ((word_length * 2 + (long)c_file) > (long)endpoint) {
 		/* Error, beyond boot code range.*/
 		DEBUG("FT1000:download:Download error: Requested len=%d exceeds BOOT code boundary.\n", (int)word_length);
 		return STATUS_FAILURE;
@@ -597,9 +597,18 @@ static u16 request_code_segment(struct ft1000_usb *ft1000dev, u16 **s_file,
 	if (word_length & 0x1)
 		word_length++;
 	word_length = word_length / 2;
-	status = write_blk(ft1000dev, s_file, c_file, word_length);
-	/*DEBUG("write_blk returned %d\n", status); */
 
+	if (boot_case) {
+		status = write_blk(ft1000dev, s_file, c_file, word_length);
+		/*DEBUG("write_blk returned %d\n", status); */
+	} else {
+		write_blk_fifo(ft1000dev, s_file, c_file, word_length);
+		if (ft1000dev->usbboot == 0)
+			ft1000dev->usbboot++;
+		if (ft1000dev->usbboot == 1)
+			ft1000_write_dpram16(ft1000dev,
+					DWNLD_MAG1_PS_HDR_LOC, 0, 0);
+	}
 	return status;
 }
 
@@ -615,7 +624,6 @@ u16 scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 	long word_length;
 	u16 request;
 	u16 temp;
-	u16 tempword;
 
 	struct dsp_file_hdr *file_hdr;
 	struct dsp_image_info *dsp_img_info = NULL;
@@ -703,7 +711,8 @@ u16 scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 				case REQUEST_CODE_SEGMENT:
 					status = request_code_segment(ft1000dev,
 							&s_file, &c_file,
-							(const u8 *)boot_end);
+							(const u8 *)boot_end,
+							true);
 				break;
 				default:
 					DEBUG
@@ -805,45 +814,10 @@ u16 scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 						break;
 					}
 
-					word_length =
-					    get_request_value(ft1000dev);
-					//DEBUG("FT1000:download:word_length = %d\n", (int)word_length);
-					if (word_length > MAX_LENGTH) {
-						DEBUG
-						    ("FT1000:download:Download error: Max length exceeded\n");
-						status = STATUS_FAILURE;
-						break;
-					}
-					if ((word_length * 2 + c_file) >
-					    code_end) {
-						/*
-						 * Error, beyond boot code range.
-						 */
-						DEBUG
-						    ("FT1000:download:Download error: Requested len=%d exceeds DSP code boundary.\n",
-						     (int)word_length);
-						status = STATUS_FAILURE;
-						break;
-					}
-					/*
-					 * Position ASIC DPRAM auto-increment pointer.
-					 */
-					dpram = (u16) DWNLD_MAG1_PS_HDR_LOC;
-					if (word_length & 0x1)
-						word_length++;
-					word_length = word_length / 2;
-
-					write_blk_fifo(ft1000dev, &s_file,
-						       &c_file, word_length);
-					if (ft1000dev->usbboot == 0)
-						ft1000dev->usbboot++;
-					if (ft1000dev->usbboot == 1) {
-						tempword = 0;
-						ft1000_write_dpram16(ft1000dev,
-								     DWNLD_MAG1_PS_HDR_LOC,
-								     tempword,
-								     0);
-					}
+					status = request_code_segment(ft1000dev,
+							&s_file, &c_file,
+							(const u8 *)code_end,
+							false);
 
 					break;
 
-- 
cgit 


From eb2ec63979702f04d45f608f635b0533defefa16 Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Tue, 29 Oct 2013 08:06:56 -0700
Subject: staging: ft1000: function write_dpram32_and_check extracted from
 write_blk

function write_blk is long and overly complex, consisting of a triply
nested loop. It also has improper indentation and line lengths
throughout, and has return type of u32 rather than int. Some of the
lines, when converted to proper indentation, create checkpatch warnings
for too many leading tabs.

This patch extracts the innermost loop into its own function,
write_dpram32_and_check. This removes several levels of indentation from
the extracted lines and makes the original function simpler. Two local
variables from the original function, u16 resultbuffer[] and a loop
counter, have been made local variables of the new function. Two calls
to msleep() have been replaced with usleep_range() as per Documentation/
timers/timers-howto.txt (which was referred to in a checkpatch warning).
Several other style issues in the extracted code have been corrected as
well.

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../staging/ft1000/ft1000-usb/ft1000_download.c    | 107 +++++++++++----------
 1 file changed, 58 insertions(+), 49 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index afeafcdd517f..e5281b97775b 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -389,6 +389,61 @@ static int check_buffers(u16 *buff_w, u16 *buff_r, int len, int offset)
 	return 0;
 }
 
+static int write_dpram32_and_check(struct ft1000_usb *ft1000dev,
+		u16 tempbuffer[], u16 dpram)
+{
+	int status;
+	u16 resultbuffer[64];
+	int i;
+
+	for (i = 0; i < 10; i++) {
+		status = ft1000_write_dpram32(ft1000dev, dpram,
+				(u8 *)&tempbuffer[0], 64);
+		if (status == STATUS_SUCCESS) {
+			/* Work around for ASIC bit stuffing problem. */
+			if ((tempbuffer[31] & 0xfe00) == 0xfe00) {
+				status = ft1000_write_dpram32(ft1000dev,
+						dpram+12, (u8 *)&tempbuffer[24],
+						64);
+			}
+			/* Let's check the data written */
+			status = ft1000_read_dpram32(ft1000dev, dpram,
+					(u8 *)&resultbuffer[0], 64);
+			if ((tempbuffer[31] & 0xfe00) == 0xfe00) {
+				if (check_buffers(tempbuffer, resultbuffer, 28,
+							0)) {
+					DEBUG("FT1000:download:DPRAM write failed 1 during bootloading\n");
+					usleep_range(9000, 11000);
+					status = STATUS_FAILURE;
+					break;
+				}
+				status = ft1000_read_dpram32(ft1000dev,
+						dpram+12,
+						(u8 *)&resultbuffer[0], 64);
+
+				if (check_buffers(tempbuffer, resultbuffer, 16,
+							24)) {
+					DEBUG("FT1000:download:DPRAM write failed 2 during bootloading\n");
+					usleep_range(9000, 11000);
+					status = STATUS_FAILURE;
+					break;
+				}
+			} else {
+				if (check_buffers(tempbuffer, resultbuffer, 32,
+							0)) {
+					DEBUG("FT1000:download:DPRAM write failed 3 during bootloading\n");
+					usleep_range(9000, 11000);
+					status = STATUS_FAILURE;
+					break;
+				}
+			}
+			if (status == STATUS_SUCCESS)
+				break;
+		}
+	}
+	return status;
+}
+
 /* writes a block of DSP image to DPRAM
  * Parameters:  struct ft1000_usb  - device structure
  *              u16 **pUsFile - DSP image file pointer in u16
@@ -399,10 +454,9 @@ static u32 write_blk (struct ft1000_usb *ft1000dev, u16 **pUsFile, u8 **pUcFile,
 {
    u32 Status = STATUS_SUCCESS;
    u16 dpram;
-   int loopcnt, i, j;
+   int loopcnt, i;
    u16 tempword;
    u16 tempbuffer[64];
-   u16 resultbuffer[64];
 
    //DEBUG("FT1000:download:start word_length = %d\n",(int)word_length);
    dpram = (u16)DWNLD_MAG1_PS_HDR_LOC;
@@ -452,53 +506,8 @@ static u32 write_blk (struct ft1000_usb *ft1000dev, u16 **pUsFile, u8 **pUcFile,
 	      }
 	      else
 	      {
-                 for (j=0; j<10; j++)
-                 {
-                   Status = ft1000_write_dpram32 (ft1000dev, dpram, (u8 *)&tempbuffer[0], 64);
-		   if (Status == STATUS_SUCCESS)
-		   {
-		       // Work around for ASIC bit stuffing problem.
-		       if ( (tempbuffer[31] & 0xfe00) == 0xfe00)
-		       {
-      		           Status = ft1000_write_dpram32(ft1000dev, dpram+12, (u8 *)&tempbuffer[24], 64);
-		       }
-    		       // Let's check the data written
-	    	       Status = ft1000_read_dpram32 (ft1000dev, dpram, (u8 *)&resultbuffer[0], 64);
-		       if ( (tempbuffer[31] & 0xfe00) == 0xfe00)
-		       {
-				if (check_buffers(tempbuffer, resultbuffer, 28, 0)) {
-					DEBUG("FT1000:download:DPRAM write failed 1 during bootloading\n");
-					msleep(10);
-					Status = STATUS_FAILURE;
-					break;
-				}
-   			   Status = ft1000_read_dpram32 (ft1000dev, dpram+12, (u8 *)&resultbuffer[0], 64);
-
-				if (check_buffers(tempbuffer, resultbuffer, 16, 24)) {
-					DEBUG("FT1000:download:DPRAM write failed 2 during bootloading\n");
-					msleep(10);
-					Status = STATUS_FAILURE;
-					break;
-				}
-			   
-			}
-			else
-			{
-				if (check_buffers(tempbuffer, resultbuffer, 32, 0)) {
-					DEBUG("FT1000:download:DPRAM write failed 3 during bootloading\n");
-					msleep(10);
-					Status = STATUS_FAILURE;
-					break;
-				}
-			    
-			}
-
-			if (Status == STATUS_SUCCESS)
-			    break;
-
-		    }
-		}
-
+		      Status = write_dpram32_and_check(ft1000dev, tempbuffer,
+				      dpram);
 		if (Status != STATUS_SUCCESS)
 		{
                     DEBUG("FT1000:download:Write failed tempbuffer[31] = 0x%x\n", tempbuffer[31]);
-- 
cgit 


From 74827f8dfa52103db66c32958f2844abbcec92c5 Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Tue, 29 Oct 2013 08:07:40 -0700
Subject: staging: ft1000: style issues fixed in write_blk

function write_blk, in ft1000_download.c, contains many coding style
issues. It has indentations of 3 spaces, long lines, C99 comments, and
extra whitespace. It also has a return type of u32, and changing the
returned variable in the function triggers a checkpatch leading spaces
warning. Indentation should be fixed throughout the file for
consistency.

This patch fixes those issues, in preparation for correcting the status
return type throughout the file. The variable Status has been changed
from u32 to int and renamed status.

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../staging/ft1000/ft1000-usb/ft1000_download.c    | 123 ++++++++++-----------
 1 file changed, 57 insertions(+), 66 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index e5281b97775b..57bd87b91e3c 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -450,75 +450,66 @@ static int write_dpram32_and_check(struct ft1000_usb *ft1000dev,
  *              u8  **pUcFile - DSP image file pointer in u8
  *              long word_length - length of the buffer to be written to DPRAM
  */
-static u32 write_blk (struct ft1000_usb *ft1000dev, u16 **pUsFile, u8 **pUcFile, long word_length)
+static int write_blk(struct ft1000_usb *ft1000dev, u16 **pUsFile, u8 **pUcFile,
+		long word_length)
 {
-   u32 Status = STATUS_SUCCESS;
-   u16 dpram;
-   int loopcnt, i;
-   u16 tempword;
-   u16 tempbuffer[64];
-
-   //DEBUG("FT1000:download:start word_length = %d\n",(int)word_length);
-   dpram = (u16)DWNLD_MAG1_PS_HDR_LOC;
-   tempword = *(*pUsFile);
-   (*pUsFile)++;
-   Status = ft1000_write_dpram16(ft1000dev, dpram, tempword, 0);
-   tempword = *(*pUsFile);
-   (*pUsFile)++;
-   Status = ft1000_write_dpram16(ft1000dev, dpram++, tempword, 1);
-
-   *pUcFile = *pUcFile + 4;
-   word_length--;
-   tempword = (u16)word_length;
-   word_length = (word_length / 16) + 1;
-   for (; word_length > 0; word_length--) /* In words */
-   {
-	   loopcnt = 0;
-
-	      for (i=0; i<32; i++)
-	      {
-		       if (tempword != 0)
-		       {
-    		           tempbuffer[i++] = *(*pUsFile);
-			   (*pUsFile)++;
-   	    	           tempbuffer[i] = *(*pUsFile);
-			   (*pUsFile)++;
-			   *pUcFile = *pUcFile + 4;
-			   loopcnt++;
-			   tempword--;
-		       }
-		       else
-		       {
-			   tempbuffer[i++] = 0;
-			   tempbuffer[i] = 0;
-                       }
-	      }
-
-              //DEBUG("write_blk: loopcnt is %d\n", loopcnt);
-              //DEBUG("write_blk: bootmode = %d\n", bootmode);
-              //DEBUG("write_blk: dpram = %x\n", dpram);
-	      if (ft1000dev->bootmode == 0)
-	      {
-		 if (dpram >= 0x3F4)
-                     Status = ft1000_write_dpram32 (ft1000dev, dpram, (u8 *)&tempbuffer[0], 8);
-	         else
-                    Status = ft1000_write_dpram32 (ft1000dev, dpram, (u8 *)&tempbuffer[0], 64);
-	      }
-	      else
-	      {
-		      Status = write_dpram32_and_check(ft1000dev, tempbuffer,
-				      dpram);
-		if (Status != STATUS_SUCCESS)
-		{
-                    DEBUG("FT1000:download:Write failed tempbuffer[31] = 0x%x\n", tempbuffer[31]);
-		    break;
+	int status = STATUS_SUCCESS;
+	u16 dpram;
+	int loopcnt, i;
+	u16 tempword;
+	u16 tempbuffer[64];
+
+	/*DEBUG("FT1000:download:start word_length = %d\n",(int)word_length); */
+	dpram = (u16)DWNLD_MAG1_PS_HDR_LOC;
+	tempword = *(*pUsFile);
+	(*pUsFile)++;
+	status = ft1000_write_dpram16(ft1000dev, dpram, tempword, 0);
+	tempword = *(*pUsFile);
+	(*pUsFile)++;
+	status = ft1000_write_dpram16(ft1000dev, dpram++, tempword, 1);
+
+	*pUcFile = *pUcFile + 4;
+	word_length--;
+	tempword = (u16)word_length;
+	word_length = (word_length / 16) + 1;
+	for (; word_length > 0; word_length--) { /* In words */
+		loopcnt = 0;
+		for (i = 0; i < 32; i++) {
+			if (tempword != 0) {
+				tempbuffer[i++] = *(*pUsFile);
+				(*pUsFile)++;
+				tempbuffer[i] = *(*pUsFile);
+				(*pUsFile)++;
+				*pUcFile = *pUcFile + 4;
+				loopcnt++;
+				tempword--;
+			} else {
+				tempbuffer[i++] = 0;
+				tempbuffer[i] = 0;
+			}
 		}
 
-	     }
-   	     dpram = dpram + loopcnt;
-   }
-
-   return Status;
+		/*DEBUG("write_blk: loopcnt is %d\n", loopcnt); */
+		/*DEBUG("write_blk: bootmode = %d\n", bootmode); */
+		/*DEBUG("write_blk: dpram = %x\n", dpram); */
+		if (ft1000dev->bootmode == 0) {
+			if (dpram >= 0x3F4)
+				status = ft1000_write_dpram32(ft1000dev, dpram,
+						(u8 *)&tempbuffer[0], 8);
+			else
+				status = ft1000_write_dpram32(ft1000dev, dpram,
+						(u8 *)&tempbuffer[0], 64);
+		} else {
+			status = write_dpram32_and_check(ft1000dev, tempbuffer,
+					dpram);
+			if (status != STATUS_SUCCESS) {
+				DEBUG("FT1000:download:Write failed tempbuffer[31] = 0x%x\n", tempbuffer[31]);
+				break;
+			}
+		}
+		dpram = dpram + loopcnt;
+	}
+	return status;
 }
 
 static void usb_dnld_complete (struct urb *urb)
-- 
cgit 


From 8cf9ff570b73273c6439ade681466c87199a8104 Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Tue, 29 Oct 2013 08:08:06 -0700
Subject: staging: ft1000: status variables changed to int in ft1000_download.c

Linux uses a return type of int for status codes. The file
ft1000_download.c uses a mixture of u16 and u32. This patch changes all
variables called status or Status to ints, whether they are returned
from the function or not. It also changes the return type of all
functions returning one of the variables to correspond. Also, the
declaration of scram_dnldr has been changed in ft1000_usb.h.

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 .../staging/ft1000/ft1000-usb/ft1000_download.c    | 30 +++++++++++-----------
 drivers/staging/ft1000/ft1000-usb/ft1000_usb.h     |  2 +-
 2 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index 57bd87b91e3c..605156852b44 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -108,11 +108,11 @@ struct dsp_image_info {
 
 
 /* checks if the doorbell register is cleared */
-static u32 check_usb_db(struct ft1000_usb *ft1000dev)
+static int check_usb_db(struct ft1000_usb *ft1000dev)
 {
 	int loopcnt;
 	u16 temp;
-	u32 status;
+	int status;
 
 	loopcnt = 0;
 
@@ -159,7 +159,7 @@ static u16 get_handshake(struct ft1000_usb *ft1000dev, u16 expected_value)
 {
 	u16 handshake;
 	int loopcnt;
-	u32 status = 0;
+	int status = 0;
 
 	loopcnt = 0;
 
@@ -206,7 +206,7 @@ static void put_handshake(struct ft1000_usb *ft1000dev,u16 handshake_value)
 {
 	u32 tempx;
 	u16 tempword;
-	u32 status;
+	int status;
 
 	tempx = (u32)handshake_value;
 	tempx = ntohl(tempx);
@@ -226,7 +226,7 @@ static u16 get_handshake_usb(struct ft1000_usb *ft1000dev, u16 expected_value)
 	u16 handshake;
 	int loopcnt;
 	u16 temp;
-	u32 status = 0;
+	int status = 0;
 
 	loopcnt = 0;
 	handshake = 0;
@@ -278,7 +278,7 @@ static void put_handshake_usb(struct ft1000_usb *ft1000dev,u16 handshake_value)
 static u16 get_request_type(struct ft1000_usb *ft1000dev)
 {
 	u16 request_type;
-	u32 status;
+	int status;
 	u16 tempword;
 	u32 tempx;
 
@@ -301,7 +301,7 @@ static u16 get_request_type(struct ft1000_usb *ft1000dev)
 static u16 get_request_type_usb(struct ft1000_usb *ft1000dev)
 {
 	u16 request_type;
-	u32 status;
+	int status;
 	u16 tempword;
 	u32 tempx;
 
@@ -331,7 +331,7 @@ static long get_request_value(struct ft1000_usb *ft1000dev)
 {
 	u32 value;
 	u16 tempword;
-	u32 status;
+	int status;
 
 	if (ft1000dev->bootmode == 1) {
 		status = fix_ft1000_read_dpram32(ft1000dev,
@@ -355,7 +355,7 @@ static long get_request_value(struct ft1000_usb *ft1000dev)
 static void put_request_value(struct ft1000_usb *ft1000dev, long lvalue)
 {
 	u32    tempx;
-	u32    status;
+	int    status;
 
 	tempx = ntohl(lvalue);
 	status = fix_ft1000_write_dpram32(ft1000dev, DWNLD_MAG1_SIZE_LOC,
@@ -523,10 +523,10 @@ static void usb_dnld_complete (struct urb *urb)
  *              u8  **pUcFile - DSP image file pointer in u8
  *              long word_length - length of the buffer to be written to DPRAM
  */
-static u32 write_blk_fifo(struct ft1000_usb *ft1000dev, u16 **pUsFile,
+static int write_blk_fifo(struct ft1000_usb *ft1000dev, u16 **pUsFile,
 			  u8 **pUcFile, long word_length)
 {
-	u32 Status = STATUS_SUCCESS;
+	int Status = STATUS_SUCCESS;
 	int byte_length;
 
 	byte_length = word_length * 4;
@@ -575,11 +575,11 @@ static int scram_start_dwnld(struct ft1000_usb *ft1000dev, u16 *hshake,
 	return status;
 }
 
-static u16 request_code_segment(struct ft1000_usb *ft1000dev, u16 **s_file,
+static int request_code_segment(struct ft1000_usb *ft1000dev, u16 **s_file,
 		 u8 **c_file, const u8 *endpoint, bool boot_case)
 {
 	long word_length;
-	u16 status;
+	int status;
 
 	/*DEBUG("FT1000:REQUEST_CODE_SEGMENT\n");i*/
 	word_length = get_request_value(ft1000dev);
@@ -613,10 +613,10 @@ static u16 request_code_segment(struct ft1000_usb *ft1000dev, u16 **s_file,
 }
 
 /* Scramble downloader for Harley based ASIC via USB interface */
-u16 scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
+int scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 		u32 FileLength)
 {
-	u16 status = STATUS_SUCCESS;
+	int status = STATUS_SUCCESS;
 	u32 state;
 	u16 handshake;
 	struct pseudo_hdr *pseudo_header;
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_usb.h b/drivers/staging/ft1000/ft1000-usb/ft1000_usb.h
index bd1da1f19cd2..e8d00a930dc6 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_usb.h
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_usb.h
@@ -125,7 +125,7 @@ extern size_t FileLength;
 extern int numofmsgbuf;
 
 int ft1000_close(struct net_device *dev);
-u16 scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
+int scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 		u32  FileLength);
 
 extern struct list_head freercvpool;
-- 
cgit 


From f0c80e4e1cd00dfaff98be961bcf28f504d628dc Mon Sep 17 00:00:00 2001
From: Teodora Baluta <teobaluta@gmail.com>
Date: Tue, 29 Oct 2013 00:09:18 +0200
Subject: staging: comedi: use memdup_user to simplify code

Use memdup_user rather than duplicating implementation. Fix following
coccinelle warnings:

drivers/staging/comedi/comedi_fops.c:1425:5-12: WARNING opportunity for memdup_user
drivers/staging/comedi/comedi_fops.c:1553:6-13: WARNING opportunity for memdup_user

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/comedi_fops.c | 33 ++++++++++-----------------------
 1 file changed, 10 insertions(+), 23 deletions(-)

diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index 721df313f8df..f3d59e2a1152 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -1421,17 +1421,11 @@ static int do_cmd_ioctl(struct comedi_device *dev,
 	async->cmd = cmd;
 	async->cmd.data = NULL;
 	/* load channel/gain list */
-	async->cmd.chanlist =
-	    kmalloc(async->cmd.chanlist_len * sizeof(int), GFP_KERNEL);
-	if (!async->cmd.chanlist) {
-		DPRINTK("allocation failed\n");
-		return -ENOMEM;
-	}
-
-	if (copy_from_user(async->cmd.chanlist, user_chanlist,
-			   async->cmd.chanlist_len * sizeof(int))) {
-		DPRINTK("fault reading chanlist\n");
-		ret = -EFAULT;
+	async->cmd.chanlist = memdup_user(user_chanlist,
+					  async->cmd.chanlist_len * sizeof(int));
+	if (IS_ERR(async->cmd.chanlist)) {
+		ret = PTR_ERR(async->cmd.chanlist);
+		DPRINTK("memdup_user failed with code %d\n", ret);
 		goto cleanup;
 	}
 
@@ -1549,18 +1543,11 @@ static int do_cmdtest_ioctl(struct comedi_device *dev,
 
 	/* load channel/gain list */
 	if (cmd.chanlist) {
-		chanlist =
-		    kmalloc(cmd.chanlist_len * sizeof(int), GFP_KERNEL);
-		if (!chanlist) {
-			DPRINTK("allocation failed\n");
-			ret = -ENOMEM;
-			goto cleanup;
-		}
-
-		if (copy_from_user(chanlist, user_chanlist,
-				   cmd.chanlist_len * sizeof(int))) {
-			DPRINTK("fault reading chanlist\n");
-			ret = -EFAULT;
+		chanlist = memdup_user(user_chanlist,
+				       cmd.chanlist_len * sizeof(int));
+		if (IS_ERR(chanlist)) {
+			ret = PTR_ERR(chanlist);
+			DPRINTK("memdup_user exited with code %d", ret);
 			goto cleanup;
 		}
 
-- 
cgit 


From 06c789ed3b17b0e692d23cebae704476c682adab Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Tue, 29 Oct 2013 10:08:46 +0200
Subject: Staging: winbond: Fix Sparse Warnings in phy_calibration.c

This patch fixes Sparse Warnings "symbol was not
declared. Should it be static?" and "defined
but not used [-Wunused-function]" in
phy_calibration.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/winbond/phy_calibration.c | 315 ++----------------------------
 1 file changed, 16 insertions(+), 299 deletions(-)

diff --git a/drivers/staging/winbond/phy_calibration.c b/drivers/staging/winbond/phy_calibration.c
index d970660f6523..8aecced62dde 100644
--- a/drivers/staging/winbond/phy_calibration.c
+++ b/drivers/staging/winbond/phy_calibration.c
@@ -44,7 +44,7 @@ static const s32 Angles[] = {
 
 /****************** FUNCTION DEFINITION SECTION *****************************/
 
-s32 _s13_to_s32(u32 data)
+static s32 _s13_to_s32(u32 data)
 {
 	u32     val;
 
@@ -56,22 +56,8 @@ s32 _s13_to_s32(u32 data)
 	return (s32) val;
 }
 
-u32 _s32_to_s13(s32 data)
-{
-	u32     val;
-
-	if (data > 4095)
-		data = 4095;
-	else if (data < -4096)
-		data = -4096;
-
-	val = data & 0x1FFF;
-
-	return val;
-}
-
 /****************************************************************************/
-s32 _s4_to_s32(u32 data)
+static s32 _s4_to_s32(u32 data)
 {
 	s32     val;
 
@@ -83,7 +69,7 @@ s32 _s4_to_s32(u32 data)
 	return val;
 }
 
-u32 _s32_to_s4(s32 data)
+static u32 _s32_to_s4(s32 data)
 {
 	u32     val;
 
@@ -98,7 +84,7 @@ u32 _s32_to_s4(s32 data)
 }
 
 /****************************************************************************/
-s32 _s5_to_s32(u32 data)
+static s32 _s5_to_s32(u32 data)
 {
 	s32     val;
 
@@ -110,7 +96,7 @@ s32 _s5_to_s32(u32 data)
 	return val;
 }
 
-u32 _s32_to_s5(s32 data)
+static u32 _s32_to_s5(s32 data)
 {
 	u32     val;
 
@@ -125,7 +111,7 @@ u32 _s32_to_s5(s32 data)
 }
 
 /****************************************************************************/
-s32 _s6_to_s32(u32 data)
+static s32 _s6_to_s32(u32 data)
 {
 	s32     val;
 
@@ -137,7 +123,7 @@ s32 _s6_to_s32(u32 data)
 	return val;
 }
 
-u32 _s32_to_s6(s32 data)
+static u32 _s32_to_s6(s32 data)
 {
 	u32     val;
 
@@ -152,34 +138,7 @@ u32 _s32_to_s6(s32 data)
 }
 
 /****************************************************************************/
-s32 _s9_to_s32(u32 data)
-{
-	s32     val;
-
-	val = data & 0x00FF;
-
-	if ((data & BIT(8)) != 0)
-		val |= 0xFFFFFF00;
-
-	return val;
-}
-
-u32 _s32_to_s9(s32 data)
-{
-	u32     val;
-
-	if (data > 255)
-		data = 255;
-	else if (data < -256)
-		data = -256;
-
-	val = data & 0x01FF;
-
-	return val;
-}
-
-/****************************************************************************/
-s32 _floor(s32 n)
+static s32 _floor(s32 n)
 {
 	if (n > 0)
 		n += 5;
@@ -195,7 +154,7 @@ s32 _floor(s32 n)
  * sqsum is the input and the output is sq_rt;
  * The maximum of sqsum = 2^27 -1;
  */
-u32 _sqrt(u32 sqsum)
+static u32 _sqrt(u32 sqsum)
 {
 	u32     sq_rt;
 
@@ -263,7 +222,7 @@ u32 _sqrt(u32 sqsum)
 }
 
 /****************************************************************************/
-void _sin_cos(s32 angle, s32 *sin, s32 *cos)
+static void _sin_cos(s32 angle, s32 *sin, s32 *cos)
 {
 	s32 X, Y, TargetAngle, CurrAngle;
 	unsigned    Step;
@@ -320,7 +279,7 @@ static unsigned char hal_set_dxx_reg(struct hw_data *pHwData, u16 number,
 #define hw_set_dxx_reg(_A, _B, _C) hal_set_dxx_reg(_A, _B, (u32)_C)
 
 
-void _reset_rx_cal(struct hw_data *phw_data)
+static void _reset_rx_cal(struct hw_data *phw_data)
 {
 	u32     val;
 
@@ -340,7 +299,7 @@ void _reset_rx_cal(struct hw_data *phw_data)
 
 
 /**********************************************/
-void _rxadc_dc_offset_cancellation_winbond(struct hw_data *phw_data, u32 frequency)
+static void _rxadc_dc_offset_cancellation_winbond(struct hw_data *phw_data, u32 frequency)
 {
 	u32     reg_agc_ctrl3;
 	u32     reg_a_acq_ctrl;
@@ -435,250 +394,8 @@ void _rxadc_dc_offset_cancellation_winbond(struct hw_data *phw_data, u32 frequen
 	hw_set_dxx_reg(phw_data, REG_AGC_CTRL3, reg_agc_ctrl3);
 }
 
-/****************************************************************/
-void _txidac_dc_offset_cancellation_winbond(struct hw_data *phw_data)
-{
-	u32     reg_agc_ctrl3;
-	u32     reg_mode_ctrl;
-	u32     reg_dc_cancel;
-	s32     iqcal_image_i;
-	s32     iqcal_image_q;
-	u32     sqsum;
-	s32     mag_0;
-	s32     mag_1;
-	s32     fix_cancel_dc_i = 0;
-	u32     val;
-	int     loop;
-
-	PHY_DEBUG(("[CAL] -> [2]_txidac_dc_offset_cancellation()\n"));
-
-	/* a. Set to "TX calibration mode" */
-
-	/* 0x01 0xEE3FC2  ; 3B8FF  ; Calibration (6a). enable TX IQ calibration loop circuits */
-	phy_set_rf_data(phw_data, 1, (1<<24)|0xEE3FC2);
-	/* 0x0B 0x1905D6  ; 06417  ; Calibration (6b). enable TX I/Q cal loop squaring circuit */
-	phy_set_rf_data(phw_data, 11, (11<<24)|0x1901D6);
-	/* 0x05 0x24C60A  ; 09318  ; Calibration (6c). setting TX-VGA gain: TXGCH=2 & GPK=110 --> to be optimized */
-	phy_set_rf_data(phw_data, 5, (5<<24)|0x24C48A);
-	/* 0x06 0x06880C  ; 01A20  ; Calibration (6d). RXGCH=00; RXGCL=100 000 (RXVGA=32) --> to be optimized */
-	phy_set_rf_data(phw_data, 6, (6<<24)|0x06890C);
-	/* 0x00 0xFDF1C0  ; 3F7C7  ; Calibration (6e). turn on IQ imbalance/Test mode */
-	phy_set_rf_data(phw_data, 0, (0<<24)|0xFDF1C0);
-
-	hw_set_dxx_reg(phw_data, 0x58, 0x30303030); /* IQ_Alpha Changed */
-
-	/* a. Disable AGC */
-	hw_get_dxx_reg(phw_data, REG_AGC_CTRL3, &reg_agc_ctrl3);
-	reg_agc_ctrl3 &= ~BIT(2);
-	reg_agc_ctrl3 |= (MASK_LNA_FIX_GAIN|MASK_AGC_FIX);
-	hw_set_dxx_reg(phw_data, REG_AGC_CTRL3, reg_agc_ctrl3);
-
-	hw_get_dxx_reg(phw_data, REG_AGC_CTRL5, &val);
-	val |= MASK_AGC_FIX_GAIN;
-	hw_set_dxx_reg(phw_data, REG_AGC_CTRL5, val);
-
-	/* b. set iqcal_mode[1:0] to 0x2 and set iqcal_tone[3:2] to 0 */
-	hw_get_dxx_reg(phw_data, REG_MODE_CTRL, &reg_mode_ctrl);
-
-	PHY_DEBUG(("[CAL]    MODE_CTRL (read) = 0x%08X\n", reg_mode_ctrl));
-	reg_mode_ctrl &= ~(MASK_IQCAL_TONE_SEL|MASK_IQCAL_MODE);
-
-	/* mode=2, tone=0 */
-	/* reg_mode_ctrl |= (MASK_CALIB_START|2); */
-
-	/* mode=2, tone=1 */
-	/* reg_mode_ctrl |= (MASK_CALIB_START|2|(1<<2)); */
-
-	/* mode=2, tone=2 */
-	reg_mode_ctrl |= (MASK_CALIB_START|2|(2<<2));
-	hw_set_dxx_reg(phw_data, REG_MODE_CTRL, reg_mode_ctrl);
-	PHY_DEBUG(("[CAL]    MODE_CTRL (write) = 0x%08X\n", reg_mode_ctrl));
-
-	hw_get_dxx_reg(phw_data, 0x5C, &reg_dc_cancel);
-	PHY_DEBUG(("[CAL]    DC_CANCEL (read) = 0x%08X\n", reg_dc_cancel));
-
-	for (loop = 0; loop < LOOP_TIMES; loop++) {
-		PHY_DEBUG(("[CAL] [%d.] ==================================\n", loop));
-
-		/* c. reset cancel_dc_i[9:5] and cancel_dc_q[4:0] in register DC_Cancel */
-		reg_dc_cancel &= ~(0x03FF);
-		PHY_DEBUG(("[CAL]    DC_CANCEL (write) = 0x%08X\n", reg_dc_cancel));
-		hw_set_dxx_reg(phw_data, 0x5C, reg_dc_cancel);
-
-		hw_get_dxx_reg(phw_data, REG_CALIB_READ2, &val);
-		PHY_DEBUG(("[CAL]    CALIB_READ2 = 0x%08X\n", val));
-
-		iqcal_image_i = _s13_to_s32(val & 0x00001FFF);
-		iqcal_image_q = _s13_to_s32((val & 0x03FFE000) >> 13);
-		sqsum = iqcal_image_i*iqcal_image_i + iqcal_image_q*iqcal_image_q;
-		mag_0 = (s32) _sqrt(sqsum);
-		PHY_DEBUG(("[CAL]    mag_0=%d (iqcal_image_i=%d, iqcal_image_q=%d)\n",
-				   mag_0, iqcal_image_i, iqcal_image_q));
-
-		/* d. */
-		reg_dc_cancel |= (1 << CANCEL_DC_I_SHIFT);
-		PHY_DEBUG(("[CAL]    DC_CANCEL (write) = 0x%08X\n", reg_dc_cancel));
-		hw_set_dxx_reg(phw_data, 0x5C, reg_dc_cancel);
-
-		hw_get_dxx_reg(phw_data, REG_CALIB_READ2, &val);
-		PHY_DEBUG(("[CAL]    CALIB_READ2 = 0x%08X\n", val));
-
-		iqcal_image_i = _s13_to_s32(val & 0x00001FFF);
-		iqcal_image_q = _s13_to_s32((val & 0x03FFE000) >> 13);
-		sqsum = iqcal_image_i*iqcal_image_i + iqcal_image_q*iqcal_image_q;
-		mag_1 = (s32) _sqrt(sqsum);
-		PHY_DEBUG(("[CAL]    mag_1=%d (iqcal_image_i=%d, iqcal_image_q=%d)\n",
-				   mag_1, iqcal_image_i, iqcal_image_q));
-
-		/* e. Calculate the correct DC offset cancellation value for I */
-		if (mag_0 != mag_1)
-			fix_cancel_dc_i = (mag_0*10000) / (mag_0*10000 - mag_1*10000);
-		else {
-			if (mag_0 == mag_1)
-				PHY_DEBUG(("[CAL]   ***** mag_0 = mag_1 !!\n"));
-			fix_cancel_dc_i = 0;
-		}
-
-		PHY_DEBUG(("[CAL]    ** fix_cancel_dc_i = %d (0x%04X)\n",
-				   fix_cancel_dc_i,
-				   _s32_to_s5(fix_cancel_dc_i)));
-
-		if ((abs(mag_1-mag_0)*6) > mag_0)
-			break;
-	}
-
-	if (loop >= 19)
-		fix_cancel_dc_i = 0;
-
-	reg_dc_cancel &= ~(0x03FF);
-	reg_dc_cancel |= (_s32_to_s5(fix_cancel_dc_i) << CANCEL_DC_I_SHIFT);
-	hw_set_dxx_reg(phw_data, 0x5C, reg_dc_cancel);
-	PHY_DEBUG(("[CAL]    DC_CANCEL (write) = 0x%08X\n", reg_dc_cancel));
-
-	/* g. */
-	reg_mode_ctrl &= ~MASK_CALIB_START;
-	hw_set_dxx_reg(phw_data, REG_MODE_CTRL, reg_mode_ctrl);
-	PHY_DEBUG(("[CAL]    MODE_CTRL (write) = 0x%08X\n", reg_mode_ctrl));
-}
-
-/*****************************************************/
-void _txqdac_dc_offset_cacellation_winbond(struct hw_data *phw_data)
-{
-	u32     reg_agc_ctrl3;
-	u32     reg_mode_ctrl;
-	u32     reg_dc_cancel;
-	s32     iqcal_image_i;
-	s32     iqcal_image_q;
-	u32     sqsum;
-	s32     mag_0;
-	s32     mag_1;
-	s32     fix_cancel_dc_q = 0;
-	u32     val;
-	int     loop;
-
-	PHY_DEBUG(("[CAL] -> [3]_txqdac_dc_offset_cacellation()\n"));
-	/*0x01 0xEE3FC2  ; 3B8FF  ; Calibration (6a). enable TX IQ calibration loop circuits */
-	phy_set_rf_data(phw_data, 1, (1<<24)|0xEE3FC2);
-	/* 0x0B 0x1905D6  ; 06417  ; Calibration (6b). enable TX I/Q cal loop squaring circuit */
-	phy_set_rf_data(phw_data, 11, (11<<24)|0x1901D6);
-	/* 0x05 0x24C60A  ; 09318  ; Calibration (6c). setting TX-VGA gain: TXGCH=2 & GPK=110 --> to be optimized */
-	phy_set_rf_data(phw_data, 5, (5<<24)|0x24C48A);
-	/* 0x06 0x06880C  ; 01A20  ; Calibration (6d). RXGCH=00; RXGCL=100 000 (RXVGA=32) --> to be optimized */
-	phy_set_rf_data(phw_data, 6, (6<<24)|0x06890C);
-	/* 0x00 0xFDF1C0  ; 3F7C7  ; Calibration (6e). turn on IQ imbalance/Test mode */
-	phy_set_rf_data(phw_data, 0, (0<<24)|0xFDF1C0);
-
-	hw_set_dxx_reg(phw_data, 0x58, 0x30303030); /* IQ_Alpha Changed */
-
-	/* a. Disable AGC */
-	hw_get_dxx_reg(phw_data, REG_AGC_CTRL3, &reg_agc_ctrl3);
-	reg_agc_ctrl3 &= ~BIT(2);
-	reg_agc_ctrl3 |= (MASK_LNA_FIX_GAIN|MASK_AGC_FIX);
-	hw_set_dxx_reg(phw_data, REG_AGC_CTRL3, reg_agc_ctrl3);
-
-	hw_get_dxx_reg(phw_data, REG_AGC_CTRL5, &val);
-	val |= MASK_AGC_FIX_GAIN;
-	hw_set_dxx_reg(phw_data, REG_AGC_CTRL5, val);
-
-	/* a. set iqcal_mode[1:0] to 0x3 and set iqcal_tone[3:2] to 0 */
-	hw_get_dxx_reg(phw_data, REG_MODE_CTRL, &reg_mode_ctrl);
-	PHY_DEBUG(("[CAL]    MODE_CTRL (read) = 0x%08X\n", reg_mode_ctrl));
-
-	/* reg_mode_ctrl &= ~(MASK_IQCAL_TONE_SEL|MASK_IQCAL_MODE); */
-	reg_mode_ctrl &= ~(MASK_IQCAL_MODE);
-	reg_mode_ctrl |= (MASK_CALIB_START|3);
-	hw_set_dxx_reg(phw_data, REG_MODE_CTRL, reg_mode_ctrl);
-	PHY_DEBUG(("[CAL]    MODE_CTRL (write) = 0x%08X\n", reg_mode_ctrl));
-
-	hw_get_dxx_reg(phw_data, 0x5C, &reg_dc_cancel);
-	PHY_DEBUG(("[CAL]    DC_CANCEL (read) = 0x%08X\n", reg_dc_cancel));
-
-	for (loop = 0; loop < LOOP_TIMES; loop++) {
-		PHY_DEBUG(("[CAL] [%d.] ==================================\n", loop));
-
-		/* b. reset cancel_dc_q[4:0] in register DC_Cancel */
-		reg_dc_cancel &= ~(0x001F);
-		PHY_DEBUG(("[CAL]    DC_CANCEL (write) = 0x%08X\n", reg_dc_cancel));
-		hw_set_dxx_reg(phw_data, 0x5C, reg_dc_cancel);
-
-		hw_get_dxx_reg(phw_data, REG_CALIB_READ2, &val);
-		PHY_DEBUG(("[CAL]    CALIB_READ2 = 0x%08X\n", val));
-
-		iqcal_image_i = _s13_to_s32(val & 0x00001FFF);
-		iqcal_image_q = _s13_to_s32((val & 0x03FFE000) >> 13);
-		sqsum = iqcal_image_i*iqcal_image_i + iqcal_image_q*iqcal_image_q;
-		mag_0 = _sqrt(sqsum);
-		PHY_DEBUG(("[CAL]    mag_0=%d (iqcal_image_i=%d, iqcal_image_q=%d)\n",
-				   mag_0, iqcal_image_i, iqcal_image_q));
-
-		/* c. */
-		reg_dc_cancel |= (1 << CANCEL_DC_Q_SHIFT);
-		PHY_DEBUG(("[CAL]    DC_CANCEL (write) = 0x%08X\n", reg_dc_cancel));
-		hw_set_dxx_reg(phw_data, 0x5C, reg_dc_cancel);
-
-		hw_get_dxx_reg(phw_data, REG_CALIB_READ2, &val);
-		PHY_DEBUG(("[CAL]    CALIB_READ2 = 0x%08X\n", val));
-
-		iqcal_image_i = _s13_to_s32(val & 0x00001FFF);
-		iqcal_image_q = _s13_to_s32((val & 0x03FFE000) >> 13);
-		sqsum = iqcal_image_i*iqcal_image_i + iqcal_image_q*iqcal_image_q;
-		mag_1 = _sqrt(sqsum);
-		PHY_DEBUG(("[CAL]    mag_1=%d (iqcal_image_i=%d, iqcal_image_q=%d)\n",
-				   mag_1, iqcal_image_i, iqcal_image_q));
-
-		/* d. Calculate the correct DC offset cancellation value for I */
-		if (mag_0 != mag_1)
-			fix_cancel_dc_q = (mag_0*10000) / (mag_0*10000 - mag_1*10000);
-		else {
-			if (mag_0 == mag_1)
-				PHY_DEBUG(("[CAL]   ***** mag_0 = mag_1 !!\n"));
-			fix_cancel_dc_q = 0;
-		}
-
-		PHY_DEBUG(("[CAL]    ** fix_cancel_dc_q = %d (0x%04X)\n",
-				   fix_cancel_dc_q, _s32_to_s5(fix_cancel_dc_q)));
-
-		if ((abs(mag_1-mag_0)*6) > mag_0)
-			break;
-	}
-
-	if (loop >= 19)
-		fix_cancel_dc_q = 0;
-
-	reg_dc_cancel &= ~(0x001F);
-	reg_dc_cancel |= (_s32_to_s5(fix_cancel_dc_q) << CANCEL_DC_Q_SHIFT);
-	hw_set_dxx_reg(phw_data, 0x5C, reg_dc_cancel);
-	PHY_DEBUG(("[CAL]    DC_CANCEL (write) = 0x%08X\n", reg_dc_cancel));
-
-
-	/* f. */
-	reg_mode_ctrl &= ~MASK_CALIB_START;
-	hw_set_dxx_reg(phw_data, REG_MODE_CTRL, reg_mode_ctrl);
-	PHY_DEBUG(("[CAL]    MODE_CTRL (write) = 0x%08X\n", reg_mode_ctrl));
-}
-
 /* 20060612.1.a 20060718.1 Modify */
-u8 _tx_iq_calibration_loop_winbond(struct hw_data *phw_data,
+static u8 _tx_iq_calibration_loop_winbond(struct hw_data *phw_data,
 						   s32 a_2_threshold,
 						   s32 b_2_threshold)
 {
@@ -962,7 +679,7 @@ u8 _tx_iq_calibration_loop_winbond(struct hw_data *phw_data,
 	return 1;
 }
 
-void _tx_iq_calibration_winbond(struct hw_data *phw_data)
+static void _tx_iq_calibration_winbond(struct hw_data *phw_data)
 {
 	u32     reg_agc_ctrl3;
 #ifdef _DEBUG
@@ -1108,7 +825,7 @@ void _tx_iq_calibration_winbond(struct hw_data *phw_data)
 }
 
 /*****************************************************/
-u8 _rx_iq_calibration_loop_winbond(struct hw_data *phw_data, u16 factor, u32 frequency)
+static u8 _rx_iq_calibration_loop_winbond(struct hw_data *phw_data, u16 factor, u32 frequency)
 {
 	u32     reg_mode_ctrl;
 	s32     iqcal_tone_i;
@@ -1382,7 +1099,7 @@ u8 _rx_iq_calibration_loop_winbond(struct hw_data *phw_data, u16 factor, u32 fre
 /*************************************************/
 
 /***************************************************************/
-void _rx_iq_calibration_winbond(struct hw_data *phw_data, u32 frequency)
+static void _rx_iq_calibration_winbond(struct hw_data *phw_data, u32 frequency)
 {
 /* figo 20050523 marked this flag for can't compile for release */
 #ifdef _DEBUG
-- 
cgit 


From e12483e0f3dbc32dad8fa1dc97efac22b6aee94f Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 29 Oct 2013 16:37:11 +0100
Subject: ALSA: ak4114: Fix wrong register array size

The size of the register cache array is actually 6 instead of 7,
as it caches up to AK4114_REG_INT1_MASK.  This resulted in unexpected
access out of array range, although most of them aren't so serious
(just reading one more byte on the stack at snd_ak4114_create()).

Also, the check of cache size was wrongly done by checking with
sizeof() instead of ARRAY_SIZE().  Fixed this together.

(And yes, hardcoded numbers are bad, but I keep the coding style as is
 for making it clear what this patch actually does.)

Spotted by coverity among several CIDs, e.g. 711621.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/ak4114.h   | 4 ++--
 sound/i2c/other/ak4114.c | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/sound/ak4114.h b/include/sound/ak4114.h
index 3ce69fd92523..52f02a60dba7 100644
--- a/include/sound/ak4114.h
+++ b/include/sound/ak4114.h
@@ -170,7 +170,7 @@ struct ak4114 {
 	void * private_data;
 	unsigned int init: 1;
 	spinlock_t lock;
-	unsigned char regmap[7];
+	unsigned char regmap[6];
 	unsigned char txcsb[5];
 	struct snd_kcontrol *kctls[AK4114_CONTROLS];
 	struct snd_pcm_substream *playback_substream;
@@ -189,7 +189,7 @@ struct ak4114 {
 
 int snd_ak4114_create(struct snd_card *card,
 		      ak4114_read_t *read, ak4114_write_t *write,
-		      const unsigned char pgm[7], const unsigned char txcsb[5],
+		      const unsigned char pgm[6], const unsigned char txcsb[5],
 		      void *private_data, struct ak4114 **r_ak4114);
 void snd_ak4114_reg_write(struct ak4114 *ak4114, unsigned char reg, unsigned char mask, unsigned char val);
 void snd_ak4114_reinit(struct ak4114 *ak4114);
diff --git a/sound/i2c/other/ak4114.c b/sound/i2c/other/ak4114.c
index 5bf4fca19e48..15ae0250eace 100644
--- a/sound/i2c/other/ak4114.c
+++ b/sound/i2c/other/ak4114.c
@@ -60,7 +60,7 @@ static void reg_dump(struct ak4114 *ak4114)
 
 	printk(KERN_DEBUG "AK4114 REG DUMP:\n");
 	for (i = 0; i < 0x20; i++)
-		printk(KERN_DEBUG "reg[%02x] = %02x (%02x)\n", i, reg_read(ak4114, i), i < sizeof(ak4114->regmap) ? ak4114->regmap[i] : 0);
+		printk(KERN_DEBUG "reg[%02x] = %02x (%02x)\n", i, reg_read(ak4114, i), i < ARRAY_SIZE(ak4114->regmap) ? ak4114->regmap[i] : 0);
 }
 #endif
 
@@ -81,7 +81,7 @@ static int snd_ak4114_dev_free(struct snd_device *device)
 
 int snd_ak4114_create(struct snd_card *card,
 		      ak4114_read_t *read, ak4114_write_t *write,
-		      const unsigned char pgm[7], const unsigned char txcsb[5],
+		      const unsigned char pgm[6], const unsigned char txcsb[5],
 		      void *private_data, struct ak4114 **r_ak4114)
 {
 	struct ak4114 *chip;
@@ -101,7 +101,7 @@ int snd_ak4114_create(struct snd_card *card,
 	chip->private_data = private_data;
 	INIT_DELAYED_WORK(&chip->work, ak4114_stats);
 
-	for (reg = 0; reg < 7; reg++)
+	for (reg = 0; reg < 6; reg++)
 		chip->regmap[reg] = pgm[reg];
 	for (reg = 0; reg < 5; reg++)
 		chip->txcsb[reg] = txcsb[reg];
@@ -142,7 +142,7 @@ static void ak4114_init_regs(struct ak4114 *chip)
 	/* release reset, but leave powerdown */
 	reg_write(chip, AK4114_REG_PWRDN, (old | AK4114_RST) & ~AK4114_PWN);
 	udelay(200);
-	for (reg = 1; reg < 7; reg++)
+	for (reg = 1; reg < 6; reg++)
 		reg_write(chip, reg, chip->regmap[reg]);
 	for (reg = 0; reg < 5; reg++)
 		reg_write(chip, reg + AK4114_REG_TXCSB0, chip->txcsb[reg]);
-- 
cgit 


From 17607ca280221c26d0a53bf7d53c339489a936cc Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Tue, 29 Oct 2013 10:14:34 +0200
Subject: Staging: winbond: Fix Sparse Warnings in reg.c

This patch fixes the Sparse Warnings "symbol was
not declared. Should it be static?" and "defined
but not used [-Wunused-variable]"
in reg.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/winbond/reg.c | 105 ++++++++++++------------------------------
 1 file changed, 29 insertions(+), 76 deletions(-)

diff --git a/drivers/staging/winbond/reg.c b/drivers/staging/winbond/reg.c
index 80b4b343a94e..5fd4c4a72eee 100644
--- a/drivers/staging/winbond/reg.c
+++ b/drivers/staging/winbond/reg.c
@@ -43,7 +43,7 @@
  */
 
 /* MAX2825 (pure b/g) */
-u32 max2825_rf_data[] = {
+static u32 max2825_rf_data[] = {
 	(0x00<<18) | 0x000a2,
 	(0x01<<18) | 0x21cc0,
 	(0x02<<18) | 0x13806,
@@ -59,7 +59,7 @@ u32 max2825_rf_data[] = {
 	(0x0C<<18) | 0x0c100   /* 11a: 0x0c300, 11g: 0x0c100 */
 };
 
-u32 max2825_channel_data_24[][3] = {
+static u32 max2825_channel_data_24[][3] = {
 	{(0x03 << 18) | 0x30142, (0x04 << 18) | 0x0b333, (0x05 << 18) | 0x289A6}, /* channel 01 */
 	{(0x03 << 18) | 0x32141, (0x04 << 18) | 0x08444, (0x05 << 18) | 0x289A6}, /* channel 02 */
 	{(0x03 << 18) | 0x32143, (0x04 << 18) | 0x0aeee, (0x05 << 18) | 0x289A6}, /* channel 03 */
@@ -76,11 +76,11 @@ u32 max2825_channel_data_24[][3] = {
 	{(0x03 << 18) | 0x32941, (0x04 << 18) | 0x09999, (0x05 << 18) | 0x289A6}  /* channel 14 (2484MHz) */
 };
 
-u32 max2825_power_data_24[] = {(0x0C << 18) | 0x0c000, (0x0C << 18) | 0x0c100};
+static u32 max2825_power_data_24[] = {(0x0C << 18) | 0x0c000, (0x0C << 18) | 0x0c100};
 
 /* ========================================== */
 /* MAX2827 (a/b/g) */
-u32 max2827_rf_data[] = {
+static u32 max2827_rf_data[] = {
 	(0x00 << 18) | 0x000a2,
 	(0x01 << 18) | 0x21cc0,
 	(0x02 << 18) | 0x13806,
@@ -96,7 +96,7 @@ u32 max2827_rf_data[] = {
 	(0x0C << 18) | 0x0c100   /* 11a: 0x0c300, 11g: 0x0c100 */
 };
 
-u32 max2827_channel_data_24[][3] = {
+static u32 max2827_channel_data_24[][3] = {
 	{(0x03 << 18) | 0x30142, (0x04 << 18) | 0x0b333, (0x05 << 18) | 0x289A6}, /* channe1 01 */
 	{(0x03 << 18) | 0x32141, (0x04 << 18) | 0x08444, (0x05 << 18) | 0x289A6}, /* channe1 02 */
 	{(0x03 << 18) | 0x32143, (0x04 << 18) | 0x0aeee, (0x05 << 18) | 0x289A6}, /* channe1 03 */
@@ -113,7 +113,7 @@ u32 max2827_channel_data_24[][3] = {
 	{(0x03 << 18) | 0x32941, (0x04 << 18) | 0x09999, (0x05 << 18) | 0x289A6}  /* channel 14 (2484MHz) */
 };
 
-u32 max2827_channel_data_50[][3] = {
+static u32 max2827_channel_data_50[][3] = {
 	{(0x03 << 18) | 0x33cc3, (0x04 << 18) | 0x08ccc, (0x05 << 18) | 0x2A9A6}, /* channel 36 */
 	{(0x03 << 18) | 0x302c0, (0x04 << 18) | 0x08000, (0x05 << 18) | 0x2A9A6}, /* channel 40 */
 	{(0x03 << 18) | 0x302c2, (0x04 << 18) | 0x0b333, (0x05 << 18) | 0x2A9A6}, /* channel 44 */
@@ -124,12 +124,12 @@ u32 max2827_channel_data_50[][3] = {
 	{(0x03 << 18) | 0x30ac2, (0x04 << 18) | 0x0b333, (0x05 << 18) | 0x2A9A6}  /* channel 64 */
 };
 
-u32 max2827_power_data_24[] = {(0x0C << 18) | 0x0C000, (0x0C << 18) | 0x0D600, (0x0C << 18) | 0x0C100};
-u32 max2827_power_data_50[] = {(0x0C << 18) | 0x0C400, (0x0C << 18) | 0x0D500, (0x0C << 18) | 0x0C300};
+static u32 max2827_power_data_24[] = {(0x0C << 18) | 0x0C000, (0x0C << 18) | 0x0D600, (0x0C << 18) | 0x0C100};
+static u32 max2827_power_data_50[] = {(0x0C << 18) | 0x0C400, (0x0C << 18) | 0x0D500, (0x0C << 18) | 0x0C300};
 
 /* ======================================================= */
 /* MAX2828 (a/b/g) */
-u32 max2828_rf_data[] = {
+static u32 max2828_rf_data[] = {
 	(0x00 << 18) | 0x000a2,
 	(0x01 << 18) | 0x21cc0,
 	(0x02 << 18) | 0x13806,
@@ -145,7 +145,7 @@ u32 max2828_rf_data[] = {
 	(0x0C << 18) | 0x0c100   /* 11a: 0x0c300, 11g: 0x0c100 */
 };
 
-u32 max2828_channel_data_24[][3] = {
+static u32 max2828_channel_data_24[][3] = {
 	{(0x03 << 18) | 0x30142, (0x04 << 18) | 0x0b333, (0x05 << 18) | 0x289A6}, /* channe1 01 */
 	{(0x03 << 18) | 0x32141, (0x04 << 18) | 0x08444, (0x05 << 18) | 0x289A6}, /* channe1 02 */
 	{(0x03 << 18) | 0x32143, (0x04 << 18) | 0x0aeee, (0x05 << 18) | 0x289A6}, /* channe1 03 */
@@ -162,7 +162,7 @@ u32 max2828_channel_data_24[][3] = {
 	{(0x03 << 18) | 0x32941, (0x04 << 18) | 0x09999, (0x05 << 18) | 0x289A6}  /* channel 14 (2484MHz) */
 };
 
-u32 max2828_channel_data_50[][3] = {
+static u32 max2828_channel_data_50[][3] = {
 	{(0x03 << 18) | 0x33cc3, (0x04 << 18) | 0x08ccc, (0x05 << 18) | 0x289A6}, /* channel 36 */
 	{(0x03 << 18) | 0x302c0, (0x04 << 18) | 0x08000, (0x05 << 18) | 0x289A6}, /* channel 40 */
 	{(0x03 << 18) | 0x302c2, (0x04 << 18) | 0x0b333, (0x05 << 18) | 0x289A6}, /* channel 44 */
@@ -173,12 +173,12 @@ u32 max2828_channel_data_50[][3] = {
 	{(0x03 << 18) | 0x30ac2, (0x04 << 18) | 0x0b333, (0x05 << 18) | 0x289A6}  /* channel 64 */
 };
 
-u32 max2828_power_data_24[] = {(0x0C << 18) | 0x0c000, (0x0C << 18) | 0x0c100};
-u32 max2828_power_data_50[] = {(0x0C << 18) | 0x0c000, (0x0C << 18) | 0x0c100};
+static u32 max2828_power_data_24[] = {(0x0C << 18) | 0x0c000, (0x0C << 18) | 0x0c100};
+static u32 max2828_power_data_50[] = {(0x0C << 18) | 0x0c000, (0x0C << 18) | 0x0c100};
 
 /* ========================================================== */
 /* MAX2829 (a/b/g) */
-u32 max2829_rf_data[] = {
+static u32 max2829_rf_data[] = {
 	(0x00 << 18) | 0x000a2,
 	(0x01 << 18) | 0x23520,
 	(0x02 << 18) | 0x13802,
@@ -194,7 +194,7 @@ u32 max2829_rf_data[] = {
 	(0x0C << 18) | 0x0F300 /* TXVGA=51, (MAX-6 dB) */
 };
 
-u32 max2829_channel_data_24[][3] = {
+static u32 max2829_channel_data_24[][3] = {
 	{(3 << 18) | 0x30142, (4 << 18) | 0x0b333, (5 << 18) | 0x289C6},  /* 01 (2412MHz) */
 	{(3 << 18) | 0x32141, (4 << 18) | 0x08444, (5 << 18) | 0x289C6},  /* 02 (2417MHz) */
 	{(3 << 18) | 0x32143, (4 << 18) | 0x0aeee, (5 << 18) | 0x289C6},  /* 03 (2422MHz) */
@@ -211,7 +211,7 @@ u32 max2829_channel_data_24[][3] = {
 	{(3 << 18) | 0x32941, (4 << 18) | 0x09999, (5 << 18) | 0x289C6},  /* 14 (2484MHz) */
 };
 
-u32 max2829_channel_data_50[][4] = {
+static u32 max2829_channel_data_50[][4] = {
 	{36, (3 << 18) | 0x33cc3, (4 << 18) | 0x08ccc, (5 << 18) | 0x2A946}, /* 36 (5.180GHz) */
 	{40, (3 << 18) | 0x302c0, (4 << 18) | 0x08000, (5 << 18) | 0x2A946}, /* 40 (5.200GHz) */
 	{44, (3 << 18) | 0x302c2, (4 << 18) | 0x0b333, (5 << 18) | 0x2A946}, /* 44 (5.220GHz) */
@@ -296,51 +296,6 @@ u32 max2829_channel_data_50[][4] = {
  * 0x0c 0x0c000
  * ====================================================================
  */
-u32 maxim_317_rf_data[] = {
-	(0x00 << 18) | 0x000a2,
-	(0x01 << 18) | 0x214c0,
-	(0x02 << 18) | 0x13802,
-	(0x03 << 18) | 0x30143,
-	(0x04 << 18) | 0x0accc,
-	(0x05 << 18) | 0x28986,
-	(0x06 << 18) | 0x18008,
-	(0x07 << 18) | 0x38400,
-	(0x08 << 18) | 0x05108,
-	(0x09 << 18) | 0x27ff8,
-	(0x0A << 18) | 0x14000,
-	(0x0B << 18) | 0x37f99,
-	(0x0C << 18) | 0x0c000
-};
-
-u32 maxim_317_channel_data_24[][3] = {
-	{(0x03 << 18) | 0x30143, (0x04 << 18) | 0x0accc, (0x05 << 18) | 0x28986}, /* channe1 01 */
-	{(0x03 << 18) | 0x32140, (0x04 << 18) | 0x09111, (0x05 << 18) | 0x28986}, /* channe1 02 */
-	{(0x03 << 18) | 0x32142, (0x04 << 18) | 0x0bbbb, (0x05 << 18) | 0x28986}, /* channe1 03 */
-	{(0x03 << 18) | 0x32143, (0x04 << 18) | 0x0accc, (0x05 << 18) | 0x28986}, /* channe1 04 */
-	{(0x03 << 18) | 0x31140, (0x04 << 18) | 0x09111, (0x05 << 18) | 0x28986}, /* channe1 05 */
-	{(0x03 << 18) | 0x31142, (0x04 << 18) | 0x0bbbb, (0x05 << 18) | 0x28986}, /* channe1 06 */
-	{(0x03 << 18) | 0x31143, (0x04 << 18) | 0x0accc, (0x05 << 18) | 0x28986}, /* channe1 07 */
-	{(0x03 << 18) | 0x33140, (0x04 << 18) | 0x09111, (0x05 << 18) | 0x28986}, /* channe1 08 */
-	{(0x03 << 18) | 0x33142, (0x04 << 18) | 0x0bbbb, (0x05 << 18) | 0x28986}, /* channe1 09 */
-	{(0x03 << 18) | 0x33143, (0x04 << 18) | 0x0accc, (0x05 << 18) | 0x28986}, /* channe1 10 */
-	{(0x03 << 18) | 0x30940, (0x04 << 18) | 0x09111, (0x05 << 18) | 0x28986}, /* channe1 11 */
-	{(0x03 << 18) | 0x30942, (0x04 << 18) | 0x0bbbb, (0x05 << 18) | 0x28986}, /* channe1 12 */
-	{(0x03 << 18) | 0x30943, (0x04 << 18) | 0x0accc, (0x05 << 18) | 0x28986}  /* channe1 13 */
-};
-
-u32 maxim_317_channel_data_50[][3] = {
-	{(0x03 << 18) | 0x33cc0, (0x04 << 18) | 0x0b333, (0x05 << 18) | 0x2a986}, /* channel 36 */
-	{(0x03 << 18) | 0x302c0, (0x04 << 18) | 0x08000, (0x05 << 18) | 0x2a986}, /* channel 40 */
-	{(0x03 << 18) | 0x302c3, (0x04 << 18) | 0x0accc, (0x05 << 18) | 0x2a986}, /* channel 44 */
-	{(0x03 << 18) | 0x322c1, (0x04 << 18) | 0x09666, (0x05 << 18) | 0x2a986}, /* channel 48 */
-	{(0x03 << 18) | 0x312c2, (0x04 << 18) | 0x09999, (0x05 << 18) | 0x2a986}, /* channel 52 */
-	{(0x03 << 18) | 0x332c0, (0x04 << 18) | 0x0b333, (0x05 << 18) | 0x2a99e}, /* channel 56 */
-	{(0x03 << 18) | 0x30ac0, (0x04 << 18) | 0x08000, (0x05 << 18) | 0x2a99e}, /* channel 60 */
-	{(0x03 << 18) | 0x30ac3, (0x04 << 18) | 0x0accc, (0x05 << 18) | 0x2a99e}  /* channel 64 */
-};
-
-u32 maxim_317_power_data_24[] = {(0x0C << 18) | 0x0c000, (0x0C << 18) | 0x0c100};
-u32 maxim_317_power_data_50[] = {(0x0C << 18) | 0x0c000, (0x0C << 18) | 0x0c100};
 
 /*
  * ===================================================================
@@ -388,7 +343,7 @@ u32 maxim_317_power_data_50[] = {(0x0C << 18) | 0x0c000, (0x0C << 18) | 0x0c100}
  * 0x0f 0xf00a0 ; Restore Initial Setting
  * ==================================================================
  */
-u32 al2230_rf_data[] = {
+static u32 al2230_rf_data[] = {
 	(0x00 << 20) | 0x09EFC,
 	(0x01 << 20) | 0x8CCCC,
 	(0x02 << 20) | 0x40058,
@@ -406,7 +361,7 @@ u32 al2230_rf_data[] = {
 	(0x0F << 20) | 0xF01A0
 };
 
-u32 al2230s_rf_data[] = {
+static u32 al2230s_rf_data[] = {
 	(0x00 << 20) | 0x09EFC,
 	(0x01 << 20) | 0x8CCCC,
 	(0x02 << 20) | 0x40058,
@@ -424,7 +379,7 @@ u32 al2230s_rf_data[] = {
 	(0x0F << 20) | 0xF01A0
 };
 
-u32 al2230_channel_data_24[][2] = {
+static u32 al2230_channel_data_24[][2] = {
 	{(0x00 << 20) | 0x09EFC, (0x01 << 20) | 0x8CCCC}, /* channe1 01 */
 	{(0x00 << 20) | 0x09EFC, (0x01 << 20) | 0x8CCCD}, /* channe1 02 */
 	{(0x00 << 20) | 0x09E7C, (0x01 << 20) | 0x8CCCC}, /* channe1 03 */
@@ -446,7 +401,7 @@ u32 al2230_channel_data_24[][2] = {
 #define AIROHA_TXVGA_MIDDLE_INDEX	12	/* Index for 0x96602 */
 #define AIROHA_TXVGA_HIGH_INDEX		8	/* Index for 0x97602 1.0.24.0 1.0.28.0 */
 
-u32 al2230_txvga_data[][2] = {
+static u32 al2230_txvga_data[][2] = {
 	/* value , index */
 	{0x090202, 0},
 	{0x094202, 2},
@@ -497,7 +452,7 @@ u32 al2230_txvga_data[][2] = {
  */
 
 /* channel independent registers: */
-u32 al7230_rf_data_24[]	= {
+static u32 al7230_rf_data_24[]	= {
 	(0x00 << 24) | 0x003790,
 	(0x01 << 24) | 0x133331,
 	(0x02 << 24) | 0x841FF2,
@@ -516,7 +471,7 @@ u32 al7230_rf_data_24[]	= {
 	(0x0F << 24) | 0x1ABA8F
 };
 
-u32 al7230_channel_data_24[][2] = {
+static u32 al7230_channel_data_24[][2] = {
 	{(0x00 << 24) | 0x003790, (0x01 << 24) | 0x133331}, /* channe1 01 */
 	{(0x00 << 24) | 0x003790, (0x01 << 24) | 0x1B3331}, /* channe1 02 */
 	{(0x00 << 24) | 0x003790, (0x01 << 24) | 0x033331}, /* channe1 03 */
@@ -534,7 +489,7 @@ u32 al7230_channel_data_24[][2] = {
 };
 
 /* channel independent registers: */
-u32 al7230_rf_data_50[]	= {
+static u32 al7230_rf_data_50[]	= {
 	(0x00 << 24) | 0x0FF520,
 	(0x01 << 24) | 0x000001,
 	(0x02 << 24) | 0x451FE2,
@@ -553,7 +508,7 @@ u32 al7230_rf_data_50[]	= {
 	(0x0F << 24) | 0x12BACF  /* 5Ghz default state */
 };
 
-u32 al7230_channel_data_5[][4] = {
+static u32 al7230_channel_data_5[][4] = {
 	/* channel dependent registers: 0x00, 0x01 and 0x04 */
 	/* 11J =========== */
 	{184, (0x00 << 24) | 0x0FF520, (0x01 << 24) | 0x000001, (0x04 << 24) | 0x67F784}, /* channel 184 */
@@ -603,7 +558,7 @@ u32 al7230_channel_data_5[][4] = {
  */
 
 /* TXVGA Mapping Table <=== Register 0x0B */
-u32 al7230_txvga_data[][2] = {
+static u32 al7230_txvga_data[][2] = {
 	{0x08040B, 0}, /* TXVGA = 0; */
 	{0x08041B, 1}, /* TXVGA = 1; */
 	{0x08042B, 2}, /* TXVGA = 2; */
@@ -675,7 +630,7 @@ u32 al7230_txvga_data[][2] = {
  * W89RF242 RFIC SPI programming initial data
  * Winbond WLAN 11g RFIC BB-SPI register -- version FA5976A rev 1.3b
  */
-u32 w89rf242_rf_data[] = {
+static u32 w89rf242_rf_data[] = {
 	(0x00 << 24) | 0xF86100, /* 3E184; MODA  (0x00) -- Normal mode ; calibration off */
 	(0x01 << 24) | 0xEFFFC2, /* 3BFFF; MODB  (0x01) -- turn off RSSI, and other circuits are turned on */
 	(0x02 << 24) | 0x102504, /* 04094; FSET  (0x02) -- default 20MHz crystal ; Icmp=1.5mA */
@@ -696,7 +651,7 @@ u32 w89rf242_rf_data[] = {
 	(0x12 << 24) | 0x000024  /* TMODC (0x12) -- Turn OFF Temperature sensor */
 };
 
-u32 w89rf242_channel_data_24[][2] = {
+static u32 w89rf242_channel_data_24[][2] = {
 	{(0x03 << 24) | 0x025B06, (0x04 << 24) | 0x080408}, /* channe1 01 */
 	{(0x03 << 24) | 0x025C46, (0x04 << 24) | 0x080408}, /* channe1 02 */
 	{(0x03 << 24) | 0x025D86, (0x04 << 24) | 0x080408}, /* channe1 03 */
@@ -713,9 +668,7 @@ u32 w89rf242_channel_data_24[][2] = {
 	{(0x03 << 24) | 0x026D06, (0x04 << 24) | 0x080408}  /* channe1 14 */
 };
 
-u32 w89rf242_power_data_24[] = {(0x05 << 24) | 0x24C48A, (0x05 << 24) | 0x24C48A, (0x05 << 24) | 0x24C48A};
-
-u32 w89rf242_txvga_old_mapping[][2] = {
+static u32 w89rf242_txvga_old_mapping[][2] = {
 	{0, 0} , /* New <-> Old */
 	{1, 1} ,
 	{2, 2} ,
@@ -738,7 +691,7 @@ u32 w89rf242_txvga_old_mapping[][2] = {
 	{34, 19},
 };
 
-u32 w89rf242_txvga_data[][5] = {
+static u32 w89rf242_txvga_data[][5] = {
 	/* low gain mode */
 	{(0x05 << 24) | 0x24C00A, 0, 0x00292315, 0x0800FEFF, 0x52523131}, /* min gain */
 	{(0x05 << 24) | 0x24C80A, 1, 0x00292315, 0x0800FEFF, 0x52523131},
-- 
cgit 


From d5a499671ba008915e886e95af6c498f168f42d4 Mon Sep 17 00:00:00 2001
From: Himangi Saraogi <himangi774@gmail.com>
Date: Tue, 29 Oct 2013 06:28:03 +0530
Subject: Stging: bcm: Adapter.h : removed typedef from struct _U_IP_ADDRESS
 and changed it to lowercase

Running checkpatch.pl on the file drivers/staging/bcm/Adapter.h gave
an error as it is a mistake to use typedef for structures
according to CodeingStyle as it reduces readability. The typedef was
removed and all occurrences of the typedef union were replaced with
union u_ip_address as types are all lowercase.

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/bcm/Adapter.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/bcm/Adapter.h b/drivers/staging/bcm/Adapter.h
index d6c9630a8822..5dfdf5a4411d 100644
--- a/drivers/staging/bcm/Adapter.h
+++ b/drivers/staging/bcm/Adapter.h
@@ -35,7 +35,7 @@ struct bcm_link_request {
 #define MAX_PROTOCOL_LENGTH   32
 #define IPV6_ADDRESS_SIZEINBYTES 0x10
 
-typedef union _U_IP_ADDRESS {
+union u_ip_address {
 	struct {
 		ULONG ulIpv4Addr[MAX_IP_RANGE_LENGTH]; /* Source Ip Address Range */
 		ULONG ulIpv4Mask[MAX_IP_RANGE_LENGTH]; /* Source Ip Mask Address Range */
@@ -52,7 +52,7 @@ typedef union _U_IP_ADDRESS {
 		UCHAR ucIpv6Address[MAX_IP_RANGE_LENGTH * IPV6_ADDRESS_SIZEINBYTES];
 		UCHAR ucIpv6Mask[MAX_IP_RANGE_LENGTH * IPV6_ADDRESS_SIZEINBYTES];
 	};
-} U_IP_ADDRESS;
+};
 
 struct bcm_hdr_suppression_contextinfo {
 	UCHAR ucaHdrSuppressionInBuf[MAX_PHS_LENGTHS]; /* Intermediate buffer to accumulate pkt Header for PHS */
@@ -66,10 +66,10 @@ struct bcm_classifier_rule {
 	bool		bUsed;
 	USHORT		usVCID_Value;
 	B_UINT8		u8ClassifierRulePriority; /* This field detemines the Classifier Priority */
-	U_IP_ADDRESS	stSrcIpAddress;
+	union u_ip_address	stSrcIpAddress;
 	UCHAR		ucIPSourceAddressLength; /* Ip Source Address Length */
 
-	U_IP_ADDRESS	stDestIpAddress;
+	union u_ip_address	stDestIpAddress;
 	UCHAR		ucIPDestinationAddressLength; /* Ip Destination Address Length */
 	UCHAR		ucIPTypeOfServiceLength; /* Type of service Length */
 	UCHAR		ucTosLow; /* Tos Low */
-- 
cgit 


From 4c88b7f287e329698727049641ecdf50c8c66af5 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 29 Oct 2013 16:45:34 +0100
Subject: ALSA: ice1724: Fix uninitialized variable access

Spotted by coverity CIDs 751505 and 751506.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/ice1712/wm8766.c | 3 ++-
 sound/pci/ice1712/wm8776.c | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/sound/pci/ice1712/wm8766.c b/sound/pci/ice1712/wm8766.c
index e473f8a88f9c..21b373b2e260 100644
--- a/sound/pci/ice1712/wm8766.c
+++ b/sound/pci/ice1712/wm8766.c
@@ -253,7 +253,8 @@ static int snd_wm8766_ctl_get(struct snd_kcontrol *kcontrol,
 	}
 	if (wm->ctl[n].flags & WM8766_FLAG_INVERT) {
 		val1 = wm->ctl[n].max - (val1 - wm->ctl[n].min);
-		val2 = wm->ctl[n].max - (val2 - wm->ctl[n].min);
+		if (wm->ctl[n].flags & WM8766_FLAG_STEREO)
+			val2 = wm->ctl[n].max - (val2 - wm->ctl[n].min);
 	}
 	ucontrol->value.integer.value[0] = val1;
 	if (wm->ctl[n].flags & WM8766_FLAG_STEREO)
diff --git a/sound/pci/ice1712/wm8776.c b/sound/pci/ice1712/wm8776.c
index 5227cb08247f..e66c0da62014 100644
--- a/sound/pci/ice1712/wm8776.c
+++ b/sound/pci/ice1712/wm8776.c
@@ -526,7 +526,8 @@ static int snd_wm8776_ctl_get(struct snd_kcontrol *kcontrol,
 	}
 	if (wm->ctl[n].flags & WM8776_FLAG_INVERT) {
 		val1 = wm->ctl[n].max - (val1 - wm->ctl[n].min);
-		val2 = wm->ctl[n].max - (val2 - wm->ctl[n].min);
+		if (wm->ctl[n].flags & WM8776_FLAG_STEREO)
+			val2 = wm->ctl[n].max - (val2 - wm->ctl[n].min);
 	}
 	ucontrol->value.integer.value[0] = val1;
 	if (wm->ctl[n].flags & WM8776_FLAG_STEREO)
-- 
cgit 


From 0cd2da41a35ae990233eaeadea3da90d1481be43 Mon Sep 17 00:00:00 2001
From: Chuong Ngo <cngo.github@gmail.com>
Date: Wed, 23 Oct 2013 15:11:20 -0400
Subject: drivers: staging: bcm: Removed a developer debug statement.

Removed a developer debug statement per the TODO list.  Additionally,
removed braces for the if-statement to match coding style.

Signed-off-by: Chuong Ngo <cngo.github@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/bcm/Bcmchar.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/staging/bcm/Bcmchar.c b/drivers/staging/bcm/Bcmchar.c
index 9d57d0478aa5..8c811439faba 100644
--- a/drivers/staging/bcm/Bcmchar.c
+++ b/drivers/staging/bcm/Bcmchar.c
@@ -49,11 +49,8 @@ static int bcm_char_release(struct inode *inode, struct file *filp)
 
 	pTarang = (struct bcm_tarang_data *)filp->private_data;
 
-	if (pTarang == NULL) {
-		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,
-				"ptarang is null\n");
+	if (pTarang == NULL)
 		return 0;
-	}
 
 	Adapter = pTarang->Adapter;
 
-- 
cgit 


From 9cd5ab9c3c32767e5c5e76bed9b0e2b84512f936 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 29 Oct 2013 16:51:36 +0100
Subject: ALSA: lola: Fix uninitialized variable access in error message

The FUNCTION_TYPE parameter isn't associated with any NID, thus
showing the uninitialized nid in the error message is simply
nonsense.

Spotted by coverity CID 145068.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/lola/lola.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/lola/lola.c b/sound/pci/lola/lola.c
index 7307d97186cb..0568540dc8d3 100644
--- a/sound/pci/lola/lola.c
+++ b/sound/pci/lola/lola.c
@@ -463,7 +463,7 @@ static int lola_parse_tree(struct lola *chip)
 
 	err = lola_read_param(chip, 1, LOLA_PAR_FUNCTION_TYPE, &val);
 	if (err < 0) {
-		printk(KERN_ERR SFX "Can't read FUNCTION_TYPE for 0x%x\n", nid);
+		printk(KERN_ERR SFX "Can't read FUNCTION_TYPE\n");
 		return err;
 	}
 	if (val != 1) {
-- 
cgit 


From 923fb2aecefd0889d9e0c92f01de52313194344e Mon Sep 17 00:00:00 2001
From: Kevin McKinney <klmckinney1@gmail.com>
Date: Mon, 28 Oct 2013 23:51:38 -0400
Subject: Staging: bcm: Fix WARNING: space prohibited before semicolon.

This patch removes a space before semicolon as
specified by checkpatch.pl.

Signed-off-by: Kevin McKinney <klmckinney1@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/bcm/Adapter.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/bcm/Adapter.h b/drivers/staging/bcm/Adapter.h
index 5dfdf5a4411d..9cd59871adb2 100644
--- a/drivers/staging/bcm/Adapter.h
+++ b/drivers/staging/bcm/Adapter.h
@@ -267,7 +267,7 @@ struct bcm_mini_adapter {
 	bool			fw_download_done;
 
 	char			*txctlpacket[MAX_CNTRL_PKTS];
-	atomic_t		cntrlpktCnt ;
+	atomic_t		cntrlpktCnt;
 	atomic_t		index_app_read_cntrlpkt;
 	atomic_t		index_wr_txcntrlpkt;
 	atomic_t		index_rd_txcntrlpkt;
-- 
cgit 


From e16dbf6011137343f51685c1e0c5be36a68fc501 Mon Sep 17 00:00:00 2001
From: Markus Pargmann <mpa@pengutronix.de>
Date: Tue, 29 Oct 2013 15:32:19 +0100
Subject: pinctrl: imx27: imx27 pincontrol driver

imx27 pincontrol driver using the imx1 core driver. The DT bindings are
similar to other imx pincontrol drivers.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 .../bindings/pinctrl/fsl,imx27-pinctrl.txt         |  99 +++++
 drivers/pinctrl/Kconfig                            |   8 +
 drivers/pinctrl/Makefile                           |   1 +
 drivers/pinctrl/pinctrl-imx27.c                    | 477 +++++++++++++++++++++
 4 files changed, 585 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/pinctrl/fsl,imx27-pinctrl.txt
 create mode 100644 drivers/pinctrl/pinctrl-imx27.c

diff --git a/Documentation/devicetree/bindings/pinctrl/fsl,imx27-pinctrl.txt b/Documentation/devicetree/bindings/pinctrl/fsl,imx27-pinctrl.txt
new file mode 100644
index 000000000000..353eca0efbf8
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/fsl,imx27-pinctrl.txt
@@ -0,0 +1,99 @@
+* Freescale IMX27 IOMUX Controller
+
+Required properties:
+- compatible: "fsl,imx27-iomuxc"
+
+The iomuxc driver node should define subnodes containing of pinctrl configuration subnodes.
+
+Required properties for pin configuration node:
+- fsl,pins: three integers array, represents a group of pins mux and config
+  setting. The format is fsl,pins = <PIN MUX_ID CONFIG>.
+
+  PIN is an integer between 0 and 0xbf. imx27 has 6 ports with 32 configurable
+  configurable pins each. PIN is PORT * 32 + PORT_PIN, PORT_PIN is the pin
+  number on the specific port (between 0 and 31).
+
+  MUX_ID is
+    function + (direction << 2) + (gpio_oconf << 4) + (gpio_iconfa << 8) + (gpio_iconfb << 10)
+
+      function value is used to select the pin function.
+      Possible values:
+          0 - Primary function
+          1 - Alternate function
+          2 - GPIO
+      Registers: GIUS (GPIO In Use), GPR (General Purpose Register)
+
+      direction defines the data direction of the pin.
+      Possible values:
+          0 - Input
+          1 - Output
+      Register: DDIR
+
+      gpio_oconf configures the gpio submodule output signal. This does not
+      have any effect unless GPIO function is selected. A/B/C_IN are output
+      signals of function blocks A,B and C. Specific function blocks are
+      described in the reference manual.
+      Possible values:
+          0 - A_IN
+          1 - B_IN
+          2 - C_IN
+          3 - Data Register
+      Registers: OCR1, OCR2
+
+      gpio_iconfa/b configures the gpio submodule input to functionblocks A and
+      B. GPIO function should be selected if this is configured.
+      Possible values:
+          0 - GPIO_IN
+          1 - Interrupt Status Register
+          2 - Pulldown
+          3 - Pullup
+      Registers ICONFA1, ICONFA2, ICONFB1 and ICONFB2
+
+  CONFIG can be 0 or 1, meaning Pullup disable/enable.
+
+
+
+Example:
+
+iomuxc: iomuxc@10015000 {
+	compatible = "fsl,imx27-iomuxc";
+	reg = <0x10015000 0x600>;
+
+	uart {
+		pinctrl_uart1: uart-1 {
+			fsl,pins = <
+				0x8c 0x004 0x0 /* UART1_TXD__UART1_TXD */
+				0x8d 0x000 0x0 /* UART1_RXD__UART1_RXD */
+				0x8e 0x004 0x0 /* UART1_CTS__UART1_CTS */
+				0x8f 0x000 0x0 /* UART1_RTS__UART1_RTS */
+			>;
+		};
+
+		...
+	};
+};
+
+
+For convenience there are macros defined in imx27-pinfunc.h which provide PIN
+and MUX_ID. They are structured as MX27_PAD_<Pad name>__<Signal name>. The names
+are defined in the i.MX27 reference manual.
+
+The above example using macros:
+
+iomuxc: iomuxc@10015000 {
+	compatible = "fsl,imx27-iomuxc";
+	reg = <0x10015000 0x600>;
+
+	uart {
+		pinctrl_uart1: uart-1 {
+			fsl,pins = <
+				MX27_PAD_UART1_TXD__UART1_TXD 0x0
+				MX27_PAD_UART1_RXD__UART1_RXD 0x0
+				MX27_PAD_UART1_CTS__UART1_CTS 0x0
+				MX27_PAD_UART1_RTS__UART1_RTS 0x0
+			>;
+		};
+
+		...
+	};
+};
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index fcc748f68f4a..db1ddcaebf05 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -114,6 +114,14 @@ config PINCTRL_IMX1_CORE
 	select PINMUX
 	select PINCONF
 
+config PINCTRL_IMX27
+	bool "IMX27 pinctrl driver"
+	depends on OF
+	depends on SOC_IMX27
+	select PINCTRL_IMX1_CORE
+	help
+	  Say Y here to enable the imx27 pinctrl driver
+
 config PINCTRL_IMX35
 	bool "IMX35 pinctrl driver"
 	depends on OF
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index 8b334e305537..915d19c1cdc6 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -23,6 +23,7 @@ obj-$(CONFIG_PINCTRL_BCM2835)	+= pinctrl-bcm2835.o
 obj-$(CONFIG_PINCTRL_BAYTRAIL)	+= pinctrl-baytrail.o
 obj-$(CONFIG_PINCTRL_IMX)	+= pinctrl-imx.o
 obj-$(CONFIG_PINCTRL_IMX1_CORE)	+= pinctrl-imx1-core.o
+obj-$(CONFIG_PINCTRL_IMX27)	+= pinctrl-imx27.o
 obj-$(CONFIG_PINCTRL_IMX35)	+= pinctrl-imx35.o
 obj-$(CONFIG_PINCTRL_IMX51)	+= pinctrl-imx51.o
 obj-$(CONFIG_PINCTRL_IMX53)	+= pinctrl-imx53.o
diff --git a/drivers/pinctrl/pinctrl-imx27.c b/drivers/pinctrl/pinctrl-imx27.c
new file mode 100644
index 000000000000..417c99205bc2
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-imx27.c
@@ -0,0 +1,477 @@
+/*
+ * imx27 pinctrl driver based on imx pinmux core
+ *
+ * Copyright (C) 2013 Pengutronix
+ *
+ * Author: Markus Pargmann <mpa@pengutronix.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-imx1.h"
+
+#define PAD_ID(port, pin) (port*32 + pin)
+#define PA 0
+#define PB 1
+#define PC 2
+#define PD 3
+#define PE 4
+#define PF 5
+
+enum imx27_pads {
+	MX27_PAD_USBH2_CLK = PAD_ID(PA, 0),
+	MX27_PAD_USBH2_DIR = PAD_ID(PA, 1),
+	MX27_PAD_USBH2_DATA7 = PAD_ID(PA, 2),
+	MX27_PAD_USBH2_NXT = PAD_ID(PA, 3),
+	MX27_PAD_USBH2_STP = PAD_ID(PA, 4),
+	MX27_PAD_LSCLK = PAD_ID(PA, 5),
+	MX27_PAD_LD0 = PAD_ID(PA, 6),
+	MX27_PAD_LD1 = PAD_ID(PA, 7),
+	MX27_PAD_LD2 = PAD_ID(PA, 8),
+	MX27_PAD_LD3 = PAD_ID(PA, 9),
+	MX27_PAD_LD4 = PAD_ID(PA, 10),
+	MX27_PAD_LD5 = PAD_ID(PA, 11),
+	MX27_PAD_LD6 = PAD_ID(PA, 12),
+	MX27_PAD_LD7 = PAD_ID(PA, 13),
+	MX27_PAD_LD8 = PAD_ID(PA, 14),
+	MX27_PAD_LD9 = PAD_ID(PA, 15),
+	MX27_PAD_LD10 = PAD_ID(PA, 16),
+	MX27_PAD_LD11 = PAD_ID(PA, 17),
+	MX27_PAD_LD12 = PAD_ID(PA, 18),
+	MX27_PAD_LD13 = PAD_ID(PA, 19),
+	MX27_PAD_LD14 = PAD_ID(PA, 20),
+	MX27_PAD_LD15 = PAD_ID(PA, 21),
+	MX27_PAD_LD16 = PAD_ID(PA, 22),
+	MX27_PAD_LD17 = PAD_ID(PA, 23),
+	MX27_PAD_REV = PAD_ID(PA, 24),
+	MX27_PAD_CLS = PAD_ID(PA, 25),
+	MX27_PAD_PS = PAD_ID(PA, 26),
+	MX27_PAD_SPL_SPR = PAD_ID(PA, 27),
+	MX27_PAD_HSYNC = PAD_ID(PA, 28),
+	MX27_PAD_VSYNC = PAD_ID(PA, 29),
+	MX27_PAD_CONTRAST = PAD_ID(PA, 30),
+	MX27_PAD_OE_ACD = PAD_ID(PA, 31),
+
+	MX27_PAD_UNUSED0 = PAD_ID(PB, 0),
+	MX27_PAD_UNUSED1 = PAD_ID(PB, 1),
+	MX27_PAD_UNUSED2 = PAD_ID(PB, 2),
+	MX27_PAD_UNUSED3 = PAD_ID(PB, 3),
+	MX27_PAD_SD2_D0 = PAD_ID(PB, 4),
+	MX27_PAD_SD2_D1 = PAD_ID(PB, 5),
+	MX27_PAD_SD2_D2 = PAD_ID(PB, 6),
+	MX27_PAD_SD2_D3 = PAD_ID(PB, 7),
+	MX27_PAD_SD2_CMD = PAD_ID(PB, 8),
+	MX27_PAD_SD2_CLK = PAD_ID(PB, 9),
+	MX27_PAD_CSI_D0 = PAD_ID(PB, 10),
+	MX27_PAD_CSI_D1 = PAD_ID(PB, 11),
+	MX27_PAD_CSI_D2 = PAD_ID(PB, 12),
+	MX27_PAD_CSI_D3 = PAD_ID(PB, 13),
+	MX27_PAD_CSI_D4 = PAD_ID(PB, 14),
+	MX27_PAD_CSI_MCLK = PAD_ID(PB, 15),
+	MX27_PAD_CSI_PIXCLK = PAD_ID(PB, 16),
+	MX27_PAD_CSI_D5 = PAD_ID(PB, 17),
+	MX27_PAD_CSI_D6 = PAD_ID(PB, 18),
+	MX27_PAD_CSI_D7 = PAD_ID(PB, 19),
+	MX27_PAD_CSI_VSYNC = PAD_ID(PB, 20),
+	MX27_PAD_CSI_HSYNC = PAD_ID(PB, 21),
+	MX27_PAD_USBH1_SUSP = PAD_ID(PB, 22),
+	MX27_PAD_USB_PWR = PAD_ID(PB, 23),
+	MX27_PAD_USB_OC_B = PAD_ID(PB, 24),
+	MX27_PAD_USBH1_RCV = PAD_ID(PB, 25),
+	MX27_PAD_USBH1_FS = PAD_ID(PB, 26),
+	MX27_PAD_USBH1_OE_B = PAD_ID(PB, 27),
+	MX27_PAD_USBH1_TXDM = PAD_ID(PB, 28),
+	MX27_PAD_USBH1_TXDP = PAD_ID(PB, 29),
+	MX27_PAD_USBH1_RXDM = PAD_ID(PB, 30),
+	MX27_PAD_USBH1_RXDP = PAD_ID(PB, 31),
+
+	MX27_PAD_UNUSED4 = PAD_ID(PC, 0),
+	MX27_PAD_UNUSED5 = PAD_ID(PC, 1),
+	MX27_PAD_UNUSED6 = PAD_ID(PC, 2),
+	MX27_PAD_UNUSED7 = PAD_ID(PC, 3),
+	MX27_PAD_UNUSED8 = PAD_ID(PC, 4),
+	MX27_PAD_I2C2_SDA = PAD_ID(PC, 5),
+	MX27_PAD_I2C2_SCL = PAD_ID(PC, 6),
+	MX27_PAD_USBOTG_DATA5 = PAD_ID(PC, 7),
+	MX27_PAD_USBOTG_DATA6 = PAD_ID(PC, 8),
+	MX27_PAD_USBOTG_DATA0 = PAD_ID(PC, 9),
+	MX27_PAD_USBOTG_DATA2 = PAD_ID(PC, 10),
+	MX27_PAD_USBOTG_DATA1 = PAD_ID(PC, 11),
+	MX27_PAD_USBOTG_DATA4 = PAD_ID(PC, 12),
+	MX27_PAD_USBOTG_DATA3 = PAD_ID(PC, 13),
+	MX27_PAD_TOUT = PAD_ID(PC, 14),
+	MX27_PAD_TIN = PAD_ID(PC, 15),
+	MX27_PAD_SSI4_FS = PAD_ID(PC, 16),
+	MX27_PAD_SSI4_RXDAT = PAD_ID(PC, 17),
+	MX27_PAD_SSI4_TXDAT = PAD_ID(PC, 18),
+	MX27_PAD_SSI4_CLK = PAD_ID(PC, 19),
+	MX27_PAD_SSI1_FS = PAD_ID(PC, 20),
+	MX27_PAD_SSI1_RXDAT = PAD_ID(PC, 21),
+	MX27_PAD_SSI1_TXDAT = PAD_ID(PC, 22),
+	MX27_PAD_SSI1_CLK = PAD_ID(PC, 23),
+	MX27_PAD_SSI2_FS = PAD_ID(PC, 24),
+	MX27_PAD_SSI2_RXDAT = PAD_ID(PC, 25),
+	MX27_PAD_SSI2_TXDAT = PAD_ID(PC, 26),
+	MX27_PAD_SSI2_CLK = PAD_ID(PC, 27),
+	MX27_PAD_SSI3_FS = PAD_ID(PC, 28),
+	MX27_PAD_SSI3_RXDAT = PAD_ID(PC, 29),
+	MX27_PAD_SSI3_TXDAT = PAD_ID(PC, 30),
+	MX27_PAD_SSI3_CLK = PAD_ID(PC, 31),
+
+	MX27_PAD_SD3_CMD = PAD_ID(PD, 0),
+	MX27_PAD_SD3_CLK = PAD_ID(PD, 1),
+	MX27_PAD_ATA_DATA0 = PAD_ID(PD, 2),
+	MX27_PAD_ATA_DATA1 = PAD_ID(PD, 3),
+	MX27_PAD_ATA_DATA2 = PAD_ID(PD, 4),
+	MX27_PAD_ATA_DATA3 = PAD_ID(PD, 5),
+	MX27_PAD_ATA_DATA4 = PAD_ID(PD, 6),
+	MX27_PAD_ATA_DATA5 = PAD_ID(PD, 7),
+	MX27_PAD_ATA_DATA6 = PAD_ID(PD, 8),
+	MX27_PAD_ATA_DATA7 = PAD_ID(PD, 9),
+	MX27_PAD_ATA_DATA8 = PAD_ID(PD, 10),
+	MX27_PAD_ATA_DATA9 = PAD_ID(PD, 11),
+	MX27_PAD_ATA_DATA10 = PAD_ID(PD, 12),
+	MX27_PAD_ATA_DATA11 = PAD_ID(PD, 13),
+	MX27_PAD_ATA_DATA12 = PAD_ID(PD, 14),
+	MX27_PAD_ATA_DATA13 = PAD_ID(PD, 15),
+	MX27_PAD_ATA_DATA14 = PAD_ID(PD, 16),
+	MX27_PAD_I2C_DATA = PAD_ID(PD, 17),
+	MX27_PAD_I2C_CLK = PAD_ID(PD, 18),
+	MX27_PAD_CSPI2_SS2 = PAD_ID(PD, 19),
+	MX27_PAD_CSPI2_SS1 = PAD_ID(PD, 20),
+	MX27_PAD_CSPI2_SS0 = PAD_ID(PD, 21),
+	MX27_PAD_CSPI2_SCLK = PAD_ID(PD, 22),
+	MX27_PAD_CSPI2_MISO = PAD_ID(PD, 23),
+	MX27_PAD_CSPI2_MOSI = PAD_ID(PD, 24),
+	MX27_PAD_CSPI1_RDY = PAD_ID(PD, 25),
+	MX27_PAD_CSPI1_SS2 = PAD_ID(PD, 26),
+	MX27_PAD_CSPI1_SS1 = PAD_ID(PD, 27),
+	MX27_PAD_CSPI1_SS0 = PAD_ID(PD, 28),
+	MX27_PAD_CSPI1_SCLK = PAD_ID(PD, 29),
+	MX27_PAD_CSPI1_MISO = PAD_ID(PD, 30),
+	MX27_PAD_CSPI1_MOSI = PAD_ID(PD, 31),
+
+	MX27_PAD_USBOTG_NXT = PAD_ID(PE, 0),
+	MX27_PAD_USBOTG_STP = PAD_ID(PE, 1),
+	MX27_PAD_USBOTG_DIR = PAD_ID(PE, 2),
+	MX27_PAD_UART2_CTS = PAD_ID(PE, 3),
+	MX27_PAD_UART2_RTS = PAD_ID(PE, 4),
+	MX27_PAD_PWMO = PAD_ID(PE, 5),
+	MX27_PAD_UART2_TXD = PAD_ID(PE, 6),
+	MX27_PAD_UART2_RXD = PAD_ID(PE, 7),
+	MX27_PAD_UART3_TXD = PAD_ID(PE, 8),
+	MX27_PAD_UART3_RXD = PAD_ID(PE, 9),
+	MX27_PAD_UART3_CTS = PAD_ID(PE, 10),
+	MX27_PAD_UART3_RTS = PAD_ID(PE, 11),
+	MX27_PAD_UART1_TXD = PAD_ID(PE, 12),
+	MX27_PAD_UART1_RXD = PAD_ID(PE, 13),
+	MX27_PAD_UART1_CTS = PAD_ID(PE, 14),
+	MX27_PAD_UART1_RTS = PAD_ID(PE, 15),
+	MX27_PAD_RTCK = PAD_ID(PE, 16),
+	MX27_PAD_RESET_OUT_B = PAD_ID(PE, 17),
+	MX27_PAD_SD1_D0 = PAD_ID(PE, 18),
+	MX27_PAD_SD1_D1 = PAD_ID(PE, 19),
+	MX27_PAD_SD1_D2 = PAD_ID(PE, 20),
+	MX27_PAD_SD1_D3 = PAD_ID(PE, 21),
+	MX27_PAD_SD1_CMD = PAD_ID(PE, 22),
+	MX27_PAD_SD1_CLK = PAD_ID(PE, 23),
+	MX27_PAD_USBOTG_CLK = PAD_ID(PE, 24),
+	MX27_PAD_USBOTG_DATA7 = PAD_ID(PE, 25),
+	MX27_PAD_UNUSED9 = PAD_ID(PE, 26),
+	MX27_PAD_UNUSED10 = PAD_ID(PE, 27),
+	MX27_PAD_UNUSED11 = PAD_ID(PE, 28),
+	MX27_PAD_UNUSED12 = PAD_ID(PE, 29),
+	MX27_PAD_UNUSED13 = PAD_ID(PE, 30),
+	MX27_PAD_UNUSED14 = PAD_ID(PE, 31),
+
+	MX27_PAD_NFRB = PAD_ID(PF, 0),
+	MX27_PAD_NFCLE = PAD_ID(PF, 1),
+	MX27_PAD_NFWP_B = PAD_ID(PF, 2),
+	MX27_PAD_NFCE_B = PAD_ID(PF, 3),
+	MX27_PAD_NFALE = PAD_ID(PF, 4),
+	MX27_PAD_NFRE_B = PAD_ID(PF, 5),
+	MX27_PAD_NFWE_B = PAD_ID(PF, 6),
+	MX27_PAD_PC_POE = PAD_ID(PF, 7),
+	MX27_PAD_PC_RW_B = PAD_ID(PF, 8),
+	MX27_PAD_IOIS16 = PAD_ID(PF, 9),
+	MX27_PAD_PC_RST = PAD_ID(PF, 10),
+	MX27_PAD_PC_BVD2 = PAD_ID(PF, 11),
+	MX27_PAD_PC_BVD1 = PAD_ID(PF, 12),
+	MX27_PAD_PC_VS2 = PAD_ID(PF, 13),
+	MX27_PAD_PC_VS1 = PAD_ID(PF, 14),
+	MX27_PAD_CLKO = PAD_ID(PF, 15),
+	MX27_PAD_PC_PWRON = PAD_ID(PF, 16),
+	MX27_PAD_PC_READY = PAD_ID(PF, 17),
+	MX27_PAD_PC_WAIT_B = PAD_ID(PF, 18),
+	MX27_PAD_PC_CD2_B = PAD_ID(PF, 19),
+	MX27_PAD_PC_CD1_B = PAD_ID(PF, 20),
+	MX27_PAD_CS4_B = PAD_ID(PF, 21),
+	MX27_PAD_CS5_B = PAD_ID(PF, 22),
+	MX27_PAD_ATA_DATA15 = PAD_ID(PF, 23),
+	MX27_PAD_UNUSED15 = PAD_ID(PF, 24),
+	MX27_PAD_UNUSED16 = PAD_ID(PF, 25),
+	MX27_PAD_UNUSED17 = PAD_ID(PF, 26),
+	MX27_PAD_UNUSED18 = PAD_ID(PF, 27),
+	MX27_PAD_UNUSED19 = PAD_ID(PF, 28),
+	MX27_PAD_UNUSED20 = PAD_ID(PF, 29),
+	MX27_PAD_UNUSED21 = PAD_ID(PF, 30),
+	MX27_PAD_UNUSED22 = PAD_ID(PF, 31),
+};
+
+/* Pad names for the pinmux subsystem */
+static const struct pinctrl_pin_desc imx27_pinctrl_pads[] = {
+	IMX_PINCTRL_PIN(MX27_PAD_USBH2_CLK),
+	IMX_PINCTRL_PIN(MX27_PAD_USBH2_DIR),
+	IMX_PINCTRL_PIN(MX27_PAD_USBH2_DATA7),
+	IMX_PINCTRL_PIN(MX27_PAD_USBH2_NXT),
+	IMX_PINCTRL_PIN(MX27_PAD_USBH2_STP),
+	IMX_PINCTRL_PIN(MX27_PAD_LSCLK),
+	IMX_PINCTRL_PIN(MX27_PAD_LD0),
+	IMX_PINCTRL_PIN(MX27_PAD_LD1),
+	IMX_PINCTRL_PIN(MX27_PAD_LD2),
+	IMX_PINCTRL_PIN(MX27_PAD_LD3),
+	IMX_PINCTRL_PIN(MX27_PAD_LD4),
+	IMX_PINCTRL_PIN(MX27_PAD_LD5),
+	IMX_PINCTRL_PIN(MX27_PAD_LD6),
+	IMX_PINCTRL_PIN(MX27_PAD_LD7),
+	IMX_PINCTRL_PIN(MX27_PAD_LD8),
+	IMX_PINCTRL_PIN(MX27_PAD_LD9),
+	IMX_PINCTRL_PIN(MX27_PAD_LD10),
+	IMX_PINCTRL_PIN(MX27_PAD_LD11),
+	IMX_PINCTRL_PIN(MX27_PAD_LD12),
+	IMX_PINCTRL_PIN(MX27_PAD_LD13),
+	IMX_PINCTRL_PIN(MX27_PAD_LD14),
+	IMX_PINCTRL_PIN(MX27_PAD_LD15),
+	IMX_PINCTRL_PIN(MX27_PAD_LD16),
+	IMX_PINCTRL_PIN(MX27_PAD_LD17),
+	IMX_PINCTRL_PIN(MX27_PAD_REV),
+	IMX_PINCTRL_PIN(MX27_PAD_CLS),
+	IMX_PINCTRL_PIN(MX27_PAD_PS),
+	IMX_PINCTRL_PIN(MX27_PAD_SPL_SPR),
+	IMX_PINCTRL_PIN(MX27_PAD_HSYNC),
+	IMX_PINCTRL_PIN(MX27_PAD_VSYNC),
+	IMX_PINCTRL_PIN(MX27_PAD_CONTRAST),
+	IMX_PINCTRL_PIN(MX27_PAD_OE_ACD),
+
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED0),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED1),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED2),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED3),
+	IMX_PINCTRL_PIN(MX27_PAD_SD2_D0),
+	IMX_PINCTRL_PIN(MX27_PAD_SD2_D1),
+	IMX_PINCTRL_PIN(MX27_PAD_SD2_D2),
+	IMX_PINCTRL_PIN(MX27_PAD_SD2_D3),
+	IMX_PINCTRL_PIN(MX27_PAD_SD2_CMD),
+	IMX_PINCTRL_PIN(MX27_PAD_SD2_CLK),
+	IMX_PINCTRL_PIN(MX27_PAD_CSI_D0),
+	IMX_PINCTRL_PIN(MX27_PAD_CSI_D1),
+	IMX_PINCTRL_PIN(MX27_PAD_CSI_D2),
+	IMX_PINCTRL_PIN(MX27_PAD_CSI_D3),
+	IMX_PINCTRL_PIN(MX27_PAD_CSI_D4),
+	IMX_PINCTRL_PIN(MX27_PAD_CSI_MCLK),
+	IMX_PINCTRL_PIN(MX27_PAD_CSI_PIXCLK),
+	IMX_PINCTRL_PIN(MX27_PAD_CSI_D5),
+	IMX_PINCTRL_PIN(MX27_PAD_CSI_D6),
+	IMX_PINCTRL_PIN(MX27_PAD_CSI_D7),
+	IMX_PINCTRL_PIN(MX27_PAD_CSI_VSYNC),
+	IMX_PINCTRL_PIN(MX27_PAD_CSI_HSYNC),
+	IMX_PINCTRL_PIN(MX27_PAD_USBH1_SUSP),
+	IMX_PINCTRL_PIN(MX27_PAD_USB_PWR),
+	IMX_PINCTRL_PIN(MX27_PAD_USB_OC_B),
+	IMX_PINCTRL_PIN(MX27_PAD_USBH1_RCV),
+	IMX_PINCTRL_PIN(MX27_PAD_USBH1_FS),
+	IMX_PINCTRL_PIN(MX27_PAD_USBH1_OE_B),
+	IMX_PINCTRL_PIN(MX27_PAD_USBH1_TXDM),
+	IMX_PINCTRL_PIN(MX27_PAD_USBH1_TXDP),
+	IMX_PINCTRL_PIN(MX27_PAD_USBH1_RXDM),
+	IMX_PINCTRL_PIN(MX27_PAD_USBH1_RXDP),
+
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED4),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED5),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED6),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED7),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED8),
+	IMX_PINCTRL_PIN(MX27_PAD_I2C2_SDA),
+	IMX_PINCTRL_PIN(MX27_PAD_I2C2_SCL),
+	IMX_PINCTRL_PIN(MX27_PAD_USBOTG_DATA5),
+	IMX_PINCTRL_PIN(MX27_PAD_USBOTG_DATA6),
+	IMX_PINCTRL_PIN(MX27_PAD_USBOTG_DATA0),
+	IMX_PINCTRL_PIN(MX27_PAD_USBOTG_DATA2),
+	IMX_PINCTRL_PIN(MX27_PAD_USBOTG_DATA1),
+	IMX_PINCTRL_PIN(MX27_PAD_USBOTG_DATA4),
+	IMX_PINCTRL_PIN(MX27_PAD_USBOTG_DATA3),
+	IMX_PINCTRL_PIN(MX27_PAD_TOUT),
+	IMX_PINCTRL_PIN(MX27_PAD_TIN),
+	IMX_PINCTRL_PIN(MX27_PAD_SSI4_FS),
+	IMX_PINCTRL_PIN(MX27_PAD_SSI4_RXDAT),
+	IMX_PINCTRL_PIN(MX27_PAD_SSI4_TXDAT),
+	IMX_PINCTRL_PIN(MX27_PAD_SSI4_CLK),
+	IMX_PINCTRL_PIN(MX27_PAD_SSI1_FS),
+	IMX_PINCTRL_PIN(MX27_PAD_SSI1_RXDAT),
+	IMX_PINCTRL_PIN(MX27_PAD_SSI1_TXDAT),
+	IMX_PINCTRL_PIN(MX27_PAD_SSI1_CLK),
+	IMX_PINCTRL_PIN(MX27_PAD_SSI2_FS),
+	IMX_PINCTRL_PIN(MX27_PAD_SSI2_RXDAT),
+	IMX_PINCTRL_PIN(MX27_PAD_SSI2_TXDAT),
+	IMX_PINCTRL_PIN(MX27_PAD_SSI2_CLK),
+	IMX_PINCTRL_PIN(MX27_PAD_SSI3_FS),
+	IMX_PINCTRL_PIN(MX27_PAD_SSI3_RXDAT),
+	IMX_PINCTRL_PIN(MX27_PAD_SSI3_TXDAT),
+	IMX_PINCTRL_PIN(MX27_PAD_SSI3_CLK),
+
+	IMX_PINCTRL_PIN(MX27_PAD_SD3_CMD),
+	IMX_PINCTRL_PIN(MX27_PAD_SD3_CLK),
+	IMX_PINCTRL_PIN(MX27_PAD_ATA_DATA0),
+	IMX_PINCTRL_PIN(MX27_PAD_ATA_DATA1),
+	IMX_PINCTRL_PIN(MX27_PAD_ATA_DATA2),
+	IMX_PINCTRL_PIN(MX27_PAD_ATA_DATA3),
+	IMX_PINCTRL_PIN(MX27_PAD_ATA_DATA4),
+	IMX_PINCTRL_PIN(MX27_PAD_ATA_DATA5),
+	IMX_PINCTRL_PIN(MX27_PAD_ATA_DATA6),
+	IMX_PINCTRL_PIN(MX27_PAD_ATA_DATA7),
+	IMX_PINCTRL_PIN(MX27_PAD_ATA_DATA8),
+	IMX_PINCTRL_PIN(MX27_PAD_ATA_DATA9),
+	IMX_PINCTRL_PIN(MX27_PAD_ATA_DATA10),
+	IMX_PINCTRL_PIN(MX27_PAD_ATA_DATA11),
+	IMX_PINCTRL_PIN(MX27_PAD_ATA_DATA12),
+	IMX_PINCTRL_PIN(MX27_PAD_ATA_DATA13),
+	IMX_PINCTRL_PIN(MX27_PAD_ATA_DATA14),
+	IMX_PINCTRL_PIN(MX27_PAD_I2C_DATA),
+	IMX_PINCTRL_PIN(MX27_PAD_I2C_CLK),
+	IMX_PINCTRL_PIN(MX27_PAD_CSPI2_SS2),
+	IMX_PINCTRL_PIN(MX27_PAD_CSPI2_SS1),
+	IMX_PINCTRL_PIN(MX27_PAD_CSPI2_SS0),
+	IMX_PINCTRL_PIN(MX27_PAD_CSPI2_SCLK),
+	IMX_PINCTRL_PIN(MX27_PAD_CSPI2_MISO),
+	IMX_PINCTRL_PIN(MX27_PAD_CSPI2_MOSI),
+	IMX_PINCTRL_PIN(MX27_PAD_CSPI1_RDY),
+	IMX_PINCTRL_PIN(MX27_PAD_CSPI1_SS2),
+	IMX_PINCTRL_PIN(MX27_PAD_CSPI1_SS1),
+	IMX_PINCTRL_PIN(MX27_PAD_CSPI1_SS0),
+	IMX_PINCTRL_PIN(MX27_PAD_CSPI1_SCLK),
+	IMX_PINCTRL_PIN(MX27_PAD_CSPI1_MISO),
+	IMX_PINCTRL_PIN(MX27_PAD_CSPI1_MOSI),
+
+	IMX_PINCTRL_PIN(MX27_PAD_USBOTG_NXT),
+	IMX_PINCTRL_PIN(MX27_PAD_USBOTG_STP),
+	IMX_PINCTRL_PIN(MX27_PAD_USBOTG_DIR),
+	IMX_PINCTRL_PIN(MX27_PAD_UART2_CTS),
+	IMX_PINCTRL_PIN(MX27_PAD_UART2_RTS),
+	IMX_PINCTRL_PIN(MX27_PAD_PWMO),
+	IMX_PINCTRL_PIN(MX27_PAD_UART2_TXD),
+	IMX_PINCTRL_PIN(MX27_PAD_UART2_RXD),
+	IMX_PINCTRL_PIN(MX27_PAD_UART3_TXD),
+	IMX_PINCTRL_PIN(MX27_PAD_UART3_RXD),
+	IMX_PINCTRL_PIN(MX27_PAD_UART3_CTS),
+	IMX_PINCTRL_PIN(MX27_PAD_UART3_RTS),
+	IMX_PINCTRL_PIN(MX27_PAD_UART1_TXD),
+	IMX_PINCTRL_PIN(MX27_PAD_UART1_RXD),
+	IMX_PINCTRL_PIN(MX27_PAD_UART1_CTS),
+	IMX_PINCTRL_PIN(MX27_PAD_UART1_RTS),
+	IMX_PINCTRL_PIN(MX27_PAD_RTCK),
+	IMX_PINCTRL_PIN(MX27_PAD_RESET_OUT_B),
+	IMX_PINCTRL_PIN(MX27_PAD_SD1_D0),
+	IMX_PINCTRL_PIN(MX27_PAD_SD1_D1),
+	IMX_PINCTRL_PIN(MX27_PAD_SD1_D2),
+	IMX_PINCTRL_PIN(MX27_PAD_SD1_D3),
+	IMX_PINCTRL_PIN(MX27_PAD_SD1_CMD),
+	IMX_PINCTRL_PIN(MX27_PAD_SD1_CLK),
+	IMX_PINCTRL_PIN(MX27_PAD_USBOTG_CLK),
+	IMX_PINCTRL_PIN(MX27_PAD_USBOTG_DATA7),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED9),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED10),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED11),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED12),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED13),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED14),
+
+	IMX_PINCTRL_PIN(MX27_PAD_NFRB),
+	IMX_PINCTRL_PIN(MX27_PAD_NFCLE),
+	IMX_PINCTRL_PIN(MX27_PAD_NFWP_B),
+	IMX_PINCTRL_PIN(MX27_PAD_NFCE_B),
+	IMX_PINCTRL_PIN(MX27_PAD_NFALE),
+	IMX_PINCTRL_PIN(MX27_PAD_NFRE_B),
+	IMX_PINCTRL_PIN(MX27_PAD_NFWE_B),
+	IMX_PINCTRL_PIN(MX27_PAD_PC_POE),
+	IMX_PINCTRL_PIN(MX27_PAD_PC_RW_B),
+	IMX_PINCTRL_PIN(MX27_PAD_IOIS16),
+	IMX_PINCTRL_PIN(MX27_PAD_PC_RST),
+	IMX_PINCTRL_PIN(MX27_PAD_PC_BVD2),
+	IMX_PINCTRL_PIN(MX27_PAD_PC_BVD1),
+	IMX_PINCTRL_PIN(MX27_PAD_PC_VS2),
+	IMX_PINCTRL_PIN(MX27_PAD_PC_VS1),
+	IMX_PINCTRL_PIN(MX27_PAD_CLKO),
+	IMX_PINCTRL_PIN(MX27_PAD_PC_PWRON),
+	IMX_PINCTRL_PIN(MX27_PAD_PC_READY),
+	IMX_PINCTRL_PIN(MX27_PAD_PC_WAIT_B),
+	IMX_PINCTRL_PIN(MX27_PAD_PC_CD2_B),
+	IMX_PINCTRL_PIN(MX27_PAD_PC_CD1_B),
+	IMX_PINCTRL_PIN(MX27_PAD_CS4_B),
+	IMX_PINCTRL_PIN(MX27_PAD_CS5_B),
+	IMX_PINCTRL_PIN(MX27_PAD_ATA_DATA15),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED15),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED16),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED17),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED18),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED19),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED20),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED21),
+	IMX_PINCTRL_PIN(MX27_PAD_UNUSED22),
+};
+
+static struct imx1_pinctrl_soc_info imx27_pinctrl_info = {
+	.pins = imx27_pinctrl_pads,
+	.npins = ARRAY_SIZE(imx27_pinctrl_pads),
+};
+
+static struct of_device_id imx27_pinctrl_of_match[] = {
+	{ .compatible = "fsl,imx27-iomuxc", },
+	{ /* sentinel */ }
+};
+
+struct imx27_pinctrl_private {
+	int num_gpio_childs;
+	struct platform_device **gpio_dev;
+	struct mxc_gpio_platform_data *gpio_pdata;
+};
+
+static int imx27_pinctrl_probe(struct platform_device *pdev)
+{
+	return imx1_pinctrl_core_probe(pdev, &imx27_pinctrl_info);
+}
+
+static struct platform_driver imx27_pinctrl_driver = {
+	.driver = {
+		.name = "imx27-pinctrl",
+		.owner = THIS_MODULE,
+		.of_match_table = of_match_ptr(imx27_pinctrl_of_match),
+	},
+	.probe = imx27_pinctrl_probe,
+	.remove = imx1_pinctrl_core_remove,
+};
+
+static int __init imx27_pinctrl_init(void)
+{
+	return platform_driver_register(&imx27_pinctrl_driver);
+}
+arch_initcall(imx27_pinctrl_init);
+
+static void __exit imx27_pinctrl_exit(void)
+{
+	platform_driver_unregister(&imx27_pinctrl_driver);
+}
+module_exit(imx27_pinctrl_exit);
+MODULE_AUTHOR("Markus Pargmann <mpa@pengutronix.de>");
+MODULE_DESCRIPTION("Freescale IMX27 pinctrl driver");
+MODULE_LICENSE("GPL v2");
-- 
cgit 


From 956c4fee446c568ad102625da931e259f22c67ee Mon Sep 17 00:00:00 2001
From: Benny Halevy <bhalevy@primarydata.com>
Date: Tue, 29 Oct 2013 11:39:12 +0200
Subject: nfsd4: need to destroy revoked delegations in destroy_client

[use list_splice_init]
Signed-off-by: Benny Halevy <bhalevy@primarydata.com>
[bfields: no need for recall_lock here]
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/nfs4state.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index a90949aefe80..21eb6788cb33 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -1129,6 +1129,11 @@ destroy_client(struct nfs4_client *clp)
 		dp = list_entry(reaplist.next, struct nfs4_delegation, dl_recall_lru);
 		destroy_delegation(dp);
 	}
+	list_splice_init(&clp->cl_revoked, &reaplist);
+	while (!list_empty(&reaplist)) {
+		dp = list_entry(reaplist.next, struct nfs4_delegation, dl_recall_lru);
+		destroy_revoked_delegation(dp);
+	}
 	while (!list_empty(&clp->cl_openowners)) {
 		oo = list_entry(clp->cl_openowners.next, struct nfs4_openowner, oo_perclient);
 		release_openowner(oo);
-- 
cgit 


From 4d9784522588302dccb7088c0d7dc541719e6d07 Mon Sep 17 00:00:00 2001
From: Luka Perkov <luka@openwrt.org>
Date: Tue, 29 Oct 2013 02:24:34 +0100
Subject: staging: octeon: drop redundant mac address check

Checking if MAC address is valid using is_valid_ether_addr() is already done in
of_get_mac_address().

Signed-off-by: Luka Perkov <luka@openwrt.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/octeon/ethernet.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c
index 8aba66e4a3e4..bd6ca7164049 100644
--- a/drivers/staging/octeon/ethernet.c
+++ b/drivers/staging/octeon/ethernet.c
@@ -455,7 +455,7 @@ int cvm_oct_common_init(struct net_device *dev)
 	if (priv->of_node)
 		mac = of_get_mac_address(priv->of_node);
 
-	if (mac && is_valid_ether_addr(mac))
+	if (mac)
 		memcpy(dev->dev_addr, mac, ETH_ALEN);
 	else
 		eth_hw_addr_random(dev);
-- 
cgit 


From f99a92c3ee7298426247a12d5649f8bde70fbcd4 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Wed, 23 Oct 2013 12:14:53 -0700
Subject: staging: Remove OOM message after input_allocate_device

Emitting an OOM message isn't necessary after input_allocate_device
as there's a generic OOM and a dump_stack already done.

Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/cptm1217/clearpad_tm1217.c    | 2 --
 drivers/staging/iio/adc/mxs-lradc.c           | 4 +---
 drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c | 2 --
 3 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/staging/cptm1217/clearpad_tm1217.c b/drivers/staging/cptm1217/clearpad_tm1217.c
index 42a5f5c8d3d1..ca4c2c67dd88 100644
--- a/drivers/staging/cptm1217/clearpad_tm1217.c
+++ b/drivers/staging/cptm1217/clearpad_tm1217.c
@@ -457,8 +457,6 @@ static int cp_tm1217_probe(struct i2c_client *client,
 	for (i = 0; i < TOUCH_SUPPORTED; i++) {
 		input_dev = input_allocate_device();
 		if (input_dev == NULL) {
-			dev_err(ts->dev,
-				"cp_tm1217:Input Device Struct alloc failed\n");
 			retval = -ENOMEM;
 			goto fail;
 		}
diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index 1bb03e196aa7..aeae76b77be5 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -868,10 +868,8 @@ static int mxs_lradc_ts_register(struct mxs_lradc *lradc)
 		return 0;
 
 	input = input_allocate_device();
-	if (!input) {
-		dev_err(dev, "Failed to allocate TS device!\n");
+	if (!input)
 		return -ENOMEM;
-	}
 
 	input->name = DRIVER_NAME;
 	input->id.bustype = BUS_HOST;
diff --git a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
index 386362c9964f..28b393071026 100644
--- a/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
+++ b/drivers/staging/ste_rmi4/synaptics_i2c_rmi4.c
@@ -911,8 +911,6 @@ static int synaptics_rmi4_probe
 
 	rmi4_data->input_dev = input_allocate_device();
 	if (rmi4_data->input_dev == NULL) {
-		dev_err(&client->dev, "%s:input device alloc failed\n",
-						__func__);
 		retval = -ENOMEM;
 		goto err_input;
 	}
-- 
cgit 


From 0d1206be229697f897f00822bc142e66da731417 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Mon, 21 Oct 2013 22:15:05 -0500
Subject: staging: r8188eu: Set device type to wlan

The latest version of NetworkManager does not recognize the device as wireless
without this change.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> # [3.12+]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/os_dep/os_intfs.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/staging/rtl8188eu/os_dep/os_intfs.c b/drivers/staging/rtl8188eu/os_dep/os_intfs.c
index da9f0d5f76f7..17659bb04bef 100644
--- a/drivers/staging/rtl8188eu/os_dep/os_intfs.c
+++ b/drivers/staging/rtl8188eu/os_dep/os_intfs.c
@@ -707,6 +707,10 @@ int rtw_init_netdev_name(struct net_device *pnetdev, const char *ifname)
 	return 0;
 }
 
+static const struct device_type wlan_type = {
+	.name = "wlan",
+};
+
 struct net_device *rtw_init_netdev(struct adapter *old_padapter)
 {
 	struct adapter *padapter;
@@ -722,6 +726,7 @@ struct net_device *rtw_init_netdev(struct adapter *old_padapter)
 	if (!pnetdev)
 		return NULL;
 
+	pnetdev->dev.type = &wlan_type;
 	padapter = rtw_netdev_priv(pnetdev);
 	padapter->pnetdev = pnetdev;
 	DBG_88E("register rtw_netdev_ops to netdev_ops\n");
-- 
cgit 


From 95fd62a1174306d53f529e73a9713764072cc511 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Mon, 21 Oct 2013 10:42:37 +0100
Subject: staging: comedi: adl_pci9118: fix a misaligned comment

As pointed out by Hartley Sweeten, one of my recent patches resulted in
the start of a multi-line comment ending up misaligned.  Fix it.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/adl_pci9118.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/adl_pci9118.c b/drivers/staging/comedi/drivers/adl_pci9118.c
index 0f2e8591c697..986489641ed7 100644
--- a/drivers/staging/comedi/drivers/adl_pci9118.c
+++ b/drivers/staging/comedi/drivers/adl_pci9118.c
@@ -356,7 +356,7 @@ struct pci9118_private {
 	unsigned int ai_scans;			/* number of scans to do */
 	char dma_doublebuf;			/* we can use double buffering */
 	unsigned int dma_actbuf;		/* which buffer is used now */
-	unsigned short *dmabuf_virt[2];			/*
+	unsigned short *dmabuf_virt[2];		/*
 						 * pointers to begin of
 						 * DMA buffer
 						 */
-- 
cgit 


From 2eaaccdeabf34ad70ecb7eb9c4aafa08b13a0e66 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 25 Oct 2013 17:07:18 +0800
Subject: staging: drm/imx: fix return value check in imx_drm_init()

In case of error, the function platform_device_register_simple() returns
ERR_PTR() and never returns NULL. The NULL test in the return value check
should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/imx-drm/imx-drm-core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c
index d2fb699c0d1d..4483d47f7395 100644
--- a/drivers/staging/imx-drm/imx-drm-core.c
+++ b/drivers/staging/imx-drm/imx-drm-core.c
@@ -852,8 +852,8 @@ static int __init imx_drm_init(void)
 	INIT_LIST_HEAD(&imx_drm_device->encoder_list);
 
 	imx_drm_pdev = platform_device_register_simple("imx-drm", -1, NULL, 0);
-	if (!imx_drm_pdev) {
-		ret = -EINVAL;
+	if (IS_ERR(imx_drm_pdev)) {
+		ret = PTR_ERR(imx_drm_pdev);
 		goto err_pdev;
 	}
 
-- 
cgit 


From 0830ada537ae50db3b2184df423e886b538989fa Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Mon, 21 Oct 2013 10:10:36 +0100
Subject: staging: comedi: s626: make CRA and CRB setup conversions more
 readable

Use the new macros defined in "s626.h" for constructing and decomposing
'CRA', 'CRB' and standardized encoder setup values to make the
conversions between standardized encoder setup values, and CRA/CRB
register values easier to follow.

There is some messing about with the 'IndxSrc' values which are 1-bit
wide in the standardized encoder setup, and 2-bit wide in the 'CRA' and
'CRB' register values.  This will be addressed by a later patch.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 317 ++++++++++++++++------------------
 1 file changed, 151 insertions(+), 166 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 92062ed0ac20..3fd544777abd 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -656,7 +656,7 @@ static void s626_set_latch_source(struct comedi_device *dev,
 {
 	s626_debi_replace(dev, k->my_crb,
 			  ~(S626_CRBMSK_INTCTRL | S626_CRBMSK_LATCHSRC),
-			  value << S626_CRBBIT_LATCHSRC);
+			  S626_SET_CRB_LATCHSRC(value));
 }
 
 /*
@@ -678,14 +678,16 @@ static void s626_reset_cap_flags_a(struct comedi_device *dev,
 				   const struct s626_enc_info *k)
 {
 	s626_debi_replace(dev, k->my_crb, ~S626_CRBMSK_INTCTRL,
-			  S626_CRBMSK_INTRESETCMD | S626_CRBMSK_INTRESET_A);
+			  (S626_SET_CRB_INTRESETCMD(1) |
+			   S626_SET_CRB_INTRESET_A(1)));
 }
 
 static void s626_reset_cap_flags_b(struct comedi_device *dev,
 				   const struct s626_enc_info *k)
 {
 	s626_debi_replace(dev, k->my_crb, ~S626_CRBMSK_INTCTRL,
-			  S626_CRBMSK_INTRESETCMD | S626_CRBMSK_INTRESET_B);
+			  (S626_SET_CRB_INTRESETCMD(1) |
+			   S626_SET_CRB_INTRESET_B(1)));
 }
 
 /*
@@ -698,6 +700,7 @@ static uint16_t s626_get_mode_a(struct comedi_device *dev,
 	uint16_t cra;
 	uint16_t crb;
 	uint16_t setup;
+	unsigned cntsrc, clkmult, clkpol, encmode;
 
 	/* Fetch CRA and CRB register images. */
 	cra = s626_debi_read(dev, k->my_cra);
@@ -707,44 +710,41 @@ static uint16_t s626_get_mode_a(struct comedi_device *dev,
 	 * Populate the standardized counter setup bit fields.
 	 * Note: IndexSrc is restricted to ENC_X or IndxPol.
 	 */
-	setup = (cra & S626_STDMSK_LOADSRC) |	/* LoadSrc  = LoadSrcA. */
-		((crb << (S626_STDBIT_LATCHSRC - S626_CRBBIT_LATCHSRC)) &
-		 S626_STDMSK_LATCHSRC) |	/* LatchSrc = LatchSrcA. */
-		((cra << (S626_STDBIT_INTSRC - S626_CRABIT_INTSRC_A)) &
-		 S626_STDMSK_INTSRC) |		/* IntSrc   = IntSrcA. */
-		((cra << (S626_STDBIT_INDXSRC - (S626_CRABIT_INDXSRC_A + 1))) &
-		 S626_STDMSK_INDXSRC) |		/* IndxSrc  = IndxSrcA<1>. */
-		((cra >> (S626_CRABIT_INDXPOL_A - S626_STDBIT_INDXPOL)) &
-		 S626_STDMSK_INDXPOL) |		/* IndxPol  = IndxPolA. */
-		((crb >> (S626_CRBBIT_CLKENAB_A - S626_STDBIT_CLKENAB)) &
-		 S626_STDMSK_CLKENAB);		/* ClkEnab  = ClkEnabA. */
+	setup =
+		/* LoadSrc  = LoadSrcA. */
+		S626_SET_STD_LOADSRC(S626_GET_CRA_LOADSRC_A(cra)) |
+		/* LatchSrc = LatchSrcA. */
+		S626_SET_STD_LATCHSRC(S626_GET_CRB_LATCHSRC(crb)) |
+		/* IntSrc   = IntSrcA. */
+		S626_SET_STD_INTSRC(S626_GET_CRA_INTSRC_A(cra)) |
+		/* IndxSrc  = IndxSrcA<1>. */
+		S626_SET_STD_INDXSRC(S626_GET_CRA_INDXSRC_A(cra) >> 1) |
+		/* IndxPol  = IndxPolA. */
+		S626_SET_STD_INDXPOL(S626_GET_CRA_INDXPOL_A(cra)) |
+		/* ClkEnab  = ClkEnabA. */
+		S626_SET_STD_CLKENAB(S626_GET_CRB_CLKENAB_A(crb));
 
 	/* Adjust mode-dependent parameters. */
-	if (cra & (S626_CNTSRC_SYSCLK << S626_CRABIT_CNTSRC_A)) {
+	cntsrc = S626_GET_CRA_CNTSRC_A(cra);
+	if (cntsrc & S626_CNTSRC_SYSCLK) {
 		/* Timer mode (CntSrcA<1> == 1): */
-		/* Indicate Timer mode. */
-		setup |= S626_ENCMODE_TIMER << S626_STDBIT_ENCMODE;
+		encmode = S626_ENCMODE_TIMER;
 		/* Set ClkPol to indicate count direction (CntSrcA<0>). */
-		setup |= (cra << (S626_STDBIT_CLKPOL - S626_CRABIT_CNTSRC_A)) &
-			 S626_STDMSK_CLKPOL;
+		clkpol = cntsrc & 1;
 		/* ClkMult must be 1x in Timer mode. */
-		setup |= S626_MULT_X1 << S626_STDBIT_CLKMULT;
+		clkmult = S626_MULT_X1;
 	} else {
 		/* Counter mode (CntSrcA<1> == 0): */
-		/* Indicate Counter mode. */
-		setup |= S626_ENCMODE_COUNTER << S626_STDBIT_ENCMODE;
+		encmode = S626_ENCMODE_COUNTER;
 		/* Pass through ClkPol. */
-		setup |= (cra >> (S626_CRABIT_CLKPOL_A - S626_STDBIT_CLKPOL)) &
-			 S626_STDMSK_CLKPOL;
+		clkpol = S626_GET_CRA_CLKPOL_A(cra);
 		/* Force ClkMult to 1x if not legal, else pass through. */
-		if ((cra & S626_CRAMSK_CLKMULT_A) ==
-		    (S626_MULT_X0 << S626_CRABIT_CLKMULT_A))
-			setup |= S626_MULT_X1 << S626_STDBIT_CLKMULT;
-		else
-			setup |= (cra >> (S626_CRABIT_CLKMULT_A -
-					  S626_STDBIT_CLKMULT)) &
-				 S626_STDMSK_CLKMULT;
+		clkmult = S626_GET_CRA_CLKMULT_A(cra);
+		if (clkmult == S626_MULT_X0)
+			clkmult = S626_MULT_X1;
 	}
+	setup |= S626_SET_STD_ENCMODE(encmode) | S626_SET_STD_CLKMULT(clkmult) |
+		 S626_SET_STD_CLKPOL(clkpol);
 
 	/* Return adjusted counter setup. */
 	return setup;
@@ -756,6 +756,7 @@ static uint16_t s626_get_mode_b(struct comedi_device *dev,
 	uint16_t cra;
 	uint16_t crb;
 	uint16_t setup;
+	unsigned cntsrc, clkmult, clkpol, encmode;
 
 	/* Fetch CRA and CRB register images. */
 	cra = s626_debi_read(dev, k->my_cra);
@@ -765,50 +766,46 @@ static uint16_t s626_get_mode_b(struct comedi_device *dev,
 	 * Populate the standardized counter setup bit fields.
 	 * Note: IndexSrc is restricted to ENC_X or IndxPol.
 	 */
-	setup = ((crb << (S626_STDBIT_INTSRC - S626_CRBBIT_INTSRC_B)) &
-		 S626_STDMSK_INTSRC) |		/* IntSrc   = IntSrcB. */
-		((crb << (S626_STDBIT_LATCHSRC - S626_CRBBIT_LATCHSRC)) &
-		 S626_STDMSK_LATCHSRC) |	/* LatchSrc = LatchSrcB. */
-		((crb << (S626_STDBIT_LOADSRC - S626_CRBBIT_LOADSRC_B)) &
-		 S626_STDMSK_LOADSRC) |		/* LoadSrc  = LoadSrcB. */
-		((crb << (S626_STDBIT_INDXPOL - S626_CRBBIT_INDXPOL_B)) &
-		 S626_STDMSK_INDXPOL) |		/* IndxPol  = IndxPolB. */
-		((crb >> (S626_CRBBIT_CLKENAB_B - S626_STDBIT_CLKENAB)) &
-		 S626_STDMSK_CLKENAB) |		/* ClkEnab  = ClkEnabB. */
-		((cra >> ((S626_CRABIT_INDXSRC_B + 1) - S626_STDBIT_INDXSRC)) &
-		 S626_STDMSK_INDXSRC);		/* IndxSrc  = IndxSrcB<1>. */
+	setup =
+		/* IntSrc   = IntSrcB. */
+		S626_SET_STD_INTSRC(S626_GET_CRB_INTSRC_B(crb)) |
+		/* LatchSrc = LatchSrcB. */
+		S626_SET_STD_LATCHSRC(S626_GET_CRB_LATCHSRC(crb)) |
+		/* LoadSrc  = LoadSrcB. */
+		S626_SET_STD_LOADSRC(S626_GET_CRB_LOADSRC_B(crb)) |
+		/* IndxPol  = IndxPolB. */
+		S626_SET_STD_INDXPOL(S626_GET_CRB_INDXPOL_B(crb)) |
+		/* ClkEnab  = ClkEnabB. */
+		S626_SET_STD_CLKENAB(S626_GET_CRB_CLKENAB_B(crb)) |
+		/* IndxSrc  = IndxSrcB<1>. */
+		S626_SET_STD_INDXSRC(S626_GET_CRA_INDXSRC_B(cra) >> 1);
 
 	/* Adjust mode-dependent parameters. */
-	if ((crb & S626_CRBMSK_CLKMULT_B) ==
-	    (S626_MULT_X0 << S626_CRBBIT_CLKMULT_B)) {
+	cntsrc = S626_GET_CRA_CNTSRC_B(cra);
+	clkmult = S626_GET_CRB_CLKMULT_B(crb);
+	if (clkmult == S626_MULT_X0) {
 		/* Extender mode (ClkMultB == S626_MULT_X0): */
-		/* Indicate Extender mode. */
-		setup |= S626_ENCMODE_EXTENDER << S626_STDBIT_ENCMODE;
+		encmode = S626_ENCMODE_EXTENDER;
 		/* Indicate multiplier is 1x. */
-		setup |= S626_MULT_X1 << S626_STDBIT_CLKMULT;
+		clkmult = S626_MULT_X1;
 		/* Set ClkPol equal to Timer count direction (CntSrcB<0>). */
-		setup |= (cra >> (S626_CRABIT_CNTSRC_B - S626_STDBIT_CLKPOL)) &
-			 S626_STDMSK_CLKPOL;
-	} else if (cra & (S626_CNTSRC_SYSCLK << S626_CRABIT_CNTSRC_B)) {
+		clkpol = cntsrc & 1;
+	} else if (cntsrc & S626_CNTSRC_SYSCLK) {
 		/* Timer mode (CntSrcB<1> == 1): */
-		/* Indicate Timer mode. */
-		setup |= S626_ENCMODE_TIMER << S626_STDBIT_ENCMODE;
+		encmode = S626_ENCMODE_TIMER;
 		/* Indicate multiplier is 1x. */
-		setup |= S626_MULT_X1 << S626_STDBIT_CLKMULT;
+		clkmult = S626_MULT_X1;
 		/* Set ClkPol equal to Timer count direction (CntSrcB<0>). */
-		setup |= (cra >> (S626_CRABIT_CNTSRC_B - S626_STDBIT_CLKPOL)) &
-			 S626_STDMSK_CLKPOL;
+		clkpol = cntsrc & 1;
 	} else {
 		/* If Counter mode (CntSrcB<1> == 0): */
-		/* Indicate Counter mode. */
-		setup |= S626_ENCMODE_COUNTER << S626_STDBIT_ENCMODE;
+		encmode = S626_ENCMODE_COUNTER;
 		/* Clock multiplier is passed through. */
-		setup |= (crb >> (S626_CRBBIT_CLKMULT_B -
-				  S626_STDBIT_CLKMULT)) & S626_STDMSK_CLKMULT;
 		/* Clock polarity is passed through. */
-		setup |= (crb << (S626_STDBIT_CLKPOL - S626_CRBBIT_CLKPOL_B)) &
-			 S626_STDMSK_CLKPOL;
+		clkpol = S626_GET_CRB_CLKPOL_B(crb);
 	}
+	setup |= S626_SET_STD_ENCMODE(encmode) | S626_SET_STD_CLKMULT(clkmult) |
+		 S626_SET_STD_CLKPOL(clkpol);
 
 	/* Return adjusted counter setup. */
 	return setup;
@@ -827,64 +824,58 @@ static void s626_set_mode_a(struct comedi_device *dev,
 	struct s626_private *devpriv = dev->private;
 	uint16_t cra;
 	uint16_t crb;
+	unsigned cntsrc, clkmult, clkpol;
 
 	/* Initialize CRA and CRB images. */
 	/* Preload trigger is passed through. */
-	cra = setup & S626_CRAMSK_LOADSRC_A;
+	cra = S626_SET_CRA_LOADSRC_A(S626_GET_STD_LOADSRC(setup));
 	/* IndexSrc is restricted to ENC_X or IndxPol. */
-	cra |= (setup & S626_STDMSK_INDXSRC) >>
-	       (S626_STDBIT_INDXSRC - (S626_CRABIT_INDXSRC_A + 1));
+	cra |= S626_SET_CRA_INDXSRC_A(S626_GET_STD_INDXSRC(setup) << 1);
 
 	/* Reset any pending CounterA event captures. */
-	crb = S626_CRBMSK_INTRESETCMD | S626_CRBMSK_INTRESET_A;
+	crb = S626_SET_CRB_INTRESETCMD(1) | S626_SET_CRB_INTRESET_A(1);
 	/* Clock enable is passed through. */
-	crb |= (setup & S626_STDMSK_CLKENAB) <<
-	       (S626_CRBBIT_CLKENAB_A - S626_STDBIT_CLKENAB);
+	crb |= S626_SET_CRB_CLKENAB_A(S626_GET_STD_CLKENAB(setup));
 
 	/* Force IntSrc to Disabled if disable_int_src is asserted. */
 	if (!disable_int_src)
-		cra |= (setup & S626_STDMSK_INTSRC) >>
-		       (S626_STDBIT_INTSRC - S626_CRABIT_INTSRC_A);
+		cra |= S626_SET_CRA_INTSRC_A(S626_GET_STD_INTSRC(setup));
 
 	/* Populate all mode-dependent attributes of CRA & CRB images. */
-	switch ((setup & S626_STDMSK_ENCMODE) >> S626_STDBIT_ENCMODE) {
+	clkpol = S626_GET_STD_CLKPOL(setup);
+	switch (S626_GET_STD_ENCMODE(setup)) {
 	case S626_ENCMODE_EXTENDER: /* Extender Mode: */
 		/* Force to Timer mode (Extender valid only for B counters). */
 		/* Fall through to case S626_ENCMODE_TIMER: */
 	case S626_ENCMODE_TIMER:	/* Timer Mode: */
 		/* CntSrcA<1> selects system clock */
-		cra |= S626_CNTSRC_SYSCLK << S626_CRABIT_CNTSRC_A;
+		cntsrc = S626_CNTSRC_SYSCLK;
 		/* Count direction (CntSrcA<0>) obtained from ClkPol. */
-		cra |= (setup & S626_STDMSK_CLKPOL) >>
-		       (S626_STDBIT_CLKPOL - S626_CRABIT_CNTSRC_A);
+		cntsrc |= clkpol;
 		/* ClkPolA behaves as always-on clock enable. */
-		cra |= 1 << S626_CRABIT_CLKPOL_A;
+		clkpol = 1;
 		/* ClkMult must be 1x. */
-		cra |= S626_MULT_X1 << S626_CRABIT_CLKMULT_A;
+		clkmult = S626_MULT_X1;
 		break;
 	default:		/* Counter Mode: */
 		/* Select ENC_C and ENC_D as clock/direction inputs. */
-		cra |= S626_CNTSRC_ENCODER << S626_CRABIT_CNTSRC_A;
+		cntsrc = S626_CNTSRC_ENCODER;
 		/* Clock polarity is passed through. */
-		cra |= (setup & S626_STDMSK_CLKPOL) <<
-		       (S626_CRABIT_CLKPOL_A - S626_STDBIT_CLKPOL);
 		/* Force multiplier to x1 if not legal, else pass through. */
-		if ((setup & S626_STDMSK_CLKMULT) ==
-		    (S626_MULT_X0 << S626_STDBIT_CLKMULT))
-			cra |= S626_MULT_X1 << S626_CRABIT_CLKMULT_A;
-		else
-			cra |= (setup & S626_STDMSK_CLKMULT) <<
-			       (S626_CRABIT_CLKMULT_A - S626_STDBIT_CLKMULT);
+		clkmult = S626_GET_STD_CLKMULT(setup);
+		if (clkmult == S626_MULT_X0)
+			clkmult = S626_MULT_X1;
 		break;
 	}
+	cra |= S626_SET_CRA_CNTSRC_A(cntsrc) | S626_SET_CRA_CLKPOL_A(clkpol) |
+	       S626_SET_CRA_CLKMULT_A(clkmult);
 
 	/*
 	 * Force positive index polarity if IndxSrc is software-driven only,
 	 * otherwise pass it through.
 	 */
-	if (~setup & S626_STDMSK_INDXSRC)
-		cra |= (setup & S626_STDMSK_INDXPOL) <<
-		       (S626_CRABIT_INDXPOL_A - S626_STDBIT_INDXPOL);
+	if (S626_GET_STD_INDXSRC(setup) == S626_INDXSRC_HARD)
+		cra |= S626_SET_CRA_INDXPOL_A(S626_GET_STD_INDXPOL(setup));
 
 	/*
 	 * If IntSrc has been forced to Disabled, update the MISC2 interrupt
@@ -910,73 +901,65 @@ static void s626_set_mode_b(struct comedi_device *dev,
 	struct s626_private *devpriv = dev->private;
 	uint16_t cra;
 	uint16_t crb;
+	unsigned cntsrc, clkmult, clkpol;
 
 	/* Initialize CRA and CRB images. */
 	/* IndexSrc field is restricted to ENC_X or IndxPol. */
-	cra = (setup & S626_STDMSK_INDXSRC) <<
-	      (S626_CRABIT_INDXSRC_B + 1 - S626_STDBIT_INDXSRC);
+	cra = S626_SET_CRA_INDXSRC_B(S626_GET_STD_INDXSRC(setup) << 1);
 
 	/* Reset event captures and disable interrupts. */
-	crb = S626_CRBMSK_INTRESETCMD | S626_CRBMSK_INTRESET_B;
+	crb = S626_SET_CRB_INTRESETCMD(1) | S626_SET_CRB_INTRESET_B(1);
 	/* Clock enable is passed through. */
-	crb |= (setup & S626_STDMSK_CLKENAB) <<
-	       (S626_CRBBIT_CLKENAB_B - S626_STDBIT_CLKENAB);
+	crb |= S626_SET_CRB_CLKENAB_B(S626_GET_STD_CLKENAB(setup));
 	/* Preload trigger source is passed through. */
-	crb |= (setup & S626_STDMSK_LOADSRC) >>
-	       (S626_STDBIT_LOADSRC - S626_CRBBIT_LOADSRC_B);
+	crb |= S626_SET_CRB_LOADSRC_B(S626_GET_STD_LOADSRC(setup));
 
 	/* Force IntSrc to Disabled if disable_int_src is asserted. */
 	if (!disable_int_src)
-		crb |= (setup & S626_STDMSK_INTSRC) >>
-		       (S626_STDBIT_INTSRC - S626_CRBBIT_INTSRC_B);
+		crb |= S626_SET_CRB_INTSRC_B(S626_GET_STD_INTSRC(setup));
 
 	/* Populate all mode-dependent attributes of CRA & CRB images. */
-	switch ((setup & S626_STDMSK_ENCMODE) >> S626_STDBIT_ENCMODE) {
+	clkpol = S626_GET_STD_CLKPOL(setup);
+	switch (S626_GET_STD_ENCMODE(setup)) {
 	case S626_ENCMODE_TIMER:	/* Timer Mode: */
 		/* CntSrcB<1> selects system clock */
-		cra |= S626_CNTSRC_SYSCLK << S626_CRABIT_CNTSRC_B;
+		cntsrc = S626_CNTSRC_SYSCLK;
 		/* with direction (CntSrcB<0>) obtained from ClkPol. */
-		cra |= (setup & S626_STDMSK_CLKPOL) <<
-		       (S626_CRABIT_CNTSRC_B - S626_STDBIT_CLKPOL);
+		cntsrc |= clkpol;
 		/* ClkPolB behaves as always-on clock enable. */
-		crb |= 1 << S626_CRBBIT_CLKPOL_B;
+		clkpol = 1;
 		/* ClkMultB must be 1x. */
-		crb |= S626_MULT_X1 << S626_CRBBIT_CLKMULT_B;
+		clkmult = S626_MULT_X1;
 		break;
 	case S626_ENCMODE_EXTENDER:	/* Extender Mode: */
 		/* CntSrcB source is OverflowA (same as "timer") */
-		cra |= S626_CNTSRC_SYSCLK << S626_CRABIT_CNTSRC_B;
+		cntsrc = S626_CNTSRC_SYSCLK;
 		/* with direction obtained from ClkPol. */
-		cra |= (setup & S626_STDMSK_CLKPOL) <<
-		       (S626_CRABIT_CNTSRC_B - S626_STDBIT_CLKPOL);
+		cntsrc |= clkpol;
 		/* ClkPolB controls IndexB -- always set to active. */
-		crb |= 1 << S626_CRBBIT_CLKPOL_B;
+		clkpol = 1;
 		/* ClkMultB selects OverflowA as the clock source. */
-		crb |= S626_MULT_X0 << S626_CRBBIT_CLKMULT_B;
+		clkmult = S626_MULT_X0;
 		break;
 	default:		/* Counter Mode: */
 		/* Select ENC_C and ENC_D as clock/direction inputs. */
-		cra |= S626_CNTSRC_ENCODER << S626_CRABIT_CNTSRC_B;
+		cntsrc = S626_CNTSRC_ENCODER;
 		/* ClkPol is passed through. */
-		crb |= (setup & S626_STDMSK_CLKPOL) >>
-		       (S626_STDBIT_CLKPOL - S626_CRBBIT_CLKPOL_B);
 		/* Force ClkMult to x1 if not legal, otherwise pass through. */
-		if ((setup & S626_STDMSK_CLKMULT) ==
-		    (S626_MULT_X0 << S626_STDBIT_CLKMULT))
-			crb |= S626_MULT_X1 << S626_CRBBIT_CLKMULT_B;
-		else
-			crb |= (setup & S626_STDMSK_CLKMULT) <<
-			       (S626_CRBBIT_CLKMULT_B - S626_STDBIT_CLKMULT);
+		clkmult = S626_GET_STD_CLKMULT(setup);
+		if (clkmult == S626_MULT_X0)
+			clkmult = S626_MULT_X1;
 		break;
 	}
+	cra |= S626_SET_CRA_CNTSRC_B(cntsrc);
+	crb |= S626_SET_CRB_CLKPOL_B(clkpol) | S626_SET_CRB_CLKMULT_B(clkmult);
 
 	/*
 	 * Force positive index polarity if IndxSrc is software-driven only,
 	 * otherwise pass it through.
 	 */
-	if (~setup & S626_STDMSK_INDXSRC)
-		crb |= (setup & S626_STDMSK_INDXPOL) >>
-		       (S626_STDBIT_INDXPOL - S626_CRBBIT_INDXPOL_B);
+	if (S626_GET_STD_INDXSRC(setup) == S626_INDXSRC_HARD)
+		crb |= S626_SET_CRB_INDXPOL_B(S626_GET_STD_INDXPOL(setup));
 
 	/*
 	 * If IntSrc has been forced to Disabled, update the MISC2 interrupt
@@ -1003,7 +986,7 @@ static void s626_set_enable_a(struct comedi_device *dev,
 {
 	s626_debi_replace(dev, k->my_crb,
 			  ~(S626_CRBMSK_INTCTRL | S626_CRBMSK_CLKENAB_A),
-			  enab << S626_CRBBIT_CLKENAB_A);
+			  S626_SET_CRB_CLKENAB_A(enab));
 }
 
 static void s626_set_enable_b(struct comedi_device *dev,
@@ -1011,26 +994,26 @@ static void s626_set_enable_b(struct comedi_device *dev,
 {
 	s626_debi_replace(dev, k->my_crb,
 			  ~(S626_CRBMSK_INTCTRL | S626_CRBMSK_CLKENAB_B),
-			  enab << S626_CRBBIT_CLKENAB_B);
+			  S626_SET_CRB_CLKENAB_B(enab));
 }
 
 static uint16_t s626_get_enable_a(struct comedi_device *dev,
 				  const struct s626_enc_info *k)
 {
-	return (s626_debi_read(dev, k->my_crb) >> S626_CRBBIT_CLKENAB_A) & 1;
+	return S626_GET_CRB_CLKENAB_A(s626_debi_read(dev, k->my_crb));
 }
 
 static uint16_t s626_get_enable_b(struct comedi_device *dev,
 				  const struct s626_enc_info *k)
 {
-	return (s626_debi_read(dev, k->my_crb) >> S626_CRBBIT_CLKENAB_B) & 1;
+	return S626_GET_CRB_CLKENAB_B(s626_debi_read(dev, k->my_crb));
 }
 
 #ifdef unused
 static uint16_t s626_get_latch_source(struct comedi_device *dev,
 				      const struct s626_enc_info *k)
 {
-	return (s626_debi_read(dev, k->my_crb) >> S626_CRBBIT_LATCHSRC) & 3;
+	return S626_GET_CRB_LATCHSRC(s626_debi_read(dev, k->my_crb));
 }
 #endif
 
@@ -1043,7 +1026,7 @@ static void s626_set_load_trig_a(struct comedi_device *dev,
 				 const struct s626_enc_info *k, uint16_t trig)
 {
 	s626_debi_replace(dev, k->my_cra, ~S626_CRAMSK_LOADSRC_A,
-			  trig << S626_CRABIT_LOADSRC_A);
+			  S626_SET_CRA_LOADSRC_A(trig));
 }
 
 static void s626_set_load_trig_b(struct comedi_device *dev,
@@ -1051,19 +1034,19 @@ static void s626_set_load_trig_b(struct comedi_device *dev,
 {
 	s626_debi_replace(dev, k->my_crb,
 			  ~(S626_CRBMSK_LOADSRC_B | S626_CRBMSK_INTCTRL),
-			  trig << S626_CRBBIT_LOADSRC_B);
+			  S626_SET_CRB_LOADSRC_B(trig));
 }
 
 static uint16_t s626_get_load_trig_a(struct comedi_device *dev,
 				     const struct s626_enc_info *k)
 {
-	return (s626_debi_read(dev, k->my_cra) >> S626_CRABIT_LOADSRC_A) & 3;
+	return S626_GET_CRA_LOADSRC_A(s626_debi_read(dev, k->my_cra));
 }
 
 static uint16_t s626_get_load_trig_b(struct comedi_device *dev,
 				     const struct s626_enc_info *k)
 {
-	return (s626_debi_read(dev, k->my_crb) >> S626_CRBBIT_LOADSRC_B) & 3;
+	return S626_GET_CRB_LOADSRC_B(s626_debi_read(dev, k->my_crb));
 }
 
 /*
@@ -1079,11 +1062,12 @@ static void s626_set_int_src_a(struct comedi_device *dev,
 
 	/* Reset any pending counter overflow or index captures. */
 	s626_debi_replace(dev, k->my_crb, ~S626_CRBMSK_INTCTRL,
-			  S626_CRBMSK_INTRESETCMD | S626_CRBMSK_INTRESET_A);
+			  (S626_SET_CRB_INTRESETCMD(1) |
+			   S626_SET_CRB_INTRESET_A(1)));
 
 	/* Program counter interrupt source. */
 	s626_debi_replace(dev, k->my_cra, ~S626_CRAMSK_INTSRC_A,
-			  int_source << S626_CRABIT_INTSRC_A);
+			  S626_SET_CRA_INTSRC_A(int_source));
 
 	/* Update MISC2 interrupt enable mask. */
 	devpriv->counter_int_enabs =
@@ -1102,13 +1086,12 @@ static void s626_set_int_src_b(struct comedi_device *dev,
 	crb = s626_debi_read(dev, k->my_crb) & ~S626_CRBMSK_INTCTRL;
 
 	/* Reset any pending counter overflow or index captures. */
-	s626_debi_write(dev, k->my_crb, (crb | S626_CRBMSK_INTRESETCMD |
-					 S626_CRBMSK_INTRESET_B));
+	s626_debi_write(dev, k->my_crb, (crb | S626_SET_CRB_INTRESETCMD(1) |
+					 S626_SET_CRB_INTRESET_B(1)));
 
 	/* Program counter interrupt source. */
-	s626_debi_write(dev, k->my_crb,
-			((crb & ~S626_CRBMSK_INTSRC_B) |
-			 (int_source << S626_CRBBIT_INTSRC_B)));
+	s626_debi_write(dev, k->my_crb, ((crb & ~S626_CRBMSK_INTSRC_B) |
+					 S626_SET_CRB_INTSRC_B(int_source)));
 
 	/* Update MISC2 interrupt enable mask. */
 	devpriv->counter_int_enabs =
@@ -1119,13 +1102,13 @@ static void s626_set_int_src_b(struct comedi_device *dev,
 static uint16_t s626_get_int_src_a(struct comedi_device *dev,
 				   const struct s626_enc_info *k)
 {
-	return (s626_debi_read(dev, k->my_cra) >> S626_CRABIT_INTSRC_A) & 3;
+	return S626_GET_CRA_INTSRC_A(s626_debi_read(dev, k->my_cra));
 }
 
 static uint16_t s626_get_int_src_b(struct comedi_device *dev,
 				   const struct s626_enc_info *k)
 {
-	return (s626_debi_read(dev, k->my_crb) >> S626_CRBBIT_INTSRC_B) & 3;
+	return S626_GET_CRB_INTSRC_B(s626_debi_read(dev, k->my_crb));
 }
 
 #ifdef unused
@@ -1136,13 +1119,13 @@ static void s626_set_clk_mult(struct comedi_device *dev,
 			      const struct s626_enc_info *k, uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~S626_STDMSK_CLKMULT) |
-			    (value << S626_STDBIT_CLKMULT)), false);
+			     S626_SET_STD_CLKMULT(value)), false);
 }
 
 static uint16_t s626_get_clk_mult(struct comedi_device *dev,
 				  const struct s626_enc_info *k)
 {
-	return (k->get_mode(dev, k) >> S626_STDBIT_CLKMULT) & 3;
+	return S626_GET_STD_CLKMULT(k->get_mode(dev, k));
 }
 
 /*
@@ -1152,13 +1135,13 @@ static void s626_set_clk_pol(struct comedi_device *dev,
 			     const struct s626_enc_info *k, uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~S626_STDMSK_CLKPOL) |
-			    (value << S626_STDBIT_CLKPOL)), false);
+			     S626_SET_STD_CLKPOL(value)), false);
 }
 
 static uint16_t s626_get_clk_pol(struct comedi_device *dev,
 				 const struct s626_enc_info *k)
 {
-	return (k->get_mode(dev, k) >> S626_STDBIT_CLKPOL) & 1;
+	return S626_GET_STD_CLKPOL(k->get_mode(dev, k));
 }
 
 /*
@@ -1168,13 +1151,13 @@ static void s626_set_enc_mode(struct comedi_device *dev,
 			      const struct s626_enc_info *k, uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~S626_STDMSK_ENCMODE) |
-			    (value << S626_STDBIT_ENCMODE)), false);
+			     S626_SET_STD_ENCMODE(value)), false);
 }
 
 static uint16_t s626_get_enc_mode(struct comedi_device *dev,
 				  const struct s626_enc_info *k)
 {
-	return (k->get_mode(dev, k) >> S626_STDBIT_ENCMODE) & 3;
+	return S626_GET_STD_ENCMODE(k->get_mode(dev, k));
 }
 
 /*
@@ -1184,13 +1167,13 @@ static void s626_set_index_pol(struct comedi_device *dev,
 			       const struct s626_enc_info *k, uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~S626_STDMSK_INDXPOL) |
-			    ((value != 0) << S626_STDBIT_INDXPOL)), false);
+			     S626_SET_STD_INDXPOL(value != 0)), false);
 }
 
 static uint16_t s626_get_index_pol(struct comedi_device *dev,
 				   const struct s626_enc_info *k)
 {
-	return (k->get_mode(dev, k) >> S626_STDBIT_INDXPOL) & 1;
+	return S626_GET_STD_INDXPOL(k->get_mode(dev, k));
 }
 
 /*
@@ -1200,13 +1183,13 @@ static void s626_set_index_src(struct comedi_device *dev,
 			       const struct s626_enc_info *k, uint16_t value)
 {
 	k->set_mode(dev, k, ((k->get_mode(dev, k) & ~S626_STDMSK_INDXSRC) |
-			    ((value != 0) << S626_STDBIT_INDXSRC)), false);
+			     S626_SET_STD_INDXSRC(value != 0)), false);
 }
 
 static uint16_t s626_get_index_src(struct comedi_device *dev,
 				   const struct s626_enc_info *k)
 {
-	return (k->get_mode(dev, k) >> S626_STDBIT_INDXSRC) & 1;
+	return S626_GET_STD_INDXSRC(k->get_mode(dev, k));
 }
 #endif
 
@@ -2031,16 +2014,17 @@ static void s626_timer_load(struct comedi_device *dev,
 {
 	uint16_t setup =
 		/* Preload upon index. */
-		(S626_LOADSRC_INDX << S626_BF_LOADSRC) |
+		S626_SET_STD_LOADSRC(S626_LOADSRC_INDX) |
 		/* Disable hardware index. */
-		(S626_INDXSRC_SOFT << S626_BF_INDXSRC) |
+		S626_SET_STD_INDXSRC(S626_INDXSRC_SOFT) |
 		/* Operating mode is Timer. */
-		(S626_ENCMODE_TIMER << S626_BF_ENCMODE) |
+		S626_SET_STD_ENCMODE(S626_ENCMODE_TIMER) |
 		/* Count direction is Down. */
-		(S626_CNTDIR_DOWN << S626_BF_CLKPOL) |
+		S626_SET_STD_CLKPOL(S626_CNTDIR_DOWN) |
 		/* Clock multiplier is 1x. */
-		(S626_CLKMULT_1X << S626_BF_CLKMULT) |
-		(S626_CLKENAB_INDEX << S626_BF_CLKENAB);
+		S626_SET_STD_CLKMULT(S626_CLKMULT_1X) |
+		/* Enabled by index */
+		S626_SET_STD_CLKENAB(S626_CLKENAB_INDEX);
 	uint16_t value_latchsrc = S626_LATCHSRC_A_INDXA;
 	/* uint16_t enab = S626_CLKENAB_ALWAYS; */
 
@@ -2423,16 +2407,17 @@ static int s626_enc_insn_config(struct comedi_device *dev,
 {
 	uint16_t setup =
 		/* Preload upon index. */
-		(S626_LOADSRC_INDX << S626_BF_LOADSRC) |
+		S626_SET_STD_LOADSRC(S626_LOADSRC_INDX) |
 		/* Disable hardware index. */
-		(S626_INDXSRC_SOFT << S626_BF_INDXSRC) |
+		S626_SET_STD_INDXSRC(S626_INDXSRC_SOFT) |
 		/* Operating mode is Counter. */
-		(S626_ENCMODE_COUNTER << S626_BF_ENCMODE) |
+		S626_SET_STD_ENCMODE(S626_ENCMODE_COUNTER) |
 		/* Active high clock. */
-		(S626_CLKPOL_POS << S626_BF_CLKPOL) |
+		S626_SET_STD_CLKPOL(S626_CLKPOL_POS) |
 		/* Clock multiplier is 1x. */
-		(S626_CLKMULT_1X << S626_BF_CLKMULT) |
-		(S626_CLKENAB_INDEX << S626_BF_CLKENAB);
+		S626_SET_STD_CLKMULT(S626_CLKMULT_1X) |
+		/* Enabled by index */
+		S626_SET_STD_CLKENAB(S626_CLKENAB_INDEX);
 	/* uint16_t disable_int_src = true; */
 	/* uint32_t Preloadvalue;              //Counter initial value */
 	uint16_t value_latchsrc = S626_LATCHSRC_AB_READ;
@@ -2519,17 +2504,17 @@ static void s626_counters_init(struct comedi_device *dev)
 	const struct s626_enc_info *k;
 	uint16_t setup =
 		/* Preload upon index. */
-		(S626_LOADSRC_INDX << S626_BF_LOADSRC) |
+		S626_SET_STD_LOADSRC(S626_LOADSRC_INDX) |
 		/* Disable hardware index. */
-		(S626_INDXSRC_SOFT << S626_BF_INDXSRC) |
+		S626_SET_STD_INDXSRC(S626_INDXSRC_SOFT) |
 		/* Operating mode is counter. */
-		(S626_ENCMODE_COUNTER << S626_BF_ENCMODE) |
+		S626_SET_STD_ENCMODE(S626_ENCMODE_COUNTER) |
 		/* Active high clock. */
-		(S626_CLKPOL_POS << S626_BF_CLKPOL) |
+		S626_SET_STD_CLKPOL(S626_CLKPOL_POS) |
 		/* Clock multiplier is 1x. */
-		(S626_CLKMULT_1X << S626_BF_CLKMULT) |
+		S626_SET_STD_CLKMULT(S626_CLKMULT_1X) |
 		/* Enabled by index */
-		(S626_CLKENAB_INDEX << S626_BF_CLKENAB);
+		S626_SET_STD_CLKENAB(S626_CLKENAB_INDEX);
 
 	/*
 	 * Disable all counter interrupts and clear any captured counter events.
-- 
cgit 


From 2cea19faf16304125ce12e4b5518110ef77f32a1 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Mon, 21 Oct 2013 10:10:37 +0100
Subject: staging: comedi: s626: expand standardized IndxSrc values

The 'IndxSrc' value for the standardized encoder setup is currently 1
bit wide and takes one of the following values:

  S626_INDXSRC_HARD = 0 // index source from hardware encoder
  S626_INDXSRC_SOFT = 1 // index source software controlled by IndxPol

However the hardware 'IndxSrcA' and 'IndxSrcB' values for the 'A' and
'B' counters are 2 bits wide.  The above standardized values 0 and 1
correspond to the hardware values 0 and 2.

In order to simplify conversions between the standardized values and
hardware values, expand the range of standardized values to cover all
four possible values.  The new values are as follows:

  S626_INDXSRC_ENCODER = 0  // index source from hardware encoder
  S626_INDXSRC_DIGIN = 1    // index source from digital inputs
  S626_INDXSRC_SOFT = 2     // index source s/w controlled by IndxPol
  S626_INDXSRC_DISABLED = 2 // index source disabled

(Note the change in value for `S626_INDXSRC_SOFT` and the replacement of
`S626_INDXSRC_HARD` with `S626_INDXSRC_ENCODER` for consistency with the
`CntSrc` values.)

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 22 ++++++++++------------
 drivers/staging/comedi/drivers/s626.h |  8 +++++---
 2 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 3fd544777abd..c2837da862db 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -708,7 +708,6 @@ static uint16_t s626_get_mode_a(struct comedi_device *dev,
 
 	/*
 	 * Populate the standardized counter setup bit fields.
-	 * Note: IndexSrc is restricted to ENC_X or IndxPol.
 	 */
 	setup =
 		/* LoadSrc  = LoadSrcA. */
@@ -717,8 +716,8 @@ static uint16_t s626_get_mode_a(struct comedi_device *dev,
 		S626_SET_STD_LATCHSRC(S626_GET_CRB_LATCHSRC(crb)) |
 		/* IntSrc   = IntSrcA. */
 		S626_SET_STD_INTSRC(S626_GET_CRA_INTSRC_A(cra)) |
-		/* IndxSrc  = IndxSrcA<1>. */
-		S626_SET_STD_INDXSRC(S626_GET_CRA_INDXSRC_A(cra) >> 1) |
+		/* IndxSrc  = IndxSrcA. */
+		S626_SET_STD_INDXSRC(S626_GET_CRA_INDXSRC_A(cra)) |
 		/* IndxPol  = IndxPolA. */
 		S626_SET_STD_INDXPOL(S626_GET_CRA_INDXPOL_A(cra)) |
 		/* ClkEnab  = ClkEnabA. */
@@ -764,7 +763,6 @@ static uint16_t s626_get_mode_b(struct comedi_device *dev,
 
 	/*
 	 * Populate the standardized counter setup bit fields.
-	 * Note: IndexSrc is restricted to ENC_X or IndxPol.
 	 */
 	setup =
 		/* IntSrc   = IntSrcB. */
@@ -777,8 +775,8 @@ static uint16_t s626_get_mode_b(struct comedi_device *dev,
 		S626_SET_STD_INDXPOL(S626_GET_CRB_INDXPOL_B(crb)) |
 		/* ClkEnab  = ClkEnabB. */
 		S626_SET_STD_CLKENAB(S626_GET_CRB_CLKENAB_B(crb)) |
-		/* IndxSrc  = IndxSrcB<1>. */
-		S626_SET_STD_INDXSRC(S626_GET_CRA_INDXSRC_B(cra) >> 1);
+		/* IndxSrc  = IndxSrcB. */
+		S626_SET_STD_INDXSRC(S626_GET_CRA_INDXSRC_B(cra));
 
 	/* Adjust mode-dependent parameters. */
 	cntsrc = S626_GET_CRA_CNTSRC_B(cra);
@@ -829,8 +827,8 @@ static void s626_set_mode_a(struct comedi_device *dev,
 	/* Initialize CRA and CRB images. */
 	/* Preload trigger is passed through. */
 	cra = S626_SET_CRA_LOADSRC_A(S626_GET_STD_LOADSRC(setup));
-	/* IndexSrc is restricted to ENC_X or IndxPol. */
-	cra |= S626_SET_CRA_INDXSRC_A(S626_GET_STD_INDXSRC(setup) << 1);
+	/* IndexSrc is passed through. */
+	cra |= S626_SET_CRA_INDXSRC_A(S626_GET_STD_INDXSRC(setup));
 
 	/* Reset any pending CounterA event captures. */
 	crb = S626_SET_CRB_INTRESETCMD(1) | S626_SET_CRB_INTRESET_A(1);
@@ -874,7 +872,7 @@ static void s626_set_mode_a(struct comedi_device *dev,
 	 * Force positive index polarity if IndxSrc is software-driven only,
 	 * otherwise pass it through.
 	 */
-	if (S626_GET_STD_INDXSRC(setup) == S626_INDXSRC_HARD)
+	if (S626_GET_STD_INDXSRC(setup) != S626_INDXSRC_SOFT)
 		cra |= S626_SET_CRA_INDXPOL_A(S626_GET_STD_INDXPOL(setup));
 
 	/*
@@ -904,8 +902,8 @@ static void s626_set_mode_b(struct comedi_device *dev,
 	unsigned cntsrc, clkmult, clkpol;
 
 	/* Initialize CRA and CRB images. */
-	/* IndexSrc field is restricted to ENC_X or IndxPol. */
-	cra = S626_SET_CRA_INDXSRC_B(S626_GET_STD_INDXSRC(setup) << 1);
+	/* IndexSrc is passed through. */
+	cra = S626_SET_CRA_INDXSRC_B(S626_GET_STD_INDXSRC(setup));
 
 	/* Reset event captures and disable interrupts. */
 	crb = S626_SET_CRB_INTRESETCMD(1) | S626_SET_CRB_INTRESET_B(1);
@@ -958,7 +956,7 @@ static void s626_set_mode_b(struct comedi_device *dev,
 	 * Force positive index polarity if IndxSrc is software-driven only,
 	 * otherwise pass it through.
 	 */
-	if (S626_GET_STD_INDXSRC(setup) == S626_INDXSRC_HARD)
+	if (S626_GET_STD_INDXSRC(setup) != S626_INDXSRC_SOFT)
 		crb |= S626_SET_CRB_INDXPOL_B(S626_GET_STD_INDXPOL(setup));
 
 	/*
diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h
index f6b68bf1df3e..8509537bb2d8 100644
--- a/drivers/staging/comedi/drivers/s626.h
+++ b/drivers/staging/comedi/drivers/s626.h
@@ -462,8 +462,10 @@
 #define S626_LATCHSRC_B_OVERA	3	/* Latch B on A Overflow. */
 
 /* IndxSrc values: */
-#define S626_INDXSRC_HARD	0	/* Hardware or software index. */
-#define S626_INDXSRC_SOFT	1	/* Software index only. */
+#define S626_INDXSRC_ENCODER	0	/* Encoder. */
+#define S626_INDXSRC_DIGIN	1	/* Digital inputs. */
+#define S626_INDXSRC_SOFT	2	/* S/w controlled by IndxPol bit. */
+#define S626_INDXSRC_DISABLED	3	/* Index disabled. */
 
 /* IndxPol values: */
 #define S626_INDXPOL_POS	0	/* Index input is active high. */
@@ -730,7 +732,7 @@
 #define S626_STDWID_INTSRC	2
 #define S626_STDWID_LATCHSRC	2
 #define S626_STDWID_LOADSRC	2
-#define S626_STDWID_INDXSRC	1
+#define S626_STDWID_INDXSRC	2
 #define S626_STDWID_INDXPOL	1
 #define S626_STDWID_ENCMODE	2
 #define S626_STDWID_CLKPOL	1
-- 
cgit 


From 43ce748ff283169845af3eb012d22cd14792ce7d Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Mon, 21 Oct 2013 10:10:38 +0100
Subject: staging: comedi: s626: remove S626_BF_* macros

The `S626_BF_*` bitfield position macros are no longer used and are just
a subset of the corresponding `S626_STDBIT_*` bitfield position macros.
Remove them.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.h | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h
index 8509537bb2d8..cbd59eb3fea7 100644
--- a/drivers/staging/comedi/drivers/s626.h
+++ b/drivers/staging/comedi/drivers/s626.h
@@ -499,15 +499,6 @@
 #define S626_CLKMULT_2X		1	/* 2x clock multiplier. */
 #define S626_CLKMULT_1X		2	/* 1x clock multiplier. */
 
-/* Bit Field positions in COUNTER_SETUP structure: */
-#define S626_BF_LOADSRC		9	/* Preload trigger. */
-#define S626_BF_INDXSRC		7	/* Index source. */
-#define S626_BF_INDXPOL		6	/* Index polarity. */
-#define S626_BF_ENCMODE		4	/* Encoder mode. */
-#define S626_BF_CLKPOL		3	/* Clock polarity/count direction. */
-#define S626_BF_CLKMULT		1	/* Clock multiplier. */
-#define S626_BF_CLKENAB		0	/* Clock enable. */
-
 /* Enumerated counter clock multipliers. */
 
 #define S626_MULT_X0		0x0003	/* Supports no multipliers;
-- 
cgit 


From 7a1046e5c0fdce80ba075c2edd8a97b7485693ce Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Mon, 21 Oct 2013 10:10:39 +0100
Subject: staging: comedi: s626: replace S626_MULT_X? values

Replace the use of the `S626_MULT_X1`, `S626_MULT_X2` and `S626_MULT_X4`
clock multiplier values with the equivalent `S626_CLKMULT_1X`,
`S626_CLKMULT_2X` and `S626_CLKMULT_4X` values to avoid duplication.
Replace the use of `S626_MULT_X0` with a new macro
`S626_CLKMULT_SPECIAL` (this is treated specially by the
'ClkMultA'/'ClkMultB' field of the 'CRA'/'CRB' register).  Remove the
now unused `S626_MULT_X?` macros.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reviewed-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 28 ++++++++++++++--------------
 drivers/staging/comedi/drivers/s626.h | 12 +-----------
 2 files changed, 15 insertions(+), 25 deletions(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index c2837da862db..6815cfe2664e 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -731,7 +731,7 @@ static uint16_t s626_get_mode_a(struct comedi_device *dev,
 		/* Set ClkPol to indicate count direction (CntSrcA<0>). */
 		clkpol = cntsrc & 1;
 		/* ClkMult must be 1x in Timer mode. */
-		clkmult = S626_MULT_X1;
+		clkmult = S626_CLKMULT_1X;
 	} else {
 		/* Counter mode (CntSrcA<1> == 0): */
 		encmode = S626_ENCMODE_COUNTER;
@@ -739,8 +739,8 @@ static uint16_t s626_get_mode_a(struct comedi_device *dev,
 		clkpol = S626_GET_CRA_CLKPOL_A(cra);
 		/* Force ClkMult to 1x if not legal, else pass through. */
 		clkmult = S626_GET_CRA_CLKMULT_A(cra);
-		if (clkmult == S626_MULT_X0)
-			clkmult = S626_MULT_X1;
+		if (clkmult == S626_CLKMULT_SPECIAL)
+			clkmult = S626_CLKMULT_1X;
 	}
 	setup |= S626_SET_STD_ENCMODE(encmode) | S626_SET_STD_CLKMULT(clkmult) |
 		 S626_SET_STD_CLKPOL(clkpol);
@@ -781,18 +781,18 @@ static uint16_t s626_get_mode_b(struct comedi_device *dev,
 	/* Adjust mode-dependent parameters. */
 	cntsrc = S626_GET_CRA_CNTSRC_B(cra);
 	clkmult = S626_GET_CRB_CLKMULT_B(crb);
-	if (clkmult == S626_MULT_X0) {
-		/* Extender mode (ClkMultB == S626_MULT_X0): */
+	if (clkmult == S626_CLKMULT_SPECIAL) {
+		/* Extender mode (ClkMultB == S626_CLKMULT_SPECIAL): */
 		encmode = S626_ENCMODE_EXTENDER;
 		/* Indicate multiplier is 1x. */
-		clkmult = S626_MULT_X1;
+		clkmult = S626_CLKMULT_1X;
 		/* Set ClkPol equal to Timer count direction (CntSrcB<0>). */
 		clkpol = cntsrc & 1;
 	} else if (cntsrc & S626_CNTSRC_SYSCLK) {
 		/* Timer mode (CntSrcB<1> == 1): */
 		encmode = S626_ENCMODE_TIMER;
 		/* Indicate multiplier is 1x. */
-		clkmult = S626_MULT_X1;
+		clkmult = S626_CLKMULT_1X;
 		/* Set ClkPol equal to Timer count direction (CntSrcB<0>). */
 		clkpol = cntsrc & 1;
 	} else {
@@ -853,7 +853,7 @@ static void s626_set_mode_a(struct comedi_device *dev,
 		/* ClkPolA behaves as always-on clock enable. */
 		clkpol = 1;
 		/* ClkMult must be 1x. */
-		clkmult = S626_MULT_X1;
+		clkmult = S626_CLKMULT_1X;
 		break;
 	default:		/* Counter Mode: */
 		/* Select ENC_C and ENC_D as clock/direction inputs. */
@@ -861,8 +861,8 @@ static void s626_set_mode_a(struct comedi_device *dev,
 		/* Clock polarity is passed through. */
 		/* Force multiplier to x1 if not legal, else pass through. */
 		clkmult = S626_GET_STD_CLKMULT(setup);
-		if (clkmult == S626_MULT_X0)
-			clkmult = S626_MULT_X1;
+		if (clkmult == S626_CLKMULT_SPECIAL)
+			clkmult = S626_CLKMULT_1X;
 		break;
 	}
 	cra |= S626_SET_CRA_CNTSRC_A(cntsrc) | S626_SET_CRA_CLKPOL_A(clkpol) |
@@ -927,7 +927,7 @@ static void s626_set_mode_b(struct comedi_device *dev,
 		/* ClkPolB behaves as always-on clock enable. */
 		clkpol = 1;
 		/* ClkMultB must be 1x. */
-		clkmult = S626_MULT_X1;
+		clkmult = S626_CLKMULT_1X;
 		break;
 	case S626_ENCMODE_EXTENDER:	/* Extender Mode: */
 		/* CntSrcB source is OverflowA (same as "timer") */
@@ -937,7 +937,7 @@ static void s626_set_mode_b(struct comedi_device *dev,
 		/* ClkPolB controls IndexB -- always set to active. */
 		clkpol = 1;
 		/* ClkMultB selects OverflowA as the clock source. */
-		clkmult = S626_MULT_X0;
+		clkmult = S626_CLKMULT_SPECIAL;
 		break;
 	default:		/* Counter Mode: */
 		/* Select ENC_C and ENC_D as clock/direction inputs. */
@@ -945,8 +945,8 @@ static void s626_set_mode_b(struct comedi_device *dev,
 		/* ClkPol is passed through. */
 		/* Force ClkMult to x1 if not legal, otherwise pass through. */
 		clkmult = S626_GET_STD_CLKMULT(setup);
-		if (clkmult == S626_MULT_X0)
-			clkmult = S626_MULT_X1;
+		if (clkmult == S626_CLKMULT_SPECIAL)
+			clkmult = S626_CLKMULT_1X;
 		break;
 	}
 	cra |= S626_SET_CRA_CNTSRC_B(cntsrc);
diff --git a/drivers/staging/comedi/drivers/s626.h b/drivers/staging/comedi/drivers/s626.h
index cbd59eb3fea7..33b72739c1cb 100644
--- a/drivers/staging/comedi/drivers/s626.h
+++ b/drivers/staging/comedi/drivers/s626.h
@@ -498,17 +498,7 @@
 #define S626_CLKMULT_4X		0	/* 4x clock multiplier. */
 #define S626_CLKMULT_2X		1	/* 2x clock multiplier. */
 #define S626_CLKMULT_1X		2	/* 1x clock multiplier. */
-
-/* Enumerated counter clock multipliers. */
-
-#define S626_MULT_X0		0x0003	/* Supports no multipliers;
-					 * fixed physical multiplier = 3. */
-#define S626_MULT_X1		0x0002	/* Supports multiplier x1;
-					 * fixed physical multiplier = 2. */
-#define S626_MULT_X2		0x0001	/* Supports multipliers x1, x2;
-					 * physical multipliers = 1 or 2. */
-#define S626_MULT_X4		0x0000	/* Supports multipliers x1, x2, x4;
-					 * physical multipliers = 0, 1 or 2. */
+#define S626_CLKMULT_SPECIAL	3	/* Special clock multiplier value. */
 
 /* Sanity-check limits for parameters. */
 
-- 
cgit 


From be987763249482e5dcc00ec8089945371d8c8cc0 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 23 Oct 2013 22:31:34 -0500
Subject: staging: r8188eu: Fix sparse warnings in rtw_ieee80211.c

Sparse reports the following:

  CHECK   drivers/staging/rtl8188eu/core/rtw_ieee80211.c
drivers/staging/rtl8188eu/core/rtw_ieee80211.c:1593:14: warning: cast to restricted __le16

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/include/ieee80211.h | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/staging/rtl8188eu/include/ieee80211.h b/drivers/staging/rtl8188eu/include/ieee80211.h
index cd37ea4df4cb..c4d38d14abf1 100644
--- a/drivers/staging/rtl8188eu/include/ieee80211.h
+++ b/drivers/staging/rtl8188eu/include/ieee80211.h
@@ -306,8 +306,8 @@ struct ieee_ibss_seq {
 };
 
 struct rtw_ieee80211_hdr {
-	u16 frame_ctl;
-	u16 duration_id;
+	__le16 frame_ctl;
+	__le16 duration_id;
 	u8 addr1[ETH_ALEN];
 	u8 addr2[ETH_ALEN];
 	u8 addr3[ETH_ALEN];
@@ -316,8 +316,8 @@ struct rtw_ieee80211_hdr {
 } __packed;
 
 struct rtw_ieee80211_hdr_3addr {
-	u16 frame_ctl;
-	u16 duration_id;
+	__le16 frame_ctl;
+	__le16 duration_id;
 	u8 addr1[ETH_ALEN];
 	u8 addr2[ETH_ALEN];
 	u8 addr3[ETH_ALEN];
@@ -325,8 +325,8 @@ struct rtw_ieee80211_hdr_3addr {
 } __packed;
 
 struct rtw_ieee80211_hdr_qos {
-	u16 frame_ctl;
-	u16 duration_id;
+	__le16 frame_ctl;
+	__le16 duration_id;
 	u8 addr1[ETH_ALEN];
 	u8 addr2[ETH_ALEN];
 	u8 addr3[ETH_ALEN];
@@ -336,8 +336,8 @@ struct rtw_ieee80211_hdr_qos {
 }  __packed;
 
 struct rtw_ieee80211_hdr_3addr_qos {
-	u16 frame_ctl;
-	u16 duration_id;
+	__le16 frame_ctl;
+	__le16 duration_id;
 	u8 addr1[ETH_ALEN];
 	u8 addr2[ETH_ALEN];
 	u8 addr3[ETH_ALEN];
-- 
cgit 


From c4af455f811e82da89427db5936865eb10fd89fe Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 23 Oct 2013 22:31:35 -0500
Subject: staging: r8188eu: Fix sparse warnings in rtl8188e.cmd.c

Sparse displays the following:

  CHECK   drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:285:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:285:15:    expected unsigned short [usertype] *fctrl
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:285:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:368:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:368:15:    expected unsigned short [usertype] *fctrl
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:368:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:403:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:403:15:    expected unsigned short [usertype] *fctrl
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:403:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:465:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:465:15:    expected unsigned short [usertype] *fctrl
drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c:465:15:    got restricted __le16 *<noident>

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c b/drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c
index 0b0c68c9865c..8be2ad7217d4 100644
--- a/drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c
+++ b/drivers/staging/rtl8188eu/hal/rtl8188e_cmd.c
@@ -273,7 +273,7 @@ void rtl8188e_set_FwMediaStatus_cmd(struct adapter *adapt, __le16 mstatus_rpt)
 static void ConstructBeacon(struct adapter *adapt, u8 *pframe, u32 *pLength)
 {
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	u16 *fctrl;
+	__le16 *fctrl;
 	u32 rate_len, pktlen;
 	struct mlme_ext_priv *pmlmeext = &(adapt->mlmeextpriv);
 	struct mlme_ext_info	*pmlmeinfo = &(pmlmeext->mlmext_info);
@@ -360,7 +360,7 @@ static void ConstructPSPoll(struct adapter *adapt, u8 *pframe, u32 *pLength)
 	struct rtw_ieee80211_hdr	*pwlanhdr;
 	struct mlme_ext_priv *pmlmeext = &(adapt->mlmeextpriv);
 	struct mlme_ext_info	*pmlmeinfo = &(pmlmeext->mlmext_info);
-	u16 *fctrl;
+	__le16 *fctrl;
 
 	pwlanhdr = (struct rtw_ieee80211_hdr *)pframe;
 
@@ -391,7 +391,7 @@ static void ConstructNullFunctionData(struct adapter *adapt, u8 *pframe,
 	u8 bForcePowerSave)
 {
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	u16 *fctrl;
+	__le16 *fctrl;
 	u32 pktlen;
 	struct mlme_priv *pmlmepriv = &adapt->mlmepriv;
 	struct wlan_network		*cur_network = &pmlmepriv->cur_network;
@@ -450,7 +450,7 @@ static void ConstructNullFunctionData(struct adapter *adapt, u8 *pframe,
 static void ConstructProbeRsp(struct adapter *adapt, u8 *pframe, u32 *pLength, u8 *StaAddr, bool bHideSSID)
 {
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	u16 *fctrl;
+	__le16 *fctrl;
 	u8 *mac, *bssid;
 	u32 pktlen;
 	struct mlme_ext_priv *pmlmeext = &(adapt->mlmeextpriv);
-- 
cgit 


From ac049e3085fd583d8f39cc29d5d73b5ca399758b Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 23 Oct 2013 22:31:36 -0500
Subject: staging: r8188eu: Fix sparse warnings in rtw_mlme_ext.c

Sparse displays the following:

  CHECK   drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:1874:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:1874:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:1874:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:2221:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:2221:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:2221:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:2583:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:2583:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:2583:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:2750:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:2750:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:2750:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3002:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3002:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3002:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3197:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3197:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3197:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3311:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3311:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3311:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3563:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3563:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:3563:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:4522:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:4522:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:4522:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:4750:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:4750:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:4750:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:4906:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:4906:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:4906:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5040:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5040:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5040:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5184:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5184:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5184:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5322:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5322:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5322:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5654:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5654:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5654:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5769:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5769:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5769:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5894:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5894:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5894:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5996:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5996:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:5996:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:6066:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:6066:15:    expected unsigned short [usertype] *fctrl
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:6066:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:6200:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:6200:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_mlme_ext.c:6200:15:    got restricted __le16 *<noident>

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/core/rtw_mlme_ext.c | 41 ++++++++++++++-------------
 1 file changed, 21 insertions(+), 20 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
index 9982dd0e2060..7ab5ff039c88 100644
--- a/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
+++ b/drivers/staging/rtl8188eu/core/rtw_mlme_ext.c
@@ -1852,7 +1852,7 @@ void issue_p2p_GO_request(struct adapter *padapter, u8 *raddr)
 	struct pkt_attrib *pattrib;
 	unsigned char *pframe;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	unsigned short *fctrl;
+	__le16 *fctrl;
 	struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
 	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
 	struct wifidirect_info	*pwdinfo = &(padapter->wdinfo);
@@ -2199,7 +2199,7 @@ static void issue_p2p_GO_response(struct adapter *padapter, u8 *raddr, u8 *frame
 	struct pkt_attrib			*pattrib;
 	unsigned char					*pframe;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	unsigned short				*fctrl;
+	__le16 *fctrl;
 	struct xmit_priv			*pxmitpriv = &(padapter->xmitpriv);
 	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
 	struct wifidirect_info	*pwdinfo = &(padapter->wdinfo);
@@ -2561,7 +2561,7 @@ static void issue_p2p_GO_confirm(struct adapter *padapter, u8 *raddr, u8 result)
 	struct pkt_attrib			*pattrib;
 	unsigned char					*pframe;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	unsigned short				*fctrl;
+	__le16 *fctrl;
 	struct xmit_priv			*pxmitpriv = &(padapter->xmitpriv);
 	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
 	struct wifidirect_info	*pwdinfo = &(padapter->wdinfo);
@@ -2729,7 +2729,7 @@ void issue_p2p_invitation_request(struct adapter *padapter, u8 *raddr)
 	struct pkt_attrib			*pattrib;
 	unsigned char					*pframe;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	unsigned short				*fctrl;
+	__le16 *fctrl;
 	struct xmit_priv			*pxmitpriv = &(padapter->xmitpriv);
 	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
 	struct wifidirect_info	*pwdinfo = &(padapter->wdinfo);
@@ -2981,7 +2981,7 @@ void issue_p2p_invitation_response(struct adapter *padapter, u8 *raddr, u8 dialo
 	struct pkt_attrib			*pattrib;
 	unsigned char					*pframe;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	unsigned short				*fctrl;
+	__le16 *fctrl;
 	struct xmit_priv			*pxmitpriv = &(padapter->xmitpriv);
 	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
 	struct wifidirect_info	*pwdinfo = &(padapter->wdinfo);
@@ -3175,7 +3175,7 @@ void issue_p2p_provision_request(struct adapter *padapter, u8 *pssid, u8 ussidle
 	struct pkt_attrib			*pattrib;
 	unsigned char					*pframe;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	unsigned short				*fctrl;
+	__le16 *fctrl;
 	struct xmit_priv			*pxmitpriv = &(padapter->xmitpriv);
 	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
 	struct wifidirect_info	*pwdinfo = &(padapter->wdinfo);
@@ -3283,7 +3283,7 @@ void issue_probersp_p2p(struct adapter *padapter, unsigned char *da)
 	struct pkt_attrib			*pattrib;
 	unsigned char					*pframe;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	unsigned short				*fctrl;
+	__le16 *fctrl;
 	unsigned char					*mac;
 	struct xmit_priv	*pxmitpriv = &(padapter->xmitpriv);
 	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
@@ -3534,7 +3534,7 @@ static int _issue_probereq_p2p(struct adapter *padapter, u8 *da, int wait_ack)
 	struct pkt_attrib		*pattrib;
 	unsigned char			*pframe;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	unsigned short		*fctrl;
+	__le16 *fctrl;
 	unsigned char			*mac;
 	struct xmit_priv		*pxmitpriv = &(padapter->xmitpriv);
 	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
@@ -4484,7 +4484,7 @@ void issue_beacon(struct adapter *padapter, int timeout_ms)
 	struct pkt_attrib	*pattrib;
 	unsigned char	*pframe;
 	struct rtw_ieee80211_hdr *pwlanhdr;
-	unsigned short *fctrl;
+	__le16 *fctrl;
 	unsigned int	rate_len;
 	struct xmit_priv	*pxmitpriv = &(padapter->xmitpriv);
 #if defined(CONFIG_88EU_AP_MODE)
@@ -4713,7 +4713,7 @@ void issue_probersp(struct adapter *padapter, unsigned char *da, u8 is_valid_p2p
 	struct pkt_attrib			*pattrib;
 	unsigned char					*pframe;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	unsigned short				*fctrl;
+	__le16 *fctrl;
 	unsigned char					*mac, *bssid;
 	struct xmit_priv	*pxmitpriv = &(padapter->xmitpriv);
 #if defined (CONFIG_88EU_AP_MODE)
@@ -4876,7 +4876,7 @@ static int _issue_probereq(struct adapter *padapter, struct ndis_802_11_ssid *ps
 	struct pkt_attrib		*pattrib;
 	unsigned char			*pframe;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	unsigned short		*fctrl;
+	__le16 *fctrl;
 	unsigned char			*mac;
 	unsigned char			bssrate[NumRates];
 	struct xmit_priv		*pxmitpriv = &(padapter->xmitpriv);
@@ -5013,7 +5013,7 @@ void issue_auth(struct adapter *padapter, struct sta_info *psta, unsigned short
 	struct pkt_attrib *pattrib;
 	unsigned char *pframe;
 	struct rtw_ieee80211_hdr *pwlanhdr;
-	unsigned short *fctrl;
+	__le16 *fctrl;
 	unsigned int val32;
 	u16 val16;
 #ifdef CONFIG_88EU_AP_MODE
@@ -5153,7 +5153,7 @@ void issue_asocrsp(struct adapter *padapter, unsigned short status, struct sta_i
 	struct pkt_attrib *pattrib;
 	unsigned char	*pbuf, *pframe;
 	unsigned short val;
-	unsigned short *fctrl;
+	__le16 *fctrl;
 	struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
 	struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
@@ -5290,7 +5290,7 @@ void issue_assocreq(struct adapter *padapter)
 	struct pkt_attrib	*pattrib;
 	unsigned char		*pframe, *p;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	unsigned short	*fctrl;
+	__le16 *fctrl;
 	__le16		le_tmp;
 	unsigned int	i, j, ie_len, index = 0;
 	unsigned char	rf_type, bssrate[NumRates], sta_bssrate[NumRates];
@@ -5625,7 +5625,7 @@ static int _issue_nulldata(struct adapter *padapter, unsigned char *da, unsigned
 	struct pkt_attrib			*pattrib;
 	unsigned char					*pframe;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	unsigned short				*fctrl;
+	__le16 *fctrl;
 	struct xmit_priv	*pxmitpriv;
 	struct mlme_ext_priv	*pmlmeext;
 	struct mlme_ext_info	*pmlmeinfo;
@@ -5740,7 +5740,8 @@ static int _issue_qos_nulldata(struct adapter *padapter, unsigned char *da, u16
 	struct pkt_attrib			*pattrib;
 	unsigned char					*pframe;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	unsigned short				*fctrl, *qc;
+	__le16 *fctrl;
+	unsigned short *qc;
 	struct xmit_priv			*pxmitpriv = &(padapter->xmitpriv);
 	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
 	struct mlme_ext_info	*pmlmeinfo = &(pmlmeext->mlmext_info);
@@ -5860,7 +5861,7 @@ static int _issue_deauth(struct adapter *padapter, unsigned char *da, unsigned s
 	struct pkt_attrib			*pattrib;
 	unsigned char					*pframe;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	unsigned short				*fctrl;
+	__le16 *fctrl;
 	struct xmit_priv			*pxmitpriv = &(padapter->xmitpriv);
 	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
 	struct mlme_ext_info	*pmlmeinfo = &(pmlmeext->mlmext_info);
@@ -5972,7 +5973,7 @@ void issue_action_spct_ch_switch (struct adapter *padapter, u8 *ra, u8 new_ch, u
 	struct pkt_attrib			*pattrib;
 	unsigned char				*pframe;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	unsigned short			*fctrl;
+	__le16 *fctrl;
 	struct xmit_priv			*pxmitpriv = &(padapter->xmitpriv);
 	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
 
@@ -6040,7 +6041,7 @@ void issue_action_BA(struct adapter *padapter, unsigned char *raddr, unsigned ch
 	struct pkt_attrib *pattrib;
 	u8 *pframe;
 	struct rtw_ieee80211_hdr *pwlanhdr;
-	u16 *fctrl;
+	__le16 *fctrl;
 	struct xmit_priv *pxmitpriv = &(padapter->xmitpriv);
 	struct mlme_ext_priv *pmlmeext = &(padapter->mlmeextpriv);
 	struct mlme_ext_info *pmlmeinfo = &(pmlmeext->mlmext_info);
@@ -6162,7 +6163,7 @@ static void issue_action_BSSCoexistPacket(struct adapter *padapter)
 	struct pkt_attrib			*pattrib;
 	unsigned char				*pframe;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	unsigned short			*fctrl;
+	__le16 *fctrl;
 	struct	wlan_network	*pnetwork = NULL;
 	struct xmit_priv			*pxmitpriv = &(padapter->xmitpriv);
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
-- 
cgit 


From 0e51fc360f32b3c025e68ad90cd19d3ec8a0dcc6 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Wed, 23 Oct 2013 22:31:37 -0500
Subject: staging: r8188eu: Fix sparse warnings in rtl_p2p.c

Sparse displays the following:

  CHECK   drivers/staging/rtl8188eu/core/rtw_p2p.c
drivers/staging/rtl8188eu/core/rtw_p2p.c:162:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_p2p.c:162:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_p2p.c:162:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_p2p.c:221:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_p2p.c:221:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_p2p.c:221:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_p2p.c:292:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_p2p.c:292:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_p2p.c:292:15:    got restricted __le16 *<noident>
drivers/staging/rtl8188eu/core/rtw_p2p.c:371:15: warning: incorrect type in assignment (different base types)
drivers/staging/rtl8188eu/core/rtw_p2p.c:371:15:    expected unsigned short *fctrl
drivers/staging/rtl8188eu/core/rtw_p2p.c:371:15:    got restricted __le16 *<noident>

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/core/rtw_p2p.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/rtl8188eu/core/rtw_p2p.c b/drivers/staging/rtl8188eu/core/rtw_p2p.c
index 8cf915f4cf98..f46cab14a54d 100644
--- a/drivers/staging/rtl8188eu/core/rtw_p2p.c
+++ b/drivers/staging/rtl8188eu/core/rtw_p2p.c
@@ -135,7 +135,7 @@ static void issue_group_disc_req(struct wifidirect_info *pwdinfo, u8 *da)
 	struct pkt_attrib			*pattrib;
 	unsigned char					*pframe;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	unsigned short				*fctrl;
+	__le16 *fctrl;
 	struct adapter *padapter = pwdinfo->padapter;
 	struct xmit_priv			*pxmitpriv = &(padapter->xmitpriv);
 	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
@@ -192,7 +192,7 @@ static void issue_p2p_devdisc_resp(struct wifidirect_info *pwdinfo, u8 *da, u8 s
 	struct pkt_attrib			*pattrib;
 	unsigned char					*pframe;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	unsigned short				*fctrl;
+	__le16 *fctrl;
 	struct adapter *padapter = pwdinfo->padapter;
 	struct xmit_priv			*pxmitpriv = &(padapter->xmitpriv);
 	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
@@ -272,7 +272,7 @@ static void issue_p2p_provision_resp(struct wifidirect_info *pwdinfo, u8 *raddr,
 	struct pkt_attrib			*pattrib;
 	unsigned char					*pframe;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	unsigned short				*fctrl;
+	__le16 *fctrl;
 	struct xmit_priv			*pxmitpriv = &(padapter->xmitpriv);
 	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
 
@@ -342,7 +342,7 @@ static void issue_p2p_presence_resp(struct wifidirect_info *pwdinfo, u8 *da, u8
 	struct pkt_attrib			*pattrib;
 	unsigned char					*pframe;
 	struct rtw_ieee80211_hdr	*pwlanhdr;
-	unsigned short				*fctrl;
+	__le16 *fctrl;
 	struct adapter *padapter = pwdinfo->padapter;
 	struct xmit_priv			*pxmitpriv = &(padapter->xmitpriv);
 	struct mlme_ext_priv	*pmlmeext = &(padapter->mlmeextpriv);
-- 
cgit 


From d54b181ea65682914cae0430f2a1efcbb6517dba Mon Sep 17 00:00:00 2001
From: Soren Brinkmann <soren.brinkmann@xilinx.com>
Date: Mon, 21 Oct 2013 16:40:59 -0700
Subject: tty: xuartps: Fix "may be used uninitialized" build warning

Initialize varibles for which a 'may be used uninitalized' warning is
issued.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/xilinx_uartps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index c7c96c2f149c..5ac6c480df43 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -389,7 +389,7 @@ static unsigned int xuartps_set_baud_rate(struct uart_port *port,
 		unsigned int baud)
 {
 	unsigned int calc_baud;
-	u32 cd, bdiv;
+	u32 cd = 0, bdiv = 0;
 	u32 mreg;
 	int div8;
 	struct xuartps *xuartps = port->private_data;
-- 
cgit 


From d3641f64bc71765682754722fd42fae24366bb3a Mon Sep 17 00:00:00 2001
From: Soren Brinkmann <soren.brinkmann@xilinx.com>
Date: Mon, 21 Oct 2013 16:41:00 -0700
Subject: tty: xuartps: Fix build error due to missing forward declaration

If CONFIG_PM_SLEEP is enabled and CONFIG_SERIAL_XILINX_PS_UART_CONSOLE
is not, a forward declaration of the uart_driver struct is not
included, leading to a build error due to an undeclared variable.
Fixing this by moving the definition of the struct uart_driver before
the definition of the suspend/resume callbacks.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/xilinx_uartps.c | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 5ac6c480df43..ca4a2f1fbca9 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -1198,6 +1198,20 @@ console_initcall(xuartps_console_init);
 
 #endif /* CONFIG_SERIAL_XILINX_PS_UART_CONSOLE */
 
+/** Structure Definitions
+ */
+static struct uart_driver xuartps_uart_driver = {
+	.owner		= THIS_MODULE,		/* Owner */
+	.driver_name	= XUARTPS_NAME,		/* Driver name */
+	.dev_name	= XUARTPS_TTY_NAME,	/* Node name */
+	.major		= XUARTPS_MAJOR,	/* Major number */
+	.minor		= XUARTPS_MINOR,	/* Minor number */
+	.nr		= XUARTPS_NR_PORTS,	/* Number of UART ports */
+#ifdef CONFIG_SERIAL_XILINX_PS_UART_CONSOLE
+	.cons		= &xuartps_console,	/* Console */
+#endif
+};
+
 #ifdef CONFIG_PM_SLEEP
 /**
  * xuartps_suspend - suspend event
@@ -1311,20 +1325,6 @@ static int xuartps_resume(struct device *device)
 
 static SIMPLE_DEV_PM_OPS(xuartps_dev_pm_ops, xuartps_suspend, xuartps_resume);
 
-/** Structure Definitions
- */
-static struct uart_driver xuartps_uart_driver = {
-	.owner		= THIS_MODULE,		/* Owner */
-	.driver_name	= XUARTPS_NAME,		/* Driver name */
-	.dev_name	= XUARTPS_TTY_NAME,	/* Node name */
-	.major		= XUARTPS_MAJOR,	/* Major number */
-	.minor		= XUARTPS_MINOR,	/* Minor number */
-	.nr		= XUARTPS_NR_PORTS,	/* Number of UART ports */
-#ifdef CONFIG_SERIAL_XILINX_PS_UART_CONSOLE
-	.cons		= &xuartps_console,	/* Console */
-#endif
-};
-
 /* ---------------------------------------------------------------------
  * Platform bus binding
  */
-- 
cgit 


From 7ac57347c23de6b6fcaf8f0a1f91067cedea57bc Mon Sep 17 00:00:00 2001
From: Soren Brinkmann <soren.brinkmann@xilinx.com>
Date: Mon, 21 Oct 2013 16:41:01 -0700
Subject: tty: xuartps: Fix build error when COMMON_CLK is not set

Clock notifiers are only available when CONFIG_COMMON_CLK is enabled.
Hence all notifier related code has to be protected by corresponsing
ifdefs.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/xilinx_uartps.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index ca4a2f1fbca9..e46e9f3f19b9 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -411,6 +411,7 @@ static unsigned int xuartps_set_baud_rate(struct uart_port *port,
 	return calc_baud;
 }
 
+#ifdef CONFIG_COMMON_CLK
 /**
  * xuartps_clk_notitifer_cb - Clock notifier callback
  * @nb:		Notifier block
@@ -504,6 +505,7 @@ static int xuartps_clk_notifier_cb(struct notifier_block *nb,
 		return NOTIFY_DONE;
 	}
 }
+#endif
 
 /*----------------------Uart Operations---------------------------*/
 
@@ -1380,11 +1382,13 @@ static int xuartps_probe(struct platform_device *pdev)
 		goto err_out_clk_disable;
 	}
 
+#ifdef CONFIG_COMMON_CLK
 	xuartps_data->clk_rate_change_nb.notifier_call =
 			xuartps_clk_notifier_cb;
 	if (clk_notifier_register(xuartps_data->refclk,
 				&xuartps_data->clk_rate_change_nb))
 		dev_warn(&pdev->dev, "Unable to register clock notifier.\n");
+#endif
 
 	/* Initialize the port structure */
 	port = xuartps_get_port();
@@ -1415,8 +1419,10 @@ static int xuartps_probe(struct platform_device *pdev)
 	}
 
 err_out_notif_unreg:
+#ifdef CONFIG_COMMON_CLK
 	clk_notifier_unregister(xuartps_data->refclk,
 			&xuartps_data->clk_rate_change_nb);
+#endif
 err_out_clk_disable:
 	clk_disable_unprepare(xuartps_data->refclk);
 err_out_clk_dis_aper:
@@ -1438,8 +1444,10 @@ static int xuartps_remove(struct platform_device *pdev)
 	int rc;
 
 	/* Remove the xuartps port from the serial core */
+#ifdef CONFIG_COMMON_CLK
 	clk_notifier_unregister(xuartps_data->refclk,
 			&xuartps_data->clk_rate_change_nb);
+#endif
 	rc = uart_remove_one_port(&xuartps_uart_driver, port);
 	port->mapbase = 0;
 	clk_disable_unprepare(xuartps_data->refclk);
-- 
cgit 


From b5ef3f2a8074af7aef9a32f4535c57f986364a60 Mon Sep 17 00:00:00 2001
From: Nicolin Chen <b42378@freescale.com>
Date: Tue, 29 Oct 2013 17:06:27 +0800
Subject: ASoC: wm8962: Fix null pointer pdata access in I2C probe()

When using DT binding to pass private data, there would be Kernel panic
occuring due to NULL pointer access in wm8962_i2c_probe(). Thus fix it.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm8962.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 2bf9ee7c5407..7dd79c4efc13 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -3616,28 +3616,28 @@ static int wm8962_i2c_probe(struct i2c_client *i2c,
 			   0);
 
 	/* Apply static configuration for GPIOs */
-	for (i = 0; i < ARRAY_SIZE(pdata->gpio_init); i++)
-		if (pdata->gpio_init[i]) {
+	for (i = 0; i < ARRAY_SIZE(wm8962->pdata.gpio_init); i++)
+		if (wm8962->pdata.gpio_init[i]) {
 			wm8962_set_gpio_mode(wm8962, i + 1);
 			regmap_write(wm8962->regmap, 0x200 + i,
-				     pdata->gpio_init[i] & 0xffff);
+				     wm8962->pdata.gpio_init[i] & 0xffff);
 		}
 
 
 	/* Put the speakers into mono mode? */
-	if (pdata->spk_mono)
+	if (wm8962->pdata.spk_mono)
 		regmap_update_bits(wm8962->regmap, WM8962_CLASS_D_CONTROL_2,
 				   WM8962_SPK_MONO_MASK, WM8962_SPK_MONO);
 
 	/* Micbias setup, detection enable and detection
 	 * threasholds. */
-	if (pdata->mic_cfg)
+	if (wm8962->pdata.mic_cfg)
 		regmap_update_bits(wm8962->regmap, WM8962_ADDITIONAL_CONTROL_4,
 				   WM8962_MICDET_ENA |
 				   WM8962_MICDET_THR_MASK |
 				   WM8962_MICSHORT_THR_MASK |
 				   WM8962_MICBIAS_LVL,
-				   pdata->mic_cfg);
+				   wm8962->pdata.mic_cfg);
 
 	/* Latch volume update bits */
 	regmap_update_bits(wm8962->regmap, WM8962_LEFT_INPUT_VOLUME,
@@ -3682,7 +3682,7 @@ static int wm8962_i2c_probe(struct i2c_client *i2c,
 	}
 
 	if (wm8962->irq) {
-		if (pdata->irq_active_low) {
+		if (wm8962->pdata.irq_active_low) {
 			trigger = IRQF_TRIGGER_LOW;
 			irq_pol = WM8962_IRQ_POL;
 		} else {
-- 
cgit 


From c2d3f25dda016d9697c5416810d4528770f0a281 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Wed, 9 Oct 2013 14:08:09 +0200
Subject: uprobes: Remove the wrong __weak attribute

linux/uprobes.h declares arch_uprobe_skip_sstep() as a weak function.
But as there is no definition of generic version so when trying to build
uprobes for an architecture that doesn't yet have a arch_uprobe_skip_sstep()
implementation, the vmlinux will try to call arch_uprobe_skip_sstep()
somehwere in Stupidhistan leading to a system crash.  We rather want a
proper link error so remove arch_uprobe_skip_sstep().

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
---
 include/linux/uprobes.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/uprobes.h b/include/linux/uprobes.h
index 06f28beed7c2..e6fba627ea45 100644
--- a/include/linux/uprobes.h
+++ b/include/linux/uprobes.h
@@ -123,7 +123,7 @@ extern int uprobe_post_sstep_notifier(struct pt_regs *regs);
 extern int uprobe_pre_sstep_notifier(struct pt_regs *regs);
 extern void uprobe_notify_resume(struct pt_regs *regs);
 extern bool uprobe_deny_signal(void);
-extern bool __weak arch_uprobe_skip_sstep(struct arch_uprobe *aup, struct pt_regs *regs);
+extern bool arch_uprobe_skip_sstep(struct arch_uprobe *aup, struct pt_regs *regs);
 extern void uprobe_clear_state(struct mm_struct *mm);
 #else /* !CONFIG_UPROBES */
 struct uprobes_state {
-- 
cgit 


From b68e0749100e1b901bf11330f149b321c082178e Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Sun, 13 Oct 2013 21:18:31 +0200
Subject: uprobes: Change the callsite of uprobe_copy_process()

Preparation for the next patches.

Move the callsite of uprobe_copy_process() in copy_process() down
to the succesfull return. We do not care if copy_process() fails,
uprobe_free_utask() won't be called in this case so the wrong
->utask != NULL doesn't matter.

OTOH, with this change we know that copy_process() can't fail when
uprobe_copy_process() is called, the new task should either return
to user-mode or call do_exit(). This way uprobe_copy_process() can:

	1. setup p->utask != NULL if necessary

	2. setup uprobes_state.xol_area

	3. use task_work_add(p)

Also, move the definition of uprobe_copy_process() down so that it
can see get_utask().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
---
 kernel/events/uprobes.c | 16 ++++++++--------
 kernel/fork.c           |  2 +-
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index ad8e1bdca70e..db7a1dcb3dd6 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -1344,14 +1344,6 @@ void uprobe_free_utask(struct task_struct *t)
 	t->utask = NULL;
 }
 
-/*
- * Called in context of a new clone/fork from copy_process.
- */
-void uprobe_copy_process(struct task_struct *t)
-{
-	t->utask = NULL;
-}
-
 /*
  * Allocate a uprobe_task object for the task if if necessary.
  * Called when the thread hits a breakpoint.
@@ -1367,6 +1359,14 @@ static struct uprobe_task *get_utask(void)
 	return current->utask;
 }
 
+/*
+ * Called in context of a new clone/fork from copy_process.
+ */
+void uprobe_copy_process(struct task_struct *t)
+{
+	t->utask = NULL;
+}
+
 /*
  * Current area->vaddr notion assume the trampoline address is always
  * equal area->vaddr.
diff --git a/kernel/fork.c b/kernel/fork.c
index 086fe73ad6bd..d3603b81246b 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1373,7 +1373,6 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 	INIT_LIST_HEAD(&p->pi_state_list);
 	p->pi_state_cache = NULL;
 #endif
-	uprobe_copy_process(p);
 	/*
 	 * sigaltstack should be cleared when sharing the same VM
 	 */
@@ -1490,6 +1489,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 	perf_event_fork(p);
 
 	trace_task_newtask(p, clone_flags);
+	uprobe_copy_process(p);
 
 	return p;
 
-- 
cgit 


From 6441ec8b7c108b72789d120562b9f1d976e4aaaf Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Sun, 13 Oct 2013 21:18:35 +0200
Subject: uprobes: Introduce __create_xol_area()

No functional changes, preparation.

Extract the code which actually allocates/installs the new area
into the new helper, __create_xol_area().

While at it remove the unnecessary "ret = ENOMEM" and "ret = 0"
in xol_add_vma(), they both have no effect.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
---
 kernel/events/uprobes.c | 47 +++++++++++++++++++++++++----------------------
 1 file changed, 25 insertions(+), 22 deletions(-)

diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index db7a1dcb3dd6..ad17d813e73e 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -1096,16 +1096,14 @@ void uprobe_munmap(struct vm_area_struct *vma, unsigned long start, unsigned lon
 }
 
 /* Slot allocation for XOL */
-static int xol_add_vma(struct xol_area *area)
+static int xol_add_vma(struct mm_struct *mm, struct xol_area *area)
 {
-	struct mm_struct *mm = current->mm;
 	int ret = -EALREADY;
 
 	down_write(&mm->mmap_sem);
 	if (mm->uprobes_state.xol_area)
 		goto fail;
 
-	ret = -ENOMEM;
 	/* Try to map as high as possible, this is only a hint. */
 	area->vaddr = get_unmapped_area(NULL, TASK_SIZE - PAGE_SIZE, PAGE_SIZE, 0, 0);
 	if (area->vaddr & ~PAGE_MASK) {
@@ -1120,28 +1118,17 @@ static int xol_add_vma(struct xol_area *area)
 
 	smp_wmb();	/* pairs with get_xol_area() */
 	mm->uprobes_state.xol_area = area;
-	ret = 0;
  fail:
 	up_write(&mm->mmap_sem);
 
 	return ret;
 }
 
-/*
- * get_xol_area - Allocate process's xol_area if necessary.
- * This area will be used for storing instructions for execution out of line.
- *
- * Returns the allocated area or NULL.
- */
-static struct xol_area *get_xol_area(void)
+static struct xol_area *__create_xol_area(void)
 {
 	struct mm_struct *mm = current->mm;
-	struct xol_area *area;
 	uprobe_opcode_t insn = UPROBE_SWBP_INSN;
-
-	area = mm->uprobes_state.xol_area;
-	if (area)
-		goto ret;
+	struct xol_area *area;
 
 	area = kzalloc(sizeof(*area), GFP_KERNEL);
 	if (unlikely(!area))
@@ -1155,13 +1142,13 @@ static struct xol_area *get_xol_area(void)
 	if (!area->page)
 		goto free_bitmap;
 
-	/* allocate first slot of task's xol_area for the return probes */
+	init_waitqueue_head(&area->wq);
+	/* Reserve the 1st slot for get_trampoline_vaddr() */
 	set_bit(0, area->bitmap);
-	copy_to_page(area->page, 0, &insn, UPROBE_SWBP_INSN_SIZE);
 	atomic_set(&area->slot_count, 1);
-	init_waitqueue_head(&area->wq);
+	copy_to_page(area->page, 0, &insn, UPROBE_SWBP_INSN_SIZE);
 
-	if (!xol_add_vma(area))
+	if (!xol_add_vma(mm, area))
 		return area;
 
 	__free_page(area->page);
@@ -1170,9 +1157,25 @@ static struct xol_area *get_xol_area(void)
  free_area:
 	kfree(area);
  out:
+	return NULL;
+}
+
+/*
+ * get_xol_area - Allocate process's xol_area if necessary.
+ * This area will be used for storing instructions for execution out of line.
+ *
+ * Returns the allocated area or NULL.
+ */
+static struct xol_area *get_xol_area(void)
+{
+	struct mm_struct *mm = current->mm;
+	struct xol_area *area;
+
+	if (!mm->uprobes_state.xol_area)
+		__create_xol_area();
+
 	area = mm->uprobes_state.xol_area;
- ret:
-	smp_read_barrier_depends();     /* pairs with wmb in xol_add_vma() */
+	smp_read_barrier_depends();	/* pairs with wmb in xol_add_vma() */
 	return area;
 }
 
-- 
cgit 


From af0d95af79773f7637107cd3871aaabcb425f15a Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Sun, 13 Oct 2013 21:18:38 +0200
Subject: uprobes: Teach __create_xol_area() to accept the predefined vaddr

Currently xol_add_vma() uses get_unmapped_area() for area->vaddr,
but the next patches need to use the fixed address. So this patch
adds the new "vaddr" argument to __create_xol_area() which should
be used as area->vaddr if it is nonzero.

xol_add_vma() doesn't bother to verify that the predefined addr is
not used, insert_vm_struct() should fail if find_vma_links() detects
the overlap with the existing vma.

Also, __create_xol_area() doesn't need __GFP_ZERO to allocate area.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
---
 kernel/events/uprobes.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index ad17d813e73e..7d12a45842a7 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -1104,11 +1104,14 @@ static int xol_add_vma(struct mm_struct *mm, struct xol_area *area)
 	if (mm->uprobes_state.xol_area)
 		goto fail;
 
-	/* Try to map as high as possible, this is only a hint. */
-	area->vaddr = get_unmapped_area(NULL, TASK_SIZE - PAGE_SIZE, PAGE_SIZE, 0, 0);
-	if (area->vaddr & ~PAGE_MASK) {
-		ret = area->vaddr;
-		goto fail;
+	if (!area->vaddr) {
+		/* Try to map as high as possible, this is only a hint. */
+		area->vaddr = get_unmapped_area(NULL, TASK_SIZE - PAGE_SIZE,
+						PAGE_SIZE, 0, 0);
+		if (area->vaddr & ~PAGE_MASK) {
+			ret = area->vaddr;
+			goto fail;
+		}
 	}
 
 	ret = install_special_mapping(mm, area->vaddr, PAGE_SIZE,
@@ -1124,13 +1127,13 @@ static int xol_add_vma(struct mm_struct *mm, struct xol_area *area)
 	return ret;
 }
 
-static struct xol_area *__create_xol_area(void)
+static struct xol_area *__create_xol_area(unsigned long vaddr)
 {
 	struct mm_struct *mm = current->mm;
 	uprobe_opcode_t insn = UPROBE_SWBP_INSN;
 	struct xol_area *area;
 
-	area = kzalloc(sizeof(*area), GFP_KERNEL);
+	area = kmalloc(sizeof(*area), GFP_KERNEL);
 	if (unlikely(!area))
 		goto out;
 
@@ -1142,6 +1145,7 @@ static struct xol_area *__create_xol_area(void)
 	if (!area->page)
 		goto free_bitmap;
 
+	area->vaddr = vaddr;
 	init_waitqueue_head(&area->wq);
 	/* Reserve the 1st slot for get_trampoline_vaddr() */
 	set_bit(0, area->bitmap);
@@ -1172,7 +1176,7 @@ static struct xol_area *get_xol_area(void)
 	struct xol_area *area;
 
 	if (!mm->uprobes_state.xol_area)
-		__create_xol_area();
+		__create_xol_area(0);
 
 	area = mm->uprobes_state.xol_area;
 	smp_read_barrier_depends();	/* pairs with wmb in xol_add_vma() */
-- 
cgit 


From 248d3a7b2f100078c5f6878351177859380582e9 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Sun, 13 Oct 2013 21:18:41 +0200
Subject: uprobes: Change uprobe_copy_process() to dup return_instances

uprobe_copy_process() assumes that the new child doesn't need
->utask, it should be allocated by demand.

But this is not true if the forking task has the pending ret-
probes, the child should report them as well and thus it needs
the copy of parent's ->return_instances chain. Otherwise the
child crashes when it returns from the probed function.

Alternatively we could cleanup the child's stack, but this needs
per-arch changes and this is not what we want. At least systemtap
expects a .return in the child too.

Note: this change alone doesn't fix the problem, see the next
change.

Reported-by: Martin Cermak <mcermak@redhat.com>
Reported-by: David Smith <dsmith@redhat.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
---
 kernel/events/uprobes.c | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 7d12a45842a7..1c6cda68a555 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -1366,12 +1366,55 @@ static struct uprobe_task *get_utask(void)
 	return current->utask;
 }
 
+static int dup_utask(struct task_struct *t, struct uprobe_task *o_utask)
+{
+	struct uprobe_task *n_utask;
+	struct return_instance **p, *o, *n;
+
+	n_utask = kzalloc(sizeof(struct uprobe_task), GFP_KERNEL);
+	if (!n_utask)
+		return -ENOMEM;
+	t->utask = n_utask;
+
+	p = &n_utask->return_instances;
+	for (o = o_utask->return_instances; o; o = o->next) {
+		n = kmalloc(sizeof(struct return_instance), GFP_KERNEL);
+		if (!n)
+			return -ENOMEM;
+
+		*n = *o;
+		atomic_inc(&n->uprobe->ref);
+		n->next = NULL;
+
+		*p = n;
+		p = &n->next;
+		n_utask->depth++;
+	}
+
+	return 0;
+}
+
+static void uprobe_warn(struct task_struct *t, const char *msg)
+{
+	pr_warn("uprobe: %s:%d failed to %s\n",
+			current->comm, current->pid, msg);
+}
+
 /*
  * Called in context of a new clone/fork from copy_process.
  */
 void uprobe_copy_process(struct task_struct *t)
 {
+	struct uprobe_task *utask = current->utask;
+	struct mm_struct *mm = current->mm;
+
 	t->utask = NULL;
+
+	if (mm == t->mm || !utask || !utask->return_instances)
+		return;
+
+	if (dup_utask(t, utask))
+		return uprobe_warn(t, "dup ret instances");
 }
 
 /*
-- 
cgit 


From aa59c53fd4599c91ccf9629af0c2777b89929076 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Sun, 13 Oct 2013 21:18:44 +0200
Subject: uprobes: Change uprobe_copy_process() to dup xol_area

This finally fixes the serious bug in uretprobes: a forked child
crashes if the parent called fork() with the pending ret probe.

Trivial test-case:

	# perf probe -x /lib/libc.so.6 __fork%return
	# perf record -e probe_libc:__fork perl -le 'fork || print "OK"'

(the child doesn't print "OK", it is killed by SIGSEGV)

If the child returns from the probed function it actually returns
to trampoline_vaddr, because it got the copy of parent's stack
mangled by prepare_uretprobe() when the parent entered this func.

It crashes because a) this address is not mapped and b) until the
previous change it doesn't have the proper->return_instances info.

This means that uprobe_copy_process() has to create xol_area which
has the trampoline slot, and its vaddr should be equal to parent's
xol_area->vaddr.

Unfortunately, uprobe_copy_process() can not simply do
__create_xol_area(child, xol_area->vaddr). This could actually work
but perf_event_mmap() doesn't expect the usage of foreign ->mm. So
we offload this to task_work_run(), and pass the argument via not
yet used utask->vaddr.

We know that this vaddr is fine for install_special_mapping(), the
necessary hole was recently "created" by dup_mmap() which skips the
parent's VM_DONTCOPY area, and nobody else could use the new mm.

Unfortunately, this also means that we can not handle the errors
properly, we obviously can not abort the already completed fork().
So we simply print the warning if GFP_KERNEL allocation (the only
possible reason) fails.

Reported-by: Martin Cermak <mcermak@redhat.com>
Reported-by: David Smith <dsmith@redhat.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
---
 kernel/events/uprobes.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 1c6cda68a555..9f282e14925d 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -35,6 +35,7 @@
 #include <linux/kdebug.h>	/* notifier mechanism */
 #include "../../mm/internal.h"	/* munlock_vma_page */
 #include <linux/percpu-rwsem.h>
+#include <linux/task_work.h>
 
 #include <linux/uprobes.h>
 
@@ -1400,6 +1401,17 @@ static void uprobe_warn(struct task_struct *t, const char *msg)
 			current->comm, current->pid, msg);
 }
 
+static void dup_xol_work(struct callback_head *work)
+{
+	kfree(work);
+
+	if (current->flags & PF_EXITING)
+		return;
+
+	if (!__create_xol_area(current->utask->vaddr))
+		uprobe_warn(current, "dup xol area");
+}
+
 /*
  * Called in context of a new clone/fork from copy_process.
  */
@@ -1407,6 +1419,8 @@ void uprobe_copy_process(struct task_struct *t)
 {
 	struct uprobe_task *utask = current->utask;
 	struct mm_struct *mm = current->mm;
+	struct callback_head *work;
+	struct xol_area *area;
 
 	t->utask = NULL;
 
@@ -1415,6 +1429,20 @@ void uprobe_copy_process(struct task_struct *t)
 
 	if (dup_utask(t, utask))
 		return uprobe_warn(t, "dup ret instances");
+
+	/* The task can fork() after dup_xol_work() fails */
+	area = mm->uprobes_state.xol_area;
+	if (!area)
+		return uprobe_warn(t, "dup xol area");
+
+	/* TODO: move it into the union in uprobe_task */
+	work = kmalloc(sizeof(*work), GFP_KERNEL);
+	if (!work)
+		return uprobe_warn(t, "dup xol area");
+
+	utask->vaddr = area->vaddr;
+	init_task_work(work, dup_xol_work);
+	task_work_add(t, work, true);
 }
 
 /*
-- 
cgit 


From 3ab679661721b1ec2aaad99a801870ed59ab1110 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Wed, 16 Oct 2013 19:39:37 +0200
Subject: uprobes: Teach uprobe_copy_process() to handle CLONE_VFORK

uprobe_copy_process() does nothing if the child shares ->mm with
the forking process, but there is a special case: CLONE_VFORK.
In this case it would be more correct to do dup_utask() but avoid
dup_xol(). This is not that important, the child should not unwind
its stack too much, this can corrupt the parent's stack, but at
least we need this to allow to ret-probe __vfork() itself.

Note: in theory, it would be better to check task_pt_regs(p)->sp
instead of CLONE_VFORK, we need to dup_utask() if and only if the
child can return from the function called by the parent. But this
needs the arch-dependant helper, and I think that nobody actually
does clone(same_stack, CLONE_VM).

Reported-by: Martin Cermak <mcermak@redhat.com>
Reported-by: David Smith <dsmith@redhat.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
---
 include/linux/uprobes.h |  4 ++--
 kernel/events/uprobes.c | 10 ++++++++--
 kernel/fork.c           |  2 +-
 3 files changed, 11 insertions(+), 5 deletions(-)

diff --git a/include/linux/uprobes.h b/include/linux/uprobes.h
index e6fba627ea45..9e0d5a6fe7a8 100644
--- a/include/linux/uprobes.h
+++ b/include/linux/uprobes.h
@@ -117,7 +117,7 @@ extern void uprobe_start_dup_mmap(void);
 extern void uprobe_end_dup_mmap(void);
 extern void uprobe_dup_mmap(struct mm_struct *oldmm, struct mm_struct *newmm);
 extern void uprobe_free_utask(struct task_struct *t);
-extern void uprobe_copy_process(struct task_struct *t);
+extern void uprobe_copy_process(struct task_struct *t, unsigned long flags);
 extern unsigned long __weak uprobe_get_swbp_addr(struct pt_regs *regs);
 extern int uprobe_post_sstep_notifier(struct pt_regs *regs);
 extern int uprobe_pre_sstep_notifier(struct pt_regs *regs);
@@ -174,7 +174,7 @@ static inline unsigned long uprobe_get_swbp_addr(struct pt_regs *regs)
 static inline void uprobe_free_utask(struct task_struct *t)
 {
 }
-static inline void uprobe_copy_process(struct task_struct *t)
+static inline void uprobe_copy_process(struct task_struct *t, unsigned long flags)
 {
 }
 static inline void uprobe_clear_state(struct mm_struct *mm)
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 9f282e14925d..ae9e1d2ef256 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -1415,7 +1415,7 @@ static void dup_xol_work(struct callback_head *work)
 /*
  * Called in context of a new clone/fork from copy_process.
  */
-void uprobe_copy_process(struct task_struct *t)
+void uprobe_copy_process(struct task_struct *t, unsigned long flags)
 {
 	struct uprobe_task *utask = current->utask;
 	struct mm_struct *mm = current->mm;
@@ -1424,7 +1424,10 @@ void uprobe_copy_process(struct task_struct *t)
 
 	t->utask = NULL;
 
-	if (mm == t->mm || !utask || !utask->return_instances)
+	if (!utask || !utask->return_instances)
+		return;
+
+	if (mm == t->mm && !(flags & CLONE_VFORK))
 		return;
 
 	if (dup_utask(t, utask))
@@ -1435,6 +1438,9 @@ void uprobe_copy_process(struct task_struct *t)
 	if (!area)
 		return uprobe_warn(t, "dup xol area");
 
+	if (mm == t->mm)
+		return;
+
 	/* TODO: move it into the union in uprobe_task */
 	work = kmalloc(sizeof(*work), GFP_KERNEL);
 	if (!work)
diff --git a/kernel/fork.c b/kernel/fork.c
index d3603b81246b..8531609b6a82 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -1489,7 +1489,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 	perf_event_fork(p);
 
 	trace_task_newtask(p, clone_flags);
-	uprobe_copy_process(p);
+	uprobe_copy_process(p, clone_flags);
 
 	return p;
 
-- 
cgit 


From 16f00762a74169d8e1b63591d6ff2f8dff24d91e Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 20 Oct 2013 07:01:00 +0200
Subject: iwlwifi: remove duplicate includes

Reported by "make includecheck"

Tested that the corresponding sources still compile well on x86

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/iwl-io.c  | 1 -
 drivers/net/wireless/iwlwifi/mvm/mvm.h | 1 -
 2 files changed, 2 deletions(-)

diff --git a/drivers/net/wireless/iwlwifi/iwl-io.c b/drivers/net/wireless/iwlwifi/iwl-io.c
index dfa4d2e3aaa2..ad8e19a56eca 100644
--- a/drivers/net/wireless/iwlwifi/iwl-io.c
+++ b/drivers/net/wireless/iwlwifi/iwl-io.c
@@ -34,7 +34,6 @@
 #include "iwl-csr.h"
 #include "iwl-debug.h"
 #include "iwl-fh.h"
-#include "iwl-csr.h"
 
 #define IWL_POLL_INTERVAL 10	/* microseconds */
 
diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index 6235cb729f5c..fed21ef4162d 100644
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -73,7 +73,6 @@
 #include "iwl-trans.h"
 #include "iwl-notif-wait.h"
 #include "iwl-eeprom-parse.h"
-#include "iwl-trans.h"
 #include "sta.h"
 #include "fw-api.h"
 #include "constants.h"
-- 
cgit 


From 92f399c72af2d8cbb9d4f60e11d0d67ca738147f Mon Sep 17 00:00:00 2001
From: Shaohua Li <shli@fusionio.com>
Date: Tue, 29 Oct 2013 12:01:03 -0600
Subject: blk-mq: mq plug list breakage

We switched to plug mq_list for mq, but some code are still using old list.

Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-core.c | 8 +++++++-
 block/blk-mq.c   | 2 +-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index 9677c6525ed8..936876ab662d 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1401,13 +1401,19 @@ bool blk_attempt_plug_merge(struct request_queue *q, struct bio *bio,
 	struct blk_plug *plug;
 	struct request *rq;
 	bool ret = false;
+	struct list_head *plug_list;
 
 	plug = current->plug;
 	if (!plug)
 		goto out;
 	*request_count = 0;
 
-	list_for_each_entry_reverse(rq, &plug->list, queuelist) {
+	if (q->mq_ops)
+		plug_list = &plug->mq_list;
+	else
+		plug_list = &plug->list;
+
+	list_for_each_entry_reverse(rq, plug_list, queuelist) {
 		int el_ret;
 
 		if (rq->q == q)
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 2dc8de86d0d2..88d4e864d4c0 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -950,7 +950,7 @@ static void blk_mq_make_request(struct request_queue *q, struct bio *bio)
 
 		if (plug) {
 			blk_mq_bio_to_request(rq, bio);
-			if (list_empty(&plug->list))
+			if (list_empty(&plug->mq_list))
 				trace_block_plug(q);
 			else if (request_count >= BLK_MAX_REQUEST_COUNT) {
 				blk_flush_plug_list(plug, false);
-- 
cgit 


From e7e245000110a7794de8f925b9edc06a9c852f80 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Tue, 29 Oct 2013 12:11:47 -0600
Subject: blk-mq: don't disallow request merges for req->special being set

For blk-mq, if a driver has requested per-request payload data
to carry command structures, they are stuffed into req->special.
For an old style request based driver, req->special is used
for the same purpose but indicates that a per-driver request
structure has been prepared for the request already. So for the
old style driver, we do not merge such requests.

As most/all blk-mq drivers will use the payload feature, and
since we have no problem merging on these, make this check
dependent on whether it's a blk-mq enabled driver or not.

Reported-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-merge.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/block/blk-merge.c b/block/blk-merge.c
index 5f2448253797..1ffc58977835 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -308,6 +308,17 @@ int ll_front_merge_fn(struct request_queue *q, struct request *req,
 	return ll_new_hw_segment(q, req, bio);
 }
 
+/*
+ * blk-mq uses req->special to carry normal driver per-request payload, it
+ * does not indicate a prepared command that we cannot merge with.
+ */
+static bool req_no_special_merge(struct request *req)
+{
+	struct request_queue *q = req->q;
+
+	return !q->mq_ops && req->special;
+}
+
 static int ll_merge_requests_fn(struct request_queue *q, struct request *req,
 				struct request *next)
 {
@@ -319,7 +330,7 @@ static int ll_merge_requests_fn(struct request_queue *q, struct request *req,
 	 * First check if the either of the requests are re-queued
 	 * requests.  Can't merge them if they are.
 	 */
-	if (req->special || next->special)
+	if (req_no_special_merge(req) || req_no_special_merge(next))
 		return 0;
 
 	/*
@@ -416,7 +427,7 @@ static int attempt_merge(struct request_queue *q, struct request *req,
 
 	if (rq_data_dir(req) != rq_data_dir(next)
 	    || req->rq_disk != next->rq_disk
-	    || next->special)
+	    || req_no_special_merge(next))
 		return 0;
 
 	if (req->cmd_flags & REQ_WRITE_SAME &&
@@ -515,7 +526,7 @@ bool blk_rq_merge_ok(struct request *rq, struct bio *bio)
 		return false;
 
 	/* must be same device and not a special request */
-	if (rq->rq_disk != bio->bi_bdev->bd_disk || rq->special)
+	if (rq->rq_disk != bio->bi_bdev->bd_disk || req_no_special_merge(rq))
 		return false;
 
 	/* only merge integrity protected bio into ditto rq */
-- 
cgit 


From d241aac798eb042e605f78c31a4122e583b2cd13 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Fri, 2 Aug 2013 11:41:13 +0100
Subject: arm64: KVM: Yield CPU when vcpu executes a WFE

On an (even slightly) oversubscribed system, spinlocks are quickly
becoming a bottleneck, as some vcpus are spinning, waiting for a
lock to be released, while the vcpu holding the lock may not be
running at all.

The solution is to trap blocking WFEs and tell KVM that we're
now spinning. This ensures that other vpus will get a scheduling
boost, allowing the lock to be released more quickly. Also, using
CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT slightly improves the performance
when the VM is severely overcommited.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
 arch/arm64/include/asm/kvm_arm.h |  8 ++++++--
 arch/arm64/kvm/Kconfig           |  1 +
 arch/arm64/kvm/handle_exit.c     | 18 +++++++++++++-----
 3 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index a5f28e2720c7..c98ef4771c73 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -63,6 +63,7 @@
  * TAC:		Trap ACTLR
  * TSC:		Trap SMC
  * TSW:		Trap cache operations by set/way
+ * TWE:		Trap WFE
  * TWI:		Trap WFI
  * TIDCP:	Trap L2CTLR/L2ECTLR
  * BSU_IS:	Upgrade barriers to the inner shareable domain
@@ -72,8 +73,9 @@
  * FMO:		Override CPSR.F and enable signaling with VF
  * SWIO:	Turn set/way invalidates into set/way clean+invalidate
  */
-#define HCR_GUEST_FLAGS (HCR_TSC | HCR_TSW | HCR_TWI | HCR_VM | HCR_BSU_IS | \
-			 HCR_FB | HCR_TAC | HCR_AMO | HCR_IMO | HCR_FMO | \
+#define HCR_GUEST_FLAGS (HCR_TSC | HCR_TSW | HCR_TWE | HCR_TWI | HCR_VM | \
+			 HCR_BSU_IS | HCR_FB | HCR_TAC | \
+			 HCR_AMO | HCR_IMO | HCR_FMO | \
 			 HCR_SWIO | HCR_TIDCP | HCR_RW)
 #define HCR_VIRT_EXCP_MASK (HCR_VA | HCR_VI | HCR_VF)
 
@@ -242,4 +244,6 @@
 
 #define ESR_EL2_EC_xABT_xFSR_EXTABT	0x10
 
+#define ESR_EL2_EC_WFI_ISS_WFE	(1 << 0)
+
 #endif /* __ARM64_KVM_ARM_H__ */
diff --git a/arch/arm64/kvm/Kconfig b/arch/arm64/kvm/Kconfig
index 21e90820bd23..4480ab339a00 100644
--- a/arch/arm64/kvm/Kconfig
+++ b/arch/arm64/kvm/Kconfig
@@ -21,6 +21,7 @@ config KVM
 	select MMU_NOTIFIER
 	select PREEMPT_NOTIFIERS
 	select ANON_INODES
+	select HAVE_KVM_CPU_RELAX_INTERCEPT
 	select KVM_MMIO
 	select KVM_ARM_HOST
 	select KVM_ARM_VGIC
diff --git a/arch/arm64/kvm/handle_exit.c b/arch/arm64/kvm/handle_exit.c
index 9beaca033437..8da56067c304 100644
--- a/arch/arm64/kvm/handle_exit.c
+++ b/arch/arm64/kvm/handle_exit.c
@@ -47,21 +47,29 @@ static int handle_smc(struct kvm_vcpu *vcpu, struct kvm_run *run)
 }
 
 /**
- * kvm_handle_wfi - handle a wait-for-interrupts instruction executed by a guest
+ * kvm_handle_wfx - handle a wait-for-interrupts or wait-for-event
+ *		    instruction executed by a guest
+ *
  * @vcpu:	the vcpu pointer
  *
- * Simply call kvm_vcpu_block(), which will halt execution of
+ * WFE: Yield the CPU and come back to this vcpu when the scheduler
+ * decides to.
+ * WFI: Simply call kvm_vcpu_block(), which will halt execution of
  * world-switches and schedule other host processes until there is an
  * incoming IRQ or FIQ to the VM.
  */
-static int kvm_handle_wfi(struct kvm_vcpu *vcpu, struct kvm_run *run)
+static int kvm_handle_wfx(struct kvm_vcpu *vcpu, struct kvm_run *run)
 {
-	kvm_vcpu_block(vcpu);
+	if (kvm_vcpu_get_hsr(vcpu) & ESR_EL2_EC_WFI_ISS_WFE)
+		kvm_vcpu_on_spin(vcpu);
+	else
+		kvm_vcpu_block(vcpu);
+
 	return 1;
 }
 
 static exit_handle_fn arm_exit_handlers[] = {
-	[ESR_EL2_EC_WFI]	= kvm_handle_wfi,
+	[ESR_EL2_EC_WFI]	= kvm_handle_wfx,
 	[ESR_EL2_EC_CP15_32]	= kvm_handle_cp15_32,
 	[ESR_EL2_EC_CP15_64]	= kvm_handle_cp15_64,
 	[ESR_EL2_EC_CP14_MR]	= kvm_handle_cp14_access,
-- 
cgit 


From 329b4287a4fc1d5d98a9f74b6f4f5d986a6c61f4 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Mon, 28 Oct 2013 23:49:21 +0100
Subject: sata_rcar: Convert to clk_prepare/unprepare

Turn clk_enable() and clk_disable() calls into clk_prepare_enable() and
clk_disable_unprepare() to get ready for the migration to the common
clock framework.

Cc: linux-ide@vger.kernel.org
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 drivers/ata/sata_rcar.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c
index c2d95e9fb971..1dae9a9009f7 100644
--- a/drivers/ata/sata_rcar.c
+++ b/drivers/ata/sata_rcar.c
@@ -792,7 +792,7 @@ static int sata_rcar_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev, "failed to get access to sata clock\n");
 		return PTR_ERR(priv->clk);
 	}
-	clk_enable(priv->clk);
+	clk_prepare_enable(priv->clk);
 
 	host = ata_host_alloc(&pdev->dev, 1);
 	if (!host) {
@@ -822,7 +822,7 @@ static int sata_rcar_probe(struct platform_device *pdev)
 		return 0;
 
 cleanup:
-	clk_disable(priv->clk);
+	clk_disable_unprepare(priv->clk);
 
 	return ret;
 }
@@ -841,7 +841,7 @@ static int sata_rcar_remove(struct platform_device *pdev)
 	iowrite32(0, base + SATAINTSTAT_REG);
 	iowrite32(0x7ff, base + SATAINTMASK_REG);
 
-	clk_disable(priv->clk);
+	clk_disable_unprepare(priv->clk);
 
 	return 0;
 }
@@ -861,7 +861,7 @@ static int sata_rcar_suspend(struct device *dev)
 		/* mask */
 		iowrite32(0x7ff, base + SATAINTMASK_REG);
 
-		clk_disable(priv->clk);
+		clk_disable_unprepare(priv->clk);
 	}
 
 	return ret;
@@ -873,7 +873,7 @@ static int sata_rcar_resume(struct device *dev)
 	struct sata_rcar_priv *priv = host->private_data;
 	void __iomem *base = priv->base;
 
-	clk_enable(priv->clk);
+	clk_prepare_enable(priv->clk);
 
 	/* ack and mask */
 	iowrite32(0, base + SATAINTSTAT_REG);
-- 
cgit 


From 9b5cd0948b67e1750498b5ff85267e87d3b4c5b3 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Sat, 12 Oct 2013 14:11:02 +0800
Subject: PCI: imx6: Remove redundant dev_err() in imx6_pcie_probe()

There is an error message within devm_ioremap_resource()
already, so remove the dev_err() call to avoid redundant
error message.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
---
 drivers/pci/host/pci-imx6.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/pci/host/pci-imx6.c b/drivers/pci/host/pci-imx6.c
index 5afa9226a080..51338ac5775d 100644
--- a/drivers/pci/host/pci-imx6.c
+++ b/drivers/pci/host/pci-imx6.c
@@ -439,7 +439,6 @@ static int __init imx6_pcie_probe(struct platform_device *pdev)
 
 	pp->dbi_base = devm_ioremap_resource(&pdev->dev, dbi_base);
 	if (IS_ERR(pp->dbi_base)) {
-		dev_err(&pdev->dev, "unable to remap dbi_base\n");
 		ret = PTR_ERR(pp->dbi_base);
 		goto err;
 	}
-- 
cgit 


From 869a16157d1ac92a61770be0bc1cf83fbe99d724 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Thu, 10 Oct 2013 20:58:11 +0800
Subject: PCI: Fail MSI/MSI-X initialization if device is not in PCI_D0

Currently, pci_enable_msi() and pci_enable_msix() return success even if
the device power state is not D0.  However, we don't write the MSI message
to the device registers, and the registers will never be updated later.

This patch makes pci_enable_msi() and pci_enable_msix() return an error
instead.

[bhelgaas: changelog]
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Acked-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/msi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index d5f90d6383bc..604265c40853 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -831,7 +831,7 @@ int pci_enable_msi_block(struct pci_dev *dev, unsigned int nvec)
 	int status, maxvec;
 	u16 msgctl;
 
-	if (!dev->msi_cap)
+	if (!dev->msi_cap || dev->current_state != PCI_D0)
 		return -EINVAL;
 
 	pci_read_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, &msgctl);
@@ -862,7 +862,7 @@ int pci_enable_msi_block_auto(struct pci_dev *dev, unsigned int *maxvec)
 	int ret, nvec;
 	u16 msgctl;
 
-	if (!dev->msi_cap)
+	if (!dev->msi_cap || dev->current_state != PCI_D0)
 		return -EINVAL;
 
 	pci_read_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, &msgctl);
@@ -955,7 +955,7 @@ int pci_enable_msix(struct pci_dev *dev, struct msix_entry *entries, int nvec)
 	int status, nr_entries;
 	int i, j;
 
-	if (!entries || !dev->msix_cap)
+	if (!entries || !dev->msix_cap || dev->current_state != PCI_D0)
 		return -EINVAL;
 
 	status = pci_msi_check_device(dev, nvec, PCI_CAP_ID_MSIX);
-- 
cgit 


From 4ec3ed7f5e91e9325c810dcb995ef5a55e4a79a6 Mon Sep 17 00:00:00 2001
From: Tim Harvey <tharvey@gateworks.com>
Date: Thu, 17 Oct 2013 17:27:22 -0700
Subject: PCI: imx6: Fix imprecise abort handler

An imprecise abort is triggered when a port behind a switch is accessed
and no device is present.  At enumeration, imprecise aborts are not enabled
thus this ends up getting deferred until the kernel has completed init.  At
that point we must not adjust PC - the handler must do nothing, but a
handler must exist.

This fixes random crashes that occur right after freeing init.

Tested-by: Marek Vasut <marex@denx.de>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
---
 drivers/pci/host/pci-imx6.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/pci/host/pci-imx6.c b/drivers/pci/host/pci-imx6.c
index 51338ac5775d..7426ad961b81 100644
--- a/drivers/pci/host/pci-imx6.c
+++ b/drivers/pci/host/pci-imx6.c
@@ -200,12 +200,6 @@ static int pcie_phy_write(void __iomem *dbi_base, int addr, int data)
 static int imx6q_pcie_abort_handler(unsigned long addr,
 		unsigned int fsr, struct pt_regs *regs)
 {
-	/*
-	 * If it was an imprecise abort, then we need to correct the
-	 * return address to be _after_ the instruction.
-	 */
-	if (fsr & (1 << 10))
-		regs->ARM_pc += 4;
 	return 0;
 }
 
-- 
cgit 


From 5fadea22860d315330b51aa16569e05e4f1c610b Mon Sep 17 00:00:00 2001
From: Ye He <ye.he@csr.com>
Date: Sun, 22 Sep 2013 17:00:51 +0800
Subject: ARM: dts: sirf: add missed memcontrol-monitor node in prima2 and
 atlas6 dts

memcontrol-monitor provides the ability of monitoring the memory bandwidth.

Signed-off-by: Ye He <ye.he@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/boot/dts/atlas6.dtsi | 9 ++++++++-
 arch/arm/boot/dts/prima2.dtsi | 9 ++++++++-
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/atlas6.dtsi b/arch/arm/boot/dts/atlas6.dtsi
index 6db4f81d4795..e53dc6d4eb26 100644
--- a/arch/arm/boot/dts/atlas6.dtsi
+++ b/arch/arm/boot/dts/atlas6.dtsi
@@ -75,10 +75,17 @@
 
 			memory-controller@90000000 {
 				compatible = "sirf,prima2-memc";
-				reg = <0x90000000 0x10000>;
+				reg = <0x90000000 0x2000>;
 				interrupts = <27>;
 				clocks = <&clks 5>;
 			};
+
+			memc-monitor {
+				compatible = "sirf,prima2-memcmon";
+				reg = <0x90002000 0x200>;
+				interrupts = <4>;
+				clocks = <&clks 32>;
+			};
 		};
 
 		disp-iobg {
diff --git a/arch/arm/boot/dts/prima2.dtsi b/arch/arm/boot/dts/prima2.dtsi
index 27ed9f5144bc..34e29b80f97f 100644
--- a/arch/arm/boot/dts/prima2.dtsi
+++ b/arch/arm/boot/dts/prima2.dtsi
@@ -86,10 +86,17 @@
 
 			memory-controller@90000000 {
 				compatible = "sirf,prima2-memc";
-				reg = <0x90000000 0x10000>;
+				reg = <0x90000000 0x2000>;
 				interrupts = <27>;
 				clocks = <&clks 5>;
 			};
+
+			memc-monitor {
+				compatible = "sirf,prima2-memcmon";
+				reg = <0x90002000 0x200>;
+				interrupts = <4>;
+				clocks = <&clks 32>;
+			};
 		};
 
 		disp-iobg {
-- 
cgit 


From 0671840cce0cccc99d6a8b7ec8d6130589a875ac Mon Sep 17 00:00:00 2001
From: Barry Song <Baohua.Song@csr.com>
Date: Sun, 22 Sep 2013 18:21:03 +0800
Subject: ARM: dts: sirf: add missed chhifbg node in prima2 and atlas6 dts

CPHIF(Cell phone interface) is behind sys bridge, this patch adds the
missed node.

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/boot/dts/atlas6.dtsi | 5 +++++
 arch/arm/boot/dts/prima2.dtsi | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/atlas6.dtsi b/arch/arm/boot/dts/atlas6.dtsi
index e53dc6d4eb26..22a5fa6fdedf 100644
--- a/arch/arm/boot/dts/atlas6.dtsi
+++ b/arch/arm/boot/dts/atlas6.dtsi
@@ -65,6 +65,11 @@
 				compatible = "sirf,prima2-rsc";
 				reg = <0x88020000 0x1000>;
 			};
+
+			cphifbg@88030000 {
+				compatible = "sirf,prima2-cphifbg";
+				reg = <0x88030000 0x1000>;
+			};
 		};
 
 		mem-iobg {
diff --git a/arch/arm/boot/dts/prima2.dtsi b/arch/arm/boot/dts/prima2.dtsi
index 34e29b80f97f..030943085ca8 100644
--- a/arch/arm/boot/dts/prima2.dtsi
+++ b/arch/arm/boot/dts/prima2.dtsi
@@ -76,6 +76,11 @@
 				compatible = "sirf,prima2-rsc";
 				reg = <0x88020000 0x1000>;
 			};
+
+			cphifbg@88030000 {
+				compatible = "sirf,prima2-cphifbg";
+				reg = <0x88030000 0x1000>;
+			};
 		};
 
 		mem-iobg {
-- 
cgit 


From 304ec42fe9764e32a258125877b418e3f3d67b0a Mon Sep 17 00:00:00 2001
From: Jiansong Chen <jiansong.chen@csr.com>
Date: Thu, 5 Sep 2013 18:33:17 +0800
Subject: ARM: dts: sirf: add missed graphics2d iobg in atlas6 dts

there is a bus bridge for graphics 2D module lost in current dts, this patch takes it
back.

Signed-off-by: Jiansong Chen <jiansong.chen@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/boot/dts/atlas6.dtsi | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/atlas6.dtsi b/arch/arm/boot/dts/atlas6.dtsi
index 22a5fa6fdedf..98e7afbd47bd 100644
--- a/arch/arm/boot/dts/atlas6.dtsi
+++ b/arch/arm/boot/dts/atlas6.dtsi
@@ -132,6 +132,20 @@
 			};
 		};
 
+		graphics2d-iobg {
+			compatible = "simple-bus";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0xa0000000 0xa0000000 0x8000000>;
+
+			ble@a0000000 {
+				compatible = "sirf,atlas6-ble";
+				reg = <0xa0000000 0x2000>;
+				interrupts = <5>;
+				clocks = <&clks 33>;
+			};
+		};
+
 		dsp-iobg {
 			compatible = "simple-bus";
 			#address-cells = <1>;
-- 
cgit 


From 6f4251158a6a748a50ba2f3c9928090fd497d1cf Mon Sep 17 00:00:00 2001
From: Barry Song <Baohua.Song@csr.com>
Date: Mon, 23 Sep 2013 23:29:56 +0800
Subject: ARM: dts: sirf: add missed cell, cs and dma channel for SPI nodes

here we need to add missed cell, cs and dma channels prop in SPI nodes
to match with drivers.

Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/boot/dts/atlas6.dtsi |  5 +++++
 arch/arm/boot/dts/prima2.dtsi | 12 ++++++++++++
 2 files changed, 17 insertions(+)

diff --git a/arch/arm/boot/dts/atlas6.dtsi b/arch/arm/boot/dts/atlas6.dtsi
index 98e7afbd47bd..a49032c6e199 100644
--- a/arch/arm/boot/dts/atlas6.dtsi
+++ b/arch/arm/boot/dts/atlas6.dtsi
@@ -297,6 +297,11 @@
 				compatible = "sirf,prima2-spi";
 				reg = <0xb0170000 0x10000>;
 				interrupts = <16>;
+				sirf,spi-num-chipselects = <1>;
+				sirf,spi-dma-rx-channel = <12>;
+				sirf,spi-dma-tx-channel = <13>;
+				#address-cells = <1>;
+				#size-cells = <0>;
 				clocks = <&clks 20>;
 				status = "disabled";
 			};
diff --git a/arch/arm/boot/dts/prima2.dtsi b/arch/arm/boot/dts/prima2.dtsi
index 030943085ca8..afe309f6e854 100644
--- a/arch/arm/boot/dts/prima2.dtsi
+++ b/arch/arm/boot/dts/prima2.dtsi
@@ -299,7 +299,13 @@
 				compatible = "sirf,prima2-spi";
 				reg = <0xb00d0000 0x10000>;
 				interrupts = <15>;
+				sirf,spi-num-chipselects = <1>;
+				sirf,spi-dma-rx-channel = <25>;
+				sirf,spi-dma-tx-channel = <20>;
+				#address-cells = <1>;
+				#size-cells = <0>;
 				clocks = <&clks 19>;
+				status = "disabled";
 			};
 
 			spi1: spi@b0170000 {
@@ -307,7 +313,13 @@
 				compatible = "sirf,prima2-spi";
 				reg = <0xb0170000 0x10000>;
 				interrupts = <16>;
+				sirf,spi-num-chipselects = <1>;
+				sirf,spi-dma-rx-channel = <12>;
+				sirf,spi-dma-tx-channel = <13>;
+				#address-cells = <1>;
+				#size-cells = <0>;
 				clocks = <&clks 20>;
+				status = "disabled";
 			};
 
 			i2c0: i2c@b00e0000 {
-- 
cgit 


From 7a54a4baf0a319ccf7796f54f7848d207b84c553 Mon Sep 17 00:00:00 2001
From: Renwei Wu <Renwei.Wu@csr.com>
Date: Mon, 23 Sep 2013 23:37:42 +0800
Subject: ARM: dts: sirf: add missed address-cells and size-cells for prima2
 I2C

here prima2 i2c node is lacking of address-cells and size-cells.

Signed-off-by: Renwei Wu <Renwei.Wu@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/boot/dts/prima2.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/prima2.dtsi b/arch/arm/boot/dts/prima2.dtsi
index afe309f6e854..7cf78afee7b1 100644
--- a/arch/arm/boot/dts/prima2.dtsi
+++ b/arch/arm/boot/dts/prima2.dtsi
@@ -328,6 +328,8 @@
 				reg = <0xb00e0000 0x10000>;
 				interrupts = <24>;
 				clocks = <&clks 17>;
+				#address-cells = <1>;
+				#size-cells = <0>;
 			};
 
 			i2c1: i2c@b00f0000 {
@@ -336,6 +338,8 @@
 				reg = <0xb00f0000 0x10000>;
 				interrupts = <25>;
 				clocks = <&clks 18>;
+				#address-cells = <1>;
+				#size-cells = <0>;
 			};
 
 			tsc@b0110000 {
-- 
cgit 


From 331d7d6afe586477ba8804e653fd013b925bbeca Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 29 Oct 2013 15:12:34 +0900
Subject: ARM: dts: use 'status' property for PCIe nodes

Set the default status for PCIe to disabled in the exynos5440.dtsi
file and let the board dts files such as exynos5440-ssdk5440.dts
enable the PCIe. However, keep the PCIe for SD5v1 board disabled,
because there is no PCIe slot on SD5v1 board.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/boot/dts/exynos5440-ssdk5440.dts | 2 ++
 arch/arm/boot/dts/exynos5440.dtsi         | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/exynos5440-ssdk5440.dts b/arch/arm/boot/dts/exynos5440-ssdk5440.dts
index ede772741f81..4808a5af099b 100644
--- a/arch/arm/boot/dts/exynos5440-ssdk5440.dts
+++ b/arch/arm/boot/dts/exynos5440-ssdk5440.dts
@@ -68,9 +68,11 @@
 
 	pcie@290000 {
 		reset-gpio = <&pin_ctrl 5 0>;
+		status = "okay";
 	};
 
 	pcie@2a0000 {
 		reset-gpio = <&pin_ctrl 22 0>;
+		status = "okay";
 	};
 };
diff --git a/arch/arm/boot/dts/exynos5440.dtsi b/arch/arm/boot/dts/exynos5440.dtsi
index 5d6cf4965d6e..8da107088ce4 100644
--- a/arch/arm/boot/dts/exynos5440.dtsi
+++ b/arch/arm/boot/dts/exynos5440.dtsi
@@ -276,6 +276,7 @@
 		interrupt-map-mask = <0 0 0 0>;
 		interrupt-map = <0x0 0 &gic 53>;
 		num-lanes = <4>;
+		status = "disabled";
 	};
 
 	pcie@2a0000 {
@@ -296,5 +297,6 @@
 		interrupt-map-mask = <0 0 0 0>;
 		interrupt-map = <0x0 0 &gic 56>;
 		num-lanes = <4>;
+		status = "disabled";
 	};
 };
-- 
cgit 


From dbee7169742e81e42bcef0bbc6c42b20d4f665f0 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@huawei.com>
Date: Thu, 12 Sep 2013 00:07:15 +0800
Subject: MIPS: SMP: kill redundant call of
 generic_smp_call_function_single_interrupt()

Since commit 9a46ad6d6df3b54 "smp: make smp_call_function_many() use
logic similar to smp_call_function_single()",
generic_smp_call_function_single_interrupt() is an alias of
generic_smp_call_function_interrupt(), so kill the redundant call.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Jiang Liu <liuj97@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Shaohua Li <shli@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Jiri Kosina <trivial@kernel.org>
Cc: Wang YanQing <udknight@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/5820/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/smp.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 5c208ed8f856..0a022ee33b2a 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -150,7 +150,6 @@ asmlinkage void start_secondary(void)
 void __irq_entry smp_call_function_interrupt(void)
 {
 	irq_enter();
-	generic_smp_call_function_single_interrupt();
 	generic_smp_call_function_interrupt();
 	irq_exit();
 }
-- 
cgit 


From c6e7274e7a04af90b6dd7b507e1ea15dbe37b2e0 Mon Sep 17 00:00:00 2001
From: Julia Lawall <Julia.Lawall@lip6.fr>
Date: Mon, 19 Aug 2013 10:51:56 +0200
Subject: MIPS: ath79: simplify
 platform_get_resource_byname/devm_ioremap_resource

Remove unneeded error handling on the result of a call to
platform_get_resource_byname when the value is passed to devm_ioremap_resource.

A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression pdev,res,e,e1;
expression ret != 0;
identifier l;
@@

  res = platform_get_resource_byname(...);
- if (res == NULL) { ... \(goto l;\|return ret;\) }
  e = devm_ioremap_resource(e1, res);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Gabor Juhos <juhosg@openwrt.org>
Cc: kernel-janitors@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/5725/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/pci/pci-ar71xx.c | 3 ---
 arch/mips/pci/pci-ar724x.c | 9 ---------
 2 files changed, 12 deletions(-)

diff --git a/arch/mips/pci/pci-ar71xx.c b/arch/mips/pci/pci-ar71xx.c
index 18517dd0f709..d471a26dd5f8 100644
--- a/arch/mips/pci/pci-ar71xx.c
+++ b/arch/mips/pci/pci-ar71xx.c
@@ -363,9 +363,6 @@ static int ar71xx_pci_probe(struct platform_device *pdev)
 	spin_lock_init(&apc->lock);
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cfg_base");
-	if (!res)
-		return -EINVAL;
-
 	apc->cfg_base = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(apc->cfg_base))
 		return PTR_ERR(apc->cfg_base);
diff --git a/arch/mips/pci/pci-ar724x.c b/arch/mips/pci/pci-ar724x.c
index 65ec032fa0b4..785b2659b519 100644
--- a/arch/mips/pci/pci-ar724x.c
+++ b/arch/mips/pci/pci-ar724x.c
@@ -362,25 +362,16 @@ static int ar724x_pci_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ctrl_base");
-	if (!res)
-		return -EINVAL;
-
 	apc->ctrl_base = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(apc->ctrl_base))
 		return PTR_ERR(apc->ctrl_base);
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cfg_base");
-	if (!res)
-		return -EINVAL;
-
 	apc->devcfg_base = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(apc->devcfg_base))
 		return PTR_ERR(apc->devcfg_base);
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "crp_base");
-	if (!res)
-		return -EINVAL;
-
 	apc->crp_base = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(apc->crp_base))
 		return PTR_ERR(apc->crp_base);
-- 
cgit 


From 1a9db0a9ea11ebf2d83d928f4933f21bf6a808e9 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Tue, 17 Sep 2013 10:13:29 +0200
Subject: MIPS: ath79: Remove ar933x_uart_platform.h header

In commit 15ef17f622033455dcf03ae96256e474073a7b11
(tty: ar933x_uart: use the clk API to get the uart
clock), the AR933x UART driver for has been converted
to get the uart clock rate via the clock API and it
does not use the platform data anymore.

Remove the ar933x_uart_platform.h header file and get
rid of the superfluous variable and initialization code
in platform setup.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5832/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/ath79/dev-common.c                           |  6 ------
 .../mips/include/asm/mach-ath79/ar933x_uart_platform.h | 18 ------------------
 2 files changed, 24 deletions(-)
 delete mode 100644 arch/mips/include/asm/mach-ath79/ar933x_uart_platform.h

diff --git a/arch/mips/ath79/dev-common.c b/arch/mips/ath79/dev-common.c
index c3b04c929f29..516225d207ee 100644
--- a/arch/mips/ath79/dev-common.c
+++ b/arch/mips/ath79/dev-common.c
@@ -20,7 +20,6 @@
 
 #include <asm/mach-ath79/ath79.h>
 #include <asm/mach-ath79/ar71xx_regs.h>
-#include <asm/mach-ath79/ar933x_uart_platform.h>
 #include "common.h"
 #include "dev-common.h"
 
@@ -68,15 +67,11 @@ static struct resource ar933x_uart_resources[] = {
 	},
 };
 
-static struct ar933x_uart_platform_data ar933x_uart_data;
 static struct platform_device ar933x_uart_device = {
 	.name		= "ar933x-uart",
 	.id		= -1,
 	.resource	= ar933x_uart_resources,
 	.num_resources	= ARRAY_SIZE(ar933x_uart_resources),
-	.dev = {
-		.platform_data	= &ar933x_uart_data,
-	},
 };
 
 void __init ath79_register_uart(void)
@@ -93,7 +88,6 @@ void __init ath79_register_uart(void)
 		ath79_uart_data[0].uartclk = uart_clk_rate;
 		platform_device_register(&ath79_uart_device);
 	} else if (soc_is_ar933x()) {
-		ar933x_uart_data.uartclk = uart_clk_rate;
 		platform_device_register(&ar933x_uart_device);
 	} else {
 		BUG();
diff --git a/arch/mips/include/asm/mach-ath79/ar933x_uart_platform.h b/arch/mips/include/asm/mach-ath79/ar933x_uart_platform.h
deleted file mode 100644
index 6cb30f2b7198..000000000000
--- a/arch/mips/include/asm/mach-ath79/ar933x_uart_platform.h
+++ /dev/null
@@ -1,18 +0,0 @@
-/*
- *  Platform data definition for Atheros AR933X UART
- *
- *  Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
- *
- *  This program is free software; you can redistribute it and/or modify it
- *  under the terms of the GNU General Public License version 2 as published
- *  by the Free Software Foundation.
- */
-
-#ifndef _AR933X_UART_PLATFORM_H
-#define _AR933X_UART_PLATFORM_H
-
-struct ar933x_uart_platform_data {
-	unsigned	uartclk;
-};
-
-#endif /* _AR933X_UART_PLATFORM_H */
-- 
cgit 


From c2377a42cd7696022448bcebaa12b07427dc1038 Mon Sep 17 00:00:00 2001
From: Jayachandran C <jchandra@broadcom.com>
Date: Sun, 11 Aug 2013 17:10:16 +0530
Subject: MIPS: Move definition of SMP processor id register to header file

The definition of the CP0 register used to save the smp processor
id is repicated in many files, move them all to thread_info.h.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5708/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/include/asm/mmu_context.h | 16 ++++-------
 arch/mips/include/asm/stackframe.h  | 24 ++++------------
 arch/mips/include/asm/thread_info.h | 33 +++++++++++++++++++++-
 arch/mips/mm/tlbex.c                | 56 ++++---------------------------------
 4 files changed, 49 insertions(+), 80 deletions(-)

diff --git a/arch/mips/include/asm/mmu_context.h b/arch/mips/include/asm/mmu_context.h
index 3b29079b5424..ab8e26051ed7 100644
--- a/arch/mips/include/asm/mmu_context.h
+++ b/arch/mips/include/asm/mmu_context.h
@@ -35,10 +35,11 @@ do {									\
 #define TLBMISS_HANDLER_SETUP()						\
 	do {								\
 		TLBMISS_HANDLER_SETUP_PGD(swapper_pg_dir);		\
-		write_c0_xcontext((unsigned long) smp_processor_id() << 51); \
+		write_c0_xcontext((unsigned long) smp_processor_id() <<	\
+						SMP_CPUID_REGSHIFT);	\
 	} while (0)
 
-#else /* CONFIG_MIPS_PGD_C0_CONTEXT: using  pgd_current*/
+#else /* !CONFIG_MIPS_PGD_C0_CONTEXT: using  pgd_current*/
 
 /*
  * For the fast tlb miss handlers, we keep a per cpu array of pointers
@@ -50,18 +51,11 @@ extern unsigned long pgd_current[];
 #define TLBMISS_HANDLER_SETUP_PGD(pgd) \
 	pgd_current[smp_processor_id()] = (unsigned long)(pgd)
 
-#ifdef CONFIG_32BIT
 #define TLBMISS_HANDLER_SETUP()						\
-	write_c0_context((unsigned long) smp_processor_id() << 25);	\
+	write_c0_context((unsigned long) smp_processor_id() <<		\
+						SMP_CPUID_REGSHIFT);	\
 	back_to_back_c0_hazard();					\
 	TLBMISS_HANDLER_SETUP_PGD(swapper_pg_dir)
-#endif
-#ifdef CONFIG_64BIT
-#define TLBMISS_HANDLER_SETUP()						\
-	write_c0_context((unsigned long) smp_processor_id() << 26);	\
-	back_to_back_c0_hazard();					\
-	TLBMISS_HANDLER_SETUP_PGD(swapper_pg_dir)
-#endif
 #endif /* CONFIG_MIPS_PGD_C0_CONTEXT*/
 #if defined(CONFIG_CPU_R3000) || defined(CONFIG_CPU_TX39XX)
 
diff --git a/arch/mips/include/asm/stackframe.h b/arch/mips/include/asm/stackframe.h
index 23fc95e65673..4857e2c8df5a 100644
--- a/arch/mips/include/asm/stackframe.h
+++ b/arch/mips/include/asm/stackframe.h
@@ -17,6 +17,7 @@
 #include <asm/asmmacro.h>
 #include <asm/mipsregs.h>
 #include <asm/asm-offsets.h>
+#include <asm/thread_info.h>
 
 /*
  * For SMTC kernel, global IE should be left set, and interrupts
@@ -93,21 +94,8 @@
 		.endm
 
 #ifdef CONFIG_SMP
-#ifdef CONFIG_MIPS_MT_SMTC
-#define PTEBASE_SHIFT	19	/* TCBIND */
-#define CPU_ID_REG CP0_TCBIND
-#define CPU_ID_MFC0 mfc0
-#elif defined(CONFIG_MIPS_PGD_C0_CONTEXT)
-#define PTEBASE_SHIFT	48	/* XCONTEXT */
-#define CPU_ID_REG CP0_XCONTEXT
-#define CPU_ID_MFC0 MFC0
-#else
-#define PTEBASE_SHIFT	23	/* CONTEXT */
-#define CPU_ID_REG CP0_CONTEXT
-#define CPU_ID_MFC0 MFC0
-#endif
 		.macro	get_saved_sp	/* SMP variation */
-		CPU_ID_MFC0	k0, CPU_ID_REG
+		ASM_CPUID_MFC0	k0, ASM_SMP_CPUID_REG
 #if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
 		lui	k1, %hi(kernelsp)
 #else
@@ -117,17 +105,17 @@
 		daddiu	k1, %hi(kernelsp)
 		dsll	k1, 16
 #endif
-		LONG_SRL	k0, PTEBASE_SHIFT
+		LONG_SRL	k0, SMP_CPUID_PTRSHIFT
 		LONG_ADDU	k1, k0
 		LONG_L	k1, %lo(kernelsp)(k1)
 		.endm
 
 		.macro	set_saved_sp stackp temp temp2
-		CPU_ID_MFC0	\temp, CPU_ID_REG
-		LONG_SRL	\temp, PTEBASE_SHIFT
+		ASM_CPUID_MFC0	\temp, ASM_SMP_CPUID_REG
+		LONG_SRL	\temp, SMP_CPUID_PTRSHIFT
 		LONG_S	\stackp, kernelsp(\temp)
 		.endm
-#else
+#else /* !CONFIG_SMP */
 		.macro	get_saved_sp	/* Uniprocessor variation */
 #ifdef CONFIG_CPU_JUMP_WORKAROUNDS
 		/*
diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
index 61215a34acc6..e0c8cf3b16ff 100644
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -147,6 +147,37 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_ALLWORK_MASK	(_TIF_NOHZ | _TIF_WORK_MASK |		\
 				 _TIF_WORK_SYSCALL_EXIT)
 
-#endif /* __KERNEL__ */
+/*
+ * We stash processor id into a COP0 register to retrieve it fast
+ * at kernel exception entry.
+ */
+#if defined(CONFIG_MIPS_MT_SMTC)
+#define SMP_CPUID_REG		2, 2	/* TCBIND */
+#define ASM_SMP_CPUID_REG	$2, 2
+#define SMP_CPUID_PTRSHIFT	19
+#elif defined(CONFIG_MIPS_PGD_C0_CONTEXT)
+#define SMP_CPUID_REG		20, 0	/* XCONTEXT */
+#define ASM_SMP_CPUID_REG	$20
+#define SMP_CPUID_PTRSHIFT	48
+#else
+#define SMP_CPUID_REG		4, 0	/* CONTEXT */
+#define ASM_SMP_CPUID_REG	$4
+#define SMP_CPUID_PTRSHIFT	23
+#endif
 
+#ifdef CONFIG_64BIT
+#define SMP_CPUID_REGSHIFT	(SMP_CPUID_PTRSHIFT + 3)
+#else
+#define SMP_CPUID_REGSHIFT	(SMP_CPUID_PTRSHIFT + 2)
+#endif
+
+#ifdef CONFIG_MIPS_MT_SMTC
+#define ASM_CPUID_MFC0		mfc0
+#define UASM_i_CPUID_MFC0	uasm_i_mfc0
+#else
+#define ASM_CPUID_MFC0		MFC0
+#define UASM_i_CPUID_MFC0	UASM_i_MFC0
+#endif
+
+#endif /* __KERNEL__ */
 #endif /* _ASM_THREAD_INFO_H */
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 9bb3a9363b06..444d92108396 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -340,10 +340,6 @@ static struct work_registers build_get_work_registers(u32 **p)
 {
 	struct work_registers r;
 
-	int smp_processor_id_reg;
-	int smp_processor_id_sel;
-	int smp_processor_id_shift;
-
 	if (scratch_reg >= 0) {
 		/* Save in CPU local C0_KScratch? */
 		UASM_i_MTC0(p, 1, c0_kscratch(), scratch_reg);
@@ -354,25 +350,9 @@ static struct work_registers build_get_work_registers(u32 **p)
 	}
 
 	if (num_possible_cpus() > 1) {
-#ifdef CONFIG_MIPS_PGD_C0_CONTEXT
-		smp_processor_id_shift = 51;
-		smp_processor_id_reg = 20; /* XContext */
-		smp_processor_id_sel = 0;
-#else
-# ifdef CONFIG_32BIT
-		smp_processor_id_shift = 25;
-		smp_processor_id_reg = 4; /* Context */
-		smp_processor_id_sel = 0;
-# endif
-# ifdef CONFIG_64BIT
-		smp_processor_id_shift = 26;
-		smp_processor_id_reg = 4; /* Context */
-		smp_processor_id_sel = 0;
-# endif
-#endif
 		/* Get smp_processor_id */
-		UASM_i_MFC0(p, K0, smp_processor_id_reg, smp_processor_id_sel);
-		UASM_i_SRL_SAFE(p, K0, K0, smp_processor_id_shift);
+		UASM_i_CPUID_MFC0(p, K0, SMP_CPUID_REG);
+		UASM_i_SRL_SAFE(p, K0, K0, SMP_CPUID_REGSHIFT);
 
 		/* handler_reg_save index in K0 */
 		UASM_i_SLL(p, K0, K0, ilog2(sizeof(struct tlb_reg_save)));
@@ -837,20 +817,8 @@ build_get_pmde64(u32 **p, struct uasm_label **l, struct uasm_reloc **r,
 		uasm_i_drotr(p, ptr, ptr, 11);
 	}
 #elif defined(CONFIG_SMP)
-# ifdef	 CONFIG_MIPS_MT_SMTC
-	/*
-	 * SMTC uses TCBind value as "CPU" index
-	 */
-	uasm_i_mfc0(p, ptr, C0_TCBIND);
-	uasm_i_dsrl_safe(p, ptr, ptr, 19);
-# else
-	/*
-	 * 64 bit SMP running in XKPHYS has smp_processor_id() << 3
-	 * stored in CONTEXT.
-	 */
-	uasm_i_dmfc0(p, ptr, C0_CONTEXT);
-	uasm_i_dsrl_safe(p, ptr, ptr, 23);
-# endif
+	UASM_i_CPUID_MFC0(p, ptr, SMP_CPUID_REG);
+	uasm_i_dsrl_safe(p, ptr, ptr, SMP_CPUID_PTRSHIFT);
 	UASM_i_LA_mostly(p, tmp, pgdc);
 	uasm_i_daddu(p, ptr, ptr, tmp);
 	uasm_i_dmfc0(p, tmp, C0_BADVADDR);
@@ -957,21 +925,9 @@ build_get_pgde32(u32 **p, unsigned int tmp, unsigned int ptr)
 
 	/* 32 bit SMP has smp_processor_id() stored in CONTEXT. */
 #ifdef CONFIG_SMP
-#ifdef	CONFIG_MIPS_MT_SMTC
-	/*
-	 * SMTC uses TCBind value as "CPU" index
-	 */
-	uasm_i_mfc0(p, ptr, C0_TCBIND);
+	uasm_i_mfc0(p, ptr, SMP_CPUID_REG);
 	UASM_i_LA_mostly(p, tmp, pgdc);
-	uasm_i_srl(p, ptr, ptr, 19);
-#else
-	/*
-	 * smp_processor_id() << 2 is stored in CONTEXT.
-	 */
-	uasm_i_mfc0(p, ptr, C0_CONTEXT);
-	UASM_i_LA_mostly(p, tmp, pgdc);
-	uasm_i_srl(p, ptr, ptr, 23);
-#endif
+	uasm_i_srl(p, ptr, ptr, SMP_CPUID_PTRSHIFT);
 	uasm_i_addu(p, ptr, tmp, ptr);
 #else
 	UASM_i_LA_mostly(p, ptr, pgdc);
-- 
cgit 


From 85f32dbdeb7a0139e667bcfcfc98bbf47ddfc24e Mon Sep 17 00:00:00 2001
From: Markos Chandras <markos.chandras@imgtec.com>
Date: Fri, 6 Sep 2013 10:47:26 +0100
Subject: MIPS: Kconfig: CMP support needs to select SMP as well

The CMP code is only designed to work with SMP configurations.
Fixes multiple build problems on certain randconfigs:

In file included from arch/mips/kernel/smp-cmp.c:34:0:
arch/mips/include/asm/smp.h:28:0:
error: "raw_smp_processor_id" redefined [-Werror]

In file included from include/linux/sched.h:30:0,
from arch/mips/kernel/smp-cmp.c:22:
include/linux/smp.h:135:0: note: this is the location of the
previous definition

In file included from arch/mips/kernel/smp-cmp.c:34:0:
arch/mips/include/asm/smp.h:57:20:
error: redefinition of 'smp_send_reschedule'

In file included from include/linux/sched.h:30:0,
from arch/mips/kernel/smp-cmp.c:22:
include/linux/smp.h:179:20: note: previous
definition of 'smp_send_reschedule' was here

In file included from arch/mips/kernel/smp-cmp.c:34:0:
arch/mips/include/asm/smp.h: In function 'smp_send_reschedule':
arch/mips/include/asm/smp.h:61:8:
error: dereferencing pointer to incomplete type
[...]

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/5812/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index f75ab4a2f246..c35603bb6ace 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1977,6 +1977,7 @@ config MIPS_VPE_APSP_API
 config MIPS_CMP
 	bool "MIPS CMP framework support"
 	depends on SYS_SUPPORTS_MIPS_CMP
+	select SMP
 	select SYNC_R4K
 	select SYS_SUPPORTS_SMP
 	select SYS_SUPPORTS_SCHED_SMT if SMP
-- 
cgit 


From 786c497a693c708465b937c05945beaea1164c12 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Wed, 18 Sep 2013 13:29:57 +0200
Subject: MIPS: BCM47XX: Add board detection

Detect on which board this code is running based on some nvram
settings. This is needed to start board specific workarounds and
configure the leds and buttons which are on different gpios on every board.

This patches add some boards we have seen, but there are many more.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5840
Patchwork: https://patchwork.linux-mips.org/patch/5855/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/bcm47xx/Makefile                         |   1 +
 arch/mips/bcm47xx/board.c                          | 309 +++++++++++++++++++++
 arch/mips/bcm47xx/setup.c                          |   2 +
 arch/mips/include/asm/mach-bcm47xx/bcm47xx_board.h | 110 ++++++++
 4 files changed, 422 insertions(+)
 create mode 100644 arch/mips/bcm47xx/board.c
 create mode 100644 arch/mips/include/asm/mach-bcm47xx/bcm47xx_board.h

diff --git a/arch/mips/bcm47xx/Makefile b/arch/mips/bcm47xx/Makefile
index f3bf6d5bfb9d..c52daf9b05c6 100644
--- a/arch/mips/bcm47xx/Makefile
+++ b/arch/mips/bcm47xx/Makefile
@@ -4,4 +4,5 @@
 #
 
 obj-y				+= irq.o nvram.o prom.o serial.o setup.o time.o sprom.o
+obj-y				+= board.o
 obj-$(CONFIG_BCM47XX_SSB)	+= wgt634u.o
diff --git a/arch/mips/bcm47xx/board.c b/arch/mips/bcm47xx/board.c
new file mode 100644
index 000000000000..f3f6bfe68a2a
--- /dev/null
+++ b/arch/mips/bcm47xx/board.c
@@ -0,0 +1,309 @@
+#include <linux/export.h>
+#include <linux/string.h>
+#include <bcm47xx_board.h>
+#include <bcm47xx_nvram.h>
+
+struct bcm47xx_board_type {
+	const enum bcm47xx_board board;
+	const char *name;
+};
+
+struct bcm47xx_board_type_list1 {
+	struct bcm47xx_board_type board;
+	const char *value1;
+};
+
+struct bcm47xx_board_type_list2 {
+	struct bcm47xx_board_type board;
+	const char *value1;
+	const char *value2;
+};
+
+struct bcm47xx_board_type_list3 {
+	struct bcm47xx_board_type board;
+	const char *value1;
+	const char *value2;
+	const char *value3;
+};
+
+struct bcm47xx_board_store {
+	enum bcm47xx_board board;
+	char name[BCM47XX_BOARD_MAX_NAME];
+};
+
+/* model_name */
+static const
+struct bcm47xx_board_type_list1 bcm47xx_board_list_model_name[] __initconst = {
+	{{BCM47XX_BOARD_DLINK_DIR130, "D-Link DIR-130"}, "DIR-130"},
+	{{BCM47XX_BOARD_DLINK_DIR330, "D-Link DIR-330"}, "DIR-330"},
+	{ {0}, 0},
+};
+
+/* model_no */
+static const
+struct bcm47xx_board_type_list1 bcm47xx_board_list_model_no[] __initconst = {
+	{{BCM47XX_BOARD_ASUS_WL700GE, "Asus WL700"}, "WL700"},
+	{ {0}, 0},
+};
+
+/* machine_name */
+static const
+struct bcm47xx_board_type_list1 bcm47xx_board_list_machine_name[] __initconst = {
+	{{BCM47XX_BOARD_LINKSYS_WRTSL54GS, "Linksys WRTSL54GS"}, "WRTSL54GS"},
+	{ {0}, 0},
+};
+
+/* hardware_version */
+static const
+struct bcm47xx_board_type_list1 bcm47xx_board_list_hardware_version[] __initconst = {
+	{{BCM47XX_BOARD_ASUS_RTN16, "Asus RT-N16"}, "RT-N16-"},
+	{{BCM47XX_BOARD_ASUS_WL320GE, "Asus WL320GE"}, "WL320G-"},
+	{{BCM47XX_BOARD_ASUS_WL330GE, "Asus WL330GE"}, "WL330GE-"},
+	{{BCM47XX_BOARD_ASUS_WL500GD, "Asus WL500GD"}, "WL500gd-"},
+	{{BCM47XX_BOARD_ASUS_WL500GPV1, "Asus WL500GP V1"}, "WL500gp-"},
+	{{BCM47XX_BOARD_ASUS_WL500GPV2, "Asus WL500GP V2"}, "WL500GPV2-"},
+	{{BCM47XX_BOARD_ASUS_WL500W, "Asus WL500W"}, "WL500gW-"},
+	{{BCM47XX_BOARD_ASUS_WL520GC, "Asus WL520GC"}, "WL520GC-"},
+	{{BCM47XX_BOARD_ASUS_WL520GU, "Asus WL520GU"}, "WL520GU-"},
+	{{BCM47XX_BOARD_BELKIN_F7D4301, "Belkin F7D4301"}, "F7D4301"},
+	{ {0}, 0},
+};
+
+/* productid */
+static const
+struct bcm47xx_board_type_list1 bcm47xx_board_list_productid[] __initconst = {
+	{{BCM47XX_BOARD_ASUS_RTAC66U, "Asus RT-AC66U"}, "RT-AC66U"},
+	{{BCM47XX_BOARD_ASUS_RTN10, "Asus RT-N10"}, "RT-N10"},
+	{{BCM47XX_BOARD_ASUS_RTN10D, "Asus RT-N10D"}, "RT-N10D"},
+	{{BCM47XX_BOARD_ASUS_RTN10U, "Asus RT-N10U"}, "RT-N10U"},
+	{{BCM47XX_BOARD_ASUS_RTN12, "Asus RT-N12"}, "RT-N12"},
+	{{BCM47XX_BOARD_ASUS_RTN12B1, "Asus RT-N12B1"}, "RT-N12B1"},
+	{{BCM47XX_BOARD_ASUS_RTN12C1, "Asus RT-N12C1"}, "RT-N12C1"},
+	{{BCM47XX_BOARD_ASUS_RTN12D1, "Asus RT-N12D1"}, "RT-N12D1"},
+	{{BCM47XX_BOARD_ASUS_RTN12HP, "Asus RT-N12HP"}, "RT-N12HP"},
+	{{BCM47XX_BOARD_ASUS_RTN15U, "Asus RT-N15U"}, "RT-N15U"},
+	{{BCM47XX_BOARD_ASUS_RTN16, "Asus RT-N16"}, "RT-N16"},
+	{{BCM47XX_BOARD_ASUS_RTN53, "Asus RT-N53"}, "RT-N53"},
+	{{BCM47XX_BOARD_ASUS_RTN66U, "Asus RT-N66U"}, "RT-N66U"},
+	{{BCM47XX_BOARD_ASUS_WL300G, "Asus WL300G"}, "WL300g"},
+	{{BCM47XX_BOARD_ASUS_WLHDD, "Asus WLHDD"}, "WLHDD"},
+	{ {0}, 0},
+};
+
+/* ModelId */
+static const
+struct bcm47xx_board_type_list1 bcm47xx_board_list_ModelId[] __initconst = {
+	{{BCM47XX_BOARD_DELL_TM2300, "Dell WX-5565"}, "WX-5565"},
+	{{BCM47XX_BOARD_MOTOROLA_WE800G, "Motorola WE800G"}, "WE800G"},
+	{{BCM47XX_BOARD_MOTOROLA_WR850GP, "Motorola WR850GP"}, "WR850GP"},
+	{{BCM47XX_BOARD_MOTOROLA_WR850GV2V3, "Motorola WR850G"}, "WR850G"},
+	{ {0}, 0},
+};
+
+/* melco_id or buf1falo_id */
+static const
+struct bcm47xx_board_type_list1 bcm47xx_board_list_melco_id[] __initconst = {
+	{{BCM47XX_BOARD_BUFFALO_WBR2_G54, "Buffalo WBR2-G54"}, "29bb0332"},
+	{{BCM47XX_BOARD_BUFFALO_WHR2_A54G54, "Buffalo WHR2-A54G54"}, "290441dd"},
+	{{BCM47XX_BOARD_BUFFALO_WHR_G125, "Buffalo WHR-G125"}, "32093"},
+	{{BCM47XX_BOARD_BUFFALO_WHR_G54S, "Buffalo WHR-G54S"}, "30182"},
+	{{BCM47XX_BOARD_BUFFALO_WHR_HP_G54, "Buffalo WHR-HP-G54"}, "30189"},
+	{{BCM47XX_BOARD_BUFFALO_WLA2_G54L, "Buffalo WLA2-G54L"}, "29129"},
+	{{BCM47XX_BOARD_BUFFALO_WZR_G300N, "Buffalo WZR-G300N"}, "31120"},
+	{{BCM47XX_BOARD_BUFFALO_WZR_RS_G54, "Buffalo WZR-RS-G54"}, "30083"},
+	{{BCM47XX_BOARD_BUFFALO_WZR_RS_G54HP, "Buffalo WZR-RS-G54HP"}, "30103"},
+	{ {0}, 0},
+};
+
+/* boot_hw_model, boot_hw_ver */
+static const
+struct bcm47xx_board_type_list2 bcm47xx_board_list_boot_hw[] __initconst = {
+	/* like WRT160N v3.0 */
+	{{BCM47XX_BOARD_CISCO_M10V1, "Cisco M10"}, "M10", "1.0"},
+	/* like WRT310N v2.0 */
+	{{BCM47XX_BOARD_CISCO_M20V1, "Cisco M20"}, "M20", "1.0"},
+	{{BCM47XX_BOARD_LINKSYS_E900V1, "Linksys E900 V1"}, "E900", "1.0"},
+	/* like WRT160N v3.0 */
+	{{BCM47XX_BOARD_LINKSYS_E1000V1, "Linksys E1000 V1"}, "E100", "1.0"},
+	{{BCM47XX_BOARD_LINKSYS_E1000V2, "Linksys E1000 V2"}, "E1000", "2.0"},
+	{{BCM47XX_BOARD_LINKSYS_E1000V21, "Linksys E1000 V2.1"}, "E1000", "2.1"},
+	{{BCM47XX_BOARD_LINKSYS_E1200V2, "Linksys E1200 V2"}, "E1200", "2.0"},
+	{{BCM47XX_BOARD_LINKSYS_E2000V1, "Linksys E2000 V1"}, "Linksys E2000", "1.0"},
+	/* like WRT610N v2.0 */
+	{{BCM47XX_BOARD_LINKSYS_E3000V1, "Linksys E3000 V1"}, "E300", "1.0"},
+	{{BCM47XX_BOARD_LINKSYS_E3200V1, "Linksys E3200 V1"}, "E3200", "1.0"},
+	{{BCM47XX_BOARD_LINKSYS_E4200V1, "Linksys E4200 V1"}, "E4200", "1.0"},
+	{{BCM47XX_BOARD_LINKSYS_WRT150NV11, "Linksys WRT150N V1.1"}, "WRT150N", "1.1"},
+	{{BCM47XX_BOARD_LINKSYS_WRT150NV1, "Linksys WRT150N V1"}, "WRT150N", "1"},
+	{{BCM47XX_BOARD_LINKSYS_WRT160NV1, "Linksys WRT160N V1"}, "WRT160N", "1.0"},
+	{{BCM47XX_BOARD_LINKSYS_WRT160NV3, "Linksys WRT160N V3"}, "WRT160N", "3.0"},
+	{{BCM47XX_BOARD_LINKSYS_WRT300NV11, "Linksys WRT300N V1.1"}, "WRT300N", "1.1"},
+	{{BCM47XX_BOARD_LINKSYS_WRT310NV1, "Linksys WRT310N V1"}, "WRT310N", "1.0"},
+	{{BCM47XX_BOARD_LINKSYS_WRT310NV2, "Linksys WRT310N V2"}, "WRT310N", "2.0"},
+	{{BCM47XX_BOARD_LINKSYS_WRT54G3GV2, "Linksys WRT54G3GV2-VF"}, "WRT54G3GV2-VF", "1.0"},
+	{{BCM47XX_BOARD_LINKSYS_WRT610NV1, "Linksys WRT610N V1"}, "WRT610N", "1.0"},
+	{{BCM47XX_BOARD_LINKSYS_WRT610NV2, "Linksys WRT610N V2"}, "WRT610N", "2.0"},
+	{ {0}, 0},
+};
+
+/* board_id */
+static const
+struct bcm47xx_board_type_list1 bcm47xx_board_list_board_id[] __initconst = {
+	{{BCM47XX_BOARD_NETGEAR_WGR614V8, "Netgear WGR614 V8"}, "U12H072T00_NETGEAR"},
+	{{BCM47XX_BOARD_NETGEAR_WGR614V9, "Netgear WGR614 V9"}, "U12H094T00_NETGEAR"},
+	{{BCM47XX_BOARD_NETGEAR_WNDR3300, "Netgear WNDR3300"}, "U12H093T00_NETGEAR"},
+	{{BCM47XX_BOARD_NETGEAR_WNDR3400V1, "Netgear WNDR3400 V1"}, "U12H155T00_NETGEAR"},
+	{{BCM47XX_BOARD_NETGEAR_WNDR3400V2, "Netgear WNDR3400 V2"}, "U12H187T00_NETGEAR"},
+	{{BCM47XX_BOARD_NETGEAR_WNDR3400VCNA, "Netgear WNDR3400 Vcna"}, "U12H155T01_NETGEAR"},
+	{{BCM47XX_BOARD_NETGEAR_WNDR3700V3, "Netgear WNDR3700 V3"}, "U12H194T00_NETGEAR"},
+	{{BCM47XX_BOARD_NETGEAR_WNDR4000, "Netgear WNDR4000"}, "U12H181T00_NETGEAR"},
+	{{BCM47XX_BOARD_NETGEAR_WNDR4500V1, "Netgear WNDR4500 V1"}, "U12H189T00_NETGEAR"},
+	{{BCM47XX_BOARD_NETGEAR_WNDR4500V2, "Netgear WNDR4500 V2"}, "U12H224T00_NETGEAR"},
+	{{BCM47XX_BOARD_NETGEAR_WNR2000, "Netgear WNR2000"}, "U12H114T00_NETGEAR"},
+	{{BCM47XX_BOARD_NETGEAR_WNR3500L, "Netgear WNR3500L"}, "U12H136T99_NETGEAR"},
+	{{BCM47XX_BOARD_NETGEAR_WNR3500U, "Netgear WNR3500U"}, "U12H136T00_NETGEAR"},
+	{{BCM47XX_BOARD_NETGEAR_WNR3500V2, "Netgear WNR3500 V2"}, "U12H127T00_NETGEAR"},
+	{{BCM47XX_BOARD_NETGEAR_WNR3500V2VC, "Netgear WNR3500 V2vc"}, "U12H127T70_NETGEAR"},
+	{{BCM47XX_BOARD_NETGEAR_WNR834BV2, "Netgear WNR834B V2"}, "U12H081T00_NETGEAR"},
+	{ {0}, 0},
+};
+
+/* boardtype, boardnum, boardrev */
+static const
+struct bcm47xx_board_type_list3 bcm47xx_board_list_board[] __initconst = {
+	{{BCM47XX_BOARD_HUAWEI_E970, "Huawei E970"}, "0x048e", "0x5347", "0x11"},
+	{{BCM47XX_BOARD_PHICOMM_M1, "Phicomm M1"}, "0x0590", "80", "0x1104"},
+	{{BCM47XX_BOARD_ZTE_H218N, "ZTE H218N"}, "0x053d", "1234", "0x1305"},
+	{ {0}, 0},
+};
+
+static const
+struct bcm47xx_board_type bcm47xx_board_unknown[] __initconst = {
+	{BCM47XX_BOARD_UNKNOWN, "Unknown Board"},
+};
+
+static struct bcm47xx_board_store bcm47xx_board = {BCM47XX_BOARD_NO, "Unknown Board"};
+
+static __init const struct bcm47xx_board_type *bcm47xx_board_get_nvram(void)
+{
+	char buf1[30];
+	char buf2[30];
+	char buf3[30];
+	const struct bcm47xx_board_type_list1 *e1;
+	const struct bcm47xx_board_type_list2 *e2;
+	const struct bcm47xx_board_type_list3 *e3;
+
+	if (bcm47xx_nvram_getenv("model_name", buf1, sizeof(buf1)) >= 0) {
+		for (e1 = bcm47xx_board_list_model_name; e1->value1; e1++) {
+			if (!strcmp(buf1, e1->value1))
+				return &e1->board;
+		}
+	}
+
+	if (bcm47xx_nvram_getenv("model_no", buf1, sizeof(buf1)) >= 0) {
+		for (e1 = bcm47xx_board_list_model_no; e1->value1; e1++) {
+			if (strstarts(buf1, e1->value1))
+				return &e1->board;
+		}
+	}
+
+	if (bcm47xx_nvram_getenv("machine_name", buf1, sizeof(buf1)) >= 0) {
+		for (e1 = bcm47xx_board_list_machine_name; e1->value1; e1++) {
+			if (strstarts(buf1, e1->value1))
+				return &e1->board;
+		}
+	}
+
+	if (bcm47xx_nvram_getenv("hardware_version", buf1, sizeof(buf1)) >= 0) {
+		for (e1 = bcm47xx_board_list_hardware_version; e1->value1; e1++) {
+			if (strstarts(buf1, e1->value1))
+				return &e1->board;
+		}
+	}
+
+	if (bcm47xx_nvram_getenv("productid", buf1, sizeof(buf1)) >= 0) {
+		for (e1 = bcm47xx_board_list_productid; e1->value1; e1++) {
+			if (!strcmp(buf1, e1->value1))
+				return &e1->board;
+		}
+	}
+
+	if (bcm47xx_nvram_getenv("ModelId", buf1, sizeof(buf1)) >= 0) {
+		for (e1 = bcm47xx_board_list_ModelId; e1->value1; e1++) {
+			if (!strcmp(buf1, e1->value1))
+				return &e1->board;
+		}
+	}
+
+	if (bcm47xx_nvram_getenv("melco_id", buf1, sizeof(buf1)) >= 0 ||
+	    bcm47xx_nvram_getenv("buf1falo_id", buf1, sizeof(buf1)) >= 0) {
+		/* buffalo hardware, check id for specific hardware matches */
+		for (e1 = bcm47xx_board_list_melco_id; e1->value1; e1++) {
+			if (!strcmp(buf1, e1->value1))
+				return &e1->board;
+		}
+	}
+
+	if (bcm47xx_nvram_getenv("boot_hw_model", buf1, sizeof(buf1)) >= 0 &&
+	    bcm47xx_nvram_getenv("boot_hw_ver", buf2, sizeof(buf2)) >= 0) {
+		for (e2 = bcm47xx_board_list_boot_hw; e2->value1; e2++) {
+			if (!strcmp(buf1, e2->value1) &&
+			    !strcmp(buf2, e2->value2))
+				return &e2->board;
+		}
+	}
+
+	if (bcm47xx_nvram_getenv("board_id", buf1, sizeof(buf1)) >= 0) {
+		for (e1 = bcm47xx_board_list_board_id; e1->value1; e1++) {
+			if (!strcmp(buf1, e1->value1))
+				return &e1->board;
+		}
+	}
+
+	if (bcm47xx_nvram_getenv("boardtype", buf1, sizeof(buf1)) >= 0 &&
+	    bcm47xx_nvram_getenv("boardnum", buf2, sizeof(buf2)) >= 0 &&
+	    bcm47xx_nvram_getenv("boardrev", buf3, sizeof(buf3)) >= 0) {
+		for (e3 = bcm47xx_board_list_board; e3->value1; e3++) {
+			if (!strcmp(buf1, e3->value1) &&
+			    !strcmp(buf2, e3->value2) &&
+			    !strcmp(buf3, e3->value3))
+				return &e3->board;
+		}
+	}
+	return bcm47xx_board_unknown;
+}
+
+void __init bcm47xx_board_detect(void)
+{
+	int err;
+	char buf[10];
+	const struct bcm47xx_board_type *board_detected;
+
+	if (bcm47xx_board.board != BCM47XX_BOARD_NO)
+		return;
+
+	/* check if the nvram is available */
+	err = bcm47xx_nvram_getenv("boardtype", buf, sizeof(buf));
+
+	/* init of nvram failed, probably too early now */
+	if (err == -ENXIO) {
+		return;
+	}
+
+	board_detected = bcm47xx_board_get_nvram();
+	bcm47xx_board.board = board_detected->board;
+	strlcpy(bcm47xx_board.name, board_detected->name,
+		BCM47XX_BOARD_MAX_NAME);
+}
+
+enum bcm47xx_board bcm47xx_board_get(void)
+{
+	return bcm47xx_board.board;
+}
+EXPORT_SYMBOL(bcm47xx_board_get);
+
+const char *bcm47xx_board_get_name(void)
+{
+	return bcm47xx_board.name;
+}
+EXPORT_SYMBOL(bcm47xx_board_get_name);
diff --git a/arch/mips/bcm47xx/setup.c b/arch/mips/bcm47xx/setup.c
index b2246cd9ca12..1f30571968e7 100644
--- a/arch/mips/bcm47xx/setup.c
+++ b/arch/mips/bcm47xx/setup.c
@@ -36,6 +36,7 @@
 #include <asm/time.h>
 #include <bcm47xx.h>
 #include <bcm47xx_nvram.h>
+#include <bcm47xx_board.h>
 
 union bcm47xx_bus bcm47xx_bus;
 EXPORT_SYMBOL(bcm47xx_bus);
@@ -221,6 +222,7 @@ void __init plat_mem_setup(void)
 	_machine_restart = bcm47xx_machine_restart;
 	_machine_halt = bcm47xx_machine_halt;
 	pm_power_off = bcm47xx_machine_halt;
+	bcm47xx_board_detect();
 }
 
 static int __init bcm47xx_register_bus_complete(void)
diff --git a/arch/mips/include/asm/mach-bcm47xx/bcm47xx_board.h b/arch/mips/include/asm/mach-bcm47xx/bcm47xx_board.h
new file mode 100644
index 000000000000..00867dd05a69
--- /dev/null
+++ b/arch/mips/include/asm/mach-bcm47xx/bcm47xx_board.h
@@ -0,0 +1,110 @@
+#ifndef __BCM47XX_BOARD_H
+#define __BCM47XX_BOARD_H
+
+enum bcm47xx_board {
+	BCM47XX_BOARD_ASUS_RTAC66U,
+	BCM47XX_BOARD_ASUS_RTN10,
+	BCM47XX_BOARD_ASUS_RTN10D,
+	BCM47XX_BOARD_ASUS_RTN10U,
+	BCM47XX_BOARD_ASUS_RTN12,
+	BCM47XX_BOARD_ASUS_RTN12B1,
+	BCM47XX_BOARD_ASUS_RTN12C1,
+	BCM47XX_BOARD_ASUS_RTN12D1,
+	BCM47XX_BOARD_ASUS_RTN12HP,
+	BCM47XX_BOARD_ASUS_RTN15U,
+	BCM47XX_BOARD_ASUS_RTN16,
+	BCM47XX_BOARD_ASUS_RTN53,
+	BCM47XX_BOARD_ASUS_RTN66U,
+	BCM47XX_BOARD_ASUS_WL300G,
+	BCM47XX_BOARD_ASUS_WL320GE,
+	BCM47XX_BOARD_ASUS_WL330GE,
+	BCM47XX_BOARD_ASUS_WL500GD,
+	BCM47XX_BOARD_ASUS_WL500GPV1,
+	BCM47XX_BOARD_ASUS_WL500GPV2,
+	BCM47XX_BOARD_ASUS_WL500W,
+	BCM47XX_BOARD_ASUS_WL520GC,
+	BCM47XX_BOARD_ASUS_WL520GU,
+	BCM47XX_BOARD_ASUS_WL700GE,
+	BCM47XX_BOARD_ASUS_WLHDD,
+
+	BCM47XX_BOARD_BELKIN_F7D4301,
+
+	BCM47XX_BOARD_BUFFALO_WBR2_G54,
+	BCM47XX_BOARD_BUFFALO_WHR2_A54G54,
+	BCM47XX_BOARD_BUFFALO_WHR_G125,
+	BCM47XX_BOARD_BUFFALO_WHR_G54S,
+	BCM47XX_BOARD_BUFFALO_WHR_HP_G54,
+	BCM47XX_BOARD_BUFFALO_WLA2_G54L,
+	BCM47XX_BOARD_BUFFALO_WZR_G300N,
+	BCM47XX_BOARD_BUFFALO_WZR_RS_G54,
+	BCM47XX_BOARD_BUFFALO_WZR_RS_G54HP,
+
+	BCM47XX_BOARD_CISCO_M10V1,
+	BCM47XX_BOARD_CISCO_M20V1,
+
+	BCM47XX_BOARD_DELL_TM2300,
+
+	BCM47XX_BOARD_DLINK_DIR130,
+	BCM47XX_BOARD_DLINK_DIR330,
+
+	BCM47XX_BOARD_HUAWEI_E970,
+
+	BCM47XX_BOARD_LINKSYS_E900V1,
+	BCM47XX_BOARD_LINKSYS_E1000V1,
+	BCM47XX_BOARD_LINKSYS_E1000V2,
+	BCM47XX_BOARD_LINKSYS_E1000V21,
+	BCM47XX_BOARD_LINKSYS_E1200V2,
+	BCM47XX_BOARD_LINKSYS_E2000V1,
+	BCM47XX_BOARD_LINKSYS_E3000V1,
+	BCM47XX_BOARD_LINKSYS_E3200V1,
+	BCM47XX_BOARD_LINKSYS_E4200V1,
+	BCM47XX_BOARD_LINKSYS_WRT150NV1,
+	BCM47XX_BOARD_LINKSYS_WRT150NV11,
+	BCM47XX_BOARD_LINKSYS_WRT160NV1,
+	BCM47XX_BOARD_LINKSYS_WRT160NV3,
+	BCM47XX_BOARD_LINKSYS_WRT300NV11,
+	BCM47XX_BOARD_LINKSYS_WRT310NV1,
+	BCM47XX_BOARD_LINKSYS_WRT310NV2,
+	BCM47XX_BOARD_LINKSYS_WRT54G3GV2,
+	BCM47XX_BOARD_LINKSYS_WRT610NV1,
+	BCM47XX_BOARD_LINKSYS_WRT610NV2,
+	BCM47XX_BOARD_LINKSYS_WRTSL54GS,
+
+	BCM47XX_BOARD_MOTOROLA_WE800G,
+	BCM47XX_BOARD_MOTOROLA_WR850GP,
+	BCM47XX_BOARD_MOTOROLA_WR850GV2V3,
+
+	BCM47XX_BOARD_NETGEAR_WGR614V8,
+	BCM47XX_BOARD_NETGEAR_WGR614V9,
+	BCM47XX_BOARD_NETGEAR_WNDR3300,
+	BCM47XX_BOARD_NETGEAR_WNDR3400V1,
+	BCM47XX_BOARD_NETGEAR_WNDR3400V2,
+	BCM47XX_BOARD_NETGEAR_WNDR3400VCNA,
+	BCM47XX_BOARD_NETGEAR_WNDR3700V3,
+	BCM47XX_BOARD_NETGEAR_WNDR4000,
+	BCM47XX_BOARD_NETGEAR_WNDR4500V1,
+	BCM47XX_BOARD_NETGEAR_WNDR4500V2,
+	BCM47XX_BOARD_NETGEAR_WNR2000,
+	BCM47XX_BOARD_NETGEAR_WNR3500L,
+	BCM47XX_BOARD_NETGEAR_WNR3500U,
+	BCM47XX_BOARD_NETGEAR_WNR3500V2,
+	BCM47XX_BOARD_NETGEAR_WNR3500V2VC,
+	BCM47XX_BOARD_NETGEAR_WNR834BV2,
+
+	BCM47XX_BOARD_PHICOMM_M1,
+
+	BCM47XX_BOARD_SIMPLETECH_SIMPLESHARE,
+
+	BCM47XX_BOARD_ZTE_H218N,
+
+	BCM47XX_BOARD_UNKNOWN,
+	BCM47XX_BOARD_NO,
+};
+
+#define BCM47XX_BOARD_MAX_NAME 30
+
+void bcm47xx_board_detect(void);
+enum bcm47xx_board bcm47xx_board_get(void);
+const char *bcm47xx_board_get_name(void);
+
+#endif /* __BCM47XX_BOARD_H */
-- 
cgit 


From 84e8bb5e9284b6833f303947a6966e87f406574a Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Wed, 18 Sep 2013 13:29:58 +0200
Subject: MIPS: BCM47XX: Print board name in /proc/cpuinfo

Do not print the constant system type "Broadcom BCM47XX" but print the
name of the actual SoC in use and the detected board.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5839/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/bcm47xx/prom.c | 27 ++++++++++++++++++++++++++-
 1 file changed, 26 insertions(+), 1 deletion(-)

diff --git a/arch/mips/bcm47xx/prom.c b/arch/mips/bcm47xx/prom.c
index 8c155afb1299..5cba318bc1cd 100644
--- a/arch/mips/bcm47xx/prom.c
+++ b/arch/mips/bcm47xx/prom.c
@@ -32,12 +32,37 @@
 #include <asm/bootinfo.h>
 #include <asm/fw/cfe/cfe_api.h>
 #include <asm/fw/cfe/cfe_error.h>
+#include <bcm47xx.h>
+#include <bcm47xx_board.h>
 
 static int cfe_cons_handle;
 
+static u16 get_chip_id(void)
+{
+	switch (bcm47xx_bus_type) {
+#ifdef CONFIG_BCM47XX_SSB
+	case BCM47XX_BUS_TYPE_SSB:
+		return bcm47xx_bus.ssb.chip_id;
+#endif
+#ifdef CONFIG_BCM47XX_BCMA
+	case BCM47XX_BUS_TYPE_BCMA:
+		return bcm47xx_bus.bcma.bus.chipinfo.id;
+#endif
+	}
+	return 0;
+}
+
 const char *get_system_type(void)
 {
-	return "Broadcom BCM47XX";
+	static char buf[50];
+	u16 chip_id = get_chip_id();
+
+	snprintf(buf, sizeof(buf),
+		 (chip_id > 0x9999) ? "Broadcom BCM%d (%s)" :
+				      "Broadcom BCM%04X (%s)",
+		 chip_id, bcm47xx_board_get_name());
+
+	return buf;
 }
 
 void prom_putchar(char c)
-- 
cgit 


From 62cf3bc0b59cfb70a021784af914c6ea464d3af7 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Wed, 18 Sep 2013 13:31:15 +0200
Subject: MIPS: BCM47XX: Get GPIO pin from nvram configuration

The nvram contains some gpio configuration for boards. It is stored in
a gpio<number>=name format e.g.
gpio8=wps_button
gpio4=robo_reset

This patches adds a function to parse these entries, so other driver
can use it.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5841/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/bcm47xx/nvram.c                          | 20 ++++++++++++++++++++
 arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h |  2 ++
 2 files changed, 22 insertions(+)

diff --git a/arch/mips/bcm47xx/nvram.c b/arch/mips/bcm47xx/nvram.c
index cc40b74940f5..b4c585b1c62e 100644
--- a/arch/mips/bcm47xx/nvram.c
+++ b/arch/mips/bcm47xx/nvram.c
@@ -190,3 +190,23 @@ int bcm47xx_nvram_getenv(char *name, char *val, size_t val_len)
 	return -ENOENT;
 }
 EXPORT_SYMBOL(bcm47xx_nvram_getenv);
+
+int bcm47xx_nvram_gpio_pin(const char *name)
+{
+	int i, err;
+	char nvram_var[10];
+	char buf[30];
+
+	for (i = 0; i < 16; i++) {
+		err = snprintf(nvram_var, sizeof(nvram_var), "gpio%i", i);
+		if (err <= 0)
+			continue;
+		err = bcm47xx_nvram_getenv(nvram_var, buf, sizeof(buf));
+		if (err <= 0)
+			continue;
+		if (!strcmp(name, buf))
+			return i;
+	}
+	return -ENOENT;
+}
+EXPORT_SYMBOL(bcm47xx_nvram_gpio_pin);
diff --git a/arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h b/arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h
index b8e7be8f34dd..36a3fc1aa3ae 100644
--- a/arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h
+++ b/arch/mips/include/asm/mach-bcm47xx/bcm47xx_nvram.h
@@ -48,4 +48,6 @@ static inline void bcm47xx_nvram_parse_macaddr(char *buf, u8 macaddr[6])
 		printk(KERN_WARNING "Can not parse mac address: %s\n", buf);
 }
 
+int bcm47xx_nvram_gpio_pin(const char *name);
+
 #endif /* __BCM47XX_NVRAM_H */
-- 
cgit 


From 2224de9d152b6fd9faa0df49cf55ca97eab772fa Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Wed, 18 Sep 2013 13:32:59 +0200
Subject: MIPS: BCM47XX: Fix clock detection for BCM5354 with 200MHz clock

Some BCM5354 SoCs are running at 200MHz, but it is not possible to read
the clock from a register like it is done on some other SoC in ssb and
bcma. These devices should have a clkfreq nvram configuration value set
to 200, read it and set the clock to the correct value.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5842/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/bcm47xx/time.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/mips/bcm47xx/time.c b/arch/mips/bcm47xx/time.c
index 536374dcba78..5e5d797fa90a 100644
--- a/arch/mips/bcm47xx/time.c
+++ b/arch/mips/bcm47xx/time.c
@@ -27,10 +27,14 @@
 #include <linux/ssb/ssb.h>
 #include <asm/time.h>
 #include <bcm47xx.h>
+#include <bcm47xx_nvram.h>
 
 void __init plat_time_init(void)
 {
 	unsigned long hz = 0;
+	u16 chip_id = 0;
+	char buf[10];
+	int len;
 
 	/*
 	 * Use deterministic values for initial counter interrupt
@@ -43,15 +47,23 @@ void __init plat_time_init(void)
 #ifdef CONFIG_BCM47XX_SSB
 	case BCM47XX_BUS_TYPE_SSB:
 		hz = ssb_cpu_clock(&bcm47xx_bus.ssb.mipscore) / 2;
+		chip_id = bcm47xx_bus.ssb.chip_id;
 		break;
 #endif
 #ifdef CONFIG_BCM47XX_BCMA
 	case BCM47XX_BUS_TYPE_BCMA:
 		hz = bcma_cpu_clock(&bcm47xx_bus.bcma.bus.drv_mips) / 2;
+		chip_id = bcm47xx_bus.bcma.bus.chipinfo.id;
 		break;
 #endif
 	}
 
+	if (chip_id == 0x5354) {
+		len = bcm47xx_nvram_getenv("clkfreq", buf, sizeof(buf));
+		if (len >= 0 && !strncmp(buf, "200", 4))
+			hz = 100000000;
+	}
+
 	if (!hz)
 		hz = 100000000;
 
-- 
cgit 


From 8eae19ccaeb5f519fc413c9646398a77dfbfa201 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Wed, 18 Sep 2013 13:33:00 +0200
Subject: MIPS: BCM47XX: Fix detected clock on Asus WL520GC and WL520GU

The Asus WL520GC and WL520GU are based on the BCM5354 and clocked at
200MHz, but they do not have a clkfreq nvram variable set to the
correct value. This adds a workaround for these devices.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5843/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/bcm47xx/time.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/mips/bcm47xx/time.c b/arch/mips/bcm47xx/time.c
index 5e5d797fa90a..2c85d9254b5e 100644
--- a/arch/mips/bcm47xx/time.c
+++ b/arch/mips/bcm47xx/time.c
@@ -28,6 +28,7 @@
 #include <asm/time.h>
 #include <bcm47xx.h>
 #include <bcm47xx_nvram.h>
+#include <bcm47xx_board.h>
 
 void __init plat_time_init(void)
 {
@@ -35,6 +36,7 @@ void __init plat_time_init(void)
 	u16 chip_id = 0;
 	char buf[10];
 	int len;
+	enum bcm47xx_board board = bcm47xx_board_get();
 
 	/*
 	 * Use deterministic values for initial counter interrupt
@@ -64,6 +66,15 @@ void __init plat_time_init(void)
 			hz = 100000000;
 	}
 
+	switch (board) {
+	case BCM47XX_BOARD_ASUS_WL520GC:
+	case BCM47XX_BOARD_ASUS_WL520GU:
+		hz = 100000000;
+		break;
+	default:
+		break;
+	}
+
 	if (!hz)
 		hz = 100000000;
 
-- 
cgit 


From cffe00c037cdaa14d420bb1dbc69b4dfb5f1bc23 Mon Sep 17 00:00:00 2001
From: Andrew Murray <amurray@embedded-bits.co.uk>
Date: Thu, 25 Jul 2013 17:14:25 +0100
Subject: MIPS: of/pci: Use of_pci_range_parser

This patch converts the pci_load_of_ranges function to use the new common
of_pci_range_parser.

Signed-off-by: Andrew Murray <amurray@embedded-bits.co.uk>
Signed-off-by: Andrew Murray <Andrew.Murray@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Reviewed-by: Rob Herring <rob.herring@calxeda.com>
Reviewed-by: Grant Likely <grant.likely@secretlab.ca>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-mips@linux-mips.org
Cc: jason@lakedaemon.net
Patchwork: https://patchwork.linux-mips.org/patch/5625/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/pci/pci.c | 50 ++++++++++++++++++--------------------------------
 1 file changed, 18 insertions(+), 32 deletions(-)

diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index 33e7aa52d9c4..1bf60b127377 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -120,51 +120,37 @@ static void pcibios_scanbus(struct pci_controller *hose)
 #ifdef CONFIG_OF
 void pci_load_of_ranges(struct pci_controller *hose, struct device_node *node)
 {
-	const __be32 *ranges;
-	int rlen;
-	int pna = of_n_addr_cells(node);
-	int np = pna + 5;
+	struct of_pci_range range;
+	struct of_pci_range_parser parser;
 
 	pr_info("PCI host bridge %s ranges:\n", node->full_name);
-	ranges = of_get_property(node, "ranges", &rlen);
-	if (ranges == NULL)
-		return;
 	hose->of_node = node;
 
-	while ((rlen -= np * 4) >= 0) {
-		u32 pci_space;
+	if (of_pci_range_parser_init(&parser, node))
+		return;
+
+	for_each_of_pci_range(&parser, &range) {
 		struct resource *res = NULL;
-		u64 addr, size;
-
-		pci_space = be32_to_cpup(&ranges[0]);
-		addr = of_translate_address(node, ranges + 3);
-		size = of_read_number(ranges + pna + 3, 2);
-		ranges += np;
-		switch ((pci_space >> 24) & 0x3) {
-		case 1:		/* PCI IO space */
+
+		switch (range.flags & IORESOURCE_TYPE_BITS) {
+		case IORESOURCE_IO:
 			pr_info("  IO 0x%016llx..0x%016llx\n",
-					addr, addr + size - 1);
+				range.cpu_addr,
+				range.cpu_addr + range.size - 1);
 			hose->io_map_base =
-				(unsigned long)ioremap(addr, size);
+				(unsigned long)ioremap(range.cpu_addr,
+						       range.size);
 			res = hose->io_resource;
-			res->flags = IORESOURCE_IO;
 			break;
-		case 2:		/* PCI Memory space */
-		case 3:		/* PCI 64 bits Memory space */
+		case IORESOURCE_MEM:
 			pr_info(" MEM 0x%016llx..0x%016llx\n",
-					addr, addr + size - 1);
+				range.cpu_addr,
+				range.cpu_addr + range.size - 1);
 			res = hose->mem_resource;
-			res->flags = IORESOURCE_MEM;
 			break;
 		}
-		if (res != NULL) {
-			res->start = addr;
-			res->name = node->full_name;
-			res->end = res->start + size - 1;
-			res->parent = NULL;
-			res->sibling = NULL;
-			res->child = NULL;
-		}
+		if (res != NULL)
+			of_pci_range_to_resource(&range, node, res);
 	}
 }
 
-- 
cgit 


From 761845f0f68cf6eba9cad0a58d977b89f8d4486f Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Wed, 18 Sep 2013 14:54:37 +0200
Subject: MIPS: Use NUMA_NO_NODE instead of -1 for node ID.

Original patch by Jianguo Wu <wujianguo@huawei.com>.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/module.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c
index 977a623d9253..2a52568dbcd6 100644
--- a/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c
@@ -23,6 +23,7 @@
 #include <linux/moduleloader.h>
 #include <linux/elf.h>
 #include <linux/mm.h>
+#include <linux/numa.h>
 #include <linux/vmalloc.h>
 #include <linux/slab.h>
 #include <linux/fs.h>
@@ -46,7 +47,7 @@ static DEFINE_SPINLOCK(dbe_lock);
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULE_START, MODULE_END,
-				GFP_KERNEL, PAGE_KERNEL, -1,
+				GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #endif
-- 
cgit 


From f7777dcc7550531ae551f544bdc391c65d0e1731 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Wed, 18 Sep 2013 16:05:26 +0200
Subject: MIPS: Panic messages should not end in \n.

Panic() is going to add a \n itself and it's annoying if a panic message rolls
of the screen on a device with no scrollback.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/alchemy/devboards/db1235.c | 2 +-
 arch/mips/cavium-octeon/setup.c      | 4 ++--
 arch/mips/kernel/irq_cpu.c           | 2 +-
 arch/mips/kernel/smp-bmips.c         | 4 ++--
 arch/mips/lantiq/irq.c               | 2 +-
 arch/mips/lantiq/xway/sysctrl.c      | 2 +-
 arch/mips/netlogic/common/smp.c      | 2 +-
 arch/mips/ralink/clk.c               | 2 +-
 arch/mips/ralink/mt7620.c            | 2 +-
 arch/mips/ralink/of.c                | 2 +-
 arch/mips/ralink/rt305x.c            | 2 +-
 11 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/arch/mips/alchemy/devboards/db1235.c b/arch/mips/alchemy/devboards/db1235.c
index c76a90f78664..bac19dc43d1d 100644
--- a/arch/mips/alchemy/devboards/db1235.c
+++ b/arch/mips/alchemy/devboards/db1235.c
@@ -59,7 +59,7 @@ void __init board_setup(void)
 		ret = -ENODEV;
 	}
 	if (ret)
-		panic("cannot initialize board support\n");
+		panic("cannot initialize board support");
 }
 
 int __init db1235_arch_init(void)
diff --git a/arch/mips/cavium-octeon/setup.c b/arch/mips/cavium-octeon/setup.c
index b212ae12e5ac..331b837cec57 100644
--- a/arch/mips/cavium-octeon/setup.c
+++ b/arch/mips/cavium-octeon/setup.c
@@ -999,7 +999,7 @@ void __init plat_mem_setup(void)
 
 	if (total == 0)
 		panic("Unable to allocate memory from "
-		      "cvmx_bootmem_phy_alloc\n");
+		      "cvmx_bootmem_phy_alloc");
 }
 
 /*
@@ -1081,7 +1081,7 @@ void __init device_tree_init(void)
 	/* Copy the default tree from init memory. */
 	initial_boot_params = early_init_dt_alloc_memory_arch(dt_size, 8);
 	if (initial_boot_params == NULL)
-		panic("Could not allocate initial_boot_params\n");
+		panic("Could not allocate initial_boot_params");
 	memcpy(initial_boot_params, fdt, dt_size);
 
 	if (do_prune) {
diff --git a/arch/mips/kernel/irq_cpu.c b/arch/mips/kernel/irq_cpu.c
index 72ef2d25cbf2..e498f2b3646a 100644
--- a/arch/mips/kernel/irq_cpu.c
+++ b/arch/mips/kernel/irq_cpu.c
@@ -150,7 +150,7 @@ int __init mips_cpu_intc_init(struct device_node *of_node,
 	domain = irq_domain_add_legacy(of_node, 8, MIPS_CPU_IRQ_BASE, 0,
 				       &mips_cpu_intc_irq_domain_ops, NULL);
 	if (!domain)
-		panic("Failed to add irqdomain for MIPS CPU\n");
+		panic("Failed to add irqdomain for MIPS CPU");
 
 	return 0;
 }
diff --git a/arch/mips/kernel/smp-bmips.c b/arch/mips/kernel/smp-bmips.c
index 126da74d4c55..2362665ba496 100644
--- a/arch/mips/kernel/smp-bmips.c
+++ b/arch/mips/kernel/smp-bmips.c
@@ -136,10 +136,10 @@ static void bmips_prepare_cpus(unsigned int max_cpus)
 {
 	if (request_irq(IPI0_IRQ, bmips_ipi_interrupt, IRQF_PERCPU,
 			"smp_ipi0", NULL))
-		panic("Can't request IPI0 interrupt\n");
+		panic("Can't request IPI0 interrupt");
 	if (request_irq(IPI1_IRQ, bmips_ipi_interrupt, IRQF_PERCPU,
 			"smp_ipi1", NULL))
-		panic("Can't request IPI1 interrupt\n");
+		panic("Can't request IPI1 interrupt");
 }
 
 /*
diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c
index eb3e18659630..85685e1cdb89 100644
--- a/arch/mips/lantiq/irq.c
+++ b/arch/mips/lantiq/irq.c
@@ -390,7 +390,7 @@ int __init icu_of_init(struct device_node *node, struct device_node *parent)
 		ret = of_irq_to_resource_table(eiu_node,
 						ltq_eiu_irq, exin_avail);
 		if (ret != exin_avail)
-			panic("failed to load external irq resources\n");
+			panic("failed to load external irq resources");
 
 		if (request_mem_region(res.start, resource_size(&res),
 							res.name) < 0)
diff --git a/arch/mips/lantiq/xway/sysctrl.c b/arch/mips/lantiq/xway/sysctrl.c
index c24924fe087d..51804b10a036 100644
--- a/arch/mips/lantiq/xway/sysctrl.c
+++ b/arch/mips/lantiq/xway/sysctrl.c
@@ -128,7 +128,7 @@ static int pmu_enable(struct clk *clk)
 	do {} while (--retry && (pmu_r32(PWDSR(clk->module)) & clk->bits));
 
 	if (!retry)
-		panic("activating PMU module failed!\n");
+		panic("activating PMU module failed!");
 
 	return 0;
 }
diff --git a/arch/mips/netlogic/common/smp.c b/arch/mips/netlogic/common/smp.c
index 6f8feb9efcff..c0eded01fde9 100644
--- a/arch/mips/netlogic/common/smp.c
+++ b/arch/mips/netlogic/common/smp.c
@@ -245,7 +245,7 @@ static int nlm_parse_cpumask(cpumask_t *wakeup_mask)
 	return threadmode;
 
 unsupp:
-	panic("Unsupported CPU mask %lx\n",
+	panic("Unsupported CPU mask %lx",
 		(unsigned long)cpumask_bits(wakeup_mask)[0]);
 	return 0;
 }
diff --git a/arch/mips/ralink/clk.c b/arch/mips/ralink/clk.c
index bba0cdfd83bc..5d0983d47161 100644
--- a/arch/mips/ralink/clk.c
+++ b/arch/mips/ralink/clk.c
@@ -26,7 +26,7 @@ void ralink_clk_add(const char *dev, unsigned long rate)
 	struct clk *clk = kzalloc(sizeof(struct clk), GFP_KERNEL);
 
 	if (!clk)
-		panic("failed to add clock\n");
+		panic("failed to add clock");
 
 	clk->cl.dev_id = dev;
 	clk->cl.clk = clk;
diff --git a/arch/mips/ralink/mt7620.c b/arch/mips/ralink/mt7620.c
index d217509e5300..a3ad56c2372d 100644
--- a/arch/mips/ralink/mt7620.c
+++ b/arch/mips/ralink/mt7620.c
@@ -350,7 +350,7 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
 		name = "MT7620A";
 		soc_info->compatible = "ralink,mt7620a-soc";
 	} else {
-		panic("mt7620: unknown SoC, n0:%08x n1:%08x\n", n0, n1);
+		panic("mt7620: unknown SoC, n0:%08x n1:%08x", n0, n1);
 	}
 
 	rev = __raw_readl(sysc + SYSC_REG_CHIP_REV);
diff --git a/arch/mips/ralink/of.c b/arch/mips/ralink/of.c
index ce38d11f9da5..15f21ea96121 100644
--- a/arch/mips/ralink/of.c
+++ b/arch/mips/ralink/of.c
@@ -108,7 +108,7 @@ static int __init plat_of_setup(void)
 	strncpy(of_ids[1].compatible, "palmbus", len);
 
 	if (of_platform_populate(NULL, of_ids, NULL, NULL))
-		panic("failed to populate DT\n");
+		panic("failed to populate DT");
 
 	/* make sure ithat the reset controller is setup early */
 	ralink_rst_init();
diff --git a/arch/mips/ralink/rt305x.c b/arch/mips/ralink/rt305x.c
index ca7ee3a33790..bb82a82da9e7 100644
--- a/arch/mips/ralink/rt305x.c
+++ b/arch/mips/ralink/rt305x.c
@@ -276,7 +276,7 @@ void prom_soc_init(struct ralink_soc_info *soc_info)
 		name = "RT5350";
 		soc_info->compatible = "ralink,rt5350-soc";
 	} else {
-		panic("rt305x: unknown SoC, n0:%08x n1:%08x\n", n0, n1);
+		panic("rt305x: unknown SoC, n0:%08x n1:%08x", n0, n1);
 	}
 
 	id = __raw_readl(sysc + SYSC_REG_CHIP_ID);
-- 
cgit 


From 007fbbea9fc0ab667b0e873e8985698a3701b4e8 Mon Sep 17 00:00:00 2001
From: Wu Zhangjin <wuzhangjin@gmail.com>
Date: Wed, 10 Nov 2010 00:26:34 +0800
Subject: MIPS: Quiet the building output of vmlinux.32 and vmlinux.64

Based on quiet_cmd_X and cmd_X, this patch quiets the building output of
vmlinux.32 and vmlinux.64.

Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Sam Ravnborg <sam@ravnborg.org>
Patchwork: https://patchwork.linux-mips.org/patch/1766/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Makefile | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index ca8f8340d75f..f9a0c30976a5 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -285,15 +285,19 @@ endif
 # Other need ECOFF, so we build a 32-bit ELF binary for them which we then
 # convert to ECOFF using elf2ecoff.
 #
+quiet_cmd_32 = OBJCOPY $@
+	cmd_32 = $(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
 vmlinux.32: vmlinux
-	$(OBJCOPY) -O $(32bit-bfd) $(OBJCOPYFLAGS) $< $@
+	$(call cmd,32)
 
 #
 # The 64-bit ELF tools are pretty broken so at this time we generate 64-bit
 # ELF files from 32-bit files by conversion.
 #
+quiet_cmd_64 = OBJCOPY $@
+	cmd_64 = $(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@
 vmlinux.64: vmlinux
-	$(OBJCOPY) -O $(64bit-bfd) $(OBJCOPYFLAGS) $< $@
+	$(call cmd,64)
 
 all:	$(all-y)
 
-- 
cgit 


From f9a7febd82f413b9c8bafd40145bc398b7eb619f Mon Sep 17 00:00:00 2001
From: Greg Ungerer <gerg@snapgear.com>
Date: Wed, 8 Sep 2010 15:50:43 +1000
Subject: MIPS: Fix start of free memory when using initrd

Currently when using an initrd on a MIPS system the start of the bootmem
region of memory is set to the larger of the end of the kernel bss region
(_end) or the end of the initrd. In a typical memory layout where the
initrd is at some address above the kernel image this means that the start
of the bootmem region will be the end of the initrd. But when we are done
processing/loading the initrd we have no way to reclaim the memory region
it occupied, and we lose a large chunk of now otherwise empty RAM from our
final running system.

The bootmem code is designed to allow this initrd to be reserved (and the
code in finalize_initrd() currently does this). When the initrd is finally
processed/loaded its reserved memory is freed.

Fix the setting of the start of the bootmem map to be the end of the kernel.

[ralf@linux-mips.org: fold in the fix of Ashok Kumar <ashoks@broadcom.com>.]

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/1574/
Cc: Ashok Kumar <ashoks@broadcom.com>
Patchwork: https://patchwork.linux-mips.org/patch/5883/
Patchwork: https://patchwork.linux-mips.org/patch/6028/
Patchwork: https://patchwork.linux-mips.org/patch/6064/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/setup.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index c538d6e01b7b..a842154d57dc 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -300,12 +300,13 @@ static void __init bootmem_init(void)
 	int i;
 
 	/*
-	 * Init any data related to initrd. It's a nop if INITRD is
-	 * not selected. Once that done we can determine the low bound
-	 * of usable memory.
+	 * Sanity check any INITRD first. We don't take it into account
+	 * for bootmem setup initially, rely on the end-of-kernel-code
+	 * as our memory range starting point. Once bootmem is inited we
+	 * will reserve the area used for the initrd.
 	 */
-	reserved_end = max(init_initrd(),
-			   (unsigned long) PFN_UP(__pa_symbol(&_end)));
+	init_initrd();
+	reserved_end = (unsigned long) PFN_UP(__pa_symbol(&_end));
 
 	/*
 	 * max_low_pfn is not a number of pages. The number of pages
@@ -362,6 +363,14 @@ static void __init bootmem_init(void)
 		max_low_pfn = PFN_DOWN(HIGHMEM_START);
 	}
 
+#ifdef CONFIG_BLK_DEV_INITRD
+	/*
+	 * mapstart should be after initrd_end
+	 */
+	if (initrd_end)
+		mapstart = max(mapstart, (unsigned long)PFN_UP(__pa(initrd_end)));
+#endif
+
 	/*
 	 * Initialize the boot-time allocator with low memory only.
 	 */
-- 
cgit 


From 26fca83a22f66e2ea0339e6b1ee1bdc628c1508b Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 11 Sep 2013 11:34:48 +0100
Subject: MIPS: Kbuild: Do not allow building vmlinuz when !ZBOOT

When CONFIG_SYS_SUPPORTS_ZBOOT is not enabled, we will still try to
build the decompressor code in arch/mips/boot/compressed as a
dependency for producing the vmlinuz target and this will result in
the following build failure:

  OBJCOPY arch/mips/boot/compressed/vmlinux.bin
arch/mips/boot/compressed/decompress.c: In function 'decompress_kernel':
arch/mips/boot/compressed/decompress.c:105:2: error: implicit
declaration of function 'decompress'
make[1]: *** [arch/mips/boot/compressed/decompress.o] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [vmlinuz] Error 2

This is a genuine build failure because we have no implementation for
the decompress() function body since no kernel compression method
defined in CONFIG_KERNEL_(GZIP,BZIP2...) has been enabled.

arch/mips/Makefile already guards the install target for the "vmlinuz"
binary with a proper ifdef CONFIG_SYS_SUPPORTS_ZBOOT, we now also do the
same if we attempt to do a "make vmlinuz" and show that
CONFIG_SYS_SUPPORTS_ZBOOT is not enabled.

[ralf@linux-mips.org: Cleanup the makefile rule as suggested by James
Hogan.]

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: blogic@openwrt.org
Cc: richard@nod.at
Patchwork: https://patchwork.linux-mips.org/patch/5817/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Makefile | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index f9a0c30976a5..de300b993607 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -306,10 +306,16 @@ $(boot-y): $(vmlinux-32) FORCE
 	$(Q)$(MAKE) $(build)=arch/mips/boot VMLINUX=$(vmlinux-32) \
 		$(bootvars-y) arch/mips/boot/$@
 
+ifdef CONFIG_SYS_SUPPORTS_ZBOOT
 # boot/compressed
 $(bootz-y): $(vmlinux-32) FORCE
 	$(Q)$(MAKE) $(build)=arch/mips/boot/compressed \
 		$(bootvars-y) 32bit-bfd=$(32bit-bfd) $@
+else
+vmlinuz: FORCE
+	@echo '   CONFIG_SYS_SUPPORTS_ZBOOT is not enabled'
+	/bin/false
+endif
 
 
 CLEAN_FILES += vmlinux.32 vmlinux.64
-- 
cgit 


From 4e23eb631c84090d2122a0f8c4a331b8e0ba0d99 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Wed, 11 Sep 2013 11:51:41 +0100
Subject: MIPS: ZBOOT: Support XZ compression scheme

Add support for the XZ compression scheme in the ZBOOT decompression
stub, in order to support it we need to:

- select the "xzkern" compression tool to compress the vmlinux.bin
  payload
- link with ashldi3.o for xz_dec_run() to work
- memcpy() is also required for decompress_unxz.c so we share the
  implementation between GZIP and XZ

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: blogic@openwrt.org
Cc: james.hogan@imgtec.com
Patchwork: https://patchwork.linux-mips.org/patch/5818/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig                      | 1 +
 arch/mips/boot/compressed/Makefile     | 5 +++++
 arch/mips/boot/compressed/decompress.c | 8 +++++++-
 3 files changed, 13 insertions(+), 1 deletion(-)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index c35603bb6ace..a749defb1582 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1491,6 +1491,7 @@ config SYS_SUPPORTS_ZBOOT
 	select HAVE_KERNEL_BZIP2
 	select HAVE_KERNEL_LZMA
 	select HAVE_KERNEL_LZO
+	select HAVE_KERNEL_XZ
 
 config SYS_SUPPORTS_ZBOOT_UART16550
 	bool
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
index 0048c0897896..c1f8f0753cc8 100644
--- a/arch/mips/boot/compressed/Makefile
+++ b/arch/mips/boot/compressed/Makefile
@@ -37,6 +37,10 @@ vmlinuzobjs-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o
 vmlinuzobjs-$(CONFIG_MIPS_ALCHEMY)		   += $(obj)/uart-alchemy.o
 endif
 
+ifdef CONFIG_KERNEL_XZ
+vmlinuzobjs-y += $(obj)/../../lib/ashldi3.o
+endif
+
 targets += vmlinux.bin
 OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S
 $(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE
@@ -46,6 +50,7 @@ tool_$(CONFIG_KERNEL_GZIP)    = gzip
 tool_$(CONFIG_KERNEL_BZIP2)   = bzip2
 tool_$(CONFIG_KERNEL_LZMA)    = lzma
 tool_$(CONFIG_KERNEL_LZO)     = lzo
+tool_$(CONFIG_KERNEL_XZ)      = xzkern
 
 targets += vmlinux.bin.z
 $(obj)/vmlinux.bin.z: $(obj)/vmlinux.bin FORCE
diff --git a/arch/mips/boot/compressed/decompress.c b/arch/mips/boot/compressed/decompress.c
index 2c9573098c0d..cff7b7d1ff45 100644
--- a/arch/mips/boot/compressed/decompress.c
+++ b/arch/mips/boot/compressed/decompress.c
@@ -43,7 +43,7 @@ void error(char *x)
 /* activate the code for pre-boot environment */
 #define STATIC static
 
-#ifdef CONFIG_KERNEL_GZIP
+#if defined(CONFIG_KERNEL_GZIP) || defined(CONFIG_KERNEL_XZ)
 void *memcpy(void *dest, const void *src, size_t n)
 {
 	int i;
@@ -54,6 +54,8 @@ void *memcpy(void *dest, const void *src, size_t n)
 		d[i] = s[i];
 	return dest;
 }
+#endif
+#ifdef CONFIG_KERNEL_GZIP
 #include "../../../../lib/decompress_inflate.c"
 #endif
 
@@ -78,6 +80,10 @@ void *memset(void *s, int c, size_t n)
 #include "../../../../lib/decompress_unlzo.c"
 #endif
 
+#ifdef CONFIG_KERNEL_XZ
+#include "../../../../lib/decompress_unxz.c"
+#endif
+
 void decompress_kernel(unsigned long boot_heap_start)
 {
 	unsigned long zimage_start, zimage_size;
-- 
cgit 


From e970a72ec1e5d6aa3c03da7970450bc37777ba52 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Thu, 12 Sep 2013 15:42:05 +0100
Subject: MIPS: ZBOOT: Define program header for text loadable segment

There is currently no corresponding ELF program header for the "text"
loadable segment which is confusing for some bootloader out there such
as CFE because it expects to find a program header matching the segment
it is trying to load. The Linux kernel ELF binary "vmlinux" has a
similar program header for the text segment so we just mimic this here
too.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: blogic@openwrt.org
Cc: james.hogan@imgtec.com
Patchwork: https://patchwork.linux-mips.org/patch/5827/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/boot/compressed/ld.script | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/mips/boot/compressed/ld.script b/arch/mips/boot/compressed/ld.script
index 8e6b07ca2f5e..5a33409c7f63 100644
--- a/arch/mips/boot/compressed/ld.script
+++ b/arch/mips/boot/compressed/ld.script
@@ -8,6 +8,9 @@
 
 OUTPUT_ARCH(mips)
 ENTRY(start)
+PHDRS {
+	text PT_LOAD FLAGS(7); /* RWX */
+}
 SECTIONS
 {
 	/* Text and read-only data */
@@ -15,7 +18,7 @@ SECTIONS
 	.text : {
 		*(.text)
 		*(.rodata)
-	}
+	}: text
 	/* End of text section */
 
 	/* Writable data */
-- 
cgit 


From 31c4867d6c75450f98398a1172f03383c4881c98 Mon Sep 17 00:00:00 2001
From: Florian Fainelli <f.fainelli@gmail.com>
Date: Mon, 16 Sep 2013 16:55:20 +0100
Subject: MIPS: ZBOOT: Support LZ4 compression scheme

Add support for the LZ4 compression scheme in the ZBOOT decompression
stub, in order to support it we need to:

- select the "lz4" compression tool to compress the vmlinux.bin
  payload
- memcpy() is also required for decompress_unlz4.c so we share the
  implementation between GZIP, XZ and now LZ4

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: blogic@openwrt.org
Cc: james.hogan@imgtec.com
Patchwork: https://patchwork.linux-mips.org/patch/5829/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig                      | 1 +
 arch/mips/boot/compressed/Makefile     | 1 +
 arch/mips/boot/compressed/decompress.c | 7 ++++++-
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index a749defb1582..0cff92315ac4 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1489,6 +1489,7 @@ config SYS_SUPPORTS_ZBOOT
 	bool
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_BZIP2
+	select HAVE_KERNEL_LZ4
 	select HAVE_KERNEL_LZMA
 	select HAVE_KERNEL_LZO
 	select HAVE_KERNEL_XZ
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
index c1f8f0753cc8..ca0c343c9ea5 100644
--- a/arch/mips/boot/compressed/Makefile
+++ b/arch/mips/boot/compressed/Makefile
@@ -48,6 +48,7 @@ $(obj)/vmlinux.bin: $(KBUILD_IMAGE) FORCE
 
 tool_$(CONFIG_KERNEL_GZIP)    = gzip
 tool_$(CONFIG_KERNEL_BZIP2)   = bzip2
+tool_$(CONFIG_KERNEL_LZ4)     = lz4
 tool_$(CONFIG_KERNEL_LZMA)    = lzma
 tool_$(CONFIG_KERNEL_LZO)     = lzo
 tool_$(CONFIG_KERNEL_XZ)      = xzkern
diff --git a/arch/mips/boot/compressed/decompress.c b/arch/mips/boot/compressed/decompress.c
index cff7b7d1ff45..a8c6fd6a4406 100644
--- a/arch/mips/boot/compressed/decompress.c
+++ b/arch/mips/boot/compressed/decompress.c
@@ -43,7 +43,8 @@ void error(char *x)
 /* activate the code for pre-boot environment */
 #define STATIC static
 
-#if defined(CONFIG_KERNEL_GZIP) || defined(CONFIG_KERNEL_XZ)
+#if defined(CONFIG_KERNEL_GZIP) || defined(CONFIG_KERNEL_XZ) || \
+	defined(CONFIG_KERNEL_LZ4)
 void *memcpy(void *dest, const void *src, size_t n)
 {
 	int i;
@@ -72,6 +73,10 @@ void *memset(void *s, int c, size_t n)
 #include "../../../../lib/decompress_bunzip2.c"
 #endif
 
+#ifdef CONFIG_KERNEL_LZ4
+#include "../../../../lib/decompress_unlz4.c"
+#endif
+
 #ifdef CONFIG_KERNEL_LZMA
 #include "../../../../lib/decompress_unlzma.c"
 #endif
-- 
cgit 


From 7cd93b893567906d9c9e9e1121667600b4cebbaf Mon Sep 17 00:00:00 2001
From: Yoichi Yuasa <yuasa@linux-mips.org>
Date: Mon, 8 Feb 2010 20:59:39 +0900
Subject: MIPS: Add 8250/16550 serial early printk driver

Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/947/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig.debug              |  8 +++++
 arch/mips/include/asm/setup.h        |  8 +++++
 arch/mips/kernel/Makefile            |  1 +
 arch/mips/kernel/early_printk_8250.c | 66 ++++++++++++++++++++++++++++++++++++
 4 files changed, 83 insertions(+)
 create mode 100644 arch/mips/kernel/early_printk_8250.c

diff --git a/arch/mips/Kconfig.debug b/arch/mips/Kconfig.debug
index 37871f0de15e..b147e7038ff0 100644
--- a/arch/mips/Kconfig.debug
+++ b/arch/mips/Kconfig.debug
@@ -20,6 +20,14 @@ config EARLY_PRINTK
 	  doesn't cooperate with an X server. You should normally say N here,
 	  unless you want to debug such a crash.
 
+config EARLY_PRINTK_8250
+	bool "8250/16550 and compatible serial early printk driver"
+	depends on EARLY_PRINTK
+	default n
+	help
+	  If you say Y here, it will be possible to use a 8250/16550 serial
+	  port as the boot console.
+
 config CMDLINE_BOOL
 	bool "Built-in kernel command line"
 	default n
diff --git a/arch/mips/include/asm/setup.h b/arch/mips/include/asm/setup.h
index e26589ef36ee..d7bfdeba9e84 100644
--- a/arch/mips/include/asm/setup.h
+++ b/arch/mips/include/asm/setup.h
@@ -5,6 +5,14 @@
 
 extern void setup_early_printk(void);
 
+#ifdef CONFIG_EARLY_PRINTK_8250
+extern void setup_8250_early_printk_port(unsigned long base,
+	unsigned int reg_shift, unsigned int timeout);
+#else
+static inline void setup_8250_early_printk_port(unsigned long base,
+	unsigned int reg_shift, unsigned int timeout) {}
+#endif
+
 extern void set_handler(unsigned long offset, void *addr, unsigned long len);
 extern void set_uncached_handler(unsigned long offset, void *addr, unsigned long len);
 
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index 423d871a946b..4bbece9b3eb4 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -84,6 +84,7 @@ obj-$(CONFIG_GPIO_TXX9)		+= gpio_txx9.o
 obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel.o crash.o
 obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
 obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
+obj-$(CONFIG_EARLY_PRINTK_8250)	+= early_printk_8250.o
 obj-$(CONFIG_SPINLOCK_TEST)	+= spinlock_test.o
 obj-$(CONFIG_MIPS_MACHINE)	+= mips_machine.o
 
diff --git a/arch/mips/kernel/early_printk_8250.c b/arch/mips/kernel/early_printk_8250.c
new file mode 100644
index 000000000000..83cea3767556
--- /dev/null
+++ b/arch/mips/kernel/early_printk_8250.c
@@ -0,0 +1,66 @@
+/*
+ *  8250/16550-type serial ports prom_putchar()
+ *
+ *  Copyright (C) 2010  Yoichi Yuasa <yuasa@linux-mips.org>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include <linux/io.h>
+#include <linux/serial_core.h>
+#include <linux/serial_reg.h>
+
+static void __iomem *serial8250_base;
+static unsigned int serial8250_reg_shift;
+static unsigned int serial8250_tx_timeout;
+
+void setup_8250_early_printk_port(unsigned long base, unsigned int reg_shift,
+				  unsigned int timeout)
+{
+	serial8250_base = (void __iomem *)base;
+	serial8250_reg_shift = reg_shift;
+	serial8250_tx_timeout = timeout;
+}
+
+static inline u8 serial_in(int offset)
+{
+	return readb(serial8250_base + (offset << serial8250_reg_shift));
+}
+
+static inline void serial_out(int offset, char value)
+{
+	writeb(value, serial8250_base + (offset << serial8250_reg_shift));
+}
+
+void prom_putchar(char c)
+{
+	unsigned int timeout;
+	int status, bits;
+
+	if (!serial8250_base)
+		return;
+
+	timeout = serial8250_tx_timeout;
+	bits = UART_LSR_TEMT | UART_LSR_THRE;
+
+	do {
+		status = serial_in(UART_LSR);
+
+		if (--timeout == 0)
+			break;
+	} while ((status & bits) != bits);
+
+	if (timeout)
+		serial_out(UART_TX, c);
+}
-- 
cgit 


From 8a8594a738e2e6abcfb9370629ed95035505668f Mon Sep 17 00:00:00 2001
From: Yoichi Yuasa <yuasa@linux-mips.org>
Date: Mon, 8 Feb 2010 21:01:22 +0900
Subject: MIPS: Cobalt: Move to 8250/16550 serial early printk driver

Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: linux-mips <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/948/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig          |  1 +
 arch/mips/cobalt/Makefile  |  1 -
 arch/mips/cobalt/console.c | 20 --------------------
 arch/mips/cobalt/setup.c   |  3 +++
 4 files changed, 4 insertions(+), 21 deletions(-)
 delete mode 100644 arch/mips/cobalt/console.c

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 0cff92315ac4..e70cf31c6ba3 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -146,6 +146,7 @@ config MIPS_COBALT
 	select CSRC_R4K
 	select CEVT_GT641XX
 	select DMA_NONCOHERENT
+	select EARLY_PRINTK_8250 if EARLY_PRINTK
 	select HW_HAS_PCI
 	select I8253
 	select I8259
diff --git a/arch/mips/cobalt/Makefile b/arch/mips/cobalt/Makefile
index 61a334ac43ac..558e94977942 100644
--- a/arch/mips/cobalt/Makefile
+++ b/arch/mips/cobalt/Makefile
@@ -5,5 +5,4 @@
 obj-y := buttons.o irq.o lcd.o led.o reset.o rtc.o serial.o setup.o time.o
 
 obj-$(CONFIG_PCI)		+= pci.o
-obj-$(CONFIG_EARLY_PRINTK)	+= console.o
 obj-$(CONFIG_MTD_PHYSMAP)	+= mtd.o
diff --git a/arch/mips/cobalt/console.c b/arch/mips/cobalt/console.c
deleted file mode 100644
index d1ba701c9dd1..000000000000
--- a/arch/mips/cobalt/console.c
+++ /dev/null
@@ -1,20 +0,0 @@
-/*
- * (C) P. Horton 2006
- */
-#include <linux/io.h>
-#include <linux/serial_reg.h>
-
-#include <cobalt.h>
-
-#define UART_BASE	((void __iomem *)CKSEG1ADDR(0x1c800000))
-
-void prom_putchar(char c)
-{
-	if (cobalt_board_id <= COBALT_BRD_ID_QUBE1)
-		return;
-
-	while (!(readb(UART_BASE + UART_LSR) & UART_LSR_THRE))
-		;
-
-	writeb(c, UART_BASE + UART_TX);
-}
diff --git a/arch/mips/cobalt/setup.c b/arch/mips/cobalt/setup.c
index ec3b2c417f7c..9a8c2fe8d334 100644
--- a/arch/mips/cobalt/setup.c
+++ b/arch/mips/cobalt/setup.c
@@ -17,6 +17,7 @@
 
 #include <asm/bootinfo.h>
 #include <asm/reboot.h>
+#include <asm/setup.h>
 #include <asm/gt64120.h>
 
 #include <cobalt.h>
@@ -112,6 +113,8 @@ void __init prom_init(void)
 	}
 
 	add_memory_region(0x0, memsz, BOOT_MEM_RAM);
+
+	setup_8250_early_printk_port(CKSEG1ADDR(0x1c800000), 0, 0);
 }
 
 void __init prom_free_prom_memory(void)
-- 
cgit 


From 4e7f72660c39a81cc5745d5c6f23f9500f80d8d8 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Thu, 15 Aug 2013 11:28:30 +0200
Subject: MIPS: Remove unnecessary platform dma helper functions

The semantics stay the same - on Cavium Octeon the functions were dead
code (it overrides the MIPS DMA ops) - on other platforms they contained
no code at all.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5720/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h | 12 ------------
 arch/mips/include/asm/mach-generic/dma-coherence.h       | 10 ----------
 arch/mips/include/asm/mach-ip27/dma-coherence.h          | 10 ----------
 arch/mips/include/asm/mach-ip32/dma-coherence.h          | 11 -----------
 arch/mips/include/asm/mach-jazz/dma-coherence.h          | 10 ----------
 arch/mips/include/asm/mach-loongson/dma-coherence.h      | 10 ----------
 arch/mips/include/asm/mach-powertv/dma-coherence.h       | 10 ----------
 arch/mips/mm/dma-default.c                               |  4 +---
 8 files changed, 1 insertion(+), 76 deletions(-)

diff --git a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
index 47fb247f9663..f9f448650505 100644
--- a/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
+++ b/arch/mips/include/asm/mach-cavium-octeon/dma-coherence.h
@@ -52,23 +52,11 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
 	return 0;
 }
 
-static inline void plat_extra_sync_for_device(struct device *dev)
-{
-	BUG();
-}
-
 static inline int plat_device_is_coherent(struct device *dev)
 {
 	return 1;
 }
 
-static inline int plat_dma_mapping_error(struct device *dev,
-					 dma_addr_t dma_addr)
-{
-	BUG();
-	return 0;
-}
-
 dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr);
 phys_addr_t dma_to_phys(struct device *dev, dma_addr_t daddr);
 
diff --git a/arch/mips/include/asm/mach-generic/dma-coherence.h b/arch/mips/include/asm/mach-generic/dma-coherence.h
index 74cb99257d5b..a9e8f6b62b0b 100644
--- a/arch/mips/include/asm/mach-generic/dma-coherence.h
+++ b/arch/mips/include/asm/mach-generic/dma-coherence.h
@@ -47,16 +47,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
 	return 1;
 }
 
-static inline void plat_extra_sync_for_device(struct device *dev)
-{
-}
-
-static inline int plat_dma_mapping_error(struct device *dev,
-					 dma_addr_t dma_addr)
-{
-	return 0;
-}
-
 static inline int plat_device_is_coherent(struct device *dev)
 {
 #ifdef CONFIG_DMA_COHERENT
diff --git a/arch/mips/include/asm/mach-ip27/dma-coherence.h b/arch/mips/include/asm/mach-ip27/dma-coherence.h
index 06c441968e6e..4ffddfdb5062 100644
--- a/arch/mips/include/asm/mach-ip27/dma-coherence.h
+++ b/arch/mips/include/asm/mach-ip27/dma-coherence.h
@@ -58,16 +58,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
 	return 1;
 }
 
-static inline void plat_extra_sync_for_device(struct device *dev)
-{
-}
-
-static inline int plat_dma_mapping_error(struct device *dev,
-					 dma_addr_t dma_addr)
-{
-	return 0;
-}
-
 static inline int plat_device_is_coherent(struct device *dev)
 {
 	return 1;		/* IP27 non-cohernet mode is unsupported */
diff --git a/arch/mips/include/asm/mach-ip32/dma-coherence.h b/arch/mips/include/asm/mach-ip32/dma-coherence.h
index 073f0c4760ba..104cfbc3ed63 100644
--- a/arch/mips/include/asm/mach-ip32/dma-coherence.h
+++ b/arch/mips/include/asm/mach-ip32/dma-coherence.h
@@ -80,17 +80,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
 	return 1;
 }
 
-static inline void plat_extra_sync_for_device(struct device *dev)
-{
-	return;
-}
-
-static inline int plat_dma_mapping_error(struct device *dev,
-					 dma_addr_t dma_addr)
-{
-	return 0;
-}
-
 static inline int plat_device_is_coherent(struct device *dev)
 {
 	return 0;		/* IP32 is non-cohernet */
diff --git a/arch/mips/include/asm/mach-jazz/dma-coherence.h b/arch/mips/include/asm/mach-jazz/dma-coherence.h
index 9fc1e9ad7038..949003ef97b3 100644
--- a/arch/mips/include/asm/mach-jazz/dma-coherence.h
+++ b/arch/mips/include/asm/mach-jazz/dma-coherence.h
@@ -48,16 +48,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
 	return 1;
 }
 
-static inline void plat_extra_sync_for_device(struct device *dev)
-{
-}
-
-static inline int plat_dma_mapping_error(struct device *dev,
-					 dma_addr_t dma_addr)
-{
-	return 0;
-}
-
 static inline int plat_device_is_coherent(struct device *dev)
 {
 	return 0;
diff --git a/arch/mips/include/asm/mach-loongson/dma-coherence.h b/arch/mips/include/asm/mach-loongson/dma-coherence.h
index e1433055fe98..aeb2c05d6145 100644
--- a/arch/mips/include/asm/mach-loongson/dma-coherence.h
+++ b/arch/mips/include/asm/mach-loongson/dma-coherence.h
@@ -53,16 +53,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
 	return 1;
 }
 
-static inline void plat_extra_sync_for_device(struct device *dev)
-{
-}
-
-static inline int plat_dma_mapping_error(struct device *dev,
-					 dma_addr_t dma_addr)
-{
-	return 0;
-}
-
 static inline int plat_device_is_coherent(struct device *dev)
 {
 	return 0;
diff --git a/arch/mips/include/asm/mach-powertv/dma-coherence.h b/arch/mips/include/asm/mach-powertv/dma-coherence.h
index f8316720a218..5d4c3fe04722 100644
--- a/arch/mips/include/asm/mach-powertv/dma-coherence.h
+++ b/arch/mips/include/asm/mach-powertv/dma-coherence.h
@@ -99,16 +99,6 @@ static inline int plat_dma_supported(struct device *dev, u64 mask)
 	return 1;
 }
 
-static inline void plat_extra_sync_for_device(struct device *dev)
-{
-}
-
-static inline int plat_dma_mapping_error(struct device *dev,
-					 dma_addr_t dma_addr)
-{
-	return 0;
-}
-
 static inline int plat_device_is_coherent(struct device *dev)
 {
 	return 0;
diff --git a/arch/mips/mm/dma-default.c b/arch/mips/mm/dma-default.c
index 5f8b95512580..2e9418562258 100644
--- a/arch/mips/mm/dma-default.c
+++ b/arch/mips/mm/dma-default.c
@@ -297,7 +297,6 @@ static void mips_dma_sync_single_for_cpu(struct device *dev,
 static void mips_dma_sync_single_for_device(struct device *dev,
 	dma_addr_t dma_handle, size_t size, enum dma_data_direction direction)
 {
-	plat_extra_sync_for_device(dev);
 	if (!plat_device_is_coherent(dev))
 		__dma_sync(dma_addr_to_page(dev, dma_handle),
 			   dma_handle & ~PAGE_MASK, size, direction);
@@ -327,7 +326,7 @@ static void mips_dma_sync_sg_for_device(struct device *dev,
 
 int mips_dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
 {
-	return plat_dma_mapping_error(dev, dma_addr);
+	return 0;
 }
 
 int mips_dma_supported(struct device *dev, u64 mask)
@@ -340,7 +339,6 @@ void dma_cache_sync(struct device *dev, void *vaddr, size_t size,
 {
 	BUG_ON(direction == DMA_NONE);
 
-	plat_extra_sync_for_device(dev);
 	if (!plat_device_is_coherent(dev))
 		__dma_sync_virtual(vaddr, size, direction);
 }
-- 
cgit 


From 0fabe1021f8bc9cffdede4ddad0dd04d43c5166c Mon Sep 17 00:00:00 2001
From: "Maciej W. Rozycki" <macro@linux-mips.org>
Date: Sun, 22 Sep 2013 21:55:19 +0100
Subject: MIPS: DECstation I/O ASIC DMA interrupt classes

This change complements commits d0da7c002f7b2a93582187a9e3f73891a01d8ee4
[MIPS: DEC: Convert to new irq_chip functions] and
5359b938c088423a28c41499f183cd10824c1816 [MIPS: DECstation I/O ASIC DMA
interrupt handling fix] and implements automatic handling of the two
classes of DMA interrupts the I/O ASIC implements, informational and
errors.

Informational DMA interrupts do not stop the transfer and use the
`handle_edge_irq' handler that clears the request right away so that
another request may be recorded while the previous is being handled.

DMA error interrupts stop the transfer and require a corrective action
before DMA can be reenabled.  Therefore they use the `handle_fasteoi_irq'
handler that only clears the request on the way out.  Because MIPS
processor interrupt inputs, one of which the I/O ASIC's interrupt
controller is cascaded to, are level-triggered it is recommended that
error DMA interrupt action handlers are registered with the IRQF_ONESHOT
flag set so that they are run with the interrupt line masked.

This change removes the export of clear_ioasic_dma_irq that now does not
have to be called by device drivers to clear interrupts explicitly
anymore.  Originally these interrupts were cleared in the .end handler of
the `irq_chip' structure, before it was removed.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5874/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/dec/ioasic-irq.c          | 43 +++++++++++++++++++++++++++++++------
 arch/mips/include/asm/dec/ioasic.h  |  2 --
 drivers/net/ethernet/amd/declance.c |  3 +--
 3 files changed, 38 insertions(+), 10 deletions(-)

diff --git a/arch/mips/dec/ioasic-irq.c b/arch/mips/dec/ioasic-irq.c
index 4b3e3a4375a6..e04d973ce5aa 100644
--- a/arch/mips/dec/ioasic-irq.c
+++ b/arch/mips/dec/ioasic-irq.c
@@ -1,7 +1,7 @@
 /*
  *	DEC I/O ASIC interrupts.
  *
- *	Copyright (c) 2002, 2003  Maciej W. Rozycki
+ *	Copyright (c) 2002, 2003, 2013  Maciej W. Rozycki
  *
  *	This program is free software; you can redistribute it and/or
  *	modify it under the terms of the GNU General Public License
@@ -51,22 +51,51 @@ static struct irq_chip ioasic_irq_type = {
 	.irq_unmask = unmask_ioasic_irq,
 };
 
-void clear_ioasic_dma_irq(unsigned int irq)
+static void clear_ioasic_dma_irq(struct irq_data *d)
 {
 	u32 sir;
 
-	sir = ~(1 << (irq - ioasic_irq_base));
+	sir = ~(1 << (d->irq - ioasic_irq_base));
 	ioasic_write(IO_REG_SIR, sir);
+	fast_iob();
 }
 
 static struct irq_chip ioasic_dma_irq_type = {
 	.name = "IO-ASIC-DMA",
-	.irq_ack = ack_ioasic_irq,
+	.irq_ack = clear_ioasic_dma_irq,
 	.irq_mask = mask_ioasic_irq,
-	.irq_mask_ack = ack_ioasic_irq,
 	.irq_unmask = unmask_ioasic_irq,
+	.irq_eoi = clear_ioasic_dma_irq,
 };
 
+/*
+ * I/O ASIC implements two kinds of DMA interrupts, informational and
+ * error interrupts.
+ *
+ * The formers do not stop DMA and should be cleared as soon as possible
+ * so that if they retrigger before the handler has completed, usually as
+ * a side effect of actions taken by the handler, then they are reissued.
+ * These use the `handle_edge_irq' handler that clears the request right
+ * away.
+ *
+ * The latters stop DMA and do not resume it until the interrupt has been
+ * cleared.  This cannot be done until after a corrective action has been
+ * taken and this also means they will not retrigger.  Therefore they use
+ * the `handle_fasteoi_irq' handler that only clears the request on the
+ * way out.  Because MIPS processor interrupt inputs, one of which the I/O
+ * ASIC is cascaded to, are level-triggered it is recommended that error
+ * DMA interrupt action handlers are registered with the IRQF_ONESHOT flag
+ * set so that they are run with the interrupt line masked.
+ *
+ * This mask has `1' bits in the positions of informational interrupts.
+ */
+#define IO_IRQ_DMA_INFO							\
+	(IO_IRQ_MASK(IO_INR_SCC0A_RXDMA) |				\
+	 IO_IRQ_MASK(IO_INR_SCC1A_RXDMA) |				\
+	 IO_IRQ_MASK(IO_INR_ISDN_TXDMA) |				\
+	 IO_IRQ_MASK(IO_INR_ISDN_RXDMA) |				\
+	 IO_IRQ_MASK(IO_INR_ASC_DMA))
+
 void __init init_ioasic_irqs(int base)
 {
 	int i;
@@ -79,7 +108,9 @@ void __init init_ioasic_irqs(int base)
 		irq_set_chip_and_handler(i, &ioasic_irq_type,
 					 handle_level_irq);
 	for (; i < base + IO_IRQ_LINES; i++)
-		irq_set_chip(i, &ioasic_dma_irq_type);
+		irq_set_chip_and_handler(i, &ioasic_dma_irq_type,
+					 1 << (i - base) & IO_IRQ_DMA_INFO ?
+					 handle_edge_irq : handle_fasteoi_irq);
 
 	ioasic_irq_base = base;
 }
diff --git a/arch/mips/include/asm/dec/ioasic.h b/arch/mips/include/asm/dec/ioasic.h
index a6e505a0e44b..be4d62a5a10e 100644
--- a/arch/mips/include/asm/dec/ioasic.h
+++ b/arch/mips/include/asm/dec/ioasic.h
@@ -31,8 +31,6 @@ static inline u32 ioasic_read(unsigned int reg)
 	return ioasic_base[reg / 4];
 }
 
-extern void clear_ioasic_dma_irq(unsigned int irq);
-
 extern void init_ioasic_irqs(int base);
 
 extern int dec_ioasic_clocksource_init(void);
diff --git a/drivers/net/ethernet/amd/declance.c b/drivers/net/ethernet/amd/declance.c
index 94edc9c6fbbf..1b89f1a9127e 100644
--- a/drivers/net/ethernet/amd/declance.c
+++ b/drivers/net/ethernet/amd/declance.c
@@ -725,7 +725,6 @@ static irqreturn_t lance_dma_merr_int(int irq, void *dev_id)
 {
 	struct net_device *dev = dev_id;
 
-	clear_ioasic_dma_irq(irq);
 	printk(KERN_ERR "%s: DMA error\n", dev->name);
 	return IRQ_HANDLED;
 }
@@ -812,7 +811,7 @@ static int lance_open(struct net_device *dev)
 	if (lp->dma_irq >= 0) {
 		unsigned long flags;
 
-		if (request_irq(lp->dma_irq, lance_dma_merr_int, 0,
+		if (request_irq(lp->dma_irq, lance_dma_merr_int, IRQF_ONESHOT,
 				"lance error", dev)) {
 			free_irq(dev->irq, dev);
 			printk("%s: Can't get DMA IRQ %d\n", dev->name,
-- 
cgit 


From 07217d75b7016a6422b3736c4a88b86aa6c0c7b1 Mon Sep 17 00:00:00 2001
From: "Maciej W. Rozycki" <macro@linux-mips.org>
Date: Sun, 22 Sep 2013 21:58:50 +0100
Subject: DEC: Whitespace cleanup

Commit 7034228792cc561e79ff8600f02884bd4c80e287 [MIPS: Whitespace
cleanup.] did a lot of good and a little damage.  Revert the damage.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5875/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/dec/int-handler.S              |  8 ++++----
 arch/mips/dec/prom/call_o32.S            |  2 +-
 arch/mips/dec/prom/init.c                |  2 +-
 arch/mips/dec/prom/memory.c              |  2 +-
 arch/mips/dec/setup.c                    |  4 ++--
 arch/mips/include/asm/dec/ioasic_addrs.h |  2 +-
 arch/mips/include/asm/dec/kn01.h         | 12 ++++++------
 arch/mips/include/asm/dec/kn02ca.h       |  2 +-
 arch/mips/include/asm/dec/prom.h         |  2 +-
 9 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/arch/mips/dec/int-handler.S b/arch/mips/dec/int-handler.S
index 22afed16ccde..41a2fa1fa12e 100644
--- a/arch/mips/dec/int-handler.S
+++ b/arch/mips/dec/int-handler.S
@@ -118,7 +118,7 @@
  *	       7	FPU/R4k timer
  *
  * We handle the IRQ according to _our_ priority (see setup.c),
- * then we just return.	 If multiple IRQs are pending then we will
+ * then we just return.  If multiple IRQs are pending then we will
  * just take another exception, big deal.
  */
 		.align	5
@@ -146,7 +146,7 @@
 		/*
 		 * Find irq with highest priority
 		 */
-		 PTR_LA t1,cpu_mask_nr_tbl
+		 PTR_LA	t1,cpu_mask_nr_tbl
 1:		lw	t2,(t1)
 		nop
 		and	t2,t0
@@ -195,7 +195,7 @@
 		/*
 		 * Find irq with highest priority
 		 */
-		 PTR_LA t1,asic_mask_nr_tbl
+		 PTR_LA	t1,asic_mask_nr_tbl
 2:		lw	t2,(t1)
 		nop
 		and	t2,t0
@@ -221,7 +221,7 @@
 		FEXPORT(cpu_all_int)		# HALT, timers, software junk
 		li	a0,DEC_CPU_IRQ_BASE
 		srl	t0,CAUSEB_IP
-		li	t1,CAUSEF_IP>>CAUSEB_IP # mask
+		li	t1,CAUSEF_IP>>CAUSEB_IP	# mask
 		b	1f
 		 li	t2,4			# nr of bits / 2
 
diff --git a/arch/mips/dec/prom/call_o32.S b/arch/mips/dec/prom/call_o32.S
index c0d1522d448f..8c8498159e43 100644
--- a/arch/mips/dec/prom/call_o32.S
+++ b/arch/mips/dec/prom/call_o32.S
@@ -14,7 +14,7 @@
 
 /* Maximum number of arguments supported.  Must be even!  */
 #define O32_ARGC	32
-/* Number of static registers we save.	*/
+/* Number of static registers we save.  */
 #define O32_STATC	11
 /* Frame size for both of the above.  */
 #define O32_FRAMESZ	(4 * O32_ARGC + SZREG * O32_STATC)
diff --git a/arch/mips/dec/prom/init.c b/arch/mips/dec/prom/init.c
index 468f665de7bb..4e1761e0a09a 100644
--- a/arch/mips/dec/prom/init.c
+++ b/arch/mips/dec/prom/init.c
@@ -104,7 +104,7 @@ void __init prom_init(void)
 	if (prom_is_rex(magic))
 		rex_clear_cache();
 
-	/* Register the early console.	*/
+	/* Register the early console.  */
 	register_prom_console();
 
 	/* Were we compiled with the right CPU option? */
diff --git a/arch/mips/dec/prom/memory.c b/arch/mips/dec/prom/memory.c
index 0aadac742900..8c62316f22f4 100644
--- a/arch/mips/dec/prom/memory.c
+++ b/arch/mips/dec/prom/memory.c
@@ -22,7 +22,7 @@ volatile unsigned long mem_err;		/* So we know an error occurred */
 
 /*
  * Probe memory in 4MB chunks, waiting for an error to tell us we've fallen
- * off the end of real memory.	Only suitable for the 2100/3100's (PMAX).
+ * off the end of real memory.  Only suitable for the 2100/3100's (PMAX).
  */
 
 #define CHUNK_SIZE 0x400000
diff --git a/arch/mips/dec/setup.c b/arch/mips/dec/setup.c
index 741cb4235bde..56e6e2c23683 100644
--- a/arch/mips/dec/setup.c
+++ b/arch/mips/dec/setup.c
@@ -65,7 +65,7 @@ EXPORT_SYMBOL(ioasic_base);
 /*
  * IRQ routing and priority tables.  Priorites are set as follows:
  *
- *		KN01	KN230	KN02	KN02-BA KN02-CA KN03
+ *		KN01	KN230	KN02	KN02-BA	KN02-CA	KN03
  *
  * MEMORY	CPU	CPU	CPU	ASIC	CPU	CPU
  * RTC		CPU	CPU	CPU	ASIC	CPU	CPU
@@ -413,7 +413,7 @@ static void __init dec_init_kn02(void)
 
 /*
  * Machine-specific initialisation for KN02-BA, aka DS5000/1xx
- * (xx = 20, 25, 33), aka 3min.	 Also applies to KN04(-BA), aka
+ * (xx = 20, 25, 33), aka 3min.  Also applies to KN04(-BA), aka
  * DS5000/150, aka 4min.
  */
 static int kn02ba_interrupt[DEC_NR_INTS] __initdata = {
diff --git a/arch/mips/include/asm/dec/ioasic_addrs.h b/arch/mips/include/asm/dec/ioasic_addrs.h
index a8665a7611c2..8bd95971fe2d 100644
--- a/arch/mips/include/asm/dec/ioasic_addrs.h
+++ b/arch/mips/include/asm/dec/ioasic_addrs.h
@@ -40,7 +40,7 @@
 #define IOASIC_FLOPPY	(11*IOASIC_SLOT_SIZE)	/* FDC (maxine) */
 #define IOASIC_SCSI	(12*IOASIC_SLOT_SIZE)	/* ASC SCSI */
 #define IOASIC_FDC_DMA	(13*IOASIC_SLOT_SIZE)	/* FDC DMA (maxine) */
-#define IOASIC_SCSI_DMA (14*IOASIC_SLOT_SIZE)	/* ??? */
+#define IOASIC_SCSI_DMA	(14*IOASIC_SLOT_SIZE)	/* ??? */
 #define IOASIC_RES_15	(15*IOASIC_SLOT_SIZE)	/* unused? */
 
 
diff --git a/arch/mips/include/asm/dec/kn01.h b/arch/mips/include/asm/dec/kn01.h
index 0eb3241de706..88d9ffd74258 100644
--- a/arch/mips/include/asm/dec/kn01.h
+++ b/arch/mips/include/asm/dec/kn01.h
@@ -57,12 +57,12 @@
 /*
  * System Control & Status Register bits.
  */
-#define KN01_CSR_MNFMOD		(1<<15) /* MNFMOD manufacturing jumper */
-#define KN01_CSR_STATUS		(1<<14) /* self-test result status output */
-#define KN01_CSR_PARDIS		(1<<13) /* parity error disable */
-#define KN01_CSR_CRSRTST	(1<<12) /* PCC test output */
-#define KN01_CSR_MONO		(1<<11) /* mono/color fb SIMM installed */
-#define KN01_CSR_MEMERR		(1<<10) /* write timeout error status & ack*/
+#define KN01_CSR_MNFMOD		(1<<15)	/* MNFMOD manufacturing jumper */
+#define KN01_CSR_STATUS		(1<<14)	/* self-test result status output */
+#define KN01_CSR_PARDIS		(1<<13)	/* parity error disable */
+#define KN01_CSR_CRSRTST	(1<<12)	/* PCC test output */
+#define KN01_CSR_MONO		(1<<11)	/* mono/color fb SIMM installed */
+#define KN01_CSR_MEMERR		(1<<10)	/* write timeout error status & ack*/
 #define KN01_CSR_VINT		(1<<9)	/* PCC area detect #2 status & ack */
 #define KN01_CSR_TXDIS		(1<<8)	/* DZ11 transmit disable */
 #define KN01_CSR_VBGTRG		(1<<2)	/* blue DAC voltage over green (r/o) */
diff --git a/arch/mips/include/asm/dec/kn02ca.h b/arch/mips/include/asm/dec/kn02ca.h
index 69dc2a9a2d0f..92c0fe256099 100644
--- a/arch/mips/include/asm/dec/kn02ca.h
+++ b/arch/mips/include/asm/dec/kn02ca.h
@@ -68,7 +68,7 @@
 #define KN03CA_IO_SSR_ISDN_RST	(1<<12)		/* ~ISDN (Am79C30A) reset */
 
 #define KN03CA_IO_SSR_FLOPPY_RST (1<<7)		/* ~FDC (82077) reset */
-#define KN03CA_IO_SSR_VIDEO_RST (1<<6)		/* ~framebuffer reset */
+#define KN03CA_IO_SSR_VIDEO_RST	(1<<6)		/* ~framebuffer reset */
 #define KN03CA_IO_SSR_AB_RST	(1<<5)		/* ACCESS.bus reset */
 #define KN03CA_IO_SSR_RES_4	(1<<4)		/* unused */
 #define KN03CA_IO_SSR_RES_3	(1<<4)		/* unused */
diff --git a/arch/mips/include/asm/dec/prom.h b/arch/mips/include/asm/dec/prom.h
index 446577712bee..c0ead6313845 100644
--- a/arch/mips/include/asm/dec/prom.h
+++ b/arch/mips/include/asm/dec/prom.h
@@ -49,7 +49,7 @@
 
 #ifdef CONFIG_64BIT
 
-#define prom_is_rex(magic)	1	/* KN04 and KN05 are REX PROMs.	 */
+#define prom_is_rex(magic)	1	/* KN04 and KN05 are REX PROMs.  */
 
 #else /* !CONFIG_64BIT */
 
-- 
cgit 


From 33afab80f0da8d7fc9e85297c86d3c46eeb185cd Mon Sep 17 00:00:00 2001
From: "Maciej W. Rozycki" <macro@linux-mips.org>
Date: Sun, 22 Sep 2013 23:06:27 +0100
Subject: MIPS: DECstation CPU feature overrides

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5877/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 .../include/asm/mach-dec/cpu-feature-overrides.h   | 87 ++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 arch/mips/include/asm/mach-dec/cpu-feature-overrides.h

diff --git a/arch/mips/include/asm/mach-dec/cpu-feature-overrides.h b/arch/mips/include/asm/mach-dec/cpu-feature-overrides.h
new file mode 100644
index 000000000000..acce27fd2bb8
--- /dev/null
+++ b/arch/mips/include/asm/mach-dec/cpu-feature-overrides.h
@@ -0,0 +1,87 @@
+/*
+ *	CPU feature overrides for DECstation systems.  Two variations
+ *	are generally applicable.
+ *
+ *	Copyright (C) 2013  Maciej W. Rozycki
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ */
+#ifndef __ASM_MACH_DEC_CPU_FEATURE_OVERRIDES_H
+#define __ASM_MACH_DEC_CPU_FEATURE_OVERRIDES_H
+
+/* Generic ones first.  */
+#define cpu_has_tlb			1
+#define cpu_has_tx39_cache		0
+#define cpu_has_fpu			1
+#define cpu_has_divec			0
+#define cpu_has_prefetch		0
+#define cpu_has_mcheck			0
+#define cpu_has_ejtag			0
+#define cpu_has_mips16			0
+#define cpu_has_mdmx			0
+#define cpu_has_mips3d			0
+#define cpu_has_smartmips		0
+#define cpu_has_rixi			0
+#define cpu_has_vtag_icache		0
+#define cpu_has_ic_fills_f_dc		0
+#define cpu_has_pindexed_dcache		0
+#define cpu_has_local_ebase		0
+#define cpu_icache_snoops_remote_store	1
+#define cpu_has_mips_4			0
+#define cpu_has_mips_5			0
+#define cpu_has_mips32r1		0
+#define cpu_has_mips32r2		0
+#define cpu_has_mips64r1		0
+#define cpu_has_mips64r2		0
+#define cpu_has_dsp			0
+#define cpu_has_mipsmt			0
+#define cpu_has_userlocal		0
+
+/* R3k-specific ones.  */
+#ifdef CONFIG_CPU_R3000
+#define cpu_has_4kex			0
+#define cpu_has_3k_cache		1
+#define cpu_has_4k_cache		0
+#define cpu_has_32fpr			0
+#define cpu_has_counter			0
+#define cpu_has_watch			0
+#define cpu_has_vce			0
+#define cpu_has_cache_cdex_p		0
+#define cpu_has_cache_cdex_s		0
+#define cpu_has_llsc			0
+#define cpu_has_dc_aliases		0
+#define cpu_has_mips_2			0
+#define cpu_has_mips_3			0
+#define cpu_has_nofpuex			1
+#define cpu_has_inclusive_pcaches	0
+#define cpu_dcache_line_size()		4
+#define cpu_icache_line_size()		4
+#define cpu_scache_line_size()		0
+#endif /* CONFIG_CPU_R3000 */
+
+/* R4k-specific ones.  */
+#ifdef CONFIG_CPU_R4X00
+#define cpu_has_4kex			1
+#define cpu_has_3k_cache		0
+#define cpu_has_4k_cache		1
+#define cpu_has_32fpr			1
+#define cpu_has_counter			1
+#define cpu_has_watch			1
+#define cpu_has_vce			1
+#define cpu_has_cache_cdex_p		1
+#define cpu_has_cache_cdex_s		1
+#define cpu_has_llsc			1
+#define cpu_has_dc_aliases		(PAGE_SIZE < 0x4000)
+#define cpu_has_mips_2			1
+#define cpu_has_mips_3			1
+#define cpu_has_nofpuex			0
+#define cpu_has_inclusive_pcaches	1
+#define cpu_dcache_line_size()		16
+#define cpu_icache_line_size()		16
+#define cpu_scache_line_size()		32
+#endif /* CONFIG_CPU_R4X00 */
+
+#endif /* __ASM_MACH_DEC_CPU_FEATURE_OVERRIDES_H */
-- 
cgit 


From 7f177a52a13e3d3751b599ae2b46d3d4658985cd Mon Sep 17 00:00:00 2001
From: "Maciej W. Rozycki" <macro@linux-mips.org>
Date: Mon, 23 Sep 2013 14:01:53 +0100
Subject: MIPS: Tell R4k SC and MC variations apart

There is no reliable way to tell R4000/R4400 SC and MC variations apart,
however simple heuristic should give good results.  Only the MC version
supports coherent caching so we can rely on such a mode having been set
for KSEG0 by the power-on firmware to reliably indicate an MC processor.
SC processors reportedly hang on coherent cached memory accesses and Linux
is linked to a cached load address so the firmware has to use the correct
caching mode to download the kernel image in a cached mode successfully.

OTOH if the firmware chooses to use either the non-coherent cached or the
uncached mode for KSEG0 on an MC processor, then the SC variant will be
reported, just as we currently do, so no regression here.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Jonas Gorski <jogo@openwrt.org>
Cc: MIPS Mailing List <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/5882/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/cpu-probe.c | 28 ++++++++++++++++++++++++----
 1 file changed, 24 insertions(+), 4 deletions(-)

diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 5465dc183e5a..040b83de00ac 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -376,13 +376,33 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c, unsigned int cpu)
 				__cpu_name[cpu] = "R4000PC";
 			}
 		} else {
+			int cca = read_c0_config() & CONF_CM_CMASK;
+			int mc;
+
+			/*
+			 * SC and MC versions can't be reliably told apart,
+			 * but only the latter support coherent caching
+			 * modes so assume the firmware has set the KSEG0
+			 * coherency attribute reasonably (if uncached, we
+			 * assume SC).
+			 */
+			switch (cca) {
+			case CONF_CM_CACHABLE_CE:
+			case CONF_CM_CACHABLE_COW:
+			case CONF_CM_CACHABLE_CUW:
+				mc = 1;
+				break;
+			default:
+				mc = 0;
+				break;
+			}
 			if ((c->processor_id & PRID_REV_MASK) >=
 			    PRID_REV_R4400) {
-				c->cputype = CPU_R4400SC;
-				__cpu_name[cpu] = "R4400SC";
+				c->cputype = mc ? CPU_R4400MC : CPU_R4400SC;
+				__cpu_name[cpu] = mc ? "R4400MC" : "R4400SC";
 			} else {
-				c->cputype = CPU_R4000SC;
-				__cpu_name[cpu] = "R4000SC";
+				c->cputype = mc ? CPU_R4000MC : CPU_R4000SC;
+				__cpu_name[cpu] = mc ? "R4000MC" : "R4000SC";
 			}
 		}
 
-- 
cgit 


From f4ae17aa0f2122b52f642985b46210a1f2eceb0a Mon Sep 17 00:00:00 2001
From: Jayachandran C <jchandra@broadcom.com>
Date: Wed, 25 Sep 2013 16:28:04 +0530
Subject: MIPS: mm: Use scratch for PGD when !CONFIG_MIPS_PGD_C0_CONTEXT

Allow usage of scratch register for current pgd even when
MIPS_PGD_C0_CONTEXT is not configured. MIPS_PGD_C0_CONTEXT is set
for 64r2 platforms to indicate availability of Xcontext for saving
cpuid, thus freeing Context to be used for saving PGD. This option
was also tied to using a scratch register for storing PGD.

This commit will allow usage of scratch register to store the current
pgd if one can be allocated for the platform, even when
MIPS_PGD_C0_CONTEXT is not set. The cpuid will be kept in the CP0
Context register in this case.

The code to store the current pgd for the TLB miss handler is now
generated in all cases. When scratch register is available, the PGD
is also stored in the scratch register.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Cc: linux-mips@linux-mips.org
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Patchwork: https://patchwork.linux-mips.org/patch/5906/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/include/asm/mmu_context.h |  6 +--
 arch/mips/mm/tlb-funcs.S            |  2 -
 arch/mips/mm/tlbex.c                | 90 +++++++++++++++++++++++--------------
 3 files changed, 58 insertions(+), 40 deletions(-)

diff --git a/arch/mips/include/asm/mmu_context.h b/arch/mips/include/asm/mmu_context.h
index ab8e26051ed7..e277bbad2871 100644
--- a/arch/mips/include/asm/mmu_context.h
+++ b/arch/mips/include/asm/mmu_context.h
@@ -24,14 +24,13 @@
 #endif /* SMTC */
 #include <asm-generic/mm_hooks.h>
 
-#ifdef CONFIG_MIPS_PGD_C0_CONTEXT
-
 #define TLBMISS_HANDLER_SETUP_PGD(pgd)					\
 do {									\
 	extern void tlbmiss_handler_setup_pgd(unsigned long);		\
 	tlbmiss_handler_setup_pgd((unsigned long)(pgd));		\
 } while (0)
 
+#ifdef CONFIG_MIPS_PGD_C0_CONTEXT
 #define TLBMISS_HANDLER_SETUP()						\
 	do {								\
 		TLBMISS_HANDLER_SETUP_PGD(swapper_pg_dir);		\
@@ -48,9 +47,6 @@ do {									\
  */
 extern unsigned long pgd_current[];
 
-#define TLBMISS_HANDLER_SETUP_PGD(pgd) \
-	pgd_current[smp_processor_id()] = (unsigned long)(pgd)
-
 #define TLBMISS_HANDLER_SETUP()						\
 	write_c0_context((unsigned long) smp_processor_id() <<		\
 						SMP_CPUID_REGSHIFT);	\
diff --git a/arch/mips/mm/tlb-funcs.S b/arch/mips/mm/tlb-funcs.S
index 79bca3130bd1..30a494db99c2 100644
--- a/arch/mips/mm/tlb-funcs.S
+++ b/arch/mips/mm/tlb-funcs.S
@@ -16,12 +16,10 @@
 
 #define FASTPATH_SIZE	128
 
-#ifdef CONFIG_MIPS_PGD_C0_CONTEXT
 LEAF(tlbmiss_handler_setup_pgd)
 	.space		16 * 4
 END(tlbmiss_handler_setup_pgd)
 EXPORT(tlbmiss_handler_setup_pgd_end)
-#endif
 
 LEAF(handle_tlbm)
 	.space		FASTPATH_SIZE * 4
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index 444d92108396..fffa7fe319a0 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -799,11 +799,11 @@ build_get_pmde64(u32 **p, struct uasm_label **l, struct uasm_reloc **r,
 	}
 	/* No uasm_i_nop needed here, since the next insn doesn't touch TMP. */
 
-#ifdef CONFIG_MIPS_PGD_C0_CONTEXT
 	if (pgd_reg != -1) {
 		/* pgd is in pgd_reg */
 		UASM_i_MFC0(p, ptr, c0_kscratch(), pgd_reg);
 	} else {
+#if defined(CONFIG_MIPS_PGD_C0_CONTEXT)
 		/*
 		 * &pgd << 11 stored in CONTEXT [23..63].
 		 */
@@ -815,18 +815,18 @@ build_get_pmde64(u32 **p, struct uasm_label **l, struct uasm_reloc **r,
 		/* 1 0	1 0 1  << 6  xkphys cached */
 		uasm_i_ori(p, ptr, ptr, 0x540);
 		uasm_i_drotr(p, ptr, ptr, 11);
-	}
 #elif defined(CONFIG_SMP)
-	UASM_i_CPUID_MFC0(p, ptr, SMP_CPUID_REG);
-	uasm_i_dsrl_safe(p, ptr, ptr, SMP_CPUID_PTRSHIFT);
-	UASM_i_LA_mostly(p, tmp, pgdc);
-	uasm_i_daddu(p, ptr, ptr, tmp);
-	uasm_i_dmfc0(p, tmp, C0_BADVADDR);
-	uasm_i_ld(p, ptr, uasm_rel_lo(pgdc), ptr);
+		UASM_i_CPUID_MFC0(p, ptr, SMP_CPUID_REG);
+		uasm_i_dsrl_safe(p, ptr, ptr, SMP_CPUID_PTRSHIFT);
+		UASM_i_LA_mostly(p, tmp, pgdc);
+		uasm_i_daddu(p, ptr, ptr, tmp);
+		uasm_i_dmfc0(p, tmp, C0_BADVADDR);
+		uasm_i_ld(p, ptr, uasm_rel_lo(pgdc), ptr);
 #else
-	UASM_i_LA_mostly(p, ptr, pgdc);
-	uasm_i_ld(p, ptr, uasm_rel_lo(pgdc), ptr);
+		UASM_i_LA_mostly(p, ptr, pgdc);
+		uasm_i_ld(p, ptr, uasm_rel_lo(pgdc), ptr);
 #endif
+	}
 
 	uasm_l_vmalloc_done(l, *p);
 
@@ -921,19 +921,25 @@ build_get_pgd_vmalloc64(u32 **p, struct uasm_label **l, struct uasm_reloc **r,
 static void __maybe_unused
 build_get_pgde32(u32 **p, unsigned int tmp, unsigned int ptr)
 {
-	long pgdc = (long)pgd_current;
+	if (pgd_reg != -1) {
+		/* pgd is in pgd_reg */
+		uasm_i_mfc0(p, ptr, c0_kscratch(), pgd_reg);
+		uasm_i_mfc0(p, tmp, C0_BADVADDR); /* get faulting address */
+	} else {
+		long pgdc = (long)pgd_current;
 
-	/* 32 bit SMP has smp_processor_id() stored in CONTEXT. */
+		/* 32 bit SMP has smp_processor_id() stored in CONTEXT. */
 #ifdef CONFIG_SMP
-	uasm_i_mfc0(p, ptr, SMP_CPUID_REG);
-	UASM_i_LA_mostly(p, tmp, pgdc);
-	uasm_i_srl(p, ptr, ptr, SMP_CPUID_PTRSHIFT);
-	uasm_i_addu(p, ptr, tmp, ptr);
+		uasm_i_mfc0(p, ptr, SMP_CPUID_REG);
+		UASM_i_LA_mostly(p, tmp, pgdc);
+		uasm_i_srl(p, ptr, ptr, SMP_CPUID_PTRSHIFT);
+		uasm_i_addu(p, ptr, tmp, ptr);
 #else
-	UASM_i_LA_mostly(p, ptr, pgdc);
+		UASM_i_LA_mostly(p, ptr, pgdc);
 #endif
-	uasm_i_mfc0(p, tmp, C0_BADVADDR); /* get faulting address */
-	uasm_i_lw(p, ptr, uasm_rel_lo(pgdc), ptr);
+		uasm_i_mfc0(p, tmp, C0_BADVADDR); /* get faulting address */
+		uasm_i_lw(p, ptr, uasm_rel_lo(pgdc), ptr);
+	}
 	uasm_i_srl(p, tmp, tmp, PGDIR_SHIFT); /* get pgd only bits */
 	uasm_i_sll(p, tmp, tmp, PGD_T_LOG2);
 	uasm_i_addu(p, ptr, ptr, tmp); /* add in pgd offset */
@@ -1407,28 +1413,30 @@ static void build_r4000_tlb_refill_handler(void)
 extern u32 handle_tlbl[], handle_tlbl_end[];
 extern u32 handle_tlbs[], handle_tlbs_end[];
 extern u32 handle_tlbm[], handle_tlbm_end[];
-
-#ifdef CONFIG_MIPS_PGD_C0_CONTEXT
 extern u32 tlbmiss_handler_setup_pgd[], tlbmiss_handler_setup_pgd_end[];
 
-static void build_r4000_setup_pgd(void)
+static void build_setup_pgd(void)
 {
 	const int a0 = 4;
-	const int a1 = 5;
+	const int __maybe_unused a1 = 5;
+	const int __maybe_unused a2 = 6;
 	u32 *p = tlbmiss_handler_setup_pgd;
 	const int tlbmiss_handler_setup_pgd_size =
 		tlbmiss_handler_setup_pgd_end - tlbmiss_handler_setup_pgd;
-	struct uasm_label *l = labels;
-	struct uasm_reloc *r = relocs;
+#ifndef CONFIG_MIPS_PGD_C0_CONTEXT
+	long pgdc = (long)pgd_current;
+#endif
 
 	memset(tlbmiss_handler_setup_pgd, 0, tlbmiss_handler_setup_pgd_size *
 					sizeof(tlbmiss_handler_setup_pgd[0]));
 	memset(labels, 0, sizeof(labels));
 	memset(relocs, 0, sizeof(relocs));
-
 	pgd_reg = allocate_kscratch();
-
+#ifdef CONFIG_MIPS_PGD_C0_CONTEXT
 	if (pgd_reg == -1) {
+		struct uasm_label *l = labels;
+		struct uasm_reloc *r = relocs;
+
 		/* PGD << 11 in c0_Context */
 		/*
 		 * If it is a ckseg0 address, convert to a physical
@@ -1450,6 +1458,26 @@ static void build_r4000_setup_pgd(void)
 		uasm_i_jr(&p, 31);
 		UASM_i_MTC0(&p, a0, c0_kscratch(), pgd_reg);
 	}
+#else
+#ifdef CONFIG_SMP
+	/* Save PGD to pgd_current[smp_processor_id()] */
+	UASM_i_CPUID_MFC0(&p, a1, SMP_CPUID_REG);
+	UASM_i_SRL_SAFE(&p, a1, a1, SMP_CPUID_PTRSHIFT);
+	UASM_i_LA_mostly(&p, a2, pgdc);
+	UASM_i_ADDU(&p, a2, a2, a1);
+	UASM_i_SW(&p, a0, uasm_rel_lo(pgdc), a2);
+#else
+	UASM_i_LA_mostly(&p, a2, pgdc);
+	UASM_i_SW(&p, a0, uasm_rel_lo(pgdc), a2);
+#endif /* SMP */
+	uasm_i_jr(&p, 31);
+
+	/* if pgd_reg is allocated, save PGD also to scratch register */
+	if (pgd_reg != -1)
+		UASM_i_MTC0(&p, a0, c0_kscratch(), pgd_reg);
+	else
+		uasm_i_nop(&p);
+#endif
 	if (p >= tlbmiss_handler_setup_pgd_end)
 		panic("tlbmiss_handler_setup_pgd space exceeded");
 
@@ -1460,7 +1488,6 @@ static void build_r4000_setup_pgd(void)
 	dump_handler("tlbmiss_handler", tlbmiss_handler_setup_pgd,
 					tlbmiss_handler_setup_pgd_size);
 }
-#endif
 
 static void
 iPTE_LW(u32 **p, unsigned int pte, unsigned int ptr)
@@ -2153,10 +2180,8 @@ static void flush_tlb_handlers(void)
 			   (unsigned long)handle_tlbs_end);
 	local_flush_icache_range((unsigned long)handle_tlbm,
 			   (unsigned long)handle_tlbm_end);
-#ifdef CONFIG_MIPS_PGD_C0_CONTEXT
 	local_flush_icache_range((unsigned long)tlbmiss_handler_setup_pgd,
 			   (unsigned long)tlbmiss_handler_setup_pgd_end);
-#endif
 }
 
 void build_tlb_refill_handler(void)
@@ -2188,6 +2213,7 @@ void build_tlb_refill_handler(void)
 		if (!run_once) {
 			if (!cpu_has_local_ebase)
 				build_r3000_tlb_refill_handler();
+			build_setup_pgd();
 			build_r3000_tlb_load_handler();
 			build_r3000_tlb_store_handler();
 			build_r3000_tlb_modify_handler();
@@ -2211,9 +2237,7 @@ void build_tlb_refill_handler(void)
 	default:
 		if (!run_once) {
 			scratch_reg = allocate_kscratch();
-#ifdef CONFIG_MIPS_PGD_C0_CONTEXT
-			build_r4000_setup_pgd();
-#endif
+			build_setup_pgd();
 			build_r4000_tlb_load_handler();
 			build_r4000_tlb_store_handler();
 			build_r4000_tlb_modify_handler();
-- 
cgit 


From 2a9c27517685341655f2ed78aabdd0ee671c7210 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Thu, 12 Jul 2012 14:01:31 +0200
Subject: MIPS: compat: Export O32 syscall table and rename to avoid duplicate
 symbol.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/scall64-o32.S | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 37605dc8eef7..f1acdb429f4f 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -53,7 +53,7 @@ NESTED(handle_sys, PT_SIZE, sp)
 	sll	a3, a3, 0
 
 	dsll	t0, v0, 3		# offset into table
-	ld	t2, (sys_call_table - (__NR_O32_Linux * 8))(t0)
+	ld	t2, (sys32_call_table - (__NR_O32_Linux * 8))(t0)
 
 	sd	a3, PT_R26(sp)		# save a3 for syscall restarting
 
@@ -168,7 +168,7 @@ LEAF(sys32_syscall)
 	beqz	t0, einval		# do not recurse
 	dsll	t1, t0, 3
 	beqz	v0, einval
-	ld	t2, sys_call_table(t1)		# syscall routine
+	ld	t2, sys32_call_table(t1)		# syscall routine
 
 	move	a0, a1			# shift argument registers
 	move	a1, a2
@@ -190,8 +190,8 @@ einval: li	v0, -ENOSYS
 	END(sys32_syscall)
 
 	.align	3
-	.type	sys_call_table,@object
-sys_call_table:
+	.type	sys32_call_table,@object
+EXPORT(sys32_call_table)
 	PTR	sys32_syscall			/* 4000 */
 	PTR	sys_exit
 	PTR	__sys_fork
@@ -541,4 +541,4 @@ sys_call_table:
 	PTR	compat_sys_process_vm_writev
 	PTR	sys_kcmp
 	PTR	sys_finit_module
-	.size	sys_call_table,.-sys_call_table
+	.size	sys32_call_table,.-sys32_call_table
-- 
cgit 


From 43dec43069d2d1064a57f159e02e2ff99ce75ff3 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Thu, 12 Jul 2012 14:02:41 +0200
Subject: MIPS: compat: Mark N32 syscall table as data object.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/scall64-n32.S | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index cab150789c8d..2f48f5934399 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -103,6 +103,7 @@ not_n32_scall:
 
 	END(handle_sysn32)
 
+	.type	sysn32_call_table, @object
 EXPORT(sysn32_call_table)
 	PTR	sys_read			/* 6000 */
 	PTR	sys_write
-- 
cgit 


From 03b94e2ec4adfeb6a2734a265fe8affa68a51a41 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Thu, 12 Jul 2012 14:06:46 +0200
Subject: MIPS: 64-bit: Mark native syscall table as data object.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/scall64-64.S | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index be6627ead619..57e3742fec59 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -114,7 +114,8 @@ illegal_syscall:
 	END(handle_sys64)
 
 	.align	3
-sys_call_table:
+	.type	sys_call_table, @object
+EXPORT(sys_call_table)
 	PTR	sys_read			/* 5000 */
 	PTR	sys_write
 	PTR	sys_open
-- 
cgit 


From 51d139b1e481955b7bdd0c8d05d97cf2eb1f5be1 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Thu, 12 Jul 2012 17:13:15 +0200
Subject: MIPS: Enable entries for SIGSYS in struct siginfo.

This is necessary because MIPS doesn't use HAVE_ARCH_SIGINFO_T for
historical reasons.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/include/uapi/asm/siginfo.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/mips/include/uapi/asm/siginfo.h b/arch/mips/include/uapi/asm/siginfo.h
index 88e292b7719e..e81174432bab 100644
--- a/arch/mips/include/uapi/asm/siginfo.h
+++ b/arch/mips/include/uapi/asm/siginfo.h
@@ -33,6 +33,8 @@ struct siginfo;
 #error _MIPS_SZLONG neither 32 nor 64
 #endif
 
+#define __ARCH_SIGSYS
+
 #include <asm-generic/siginfo.h>
 
 typedef struct siginfo {
@@ -97,6 +99,13 @@ typedef struct siginfo {
 			__ARCH_SI_BAND_T _band; /* POLL_IN, POLL_OUT, POLL_MSG */
 			int _fd;
 		} _sigpoll;
+
+		/* SIGSYS */
+		struct {
+			void __user *_call_addr; /* calling user insn */
+			int _syscall;	/* triggering system call number */
+			unsigned int _arch;	/* AUDIT_ARCH_* of syscall */
+		} _sigsys;
 	} _sifields;
 } siginfo_t;
 
-- 
cgit 


From 403342a82d7959ad76210778cfcd7e26f7dd98cd Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Fri, 13 Jul 2012 13:36:40 +0200
Subject: MIPS: 32-bit: Remove unused gas macros fifty and mille.

These are a leftover of the IRIX compat code which was removed in
2957c9e61ee9c37e7ebf2c8acab03e073fe942fd (kernel.org) rsp.
b934da913f236bca00c41d9e386e980586000461 (lmo) [[MIPS] IRIX: Goodbye
and thanks for all the fish].

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/scall32-o32.S | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index e774bb1088b5..c0a53f2a5440 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -218,20 +218,6 @@ einval: li	v0, -ENOSYS
 	jr	ra
 	END(sys_syscall)
 
-	.macro	fifty ptr, nargs, from=1, to=50
-	sys	\ptr		\nargs
-	.if	\to-\from
-	fifty	\ptr,\nargs,"(\from+1)",\to
-	.endif
-	.endm
-
-	.macro	mille ptr, nargs, from=1, to=20
-	fifty	\ptr,\nargs
-	.if	\to-\from
-	mille	\ptr,\nargs,"(\from+1)",\to
-	.endif
-	.endm
-
 	.macro	syscalltable
 	sys	sys_syscall		8	/* 4000 */
 	sys	sys_exit		1
-- 
cgit 


From 19e2e172f0ed2552793ecef506b00c3fa3421845 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Fri, 13 Jul 2012 23:38:17 +0200
Subject: MIPS: Provide arch_syscall_addr.

The generic version is wrong for MIPS.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/include/asm/syscall.h | 16 ++++++++++++++++
 arch/mips/kernel/Makefile       |  1 +
 arch/mips/kernel/ftrace.c       | 33 +++++++++++++++++++++++++++++++++
 3 files changed, 50 insertions(+)
 create mode 100644 arch/mips/include/asm/syscall.h

diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
new file mode 100644
index 000000000000..ab5effdc935d
--- /dev/null
+++ b/arch/mips/include/asm/syscall.h
@@ -0,0 +1,16 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2012 Ralf Baechle <ralf@linux-mips.org>
+ */
+
+#ifndef __ASM_MIPS_SYSCALL_H
+#define __ASM_MIPS_SYSCALL_H
+
+extern const unsigned long sys_call_table[];
+extern const unsigned long sys32_call_table[];
+extern const unsigned long sysn32_call_table[];
+
+#endif	/* __ASM_MIPS_SYSCALL_H */
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index 4bbece9b3eb4..81773a4508f4 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -35,6 +35,7 @@ obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 obj-$(CONFIG_MODULES)		+= mips_ksyms.o module.o
 obj-$(CONFIG_MODULES_USE_ELF_RELA) += module-rela.o
 
+obj-$(CONFIG_FTRACE_SYSCALLS)	+= ftrace.o
 obj-$(CONFIG_FUNCTION_TRACER)	+= mcount.o ftrace.o
 
 obj-$(CONFIG_CPU_R4K_FPU)	+= r4k_fpu.o r4k_switch.o
diff --git a/arch/mips/kernel/ftrace.c b/arch/mips/kernel/ftrace.c
index dba90ec0dc38..6e022c44f447 100644
--- a/arch/mips/kernel/ftrace.c
+++ b/arch/mips/kernel/ftrace.c
@@ -11,11 +11,14 @@
 #include <linux/uaccess.h>
 #include <linux/init.h>
 #include <linux/ftrace.h>
+#include <linux/syscalls.h>
 
 #include <asm/asm.h>
 #include <asm/asm-offsets.h>
 #include <asm/cacheflush.h>
+#include <asm/syscall.h>
 #include <asm/uasm.h>
+#include <asm/unistd.h>
 
 #include <asm-generic/sections.h>
 
@@ -364,3 +367,33 @@ out:
 	WARN_ON(1);
 }
 #endif	/* CONFIG_FUNCTION_GRAPH_TRACER */
+
+#ifdef CONFIG_FTRACE_SYSCALLS
+
+#ifdef CONFIG_32BIT
+unsigned long __init arch_syscall_addr(int nr)
+{
+	return (unsigned long)sys_call_table[nr - __NR_O32_Linux];
+}
+#endif
+
+#ifdef CONFIG_64BIT
+
+unsigned long __init arch_syscall_addr(int nr)
+{
+#ifdef CONFIG_MIPS32_N32
+	if (nr >= __NR_N32_Linux && nr <= __NR_N32_Linux + __NR_N32_Linux_syscalls)
+		return (unsigned long)sysn32_call_table[(nr - __NR_N32_Linux) * 2];
+#endif
+	if (nr >= __NR_64_Linux  && nr <= __NR_64_Linux + __NR_64_Linux_syscalls)
+		return (unsigned long)sys_call_table[nr - __NR_64_Linux];
+#ifdef CONFIG_MIPS32_O32
+	if (nr >= __NR_O32_Linux && nr <= __NR_O32_Linux + __NR_O32_Linux_syscalls)
+		return (unsigned long)sys32_call_table[nr - __NR_O32_Linux];
+#endif
+
+	return (unsigned long) &sys_ni_syscall;
+}
+#endif
+
+#endif /* CONFIG_FTRACE_SYSCALLS */
-- 
cgit 


From 46e12c07b3b9603c60fc1d421ff18618241cb081 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Sat, 14 Jul 2012 09:22:05 +0200
Subject: MIPS: O32 / 32-bit: Always copy 4 stack arguments.

This gets us rid of the hard to maintain table of the number of syscall
arguments and paves the way for further restructuring of the syscall
code.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/ftrace.c      |   2 +-
 arch/mips/kernel/scall32-o32.S | 832 ++++++++++++++++++++---------------------
 2 files changed, 401 insertions(+), 433 deletions(-)

diff --git a/arch/mips/kernel/ftrace.c b/arch/mips/kernel/ftrace.c
index 6e022c44f447..185ba258361b 100644
--- a/arch/mips/kernel/ftrace.c
+++ b/arch/mips/kernel/ftrace.c
@@ -383,7 +383,7 @@ unsigned long __init arch_syscall_addr(int nr)
 {
 #ifdef CONFIG_MIPS32_N32
 	if (nr >= __NR_N32_Linux && nr <= __NR_N32_Linux + __NR_N32_Linux_syscalls)
-		return (unsigned long)sysn32_call_table[(nr - __NR_N32_Linux) * 2];
+		return (unsigned long)sysn32_call_table[nr - __NR_N32_Linux];
 #endif
 	if (nr >= __NR_64_Linux  && nr <= __NR_64_Linux + __NR_64_Linux_syscalls)
 		return (unsigned long)sys_call_table[nr - __NR_64_Linux];
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index c0a53f2a5440..e8e541b40d86 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -40,17 +40,58 @@ NESTED(handle_sys, PT_SIZE, sp)
 	sw	t1, PT_EPC(sp)
 	beqz	t0, illegal_syscall
 
-	sll	t0, v0, 3
+	sll	t0, v0, 2
 	la	t1, sys_call_table
 	addu	t1, t0
 	lw	t2, (t1)		# syscall routine
-	lw	t3, 4(t1)		# >= 0 if we need stack arguments
 	beqz	t2, illegal_syscall
 
 	sw	a3, PT_R26(sp)		# save a3 for syscall restarting
-	bgez	t3, stackargs
 
-stack_done:
+	/*
+	 * More than four arguments.  Try to deal with it by copying the
+	 * stack arguments from the user stack to the kernel stack.
+	 * This Sucks (TM).
+	 */
+	lw	t0, PT_R29(sp)		# get old user stack pointer
+
+	/*
+	 * We intentionally keep the kernel stack a little below the top of
+	 * userspace so we don't have to do a slower byte accurate check here.
+	 */
+	lw	t5, TI_ADDR_LIMIT($28)
+	addu	t4, t0, 32
+	and	t5, t4
+	bltz	t5, bad_stack		# -> sp is bad
+
+	/*
+	 * Ok, copy the args from the luser stack to the kernel stack.
+	 * t3 is the precomputed number of instruction bytes needed to
+	 * load or store arguments 6-8.
+	 */
+
+	.set    push
+	.set    noreorder
+	.set	nomacro
+
+1:	lw	t5, 16(t0)		# argument #5 from usp
+4:	lw	t6, 20(t0)		# argument #6 from usp
+3:	lw	t7, 24(t0)		# argument #7 from usp
+2:	lw	t8, 28(t0)		# argument #8 from usp
+
+	sw	t5, 16(sp)		# argument #5 to ksp
+	sw	t6, 20(sp)		# argument #6 to ksp
+	sw	t7, 24(sp)		# argument #7 to ksp
+	sw	t8, 28(sp)		# argument #8 to ksp
+	.set	pop
+
+	.section __ex_table,"a"
+	PTR	1b,bad_stack
+	PTR	2b,bad_stack
+	PTR	3b,bad_stack
+	PTR	4b,bad_stack
+	.previous
+
 	lw	t0, TI_FLAGS($28)	# syscall tracing enabled?
 	li	t1, _TIF_WORK_SYSCALL_ENTRY
 	and	t0, t1
@@ -101,66 +142,6 @@ syscall_trace_entry:
 
 /* ------------------------------------------------------------------------ */
 
-	/*
-	 * More than four arguments.  Try to deal with it by copying the
-	 * stack arguments from the user stack to the kernel stack.
-	 * This Sucks (TM).
-	 */
-stackargs:
-	lw	t0, PT_R29(sp)		# get old user stack pointer
-
-	/*
-	 * We intentionally keep the kernel stack a little below the top of
-	 * userspace so we don't have to do a slower byte accurate check here.
-	 */
-	lw	t5, TI_ADDR_LIMIT($28)
-	addu	t4, t0, 32
-	and	t5, t4
-	bltz	t5, bad_stack		# -> sp is bad
-
-	/* Ok, copy the args from the luser stack to the kernel stack.
-	 * t3 is the precomputed number of instruction bytes needed to
-	 * load or store arguments 6-8.
-	 */
-
-	la	t1, 5f			# load up to 3 arguments
-	subu	t1, t3
-1:	lw	t5, 16(t0)		# argument #5 from usp
-	.set	push
-	.set	noreorder
-	.set	nomacro
-	jr	t1
-	 addiu	t1, 6f - 5f
-
-2:	lw	t8, 28(t0)		# argument #8 from usp
-3:	lw	t7, 24(t0)		# argument #7 from usp
-4:	lw	t6, 20(t0)		# argument #6 from usp
-5:	jr	t1
-	 sw	t5, 16(sp)		# argument #5 to ksp
-
-#ifdef CONFIG_CPU_MICROMIPS
-	sw	t8, 28(sp)		# argument #8 to ksp
-	nop
-	sw	t7, 24(sp)		# argument #7 to ksp
-	nop
-	sw	t6, 20(sp)		# argument #6 to ksp
-	nop
-#else
-	sw	t8, 28(sp)		# argument #8 to ksp
-	sw	t7, 24(sp)		# argument #7 to ksp
-	sw	t6, 20(sp)		# argument #6 to ksp
-#endif
-6:	j	stack_done		# go back
-	 nop
-	.set	pop
-
-	.section __ex_table,"a"
-	PTR	1b,bad_stack
-	PTR	2b,bad_stack
-	PTR	3b,bad_stack
-	PTR	4b,bad_stack
-	.previous
-
 	/*
 	 * The stackpointer for a call with more than 4 arguments is bad.
 	 * We probably should handle this case a bit more drastic.
@@ -187,7 +168,7 @@ illegal_syscall:
 	subu	t0, a0, __NR_O32_Linux	# check syscall number
 	sltiu	v0, t0, __NR_O32_Linux_syscalls + 1
 	beqz	t0, einval		# do not recurse
-	sll	t1, t0, 3
+	sll	t1, t0, 2
 	beqz	v0, einval
 	lw	t2, sys_call_table(t1)		# syscall routine
 
@@ -218,246 +199,248 @@ einval: li	v0, -ENOSYS
 	jr	ra
 	END(sys_syscall)
 
-	.macro	syscalltable
-	sys	sys_syscall		8	/* 4000 */
-	sys	sys_exit		1
-	sys	__sys_fork		0
-	sys	sys_read		3
-	sys	sys_write		3
-	sys	sys_open		3	/* 4005 */
-	sys	sys_close		1
-	sys	sys_waitpid		3
-	sys	sys_creat		2
-	sys	sys_link		2
-	sys	sys_unlink		1	/* 4010 */
-	sys	sys_execve		0
-	sys	sys_chdir		1
-	sys	sys_time		1
-	sys	sys_mknod		3
-	sys	sys_chmod		2	/* 4015 */
-	sys	sys_lchown		3
-	sys	sys_ni_syscall		0
-	sys	sys_ni_syscall		0	/* was sys_stat */
-	sys	sys_lseek		3
-	sys	sys_getpid		0	/* 4020 */
-	sys	sys_mount		5
-	sys	sys_oldumount		1
-	sys	sys_setuid		1
-	sys	sys_getuid		0
-	sys	sys_stime		1	/* 4025 */
-	sys	sys_ptrace		4
-	sys	sys_alarm		1
-	sys	sys_ni_syscall		0	/* was sys_fstat */
-	sys	sys_pause		0
-	sys	sys_utime		2	/* 4030 */
-	sys	sys_ni_syscall		0
-	sys	sys_ni_syscall		0
-	sys	sys_access		2
-	sys	sys_nice		1
-	sys	sys_ni_syscall		0	/* 4035 */
-	sys	sys_sync		0
-	sys	sys_kill		2
-	sys	sys_rename		2
-	sys	sys_mkdir		2
-	sys	sys_rmdir		1	/* 4040 */
-	sys	sys_dup			1
-	sys	sysm_pipe		0
-	sys	sys_times		1
-	sys	sys_ni_syscall		0
-	sys	sys_brk			1	/* 4045 */
-	sys	sys_setgid		1
-	sys	sys_getgid		0
-	sys	sys_ni_syscall		0	/* was signal(2) */
-	sys	sys_geteuid		0
-	sys	sys_getegid		0	/* 4050 */
-	sys	sys_acct		1
-	sys	sys_umount		2
-	sys	sys_ni_syscall		0
-	sys	sys_ioctl		3
-	sys	sys_fcntl		3	/* 4055 */
-	sys	sys_ni_syscall		2
-	sys	sys_setpgid		2
-	sys	sys_ni_syscall		0
-	sys	sys_olduname		1
-	sys	sys_umask		1	/* 4060 */
-	sys	sys_chroot		1
-	sys	sys_ustat		2
-	sys	sys_dup2		2
-	sys	sys_getppid		0
-	sys	sys_getpgrp		0	/* 4065 */
-	sys	sys_setsid		0
-	sys	sys_sigaction		3
-	sys	sys_sgetmask		0
-	sys	sys_ssetmask		1
-	sys	sys_setreuid		2	/* 4070 */
-	sys	sys_setregid		2
-	sys	sys_sigsuspend		0
-	sys	sys_sigpending		1
-	sys	sys_sethostname		2
-	sys	sys_setrlimit		2	/* 4075 */
-	sys	sys_getrlimit		2
-	sys	sys_getrusage		2
-	sys	sys_gettimeofday	2
-	sys	sys_settimeofday	2
-	sys	sys_getgroups		2	/* 4080 */
-	sys	sys_setgroups		2
-	sys	sys_ni_syscall		0	/* old_select */
-	sys	sys_symlink		2
-	sys	sys_ni_syscall		0	/* was sys_lstat */
-	sys	sys_readlink		3	/* 4085 */
-	sys	sys_uselib		1
-	sys	sys_swapon		2
-	sys	sys_reboot		3
-	sys	sys_old_readdir		3
-	sys	sys_mips_mmap		6	/* 4090 */
-	sys	sys_munmap		2
-	sys	sys_truncate		2
-	sys	sys_ftruncate		2
-	sys	sys_fchmod		2
-	sys	sys_fchown		3	/* 4095 */
-	sys	sys_getpriority		2
-	sys	sys_setpriority		3
-	sys	sys_ni_syscall		0
-	sys	sys_statfs		2
-	sys	sys_fstatfs		2	/* 4100 */
-	sys	sys_ni_syscall		0	/* was ioperm(2) */
-	sys	sys_socketcall		2
-	sys	sys_syslog		3
-	sys	sys_setitimer		3
-	sys	sys_getitimer		2	/* 4105 */
-	sys	sys_newstat		2
-	sys	sys_newlstat		2
-	sys	sys_newfstat		2
-	sys	sys_uname		1
-	sys	sys_ni_syscall		0	/* 4110 was iopl(2) */
-	sys	sys_vhangup		0
-	sys	sys_ni_syscall		0	/* was sys_idle() */
-	sys	sys_ni_syscall		0	/* was sys_vm86 */
-	sys	sys_wait4		4
-	sys	sys_swapoff		1	/* 4115 */
-	sys	sys_sysinfo		1
-	sys	sys_ipc			6
-	sys	sys_fsync		1
-	sys	sys_sigreturn		0
-	sys	__sys_clone		6	/* 4120 */
-	sys	sys_setdomainname	2
-	sys	sys_newuname		1
-	sys	sys_ni_syscall		0	/* sys_modify_ldt */
-	sys	sys_adjtimex		1
-	sys	sys_mprotect		3	/* 4125 */
-	sys	sys_sigprocmask		3
-	sys	sys_ni_syscall		0	/* was create_module */
-	sys	sys_init_module		5
-	sys	sys_delete_module	1
-	sys	sys_ni_syscall		0	/* 4130 was get_kernel_syms */
-	sys	sys_quotactl		4
-	sys	sys_getpgid		1
-	sys	sys_fchdir		1
-	sys	sys_bdflush		2
-	sys	sys_sysfs		3	/* 4135 */
-	sys	sys_personality		1
-	sys	sys_ni_syscall		0	/* for afs_syscall */
-	sys	sys_setfsuid		1
-	sys	sys_setfsgid		1
-	sys	sys_llseek		5	/* 4140 */
-	sys	sys_getdents		3
-	sys	sys_select		5
-	sys	sys_flock		2
-	sys	sys_msync		3
-	sys	sys_readv		3	/* 4145 */
-	sys	sys_writev		3
-	sys	sys_cacheflush		3
-	sys	sys_cachectl		3
-	sys	sys_sysmips		4
-	sys	sys_ni_syscall		0	/* 4150 */
-	sys	sys_getsid		1
-	sys	sys_fdatasync		1
-	sys	sys_sysctl		1
-	sys	sys_mlock		2
-	sys	sys_munlock		2	/* 4155 */
-	sys	sys_mlockall		1
-	sys	sys_munlockall		0
-	sys	sys_sched_setparam	2
-	sys	sys_sched_getparam	2
-	sys	sys_sched_setscheduler	3	/* 4160 */
-	sys	sys_sched_getscheduler	1
-	sys	sys_sched_yield		0
-	sys	sys_sched_get_priority_max 1
-	sys	sys_sched_get_priority_min 1
-	sys	sys_sched_rr_get_interval 2	/* 4165 */
-	sys	sys_nanosleep,		2
-	sys	sys_mremap,		5
-	sys	sys_accept		3
-	sys	sys_bind		3
-	sys	sys_connect		3	/* 4170 */
-	sys	sys_getpeername		3
-	sys	sys_getsockname		3
-	sys	sys_getsockopt		5
-	sys	sys_listen		2
-	sys	sys_recv		4	/* 4175 */
-	sys	sys_recvfrom		6
-	sys	sys_recvmsg		3
-	sys	sys_send		4
-	sys	sys_sendmsg		3
-	sys	sys_sendto		6	/* 4180 */
-	sys	sys_setsockopt		5
-	sys	sys_shutdown		2
-	sys	sys_socket		3
-	sys	sys_socketpair		4
-	sys	sys_setresuid		3	/* 4185 */
-	sys	sys_getresuid		3
-	sys	sys_ni_syscall		0	/* was sys_query_module */
-	sys	sys_poll		3
-	sys	sys_ni_syscall		0	/* was nfsservctl */
-	sys	sys_setresgid		3	/* 4190 */
-	sys	sys_getresgid		3
-	sys	sys_prctl		5
-	sys	sys_rt_sigreturn	0
-	sys	sys_rt_sigaction	4
-	sys	sys_rt_sigprocmask	4	/* 4195 */
-	sys	sys_rt_sigpending	2
-	sys	sys_rt_sigtimedwait	4
-	sys	sys_rt_sigqueueinfo	3
-	sys	sys_rt_sigsuspend	0
-	sys	sys_pread64		6	/* 4200 */
-	sys	sys_pwrite64		6
-	sys	sys_chown		3
-	sys	sys_getcwd		2
-	sys	sys_capget		2
-	sys	sys_capset		2	/* 4205 */
-	sys	sys_sigaltstack		0
-	sys	sys_sendfile		4
-	sys	sys_ni_syscall		0
-	sys	sys_ni_syscall		0
-	sys	sys_mips_mmap2		6	/* 4210 */
-	sys	sys_truncate64		4
-	sys	sys_ftruncate64		4
-	sys	sys_stat64		2
-	sys	sys_lstat64		2
-	sys	sys_fstat64		2	/* 4215 */
-	sys	sys_pivot_root		2
-	sys	sys_mincore		3
-	sys	sys_madvise		3
-	sys	sys_getdents64		3
-	sys	sys_fcntl64		3	/* 4220 */
-	sys	sys_ni_syscall		0
-	sys	sys_gettid		0
-	sys	sys_readahead		5
-	sys	sys_setxattr		5
-	sys	sys_lsetxattr		5	/* 4225 */
-	sys	sys_fsetxattr		5
-	sys	sys_getxattr		4
-	sys	sys_lgetxattr		4
-	sys	sys_fgetxattr		4
-	sys	sys_listxattr		3	/* 4230 */
-	sys	sys_llistxattr		3
-	sys	sys_flistxattr		3
-	sys	sys_removexattr		2
-	sys	sys_lremovexattr	2
-	sys	sys_fremovexattr	2	/* 4235 */
-	sys	sys_tkill		2
-	sys	sys_sendfile64		5
-	sys	sys_futex		6
+	.align	2
+	.type	sys_call_table, @object
+EXPORT(sys_call_table)
+	PTR	sys_syscall			/* 4000 */
+	PTR	sys_exit
+	PTR	__sys_fork
+	PTR	sys_read
+	PTR	sys_write
+	PTR	sys_open			/* 4005 */
+	PTR	sys_close
+	PTR	sys_waitpid
+	PTR	sys_creat
+	PTR	sys_link
+	PTR	sys_unlink			/* 4010 */
+	PTR	sys_execve
+	PTR	sys_chdir
+	PTR	sys_time
+	PTR	sys_mknod
+	PTR	sys_chmod			/* 4015 */
+	PTR	sys_lchown
+	PTR	sys_ni_syscall
+	PTR	sys_ni_syscall			/* was sys_stat */
+	PTR	sys_lseek
+	PTR	sys_getpid			/* 4020 */
+	PTR	sys_mount
+	PTR	sys_oldumount
+	PTR	sys_setuid
+	PTR	sys_getuid
+	PTR	sys_stime			/* 4025 */
+	PTR	sys_ptrace
+	PTR	sys_alarm
+	PTR	sys_ni_syscall			/* was sys_fstat */
+	PTR	sys_pause
+	PTR	sys_utime			/* 4030 */
+	PTR	sys_ni_syscall
+	PTR	sys_ni_syscall
+	PTR	sys_access
+	PTR	sys_nice
+	PTR	sys_ni_syscall			/* 4035 */
+	PTR	sys_sync
+	PTR	sys_kill
+	PTR	sys_rename
+	PTR	sys_mkdir
+	PTR	sys_rmdir			/* 4040 */
+	PTR	sys_dup
+	PTR	sysm_pipe
+	PTR	sys_times
+	PTR	sys_ni_syscall
+	PTR	sys_brk				/* 4045 */
+	PTR	sys_setgid
+	PTR	sys_getgid
+	PTR	sys_ni_syscall			/* was signal(2) */
+	PTR	sys_geteuid
+	PTR	sys_getegid			/* 4050 */
+	PTR	sys_acct
+	PTR	sys_umount
+	PTR	sys_ni_syscall
+	PTR	sys_ioctl
+	PTR	sys_fcntl			/* 4055 */
+	PTR	sys_ni_syscall
+	PTR	sys_setpgid
+	PTR	sys_ni_syscall
+	PTR	sys_olduname
+	PTR	sys_umask			/* 4060 */
+	PTR	sys_chroot
+	PTR	sys_ustat
+	PTR	sys_dup2
+	PTR	sys_getppid
+	PTR	sys_getpgrp			/* 4065 */
+	PTR	sys_setsid
+	PTR	sys_sigaction
+	PTR	sys_sgetmask
+	PTR	sys_ssetmask
+	PTR	sys_setreuid			/* 4070 */
+	PTR	sys_setregid
+	PTR	sys_sigsuspend
+	PTR	sys_sigpending
+	PTR	sys_sethostname
+	PTR	sys_setrlimit			/* 4075 */
+	PTR	sys_getrlimit
+	PTR	sys_getrusage
+	PTR	sys_gettimeofday
+	PTR	sys_settimeofday
+	PTR	sys_getgroups			/* 4080 */
+	PTR	sys_setgroups
+	PTR	sys_ni_syscall			/* old_select */
+	PTR	sys_symlink
+	PTR	sys_ni_syscall			/* was sys_lstat */
+	PTR	sys_readlink			/* 4085 */
+	PTR	sys_uselib
+	PTR	sys_swapon
+	PTR	sys_reboot
+	PTR	sys_old_readdir
+	PTR	sys_mips_mmap			/* 4090 */
+	PTR	sys_munmap
+	PTR	sys_truncate
+	PTR	sys_ftruncate
+	PTR	sys_fchmod
+	PTR	sys_fchown			/* 4095 */
+	PTR	sys_getpriority
+	PTR	sys_setpriority
+	PTR	sys_ni_syscall
+	PTR	sys_statfs
+	PTR	sys_fstatfs			/* 4100 */
+	PTR	sys_ni_syscall			/* was ioperm(2) */
+	PTR	sys_socketcall
+	PTR	sys_syslog
+	PTR	sys_setitimer
+	PTR	sys_getitimer			/* 4105 */
+	PTR	sys_newstat
+	PTR	sys_newlstat
+	PTR	sys_newfstat
+	PTR	sys_uname
+	PTR	sys_ni_syscall			/* 4110 was iopl(2) */
+	PTR	sys_vhangup
+	PTR	sys_ni_syscall			/* was sys_idle() */
+	PTR	sys_ni_syscall			/* was sys_vm86 */
+	PTR	sys_wait4
+	PTR	sys_swapoff			/* 4115 */
+	PTR	sys_sysinfo
+	PTR	sys_ipc
+	PTR	sys_fsync
+	PTR	sys_sigreturn
+	PTR	__sys_clone			/* 4120 */
+	PTR	sys_setdomainname
+	PTR	sys_newuname
+	PTR	sys_ni_syscall			/* sys_modify_ldt */
+	PTR	sys_adjtimex
+	PTR	sys_mprotect			/* 4125 */
+	PTR	sys_sigprocmask
+	PTR	sys_ni_syscall			/* was create_module */
+	PTR	sys_init_module
+	PTR	sys_delete_module
+	PTR	sys_ni_syscall			/* 4130 was get_kernel_syms */
+	PTR	sys_quotactl
+	PTR	sys_getpgid
+	PTR	sys_fchdir
+	PTR	sys_bdflush
+	PTR	sys_sysfs			/* 4135 */
+	PTR	sys_personality
+	PTR	sys_ni_syscall			/* for afs_syscall */
+	PTR	sys_setfsuid
+	PTR	sys_setfsgid
+	PTR	sys_llseek			/* 4140 */
+	PTR	sys_getdents
+	PTR	sys_select
+	PTR	sys_flock
+	PTR	sys_msync
+	PTR	sys_readv			/* 4145 */
+	PTR	sys_writev
+	PTR	sys_cacheflush
+	PTR	sys_cachectl
+	PTR	sys_sysmips
+	PTR	sys_ni_syscall			/* 4150 */
+	PTR	sys_getsid
+	PTR	sys_fdatasync
+	PTR	sys_sysctl
+	PTR	sys_mlock
+	PTR	sys_munlock			/* 4155 */
+	PTR	sys_mlockall
+	PTR	sys_munlockall
+	PTR	sys_sched_setparam
+	PTR	sys_sched_getparam
+	PTR	sys_sched_setscheduler		/* 4160 */
+	PTR	sys_sched_getscheduler
+	PTR	sys_sched_yield
+	PTR	sys_sched_get_priority_max
+	PTR	sys_sched_get_priority_min
+	PTR	sys_sched_rr_get_interval	/* 4165 */
+	PTR	sys_nanosleep
+	PTR	sys_mremap
+	PTR	sys_accept
+	PTR	sys_bind
+	PTR	sys_connect			/* 4170 */
+	PTR	sys_getpeername
+	PTR	sys_getsockname
+	PTR	sys_getsockopt
+	PTR	sys_listen
+	PTR	sys_recv			/* 4175 */
+	PTR	sys_recvfrom
+	PTR	sys_recvmsg
+	PTR	sys_send
+	PTR	sys_sendmsg
+	PTR	sys_sendto			/* 4180 */
+	PTR	sys_setsockopt
+	PTR	sys_shutdown
+	PTR	sys_socket
+	PTR	sys_socketpair
+	PTR	sys_setresuid			/* 4185 */
+	PTR	sys_getresuid
+	PTR	sys_ni_syscall			/* was sys_query_module */
+	PTR	sys_poll
+	PTR	sys_ni_syscall			/* was nfsservctl */
+	PTR	sys_setresgid			/* 4190 */
+	PTR	sys_getresgid
+	PTR	sys_prctl
+	PTR	sys_rt_sigreturn
+	PTR	sys_rt_sigaction
+	PTR	sys_rt_sigprocmask		/* 4195 */
+	PTR	sys_rt_sigpending
+	PTR	sys_rt_sigtimedwait
+	PTR	sys_rt_sigqueueinfo
+	PTR	sys_rt_sigsuspend
+	PTR	sys_pread64			/* 4200 */
+	PTR	sys_pwrite64
+	PTR	sys_chown
+	PTR	sys_getcwd
+	PTR	sys_capget
+	PTR	sys_capset			/* 4205 */
+	PTR	sys_sigaltstack
+	PTR	sys_sendfile
+	PTR	sys_ni_syscall
+	PTR	sys_ni_syscall
+	PTR	sys_mips_mmap2			/* 4210 */
+	PTR	sys_truncate64
+	PTR	sys_ftruncate64
+	PTR	sys_stat64
+	PTR	sys_lstat64
+	PTR	sys_fstat64			/* 4215 */
+	PTR	sys_pivot_root
+	PTR	sys_mincore
+	PTR	sys_madvise
+	PTR	sys_getdents64
+	PTR	sys_fcntl64			/* 4220 */
+	PTR	sys_ni_syscall
+	PTR	sys_gettid
+	PTR	sys_readahead
+	PTR	sys_setxattr
+	PTR	sys_lsetxattr			/* 4225 */
+	PTR	sys_fsetxattr
+	PTR	sys_getxattr
+	PTR	sys_lgetxattr
+	PTR	sys_fgetxattr
+	PTR	sys_listxattr			/* 4230 */
+	PTR	sys_llistxattr
+	PTR	sys_flistxattr
+	PTR	sys_removexattr
+	PTR	sys_lremovexattr
+	PTR	sys_fremovexattr		/* 4235 */
+	PTR	sys_tkill
+	PTR	sys_sendfile64
+	PTR	sys_futex
 #ifdef CONFIG_MIPS_MT_FPAFF
 	/*
 	 * For FPU affinity scheduling on MIPS MT processors, we need to
@@ -466,132 +449,117 @@ einval: li	v0, -ENOSYS
 	 * these hooks for the 32-bit kernel - there is no MIPS64 MT processor
 	 * atm.
 	 */
-	sys	mipsmt_sys_sched_setaffinity	3
-	sys	mipsmt_sys_sched_getaffinity	3
+	PTR	mipsmt_sys_sched_setaffinity
+	PTR	mipsmt_sys_sched_getaffinity
 #else
-	sys	sys_sched_setaffinity	3
-	sys	sys_sched_getaffinity	3	/* 4240 */
+	PTR	sys_sched_setaffinity
+	PTR	sys_sched_getaffinity		/* 4240 */
 #endif /* CONFIG_MIPS_MT_FPAFF */
-	sys	sys_io_setup		2
-	sys	sys_io_destroy		1
-	sys	sys_io_getevents	5
-	sys	sys_io_submit		3
-	sys	sys_io_cancel		3	/* 4245 */
-	sys	sys_exit_group		1
-	sys	sys_lookup_dcookie	4
-	sys	sys_epoll_create	1
-	sys	sys_epoll_ctl		4
-	sys	sys_epoll_wait		4	/* 4250 */
-	sys	sys_remap_file_pages	5
-	sys	sys_set_tid_address	1
-	sys	sys_restart_syscall	0
-	sys	sys_fadvise64_64	7
-	sys	sys_statfs64		3	/* 4255 */
-	sys	sys_fstatfs64		2
-	sys	sys_timer_create	3
-	sys	sys_timer_settime	4
-	sys	sys_timer_gettime	2
-	sys	sys_timer_getoverrun	1	/* 4260 */
-	sys	sys_timer_delete	1
-	sys	sys_clock_settime	2
-	sys	sys_clock_gettime	2
-	sys	sys_clock_getres	2
-	sys	sys_clock_nanosleep	4	/* 4265 */
-	sys	sys_tgkill		3
-	sys	sys_utimes		2
-	sys	sys_mbind		4
-	sys	sys_ni_syscall		0	/* sys_get_mempolicy */
-	sys	sys_ni_syscall		0	/* 4270 sys_set_mempolicy */
-	sys	sys_mq_open		4
-	sys	sys_mq_unlink		1
-	sys	sys_mq_timedsend	5
-	sys	sys_mq_timedreceive	5
-	sys	sys_mq_notify		2	/* 4275 */
-	sys	sys_mq_getsetattr	3
-	sys	sys_ni_syscall		0	/* sys_vserver */
-	sys	sys_waitid		5
-	sys	sys_ni_syscall		0	/* available, was setaltroot */
-	sys	sys_add_key		5	/* 4280 */
-	sys	sys_request_key		4
-	sys	sys_keyctl		5
-	sys	sys_set_thread_area	1
-	sys	sys_inotify_init	0
-	sys	sys_inotify_add_watch	3	/* 4285 */
-	sys	sys_inotify_rm_watch	2
-	sys	sys_migrate_pages	4
-	sys	sys_openat		4
-	sys	sys_mkdirat		3
-	sys	sys_mknodat		4	/* 4290 */
-	sys	sys_fchownat		5
-	sys	sys_futimesat		3
-	sys	sys_fstatat64		4
-	sys	sys_unlinkat		3
-	sys	sys_renameat		4	/* 4295 */
-	sys	sys_linkat		5
-	sys	sys_symlinkat		3
-	sys	sys_readlinkat		4
-	sys	sys_fchmodat		3
-	sys	sys_faccessat		3	/* 4300 */
-	sys	sys_pselect6		6
-	sys	sys_ppoll		5
-	sys	sys_unshare		1
-	sys	sys_splice		6
-	sys	sys_sync_file_range	7	/* 4305 */
-	sys	sys_tee			4
-	sys	sys_vmsplice		4
-	sys	sys_move_pages		6
-	sys	sys_set_robust_list	2
-	sys	sys_get_robust_list	3	/* 4310 */
-	sys	sys_kexec_load		4
-	sys	sys_getcpu		3
-	sys	sys_epoll_pwait		6
-	sys	sys_ioprio_set		3
-	sys	sys_ioprio_get		2	/* 4315 */
-	sys	sys_utimensat		4
-	sys	sys_signalfd		3
-	sys	sys_ni_syscall		0	/* was timerfd */
-	sys	sys_eventfd		1
-	sys	sys_fallocate		6	/* 4320 */
-	sys	sys_timerfd_create	2
-	sys	sys_timerfd_gettime	2
-	sys	sys_timerfd_settime	4
-	sys	sys_signalfd4		4
-	sys	sys_eventfd2		2	/* 4325 */
-	sys	sys_epoll_create1	1
-	sys	sys_dup3		3
-	sys	sys_pipe2		2
-	sys	sys_inotify_init1	1
-	sys	sys_preadv		6	/* 4330 */
-	sys	sys_pwritev		6
-	sys	sys_rt_tgsigqueueinfo	4
-	sys	sys_perf_event_open	5
-	sys	sys_accept4		4
-	sys	sys_recvmmsg		5	/* 4335 */
-	sys	sys_fanotify_init	2
-	sys	sys_fanotify_mark	6
-	sys	sys_prlimit64		4
-	sys	sys_name_to_handle_at	5
-	sys	sys_open_by_handle_at	3	/* 4340 */
-	sys	sys_clock_adjtime	2
-	sys	sys_syncfs		1
-	sys	sys_sendmmsg		4
-	sys	sys_setns		2
-	sys	sys_process_vm_readv	6	/* 4345 */
-	sys	sys_process_vm_writev	6
-	sys	sys_kcmp		5
-	sys	sys_finit_module	3
-	.endm
-
-	/* We pre-compute the number of _instruction_ bytes needed to
-	   load or store the arguments 6-8. Negative values are ignored. */
-
-	.macro	sys function, nargs
-	PTR	\function
-	LONG	(\nargs << 2) - (5 << 2)
-	.endm
-
-	.align	3
-	.type	sys_call_table,@object
-EXPORT(sys_call_table)
-	syscalltable
-	.size	sys_call_table, . - sys_call_table
+	PTR	sys_io_setup
+	PTR	sys_io_destroy
+	PTR	sys_io_getevents
+	PTR	sys_io_submit
+	PTR	sys_io_cancel			/* 4245 */
+	PTR	sys_exit_group
+	PTR	sys_lookup_dcookie
+	PTR	sys_epoll_create
+	PTR	sys_epoll_ctl
+	PTR	sys_epoll_wait			/* 4250 */
+	PTR	sys_remap_file_pages
+	PTR	sys_set_tid_address
+	PTR	sys_restart_syscall
+	PTR	sys_fadvise64_64
+	PTR	sys_statfs64			/* 4255 */
+	PTR	sys_fstatfs64
+	PTR	sys_timer_create
+	PTR	sys_timer_settime
+	PTR	sys_timer_gettime
+	PTR	sys_timer_getoverrun		/* 4260 */
+	PTR	sys_timer_delete
+	PTR	sys_clock_settime
+	PTR	sys_clock_gettime
+	PTR	sys_clock_getres
+	PTR	sys_clock_nanosleep		/* 4265 */
+	PTR	sys_tgkill
+	PTR	sys_utimes
+	PTR	sys_mbind
+	PTR	sys_ni_syscall			/* sys_get_mempolicy */
+	PTR	sys_ni_syscall			/* 4270 sys_set_mempolicy */
+	PTR	sys_mq_open
+	PTR	sys_mq_unlink
+	PTR	sys_mq_timedsend
+	PTR	sys_mq_timedreceive
+	PTR	sys_mq_notify			/* 4275 */
+	PTR	sys_mq_getsetattr
+	PTR	sys_ni_syscall			/* sys_vserver */
+	PTR	sys_waitid
+	PTR	sys_ni_syscall			/* available, was setaltroot */
+	PTR	sys_add_key			/* 4280 */
+	PTR	sys_request_key
+	PTR	sys_keyctl
+	PTR	sys_set_thread_area
+	PTR	sys_inotify_init
+	PTR	sys_inotify_add_watch		/* 4285 */
+	PTR	sys_inotify_rm_watch
+	PTR	sys_migrate_pages
+	PTR	sys_openat
+	PTR	sys_mkdirat
+	PTR	sys_mknodat			/* 4290 */
+	PTR	sys_fchownat
+	PTR	sys_futimesat
+	PTR	sys_fstatat64
+	PTR	sys_unlinkat
+	PTR	sys_renameat			/* 4295 */
+	PTR	sys_linkat
+	PTR	sys_symlinkat
+	PTR	sys_readlinkat
+	PTR	sys_fchmodat
+	PTR	sys_faccessat			/* 4300 */
+	PTR	sys_pselect6
+	PTR	sys_ppoll
+	PTR	sys_unshare
+	PTR	sys_splice
+	PTR	sys_sync_file_range		/* 4305 */
+	PTR	sys_tee
+	PTR	sys_vmsplice
+	PTR	sys_move_pages
+	PTR	sys_set_robust_list
+	PTR	sys_get_robust_list		/* 4310 */
+	PTR	sys_kexec_load
+	PTR	sys_getcpu
+	PTR	sys_epoll_pwait
+	PTR	sys_ioprio_set
+	PTR	sys_ioprio_get			/* 4315 */
+	PTR	sys_utimensat
+	PTR	sys_signalfd
+	PTR	sys_ni_syscall			/* was timerfd */
+	PTR	sys_eventfd
+	PTR	sys_fallocate			/* 4320 */
+	PTR	sys_timerfd_create
+	PTR	sys_timerfd_gettime
+	PTR	sys_timerfd_settime
+	PTR	sys_signalfd4
+	PTR	sys_eventfd2			/* 4325 */
+	PTR	sys_epoll_create1
+	PTR	sys_dup3
+	PTR	sys_pipe2
+	PTR	sys_inotify_init1
+	PTR	sys_preadv			/* 4330 */
+	PTR	sys_pwritev
+	PTR	sys_rt_tgsigqueueinfo
+	PTR	sys_perf_event_open
+	PTR	sys_accept4
+	PTR	sys_recvmmsg			/* 4335 */
+	PTR	sys_fanotify_init
+	PTR	sys_fanotify_mark
+	PTR	sys_prlimit64
+	PTR	sys_name_to_handle_at
+	PTR	sys_open_by_handle_at		/* 4340 */
+	PTR	sys_clock_adjtime
+	PTR	sys_syncfs
+	PTR	sys_sendmmsg
+	PTR	sys_setns
+	PTR	sys_process_vm_readv		/* 4345 */
+	PTR	sys_process_vm_writev
+	PTR	sys_kcmp
+	PTR	sys_finit_module
-- 
cgit 


From bc3d22c13e8b1ae0be016c67406787231f9e6548 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Tue, 17 Jul 2012 19:43:58 +0200
Subject: MIPS: ptrace: Use tracehook helpers.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/ptrace.c | 46 +++++-----------------------------------------
 1 file changed, 5 insertions(+), 41 deletions(-)

diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 8ae1ebef8b71..7a5d7ac6b0d4 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -24,6 +24,7 @@
 #include <linux/smp.h>
 #include <linux/user.h>
 #include <linux/security.h>
+#include <linux/tracehook.h>
 #include <linux/audit.h>
 #include <linux/seccomp.h>
 
@@ -540,28 +541,9 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
 	/* do the secure computing check first */
 	secure_computing_strict(regs->regs[2]);
 
-	if (!(current->ptrace & PT_PTRACED))
-		goto out;
+	if (test_thread_flag(TIF_SYSCALL_TRACE))
+		ptrace_report_syscall(regs);
 
-	if (!test_thread_flag(TIF_SYSCALL_TRACE))
-		goto out;
-
-	/* The 0x80 provides a way for the tracing parent to distinguish
-	   between a syscall stop and SIGTRAP delivery */
-	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) ?
-				 0x80 : 0));
-
-	/*
-	 * this isn't the same as continuing with a signal, but it will do
-	 * for normal use.  strace only continues with a signal if the
-	 * stopping signal is not SIGTRAP.  -brl
-	 */
-	if (current->exit_code) {
-		send_sig(current->exit_code, current, 1);
-		current->exit_code = 0;
-	}
-
-out:
 	audit_syscall_entry(audit_arch(), regs->regs[2],
 			    regs->regs[4], regs->regs[5],
 			    regs->regs[6], regs->regs[7]);
@@ -582,26 +564,8 @@ asmlinkage void syscall_trace_leave(struct pt_regs *regs)
 
 	audit_syscall_exit(regs);
 
-	if (!(current->ptrace & PT_PTRACED))
-		return;
-
-	if (!test_thread_flag(TIF_SYSCALL_TRACE))
-		return;
-
-	/* The 0x80 provides a way for the tracing parent to distinguish
-	   between a syscall stop and SIGTRAP delivery */
-	ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) ?
-				 0x80 : 0));
-
-	/*
-	 * this isn't the same as continuing with a signal, but it will do
-	 * for normal use.  strace only continues with a signal if the
-	 * stopping signal is not SIGTRAP.  -brl
-	 */
-	if (current->exit_code) {
-		send_sig(current->exit_code, current, 1);
-		current->exit_code = 0;
-	}
+	if (test_thread_flag(TIF_SYSCALL_TRACE))
+		tracehook_report_syscall_exit(regs, 0);
 
 	user_enter();
 }
-- 
cgit 


From 7aeb753b53538bc3b4377022db7aa3ae42653ce3 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Thu, 2 Aug 2012 14:44:11 +0200
Subject: MIPS: Implement task_user_regset_view.

There are no users yet of task_user_regset_view. yet; users will be
implemented rsp activated in subsequent commits.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/ptrace.c | 129 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 129 insertions(+)

diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 7a5d7ac6b0d4..83a6a464db70 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -16,11 +16,13 @@
  */
 #include <linux/compiler.h>
 #include <linux/context_tracking.h>
+#include <linux/elf.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
 #include <linux/errno.h>
 #include <linux/ptrace.h>
+#include <linux/regset.h>
 #include <linux/smp.h>
 #include <linux/user.h>
 #include <linux/security.h>
@@ -256,6 +258,133 @@ int ptrace_set_watch_regs(struct task_struct *child,
 	return 0;
 }
 
+/* regset get/set implementations */
+
+static int gpr_get(struct task_struct *target,
+		   const struct user_regset *regset,
+		   unsigned int pos, unsigned int count,
+		   void *kbuf, void __user *ubuf)
+{
+	struct pt_regs *regs = task_pt_regs(target);
+
+	return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+				   regs, 0, sizeof(*regs));
+}
+
+static int gpr_set(struct task_struct *target,
+		   const struct user_regset *regset,
+		   unsigned int pos, unsigned int count,
+		   const void *kbuf, const void __user *ubuf)
+{
+	struct pt_regs newregs;
+	int ret;
+
+	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+				 &newregs,
+				 0, sizeof(newregs));
+	if (ret)
+		return ret;
+
+	*task_pt_regs(target) = newregs;
+
+	return 0;
+}
+
+static int fpr_get(struct task_struct *target,
+		   const struct user_regset *regset,
+		   unsigned int pos, unsigned int count,
+		   void *kbuf, void __user *ubuf)
+{
+	return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+				   &target->thread.fpu,
+				   0, sizeof(elf_fpregset_t));
+	/* XXX fcr31  */
+}
+
+static int fpr_set(struct task_struct *target,
+		   const struct user_regset *regset,
+		   unsigned int pos, unsigned int count,
+		   const void *kbuf, const void __user *ubuf)
+{
+	return user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+				  &target->thread.fpu,
+				  0, sizeof(elf_fpregset_t));
+	/* XXX fcr31  */
+}
+
+enum mips_regset {
+	REGSET_GPR,
+	REGSET_FPR,
+};
+
+static const struct user_regset mips_regsets[] = {
+	[REGSET_GPR] = {
+		.core_note_type	= NT_PRSTATUS,
+		.n		= ELF_NGREG,
+		.size		= sizeof(unsigned int),
+		.align		= sizeof(unsigned int),
+		.get		= gpr_get,
+		.set		= gpr_set,
+	},
+	[REGSET_FPR] = {
+		.core_note_type	= NT_PRFPREG,
+		.n		= ELF_NFPREG,
+		.size		= sizeof(elf_fpreg_t),
+		.align		= sizeof(elf_fpreg_t),
+		.get		= fpr_get,
+		.set		= fpr_set,
+	},
+};
+
+static const struct user_regset_view user_mips_view = {
+	.name		= "mips",
+	.e_machine	= ELF_ARCH,
+	.ei_osabi	= ELF_OSABI,
+	.regsets	= mips_regsets,
+	.n		= ARRAY_SIZE(mips_regsets),
+};
+
+static const struct user_regset mips64_regsets[] = {
+	[REGSET_GPR] = {
+		.core_note_type	= NT_PRSTATUS,
+		.n		= ELF_NGREG,
+		.size		= sizeof(unsigned long),
+		.align		= sizeof(unsigned long),
+		.get		= gpr_get,
+		.set		= gpr_set,
+	},
+	[REGSET_FPR] = {
+		.core_note_type	= NT_PRFPREG,
+		.n		= ELF_NFPREG,
+		.size		= sizeof(elf_fpreg_t),
+		.align		= sizeof(elf_fpreg_t),
+		.get		= fpr_get,
+		.set		= fpr_set,
+	},
+};
+
+static const struct user_regset_view user_mips64_view = {
+	.name		= "mips",
+	.e_machine	= ELF_ARCH,
+	.ei_osabi	= ELF_OSABI,
+	.regsets	= mips64_regsets,
+	.n		= ARRAY_SIZE(mips_regsets),
+};
+
+const struct user_regset_view *task_user_regset_view(struct task_struct *task)
+{
+#ifdef CONFIG_32BIT
+	return &user_mips_view;
+#endif
+
+#ifdef CONFIG_MIPS32_O32
+		if (test_thread_flag(TIF_32BIT_REGS))
+			return &user_mips_view;
+#endif
+
+	return &user_mips64_view;
+}
+
 long arch_ptrace(struct task_struct *child, long request,
 		 unsigned long addr, unsigned long data)
 {
-- 
cgit 


From 6a9c001b7ec3ae6639f97a5b7ea4b0ea35053b18 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Thu, 2 Aug 2012 15:18:32 +0200
Subject: MIPS: Switch ELF core dumper to use regsets.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/include/asm/elf.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h
index cf3ae2480b1d..a66359ef4ece 100644
--- a/arch/mips/include/asm/elf.h
+++ b/arch/mips/include/asm/elf.h
@@ -331,6 +331,7 @@ extern int dump_task_fpu(struct task_struct *, elf_fpregset_t *);
 #define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs)			\
 	dump_task_fpu(tsk, elf_fpregs)
 
+#define CORE_DUMP_USE_REGSET
 #define ELF_EXEC_PAGESIZE	PAGE_SIZE
 
 /* This yields a mask that user programs can use to figure out what
-- 
cgit 


From c0ff3c53d4f99f5e0ac5fc30ad77f26159b347e0 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Fri, 17 Aug 2012 08:22:04 +0200
Subject: MIPS: Enable HAVE_ARCH_TRACEHOOK.

This enables /proc/<pid>/syscall and the ptrace PTRACE_GETREGSET and
PTRACE_SETREGSET operations.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig               |  1 +
 arch/mips/include/asm/ptrace.h  | 14 ++++++++-
 arch/mips/include/asm/syscall.h | 67 +++++++++++++++++++++++++++++++++++++++++
 3 files changed, 81 insertions(+), 1 deletion(-)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index e70cf31c6ba3..d523b5489929 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -8,6 +8,7 @@ config MIPS
 	select HAVE_PERF_EVENTS
 	select PERF_USE_VMALLOC
 	select HAVE_ARCH_KGDB
+	select HAVE_ARCH_TRACEHOOK
 	select ARCH_HAVE_CUSTOM_GPIO_H
 	select HAVE_FUNCTION_TRACER
 	select HAVE_FUNCTION_TRACE_MCOUNT_TEST
diff --git a/arch/mips/include/asm/ptrace.h b/arch/mips/include/asm/ptrace.h
index 5e6cd0947393..7bba9da110af 100644
--- a/arch/mips/include/asm/ptrace.h
+++ b/arch/mips/include/asm/ptrace.h
@@ -81,7 +81,6 @@ static inline long regs_return_value(struct pt_regs *regs)
 
 #define instruction_pointer(regs) ((regs)->cp0_epc)
 #define profile_pc(regs) instruction_pointer(regs)
-#define user_stack_pointer(r) ((r)->regs[29])
 
 extern asmlinkage void syscall_trace_enter(struct pt_regs *regs);
 extern asmlinkage void syscall_trace_leave(struct pt_regs *regs);
@@ -100,4 +99,17 @@ static inline void die_if_kernel(const char *str, struct pt_regs *regs)
 	(struct pt_regs *)((sp | (THREAD_SIZE - 1)) + 1 - 32) - 1;	\
 })
 
+/* Helpers for working with the user stack pointer */
+
+static inline unsigned long user_stack_pointer(struct pt_regs *regs)
+{
+	return regs->regs[29];
+}
+
+static inline void user_stack_pointer_set(struct pt_regs *regs,
+	unsigned long val)
+{
+	regs->regs[29] = val;
+}
+
 #endif /* _ASM_PTRACE_H */
diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index ab5effdc935d..00f2ffaaf293 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -1,14 +1,81 @@
 /*
+ * Access to user system call parameters and results
+ *
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
  *
+ * See asm-generic/syscall.h for descriptions of what we must do here.
+ *
  * Copyright (C) 2012 Ralf Baechle <ralf@linux-mips.org>
  */
 
 #ifndef __ASM_MIPS_SYSCALL_H
 #define __ASM_MIPS_SYSCALL_H
 
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/uaccess.h>
+#include <asm/ptrace.h>
+
+static inline long syscall_get_nr(struct task_struct *task,
+				  struct pt_regs *regs)
+{
+	return regs->regs[2];
+}
+
+static inline unsigned long mips_get_syscall_arg(unsigned long *arg,
+	struct task_struct *task, struct pt_regs *regs, unsigned int n)
+{
+	unsigned long usp = regs->regs[29];
+
+	switch (n) {
+	case 0: case 1: case 2: case 3:
+		*arg = regs->regs[4 + n];
+
+		return 0;
+
+#ifdef CONFIG_32BIT
+	case 4: case 5: case 6: case 7:
+		return get_user(*arg, (int *)usp + 4 * n);
+#endif
+
+#ifdef CONFIG_64BIT
+	case 4: case 5: case 6: case 7:
+#ifdef CONFIG_MIPS32_O32
+		if (test_thread_flag(TIF_32BIT_REGS))
+			return get_user(*arg, (int *)usp + 4 * n);
+		else
+#endif
+			*arg = regs->regs[4 + n];
+
+		return 0;
+#endif
+
+	default:
+		BUG();
+	}
+}
+
+static inline void syscall_get_arguments(struct task_struct *task,
+					 struct pt_regs *regs,
+					 unsigned int i, unsigned int n,
+					 unsigned long *args)
+{
+	unsigned long arg;
+	int ret;
+
+	while (n--)
+		ret |= mips_get_syscall_arg(&arg, task, regs, i++);
+
+	/*
+	 * No way to communicate an error because this is a void function.
+	 */
+#if 0
+	return ret;
+#endif
+}
+
 extern const unsigned long sys_call_table[];
 extern const unsigned long sys32_call_table[];
 extern const unsigned long sysn32_call_table[];
-- 
cgit 


From bec9b2b2c164455e2cd1103c9059d4f8e5926416 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Wed, 26 Sep 2012 20:16:47 +0200
Subject: MIPS: Move audit_arch() helper function to __syscall_get_arch().

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/include/asm/syscall.h | 14 ++++++++++++++
 arch/mips/kernel/ptrace.c       | 16 +++-------------
 2 files changed, 17 insertions(+), 13 deletions(-)

diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index 00f2ffaaf293..087df5f26f86 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -13,6 +13,8 @@
 #ifndef __ASM_MIPS_SYSCALL_H
 #define __ASM_MIPS_SYSCALL_H
 
+#include <linux/audit.h>
+#include <linux/elf-em.h>
 #include <linux/kernel.h>
 #include <linux/sched.h>
 #include <linux/uaccess.h>
@@ -80,4 +82,16 @@ extern const unsigned long sys_call_table[];
 extern const unsigned long sys32_call_table[];
 extern const unsigned long sysn32_call_table[];
 
+static inline int __syscall_get_arch(void)
+{
+	int arch = EM_MIPS;
+#ifdef CONFIG_64BIT
+	arch |=  __AUDIT_ARCH_64BIT;
+#endif
+#if defined(__LITTLE_ENDIAN)
+	arch |=  __AUDIT_ARCH_LE;
+#endif
+	return arch;
+}
+
 #endif	/* __ASM_MIPS_SYSCALL_H */
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 83a6a464db70..7341318dd2d8 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -38,6 +38,7 @@
 #include <asm/mipsmtregs.h>
 #include <asm/pgtable.h>
 #include <asm/page.h>
+#include <asm/syscall.h>
 #include <asm/uaccess.h>
 #include <asm/bootinfo.h>
 #include <asm/reg.h>
@@ -647,18 +648,6 @@ long arch_ptrace(struct task_struct *child, long request,
 	return ret;
 }
 
-static inline int audit_arch(void)
-{
-	int arch = EM_MIPS;
-#ifdef CONFIG_64BIT
-	arch |=	 __AUDIT_ARCH_64BIT;
-#endif
-#if defined(__LITTLE_ENDIAN)
-	arch |=	 __AUDIT_ARCH_LE;
-#endif
-	return arch;
-}
-
 /*
  * Notification of system call entry/exit
  * - triggered by current->work.syscall_trace
@@ -673,7 +662,8 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
 	if (test_thread_flag(TIF_SYSCALL_TRACE))
 		ptrace_report_syscall(regs);
 
-	audit_syscall_entry(audit_arch(), regs->regs[2],
+	audit_syscall_entry(__syscall_get_arch(),
+			    regs->regs[2],
 			    regs->regs[4], regs->regs[5],
 			    regs->regs[6], regs->regs[7]);
 }
-- 
cgit 


From 0dfa95aaa817eec8473abf5465eae135b1cf1138 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Wed, 26 Sep 2012 21:30:47 +0200
Subject: MIPS: ptrace: Switch syscall reporting to
 tracehook_report_syscall_entry().

Set ret just so __must_check is satisfied but don't use the variable for
anything yet.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/ptrace.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 7341318dd2d8..b996efcccc11 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -654,13 +654,15 @@ long arch_ptrace(struct task_struct *child, long request,
  */
 asmlinkage void syscall_trace_enter(struct pt_regs *regs)
 {
+	long ret = 0;
 	user_exit();
 
 	/* do the secure computing check first */
 	secure_computing_strict(regs->regs[2]);
 
-	if (test_thread_flag(TIF_SYSCALL_TRACE))
-		ptrace_report_syscall(regs);
+	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
+	    tracehook_report_syscall_entry(regs))
+		ret = -1;
 
 	audit_syscall_entry(__syscall_get_arch(),
 			    regs->regs[2],
-- 
cgit 


From 1d7bf993e0731b4ac790667c196b2a2d787f95c3 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Fri, 6 Sep 2013 20:24:48 +0200
Subject: MIPS: ftrace: Add support for syscall tracepoints.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/Kconfig                   |  1 +
 arch/mips/include/asm/syscall.h     | 19 +++++++++++++++++++
 arch/mips/include/asm/thread_info.h |  9 ++++++---
 arch/mips/include/asm/unistd.h      |  7 +++++++
 arch/mips/kernel/ptrace.c           | 10 ++++++++++
 5 files changed, 43 insertions(+), 3 deletions(-)

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index d523b5489929..d2440478787b 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -19,6 +19,7 @@ config MIPS
 	select HAVE_KPROBES
 	select HAVE_KRETPROBES
 	select HAVE_DEBUG_KMEMLEAK
+	select HAVE_SYSCALL_TRACEPOINTS
 	select ARCH_BINFMT_ELF_RANDOMIZE_PIE
 	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT
 	select RTC_LIB if !MACH_LOONGSON
diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index 087df5f26f86..81c89132c59d 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -59,6 +59,25 @@ static inline unsigned long mips_get_syscall_arg(unsigned long *arg,
 	}
 }
 
+static inline long syscall_get_return_value(struct task_struct *task,
+					    struct pt_regs *regs)
+{
+	return regs->regs[2];
+}
+
+static inline void syscall_set_return_value(struct task_struct *task,
+					    struct pt_regs *regs,
+					    int error, long val)
+{
+	if (error) {
+		regs->regs[2] = -error;
+		regs->regs[7] = -1;
+	} else {
+		regs->regs[2] = val;
+		regs->regs[7] = 0;
+	}
+}
+
 static inline void syscall_get_arguments(struct task_struct *task,
 					 struct pt_regs *regs,
 					 unsigned int i, unsigned int n,
diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
index e0c8cf3b16ff..f9b24bfbdbae 100644
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -116,6 +116,7 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_32BIT_ADDR		23	/* 32-bit address space (o32/n32) */
 #define TIF_FPUBOUND		24	/* thread bound to FPU-full CPU set */
 #define TIF_LOAD_WATCH		25	/* If set, load watch registers */
+#define TIF_SYSCALL_TRACEPOINT	26	/* syscall tracepoint instrumentation */
 #define TIF_SYSCALL_TRACE	31	/* syscall trace active */
 
 #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
@@ -132,20 +133,22 @@ static inline struct thread_info *current_thread_info(void)
 #define _TIF_32BIT_ADDR		(1<<TIF_32BIT_ADDR)
 #define _TIF_FPUBOUND		(1<<TIF_FPUBOUND)
 #define _TIF_LOAD_WATCH		(1<<TIF_LOAD_WATCH)
+#define _TIF_SYSCALL_TRACEPOINT	(1<<TIF_SYSCALL_TRACEPOINT)
 
 #define _TIF_WORK_SYSCALL_ENTRY	(_TIF_NOHZ | _TIF_SYSCALL_TRACE |	\
-				 _TIF_SYSCALL_AUDIT)
+				 _TIF_SYSCALL_AUDIT | _TIF_SYSCALL_TRACEPOINT)
 
 /* work to do in syscall_trace_leave() */
 #define _TIF_WORK_SYSCALL_EXIT	(_TIF_NOHZ | _TIF_SYSCALL_TRACE |	\
-				 _TIF_SYSCALL_AUDIT)
+				 _TIF_SYSCALL_AUDIT | _TIF_SYSCALL_TRACEPOINT)
 
 /* work to do on interrupt/exception return */
 #define _TIF_WORK_MASK		\
 	(_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_NOTIFY_RESUME)
 /* work to do on any return to u-space */
 #define _TIF_ALLWORK_MASK	(_TIF_NOHZ | _TIF_WORK_MASK |		\
-				 _TIF_WORK_SYSCALL_EXIT)
+				 _TIF_WORK_SYSCALL_EXIT |		\
+				 _TIF_SYSCALL_TRACEPOINT)
 
 /*
  * We stash processor id into a COP0 register to retrieve it fast
diff --git a/arch/mips/include/asm/unistd.h b/arch/mips/include/asm/unistd.h
index 63c9c886173a..4d3b92886665 100644
--- a/arch/mips/include/asm/unistd.h
+++ b/arch/mips/include/asm/unistd.h
@@ -14,6 +14,13 @@
 
 #include <uapi/asm/unistd.h>
 
+#ifdef CONFIG_MIPS32_N32
+#define NR_syscalls  (__NR_N32_Linux + __NR_N32_Linux_syscalls)
+#elif defined(CONFIG_64BIT)
+#define NR_syscalls  (__NR_64_Linux + __NR_64_Linux_syscalls)
+#else
+#define NR_syscalls  (__NR_O32_Linux + __NR_O32_Linux_syscalls)
+#endif
 
 #ifndef __ASSEMBLY__
 
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index b996efcccc11..b52e1d2b33e0 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -29,6 +29,7 @@
 #include <linux/tracehook.h>
 #include <linux/audit.h>
 #include <linux/seccomp.h>
+#include <linux/ftrace.h>
 
 #include <asm/byteorder.h>
 #include <asm/cpu.h>
@@ -43,6 +44,9 @@
 #include <asm/bootinfo.h>
 #include <asm/reg.h>
 
+#define CREATE_TRACE_POINTS
+#include <trace/events/syscalls.h>
+
 /*
  * Called by kernel/ptrace.c when detaching..
  *
@@ -664,6 +668,9 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
 	    tracehook_report_syscall_entry(regs))
 		ret = -1;
 
+	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
+		trace_sys_enter(regs, regs->regs[2]);
+
 	audit_syscall_entry(__syscall_get_arch(),
 			    regs->regs[2],
 			    regs->regs[4], regs->regs[5],
@@ -685,6 +692,9 @@ asmlinkage void syscall_trace_leave(struct pt_regs *regs)
 
 	audit_syscall_exit(regs);
 
+	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
+		trace_sys_exit(regs, regs->regs[2]);
+
 	if (test_thread_flag(TIF_SYSCALL_TRACE))
 		tracehook_report_syscall_exit(regs, 0);
 
-- 
cgit 


From a6e95a86e02e4a60b4355c84d19dba2baf3d87ba Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Thu, 26 Sep 2013 18:16:05 +0200
Subject: MIPS: PowerTV: Remove support code.

Nobody seems to care about this platform anymore and my attempts to find
somebody willing to provide some tlc for PowerTV have failed so far.

So let's nuke the bloody thing.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/5910/
---
 arch/mips/Kbuild.platforms                         |   1 -
 arch/mips/Kconfig                                  |  21 -
 arch/mips/configs/powertv_defconfig                | 136 -----
 arch/mips/include/asm/mach-powertv/asic.h          | 120 -----
 arch/mips/include/asm/mach-powertv/asic_reg_map.h  |  90 ----
 arch/mips/include/asm/mach-powertv/asic_regs.h     | 125 -----
 .../asm/mach-powertv/cpu-feature-overrides.h       |  60 ---
 arch/mips/include/asm/mach-powertv/dma-coherence.h | 107 ----
 arch/mips/include/asm/mach-powertv/interrupts.h    | 253 ---------
 arch/mips/include/asm/mach-powertv/ioremap.h       | 167 ------
 arch/mips/include/asm/mach-powertv/irq.h           |  25 -
 arch/mips/include/asm/mach-powertv/powertv-clock.h |  29 -
 arch/mips/include/asm/mach-powertv/war.h           |  27 -
 arch/mips/kernel/Makefile                          |   1 -
 arch/mips/kernel/csrc-powertv.c                    | 151 ------
 arch/mips/powertv/Kconfig                          |  12 -
 arch/mips/powertv/Makefile                         |  29 -
 arch/mips/powertv/Platform                         |   7 -
 arch/mips/powertv/asic/Makefile                    |  21 -
 arch/mips/powertv/asic/asic-calliope.c             | 101 ----
 arch/mips/powertv/asic/asic-cronus.c               | 101 ----
 arch/mips/powertv/asic/asic-gaia.c                 |  96 ----
 arch/mips/powertv/asic/asic-zeus.c                 | 101 ----
 arch/mips/powertv/asic/asic_devices.c              | 549 -------------------
 arch/mips/powertv/asic/asic_int.c                  | 125 -----
 arch/mips/powertv/asic/irq_asic.c                  | 115 ----
 arch/mips/powertv/asic/prealloc-calliope.c         | 385 --------------
 arch/mips/powertv/asic/prealloc-cronus.c           | 340 ------------
 arch/mips/powertv/asic/prealloc-cronuslite.c       | 174 ------
 arch/mips/powertv/asic/prealloc-gaia.c             | 589 ---------------------
 arch/mips/powertv/asic/prealloc-zeus.c             | 304 -----------
 arch/mips/powertv/asic/prealloc.h                  |  70 ---
 arch/mips/powertv/init.c                           |  90 ----
 arch/mips/powertv/init.h                           |  28 -
 arch/mips/powertv/ioremap.c                        | 136 -----
 arch/mips/powertv/memory.c                         | 353 ------------
 arch/mips/powertv/pci/Makefile                     |  19 -
 arch/mips/powertv/pci/fixup-powertv.c              |  37 --
 arch/mips/powertv/pci/powertv-pci.h                |  31 --
 arch/mips/powertv/powertv-clock.h                  |  26 -
 arch/mips/powertv/powertv-usb.c                    | 404 --------------
 arch/mips/powertv/powertv_setup.c                  | 319 -----------
 arch/mips/powertv/reset.c                          |  35 --
 arch/mips/powertv/reset.h                          |  26 -
 arch/mips/powertv/time.c                           |  36 --
 45 files changed, 5972 deletions(-)
 delete mode 100644 arch/mips/configs/powertv_defconfig
 delete mode 100644 arch/mips/include/asm/mach-powertv/asic.h
 delete mode 100644 arch/mips/include/asm/mach-powertv/asic_reg_map.h
 delete mode 100644 arch/mips/include/asm/mach-powertv/asic_regs.h
 delete mode 100644 arch/mips/include/asm/mach-powertv/cpu-feature-overrides.h
 delete mode 100644 arch/mips/include/asm/mach-powertv/dma-coherence.h
 delete mode 100644 arch/mips/include/asm/mach-powertv/interrupts.h
 delete mode 100644 arch/mips/include/asm/mach-powertv/ioremap.h
 delete mode 100644 arch/mips/include/asm/mach-powertv/irq.h
 delete mode 100644 arch/mips/include/asm/mach-powertv/powertv-clock.h
 delete mode 100644 arch/mips/include/asm/mach-powertv/war.h
 delete mode 100644 arch/mips/kernel/csrc-powertv.c
 delete mode 100644 arch/mips/powertv/Kconfig
 delete mode 100644 arch/mips/powertv/Makefile
 delete mode 100644 arch/mips/powertv/Platform
 delete mode 100644 arch/mips/powertv/asic/Makefile
 delete mode 100644 arch/mips/powertv/asic/asic-calliope.c
 delete mode 100644 arch/mips/powertv/asic/asic-cronus.c
 delete mode 100644 arch/mips/powertv/asic/asic-gaia.c
 delete mode 100644 arch/mips/powertv/asic/asic-zeus.c
 delete mode 100644 arch/mips/powertv/asic/asic_devices.c
 delete mode 100644 arch/mips/powertv/asic/asic_int.c
 delete mode 100644 arch/mips/powertv/asic/irq_asic.c
 delete mode 100644 arch/mips/powertv/asic/prealloc-calliope.c
 delete mode 100644 arch/mips/powertv/asic/prealloc-cronus.c
 delete mode 100644 arch/mips/powertv/asic/prealloc-cronuslite.c
 delete mode 100644 arch/mips/powertv/asic/prealloc-gaia.c
 delete mode 100644 arch/mips/powertv/asic/prealloc-zeus.c
 delete mode 100644 arch/mips/powertv/asic/prealloc.h
 delete mode 100644 arch/mips/powertv/init.c
 delete mode 100644 arch/mips/powertv/init.h
 delete mode 100644 arch/mips/powertv/ioremap.c
 delete mode 100644 arch/mips/powertv/memory.c
 delete mode 100644 arch/mips/powertv/pci/Makefile
 delete mode 100644 arch/mips/powertv/pci/fixup-powertv.c
 delete mode 100644 arch/mips/powertv/pci/powertv-pci.h
 delete mode 100644 arch/mips/powertv/powertv-clock.h
 delete mode 100644 arch/mips/powertv/powertv-usb.c
 delete mode 100644 arch/mips/powertv/powertv_setup.c
 delete mode 100644 arch/mips/powertv/reset.c
 delete mode 100644 arch/mips/powertv/reset.h
 delete mode 100644 arch/mips/powertv/time.c

diff --git a/arch/mips/Kbuild.platforms b/arch/mips/Kbuild.platforms
index d9d81c219253..6e239123d6fe 100644
--- a/arch/mips/Kbuild.platforms
+++ b/arch/mips/Kbuild.platforms
@@ -20,7 +20,6 @@ platforms += mti-sead3
 platforms += netlogic
 platforms += pmcs-msp71xx
 platforms += pnx833x
-platforms += powertv
 platforms += ralink
 platforms += rb532
 platforms += sgi-ip22
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index d2440478787b..17cc7ff8458c 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -415,23 +415,6 @@ config PMC_MSP
 	  of integrated peripherals, interfaces and DSPs in addition to
 	  a variety of MIPS cores.
 
-config POWERTV
-	bool "Cisco PowerTV"
-	select BOOT_ELF32
-	select CEVT_R4K
-	select CPU_MIPSR2_IRQ_VI
-	select CPU_MIPSR2_IRQ_EI
-	select CSRC_POWERTV
-	select DMA_NONCOHERENT
-	select HW_HAS_PCI
-	select SYS_HAS_CPU_MIPS32_R2
-	select SYS_SUPPORTS_32BIT_KERNEL
-	select SYS_SUPPORTS_BIG_ENDIAN
-	select SYS_SUPPORTS_HIGHMEM
-	select USB_OHCI_LITTLE_ENDIAN
-	help
-	  This enables support for the Cisco PowerTV Platform.
-
 config RALINK
 	bool "Ralink based machines"
 	select CEVT_R4K
@@ -814,7 +797,6 @@ source "arch/mips/jz4740/Kconfig"
 source "arch/mips/lantiq/Kconfig"
 source "arch/mips/lasat/Kconfig"
 source "arch/mips/pmcs-msp71xx/Kconfig"
-source "arch/mips/powertv/Kconfig"
 source "arch/mips/ralink/Kconfig"
 source "arch/mips/sgi-ip27/Kconfig"
 source "arch/mips/sibyte/Kconfig"
@@ -893,9 +875,6 @@ config CSRC_BCM1480
 config CSRC_IOASIC
 	bool
 
-config CSRC_POWERTV
-	bool
-
 config CSRC_R4K
 	bool
 
diff --git a/arch/mips/configs/powertv_defconfig b/arch/mips/configs/powertv_defconfig
deleted file mode 100644
index 7fda0ce5f692..000000000000
--- a/arch/mips/configs/powertv_defconfig
+++ /dev/null
@@ -1,136 +0,0 @@
-CONFIG_POWERTV=y
-CONFIG_BOOTLOADER_FAMILY="R2"
-CONFIG_NO_HZ=y
-CONFIG_HIGH_RES_TIMERS=y
-CONFIG_HZ_1000=y
-CONFIG_PREEMPT=y
-# CONFIG_SECCOMP is not set
-CONFIG_EXPERIMENTAL=y
-CONFIG_CROSS_COMPILE=""
-# CONFIG_SWAP is not set
-CONFIG_SYSVIPC=y
-CONFIG_LOG_BUF_SHIFT=16
-CONFIG_RELAY=y
-CONFIG_BLK_DEV_INITRD=y
-# CONFIG_RD_GZIP is not set
-# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
-CONFIG_EXPERT=y
-# CONFIG_SYSCTL_SYSCALL is not set
-CONFIG_KALLSYMS_ALL=y
-# CONFIG_PCSPKR_PLATFORM is not set
-# CONFIG_EPOLL is not set
-# CONFIG_SIGNALFD is not set
-# CONFIG_EVENTFD is not set
-# CONFIG_VM_EVENT_COUNTERS is not set
-# CONFIG_SLUB_DEBUG is not set
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-CONFIG_MODVERSIONS=y
-CONFIG_MODULE_SRCVERSION_ALL=y
-# CONFIG_BLK_DEV_BSG is not set
-# CONFIG_IOSCHED_DEADLINE is not set
-# CONFIG_IOSCHED_CFQ is not set
-CONFIG_PCI=y
-CONFIG_NET=y
-CONFIG_PACKET=y
-CONFIG_UNIX=y
-CONFIG_INET=y
-CONFIG_IP_MULTICAST=y
-CONFIG_IP_ADVANCED_ROUTER=y
-CONFIG_IP_PNP=y
-CONFIG_SYN_COOKIES=y
-# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
-# CONFIG_INET_XFRM_MODE_TUNNEL is not set
-# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
-# CONFIG_INET_DIAG is not set
-CONFIG_IPV6=y
-CONFIG_IPV6_PRIVACY=y
-CONFIG_INET6_AH=y
-CONFIG_INET6_ESP=y
-CONFIG_INET6_IPCOMP=y
-# CONFIG_INET6_XFRM_MODE_TRANSPORT is not set
-# CONFIG_INET6_XFRM_MODE_TUNNEL is not set
-# CONFIG_INET6_XFRM_MODE_BEET is not set
-# CONFIG_IPV6_SIT is not set
-CONFIG_IPV6_TUNNEL=y
-CONFIG_NETFILTER=y
-# CONFIG_BRIDGE_NETFILTER is not set
-CONFIG_NETFILTER_XT_MATCH_MULTIPORT=y
-CONFIG_IP_NF_IPTABLES=y
-CONFIG_IP_NF_FILTER=y
-CONFIG_IP_NF_ARPTABLES=y
-CONFIG_IP_NF_ARPFILTER=y
-CONFIG_IP6_NF_IPTABLES=y
-CONFIG_IP6_NF_FILTER=y
-CONFIG_BRIDGE=y
-CONFIG_NET_SCHED=y
-CONFIG_NET_SCH_TBF=y
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
-CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
-CONFIG_MTD_BLOCK=y
-CONFIG_MTD_NAND=y
-CONFIG_BLK_DEV_LOOP=y
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_SIZE=32768
-# CONFIG_MISC_DEVICES is not set
-# CONFIG_SCSI_PROC_FS is not set
-CONFIG_BLK_DEV_SD=y
-# CONFIG_SCSI_LOWLEVEL is not set
-CONFIG_ATA=y
-CONFIG_NETDEVICES=y
-CONFIG_NET_ETHERNET=y
-# CONFIG_WLAN is not set
-CONFIG_USB_RTL8150=y
-# CONFIG_INPUT_MOUSEDEV is not set
-CONFIG_INPUT_EVDEV=y
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-# CONFIG_SERIO is not set
-# CONFIG_VT is not set
-# CONFIG_DEVKMEM is not set
-# CONFIG_LEGACY_PTYS is not set
-# CONFIG_HW_RANDOM is not set
-# CONFIG_HWMON is not set
-# CONFIG_MFD_SUPPORT is not set
-# CONFIG_VGA_ARB is not set
-CONFIG_USB_HIDDEV=y
-CONFIG_USB=y
-CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
-CONFIG_USB_DEVICEFS=y
-# CONFIG_USB_DEVICE_CLASS is not set
-CONFIG_USB_EHCI_HCD=y
-# CONFIG_USB_EHCI_TT_NEWSCHED is not set
-CONFIG_USB_OHCI_HCD=y
-CONFIG_USB_STORAGE=y
-CONFIG_USB_SERIAL=y
-CONFIG_USB_SERIAL_CONSOLE=y
-CONFIG_USB_SERIAL_CP210X=y
-CONFIG_EXT2_FS=y
-CONFIG_EXT3_FS=y
-# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
-# CONFIG_EXT3_FS_XATTR is not set
-# CONFIG_DNOTIFY is not set
-CONFIG_FUSE_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_TMPFS=y
-CONFIG_JFFS2_FS=y
-CONFIG_CRAMFS=y
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-CONFIG_ROOT_NFS=y
-CONFIG_PRINTK_TIME=y
-CONFIG_DEBUG_FS=y
-CONFIG_DEBUG_KERNEL=y
-CONFIG_DETECT_HUNG_TASK=y
-# CONFIG_SCHED_DEBUG is not set
-# CONFIG_DEBUG_PREEMPT is not set
-CONFIG_DEBUG_INFO=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-# CONFIG_EARLY_PRINTK is not set
-CONFIG_CMDLINE_BOOL=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
-# CONFIG_CRYPTO_HW is not set
diff --git a/arch/mips/include/asm/mach-powertv/asic.h b/arch/mips/include/asm/mach-powertv/asic.h
deleted file mode 100644
index b341108d12f1..000000000000
--- a/arch/mips/include/asm/mach-powertv/asic.h
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * Copyright (C) 2009  Cisco Systems, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#ifndef _ASM_MACH_POWERTV_ASIC_H
-#define _ASM_MACH_POWERTV_ASIC_H
-
-#include <linux/ioport.h>
-#include <linux/platform_device.h>
-#include <asm/mach-powertv/asic_regs.h>
-
-#define DVR_CAPABLE	(1<<0)
-#define PCIE_CAPABLE	(1<<1)
-#define FFS_CAPABLE	(1<<2)
-#define DISPLAY_CAPABLE (1<<3)
-
-/* Platform Family types
- * For compitability, the new value must be added in the end */
-enum family_type {
-	FAMILY_8500,
-	FAMILY_8500RNG,
-	FAMILY_4500,
-	FAMILY_1500,
-	FAMILY_8600,
-	FAMILY_4600,
-	FAMILY_4600VZA,
-	FAMILY_8600VZB,
-	FAMILY_1500VZE,
-	FAMILY_1500VZF,
-	FAMILY_8700,
-	FAMILIES
-};
-
-/* Register maps for each ASIC */
-extern const struct register_map calliope_register_map;
-extern const struct register_map cronus_register_map;
-extern const struct register_map gaia_register_map;
-extern const struct register_map zeus_register_map;
-
-extern struct resource dvr_cronus_resources[];
-extern struct resource dvr_gaia_resources[];
-extern struct resource dvr_zeus_resources[];
-extern struct resource non_dvr_calliope_resources[];
-extern struct resource non_dvr_cronus_resources[];
-extern struct resource non_dvr_cronuslite_resources[];
-extern struct resource non_dvr_gaia_resources[];
-extern struct resource non_dvr_vz_calliope_resources[];
-extern struct resource non_dvr_vze_calliope_resources[];
-extern struct resource non_dvr_vzf_calliope_resources[];
-extern struct resource non_dvr_zeus_resources[];
-
-extern void powertv_platform_init(void);
-extern void platform_alloc_bootmem(void);
-extern enum asic_type platform_get_asic(void);
-extern enum family_type platform_get_family(void);
-extern int platform_supports_dvr(void);
-extern int platform_supports_ffs(void);
-extern int platform_supports_pcie(void);
-extern int platform_supports_display(void);
-extern void configure_platform(void);
-
-/* Platform Resources */
-#define ASIC_RESOURCE_GET_EXISTS 1
-extern struct resource *asic_resource_get(const char *name);
-extern void platform_release_memory(void *baddr, int size);
-
-/* USB configuration */
-struct usb_hcd;			/* Forward reference */
-extern void platform_configure_usb_ehci(void);
-extern void platform_unconfigure_usb_ehci(void);
-extern void platform_configure_usb_ohci(void);
-extern void platform_unconfigure_usb_ohci(void);
-
-/* Resource for ASIC registers */
-extern struct resource asic_resource;
-extern int platform_usb_devices_init(struct platform_device **echi_dev,
-	struct platform_device **ohci_dev);
-
-/* Reboot Cause */
-extern void set_reboot_cause(char code, unsigned int data, unsigned int data2);
-extern void set_locked_reboot_cause(char code, unsigned int data,
-	unsigned int data2);
-
-enum sys_reboot_type {
-	sys_unknown_reboot = 0x00,	/* Unknown reboot cause */
-	sys_davic_change = 0x01,	/* Reboot due to change in DAVIC
-					 * mode */
-	sys_user_reboot = 0x02,		/* Reboot initiated by user */
-	sys_system_reboot = 0x03,	/* Reboot initiated by OS */
-	sys_trap_reboot = 0x04,		/* Reboot due to a CPU trap */
-	sys_silent_reboot = 0x05,	/* Silent reboot */
-	sys_boot_ldr_reboot = 0x06,	/* Bootloader reboot */
-	sys_power_up_reboot = 0x07,	/* Power on bootup.  Older
-					 * drivers may report as
-					 * userReboot. */
-	sys_code_change = 0x08,		/* Reboot to take code change.
-					 * Older drivers may report as
-					 * userReboot. */
-	sys_hardware_reset = 0x09,	/* HW watchdog or front-panel
-					 * reset button reset.	Older
-					 * drivers may report as
-					 * userReboot. */
-	sys_watchdogInterrupt = 0x0A	/* Pre-watchdog interrupt */
-};
-
-#endif /* _ASM_MACH_POWERTV_ASIC_H */
diff --git a/arch/mips/include/asm/mach-powertv/asic_reg_map.h b/arch/mips/include/asm/mach-powertv/asic_reg_map.h
deleted file mode 100644
index 20348e817b09..000000000000
--- a/arch/mips/include/asm/mach-powertv/asic_reg_map.h
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
- *				asic_reg_map.h
- *
- * A macro-enclosed list of the elements for the register_map structure for
- * use in defining and manipulating the structure.
- *
- * Copyright (C) 2009  Cisco Systems, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-REGISTER_MAP_ELEMENT(eic_slow0_strt_add)
-REGISTER_MAP_ELEMENT(eic_cfg_bits)
-REGISTER_MAP_ELEMENT(eic_ready_status)
-REGISTER_MAP_ELEMENT(chipver3)
-REGISTER_MAP_ELEMENT(chipver2)
-REGISTER_MAP_ELEMENT(chipver1)
-REGISTER_MAP_ELEMENT(chipver0)
-REGISTER_MAP_ELEMENT(uart1_intstat)
-REGISTER_MAP_ELEMENT(uart1_inten)
-REGISTER_MAP_ELEMENT(uart1_config1)
-REGISTER_MAP_ELEMENT(uart1_config2)
-REGISTER_MAP_ELEMENT(uart1_divisorhi)
-REGISTER_MAP_ELEMENT(uart1_divisorlo)
-REGISTER_MAP_ELEMENT(uart1_data)
-REGISTER_MAP_ELEMENT(uart1_status)
-REGISTER_MAP_ELEMENT(int_stat_3)
-REGISTER_MAP_ELEMENT(int_stat_2)
-REGISTER_MAP_ELEMENT(int_stat_1)
-REGISTER_MAP_ELEMENT(int_stat_0)
-REGISTER_MAP_ELEMENT(int_config)
-REGISTER_MAP_ELEMENT(int_int_scan)
-REGISTER_MAP_ELEMENT(ien_int_3)
-REGISTER_MAP_ELEMENT(ien_int_2)
-REGISTER_MAP_ELEMENT(ien_int_1)
-REGISTER_MAP_ELEMENT(ien_int_0)
-REGISTER_MAP_ELEMENT(int_level_3_3)
-REGISTER_MAP_ELEMENT(int_level_3_2)
-REGISTER_MAP_ELEMENT(int_level_3_1)
-REGISTER_MAP_ELEMENT(int_level_3_0)
-REGISTER_MAP_ELEMENT(int_level_2_3)
-REGISTER_MAP_ELEMENT(int_level_2_2)
-REGISTER_MAP_ELEMENT(int_level_2_1)
-REGISTER_MAP_ELEMENT(int_level_2_0)
-REGISTER_MAP_ELEMENT(int_level_1_3)
-REGISTER_MAP_ELEMENT(int_level_1_2)
-REGISTER_MAP_ELEMENT(int_level_1_1)
-REGISTER_MAP_ELEMENT(int_level_1_0)
-REGISTER_MAP_ELEMENT(int_level_0_3)
-REGISTER_MAP_ELEMENT(int_level_0_2)
-REGISTER_MAP_ELEMENT(int_level_0_1)
-REGISTER_MAP_ELEMENT(int_level_0_0)
-REGISTER_MAP_ELEMENT(int_docsis_en)
-REGISTER_MAP_ELEMENT(mips_pll_setup)
-REGISTER_MAP_ELEMENT(fs432x4b4_usb_ctl)
-REGISTER_MAP_ELEMENT(test_bus)
-REGISTER_MAP_ELEMENT(crt_spare)
-REGISTER_MAP_ELEMENT(usb2_ohci_int_mask)
-REGISTER_MAP_ELEMENT(usb2_strap)
-REGISTER_MAP_ELEMENT(ehci_hcapbase)
-REGISTER_MAP_ELEMENT(ohci_hc_revision)
-REGISTER_MAP_ELEMENT(bcm1_bs_lmi_steer)
-REGISTER_MAP_ELEMENT(usb2_control)
-REGISTER_MAP_ELEMENT(usb2_stbus_obc)
-REGISTER_MAP_ELEMENT(usb2_stbus_mess_size)
-REGISTER_MAP_ELEMENT(usb2_stbus_chunk_size)
-REGISTER_MAP_ELEMENT(pcie_regs)
-REGISTER_MAP_ELEMENT(tim_ch)
-REGISTER_MAP_ELEMENT(tim_cl)
-REGISTER_MAP_ELEMENT(gpio_dout)
-REGISTER_MAP_ELEMENT(gpio_din)
-REGISTER_MAP_ELEMENT(gpio_dir)
-REGISTER_MAP_ELEMENT(watchdog)
-REGISTER_MAP_ELEMENT(front_panel)
-REGISTER_MAP_ELEMENT(misc_clk_ctl1)
-REGISTER_MAP_ELEMENT(misc_clk_ctl2)
-REGISTER_MAP_ELEMENT(crt_ext_ctl)
-REGISTER_MAP_ELEMENT(register_maps)
diff --git a/arch/mips/include/asm/mach-powertv/asic_regs.h b/arch/mips/include/asm/mach-powertv/asic_regs.h
deleted file mode 100644
index 06712abb3e55..000000000000
--- a/arch/mips/include/asm/mach-powertv/asic_regs.h
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * Copyright (C) 2009  Cisco Systems, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#ifndef __ASM_MACH_POWERTV_ASIC_H_
-#define __ASM_MACH_POWERTV_ASIC_H_
-#include <linux/io.h>
-
-/* ASIC types */
-enum asic_type {
-	ASIC_UNKNOWN,
-	ASIC_ZEUS,
-	ASIC_CALLIOPE,
-	ASIC_CRONUS,
-	ASIC_CRONUSLITE,
-	ASIC_GAIA,
-	ASICS			/* Number of supported ASICs */
-};
-
-/* hardcoded values read from Chip Version registers */
-#define CRONUS_10	0x0B4C1C20
-#define CRONUS_11	0x0B4C1C21
-#define CRONUSLITE_10	0x0B4C1C40
-
-#define NAND_FLASH_BASE		0x03000000
-#define CALLIOPE_IO_BASE	0x08000000
-#define GAIA_IO_BASE		0x09000000
-#define CRONUS_IO_BASE		0x09000000
-#define ZEUS_IO_BASE		0x09000000
-
-#define ASIC_IO_SIZE		0x01000000
-
-/* Definitions for backward compatibility */
-#define UART1_INTSTAT	uart1_intstat
-#define UART1_INTEN	uart1_inten
-#define UART1_CONFIG1	uart1_config1
-#define UART1_CONFIG2	uart1_config2
-#define UART1_DIVISORHI uart1_divisorhi
-#define UART1_DIVISORLO uart1_divisorlo
-#define UART1_DATA	uart1_data
-#define UART1_STATUS	uart1_status
-
-/* ASIC register enumeration */
-union register_map_entry {
-	unsigned long phys;
-	u32 *virt;
-};
-
-#define REGISTER_MAP_ELEMENT(x) union register_map_entry x;
-struct register_map {
-#include <asm/mach-powertv/asic_reg_map.h>
-};
-#undef REGISTER_MAP_ELEMENT
-
-/**
- * register_map_offset_phys - add an offset to the physical address
- * @map:	Pointer to the &struct register_map
- * @offset:	Value to add
- *
- * Only adds the base to non-zero physical addresses
- */
-static inline void register_map_offset_phys(struct register_map *map,
-	unsigned long offset)
-{
-#define REGISTER_MAP_ELEMENT(x)		do {				\
-		if (map->x.phys != 0)					\
-			map->x.phys += offset;				\
-	} while (false);
-
-#include <asm/mach-powertv/asic_reg_map.h>
-#undef REGISTER_MAP_ELEMENT
-}
-
-/**
- * register_map_virtualize - Convert &register_map to virtual addresses
- * @map:	Pointer to &register_map to virtualize
- */
-static inline void register_map_virtualize(struct register_map *map)
-{
-#define REGISTER_MAP_ELEMENT(x)		do {				\
-		map->x.virt = (!map->x.phys) ? NULL :			\
-			UNCAC_ADDR(phys_to_virt(map->x.phys));		\
-	} while (false);
-
-#include <asm/mach-powertv/asic_reg_map.h>
-#undef REGISTER_MAP_ELEMENT
-}
-
-extern struct register_map _asic_register_map;
-extern unsigned long asic_phy_base;
-
-/*
- * Macros to interface to registers through their ioremapped address
- * asic_reg_phys_addr	Returns the physical address of the given register
- * asic_reg_addr	Returns the iomapped virtual address of the given
- *			register.
- */
-#define asic_reg_addr(x)	(_asic_register_map.x.virt)
-#define asic_reg_phys_addr(x)	(virt_to_phys((void *) CAC_ADDR(	\
-					(unsigned long) asic_reg_addr(x))))
-
-/*
- * The asic_reg macro is gone. It should be replaced by either asic_read or
- * asic_write, as appropriate.
- */
-
-#define asic_read(x)		readl(asic_reg_addr(x))
-#define asic_write(v, x)	writel(v, asic_reg_addr(x))
-
-extern void asic_irq_init(void);
-#endif
diff --git a/arch/mips/include/asm/mach-powertv/cpu-feature-overrides.h b/arch/mips/include/asm/mach-powertv/cpu-feature-overrides.h
deleted file mode 100644
index 58c76ec32a19..000000000000
--- a/arch/mips/include/asm/mach-powertv/cpu-feature-overrides.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * Copyright (C) 2010  Cisco Systems, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#ifndef _ASM_MACH_POWERTV_CPU_FEATURE_OVERRIDES_H_
-#define _ASM_MACH_POWERTV_CPU_FEATURE_OVERRIDES_H_
-#define cpu_has_tlb			1
-#define cpu_has_4kex			1
-#define cpu_has_3k_cache		0
-#define cpu_has_4k_cache		1
-#define cpu_has_tx39_cache		0
-#define cpu_has_fpu			0
-#define cpu_has_counter			1
-#define cpu_has_watch			1
-#define cpu_has_divec			1
-#define cpu_has_vce			0
-#define cpu_has_cache_cdex_p		0
-#define cpu_has_cache_cdex_s		0
-#define cpu_has_mcheck			1
-#define cpu_has_ejtag			1
-#define cpu_has_llsc			1
-#define cpu_has_mips16			0
-#define cpu_has_mdmx			0
-#define cpu_has_mips3d			0
-#define cpu_has_smartmips		0
-#define cpu_has_vtag_icache		0
-#define cpu_has_dc_aliases		0
-#define cpu_has_ic_fills_f_dc		0
-#define cpu_has_mips32r1		0
-#define cpu_has_mips32r2		1
-#define cpu_has_mips64r1		0
-#define cpu_has_mips64r2		0
-#define cpu_has_dsp			0
-#define cpu_has_dsp2			0
-#define cpu_has_mipsmt			0
-#define cpu_has_userlocal		0
-#define cpu_has_nofpuex			0
-#define cpu_has_64bits			0
-#define cpu_has_64bit_zero_reg		0
-#define cpu_has_vint			1
-#define cpu_has_veic			1
-#define cpu_has_inclusive_pcaches	0
-
-#define cpu_dcache_line_size()		32
-#define cpu_icache_line_size()		32
-#endif
diff --git a/arch/mips/include/asm/mach-powertv/dma-coherence.h b/arch/mips/include/asm/mach-powertv/dma-coherence.h
deleted file mode 100644
index 5d4c3fe04722..000000000000
--- a/arch/mips/include/asm/mach-powertv/dma-coherence.h
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Version from mach-generic modified to support PowerTV port
- * Portions Copyright (C) 2009	Cisco Systems, Inc.
- * Copyright (C) 2006  Ralf Baechle <ralf@linux-mips.org>
- *
- */
-
-#ifndef __ASM_MACH_POWERTV_DMA_COHERENCE_H
-#define __ASM_MACH_POWERTV_DMA_COHERENCE_H
-
-#include <linux/sched.h>
-#include <linux/device.h>
-#include <asm/mach-powertv/asic.h>
-
-static inline bool is_kseg2(void *addr)
-{
-	return (unsigned long)addr >= KSEG2;
-}
-
-static inline unsigned long virt_to_phys_from_pte(void *addr)
-{
-	pgd_t *pgd;
-	pud_t *pud;
-	pmd_t *pmd;
-	pte_t *ptep, pte;
-
-	unsigned long virt_addr = (unsigned long)addr;
-	unsigned long phys_addr = 0UL;
-
-	/* get the page global directory. */
-	pgd = pgd_offset_k(virt_addr);
-
-	if (!pgd_none(*pgd)) {
-		/* get the page upper directory */
-		pud = pud_offset(pgd, virt_addr);
-		if (!pud_none(*pud)) {
-			/* get the page middle directory */
-			pmd = pmd_offset(pud, virt_addr);
-			if (!pmd_none(*pmd)) {
-				/* get a pointer to the page table entry */
-				ptep = pte_offset(pmd, virt_addr);
-				pte = *ptep;
-				/* check for a valid page */
-				if (pte_present(pte)) {
-					/* get the physical address the page is
-					 * referring to */
-					phys_addr = (unsigned long)
-						page_to_phys(pte_page(pte));
-					/* add the offset within the page */
-					phys_addr |= (virt_addr & ~PAGE_MASK);
-				}
-			}
-		}
-	}
-
-	return phys_addr;
-}
-
-static inline dma_addr_t plat_map_dma_mem(struct device *dev, void *addr,
-	size_t size)
-{
-	if (is_kseg2(addr))
-		return phys_to_dma(virt_to_phys_from_pte(addr));
-	else
-		return phys_to_dma(virt_to_phys(addr));
-}
-
-static inline dma_addr_t plat_map_dma_mem_page(struct device *dev,
-	struct page *page)
-{
-	return phys_to_dma(page_to_phys(page));
-}
-
-static inline unsigned long plat_dma_addr_to_phys(struct device *dev,
-	dma_addr_t dma_addr)
-{
-	return dma_to_phys(dma_addr);
-}
-
-static inline void plat_unmap_dma_mem(struct device *dev, dma_addr_t dma_addr,
-	size_t size, enum dma_data_direction direction)
-{
-}
-
-static inline int plat_dma_supported(struct device *dev, u64 mask)
-{
-	/*
-	 * we fall back to GFP_DMA when the mask isn't all 1s,
-	 * so we can't guarantee allocations that must be
-	 * within a tighter range than GFP_DMA..
-	 */
-	if (mask < DMA_BIT_MASK(24))
-		return 0;
-
-	return 1;
-}
-
-static inline int plat_device_is_coherent(struct device *dev)
-{
-	return 0;
-}
-
-#endif /* __ASM_MACH_POWERTV_DMA_COHERENCE_H */
diff --git a/arch/mips/include/asm/mach-powertv/interrupts.h b/arch/mips/include/asm/mach-powertv/interrupts.h
deleted file mode 100644
index 6c463be62156..000000000000
--- a/arch/mips/include/asm/mach-powertv/interrupts.h
+++ /dev/null
@@ -1,253 +0,0 @@
-/*
- * Copyright (C) 2009  Cisco Systems, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#ifndef _ASM_MACH_POWERTV_INTERRUPTS_H_
-#define _ASM_MACH_POWERTV_INTERRUPTS_H_
-
-/*
- * Defines for all of the interrupt lines
- */
-
-/* Definitions for backward compatibility */
-#define kIrq_Uart1		irq_uart1
-
-#define ibase 0
-
-/*------------- Register: int_stat_3 */
-/* 126 unused (bit 31) */
-#define irq_asc2video		(ibase+126)	/* ASC 2 Video Interrupt */
-#define irq_asc1video		(ibase+125)	/* ASC 1 Video Interrupt */
-#define irq_comms_block_wd	(ibase+124)	/* ASC 1 Video Interrupt */
-#define irq_fdma_mailbox	(ibase+123)	/* FDMA Mailbox Output */
-#define irq_fdma_gp		(ibase+122)	/* FDMA GP Output */
-#define irq_mips_pic		(ibase+121)	/* MIPS Performance Counter
-						 * Interrupt */
-#define irq_mips_timer		(ibase+120)	/* MIPS Timer Interrupt */
-#define irq_memory_protect	(ibase+119)	/* Memory Protection Interrupt
-						 * -- Ored by glue logic inside
-						 *  SPARC ILC (see
-						 *  INT_MEM_PROT_STAT, below,
-						 *  for individual interrupts)
-						 */
-/* 118 unused (bit 22) */
-#define irq_sbag		(ibase+117)	/* SBAG Interrupt -- Ored by
-						 * glue logic inside SPARC ILC
-						 * (see INT_SBAG_STAT, below,
-						 * for individual interrupts) */
-#define irq_qam_b_fec		(ibase+116)	/* QAM	B FEC Interrupt */
-#define irq_qam_a_fec		(ibase+115)	/* QAM A FEC Interrupt */
-/* 114 unused	(bit 18) */
-#define irq_mailbox		(ibase+113)	/* Mailbox Debug Interrupt  --
-						 * Ored by glue logic inside
-						 * SPARC ILC (see
-						 * INT_MAILBOX_STAT, below, for
-						 * individual interrupts) */
-#define irq_fuse_stat1		(ibase+112)	/* Fuse Status 1 */
-#define irq_fuse_stat2		(ibase+111)	/* Fuse Status 2 */
-#define irq_fuse_stat3		(ibase+110)	/* Blitter Interrupt / Fuse
-						 * Status 3 */
-#define irq_blitter		(ibase+110)	/* Blitter Interrupt / Fuse
-						 * Status 3 */
-#define irq_avc1_pp0		(ibase+109)	/* AVC Decoder #1 PP0
-						 * Interrupt */
-#define irq_avc1_pp1		(ibase+108)	/* AVC Decoder #1 PP1
-						 * Interrupt */
-#define irq_avc1_mbe		(ibase+107)	/* AVC Decoder #1 MBE
-						 * Interrupt */
-#define irq_avc2_pp0		(ibase+106)	/* AVC Decoder #2 PP0
-						 * Interrupt */
-#define irq_avc2_pp1		(ibase+105)	/* AVC Decoder #2 PP1
-						 * Interrupt */
-#define irq_avc2_mbe		(ibase+104)	/* AVC Decoder #2 MBE
-						 * Interrupt */
-#define irq_zbug_spi		(ibase+103)	/* Zbug SPI Slave Interrupt */
-#define irq_qam_mod2		(ibase+102)	/* QAM Modulator 2 DMA
-						 * Interrupt */
-#define irq_ir_rx		(ibase+101)	/* IR RX 2 Interrupt */
-#define irq_aud_dsp2		(ibase+100)	/* Audio DSP #2 Interrupt */
-#define irq_aud_dsp1		(ibase+99)	/* Audio DSP #1 Interrupt */
-#define irq_docsis		(ibase+98)	/* DOCSIS Debug Interrupt */
-#define irq_sd_dvp1		(ibase+97)	/* SD DVP #1 Interrupt */
-#define irq_sd_dvp2		(ibase+96)	/* SD DVP #2 Interrupt */
-/*------------- Register: int_stat_2 */
-#define irq_hd_dvp		(ibase+95)	/* HD DVP Interrupt */
-#define kIrq_Prewatchdog	(ibase+94)	/* watchdog Pre-Interrupt */
-#define irq_timer2		(ibase+93)	/* Programmable Timer
-						 * Interrupt 2 */
-#define irq_1394		(ibase+92)	/* 1394 Firewire Interrupt */
-#define irq_usbohci		(ibase+91)	/* USB 2.0 OHCI Interrupt */
-#define irq_usbehci		(ibase+90)	/* USB 2.0 EHCI Interrupt */
-#define irq_pciexp		(ibase+89)	/* PCI Express 0 Interrupt */
-#define irq_pciexp0		(ibase+89)	/* PCI Express 0 Interrupt */
-#define irq_afe1		(ibase+88)	/* AFE 1 Interrupt */
-#define irq_sata		(ibase+87)	/* SATA 1 Interrupt */
-#define irq_sata1		(ibase+87)	/* SATA 1 Interrupt */
-#define irq_dtcp		(ibase+86)	/* DTCP Interrupt */
-#define irq_pciexp1		(ibase+85)	/* PCI Express 1 Interrupt */
-/* 84 unused	(bit 20) */
-/* 83 unused	(bit 19) */
-/* 82 unused	(bit 18) */
-#define irq_sata2		(ibase+81)	/* SATA2 Interrupt */
-#define irq_uart2		(ibase+80)	/* UART2 Interrupt */
-#define irq_legacy_usb		(ibase+79)	/* Legacy USB Host ISR (1.1
-						 * Host module) */
-#define irq_pod			(ibase+78)	/* POD Interrupt */
-#define irq_slave_usb		(ibase+77)	/* Slave USB */
-#define irq_denc1		(ibase+76)	/* DENC #1 VTG Interrupt */
-#define irq_vbi_vtg		(ibase+75)	/* VBI VTG Interrupt */
-#define irq_afe2		(ibase+74)	/* AFE 2 Interrupt */
-#define irq_denc2		(ibase+73)	/* DENC #2 VTG Interrupt */
-#define irq_asc2		(ibase+72)	/* ASC #2 Interrupt */
-#define irq_asc1		(ibase+71)	/* ASC #1 Interrupt */
-#define irq_mod_dma		(ibase+70)	/* Modulator DMA Interrupt */
-#define irq_byte_eng1		(ibase+69)	/* Byte Engine Interrupt [1] */
-#define irq_byte_eng0		(ibase+68)	/* Byte Engine Interrupt [0] */
-/* 67 unused	(bit 03) */
-/* 66 unused	(bit 02) */
-/* 65 unused	(bit 01) */
-/* 64 unused	(bit 00) */
-/*------------- Register: int_stat_1 */
-/* 63 unused	(bit 31) */
-/* 62 unused	(bit 30) */
-/* 61 unused	(bit 29) */
-/* 60 unused	(bit 28) */
-/* 59 unused	(bit 27) */
-/* 58 unused	(bit 26) */
-/* 57 unused	(bit 25) */
-/* 56 unused	(bit 24) */
-#define irq_buf_dma_mem2mem	(ibase+55)	/* BufDMA Memory to Memory
-						 * Interrupt */
-#define irq_buf_dma_usbtransmit (ibase+54)	/* BufDMA USB Transmit
-						 * Interrupt */
-#define irq_buf_dma_qpskpodtransmit (ibase+53)	/* BufDMA QPSK/POD Tramsit
-						 * Interrupt */
-#define irq_buf_dma_transmit_error (ibase+52)	/* BufDMA Transmit Error
-						 * Interrupt */
-#define irq_buf_dma_usbrecv	(ibase+51)	/* BufDMA USB Receive
-						 * Interrupt */
-#define irq_buf_dma_qpskpodrecv (ibase+50)	/* BufDMA QPSK/POD Receive
-						 * Interrupt */
-#define irq_buf_dma_recv_error	(ibase+49)	/* BufDMA Receive Error
-						 * Interrupt */
-#define irq_qamdma_transmit_play (ibase+48)	/* QAMDMA Transmit/Play
-						 * Interrupt */
-#define irq_qamdma_transmit_error (ibase+47)	/* QAMDMA Transmit Error
-						 * Interrupt */
-#define irq_qamdma_recv2high	(ibase+46)	/* QAMDMA Receive 2 High
-						 * (Chans 63-32) */
-#define irq_qamdma_recv2low	(ibase+45)	/* QAMDMA Receive 2 Low
-						 * (Chans 31-0) */
-#define irq_qamdma_recv1high	(ibase+44)	/* QAMDMA Receive 1 High
-						 * (Chans 63-32) */
-#define irq_qamdma_recv1low	(ibase+43)	/* QAMDMA Receive 1 Low
-						 * (Chans 31-0) */
-#define irq_qamdma_recv_error	(ibase+42)	/* QAMDMA Receive Error
-						 * Interrupt */
-#define irq_mpegsplice		(ibase+41)	/* MPEG Splice Interrupt */
-#define irq_deinterlace_rdy	(ibase+40)	/* Deinterlacer Frame Ready
-						 * Interrupt */
-#define irq_ext_in0		(ibase+39)	/* External Interrupt irq_in0 */
-#define irq_gpio3		(ibase+38)	/* GP I/O IRQ 3 - From GP I/O
-						 * Module */
-#define irq_gpio2		(ibase+37)	/* GP I/O IRQ 2 - From GP I/O
-						 * Module (ABE_intN) */
-#define irq_pcrcmplt1		(ibase+36)	/* PCR Capture Complete	 or
-						 * Discontinuity 1 */
-#define irq_pcrcmplt2		(ibase+35)	/* PCR Capture Complete or
-						 * Discontinuity 2 */
-#define irq_parse_peierr	(ibase+34)	/* PID Parser Error Detect
-						 * (PEI) */
-#define irq_parse_cont_err	(ibase+33)	/* PID Parser continuity error
-						 * detect */
-#define irq_ds1framer		(ibase+32)	/* DS1 Framer Interrupt */
-/*------------- Register: int_stat_0 */
-#define irq_gpio1		(ibase+31)	/* GP I/O IRQ 1 - From GP I/O
-						 * Module */
-#define irq_gpio0		(ibase+30)	/* GP I/O IRQ 0 - From GP I/O
-						 * Module */
-#define irq_qpsk_out_aloha	(ibase+29)	/* QPSK Output Slotted Aloha
-						 * (chan 3) Transmission
-						 * Completed OK */
-#define irq_qpsk_out_tdma	(ibase+28)	/* QPSK Output TDMA (chan 2)
-						 * Transmission Completed OK */
-#define irq_qpsk_out_reserve	(ibase+27)	/* QPSK Output Reservation
-						 * (chan 1) Transmission
-						 * Completed OK */
-#define irq_qpsk_out_aloha_err	(ibase+26)	/* QPSK Output Slotted Aloha
-						 * (chan 3)Transmission
-						 * completed with Errors. */
-#define irq_qpsk_out_tdma_err	(ibase+25)	/* QPSK Output TDMA (chan 2)
-						 * Transmission completed with
-						 * Errors. */
-#define irq_qpsk_out_rsrv_err	(ibase+24)	/* QPSK Output Reservation
-						 * (chan 1) Transmission
-						 * completed with Errors */
-#define irq_aloha_fail		(ibase+23)	/* Unsuccessful Resend of Aloha
-						 * for N times. Aloha retry
-						 * timeout for channel 3. */
-#define irq_timer1		(ibase+22)	/* Programmable Timer
-						 * Interrupt */
-#define irq_keyboard		(ibase+21)	/* Keyboard Module Interrupt */
-#define irq_i2c			(ibase+20)	/* I2C Module Interrupt */
-#define irq_spi			(ibase+19)	/* SPI Module Interrupt */
-#define irq_irblaster		(ibase+18)	/* IR Blaster Interrupt */
-#define irq_splice_detect	(ibase+17)	/* PID Key Change Interrupt or
-						 * Splice Detect Interrupt */
-#define irq_se_micro		(ibase+16)	/* Secure Micro I/F Module
-						 * Interrupt */
-#define irq_uart1		(ibase+15)	/* UART Interrupt */
-#define irq_irrecv		(ibase+14)	/* IR Receiver Interrupt */
-#define irq_host_int1		(ibase+13)	/* Host-to-Host Interrupt 1 */
-#define irq_host_int0		(ibase+12)	/* Host-to-Host Interrupt 0 */
-#define irq_qpsk_hecerr		(ibase+11)	/* QPSK HEC Error Interrupt */
-#define irq_qpsk_crcerr		(ibase+10)	/* QPSK AAL-5 CRC Error
-						 * Interrupt */
-/* 9 unused	(bit 09) */
-/* 8 unused	(bit 08) */
-#define irq_psicrcerr		(ibase+7)	/* QAM PSI CRC Error
-						 * Interrupt */
-#define irq_psilength_err	(ibase+6)	/* QAM PSI Length Error
-						 * Interrupt */
-#define irq_esfforward		(ibase+5)	/* ESF Interrupt Mark From
-						 * Forward Path Reference -
-						 * every 3ms when forward Mbits
-						 * and forward slot control
-						 * bytes are updated. */
-#define irq_esfreverse		(ibase+4)	/* ESF Interrupt Mark from
-						 * Reverse Path Reference -
-						 * delayed from forward mark by
-						 * the ranging delay plus a
-						 * fixed amount. When reverse
-						 * Mbits and reverse slot
-						 * control bytes are updated.
-						 * Occurs every 3ms for 3.0M and
-						 * 1.554 M upstream rates and
-						 * every 6 ms for 256K upstream
-						 * rate. */
-#define irq_aloha_timeout	(ibase+3)	/* Slotted-Aloha timeout on
-						 * Channel 1. */
-#define irq_reservation		(ibase+2)	/* Partial (or Incremental)
-						 * Reservation Message Completed
-						 * or Slotted aloha verify for
-						 * channel 1. */
-#define irq_aloha3		(ibase+1)	/* Slotted-Aloha Message Verify
-						 * Interrupt or Reservation
-						 * increment completed for
-						 * channel 3. */
-#define irq_mpeg_d		(ibase+0)	/* MPEG Decoder Interrupt */
-#endif	/* _ASM_MACH_POWERTV_INTERRUPTS_H_ */
diff --git a/arch/mips/include/asm/mach-powertv/ioremap.h b/arch/mips/include/asm/mach-powertv/ioremap.h
deleted file mode 100644
index c86ef094ec37..000000000000
--- a/arch/mips/include/asm/mach-powertv/ioremap.h
+++ /dev/null
@@ -1,167 +0,0 @@
-/*
- *	This program is free software; you can redistribute it and/or
- *	modify it under the terms of the GNU General Public License
- *	as published by the Free Software Foundation; either version
- *	2 of the License, or (at your option) any later version.
- *
- * Portions Copyright (C)  Cisco Systems, Inc.
- */
-#ifndef __ASM_MACH_POWERTV_IOREMAP_H
-#define __ASM_MACH_POWERTV_IOREMAP_H
-
-#include <linux/types.h>
-#include <linux/log2.h>
-#include <linux/compiler.h>
-
-#include <asm/pgtable-bits.h>
-#include <asm/addrspace.h>
-
-/* We're going to mess with bits, so get sizes */
-#define IOR_BPC			8			/* Bits per char */
-#define IOR_PHYS_BITS		(IOR_BPC * sizeof(phys_addr_t))
-#define IOR_DMA_BITS		(IOR_BPC * sizeof(dma_addr_t))
-
-/*
- * Define the granularity of physical/DMA mapping in terms of the number
- * of bits that defines the offset within a grain. These will be the
- * least significant bits of the address. The rest of a physical or DMA
- * address will be used to index into an appropriate table to find the
- * offset to add to the address to yield the corresponding DMA or physical
- * address, respectively.
- */
-#define IOR_LSBITS		22			/* Bits in a grain */
-
-/*
- * Compute the number of most significant address bits after removing those
- * used for the offset within a grain and then compute the number of table
- * entries for the conversion.
- */
-#define IOR_PHYS_MSBITS		(IOR_PHYS_BITS - IOR_LSBITS)
-#define IOR_NUM_PHYS_TO_DMA	((phys_addr_t) 1 << IOR_PHYS_MSBITS)
-
-#define IOR_DMA_MSBITS		(IOR_DMA_BITS - IOR_LSBITS)
-#define IOR_NUM_DMA_TO_PHYS	((dma_addr_t) 1 << IOR_DMA_MSBITS)
-
-/*
- * Define data structures used as elements in the arrays for the conversion
- * between physical and DMA addresses. We do some slightly fancy math to
- * compute the width of the offset element of the conversion tables so
- * that we can have the smallest conversion tables. Next, round up the
- * sizes to the next higher power of two, i.e. the offset element will have
- * 8, 16, 32, 64, etc. bits. This eliminates the need to mask off any
- * bits.  Finally, we compute a shift value that puts the most significant
- * bits of the offset into the most significant bits of the offset element.
- * This makes it more efficient on processors without barrel shifters and
- * easier to see the values if the conversion table is dumped in binary.
- */
-#define _IOR_OFFSET_WIDTH(n)	(1 << order_base_2(n))
-#define IOR_OFFSET_WIDTH(n) \
-	(_IOR_OFFSET_WIDTH(n) < 8 ? 8 : _IOR_OFFSET_WIDTH(n))
-
-#define IOR_PHYS_OFFSET_BITS	IOR_OFFSET_WIDTH(IOR_PHYS_MSBITS)
-#define IOR_PHYS_SHIFT		(IOR_PHYS_BITS - IOR_PHYS_OFFSET_BITS)
-
-#define IOR_DMA_OFFSET_BITS	IOR_OFFSET_WIDTH(IOR_DMA_MSBITS)
-#define IOR_DMA_SHIFT		(IOR_DMA_BITS - IOR_DMA_OFFSET_BITS)
-
-struct ior_phys_to_dma {
-	dma_addr_t offset:IOR_DMA_OFFSET_BITS __packed
-		__aligned((IOR_DMA_OFFSET_BITS / IOR_BPC));
-};
-
-struct ior_dma_to_phys {
-	dma_addr_t offset:IOR_PHYS_OFFSET_BITS __packed
-		__aligned((IOR_PHYS_OFFSET_BITS / IOR_BPC));
-};
-
-extern struct ior_phys_to_dma _ior_phys_to_dma[IOR_NUM_PHYS_TO_DMA];
-extern struct ior_dma_to_phys _ior_dma_to_phys[IOR_NUM_DMA_TO_PHYS];
-
-static inline dma_addr_t _phys_to_dma_offset_raw(phys_addr_t phys)
-{
-	return (dma_addr_t)_ior_phys_to_dma[phys >> IOR_LSBITS].offset;
-}
-
-static inline dma_addr_t _dma_to_phys_offset_raw(dma_addr_t dma)
-{
-	return (dma_addr_t)_ior_dma_to_phys[dma >> IOR_LSBITS].offset;
-}
-
-/* These are not portable and should not be used in drivers. Drivers should
- * be using ioremap() and friends to map physical addresses to virtual
- * addresses and dma_map*() and friends to map virtual addresses into DMA
- * addresses and back.
- */
-static inline dma_addr_t phys_to_dma(phys_addr_t phys)
-{
-	return phys + (_phys_to_dma_offset_raw(phys) << IOR_PHYS_SHIFT);
-}
-
-static inline phys_addr_t dma_to_phys(dma_addr_t dma)
-{
-	return dma + (_dma_to_phys_offset_raw(dma) << IOR_DMA_SHIFT);
-}
-
-extern void ioremap_add_map(dma_addr_t phys, phys_addr_t alias,
-	dma_addr_t size);
-
-/*
- * Allow physical addresses to be fixed up to help peripherals located
- * outside the low 32-bit range -- generic pass-through version.
- */
-static inline phys_t fixup_bigphys_addr(phys_t phys_addr, phys_t size)
-{
-	return phys_addr;
-}
-
-/*
- * Handle the special case of addresses the area aliased into the first
- * 512 MiB of the processor's physical address space. These turn into either
- * kseg0 or kseg1 addresses, depending on flags.
- */
-static inline void __iomem *plat_ioremap(phys_t start, unsigned long size,
-	unsigned long flags)
-{
-	phys_addr_t start_offset;
-	void __iomem *result = NULL;
-
-	/* Start by checking to see whether this is an aliased address */
-	start_offset = _dma_to_phys_offset_raw(start);
-
-	/*
-	 * If:
-	 * o	the memory is aliased into the first 512 MiB, and
-	 * o	the start and end are in the same RAM bank, and
-	 * o	we don't have a zero size or wrap around, and
-	 * o	we are supposed to create an uncached mapping,
-	 *	handle this is a kseg0 or kseg1 address
-	 */
-	if (start_offset != 0) {
-		phys_addr_t last;
-		dma_addr_t dma_to_phys_offset;
-
-		last = start + size - 1;
-		dma_to_phys_offset =
-			_dma_to_phys_offset_raw(last) << IOR_DMA_SHIFT;
-
-		if (dma_to_phys_offset == start_offset &&
-			size != 0 && start <= last) {
-			phys_t adjusted_start;
-			adjusted_start = start + start_offset;
-			if (flags == _CACHE_UNCACHED)
-				result = (void __iomem *) (unsigned long)
-					CKSEG1ADDR(adjusted_start);
-			else
-				result = (void __iomem *) (unsigned long)
-					CKSEG0ADDR(adjusted_start);
-		}
-	}
-
-	return result;
-}
-
-static inline int plat_iounmap(const volatile void __iomem *addr)
-{
-	return 0;
-}
-#endif /* __ASM_MACH_POWERTV_IOREMAP_H */
diff --git a/arch/mips/include/asm/mach-powertv/irq.h b/arch/mips/include/asm/mach-powertv/irq.h
deleted file mode 100644
index 4bd5d0c61a91..000000000000
--- a/arch/mips/include/asm/mach-powertv/irq.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (C) 2009  Cisco Systems, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#ifndef _ASM_MACH_POWERTV_IRQ_H
-#define _ASM_MACH_POWERTV_IRQ_H
-#include <asm/mach-powertv/interrupts.h>
-
-#define MIPS_CPU_IRQ_BASE	ibase
-#define NR_IRQS			127
-#endif
diff --git a/arch/mips/include/asm/mach-powertv/powertv-clock.h b/arch/mips/include/asm/mach-powertv/powertv-clock.h
deleted file mode 100644
index 6f3e9a0fcf8c..000000000000
--- a/arch/mips/include/asm/mach-powertv/powertv-clock.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * Copyright (C) 2009  Cisco Systems, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-/*
- * Local definitions for the powertv PCI code
- */
-
-#ifndef _POWERTV_PCI_POWERTV_PCI_H_
-#define _POWERTV_PCI_POWERTV_PCI_H_
-extern int asic_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
-extern int asic_pcie_init(void);
-extern int asic_pcie_init(void);
-
-extern int log_level;
-#endif
diff --git a/arch/mips/include/asm/mach-powertv/war.h b/arch/mips/include/asm/mach-powertv/war.h
deleted file mode 100644
index c5651c8e58d1..000000000000
--- a/arch/mips/include/asm/mach-powertv/war.h
+++ /dev/null
@@ -1,27 +0,0 @@
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * This version for the PowerTV platform copied from the Malta version.
- *
- * Copyright (C) 2002, 2004, 2007 by Ralf Baechle <ralf@linux-mips.org>
- * Portions copyright (C) 2009 Cisco Systems, Inc.
- */
-#ifndef __ASM_MACH_POWERTV_WAR_H
-#define __ASM_MACH_POWERTV_WAR_H
-
-#define R4600_V1_INDEX_ICACHEOP_WAR	0
-#define R4600_V1_HIT_CACHEOP_WAR	0
-#define R4600_V2_HIT_CACHEOP_WAR	0
-#define R5432_CP0_INTERRUPT_WAR		0
-#define BCM1250_M3_WAR			0
-#define SIBYTE_1956_WAR			0
-#define MIPS4K_ICACHE_REFILL_WAR	1
-#define MIPS_CACHE_SYNC_WAR		1
-#define TX49XX_ICACHE_INDEX_INV_WAR	0
-#define ICACHE_REFILLS_WORKAROUND_WAR	1
-#define R10000_LLSC_WAR			0
-#define MIPS34K_MISSED_ITLB_WAR		0
-
-#endif /* __ASM_MACH_POWERTV_WAR_H */
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index 81773a4508f4..1c1b71752c84 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -26,7 +26,6 @@ obj-$(CONFIG_CEVT_TXX9)		+= cevt-txx9.o
 obj-$(CONFIG_CSRC_BCM1480)	+= csrc-bcm1480.o
 obj-$(CONFIG_CSRC_GIC)		+= csrc-gic.o
 obj-$(CONFIG_CSRC_IOASIC)	+= csrc-ioasic.o
-obj-$(CONFIG_CSRC_POWERTV)	+= csrc-powertv.o
 obj-$(CONFIG_CSRC_R4K)		+= csrc-r4k.o
 obj-$(CONFIG_CSRC_SB1250)	+= csrc-sb1250.o
 obj-$(CONFIG_SYNC_R4K)		+= sync-r4k.o
diff --git a/arch/mips/kernel/csrc-powertv.c b/arch/mips/kernel/csrc-powertv.c
deleted file mode 100644
index abd99ea911ae..000000000000
--- a/arch/mips/kernel/csrc-powertv.c
+++ /dev/null
@@ -1,151 +0,0 @@
-/*
- * Copyright (C) 2008 Scientific-Atlanta, Inc.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
- */
-/*
- * The file comes from kernel/csrc-r4k.c
- */
-#include <linux/clocksource.h>
-#include <linux/init.h>
-
-#include <asm/time.h>			/* Not included in linux/time.h */
-
-#include <asm/mach-powertv/asic_regs.h>
-#include "powertv-clock.h"
-
-/* MIPS PLL Register Definitions */
-#define PLL_GET_M(x)		(((x) >> 8) & 0x000000FF)
-#define PLL_GET_N(x)		(((x) >> 16) & 0x000000FF)
-#define PLL_GET_P(x)		(((x) >> 24) & 0x00000007)
-
-/*
- * returns:  Clock frequency in kHz
- */
-unsigned int __init mips_get_pll_freq(void)
-{
-	unsigned int pll_reg, m, n, p;
-	unsigned int fin = 54000; /* Base frequency in kHz */
-	unsigned int fout;
-
-	/* Read PLL register setting */
-	pll_reg = asic_read(mips_pll_setup);
-	m = PLL_GET_M(pll_reg);
-	n = PLL_GET_N(pll_reg);
-	p = PLL_GET_P(pll_reg);
-	pr_info("MIPS PLL Register:0x%x	 M=%d  N=%d  P=%d\n", pll_reg, m, n, p);
-
-	/* Calculate clock frequency = (2 * N * 54MHz) / (M * (2**P)) */
-	fout = ((2 * n * fin) / (m * (0x01 << p)));
-
-	pr_info("MIPS Clock Freq=%d kHz\n", fout);
-
-	return fout;
-}
-
-static cycle_t c0_hpt_read(struct clocksource *cs)
-{
-	return read_c0_count();
-}
-
-static struct clocksource clocksource_mips = {
-	.name		= "powertv-counter",
-	.read		= c0_hpt_read,
-	.mask		= CLOCKSOURCE_MASK(32),
-	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
-};
-
-static void __init powertv_c0_hpt_clocksource_init(void)
-{
-	unsigned int pll_freq = mips_get_pll_freq();
-
-	pr_info("CPU frequency %d.%02d MHz\n", pll_freq / 1000,
-		(pll_freq % 1000) * 100 / 1000);
-
-	mips_hpt_frequency = pll_freq / 2 * 1000;
-
-	clocksource_mips.rating = 200 + mips_hpt_frequency / 10000000;
-
-	clocksource_register_hz(&clocksource_mips, mips_hpt_frequency);
-}
-
-/**
- * struct tim_c - free running counter
- * @hi: High 16 bits of the counter
- * @lo: Low 32 bits of the counter
- *
- * Lays out the structure of the free running counter in memory. This counter
- * increments at a rate of 27 MHz/8 on all platforms.
- */
-struct tim_c {
-	unsigned int hi;
-	unsigned int lo;
-};
-
-static struct tim_c *tim_c;
-
-static cycle_t tim_c_read(struct clocksource *cs)
-{
-	unsigned int hi;
-	unsigned int next_hi;
-	unsigned int lo;
-
-	hi = readl(&tim_c->hi);
-
-	for (;;) {
-		lo = readl(&tim_c->lo);
-		next_hi = readl(&tim_c->hi);
-		if (next_hi == hi)
-			break;
-		hi = next_hi;
-	}
-
-pr_crit("%s: read %llx\n", __func__, ((u64) hi << 32) | lo);
-	return ((u64) hi << 32) | lo;
-}
-
-#define TIM_C_SIZE		48		/* # bits in the timer */
-
-static struct clocksource clocksource_tim_c = {
-	.name		= "powertv-tim_c",
-	.read		= tim_c_read,
-	.mask		= CLOCKSOURCE_MASK(TIM_C_SIZE),
-	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
-};
-
-/**
- * powertv_tim_c_clocksource_init - set up a clock source for the TIM_C clock
- *
- * We know that TIM_C counts at 27 MHz/8, so each cycle corresponds to
- * 1 / (27,000,000/8) seconds.
- */
-static void __init powertv_tim_c_clocksource_init(void)
-{
-	const unsigned long	counts_per_second = 27000000 / 8;
-
-	clocksource_tim_c.rating = 200;
-
-	clocksource_register_hz(&clocksource_tim_c, counts_per_second);
-	tim_c = (struct tim_c *) asic_reg_addr(tim_ch);
-}
-
-/**
- powertv_clocksource_init - initialize all clocksources
- */
-void __init powertv_clocksource_init(void)
-{
-	powertv_c0_hpt_clocksource_init();
-	powertv_tim_c_clocksource_init();
-}
diff --git a/arch/mips/powertv/Kconfig b/arch/mips/powertv/Kconfig
deleted file mode 100644
index dd91fbacbcba..000000000000
--- a/arch/mips/powertv/Kconfig
+++ /dev/null
@@ -1,12 +0,0 @@
-config BOOTLOADER_FAMILY
-	string "POWERTV Bootloader Family string"
-	default "85"
-	depends on POWERTV
-	help
-	  This value should be specified when the bootloader driver is disabled
-	  and must be exactly two characters long. Families supported are:
-	    R1 - RNG-100  R2 - RNG-200
-	    A1 - Class A  B1 - Class B
-	    E1 - Class E  F1 - Class F
-	    44 - 45xx     46 - 46xx
-	    85 - 85xx     86 - 86xx
diff --git a/arch/mips/powertv/Makefile b/arch/mips/powertv/Makefile
deleted file mode 100644
index 39ca9f8d63ae..000000000000
--- a/arch/mips/powertv/Makefile
+++ /dev/null
@@ -1,29 +0,0 @@
-#
-# Carsten Langgaard, carstenl@mips.com
-# Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
-#
-# Carsten Langgaard, carstenl@mips.com
-# Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
-# Portions copyright (C)  2009 Cisco Systems, Inc.
-#
-# This program is free software; you can distribute it and/or modify it
-# under the terms of the GNU General Public License (Version 2) as
-# published by the Free Software Foundation.
-#
-# This program is distributed in the hope it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
-# for more details.
-#
-# You should have received a copy of the GNU General Public License along
-# with this program; if not, write to the Free Software Foundation, Inc.,
-# 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
-#
-# Makefile for the Cisco PowerTV-specific kernel interface routines
-# under Linux.
-#
-
-obj-y += init.o ioremap.o memory.o powertv_setup.o reset.o time.o \
-	asic/ pci/
-
-obj-$(CONFIG_USB) += powertv-usb.o
diff --git a/arch/mips/powertv/Platform b/arch/mips/powertv/Platform
deleted file mode 100644
index 4eb5af1d8eea..000000000000
--- a/arch/mips/powertv/Platform
+++ /dev/null
@@ -1,7 +0,0 @@
-#
-# Cisco PowerTV Platform
-#
-platform-$(CONFIG_POWERTV)	+= powertv/
-cflags-$(CONFIG_POWERTV)	+=					\
-		-I$(srctree)/arch/mips/include/asm/mach-powertv
-load-$(CONFIG_POWERTV)		+= 0xffffffff90800000
diff --git a/arch/mips/powertv/asic/Makefile b/arch/mips/powertv/asic/Makefile
deleted file mode 100644
index 35dcc53eb25f..000000000000
--- a/arch/mips/powertv/asic/Makefile
+++ /dev/null
@@ -1,21 +0,0 @@
-#
-# Copyright (C) 2009  Scientific-Atlanta, Inc.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
-#
-
-obj-y += asic-calliope.o asic-cronus.o asic-gaia.o asic-zeus.o \
-	asic_devices.o asic_int.o irq_asic.o prealloc-calliope.o \
-	prealloc-cronus.o prealloc-cronuslite.o prealloc-gaia.o prealloc-zeus.o
diff --git a/arch/mips/powertv/asic/asic-calliope.c b/arch/mips/powertv/asic/asic-calliope.c
deleted file mode 100644
index 2f539b43f56b..000000000000
--- a/arch/mips/powertv/asic/asic-calliope.c
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
- * Locations of devices in the Calliope ASIC.
- *
- * Copyright (C) 2005-2009 Scientific-Atlanta, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Author:	 Ken Eppinett
- *		 David Schleef <ds@schleef.org>
- *
- * Description:	 Defines the platform resources for the SA settop.
- */
-
-#include <linux/init.h>
-#include <asm/mach-powertv/asic.h>
-
-#define CALLIOPE_ADDR(x)	(CALLIOPE_IO_BASE + (x))
-
-const struct register_map calliope_register_map __initconst = {
-	.eic_slow0_strt_add = {.phys = CALLIOPE_ADDR(0x800000)},
-	.eic_cfg_bits = {.phys = CALLIOPE_ADDR(0x800038)},
-	.eic_ready_status = {.phys = CALLIOPE_ADDR(0x80004c)},
-
-	.chipver3 = {.phys = CALLIOPE_ADDR(0xA00800)},
-	.chipver2 = {.phys = CALLIOPE_ADDR(0xA00804)},
-	.chipver1 = {.phys = CALLIOPE_ADDR(0xA00808)},
-	.chipver0 = {.phys = CALLIOPE_ADDR(0xA0080c)},
-
-	/* The registers of IRBlaster */
-	.uart1_intstat = {.phys = CALLIOPE_ADDR(0xA01800)},
-	.uart1_inten = {.phys = CALLIOPE_ADDR(0xA01804)},
-	.uart1_config1 = {.phys = CALLIOPE_ADDR(0xA01808)},
-	.uart1_config2 = {.phys = CALLIOPE_ADDR(0xA0180C)},
-	.uart1_divisorhi = {.phys = CALLIOPE_ADDR(0xA01810)},
-	.uart1_divisorlo = {.phys = CALLIOPE_ADDR(0xA01814)},
-	.uart1_data = {.phys = CALLIOPE_ADDR(0xA01818)},
-	.uart1_status = {.phys = CALLIOPE_ADDR(0xA0181C)},
-
-	.int_stat_3 = {.phys = CALLIOPE_ADDR(0xA02800)},
-	.int_stat_2 = {.phys = CALLIOPE_ADDR(0xA02804)},
-	.int_stat_1 = {.phys = CALLIOPE_ADDR(0xA02808)},
-	.int_stat_0 = {.phys = CALLIOPE_ADDR(0xA0280c)},
-	.int_config = {.phys = CALLIOPE_ADDR(0xA02810)},
-	.int_int_scan = {.phys = CALLIOPE_ADDR(0xA02818)},
-	.ien_int_3 = {.phys = CALLIOPE_ADDR(0xA02830)},
-	.ien_int_2 = {.phys = CALLIOPE_ADDR(0xA02834)},
-	.ien_int_1 = {.phys = CALLIOPE_ADDR(0xA02838)},
-	.ien_int_0 = {.phys = CALLIOPE_ADDR(0xA0283c)},
-	.int_level_3_3 = {.phys = CALLIOPE_ADDR(0xA02880)},
-	.int_level_3_2 = {.phys = CALLIOPE_ADDR(0xA02884)},
-	.int_level_3_1 = {.phys = CALLIOPE_ADDR(0xA02888)},
-	.int_level_3_0 = {.phys = CALLIOPE_ADDR(0xA0288c)},
-	.int_level_2_3 = {.phys = CALLIOPE_ADDR(0xA02890)},
-	.int_level_2_2 = {.phys = CALLIOPE_ADDR(0xA02894)},
-	.int_level_2_1 = {.phys = CALLIOPE_ADDR(0xA02898)},
-	.int_level_2_0 = {.phys = CALLIOPE_ADDR(0xA0289c)},
-	.int_level_1_3 = {.phys = CALLIOPE_ADDR(0xA028a0)},
-	.int_level_1_2 = {.phys = CALLIOPE_ADDR(0xA028a4)},
-	.int_level_1_1 = {.phys = CALLIOPE_ADDR(0xA028a8)},
-	.int_level_1_0 = {.phys = CALLIOPE_ADDR(0xA028ac)},
-	.int_level_0_3 = {.phys = CALLIOPE_ADDR(0xA028b0)},
-	.int_level_0_2 = {.phys = CALLIOPE_ADDR(0xA028b4)},
-	.int_level_0_1 = {.phys = CALLIOPE_ADDR(0xA028b8)},
-	.int_level_0_0 = {.phys = CALLIOPE_ADDR(0xA028bc)},
-	.int_docsis_en = {.phys = CALLIOPE_ADDR(0xA028F4)},
-
-	.mips_pll_setup = {.phys = CALLIOPE_ADDR(0x980000)},
-	.fs432x4b4_usb_ctl = {.phys = CALLIOPE_ADDR(0x980030)},
-	.test_bus = {.phys = CALLIOPE_ADDR(0x9800CC)},
-	.crt_spare = {.phys = CALLIOPE_ADDR(0x9800d4)},
-	.usb2_ohci_int_mask = {.phys = CALLIOPE_ADDR(0x9A000c)},
-	.usb2_strap = {.phys = CALLIOPE_ADDR(0x9A0014)},
-	.ehci_hcapbase = {.phys = CALLIOPE_ADDR(0x9BFE00)},
-	.ohci_hc_revision = {.phys = CALLIOPE_ADDR(0x9BFC00)},
-	.bcm1_bs_lmi_steer = {.phys = CALLIOPE_ADDR(0x9E0004)},
-	.usb2_control = {.phys = CALLIOPE_ADDR(0x9E0054)},
-	.usb2_stbus_obc = {.phys = CALLIOPE_ADDR(0x9BFF00)},
-	.usb2_stbus_mess_size = {.phys = CALLIOPE_ADDR(0x9BFF04)},
-	.usb2_stbus_chunk_size = {.phys = CALLIOPE_ADDR(0x9BFF08)},
-
-	.pcie_regs = {.phys = 0x000000},	/* -doesn't exist- */
-	.tim_ch = {.phys = CALLIOPE_ADDR(0xA02C10)},
-	.tim_cl = {.phys = CALLIOPE_ADDR(0xA02C14)},
-	.gpio_dout = {.phys = CALLIOPE_ADDR(0xA02c20)},
-	.gpio_din = {.phys = CALLIOPE_ADDR(0xA02c24)},
-	.gpio_dir = {.phys = CALLIOPE_ADDR(0xA02c2C)},
-	.watchdog = {.phys = CALLIOPE_ADDR(0xA02c30)},
-	.front_panel = {.phys = 0x000000},	/* -not used- */
-};
diff --git a/arch/mips/powertv/asic/asic-cronus.c b/arch/mips/powertv/asic/asic-cronus.c
deleted file mode 100644
index 7f8f3429b35a..000000000000
--- a/arch/mips/powertv/asic/asic-cronus.c
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
- * Locations of devices in the Cronus ASIC
- *
- * Copyright (C) 2005-2009 Scientific-Atlanta, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Author:	 Ken Eppinett
- *		 David Schleef <ds@schleef.org>
- *
- * Description:	 Defines the platform resources for the SA settop.
- */
-
-#include <linux/init.h>
-#include <asm/mach-powertv/asic.h>
-
-#define CRONUS_ADDR(x)	(CRONUS_IO_BASE + (x))
-
-const struct register_map cronus_register_map __initconst = {
-	.eic_slow0_strt_add = {.phys = CRONUS_ADDR(0x000000)},
-	.eic_cfg_bits = {.phys = CRONUS_ADDR(0x000038)},
-	.eic_ready_status = {.phys = CRONUS_ADDR(0x00004C)},
-
-	.chipver3 = {.phys = CRONUS_ADDR(0x2A0800)},
-	.chipver2 = {.phys = CRONUS_ADDR(0x2A0804)},
-	.chipver1 = {.phys = CRONUS_ADDR(0x2A0808)},
-	.chipver0 = {.phys = CRONUS_ADDR(0x2A080C)},
-
-	/* The registers of IRBlaster */
-	.uart1_intstat = {.phys = CRONUS_ADDR(0x2A1800)},
-	.uart1_inten = {.phys = CRONUS_ADDR(0x2A1804)},
-	.uart1_config1 = {.phys = CRONUS_ADDR(0x2A1808)},
-	.uart1_config2 = {.phys = CRONUS_ADDR(0x2A180C)},
-	.uart1_divisorhi = {.phys = CRONUS_ADDR(0x2A1810)},
-	.uart1_divisorlo = {.phys = CRONUS_ADDR(0x2A1814)},
-	.uart1_data = {.phys = CRONUS_ADDR(0x2A1818)},
-	.uart1_status = {.phys = CRONUS_ADDR(0x2A181C)},
-
-	.int_stat_3 = {.phys = CRONUS_ADDR(0x2A2800)},
-	.int_stat_2 = {.phys = CRONUS_ADDR(0x2A2804)},
-	.int_stat_1 = {.phys = CRONUS_ADDR(0x2A2808)},
-	.int_stat_0 = {.phys = CRONUS_ADDR(0x2A280C)},
-	.int_config = {.phys = CRONUS_ADDR(0x2A2810)},
-	.int_int_scan = {.phys = CRONUS_ADDR(0x2A2818)},
-	.ien_int_3 = {.phys = CRONUS_ADDR(0x2A2830)},
-	.ien_int_2 = {.phys = CRONUS_ADDR(0x2A2834)},
-	.ien_int_1 = {.phys = CRONUS_ADDR(0x2A2838)},
-	.ien_int_0 = {.phys = CRONUS_ADDR(0x2A283C)},
-	.int_level_3_3 = {.phys = CRONUS_ADDR(0x2A2880)},
-	.int_level_3_2 = {.phys = CRONUS_ADDR(0x2A2884)},
-	.int_level_3_1 = {.phys = CRONUS_ADDR(0x2A2888)},
-	.int_level_3_0 = {.phys = CRONUS_ADDR(0x2A288C)},
-	.int_level_2_3 = {.phys = CRONUS_ADDR(0x2A2890)},
-	.int_level_2_2 = {.phys = CRONUS_ADDR(0x2A2894)},
-	.int_level_2_1 = {.phys = CRONUS_ADDR(0x2A2898)},
-	.int_level_2_0 = {.phys = CRONUS_ADDR(0x2A289C)},
-	.int_level_1_3 = {.phys = CRONUS_ADDR(0x2A28A0)},
-	.int_level_1_2 = {.phys = CRONUS_ADDR(0x2A28A4)},
-	.int_level_1_1 = {.phys = CRONUS_ADDR(0x2A28A8)},
-	.int_level_1_0 = {.phys = CRONUS_ADDR(0x2A28AC)},
-	.int_level_0_3 = {.phys = CRONUS_ADDR(0x2A28B0)},
-	.int_level_0_2 = {.phys = CRONUS_ADDR(0x2A28B4)},
-	.int_level_0_1 = {.phys = CRONUS_ADDR(0x2A28B8)},
-	.int_level_0_0 = {.phys = CRONUS_ADDR(0x2A28BC)},
-	.int_docsis_en = {.phys = CRONUS_ADDR(0x2A28F4)},
-
-	.mips_pll_setup = {.phys = CRONUS_ADDR(0x1C0000)},
-	.fs432x4b4_usb_ctl = {.phys = CRONUS_ADDR(0x1C0028)},
-	.test_bus = {.phys = CRONUS_ADDR(0x1C00CC)},
-	.crt_spare = {.phys = CRONUS_ADDR(0x1c00d4)},
-	.usb2_ohci_int_mask = {.phys = CRONUS_ADDR(0x20000C)},
-	.usb2_strap = {.phys = CRONUS_ADDR(0x200014)},
-	.ehci_hcapbase = {.phys = CRONUS_ADDR(0x21FE00)},
-	.ohci_hc_revision = {.phys = CRONUS_ADDR(0x21fc00)},
-	.bcm1_bs_lmi_steer = {.phys = CRONUS_ADDR(0x2E0008)},
-	.usb2_control = {.phys = CRONUS_ADDR(0x2E004C)},
-	.usb2_stbus_obc = {.phys = CRONUS_ADDR(0x21FF00)},
-	.usb2_stbus_mess_size = {.phys = CRONUS_ADDR(0x21FF04)},
-	.usb2_stbus_chunk_size = {.phys = CRONUS_ADDR(0x21FF08)},
-
-	.pcie_regs = {.phys = CRONUS_ADDR(0x220000)},
-	.tim_ch = {.phys = CRONUS_ADDR(0x2A2C10)},
-	.tim_cl = {.phys = CRONUS_ADDR(0x2A2C14)},
-	.gpio_dout = {.phys = CRONUS_ADDR(0x2A2C20)},
-	.gpio_din = {.phys = CRONUS_ADDR(0x2A2C24)},
-	.gpio_dir = {.phys = CRONUS_ADDR(0x2A2C2C)},
-	.watchdog = {.phys = CRONUS_ADDR(0x2A2C30)},
-	.front_panel = {.phys = CRONUS_ADDR(0x2A3800)},
-};
diff --git a/arch/mips/powertv/asic/asic-gaia.c b/arch/mips/powertv/asic/asic-gaia.c
deleted file mode 100644
index 1265b49012e6..000000000000
--- a/arch/mips/powertv/asic/asic-gaia.c
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * Locations of devices in the Gaia ASIC
- *
- * Copyright (C) 2005-2009 Scientific-Atlanta, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Author:	 David VomLehn
- */
-
-#include <linux/init.h>
-#include <asm/mach-powertv/asic.h>
-
-const struct register_map gaia_register_map __initconst = {
-	.eic_slow0_strt_add = {.phys = GAIA_IO_BASE + 0x000000},
-	.eic_cfg_bits = {.phys = GAIA_IO_BASE + 0x000038},
-	.eic_ready_status = {.phys = GAIA_IO_BASE + 0x00004C},
-
-	.chipver3 = {.phys = GAIA_IO_BASE + 0x2A0800},
-	.chipver2 = {.phys = GAIA_IO_BASE + 0x2A0804},
-	.chipver1 = {.phys = GAIA_IO_BASE + 0x2A0808},
-	.chipver0 = {.phys = GAIA_IO_BASE + 0x2A080C},
-
-	/* The registers of IRBlaster */
-	.uart1_intstat = {.phys = GAIA_IO_BASE + 0x2A1800},
-	.uart1_inten = {.phys = GAIA_IO_BASE + 0x2A1804},
-	.uart1_config1 = {.phys = GAIA_IO_BASE + 0x2A1808},
-	.uart1_config2 = {.phys = GAIA_IO_BASE + 0x2A180C},
-	.uart1_divisorhi = {.phys = GAIA_IO_BASE + 0x2A1810},
-	.uart1_divisorlo = {.phys = GAIA_IO_BASE + 0x2A1814},
-	.uart1_data = {.phys = GAIA_IO_BASE + 0x2A1818},
-	.uart1_status = {.phys = GAIA_IO_BASE + 0x2A181C},
-
-	.int_stat_3 = {.phys = GAIA_IO_BASE + 0x2A2800},
-	.int_stat_2 = {.phys = GAIA_IO_BASE + 0x2A2804},
-	.int_stat_1 = {.phys = GAIA_IO_BASE + 0x2A2808},
-	.int_stat_0 = {.phys = GAIA_IO_BASE + 0x2A280C},
-	.int_config = {.phys = GAIA_IO_BASE + 0x2A2810},
-	.int_int_scan = {.phys = GAIA_IO_BASE + 0x2A2818},
-	.ien_int_3 = {.phys = GAIA_IO_BASE + 0x2A2830},
-	.ien_int_2 = {.phys = GAIA_IO_BASE + 0x2A2834},
-	.ien_int_1 = {.phys = GAIA_IO_BASE + 0x2A2838},
-	.ien_int_0 = {.phys = GAIA_IO_BASE + 0x2A283C},
-	.int_level_3_3 = {.phys = GAIA_IO_BASE + 0x2A2880},
-	.int_level_3_2 = {.phys = GAIA_IO_BASE + 0x2A2884},
-	.int_level_3_1 = {.phys = GAIA_IO_BASE + 0x2A2888},
-	.int_level_3_0 = {.phys = GAIA_IO_BASE + 0x2A288C},
-	.int_level_2_3 = {.phys = GAIA_IO_BASE + 0x2A2890},
-	.int_level_2_2 = {.phys = GAIA_IO_BASE + 0x2A2894},
-	.int_level_2_1 = {.phys = GAIA_IO_BASE + 0x2A2898},
-	.int_level_2_0 = {.phys = GAIA_IO_BASE + 0x2A289C},
-	.int_level_1_3 = {.phys = GAIA_IO_BASE + 0x2A28A0},
-	.int_level_1_2 = {.phys = GAIA_IO_BASE + 0x2A28A4},
-	.int_level_1_1 = {.phys = GAIA_IO_BASE + 0x2A28A8},
-	.int_level_1_0 = {.phys = GAIA_IO_BASE + 0x2A28AC},
-	.int_level_0_3 = {.phys = GAIA_IO_BASE + 0x2A28B0},
-	.int_level_0_2 = {.phys = GAIA_IO_BASE + 0x2A28B4},
-	.int_level_0_1 = {.phys = GAIA_IO_BASE + 0x2A28B8},
-	.int_level_0_0 = {.phys = GAIA_IO_BASE + 0x2A28BC},
-	.int_docsis_en = {.phys = GAIA_IO_BASE + 0x2A28F4},
-
-	.mips_pll_setup = {.phys = GAIA_IO_BASE + 0x1C0000},
-	.fs432x4b4_usb_ctl = {.phys = GAIA_IO_BASE + 0x1C0024},
-	.test_bus = {.phys = GAIA_IO_BASE + 0x1C00CC},
-	.crt_spare = {.phys = GAIA_IO_BASE + 0x1c0108},
-	.usb2_ohci_int_mask = {.phys = GAIA_IO_BASE + 0x20000C},
-	.usb2_strap = {.phys = GAIA_IO_BASE + 0x200014},
-	.ehci_hcapbase = {.phys = GAIA_IO_BASE + 0x21FE00},
-	.ohci_hc_revision = {.phys = GAIA_IO_BASE + 0x21fc00},
-	.bcm1_bs_lmi_steer = {.phys = GAIA_IO_BASE + 0x2E0004},
-	.usb2_control = {.phys = GAIA_IO_BASE + 0x2E004C},
-	.usb2_stbus_obc = {.phys = GAIA_IO_BASE + 0x21FF00},
-	.usb2_stbus_mess_size = {.phys = GAIA_IO_BASE + 0x21FF04},
-	.usb2_stbus_chunk_size = {.phys = GAIA_IO_BASE + 0x21FF08},
-
-	.pcie_regs = {.phys = GAIA_IO_BASE + 0x220000},
-	.tim_ch = {.phys = GAIA_IO_BASE + 0x2A2C10},
-	.tim_cl = {.phys = GAIA_IO_BASE + 0x2A2C14},
-	.gpio_dout = {.phys = GAIA_IO_BASE + 0x2A2C20},
-	.gpio_din = {.phys = GAIA_IO_BASE + 0x2A2C24},
-	.gpio_dir = {.phys = GAIA_IO_BASE + 0x2A2C2C},
-	.watchdog = {.phys = GAIA_IO_BASE + 0x2A2C30},
-	.front_panel = {.phys = GAIA_IO_BASE + 0x2A3800},
-};
diff --git a/arch/mips/powertv/asic/asic-zeus.c b/arch/mips/powertv/asic/asic-zeus.c
deleted file mode 100644
index 14e7de137e03..000000000000
--- a/arch/mips/powertv/asic/asic-zeus.c
+++ /dev/null
@@ -1,101 +0,0 @@
-/*
- * Locations of devices in the Zeus ASIC
- *
- * Copyright (C) 2005-2009 Scientific-Atlanta, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Author:	 Ken Eppinett
- *		 David Schleef <ds@schleef.org>
- *
- * Description:	 Defines the platform resources for the SA settop.
- */
-
-#include <linux/init.h>
-#include <asm/mach-powertv/asic.h>
-
-#define ZEUS_ADDR(x)	(ZEUS_IO_BASE + (x))
-
-const struct register_map zeus_register_map __initconst = {
-	.eic_slow0_strt_add = {.phys = ZEUS_ADDR(0x000000)},
-	.eic_cfg_bits = {.phys = ZEUS_ADDR(0x000038)},
-	.eic_ready_status = {.phys = ZEUS_ADDR(0x00004c)},
-
-	.chipver3 = {.phys = ZEUS_ADDR(0x280800)},
-	.chipver2 = {.phys = ZEUS_ADDR(0x280804)},
-	.chipver1 = {.phys = ZEUS_ADDR(0x280808)},
-	.chipver0 = {.phys = ZEUS_ADDR(0x28080c)},
-
-	/* The registers of IRBlaster */
-	.uart1_intstat = {.phys = ZEUS_ADDR(0x281800)},
-	.uart1_inten = {.phys = ZEUS_ADDR(0x281804)},
-	.uart1_config1 = {.phys = ZEUS_ADDR(0x281808)},
-	.uart1_config2 = {.phys = ZEUS_ADDR(0x28180C)},
-	.uart1_divisorhi = {.phys = ZEUS_ADDR(0x281810)},
-	.uart1_divisorlo = {.phys = ZEUS_ADDR(0x281814)},
-	.uart1_data = {.phys = ZEUS_ADDR(0x281818)},
-	.uart1_status = {.phys = ZEUS_ADDR(0x28181C)},
-
-	.int_stat_3 = {.phys = ZEUS_ADDR(0x282800)},
-	.int_stat_2 = {.phys = ZEUS_ADDR(0x282804)},
-	.int_stat_1 = {.phys = ZEUS_ADDR(0x282808)},
-	.int_stat_0 = {.phys = ZEUS_ADDR(0x28280c)},
-	.int_config = {.phys = ZEUS_ADDR(0x282810)},
-	.int_int_scan = {.phys = ZEUS_ADDR(0x282818)},
-	.ien_int_3 = {.phys = ZEUS_ADDR(0x282830)},
-	.ien_int_2 = {.phys = ZEUS_ADDR(0x282834)},
-	.ien_int_1 = {.phys = ZEUS_ADDR(0x282838)},
-	.ien_int_0 = {.phys = ZEUS_ADDR(0x28283c)},
-	.int_level_3_3 = {.phys = ZEUS_ADDR(0x282880)},
-	.int_level_3_2 = {.phys = ZEUS_ADDR(0x282884)},
-	.int_level_3_1 = {.phys = ZEUS_ADDR(0x282888)},
-	.int_level_3_0 = {.phys = ZEUS_ADDR(0x28288c)},
-	.int_level_2_3 = {.phys = ZEUS_ADDR(0x282890)},
-	.int_level_2_2 = {.phys = ZEUS_ADDR(0x282894)},
-	.int_level_2_1 = {.phys = ZEUS_ADDR(0x282898)},
-	.int_level_2_0 = {.phys = ZEUS_ADDR(0x28289c)},
-	.int_level_1_3 = {.phys = ZEUS_ADDR(0x2828a0)},
-	.int_level_1_2 = {.phys = ZEUS_ADDR(0x2828a4)},
-	.int_level_1_1 = {.phys = ZEUS_ADDR(0x2828a8)},
-	.int_level_1_0 = {.phys = ZEUS_ADDR(0x2828ac)},
-	.int_level_0_3 = {.phys = ZEUS_ADDR(0x2828b0)},
-	.int_level_0_2 = {.phys = ZEUS_ADDR(0x2828b4)},
-	.int_level_0_1 = {.phys = ZEUS_ADDR(0x2828b8)},
-	.int_level_0_0 = {.phys = ZEUS_ADDR(0x2828bc)},
-	.int_docsis_en = {.phys = ZEUS_ADDR(0x2828F4)},
-
-	.mips_pll_setup = {.phys = ZEUS_ADDR(0x1a0000)},
-	.fs432x4b4_usb_ctl = {.phys = ZEUS_ADDR(0x1a0018)},
-	.test_bus = {.phys = ZEUS_ADDR(0x1a0238)},
-	.crt_spare = {.phys = ZEUS_ADDR(0x1a0090)},
-	.usb2_ohci_int_mask = {.phys = ZEUS_ADDR(0x1e000c)},
-	.usb2_strap = {.phys = ZEUS_ADDR(0x1e0014)},
-	.ehci_hcapbase = {.phys = ZEUS_ADDR(0x1FFE00)},
-	.ohci_hc_revision = {.phys = ZEUS_ADDR(0x1FFC00)},
-	.bcm1_bs_lmi_steer = {.phys = ZEUS_ADDR(0x2C0008)},
-	.usb2_control = {.phys = ZEUS_ADDR(0x2c01a0)},
-	.usb2_stbus_obc = {.phys = ZEUS_ADDR(0x1FFF00)},
-	.usb2_stbus_mess_size = {.phys = ZEUS_ADDR(0x1FFF04)},
-	.usb2_stbus_chunk_size = {.phys = ZEUS_ADDR(0x1FFF08)},
-
-	.pcie_regs = {.phys = ZEUS_ADDR(0x200000)},
-	.tim_ch = {.phys = ZEUS_ADDR(0x282C10)},
-	.tim_cl = {.phys = ZEUS_ADDR(0x282C14)},
-	.gpio_dout = {.phys = ZEUS_ADDR(0x282c20)},
-	.gpio_din = {.phys = ZEUS_ADDR(0x282c24)},
-	.gpio_dir = {.phys = ZEUS_ADDR(0x282c2C)},
-	.watchdog = {.phys = ZEUS_ADDR(0x282c30)},
-	.front_panel = {.phys = ZEUS_ADDR(0x283800)},
-};
diff --git a/arch/mips/powertv/asic/asic_devices.c b/arch/mips/powertv/asic/asic_devices.c
deleted file mode 100644
index 8380605d597d..000000000000
--- a/arch/mips/powertv/asic/asic_devices.c
+++ /dev/null
@@ -1,549 +0,0 @@
-/*
- *
- * Description:	 Defines the platform resources for Gaia-based settops.
- *
- * Copyright (C) 2005-2009 Scientific-Atlanta, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * NOTE: The bootloader allocates persistent memory at an address which is
- * 16 MiB below the end of the highest address in KSEG0. All fixed
- * address memory reservations must avoid this region.
- */
-
-#include <linux/device.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/resource.h>
-#include <linux/serial_reg.h>
-#include <linux/io.h>
-#include <linux/bootmem.h>
-#include <linux/mm.h>
-#include <linux/platform_device.h>
-#include <linux/module.h>
-#include <asm/page.h>
-#include <linux/swap.h>
-#include <linux/highmem.h>
-#include <linux/dma-mapping.h>
-
-#include <asm/mach-powertv/asic.h>
-#include <asm/mach-powertv/asic_regs.h>
-#include <asm/mach-powertv/interrupts.h>
-
-#ifdef CONFIG_BOOTLOADER_DRIVER
-#include <asm/mach-powertv/kbldr.h>
-#endif
-#include <asm/bootinfo.h>
-
-#define BOOTLDRFAMILY(byte1, byte0) (((byte1) << 8) | (byte0))
-
-/*
- * Forward Prototypes
- */
-static void pmem_setup_resource(void);
-
-/*
- * Global Variables
- */
-enum asic_type asic;
-
-unsigned int platform_features;
-unsigned int platform_family;
-struct register_map _asic_register_map;
-EXPORT_SYMBOL(_asic_register_map);		/* Exported for testing */
-unsigned long asic_phy_base;
-unsigned long asic_base;
-EXPORT_SYMBOL(asic_base);			/* Exported for testing */
-struct resource *gp_resources;
-
-/*
- * Don't recommend to use it directly, it is usually used by kernel internally.
- * Portable code should be using interfaces such as ioremp, dma_map_single, etc.
- */
-unsigned long phys_to_dma_offset;
-EXPORT_SYMBOL(phys_to_dma_offset);
-
-/*
- *
- * IO Resource Definition
- *
- */
-
-struct resource asic_resource = {
-	.name  = "ASIC Resource",
-	.start = 0,
-	.end   = ASIC_IO_SIZE,
-	.flags = IORESOURCE_MEM,
-};
-
-/*
- * Allow override of bootloader-specified model
- * Returns zero on success, a negative errno value on failure.	This parameter
- * allows overriding of the bootloader-specified model.
- */
-static char __initdata cmdline[COMMAND_LINE_SIZE];
-
-#define FORCEFAMILY_PARAM	"forcefamily"
-
-/*
- * check_forcefamily - check for, and parse, forcefamily command line parameter
- * @forced_family:	Pointer to two-character array in which to store the
- *			value of the forcedfamily parameter, if any.
- */
-static __init int check_forcefamily(unsigned char forced_family[2])
-{
-	const char *p;
-
-	forced_family[0] = '\0';
-	forced_family[1] = '\0';
-
-	/* Check the command line for a forcefamily directive */
-	strncpy(cmdline, arcs_cmdline, COMMAND_LINE_SIZE - 1);
-	p = strstr(cmdline, FORCEFAMILY_PARAM);
-	if (p && (p != cmdline) && (*(p - 1) != ' '))
-		p = strstr(p, " " FORCEFAMILY_PARAM "=");
-
-	if (p) {
-		p += strlen(FORCEFAMILY_PARAM "=");
-
-		if (*p == '\0' || *(p + 1) == '\0' ||
-			(*(p + 2) != '\0' && *(p + 2) != ' '))
-			pr_err(FORCEFAMILY_PARAM " must be exactly two "
-				"characters long, ignoring value\n");
-
-		else {
-			forced_family[0] = *p;
-			forced_family[1] = *(p + 1);
-		}
-	}
-
-	return 0;
-}
-
-/*
- * platform_set_family - determine major platform family type.
- *
- * Returns family type; -1 if none
- * Returns the family type; -1 if none
- *
- */
-static __init noinline void platform_set_family(void)
-{
-	unsigned char forced_family[2];
-	unsigned short bootldr_family;
-
-	if (check_forcefamily(forced_family) == 0)
-		bootldr_family = BOOTLDRFAMILY(forced_family[0],
-			forced_family[1]);
-	else
-		bootldr_family = (unsigned short) BOOTLDRFAMILY(
-			CONFIG_BOOTLOADER_FAMILY[0],
-			CONFIG_BOOTLOADER_FAMILY[1]);
-
-	pr_info("Bootloader Family = 0x%04X\n", bootldr_family);
-
-	switch (bootldr_family) {
-	case BOOTLDRFAMILY('R', '1'):
-		platform_family = FAMILY_1500;
-		break;
-	case BOOTLDRFAMILY('4', '4'):
-		platform_family = FAMILY_4500;
-		break;
-	case BOOTLDRFAMILY('4', '6'):
-		platform_family = FAMILY_4600;
-		break;
-	case BOOTLDRFAMILY('A', '1'):
-		platform_family = FAMILY_4600VZA;
-		break;
-	case BOOTLDRFAMILY('8', '5'):
-		platform_family = FAMILY_8500;
-		break;
-	case BOOTLDRFAMILY('R', '2'):
-		platform_family = FAMILY_8500RNG;
-		break;
-	case BOOTLDRFAMILY('8', '6'):
-		platform_family = FAMILY_8600;
-		break;
-	case BOOTLDRFAMILY('B', '1'):
-		platform_family = FAMILY_8600VZB;
-		break;
-	case BOOTLDRFAMILY('E', '1'):
-		platform_family = FAMILY_1500VZE;
-		break;
-	case BOOTLDRFAMILY('F', '1'):
-		platform_family = FAMILY_1500VZF;
-		break;
-	case BOOTLDRFAMILY('8', '7'):
-		platform_family = FAMILY_8700;
-		break;
-	default:
-		platform_family = -1;
-	}
-}
-
-unsigned int platform_get_family(void)
-{
-	return platform_family;
-}
-EXPORT_SYMBOL(platform_get_family);
-
-/*
- * platform_get_asic - determine the ASIC type.
- *
- * Returns the ASIC type, or ASIC_UNKNOWN if unknown
- *
- */
-enum asic_type platform_get_asic(void)
-{
-	return asic;
-}
-EXPORT_SYMBOL(platform_get_asic);
-
-/*
- * set_register_map - set ASIC register configuration
- * @phys_base:	Physical address of the base of the ASIC registers
- * @map:	Description of key ASIC registers
- */
-static void __init set_register_map(unsigned long phys_base,
-	const struct register_map *map)
-{
-	asic_phy_base = phys_base;
-	_asic_register_map = *map;
-	register_map_virtualize(&_asic_register_map);
-	asic_base = (unsigned long)ioremap_nocache(phys_base, ASIC_IO_SIZE);
-}
-
-/**
- * configure_platform - configuration based on platform type.
- */
-void __init configure_platform(void)
-{
-	platform_set_family();
-
-	switch (platform_family) {
-	case FAMILY_1500:
-	case FAMILY_1500VZE:
-	case FAMILY_1500VZF:
-		platform_features = FFS_CAPABLE;
-		asic = ASIC_CALLIOPE;
-		set_register_map(CALLIOPE_IO_BASE, &calliope_register_map);
-
-		if (platform_family == FAMILY_1500VZE) {
-			gp_resources = non_dvr_vze_calliope_resources;
-			pr_info("Platform: 1500/Vz Class E - "
-				"CALLIOPE, NON_DVR_CAPABLE\n");
-		} else if (platform_family == FAMILY_1500VZF) {
-			gp_resources = non_dvr_vzf_calliope_resources;
-			pr_info("Platform: 1500/Vz Class F - "
-				"CALLIOPE, NON_DVR_CAPABLE\n");
-		} else {
-			gp_resources = non_dvr_calliope_resources;
-			pr_info("Platform: 1500/RNG100 - CALLIOPE, "
-				"NON_DVR_CAPABLE\n");
-		}
-		break;
-
-	case FAMILY_4500:
-		platform_features = FFS_CAPABLE | PCIE_CAPABLE |
-			DISPLAY_CAPABLE;
-		asic = ASIC_ZEUS;
-		set_register_map(ZEUS_IO_BASE, &zeus_register_map);
-		gp_resources = non_dvr_zeus_resources;
-
-		pr_info("Platform: 4500 - ZEUS, NON_DVR_CAPABLE\n");
-		break;
-
-	case FAMILY_4600:
-	{
-		unsigned int chipversion = 0;
-
-		/* The settop has PCIE but it isn't used, so don't advertise
-		 * it*/
-		platform_features = FFS_CAPABLE | DISPLAY_CAPABLE;
-
-		/* Cronus and Cronus Lite have the same register map */
-		set_register_map(CRONUS_IO_BASE, &cronus_register_map);
-
-		/* ASIC version will determine if this is a real CronusLite or
-		 * Castrati(Cronus) */
-		chipversion  = asic_read(chipver3) << 24;
-		chipversion |= asic_read(chipver2) << 16;
-		chipversion |= asic_read(chipver1) << 8;
-		chipversion |= asic_read(chipver0);
-
-		if ((chipversion == CRONUS_10) || (chipversion == CRONUS_11))
-			asic = ASIC_CRONUS;
-		else
-			asic = ASIC_CRONUSLITE;
-
-		gp_resources = non_dvr_cronuslite_resources;
-		pr_info("Platform: 4600 - %s, NON_DVR_CAPABLE, "
-			"chipversion=0x%08X\n",
-			(asic == ASIC_CRONUS) ? "CRONUS" : "CRONUS LITE",
-			chipversion);
-		break;
-	}
-	case FAMILY_4600VZA:
-		platform_features = FFS_CAPABLE | DISPLAY_CAPABLE;
-		asic = ASIC_CRONUS;
-		set_register_map(CRONUS_IO_BASE, &cronus_register_map);
-		gp_resources = non_dvr_cronus_resources;
-
-		pr_info("Platform: Vz Class A - CRONUS, NON_DVR_CAPABLE\n");
-		break;
-
-	case FAMILY_8500:
-	case FAMILY_8500RNG:
-		platform_features = DVR_CAPABLE | PCIE_CAPABLE |
-			DISPLAY_CAPABLE;
-		asic = ASIC_ZEUS;
-		set_register_map(ZEUS_IO_BASE, &zeus_register_map);
-		gp_resources = dvr_zeus_resources;
-
-		pr_info("Platform: 8500/RNG200 - ZEUS, DVR_CAPABLE\n");
-		break;
-
-	case FAMILY_8600:
-	case FAMILY_8600VZB:
-		platform_features = DVR_CAPABLE | PCIE_CAPABLE |
-			DISPLAY_CAPABLE;
-		asic = ASIC_CRONUS;
-		set_register_map(CRONUS_IO_BASE, &cronus_register_map);
-		gp_resources = dvr_cronus_resources;
-
-		pr_info("Platform: 8600/Vz Class B - CRONUS, "
-			"DVR_CAPABLE\n");
-		break;
-
-	case FAMILY_8700:
-		platform_features = FFS_CAPABLE | PCIE_CAPABLE;
-		asic = ASIC_GAIA;
-		set_register_map(GAIA_IO_BASE, &gaia_register_map);
-		gp_resources = dvr_gaia_resources;
-
-		pr_info("Platform: 8700 - GAIA, DVR_CAPABLE\n");
-		break;
-
-	default:
-		pr_crit("Platform:  UNKNOWN PLATFORM\n");
-		break;
-	}
-
-	switch (asic) {
-	case ASIC_ZEUS:
-		phys_to_dma_offset = 0x30000000;
-		break;
-	case ASIC_CALLIOPE:
-		phys_to_dma_offset = 0x10000000;
-		break;
-	case ASIC_CRONUSLITE:
-		/* Fall through */
-	case ASIC_CRONUS:
-		/*
-		 * TODO: We suppose 0x10000000 aliases into 0x20000000-
-		 * 0x2XXXXXXX. If 0x10000000 aliases into 0x60000000-
-		 * 0x6XXXXXXX, the offset should be 0x50000000, not 0x10000000.
-		 */
-		phys_to_dma_offset = 0x10000000;
-		break;
-	default:
-		phys_to_dma_offset = 0x00000000;
-		break;
-	}
-}
-
-/*
- * RESOURCE ALLOCATION
- *
- */
-/*
- * Allocates/reserves the Platform memory resources early in the boot process.
- * This ignores any resources that are designated IORESOURCE_IO
- */
-void __init platform_alloc_bootmem(void)
-{
-	int i;
-	int total = 0;
-
-	/* Get persistent memory data from command line before allocating
-	 * resources. This need to happen before normal command line parsing
-	 * has been done */
-	pmem_setup_resource();
-
-	/* Loop through looking for resources that want a particular address */
-	for (i = 0; gp_resources[i].flags != 0; i++) {
-		int size = resource_size(&gp_resources[i]);
-		if ((gp_resources[i].start != 0) &&
-			((gp_resources[i].flags & IORESOURCE_MEM) != 0)) {
-			reserve_bootmem(dma_to_phys(gp_resources[i].start),
-				size, 0);
-			total += resource_size(&gp_resources[i]);
-			pr_info("reserve resource %s at %08x (%u bytes)\n",
-				gp_resources[i].name, gp_resources[i].start,
-				resource_size(&gp_resources[i]));
-		}
-	}
-
-	/* Loop through assigning addresses for those that are left */
-	for (i = 0; gp_resources[i].flags != 0; i++) {
-		int size = resource_size(&gp_resources[i]);
-		if ((gp_resources[i].start == 0) &&
-			((gp_resources[i].flags & IORESOURCE_MEM) != 0)) {
-			void *mem = alloc_bootmem_pages(size);
-
-			if (mem == NULL)
-				pr_err("Unable to allocate bootmem pages "
-					"for %s\n", gp_resources[i].name);
-
-			else {
-				gp_resources[i].start =
-					phys_to_dma(virt_to_phys(mem));
-				gp_resources[i].end =
-					gp_resources[i].start + size - 1;
-				total += size;
-				pr_info("allocate resource %s at %08x "
-						"(%u bytes)\n",
-					gp_resources[i].name,
-					gp_resources[i].start, size);
-			}
-		}
-	}
-
-	pr_info("Total Platform driver memory allocation: 0x%08x\n", total);
-
-	/* indicate resources that are platform I/O related */
-	for (i = 0; gp_resources[i].flags != 0; i++) {
-		if ((gp_resources[i].start != 0) &&
-			((gp_resources[i].flags & IORESOURCE_IO) != 0)) {
-			pr_info("reserved platform resource %s at %08x\n",
-				gp_resources[i].name, gp_resources[i].start);
-		}
-	}
-}
-
-/*
- *
- * PERSISTENT MEMORY (PMEM) CONFIGURATION
- *
- */
-static unsigned long pmemaddr __initdata;
-
-static int __init early_param_pmemaddr(char *p)
-{
-	pmemaddr = (unsigned long)simple_strtoul(p, NULL, 0);
-	return 0;
-}
-early_param("pmemaddr", early_param_pmemaddr);
-
-static long pmemlen __initdata;
-
-static int __init early_param_pmemlen(char *p)
-{
-/* TODO: we can use this code when and if the bootloader ever changes this */
-#if 0
-	pmemlen = (unsigned long)simple_strtoul(p, NULL, 0);
-#else
-	pmemlen = 0x20000;
-#endif
-	return 0;
-}
-early_param("pmemlen", early_param_pmemlen);
-
-/*
- * Set up persistent memory. If we were given values, we patch the array of
- * resources. Otherwise, persistent memory may be allocated anywhere at all.
- */
-static void __init pmem_setup_resource(void)
-{
-	struct resource *resource;
-	resource = asic_resource_get("DiagPersistentMemory");
-
-	if (resource && pmemaddr && pmemlen) {
-		/* The address provided by bootloader is in kseg0. Convert to
-		 * a bus address. */
-		resource->start = phys_to_dma(pmemaddr - 0x80000000);
-		resource->end = resource->start + pmemlen - 1;
-
-		pr_info("persistent memory: start=0x%x	end=0x%x\n",
-			resource->start, resource->end);
-	}
-}
-
-/*
- *
- * RESOURCE ACCESS FUNCTIONS
- *
- */
-
-/**
- * asic_resource_get - retrieves parameters for a platform resource.
- * @name:	string to match resource
- *
- * Returns a pointer to a struct resource corresponding to the given name.
- *
- * CANNOT BE NAMED platform_resource_get, which would be the obvious choice,
- * as this function name is already declared
- */
-struct resource *asic_resource_get(const char *name)
-{
-	int i;
-
-	for (i = 0; gp_resources[i].flags != 0; i++) {
-		if (strcmp(gp_resources[i].name, name) == 0)
-			return &gp_resources[i];
-	}
-
-	return NULL;
-}
-EXPORT_SYMBOL(asic_resource_get);
-
-/**
- * platform_release_memory - release pre-allocated memory
- * @ptr:	pointer to memory to release
- * @size:	size of resource
- *
- * This must only be called for memory allocated or reserved via the boot
- * memory allocator.
- */
-void platform_release_memory(void *ptr, int size)
-{
-	free_reserved_area(ptr, ptr + size, -1, NULL);
-}
-EXPORT_SYMBOL(platform_release_memory);
-
-/*
- *
- * FEATURE AVAILABILITY FUNCTIONS
- *
- */
-int platform_supports_dvr(void)
-{
-	return (platform_features & DVR_CAPABLE) != 0;
-}
-
-int platform_supports_ffs(void)
-{
-	return (platform_features & FFS_CAPABLE) != 0;
-}
-
-int platform_supports_pcie(void)
-{
-	return (platform_features & PCIE_CAPABLE) != 0;
-}
-
-int platform_supports_display(void)
-{
-	return (platform_features & DISPLAY_CAPABLE) != 0;
-}
diff --git a/arch/mips/powertv/asic/asic_int.c b/arch/mips/powertv/asic/asic_int.c
deleted file mode 100644
index f44cd9295cae..000000000000
--- a/arch/mips/powertv/asic/asic_int.c
+++ /dev/null
@@ -1,125 +0,0 @@
-/*
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 2000, 2001, 2004 MIPS Technologies, Inc.
- * Copyright (C) 2001 Ralf Baechle
- * Portions copyright (C) 2009	Cisco Systems, Inc.
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Routines for generic manipulation of the interrupts found on the PowerTV
- * platform.
- *
- * The interrupt controller is located in the South Bridge a PIIX4 device
- * with two internal 82C95 interrupt controllers.
- */
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/sched.h>
-#include <linux/interrupt.h>
-#include <linux/kernel_stat.h>
-#include <linux/kernel.h>
-#include <linux/random.h>
-
-#include <asm/irq_cpu.h>
-#include <linux/io.h>
-#include <asm/irq_regs.h>
-#include <asm/setup.h>
-#include <asm/mips-boards/generic.h>
-
-#include <asm/mach-powertv/asic_regs.h>
-
-static DEFINE_RAW_SPINLOCK(asic_irq_lock);
-
-static inline int get_int(void)
-{
-	unsigned long flags;
-	int irq;
-
-	raw_spin_lock_irqsave(&asic_irq_lock, flags);
-
-	irq = (asic_read(int_int_scan) >> 4) - 1;
-
-	if (irq == 0 || irq >= NR_IRQS)
-		irq = -1;
-
-	raw_spin_unlock_irqrestore(&asic_irq_lock, flags);
-
-	return irq;
-}
-
-static void asic_irqdispatch(void)
-{
-	int irq;
-
-	irq = get_int();
-	if (irq < 0)
-		return;	 /* interrupt has already been cleared */
-
-	do_IRQ(irq);
-}
-
-static inline int clz(unsigned long x)
-{
-	__asm__(
-	"	.set	push					\n"
-	"	.set	mips32					\n"
-	"	clz	%0, %1					\n"
-	"	.set	pop					\n"
-	: "=r" (x)
-	: "r" (x));
-
-	return x;
-}
-
-/*
- * Version of ffs that only looks at bits 12..15.
- */
-static inline unsigned int irq_ffs(unsigned int pending)
-{
-	return fls(pending) - 1 + CAUSEB_IP;
-}
-
-/*
- * TODO: check how it works under EIC mode.
- */
-asmlinkage void plat_irq_dispatch(void)
-{
-	unsigned int pending = read_c0_cause() & read_c0_status() & ST0_IM;
-	int irq;
-
-	irq = irq_ffs(pending);
-
-	if (irq == CAUSEF_IP3)
-		asic_irqdispatch();
-	else if (irq >= 0)
-		do_IRQ(irq);
-	else
-		spurious_interrupt();
-}
-
-void __init arch_init_irq(void)
-{
-	int i;
-
-	asic_irq_init();
-
-	/*
-	 * Initialize interrupt exception vectors.
-	 */
-	if (cpu_has_veic || cpu_has_vint) {
-		int nvec = cpu_has_veic ? 64 : 8;
-		for (i = 0; i < nvec; i++)
-			set_vi_handler(i, asic_irqdispatch);
-	}
-}
diff --git a/arch/mips/powertv/asic/irq_asic.c b/arch/mips/powertv/asic/irq_asic.c
deleted file mode 100644
index 9344902dc586..000000000000
--- a/arch/mips/powertv/asic/irq_asic.c
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * Portions copyright (C) 2005-2009 Scientific Atlanta
- * Portions copyright (C) 2009 Cisco Systems, Inc.
- *
- * Modified from arch/mips/kernel/irq-rm7000.c:
- * Copyright (C) 2003 Ralf Baechle
- *
- * This program is free software; you can redistribute	it and/or modify it
- * under  the terms of	the GNU General	 Public License as published by the
- * Free Software Foundation;  either version 2 of the  License, or (at your
- * option) any later version.
- */
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/kernel.h>
-#include <linux/irq.h>
-
-#include <asm/irq_cpu.h>
-#include <asm/mipsregs.h>
-
-#include <asm/mach-powertv/asic_regs.h>
-
-static inline void unmask_asic_irq(struct irq_data *d)
-{
-	unsigned long enable_bit;
-	unsigned int irq = d->irq;
-
-	enable_bit = (1 << (irq & 0x1f));
-
-	switch (irq >> 5) {
-	case 0:
-		asic_write(asic_read(ien_int_0) | enable_bit, ien_int_0);
-		break;
-	case 1:
-		asic_write(asic_read(ien_int_1) | enable_bit, ien_int_1);
-		break;
-	case 2:
-		asic_write(asic_read(ien_int_2) | enable_bit, ien_int_2);
-		break;
-	case 3:
-		asic_write(asic_read(ien_int_3) | enable_bit, ien_int_3);
-		break;
-	default:
-		BUG();
-	}
-}
-
-static inline void mask_asic_irq(struct irq_data *d)
-{
-	unsigned long disable_mask;
-	unsigned int irq = d->irq;
-
-	disable_mask = ~(1 << (irq & 0x1f));
-
-	switch (irq >> 5) {
-	case 0:
-		asic_write(asic_read(ien_int_0) & disable_mask, ien_int_0);
-		break;
-	case 1:
-		asic_write(asic_read(ien_int_1) & disable_mask, ien_int_1);
-		break;
-	case 2:
-		asic_write(asic_read(ien_int_2) & disable_mask, ien_int_2);
-		break;
-	case 3:
-		asic_write(asic_read(ien_int_3) & disable_mask, ien_int_3);
-		break;
-	default:
-		BUG();
-	}
-}
-
-static struct irq_chip asic_irq_chip = {
-	.name = "ASIC Level",
-	.irq_mask = mask_asic_irq,
-	.irq_unmask = unmask_asic_irq,
-};
-
-void __init asic_irq_init(void)
-{
-	int i;
-
-	/* set priority to 0 */
-	write_c0_status(read_c0_status() & ~(0x0000fc00));
-
-	asic_write(0, ien_int_0);
-	asic_write(0, ien_int_1);
-	asic_write(0, ien_int_2);
-	asic_write(0, ien_int_3);
-
-	asic_write(0x0fffffff, int_level_3_3);
-	asic_write(0xffffffff, int_level_3_2);
-	asic_write(0xffffffff, int_level_3_1);
-	asic_write(0xffffffff, int_level_3_0);
-	asic_write(0xffffffff, int_level_2_3);
-	asic_write(0xffffffff, int_level_2_2);
-	asic_write(0xffffffff, int_level_2_1);
-	asic_write(0xffffffff, int_level_2_0);
-	asic_write(0xffffffff, int_level_1_3);
-	asic_write(0xffffffff, int_level_1_2);
-	asic_write(0xffffffff, int_level_1_1);
-	asic_write(0xffffffff, int_level_1_0);
-	asic_write(0xffffffff, int_level_0_3);
-	asic_write(0xffffffff, int_level_0_2);
-	asic_write(0xffffffff, int_level_0_1);
-	asic_write(0xffffffff, int_level_0_0);
-
-	asic_write(0xf, int_int_scan);
-
-	/*
-	 * Initialize interrupt handlers.
-	 */
-	for (i = 0; i < NR_IRQS; i++)
-		irq_set_chip_and_handler(i, &asic_irq_chip, handle_level_irq);
-}
diff --git a/arch/mips/powertv/asic/prealloc-calliope.c b/arch/mips/powertv/asic/prealloc-calliope.c
deleted file mode 100644
index 98dc51650577..000000000000
--- a/arch/mips/powertv/asic/prealloc-calliope.c
+++ /dev/null
@@ -1,385 +0,0 @@
-/*
- * Memory pre-allocations for Calliope boxes.
- *
- * Copyright (C) 2005-2009 Scientific-Atlanta, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Author:	 Ken Eppinett
- *		 David Schleef <ds@schleef.org>
- */
-
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <asm/mach-powertv/asic.h>
-#include "prealloc.h"
-
-/*
- * NON_DVR_CAPABLE CALLIOPE RESOURCES
- */
-struct resource non_dvr_calliope_resources[] __initdata =
-{
-	/*
-	 * VIDEO / LX1
-	 */
-	/* Delta-Mu 1 image (2MiB) */
-	PREALLOC_NORMAL("ST231aImage", 0x24000000, 0x24200000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 1 monitor (8KiB) */
-	PREALLOC_NORMAL("ST231aMonitor", 0x24200000, 0x24202000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 1 RAM (~36.9MiB (32MiB - (2MiB + 8KiB))) */
-	PREALLOC_NORMAL("MediaMemory1", 0x24202000, 0x26700000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * Sysaudio Driver
-	 */
-	/* DSP code and data images (1MiB) */
-	PREALLOC_NORMAL("DSP_Image_Buff", 0x00000000, 0x00100000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC CPU PCM buffer (40KiB) */
-	PREALLOC_NORMAL("ADSC_CPU_PCM_Buff", 0x00000000, 0x0000A000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC AUX buffer (128KiB) */
-	PREALLOC_NORMAL("ADSC_AUX_Buff", 0x00000000, 0x00020000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC Main buffer (128KiB) */
-	PREALLOC_NORMAL("ADSC_Main_Buff", 0x00000000, 0x00020000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * STAVEM driver/STAPI
-	 */
-	/* 6MiB */
-	PREALLOC_NORMAL("AVMEMPartition0", 0x00000000, 0x00600000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * DOCSIS Subsystem
-	 */
-	/* 7MiB */
-	PREALLOC_DOCSIS("Docsis", 0x27500000, 0x27c00000-1, IORESOURCE_MEM)
-
-	/*
-	 * GHW HAL Driver
-	 */
-	/* PowerTV Graphics Heap (14MiB) */
-	PREALLOC_NORMAL("GraphicsHeap", 0x26700000, 0x26700000+(14*1048576)-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * multi com buffer area
-	 */
-	/* 128KiB */
-	PREALLOC_NORMAL("MulticomSHM", 0x23700000, 0x23720000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * DMA Ring buffer (don't need recording buffers)
-	 */
-	/* 680KiB */
-	PREALLOC_NORMAL("BMM_Buffer", 0x00000000, 0x000AA000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Display bins buffer for unit0
-	 */
-	/* 4KiB */
-	PREALLOC_NORMAL("DisplayBins0", 0x00000000, 0x00001000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * AVFS: player HAL memory
-	 */
-	/* 945K * 3 for playback */
-	PREALLOC_NORMAL("AvfsDmaMem", 0x00000000, 0x002c4c00-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * PMEM
-	 */
-	/* Persistent memory for diagnostics (64KiB) */
-	PREALLOC_PMEM("DiagPersistentMemory", 0x00000000, 0x10000-1,
-	     (IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Smartcard
-	 */
-	/* Read and write buffers for Internal/External cards (10KiB) */
-	PREALLOC_NORMAL("SmartCardInfo", 0x00000000, 0x2800-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * NAND Flash
-	 */
-	/* 10KiB */
-	PREALLOC_NORMAL("NandFlash", NAND_FLASH_BASE, NAND_FLASH_BASE+0x400-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * Synopsys GMAC Memory Region
-	 */
-	/* 64KiB */
-	PREALLOC_NORMAL("GMAC", 0x00000000, 0x00010000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * TFTPBuffer
-	 *
-	 *  This buffer is used in some minimal configurations (e.g. two-way
-	 *  loader) for storing software images
-	 */
-	PREALLOC_TFTP("TFTPBuffer", 0x00000000, MEBIBYTE(80)-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Add other resources here
-	 */
-
-	/*
-	 * End of Resource marker
-	 */
-	{
-		.flags	= 0,
-	},
-};
-
-
-struct resource non_dvr_vze_calliope_resources[] __initdata =
-{
-	/*
-	 * VIDEO / LX1
-	 */
-	/* Delta-Mu 1 image (2MiB) */
-	PREALLOC_NORMAL("ST231aImage", 0x22000000, 0x22200000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 1 monitor (8KiB) */
-	PREALLOC_NORMAL("ST231aMonitor", 0x22200000, 0x22202000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 1 RAM (10.12MiB) */
-	PREALLOC_NORMAL("MediaMemory1", 0x22202000, 0x22C20B85-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * Sysaudio Driver
-	 */
-	/* DSP code and data images (1MiB) */
-	PREALLOC_NORMAL("DSP_Image_Buff", 0x00000000, 0x00100000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC CPU PCM buffer (40KiB) */
-	PREALLOC_NORMAL("ADSC_CPU_PCM_Buff", 0x00000000, 0x0000A000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC AUX buffer (16KiB) */
-	PREALLOC_NORMAL("ADSC_AUX_Buff", 0x00000000, 0x00004000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC Main buffer (16KiB) */
-	PREALLOC_NORMAL("ADSC_Main_Buff", 0x00000000, 0x00004000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * STAVEM driver/STAPI
-	 */
-	/* 3.125MiB */
-	PREALLOC_NORMAL("AVMEMPartition0", 0x20396000, 0x206B6000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * GHW HAL Driver
-	 */
-	/* PowerTV Graphics Heap (2.59MiB) */
-	PREALLOC_NORMAL("GraphicsHeap", 0x20100000, 0x20396000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * multi com buffer area
-	 */
-	/* 128KiB */
-	PREALLOC_NORMAL("MulticomSHM", 0x206B6000, 0x206D6000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * DMA Ring buffer (don't need recording buffers)
-	 */
-	/* 680KiB */
-	PREALLOC_NORMAL("BMM_Buffer", 0x00000000, 0x000AA000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Display bins buffer for unit0
-	 */
-	/* 4KiB */
-	PREALLOC_NORMAL("DisplayBins0", 0x00000000, 0x00001000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * PMEM
-	 */
-	/* Persistent memory for diagnostics (64KiB) */
-	PREALLOC_PMEM("DiagPersistentMemory", 0x00000000, 0x10000-1,
-	     (IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Smartcard
-	 */
-	/* Read and write buffers for Internal/External cards (10KiB) */
-	PREALLOC_NORMAL("SmartCardInfo", 0x00000000, 0x2800-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * NAND Flash
-	 */
-	/* 10KiB */
-	PREALLOC_NORMAL("NandFlash", NAND_FLASH_BASE, NAND_FLASH_BASE+0x400-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * Synopsys GMAC Memory Region
-	 */
-	/* 64KiB */
-	PREALLOC_NORMAL("GMAC", 0x00000000, 0x00010000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Add other resources here
-	 */
-
-	/*
-	 * End of Resource marker
-	 */
-	{
-		.flags	= 0,
-	},
-};
-
-struct resource non_dvr_vzf_calliope_resources[] __initdata =
-{
-	/*
-	 * VIDEO / LX1
-	 */
-	/* Delta-Mu 1 image (2MiB) */
-	PREALLOC_NORMAL("ST231aImage", 0x24000000, 0x24200000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 1 monitor (8KiB) */
-	PREALLOC_NORMAL("ST231aMonitor", 0x24200000, 0x24202000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 1 RAM (~19.4 (21.5MiB - (2MiB + 8KiB))) */
-	PREALLOC_NORMAL("MediaMemory1", 0x24202000, 0x25580000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * Sysaudio Driver
-	 */
-	/* DSP code and data images (1MiB) */
-	PREALLOC_NORMAL("DSP_Image_Buff", 0x00000000, 0x00100000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC CPU PCM buffer (40KiB) */
-	PREALLOC_NORMAL("ADSC_CPU_PCM_Buff", 0x00000000, 0x0000A000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC AUX buffer (128KiB) */
-	PREALLOC_NORMAL("ADSC_AUX_Buff", 0x00000000, 0x00020000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC Main buffer (128KiB) */
-	PREALLOC_NORMAL("ADSC_Main_Buff", 0x00000000, 0x00020000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * STAVEM driver/STAPI
-	 */
-	/* 4.5MiB */
-	PREALLOC_NORMAL("AVMEMPartition0", 0x00000000, 0x00480000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * GHW HAL Driver
-	 */
-	/* PowerTV Graphics Heap (14MiB) */
-	PREALLOC_NORMAL("GraphicsHeap", 0x25600000, 0x25600000+(14*1048576)-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * multi com buffer area
-	 */
-	/* 128KiB */
-	PREALLOC_NORMAL("MulticomSHM", 0x23700000, 0x23720000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * DMA Ring buffer (don't need recording buffers)
-	 */
-	/* 680KiB */
-	PREALLOC_NORMAL("BMM_Buffer", 0x00000000, 0x000AA000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Display bins buffer for unit0
-	 */
-	/* 4KiB */
-	PREALLOC_NORMAL("DisplayBins0", 0x00000000, 0x00001000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Display bins buffer for unit1
-	 */
-	/* 4KiB */
-	PREALLOC_NORMAL("DisplayBins1", 0x00000000, 0x00001000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * AVFS: player HAL memory
-	 */
-	/* 945K * 3 for playback */
-	PREALLOC_NORMAL("AvfsDmaMem", 0x00000000, 0x002c4c00-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * PMEM
-	 */
-	/* Persistent memory for diagnostics (64KiB) */
-	PREALLOC_PMEM("DiagPersistentMemory", 0x00000000, 0x10000-1,
-	     (IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Smartcard
-	 */
-	/* Read and write buffers for Internal/External cards (10KiB) */
-	PREALLOC_NORMAL("SmartCardInfo", 0x00000000, 0x2800-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * NAND Flash
-	 */
-	/* 10KiB */
-	PREALLOC_NORMAL("NandFlash", NAND_FLASH_BASE, NAND_FLASH_BASE+0x400-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * Synopsys GMAC Memory Region
-	 */
-	/* 64KiB */
-	PREALLOC_NORMAL("GMAC", 0x00000000, 0x00010000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Add other resources here
-	 */
-
-	/*
-	 * End of Resource marker
-	 */
-	{
-		.flags	= 0,
-	},
-};
diff --git a/arch/mips/powertv/asic/prealloc-cronus.c b/arch/mips/powertv/asic/prealloc-cronus.c
deleted file mode 100644
index 7c6ce7596935..000000000000
--- a/arch/mips/powertv/asic/prealloc-cronus.c
+++ /dev/null
@@ -1,340 +0,0 @@
-/*
- * Memory pre-allocations for Cronus boxes.
- *
- * Copyright (C) 2005-2009 Scientific-Atlanta, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Author:	 Ken Eppinett
- *		 David Schleef <ds@schleef.org>
- */
-
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <asm/mach-powertv/asic.h>
-#include "prealloc.h"
-
-/*
- * DVR_CAPABLE CRONUS RESOURCES
- */
-struct resource dvr_cronus_resources[] __initdata =
-{
-	/*
-	 * VIDEO1 / LX1
-	 */
-	/* Delta-Mu 1 image (2MiB) */
-	PREALLOC_NORMAL("ST231aImage", 0x24000000, 0x24200000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 1 monitor (8KiB) */
-	PREALLOC_NORMAL("ST231aMonitor", 0x24200000, 0x24202000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 1 RAM (~29.9MiB (32MiB - (2MiB + 8KiB))) */
-	PREALLOC_NORMAL("MediaMemory1", 0x24202000, 0x26000000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * VIDEO2 / LX2
-	 */
-	/* Delta-Mu 2 image (2MiB) */
-	PREALLOC_NORMAL("ST231bImage", 0x60000000, 0x60200000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 2 monitor (8KiB) */
-	PREALLOC_NORMAL("ST231bMonitor", 0x60200000, 0x60202000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 2 RAM (~29.9MiB (32MiB - (2MiB + 8KiB))) */
-	PREALLOC_NORMAL("MediaMemory2", 0x60202000, 0x62000000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * Sysaudio Driver
-	 */
-	/* DSP code and data images (1MiB) */
-	PREALLOC_NORMAL("DSP_Image_Buff", 0x00000000, 0x00100000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC CPU PCM buffer (40KiB) */
-	PREALLOC_NORMAL("ADSC_CPU_PCM_Buff", 0x00000000, 0x0000A000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC AUX buffer (128KiB) */
-	PREALLOC_NORMAL("ADSC_AUX_Buff", 0x00000000, 0x00020000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC Main buffer (128KiB) */
-	PREALLOC_NORMAL("ADSC_Main_Buff", 0x00000000, 0x00020000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * STAVEM driver/STAPI
-	 *
-	 *  This memory area is used for allocating buffers for Video decoding
-	 *  purposes.  Allocation/De-allocation within this buffer is managed
-	 *  by the STAVMEM driver of the STAPI.	 They could be Decimated
-	 *  Picture Buffers, Intermediate Buffers, as deemed necessary for
-	 *  video decoding purposes, for any video decoders on Zeus.
-	 */
-	/* 12MiB */
-	PREALLOC_NORMAL("AVMEMPartition0", 0x00000000, 0x00c00000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * DOCSIS Subsystem
-	 */
-	/* 7MiB */
-	PREALLOC_DOCSIS("Docsis", 0x67500000, 0x67c00000-1, IORESOURCE_MEM)
-
-	/*
-	 * GHW HAL Driver
-	 */
-	/* PowerTV Graphics Heap (14MiB) */
-	PREALLOC_NORMAL("GraphicsHeap", 0x62700000, 0x63500000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * multi com buffer area
-	 */
-	/* 128KiB */
-	PREALLOC_NORMAL("MulticomSHM", 0x26000000, 0x26020000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * DMA Ring buffer
-	 */
-	PREALLOC_NORMAL("BMM_Buffer", 0x00000000, 0x002EA000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Display bins buffer for unit0
-	 */
-	/* 4KiB */
-	PREALLOC_NORMAL("DisplayBins0", 0x00000000, 0x00001000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Display bins buffer for unit1
-	 */
-	/* 4KiB */
-	PREALLOC_NORMAL("DisplayBins1", 0x00000000, 0x00001000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * ITFS
-	 */
-	/* 815,104 bytes each for 2 ITFS partitions. */
-	PREALLOC_NORMAL("ITFS", 0x00000000, 0x0018E000-1, IORESOURCE_MEM)
-
-	/*
-	 * AVFS
-	 */
-	/* (945K * 8) = (128K * 3) 5 playbacks / 3 server */
-	PREALLOC_NORMAL("AvfsDmaMem", 0x00000000, 0x007c2000-1,
-		IORESOURCE_MEM)
-
-	/* 4KiB */
-	PREALLOC_NORMAL("AvfsFileSys", 0x00000000, 0x00001000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * PMEM
-	 */
-	/* Persistent memory for diagnostics (64KiB) */
-	PREALLOC_PMEM("DiagPersistentMemory", 0x00000000, 0x10000-1,
-	     (IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Smartcard
-	 */
-	/* Read and write buffers for Internal/External cards (10KiB) */
-	PREALLOC_NORMAL("SmartCardInfo", 0x00000000, 0x2800-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * KAVNET
-	 */
-	/* NP Reset Vector - must be of the form xxCxxxxx (4KiB) */
-	PREALLOC_NORMAL("NP_Reset_Vector", 0x27c00000, 0x27c01000-1,
-		IORESOURCE_MEM)
-	/* NP Image - must be video bank 1 (320KiB) */
-	PREALLOC_NORMAL("NP_Image", 0x27020000, 0x27070000-1, IORESOURCE_MEM)
-	/* NP IPC - must be video bank 2 (512KiB) */
-	PREALLOC_NORMAL("NP_IPC", 0x63500000, 0x63580000-1, IORESOURCE_MEM)
-
-	/*
-	 * TFTPBuffer
-	 *
-	 *  This buffer is used in some minimal configurations (e.g. two-way
-	 *  loader) for storing software images
-	 */
-	PREALLOC_TFTP("TFTPBuffer", 0x00000000, MEBIBYTE(80)-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Add other resources here
-	 */
-
-	/*
-	 * End of Resource marker
-	 */
-	{
-		.flags	= 0,
-	},
-};
-
-/*
- * NON_DVR_CAPABLE CRONUS RESOURCES
- */
-struct resource non_dvr_cronus_resources[] __initdata =
-{
-	/*
-	 * VIDEO1 / LX1
-	 */
-	/* Delta-Mu 1 image (2MiB) */
-	PREALLOC_NORMAL("ST231aImage", 0x24000000, 0x24200000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 1 monitor (8KiB) */
-	PREALLOC_NORMAL("ST231aMonitor", 0x24200000, 0x24202000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 1 RAM (~29.9MiB (32MiB - (2MiB + 8KiB))) */
-	PREALLOC_NORMAL("MediaMemory1", 0x24202000, 0x26000000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * VIDEO2 / LX2
-	 */
-	/* Delta-Mu 2 image (2MiB) */
-	PREALLOC_NORMAL("ST231bImage", 0x60000000, 0x60200000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 2 monitor (8KiB) */
-	PREALLOC_NORMAL("ST231bMonitor", 0x60200000, 0x60202000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 2 RAM (~29.9MiB (32MiB - (2MiB + 8KiB))) */
-	PREALLOC_NORMAL("MediaMemory2", 0x60202000, 0x62000000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * Sysaudio Driver
-	 */
-	/* DSP code and data images (1MiB) */
-	PREALLOC_NORMAL("DSP_Image_Buff", 0x00000000, 0x00100000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC CPU PCM buffer (40KiB) */
-	PREALLOC_NORMAL("ADSC_CPU_PCM_Buff", 0x00000000, 0x0000A000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC AUX buffer (128KiB) */
-	PREALLOC_NORMAL("ADSC_AUX_Buff", 0x00000000, 0x00020000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC Main buffer (128KiB) */
-	PREALLOC_NORMAL("ADSC_Main_Buff", 0x00000000, 0x00020000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * STAVEM driver/STAPI
-	 *
-	 *  This memory area is used for allocating buffers for Video decoding
-	 *  purposes.  Allocation/De-allocation within this buffer is managed
-	 *  by the STAVMEM driver of the STAPI.	 They could be Decimated
-	 *  Picture Buffers, Intermediate Buffers, as deemed necessary for
-	 *  video decoding purposes, for any video decoders on Zeus.
-	 */
-	/* 12MiB */
-	PREALLOC_NORMAL("AVMEMPartition0", 0x00000000, 0x00c00000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * DOCSIS Subsystem
-	 */
-	/* 7MiB */
-	PREALLOC_DOCSIS("Docsis", 0x67500000, 0x67c00000-1, IORESOURCE_MEM)
-
-	/*
-	 * GHW HAL Driver
-	 */
-	/* PowerTV Graphics Heap (14MiB) */
-	PREALLOC_NORMAL("GraphicsHeap", 0x62700000, 0x63500000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * multi com buffer area
-	 */
-	/* 128KiB */
-	PREALLOC_NORMAL("MulticomSHM", 0x26000000, 0x26020000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * DMA Ring buffer (don't need recording buffers)
-	 */
-	/* 680KiB */
-	PREALLOC_NORMAL("BMM_Buffer", 0x00000000, 0x000AA000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Display bins buffer for unit0
-	 */
-	/* 4KiB */
-	PREALLOC_NORMAL("DisplayBins0", 0x00000000, 0x00001000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Display bins buffer for unit1
-	 */
-	/* 4KiB */
-	PREALLOC_NORMAL("DisplayBins1", 0x00000000, 0x00001000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * AVFS: player HAL memory
-	 */
-	/* 945K * 3 for playback */
-	PREALLOC_NORMAL("AvfsDmaMem", 0x00000000, 0x002c4c00-1, IORESOURCE_MEM)
-
-	/*
-	 * PMEM
-	 */
-	/* Persistent memory for diagnostics (64KiB) */
-	PREALLOC_PMEM("DiagPersistentMemory", 0x00000000, 0x10000-1,
-	     (IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Smartcard
-	 */
-	/* Read and write buffers for Internal/External cards (10KiB) */
-	PREALLOC_NORMAL("SmartCardInfo", 0x00000000, 0x2800-1, IORESOURCE_MEM)
-
-	/*
-	 * KAVNET
-	 */
-	/* NP Reset Vector - must be of the form xxCxxxxx (4KiB) */
-	PREALLOC_NORMAL("NP_Reset_Vector", 0x27c00000, 0x27c01000-1,
-		IORESOURCE_MEM)
-	/* NP Image - must be video bank 1 (320KiB) */
-	PREALLOC_NORMAL("NP_Image", 0x27020000, 0x27070000-1, IORESOURCE_MEM)
-	/* NP IPC - must be video bank 2 (512KiB) */
-	PREALLOC_NORMAL("NP_IPC", 0x63500000, 0x63580000-1, IORESOURCE_MEM)
-
-	/*
-	 * NAND Flash
-	 */
-	/* 10KiB */
-	PREALLOC_NORMAL("NandFlash", NAND_FLASH_BASE, NAND_FLASH_BASE+0x400-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * Add other resources here
-	 */
-
-	/*
-	 * End of Resource marker
-	 */
-	{
-		.flags	= 0,
-	},
-};
diff --git a/arch/mips/powertv/asic/prealloc-cronuslite.c b/arch/mips/powertv/asic/prealloc-cronuslite.c
deleted file mode 100644
index a7937ba7b4c0..000000000000
--- a/arch/mips/powertv/asic/prealloc-cronuslite.c
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- * Memory pre-allocations for Cronus Lite boxes.
- *
- * Copyright (C) 2005-2009 Scientific-Atlanta, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Author:	 Ken Eppinett
- *		 David Schleef <ds@schleef.org>
- */
-
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <asm/mach-powertv/asic.h>
-#include "prealloc.h"
-
-/*
- * NON_DVR_CAPABLE CRONUSLITE RESOURCES
- */
-struct resource non_dvr_cronuslite_resources[] __initdata =
-{
-	/*
-	 * VIDEO2 / LX2
-	 */
-	/* Delta-Mu 1 image (2MiB) */
-	PREALLOC_NORMAL("ST231aImage", 0x60000000, 0x60200000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 1 monitor (8KiB) */
-	PREALLOC_NORMAL("ST231aMonitor", 0x60200000, 0x60202000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 1 RAM (~29.9MiB (32MiB - (2MiB + 8KiB))) */
-	PREALLOC_NORMAL("MediaMemory1", 0x60202000, 0x62000000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * Sysaudio Driver
-	 */
-	/* DSP code and data images (1MiB) */
-	PREALLOC_NORMAL("DSP_Image_Buff", 0x00000000, 0x00100000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC CPU PCM buffer (40KiB) */
-	PREALLOC_NORMAL("ADSC_CPU_PCM_Buff", 0x00000000, 0x0000A000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC AUX buffer (128KiB) */
-	PREALLOC_NORMAL("ADSC_AUX_Buff", 0x00000000, 0x00020000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC Main buffer (128KiB) */
-	PREALLOC_NORMAL("ADSC_Main_Buff", 0x00000000, 0x00020000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * STAVEM driver/STAPI
-	 *
-	 *  This memory area is used for allocating buffers for Video decoding
-	 *  purposes.  Allocation/De-allocation within this buffer is managed
-	 *  by the STAVMEM driver of the STAPI.	 They could be Decimated
-	 *  Picture Buffers, Intermediate Buffers, as deemed necessary for
-	 *  video decoding purposes, for any video decoders on Zeus.
-	 */
-	/* 6MiB */
-	PREALLOC_NORMAL("AVMEMPartition0", 0x00000000, 0x00600000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * DOCSIS Subsystem
-	 */
-	/* 7MiB */
-	PREALLOC_DOCSIS("Docsis", 0x67500000, 0x67c00000-1, IORESOURCE_MEM)
-
-	/*
-	 * GHW HAL Driver
-	 */
-	/* PowerTV Graphics Heap (14MiB) */
-	PREALLOC_NORMAL("GraphicsHeap", 0x62700000, 0x63500000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * multi com buffer area
-	 */
-	/* 128KiB */
-	PREALLOC_NORMAL("MulticomSHM", 0x26000000, 0x26020000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * DMA Ring buffer (don't need recording buffers)
-	 */
-	/* 680KiB */
-	PREALLOC_NORMAL("BMM_Buffer", 0x00000000, 0x000AA000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Display bins buffer for unit0
-	 */
-	/* 4KiB */
-	PREALLOC_NORMAL("DisplayBins0", 0x00000000, 0x00001000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Display bins buffer for unit1
-	 */
-	/* 4KiB */
-	PREALLOC_NORMAL("DisplayBins1", 0x00000000, 0x00001000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * AVFS: player HAL memory
-	 */
-	/* 945K * 3 for playback */
-	PREALLOC_NORMAL("AvfsDmaMem", 0x00000000, 0x002c4c00-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * PMEM
-	 */
-	/* Persistent memory for diagnostics (64KiB) */
-	PREALLOC_PMEM("DiagPersistentMemory", 0x00000000, 0x10000-1,
-	     (IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Smartcard
-	 */
-	/* Read and write buffers for Internal/External cards (10KiB) */
-	PREALLOC_NORMAL("SmartCardInfo", 0x00000000, 0x2800-1, IORESOURCE_MEM)
-
-	/*
-	 * KAVNET
-	 */
-	/* NP Reset Vector - must be of the form xxCxxxxx (4KiB) */
-	PREALLOC_NORMAL("NP_Reset_Vector", 0x27c00000, 0x27c01000-1,
-		IORESOURCE_MEM)
-	/* NP Image - must be video bank 1 (320KiB) */
-	PREALLOC_NORMAL("NP_Image", 0x27020000, 0x27070000-1, IORESOURCE_MEM)
-	/* NP IPC - must be video bank 2 (512KiB) */
-	PREALLOC_NORMAL("NP_IPC", 0x63500000, 0x63580000-1, IORESOURCE_MEM)
-
-	/*
-	 * NAND Flash
-	 */
-	/* 10KiB */
-	PREALLOC_NORMAL("NandFlash", NAND_FLASH_BASE, NAND_FLASH_BASE+0x400-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * TFTPBuffer
-	 *
-	 *  This buffer is used in some minimal configurations (e.g. two-way
-	 *  loader) for storing software images
-	 */
-	PREALLOC_TFTP("TFTPBuffer", 0x00000000, MEBIBYTE(80)-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Add other resources here
-	 */
-
-	/*
-	 * End of Resource marker
-	 */
-	{
-		.flags	= 0,
-	},
-};
diff --git a/arch/mips/powertv/asic/prealloc-gaia.c b/arch/mips/powertv/asic/prealloc-gaia.c
deleted file mode 100644
index 2303bbfe6b82..000000000000
--- a/arch/mips/powertv/asic/prealloc-gaia.c
+++ /dev/null
@@ -1,589 +0,0 @@
-/*
- * Memory pre-allocations for Gaia boxes.
- *
- * Copyright (C) 2005-2009 Scientific-Atlanta, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Author:	 David VomLehn
- */
-
-#include <linux/init.h>
-#include <asm/mach-powertv/asic.h>
-
-/*
- * DVR_CAPABLE GAIA RESOURCES
- */
-struct resource dvr_gaia_resources[] __initdata = {
-	/*
-	 *
-	 * VIDEO1 / LX1
-	 *
-	 */
-	{
-		.name	= "ST231aImage",	/* Delta-Mu 1 image and ram */
-		.start	= 0x24000000,
-		.end	= 0x241FFFFF,		/* 2MiB */
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "ST231aMonitor",	/* 8KiB block ST231a monitor */
-		.start	= 0x24200000,
-		.end	= 0x24201FFF,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "MediaMemory1",
-		.start	= 0x24202000,
-		.end	= 0x25FFFFFF, /*~29.9MiB (32MiB - (2MiB + 8KiB)) */
-		.flags	= IORESOURCE_MEM,
-	},
-	/*
-	 *
-	 * VIDEO2 / LX2
-	 *
-	 */
-	{
-		.name	= "ST231bImage",	/* Delta-Mu 2 image and ram */
-		.start	= 0x60000000,
-		.end	= 0x601FFFFF,		/* 2MiB */
-		.flags	= IORESOURCE_IO,
-	},
-	{
-		.name	= "ST231bMonitor",	/* 8KiB block ST231b monitor */
-		.start	= 0x60200000,
-		.end	= 0x60201FFF,
-		.flags	= IORESOURCE_IO,
-	},
-	{
-		.name	= "MediaMemory2",
-		.start	= 0x60202000,
-		.end	= 0x61FFFFFF, /*~29.9MiB (32MiB - (2MiB + 8KiB)) */
-		.flags	= IORESOURCE_IO,
-	},
-	/*
-	 *
-	 * Sysaudio Driver
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  DSP_Image_Buff - DSP code and data images (1MB)
-	 *  ADSC_CPU_PCM_Buff - ADSC CPU PCM buffer (40KB)
-	 *  ADSC_AUX_Buff - ADSC AUX buffer (16KB)
-	 *  ADSC_Main_Buff - ADSC Main buffer (16KB)
-	 *
-	 */
-	{
-		.name	= "DSP_Image_Buff",
-		.start	= 0x00000000,
-		.end	= 0x000FFFFF,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "ADSC_CPU_PCM_Buff",
-		.start	= 0x00000000,
-		.end	= 0x00009FFF,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "ADSC_AUX_Buff",
-		.start	= 0x00000000,
-		.end	= 0x00003FFF,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "ADSC_Main_Buff",
-		.start	= 0x00000000,
-		.end	= 0x00003FFF,
-		.flags	= IORESOURCE_MEM,
-	},
-	/*
-	 *
-	 * STAVEM driver/STAPI
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  This memory area is used for allocating buffers for Video decoding
-	 *  purposes.  Allocation/De-allocation within this buffer is managed
-	 *  by the STAVMEM driver of the STAPI.	 They could be Decimated
-	 *  Picture Buffers, Intermediate Buffers, as deemed necessary for
-	 *  video decoding purposes, for any video decoders on Zeus.
-	 *
-	 */
-	{
-		.name	= "AVMEMPartition0",
-		.start	= 0x63580000,
-		.end	= 0x64180000 - 1,  /* 12 MB total */
-		.flags	= IORESOURCE_IO,
-	},
-	/*
-	 *
-	 * DOCSIS Subsystem
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  Docsis -
-	 *
-	 */
-	{
-		.name	= "Docsis",
-		.start	= 0x62000000,
-		.end	= 0x62700000 - 1,	/* 7 MB total */
-		.flags	= IORESOURCE_IO,
-	},
-	/*
-	 *
-	 * GHW HAL Driver
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  GraphicsHeap - PowerTV Graphics Heap
-	 *
-	 */
-	{
-		.name	= "GraphicsHeap",
-		.start	= 0x62700000,
-		.end	= 0x63500000 - 1,	/* 14 MB total */
-		.flags	= IORESOURCE_IO,
-	},
-	/*
-	 *
-	 * multi com buffer area
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  Docsis -
-	 *
-	 */
-	{
-		.name	= "MulticomSHM",
-		.start	= 0x26000000,
-		.end	= 0x26020000 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-	/*
-	 *
-	 * DMA Ring buffer
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  Docsis -
-	 *
-	 */
-	{
-		.name	= "BMM_Buffer",
-		.start	= 0x00000000,
-		.end	= 0x00280000 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-	/*
-	 *
-	 * Display bins buffer for unit0
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  Display Bins for unit0
-	 *
-	 */
-	{
-		.name	= "DisplayBins0",
-		.start	= 0x00000000,
-		.end	= 0x00000FFF,		/* 4 KB total */
-		.flags	= IORESOURCE_MEM,
-	},
-	/*
-	 *
-	 * Display bins buffer
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  Display Bins for unit1
-	 *
-	 */
-	{
-		.name	= "DisplayBins1",
-		.start	= 0x64AD4000,
-		.end	= 0x64AD5000 - 1,  /* 4 KB total */
-		.flags	= IORESOURCE_IO,
-	},
-	/*
-	 *
-	 * ITFS
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  Docsis -
-	 *
-	 */
-	{
-		.name	= "ITFS",
-		.start	= 0x64180000,
-		/* 815,104 bytes each for 2 ITFS partitions. */
-		.end	= 0x6430DFFF,
-		.flags	= IORESOURCE_IO,
-	},
-	/*
-	 *
-	 * AVFS
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  Docsis -
-	 *
-	 */
-	{
-		.name	= "AvfsDmaMem",
-		.start	= 0x6430E000,
-		/* (945K * 8) = (128K *3) 5 playbacks / 3 server */
-		.end	= 0x64AD0000 - 1,
-		.flags	= IORESOURCE_IO,
-	},
-	{
-		.name	= "AvfsFileSys",
-		.start	= 0x64AD0000,
-		.end	= 0x64AD1000 - 1,  /* 4K */
-		.flags	= IORESOURCE_IO,
-	},
-	/*
-	 *
-	 * Smartcard
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  Read and write buffers for Internal/External cards
-	 *
-	 */
-	{
-		.name	= "SmartCardInfo",
-		.start	= 0x64AD1000,
-		.end	= 0x64AD3800 - 1,
-		.flags	= IORESOURCE_IO,
-	},
-	/*
-	 *
-	 * KAVNET
-	 *    NP Reset Vector - must be of the form xxCxxxxx
-	 *	   NP Image - must be video bank 1
-	 *	   NP IPC - must be video bank 2
-	 */
-	{
-		.name	= "NP_Reset_Vector",
-		.start	= 0x27c00000,
-		.end	= 0x27c01000 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "NP_Image",
-		.start	= 0x27020000,
-		.end	= 0x27060000 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "NP_IPC",
-		.start	= 0x63500000,
-		.end	= 0x63580000 - 1,
-		.flags	= IORESOURCE_IO,
-	},
-	/*
-	 * Add other resources here
-	 */
-	{ },
-};
-
-/*
- * NON_DVR_CAPABLE GAIA RESOURCES
- */
-struct resource non_dvr_gaia_resources[] __initdata = {
-	/*
-	 *
-	 * VIDEO1 / LX1
-	 *
-	 */
-	{
-		.name	= "ST231aImage",	/* Delta-Mu 1 image and ram */
-		.start	= 0x24000000,
-		.end	= 0x241FFFFF,		/* 2MiB */
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "ST231aMonitor",	/* 8KiB block ST231a monitor */
-		.start	= 0x24200000,
-		.end	= 0x24201FFF,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "MediaMemory1",
-		.start	= 0x24202000,
-		.end	= 0x25FFFFFF, /*~29.9MiB (32MiB - (2MiB + 8KiB)) */
-		.flags	= IORESOURCE_MEM,
-	},
-	/*
-	 *
-	 * VIDEO2 / LX2
-	 *
-	 */
-	{
-		.name	= "ST231bImage",	/* Delta-Mu 2 image and ram */
-		.start	= 0x60000000,
-		.end	= 0x601FFFFF,		/* 2MiB */
-		.flags	= IORESOURCE_IO,
-	},
-	{
-		.name	= "ST231bMonitor",	/* 8KiB block ST231b monitor */
-		.start	= 0x60200000,
-		.end	= 0x60201FFF,
-		.flags	= IORESOURCE_IO,
-	},
-	{
-		.name	= "MediaMemory2",
-		.start	= 0x60202000,
-		.end	= 0x61FFFFFF, /*~29.9MiB (32MiB - (2MiB + 8KiB)) */
-		.flags	= IORESOURCE_IO,
-	},
-	/*
-	 *
-	 * Sysaudio Driver
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  DSP_Image_Buff - DSP code and data images (1MB)
-	 *  ADSC_CPU_PCM_Buff - ADSC CPU PCM buffer (40KB)
-	 *  ADSC_AUX_Buff - ADSC AUX buffer (16KB)
-	 *  ADSC_Main_Buff - ADSC Main buffer (16KB)
-	 *
-	 */
-	{
-		.name	= "DSP_Image_Buff",
-		.start	= 0x00000000,
-		.end	= 0x000FFFFF,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "ADSC_CPU_PCM_Buff",
-		.start	= 0x00000000,
-		.end	= 0x00009FFF,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "ADSC_AUX_Buff",
-		.start	= 0x00000000,
-		.end	= 0x00003FFF,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "ADSC_Main_Buff",
-		.start	= 0x00000000,
-		.end	= 0x00003FFF,
-		.flags	= IORESOURCE_MEM,
-	},
-	/*
-	 *
-	 * STAVEM driver/STAPI
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  This memory area is used for allocating buffers for Video decoding
-	 *  purposes.  Allocation/De-allocation within this buffer is managed
-	 *  by the STAVMEM driver of the STAPI.	 They could be Decimated
-	 *  Picture Buffers, Intermediate Buffers, as deemed necessary for
-	 *  video decoding purposes, for any video decoders on Zeus.
-	 *
-	 */
-	{
-		.name	= "AVMEMPartition0",
-		.start	= 0x63580000,
-		.end	= 0x64180000 - 1,  /* 12 MB total */
-		.flags	= IORESOURCE_IO,
-	},
-	/*
-	 *
-	 * DOCSIS Subsystem
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  Docsis -
-	 *
-	 */
-	{
-		.name	= "Docsis",
-		.start	= 0x62000000,
-		.end	= 0x62700000 - 1,	/* 7 MB total */
-		.flags	= IORESOURCE_IO,
-	},
-	/*
-	 *
-	 * GHW HAL Driver
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  GraphicsHeap - PowerTV Graphics Heap
-	 *
-	 */
-	{
-		.name	= "GraphicsHeap",
-		.start	= 0x62700000,
-		.end	= 0x63500000 - 1,	/* 14 MB total */
-		.flags	= IORESOURCE_IO,
-	},
-	/*
-	 *
-	 * multi com buffer area
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  Docsis -
-	 *
-	 */
-	{
-		.name	= "MulticomSHM",
-		.start	= 0x26000000,
-		.end	= 0x26020000 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-	/*
-	 *
-	 * DMA Ring buffer
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  Docsis -
-	 *
-	 */
-	{
-		.name	= "BMM_Buffer",
-		.start	= 0x00000000,
-		.end	= 0x000AA000 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-	/*
-	 *
-	 * Display bins buffer for unit0
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  Display Bins for unit0
-	 *
-	 */
-	{
-		.name	= "DisplayBins0",
-		.start	= 0x00000000,
-		.end	= 0x00000FFF,		/* 4 KB total */
-		.flags	= IORESOURCE_MEM,
-	},
-	/*
-	 *
-	 * Display bins buffer
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  Display Bins for unit1
-	 *
-	 */
-	{
-		.name	= "DisplayBins1",
-		.start	= 0x64AD4000,
-		.end	= 0x64AD5000 - 1,  /* 4 KB total */
-		.flags	= IORESOURCE_IO,
-	},
-	/*
-	 *
-	 * AVFS: player HAL memory
-	 *
-	 *
-	 */
-	{
-		.name	= "AvfsDmaMem",
-		.start	= 0x6430E000,
-		.end	= 0x645D2C00 - 1,  /* 945K * 3 for playback */
-		.flags	= IORESOURCE_IO,
-	},
-	/*
-	 *
-	 * PMEM
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  Persistent memory for diagnostics.
-	 *
-	 */
-	{
-		.name	= "DiagPersistentMemory",
-		.start	= 0x00000000,
-		.end	= 0x10000 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-	/*
-	 *
-	 * Smartcard
-	 *
-	 * This driver requires:
-	 *
-	 * Arbitrary Based Buffers:
-	 *  Read and write buffers for Internal/External cards
-	 *
-	 */
-	{
-		.name	= "SmartCardInfo",
-		.start	= 0x64AD1000,
-		.end	= 0x64AD3800 - 1,
-		.flags	= IORESOURCE_IO,
-	},
-	/*
-	 *
-	 * KAVNET
-	 *    NP Reset Vector - must be of the form xxCxxxxx
-	 *	   NP Image - must be video bank 1
-	 *	   NP IPC - must be video bank 2
-	 */
-	{
-		.name	= "NP_Reset_Vector",
-		.start	= 0x27c00000,
-		.end	= 0x27c01000 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "NP_Image",
-		.start	= 0x27020000,
-		.end	= 0x27060000 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "NP_IPC",
-		.start	= 0x63500000,
-		.end	= 0x63580000 - 1,
-		.flags	= IORESOURCE_IO,
-	},
-	{ },
-};
diff --git a/arch/mips/powertv/asic/prealloc-zeus.c b/arch/mips/powertv/asic/prealloc-zeus.c
deleted file mode 100644
index 6e76f09c68d6..000000000000
--- a/arch/mips/powertv/asic/prealloc-zeus.c
+++ /dev/null
@@ -1,304 +0,0 @@
-/*
- * Memory pre-allocations for Zeus boxes.
- *
- * Copyright (C) 2005-2009 Scientific-Atlanta, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Author:	 Ken Eppinett
- *		 David Schleef <ds@schleef.org>
- */
-
-#include <linux/init.h>
-#include <linux/ioport.h>
-#include <asm/mach-powertv/asic.h>
-#include "prealloc.h"
-
-/*
- * DVR_CAPABLE RESOURCES
- */
-struct resource dvr_zeus_resources[] __initdata =
-{
-	/*
-	 * VIDEO1 / LX1
-	 */
-	/* Delta-Mu 1 image (2MiB) */
-	PREALLOC_NORMAL("ST231aImage", 0x20000000, 0x20200000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 1 monitor (8KiB) */
-	PREALLOC_NORMAL("ST231aMonitor", 0x20200000, 0x20202000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 1 RAM (~29.9MiB (32MiB - (2MiB + 8KiB))) */
-	PREALLOC_NORMAL("MediaMemory1", 0x20202000, 0x22000000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * VIDEO2 / LX2
-	 */
-	/* Delta-Mu 2 image (2MiB) */
-	PREALLOC_NORMAL("ST231bImage", 0x30000000, 0x30200000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 2 monitor (8KiB) */
-	PREALLOC_NORMAL("ST231bMonitor", 0x30200000, 0x30202000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 2 RAM (~29.9MiB (32MiB - (2MiB + 8KiB))) */
-	PREALLOC_NORMAL("MediaMemory2", 0x30202000, 0x32000000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * Sysaudio Driver
-	 */
-	/* DSP code and data images (1MiB) */
-	PREALLOC_NORMAL("DSP_Image_Buff", 0x00000000, 0x00100000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC CPU PCM buffer (40KiB) */
-	PREALLOC_NORMAL("ADSC_CPU_PCM_Buff", 0x00000000, 0x0000A000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC AUX buffer (16KiB) */
-	PREALLOC_NORMAL("ADSC_AUX_Buff", 0x00000000, 0x00004000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC Main buffer (16KiB) */
-	PREALLOC_NORMAL("ADSC_Main_Buff", 0x00000000, 0x00004000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * STAVEM driver/STAPI
-	 *
-	 *  This memory area is used for allocating buffers for Video decoding
-	 *  purposes.  Allocation/De-allocation within this buffer is managed
-	 *  by the STAVMEM driver of the STAPI.	 They could be Decimated
-	 *  Picture Buffers, Intermediate Buffers, as deemed necessary for
-	 *  video decoding purposes, for any video decoders on Zeus.
-	 */
-	/* 12MiB */
-	PREALLOC_NORMAL("AVMEMPartition0", 0x00000000, 0x00c00000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * DOCSIS Subsystem
-	 */
-	/* 7MiB */
-	PREALLOC_DOCSIS("Docsis", 0x40100000, 0x40800000-1, IORESOURCE_MEM)
-
-	/*
-	 * GHW HAL Driver
-	 */
-	/* PowerTV Graphics Heap (14MiB) */
-	PREALLOC_NORMAL("GraphicsHeap", 0x46900000, 0x47700000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * multi com buffer area
-	 */
-	/* 128KiB */
-	PREALLOC_NORMAL("MulticomSHM", 0x47900000, 0x47920000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * DMA Ring buffer
-	 */
-	/* 2.5MiB */
-	PREALLOC_NORMAL("BMM_Buffer", 0x00000000, 0x00280000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Display bins buffer for unit0
-	 */
-	/* 4KiB */
-	PREALLOC_NORMAL("DisplayBins0", 0x00000000, 0x00001000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Display bins buffer for unit1
-	 */
-	/* 4KiB */
-	PREALLOC_NORMAL("DisplayBins1", 0x00000000, 0x00001000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * ITFS
-	 */
-	/* 815,104 bytes each for 2 ITFS partitions. */
-	PREALLOC_NORMAL("ITFS", 0x00000000, 0x0018E000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * AVFS
-	 */
-	/* (945K * 8) = (128K * 3) 5 playbacks / 3 server */
-	PREALLOC_NORMAL("AvfsDmaMem", 0x00000000, 0x007c2000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* 4KiB */
-	PREALLOC_NORMAL("AvfsFileSys", 0x00000000, 0x00001000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * PMEM
-	 */
-	/* Persistent memory for diagnostics (64KiB) */
-	PREALLOC_PMEM("DiagPersistentMemory", 0x00000000, 0x10000-1,
-	     (IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Smartcard
-	 */
-	/* Read and write buffers for Internal/External cards (10KiB) */
-	PREALLOC_NORMAL("SmartCardInfo", 0x00000000, 0x2800-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * TFTPBuffer
-	 *
-	 *  This buffer is used in some minimal configurations (e.g. two-way
-	 *  loader) for storing software images
-	 */
-	PREALLOC_TFTP("TFTPBuffer", 0x00000000, MEBIBYTE(80)-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Add other resources here
-	 */
-
-	/*
-	 * End of Resource marker
-	 */
-	{
-		.flags	= 0,
-	},
-};
-
-/*
- * NON_DVR_CAPABLE ZEUS RESOURCES
- */
-struct resource non_dvr_zeus_resources[] __initdata =
-{
-	/*
-	 * VIDEO1 / LX1
-	 */
-	/* Delta-Mu 1 image (2MiB) */
-	PREALLOC_NORMAL("ST231aImage", 0x20000000, 0x20200000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 1 monitor (8KiB) */
-	PREALLOC_NORMAL("ST231aMonitor", 0x20200000, 0x20202000-1,
-		IORESOURCE_MEM)
-	/* Delta-Mu 1 RAM (~29.9MiB (32MiB - (2MiB + 8KiB))) */
-	PREALLOC_NORMAL("MediaMemory1", 0x20202000, 0x22000000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * Sysaudio Driver
-	 */
-	/* DSP code and data images (1MiB) */
-	PREALLOC_NORMAL("DSP_Image_Buff", 0x00000000, 0x00100000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC CPU PCM buffer (40KiB) */
-	PREALLOC_NORMAL("ADSC_CPU_PCM_Buff", 0x00000000, 0x0000A000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC AUX buffer (16KiB) */
-	PREALLOC_NORMAL("ADSC_AUX_Buff", 0x00000000, 0x00004000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-	/* ADSC Main buffer (16KiB) */
-	PREALLOC_NORMAL("ADSC_Main_Buff", 0x00000000, 0x00004000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * STAVEM driver/STAPI
-	 */
-	/* 6MiB */
-	PREALLOC_NORMAL("AVMEMPartition0", 0x00000000, 0x00600000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * DOCSIS Subsystem
-	 */
-	/* 7MiB */
-	PREALLOC_DOCSIS("Docsis", 0x40100000, 0x40800000-1, IORESOURCE_MEM)
-
-	/*
-	 * GHW HAL Driver
-	 */
-	/* PowerTV Graphics Heap (14MiB) */
-	PREALLOC_NORMAL("GraphicsHeap", 0x46900000, 0x47700000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * multi com buffer area
-	 */
-	/* 128KiB */
-	PREALLOC_NORMAL("MulticomSHM", 0x47900000, 0x47920000-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * DMA Ring buffer
-	 */
-	/* 2.5MiB */
-	PREALLOC_NORMAL("BMM_Buffer", 0x00000000, 0x00280000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Display bins buffer for unit0
-	 */
-	/* 4KiB */
-	PREALLOC_NORMAL("DisplayBins0", 0x00000000, 0x00001000-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * AVFS: player HAL memory
-	 */
-	/* 945K * 3 for playback */
-	PREALLOC_NORMAL("AvfsDmaMem", 0x00000000, 0x002c4c00-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * PMEM
-	 */
-	/* Persistent memory for diagnostics (64KiB) */
-	PREALLOC_PMEM("DiagPersistentMemory", 0x00000000, 0x10000-1,
-	     (IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Smartcard
-	 */
-	/* Read and write buffers for Internal/External cards (10KiB) */
-	PREALLOC_NORMAL("SmartCardInfo", 0x00000000, 0x2800-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * NAND Flash
-	 */
-	/* 10KiB */
-	PREALLOC_NORMAL("NandFlash", NAND_FLASH_BASE, NAND_FLASH_BASE+0x400-1,
-		IORESOURCE_MEM)
-
-	/*
-	 * TFTPBuffer
-	 *
-	 *  This buffer is used in some minimal configurations (e.g. two-way
-	 *  loader) for storing software images
-	 */
-	PREALLOC_TFTP("TFTPBuffer", 0x00000000, MEBIBYTE(80)-1,
-		(IORESOURCE_MEM|IORESOURCE_PTV_RES_LOEXT))
-
-	/*
-	 * Add other resources here
-	 */
-
-	/*
-	 * End of Resource marker
-	 */
-	{
-		.flags	= 0,
-	},
-};
diff --git a/arch/mips/powertv/asic/prealloc.h b/arch/mips/powertv/asic/prealloc.h
deleted file mode 100644
index 8e682df17856..000000000000
--- a/arch/mips/powertv/asic/prealloc.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Definitions for memory preallocations
- *
- * Copyright (C) 2005-2009 Scientific-Atlanta, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#ifndef _ARCH_MIPS_POWERTV_ASIC_PREALLOC_H
-#define _ARCH_MIPS_POWERTV_ASIC_PREALLOC_H
-
-#define KIBIBYTE(n) ((n) * 1024)    /* Number of kibibytes */
-#define MEBIBYTE(n) ((n) * KIBIBYTE(1024)) /* Number of mebibytes */
-
-/* "struct resource" array element definition */
-#define PREALLOC(NAME, START, END, FLAGS) {	\
-		.name = (NAME),			\
-		.start = (START),		\
-		.end = (END),			\
-		.flags = (FLAGS)		\
-	},
-
-/* Individual resources in the preallocated resource arrays are defined using
- *  macros.  These macros are conditionally defined based on their
- *  corresponding kernel configuration flag:
- *    - CONFIG_PREALLOC_NORMAL: preallocate resources for a normal settop box
- *    - CONFIG_PREALLOC_TFTP: preallocate the TFTP download resource
- *    - CONFIG_PREALLOC_DOCSIS: preallocate the DOCSIS resource
- *    - CONFIG_PREALLOC_PMEM: reserve space for persistent memory
- */
-#ifdef CONFIG_PREALLOC_NORMAL
-#define PREALLOC_NORMAL(name, start, end, flags) \
-   PREALLOC(name, start, end, flags)
-#else
-#define PREALLOC_NORMAL(name, start, end, flags)
-#endif
-
-#ifdef CONFIG_PREALLOC_TFTP
-#define PREALLOC_TFTP(name, start, end, flags) \
-   PREALLOC(name, start, end, flags)
-#else
-#define PREALLOC_TFTP(name, start, end, flags)
-#endif
-
-#ifdef CONFIG_PREALLOC_DOCSIS
-#define PREALLOC_DOCSIS(name, start, end, flags) \
-   PREALLOC(name, start, end, flags)
-#else
-#define PREALLOC_DOCSIS(name, start, end, flags)
-#endif
-
-#ifdef CONFIG_PREALLOC_PMEM
-#define PREALLOC_PMEM(name, start, end, flags) \
-   PREALLOC(name, start, end, flags)
-#else
-#define PREALLOC_PMEM(name, start, end, flags)
-#endif
-#endif
diff --git a/arch/mips/powertv/init.c b/arch/mips/powertv/init.c
deleted file mode 100644
index 498926377e51..000000000000
--- a/arch/mips/powertv/init.c
+++ /dev/null
@@ -1,90 +0,0 @@
-/*
- * Copyright (C) 1999, 2000, 2004, 2005	 MIPS Technologies, Inc.
- *	All rights reserved.
- *	Authors: Carsten Langgaard <carstenl@mips.com>
- *		 Maciej W. Rozycki <macro@mips.com>
- * Portions copyright (C) 2009 Cisco Systems, Inc.
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * PROM library initialisation code.
- */
-#include <linux/init.h>
-#include <linux/string.h>
-#include <linux/kernel.h>
-
-#include <asm/bootinfo.h>
-#include <linux/io.h>
-#include <asm/cacheflush.h>
-#include <asm/traps.h>
-
-#include <asm/mips-boards/generic.h>
-#include <asm/mach-powertv/asic.h>
-
-#include "init.h"
-
-static int *_prom_envp;
-unsigned long _prom_memsize;
-
-/*
- * YAMON (32-bit PROM) pass arguments and environment as 32-bit pointer.
- * This macro take care of sign extension, if running in 64-bit mode.
- */
-#define prom_envp(index) ((char *)(long)_prom_envp[(index)])
-
-char *prom_getenv(char *envname)
-{
-	char *result = NULL;
-
-	if (_prom_envp != NULL) {
-		/*
-		 * Return a pointer to the given environment variable.
-		 * In 64-bit mode: we're using 64-bit pointers, but all pointers
-		 * in the PROM structures are only 32-bit, so we need some
-		 * workarounds, if we are running in 64-bit mode.
-		 */
-		int i, index = 0;
-
-		i = strlen(envname);
-
-		while (prom_envp(index)) {
-			if (strncmp(envname, prom_envp(index), i) == 0) {
-				result = prom_envp(index + 1);
-				break;
-			}
-			index += 2;
-		}
-	}
-
-	return result;
-}
-
-void __init prom_init(void)
-{
-	int prom_argc;
-	char *prom_argv;
-
-	prom_argc = fw_arg0;
-	prom_argv = (char *) fw_arg1;
-	_prom_envp = (int *) fw_arg2;
-	_prom_memsize = (unsigned long) fw_arg3;
-
-	if (prom_argc == 1) {
-		strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE);
-		strlcat(arcs_cmdline, prom_argv, COMMAND_LINE_SIZE);
-	}
-
-	configure_platform();
-	prom_meminit();
-}
diff --git a/arch/mips/powertv/init.h b/arch/mips/powertv/init.h
deleted file mode 100644
index c1a8bd0dbe4b..000000000000
--- a/arch/mips/powertv/init.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * Definitions from powertv init.c file
- *
- * Copyright (C) 2009  Cisco Systems, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
- * Author: David VomLehn
- */
-
-#ifndef _POWERTV_INIT_H
-#define _POWERTV_INIT_H
-extern unsigned long _prom_memsize;
-extern void prom_meminit(void);
-extern char *prom_getenv(char *name);
-#endif
diff --git a/arch/mips/powertv/ioremap.c b/arch/mips/powertv/ioremap.c
deleted file mode 100644
index d060478aab03..000000000000
--- a/arch/mips/powertv/ioremap.c
+++ /dev/null
@@ -1,136 +0,0 @@
-/*
- *			ioremap.c
- *
- * Support for mapping between dma_addr_t values a phys_addr_t values.
- *
- * Copyright (C) 2005-2009 Scientific-Atlanta, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Author:	 David VomLehn <dvomlehn@cisco.com>
- *
- * Description:	 Defines the platform resources for the SA settop.
- *
- * NOTE: The bootloader allocates persistent memory at an address which is
- * 16 MiB below the end of the highest address in KSEG0. All fixed
- * address memory reservations must avoid this region.
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-
-#include <asm/mach-powertv/ioremap.h>
-
-/*
- * Define the sizes of and masks for grains in physical and DMA space. The
- * values are the same but the types are not.
- */
-#define IOR_PHYS_GRAIN		((phys_addr_t) 1 << IOR_LSBITS)
-#define IOR_PHYS_GRAIN_MASK	(IOR_PHYS_GRAIN - 1)
-
-#define IOR_DMA_GRAIN		((dma_addr_t) 1 << IOR_LSBITS)
-#define IOR_DMA_GRAIN_MASK	(IOR_DMA_GRAIN - 1)
-
-/*
- * Values that, when accessed by an index derived from a phys_addr_t and
- * added to phys_addr_t value, yield a DMA address
- */
-struct ior_phys_to_dma _ior_phys_to_dma[IOR_NUM_PHYS_TO_DMA];
-EXPORT_SYMBOL(_ior_phys_to_dma);
-
-/*
- * Values that, when accessed by an index derived from a dma_addr_t and
- * added to that dma_addr_t value, yield a physical address
- */
-struct ior_dma_to_phys _ior_dma_to_phys[IOR_NUM_DMA_TO_PHYS];
-EXPORT_SYMBOL(_ior_dma_to_phys);
-
-/**
- * setup_dma_to_phys - set up conversion from DMA to physical addresses
- * @dma_idx:	Top IOR_LSBITS bits of the DMA address, i.e. an index
- *		into the array _dma_to_phys.
- * @delta:	Value that, when added to the DMA address, will yield the
- *		physical address
- * @s:		Number of bytes in the section of memory with the given delta
- *		between DMA and physical addresses.
- */
-static void setup_dma_to_phys(dma_addr_t dma, phys_addr_t delta, dma_addr_t s)
-{
-	int dma_idx, first_idx, last_idx;
-	phys_addr_t first, last;
-
-	/*
-	 * Calculate the first and last indices, rounding the first up and
-	 * the second down.
-	 */
-	first = dma & ~IOR_DMA_GRAIN_MASK;
-	last = (dma + s - 1) & ~IOR_DMA_GRAIN_MASK;
-	first_idx = first >> IOR_LSBITS;		/* Convert to indices */
-	last_idx = last >> IOR_LSBITS;
-
-	for (dma_idx = first_idx; dma_idx <= last_idx; dma_idx++)
-		_ior_dma_to_phys[dma_idx].offset = delta >> IOR_DMA_SHIFT;
-}
-
-/**
- * setup_phys_to_dma - set up conversion from DMA to physical addresses
- * @phys_idx:	Top IOR_LSBITS bits of the DMA address, i.e. an index
- *		into the array _phys_to_dma.
- * @delta:	Value that, when added to the DMA address, will yield the
- *		physical address
- * @s:		Number of bytes in the section of memory with the given delta
- *		between DMA and physical addresses.
- */
-static void setup_phys_to_dma(phys_addr_t phys, dma_addr_t delta, phys_addr_t s)
-{
-	int phys_idx, first_idx, last_idx;
-	phys_addr_t first, last;
-
-	/*
-	 * Calculate the first and last indices, rounding the first up and
-	 * the second down.
-	 */
-	first = phys & ~IOR_PHYS_GRAIN_MASK;
-	last = (phys + s - 1) & ~IOR_PHYS_GRAIN_MASK;
-	first_idx = first >> IOR_LSBITS;		/* Convert to indices */
-	last_idx = last >> IOR_LSBITS;
-
-	for (phys_idx = first_idx; phys_idx <= last_idx; phys_idx++)
-		_ior_phys_to_dma[phys_idx].offset = delta >> IOR_PHYS_SHIFT;
-}
-
-/**
- * ioremap_add_map - add to the physical and DMA address conversion arrays
- * @phys:	Process's view of the address of the start of the memory chunk
- * @dma:	DMA address of the start of the memory chunk
- * @size:	Size, in bytes, of the chunk of memory
- *
- * NOTE: It might be obvious, but the assumption is that all @size bytes have
- * the same offset between the physical address and the DMA address.
- */
-void ioremap_add_map(phys_addr_t phys, phys_addr_t dma, phys_addr_t size)
-{
-	if (size == 0)
-		return;
-
-	if ((dma & IOR_DMA_GRAIN_MASK) != 0 ||
-		(phys & IOR_PHYS_GRAIN_MASK) != 0 ||
-		(size & IOR_PHYS_GRAIN_MASK) != 0)
-		pr_crit("Memory allocation must be in chunks of 0x%x bytes\n",
-			IOR_PHYS_GRAIN);
-
-	setup_dma_to_phys(dma, phys - dma, size);
-	setup_phys_to_dma(phys, dma - phys, size);
-}
diff --git a/arch/mips/powertv/memory.c b/arch/mips/powertv/memory.c
deleted file mode 100644
index bc2f3ca22b41..000000000000
--- a/arch/mips/powertv/memory.c
+++ /dev/null
@@ -1,353 +0,0 @@
-/*
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
- * Portions copyright (C) 2009 Cisco Systems, Inc.
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Apparently originally from arch/mips/malta-memory.c. Modified to work
- * with the PowerTV bootloader.
- */
-#include <linux/init.h>
-#include <linux/mm.h>
-#include <linux/bootmem.h>
-#include <linux/pfn.h>
-#include <linux/string.h>
-
-#include <asm/bootinfo.h>
-#include <asm/page.h>
-#include <asm/sections.h>
-
-#include <asm/mach-powertv/asic.h>
-#include <asm/mach-powertv/ioremap.h>
-
-#include "init.h"
-
-/* Memory constants */
-#define KIBIBYTE(n)		((n) * 1024)	/* Number of kibibytes */
-#define MEBIBYTE(n)		((n) * KIBIBYTE(1024)) /* Number of mebibytes */
-#define DEFAULT_MEMSIZE		MEBIBYTE(128)	/* If no memsize provided */
-
-#define BLDR_SIZE	KIBIBYTE(256)		/* Memory reserved for bldr */
-#define RV_SIZE		MEBIBYTE(4)		/* Size of reset vector */
-
-#define LOW_MEM_END	0x20000000		/* Highest low memory address */
-#define BLDR_ALIAS	0x10000000		/* Bootloader address */
-#define RV_PHYS		0x1fc00000		/* Reset vector address */
-#define LOW_RAM_END	RV_PHYS			/* End of real RAM in low mem */
-
-/*
- * Very low-level conversion from processor physical address to device
- * DMA address for the first bank of memory.
- */
-#define PHYS_TO_DMA(paddr)	((paddr) + (CONFIG_LOW_RAM_DMA - LOW_RAM_ALIAS))
-
-unsigned long ptv_memsize;
-
-/*
- * struct low_mem_reserved - Items in low memory that are reserved
- * @start:	Physical address of item
- * @size:	Size, in bytes, of this item
- * @is_aliased: True if this is RAM aliased from another location. If false,
- *		it is something other than aliased RAM and the RAM in the
- *		unaliased address is still visible outside of low memory.
- */
-struct low_mem_reserved {
-	phys_addr_t	start;
-	phys_addr_t	size;
-	bool		is_aliased;
-};
-
-/*
- * Must be in ascending address order
- */
-struct low_mem_reserved low_mem_reserved[] = {
-	{BLDR_ALIAS, BLDR_SIZE, true},	/* Bootloader RAM */
-	{RV_PHYS, RV_SIZE, false},	/* Reset vector */
-};
-
-/*
- * struct mem_layout - layout of a piece of the system RAM
- * @phys:	Physical address of the start of this piece of RAM. This is the
- *		address at which both the processor and I/O devices see the
- *		RAM.
- * @alias:	Alias of this piece of memory in order to make it appear in
- *		the low memory part of the processor's address space. I/O
- *		devices don't see anything here.
- * @size:	Size, in bytes, of this piece of RAM
- */
-struct mem_layout {
-	phys_addr_t	phys;
-	phys_addr_t	alias;
-	phys_addr_t	size;
-};
-
-/*
- * struct mem_layout_list - list descriptor for layouts of system RAM pieces
- * @family:	Specifies the family being described
- * @n:		Number of &struct mem_layout elements
- * @layout:	Pointer to the list of &mem_layout structures
- */
-struct mem_layout_list {
-	enum family_type	family;
-	size_t			n;
-	struct mem_layout	*layout;
-};
-
-static struct mem_layout f1500_layout[] = {
-	{0x20000000, 0x10000000, MEBIBYTE(256)},
-};
-
-static struct mem_layout f4500_layout[] = {
-	{0x40000000, 0x10000000, MEBIBYTE(256)},
-	{0x20000000, 0x20000000, MEBIBYTE(32)},
-};
-
-static struct mem_layout f8500_layout[] = {
-	{0x40000000, 0x10000000, MEBIBYTE(256)},
-	{0x20000000, 0x20000000, MEBIBYTE(32)},
-	{0x30000000, 0x30000000, MEBIBYTE(32)},
-};
-
-static struct mem_layout fx600_layout[] = {
-	{0x20000000, 0x10000000, MEBIBYTE(256)},
-	{0x60000000, 0x60000000, MEBIBYTE(128)},
-};
-
-static struct mem_layout_list layout_list[] = {
-	{FAMILY_1500, ARRAY_SIZE(f1500_layout), f1500_layout},
-	{FAMILY_1500VZE, ARRAY_SIZE(f1500_layout), f1500_layout},
-	{FAMILY_1500VZF, ARRAY_SIZE(f1500_layout), f1500_layout},
-	{FAMILY_4500, ARRAY_SIZE(f4500_layout), f4500_layout},
-	{FAMILY_8500, ARRAY_SIZE(f8500_layout), f8500_layout},
-	{FAMILY_8500RNG, ARRAY_SIZE(f8500_layout), f8500_layout},
-	{FAMILY_4600, ARRAY_SIZE(fx600_layout), fx600_layout},
-	{FAMILY_4600VZA, ARRAY_SIZE(fx600_layout), fx600_layout},
-	{FAMILY_8600, ARRAY_SIZE(fx600_layout), fx600_layout},
-	{FAMILY_8600VZB, ARRAY_SIZE(fx600_layout), fx600_layout},
-};
-
-/* If we can't determine the layout, use this */
-static struct mem_layout default_layout[] = {
-	{0x20000000, 0x10000000, MEBIBYTE(128)},
-};
-
-/**
- * register_non_ram - register low memory not available for RAM usage
- */
-static __init void register_non_ram(void)
-{
-	int i;
-
-	for (i = 0; i < ARRAY_SIZE(low_mem_reserved); i++)
-		add_memory_region(low_mem_reserved[i].start,
-			low_mem_reserved[i].size, BOOT_MEM_RESERVED);
-}
-
-/**
- * get_memsize - get the size of memory as a single bank
- */
-static phys_addr_t get_memsize(void)
-{
-	static char cmdline[COMMAND_LINE_SIZE] __initdata;
-	phys_addr_t memsize = 0;
-	char *memsize_str;
-	char *ptr;
-
-	/* Check the command line first for a memsize directive */
-	strcpy(cmdline, arcs_cmdline);
-	ptr = strstr(cmdline, "memsize=");
-	if (ptr && (ptr != cmdline) && (*(ptr - 1) != ' '))
-		ptr = strstr(ptr, " memsize=");
-
-	if (ptr) {
-		memsize = memparse(ptr + 8, &ptr);
-	} else {
-		/* otherwise look in the environment */
-		memsize_str = prom_getenv("memsize");
-
-		if (memsize_str != NULL) {
-			pr_info("prom memsize = %s\n", memsize_str);
-			memsize = simple_strtol(memsize_str, NULL, 0);
-		}
-
-		if (memsize == 0) {
-			if (_prom_memsize != 0) {
-				memsize = _prom_memsize;
-				pr_info("_prom_memsize = 0x%x\n", memsize);
-				/* add in memory that the bootloader doesn't
-				 * report */
-				memsize += BLDR_SIZE;
-			} else {
-				memsize = DEFAULT_MEMSIZE;
-				pr_info("Memsize not passed by bootloader, "
-					"defaulting to 0x%x\n", memsize);
-			}
-		}
-	}
-
-	return memsize;
-}
-
-/**
- * register_low_ram - register an aliased section of RAM
- * @p:		Alias address of memory
- * @n:		Number of bytes in this section of memory
- *
- * Returns the number of bytes registered
- *
- */
-static __init phys_addr_t register_low_ram(phys_addr_t p, phys_addr_t n)
-{
-	phys_addr_t s;
-	int i;
-	phys_addr_t orig_n;
-
-	orig_n = n;
-
-	BUG_ON(p + n > RV_PHYS);
-
-	for (i = 0; n != 0 && i < ARRAY_SIZE(low_mem_reserved); i++) {
-		phys_addr_t start;
-		phys_addr_t size;
-
-		start = low_mem_reserved[i].start;
-		size = low_mem_reserved[i].size;
-
-		/* Handle memory before this low memory section */
-		if (p < start) {
-			phys_addr_t s;
-			s = min(n, start - p);
-			add_memory_region(p, s, BOOT_MEM_RAM);
-			p += s;
-			n -= s;
-		}
-
-		/* Handle the low memory section itself. If it's aliased,
-		 * we reduce the number of byes left, but if not, the RAM
-		 * is available elsewhere and we don't reduce the number of
-		 * bytes remaining. */
-		if (p == start) {
-			if (low_mem_reserved[i].is_aliased) {
-				s = min(n, size);
-				n -= s;
-				p += s;
-			} else
-				p += n;
-		}
-	}
-
-	return orig_n - n;
-}
-
-/*
- * register_ram - register real RAM
- * @p:	Address of memory as seen by devices
- * @alias:	If the memory is seen at an additional address by the processor,
- *		this will be the address, otherwise it is the same as @p.
- * @n:		Number of bytes in this section of memory
- */
-static __init void register_ram(phys_addr_t p, phys_addr_t alias,
-	phys_addr_t n)
-{
-	/*
-	 * If some or all of this memory has an alias, break it into the
-	 * aliased and non-aliased portion.
-	 */
-	if (p != alias) {
-		phys_addr_t alias_size;
-		phys_addr_t registered;
-
-		alias_size = min(n, LOW_RAM_END - alias);
-		registered = register_low_ram(alias, alias_size);
-		ioremap_add_map(alias, p, n);
-		n -= registered;
-		p += registered;
-	}
-
-#ifdef CONFIG_HIGHMEM
-	if (n != 0) {
-		add_memory_region(p, n, BOOT_MEM_RAM);
-		ioremap_add_map(p, p, n);
-	}
-#endif
-}
-
-/**
- * register_address_space - register things in the address space
- * @memsize:	Number of bytes of RAM installed
- *
- * Takes the given number of bytes of RAM and registers as many of the regions,
- * or partial regions, as it can. So, the default configuration might have
- * two regions with 256 MiB each. If the memsize passed in on the command line
- * is 384 MiB, it will register the first region with 256 MiB and the second
- * with 128 MiB.
- */
-static __init void register_address_space(phys_addr_t memsize)
-{
-	int i;
-	phys_addr_t size;
-	size_t n;
-	struct mem_layout *layout;
-	enum family_type family;
-
-	/*
-	 * Register all of the things that aren't available to the kernel as
-	 * memory.
-	 */
-	register_non_ram();
-
-	/* Find the appropriate memory description */
-	family = platform_get_family();
-
-	for (i = 0; i < ARRAY_SIZE(layout_list); i++) {
-		if (layout_list[i].family == family)
-			break;
-	}
-
-	if (i == ARRAY_SIZE(layout_list)) {
-		n = ARRAY_SIZE(default_layout);
-		layout = default_layout;
-	} else {
-		n = layout_list[i].n;
-		layout = layout_list[i].layout;
-	}
-
-	for (i = 0; memsize != 0 && i < n; i++) {
-		size = min(memsize, layout[i].size);
-		register_ram(layout[i].phys, layout[i].alias, size);
-		memsize -= size;
-	}
-}
-
-void __init prom_meminit(void)
-{
-	ptv_memsize = get_memsize();
-	register_address_space(ptv_memsize);
-}
-
-void __init prom_free_prom_memory(void)
-{
-	unsigned long addr;
-	int i;
-
-	for (i = 0; i < boot_mem_map.nr_map; i++) {
-		if (boot_mem_map.map[i].type != BOOT_MEM_ROM_DATA)
-			continue;
-
-		addr = boot_mem_map.map[i].addr;
-		free_init_pages("prom memory",
-				addr, addr + boot_mem_map.map[i].size);
-	}
-}
diff --git a/arch/mips/powertv/pci/Makefile b/arch/mips/powertv/pci/Makefile
deleted file mode 100644
index 2610a6af5b2c..000000000000
--- a/arch/mips/powertv/pci/Makefile
+++ /dev/null
@@ -1,19 +0,0 @@
-#
-# Copyright (C) 2009  Scientific-Atlanta, Inc.
-#
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
-#
-
-obj-$(CONFIG_PCI)	+= fixup-powertv.o
diff --git a/arch/mips/powertv/pci/fixup-powertv.c b/arch/mips/powertv/pci/fixup-powertv.c
deleted file mode 100644
index d7ecbae64a6e..000000000000
--- a/arch/mips/powertv/pci/fixup-powertv.c
+++ /dev/null
@@ -1,37 +0,0 @@
-#include <linux/init.h>
-#include <linux/export.h>
-#include <linux/pci.h>
-#include <asm/mach-powertv/interrupts.h>
-#include "powertv-pci.h"
-
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-{
-	return asic_pcie_map_irq(dev, slot, pin);
-}
-
-/* Do platform specific device initialization at pci_enable_device() time */
-int pcibios_plat_dev_init(struct pci_dev *dev)
-{
-	return 0;
-}
-
-/*
- * asic_pcie_map_irq
- *
- * Parameters:
- * *dev - pointer to a pci_dev structure  (not used)
- * slot - slot number  (not used)
- * pin - pin number  (not used)
- *
- * Return Value:
- * Returns: IRQ number (always the PCI Express IRQ number)
- *
- * Description:
- * asic_pcie_map_irq will return the IRQ number of the PCI Express interrupt.
- *
- */
-int asic_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-{
-	return irq_pciexp;
-}
-EXPORT_SYMBOL(asic_pcie_map_irq);
diff --git a/arch/mips/powertv/pci/powertv-pci.h b/arch/mips/powertv/pci/powertv-pci.h
deleted file mode 100644
index 1b5886bbd759..000000000000
--- a/arch/mips/powertv/pci/powertv-pci.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- *				powertv-pci.c
- *
- * Copyright (C) 2009  Cisco Systems, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-/*
- * Local definitions for the powertv PCI code
- */
-
-#ifndef _POWERTV_PCI_POWERTV_PCI_H_
-#define _POWERTV_PCI_POWERTV_PCI_H_
-extern int asic_pcie_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
-extern int asic_pcie_init(void);
-extern int asic_pcie_init(void);
-
-extern int log_level;
-#endif
diff --git a/arch/mips/powertv/powertv-clock.h b/arch/mips/powertv/powertv-clock.h
deleted file mode 100644
index d94c54311485..000000000000
--- a/arch/mips/powertv/powertv-clock.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Copyright (C) 2009  Cisco Systems, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
- * Author: David VomLehn
- */
-
-#ifndef _POWERTV_POWERTV_CLOCK_H
-#define _POWERTV_POWERTV_CLOCK_H
-extern int powertv_clockevent_init(void);
-extern void powertv_clocksource_init(void);
-extern unsigned int mips_get_pll_freq(void);
-#endif
diff --git a/arch/mips/powertv/powertv-usb.c b/arch/mips/powertv/powertv-usb.c
deleted file mode 100644
index d845eace58e9..000000000000
--- a/arch/mips/powertv/powertv-usb.c
+++ /dev/null
@@ -1,404 +0,0 @@
-/*
- *				powertv-usb.c
- *
- * Description:	 ASIC-specific USB device setup and shutdown
- *
- * Copyright (C) 2005-2009 Scientific-Atlanta, Inc.
- * Copyright (C) 2009 Cisco Systems, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * Author:	 Ken Eppinett
- *		 David Schleef <ds@schleef.org>
- *
- * NOTE: The bootloader allocates persistent memory at an address which is
- * 16 MiB below the end of the highest address in KSEG0. All fixed
- * address memory reservations must avoid this region.
- */
-
-#include <linux/kernel.h>
-#include <linux/export.h>
-#include <linux/ioport.h>
-#include <linux/platform_device.h>
-#include <asm/mach-powertv/asic.h>
-#include <asm/mach-powertv/interrupts.h>
-
-/* misc_clk_ctl1 values */
-#define MCC1_30MHZ_POWERUP_SELECT	(1 << 14)
-#define MCC1_DIV9			(1 << 13)
-#define MCC1_ETHMIPS_POWERUP_SELECT	(1 << 11)
-#define MCC1_USB_POWERUP_SELECT		(1 << 1)
-#define MCC1_CLOCK108_POWERUP_SELECT	(1 << 0)
-
-/* Possible values for clock select */
-#define MCC1_USB_CLOCK_HIGH_Z		(0 << 4)
-#define MCC1_USB_CLOCK_48MHZ		(1 << 4)
-#define MCC1_USB_CLOCK_24MHZ		(2 << 4)
-#define MCC1_USB_CLOCK_6MHZ		(3 << 4)
-
-#define MCC1_CONFIG	(MCC1_30MHZ_POWERUP_SELECT |		\
-			 MCC1_DIV9 |				\
-			 MCC1_ETHMIPS_POWERUP_SELECT |		\
-			 MCC1_USB_POWERUP_SELECT |		\
-			 MCC1_CLOCK108_POWERUP_SELECT)
-
-/* misc_clk_ctl2 values */
-#define MCC2_GMII_GCLK_TO_PAD		(1 << 31)
-#define MCC2_ETHER125_0_CLOCK_SELECT	(1 << 29)
-#define MCC2_RMII_0_CLOCK_SELECT	(1 << 28)
-#define MCC2_GMII_TX0_CLOCK_SELECT	(1 << 27)
-#define MCC2_GMII_RX0_CLOCK_SELECT	(1 << 26)
-#define MCC2_ETHER125_1_CLOCK_SELECT	(1 << 24)
-#define MCC2_RMII_1_CLOCK_SELECT	(1 << 23)
-#define MCC2_GMII_TX1_CLOCK_SELECT	(1 << 22)
-#define MCC2_GMII_RX1_CLOCK_SELECT	(1 << 21)
-#define MCC2_ETHER125_2_CLOCK_SELECT	(1 << 19)
-#define MCC2_RMII_2_CLOCK_SELECT	(1 << 18)
-#define MCC2_GMII_TX2_CLOCK_SELECT	(1 << 17)
-#define MCC2_GMII_RX2_CLOCK_SELECT	(1 << 16)
-
-#define ETHER_CLK_CONFIG	(MCC2_GMII_GCLK_TO_PAD |	\
-				 MCC2_ETHER125_0_CLOCK_SELECT | \
-				 MCC2_RMII_0_CLOCK_SELECT |	\
-				 MCC2_GMII_TX0_CLOCK_SELECT |	\
-				 MCC2_GMII_RX0_CLOCK_SELECT |	\
-				 MCC2_ETHER125_1_CLOCK_SELECT | \
-				 MCC2_RMII_1_CLOCK_SELECT |	\
-				 MCC2_GMII_TX1_CLOCK_SELECT |	\
-				 MCC2_GMII_RX1_CLOCK_SELECT |	\
-				 MCC2_ETHER125_2_CLOCK_SELECT | \
-				 MCC2_RMII_2_CLOCK_SELECT |	\
-				 MCC2_GMII_TX2_CLOCK_SELECT |	\
-				 MCC2_GMII_RX2_CLOCK_SELECT)
-
-/* misc_clk_ctl2 definitions for Gaia */
-#define FSX4A_REF_SELECT		(1 << 16)
-#define FSX4B_REF_SELECT		(1 << 17)
-#define FSX4C_REF_SELECT		(1 << 18)
-#define DDR_PLL_REF_SELECT		(1 << 19)
-#define MIPS_PLL_REF_SELECT		(1 << 20)
-
-/* Definitions for the QAM frequency select register FS432X4A4_QAM_CTL */
-#define QAM_FS_SDIV_SHIFT		29
-#define QAM_FS_MD_SHIFT			24
-#define QAM_FS_MD_MASK			0x1f	/* Cut down to 5 bits */
-#define QAM_FS_PE_SHIFT			8
-
-#define QAM_FS_DISABLE_DIVIDE_BY_3		(1 << 5)
-#define QAM_FS_ENABLE_PROGRAM			(1 << 4)
-#define QAM_FS_ENABLE_OUTPUT			(1 << 3)
-#define QAM_FS_SELECT_TEST_BYPASS		(1 << 2)
-#define QAM_FS_DISABLE_DIGITAL_STANDBY		(1 << 1)
-#define QAM_FS_CHOOSE_FS			(1 << 0)
-
-/* Definitions for fs432x4a_ctl register */
-#define QAM_FS_NSDIV_54MHZ			(1 << 2)
-
-/* Definitions for bcm1_usb2_ctl register */
-#define BCM1_USB2_CTL_BISTOK				(1 << 11)
-#define BCM1_USB2_CTL_PORT2_SHIFT_JK			(1 << 7)
-#define BCM1_USB2_CTL_PORT1_SHIFT_JK			(1 << 6)
-#define BCM1_USB2_CTL_PORT2_FAST_EDGE			(1 << 5)
-#define BCM1_USB2_CTL_PORT1_FAST_EDGE			(1 << 4)
-#define BCM1_USB2_CTL_EHCI_PRT_PWR_ACTIVE_HIGH		(1 << 1)
-#define BCM1_USB2_CTL_APP_PRT_OVRCUR_IN_ACTIVE_HIGH	(1 << 0)
-
-/* Definitions for crt_spare register */
-#define CRT_SPARE_PORT2_SHIFT_JK			(1 << 21)
-#define CRT_SPARE_PORT1_SHIFT_JK			(1 << 20)
-#define CRT_SPARE_PORT2_FAST_EDGE			(1 << 19)
-#define CRT_SPARE_PORT1_FAST_EDGE			(1 << 18)
-#define CRT_SPARE_DIVIDE_BY_9_FROM_432			(1 << 17)
-#define CRT_SPARE_USB_DIVIDE_BY_9			(1 << 16)
-
-/* Definitions for usb2_stbus_obc register */
-#define USB_STBUS_OBC_STORE32_LOAD32			0x3
-
-/* Definitions for usb2_stbus_mess_size register */
-#define USB2_STBUS_MESS_SIZE_2				0x1	/* 2 packets */
-
-/* Definitions for usb2_stbus_chunk_size register */
-#define USB2_STBUS_CHUNK_SIZE_2				0x1	/* 2 packets */
-
-/* Definitions for usb2_strap register */
-#define USB2_STRAP_HFREQ_SELECT				0x1
-
-/*
- * USB Host Resource Definition
- */
-
-static struct resource ehci_resources[] = {
-	{
-		.parent = &asic_resource,
-		.start	= 0,
-		.end	= 0xff,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.start	= irq_usbehci,
-		.end	= irq_usbehci,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static u64 ehci_dmamask = 0xffffffffULL;
-
-static struct platform_device ehci_device = {
-	.name = "powertv-ehci",
-	.id = 0,
-	.num_resources = 2,
-	.resource = ehci_resources,
-	.dev = {
-		.dma_mask = &ehci_dmamask,
-		.coherent_dma_mask = 0xffffffff,
-	},
-};
-
-static struct resource ohci_resources[] = {
-	{
-		.parent = &asic_resource,
-		.start	= 0,
-		.end	= 0xff,
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.start	= irq_usbohci,
-		.end	= irq_usbohci,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static u64 ohci_dmamask = 0xffffffffULL;
-
-static struct platform_device ohci_device = {
-	.name = "powertv-ohci",
-	.id = 0,
-	.num_resources = 2,
-	.resource = ohci_resources,
-	.dev = {
-		.dma_mask = &ohci_dmamask,
-		.coherent_dma_mask = 0xffffffff,
-	},
-};
-
-static unsigned usb_users;
-static DEFINE_SPINLOCK(usb_regs_lock);
-
-/*
- *
- * fs_update - set frequency synthesizer for USB
- * @pe_bits		Phase tap setting
- * @md_bits		Coarse selector bus for algorithm of phase tap
- * @sdiv_bits		Output divider setting
- * @disable_div_by_3	Either QAM_FS_DISABLE_DIVIDE_BY_3 or zero
- * @standby		Either QAM_FS_DISABLE_DIGITAL_STANDBY or zero
- *
- * QAM frequency selection code, which affects the frequency at which USB
- * runs. The frequency is calculated as:
- *			       2^15 * ndiv * Fin
- * Fout = ------------------------------------------------------------
- *	  (sdiv * (ipe * (1 + md/32) - (ipe - 2^15)*(1 + (md + 1)/32)))
- * where:
- * Fin		54 MHz
- * ndiv		QAM_FS_NSDIV_54MHZ ? 8 : 16
- * sdiv		1 << (sdiv_bits + 1)
- * ipe		Same as pe_bits
- * md		A five-bit, two's-complement integer (range [-16, 15]), which
- *		is the lower 5 bits of md_bits.
- */
-static void fs_update(u32 pe_bits, int md_bits, u32 sdiv_bits,
-	u32 disable_div_by_3, u32 standby)
-{
-	u32 val;
-
-	val = ((sdiv_bits << QAM_FS_SDIV_SHIFT) |
-		((md_bits & QAM_FS_MD_MASK) << QAM_FS_MD_SHIFT) |
-		(pe_bits << QAM_FS_PE_SHIFT) |
-		QAM_FS_ENABLE_OUTPUT |
-		standby |
-		disable_div_by_3);
-	asic_write(val, fs432x4b4_usb_ctl);
-	asic_write(val | QAM_FS_ENABLE_PROGRAM, fs432x4b4_usb_ctl);
-	asic_write(val | QAM_FS_ENABLE_PROGRAM | QAM_FS_CHOOSE_FS,
-		fs432x4b4_usb_ctl);
-}
-
-/*
- * usb_eye_configure - for optimizing the shape USB eye waveform
- * @set:	Bits to set in the register
- * @clear:	Bits to clear in the register; each bit with a one will
- *		be set in the register, zero bits will not be modified
- */
-static void usb_eye_configure(u32 set, u32 clear)
-{
-	u32 old;
-
-	old = asic_read(crt_spare);
-	old |= set;
-	old &= ~clear;
-	asic_write(old, crt_spare);
-}
-
-/*
- * platform_configure_usb - usb configuration based on platform type.
- */
-static void platform_configure_usb(void)
-{
-	u32 bcm1_usb2_ctl_value;
-	enum asic_type asic_type;
-	unsigned long flags;
-
-	spin_lock_irqsave(&usb_regs_lock, flags);
-	usb_users++;
-
-	if (usb_users != 1) {
-		spin_unlock_irqrestore(&usb_regs_lock, flags);
-		return;
-	}
-
-	asic_type = platform_get_asic();
-
-	switch (asic_type) {
-	case ASIC_ZEUS:
-		fs_update(0x0000, -15, 0x02, 0, 0);
-		bcm1_usb2_ctl_value = BCM1_USB2_CTL_EHCI_PRT_PWR_ACTIVE_HIGH |
-			BCM1_USB2_CTL_APP_PRT_OVRCUR_IN_ACTIVE_HIGH;
-		break;
-
-	case ASIC_CRONUS:
-	case ASIC_CRONUSLITE:
-		usb_eye_configure(0, CRT_SPARE_USB_DIVIDE_BY_9);
-		fs_update(0x8000, -14, 0x03, QAM_FS_DISABLE_DIVIDE_BY_3,
-			QAM_FS_DISABLE_DIGITAL_STANDBY);
-		bcm1_usb2_ctl_value = BCM1_USB2_CTL_EHCI_PRT_PWR_ACTIVE_HIGH |
-			BCM1_USB2_CTL_APP_PRT_OVRCUR_IN_ACTIVE_HIGH;
-		break;
-
-	case ASIC_CALLIOPE:
-		fs_update(0x0000, -15, 0x02, QAM_FS_DISABLE_DIVIDE_BY_3,
-			QAM_FS_DISABLE_DIGITAL_STANDBY);
-
-		switch (platform_get_family()) {
-		case FAMILY_1500VZE:
-			break;
-
-		case FAMILY_1500VZF:
-			usb_eye_configure(CRT_SPARE_PORT2_SHIFT_JK |
-				CRT_SPARE_PORT1_SHIFT_JK |
-				CRT_SPARE_PORT2_FAST_EDGE |
-				CRT_SPARE_PORT1_FAST_EDGE, 0);
-			break;
-
-		default:
-			usb_eye_configure(CRT_SPARE_PORT2_SHIFT_JK |
-				CRT_SPARE_PORT1_SHIFT_JK, 0);
-			break;
-		}
-
-		bcm1_usb2_ctl_value = BCM1_USB2_CTL_BISTOK |
-			BCM1_USB2_CTL_EHCI_PRT_PWR_ACTIVE_HIGH |
-			BCM1_USB2_CTL_APP_PRT_OVRCUR_IN_ACTIVE_HIGH;
-		break;
-
-	case ASIC_GAIA:
-		fs_update(0x8000, -14, 0x03, QAM_FS_DISABLE_DIVIDE_BY_3,
-			QAM_FS_DISABLE_DIGITAL_STANDBY);
-		bcm1_usb2_ctl_value = BCM1_USB2_CTL_BISTOK |
-			BCM1_USB2_CTL_EHCI_PRT_PWR_ACTIVE_HIGH |
-			BCM1_USB2_CTL_APP_PRT_OVRCUR_IN_ACTIVE_HIGH;
-		break;
-
-	default:
-		pr_err("Unknown ASIC type: %d\n", asic_type);
-		bcm1_usb2_ctl_value = 0;
-		break;
-	}
-
-	/* turn on USB power */
-	asic_write(0, usb2_strap);
-	/* Enable all OHCI interrupts */
-	asic_write(bcm1_usb2_ctl_value, usb2_control);
-	/* usb2_stbus_obc store32/load32 */
-	asic_write(USB_STBUS_OBC_STORE32_LOAD32, usb2_stbus_obc);
-	/* usb2_stbus_mess_size 2 packets */
-	asic_write(USB2_STBUS_MESS_SIZE_2, usb2_stbus_mess_size);
-	/* usb2_stbus_chunk_size 2 packets */
-	asic_write(USB2_STBUS_CHUNK_SIZE_2, usb2_stbus_chunk_size);
-	spin_unlock_irqrestore(&usb_regs_lock, flags);
-}
-
-static void platform_unconfigure_usb(void)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&usb_regs_lock, flags);
-	usb_users--;
-	if (usb_users == 0)
-		asic_write(USB2_STRAP_HFREQ_SELECT, usb2_strap);
-	spin_unlock_irqrestore(&usb_regs_lock, flags);
-}
-
-/*
- * Set up the USB EHCI interface
- */
-void platform_configure_usb_ehci()
-{
-	platform_configure_usb();
-}
-EXPORT_SYMBOL(platform_configure_usb_ehci);
-
-/*
- * Set up the USB OHCI interface
- */
-void platform_configure_usb_ohci()
-{
-	platform_configure_usb();
-}
-EXPORT_SYMBOL(platform_configure_usb_ohci);
-
-/*
- * Shut the USB EHCI interface down
- */
-void platform_unconfigure_usb_ehci()
-{
-	platform_unconfigure_usb();
-}
-EXPORT_SYMBOL(platform_unconfigure_usb_ehci);
-
-/*
- * Shut the USB OHCI interface down
- */
-void platform_unconfigure_usb_ohci()
-{
-	platform_unconfigure_usb();
-}
-EXPORT_SYMBOL(platform_unconfigure_usb_ohci);
-
-/**
- * platform_devices_init - sets up USB device resourse.
- */
-int __init platform_usb_devices_init(struct platform_device **ehci_dev,
-	struct platform_device **ohci_dev)
-{
-	*ehci_dev = &ehci_device;
-	ehci_resources[0].start = asic_reg_phys_addr(ehci_hcapbase);
-	ehci_resources[0].end += ehci_resources[0].start;
-
-	*ohci_dev = &ohci_device;
-	ohci_resources[0].start = asic_reg_phys_addr(ohci_hc_revision);
-	ohci_resources[0].end += ohci_resources[0].start;
-
-	return 0;
-}
diff --git a/arch/mips/powertv/powertv_setup.c b/arch/mips/powertv/powertv_setup.c
deleted file mode 100644
index 24689bff1039..000000000000
--- a/arch/mips/powertv/powertv_setup.c
+++ /dev/null
@@ -1,319 +0,0 @@
-/*
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
- * Portions copyright (C) 2009 Cisco Systems, Inc.
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- */
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/ioport.h>
-#include <linux/pci.h>
-#include <linux/screen_info.h>
-#include <linux/notifier.h>
-#include <linux/etherdevice.h>
-#include <linux/if_ether.h>
-#include <linux/ctype.h>
-#include <linux/cpu.h>
-#include <linux/time.h>
-
-#include <asm/bootinfo.h>
-#include <asm/irq.h>
-#include <asm/mips-boards/generic.h>
-#include <asm/dma.h>
-#include <asm/asm.h>
-#include <asm/traps.h>
-#include <asm/asm-offsets.h>
-#include "reset.h"
-
-#define VAL(n)		STR(n)
-
-/*
- * Macros for loading addresses and storing registers:
- * LONG_L_	Stringified version of LONG_L for use in asm() statement
- * LONG_S_	Stringified version of LONG_S for use in asm() statement
- * PTR_LA_	Stringified version of PTR_LA for use in asm() statement
- * REG_SIZE	Number of 8-bit bytes in a full width register
- */
-#define LONG_L_		VAL(LONG_L) " "
-#define LONG_S_		VAL(LONG_S) " "
-#define PTR_LA_		VAL(PTR_LA) " "
-
-#ifdef CONFIG_64BIT
-#warning TODO: 64-bit code needs to be verified
-#define REG_SIZE	"8"		/* In bytes */
-#endif
-
-#ifdef CONFIG_32BIT
-#define REG_SIZE	"4"		/* In bytes */
-#endif
-
-static void register_panic_notifier(void);
-static int panic_handler(struct notifier_block *notifier_block,
-	unsigned long event, void *cause_string);
-
-const char *get_system_type(void)
-{
-	return "PowerTV";
-}
-
-void __init plat_mem_setup(void)
-{
-	panic_on_oops = 1;
-	register_panic_notifier();
-
-#if 0
-	mips_pcibios_init();
-#endif
-	mips_reboot_setup();
-}
-
-/*
- * Install a panic notifier for platform-specific diagnostics
- */
-static void register_panic_notifier()
-{
-	static struct notifier_block panic_notifier = {
-		.notifier_call = panic_handler,
-		.next = NULL,
-		.priority	= INT_MAX
-	};
-	atomic_notifier_chain_register(&panic_notifier_list, &panic_notifier);
-}
-
-static int panic_handler(struct notifier_block *notifier_block,
-	unsigned long event, void *cause_string)
-{
-	struct pt_regs	my_regs;
-
-	/* Save all of the registers */
-	{
-		unsigned long	at, v0, v1; /* Must be on the stack */
-
-		/* Start by saving $at and v0 on the stack. We use $at
-		 * ourselves, but it looks like the compiler may use v0 or v1
-		 * to load the address of the pt_regs structure. We'll come
-		 * back later to store the registers in the pt_regs
-		 * structure. */
-		__asm__ __volatile__ (
-			".set	noat\n"
-			LONG_S_		"$at, %[at]\n"
-			LONG_S_		"$2, %[v0]\n"
-			LONG_S_		"$3, %[v1]\n"
-		:
-			[at] "=m" (at),
-			[v0] "=m" (v0),
-			[v1] "=m" (v1)
-		:
-		:	"at"
-		);
-
-		__asm__ __volatile__ (
-			".set	noat\n"
-			"move		$at, %[pt_regs]\n"
-
-			/* Argument registers */
-			LONG_S_		"$4, " VAL(PT_R4) "($at)\n"
-			LONG_S_		"$5, " VAL(PT_R5) "($at)\n"
-			LONG_S_		"$6, " VAL(PT_R6) "($at)\n"
-			LONG_S_		"$7, " VAL(PT_R7) "($at)\n"
-
-			/* Temporary regs */
-			LONG_S_		"$8, " VAL(PT_R8) "($at)\n"
-			LONG_S_		"$9, " VAL(PT_R9) "($at)\n"
-			LONG_S_		"$10, " VAL(PT_R10) "($at)\n"
-			LONG_S_		"$11, " VAL(PT_R11) "($at)\n"
-			LONG_S_		"$12, " VAL(PT_R12) "($at)\n"
-			LONG_S_		"$13, " VAL(PT_R13) "($at)\n"
-			LONG_S_		"$14, " VAL(PT_R14) "($at)\n"
-			LONG_S_		"$15, " VAL(PT_R15) "($at)\n"
-
-			/* "Saved" registers */
-			LONG_S_		"$16, " VAL(PT_R16) "($at)\n"
-			LONG_S_		"$17, " VAL(PT_R17) "($at)\n"
-			LONG_S_		"$18, " VAL(PT_R18) "($at)\n"
-			LONG_S_		"$19, " VAL(PT_R19) "($at)\n"
-			LONG_S_		"$20, " VAL(PT_R20) "($at)\n"
-			LONG_S_		"$21, " VAL(PT_R21) "($at)\n"
-			LONG_S_		"$22, " VAL(PT_R22) "($at)\n"
-			LONG_S_		"$23, " VAL(PT_R23) "($at)\n"
-
-			/* Add'l temp regs */
-			LONG_S_		"$24, " VAL(PT_R24) "($at)\n"
-			LONG_S_		"$25, " VAL(PT_R25) "($at)\n"
-
-			/* Kernel temp regs */
-			LONG_S_		"$26, " VAL(PT_R26) "($at)\n"
-			LONG_S_		"$27, " VAL(PT_R27) "($at)\n"
-
-			/* Global pointer, stack pointer, frame pointer and
-			 * return address */
-			LONG_S_		"$gp, " VAL(PT_R28) "($at)\n"
-			LONG_S_		"$sp, " VAL(PT_R29) "($at)\n"
-			LONG_S_		"$fp, " VAL(PT_R30) "($at)\n"
-			LONG_S_		"$ra, " VAL(PT_R31) "($at)\n"
-
-			/* Now we can get the $at and v0 registers back and
-			 * store them */
-			LONG_L_		"$8, %[at]\n"
-			LONG_S_		"$8, " VAL(PT_R1) "($at)\n"
-			LONG_L_		"$8, %[v0]\n"
-			LONG_S_		"$8, " VAL(PT_R2) "($at)\n"
-			LONG_L_		"$8, %[v1]\n"
-			LONG_S_		"$8, " VAL(PT_R3) "($at)\n"
-		:
-		:
-			[at] "m" (at),
-			[v0] "m" (v0),
-			[v1] "m" (v1),
-			[pt_regs] "r" (&my_regs)
-		:	"at", "t0"
-		);
-
-		/* Set the current EPC value to be the current location in this
-		 * function */
-		__asm__ __volatile__ (
-			".set	noat\n"
-		"1:\n"
-			PTR_LA_		"$at, 1b\n"
-			LONG_S_		"$at, %[cp0_epc]\n"
-		:
-			[cp0_epc] "=m" (my_regs.cp0_epc)
-		:
-		:	"at"
-		);
-
-		my_regs.cp0_cause = read_c0_cause();
-		my_regs.cp0_status = read_c0_status();
-	}
-
-	pr_crit("I'm feeling a bit sleepy. hmmmmm... perhaps a nap would... "
-		"zzzz... \n");
-
-	return NOTIFY_DONE;
-}
-
-/* Information about the RF MAC address, if one was supplied on the
- * command line. */
-static bool have_rfmac;
-static u8 rfmac[ETH_ALEN];
-
-static int rfmac_param(char *p)
-{
-	u8	*q;
-	bool	is_high_nibble;
-	int	c;
-
-	/* Skip a leading "0x", if present */
-	if (*p == '0' && *(p+1) == 'x')
-		p += 2;
-
-	q = rfmac;
-	is_high_nibble = true;
-
-	for (c = (unsigned char) *p++;
-		isxdigit(c) && q - rfmac < ETH_ALEN;
-		c = (unsigned char) *p++) {
-		int	nibble;
-
-		nibble = (isdigit(c) ? (c - '0') :
-			(isupper(c) ? c - 'A' + 10 : c - 'a' + 10));
-
-		if (is_high_nibble)
-			*q = nibble << 4;
-		else
-			*q++ |= nibble;
-
-		is_high_nibble = !is_high_nibble;
-	}
-
-	/* If we parsed all the way to the end of the parameter value and
-	 * parsed all ETH_ALEN bytes, we have a usable RF MAC address */
-	have_rfmac = (c == '\0' && q - rfmac == ETH_ALEN);
-
-	return 0;
-}
-
-early_param("rfmac", rfmac_param);
-
-/*
- * Generate an Ethernet MAC address that has a good chance of being unique.
- * @addr:	Pointer to six-byte array containing the Ethernet address
- * Generates an Ethernet MAC address that is highly likely to be unique for
- * this particular system on a network with other systems of the same type.
- *
- * The problem we are solving is that, when eth_random_addr() is used to
- * generate MAC addresses at startup, there isn't much entropy for the random
- * number generator to use and the addresses it produces are fairly likely to
- * be the same as those of other identical systems on the same local network.
- * This is true even for relatively small numbers of systems (for the reason
- * why, see the Wikipedia entry for "Birthday problem" at:
- *	http://en.wikipedia.org/wiki/Birthday_problem
- *
- * The good news is that we already have a MAC address known to be unique, the
- * RF MAC address. The bad news is that this address is already in use on the
- * RF interface. Worse, the obvious trick, taking the RF MAC address and
- * turning on the locally managed bit, has already been used for other devices.
- * Still, this does give us something to work with.
- *
- * The approach we take is:
- * 1.	If we can't get the RF MAC Address, just call eth_random_addr.
- * 2.	Use the 24-bit NIC-specific bits of the RF MAC address as the last 24
- *	bits of the new address. This is very likely to be unique, except for
- *	the current box.
- * 3.	To avoid using addresses already on the current box, we set the top
- *	six bits of the address with a value different from any currently
- *	registered Scientific Atlanta organizationally unique identifyer
- *	(OUI). This avoids duplication with any addresses on the system that
- *	were generated from valid Scientific Atlanta-registered address by
- *	simply flipping the locally managed bit.
- * 4.	We aren't generating a multicast address, so we leave the multicast
- *	bit off. Since we aren't using a registered address, we have to set
- *	the locally managed bit.
- * 5.	We then randomly generate the remaining 16-bits. This does two
- *	things:
- *	a.	It allows us to call this function for more than one device
- *		in this system
- *	b.	It ensures that things will probably still work even if
- *		some device on the device network has a locally managed
- *		address that matches the top six bits from step 2.
- */
-void platform_random_ether_addr(u8 addr[ETH_ALEN])
-{
-	const int num_random_bytes = 2;
-	const unsigned char non_sciatl_oui_bits = 0xc0u;
-	const unsigned char mac_addr_locally_managed = (1 << 1);
-
-	if (!have_rfmac) {
-		pr_warning("rfmac not available on command line; "
-			"generating random MAC address\n");
-		eth_random_addr(addr);
-	}
-
-	else {
-		int	i;
-
-		/* Set the first byte to something that won't match a Scientific
-		 * Atlanta OUI, is locally managed, and isn't a multicast
-		 * address */
-		addr[0] = non_sciatl_oui_bits | mac_addr_locally_managed;
-
-		/* Get some bytes of random address information */
-		get_random_bytes(&addr[1], num_random_bytes);
-
-		/* Copy over the NIC-specific bits of the RF MAC address */
-		for (i = 1 + num_random_bytes; i < ETH_ALEN; i++)
-			addr[i] = rfmac[i];
-	}
-}
diff --git a/arch/mips/powertv/reset.c b/arch/mips/powertv/reset.c
deleted file mode 100644
index 11c32fbf2784..000000000000
--- a/arch/mips/powertv/reset.c
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
- * Portions copyright (C) 2009 Cisco Systems, Inc.
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- */
-#include <linux/pm.h>
-
-#include <linux/io.h>
-#include <asm/reboot.h>			/* Not included by linux/reboot.h */
-
-#include <asm/mach-powertv/asic_regs.h>
-#include "reset.h"
-
-static void mips_machine_restart(char *command)
-{
-	writel(0x1, asic_reg_addr(watchdog));
-}
-
-void mips_reboot_setup(void)
-{
-	_machine_restart = mips_machine_restart;
-}
diff --git a/arch/mips/powertv/reset.h b/arch/mips/powertv/reset.h
deleted file mode 100644
index 888fd09e2620..000000000000
--- a/arch/mips/powertv/reset.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Definitions from powertv reset.c file
- *
- * Copyright (C) 2009  Cisco Systems, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
- * Author: David VomLehn
- */
-
-#ifndef _POWERTV_POWERTV_RESET_H
-#define _POWERTV_POWERTV_RESET_H
-extern void mips_reboot_setup(void);
-#endif
diff --git a/arch/mips/powertv/time.c b/arch/mips/powertv/time.c
deleted file mode 100644
index f38b0d45eca9..000000000000
--- a/arch/mips/powertv/time.c
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Carsten Langgaard, carstenl@mips.com
- * Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
- * Portions copyright (C) 2009 Cisco Systems, Inc.
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- * Setting up the clock on the MIPS boards.
- */
-
-#include <linux/init.h>
-#include <asm/mach-powertv/interrupts.h>
-#include <asm/time.h>
-
-#include "powertv-clock.h"
-
-unsigned int get_c0_compare_int(void)
-{
-	return irq_mips_timer;
-}
-
-void __init plat_time_init(void)
-{
-	powertv_clocksource_init();
-}
-- 
cgit 


From c1724c89973e28a12a605f66e5151bdb8c354b76 Mon Sep 17 00:00:00 2001
From: Markos Chandras <markos.chandras@imgtec.com>
Date: Thu, 26 Sep 2013 10:35:31 +0100
Subject: MIPS: Remove bogus BUG_ON()

Checking for n<0 && n>9 makes no sense because it can never
be true. Moreover, we can have up to 64 vectored interrupts
so BUG_ON(n>9) was wrong anyway.

Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Acked-by: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/5909/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/traps.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 524841f02803..f2ae9cb57ff0 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1554,7 +1554,6 @@ static void *set_vi_srs_handler(int n, vi_handler_t addr, int srs)
 	unsigned char *b;
 
 	BUG_ON(!cpu_has_veic && !cpu_has_vint);
-	BUG_ON((n < 0) && (n > 9));
 
 	if (addr == NULL) {
 		handler = (unsigned long) do_default_vi;
-- 
cgit 


From 7b784c634b4147345b46251884be6be4bd45fd43 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Fri, 27 Sep 2013 19:07:18 +0200
Subject: MIPS: cacheops.h: Increase indentation by one tab.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/include/asm/cacheops.h | 86 ++++++++++++++++++++--------------------
 1 file changed, 43 insertions(+), 43 deletions(-)

diff --git a/arch/mips/include/asm/cacheops.h b/arch/mips/include/asm/cacheops.h
index 68f37e3eccc7..0644c985d153 100644
--- a/arch/mips/include/asm/cacheops.h
+++ b/arch/mips/include/asm/cacheops.h
@@ -14,56 +14,56 @@
 /*
  * Cache Operations available on all MIPS processors with R4000-style caches
  */
-#define Index_Invalidate_I	0x00
-#define Index_Writeback_Inv_D	0x01
-#define Index_Load_Tag_I	0x04
-#define Index_Load_Tag_D	0x05
-#define Index_Store_Tag_I	0x08
-#define Index_Store_Tag_D	0x09
+#define Index_Invalidate_I		0x00
+#define Index_Writeback_Inv_D		0x01
+#define Index_Load_Tag_I		0x04
+#define Index_Load_Tag_D		0x05
+#define Index_Store_Tag_I		0x08
+#define Index_Store_Tag_D		0x09
 #if defined(CONFIG_CPU_LOONGSON2)
-#define Hit_Invalidate_I	0x00
+#define Hit_Invalidate_I		0x00
 #else
-#define Hit_Invalidate_I	0x10
+#define Hit_Invalidate_I		0x10
 #endif
-#define Hit_Invalidate_D	0x11
-#define Hit_Writeback_Inv_D	0x15
+#define Hit_Invalidate_D		0x11
+#define Hit_Writeback_Inv_D		0x15
 
 /*
  * R4000-specific cacheops
  */
-#define Create_Dirty_Excl_D	0x0d
-#define Fill			0x14
-#define Hit_Writeback_I		0x18
-#define Hit_Writeback_D		0x19
+#define Create_Dirty_Excl_D		0x0d
+#define Fill				0x14
+#define Hit_Writeback_I			0x18
+#define Hit_Writeback_D			0x19
 
 /*
  * R4000SC and R4400SC-specific cacheops
  */
-#define Index_Invalidate_SI	0x02
-#define Index_Writeback_Inv_SD	0x03
-#define Index_Load_Tag_SI	0x06
-#define Index_Load_Tag_SD	0x07
-#define Index_Store_Tag_SI	0x0A
-#define Index_Store_Tag_SD	0x0B
-#define Create_Dirty_Excl_SD	0x0f
-#define Hit_Invalidate_SI	0x12
-#define Hit_Invalidate_SD	0x13
-#define Hit_Writeback_Inv_SD	0x17
-#define Hit_Writeback_SD	0x1b
-#define Hit_Set_Virtual_SI	0x1e
-#define Hit_Set_Virtual_SD	0x1f
+#define Index_Invalidate_SI		0x02
+#define Index_Writeback_Inv_SD		0x03
+#define Index_Load_Tag_SI		0x06
+#define Index_Load_Tag_SD		0x07
+#define Index_Store_Tag_SI		0x0A
+#define Index_Store_Tag_SD		0x0B
+#define Create_Dirty_Excl_SD		0x0f
+#define Hit_Invalidate_SI		0x12
+#define Hit_Invalidate_SD		0x13
+#define Hit_Writeback_Inv_SD		0x17
+#define Hit_Writeback_SD		0x1b
+#define Hit_Set_Virtual_SI		0x1e
+#define Hit_Set_Virtual_SD		0x1f
 
 /*
  * R5000-specific cacheops
  */
-#define R5K_Page_Invalidate_S	0x17
+#define R5K_Page_Invalidate_S		0x17
 
 /*
  * RM7000-specific cacheops
  */
-#define Page_Invalidate_T	0x16
-#define Index_Store_Tag_T	0x0a
-#define Index_Load_Tag_T	0x06
+#define Page_Invalidate_T		0x16
+#define Index_Store_Tag_T		0x0a
+#define Index_Load_Tag_T		0x06
 
 /*
  * R10000-specific cacheops
@@ -71,17 +71,17 @@
  * Cacheops 0x02, 0x06, 0x0a, 0x0c-0x0e, 0x16, 0x1a and 0x1e are unused.
  * Most of the _S cacheops are identical to the R4000SC _SD cacheops.
  */
-#define Index_Writeback_Inv_S	0x03
-#define Index_Load_Tag_S	0x07
-#define Index_Store_Tag_S	0x0B
-#define Hit_Invalidate_S	0x13
-#define Cache_Barrier		0x14
-#define Hit_Writeback_Inv_S	0x17
-#define Index_Load_Data_I	0x18
-#define Index_Load_Data_D	0x19
-#define Index_Load_Data_S	0x1b
-#define Index_Store_Data_I	0x1c
-#define Index_Store_Data_D	0x1d
-#define Index_Store_Data_S	0x1f
+#define Index_Writeback_Inv_S		0x03
+#define Index_Load_Tag_S		0x07
+#define Index_Store_Tag_S		0x0B
+#define Hit_Invalidate_S		0x13
+#define Cache_Barrier			0x14
+#define Hit_Writeback_Inv_S		0x17
+#define Index_Load_Data_I		0x18
+#define Index_Load_Data_D		0x19
+#define Index_Load_Data_S		0x1b
+#define Index_Store_Data_I		0x1c
+#define Index_Store_Data_D		0x1d
+#define Index_Store_Data_S		0x1f
 
 #endif	/* __ASM_CACHEOPS_H */
-- 
cgit 


From 14bd8c082016cd1f67fdfd702e4cf6367869a712 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Wed, 25 Sep 2013 18:21:26 +0200
Subject: MIPS: Loongson: Get rid of Loongson 2 #ifdefery all over arch/mips.

It was ugly.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/include/asm/cacheops.h |   9 ++-
 arch/mips/include/asm/r4kcache.h |  41 +++++++---
 arch/mips/mm/c-r4k.c             |  52 +++++++-----
 arch/mips/mm/tlb-r4k.c           |  37 +++++----
 arch/mips/mm/tlbex.c             | 169 ++++++++++++++++++++-------------------
 5 files changed, 174 insertions(+), 134 deletions(-)

diff --git a/arch/mips/include/asm/cacheops.h b/arch/mips/include/asm/cacheops.h
index 0644c985d153..c75025f27c20 100644
--- a/arch/mips/include/asm/cacheops.h
+++ b/arch/mips/include/asm/cacheops.h
@@ -20,11 +20,7 @@
 #define Index_Load_Tag_D		0x05
 #define Index_Store_Tag_I		0x08
 #define Index_Store_Tag_D		0x09
-#if defined(CONFIG_CPU_LOONGSON2)
-#define Hit_Invalidate_I		0x00
-#else
 #define Hit_Invalidate_I		0x10
-#endif
 #define Hit_Invalidate_D		0x11
 #define Hit_Writeback_Inv_D		0x15
 
@@ -84,4 +80,9 @@
 #define Index_Store_Data_D		0x1d
 #define Index_Store_Data_S		0x1f
 
+/*
+ * Loongson2-specific cacheops
+ */
+#define Hit_Invalidate_I_Loongson23	0x00
+
 #endif	/* __ASM_CACHEOPS_H */
diff --git a/arch/mips/include/asm/r4kcache.h b/arch/mips/include/asm/r4kcache.h
index a0b2650516ac..34d1a1917125 100644
--- a/arch/mips/include/asm/r4kcache.h
+++ b/arch/mips/include/asm/r4kcache.h
@@ -15,6 +15,7 @@
 #include <asm/asm.h>
 #include <asm/cacheops.h>
 #include <asm/cpu-features.h>
+#include <asm/cpu-type.h>
 #include <asm/mipsmtregs.h>
 
 /*
@@ -162,7 +163,15 @@ static inline void flush_scache_line_indexed(unsigned long addr)
 static inline void flush_icache_line(unsigned long addr)
 {
 	__iflush_prologue
-	cache_op(Hit_Invalidate_I, addr);
+	switch (boot_cpu_type()) {
+	case CPU_LOONGSON2:
+		cache_op(Hit_Invalidate_I_Loongson23, addr);
+		break;
+
+	default:
+		cache_op(Hit_Invalidate_I, addr);
+		break;
+	}
 	__iflush_epilogue
 }
 
@@ -208,7 +217,15 @@ static inline void flush_scache_line(unsigned long addr)
  */
 static inline void protected_flush_icache_line(unsigned long addr)
 {
-	protected_cache_op(Hit_Invalidate_I, addr);
+	switch (boot_cpu_type()) {
+	case CPU_LOONGSON2:
+		protected_cache_op(Hit_Invalidate_I_Loongson23, addr);
+		break;
+
+	default:
+		protected_cache_op(Hit_Invalidate_I, addr);
+		break;
+	}
 }
 
 /*
@@ -412,8 +429,8 @@ __BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 64
 __BUILD_BLAST_CACHE(inv_s, scache, Index_Writeback_Inv_SD, Hit_Invalidate_SD, 128)
 
 /* build blast_xxx_range, protected_blast_xxx_range */
-#define __BUILD_BLAST_CACHE_RANGE(pfx, desc, hitop, prot) \
-static inline void prot##blast_##pfx##cache##_range(unsigned long start, \
+#define __BUILD_BLAST_CACHE_RANGE(pfx, desc, hitop, prot, extra)	\
+static inline void prot##extra##blast_##pfx##cache##_range(unsigned long start, \
 						    unsigned long end)	\
 {									\
 	unsigned long lsize = cpu_##desc##_line_size();			\
@@ -432,13 +449,15 @@ static inline void prot##blast_##pfx##cache##_range(unsigned long start, \
 	__##pfx##flush_epilogue						\
 }
 
-__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, protected_)
-__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, protected_)
-__BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I, protected_)
-__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, )
-__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, )
+__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, protected_, )
+__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, protected_, )
+__BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I, protected_, )
+__BUILD_BLAST_CACHE_RANGE(i, icache, Hit_Invalidate_I_Loongson23, \
+	protected_, loongson23_)
+__BUILD_BLAST_CACHE_RANGE(d, dcache, Hit_Writeback_Inv_D, , )
+__BUILD_BLAST_CACHE_RANGE(s, scache, Hit_Writeback_Inv_SD, , )
 /* blast_inv_dcache_range */
-__BUILD_BLAST_CACHE_RANGE(inv_d, dcache, Hit_Invalidate_D, )
-__BUILD_BLAST_CACHE_RANGE(inv_s, scache, Hit_Invalidate_SD, )
+__BUILD_BLAST_CACHE_RANGE(inv_d, dcache, Hit_Invalidate_D, , )
+__BUILD_BLAST_CACHE_RANGE(inv_s, scache, Hit_Invalidate_SD, , )
 
 #endif /* _ASM_R4KCACHE_H */
diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c
index bc6f96fcb529..62ffd20ea869 100644
--- a/arch/mips/mm/c-r4k.c
+++ b/arch/mips/mm/c-r4k.c
@@ -346,14 +346,8 @@ static void r4k_blast_scache_setup(void)
 
 static inline void local_r4k___flush_cache_all(void * args)
 {
-#if defined(CONFIG_CPU_LOONGSON2)
-	r4k_blast_scache();
-	return;
-#endif
-	r4k_blast_dcache();
-	r4k_blast_icache();
-
 	switch (current_cpu_type()) {
+	case CPU_LOONGSON2:
 	case CPU_R4000SC:
 	case CPU_R4000MC:
 	case CPU_R4400SC:
@@ -361,7 +355,18 @@ static inline void local_r4k___flush_cache_all(void * args)
 	case CPU_R10000:
 	case CPU_R12000:
 	case CPU_R14000:
+		/*
+		 * These caches are inclusive caches, that is, if something
+		 * is not cached in the S-cache, we know it also won't be
+		 * in one of the primary caches.
+		 */
 		r4k_blast_scache();
+		break;
+
+	default:
+		r4k_blast_dcache();
+		r4k_blast_icache();
+		break;
 	}
 }
 
@@ -572,8 +577,17 @@ static inline void local_r4k_flush_icache_range(unsigned long start, unsigned lo
 
 	if (end - start > icache_size)
 		r4k_blast_icache();
-	else
-		protected_blast_icache_range(start, end);
+	else {
+		switch (boot_cpu_type()) {
+		case CPU_LOONGSON2:
+			protected_blast_icache_range(start, end);
+			break;
+
+		default:
+			protected_loongson23_blast_icache_range(start, end);
+			break;
+		}
+	}
 }
 
 static inline void local_r4k_flush_icache_range_ipi(void *args)
@@ -1109,15 +1123,14 @@ static void probe_pcache(void)
 	case CPU_ALCHEMY:
 		c->icache.flags |= MIPS_CACHE_IC_F_DC;
 		break;
-	}
 
-#ifdef	CONFIG_CPU_LOONGSON2
-	/*
-	 * LOONGSON2 has 4 way icache, but when using indexed cache op,
-	 * one op will act on all 4 ways
-	 */
-	c->icache.ways = 1;
-#endif
+	case CPU_LOONGSON2:
+		/*
+		 * LOONGSON2 has 4 way icache, but when using indexed cache op,
+		 * one op will act on all 4 ways
+		 */
+		c->icache.ways = 1;
+	}
 
 	printk("Primary instruction cache %ldkB, %s, %s, linesize %d bytes.\n",
 	       icache_size >> 10,
@@ -1193,7 +1206,6 @@ static int probe_scache(void)
 	return 1;
 }
 
-#if defined(CONFIG_CPU_LOONGSON2)
 static void __init loongson2_sc_init(void)
 {
 	struct cpuinfo_mips *c = &current_cpu_data;
@@ -1209,7 +1221,6 @@ static void __init loongson2_sc_init(void)
 
 	c->options |= MIPS_CPU_INCLUSIVE_CACHES;
 }
-#endif
 
 extern int r5k_sc_init(void);
 extern int rm7k_sc_init(void);
@@ -1259,11 +1270,10 @@ static void setup_scache(void)
 #endif
 		return;
 
-#if defined(CONFIG_CPU_LOONGSON2)
 	case CPU_LOONGSON2:
 		loongson2_sc_init();
 		return;
-#endif
+
 	case CPU_XLP:
 		/* don't need to worry about L2, fully coherent */
 		return;
diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c
index bb3a5f643e97..da3b0b9c9eae 100644
--- a/arch/mips/mm/tlb-r4k.c
+++ b/arch/mips/mm/tlb-r4k.c
@@ -52,21 +52,26 @@ extern void build_tlb_refill_handler(void);
 
 #endif /* CONFIG_MIPS_MT_SMTC */
 
-#if defined(CONFIG_CPU_LOONGSON2)
 /*
  * LOONGSON2 has a 4 entry itlb which is a subset of dtlb,
  * unfortrunately, itlb is not totally transparent to software.
  */
-#define FLUSH_ITLB write_c0_diag(4);
-
-#define FLUSH_ITLB_VM(vma) { if ((vma)->vm_flags & VM_EXEC)  write_c0_diag(4); }
-
-#else
-
-#define FLUSH_ITLB
-#define FLUSH_ITLB_VM(vma)
+static inline void flush_itlb(void)
+{
+	switch (current_cpu_type()) {
+	case CPU_LOONGSON2:
+		write_c0_diag(4);
+		break;
+	default:
+		break;
+	}
+}
 
-#endif
+static inline void flush_itlb_vm(struct vm_area_struct *vma)
+{
+	if (vma->vm_flags & VM_EXEC)
+		flush_itlb();
+}
 
 void local_flush_tlb_all(void)
 {
@@ -93,7 +98,7 @@ void local_flush_tlb_all(void)
 	}
 	tlbw_use_hazard();
 	write_c0_entryhi(old_ctx);
-	FLUSH_ITLB;
+	flush_itlb();
 	EXIT_CRITICAL(flags);
 }
 EXPORT_SYMBOL(local_flush_tlb_all);
@@ -155,7 +160,7 @@ void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
 		} else {
 			drop_mmu_context(mm, cpu);
 		}
-		FLUSH_ITLB;
+		flush_itlb();
 		EXIT_CRITICAL(flags);
 	}
 }
@@ -197,7 +202,7 @@ void local_flush_tlb_kernel_range(unsigned long start, unsigned long end)
 	} else {
 		local_flush_tlb_all();
 	}
-	FLUSH_ITLB;
+	flush_itlb();
 	EXIT_CRITICAL(flags);
 }
 
@@ -230,7 +235,7 @@ void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
 
 	finish:
 		write_c0_entryhi(oldpid);
-		FLUSH_ITLB_VM(vma);
+		flush_itlb_vm(vma);
 		EXIT_CRITICAL(flags);
 	}
 }
@@ -262,7 +267,7 @@ void local_flush_tlb_one(unsigned long page)
 		tlbw_use_hazard();
 	}
 	write_c0_entryhi(oldpid);
-	FLUSH_ITLB;
+	flush_itlb();
 	EXIT_CRITICAL(flags);
 }
 
@@ -335,7 +340,7 @@ void __update_tlb(struct vm_area_struct * vma, unsigned long address, pte_t pte)
 			tlb_write_indexed();
 	}
 	tlbw_use_hazard();
-	FLUSH_ITLB_VM(vma);
+	flush_itlb_vm(vma);
 	EXIT_CRITICAL(flags);
 }
 
diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c
index fffa7fe319a0..183f2b583e4d 100644
--- a/arch/mips/mm/tlbex.c
+++ b/arch/mips/mm/tlbex.c
@@ -1311,95 +1311,100 @@ static void build_r4000_tlb_refill_handler(void)
 	 * need three, with the second nop'ed and the third being
 	 * unused.
 	 */
-	/* Loongson2 ebase is different than r4k, we have more space */
-#if defined(CONFIG_32BIT) || defined(CONFIG_CPU_LOONGSON2)
-	if ((p - tlb_handler) > 64)
-		panic("TLB refill handler space exceeded");
-#else
-	if (((p - tlb_handler) > (MIPS64_REFILL_INSNS * 2) - 1)
-	    || (((p - tlb_handler) > (MIPS64_REFILL_INSNS * 2) - 3)
-		&& uasm_insn_has_bdelay(relocs,
-					tlb_handler + MIPS64_REFILL_INSNS - 3)))
-		panic("TLB refill handler space exceeded");
-#endif
-
-	/*
-	 * Now fold the handler in the TLB refill handler space.
-	 */
-#if defined(CONFIG_32BIT) || defined(CONFIG_CPU_LOONGSON2)
-	f = final_handler;
-	/* Simplest case, just copy the handler. */
-	uasm_copy_handler(relocs, labels, tlb_handler, p, f);
-	final_len = p - tlb_handler;
-#else /* CONFIG_64BIT */
-	f = final_handler + MIPS64_REFILL_INSNS;
-	if ((p - tlb_handler) <= MIPS64_REFILL_INSNS) {
-		/* Just copy the handler. */
-		uasm_copy_handler(relocs, labels, tlb_handler, p, f);
-		final_len = p - tlb_handler;
-	} else {
-#ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT
-		const enum label_id ls = label_tlb_huge_update;
-#else
-		const enum label_id ls = label_vmalloc;
-#endif
-		u32 *split;
-		int ov = 0;
-		int i;
-
-		for (i = 0; i < ARRAY_SIZE(labels) && labels[i].lab != ls; i++)
-			;
-		BUG_ON(i == ARRAY_SIZE(labels));
-		split = labels[i].addr;
-
-		/*
-		 * See if we have overflown one way or the other.
-		 */
-		if (split > tlb_handler + MIPS64_REFILL_INSNS ||
-		    split < p - MIPS64_REFILL_INSNS)
-			ov = 1;
-
-		if (ov) {
+	switch (boot_cpu_type()) {
+	default:
+		if (sizeof(long) == 4) {
+	case CPU_LOONGSON2:
+		/* Loongson2 ebase is different than r4k, we have more space */
+			if ((p - tlb_handler) > 64)
+				panic("TLB refill handler space exceeded");
 			/*
-			 * Split two instructions before the end.  One
-			 * for the branch and one for the instruction
-			 * in the delay slot.
+			 * Now fold the handler in the TLB refill handler space.
 			 */
-			split = tlb_handler + MIPS64_REFILL_INSNS - 2;
-
+			f = final_handler;
+			/* Simplest case, just copy the handler. */
+			uasm_copy_handler(relocs, labels, tlb_handler, p, f);
+			final_len = p - tlb_handler;
+			break;
+		} else {
+			if (((p - tlb_handler) > (MIPS64_REFILL_INSNS * 2) - 1)
+			    || (((p - tlb_handler) > (MIPS64_REFILL_INSNS * 2) - 3)
+				&& uasm_insn_has_bdelay(relocs,
+							tlb_handler + MIPS64_REFILL_INSNS - 3)))
+				panic("TLB refill handler space exceeded");
 			/*
-			 * If the branch would fall in a delay slot,
-			 * we must back up an additional instruction
-			 * so that it is no longer in a delay slot.
+			 * Now fold the handler in the TLB refill handler space.
 			 */
-			if (uasm_insn_has_bdelay(relocs, split - 1))
-				split--;
-		}
-		/* Copy first part of the handler. */
-		uasm_copy_handler(relocs, labels, tlb_handler, split, f);
-		f += split - tlb_handler;
-
-		if (ov) {
-			/* Insert branch. */
-			uasm_l_split(&l, final_handler);
-			uasm_il_b(&f, &r, label_split);
-			if (uasm_insn_has_bdelay(relocs, split))
-				uasm_i_nop(&f);
-			else {
-				uasm_copy_handler(relocs, labels,
-						  split, split + 1, f);
-				uasm_move_labels(labels, f, f + 1, -1);
-				f++;
-				split++;
+			f = final_handler + MIPS64_REFILL_INSNS;
+			if ((p - tlb_handler) <= MIPS64_REFILL_INSNS) {
+				/* Just copy the handler. */
+				uasm_copy_handler(relocs, labels, tlb_handler, p, f);
+				final_len = p - tlb_handler;
+			} else {
+#ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT
+				const enum label_id ls = label_tlb_huge_update;
+#else
+				const enum label_id ls = label_vmalloc;
+#endif
+				u32 *split;
+				int ov = 0;
+				int i;
+
+				for (i = 0; i < ARRAY_SIZE(labels) && labels[i].lab != ls; i++)
+					;
+				BUG_ON(i == ARRAY_SIZE(labels));
+				split = labels[i].addr;
+
+				/*
+				 * See if we have overflown one way or the other.
+				 */
+				if (split > tlb_handler + MIPS64_REFILL_INSNS ||
+				    split < p - MIPS64_REFILL_INSNS)
+					ov = 1;
+
+				if (ov) {
+					/*
+					 * Split two instructions before the end.  One
+					 * for the branch and one for the instruction
+					 * in the delay slot.
+					 */
+					split = tlb_handler + MIPS64_REFILL_INSNS - 2;
+
+					/*
+					 * If the branch would fall in a delay slot,
+					 * we must back up an additional instruction
+					 * so that it is no longer in a delay slot.
+					 */
+					if (uasm_insn_has_bdelay(relocs, split - 1))
+						split--;
+				}
+				/* Copy first part of the handler. */
+				uasm_copy_handler(relocs, labels, tlb_handler, split, f);
+				f += split - tlb_handler;
+
+				if (ov) {
+					/* Insert branch. */
+					uasm_l_split(&l, final_handler);
+					uasm_il_b(&f, &r, label_split);
+					if (uasm_insn_has_bdelay(relocs, split))
+						uasm_i_nop(&f);
+					else {
+						uasm_copy_handler(relocs, labels,
+								  split, split + 1, f);
+						uasm_move_labels(labels, f, f + 1, -1);
+						f++;
+						split++;
+					}
+				}
+
+				/* Copy the rest of the handler. */
+				uasm_copy_handler(relocs, labels, split, p, final_handler);
+				final_len = (f - (final_handler + MIPS64_REFILL_INSNS)) +
+					    (p - split);
 			}
 		}
-
-		/* Copy the rest of the handler. */
-		uasm_copy_handler(relocs, labels, split, p, final_handler);
-		final_len = (f - (final_handler + MIPS64_REFILL_INSNS)) +
-			    (p - split);
+		break;
 	}
-#endif /* CONFIG_64BIT */
 
 	uasm_resolve_relocs(relocs, labels);
 	pr_debug("Wrote TLB refill handler (%u instructions).\n",
-- 
cgit 


From f7886e87546cc68844e8edb66150aaaeacaf7204 Mon Sep 17 00:00:00 2001
From: "Steven J. Hill" <Steven.Hill@imgtec.com>
Date: Mon, 7 Oct 2013 11:32:54 +0100
Subject: MIPS: Always register R4K clock when selected

Always register the R4K clocksource when CONFIG_CSRC_R4K is selected,
regardless of selected support for other clocksources. The kernel will
select the best clocksource based on their ratings, making it safe to
register R4K unconditionally and use it as a fallback should the
kernel be run on a system where other selected clocksources are
inoperable.

Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6024/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/include/asm/time.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/include/asm/time.h b/arch/mips/include/asm/time.h
index 2d7b9df4542d..24f534a7fbc3 100644
--- a/arch/mips/include/asm/time.h
+++ b/arch/mips/include/asm/time.h
@@ -75,7 +75,7 @@ extern int init_r4k_clocksource(void);
 
 static inline int init_mips_clocksource(void)
 {
-#if defined(CONFIG_CSRC_R4K) && !defined(CONFIG_CSRC_GIC)
+#ifdef CONFIG_CSRC_R4K
 	return init_r4k_clocksource();
 #else
 	return 0;
-- 
cgit 


From 70002f76db5f8ed4ab72f539fc600510e2a98022 Mon Sep 17 00:00:00 2001
From: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Date: Mon, 7 Oct 2013 09:45:04 -0700
Subject: MIPS: Get rid of hard-coded values for Malta PIIX4 fixups

Make the code more readable by using defines.

Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6031/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/include/asm/mips-boards/piix4.h | 23 ++++++++++++++++++++
 arch/mips/pci/fixup-malta.c               | 36 ++++++++++++++++++++-----------
 2 files changed, 46 insertions(+), 13 deletions(-)

diff --git a/arch/mips/include/asm/mips-boards/piix4.h b/arch/mips/include/asm/mips-boards/piix4.h
index a02596cf1abd..06d483131dc4 100644
--- a/arch/mips/include/asm/mips-boards/piix4.h
+++ b/arch/mips/include/asm/mips-boards/piix4.h
@@ -1,6 +1,7 @@
 /*
  * Carsten Langgaard, carstenl@mips.com
  * Copyright (C) 2000 MIPS Technologies, Inc.  All rights reserved.
+ * Copyright (C) 2013 Imagination Technologies Ltd.
  *
  *  This program is free software; you can distribute it and/or modify it
  *  under the terms of the GNU General Public License (Version 2) as
@@ -20,6 +21,28 @@
 #ifndef __ASM_MIPS_BOARDS_PIIX4_H
 #define __ASM_MIPS_BOARDS_PIIX4_H
 
+/* PIRQX Route Control */
+#define PIIX4_FUNC0_PIRQRC			0x60
+#define   PIIX4_FUNC0_PIRQRC_IRQ_ROUTING_DISABLE	(1 << 7)
+#define   PIIX4_FUNC0_PIRQRC_IRQ_ROUTING_MASK		0xf
+#define   PIIX4_FUNC0_PIRQRC_IRQ_ROUTING_MAX		16
+/* Top Of Memory */
+#define PIIX4_FUNC0_TOM				0x69
+#define   PIIX4_FUNC0_TOM_TOP_OF_MEMORY_MASK		0xf0
+/* Deterministic Latency Control */
+#define PIIX4_FUNC0_DLC				0x82
+#define   PIIX4_FUNC0_DLC_USBPR_EN			(1 << 2)
+#define   PIIX4_FUNC0_DLC_PASSIVE_RELEASE_EN		(1 << 1)
+#define   PIIX4_FUNC0_DLC_DELAYED_TRANSACTION_EN	(1 << 0)
+
+/* IDE Timing */
+#define PIIX4_FUNC1_IDETIM_PRIMARY_LO		0x40
+#define PIIX4_FUNC1_IDETIM_PRIMARY_HI		0x41
+#define   PIIX4_FUNC1_IDETIM_PRIMARY_HI_IDE_DECODE_EN	(1 << 7)
+#define PIIX4_FUNC1_IDETIM_SECONDARY_LO		0x42
+#define PIIX4_FUNC1_IDETIM_SECONDARY_HI		0x43
+#define   PIIX4_FUNC1_IDETIM_SECONDARY_HI_IDE_DECODE_EN	(1 << 7)
+
 /************************************************************************
  *  IO register offsets
  ************************************************************************/
diff --git a/arch/mips/pci/fixup-malta.c b/arch/mips/pci/fixup-malta.c
index 07ada7f8441e..df36e2327c54 100644
--- a/arch/mips/pci/fixup-malta.c
+++ b/arch/mips/pci/fixup-malta.c
@@ -1,5 +1,6 @@
 #include <linux/init.h>
 #include <linux/pci.h>
+#include <asm/mips-boards/piix4.h>
 
 /* PCI interrupt pins */
 #define PCIA		1
@@ -53,7 +54,8 @@ int pcibios_plat_dev_init(struct pci_dev *dev)
 static void malta_piix_func0_fixup(struct pci_dev *pdev)
 {
 	unsigned char reg_val;
-	static int piixirqmap[16] = {  /* PIIX PIRQC[A:D] irq mappings */
+	/* PIIX PIRQC[A:D] irq mappings */
+	static int piixirqmap[PIIX4_FUNC0_PIRQRC_IRQ_ROUTING_MAX] = {
 		0,  0,	0,  3,
 		4,  5,	6,  7,
 		0,  9, 10, 11,
@@ -63,11 +65,12 @@ static void malta_piix_func0_fixup(struct pci_dev *pdev)
 
 	/* Interrogate PIIX4 to get PCI IRQ mapping */
 	for (i = 0; i <= 3; i++) {
-		pci_read_config_byte(pdev, 0x60+i, &reg_val);
-		if (reg_val & 0x80)
+		pci_read_config_byte(pdev, PIIX4_FUNC0_PIRQRC+i, &reg_val);
+		if (reg_val & PIIX4_FUNC0_PIRQRC_IRQ_ROUTING_DISABLE)
 			pci_irq[PCIA+i] = 0;	/* Disabled */
 		else
-			pci_irq[PCIA+i] = piixirqmap[reg_val & 15];
+			pci_irq[PCIA+i] = piixirqmap[reg_val &
+				PIIX4_FUNC0_PIRQRC_IRQ_ROUTING_MASK];
 	}
 
 	/* Done by YAMON 2.00 onwards */
@@ -76,8 +79,9 @@ static void malta_piix_func0_fixup(struct pci_dev *pdev)
 		 * Set top of main memory accessible by ISA or DMA
 		 * devices to 16 Mb.
 		 */
-		pci_read_config_byte(pdev, 0x69, &reg_val);
-		pci_write_config_byte(pdev, 0x69, reg_val | 0xf0);
+		pci_read_config_byte(pdev, PIIX4_FUNC0_TOM, &reg_val);
+		pci_write_config_byte(pdev, PIIX4_FUNC0_TOM, reg_val |
+				PIIX4_FUNC0_TOM_TOP_OF_MEMORY_MASK);
 	}
 }
 
@@ -93,10 +97,14 @@ static void malta_piix_func1_fixup(struct pci_dev *pdev)
 		/*
 		 * IDE Decode enable.
 		 */
-		pci_read_config_byte(pdev, 0x41, &reg_val);
-		pci_write_config_byte(pdev, 0x41, reg_val|0x80);
-		pci_read_config_byte(pdev, 0x43, &reg_val);
-		pci_write_config_byte(pdev, 0x43, reg_val|0x80);
+		pci_read_config_byte(pdev, PIIX4_FUNC1_IDETIM_PRIMARY_HI,
+			&reg_val);
+		pci_write_config_byte(pdev, PIIX4_FUNC1_IDETIM_PRIMARY_HI,
+			reg_val|PIIX4_FUNC1_IDETIM_PRIMARY_HI_IDE_DECODE_EN);
+		pci_read_config_byte(pdev, PIIX4_FUNC1_IDETIM_SECONDARY_HI,
+			&reg_val);
+		pci_write_config_byte(pdev, PIIX4_FUNC1_IDETIM_SECONDARY_HI,
+			reg_val|PIIX4_FUNC1_IDETIM_SECONDARY_HI_IDE_DECODE_EN);
 	}
 }
 
@@ -108,10 +116,12 @@ static void quirk_dlcsetup(struct pci_dev *dev)
 {
 	u8 odlc, ndlc;
 
-	(void) pci_read_config_byte(dev, 0x82, &odlc);
+	(void) pci_read_config_byte(dev, PIIX4_FUNC0_DLC, &odlc);
 	/* Enable passive releases and delayed transaction */
-	ndlc = odlc | 7;
-	(void) pci_write_config_byte(dev, 0x82, ndlc);
+	ndlc = odlc | PIIX4_FUNC0_DLC_USBPR_EN |
+		      PIIX4_FUNC0_DLC_PASSIVE_RELEASE_EN |
+		      PIIX4_FUNC0_DLC_DELAYED_TRANSACTION_EN;
+	(void) pci_write_config_byte(dev, PIIX4_FUNC0_DLC, ndlc);
 }
 
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82371AB_0,
-- 
cgit 


From 40b15b28083abc00c9ffb830c07e5ef72a1e53b6 Mon Sep 17 00:00:00 2001
From: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Date: Mon, 7 Oct 2013 09:45:05 -0700
Subject: MIPS: Remove unused defines in piix4.h

The PIIX4_ICTLR* and PIIX4_OCW* defines are not used by any other files.
Remove them.

The only file (other than fixup-malta.c which includes piix4.h in patch #1)
containing "#include <asm/mips-boards/piix4.h>" is
arch/mips/mti-malta/malta-int.c whose first version is actually
"1da177e4c3:arch/mips/mips-boards/malta/malta_int.c". In that version, in
the function get_int(), things in piix4.h are used. But now malta-int.c no
longer needs those stuff.

Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Reviewed-by: James Hogan <james.hogan@imgtec.com>
Reviewed-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6032/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/include/asm/mips-boards/piix4.h | 57 -------------------------------
 arch/mips/mti-malta/malta-int.c           |  1 -
 2 files changed, 58 deletions(-)

diff --git a/arch/mips/include/asm/mips-boards/piix4.h b/arch/mips/include/asm/mips-boards/piix4.h
index 06d483131dc4..e33227998713 100644
--- a/arch/mips/include/asm/mips-boards/piix4.h
+++ b/arch/mips/include/asm/mips-boards/piix4.h
@@ -43,61 +43,4 @@
 #define PIIX4_FUNC1_IDETIM_SECONDARY_HI		0x43
 #define   PIIX4_FUNC1_IDETIM_SECONDARY_HI_IDE_DECODE_EN	(1 << 7)
 
-/************************************************************************
- *  IO register offsets
- ************************************************************************/
-#define PIIX4_ICTLR1_ICW1	0x20
-#define PIIX4_ICTLR1_ICW2	0x21
-#define PIIX4_ICTLR1_ICW3	0x21
-#define PIIX4_ICTLR1_ICW4	0x21
-#define PIIX4_ICTLR2_ICW1	0xa0
-#define PIIX4_ICTLR2_ICW2	0xa1
-#define PIIX4_ICTLR2_ICW3	0xa1
-#define PIIX4_ICTLR2_ICW4	0xa1
-#define PIIX4_ICTLR1_OCW1	0x21
-#define PIIX4_ICTLR1_OCW2	0x20
-#define PIIX4_ICTLR1_OCW3	0x20
-#define PIIX4_ICTLR1_OCW4	0x20
-#define PIIX4_ICTLR2_OCW1	0xa1
-#define PIIX4_ICTLR2_OCW2	0xa0
-#define PIIX4_ICTLR2_OCW3	0xa0
-#define PIIX4_ICTLR2_OCW4	0xa0
-
-
-/************************************************************************
- *  Register encodings.
- ************************************************************************/
-#define PIIX4_OCW2_NSEOI	(0x1 << 5)
-#define PIIX4_OCW2_SEOI		(0x3 << 5)
-#define PIIX4_OCW2_RNSEOI	(0x5 << 5)
-#define PIIX4_OCW2_RAEOIS	(0x4 << 5)
-#define PIIX4_OCW2_RAEOIC	(0x0 << 5)
-#define PIIX4_OCW2_RSEOI	(0x7 << 5)
-#define PIIX4_OCW2_SP		(0x6 << 5)
-#define PIIX4_OCW2_NOP		(0x2 << 5)
-
-#define PIIX4_OCW2_SEL		(0x0 << 3)
-
-#define PIIX4_OCW2_ILS_0	0
-#define PIIX4_OCW2_ILS_1	1
-#define PIIX4_OCW2_ILS_2	2
-#define PIIX4_OCW2_ILS_3	3
-#define PIIX4_OCW2_ILS_4	4
-#define PIIX4_OCW2_ILS_5	5
-#define PIIX4_OCW2_ILS_6	6
-#define PIIX4_OCW2_ILS_7	7
-#define PIIX4_OCW2_ILS_8	0
-#define PIIX4_OCW2_ILS_9	1
-#define PIIX4_OCW2_ILS_10	2
-#define PIIX4_OCW2_ILS_11	3
-#define PIIX4_OCW2_ILS_12	4
-#define PIIX4_OCW2_ILS_13	5
-#define PIIX4_OCW2_ILS_14	6
-#define PIIX4_OCW2_ILS_15	7
-
-#define PIIX4_OCW3_SEL		(0x1 << 3)
-
-#define PIIX4_OCW3_IRR		0x2
-#define PIIX4_OCW3_ISR		0x3
-
 #endif /* __ASM_MIPS_BOARDS_PIIX4_H */
diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c
index c69da3734699..be4a1092fd53 100644
--- a/arch/mips/mti-malta/malta-int.c
+++ b/arch/mips/mti-malta/malta-int.c
@@ -37,7 +37,6 @@
 #include <asm/irq_regs.h>
 #include <asm/mips-boards/malta.h>
 #include <asm/mips-boards/maltaint.h>
-#include <asm/mips-boards/piix4.h>
 #include <asm/gt64120.h>
 #include <asm/mips-boards/generic.h>
 #include <asm/mips-boards/msc01_pci.h>
-- 
cgit 


From d9f897c912b4108076afb00036a139e3b8144a64 Mon Sep 17 00:00:00 2001
From: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Date: Mon, 7 Oct 2013 10:43:32 +0100
Subject: MIPS: kernel: cpu-probe: Report CPU id during probe

Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6023/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/cpu-probe.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 040b83de00ac..c814287bdf5d 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -1099,8 +1099,8 @@ void cpu_report(void)
 {
 	struct cpuinfo_mips *c = &current_cpu_data;
 
-	printk(KERN_INFO "CPU revision is: %08x (%s)\n",
-	       c->processor_id, cpu_name_string());
+	pr_info("CPU%d revision is: %08x (%s)\n",
+		smp_processor_id(), c->processor_id, cpu_name_string());
 	if (c->options & MIPS_CPU_FPU)
 		printk(KERN_INFO "FPU revision is: %08x\n", c->fpu_id);
 }
-- 
cgit 


From 83e4da1ed45441c3aadc39ac47d33895ab23c841 Mon Sep 17 00:00:00 2001
From: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Date: Tue, 8 Oct 2013 12:39:31 +0100
Subject: MIPS: Print correct PC in trace dump after NMI exception

An NMI exception delivered from YAMON delivers the PC in ErrorPC
instead of EPC. It's also necessary to clear the Status.BEV
bit for the page fault exception handler to work properly.

[ralf@linux-mips: Let the assembler do the loading of the mask value rather
than the convoluted explicit %hi/%lo manual relocation sequence from the
original patch.]

Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6035/
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Markos Chandras <markos.chandras@imgtec.com>
Patchwork: https://patchwork.linux-mips.org/patch/6084/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/genex.S | 14 +++++++++++---
 arch/mips/kernel/traps.c | 13 +++++++++++--
 2 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/arch/mips/kernel/genex.S b/arch/mips/kernel/genex.S
index 31fa856829cb..47d7583cd67f 100644
--- a/arch/mips/kernel/genex.S
+++ b/arch/mips/kernel/genex.S
@@ -374,12 +374,20 @@ NESTED(except_vec_nmi, 0, sp)
 NESTED(nmi_handler, PT_SIZE, sp)
 	.set	push
 	.set	noat
+	/*
+	 * Clear ERL - restore segment mapping
+	 * Clear BEV - required for page fault exception handler to work
+	 */
+	mfc0	k0, CP0_STATUS
+	ori     k0, k0, ST0_EXL
+	li	k1, ~(ST0_BEV | ST0_ERL)
+	and     k0, k0, k1
+	mtc0    k0, CP0_STATUS
+	_ehb
 	SAVE_ALL
 	move	a0, sp
 	jal	nmi_exception_handler
-	RESTORE_ALL
-	.set	mips3
-	eret
+	/* nmi_exception_handler never returns */
 	.set	pop
 	END(nmi_handler)
 
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index f2ae9cb57ff0..a17b6efb8bfe 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -330,6 +330,7 @@ void show_regs(struct pt_regs *regs)
 void show_registers(struct pt_regs *regs)
 {
 	const int field = 2 * sizeof(unsigned long);
+	mm_segment_t old_fs = get_fs();
 
 	__show_regs(regs);
 	print_modules();
@@ -344,9 +345,13 @@ void show_registers(struct pt_regs *regs)
 			printk("*HwTLS: %0*lx\n", field, tls);
 	}
 
+	if (!user_mode(regs))
+		/* Necessary for getting the correct stack content */
+		set_fs(KERNEL_DS);
 	show_stacktrace(current, regs);
 	show_code((unsigned int __user *) regs->cp0_epc);
 	printk("\n");
+	set_fs(old_fs);
 }
 
 static int regs_to_trapnr(struct pt_regs *regs)
@@ -1488,10 +1493,14 @@ int register_nmi_notifier(struct notifier_block *nb)
 
 void __noreturn nmi_exception_handler(struct pt_regs *regs)
 {
+	char str[100];
+
 	raw_notifier_call_chain(&nmi_chain, 0, regs);
 	bust_spinlocks(1);
-	printk("NMI taken!!!!\n");
-	die("NMI", regs);
+	snprintf(str, 100, "CPU%d NMI taken, CP0_EPC=%lx\n",
+		 smp_processor_id(), regs->cp0_epc);
+	regs->cp0_epc = read_c0_errorepc();
+	die(str, regs);
 }
 
 #define VECTORSPACING 0x100	/* for EI/VI mode */
-- 
cgit 


From dc73e4c1b6df2795830a398192aaba7fb3c5cbb7 Mon Sep 17 00:00:00 2001
From: Ralf Baechle <ralf@linux-mips.org>
Date: Wed, 9 Oct 2013 08:54:15 +0200
Subject: MIPS: traps: Reformat notify_die invocations to 80 columns.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/kernel/traps.c | 24 ++++++++++++++----------
 1 file changed, 14 insertions(+), 10 deletions(-)

diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index a17b6efb8bfe..f9c8746be8d6 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -371,7 +371,8 @@ void __noreturn die(const char *str, struct pt_regs *regs)
 
 	oops_enter();
 
-	if (notify_die(DIE_OOPS, str, regs, 0, regs_to_trapnr(regs), SIGSEGV) == NOTIFY_STOP)
+	if (notify_die(DIE_OOPS, str, regs, 0, regs_to_trapnr(regs),
+		       SIGSEGV) == NOTIFY_STOP)
 		sig = 0;
 
 	console_verbose();
@@ -462,8 +463,8 @@ asmlinkage void do_be(struct pt_regs *regs)
 	printk(KERN_ALERT "%s bus error, epc == %0*lx, ra == %0*lx\n",
 	       data ? "Data" : "Instruction",
 	       field, regs->cp0_epc, field, regs->regs[31]);
-	if (notify_die(DIE_OOPS, "bus error", regs, 0, regs_to_trapnr(regs), SIGBUS)
-	    == NOTIFY_STOP)
+	if (notify_die(DIE_OOPS, "bus error", regs, 0, regs_to_trapnr(regs),
+		       SIGBUS) == NOTIFY_STOP)
 		goto out;
 
 	die_if_kernel("Oops", regs);
@@ -732,8 +733,8 @@ asmlinkage void do_fpe(struct pt_regs *regs, unsigned long fcr31)
 	siginfo_t info = {0};
 
 	prev_state = exception_enter();
-	if (notify_die(DIE_FP, "FP exception", regs, 0, regs_to_trapnr(regs), SIGFPE)
-	    == NOTIFY_STOP)
+	if (notify_die(DIE_FP, "FP exception", regs, 0, regs_to_trapnr(regs),
+		       SIGFPE) == NOTIFY_STOP)
 		goto out;
 	die_if_kernel("FP exception in kernel code", regs);
 
@@ -803,7 +804,8 @@ static void do_trap_or_bp(struct pt_regs *regs, unsigned int code,
 		return;
 #endif /* CONFIG_KGDB_LOW_LEVEL_TRAP */
 
-	if (notify_die(DIE_TRAP, str, regs, code, regs_to_trapnr(regs), SIGTRAP) == NOTIFY_STOP)
+	if (notify_die(DIE_TRAP, str, regs, code, regs_to_trapnr(regs),
+		       SIGTRAP) == NOTIFY_STOP)
 		return;
 
 	/*
@@ -897,12 +899,14 @@ asmlinkage void do_bp(struct pt_regs *regs)
 	 */
 	switch (bcode) {
 	case BRK_KPROBE_BP:
-		if (notify_die(DIE_BREAK, "debug", regs, bcode, regs_to_trapnr(regs), SIGTRAP) == NOTIFY_STOP)
+		if (notify_die(DIE_BREAK, "debug", regs, bcode,
+			       regs_to_trapnr(regs), SIGTRAP) == NOTIFY_STOP)
 			goto out;
 		else
 			break;
 	case BRK_KPROBE_SSTEPBP:
-		if (notify_die(DIE_SSTEPBP, "single_step", regs, bcode, regs_to_trapnr(regs), SIGTRAP) == NOTIFY_STOP)
+		if (notify_die(DIE_SSTEPBP, "single_step", regs, bcode,
+			       regs_to_trapnr(regs), SIGTRAP) == NOTIFY_STOP)
 			goto out;
 		else
 			break;
@@ -966,8 +970,8 @@ asmlinkage void do_ri(struct pt_regs *regs)
 	int status = -1;
 
 	prev_state = exception_enter();
-	if (notify_die(DIE_RI, "RI Fault", regs, 0, regs_to_trapnr(regs), SIGILL)
-	    == NOTIFY_STOP)
+	if (notify_die(DIE_RI, "RI Fault", regs, 0, regs_to_trapnr(regs),
+		       SIGILL) == NOTIFY_STOP)
 		goto out;
 
 	die_if_kernel("Reserved instruction in kernel code", regs);
-- 
cgit 


From 04c7d924eb676bd768765a598cea0f27fa1ca24b Mon Sep 17 00:00:00 2001
From: Suman Anna <s-anna@ti.com>
Date: Thu, 10 Oct 2013 16:15:33 -0500
Subject: ARM: dts: OMAP4: Add hwspinlock node

Add the hwspinlock device tree node for OMAP4 family
of SoCs.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap4.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 0d8fdbad43fa..01caa89a8df1 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -253,6 +253,12 @@
 			clock-frequency = <48000000>;
 		};
 
+		hwspinlock: spinlock@4a0f6000 {
+			compatible = "ti,omap4-hwspinlock";
+			reg = <0x4a0f6000 0x1000>;
+			ti,hwmods = "spinlock";
+		};
+
 		i2c1: i2c@48070000 {
 			compatible = "ti,omap4-i2c";
 			reg = <0x48070000 0x100>;
-- 
cgit 


From fe0e09e48cc3566b240a6b79e7e9cd54f7f48755 Mon Sep 17 00:00:00 2001
From: Suman Anna <s-anna@ti.com>
Date: Thu, 10 Oct 2013 16:15:34 -0500
Subject: ARM: dts: OMAP5: Add hwspinlock node

Add the hwspinlock device tree node for OMAP5 SoCs.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap5.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi
index 154d92fae1d5..a791846421d1 100644
--- a/arch/arm/boot/dts/omap5.dtsi
+++ b/arch/arm/boot/dts/omap5.dtsi
@@ -287,6 +287,12 @@
 			ti,hwmods = "i2c5";
 		};
 
+		hwspinlock: spinlock@4a0f6000 {
+			compatible = "ti,omap4-hwspinlock";
+			reg = <0x4a0f6000 0x1000>;
+			ti,hwmods = "spinlock";
+		};
+
 		mcspi1: spi@48098000 {
 			compatible = "ti,omap4-mcspi";
 			reg = <0x48098000 0x200>;
-- 
cgit 


From d4cbe80db468dcfaa058f9f00a332784e5dff316 Mon Sep 17 00:00:00 2001
From: Suman Anna <s-anna@ti.com>
Date: Thu, 10 Oct 2013 16:15:35 -0500
Subject: ARM: dts: AM33XX: Add hwspinlock node

Add the hwspinlock device tree node for AM33xx family
of SoCs.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/am33xx.dtsi | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 0ca13ad92fa6..9ae258ebe1eb 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -288,6 +288,12 @@
 			status = "disabled";
 		};
 
+		hwspinlock: spinlock@480ca000 {
+			compatible = "ti,omap4-hwspinlock";
+			reg = <0x480ca000 0x1000>;
+			ti,hwmods = "spinlock";
+		};
+
 		wdt2: wdt@44e35000 {
 			compatible = "ti,omap3-wdt";
 			ti,hwmods = "wd_timer2";
-- 
cgit 


From ed845d6b78bf32b396f7f1278eed0b87446934b1 Mon Sep 17 00:00:00 2001
From: Lokesh Vutla <lokeshvutla@ti.com>
Date: Thu, 29 Aug 2013 18:22:09 +0530
Subject: ARM: dts: AM33xx: Add RNG node

Add the AM33xx RNG module's device tree data.
Also add Documentation file describing the data
for the RNG module.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 .../devicetree/bindings/hwrng/omap_rng.txt         | 22 ++++++++++++++++++++++
 arch/arm/boot/dts/am33xx.dtsi                      |  7 +++++++
 2 files changed, 29 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwrng/omap_rng.txt

diff --git a/Documentation/devicetree/bindings/hwrng/omap_rng.txt b/Documentation/devicetree/bindings/hwrng/omap_rng.txt
new file mode 100644
index 000000000000..6a62acd86953
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwrng/omap_rng.txt
@@ -0,0 +1,22 @@
+OMAP SoC HWRNG Module
+
+Required properties:
+
+- compatible : Should contain entries for this and backward compatible
+  RNG versions:
+  - "ti,omap2-rng" for OMAP2.
+  - "ti,omap4-rng" for OMAP4, OMAP5 and AM33XX.
+  Note that these two versions are incompatible.
+- ti,hwmods: Name of the hwmod associated with the RNG module
+- reg : Offset and length of the register set for the module
+- interrupts : the interrupt number for the RNG module.
+		Only used for "ti,omap4-rng".
+
+Example:
+/* AM335x */
+rng: rng@48310000 {
+	compatible = "ti,omap4-rng";
+	ti,hwmods = "rng";
+	reg = <0x48310000 0x2000>;
+	interrupts = <111>;
+};
diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 9ae258ebe1eb..fcb9c8e42ab7 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -779,5 +779,12 @@
 				<&edma 11>;
 			dma-names = "tx", "rx";
 		};
+
+		rng: rng@48310000 {
+			compatible = "ti,omap4-rng";
+			ti,hwmods = "rng";
+			reg = <0x48310000 0x2000>;
+			interrupts = <111>;
+		};
 	};
 };
-- 
cgit 


From d549c76bccc5405b0c8f5412730f043daab8d29e Mon Sep 17 00:00:00 2001
From: Rafał Miłecki <zajec5@gmail.com>
Date: Mon, 28 Oct 2013 14:40:29 +0100
Subject: bgmac: separate RX descriptor setup code into a new function
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This cleans code a bit and will be useful when allocating buffers in
other places (like RX path, to avoid skb_copy_from_linear_data_offset).

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bgmac.c | 41 +++++++++++++++++++----------------
 1 file changed, 22 insertions(+), 19 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index 7eca5a174733..4f9beed54506 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -277,6 +277,26 @@ static int bgmac_dma_rx_skb_for_slot(struct bgmac *bgmac,
 	return 0;
 }
 
+static void bgmac_dma_rx_setup_desc(struct bgmac *bgmac,
+				    struct bgmac_dma_ring *ring, int desc_idx)
+{
+	struct bgmac_dma_desc *dma_desc = ring->cpu_base + desc_idx;
+	u32 ctl0 = 0, ctl1 = 0;
+
+	if (desc_idx == ring->num_slots - 1)
+		ctl0 |= BGMAC_DESC_CTL0_EOT;
+	ctl1 |= BGMAC_RX_BUF_SIZE & BGMAC_DESC_CTL1_LEN;
+	/* Is there any BGMAC device that requires extension? */
+	/* ctl1 |= (addrext << B43_DMA64_DCTL1_ADDREXT_SHIFT) &
+	 * B43_DMA64_DCTL1_ADDREXT_MASK;
+	 */
+
+	dma_desc->addr_low = cpu_to_le32(lower_32_bits(ring->slots[desc_idx].dma_addr));
+	dma_desc->addr_high = cpu_to_le32(upper_32_bits(ring->slots[desc_idx].dma_addr));
+	dma_desc->ctl0 = cpu_to_le32(ctl0);
+	dma_desc->ctl1 = cpu_to_le32(ctl1);
+}
+
 static int bgmac_dma_rx_read(struct bgmac *bgmac, struct bgmac_dma_ring *ring,
 			     int weight)
 {
@@ -503,8 +523,6 @@ err_dma_free:
 static void bgmac_dma_init(struct bgmac *bgmac)
 {
 	struct bgmac_dma_ring *ring;
-	struct bgmac_dma_desc *dma_desc;
-	u32 ctl0, ctl1;
 	int i;
 
 	for (i = 0; i < BGMAC_MAX_TX_RINGS; i++) {
@@ -537,23 +555,8 @@ static void bgmac_dma_init(struct bgmac *bgmac)
 		if (ring->unaligned)
 			bgmac_dma_rx_enable(bgmac, ring);
 
-		for (j = 0, dma_desc = ring->cpu_base; j < ring->num_slots;
-		     j++, dma_desc++) {
-			ctl0 = ctl1 = 0;
-
-			if (j == ring->num_slots - 1)
-				ctl0 |= BGMAC_DESC_CTL0_EOT;
-			ctl1 |= BGMAC_RX_BUF_SIZE & BGMAC_DESC_CTL1_LEN;
-			/* Is there any BGMAC device that requires extension? */
-			/* ctl1 |= (addrext << B43_DMA64_DCTL1_ADDREXT_SHIFT) &
-			 * B43_DMA64_DCTL1_ADDREXT_MASK;
-			 */
-
-			dma_desc->addr_low = cpu_to_le32(lower_32_bits(ring->slots[j].dma_addr));
-			dma_desc->addr_high = cpu_to_le32(upper_32_bits(ring->slots[j].dma_addr));
-			dma_desc->ctl0 = cpu_to_le32(ctl0);
-			dma_desc->ctl1 = cpu_to_le32(ctl1);
-		}
+		for (j = 0; j < ring->num_slots; j++)
+			bgmac_dma_rx_setup_desc(bgmac, ring, j);
 
 		bgmac_write(bgmac, ring->mmio_base + BGMAC_DMA_RX_INDEX,
 			    ring->index_base +
-- 
cgit 


From 0352bd1f04b706904b26d13f6d8792e7ff6b7eb6 Mon Sep 17 00:00:00 2001
From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Fri, 25 Oct 2013 13:07:36 +0300
Subject: ARM: dts: omap4-panda: add DPI pinmuxing

New u-boot versions no longer set the pinmuxing for Panda's DPI output,
and the muxing has to be done in the .dts file.

Add pinmuxing for DPI and TFP410. Without these, the DVI output on Panda
does not work with recent u-boot.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap4-panda-common.dtsi | 43 +++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/arch/arm/boot/dts/omap4-panda-common.dtsi b/arch/arm/boot/dts/omap4-panda-common.dtsi
index 3e6801cecd04..298e85020e1b 100644
--- a/arch/arm/boot/dts/omap4-panda-common.dtsi
+++ b/arch/arm/boot/dts/omap4-panda-common.dtsi
@@ -112,6 +112,8 @@
 			&twl6040_pins
 			&mcpdm_pins
 			&mcbsp1_pins
+			&dss_dpi_pins
+			&tfp410_pins
 			&dss_hdmi_pins
 			&tpd12s015_pins
 			&hsusbb1_pins
@@ -143,6 +145,47 @@
 		>;
 	};
 
+	dss_dpi_pins: pinmux_dss_dpi_pins {
+		pinctrl-single,pins = <
+			0x122 (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data23 */
+			0x124 (PIN_OUTPUT | MUX_MODE5) 	/* dispc2_data22 */
+			0x126 (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data21 */
+			0x128 (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data20 */
+			0x12a (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data19 */
+			0x12c (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data18 */
+			0x12e (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data15 */
+			0x130 (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data14 */
+			0x132 (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data13 */
+			0x134 (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data12 */
+			0x136 (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data11 */
+
+			0x174 (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data10 */
+			0x176 (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data9 */
+			0x178 (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data16 */
+			0x17a (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data17 */
+			0x17c (PIN_OUTPUT | MUX_MODE5)	/* dispc2_hsync */
+			0x17e (PIN_OUTPUT | MUX_MODE5)	/* dispc2_pclk */
+			0x180 (PIN_OUTPUT | MUX_MODE5)	/* dispc2_vsync */
+			0x182 (PIN_OUTPUT | MUX_MODE5)	/* dispc2_de */
+			0x184 (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data8 */
+			0x186 (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data7 */
+			0x188 (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data6 */
+			0x18a (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data5 */
+			0x18c (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data4 */
+			0x18e (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data3 */
+
+			0x190 (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data2 */
+			0x192 (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data1 */
+			0x194 (PIN_OUTPUT | MUX_MODE5)	/* dispc2_data0 */
+		>;
+	};
+
+	tfp410_pins: pinmux_tfp410_pins {
+		pinctrl-single,pins = <
+			0x144 (PIN_OUTPUT | MUX_MODE3)	/* gpio_0 */
+		>;
+	};
+
 	dss_hdmi_pins: pinmux_dss_hdmi_pins {
 		pinctrl-single,pins = <
 			0x5a (PIN_INPUT_PULLUP | MUX_MODE0)	/* hdmi_cec.hdmi_cec */
-- 
cgit 


From 7d1d65cb84e1cfacba3f54c5934194785259e0d8 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 28 Oct 2013 16:43:02 +0100
Subject: net: sched: cls_bpf: add BPF-based classifier

This work contains a lightweight BPF-based traffic classifier that can
serve as a flexible alternative to ematch-based tree classification, i.e.
now that BPF filter engine can also be JITed in the kernel. Naturally, tc
actions and policies are supported as well with cls_bpf. Multiple BPF
programs/filter can be attached for a class, or they can just as well be
written within a single BPF program, that's really up to the user how he
wishes to run/optimize the code, e.g. also for inversion of verdicts etc.
The notion of a BPF program's return/exit codes is being kept as follows:

     0: No match
    -1: Select classid given in "tc filter ..." command
  else: flowid, overwrite the default one

As a minimal usage example with iproute2, we use a 3 band prio root qdisc
on a router with sfq each as leave, and assign ssh and icmp bpf-based
filters to band 1, http traffic to band 2 and the rest to band 3. For the
first two bands we load the bytecode from a file, in the 2nd we load it
inline as an example:

echo 1 > /proc/sys/net/core/bpf_jit_enable

tc qdisc del dev em1 root
tc qdisc add dev em1 root handle 1: prio bands 3 priomap 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

tc qdisc add dev em1 parent 1:1 sfq perturb 16
tc qdisc add dev em1 parent 1:2 sfq perturb 16
tc qdisc add dev em1 parent 1:3 sfq perturb 16

tc filter add dev em1 parent 1: bpf run bytecode-file /etc/tc/ssh.bpf flowid 1:1
tc filter add dev em1 parent 1: bpf run bytecode-file /etc/tc/icmp.bpf flowid 1:1
tc filter add dev em1 parent 1: bpf run bytecode-file /etc/tc/http.bpf flowid 1:2
tc filter add dev em1 parent 1: bpf run bytecode "`bpfc -f tc -i misc.ops`" flowid 1:3

BPF programs can be easily created and passed to tc, either as inline
'bytecode' or 'bytecode-file'. There are a couple of front-ends that can
compile opcodes, for example:

1) People familiar with tcpdump-like filters:

   tcpdump -iem1 -ddd port 22 | tr '\n' ',' > /etc/tc/ssh.bpf

2) People that want to low-level program their filters or use BPF
   extensions that lack support by libpcap's compiler:

   bpfc -f tc -i ssh.ops > /etc/tc/ssh.bpf

   ssh.ops example code:
   ldh [12]
   jne #0x800, drop
   ldb [23]
   jneq #6, drop
   ldh [20]
   jset #0x1fff, drop
   ldxb 4 * ([14] & 0xf)
   ldh [%x + 14]
   jeq #0x16, pass
   ldh [%x + 16]
   jne #0x16, drop
   pass: ret #-1
   drop: ret #0

It was chosen to load bytecode into tc, since the reverse operation,
tc filter list dev em1, is then able to show the exact commands again.
Possible follow-up work could also include a small expression compiler
for iproute2. Tested with the help of bmon. This idea came up during
the Netfilter Workshop 2013 in Copenhagen. Also thanks to feedback from
Eric Dumazet!

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/uapi/linux/pkt_cls.h |  14 ++
 net/sched/Kconfig            |  10 ++
 net/sched/Makefile           |   1 +
 net/sched/cls_bpf.c          | 385 +++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 410 insertions(+)
 create mode 100644 net/sched/cls_bpf.c

diff --git a/include/uapi/linux/pkt_cls.h b/include/uapi/linux/pkt_cls.h
index 082eafaf026b..25731dfb3fcc 100644
--- a/include/uapi/linux/pkt_cls.h
+++ b/include/uapi/linux/pkt_cls.h
@@ -388,6 +388,20 @@ enum {
 
 #define TCA_CGROUP_MAX (__TCA_CGROUP_MAX - 1)
 
+/* BPF classifier */
+
+enum {
+	TCA_BPF_UNSPEC,
+	TCA_BPF_ACT,
+	TCA_BPF_POLICE,
+	TCA_BPF_CLASSID,
+	TCA_BPF_OPS_LEN,
+	TCA_BPF_OPS,
+	__TCA_BPF_MAX,
+};
+
+#define TCA_BPF_MAX (__TCA_BPF_MAX - 1)
+
 /* Extended Matches */
 
 struct tcf_ematch_tree_hdr {
diff --git a/net/sched/Kconfig b/net/sched/Kconfig
index c03a32a0418e..ad1f1d819203 100644
--- a/net/sched/Kconfig
+++ b/net/sched/Kconfig
@@ -443,6 +443,16 @@ config NET_CLS_CGROUP
 	  To compile this code as a module, choose M here: the
 	  module will be called cls_cgroup.
 
+config NET_CLS_BPF
+	tristate "BPF-based classifier"
+	select NET_CLS
+	---help---
+	  If you say Y here, you will be able to classify packets based on
+	  programmable BPF (JIT'ed) filters as an alternative to ematches.
+
+	  To compile this code as a module, choose M here: the module will
+	  be called cls_bpf.
+
 config NET_EMATCH
 	bool "Extended Matches"
 	select NET_CLS
diff --git a/net/sched/Makefile b/net/sched/Makefile
index e5f9abe9a5db..35fa47a494ab 100644
--- a/net/sched/Makefile
+++ b/net/sched/Makefile
@@ -50,6 +50,7 @@ obj-$(CONFIG_NET_CLS_RSVP6)	+= cls_rsvp6.o
 obj-$(CONFIG_NET_CLS_BASIC)	+= cls_basic.o
 obj-$(CONFIG_NET_CLS_FLOW)	+= cls_flow.o
 obj-$(CONFIG_NET_CLS_CGROUP)	+= cls_cgroup.o
+obj-$(CONFIG_NET_CLS_BPF)	+= cls_bpf.o
 obj-$(CONFIG_NET_EMATCH)	+= ematch.o
 obj-$(CONFIG_NET_EMATCH_CMP)	+= em_cmp.o
 obj-$(CONFIG_NET_EMATCH_NBYTE)	+= em_nbyte.o
diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c
new file mode 100644
index 000000000000..1002a8226281
--- /dev/null
+++ b/net/sched/cls_bpf.c
@@ -0,0 +1,385 @@
+/*
+ * Berkeley Packet Filter based traffic classifier
+ *
+ * Might be used to classify traffic through flexible, user-defined and
+ * possibly JIT-ed BPF filters for traffic control as an alternative to
+ * ematches.
+ *
+ * (C) 2013 Daniel Borkmann <dborkman@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/skbuff.h>
+#include <linux/filter.h>
+#include <net/rtnetlink.h>
+#include <net/pkt_cls.h>
+#include <net/sock.h>
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Daniel Borkmann <dborkman@redhat.com>");
+MODULE_DESCRIPTION("TC BPF based classifier");
+
+struct cls_bpf_head {
+	struct list_head plist;
+	u32 hgen;
+};
+
+struct cls_bpf_prog {
+	struct sk_filter *filter;
+	struct sock_filter *bpf_ops;
+	struct tcf_exts exts;
+	struct tcf_result res;
+	struct list_head link;
+	u32 handle;
+	u16 bpf_len;
+};
+
+static const struct nla_policy bpf_policy[TCA_BPF_MAX + 1] = {
+	[TCA_BPF_CLASSID]	= { .type = NLA_U32 },
+	[TCA_BPF_OPS_LEN]	= { .type = NLA_U16 },
+	[TCA_BPF_OPS]		= { .type = NLA_BINARY,
+				    .len = sizeof(struct sock_filter) * BPF_MAXINSNS },
+};
+
+static const struct tcf_ext_map bpf_ext_map = {
+	.action = TCA_BPF_ACT,
+	.police = TCA_BPF_POLICE,
+};
+
+static int cls_bpf_classify(struct sk_buff *skb, const struct tcf_proto *tp,
+			    struct tcf_result *res)
+{
+	struct cls_bpf_head *head = tp->root;
+	struct cls_bpf_prog *prog;
+	int ret;
+
+	list_for_each_entry(prog, &head->plist, link) {
+		int filter_res = SK_RUN_FILTER(prog->filter, skb);
+
+		if (filter_res == 0)
+			continue;
+
+		*res = prog->res;
+		if (filter_res != -1)
+			res->classid = filter_res;
+
+		ret = tcf_exts_exec(skb, &prog->exts, res);
+		if (ret < 0)
+			continue;
+
+		return ret;
+	}
+
+	return -1;
+}
+
+static int cls_bpf_init(struct tcf_proto *tp)
+{
+	struct cls_bpf_head *head;
+
+	head = kzalloc(sizeof(*head), GFP_KERNEL);
+	if (head == NULL)
+		return -ENOBUFS;
+
+	INIT_LIST_HEAD(&head->plist);
+	tp->root = head;
+
+	return 0;
+}
+
+static void cls_bpf_delete_prog(struct tcf_proto *tp, struct cls_bpf_prog *prog)
+{
+	tcf_unbind_filter(tp, &prog->res);
+	tcf_exts_destroy(tp, &prog->exts);
+
+	sk_unattached_filter_destroy(prog->filter);
+
+	kfree(prog->bpf_ops);
+	kfree(prog);
+}
+
+static int cls_bpf_delete(struct tcf_proto *tp, unsigned long arg)
+{
+	struct cls_bpf_head *head = tp->root;
+	struct cls_bpf_prog *prog, *todel = (struct cls_bpf_prog *) arg;
+
+	list_for_each_entry(prog, &head->plist, link) {
+		if (prog == todel) {
+			tcf_tree_lock(tp);
+			list_del(&prog->link);
+			tcf_tree_unlock(tp);
+
+			cls_bpf_delete_prog(tp, prog);
+			return 0;
+		}
+	}
+
+	return -ENOENT;
+}
+
+static void cls_bpf_destroy(struct tcf_proto *tp)
+{
+	struct cls_bpf_head *head = tp->root;
+	struct cls_bpf_prog *prog, *tmp;
+
+	list_for_each_entry_safe(prog, tmp, &head->plist, link) {
+		list_del(&prog->link);
+		cls_bpf_delete_prog(tp, prog);
+	}
+
+	kfree(head);
+}
+
+static unsigned long cls_bpf_get(struct tcf_proto *tp, u32 handle)
+{
+	struct cls_bpf_head *head = tp->root;
+	struct cls_bpf_prog *prog;
+	unsigned long ret = 0UL;
+
+	if (head == NULL)
+		return 0UL;
+
+	list_for_each_entry(prog, &head->plist, link) {
+		if (prog->handle == handle) {
+			ret = (unsigned long) prog;
+			break;
+		}
+	}
+
+	return ret;
+}
+
+static void cls_bpf_put(struct tcf_proto *tp, unsigned long f)
+{
+}
+
+static int cls_bpf_modify_existing(struct net *net, struct tcf_proto *tp,
+				   struct cls_bpf_prog *prog,
+				   unsigned long base, struct nlattr **tb,
+				   struct nlattr *est)
+{
+	struct sock_filter *bpf_ops, *bpf_old;
+	struct tcf_exts exts;
+	struct sock_fprog tmp;
+	struct sk_filter *fp, *fp_old;
+	u16 bpf_size, bpf_len;
+	u32 classid;
+	int ret;
+
+	if (!tb[TCA_BPF_OPS_LEN] || !tb[TCA_BPF_OPS] || !tb[TCA_BPF_CLASSID])
+		return -EINVAL;
+
+	ret = tcf_exts_validate(net, tp, tb, est, &exts, &bpf_ext_map);
+	if (ret < 0)
+		return ret;
+
+	classid = nla_get_u32(tb[TCA_BPF_CLASSID]);
+	bpf_len = nla_get_u16(tb[TCA_BPF_OPS_LEN]);
+	if (bpf_len > BPF_MAXINSNS || bpf_len == 0) {
+		ret = -EINVAL;
+		goto errout;
+	}
+
+	bpf_size = bpf_len * sizeof(*bpf_ops);
+	bpf_ops = kzalloc(bpf_size, GFP_KERNEL);
+	if (bpf_ops == NULL) {
+		ret = -ENOMEM;
+		goto errout;
+	}
+
+	memcpy(bpf_ops, nla_data(tb[TCA_BPF_OPS]), bpf_size);
+
+	tmp.len = bpf_len;
+	tmp.filter = (struct sock_filter __user *) bpf_ops;
+
+	ret = sk_unattached_filter_create(&fp, &tmp);
+	if (ret)
+		goto errout_free;
+
+	tcf_tree_lock(tp);
+	fp_old = prog->filter;
+	bpf_old = prog->bpf_ops;
+
+	prog->bpf_len = bpf_len;
+	prog->bpf_ops = bpf_ops;
+	prog->filter = fp;
+	prog->res.classid = classid;
+	tcf_tree_unlock(tp);
+
+	tcf_bind_filter(tp, &prog->res, base);
+	tcf_exts_change(tp, &prog->exts, &exts);
+
+	if (fp_old)
+		sk_unattached_filter_destroy(fp_old);
+	if (bpf_old)
+		kfree(bpf_old);
+
+	return 0;
+
+errout_free:
+	kfree(bpf_ops);
+errout:
+	tcf_exts_destroy(tp, &exts);
+	return ret;
+}
+
+static u32 cls_bpf_grab_new_handle(struct tcf_proto *tp,
+				   struct cls_bpf_head *head)
+{
+	unsigned int i = 0x80000000;
+
+	do {
+		if (++head->hgen == 0x7FFFFFFF)
+			head->hgen = 1;
+	} while (--i > 0 && cls_bpf_get(tp, head->hgen));
+	if (i == 0)
+		pr_err("Insufficient number of handles\n");
+
+	return i;
+}
+
+static int cls_bpf_change(struct net *net, struct sk_buff *in_skb,
+			  struct tcf_proto *tp, unsigned long base,
+			  u32 handle, struct nlattr **tca,
+			  unsigned long *arg)
+{
+	struct cls_bpf_head *head = tp->root;
+	struct cls_bpf_prog *prog = (struct cls_bpf_prog *) *arg;
+	struct nlattr *tb[TCA_BPF_MAX + 1];
+	int ret;
+
+	if (tca[TCA_OPTIONS] == NULL)
+		return -EINVAL;
+
+	ret = nla_parse_nested(tb, TCA_BPF_MAX, tca[TCA_OPTIONS], bpf_policy);
+	if (ret < 0)
+		return ret;
+
+	if (prog != NULL) {
+		if (handle && prog->handle != handle)
+			return -EINVAL;
+		return cls_bpf_modify_existing(net, tp, prog, base, tb,
+					       tca[TCA_RATE]);
+	}
+
+	prog = kzalloc(sizeof(*prog), GFP_KERNEL);
+	if (prog == NULL)
+		return -ENOBUFS;
+
+	if (handle == 0)
+		prog->handle = cls_bpf_grab_new_handle(tp, head);
+	else
+		prog->handle = handle;
+	if (prog->handle == 0) {
+		ret = -EINVAL;
+		goto errout;
+	}
+
+	ret = cls_bpf_modify_existing(net, tp, prog, base, tb, tca[TCA_RATE]);
+	if (ret < 0)
+		goto errout;
+
+	tcf_tree_lock(tp);
+	list_add(&prog->link, &head->plist);
+	tcf_tree_unlock(tp);
+
+	*arg = (unsigned long) prog;
+
+	return 0;
+errout:
+	if (*arg == 0UL && prog)
+		kfree(prog);
+
+	return ret;
+}
+
+static int cls_bpf_dump(struct tcf_proto *tp, unsigned long fh,
+			struct sk_buff *skb, struct tcmsg *tm)
+{
+	struct cls_bpf_prog *prog = (struct cls_bpf_prog *) fh;
+	struct nlattr *nest, *nla;
+
+	if (prog == NULL)
+		return skb->len;
+
+	tm->tcm_handle = prog->handle;
+
+	nest = nla_nest_start(skb, TCA_OPTIONS);
+	if (nest == NULL)
+		goto nla_put_failure;
+
+	if (nla_put_u32(skb, TCA_BPF_CLASSID, prog->res.classid))
+		goto nla_put_failure;
+	if (nla_put_u16(skb, TCA_BPF_OPS_LEN, prog->bpf_len))
+		goto nla_put_failure;
+
+	nla = nla_reserve(skb, TCA_BPF_OPS, prog->bpf_len *
+			  sizeof(struct sock_filter));
+	if (nla == NULL)
+		goto nla_put_failure;
+
+        memcpy(nla_data(nla), prog->bpf_ops, nla_len(nla));
+
+	if (tcf_exts_dump(skb, &prog->exts, &bpf_ext_map) < 0)
+		goto nla_put_failure;
+
+	nla_nest_end(skb, nest);
+
+	if (tcf_exts_dump_stats(skb, &prog->exts, &bpf_ext_map) < 0)
+		goto nla_put_failure;
+
+	return skb->len;
+
+nla_put_failure:
+	nla_nest_cancel(skb, nest);
+	return -1;
+}
+
+static void cls_bpf_walk(struct tcf_proto *tp, struct tcf_walker *arg)
+{
+	struct cls_bpf_head *head = tp->root;
+	struct cls_bpf_prog *prog;
+
+	list_for_each_entry(prog, &head->plist, link) {
+		if (arg->count < arg->skip)
+			goto skip;
+		if (arg->fn(tp, (unsigned long) prog, arg) < 0) {
+			arg->stop = 1;
+			break;
+		}
+skip:
+		arg->count++;
+	}
+}
+
+static struct tcf_proto_ops cls_bpf_ops __read_mostly = {
+	.kind		=	"bpf",
+	.owner		=	THIS_MODULE,
+	.classify	=	cls_bpf_classify,
+	.init		=	cls_bpf_init,
+	.destroy	=	cls_bpf_destroy,
+	.get		=	cls_bpf_get,
+	.put		=	cls_bpf_put,
+	.change		=	cls_bpf_change,
+	.delete		=	cls_bpf_delete,
+	.walk		=	cls_bpf_walk,
+	.dump		=	cls_bpf_dump,
+};
+
+static int __init cls_bpf_init_mod(void)
+{
+	return register_tcf_proto_ops(&cls_bpf_ops);
+}
+
+static void __exit cls_bpf_exit_mod(void)
+{
+	unregister_tcf_proto_ops(&cls_bpf_ops);
+}
+
+module_init(cls_bpf_init_mod);
+module_exit(cls_bpf_exit_mod);
-- 
cgit 


From 706e282b6975305285980ddd903bcd246d2e4fcd Mon Sep 17 00:00:00 2001
From: Michael Drüing <michael@drueing.de>
Date: Mon, 28 Oct 2013 18:33:12 +0100
Subject: net: x25: Fix dead URLs in Kconfig
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Update the URLs in the Kconfig file to the new pages at sangoma.com and cisco.com

Signed-off-by: Michael Drüing <michael@drueing.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/x25/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/x25/Kconfig b/net/x25/Kconfig
index c959312c45e3..e2fa133f9fba 100644
--- a/net/x25/Kconfig
+++ b/net/x25/Kconfig
@@ -16,8 +16,8 @@ config X25
 	  if you want that) and the lower level data link layer protocol LAPB
 	  (say Y to "LAPB Data Link Driver" below if you want that).
 
-	  You can read more about X.25 at <http://www.sangoma.com/x25.htm> and
-	  <http://www.cisco.com/univercd/cc/td/doc/product/software/ios11/cbook/cx25.htm>.
+	  You can read more about X.25 at <http://www.sangoma.com/tutorials/x25/> and
+	  <http://docwiki.cisco.com/wiki/X.25>.
 	  Information about X.25 for Linux is contained in the files
 	  <file:Documentation/networking/x25.txt> and
 	  <file:Documentation/networking/x25-iface.txt>.
-- 
cgit 


From 06499098a02b9ed906a7b6060f2c60fb813918d4 Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vyasevic@redhat.com>
Date: Mon, 28 Oct 2013 15:45:07 -0400
Subject: bridge: pass correct vlan id to multicast code

Currently multicast code attempts to extrace the vlan id from
the skb even when vlan filtering is disabled.  This can lead
to mdb entries being created with the wrong vlan id.
Pass the already extracted vlan id to the multicast
filtering code to make the correct id is used in
creation as well as lookup.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Acked-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/bridge/br_device.c    |  2 +-
 net/bridge/br_input.c     |  2 +-
 net/bridge/br_multicast.c | 44 +++++++++++++++++++-------------------------
 net/bridge/br_private.h   |  6 ++++--
 4 files changed, 25 insertions(+), 29 deletions(-)

diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index ca04163635da..e6b7fecb3af1 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -64,7 +64,7 @@ netdev_tx_t br_dev_xmit(struct sk_buff *skb, struct net_device *dev)
 			br_flood_deliver(br, skb, false);
 			goto out;
 		}
-		if (br_multicast_rcv(br, NULL, skb)) {
+		if (br_multicast_rcv(br, NULL, skb, vid)) {
 			kfree_skb(skb);
 			goto out;
 		}
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index a2fd37ec35f7..7e73c32e205d 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -80,7 +80,7 @@ int br_handle_frame_finish(struct sk_buff *skb)
 		br_fdb_update(br, p, eth_hdr(skb)->h_source, vid);
 
 	if (!is_broadcast_ether_addr(dest) && is_multicast_ether_addr(dest) &&
-	    br_multicast_rcv(br, p, skb))
+	    br_multicast_rcv(br, p, skb, vid))
 		goto drop;
 
 	if (p->state == BR_STATE_LEARNING)
diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index 8b0b610ca2c9..686284ff3d6a 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -947,7 +947,8 @@ void br_multicast_disable_port(struct net_bridge_port *port)
 
 static int br_ip4_multicast_igmp3_report(struct net_bridge *br,
 					 struct net_bridge_port *port,
-					 struct sk_buff *skb)
+					 struct sk_buff *skb,
+					 u16 vid)
 {
 	struct igmpv3_report *ih;
 	struct igmpv3_grec *grec;
@@ -957,12 +958,10 @@ static int br_ip4_multicast_igmp3_report(struct net_bridge *br,
 	int type;
 	int err = 0;
 	__be32 group;
-	u16 vid = 0;
 
 	if (!pskb_may_pull(skb, sizeof(*ih)))
 		return -EINVAL;
 
-	br_vlan_get_tag(skb, &vid);
 	ih = igmpv3_report_hdr(skb);
 	num = ntohs(ih->ngrec);
 	len = sizeof(*ih);
@@ -1005,7 +1004,8 @@ static int br_ip4_multicast_igmp3_report(struct net_bridge *br,
 #if IS_ENABLED(CONFIG_IPV6)
 static int br_ip6_multicast_mld2_report(struct net_bridge *br,
 					struct net_bridge_port *port,
-					struct sk_buff *skb)
+					struct sk_buff *skb,
+					u16 vid)
 {
 	struct icmp6hdr *icmp6h;
 	struct mld2_grec *grec;
@@ -1013,12 +1013,10 @@ static int br_ip6_multicast_mld2_report(struct net_bridge *br,
 	int len;
 	int num;
 	int err = 0;
-	u16 vid = 0;
 
 	if (!pskb_may_pull(skb, sizeof(*icmp6h)))
 		return -EINVAL;
 
-	br_vlan_get_tag(skb, &vid);
 	icmp6h = icmp6_hdr(skb);
 	num = ntohs(icmp6h->icmp6_dataun.un_data16[1]);
 	len = sizeof(*icmp6h);
@@ -1141,7 +1139,8 @@ static void br_multicast_query_received(struct net_bridge *br,
 
 static int br_ip4_multicast_query(struct net_bridge *br,
 				  struct net_bridge_port *port,
-				  struct sk_buff *skb)
+				  struct sk_buff *skb,
+				  u16 vid)
 {
 	const struct iphdr *iph = ip_hdr(skb);
 	struct igmphdr *ih = igmp_hdr(skb);
@@ -1153,7 +1152,6 @@ static int br_ip4_multicast_query(struct net_bridge *br,
 	unsigned long now = jiffies;
 	__be32 group;
 	int err = 0;
-	u16 vid = 0;
 
 	spin_lock(&br->multicast_lock);
 	if (!netif_running(br->dev) ||
@@ -1189,7 +1187,6 @@ static int br_ip4_multicast_query(struct net_bridge *br,
 	if (!group)
 		goto out;
 
-	br_vlan_get_tag(skb, &vid);
 	mp = br_mdb_ip4_get(mlock_dereference(br->mdb, br), group, vid);
 	if (!mp)
 		goto out;
@@ -1219,7 +1216,8 @@ out:
 #if IS_ENABLED(CONFIG_IPV6)
 static int br_ip6_multicast_query(struct net_bridge *br,
 				  struct net_bridge_port *port,
-				  struct sk_buff *skb)
+				  struct sk_buff *skb,
+				  u16 vid)
 {
 	const struct ipv6hdr *ip6h = ipv6_hdr(skb);
 	struct mld_msg *mld;
@@ -1231,7 +1229,6 @@ static int br_ip6_multicast_query(struct net_bridge *br,
 	unsigned long now = jiffies;
 	const struct in6_addr *group = NULL;
 	int err = 0;
-	u16 vid = 0;
 
 	spin_lock(&br->multicast_lock);
 	if (!netif_running(br->dev) ||
@@ -1265,7 +1262,6 @@ static int br_ip6_multicast_query(struct net_bridge *br,
 	if (!group)
 		goto out;
 
-	br_vlan_get_tag(skb, &vid);
 	mp = br_mdb_ip6_get(mlock_dereference(br->mdb, br), group, vid);
 	if (!mp)
 		goto out;
@@ -1439,7 +1435,8 @@ static void br_ip6_multicast_leave_group(struct net_bridge *br,
 
 static int br_multicast_ipv4_rcv(struct net_bridge *br,
 				 struct net_bridge_port *port,
-				 struct sk_buff *skb)
+				 struct sk_buff *skb,
+				 u16 vid)
 {
 	struct sk_buff *skb2 = skb;
 	const struct iphdr *iph;
@@ -1447,7 +1444,6 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br,
 	unsigned int len;
 	unsigned int offset;
 	int err;
-	u16 vid = 0;
 
 	/* We treat OOM as packet loss for now. */
 	if (!pskb_may_pull(skb, sizeof(*iph)))
@@ -1508,7 +1504,6 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br,
 
 	err = 0;
 
-	br_vlan_get_tag(skb2, &vid);
 	BR_INPUT_SKB_CB(skb)->igmp = 1;
 	ih = igmp_hdr(skb2);
 
@@ -1519,10 +1514,10 @@ static int br_multicast_ipv4_rcv(struct net_bridge *br,
 		err = br_ip4_multicast_add_group(br, port, ih->group, vid);
 		break;
 	case IGMPV3_HOST_MEMBERSHIP_REPORT:
-		err = br_ip4_multicast_igmp3_report(br, port, skb2);
+		err = br_ip4_multicast_igmp3_report(br, port, skb2, vid);
 		break;
 	case IGMP_HOST_MEMBERSHIP_QUERY:
-		err = br_ip4_multicast_query(br, port, skb2);
+		err = br_ip4_multicast_query(br, port, skb2, vid);
 		break;
 	case IGMP_HOST_LEAVE_MESSAGE:
 		br_ip4_multicast_leave_group(br, port, ih->group, vid);
@@ -1540,7 +1535,8 @@ err_out:
 #if IS_ENABLED(CONFIG_IPV6)
 static int br_multicast_ipv6_rcv(struct net_bridge *br,
 				 struct net_bridge_port *port,
-				 struct sk_buff *skb)
+				 struct sk_buff *skb,
+				 u16 vid)
 {
 	struct sk_buff *skb2;
 	const struct ipv6hdr *ip6h;
@@ -1550,7 +1546,6 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br,
 	unsigned int len;
 	int offset;
 	int err;
-	u16 vid = 0;
 
 	if (!pskb_may_pull(skb, sizeof(*ip6h)))
 		return -EINVAL;
@@ -1640,7 +1635,6 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br,
 
 	err = 0;
 
-	br_vlan_get_tag(skb, &vid);
 	BR_INPUT_SKB_CB(skb)->igmp = 1;
 
 	switch (icmp6_type) {
@@ -1657,10 +1651,10 @@ static int br_multicast_ipv6_rcv(struct net_bridge *br,
 		break;
 	    }
 	case ICMPV6_MLD2_REPORT:
-		err = br_ip6_multicast_mld2_report(br, port, skb2);
+		err = br_ip6_multicast_mld2_report(br, port, skb2, vid);
 		break;
 	case ICMPV6_MGM_QUERY:
-		err = br_ip6_multicast_query(br, port, skb2);
+		err = br_ip6_multicast_query(br, port, skb2, vid);
 		break;
 	case ICMPV6_MGM_REDUCTION:
 	    {
@@ -1681,7 +1675,7 @@ out:
 #endif
 
 int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port,
-		     struct sk_buff *skb)
+		     struct sk_buff *skb, u16 vid)
 {
 	BR_INPUT_SKB_CB(skb)->igmp = 0;
 	BR_INPUT_SKB_CB(skb)->mrouters_only = 0;
@@ -1691,10 +1685,10 @@ int br_multicast_rcv(struct net_bridge *br, struct net_bridge_port *port,
 
 	switch (skb->protocol) {
 	case htons(ETH_P_IP):
-		return br_multicast_ipv4_rcv(br, port, skb);
+		return br_multicast_ipv4_rcv(br, port, skb, vid);
 #if IS_ENABLED(CONFIG_IPV6)
 	case htons(ETH_P_IPV6):
-		return br_multicast_ipv6_rcv(br, port, skb);
+		return br_multicast_ipv6_rcv(br, port, skb, vid);
 #endif
 	}
 
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h
index e14c33b42f75..2e8244efb262 100644
--- a/net/bridge/br_private.h
+++ b/net/bridge/br_private.h
@@ -451,7 +451,8 @@ extern int br_ioctl_deviceless_stub(struct net *net, unsigned int cmd, void __us
 extern unsigned int br_mdb_rehash_seq;
 extern int br_multicast_rcv(struct net_bridge *br,
 			    struct net_bridge_port *port,
-			    struct sk_buff *skb);
+			    struct sk_buff *skb,
+			    u16 vid);
 extern struct net_bridge_mdb_entry *br_mdb_get(struct net_bridge *br,
 					       struct sk_buff *skb, u16 vid);
 extern void br_multicast_add_port(struct net_bridge_port *port);
@@ -522,7 +523,8 @@ static inline bool br_multicast_querier_exists(struct net_bridge *br,
 #else
 static inline int br_multicast_rcv(struct net_bridge *br,
 				   struct net_bridge_port *port,
-				   struct sk_buff *skb)
+				   struct sk_buff *skb,
+				   u16 vid)
 {
 	return 0;
 }
-- 
cgit 


From 22ded57729e69974ce45643d65415c9983a168a8 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Mon, 28 Oct 2013 12:53:21 -0700
Subject: netconsole: Convert to pr_<level>

Use a more current logging style.

Convert printks to pr_<level>.

Consolidate multiple printks into a single printk to avoid
any possible dmesg interleaving.  Add a default "event" msg
in case the listed types are ever expanded.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/netconsole.c | 57 +++++++++++++++++++++++-------------------------
 1 file changed, 27 insertions(+), 30 deletions(-)

diff --git a/drivers/net/netconsole.c b/drivers/net/netconsole.c
index adeee615dd19..a8ef4c4b94be 100644
--- a/drivers/net/netconsole.c
+++ b/drivers/net/netconsole.c
@@ -34,6 +34,8 @@
  *
  ****************************************************************/
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/mm.h>
 #include <linux/init.h>
 #include <linux/module.h>
@@ -319,8 +321,8 @@ static ssize_t store_enabled(struct netconsole_target *nt,
 	if (enabled < 0 || enabled > 1)
 		return -EINVAL;
 	if (enabled == nt->enabled) {
-		printk(KERN_INFO "netconsole: network logging has already %s\n",
-				nt->enabled ? "started" : "stopped");
+		pr_info("network logging has already %s\n",
+			nt->enabled ? "started" : "stopped");
 		return -EINVAL;
 	}
 
@@ -339,7 +341,7 @@ static ssize_t store_enabled(struct netconsole_target *nt,
 			return err;
 		}
 
-		printk(KERN_INFO "netconsole: network logging started\n");
+		pr_info("network logging started\n");
 
 	} else {	/* 0 */
 		netpoll_cleanup(&nt->np);
@@ -358,9 +360,8 @@ static ssize_t store_dev_name(struct netconsole_target *nt,
 	size_t len;
 
 	if (nt->enabled) {
-		printk(KERN_ERR "netconsole: target (%s) is enabled, "
-				"disable to update parameters\n",
-				config_item_name(&nt->item));
+		pr_err("target (%s) is enabled, disable to update parameters\n",
+		       config_item_name(&nt->item));
 		return -EINVAL;
 	}
 
@@ -381,9 +382,8 @@ static ssize_t store_local_port(struct netconsole_target *nt,
 	int rv;
 
 	if (nt->enabled) {
-		printk(KERN_ERR "netconsole: target (%s) is enabled, "
-				"disable to update parameters\n",
-				config_item_name(&nt->item));
+		pr_err("target (%s) is enabled, disable to update parameters\n",
+		       config_item_name(&nt->item));
 		return -EINVAL;
 	}
 
@@ -400,9 +400,8 @@ static ssize_t store_remote_port(struct netconsole_target *nt,
 	int rv;
 
 	if (nt->enabled) {
-		printk(KERN_ERR "netconsole: target (%s) is enabled, "
-				"disable to update parameters\n",
-				config_item_name(&nt->item));
+		pr_err("target (%s) is enabled, disable to update parameters\n",
+		       config_item_name(&nt->item));
 		return -EINVAL;
 	}
 
@@ -417,9 +416,8 @@ static ssize_t store_local_ip(struct netconsole_target *nt,
 			      size_t count)
 {
 	if (nt->enabled) {
-		printk(KERN_ERR "netconsole: target (%s) is enabled, "
-				"disable to update parameters\n",
-				config_item_name(&nt->item));
+		pr_err("target (%s) is enabled, disable to update parameters\n",
+		       config_item_name(&nt->item));
 		return -EINVAL;
 	}
 
@@ -427,7 +425,7 @@ static ssize_t store_local_ip(struct netconsole_target *nt,
 		const char *end;
 		if (in6_pton(buf, count, nt->np.local_ip.in6.s6_addr, -1, &end) > 0) {
 			if (*end && *end != '\n') {
-				printk(KERN_ERR "netconsole: invalid IPv6 address at: <%c>\n", *end);
+				pr_err("invalid IPv6 address at: <%c>\n", *end);
 				return -EINVAL;
 			}
 			nt->np.ipv6 = true;
@@ -448,9 +446,8 @@ static ssize_t store_remote_ip(struct netconsole_target *nt,
 			       size_t count)
 {
 	if (nt->enabled) {
-		printk(KERN_ERR "netconsole: target (%s) is enabled, "
-				"disable to update parameters\n",
-				config_item_name(&nt->item));
+		pr_err("target (%s) is enabled, disable to update parameters\n",
+		       config_item_name(&nt->item));
 		return -EINVAL;
 	}
 
@@ -458,7 +455,7 @@ static ssize_t store_remote_ip(struct netconsole_target *nt,
 		const char *end;
 		if (in6_pton(buf, count, nt->np.remote_ip.in6.s6_addr, -1, &end) > 0) {
 			if (*end && *end != '\n') {
-				printk(KERN_ERR "netconsole: invalid IPv6 address at: <%c>\n", *end);
+				pr_err("invalid IPv6 address at: <%c>\n", *end);
 				return -EINVAL;
 			}
 			nt->np.ipv6 = true;
@@ -481,9 +478,8 @@ static ssize_t store_remote_mac(struct netconsole_target *nt,
 	u8 remote_mac[ETH_ALEN];
 
 	if (nt->enabled) {
-		printk(KERN_ERR "netconsole: target (%s) is enabled, "
-				"disable to update parameters\n",
-				config_item_name(&nt->item));
+		pr_err("target (%s) is enabled, disable to update parameters\n",
+		       config_item_name(&nt->item));
 		return -EINVAL;
 	}
 
@@ -704,19 +700,20 @@ restart:
 	}
 	spin_unlock_irqrestore(&target_list_lock, flags);
 	if (stopped) {
-		printk(KERN_INFO "netconsole: network logging stopped on "
-		       "interface %s as it ", dev->name);
+		const char *msg = "had an event";
 		switch (event) {
 		case NETDEV_UNREGISTER:
-			printk(KERN_CONT "unregistered\n");
+			msg = "unregistered";
 			break;
 		case NETDEV_RELEASE:
-			printk(KERN_CONT "released slaves\n");
+			msg = "released slaves";
 			break;
 		case NETDEV_JOIN:
-			printk(KERN_CONT "is joining a master device\n");
+			msg = "is joining a master device";
 			break;
 		}
+		pr_info("network logging stopped on interface %s as it %s\n",
+			dev->name, msg);
 	}
 
 done:
@@ -802,7 +799,7 @@ static int __init init_netconsole(void)
 		goto undonotifier;
 
 	register_console(&netconsole);
-	printk(KERN_INFO "netconsole: network logging started\n");
+	pr_info("network logging started\n");
 
 	return err;
 
@@ -810,7 +807,7 @@ undonotifier:
 	unregister_netdevice_notifier(&netconsole_netdev_notifier);
 
 fail:
-	printk(KERN_ERR "netconsole: cleaning up\n");
+	pr_err("cleaning up\n");
 
 	/*
 	 * Remove all targets and destroy them (only targets created
-- 
cgit 


From 49e7372063a220651b4f12fa46113559533cafee Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Thu, 12 Sep 2013 09:31:39 -0400
Subject: nfsd: fh_update should error out in unexpected cases
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The reporter saw a NULL dereference when a filesystem's ->mknod returned
success but left the dentry negative, and then nfsd tried to dereference
d_inode (in this case because the CREATE was followed by a GETATTR in
the same nfsv4 compound).

fh_update already checks for this and another broken case, but for some
reason it returns success and leaves nfsd trying to soldier on.  If it
failed we'd avoid the crash.  There's only so much we can do with a
buggy filesystem, but it's easy enough to bail out here, so let's do
that.

Reported-by: Antti Tönkyrä <daedalus@pingtimeout.net>
Tested-by: Antti Tönkyrä <daedalus@pingtimeout.net>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/nfsfh.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index 3d0e15ae6f72..3c37b160dcad 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -598,22 +598,20 @@ fh_update(struct svc_fh *fhp)
 		_fh_update_old(dentry, fhp->fh_export, &fhp->fh_handle);
 	} else {
 		if (fhp->fh_handle.fh_fileid_type != FILEID_ROOT)
-			goto out;
+			return 0;
 
 		_fh_update(fhp, fhp->fh_export, dentry);
 		if (fhp->fh_handle.fh_fileid_type == FILEID_INVALID)
 			return nfserr_opnotsupp;
 	}
-out:
 	return 0;
-
 out_bad:
 	printk(KERN_ERR "fh_update: fh not verified!\n");
-	goto out;
+	return nfserr_serverfault;
 out_negative:
 	printk(KERN_ERR "fh_update: %pd2 still negative!\n",
 		dentry);
-	goto out;
+	return nfserr_serverfault;
 }
 
 /*
-- 
cgit 


From 427d6c6646d868fbd3094e7e2e1644d480cd9204 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Fri, 13 Sep 2013 11:08:45 -0400
Subject: nfsd: return better errors to exportfs

Someone noticed exportfs happily accepted exports that would later be
rejected when mountd tried to give them to the kernel.  Fix this.

This is a regression from 4c1e1b34d5c800ad3ac9a7e2805b0bea70ad2278
"nfsd: Store ex_anon_uid and ex_anon_gid as kuids and kgids".

Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: stable@vger.kernel.org
Reported-by: Yin.JianHong <jiyin@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/export.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 5f38ea36e266..af51cf9bf2e3 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -536,16 +536,12 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
 		if (err)
 			goto out3;
 		exp.ex_anon_uid= make_kuid(&init_user_ns, an_int);
-		if (!uid_valid(exp.ex_anon_uid))
-			goto out3;
 
 		/* anon gid */
 		err = get_int(&mesg, &an_int);
 		if (err)
 			goto out3;
 		exp.ex_anon_gid= make_kgid(&init_user_ns, an_int);
-		if (!gid_valid(exp.ex_anon_gid))
-			goto out3;
 
 		/* fsid */
 		err = get_int(&mesg, &an_int);
@@ -583,6 +579,17 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
 				   exp.ex_uuid);
 		if (err)
 			goto out4;
+		/*
+		 * For some reason exportfs has been passing down an
+		 * invalid (-1) uid & gid on the "dummy" export which it
+		 * uses to test export support.  To make sure exportfs
+		 * sees errors from check_export we therefore need to
+		 * delay these checks till after check_export:
+		 */
+		if (!uid_valid(exp.ex_anon_uid))
+			goto out4;
+		if (!gid_valid(exp.ex_anon_gid))
+			goto out4;
 	}
 
 	expp = svc_export_lookup(&exp);
-- 
cgit 


From 6f6cc3205c5f10129b8a10cdf8abf85d9db48a60 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Fri, 13 Sep 2013 17:50:42 -0400
Subject: nfsd: -EINVAL on invalid anonuid/gid instead of silent failure

If we're going to refuse to accept these it would be polite of us to at
least say so....

This introduces a slight complication since we need to grandfather in
exportfs's ill-advised use of -1 uid and gid on its test_export.

If it turns out there are other users passing down -1 we may need to
do something else.

Best might be to drop the checks entirely, but I'm not sure if other
parts of the kernel might assume that a task can't run as uid or gid -1.

Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/export.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index af51cf9bf2e3..8513c598fabf 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -579,6 +579,13 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
 				   exp.ex_uuid);
 		if (err)
 			goto out4;
+		/*
+		 * No point caching this if it would immediately expire.
+		 * Also, this protects exportfs's dummy export from the
+		 * anon_uid/anon_gid checks:
+		 */
+		if (exp.h.expiry_time < seconds_since_boot())
+			goto out4;
 		/*
 		 * For some reason exportfs has been passing down an
 		 * invalid (-1) uid & gid on the "dummy" export which it
@@ -586,10 +593,12 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
 		 * sees errors from check_export we therefore need to
 		 * delay these checks till after check_export:
 		 */
+		err = -EINVAL;
 		if (!uid_valid(exp.ex_anon_uid))
 			goto out4;
 		if (!gid_valid(exp.ex_anon_gid))
 			goto out4;
+		err = 0;
 	}
 
 	expp = svc_export_lookup(&exp);
-- 
cgit 


From 547e2daebaba9a953a098d454c18543d1818622e Mon Sep 17 00:00:00 2001
From: Gavin Shan <shangw@linux.vnet.ibm.com>
Date: Tue, 29 Oct 2013 17:30:56 +0800
Subject: net/benet: Remove interface type

The interface type, which is being traced by "struct be_adapter::
if_type", isn't used currently. So we can remove that safely
according to Sathya's comments.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be.h      | 1 -
 drivers/net/ethernet/emulex/benet/be_main.c | 5 -----
 2 files changed, 6 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index b2765ebb0268..2c88ac295eea 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -470,7 +470,6 @@ struct be_adapter {
 	u32 rx_fc;		/* Rx flow control */
 	u32 tx_fc;		/* Tx flow control */
 	bool stats_cmd_sent;
-	u32 if_type;
 	struct {
 		u32 size;
 		u32 total_size;
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 03e0c74f2516..8080a1a5cee7 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -4095,11 +4095,6 @@ static int be_roce_map_pci_bars(struct be_adapter *adapter)
 static int be_map_pci_bars(struct be_adapter *adapter)
 {
 	u8 __iomem *addr;
-	u32 sli_intf;
-
-	pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
-	adapter->if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
-				SLI_INTF_IF_TYPE_SHIFT;
 
 	if (BEx_chip(adapter) && be_physfn(adapter)) {
 		adapter->csr = pci_iomap(adapter->pdev, 2, 0);
-- 
cgit 


From 87f20c26f9c0bedc39ff7d6682b2f3772da6e25b Mon Sep 17 00:00:00 2001
From: Gavin Shan <shangw@linux.vnet.ibm.com>
Date: Tue, 29 Oct 2013 17:30:57 +0800
Subject: net/benet: Make lancer_wait_ready() static

The function needn't to be public, so to make it as static.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be_cmds.c | 2 +-
 drivers/net/ethernet/emulex/benet/be_cmds.h | 1 -
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index 2d554366b342..7fb0edfe3d24 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -522,7 +522,7 @@ static u16 be_POST_stage_get(struct be_adapter *adapter)
 	return sem & POST_STAGE_MASK;
 }
 
-int lancer_wait_ready(struct be_adapter *adapter)
+static int lancer_wait_ready(struct be_adapter *adapter)
 {
 #define SLIPORT_READY_TIMEOUT 30
 	u32 sliport_status;
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index 88708372d5e5..edf3e8a0ff83 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -2053,7 +2053,6 @@ int be_cmd_get_ext_fat_capabilites(struct be_adapter *adapter,
 int be_cmd_set_ext_fat_capabilites(struct be_adapter *adapter,
 				   struct be_dma_mem *cmd,
 				   struct be_fat_conf_params *cfgs);
-int lancer_wait_ready(struct be_adapter *adapter);
 int lancer_physdev_ctrl(struct be_adapter *adapter, u32 mask);
 int lancer_initiate_dump(struct be_adapter *adapter);
 bool dump_present(struct be_adapter *adapter);
-- 
cgit 


From 56b3f3b884652395e1025a8e4f1c4bd47bc112c4 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Thu, 24 Oct 2013 11:49:07 -0400
Subject: sysfs: merge sysfs_elem_bin_attr into sysfs_elem_attr

3124eb1679 ("sysfs: merge regular and bin file handling") folded bin
file handling into regular file handling.  Among other things, bin
file now shares the same open path including sysfs_open_dirent
association using sysfs_dirent->s_attr.open.  This is buggy because
->s_bin_attr lives in the same union and doesn't have the field.  This
bug doesn't trigger because sysfs_elem_bin_attr doesn't have an active
field at the conflicting position.  It does have a field "buffers" but
it isn't used anymore.

This patch collapses sysfs_elem_bin_attr into sysfs_elem_attr so that
the bin_attr is accessed through ->s_attr.bin_attr which lives with
->s_attr.attr in an anonymous union.  The code paths already assume
bin_attr contains attr as the first element, so this doesn't add any
more assumptions while making it explicit that the two types are
handled together.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/file.c  |  8 ++++----
 fs/sysfs/inode.c |  2 +-
 fs/sysfs/sysfs.h | 11 ++++-------
 3 files changed, 9 insertions(+), 12 deletions(-)

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index c3795978b404..0d7368d43619 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -154,7 +154,7 @@ static ssize_t sysfs_bin_read(struct file *file, char __user *userbuf,
 			      size_t bytes, loff_t *off)
 {
 	struct sysfs_open_file *of = sysfs_of(file);
-	struct bin_attribute *battr = of->sd->s_bin_attr.bin_attr;
+	struct bin_attribute *battr = of->sd->s_attr.bin_attr;
 	struct kobject *kobj = of->sd->s_parent->s_dir.kobj;
 	loff_t size = file_inode(file)->i_size;
 	int count = min_t(size_t, bytes, PAGE_SIZE);
@@ -236,7 +236,7 @@ static int flush_write_buffer(struct sysfs_open_file *of, char *buf, loff_t off,
 	}
 
 	if (sysfs_is_bin(of->sd)) {
-		struct bin_attribute *battr = of->sd->s_bin_attr.bin_attr;
+		struct bin_attribute *battr = of->sd->s_attr.bin_attr;
 
 		rc = -EIO;
 		if (battr->write)
@@ -466,7 +466,7 @@ static const struct vm_operations_struct sysfs_bin_vm_ops = {
 static int sysfs_bin_mmap(struct file *file, struct vm_area_struct *vma)
 {
 	struct sysfs_open_file *of = sysfs_of(file);
-	struct bin_attribute *battr = of->sd->s_bin_attr.bin_attr;
+	struct bin_attribute *battr = of->sd->s_attr.bin_attr;
 	struct kobject *kobj = of->sd->s_parent->s_dir.kobj;
 	int rc;
 
@@ -618,7 +618,7 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
 		return -ENODEV;
 
 	if (sysfs_is_bin(attr_sd)) {
-		struct bin_attribute *battr = attr_sd->s_bin_attr.bin_attr;
+		struct bin_attribute *battr = attr_sd->s_attr.bin_attr;
 
 		has_read = battr->read || battr->mmap;
 		has_write = battr->write || battr->mmap;
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index 2cb1b6b8ccbc..825c55607af8 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -258,7 +258,7 @@ static void sysfs_init_inode(struct sysfs_dirent *sd, struct inode *inode)
 		inode->i_fop = &sysfs_file_operations;
 		break;
 	case SYSFS_KOBJ_BIN_ATTR:
-		bin_attr = sd->s_bin_attr.bin_attr;
+		bin_attr = sd->s_attr.bin_attr;
 		inode->i_size = bin_attr->size;
 		inode->i_fop = &sysfs_bin_operations;
 		break;
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index 94ac8fa34dd4..c095d952f3a5 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -29,15 +29,13 @@ struct sysfs_elem_symlink {
 };
 
 struct sysfs_elem_attr {
-	struct attribute	*attr;
+	union {
+		struct attribute	*attr;
+		struct bin_attribute	*bin_attr;
+	};
 	struct sysfs_open_dirent *open;
 };
 
-struct sysfs_elem_bin_attr {
-	struct bin_attribute	*bin_attr;
-	struct hlist_head	buffers;
-};
-
 struct sysfs_inode_attrs {
 	struct iattr	ia_iattr;
 	void		*ia_secdata;
@@ -74,7 +72,6 @@ struct sysfs_dirent {
 		struct sysfs_elem_dir		s_dir;
 		struct sysfs_elem_symlink	s_symlink;
 		struct sysfs_elem_attr		s_attr;
-		struct sysfs_elem_bin_attr	s_bin_attr;
 	};
 
 	unsigned short		s_flags;
-- 
cgit 


From 672f76a81ad524359e761d7c863d24aec58e23c5 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Thu, 24 Oct 2013 11:49:08 -0400
Subject: sysfs: honor bin_attr.attr.ignore_lockdep

ignore_lockdep is currently honored only for regular files.  There's
no reason to ignore it for bin files.  Update sysfs_ignore_lockdep()
so that bin_attr.attr.ignore_lockdep works too.

While this doesn't have any in-kernel user, this unifies the behaviors
between regular and bin files and will help later changes.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/sysfs.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index c095d952f3a5..bdce8458af3b 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -114,7 +114,9 @@ do {								\
 /* Test for attributes that want to ignore lockdep for read-locking */
 static inline bool sysfs_ignore_lockdep(struct sysfs_dirent *sd)
 {
-	return sysfs_type(sd) == SYSFS_KOBJ_ATTR &&
+	int type = sysfs_type(sd);
+
+	return (type == SYSFS_KOBJ_ATTR || type == SYSFS_KOBJ_BIN_ATTR) &&
 		sd->s_attr.attr->ignore_lockdep;
 }
 
-- 
cgit 


From baa97cb50724e72ece05a7cead6533a9658ddf79 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Thu, 24 Oct 2013 11:49:09 -0400
Subject: sysfs: remove unused sysfs_get_dentry() prototype

sysfs_get_dentry() has been gone for years now.  Remove the left-over
prototype.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/sysfs.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index bdce8458af3b..e0753e5eff41 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -165,7 +165,6 @@ extern const struct dentry_operations sysfs_dentry_ops;
 extern const struct file_operations sysfs_dir_operations;
 extern const struct inode_operations sysfs_dir_inode_operations;
 
-struct dentry *sysfs_get_dentry(struct sysfs_dirent *sd);
 struct sysfs_dirent *sysfs_get_active(struct sysfs_dirent *sd);
 void sysfs_put_active(struct sysfs_dirent *sd);
 void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt);
-- 
cgit 


From 7eed6ecb0785681892ab1fe47188fc981241cfd0 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Thu, 24 Oct 2013 11:49:10 -0400
Subject: sysfs: move sysfs_hash_and_remove() to fs/sysfs/dir.c

Most removal related logic is implemented in fs/sysfs/dir.c.  Move
sysfs_hash_and_remove() to fs/sysfs/dir.c so that __sysfs_remove()
doesn't have to be public.

This is pure relocation.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/dir.c   | 38 +++++++++++++++++++++++++++++++++++++-
 fs/sysfs/inode.c | 26 --------------------------
 fs/sysfs/sysfs.h |  5 ++---
 3 files changed, 39 insertions(+), 30 deletions(-)

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index eab59de47556..486238d06021 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -813,7 +813,8 @@ static struct sysfs_dirent *sysfs_next_descendant_post(struct sysfs_dirent *pos,
 	return pos->s_parent;
 }
 
-void __sysfs_remove(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd)
+static void __sysfs_remove(struct sysfs_addrm_cxt *acxt,
+			   struct sysfs_dirent *sd)
 {
 	struct sysfs_dirent *pos, *next;
 
@@ -846,6 +847,41 @@ void sysfs_remove(struct sysfs_dirent *sd)
 	sysfs_addrm_finish(&acxt);
 }
 
+/**
+ * sysfs_hash_and_remove - find a sysfs_dirent by name and remove it
+ * @dir_sd: parent of the target
+ * @name: name of the sysfs_dirent to remove
+ * @ns: namespace tag of the sysfs_dirent to remove
+ *
+ * Look for the sysfs_dirent with @name and @ns under @dir_sd and remove
+ * it.  Returns 0 on success, -ENOENT if such entry doesn't exist.
+ */
+int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const char *name,
+			  const void *ns)
+{
+	struct sysfs_addrm_cxt acxt;
+	struct sysfs_dirent *sd;
+
+	if (!dir_sd) {
+		WARN(1, KERN_WARNING "sysfs: can not remove '%s', no directory\n",
+			name);
+		return -ENOENT;
+	}
+
+	sysfs_addrm_start(&acxt);
+
+	sd = sysfs_find_dirent(dir_sd, name, ns);
+	if (sd)
+		__sysfs_remove(&acxt, sd);
+
+	sysfs_addrm_finish(&acxt);
+
+	if (sd)
+		return 0;
+	else
+		return -ENOENT;
+}
+
 /**
  *	sysfs_remove_dir - remove an object's directory.
  *	@kobj:	object.
diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c
index 825c55607af8..1750f790af3b 100644
--- a/fs/sysfs/inode.c
+++ b/fs/sysfs/inode.c
@@ -314,32 +314,6 @@ void sysfs_evict_inode(struct inode *inode)
 	sysfs_put(sd);
 }
 
-int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const char *name,
-			  const void *ns)
-{
-	struct sysfs_addrm_cxt acxt;
-	struct sysfs_dirent *sd;
-
-	if (!dir_sd) {
-		WARN(1, KERN_WARNING "sysfs: can not remove '%s', no directory\n",
-			name);
-		return -ENOENT;
-	}
-
-	sysfs_addrm_start(&acxt);
-
-	sd = sysfs_find_dirent(dir_sd, name, ns);
-	if (sd)
-		__sysfs_remove(&acxt, sd);
-
-	sysfs_addrm_finish(&acxt);
-
-	if (sd)
-		return 0;
-	else
-		return -ENOENT;
-}
-
 int sysfs_permission(struct inode *inode, int mask)
 {
 	struct sysfs_dirent *sd;
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index e0753e5eff41..8d3dc1ddb546 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -172,8 +172,9 @@ int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd,
 		    struct sysfs_dirent *parent_sd);
 int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd,
 		  struct sysfs_dirent *parent_sd);
-void __sysfs_remove(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd);
 void sysfs_remove(struct sysfs_dirent *sd);
+int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const char *name,
+			  const void *ns);
 void sysfs_addrm_finish(struct sysfs_addrm_cxt *acxt);
 
 struct sysfs_dirent *sysfs_find_dirent(struct sysfs_dirent *parent_sd,
@@ -218,8 +219,6 @@ int sysfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
 		  struct kstat *stat);
 int sysfs_setxattr(struct dentry *dentry, const char *name, const void *value,
 		   size_t size, int flags);
-int sysfs_hash_and_remove(struct sysfs_dirent *dir_sd, const char *name,
-			  const void *ns);
 int sysfs_inode_init(void);
 
 /*
-- 
cgit 


From d1c1459e45944e336a968acce1e459c9effcde47 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Thu, 24 Oct 2013 11:49:11 -0400
Subject: sysfs: separate out dup filename warning into a separate function

Separate out sysfs_warn_dup() out of sysfs_add_one().  This will help
separating out the core sysfs functionalities into kernfs so that it
can be used by non-sysfs users too.

This doesn't make any functional changes.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/dir.c   | 30 +++++++++++++++++++-----------
 fs/sysfs/sysfs.h |  1 +
 2 files changed, 20 insertions(+), 11 deletions(-)

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 486238d06021..de47ed32d5c7 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -470,6 +470,23 @@ static char *sysfs_pathname(struct sysfs_dirent *sd, char *path)
 	return path;
 }
 
+void sysfs_warn_dup(struct sysfs_dirent *parent, const char *name)
+{
+	char *path;
+
+	path = kzalloc(PATH_MAX, GFP_KERNEL);
+	if (path) {
+		sysfs_pathname(parent, path);
+		strlcat(path, "/", PATH_MAX);
+		strlcat(path, name, PATH_MAX);
+	}
+
+	WARN(1, KERN_WARNING "sysfs: cannot create duplicate filename '%s'\n",
+	     path ? path : name);
+
+	kfree(path);
+}
+
 /**
  *	sysfs_add_one - add sysfs_dirent to parent
  *	@acxt: addrm context to use
@@ -497,18 +514,9 @@ int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd,
 	int ret;
 
 	ret = __sysfs_add_one(acxt, sd, parent_sd);
-	if (ret == -EEXIST) {
-		char *path = kzalloc(PATH_MAX, GFP_KERNEL);
-		WARN(1, KERN_WARNING
-		     "sysfs: cannot create duplicate filename '%s'\n",
-		     (path == NULL) ? sd->s_name
-				    : (sysfs_pathname(parent_sd, path),
-				       strlcat(path, "/", PATH_MAX),
-				       strlcat(path, sd->s_name, PATH_MAX),
-				       path));
-		kfree(path);
-	}
 
+	if (ret == -EEXIST)
+		sysfs_warn_dup(parent_sd, sd->s_name);
 	return ret;
 }
 
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index 8d3dc1ddb546..05d063fe69c7 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -168,6 +168,7 @@ extern const struct inode_operations sysfs_dir_inode_operations;
 struct sysfs_dirent *sysfs_get_active(struct sysfs_dirent *sd);
 void sysfs_put_active(struct sysfs_dirent *sd);
 void sysfs_addrm_start(struct sysfs_addrm_cxt *acxt);
+void sysfs_warn_dup(struct sysfs_dirent *parent, const char *name);
 int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd,
 		    struct sysfs_dirent *parent_sd);
 int sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd,
-- 
cgit 


From eb36309a9db9e9e8e8e0813ebbe3a14a58969351 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 21 Oct 2013 14:36:43 +0530
Subject: PCI: exynos: Remove redundant of_match_ptr

This driver is DT only.  Hence of_match_ptr is not required.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
---
 drivers/pci/host/pci-exynos.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/host/pci-exynos.c b/drivers/pci/host/pci-exynos.c
index 89804728bd5b..24beed38ddc7 100644
--- a/drivers/pci/host/pci-exynos.c
+++ b/drivers/pci/host/pci-exynos.c
@@ -653,7 +653,7 @@ static struct platform_driver exynos_pcie_driver = {
 	.driver = {
 		.name	= "exynos-pcie",
 		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(exynos_pcie_of_match),
+		.of_match_table = exynos_pcie_of_match,
 	},
 };
 
-- 
cgit 


From 017f10e1c78e14d48be7a28f2c33a32dae15fee5 Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Tue, 22 Oct 2013 22:12:18 -0700
Subject: PCI: imx6: Increase link startup timeout

A longer link startup timeout is required when certain PCI switches are
attached to the root complex.  This was tested with a Pericom switch
and a PLX switch.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Tim Harvey <tharvey@gateworks.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
---
 drivers/pci/host/pci-imx6.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/host/pci-imx6.c b/drivers/pci/host/pci-imx6.c
index 7426ad961b81..baafb397a698 100644
--- a/drivers/pci/host/pci-imx6.c
+++ b/drivers/pci/host/pci-imx6.c
@@ -318,7 +318,7 @@ static void imx6_pcie_host_init(struct pcie_port *pp)
 	while (!dw_pcie_link_up(pp)) {
 		usleep_range(100, 1000);
 		count++;
-		if (count >= 10) {
+		if (count >= 200) {
 			dev_err(pp->dev, "phy link never came up\n");
 			dev_dbg(pp->dev,
 				"DEBUG_R0: 0x%08x, DEBUG_R1: 0x%08x\n",
-- 
cgit 


From b70cd1c1a95ab2a50ffc5e1070c9e90931b92261 Mon Sep 17 00:00:00 2001
From: Leigh Brown <leigh@solinno.co.uk>
Date: Tue, 29 Oct 2013 09:33:31 +0000
Subject: net: mvmdio: make orion_mdio_wait_ready consistent

Amend orion_mdio_wait_ready so that the same timeout is used when
polling or using wait_event_timeout.  Set the timeout to 1ms.

Replace udelay with usleep_range to avoid a busy loop, and set the
polling interval range as 45us to 55us, so that the first sleep
will be enough in almost all cases.

Generate the same log message at timeout when polling or using
wait_event_timeout.

Signed-off-by: Leigh Brown <leigh@solinno.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/marvell/mvmdio.c | 52 ++++++++++++++++++++---------------
 1 file changed, 30 insertions(+), 22 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
index e2f662660313..971a4c1bbbaa 100644
--- a/drivers/net/ethernet/marvell/mvmdio.c
+++ b/drivers/net/ethernet/marvell/mvmdio.c
@@ -44,6 +44,15 @@
 #define  MVMDIO_ERR_INT_SMI_DONE	   0x00000010
 #define MVMDIO_ERR_INT_MASK		   0x0080
 
+/*
+ * SMI Timeout measurements:
+ * - Kirkwood 88F6281 (Globalscale Dreamplug): 45us to 95us (Interrupt)
+ * - Armada 370       (Globalscale Mirabox):   41us to 43us (Polled)
+ */
+#define MVMDIO_SMI_TIMEOUT		   1000 /* 1000us = 1ms */
+#define MVMDIO_SMI_POLL_INTERVAL_MIN	   45
+#define MVMDIO_SMI_POLL_INTERVAL_MAX	   55
+
 struct orion_mdio_dev {
 	struct mutex lock;
 	void __iomem *regs;
@@ -68,34 +77,33 @@ static int orion_mdio_smi_is_done(struct orion_mdio_dev *dev)
 static int orion_mdio_wait_ready(struct mii_bus *bus)
 {
 	struct orion_mdio_dev *dev = bus->priv;
-	int count;
+	unsigned long timeout = usecs_to_jiffies(MVMDIO_SMI_TIMEOUT);
+	unsigned long end = jiffies + timeout;
+	int timedout = 0;
 
-	if (dev->err_interrupt <= 0) {
-		count = 0;
-		while (1) {
-			if (orion_mdio_smi_is_done(dev))
-				break;
+	while (1) {
+	        if (orion_mdio_smi_is_done(dev))
+			return 0;
+	        else if (timedout)
+			break;
 
-			if (count > 100) {
-				dev_err(bus->parent,
-					"Timeout: SMI busy for too long\n");
-				return -ETIMEDOUT;
-			}
+	        if (dev->err_interrupt <= 0) {
+			usleep_range(MVMDIO_SMI_POLL_INTERVAL_MIN,
+				     MVMDIO_SMI_POLL_INTERVAL_MAX);
 
-			udelay(10);
-			count++;
-		}
-	} else {
-		if (!orion_mdio_smi_is_done(dev)) {
+			if (time_is_before_jiffies(end))
+				++timedout;
+	        } else {
 			wait_event_timeout(dev->smi_busy_wait,
-				orion_mdio_smi_is_done(dev),
-				msecs_to_jiffies(100));
-			if (!orion_mdio_smi_is_done(dev))
-				return -ETIMEDOUT;
-		}
+				           orion_mdio_smi_is_done(dev),
+				           timeout);
+
+			++timedout;
+	        }
 	}
 
-	return 0;
+	dev_err(bus->parent, "Timeout: SMI busy for too long\n");
+	return  -ETIMEDOUT;
 }
 
 static int orion_mdio_read(struct mii_bus *bus, int mii_id,
-- 
cgit 


From 839f46bb4cf73d20d76195d4f2de34801180ae7c Mon Sep 17 00:00:00 2001
From: Leigh Brown <leigh@solinno.co.uk>
Date: Tue, 29 Oct 2013 09:33:32 +0000
Subject: net: mvmdio: orion_mdio_ready: remove manual poll

Replace manual poll of MVMDIO_SMI_READ_VALID with a call to
orion_mdio_wait_ready.  This ensures a consistent timeout,
eliminates a busy loop, and allows for use of interrupts on
systems that support them.

Signed-off-by: Leigh Brown <leigh@solinno.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/marvell/mvmdio.c | 34 +++++++++++++---------------------
 1 file changed, 13 insertions(+), 21 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
index 971a4c1bbbaa..e3898b3c91ad 100644
--- a/drivers/net/ethernet/marvell/mvmdio.c
+++ b/drivers/net/ethernet/marvell/mvmdio.c
@@ -110,43 +110,35 @@ static int orion_mdio_read(struct mii_bus *bus, int mii_id,
 			   int regnum)
 {
 	struct orion_mdio_dev *dev = bus->priv;
-	int count;
 	u32 val;
 	int ret;
 
 	mutex_lock(&dev->lock);
 
 	ret = orion_mdio_wait_ready(bus);
-	if (ret < 0) {
-		mutex_unlock(&dev->lock);
-		return ret;
-	}
+	if (ret < 0)
+		goto out;
 
 	writel(((mii_id << MVMDIO_SMI_PHY_ADDR_SHIFT) |
 		(regnum << MVMDIO_SMI_PHY_REG_SHIFT)  |
 		MVMDIO_SMI_READ_OPERATION),
 	       dev->regs);
 
-	/* Wait for the value to become available */
-	count = 0;
-	while (1) {
-		val = readl(dev->regs);
-		if (val & MVMDIO_SMI_READ_VALID)
-			break;
-
-		if (count > 100) {
-			dev_err(bus->parent, "Timeout when reading PHY\n");
-			mutex_unlock(&dev->lock);
-			return -ETIMEDOUT;
-		}
+	ret = orion_mdio_wait_ready(bus);
+	if (ret < 0)
+		goto out;
 
-		udelay(10);
-		count++;
+	val = readl(dev->regs);
+	if (!(val & MVMDIO_SMI_READ_VALID)) {
+		dev_err(bus->parent, "SMI bus read not valid\n");
+		ret = -ENODEV;
+		goto out;
 	}
 
+	ret = val & 0xFFFF;
+out:
 	mutex_unlock(&dev->lock);
-
-	return val & 0xFFFF;
+	return ret;
 }
 
 static int orion_mdio_write(struct mii_bus *bus, int mii_id,
-- 
cgit 


From 526edcf56759142c1c250d2d4c55db9f25be644b Mon Sep 17 00:00:00 2001
From: Leigh Brown <leigh@solinno.co.uk>
Date: Tue, 29 Oct 2013 09:33:33 +0000
Subject: net: mvmdio: slight optimisation of orion_mdio_write

Make only a single call to mutex_unlock in orion_mdio_write.

Signed-off-by: Leigh Brown <leigh@solinno.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/marvell/mvmdio.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
index e3898b3c91ad..0cfa0c860bc3 100644
--- a/drivers/net/ethernet/marvell/mvmdio.c
+++ b/drivers/net/ethernet/marvell/mvmdio.c
@@ -150,10 +150,8 @@ static int orion_mdio_write(struct mii_bus *bus, int mii_id,
 	mutex_lock(&dev->lock);
 
 	ret = orion_mdio_wait_ready(bus);
-	if (ret < 0) {
-		mutex_unlock(&dev->lock);
-		return ret;
-	}
+	if (ret < 0)
+		goto out;
 
 	writel(((mii_id << MVMDIO_SMI_PHY_ADDR_SHIFT) |
 		(regnum << MVMDIO_SMI_PHY_REG_SHIFT)  |
@@ -161,9 +159,9 @@ static int orion_mdio_write(struct mii_bus *bus, int mii_id,
 		(value << MVMDIO_SMI_DATA_SHIFT)),
 	       dev->regs);
 
+out:
 	mutex_unlock(&dev->lock);
-
-	return 0;
+	return ret;
 }
 
 static int orion_mdio_reset(struct mii_bus *bus)
-- 
cgit 


From d4a0acb8ed9c15c2ca82389a30790f66911e640d Mon Sep 17 00:00:00 2001
From: Leigh Brown <leigh@solinno.co.uk>
Date: Tue, 29 Oct 2013 09:33:34 +0000
Subject: net: mvmdio: doc: mvmdio now used by mv643xx_eth

Amend the documentation in the mvmdio driver to note the fact
that it is now used by both the mvneta and mv643xx_eth drivers.

Signed-off-by: Leigh Brown <leigh@solinno.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/marvell/mvmdio.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/marvell/mvmdio.c b/drivers/net/ethernet/marvell/mvmdio.c
index 0cfa0c860bc3..7354960b583b 100644
--- a/drivers/net/ethernet/marvell/mvmdio.c
+++ b/drivers/net/ethernet/marvell/mvmdio.c
@@ -4,11 +4,9 @@
  * Since the MDIO interface of Marvell network interfaces is shared
  * between all network interfaces, having a single driver allows to
  * handle concurrent accesses properly (you may have four Ethernet
- * ports, but they in fact share the same SMI interface to access the
- * MDIO bus). Moreover, this MDIO interface code is similar between
- * the mv643xx_eth driver and the mvneta driver. For now, it is only
- * used by the mvneta driver, but it could later be used by the
- * mv643xx_eth driver as well.
+ * ports, but they in fact share the same SMI interface to access
+ * the MDIO bus). This driver is currently used by the mvneta and
+ * mv643xx_eth drivers.
  *
  * Copyright (C) 2012 Marvell
  *
-- 
cgit 


From 9ba205c384fc27cc7ff761744b012f1956a7e3e4 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Tue, 22 Oct 2013 20:55:46 -0600
Subject: frv/PCI: Remove pcibios_last_bus

pcibios_last_bus was apparently copied from x86.  On FR-V, it is
statically initialized to -1 and never changed unless the user boots
with "pci=lastbus=<X>".  I doubt that option is used on FR-V, so this
patch removes all the code related to pcibios_last_bus.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 arch/frv/mb93090-mb00/pci-frv.h |  1 -
 arch/frv/mb93090-mb00/pci-vdk.c | 36 ------------------------------------
 2 files changed, 37 deletions(-)

diff --git a/arch/frv/mb93090-mb00/pci-frv.h b/arch/frv/mb93090-mb00/pci-frv.h
index 76c4e73d643d..a7e487fe76ed 100644
--- a/arch/frv/mb93090-mb00/pci-frv.h
+++ b/arch/frv/mb93090-mb00/pci-frv.h
@@ -30,7 +30,6 @@ void pcibios_resource_survey(void);
 
 /* pci-vdk.c */
 
-extern int __nongpreldata pcibios_last_bus;
 extern struct pci_ops *__nongpreldata pci_root_ops;
 
 /* pci-irq.c */
diff --git a/arch/frv/mb93090-mb00/pci-vdk.c b/arch/frv/mb93090-mb00/pci-vdk.c
index deb67843693c..efa5d65b0007 100644
--- a/arch/frv/mb93090-mb00/pci-vdk.c
+++ b/arch/frv/mb93090-mb00/pci-vdk.c
@@ -25,7 +25,6 @@
 
 unsigned int __nongpreldata pci_probe = 1;
 
-int  __nongpreldata pcibios_last_bus = -1;
 struct pci_ops *__nongpreldata pci_root_ops;
 
 /*
@@ -219,37 +218,6 @@ static struct pci_ops * __init pci_check_direct(void)
 	return NULL;
 }
 
-/*
- * Discover remaining PCI buses in case there are peer host bridges.
- * We use the number of last PCI bus provided by the PCI BIOS.
- */
-static void __init pcibios_fixup_peer_bridges(void)
-{
-	struct pci_bus bus;
-	struct pci_dev dev;
-	int n;
-	u16 l;
-
-	if (pcibios_last_bus <= 0 || pcibios_last_bus >= 0xff)
-		return;
-	printk("PCI: Peer bridge fixup\n");
-	for (n=0; n <= pcibios_last_bus; n++) {
-		if (pci_find_bus(0, n))
-			continue;
-		bus.number = n;
-		bus.ops = pci_root_ops;
-		dev.bus = &bus;
-		for(dev.devfn=0; dev.devfn<256; dev.devfn += 8)
-			if (!pci_read_config_word(&dev, PCI_VENDOR_ID, &l) &&
-			    l != 0x0000 && l != 0xffff) {
-				printk("Found device at %02x:%02x [%04x]\n", n, dev.devfn, l);
-				printk("PCI: Discovered peer bus %02x\n", n);
-				pci_scan_bus(n, pci_root_ops, NULL);
-				break;
-			}
-	}
-}
-
 /*
  * Exceptions for specific devices. Usually work-arounds for fatal design flaws.
  */
@@ -418,7 +386,6 @@ int __init pcibios_init(void)
 	pci_scan_root_bus(NULL, 0, pci_root_ops, NULL, &resources);
 
 	pcibios_irq_init();
-	pcibios_fixup_peer_bridges();
 	pcibios_fixup_irqs();
 	pcibios_resource_survey();
 
@@ -432,9 +399,6 @@ char * __init pcibios_setup(char *str)
 	if (!strcmp(str, "off")) {
 		pci_probe = 0;
 		return NULL;
-	} else if (!strncmp(str, "lastbus=", 8)) {
-		pcibios_last_bus = simple_strtol(str+8, NULL, 0);
-		return NULL;
 	}
 	return str;
 }
-- 
cgit 


From 004bd069f876816f5f9023e8b1498753bca103fa Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Tue, 22 Oct 2013 21:06:20 -0600
Subject: mn10300/PCI: Remove useless pcibios_last_bus

pcibios_last_bus was apparently copied from x86.  On mn10300, it is
statically initialized to -1 and may be set with the "pci=lastbus=<X>"
boot option, but it is never tested.  This patch removes everything
related to pcibios_last_bus.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 arch/mn10300/unit-asb2305/pci-asb2305.h | 1 -
 arch/mn10300/unit-asb2305/pci.c         | 5 -----
 2 files changed, 6 deletions(-)

diff --git a/arch/mn10300/unit-asb2305/pci-asb2305.h b/arch/mn10300/unit-asb2305/pci-asb2305.h
index 7fa66a0e4624..9e17aca5a2a1 100644
--- a/arch/mn10300/unit-asb2305/pci-asb2305.h
+++ b/arch/mn10300/unit-asb2305/pci-asb2305.h
@@ -35,7 +35,6 @@ extern void pcibios_resource_survey(void);
 
 /* pci.c */
 
-extern int pcibios_last_bus;
 extern struct pci_ops *pci_root_ops;
 
 extern struct irq_routing_table *pcibios_get_irq_routing_table(void);
diff --git a/arch/mn10300/unit-asb2305/pci.c b/arch/mn10300/unit-asb2305/pci.c
index e37fac0461f3..6b4339f8c9c2 100644
--- a/arch/mn10300/unit-asb2305/pci.c
+++ b/arch/mn10300/unit-asb2305/pci.c
@@ -24,7 +24,6 @@
 
 unsigned int pci_probe = 1;
 
-int pcibios_last_bus = -1;
 struct pci_ops *pci_root_ops;
 
 /*
@@ -392,10 +391,6 @@ char *__init pcibios_setup(char *str)
 	if (!strcmp(str, "off")) {
 		pci_probe = 0;
 		return NULL;
-
-	} else if (!strncmp(str, "lastbus=", 8)) {
-		pcibios_last_bus = simple_strtol(str+8, NULL, 0);
-		return NULL;
 	}
 
 	return str;
-- 
cgit 


From 0394cb192db4397753046775a8caa736397737b5 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Wed, 16 Oct 2013 12:32:53 -0600
Subject: PCI: Report pci_pme_active() kmalloc failure

Previously, if kmalloc() failed, we claimed "PME# enabled" in dmesg,
even though we didn't add the device to the pci_pme_list.  This prints
a more correct warning.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/pci/pci.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index ad7fc72a40a0..36cc8d5ae8b2 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1638,8 +1638,10 @@ void pci_pme_active(struct pci_dev *dev, bool enable)
 		if (enable) {
 			pme_dev = kmalloc(sizeof(struct pci_pme_device),
 					  GFP_KERNEL);
-			if (!pme_dev)
-				goto out;
+			if (!pme_dev) {
+				dev_warn(&dev->dev, "can't enable PME#\n");
+				return;
+			}
 			pme_dev->dev = dev;
 			mutex_lock(&pci_pme_list_mutex);
 			list_add(&pme_dev->list, &pci_pme_list);
@@ -1660,7 +1662,6 @@ void pci_pme_active(struct pci_dev *dev, bool enable)
 		}
 	}
 
-out:
 	dev_dbg(&dev->dev, "PME# %s\n", enable ? "enabled" : "disabled");
 }
 
-- 
cgit 


From 34411a69a4925dd6de8e1069956f59d758da3ce9 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Wed, 30 Oct 2013 00:00:30 +0100
Subject: ACPI / processor: Do not request ACPI cpufreq module directly

Function acpi_processor_load_module() used by the ACPI processor
driver can only really work if the acpi-cpufreq module is available
when acpi_processor_start() is executed which usually is not the case
for systems loading the processor driver module from an initramfs.

Moreover, that used to be a hackish workaround for module autoloading
issues, but udev loads acpi-cpufreq just fine nowadays, so that
function isn't really necessary any more.  For this reason, drop
acpi_processor_load_module() entirely.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/processor_driver.c  |  1 -
 drivers/acpi/processor_perflib.c | 22 ----------------------
 include/acpi/processor.h         |  1 -
 3 files changed, 24 deletions(-)

diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index 40fc773ab6e0..146ab7e2b81d 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -171,7 +171,6 @@ static int __acpi_processor_start(struct acpi_device *device)
 
 #ifdef CONFIG_CPU_FREQ
 	acpi_processor_ppc_has_changed(pr, 0);
-	acpi_processor_load_module(pr);
 #endif
 	acpi_processor_get_throttling_info(pr);
 
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 51d7948611da..60a7c28fc167 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -235,28 +235,6 @@ void acpi_processor_ppc_exit(void)
 	acpi_processor_ppc_status &= ~PPC_REGISTERED;
 }
 
-/*
- * Do a quick check if the systems looks like it should use ACPI
- * cpufreq. We look at a _PCT method being available, but don't
- * do a whole lot of sanity checks.
- */
-void acpi_processor_load_module(struct acpi_processor *pr)
-{
-	static int requested;
-	acpi_status status = 0;
-	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
-
-	if (!arch_has_acpi_pdc() || requested)
-		return;
-	status = acpi_evaluate_object(pr->handle, "_PCT", NULL, &buffer);
-	if (!ACPI_FAILURE(status)) {
-		printk(KERN_INFO PREFIX "Requesting acpi_cpufreq\n");
-		request_module_nowait("acpi_cpufreq");
-		requested = 1;
-	}
-	kfree(buffer.pointer);
-}
-
 static int acpi_processor_get_performance_control(struct acpi_processor *pr)
 {
 	int result = 0;
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 7816e45f5d5a..6eb1d3cb5104 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -225,7 +225,6 @@ struct acpi_processor_errata {
 	} piix4;
 };
 
-extern void acpi_processor_load_module(struct acpi_processor *pr);
 extern int acpi_processor_preregister_performance(struct
 						  acpi_processor_performance
 						  __percpu *performance);
-- 
cgit 


From e7e92ec93f218085e37ded8338f717ffd49eed1d Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Tue, 29 Oct 2013 10:34:19 +0000
Subject: ACPI: Fix spelling mistake in error messages

Fix spelling mistake "expecing" --> "expecting"

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/utils.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index fc2cd3284080..6d408bfbbb1d 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -121,7 +121,7 @@ acpi_extract_package(union acpi_object *package,
 				break;
 			default:
 				printk(KERN_WARNING PREFIX "Invalid package element"
-					      " [%d]: got number, expecing"
+					      " [%d]: got number, expecting"
 					      " [%c]\n",
 					      i, format_string[i]);
 				return AE_BAD_DATA;
@@ -148,7 +148,7 @@ acpi_extract_package(union acpi_object *package,
 			default:
 				printk(KERN_WARNING PREFIX "Invalid package element"
 					      " [%d] got string/buffer,"
-					      " expecing [%c]\n",
+					      " expecting [%c]\n",
 					      i, format_string[i]);
 				return AE_BAD_DATA;
 				break;
-- 
cgit 


From 3eae13671716492f3bcde270115407185e9c69fd Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Thu, 24 Oct 2013 15:42:33 -0600
Subject: device: Make dev_WARN/dev_WARN_ONCE print device as well as driver
 name

dev_WARN() and dev_WARN_ONCE() are annoying because (1) they include
only the driver name, not the device name, and (2) they print a spurious
newline in the middle.  This results in messages like this that are less
useful than they should be:

  [   40.094995] Device pcieport
  disabling already-disabled device

This patch makes them work more like dev_printk().

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/device.h | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/include/linux/device.h b/include/linux/device.h
index 5e44cff5bced..b025925df7f7 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -1170,16 +1170,15 @@ do {									\
 #endif
 
 /*
- * dev_WARN*() acts like dev_printk(), but with the key difference
- * of using a WARN/WARN_ON to get the message out, including the
- * file/line information and a backtrace.
+ * dev_WARN*() acts like dev_printk(), but with the key difference of
+ * using WARN/WARN_ONCE to include file/line information and a backtrace.
  */
 #define dev_WARN(dev, format, arg...) \
-	WARN(1, "Device: %s\n" format, dev_driver_string(dev), ## arg);
+	WARN(1, "%s %s: " format, dev_driver_string(dev), dev_name(dev), ## arg);
 
 #define dev_WARN_ONCE(dev, condition, format, arg...) \
-	WARN_ONCE(condition, "Device %s\n" format, \
-			dev_driver_string(dev), ## arg)
+	WARN_ONCE(condition, "%s %s: " format, \
+			dev_driver_string(dev), dev_name(dev), ## arg)
 
 /* Create alias, so I can be autoloaded. */
 #define MODULE_ALIAS_CHARDEV(major,minor) \
-- 
cgit 


From 5e4432d3bd6b5b19e10bb263e7dbe8e74d7cf1c2 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Tue, 29 Oct 2013 23:06:44 +0000
Subject: ARM: fix misplaced arch_virt_to_idmap()

Olof Johansson reported:

In file included from arch/arm/include/asm/page.h:163:0,
                 from include/linux/mm_types.h:16,
                 from include/linux/sched.h:24,
                 from arch/arm/kernel/asm-offsets.c:13:
arch/arm/include/asm/memory.h: In function '__virt_to_idmap':
arch/arm/include/asm/memory.h:300:6: error: 'arch_virt_to_idmap' undeclared (first use in this function)

caused by arch_virt_to_idmap being placed inside a different
preprocessor conditional to its user.  Move it along side its user.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/include/asm/memory.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index 6748d6295a1a..4dd21457ef9d 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -174,7 +174,6 @@
 #define __PV_BITS_31_24	0x81000000
 #define __PV_BITS_7_0	0x81
 
-extern phys_addr_t (*arch_virt_to_idmap) (unsigned long x);
 extern u64 __pv_phys_offset;
 extern u64 __pv_offset;
 extern void fixup_pv_table(const void *, unsigned long);
@@ -290,6 +289,8 @@ static inline void *phys_to_virt(phys_addr_t x)
 #define __va(x)			((void *)__phys_to_virt((phys_addr_t)(x)))
 #define pfn_to_kaddr(pfn)	__va((pfn) << PAGE_SHIFT)
 
+extern phys_addr_t (*arch_virt_to_idmap)(unsigned long x);
+
 /*
  * These are for systems that have a hardware interconnect supported alias of
  * physical memory for idmap purposes.  Most cases should leave these
-- 
cgit 


From 7d196ac303652588c60350f0a581d71e2e7b1a50 Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Thu, 24 Oct 2013 09:25:39 -0700
Subject: lkdtm: adjust recursion size to avoid warnings

When CONFIG_FRAME_WARN is set low (e.g. some ARM builds), the hard-coded
stack buffer size used for kernel stack over run testing triggers build
warnings. Instead, avoid the warning by recalcuating the buffer size and
recursion count needed to trigger the test. Also uses the recursion counter
indirectly to avoid changing the parameter during the test.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/lkdtm.c | 30 ++++++++++++++++++++----------
 1 file changed, 20 insertions(+), 10 deletions(-)

diff --git a/drivers/misc/lkdtm.c b/drivers/misc/lkdtm.c
index 9cbd0370ca44..482344242f94 100644
--- a/drivers/misc/lkdtm.c
+++ b/drivers/misc/lkdtm.c
@@ -49,8 +49,19 @@
 #include <linux/ide.h>
 #endif
 
+/*
+ * Make sure our attempts to over run the kernel stack doesn't trigger
+ * a compiler warning when CONFIG_FRAME_WARN is set. Then make sure we
+ * recurse past the end of THREAD_SIZE by default.
+ */
+#if defined(CONFIG_FRAME_WARN) && (CONFIG_FRAME_WARN > 0)
+#define REC_STACK_SIZE (CONFIG_FRAME_WARN / 2)
+#else
+#define REC_STACK_SIZE (THREAD_SIZE / 8)
+#endif
+#define REC_NUM_DEFAULT ((THREAD_SIZE / REC_STACK_SIZE) * 2)
+
 #define DEFAULT_COUNT 10
-#define REC_NUM_DEFAULT 10
 #define EXEC_SIZE 64
 
 enum cname {
@@ -140,8 +151,7 @@ static DEFINE_SPINLOCK(lock_me_up);
 static u8 data_area[EXEC_SIZE];
 
 module_param(recur_count, int, 0644);
-MODULE_PARM_DESC(recur_count, " Recursion level for the stack overflow test, "\
-				 "default is 10");
+MODULE_PARM_DESC(recur_count, " Recursion level for the stack overflow test");
 module_param(cpoint_name, charp, 0444);
 MODULE_PARM_DESC(cpoint_name, " Crash Point, where kernel is to be crashed");
 module_param(cpoint_type, charp, 0444);
@@ -280,16 +290,16 @@ static int lkdtm_parse_commandline(void)
 	return -EINVAL;
 }
 
-static int recursive_loop(int a)
+static int recursive_loop(int remaining)
 {
-	char buf[1024];
+	char buf[REC_STACK_SIZE];
 
-	memset(buf,0xFF,1024);
-	recur_count--;
-	if (!recur_count)
+	/* Make sure compiler does not optimize this away. */
+	memset(buf, (remaining & 0xff) | 0x1, REC_STACK_SIZE);
+	if (!remaining)
 		return 0;
 	else
-        	return recursive_loop(a);
+		return recursive_loop(remaining - 1);
 }
 
 static void do_nothing(void)
@@ -333,7 +343,7 @@ static void lkdtm_do_action(enum ctype which)
 			;
 		break;
 	case CT_OVERFLOW:
-		(void) recursive_loop(0);
+		(void) recursive_loop(recur_count);
 		break;
 	case CT_CORRUPT_STACK:
 		corrupt_stack();
-- 
cgit 


From 9ae113ce5faf1c74af1ee71b5ef7d04b6b06b063 Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Thu, 24 Oct 2013 09:25:57 -0700
Subject: lkdtm: add tests for additional page permissions

Testing execution and access of userspace from the kernel is needed for
validating things like Intel's SMEP and SMAP protections. Additionally,
add an explicit test for validating that RO page permissions have been
set for the RO data area.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/lkdtm.c | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)

diff --git a/drivers/misc/lkdtm.c b/drivers/misc/lkdtm.c
index 482344242f94..a2edb2ee0921 100644
--- a/drivers/misc/lkdtm.c
+++ b/drivers/misc/lkdtm.c
@@ -44,6 +44,7 @@
 #include <scsi/scsi_cmnd.h>
 #include <linux/debugfs.h>
 #include <linux/vmalloc.h>
+#include <linux/mman.h>
 
 #ifdef CONFIG_IDE
 #include <linux/ide.h>
@@ -97,6 +98,9 @@ enum ctype {
 	CT_EXEC_STACK,
 	CT_EXEC_KMALLOC,
 	CT_EXEC_VMALLOC,
+	CT_EXEC_USERSPACE,
+	CT_ACCESS_USERSPACE,
+	CT_WRITE_RO,
 };
 
 static char* cp_name[] = {
@@ -130,6 +134,9 @@ static char* cp_type[] = {
 	"EXEC_STACK",
 	"EXEC_KMALLOC",
 	"EXEC_VMALLOC",
+	"EXEC_USERSPACE",
+	"ACCESS_USERSPACE",
+	"WRITE_RO",
 };
 
 static struct jprobe lkdtm;
@@ -150,6 +157,8 @@ static DEFINE_SPINLOCK(lock_me_up);
 
 static u8 data_area[EXEC_SIZE];
 
+static const unsigned long rodata = 0xAA55AA55;
+
 module_param(recur_count, int, 0644);
 MODULE_PARM_DESC(recur_count, " Recursion level for the stack overflow test");
 module_param(cpoint_name, charp, 0444);
@@ -323,6 +332,15 @@ static void execute_location(void *dst)
 	func();
 }
 
+static void execute_user_location(void *dst)
+{
+	void (*func)(void) = dst;
+
+	if (copy_to_user(dst, do_nothing, EXEC_SIZE))
+		return;
+	func();
+}
+
 static void lkdtm_do_action(enum ctype which)
 {
 	switch (which) {
@@ -415,6 +433,49 @@ static void lkdtm_do_action(enum ctype which)
 		vfree(vmalloc_area);
 		break;
 	}
+	case CT_EXEC_USERSPACE: {
+		unsigned long user_addr;
+
+		user_addr = vm_mmap(NULL, 0, PAGE_SIZE,
+				    PROT_READ | PROT_WRITE | PROT_EXEC,
+				    MAP_ANONYMOUS | MAP_PRIVATE, 0);
+		if (user_addr >= TASK_SIZE) {
+			pr_warn("Failed to allocate user memory\n");
+			return;
+		}
+		execute_user_location((void *)user_addr);
+		vm_munmap(user_addr, PAGE_SIZE);
+		break;
+	}
+	case CT_ACCESS_USERSPACE: {
+		unsigned long user_addr, tmp;
+		unsigned long *ptr;
+
+		user_addr = vm_mmap(NULL, 0, PAGE_SIZE,
+				    PROT_READ | PROT_WRITE | PROT_EXEC,
+				    MAP_ANONYMOUS | MAP_PRIVATE, 0);
+		if (user_addr >= TASK_SIZE) {
+			pr_warn("Failed to allocate user memory\n");
+			return;
+		}
+
+		ptr = (unsigned long *)user_addr;
+		tmp = *ptr;
+		tmp += 0xc0dec0de;
+		*ptr = tmp;
+
+		vm_munmap(user_addr, PAGE_SIZE);
+
+		break;
+	}
+	case CT_WRITE_RO: {
+		unsigned long *ptr;
+
+		ptr = (unsigned long *)&rodata;
+		*ptr ^= 0xabcd1234;
+
+		break;
+	}
 	case CT_NONE:
 	default:
 		break;
-- 
cgit 


From 4bff7208f332b2b1d7cf1338e50527441283a198 Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Mon, 21 Oct 2013 22:05:38 +0300
Subject: mei: nfc: fix memory leak in error path

The flow may reach the err label without freeing cl and cl_info

cl and cl_info weren't assigned to ndev->cl and cl_info
so they weren't freed in mei_nfc_free called on error path

Cc: <stable@vger.kernel.org> # 3.10+
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/nfc.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/misc/mei/nfc.c b/drivers/misc/mei/nfc.c
index d0c6907dfd92..994ca4aff1a3 100644
--- a/drivers/misc/mei/nfc.c
+++ b/drivers/misc/mei/nfc.c
@@ -485,8 +485,11 @@ int mei_nfc_host_init(struct mei_device *dev)
 	if (ndev->cl_info)
 		return 0;
 
-	cl_info = mei_cl_allocate(dev);
-	cl = mei_cl_allocate(dev);
+	ndev->cl_info = mei_cl_allocate(dev);
+	ndev->cl = mei_cl_allocate(dev);
+
+	cl = ndev->cl;
+	cl_info = ndev->cl_info;
 
 	if (!cl || !cl_info) {
 		ret = -ENOMEM;
@@ -527,10 +530,9 @@ int mei_nfc_host_init(struct mei_device *dev)
 
 	cl->device_uuid = mei_nfc_guid;
 
+
 	list_add_tail(&cl->device_link, &dev->device_list);
 
-	ndev->cl_info = cl_info;
-	ndev->cl = cl;
 	ndev->req_id = 1;
 
 	INIT_WORK(&ndev->init_work, mei_nfc_init);
-- 
cgit 


From f931f4f3f0e2be1a6c5278ab9488652f98ba2f9c Mon Sep 17 00:00:00 2001
From: Alexander Usyskin <alexander.usyskin@intel.com>
Date: Mon, 21 Oct 2013 22:05:43 +0300
Subject: mei: print correct device state during unexpected reset

Move the unexpected state print to the beginning of mei_reset,
thus printing right state.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/init.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/misc/mei/init.c b/drivers/misc/mei/init.c
index c32d45209cc6..f7f3abbe12b6 100644
--- a/drivers/misc/mei/init.c
+++ b/drivers/misc/mei/init.c
@@ -147,6 +147,10 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
 			dev->dev_state != MEI_DEV_POWER_DOWN &&
 			dev->dev_state != MEI_DEV_POWER_UP);
 
+	if (unexpected)
+		dev_warn(&dev->pdev->dev, "unexpected reset: dev_state = %s\n",
+			 mei_dev_state_str(dev->dev_state));
+
 	ret = mei_hw_reset(dev, interrupts_enabled);
 	if (ret) {
 		dev_err(&dev->pdev->dev, "hw reset failed disabling the device\n");
@@ -185,10 +189,6 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
 	dev->rd_msg_hdr = 0;
 	dev->wd_pending = false;
 
-	if (unexpected)
-		dev_warn(&dev->pdev->dev, "unexpected reset: dev_state = %s\n",
-			 mei_dev_state_str(dev->dev_state));
-
 	if (!interrupts_enabled) {
 		dev_dbg(&dev->pdev->dev, "intr not enabled end of reset\n");
 		return;
-- 
cgit 


From df667a1a2c6bf828c5959a0ba15bcf987a9d17fe Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Mon, 21 Oct 2013 22:05:41 +0300
Subject: mei: mei_cl_link remove duplicated check for open_handle_count

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/client.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/misc/mei/client.c b/drivers/misc/mei/client.c
index 0ccc22ce0904..87c96e4669e2 100644
--- a/drivers/misc/mei/client.c
+++ b/drivers/misc/mei/client.c
@@ -299,12 +299,6 @@ int mei_cl_link(struct mei_cl *cl, int id)
 		return -EMFILE;
 	}
 
-	if (dev->open_handle_count >= MEI_MAX_OPEN_HANDLE_COUNT) {
-		dev_err(&dev->pdev->dev, "open_handle_count exceded %d",
-			MEI_MAX_OPEN_HANDLE_COUNT);
-		return -ENOENT;
-	}
-
 	dev->open_handle_count++;
 
 	cl->host_client_id = id;
-- 
cgit 


From f9350129a09d8f55ba9322fa4327aeb499a91bbd Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Mon, 21 Oct 2013 22:05:40 +0300
Subject: mei: bus: propagate error code returned by mei_me_cl_by_id

no need to change error code value returned by
mei_me_cl_by_id, just propagate it on

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/bus.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index cd2033cd7120..4bc7d620d695 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -245,7 +245,7 @@ static int ___mei_cl_send(struct mei_cl *cl, u8 *buf, size_t length,
 	/* Check if we have an ME client device */
 	id = mei_me_cl_by_id(dev, cl->me_client_id);
 	if (id < 0)
-		return -ENODEV;
+		return id;
 
 	if (length > dev->me_clients[id].props.max_msg_length)
 		return -EINVAL;
-- 
cgit 


From c4e87b525936da188add18d53a0fe681c3c977ce Mon Sep 17 00:00:00 2001
From: Alexander Usyskin <alexander.usyskin@intel.com>
Date: Mon, 21 Oct 2013 22:05:42 +0300
Subject: mei: replace stray pr_debug with dev_dbg

Driver better use dev_dbg, not pr_debug.

Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/pci-me.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/mei/pci-me.c b/drivers/misc/mei/pci-me.c
index 1bf300e08993..b96205aece0c 100644
--- a/drivers/misc/mei/pci-me.c
+++ b/drivers/misc/mei/pci-me.c
@@ -190,7 +190,7 @@ static int mei_me_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	schedule_delayed_work(&dev->timer_work, HZ);
 
-	pr_debug("initialization successful.\n");
+	dev_dbg(&pdev->dev, "initialization successful.\n");
 
 	return 0;
 
-- 
cgit 


From 50f67a06713599e18cd9141e413d0e2653bb242b Mon Sep 17 00:00:00 2001
From: Tomas Winkler <tomas.winkler@intel.com>
Date: Mon, 21 Oct 2013 22:05:39 +0300
Subject: mei: wd: host_init propagate error codes from called functions

Propagate error codes from called functions, they are correct.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mei/wd.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/misc/mei/wd.c b/drivers/misc/mei/wd.c
index b8921432e89d..9e354216c163 100644
--- a/drivers/misc/mei/wd.c
+++ b/drivers/misc/mei/wd.c
@@ -60,7 +60,7 @@ static void mei_wd_set_start_timeout(struct mei_device *dev, u16 timeout)
 int mei_wd_host_init(struct mei_device *dev)
 {
 	struct mei_cl *cl = &dev->wd_cl;
-	int i;
+	int id;
 	int ret;
 
 	mei_cl_init(cl, dev);
@@ -70,19 +70,19 @@ int mei_wd_host_init(struct mei_device *dev)
 
 
 	/* check for valid client id */
-	i = mei_me_cl_by_uuid(dev, &mei_wd_guid);
-	if (i < 0) {
+	id = mei_me_cl_by_uuid(dev, &mei_wd_guid);
+	if (id < 0) {
 		dev_info(&dev->pdev->dev, "wd: failed to find the client\n");
-		return -ENOENT;
+		return id;
 	}
 
-	cl->me_client_id = dev->me_clients[i].client_id;
+	cl->me_client_id = dev->me_clients[id].client_id;
 
 	ret = mei_cl_link(cl, MEI_WD_HOST_CLIENT_ID);
 
 	if (ret < 0) {
 		dev_info(&dev->pdev->dev, "wd: failed link client\n");
-		return -ENOENT;
+		return ret;
 	}
 
 	cl->state = MEI_FILE_CONNECTING;
-- 
cgit 


From 5c6d6fd1564138ad048564e48639f842714a90c6 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Tue, 22 Oct 2013 18:32:39 +0200
Subject: misc: atmel_pwm: add deferred-probing support

Two drivers (atmel-pwm-bl and leds-atmel-pwm) currently depend on the
atmel_pwm driver to have bound to any pwm-device before their devices
are probed.

Support deferred probing of such devices by making sure to return
-EPROBE_DEFER from pwm_channel_alloc when no pwm-device has yet been
bound.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/atmel_pwm.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/misc/atmel_pwm.c b/drivers/misc/atmel_pwm.c
index 494d0500bda6..a6dc56e1bc58 100644
--- a/drivers/misc/atmel_pwm.c
+++ b/drivers/misc/atmel_pwm.c
@@ -90,8 +90,10 @@ int pwm_channel_alloc(int index, struct pwm_channel *ch)
 	unsigned long	flags;
 	int		status = 0;
 
-	/* insist on PWM init, with this signal pinned out */
-	if (!pwm || !(pwm->mask & 1 << index))
+	if (!pwm)
+		return -EPROBE_DEFER;
+
+	if (!(pwm->mask & 1 << index))
 		return -ENODEV;
 
 	if (index < 0 || index >= PWM_NCHAN || !ch)
-- 
cgit 


From 95f774c5268843e78fdb732cd4f27e510bbbba83 Mon Sep 17 00:00:00 2001
From: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Date: Mon, 28 Oct 2013 19:05:16 +0200
Subject: misc/93xx46: avoid infinite loop on write()

This change fixes a problem of infinite zero byte write() without
an error status, if there is an attempt to write a file bigger than
EEPROM size over sysfs interface.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/eeprom/eeprom_93xx46.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/misc/eeprom/eeprom_93xx46.c b/drivers/misc/eeprom/eeprom_93xx46.c
index 94cfc1212577..3a015abb444a 100644
--- a/drivers/misc/eeprom/eeprom_93xx46.c
+++ b/drivers/misc/eeprom/eeprom_93xx46.c
@@ -202,7 +202,7 @@ eeprom_93xx46_bin_write(struct file *filp, struct kobject *kobj,
 	edev = dev_get_drvdata(dev);
 
 	if (unlikely(off >= edev->bin.size))
-		return 0;
+		return -EFBIG;
 	if ((off + count) > edev->bin.size)
 		count = edev->bin.size - off;
 	if (unlikely(!count))
-- 
cgit 


From 7c65e29250a3154cac18b527b6ccfc61f8f08c58 Mon Sep 17 00:00:00 2001
From: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Date: Mon, 28 Oct 2013 19:05:15 +0200
Subject: misc/at24: avoid infinite loop on write()

This change fixes a problem of infinite zero byte write() without
an error status, if there is an attempt to write a file bigger than
EEPROM size over sysfs interface.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Cc: Wolfram Sang <w.sang@pengutronix.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/eeprom/at24.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/misc/eeprom/at24.c b/drivers/misc/eeprom/at24.c
index 5d4fd69d04ca..94b8a3324319 100644
--- a/drivers/misc/eeprom/at24.c
+++ b/drivers/misc/eeprom/at24.c
@@ -428,6 +428,9 @@ static ssize_t at24_bin_write(struct file *filp, struct kobject *kobj,
 {
 	struct at24_data *at24;
 
+	if (unlikely(off >= attr->size))
+		return -EFBIG;
+
 	at24 = dev_get_drvdata(container_of(kobj, struct device, kobj));
 	return at24_write(at24, buf, off, count);
 }
-- 
cgit 


From 4192c74940e23da727eb02b7b4ee779dde2f670a Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sun, 6 Oct 2013 23:55:41 -0700
Subject: mdio_bus: convert bus code to use dev_groups

The dev_attrs field of struct bus_type is going away soon, dev_groups
should be used instead.  This converts the MDIO bus code to use the
correct field.

Cc: David S. Miller <davem@davemloft.net>
Cc: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Nick Bowler <nbowler@elliptictech.com>
Cc: <netdev@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/phy/mdio_bus.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index dc920974204e..56178761ce93 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -438,17 +438,19 @@ phy_id_show(struct device *dev, struct device_attribute *attr, char *buf)
 
 	return sprintf(buf, "0x%.8lx\n", (unsigned long)phydev->phy_id);
 }
+static DEVICE_ATTR_RO(phy_id);
 
-static struct device_attribute mdio_dev_attrs[] = {
-	__ATTR_RO(phy_id),
-	__ATTR_NULL
+static struct attribute *mdio_dev_attrs[] = {
+	&dev_attr_phy_id.attr,
+	NULL,
 };
+ATTRIBUTE_GROUPS(mdio_dev);
 
 struct bus_type mdio_bus_type = {
 	.name		= "mdio_bus",
 	.match		= mdio_bus_match,
 	.pm		= MDIO_BUS_PM_OPS,
-	.dev_attrs	= mdio_dev_attrs,
+	.dev_groups	= mdio_dev_groups,
 };
 EXPORT_SYMBOL(mdio_bus_type);
 
-- 
cgit 


From 24b6bb0714508e3a4f51dec9f4333c988f8afb76 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Mon, 21 Oct 2013 10:19:14 +0200
Subject: serial: sirf: remove duplicate defines

This patch removes duplicate defines in drivers/tty/serial/sirfsoc_uart.h

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/sirfsoc_uart.h | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/drivers/tty/serial/sirfsoc_uart.h b/drivers/tty/serial/sirfsoc_uart.h
index fb8d0a002607..b7d679c0881b 100644
--- a/drivers/tty/serial/sirfsoc_uart.h
+++ b/drivers/tty/serial/sirfsoc_uart.h
@@ -368,15 +368,6 @@ struct sirfsoc_uart_register sirfsoc_uart = {
 #define SIRFSOC_UART_NR				6
 #define SIRFSOC_PORT_TYPE			0xa5
 
-/* Baud Rate Calculation */
-#define SIRF_MIN_SAMPLE_DIV			0xf
-#define SIRF_MAX_SAMPLE_DIV			0x3f
-#define SIRF_IOCLK_DIV_MAX			0xffff
-#define SIRF_SAMPLE_DIV_SHIFT			16
-#define SIRF_IOCLK_DIV_MASK			0xffff
-#define SIRF_SAMPLE_DIV_MASK			0x3f0000
-#define SIRF_BAUD_RATE_SUPPORT_NR		18
-
 /* Uart Common Use Macro*/
 #define SIRFSOC_RX_DMA_BUF_SIZE	256
 #define BYTES_TO_ALIGN(dma_addr)	((unsigned long)(dma_addr) & 0x3)
@@ -453,9 +444,6 @@ struct sirfsoc_uart_port {
 	int				rx_issued;
 };
 
-/* Hardware Flow Control */
-#define SIRFUART_AFC_CTRL_RX_THD	0x70
-
 /* Register Access Control */
 #define portaddr(port, reg)		((port)->membase + (reg))
 #define rd_regb(port, reg)		(__raw_readb(portaddr(port, reg)))
-- 
cgit 


From 2a0b965cfb6efc667228831fc3a30308b4f94a87 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Tue, 22 Oct 2013 06:49:48 -0700
Subject: serial: omap: Add support for optional wake-up

With the recent pinctrl-single changes, omaps can treat
wake-up events from deeper idle states as interrupts.

There's a separate "io chain" controller on most omaps
that stays enabled when the device hits off-idle and the
regular interrupt controller is powered off.

Let's add support for the optional second interrupt for
wake-up events. And then serial-omap can manage the
wake-up interrupt from it's runtime PM calls to avoid
spurious interrupts during runtime.

Note that the wake interrupt is board specific as it
uses the UART RX pin, and for omap3, there are six pin
options for UART3 RX pin.

Also Note that the legacy platform based booting handles
the wake-ups in the legacy mux driver and does not need to
pass the wake-up interrupt to the driver.

And finally, to pass the wake-up interrupt in the dts file,
either interrupt-map or the pending interrupts-extended
property needs to be passed. It's probably best to use
interrupts-extended when it's available.

Cc: Felipe Balbi <balbi@ti.com>
Cc: Kevin Hilman <khilman@linaro.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/omap-serial.c | 54 ++++++++++++++++++++++++++++++++++------
 1 file changed, 46 insertions(+), 8 deletions(-)

diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index c715778a745c..b69393f2817d 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -39,6 +39,7 @@
 #include <linux/irq.h>
 #include <linux/pm_runtime.h>
 #include <linux/of.h>
+#include <linux/of_irq.h>
 #include <linux/gpio.h>
 #include <linux/of_gpio.h>
 #include <linux/platform_data/serial-omap.h>
@@ -134,6 +135,7 @@ struct uart_omap_port {
 	struct uart_port	port;
 	struct uart_omap_dma	uart_dma;
 	struct device		*dev;
+	int			wakeirq;
 
 	unsigned char		ier;
 	unsigned char		lcr;
@@ -214,10 +216,23 @@ static int serial_omap_get_context_loss_count(struct uart_omap_port *up)
 	return pdata->get_context_loss_count(up->dev);
 }
 
+static inline void serial_omap_enable_wakeirq(struct uart_omap_port *up,
+				       bool enable)
+{
+	if (!up->wakeirq)
+		return;
+
+	if (enable)
+		enable_irq(up->wakeirq);
+	else
+		disable_irq(up->wakeirq);
+}
+
 static void serial_omap_enable_wakeup(struct uart_omap_port *up, bool enable)
 {
 	struct omap_uart_port_info *pdata = dev_get_platdata(up->dev);
 
+	serial_omap_enable_wakeirq(up, enable);
 	if (!pdata || !pdata->enable_wakeup)
 		return;
 
@@ -699,6 +714,20 @@ static int serial_omap_startup(struct uart_port *port)
 	if (retval)
 		return retval;
 
+	/* Optional wake-up IRQ */
+	if (up->wakeirq) {
+		retval = request_irq(up->wakeirq, serial_omap_irq,
+				     up->port.irqflags, up->name, up);
+		if (retval) {
+			free_irq(up->port.irq, up);
+			return retval;
+		}
+		disable_irq(up->wakeirq);
+	} else {
+		dev_info(up->port.dev, "no wakeirq for uart%d\n",
+			 up->port.line);
+	}
+
 	dev_dbg(up->port.dev, "serial_omap_startup+%d\n", up->port.line);
 
 	pm_runtime_get_sync(up->dev);
@@ -787,6 +816,8 @@ static void serial_omap_shutdown(struct uart_port *port)
 	pm_runtime_mark_last_busy(up->dev);
 	pm_runtime_put_autosuspend(up->dev);
 	free_irq(up->port.irq, up);
+	if (up->wakeirq)
+		free_irq(up->wakeirq, up);
 }
 
 static void serial_omap_uart_qos_work(struct work_struct *work)
@@ -1572,11 +1603,23 @@ static int serial_omap_probe(struct platform_device *pdev)
 	struct uart_omap_port	*up;
 	struct resource		*mem, *irq;
 	struct omap_uart_port_info *omap_up_info = dev_get_platdata(&pdev->dev);
-	int ret;
+	int ret, uartirq = 0, wakeirq = 0;
 
+	/* The optional wakeirq may be specified in the board dts file */
 	if (pdev->dev.of_node) {
+		uartirq = irq_of_parse_and_map(pdev->dev.of_node, 0);
+		if (!uartirq)
+			return -EPROBE_DEFER;
+		wakeirq = irq_of_parse_and_map(pdev->dev.of_node, 1);
 		omap_up_info = of_get_uart_port_info(&pdev->dev);
 		pdev->dev.platform_data = omap_up_info;
+	} else {
+		irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+		if (!irq) {
+			dev_err(&pdev->dev, "no irq resource?\n");
+			return -ENODEV;
+		}
+		uartirq = irq->start;
 	}
 
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -1585,12 +1628,6 @@ static int serial_omap_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (!irq) {
-		dev_err(&pdev->dev, "no irq resource?\n");
-		return -ENODEV;
-	}
-
 	if (!devm_request_mem_region(&pdev->dev, mem->start, resource_size(mem),
 				pdev->dev.driver->name)) {
 		dev_err(&pdev->dev, "memory region already claimed\n");
@@ -1624,7 +1661,8 @@ static int serial_omap_probe(struct platform_device *pdev)
 	up->port.dev = &pdev->dev;
 	up->port.type = PORT_OMAP;
 	up->port.iotype = UPIO_MEM;
-	up->port.irq = irq->start;
+	up->port.irq = uartirq;
+	up->wakeirq = wakeirq;
 
 	up->port.regshift = 2;
 	up->port.fifosize = 64;
-- 
cgit 


From 68357c7d3f0a5930b48dcbe6d10e5324fdbd8c7a Mon Sep 17 00:00:00 2001
From: "Chen, Jie" <jie.d.chen@intel.com>
Date: Tue, 22 Oct 2013 12:42:09 -0700
Subject: mrst_max3110: fix unbalanced IRQ issue during resume

During resume, a startup will request_irq again, meantime resume function's
enable_irq will cause unbalanced IRQ issue.
Fix this issue by moving request_irq to probe function.

Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Chen, Jie <jie.d.chen@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/mrst_max3110.c | 35 +++++++++++++++++------------------
 1 file changed, 17 insertions(+), 18 deletions(-)

diff --git a/drivers/tty/serial/mrst_max3110.c b/drivers/tty/serial/mrst_max3110.c
index 565779dc7aac..db0448ae59dc 100644
--- a/drivers/tty/serial/mrst_max3110.c
+++ b/drivers/tty/serial/mrst_max3110.c
@@ -43,6 +43,7 @@
 
 #include <linux/kthread.h>
 #include <linux/spi/spi.h>
+#include <linux/pm.h>
 
 #include "mrst_max3110.h"
 
@@ -494,19 +495,9 @@ static int serial_m3110_startup(struct uart_port *port)
 	port->state->port.low_latency = 1;
 
 	if (max->irq) {
-		max->read_thread = NULL;
-		ret = request_irq(max->irq, serial_m3110_irq,
-				IRQ_TYPE_EDGE_FALLING, "max3110", max);
-		if (ret) {
-			max->irq = 0;
-			pr_err(PR_FMT "unable to allocate IRQ, polling\n");
-		}  else {
-			/* Enable RX IRQ only */
-			config |= WC_RXA_IRQ_ENABLE;
-		}
-	}
-
-	if (max->irq == 0) {
+		/* Enable RX IRQ only */
+		config |= WC_RXA_IRQ_ENABLE;
+	} else {
 		/* If IRQ is disabled, start a read thread for input data */
 		max->read_thread =
 			kthread_run(max3110_read_thread, max, "max3110_read");
@@ -520,8 +511,6 @@ static int serial_m3110_startup(struct uart_port *port)
 
 	ret = max3110_out(max, config);
 	if (ret) {
-		if (max->irq)
-			free_irq(max->irq, max);
 		if (max->read_thread)
 			kthread_stop(max->read_thread);
 		max->read_thread = NULL;
@@ -543,9 +532,6 @@ static void serial_m3110_shutdown(struct uart_port *port)
 		max->read_thread = NULL;
 	}
 
-	if (max->irq)
-		free_irq(max->irq, max);
-
 	/* Disable interrupts from this port */
 	config = WC_TAG | WC_SW_SHDI;
 	max3110_out(max, config);
@@ -846,6 +832,16 @@ static int serial_m3110_probe(struct spi_device *spi)
 		goto err_kthread;
 	}
 
+	if (max->irq) {
+		ret = request_irq(max->irq, serial_m3110_irq,
+				IRQ_TYPE_EDGE_FALLING, "max3110", max);
+		if (ret) {
+			max->irq = 0;
+			dev_warn(&spi->dev,
+			"unable to allocate IRQ, will use polling method\n");
+		}
+	}
+
 	spi_set_drvdata(spi, max);
 	pmax = max;
 
@@ -873,6 +869,9 @@ static int serial_m3110_remove(struct spi_device *dev)
 
 	free_page((unsigned long)max->con_xmit.buf);
 
+	if (max->irq)
+		free_irq(max->irq, max);
+
 	if (max->main_thread)
 		kthread_stop(max->main_thread);
 
-- 
cgit 


From 018e7448f2b2beba4a58f4c7fe99a5b32542be4c Mon Sep 17 00:00:00 2001
From: Philippe Proulx <philippe.proulx@savoirfairelinux.com>
Date: Wed, 23 Oct 2013 18:49:58 -0400
Subject: serial: omap: improve RS-485 performance

If RS-485 is enabled, make the OMAP UART fire THR interrupts when both
TX FIFO and TX shift register are empty instead of polling the
equivalent status bit. This removes the burst of interrupt requests
seen at every end of transmission.

Also: the comment said that the TX FIFO trigger level was set at 16
characters when it's 32 in reality.

Signed-off-by: Philippe Proulx <philippe.proulx@savoirfairelinux.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/omap-serial.c | 50 ++++++++++++++++++++++++++++++----------
 1 file changed, 38 insertions(+), 12 deletions(-)

diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index b69393f2817d..e42eb1e5a21a 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -298,21 +298,22 @@ static void serial_omap_enable_ms(struct uart_port *port)
 static void serial_omap_stop_tx(struct uart_port *port)
 {
 	struct uart_omap_port *up = to_uart_omap_port(port);
-	struct circ_buf *xmit = &up->port.state->xmit;
 	int res;
 
 	pm_runtime_get_sync(up->dev);
 
-	/* handle rs485 */
+	/* Handle RS-485 */
 	if (up->rs485.flags & SER_RS485_ENABLED) {
-		/* do nothing if current tx not yet completed */
-		res = serial_in(up, UART_LSR) & UART_LSR_TEMT;
-		if (!res)
-			return;
-
-		/* if there's no more data to send, turn off rts */
-		if (uart_circ_empty(xmit)) {
-			/* if rts not already disabled */
+		if (up->scr & OMAP_UART_SCR_TX_EMPTY) {
+			/* THR interrupt is fired when both TX FIFO and TX
+			 * shift register are empty. This means there's nothing
+			 * left to transmit now, so make sure the THR interrupt
+			 * is fired when TX FIFO is below the trigger level,
+			 * disable THR interrupts and toggle the RS-485 GPIO
+			 * data direction pin if needed.
+			 */
+			up->scr &= ~OMAP_UART_SCR_TX_EMPTY;
+			serial_out(up, UART_OMAP_SCR, up->scr);
 			res = (up->rs485.flags & SER_RS485_RTS_AFTER_SEND) ? 1 : 0;
 			if (gpio_get_value(up->rts_gpio) != res) {
 				if (up->rs485.delay_rts_after_send > 0) {
@@ -320,6 +321,18 @@ static void serial_omap_stop_tx(struct uart_port *port)
 				}
 				gpio_set_value(up->rts_gpio, res);
 			}
+		} else {
+			/* We're asked to stop, but there's still stuff in the
+			 * UART FIFO, so make sure the THR interrupt is fired
+			 * when both TX FIFO and TX shift register are empty.
+			 * The next THR interrupt (if no transmission is started
+			 * in the meantime) will indicate the end of a
+			 * transmission. Therefore we _don't_ disable THR
+			 * interrupts in this situation.
+			 */
+			up->scr |= OMAP_UART_SCR_TX_EMPTY;
+			serial_out(up, UART_OMAP_SCR, up->scr);
+			return;
 		}
 	}
 
@@ -399,8 +412,12 @@ static void serial_omap_start_tx(struct uart_port *port)
 
 	pm_runtime_get_sync(up->dev);
 
-	/* handle rs485 */
+	/* Handle RS-485 */
 	if (up->rs485.flags & SER_RS485_ENABLED) {
+		/* Fire THR interrupts when FIFO is below trigger level */
+		up->scr &= ~OMAP_UART_SCR_TX_EMPTY;
+		serial_out(up, UART_OMAP_SCR, up->scr);
+
 		/* if rts not already enabled */
 		res = (up->rs485.flags & SER_RS485_RTS_ON_SEND) ? 1 : 0;
 		if (gpio_get_value(up->rts_gpio) != res) {
@@ -969,7 +986,7 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
 	 */
 
 	/* Set receive FIFO threshold to 16 characters and
-	 * transmit FIFO threshold to 16 spaces
+	 * transmit FIFO threshold to 32 spaces
 	 */
 	up->fcr &= ~OMAP_UART_FCR_RX_FIFO_TRIG_MASK;
 	up->fcr &= ~OMAP_UART_FCR_TX_FIFO_TRIG_MASK;
@@ -1375,6 +1392,15 @@ serial_omap_config_rs485(struct uart_port *port, struct serial_rs485 *rs485conf)
 	up->ier = mode;
 	serial_out(up, UART_IER, up->ier);
 
+	/* If RS-485 is disabled, make sure the THR interrupt is fired when
+	 * TX FIFO is below the trigger level.
+	 */
+	if (!(up->rs485.flags & SER_RS485_ENABLED) &&
+	    (up->scr & OMAP_UART_SCR_TX_EMPTY)) {
+		up->scr &= ~OMAP_UART_SCR_TX_EMPTY;
+		serial_out(up, UART_OMAP_SCR, up->scr);
+	}
+
 	spin_unlock_irqrestore(&up->port.lock, flags);
 	pm_runtime_mark_last_busy(up->dev);
 	pm_runtime_put_autosuspend(up->dev);
-- 
cgit 


From e5f9bf72efbcaaf7e909cd6b948e43878a27c4e5 Mon Sep 17 00:00:00 2001
From: Philippe Proulx <philippe.proulx@savoirfairelinux.com>
Date: Wed, 23 Oct 2013 18:49:59 -0400
Subject: serial: omap: fix a few checkpatch warnings

Signed-off-by: Philippe Proulx <philippe.proulx@savoirfairelinux.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/omap-serial.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index e42eb1e5a21a..97c07f68cca0 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -177,7 +177,7 @@ struct uart_omap_port {
 	bool			is_suspending;
 };
 
-#define to_uart_omap_port(p)	((container_of((p), struct uart_omap_port, port)))
+#define to_uart_omap_port(p) ((container_of((p), struct uart_omap_port, port)))
 
 static struct uart_omap_port *ui[OMAP_MAX_HSUART_PORTS];
 
@@ -257,9 +257,9 @@ serial_omap_baud_is_mode16(struct uart_port *port, unsigned int baud)
 	unsigned int n16 = port->uartclk / (16 * baud);
 	int baudAbsDiff13 = baud - (port->uartclk / (13 * n13));
 	int baudAbsDiff16 = baud - (port->uartclk / (16 * n16));
-	if(baudAbsDiff13 < 0)
+	if (baudAbsDiff13 < 0)
 		baudAbsDiff13 = -baudAbsDiff13;
-	if(baudAbsDiff16 < 0)
+	if (baudAbsDiff16 < 0)
 		baudAbsDiff16 = -baudAbsDiff16;
 
 	return (baudAbsDiff13 >= baudAbsDiff16);
@@ -316,9 +316,8 @@ static void serial_omap_stop_tx(struct uart_port *port)
 			serial_out(up, UART_OMAP_SCR, up->scr);
 			res = (up->rs485.flags & SER_RS485_RTS_AFTER_SEND) ? 1 : 0;
 			if (gpio_get_value(up->rts_gpio) != res) {
-				if (up->rs485.delay_rts_after_send > 0) {
+				if (up->rs485.delay_rts_after_send > 0)
 					mdelay(up->rs485.delay_rts_after_send);
-				}
 				gpio_set_value(up->rts_gpio, res);
 			}
 		} else {
@@ -422,9 +421,8 @@ static void serial_omap_start_tx(struct uart_port *port)
 		res = (up->rs485.flags & SER_RS485_RTS_ON_SEND) ? 1 : 0;
 		if (gpio_get_value(up->rts_gpio) != res) {
 			gpio_set_value(up->rts_gpio, res);
-			if (up->rs485.delay_rts_before_send > 0) {
+			if (up->rs485.delay_rts_before_send > 0)
 				mdelay(up->rs485.delay_rts_before_send);
-			}
 		}
 	}
 
@@ -1724,8 +1722,9 @@ static int serial_omap_probe(struct platform_device *pdev)
 	up->port.uartclk = omap_up_info->uartclk;
 	if (!up->port.uartclk) {
 		up->port.uartclk = DEFAULT_CLK_SPEED;
-		dev_warn(&pdev->dev, "No clock speed specified: using default:"
-						"%d\n", DEFAULT_CLK_SPEED);
+		dev_warn(&pdev->dev,
+			 "No clock speed specified: using default: %d\n"
+			 DEFAULT_CLK_SPEED);
 	}
 
 	up->latency = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE;
-- 
cgit 


From 9baaa6747e84b078e42b1a6d17088049b5320167 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 28 Oct 2013 09:48:52 +0900
Subject: serial: mfd: Staticize local symbols

These local symbols are used only in this file.
Fix the following sparse warnings:

drivers/tty/serial/mfd.c:296:6: warning: symbol 'hsu_dma_tx' was not declared. Should it be static?
drivers/tty/serial/mfd.c:343:6: warning: symbol 'hsu_dma_start_rx_chan' was not declared. Should it be static?
drivers/tty/serial/mfd.c:389:6: warning: symbol 'hsu_dma_rx' was not declared. Should it be static?
drivers/tty/serial/mfd.c:1186:17: warning: symbol 'serial_hsu_pops' was not declared. Should it be static?

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/mfd.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/serial/mfd.c b/drivers/tty/serial/mfd.c
index 503dcc77b2bd..52c930fac210 100644
--- a/drivers/tty/serial/mfd.c
+++ b/drivers/tty/serial/mfd.c
@@ -293,7 +293,7 @@ static void serial_hsu_enable_ms(struct uart_port *port)
 	serial_out(up, UART_IER, up->ier);
 }
 
-void hsu_dma_tx(struct uart_hsu_port *up)
+static void hsu_dma_tx(struct uart_hsu_port *up)
 {
 	struct circ_buf *xmit = &up->port.state->xmit;
 	struct hsu_dma_buffer *dbuf = &up->txbuf;
@@ -340,7 +340,8 @@ void hsu_dma_tx(struct uart_hsu_port *up)
 }
 
 /* The buffer is already cache coherent */
-void hsu_dma_start_rx_chan(struct hsu_dma_chan *rxc, struct hsu_dma_buffer *dbuf)
+static void hsu_dma_start_rx_chan(struct hsu_dma_chan *rxc,
+					struct hsu_dma_buffer *dbuf)
 {
 	dbuf->ofs = 0;
 
@@ -386,7 +387,8 @@ static void serial_hsu_stop_tx(struct uart_port *port)
 
 /* This is always called in spinlock protected mode, so
  * modify timeout timer is safe here */
-void hsu_dma_rx(struct uart_hsu_port *up, u32 int_sts, unsigned long *flags)
+static void hsu_dma_rx(struct uart_hsu_port *up, u32 int_sts,
+			unsigned long *flags)
 {
 	struct hsu_dma_buffer *dbuf = &up->rxbuf;
 	struct hsu_dma_chan *chan = up->rxc;
@@ -1183,7 +1185,7 @@ static struct console serial_hsu_console = {
 #define SERIAL_HSU_CONSOLE	NULL
 #endif
 
-struct uart_ops serial_hsu_pops = {
+static struct uart_ops serial_hsu_pops = {
 	.tx_empty	= serial_hsu_tx_empty,
 	.set_mctrl	= serial_hsu_set_mctrl,
 	.get_mctrl	= serial_hsu_get_mctrl,
-- 
cgit 


From 75f0aef6220dc1e73bed238e57b20544ef4f38ec Mon Sep 17 00:00:00 2001
From: Cong Ding <dinggnu@gmail.com>
Date: Fri, 25 Oct 2013 00:25:53 -0700
Subject: uio: fix memory leak

we have to call kobject_put() to clean up the kobject after function
kobject_init(), kobject_add(), or kobject_uevent() is called.

Signed-off-by: Cong Ding <dinggnu@gmail.com>
Acked-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/uio/uio.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index 11d4e0a52579..c8e45add506e 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -288,13 +288,13 @@ static int uio_dev_add_attributes(struct uio_device *idev)
 		}
 		map = kzalloc(sizeof(*map), GFP_KERNEL);
 		if (!map)
-			goto err_map;
+			goto err_map_kobj;
 		kobject_init(&map->kobj, &map_attr_type);
 		map->mem = mem;
 		mem->map = map;
 		ret = kobject_add(&map->kobj, idev->map_dir, "map%d", mi);
 		if (ret)
-			goto err_map;
+			goto err_map_kobj;
 		ret = kobject_uevent(&map->kobj, KOBJ_ADD);
 		if (ret)
 			goto err_map;
@@ -313,14 +313,14 @@ static int uio_dev_add_attributes(struct uio_device *idev)
 		}
 		portio = kzalloc(sizeof(*portio), GFP_KERNEL);
 		if (!portio)
-			goto err_portio;
+			goto err_portio_kobj;
 		kobject_init(&portio->kobj, &portio_attr_type);
 		portio->port = port;
 		port->portio = portio;
 		ret = kobject_add(&portio->kobj, idev->portio_dir,
 							"port%d", pi);
 		if (ret)
-			goto err_portio;
+			goto err_portio_kobj;
 		ret = kobject_uevent(&portio->kobj, KOBJ_ADD);
 		if (ret)
 			goto err_portio;
@@ -329,14 +329,18 @@ static int uio_dev_add_attributes(struct uio_device *idev)
 	return 0;
 
 err_portio:
-	for (pi--; pi >= 0; pi--) {
+	pi--;
+err_portio_kobj:
+	for (; pi >= 0; pi--) {
 		port = &idev->info->port[pi];
 		portio = port->portio;
 		kobject_put(&portio->kobj);
 	}
 	kobject_put(idev->portio_dir);
 err_map:
-	for (mi--; mi>=0; mi--) {
+	mi--;
+err_map_kobj:
+	for (; mi >= 0; mi--) {
 		mem = &idev->info->mem[mi];
 		map = mem->map;
 		kobject_put(&map->kobj);
-- 
cgit 


From 2fc74ac22751922f075f7e1ffda10daf88fe20fb Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sat, 19 Oct 2013 20:15:37 -0700
Subject: UWB: clean up attribute use by using ATTRIBUTE_GROUPS()

The ATTRIBUTE_GROUPS() macro can be used in the uwb code to reduce the
number of lines of code.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/uwb/lc-dev.c | 16 +++-------------
 1 file changed, 3 insertions(+), 13 deletions(-)

diff --git a/drivers/uwb/lc-dev.c b/drivers/uwb/lc-dev.c
index 9209eafc75b1..80079b8fed15 100644
--- a/drivers/uwb/lc-dev.c
+++ b/drivers/uwb/lc-dev.c
@@ -244,7 +244,7 @@ static ssize_t uwb_dev_RSSI_store(struct device *dev,
 static DEVICE_ATTR(RSSI, S_IRUGO | S_IWUSR, uwb_dev_RSSI_show, uwb_dev_RSSI_store);
 
 
-static struct attribute *dev_attrs[] = {
+static struct attribute *uwb_dev_attrs[] = {
 	&dev_attr_EUI_48.attr,
 	&dev_attr_DevAddr.attr,
 	&dev_attr_BPST.attr,
@@ -253,20 +253,10 @@ static struct attribute *dev_attrs[] = {
 	&dev_attr_RSSI.attr,
 	NULL,
 };
-
-static struct attribute_group dev_attr_group = {
-	.attrs = dev_attrs,
-};
-
-static const struct attribute_group *groups[] = {
-	&dev_attr_group,
-	NULL,
-};
+ATTRIBUTE_GROUPS(uwb_dev);
 
 /**
  * Device SYSFS registration
- *
- *
  */
 static int __uwb_dev_sys_add(struct uwb_dev *uwb_dev, struct device *parent_dev)
 {
@@ -276,7 +266,7 @@ static int __uwb_dev_sys_add(struct uwb_dev *uwb_dev, struct device *parent_dev)
 	/* Device sysfs files are only useful for neighbor devices not
 	   local radio controllers. */
 	if (&uwb_dev->rc->uwb_dev != uwb_dev)
-		dev->groups = groups;
+		dev->groups = uwb_dev_groups;
 	dev->parent = parent_dev;
 	dev_set_drvdata(dev, uwb_dev);
 
-- 
cgit 


From f55055b4648416a9d31e5666a5425d406c05f626 Mon Sep 17 00:00:00 2001
From: Huang Rui <ray.huang@amd.com>
Date: Mon, 21 Oct 2013 23:15:30 +0800
Subject: usb: usbtest: fix checkpatch warning as sizeof code style

Script checkpatch.pl always complains incorrect code style like below:

WARNING: sizeof *udev->bos->desc should be sizeof(*udev->bos->desc)

This patch fixes the warning for usbtest module.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/misc/usbtest.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index 3e91d3e98ee8..1fdd88f382cc 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -437,7 +437,7 @@ alloc_sglist(int nents, int max, int vary)
 	if (max == 0)
 		return NULL;
 
-	sg = kmalloc_array(nents, sizeof *sg, GFP_KERNEL);
+	sg = kmalloc_array(nents, sizeof(*sg), GFP_KERNEL);
 	if (!sg)
 		return NULL;
 	sg_init_table(sg, nents);
@@ -573,7 +573,7 @@ static int is_good_config(struct usbtest_dev *tdev, int len)
 {
 	struct usb_config_descriptor	*config;
 
-	if (len < sizeof *config)
+	if (len < sizeof(*config))
 		return 0;
 	config = (struct usb_config_descriptor *) tdev->buf;
 
@@ -683,8 +683,8 @@ static int ch9_postconfig(struct usbtest_dev *dev)
 
 	/* there's always [9.4.3] a device descriptor [9.6.1] */
 	retval = usb_get_descriptor(udev, USB_DT_DEVICE, 0,
-			dev->buf, sizeof udev->descriptor);
-	if (retval != sizeof udev->descriptor) {
+			dev->buf, sizeof(udev->descriptor));
+	if (retval != sizeof(udev->descriptor)) {
 		dev_err(&iface->dev, "dev descriptor --> %d\n", retval);
 		return (retval < 0) ? retval : -EDOM;
 	}
@@ -954,7 +954,7 @@ test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param)
 		 * device, but some are chosen to trigger protocol stalls
 		 * or short reads.
 		 */
-		memset(&req, 0, sizeof req);
+		memset(&req, 0, sizeof(req));
 		req.bRequest = USB_REQ_GET_DESCRIPTOR;
 		req.bRequestType = USB_DIR_IN|USB_RECIP_DEVICE;
 
@@ -1074,7 +1074,7 @@ test_ctrl_queue(struct usbtest_dev *dev, struct usbtest_param *param)
 		if (!u)
 			goto cleanup;
 
-		reqp = kmalloc(sizeof *reqp, GFP_KERNEL);
+		reqp = kmalloc(sizeof(*reqp), GFP_KERNEL);
 		if (!reqp)
 			goto cleanup;
 		reqp->setup = req;
@@ -1667,13 +1667,13 @@ test_iso_queue(struct usbtest_dev *dev, struct usbtest_param *param,
 	if (param->sglen > 10)
 		return -EDOM;
 
-	memset(&context, 0, sizeof context);
+	memset(&context, 0, sizeof(context));
 	context.count = param->iterations * param->sglen;
 	context.dev = dev;
 	init_completion(&context.done);
 	spin_lock_init(&context.lock);
 
-	memset(urbs, 0, sizeof urbs);
+	memset(urbs, 0, sizeof(urbs));
 	udev = testdev_to_usbdev(dev);
 	dev_info(&dev->intf->dev,
 		"... iso period %d %sframes, wMaxPacket %04x\n",
-- 
cgit 


From e55f7cd2467631980f749fb0aef197c06ce38d6a Mon Sep 17 00:00:00 2001
From: H Hartley Sweeten <hartleys@visionengravers.com>
Date: Mon, 21 Oct 2013 13:39:04 -0700
Subject: usb: ohci: remove ep93xx bus glue platform driver

Convert ep93xx to use the OHCI platform driver and remove the
ohci-ep93xx bus glue driver.

Enable CONFIG_OHCI_HCD_PLATFORM in the ep93xx_defconfig so that USB
is still enabled by default on the EP93xx platform.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Cc: Ryan Mallon <rmallon@gmail.com>
Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Olof Johansson <olof@lixom.net>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/arm/configs/ep93xx_defconfig |   1 +
 arch/arm/mach-ep93xx/clock.c      |   2 +-
 arch/arm/mach-ep93xx/core.c       |  39 +++++++--
 drivers/usb/host/Kconfig          |   8 --
 drivers/usb/host/Makefile         |   1 -
 drivers/usb/host/ohci-ep93xx.c    | 174 --------------------------------------
 6 files changed, 36 insertions(+), 189 deletions(-)
 delete mode 100644 drivers/usb/host/ohci-ep93xx.c

diff --git a/arch/arm/configs/ep93xx_defconfig b/arch/arm/configs/ep93xx_defconfig
index 8eccbcbd5217..6ac5ea73bd0a 100644
--- a/arch/arm/configs/ep93xx_defconfig
+++ b/arch/arm/configs/ep93xx_defconfig
@@ -83,6 +83,7 @@ CONFIG_USB=y
 CONFIG_USB_DEBUG=y
 CONFIG_USB_DYNAMIC_MINORS=y
 CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PLATFORM=y
 CONFIG_USB_STORAGE=y
 CONFIG_USB_SERIAL=y
 CONFIG_USB_SERIAL_CONSOLE=y
diff --git a/arch/arm/mach-ep93xx/clock.c b/arch/arm/mach-ep93xx/clock.c
index c95dbce2468e..39ef3b613912 100644
--- a/arch/arm/mach-ep93xx/clock.c
+++ b/arch/arm/mach-ep93xx/clock.c
@@ -212,7 +212,7 @@ static struct clk_lookup clocks[] = {
 	INIT_CK(NULL,			"hclk",		&clk_h),
 	INIT_CK(NULL,			"apb_pclk",	&clk_p),
 	INIT_CK(NULL,			"pll2",		&clk_pll2),
-	INIT_CK("ep93xx-ohci",		NULL,		&clk_usb_host),
+	INIT_CK("ohci-platform",	NULL,		&clk_usb_host),
 	INIT_CK("ep93xx-keypad",	NULL,		&clk_keypad),
 	INIT_CK("ep93xx-fb",		NULL,		&clk_video),
 	INIT_CK("ep93xx-spi.0",		NULL,		&clk_spi),
diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c
index 3f12b885c083..d95ee28a616a 100644
--- a/arch/arm/mach-ep93xx/core.c
+++ b/arch/arm/mach-ep93xx/core.c
@@ -36,6 +36,7 @@
 #include <linux/export.h>
 #include <linux/irqchip/arm-vic.h>
 #include <linux/reboot.h>
+#include <linux/usb/ohci_pdriver.h>
 
 #include <mach/hardware.h>
 #include <linux/platform_data/video-ep93xx.h>
@@ -297,25 +298,53 @@ static struct platform_device ep93xx_rtc_device = {
 	.resource	= ep93xx_rtc_resource,
 };
 
+/*************************************************************************
+ * EP93xx OHCI USB Host
+ *************************************************************************/
+
+static struct clk *ep93xx_ohci_host_clock;
+
+static int ep93xx_ohci_power_on(struct platform_device *pdev)
+{
+	if (!ep93xx_ohci_host_clock) {
+		ep93xx_ohci_host_clock = devm_clk_get(&pdev->dev, NULL);
+		if (IS_ERR(ep93xx_ohci_host_clock))
+			return PTR_ERR(ep93xx_ohci_host_clock);
+	}
+
+	return clk_enable(ep93xx_ohci_host_clock);
+}
+
+static void ep93xx_ohci_power_off(struct platform_device *pdev)
+{
+	clk_disable(ep93xx_ohci_host_clock);
+}
+
+static struct usb_ohci_pdata ep93xx_ohci_pdata = {
+	.power_on	= ep93xx_ohci_power_on,
+	.power_off	= ep93xx_ohci_power_off,
+	.power_suspend	= ep93xx_ohci_power_off,
+};
 
 static struct resource ep93xx_ohci_resources[] = {
 	DEFINE_RES_MEM(EP93XX_USB_PHYS_BASE, 0x1000),
 	DEFINE_RES_IRQ(IRQ_EP93XX_USB),
 };
 
+static u64 ep93xx_ohci_dma_mask = DMA_BIT_MASK(32);
 
 static struct platform_device ep93xx_ohci_device = {
-	.name		= "ep93xx-ohci",
+	.name		= "ohci-platform",
 	.id		= -1,
+	.num_resources	= ARRAY_SIZE(ep93xx_ohci_resources),
+	.resource	= ep93xx_ohci_resources,
 	.dev		= {
-		.dma_mask		= &ep93xx_ohci_device.dev.coherent_dma_mask,
+		.dma_mask		= &ep93xx_ohci_dma_mask,
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
+		.platform_data		= &ep93xx_ohci_pdata,
 	},
-	.num_resources	= ARRAY_SIZE(ep93xx_ohci_resources),
-	.resource	= ep93xx_ohci_resources,
 };
 
-
 /*************************************************************************
  * EP93xx physmap'ed flash
  *************************************************************************/
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 80e72fba01f4..a9707da7da0b 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -396,14 +396,6 @@ config USB_OHCI_HCD_LPC32XX
           Enables support for the on-chip OHCI controller on
           NXP chips.
 
-config USB_OHCI_HCD_EP93XX
-	tristate "Support for EP93XX on-chip OHCI USB controller"
-	depends on USB_OHCI_HCD && ARCH_EP93XX
-	default y
-	---help---
-	  Enables support for the on-chip OHCI controller on
-	  EP93XX chips.
-
 config USB_OHCI_HCD_PXA27X
 	tristate "Support for PXA27X/PXA3XX on-chip OHCI USB controller"
 	depends on USB_OHCI_HCD && (PXA27x || PXA3xx)
diff --git a/drivers/usb/host/Makefile b/drivers/usb/host/Makefile
index 9dc11c2ee454..01e879ef3654 100644
--- a/drivers/usb/host/Makefile
+++ b/drivers/usb/host/Makefile
@@ -54,7 +54,6 @@ obj-$(CONFIG_USB_OHCI_HCD_SPEAR)	+= ohci-spear.o
 obj-$(CONFIG_USB_OHCI_HCD_AT91)	+= ohci-at91.o
 obj-$(CONFIG_USB_OHCI_HCD_S3C2410)	+= ohci-s3c2410.o
 obj-$(CONFIG_USB_OHCI_HCD_LPC32XX)	+= ohci-nxp.o
-obj-$(CONFIG_USB_OHCI_HCD_EP93XX)	+= ohci-ep93xx.o
 obj-$(CONFIG_USB_OHCI_HCD_PXA27X)	+= ohci-pxa27x.o
 
 obj-$(CONFIG_USB_UHCI_HCD)	+= uhci-hcd.o
diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c
deleted file mode 100644
index 492f681c70f2..000000000000
--- a/drivers/usb/host/ohci-ep93xx.c
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- * OHCI HCD (Host Controller Driver) for USB.
- *
- * (C) Copyright 1999 Roman Weissgaerber <weissg@vienna.at>
- * (C) Copyright 2000-2002 David Brownell <dbrownell@users.sourceforge.net>
- * (C) Copyright 2002 Hewlett-Packard Company
- *
- * Bus Glue for ep93xx.
- *
- * Written by Christopher Hoover <ch@hpl.hp.com>
- * Based on fragments of previous driver by Russell King et al.
- *
- * Modified for LH7A404 from ohci-sa1111.c
- *  by Durgesh Pattamatta <pattamattad@sharpsec.com>
- *
- * Modified for pxa27x from ohci-lh7a404.c
- *  by Nick Bane <nick@cecomputing.co.uk> 26-8-2004
- *
- * Modified for ep93xx from ohci-pxa27x.c
- *  by Lennert Buytenhek <buytenh@wantstofly.org> 28-2-2006
- *  Based on an earlier driver by Ray Lehtiniemi
- *
- * This file is licenced under the GPL.
- */
-
-#include <linux/clk.h>
-#include <linux/device.h>
-#include <linux/io.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/signal.h>
-#include <linux/usb.h>
-#include <linux/usb/hcd.h>
-
-#include "ohci.h"
-
-#define DRIVER_DESC "OHCI EP93xx driver"
-
-static const char hcd_name[] = "ohci-ep93xx";
-
-static struct hc_driver __read_mostly ohci_ep93xx_hc_driver;
-
-static struct clk *usb_host_clock;
-
-static int ohci_hcd_ep93xx_drv_probe(struct platform_device *pdev)
-{
-	struct usb_hcd *hcd;
-	struct resource *res;
-	int irq;
-	int ret;
-
-	if (usb_disabled())
-		return -ENODEV;
-
-	irq = platform_get_irq(pdev, 0);
-	if (irq < 0)
-		return irq;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -ENXIO;
-
-	hcd = usb_create_hcd(&ohci_ep93xx_hc_driver, &pdev->dev, "ep93xx");
-	if (!hcd)
-		return -ENOMEM;
-
-	hcd->rsrc_start = res->start;
-	hcd->rsrc_len = resource_size(res);
-
-	hcd->regs = devm_ioremap_resource(&pdev->dev, res);
-	if (IS_ERR(hcd->regs)) {
-		ret = PTR_ERR(hcd->regs);
-		goto err_put_hcd;
-	}
-
-	usb_host_clock = devm_clk_get(&pdev->dev, NULL);
-	if (IS_ERR(usb_host_clock)) {
-		ret = PTR_ERR(usb_host_clock);
-		goto err_put_hcd;
-	}
-
-	clk_enable(usb_host_clock);
-
-	ret = usb_add_hcd(hcd, irq, 0);
-	if (ret)
-		goto err_clk_disable;
-
-	return 0;
-
-err_clk_disable:
-	clk_disable(usb_host_clock);
-err_put_hcd:
-	usb_put_hcd(hcd);
-
-	return ret;
-}
-
-static int ohci_hcd_ep93xx_drv_remove(struct platform_device *pdev)
-{
-	struct usb_hcd *hcd = platform_get_drvdata(pdev);
-
-	usb_remove_hcd(hcd);
-	clk_disable(usb_host_clock);
-	usb_put_hcd(hcd);
-
-	return 0;
-}
-
-#ifdef CONFIG_PM
-static int ohci_hcd_ep93xx_drv_suspend(struct platform_device *pdev, pm_message_t state)
-{
-	struct usb_hcd *hcd = platform_get_drvdata(pdev);
-	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
-
-	if (time_before(jiffies, ohci->next_statechange))
-		msleep(5);
-	ohci->next_statechange = jiffies;
-
-	clk_disable(usb_host_clock);
-	return 0;
-}
-
-static int ohci_hcd_ep93xx_drv_resume(struct platform_device *pdev)
-{
-	struct usb_hcd *hcd = platform_get_drvdata(pdev);
-	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
-
-	if (time_before(jiffies, ohci->next_statechange))
-		msleep(5);
-	ohci->next_statechange = jiffies;
-
-	clk_enable(usb_host_clock);
-
-	ohci_resume(hcd, false);
-	return 0;
-}
-#endif
-
-static struct platform_driver ohci_hcd_ep93xx_driver = {
-	.probe		= ohci_hcd_ep93xx_drv_probe,
-	.remove		= ohci_hcd_ep93xx_drv_remove,
-	.shutdown	= usb_hcd_platform_shutdown,
-#ifdef CONFIG_PM
-	.suspend	= ohci_hcd_ep93xx_drv_suspend,
-	.resume		= ohci_hcd_ep93xx_drv_resume,
-#endif
-	.driver		= {
-		.name	= "ep93xx-ohci",
-		.owner	= THIS_MODULE,
-	},
-};
-
-static int __init ohci_ep93xx_init(void)
-{
-	if (usb_disabled())
-		return -ENODEV;
-
-	pr_info("%s: " DRIVER_DESC "\n", hcd_name);
-
-	ohci_init_driver(&ohci_ep93xx_hc_driver, NULL);
-	return platform_driver_register(&ohci_hcd_ep93xx_driver);
-}
-module_init(ohci_ep93xx_init);
-
-static void __exit ohci_ep93xx_cleanup(void)
-{
-	platform_driver_unregister(&ohci_hcd_ep93xx_driver);
-}
-module_exit(ohci_ep93xx_cleanup);
-
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:ep93xx-ohci");
-- 
cgit 


From df101c531eb737915349a1c4b677da7db55eaf69 Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Tue, 22 Oct 2013 11:13:41 +0800
Subject: usb: chipidea: host: more enhancement when ci->hcd is NULL

Like http://marc.info/?l=linux-usb&m=138200449428874&w=2 said:
two more things are needed to be done:

- If host_start fails, the host_stop should not be called, so we
add check that ci->hcd is not NULL.
- if the host_start fails at the beginning, we need to consider
regulator mismatch issue.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/chipidea/host.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index 64d7a6d9a1ad..59e6020ea753 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -103,15 +103,15 @@ static void host_stop(struct ci_hdrc *ci)
 	if (hcd) {
 		usb_remove_hcd(hcd);
 		usb_put_hcd(hcd);
+		if (ci->platdata->reg_vbus)
+			regulator_disable(ci->platdata->reg_vbus);
 	}
-	if (ci->platdata->reg_vbus)
-		regulator_disable(ci->platdata->reg_vbus);
 }
 
 
 void ci_hdrc_host_destroy(struct ci_hdrc *ci)
 {
-	if (ci->role == CI_ROLE_HOST)
+	if (ci->role == CI_ROLE_HOST && ci->hcd)
 		host_stop(ci);
 }
 
-- 
cgit 


From 7b6bc07ab554e929c85d51b3d5b26cf7f12c6a3b Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Wed, 23 Oct 2013 14:44:26 -0500
Subject: usb: wusbcore: set the RPIPE wMaxPacketSize value correctly

For isochronous endpoints, set the RPIPE wMaxPacketSize value using
wOverTheAirPacketSize from the endpoint companion descriptor instead of
wMaxPacketSize from the normal endpoint descriptor.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/wa-rpipe.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/wusbcore/wa-rpipe.c b/drivers/usb/wusbcore/wa-rpipe.c
index 1ed068accb76..b48e74cc54d7 100644
--- a/drivers/usb/wusbcore/wa-rpipe.c
+++ b/drivers/usb/wusbcore/wa-rpipe.c
@@ -334,7 +334,10 @@ static int rpipe_aim(struct wa_rpipe *rpipe, struct wahc *wa,
 	/* FIXME: compute so seg_size > ep->maxpktsize */
 	rpipe->descr.wBlocks = cpu_to_le16(16);		/* given */
 	/* ep0 maxpktsize is 0x200 (WUSB1.0[4.8.1]) */
-	rpipe->descr.wMaxPacketSize = cpu_to_le16(ep->desc.wMaxPacketSize);
+	if (usb_endpoint_xfer_isoc(&ep->desc))
+		rpipe->descr.wMaxPacketSize = epcd->wOverTheAirPacketSize;
+	else
+		rpipe->descr.wMaxPacketSize = ep->desc.wMaxPacketSize;
 
 	rpipe->descr.hwa_bMaxBurst = max(min_t(unsigned int,
 				epcd->bMaxBurst, 16U), 1U);
-- 
cgit 


From 2101242cef04991a580c3debb46972dbfaaaf138 Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Wed, 23 Oct 2013 14:44:27 -0500
Subject: usb: wusbcore: combine multiple isoc frames in a single transfer
 request.

Combine multiple isoc frames in a single transfer request.  This allows
the HWA to take advantage of bursting to deliver data to endpoints
whose logical service interval is less than the minimum wireless USB
service interval of 4ms.  Wireless audio quality is much improved after
this update.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/wa-xfer.c | 366 ++++++++++++++++++++++++++++-------------
 1 file changed, 255 insertions(+), 111 deletions(-)

diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index f1e9a386beca..9325d27453c4 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -121,6 +121,9 @@ struct wa_seg {
 	struct list_head list_node;	/* for rpipe->req_list */
 	struct wa_xfer *xfer;		/* out xfer */
 	u8 index;			/* which segment we are */
+	int isoc_frame_count;	/* number of isoc frames in this segment. */
+	int isoc_frame_offset;	/* starting frame offset in the xfer URB. */
+	int isoc_size;	/* size of all isoc frames sent by this seg. */
 	enum wa_seg_status status;
 	ssize_t result;			/* bytes xfered or error */
 	struct wa_xfer_hdr xfer_hdr;
@@ -154,12 +157,17 @@ struct wa_xfer {
 	unsigned is_dma:1;
 	size_t seg_size;
 	int result;
+	/* Isoc frame that the current transfer buffer corresponds to. */
+	int dto_isoc_frame_index;
 
 	gfp_t gfp;			/* allocation mask */
 
 	struct wusb_dev *wusb_dev;	/* for activity timestamps */
 };
 
+static void __wa_populate_dto_urb_isoc(struct wa_xfer *xfer,
+	struct wa_seg *seg, int curr_iso_frame);
+
 static inline void wa_xfer_init(struct wa_xfer *xfer)
 {
 	kref_init(&xfer->refcnt);
@@ -462,6 +470,31 @@ error_kmalloc:
 
 }
 
+/*
+ * Calculate the number of isoc frames starting from isoc_frame_offset
+ * that will fit a in transfer segment.
+ */
+static int __wa_seg_calculate_isoc_frame_count(struct wa_xfer *xfer,
+	int isoc_frame_offset, int *total_size)
+{
+	int segment_size = 0, frame_count = 0;
+	int index = isoc_frame_offset;
+
+	while ((index < xfer->urb->number_of_packets)
+		&& ((segment_size + xfer->urb->iso_frame_desc[index].length)
+				<= xfer->seg_size)) {
+		/* this frame fits. count it. */
+		++frame_count;
+		segment_size += xfer->urb->iso_frame_desc[index].length;
+
+		/* move to the next isoc frame. */
+		++index;
+	}
+
+	*total_size = segment_size;
+	return frame_count;
+}
+
 /*
  *
  * @returns < 0 on error, transfer segment request size if ok
@@ -505,8 +538,20 @@ static ssize_t __wa_xfer_setup_sizes(struct wa_xfer *xfer,
 
 	maxpktsize = le16_to_cpu(rpipe->descr.wMaxPacketSize);
 	if ((rpipe->descr.bmAttribute & 0x3) == USB_ENDPOINT_XFER_ISOC) {
+		int index = 0;
+
 		xfer->seg_size = maxpktsize;
-		xfer->segs = urb->number_of_packets;
+		xfer->segs = 0;
+		/*
+		 * loop over urb->number_of_packets to determine how many
+		 * xfer segments will be needed to send the isoc frames.
+		 */
+		while (index < urb->number_of_packets) {
+			int seg_size; /* don't care. */
+			index += __wa_seg_calculate_isoc_frame_count(xfer,
+					index, &seg_size);
+			++xfer->segs;
+		}
 	} else {
 		xfer->seg_size = le16_to_cpu(rpipe->descr.wBlocks)
 			* 1 << (xfer->wa->wa_descr->bRPipeBlockSize - 1);
@@ -523,20 +568,43 @@ static ssize_t __wa_xfer_setup_sizes(struct wa_xfer *xfer,
 		xfer->seg_size = (xfer->seg_size / maxpktsize) * maxpktsize;
 		xfer->segs = DIV_ROUND_UP(urb->transfer_buffer_length,
 						xfer->seg_size);
-		if (xfer->segs >= WA_SEGS_MAX) {
-			dev_err(dev, "BUG? oops, number of segments %zu bigger than %d\n",
-				(urb->transfer_buffer_length/xfer->seg_size),
-				WA_SEGS_MAX);
-			result = -EINVAL;
-			goto error;
-		}
 		if (xfer->segs == 0 && *pxfer_type == WA_XFER_TYPE_CTL)
 			xfer->segs = 1;
 	}
+
+	if (xfer->segs >= WA_SEGS_MAX) {
+		dev_err(dev, "BUG? oops, number of segments %zu bigger than %d\n",
+			(urb->transfer_buffer_length/xfer->seg_size),
+			WA_SEGS_MAX);
+		result = -EINVAL;
+		goto error;
+	}
 error:
 	return result;
 }
 
+static void __wa_setup_isoc_packet_descr(
+		struct wa_xfer_packet_info_hwaiso *packet_desc,
+		struct wa_xfer *xfer,
+		struct wa_seg *seg) {
+	struct usb_iso_packet_descriptor *iso_frame_desc =
+		xfer->urb->iso_frame_desc;
+	int frame_index;
+
+	/* populate isoc packet descriptor. */
+	packet_desc->bPacketType = WA_XFER_ISO_PACKET_INFO;
+	packet_desc->wLength = cpu_to_le16(sizeof(*packet_desc) +
+		(sizeof(packet_desc->PacketLength[0]) *
+			seg->isoc_frame_count));
+	for (frame_index = 0; frame_index < seg->isoc_frame_count;
+		++frame_index) {
+		int offset_index = frame_index + seg->isoc_frame_offset;
+		packet_desc->PacketLength[frame_index] =
+			cpu_to_le16(iso_frame_desc[offset_index].length);
+	}
+}
+
+
 /* Fill in the common request header and xfer-type specific data. */
 static void __wa_xfer_setup_hdr0(struct wa_xfer *xfer,
 				 struct wa_xfer_hdr *xfer_hdr0,
@@ -544,8 +612,9 @@ static void __wa_xfer_setup_hdr0(struct wa_xfer *xfer,
 				 size_t xfer_hdr_size)
 {
 	struct wa_rpipe *rpipe = xfer->ep->hcpriv;
+	struct wa_seg *seg = xfer->seg[0];
 
-	xfer_hdr0 = &xfer->seg[0]->xfer_hdr;
+	xfer_hdr0 = &seg->xfer_hdr;
 	xfer_hdr0->bLength = xfer_hdr_size;
 	xfer_hdr0->bRequestType = xfer_type;
 	xfer_hdr0->wRPipe = rpipe->descr.wRPipeIndex;
@@ -567,19 +636,11 @@ static void __wa_xfer_setup_hdr0(struct wa_xfer *xfer,
 			container_of(xfer_hdr0, struct wa_xfer_hwaiso, hdr);
 		struct wa_xfer_packet_info_hwaiso *packet_desc =
 			((void *)xfer_iso) + xfer_hdr_size;
-		struct usb_iso_packet_descriptor *iso_frame_desc =
-			&(xfer->urb->iso_frame_desc[0]);
+
 		/* populate the isoc section of the transfer request. */
-		xfer_iso->dwNumOfPackets = cpu_to_le32(1);
-		/*
-		 * populate isoc packet descriptor.  This assumes 1
-		 * packet per segment.
-		 */
-		packet_desc->wLength = cpu_to_le16(sizeof(*packet_desc) +
-			sizeof(packet_desc->PacketLength[0]));
-		packet_desc->bPacketType = WA_XFER_ISO_PACKET_INFO;
-		packet_desc->PacketLength[0] =
-			cpu_to_le16(iso_frame_desc->length);
+		xfer_iso->dwNumOfPackets = cpu_to_le32(seg->isoc_frame_count);
+		/* populate isoc packet descriptor. */
+		__wa_setup_isoc_packet_descr(packet_desc, xfer, seg);
 		break;
 	}
 	default:
@@ -608,54 +669,112 @@ static void wa_seg_dto_cb(struct urb *urb)
 	struct wa_rpipe *rpipe;
 	unsigned long flags;
 	unsigned rpipe_ready = 0;
+	int data_send_done = 1, release_dto = 0, holding_dto = 0;
 	u8 done = 0;
+	int result;
 
 	/* free the sg if it was used. */
 	kfree(urb->sg);
 	urb->sg = NULL;
 
+	spin_lock_irqsave(&xfer->lock, flags);
+	wa = xfer->wa;
+	dev = &wa->usb_iface->dev;
+	if (usb_pipeisoc(xfer->urb->pipe)) {
+		xfer->dto_isoc_frame_index += 1;
+		if (xfer->dto_isoc_frame_index < seg->isoc_frame_count) {
+			data_send_done = 0;
+			holding_dto = 1; /* checked in error cases. */
+			/*
+			 * if this is the last isoc frame of the segment, we
+			 * can release DTO after sending this frame.
+			 */
+			if ((xfer->dto_isoc_frame_index + 1) >=
+				seg->isoc_frame_count)
+				release_dto = 1;
+		}
+		dev_dbg(dev, "xfer 0x%08X#%u: isoc frame = %d, holding_dto = %d, release_dto = %d.\n",
+			wa_xfer_id(xfer), seg->index,
+			xfer->dto_isoc_frame_index, holding_dto, release_dto);
+	}
+	spin_unlock_irqrestore(&xfer->lock, flags);
+
 	switch (urb->status) {
 	case 0:
 		spin_lock_irqsave(&xfer->lock, flags);
-		wa = xfer->wa;
-		dev = &wa->usb_iface->dev;
-		dev_dbg(dev, "xfer %p#%u: data out done (%d bytes)\n",
-			xfer, seg->index, urb->actual_length);
-		if (seg->status < WA_SEG_PENDING)
-			seg->status = WA_SEG_PENDING;
-		seg->result = urb->actual_length;
+		seg->result += urb->actual_length;
+		if (data_send_done) {
+			dev_dbg(dev, "xfer 0x%08X#%u: data out done (%zu bytes)\n",
+				wa_xfer_id(xfer), seg->index, seg->result);
+			if (seg->status < WA_SEG_PENDING)
+				seg->status = WA_SEG_PENDING;
+		} else {
+			/* should only hit this for isoc xfers. */
+			/*
+			 * Populate the dto URB with the next isoc frame buffer,
+			 * send the URB and release DTO if we no longer need it.
+			 */
+			 __wa_populate_dto_urb_isoc(xfer, seg,
+				seg->isoc_frame_offset +
+				xfer->dto_isoc_frame_index);
+
+			/* resubmit the URB with the next isoc frame. */
+			result = usb_submit_urb(seg->dto_urb, GFP_ATOMIC);
+			if (result < 0) {
+				dev_err(dev, "xfer 0x%08X#%u: DTO submit failed: %d\n",
+				       wa_xfer_id(xfer), seg->index, result);
+				spin_unlock_irqrestore(&xfer->lock, flags);
+				goto error_dto_submit;
+			}
+		}
 		spin_unlock_irqrestore(&xfer->lock, flags);
+		if (release_dto) {
+			__wa_dto_put(wa);
+			wa_check_for_delayed_rpipes(wa);
+		}
 		break;
 	case -ECONNRESET:	/* URB unlinked; no need to do anything */
 	case -ENOENT:		/* as it was done by the who unlinked us */
+		if (holding_dto) {
+			__wa_dto_put(wa);
+			wa_check_for_delayed_rpipes(wa);
+		}
 		break;
 	default:		/* Other errors ... */
-		spin_lock_irqsave(&xfer->lock, flags);
-		wa = xfer->wa;
-		dev = &wa->usb_iface->dev;
-		rpipe = xfer->ep->hcpriv;
-		dev_dbg(dev, "xfer %p#%u: data out error %d\n",
-			xfer, seg->index, urb->status);
-		if (edc_inc(&wa->nep_edc, EDC_MAX_ERRORS,
-			    EDC_ERROR_TIMEFRAME)){
-			dev_err(dev, "DTO: URB max acceptable errors "
-				"exceeded, resetting device\n");
-			wa_reset_all(wa);
-		}
-		if (seg->status != WA_SEG_ERROR) {
-			seg->status = WA_SEG_ERROR;
-			seg->result = urb->status;
-			xfer->segs_done++;
-			__wa_xfer_abort(xfer);
-			rpipe_ready = rpipe_avail_inc(rpipe);
-			done = __wa_xfer_is_done(xfer);
-		}
-		spin_unlock_irqrestore(&xfer->lock, flags);
-		if (done)
-			wa_xfer_completion(xfer);
-		if (rpipe_ready)
-			wa_xfer_delayed_run(rpipe);
+		dev_err(dev, "xfer 0x%08X#%u: data out error %d\n",
+			wa_xfer_id(xfer), seg->index, urb->status);
+		goto error_default;
+	}
+
+	return;
+
+error_dto_submit:
+error_default:
+	spin_lock_irqsave(&xfer->lock, flags);
+	rpipe = xfer->ep->hcpriv;
+	if (edc_inc(&wa->nep_edc, EDC_MAX_ERRORS,
+		    EDC_ERROR_TIMEFRAME)){
+		dev_err(dev, "DTO: URB max acceptable errors exceeded, resetting device\n");
+		wa_reset_all(wa);
+	}
+	if (seg->status != WA_SEG_ERROR) {
+		seg->status = WA_SEG_ERROR;
+		seg->result = urb->status;
+		xfer->segs_done++;
+		__wa_xfer_abort(xfer);
+		rpipe_ready = rpipe_avail_inc(rpipe);
+		done = __wa_xfer_is_done(xfer);
 	}
+	spin_unlock_irqrestore(&xfer->lock, flags);
+	if (holding_dto) {
+		__wa_dto_put(wa);
+		wa_check_for_delayed_rpipes(wa);
+	}
+	if (done)
+		wa_xfer_completion(xfer);
+	if (rpipe_ready)
+		wa_xfer_delayed_run(rpipe);
+
 }
 
 /*
@@ -686,8 +805,8 @@ static void wa_seg_iso_pack_desc_cb(struct urb *urb)
 		spin_lock_irqsave(&xfer->lock, flags);
 		wa = xfer->wa;
 		dev = &wa->usb_iface->dev;
-		dev_dbg(dev, "iso xfer %p#%u: packet descriptor done\n",
-			xfer, seg->index);
+		dev_dbg(dev, "iso xfer %08X#%u: packet descriptor done\n",
+			wa_xfer_id(xfer), seg->index);
 		if (xfer->is_inbound && seg->status < WA_SEG_PENDING)
 			seg->status = WA_SEG_PENDING;
 		spin_unlock_irqrestore(&xfer->lock, flags);
@@ -700,8 +819,8 @@ static void wa_seg_iso_pack_desc_cb(struct urb *urb)
 		wa = xfer->wa;
 		dev = &wa->usb_iface->dev;
 		rpipe = xfer->ep->hcpriv;
-		pr_err_ratelimited("iso xfer %p#%u: packet descriptor error %d\n",
-				xfer, seg->index, urb->status);
+		pr_err_ratelimited("iso xfer %08X#%u: packet descriptor error %d\n",
+				wa_xfer_id(xfer), seg->index, urb->status);
 		if (edc_inc(&wa->nep_edc, EDC_MAX_ERRORS,
 			    EDC_ERROR_TIMEFRAME)){
 			dev_err(dev, "DTO: URB max acceptable errors exceeded, resetting device\n");
@@ -885,8 +1004,8 @@ static struct scatterlist *wa_xfer_create_subset_sg(struct scatterlist *in_sg,
 /*
  * Populate DMA buffer info for the isoc dto urb.
  */
-static void __wa_populate_dto_urb_iso(struct wa_xfer *xfer,
-	struct wa_seg *seg,	int curr_iso_frame)
+static void __wa_populate_dto_urb_isoc(struct wa_xfer *xfer,
+	struct wa_seg *seg, int curr_iso_frame)
 {
 	/*
 	 * dto urb buffer address and size pulled from
@@ -960,13 +1079,14 @@ static int __wa_populate_dto_urb(struct wa_xfer *xfer,
  */
 static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size)
 {
-	int result, cnt;
+	int result, cnt, iso_frame_offset;
 	size_t alloc_size = sizeof(*xfer->seg[0])
 		- sizeof(xfer->seg[0]->xfer_hdr) + xfer_hdr_size;
 	struct usb_device *usb_dev = xfer->wa->usb_dev;
 	const struct usb_endpoint_descriptor *dto_epd = xfer->wa->dto_epd;
 	struct wa_seg *seg;
-	size_t buf_itr, buf_size, buf_itr_size, iso_pkt_descr_size = 0;
+	size_t buf_itr, buf_size, buf_itr_size;
+	int xfer_isoc_frame_offset = 0;
 
 	result = -ENOMEM;
 	xfer->seg = kcalloc(xfer->segs, sizeof(xfer->seg[0]), GFP_ATOMIC);
@@ -974,24 +1094,30 @@ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size)
 		goto error_segs_kzalloc;
 	buf_itr = 0;
 	buf_size = xfer->urb->transfer_buffer_length;
+	iso_frame_offset = 0;
+	for (cnt = 0; cnt < xfer->segs; cnt++) {
+		size_t iso_pkt_descr_size = 0;
+		int seg_isoc_frame_count = 0, seg_isoc_size = 0;
 
-	if (usb_pipeisoc(xfer->urb->pipe)) {
-		/*
-		 * This calculation assumes one isoc packet per xfer segment.
-		 * It will need to be updated if this changes.
-		 */
-		iso_pkt_descr_size = sizeof(struct wa_xfer_packet_info_hwaiso) +
-			sizeof(__le16);
-		alloc_size += iso_pkt_descr_size;
-	}
+		if (usb_pipeisoc(xfer->urb->pipe)) {
+			seg_isoc_frame_count =
+				__wa_seg_calculate_isoc_frame_count(xfer,
+					xfer_isoc_frame_offset, &seg_isoc_size);
 
-	for (cnt = 0; cnt < xfer->segs; cnt++) {
-		seg = xfer->seg[cnt] = kmalloc(alloc_size, GFP_ATOMIC);
+			iso_pkt_descr_size =
+				sizeof(struct wa_xfer_packet_info_hwaiso) +
+				(seg_isoc_frame_count * sizeof(__le16));
+		}
+		seg = xfer->seg[cnt] = kmalloc(alloc_size + iso_pkt_descr_size,
+						GFP_ATOMIC);
 		if (seg == NULL)
 			goto error_seg_kmalloc;
 		wa_seg_init(seg);
 		seg->xfer = xfer;
 		seg->index = cnt;
+		seg->isoc_frame_count = seg_isoc_frame_count;
+		seg->isoc_frame_offset = xfer_isoc_frame_offset;
+		seg->isoc_size = seg_isoc_size;
 		usb_fill_bulk_urb(&seg->tr_urb, usb_dev,
 				  usb_sndbulkpipe(usb_dev,
 						  dto_epd->bEndpointAddress),
@@ -1029,8 +1155,16 @@ static int __wa_xfer_setup_segs(struct wa_xfer *xfer, size_t xfer_hdr_size)
 					iso_pkt_descr_size,
 					wa_seg_iso_pack_desc_cb, seg);
 
-				/* fill in the xfer buffer information. */
-				__wa_populate_dto_urb_iso(xfer, seg, cnt);
+				/*
+				 * Fill in the xfer buffer information for the
+				 * first isoc frame.  Subsequent frames in this
+				 * segment will be filled in and sent from the
+				 * DTO completion routine, if needed.
+				 */
+				__wa_populate_dto_urb_isoc(xfer, seg,
+					xfer_isoc_frame_offset);
+				/* adjust starting frame offset for next seg. */
+				xfer_isoc_frame_offset += seg_isoc_frame_count;
 			} else {
 				/* fill in the xfer buffer information. */
 				result = __wa_populate_dto_urb(xfer, seg,
@@ -1099,28 +1233,23 @@ static int __wa_xfer_setup(struct wa_xfer *xfer, struct urb *urb)
 	xfer_hdr = xfer_hdr0;
 	if (xfer_type == WA_XFER_TYPE_ISO) {
 		xfer_hdr0->dwTransferLength =
-			cpu_to_le32(xfer->urb->iso_frame_desc[0].length);
+			cpu_to_le32(xfer->seg[0]->isoc_size);
 		for (cnt = 1; cnt < xfer->segs; cnt++) {
-			struct usb_iso_packet_descriptor *iso_frame_desc =
-				&(xfer->urb->iso_frame_desc[cnt]);
 			struct wa_xfer_packet_info_hwaiso *packet_desc;
+			struct wa_seg *seg = xfer->seg[cnt];
 
-			xfer_hdr = &xfer->seg[cnt]->xfer_hdr;
+			xfer_hdr = &seg->xfer_hdr;
 			packet_desc = ((void *)xfer_hdr) + xfer_hdr_size;
 			/*
-			 * Copy values from the 0th header and isoc packet
-			 * descriptor.  Segment specific values are set below.
+			 * Copy values from the 0th header. Segment specific
+			 * values are set below.
 			 */
-			memcpy(xfer_hdr, xfer_hdr0,
-				xfer_hdr_size + sizeof(*packet_desc));
+			memcpy(xfer_hdr, xfer_hdr0, xfer_hdr_size);
 			xfer_hdr->bTransferSegment = cnt;
 			xfer_hdr->dwTransferLength =
-				cpu_to_le32(iso_frame_desc->length);
-			/* populate isoc packet descriptor length. */
-			packet_desc->PacketLength[0] =
-				cpu_to_le16(iso_frame_desc->length);
-
-			xfer->seg[cnt]->status = WA_SEG_READY;
+				cpu_to_le32(seg->isoc_size);
+			__wa_setup_isoc_packet_descr(packet_desc, xfer, seg);
+			seg->status = WA_SEG_READY;
 		}
 	} else {
 		transfer_size = urb->transfer_buffer_length;
@@ -1175,6 +1304,13 @@ static int __wa_seg_submit(struct wa_rpipe *rpipe, struct wa_xfer *xfer,
 			       __func__, xfer, seg->index, result);
 			goto error_iso_pack_desc_submit;
 		}
+		xfer->dto_isoc_frame_index = 0;
+		/*
+		 * If this segment contains more than one isoc frame, hold
+		 * onto the dto resource until we send all frames.
+		 */
+		if (seg->isoc_frame_count > 1)
+			*dto_done = 0;
 	}
 	/* submit the out data if this is an out request. */
 	if (seg->dto_urb) {
@@ -1196,6 +1332,7 @@ error_iso_pack_desc_submit:
 error_seg_submit:
 	seg->status = WA_SEG_ERROR;
 	seg->result = result;
+	*dto_done = 1;
 	return result;
 }
 
@@ -1306,9 +1443,6 @@ static int __wa_xfer_submit(struct wa_xfer *xfer)
 		available = atomic_read(&rpipe->segs_available);
 		empty = list_empty(&rpipe->seg_list);
 		seg = xfer->seg[cnt];
-		dev_dbg(dev, "xfer %p ID 0x%08X#%u: available %u empty %u (%s)\n",
-			xfer, wa_xfer_id(xfer), cnt, available, empty,
-			available == 0 || !empty ? "delayed" : "submitted");
 		if (available && empty) {
 			/*
 			 * Only attempt to acquire DTO if we have a segment
@@ -1319,6 +1453,9 @@ static int __wa_xfer_submit(struct wa_xfer *xfer)
 				delay_seg = 0;
 				result = __wa_seg_submit(rpipe, xfer, seg,
 							&dto_done);
+				dev_dbg(dev, "xfer %p ID 0x%08X#%u: available %u empty %u submitted\n",
+					xfer, wa_xfer_id(xfer), cnt, available,
+					empty);
 				if (dto_done)
 					__wa_dto_put(rpipe->wa);
 
@@ -1330,6 +1467,8 @@ static int __wa_xfer_submit(struct wa_xfer *xfer)
 		}
 
 		if (delay_seg) {
+			dev_dbg(dev, "xfer %p ID 0x%08X#%u: available %u empty %u delayed\n",
+				xfer, wa_xfer_id(xfer), cnt, available,  empty);
 			seg->status = WA_SEG_DELAYED;
 			list_add_tail(&seg->list_node, &rpipe->seg_list);
 		}
@@ -2031,29 +2170,19 @@ static void wa_process_iso_packet_status(struct wahc *wa, struct urb *urb)
 {
 	struct device *dev = &wa->usb_iface->dev;
 	struct wa_xfer_packet_status_hwaiso *packet_status;
+	struct wa_xfer_packet_status_len_hwaiso *status_array;
 	struct wa_xfer *xfer;
 	unsigned long flags;
 	struct wa_seg *seg;
 	struct wa_rpipe *rpipe;
 	unsigned done = 0;
-	unsigned rpipe_ready = 0;
-	const int expected_size = sizeof(*packet_status) +
-				sizeof(packet_status->PacketStatus[0]);
+	unsigned rpipe_ready = 0, seg_index;
+	int expected_size;
 
 	/* We have a xfer result buffer; check it */
 	dev_dbg(dev, "DTI: isoc packet status %d bytes at %p\n",
 		urb->actual_length, urb->transfer_buffer);
-	if (urb->actual_length != expected_size) {
-		dev_err(dev, "DTI Error: isoc packet status--bad urb length (%d bytes vs %d needed)\n",
-			urb->actual_length, expected_size);
-		goto error_parse_buffer;
-	}
 	packet_status = (struct wa_xfer_packet_status_hwaiso *)(wa->dti_buf);
-	if (le16_to_cpu(packet_status->wLength) != expected_size) {
-		dev_err(dev, "DTI Error: isoc packet status--bad length %u\n",
-			le16_to_cpu(packet_status->wLength));
-		goto error_parse_buffer;
-	}
 	if (packet_status->bPacketType != WA_XFER_ISO_PACKET_STATUS) {
 		dev_err(dev, "DTI Error: isoc packet status--bad type 0x%02x\n",
 			packet_status->bPacketType);
@@ -2070,13 +2199,28 @@ static void wa_process_iso_packet_status(struct wahc *wa, struct urb *urb)
 		goto error_bad_seg;
 	seg = xfer->seg[wa->dti_isoc_xfer_seg];
 	rpipe = xfer->ep->hcpriv;
-
-	/* set urb isoc packet status and length. */
-	xfer->urb->iso_frame_desc[seg->index].status =
-		wa_xfer_status_to_errno(
-		le16_to_cpu(packet_status->PacketStatus[0].PacketStatus));
-	xfer->urb->iso_frame_desc[seg->index].actual_length =
-		le16_to_cpu(packet_status->PacketStatus[0].PacketLength);
+	expected_size = sizeof(*packet_status) +
+			(sizeof(packet_status->PacketStatus[0]) *
+			seg->isoc_frame_count);
+	if (urb->actual_length != expected_size) {
+		dev_err(dev, "DTI Error: isoc packet status--bad urb length (%d bytes vs %d needed)\n",
+			urb->actual_length, expected_size);
+		goto error_bad_seg;
+	}
+	if (le16_to_cpu(packet_status->wLength) != expected_size) {
+		dev_err(dev, "DTI Error: isoc packet status--bad length %u\n",
+			le16_to_cpu(packet_status->wLength));
+		goto error_bad_seg;
+	}
+	/* isoc packet status and lengths back xfer urb. */
+	status_array = packet_status->PacketStatus;
+	for (seg_index = 0; seg_index < seg->isoc_frame_count; ++seg_index) {
+		xfer->urb->iso_frame_desc[seg->index].status =
+			wa_xfer_status_to_errno(
+			le16_to_cpu(status_array[seg_index].PacketStatus));
+		xfer->urb->iso_frame_desc[seg->index].actual_length =
+			le16_to_cpu(status_array[seg_index].PacketLength);
+	}
 
 	if (!xfer->is_inbound) {
 		/* OUT transfer, complete it -- */
-- 
cgit 


From f07ddb9ef5c25c1044ab5b6509241320fb5e831a Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Wed, 23 Oct 2013 14:44:28 -0500
Subject: usb: wusbcore: add a quirk for Alereon HWA device isoc behavior

Add a quirk for Alereon HWA devices to concatenate the frames of isoc
transfer requests.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/hwa-hc.c      | 13 ++++++++---
 drivers/usb/wusbcore/wa-hc.c   |  4 +++-
 drivers/usb/wusbcore/wa-hc.h   | 13 ++++++++++-
 drivers/usb/wusbcore/wa-xfer.c | 49 +++++++++++++++++++++++++++++++-----------
 4 files changed, 62 insertions(+), 17 deletions(-)

diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c
index e5fb3cfd57a9..ada0a52797b1 100644
--- a/drivers/usb/host/hwa-hc.c
+++ b/drivers/usb/host/hwa-hc.c
@@ -679,7 +679,8 @@ static void hwahc_security_release(struct hwahc *hwahc)
 	/* nothing to do here so far... */
 }
 
-static int hwahc_create(struct hwahc *hwahc, struct usb_interface *iface)
+static int hwahc_create(struct hwahc *hwahc, struct usb_interface *iface,
+	kernel_ulong_t quirks)
 {
 	int result;
 	struct device *dev = &iface->dev;
@@ -724,7 +725,7 @@ static int hwahc_create(struct hwahc *hwahc, struct usb_interface *iface)
 		dev_err(dev, "Can't create WUSB HC structures: %d\n", result);
 		goto error_wusbhc_create;
 	}
-	result = wa_create(&hwahc->wa, iface);
+	result = wa_create(&hwahc->wa, iface, quirks);
 	if (result < 0)
 		goto error_wa_create;
 	return 0;
@@ -780,7 +781,7 @@ static int hwahc_probe(struct usb_interface *usb_iface,
 	wusbhc = usb_hcd_to_wusbhc(usb_hcd);
 	hwahc = container_of(wusbhc, struct hwahc, wusbhc);
 	hwahc_init(hwahc);
-	result = hwahc_create(hwahc, usb_iface);
+	result = hwahc_create(hwahc, usb_iface, id->driver_info);
 	if (result < 0) {
 		dev_err(dev, "Cannot initialize internals: %d\n", result);
 		goto error_hwahc_create;
@@ -824,6 +825,12 @@ static void hwahc_disconnect(struct usb_interface *usb_iface)
 }
 
 static struct usb_device_id hwahc_id_table[] = {
+	/* Alereon 5310 */
+	{ USB_DEVICE_AND_INTERFACE_INFO(0x13dc, 0x5310, 0xe0, 0x02, 0x01),
+	  .driver_info = WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC },
+	/* Alereon 5611 */
+	{ USB_DEVICE_AND_INTERFACE_INFO(0x13dc, 0x5611, 0xe0, 0x02, 0x01),
+	  .driver_info = WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC },
 	/* FIXME: use class labels for this */
 	{ USB_INTERFACE_INFO(0xe0, 0x02, 0x01), },
 	{},
diff --git a/drivers/usb/wusbcore/wa-hc.c b/drivers/usb/wusbcore/wa-hc.c
index 6c09b0e4672b..368360f9a93a 100644
--- a/drivers/usb/wusbcore/wa-hc.c
+++ b/drivers/usb/wusbcore/wa-hc.c
@@ -33,7 +33,8 @@
  * wa->usb_dev and wa->usb_iface initialized and refcounted,
  * wa->wa_descr initialized.
  */
-int wa_create(struct wahc *wa, struct usb_interface *iface)
+int wa_create(struct wahc *wa, struct usb_interface *iface,
+	kernel_ulong_t quirks)
 {
 	int result;
 	struct device *dev = &iface->dev;
@@ -41,6 +42,7 @@ int wa_create(struct wahc *wa, struct usb_interface *iface)
 	result = wa_rpipes_create(wa);
 	if (result < 0)
 		goto error_rpipes_create;
+	wa->quirks = quirks;
 	/* Fill up Data Transfer EP pointers */
 	wa->dti_epd = &iface->cur_altsetting->endpoint[1].desc;
 	wa->dto_epd = &iface->cur_altsetting->endpoint[2].desc;
diff --git a/drivers/usb/wusbcore/wa-hc.h b/drivers/usb/wusbcore/wa-hc.h
index 41afaa6d01d2..e614f02f0cf2 100644
--- a/drivers/usb/wusbcore/wa-hc.h
+++ b/drivers/usb/wusbcore/wa-hc.h
@@ -128,6 +128,14 @@ enum wa_dti_state {
 	WA_DTI_ISOC_PACKET_STATUS_PENDING
 };
 
+enum wa_quirks {
+	/*
+	 * The Alereon HWA expects the data frames in isochronous transfer
+	 * requests to be concatenated and not sent as separate packets.
+	 */
+	WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC	= 0x01,
+};
+
 /**
  * Instance of a HWA Host Controller
  *
@@ -218,10 +226,13 @@ struct wahc {
 	struct work_struct xfer_enqueue_work;
 	struct work_struct xfer_error_work;
 	atomic_t xfer_id_count;
+
+	kernel_ulong_t	quirks;
 };
 
 
-extern int wa_create(struct wahc *wa, struct usb_interface *iface);
+extern int wa_create(struct wahc *wa, struct usb_interface *iface,
+	kernel_ulong_t);
 extern void __wa_destroy(struct wahc *wa);
 void wa_reset_all(struct wahc *wa);
 
diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index 9325d27453c4..090ac308c756 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -479,13 +479,29 @@ static int __wa_seg_calculate_isoc_frame_count(struct wa_xfer *xfer,
 {
 	int segment_size = 0, frame_count = 0;
 	int index = isoc_frame_offset;
+	struct usb_iso_packet_descriptor *iso_frame_desc =
+		xfer->urb->iso_frame_desc;
 
 	while ((index < xfer->urb->number_of_packets)
-		&& ((segment_size + xfer->urb->iso_frame_desc[index].length)
+		&& ((segment_size + iso_frame_desc[index].length)
 				<= xfer->seg_size)) {
+		/*
+		 * For Alereon HWA devices, only include an isoc frame in a
+		 * segment if it is physically contiguous with the previous
+		 * frame.  This is required because those devices expect
+		 * the isoc frames to be sent as a single USB transaction as
+		 * opposed to one transaction per frame with standard HWA.
+		 */
+		if ((xfer->wa->quirks & WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC)
+			&& (index > isoc_frame_offset)
+			&& ((iso_frame_desc[index - 1].offset +
+				iso_frame_desc[index - 1].length) !=
+				iso_frame_desc[index].offset))
+			break;
+
 		/* this frame fits. count it. */
 		++frame_count;
-		segment_size += xfer->urb->iso_frame_desc[index].length;
+		segment_size += iso_frame_desc[index].length;
 
 		/* move to the next isoc frame. */
 		++index;
@@ -681,7 +697,11 @@ static void wa_seg_dto_cb(struct urb *urb)
 	wa = xfer->wa;
 	dev = &wa->usb_iface->dev;
 	if (usb_pipeisoc(xfer->urb->pipe)) {
-		xfer->dto_isoc_frame_index += 1;
+		/* Alereon HWA sends all isoc frames in a single transfer. */
+		if (wa->quirks & WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC)
+			xfer->dto_isoc_frame_index += seg->isoc_frame_count;
+		else
+			xfer->dto_isoc_frame_index += 1;
 		if (xfer->dto_isoc_frame_index < seg->isoc_frame_count) {
 			data_send_done = 0;
 			holding_dto = 1; /* checked in error cases. */
@@ -1007,17 +1027,18 @@ static struct scatterlist *wa_xfer_create_subset_sg(struct scatterlist *in_sg,
 static void __wa_populate_dto_urb_isoc(struct wa_xfer *xfer,
 	struct wa_seg *seg, int curr_iso_frame)
 {
-	/*
-	 * dto urb buffer address and size pulled from
-	 * iso_frame_desc.
-	 */
-	seg->dto_urb->transfer_dma = xfer->urb->transfer_dma +
-		xfer->urb->iso_frame_desc[curr_iso_frame].offset;
 	seg->dto_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 	seg->dto_urb->sg = NULL;
 	seg->dto_urb->num_sgs = 0;
-	seg->dto_urb->transfer_buffer_length =
-		xfer->urb->iso_frame_desc[curr_iso_frame].length;
+	/* dto urb buffer address pulled from iso_frame_desc. */
+	seg->dto_urb->transfer_dma = xfer->urb->transfer_dma +
+		xfer->urb->iso_frame_desc[curr_iso_frame].offset;
+	/* The Alereon HWA sends a single URB with all isoc segs. */
+	if (xfer->wa->quirks & WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC)
+		seg->dto_urb->transfer_buffer_length = seg->isoc_size;
+	else
+		seg->dto_urb->transfer_buffer_length =
+			xfer->urb->iso_frame_desc[curr_iso_frame].length;
 }
 
 /*
@@ -1298,6 +1319,8 @@ static int __wa_seg_submit(struct wa_rpipe *rpipe, struct wa_xfer *xfer,
 	}
 	/* submit the isoc packet descriptor if present. */
 	if (seg->isoc_pack_desc_urb) {
+		struct wahc *wa = xfer->wa;
+
 		result = usb_submit_urb(seg->isoc_pack_desc_urb, GFP_ATOMIC);
 		if (result < 0) {
 			pr_err("%s: xfer %p#%u: ISO packet descriptor submit failed: %d\n",
@@ -1308,8 +1331,10 @@ static int __wa_seg_submit(struct wa_rpipe *rpipe, struct wa_xfer *xfer,
 		/*
 		 * If this segment contains more than one isoc frame, hold
 		 * onto the dto resource until we send all frames.
+		 * Only applies to non-Alereon devices.
 		 */
-		if (seg->isoc_frame_count > 1)
+		if (((wa->quirks & WUSB_QUIRK_ALEREON_HWA_CONCAT_ISOC) == 0)
+			&& (seg->isoc_frame_count > 1))
 			*dto_done = 0;
 	}
 	/* submit the out data if this is an out request. */
-- 
cgit 


From f74b75e7f920c700636cccca669c7d16d12e9202 Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Wed, 23 Oct 2013 14:44:29 -0500
Subject: usb: wusbcore: change WA_SEGS_MAX to a legal value

change WA_SEGS_MAX to a number that is legal according to the WUSB
spec.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/wusbcore/wa-xfer.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c
index 090ac308c756..ed5abe87b049 100644
--- a/drivers/usb/wusbcore/wa-xfer.c
+++ b/drivers/usb/wusbcore/wa-xfer.c
@@ -91,7 +91,8 @@
 #include "wusbhc.h"
 
 enum {
-	WA_SEGS_MAX = 255,
+	/* [WUSB] section 8.3.3 allocates 7 bits for the segment index. */
+	WA_SEGS_MAX = 128,
 };
 
 enum wa_seg_status {
@@ -588,7 +589,7 @@ static ssize_t __wa_xfer_setup_sizes(struct wa_xfer *xfer,
 			xfer->segs = 1;
 	}
 
-	if (xfer->segs >= WA_SEGS_MAX) {
+	if (xfer->segs > WA_SEGS_MAX) {
 		dev_err(dev, "BUG? oops, number of segments %zu bigger than %d\n",
 			(urb->transfer_buffer_length/xfer->seg_size),
 			WA_SEGS_MAX);
-- 
cgit 


From 488c9cd34b56a696765739c7d31dc06620305d8e Mon Sep 17 00:00:00 2001
From: Anton Tikhomirov <av.tikhomirov@samsung.com>
Date: Thu, 24 Oct 2013 11:59:41 +0900
Subject: USB: phy: samsung: Support multiple PHYs of same type

This patch removes limitation when only one PHY of specific type
could be used.

Signed-off-by: Anton Tikhomirov <av.tikhomirov@samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/phy/phy-samsung-usb2.c | 3 ++-
 drivers/usb/phy/phy-samsung-usb3.c | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/phy/phy-samsung-usb2.c b/drivers/usb/phy/phy-samsung-usb2.c
index ff70e4b19b97..b3ba86627b72 100644
--- a/drivers/usb/phy/phy-samsung-usb2.c
+++ b/drivers/usb/phy/phy-samsung-usb2.c
@@ -411,6 +411,7 @@ static int samsung_usb2phy_probe(struct platform_device *pdev)
 	sphy->drv_data		= drv_data;
 	sphy->phy.dev		= sphy->dev;
 	sphy->phy.label		= "samsung-usb2phy";
+	sphy->phy.type		= USB_PHY_TYPE_USB2;
 	sphy->phy.init		= samsung_usb2phy_init;
 	sphy->phy.shutdown	= samsung_usb2phy_shutdown;
 
@@ -426,7 +427,7 @@ static int samsung_usb2phy_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, sphy);
 
-	return usb_add_phy(&sphy->phy, USB_PHY_TYPE_USB2);
+	return usb_add_phy_dev(&sphy->phy);
 }
 
 static int samsung_usb2phy_remove(struct platform_device *pdev)
diff --git a/drivers/usb/phy/phy-samsung-usb3.c b/drivers/usb/phy/phy-samsung-usb3.c
index c6eb22213de6..cc0819248acf 100644
--- a/drivers/usb/phy/phy-samsung-usb3.c
+++ b/drivers/usb/phy/phy-samsung-usb3.c
@@ -271,6 +271,7 @@ static int samsung_usb3phy_probe(struct platform_device *pdev)
 	sphy->clk		= clk;
 	sphy->phy.dev		= sphy->dev;
 	sphy->phy.label		= "samsung-usb3phy";
+	sphy->phy.type		= USB_PHY_TYPE_USB3;
 	sphy->phy.init		= samsung_usb3phy_init;
 	sphy->phy.shutdown	= samsung_usb3phy_shutdown;
 	sphy->drv_data		= samsung_usbphy_get_driver_data(pdev);
@@ -283,7 +284,7 @@ static int samsung_usb3phy_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, sphy);
 
-	return usb_add_phy(&sphy->phy, USB_PHY_TYPE_USB3);
+	return usb_add_phy_dev(&sphy->phy);
 }
 
 static int samsung_usb3phy_remove(struct platform_device *pdev)
-- 
cgit 


From f7cd2d835e0f17cde2e5cead92be0099d7e92a7c Mon Sep 17 00:00:00 2001
From: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Date: Tue, 29 Oct 2013 12:18:37 +0000
Subject: ARM: vexpress/TC2: add support for CPU DVFS

SPC(Serial Power Controller) on TC2 also controls the CPU performance
operating points which is essential to provide CPU DVFS. The M3
microcontroller provides two sets of eight performance values, one set
for each cluster (CA15 or CA7). Each of this value contains the
frequency(kHz) and voltage(mV) at that performance level. It expects
these performance level to be passed through the SPC PERF_LVL registers.

This patch adds support to populate these performance levels from M3,
build the mapping to CPU OPPs at the boot and then use it to get and
set the CPU performance level runtime.

Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Pawel Moll <Pawel.Moll@arm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/arm/mach-vexpress/Kconfig  |  12 ++
 arch/arm/mach-vexpress/Makefile |   3 +-
 arch/arm/mach-vexpress/spc.c    | 262 +++++++++++++++++++++++++++++++++++++++-
 arch/arm/mach-vexpress/spc.h    |   2 +-
 arch/arm/mach-vexpress/tc2_pm.c |   7 +-
 5 files changed, 281 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig
index 365795447804..c77170c04fd0 100644
--- a/arch/arm/mach-vexpress/Kconfig
+++ b/arch/arm/mach-vexpress/Kconfig
@@ -66,10 +66,22 @@ config ARCH_VEXPRESS_DCSCB
 	  This is needed to provide CPU and cluster power management
 	  on RTSM implementing big.LITTLE.
 
+config ARCH_VEXPRESS_SPC
+	bool "Versatile Express Serial Power Controller (SPC)"
+	select ARCH_HAS_CPUFREQ
+	select ARCH_HAS_OPP
+	select PM_OPP
+	help
+	  The TC2 (A15x2 A7x3) versatile express core tile integrates a logic
+	  block called Serial Power Controller (SPC) that provides the interface
+	  between the dual cluster test-chip and the M3 microcontroller that
+	  carries out power management.
+
 config ARCH_VEXPRESS_TC2_PM
 	bool "Versatile Express TC2 power management"
 	depends on MCPM
 	select ARM_CCI
+	select ARCH_VEXPRESS_SPC
 	help
 	  Support for CPU and cluster power management on Versatile Express
 	  with a TC2 (A15x2 A7x3) big.LITTLE core tile.
diff --git a/arch/arm/mach-vexpress/Makefile b/arch/arm/mach-vexpress/Makefile
index 505e64ab3eae..0997e0b7494c 100644
--- a/arch/arm/mach-vexpress/Makefile
+++ b/arch/arm/mach-vexpress/Makefile
@@ -8,7 +8,8 @@ obj-y					:= v2m.o
 obj-$(CONFIG_ARCH_VEXPRESS_CA9X4)	+= ct-ca9x4.o
 obj-$(CONFIG_ARCH_VEXPRESS_DCSCB)	+= dcscb.o	dcscb_setup.o
 CFLAGS_dcscb.o				+= -march=armv7-a
-obj-$(CONFIG_ARCH_VEXPRESS_TC2_PM)	+= tc2_pm.o spc.o
+obj-$(CONFIG_ARCH_VEXPRESS_SPC)		+= spc.o
+obj-$(CONFIG_ARCH_VEXPRESS_TC2_PM)	+= tc2_pm.o
 CFLAGS_tc2_pm.o				+= -march=armv7-a
 obj-$(CONFIG_SMP)			+= platsmp.o
 obj-$(CONFIG_HOTPLUG_CPU)		+= hotplug.o
diff --git a/arch/arm/mach-vexpress/spc.c b/arch/arm/mach-vexpress/spc.c
index eefb029197ca..de0ca3615c36 100644
--- a/arch/arm/mach-vexpress/spc.c
+++ b/arch/arm/mach-vexpress/spc.c
@@ -17,14 +17,27 @@
  * GNU General Public License for more details.
  */
 
+#include <linux/delay.h>
 #include <linux/err.h>
+#include <linux/interrupt.h>
 #include <linux/io.h>
+#include <linux/pm_opp.h>
 #include <linux/slab.h>
+#include <linux/semaphore.h>
 
 #include <asm/cacheflush.h>
 
 #define SPCLOG "vexpress-spc: "
 
+#define PERF_LVL_A15		0x00
+#define PERF_REQ_A15		0x04
+#define PERF_LVL_A7		0x08
+#define PERF_REQ_A7		0x0c
+#define COMMS			0x10
+#define COMMS_REQ		0x14
+#define PWC_STATUS		0x18
+#define PWC_FLAG		0x1c
+
 /* SPC wake-up IRQs status and mask */
 #define WAKE_INT_MASK		0x24
 #define WAKE_INT_RAW		0x28
@@ -36,12 +49,45 @@
 #define A15_BX_ADDR0		0x68
 #define A7_BX_ADDR0		0x78
 
+/* SPC system config interface registers */
+#define SYSCFG_WDATA		0x70
+#define SYSCFG_RDATA		0x74
+
+/* A15/A7 OPP virtual register base */
+#define A15_PERFVAL_BASE	0xC10
+#define A7_PERFVAL_BASE		0xC30
+
+/* Config interface control bits */
+#define SYSCFG_START		(1 << 31)
+#define SYSCFG_SCC		(6 << 20)
+#define SYSCFG_STAT		(14 << 20)
+
 /* wake-up interrupt masks */
 #define GBL_WAKEUP_INT_MSK	(0x3 << 10)
 
 /* TC2 static dual-cluster configuration */
 #define MAX_CLUSTERS		2
 
+/*
+ * Even though the SPC takes max 3-5 ms to complete any OPP/COMMS
+ * operation, the operation could start just before jiffie is about
+ * to be incremented. So setting timeout value of 20ms = 2jiffies@100Hz
+ */
+#define TIMEOUT_US	20000
+
+#define MAX_OPPS	8
+#define CA15_DVFS	0
+#define CA7_DVFS	1
+#define SPC_SYS_CFG	2
+#define STAT_COMPLETE(type)	((1 << 0) << (type << 2))
+#define STAT_ERR(type)		((1 << 1) << (type << 2))
+#define RESPONSE_MASK(type)	(STAT_COMPLETE(type) | STAT_ERR(type))
+
+struct ve_spc_opp {
+	unsigned long freq;
+	unsigned long u_volt;
+};
+
 struct ve_spc_drvdata {
 	void __iomem *baseaddr;
 	/*
@@ -49,6 +95,12 @@ struct ve_spc_drvdata {
 	 * It corresponds to A15 processors MPIDR[15:8] bitfield
 	 */
 	u32 a15_clusid;
+	uint32_t cur_rsp_mask;
+	uint32_t cur_rsp_stat;
+	struct semaphore sem;
+	struct completion done;
+	struct ve_spc_opp *opps[MAX_CLUSTERS];
+	int num_opps[MAX_CLUSTERS];
 };
 
 static struct ve_spc_drvdata *info;
@@ -157,8 +209,197 @@ void ve_spc_powerdown(u32 cluster, bool enable)
 	writel_relaxed(enable, info->baseaddr + pwdrn_reg);
 }
 
-int __init ve_spc_init(void __iomem *baseaddr, u32 a15_clusid)
+static int ve_spc_get_performance(int cluster, u32 *freq)
+{
+	struct ve_spc_opp *opps = info->opps[cluster];
+	u32 perf_cfg_reg = 0;
+	u32 perf;
+
+	perf_cfg_reg = cluster_is_a15(cluster) ? PERF_LVL_A15 : PERF_LVL_A7;
+
+	perf = readl_relaxed(info->baseaddr + perf_cfg_reg);
+	if (perf >= info->num_opps[cluster])
+		return -EINVAL;
+
+	opps += perf;
+	*freq = opps->freq;
+
+	return 0;
+}
+
+/* find closest match to given frequency in OPP table */
+static int ve_spc_round_performance(int cluster, u32 freq)
+{
+	int idx, max_opp = info->num_opps[cluster];
+	struct ve_spc_opp *opps = info->opps[cluster];
+	u32 fmin = 0, fmax = ~0, ftmp;
+
+	freq /= 1000; /* OPP entries in kHz */
+	for (idx = 0; idx < max_opp; idx++, opps++) {
+		ftmp = opps->freq;
+		if (ftmp >= freq) {
+			if (ftmp <= fmax)
+				fmax = ftmp;
+		} else {
+			if (ftmp >= fmin)
+				fmin = ftmp;
+		}
+	}
+	if (fmax != ~0)
+		return fmax * 1000;
+	else
+		return fmin * 1000;
+}
+
+static int ve_spc_find_performance_index(int cluster, u32 freq)
+{
+	int idx, max_opp = info->num_opps[cluster];
+	struct ve_spc_opp *opps = info->opps[cluster];
+
+	for (idx = 0; idx < max_opp; idx++, opps++)
+		if (opps->freq == freq)
+			break;
+	return (idx == max_opp) ? -EINVAL : idx;
+}
+
+static int ve_spc_waitforcompletion(int req_type)
+{
+	int ret = wait_for_completion_interruptible_timeout(
+			&info->done, usecs_to_jiffies(TIMEOUT_US));
+	if (ret == 0)
+		ret = -ETIMEDOUT;
+	else if (ret > 0)
+		ret = info->cur_rsp_stat & STAT_COMPLETE(req_type) ? 0 : -EIO;
+	return ret;
+}
+
+static int ve_spc_set_performance(int cluster, u32 freq)
+{
+	u32 perf_cfg_reg, perf_stat_reg;
+	int ret, perf, req_type;
+
+	if (cluster_is_a15(cluster)) {
+		req_type = CA15_DVFS;
+		perf_cfg_reg = PERF_LVL_A15;
+		perf_stat_reg = PERF_REQ_A15;
+	} else {
+		req_type = CA7_DVFS;
+		perf_cfg_reg = PERF_LVL_A7;
+		perf_stat_reg = PERF_REQ_A7;
+	}
+
+	perf = ve_spc_find_performance_index(cluster, freq);
+
+	if (perf < 0)
+		return perf;
+
+	if (down_timeout(&info->sem, usecs_to_jiffies(TIMEOUT_US)))
+		return -ETIME;
+
+	init_completion(&info->done);
+	info->cur_rsp_mask = RESPONSE_MASK(req_type);
+
+	writel(perf, info->baseaddr + perf_cfg_reg);
+	ret = ve_spc_waitforcompletion(req_type);
+
+	info->cur_rsp_mask = 0;
+	up(&info->sem);
+
+	return ret;
+}
+
+static int ve_spc_read_sys_cfg(int func, int offset, uint32_t *data)
+{
+	int ret;
+
+	if (down_timeout(&info->sem, usecs_to_jiffies(TIMEOUT_US)))
+		return -ETIME;
+
+	init_completion(&info->done);
+	info->cur_rsp_mask = RESPONSE_MASK(SPC_SYS_CFG);
+
+	/* Set the control value */
+	writel(SYSCFG_START | func | offset >> 2, info->baseaddr + COMMS);
+	ret = ve_spc_waitforcompletion(SPC_SYS_CFG);
+
+	if (ret == 0)
+		*data = readl(info->baseaddr + SYSCFG_RDATA);
+
+	info->cur_rsp_mask = 0;
+	up(&info->sem);
+
+	return ret;
+}
+
+static irqreturn_t ve_spc_irq_handler(int irq, void *data)
+{
+	struct ve_spc_drvdata *drv_data = data;
+	uint32_t status = readl_relaxed(drv_data->baseaddr + PWC_STATUS);
+
+	if (info->cur_rsp_mask & status) {
+		info->cur_rsp_stat = status;
+		complete(&drv_data->done);
+	}
+
+	return IRQ_HANDLED;
+}
+
+/*
+ *  +--------------------------+
+ *  | 31      20 | 19        0 |
+ *  +--------------------------+
+ *  |   u_volt   |  freq(kHz)  |
+ *  +--------------------------+
+ */
+#define MULT_FACTOR	20
+#define VOLT_SHIFT	20
+#define FREQ_MASK	(0xFFFFF)
+static int ve_spc_populate_opps(uint32_t cluster)
+{
+	uint32_t data = 0, off, ret, idx;
+	struct ve_spc_opp *opps;
+
+	opps = kzalloc(sizeof(*opps) * MAX_OPPS, GFP_KERNEL);
+	if (!opps)
+		return -ENOMEM;
+
+	info->opps[cluster] = opps;
+
+	off = cluster_is_a15(cluster) ? A15_PERFVAL_BASE : A7_PERFVAL_BASE;
+	for (idx = 0; idx < MAX_OPPS; idx++, off += 4, opps++) {
+		ret = ve_spc_read_sys_cfg(SYSCFG_SCC, off, &data);
+		if (!ret) {
+			opps->freq = (data & FREQ_MASK) * MULT_FACTOR;
+			opps->u_volt = data >> VOLT_SHIFT;
+		} else {
+			break;
+		}
+	}
+	info->num_opps[cluster] = idx;
+
+	return ret;
+}
+
+static int ve_init_opp_table(struct device *cpu_dev)
+{
+	int cluster = topology_physical_package_id(cpu_dev->id);
+	int idx, ret = 0, max_opp = info->num_opps[cluster];
+	struct ve_spc_opp *opps = info->opps[cluster];
+
+	for (idx = 0; idx < max_opp; idx++, opps++) {
+		ret = dev_pm_opp_add(cpu_dev, opps->freq * 1000, opps->u_volt);
+		if (ret) {
+			dev_warn(cpu_dev, "failed to add opp %lu %lu\n",
+				 opps->freq, opps->u_volt);
+			return ret;
+		}
+	}
+	return ret;
+}
+
+int __init ve_spc_init(void __iomem *baseaddr, u32 a15_clusid, int irq)
 {
+	int ret;
 	info = kzalloc(sizeof(*info), GFP_KERNEL);
 	if (!info) {
 		pr_err(SPCLOG "unable to allocate mem\n");
@@ -168,6 +409,25 @@ int __init ve_spc_init(void __iomem *baseaddr, u32 a15_clusid)
 	info->baseaddr = baseaddr;
 	info->a15_clusid = a15_clusid;
 
+	if (irq <= 0) {
+		pr_err(SPCLOG "Invalid IRQ %d\n", irq);
+		kfree(info);
+		return -EINVAL;
+	}
+
+	init_completion(&info->done);
+
+	readl_relaxed(info->baseaddr + PWC_STATUS);
+
+	ret = request_irq(irq, ve_spc_irq_handler, IRQF_TRIGGER_HIGH
+				| IRQF_ONESHOT, "vexpress-spc", info);
+	if (ret) {
+		pr_err(SPCLOG "IRQ %d request failed\n", irq);
+		kfree(info);
+		return -ENODEV;
+	}
+
+	sema_init(&info->sem, 1);
 	/*
 	 * Multi-cluster systems may need this data when non-coherent, during
 	 * cluster power-up/power-down. Make sure driver info reaches main
diff --git a/arch/arm/mach-vexpress/spc.h b/arch/arm/mach-vexpress/spc.h
index 5f7e4a446a17..dbd44c3720f9 100644
--- a/arch/arm/mach-vexpress/spc.h
+++ b/arch/arm/mach-vexpress/spc.h
@@ -15,7 +15,7 @@
 #ifndef __SPC_H_
 #define __SPC_H_
 
-int __init ve_spc_init(void __iomem *base, u32 a15_clusid);
+int __init ve_spc_init(void __iomem *base, u32 a15_clusid, int irq);
 void ve_spc_global_wakeup_irq(bool set);
 void ve_spc_cpu_wakeup_irq(u32 cluster, u32 cpu, bool set);
 void ve_spc_set_resume_addr(u32 cluster, u32 cpu, u32 addr);
diff --git a/arch/arm/mach-vexpress/tc2_pm.c b/arch/arm/mach-vexpress/tc2_pm.c
index e6eb48192912..d38130aba464 100644
--- a/arch/arm/mach-vexpress/tc2_pm.c
+++ b/arch/arm/mach-vexpress/tc2_pm.c
@@ -16,6 +16,7 @@
 #include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/spinlock.h>
 #include <linux/errno.h>
 #include <linux/irqchip/arm-gic.h>
@@ -311,7 +312,7 @@ static void __naked tc2_pm_power_up_setup(unsigned int affinity_level)
 
 static int __init tc2_pm_init(void)
 {
-	int ret;
+	int ret, irq;
 	void __iomem *scc;
 	u32 a15_cluster_id, a7_cluster_id, sys_info;
 	struct device_node *np;
@@ -336,13 +337,15 @@ static int __init tc2_pm_init(void)
 	tc2_nr_cpus[a15_cluster_id] = (sys_info >> 16) & 0xf;
 	tc2_nr_cpus[a7_cluster_id] = (sys_info >> 20) & 0xf;
 
+	irq = irq_of_parse_and_map(np, 0);
+
 	/*
 	 * A subset of the SCC registers is also used to communicate
 	 * with the SPC (power controller). We need to be able to
 	 * drive it very early in the boot process to power up
 	 * processors, so we initialize the SPC driver here.
 	 */
-	ret = ve_spc_init(scc + SPC_BASE, a15_cluster_id);
+	ret = ve_spc_init(scc + SPC_BASE, a15_cluster_id, irq);
 	if (ret)
 		return ret;
 
-- 
cgit 


From 4d910d5bb56c870e5a737b71d4130ec38dc4faea Mon Sep 17 00:00:00 2001
From: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Date: Tue, 29 Oct 2013 12:18:38 +0000
Subject: ARM: vexpress/TC2: add cpu clock support

On TC2, the cpu clocks are controlled by the external M3 microcontroller
and SPC provides the interface between the CPU and the power controller.

The generic cpufreq drivers use the clock APIs to get the cpu clocks.
This patch add virtual spc clocks for all the cpus to control the cpu
operating frequency via the clock framework.

Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Pawel Moll <Pawel.Moll@arm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/arm/mach-vexpress/spc.c | 102 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 102 insertions(+)

diff --git a/arch/arm/mach-vexpress/spc.c b/arch/arm/mach-vexpress/spc.c
index de0ca3615c36..3532e26c9117 100644
--- a/arch/arm/mach-vexpress/spc.c
+++ b/arch/arm/mach-vexpress/spc.c
@@ -17,6 +17,9 @@
  * GNU General Public License for more details.
  */
 
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/cpu.h>
 #include <linux/delay.h>
 #include <linux/err.h>
 #include <linux/interrupt.h>
@@ -438,3 +441,102 @@ int __init ve_spc_init(void __iomem *baseaddr, u32 a15_clusid, int irq)
 
 	return 0;
 }
+
+struct clk_spc {
+	struct clk_hw hw;
+	int cluster;
+};
+
+#define to_clk_spc(spc) container_of(spc, struct clk_spc, hw)
+static unsigned long spc_recalc_rate(struct clk_hw *hw,
+		unsigned long parent_rate)
+{
+	struct clk_spc *spc = to_clk_spc(hw);
+	u32 freq;
+
+	if (ve_spc_get_performance(spc->cluster, &freq))
+		return -EIO;
+
+	return freq * 1000;
+}
+
+static long spc_round_rate(struct clk_hw *hw, unsigned long drate,
+		unsigned long *parent_rate)
+{
+	struct clk_spc *spc = to_clk_spc(hw);
+
+	return ve_spc_round_performance(spc->cluster, drate);
+}
+
+static int spc_set_rate(struct clk_hw *hw, unsigned long rate,
+		unsigned long parent_rate)
+{
+	struct clk_spc *spc = to_clk_spc(hw);
+
+	return ve_spc_set_performance(spc->cluster, rate / 1000);
+}
+
+static struct clk_ops clk_spc_ops = {
+	.recalc_rate = spc_recalc_rate,
+	.round_rate = spc_round_rate,
+	.set_rate = spc_set_rate,
+};
+
+static struct clk *ve_spc_clk_register(struct device *cpu_dev)
+{
+	struct clk_init_data init;
+	struct clk_spc *spc;
+
+	spc = kzalloc(sizeof(*spc), GFP_KERNEL);
+	if (!spc) {
+		pr_err("could not allocate spc clk\n");
+		return ERR_PTR(-ENOMEM);
+	}
+
+	spc->hw.init = &init;
+	spc->cluster = topology_physical_package_id(cpu_dev->id);
+
+	init.name = dev_name(cpu_dev);
+	init.ops = &clk_spc_ops;
+	init.flags = CLK_IS_ROOT | CLK_GET_RATE_NOCACHE;
+	init.num_parents = 0;
+
+	return devm_clk_register(cpu_dev, &spc->hw);
+}
+
+static int __init ve_spc_clk_init(void)
+{
+	int cpu;
+	struct clk *clk;
+
+	if (!info)
+		return 0; /* Continue only if SPC is initialised */
+
+	if (ve_spc_populate_opps(0) || ve_spc_populate_opps(1)) {
+		pr_err("failed to build OPP table\n");
+		return -ENODEV;
+	}
+
+	for_each_possible_cpu(cpu) {
+		struct device *cpu_dev = get_cpu_device(cpu);
+		if (!cpu_dev) {
+			pr_warn("failed to get cpu%d device\n", cpu);
+			continue;
+		}
+		clk = ve_spc_clk_register(cpu_dev);
+		if (IS_ERR(clk)) {
+			pr_warn("failed to register cpu%d clock\n", cpu);
+			continue;
+		}
+		if (clk_register_clkdev(clk, NULL, dev_name(cpu_dev))) {
+			pr_warn("failed to register cpu%d clock lookup\n", cpu);
+			continue;
+		}
+
+		if (ve_init_opp_table(cpu_dev))
+			pr_warn("failed to initialise cpu%d opp table\n", cpu);
+	}
+
+	return 0;
+}
+module_init(ve_spc_clk_init);
-- 
cgit 


From 47ac9aa165540b43deb3582f186073884de1cf3b Mon Sep 17 00:00:00 2001
From: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Date: Tue, 29 Oct 2013 12:18:39 +0000
Subject: cpufreq: arm_big_little: add vexpress SPC interface driver

The TC2(i.e. CA15_A7) Versatile Express has external Cortex M3 based
power controller which is responsible for CPU DVFS and SPC provides
the interface for the same.

This patch adds a tiny interface driver to check if OPPs are
initialised by SPC platform code and register the arm_big_little
cpufreq driver.

Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/Kconfig.arm            |  8 ++++
 drivers/cpufreq/Makefile               |  1 +
 drivers/cpufreq/vexpress-spc-cpufreq.c | 70 ++++++++++++++++++++++++++++++++++
 3 files changed, 79 insertions(+)
 create mode 100644 drivers/cpufreq/vexpress-spc-cpufreq.c

diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 701ec95ce954..ce52ed949249 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -224,3 +224,11 @@ config ARM_TEGRA_CPUFREQ
 	default y
 	help
 	  This adds the CPUFreq driver support for TEGRA SOCs.
+
+config ARM_VEXPRESS_SPC_CPUFREQ
+        tristate "Versatile Express SPC based CPUfreq driver"
+        select ARM_BIG_LITTLE_CPUFREQ
+        depends on ARCH_VEXPRESS_SPC
+        help
+          This add the CPUfreq driver support for Versatile Express
+	  big.LITTLE platforms using SPC for power management.
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index b7948bbbbf1f..74945652dd7a 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -74,6 +74,7 @@ obj-$(CONFIG_ARM_SA1100_CPUFREQ)	+= sa1100-cpufreq.o
 obj-$(CONFIG_ARM_SA1110_CPUFREQ)	+= sa1110-cpufreq.o
 obj-$(CONFIG_ARM_SPEAR_CPUFREQ)		+= spear-cpufreq.o
 obj-$(CONFIG_ARM_TEGRA_CPUFREQ)		+= tegra-cpufreq.o
+obj-$(CONFIG_ARM_VEXPRESS_SPC_CPUFREQ)	+= vexpress-spc-cpufreq.o
 
 ##################################################################################
 # PowerPC platform drivers
diff --git a/drivers/cpufreq/vexpress-spc-cpufreq.c b/drivers/cpufreq/vexpress-spc-cpufreq.c
new file mode 100644
index 000000000000..7f7c9c01b44e
--- /dev/null
+++ b/drivers/cpufreq/vexpress-spc-cpufreq.c
@@ -0,0 +1,70 @@
+/*
+ * Versatile Express SPC CPUFreq Interface driver
+ *
+ * It provides necessary ops to arm_big_little cpufreq driver.
+ *
+ * Copyright (C) 2013 ARM Ltd.
+ * Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/cpufreq.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm_opp.h>
+#include <linux/types.h>
+
+#include "arm_big_little.h"
+
+static int ve_spc_init_opp_table(struct device *cpu_dev)
+{
+	/*
+	 * platform specific SPC code must initialise the opp table
+	 * so just check if the OPP count is non-zero
+	 */
+	return dev_pm_opp_get_opp_count(cpu_dev) <= 0;
+}
+
+static int ve_spc_get_transition_latency(struct device *cpu_dev)
+{
+	return 1000000; /* 1 ms */
+}
+
+static struct cpufreq_arm_bL_ops ve_spc_cpufreq_ops = {
+	.name	= "vexpress-spc",
+	.get_transition_latency = ve_spc_get_transition_latency,
+	.init_opp_table = ve_spc_init_opp_table,
+};
+
+static int ve_spc_cpufreq_probe(struct platform_device *pdev)
+{
+	return bL_cpufreq_register(&ve_spc_cpufreq_ops);
+}
+
+static int ve_spc_cpufreq_remove(struct platform_device *pdev)
+{
+	bL_cpufreq_unregister(&ve_spc_cpufreq_ops);
+	return 0;
+}
+
+static struct platform_driver ve_spc_cpufreq_platdrv = {
+	.driver = {
+		.name	= "vexpress-spc-cpufreq",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= ve_spc_cpufreq_probe,
+	.remove		= ve_spc_cpufreq_remove,
+};
+module_platform_driver(ve_spc_cpufreq_platdrv);
+
+MODULE_LICENSE("GPL");
-- 
cgit 


From 9e941b6f42cc2b0d53011d62d639140c84116f59 Mon Sep 17 00:00:00 2001
From: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Date: Tue, 29 Oct 2013 12:18:40 +0000
Subject: ARM: vexpress/TC2: register vexpress-spc cpufreq device

This patch adds vexpress-spc platform device to enables the vexpress
SPC cpufreq interface driver.

Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Acked-by: Pawel Moll <Pawel.Moll@arm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/arm/mach-vexpress/spc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-vexpress/spc.c b/arch/arm/mach-vexpress/spc.c
index 3532e26c9117..033d34dcbd3f 100644
--- a/arch/arm/mach-vexpress/spc.c
+++ b/arch/arm/mach-vexpress/spc.c
@@ -24,6 +24,7 @@
 #include <linux/err.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
+#include <linux/platform_device.h>
 #include <linux/pm_opp.h>
 #include <linux/slab.h>
 #include <linux/semaphore.h>
@@ -537,6 +538,7 @@ static int __init ve_spc_clk_init(void)
 			pr_warn("failed to initialise cpu%d opp table\n", cpu);
 	}
 
+	platform_device_register_simple("vexpress-spc-cpufreq", -1, NULL, 0);
 	return 0;
 }
 module_init(ve_spc_clk_init);
-- 
cgit 


From 9d3bd7684645834ede59d285af1d70ccabee9bf3 Mon Sep 17 00:00:00 2001
From: Huang Rui <ray.huang@amd.com>
Date: Mon, 28 Oct 2013 23:31:32 +0800
Subject: usb: usbtest: support bos descriptor test for usb 3.0

In Test 9 of usbtest module, it is used for performing chapter 9 tests N
times. This patch adds to support getting bos descriptor test scenario for
USB 3.0.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/misc/usbtest.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index 1fdd88f382cc..e7235d5cce85 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -689,6 +689,19 @@ static int ch9_postconfig(struct usbtest_dev *dev)
 		return (retval < 0) ? retval : -EDOM;
 	}
 
+	/*
+	 * there's always [9.4.3] a bos device descriptor [9.6.2] in USB
+	 * 3.0 spec
+	 */
+	if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0300) {
+		retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf,
+				sizeof(*udev->bos->desc));
+		if (retval != sizeof(*udev->bos->desc)) {
+			dev_err(&iface->dev, "bos descriptor --> %d\n", retval);
+			return (retval < 0) ? retval : -EDOM;
+		}
+	}
+
 	/* there's always [9.4.3] at least one config descriptor [9.6.3] */
 	for (i = 0; i < udev->descriptor.bNumConfigurations; i++) {
 		retval = usb_get_descriptor(udev, USB_DT_CONFIG, i,
-- 
cgit 


From 29fc2bc75393864bbc9b90a7a13a0d0e11c6f41e Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sat, 26 Oct 2013 20:41:53 -0700
Subject: printk: pr_debug_ratelimited: check state first to reduce "callbacks
 suppressed" messages

pr_debug_ratelimited should be coded similarly to dev_dbg_ratelimited
to reduce the "callbacks suppressed" messages.

Add #include <linux/dynamic_debug.h> to printk.h. Unfortunately, this
new #include must be after the prototype/declaration of function printk.

It may be better to split out these _ratelimited declarations into
a separate file one day.

Any use of these pr_<foo>_ratelimited functions must also have another
specific #include <ratelimited.h>.  Most users have this done indirectly
via #include <linux/kernel.h>

printk.h may not #include <linux/ratelimit.h> as it causes circular
dependencies and compilation failures.

Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Krzysztof Mazur <krzysiek@podlesie.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/printk.h | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/include/linux/printk.h b/include/linux/printk.h
index e6131a782481..694925837a16 100644
--- a/include/linux/printk.h
+++ b/include/linux/printk.h
@@ -233,6 +233,8 @@ extern asmlinkage void dump_stack(void) __cold;
 	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #endif
 
+#include <linux/dynamic_debug.h>
+
 /* If you are writing a driver, please use dev_dbg instead */
 #if defined(CONFIG_DYNAMIC_DEBUG)
 /* dynamic_pr_debug() uses pr_fmt() internally so we don't need it here */
@@ -343,7 +345,19 @@ extern asmlinkage void dump_stack(void) __cold;
 #endif
 
 /* If you are writing a driver, please use dev_dbg instead */
-#if defined(DEBUG)
+#if defined(CONFIG_DYNAMIC_DEBUG)
+/* descriptor check is first to prevent flooding with "callbacks suppressed" */
+#define pr_debug_ratelimited(fmt, ...)					\
+do {									\
+	static DEFINE_RATELIMIT_STATE(_rs,				\
+				      DEFAULT_RATELIMIT_INTERVAL,	\
+				      DEFAULT_RATELIMIT_BURST);		\
+	DEFINE_DYNAMIC_DEBUG_METADATA(descriptor, fmt);			\
+	if (unlikely(descriptor.flags & _DPRINTK_FLAGS_PRINT) &&	\
+	    __ratelimit(&_rs))						\
+		__dynamic_pr_debug(&descriptor, fmt, ##__VA_ARGS__);	\
+} while (0)
+#elif defined(DEBUG)
 #define pr_debug_ratelimited(fmt, ...)					\
 	printk_ratelimited(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #else
-- 
cgit 


From 32e24930fb71c47a1366325b6f139e039cacaca4 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Sat, 26 Oct 2013 20:49:24 -0700
Subject: usbatm: Fix dynamic_debug / ratelimited atm_dbg and atm_rldbg macros

Fix atm_dbg to use normal pr_debug not dynamic_pr_debug
because dynamic_pr_debug may not be compiled in at all.

Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: Krzysztof Mazur <krzysiek@podlesie.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/atm/usbatm.h | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/usb/atm/usbatm.h b/drivers/usb/atm/usbatm.h
index 5651231a7437..f3eecd967a8a 100644
--- a/drivers/usb/atm/usbatm.h
+++ b/drivers/usb/atm/usbatm.h
@@ -34,6 +34,7 @@
 #include <linux/stringify.h>
 #include <linux/usb.h>
 #include <linux/mutex.h>
+#include <linux/ratelimit.h>
 
 /*
 #define VERBOSE_DEBUG
@@ -59,13 +60,12 @@
 	atm_printk(KERN_INFO, instance , format , ## arg)
 #define atm_warn(instance, format, arg...)	\
 	atm_printk(KERN_WARNING, instance , format , ## arg)
-#define atm_dbg(instance, format, arg...)		\
-	dynamic_pr_debug("ATM dev %d: " format ,	\
-	(instance)->atm_dev->number , ## arg)
-#define atm_rldbg(instance, format, arg...)		\
-	if (printk_ratelimit())				\
-		atm_dbg(instance , format , ## arg)
-
+#define atm_dbg(instance, format, ...)					\
+	pr_debug("ATM dev %d: " format,					\
+		 (instance)->atm_dev->number, ##__VA_ARGS__)
+#define atm_rldbg(instance, format, ...)				\
+	pr_debug_ratelimited("ATM dev %d: " format,			\
+			     (instance)->atm_dev->number, ##__VA_ARGS__)
 
 /* flags, set by mini-driver in bind() */
 
-- 
cgit 


From e6418fcc8adaa5c3911295cbe7ddd368b9788616 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Sun, 27 Oct 2013 21:53:40 +0000
Subject: uio: Pass pointers to virt_to_page(), not integers

Most architectures define virt_to_page() as a macro that casts its
argument such that an argument of type unsigned long will be accepted
without complaint.  However, the proper type is void *, and passing
unsigned long results in a warning on MIPS.

Compile-tested only.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/uio/uio.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index c8e45add506e..e221f13fcb61 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -605,6 +605,7 @@ static int uio_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 	struct uio_device *idev = vma->vm_private_data;
 	struct page *page;
 	unsigned long offset;
+	void *addr;
 
 	int mi = uio_find_mem_index(vma);
 	if (mi < 0)
@@ -616,10 +617,11 @@ static int uio_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 	 */
 	offset = (vmf->pgoff - mi) << PAGE_SHIFT;
 
+	addr = (void *)(unsigned long)idev->info->mem[mi].addr + offset;
 	if (idev->info->mem[mi].memtype == UIO_MEM_LOGICAL)
-		page = virt_to_page(idev->info->mem[mi].addr + offset);
+		page = virt_to_page(addr);
 	else
-		page = vmalloc_to_page((void *)(unsigned long)idev->info->mem[mi].addr + offset);
+		page = vmalloc_to_page(addr);
 	get_page(page);
 	vmf->page = page;
 	return 0;
-- 
cgit 


From 7cf1a122b2f3bda5af837a2dbd7564f695301af0 Mon Sep 17 00:00:00 2001
From: Markus Pargmann <mpa@pengutronix.de>
Date: Tue, 29 Oct 2013 09:19:23 +0100
Subject: w1-gpio: Detect of_gpio_error for first gpio

The first DT gpio is necessary for this driver, but errors returned for
of_get_gpio are ignored.

This patch adds a return value check for the first of_get_gpio.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/w1/masters/w1-gpio.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/w1/masters/w1-gpio.c b/drivers/w1/masters/w1-gpio.c
index f54ece268c98..ae53e8832845 100644
--- a/drivers/w1/masters/w1-gpio.c
+++ b/drivers/w1/masters/w1-gpio.c
@@ -58,6 +58,7 @@ static int w1_gpio_probe_dt(struct platform_device *pdev)
 {
 	struct w1_gpio_platform_data *pdata = pdev->dev.platform_data;
 	struct device_node *np = pdev->dev.of_node;
+	int gpio;
 
 	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
 	if (!pdata)
@@ -66,7 +67,11 @@ static int w1_gpio_probe_dt(struct platform_device *pdev)
 	if (of_get_property(np, "linux,open-drain", NULL))
 		pdata->is_open_drain = 1;
 
-	pdata->pin = of_get_gpio(np, 0);
+	gpio = of_get_gpio(np, 0);
+	if (gpio < 0)
+		return gpio;
+	pdata->pin = gpio;
+
 	pdata->ext_pullup_enable_pin = of_get_gpio(np, 1);
 	pdev->dev.platform_data = pdata;
 
-- 
cgit 


From d27f25c9c216dc9f9a320fe78f729aebdebcae50 Mon Sep 17 00:00:00 2001
From: Markus Pargmann <mpa@pengutronix.de>
Date: Tue, 29 Oct 2013 09:19:24 +0100
Subject: w1-gpio: Use devm_* functions

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/w1/masters/w1-gpio.c | 28 +++++++++-------------------
 1 file changed, 9 insertions(+), 19 deletions(-)

diff --git a/drivers/w1/masters/w1-gpio.c b/drivers/w1/masters/w1-gpio.c
index ae53e8832845..264ad1c583ab 100644
--- a/drivers/w1/masters/w1-gpio.c
+++ b/drivers/w1/masters/w1-gpio.c
@@ -99,25 +99,27 @@ static int w1_gpio_probe(struct platform_device *pdev)
 		return -ENXIO;
 	}
 
-	master = kzalloc(sizeof(struct w1_bus_master), GFP_KERNEL);
+	master = devm_kzalloc(&pdev->dev, sizeof(struct w1_bus_master),
+			GFP_KERNEL);
 	if (!master) {
 		dev_err(&pdev->dev, "Out of memory\n");
 		return -ENOMEM;
 	}
 
-	err = gpio_request(pdata->pin, "w1");
+	err = devm_gpio_request(&pdev->dev, pdata->pin, "w1");
 	if (err) {
 		dev_err(&pdev->dev, "gpio_request (pin) failed\n");
-		goto free_master;
+		return err;
 	}
 
 	if (gpio_is_valid(pdata->ext_pullup_enable_pin)) {
-		err = gpio_request_one(pdata->ext_pullup_enable_pin,
-				       GPIOF_INIT_LOW, "w1 pullup");
+		err = devm_gpio_request_one(&pdev->dev,
+				pdata->ext_pullup_enable_pin, GPIOF_INIT_LOW,
+				"w1 pullup");
 		if (err < 0) {
 			dev_err(&pdev->dev, "gpio_request_one "
 					"(ext_pullup_enable_pin) failed\n");
-			goto free_gpio;
+			return err;
 		}
 	}
 
@@ -135,7 +137,7 @@ static int w1_gpio_probe(struct platform_device *pdev)
 	err = w1_add_master_device(master);
 	if (err) {
 		dev_err(&pdev->dev, "w1_add_master device failed\n");
-		goto free_gpio_ext_pu;
+		return err;
 	}
 
 	if (pdata->enable_external_pullup)
@@ -147,16 +149,6 @@ static int w1_gpio_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, master);
 
 	return 0;
-
- free_gpio_ext_pu:
-	if (gpio_is_valid(pdata->ext_pullup_enable_pin))
-		gpio_free(pdata->ext_pullup_enable_pin);
- free_gpio:
-	gpio_free(pdata->pin);
- free_master:
-	kfree(master);
-
-	return err;
 }
 
 static int w1_gpio_remove(struct platform_device *pdev)
@@ -171,8 +163,6 @@ static int w1_gpio_remove(struct platform_device *pdev)
 		gpio_set_value(pdata->ext_pullup_enable_pin, 0);
 
 	w1_remove_master_device(master);
-	gpio_free(pdata->pin);
-	kfree(master);
 
 	return 0;
 }
-- 
cgit 


From d4f9e7b3d12e92ede642f6f4fc7d959f06da8ccc Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Tue, 29 Oct 2013 23:37:36 +0100
Subject: serial: sh-sci: Enable the driver on all ARM platforms

Renesas ARM platforms are transitioning from single-platform to
multi-platform kernels using the new ARCH_SHMOBILE_MULTI. Make the
driver available on all ARM platforms to enable it on both ARCH_SHMOBILE
and ARCH_SHMOBILE_MULTI, and increase build testing coverage with
COMPILE_TEST.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 701ca60076ed..a3817ab8602f 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -709,7 +709,7 @@ config SERIAL_IP22_ZILOG_CONSOLE
 
 config SERIAL_SH_SCI
 	tristate "SuperH SCI(F) serial port support"
-	depends on HAVE_CLK && (SUPERH || ARCH_SHMOBILE)
+	depends on HAVE_CLK && (SUPERH || ARM || COMPILE_TEST)
 	select SERIAL_CORE
 
 config SERIAL_SH_SCI_NR_UARTS
-- 
cgit 


From 73e06865ead1bec8d1c179e1c647dc77adde9116 Mon Sep 17 00:00:00 2001
From: Greg Suarez <gpsuarez2512@gmail.com>
Date: Tue, 29 Oct 2013 10:29:10 -0700
Subject: USB: cdc-wdm: support back-to-back USB_CDC_NOTIFY_RESPONSE_AVAILABLE
 notifications
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Some MBIM devices send back-to-back USB_CDC_NOTIFY_RESPONSE_AVAILABLE notifications
when sending a message over multiple fragments or when there are unsolicited
messages available.

Count up the number of USB_CDC_NOTIFY_RESPONSE_AVAILABLE notifications received
and decrement the count and submit the urb for the next response each time userspace
completes a read the response.

Signed-off-by: Greg Suarez <gsuarez@smithmicro.com>
Acked-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/class/cdc-wdm.c | 38 ++++++++++++++++++++++++++++++++++----
 1 file changed, 34 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index d3318a0df8ee..589ea58d5d66 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -101,6 +101,7 @@ struct wdm_device {
 	struct work_struct	rxwork;
 	int			werr;
 	int			rerr;
+	int                     resp_count;
 
 	struct list_head	device_list;
 	int			(*manage_power)(struct usb_interface *, int);
@@ -262,9 +263,9 @@ static void wdm_int_callback(struct urb *urb)
 	}
 
 	spin_lock(&desc->iuspin);
-	clear_bit(WDM_READ, &desc->flags);
 	responding = test_and_set_bit(WDM_RESPONDING, &desc->flags);
-	if (!responding && !test_bit(WDM_DISCONNECTING, &desc->flags)
+	if (!desc->resp_count++ && !responding
+		&& !test_bit(WDM_DISCONNECTING, &desc->flags)
 		&& !test_bit(WDM_SUSPENDING, &desc->flags)) {
 		rv = usb_submit_urb(desc->response, GFP_ATOMIC);
 		dev_dbg(&desc->intf->dev, "%s: usb_submit_urb %d",
@@ -521,10 +522,36 @@ retry:
 
 	desc->length -= cntr;
 	/* in case we had outstanding data */
-	if (!desc->length)
+	if (!desc->length) {
 		clear_bit(WDM_READ, &desc->flags);
 
-	spin_unlock_irq(&desc->iuspin);
+		if (--desc->resp_count) {
+			set_bit(WDM_RESPONDING, &desc->flags);
+			spin_unlock_irq(&desc->iuspin);
+
+			rv = usb_submit_urb(desc->response, GFP_KERNEL);
+			if (rv) {
+				dev_err(&desc->intf->dev,
+					"%s: usb_submit_urb failed with result %d\n",
+					__func__, rv);
+				spin_lock_irq(&desc->iuspin);
+				clear_bit(WDM_RESPONDING, &desc->flags);
+				spin_unlock_irq(&desc->iuspin);
+
+				if (rv == -ENOMEM) {
+					rv = schedule_work(&desc->rxwork);
+					if (rv)
+						dev_err(&desc->intf->dev, "Cannot schedule work\n");
+				} else {
+					spin_lock_irq(&desc->iuspin);
+					desc->resp_count = 0;
+					spin_unlock_irq(&desc->iuspin);
+				}
+			}
+		} else
+			spin_unlock_irq(&desc->iuspin);
+	} else
+		spin_unlock_irq(&desc->iuspin);
 
 	rv = cntr;
 
@@ -635,6 +662,9 @@ static int wdm_release(struct inode *inode, struct file *file)
 		if (!test_bit(WDM_DISCONNECTING, &desc->flags)) {
 			dev_dbg(&desc->intf->dev, "wdm_release: cleanup");
 			kill_urbs(desc);
+			spin_lock_irq(&desc->iuspin);
+			desc->resp_count = 0;
+			spin_unlock_irq(&desc->iuspin);
 			desc->manage_power(desc->intf, 0);
 		} else {
 			/* must avoid dev_printk here as desc->intf is invalid */
-- 
cgit 


From 9983d6dc4e8a8a1ce599cb426c0ec9384219b476 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Tue, 29 Oct 2013 09:52:57 +0100
Subject: usb: cdc-wdm: ignore speed change notifications
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The only notification supported by the Device Management class is
Response Available. But this driver is also used as a subdriver of
other CDC classes, allowing notifications like Speed Change and
Network Connection. This results in log messages which are only
confusing to an end user:

 [66255.801874] cdc_mbim 1-3:1.5: unknown notification 42 received: index 5 len 8

These drivers use cdc-wdm as a subdriver to allow access to an
embedded management protocol, and all management is expected to
use this protocol. There is therefore no need to handle any of
these optional CDC notifications. Instead we can let the cdc-wdm
driver recognize them and log a debug level message instead of an
error.

Reported-by: Rob Gardner <robmatic@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/class/cdc-wdm.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index 589ea58d5d66..4d387596f3f0 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -254,6 +254,10 @@ static void wdm_int_callback(struct urb *urb)
 			"NOTIFY_NETWORK_CONNECTION %s network",
 			dr->wValue ? "connected to" : "disconnected from");
 		goto exit;
+	case USB_CDC_NOTIFY_SPEED_CHANGE:
+		dev_dbg(&desc->intf->dev, "SPEED_CHANGE received (len %u)",
+			urb->actual_length);
+		goto exit;
 	default:
 		clear_bit(WDM_POLL_RUNNING, &desc->flags);
 		dev_err(&desc->intf->dev,
-- 
cgit 


From f0ac9bebf19001f38afbb93e2dc719a15dfb75e5 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Tue, 29 Oct 2013 19:42:22 -0200
Subject: imx-drm: ipuv3-crtc: Invert IPU DI0 clock polarity

sig_cfg.clk_pol controls the 'di0_polarity_disp_clk' bit of register
IPUx_DI0_GENERAL through the following code in imx-drm/ipu-v3/ipu-di.c:

	if (!sig->clk_pol)
		di_gen |= DI_GEN_POLARITY_DISP_CLK;

With 'di0_polarity_disp_clk' bit set we do not have stable HDMI output on
mx6solo: contours of pictures look jittery and the white colour does not appear
really white.

Russell King initially reported this problem at:
http://www.spinics.net/lists/arm-kernel/msg279805.html

Inverting 'di0_polarity_disp_clk' leads to stable HDMI output image.

Tested on the following boards:
- mx6solowandboard (HDMI output)
- mx6qwandboard (HDMI output)
- mx6qsabrelite (LVDS)
- mx6qsabresd (HDMI output and LVDS)
- mx6dlsabresd (HDMI output)
- mx53qsb (parallel WVGA display)

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Suggested-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/imx-drm/ipuv3-crtc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/imx-drm/ipuv3-crtc.c b/drivers/staging/imx-drm/ipuv3-crtc.c
index f1112dfa6bf6..670a56a834f1 100644
--- a/drivers/staging/imx-drm/ipuv3-crtc.c
+++ b/drivers/staging/imx-drm/ipuv3-crtc.c
@@ -157,7 +157,7 @@ static int ipu_crtc_mode_set(struct drm_crtc *crtc,
 		sig_cfg.Vsync_pol = 1;
 
 	sig_cfg.enable_pol = 1;
-	sig_cfg.clk_pol = 0;
+	sig_cfg.clk_pol = 1;
 	sig_cfg.width = mode->hdisplay;
 	sig_cfg.height = mode->vdisplay;
 	sig_cfg.pixel_fmt = out_pixel_fmt;
-- 
cgit 


From 2fef7e13c88698c165d42778abce3bb95f2238ea Mon Sep 17 00:00:00 2001
From: Lisa Nguyen <lisa@xenapiadmin.com>
Date: Tue, 29 Oct 2013 14:19:50 -0700
Subject: staging: bcm: Remove unnecessary pointer casting

Some void pointers can be assigned to other
pointer variables in functions without casting.

Signed-off-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/bcm/CmHost.c       | 10 +++++-----
 drivers/staging/bcm/IPv6Protocol.c |  2 +-
 drivers/staging/bcm/InterfaceDld.c |  4 ++--
 drivers/staging/bcm/InterfaceTx.c  |  2 +-
 4 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/bcm/CmHost.c b/drivers/staging/bcm/CmHost.c
index 8ec1dd175eba..cc91b5e934aa 100644
--- a/drivers/staging/bcm/CmHost.c
+++ b/drivers/staging/bcm/CmHost.c
@@ -837,7 +837,7 @@ static VOID DumpCmControlPacket(PVOID pvBuffer)
 	UINT nCurClassifierCnt;
 	struct bcm_mini_adapter *Adapter = GET_BCM_ADAPTER(gblpnetdev);
 
-	pstAddIndication = (struct bcm_add_indication_alt *)pvBuffer;
+	pstAddIndication = pvBuffer;
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "======>");
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8Type: 0x%X", pstAddIndication->u8Type);
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, DUMP_CONTROL, DBG_LVL_ALL, "u8Direction: 0x%X", pstAddIndication->u8Direction);
@@ -1339,14 +1339,14 @@ ULONG StoreCmControlResponseMessage(struct bcm_mini_adapter *Adapter, PVOID pvBu
 	UINT uiSearchRuleIndex;
 	ULONG ulSFID;
 
-	pstAddIndicationAlt = (struct bcm_add_indication_alt *)(pvBuffer);
+	pstAddIndicationAlt = pvBuffer;
 
 	/*
 	 * In case of DSD Req By MS, we should immediately delete this SF so that
 	 * we can stop the further classifying the pkt for this SF.
 	 */
 	if (pstAddIndicationAlt->u8Type == DSD_REQ) {
-		pstDeletionRequest = (struct bcm_del_request *)pvBuffer;
+		pstDeletionRequest = pvBuffer;
 
 		ulSFID = ntohl(pstDeletionRequest->u32SFID);
 		uiSearchRuleIndex = SearchSfid(Adapter, ulSFID);
@@ -1452,12 +1452,12 @@ static inline struct bcm_add_indication_alt
 	struct bcm_add_indication *pstAddIndication = NULL;
 	struct bcm_add_indication_alt *pstAddIndicationDest = NULL;
 
-	pstAddIndication = (struct bcm_add_indication *)(pvBuffer);
+	pstAddIndication = pvBuffer;
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CONN_MSG, DBG_LVL_ALL, "=====>");
 	if ((pstAddIndication->u8Type == DSD_REQ) ||
 		(pstAddIndication->u8Type == DSD_RSP) ||
 		(pstAddIndication->u8Type == DSD_ACK))
-		return (struct bcm_add_indication_alt *)pvBuffer;
+		return pvBuffer;
 
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CONN_MSG, DBG_LVL_ALL, "Inside RestoreCmControlResponseMessage ");
 	/*
diff --git a/drivers/staging/bcm/IPv6Protocol.c b/drivers/staging/bcm/IPv6Protocol.c
index f48c9c42fb13..cd160670e028 100644
--- a/drivers/staging/bcm/IPv6Protocol.c
+++ b/drivers/staging/bcm/IPv6Protocol.c
@@ -192,7 +192,7 @@ USHORT	IpVersion6(struct bcm_mini_adapter *Adapter, PVOID pcIpHeader,
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_TX, IPV6_DBG,
 			DBG_LVL_ALL, "IpVersion6 ==========>\n");
 
-	pstIpv6Header = (struct bcm_ipv6_hdr *)pcIpHeader;
+	pstIpv6Header = pcIpHeader;
 
 	DumpIpv6Header(pstIpv6Header);
 
diff --git a/drivers/staging/bcm/InterfaceDld.c b/drivers/staging/bcm/InterfaceDld.c
index d02b7d67c854..463bdee9dfca 100644
--- a/drivers/staging/bcm/InterfaceDld.c
+++ b/drivers/staging/bcm/InterfaceDld.c
@@ -6,7 +6,7 @@ int InterfaceFileDownload(PVOID arg, struct file *flp, unsigned int on_chip_loc)
 	mm_segment_t oldfs = {0};
 	int errno = 0, len = 0; /* ,is_config_file = 0 */
 	loff_t pos = 0;
-	struct bcm_interface_adapter *psIntfAdapter = (struct bcm_interface_adapter *)arg;
+	struct bcm_interface_adapter *psIntfAdapter = arg;
 	/* struct bcm_mini_adapter *Adapter = psIntfAdapter->psAdapter; */
 	char *buff = kmalloc(MAX_TRANSFER_CTRL_BYTE_USB, GFP_KERNEL);
 
@@ -61,7 +61,7 @@ int InterfaceFileReadbackFromChip(PVOID arg, struct file *flp, unsigned int on_c
 	loff_t pos = 0;
 	static int fw_down;
 	INT Status = STATUS_SUCCESS;
-	struct bcm_interface_adapter *psIntfAdapter = (struct bcm_interface_adapter *)arg;
+	struct bcm_interface_adapter *psIntfAdapter = arg;
 	int bytes;
 
 	buff = kmalloc(MAX_TRANSFER_CTRL_BYTE_USB, GFP_DMA);
diff --git a/drivers/staging/bcm/InterfaceTx.c b/drivers/staging/bcm/InterfaceTx.c
index 3457954d0982..b9c2784e9811 100644
--- a/drivers/staging/bcm/InterfaceTx.c
+++ b/drivers/staging/bcm/InterfaceTx.c
@@ -184,7 +184,7 @@ int InterfaceTransmitPacket(PVOID arg, PVOID data, UINT len)
 {
 	struct bcm_usb_tcb *pTcb= NULL;
 
-	struct bcm_interface_adapter *psIntfAdapter = (struct bcm_interface_adapter *)arg;
+	struct bcm_interface_adapter *psIntfAdapter = arg;
 	pTcb= GetBulkOutTcb(psIntfAdapter);
 	if(pTcb == NULL)
 	{
-- 
cgit 


From 43fc69b1122b8a3e540b9d6ab36dc9840fa918ff Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Tue, 29 Oct 2013 14:54:31 -0700
Subject: staging: ft1000: change values of status return variable in
 write_dpram32_and_check

The ft1000 usb driver ignores expected Linux error codes, and uses two
values defined in ft1000_usb.h: STATUS_SUCCESS 0, and STATUS_FAILURE
0x1001; and sometimes -1. This patch changes the return value of the
function write_dpram_32_and check to 0 or -EREMOTEIO, respectively. The
relevant change was made in the helper function check_buffers (which is
only called from write_dpram32_and_check); it now returns 0 on success
and -EREMOTEIO on failure, and this is allowed to propagate through
write_dpram32_and_check. Assignments to the return variable status that
are no longer needed were removed as well. In one function up the call
chain, dsp_reload in ft1000_hw.c, the status variable was changed from
u16 to int to avoid collecting a signed value in an unsigned variable.

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_download.c | 9 +++------
 drivers/staging/ft1000/ft1000-usb/ft1000_hw.c       | 2 +-
 2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index 605156852b44..72f3cfc95aa1 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -383,7 +383,7 @@ static int check_buffers(u16 *buff_w, u16 *buff_r, int len, int offset)
 
 	for (i = 0; i < len; i++) {
 		if (buff_w[i] != buff_r[i + offset])
-			return -1;
+			return -EREMOTEIO;
 	}
 
 	return 0;
@@ -399,7 +399,7 @@ static int write_dpram32_and_check(struct ft1000_usb *ft1000dev,
 	for (i = 0; i < 10; i++) {
 		status = ft1000_write_dpram32(ft1000dev, dpram,
 				(u8 *)&tempbuffer[0], 64);
-		if (status == STATUS_SUCCESS) {
+		if (status == 0) {
 			/* Work around for ASIC bit stuffing problem. */
 			if ((tempbuffer[31] & 0xfe00) == 0xfe00) {
 				status = ft1000_write_dpram32(ft1000dev,
@@ -414,7 +414,6 @@ static int write_dpram32_and_check(struct ft1000_usb *ft1000dev,
 							0)) {
 					DEBUG("FT1000:download:DPRAM write failed 1 during bootloading\n");
 					usleep_range(9000, 11000);
-					status = STATUS_FAILURE;
 					break;
 				}
 				status = ft1000_read_dpram32(ft1000dev,
@@ -425,7 +424,6 @@ static int write_dpram32_and_check(struct ft1000_usb *ft1000dev,
 							24)) {
 					DEBUG("FT1000:download:DPRAM write failed 2 during bootloading\n");
 					usleep_range(9000, 11000);
-					status = STATUS_FAILURE;
 					break;
 				}
 			} else {
@@ -433,11 +431,10 @@ static int write_dpram32_and_check(struct ft1000_usb *ft1000dev,
 							0)) {
 					DEBUG("FT1000:download:DPRAM write failed 3 during bootloading\n");
 					usleep_range(9000, 11000);
-					status = STATUS_FAILURE;
 					break;
 				}
 			}
-			if (status == STATUS_SUCCESS)
+			if (status == 0)
 				break;
 		}
 	}
diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c b/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
index ca5b56c290fa..0d4931b2c2e2 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_hw.c
@@ -521,7 +521,7 @@ void card_send_command(struct ft1000_usb *ft1000dev, void *ptempbuffer,
 //-----------------------------------------------------------------------
 int dsp_reload(struct ft1000_usb *ft1000dev)
 {
-	u16 status;
+	int status;
 	u16 tempword;
 	u32 templong;
 
-- 
cgit 


From b1bdd4d3ed3b501063d81618be547be0cfe61b0f Mon Sep 17 00:00:00 2001
From: Kelley Nielsen <kelleynnn@gmail.com>
Date: Tue, 29 Oct 2013 16:06:36 -0700
Subject: staging: ft1000: return values corrected in scram_start_dwnld

The ft1000 usb driver ignores expected Linux error codes, and uses two
values defined in ft1000_usb.h: STATUS_SUCCESS 0, and STATUS_FAILURE
0x1001; and sometimes -1. This patch changes the return values of the
function scram_start_dwnld to match the status of the handshake returned
by its helper functions, get_handshake and get_handshake_usb. If the
handshake fails, -ENETRESET is returned instead of the inappropriate
STATUS_FAILURE. Also, a new test has been added to differentiate failure
due to timeout from failure due to net reset (the default). -ETIMEDOUT
is returned in this case. Finally, 0 is returned on success instead of
STATUS_SUCCESS.

Signed-off-by: Kelley Nielsen <kelleynnn@gmail.com>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_download.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index 72f3cfc95aa1..68ded17c0f5c 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -554,7 +554,7 @@ static int write_blk_fifo(struct ft1000_usb *ft1000dev, u16 **pUsFile,
 static int scram_start_dwnld(struct ft1000_usb *ft1000dev, u16 *hshake,
 		u32 *state)
 {
-	int status = STATUS_SUCCESS;
+	int status = 0;
 
 	DEBUG("FT1000:STATE_START_DWNLD\n");
 	if (ft1000dev->usbboot)
@@ -564,9 +564,11 @@ static int scram_start_dwnld(struct ft1000_usb *ft1000dev, u16 *hshake,
 	if (*hshake == HANDSHAKE_DSP_BL_READY) {
 		DEBUG("scram_dnldr: handshake is HANDSHAKE_DSP_BL_READY, call put_handshake(HANDSHAKE_DRIVER_READY)\n");
 		put_handshake(ft1000dev, HANDSHAKE_DRIVER_READY);
+	} else if (*hshake == HANDSHAKE_TIMEOUT_VALUE) {
+		status = -ETIMEDOUT;
 	} else {
 		DEBUG("FT1000:download:Download error: Handshake failed\n");
-		status = STATUS_FAILURE;
+		status = -ENETRESET;
 	}
 	*state = STATE_BOOT_DWNLD;
 	return status;
-- 
cgit 


From 6587fca23001c33813d56309faf41188b5fbdb70 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 21:26:40 +0530
Subject: cpuidle: fix indentation of cpumask

Use tabs for cpumask indentation in struct cpuidle_driver.

[rjw: Changelog]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/linux/cpuidle.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 781addc66f03..c082425757f4 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -114,7 +114,7 @@ struct cpuidle_driver {
 	int			safe_state_index;
 
 	/* the driver handles the cpus in cpumask */
-	struct cpumask       *cpumask;
+	struct cpumask		*cpumask;
 };
 
 #ifdef CONFIG_CPU_IDLE
-- 
cgit 


From caf4a36e818ba8df4e002b7dfa4eff5b8384dda0 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 21:26:41 +0530
Subject: cpuidle: Fix comments in cpuidle core

Some comments in cpuidle core files contain trivial mistakes.
This patch fixes them.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpuidle/coupled.c | 2 +-
 drivers/cpuidle/cpuidle.c | 2 +-
 drivers/cpuidle/driver.c  | 6 +++---
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/cpuidle/coupled.c b/drivers/cpuidle/coupled.c
index f8a86364c6b6..e952936418d0 100644
--- a/drivers/cpuidle/coupled.c
+++ b/drivers/cpuidle/coupled.c
@@ -147,7 +147,7 @@ static cpumask_t cpuidle_coupled_poked;
  * has returned from this function, the barrier is immediately available for
  * reuse.
  *
- * The atomic variable a must be initialized to 0 before any cpu calls
+ * The atomic variable must be initialized to 0 before any cpu calls
  * this function, will be reset to 0 before any cpu returns from this function.
  *
  * Must only be called from within a coupled idle state handler
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index d75040ddd2b3..8827c02af87c 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -516,7 +516,7 @@ int cpuidle_register(struct cpuidle_driver *drv,
 
 #ifdef CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED
 		/*
-		 * On multiplatform for ARM, the coupled idle states could
+		 * On multiplatform for ARM, the coupled idle states could be
 		 * enabled in the kernel even if the cpuidle driver does not
 		 * use it. Note, coupled_cpus is a struct copy.
 		 */
diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c
index 6e11701f0fca..ced1df6844eb 100644
--- a/drivers/cpuidle/driver.c
+++ b/drivers/cpuidle/driver.c
@@ -56,7 +56,7 @@ static inline void __cpuidle_unset_driver(struct cpuidle_driver *drv)
 }
 
 /**
- * __cpuidle_set_driver - set per CPU driver variables the the given driver.
+ * __cpuidle_set_driver - set per CPU driver variables for the given driver.
  * @drv: a valid pointer to a struct cpuidle_driver
  *
  * For each CPU in the driver's cpumask, unset the registered driver per CPU
@@ -132,7 +132,7 @@ static inline void __cpuidle_unset_driver(struct cpuidle_driver *drv)
  * cpuidle_setup_broadcast_timer - enable/disable the broadcast timer
  * @arg: a void pointer used to match the SMP cross call API
  *
- * @arg is used as a value of type 'long' with on of the two values:
+ * @arg is used as a value of type 'long' with one of the two values:
  * - CLOCK_EVT_NOTIFY_BROADCAST_ON
  * - CLOCK_EVT_NOTIFY_BROADCAST_OFF
  *
@@ -169,7 +169,7 @@ static int __cpuidle_driver_init(struct cpuidle_driver *drv)
 	/*
 	 * Look for the timer stop flag in the different states, so that we know
 	 * if the broadcast timer has to be set up.  The loop is in the reverse
-	 * order, because usually on of the the deeper states has this flag set.
+	 * order, because usually one of the deeper states have this flag set.
 	 */
 	for (i = drv->state_count - 1; i >= 0 ; i--) {
 
-- 
cgit 


From 267d4bf8ee6dbde889f4c55d0188f561616dbc7a Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 21:26:43 +0530
Subject: cpuidle: make __cpuidle_device_init() return void

The only value returned by __cpuidle_device_init() is 0, so it very
well may be a void function.  Make that happen.

[rjw: Changelog]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpuidle/cpuidle.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 8827c02af87c..211e504263fa 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -358,12 +358,10 @@ static void __cpuidle_unregister_device(struct cpuidle_device *dev)
 	module_put(drv->owner);
 }
 
-static int __cpuidle_device_init(struct cpuidle_device *dev)
+static void __cpuidle_device_init(struct cpuidle_device *dev)
 {
 	memset(dev->states_usage, 0, sizeof(dev->states_usage));
 	dev->last_residency = 0;
-
-	return 0;
 }
 
 /**
@@ -410,9 +408,7 @@ int cpuidle_register_device(struct cpuidle_device *dev)
 	if (dev->registered)
 		goto out_unlock;
 
-	ret = __cpuidle_device_init(dev);
-	if (ret)
-		goto out_unlock;
+	__cpuidle_device_init(dev);
 
 	ret = __cpuidle_register_device(dev);
 	if (ret)
-- 
cgit 


From e437f3e37369606bf1a340e0504554d6530abc51 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 21:26:44 +0530
Subject: cpuidle: make __cpuidle_driver_init() return void

The only value returned by __cpuidle_driver_init() is 0, so it
very well may be a void function.

[rjw: Changelog]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpuidle/driver.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c
index ced1df6844eb..d97d072a461c 100644
--- a/drivers/cpuidle/driver.c
+++ b/drivers/cpuidle/driver.c
@@ -149,10 +149,8 @@ static void cpuidle_setup_broadcast_timer(void *arg)
 /**
  * __cpuidle_driver_init - initialize the driver's internal data
  * @drv: a valid pointer to a struct cpuidle_driver
- *
- * Returns 0 on success, a negative error code otherwise.
  */
-static int __cpuidle_driver_init(struct cpuidle_driver *drv)
+static void __cpuidle_driver_init(struct cpuidle_driver *drv)
 {
 	int i;
 
@@ -179,8 +177,6 @@ static int __cpuidle_driver_init(struct cpuidle_driver *drv)
 		drv->bctimer = 1;
 		break;
 	}
-
-	return 0;
 }
 
 /**
@@ -206,9 +202,7 @@ static int __cpuidle_register_driver(struct cpuidle_driver *drv)
 	if (cpuidle_disabled())
 		return -ENODEV;
 
-	ret = __cpuidle_driver_init(drv);
-	if (ret)
-		return ret;
+	__cpuidle_driver_init(drv);
 
 	ret = __cpuidle_set_driver(drv);
 	if (ret)
-- 
cgit 


From b171a85648e7055c6680c259a9a87806a56a24c3 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 21:26:45 +0530
Subject: cpuidle: rearrange code in __cpuidle_driver_init()

This is trivial patch that just reorders a few statements in
__cpuidle_driver_init() routine so that we don't need both 'continue'
and 'break' in the for loop. Functionally it shouldn't change anything.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpuidle/driver.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c
index d97d072a461c..a930005d5a3a 100644
--- a/drivers/cpuidle/driver.c
+++ b/drivers/cpuidle/driver.c
@@ -170,12 +170,10 @@ static void __cpuidle_driver_init(struct cpuidle_driver *drv)
 	 * order, because usually one of the deeper states have this flag set.
 	 */
 	for (i = drv->state_count - 1; i >= 0 ; i--) {
-
-		if (!(drv->states[i].flags & CPUIDLE_FLAG_TIMER_STOP))
-			continue;
-
-		drv->bctimer = 1;
-		break;
+		if (drv->states[i].flags & CPUIDLE_FLAG_TIMER_STOP) {
+			drv->bctimer = 1;
+			break;
+		}
 	}
 }
 
-- 
cgit 


From 47182668ca140ae067d5961ec8c59edf646b36c7 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 21:26:46 +0530
Subject: cpuidle: rearrange __cpuidle_register_device() to keep minimal exit
 points

This patch rearranges __cpuidle_register_device() a bit in order to
reduce the number of exit points in that function.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpuidle/cpuidle.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 211e504263fa..8c91badff00b 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -383,13 +383,12 @@ static int __cpuidle_register_device(struct cpuidle_device *dev)
 	list_add(&dev->device_list, &cpuidle_detected_devices);
 
 	ret = cpuidle_coupled_register_device(dev);
-	if (ret) {
+	if (ret)
 		__cpuidle_unregister_device(dev);
-		return ret;
-	}
+	else
+		dev->registered = 1;
 
-	dev->registered = 1;
-	return 0;
+	return ret;
 }
 
 /**
-- 
cgit 


From 9b29a86f04f87cdb9eaacadf2e2d33a55af1c7cc Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 21:26:47 +0530
Subject: cpuidle: merge two if() statements for checking error cases

Two checks cpuidle_idle_call() cause the same error code to be
returned if they fail, so merge them for clarity.

[rjw: Changelog]
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpuidle/cpuidle.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 8c91badff00b..518b542cad54 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -119,10 +119,7 @@ int cpuidle_idle_call(void)
 	struct cpuidle_driver *drv;
 	int next_state, entered_state;
 
-	if (off)
-		return -ENODEV;
-
-	if (!initialized)
+	if (off || !initialized)
 		return -ENODEV;
 
 	/* check if the device is ready */
-- 
cgit 


From fb11c9c63f995afbe0e909f061d9866a722cb4bf Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 21:26:48 +0530
Subject: cpuidle: reduce code duplication inside cpuidle_idle_call()

We are doing this twice in cpuidle_idle_call() routine:
	drv->states[next_state].flags & CPUIDLE_FLAG_TIMER_STOP

Would be better if we actually store this in a local variable and
use that. That reduces code duplication and likely makes this piece
of code run faster (in case the compiler wasn't able to optimize it
earlier)

[rjw: Cast the result of bitwise AND to bool explicitly using !!]
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpuidle/cpuidle.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 518b542cad54..86e805986d6f 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -118,6 +118,7 @@ int cpuidle_idle_call(void)
 	struct cpuidle_device *dev = __this_cpu_read(cpuidle_devices);
 	struct cpuidle_driver *drv;
 	int next_state, entered_state;
+	bool broadcast;
 
 	if (off || !initialized)
 		return -ENODEV;
@@ -141,7 +142,9 @@ int cpuidle_idle_call(void)
 
 	trace_cpu_idle_rcuidle(next_state, dev->cpu);
 
-	if (drv->states[next_state].flags & CPUIDLE_FLAG_TIMER_STOP)
+	broadcast = !!(drv->states[next_state].flags & CPUIDLE_FLAG_TIMER_STOP);
+
+	if (broadcast)
 		clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER,
 				   &dev->cpu);
 
@@ -151,7 +154,7 @@ int cpuidle_idle_call(void)
 	else
 		entered_state = cpuidle_enter_state(dev, drv, next_state);
 
-	if (drv->states[next_state].flags & CPUIDLE_FLAG_TIMER_STOP)
+	if (broadcast)
 		clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT,
 				   &dev->cpu);
 
-- 
cgit 


From 6d281e97a1c53abb73477a34806c1a000409c4b9 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 21:26:49 +0530
Subject: cpuidle: replace multiline statements with single line in
 cpuidle_idle_call()

Few statements in cpuidle_idle_call() are broken into multiple lines,
although that isn't really necessary. Convert those to single line.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpuidle/cpuidle.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 86e805986d6f..039a807b217a 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -145,8 +145,7 @@ int cpuidle_idle_call(void)
 	broadcast = !!(drv->states[next_state].flags & CPUIDLE_FLAG_TIMER_STOP);
 
 	if (broadcast)
-		clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER,
-				   &dev->cpu);
+		clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu);
 
 	if (cpuidle_state_is_coupled(dev, drv, next_state))
 		entered_state = cpuidle_enter_state_coupled(dev, drv,
@@ -155,8 +154,7 @@ int cpuidle_idle_call(void)
 		entered_state = cpuidle_enter_state(dev, drv, next_state);
 
 	if (broadcast)
-		clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT,
-				   &dev->cpu);
+		clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &dev->cpu);
 
 	trace_cpu_idle_rcuidle(PWR_EVENT_EXIT, dev->cpu);
 
-- 
cgit 


From 0d09d3125642ac1f02937e577819dbc515291d93 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 21:26:50 +0530
Subject: cpuidle: call cpuidle_get_driver() from after taking
 cpuidle_driver_lock

There are a few cpuidle_get_driver() calls that aren't made under
cpuidle_driver_lock which is incorrect.

Fix them by calling cpuidle_get_driver() after taking cpuidle_driver_lock.

Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpuidle/driver.c | 3 ++-
 drivers/cpuidle/sysfs.c  | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c
index a930005d5a3a..2458a741ad45 100644
--- a/drivers/cpuidle/driver.c
+++ b/drivers/cpuidle/driver.c
@@ -338,10 +338,11 @@ struct cpuidle_driver *cpuidle_driver_ref(void)
  */
 void cpuidle_driver_unref(void)
 {
-	struct cpuidle_driver *drv = cpuidle_get_driver();
+	struct cpuidle_driver *drv;
 
 	spin_lock(&cpuidle_driver_lock);
 
+	drv = cpuidle_get_driver();
 	if (drv && !WARN_ON(drv->refcnt <= 0))
 		drv->refcnt--;
 
diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
index 8739cc05228c..a0223933536e 100644
--- a/drivers/cpuidle/sysfs.c
+++ b/drivers/cpuidle/sysfs.c
@@ -52,9 +52,10 @@ static ssize_t show_current_driver(struct device *dev,
 				   char *buf)
 {
 	ssize_t ret;
-	struct cpuidle_driver *cpuidle_driver = cpuidle_get_driver();
+	struct cpuidle_driver *cpuidle_driver;
 
 	spin_lock(&cpuidle_driver_lock);
+	cpuidle_driver = cpuidle_get_driver();
 	if (cpuidle_driver)
 		ret = sprintf(buf, "%s\n", cpuidle_driver->name);
 	else
-- 
cgit 


From 1f6b9f74ee3d96909e5e70d4207b4b6740d4db62 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 21:26:51 +0530
Subject: cpuidle: use drv instead of cpuidle_driver in show_current_driver()

Instances of "struct cpuidle_driver *" are consistently named as "drv"
in the cpuidle core except in show_current_driver().

Make that function use variable naming consistent with the rest of the
code.

[rjw: Changelog]
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpuidle/sysfs.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
index a0223933536e..e918b6d0caf7 100644
--- a/drivers/cpuidle/sysfs.c
+++ b/drivers/cpuidle/sysfs.c
@@ -52,12 +52,12 @@ static ssize_t show_current_driver(struct device *dev,
 				   char *buf)
 {
 	ssize_t ret;
-	struct cpuidle_driver *cpuidle_driver;
+	struct cpuidle_driver *drv;
 
 	spin_lock(&cpuidle_driver_lock);
-	cpuidle_driver = cpuidle_get_driver();
-	if (cpuidle_driver)
-		ret = sprintf(buf, "%s\n", cpuidle_driver->name);
+	drv = cpuidle_get_driver();
+	if (drv)
+		ret = sprintf(buf, "%s\n", drv->name);
 	else
 		ret = sprintf(buf, "none\n");
 	spin_unlock(&cpuidle_driver_lock);
-- 
cgit 


From d7c7f103262bc2248548ed0e113e916e843c4eeb Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 21:26:54 +0530
Subject: cpuidle: don't call poll_idle_init() for every cpu

poll_idle_init() just initializes drv->states[0] and so that is
required to be done only once for each driver.  Currently, it is
called from cpuidle_enable_device() which is called for every CPU
that the driver supports.  That is not required, so move it to a
better place and call it from __cpuidle_register_driver() so that
the initialization is carried out only once.

Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpuidle/cpuidle.c | 41 -----------------------------------------
 drivers/cpuidle/driver.c  | 42 ++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 42 insertions(+), 41 deletions(-)

diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 039a807b217a..2a991e468f78 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -226,45 +226,6 @@ void cpuidle_resume(void)
 	mutex_unlock(&cpuidle_lock);
 }
 
-#ifdef CONFIG_ARCH_HAS_CPU_RELAX
-static int poll_idle(struct cpuidle_device *dev,
-		struct cpuidle_driver *drv, int index)
-{
-	ktime_t	t1, t2;
-	s64 diff;
-
-	t1 = ktime_get();
-	local_irq_enable();
-	while (!need_resched())
-		cpu_relax();
-
-	t2 = ktime_get();
-	diff = ktime_to_us(ktime_sub(t2, t1));
-	if (diff > INT_MAX)
-		diff = INT_MAX;
-
-	dev->last_residency = (int) diff;
-
-	return index;
-}
-
-static void poll_idle_init(struct cpuidle_driver *drv)
-{
-	struct cpuidle_state *state = &drv->states[0];
-
-	snprintf(state->name, CPUIDLE_NAME_LEN, "POLL");
-	snprintf(state->desc, CPUIDLE_DESC_LEN, "CPUIDLE CORE POLL IDLE");
-	state->exit_latency = 0;
-	state->target_residency = 0;
-	state->power_usage = -1;
-	state->flags = 0;
-	state->enter = poll_idle;
-	state->disabled = false;
-}
-#else
-static void poll_idle_init(struct cpuidle_driver *drv) {}
-#endif /* CONFIG_ARCH_HAS_CPU_RELAX */
-
 /**
  * cpuidle_enable_device - enables idle PM for a CPU
  * @dev: the CPU
@@ -294,8 +255,6 @@ int cpuidle_enable_device(struct cpuidle_device *dev)
 	if (!dev->state_count)
 		dev->state_count = drv->state_count;
 
-	poll_idle_init(drv);
-
 	ret = cpuidle_add_device_sysfs(dev);
 	if (ret)
 		return ret;
diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c
index 2458a741ad45..06dbe7c86199 100644
--- a/drivers/cpuidle/driver.c
+++ b/drivers/cpuidle/driver.c
@@ -10,6 +10,7 @@
 
 #include <linux/mutex.h>
 #include <linux/module.h>
+#include <linux/sched.h>
 #include <linux/cpuidle.h>
 #include <linux/cpumask.h>
 #include <linux/clockchips.h>
@@ -177,6 +178,45 @@ static void __cpuidle_driver_init(struct cpuidle_driver *drv)
 	}
 }
 
+#ifdef CONFIG_ARCH_HAS_CPU_RELAX
+static int poll_idle(struct cpuidle_device *dev,
+		struct cpuidle_driver *drv, int index)
+{
+	ktime_t	t1, t2;
+	s64 diff;
+
+	t1 = ktime_get();
+	local_irq_enable();
+	while (!need_resched())
+		cpu_relax();
+
+	t2 = ktime_get();
+	diff = ktime_to_us(ktime_sub(t2, t1));
+	if (diff > INT_MAX)
+		diff = INT_MAX;
+
+	dev->last_residency = (int) diff;
+
+	return index;
+}
+
+static void poll_idle_init(struct cpuidle_driver *drv)
+{
+	struct cpuidle_state *state = &drv->states[0];
+
+	snprintf(state->name, CPUIDLE_NAME_LEN, "POLL");
+	snprintf(state->desc, CPUIDLE_DESC_LEN, "CPUIDLE CORE POLL IDLE");
+	state->exit_latency = 0;
+	state->target_residency = 0;
+	state->power_usage = -1;
+	state->flags = 0;
+	state->enter = poll_idle;
+	state->disabled = false;
+}
+#else
+static void poll_idle_init(struct cpuidle_driver *drv) {}
+#endif /* !CONFIG_ARCH_HAS_CPU_RELAX */
+
 /**
  * __cpuidle_register_driver: register the driver
  * @drv: a valid pointer to a struct cpuidle_driver
@@ -210,6 +250,8 @@ static int __cpuidle_register_driver(struct cpuidle_driver *drv)
 		on_each_cpu_mask(drv->cpumask, cpuidle_setup_broadcast_timer,
 				 (void *)CLOCK_EVT_NOTIFY_BROADCAST_ON, 1);
 
+	poll_idle_init(drv);
+
 	return 0;
 }
 
-- 
cgit 


From f60e230f6be5672241e48434a6c2a417d9674d42 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Thu, 3 Oct 2013 21:26:55 +0530
Subject: cpuidle: remove cpuidle_unregister_governor()

cpuidle_unregister_governor() and cpuidle_replace_governor() aren't
used anymore and can be removed. They were used by cpufreq governors
earlier, but since the governors can't be compiled as modules any
more, these two functions aren't necessary.

Suggested-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 Documentation/cpuidle/governor.txt |  1 -
 drivers/cpuidle/governor.c         | 43 --------------------------------------
 include/linux/cpuidle.h            |  6 ------
 3 files changed, 50 deletions(-)

diff --git a/Documentation/cpuidle/governor.txt b/Documentation/cpuidle/governor.txt
index 12c6bd50c9f6..d9020f5e847b 100644
--- a/Documentation/cpuidle/governor.txt
+++ b/Documentation/cpuidle/governor.txt
@@ -25,5 +25,4 @@ kernel configuration and platform will be selected by cpuidle.
 
 Interfaces:
 extern int cpuidle_register_governor(struct cpuidle_governor *gov);
-extern void cpuidle_unregister_governor(struct cpuidle_governor *gov);
 struct cpuidle_governor
diff --git a/drivers/cpuidle/governor.c b/drivers/cpuidle/governor.c
index ea2f8e7aa24a..ca89412f5122 100644
--- a/drivers/cpuidle/governor.c
+++ b/drivers/cpuidle/governor.c
@@ -96,46 +96,3 @@ int cpuidle_register_governor(struct cpuidle_governor *gov)
 
 	return ret;
 }
-
-/**
- * cpuidle_replace_governor - find a replacement governor
- * @exclude_rating: the rating that will be skipped while looking for
- * new governor.
- */
-static struct cpuidle_governor *cpuidle_replace_governor(int exclude_rating)
-{
-	struct cpuidle_governor *gov;
-	struct cpuidle_governor *ret_gov = NULL;
-	unsigned int max_rating = 0;
-
-	list_for_each_entry(gov, &cpuidle_governors, governor_list) {
-		if (gov->rating == exclude_rating)
-			continue;
-		if (gov->rating > max_rating) {
-			max_rating = gov->rating;
-			ret_gov = gov;
-		}
-	}
-
-	return ret_gov;
-}
-
-/**
- * cpuidle_unregister_governor - unregisters a governor
- * @gov: the governor
- */
-void cpuidle_unregister_governor(struct cpuidle_governor *gov)
-{
-	if (!gov)
-		return;
-
-	mutex_lock(&cpuidle_lock);
-	if (gov == cpuidle_curr_governor) {
-		struct cpuidle_governor *new_gov;
-		new_gov = cpuidle_replace_governor(gov->rating);
-		cpuidle_switch_governor(new_gov);
-	}
-	list_del(&gov->governor_list);
-	mutex_unlock(&cpuidle_lock);
-}
-
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index c082425757f4..50fcbb0ac4e7 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -195,16 +195,10 @@ struct cpuidle_governor {
 };
 
 #ifdef CONFIG_CPU_IDLE
-
 extern int cpuidle_register_governor(struct cpuidle_governor *gov);
-extern void cpuidle_unregister_governor(struct cpuidle_governor *gov);
-
 #else
-
 static inline int cpuidle_register_governor(struct cpuidle_governor *gov)
 {return 0;}
-static inline void cpuidle_unregister_governor(struct cpuidle_governor *gov) { }
-
 #endif
 
 #ifdef CONFIG_ARCH_HAS_CPU_RELAX
-- 
cgit 


From e2401453111dd84da377e4e84740ab643885f95a Mon Sep 17 00:00:00 2001
From: Prarit Bhargava <prarit@redhat.com>
Date: Wed, 23 Oct 2013 09:44:51 -0400
Subject: intel_idle: use CPU_TASKS_FROZEN instead of a numeric constant

Small fixup to use CPU_TASKS_FROZEN instead of 0xf.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/idle/intel_idle.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 33e599ebbe96..3f95a533c1a8 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -390,7 +390,7 @@ static int cpu_hotplug_notify(struct notifier_block *n,
 	int hotcpu = (unsigned long)hcpu;
 	struct cpuidle_device *dev;
 
-	switch (action & 0xf) {
+	switch (action & ~CPU_TASKS_FROZEN) {
 	case CPU_ONLINE:
 
 		if (lapic_timer_reliable_states != LAPIC_TIMER_ALWAYS_RELIABLE)
-- 
cgit 


From 97203abe6bc41ee020f37c902bd1a761157f22c1 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 28 Oct 2013 10:56:20 +0100
Subject: net: ipvs: sctp: do not recalc sctp csum when ports didn't change

Unlike UDP or TCP, we do not take the pseudo-header into
account in SCTP checksums. So in case port mapping is the
very same, we do not need to recalculate the whole SCTP
checksum in software, which is very expensive.

Also, similarly as in TCP, take into account when a private
helper mangled the packet. In that case, we also need to
recalculate the checksum even if ports might be same.

Thanks for feedback regarding skb->ip_summed checks from
Julian Anastasov; here's a discussion on these checks for
snat and dnat:

* For snat_handler(), we can see CHECKSUM_PARTIAL from
  virtual devices, and from LOCAL_OUT, otherwise it
  should be CHECKSUM_UNNECESSARY. In general, in snat it
  is more complex. skb contains the original route and
  ip_vs_route_me_harder() can change the route after
  snat_handler. So, for locally generated replies from
  local server we can not preserve the CHECKSUM_PARTIAL
  mode. It is an chicken or egg dilemma: snat_handler
  needs the device after rerouting (to check for
  NETIF_F_SCTP_CSUM), while ip_route_me_harder() wants
  the snat_handler() to put the new saddr for proper
  rerouting.

* For dnat_handler(), we should not see CHECKSUM_COMPLETE
  for SCTP, in fact the small set of drivers that support
  SCTP offloading return CHECKSUM_UNNECESSARY on correctly
  received SCTP csum. We can see CHECKSUM_PARTIAL from
  local stack or received from virtual drivers. The idea is
  that SCTP decides to avoid csum calculation if hardware
  supports offloading. IPVS can change the device after
  rerouting to real server but we can preserve the
  CHECKSUM_PARTIAL mode if the new device supports
  offloading too. This works because skb dst is changed
  before dnat_handler and we see the new device. So, checks
  in the 'if' part will decide whether it is ok to keep
  CHECKSUM_PARTIAL for the output. If the packet was with
  CHECKSUM_NONE, hence we deal with unknown checksum. As we
  recalculate the sum for IP header in all cases, it should
  be safe to use CHECKSUM_UNNECESSARY. We can forward wrong
  checksum in this case (without cp->app). In case of
  CHECKSUM_UNNECESSARY, the csum was valid on receive.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
---
 net/netfilter/ipvs/ip_vs_proto_sctp.c | 39 +++++++++++++++++++++++++++++------
 1 file changed, 33 insertions(+), 6 deletions(-)

diff --git a/net/netfilter/ipvs/ip_vs_proto_sctp.c b/net/netfilter/ipvs/ip_vs_proto_sctp.c
index 9ca7aa033284..2f7ea7564044 100644
--- a/net/netfilter/ipvs/ip_vs_proto_sctp.c
+++ b/net/netfilter/ipvs/ip_vs_proto_sctp.c
@@ -81,6 +81,7 @@ sctp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
 {
 	sctp_sctphdr_t *sctph;
 	unsigned int sctphoff = iph->len;
+	bool payload_csum = false;
 
 #ifdef CONFIG_IP_VS_IPV6
 	if (cp->af == AF_INET6 && iph->fragoffs)
@@ -92,19 +93,31 @@ sctp_snat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
 		return 0;
 
 	if (unlikely(cp->app != NULL)) {
+		int ret;
+
 		/* Some checks before mangling */
 		if (pp->csum_check && !pp->csum_check(cp->af, skb, pp))
 			return 0;
 
 		/* Call application helper if needed */
-		if (!ip_vs_app_pkt_out(cp, skb))
+		ret = ip_vs_app_pkt_out(cp, skb);
+		if (ret == 0)
 			return 0;
+		/* ret=2: csum update is needed after payload mangling */
+		if (ret == 2)
+			payload_csum = true;
 	}
 
 	sctph = (void *) skb_network_header(skb) + sctphoff;
-	sctph->source = cp->vport;
 
-	sctp_nat_csum(skb, sctph, sctphoff);
+	/* Only update csum if we really have to */
+	if (sctph->source != cp->vport || payload_csum ||
+	    skb->ip_summed == CHECKSUM_PARTIAL) {
+		sctph->source = cp->vport;
+		sctp_nat_csum(skb, sctph, sctphoff);
+	} else {
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
+	}
 
 	return 1;
 }
@@ -115,6 +128,7 @@ sctp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
 {
 	sctp_sctphdr_t *sctph;
 	unsigned int sctphoff = iph->len;
+	bool payload_csum = false;
 
 #ifdef CONFIG_IP_VS_IPV6
 	if (cp->af == AF_INET6 && iph->fragoffs)
@@ -126,19 +140,32 @@ sctp_dnat_handler(struct sk_buff *skb, struct ip_vs_protocol *pp,
 		return 0;
 
 	if (unlikely(cp->app != NULL)) {
+		int ret;
+
 		/* Some checks before mangling */
 		if (pp->csum_check && !pp->csum_check(cp->af, skb, pp))
 			return 0;
 
 		/* Call application helper if needed */
-		if (!ip_vs_app_pkt_in(cp, skb))
+		ret = ip_vs_app_pkt_in(cp, skb);
+		if (ret == 0)
 			return 0;
+		/* ret=2: csum update is needed after payload mangling */
+		if (ret == 2)
+			payload_csum = true;
 	}
 
 	sctph = (void *) skb_network_header(skb) + sctphoff;
-	sctph->dest = cp->dport;
 
-	sctp_nat_csum(skb, sctph, sctphoff);
+	/* Only update csum if we really have to */
+	if (sctph->dest != cp->dport || payload_csum ||
+	    (skb->ip_summed == CHECKSUM_PARTIAL &&
+	     !(skb_dst(skb)->dev->features & NETIF_F_SCTP_CSUM))) {
+		sctph->dest = cp->dport;
+		sctp_nat_csum(skb, sctph, sctphoff);
+	} else if (skb->ip_summed != CHECKSUM_PARTIAL) {
+		skb->ip_summed = CHECKSUM_UNNECESSARY;
+	}
 
 	return 1;
 }
-- 
cgit 


From b69ac52449c658b7ac40034dc3c5f5f4a71a723d Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Sun, 20 Oct 2013 15:14:59 -0700
Subject: gpiolib: make GPIO_DEVRES depend on GPIOLIB

Current Kconfig allows GPIO_DEVRES to be selected and compiled without
GPIOLIB. This does not make sense anymore since GPIOLIB has become the
exclusive way to deal with GPIOs. This patch makes GPIO_DEVRES available
only if GPIOLIB is selected.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/Kconfig | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 92e258c58638..62eb9ef47e78 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -30,10 +30,6 @@ config ARCH_REQUIRE_GPIOLIB
 	  Selecting this from the architecture code will cause the gpiolib
 	  code to always get built in.
 
-config GPIO_DEVRES
-	def_bool y
-	depends on HAS_IOMEM
-
 
 menuconfig GPIOLIB
 	bool "GPIO Support"
@@ -47,6 +43,10 @@ menuconfig GPIOLIB
 
 if GPIOLIB
 
+config GPIO_DEVRES
+	def_bool y
+	depends on HAS_IOMEM
+
 config OF_GPIO
 	def_bool y
 	depends on OF
-- 
cgit 


From 3c2c628f82a2c48c0d684dbf63b6a4765e784444 Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Sun, 20 Oct 2013 15:14:58 -0700
Subject: gpiolib: devres: add missing headers

Add missing headers for drivers/gpiolib/devres.c.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/devres.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpio/devres.c b/drivers/gpio/devres.c
index fceebdc9e152..307464fd015f 100644
--- a/drivers/gpio/devres.c
+++ b/drivers/gpio/devres.c
@@ -15,7 +15,9 @@
  */
 
 #include <linux/module.h>
+#include <linux/err.h>
 #include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
 #include <linux/device.h>
 #include <linux/gfp.h>
 
-- 
cgit 


From 403c1d0be5ccbd750d25c59d8358843a81e52e3b Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Fri, 25 Oct 2013 12:59:05 +0200
Subject: gpio: provide stubs for devres gpio functions

commit 6b3d8145dcfdbbb43f13544e16f44f4574f941dd
"gpiolib: make GPIO_DEVRES depend on GPIOLIB"
breaks builds when device drivers are using devm_gpio*
devres functions without enabling GPIOLIB, relying on
the devres code to be compiled anyway.

Provide stubs so that we get these if we're using the
devres functions without GPIOLIB.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 include/linux/gpio.h | 34 +++++++++++++++++++++++++++-------
 1 file changed, 27 insertions(+), 7 deletions(-)

diff --git a/include/linux/gpio.h b/include/linux/gpio.h
index c691df044458..0c56b9e9c209 100644
--- a/include/linux/gpio.h
+++ b/include/linux/gpio.h
@@ -77,6 +77,15 @@ static inline int irq_to_gpio(unsigned int irq)
 
 #endif /* ! CONFIG_ARCH_HAVE_CUSTOM_GPIO_H */
 
+/* CONFIG_GPIOLIB: bindings for managed devices that want to request gpios */
+
+struct device;
+
+int devm_gpio_request(struct device *dev, unsigned gpio, const char *label);
+int devm_gpio_request_one(struct device *dev, unsigned gpio,
+			  unsigned long flags, const char *label);
+void devm_gpio_free(struct device *dev, unsigned int gpio);
+
 #else /* ! CONFIG_GPIOLIB */
 
 #include <linux/kernel.h>
@@ -241,14 +250,25 @@ gpiochip_remove_pin_ranges(struct gpio_chip *chip)
 	WARN_ON(1);
 }
 
-#endif /* ! CONFIG_GPIOLIB */
+static inline int devm_gpio_request(struct device *dev, unsigned gpio,
+				    const char *label)
+{
+	WARN_ON(1);
+	return -EINVAL;
+}
 
-struct device;
+static inline int devm_gpio_request_one(struct device *dev, unsigned gpio,
+					unsigned long flags, const char *label)
+{
+	WARN_ON(1);
+	return -EINVAL;
+}
 
-/* bindings for managed devices that want to request gpios */
-int devm_gpio_request(struct device *dev, unsigned gpio, const char *label);
-int devm_gpio_request_one(struct device *dev, unsigned gpio,
-			  unsigned long flags, const char *label);
-void devm_gpio_free(struct device *dev, unsigned int gpio);
+static inline void devm_gpio_free(struct device *dev, unsigned int gpio)
+{
+	WARN_ON(1);
+}
+
+#endif /* ! CONFIG_GPIOLIB */
 
 #endif /* __LINUX_GPIO_H */
-- 
cgit 


From 335d7a7d63aa3a6da4d4903ef6e64de4a88f27da Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Tue, 29 Oct 2013 20:10:13 +1100
Subject: gpiolib: include gpio/consumer.h in of_gpio.h for desc_to_gpio()

Fixes this build error on sparc:

In file included from drivers/spi/spi.c:33:0:
include/linux/of_gpio.h: In function 'of_get_named_gpio_flags':
include/linux/of_gpio.h:93:3: error: implicit declaration of function 'desc_to_gpio' [-Werror=implicit-function-declaration]

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 include/linux/of_gpio.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/of_gpio.h b/include/linux/of_gpio.h
index d71f2cc141ae..f14123a5a9df 100644
--- a/include/linux/of_gpio.h
+++ b/include/linux/of_gpio.h
@@ -19,9 +19,9 @@
 #include <linux/errno.h>
 #include <linux/gpio.h>
 #include <linux/of.h>
+#include <linux/gpio/consumer.h>
 
 struct device_node;
-struct gpio_desc;
 
 /*
  * This is Linux-specific flags. By default controllers' and Linux' mapping
-- 
cgit 


From f3ed0b66482fa2a0403280174a998487e9054867 Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Tue, 29 Oct 2013 01:06:23 +1100
Subject: gpiolib: provide a declaration of seq_file in gpio/driver.h

Fixes this build error:

In file included from include/asm-generic/gpio.h:13:0,
                 from include/linux/gpio.h:51,
                 from include/linux/of_gpio.h:20,
                 from arch/powerpc/sysdev/ppc4xx_gpio.c:29:
include/linux/gpio/driver.h:85:14: error: 'struct seq_file' declared inside=
 parameter list [-Werror]
include/linux/gpio/driver.h:85:14: error: its scope is only this definition=
 or declaration, which is probably not what you want [-Werror]

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 include/linux/gpio/driver.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index cd9da3885d79..656a27efb2c8 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -5,6 +5,7 @@
 
 struct device;
 struct gpio_desc;
+struct seq_file;
 
 /**
  * struct gpio_chip - abstract a GPIO controller
-- 
cgit 


From f3d53ed038944a5e785f04952170f7e239a49ae8 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Wed, 30 Oct 2013 09:51:45 +0800
Subject: crypto: skcipher - Use eseqiv even on UP machines

Previously we would use eseqiv on all async ciphers in all cases,
and sync ciphers if we have more than one CPU.  This meant that
chainiv is only used in the case of sync ciphers on a UP machine.

As chainiv may aid attackers by making the IV predictable, even
though this risk itself is small, the above usage pattern causes
it to further leak information about the host.

This patch addresses these issues by using eseqiv even if we're
on a UP machine.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Acked-by: David S. Miller <davem@davemloft.net>
---
 crypto/ablkcipher.c | 21 +--------------------
 1 file changed, 1 insertion(+), 20 deletions(-)

diff --git a/crypto/ablkcipher.c b/crypto/ablkcipher.c
index 7d4a8d28277e..40886c489903 100644
--- a/crypto/ablkcipher.c
+++ b/crypto/ablkcipher.c
@@ -16,9 +16,7 @@
 #include <crypto/internal/skcipher.h>
 #include <linux/cpumask.h>
 #include <linux/err.h>
-#include <linux/init.h>
 #include <linux/kernel.h>
-#include <linux/module.h>
 #include <linux/rtnetlink.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
@@ -30,8 +28,6 @@
 
 #include "internal.h"
 
-static const char *skcipher_default_geniv __read_mostly;
-
 struct ablkcipher_buffer {
 	struct list_head	entry;
 	struct scatter_walk	dst;
@@ -527,8 +523,7 @@ const char *crypto_default_geniv(const struct crypto_alg *alg)
 	    alg->cra_blocksize)
 		return "chainiv";
 
-	return alg->cra_flags & CRYPTO_ALG_ASYNC ?
-	       "eseqiv" : skcipher_default_geniv;
+	return "eseqiv";
 }
 
 static int crypto_givcipher_default(struct crypto_alg *alg, u32 type, u32 mask)
@@ -709,17 +704,3 @@ err:
 	return ERR_PTR(err);
 }
 EXPORT_SYMBOL_GPL(crypto_alloc_ablkcipher);
-
-static int __init skcipher_module_init(void)
-{
-	skcipher_default_geniv = num_possible_cpus() > 1 ?
-				 "eseqiv" : "chainiv";
-	return 0;
-}
-
-static void skcipher_module_exit(void)
-{
-}
-
-module_init(skcipher_module_init);
-module_exit(skcipher_module_exit);
-- 
cgit 


From ec9debbd9a88d8ea86c488d6ffcac419ee7d46d9 Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Tue, 29 Oct 2013 15:11:07 +0800
Subject: virtio-net: correctly handle cpu hotplug notifier during resuming

commit 3ab098df35f8b98b6553edc2e40234af512ba877 (virtio-net: don't respond to
cpu hotplug notifier if we're not ready) tries to bypass the cpu hotplug
notifier by checking the config_enable and does nothing is it was false. So it
need to try to hold the config_lock mutex which may happen in atomic
environment which leads the following warnings:

[  622.944441] CPU0 attaching NULL sched-domain.
[  622.944446] CPU1 attaching NULL sched-domain.
[  622.944485] CPU0 attaching NULL sched-domain.
[  622.950795] BUG: sleeping function called from invalid context at kernel/mutex.c:616
[  622.950796] in_atomic(): 1, irqs_disabled(): 1, pid: 10, name: migration/1
[  622.950796] no locks held by migration/1/10.
[  622.950798] CPU: 1 PID: 10 Comm: migration/1 Not tainted 3.12.0-rc5-wl-01249-gb91e82d #317
[  622.950799] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  622.950802]  0000000000000000 ffff88001d42dba0 ffffffff81a32f22 ffff88001bfb9c70
[  622.950803]  ffff88001d42dbb0 ffffffff810edb02 ffff88001d42dc38 ffffffff81a396ed
[  622.950805]  0000000000000046 ffff88001d42dbe8 ffffffff810e861d 0000000000000000
[  622.950805] Call Trace:
[  622.950810]  [<ffffffff81a32f22>] dump_stack+0x54/0x74
[  622.950815]  [<ffffffff810edb02>] __might_sleep+0x112/0x114
[  622.950817]  [<ffffffff81a396ed>] mutex_lock_nested+0x3c/0x3c6
[  622.950818]  [<ffffffff810e861d>] ? up+0x39/0x3e
[  622.950821]  [<ffffffff8153ea7c>] ? acpi_os_signal_semaphore+0x21/0x2d
[  622.950824]  [<ffffffff81565ed1>] ? acpi_ut_release_mutex+0x5e/0x62
[  622.950828]  [<ffffffff816d04ec>] virtnet_cpu_callback+0x33/0x87
[  622.950830]  [<ffffffff81a42576>] notifier_call_chain+0x3c/0x5e
[  622.950832]  [<ffffffff810e86a8>] __raw_notifier_call_chain+0xe/0x10
[  622.950835]  [<ffffffff810c5556>] __cpu_notify+0x20/0x37
[  622.950836]  [<ffffffff810c5580>] cpu_notify+0x13/0x15
[  622.950838]  [<ffffffff81a237cd>] take_cpu_down+0x27/0x3a
[  622.950841]  [<ffffffff81136289>] stop_machine_cpu_stop+0x93/0xf1
[  622.950842]  [<ffffffff81136167>] cpu_stopper_thread+0xa0/0x12f
[  622.950844]  [<ffffffff811361f6>] ? cpu_stopper_thread+0x12f/0x12f
[  622.950847]  [<ffffffff81119710>] ? lock_release_holdtime.part.7+0xa3/0xa8
[  622.950848]  [<ffffffff81135e4b>] ? cpu_stop_should_run+0x3f/0x47
[  622.950850]  [<ffffffff810ea9b0>] smpboot_thread_fn+0x1c5/0x1e3
[  622.950852]  [<ffffffff810ea7eb>] ? lg_global_unlock+0x67/0x67
[  622.950854]  [<ffffffff810e36b7>] kthread+0xd8/0xe0
[  622.950857]  [<ffffffff81a3bfad>] ? wait_for_common+0x12f/0x164
[  622.950859]  [<ffffffff810e35df>] ? kthread_create_on_node+0x124/0x124
[  622.950861]  [<ffffffff81a45ffc>] ret_from_fork+0x7c/0xb0
[  622.950862]  [<ffffffff810e35df>] ? kthread_create_on_node+0x124/0x124
[  622.950876] smpboot: CPU 1 is now offline
[  623.194556] SMP alternatives: lockdep: fixing up alternatives
[  623.194559] smpboot: Booting Node 0 Processor 1 APIC 0x1
...

A correct fix is to unregister the hotcpu notifier during restore and register a
new one in resume.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Tested-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/virtio_net.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 9fbdfcd1e1a0..bbc9cb84ec1f 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -1118,11 +1118,6 @@ static int virtnet_cpu_callback(struct notifier_block *nfb,
 {
 	struct virtnet_info *vi = container_of(nfb, struct virtnet_info, nb);
 
-	mutex_lock(&vi->config_lock);
-
-	if (!vi->config_enable)
-		goto done;
-
 	switch(action & ~CPU_TASKS_FROZEN) {
 	case CPU_ONLINE:
 	case CPU_DOWN_FAILED:
@@ -1136,8 +1131,6 @@ static int virtnet_cpu_callback(struct notifier_block *nfb,
 		break;
 	}
 
-done:
-	mutex_unlock(&vi->config_lock);
 	return NOTIFY_OK;
 }
 
@@ -1699,6 +1692,8 @@ static int virtnet_freeze(struct virtio_device *vdev)
 	struct virtnet_info *vi = vdev->priv;
 	int i;
 
+	unregister_hotcpu_notifier(&vi->nb);
+
 	/* Prevent config work handler from accessing the device */
 	mutex_lock(&vi->config_lock);
 	vi->config_enable = false;
@@ -1747,6 +1742,10 @@ static int virtnet_restore(struct virtio_device *vdev)
 	virtnet_set_queues(vi, vi->curr_queue_pairs);
 	rtnl_unlock();
 
+	err = register_hotcpu_notifier(&vi->nb);
+	if (err)
+		return err;
+
 	return 0;
 }
 #endif
-- 
cgit 


From c968601d174739cb1e7100c95e0eb3d2f7e91bc9 Mon Sep 17 00:00:00 2001
From: Yuchung Cheng <ycheng@google.com>
Date: Tue, 29 Oct 2013 10:09:05 -0700
Subject: tcp: temporarily disable Fast Open on SYN timeout

Fast Open currently has a fall back feature to address SYN-data being
dropped but it requires the middle-box to pass on regular SYN retry
after SYN-data. This is implemented in commit aab487435 ("net-tcp:
Fast Open client - detecting SYN-data drops")

However some NAT boxes will drop all subsequent packets after first
SYN-data and blackholes the entire connections.  An example is in
commit 356d7d8 "netfilter: nf_conntrack: fix tcp_in_window for Fast
Open".

The sender should note such incidents and fall back to use the regular
TCP handshake on subsequent attempts temporarily as well: after the
second SYN timeouts the original Fast Open SYN is most likely lost.
When such an event recurs Fast Open is disabled based on the number of
recurrences exponentially.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/tcp_metrics.c | 5 +++--
 net/ipv4/tcp_timer.c   | 6 +++++-
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c
index 4a2a84110dfb..2ab09cbae74d 100644
--- a/net/ipv4/tcp_metrics.c
+++ b/net/ipv4/tcp_metrics.c
@@ -671,8 +671,9 @@ void tcp_fastopen_cache_set(struct sock *sk, u16 mss,
 		struct tcp_fastopen_metrics *tfom = &tm->tcpm_fastopen;
 
 		write_seqlock_bh(&fastopen_seqlock);
-		tfom->mss = mss;
-		if (cookie->len > 0)
+		if (mss)
+			tfom->mss = mss;
+		if (cookie && cookie->len > 0)
 			tfom->cookie = *cookie;
 		if (syn_lost) {
 			++tfom->syn_loss;
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index af07b5b23ebf..64f0354c84c7 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -156,12 +156,16 @@ static bool retransmits_timed_out(struct sock *sk,
 static int tcp_write_timeout(struct sock *sk)
 {
 	struct inet_connection_sock *icsk = inet_csk(sk);
+	struct tcp_sock *tp = tcp_sk(sk);
 	int retry_until;
 	bool do_reset, syn_set = false;
 
 	if ((1 << sk->sk_state) & (TCPF_SYN_SENT | TCPF_SYN_RECV)) {
-		if (icsk->icsk_retransmits)
+		if (icsk->icsk_retransmits) {
 			dst_negative_advice(sk);
+			if (tp->syn_fastopen || tp->syn_data)
+				tcp_fastopen_cache_set(sk, 0, NULL, true);
+		}
 		retry_until = icsk->icsk_syn_retries ? : sysctl_tcp_syn_retries;
 		syn_set = true;
 	} else {
-- 
cgit 


From 09ec0d051a66feaeca72a370f0a76da6f266af37 Mon Sep 17 00:00:00 2001
From: Luka Perkov <luka@openwrt.org>
Date: Wed, 30 Oct 2013 00:09:12 +0100
Subject: octeon_mgmt: drop redundant mac address check

Checking if MAC address is valid using is_valid_ether_addr() is already done in
of_get_mac_address().

Signed-off-by: Luka Perkov <luka@openwrt.org>
Acked-by: David Daney <david.daney@cavium.com>
CC: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/octeon/octeon_mgmt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/octeon/octeon_mgmt.c b/drivers/net/ethernet/octeon/octeon_mgmt.c
index 622aa75904c4..1b326cbcd34b 100644
--- a/drivers/net/ethernet/octeon/octeon_mgmt.c
+++ b/drivers/net/ethernet/octeon/octeon_mgmt.c
@@ -1545,7 +1545,7 @@ static int octeon_mgmt_probe(struct platform_device *pdev)
 
 	mac = of_get_mac_address(pdev->dev.of_node);
 
-	if (mac && is_valid_ether_addr(mac))
+	if (mac)
 		memcpy(netdev->dev_addr, mac, ETH_ALEN);
 	else
 		eth_hw_addr_random(netdev);
-- 
cgit 


From 6c7a9a3c7838eab1f17ef00c87925151be06cf1c Mon Sep 17 00:00:00 2001
From: Luka Perkov <luka@openwrt.org>
Date: Wed, 30 Oct 2013 00:10:01 +0100
Subject: mvneta: drop redundant mac address check

Checking if MAC address is valid using is_valid_ether_addr() is already done in
of_get_mac_address().

Signed-off-by: Luka Perkov <luka@openwrt.org>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
CC: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/marvell/mvneta.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index e35bac7cfdf1..7d99e695a110 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -2811,7 +2811,7 @@ static int mvneta_probe(struct platform_device *pdev)
 	}
 
 	dt_mac_addr = of_get_mac_address(dn);
-	if (dt_mac_addr && is_valid_ether_addr(dt_mac_addr)) {
+	if (dt_mac_addr) {
 		mac_from = "device tree";
 		memcpy(dev->dev_addr, dt_mac_addr, ETH_ALEN);
 	} else {
-- 
cgit 


From 99470819b1a89f77c1eb44f6b3328c1aeb2c87d0 Mon Sep 17 00:00:00 2001
From: Luka Perkov <luka@openwrt.org>
Date: Wed, 30 Oct 2013 00:11:00 +0100
Subject: arc_emac: drop redundant mac address check

Checking if MAC address is valid using is_valid_ether_addr() is already done in
of_get_mac_address(). While at it, reorganize checking so it matches checks in
other drivers.

Signed-off-by: Luka Perkov <luka@openwrt.org>
CC: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
CC: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/arc/emac_main.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/arc/emac_main.c b/drivers/net/ethernet/arc/emac_main.c
index 9e1601487263..d818ded6c05c 100644
--- a/drivers/net/ethernet/arc/emac_main.c
+++ b/drivers/net/ethernet/arc/emac_main.c
@@ -725,10 +725,10 @@ static int arc_emac_probe(struct platform_device *pdev)
 	/* Get MAC address from device tree */
 	mac_addr = of_get_mac_address(pdev->dev.of_node);
 
-	if (!mac_addr || !is_valid_ether_addr(mac_addr))
-		eth_hw_addr_random(ndev);
-	else
+	if (mac_addr)
 		memcpy(ndev->dev_addr, mac_addr, ETH_ALEN);
+	else
+		eth_hw_addr_random(ndev);
 
 	dev_info(&pdev->dev, "MAC address is now %pM\n", ndev->dev_addr);
 
-- 
cgit 


From b4dfd326c29c241c2bb8463167217eb2438b7c3d Mon Sep 17 00:00:00 2001
From: Alistair Popple <alistair@popple.id.au>
Date: Wed, 30 Oct 2013 10:50:37 +1100
Subject: ibm emac: Don't call napi_complete if napi_reschedule failed

This patch fixes a bug which would trigger the BUG_ON() at
net/core/dev.c:4156. It was found that this was due to continuing
processing in the current poll call even when the call to
napi_reschedule failed, indicating the device was already on the
polling list. This resulted in an extra call to napi_complete which
triggered the BUG_ON().

This patch ensures that we only contine processing rotting packets in
the current mal_poll call if we are not already on the polling list.

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/ibm/emac/mal.c | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/ibm/emac/mal.c b/drivers/net/ethernet/ibm/emac/mal.c
index dac564c25440..909f9b6698b5 100644
--- a/drivers/net/ethernet/ibm/emac/mal.c
+++ b/drivers/net/ethernet/ibm/emac/mal.c
@@ -442,15 +442,11 @@ static int mal_poll(struct napi_struct *napi, int budget)
 		if (unlikely(mc->ops->peek_rx(mc->dev) ||
 			     test_bit(MAL_COMMAC_RX_STOPPED, &mc->flags))) {
 			MAL_DBG2(mal, "rotting packet" NL);
-			if (napi_reschedule(napi))
-				mal_disable_eob_irq(mal);
-			else
-				MAL_DBG2(mal, "already in poll list" NL);
-
-			if (budget > 0)
-				goto again;
-			else
+			if (!napi_reschedule(napi))
 				goto more_work;
+
+			mal_disable_eob_irq(mal);
+			goto again;
 		}
 		mc->ops->poll_tx(mc->dev);
 	}
-- 
cgit 


From 32663b8b8948cc05f812ab82c1c7db2db3ddf717 Mon Sep 17 00:00:00 2001
From: Alistair Popple <alistair@popple.id.au>
Date: Wed, 30 Oct 2013 10:50:38 +1100
Subject: ibm emac: Fix locking for enable/disable eob irq

Calls to mal_enable_eob_irq perform a read-write-modify of a dcr to
enable device irqs which is protected by a spin lock. However calls to
mal_disable_eob_irq do not take the corresponding lock.

This patch resolves the problem by ensuring that calls to
mal_disable_eob_irq also take the lock.

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/ibm/emac/mal.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/ibm/emac/mal.c b/drivers/net/ethernet/ibm/emac/mal.c
index 909f9b6698b5..e7847510eda2 100644
--- a/drivers/net/ethernet/ibm/emac/mal.c
+++ b/drivers/net/ethernet/ibm/emac/mal.c
@@ -263,7 +263,9 @@ static inline void mal_schedule_poll(struct mal_instance *mal)
 {
 	if (likely(napi_schedule_prep(&mal->napi))) {
 		MAL_DBG2(mal, "schedule_poll" NL);
+		spin_lock(&mal->lock);
 		mal_disable_eob_irq(mal);
+		spin_unlock(&mal->lock);
 		__napi_schedule(&mal->napi);
 	} else
 		MAL_DBG2(mal, "already in poll" NL);
@@ -445,7 +447,9 @@ static int mal_poll(struct napi_struct *napi, int budget)
 			if (!napi_reschedule(napi))
 				goto more_work;
 
+			spin_lock_irqsave(&mal->lock, flags);
 			mal_disable_eob_irq(mal);
+			spin_unlock_irqrestore(&mal->lock, flags);
 			goto again;
 		}
 		mc->ops->poll_tx(mc->dev);
-- 
cgit 


From b757a62e9f0df5c997c666dca4ad81197b5d8917 Mon Sep 17 00:00:00 2001
From: Nathan Hintz <nlhintz@hotmail.com>
Date: Tue, 29 Oct 2013 19:32:01 -0700
Subject: bgmac: don't update slot on skb alloc/dma mapping error
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Don't update the slot in "bgmac_dma_rx_skb_for_slot" unless both the
skb alloc and dma mapping are successful; and free the newly allocated
skb if a dma mapping error occurs.  This relieves the caller of the need
to deduce/execute the appropriate cleanup action required when an error
occurs.

Signed-off-by: Nathan Hintz <nlhintz@hotmail.com>
Acked-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bgmac.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index 249468f95365..9e8a3e024e01 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -244,25 +244,33 @@ static int bgmac_dma_rx_skb_for_slot(struct bgmac *bgmac,
 				     struct bgmac_slot_info *slot)
 {
 	struct device *dma_dev = bgmac->core->dma_dev;
+	struct sk_buff *skb;
+	dma_addr_t dma_addr;
 	struct bgmac_rx_header *rx;
 
 	/* Alloc skb */
-	slot->skb = netdev_alloc_skb(bgmac->net_dev, BGMAC_RX_BUF_SIZE);
-	if (!slot->skb)
+	skb = netdev_alloc_skb(bgmac->net_dev, BGMAC_RX_BUF_SIZE);
+	if (!skb)
 		return -ENOMEM;
 
 	/* Poison - if everything goes fine, hardware will overwrite it */
-	rx = (struct bgmac_rx_header *)slot->skb->data;
+	rx = (struct bgmac_rx_header *)skb->data;
 	rx->len = cpu_to_le16(0xdead);
 	rx->flags = cpu_to_le16(0xbeef);
 
 	/* Map skb for the DMA */
-	slot->dma_addr = dma_map_single(dma_dev, slot->skb->data,
-					BGMAC_RX_BUF_SIZE, DMA_FROM_DEVICE);
-	if (dma_mapping_error(dma_dev, slot->dma_addr)) {
+	dma_addr = dma_map_single(dma_dev, skb->data,
+				  BGMAC_RX_BUF_SIZE, DMA_FROM_DEVICE);
+	if (dma_mapping_error(dma_dev, dma_addr)) {
 		bgmac_err(bgmac, "DMA mapping error\n");
+		dev_kfree_skb(skb);
 		return -ENOMEM;
 	}
+
+	/* Update the slot */
+	slot->skb = skb;
+	slot->dma_addr = dma_addr;
+
 	if (slot->dma_addr & 0xC0000000)
 		bgmac_warn(bgmac, "DMA address using 0xC0000000 bit(s), it may need translation trick\n");
 
-- 
cgit 


From 9a47938b226cc2b8e2afd72b0f1ca1a7e1367cf5 Mon Sep 17 00:00:00 2001
From: Fan Li <fanofcode.li@samsung.com>
Date: Tue, 29 Oct 2013 16:21:47 +0800
Subject: f2fs: change the method of calculating the number summary blocks

npages_for_summary_flush uses (SUMMARY_SIZE + 1) as the size of a f2fs_summary
while its actual size is  SUMMARY_SIZE. So the result sometimes is bigger than
actual number by one, which causes checkpoint can't be written into disk
contiguously, and sometimes summary blocks can't be compacted like they should.
Besides, when writing summary blocks into pages, if remain space in a page
isn't big enough for one f2fs_summary, it will be left unused, current code
seems not to take it into account.

Signed-off-by: Fan Li <fanofcode.li@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/segment.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index c7161defff90..3d4d5fc19e6f 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -264,9 +264,8 @@ static void __add_sum_entry(struct f2fs_sb_info *sbi, int type,
  */
 int npages_for_summary_flush(struct f2fs_sb_info *sbi)
 {
-	int total_size_bytes = 0;
 	int valid_sum_count = 0;
-	int i, sum_space;
+	int i, sum_in_page;
 
 	for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) {
 		if (sbi->ckpt->alloc_type[i] == SSR)
@@ -275,13 +274,12 @@ int npages_for_summary_flush(struct f2fs_sb_info *sbi)
 			valid_sum_count += curseg_blkoff(sbi, i);
 	}
 
-	total_size_bytes = valid_sum_count * (SUMMARY_SIZE + 1)
-			+ sizeof(struct nat_journal) + 2
-			+ sizeof(struct sit_journal) + 2;
-	sum_space = PAGE_CACHE_SIZE - SUM_FOOTER_SIZE;
-	if (total_size_bytes < sum_space)
+	sum_in_page = (PAGE_CACHE_SIZE - 2 * SUM_JOURNAL_SIZE -
+			SUM_FOOTER_SIZE) / SUMMARY_SIZE;
+	if (valid_sum_count <= sum_in_page)
 		return 1;
-	else if (total_size_bytes < 2 * sum_space)
+	else if ((valid_sum_count - sum_in_page) <=
+		(PAGE_CACHE_SIZE - SUM_FOOTER_SIZE) / SUMMARY_SIZE)
 		return 2;
 	return 3;
 }
-- 
cgit 


From 44c60bf2b9f2808e127fa4cd3b11b50a46cf5817 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao2.yu@samsung.com>
Date: Tue, 29 Oct 2013 14:50:40 +0800
Subject: f2fs: check all ones or zeros bitmap with bitops for better mount
 performance

Previously, check_block_count check valid_map with bit data type in common
scenario that sit has all ones or zeros bitmap, it makes low mount performance.
So let's check the special bitmap with integer data type instead of the bit one.

v1-->v2:
 o use find_next_{zero_}bit_le for better performance and readable as Jaegeuk
   suggested.
 o use neat logogram in comment as Gu Zheng suggested.
 o search continuous ones or zeros for better performance when checking mixed
   bitmap.

Suggested-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Signed-off-by: Shu Tan <shu.tan@samsung.com>
Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/segment.h | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 001d4c4d97fd..269f690b4e24 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -547,8 +547,9 @@ static inline void check_block_count(struct f2fs_sb_info *sbi,
 {
 	struct f2fs_sm_info *sm_info = SM_I(sbi);
 	unsigned int end_segno = sm_info->segment_count - 1;
+	bool is_valid  = test_bit_le(0, raw_sit->valid_map) ? true : false;
 	int valid_blocks = 0;
-	int i;
+	int cur_pos = 0, next_pos;
 
 	/* check segment usage */
 	BUG_ON(GET_SIT_VBLOCKS(raw_sit) > sbi->blocks_per_seg);
@@ -557,9 +558,19 @@ static inline void check_block_count(struct f2fs_sb_info *sbi,
 	BUG_ON(segno > end_segno);
 
 	/* check bitmap with valid block count */
-	for (i = 0; i < sbi->blocks_per_seg; i++)
-		if (f2fs_test_bit(i, raw_sit->valid_map))
-			valid_blocks++;
+	do {
+		if (is_valid) {
+			next_pos = find_next_zero_bit_le(&raw_sit->valid_map,
+					sbi->blocks_per_seg,
+					cur_pos);
+			valid_blocks += next_pos - cur_pos;
+		} else
+			next_pos = find_next_bit_le(&raw_sit->valid_map,
+					sbi->blocks_per_seg,
+					cur_pos);
+		cur_pos = next_pos;
+		is_valid = !is_valid;
+	} while (cur_pos < sbi->blocks_per_seg);
 	BUG_ON(GET_SIT_VBLOCKS(raw_sit) != valid_blocks);
 }
 #else
-- 
cgit 


From b2c32b32a21291107c3797448e0bd36716c8e445 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 27 Oct 2013 13:43:04 +0100
Subject: c6x: remove unused COMMON_CLKDEV Kconfig parameter

This removes the COMMON_CLKDEV kernel configuration
parameter defined in arch/c6x/Kconfig, but used nowhere
in the makefiles and source code.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Mark Salter <msalter@redhat.com>
---
 arch/c6x/Kconfig | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
index b4f77258cacc..77ea09b8bce1 100644
--- a/arch/c6x/Kconfig
+++ b/arch/c6x/Kconfig
@@ -36,9 +36,6 @@ config GENERIC_HWEIGHT
 config GENERIC_BUG
 	def_bool y
 
-config COMMON_CLKDEV
-	def_bool y
-
 config C6X_BIG_KERNEL
 	bool "Build a big kernel"
 	help
-- 
cgit 


From 2883229309a13760296abc91ac5f64f3dffc4801 Mon Sep 17 00:00:00 2001
From: Stanimir Varbanov <svarbanov@mm-sol.com>
Date: Tue, 15 Oct 2013 17:11:17 +0300
Subject: ARM: DT: msm: Add Qualcomm's PRNG driver binding document

This adds Qualcomm PRNG driver device tree binding documentation
to use as an example in dts trees.

Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 Documentation/devicetree/bindings/rng/qcom,prng.txt | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/rng/qcom,prng.txt

diff --git a/Documentation/devicetree/bindings/rng/qcom,prng.txt b/Documentation/devicetree/bindings/rng/qcom,prng.txt
new file mode 100644
index 000000000000..8e5853c2879b
--- /dev/null
+++ b/Documentation/devicetree/bindings/rng/qcom,prng.txt
@@ -0,0 +1,17 @@
+Qualcomm MSM pseudo random number generator.
+
+Required properties:
+
+- compatible  : should be "qcom,prng"
+- reg         : specifies base physical address and size of the registers map
+- clocks      : phandle to clock-controller plus clock-specifier pair
+- clock-names : "core" clocks all registers, FIFO and circuits in PRNG IP block
+
+Example:
+
+	rng@f9bff000 {
+		compatible = "qcom,prng";
+		reg = <0xf9bff000 0x200>;
+		clocks = <&clock GCC_PRNG_AHB_CLK>;
+		clock-names = "core";
+	};
-- 
cgit 


From 0d289788247a4751b2dfa0a23960ac4de9450a94 Mon Sep 17 00:00:00 2001
From: Stanimir Varbanov <svarbanov@mm-sol.com>
Date: Tue, 15 Oct 2013 17:11:18 +0300
Subject: hwrng: msm - Add PRNG support for MSM SoC's

This adds a driver for hardware random number generator present
on Qualcomm MSM SoC's.

Signed-off-by: Stanimir Varbanov <svarbanov@mm-sol.com>
Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/char/hw_random/Kconfig   |  12 +++
 drivers/char/hw_random/Makefile  |   1 +
 drivers/char/hw_random/msm-rng.c | 197 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 210 insertions(+)
 create mode 100644 drivers/char/hw_random/msm-rng.c

diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 0a331c341fff..989ca028d781 100644
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -327,3 +327,15 @@ config HW_RANDOM_TPM
 	  module will be called tpm-rng.
 
 	  If unsure, say Y.
+
+config HW_RANDOM_MSM
+	tristate "Qualcomm MSM Random Number Generator support"
+	depends on HW_RANDOM && ARCH_MSM
+	---help---
+	  This driver provides kernel-side support for the Random Number
+	  Generator hardware found on Qualcomm MSM SoCs.
+
+	  To compile this driver as a module, choose M here. the
+	  module will be called msm-rng.
+
+	  If unsure, say Y.
diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile
index 7c8aa8077f5e..32d8e7330b23 100644
--- a/drivers/char/hw_random/Makefile
+++ b/drivers/char/hw_random/Makefile
@@ -28,3 +28,4 @@ obj-$(CONFIG_HW_RANDOM_PSERIES) += pseries-rng.o
 obj-$(CONFIG_HW_RANDOM_EXYNOS)	+= exynos-rng.o
 obj-$(CONFIG_HW_RANDOM_TPM) += tpm-rng.o
 obj-$(CONFIG_HW_RANDOM_BCM2835) += bcm2835-rng.o
+obj-$(CONFIG_HW_RANDOM_MSM) += msm-rng.o
diff --git a/drivers/char/hw_random/msm-rng.c b/drivers/char/hw_random/msm-rng.c
new file mode 100644
index 000000000000..148521e51dc6
--- /dev/null
+++ b/drivers/char/hw_random/msm-rng.c
@@ -0,0 +1,197 @@
+/*
+ * Copyright (c) 2011-2013, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/hw_random.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+
+/* Device specific register offsets */
+#define PRNG_DATA_OUT		0x0000
+#define PRNG_STATUS		0x0004
+#define PRNG_LFSR_CFG		0x0100
+#define PRNG_CONFIG		0x0104
+
+/* Device specific register masks and config values */
+#define PRNG_LFSR_CFG_MASK	0x0000ffff
+#define PRNG_LFSR_CFG_CLOCKS	0x0000dddd
+#define PRNG_CONFIG_HW_ENABLE	BIT(1)
+#define PRNG_STATUS_DATA_AVAIL	BIT(0)
+
+#define MAX_HW_FIFO_DEPTH	16
+#define MAX_HW_FIFO_SIZE	(MAX_HW_FIFO_DEPTH * 4)
+#define WORD_SZ			4
+
+struct msm_rng {
+	void __iomem *base;
+	struct clk *clk;
+	struct hwrng hwrng;
+};
+
+#define to_msm_rng(p)	container_of(p, struct msm_rng, hwrng)
+
+static int msm_rng_enable(struct hwrng *hwrng, int enable)
+{
+	struct msm_rng *rng = to_msm_rng(hwrng);
+	u32 val;
+	int ret;
+
+	ret = clk_prepare_enable(rng->clk);
+	if (ret)
+		return ret;
+
+	if (enable) {
+		/* Enable PRNG only if it is not already enabled */
+		val = readl_relaxed(rng->base + PRNG_CONFIG);
+		if (val & PRNG_CONFIG_HW_ENABLE)
+			goto already_enabled;
+
+		val = readl_relaxed(rng->base + PRNG_LFSR_CFG);
+		val &= ~PRNG_LFSR_CFG_MASK;
+		val |= PRNG_LFSR_CFG_CLOCKS;
+		writel(val, rng->base + PRNG_LFSR_CFG);
+
+		val = readl_relaxed(rng->base + PRNG_CONFIG);
+		val |= PRNG_CONFIG_HW_ENABLE;
+		writel(val, rng->base + PRNG_CONFIG);
+	} else {
+		val = readl_relaxed(rng->base + PRNG_CONFIG);
+		val &= ~PRNG_CONFIG_HW_ENABLE;
+		writel(val, rng->base + PRNG_CONFIG);
+	}
+
+already_enabled:
+	clk_disable_unprepare(rng->clk);
+	return 0;
+}
+
+static int msm_rng_read(struct hwrng *hwrng, void *data, size_t max, bool wait)
+{
+	struct msm_rng *rng = to_msm_rng(hwrng);
+	size_t currsize = 0;
+	u32 *retdata = data;
+	size_t maxsize;
+	int ret;
+	u32 val;
+
+	/* calculate max size bytes to transfer back to caller */
+	maxsize = min_t(size_t, MAX_HW_FIFO_SIZE, max);
+
+	/* no room for word data */
+	if (maxsize < WORD_SZ)
+		return 0;
+
+	ret = clk_prepare_enable(rng->clk);
+	if (ret)
+		return ret;
+
+	/* read random data from hardware */
+	do {
+		val = readl_relaxed(rng->base + PRNG_STATUS);
+		if (!(val & PRNG_STATUS_DATA_AVAIL))
+			break;
+
+		val = readl_relaxed(rng->base + PRNG_DATA_OUT);
+		if (!val)
+			break;
+
+		*retdata++ = val;
+		currsize += WORD_SZ;
+
+		/* make sure we stay on 32bit boundary */
+		if ((maxsize - currsize) < WORD_SZ)
+			break;
+	} while (currsize < maxsize);
+
+	clk_disable_unprepare(rng->clk);
+
+	return currsize;
+}
+
+static int msm_rng_init(struct hwrng *hwrng)
+{
+	return msm_rng_enable(hwrng, 1);
+}
+
+static void msm_rng_cleanup(struct hwrng *hwrng)
+{
+	msm_rng_enable(hwrng, 0);
+}
+
+static int msm_rng_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	struct msm_rng *rng;
+	int ret;
+
+	rng = devm_kzalloc(&pdev->dev, sizeof(*rng), GFP_KERNEL);
+	if (!rng)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, rng);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	rng->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(rng->base))
+		return PTR_ERR(rng->base);
+
+	rng->clk = devm_clk_get(&pdev->dev, "core");
+	if (IS_ERR(rng->clk))
+		return PTR_ERR(rng->clk);
+
+	rng->hwrng.name = KBUILD_MODNAME,
+	rng->hwrng.init = msm_rng_init,
+	rng->hwrng.cleanup = msm_rng_cleanup,
+	rng->hwrng.read = msm_rng_read,
+
+	ret = hwrng_register(&rng->hwrng);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to register hwrng\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int msm_rng_remove(struct platform_device *pdev)
+{
+	struct msm_rng *rng = platform_get_drvdata(pdev);
+
+	hwrng_unregister(&rng->hwrng);
+	return 0;
+}
+
+static const struct of_device_id msm_rng_of_match[] = {
+	{ .compatible = "qcom,prng", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, msm_rng_of_match);
+
+static struct platform_driver msm_rng_driver = {
+	.probe = msm_rng_probe,
+	.remove = msm_rng_remove,
+	.driver = {
+		.name = KBUILD_MODNAME,
+		.owner = THIS_MODULE,
+		.of_match_table = of_match_ptr(msm_rng_of_match),
+	}
+};
+module_platform_driver(msm_rng_driver);
+
+MODULE_ALIAS("platform:" KBUILD_MODNAME);
+MODULE_AUTHOR("The Linux Foundation");
+MODULE_DESCRIPTION("Qualcomm MSM random number generator driver");
+MODULE_LICENSE("GPL v2");
-- 
cgit 


From 313ea293e9c4d1eabcaddd2c0800f083b03c2a2e Mon Sep 17 00:00:00 2001
From: Ruchika Gupta <ruchika.gupta@freescale.com>
Date: Fri, 25 Oct 2013 12:01:01 +0530
Subject: crypto: caam - Add Platform driver for Job Ring

The SEC Job Rings are now available as individual devices.
This would enable sharing of job rings between kernel and
user space. Job Rings can now be dynamically bound/unbound
from kernel.

Changes are made in the following layers of CAAM Driver
1. Controller driver
        - Does basic initialization of CAAM Block.
        - Creates platform devices for Job Rings.
(Earlier the initialization of Job ring  was done
 by the controller driver)

2. JobRing Platform driver
        - Manages the platform Job Ring devices created
          by the controller driver

Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Reviewed-by: Garg Vakul-B16394 <vakul@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/caam/Kconfig    |  25 +++-
 drivers/crypto/caam/Makefile   |   4 +-
 drivers/crypto/caam/caamalg.c  |   4 +-
 drivers/crypto/caam/caamhash.c |   4 +-
 drivers/crypto/caam/caamrng.c  |   7 +-
 drivers/crypto/caam/ctrl.c     |  30 +++--
 drivers/crypto/caam/intern.h   |   6 +-
 drivers/crypto/caam/jr.c       | 285 +++++++++++++++++++++++++----------------
 drivers/crypto/caam/jr.h       |   3 -
 9 files changed, 232 insertions(+), 136 deletions(-)

diff --git a/drivers/crypto/caam/Kconfig b/drivers/crypto/caam/Kconfig
index ca89f6b84b06..e7555ff4cafd 100644
--- a/drivers/crypto/caam/Kconfig
+++ b/drivers/crypto/caam/Kconfig
@@ -4,16 +4,29 @@ config CRYPTO_DEV_FSL_CAAM
 	help
 	  Enables the driver module for Freescale's Cryptographic Accelerator
 	  and Assurance Module (CAAM), also known as the SEC version 4 (SEC4).
-	  This module adds a job ring operation interface, and configures h/w
+	  This module creates job ring devices, and configures h/w
 	  to operate as a DPAA component automatically, depending
 	  on h/w feature availability.
 
 	  To compile this driver as a module, choose M here: the module
 	  will be called caam.
 
+config CRYPTO_DEV_FSL_CAAM_JR
+	tristate "Freescale CAAM Job Ring driver backend"
+	depends on CRYPTO_DEV_FSL_CAAM
+	default y
+	help
+	  Enables the driver module for Job Rings which are part of
+	  Freescale's Cryptographic Accelerator
+	  and Assurance Module (CAAM). This module adds a job ring operation
+	  interface.
+
+	  To compile this driver as a module, choose M here: the module
+	  will be called caam_jr.
+
 config CRYPTO_DEV_FSL_CAAM_RINGSIZE
 	int "Job Ring size"
-	depends on CRYPTO_DEV_FSL_CAAM
+	depends on CRYPTO_DEV_FSL_CAAM_JR
 	range 2 9
 	default "9"
 	help
@@ -31,7 +44,7 @@ config CRYPTO_DEV_FSL_CAAM_RINGSIZE
 
 config CRYPTO_DEV_FSL_CAAM_INTC
 	bool "Job Ring interrupt coalescing"
-	depends on CRYPTO_DEV_FSL_CAAM
+	depends on CRYPTO_DEV_FSL_CAAM_JR
 	default n
 	help
 	  Enable the Job Ring's interrupt coalescing feature.
@@ -62,7 +75,7 @@ config CRYPTO_DEV_FSL_CAAM_INTC_TIME_THLD
 
 config CRYPTO_DEV_FSL_CAAM_CRYPTO_API
 	tristate "Register algorithm implementations with the Crypto API"
-	depends on CRYPTO_DEV_FSL_CAAM
+	depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR
 	default y
 	select CRYPTO_ALGAPI
 	select CRYPTO_AUTHENC
@@ -76,7 +89,7 @@ config CRYPTO_DEV_FSL_CAAM_CRYPTO_API
 
 config CRYPTO_DEV_FSL_CAAM_AHASH_API
 	tristate "Register hash algorithm implementations with Crypto API"
-	depends on CRYPTO_DEV_FSL_CAAM
+	depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR
 	default y
 	select CRYPTO_HASH
 	help
@@ -88,7 +101,7 @@ config CRYPTO_DEV_FSL_CAAM_AHASH_API
 
 config CRYPTO_DEV_FSL_CAAM_RNG_API
 	tristate "Register caam device for hwrng API"
-	depends on CRYPTO_DEV_FSL_CAAM
+	depends on CRYPTO_DEV_FSL_CAAM && CRYPTO_DEV_FSL_CAAM_JR
 	default y
 	select CRYPTO_RNG
 	select HW_RANDOM
diff --git a/drivers/crypto/caam/Makefile b/drivers/crypto/caam/Makefile
index d56bd0ec65d8..550758a333e7 100644
--- a/drivers/crypto/caam/Makefile
+++ b/drivers/crypto/caam/Makefile
@@ -6,8 +6,10 @@ ifeq ($(CONFIG_CRYPTO_DEV_FSL_CAAM_DEBUG), y)
 endif
 
 obj-$(CONFIG_CRYPTO_DEV_FSL_CAAM) += caam.o
+obj-$(CONFIG_CRYPTO_DEV_FSL_CAAM_JR) += caam_jr.o
 obj-$(CONFIG_CRYPTO_DEV_FSL_CAAM_CRYPTO_API) += caamalg.o
 obj-$(CONFIG_CRYPTO_DEV_FSL_CAAM_AHASH_API) += caamhash.o
 obj-$(CONFIG_CRYPTO_DEV_FSL_CAAM_RNG_API) += caamrng.o
 
-caam-objs := ctrl.o jr.o error.o key_gen.o
+caam-objs := ctrl.o
+caam_jr-objs := jr.o key_gen.o error.o
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index 86a0d415b9a7..ad9781e646c0 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -2071,13 +2071,15 @@ static int caam_cra_init(struct crypto_tfm *tfm)
 		 container_of(alg, struct caam_crypto_alg, crypto_alg);
 	struct caam_ctx *ctx = crypto_tfm_ctx(tfm);
 	struct caam_drv_private *priv = dev_get_drvdata(caam_alg->ctrldev);
+	struct platform_device *pdev;
 	int tgt_jr = atomic_inc_return(&priv->tfm_count);
 
 	/*
 	 * distribute tfms across job rings to ensure in-order
 	 * crypto request processing per tfm
 	 */
-	ctx->jrdev = priv->jrdev[(tgt_jr / 2) % priv->total_jobrs];
+	pdev = priv->jrpdev[(tgt_jr / 2) % priv->total_jobrs];
+	ctx->jrdev = &pdev->dev;
 
 	/* copy descriptor header template value */
 	ctx->class1_alg_type = OP_TYPE_CLASS1_ALG | caam_alg->class1_alg_type;
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c
index ca6218eee460..91a93541ed7f 100644
--- a/drivers/crypto/caam/caamhash.c
+++ b/drivers/crypto/caam/caamhash.c
@@ -1680,12 +1680,14 @@ static int caam_hash_cra_init(struct crypto_tfm *tfm)
 					 HASH_MSG_LEN + SHA512_DIGEST_SIZE };
 	int tgt_jr = atomic_inc_return(&priv->tfm_count);
 	int ret = 0;
+	struct platform_device *pdev;
 
 	/*
 	 * distribute tfms across job rings to ensure in-order
 	 * crypto request processing per tfm
 	 */
-	ctx->jrdev = priv->jrdev[tgt_jr % priv->total_jobrs];
+	pdev = priv->jrpdev[tgt_jr % priv->total_jobrs];
+	ctx->jrdev = &pdev->dev;
 
 	/* copy descriptor header template value */
 	ctx->alg_type = OP_TYPE_CLASS2_ALG | caam_hash->alg_type;
diff --git a/drivers/crypto/caam/caamrng.c b/drivers/crypto/caam/caamrng.c
index 588ad2288f82..4e4ed155c5be 100644
--- a/drivers/crypto/caam/caamrng.c
+++ b/drivers/crypto/caam/caamrng.c
@@ -279,7 +279,7 @@ static void __exit caam_rng_exit(void)
 static int __init caam_rng_init(void)
 {
 	struct device_node *dev_node;
-	struct platform_device *pdev;
+	struct platform_device *pdev, *jrpdev;
 	struct device *ctrldev;
 	struct caam_drv_private *priv;
 
@@ -305,9 +305,10 @@ static int __init caam_rng_init(void)
 	if (!priv)
 		return -ENODEV;
 
-	caam_init_rng(&rng_ctx, priv->jrdev[0]);
+	jrpdev = priv->jrpdev[0];
+	caam_init_rng(&rng_ctx, &jrpdev->dev);
 
-	dev_info(priv->jrdev[0], "registering rng-caam\n");
+	dev_info(&jrpdev->dev, "registering rng-caam\n");
 	return hwrng_register(&caam_rng);
 }
 
diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index 26438cd12685..52cd6c1b71fc 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -268,7 +268,6 @@ static int caam_remove(struct platform_device *pdev)
 {
 	struct device *ctrldev;
 	struct caam_drv_private *ctrlpriv;
-	struct caam_drv_private_jr *jrpriv;
 	struct caam_full __iomem *topregs;
 	int ring, ret = 0;
 
@@ -276,11 +275,10 @@ static int caam_remove(struct platform_device *pdev)
 	ctrlpriv = dev_get_drvdata(ctrldev);
 	topregs = (struct caam_full __iomem *)ctrlpriv->ctrl;
 
-	/* shut down JobRs */
+	/* Remove platform devices for JobRs */
 	for (ring = 0; ring < ctrlpriv->total_jobrs; ring++) {
-		ret |= caam_jr_shutdown(ctrlpriv->jrdev[ring]);
-		jrpriv = dev_get_drvdata(ctrlpriv->jrdev[ring]);
-		irq_dispose_mapping(jrpriv->irq);
+		if (ctrlpriv->jrpdev[ring])
+			of_device_unregister(ctrlpriv->jrpdev[ring]);
 	}
 
 	/* De-initialize RNG state handles initialized by this driver. */
@@ -295,7 +293,7 @@ static int caam_remove(struct platform_device *pdev)
 	/* Unmap controller region */
 	iounmap(&topregs->ctrl);
 
-	kfree(ctrlpriv->jrdev);
+	kfree(ctrlpriv->jrpdev);
 	kfree(ctrlpriv);
 
 	return ret;
@@ -450,8 +448,9 @@ static int caam_probe(struct platform_device *pdev)
 			rspec++;
 	}
 
-	ctrlpriv->jrdev = kzalloc(sizeof(struct device *) * rspec, GFP_KERNEL);
-	if (ctrlpriv->jrdev == NULL) {
+	ctrlpriv->jrpdev = kzalloc(sizeof(struct platform_device *) * rspec,
+								GFP_KERNEL);
+	if (ctrlpriv->jrpdev == NULL) {
 		iounmap(&topregs->ctrl);
 		return -ENOMEM;
 	}
@@ -459,13 +458,24 @@ static int caam_probe(struct platform_device *pdev)
 	ring = 0;
 	ctrlpriv->total_jobrs = 0;
 	for_each_compatible_node(np, NULL, "fsl,sec-v4.0-job-ring") {
-		caam_jr_probe(pdev, np, ring);
+		ctrlpriv->jrpdev[ring] =
+				of_platform_device_create(np, NULL, dev);
+		if (!ctrlpriv->jrpdev[ring]) {
+			pr_warn("JR%d Platform device creation error\n", ring);
+			continue;
+		}
 		ctrlpriv->total_jobrs++;
 		ring++;
 	}
 	if (!ring) {
 		for_each_compatible_node(np, NULL, "fsl,sec4.0-job-ring") {
-			caam_jr_probe(pdev, np, ring);
+			ctrlpriv->jrpdev[ring] =
+				of_platform_device_create(np, NULL, dev);
+			if (!ctrlpriv->jrpdev[ring]) {
+				pr_warn("JR%d Platform device creation error\n",
+					ring);
+				continue;
+			}
 			ctrlpriv->total_jobrs++;
 			ring++;
 		}
diff --git a/drivers/crypto/caam/intern.h b/drivers/crypto/caam/intern.h
index bbc1ac9ec720..bff4acd3882d 100644
--- a/drivers/crypto/caam/intern.h
+++ b/drivers/crypto/caam/intern.h
@@ -37,8 +37,8 @@ struct caam_jrentry_info {
 
 /* Private sub-storage for a single JobR */
 struct caam_drv_private_jr {
-	struct device *parentdev;	/* points back to controller dev */
-	struct platform_device *jr_pdev;/* points to platform device for JR */
+	struct list_head	list_node;	/* Job Ring device list */
+	struct device		*dev;
 	int ridx;
 	struct caam_job_ring __iomem *rregs;	/* JobR's register space */
 	struct tasklet_struct irqtask;
@@ -63,7 +63,7 @@ struct caam_drv_private_jr {
 struct caam_drv_private {
 
 	struct device *dev;
-	struct device **jrdev; /* Alloc'ed array per sub-device */
+	struct platform_device **jrpdev; /* Alloc'ed array per sub-device */
 	struct platform_device *pdev;
 
 	/* Physical-presence section */
diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c
index 105ba4da6180..cdeaf2519b48 100644
--- a/drivers/crypto/caam/jr.c
+++ b/drivers/crypto/caam/jr.c
@@ -11,6 +11,114 @@
 #include "desc.h"
 #include "intern.h"
 
+struct jr_driver_data {
+	/* List of Physical JobR's with the Driver */
+	struct list_head	jr_list;
+	spinlock_t		jr_alloc_lock;	/* jr_list lock */
+} ____cacheline_aligned;
+
+static struct jr_driver_data driver_data;
+
+static int caam_reset_hw_jr(struct device *dev)
+{
+	struct caam_drv_private_jr *jrp = dev_get_drvdata(dev);
+	unsigned int timeout = 100000;
+
+	/*
+	 * mask interrupts since we are going to poll
+	 * for reset completion status
+	 */
+	setbits32(&jrp->rregs->rconfig_lo, JRCFG_IMSK);
+
+	/* initiate flush (required prior to reset) */
+	wr_reg32(&jrp->rregs->jrcommand, JRCR_RESET);
+	while (((rd_reg32(&jrp->rregs->jrintstatus) & JRINT_ERR_HALT_MASK) ==
+		JRINT_ERR_HALT_INPROGRESS) && --timeout)
+		cpu_relax();
+
+	if ((rd_reg32(&jrp->rregs->jrintstatus) & JRINT_ERR_HALT_MASK) !=
+	    JRINT_ERR_HALT_COMPLETE || timeout == 0) {
+		dev_err(dev, "failed to flush job ring %d\n", jrp->ridx);
+		return -EIO;
+	}
+
+	/* initiate reset */
+	timeout = 100000;
+	wr_reg32(&jrp->rregs->jrcommand, JRCR_RESET);
+	while ((rd_reg32(&jrp->rregs->jrcommand) & JRCR_RESET) && --timeout)
+		cpu_relax();
+
+	if (timeout == 0) {
+		dev_err(dev, "failed to reset job ring %d\n", jrp->ridx);
+		return -EIO;
+	}
+
+	/* unmask interrupts */
+	clrbits32(&jrp->rregs->rconfig_lo, JRCFG_IMSK);
+
+	return 0;
+}
+
+/*
+ * Shutdown JobR independent of platform property code
+ */
+int caam_jr_shutdown(struct device *dev)
+{
+	struct caam_drv_private_jr *jrp = dev_get_drvdata(dev);
+	dma_addr_t inpbusaddr, outbusaddr;
+	int ret;
+
+	ret = caam_reset_hw_jr(dev);
+
+	tasklet_kill(&jrp->irqtask);
+
+	/* Release interrupt */
+	free_irq(jrp->irq, dev);
+
+	/* Free rings */
+	inpbusaddr = rd_reg64(&jrp->rregs->inpring_base);
+	outbusaddr = rd_reg64(&jrp->rregs->outring_base);
+	dma_free_coherent(dev, sizeof(dma_addr_t) * JOBR_DEPTH,
+			  jrp->inpring, inpbusaddr);
+	dma_free_coherent(dev, sizeof(struct jr_outentry) * JOBR_DEPTH,
+			  jrp->outring, outbusaddr);
+	kfree(jrp->entinfo);
+
+	return ret;
+}
+
+static int caam_jr_remove(struct platform_device *pdev)
+{
+	int ret;
+	struct device *jrdev;
+	struct caam_drv_private_jr *jrpriv;
+
+	jrdev = &pdev->dev;
+	jrpriv = dev_get_drvdata(jrdev);
+
+	/*
+	 * Make sure ring is empty before release
+	 */
+	if (rd_reg32(&jrpriv->rregs->outring_used) ||
+	    (rd_reg32(&jrpriv->rregs->inpring_avail) != JOBR_DEPTH)) {
+		dev_err(jrdev, "Device is busy\n");
+		return -EBUSY;
+	}
+
+	/* Remove the node from Physical JobR list maintained by driver */
+	spin_lock(&driver_data.jr_alloc_lock);
+	list_del(&jrpriv->list_node);
+	spin_unlock(&driver_data.jr_alloc_lock);
+
+	/* Release ring */
+	ret = caam_jr_shutdown(jrdev);
+	if (ret)
+		dev_err(jrdev, "Failed to shut down job ring\n");
+	irq_dispose_mapping(jrpriv->irq);
+
+	return ret;
+}
+
 /* Main per-ring interrupt handler */
 static irqreturn_t caam_jr_interrupt(int irq, void *st_dev)
 {
@@ -205,46 +313,6 @@ int caam_jr_enqueue(struct device *dev, u32 *desc,
 }
 EXPORT_SYMBOL(caam_jr_enqueue);
 
-static int caam_reset_hw_jr(struct device *dev)
-{
-	struct caam_drv_private_jr *jrp = dev_get_drvdata(dev);
-	unsigned int timeout = 100000;
-
-	/*
-	 * mask interrupts since we are going to poll
-	 * for reset completion status
-	 */
-	setbits32(&jrp->rregs->rconfig_lo, JRCFG_IMSK);
-
-	/* initiate flush (required prior to reset) */
-	wr_reg32(&jrp->rregs->jrcommand, JRCR_RESET);
-	while (((rd_reg32(&jrp->rregs->jrintstatus) & JRINT_ERR_HALT_MASK) ==
-		JRINT_ERR_HALT_INPROGRESS) && --timeout)
-		cpu_relax();
-
-	if ((rd_reg32(&jrp->rregs->jrintstatus) & JRINT_ERR_HALT_MASK) !=
-	    JRINT_ERR_HALT_COMPLETE || timeout == 0) {
-		dev_err(dev, "failed to flush job ring %d\n", jrp->ridx);
-		return -EIO;
-	}
-
-	/* initiate reset */
-	timeout = 100000;
-	wr_reg32(&jrp->rregs->jrcommand, JRCR_RESET);
-	while ((rd_reg32(&jrp->rregs->jrcommand) & JRCR_RESET) && --timeout)
-		cpu_relax();
-
-	if (timeout == 0) {
-		dev_err(dev, "failed to reset job ring %d\n", jrp->ridx);
-		return -EIO;
-	}
-
-	/* unmask interrupts */
-	clrbits32(&jrp->rregs->rconfig_lo, JRCFG_IMSK);
-
-	return 0;
-}
-
 /*
  * Init JobR independent of platform property detection
  */
@@ -260,7 +328,7 @@ static int caam_jr_init(struct device *dev)
 
 	/* Connect job ring interrupt handler. */
 	error = request_irq(jrp->irq, caam_jr_interrupt, IRQF_SHARED,
-			    "caam-jobr", dev);
+			    dev_name(dev), dev);
 	if (error) {
 		dev_err(dev, "can't connect JobR %d interrupt (%d)\n",
 			jrp->ridx, jrp->irq);
@@ -316,86 +384,43 @@ static int caam_jr_init(struct device *dev)
 	return 0;
 }
 
-/*
- * Shutdown JobR independent of platform property code
- */
-int caam_jr_shutdown(struct device *dev)
-{
-	struct caam_drv_private_jr *jrp = dev_get_drvdata(dev);
-	dma_addr_t inpbusaddr, outbusaddr;
-	int ret;
-
-	ret = caam_reset_hw_jr(dev);
-
-	tasklet_kill(&jrp->irqtask);
-
-	/* Release interrupt */
-	free_irq(jrp->irq, dev);
-
-	/* Free rings */
-	inpbusaddr = rd_reg64(&jrp->rregs->inpring_base);
-	outbusaddr = rd_reg64(&jrp->rregs->outring_base);
-	dma_free_coherent(dev, sizeof(dma_addr_t) * JOBR_DEPTH,
-			  jrp->inpring, inpbusaddr);
-	dma_free_coherent(dev, sizeof(struct jr_outentry) * JOBR_DEPTH,
-			  jrp->outring, outbusaddr);
-	kfree(jrp->entinfo);
-	of_device_unregister(jrp->jr_pdev);
-
-	return ret;
-}
 
 /*
- * Probe routine for each detected JobR subsystem. It assumes that
- * property detection was picked up externally.
+ * Probe routine for each detected JobR subsystem.
  */
-int caam_jr_probe(struct platform_device *pdev, struct device_node *np,
-		  int ring)
+static int caam_jr_probe(struct platform_device *pdev)
 {
-	struct device *ctrldev, *jrdev;
-	struct platform_device *jr_pdev;
-	struct caam_drv_private *ctrlpriv;
+	struct device *jrdev;
+	struct device_node *nprop;
+	struct caam_job_ring __iomem *ctrl;
 	struct caam_drv_private_jr *jrpriv;
-	u32 *jroffset;
+	static int total_jobrs;
 	int error;
 
-	ctrldev = &pdev->dev;
-	ctrlpriv = dev_get_drvdata(ctrldev);
-
+	jrdev = &pdev->dev;
 	jrpriv = kmalloc(sizeof(struct caam_drv_private_jr),
 			 GFP_KERNEL);
-	if (jrpriv == NULL) {
-		dev_err(ctrldev, "can't alloc private mem for job ring %d\n",
-			ring);
+	if (!jrpriv)
 		return -ENOMEM;
-	}
-	jrpriv->parentdev = ctrldev; /* point back to parent */
-	jrpriv->ridx = ring; /* save ring identity relative to detection */
 
-	/*
-	 * Derive a pointer to the detected JobRs regs
-	 * Driver has already iomapped the entire space, we just
-	 * need to add in the offset to this JobR. Don't know if I
-	 * like this long-term, but it'll run
-	 */
-	jroffset = (u32 *)of_get_property(np, "reg", NULL);
-	jrpriv->rregs = (struct caam_job_ring __iomem *)((void *)ctrlpriv->ctrl
-							 + *jroffset);
+	dev_set_drvdata(jrdev, jrpriv);
 
-	/* Build a local dev for each detected queue */
-	jr_pdev = of_platform_device_create(np, NULL, ctrldev);
-	if (jr_pdev == NULL) {
-		kfree(jrpriv);
-		return -EINVAL;
+	/* save ring identity relative to detection */
+	jrpriv->ridx = total_jobrs++;
+
+	nprop = pdev->dev.of_node;
+	/* Get configuration properties from device tree */
+	/* First, get register page */
+	ctrl = of_iomap(nprop, 0);
+	if (!ctrl) {
+		dev_err(jrdev, "of_iomap() failed\n");
+		return -ENOMEM;
 	}
 
-	jrpriv->jr_pdev = jr_pdev;
-	jrdev = &jr_pdev->dev;
-	dev_set_drvdata(jrdev, jrpriv);
-	ctrlpriv->jrdev[ring] = jrdev;
+	jrpriv->rregs = (struct caam_job_ring __force *)ctrl;
 
 	if (sizeof(dma_addr_t) == sizeof(u64))
-		if (of_device_is_compatible(np, "fsl,sec-v5.0-job-ring"))
+		if (of_device_is_compatible(nprop, "fsl,sec-v5.0-job-ring"))
 			dma_set_mask(jrdev, DMA_BIT_MASK(40));
 		else
 			dma_set_mask(jrdev, DMA_BIT_MASK(36));
@@ -403,15 +428,59 @@ int caam_jr_probe(struct platform_device *pdev, struct device_node *np,
 		dma_set_mask(jrdev, DMA_BIT_MASK(32));
 
 	/* Identify the interrupt */
-	jrpriv->irq = of_irq_to_resource(np, 0, NULL);
+	jrpriv->irq = of_irq_to_resource(nprop, 0, NULL);
 
 	/* Now do the platform independent part */
 	error = caam_jr_init(jrdev); /* now turn on hardware */
 	if (error) {
-		of_device_unregister(jr_pdev);
 		kfree(jrpriv);
 		return error;
 	}
 
-	return error;
+	jrpriv->dev = jrdev;
+	spin_lock(&driver_data.jr_alloc_lock);
+	list_add_tail(&jrpriv->list_node, &driver_data.jr_list);
+	spin_unlock(&driver_data.jr_alloc_lock);
+
+	return 0;
+}
+
+static struct of_device_id caam_jr_match[] = {
+	{
+		.compatible = "fsl,sec-v4.0-job-ring",
+	},
+	{
+		.compatible = "fsl,sec4.0-job-ring",
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, caam_jr_match);
+
+static struct platform_driver caam_jr_driver = {
+	.driver = {
+		.name = "caam_jr",
+		.owner = THIS_MODULE,
+		.of_match_table = caam_jr_match,
+	},
+	.probe       = caam_jr_probe,
+	.remove      = caam_jr_remove,
+};
+
+static int __init jr_driver_init(void)
+{
+	spin_lock_init(&driver_data.jr_alloc_lock);
+	INIT_LIST_HEAD(&driver_data.jr_list);
+	return platform_driver_register(&caam_jr_driver);
 }
+
+static void __exit jr_driver_exit(void)
+{
+	platform_driver_unregister(&caam_jr_driver);
+}
+
+module_init(jr_driver_init);
+module_exit(jr_driver_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("FSL CAAM JR request backend");
+MODULE_AUTHOR("Freescale Semiconductor - NMG/STC");
diff --git a/drivers/crypto/caam/jr.h b/drivers/crypto/caam/jr.h
index 9d8741a59037..02f69bbbab08 100644
--- a/drivers/crypto/caam/jr.h
+++ b/drivers/crypto/caam/jr.h
@@ -13,7 +13,4 @@ int caam_jr_enqueue(struct device *dev, u32 *desc,
 				void *areq),
 		    void *areq);
 
-extern int caam_jr_probe(struct platform_device *pdev, struct device_node *np,
-			 int ring);
-extern int caam_jr_shutdown(struct device *dev);
 #endif /* JR_H */
-- 
cgit 


From 07defbfb0fd662272dff5207001a0a5e09aeaeec Mon Sep 17 00:00:00 2001
From: Ruchika Gupta <ruchika.gupta@freescale.com>
Date: Fri, 25 Oct 2013 12:01:02 +0530
Subject: crypto: caam - Add API's to allocate/free Job Rings

With each of the Job Ring available as a platform device, the
Job Ring driver needs to take care of allocation/deallocation
of the Job Rings to the above interface layers. Added APIs
in Job Ring Driver to allocate/free Job rings

Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Reviewed-by: Garg Vakul-B16394 <vakul@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/caam/intern.h |  3 +++
 drivers/crypto/caam/jr.c     | 60 +++++++++++++++++++++++++++++++++++++++++---
 drivers/crypto/caam/jr.h     |  2 ++
 3 files changed, 62 insertions(+), 3 deletions(-)

diff --git a/drivers/crypto/caam/intern.h b/drivers/crypto/caam/intern.h
index bff4acd3882d..b781445d2fcc 100644
--- a/drivers/crypto/caam/intern.h
+++ b/drivers/crypto/caam/intern.h
@@ -44,6 +44,9 @@ struct caam_drv_private_jr {
 	struct tasklet_struct irqtask;
 	int irq;			/* One per queue */
 
+	/* Number of scatterlist crypt transforms active on the JobR */
+	atomic_t tfm_count ____cacheline_aligned;
+
 	/* Job ring info */
 	int ringsize;	/* Size of rings (assume input = output) */
 	struct caam_jrentry_info *entinfo;	/* Alloc'ed 1 per ring entry */
diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c
index cdeaf2519b48..636bb53125ab 100644
--- a/drivers/crypto/caam/jr.c
+++ b/drivers/crypto/caam/jr.c
@@ -97,10 +97,9 @@ static int caam_jr_remove(struct platform_device *pdev)
 	jrpriv = dev_get_drvdata(jrdev);
 
 	/*
-	 * Make sure ring is empty before release
+	 * Return EBUSY if job ring already allocated.
 	 */
-	if (rd_reg32(&jrpriv->rregs->outring_used) ||
-	    (rd_reg32(&jrpriv->rregs->inpring_avail) != JOBR_DEPTH)) {
+	if (atomic_read(&jrpriv->tfm_count)) {
 		dev_err(jrdev, "Device is busy\n");
 		return -EBUSY;
 	}
@@ -233,6 +232,59 @@ static void caam_jr_dequeue(unsigned long devarg)
 	clrbits32(&jrp->rregs->rconfig_lo, JRCFG_IMSK);
 }
 
+/**
+ * caam_jr_alloc() - Alloc a job ring for someone to use as needed.
+ *
+ * returns :  pointer to the newly allocated physical
+ *	      JobR dev can be written to if successful.
+ **/
+struct device *caam_jr_alloc(void)
+{
+	struct caam_drv_private_jr *jrpriv, *min_jrpriv = NULL;
+	struct device *dev = NULL;
+	int min_tfm_cnt	= INT_MAX;
+	int tfm_cnt;
+
+	spin_lock(&driver_data.jr_alloc_lock);
+
+	if (list_empty(&driver_data.jr_list)) {
+		spin_unlock(&driver_data.jr_alloc_lock);
+		return ERR_PTR(-ENODEV);
+	}
+
+	list_for_each_entry(jrpriv, &driver_data.jr_list, list_node) {
+		tfm_cnt = atomic_read(&jrpriv->tfm_count);
+		if (tfm_cnt < min_tfm_cnt) {
+			min_tfm_cnt = tfm_cnt;
+			min_jrpriv = jrpriv;
+		}
+		if (!min_tfm_cnt)
+			break;
+	}
+
+	if (min_jrpriv) {
+		atomic_inc(&min_jrpriv->tfm_count);
+		dev = min_jrpriv->dev;
+	}
+	spin_unlock(&driver_data.jr_alloc_lock);
+
+	return dev;
+}
+EXPORT_SYMBOL(caam_jr_alloc);
+
+/**
+ * caam_jr_free() - Free the Job Ring
+ * @rdev     - points to the dev that identifies the Job ring to
+ *             be released.
+ **/
+void caam_jr_free(struct device *rdev)
+{
+	struct caam_drv_private_jr *jrpriv = dev_get_drvdata(rdev);
+
+	atomic_dec(&jrpriv->tfm_count);
+}
+EXPORT_SYMBOL(caam_jr_free);
+
 /**
  * caam_jr_enqueue() - Enqueue a job descriptor head. Returns 0 if OK,
  * -EBUSY if the queue is full, -EIO if it cannot map the caller's
@@ -442,6 +494,8 @@ static int caam_jr_probe(struct platform_device *pdev)
 	list_add_tail(&jrpriv->list_node, &driver_data.jr_list);
 	spin_unlock(&driver_data.jr_alloc_lock);
 
+	atomic_set(&jrpriv->tfm_count, 0);
+
 	return 0;
 }
 
diff --git a/drivers/crypto/caam/jr.h b/drivers/crypto/caam/jr.h
index 02f69bbbab08..97113a6d6c58 100644
--- a/drivers/crypto/caam/jr.h
+++ b/drivers/crypto/caam/jr.h
@@ -8,6 +8,8 @@
 #define JR_H
 
 /* Prototypes for backend-level services exposed to APIs */
+struct device *caam_jr_alloc(void);
+void caam_jr_free(struct device *rdev);
 int caam_jr_enqueue(struct device *dev, u32 *desc,
 		    void (*cbk)(struct device *dev, u32 *desc, u32 status,
 				void *areq),
-- 
cgit 


From cfc6f11b768a9bdda17aac280474de1f0e344fea Mon Sep 17 00:00:00 2001
From: Ruchika Gupta <ruchika.gupta@freescale.com>
Date: Fri, 25 Oct 2013 12:01:03 +0530
Subject: crypto: caam - Modify the interface layers to use JR API's

- Earlier interface layers - caamalg, caamhash, caamrng were
  directly using the Controller driver private structure to access
  the Job ring.
- Changed the above to use alloc/free API's provided by Job Ring Drive

Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Reviewed-by: Garg Vakul-B16394 <vakul@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/caam/caamalg.c  | 92 +++++++++------------------------------
 drivers/crypto/caam/caamhash.c | 97 +++++++++++-------------------------------
 drivers/crypto/caam/caamrng.c  | 37 ++++------------
 drivers/crypto/caam/intern.h   |  7 ---
 4 files changed, 55 insertions(+), 178 deletions(-)

diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index ad9781e646c0..4f44b71b9e24 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -86,6 +86,7 @@
 #else
 #define debug(format, arg...)
 #endif
+static struct list_head alg_list;
 
 /* Set DK bit in class 1 operation if shared */
 static inline void append_dec_op1(u32 *desc, u32 type)
@@ -2057,7 +2058,6 @@ static struct caam_alg_template driver_algs[] = {
 
 struct caam_crypto_alg {
 	struct list_head entry;
-	struct device *ctrldev;
 	int class1_alg_type;
 	int class2_alg_type;
 	int alg_op;
@@ -2070,16 +2070,12 @@ static int caam_cra_init(struct crypto_tfm *tfm)
 	struct caam_crypto_alg *caam_alg =
 		 container_of(alg, struct caam_crypto_alg, crypto_alg);
 	struct caam_ctx *ctx = crypto_tfm_ctx(tfm);
-	struct caam_drv_private *priv = dev_get_drvdata(caam_alg->ctrldev);
-	struct platform_device *pdev;
-	int tgt_jr = atomic_inc_return(&priv->tfm_count);
 
-	/*
-	 * distribute tfms across job rings to ensure in-order
-	 * crypto request processing per tfm
-	 */
-	pdev = priv->jrpdev[(tgt_jr / 2) % priv->total_jobrs];
-	ctx->jrdev = &pdev->dev;
+	ctx->jrdev = caam_jr_alloc();
+	if (IS_ERR(ctx->jrdev)) {
+		pr_err("Job Ring Device allocation for transform failed\n");
+		return PTR_ERR(ctx->jrdev);
+	}
 
 	/* copy descriptor header template value */
 	ctx->class1_alg_type = OP_TYPE_CLASS1_ALG | caam_alg->class1_alg_type;
@@ -2106,44 +2102,26 @@ static void caam_cra_exit(struct crypto_tfm *tfm)
 		dma_unmap_single(ctx->jrdev, ctx->sh_desc_givenc_dma,
 				 desc_bytes(ctx->sh_desc_givenc),
 				 DMA_TO_DEVICE);
+
+	caam_jr_free(ctx->jrdev);
 }
 
 static void __exit caam_algapi_exit(void)
 {
 
-	struct device_node *dev_node;
-	struct platform_device *pdev;
-	struct device *ctrldev;
-	struct caam_drv_private *priv;
 	struct caam_crypto_alg *t_alg, *n;
 
-	dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0");
-	if (!dev_node) {
-		dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec4.0");
-		if (!dev_node)
-			return;
-	}
-
-	pdev = of_find_device_by_node(dev_node);
-	if (!pdev)
-		return;
-
-	ctrldev = &pdev->dev;
-	of_node_put(dev_node);
-	priv = dev_get_drvdata(ctrldev);
-
-	if (!priv->alg_list.next)
+	if (!alg_list.next)
 		return;
 
-	list_for_each_entry_safe(t_alg, n, &priv->alg_list, entry) {
+	list_for_each_entry_safe(t_alg, n, &alg_list, entry) {
 		crypto_unregister_alg(&t_alg->crypto_alg);
 		list_del(&t_alg->entry);
 		kfree(t_alg);
 	}
 }
 
-static struct caam_crypto_alg *caam_alg_alloc(struct device *ctrldev,
-					      struct caam_alg_template
+static struct caam_crypto_alg *caam_alg_alloc(struct caam_alg_template
 					      *template)
 {
 	struct caam_crypto_alg *t_alg;
@@ -2151,7 +2129,7 @@ static struct caam_crypto_alg *caam_alg_alloc(struct device *ctrldev,
 
 	t_alg = kzalloc(sizeof(struct caam_crypto_alg), GFP_KERNEL);
 	if (!t_alg) {
-		dev_err(ctrldev, "failed to allocate t_alg\n");
+		pr_err("failed to allocate t_alg\n");
 		return ERR_PTR(-ENOMEM);
 	}
 
@@ -2183,69 +2161,39 @@ static struct caam_crypto_alg *caam_alg_alloc(struct device *ctrldev,
 	t_alg->class1_alg_type = template->class1_alg_type;
 	t_alg->class2_alg_type = template->class2_alg_type;
 	t_alg->alg_op = template->alg_op;
-	t_alg->ctrldev = ctrldev;
 
 	return t_alg;
 }
 
 static int __init caam_algapi_init(void)
 {
-	struct device_node *dev_node;
-	struct platform_device *pdev;
-	struct device *ctrldev;
-	struct caam_drv_private *priv;
 	int i = 0, err = 0;
 
-	dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0");
-	if (!dev_node) {
-		dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec4.0");
-		if (!dev_node)
-			return -ENODEV;
-	}
-
-	pdev = of_find_device_by_node(dev_node);
-	if (!pdev)
-		return -ENODEV;
-
-	ctrldev = &pdev->dev;
-	priv = dev_get_drvdata(ctrldev);
-	of_node_put(dev_node);
-
-	/*
-	 * If priv is NULL, it's probably because the caam driver wasn't
-	 * properly initialized (e.g. RNG4 init failed). Thus, bail out here.
-	 */
-	if (!priv)
-		return -ENODEV;
-
-	INIT_LIST_HEAD(&priv->alg_list);
-
-	atomic_set(&priv->tfm_count, -1);
+	INIT_LIST_HEAD(&alg_list);
 
 	/* register crypto algorithms the device supports */
 	for (i = 0; i < ARRAY_SIZE(driver_algs); i++) {
 		/* TODO: check if h/w supports alg */
 		struct caam_crypto_alg *t_alg;
 
-		t_alg = caam_alg_alloc(ctrldev, &driver_algs[i]);
+		t_alg = caam_alg_alloc(&driver_algs[i]);
 		if (IS_ERR(t_alg)) {
 			err = PTR_ERR(t_alg);
-			dev_warn(ctrldev, "%s alg allocation failed\n",
-				 driver_algs[i].driver_name);
+			pr_warn("%s alg allocation failed\n",
+				driver_algs[i].driver_name);
 			continue;
 		}
 
 		err = crypto_register_alg(&t_alg->crypto_alg);
 		if (err) {
-			dev_warn(ctrldev, "%s alg registration failed\n",
+			pr_warn("%s alg registration failed\n",
 				t_alg->crypto_alg.cra_driver_name);
 			kfree(t_alg);
 		} else
-			list_add_tail(&t_alg->entry, &priv->alg_list);
+			list_add_tail(&t_alg->entry, &alg_list);
 	}
-	if (!list_empty(&priv->alg_list))
-		dev_info(ctrldev, "%s algorithms registered in /proc/crypto\n",
-			 (char *)of_get_property(dev_node, "compatible", NULL));
+	if (!list_empty(&alg_list))
+		pr_info("caam algorithms registered in /proc/crypto\n");
 
 	return err;
 }
diff --git a/drivers/crypto/caam/caamhash.c b/drivers/crypto/caam/caamhash.c
index 91a93541ed7f..0378328f47a7 100644
--- a/drivers/crypto/caam/caamhash.c
+++ b/drivers/crypto/caam/caamhash.c
@@ -94,6 +94,9 @@
 #define debug(format, arg...)
 #endif
 
+
+static struct list_head hash_list;
+
 /* ahash per-session context */
 struct caam_hash_ctx {
 	struct device *jrdev;
@@ -1653,7 +1656,6 @@ static struct caam_hash_template driver_hash[] = {
 
 struct caam_hash_alg {
 	struct list_head entry;
-	struct device *ctrldev;
 	int alg_type;
 	int alg_op;
 	struct ahash_alg ahash_alg;
@@ -1670,7 +1672,6 @@ static int caam_hash_cra_init(struct crypto_tfm *tfm)
 	struct caam_hash_alg *caam_hash =
 		 container_of(alg, struct caam_hash_alg, ahash_alg);
 	struct caam_hash_ctx *ctx = crypto_tfm_ctx(tfm);
-	struct caam_drv_private *priv = dev_get_drvdata(caam_hash->ctrldev);
 	/* Sizes for MDHA running digests: MD5, SHA1, 224, 256, 384, 512 */
 	static const u8 runninglen[] = { HASH_MSG_LEN + MD5_DIGEST_SIZE,
 					 HASH_MSG_LEN + SHA1_DIGEST_SIZE,
@@ -1678,17 +1679,17 @@ static int caam_hash_cra_init(struct crypto_tfm *tfm)
 					 HASH_MSG_LEN + SHA256_DIGEST_SIZE,
 					 HASH_MSG_LEN + 64,
 					 HASH_MSG_LEN + SHA512_DIGEST_SIZE };
-	int tgt_jr = atomic_inc_return(&priv->tfm_count);
 	int ret = 0;
-	struct platform_device *pdev;
 
 	/*
-	 * distribute tfms across job rings to ensure in-order
+	 * Get a Job ring from Job Ring driver to ensure in-order
 	 * crypto request processing per tfm
 	 */
-	pdev = priv->jrpdev[tgt_jr % priv->total_jobrs];
-	ctx->jrdev = &pdev->dev;
-
+	ctx->jrdev = caam_jr_alloc();
+	if (IS_ERR(ctx->jrdev)) {
+		pr_err("Job Ring Device allocation for transform failed\n");
+		return PTR_ERR(ctx->jrdev);
+	}
 	/* copy descriptor header template value */
 	ctx->alg_type = OP_TYPE_CLASS2_ALG | caam_hash->alg_type;
 	ctx->alg_op = OP_TYPE_CLASS2_ALG | caam_hash->alg_op;
@@ -1731,35 +1732,18 @@ static void caam_hash_cra_exit(struct crypto_tfm *tfm)
 	    !dma_mapping_error(ctx->jrdev, ctx->sh_desc_finup_dma))
 		dma_unmap_single(ctx->jrdev, ctx->sh_desc_finup_dma,
 				 desc_bytes(ctx->sh_desc_finup), DMA_TO_DEVICE);
+
+	caam_jr_free(ctx->jrdev);
 }
 
 static void __exit caam_algapi_hash_exit(void)
 {
-	struct device_node *dev_node;
-	struct platform_device *pdev;
-	struct device *ctrldev;
-	struct caam_drv_private *priv;
 	struct caam_hash_alg *t_alg, *n;
 
-	dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0");
-	if (!dev_node) {
-		dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec4.0");
-		if (!dev_node)
-			return;
-	}
-
-	pdev = of_find_device_by_node(dev_node);
-	if (!pdev)
-		return;
-
-	ctrldev = &pdev->dev;
-	of_node_put(dev_node);
-	priv = dev_get_drvdata(ctrldev);
-
-	if (!priv->hash_list.next)
+	if (!hash_list.next)
 		return;
 
-	list_for_each_entry_safe(t_alg, n, &priv->hash_list, entry) {
+	list_for_each_entry_safe(t_alg, n, &hash_list, entry) {
 		crypto_unregister_ahash(&t_alg->ahash_alg);
 		list_del(&t_alg->entry);
 		kfree(t_alg);
@@ -1767,7 +1751,7 @@ static void __exit caam_algapi_hash_exit(void)
 }
 
 static struct caam_hash_alg *
-caam_hash_alloc(struct device *ctrldev, struct caam_hash_template *template,
+caam_hash_alloc(struct caam_hash_template *template,
 		bool keyed)
 {
 	struct caam_hash_alg *t_alg;
@@ -1776,7 +1760,7 @@ caam_hash_alloc(struct device *ctrldev, struct caam_hash_template *template,
 
 	t_alg = kzalloc(sizeof(struct caam_hash_alg), GFP_KERNEL);
 	if (!t_alg) {
-		dev_err(ctrldev, "failed to allocate t_alg\n");
+		pr_err("failed to allocate t_alg\n");
 		return ERR_PTR(-ENOMEM);
 	}
 
@@ -1807,44 +1791,15 @@ caam_hash_alloc(struct device *ctrldev, struct caam_hash_template *template,
 
 	t_alg->alg_type = template->alg_type;
 	t_alg->alg_op = template->alg_op;
-	t_alg->ctrldev = ctrldev;
 
 	return t_alg;
 }
 
 static int __init caam_algapi_hash_init(void)
 {
-	struct device_node *dev_node;
-	struct platform_device *pdev;
-	struct device *ctrldev;
-	struct caam_drv_private *priv;
 	int i = 0, err = 0;
 
-	dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0");
-	if (!dev_node) {
-		dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec4.0");
-		if (!dev_node)
-			return -ENODEV;
-	}
-
-	pdev = of_find_device_by_node(dev_node);
-	if (!pdev)
-		return -ENODEV;
-
-	ctrldev = &pdev->dev;
-	priv = dev_get_drvdata(ctrldev);
-	of_node_put(dev_node);
-
-	/*
-	 * If priv is NULL, it's probably because the caam driver wasn't
-	 * properly initialized (e.g. RNG4 init failed). Thus, bail out here.
-	 */
-	if (!priv)
-		return -ENODEV;
-
-	INIT_LIST_HEAD(&priv->hash_list);
-
-	atomic_set(&priv->tfm_count, -1);
+	INIT_LIST_HEAD(&hash_list);
 
 	/* register crypto algorithms the device supports */
 	for (i = 0; i < ARRAY_SIZE(driver_hash); i++) {
@@ -1852,38 +1807,38 @@ static int __init caam_algapi_hash_init(void)
 		struct caam_hash_alg *t_alg;
 
 		/* register hmac version */
-		t_alg = caam_hash_alloc(ctrldev, &driver_hash[i], true);
+		t_alg = caam_hash_alloc(&driver_hash[i], true);
 		if (IS_ERR(t_alg)) {
 			err = PTR_ERR(t_alg);
-			dev_warn(ctrldev, "%s alg allocation failed\n",
-				 driver_hash[i].driver_name);
+			pr_warn("%s alg allocation failed\n",
+				driver_hash[i].driver_name);
 			continue;
 		}
 
 		err = crypto_register_ahash(&t_alg->ahash_alg);
 		if (err) {
-			dev_warn(ctrldev, "%s alg registration failed\n",
+			pr_warn("%s alg registration failed\n",
 				t_alg->ahash_alg.halg.base.cra_driver_name);
 			kfree(t_alg);
 		} else
-			list_add_tail(&t_alg->entry, &priv->hash_list);
+			list_add_tail(&t_alg->entry, &hash_list);
 
 		/* register unkeyed version */
-		t_alg = caam_hash_alloc(ctrldev, &driver_hash[i], false);
+		t_alg = caam_hash_alloc(&driver_hash[i], false);
 		if (IS_ERR(t_alg)) {
 			err = PTR_ERR(t_alg);
-			dev_warn(ctrldev, "%s alg allocation failed\n",
-				 driver_hash[i].driver_name);
+			pr_warn("%s alg allocation failed\n",
+				driver_hash[i].driver_name);
 			continue;
 		}
 
 		err = crypto_register_ahash(&t_alg->ahash_alg);
 		if (err) {
-			dev_warn(ctrldev, "%s alg registration failed\n",
+			pr_warn("%s alg registration failed\n",
 				t_alg->ahash_alg.halg.base.cra_driver_name);
 			kfree(t_alg);
 		} else
-			list_add_tail(&t_alg->entry, &priv->hash_list);
+			list_add_tail(&t_alg->entry, &hash_list);
 	}
 
 	return err;
diff --git a/drivers/crypto/caam/caamrng.c b/drivers/crypto/caam/caamrng.c
index 4e4ed155c5be..28486b19fc36 100644
--- a/drivers/crypto/caam/caamrng.c
+++ b/drivers/crypto/caam/caamrng.c
@@ -273,42 +273,23 @@ static struct hwrng caam_rng = {
 
 static void __exit caam_rng_exit(void)
 {
+	caam_jr_free(rng_ctx.jrdev);
 	hwrng_unregister(&caam_rng);
 }
 
 static int __init caam_rng_init(void)
 {
-	struct device_node *dev_node;
-	struct platform_device *pdev, *jrpdev;
-	struct device *ctrldev;
-	struct caam_drv_private *priv;
-
-	dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec-v4.0");
-	if (!dev_node) {
-		dev_node = of_find_compatible_node(NULL, NULL, "fsl,sec4.0");
-		if (!dev_node)
-			return -ENODEV;
-	}
-
-	pdev = of_find_device_by_node(dev_node);
-	if (!pdev)
-		return -ENODEV;
+	struct device *dev;
 
-	ctrldev = &pdev->dev;
-	priv = dev_get_drvdata(ctrldev);
-	of_node_put(dev_node);
-
-	/*
-	 * If priv is NULL, it's probably because the caam driver wasn't
-	 * properly initialized (e.g. RNG4 init failed). Thus, bail out here.
-	 */
-	if (!priv)
-		return -ENODEV;
+	dev = caam_jr_alloc();
+	if (IS_ERR(dev)) {
+		pr_err("Job Ring Device allocation for transform failed\n");
+		return PTR_ERR(dev);
+	}
 
-	jrpdev = priv->jrpdev[0];
-	caam_init_rng(&rng_ctx, &jrpdev->dev);
+	caam_init_rng(&rng_ctx, dev);
 
-	dev_info(&jrpdev->dev, "registering rng-caam\n");
+	dev_info(dev, "registering rng-caam\n");
 	return hwrng_register(&caam_rng);
 }
 
diff --git a/drivers/crypto/caam/intern.h b/drivers/crypto/caam/intern.h
index b781445d2fcc..6d85fcc5bd0a 100644
--- a/drivers/crypto/caam/intern.h
+++ b/drivers/crypto/caam/intern.h
@@ -83,13 +83,6 @@ struct caam_drv_private {
 	u8 qi_present;		/* Nonzero if QI present in device */
 	int secvio_irq;		/* Security violation interrupt number */
 
-	/* which jr allocated to scatterlist crypto */
-	atomic_t tfm_count ____cacheline_aligned;
-	/* list of registered crypto algorithms (mk generic context handle?) */
-	struct list_head alg_list;
-	/* list of registered hash algorithms (mk generic context handle?) */
-	struct list_head hash_list;
-
 #define	RNG4_MAX_HANDLES 2
 	/* RNG4 block */
 	u32 rng4_sh_init;	/* This bitmap shows which of the State
-- 
cgit 


From 0b6b098efcddac2bf4e2a895c9b655560bbfcee4 Mon Sep 17 00:00:00 2001
From: Mathias Krause <mathias.krause@secunet.com>
Date: Fri, 25 Oct 2013 12:14:15 +0200
Subject: padata: make the sequence counter an atomic_t

Using a spinlock to atomically increase a counter sounds wrong -- we've
atomic_t for this!

Also move 'seq_nr' to a different cache line than 'lock' to reduce cache
line trashing. This has the nice side effect of decreasing the size of
struct parallel_data from 192 to 128 bytes for a x86-64 build, e.g.
occupying only two instead of three cache lines.

Those changes results in a 5% performance increase on an IPsec test run
using pcrypt.

Btw. the seq_lock spinlock was never explicitly initialized -- one more
reason to get rid of it.

Signed-off-by: Mathias Krause <mathias.krause@secunet.com>
Acked-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 include/linux/padata.h | 3 +--
 kernel/padata.c        | 9 ++++-----
 2 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/include/linux/padata.h b/include/linux/padata.h
index 86292beebfe2..438694650471 100644
--- a/include/linux/padata.h
+++ b/include/linux/padata.h
@@ -129,10 +129,9 @@ struct parallel_data {
 	struct padata_serial_queue	__percpu *squeue;
 	atomic_t			reorder_objects;
 	atomic_t			refcnt;
+	atomic_t			seq_nr;
 	struct padata_cpumask		cpumask;
 	spinlock_t                      lock ____cacheline_aligned;
-	spinlock_t                      seq_lock;
-	unsigned int			seq_nr;
 	unsigned int			processed;
 	struct timer_list		timer;
 };
diff --git a/kernel/padata.c b/kernel/padata.c
index 07af2c95dcfe..2abd25d79cc8 100644
--- a/kernel/padata.c
+++ b/kernel/padata.c
@@ -46,6 +46,7 @@ static int padata_index_to_cpu(struct parallel_data *pd, int cpu_index)
 
 static int padata_cpu_hash(struct parallel_data *pd)
 {
+	unsigned int seq_nr;
 	int cpu_index;
 
 	/*
@@ -53,10 +54,8 @@ static int padata_cpu_hash(struct parallel_data *pd)
 	 * seq_nr mod. number of cpus in use.
 	 */
 
-	spin_lock(&pd->seq_lock);
-	cpu_index =  pd->seq_nr % cpumask_weight(pd->cpumask.pcpu);
-	pd->seq_nr++;
-	spin_unlock(&pd->seq_lock);
+	seq_nr = atomic_inc_return(&pd->seq_nr);
+	cpu_index = seq_nr % cpumask_weight(pd->cpumask.pcpu);
 
 	return padata_index_to_cpu(pd, cpu_index);
 }
@@ -429,7 +428,7 @@ static struct parallel_data *padata_alloc_pd(struct padata_instance *pinst,
 	padata_init_pqueues(pd);
 	padata_init_squeues(pd);
 	setup_timer(&pd->timer, padata_reorder_timer, (unsigned long)pd);
-	pd->seq_nr = 0;
+	atomic_set(&pd->seq_nr, -1);
 	atomic_set(&pd->reorder_objects, 0);
 	atomic_set(&pd->refcnt, 0);
 	pd->pinst = pinst;
-- 
cgit 


From 718249d7f0657a5edec0131afbfb0d28fbf03e46 Mon Sep 17 00:00:00 2001
From: Joni Lapilainen <joni.lapilainen@gmail.com>
Date: Sat, 26 Oct 2013 23:00:41 +0200
Subject: crypto: omap-sham - Add missing modalias

Signed-off-by: Joni Lapilainen <joni.lapilainen@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/omap-sham.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/crypto/omap-sham.c b/drivers/crypto/omap-sham.c
index 8bdde57f6bb1..236db0a44105 100644
--- a/drivers/crypto/omap-sham.c
+++ b/drivers/crypto/omap-sham.c
@@ -2033,3 +2033,4 @@ module_platform_driver(omap_sham_driver);
 MODULE_DESCRIPTION("OMAP SHA1/MD5 hw acceleration support.");
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Dmitry Kasatkin");
+MODULE_ALIAS("platform:omap-sham");
-- 
cgit 


From 8ed49c7675e106bc23f34ac065d8add75e0e2f45 Mon Sep 17 00:00:00 2001
From: Joel Fernandes <joelf@ti.com>
Date: Tue, 29 Oct 2013 17:37:38 -0500
Subject: crypto: omap-aes - Fix CTR mode counter length

NIST vectors for CTR mode in testmgr.h assume the entire IV as the counter. To
get correct results that match the output of these vectors, we need to set the
counter length correctly.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/omap-aes.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c
index e1e58d0ed550..a9ccbf14096e 100644
--- a/drivers/crypto/omap-aes.c
+++ b/drivers/crypto/omap-aes.c
@@ -275,7 +275,7 @@ static int omap_aes_write_ctrl(struct omap_aes_dev *dd)
 	if (dd->flags & FLAGS_CBC)
 		val |= AES_REG_CTRL_CBC;
 	if (dd->flags & FLAGS_CTR) {
-		val |= AES_REG_CTRL_CTR | AES_REG_CTRL_CTR_WIDTH_32;
+		val |= AES_REG_CTRL_CTR | AES_REG_CTRL_CTR_WIDTH_128;
 		mask = AES_REG_CTRL_CTR | AES_REG_CTRL_CTR_WIDTH_MASK;
 	}
 	if (dd->flags & FLAGS_ENCRYPT)
-- 
cgit 


From dd0c6e86f66080869ca0a48c78fb9bfbe4cf156f Mon Sep 17 00:00:00 2001
From: John Johansen <john.johansen@canonical.com>
Date: Tue, 8 Oct 2013 05:37:18 -0700
Subject: apparmor: fix capability to not use the current task, during
 reporting

Mediation is based off of the cred but auditing includes the current
task which may not be related to the actual request.

Signed-off-by: John Johansen <john.johansen@canonical.com>
---
 security/apparmor/capability.c         | 15 +++++----------
 security/apparmor/domain.c             |  2 +-
 security/apparmor/include/capability.h |  5 ++---
 security/apparmor/include/ipc.h        |  4 ++--
 security/apparmor/ipc.c                |  9 ++++-----
 security/apparmor/lsm.c                |  2 +-
 6 files changed, 15 insertions(+), 22 deletions(-)

diff --git a/security/apparmor/capability.c b/security/apparmor/capability.c
index 84d1f5f53877..1101c6f64bb7 100644
--- a/security/apparmor/capability.c
+++ b/security/apparmor/capability.c
@@ -53,8 +53,7 @@ static void audit_cb(struct audit_buffer *ab, void *va)
 
 /**
  * audit_caps - audit a capability
- * @profile: profile confining task (NOT NULL)
- * @task: task capability test was performed against (NOT NULL)
+ * @profile: profile being tested for confinement (NOT NULL)
  * @cap: capability tested
  * @error: error code returned by test
  *
@@ -63,8 +62,7 @@ static void audit_cb(struct audit_buffer *ab, void *va)
  *
  * Returns: 0 or sa->error on success,  error code on failure
  */
-static int audit_caps(struct aa_profile *profile, struct task_struct *task,
-		      int cap, int error)
+static int audit_caps(struct aa_profile *profile, int cap, int error)
 {
 	struct audit_cache *ent;
 	int type = AUDIT_APPARMOR_AUTO;
@@ -73,7 +71,6 @@ static int audit_caps(struct aa_profile *profile, struct task_struct *task,
 	sa.type = LSM_AUDIT_DATA_CAP;
 	sa.aad = &aad;
 	sa.u.cap = cap;
-	sa.aad->tsk = task;
 	sa.aad->op = OP_CAPABLE;
 	sa.aad->error = error;
 
@@ -124,8 +121,7 @@ static int profile_capable(struct aa_profile *profile, int cap)
 
 /**
  * aa_capable - test permission to use capability
- * @task: task doing capability test against (NOT NULL)
- * @profile: profile confining @task (NOT NULL)
+ * @profile: profile being tested against (NOT NULL)
  * @cap: capability to be tested
  * @audit: whether an audit record should be generated
  *
@@ -133,8 +129,7 @@ static int profile_capable(struct aa_profile *profile, int cap)
  *
  * Returns: 0 on success, or else an error code.
  */
-int aa_capable(struct task_struct *task, struct aa_profile *profile, int cap,
-	       int audit)
+int aa_capable(struct aa_profile *profile, int cap, int audit)
 {
 	int error = profile_capable(profile, cap);
 
@@ -144,5 +139,5 @@ int aa_capable(struct task_struct *task, struct aa_profile *profile, int cap,
 		return error;
 	}
 
-	return audit_caps(profile, task, cap, error);
+	return audit_caps(profile, cap, error);
 }
diff --git a/security/apparmor/domain.c b/security/apparmor/domain.c
index 26c607c971f5..e5538a12d162 100644
--- a/security/apparmor/domain.c
+++ b/security/apparmor/domain.c
@@ -75,7 +75,7 @@ static int may_change_ptraced_domain(struct task_struct *task,
 	if (!tracer || unconfined(tracerp))
 		goto out;
 
-	error = aa_may_ptrace(tracer, tracerp, to_profile, PTRACE_MODE_ATTACH);
+	error = aa_may_ptrace(tracerp, to_profile, PTRACE_MODE_ATTACH);
 
 out:
 	rcu_read_unlock();
diff --git a/security/apparmor/include/capability.h b/security/apparmor/include/capability.h
index 2e7c9d6a2f3b..fc3fa381d850 100644
--- a/security/apparmor/include/capability.h
+++ b/security/apparmor/include/capability.h
@@ -4,7 +4,7 @@
  * This file contains AppArmor capability mediation definitions.
  *
  * Copyright (C) 1998-2008 Novell/SUSE
- * Copyright 2009-2010 Canonical Ltd.
+ * Copyright 2009-2013 Canonical Ltd.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -38,8 +38,7 @@ struct aa_caps {
 
 extern struct aa_fs_entry aa_fs_entry_caps[];
 
-int aa_capable(struct task_struct *task, struct aa_profile *profile, int cap,
-	       int audit);
+int aa_capable(struct aa_profile *profile, int cap, int audit);
 
 static inline void aa_free_cap_rules(struct aa_caps *caps)
 {
diff --git a/security/apparmor/include/ipc.h b/security/apparmor/include/ipc.h
index aeda0fbc8b2f..288ca76e2fb1 100644
--- a/security/apparmor/include/ipc.h
+++ b/security/apparmor/include/ipc.h
@@ -19,8 +19,8 @@
 
 struct aa_profile;
 
-int aa_may_ptrace(struct task_struct *tracer_task, struct aa_profile *tracer,
-		  struct aa_profile *tracee, unsigned int mode);
+int aa_may_ptrace(struct aa_profile *tracer, struct aa_profile *tracee,
+		  unsigned int mode);
 
 int aa_ptrace(struct task_struct *tracer, struct task_struct *tracee,
 	      unsigned int mode);
diff --git a/security/apparmor/ipc.c b/security/apparmor/ipc.c
index c51d2266587e..777ac1c47253 100644
--- a/security/apparmor/ipc.c
+++ b/security/apparmor/ipc.c
@@ -54,15 +54,14 @@ static int aa_audit_ptrace(struct aa_profile *profile,
 
 /**
  * aa_may_ptrace - test if tracer task can trace the tracee
- * @tracer_task: task who will do the tracing  (NOT NULL)
  * @tracer: profile of the task doing the tracing  (NOT NULL)
  * @tracee: task to be traced
  * @mode: whether PTRACE_MODE_READ || PTRACE_MODE_ATTACH
  *
  * Returns: %0 else error code if permission denied or error
  */
-int aa_may_ptrace(struct task_struct *tracer_task, struct aa_profile *tracer,
-		  struct aa_profile *tracee, unsigned int mode)
+int aa_may_ptrace(struct aa_profile *tracer, struct aa_profile *tracee,
+		  unsigned int mode)
 {
 	/* TODO: currently only based on capability, not extended ptrace
 	 *       rules,
@@ -72,7 +71,7 @@ int aa_may_ptrace(struct task_struct *tracer_task, struct aa_profile *tracer,
 	if (unconfined(tracer) || tracer == tracee)
 		return 0;
 	/* log this capability request */
-	return aa_capable(tracer_task, tracer, CAP_SYS_PTRACE, 1);
+	return aa_capable(tracer, CAP_SYS_PTRACE, 1);
 }
 
 /**
@@ -101,7 +100,7 @@ int aa_ptrace(struct task_struct *tracer, struct task_struct *tracee,
 	if (!unconfined(tracer_p)) {
 		struct aa_profile *tracee_p = aa_get_task_profile(tracee);
 
-		error = aa_may_ptrace(tracer, tracer_p, tracee_p, mode);
+		error = aa_may_ptrace(tracer_p, tracee_p, mode);
 		error = aa_audit_ptrace(tracer_p, tracee_p, error);
 
 		aa_put_profile(tracee_p);
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index fb99e18123b4..4257b7e2796b 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -145,7 +145,7 @@ static int apparmor_capable(const struct cred *cred, struct user_namespace *ns,
 	if (!error) {
 		profile = aa_cred_profile(cred);
 		if (!unconfined(profile))
-			error = aa_capable(current, profile, cap, audit);
+			error = aa_capable(profile, cap, audit);
 	}
 	return error;
 }
-- 
cgit 


From 61e3fb8acaea0ca4303ef123bae7edf8435dc2b7 Mon Sep 17 00:00:00 2001
From: John Johansen <john.johansen@canonical.com>
Date: Tue, 8 Oct 2013 05:37:26 -0700
Subject: apparmor: remove tsk field from the apparmor_audit_struct

Now that aa_capabile no longer sets the task field it can be removed
and the lsm_audit version of the field can be used.

Signed-off-by: John Johansen <john.johansen@canonical.com>
---
 security/apparmor/audit.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/security/apparmor/audit.c b/security/apparmor/audit.c
index 031d2d9dd695..e32c4483fba1 100644
--- a/security/apparmor/audit.c
+++ b/security/apparmor/audit.c
@@ -111,7 +111,7 @@ static const char *const aa_audit_type[] = {
 static void audit_pre(struct audit_buffer *ab, void *ca)
 {
 	struct common_audit_data *sa = ca;
-	struct task_struct *tsk = sa->aad->tsk ? sa->aad->tsk : current;
+	struct task_struct *tsk = sa->u.tsk ? sa->u.tsk : current;
 
 	if (aa_g_audit_header) {
 		audit_log_format(ab, "apparmor=");
@@ -149,12 +149,6 @@ static void audit_pre(struct audit_buffer *ab, void *ca)
 		audit_log_format(ab, " name=");
 		audit_log_untrustedstring(ab, sa->aad->name);
 	}
-
-	if (sa->aad->tsk) {
-		audit_log_format(ab, " pid=%d comm=", tsk->pid);
-		audit_log_untrustedstring(ab, tsk->comm);
-	}
-
 }
 
 /**
@@ -212,7 +206,7 @@ int aa_audit(int type, struct aa_profile *profile, gfp_t gfp,
 
 	if (sa->aad->type == AUDIT_APPARMOR_KILL)
 		(void)send_sig_info(SIGKILL, NULL,
-				    sa->aad->tsk ?  sa->aad->tsk : current);
+				    sa->u.tsk ?  sa->u.tsk : current);
 
 	if (sa->aad->type == AUDIT_APPARMOR_ALLOWED)
 		return complain_error(sa->aad->error);
-- 
cgit 


From 4a7fc3018f05f4305723b508b12f3be13b7c4875 Mon Sep 17 00:00:00 2001
From: John Johansen <john.johansen@canonical.com>
Date: Tue, 8 Oct 2013 05:39:02 -0700
Subject: apparmor: remove parent task info from audit logging

The reporting of the parent task info is a vestage from old versions of
apparmor. The need for this information was removed by unique null-
profiles before apparmor was upstreamed so remove this info from logging.

Signed-off-by: John Johansen <john.johansen@canonical.com>
---
 security/apparmor/audit.c         | 6 ------
 security/apparmor/include/audit.h | 1 -
 2 files changed, 7 deletions(-)

diff --git a/security/apparmor/audit.c b/security/apparmor/audit.c
index e32c4483fba1..89c78658031f 100644
--- a/security/apparmor/audit.c
+++ b/security/apparmor/audit.c
@@ -111,7 +111,6 @@ static const char *const aa_audit_type[] = {
 static void audit_pre(struct audit_buffer *ab, void *ca)
 {
 	struct common_audit_data *sa = ca;
-	struct task_struct *tsk = sa->u.tsk ? sa->u.tsk : current;
 
 	if (aa_g_audit_header) {
 		audit_log_format(ab, "apparmor=");
@@ -132,11 +131,6 @@ static void audit_pre(struct audit_buffer *ab, void *ca)
 
 	if (sa->aad->profile) {
 		struct aa_profile *profile = sa->aad->profile;
-		pid_t pid;
-		rcu_read_lock();
-		pid = rcu_dereference(tsk->real_parent)->pid;
-		rcu_read_unlock();
-		audit_log_format(ab, " parent=%d", pid);
 		if (profile->ns != root_ns) {
 			audit_log_format(ab, " namespace=");
 			audit_log_untrustedstring(ab, profile->ns->base.hname);
diff --git a/security/apparmor/include/audit.h b/security/apparmor/include/audit.h
index 30e8d7687259..ba3dfd17f23f 100644
--- a/security/apparmor/include/audit.h
+++ b/security/apparmor/include/audit.h
@@ -109,7 +109,6 @@ struct apparmor_audit_data {
 	void *profile;
 	const char *name;
 	const char *info;
-	struct task_struct *tsk;
 	union {
 		void *target;
 		struct {
-- 
cgit 


From 51775fe736f053329faf0f5de7c679ee4cb0023d Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Tue, 8 Oct 2013 05:46:03 -0700
Subject: apparmor: remove the "task" arg from may_change_ptraced_domain()

Unless task == current ptrace_parent(task) is not safe even under
rcu_read_lock() and most of the current users are not right.

So may_change_ptraced_domain(task) looks wrong as well. However it
is always called with task == current so the code is actually fine.
Remove this argument to make this fact clear.

Note: perhaps we should simply kill ptrace_parent(), it buys almost
nothing. And it is obviously racy, perhaps this should be fixed.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
---
 security/apparmor/domain.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/security/apparmor/domain.c b/security/apparmor/domain.c
index e5538a12d162..452567d3a08e 100644
--- a/security/apparmor/domain.c
+++ b/security/apparmor/domain.c
@@ -50,23 +50,21 @@ void aa_free_domain_entries(struct aa_domain *domain)
 
 /**
  * may_change_ptraced_domain - check if can change profile on ptraced task
- * @task: task we want to change profile of   (NOT NULL)
  * @to_profile: profile to change to  (NOT NULL)
  *
- * Check if the task is ptraced and if so if the tracing task is allowed
+ * Check if current is ptraced and if so if the tracing task is allowed
  * to trace the new domain
  *
  * Returns: %0 or error if change not allowed
  */
-static int may_change_ptraced_domain(struct task_struct *task,
-				     struct aa_profile *to_profile)
+static int may_change_ptraced_domain(struct aa_profile *to_profile)
 {
 	struct task_struct *tracer;
 	struct aa_profile *tracerp = NULL;
 	int error = 0;
 
 	rcu_read_lock();
-	tracer = ptrace_parent(task);
+	tracer = ptrace_parent(current);
 	if (tracer)
 		/* released below */
 		tracerp = aa_get_task_profile(tracer);
@@ -477,7 +475,7 @@ int apparmor_bprm_set_creds(struct linux_binprm *bprm)
 	}
 
 	if (bprm->unsafe & (LSM_UNSAFE_PTRACE | LSM_UNSAFE_PTRACE_CAP)) {
-		error = may_change_ptraced_domain(current, new_profile);
+		error = may_change_ptraced_domain(new_profile);
 		if (error) {
 			aa_put_profile(new_profile);
 			goto audit;
@@ -690,7 +688,7 @@ int aa_change_hat(const char *hats[], int count, u64 token, bool permtest)
 			}
 		}
 
-		error = may_change_ptraced_domain(current, hat);
+		error = may_change_ptraced_domain(hat);
 		if (error) {
 			info = "ptraced";
 			error = -EPERM;
@@ -829,7 +827,7 @@ int aa_change_profile(const char *ns_name, const char *hname, bool onexec,
 	}
 
 	/* check if tracing task is allowed to trace target domain */
-	error = may_change_ptraced_domain(current, target);
+	error = may_change_ptraced_domain(target);
 	if (error) {
 		info = "ptrace prevents transition";
 		goto audit;
-- 
cgit 


From 1400b4204ca334bb67be5b091b45214b57912b33 Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Mon, 28 Oct 2013 19:34:41 +1100
Subject: powerpc: Add includes to fix powernv/rng.c build

Caused by commit a4da0d50b2a0 ("powerpc: Implement
arch_get_random_long/int() for powernv") from the powerpc tree
interacting with commit b5b4bb3f6a11 ("of: only include prom.h on sparc")
from the dt-rh tree.

I added this merge fix patch (which will need to be sent to Linus when
these two trees get merged, or could be applied now to the powerpc tree):

[ Also add linux/smp.h to get cpu_to_chip_id -- BenH ]

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/powernv/rng.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/powerpc/platforms/powernv/rng.c b/arch/powerpc/platforms/powernv/rng.c
index 02db7d73cf8b..8844628915dc 100644
--- a/arch/powerpc/platforms/powernv/rng.c
+++ b/arch/powerpc/platforms/powernv/rng.c
@@ -11,10 +11,13 @@
 
 #include <linux/kernel.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/slab.h>
+#include <linux/smp.h>
 #include <asm/archrandom.h>
 #include <asm/io.h>
+#include <asm/prom.h>
 #include <asm/machdep.h>
 
 
-- 
cgit 


From f5467e28d4e2569b2c71435d438ce3c7f9ac238e Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Tue, 29 Oct 2013 16:21:26 +1100
Subject: powerpc/boot: Don't change link address for OF-based platforms

Commit c55aef0e5bc6 ("powerpc/boot: Change the load address for the
wrapper to fit the kernel") adjusts the wrapper address unnecessarily
for platforms that use arch/powerpc/boot/of.c, since the code there
allocates space for the kernel wherever it can find it and doesn't
necessarily load the kernel at address 0.  Changing the link address
is actually harmful since it can cause the zImage to overlap with
Open Firmware and thus fail to boot.

To fix this, we set make_space to n for all of the platforms that
use of.o.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/boot/wrapper | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
index cd7af841ba05..ac16e9984ecb 100755
--- a/arch/powerpc/boot/wrapper
+++ b/arch/powerpc/boot/wrapper
@@ -150,18 +150,22 @@ case "$platform" in
 pseries)
     platformo="$object/of.o $object/epapr.o"
     link_address='0x4000000'
+    make_space=n
     ;;
 maple)
     platformo="$object/of.o $object/epapr.o"
     link_address='0x400000'
+    make_space=n
     ;;
 pmac|chrp)
     platformo="$object/of.o $object/epapr.o"
+    make_space=n
     ;;
 coff)
     platformo="$object/crt0.o $object/of.o $object/epapr.o"
     lds=$object/zImage.coff.lds
     link_address='0x500000'
+    make_space=n
     pie=
     ;;
 miboot|uboot*)
-- 
cgit 


From ec32dd663da29d0e2e3ca964d6a94c683a6582a9 Mon Sep 17 00:00:00 2001
From: Robert Jennings <rcj@linux.vnet.ibm.com>
Date: Mon, 28 Oct 2013 09:20:50 -0500
Subject: powerpc: Fix warnings for arch/powerpc/mm/numa.c

Simple fixes for sparse warnings in this file.

Resolves:
arch/powerpc/mm/numa.c:198:24:
        warning: Using plain integer as NULL pointer

arch/powerpc/mm/numa.c:1157:5:
       warning: symbol 'hot_add_node_scn_to_nid' was not declared.
                Should it be static?

arch/powerpc/mm/numa.c:1238:28:
       warning: Using plain integer as NULL pointer

arch/powerpc/mm/numa.c:1538:6:
       warning: symbol 'topology_schedule_update' was not declared.
                Should it be static?

Signed-off-by: Robert C Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/mm/numa.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index c916127f10c3..33d67844062c 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -195,7 +195,7 @@ static const __be32 *of_get_usable_memory(struct device_node *memory)
 	u32 len;
 	prop = of_get_property(memory, "linux,drconf-usable-memory", &len);
 	if (!prop || len < sizeof(unsigned int))
-		return 0;
+		return NULL;
 	return prop;
 }
 
@@ -1154,7 +1154,7 @@ static int hot_add_drconf_scn_to_nid(struct device_node *memory,
  * represented in the device tree as a node (i.e. memory@XXXX) for
  * each memblock.
  */
-int hot_add_node_scn_to_nid(unsigned long scn_addr)
+static int hot_add_node_scn_to_nid(unsigned long scn_addr)
 {
 	struct device_node *memory;
 	int nid = -1;
@@ -1235,7 +1235,7 @@ static u64 hot_add_drconf_memory_max(void)
         struct device_node *memory = NULL;
         unsigned int drconf_cell_cnt = 0;
         u64 lmb_size = 0;
-	const __be32 *dm = 0;
+	const __be32 *dm = NULL;
 
         memory = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory");
         if (memory) {
@@ -1535,7 +1535,7 @@ static void topology_work_fn(struct work_struct *work)
 }
 static DECLARE_WORK(topology_work, topology_work_fn);
 
-void topology_schedule_update(void)
+static void topology_schedule_update(void)
 {
 	schedule_work(&topology_work);
 }
-- 
cgit 


From b88c4767d9e2290aaa22b8b3702ad72af0ebd113 Mon Sep 17 00:00:00 2001
From: Robert Jennings <rcj@linux.vnet.ibm.com>
Date: Mon, 28 Oct 2013 09:20:51 -0500
Subject: powerpc: Move local setup.h declarations to arch includes

Move the few declarations from arch/powerpc/kernel/setup.h
into arch/powerpc/include/asm/setup.h.  This resolves a
sparse warning for arch/powerpc/mm/numa.c which defines
do_init_bootmem() but can't include the setup.h header
in the prior path.

Resolves:
arch/powerpc/mm/numa.c:998:13:
        warning: symbol 'do_init_bootmem' was not declared.
                 Should it be static?

Signed-off-by: Robert C Jennings <rcj@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/setup.h   | 4 ++++
 arch/powerpc/kernel/module.c       | 3 +--
 arch/powerpc/kernel/module_32.c    | 3 +--
 arch/powerpc/kernel/module_64.c    | 3 +--
 arch/powerpc/kernel/setup-common.c | 2 --
 arch/powerpc/kernel/setup.h        | 9 ---------
 arch/powerpc/kernel/setup_32.c     | 2 --
 arch/powerpc/kernel/setup_64.c     | 2 --
 arch/powerpc/kernel/vdso.c         | 3 +--
 9 files changed, 8 insertions(+), 23 deletions(-)
 delete mode 100644 arch/powerpc/kernel/setup.h

diff --git a/arch/powerpc/include/asm/setup.h b/arch/powerpc/include/asm/setup.h
index d3ca85529b8b..703a8412dac2 100644
--- a/arch/powerpc/include/asm/setup.h
+++ b/arch/powerpc/include/asm/setup.h
@@ -23,6 +23,10 @@ extern void reloc_got2(unsigned long);
 
 #define PTRRELOC(x)	((typeof(x)) add_reloc_offset((unsigned long)(x)))
 
+void check_for_initrd(void);
+void do_init_bootmem(void);
+void setup_panic(void);
+
 #endif /* !__ASSEMBLY__ */
 
 #endif	/* _ASM_POWERPC_SETUP_H */
diff --git a/arch/powerpc/kernel/module.c b/arch/powerpc/kernel/module.c
index 2d275707f419..9547381b631a 100644
--- a/arch/powerpc/kernel/module.c
+++ b/arch/powerpc/kernel/module.c
@@ -25,8 +25,7 @@
 #include <asm/uaccess.h>
 #include <asm/firmware.h>
 #include <linux/sort.h>
-
-#include "setup.h"
+#include <asm/setup.h>
 
 LIST_HEAD(module_bug_list);
 
diff --git a/arch/powerpc/kernel/module_32.c b/arch/powerpc/kernel/module_32.c
index 2e3200ca485f..6cff040bf456 100644
--- a/arch/powerpc/kernel/module_32.c
+++ b/arch/powerpc/kernel/module_32.c
@@ -26,8 +26,7 @@
 #include <linux/cache.h>
 #include <linux/bug.h>
 #include <linux/sort.h>
-
-#include "setup.h"
+#include <asm/setup.h>
 
 #if 0
 #define DEBUGP printk
diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index a102f4412392..12664c130d73 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c
@@ -26,8 +26,7 @@
 #include <asm/firmware.h>
 #include <asm/code-patching.h>
 #include <linux/sort.h>
-
-#include "setup.h"
+#include <asm/setup.h>
 
 /* FIXME: We don't do .init separately.  To do this, we'd need to have
    a separate r2 value in the init and core section, and stub between
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index 3d261c071fc8..febc80445d25 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -62,8 +62,6 @@
 #include <mm/mmu_decl.h>
 #include <asm/fadump.h>
 
-#include "setup.h"
-
 #ifdef DEBUG
 #include <asm/udbg.h>
 #define DBG(fmt...) udbg_printf(fmt)
diff --git a/arch/powerpc/kernel/setup.h b/arch/powerpc/kernel/setup.h
deleted file mode 100644
index 4c67ad7fae08..000000000000
--- a/arch/powerpc/kernel/setup.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef _POWERPC_KERNEL_SETUP_H
-#define _POWERPC_KERNEL_SETUP_H
-
-void check_for_initrd(void);
-void do_init_bootmem(void);
-void setup_panic(void);
-extern int do_early_xmon;
-
-#endif /* _POWERPC_KERNEL_SETUP_H */
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index a4bbcae72578..b903dc5cf944 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -40,8 +40,6 @@
 #include <asm/mmu_context.h>
 #include <asm/epapr_hcalls.h>
 
-#include "setup.h"
-
 #define DBG(fmt...)
 
 extern void bootx_init(unsigned long r4, unsigned long phys);
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 278ca93e1f28..4085aaa9478f 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -68,8 +68,6 @@
 #include <asm/hugetlb.h>
 #include <asm/epapr_hcalls.h>
 
-#include "setup.h"
-
 #ifdef DEBUG
 #define DBG(fmt...) udbg_printf(fmt)
 #else
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index 1d9c92621b36..094e45c16a17 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -34,8 +34,7 @@
 #include <asm/firmware.h>
 #include <asm/vdso.h>
 #include <asm/vdso_datapage.h>
-
-#include "setup.h"
+#include <asm/setup.h>
 
 #undef DEBUG
 
-- 
cgit 


From b83941798c35f9cffba36927011df2b53c3884d8 Mon Sep 17 00:00:00 2001
From: Vaishnavi Bhat <vaishnavi@linux.vnet.ibm.com>
Date: Sun, 27 Oct 2013 11:47:19 +0530
Subject: powerpc: Fix a typo in comments of va to pa conversion

This patch fixes typo in comments virtual to physical
address conversion.

Signed-off-by: Vaishnavi Bhat <vaishnavi@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/page.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
index b9f426212d3a..753c66206a15 100644
--- a/arch/powerpc/include/asm/page.h
+++ b/arch/powerpc/include/asm/page.h
@@ -78,7 +78,7 @@ extern unsigned int HPAGE_SHIFT;
  *
  * Also, KERNELBASE >= PAGE_OFFSET and PHYSICAL_START >= MEMORY_START
  *
- * There are two was to determine a physical address from a virtual one:
+ * There are two ways to determine a physical address from a virtual one:
  * va = pa + PAGE_OFFSET - MEMORY_START
  * va = pa + KERNELBASE - PHYSICAL_START
  *
-- 
cgit 


From 90890b1ef568a54547ef0490a7c15d7357b98bc9 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <michael@ellerman.id.au>
Date: Mon, 28 Oct 2013 15:00:35 +1100
Subject: powerpc: FA_DUMP depends on KEXEC

If you try and build the FA_DUMP code with CONFIG_KEXEC=n, you see
errors such as the following:

arch/powerpc/kernel/fadump.c
  408:2: error: 'crashing_cpu' undeclared (first use in this function)
  410:2: error: implicit declaration of function 'crash_save_vmcoreinfo'
  513:22: error: storage size of 'prstatus' isn't known
  520:2: error: implicit declaration of function 'elf_core_copy_kernel_regs'
  521:36: error: 'KEXEC_CORE_NOTE_NAME' undeclared (first use in this function)
  624:49: error: 'note_buf_t' undeclared (first use in this function)
  872:2: error: implicit declaration of function 'paddr_vmcoreinfo_note'
  874:18: error: 'vmcoreinfo_max_size' undeclared (first use in this function)

This is because although FA_DUMP doesn't use kexec as the actual reboot
mechanism, it does use parts of the kexec code to assemble/disassemble
the crash image.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 5f15468300bf..de5c61d5db2c 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -407,7 +407,7 @@ config CRASH_DUMP
 
 config FA_DUMP
 	bool "Firmware-assisted dump"
-	depends on PPC64 && PPC_RTAS && CRASH_DUMP
+	depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC
 	help
 	  A robust mechanism to get reliable kernel crash dump with
 	  assistance from firmware. This approach does not use kexec,
-- 
cgit 


From ecb35c3943040f4db735c7d14c24ee7750cbb482 Mon Sep 17 00:00:00 2001
From: Alistair Popple <alistair@popple.id.au>
Date: Thu, 17 Oct 2013 17:08:28 +1100
Subject: powerpc: Fix 64K page size support for PPC44x

PPC44x supports page sizes other than 4K however when 64K page sizes
are selected compilation fails. This is due to a change in the
definition of pgtable_t introduced by the following patch:

commit 5c1f6ee9a31cbdac90bbb8ae1ba4475031ac74b4
Author: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
powerpc: Reduce PTE table memory wastage

The above patch only implements the new layout for PPC64 so it doesn't
compile for PPC32 with a 64K page size. Ideally we should implement
the same layout for PPC32 however for the meantime this patch reverts
the definition of pgtable_t for PPC32.

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/page.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
index 753c66206a15..32e4e212b9c1 100644
--- a/arch/powerpc/include/asm/page.h
+++ b/arch/powerpc/include/asm/page.h
@@ -403,7 +403,7 @@ void arch_free_page(struct page *page, int order);
 
 struct vm_area_struct;
 
-#ifdef CONFIG_PPC_64K_PAGES
+#if defined(CONFIG_PPC_64K_PAGES) && defined(CONFIG_PPC64)
 typedef pte_t *pgtable_t;
 #else
 typedef struct page *pgtable_t;
-- 
cgit 


From 411cabf79e684171669ad29a0628c400b4431e95 Mon Sep 17 00:00:00 2001
From: Prarit Bhargava <prarit@redhat.com>
Date: Thu, 17 Oct 2013 08:00:11 -0400
Subject: powerpc/vio: use strcpy in modalias_show

Commit e82b89a6f19bae73fb064d1b3dd91fcefbb478f4 used strcat instead of
strcpy which can result in an overflow of newlines on the buffer.

Signed-off-by: Prarit Bhargava
Cc: benh@kernel.crashing.org
Cc: ben@decadent.org.uk
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/vio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index d38cc08b16c7..cb92d8204ec7 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -1531,12 +1531,12 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 
 	dn = dev->of_node;
 	if (!dn) {
-		strcat(buf, "\n");
+		strcpy(buf, "\n");
 		return strlen(buf);
 	}
 	cp = of_get_property(dn, "compatible", NULL);
 	if (!cp) {
-		strcat(buf, "\n");
+		strcpy(buf, "\n");
 		return strlen(buf);
 	}
 
-- 
cgit 


From 3e7cec6b17d1c915cf4de1a3853f1b4ae0ed26b0 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Thu, 17 Oct 2013 23:19:43 +1100
Subject: powerpc: Fix little endian issue in OF PCI scan

This issue was causing the QEMU emulated USB device to fail dring
PCI probe.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/pci_of_scan.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c
index 4368ec6fdc8c..ac0b034f9ae0 100644
--- a/arch/powerpc/kernel/pci_of_scan.c
+++ b/arch/powerpc/kernel/pci_of_scan.c
@@ -302,7 +302,7 @@ static struct pci_dev *of_scan_pci_dev(struct pci_bus *bus,
 			    struct device_node *dn)
 {
 	struct pci_dev *dev = NULL;
-	const u32 *reg;
+	const __be32 *reg;
 	int reglen, devfn;
 
 	pr_debug("  * %s\n", dn->full_name);
@@ -312,7 +312,7 @@ static struct pci_dev *of_scan_pci_dev(struct pci_bus *bus,
 	reg = of_get_property(dn, "reg", &reglen);
 	if (reg == NULL || reglen < 20)
 		return NULL;
-	devfn = (reg[0] >> 8) & 0xff;
+	devfn = (of_read_number(reg, 1) >> 8) & 0xff;
 
 	/* Check if the PCI device is already there */
 	dev = pci_get_slot(bus, devfn);
-- 
cgit 


From df015604cf5bb09f79c353926dd7e40d00d251a3 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Thu, 17 Oct 2013 23:21:15 +1100
Subject: powerpc/pseries: Fix endian issues in pseries iommu code

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/pseries/iommu.c | 59 +++++++++++++++++-----------------
 1 file changed, 30 insertions(+), 29 deletions(-)

diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 0307901e4132..f253361552ae 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -52,7 +52,7 @@
 
 
 static void tce_invalidate_pSeries_sw(struct iommu_table *tbl,
-				      u64 *startp, u64 *endp)
+				      __be64 *startp, __be64 *endp)
 {
 	u64 __iomem *invalidate = (u64 __iomem *)tbl->it_index;
 	unsigned long start, end, inc;
@@ -86,7 +86,7 @@ static int tce_build_pSeries(struct iommu_table *tbl, long index,
 			      struct dma_attrs *attrs)
 {
 	u64 proto_tce;
-	u64 *tcep, *tces;
+	__be64 *tcep, *tces;
 	u64 rpn;
 
 	proto_tce = TCE_PCI_READ; // Read allowed
@@ -94,12 +94,12 @@ static int tce_build_pSeries(struct iommu_table *tbl, long index,
 	if (direction != DMA_TO_DEVICE)
 		proto_tce |= TCE_PCI_WRITE;
 
-	tces = tcep = ((u64 *)tbl->it_base) + index;
+	tces = tcep = ((__be64 *)tbl->it_base) + index;
 
 	while (npages--) {
 		/* can't move this out since we might cross MEMBLOCK boundary */
 		rpn = __pa(uaddr) >> TCE_SHIFT;
-		*tcep = proto_tce | (rpn & TCE_RPN_MASK) << TCE_RPN_SHIFT;
+		*tcep = cpu_to_be64(proto_tce | (rpn & TCE_RPN_MASK) << TCE_RPN_SHIFT);
 
 		uaddr += TCE_PAGE_SIZE;
 		tcep++;
@@ -113,9 +113,9 @@ static int tce_build_pSeries(struct iommu_table *tbl, long index,
 
 static void tce_free_pSeries(struct iommu_table *tbl, long index, long npages)
 {
-	u64 *tcep, *tces;
+	__be64 *tcep, *tces;
 
-	tces = tcep = ((u64 *)tbl->it_base) + index;
+	tces = tcep = ((__be64 *)tbl->it_base) + index;
 
 	while (npages--)
 		*(tcep++) = 0;
@@ -126,11 +126,11 @@ static void tce_free_pSeries(struct iommu_table *tbl, long index, long npages)
 
 static unsigned long tce_get_pseries(struct iommu_table *tbl, long index)
 {
-	u64 *tcep;
+	__be64 *tcep;
 
-	tcep = ((u64 *)tbl->it_base) + index;
+	tcep = ((__be64 *)tbl->it_base) + index;
 
-	return *tcep;
+	return be64_to_cpu(*tcep);
 }
 
 static void tce_free_pSeriesLP(struct iommu_table*, long, long);
@@ -177,7 +177,7 @@ static int tce_build_pSeriesLP(struct iommu_table *tbl, long tcenum,
 	return ret;
 }
 
-static DEFINE_PER_CPU(u64 *, tce_page);
+static DEFINE_PER_CPU(__be64 *, tce_page);
 
 static int tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
 				     long npages, unsigned long uaddr,
@@ -186,7 +186,7 @@ static int tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
 {
 	u64 rc = 0;
 	u64 proto_tce;
-	u64 *tcep;
+	__be64 *tcep;
 	u64 rpn;
 	long l, limit;
 	long tcenum_start = tcenum, npages_start = npages;
@@ -206,7 +206,7 @@ static int tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
 	 * from iommu_alloc{,_sg}()
 	 */
 	if (!tcep) {
-		tcep = (u64 *)__get_free_page(GFP_ATOMIC);
+		tcep = (__be64 *)__get_free_page(GFP_ATOMIC);
 		/* If allocation fails, fall back to the loop implementation */
 		if (!tcep) {
 			local_irq_restore(flags);
@@ -230,7 +230,7 @@ static int tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
 		limit = min_t(long, npages, 4096/TCE_ENTRY_SIZE);
 
 		for (l = 0; l < limit; l++) {
-			tcep[l] = proto_tce | (rpn & TCE_RPN_MASK) << TCE_RPN_SHIFT;
+			tcep[l] = cpu_to_be64(proto_tce | (rpn & TCE_RPN_MASK) << TCE_RPN_SHIFT);
 			rpn++;
 		}
 
@@ -329,16 +329,16 @@ struct direct_window {
 
 /* Dynamic DMA Window support */
 struct ddw_query_response {
-	u32 windows_available;
-	u32 largest_available_block;
-	u32 page_size;
-	u32 migration_capable;
+	__be32 windows_available;
+	__be32 largest_available_block;
+	__be32 page_size;
+	__be32 migration_capable;
 };
 
 struct ddw_create_response {
-	u32 liobn;
-	u32 addr_hi;
-	u32 addr_lo;
+	__be32 liobn;
+	__be32 addr_hi;
+	__be32 addr_lo;
 };
 
 static LIST_HEAD(direct_window_list);
@@ -392,7 +392,8 @@ static int tce_setrange_multi_pSeriesLP(unsigned long start_pfn,
 					unsigned long num_pfn, const void *arg)
 {
 	const struct dynamic_dma_window_prop *maprange = arg;
-	u64 *tcep, tce_size, num_tce, dma_offset, next, proto_tce, liobn;
+	u64 tce_size, num_tce, dma_offset, next, proto_tce, liobn;
+	__be64 *tcep;
 	u32 tce_shift;
 	u64 rc = 0;
 	long l, limit;
@@ -401,7 +402,7 @@ static int tce_setrange_multi_pSeriesLP(unsigned long start_pfn,
 	tcep = __get_cpu_var(tce_page);
 
 	if (!tcep) {
-		tcep = (u64 *)__get_free_page(GFP_ATOMIC);
+		tcep = (__be64 *)__get_free_page(GFP_ATOMIC);
 		if (!tcep) {
 			local_irq_enable();
 			return -ENOMEM;
@@ -435,7 +436,7 @@ static int tce_setrange_multi_pSeriesLP(unsigned long start_pfn,
 		dma_offset = next + be64_to_cpu(maprange->dma_base);
 
 		for (l = 0; l < limit; l++) {
-			tcep[l] = proto_tce | next;
+			tcep[l] = cpu_to_be64(proto_tce | next);
 			next += tce_size;
 		}
 
@@ -780,7 +781,7 @@ static u64 find_existing_ddw(struct device_node *pdn)
 	list_for_each_entry(window, &direct_window_list, list) {
 		if (window->device == pdn) {
 			direct64 = window->prop;
-			dma_addr = direct64->dma_base;
+			dma_addr = be64_to_cpu(direct64->dma_base);
 			break;
 		}
 	}
@@ -1045,11 +1046,11 @@ static u64 enable_ddw(struct pci_dev *dev, struct device_node *pdn)
 		dev_dbg(&dev->dev, "no free dynamic windows");
 		goto out_restore_window;
 	}
-	if (query.page_size & 4) {
+	if (be32_to_cpu(query.page_size) & 4) {
 		page_shift = 24; /* 16MB */
-	} else if (query.page_size & 2) {
+	} else if (be32_to_cpu(query.page_size) & 2) {
 		page_shift = 16; /* 64kB */
-	} else if (query.page_size & 1) {
+	} else if (be32_to_cpu(query.page_size) & 1) {
 		page_shift = 12; /* 4kB */
 	} else {
 		dev_dbg(&dev->dev, "no supported direct page size in mask %x",
@@ -1059,7 +1060,7 @@ static u64 enable_ddw(struct pci_dev *dev, struct device_node *pdn)
 	/* verify the window * number of ptes will map the partition */
 	/* check largest block * page size > max memory hotplug addr */
 	max_addr = memory_hotplug_max();
-	if (query.largest_available_block < (max_addr >> page_shift)) {
+	if (be32_to_cpu(query.largest_available_block) < (max_addr >> page_shift)) {
 		dev_dbg(&dev->dev, "can't map partiton max 0x%llx with %u "
 			  "%llu-sized pages\n", max_addr,  query.largest_available_block,
 			  1ULL << page_shift);
@@ -1085,7 +1086,7 @@ static u64 enable_ddw(struct pci_dev *dev, struct device_node *pdn)
 	if (ret != 0)
 		goto out_free_prop;
 
-	ddwprop->liobn = cpu_to_be32(create.liobn);
+	ddwprop->liobn = create.liobn;
 	ddwprop->dma_base = cpu_to_be64(of_read_number(&create.addr_hi, 2));
 	ddwprop->tce_shift = cpu_to_be32(page_shift);
 	ddwprop->window_shift = cpu_to_be32(len);
-- 
cgit 


From 075f6311af30b011eaa8e50341c06a9082a796a9 Mon Sep 17 00:00:00 2001
From: Tom Musta <tommusta@gmail.com>
Date: Fri, 18 Oct 2013 12:07:10 -0500
Subject: powerpc: Fix Handler of Unaligned Load/Store Strings

The alignment handler is incorrect for unaligned string instructions
in little endian mode.  These instructions access data as arrays of
bytes and thus are endian neutral.  However, the routine also handles
the load/store multiple instructions, which are NOT endian neutral.

This patch toggles the byte swapping flag for the string instructions
in little endian builds.  This effectively disables the byte swapping
logic.

Signed-off-by: Tom Musta <tmusta@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/align.c | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index 6e3f9772aaba..a3169a987b84 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -254,15 +254,20 @@ static int emulate_dcbz(struct pt_regs *regs, unsigned char __user *addr)
  * bottom 4 bytes of each register, and the loads clear the
  * top 4 bytes of the affected register.
  */
+#ifdef __BIG_ENDIAN__
 #ifdef CONFIG_PPC64
 #define REG_BYTE(rp, i)		*((u8 *)((rp) + ((i) >> 2)) + ((i) & 3) + 4)
 #else
 #define REG_BYTE(rp, i)		*((u8 *)(rp) + (i))
 #endif
+#endif
+
+#ifdef __LITTLE_ENDIAN__
+#define REG_BYTE(rp, i)		(*(((u8 *)((rp) + ((i)>>2)) + ((i)&3))))
+#endif
 
 #define SWIZ_PTR(p)		((unsigned char __user *)((p) ^ swiz))
 
-#ifdef __BIG_ENDIAN__
 static int emulate_multiple(struct pt_regs *regs, unsigned char __user *addr,
 			    unsigned int reg, unsigned int nb,
 			    unsigned int flags, unsigned int instr,
@@ -304,6 +309,15 @@ static int emulate_multiple(struct pt_regs *regs, unsigned char __user *addr,
 			nb0 = nb + reg * 4 - 128;
 			nb = 128 - reg * 4;
 		}
+#ifdef __LITTLE_ENDIAN__
+		/*
+		 *  String instructions are endian neutral but the code
+		 *  below is not.  Force byte swapping on so that the
+		 *  effects of swizzling are undone in the load/store
+		 *  loops below.
+		 */
+		flags ^= SW;
+#endif
 	} else {
 		/* lwm, stmw */
 		nb = (32 - reg) * 4;
@@ -364,6 +378,7 @@ static int emulate_multiple(struct pt_regs *regs, unsigned char __user *addr,
  * Only POWER6 has these instructions, and it does true little-endian,
  * so we don't need the address swizzling.
  */
+#ifdef __BIG_ENDIAN__
 static int emulate_fp_pair(unsigned char __user *addr, unsigned int reg,
 			   unsigned int flags)
 {
@@ -882,13 +897,9 @@ int fix_alignment(struct pt_regs *regs)
 	 * function
 	 */
 	if (flags & M) {
-#ifdef __BIG_ENDIAN__
 		PPC_WARN_ALIGNMENT(multiple, regs);
 		return emulate_multiple(regs, addr, reg, nb,
 					flags, instr, swiz);
-#else
-		return -EFAULT;
-#endif
 	}
 
 	/* Verify the address of the operand */
-- 
cgit 


From 630c8a5fc9fb2f3541652b65f23630757d304cc9 Mon Sep 17 00:00:00 2001
From: Tom Musta <tommusta@gmail.com>
Date: Fri, 18 Oct 2013 12:08:22 -0500
Subject: powerpc: Enable Little Endian Alignment Handler for Float Pair
 Instructions

This patch enables alignment handling for the load/store floating point
pair instructions (lfdp, lfdpx, stfdp, stfdpx).  The handler routine
is properly coded and only needs to be enabled.

Signed-off-by: Tom Musta <tmusta@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/align.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
index a3169a987b84..de91f3ae631e 100644
--- a/arch/powerpc/kernel/align.c
+++ b/arch/powerpc/kernel/align.c
@@ -378,7 +378,6 @@ static int emulate_multiple(struct pt_regs *regs, unsigned char __user *addr,
  * Only POWER6 has these instructions, and it does true little-endian,
  * so we don't need the address swizzling.
  */
-#ifdef __BIG_ENDIAN__
 static int emulate_fp_pair(unsigned char __user *addr, unsigned int reg,
 			   unsigned int flags)
 {
@@ -406,7 +405,6 @@ static int emulate_fp_pair(unsigned char __user *addr, unsigned int reg,
 		return -EFAULT;
 	return 1;	/* exception handled and fixed up */
 }
-#endif
 
 #ifdef CONFIG_SPE
 
@@ -918,12 +916,8 @@ int fix_alignment(struct pt_regs *regs)
 
 	/* Special case for 16-byte FP loads and stores */
 	if (nb == 16) {
-#ifdef __BIG_ENDIAN__
 		PPC_WARN_ALIGNMENT(fp_pair, regs);
 		return emulate_fp_pair(addr, reg, flags);
-#else
-		return -EFAULT;
-#endif
 	}
 
 	PPC_WARN_ALIGNMENT(unaligned, regs);
-- 
cgit 


From 6506b4718bb59c5d4e59235b81b5e13ea5d3c49a Mon Sep 17 00:00:00 2001
From: Tom Musta <tommusta@gmail.com>
Date: Fri, 18 Oct 2013 14:42:08 -0500
Subject: powerpc: Fix Unaligned Loads and Stores

This patch modifies the unaligned access routines of the sstep.c
module so that it properly reverses the bytes of storage operands
in the little endian kernel kernel.   This is implemented by
breaking an unaligned little endian access into a combination of
single byte accesses plus an overal byte reversal operation.

Signed-off-by: Tom Musta <tmusta@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/lib/sstep.c | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c
index b1faa1593c90..0121d2140ab9 100644
--- a/arch/powerpc/lib/sstep.c
+++ b/arch/powerpc/lib/sstep.c
@@ -212,11 +212,19 @@ static int __kprobes read_mem_unaligned(unsigned long *dest, unsigned long ea,
 {
 	int err;
 	unsigned long x, b, c;
+#ifdef __LITTLE_ENDIAN__
+	int len = nb; /* save a copy of the length for byte reversal */
+#endif
 
 	/* unaligned, do this in pieces */
 	x = 0;
 	for (; nb > 0; nb -= c) {
+#ifdef __LITTLE_ENDIAN__
+		c = 1;
+#endif
+#ifdef __BIG_ENDIAN__
 		c = max_align(ea);
+#endif
 		if (c > nb)
 			c = max_align(nb);
 		err = read_mem_aligned(&b, ea, c);
@@ -225,7 +233,24 @@ static int __kprobes read_mem_unaligned(unsigned long *dest, unsigned long ea,
 		x = (x << (8 * c)) + b;
 		ea += c;
 	}
+#ifdef __LITTLE_ENDIAN__
+	switch (len) {
+	case 2:
+		*dest = byterev_2(x);
+		break;
+	case 4:
+		*dest = byterev_4(x);
+		break;
+#ifdef __powerpc64__
+	case 8:
+		*dest = byterev_8(x);
+		break;
+#endif
+	}
+#endif
+#ifdef __BIG_ENDIAN__
 	*dest = x;
+#endif
 	return 0;
 }
 
@@ -273,9 +298,29 @@ static int __kprobes write_mem_unaligned(unsigned long val, unsigned long ea,
 	int err;
 	unsigned long c;
 
+#ifdef __LITTLE_ENDIAN__
+	switch (nb) {
+	case 2:
+		val = byterev_2(val);
+		break;
+	case 4:
+		val = byterev_4(val);
+		break;
+#ifdef __powerpc64__
+	case 8:
+		val = byterev_8(val);
+		break;
+#endif
+	}
+#endif
 	/* unaligned or little-endian, do this in pieces */
 	for (; nb > 0; nb -= c) {
+#ifdef __LITTLE_ENDIAN__
+		c = 1;
+#endif
+#ifdef __BIG_ENDIAN__
 		c = max_align(ea);
+#endif
 		if (c > nb)
 			c = max_align(nb);
 		err = write_mem_aligned(val >> (nb - c) * 8, ea, c);
-- 
cgit 


From dbc2fbd7c29a78724e761711d516930246c0e1c2 Mon Sep 17 00:00:00 2001
From: Tom Musta <tommusta@gmail.com>
Date: Fri, 18 Oct 2013 14:44:17 -0500
Subject: powerpc: Fix Unaligned LE Floating Point Loads and Stores

This patch addresses unaligned single precision floating point loads
and stores in the single-step code.  The old implementation
improperly treated an 8 byte structure as an array of two 4 byte
words, which is a classic little endian bug.

Signed-off-by: Tom Musta <tmusta@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/lib/sstep.c | 52 +++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 40 insertions(+), 12 deletions(-)

diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c
index 0121d2140ab9..c0511c27a733 100644
--- a/arch/powerpc/lib/sstep.c
+++ b/arch/powerpc/lib/sstep.c
@@ -355,22 +355,36 @@ static int __kprobes do_fp_load(int rn, int (*func)(int, unsigned long),
 				struct pt_regs *regs)
 {
 	int err;
-	unsigned long val[sizeof(double) / sizeof(long)];
+	union {
+		double dbl;
+		unsigned long ul[2];
+		struct {
+#ifdef __BIG_ENDIAN__
+			unsigned _pad_;
+			unsigned word;
+#endif
+#ifdef __LITTLE_ENDIAN__
+			unsigned word;
+			unsigned _pad_;
+#endif
+		} single;
+	} data;
 	unsigned long ptr;
 
 	if (!address_ok(regs, ea, nb))
 		return -EFAULT;
 	if ((ea & 3) == 0)
 		return (*func)(rn, ea);
-	ptr = (unsigned long) &val[0];
+	ptr = (unsigned long) &data.ul;
 	if (sizeof(unsigned long) == 8 || nb == 4) {
-		err = read_mem_unaligned(&val[0], ea, nb, regs);
-		ptr += sizeof(unsigned long) - nb;
+		err = read_mem_unaligned(&data.ul[0], ea, nb, regs);
+		if (nb == 4)
+			ptr = (unsigned long)&(data.single.word);
 	} else {
 		/* reading a double on 32-bit */
-		err = read_mem_unaligned(&val[0], ea, 4, regs);
+		err = read_mem_unaligned(&data.ul[0], ea, 4, regs);
 		if (!err)
-			err = read_mem_unaligned(&val[1], ea + 4, 4, regs);
+			err = read_mem_unaligned(&data.ul[1], ea + 4, 4, regs);
 	}
 	if (err)
 		return err;
@@ -382,28 +396,42 @@ static int __kprobes do_fp_store(int rn, int (*func)(int, unsigned long),
 				 struct pt_regs *regs)
 {
 	int err;
-	unsigned long val[sizeof(double) / sizeof(long)];
+	union {
+		double dbl;
+		unsigned long ul[2];
+		struct {
+#ifdef __BIG_ENDIAN__
+			unsigned _pad_;
+			unsigned word;
+#endif
+#ifdef __LITTLE_ENDIAN__
+			unsigned word;
+			unsigned _pad_;
+#endif
+		} single;
+	} data;
 	unsigned long ptr;
 
 	if (!address_ok(regs, ea, nb))
 		return -EFAULT;
 	if ((ea & 3) == 0)
 		return (*func)(rn, ea);
-	ptr = (unsigned long) &val[0];
+	ptr = (unsigned long) &data.ul[0];
 	if (sizeof(unsigned long) == 8 || nb == 4) {
-		ptr += sizeof(unsigned long) - nb;
+		if (nb == 4)
+			ptr = (unsigned long)&(data.single.word);
 		err = (*func)(rn, ptr);
 		if (err)
 			return err;
-		err = write_mem_unaligned(val[0], ea, nb, regs);
+		err = write_mem_unaligned(data.ul[0], ea, nb, regs);
 	} else {
 		/* writing a double on 32-bit */
 		err = (*func)(rn, ptr);
 		if (err)
 			return err;
-		err = write_mem_unaligned(val[0], ea, 4, regs);
+		err = write_mem_unaligned(data.ul[0], ea, 4, regs);
 		if (!err)
-			err = write_mem_unaligned(val[1], ea + 4, 4, regs);
+			err = write_mem_unaligned(data.ul[1], ea + 4, 4, regs);
 	}
 	return err;
 }
-- 
cgit 


From 733187e29576041ceccf3b82092ca900fc929170 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Sun, 20 Oct 2013 10:26:20 +1100
Subject: powerpc/pseries: Fix dedicated processor partition detection

commit f13c13a00512 (powerpc: Stop using non-architected shared_proc
field in lppaca) fixed a potential issue with shared/dedicated
partition detection. The old method of detection relied on an
unarchitected field (shared_proc), and this patch switched
to using something architected (a non zero yield_count).

Unfortunately the assertion in the Linux header that yield_count
is only non zero on shared processor partitions is not true. It
turns out dedicated processor partitions can increment yield_count
and as such we falsely detect dedicated partitions as shared.

Fix the comment, and switch back to using the old method.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/lppaca.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/include/asm/lppaca.h b/arch/powerpc/include/asm/lppaca.h
index 4470d1e34d23..844c28de7ec0 100644
--- a/arch/powerpc/include/asm/lppaca.h
+++ b/arch/powerpc/include/asm/lppaca.h
@@ -84,8 +84,8 @@ struct lppaca {
 	 * the processor is yielded (either because of an OS yield or a
 	 * hypervisor preempt).  An even value implies that the processor is
 	 * currently executing.
-	 * NOTE: This value will ALWAYS be zero for dedicated processors and
-	 * will NEVER be zero for shared processors (ie, initialized to a 1).
+	 * NOTE: Even dedicated processor partitions can yield so this
+	 * field cannot be used to determine if we are shared or dedicated.
 	 */
 	volatile __be32 yield_count;
 	volatile __be32 dispersion_count; /* dispatch changed physical cpu */
@@ -106,15 +106,15 @@ extern struct lppaca lppaca[];
 #define lppaca_of(cpu)	(*paca[cpu].lppaca_ptr)
 
 /*
- * Old kernels used a reserved bit in the VPA to determine if it was running
- * in shared processor mode. New kernels look for a non zero yield count
- * but KVM still needs to set the bit to keep the old stuff happy.
+ * We are using a non architected field to determine if a partition is
+ * shared or dedicated. This currently works on both KVM and PHYP, but
+ * we will have to transition to something better.
  */
 #define LPPACA_OLD_SHARED_PROC		2
 
 static inline bool lppaca_shared_proc(struct lppaca *l)
 {
-	return l->yield_count != 0;
+	return !!(l->__old_status & LPPACA_OLD_SHARED_PROC);
 }
 
 /*
-- 
cgit 


From 686245bee9528a2f62fa88b1f776eacd94d858ee Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Tue, 22 Oct 2013 11:05:25 +1100
Subject: powerpc: Use -mcpu=power7 on ppc64 little endian builds

Using -mcpu=power7 allows gcc to use a number of new instructions
including 64 bit byte reversed loads.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/Kconfig.cputype | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 6704e2e20e6b..c2a566fb8bb8 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -93,22 +93,23 @@ choice
 
 config GENERIC_CPU
 	bool "Generic"
+	depends on !CPU_LITTLE_ENDIAN
 
 config CELL_CPU
 	bool "Cell Broadband Engine"
-	depends on PPC_BOOK3S_64
+	depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
 
 config POWER4_CPU
 	bool "POWER4"
-	depends on PPC_BOOK3S_64
+	depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
 
 config POWER5_CPU
 	bool "POWER5"
-	depends on PPC_BOOK3S_64
+	depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
 
 config POWER6_CPU
 	bool "POWER6"
-	depends on PPC_BOOK3S_64
+	depends on PPC_BOOK3S_64 && !CPU_LITTLE_ENDIAN
 
 config POWER7_CPU
 	bool "POWER7"
-- 
cgit 


From 4d16bd39c094751adb556382b95373ac53edba3c Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Tue, 22 Oct 2013 11:44:50 +1100
Subject: powerpc: sync ppc64, ppc64e and pseries configs

Run savedefconfig over the ppc64, ppc64e and pseries config

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/configs/ppc64_defconfig   | 15 +++------------
 arch/powerpc/configs/ppc64e_defconfig  | 10 ++--------
 arch/powerpc/configs/pseries_defconfig | 13 +++----------
 3 files changed, 8 insertions(+), 30 deletions(-)

diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index 0e8cfd09da2f..56ac8bbeb032 100644
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -2,7 +2,6 @@ CONFIG_PPC64=y
 CONFIG_ALTIVEC=y
 CONFIG_VSX=y
 CONFIG_SMP=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_IRQ_DOMAIN_DEBUG=y
@@ -25,7 +24,6 @@ CONFIG_MODULE_UNLOAD=y
 CONFIG_MODVERSIONS=y
 CONFIG_MODULE_SRCVERSION_ALL=y
 CONFIG_PARTITION_ADVANCED=y
-CONFIG_EFI_PARTITION=y
 CONFIG_PPC_SPLPAR=y
 CONFIG_SCANLOG=m
 CONFIG_PPC_SMLPAR=y
@@ -50,12 +48,10 @@ CONFIG_CPU_FREQ_PMAC64=y
 CONFIG_HZ_100=y
 CONFIG_BINFMT_MISC=m
 CONFIG_PPC_TRANSACTIONAL_MEM=y
-CONFIG_HOTPLUG_CPU=y
 CONFIG_KEXEC=y
 CONFIG_IRQ_ALL_CPUS=y
 CONFIG_MEMORY_HOTREMOVE=y
 CONFIG_SCHED_SMT=y
-CONFIG_PPC_DENORMALISATION=y
 CONFIG_PCCARD=y
 CONFIG_ELECTRA_CF=y
 CONFIG_HOTPLUG_PCI=y
@@ -89,7 +85,6 @@ CONFIG_NF_CONNTRACK_PPTP=m
 CONFIG_NF_CONNTRACK_SIP=m
 CONFIG_NF_CONNTRACK_TFTP=m
 CONFIG_NF_CT_NETLINK=m
-CONFIG_NETFILTER_TPROXY=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
 CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
 CONFIG_NETFILTER_XT_TARGET_DSCP=m
@@ -131,7 +126,6 @@ CONFIG_NETFILTER_XT_MATCH_STRING=m
 CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
 CONFIG_NETFILTER_XT_MATCH_U32=m
 CONFIG_NF_CONNTRACK_IPV4=m
-CONFIG_IP_NF_QUEUE=m
 CONFIG_IP_NF_IPTABLES=m
 CONFIG_IP_NF_MATCH_AH=m
 CONFIG_IP_NF_MATCH_ECN=m
@@ -216,6 +210,7 @@ CONFIG_DUMMY=m
 CONFIG_NETCONSOLE=y
 CONFIG_NETPOLL_TRAP=y
 CONFIG_TUN=m
+CONFIG_VHOST_NET=m
 CONFIG_VORTEX=y
 CONFIG_ACENIC=m
 CONFIG_ACENIC_OMIT_TIGON_I=y
@@ -301,7 +296,6 @@ CONFIG_HID_GYRATION=y
 CONFIG_HID_PANTHERLORD=y
 CONFIG_HID_PETALYNX=y
 CONFIG_HID_SAMSUNG=y
-CONFIG_HID_SONY=y
 CONFIG_HID_SUNPLUS=y
 CONFIG_USB_HIDDEV=y
 CONFIG_USB=y
@@ -386,21 +380,19 @@ CONFIG_NLS_UTF8=y
 CONFIG_CRC_T10DIF=y
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_KERNEL=y
+CONFIG_DEBUG_STACK_USAGE=y
+CONFIG_DEBUG_STACKOVERFLOW=y
 CONFIG_LOCKUP_DETECTOR=y
 CONFIG_DEBUG_MUTEXES=y
-CONFIG_DEBUG_STACK_USAGE=y
 CONFIG_LATENCYTOP=y
 CONFIG_SCHED_TRACER=y
 CONFIG_BLK_DEV_IO_TRACE=y
-CONFIG_DEBUG_STACKOVERFLOW=y
 CONFIG_CODE_PATCHING_SELFTEST=y
 CONFIG_FTR_FIXUP_SELFTEST=y
 CONFIG_MSI_BITMAP_SELFTEST=y
 CONFIG_XMON=y
 CONFIG_BOOTX_TEXT=y
 CONFIG_PPC_EARLY_DEBUG=y
-CONFIG_PPC_EARLY_DEBUG_BOOTX=y
-CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_PCBC=m
 CONFIG_CRYPTO_HMAC=y
@@ -422,4 +414,3 @@ CONFIG_CRYPTO_DEV_NX_ENCRYPT=m
 CONFIG_VIRTUALIZATION=y
 CONFIG_KVM_BOOK3S_64=m
 CONFIG_KVM_BOOK3S_64_HV=y
-CONFIG_VHOST_NET=m
diff --git a/arch/powerpc/configs/ppc64e_defconfig b/arch/powerpc/configs/ppc64e_defconfig
index 0a6be6dd6003..f627fda08953 100644
--- a/arch/powerpc/configs/ppc64e_defconfig
+++ b/arch/powerpc/configs/ppc64e_defconfig
@@ -1,7 +1,6 @@
 CONFIG_PPC64=y
 CONFIG_PPC_BOOK3E_64=y
 CONFIG_SMP=y
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_NO_HZ=y
@@ -61,7 +60,6 @@ CONFIG_NF_CONNTRACK_PPTP=m
 CONFIG_NF_CONNTRACK_SIP=m
 CONFIG_NF_CONNTRACK_TFTP=m
 CONFIG_NF_CT_NETLINK=m
-CONFIG_NETFILTER_TPROXY=m
 CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
 CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
 CONFIG_NETFILTER_XT_TARGET_DSCP=m
@@ -103,7 +101,6 @@ CONFIG_NETFILTER_XT_MATCH_STRING=m
 CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
 CONFIG_NETFILTER_XT_MATCH_U32=m
 CONFIG_NF_CONNTRACK_IPV4=m
-CONFIG_IP_NF_QUEUE=m
 CONFIG_IP_NF_IPTABLES=m
 CONFIG_IP_NF_MATCH_AH=m
 CONFIG_IP_NF_MATCH_ECN=m
@@ -193,7 +190,6 @@ CONFIG_PPP_SYNC_TTY=m
 CONFIG_INPUT_EVDEV=m
 CONFIG_INPUT_MISC=y
 # CONFIG_SERIO_SERPORT is not set
-CONFIG_VT_HW_CONSOLE_BINDING=y
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
 # CONFIG_HW_RANDOM is not set
@@ -230,7 +226,6 @@ CONFIG_HID_NTRIG=y
 CONFIG_HID_PANTHERLORD=y
 CONFIG_HID_PETALYNX=y
 CONFIG_HID_SAMSUNG=y
-CONFIG_HID_SONY=y
 CONFIG_HID_SUNPLUS=y
 CONFIG_HID_GREENASIA=y
 CONFIG_HID_SMARTJOYPLUS=y
@@ -302,19 +297,18 @@ CONFIG_NLS_UTF8=y
 CONFIG_CRC_T10DIF=y
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_KERNEL=y
+CONFIG_DEBUG_STACK_USAGE=y
+CONFIG_DEBUG_STACKOVERFLOW=y
 CONFIG_DETECT_HUNG_TASK=y
 CONFIG_DEBUG_MUTEXES=y
-CONFIG_DEBUG_STACK_USAGE=y
 CONFIG_LATENCYTOP=y
 CONFIG_IRQSOFF_TRACER=y
 CONFIG_SCHED_TRACER=y
 CONFIG_BLK_DEV_IO_TRACE=y
-CONFIG_DEBUG_STACKOVERFLOW=y
 CONFIG_CODE_PATCHING_SELFTEST=y
 CONFIG_FTR_FIXUP_SELFTEST=y
 CONFIG_MSI_BITMAP_SELFTEST=y
 CONFIG_XMON=y
-CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_CCM=m
 CONFIG_CRYPTO_GCM=m
diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig
index 1d4b9763895d..2dec56dd3e93 100644
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@@ -3,7 +3,6 @@ CONFIG_ALTIVEC=y
 CONFIG_VSX=y
 CONFIG_SMP=y
 CONFIG_NR_CPUS=2048
-CONFIG_EXPERIMENTAL=y
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_AUDIT=y
@@ -33,7 +32,6 @@ CONFIG_MODULE_UNLOAD=y
 CONFIG_MODVERSIONS=y
 CONFIG_MODULE_SRCVERSION_ALL=y
 CONFIG_PARTITION_ADVANCED=y
-CONFIG_EFI_PARTITION=y
 CONFIG_PPC_SPLPAR=y
 CONFIG_SCANLOG=m
 CONFIG_PPC_SMLPAR=y
@@ -44,7 +42,6 @@ CONFIG_IBMEBUS=y
 CONFIG_HZ_100=y
 CONFIG_BINFMT_MISC=m
 CONFIG_PPC_TRANSACTIONAL_MEM=y
-CONFIG_HOTPLUG_CPU=y
 CONFIG_KEXEC=y
 CONFIG_IRQ_ALL_CPUS=y
 CONFIG_MEMORY_HOTPLUG=y
@@ -52,7 +49,6 @@ CONFIG_MEMORY_HOTREMOVE=y
 CONFIG_PPC_64K_PAGES=y
 CONFIG_PPC_SUBPAGE_PROT=y
 CONFIG_SCHED_SMT=y
-CONFIG_PPC_DENORMALISATION=y
 CONFIG_HOTPLUG_PCI=y
 CONFIG_HOTPLUG_PCI_RPA=m
 CONFIG_HOTPLUG_PCI_RPA_DLPAR=m
@@ -113,7 +109,6 @@ CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
 CONFIG_NETFILTER_XT_MATCH_TIME=m
 CONFIG_NETFILTER_XT_MATCH_U32=m
 CONFIG_NF_CONNTRACK_IPV4=m
-CONFIG_IP_NF_QUEUE=m
 CONFIG_IP_NF_IPTABLES=m
 CONFIG_IP_NF_MATCH_AH=m
 CONFIG_IP_NF_MATCH_ECN=m
@@ -179,6 +174,7 @@ CONFIG_DUMMY=m
 CONFIG_NETCONSOLE=y
 CONFIG_NETPOLL_TRAP=y
 CONFIG_TUN=m
+CONFIG_VHOST_NET=m
 CONFIG_VORTEX=y
 CONFIG_ACENIC=m
 CONFIG_ACENIC_OMIT_TIGON_I=y
@@ -237,7 +233,6 @@ CONFIG_HID_GYRATION=y
 CONFIG_HID_PANTHERLORD=y
 CONFIG_HID_PETALYNX=y
 CONFIG_HID_SAMSUNG=y
-CONFIG_HID_SONY=y
 CONFIG_HID_SUNPLUS=y
 CONFIG_USB_HIDDEV=y
 CONFIG_USB=y
@@ -314,18 +309,17 @@ CONFIG_NLS_UTF8=y
 CONFIG_CRC_T10DIF=y
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_KERNEL=y
-CONFIG_LOCKUP_DETECTOR=y
 CONFIG_DEBUG_STACK_USAGE=y
+CONFIG_DEBUG_STACKOVERFLOW=y
+CONFIG_LOCKUP_DETECTOR=y
 CONFIG_LATENCYTOP=y
 CONFIG_SCHED_TRACER=y
 CONFIG_BLK_DEV_IO_TRACE=y
-CONFIG_DEBUG_STACKOVERFLOW=y
 CONFIG_CODE_PATCHING_SELFTEST=y
 CONFIG_FTR_FIXUP_SELFTEST=y
 CONFIG_MSI_BITMAP_SELFTEST=y
 CONFIG_XMON=y
 CONFIG_XMON_DEFAULT=y
-CONFIG_CRYPTO_NULL=m
 CONFIG_CRYPTO_TEST=m
 CONFIG_CRYPTO_PCBC=m
 CONFIG_CRYPTO_HMAC=y
@@ -347,4 +341,3 @@ CONFIG_CRYPTO_DEV_NX_ENCRYPT=m
 CONFIG_VIRTUALIZATION=y
 CONFIG_KVM_BOOK3S_64=m
 CONFIG_KVM_BOOK3S_64_HV=y
-CONFIG_VHOST_NET=m
-- 
cgit 


From b7697592ef7c52aaf42879ae718a4b0a8a8b17dc Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Tue, 22 Oct 2013 11:45:31 +1100
Subject: powerpc: Enable multipath modules on ppc64 and pseries

Enable a few modules required to boot on a POWER multipath
box.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/configs/ppc64_defconfig   | 6 ++++++
 arch/powerpc/configs/pseries_defconfig | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index 56ac8bbeb032..f2e1d1ba51f8 100644
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -179,6 +179,9 @@ CONFIG_SCSI_IPR=y
 CONFIG_SCSI_QLA_FC=m
 CONFIG_SCSI_QLA_ISCSI=m
 CONFIG_SCSI_LPFC=m
+CONFIG_SCSI_DH=m
+CONFIG_SCSI_DH_RDAC=m
+CONFIG_SCSI_DH_ALUA=m
 CONFIG_ATA=y
 CONFIG_SATA_SIL24=y
 CONFIG_SATA_SVW=y
@@ -197,6 +200,9 @@ CONFIG_DM_SNAPSHOT=m
 CONFIG_DM_MIRROR=m
 CONFIG_DM_ZERO=m
 CONFIG_DM_MULTIPATH=m
+CONFIG_DM_MULTIPATH_QL=m
+CONFIG_DM_MULTIPATH_ST=m
+CONFIG_DM_UEVENT=y
 CONFIG_ADB_PMU=y
 CONFIG_PMAC_SMU=y
 CONFIG_THERM_PM72=y
diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig
index 2dec56dd3e93..eafec1a622a8 100644
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@@ -152,6 +152,9 @@ CONFIG_SCSI_IPR=y
 CONFIG_SCSI_QLA_FC=m
 CONFIG_SCSI_QLA_ISCSI=m
 CONFIG_SCSI_LPFC=m
+CONFIG_SCSI_DH=m
+CONFIG_SCSI_DH_RDAC=m
+CONFIG_SCSI_DH_ALUA=m
 CONFIG_ATA=y
 # CONFIG_ATA_SFF is not set
 CONFIG_MD=y
@@ -169,6 +172,9 @@ CONFIG_DM_SNAPSHOT=m
 CONFIG_DM_MIRROR=m
 CONFIG_DM_ZERO=m
 CONFIG_DM_MULTIPATH=m
+CONFIG_DM_MULTIPATH_QL=m
+CONFIG_DM_MULTIPATH_ST=m
+CONFIG_DM_UEVENT=y
 CONFIG_BONDING=m
 CONFIG_DUMMY=m
 CONFIG_NETCONSOLE=y
-- 
cgit 


From 65508689d43afd0d8a3b659e83ed51b90c5083cf Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Tue, 22 Oct 2013 11:46:15 +1100
Subject: powerpc: Enable virtio on ppc64 and pseries configs

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/configs/ppc64_defconfig   | 6 ++++++
 arch/powerpc/configs/pseries_defconfig | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index f2e1d1ba51f8..581a3bcae728 100644
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -151,6 +151,7 @@ CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_NBD=m
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=65536
+CONFIG_VIRTIO_BLK=m
 CONFIG_IDE=y
 CONFIG_BLK_DEV_IDECD=y
 CONFIG_BLK_DEV_GENERIC=y
@@ -179,6 +180,7 @@ CONFIG_SCSI_IPR=y
 CONFIG_SCSI_QLA_FC=m
 CONFIG_SCSI_QLA_ISCSI=m
 CONFIG_SCSI_LPFC=m
+CONFIG_SCSI_VIRTIO=m
 CONFIG_SCSI_DH=m
 CONFIG_SCSI_DH_RDAC=m
 CONFIG_SCSI_DH_ALUA=m
@@ -216,6 +218,7 @@ CONFIG_DUMMY=m
 CONFIG_NETCONSOLE=y
 CONFIG_NETPOLL_TRAP=y
 CONFIG_TUN=m
+CONFIG_VIRTIO_NET=m
 CONFIG_VHOST_NET=m
 CONFIG_VORTEX=y
 CONFIG_ACENIC=m
@@ -263,6 +266,7 @@ CONFIG_HVC_CONSOLE=y
 CONFIG_HVC_RTAS=y
 CONFIG_HVC_BEAT=y
 CONFIG_HVCS=m
+CONFIG_VIRTIO_CONSOLE=m
 CONFIG_IBM_BSR=m
 CONFIG_RAW_DRIVER=y
 CONFIG_I2C_CHARDEV=y
@@ -328,6 +332,8 @@ CONFIG_EDAC_MM_EDAC=y
 CONFIG_EDAC_PASEMI=y
 CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_DS1307=y
+CONFIG_VIRTIO_PCI=m
+CONFIG_VIRTIO_BALLOON=m
 CONFIG_EXT2_FS=y
 CONFIG_EXT2_FS_XATTR=y
 CONFIG_EXT2_FS_POSIX_ACL=y
diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig
index eafec1a622a8..e9a8b4e0a0f6 100644
--- a/arch/powerpc/configs/pseries_defconfig
+++ b/arch/powerpc/configs/pseries_defconfig
@@ -127,6 +127,7 @@ CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_NBD=m
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=65536
+CONFIG_VIRTIO_BLK=m
 CONFIG_IDE=y
 CONFIG_BLK_DEV_IDECD=y
 CONFIG_BLK_DEV_GENERIC=y
@@ -152,6 +153,7 @@ CONFIG_SCSI_IPR=y
 CONFIG_SCSI_QLA_FC=m
 CONFIG_SCSI_QLA_ISCSI=m
 CONFIG_SCSI_LPFC=m
+CONFIG_SCSI_VIRTIO=m
 CONFIG_SCSI_DH=m
 CONFIG_SCSI_DH_RDAC=m
 CONFIG_SCSI_DH_ALUA=m
@@ -180,6 +182,7 @@ CONFIG_DUMMY=m
 CONFIG_NETCONSOLE=y
 CONFIG_NETPOLL_TRAP=y
 CONFIG_TUN=m
+CONFIG_VIRTIO_NET=m
 CONFIG_VHOST_NET=m
 CONFIG_VORTEX=y
 CONFIG_ACENIC=m
@@ -218,6 +221,7 @@ CONFIG_SERIAL_JSM=m
 CONFIG_HVC_CONSOLE=y
 CONFIG_HVC_RTAS=y
 CONFIG_HVCS=m
+CONFIG_VIRTIO_CONSOLE=m
 CONFIG_IBM_BSR=m
 CONFIG_GEN_RTC=y
 CONFIG_RAW_DRIVER=y
@@ -259,6 +263,8 @@ CONFIG_INFINIBAND_IPOIB=m
 CONFIG_INFINIBAND_IPOIB_CM=y
 CONFIG_INFINIBAND_SRP=m
 CONFIG_INFINIBAND_ISER=m
+CONFIG_VIRTIO_PCI=m
+CONFIG_VIRTIO_BALLOON=m
 CONFIG_EXT2_FS=y
 CONFIG_EXT2_FS_XATTR=y
 CONFIG_EXT2_FS_POSIX_ACL=y
-- 
cgit 


From bbe30b3b576b4ba96641a7c244071282618b2cbb Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Tue, 15 Oct 2013 14:36:31 +1100
Subject: powerpc: Use 32 bit loads and stores when operating on condition
 register values

The condition register (CR) is a 32 bit quantity so we should use
32 bit loads and stores.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/tm.S                       | 8 ++++----
 arch/powerpc/platforms/powernv/opal-wrappers.S | 4 ++--
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/powerpc/kernel/tm.S b/arch/powerpc/kernel/tm.S
index 761af4f0a632..ef47bcbd4352 100644
--- a/arch/powerpc/kernel/tm.S
+++ b/arch/powerpc/kernel/tm.S
@@ -106,7 +106,7 @@ DSCR_DEFAULT:
 _GLOBAL(tm_reclaim)
 	mfcr	r6
 	mflr	r0
-	std	r6, 8(r1)
+	stw	r6, 8(r1)
 	std	r0, 16(r1)
 	std	r2, 40(r1)
 	stdu	r1, -TM_FRAME_SIZE(r1)
@@ -285,7 +285,7 @@ dont_backup_fp:
 	REST_NVGPRS(r1)
 
 	addi    r1, r1, TM_FRAME_SIZE
-	ld	r4, 8(r1)
+	lwz	r4, 8(r1)
 	ld	r0, 16(r1)
 	mtcr	r4
 	mtlr	r0
@@ -310,7 +310,7 @@ dont_backup_fp:
 _GLOBAL(tm_recheckpoint)
 	mfcr	r5
 	mflr	r0
-	std	r5, 8(r1)
+	stw	r5, 8(r1)
 	std	r0, 16(r1)
 	std	r2, 40(r1)
 	stdu	r1, -TM_FRAME_SIZE(r1)
@@ -444,7 +444,7 @@ restore_gprs:
 	REST_NVGPRS(r1)
 
 	addi    r1, r1, TM_FRAME_SIZE
-	ld	r4, 8(r1)
+	lwz	r4, 8(r1)
 	ld	r0, 16(r1)
 	mtcr	r4
 	mtlr	r0
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S
index 2a03e1e63c7a..403d05840625 100644
--- a/arch/powerpc/platforms/powernv/opal-wrappers.S
+++ b/arch/powerpc/platforms/powernv/opal-wrappers.S
@@ -24,7 +24,7 @@
 	mflr	r0;			\
 	mfcr	r12;			\
 	std	r0,16(r1);		\
-	std	r12,8(r1);		\
+	stw	r12,8(r1);		\
 	std	r1,PACAR1(r13);		\
 	li	r0,0;			\
 	mfmsr	r12;			\
@@ -53,7 +53,7 @@ _STATIC(opal_return)
 	 */
 	FIXUP_ENDIAN
 	ld	r2,PACATOC(r13);
-	ld	r4,8(r1);
+	lwz	r4,8(r1);
 	ld	r5,16(r1);
 	ld	r6,PACASAVEDMSR(r13);
 	mtspr	SPRN_SRR0,r5;
-- 
cgit 


From 07fb41a7525539d7ad37c25f2a2689fd95a6ab68 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Mon, 14 Oct 2013 09:40:16 +0200
Subject: powerpc/kexec: kexec_sequence() is in misc_64.S

Correct reference to the location of the kexec_sequence() assembly helper.
There never was a kexec_stub.S in mainline.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/machine_kexec_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/machine_kexec_64.c b/arch/powerpc/kernel/machine_kexec_64.c
index 611acdf30096..be4e6d648f60 100644
--- a/arch/powerpc/kernel/machine_kexec_64.c
+++ b/arch/powerpc/kernel/machine_kexec_64.c
@@ -312,7 +312,7 @@ static union thread_union kexec_stack __init_task_data =
  */
 struct paca_struct kexec_paca;
 
-/* Our assembly helper, in kexec_stub.S */
+/* Our assembly helper, in misc_64.S */
 extern void kexec_sequence(void *newstack, unsigned long start,
 			   void *image, void *control,
 			   void (*clear_all)(void)) __noreturn;
-- 
cgit 


From ef1313deafb7baa6d3382044e962d5ad5e8c8dd6 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 14 Oct 2013 21:03:58 +1100
Subject: powerpc: Add VMX optimised xor for RAID5

Add a VMX optimised xor, used primarily for RAID5. On a POWER7 blade
this is a decent win:

   32regs    : 17932.800 MB/sec
   altivec   : 19724.800 MB/sec

The bigger gain is when the same test is run in SMT4 mode, as it
would if there was a lot of work going on:

   8regs     :  8377.600 MB/sec
   altivec   : 15801.600 MB/sec

I tested this against an array created without the patch, and also
verified it worked as expected on a little endian kernel.

[ Fix !CONFIG_ALTIVEC build -- BenH ]

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/xor.h |  67 ++++++++++++++++
 arch/powerpc/lib/Makefile      |   3 +
 arch/powerpc/lib/xor_vmx.c     | 177 +++++++++++++++++++++++++++++++++++++++++
 3 files changed, 247 insertions(+)
 create mode 100644 arch/powerpc/lib/xor_vmx.c

diff --git a/arch/powerpc/include/asm/xor.h b/arch/powerpc/include/asm/xor.h
index c82eb12a5b18..0abb97f3be10 100644
--- a/arch/powerpc/include/asm/xor.h
+++ b/arch/powerpc/include/asm/xor.h
@@ -1 +1,68 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2012
+ *
+ * Author: Anton Blanchard <anton@au.ibm.com>
+ */
+#ifndef _ASM_POWERPC_XOR_H
+#define _ASM_POWERPC_XOR_H
+
+#ifdef CONFIG_ALTIVEC
+
+#include <asm/cputable.h>
+
+void xor_altivec_2(unsigned long bytes, unsigned long *v1_in,
+		   unsigned long *v2_in);
+void xor_altivec_3(unsigned long bytes, unsigned long *v1_in,
+		   unsigned long *v2_in, unsigned long *v3_in);
+void xor_altivec_4(unsigned long bytes, unsigned long *v1_in,
+		   unsigned long *v2_in, unsigned long *v3_in,
+		   unsigned long *v4_in);
+void xor_altivec_5(unsigned long bytes, unsigned long *v1_in,
+		   unsigned long *v2_in, unsigned long *v3_in,
+		   unsigned long *v4_in, unsigned long *v5_in);
+
+static struct xor_block_template xor_block_altivec = {
+	.name = "altivec",
+	.do_2 = xor_altivec_2,
+	.do_3 = xor_altivec_3,
+	.do_4 = xor_altivec_4,
+	.do_5 = xor_altivec_5,
+};
+
+#define XOR_SPEED_ALTIVEC()				\
+	do {						\
+		if (cpu_has_feature(CPU_FTR_ALTIVEC))	\
+			xor_speed(&xor_block_altivec);	\
+	} while (0)
+#else
+#define XOR_SPEED_ALTIVEC()
+#endif
+
+/* Also try the generic routines. */
 #include <asm-generic/xor.h>
+
+#undef XOR_TRY_TEMPLATES
+#define XOR_TRY_TEMPLATES				\
+do {							\
+	xor_speed(&xor_block_8regs);			\
+	xor_speed(&xor_block_8regs_p);			\
+	xor_speed(&xor_block_32regs);			\
+	xor_speed(&xor_block_32regs_p);			\
+	XOR_SPEED_ALTIVEC();				\
+} while (0)
+
+#endif /* _ASM_POWERPC_XOR_H */
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 5310132856c1..95a20e17dbff 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -39,3 +39,6 @@ obj-$(CONFIG_PPC_LIB_RHEAP) += rheap.o
 obj-y			+= code-patching.o
 obj-y			+= feature-fixups.o
 obj-$(CONFIG_FTR_FIXUP_SELFTEST) += feature-fixups-test.o
+
+obj-$(CONFIG_ALTIVEC)	+= xor_vmx.o
+CFLAGS_xor_vmx.o += -maltivec -mabi=altivec
diff --git a/arch/powerpc/lib/xor_vmx.c b/arch/powerpc/lib/xor_vmx.c
new file mode 100644
index 000000000000..e905f7c2ea7b
--- /dev/null
+++ b/arch/powerpc/lib/xor_vmx.c
@@ -0,0 +1,177 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2012
+ *
+ * Author: Anton Blanchard <anton@au.ibm.com>
+ */
+#include <altivec.h>
+
+#include <linux/preempt.h>
+#include <linux/export.h>
+#include <linux/sched.h>
+#include <asm/switch_to.h>
+
+typedef vector signed char unative_t;
+
+#define DEFINE(V)				\
+	unative_t *V = (unative_t *)V##_in;	\
+	unative_t V##_0, V##_1, V##_2, V##_3
+
+#define LOAD(V)			\
+	do {			\
+		V##_0 = V[0];	\
+		V##_1 = V[1];	\
+		V##_2 = V[2];	\
+		V##_3 = V[3];	\
+	} while (0)
+
+#define STORE(V)		\
+	do {			\
+		V[0] = V##_0;	\
+		V[1] = V##_1;	\
+		V[2] = V##_2;	\
+		V[3] = V##_3;	\
+	} while (0)
+
+#define XOR(V1, V2)					\
+	do {						\
+		V1##_0 = vec_xor(V1##_0, V2##_0);	\
+		V1##_1 = vec_xor(V1##_1, V2##_1);	\
+		V1##_2 = vec_xor(V1##_2, V2##_2);	\
+		V1##_3 = vec_xor(V1##_3, V2##_3);	\
+	} while (0)
+
+void xor_altivec_2(unsigned long bytes, unsigned long *v1_in,
+		   unsigned long *v2_in)
+{
+	DEFINE(v1);
+	DEFINE(v2);
+	unsigned long lines = bytes / (sizeof(unative_t)) / 4;
+
+	preempt_disable();
+	enable_kernel_altivec();
+
+	do {
+		LOAD(v1);
+		LOAD(v2);
+		XOR(v1, v2);
+		STORE(v1);
+
+		v1 += 4;
+		v2 += 4;
+	} while (--lines > 0);
+
+	preempt_enable();
+}
+EXPORT_SYMBOL(xor_altivec_2);
+
+void xor_altivec_3(unsigned long bytes, unsigned long *v1_in,
+		   unsigned long *v2_in, unsigned long *v3_in)
+{
+	DEFINE(v1);
+	DEFINE(v2);
+	DEFINE(v3);
+	unsigned long lines = bytes / (sizeof(unative_t)) / 4;
+
+	preempt_disable();
+	enable_kernel_altivec();
+
+	do {
+		LOAD(v1);
+		LOAD(v2);
+		LOAD(v3);
+		XOR(v1, v2);
+		XOR(v1, v3);
+		STORE(v1);
+
+		v1 += 4;
+		v2 += 4;
+		v3 += 4;
+	} while (--lines > 0);
+
+	preempt_enable();
+}
+EXPORT_SYMBOL(xor_altivec_3);
+
+void xor_altivec_4(unsigned long bytes, unsigned long *v1_in,
+		   unsigned long *v2_in, unsigned long *v3_in,
+		   unsigned long *v4_in)
+{
+	DEFINE(v1);
+	DEFINE(v2);
+	DEFINE(v3);
+	DEFINE(v4);
+	unsigned long lines = bytes / (sizeof(unative_t)) / 4;
+
+	preempt_disable();
+	enable_kernel_altivec();
+
+	do {
+		LOAD(v1);
+		LOAD(v2);
+		LOAD(v3);
+		LOAD(v4);
+		XOR(v1, v2);
+		XOR(v3, v4);
+		XOR(v1, v3);
+		STORE(v1);
+
+		v1 += 4;
+		v2 += 4;
+		v3 += 4;
+		v4 += 4;
+	} while (--lines > 0);
+
+	preempt_enable();
+}
+EXPORT_SYMBOL(xor_altivec_4);
+
+void xor_altivec_5(unsigned long bytes, unsigned long *v1_in,
+		   unsigned long *v2_in, unsigned long *v3_in,
+		   unsigned long *v4_in, unsigned long *v5_in)
+{
+	DEFINE(v1);
+	DEFINE(v2);
+	DEFINE(v3);
+	DEFINE(v4);
+	DEFINE(v5);
+	unsigned long lines = bytes / (sizeof(unative_t)) / 4;
+
+	preempt_disable();
+	enable_kernel_altivec();
+
+	do {
+		LOAD(v1);
+		LOAD(v2);
+		LOAD(v3);
+		LOAD(v4);
+		LOAD(v5);
+		XOR(v1, v2);
+		XOR(v3, v4);
+		XOR(v1, v5);
+		XOR(v1, v3);
+		STORE(v1);
+
+		v1 += 4;
+		v2 += 4;
+		v3 += 4;
+		v4 += 4;
+		v5 += 4;
+	} while (--lines > 0);
+
+	preempt_enable();
+}
+EXPORT_SYMBOL(xor_altivec_5);
-- 
cgit 


From 6f68b5e2c6c04e9cf0e3074f884da36957ce9aae Mon Sep 17 00:00:00 2001
From: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Date: Tue, 27 Aug 2013 15:09:52 +0530
Subject: powerpc/powernv: Create opal sysfs directory

Create /sys/firmware/opal directory. We wil use this
interface to fetch opal error logs, firmware update, etc.

Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/opal.h       |  3 +++
 arch/powerpc/platforms/powernv/opal.c | 19 +++++++++++++++++++
 2 files changed, 22 insertions(+)

diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index 4cc33ba1edd3..ee0efd2f2abc 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -601,6 +601,9 @@ typedef struct oppanel_line {
 	uint64_t 	line_len;
 } oppanel_line_t;
 
+/* /sys/firmware/opal */
+extern struct kobject *opal_kobj;
+
 /* API functions */
 int64_t opal_console_write(int64_t term_number, __be64 *length,
 			   const uint8_t *buffer);
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 09336f0c54c5..37f06580709a 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -17,11 +17,15 @@
 #include <linux/interrupt.h>
 #include <linux/notifier.h>
 #include <linux/slab.h>
+#include <linux/kobject.h>
 #include <asm/opal.h>
 #include <asm/firmware.h>
 
 #include "powernv.h"
 
+/* /sys/firmware/opal */
+struct kobject *opal_kobj;
+
 struct opal {
 	u64 base;
 	u64 entry;
@@ -375,6 +379,17 @@ static irqreturn_t opal_interrupt(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
+static int opal_sysfs_init(void)
+{
+	opal_kobj = kobject_create_and_add("opal", firmware_kobj);
+	if (!opal_kobj) {
+		pr_warn("kobject_create_and_add opal failed\n");
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
 static int __init opal_init(void)
 {
 	struct device_node *np, *consoles;
@@ -420,6 +435,10 @@ static int __init opal_init(void)
 				   " (0x%x)\n", rc, irq, hwirq);
 		opal_irqs[i] = irq;
 	}
+
+	/* Create "opal" kobject under /sys/firmware */
+	rc = opal_sysfs_init();
+
 	return 0;
 }
 subsys_initcall(opal_init);
-- 
cgit 


From 50bd6153d1a68354a0a0c8bca1fe949fa8875875 Mon Sep 17 00:00:00 2001
From: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Date: Thu, 24 Oct 2013 16:04:58 +0530
Subject: powerpc/powernv: Code update interface

Code update interface for powernv platform. This provides
sysfs interface to pass new image, validate, update and
commit images.

This patch includes:
  - Below OPAL APIs for code update
    - opal_validate_flash()
    - opal_manage_flash()
    - opal_update_flash()

  - Create below sysfs files under /sys/firmware/opal
    - image		: Interface to pass new FW image
    - validate_flash	: Validate candidate image
    - manage_flash	: Commit/Reject operations
    - update_flash	: Flash new candidate image

Updating Image:
  "update_flash" is an interface to indicate flash new FW.
It just passes image SG list to FW. Actual flashing is done
during system reboot time.

Note:
  - SG entry format:
    I have kept version number to keep this list similar to what
    PAPR is defined.

Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/opal.h                |   7 +
 arch/powerpc/platforms/powernv/Makefile        |   3 +-
 arch/powerpc/platforms/powernv/opal-flash.c    | 667 +++++++++++++++++++++++++
 arch/powerpc/platforms/powernv/opal-wrappers.S |   3 +
 arch/powerpc/platforms/powernv/opal.c          |   4 +
 5 files changed, 683 insertions(+), 1 deletion(-)
 create mode 100644 arch/powerpc/platforms/powernv/opal-flash.c

diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index ee0efd2f2abc..033c06be1d84 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -129,6 +129,9 @@ extern int opal_enter_rtas(struct rtas_args *args,
 #define OPAL_LPC_READ				67
 #define OPAL_LPC_WRITE				68
 #define OPAL_RETURN_CPU				69
+#define OPAL_FLASH_VALIDATE			76
+#define OPAL_FLASH_MANAGE			77
+#define OPAL_FLASH_UPDATE			78
 
 #ifndef __ASSEMBLY__
 
@@ -724,6 +727,9 @@ int64_t opal_lpc_write(uint32_t chip_id, enum OpalLPCAddressType addr_type,
 		       uint32_t addr, uint32_t data, uint32_t sz);
 int64_t opal_lpc_read(uint32_t chip_id, enum OpalLPCAddressType addr_type,
 		      uint32_t addr, uint32_t *data, uint32_t sz);
+int64_t opal_validate_flash(uint64_t buffer, uint32_t *size, uint32_t *result);
+int64_t opal_manage_flash(uint8_t op);
+int64_t opal_update_flash(uint64_t blk_list);
 
 /* Internal functions */
 extern int early_init_dt_scan_opal(unsigned long node, const char *uname, int depth, void *data);
@@ -752,6 +758,7 @@ extern int opal_set_rtc_time(struct rtc_time *tm);
 extern void opal_get_rtc_time(struct rtc_time *tm);
 extern unsigned long opal_get_boot_time(void);
 extern void opal_nvram_init(void);
+extern void opal_flash_init(void);
 
 extern int opal_machine_check(struct pt_regs *regs);
 
diff --git a/arch/powerpc/platforms/powernv/Makefile b/arch/powerpc/platforms/powernv/Makefile
index 050d57e0c788..873fa1370dc4 100644
--- a/arch/powerpc/platforms/powernv/Makefile
+++ b/arch/powerpc/platforms/powernv/Makefile
@@ -1,5 +1,6 @@
 obj-y			+= setup.o opal-takeover.o opal-wrappers.o opal.o
-obj-y			+= opal-rtc.o opal-nvram.o opal-lpc.o rng.o
+obj-y			+= opal-rtc.o opal-nvram.o opal-lpc.o opal-flash.o
+obj-y			+= rng.o
 
 obj-$(CONFIG_SMP)	+= smp.o
 obj-$(CONFIG_PCI)	+= pci.o pci-p5ioc2.o pci-ioda.o
diff --git a/arch/powerpc/platforms/powernv/opal-flash.c b/arch/powerpc/platforms/powernv/opal-flash.c
new file mode 100644
index 000000000000..6ffa6b1ec5b7
--- /dev/null
+++ b/arch/powerpc/platforms/powernv/opal-flash.c
@@ -0,0 +1,667 @@
+/*
+ * PowerNV OPAL Firmware Update Interface
+ *
+ * Copyright 2013 IBM Corp.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#define DEBUG
+
+#include <linux/kernel.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/kobject.h>
+#include <linux/sysfs.h>
+#include <linux/slab.h>
+#include <linux/mm.h>
+#include <linux/vmalloc.h>
+#include <linux/pagemap.h>
+
+#include <asm/opal.h>
+
+/* FLASH status codes */
+#define FLASH_NO_OP		-1099	/* No operation initiated by user */
+#define FLASH_NO_AUTH		-9002	/* Not a service authority partition */
+
+/* Validate image status values */
+#define VALIDATE_IMG_READY	-1001	/* Image ready for validation */
+#define VALIDATE_IMG_INCOMPLETE	-1002	/* User copied < VALIDATE_BUF_SIZE */
+
+/* Manage image status values */
+#define MANAGE_ACTIVE_ERR	-9001	/* Cannot overwrite active img */
+
+/* Flash image status values */
+#define FLASH_IMG_READY		0	/* Img ready for flash on reboot */
+#define FLASH_INVALID_IMG	-1003	/* Flash image shorter than expected */
+#define FLASH_IMG_NULL_DATA	-1004	/* Bad data in sg list entry */
+#define FLASH_IMG_BAD_LEN	-1005	/* Bad length in sg list entry */
+
+/* Manage operation tokens */
+#define FLASH_REJECT_TMP_SIDE	0	/* Reject temporary fw image */
+#define FLASH_COMMIT_TMP_SIDE	1	/* Commit temporary fw image */
+
+/* Update tokens */
+#define FLASH_UPDATE_CANCEL	0	/* Cancel update request */
+#define FLASH_UPDATE_INIT	1	/* Initiate update */
+
+/* Validate image update result tokens */
+#define VALIDATE_TMP_UPDATE	0     /* T side will be updated */
+#define VALIDATE_FLASH_AUTH	1     /* Partition does not have authority */
+#define VALIDATE_INVALID_IMG	2     /* Candidate image is not valid */
+#define VALIDATE_CUR_UNKNOWN	3     /* Current fixpack level is unknown */
+/*
+ * Current T side will be committed to P side before being replace with new
+ * image, and the new image is downlevel from current image
+ */
+#define VALIDATE_TMP_COMMIT_DL	4
+/*
+ * Current T side will be committed to P side before being replaced with new
+ * image
+ */
+#define VALIDATE_TMP_COMMIT	5
+/*
+ * T side will be updated with a downlevel image
+ */
+#define VALIDATE_TMP_UPDATE_DL	6
+/*
+ * The candidate image's release date is later than the system's firmware
+ * service entitlement date - service warranty period has expired
+ */
+#define VALIDATE_OUT_OF_WRNTY	7
+
+/* Validate buffer size */
+#define VALIDATE_BUF_SIZE	4096
+
+/* XXX: Assume candidate image size is <= 256MB */
+#define MAX_IMAGE_SIZE	0x10000000
+
+/* Flash sg list version */
+#define SG_LIST_VERSION (1UL)
+
+/* Image status */
+enum {
+	IMAGE_INVALID,
+	IMAGE_LOADING,
+	IMAGE_READY,
+};
+
+/* Candidate image data */
+struct image_data_t {
+	int		status;
+	void		*data;
+	uint32_t	size;
+};
+
+/* Candidate image header */
+struct image_header_t {
+	uint16_t	magic;
+	uint16_t	version;
+	uint32_t	size;
+};
+
+/* Scatter/gather entry */
+struct opal_sg_entry {
+	void	*data;
+	long	length;
+};
+
+/* We calculate number of entries based on PAGE_SIZE */
+#define SG_ENTRIES_PER_NODE ((PAGE_SIZE - 16) / sizeof(struct opal_sg_entry))
+
+/*
+ * This struct is very similar but not identical to that
+ * needed by the opal flash update. All we need to do for
+ * opal is rewrite num_entries into a version/length and
+ * translate the pointers to absolute.
+ */
+struct opal_sg_list {
+	unsigned long num_entries;
+	struct opal_sg_list *next;
+	struct opal_sg_entry entry[SG_ENTRIES_PER_NODE];
+};
+
+struct validate_flash_t {
+	int		status;		/* Return status */
+	void		*buf;		/* Candiate image buffer */
+	uint32_t	buf_size;	/* Image size */
+	uint32_t	result;		/* Update results token */
+};
+
+struct manage_flash_t {
+	int status;		/* Return status */
+};
+
+struct update_flash_t {
+	int status;		/* Return status */
+};
+
+static struct image_header_t	image_header;
+static struct image_data_t	image_data;
+static struct validate_flash_t	validate_flash_data;
+static struct manage_flash_t	manage_flash_data;
+static struct update_flash_t	update_flash_data;
+
+static DEFINE_MUTEX(image_data_mutex);
+
+/*
+ * Validate candidate image
+ */
+static inline void opal_flash_validate(void)
+{
+	struct validate_flash_t *args_buf = &validate_flash_data;
+
+	args_buf->status = opal_validate_flash(__pa(args_buf->buf),
+					       &(args_buf->buf_size),
+					       &(args_buf->result));
+}
+
+/*
+ * Validate output format:
+ *     validate result token
+ *     current image version details
+ *     new image version details
+ */
+static ssize_t validate_show(struct kobject *kobj,
+			     struct kobj_attribute *attr, char *buf)
+{
+	struct validate_flash_t *args_buf = &validate_flash_data;
+	int len;
+
+	/* Candidate image is not validated */
+	if (args_buf->status < VALIDATE_TMP_UPDATE) {
+		len = sprintf(buf, "%d\n", args_buf->status);
+		goto out;
+	}
+
+	/* Result token */
+	len = sprintf(buf, "%d\n", args_buf->result);
+
+	/* Current and candidate image version details */
+	if ((args_buf->result != VALIDATE_TMP_UPDATE) &&
+	    (args_buf->result < VALIDATE_CUR_UNKNOWN))
+		goto out;
+
+	if (args_buf->buf_size > (VALIDATE_BUF_SIZE - len)) {
+		memcpy(buf + len, args_buf->buf, VALIDATE_BUF_SIZE - len);
+		len = VALIDATE_BUF_SIZE;
+	} else {
+		memcpy(buf + len, args_buf->buf, args_buf->buf_size);
+		len += args_buf->buf_size;
+	}
+out:
+	/* Set status to default */
+	args_buf->status = FLASH_NO_OP;
+	return len;
+}
+
+/*
+ * Validate candidate firmware image
+ *
+ * Note:
+ *   We are only interested in first 4K bytes of the
+ *   candidate image.
+ */
+static ssize_t validate_store(struct kobject *kobj,
+			      struct kobj_attribute *attr,
+			      const char *buf, size_t count)
+{
+	struct validate_flash_t *args_buf = &validate_flash_data;
+
+	if (buf[0] != '1')
+		return -EINVAL;
+
+	mutex_lock(&image_data_mutex);
+
+	if (image_data.status != IMAGE_READY ||
+	    image_data.size < VALIDATE_BUF_SIZE) {
+		args_buf->result = VALIDATE_INVALID_IMG;
+		args_buf->status = VALIDATE_IMG_INCOMPLETE;
+		goto out;
+	}
+
+	/* Copy first 4k bytes of candidate image */
+	memcpy(args_buf->buf, image_data.data, VALIDATE_BUF_SIZE);
+
+	args_buf->status = VALIDATE_IMG_READY;
+	args_buf->buf_size = VALIDATE_BUF_SIZE;
+
+	/* Validate candidate image */
+	opal_flash_validate();
+
+out:
+	mutex_unlock(&image_data_mutex);
+	return count;
+}
+
+/*
+ * Manage flash routine
+ */
+static inline void opal_flash_manage(uint8_t op)
+{
+	struct manage_flash_t *const args_buf = &manage_flash_data;
+
+	args_buf->status = opal_manage_flash(op);
+}
+
+/*
+ * Show manage flash status
+ */
+static ssize_t manage_show(struct kobject *kobj,
+			   struct kobj_attribute *attr, char *buf)
+{
+	struct manage_flash_t *const args_buf = &manage_flash_data;
+	int rc;
+
+	rc = sprintf(buf, "%d\n", args_buf->status);
+	/* Set status to default*/
+	args_buf->status = FLASH_NO_OP;
+	return rc;
+}
+
+/*
+ * Manage operations:
+ *   0 - Reject
+ *   1 - Commit
+ */
+static ssize_t manage_store(struct kobject *kobj,
+			    struct kobj_attribute *attr,
+			    const char *buf, size_t count)
+{
+	uint8_t op;
+	switch (buf[0]) {
+	case '0':
+		op = FLASH_REJECT_TMP_SIDE;
+		break;
+	case '1':
+		op = FLASH_COMMIT_TMP_SIDE;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	/* commit/reject temporary image */
+	opal_flash_manage(op);
+	return count;
+}
+
+/*
+ * Free sg list
+ */
+static void free_sg_list(struct opal_sg_list *list)
+{
+	struct opal_sg_list *sg1;
+	while (list) {
+		sg1 = list->next;
+		kfree(list);
+		list = sg1;
+	}
+	list = NULL;
+}
+
+/*
+ * Build candidate image scatter gather list
+ *
+ * list format:
+ *   -----------------------------------
+ *  |  VER (8) | Entry length in bytes  |
+ *   -----------------------------------
+ *  |  Pointer to next entry            |
+ *   -----------------------------------
+ *  |  Address of memory area 1         |
+ *   -----------------------------------
+ *  |  Length of memory area 1          |
+ *   -----------------------------------
+ *  |   .........                       |
+ *   -----------------------------------
+ *  |   .........                       |
+ *   -----------------------------------
+ *  |  Address of memory area N         |
+ *   -----------------------------------
+ *  |  Length of memory area N          |
+ *   -----------------------------------
+ */
+static struct opal_sg_list *image_data_to_sglist(void)
+{
+	struct opal_sg_list *sg1, *list = NULL;
+	void *addr;
+	int size;
+
+	addr = image_data.data;
+	size = image_data.size;
+
+	sg1 = kzalloc((sizeof(struct opal_sg_list)), GFP_KERNEL);
+	if (!sg1)
+		return NULL;
+
+	list = sg1;
+	sg1->num_entries = 0;
+	while (size > 0) {
+		/* Translate virtual address to physical address */
+		sg1->entry[sg1->num_entries].data =
+			(void *)(vmalloc_to_pfn(addr) << PAGE_SHIFT);
+
+		if (size > PAGE_SIZE)
+			sg1->entry[sg1->num_entries].length = PAGE_SIZE;
+		else
+			sg1->entry[sg1->num_entries].length = size;
+
+		sg1->num_entries++;
+		if (sg1->num_entries >= SG_ENTRIES_PER_NODE) {
+			sg1->next = kzalloc((sizeof(struct opal_sg_list)),
+					    GFP_KERNEL);
+			if (!sg1->next) {
+				pr_err("%s : Failed to allocate memory\n",
+				       __func__);
+				goto nomem;
+			}
+
+			sg1 = sg1->next;
+			sg1->num_entries = 0;
+		}
+		addr += PAGE_SIZE;
+		size -= PAGE_SIZE;
+	}
+	return list;
+nomem:
+	free_sg_list(list);
+	return NULL;
+}
+
+/*
+ * OPAL update flash
+ */
+static int opal_flash_update(int op)
+{
+	struct opal_sg_list *sg, *list, *next;
+	unsigned long addr;
+	int64_t rc = OPAL_PARAMETER;
+
+	if (op == FLASH_UPDATE_CANCEL) {
+		pr_alert("FLASH: Image update cancelled\n");
+		addr = '\0';
+		goto flash;
+	}
+
+	list = image_data_to_sglist();
+	if (!list)
+		goto invalid_img;
+
+	/* First entry address */
+	addr = __pa(list);
+
+	/* Translate sg list address to absolute */
+	for (sg = list; sg; sg = next) {
+		next = sg->next;
+		/* Don't translate NULL pointer for last entry */
+		if (sg->next)
+			sg->next = (struct opal_sg_list *)__pa(sg->next);
+		else
+			sg->next = NULL;
+
+		/* Make num_entries into the version/length field */
+		sg->num_entries = (SG_LIST_VERSION << 56) |
+			(sg->num_entries * sizeof(struct opal_sg_entry) + 16);
+	}
+
+	pr_alert("FLASH: Image is %u bytes\n", image_data.size);
+	pr_alert("FLASH: Image update requested\n");
+	pr_alert("FLASH: Image will be updated during system reboot\n");
+	pr_alert("FLASH: This will take several minutes. Do not power off!\n");
+
+flash:
+	rc = opal_update_flash(addr);
+
+invalid_img:
+	return rc;
+}
+
+/*
+ * Show candidate image status
+ */
+static ssize_t update_show(struct kobject *kobj,
+			   struct kobj_attribute *attr, char *buf)
+{
+	struct update_flash_t *const args_buf = &update_flash_data;
+	return sprintf(buf, "%d\n", args_buf->status);
+}
+
+/*
+ * Set update image flag
+ *  1 - Flash new image
+ *  0 - Cancel flash request
+ */
+static ssize_t update_store(struct kobject *kobj,
+			    struct kobj_attribute *attr,
+			    const char *buf, size_t count)
+{
+	struct update_flash_t *const args_buf = &update_flash_data;
+	int rc = count;
+
+	mutex_lock(&image_data_mutex);
+
+	switch (buf[0]) {
+	case '0':
+		if (args_buf->status == FLASH_IMG_READY)
+			opal_flash_update(FLASH_UPDATE_CANCEL);
+		args_buf->status = FLASH_NO_OP;
+		break;
+	case '1':
+		/* Image is loaded? */
+		if (image_data.status == IMAGE_READY)
+			args_buf->status =
+				opal_flash_update(FLASH_UPDATE_INIT);
+		else
+			args_buf->status = FLASH_INVALID_IMG;
+		break;
+	default:
+		rc = -EINVAL;
+	}
+
+	mutex_unlock(&image_data_mutex);
+	return rc;
+}
+
+/*
+ * Free image buffer
+ */
+static void free_image_buf(void)
+{
+	void *addr;
+	int size;
+
+	addr = image_data.data;
+	size = PAGE_ALIGN(image_data.size);
+	while (size > 0) {
+		ClearPageReserved(vmalloc_to_page(addr));
+		addr += PAGE_SIZE;
+		size -= PAGE_SIZE;
+	}
+	vfree(image_data.data);
+	image_data.data = NULL;
+	image_data.status = IMAGE_INVALID;
+}
+
+/*
+ * Allocate image buffer.
+ */
+static int alloc_image_buf(char *buffer, size_t count)
+{
+	void *addr;
+	int size;
+
+	if (count < sizeof(struct image_header_t)) {
+		pr_warn("FLASH: Invalid candidate image\n");
+		return -EINVAL;
+	}
+
+	memcpy(&image_header, (void *)buffer, sizeof(struct image_header_t));
+	image_data.size = be32_to_cpu(image_header.size);
+	pr_debug("FLASH: Candiate image size = %u\n", image_data.size);
+
+	if (image_data.size > MAX_IMAGE_SIZE) {
+		pr_warn("FLASH: Too large image\n");
+		return -EINVAL;
+	}
+	if (image_data.size < VALIDATE_BUF_SIZE) {
+		pr_warn("FLASH: Image is shorter than expected\n");
+		return -EINVAL;
+	}
+
+	image_data.data = vzalloc(PAGE_ALIGN(image_data.size));
+	if (!image_data.data) {
+		pr_err("%s : Failed to allocate memory\n", __func__);
+		return -ENOMEM;
+	}
+
+	/* Pin memory */
+	addr = image_data.data;
+	size = PAGE_ALIGN(image_data.size);
+	while (size > 0) {
+		SetPageReserved(vmalloc_to_page(addr));
+		addr += PAGE_SIZE;
+		size -= PAGE_SIZE;
+	}
+
+	image_data.status = IMAGE_LOADING;
+	return 0;
+}
+
+/*
+ * Copy candidate image
+ *
+ * Parse candidate image header to get total image size
+ * and pre-allocate required memory.
+ */
+static ssize_t image_data_write(struct file *filp, struct kobject *kobj,
+				struct bin_attribute *bin_attr,
+				char *buffer, loff_t pos, size_t count)
+{
+	int rc;
+
+	mutex_lock(&image_data_mutex);
+
+	/* New image ? */
+	if (pos == 0) {
+		/* Free memory, if already allocated */
+		if (image_data.data)
+			free_image_buf();
+
+		/* Cancel outstanding image update request */
+		if (update_flash_data.status == FLASH_IMG_READY)
+			opal_flash_update(FLASH_UPDATE_CANCEL);
+
+		/* Allocate memory */
+		rc = alloc_image_buf(buffer, count);
+		if (rc)
+			goto out;
+	}
+
+	if (image_data.status != IMAGE_LOADING) {
+		rc = -ENOMEM;
+		goto out;
+	}
+
+	if ((pos + count) > image_data.size) {
+		rc = -EINVAL;
+		goto out;
+	}
+
+	memcpy(image_data.data + pos, (void *)buffer, count);
+	rc = count;
+
+	/* Set image status */
+	if ((pos + count) == image_data.size) {
+		pr_debug("FLASH: Candidate image loaded....\n");
+		image_data.status = IMAGE_READY;
+	}
+
+out:
+	mutex_unlock(&image_data_mutex);
+	return rc;
+}
+
+/*
+ * sysfs interface :
+ *  OPAL uses below sysfs files for code update.
+ *  We create these files under /sys/firmware/opal.
+ *
+ *   image		: Interface to load candidate firmware image
+ *   validate_flash	: Validate firmware image
+ *   manage_flash	: Commit/Reject firmware image
+ *   update_flash	: Flash new firmware image
+ *
+ */
+static struct bin_attribute image_data_attr = {
+	.attr = {.name = "image", .mode = 0200},
+	.size = MAX_IMAGE_SIZE,	/* Limit image size */
+	.write = image_data_write,
+};
+
+static struct kobj_attribute validate_attribute =
+	__ATTR(validate_flash, 0600, validate_show, validate_store);
+
+static struct kobj_attribute manage_attribute =
+	__ATTR(manage_flash, 0600, manage_show, manage_store);
+
+static struct kobj_attribute update_attribute =
+	__ATTR(update_flash, 0600, update_show, update_store);
+
+static struct attribute *image_op_attrs[] = {
+	&validate_attribute.attr,
+	&manage_attribute.attr,
+	&update_attribute.attr,
+	NULL	/* need to NULL terminate the list of attributes */
+};
+
+static struct attribute_group image_op_attr_group = {
+	.attrs = image_op_attrs,
+};
+
+void __init opal_flash_init(void)
+{
+	int ret;
+
+	/* Allocate validate image buffer */
+	validate_flash_data.buf = kzalloc(VALIDATE_BUF_SIZE, GFP_KERNEL);
+	if (!validate_flash_data.buf) {
+		pr_err("%s : Failed to allocate memory\n", __func__);
+		return;
+	}
+
+	/* Make sure /sys/firmware/opal directory is created */
+	if (!opal_kobj) {
+		pr_warn("FLASH: opal kobject is not available\n");
+		goto nokobj;
+	}
+
+	/* Create the sysfs files */
+	ret = sysfs_create_group(opal_kobj, &image_op_attr_group);
+	if (ret) {
+		pr_warn("FLASH: Failed to create sysfs files\n");
+		goto nokobj;
+	}
+
+	ret = sysfs_create_bin_file(opal_kobj, &image_data_attr);
+	if (ret) {
+		pr_warn("FLASH: Failed to create sysfs files\n");
+		goto nosysfs_file;
+	}
+
+	/* Set default status */
+	validate_flash_data.status = FLASH_NO_OP;
+	manage_flash_data.status = FLASH_NO_OP;
+	update_flash_data.status = FLASH_NO_OP;
+	image_data.status = IMAGE_INVALID;
+	return;
+
+nosysfs_file:
+	sysfs_remove_group(opal_kobj, &image_op_attr_group);
+
+nokobj:
+	kfree(validate_flash_data.buf);
+	return;
+}
diff --git a/arch/powerpc/platforms/powernv/opal-wrappers.S b/arch/powerpc/platforms/powernv/opal-wrappers.S
index 403d05840625..e7806504e976 100644
--- a/arch/powerpc/platforms/powernv/opal-wrappers.S
+++ b/arch/powerpc/platforms/powernv/opal-wrappers.S
@@ -123,3 +123,6 @@ OPAL_CALL(opal_xscom_write,			OPAL_XSCOM_WRITE);
 OPAL_CALL(opal_lpc_read,			OPAL_LPC_READ);
 OPAL_CALL(opal_lpc_write,			OPAL_LPC_WRITE);
 OPAL_CALL(opal_return_cpu,			OPAL_RETURN_CPU);
+OPAL_CALL(opal_validate_flash,			OPAL_FLASH_VALIDATE);
+OPAL_CALL(opal_manage_flash,			OPAL_FLASH_MANAGE);
+OPAL_CALL(opal_update_flash,			OPAL_FLASH_UPDATE);
diff --git a/arch/powerpc/platforms/powernv/opal.c b/arch/powerpc/platforms/powernv/opal.c
index 37f06580709a..b56c243aaee9 100644
--- a/arch/powerpc/platforms/powernv/opal.c
+++ b/arch/powerpc/platforms/powernv/opal.c
@@ -438,6 +438,10 @@ static int __init opal_init(void)
 
 	/* Create "opal" kobject under /sys/firmware */
 	rc = opal_sysfs_init();
+	if (rc == 0) {
+		/* Setup code update interface */
+		opal_flash_init();
+	}
 
 	return 0;
 }
-- 
cgit 


From badb92389870e5d20ff8155e8582b29533239e4f Mon Sep 17 00:00:00 2001
From: Christian Daudt <bcm@fixthebug.org>
Date: Mon, 23 Sep 2013 10:20:33 -0700
Subject: rename ARCH_BCM to ARCH_BCM_MOBILE (mach-bcm)

Currently ARCH_BCM has been used for Broadcom
Mobile V7 based SoCs. In order to allow other Broadcom
SoCs to also use mach-bcm directory and files, this patch
renames the original ARCH_BCM to ARCH_BCM_MOBILE, and
uses ARCH_BCM to define any Broadcom chip residing
in mach-bcm directory.

Signed-off-by: Christian Daudt <bcm@fixthebug.org>
Acked-by: Olof Johansson <olof@lixom.net>

Changes from v2:
 - switch ARCH_MULTIPLATFORM from select to depends
 - remove 'default y' from BCM_MOBILE

Changes from v1:
 - fix alpha ordering in dts/Makefile
 - break into 4 patches for separate subsys
---
 arch/arm/configs/bcm_defconfig      |  1 +
 arch/arm/configs/multi_v7_defconfig |  1 +
 arch/arm/mach-bcm/Kconfig           | 19 +++++++++++++++++--
 arch/arm/mach-bcm/Makefile          |  2 +-
 4 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/arch/arm/configs/bcm_defconfig b/arch/arm/configs/bcm_defconfig
index 6e4931097dd4..efb01325030a 100644
--- a/arch/arm/configs/bcm_defconfig
+++ b/arch/arm/configs/bcm_defconfig
@@ -27,6 +27,7 @@ CONFIG_MODULE_UNLOAD=y
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_EFI_PARTITION=y
 CONFIG_ARCH_BCM=y
+CONFIG_ARCH_BCM_MOBILE=y
 CONFIG_ARM_THUMBEE=y
 CONFIG_ARM_ERRATA_743622=y
 CONFIG_PREEMPT=y
diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index f3935b46df29..24a36e3cb75e 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -6,6 +6,7 @@ CONFIG_ARCH_MVEBU=y
 CONFIG_MACH_ARMADA_370=y
 CONFIG_MACH_ARMADA_XP=y
 CONFIG_ARCH_BCM=y
+CONFIG_ARCH_BCM_MOBILE=y
 CONFIG_GPIO_PCA953X=y
 CONFIG_ARCH_HIGHBANK=y
 CONFIG_ARCH_KEYSTONE=y
diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
index 7f6fca801669..01ca25981cc2 100644
--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -1,5 +1,16 @@
 config ARCH_BCM
-	bool "Broadcom SoC" if ARCH_MULTI_V7
+	bool "Broadcom SoC Support"
+	depends on ARCH_MULTIPLATFORM
+	help
+	  This enables support for Broadcom ARM based SoC
+          chips
+
+if ARCH_BCM
+
+menu "Broadcom SoC Selection"
+
+config ARCH_BCM_MOBILE
+	bool "Broadcom Mobile SoC" if ARCH_MULTI_V7
 	depends on MMU
 	select ARCH_REQUIRE_GPIOLIB
 	select ARM_ERRATA_754322
@@ -14,7 +25,11 @@ config ARCH_BCM
 	select TICK_ONESHOT
 	select CACHE_L2X0
 	help
-	  This enables support for system based on Broadcom SoCs.
+	  This enables support for systems based on Broadcom mobile SoCs.
 	  It currently supports the 'BCM281XX' family, which includes
 	  BCM11130, BCM11140, BCM11351, BCM28145 and
 	  BCM28155 variants.
+
+endmenu
+
+endif
diff --git a/arch/arm/mach-bcm/Makefile b/arch/arm/mach-bcm/Makefile
index e3d03033a7e2..c2ccd5a0f772 100644
--- a/arch/arm/mach-bcm/Makefile
+++ b/arch/arm/mach-bcm/Makefile
@@ -10,6 +10,6 @@
 # of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 # GNU General Public License for more details.
 
-obj-$(CONFIG_ARCH_BCM)		:= board_bcm281xx.o bcm_kona_smc.o bcm_kona_smc_asm.o kona.o
+obj-$(CONFIG_ARCH_BCM_MOBILE)	:= board_bcm281xx.o bcm_kona_smc.o bcm_kona_smc_asm.o kona.o
 plus_sec := $(call as-instr,.arch_extension sec,+sec)
 AFLAGS_bcm_kona_smc_asm.o	:=-Wa,-march=armv7-a$(plus_sec)
-- 
cgit 


From e84dfa26a02ad75a331305baafcf14645fdfc76e Mon Sep 17 00:00:00 2001
From: Christian Daudt <csd@broadcom.com>
Date: Tue, 24 Sep 2013 13:20:52 -0700
Subject: ARM: bcm281xx: Add ARCH Timers to config

Add HAVE_ARM_ARCH_TIMER to Broadcom Kconfig as it is
required for some Mobile SoCs.

Signed-off-by: Christian Daudt <bcm@fixthebug.org>
Reviewed-by: Markus Mayer <mmayer@broadcom.com>
Reviewed-by: Mark Hambleton <mahamble@broadcom.com>
Reviewed-by: James King <jamesk@broadcom.com>
---
 arch/arm/mach-bcm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
index 01ca25981cc2..9fe6d88737ed 100644
--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -24,6 +24,7 @@ config ARCH_BCM_MOBILE
 	select SPARSE_IRQ
 	select TICK_ONESHOT
 	select CACHE_L2X0
+	select HAVE_ARM_ARCH_TIMER
 	help
 	  This enables support for systems based on Broadcom mobile SoCs.
 	  It currently supports the 'BCM281XX' family, which includes
-- 
cgit 


From 2d58b26550ad5d869118c77b3db8feb942e54be0 Mon Sep 17 00:00:00 2001
From: Tim Kryger <tim.kryger@linaro.org>
Date: Mon, 14 Oct 2013 14:41:59 -0700
Subject: ARM: bcm_defconfig: Run "make savedefconfig"

Several of the options in bcm_defconfig have gotten out of date so
regenerate it with "make savedefconfig" to keep things fresh.

Signed-off-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Matt Porter <matt.porter@linaro.org>
---
 arch/arm/configs/bcm_defconfig | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/arch/arm/configs/bcm_defconfig b/arch/arm/configs/bcm_defconfig
index efb01325030a..3a138af6e2fb 100644
--- a/arch/arm/configs/bcm_defconfig
+++ b/arch/arm/configs/bcm_defconfig
@@ -1,4 +1,3 @@
-CONFIG_EXPERIMENTAL=y
 # CONFIG_LOCALVERSION_AUTO is not set
 # CONFIG_SWAP is not set
 CONFIG_SYSVIPC=y
@@ -25,11 +24,8 @@ CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_PARTITION_ADVANCED=y
-CONFIG_EFI_PARTITION=y
 CONFIG_ARCH_BCM=y
-CONFIG_ARCH_BCM_MOBILE=y
 CONFIG_ARM_THUMBEE=y
-CONFIG_ARM_ERRATA_743622=y
 CONFIG_PREEMPT=y
 CONFIG_AEABI=y
 # CONFIG_OABI_COMPAT is not set
@@ -51,7 +47,6 @@ CONFIG_UNIX_DIAG=y
 CONFIG_NET_KEY=y
 CONFIG_INET=y
 CONFIG_IP_MULTICAST=y
-CONFIG_ARPD=y
 CONFIG_SYN_COOKIES=y
 CONFIG_TCP_MD5SIG=y
 CONFIG_IPV6=y
@@ -96,7 +91,6 @@ CONFIG_MMC_UNSAFE_RESUME=y
 CONFIG_MMC_BLOCK_MINORS=32
 CONFIG_MMC_TEST=y
 CONFIG_MMC_SDHCI=y
-CONFIG_MMC_SDHCI_PLTFM=y
 CONFIG_MMC_SDHCI_BCM_KONA=y
 CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
@@ -118,12 +112,12 @@ CONFIG_CONFIGFS_FS=y
 CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_ISO8859_1=y
 CONFIG_PRINTK_TIME=y
-CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_INFO=y
 CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
 CONFIG_DETECT_HUNG_TASK=y
 CONFIG_DEFAULT_HUNG_TASK_TIMEOUT=110
 CONFIG_BOOTPARAM_HUNG_TASK_PANIC=y
-CONFIG_DEBUG_INFO=y
 # CONFIG_FTRACE is not set
 CONFIG_CRC_CCITT=y
 CONFIG_CRC_T10DIF=y
-- 
cgit 


From d2e92709e88d97c001b6bb96054ecb06d99d0dc6 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 30 Oct 2013 07:50:53 +0100
Subject: ALSA: hda - Disable AA-loopback on ALC283 Chromebook

ALC283-based Chromebook suffers from occasional white noise, and it
turned out that this comes from AA-loopback.  Disable this output path
by just clearing mixer_nid, then the generic parser will skip the
creation of AA-loopback path.

Reported-and-tested-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 894703532ab7..c516fa93ee63 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3445,6 +3445,8 @@ static void alc283_fixup_chromebook(struct hda_codec *codec,
 	switch (action) {
 	case HDA_FIXUP_ACT_PRE_PROBE:
 		alc283_chromebook_caps(codec);
+		/* Disable AA-loopback as it causes white noise */
+		spec->gen.mixer_nid = 0;
 		spec->gen.hp_automute_hook = alc283_hp_automute_hook;
 		/* MIC2-VREF control */
 		/* Set to manual mode */
-- 
cgit 


From 498f6d3660e8c3343b26a5f8e2707b642bcf3fc8 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Wed, 2 Oct 2013 16:58:38 +0200
Subject: simplefb: fix unmapping fb during destruction

Unfortunately, fbdev does not create its own "struct device" for
framebuffers. Instead, it attaches to the device of the parent layer. This
has the side-effect that devm_* managed resources are not cleaned up on
framebuffer-destruction but rather during destruction of the
parent-device. In case of fbdev this might be too late, though.
remove_conflicting_framebuffer() may remove fbdev devices but keep the
parent device as it is.

Therefore, we now use plain ioremap() and unmap the framebuffer in the
fb_destroy() callback. Note that we must not free the device here as this
might race with the parent-device removal. Instead, we rely on
unregister_framebuffer() as barrier and we're safe.

Reported-by: Tom Gundersen <teg@jklm.no>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/simplefb.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/video/simplefb.c b/drivers/video/simplefb.c
index 08c764cfeff3..129ab19732c7 100644
--- a/drivers/video/simplefb.c
+++ b/drivers/video/simplefb.c
@@ -66,8 +66,15 @@ static int simplefb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
 	return 0;
 }
 
+static void simplefb_destroy(struct fb_info *info)
+{
+	if (info->screen_base)
+		iounmap(info->screen_base);
+}
+
 static struct fb_ops simplefb_ops = {
 	.owner		= THIS_MODULE,
+	.fb_destroy	= simplefb_destroy,
 	.fb_setcolreg	= simplefb_setcolreg,
 	.fb_fillrect	= cfb_fillrect,
 	.fb_copyarea	= cfb_copyarea,
@@ -212,8 +219,8 @@ static int simplefb_probe(struct platform_device *pdev)
 
 	info->fbops = &simplefb_ops;
 	info->flags = FBINFO_DEFAULT | FBINFO_MISC_FIRMWARE;
-	info->screen_base = devm_ioremap(&pdev->dev, info->fix.smem_start,
-					 info->fix.smem_len);
+	info->screen_base = ioremap(info->fix.smem_start,
+				    info->fix.smem_len);
 	if (!info->screen_base) {
 		framebuffer_release(info);
 		return -ENODEV;
@@ -231,6 +238,7 @@ static int simplefb_probe(struct platform_device *pdev)
 	ret = register_framebuffer(info);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Unable to register simplefb: %d\n", ret);
+		iounmap(info->screen_base);
 		framebuffer_release(info);
 		return ret;
 	}
-- 
cgit 


From 9e210be68a396da0f1d030289c323f1785f29d33 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Wed, 2 Oct 2013 16:58:39 +0200
Subject: simplefb: use write-combined remapping

Framebuffers shouldn't be cached and it is usually very uncommon to read
them. Therefore, use ioremap_wc() to get significant speed improvements on
systems which provide it. On all other systems it's aliased to
ioremap_nocache() which is also fine.

Reported-by: Tom Gundersen <teg@jklm.no>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Tested-by: Tom Gundersen <teg@jklm.no>
Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/simplefb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/simplefb.c b/drivers/video/simplefb.c
index 129ab19732c7..210f3a02121a 100644
--- a/drivers/video/simplefb.c
+++ b/drivers/video/simplefb.c
@@ -219,8 +219,8 @@ static int simplefb_probe(struct platform_device *pdev)
 
 	info->fbops = &simplefb_ops;
 	info->flags = FBINFO_DEFAULT | FBINFO_MISC_FIRMWARE;
-	info->screen_base = ioremap(info->fix.smem_start,
-				    info->fix.smem_len);
+	info->screen_base = ioremap_wc(info->fix.smem_start,
+				       info->fix.smem_len);
 	if (!info->screen_base) {
 		framebuffer_release(info);
 		return -ENODEV;
-- 
cgit 


From 2eaf6b5dcafda2b8c22930eff7f48a364fce1741 Mon Sep 17 00:00:00 2001
From: Josh Boyer <jwboyer@redhat.com>
Date: Wed, 30 Oct 2013 11:15:23 +0000
Subject: KEYS: Make BIG_KEYS boolean

Having the big_keys functionality as a module is very marginally useful.
The userspace code that would use this functionality will get odd error
messages from the keys layer if the module isn't loaded.  The code itself
is fairly small, so just have this as a boolean option and not a tristate.

Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: David Howells <dhowells@redhat.com>
---
 security/keys/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/security/keys/Kconfig b/security/keys/Kconfig
index 53d8748c9564..a4f3f8c48d6e 100644
--- a/security/keys/Kconfig
+++ b/security/keys/Kconfig
@@ -38,7 +38,7 @@ config PERSISTENT_KEYRINGS
 	  removed if they expire (a default timeout is set upon creation).
 
 config BIG_KEYS
-	tristate "Large payload keys"
+	bool "Large payload keys"
 	depends on KEYS
 	depends on TMPFS
 	help
-- 
cgit 


From 74792b0001ee85b845dc82c1a716c6052c2db9de Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Wed, 30 Oct 2013 11:15:24 +0000
Subject: KEYS: Fix a race between negating a key and reading the error set

key_reject_and_link() marking a key as negative and setting the error with
which it was negated races with keyring searches and other things that read
that error.

The fix is to switch the order in which the assignments are done in
key_reject_and_link() and to use memory barriers.

Kudos to Dave Wysochanski <dwysocha@redhat.com> and Scott Mayhew
<smayhew@redhat.com> for tracking this down.

This may be the cause of:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000070
IP: [<ffffffff81219011>] wait_for_key_construction+0x31/0x80
PGD c6b2c3067 PUD c59879067 PMD 0
Oops: 0000 [#1] SMP
last sysfs file: /sys/devices/system/cpu/cpu3/cache/index2/shared_cpu_map
CPU 0
Modules linked in: ...

Pid: 13359, comm: amqzxma0 Not tainted 2.6.32-358.20.1.el6.x86_64 #1 IBM System x3650 M3 -[7945PSJ]-/00J6159
RIP: 0010:[<ffffffff81219011>] wait_for_key_construction+0x31/0x80
RSP: 0018:ffff880c6ab33758  EFLAGS: 00010246
RAX: ffffffff81219080 RBX: 0000000000000000 RCX: 0000000000000002
RDX: ffffffff81219060 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffff880c6ab33768 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: ffff880adfcbce40
R13: ffffffffa03afb84 R14: ffff880adfcbce40 R15: ffff880adfcbce43
FS:  00007f29b8042700(0000) GS:ffff880028200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000070 CR3: 0000000c613dc000 CR4: 00000000000007f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process amqzxma0 (pid: 13359, threadinfo ffff880c6ab32000, task ffff880c610deae0)
Stack:
 ffff880adfcbce40 0000000000000000 ffff880c6ab337b8 ffffffff81219695
<d> 0000000000000000 ffff880a000000d0 ffff880c6ab337a8 000000000000000f
<d> ffffffffa03afb93 000000000000000f ffff88186c7882c0 0000000000000014
Call Trace:
 [<ffffffff81219695>] request_key+0x65/0xa0
 [<ffffffffa03a0885>] nfs_idmap_request_key+0xc5/0x170 [nfs]
 [<ffffffffa03a0eb4>] nfs_idmap_lookup_id+0x34/0x80 [nfs]
 [<ffffffffa03a1255>] nfs_map_group_to_gid+0x75/0xa0 [nfs]
 [<ffffffffa039a9ad>] decode_getfattr_attrs+0xbdd/0xfb0 [nfs]
 [<ffffffff81057310>] ? __dequeue_entity+0x30/0x50
 [<ffffffff8100988e>] ? __switch_to+0x26e/0x320
 [<ffffffffa039ae03>] decode_getfattr+0x83/0xe0 [nfs]
 [<ffffffffa039b610>] ? nfs4_xdr_dec_getattr+0x0/0xa0 [nfs]
 [<ffffffffa039b69f>] nfs4_xdr_dec_getattr+0x8f/0xa0 [nfs]
 [<ffffffffa02dada4>] rpcauth_unwrap_resp+0x84/0xb0 [sunrpc]
 [<ffffffffa039b610>] ? nfs4_xdr_dec_getattr+0x0/0xa0 [nfs]
 [<ffffffffa02cf923>] call_decode+0x1b3/0x800 [sunrpc]
 [<ffffffff81096de0>] ? wake_bit_function+0x0/0x50
 [<ffffffffa02cf770>] ? call_decode+0x0/0x800 [sunrpc]
 [<ffffffffa02d99a7>] __rpc_execute+0x77/0x350 [sunrpc]
 [<ffffffff81096c67>] ? bit_waitqueue+0x17/0xd0
 [<ffffffffa02d9ce1>] rpc_execute+0x61/0xa0 [sunrpc]
 [<ffffffffa02d03a5>] rpc_run_task+0x75/0x90 [sunrpc]
 [<ffffffffa02d04c2>] rpc_call_sync+0x42/0x70 [sunrpc]
 [<ffffffffa038ff80>] _nfs4_call_sync+0x30/0x40 [nfs]
 [<ffffffffa038836c>] _nfs4_proc_getattr+0xac/0xc0 [nfs]
 [<ffffffff810aac87>] ? futex_wait+0x227/0x380
 [<ffffffffa038b856>] nfs4_proc_getattr+0x56/0x80 [nfs]
 [<ffffffffa0371403>] __nfs_revalidate_inode+0xe3/0x220 [nfs]
 [<ffffffffa037158e>] nfs_revalidate_mapping+0x4e/0x170 [nfs]
 [<ffffffffa036f147>] nfs_file_read+0x77/0x130 [nfs]
 [<ffffffff811811aa>] do_sync_read+0xfa/0x140
 [<ffffffff81096da0>] ? autoremove_wake_function+0x0/0x40
 [<ffffffff8100bb8e>] ? apic_timer_interrupt+0xe/0x20
 [<ffffffff8100b9ce>] ? common_interrupt+0xe/0x13
 [<ffffffff81228ffb>] ? selinux_file_permission+0xfb/0x150
 [<ffffffff8121bed6>] ? security_file_permission+0x16/0x20
 [<ffffffff81181a95>] vfs_read+0xb5/0x1a0
 [<ffffffff81181bd1>] sys_read+0x51/0x90
 [<ffffffff810dc685>] ? __audit_syscall_exit+0x265/0x290
 [<ffffffff8100b072>] system_call_fastpath+0x16/0x1b

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Dave Wysochanski <dwysocha@redhat.com>
cc: Scott Mayhew <smayhew@redhat.com>
---
 security/keys/key.c         | 3 ++-
 security/keys/keyring.c     | 1 +
 security/keys/request_key.c | 4 +++-
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/security/keys/key.c b/security/keys/key.c
index d331ea9ef380..55d110f0aced 100644
--- a/security/keys/key.c
+++ b/security/keys/key.c
@@ -557,9 +557,10 @@ int key_reject_and_link(struct key *key,
 	if (!test_bit(KEY_FLAG_INSTANTIATED, &key->flags)) {
 		/* mark the key as being negatively instantiated */
 		atomic_inc(&key->user->nikeys);
+		key->type_data.reject_error = -error;
+		smp_wmb();
 		set_bit(KEY_FLAG_NEGATIVE, &key->flags);
 		set_bit(KEY_FLAG_INSTANTIATED, &key->flags);
-		key->type_data.reject_error = -error;
 		now = current_kernel_time();
 		key->expiry = now.tv_sec + timeout;
 		key_schedule_gc(key->expiry + key_gc_delay);
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index 9b6f6e09b50c..8c05ebd7203d 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -551,6 +551,7 @@ static int keyring_search_iterator(const void *object, void *iterator_data)
 	if (ctx->flags & KEYRING_SEARCH_DO_STATE_CHECK) {
 		/* we set a different error code if we pass a negative key */
 		if (kflags & (1 << KEY_FLAG_NEGATIVE)) {
+			smp_rmb();
 			ctx->result = ERR_PTR(key->type_data.reject_error);
 			kleave(" = %d [neg]", ctx->skipped_ret);
 			goto skipped;
diff --git a/security/keys/request_key.c b/security/keys/request_key.c
index df94827103d0..381411941cc1 100644
--- a/security/keys/request_key.c
+++ b/security/keys/request_key.c
@@ -596,8 +596,10 @@ int wait_for_key_construction(struct key *key, bool intr)
 			  intr ? TASK_INTERRUPTIBLE : TASK_UNINTERRUPTIBLE);
 	if (ret < 0)
 		return ret;
-	if (test_bit(KEY_FLAG_NEGATIVE, &key->flags))
+	if (test_bit(KEY_FLAG_NEGATIVE, &key->flags)) {
+		smp_rmb();
 		return key->type_data.reject_error;
+	}
 	return key_validate(key);
 }
 EXPORT_SYMBOL(wait_for_key_construction);
-- 
cgit 


From 034faeb9ef390d58239e1dce748143f6b35a0d9b Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Wed, 30 Oct 2013 11:15:24 +0000
Subject: KEYS: Fix keyring quota misaccounting on key replacement and unlink

If a key is displaced from a keyring by a matching one, then four more bytes
of quota are allocated to the keyring - despite the fact that the keyring does
not change in size.

Further, when a key is unlinked from a keyring, the four bytes of quota
allocated the link isn't recovered and returned to the user's pool.

The first can be tested by repeating:

	keyctl add big_key a fred @s
	cat /proc/key-users

(Don't put it in a shell loop otherwise the garbage collector won't have time
to clear the displaced keys, thus affecting the result).

This was causing the kerberos keyring to run out of room fairly quickly.

The second can be tested by:

	cat /proc/key-users
	a=`keyctl add user a a @s`
	cat /proc/key-users
	keyctl unlink $a
	sleep 1 # Give RCU a chance to delete the key
	cat /proc/key-users

assuming no system activity that otherwise adds/removes keys, the amount of
key data allocated should go up (say 40/20000 -> 47/20000) and then return to
the original value at the end.

Reported-by: Stephen Gallagher <sgallagh@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
---
 security/keys/keyring.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index 8c05ebd7203d..d80311e571c3 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -1063,12 +1063,6 @@ int __key_link_begin(struct key *keyring,
 	if (index_key->type == &key_type_keyring)
 		down_write(&keyring_serialise_link_sem);
 
-	/* check that we aren't going to overrun the user's quota */
-	ret = key_payload_reserve(keyring,
-				  keyring->datalen + KEYQUOTA_LINK_BYTES);
-	if (ret < 0)
-		goto error_sem;
-
 	/* Create an edit script that will insert/replace the key in the
 	 * keyring tree.
 	 */
@@ -1078,17 +1072,25 @@ int __key_link_begin(struct key *keyring,
 				  NULL);
 	if (IS_ERR(edit)) {
 		ret = PTR_ERR(edit);
-		goto error_quota;
+		goto error_sem;
+	}
+
+	/* If we're not replacing a link in-place then we're going to need some
+	 * extra quota.
+	 */
+	if (!edit->dead_leaf) {
+		ret = key_payload_reserve(keyring,
+					  keyring->datalen + KEYQUOTA_LINK_BYTES);
+		if (ret < 0)
+			goto error_cancel;
 	}
 
 	*_edit = edit;
 	kleave(" = 0");
 	return 0;
 
-error_quota:
-	/* undo the quota changes */
-	key_payload_reserve(keyring,
-			    keyring->datalen - KEYQUOTA_LINK_BYTES);
+error_cancel:
+	assoc_array_cancel_edit(edit);
 error_sem:
 	if (index_key->type == &key_type_keyring)
 		up_write(&keyring_serialise_link_sem);
@@ -1146,7 +1148,7 @@ void __key_link_end(struct key *keyring,
 	if (index_key->type == &key_type_keyring)
 		up_write(&keyring_serialise_link_sem);
 
-	if (edit) {
+	if (edit && !edit->dead_leaf) {
 		key_payload_reserve(keyring,
 				    keyring->datalen - KEYQUOTA_LINK_BYTES);
 		assoc_array_cancel_edit(edit);
@@ -1243,6 +1245,7 @@ int key_unlink(struct key *keyring, struct key *key)
 		goto error;
 
 	assoc_array_apply_edit(edit);
+	key_payload_reserve(keyring, keyring->datalen - KEYQUOTA_LINK_BYTES);
 	ret = 0;
 
 error:
-- 
cgit 


From 1b673f23d95f0bbc7e3c95321864b727ea75704b Mon Sep 17 00:00:00 2001
From: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Date: Tue, 29 Oct 2013 09:28:49 +0800
Subject: ACPICA: Ensure that debug output is immediately disabled on
 termination.

Set the global debug flag to "no output" when the debugger is shutdown.
ACPICA BZ 1011. Tomasz Nowicki.

Since the debugger is not shipped in the Linux kernel upstream, this
change doesn't affect Linux kernel's behavior.

References: https://bugs.acpica.org/show_bug.cgi?id=1011
Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/aclocal.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index be9e30ee6048..dafa0f6c5fe8 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -1094,6 +1094,7 @@ struct acpi_integrity_info {
 	u32 objects;
 };
 
+#define ACPI_DB_DISABLE_OUTPUT          0x00
 #define ACPI_DB_REDIRECTABLE_OUTPUT     0x01
 #define ACPI_DB_CONSOLE_OUTPUT          0x02
 #define ACPI_DB_DUPLICATE_OUTPUT        0x03
-- 
cgit 


From d7da179423a506e8033a376547a375c0c9ec7671 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Tue, 29 Oct 2013 09:28:56 +0800
Subject: ACPICA: Table print header function: Increase default width for table
 length.

This change increases the default width for the length of tables from
5 to 6, to improve alignment/readability on systems with large tables.
These are being seen more frequently, especially large DSDTs (greater
than 1 MB).

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/tbprint.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/acpica/tbprint.c b/drivers/acpi/acpica/tbprint.c
index 9a47715af1f3..6866e767ba90 100644
--- a/drivers/acpi/acpica/tbprint.c
+++ b/drivers/acpi/acpica/tbprint.c
@@ -135,7 +135,7 @@ acpi_tb_print_table_header(acpi_physical_address address,
 
 		/* FACS only has signature and length fields */
 
-		ACPI_INFO((AE_INFO, "%4.4s %p %05X",
+		ACPI_INFO((AE_INFO, "%4.4s %p %06X",
 			   header->signature, ACPI_CAST_PTR(void, address),
 			   header->length));
 	} else if (ACPI_VALIDATE_RSDP_SIG(header->signature)) {
@@ -147,7 +147,7 @@ acpi_tb_print_table_header(acpi_physical_address address,
 					  header)->oem_id, ACPI_OEM_ID_SIZE);
 		acpi_tb_fix_string(local_header.oem_id, ACPI_OEM_ID_SIZE);
 
-		ACPI_INFO((AE_INFO, "RSDP %p %05X (v%.2d %6.6s)",
+		ACPI_INFO((AE_INFO, "RSDP %p %06X (v%.2d %6.6s)",
 			   ACPI_CAST_PTR(void, address),
 			   (ACPI_CAST_PTR(struct acpi_table_rsdp, header)->
 			    revision >
@@ -162,7 +162,7 @@ acpi_tb_print_table_header(acpi_physical_address address,
 		acpi_tb_cleanup_table_header(&local_header, header);
 
 		ACPI_INFO((AE_INFO,
-			   "%4.4s %p %05X (v%.2d %6.6s %8.8s %08X %4.4s %08X)",
+			   "%4.4s %p %06X (v%.2d %6.6s %8.8s %08X %4.4s %08X)",
 			   local_header.signature, ACPI_CAST_PTR(void, address),
 			   local_header.length, local_header.revision,
 			   local_header.oem_id, local_header.oem_table_id,
-- 
cgit 


From 48961ce62787502fe2afce2aeeb0ec306757a2bb Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Tue, 29 Oct 2013 09:29:04 +0800
Subject: ACPICA: Add a check for a null node during namespace walk.

Mostly for consistency. ACPICA BZ 1042.

Actually, currently no one is experiencing problem without this check
as the obj_handle is guaranteed to be valid.

References: https://bugs.acpica.org/show_bug.cgi?id=1042
Reported-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/nsdump.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c
index 80633851cb2f..c6348545277e 100644
--- a/drivers/acpi/acpica/nsdump.c
+++ b/drivers/acpi/acpica/nsdump.c
@@ -715,6 +715,13 @@ acpi_ns_dump_one_object_path(acpi_handle obj_handle,
 	}
 
 	node = acpi_ns_validate_handle(obj_handle);
+	if (!node) {
+
+		/* Ignore bad node during namespace walk */
+
+		return (AE_OK);
+	}
+
 	pathname = acpi_ns_get_external_pathname(node);
 
 	path_indent = 1;
-- 
cgit 


From 1d98e9e0bb8815072a0d2d04dc3f0e2c51029e61 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Tue, 29 Oct 2013 09:29:09 +0800
Subject: ACPICA: Add history/line-editing for Unix/Linux systems.

The original upstream ACPICA change added full history and limited
line editing to the debugger:

 This change adds full history and limited line editing for Unix and
 Linux systems. It does not use readline() because of portability issues.
 Instead it uses the POSIX termio interface to put the terminal in raw
 input mode so that the various special keys can be trapped (such as
 up-arrow and down-arrow for history support).

Since the debugger is not shipped in the kernel, it only is necessary
to update one header file to keep the kernel source in sync with the
upstream.

[rjw: Changelog]
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acdebug.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h
index 27c36a5251b5..57cdc770fba8 100644
--- a/drivers/acpi/acpica/acdebug.h
+++ b/drivers/acpi/acpica/acdebug.h
@@ -243,6 +243,8 @@ void acpi_db_display_history(void);
 
 char *acpi_db_get_from_history(char *command_num_arg);
 
+char *acpi_db_get_history_by_index(u32 commandd_num);
+
 /*
  * dbinput - user front-end to the AML debugger
  */
-- 
cgit 


From c26f3c908091294e5909f5459b6682e10922c824 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Tue, 29 Oct 2013 09:29:16 +0800
Subject: ACPICA: Fix a macro for the hardware-reduced case

This fix repairs a version of a macro that is used for the hardware
reduced case only. It adds a return statement to the macro definition
so that the translation into the Linux kernel source will not completely
delete the second line of the macro because it thinks that it is an empty
block. It actually clarifies the use of the macro anyway.

Reported-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/acpi/acpixf.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index c7b1475422b3..ebab0d89c70b 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -106,7 +106,7 @@ extern u8 acpi_gbl_disable_ssdt_table_load;
 	static ACPI_INLINE prototype {return(AE_OK);}
 
 #define ACPI_HW_DEPENDENT_RETURN_VOID(prototype) \
-	static ACPI_INLINE prototype {}
+	static ACPI_INLINE prototype {return;}
 
 #endif				/* !ACPI_REDUCED_HARDWARE */
 
-- 
cgit 


From 73424473d0801f7079258897901ba1edc660dbd3 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Tue, 29 Oct 2013 09:29:21 +0800
Subject: ACPICA: Add safe versions of common string functions.

This change adds and deploys "safe" versions of strcpy and strcat that
ensure that the target buffer does not overflow. These safe functions
are only helpful for processing user input and command lines. For most
ACPICA code however, the required buffer length is precisely calculated
before buffer allocation, so the use of these functions is unnecessary.
ACPICA BZ 1043.

This change only applies to the ACPICA utilities and the debugger, none
of which are not shipped with the kernel yet, so the kernel's behavior
remains unchanged after it.

References: https://bugs.acpica.org/show_bug.cgi?id=1043
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/aclocal.h  |  2 +-
 drivers/acpi/acpica/acutils.h  | 11 ++++++++
 drivers/acpi/acpica/utstring.c | 62 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 74 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index dafa0f6c5fe8..53ed1a8ba4f0 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -1072,7 +1072,7 @@ struct acpi_db_method_info {
 	char *name;
 	u32 flags;
 	u32 num_loops;
-	char pathname[128];
+	char pathname[ACPI_DB_LINE_BUFFER_SIZE];
 	char **args;
 	acpi_object_type *types;
 
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index d5a62a6182bb..4f25e8f0cd5f 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -628,6 +628,17 @@ u8 acpi_ut_valid_acpi_char(char character, u32 position);
 
 void acpi_ut_repair_name(char *name);
 
+#if defined (ACPI_DEBUGGER) || defined (ACPI_APPLICATION)
+u8 acpi_ut_safe_strcpy(char *dest, acpi_size dest_size, char *source);
+
+u8 acpi_ut_safe_strcat(char *dest, acpi_size dest_size, char *source);
+
+u8
+acpi_ut_safe_strncat(char *dest,
+		     acpi_size dest_size,
+		     char *source, acpi_size max_transfer_length);
+#endif
+
 /*
  * utmutex - mutex support
  */
diff --git a/drivers/acpi/acpica/utstring.c b/drivers/acpi/acpica/utstring.c
index cb1e9cc32d5f..5ef41ffcf575 100644
--- a/drivers/acpi/acpica/utstring.c
+++ b/drivers/acpi/acpica/utstring.c
@@ -584,3 +584,65 @@ void ut_convert_backslashes(char *pathname)
 	}
 }
 #endif
+
+#if defined (ACPI_DEBUGGER) || defined (ACPI_APPLICATION)
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ut_safe_strcpy, acpi_ut_safe_strcat, acpi_ut_safe_strncat
+ *
+ * PARAMETERS:  Adds a "DestSize" parameter to each of the standard string
+ *              functions. This is the size of the Destination buffer.
+ *
+ * RETURN:      TRUE if the operation would overflow the destination buffer.
+ *
+ * DESCRIPTION: Safe versions of standard Clib string functions. Ensure that
+ *              the result of the operation will not overflow the output string
+ *              buffer.
+ *
+ * NOTE:        These functions are typically only helpful for processing
+ *              user input and command lines. For most ACPICA code, the
+ *              required buffer length is precisely calculated before buffer
+ *              allocation, so the use of these functions is unnecessary.
+ *
+ ******************************************************************************/
+
+u8 acpi_ut_safe_strcpy(char *dest, acpi_size dest_size, char *source)
+{
+
+	if (ACPI_STRLEN(source) >= dest_size) {
+		return (TRUE);
+	}
+
+	ACPI_STRCPY(dest, source);
+	return (FALSE);
+}
+
+u8 acpi_ut_safe_strcat(char *dest, acpi_size dest_size, char *source)
+{
+
+	if ((ACPI_STRLEN(dest) + ACPI_STRLEN(source)) >= dest_size) {
+		return (TRUE);
+	}
+
+	ACPI_STRCAT(dest, source);
+	return (FALSE);
+}
+
+u8
+acpi_ut_safe_strncat(char *dest,
+		     acpi_size dest_size,
+		     char *source, acpi_size max_transfer_length)
+{
+	acpi_size actual_transfer_length;
+
+	actual_transfer_length =
+	    ACPI_MIN(max_transfer_length, ACPI_STRLEN(source));
+
+	if ((ACPI_STRLEN(dest) + actual_transfer_length) >= dest_size) {
+		return (TRUE);
+	}
+
+	ACPI_STRNCAT(dest, source, max_transfer_length);
+	return (FALSE);
+}
+#endif
-- 
cgit 


From b3c86c30efd83ebfa7010c5890e2ebf2678e49f8 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Tue, 29 Oct 2013 09:29:27 +0800
Subject: ACPICA: Cleanup memory allocation macros and configurability.

In the common case, the ACPI_ALLOCATE and related macros now resolve
directly to their respective acpi_os* OSL interfaces. Two options:
1) The ACPI_ALLOCATE_ZEROED macro defaults to a simple local implementation
   by default, unless overridden by the USE_NATIVE_ALLOCATE_ZEROED define.
2) For ACPI execution simulation environment (AcpiExec) which is not
   shipped with the Linux kernel, the macros can optionally be resolved to
   the local interfaces that track each allocation (used to immediately
   detect memory leaks).

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acmacros.h  |  31 -----------
 drivers/acpi/acpica/acutils.h   |   6 ---
 drivers/acpi/acpica/utalloc.c   | 113 ++++++++++++----------------------------
 drivers/acpi/acpica/uttrack.c   |  29 +++++++++--
 include/acpi/acpiosxf.h         |   2 +
 include/acpi/acpixf.h           |   9 ----
 include/acpi/actypes.h          |  27 ++++++++++
 include/acpi/platform/aclinux.h |  15 ++++--
 8 files changed, 100 insertions(+), 132 deletions(-)

diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h
index 530a2f8c1252..2a86c65d873b 100644
--- a/drivers/acpi/acpica/acmacros.h
+++ b/drivers/acpi/acpica/acmacros.h
@@ -409,37 +409,6 @@
 #define ACPI_DEBUGGER_EXEC(a)
 #endif
 
-/*
- * Memory allocation tracking (DEBUG ONLY)
- */
-#define ACPI_MEM_PARAMETERS         _COMPONENT, _acpi_module_name, __LINE__
-
-#ifndef ACPI_DBG_TRACK_ALLOCATIONS
-
-/* Memory allocation */
-
-#ifndef ACPI_ALLOCATE
-#define ACPI_ALLOCATE(a)            acpi_ut_allocate((acpi_size) (a), ACPI_MEM_PARAMETERS)
-#endif
-#ifndef ACPI_ALLOCATE_ZEROED
-#define ACPI_ALLOCATE_ZEROED(a)     acpi_ut_allocate_zeroed((acpi_size) (a), ACPI_MEM_PARAMETERS)
-#endif
-#ifndef ACPI_FREE
-#define ACPI_FREE(a)                acpi_os_free(a)
-#endif
-#define ACPI_MEM_TRACKING(a)
-
-#else
-
-/* Memory allocation */
-
-#define ACPI_ALLOCATE(a)            acpi_ut_allocate_and_track((acpi_size) (a), ACPI_MEM_PARAMETERS)
-#define ACPI_ALLOCATE_ZEROED(a)     acpi_ut_allocate_zeroed_and_track((acpi_size) (a), ACPI_MEM_PARAMETERS)
-#define ACPI_FREE(a)                acpi_ut_free_and_track(a, ACPI_MEM_PARAMETERS)
-#define ACPI_MEM_TRACKING(a)        a
-
-#endif				/* ACPI_DBG_TRACK_ALLOCATIONS */
-
 /*
  * Macros used for ACPICA utilities only
  */
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index 4f25e8f0cd5f..be8180c17d7e 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -663,12 +663,6 @@ acpi_status
 acpi_ut_initialize_buffer(struct acpi_buffer *buffer,
 			  acpi_size required_length);
 
-void *acpi_ut_allocate(acpi_size size,
-		       u32 component, const char *module, u32 line);
-
-void *acpi_ut_allocate_zeroed(acpi_size size,
-			      u32 component, const char *module, u32 line);
-
 #ifdef ACPI_DBG_TRACK_ALLOCATIONS
 void *acpi_ut_allocate_and_track(acpi_size size,
 				 u32 component, const char *module, u32 line);
diff --git a/drivers/acpi/acpica/utalloc.c b/drivers/acpi/acpica/utalloc.c
index e0ffb580f4b0..d84479610971 100644
--- a/drivers/acpi/acpica/utalloc.c
+++ b/drivers/acpi/acpica/utalloc.c
@@ -48,6 +48,39 @@
 #define _COMPONENT          ACPI_UTILITIES
 ACPI_MODULE_NAME("utalloc")
 
+#if !defined (USE_NATIVE_ALLOCATE_ZEROED)
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_os_allocate_zeroed
+ *
+ * PARAMETERS:  size                - Size of the allocation
+ *
+ * RETURN:      Address of the allocated memory on success, NULL on failure.
+ *
+ * DESCRIPTION: Subsystem equivalent of calloc. Allocate and zero memory.
+ *              This is the default implementation. Can be overridden via the
+ *              USE_NATIVE_ALLOCATE_ZEROED flag.
+ *
+ ******************************************************************************/
+void *acpi_os_allocate_zeroed(acpi_size size)
+{
+	void *allocation;
+
+	ACPI_FUNCTION_ENTRY();
+
+	allocation = acpi_os_allocate(size);
+	if (allocation) {
+
+		/* Clear the memory block */
+
+		ACPI_MEMSET(allocation, 0, size);
+	}
+
+	return (allocation);
+}
+
+#endif				/* !USE_NATIVE_ALLOCATE_ZEROED */
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ut_create_caches
@@ -59,6 +92,7 @@ ACPI_MODULE_NAME("utalloc")
  * DESCRIPTION: Create all local caches
  *
  ******************************************************************************/
+
 acpi_status acpi_ut_create_caches(void)
 {
 	acpi_status status;
@@ -302,82 +336,3 @@ acpi_ut_initialize_buffer(struct acpi_buffer * buffer,
 	ACPI_MEMSET(buffer->pointer, 0, required_length);
 	return (AE_OK);
 }
-
-#ifdef NOT_USED_BY_LINUX
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_allocate
- *
- * PARAMETERS:  size                - Size of the allocation
- *              component           - Component type of caller
- *              module              - Source file name of caller
- *              line                - Line number of caller
- *
- * RETURN:      Address of the allocated memory on success, NULL on failure.
- *
- * DESCRIPTION: Subsystem equivalent of malloc.
- *
- ******************************************************************************/
-
-void *acpi_ut_allocate(acpi_size size,
-		       u32 component, const char *module, u32 line)
-{
-	void *allocation;
-
-	ACPI_FUNCTION_TRACE_U32(ut_allocate, size);
-
-	/* Check for an inadvertent size of zero bytes */
-
-	if (!size) {
-		ACPI_WARNING((module, line,
-			      "Attempt to allocate zero bytes, allocating 1 byte"));
-		size = 1;
-	}
-
-	allocation = acpi_os_allocate(size);
-	if (!allocation) {
-
-		/* Report allocation error */
-
-		ACPI_WARNING((module, line,
-			      "Could not allocate size %u", (u32) size));
-
-		return_PTR(NULL);
-	}
-
-	return_PTR(allocation);
-}
-
-/*******************************************************************************
- *
- * FUNCTION:    acpi_ut_allocate_zeroed
- *
- * PARAMETERS:  size                - Size of the allocation
- *              component           - Component type of caller
- *              module              - Source file name of caller
- *              line                - Line number of caller
- *
- * RETURN:      Address of the allocated memory on success, NULL on failure.
- *
- * DESCRIPTION: Subsystem equivalent of calloc. Allocate and zero memory.
- *
- ******************************************************************************/
-
-void *acpi_ut_allocate_zeroed(acpi_size size,
-			      u32 component, const char *module, u32 line)
-{
-	void *allocation;
-
-	ACPI_FUNCTION_ENTRY();
-
-	allocation = acpi_ut_allocate(size, component, module, line);
-	if (allocation) {
-
-		/* Clear the memory block */
-
-		ACPI_MEMSET(allocation, 0, size);
-	}
-
-	return (allocation);
-}
-#endif
diff --git a/drivers/acpi/acpica/uttrack.c b/drivers/acpi/acpica/uttrack.c
index 160f13f4aab5..77e3eb7d7c04 100644
--- a/drivers/acpi/acpica/uttrack.c
+++ b/drivers/acpi/acpica/uttrack.c
@@ -130,10 +130,23 @@ void *acpi_ut_allocate_and_track(acpi_size size,
 	struct acpi_debug_mem_block *allocation;
 	acpi_status status;
 
+	/* Check for an inadvertent size of zero bytes */
+
+	if (!size) {
+		ACPI_WARNING((module, line,
+			      "Attempt to allocate zero bytes, allocating 1 byte"));
+		size = 1;
+	}
+
 	allocation =
-	    acpi_ut_allocate(size + sizeof(struct acpi_debug_mem_header),
-			     component, module, line);
+	    acpi_os_allocate(size + sizeof(struct acpi_debug_mem_header));
 	if (!allocation) {
+
+		/* Report allocation error */
+
+		ACPI_WARNING((module, line,
+			      "Could not allocate size %u", (u32)size));
+
 		return (NULL);
 	}
 
@@ -179,9 +192,17 @@ void *acpi_ut_allocate_zeroed_and_track(acpi_size size,
 	struct acpi_debug_mem_block *allocation;
 	acpi_status status;
 
+	/* Check for an inadvertent size of zero bytes */
+
+	if (!size) {
+		ACPI_WARNING((module, line,
+			      "Attempt to allocate zero bytes, allocating 1 byte"));
+		size = 1;
+	}
+
 	allocation =
-	    acpi_ut_allocate_zeroed(size + sizeof(struct acpi_debug_mem_header),
-				    component, module, line);
+	    acpi_os_allocate_zeroed(size +
+				    sizeof(struct acpi_debug_mem_header));
 	if (!allocation) {
 
 		/* Report allocation error */
diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h
index 64b8c7639520..7f95215e7754 100644
--- a/include/acpi/acpiosxf.h
+++ b/include/acpi/acpiosxf.h
@@ -146,6 +146,8 @@ void acpi_os_release_mutex(acpi_mutex handle);
  */
 void *acpi_os_allocate(acpi_size size);
 
+void *acpi_os_allocate_zeroed(acpi_size size);
+
 void acpi_os_free(void *memory);
 
 void __iomem *acpi_os_map_memory(acpi_physical_address where,
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index ebab0d89c70b..ddde61b43041 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -158,15 +158,6 @@ acpi_status
 acpi_decode_pld_buffer(u8 *in_buffer,
 		       acpi_size length, struct acpi_pld_info **return_buffer);
 
-/*
- * ACPI Memory management
- */
-void *acpi_allocate(u32 size);
-
-void *acpi_callocate(u32 size);
-
-void acpi_free(void *address);
-
 /*
  * ACPI table load/unload interfaces
  */
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index f6abf23ad0a7..fed5af2bcb93 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -306,6 +306,33 @@ typedef u32 acpi_physical_address;
 #define ACPI_EXPORT_SYMBOL(symbol)
 #endif
 
+/*******************************************************************************
+ *
+ * Configuration
+ *
+ ******************************************************************************/
+
+#ifdef ACPI_DBG_TRACK_ALLOCATIONS
+/*
+ * Memory allocation tracking (used by acpi_exec to detect memory leaks)
+ */
+#define ACPI_MEM_PARAMETERS             _COMPONENT, _acpi_module_name, __LINE__
+#define ACPI_ALLOCATE(a)                acpi_ut_allocate_and_track ((acpi_size) (a), ACPI_MEM_PARAMETERS)
+#define ACPI_ALLOCATE_ZEROED(a)         acpi_ut_allocate_zeroed_and_track ((acpi_size) (a), ACPI_MEM_PARAMETERS)
+#define ACPI_FREE(a)                    acpi_ut_free_and_track (a, ACPI_MEM_PARAMETERS)
+#define ACPI_MEM_TRACKING(a)            a
+
+#else
+/*
+ * Normal memory allocation directly via the OS services layer
+ */
+#define ACPI_ALLOCATE(a)                acpi_os_allocate ((acpi_size) (a))
+#define ACPI_ALLOCATE_ZEROED(a)         acpi_os_allocate_zeroed ((acpi_size) (a))
+#define ACPI_FREE(a)                    acpi_os_free (a)
+#define ACPI_MEM_TRACKING(a)
+
+#endif				/* ACPI_DBG_TRACK_ALLOCATIONS */
+
 /******************************************************************************
  *
  * ACPI Specification constants (Do not change unless the specification changes)
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index fda0f3e35c03..7346a9235a4c 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -118,6 +118,14 @@ static inline acpi_thread_id acpi_os_get_thread_id(void)
 	return (acpi_thread_id)(unsigned long)current;
 }
 
+/*
+ * Memory allocation/deallocation
+ */
+
+/* Use native linux version of acpi_os_allocate_zeroed */
+
+#define USE_NATIVE_ALLOCATE_ZEROED
+
 /*
  * The irqs_disabled() check is for resume from RAM.
  * Interrupts are off during resume, just like they are for boot.
@@ -140,9 +148,10 @@ static inline void *acpi_os_acquire_object(acpi_cache_t * cache)
 		irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);
 }
 
-#define ACPI_ALLOCATE(a)        acpi_os_allocate(a)
-#define ACPI_ALLOCATE_ZEROED(a) acpi_os_allocate_zeroed(a)
-#define ACPI_FREE(a)            kfree(a)
+static inline void acpi_os_free(void *a)
+{
+	kfree(a);
+}
 
 #ifndef CONFIG_PREEMPT
 /*
-- 
cgit 


From bf4994aca7c62b62b0a85a28476ef3a69ea8970f Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Tue, 29 Oct 2013 09:29:34 +0800
Subject: ACPICA: Predefine name macros: Sort list.

Sort the method names in acnames.h.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/acpi/acnames.h | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/include/acpi/acnames.h b/include/acpi/acnames.h
index ce08ef7d969c..1f36777e26fe 100644
--- a/include/acpi/acnames.h
+++ b/include/acpi/acnames.h
@@ -46,25 +46,25 @@
 
 /* Method names - these methods can appear anywhere in the namespace */
 
-#define METHOD_NAME__SB_        "_SB_"
-#define METHOD_NAME__HID        "_HID"
-#define METHOD_NAME__CID        "_CID"
-#define METHOD_NAME__UID        "_UID"
-#define METHOD_NAME__SUB        "_SUB"
 #define METHOD_NAME__ADR        "_ADR"
-#define METHOD_NAME__INI        "_INI"
-#define METHOD_NAME__STA        "_STA"
-#define METHOD_NAME__REG        "_REG"
-#define METHOD_NAME__SEG        "_SEG"
+#define METHOD_NAME__AEI        "_AEI"
 #define METHOD_NAME__BBN        "_BBN"
-#define METHOD_NAME__PRT        "_PRT"
+#define METHOD_NAME__CBA        "_CBA"
+#define METHOD_NAME__CID        "_CID"
 #define METHOD_NAME__CRS        "_CRS"
+#define METHOD_NAME__HID        "_HID"
+#define METHOD_NAME__INI        "_INI"
+#define METHOD_NAME__PLD        "_PLD"
 #define METHOD_NAME__PRS        "_PRS"
-#define METHOD_NAME__AEI        "_AEI"
+#define METHOD_NAME__PRT        "_PRT"
 #define METHOD_NAME__PRW        "_PRW"
+#define METHOD_NAME__REG        "_REG"
+#define METHOD_NAME__SB_        "_SB_"
+#define METHOD_NAME__SEG        "_SEG"
 #define METHOD_NAME__SRS        "_SRS"
-#define METHOD_NAME__CBA        "_CBA"
-#define METHOD_NAME__PLD        "_PLD"
+#define METHOD_NAME__STA        "_STA"
+#define METHOD_NAME__SUB        "_SUB"
+#define METHOD_NAME__UID        "_UID"
 
 /* Method names - these methods must appear at the namespace root */
 
-- 
cgit 


From ab3b24807adabdc32f8a9d5d7d3902e1e744d139 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Tue, 29 Oct 2013 09:29:40 +0800
Subject: ACPICA: Fix possible memory leaks in the GPE handling.

This change fixes potential memory leaks in the error paths of the GPE
handling code. Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/evgpe.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c
index c8a1f7d5931f..1979a256be3b 100644
--- a/drivers/acpi/acpica/evgpe.c
+++ b/drivers/acpi/acpica/evgpe.c
@@ -522,6 +522,7 @@ static void ACPI_SYSTEM_XFACE acpi_ev_asynch_execute_gpe_method(void *context)
 
 	status = acpi_ut_release_mutex(ACPI_MTX_EVENTS);
 	if (ACPI_FAILURE(status)) {
+		ACPI_FREE(local_gpe_event_info);
 		return_VOID;
 	}
 
-- 
cgit 


From e07fcfd89f9bbbc5f655b85b70e6f9b0bb626bac Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Tue, 29 Oct 2013 09:29:45 +0800
Subject: ACPICA: Hardcode access width for the reset register.

The ACPI spec requires the reset register width to be 8, so we
now hardcode it and ignore the FADT value. This provides/maintains
compatibility with other ACPI implementations that have allowed
BIOS code with bad register width values to go unnoticed.
Matthew Garett, Bob Moore, Lv Zheng.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/hwxface.c | 10 ++++++++--
 include/acpi/actypes.h        |  1 +
 2 files changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c
index f81fb068d20e..d3682c2ae0d1 100644
--- a/drivers/acpi/acpica/hwxface.c
+++ b/drivers/acpi/acpica/hwxface.c
@@ -83,11 +83,17 @@ acpi_status acpi_reset(void)
 		 * For I/O space, write directly to the OSL. This bypasses the port
 		 * validation mechanism, which may block a valid write to the reset
 		 * register.
-		 * Spec section 4.7.3.6 requires register width to be 8.
+		 *
+		 * NOTE:
+		 * The ACPI spec requires the reset register width to be 8, so we
+		 * hardcode it here and ignore the FADT value. This maintains
+		 * compatibility with other ACPI implementations that have allowed
+		 * BIOS code with bad register width values to go unnoticed.
 		 */
 		status =
 		    acpi_os_write_port((acpi_io_address) reset_reg->address,
-				       acpi_gbl_FADT.reset_value, 8);
+				       acpi_gbl_FADT.reset_value,
+				       ACPI_RESET_REGISTER_WIDTH);
 	} else {
 		/* Write the reset value to the reset register */
 
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index fed5af2bcb93..63909d9c2f7a 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -349,6 +349,7 @@ typedef u32 acpi_physical_address;
 #define ACPI_PM1_REGISTER_WIDTH         16
 #define ACPI_PM2_REGISTER_WIDTH         8
 #define ACPI_PM_TIMER_WIDTH             32
+#define ACPI_RESET_REGISTER_WIDTH       8
 
 /* Names within the namespace are 4 bytes long */
 
-- 
cgit 


From bbf023c74dcf380769aec00aedd706a266b7d9ef Mon Sep 17 00:00:00 2001
From: Ming Lei <ming.lei@canonical.com>
Date: Wed, 30 Oct 2013 07:27:16 -0400
Subject: ext4: pair trace_ext4_writepages & trace_ext4_writepages_result

Pair the two trace events to make troubeshooting writepages
easier, and it should be more convinient to write a simple script
to parse the traces.

Cc: linux-ext4@vger.kernel.org
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 fs/ext4/inode.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 94aac67b55c9..43015fa69c3a 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -2423,16 +2423,15 @@ static int ext4_writepages(struct address_space *mapping,
 	 * because that could violate lock ordering on umount
 	 */
 	if (!mapping->nrpages || !mapping_tagged(mapping, PAGECACHE_TAG_DIRTY))
-		return 0;
+		goto out_writepages;
 
 	if (ext4_should_journal_data(inode)) {
 		struct blk_plug plug;
-		int ret;
 
 		blk_start_plug(&plug);
 		ret = write_cache_pages(mapping, wbc, __writepage, mapping);
 		blk_finish_plug(&plug);
-		return ret;
+		goto out_writepages;
 	}
 
 	/*
@@ -2445,8 +2444,10 @@ static int ext4_writepages(struct address_space *mapping,
 	 * *never* be called, so if that ever happens, we would want
 	 * the stack trace.
 	 */
-	if (unlikely(sbi->s_mount_flags & EXT4_MF_FS_ABORTED))
-		return -EROFS;
+	if (unlikely(sbi->s_mount_flags & EXT4_MF_FS_ABORTED)) {
+		ret = -EROFS;
+		goto out_writepages;
+	}
 
 	if (ext4_should_dioread_nolock(inode)) {
 		/*
-- 
cgit 


From cf6ac4ce1bdf2d0718d5f33d62f695e105706a5d Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 8 Oct 2013 16:23:24 -0700
Subject: video: Remove unnecessary semicolons

These aren't necessary after switch, for, and if blocks.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/cfbimgblt.c                       | 2 +-
 drivers/video/cg14.c                            | 4 ++--
 drivers/video/cg6.c                             | 2 +-
 drivers/video/exynos/exynos_mipi_dsi_common.c   | 2 +-
 drivers/video/fsl-diu-fb.c                      | 2 +-
 drivers/video/leo.c                             | 2 +-
 drivers/video/matrox/matroxfb_DAC1064.c         | 4 ++--
 drivers/video/matrox/matroxfb_Ti3026.c          | 2 +-
 drivers/video/nvidia/nv_hw.c                    | 2 +-
 drivers/video/omap2/displays-new/panel-dsi-cm.c | 2 +-
 drivers/video/omap2/dss/dispc.c                 | 2 +-
 drivers/video/omap2/dss/dsi.c                   | 2 +-
 drivers/video/sbuslib.c                         | 2 +-
 drivers/video/sysimgblt.c                       | 2 +-
 drivers/video/tcx.c                             | 4 ++--
 drivers/video/vt8500lcdfb.c                     | 2 +-
 16 files changed, 19 insertions(+), 19 deletions(-)

diff --git a/drivers/video/cfbimgblt.c b/drivers/video/cfbimgblt.c
index baed57d3cfff..a2bb276a8b24 100644
--- a/drivers/video/cfbimgblt.c
+++ b/drivers/video/cfbimgblt.c
@@ -181,7 +181,7 @@ static inline void slow_imageblit(const struct fb_image *image, struct fb_info *
 			}
 			shift += bpp;
 			shift &= (32 - 1);
-			if (!l) { l = 8; s++; };
+			if (!l) { l = 8; s++; }
 		}
 
 		/* write trailing bits */
diff --git a/drivers/video/cg14.c b/drivers/video/cg14.c
index 9626488a69c5..c79745b136bb 100644
--- a/drivers/video/cg14.c
+++ b/drivers/video/cg14.c
@@ -330,7 +330,7 @@ static int cg14_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
 		default:
 			ret = -ENOSYS;
 			break;
-		};
+		}
 		if (!ret) {
 			sbus_writeb(cur_mode, &regs->mcr);
 			par->mode = mode;
@@ -343,7 +343,7 @@ static int cg14_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg)
 					  FBTYPE_MDICOLOR, 8,
 					  info->fix.smem_len);
 		break;
-	};
+	}
 
 	return ret;
 }
diff --git a/drivers/video/cg6.c b/drivers/video/cg6.c
index f070ec3b0f0a..70781fea092a 100644
--- a/drivers/video/cg6.c
+++ b/drivers/video/cg6.c
@@ -624,7 +624,7 @@ static void cg6_init_fix(struct fb_info *info, int linebytes)
 	default:
 		cg6_cpu_name = "i386";
 		break;
-	};
+	}
 	if (((conf >> CG6_FHC_REV_SHIFT) & CG6_FHC_REV_MASK) >= 11) {
 		if (info->fix.smem_len <= 0x100000)
 			cg6_card_name = "TGX";
diff --git a/drivers/video/exynos/exynos_mipi_dsi_common.c b/drivers/video/exynos/exynos_mipi_dsi_common.c
index 520fc9bd887b..9b321652b810 100644
--- a/drivers/video/exynos/exynos_mipi_dsi_common.c
+++ b/drivers/video/exynos/exynos_mipi_dsi_common.c
@@ -667,7 +667,7 @@ int exynos_mipi_dsi_init_dsim(struct mipi_dsim_device *dsim)
 	default:
 		dev_info(dsim->dev, "data lane is invalid.\n");
 		return -EINVAL;
-	};
+	}
 
 	exynos_mipi_dsi_sw_reset(dsim);
 	exynos_mipi_dsi_func_reset(dsim);
diff --git a/drivers/video/fsl-diu-fb.c b/drivers/video/fsl-diu-fb.c
index 6dd72250111e..6c71bb6b9a6d 100644
--- a/drivers/video/fsl-diu-fb.c
+++ b/drivers/video/fsl-diu-fb.c
@@ -1102,7 +1102,7 @@ static int fsl_diu_cursor(struct fb_info *info, struct fb_cursor *cursor)
 
 		fsl_diu_load_cursor_image(info, image, bg, fg,
 			cursor->image.width, cursor->image.height);
-	};
+	}
 
 	/*
 	 * Show or hide the cursor.  The cursor data is always stored in the
diff --git a/drivers/video/leo.c b/drivers/video/leo.c
index c0f61aa37696..2c7f7d479fe2 100644
--- a/drivers/video/leo.c
+++ b/drivers/video/leo.c
@@ -469,7 +469,7 @@ static void leo_wid_put(struct fb_info *info, struct fb_wid_list *wl)
 
 		default:
 			continue;
-		};
+		}
 		sbus_writel(0x5800 + j, &lx_krn->krn_type);
 		sbus_writel(wi->wi_values[0], &lx_krn->krn_value);
 	}
diff --git a/drivers/video/matrox/matroxfb_DAC1064.c b/drivers/video/matrox/matroxfb_DAC1064.c
index 1717623aabc0..a01147fdf270 100644
--- a/drivers/video/matrox/matroxfb_DAC1064.c
+++ b/drivers/video/matrox/matroxfb_DAC1064.c
@@ -494,7 +494,7 @@ static int m1064_compute(void* out, struct my_timming* m) {
 			if (inDAC1064(minfo, M1064_XPIXPLLSTAT) & 0x40)
 				break;
 			udelay(10);
-		};
+		}
 
 		CRITEND
 
@@ -639,7 +639,7 @@ static void MGAG100_progPixClock(const struct matrox_fb_info *minfo, int flags,
 		if (inDAC1064(minfo, M1064_XPIXPLLSTAT) & 0x40)
 			break;
 		udelay(10);
-	};
+	}
 	if (!clk)
 		printk(KERN_ERR "matroxfb: Pixel PLL%c not locked after usual time\n", (reg-M1064_XPIXPLLAM-2)/4 + 'A');
 	selClk = inDAC1064(minfo, M1064_XPIXCLKCTRL) & ~M1064_XPIXCLKCTRL_SRC_MASK;
diff --git a/drivers/video/matrox/matroxfb_Ti3026.c b/drivers/video/matrox/matroxfb_Ti3026.c
index 9a44cec394b5..195ad7cac1ba 100644
--- a/drivers/video/matrox/matroxfb_Ti3026.c
+++ b/drivers/video/matrox/matroxfb_Ti3026.c
@@ -473,7 +473,7 @@ static void ti3026_setMCLK(struct matrox_fb_info *minfo, int fout)
 		if (inTi3026(minfo, TVP3026_XPIXPLLDATA) & 0x40)
 			break;
 		udelay(10);
-	};
+	}
 	if (!tmout)
 		printk(KERN_ERR "matroxfb: Temporary pixel PLL not locked after 5 secs\n");
 
diff --git a/drivers/video/nvidia/nv_hw.c b/drivers/video/nvidia/nv_hw.c
index ed20a9871b33..81c80ac3c76f 100644
--- a/drivers/video/nvidia/nv_hw.c
+++ b/drivers/video/nvidia/nv_hw.c
@@ -1300,7 +1300,7 @@ void NVLoadStateExt(struct nvidia_par *par, RIVA_HW_STATE * state)
 					break;
 				default:
 					break;
-				};
+				}
 
 				NV_WR32(par->PGRAPH, 0x0b38, 0x2ffff800);
 				NV_WR32(par->PGRAPH, 0x0b3c, 0x00006000);
diff --git a/drivers/video/omap2/displays-new/panel-dsi-cm.c b/drivers/video/omap2/displays-new/panel-dsi-cm.c
index aaaea6469cd9..b7baafe83aa3 100644
--- a/drivers/video/omap2/displays-new/panel-dsi-cm.c
+++ b/drivers/video/omap2/displays-new/panel-dsi-cm.c
@@ -599,7 +599,7 @@ static int dsicm_power_on(struct panel_drv_data *ddata)
 	if (r) {
 		dev_err(&ddata->pdev->dev, "failed to configure DSI pins\n");
 		goto err0;
-	};
+	}
 
 	r = in->ops.dsi->set_config(in, &dsi_config);
 	if (r) {
diff --git a/drivers/video/omap2/dss/dispc.c b/drivers/video/omap2/dss/dispc.c
index 8fbeb299fac3..91c687fd002e 100644
--- a/drivers/video/omap2/dss/dispc.c
+++ b/drivers/video/omap2/dss/dispc.c
@@ -2918,7 +2918,7 @@ static void _dispc_mgr_set_lcd_timings(enum omap_channel channel, int hsw,
 		break;
 	default:
 		BUG();
-	};
+	}
 
 	l = dispc_read_reg(DISPC_POL_FREQ(channel));
 	l |= FLD_VAL(onoff, 17, 17);
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index 64b1a81b3afc..6056b27cf73c 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -4066,7 +4066,7 @@ static int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel)
 		default:
 			r = -EINVAL;
 			goto err_pix_fmt;
-		};
+		}
 
 		dsi_if_enable(dsidev, false);
 		dsi_vc_enable(dsidev, channel, false);
diff --git a/drivers/video/sbuslib.c b/drivers/video/sbuslib.c
index 296afae442f4..a350209ffbd3 100644
--- a/drivers/video/sbuslib.c
+++ b/drivers/video/sbuslib.c
@@ -186,7 +186,7 @@ int sbusfb_ioctl_helper(unsigned long cmd, unsigned long arg,
 	}
 	default:
 		return -EINVAL;
-	};
+	}
 }
 EXPORT_SYMBOL(sbusfb_ioctl_helper);
 
diff --git a/drivers/video/sysimgblt.c b/drivers/video/sysimgblt.c
index 186c6f607be2..a4d05b1b17d7 100644
--- a/drivers/video/sysimgblt.c
+++ b/drivers/video/sysimgblt.c
@@ -152,7 +152,7 @@ static void slow_imageblit(const struct fb_image *image, struct fb_info *p,
 			}
 			shift += bpp;
 			shift &= (32 - 1);
-			if (!l) { l = 8; s++; };
+			if (!l) { l = 8; s++; }
 		}
 
 		/* write trailing bits */
diff --git a/drivers/video/tcx.c b/drivers/video/tcx.c
index 1f3a3271f3dd..7fb2d696fac7 100644
--- a/drivers/video/tcx.c
+++ b/drivers/video/tcx.c
@@ -232,7 +232,7 @@ tcx_blank(int blank, struct fb_info *info)
 
 	case FB_BLANK_POWERDOWN: /* Poweroff */
 		break;
-	};
+	}
 
 	sbus_writel(val, &thc->thc_misc);
 
@@ -434,7 +434,7 @@ static int tcx_probe(struct platform_device *op)
 		default:
 			j = i;
 			break;
-		};
+		}
 		par->mmap_map[i].poff = op->resource[j].start;
 	}
 
diff --git a/drivers/video/vt8500lcdfb.c b/drivers/video/vt8500lcdfb.c
index 897484903c30..b30e5a439d1f 100644
--- a/drivers/video/vt8500lcdfb.c
+++ b/drivers/video/vt8500lcdfb.c
@@ -365,7 +365,7 @@ static int vt8500lcd_probe(struct platform_device *pdev)
 	if (!fb_mem_virt) {
 		pr_err("%s: Failed to allocate framebuffer\n", __func__);
 		return -ENOMEM;
-	};
+	}
 
 	fbi->fb.fix.smem_start	= fb_mem_phys;
 	fbi->fb.fix.smem_len	= fb_mem_len;
-- 
cgit 


From fa3fd89f9d214ce2c66db927be5ea00b35989df0 Mon Sep 17 00:00:00 2001
From: Manish Badarkhe <badarkhe.manish@gmail.com>
Date: Thu, 10 Oct 2013 09:58:31 +0530
Subject: video: da8xx-fb: remove unwanted define

Remove unwanted define "WSI_TIMEOUT" present in code.

Signed-off-by: Manish Badarkhe <badarkhe.manish@gmail.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/da8xx-fb.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c
index 90f8a2f04d7a..a1d74dd11988 100644
--- a/drivers/video/da8xx-fb.c
+++ b/drivers/video/da8xx-fb.c
@@ -129,7 +129,6 @@
 
 #define LCD_NUM_BUFFERS	2
 
-#define WSI_TIMEOUT	50
 #define PALETTE_SIZE	256
 
 #define	CLK_MIN_DIV	2
-- 
cgit 


From 8900346d5ced18487588af20a8b6323858688d07 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 25 Oct 2013 10:42:44 +0530
Subject: video: exynos_mipi_dsi: Unlock the mutex before returning

Mutex should be unlocked before returning. Fixes mutex lock-unlock
imbalance issue.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/exynos/exynos_mipi_dsi_common.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/video/exynos/exynos_mipi_dsi_common.c b/drivers/video/exynos/exynos_mipi_dsi_common.c
index 9b321652b810..7eed957b6014 100644
--- a/drivers/video/exynos/exynos_mipi_dsi_common.c
+++ b/drivers/video/exynos/exynos_mipi_dsi_common.c
@@ -376,6 +376,7 @@ int exynos_mipi_dsi_rd_data(struct mipi_dsim_device *dsim, unsigned int data_id,
 			"data id %x is not supported current DSI spec.\n",
 			data_id);
 
+		mutex_unlock(&dsim->lock);
 		return -EINVAL;
 	}
 
-- 
cgit 


From 48ffdab1c1eb87fee9ed7366472e2b9aa4577a60 Mon Sep 17 00:00:00 2001
From: BoxiLiu <lewis.liulei@huawei.com>
Date: Wed, 30 Oct 2013 08:07:20 -0400
Subject: ext4: change ext4_read_inline_dir() to return 0 on success

In ext4_read_inline_dir(), if there is inline data, the successful
return value is the return value of ext4_read_inline_data().  Howewer,
this is used by ext4_readdir(), and while it seems harmless to return
a positive value on success, it's inconsistent, since historically
we've always return 0 on success.

Signed-off-by: BoxiLiu <lewis.liulei@huawei.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Acked-by: Tao Ma <boyu.mt@taobao.com>
---
 fs/ext4/inline.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index d9ecbf1113a7..c3efb65d2ec6 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -1442,6 +1442,7 @@ int ext4_read_inline_dir(struct file *file,
 	if (ret < 0)
 		goto out;
 
+	ret = 0;
 	sb = inode->i_sb;
 	parent_ino = le32_to_cpu(((struct ext4_dir_entry_2 *)dir_buf)->inode);
 	offset = ctx->pos;
-- 
cgit 


From 0172f779e4314639a8ed440082cfe9e3450954e8 Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Wed, 30 Oct 2013 19:04:00 +0900
Subject: slab: fix to calm down kmemleak warning

After using struct page as slab management, we should not call
kmemleak_scan_area(), since struct page isn't the tracking object of
kmemleak. Without this patch and if CONFIG_DEBUG_KMEMLEAK is enabled,
so many kmemleak warnings are printed.

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
---
 mm/slab.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index af2db76e1f5a..a8a93497d7d6 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2531,14 +2531,6 @@ static struct freelist *alloc_slabmgmt(struct kmem_cache *cachep,
 		/* Slab management obj is off-slab. */
 		freelist = kmem_cache_alloc_node(cachep->freelist_cache,
 					      local_flags, nodeid);
-		/*
-		 * If the first object in the slab is leaked (it's allocated
-		 * but no one has a reference to it), we want to make sure
-		 * kmemleak does not treat the ->s_mem pointer as a reference
-		 * to the object. Otherwise we will not report the leak.
-		 */
-		kmemleak_scan_area(&page->lru, sizeof(struct list_head),
-				   local_flags);
 		if (!freelist)
 			return NULL;
 	} else {
-- 
cgit 


From 7e00735520ffb00bda3e08c441d0a4dba42913a7 Mon Sep 17 00:00:00 2001
From: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Date: Wed, 30 Oct 2013 19:04:01 +0900
Subject: slab: replace non-existing 'struct freelist *' with 'void *'

There is no 'strcut freelist', but codes use pointer to 'struct freelist'.
Although compiler doesn't complain anything about this wrong usage and
codes work fine, but fixing it is better.

Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Pekka Enberg <penberg@iki.fi>
---
 mm/slab.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index a8a93497d7d6..a983e3084332 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1954,7 +1954,7 @@ static void slab_destroy_debugcheck(struct kmem_cache *cachep,
  */
 static void slab_destroy(struct kmem_cache *cachep, struct page *page)
 {
-	struct freelist *freelist;
+	void *freelist;
 
 	freelist = page->freelist;
 	slab_destroy_debugcheck(cachep, page);
@@ -2520,11 +2520,11 @@ int __kmem_cache_shutdown(struct kmem_cache *cachep)
  * kmem_find_general_cachep till the initialization is complete.
  * Hence we cannot have freelist_cache same as the original cache.
  */
-static struct freelist *alloc_slabmgmt(struct kmem_cache *cachep,
+static void *alloc_slabmgmt(struct kmem_cache *cachep,
 				   struct page *page, int colour_off,
 				   gfp_t local_flags, int nodeid)
 {
-	struct freelist *freelist;
+	void *freelist;
 	void *addr = page_address(page);
 
 	if (OFF_SLAB(cachep)) {
@@ -2646,7 +2646,7 @@ static void slab_put_obj(struct kmem_cache *cachep, struct page *page,
  * virtual address for kfree, ksize, and slab debugging.
  */
 static void slab_map_pages(struct kmem_cache *cache, struct page *page,
-			   struct freelist *freelist)
+			   void *freelist)
 {
 	page->slab_cache = cache;
 	page->freelist = freelist;
@@ -2659,7 +2659,7 @@ static void slab_map_pages(struct kmem_cache *cache, struct page *page,
 static int cache_grow(struct kmem_cache *cachep,
 		gfp_t flags, int nodeid, struct page *page)
 {
-	struct freelist *freelist;
+	void *freelist;
 	size_t offset;
 	gfp_t local_flags;
 	struct kmem_cache_node *n;
-- 
cgit 


From c04e8e2fe5e0163fd37ccec7f538be8fa63be40e Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Thu, 24 Oct 2013 15:54:17 +0100
Subject: arm64: allow ioremap_cache() to use existing RAM mappings

Some drivers (ACPI notably) use ioremap_cache() to map an area which could
either be outside of kernel RAM or in an already mapped reserved area of
RAM. To avoid aliases with different caching attributes, ioremap() does
not allow RAM to be remapped. But for ioremap_cache(), the existing kernel
mapping may be used.

Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/include/asm/io.h |  2 +-
 arch/arm64/mm/ioremap.c     | 20 ++++++++++++++++++--
 2 files changed, 19 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h
index 1d12f89140ba..b56e5b5df881 100644
--- a/arch/arm64/include/asm/io.h
+++ b/arch/arm64/include/asm/io.h
@@ -224,6 +224,7 @@ extern void __memset_io(volatile void __iomem *, int, size_t);
  */
 extern void __iomem *__ioremap(phys_addr_t phys_addr, size_t size, pgprot_t prot);
 extern void __iounmap(volatile void __iomem *addr);
+extern void __iomem *ioremap_cache(phys_addr_t phys_addr, size_t size);
 
 #define PROT_DEFAULT		(PTE_TYPE_PAGE | PTE_AF | PTE_DIRTY)
 #define PROT_DEVICE_nGnRE	(PROT_DEFAULT | PTE_PXN | PTE_UXN | PTE_ATTRINDX(MT_DEVICE_nGnRE))
@@ -233,7 +234,6 @@ extern void __iounmap(volatile void __iomem *addr);
 #define ioremap(addr, size)		__ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE))
 #define ioremap_nocache(addr, size)	__ioremap((addr), (size), __pgprot(PROT_DEVICE_nGnRE))
 #define ioremap_wc(addr, size)		__ioremap((addr), (size), __pgprot(PROT_NORMAL_NC))
-#define ioremap_cached(addr, size)	__ioremap((addr), (size), __pgprot(PROT_NORMAL))
 #define iounmap				__iounmap
 
 #define PROT_SECT_DEFAULT	(PMD_TYPE_SECT | PMD_SECT_AF)
diff --git a/arch/arm64/mm/ioremap.c b/arch/arm64/mm/ioremap.c
index 1725cd6db37a..2bb1d586664c 100644
--- a/arch/arm64/mm/ioremap.c
+++ b/arch/arm64/mm/ioremap.c
@@ -77,8 +77,24 @@ EXPORT_SYMBOL(__ioremap);
 
 void __iounmap(volatile void __iomem *io_addr)
 {
-	void *addr = (void *)(PAGE_MASK & (unsigned long)io_addr);
+	unsigned long addr = (unsigned long)io_addr & PAGE_MASK;
 
-	vunmap(addr);
+	/*
+	 * We could get an address outside vmalloc range in case
+	 * of ioremap_cache() reusing a RAM mapping.
+	 */
+	if (VMALLOC_START <= addr && addr < VMALLOC_END)
+		vunmap((void *)addr);
 }
 EXPORT_SYMBOL(__iounmap);
+
+void __iomem *ioremap_cache(phys_addr_t phys_addr, size_t size)
+{
+	/* For normal memory we already have a cacheable mapping. */
+	if (pfn_valid(__phys_to_pfn(phys_addr)))
+		return (void __iomem *)__phys_to_virt(phys_addr);
+
+	return __ioremap_caller(phys_addr, size, __pgprot(PROT_NORMAL),
+				__builtin_return_address(0));
+}
+EXPORT_SYMBOL(ioremap_cache);
-- 
cgit 


From 6e15d0e04bfeaa5662a289ee915273307326e45a Mon Sep 17 00:00:00 2001
From: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Date: Mon, 21 Oct 2013 13:29:42 +0100
Subject: ARM64: DT: define ARM64 specific arch_match_cpu_phys_id

OF/DT core library provides architecture specific hook to match the
logical cpu index with the corresponding physical identifier.

On ARM64, the MPIDR_EL1 contains specific bitfields(MPIDR_EL1.Aff{3..0})
which uniquely identify a CPU, in addition to some non-identifying
information and reserved bits. The ARM cpu binding defines the 'reg'
property to only contain the affinity bits, and any cpu nodes with other
bits set in their 'reg' entry are skipped.

This patch overrides the weak definition of arch_match_cpu_phys_id
with ARM64 specific version using MPIDR_EL1.Aff{3..0} as cpu physical
identifiers.

Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kernel/setup.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index fa6faf564da2..9cf30f49610d 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -98,6 +98,11 @@ void __init early_print(const char *str, ...)
 	printk("%s", buf);
 }
 
+bool arch_match_cpu_phys_id(int cpu, u64 phys_id)
+{
+	return phys_id == cpu_logical_map(cpu);
+}
+
 static void __init setup_processor(void)
 {
 	struct cpu_info *cpu_info;
-- 
cgit 


From d2b86970245b64652c4d7799e707dd8bd1533b64 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 30 Oct 2013 11:23:02 +0800
Subject: KEYS: fix error return code in big_key_instantiate()

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David Howells <dhowells@redhat.com>
---
 security/keys/big_key.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/security/keys/big_key.c b/security/keys/big_key.c
index 5f9defc4a807..2cf5e62d67af 100644
--- a/security/keys/big_key.c
+++ b/security/keys/big_key.c
@@ -71,8 +71,10 @@ int big_key_instantiate(struct key *key, struct key_preparsed_payload *prep)
 		 * TODO: Encrypt the stored data with a temporary key.
 		 */
 		file = shmem_file_setup("", datalen, 0);
-		if (IS_ERR(file))
+		if (IS_ERR(file)) {
+			ret = PTR_ERR(file);
 			goto err_quota;
+		}
 
 		written = kernel_write(file, prep->data, prep->datalen, 0);
 		if (written != datalen) {
-- 
cgit 


From db60d8da8f643586c95f8fc3e383954f8c57f1f3 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 30 Oct 2013 18:22:30 +0530
Subject: dmanengine: fix edma driver to not define DMA_COMPLETE

edma header defines DMA_COMPLETE, this causes issues as commit adfedd9a32e4 move
DMA_SUCCESS to DMA_COMPLETE. edma should properly namespace its defines and
needs a future fix

Reported-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 arch/arm/common/edma.c             | 4 ++--
 drivers/dma/edma.c                 | 4 ++--
 include/linux/platform_data/edma.h | 8 ++++----
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/arm/common/edma.c b/arch/arm/common/edma.c
index 8e1a0245907f..41bca32409fc 100644
--- a/arch/arm/common/edma.c
+++ b/arch/arm/common/edma.c
@@ -404,7 +404,7 @@ static irqreturn_t dma_irq_handler(int irq, void *data)
 					BIT(slot));
 			if (edma_cc[ctlr]->intr_data[channel].callback)
 				edma_cc[ctlr]->intr_data[channel].callback(
-					channel, DMA_COMPLETE,
+					channel, EDMA_DMA_COMPLETE,
 					edma_cc[ctlr]->intr_data[channel].data);
 		}
 	} while (sh_ipr);
@@ -459,7 +459,7 @@ static irqreturn_t dma_ccerr_handler(int irq, void *data)
 								callback) {
 						edma_cc[ctlr]->intr_data[k].
 						callback(k,
-						DMA_CC_ERROR,
+						EDMA_DMA_CC_ERROR,
 						edma_cc[ctlr]->intr_data
 						[k].data);
 					}
diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index 29fa35807f09..cb69f3a674e0 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -407,7 +407,7 @@ static void edma_callback(unsigned ch_num, u16 ch_status, void *data)
 	edma_pause(echan->ch_num);
 
 	switch (ch_status) {
-	case DMA_COMPLETE:
+	case EDMA_DMA_COMPLETE:
 		spin_lock_irqsave(&echan->vchan.lock, flags);
 
 		edesc = echan->edesc;
@@ -426,7 +426,7 @@ static void edma_callback(unsigned ch_num, u16 ch_status, void *data)
 		spin_unlock_irqrestore(&echan->vchan.lock, flags);
 
 		break;
-	case DMA_CC_ERROR:
+	case EDMA_DMA_CC_ERROR:
 		spin_lock_irqsave(&echan->vchan.lock, flags);
 
 		edma_read_slot(EDMA_CHAN_SLOT(echan->slot[0]), &p);
diff --git a/include/linux/platform_data/edma.h b/include/linux/platform_data/edma.h
index 179fb91bb5f2..f50821cb64be 100644
--- a/include/linux/platform_data/edma.h
+++ b/include/linux/platform_data/edma.h
@@ -67,10 +67,10 @@ struct edmacc_param {
 #define ITCCHEN		BIT(23)
 
 /*ch_status paramater of callback function possible values*/
-#define DMA_COMPLETE 1
-#define DMA_CC_ERROR 2
-#define DMA_TC1_ERROR 3
-#define DMA_TC2_ERROR 4
+#define EDMA_DMA_COMPLETE 1
+#define EDMA_DMA_CC_ERROR 2
+#define EDMA_DMA_TC1_ERROR 3
+#define EDMA_DMA_TC2_ERROR 4
 
 enum address_mode {
 	INCR = 0,
-- 
cgit 


From 6ef4d2eaf5a46d4ab6db02612b5e883b834017b8 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Wed, 30 Oct 2013 09:11:28 +0800
Subject: kernel/system_certificate.S: use real contents instead of macro
 GLOBAL()

If a macro is only used within 2 times, and also its contents are
within 2 lines, recommend to expand it to shrink code line.

For our case, the macro is not portable either: some architectures'
assembler may use another character to mark newline in a macro (e.g.
'`' for arc), which will cause issue.

If still want to use macro and let it portable enough, it will also
need include additional header file (e.g "#include <linux/linkage.h>",
although it also need be fixed).


Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: David Howells <dhowells@redhat.com>
---
 kernel/system_certificates.S | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/kernel/system_certificates.S b/kernel/system_certificates.S
index 552d47b2d463..4aef390671cb 100644
--- a/kernel/system_certificates.S
+++ b/kernel/system_certificates.S
@@ -1,12 +1,10 @@
 #include <linux/export.h>
 #include <linux/init.h>
 
-#define GLOBAL(name)	\
-	.globl VMLINUX_SYMBOL(name);	\
-	VMLINUX_SYMBOL(name):
-
 	__INITRODATA
 
-GLOBAL(system_certificate_list)
+	.globl VMLINUX_SYMBOL(system_certificate_list)
+VMLINUX_SYMBOL(system_certificate_list):
 	.incbin "kernel/x509_certificate_list"
-GLOBAL(system_certificate_list_end)
+	.globl VMLINUX_SYMBOL(system_certificate_list_end)
+VMLINUX_SYMBOL(system_certificate_list_end):
-- 
cgit 


From 0abda6fa81dced031e3df31ac29bfb253549c2d1 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Mon, 28 Oct 2013 17:47:53 +0100
Subject: HID: wiimote: fix inverted pro-controller axes

The analog-stick vertical axes are inverted. Fix that! Otherwise, games
and other gamepad applications need to carry their own fixups (which they
thankfully haven't done, yet).

Cc: <stable@vger.kernel.org> # 3.11+
Reported-by: Rafael Brune <mail@rbrune.de>
Tested-by: Rafael Brune <mail@rbrune.de>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-wiimote-modules.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/hid/hid-wiimote-modules.c b/drivers/hid/hid-wiimote-modules.c
index 71adf9e60b13..e30567af42ed 100644
--- a/drivers/hid/hid-wiimote-modules.c
+++ b/drivers/hid/hid-wiimote-modules.c
@@ -1656,9 +1656,9 @@ static void wiimod_pro_in_ext(struct wiimote_data *wdata, const __u8 *ext)
 	ry = (ext[6] & 0xff) | ((ext[7] & 0x0f) << 8);
 
 	input_report_abs(wdata->extension.input, ABS_X, lx - 0x800);
-	input_report_abs(wdata->extension.input, ABS_Y, ly - 0x800);
+	input_report_abs(wdata->extension.input, ABS_Y, 0x800 - ly);
 	input_report_abs(wdata->extension.input, ABS_RX, rx - 0x800);
-	input_report_abs(wdata->extension.input, ABS_RY, ry - 0x800);
+	input_report_abs(wdata->extension.input, ABS_RY, 0x800 - ry);
 
 	input_report_key(wdata->extension.input,
 			 wiimod_pro_map[WIIMOD_PRO_KEY_RIGHT],
-- 
cgit 


From 08072dde333c2f09114a01b0bd32be52ecce195b Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Mon, 28 Oct 2013 17:49:20 +0100
Subject: HID: wiimote: add pro-controller analog stick calibration

The analog sticks of the pro-controller might report slightly off values.
To guarantee a uniform setup, we now calibrate analog-stick values during
pro-controller setup.

Unfortunately, the pro-controller fails during normal EEPROM reads and I
couldn't figure out whether there are any calibration values stored on the
device. Therefore, we now use the first values reported by the device (iff
they are not _way_ off, which would indicate movement) to initialize the
calibration values. To allow users to change this calibration data, we
provide a pro_calib sysfs attribute.

We also change the "flat" values so user-space correctly smoothes our
data. It makes slightly off zero-positions less visible while still
guaranteeing highly precise movement reports. Note that the pro controller
reports zero-positions in a quite huge range (at least: -100 to +100).

Reported-by: Rafael Brune <mail@rbrune.de>
Tested-by: Rafael Brune <mail@rbrune.de>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 Documentation/ABI/testing/sysfs-driver-hid-wiimote |  18 ++++
 drivers/hid/hid-wiimote-modules.c                  | 117 +++++++++++++++++++--
 drivers/hid/hid-wiimote.h                          |   2 +
 3 files changed, 128 insertions(+), 9 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-driver-hid-wiimote b/Documentation/ABI/testing/sysfs-driver-hid-wiimote
index ed5dd567d397..39dfa5cb1cc5 100644
--- a/Documentation/ABI/testing/sysfs-driver-hid-wiimote
+++ b/Documentation/ABI/testing/sysfs-driver-hid-wiimote
@@ -57,3 +57,21 @@ Description:	This attribute is only provided if the device was detected as a
 		Calibration data is already applied by the kernel to all input
 		values but may be used by user-space to perform other
 		transformations.
+
+What:		/sys/bus/hid/drivers/wiimote/<dev>/pro_calib
+Date:		October 2013
+KernelVersion:	3.13
+Contact:	David Herrmann <dh.herrmann@gmail.com>
+Description:	This attribute is only provided if the device was detected as a
+		pro-controller. It provides a single line with 4 calibration
+		values for all 4 analog sticks. Format is: "x1:y1 x2:y2". Data
+		is prefixed with a +/-. Each value is a signed 16bit number.
+		Data is encoded as decimal numbers and specifies the offsets of
+		the analog sticks of the pro-controller.
+		Calibration data is already applied by the kernel to all input
+		values but may be used by user-space to perform other
+		transformations.
+		Calibration data is detected by the kernel during device setup.
+		You can write "scan\n" into this file to re-trigger calibration.
+		You can also write data directly in the form "x1:y1 x2:y2" to
+		set the calibration values manually.
diff --git a/drivers/hid/hid-wiimote-modules.c b/drivers/hid/hid-wiimote-modules.c
index e30567af42ed..6b61f01e01e7 100644
--- a/drivers/hid/hid-wiimote-modules.c
+++ b/drivers/hid/hid-wiimote-modules.c
@@ -1655,10 +1655,39 @@ static void wiimod_pro_in_ext(struct wiimote_data *wdata, const __u8 *ext)
 	ly = (ext[4] & 0xff) | ((ext[5] & 0x0f) << 8);
 	ry = (ext[6] & 0xff) | ((ext[7] & 0x0f) << 8);
 
-	input_report_abs(wdata->extension.input, ABS_X, lx - 0x800);
-	input_report_abs(wdata->extension.input, ABS_Y, 0x800 - ly);
-	input_report_abs(wdata->extension.input, ABS_RX, rx - 0x800);
-	input_report_abs(wdata->extension.input, ABS_RY, 0x800 - ry);
+	/* zero-point offsets */
+	lx -= 0x800;
+	ly = 0x800 - ly;
+	rx -= 0x800;
+	ry = 0x800 - ry;
+
+	/* Trivial automatic calibration. We don't know any calibration data
+	 * in the EEPROM so we must use the first report to calibrate the
+	 * null-position of the analog sticks. Users can retrigger calibration
+	 * via sysfs, or set it explicitly. If data is off more than abs(500),
+	 * we skip calibration as the sticks are likely to be moved already. */
+	if (!(wdata->state.flags & WIIPROTO_FLAG_PRO_CALIB_DONE)) {
+		wdata->state.flags |= WIIPROTO_FLAG_PRO_CALIB_DONE;
+		if (abs(lx) < 500)
+			wdata->state.calib_pro_sticks[0] = -lx;
+		if (abs(ly) < 500)
+			wdata->state.calib_pro_sticks[1] = -ly;
+		if (abs(rx) < 500)
+			wdata->state.calib_pro_sticks[2] = -rx;
+		if (abs(ry) < 500)
+			wdata->state.calib_pro_sticks[3] = -ry;
+	}
+
+	/* apply calibration data */
+	lx += wdata->state.calib_pro_sticks[0];
+	ly += wdata->state.calib_pro_sticks[1];
+	rx += wdata->state.calib_pro_sticks[2];
+	ry += wdata->state.calib_pro_sticks[3];
+
+	input_report_abs(wdata->extension.input, ABS_X, lx);
+	input_report_abs(wdata->extension.input, ABS_Y, ly);
+	input_report_abs(wdata->extension.input, ABS_RX, rx);
+	input_report_abs(wdata->extension.input, ABS_RY, ry);
 
 	input_report_key(wdata->extension.input,
 			 wiimod_pro_map[WIIMOD_PRO_KEY_RIGHT],
@@ -1766,12 +1795,70 @@ static int wiimod_pro_play(struct input_dev *dev, void *data,
 	return 0;
 }
 
+static ssize_t wiimod_pro_calib_show(struct device *dev,
+				     struct device_attribute *attr,
+				     char *out)
+{
+	struct wiimote_data *wdata = dev_to_wii(dev);
+	int r;
+
+	r = 0;
+	r += sprintf(&out[r], "%+06hd:", wdata->state.calib_pro_sticks[0]);
+	r += sprintf(&out[r], "%+06hd ", wdata->state.calib_pro_sticks[1]);
+	r += sprintf(&out[r], "%+06hd:", wdata->state.calib_pro_sticks[2]);
+	r += sprintf(&out[r], "%+06hd\n", wdata->state.calib_pro_sticks[3]);
+
+	return r;
+}
+
+static ssize_t wiimod_pro_calib_store(struct device *dev,
+				      struct device_attribute *attr,
+				      const char *buf, size_t count)
+{
+	struct wiimote_data *wdata = dev_to_wii(dev);
+	int r;
+	s16 x1, y1, x2, y2;
+
+	if (!strncmp(buf, "scan\n", 5)) {
+		spin_lock_irq(&wdata->state.lock);
+		wdata->state.flags &= ~WIIPROTO_FLAG_PRO_CALIB_DONE;
+		spin_unlock_irq(&wdata->state.lock);
+	} else {
+		r = sscanf(buf, "%hd:%hd %hd:%hd", &x1, &y1, &x2, &y2);
+		if (r != 4)
+			return -EINVAL;
+
+		spin_lock_irq(&wdata->state.lock);
+		wdata->state.flags |= WIIPROTO_FLAG_PRO_CALIB_DONE;
+		spin_unlock_irq(&wdata->state.lock);
+
+		wdata->state.calib_pro_sticks[0] = x1;
+		wdata->state.calib_pro_sticks[1] = y1;
+		wdata->state.calib_pro_sticks[2] = x2;
+		wdata->state.calib_pro_sticks[3] = y2;
+	}
+
+	return strnlen(buf, PAGE_SIZE);
+}
+
+static DEVICE_ATTR(pro_calib, S_IRUGO|S_IWUSR|S_IWGRP, wiimod_pro_calib_show,
+		   wiimod_pro_calib_store);
+
 static int wiimod_pro_probe(const struct wiimod_ops *ops,
 			    struct wiimote_data *wdata)
 {
 	int ret, i;
+	unsigned long flags;
 
 	INIT_WORK(&wdata->rumble_worker, wiimod_rumble_worker);
+	wdata->state.calib_pro_sticks[0] = 0;
+	wdata->state.calib_pro_sticks[1] = 0;
+	wdata->state.calib_pro_sticks[2] = 0;
+	wdata->state.calib_pro_sticks[3] = 0;
+
+	spin_lock_irqsave(&wdata->state.lock, flags);
+	wdata->state.flags &= ~WIIPROTO_FLAG_PRO_CALIB_DONE;
+	spin_unlock_irqrestore(&wdata->state.lock, flags);
 
 	wdata->extension.input = input_allocate_device();
 	if (!wdata->extension.input)
@@ -1786,6 +1873,13 @@ static int wiimod_pro_probe(const struct wiimod_ops *ops,
 		goto err_free;
 	}
 
+	ret = device_create_file(&wdata->hdev->dev,
+				 &dev_attr_pro_calib);
+	if (ret) {
+		hid_err(wdata->hdev, "cannot create sysfs attribute\n");
+		goto err_free;
+	}
+
 	wdata->extension.input->open = wiimod_pro_open;
 	wdata->extension.input->close = wiimod_pro_close;
 	wdata->extension.input->dev.parent = &wdata->hdev->dev;
@@ -1806,20 +1900,23 @@ static int wiimod_pro_probe(const struct wiimod_ops *ops,
 	set_bit(ABS_RX, wdata->extension.input->absbit);
 	set_bit(ABS_RY, wdata->extension.input->absbit);
 	input_set_abs_params(wdata->extension.input,
-			     ABS_X, -0x800, 0x800, 2, 4);
+			     ABS_X, -0x400, 0x400, 4, 100);
 	input_set_abs_params(wdata->extension.input,
-			     ABS_Y, -0x800, 0x800, 2, 4);
+			     ABS_Y, -0x400, 0x400, 4, 100);
 	input_set_abs_params(wdata->extension.input,
-			     ABS_RX, -0x800, 0x800, 2, 4);
+			     ABS_RX, -0x400, 0x400, 4, 100);
 	input_set_abs_params(wdata->extension.input,
-			     ABS_RY, -0x800, 0x800, 2, 4);
+			     ABS_RY, -0x400, 0x400, 4, 100);
 
 	ret = input_register_device(wdata->extension.input);
 	if (ret)
-		goto err_free;
+		goto err_file;
 
 	return 0;
 
+err_file:
+	device_remove_file(&wdata->hdev->dev,
+			   &dev_attr_pro_calib);
 err_free:
 	input_free_device(wdata->extension.input);
 	wdata->extension.input = NULL;
@@ -1837,6 +1934,8 @@ static void wiimod_pro_remove(const struct wiimod_ops *ops,
 	input_unregister_device(wdata->extension.input);
 	wdata->extension.input = NULL;
 	cancel_work_sync(&wdata->rumble_worker);
+	device_remove_file(&wdata->hdev->dev,
+			   &dev_attr_pro_calib);
 
 	spin_lock_irqsave(&wdata->state.lock, flags);
 	wiiproto_req_rumble(wdata, 0);
diff --git a/drivers/hid/hid-wiimote.h b/drivers/hid/hid-wiimote.h
index 75db0c400037..03065f1917fc 100644
--- a/drivers/hid/hid-wiimote.h
+++ b/drivers/hid/hid-wiimote.h
@@ -46,6 +46,7 @@
 #define WIIPROTO_FLAG_DRM_LOCKED	0x8000
 #define WIIPROTO_FLAG_BUILTIN_MP	0x010000
 #define WIIPROTO_FLAG_NO_MP		0x020000
+#define WIIPROTO_FLAG_PRO_CALIB_DONE	0x040000
 
 #define WIIPROTO_FLAGS_LEDS (WIIPROTO_FLAG_LED1 | WIIPROTO_FLAG_LED2 | \
 					WIIPROTO_FLAG_LED3 | WIIPROTO_FLAG_LED4)
@@ -135,6 +136,7 @@ struct wiimote_state {
 
 	/* calibration/cache data */
 	__u16 calib_bboard[4][3];
+	__s16 calib_pro_sticks[4];
 	__u8 cache_rumble;
 };
 
-- 
cgit 


From 14fc4290df2fb94a28f39dab9ed32feaa5527bef Mon Sep 17 00:00:00 2001
From: Stefan Achatz <erazor_de@users.sourceforge.net>
Date: Mon, 28 Oct 2013 18:52:03 +0100
Subject: HID: roccat: add new device return value

Ryos uses a new return value for critical errors, others have been
confirmed.

Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-roccat-common.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/hid/hid-roccat-common.c b/drivers/hid/hid-roccat-common.c
index 74f704032627..e84089998900 100644
--- a/drivers/hid/hid-roccat-common.c
+++ b/drivers/hid/hid-roccat-common.c
@@ -65,10 +65,11 @@ int roccat_common2_send(struct usb_device *usb_dev, uint report_id,
 EXPORT_SYMBOL_GPL(roccat_common2_send);
 
 enum roccat_common2_control_states {
-	ROCCAT_COMMON_CONTROL_STATUS_OVERLOAD = 0,
+	ROCCAT_COMMON_CONTROL_STATUS_CRITICAL = 0,
 	ROCCAT_COMMON_CONTROL_STATUS_OK = 1,
 	ROCCAT_COMMON_CONTROL_STATUS_INVALID = 2,
-	ROCCAT_COMMON_CONTROL_STATUS_WAIT = 3,
+	ROCCAT_COMMON_CONTROL_STATUS_BUSY = 3,
+	ROCCAT_COMMON_CONTROL_STATUS_CRITICAL_NEW = 4,
 };
 
 static int roccat_common2_receive_control_status(struct usb_device *usb_dev)
@@ -88,13 +89,12 @@ static int roccat_common2_receive_control_status(struct usb_device *usb_dev)
 		switch (control.value) {
 		case ROCCAT_COMMON_CONTROL_STATUS_OK:
 			return 0;
-		case ROCCAT_COMMON_CONTROL_STATUS_WAIT:
+		case ROCCAT_COMMON_CONTROL_STATUS_BUSY:
 			msleep(500);
 			continue;
 		case ROCCAT_COMMON_CONTROL_STATUS_INVALID:
-
-		case ROCCAT_COMMON_CONTROL_STATUS_OVERLOAD:
-			/* seems to be critical - replug necessary */
+		case ROCCAT_COMMON_CONTROL_STATUS_CRITICAL:
+		case ROCCAT_COMMON_CONTROL_STATUS_CRITICAL_NEW:
 			return -EINVAL;
 		default:
 			dev_err(&usb_dev->dev,
-- 
cgit 


From 71304f5a269abc25b9277744dfd6925f3e29e26a Mon Sep 17 00:00:00 2001
From: Stefan Achatz <erazor_de@users.sourceforge.net>
Date: Mon, 28 Oct 2013 18:52:05 +0100
Subject: HID: roccat: generalize some common code

Reduced some duplicate code by moving it to hid-roccat-common.

Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-roccat-common.c   |  53 +++++++++++++
 drivers/hid/hid-roccat-common.h   |  62 +++++++++++++++
 drivers/hid/hid-roccat-konepure.c | 158 +++++++++-----------------------------
 drivers/hid/hid-roccat-konepure.h |  72 -----------------
 drivers/hid/hid-roccat-savu.c     | 123 ++++-------------------------
 drivers/hid/hid-roccat-savu.h     |  32 --------
 6 files changed, 167 insertions(+), 333 deletions(-)
 delete mode 100644 drivers/hid/hid-roccat-konepure.h

diff --git a/drivers/hid/hid-roccat-common.c b/drivers/hid/hid-roccat-common.c
index e84089998900..02e28e9f4ea7 100644
--- a/drivers/hid/hid-roccat-common.c
+++ b/drivers/hid/hid-roccat-common.c
@@ -122,6 +122,59 @@ int roccat_common2_send_with_status(struct usb_device *usb_dev,
 }
 EXPORT_SYMBOL_GPL(roccat_common2_send_with_status);
 
+int roccat_common2_device_init_struct(struct usb_device *usb_dev,
+		struct roccat_common2_device *dev)
+{
+	mutex_init(&dev->lock);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(roccat_common2_device_init_struct);
+
+ssize_t roccat_common2_sysfs_read(struct file *fp, struct kobject *kobj,
+		char *buf, loff_t off, size_t count,
+		size_t real_size, uint command)
+{
+	struct device *dev =
+			container_of(kobj, struct device, kobj)->parent->parent;
+	struct roccat_common2_device *roccat_dev = hid_get_drvdata(dev_get_drvdata(dev));
+	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
+	int retval;
+
+	if (off >= real_size)
+		return 0;
+
+	if (off != 0 || count != real_size)
+		return -EINVAL;
+
+	mutex_lock(&roccat_dev->lock);
+	retval = roccat_common2_receive(usb_dev, command, buf, real_size);
+	mutex_unlock(&roccat_dev->lock);
+
+	return retval ? retval : real_size;
+}
+EXPORT_SYMBOL_GPL(roccat_common2_sysfs_read);
+
+ssize_t roccat_common2_sysfs_write(struct file *fp, struct kobject *kobj,
+		void const *buf, loff_t off, size_t count,
+		size_t real_size, uint command)
+{
+	struct device *dev =
+			container_of(kobj, struct device, kobj)->parent->parent;
+	struct roccat_common2_device *roccat_dev = hid_get_drvdata(dev_get_drvdata(dev));
+	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
+	int retval;
+
+	if (off != 0 || count != real_size)
+		return -EINVAL;
+
+	mutex_lock(&roccat_dev->lock);
+	retval = roccat_common2_send_with_status(usb_dev, command, buf, real_size);
+	mutex_unlock(&roccat_dev->lock);
+
+	return retval ? retval : real_size;
+}
+EXPORT_SYMBOL_GPL(roccat_common2_sysfs_write);
+
 MODULE_AUTHOR("Stefan Achatz");
 MODULE_DESCRIPTION("USB Roccat common driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/hid/hid-roccat-common.h b/drivers/hid/hid-roccat-common.h
index a97746a63b70..eaa56eb7d5d1 100644
--- a/drivers/hid/hid-roccat-common.h
+++ b/drivers/hid/hid-roccat-common.h
@@ -32,4 +32,66 @@ int roccat_common2_send(struct usb_device *usb_dev, uint report_id,
 int roccat_common2_send_with_status(struct usb_device *usb_dev,
 		uint command, void const *buf, uint size);
 
+struct roccat_common2_device {
+	int roccat_claimed;
+	int chrdev_minor;
+	struct mutex lock;
+};
+
+int roccat_common2_device_init_struct(struct usb_device *usb_dev,
+		struct roccat_common2_device *dev);
+ssize_t roccat_common2_sysfs_read(struct file *fp, struct kobject *kobj,
+		char *buf, loff_t off, size_t count,
+		size_t real_size, uint command);
+ssize_t roccat_common2_sysfs_write(struct file *fp, struct kobject *kobj,
+		void const *buf, loff_t off, size_t count,
+		size_t real_size, uint command);
+
+#define ROCCAT_COMMON2_SYSFS_W(thingy, COMMAND, SIZE) \
+static ssize_t roccat_common2_sysfs_write_ ## thingy(struct file *fp, \
+		struct kobject *kobj, struct bin_attribute *attr, char *buf, \
+		loff_t off, size_t count) \
+{ \
+	return roccat_common2_sysfs_write(fp, kobj, buf, off, count, \
+			SIZE, COMMAND); \
+}
+
+#define ROCCAT_COMMON2_SYSFS_R(thingy, COMMAND, SIZE) \
+static ssize_t roccat_common2_sysfs_read_ ## thingy(struct file *fp, \
+		struct kobject *kobj, struct bin_attribute *attr, char *buf, \
+		loff_t off, size_t count) \
+{ \
+	return roccat_common2_sysfs_read(fp, kobj, buf, off, count, \
+			SIZE, COMMAND); \
+}
+
+#define ROCCAT_COMMON2_SYSFS_RW(thingy, COMMAND, SIZE) \
+ROCCAT_COMMON2_SYSFS_W(thingy, COMMAND, SIZE) \
+ROCCAT_COMMON2_SYSFS_R(thingy, COMMAND, SIZE)
+
+#define ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(thingy, COMMAND, SIZE) \
+ROCCAT_COMMON2_SYSFS_RW(thingy, COMMAND, SIZE); \
+static struct bin_attribute bin_attr_ ## thingy = { \
+	.attr = { .name = #thingy, .mode = 0660 }, \
+	.size = SIZE, \
+	.read = roccat_common2_sysfs_read_ ## thingy, \
+	.write = roccat_common2_sysfs_write_ ## thingy \
+}
+
+#define ROCCAT_COMMON2_BIN_ATTRIBUTE_R(thingy, COMMAND, SIZE) \
+ROCCAT_COMMON2_SYSFS_R(thingy, COMMAND, SIZE); \
+static struct bin_attribute bin_attr_ ## thingy = { \
+	.attr = { .name = #thingy, .mode = 0440 }, \
+	.size = SIZE, \
+	.read = roccat_common2_sysfs_read_ ## thingy, \
+}
+
+#define ROCCAT_COMMON2_BIN_ATTRIBUTE_W(thingy, COMMAND, SIZE) \
+ROCCAT_COMMON2_SYSFS_W(thingy, COMMAND, SIZE); \
+static struct bin_attribute bin_attr_ ## thingy = { \
+	.attr = { .name = #thingy, .mode = 0220 }, \
+	.size = SIZE, \
+	.write = roccat_common2_sysfs_write_ ## thingy \
+}
+
 #endif
diff --git a/drivers/hid/hid-roccat-konepure.c b/drivers/hid/hid-roccat-konepure.c
index 99a605ebb665..07de2f9014c6 100644
--- a/drivers/hid/hid-roccat-konepure.c
+++ b/drivers/hid/hid-roccat-konepure.c
@@ -15,6 +15,7 @@
  * Roccat KonePure is a smaller version of KoneXTD with less buttons and lights.
  */
 
+#include <linux/types.h>
 #include <linux/device.h>
 #include <linux/input.h>
 #include <linux/hid.h>
@@ -23,128 +24,50 @@
 #include <linux/hid-roccat.h>
 #include "hid-ids.h"
 #include "hid-roccat-common.h"
-#include "hid-roccat-konepure.h"
 
-static struct class *konepure_class;
-
-static ssize_t konepure_sysfs_read(struct file *fp, struct kobject *kobj,
-		char *buf, loff_t off, size_t count,
-		size_t real_size, uint command)
-{
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
-	struct konepure_device *konepure = hid_get_drvdata(dev_get_drvdata(dev));
-	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
-	int retval;
-
-	if (off >= real_size)
-		return 0;
-
-	if (off != 0 || count != real_size)
-		return -EINVAL;
-
-	mutex_lock(&konepure->konepure_lock);
-	retval = roccat_common2_receive(usb_dev, command, buf, real_size);
-	mutex_unlock(&konepure->konepure_lock);
-
-	return retval ? retval : real_size;
-}
-
-static ssize_t konepure_sysfs_write(struct file *fp, struct kobject *kobj,
-		void const *buf, loff_t off, size_t count,
-		size_t real_size, uint command)
-{
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
-	struct konepure_device *konepure = hid_get_drvdata(dev_get_drvdata(dev));
-	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
-	int retval;
-
-	if (off != 0 || count != real_size)
-		return -EINVAL;
-
-	mutex_lock(&konepure->konepure_lock);
-	retval = roccat_common2_send_with_status(usb_dev, command,
-			(void *)buf, real_size);
-	mutex_unlock(&konepure->konepure_lock);
-
-	return retval ? retval : real_size;
-}
-
-#define KONEPURE_SYSFS_W(thingy, THINGY) \
-static ssize_t konepure_sysfs_write_ ## thingy(struct file *fp, \
-		struct kobject *kobj, struct bin_attribute *attr, char *buf, \
-		loff_t off, size_t count) \
-{ \
-	return konepure_sysfs_write(fp, kobj, buf, off, count, \
-			KONEPURE_SIZE_ ## THINGY, KONEPURE_COMMAND_ ## THINGY); \
-}
-
-#define KONEPURE_SYSFS_R(thingy, THINGY) \
-static ssize_t konepure_sysfs_read_ ## thingy(struct file *fp, \
-		struct kobject *kobj, struct bin_attribute *attr, char *buf, \
-		loff_t off, size_t count) \
-{ \
-	return konepure_sysfs_read(fp, kobj, buf, off, count, \
-			KONEPURE_SIZE_ ## THINGY, KONEPURE_COMMAND_ ## THINGY); \
-}
+enum {
+	KONEPURE_MOUSE_REPORT_NUMBER_BUTTON = 3,
+};
 
-#define KONEPURE_SYSFS_RW(thingy, THINGY) \
-KONEPURE_SYSFS_W(thingy, THINGY) \
-KONEPURE_SYSFS_R(thingy, THINGY)
-
-#define KONEPURE_BIN_ATTRIBUTE_RW(thingy, THINGY) \
-KONEPURE_SYSFS_RW(thingy, THINGY); \
-static struct bin_attribute bin_attr_##thingy = { \
-	.attr = { .name = #thingy, .mode = 0660 }, \
-	.size = KONEPURE_SIZE_ ## THINGY, \
-	.read = konepure_sysfs_read_ ## thingy, \
-	.write = konepure_sysfs_write_ ## thingy \
-}
+struct konepure_mouse_report_button {
+	uint8_t report_number; /* always KONEPURE_MOUSE_REPORT_NUMBER_BUTTON */
+	uint8_t zero;
+	uint8_t type;
+	uint8_t data1;
+	uint8_t data2;
+	uint8_t zero2;
+	uint8_t unknown[2];
+} __packed;
 
-#define KONEPURE_BIN_ATTRIBUTE_R(thingy, THINGY) \
-KONEPURE_SYSFS_R(thingy, THINGY); \
-static struct bin_attribute bin_attr_##thingy = { \
-	.attr = { .name = #thingy, .mode = 0440 }, \
-	.size = KONEPURE_SIZE_ ## THINGY, \
-	.read = konepure_sysfs_read_ ## thingy, \
-}
-
-#define KONEPURE_BIN_ATTRIBUTE_W(thingy, THINGY) \
-KONEPURE_SYSFS_W(thingy, THINGY); \
-static struct bin_attribute bin_attr_##thingy = { \
-	.attr = { .name = #thingy, .mode = 0220 }, \
-	.size = KONEPURE_SIZE_ ## THINGY, \
-	.write = konepure_sysfs_write_ ## thingy \
-}
+static struct class *konepure_class;
 
-KONEPURE_BIN_ATTRIBUTE_RW(actual_profile, ACTUAL_PROFILE);
-KONEPURE_BIN_ATTRIBUTE_RW(info, INFO);
-KONEPURE_BIN_ATTRIBUTE_RW(sensor, SENSOR);
-KONEPURE_BIN_ATTRIBUTE_RW(tcu, TCU);
-KONEPURE_BIN_ATTRIBUTE_RW(profile_settings, PROFILE_SETTINGS);
-KONEPURE_BIN_ATTRIBUTE_RW(profile_buttons, PROFILE_BUTTONS);
-KONEPURE_BIN_ATTRIBUTE_W(control, CONTROL);
-KONEPURE_BIN_ATTRIBUTE_W(talk, TALK);
-KONEPURE_BIN_ATTRIBUTE_W(macro, MACRO);
-KONEPURE_BIN_ATTRIBUTE_R(tcu_image, TCU_IMAGE);
-
-static struct bin_attribute *konepure_bin_attributes[] = {
+ROCCAT_COMMON2_BIN_ATTRIBUTE_W(control, 0x04, 0x03);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(actual_profile, 0x05, 0x03);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(profile_settings, 0x06, 0x1f);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(profile_buttons, 0x07, 0x3b);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_W(macro, 0x08, 0x0822);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(info, 0x09, 0x06);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(tcu, 0x0c, 0x04);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_R(tcu_image, 0x0c, 0x0404);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(sensor, 0x0f, 0x06);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_W(talk, 0x10, 0x10);
+
+static struct bin_attribute *konepure_bin_attrs[] = {
 	&bin_attr_actual_profile,
+	&bin_attr_control,
 	&bin_attr_info,
+	&bin_attr_talk,
+	&bin_attr_macro,
 	&bin_attr_sensor,
 	&bin_attr_tcu,
+	&bin_attr_tcu_image,
 	&bin_attr_profile_settings,
 	&bin_attr_profile_buttons,
-	&bin_attr_control,
-	&bin_attr_talk,
-	&bin_attr_macro,
-	&bin_attr_tcu_image,
 	NULL,
 };
 
 static const struct attribute_group konepure_group = {
-	.bin_attrs = konepure_bin_attributes,
+	.bin_attrs = konepure_bin_attrs,
 };
 
 static const struct attribute_group *konepure_groups[] = {
@@ -152,20 +75,11 @@ static const struct attribute_group *konepure_groups[] = {
 	NULL,
 };
 
-
-static int konepure_init_konepure_device_struct(struct usb_device *usb_dev,
-		struct konepure_device *konepure)
-{
-	mutex_init(&konepure->konepure_lock);
-
-	return 0;
-}
-
 static int konepure_init_specials(struct hid_device *hdev)
 {
 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 	struct usb_device *usb_dev = interface_to_usbdev(intf);
-	struct konepure_device *konepure;
+	struct roccat_common2_device *konepure;
 	int retval;
 
 	if (intf->cur_altsetting->desc.bInterfaceProtocol
@@ -181,9 +95,9 @@ static int konepure_init_specials(struct hid_device *hdev)
 	}
 	hid_set_drvdata(hdev, konepure);
 
-	retval = konepure_init_konepure_device_struct(usb_dev, konepure);
+	retval = roccat_common2_device_init_struct(usb_dev, konepure);
 	if (retval) {
-		hid_err(hdev, "couldn't init struct konepure_device\n");
+		hid_err(hdev, "couldn't init KonePure device\n");
 		goto exit_free;
 	}
 
@@ -205,7 +119,7 @@ exit_free:
 static void konepure_remove_specials(struct hid_device *hdev)
 {
 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
-	struct konepure_device *konepure;
+	struct roccat_common2_device *konepure;
 
 	if (intf->cur_altsetting->desc.bInterfaceProtocol
 			!= USB_INTERFACE_PROTOCOL_MOUSE)
@@ -258,7 +172,7 @@ static int konepure_raw_event(struct hid_device *hdev,
 		struct hid_report *report, u8 *data, int size)
 {
 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
-	struct konepure_device *konepure = hid_get_drvdata(hdev);
+	struct roccat_common2_device *konepure = hid_get_drvdata(hdev);
 
 	if (intf->cur_altsetting->desc.bInterfaceProtocol
 			!= USB_INTERFACE_PROTOCOL_MOUSE)
diff --git a/drivers/hid/hid-roccat-konepure.h b/drivers/hid/hid-roccat-konepure.h
deleted file mode 100644
index 2cd24e93dfd6..000000000000
--- a/drivers/hid/hid-roccat-konepure.h
+++ /dev/null
@@ -1,72 +0,0 @@
-#ifndef __HID_ROCCAT_KONEPURE_H
-#define __HID_ROCCAT_KONEPURE_H
-
-/*
- * Copyright (c) 2012 Stefan Achatz <erazor_de@users.sourceforge.net>
- */
-
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- */
-
-#include <linux/types.h>
-
-enum {
-	KONEPURE_SIZE_ACTUAL_PROFILE = 0x03,
-	KONEPURE_SIZE_CONTROL = 0x03,
-	KONEPURE_SIZE_FIRMWARE_WRITE = 0x0402,
-	KONEPURE_SIZE_INFO = 0x06,
-	KONEPURE_SIZE_MACRO = 0x0822,
-	KONEPURE_SIZE_PROFILE_SETTINGS = 0x1f,
-	KONEPURE_SIZE_PROFILE_BUTTONS = 0x3b,
-	KONEPURE_SIZE_SENSOR = 0x06,
-	KONEPURE_SIZE_TALK = 0x10,
-	KONEPURE_SIZE_TCU = 0x04,
-	KONEPURE_SIZE_TCU_IMAGE = 0x0404,
-};
-
-enum konepure_control_requests {
-	KONEPURE_CONTROL_REQUEST_GENERAL = 0x80,
-	KONEPURE_CONTROL_REQUEST_BUTTONS = 0x90,
-};
-
-enum konepure_commands {
-	KONEPURE_COMMAND_CONTROL = 0x04,
-	KONEPURE_COMMAND_ACTUAL_PROFILE = 0x05,
-	KONEPURE_COMMAND_PROFILE_SETTINGS = 0x06,
-	KONEPURE_COMMAND_PROFILE_BUTTONS = 0x07,
-	KONEPURE_COMMAND_MACRO = 0x08,
-	KONEPURE_COMMAND_INFO = 0x09,
-	KONEPURE_COMMAND_TCU = 0x0c,
-	KONEPURE_COMMAND_TCU_IMAGE = 0x0c,
-	KONEPURE_COMMAND_E = 0x0e,
-	KONEPURE_COMMAND_SENSOR = 0x0f,
-	KONEPURE_COMMAND_TALK = 0x10,
-	KONEPURE_COMMAND_FIRMWARE_WRITE = 0x1b,
-	KONEPURE_COMMAND_FIRMWARE_WRITE_CONTROL = 0x1c,
-};
-
-enum {
-	KONEPURE_MOUSE_REPORT_NUMBER_BUTTON = 3,
-};
-
-struct konepure_mouse_report_button {
-	uint8_t report_number; /* always KONEPURE_MOUSE_REPORT_NUMBER_BUTTON */
-	uint8_t zero;
-	uint8_t type;
-	uint8_t data1;
-	uint8_t data2;
-	uint8_t zero2;
-	uint8_t unknown[2];
-} __packed;
-
-struct konepure_device {
-	int roccat_claimed;
-	int chrdev_minor;
-	struct mutex konepure_lock;
-};
-
-#endif
diff --git a/drivers/hid/hid-roccat-savu.c b/drivers/hid/hid-roccat-savu.c
index 0332267199d5..6dbf6e04dce7 100644
--- a/drivers/hid/hid-roccat-savu.c
+++ b/drivers/hid/hid-roccat-savu.c
@@ -27,98 +27,15 @@
 
 static struct class *savu_class;
 
-static ssize_t savu_sysfs_read(struct file *fp, struct kobject *kobj,
-		char *buf, loff_t off, size_t count,
-		size_t real_size, uint command)
-{
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
-	struct savu_device *savu = hid_get_drvdata(dev_get_drvdata(dev));
-	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
-	int retval;
-
-	if (off >= real_size)
-		return 0;
-
-	if (off != 0 || count != real_size)
-		return -EINVAL;
-
-	mutex_lock(&savu->savu_lock);
-	retval = roccat_common2_receive(usb_dev, command, buf, real_size);
-	mutex_unlock(&savu->savu_lock);
-
-	return retval ? retval : real_size;
-}
-
-static ssize_t savu_sysfs_write(struct file *fp, struct kobject *kobj,
-		void const *buf, loff_t off, size_t count,
-		size_t real_size, uint command)
-{
-	struct device *dev =
-			container_of(kobj, struct device, kobj)->parent->parent;
-	struct savu_device *savu = hid_get_drvdata(dev_get_drvdata(dev));
-	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
-	int retval;
-
-	if (off != 0 || count != real_size)
-		return -EINVAL;
-
-	mutex_lock(&savu->savu_lock);
-	retval = roccat_common2_send_with_status(usb_dev, command,
-			(void *)buf, real_size);
-	mutex_unlock(&savu->savu_lock);
-
-	return retval ? retval : real_size;
-}
-
-#define SAVU_SYSFS_W(thingy, THINGY) \
-static ssize_t savu_sysfs_write_ ## thingy(struct file *fp, \
-		struct kobject *kobj, struct bin_attribute *attr, char *buf, \
-		loff_t off, size_t count) \
-{ \
-	return savu_sysfs_write(fp, kobj, buf, off, count, \
-			SAVU_SIZE_ ## THINGY, SAVU_COMMAND_ ## THINGY); \
-}
-
-#define SAVU_SYSFS_R(thingy, THINGY) \
-static ssize_t savu_sysfs_read_ ## thingy(struct file *fp, \
-		struct kobject *kobj, struct bin_attribute *attr, char *buf, \
-		loff_t off, size_t count) \
-{ \
-	return savu_sysfs_read(fp, kobj, buf, off, count, \
-			SAVU_SIZE_ ## THINGY, SAVU_COMMAND_ ## THINGY); \
-}
-
-#define SAVU_SYSFS_RW(thingy, THINGY) \
-SAVU_SYSFS_W(thingy, THINGY) \
-SAVU_SYSFS_R(thingy, THINGY)
-
-#define SAVU_BIN_ATTRIBUTE_RW(thingy, THINGY) \
-SAVU_SYSFS_RW(thingy, THINGY); \
-static struct bin_attribute bin_attr_##thingy = { \
-	.attr = { .name = #thingy, .mode = 0660 }, \
-	.size = SAVU_SIZE_ ## THINGY, \
-	.read = savu_sysfs_read_ ## thingy, \
-	.write = savu_sysfs_write_ ## thingy \
-}
-
-#define SAVU_BIN_ATTRIBUTE_W(thingy, THINGY) \
-SAVU_SYSFS_W(thingy, THINGY); \
-static struct bin_attribute bin_attr_##thingy = { \
-	.attr = { .name = #thingy, .mode = 0220 }, \
-	.size = SAVU_SIZE_ ## THINGY, \
-	.write = savu_sysfs_write_ ## thingy \
-}
-
-SAVU_BIN_ATTRIBUTE_W(control, CONTROL);
-SAVU_BIN_ATTRIBUTE_RW(profile, PROFILE);
-SAVU_BIN_ATTRIBUTE_RW(general, GENERAL);
-SAVU_BIN_ATTRIBUTE_RW(buttons, BUTTONS);
-SAVU_BIN_ATTRIBUTE_RW(macro, MACRO);
-SAVU_BIN_ATTRIBUTE_RW(info, INFO);
-SAVU_BIN_ATTRIBUTE_RW(sensor, SENSOR);
-
-static struct bin_attribute *savu_bin_attributes[] = {
+ROCCAT_COMMON2_BIN_ATTRIBUTE_W(control, 0x4, 0x03);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(profile, 0x5, 0x03);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(general, 0x6, 0x10);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(buttons, 0x7, 0x2f);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(macro, 0x8, 0x0823);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(info, 0x9, 0x08);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(sensor, 0xc, 0x04);
+
+static struct bin_attribute *savu_bin_attrs[] = {
 	&bin_attr_control,
 	&bin_attr_profile,
 	&bin_attr_general,
@@ -130,7 +47,7 @@ static struct bin_attribute *savu_bin_attributes[] = {
 };
 
 static const struct attribute_group savu_group = {
-	.bin_attrs = savu_bin_attributes,
+	.bin_attrs = savu_bin_attrs,
 };
 
 static const struct attribute_group *savu_groups[] = {
@@ -138,19 +55,11 @@ static const struct attribute_group *savu_groups[] = {
 	NULL,
 };
 
-static int savu_init_savu_device_struct(struct usb_device *usb_dev,
-		struct savu_device *savu)
-{
-	mutex_init(&savu->savu_lock);
-
-	return 0;
-}
-
 static int savu_init_specials(struct hid_device *hdev)
 {
 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
 	struct usb_device *usb_dev = interface_to_usbdev(intf);
-	struct savu_device *savu;
+	struct roccat_common2_device *savu;
 	int retval;
 
 	if (intf->cur_altsetting->desc.bInterfaceProtocol
@@ -166,9 +75,9 @@ static int savu_init_specials(struct hid_device *hdev)
 	}
 	hid_set_drvdata(hdev, savu);
 
-	retval = savu_init_savu_device_struct(usb_dev, savu);
+	retval = roccat_common2_device_init_struct(usb_dev, savu);
 	if (retval) {
-		hid_err(hdev, "couldn't init struct savu_device\n");
+		hid_err(hdev, "couldn't init Savu device\n");
 		goto exit_free;
 	}
 
@@ -190,7 +99,7 @@ exit_free:
 static void savu_remove_specials(struct hid_device *hdev)
 {
 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
-	struct savu_device *savu;
+	struct roccat_common2_device *savu;
 
 	if (intf->cur_altsetting->desc.bInterfaceProtocol
 			!= USB_INTERFACE_PROTOCOL_MOUSE)
@@ -239,7 +148,7 @@ static void savu_remove(struct hid_device *hdev)
 	hid_hw_stop(hdev);
 }
 
-static void savu_report_to_chrdev(struct savu_device const *savu,
+static void savu_report_to_chrdev(struct roccat_common2_device const *savu,
 		u8 const *data)
 {
 	struct savu_roccat_report roccat_report;
@@ -261,7 +170,7 @@ static int savu_raw_event(struct hid_device *hdev,
 		struct hid_report *report, u8 *data, int size)
 {
 	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
-	struct savu_device *savu = hid_get_drvdata(hdev);
+	struct roccat_common2_device *savu = hid_get_drvdata(hdev);
 
 	if (intf->cur_altsetting->desc.bInterfaceProtocol
 			!= USB_INTERFACE_PROTOCOL_MOUSE)
diff --git a/drivers/hid/hid-roccat-savu.h b/drivers/hid/hid-roccat-savu.h
index 9120ba72087f..d23217bd2b86 100644
--- a/drivers/hid/hid-roccat-savu.h
+++ b/drivers/hid/hid-roccat-savu.h
@@ -14,31 +14,6 @@
 
 #include <linux/types.h>
 
-enum {
-	SAVU_SIZE_CONTROL = 0x03,
-	SAVU_SIZE_PROFILE = 0x03,
-	SAVU_SIZE_GENERAL = 0x10,
-	SAVU_SIZE_BUTTONS = 0x2f,
-	SAVU_SIZE_MACRO = 0x0823,
-	SAVU_SIZE_INFO = 0x08,
-	SAVU_SIZE_SENSOR = 0x04,
-};
-
-enum savu_control_requests {
-	SAVU_CONTROL_REQUEST_GENERAL = 0x80,
-	SAVU_CONTROL_REQUEST_BUTTONS = 0x90,
-};
-
-enum savu_commands {
-	SAVU_COMMAND_CONTROL = 0x4,
-	SAVU_COMMAND_PROFILE = 0x5,
-	SAVU_COMMAND_GENERAL = 0x6,
-	SAVU_COMMAND_BUTTONS = 0x7,
-	SAVU_COMMAND_MACRO = 0x8,
-	SAVU_COMMAND_INFO = 0x9,
-	SAVU_COMMAND_SENSOR = 0xc,
-};
-
 struct savu_mouse_report_special {
 	uint8_t report_number; /* always 3 */
 	uint8_t zero;
@@ -77,11 +52,4 @@ struct savu_roccat_report {
 	uint8_t data[2];
 } __packed;
 
-struct savu_device {
-	int roccat_claimed;
-	int chrdev_minor;
-
-	struct mutex savu_lock;
-};
-
 #endif
-- 
cgit 


From 6f3a19360545bf8c646a4d079a8c023ae06838de Mon Sep 17 00:00:00 2001
From: Stefan Achatz <erazor_de@users.sourceforge.net>
Date: Mon, 28 Oct 2013 18:52:07 +0100
Subject: HID: roccat: add support for Ryos MK keyboards

Added support for 3 keyboards with increasing illumination capabilities

Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 .../ABI/testing/sysfs-driver-hid-roccat-ryos       | 178 +++++++++++++++
 drivers/hid/Makefile                               |   2 +-
 drivers/hid/hid-core.c                             |   3 +
 drivers/hid/hid-ids.h                              |   3 +
 drivers/hid/hid-roccat-ryos.c                      | 241 +++++++++++++++++++++
 5 files changed, 426 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/ABI/testing/sysfs-driver-hid-roccat-ryos
 create mode 100644 drivers/hid/hid-roccat-ryos.c

diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-ryos b/Documentation/ABI/testing/sysfs-driver-hid-roccat-ryos
new file mode 100644
index 000000000000..1d6a8cf9dc0a
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-ryos
@@ -0,0 +1,178 @@
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/ryos/roccatryos<minor>/control
+Date:		October 2013
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one select which data from which
+		profile will be	read next. The data has to be 3 bytes long.
+		This file is writeonly.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/ryos/roccatryos<minor>/profile
+Date:		October 2013
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	The mouse can store 5 profiles which can be switched by the
+		press of a button. profile holds index of actual profile.
+		This value is persistent, so its value determines the profile
+		that's active when the device is powered on next time.
+		When written, the device activates the set profile immediately.
+		The data has to be 3 bytes long.
+		The device will reject invalid data.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/ryos/roccatryos<minor>/keys_primary
+Date:		October 2013
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one set the default of all keys for
+		a specific profile. Profile index is included in written data.
+		The data has to be 125 bytes long.
+		Before reading this file, control has to be written to select
+		which profile to read.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/ryos/roccatryos<minor>/keys_function
+Date:		October 2013
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one set the function of the
+		function keys for a specific profile. Profile index is included
+		in written data. The data has to be 95 bytes long.
+		Before reading this file, control has to be written to select
+		which profile to read.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/ryos/roccatryos<minor>/keys_macro
+Date:		October 2013
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one set the function of the macro
+		keys for a specific profile. Profile index is included in
+		written data. The data has to be 35 bytes long.
+		Before reading this file, control has to be written to select
+		which profile to read.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/ryos/roccatryos<minor>/keys_thumbster
+Date:		October 2013
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one set the function of the
+		thumbster keys for a specific profile. Profile index is included
+		in written data. The data has to be 23 bytes long.
+		Before reading this file, control has to be written to select
+		which profile to read.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/ryos/roccatryos<minor>/keys_extra
+Date:		October 2013
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one set the function of the
+		capslock and function keys for a specific profile. Profile index
+		is included in written data. The data has to be 8 bytes long.
+		Before reading this file, control has to be written to select
+		which profile to read.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/ryos/roccatryos<minor>/keys_easyzone
+Date:		October 2013
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one set the function of the
+		easyzone keys for a specific profile. Profile index is included
+		in written data. The data has to be 294 bytes long.
+		Before reading this file, control has to be written to select
+		which profile to read.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/ryos/roccatryos<minor>/key_mask
+Date:		October 2013
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one deactivate certain keys like
+		windows and application keys, to prevent accidental presses.
+		Profile index for which this settings occur is included in
+		written data. The data has to be 6 bytes long.
+		Before reading this file, control has to be written to select
+		which profile to read.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/ryos/roccatryos<minor>/light
+Date:		October 2013
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one set the backlight intensity for
+		a specific profile. Profile index is included in written data.
+		This attribute is only valid for the glow and pro variant.
+		The data has to be 16 bytes long.
+		Before reading this file, control has to be written to select
+		which profile to read.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/ryos/roccatryos<minor>/macro
+Date:		October 2013
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one store macros with max 480
+		keystrokes for a specific button for a specific profile.
+		Button and profile indexes are included in written data.
+		The data has to be 2002 bytes long.
+		Before reading this file, control has to be written to select
+		which profile and key to read.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/ryos/roccatryos<minor>/info
+Date:		October 2013
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When read, this file returns general data like firmware version.
+		The data is 8 bytes long.
+		This file is readonly.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/ryos/roccatryos<minor>/reset
+Date:		October 2013
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one reset the device.
+		The data has to be 3 bytes long.
+		This file is writeonly.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/ryos/roccatryos<minor>/talk
+Date:		October 2013
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one trigger easyshift functionality
+		from the host.
+		The data has to be 16 bytes long.
+		This file is writeonly.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/ryos/roccatryos<minor>/light_control
+Date:		October 2013
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one switch between stored and custom
+		light settings.
+		This attribute is only valid for the pro variant.
+		The data has to be 8 bytes long.
+		This file is writeonly.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/ryos/roccatryos<minor>/stored_lights
+Date:		October 2013
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one set per-key lighting for different
+		layers.
+		This attribute is only valid for the pro variant.
+		The data has to be 1382 bytes long.
+		Before reading this file, control has to be written to select
+		which profile to read.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/ryos/roccatryos<minor>/custom_lights
+Date:		October 2013
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one set the actual per-key lighting.
+		This attribute is only valid for the pro variant.
+		The data has to be 20 bytes long.
+		This file is writeonly.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/ryos/roccatryos<minor>/light_macro
+Date:		October 2013
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one set a light macro that is looped
+		whenever the device gets in dimness mode.
+		This attribute is only valid for the pro variant.
+		The data has to be 2002 bytes long.
+		Before reading this file, control has to be written to select
+		which profile to read.
+Users:		http://roccat.sourceforge.net
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index a959f4aecaf5..30e44318f87f 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -95,7 +95,7 @@ obj-$(CONFIG_HID_PRIMAX)	+= hid-primax.o
 obj-$(CONFIG_HID_ROCCAT)	+= hid-roccat.o hid-roccat-common.o \
 	hid-roccat-arvo.o hid-roccat-isku.o hid-roccat-kone.o \
 	hid-roccat-koneplus.o hid-roccat-konepure.o hid-roccat-kovaplus.o \
-	hid-roccat-lua.o hid-roccat-pyra.o hid-roccat-savu.o
+	hid-roccat-lua.o hid-roccat-pyra.o hid-roccat-ryos.o hid-roccat-savu.o
 obj-$(CONFIG_HID_SAITEK)	+= hid-saitek.o
 obj-$(CONFIG_HID_SAMSUNG)	+= hid-samsung.o
 obj-$(CONFIG_HID_SMARTJOYPLUS)	+= hid-sjoy.o
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index e80da62363bc..00794229a2cf 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1811,6 +1811,9 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_GLOW) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_PRO) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
 #endif
 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index f0296a50be5f..768fafc42c87 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -726,6 +726,9 @@
 #define USB_DEVICE_ID_ROCCAT_LUA	0x2c2e
 #define USB_DEVICE_ID_ROCCAT_PYRA_WIRED	0x2c24
 #define USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS	0x2cf6
+#define USB_DEVICE_ID_ROCCAT_RYOS_MK	0x3138
+#define USB_DEVICE_ID_ROCCAT_RYOS_MK_GLOW	0x31ce
+#define USB_DEVICE_ID_ROCCAT_RYOS_MK_PRO	0x3232
 #define USB_DEVICE_ID_ROCCAT_SAVU	0x2d5a
 
 #define USB_VENDOR_ID_SAITEK		0x06a3
diff --git a/drivers/hid/hid-roccat-ryos.c b/drivers/hid/hid-roccat-ryos.c
new file mode 100644
index 000000000000..47cc8f30ff6d
--- /dev/null
+++ b/drivers/hid/hid-roccat-ryos.c
@@ -0,0 +1,241 @@
+/*
+ * Roccat Ryos driver for Linux
+ *
+ * Copyright (c) 2013 Stefan Achatz <erazor_de@users.sourceforge.net>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/types.h>
+#include <linux/device.h>
+#include <linux/input.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/hid-roccat.h>
+#include "hid-ids.h"
+#include "hid-roccat-common.h"
+
+enum {
+	RYOS_REPORT_NUMBER_SPECIAL = 3,
+	RYOS_USB_INTERFACE_PROTOCOL = 0,
+};
+
+struct ryos_report_special {
+	uint8_t number; /* RYOS_REPORT_NUMBER_SPECIAL */
+	uint8_t data[4];
+} __packed;
+
+static struct class *ryos_class;
+
+ROCCAT_COMMON2_BIN_ATTRIBUTE_W(control, 0x04, 0x03);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(profile, 0x05, 0x03);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(keys_primary, 0x06, 0x7d);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(keys_function, 0x07, 0x5f);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(keys_macro, 0x08, 0x23);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(keys_thumbster, 0x09, 0x17);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(keys_extra, 0x0a, 0x08);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(keys_easyzone, 0x0b, 0x126);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(key_mask, 0x0c, 0x06);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(light, 0x0d, 0x10);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(macro, 0x0e, 0x7d2);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_R(info, 0x0f, 0x08);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_W(reset, 0x11, 0x03);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_W(light_control, 0x13, 0x08);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_W(talk, 0x16, 0x10);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(stored_lights, 0x17, 0x0566);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_W(custom_lights, 0x18, 0x14);
+ROCCAT_COMMON2_BIN_ATTRIBUTE_RW(light_macro, 0x19, 0x07d2);
+
+static struct bin_attribute *ryos_bin_attrs[] = {
+	&bin_attr_control,
+	&bin_attr_profile,
+	&bin_attr_keys_primary,
+	&bin_attr_keys_function,
+	&bin_attr_keys_macro,
+	&bin_attr_keys_thumbster,
+	&bin_attr_keys_extra,
+	&bin_attr_keys_easyzone,
+	&bin_attr_key_mask,
+	&bin_attr_light,
+	&bin_attr_macro,
+	&bin_attr_info,
+	&bin_attr_reset,
+	&bin_attr_light_control,
+	&bin_attr_talk,
+	&bin_attr_stored_lights,
+	&bin_attr_custom_lights,
+	&bin_attr_light_macro,
+	NULL,
+};
+
+static const struct attribute_group ryos_group = {
+	.bin_attrs = ryos_bin_attrs,
+};
+
+static const struct attribute_group *ryos_groups[] = {
+	&ryos_group,
+	NULL,
+};
+
+static int ryos_init_specials(struct hid_device *hdev)
+{
+	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+	struct usb_device *usb_dev = interface_to_usbdev(intf);
+	struct roccat_common2_device *ryos;
+	int retval;
+
+	if (intf->cur_altsetting->desc.bInterfaceProtocol
+			!= RYOS_USB_INTERFACE_PROTOCOL) {
+		hid_set_drvdata(hdev, NULL);
+		return 0;
+	}
+
+	ryos = kzalloc(sizeof(*ryos), GFP_KERNEL);
+	if (!ryos) {
+		hid_err(hdev, "can't alloc device descriptor\n");
+		return -ENOMEM;
+	}
+	hid_set_drvdata(hdev, ryos);
+
+	retval = roccat_common2_device_init_struct(usb_dev, ryos);
+	if (retval) {
+		hid_err(hdev, "couldn't init Ryos device\n");
+		goto exit_free;
+	}
+
+	retval = roccat_connect(ryos_class, hdev,
+			sizeof(struct ryos_report_special));
+	if (retval < 0) {
+		hid_err(hdev, "couldn't init char dev\n");
+	} else {
+		ryos->chrdev_minor = retval;
+		ryos->roccat_claimed = 1;
+	}
+
+	return 0;
+exit_free:
+	kfree(ryos);
+	return retval;
+}
+
+static void ryos_remove_specials(struct hid_device *hdev)
+{
+	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+	struct roccat_common2_device *ryos;
+
+	if (intf->cur_altsetting->desc.bInterfaceProtocol
+			!= RYOS_USB_INTERFACE_PROTOCOL)
+		return;
+
+	ryos = hid_get_drvdata(hdev);
+	if (ryos->roccat_claimed)
+		roccat_disconnect(ryos->chrdev_minor);
+	kfree(ryos);
+}
+
+static int ryos_probe(struct hid_device *hdev,
+		const struct hid_device_id *id)
+{
+	int retval;
+
+	retval = hid_parse(hdev);
+	if (retval) {
+		hid_err(hdev, "parse failed\n");
+		goto exit;
+	}
+
+	retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+	if (retval) {
+		hid_err(hdev, "hw start failed\n");
+		goto exit;
+	}
+
+	retval = ryos_init_specials(hdev);
+	if (retval) {
+		hid_err(hdev, "couldn't install mouse\n");
+		goto exit_stop;
+	}
+
+	return 0;
+
+exit_stop:
+	hid_hw_stop(hdev);
+exit:
+	return retval;
+}
+
+static void ryos_remove(struct hid_device *hdev)
+{
+	ryos_remove_specials(hdev);
+	hid_hw_stop(hdev);
+}
+
+static int ryos_raw_event(struct hid_device *hdev,
+		struct hid_report *report, u8 *data, int size)
+{
+	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+	struct roccat_common2_device *ryos = hid_get_drvdata(hdev);
+
+	if (intf->cur_altsetting->desc.bInterfaceProtocol
+			!= RYOS_USB_INTERFACE_PROTOCOL)
+		return 0;
+
+	if (data[0] != RYOS_REPORT_NUMBER_SPECIAL)
+		return 0;
+
+	if (ryos != NULL && ryos->roccat_claimed)
+		roccat_report_event(ryos->chrdev_minor, data);
+
+	return 0;
+}
+
+static const struct hid_device_id ryos_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_GLOW) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_PRO) },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(hid, ryos_devices);
+
+static struct hid_driver ryos_driver = {
+		.name = "ryos",
+		.id_table = ryos_devices,
+		.probe = ryos_probe,
+		.remove = ryos_remove,
+		.raw_event = ryos_raw_event
+};
+
+static int __init ryos_init(void)
+{
+	int retval;
+
+	ryos_class = class_create(THIS_MODULE, "ryos");
+	if (IS_ERR(ryos_class))
+		return PTR_ERR(ryos_class);
+	ryos_class->dev_groups = ryos_groups;
+
+	retval = hid_register_driver(&ryos_driver);
+	if (retval)
+		class_destroy(ryos_class);
+	return retval;
+}
+
+static void __exit ryos_exit(void)
+{
+	hid_unregister_driver(&ryos_driver);
+	class_destroy(ryos_class);
+}
+
+module_init(ryos_init);
+module_exit(ryos_exit);
+
+MODULE_AUTHOR("Stefan Achatz");
+MODULE_DESCRIPTION("USB Roccat Ryos MK/Glow/Pro driver");
+MODULE_LICENSE("GPL v2");
-- 
cgit 


From e1b8ad8e78301b98363feb0b8c1db199e4877cb2 Mon Sep 17 00:00:00 2001
From: Bibek Basu <bbasu@nvidia.com>
Date: Mon, 21 Oct 2013 09:59:13 +0530
Subject: HID: i2c-hid: Stop querying for init reports

According to specifications, HID over I2C devices are not bound to respond to
query for INPUT REPORTS. Thus dropping the call during init as many devices
does not respond causing error messages during boot.

Signed-off-by: Bibek Basu <bbasu@nvidia.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/i2c-hid/i2c-hid.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index c1336193b04b..4c13bf3ebe20 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -454,10 +454,6 @@ static void i2c_hid_init_reports(struct hid_device *hid)
 		return;
 	}
 
-	list_for_each_entry(report,
-		&hid->report_enum[HID_INPUT_REPORT].report_list, list)
-		i2c_hid_init_report(report, inbuf, ihid->bufsize);
-
 	list_for_each_entry(report,
 		&hid->report_enum[HID_FEATURE_REPORT].report_list, list)
 		i2c_hid_init_report(report, inbuf, ihid->bufsize);
-- 
cgit 


From d4b1bba76171cb783e32441b28462fe841073ed8 Mon Sep 17 00:00:00 2001
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: Sat, 26 Oct 2013 10:04:09 -0700
Subject: HID: hid-sensor-hub: fix report size

Most of the hid sensor field size is reported in report_size field
in the report descriptor. For rotation fusion sensor the quaternion
data is 16 byte field, the report size was set to 4 and report
count field is set to 4. So the total size is 16 bytes. But the current
driver has a bug and not taking account for report count field. This
causes user space to see only 4 bytes of data sent via IIO interface.
The number of bytes in a field needs to take account of report_count
field. Need to multiply report_size and report_count to get total
number of bytes.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-sensor-hub.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index 10e1581022cf..9e4cdca549c0 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -326,7 +326,8 @@ int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev,
 				field->logical == attr_usage_id) {
 				sensor_hub_fill_attr_info(info, i, report->id,
 					field->unit, field->unit_exponent,
-					field->report_size);
+					field->report_size *
+							field->report_count);
 				ret = 0;
 			} else {
 				for (j = 0; j < field->maxusage; ++j) {
@@ -338,7 +339,8 @@ int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev,
 							i, report->id,
 							field->unit,
 							field->unit_exponent,
-							field->report_size);
+							field->report_size *
+							field->report_count);
 						ret = 0;
 						break;
 					}
@@ -425,9 +427,10 @@ static int sensor_hub_raw_event(struct hid_device *hdev,
 		hid_dbg(hdev, "%d collection_index:%x hid:%x sz:%x\n",
 				i, report->field[i]->usage->collection_index,
 				report->field[i]->usage->hid,
-				report->field[i]->report_size/8);
-
-		sz = report->field[i]->report_size/8;
+				(report->field[i]->report_size *
+					report->field[i]->report_count)/8);
+		sz = (report->field[i]->report_size *
+					report->field[i]->report_count)/8;
 		if (pdata->pending.status && pdata->pending.attr_usage_id ==
 				report->field[i]->usage->hid) {
 			hid_dbg(hdev, "data was pending ...\n");
-- 
cgit 


From 556483e2ad4961bd2770e3b65f3a0eb2825d5791 Mon Sep 17 00:00:00 2001
From: Felix Rueegg <felix.rueegg@gmail.com>
Date: Tue, 8 Oct 2013 19:33:47 +0200
Subject: HID: remove self-assignment from hid_input_report

The ternary expression will always result in a self-assignment, which is
pointless.

Signed-off-by: Felix Rueegg <felix.rueegg@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-core.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index b8470b1a10fe..868ebaa39413 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1417,10 +1417,8 @@ int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int i
 
 	if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
 		ret = hdrv->raw_event(hid, report, data, size);
-		if (ret < 0) {
-			ret = ret < 0 ? ret : 0;
+		if (ret < 0)
 			goto unlock;
-		}
 	}
 
 	ret = hid_report_raw_event(hid, type, data, size, interrupt);
-- 
cgit 


From 6d60332610e213b8a5a8deaecfd7d561de1e98e4 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Sat, 19 Oct 2013 12:08:59 +0300
Subject: HID: logitech-dj: small cleanup in rdcat()

We could pass the "rdsec" pointer instead of the address of the "rdesc"
and it's a little simpler.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-logitech-dj.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c
index 2e5302462efb..a7947d8251a8 100644
--- a/drivers/hid/hid-logitech-dj.c
+++ b/drivers/hid/hid-logitech-dj.c
@@ -542,9 +542,9 @@ static int logi_dj_output_hidraw_report(struct hid_device *hid, u8 * buf,
 	return 0;
 }
 
-static void rdcat(char **rdesc, unsigned int *rsize, const char *data, unsigned int size)
+static void rdcat(char *rdesc, unsigned int *rsize, const char *data, unsigned int size)
 {
-	memcpy(*rdesc + *rsize, data, size);
+	memcpy(rdesc + *rsize, data, size);
 	*rsize += size;
 }
 
@@ -567,31 +567,31 @@ static int logi_dj_ll_parse(struct hid_device *hid)
 	if (djdev->reports_supported & STD_KEYBOARD) {
 		dbg_hid("%s: sending a kbd descriptor, reports_supported: %x\n",
 			__func__, djdev->reports_supported);
-		rdcat(&rdesc, &rsize, kbd_descriptor, sizeof(kbd_descriptor));
+		rdcat(rdesc, &rsize, kbd_descriptor, sizeof(kbd_descriptor));
 	}
 
 	if (djdev->reports_supported & STD_MOUSE) {
 		dbg_hid("%s: sending a mouse descriptor, reports_supported: "
 			"%x\n", __func__, djdev->reports_supported);
-		rdcat(&rdesc, &rsize, mse_descriptor, sizeof(mse_descriptor));
+		rdcat(rdesc, &rsize, mse_descriptor, sizeof(mse_descriptor));
 	}
 
 	if (djdev->reports_supported & MULTIMEDIA) {
 		dbg_hid("%s: sending a multimedia report descriptor: %x\n",
 			__func__, djdev->reports_supported);
-		rdcat(&rdesc, &rsize, consumer_descriptor, sizeof(consumer_descriptor));
+		rdcat(rdesc, &rsize, consumer_descriptor, sizeof(consumer_descriptor));
 	}
 
 	if (djdev->reports_supported & POWER_KEYS) {
 		dbg_hid("%s: sending a power keys report descriptor: %x\n",
 			__func__, djdev->reports_supported);
-		rdcat(&rdesc, &rsize, syscontrol_descriptor, sizeof(syscontrol_descriptor));
+		rdcat(rdesc, &rsize, syscontrol_descriptor, sizeof(syscontrol_descriptor));
 	}
 
 	if (djdev->reports_supported & MEDIA_CENTER) {
 		dbg_hid("%s: sending a media center report descriptor: %x\n",
 			__func__, djdev->reports_supported);
-		rdcat(&rdesc, &rsize, media_descriptor, sizeof(media_descriptor));
+		rdcat(rdesc, &rsize, media_descriptor, sizeof(media_descriptor));
 	}
 
 	if (djdev->reports_supported & KBD_LEDS) {
-- 
cgit 


From e02aea9132cf40e8ef111588b06a93956fe77545 Mon Sep 17 00:00:00 2001
From: Jan Matějka <yac@blesmrt.net>
Date: Sat, 26 Oct 2013 00:03:49 +0200
Subject: HID: multitouch: add manufacturer to Kconfig help text
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

tested with vendor=0x04f3 product=0x002f

Signed-off-by: Jan Matějka <yac@blesmrt.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index eb8c6278cfce..61ebd965be8c 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -436,6 +436,7 @@ config HID_MULTITOUCH
 	  - Chunghwa panels
 	  - CVTouch panels
 	  - Cypress TrueTouch panels
+	  - Elan Microelectronics touch panels
 	  - Elo TouchSystems IntelliTouch Plus panels
 	  - GeneralTouch 'Sensing Win7-TwoFinger' panels
 	  - GoodTouch panels
-- 
cgit 


From e1a90ebd8b2349eb00ec22f0b8bf6ab8bbd06cc8 Mon Sep 17 00:00:00 2001
From: Anna Schumaker <bjschuma@netapp.com>
Date: Wed, 30 Oct 2013 10:00:20 -0400
Subject: NFSD: Combine decode operations for v4 and v4.1

We were using a different array of function pointers to represent each
minor version.  This makes adding a new minor version tedious, since it
needs a step to copy, paste and modify a new version of the same
functions.

This patch combines the v4 and v4.1 arrays into a single instance and
will check minor version support inside each decoder function.

Signed-off-by: Anna Schumaker <bjschuma@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/nfs4xdr.c | 98 +++++++++++++++++++++++--------------------------------
 1 file changed, 40 insertions(+), 58 deletions(-)

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index d9454fe5653f..99bebea20668 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -945,13 +945,16 @@ static __be32
 nfsd4_decode_open_confirm(struct nfsd4_compoundargs *argp, struct nfsd4_open_confirm *open_conf)
 {
 	DECODE_HEAD;
-		    
+
+	if (argp->minorversion >= 1)
+		return nfserr_notsupp;
+
 	status = nfsd4_decode_stateid(argp, &open_conf->oc_req_stateid);
 	if (status)
 		return status;
 	READ_BUF(4);
 	READ32(open_conf->oc_seqid);
-						        
+
 	DECODE_TAIL;
 }
 
@@ -990,6 +993,14 @@ nfsd4_decode_putfh(struct nfsd4_compoundargs *argp, struct nfsd4_putfh *putfh)
 	DECODE_TAIL;
 }
 
+static __be32
+nfsd4_decode_putpubfh(struct nfsd4_compoundargs *argp, void *p)
+{
+	if (argp->minorversion == 0)
+		return nfs_ok;
+	return nfserr_notsupp;
+}
+
 static __be32
 nfsd4_decode_read(struct nfsd4_compoundargs *argp, struct nfsd4_read *read)
 {
@@ -1061,6 +1072,9 @@ nfsd4_decode_renew(struct nfsd4_compoundargs *argp, clientid_t *clientid)
 {
 	DECODE_HEAD;
 
+	if (argp->minorversion >= 1)
+		return nfserr_notsupp;
+
 	READ_BUF(sizeof(clientid_t));
 	COPYMEM(clientid, sizeof(clientid_t));
 
@@ -1111,6 +1125,9 @@ nfsd4_decode_setclientid(struct nfsd4_compoundargs *argp, struct nfsd4_setclient
 {
 	DECODE_HEAD;
 
+	if (argp->minorversion >= 1)
+		return nfserr_notsupp;
+
 	READ_BUF(NFS4_VERIFIER_SIZE);
 	COPYMEM(setclientid->se_verf.data, NFS4_VERIFIER_SIZE);
 
@@ -1137,6 +1154,9 @@ nfsd4_decode_setclientid_confirm(struct nfsd4_compoundargs *argp, struct nfsd4_s
 {
 	DECODE_HEAD;
 
+	if (argp->minorversion >= 1)
+		return nfserr_notsupp;
+
 	READ_BUF(8 + NFS4_VERIFIER_SIZE);
 	COPYMEM(&scd_c->sc_clientid, 8);
 	COPYMEM(&scd_c->sc_confirm, NFS4_VERIFIER_SIZE);
@@ -1220,6 +1240,9 @@ nfsd4_decode_release_lockowner(struct nfsd4_compoundargs *argp, struct nfsd4_rel
 {
 	DECODE_HEAD;
 
+	if (argp->minorversion >= 1)
+		return nfserr_notsupp;
+
 	READ_BUF(12);
 	COPYMEM(&rlockowner->rl_clientid, sizeof(clientid_t));
 	READ32(rlockowner->rl_owner.len);
@@ -1519,7 +1542,7 @@ static nfsd4_dec nfsd4_dec_ops[] = {
 	[OP_OPEN_CONFIRM]	= (nfsd4_dec)nfsd4_decode_open_confirm,
 	[OP_OPEN_DOWNGRADE]	= (nfsd4_dec)nfsd4_decode_open_downgrade,
 	[OP_PUTFH]		= (nfsd4_dec)nfsd4_decode_putfh,
-	[OP_PUTPUBFH]		= (nfsd4_dec)nfsd4_decode_noop,
+	[OP_PUTPUBFH]		= (nfsd4_dec)nfsd4_decode_putpubfh,
 	[OP_PUTROOTFH]		= (nfsd4_dec)nfsd4_decode_noop,
 	[OP_READ]		= (nfsd4_dec)nfsd4_decode_read,
 	[OP_READDIR]		= (nfsd4_dec)nfsd4_decode_readdir,
@@ -1536,46 +1559,6 @@ static nfsd4_dec nfsd4_dec_ops[] = {
 	[OP_VERIFY]		= (nfsd4_dec)nfsd4_decode_verify,
 	[OP_WRITE]		= (nfsd4_dec)nfsd4_decode_write,
 	[OP_RELEASE_LOCKOWNER]	= (nfsd4_dec)nfsd4_decode_release_lockowner,
-};
-
-static nfsd4_dec nfsd41_dec_ops[] = {
-	[OP_ACCESS]		= (nfsd4_dec)nfsd4_decode_access,
-	[OP_CLOSE]		= (nfsd4_dec)nfsd4_decode_close,
-	[OP_COMMIT]		= (nfsd4_dec)nfsd4_decode_commit,
-	[OP_CREATE]		= (nfsd4_dec)nfsd4_decode_create,
-	[OP_DELEGPURGE]		= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_DELEGRETURN]	= (nfsd4_dec)nfsd4_decode_delegreturn,
-	[OP_GETATTR]		= (nfsd4_dec)nfsd4_decode_getattr,
-	[OP_GETFH]		= (nfsd4_dec)nfsd4_decode_noop,
-	[OP_LINK]		= (nfsd4_dec)nfsd4_decode_link,
-	[OP_LOCK]		= (nfsd4_dec)nfsd4_decode_lock,
-	[OP_LOCKT]		= (nfsd4_dec)nfsd4_decode_lockt,
-	[OP_LOCKU]		= (nfsd4_dec)nfsd4_decode_locku,
-	[OP_LOOKUP]		= (nfsd4_dec)nfsd4_decode_lookup,
-	[OP_LOOKUPP]		= (nfsd4_dec)nfsd4_decode_noop,
-	[OP_NVERIFY]		= (nfsd4_dec)nfsd4_decode_verify,
-	[OP_OPEN]		= (nfsd4_dec)nfsd4_decode_open,
-	[OP_OPENATTR]		= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_OPEN_CONFIRM]	= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_OPEN_DOWNGRADE]	= (nfsd4_dec)nfsd4_decode_open_downgrade,
-	[OP_PUTFH]		= (nfsd4_dec)nfsd4_decode_putfh,
-	[OP_PUTPUBFH]		= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_PUTROOTFH]		= (nfsd4_dec)nfsd4_decode_noop,
-	[OP_READ]		= (nfsd4_dec)nfsd4_decode_read,
-	[OP_READDIR]		= (nfsd4_dec)nfsd4_decode_readdir,
-	[OP_READLINK]		= (nfsd4_dec)nfsd4_decode_noop,
-	[OP_REMOVE]		= (nfsd4_dec)nfsd4_decode_remove,
-	[OP_RENAME]		= (nfsd4_dec)nfsd4_decode_rename,
-	[OP_RENEW]		= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_RESTOREFH]		= (nfsd4_dec)nfsd4_decode_noop,
-	[OP_SAVEFH]		= (nfsd4_dec)nfsd4_decode_noop,
-	[OP_SECINFO]		= (nfsd4_dec)nfsd4_decode_secinfo,
-	[OP_SETATTR]		= (nfsd4_dec)nfsd4_decode_setattr,
-	[OP_SETCLIENTID]	= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_SETCLIENTID_CONFIRM]= (nfsd4_dec)nfsd4_decode_notsupp,
-	[OP_VERIFY]		= (nfsd4_dec)nfsd4_decode_verify,
-	[OP_WRITE]		= (nfsd4_dec)nfsd4_decode_write,
-	[OP_RELEASE_LOCKOWNER]	= (nfsd4_dec)nfsd4_decode_notsupp,
 
 	/* new operations for NFSv4.1 */
 	[OP_BACKCHANNEL_CTL]	= (nfsd4_dec)nfsd4_decode_backchannel_ctl,
@@ -1599,23 +1582,23 @@ static nfsd4_dec nfsd41_dec_ops[] = {
 	[OP_RECLAIM_COMPLETE]	= (nfsd4_dec)nfsd4_decode_reclaim_complete,
 };
 
-struct nfsd4_minorversion_ops {
-	nfsd4_dec *decoders;
-	int nops;
-};
-
-static struct nfsd4_minorversion_ops nfsd4_minorversion[] = {
-	[0] = { nfsd4_dec_ops, ARRAY_SIZE(nfsd4_dec_ops) },
-	[1] = { nfsd41_dec_ops, ARRAY_SIZE(nfsd41_dec_ops) },
-	[2] = { nfsd41_dec_ops, ARRAY_SIZE(nfsd41_dec_ops) },
-};
+static inline bool
+nfsd4_opnum_in_range(struct nfsd4_compoundargs *argp, struct nfsd4_op *op)
+{
+	if (op->opnum < FIRST_NFS4_OP || op->opnum > LAST_NFS4_OP)
+		return false;
+	else if (argp->minorversion == 0 && op->opnum > OP_RELEASE_LOCKOWNER)
+		return false;
+	else if (argp->minorversion == 1 && op->opnum > OP_RECLAIM_COMPLETE)
+		return false;
+	return true;
+}
 
 static __be32
 nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
 {
 	DECODE_HEAD;
 	struct nfsd4_op *op;
-	struct nfsd4_minorversion_ops *ops;
 	bool cachethis = false;
 	int i;
 
@@ -1640,10 +1623,9 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
 		}
 	}
 
-	if (argp->minorversion >= ARRAY_SIZE(nfsd4_minorversion))
+	if (argp->minorversion > NFSD_SUPPORTED_MINOR_VERSION)
 		argp->opcnt = 0;
 
-	ops = &nfsd4_minorversion[argp->minorversion];
 	for (i = 0; i < argp->opcnt; i++) {
 		op = &argp->ops[i];
 		op->replay = NULL;
@@ -1651,8 +1633,8 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
 		READ_BUF(4);
 		READ32(op->opnum);
 
-		if (op->opnum >= FIRST_NFS4_OP && op->opnum <= LAST_NFS4_OP)
-			op->status = ops->decoders[op->opnum](argp, &op->u);
+		if (nfsd4_opnum_in_range(argp, op))
+			op->status = nfsd4_dec_ops[op->opnum](argp, &op->u);
 		else {
 			op->opnum = OP_ILLEGAL;
 			op->status = nfserr_op_illegal;
-- 
cgit 


From e50a26dc785f12a6df1f1ac16d62faf0342b72af Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Wed, 30 Oct 2013 10:33:09 -0400
Subject: nfsd4: nfsd_shutdown_net needs state lock

A comment claims the caller should take it, but that's not being done.
Note we don't want it around the cancel_delayed_work_sync since that may
wait on work which holds the client lock.

Reported-by: Benny Halevy <bhalevy@primarydata.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/nfs4state.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 21eb6788cb33..e03e8efff53f 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -5124,7 +5124,6 @@ out_recovery:
 	return ret;
 }
 
-/* should be called with the state lock held */
 void
 nfs4_state_shutdown_net(struct net *net)
 {
@@ -5135,6 +5134,7 @@ nfs4_state_shutdown_net(struct net *net)
 	cancel_delayed_work_sync(&nn->laundromat_work);
 	locks_end_grace(&nn->nfsd4_manager);
 
+	nfs4_lock_state();
 	INIT_LIST_HEAD(&reaplist);
 	spin_lock(&recall_lock);
 	list_for_each_safe(pos, next, &nn->del_recall_lru) {
@@ -5149,6 +5149,7 @@ nfs4_state_shutdown_net(struct net *net)
 
 	nfsd4_client_tracking_exit(net);
 	nfs4_state_destroy_net(net);
+	nfs4_unlock_state();
 }
 
 void
-- 
cgit 


From 5ba052fe33807893a26076d2ac95cf31d5e0b578 Mon Sep 17 00:00:00 2001
From: Azat Khuzhin <a3at.mail@gmail.com>
Date: Wed, 30 Oct 2013 10:53:10 -0400
Subject: ext4: drop set but otherwise unused variable from
 ext4_add_dirent_to_inline()

Signed-off-by: Azat Khuzhin <a3at.mail@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 fs/ext4/inline.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/ext4/inline.c b/fs/ext4/inline.c
index c3efb65d2ec6..bae987549dc3 100644
--- a/fs/ext4/inline.c
+++ b/fs/ext4/inline.c
@@ -994,11 +994,9 @@ static int ext4_add_dirent_to_inline(handle_t *handle,
 	struct inode	*dir = dentry->d_parent->d_inode;
 	const char	*name = dentry->d_name.name;
 	int		namelen = dentry->d_name.len;
-	unsigned short	reclen;
 	int		err;
 	struct ext4_dir_entry_2 *de;
 
-	reclen = EXT4_DIR_REC_LEN(namelen);
 	err = ext4_find_dest_de(dir, inode, iloc->bh,
 				inline_start, inline_size,
 				name, namelen, &de);
-- 
cgit 


From 8f9ff189205a6817aee5a1f996f876541f86e07c Mon Sep 17 00:00:00 2001
From: Lukas Czerner <lczerner@redhat.com>
Date: Wed, 30 Oct 2013 11:10:52 -0400
Subject: ext4: fix FITRIM in no journal mode
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

When using FITRIM ioctl on a file system without journal it will
only trim the block group once, no matter how many times you invoke
FITRIM ioctl and how many block you release from the block group.

It is because we only clear EXT4_GROUP_INFO_WAS_TRIMMED_BIT in journal
callback. Fix this by clearing the bit in no journal mode as well.

Signed-off-by: Lukas Czerner <lczerner@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reported-by: Jorge Fábregas <jorge.fabregas@gmail.com>
---
 fs/ext4/mballoc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index a41e3ba8cfaa..4d113efa024c 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -4794,8 +4794,8 @@ do_more:
 					 " group:%d block:%d count:%lu failed"
 					 " with %d", block_group, bit, count,
 					 err);
-		}
-
+		} else
+			EXT4_MB_GRP_CLEAR_TRIMMED(e4b.bd_info);
 
 		ext4_lock_group(sb, block_group);
 		mb_clear_bits(bitmap_bh->b_data, bit, count_clusters);
-- 
cgit 


From 09c3e54635c85b3da44d3bc156619c1f1af3bb43 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 30 Oct 2013 13:32:15 +0800
Subject: SUNRPC: remove duplicated include from clnt.c

Remove duplicated include.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 net/sunrpc/clnt.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index 759b78b056a7..dab09dac8fc7 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -31,7 +31,6 @@
 #include <linux/in.h>
 #include <linux/in6.h>
 #include <linux/un.h>
-#include <linux/rcupdate.h>
 
 #include <linux/sunrpc/clnt.h>
 #include <linux/sunrpc/addr.h>
-- 
cgit 


From 4edd65e63fe4a998164a8d7d8c8c86f4300825d7 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 16 Oct 2013 15:26:33 +0530
Subject: i2c: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-gpio.c       | 1 +
 drivers/i2c/busses/i2c-pnx.c        | 1 +
 drivers/i2c/busses/i2c-s3c2410.c    | 1 +
 drivers/i2c/busses/i2c-xiic.c       | 1 +
 drivers/i2c/muxes/i2c-mux-pinctrl.c | 1 +
 5 files changed, 5 insertions(+)

diff --git a/drivers/i2c/busses/i2c-gpio.c b/drivers/i2c/busses/i2c-gpio.c
index bfa02c6c2dda..d9f7e186a4c7 100644
--- a/drivers/i2c/busses/i2c-gpio.c
+++ b/drivers/i2c/busses/i2c-gpio.c
@@ -15,6 +15,7 @@
 #include <linux/slab.h>
 #include <linux/platform_device.h>
 #include <linux/gpio.h>
+#include <linux/of.h>
 #include <linux/of_gpio.h>
 
 struct i2c_gpio_private_data {
diff --git a/drivers/i2c/busses/i2c-pnx.c b/drivers/i2c/busses/i2c-pnx.c
index 1a9ea25f2314..c9a352f0a9a5 100644
--- a/drivers/i2c/busses/i2c-pnx.c
+++ b/drivers/i2c/busses/i2c-pnx.c
@@ -23,6 +23,7 @@
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <linux/slab.h>
+#include <linux/of.h>
 
 #define I2C_PNX_TIMEOUT_DEFAULT		10 /* msec */
 #define I2C_PNX_SPEED_KHZ_DEFAULT	100
diff --git a/drivers/i2c/busses/i2c-s3c2410.c b/drivers/i2c/busses/i2c-s3c2410.c
index 3747b9bf67d6..bf8fb94ebc5d 100644
--- a/drivers/i2c/busses/i2c-s3c2410.c
+++ b/drivers/i2c/busses/i2c-s3c2410.c
@@ -36,6 +36,7 @@
 #include <linux/cpufreq.h>
 #include <linux/slab.h>
 #include <linux/io.h>
+#include <linux/of.h>
 #include <linux/of_gpio.h>
 #include <linux/pinctrl/consumer.h>
 
diff --git a/drivers/i2c/busses/i2c-xiic.c b/drivers/i2c/busses/i2c-xiic.c
index 6e7b09c1804e..fc2716afdfd9 100644
--- a/drivers/i2c/busses/i2c-xiic.c
+++ b/drivers/i2c/busses/i2c-xiic.c
@@ -40,6 +40,7 @@
 #include <linux/i2c-xiic.h>
 #include <linux/io.h>
 #include <linux/slab.h>
+#include <linux/of.h>
 
 #define DRIVER_NAME "xiic-i2c"
 
diff --git a/drivers/i2c/muxes/i2c-mux-pinctrl.c b/drivers/i2c/muxes/i2c-mux-pinctrl.c
index 69a91732ae65..b3d0574ead4e 100644
--- a/drivers/i2c/muxes/i2c-mux-pinctrl.c
+++ b/drivers/i2c/muxes/i2c-mux-pinctrl.c
@@ -24,6 +24,7 @@
 #include <linux/i2c-mux-pinctrl.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
+#include <linux/of.h>
 
 struct i2c_mux_pinctrl {
 	struct device *dev;
-- 
cgit 


From 8bcadbe17207aee0df4a1f5cb41371d71bf3e4b0 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 21 Oct 2013 14:36:41 +0530
Subject: PCI: imx6: Remove redundant of_match_ptr

imx6_pcie_of_match is always compiled in because PCI_IMX6 depends on
SOC_IMX6Q, which only supports OF build.  Hence of_match_ptr is not
required.

[bhelgaas: add changelog details from Shawn]
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Sean Cross <xobs@kosagi.com>
---
 drivers/pci/host/pci-imx6.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/host/pci-imx6.c b/drivers/pci/host/pci-imx6.c
index baafb397a698..0a435b8f54c2 100644
--- a/drivers/pci/host/pci-imx6.c
+++ b/drivers/pci/host/pci-imx6.c
@@ -551,7 +551,7 @@ static struct platform_driver imx6_pcie_driver = {
 	.driver = {
 		.name	= "imx6q-pcie",
 		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(imx6_pcie_of_match),
+		.of_match_table = imx6_pcie_of_match,
 	},
 };
 
-- 
cgit 


From 014e4c27c68a3ec40b19fef6ae0431e639632531 Mon Sep 17 00:00:00 2001
From: Valentina Manea <valentina.manea.m@gmail.com>
Date: Tue, 29 Oct 2013 20:58:48 +0200
Subject: staging: rtl8192e: use true and false for bool variables

This patch fixes coccinelle errors for bool variables
initialized with 1 or 0 instead of true and false.

Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c |  2 +-
 drivers/staging/rtl8192e/rtl8192e/rtl_core.c   | 10 +++++-----
 drivers/staging/rtl8192e/rtl8192e/rtl_dm.c     |  6 +++---
 drivers/staging/rtl8192e/rtllib_rx.c           |  4 ++--
 drivers/staging/rtl8192e/rtllib_softmac.c      |  6 +++---
 5 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
index a816a57030fe..a28584128c91 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
@@ -2213,7 +2213,7 @@ rtl8192_InitializeVariables(struct net_device  *dev)
 	priv->MidHighPwrTHR_L2 = 0x40;
 	priv->PwrDomainProtect = false;
 
-	priv->bfirst_after_down = 0;
+	priv->bfirst_after_down = false;
 }
 
 void rtl8192_EnableInterrupt(struct net_device *dev)
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
index bd8c9a2970fc..d93caca9657d 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
@@ -998,7 +998,7 @@ static int rtl8192_sta_down(struct net_device *dev, bool shutdownrf)
 	priv->bDriverIsGoingToUnload = true;
 	priv->up = 0;
 	priv->rtllib->ieee_up = 0;
-	priv->bfirst_after_down = 1;
+	priv->bfirst_after_down = true;
 	RT_TRACE(COMP_DOWN, "==========>%s()\n", __func__);
 	if (!netif_queue_stopped(dev))
 		netif_stop_queue(dev);
@@ -1117,8 +1117,8 @@ static void rtl8192_init_priv_variable(struct net_device *dev)
 	priv->rtllib->hwscan_sem_up = 1;
 	priv->rtllib->status = 0;
 	priv->H2CTxCmdSeq = 0;
-	priv->bDisableFrameBursting = 0;
-	priv->bDMInitialGainEnable = 1;
+	priv->bDisableFrameBursting = false;
+	priv->bDMInitialGainEnable = true;
 	priv->polling_timer_on = 0;
 	priv->up_first_time = 1;
 	priv->blinked_ingpio = false;
@@ -1160,7 +1160,7 @@ static void rtl8192_init_priv_variable(struct net_device *dev)
 	priv->CckPwEnl = 6;
 	priv->ScanDelay = 50;
 	priv->ResetProgress = RESET_TYPE_NORESET;
-	priv->bForcedSilentReset = 0;
+	priv->bForcedSilentReset = false;
 	priv->bDisableNormalResetCheck = false;
 	priv->force_reset = false;
 	memset(priv->rtllib->swcamtable, 0, sizeof(struct sw_cam_table) * 32);
@@ -1169,7 +1169,7 @@ static void rtl8192_init_priv_variable(struct net_device *dev)
 	priv->RxCounter = 0;
 	priv->rtllib->wx_set_enc = 0;
 	priv->bHwRadioOff = false;
-	priv->RegRfOff = 0;
+	priv->RegRfOff = false;
 	priv->isRFOff = false;
 	priv->bInPowerSaveMode = false;
 	priv->rtllib->RfOffReason = 0;
diff --git a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
index bdab150d927e..2297fc20fd4e 100644
--- a/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
@@ -2265,7 +2265,7 @@ void dm_CheckRfCtrlGPIO(void *data)
 		return;
 
 	if (priv->bfirst_after_down) {
-		priv->bfirst_after_down = 1;
+		priv->bfirst_after_down = true;
 		return;
 	}
 
@@ -2312,9 +2312,9 @@ void	dm_rf_pathcheck_workitemcallback(void *data)
 
 	for (i = 0; i < RF90_PATH_MAX; i++) {
 		if (rfpath & (0x01<<i))
-			priv->brfpath_rxenable[i] = 1;
+			priv->brfpath_rxenable[i] = true;
 		else
-			priv->brfpath_rxenable[i] = 0;
+			priv->brfpath_rxenable[i] = false;
 	}
 	if (!DM_RxPathSelTable.Enable)
 		return;
diff --git a/drivers/staging/rtl8192e/rtllib_rx.c b/drivers/staging/rtl8192e/rtllib_rx.c
index 6862172af172..1a011b9b9da6 100644
--- a/drivers/staging/rtl8192e/rtllib_rx.c
+++ b/drivers/staging/rtl8192e/rtllib_rx.c
@@ -873,11 +873,11 @@ static size_t rtllib_rx_get_hdrlen(struct rtllib_device *ieee,
 		if (net_ratelimit())
 			printk(KERN_INFO "%s: find HTCControl!\n", __func__);
 		hdrlen += 4;
-		rx_stats->bContainHTC = 1;
+		rx_stats->bContainHTC = true;
 	}
 
 	 if (RTLLIB_QOS_HAS_SEQ(fc))
-		rx_stats->bIsQosData = 1;
+		rx_stats->bIsQosData = true;
 
 	return hdrlen;
 }
diff --git a/drivers/staging/rtl8192e/rtllib_softmac.c b/drivers/staging/rtl8192e/rtllib_softmac.c
index 671fb5ac5744..933bd6deaca1 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac.c
@@ -705,7 +705,7 @@ static void rtllib_softmac_stop_scan(struct rtllib_device *ieee)
 	ieee->scan_watch_dog = 0;
 	if (ieee->scanning_continue == 1) {
 		ieee->scanning_continue = 0;
-		ieee->actscanning = 0;
+		ieee->actscanning = false;
 
 		cancel_delayed_work(&ieee->softmac_scan_wq);
 	}
@@ -1574,7 +1574,7 @@ static void rtllib_associate_complete_wq(void *data)
 
 	if (ieee->is_silent_reset) {
 		printk(KERN_INFO "silent reset associate\n");
-		ieee->is_silent_reset = 0;
+		ieee->is_silent_reset = false;
 	}
 
 	if (ieee->data_hard_resume)
@@ -3097,7 +3097,7 @@ void rtllib_softmac_init(struct rtllib_device *ieee)
 	ieee->sta_edca_param[2] = 0x005E4342;
 	ieee->sta_edca_param[3] = 0x002F3262;
 	ieee->aggregation = true;
-	ieee->enable_rx_imm_BA = 1;
+	ieee->enable_rx_imm_BA = true;
 	ieee->tx_pending.txb = NULL;
 
 	_setup_timer(&ieee->associate_timer,
-- 
cgit 


From cf975772ad15de8cd0c543417d8536e8200514e5 Mon Sep 17 00:00:00 2001
From: Valentina Manea <valentina.manea.m@gmail.com>
Date: Tue, 29 Oct 2013 21:06:52 +0200
Subject: staging: rtl8192e: remove unneeded semicolons

This fixes coccinelle errors regarding unneeded
semicolons.

Signed-off-by: Valentina Manea <valentina.manea.m@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
index a28584128c91..2cace9a4525a 100644
--- a/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
@@ -1184,7 +1184,7 @@ void  rtl8192_tx_fill_desc(struct net_device *dev, struct tx_desc *pdesc,
 						cb_desc);
 
 	if (pci_dma_mapping_error(priv->pdev, mapping))
-		RT_TRACE(COMP_ERR, "DMA Mapping error\n");;
+		RT_TRACE(COMP_ERR, "DMA Mapping error\n");
 	if (cb_desc->bAMPDUEnable) {
 		pTxFwInfo->AllowAggregation = 1;
 		pTxFwInfo->RxMF = cb_desc->ampdu_factor;
@@ -1283,7 +1283,7 @@ void  rtl8192_tx_fill_cmd_desc(struct net_device *dev,
 			 PCI_DMA_TODEVICE);
 
 	if (pci_dma_mapping_error(priv->pdev, mapping))
-		RT_TRACE(COMP_ERR, "DMA Mapping error\n");;
+		RT_TRACE(COMP_ERR, "DMA Mapping error\n");
 	memset(entry, 0, 12);
 	entry->LINIP = cb_desc->bLastIniPkt;
 	entry->FirstSeg = 1;
-- 
cgit 


From 4759e82481e155745af3f639158b1b53925cc3db Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Tue, 29 Oct 2013 22:50:54 +0200
Subject: Staging: xgifb: fix braces {} are not necessary for any arm of this
 statement

Fix checkpatch.pl issues with braces {} are not necessary
for any arm of this statement in vb_setmode.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/xgifb/vb_setmode.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/xgifb/vb_setmode.c b/drivers/staging/xgifb/vb_setmode.c
index eed58f9a0ad5..400c726753fa 100644
--- a/drivers/staging/xgifb/vb_setmode.c
+++ b/drivers/staging/xgifb/vb_setmode.c
@@ -845,11 +845,10 @@ static unsigned short XGI_GetVCLK2Ptr(unsigned short ModeIdIndex,
 			VCLKIndex = TVCLKBASE_315_25 + HiTVVCLK;
 
 		if (pVBInfo->SetFlag & TVSimuMode) {
-			if (modeflag & Charx8Dot) {
+			if (modeflag & Charx8Dot)
 				VCLKIndex = TVCLKBASE_315_25 + HiTVSimuVCLK;
-			} else {
+			else
 				VCLKIndex = TVCLKBASE_315_25 + HiTVTextVCLK;
-			}
 		}
 
 		/* 301lv */
-- 
cgit 


From 723a2311fa4a3cf64ee7b435ba64f797ee2a568a Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Wed, 30 Oct 2013 04:16:55 +0530
Subject: Staging: dwc2: Fix variable dereferenced before check

This patch fixes the following smatch warning in hcd_intr.c-
drivers/staging/dwc2/hcd_intr.c:1946 dwc2_hc_n_intr() warn: variable dereferenced before check 'chan' (see line 1936)

Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/dwc2/hcd_intr.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/staging/dwc2/hcd_intr.c b/drivers/staging/dwc2/hcd_intr.c
index cad433a75aba..dda18540f5a7 100644
--- a/drivers/staging/dwc2/hcd_intr.c
+++ b/drivers/staging/dwc2/hcd_intr.c
@@ -1932,23 +1932,22 @@ static void dwc2_hc_n_intr(struct dwc2_hsotg *hsotg, int chnum)
 
 	chan = hsotg->hc_ptr_array[chnum];
 
-	if (dbg_hc(chan))
-		dev_vdbg(hsotg->dev, "--Host Channel Interrupt--, Channel %d\n",
-			 chnum);
-
 	hcint = readl(hsotg->regs + HCINT(chnum));
 	hcintmsk = readl(hsotg->regs + HCINTMSK(chnum));
-	if (dbg_hc(chan))
-		dev_vdbg(hsotg->dev,
-			 "  hcint 0x%08x, hcintmsk 0x%08x, hcint&hcintmsk 0x%08x\n",
-			 hcint, hcintmsk, hcint & hcintmsk);
-
 	if (!chan) {
 		dev_err(hsotg->dev, "## hc_ptr_array for channel is NULL ##\n");
 		writel(hcint, hsotg->regs + HCINT(chnum));
 		return;
 	}
 
+	if (dbg_hc(chan)) {
+		dev_vdbg(hsotg->dev, "--Host Channel Interrupt--, Channel %d\n",
+			 chnum);
+		dev_vdbg(hsotg->dev,
+			 "  hcint 0x%08x, hcintmsk 0x%08x, hcint&hcintmsk 0x%08x\n",
+			 hcint, hcintmsk, hcint & hcintmsk);
+	}
+
 	writel(hcint, hsotg->regs + HCINT(chnum));
 	chan->hcint = hcint;
 	hcint &= hcintmsk;
-- 
cgit 


From 8787fcd209b6a2ded537a617d80be6f1d5cf1ef1 Mon Sep 17 00:00:00 2001
From: Himangi Saraogi <himangi774@gmail.com>
Date: Wed, 30 Oct 2013 06:30:49 +0530
Subject: drivers/staging/nvec/Kconfig: remove trailing whitespace

This patch fixes checkpatch.pl error trailing whitespace.

Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Reviewed-by: Lisa Nguyen <lisa@xenapiadmin.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/nvec/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/nvec/Kconfig b/drivers/staging/nvec/Kconfig
index 7e61adacd15d..9475e20c3d64 100644
--- a/drivers/staging/nvec/Kconfig
+++ b/drivers/staging/nvec/Kconfig
@@ -10,7 +10,7 @@ config KEYBOARD_NVEC
 	tristate "Keyboard on nVidia compliant EC"
 	depends on MFD_NVEC && INPUT
 	help
-	  Say Y here to enable support for a keyboard connected to 
+	  Say Y here to enable support for a keyboard connected to
 	  a nVidia compliant embedded controller.
 
 config SERIO_NVEC_PS2
-- 
cgit 


From aace95b84137488f6240a82eca00549ac128b51d Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Tue, 29 Oct 2013 23:05:20 +0200
Subject: Staging: rtl8187se: fix please, no space before tabs in r8185b_init.c

Fix checkpatch.pl issues with please, no space before
tabs in r8185b_init.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/r8185b_init.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/rtl8187se/r8185b_init.c b/drivers/staging/rtl8187se/r8185b_init.c
index 3726172b6fea..a827b30ac6f4 100644
--- a/drivers/staging/rtl8187se/r8185b_init.c
+++ b/drivers/staging/rtl8187se/r8185b_init.c
@@ -487,13 +487,13 @@ static void ZEBRA_Config_85BASIC_HardCode(struct net_device *dev)
 	/* For crystal calibration, added by Roger, 2007.12.11. */
 	if (priv->bXtalCalibration) { /* reg 30.	*/
 	 /*
- 	  *  enable crystal calibration.
-	  *		RF Reg[30], (1)Xin:[12:9], Xout:[8:5],  addr[4:0].
-	  *		(2)PA Pwr delay timer[15:14], default: 2.4us,
-	  *		set BIT15=0
-	  *		(3)RF signal on/off when calibration[13], default: on,
-	  *		set BIT13=0.
-	  *		So we should minus 4 BITs offset. 
+	  *	enable crystal calibration.
+	  *	RF Reg[30], (1)Xin:[12:9], Xout:[8:5],  addr[4:0].
+	  *	(2)PA Pwr delay timer[15:14], default: 2.4us,
+	  *	set BIT15=0
+	  *	(3)RF signal on/off when calibration[13], default: on,
+	  *	set BIT13=0.
+	  *	So we should minus 4 BITs offset. 
 	  */
 		RF_WriteReg(dev, 0x0f, (priv->XtalCal_Xin<<5) |
 			    (priv->XtalCal_Xout<<1) | BIT11 | BIT9); mdelay(1);
@@ -953,10 +953,10 @@ static void ActSetWirelessMode8185(struct net_device *dev, u8 btWirelessMode)
 	}
 
 	/* 
- 	 * 2. Swtich band: RF or BB specific actions,
+	 * 2. Swtich band: RF or BB specific actions,
 	 * for example, refresh tables in omc8255, or change initial gain if
-	 *  necessary. Nothing to do for Zebra to switch band. Update current
-	 *  wireless mode if we switch to specified band successfully.
+	 * necessary. Nothing to do for Zebra to switch band. Update current
+	 * wireless mode if we switch to specified band successfully.
 	 */
 
 	ieee->mode = (WIRELESS_MODE)btWirelessMode;
-- 
cgit 


From 52a71d5f1bc7151758999728c11207b5046a536a Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Tue, 29 Oct 2013 23:05:21 +0200
Subject: Staging: rtl8187se: fix trailing whitespace in r8185b_init.c

Fix checkpatch.pl issues with trailing whitespace
in r8185b_init.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/r8185b_init.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/rtl8187se/r8185b_init.c b/drivers/staging/rtl8187se/r8185b_init.c
index a827b30ac6f4..680f85913733 100644
--- a/drivers/staging/rtl8187se/r8185b_init.c
+++ b/drivers/staging/rtl8187se/r8185b_init.c
@@ -493,7 +493,7 @@ static void ZEBRA_Config_85BASIC_HardCode(struct net_device *dev)
 	  *	set BIT15=0
 	  *	(3)RF signal on/off when calibration[13], default: on,
 	  *	set BIT13=0.
-	  *	So we should minus 4 BITs offset. 
+	  *	So we should minus 4 BITs offset.
 	  */
 		RF_WriteReg(dev, 0x0f, (priv->XtalCal_Xin<<5) |
 			    (priv->XtalCal_Xout<<1) | BIT11 | BIT9); mdelay(1);
@@ -952,7 +952,7 @@ static void ActSetWirelessMode8185(struct net_device *dev, u8 btWirelessMode)
 		}
 	}
 
-	/* 
+	/*
 	 * 2. Swtich band: RF or BB specific actions,
 	 * for example, refresh tables in omc8255, or change initial gain if
 	 * necessary. Nothing to do for Zebra to switch band. Update current
@@ -1000,7 +1000,7 @@ static void MgntDisconnectIBSS(struct net_device *dev)
 	 *	then HW Radio ON, MgntQueue Stuck. Because Bcn DMA isn't
 	 *	complete, mgnt queue would stuck until Bcn packet send.
 	 *
-	 *	Disable Beacon Queue Own bit, suggested by jong	
+	 *	Disable Beacon Queue Own bit, suggested by jong
 	 */
 	ieee80211_stop_send_beacons(priv->ieee80211);
 
-- 
cgit 


From 51f79f1e30da4bee9f2edac8a81492bf4fa9228a Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Tue, 29 Oct 2013 23:05:23 +0200
Subject: Staging: rtl8187se: fix braces {} are not necessary for single
 statement blocks in r8185b_init.c

Fix checkpatch.pl issues with braces {} are not necessary
for single statement blocks in r8185b_init.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/r8185b_init.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8187se/r8185b_init.c b/drivers/staging/rtl8187se/r8185b_init.c
index 680f85913733..707d5e0f552d 100644
--- a/drivers/staging/rtl8187se/r8185b_init.c
+++ b/drivers/staging/rtl8187se/r8185b_init.c
@@ -915,9 +915,8 @@ static void ActUpdateChannelAccessSetting(struct net_device *dev,
 	 */
 	write_nic_byte(dev, AckTimeOutReg, 0x5B);
 
-	for (eACI = 0; eACI < AC_MAX; eACI++) {
+	for (eACI = 0; eACI < AC_MAX; eACI++)
 		write_nic_byte(dev, ACM_CONTROL, 0);
-	}
 }
 
 static void ActSetWirelessMode8185(struct net_device *dev, u8 btWirelessMode)
-- 
cgit 


From 28b22e0fcba536831f03f3b87524a781b1e7ff75 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Tue, 29 Oct 2013 23:05:24 +0200
Subject: Staging: rtl8187se: fix space prohibited after that open parenthesis
 '(' in r8185b_init.c

Fix checkpatch.pl issues with space prohibited after that
open parenthesis '(' in r8185b_init.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/r8185b_init.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rtl8187se/r8185b_init.c b/drivers/staging/rtl8187se/r8185b_init.c
index 707d5e0f552d..91e6b35de2b6 100644
--- a/drivers/staging/rtl8187se/r8185b_init.c
+++ b/drivers/staging/rtl8187se/r8185b_init.c
@@ -968,7 +968,7 @@ static void ActSetWirelessMode8185(struct net_device *dev, u8 btWirelessMode)
 	else if (ieee->mode == WIRELESS_MODE_G)
 		DMESG("WIRELESS_MODE_G\n");
 
-	ActUpdateChannelAccessSetting( dev, ieee->mode,
+	ActUpdateChannelAccessSetting(dev, ieee->mode,
 				      &priv->ChannelAccessSetting);
 }
 
-- 
cgit 


From 238822bc917be7d0d86101b5953704da89307067 Mon Sep 17 00:00:00 2001
From: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Date: Tue, 29 Oct 2013 23:05:25 +0200
Subject: Staging: rtl8187se: space prohibited before semicolon in
 r8185b_init.c

Fix checkpatch.pl issues with space prohibited
before semicolon in r8185b_init.c

Signed-off-by: Ebru Akagunduz <ebru.akagunduz@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8187se/r8185b_init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/rtl8187se/r8185b_init.c b/drivers/staging/rtl8187se/r8185b_init.c
index 91e6b35de2b6..dc52a3e584d8 100644
--- a/drivers/staging/rtl8187se/r8185b_init.c
+++ b/drivers/staging/rtl8187se/r8185b_init.c
@@ -758,7 +758,7 @@ static void HwConfigureRTL8185(struct net_device *dev)
 		write_nic_byte(dev, OFDM_TXAGC, 128);
 		val8 = val8 & 0xfe;
 	} else {
-		val8 = val8 | 0x01 ;
+		val8 = val8 | 0x01;
 	}
 
 
@@ -985,7 +985,7 @@ static void MgntDisconnectIBSS(struct net_device *dev)
 	struct r8180_priv *priv = (struct r8180_priv *)ieee80211_priv(dev);
 	u8 i;
 
-	for (i = 0; i < 6 ; i++)
+	for (i = 0; i < 6; i++)
 		priv->ieee80211->current_network.bssid[i] = 0x55;
 
 
-- 
cgit 


From 250ad590d6f12d93f4d85be305b0a598d609232e Mon Sep 17 00:00:00 2001
From: Ionut Nicu <ioan.nicu.ext@nsn.com>
Date: Fri, 11 Oct 2013 14:17:10 +0200
Subject: i2c: mux: gpio: use gpio_set_value_cansleep()

Some gpio chips may have get/set operations that
can sleep. gpio_set_value() only works for chips
which do not sleep, for the others we will get a
kernel warning. Using gpio_set_value_cansleep()
will work for both chips that do sleep and those
who don't.

Signed-off-by: Ionut Nicu <ioan.nicu.ext@nsn.com>
Acked-by: Peter Korsgaard <peter.korsgaard@barco.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
---
 drivers/i2c/muxes/i2c-mux-gpio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c
index 927a7deafd21..cf93f10b59af 100644
--- a/drivers/i2c/muxes/i2c-mux-gpio.c
+++ b/drivers/i2c/muxes/i2c-mux-gpio.c
@@ -30,8 +30,8 @@ static void i2c_mux_gpio_set(const struct gpiomux *mux, unsigned val)
 	int i;
 
 	for (i = 0; i < mux->data.n_gpios; i++)
-		gpio_set_value(mux->gpio_base + mux->data.gpios[i],
-			       val & (1 << i));
+		gpio_set_value_cansleep(mux->gpio_base + mux->data.gpios[i],
+					val & (1 << i));
 }
 
 static int i2c_mux_gpio_select(struct i2c_adapter *adap, void *data, u32 chan)
-- 
cgit 


From 8c0ec2500eeb89749341884a972860d7f9e56f9c Mon Sep 17 00:00:00 2001
From: Ionut Nicu <ioan.nicu.ext@nsn.com>
Date: Fri, 11 Oct 2013 12:09:57 +0200
Subject: i2c: mux: gpio: use reg value for i2c_add_mux_adapter

The i2c-mux driver requires that the chan_id parameter
passed to the i2c_add_mux_adapter() function is equal
to the reg value for that adapter:

for_each_child_of_node(mux_dev->of_node, child) {
	ret = of_property_read_u32(child, "reg", &reg);
	if (ret)
		continue;
	if (chan_id == reg) {
		priv->adap.dev.of_node = child;
		break;
	}
}

The i2c-mux-gpio driver uses an internal logical index
for chan_id when calling i2c_add_mux_adapter() instead
of using the reg value.

Because of this, there will problems in selecting the
right adapter when the i2c-mux-gpio's index into
mux->data.values doesn't match the reg value.

An example of such a case:

mux->data.values = { 1, 0 }

For chan_id = 0, i2c-mux will bind the adapter to the
of_node with reg = <0>, but when it will call the
select() callback with chan_id set to 0, the i2c-mux-gpio
will use it as an index into mux->data.values and it will
actually select the bus with reg = <1>.

Signed-off-by: Ionut Nicu <ioan.nicu.ext@nsn.com>
Acked-by: Alexander Sverdlin <alexander.sverdlin@nsn.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org
---
 drivers/i2c/muxes/i2c-mux-gpio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/muxes/i2c-mux-gpio.c b/drivers/i2c/muxes/i2c-mux-gpio.c
index cf93f10b59af..3d12e859e748 100644
--- a/drivers/i2c/muxes/i2c-mux-gpio.c
+++ b/drivers/i2c/muxes/i2c-mux-gpio.c
@@ -38,7 +38,7 @@ static int i2c_mux_gpio_select(struct i2c_adapter *adap, void *data, u32 chan)
 {
 	struct gpiomux *mux = data;
 
-	i2c_mux_gpio_set(mux, mux->data.values[chan]);
+	i2c_mux_gpio_set(mux, chan);
 
 	return 0;
 }
@@ -224,7 +224,7 @@ static int i2c_mux_gpio_probe(struct platform_device *pdev)
 		unsigned int class = mux->data.classes ? mux->data.classes[i] : 0;
 
 		mux->adap[i] = i2c_add_mux_adapter(parent, &pdev->dev, mux, nr,
-						   i, class,
+						   mux->data.values[i], class,
 						   i2c_mux_gpio_select, deselect);
 		if (!mux->adap[i]) {
 			ret = -ENODEV;
-- 
cgit 


From 59d3fe540454dd8fc48d4eda44e200f9c98bef10 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Wed, 30 Oct 2013 18:43:32 +0530
Subject: Staging: zram: Fix variable dereferenced before check

This patch fixes the following Smatch warning in zram_drv.c-
drivers/staging/zram/zram_drv.c:899
destroy_device() warn: variable dereferenced before check 'zram->disk' (see line 896)

Acked-by: Minchan Kim <minchan@kernel.org>
Acked-by: Jerome Marchand <jmarchan@redhat.com>
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/zram/zram_drv.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c
index 2c4ed52ca849..b704d06943f5 100644
--- a/drivers/staging/zram/zram_drv.c
+++ b/drivers/staging/zram/zram_drv.c
@@ -896,13 +896,10 @@ static void destroy_device(struct zram *zram)
 	sysfs_remove_group(&disk_to_dev(zram->disk)->kobj,
 			&zram_disk_attr_group);
 
-	if (zram->disk) {
-		del_gendisk(zram->disk);
-		put_disk(zram->disk);
-	}
+	del_gendisk(zram->disk);
+	put_disk(zram->disk);
 
-	if (zram->queue)
-		blk_cleanup_queue(zram->queue);
+	blk_cleanup_queue(zram->queue);
 }
 
 static int __init zram_init(void)
-- 
cgit 


From 00ecdd93a80fda1336bf5413b1d705c742a5b598 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 30 Oct 2013 08:34:59 +0100
Subject: ASoC: ab8500: Add missing of NULL check of devm_kzalloc()

Spotted by coverity CID 712316.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/ab8500-codec.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/codecs/ab8500-codec.c b/sound/soc/codecs/ab8500-codec.c
index 7f6ca111659b..10be4cbfe969 100644
--- a/sound/soc/codecs/ab8500-codec.c
+++ b/sound/soc/codecs/ab8500-codec.c
@@ -2570,6 +2570,8 @@ static int ab8500_codec_driver_probe(struct platform_device *pdev)
 	/* Create driver private-data struct */
 	drvdata = devm_kzalloc(&pdev->dev, sizeof(struct ab8500_codec_drvdata),
 			GFP_KERNEL);
+	if (!drvdata)
+		return -ENOMEM;
 	drvdata->sid_status = SID_UNCONFIGURED;
 	drvdata->anc_status = ANC_UNCONFIGURED;
 	dev_set_drvdata(&pdev->dev, drvdata);
-- 
cgit 


From 166a34d27fcad1eeb0322cff23939a1910f8a77c Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 30 Oct 2013 08:35:01 +0100
Subject: ASoC: ab8500: Fix invalid cast to long pointer

Don't cast to long pointers blindly just for using find_first_bit()
and co.  This is certainly not portable at all.

Reimplement the code with ffs() and fls() instead.  This is a slight
optimization, too.

Spotted by coverity CID 1056484 and 1056485.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/ab8500-codec.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/sound/soc/codecs/ab8500-codec.c b/sound/soc/codecs/ab8500-codec.c
index 10be4cbfe969..3ef481551740 100644
--- a/sound/soc/codecs/ab8500-codec.c
+++ b/sound/soc/codecs/ab8500-codec.c
@@ -2295,17 +2295,17 @@ static int ab8500_codec_set_dai_tdm_slot(struct snd_soc_dai *dai,
 	case 0:
 		break;
 	case 1:
-		slot = find_first_bit((unsigned long *)&tx_mask, 32);
+		slot = ffs(tx_mask);
 		snd_soc_update_bits(codec, AB8500_DASLOTCONF1, mask, slot);
 		snd_soc_update_bits(codec, AB8500_DASLOTCONF3, mask, slot);
 		snd_soc_update_bits(codec, AB8500_DASLOTCONF2, mask, slot);
 		snd_soc_update_bits(codec, AB8500_DASLOTCONF4, mask, slot);
 		break;
 	case 2:
-		slot = find_first_bit((unsigned long *)&tx_mask, 32);
+		slot = ffs(tx_mask);
 		snd_soc_update_bits(codec, AB8500_DASLOTCONF1, mask, slot);
 		snd_soc_update_bits(codec, AB8500_DASLOTCONF3, mask, slot);
-		slot = find_next_bit((unsigned long *)&tx_mask, 32, slot + 1);
+		slot = fls(tx_mask);
 		snd_soc_update_bits(codec, AB8500_DASLOTCONF2, mask, slot);
 		snd_soc_update_bits(codec, AB8500_DASLOTCONF4, mask, slot);
 		break;
@@ -2336,18 +2336,18 @@ static int ab8500_codec_set_dai_tdm_slot(struct snd_soc_dai *dai,
 	case 0:
 		break;
 	case 1:
-		slot = find_first_bit((unsigned long *)&rx_mask, 32);
+		slot = ffs(rx_mask);
 		snd_soc_update_bits(codec, AB8500_ADSLOTSEL(slot),
 				AB8500_MASK_SLOT(slot),
 				AB8500_ADSLOTSELX_AD_OUT_TO_SLOT(AB8500_AD_OUT3, slot));
 		break;
 	case 2:
-		slot = find_first_bit((unsigned long *)&rx_mask, 32);
+		slot = ffs(rx_mask);
 		snd_soc_update_bits(codec,
 				AB8500_ADSLOTSEL(slot),
 				AB8500_MASK_SLOT(slot),
 				AB8500_ADSLOTSELX_AD_OUT_TO_SLOT(AB8500_AD_OUT3, slot));
-		slot = find_next_bit((unsigned long *)&rx_mask, 32, slot + 1);
+		slot = fls(rx_mask);
 		snd_soc_update_bits(codec,
 				AB8500_ADSLOTSEL(slot),
 				AB8500_MASK_SLOT(slot),
-- 
cgit 


From 46a51c80216cb891f271ad021f59009f34677499 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Wed, 30 Oct 2013 18:36:32 +0530
Subject: Staging: zram: Fix access of NULL pointer

This patch fixes the bug in reset_store caused by accessing NULL pointer.

The bdev gets its value from bdget_disk() which could fail when memory
pressure is severe and hence can return NULL because allocation of
inode in bdget could fail.

Hence, this patch introduces a check for bdev to prevent reference to a
NULL pointer in the later part of the code. It also removes unnecessary
check of bdev for fsync_bdev().

Cc: stable <stable@vger.kernel.org>
Acked-by: Jerome Marchand <jmarchan@redhat.com>
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/zram/zram_drv.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c
index b704d06943f5..79ce363b2ea9 100644
--- a/drivers/staging/zram/zram_drv.c
+++ b/drivers/staging/zram/zram_drv.c
@@ -648,6 +648,9 @@ static ssize_t reset_store(struct device *dev,
 	zram = dev_to_zram(dev);
 	bdev = bdget_disk(zram->disk, 0);
 
+	if (!bdev)
+		return -ENOMEM;
+
 	/* Do not reset an active device! */
 	if (bdev->bd_holders)
 		return -EBUSY;
@@ -660,8 +663,7 @@ static ssize_t reset_store(struct device *dev,
 		return -EINVAL;
 
 	/* Make sure all pending I/O is finished */
-	if (bdev)
-		fsync_bdev(bdev);
+	fsync_bdev(bdev);
 
 	zram_reset_device(zram, true);
 	return len;
-- 
cgit 


From c36c89096cb9f95fbdb0a6f3d80d4b9a50537ed3 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 30 Oct 2013 08:35:03 +0100
Subject: ASoC: wm0010: Fix possible out-of-bounds array read

Spotted by coverity CID 744701.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm0010.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/soc/codecs/wm0010.c b/sound/soc/codecs/wm0010.c
index d5ebcb00019b..bf7804a12863 100644
--- a/sound/soc/codecs/wm0010.c
+++ b/sound/soc/codecs/wm0010.c
@@ -793,11 +793,11 @@ static int wm0010_set_sysclk(struct snd_soc_codec *codec, int source,
 		wm0010->max_spi_freq = 0;
 	} else {
 		for (i = 0; i < ARRAY_SIZE(pll_clock_map); i++)
-			if (freq >= pll_clock_map[i].max_sysclk)
+			if (freq >= pll_clock_map[i].max_sysclk) {
+				wm0010->max_spi_freq = pll_clock_map[i].max_pll_spi_speed;
+				wm0010->pll_clkctrl1 = pll_clock_map[i].pll_clkctrl1;
 				break;
-
-		wm0010->max_spi_freq = pll_clock_map[i].max_pll_spi_speed;
-		wm0010->pll_clkctrl1 = pll_clock_map[i].pll_clkctrl1;
+			}
 	}
 
 	return 0;
-- 
cgit 


From 8e38395360844806041ea69ab9690f5f174bc40c Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 30 Oct 2013 17:41:12 +0100
Subject: ALSA: hda - Add extra chmap for 2.1 outputs on ASUS laptops

ASUS N56VZ and N76VZ laptops have a bass speaker but its output comes
only from the right channel.  This patch adds the extra chmap specific
to these models.

Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=846531
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 30 ++++++++++++++++++++++++++++--
 1 file changed, 28 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 13ad49ca9357..2d7c86d81196 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4426,6 +4426,25 @@ static void alc272_fixup_mario(struct hda_codec *codec,
 		       "hda_codec: failed to override amp caps for NID 0x2\n");
 }
 
+static const struct snd_pcm_chmap_elem asus_pcm_2_1_chmaps[] = {
+	{ .channels = 2,
+	  .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR } },
+	{ .channels = 4,
+	  .map = { SNDRV_CHMAP_FL, SNDRV_CHMAP_FR,
+		   SNDRV_CHMAP_NA, SNDRV_CHMAP_LFE } }, /* LFE only on right */
+	{ }
+};
+
+/* override the 2.1 chmap */
+static void alc662_fixup_bass_chmap(struct hda_codec *codec,
+				    const struct hda_fixup *fix, int action)
+{
+	if (action == HDA_FIXUP_ACT_BUILD) {
+		struct alc_spec *spec = codec->spec;
+		spec->gen.pcm_rec[0].stream[0].chmap = asus_pcm_2_1_chmaps;
+	}
+}
+
 enum {
 	ALC662_FIXUP_ASPIRE,
 	ALC662_FIXUP_IDEAPAD,
@@ -4446,6 +4465,7 @@ enum {
 	ALC662_FIXUP_INV_DMIC,
 	ALC668_FIXUP_DELL_MIC_NO_PRESENCE,
 	ALC668_FIXUP_HEADSET_MODE,
+	ALC662_FIXUP_BASS_CHMAP,
 };
 
 static const struct hda_fixup alc662_fixups[] = {
@@ -4620,6 +4640,12 @@ static const struct hda_fixup alc662_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc_fixup_headset_mode_alc668,
 	},
+	[ALC662_FIXUP_BASS_CHMAP] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc662_fixup_bass_chmap,
+		.chained = true,
+		.chain_id = ALC662_FIXUP_ASUS_MODE4
+	},
 };
 
 static const struct snd_pci_quirk alc662_fixup_tbl[] = {
@@ -4633,8 +4659,8 @@ static const struct snd_pci_quirk alc662_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1028, 0x05d8, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x05db, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x103c, 0x1632, "HP RP5800", ALC662_FIXUP_HP_RP5800),
-	SND_PCI_QUIRK(0x1043, 0x1477, "ASUS N56VZ", ALC662_FIXUP_ASUS_MODE4),
-	SND_PCI_QUIRK(0x1043, 0x1bf3, "ASUS N76VZ", ALC662_FIXUP_ASUS_MODE4),
+	SND_PCI_QUIRK(0x1043, 0x1477, "ASUS N56VZ", ALC662_FIXUP_BASS_CHMAP),
+	SND_PCI_QUIRK(0x1043, 0x1bf3, "ASUS N76VZ", ALC662_FIXUP_BASS_CHMAP),
 	SND_PCI_QUIRK(0x1043, 0x8469, "ASUS mobo", ALC662_FIXUP_NO_JACK_DETECT),
 	SND_PCI_QUIRK(0x105b, 0x0cd6, "Foxconn", ALC662_FIXUP_ASUS_MODE2),
 	SND_PCI_QUIRK(0x144d, 0xc051, "Samsung R720", ALC662_FIXUP_IDEAPAD),
-- 
cgit 


From 0d768fcfc01098ae0e676c78746c9f4fd8228cd7 Mon Sep 17 00:00:00 2001
From: Boris BREZILLON <b.brezillon@overkiz.com>
Date: Fri, 18 Oct 2013 21:26:51 +0200
Subject: USB: ehci-atmel: add usb_clk for transition to CCF

The AT91 PMC (Power Management Controller) provides a USB clock used by
the different USB controllers (ehci, ohci and udc).
The atmel-ehci driver must configure the usb clock rate to 48Mhz in order
to get a fully functionnal USB host controller.
This configuration was formely done in mach-at91/clock.c, but will be
bypassed when moving to common clk framework.

This patch adds support for usb clock retrieval and configuration only if
CCF is enabled (CONFIG_COMMON_CLK).

Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ehci-atmel.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
index 3b645ff46f7b..f417526fb1f4 100644
--- a/drivers/usb/host/ehci-atmel.c
+++ b/drivers/usb/host/ehci-atmel.c
@@ -30,13 +30,17 @@ static const char hcd_name[] = "ehci-atmel";
 static struct hc_driver __read_mostly ehci_atmel_hc_driver;
 
 /* interface and function clocks */
-static struct clk *iclk, *fclk;
+static struct clk *iclk, *fclk, *uclk;
 static int clocked;
 
 /*-------------------------------------------------------------------------*/
 
 static void atmel_start_clock(void)
 {
+	if (IS_ENABLED(CONFIG_COMMON_CLK)) {
+		clk_set_rate(uclk, 48000000);
+		clk_prepare_enable(uclk);
+	}
 	clk_prepare_enable(iclk);
 	clk_prepare_enable(fclk);
 	clocked = 1;
@@ -46,6 +50,8 @@ static void atmel_stop_clock(void)
 {
 	clk_disable_unprepare(fclk);
 	clk_disable_unprepare(iclk);
+	if (IS_ENABLED(CONFIG_COMMON_CLK))
+		clk_disable_unprepare(uclk);
 	clocked = 0;
 }
 
@@ -130,6 +136,14 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev)
 		retval = -ENOENT;
 		goto fail_request_resource;
 	}
+	if (IS_ENABLED(CONFIG_COMMON_CLK)) {
+		uclk = devm_clk_get(&pdev->dev, "usb_clk");
+		if (IS_ERR(uclk)) {
+			dev_err(&pdev->dev, "failed to get uclk\n");
+			retval = PTR_ERR(uclk);
+			goto fail_request_resource;
+		}
+	}
 
 	ehci = hcd_to_ehci(hcd);
 	/* registers start at offset 0x0 */
-- 
cgit 


From c2ec3a732a6bb65635693f6d86d2b7bf073b6148 Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Wed, 30 Oct 2013 09:19:29 +0800
Subject: usb: chipidea: only get vbus regulator for non-peripheral mode

If the user chooses peripheral mode for this controller, the vbus
regulator doesn't need to get, since the host will supply the vbus,
it can save one vbus pin for other usage.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Tested-by: Frank Li <frank.li@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/chipidea/core.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 06204b77fc4c..5d8981c5235e 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -392,18 +392,6 @@ static irqreturn_t ci_irq(int irq, void *data)
 static int ci_get_platdata(struct device *dev,
 		struct ci_hdrc_platform_data *platdata)
 {
-	/* Get the vbus regulator */
-	platdata->reg_vbus = devm_regulator_get(dev, "vbus");
-	if (PTR_ERR(platdata->reg_vbus) == -EPROBE_DEFER) {
-		return -EPROBE_DEFER;
-	} else if (PTR_ERR(platdata->reg_vbus) == -ENODEV) {
-		platdata->reg_vbus = NULL; /* no vbus regualator is needed */
-	} else if (IS_ERR(platdata->reg_vbus)) {
-		dev_err(dev, "Getting regulator error: %ld\n",
-			PTR_ERR(platdata->reg_vbus));
-		return PTR_ERR(platdata->reg_vbus);
-	}
-
 	if (!platdata->phy_mode)
 		platdata->phy_mode = of_usb_get_phy_mode(dev->of_node);
 
@@ -413,6 +401,21 @@ static int ci_get_platdata(struct device *dev,
 	if (platdata->dr_mode == USB_DR_MODE_UNKNOWN)
 		platdata->dr_mode = USB_DR_MODE_OTG;
 
+	if (platdata->dr_mode != USB_DR_MODE_PERIPHERAL) {
+		/* Get the vbus regulator */
+		platdata->reg_vbus = devm_regulator_get(dev, "vbus");
+		if (PTR_ERR(platdata->reg_vbus) == -EPROBE_DEFER) {
+			return -EPROBE_DEFER;
+		} else if (PTR_ERR(platdata->reg_vbus) == -ENODEV) {
+			/* no vbus regualator is needed */
+			platdata->reg_vbus = NULL;
+		} else if (IS_ERR(platdata->reg_vbus)) {
+			dev_err(dev, "Getting regulator error: %ld\n",
+				PTR_ERR(platdata->reg_vbus));
+			return PTR_ERR(platdata->reg_vbus);
+		}
+	}
+
 	return 0;
 }
 
-- 
cgit 


From fe329a1a92cfe2d0c7e04fe3bc63761dc0f35950 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 30 Oct 2013 08:35:07 +0100
Subject: ASoC: wm8996: Fix negative array index read

Spotted by coverity CID 146355.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm8996.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c
index 46fe83d2b224..b70379ebd142 100644
--- a/sound/soc/codecs/wm8996.c
+++ b/sound/soc/codecs/wm8996.c
@@ -438,6 +438,8 @@ static int wm8996_get_retune_mobile_enum(struct snd_kcontrol *kcontrol,
 	struct wm8996_priv *wm8996 = snd_soc_codec_get_drvdata(codec);
 	int block = wm8996_get_retune_mobile_block(kcontrol->id.name);
 
+	if (block < 0)
+		return block;
 	ucontrol->value.enumerated.item[0] = wm8996->retune_mobile_cfg[block];
 
 	return 0;
-- 
cgit 


From 82f92672ac3e36458fdb298f798913da8460fce9 Mon Sep 17 00:00:00 2001
From: Huang Rui <ray.huang@amd.com>
Date: Wed, 30 Oct 2013 11:27:38 +0800
Subject: usb: usbtest: support usb2 extension descriptor test

In Test 9 of usbtest module, it is used for performing chapter 9 tests N
times.

USB2.0 Extension descriptor is one of the generic device-level capbility
descriptors which added in section 9.6.2.1 of USB 3.0 spec.

This patch adds to support getting usb2.0 extension descriptor test
scenario for USB 3.0.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/misc/usbtest.c | 77 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)

diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index e7235d5cce85..1c78e747f72b 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -606,6 +606,28 @@ static int is_good_config(struct usbtest_dev *tdev, int len)
 	return 0;
 }
 
+static int is_good_ext(struct usbtest_dev *tdev, u8 *buf)
+{
+	struct usb_ext_cap_descriptor *ext;
+	u32 attr;
+
+	ext = (struct usb_ext_cap_descriptor *) buf;
+
+	if (ext->bLength != USB_DT_USB_EXT_CAP_SIZE) {
+		ERROR(tdev, "bogus usb 2.0 extension descriptor length\n");
+		return 0;
+	}
+
+	attr = le32_to_cpu(ext->bmAttributes);
+	/* bits[1:4] is used and others are reserved */
+	if (attr & ~0x1e) {	/* reserved == 0 */
+		ERROR(tdev, "reserved bits set\n");
+		return 0;
+	}
+
+	return 1;
+}
+
 /* sanity test for standard requests working with usb_control_mesg() and some
  * of the utility functions which use it.
  *
@@ -694,12 +716,67 @@ static int ch9_postconfig(struct usbtest_dev *dev)
 	 * 3.0 spec
 	 */
 	if (le16_to_cpu(udev->descriptor.bcdUSB) >= 0x0300) {
+		struct usb_bos_descriptor *bos = NULL;
+		struct usb_dev_cap_header *header = NULL;
+		unsigned total, num, length;
+		u8 *buf;
+
 		retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf,
 				sizeof(*udev->bos->desc));
 		if (retval != sizeof(*udev->bos->desc)) {
 			dev_err(&iface->dev, "bos descriptor --> %d\n", retval);
 			return (retval < 0) ? retval : -EDOM;
 		}
+
+		bos = (struct usb_bos_descriptor *)dev->buf;
+		total = le16_to_cpu(bos->wTotalLength);
+		num = bos->bNumDeviceCaps;
+
+		if (total > TBUF_SIZE)
+			total = TBUF_SIZE;
+
+		/*
+		 * get generic device-level capability descriptors [9.6.2]
+		 * in USB 3.0 spec
+		 */
+		retval = usb_get_descriptor(udev, USB_DT_BOS, 0, dev->buf,
+				total);
+		if (retval != total) {
+			dev_err(&iface->dev, "bos descriptor set --> %d\n",
+					retval);
+			return (retval < 0) ? retval : -EDOM;
+		}
+
+		length = sizeof(*udev->bos->desc);
+		buf = dev->buf;
+		for (i = 0; i < num; i++) {
+			buf += length;
+			if (buf + sizeof(struct usb_dev_cap_header) >
+					dev->buf + total)
+				break;
+
+			header = (struct usb_dev_cap_header *)buf;
+			length = header->bLength;
+
+			if (header->bDescriptorType !=
+					USB_DT_DEVICE_CAPABILITY) {
+				dev_warn(&udev->dev, "not device capability descriptor, skip\n");
+				continue;
+			}
+
+			switch (header->bDevCapabilityType) {
+			case USB_CAP_TYPE_EXT:
+				if (buf + USB_DT_USB_EXT_CAP_SIZE >
+						dev->buf + total ||
+						!is_good_ext(dev, buf)) {
+					dev_err(&iface->dev, "bogus usb 2.0 extension descriptor\n");
+					return -EDOM;
+				}
+				break;
+			default:
+				break;
+			}
+		}
 	}
 
 	/* there's always [9.4.3] at least one config descriptor [9.6.3] */
-- 
cgit 


From b8fef79518f6a6843e53a4d578c20873ce742a1f Mon Sep 17 00:00:00 2001
From: Huang Rui <ray.huang@amd.com>
Date: Wed, 30 Oct 2013 11:27:39 +0800
Subject: usb: usbtest: support superspeed device capbility descriptor test

In Test 9 of usbtest module, it is used for performing chapter 9 tests N
times.

SuperSpeed USB Device Capability descriptor is one of the generic
device-level capbility descriptors which added in section 9.6.2.2 of USB
3.0 spec.

This patch adds to support getting SuperSpeed USB Device Capability
descriptor test scenario for USB 3.0.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/misc/usbtest.c | 37 +++++++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index 1c78e747f72b..d6fcbc477fc5 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -628,6 +628,35 @@ static int is_good_ext(struct usbtest_dev *tdev, u8 *buf)
 	return 1;
 }
 
+static int is_good_ss_cap(struct usbtest_dev *tdev, u8 *buf)
+{
+	struct usb_ss_cap_descriptor *ss;
+
+	ss = (struct usb_ss_cap_descriptor *) buf;
+
+	if (ss->bLength != USB_DT_USB_SS_CAP_SIZE) {
+		ERROR(tdev, "bogus superspeed device capability descriptor length\n");
+		return 0;
+	}
+
+	/*
+	 * only bit[1] of bmAttributes is used for LTM and others are
+	 * reserved
+	 */
+	if (ss->bmAttributes & ~0x02) {	/* reserved == 0 */
+		ERROR(tdev, "reserved bits set in bmAttributes\n");
+		return 0;
+	}
+
+	/* bits[0:3] of wSpeedSupported is used and others are reserved */
+	if (le16_to_cpu(ss->wSpeedSupported) & ~0x0f) {	/* reserved == 0 */
+		ERROR(tdev, "reserved bits set in wSpeedSupported\n");
+		return 0;
+	}
+
+	return 1;
+}
+
 /* sanity test for standard requests working with usb_control_mesg() and some
  * of the utility functions which use it.
  *
@@ -773,6 +802,14 @@ static int ch9_postconfig(struct usbtest_dev *dev)
 					return -EDOM;
 				}
 				break;
+			case USB_SS_CAP_TYPE:
+				if (buf + USB_DT_USB_SS_CAP_SIZE >
+						dev->buf + total ||
+						!is_good_ss_cap(dev, buf)) {
+					dev_err(&iface->dev, "bogus superspeed device capability descriptor\n");
+					return -EDOM;
+				}
+				break;
 			default:
 				break;
 			}
-- 
cgit 


From 5a7615cf1fcaaf1598b5689e54915d88c2344788 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 30 Oct 2013 08:35:06 +0100
Subject: ASoC: rt5640: Fix ignored error checks

The negative error value returned from get_sdp_info() is ignored
because it's assigned to unsigned variables.

Spotted by coverity CIDs 1042657, 1042658.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/rt5640.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/rt5640.c b/sound/soc/codecs/rt5640.c
index 4d041d376f31..a3fb41179636 100644
--- a/sound/soc/codecs/rt5640.c
+++ b/sound/soc/codecs/rt5640.c
@@ -1604,8 +1604,8 @@ static int rt5640_hw_params(struct snd_pcm_substream *substream,
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_codec *codec = rtd->codec;
 	struct rt5640_priv *rt5640 = snd_soc_codec_get_drvdata(codec);
-	unsigned int val_len = 0, val_clk, mask_clk, dai_sel;
-	int pre_div, bclk_ms, frame_size;
+	unsigned int val_len = 0, val_clk, mask_clk;
+	int dai_sel, pre_div, bclk_ms, frame_size;
 
 	rt5640->lrck[dai->id] = params_rate(params);
 	pre_div = get_clk_info(rt5640->sysclk, rt5640->lrck[dai->id]);
@@ -1675,7 +1675,8 @@ static int rt5640_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 {
 	struct snd_soc_codec *codec = dai->codec;
 	struct rt5640_priv *rt5640 = snd_soc_codec_get_drvdata(codec);
-	unsigned int reg_val = 0, dai_sel;
+	unsigned int reg_val = 0;
+	int dai_sel;
 
 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 	case SND_SOC_DAIFMT_CBM_CFM:
-- 
cgit 


From 8e29217f931dd8a76cdb8c88aa0975fa15f0f684 Mon Sep 17 00:00:00 2001
From: Huang Rui <ray.huang@amd.com>
Date: Wed, 30 Oct 2013 11:27:40 +0800
Subject: usb: usbtest: support container id descriptor test

In Test 9 of usbtest module, it is used for performing chapter 9 tests N
times.

Container ID descriptor is one of the generic device-level capbility
descriptors which added in section 9.6.2.3 of USB 3.0 spec.

This patch adds to support getting Container ID descriptor test scenario
for USB 3.0.

Signed-off-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/misc/usbtest.c | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index d6fcbc477fc5..b4152820d655 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -657,6 +657,25 @@ static int is_good_ss_cap(struct usbtest_dev *tdev, u8 *buf)
 	return 1;
 }
 
+static int is_good_con_id(struct usbtest_dev *tdev, u8 *buf)
+{
+	struct usb_ss_container_id_descriptor *con_id;
+
+	con_id = (struct usb_ss_container_id_descriptor *) buf;
+
+	if (con_id->bLength != USB_DT_USB_SS_CONTN_ID_SIZE) {
+		ERROR(tdev, "bogus container id descriptor length\n");
+		return 0;
+	}
+
+	if (con_id->bReserved) {	/* reserved == 0 */
+		ERROR(tdev, "reserved bits set\n");
+		return 0;
+	}
+
+	return 1;
+}
+
 /* sanity test for standard requests working with usb_control_mesg() and some
  * of the utility functions which use it.
  *
@@ -810,6 +829,14 @@ static int ch9_postconfig(struct usbtest_dev *dev)
 					return -EDOM;
 				}
 				break;
+			case CONTAINER_ID_TYPE:
+				if (buf + USB_DT_USB_SS_CONTN_ID_SIZE >
+						dev->buf + total ||
+						!is_good_con_id(dev, buf)) {
+					dev_err(&iface->dev, "bogus container id descriptor\n");
+					return -EDOM;
+				}
+				break;
 			default:
 				break;
 			}
-- 
cgit 


From ed5d6ca0038f274aada1244358ad89b7941bdcbf Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 30 Oct 2013 11:15:51 +0800
Subject: staging: drm/imx: fix return value check in ipu_add_subdevice_pdata()

In case of error, the function platform_device_register_data() returns
ERR_PTR() and never returns NULL. The NULL test in the return value check
should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/imx-drm/ipu-v3/ipu-common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/imx-drm/ipu-v3/ipu-common.c b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
index 77a0c65a3dbe..7a22ce619ed2 100644
--- a/drivers/staging/imx-drm/ipu-v3/ipu-common.c
+++ b/drivers/staging/imx-drm/ipu-v3/ipu-common.c
@@ -1006,7 +1006,7 @@ static int ipu_add_subdevice_pdata(struct device *dev,
 	pdev = platform_device_register_data(dev, reg->name, ipu_client_id++,
 			&reg->pdata, sizeof(struct ipu_platform_reg));
 
-	return pdev ? 0 : -EINVAL;
+	return PTR_ERR_OR_ZERO(pdev);
 }
 
 static int ipu_add_client_devices(struct ipu_soc *ipu)
-- 
cgit 


From 86d6275a8f1b7ba64b79a46c7616264302f44410 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 30 Oct 2013 13:35:20 +0800
Subject: tifm: fix error return code in tifm_7xx1_probe()

Fix to return ENODEV in the pci ioremap error handling case
instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/tifm_7xx1.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/misc/tifm_7xx1.c b/drivers/misc/tifm_7xx1.c
index ae282a100429..a606c8901e18 100644
--- a/drivers/misc/tifm_7xx1.c
+++ b/drivers/misc/tifm_7xx1.c
@@ -356,8 +356,10 @@ static int tifm_7xx1_probe(struct pci_dev *dev,
 	pci_set_drvdata(dev, fm);
 
 	fm->addr = pci_ioremap_bar(dev, 0);
-	if (!fm->addr)
+	if (!fm->addr) {
+		rc = -ENODEV;
 		goto err_out_free;
+	}
 
 	rc = request_irq(dev->irq, tifm_7xx1_isr, IRQF_SHARED, DRIVER_NAME, fm);
 	if (rc)
-- 
cgit 


From 425792266a40189e0b3fec02cb59a69935d8c58c Mon Sep 17 00:00:00 2001
From: Ashutosh Dixit <ashutosh.dixit@intel.com>
Date: Tue, 29 Oct 2013 17:09:59 -0700
Subject: misc: mic: Fixes for randconfig build errors and warnings.

This patch fixes the build errors and warnings reported at
https://lkml.org/lkml/2013/10/29/421.

Co-author: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Reviewed-by: Sudeep Dutt <sudeep.dutt@intel.com>
Reported-by: Jim Davis <jim.epost@gmail.com>
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/misc/mic/host/mic_boot.c   | 1 +
 drivers/misc/mic/host/mic_fops.c   | 1 +
 drivers/misc/mic/host/mic_virtio.c | 4 ++--
 3 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/misc/mic/host/mic_boot.c b/drivers/misc/mic/host/mic_boot.c
index d56b8bf4eaf6..b079c65eed6d 100644
--- a/drivers/misc/mic/host/mic_boot.c
+++ b/drivers/misc/mic/host/mic_boot.c
@@ -20,6 +20,7 @@
  */
 #include <linux/delay.h>
 #include <linux/firmware.h>
+#include <linux/pci.h>
 
 #include <linux/mic_common.h>
 #include "../common/mic_dev.h"
diff --git a/drivers/misc/mic/host/mic_fops.c b/drivers/misc/mic/host/mic_fops.c
index 8dc6ff16845a..85776d7327f3 100644
--- a/drivers/misc/mic/host/mic_fops.c
+++ b/drivers/misc/mic/host/mic_fops.c
@@ -19,6 +19,7 @@
  *
  */
 #include <linux/poll.h>
+#include <linux/pci.h>
 
 #include <linux/mic_common.h>
 #include "../common/mic_dev.h"
diff --git a/drivers/misc/mic/host/mic_virtio.c b/drivers/misc/mic/host/mic_virtio.c
index 0c883cd4f1d1..5b8494bd1e00 100644
--- a/drivers/misc/mic/host/mic_virtio.c
+++ b/drivers/misc/mic/host/mic_virtio.c
@@ -517,10 +517,10 @@ int mic_virtio_add_device(struct mic_vdev *mvdev,
 			void __user *argp)
 {
 	struct mic_device *mdev = mvdev->mdev;
-	struct mic_device_desc *dd;
+	struct mic_device_desc *dd = NULL;
 	struct mic_vqconfig *vqconfig;
 	int vr_size, i, j, ret;
-	u8 type;
+	u8 type = 0;
 	s8 db;
 	char irqname[10];
 	struct mic_bootparam *bootparam = mdev->dp;
-- 
cgit 


From c92f06a1dea1e444213d860a20023f72c134e20a Mon Sep 17 00:00:00 2001
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Date: Tue, 29 Oct 2013 22:50:49 +0200
Subject: iwlwifi: mvm: BT Coex - fix copy paste issue

Putting the context id of the primary phy context in
the placeholder of the secondary is obviously a bad
idea.
Spotted by smatch.

Fixes: dac94da8dba3 ("iwlwifi: mvm: new BT Coex API")
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
---
 drivers/net/wireless/iwlwifi/mvm/bt-coex.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
index 7444b2ac5b0a..5d066cbc5ac7 100644
--- a/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
+++ b/drivers/net/wireless/iwlwifi/mvm/bt-coex.c
@@ -755,7 +755,7 @@ static void iwl_mvm_bt_coex_notif_handle(struct iwl_mvm *mvm)
 
 		cmd.bt_secondary_ci =
 			iwl_ci_mask[chan->def.chan->hw_value][ci_bw_idx];
-		cmd.secondary_ch_phy_id = *((u16 *)data.primary->drv_priv);
+		cmd.secondary_ch_phy_id = *((u16 *)data.secondary->drv_priv);
 	}
 
 	rcu_read_unlock();
-- 
cgit 


From 1c1365e374bfadf908eae02cded7abb9e672c9d4 Mon Sep 17 00:00:00 2001
From: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Date: Wed, 30 Oct 2013 14:08:32 +0200
Subject: sysfs: return correct error code on unimplemented mmap()

Both POSIX.1-2008 and Linux Programmer's Manual have a dedicated return
error code for a case, when a file doesn't support mmap(), it's ENODEV.

This change replaces overloaded EINVAL with ENODEV in a situation
described above for sysfs binary files.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/file.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 0d7368d43619..382db3c045f3 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -477,7 +477,6 @@ static int sysfs_bin_mmap(struct file *file, struct vm_area_struct *vma)
 	if (!sysfs_get_active(of->sd))
 		goto out_unlock;
 
-	rc = -EINVAL;
 	if (!battr->mmap)
 		goto out_put;
 
-- 
cgit 


From ba3eb9fce31571257f90c5e610ad74d6dd59b1f2 Mon Sep 17 00:00:00 2001
From: Valentine Barshak <valentine.barshak@cogentembedded.com>
Date: Tue, 29 Oct 2013 20:12:51 +0400
Subject: PCI: Add R-Car Gen2 internal PCI support

This adds internal PCI controller driver for R-Car Gen2 SoC.  There are
three PCI controllers available with only a single EHCI/OHCI device
built-in on each PCI bus.  This gives us three USB channels.  Channel 0 is
shared with the USBHS device, while channel 2 is shared with the USBSS.

The PCI controllers do not support I/O port space mapping, and it is not
needed here.

Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/host/Kconfig         |   8 +
 drivers/pci/host/Makefile        |   1 +
 drivers/pci/host/pci-rcar-gen2.c | 333 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 342 insertions(+)
 create mode 100644 drivers/pci/host/pci-rcar-gen2.c

diff --git a/drivers/pci/host/Kconfig b/drivers/pci/host/Kconfig
index 3d9504811126..2e33c2ba825f 100644
--- a/drivers/pci/host/Kconfig
+++ b/drivers/pci/host/Kconfig
@@ -19,4 +19,12 @@ config PCI_TEGRA
 	bool "NVIDIA Tegra PCIe controller"
 	depends on ARCH_TEGRA
 
+config PCI_RCAR_GEN2
+	bool "Renesas R-Car Gen2 Internal PCI controller"
+	depends on ARM && (ARCH_R8A7790 || ARCH_R8A7791 || COMPILE_TEST)
+	help
+	  Say Y here if you want internal PCI support on R-Car Gen2 SoC.
+	  There are 3 internal PCI controllers available with a single
+	  built-in EHCI/OHCI host controller present on each one.
+
 endmenu
diff --git a/drivers/pci/host/Makefile b/drivers/pci/host/Makefile
index c9a997b2690d..63d972775289 100644
--- a/drivers/pci/host/Makefile
+++ b/drivers/pci/host/Makefile
@@ -2,3 +2,4 @@ obj-$(CONFIG_PCIE_DW) += pcie-designware.o
 obj-$(CONFIG_PCI_EXYNOS) += pci-exynos.o
 obj-$(CONFIG_PCI_MVEBU) += pci-mvebu.o
 obj-$(CONFIG_PCI_TEGRA) += pci-tegra.o
+obj-$(CONFIG_PCI_RCAR_GEN2) += pci-rcar-gen2.o
diff --git a/drivers/pci/host/pci-rcar-gen2.c b/drivers/pci/host/pci-rcar-gen2.c
new file mode 100644
index 000000000000..cbaa5c4397e3
--- /dev/null
+++ b/drivers/pci/host/pci-rcar-gen2.c
@@ -0,0 +1,333 @@
+/*
+ *  pci-rcar-gen2: internal PCI bus support
+ *
+ * Copyright (C) 2013 Renesas Solutions Corp.
+ * Copyright (C) 2013 Cogent Embedded, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+
+/* AHB-PCI Bridge PCI communication registers */
+#define RCAR_AHBPCI_PCICOM_OFFSET	0x800
+
+#define RCAR_PCIAHB_WIN1_CTR_REG	(RCAR_AHBPCI_PCICOM_OFFSET + 0x00)
+#define RCAR_PCIAHB_WIN2_CTR_REG	(RCAR_AHBPCI_PCICOM_OFFSET + 0x04)
+#define RCAR_PCIAHB_PREFETCH0		0x0
+#define RCAR_PCIAHB_PREFETCH4		0x1
+#define RCAR_PCIAHB_PREFETCH8		0x2
+#define RCAR_PCIAHB_PREFETCH16		0x3
+
+#define RCAR_AHBPCI_WIN1_CTR_REG	(RCAR_AHBPCI_PCICOM_OFFSET + 0x10)
+#define RCAR_AHBPCI_WIN2_CTR_REG	(RCAR_AHBPCI_PCICOM_OFFSET + 0x14)
+#define RCAR_AHBPCI_WIN_CTR_MEM		(3 << 1)
+#define RCAR_AHBPCI_WIN_CTR_CFG		(5 << 1)
+#define RCAR_AHBPCI_WIN1_HOST		(1 << 30)
+#define RCAR_AHBPCI_WIN1_DEVICE		(1 << 31)
+
+#define RCAR_PCI_INT_ENABLE_REG		(RCAR_AHBPCI_PCICOM_OFFSET + 0x20)
+#define RCAR_PCI_INT_STATUS_REG		(RCAR_AHBPCI_PCICOM_OFFSET + 0x24)
+#define RCAR_PCI_INT_A			(1 << 16)
+#define RCAR_PCI_INT_B			(1 << 17)
+#define RCAR_PCI_INT_PME		(1 << 19)
+
+#define RCAR_AHB_BUS_CTR_REG		(RCAR_AHBPCI_PCICOM_OFFSET + 0x30)
+#define RCAR_AHB_BUS_MMODE_HTRANS	(1 << 0)
+#define RCAR_AHB_BUS_MMODE_BYTE_BURST	(1 << 1)
+#define RCAR_AHB_BUS_MMODE_WR_INCR	(1 << 2)
+#define RCAR_AHB_BUS_MMODE_HBUS_REQ	(1 << 7)
+#define RCAR_AHB_BUS_SMODE_READYCTR	(1 << 17)
+#define RCAR_AHB_BUS_MODE		(RCAR_AHB_BUS_MMODE_HTRANS |	\
+					RCAR_AHB_BUS_MMODE_BYTE_BURST |	\
+					RCAR_AHB_BUS_MMODE_WR_INCR |	\
+					RCAR_AHB_BUS_MMODE_HBUS_REQ |	\
+					RCAR_AHB_BUS_SMODE_READYCTR)
+
+#define RCAR_USBCTR_REG			(RCAR_AHBPCI_PCICOM_OFFSET + 0x34)
+#define RCAR_USBCTR_USBH_RST		(1 << 0)
+#define RCAR_USBCTR_PCICLK_MASK		(1 << 1)
+#define RCAR_USBCTR_PLL_RST		(1 << 2)
+#define RCAR_USBCTR_DIRPD		(1 << 8)
+#define RCAR_USBCTR_PCIAHB_WIN2_EN	(1 << 9)
+#define RCAR_USBCTR_PCIAHB_WIN1_256M	(0 << 10)
+#define RCAR_USBCTR_PCIAHB_WIN1_512M	(1 << 10)
+#define RCAR_USBCTR_PCIAHB_WIN1_1G	(2 << 10)
+#define RCAR_USBCTR_PCIAHB_WIN1_2G	(3 << 10)
+#define RCAR_USBCTR_PCIAHB_WIN1_MASK	(3 << 10)
+
+#define RCAR_PCI_ARBITER_CTR_REG	(RCAR_AHBPCI_PCICOM_OFFSET + 0x40)
+#define RCAR_PCI_ARBITER_PCIREQ0	(1 << 0)
+#define RCAR_PCI_ARBITER_PCIREQ1	(1 << 1)
+#define RCAR_PCI_ARBITER_PCIBP_MODE	(1 << 12)
+
+#define RCAR_PCI_UNIT_REV_REG		(RCAR_AHBPCI_PCICOM_OFFSET + 0x48)
+
+/* Number of internal PCI controllers */
+#define RCAR_PCI_NR_CONTROLLERS		3
+
+struct rcar_pci_priv {
+	void __iomem *reg;
+	struct resource io_res;
+	struct resource mem_res;
+	struct resource *cfg_res;
+	int irq;
+};
+
+/* PCI configuration space operations */
+static void __iomem *rcar_pci_cfg_base(struct pci_bus *bus, unsigned int devfn,
+				       int where)
+{
+	struct pci_sys_data *sys = bus->sysdata;
+	struct rcar_pci_priv *priv = sys->private_data;
+	int slot, val;
+
+	if (sys->busnr != bus->number || PCI_FUNC(devfn))
+		return NULL;
+
+	/* Only one EHCI/OHCI device built-in */
+	slot = PCI_SLOT(devfn);
+	if (slot > 2)
+		return NULL;
+
+	val = slot ? RCAR_AHBPCI_WIN1_DEVICE | RCAR_AHBPCI_WIN_CTR_CFG :
+		     RCAR_AHBPCI_WIN1_HOST | RCAR_AHBPCI_WIN_CTR_CFG;
+
+	iowrite32(val, priv->reg + RCAR_AHBPCI_WIN1_CTR_REG);
+	return priv->reg + (slot >> 1) * 0x100 + where;
+}
+
+static int rcar_pci_read_config(struct pci_bus *bus, unsigned int devfn,
+				int where, int size, u32 *val)
+{
+	void __iomem *reg = rcar_pci_cfg_base(bus, devfn, where);
+
+	if (!reg)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	switch (size) {
+	case 1:
+		*val = ioread8(reg);
+		break;
+	case 2:
+		*val = ioread16(reg);
+		break;
+	default:
+		*val = ioread32(reg);
+		break;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int rcar_pci_write_config(struct pci_bus *bus, unsigned int devfn,
+				 int where, int size, u32 val)
+{
+	void __iomem *reg = rcar_pci_cfg_base(bus, devfn, where);
+
+	if (!reg)
+		return PCIBIOS_DEVICE_NOT_FOUND;
+
+	switch (size) {
+	case 1:
+		iowrite8(val, reg);
+		break;
+	case 2:
+		iowrite16(val, reg);
+		break;
+	default:
+		iowrite32(val, reg);
+		break;
+	}
+
+	return PCIBIOS_SUCCESSFUL;
+}
+
+/* PCI interrupt mapping */
+static int __init rcar_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	struct pci_sys_data *sys = dev->bus->sysdata;
+	struct rcar_pci_priv *priv = sys->private_data;
+
+	return priv->irq;
+}
+
+/* PCI host controller setup */
+static int __init rcar_pci_setup(int nr, struct pci_sys_data *sys)
+{
+	struct rcar_pci_priv *priv = sys->private_data;
+	void __iomem *reg = priv->reg;
+	u32 val;
+
+	val = ioread32(reg + RCAR_PCI_UNIT_REV_REG);
+	pr_info("PCI: bus%u revision %x\n", sys->busnr, val);
+
+	/* Disable Direct Power Down State and assert reset */
+	val = ioread32(reg + RCAR_USBCTR_REG) & ~RCAR_USBCTR_DIRPD;
+	val |= RCAR_USBCTR_USBH_RST | RCAR_USBCTR_PLL_RST;
+	iowrite32(val, reg + RCAR_USBCTR_REG);
+	udelay(4);
+
+	/* De-assert reset and set PCIAHB window1 size to 1GB */
+	val &= ~(RCAR_USBCTR_PCIAHB_WIN1_MASK | RCAR_USBCTR_PCICLK_MASK |
+		 RCAR_USBCTR_USBH_RST | RCAR_USBCTR_PLL_RST);
+	iowrite32(val | RCAR_USBCTR_PCIAHB_WIN1_1G, reg + RCAR_USBCTR_REG);
+
+	/* Configure AHB master and slave modes */
+	iowrite32(RCAR_AHB_BUS_MODE, reg + RCAR_AHB_BUS_CTR_REG);
+
+	/* Configure PCI arbiter */
+	val = ioread32(reg + RCAR_PCI_ARBITER_CTR_REG);
+	val |= RCAR_PCI_ARBITER_PCIREQ0 | RCAR_PCI_ARBITER_PCIREQ1 |
+	       RCAR_PCI_ARBITER_PCIBP_MODE;
+	iowrite32(val, reg + RCAR_PCI_ARBITER_CTR_REG);
+
+	/* PCI-AHB mapping: 0x40000000-0x80000000 */
+	iowrite32(0x40000000 | RCAR_PCIAHB_PREFETCH16,
+		  reg + RCAR_PCIAHB_WIN1_CTR_REG);
+
+	/* AHB-PCI mapping: OHCI/EHCI registers */
+	val = priv->mem_res.start | RCAR_AHBPCI_WIN_CTR_MEM;
+	iowrite32(val, reg + RCAR_AHBPCI_WIN2_CTR_REG);
+
+	/* Enable AHB-PCI bridge PCI configuration access */
+	iowrite32(RCAR_AHBPCI_WIN1_HOST | RCAR_AHBPCI_WIN_CTR_CFG,
+		  reg + RCAR_AHBPCI_WIN1_CTR_REG);
+	/* Set PCI-AHB Window1 address */
+	iowrite32(0x40000000 | PCI_BASE_ADDRESS_MEM_PREFETCH,
+		  reg + PCI_BASE_ADDRESS_1);
+	/* Set AHB-PCI bridge PCI communication area address */
+	val = priv->cfg_res->start + RCAR_AHBPCI_PCICOM_OFFSET;
+	iowrite32(val, reg + PCI_BASE_ADDRESS_0);
+
+	val = ioread32(reg + PCI_COMMAND);
+	val |= PCI_COMMAND_SERR | PCI_COMMAND_PARITY |
+	       PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER;
+	iowrite32(val, reg + PCI_COMMAND);
+
+	/* Enable PCI interrupts */
+	iowrite32(RCAR_PCI_INT_A | RCAR_PCI_INT_B | RCAR_PCI_INT_PME,
+		  reg + RCAR_PCI_INT_ENABLE_REG);
+
+	/* Add PCI resources */
+	pci_add_resource(&sys->resources, &priv->io_res);
+	pci_add_resource(&sys->resources, &priv->mem_res);
+
+	return 1;
+}
+
+static struct pci_ops rcar_pci_ops = {
+	.read	= rcar_pci_read_config,
+	.write	= rcar_pci_write_config,
+};
+
+static struct hw_pci rcar_hw_pci __initdata = {
+	.map_irq	= rcar_pci_map_irq,
+	.ops		= &rcar_pci_ops,
+	.setup		= rcar_pci_setup,
+};
+
+static int rcar_pci_count __initdata;
+
+static int __init rcar_pci_add_controller(struct rcar_pci_priv *priv)
+{
+	void **private_data;
+	int count;
+
+	if (rcar_hw_pci.nr_controllers < rcar_pci_count)
+		goto add_priv;
+
+	/* (Re)allocate private data pointer array if needed */
+	count = rcar_pci_count + RCAR_PCI_NR_CONTROLLERS;
+	private_data = kzalloc(count * sizeof(void *), GFP_KERNEL);
+	if (!private_data)
+		return -ENOMEM;
+
+	rcar_pci_count = count;
+	if (rcar_hw_pci.private_data) {
+		memcpy(private_data, rcar_hw_pci.private_data,
+		       rcar_hw_pci.nr_controllers * sizeof(void *));
+		kfree(rcar_hw_pci.private_data);
+	}
+
+	rcar_hw_pci.private_data = private_data;
+
+add_priv:
+	/* Add private data pointer to the array */
+	rcar_hw_pci.private_data[rcar_hw_pci.nr_controllers++] = priv;
+	return 0;
+}
+
+static int __init rcar_pci_probe(struct platform_device *pdev)
+{
+	struct resource *cfg_res, *mem_res;
+	struct rcar_pci_priv *priv;
+	void __iomem *reg;
+
+	cfg_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	reg = devm_ioremap_resource(&pdev->dev, cfg_res);
+	if (!reg)
+		return -ENODEV;
+
+	mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
+	if (!mem_res || !mem_res->start)
+		return -ENODEV;
+
+	priv = devm_kzalloc(&pdev->dev,
+			    sizeof(struct rcar_pci_priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	priv->mem_res = *mem_res;
+	/*
+	 * The controller does not support/use port I/O,
+	 * so setup a dummy port I/O region here.
+	 */
+	priv->io_res.start = priv->mem_res.start;
+	priv->io_res.end = priv->mem_res.end;
+	priv->io_res.flags = IORESOURCE_IO;
+
+	priv->cfg_res = cfg_res;
+
+	priv->irq = platform_get_irq(pdev, 0);
+	priv->reg = reg;
+
+	return rcar_pci_add_controller(priv);
+}
+
+static struct platform_driver rcar_pci_driver = {
+	.driver = {
+		.name = "pci-rcar-gen2",
+	},
+};
+
+static int __init rcar_pci_init(void)
+{
+	int retval;
+
+	retval = platform_driver_probe(&rcar_pci_driver, rcar_pci_probe);
+	if (!retval)
+		pci_common_init(&rcar_hw_pci);
+
+	/* Private data pointer array is not needed any more */
+	kfree(rcar_hw_pci.private_data);
+	rcar_hw_pci.private_data = NULL;
+
+	return retval;
+}
+
+subsys_initcall(rcar_pci_init);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Renesas R-Car Gen2 internal PCI");
+MODULE_AUTHOR("Valentine Barshak <valentine.barshak@cogentembedded.com>");
-- 
cgit 


From 9c15bb1d0a8411f9bb3395d21d5309bde7da0c1c Mon Sep 17 00:00:00 2001
From: Borislav Petkov <bp@suse.de>
Date: Sun, 22 Sep 2013 16:44:50 +0200
Subject: kvm: Add KVM_GET_EMULATED_CPUID

Add a kvm ioctl which states which system functionality kvm emulates.
The format used is that of CPUID and we return the corresponding CPUID
bits set for which we do emulate functionality.

Make sure ->padding is being passed on clean from userspace so that we
can use it for something in the future, after the ioctl gets cast in
stone.

s/kvm_dev_ioctl_get_supported_cpuid/kvm_dev_ioctl_get_cpuid/ while at
it.

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 Documentation/virtual/kvm/api.txt | 77 +++++++++++++++++++++++++++++++++++++--
 arch/x86/include/uapi/asm/kvm.h   |  6 +--
 arch/x86/kvm/cpuid.c              | 57 ++++++++++++++++++++++++++---
 arch/x86/kvm/cpuid.h              |  5 ++-
 arch/x86/kvm/x86.c                |  9 +++--
 include/uapi/linux/kvm.h          |  2 +
 6 files changed, 139 insertions(+), 17 deletions(-)

diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index a89a5ee0b940..488964414f04 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -1122,9 +1122,9 @@ struct kvm_cpuid2 {
 	struct kvm_cpuid_entry2 entries[0];
 };
 
-#define KVM_CPUID_FLAG_SIGNIFCANT_INDEX 1
-#define KVM_CPUID_FLAG_STATEFUL_FUNC    2
-#define KVM_CPUID_FLAG_STATE_READ_NEXT  4
+#define KVM_CPUID_FLAG_SIGNIFCANT_INDEX		BIT(0)
+#define KVM_CPUID_FLAG_STATEFUL_FUNC		BIT(1)
+#define KVM_CPUID_FLAG_STATE_READ_NEXT		BIT(2)
 
 struct kvm_cpuid_entry2 {
 	__u32 function;
@@ -2684,6 +2684,77 @@ and usually define the validity of a groups of registers. (e.g. one bit
 };
 
 
+4.81 KVM_GET_EMULATED_CPUID
+
+Capability: KVM_CAP_EXT_EMUL_CPUID
+Architectures: x86
+Type: system ioctl
+Parameters: struct kvm_cpuid2 (in/out)
+Returns: 0 on success, -1 on error
+
+struct kvm_cpuid2 {
+	__u32 nent;
+	__u32 flags;
+	struct kvm_cpuid_entry2 entries[0];
+};
+
+The member 'flags' is used for passing flags from userspace.
+
+#define KVM_CPUID_FLAG_SIGNIFCANT_INDEX		BIT(0)
+#define KVM_CPUID_FLAG_STATEFUL_FUNC		BIT(1)
+#define KVM_CPUID_FLAG_STATE_READ_NEXT		BIT(2)
+
+struct kvm_cpuid_entry2 {
+	__u32 function;
+	__u32 index;
+	__u32 flags;
+	__u32 eax;
+	__u32 ebx;
+	__u32 ecx;
+	__u32 edx;
+	__u32 padding[3];
+};
+
+This ioctl returns x86 cpuid features which are emulated by
+kvm.Userspace can use the information returned by this ioctl to query
+which features are emulated by kvm instead of being present natively.
+
+Userspace invokes KVM_GET_EMULATED_CPUID by passing a kvm_cpuid2
+structure with the 'nent' field indicating the number of entries in
+the variable-size array 'entries'. If the number of entries is too low
+to describe the cpu capabilities, an error (E2BIG) is returned. If the
+number is too high, the 'nent' field is adjusted and an error (ENOMEM)
+is returned. If the number is just right, the 'nent' field is adjusted
+to the number of valid entries in the 'entries' array, which is then
+filled.
+
+The entries returned are the set CPUID bits of the respective features
+which kvm emulates, as returned by the CPUID instruction, with unknown
+or unsupported feature bits cleared.
+
+Features like x2apic, for example, may not be present in the host cpu
+but are exposed by kvm in KVM_GET_SUPPORTED_CPUID because they can be
+emulated efficiently and thus not included here.
+
+The fields in each entry are defined as follows:
+
+  function: the eax value used to obtain the entry
+  index: the ecx value used to obtain the entry (for entries that are
+         affected by ecx)
+  flags: an OR of zero or more of the following:
+        KVM_CPUID_FLAG_SIGNIFCANT_INDEX:
+           if the index field is valid
+        KVM_CPUID_FLAG_STATEFUL_FUNC:
+           if cpuid for this function returns different values for successive
+           invocations; there will be several entries with the same function,
+           all with this flag set
+        KVM_CPUID_FLAG_STATE_READ_NEXT:
+           for KVM_CPUID_FLAG_STATEFUL_FUNC entries, set if this entry is
+           the first entry to be read by a cpu
+   eax, ebx, ecx, edx: the values returned by the cpuid instruction for
+         this function/index combination
+
+
 6. Capabilities that can be enabled
 -----------------------------------
 
diff --git a/arch/x86/include/uapi/asm/kvm.h b/arch/x86/include/uapi/asm/kvm.h
index 5d9a3033b3d7..d3a87780c70b 100644
--- a/arch/x86/include/uapi/asm/kvm.h
+++ b/arch/x86/include/uapi/asm/kvm.h
@@ -211,9 +211,9 @@ struct kvm_cpuid_entry2 {
 	__u32 padding[3];
 };
 
-#define KVM_CPUID_FLAG_SIGNIFCANT_INDEX 1
-#define KVM_CPUID_FLAG_STATEFUL_FUNC    2
-#define KVM_CPUID_FLAG_STATE_READ_NEXT  4
+#define KVM_CPUID_FLAG_SIGNIFCANT_INDEX		BIT(0)
+#define KVM_CPUID_FLAG_STATEFUL_FUNC		BIT(1)
+#define KVM_CPUID_FLAG_STATE_READ_NEXT		BIT(2)
 
 /* for KVM_SET_CPUID2 */
 struct kvm_cpuid2 {
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 0a1e3b8b964d..78a4439bfdc5 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -219,8 +219,14 @@ static bool supported_xcr0_bit(unsigned bit)
 
 #define F(x) bit(X86_FEATURE_##x)
 
-static int do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
-			 u32 index, int *nent, int maxnent)
+static int __do_cpuid_ent_emulated(struct kvm_cpuid_entry2 *entry,
+				   u32 func, u32 index, int *nent, int maxnent)
+{
+	return 0;
+}
+
+static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
+				 u32 index, int *nent, int maxnent)
 {
 	int r;
 	unsigned f_nx = is_efer_nx() ? F(NX) : 0;
@@ -515,6 +521,15 @@ out:
 	return r;
 }
 
+static int do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 func,
+			u32 idx, int *nent, int maxnent, unsigned int type)
+{
+	if (type == KVM_GET_EMULATED_CPUID)
+		return __do_cpuid_ent_emulated(entry, func, idx, nent, maxnent);
+
+	return __do_cpuid_ent(entry, func, idx, nent, maxnent);
+}
+
 #undef F
 
 struct kvm_cpuid_param {
@@ -529,8 +544,34 @@ static bool is_centaur_cpu(const struct kvm_cpuid_param *param)
 	return boot_cpu_data.x86_vendor == X86_VENDOR_CENTAUR;
 }
 
-int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
-				      struct kvm_cpuid_entry2 __user *entries)
+static bool sanity_check_entries(struct kvm_cpuid_entry2 __user *entries,
+				 __u32 num_entries, unsigned int ioctl_type)
+{
+	int i;
+
+	if (ioctl_type != KVM_GET_EMULATED_CPUID)
+		return false;
+
+	/*
+	 * We want to make sure that ->padding is being passed clean from
+	 * userspace in case we want to use it for something in the future.
+	 *
+	 * Sadly, this wasn't enforced for KVM_GET_SUPPORTED_CPUID and so we
+	 * have to give ourselves satisfied only with the emulated side. /me
+	 * sheds a tear.
+	 */
+	for (i = 0; i < num_entries; i++) {
+		if (entries[i].padding[0] ||
+		    entries[i].padding[1] ||
+		    entries[i].padding[2])
+			return true;
+	}
+	return false;
+}
+
+int kvm_dev_ioctl_get_cpuid(struct kvm_cpuid2 *cpuid,
+			    struct kvm_cpuid_entry2 __user *entries,
+			    unsigned int type)
 {
 	struct kvm_cpuid_entry2 *cpuid_entries;
 	int limit, nent = 0, r = -E2BIG, i;
@@ -547,6 +588,10 @@ int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
 		goto out;
 	if (cpuid->nent > KVM_MAX_CPUID_ENTRIES)
 		cpuid->nent = KVM_MAX_CPUID_ENTRIES;
+
+	if (sanity_check_entries(entries, cpuid->nent, type))
+		return -EINVAL;
+
 	r = -ENOMEM;
 	cpuid_entries = vmalloc(sizeof(struct kvm_cpuid_entry2) * cpuid->nent);
 	if (!cpuid_entries)
@@ -560,7 +605,7 @@ int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
 			continue;
 
 		r = do_cpuid_ent(&cpuid_entries[nent], ent->func, ent->idx,
-				&nent, cpuid->nent);
+				&nent, cpuid->nent, type);
 
 		if (r)
 			goto out_free;
@@ -571,7 +616,7 @@ int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
 		limit = cpuid_entries[nent - 1].eax;
 		for (func = ent->func + 1; func <= limit && nent < cpuid->nent && r == 0; ++func)
 			r = do_cpuid_ent(&cpuid_entries[nent], func, ent->idx,
-				     &nent, cpuid->nent);
+				     &nent, cpuid->nent, type);
 
 		if (r)
 			goto out_free;
diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
index b7fd07984888..f1e4895174b2 100644
--- a/arch/x86/kvm/cpuid.h
+++ b/arch/x86/kvm/cpuid.h
@@ -6,8 +6,9 @@
 void kvm_update_cpuid(struct kvm_vcpu *vcpu);
 struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu,
 					      u32 function, u32 index);
-int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
-				      struct kvm_cpuid_entry2 __user *entries);
+int kvm_dev_ioctl_get_cpuid(struct kvm_cpuid2 *cpuid,
+			    struct kvm_cpuid_entry2 __user *entries,
+			    unsigned int type);
 int kvm_vcpu_ioctl_set_cpuid(struct kvm_vcpu *vcpu,
 			     struct kvm_cpuid *cpuid,
 			     struct kvm_cpuid_entry __user *entries);
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index edf2a07df3a3..3d1e3ee8b39e 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2564,6 +2564,7 @@ int kvm_dev_ioctl_check_extension(long ext)
 	case KVM_CAP_MMU_SHADOW_CACHE_CONTROL:
 	case KVM_CAP_SET_TSS_ADDR:
 	case KVM_CAP_EXT_CPUID:
+	case KVM_CAP_EXT_EMUL_CPUID:
 	case KVM_CAP_CLOCKSOURCE:
 	case KVM_CAP_PIT:
 	case KVM_CAP_NOP_IO_DELAY:
@@ -2673,15 +2674,17 @@ long kvm_arch_dev_ioctl(struct file *filp,
 		r = 0;
 		break;
 	}
-	case KVM_GET_SUPPORTED_CPUID: {
+	case KVM_GET_SUPPORTED_CPUID:
+	case KVM_GET_EMULATED_CPUID: {
 		struct kvm_cpuid2 __user *cpuid_arg = argp;
 		struct kvm_cpuid2 cpuid;
 
 		r = -EFAULT;
 		if (copy_from_user(&cpuid, cpuid_arg, sizeof cpuid))
 			goto out;
-		r = kvm_dev_ioctl_get_supported_cpuid(&cpuid,
-						      cpuid_arg->entries);
+
+		r = kvm_dev_ioctl_get_cpuid(&cpuid, cpuid_arg->entries,
+					    ioctl);
 		if (r)
 			goto out;
 
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index e32e776f20c0..32c60b98ddf8 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -541,6 +541,7 @@ struct kvm_ppc_smmu_info {
 #define KVM_TRACE_ENABLE          __KVM_DEPRECATED_MAIN_W_0x06
 #define KVM_TRACE_PAUSE           __KVM_DEPRECATED_MAIN_0x07
 #define KVM_TRACE_DISABLE         __KVM_DEPRECATED_MAIN_0x08
+#define KVM_GET_EMULATED_CPUID	  _IOWR(KVMIO, 0x09, struct kvm_cpuid2)
 
 /*
  * Extension capability list.
@@ -668,6 +669,7 @@ struct kvm_ppc_smmu_info {
 #define KVM_CAP_IRQ_XICS 92
 #define KVM_CAP_ARM_EL1_32BIT 93
 #define KVM_CAP_SPAPR_MULTITCE 94
+#define KVM_CAP_EXT_EMUL_CPUID 95
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
-- 
cgit 


From 1ce19dc16ce9136cccb6087e4a383ec9321980d9 Mon Sep 17 00:00:00 2001
From: Borislav Petkov <bp@suse.de>
Date: Sun, 22 Sep 2013 16:44:51 +0200
Subject: kvm, emulator: Use opcode length

Add a field to the current emulation context which contains the
instruction opcode length. This will streamline handling of opcodes of
different length.

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/include/asm/kvm_emulate.h | 8 ++++++--
 arch/x86/kvm/emulate.c             | 5 +++--
 arch/x86/kvm/x86.c                 | 4 ++--
 3 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index 15f960c06ff7..92a176ad456c 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -279,8 +279,12 @@ struct x86_emulate_ctxt {
 	bool have_exception;
 	struct x86_exception exception;
 
-	/* decode cache */
-	u8 twobyte;
+	/*
+	 * decode cache
+	 */
+
+	/* current opcode length in bytes */
+	u8 opcode_len;
 	u8 b;
 	u8 intercept;
 	u8 lock_prefix;
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index ddc3f3d2afdb..d554d96afbca 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -4126,6 +4126,7 @@ int x86_decode_insn(struct x86_emulate_ctxt *ctxt, void *insn, int insn_len)
 	ctxt->_eip = ctxt->eip;
 	ctxt->fetch.start = ctxt->_eip;
 	ctxt->fetch.end = ctxt->fetch.start + insn_len;
+	ctxt->opcode_len = 1;
 	if (insn_len > 0)
 		memcpy(ctxt->fetch.data, insn, insn_len);
 
@@ -4208,7 +4209,7 @@ done_prefixes:
 	opcode = opcode_table[ctxt->b];
 	/* Two-byte opcode? */
 	if (ctxt->b == 0x0f) {
-		ctxt->twobyte = 1;
+		ctxt->opcode_len = 2;
 		ctxt->b = insn_fetch(u8, ctxt);
 		opcode = twobyte_table[ctxt->b];
 	}
@@ -4540,7 +4541,7 @@ special_insn:
 		goto writeback;
 	}
 
-	if (ctxt->twobyte)
+	if (ctxt->opcode_len == 2)
 		goto twobyte_insn;
 
 	switch (ctxt->b) {
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 3d1e3ee8b39e..d00d88455fef 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -4789,8 +4789,8 @@ static void inject_emulated_exception(struct kvm_vcpu *vcpu)
 
 static void init_decode_cache(struct x86_emulate_ctxt *ctxt)
 {
-	memset(&ctxt->twobyte, 0,
-	       (void *)&ctxt->_regs - (void *)&ctxt->twobyte);
+	memset(&ctxt->opcode_len, 0,
+	       (void *)&ctxt->_regs - (void *)&ctxt->opcode_len);
 
 	ctxt->fetch.start = 0;
 	ctxt->fetch.end = 0;
-- 
cgit 


From b51e974fcdabd00c8f5943ee7943c4ea788f57b6 Mon Sep 17 00:00:00 2001
From: Borislav Petkov <bp@suse.de>
Date: Sun, 22 Sep 2013 16:44:52 +0200
Subject: kvm, emulator: Rename VendorSpecific flag

Call it EmulateOnUD which is exactly what we're trying to do with
vendor-specific instructions.

Rename ->only_vendor_specific_insn to something shorter, while at it.

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/include/asm/kvm_emulate.h |  2 +-
 arch/x86/kvm/emulate.c             | 14 +++++++-------
 arch/x86/kvm/x86.c                 |  3 +--
 3 files changed, 9 insertions(+), 10 deletions(-)

diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index 92a176ad456c..24ec1216596e 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -274,7 +274,7 @@ struct x86_emulate_ctxt {
 
 	bool guest_mode; /* guest running a nested guest */
 	bool perm_ok; /* do not check permissions if true */
-	bool only_vendor_specific_insn;
+	bool ud;	/* inject an #UD if host doesn't support insn */
 
 	bool have_exception;
 	struct x86_exception exception;
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index d554d96afbca..541801527225 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -130,7 +130,7 @@
 #define Mov         (1<<20)
 /* Misc flags */
 #define Prot        (1<<21) /* instruction generates #UD if not in prot-mode */
-#define VendorSpecific (1<<22) /* Vendor specific instruction */
+#define EmulateOnUD (1<<22) /* Emulate if unsupported by the host */
 #define NoAccess    (1<<23) /* Don't access memory (lea/invlpg/verr etc) */
 #define Op3264      (1<<24) /* Operand is 64b in long mode, 32b otherwise */
 #define Undefined   (1<<25) /* No Such Instruction */
@@ -3502,7 +3502,7 @@ static const struct opcode group7_rm1[] = {
 
 static const struct opcode group7_rm3[] = {
 	DIP(SrcNone | Prot | Priv,		vmrun,		check_svme_pa),
-	II(SrcNone  | Prot | VendorSpecific,	em_vmmcall,	vmmcall),
+	II(SrcNone  | Prot | EmulateOnUD,	em_vmmcall,	vmmcall),
 	DIP(SrcNone | Prot | Priv,		vmload,		check_svme_pa),
 	DIP(SrcNone | Prot | Priv,		vmsave,		check_svme_pa),
 	DIP(SrcNone | Prot | Priv,		stgi,		check_svme),
@@ -3587,7 +3587,7 @@ static const struct group_dual group7 = { {
 	II(SrcMem16 | Mov | Priv,		em_lmsw, lmsw),
 	II(SrcMem | ByteOp | Priv | NoAccess,	em_invlpg, invlpg),
 }, {
-	I(SrcNone | Priv | VendorSpecific,	em_vmcall),
+	I(SrcNone | Priv | EmulateOnUD,	em_vmcall),
 	EXT(0, group7_rm1),
 	N, EXT(0, group7_rm3),
 	II(SrcNone | DstMem | Mov,		em_smsw, smsw), N,
@@ -3810,7 +3810,7 @@ static const struct opcode opcode_table[256] = {
 static const struct opcode twobyte_table[256] = {
 	/* 0x00 - 0x0F */
 	G(0, group6), GD(0, &group7), N, N,
-	N, I(ImplicitOps | VendorSpecific, em_syscall),
+	N, I(ImplicitOps | EmulateOnUD, em_syscall),
 	II(ImplicitOps | Priv, em_clts, clts), N,
 	DI(ImplicitOps | Priv, invd), DI(ImplicitOps | Priv, wbinvd), N, N,
 	N, D(ImplicitOps | ModRM), N, N,
@@ -3830,8 +3830,8 @@ static const struct opcode twobyte_table[256] = {
 	IIP(ImplicitOps, em_rdtsc, rdtsc, check_rdtsc),
 	II(ImplicitOps | Priv, em_rdmsr, rdmsr),
 	IIP(ImplicitOps, em_rdpmc, rdpmc, check_rdpmc),
-	I(ImplicitOps | VendorSpecific, em_sysenter),
-	I(ImplicitOps | Priv | VendorSpecific, em_sysexit),
+	I(ImplicitOps | EmulateOnUD, em_sysenter),
+	I(ImplicitOps | Priv | EmulateOnUD, em_sysexit),
 	N, N,
 	N, N, N, N, N, N, N, N,
 	/* 0x40 - 0x4F */
@@ -4268,7 +4268,7 @@ done_prefixes:
 	if (ctxt->d == 0 || (ctxt->d & NotImpl))
 		return EMULATION_FAILED;
 
-	if (!(ctxt->d & VendorSpecific) && ctxt->only_vendor_specific_insn)
+	if (!(ctxt->d & EmulateOnUD) && ctxt->ud)
 		return EMULATION_FAILED;
 
 	if (mode == X86EMUL_MODE_PROT64 && (ctxt->d & Stack))
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index d00d88455fef..15f9540a2b1f 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5108,8 +5108,7 @@ int x86_emulate_instruction(struct kvm_vcpu *vcpu,
 		ctxt->have_exception = false;
 		ctxt->perm_ok = false;
 
-		ctxt->only_vendor_specific_insn
-			= emulation_type & EMULTYPE_TRAP_UD;
+		ctxt->ud = emulation_type & EMULTYPE_TRAP_UD;
 
 		r = x86_decode_insn(ctxt, insn, insn_len);
 
-- 
cgit 


From 0bc5eedb82a54ccd9cbf79825226dd068427a94a Mon Sep 17 00:00:00 2001
From: Borislav Petkov <bp@suse.de>
Date: Tue, 29 Oct 2013 12:54:10 +0100
Subject: kvm, emulator: Add initial three-byte insns support

Add initial support for handling three-byte instructions in the
emulator.

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/emulate.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 541801527225..6c5cfe962b28 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -3892,6 +3892,25 @@ static const struct opcode twobyte_table[256] = {
 	N, N, N, N, N, N, N, N, N, N, N, N, N, N, N, N
 };
 
+static const struct gprefix three_byte_0f_38_f0 = {
+	N, N, N, N
+};
+
+static const struct gprefix three_byte_0f_38_f1 = {
+	N, N, N, N
+};
+
+/*
+ * Insns below are selected by the prefix which indexed by the third opcode
+ * byte.
+ */
+static const struct opcode opcode_map_0f_38[256] = {
+	/* 0x00 - 0x7f */
+	X16(N), X16(N), X16(N), X16(N), X16(N), X16(N), X16(N), X16(N),
+	/* 0x80 - 0xff */
+	X16(N), X16(N), X16(N), X16(N), X16(N), X16(N), X16(N), X16(N)
+};
+
 #undef D
 #undef N
 #undef G
@@ -4212,6 +4231,13 @@ done_prefixes:
 		ctxt->opcode_len = 2;
 		ctxt->b = insn_fetch(u8, ctxt);
 		opcode = twobyte_table[ctxt->b];
+
+		/* 0F_38 opcode map */
+		if (ctxt->b == 0x38) {
+			ctxt->opcode_len = 3;
+			ctxt->b = insn_fetch(u8, ctxt);
+			opcode = opcode_map_0f_38[ctxt->b];
+		}
 	}
 	ctxt->d = opcode.flags;
 
@@ -4543,6 +4569,8 @@ special_insn:
 
 	if (ctxt->opcode_len == 2)
 		goto twobyte_insn;
+	else if (ctxt->opcode_len == 3)
+		goto threebyte_insn;
 
 	switch (ctxt->b) {
 	case 0x63:		/* movsxd */
@@ -4727,6 +4755,8 @@ twobyte_insn:
 		goto cannot_emulate;
 	}
 
+threebyte_insn:
+
 	if (rc != X86EMUL_CONTINUE)
 		goto done;
 
-- 
cgit 


From 84cffe499b9418d6c3b4de2ad9599cc2ec50c607 Mon Sep 17 00:00:00 2001
From: Borislav Petkov <bp@suse.de>
Date: Tue, 29 Oct 2013 12:54:56 +0100
Subject: kvm: Emulate MOVBE

This basically came from the need to be able to boot 32-bit Atom SMP
guests on an AMD host, i.e. a host which doesn't support MOVBE. As a
matter of fact, qemu has since recently received MOVBE support but we
cannot share that with kvm emulation and thus we have to do this in the
host. We're waay faster in kvm anyway. :-)

So, we piggyback on the #UD path and emulate the MOVBE functionality.
With it, an 8-core SMP guest boots in under 6 seconds.

Also, requesting MOVBE emulation needs to happen explicitly to work,
i.e. qemu -cpu n270,+movbe...

Just FYI, a fairly straight-forward boot of a MOVBE-enabled 3.9-rc6+
kernel in kvm executes MOVBE ~60K times.

Signed-off-by: Andre Przywara <andre@andrep.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/cpuid.c   | 18 ++++++++++++++++-
 arch/x86/kvm/emulate.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++----
 2 files changed, 66 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 78a4439bfdc5..86d5756dda07 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -222,6 +222,22 @@ static bool supported_xcr0_bit(unsigned bit)
 static int __do_cpuid_ent_emulated(struct kvm_cpuid_entry2 *entry,
 				   u32 func, u32 index, int *nent, int maxnent)
 {
+	switch (func) {
+	case 0:
+		entry->eax = 1;		/* only one leaf currently */
+		++*nent;
+		break;
+	case 1:
+		entry->ecx = F(MOVBE);
+		++*nent;
+		break;
+	default:
+		break;
+	}
+
+	entry->function = func;
+	entry->index = index;
+
 	return 0;
 }
 
@@ -593,7 +609,7 @@ int kvm_dev_ioctl_get_cpuid(struct kvm_cpuid2 *cpuid,
 		return -EINVAL;
 
 	r = -ENOMEM;
-	cpuid_entries = vmalloc(sizeof(struct kvm_cpuid_entry2) * cpuid->nent);
+	cpuid_entries = vzalloc(sizeof(struct kvm_cpuid_entry2) * cpuid->nent);
 	if (!cpuid_entries)
 		goto out;
 
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 6c5cfe962b28..8e2a07bd8eac 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -2961,6 +2961,46 @@ static int em_mov(struct x86_emulate_ctxt *ctxt)
 	return X86EMUL_CONTINUE;
 }
 
+#define FFL(x) bit(X86_FEATURE_##x)
+
+static int em_movbe(struct x86_emulate_ctxt *ctxt)
+{
+	u32 ebx, ecx, edx, eax = 1;
+	u16 tmp;
+
+	/*
+	 * Check MOVBE is set in the guest-visible CPUID leaf.
+	 */
+	ctxt->ops->get_cpuid(ctxt, &eax, &ebx, &ecx, &edx);
+	if (!(ecx & FFL(MOVBE)))
+		return emulate_ud(ctxt);
+
+	switch (ctxt->op_bytes) {
+	case 2:
+		/*
+		 * From MOVBE definition: "...When the operand size is 16 bits,
+		 * the upper word of the destination register remains unchanged
+		 * ..."
+		 *
+		 * Both casting ->valptr and ->val to u16 breaks strict aliasing
+		 * rules so we have to do the operation almost per hand.
+		 */
+		tmp = (u16)ctxt->src.val;
+		ctxt->dst.val &= ~0xffffUL;
+		ctxt->dst.val |= (unsigned long)swab16(tmp);
+		break;
+	case 4:
+		ctxt->dst.val = swab32((u32)ctxt->src.val);
+		break;
+	case 8:
+		ctxt->dst.val = swab64(ctxt->src.val);
+		break;
+	default:
+		return X86EMUL_PROPAGATE_FAULT;
+	}
+	return X86EMUL_CONTINUE;
+}
+
 static int em_cr_write(struct x86_emulate_ctxt *ctxt)
 {
 	if (ctxt->ops->set_cr(ctxt, ctxt->modrm_reg, ctxt->src.val))
@@ -3893,11 +3933,11 @@ static const struct opcode twobyte_table[256] = {
 };
 
 static const struct gprefix three_byte_0f_38_f0 = {
-	N, N, N, N
+	I(DstReg | SrcMem | Mov, em_movbe), N, N, N
 };
 
 static const struct gprefix three_byte_0f_38_f1 = {
-	N, N, N, N
+	I(DstMem | SrcReg | Mov, em_movbe), N, N, N
 };
 
 /*
@@ -3907,8 +3947,13 @@ static const struct gprefix three_byte_0f_38_f1 = {
 static const struct opcode opcode_map_0f_38[256] = {
 	/* 0x00 - 0x7f */
 	X16(N), X16(N), X16(N), X16(N), X16(N), X16(N), X16(N), X16(N),
-	/* 0x80 - 0xff */
-	X16(N), X16(N), X16(N), X16(N), X16(N), X16(N), X16(N), X16(N)
+	/* 0x80 - 0xef */
+	X16(N), X16(N), X16(N), X16(N), X16(N), X16(N), X16(N),
+	/* 0xf0 - 0xf1 */
+	GP(EmulateOnUD | ModRM | Prefix, &three_byte_0f_38_f0),
+	GP(EmulateOnUD | ModRM | Prefix, &three_byte_0f_38_f1),
+	/* 0xf2 - 0xff */
+	N, N, X4(N), X8(N)
 };
 
 #undef D
-- 
cgit 


From 248f0e7f5f0012fb9c1954e582196aa7f32a0c81 Mon Sep 17 00:00:00 2001
From: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Date: Wed, 30 Oct 2013 13:47:16 +0000
Subject: ARM64: simplify cpu_read_bootcpu_ops using OF/DT helper

Once the cpu_logical_map for any logical cpu is populated with the
corresponding physical identifier(i.e. mpidr), it's device node can
be retrieved using the DT helper 'of_get_cpu_node'. Currently the
device tree parsing code to get boot cpu node is duplicated in
'cpu_read_bootcpu_ops'.

This patch replaces the code parsing the device tree for the boot
cpu with of_get_cpu_node.

Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kernel/cpu_ops.c | 22 +++++-----------------
 1 file changed, 5 insertions(+), 17 deletions(-)

diff --git a/arch/arm64/kernel/cpu_ops.c b/arch/arm64/kernel/cpu_ops.c
index aa0c9e78dbe1..e2ba274612cf 100644
--- a/arch/arm64/kernel/cpu_ops.c
+++ b/arch/arm64/kernel/cpu_ops.c
@@ -78,22 +78,10 @@ int __init cpu_read_ops(struct device_node *dn, int cpu)
 
 void __init cpu_read_bootcpu_ops(void)
 {
-	struct device_node *dn = NULL;
-	u64 mpidr = cpu_logical_map(0);
-
-	while ((dn = of_find_node_by_type(dn, "cpu"))) {
-		u64 hwid;
-		const __be32 *prop;
-
-		prop = of_get_property(dn, "reg", NULL);
-		if (!prop)
-			continue;
-
-		hwid = of_read_number(prop, of_n_addr_cells(dn));
-		if (hwid == mpidr) {
-			cpu_read_ops(dn, 0);
-			of_node_put(dn);
-			return;
-		}
+	struct device_node *dn = of_get_cpu_node(0, NULL);
+	if (!dn) {
+		pr_err("Failed to find device node for boot cpu\n");
+		return;
 	}
+	cpu_read_ops(dn, 0);
 }
-- 
cgit 


From ec53500fae421e07c5d035918ca454a429732ef4 Mon Sep 17 00:00:00 2001
From: Alex Williamson <alex.williamson@redhat.com>
Date: Wed, 30 Oct 2013 11:02:17 -0600
Subject: kvm: Add VFIO device

So far we've succeeded at making KVM and VFIO mostly unaware of each
other, but areas are cropping up where a connection beyond eventfds
and irqfds needs to be made.  This patch introduces a KVM-VFIO device
that is meant to be a gateway for such interaction.  The user creates
the device and can add and remove VFIO groups to it via file
descriptors.  When a group is added, KVM verifies the group is valid
and gets a reference to it via the VFIO external user interface.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 Documentation/virtual/kvm/devices/vfio.txt |  22 +++
 arch/x86/kvm/Kconfig                       |   1 +
 arch/x86/kvm/Makefile                      |   2 +-
 include/linux/kvm_host.h                   |   1 +
 include/uapi/linux/kvm.h                   |   4 +
 virt/kvm/Kconfig                           |   3 +
 virt/kvm/kvm_main.c                        |   5 +
 virt/kvm/vfio.c                            | 220 +++++++++++++++++++++++++++++
 8 files changed, 257 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/virtual/kvm/devices/vfio.txt
 create mode 100644 virt/kvm/vfio.c

diff --git a/Documentation/virtual/kvm/devices/vfio.txt b/Documentation/virtual/kvm/devices/vfio.txt
new file mode 100644
index 000000000000..ef51740c67ca
--- /dev/null
+++ b/Documentation/virtual/kvm/devices/vfio.txt
@@ -0,0 +1,22 @@
+VFIO virtual device
+===================
+
+Device types supported:
+  KVM_DEV_TYPE_VFIO
+
+Only one VFIO instance may be created per VM.  The created device
+tracks VFIO groups in use by the VM and features of those groups
+important to the correctness and acceleration of the VM.  As groups
+are enabled and disabled for use by the VM, KVM should be updated
+about their presence.  When registered with KVM, a reference to the
+VFIO-group is held by KVM.
+
+Groups:
+  KVM_DEV_VFIO_GROUP
+
+KVM_DEV_VFIO_GROUP attributes:
+  KVM_DEV_VFIO_GROUP_ADD: Add a VFIO group to VFIO-KVM device tracking
+  KVM_DEV_VFIO_GROUP_DEL: Remove a VFIO group from VFIO-KVM device tracking
+
+For each, kvm_device_attr.addr points to an int32_t file descriptor
+for the VFIO group.
diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
index a47a3e54b964..b89c5db2b832 100644
--- a/arch/x86/kvm/Kconfig
+++ b/arch/x86/kvm/Kconfig
@@ -38,6 +38,7 @@ config KVM
 	select PERF_EVENTS
 	select HAVE_KVM_MSI
 	select HAVE_KVM_CPU_RELAX_INTERCEPT
+	select KVM_VFIO
 	---help---
 	  Support hosting fully virtualized guest machines using hardware
 	  virtualization extensions.  You will need a fairly recent
diff --git a/arch/x86/kvm/Makefile b/arch/x86/kvm/Makefile
index bf4fb04d0112..25d22b2d6509 100644
--- a/arch/x86/kvm/Makefile
+++ b/arch/x86/kvm/Makefile
@@ -9,7 +9,7 @@ KVM := ../../../virt/kvm
 
 kvm-y			+= $(KVM)/kvm_main.o $(KVM)/ioapic.o \
 				$(KVM)/coalesced_mmio.o $(KVM)/irq_comm.o \
-				$(KVM)/eventfd.o $(KVM)/irqchip.o
+				$(KVM)/eventfd.o $(KVM)/irqchip.o $(KVM)/vfio.o
 kvm-$(CONFIG_KVM_DEVICE_ASSIGNMENT)	+= $(KVM)/assigned-dev.o $(KVM)/iommu.o
 kvm-$(CONFIG_KVM_ASYNC_PF)	+= $(KVM)/async_pf.o
 
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index c9d4236ab442..7beddbd38ac7 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -1058,6 +1058,7 @@ struct kvm_device *kvm_device_from_filp(struct file *filp);
 
 extern struct kvm_device_ops kvm_mpic_ops;
 extern struct kvm_device_ops kvm_xics_ops;
+extern struct kvm_device_ops kvm_vfio_ops;
 
 #ifdef CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT
 
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h
index 32c60b98ddf8..509cfbfe9658 100644
--- a/include/uapi/linux/kvm.h
+++ b/include/uapi/linux/kvm.h
@@ -845,6 +845,10 @@ struct kvm_device_attr {
 #define KVM_DEV_TYPE_FSL_MPIC_20	1
 #define KVM_DEV_TYPE_FSL_MPIC_42	2
 #define KVM_DEV_TYPE_XICS		3
+#define KVM_DEV_TYPE_VFIO		4
+#define  KVM_DEV_VFIO_GROUP			1
+#define   KVM_DEV_VFIO_GROUP_ADD			1
+#define   KVM_DEV_VFIO_GROUP_DEL			2
 
 /*
  * ioctls for VM fds
diff --git a/virt/kvm/Kconfig b/virt/kvm/Kconfig
index 779262f59e25..fbe1a48bd629 100644
--- a/virt/kvm/Kconfig
+++ b/virt/kvm/Kconfig
@@ -27,3 +27,6 @@ config HAVE_KVM_MSI
 
 config HAVE_KVM_CPU_RELAX_INTERCEPT
        bool
+
+config KVM_VFIO
+       bool
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 9ca014da134d..82c4047aa0e3 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2270,6 +2270,11 @@ static int kvm_ioctl_create_device(struct kvm *kvm,
 	case KVM_DEV_TYPE_XICS:
 		ops = &kvm_xics_ops;
 		break;
+#endif
+#ifdef CONFIG_KVM_VFIO
+	case KVM_DEV_TYPE_VFIO:
+		ops = &kvm_vfio_ops;
+		break;
 #endif
 	default:
 		return -ENODEV;
diff --git a/virt/kvm/vfio.c b/virt/kvm/vfio.c
new file mode 100644
index 000000000000..597c258245ea
--- /dev/null
+++ b/virt/kvm/vfio.c
@@ -0,0 +1,220 @@
+/*
+ * VFIO-KVM bridge pseudo device
+ *
+ * Copyright (C) 2013 Red Hat, Inc.  All rights reserved.
+ *     Author: Alex Williamson <alex.williamson@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/errno.h>
+#include <linux/file.h>
+#include <linux/kvm_host.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/uaccess.h>
+#include <linux/vfio.h>
+
+struct kvm_vfio_group {
+	struct list_head node;
+	struct vfio_group *vfio_group;
+};
+
+struct kvm_vfio {
+	struct list_head group_list;
+	struct mutex lock;
+};
+
+static struct vfio_group *kvm_vfio_group_get_external_user(struct file *filep)
+{
+	struct vfio_group *vfio_group;
+	struct vfio_group *(*fn)(struct file *);
+
+	fn = symbol_get(vfio_group_get_external_user);
+	if (!fn)
+		return ERR_PTR(-EINVAL);
+
+	vfio_group = fn(filep);
+
+	symbol_put(vfio_group_get_external_user);
+
+	return vfio_group;
+}
+
+static void kvm_vfio_group_put_external_user(struct vfio_group *vfio_group)
+{
+	void (*fn)(struct vfio_group *);
+
+	fn = symbol_get(vfio_group_put_external_user);
+	if (!fn)
+		return;
+
+	fn(vfio_group);
+
+	symbol_put(vfio_group_put_external_user);
+}
+
+static int kvm_vfio_set_group(struct kvm_device *dev, long attr, u64 arg)
+{
+	struct kvm_vfio *kv = dev->private;
+	struct vfio_group *vfio_group;
+	struct kvm_vfio_group *kvg;
+	void __user *argp = (void __user *)arg;
+	struct fd f;
+	int32_t fd;
+	int ret;
+
+	switch (attr) {
+	case KVM_DEV_VFIO_GROUP_ADD:
+		if (get_user(fd, (int32_t __user *)argp))
+			return -EFAULT;
+
+		f = fdget(fd);
+		if (!f.file)
+			return -EBADF;
+
+		vfio_group = kvm_vfio_group_get_external_user(f.file);
+		fdput(f);
+
+		if (IS_ERR(vfio_group))
+			return PTR_ERR(vfio_group);
+
+		mutex_lock(&kv->lock);
+
+		list_for_each_entry(kvg, &kv->group_list, node) {
+			if (kvg->vfio_group == vfio_group) {
+				mutex_unlock(&kv->lock);
+				kvm_vfio_group_put_external_user(vfio_group);
+				return -EEXIST;
+			}
+		}
+
+		kvg = kzalloc(sizeof(*kvg), GFP_KERNEL);
+		if (!kvg) {
+			mutex_unlock(&kv->lock);
+			kvm_vfio_group_put_external_user(vfio_group);
+			return -ENOMEM;
+		}
+
+		list_add_tail(&kvg->node, &kv->group_list);
+		kvg->vfio_group = vfio_group;
+
+		mutex_unlock(&kv->lock);
+
+		return 0;
+
+	case KVM_DEV_VFIO_GROUP_DEL:
+		if (get_user(fd, (int32_t __user *)argp))
+			return -EFAULT;
+
+		f = fdget(fd);
+		if (!f.file)
+			return -EBADF;
+
+		vfio_group = kvm_vfio_group_get_external_user(f.file);
+		fdput(f);
+
+		if (IS_ERR(vfio_group))
+			return PTR_ERR(vfio_group);
+
+		ret = -ENOENT;
+
+		mutex_lock(&kv->lock);
+
+		list_for_each_entry(kvg, &kv->group_list, node) {
+			if (kvg->vfio_group != vfio_group)
+				continue;
+
+			list_del(&kvg->node);
+			kvm_vfio_group_put_external_user(kvg->vfio_group);
+			kfree(kvg);
+			ret = 0;
+			break;
+		}
+
+		mutex_unlock(&kv->lock);
+
+		kvm_vfio_group_put_external_user(vfio_group);
+
+		return ret;
+	}
+
+	return -ENXIO;
+}
+
+static int kvm_vfio_set_attr(struct kvm_device *dev,
+			     struct kvm_device_attr *attr)
+{
+	switch (attr->group) {
+	case KVM_DEV_VFIO_GROUP:
+		return kvm_vfio_set_group(dev, attr->attr, attr->addr);
+	}
+
+	return -ENXIO;
+}
+
+static int kvm_vfio_has_attr(struct kvm_device *dev,
+			     struct kvm_device_attr *attr)
+{
+	switch (attr->group) {
+	case KVM_DEV_VFIO_GROUP:
+		switch (attr->attr) {
+		case KVM_DEV_VFIO_GROUP_ADD:
+		case KVM_DEV_VFIO_GROUP_DEL:
+			return 0;
+		}
+
+		break;
+	}
+
+	return -ENXIO;
+}
+
+static void kvm_vfio_destroy(struct kvm_device *dev)
+{
+	struct kvm_vfio *kv = dev->private;
+	struct kvm_vfio_group *kvg, *tmp;
+
+	list_for_each_entry_safe(kvg, tmp, &kv->group_list, node) {
+		kvm_vfio_group_put_external_user(kvg->vfio_group);
+		list_del(&kvg->node);
+		kfree(kvg);
+	}
+
+	kfree(kv);
+	kfree(dev); /* alloc by kvm_ioctl_create_device, free by .destroy */
+}
+
+static int kvm_vfio_create(struct kvm_device *dev, u32 type)
+{
+	struct kvm_device *tmp;
+	struct kvm_vfio *kv;
+
+	/* Only one VFIO "device" per VM */
+	list_for_each_entry(tmp, &dev->kvm->devices, vm_node)
+		if (tmp->ops == &kvm_vfio_ops)
+			return -EBUSY;
+
+	kv = kzalloc(sizeof(*kv), GFP_KERNEL);
+	if (!kv)
+		return -ENOMEM;
+
+	INIT_LIST_HEAD(&kv->group_list);
+	mutex_init(&kv->lock);
+
+	dev->private = kv;
+
+	return 0;
+}
+
+struct kvm_device_ops kvm_vfio_ops = {
+	.name = "kvm-vfio",
+	.create = kvm_vfio_create,
+	.destroy = kvm_vfio_destroy,
+	.set_attr = kvm_vfio_set_attr,
+	.has_attr = kvm_vfio_has_attr,
+};
-- 
cgit 


From d96eb2c6f480769bff32054e78b964860dae4d56 Mon Sep 17 00:00:00 2001
From: Alex Williamson <alex.williamson@redhat.com>
Date: Wed, 30 Oct 2013 11:02:23 -0600
Subject: kvm/x86: Convert iommu_flags to iommu_noncoherent

Default to operating in coherent mode.  This simplifies the logic when
we switch to a model of registering and unregistering noncoherent I/O
with KVM.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/ia64/include/asm/kvm_host.h |  2 +-
 arch/x86/include/asm/kvm_host.h  |  2 +-
 arch/x86/kvm/vmx.c               |  2 +-
 arch/x86/kvm/x86.c               |  2 +-
 include/linux/kvm_host.h         |  3 ---
 virt/kvm/iommu.c                 | 16 ++++++++--------
 6 files changed, 12 insertions(+), 15 deletions(-)

diff --git a/arch/ia64/include/asm/kvm_host.h b/arch/ia64/include/asm/kvm_host.h
index 95a3ff93777c..db95f570705f 100644
--- a/arch/ia64/include/asm/kvm_host.h
+++ b/arch/ia64/include/asm/kvm_host.h
@@ -476,7 +476,7 @@ struct kvm_arch {
 
 	struct list_head assigned_dev_head;
 	struct iommu_domain *iommu_domain;
-	int iommu_flags;
+	bool iommu_noncoherent;
 
 	unsigned long irq_sources_bitmap;
 	unsigned long irq_states[KVM_IOAPIC_NUM_PINS];
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 5cbf3166257c..91b35e4005d3 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -564,7 +564,7 @@ struct kvm_arch {
 
 	struct list_head assigned_dev_head;
 	struct iommu_domain *iommu_domain;
-	int iommu_flags;
+	bool iommu_noncoherent;
 	struct kvm_pic *vpic;
 	struct kvm_ioapic *vioapic;
 	struct kvm_pit *vpit;
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 6850b0f1d52b..727a5e980c43 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -7446,7 +7446,7 @@ static u64 vmx_get_mt_mask(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio)
 	if (is_mmio)
 		ret = MTRR_TYPE_UNCACHABLE << VMX_EPT_MT_EPTE_SHIFT;
 	else if (vcpu->kvm->arch.iommu_domain &&
-		!(vcpu->kvm->arch.iommu_flags & KVM_IOMMU_CACHE_COHERENCY))
+		 vcpu->kvm->arch.iommu_noncoherent)
 		ret = kvm_get_guest_memory_type(vcpu, gfn) <<
 		      VMX_EPT_MT_EPTE_SHIFT;
 	else
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 15f9540a2b1f..92ad83e5b132 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2719,7 +2719,7 @@ static void wbinvd_ipi(void *garbage)
 static bool need_emulate_wbinvd(struct kvm_vcpu *vcpu)
 {
 	return vcpu->kvm->arch.iommu_domain &&
-		!(vcpu->kvm->arch.iommu_flags & KVM_IOMMU_CACHE_COHERENCY);
+	       vcpu->kvm->arch.iommu_noncoherent;
 }
 
 void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 7beddbd38ac7..ed64880e4915 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -746,9 +746,6 @@ void kvm_unregister_irq_ack_notifier(struct kvm *kvm,
 int kvm_request_irq_source_id(struct kvm *kvm);
 void kvm_free_irq_source_id(struct kvm *kvm, int irq_source_id);
 
-/* For vcpu->arch.iommu_flags */
-#define KVM_IOMMU_CACHE_COHERENCY	0x1
-
 #ifdef CONFIG_KVM_DEVICE_ASSIGNMENT
 int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot);
 void kvm_iommu_unmap_pages(struct kvm *kvm, struct kvm_memory_slot *slot);
diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c
index a3b14109049b..d32d156a423a 100644
--- a/virt/kvm/iommu.c
+++ b/virt/kvm/iommu.c
@@ -79,7 +79,7 @@ int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot)
 	flags = IOMMU_READ;
 	if (!(slot->flags & KVM_MEM_READONLY))
 		flags |= IOMMU_WRITE;
-	if (kvm->arch.iommu_flags & KVM_IOMMU_CACHE_COHERENCY)
+	if (!kvm->arch.iommu_noncoherent)
 		flags |= IOMMU_CACHE;
 
 
@@ -158,7 +158,8 @@ int kvm_assign_device(struct kvm *kvm,
 {
 	struct pci_dev *pdev = NULL;
 	struct iommu_domain *domain = kvm->arch.iommu_domain;
-	int r, last_flags;
+	int r;
+	bool noncoherent;
 
 	/* check if iommu exists and in use */
 	if (!domain)
@@ -174,15 +175,13 @@ int kvm_assign_device(struct kvm *kvm,
 		return r;
 	}
 
-	last_flags = kvm->arch.iommu_flags;
-	if (iommu_domain_has_cap(kvm->arch.iommu_domain,
-				 IOMMU_CAP_CACHE_COHERENCY))
-		kvm->arch.iommu_flags |= KVM_IOMMU_CACHE_COHERENCY;
+	noncoherent = !iommu_domain_has_cap(kvm->arch.iommu_domain,
+					    IOMMU_CAP_CACHE_COHERENCY);
 
 	/* Check if need to update IOMMU page table for guest memory */
-	if ((last_flags ^ kvm->arch.iommu_flags) ==
-			KVM_IOMMU_CACHE_COHERENCY) {
+	if (noncoherent != kvm->arch.iommu_noncoherent) {
 		kvm_iommu_unmap_memslots(kvm);
+		kvm->arch.iommu_noncoherent = noncoherent;
 		r = kvm_iommu_map_memslots(kvm);
 		if (r)
 			goto out_unmap;
@@ -342,6 +341,7 @@ int kvm_iommu_unmap_guest(struct kvm *kvm)
 	mutex_lock(&kvm->slots_lock);
 	kvm_iommu_unmap_memslots(kvm);
 	kvm->arch.iommu_domain = NULL;
+	kvm->arch.iommu_noncoherent = false;
 	mutex_unlock(&kvm->slots_lock);
 
 	iommu_domain_free(domain);
-- 
cgit 


From e0f0bbc527f6e9c0261f1d16b2a0b47612b7f235 Mon Sep 17 00:00:00 2001
From: Alex Williamson <alex.williamson@redhat.com>
Date: Wed, 30 Oct 2013 11:02:30 -0600
Subject: kvm: Create non-coherent DMA registeration

We currently use some ad-hoc arch variables tied to legacy KVM device
assignment to manage emulation of instructions that depend on whether
non-coherent DMA is present.  Create an interface for this, adapting
legacy KVM device assignment and adding VFIO via the KVM-VFIO device.
For now we assume that non-coherent DMA is possible any time we have a
VFIO group.  Eventually an interface can be developed as part of the
VFIO external user interface to query the coherency of a group.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/include/asm/kvm_host.h |  2 ++
 arch/x86/kvm/vmx.c              |  3 +--
 arch/x86/kvm/x86.c              | 22 +++++++++++++++++++--
 include/linux/kvm_host.h        | 19 ++++++++++++++++++
 virt/kvm/iommu.c                |  6 ++++++
 virt/kvm/vfio.c                 | 44 +++++++++++++++++++++++++++++++++++++++++
 6 files changed, 92 insertions(+), 4 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 91b35e4005d3..de388c55e7ec 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -565,6 +565,8 @@ struct kvm_arch {
 	struct list_head assigned_dev_head;
 	struct iommu_domain *iommu_domain;
 	bool iommu_noncoherent;
+#define __KVM_HAVE_ARCH_NONCOHERENT_DMA
+	atomic_t noncoherent_dma_count;
 	struct kvm_pic *vpic;
 	struct kvm_ioapic *vioapic;
 	struct kvm_pit *vpit;
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 727a5e980c43..fabf7421ec18 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -7445,8 +7445,7 @@ static u64 vmx_get_mt_mask(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio)
 	 */
 	if (is_mmio)
 		ret = MTRR_TYPE_UNCACHABLE << VMX_EPT_MT_EPTE_SHIFT;
-	else if (vcpu->kvm->arch.iommu_domain &&
-		 vcpu->kvm->arch.iommu_noncoherent)
+	else if (kvm_arch_has_noncoherent_dma(vcpu->kvm))
 		ret = kvm_get_guest_memory_type(vcpu, gfn) <<
 		      VMX_EPT_MT_EPTE_SHIFT;
 	else
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 92ad83e5b132..ec35d09937da 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2718,8 +2718,7 @@ static void wbinvd_ipi(void *garbage)
 
 static bool need_emulate_wbinvd(struct kvm_vcpu *vcpu)
 {
-	return vcpu->kvm->arch.iommu_domain &&
-	       vcpu->kvm->arch.iommu_noncoherent;
+	return kvm_arch_has_noncoherent_dma(vcpu->kvm);
 }
 
 void kvm_arch_vcpu_load(struct kvm_vcpu *vcpu, int cpu)
@@ -6998,6 +6997,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
 	INIT_LIST_HEAD(&kvm->arch.active_mmu_pages);
 	INIT_LIST_HEAD(&kvm->arch.zapped_obsolete_pages);
 	INIT_LIST_HEAD(&kvm->arch.assigned_dev_head);
+	atomic_set(&kvm->arch.noncoherent_dma_count, 0);
 
 	/* Reserve bit 0 of irq_sources_bitmap for userspace irq source */
 	set_bit(KVM_USERSPACE_IRQ_SOURCE_ID, &kvm->arch.irq_sources_bitmap);
@@ -7437,6 +7437,24 @@ bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu)
 			kvm_x86_ops->interrupt_allowed(vcpu);
 }
 
+void kvm_arch_register_noncoherent_dma(struct kvm *kvm)
+{
+	atomic_inc(&kvm->arch.noncoherent_dma_count);
+}
+EXPORT_SYMBOL_GPL(kvm_arch_register_noncoherent_dma);
+
+void kvm_arch_unregister_noncoherent_dma(struct kvm *kvm)
+{
+	atomic_dec(&kvm->arch.noncoherent_dma_count);
+}
+EXPORT_SYMBOL_GPL(kvm_arch_unregister_noncoherent_dma);
+
+bool kvm_arch_has_noncoherent_dma(struct kvm *kvm)
+{
+	return atomic_read(&kvm->arch.noncoherent_dma_count);
+}
+EXPORT_SYMBOL_GPL(kvm_arch_has_noncoherent_dma);
+
 EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_exit);
 EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_inj_virq);
 EXPORT_TRACEPOINT_SYMBOL_GPL(kvm_page_fault);
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index ed64880e4915..92aae88756db 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -670,6 +670,25 @@ static inline void kvm_arch_free_vm(struct kvm *kvm)
 }
 #endif
 
+#ifdef __KVM_HAVE_ARCH_NONCOHERENT_DMA
+void kvm_arch_register_noncoherent_dma(struct kvm *kvm);
+void kvm_arch_unregister_noncoherent_dma(struct kvm *kvm);
+bool kvm_arch_has_noncoherent_dma(struct kvm *kvm);
+#else
+static inline void kvm_arch_register_noncoherent_dma(struct kvm *kvm)
+{
+}
+
+static inline void kvm_arch_unregister_noncoherent_dma(struct kvm *kvm)
+{
+}
+
+static inline bool kvm_arch_has_noncoherent_dma(struct kvm *kvm)
+{
+	return false;
+}
+#endif
+
 static inline wait_queue_head_t *kvm_arch_vcpu_wq(struct kvm_vcpu *vcpu)
 {
 #ifdef __KVM_HAVE_ARCH_WQP
diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c
index d32d156a423a..c7d9ce122529 100644
--- a/virt/kvm/iommu.c
+++ b/virt/kvm/iommu.c
@@ -140,6 +140,9 @@ static int kvm_iommu_map_memslots(struct kvm *kvm)
 	struct kvm_memslots *slots;
 	struct kvm_memory_slot *memslot;
 
+	if (kvm->arch.iommu_noncoherent)
+		kvm_arch_register_noncoherent_dma(kvm);
+
 	idx = srcu_read_lock(&kvm->srcu);
 	slots = kvm_memslots(kvm);
 
@@ -327,6 +330,9 @@ static int kvm_iommu_unmap_memslots(struct kvm *kvm)
 
 	srcu_read_unlock(&kvm->srcu, idx);
 
+	if (kvm->arch.iommu_noncoherent)
+		kvm_arch_unregister_noncoherent_dma(kvm);
+
 	return 0;
 }
 
diff --git a/virt/kvm/vfio.c b/virt/kvm/vfio.c
index 597c258245ea..ca4260e35037 100644
--- a/virt/kvm/vfio.c
+++ b/virt/kvm/vfio.c
@@ -27,6 +27,7 @@ struct kvm_vfio_group {
 struct kvm_vfio {
 	struct list_head group_list;
 	struct mutex lock;
+	bool noncoherent;
 };
 
 static struct vfio_group *kvm_vfio_group_get_external_user(struct file *filep)
@@ -58,6 +59,43 @@ static void kvm_vfio_group_put_external_user(struct vfio_group *vfio_group)
 	symbol_put(vfio_group_put_external_user);
 }
 
+/*
+ * Groups can use the same or different IOMMU domains.  If the same then
+ * adding a new group may change the coherency of groups we've previously
+ * been told about.  We don't want to care about any of that so we retest
+ * each group and bail as soon as we find one that's noncoherent.  This
+ * means we only ever [un]register_noncoherent_dma once for the whole device.
+ */
+static void kvm_vfio_update_coherency(struct kvm_device *dev)
+{
+	struct kvm_vfio *kv = dev->private;
+	bool noncoherent = false;
+	struct kvm_vfio_group *kvg;
+
+	mutex_lock(&kv->lock);
+
+	list_for_each_entry(kvg, &kv->group_list, node) {
+		/*
+		 * TODO: We need an interface to check the coherency of
+		 * the IOMMU domain this group is using.  For now, assume
+		 * it's always noncoherent.
+		 */
+		noncoherent = true;
+		break;
+	}
+
+	if (noncoherent != kv->noncoherent) {
+		kv->noncoherent = noncoherent;
+
+		if (kv->noncoherent)
+			kvm_arch_register_noncoherent_dma(dev->kvm);
+		else
+			kvm_arch_unregister_noncoherent_dma(dev->kvm);
+	}
+
+	mutex_unlock(&kv->lock);
+}
+
 static int kvm_vfio_set_group(struct kvm_device *dev, long attr, u64 arg)
 {
 	struct kvm_vfio *kv = dev->private;
@@ -105,6 +143,8 @@ static int kvm_vfio_set_group(struct kvm_device *dev, long attr, u64 arg)
 
 		mutex_unlock(&kv->lock);
 
+		kvm_vfio_update_coherency(dev);
+
 		return 0;
 
 	case KVM_DEV_VFIO_GROUP_DEL:
@@ -140,6 +180,8 @@ static int kvm_vfio_set_group(struct kvm_device *dev, long attr, u64 arg)
 
 		kvm_vfio_group_put_external_user(vfio_group);
 
+		kvm_vfio_update_coherency(dev);
+
 		return ret;
 	}
 
@@ -185,6 +227,8 @@ static void kvm_vfio_destroy(struct kvm_device *dev)
 		kfree(kvg);
 	}
 
+	kvm_vfio_update_coherency(dev);
+
 	kfree(kv);
 	kfree(dev); /* alloc by kvm_ioctl_create_device, free by .destroy */
 }
-- 
cgit 


From afb3690c3cbd0bd82b267934b419c0643e2b938a Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Tue, 29 Oct 2013 11:49:20 +0800
Subject: gpio: bcm-kona: add missing .owner to struct gpio_chip

Add missing .owner of struct gpio_chip. This prevents the
module from being removed from underneath its users.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-bcm-kona.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpio/gpio-bcm-kona.c b/drivers/gpio/gpio-bcm-kona.c
index b3d0f8163277..72c927dc3be1 100644
--- a/drivers/gpio/gpio-bcm-kona.c
+++ b/drivers/gpio/gpio-bcm-kona.c
@@ -280,6 +280,7 @@ static int bcm_kona_gpio_set_debounce(struct gpio_chip *chip, unsigned gpio,
 
 static struct gpio_chip template_chip = {
 	.label = "bcm-kona-gpio",
+	.owner = THIS_MODULE,
 	.direction_input = bcm_kona_gpio_direction_input,
 	.get = bcm_kona_gpio_get,
 	.direction_output = bcm_kona_gpio_direction_output,
-- 
cgit 


From 85aa391528ad11bfdfa5e5dec1f3e91cfe8ab078 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 30 Oct 2013 11:08:55 +0800
Subject: gpio: tb10x: use module_platform_driver to simplify the code

module_platform_driver() makes the code simpler by eliminating
boilerplate code.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-tb10x.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/gpio/gpio-tb10x.c b/drivers/gpio/gpio-tb10x.c
index 833d0f40d40e..af4975c20d85 100644
--- a/drivers/gpio/gpio-tb10x.c
+++ b/drivers/gpio/gpio-tb10x.c
@@ -324,18 +324,7 @@ static struct platform_driver tb10x_gpio_driver = {
 	}
 };
 
-static int __init ab_gpio_init(void)
-{
-	return platform_driver_register(&tb10x_gpio_driver);
-}
-
-static void __exit ab_gpio_exit(void)
-{
-	platform_driver_unregister(&tb10x_gpio_driver);
-}
-
-module_init(ab_gpio_init);
-module_exit(ab_gpio_exit);
+module_platform_driver(tb10x_gpio_driver);
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("tb10x gpio.");
 MODULE_VERSION("0.0.1");
-- 
cgit 


From 9a4864c897549e048b582372eca36e967b87784c Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 30 Oct 2013 11:09:15 +0800
Subject: gpio: tb10x: fix return value check in tb10x_gpio_probe()

In case of error, the function devm_ioremap_resource() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check should
be replaced with IS_ERR(). Also remove the dev_err call to avoid redundant
error message.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-tb10x.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpio/gpio-tb10x.c b/drivers/gpio/gpio-tb10x.c
index af4975c20d85..0502b9a041a5 100644
--- a/drivers/gpio/gpio-tb10x.c
+++ b/drivers/gpio/gpio-tb10x.c
@@ -207,10 +207,8 @@ static int tb10x_gpio_probe(struct platform_device *pdev)
 	spin_lock_init(&tb10x_gpio->spinlock);
 
 	tb10x_gpio->base = devm_ioremap_resource(&pdev->dev, mem);
-	if (!tb10x_gpio->base) {
-		dev_err(&pdev->dev, "Could not remap reg space.\n");
-		goto fail_ioremap;
-	}
+	if (IS_ERR(tb10x_gpio->base))
+		return PTR_ERR(tb10x_gpio->base);
 
 	tb10x_gpio->gc.label		= of_node_full_name(dn);
 	tb10x_gpio->gc.dev		= &pdev->dev;
-- 
cgit 


From 32c5483a8a13a43264809144210ec114dd70b611 Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 29 Oct 2013 22:11:46 +1100
Subject: xfs: abstract the differences in dir2/dir3 via an ops vector

Lots of the dir code now goes through switches to determine what is
the correct on-disk format to parse. It generally involves a
"xfs_sbversion_hasfoo" check, deferencing the superblock version and
feature fields and hence touching several cache lines per operation
in the process. Some operations do multiple checks because they nest
conditional operations and they don't pass the information in a
direct fashion between each other.

Hence, add an ops vector to the xfs_inode structure that is
configured when the inode is initialised to point to all the correct
decode and encoding operations.  This will significantly reduce the
branchiness and cacheline footprint of the directory object decoding
and encoding.

This is the first patch in a series of conversion patches. It will
introduce the ops structure, the setup of it and add the first
operation to the vector. Subsequent patches will convert directory
ops one at a time to keep the changes simple and obvious.

Just this patch shows the benefit of such an approach on code size.
Just converting the two shortform dir operations as this patch does
decreases the built binary size by ~1500 bytes:

$ size fs/xfs/xfs.o.orig fs/xfs/xfs.o.p1
   text    data     bss     dec     hex filename
 794490   96802    1096  892388   d9de4 fs/xfs/xfs.o.orig
 792986   96802    1096  890884   d9804 fs/xfs/xfs.o.p1
$

That's a significant decrease in the instruction cache footprint of
the directory code for such a simple change, and indicates that this
approach is definitely worth pursuing further.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/Makefile           |  1 +
 fs/xfs/xfs_da_btree.h     |  1 +
 fs/xfs/xfs_da_format.c    | 85 +++++++++++++++++++++++++++++++++++++++++++++++
 fs/xfs/xfs_da_format.h    | 26 ---------------
 fs/xfs/xfs_dir2.c         |  7 ++++
 fs/xfs/xfs_dir2.h         | 14 ++++++++
 fs/xfs/xfs_dir2_block.c   |  2 +-
 fs/xfs/xfs_dir2_readdir.c |  4 +--
 fs/xfs/xfs_dir2_sf.c      | 31 +++++++++--------
 fs/xfs/xfs_inode.h        |  3 ++
 fs/xfs/xfs_iops.c         |  1 +
 fs/xfs/xfs_mount.h        |  2 ++
 12 files changed, 132 insertions(+), 45 deletions(-)
 create mode 100644 fs/xfs/xfs_da_format.c

diff --git a/fs/xfs/Makefile b/fs/xfs/Makefile
index 33a69fabfd83..c21f43506661 100644
--- a/fs/xfs/Makefile
+++ b/fs/xfs/Makefile
@@ -66,6 +66,7 @@ xfs-y				+= xfs_alloc.o \
 				   xfs_bmap_btree.o \
 				   xfs_btree.o \
 				   xfs_da_btree.o \
+				   xfs_da_format.o \
 				   xfs_dir2.o \
 				   xfs_dir2_block.o \
 				   xfs_dir2_data.o \
diff --git a/fs/xfs/xfs_da_btree.h b/fs/xfs/xfs_da_btree.h
index e492dcadd032..6e95ea79f5d7 100644
--- a/fs/xfs/xfs_da_btree.h
+++ b/fs/xfs/xfs_da_btree.h
@@ -23,6 +23,7 @@ struct xfs_bmap_free;
 struct xfs_inode;
 struct xfs_trans;
 struct zone;
+struct xfs_dir_ops;
 
 /*========================================================================
  * Btree searching and modification structure definitions.
diff --git a/fs/xfs/xfs_da_format.c b/fs/xfs/xfs_da_format.c
new file mode 100644
index 000000000000..982d105d012f
--- /dev/null
+++ b/fs/xfs/xfs_da_format.c
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2000,2002,2005 Silicon Graphics, Inc.
+ * Copyright (c) 2013 Red Hat, Inc.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+#include "xfs.h"
+#include "xfs_fs.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_sb.h"
+#include "xfs_ag.h"
+#include "xfs_mount.h"
+#include "xfs_da_format.h"
+#include "xfs_inode.h"
+#include "xfs_dir2.h"
+
+
+static int
+xfs_dir2_sf_entsize(
+	struct xfs_dir2_sf_hdr	*hdr,
+	int			len)
+{
+	int count = sizeof(struct xfs_dir2_sf_entry);	/* namelen + offset */
+
+	count += len;					/* name */
+	count += hdr->i8count ? sizeof(xfs_dir2_ino8_t) :
+				sizeof(xfs_dir2_ino4_t); /* ino # */
+	return count;
+}
+
+static int
+xfs_dir3_sf_entsize(
+	struct xfs_dir2_sf_hdr	*hdr,
+	int			len)
+{
+	return xfs_dir2_sf_entsize(hdr, len) + sizeof(__uint8_t);
+}
+
+static struct xfs_dir2_sf_entry *
+xfs_dir2_sf_nextentry(
+	struct xfs_dir2_sf_hdr	*hdr,
+	struct xfs_dir2_sf_entry *sfep)
+{
+	return (struct xfs_dir2_sf_entry *)
+		((char *)sfep + xfs_dir2_sf_entsize(hdr, sfep->namelen));
+}
+
+static struct xfs_dir2_sf_entry *
+xfs_dir3_sf_nextentry(
+	struct xfs_dir2_sf_hdr	*hdr,
+	struct xfs_dir2_sf_entry *sfep)
+{
+	return (struct xfs_dir2_sf_entry *)
+		((char *)sfep + xfs_dir3_sf_entsize(hdr, sfep->namelen));
+}
+
+
+const struct xfs_dir_ops xfs_dir2_ops = {
+	.sf_entsize = xfs_dir2_sf_entsize,
+	.sf_nextentry = xfs_dir2_sf_nextentry,
+};
+
+const struct xfs_dir_ops xfs_dir2_ftype_ops = {
+	.sf_entsize = xfs_dir3_sf_entsize,
+	.sf_nextentry = xfs_dir3_sf_nextentry,
+};
+
+const struct xfs_dir_ops xfs_dir3_ops = {
+	.sf_entsize = xfs_dir3_sf_entsize,
+	.sf_nextentry = xfs_dir3_sf_nextentry,
+};
diff --git a/fs/xfs/xfs_da_format.h b/fs/xfs/xfs_da_format.h
index 89a1a219c8ff..d54726d0fc10 100644
--- a/fs/xfs/xfs_da_format.h
+++ b/fs/xfs/xfs_da_format.h
@@ -329,32 +329,6 @@ xfs_dir2_sf_firstentry(struct xfs_dir2_sf_hdr *hdr)
 		((char *)hdr + xfs_dir2_sf_hdr_size(hdr->i8count));
 }
 
-static inline int
-xfs_dir3_sf_entsize(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_sf_hdr	*hdr,
-	int			len)
-{
-	int count = sizeof(struct xfs_dir2_sf_entry); 	/* namelen + offset */
-
-	count += len;					/* name */
-	count += hdr->i8count ? sizeof(xfs_dir2_ino8_t) :
-				sizeof(xfs_dir2_ino4_t); /* ino # */
-	if (xfs_sb_version_hasftype(&mp->m_sb))
-		count += sizeof(__uint8_t);		/* file type */
-	return count;
-}
-
-static inline struct xfs_dir2_sf_entry *
-xfs_dir3_sf_nextentry(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_sf_hdr	*hdr,
-	struct xfs_dir2_sf_entry *sfep)
-{
-	return (struct xfs_dir2_sf_entry *)
-		((char *)sfep + xfs_dir3_sf_entsize(mp, hdr, sfep->namelen));
-}
-
 /*
  * in dir3 shortform directories, the file type field is stored at a variable
  * offset after the inode number. Because it's only a single byte, endian
diff --git a/fs/xfs/xfs_dir2.c b/fs/xfs/xfs_dir2.c
index 38bf9324302c..7911136453cd 100644
--- a/fs/xfs/xfs_dir2.c
+++ b/fs/xfs/xfs_dir2.c
@@ -112,6 +112,13 @@ xfs_dir_mount(
 		mp->m_dirnameops = &xfs_ascii_ci_nameops;
 	else
 		mp->m_dirnameops = &xfs_default_nameops;
+
+	if (xfs_sb_version_hascrc(&mp->m_sb))
+		mp->m_dir_inode_ops = &xfs_dir3_ops;
+	else if (xfs_sb_version_hasftype(&mp->m_sb))
+		mp->m_dir_inode_ops = &xfs_dir2_ftype_ops;
+	else
+		mp->m_dir_inode_ops = &xfs_dir2_ops;
 }
 
 /*
diff --git a/fs/xfs/xfs_dir2.h b/fs/xfs/xfs_dir2.h
index 9910401327d4..1909d9faff71 100644
--- a/fs/xfs/xfs_dir2.h
+++ b/fs/xfs/xfs_dir2.h
@@ -31,6 +31,20 @@ struct xfs_dir2_data_unused;
 
 extern struct xfs_name	xfs_name_dotdot;
 
+/*
+ * directory operations vector for encode/decode routines
+ */
+struct xfs_dir_ops {
+	int	(*sf_entsize)(struct xfs_dir2_sf_hdr *hdr, int len);
+	struct xfs_dir2_sf_entry *
+		(*sf_nextentry)(struct xfs_dir2_sf_hdr *hdr,
+				struct xfs_dir2_sf_entry *sfep);
+};
+
+extern const struct xfs_dir_ops xfs_dir2_ops;
+extern const struct xfs_dir_ops xfs_dir2_ftype_ops;
+extern const struct xfs_dir_ops xfs_dir3_ops;
+
 /*
  * Generic directory interface routines
  */
diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c
index 9f3f83a5e2da..9d86b6f9e80f 100644
--- a/fs/xfs/xfs_dir2_block.c
+++ b/fs/xfs/xfs_dir2_block.c
@@ -1240,7 +1240,7 @@ xfs_dir2_sf_to_block(
 		if (++i == sfp->count)
 			sfep = NULL;
 		else
-			sfep = xfs_dir3_sf_nextentry(mp, sfp, sfep);
+			sfep = dp->d_ops->sf_nextentry(sfp, sfep);
 	}
 	/* Done with the temporary buffer */
 	kmem_free(sfp);
diff --git a/fs/xfs/xfs_dir2_readdir.c b/fs/xfs/xfs_dir2_readdir.c
index 45c9ce8cdb28..80333055df34 100644
--- a/fs/xfs/xfs_dir2_readdir.c
+++ b/fs/xfs/xfs_dir2_readdir.c
@@ -153,7 +153,7 @@ xfs_dir2_sf_getdents(
 				xfs_dir2_sf_get_offset(sfep));
 
 		if (ctx->pos > off) {
-			sfep = xfs_dir3_sf_nextentry(mp, sfp, sfep);
+			sfep = dp->d_ops->sf_nextentry(sfp, sfep);
 			continue;
 		}
 
@@ -163,7 +163,7 @@ xfs_dir2_sf_getdents(
 		if (!dir_emit(ctx, (char *)sfep->name, sfep->namelen, ino,
 			    xfs_dir3_get_dtype(mp, filetype)))
 			return 0;
-		sfep = xfs_dir3_sf_nextentry(mp, sfp, sfep);
+		sfep = dp->d_ops->sf_nextentry(sfp, sfep);
 	}
 
 	ctx->pos = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk + 1, 0) &
diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c
index 8811ee5eaec6..73881c9f40d6 100644
--- a/fs/xfs/xfs_dir2_sf.c
+++ b/fs/xfs/xfs_dir2_sf.c
@@ -336,7 +336,7 @@ xfs_dir2_block_to_sf(
 			xfs_dir3_sfe_put_ftype(mp, sfp, sfep,
 					xfs_dir3_dirent_get_ftype(mp, dep));
 
-			sfep = xfs_dir3_sf_nextentry(mp, sfp, sfep);
+			sfep = dp->d_ops->sf_nextentry(sfp, sfep);
 		}
 		ptr += xfs_dir3_data_entsize(mp, dep->namelen);
 	}
@@ -389,7 +389,7 @@ xfs_dir2_sf_addname(
 	/*
 	 * Compute entry (and change in) size.
 	 */
-	add_entsize = xfs_dir3_sf_entsize(dp->i_mount, sfp, args->namelen);
+	add_entsize = dp->d_ops->sf_entsize(sfp, args->namelen);
 	incr_isize = add_entsize;
 	objchange = 0;
 #if XFS_BIG_INUMS
@@ -483,8 +483,7 @@ xfs_dir2_sf_addname_easy(
 	/*
 	 * Grow the in-inode space.
 	 */
-	xfs_idata_realloc(dp,
-			  xfs_dir3_sf_entsize(dp->i_mount, sfp, args->namelen),
+	xfs_idata_realloc(dp, dp->d_ops->sf_entsize(sfp, args->namelen),
 			  XFS_DATA_FORK);
 	/*
 	 * Need to set up again due to realloc of the inode data.
@@ -563,7 +562,7 @@ xfs_dir2_sf_addname_hard(
 	      eof = (char *)oldsfep == &buf[old_isize];
 	     !eof;
 	     offset = new_offset + xfs_dir3_data_entsize(mp, oldsfep->namelen),
-	      oldsfep = xfs_dir3_sf_nextentry(mp, oldsfp, oldsfep),
+	      oldsfep = dp->d_ops->sf_nextentry(oldsfp, oldsfep),
 	      eof = (char *)oldsfep == &buf[old_isize]) {
 		new_offset = xfs_dir2_sf_get_offset(oldsfep);
 		if (offset + add_datasize <= new_offset)
@@ -603,7 +602,7 @@ xfs_dir2_sf_addname_hard(
 	 * If there's more left to copy, do that.
 	 */
 	if (!eof) {
-		sfep = xfs_dir3_sf_nextentry(mp, sfp, sfep);
+		sfep = dp->d_ops->sf_nextentry(sfp, sfep);
 		memcpy(sfep, oldsfep, old_isize - nbytes);
 	}
 	kmem_free(buf);
@@ -653,7 +652,7 @@ xfs_dir2_sf_addname_pick(
 			holefit = offset + size <= xfs_dir2_sf_get_offset(sfep);
 		offset = xfs_dir2_sf_get_offset(sfep) +
 			 xfs_dir3_data_entsize(mp, sfep->namelen);
-		sfep = xfs_dir3_sf_nextentry(mp, sfp, sfep);
+		sfep = dp->d_ops->sf_nextentry(sfp, sfep);
 	}
 	/*
 	 * Calculate data bytes used excluding the new entry, if this
@@ -719,7 +718,7 @@ xfs_dir2_sf_check(
 
 	for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp);
 	     i < sfp->count;
-	     i++, sfep = xfs_dir3_sf_nextentry(mp, sfp, sfep)) {
+	     i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep)) {
 		ASSERT(xfs_dir2_sf_get_offset(sfep) >= offset);
 		ino = xfs_dir3_sfe_get_ino(mp, sfp, sfep);
 		i8count += ino > XFS_DIR2_MAX_SHORT_INUM;
@@ -848,7 +847,7 @@ xfs_dir2_sf_lookup(
 	 */
 	ci_sfep = NULL;
 	for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count;
-	     i++, sfep = xfs_dir3_sf_nextentry(dp->i_mount, sfp, sfep)) {
+	     i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep)) {
 		/*
 		 * Compare name and if it's an exact match, return the inode
 		 * number. If it's the first case-insensitive match, store the
@@ -917,7 +916,7 @@ xfs_dir2_sf_removename(
 	 * Find the one we're deleting.
 	 */
 	for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count;
-	     i++, sfep = xfs_dir3_sf_nextentry(dp->i_mount, sfp, sfep)) {
+	     i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep)) {
 		if (xfs_da_compname(args, sfep->name, sfep->namelen) ==
 								XFS_CMP_EXACT) {
 			ASSERT(xfs_dir3_sfe_get_ino(dp->i_mount, sfp, sfep) ==
@@ -934,7 +933,7 @@ xfs_dir2_sf_removename(
 	 * Calculate sizes.
 	 */
 	byteoff = (int)((char *)sfep - (char *)sfp);
-	entsize = xfs_dir3_sf_entsize(dp->i_mount, sfp, args->namelen);
+	entsize = dp->d_ops->sf_entsize(sfp, args->namelen);
 	newsize = oldsize - entsize;
 	/*
 	 * Copy the part if any after the removed entry, sliding it down.
@@ -1051,7 +1050,7 @@ xfs_dir2_sf_replace(
 	 */
 	else {
 		for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp); i < sfp->count;
-		     i++, sfep = xfs_dir3_sf_nextentry(dp->i_mount, sfp, sfep)) {
+		     i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep)) {
 			if (xfs_da_compname(args, sfep->name, sfep->namelen) ==
 								XFS_CMP_EXACT) {
 #if XFS_BIG_INUMS || defined(DEBUG)
@@ -1172,8 +1171,8 @@ xfs_dir2_sf_toino4(
 	for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp),
 		    oldsfep = xfs_dir2_sf_firstentry(oldsfp);
 	     i < sfp->count;
-	     i++, sfep = xfs_dir3_sf_nextentry(mp, sfp, sfep),
-		  oldsfep = xfs_dir3_sf_nextentry(mp, oldsfp, oldsfep)) {
+	     i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep),
+		  oldsfep = dp->d_ops->sf_nextentry(oldsfp, oldsfep)) {
 		sfep->namelen = oldsfep->namelen;
 		sfep->offset = oldsfep->offset;
 		memcpy(sfep->name, oldsfep->name, sfep->namelen);
@@ -1251,8 +1250,8 @@ xfs_dir2_sf_toino8(
 	for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp),
 		    oldsfep = xfs_dir2_sf_firstentry(oldsfp);
 	     i < sfp->count;
-	     i++, sfep = xfs_dir3_sf_nextentry(mp, sfp, sfep),
-		  oldsfep = xfs_dir3_sf_nextentry(mp, oldsfp, oldsfep)) {
+	     i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep),
+		  oldsfep = dp->d_ops->sf_nextentry(oldsfp, oldsfep)) {
 		sfep->namelen = oldsfep->namelen;
 		sfep->offset = oldsfep->offset;
 		memcpy(sfep->name, oldsfep->name, sfep->namelen);
diff --git a/fs/xfs/xfs_inode.h b/fs/xfs/xfs_inode.h
index 66675877f38c..9e6efccbae04 100644
--- a/fs/xfs/xfs_inode.h
+++ b/fs/xfs/xfs_inode.h
@@ -49,6 +49,9 @@ typedef struct xfs_inode {
 	xfs_ifork_t		*i_afp;		/* attribute fork pointer */
 	xfs_ifork_t		i_df;		/* data fork */
 
+	/* operations vectors */
+	const struct xfs_dir_ops *d_ops;		/* directory ops vector */
+
 	/* Transaction and locking information. */
 	struct xfs_inode_log_item *i_itemp;	/* logging information */
 	mrlock_t		i_lock;		/* inode lock */
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 718b62b0fe05..0493587ea6bc 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -1215,6 +1215,7 @@ xfs_setup_inode(
 		else
 			inode->i_op = &xfs_dir_inode_operations;
 		inode->i_fop = &xfs_dir_file_operations;
+		ip->d_ops = ip->i_mount->m_dir_inode_ops;
 		break;
 	case S_IFLNK:
 		inode->i_op = &xfs_symlink_inode_operations;
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 1fa0584b5627..973397f66c6b 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -26,6 +26,7 @@ struct xfs_mru_cache;
 struct xfs_nameops;
 struct xfs_ail;
 struct xfs_quotainfo;
+struct xfs_dir_ops;
 
 #ifdef HAVE_PERCPU_SB
 
@@ -148,6 +149,7 @@ typedef struct xfs_mount {
 	int			m_dir_magicpct;	/* 37% of the dir blocksize */
 	__uint8_t		m_sectbb_log;	/* sectlog - BBSHIFT */
 	const struct xfs_nameops *m_dirnameops;	/* vector of dir name ops */
+	const struct xfs_dir_ops *m_dir_inode_ops; /* vector of dir inode ops */
 	int			m_dirblksize;	/* directory block sz--bytes */
 	int			m_dirblkfsbs;	/* directory block sz--fsbs */
 	xfs_dablk_t		m_dirdatablk;	/* blockno of dir data v2 */
-- 
cgit 


From 4740175e75f70ab71f76ae98ab00f7db731a48f7 Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 29 Oct 2013 22:11:47 +1100
Subject: xfs: vectorise remaining shortform dir2 ops

Following from the initial patch to introduce the directory
operations vector, convert the rest of the shortform directory
operations to use vectored ops rather than superblock feature
checks. This further reduces the size of the built binary:

   text    data     bss     dec     hex filename
 794490   96802    1096  892388   d9de4 fs/xfs/xfs.o.orig
 792986   96802    1096  890884   d9804 fs/xfs/xfs.o.p1
 792350   96802    1096  890248   d9588 fs/xfs/xfs.o.p2

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_da_format.c    | 152 ++++++++++++++++++++++++++++++++++++++++++++++
 fs/xfs/xfs_da_format.h    |  47 --------------
 fs/xfs/xfs_dir2.h         |  20 +++---
 fs/xfs/xfs_dir2_block.c   |   6 +-
 fs/xfs/xfs_dir2_readdir.c |   6 +-
 fs/xfs/xfs_dir2_sf.c      | 151 +++++++++------------------------------------
 6 files changed, 199 insertions(+), 183 deletions(-)

diff --git a/fs/xfs/xfs_da_format.c b/fs/xfs/xfs_da_format.c
index 982d105d012f..62f55a0186ae 100644
--- a/fs/xfs/xfs_da_format.c
+++ b/fs/xfs/xfs_da_format.c
@@ -69,17 +69,169 @@ xfs_dir3_sf_nextentry(
 }
 
 
+/*
+ * For filetype enabled shortform directories, the file type field is stored at
+ * the end of the name.  Because it's only a single byte, endian conversion is
+ * not necessary. For non-filetype enable directories, the type is always
+ * unknown and we never store the value.
+ */
+static __uint8_t
+xfs_dir2_sfe_get_ftype(
+	struct xfs_dir2_sf_entry *sfep)
+{
+	return XFS_DIR3_FT_UNKNOWN;
+}
+
+static void
+xfs_dir2_sfe_put_ftype(
+	struct xfs_dir2_sf_entry *sfep,
+	__uint8_t		ftype)
+{
+	ASSERT(ftype < XFS_DIR3_FT_MAX);
+}
+
+static __uint8_t
+xfs_dir3_sfe_get_ftype(
+	struct xfs_dir2_sf_entry *sfep)
+{
+	__uint8_t	ftype;
+
+	ftype = sfep->name[sfep->namelen];
+	if (ftype >= XFS_DIR3_FT_MAX)
+		return XFS_DIR3_FT_UNKNOWN;
+	return ftype;
+}
+
+static void
+xfs_dir3_sfe_put_ftype(
+	struct xfs_dir2_sf_entry *sfep,
+	__uint8_t		ftype)
+{
+	ASSERT(ftype < XFS_DIR3_FT_MAX);
+
+	sfep->name[sfep->namelen] = ftype;
+}
+
+/*
+ * Inode numbers in short-form directories can come in two versions,
+ * either 4 bytes or 8 bytes wide.  These helpers deal with the
+ * two forms transparently by looking at the headers i8count field.
+ *
+ * For 64-bit inode number the most significant byte must be zero.
+ */
+static xfs_ino_t
+xfs_dir2_sf_get_ino(
+	struct xfs_dir2_sf_hdr	*hdr,
+	xfs_dir2_inou_t		*from)
+{
+	if (hdr->i8count)
+		return get_unaligned_be64(&from->i8.i) & 0x00ffffffffffffffULL;
+	else
+		return get_unaligned_be32(&from->i4.i);
+}
+
+static void
+xfs_dir2_sf_put_ino(
+	struct xfs_dir2_sf_hdr	*hdr,
+	xfs_dir2_inou_t		*to,
+	xfs_ino_t		ino)
+{
+	ASSERT((ino & 0xff00000000000000ULL) == 0);
+
+	if (hdr->i8count)
+		put_unaligned_be64(ino, &to->i8.i);
+	else
+		put_unaligned_be32(ino, &to->i4.i);
+}
+
+static xfs_ino_t
+xfs_dir2_sf_get_parent_ino(
+	struct xfs_dir2_sf_hdr	*hdr)
+{
+	return xfs_dir2_sf_get_ino(hdr, &hdr->parent);
+}
+
+static void
+xfs_dir2_sf_put_parent_ino(
+	struct xfs_dir2_sf_hdr	*hdr,
+	xfs_ino_t		ino)
+{
+	xfs_dir2_sf_put_ino(hdr, &hdr->parent, ino);
+}
+
+/*
+ * In short-form directory entries the inode numbers are stored at variable
+ * offset behind the entry name. If the entry stores a filetype value, then it
+ * sits between the name and the inode number. Hence the inode numbers may only
+ * be accessed through the helpers below.
+ */
+static xfs_ino_t
+xfs_dir2_sfe_get_ino(
+	struct xfs_dir2_sf_hdr	*hdr,
+	struct xfs_dir2_sf_entry *sfep)
+{
+	return xfs_dir2_sf_get_ino(hdr,
+				(xfs_dir2_inou_t *)&sfep->name[sfep->namelen]);
+}
+
+static void
+xfs_dir2_sfe_put_ino(
+	struct xfs_dir2_sf_hdr	*hdr,
+	struct xfs_dir2_sf_entry *sfep,
+	xfs_ino_t		ino)
+{
+	xfs_dir2_sf_put_ino(hdr,
+			    (xfs_dir2_inou_t *)&sfep->name[sfep->namelen], ino);
+}
+
+static xfs_ino_t
+xfs_dir3_sfe_get_ino(
+	struct xfs_dir2_sf_hdr	*hdr,
+	struct xfs_dir2_sf_entry *sfep)
+{
+	return xfs_dir2_sf_get_ino(hdr,
+			(xfs_dir2_inou_t *)&sfep->name[sfep->namelen + 1]);
+}
+
+static void
+xfs_dir3_sfe_put_ino(
+	struct xfs_dir2_sf_hdr	*hdr,
+	struct xfs_dir2_sf_entry *sfep,
+	xfs_ino_t		ino)
+{
+	xfs_dir2_sf_put_ino(hdr,
+			(xfs_dir2_inou_t *)&sfep->name[sfep->namelen + 1], ino);
+}
+
 const struct xfs_dir_ops xfs_dir2_ops = {
 	.sf_entsize = xfs_dir2_sf_entsize,
 	.sf_nextentry = xfs_dir2_sf_nextentry,
+	.sf_get_ftype = xfs_dir2_sfe_get_ftype,
+	.sf_put_ftype = xfs_dir2_sfe_put_ftype,
+	.sf_get_ino = xfs_dir2_sfe_get_ino,
+	.sf_put_ino = xfs_dir2_sfe_put_ino,
+	.sf_get_parent_ino = xfs_dir2_sf_get_parent_ino,
+	.sf_put_parent_ino = xfs_dir2_sf_put_parent_ino,
 };
 
 const struct xfs_dir_ops xfs_dir2_ftype_ops = {
 	.sf_entsize = xfs_dir3_sf_entsize,
 	.sf_nextentry = xfs_dir3_sf_nextentry,
+	.sf_get_ftype = xfs_dir3_sfe_get_ftype,
+	.sf_put_ftype = xfs_dir3_sfe_put_ftype,
+	.sf_get_ino = xfs_dir3_sfe_get_ino,
+	.sf_put_ino = xfs_dir3_sfe_put_ino,
+	.sf_get_parent_ino = xfs_dir2_sf_get_parent_ino,
+	.sf_put_parent_ino = xfs_dir2_sf_put_parent_ino,
 };
 
 const struct xfs_dir_ops xfs_dir3_ops = {
 	.sf_entsize = xfs_dir3_sf_entsize,
 	.sf_nextentry = xfs_dir3_sf_nextentry,
+	.sf_get_ftype = xfs_dir3_sfe_get_ftype,
+	.sf_put_ftype = xfs_dir3_sfe_put_ftype,
+	.sf_get_ino = xfs_dir3_sfe_get_ino,
+	.sf_put_ino = xfs_dir3_sfe_put_ino,
+	.sf_get_parent_ino = xfs_dir2_sf_get_parent_ino,
+	.sf_put_parent_ino = xfs_dir2_sf_put_parent_ino,
 };
diff --git a/fs/xfs/xfs_da_format.h b/fs/xfs/xfs_da_format.h
index d54726d0fc10..68c2ad5ba54f 100644
--- a/fs/xfs/xfs_da_format.h
+++ b/fs/xfs/xfs_da_format.h
@@ -329,53 +329,6 @@ xfs_dir2_sf_firstentry(struct xfs_dir2_sf_hdr *hdr)
 		((char *)hdr + xfs_dir2_sf_hdr_size(hdr->i8count));
 }
 
-/*
- * in dir3 shortform directories, the file type field is stored at a variable
- * offset after the inode number. Because it's only a single byte, endian
- * conversion is not necessary.
- */
-static inline __uint8_t *
-xfs_dir3_sfe_ftypep(
-	struct xfs_dir2_sf_hdr	*hdr,
-	struct xfs_dir2_sf_entry *sfep)
-{
-	return (__uint8_t *)&sfep->name[sfep->namelen];
-}
-
-static inline __uint8_t
-xfs_dir3_sfe_get_ftype(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_sf_hdr	*hdr,
-	struct xfs_dir2_sf_entry *sfep)
-{
-	__uint8_t	*ftp;
-
-	if (!xfs_sb_version_hasftype(&mp->m_sb))
-		return XFS_DIR3_FT_UNKNOWN;
-
-	ftp = xfs_dir3_sfe_ftypep(hdr, sfep);
-	if (*ftp >= XFS_DIR3_FT_MAX)
-		return XFS_DIR3_FT_UNKNOWN;
-	return *ftp;
-}
-
-static inline void
-xfs_dir3_sfe_put_ftype(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_sf_hdr	*hdr,
-	struct xfs_dir2_sf_entry *sfep,
-	__uint8_t		ftype)
-{
-	__uint8_t	*ftp;
-
-	ASSERT(ftype < XFS_DIR3_FT_MAX);
-
-	if (!xfs_sb_version_hasftype(&mp->m_sb))
-		return;
-	ftp = xfs_dir3_sfe_ftypep(hdr, sfep);
-	*ftp = ftype;
-}
-
 /*
  * Data block structures.
  *
diff --git a/fs/xfs/xfs_dir2.h b/fs/xfs/xfs_dir2.h
index 1909d9faff71..0e94b3e662af 100644
--- a/fs/xfs/xfs_dir2.h
+++ b/fs/xfs/xfs_dir2.h
@@ -39,6 +39,17 @@ struct xfs_dir_ops {
 	struct xfs_dir2_sf_entry *
 		(*sf_nextentry)(struct xfs_dir2_sf_hdr *hdr,
 				struct xfs_dir2_sf_entry *sfep);
+	__uint8_t (*sf_get_ftype)(struct xfs_dir2_sf_entry *sfep);
+	void	(*sf_put_ftype)(struct xfs_dir2_sf_entry *sfep,
+				__uint8_t ftype);
+	xfs_ino_t (*sf_get_ino)(struct xfs_dir2_sf_hdr *hdr,
+				struct xfs_dir2_sf_entry *sfep);
+	void	(*sf_put_ino)(struct xfs_dir2_sf_hdr *hdr,
+			      struct xfs_dir2_sf_entry *sfep,
+			      xfs_ino_t ino);
+	xfs_ino_t (*sf_get_parent_ino)(struct xfs_dir2_sf_hdr *hdr);
+	void	(*sf_put_parent_ino)(struct xfs_dir2_sf_hdr *hdr,
+				     xfs_ino_t ino);
 };
 
 extern const struct xfs_dir_ops xfs_dir2_ops;
@@ -79,15 +90,6 @@ extern int xfs_dir2_sf_to_block(struct xfs_da_args *args);
 /*
  * Interface routines used by userspace utilities
  */
-extern xfs_ino_t xfs_dir2_sf_get_parent_ino(struct xfs_dir2_sf_hdr *sfp);
-extern void xfs_dir2_sf_put_parent_ino(struct xfs_dir2_sf_hdr *sfp,
-		xfs_ino_t ino);
-extern xfs_ino_t xfs_dir3_sfe_get_ino(struct xfs_mount *mp,
-		struct xfs_dir2_sf_hdr *sfp, struct xfs_dir2_sf_entry *sfep);
-extern void xfs_dir3_sfe_put_ino(struct xfs_mount *mp,
-		struct xfs_dir2_sf_hdr *hdr, struct xfs_dir2_sf_entry *sfep,
-		xfs_ino_t ino);
-
 extern int xfs_dir2_isblock(struct xfs_trans *tp, struct xfs_inode *dp, int *r);
 extern int xfs_dir2_isleaf(struct xfs_trans *tp, struct xfs_inode *dp, int *r);
 extern int xfs_dir2_shrink_inode(struct xfs_da_args *args, xfs_dir2_db_t db,
diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c
index 9d86b6f9e80f..960f3ab526f6 100644
--- a/fs/xfs/xfs_dir2_block.c
+++ b/fs/xfs/xfs_dir2_block.c
@@ -1173,7 +1173,7 @@ xfs_dir2_sf_to_block(
 	 * Create entry for ..
 	 */
 	dep = xfs_dir3_data_dotdot_entry_p(mp, hdr);
-	dep->inumber = cpu_to_be64(xfs_dir2_sf_get_parent_ino(sfp));
+	dep->inumber = cpu_to_be64(dp->d_ops->sf_get_parent_ino(sfp));
 	dep->namelen = 2;
 	dep->name[0] = dep->name[1] = '.';
 	xfs_dir3_dirent_put_ftype(mp, dep, XFS_DIR3_FT_DIR);
@@ -1222,10 +1222,10 @@ xfs_dir2_sf_to_block(
 		 * Copy a real entry.
 		 */
 		dep = (xfs_dir2_data_entry_t *)((char *)hdr + newoffset);
-		dep->inumber = cpu_to_be64(xfs_dir3_sfe_get_ino(mp, sfp, sfep));
+		dep->inumber = cpu_to_be64(dp->d_ops->sf_get_ino(sfp, sfep));
 		dep->namelen = sfep->namelen;
 		xfs_dir3_dirent_put_ftype(mp, dep,
-					xfs_dir3_sfe_get_ftype(mp, sfp, sfep));
+					  dp->d_ops->sf_get_ftype(sfep));
 		memcpy(dep->name, sfep->name, dep->namelen);
 		tagp = xfs_dir3_data_entry_tag_p(mp, dep);
 		*tagp = cpu_to_be16((char *)dep - (char *)hdr);
diff --git a/fs/xfs/xfs_dir2_readdir.c b/fs/xfs/xfs_dir2_readdir.c
index 80333055df34..2d2c8fb05541 100644
--- a/fs/xfs/xfs_dir2_readdir.c
+++ b/fs/xfs/xfs_dir2_readdir.c
@@ -136,7 +136,7 @@ xfs_dir2_sf_getdents(
 	 * Put .. entry unless we're starting past it.
 	 */
 	if (ctx->pos <= dotdot_offset) {
-		ino = xfs_dir2_sf_get_parent_ino(sfp);
+		ino = dp->d_ops->sf_get_parent_ino(sfp);
 		ctx->pos = dotdot_offset & 0x7fffffff;
 		if (!dir_emit(ctx, "..", 2, ino, DT_DIR))
 			return 0;
@@ -157,8 +157,8 @@ xfs_dir2_sf_getdents(
 			continue;
 		}
 
-		ino = xfs_dir3_sfe_get_ino(mp, sfp, sfep);
-		filetype = xfs_dir3_sfe_get_ftype(mp, sfp, sfep);
+		ino = dp->d_ops->sf_get_ino(sfp, sfep);
+		filetype = dp->d_ops->sf_get_ftype(sfep);
 		ctx->pos = off & 0x7fffffff;
 		if (!dir_emit(ctx, (char *)sfep->name, sfep->namelen, ino,
 			    xfs_dir3_get_dtype(mp, filetype)))
diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c
index 73881c9f40d6..ec0d39b5fa12 100644
--- a/fs/xfs/xfs_dir2_sf.c
+++ b/fs/xfs/xfs_dir2_sf.c
@@ -56,89 +56,6 @@ static void xfs_dir2_sf_toino4(xfs_da_args_t *args);
 static void xfs_dir2_sf_toino8(xfs_da_args_t *args);
 #endif /* XFS_BIG_INUMS */
 
-/*
- * Inode numbers in short-form directories can come in two versions,
- * either 4 bytes or 8 bytes wide.  These helpers deal with the
- * two forms transparently by looking at the headers i8count field.
- *
- * For 64-bit inode number the most significant byte must be zero.
- */
-static xfs_ino_t
-xfs_dir2_sf_get_ino(
-	struct xfs_dir2_sf_hdr	*hdr,
-	xfs_dir2_inou_t		*from)
-{
-	if (hdr->i8count)
-		return get_unaligned_be64(&from->i8.i) & 0x00ffffffffffffffULL;
-	else
-		return get_unaligned_be32(&from->i4.i);
-}
-
-static void
-xfs_dir2_sf_put_ino(
-	struct xfs_dir2_sf_hdr	*hdr,
-	xfs_dir2_inou_t		*to,
-	xfs_ino_t		ino)
-{
-	ASSERT((ino & 0xff00000000000000ULL) == 0);
-
-	if (hdr->i8count)
-		put_unaligned_be64(ino, &to->i8.i);
-	else
-		put_unaligned_be32(ino, &to->i4.i);
-}
-
-xfs_ino_t
-xfs_dir2_sf_get_parent_ino(
-	struct xfs_dir2_sf_hdr	*hdr)
-{
-	return xfs_dir2_sf_get_ino(hdr, &hdr->parent);
-}
-
-void
-xfs_dir2_sf_put_parent_ino(
-	struct xfs_dir2_sf_hdr	*hdr,
-	xfs_ino_t		ino)
-{
-	xfs_dir2_sf_put_ino(hdr, &hdr->parent, ino);
-}
-
-/*
- * In short-form directory entries the inode numbers are stored at variable
- * offset behind the entry name. If the entry stores a filetype value, then it
- * sits between the name and the inode number. Hence the inode numbers may only
- * be accessed through the helpers below.
- */
-static xfs_dir2_inou_t *
-xfs_dir3_sfe_inop(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_sf_entry *sfep)
-{
-	__uint8_t	*ptr = &sfep->name[sfep->namelen];
-	if (xfs_sb_version_hasftype(&mp->m_sb))
-		ptr++;
-	return (xfs_dir2_inou_t *)ptr;
-}
-
-xfs_ino_t
-xfs_dir3_sfe_get_ino(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_sf_hdr	*hdr,
-	struct xfs_dir2_sf_entry *sfep)
-{
-	return xfs_dir2_sf_get_ino(hdr, xfs_dir3_sfe_inop(mp, sfep));
-}
-
-void
-xfs_dir3_sfe_put_ino(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_sf_hdr	*hdr,
-	struct xfs_dir2_sf_entry *sfep,
-	xfs_ino_t		ino)
-{
-	xfs_dir2_sf_put_ino(hdr, xfs_dir3_sfe_inop(mp, sfep), ino);
-}
-
 /*
  * Given a block directory (dp/block), calculate its size as a shortform (sf)
  * directory and a header for the sf directory, if it will fit it the
@@ -226,7 +143,7 @@ xfs_dir2_block_sfsize(
 	 */
 	sfhp->count = count;
 	sfhp->i8count = i8count;
-	xfs_dir2_sf_put_parent_ino(sfhp, parent);
+	dp->d_ops->sf_put_parent_ino(sfhp, parent);
 	return size;
 }
 
@@ -321,7 +238,7 @@ xfs_dir2_block_to_sf(
 		else if (dep->namelen == 2 &&
 			 dep->name[0] == '.' && dep->name[1] == '.')
 			ASSERT(be64_to_cpu(dep->inumber) ==
-			       xfs_dir2_sf_get_parent_ino(sfp));
+			       dp->d_ops->sf_get_parent_ino(sfp));
 		/*
 		 * Normal entry, copy it into shortform.
 		 */
@@ -331,9 +248,9 @@ xfs_dir2_block_to_sf(
 				(xfs_dir2_data_aoff_t)
 				((char *)dep - (char *)hdr));
 			memcpy(sfep->name, dep->name, dep->namelen);
-			xfs_dir3_sfe_put_ino(mp, sfp, sfep,
-					     be64_to_cpu(dep->inumber));
-			xfs_dir3_sfe_put_ftype(mp, sfp, sfep,
+			dp->d_ops->sf_put_ino(sfp, sfep,
+					      be64_to_cpu(dep->inumber));
+			dp->d_ops->sf_put_ftype(sfep,
 					xfs_dir3_dirent_get_ftype(mp, dep));
 
 			sfep = dp->d_ops->sf_nextentry(sfp, sfep);
@@ -496,8 +413,8 @@ xfs_dir2_sf_addname_easy(
 	sfep->namelen = args->namelen;
 	xfs_dir2_sf_put_offset(sfep, offset);
 	memcpy(sfep->name, args->name, sfep->namelen);
-	xfs_dir3_sfe_put_ino(dp->i_mount, sfp, sfep, args->inumber);
-	xfs_dir3_sfe_put_ftype(dp->i_mount, sfp, sfep, args->filetype);
+	dp->d_ops->sf_put_ino(sfp, sfep, args->inumber);
+	dp->d_ops->sf_put_ftype(sfep, args->filetype);
 
 	/*
 	 * Update the header and inode.
@@ -591,8 +508,8 @@ xfs_dir2_sf_addname_hard(
 	sfep->namelen = args->namelen;
 	xfs_dir2_sf_put_offset(sfep, offset);
 	memcpy(sfep->name, args->name, sfep->namelen);
-	xfs_dir3_sfe_put_ino(mp, sfp, sfep, args->inumber);
-	xfs_dir3_sfe_put_ftype(mp, sfp, sfep, args->filetype);
+	dp->d_ops->sf_put_ino(sfp, sfep, args->inumber);
+	dp->d_ops->sf_put_ftype(sfep, args->filetype);
 	sfp->count++;
 #if XFS_BIG_INUMS
 	if (args->inumber > XFS_DIR2_MAX_SHORT_INUM && !objchange)
@@ -713,20 +630,19 @@ xfs_dir2_sf_check(
 
 	sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
 	offset = xfs_dir3_data_first_offset(mp);
-	ino = xfs_dir2_sf_get_parent_ino(sfp);
+	ino = dp->d_ops->sf_get_parent_ino(sfp);
 	i8count = ino > XFS_DIR2_MAX_SHORT_INUM;
 
 	for (i = 0, sfep = xfs_dir2_sf_firstentry(sfp);
 	     i < sfp->count;
 	     i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep)) {
 		ASSERT(xfs_dir2_sf_get_offset(sfep) >= offset);
-		ino = xfs_dir3_sfe_get_ino(mp, sfp, sfep);
+		ino = dp->d_ops->sf_get_ino(sfp, sfep);
 		i8count += ino > XFS_DIR2_MAX_SHORT_INUM;
 		offset =
 			xfs_dir2_sf_get_offset(sfep) +
 			xfs_dir3_data_entsize(mp, sfep->namelen);
-		ASSERT(xfs_dir3_sfe_get_ftype(mp, sfp, sfep) <
-							XFS_DIR3_FT_MAX);
+		ASSERT(dp->d_ops->sf_get_ftype(sfep) < XFS_DIR3_FT_MAX);
 	}
 	ASSERT(i8count == sfp->i8count);
 	ASSERT(XFS_BIG_INUMS || i8count == 0);
@@ -782,7 +698,7 @@ xfs_dir2_sf_create(
 	/*
 	 * Now can put in the inode number, since i8count is set.
 	 */
-	xfs_dir2_sf_put_parent_ino(sfp, pino);
+	dp->d_ops->sf_put_parent_ino(sfp, pino);
 	sfp->count = 0;
 	dp->i_d.di_size = size;
 	xfs_dir2_sf_check(args);
@@ -837,7 +753,7 @@ xfs_dir2_sf_lookup(
 	 */
 	if (args->namelen == 2 &&
 	    args->name[0] == '.' && args->name[1] == '.') {
-		args->inumber = xfs_dir2_sf_get_parent_ino(sfp);
+		args->inumber = dp->d_ops->sf_get_parent_ino(sfp);
 		args->cmpresult = XFS_CMP_EXACT;
 		args->filetype = XFS_DIR3_FT_DIR;
 		return XFS_ERROR(EEXIST);
@@ -857,10 +773,8 @@ xfs_dir2_sf_lookup(
 								sfep->namelen);
 		if (cmp != XFS_CMP_DIFFERENT && cmp != args->cmpresult) {
 			args->cmpresult = cmp;
-			args->inumber = xfs_dir3_sfe_get_ino(dp->i_mount,
-							     sfp, sfep);
-			args->filetype = xfs_dir3_sfe_get_ftype(dp->i_mount,
-								sfp, sfep);
+			args->inumber = dp->d_ops->sf_get_ino(sfp, sfep);
+			args->filetype = dp->d_ops->sf_get_ftype(sfep);
 			if (cmp == XFS_CMP_EXACT)
 				return XFS_ERROR(EEXIST);
 			ci_sfep = sfep;
@@ -919,7 +833,7 @@ xfs_dir2_sf_removename(
 	     i++, sfep = dp->d_ops->sf_nextentry(sfp, sfep)) {
 		if (xfs_da_compname(args, sfep->name, sfep->namelen) ==
 								XFS_CMP_EXACT) {
-			ASSERT(xfs_dir3_sfe_get_ino(dp->i_mount, sfp, sfep) ==
+			ASSERT(dp->d_ops->sf_get_ino(sfp, sfep) ==
 			       args->inumber);
 			break;
 		}
@@ -1040,10 +954,10 @@ xfs_dir2_sf_replace(
 	if (args->namelen == 2 &&
 	    args->name[0] == '.' && args->name[1] == '.') {
 #if XFS_BIG_INUMS || defined(DEBUG)
-		ino = xfs_dir2_sf_get_parent_ino(sfp);
+		ino = dp->d_ops->sf_get_parent_ino(sfp);
 		ASSERT(args->inumber != ino);
 #endif
-		xfs_dir2_sf_put_parent_ino(sfp, args->inumber);
+		dp->d_ops->sf_put_parent_ino(sfp, args->inumber);
 	}
 	/*
 	 * Normal entry, look for the name.
@@ -1054,14 +968,11 @@ xfs_dir2_sf_replace(
 			if (xfs_da_compname(args, sfep->name, sfep->namelen) ==
 								XFS_CMP_EXACT) {
 #if XFS_BIG_INUMS || defined(DEBUG)
-				ino = xfs_dir3_sfe_get_ino(dp->i_mount,
-							   sfp, sfep);
+				ino = dp->d_ops->sf_get_ino(sfp, sfep);
 				ASSERT(args->inumber != ino);
 #endif
-				xfs_dir3_sfe_put_ino(dp->i_mount, sfp, sfep,
-						     args->inumber);
-				xfs_dir3_sfe_put_ftype(dp->i_mount, sfp, sfep,
-						       args->filetype);
+				dp->d_ops->sf_put_ino(sfp, sfep, args->inumber);
+				dp->d_ops->sf_put_ftype(sfep, args->filetype);
 				break;
 			}
 		}
@@ -1164,7 +1075,7 @@ xfs_dir2_sf_toino4(
 	 */
 	sfp->count = oldsfp->count;
 	sfp->i8count = 0;
-	xfs_dir2_sf_put_parent_ino(sfp, xfs_dir2_sf_get_parent_ino(oldsfp));
+	dp->d_ops->sf_put_parent_ino(sfp, dp->d_ops->sf_get_parent_ino(oldsfp));
 	/*
 	 * Copy the entries field by field.
 	 */
@@ -1176,10 +1087,9 @@ xfs_dir2_sf_toino4(
 		sfep->namelen = oldsfep->namelen;
 		sfep->offset = oldsfep->offset;
 		memcpy(sfep->name, oldsfep->name, sfep->namelen);
-		xfs_dir3_sfe_put_ino(mp, sfp, sfep,
-			xfs_dir3_sfe_get_ino(mp, oldsfp, oldsfep));
-		xfs_dir3_sfe_put_ftype(mp, sfp, sfep,
-			xfs_dir3_sfe_get_ftype(mp, oldsfp, oldsfep));
+		dp->d_ops->sf_put_ino(sfp, sfep,
+				      dp->d_ops->sf_get_ino(oldsfp, oldsfep));
+		dp->d_ops->sf_put_ftype(sfep, dp->d_ops->sf_get_ftype(oldsfep));
 	}
 	/*
 	 * Clean up the inode.
@@ -1243,7 +1153,7 @@ xfs_dir2_sf_toino8(
 	 */
 	sfp->count = oldsfp->count;
 	sfp->i8count = 1;
-	xfs_dir2_sf_put_parent_ino(sfp, xfs_dir2_sf_get_parent_ino(oldsfp));
+	dp->d_ops->sf_put_parent_ino(sfp, dp->d_ops->sf_get_parent_ino(oldsfp));
 	/*
 	 * Copy the entries field by field.
 	 */
@@ -1255,10 +1165,9 @@ xfs_dir2_sf_toino8(
 		sfep->namelen = oldsfep->namelen;
 		sfep->offset = oldsfep->offset;
 		memcpy(sfep->name, oldsfep->name, sfep->namelen);
-		xfs_dir3_sfe_put_ino(mp, sfp, sfep,
-			xfs_dir3_sfe_get_ino(mp, oldsfp, oldsfep));
-		xfs_dir3_sfe_put_ftype(mp, sfp, sfep,
-			xfs_dir3_sfe_get_ftype(mp, oldsfp, oldsfep));
+		dp->d_ops->sf_put_ino(sfp, sfep,
+				      dp->d_ops->sf_get_ino(oldsfp, oldsfep));
+		dp->d_ops->sf_put_ftype(sfep, dp->d_ops->sf_get_ftype(oldsfep));
 	}
 	/*
 	 * Clean up the inode.
-- 
cgit 


From 9d23fc8575de7012b8853bd6fefe10534665de2f Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 29 Oct 2013 22:11:48 +1100
Subject: xfs: vectorise directory data operations

Following from the initial patches to vectorise the shortform
directory encode/decode operations, convert half the data block
operations to use the vector. The rest will be done in a second
patch.

This further reduces the size of the built binary:

   text    data     bss     dec     hex filename
 794490   96802    1096  892388   d9de4 fs/xfs/xfs.o.orig
 792986   96802    1096  890884   d9804 fs/xfs/xfs.o.p1
 792350   96802    1096  890248   d9588 fs/xfs/xfs.o.p2
 789293   96802    1096  887191   d8997 fs/xfs/xfs.o.p3

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_da_format.c    | 218 +++++++++++++++++++++++++++++++++++++++++++++-
 fs/xfs/xfs_da_format.h    | 123 --------------------------
 fs/xfs/xfs_dir2.h         |  22 ++++-
 fs/xfs/xfs_dir2_block.c   |  54 ++++++------
 fs/xfs/xfs_dir2_data.c    |  38 +++++---
 fs/xfs/xfs_dir2_leaf.c    |  22 ++---
 fs/xfs/xfs_dir2_node.c    |  23 ++---
 fs/xfs/xfs_dir2_readdir.c |  14 +--
 fs/xfs/xfs_dir2_sf.c      |  20 ++---
 9 files changed, 329 insertions(+), 205 deletions(-)

diff --git a/fs/xfs/xfs_da_format.c b/fs/xfs/xfs_da_format.c
index 62f55a0186ae..d0285fdfb6e7 100644
--- a/fs/xfs/xfs_da_format.c
+++ b/fs/xfs/xfs_da_format.c
@@ -28,7 +28,9 @@
 #include "xfs_inode.h"
 #include "xfs_dir2.h"
 
-
+/*
+ * Shortform directory ops
+ */
 static int
 xfs_dir2_sf_entsize(
 	struct xfs_dir2_sf_hdr	*hdr,
@@ -203,6 +205,184 @@ xfs_dir3_sfe_put_ino(
 			(xfs_dir2_inou_t *)&sfep->name[sfep->namelen + 1], ino);
 }
 
+
+/*
+ * Directory data block operations
+ */
+static int
+__xfs_dir3_data_entsize(
+	bool	ftype,
+	int	n)
+{
+	int	size = offsetof(struct xfs_dir2_data_entry, name[0]);
+
+	size += n;
+	size += sizeof(xfs_dir2_data_off_t);
+	if (ftype)
+		size += sizeof(__uint8_t);
+	return roundup(size, XFS_DIR2_DATA_ALIGN);
+}
+
+static int
+xfs_dir2_data_entsize(
+	int			n)
+{
+	return __xfs_dir3_data_entsize(false, n);
+}
+static int
+xfs_dir3_data_entsize(
+	int			n)
+{
+	return __xfs_dir3_data_entsize(true, n);
+}
+
+static __uint8_t
+xfs_dir2_data_get_ftype(
+	struct xfs_dir2_data_entry *dep)
+{
+	return XFS_DIR3_FT_UNKNOWN;
+}
+
+static void
+xfs_dir2_data_put_ftype(
+	struct xfs_dir2_data_entry *dep,
+	__uint8_t		ftype)
+{
+	ASSERT(ftype < XFS_DIR3_FT_MAX);
+}
+
+static __uint8_t
+xfs_dir3_data_get_ftype(
+	struct xfs_dir2_data_entry *dep)
+{
+	__uint8_t	ftype = dep->name[dep->namelen];
+
+	ASSERT(ftype < XFS_DIR3_FT_MAX);
+	if (ftype >= XFS_DIR3_FT_MAX)
+		return XFS_DIR3_FT_UNKNOWN;
+	return ftype;
+}
+
+static void
+xfs_dir3_data_put_ftype(
+	struct xfs_dir2_data_entry *dep,
+	__uint8_t		type)
+{
+	ASSERT(type < XFS_DIR3_FT_MAX);
+	ASSERT(dep->namelen != 0);
+
+	dep->name[dep->namelen] = type;
+}
+
+/*
+ * Pointer to an entry's tag word.
+ */
+static __be16 *
+xfs_dir2_data_entry_tag_p(
+	struct xfs_dir2_data_entry *dep)
+{
+	return (__be16 *)((char *)dep +
+		xfs_dir2_data_entsize(dep->namelen) - sizeof(__be16));
+}
+
+static __be16 *
+xfs_dir3_data_entry_tag_p(
+	struct xfs_dir2_data_entry *dep)
+{
+	return (__be16 *)((char *)dep +
+		xfs_dir3_data_entsize(dep->namelen) - sizeof(__be16));
+}
+
+/*
+ * Offsets of . and .. in data space (always block 0)
+ */
+static xfs_dir2_data_aoff_t
+xfs_dir2_data_dot_offset(void)
+{
+	return sizeof(struct xfs_dir2_data_hdr);
+}
+
+static xfs_dir2_data_aoff_t
+xfs_dir2_data_dotdot_offset(void)
+{
+	return xfs_dir2_data_dot_offset() + xfs_dir2_data_entsize(1);
+}
+
+static xfs_dir2_data_aoff_t
+xfs_dir2_data_first_offset(void)
+{
+	return xfs_dir2_data_dotdot_offset() + xfs_dir2_data_entsize(2);
+}
+
+static xfs_dir2_data_aoff_t
+xfs_dir3_data_dot_offset(void)
+{
+	return sizeof(struct xfs_dir3_data_hdr);
+}
+
+static xfs_dir2_data_aoff_t
+xfs_dir3_data_dotdot_offset(void)
+{
+	return xfs_dir3_data_dot_offset() + xfs_dir3_data_entsize(1);
+}
+
+static xfs_dir2_data_aoff_t
+xfs_dir3_data_first_offset(void)
+{
+	return xfs_dir3_data_dotdot_offset() + xfs_dir3_data_entsize(2);
+}
+
+/*
+ * location of . and .. in data space (always block 0)
+ */
+static struct xfs_dir2_data_entry *
+xfs_dir2_data_dot_entry_p(
+	struct xfs_dir2_data_hdr *hdr)
+{
+	return (struct xfs_dir2_data_entry *)
+		((char *)hdr + xfs_dir2_data_dot_offset());
+}
+
+static struct xfs_dir2_data_entry *
+xfs_dir2_data_dotdot_entry_p(
+	struct xfs_dir2_data_hdr *hdr)
+{
+	return (struct xfs_dir2_data_entry *)
+		((char *)hdr + xfs_dir2_data_dotdot_offset());
+}
+
+static struct xfs_dir2_data_entry *
+xfs_dir2_data_first_entry_p(
+	struct xfs_dir2_data_hdr *hdr)
+{
+	return (struct xfs_dir2_data_entry *)
+		((char *)hdr + xfs_dir2_data_first_offset());
+}
+
+static struct xfs_dir2_data_entry *
+xfs_dir3_data_dot_entry_p(
+	struct xfs_dir2_data_hdr *hdr)
+{
+	return (struct xfs_dir2_data_entry *)
+		((char *)hdr + xfs_dir3_data_dot_offset());
+}
+
+static struct xfs_dir2_data_entry *
+xfs_dir3_data_dotdot_entry_p(
+	struct xfs_dir2_data_hdr *hdr)
+{
+	return (struct xfs_dir2_data_entry *)
+		((char *)hdr + xfs_dir3_data_dotdot_offset());
+}
+
+static struct xfs_dir2_data_entry *
+xfs_dir3_data_first_entry_p(
+	struct xfs_dir2_data_hdr *hdr)
+{
+	return (struct xfs_dir2_data_entry *)
+		((char *)hdr + xfs_dir3_data_first_offset());
+}
+
 const struct xfs_dir_ops xfs_dir2_ops = {
 	.sf_entsize = xfs_dir2_sf_entsize,
 	.sf_nextentry = xfs_dir2_sf_nextentry,
@@ -212,6 +392,18 @@ const struct xfs_dir_ops xfs_dir2_ops = {
 	.sf_put_ino = xfs_dir2_sfe_put_ino,
 	.sf_get_parent_ino = xfs_dir2_sf_get_parent_ino,
 	.sf_put_parent_ino = xfs_dir2_sf_put_parent_ino,
+
+	.data_entsize = xfs_dir2_data_entsize,
+	.data_get_ftype = xfs_dir2_data_get_ftype,
+	.data_put_ftype = xfs_dir2_data_put_ftype,
+	.data_entry_tag_p = xfs_dir2_data_entry_tag_p,
+
+	.data_dot_offset = xfs_dir2_data_dot_offset,
+	.data_dotdot_offset = xfs_dir2_data_dotdot_offset,
+	.data_first_offset = xfs_dir2_data_first_offset,
+	.data_dot_entry_p = xfs_dir2_data_dot_entry_p,
+	.data_dotdot_entry_p = xfs_dir2_data_dotdot_entry_p,
+	.data_first_entry_p = xfs_dir2_data_first_entry_p,
 };
 
 const struct xfs_dir_ops xfs_dir2_ftype_ops = {
@@ -223,6 +415,18 @@ const struct xfs_dir_ops xfs_dir2_ftype_ops = {
 	.sf_put_ino = xfs_dir3_sfe_put_ino,
 	.sf_get_parent_ino = xfs_dir2_sf_get_parent_ino,
 	.sf_put_parent_ino = xfs_dir2_sf_put_parent_ino,
+
+	.data_entsize = xfs_dir3_data_entsize,
+	.data_get_ftype = xfs_dir3_data_get_ftype,
+	.data_put_ftype = xfs_dir3_data_put_ftype,
+	.data_entry_tag_p = xfs_dir3_data_entry_tag_p,
+
+	.data_dot_offset = xfs_dir2_data_dot_offset,
+	.data_dotdot_offset = xfs_dir2_data_dotdot_offset,
+	.data_first_offset = xfs_dir2_data_first_offset,
+	.data_dot_entry_p = xfs_dir2_data_dot_entry_p,
+	.data_dotdot_entry_p = xfs_dir2_data_dotdot_entry_p,
+	.data_first_entry_p = xfs_dir2_data_first_entry_p,
 };
 
 const struct xfs_dir_ops xfs_dir3_ops = {
@@ -234,4 +438,16 @@ const struct xfs_dir_ops xfs_dir3_ops = {
 	.sf_put_ino = xfs_dir3_sfe_put_ino,
 	.sf_get_parent_ino = xfs_dir2_sf_get_parent_ino,
 	.sf_put_parent_ino = xfs_dir2_sf_put_parent_ino,
+
+	.data_entsize = xfs_dir3_data_entsize,
+	.data_get_ftype = xfs_dir3_data_get_ftype,
+	.data_put_ftype = xfs_dir3_data_put_ftype,
+	.data_entry_tag_p = xfs_dir3_data_entry_tag_p,
+
+	.data_dot_offset = xfs_dir3_data_dot_offset,
+	.data_dotdot_offset = xfs_dir3_data_dotdot_offset,
+	.data_first_offset = xfs_dir3_data_first_offset,
+	.data_dot_entry_p = xfs_dir3_data_dot_entry_p,
+	.data_dotdot_entry_p = xfs_dir3_data_dotdot_entry_p,
+	.data_first_entry_p = xfs_dir3_data_first_entry_p,
 };
diff --git a/fs/xfs/xfs_da_format.h b/fs/xfs/xfs_da_format.h
index 68c2ad5ba54f..5b72dd2f8a69 100644
--- a/fs/xfs/xfs_da_format.h
+++ b/fs/xfs/xfs_da_format.h
@@ -455,72 +455,6 @@ typedef struct xfs_dir2_data_unused {
 	__be16			tag;		/* starting offset of us */
 } xfs_dir2_data_unused_t;
 
-/*
- * Size of a data entry.
- */
-static inline int
-__xfs_dir3_data_entsize(
-	bool	ftype,
-	int	n)
-{
-	int	size = offsetof(struct xfs_dir2_data_entry, name[0]);
-
-	size += n;
-	size += sizeof(xfs_dir2_data_off_t);
-	if (ftype)
-		size += sizeof(__uint8_t);
-	return roundup(size, XFS_DIR2_DATA_ALIGN);
-}
-static inline int
-xfs_dir3_data_entsize(
-	struct xfs_mount	*mp,
-	int			n)
-{
-	bool ftype = xfs_sb_version_hasftype(&mp->m_sb) ? true : false;
-	return __xfs_dir3_data_entsize(ftype, n);
-}
-
-static inline __uint8_t
-xfs_dir3_dirent_get_ftype(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_data_entry *dep)
-{
-	if (xfs_sb_version_hasftype(&mp->m_sb)) {
-		__uint8_t	type = dep->name[dep->namelen];
-
-		ASSERT(type < XFS_DIR3_FT_MAX);
-		if (type < XFS_DIR3_FT_MAX)
-			return type;
-
-	}
-	return XFS_DIR3_FT_UNKNOWN;
-}
-
-static inline void
-xfs_dir3_dirent_put_ftype(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_data_entry *dep,
-	__uint8_t		type)
-{
-	ASSERT(type < XFS_DIR3_FT_MAX);
-	ASSERT(dep->namelen != 0);
-
-	if (xfs_sb_version_hasftype(&mp->m_sb))
-		dep->name[dep->namelen] = type;
-}
-
-/*
- * Pointer to an entry's tag word.
- */
-static inline __be16 *
-xfs_dir3_data_entry_tag_p(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_data_entry *dep)
-{
-	return (__be16 *)((char *)dep +
-		xfs_dir3_data_entsize(mp, dep->namelen) - sizeof(__be16));
-}
-
 /*
  * Pointer to a freespace's tag word.
  */
@@ -561,63 +495,6 @@ xfs_dir3_data_unused_p(struct xfs_dir2_data_hdr *hdr)
 		((char *)hdr + xfs_dir3_data_entry_offset(hdr));
 }
 
-/*
- * Offsets of . and .. in data space (always block 0)
- *
- * XXX: there is scope for significant optimisation of the logic here. Right
- * now we are checking for "dir3 format" over and over again. Ideally we should
- * only do it once for each operation.
- */
-static inline xfs_dir2_data_aoff_t
-xfs_dir3_data_dot_offset(struct xfs_mount *mp)
-{
-	return xfs_dir3_data_hdr_size(xfs_sb_version_hascrc(&mp->m_sb));
-}
-
-static inline xfs_dir2_data_aoff_t
-xfs_dir3_data_dotdot_offset(struct xfs_mount *mp)
-{
-	return xfs_dir3_data_dot_offset(mp) +
-		xfs_dir3_data_entsize(mp, 1);
-}
-
-static inline xfs_dir2_data_aoff_t
-xfs_dir3_data_first_offset(struct xfs_mount *mp)
-{
-	return xfs_dir3_data_dotdot_offset(mp) +
-		xfs_dir3_data_entsize(mp, 2);
-}
-
-/*
- * location of . and .. in data space (always block 0)
- */
-static inline struct xfs_dir2_data_entry *
-xfs_dir3_data_dot_entry_p(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_data_hdr *hdr)
-{
-	return (struct xfs_dir2_data_entry *)
-		((char *)hdr + xfs_dir3_data_dot_offset(mp));
-}
-
-static inline struct xfs_dir2_data_entry *
-xfs_dir3_data_dotdot_entry_p(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_data_hdr *hdr)
-{
-	return (struct xfs_dir2_data_entry *)
-		((char *)hdr + xfs_dir3_data_dotdot_offset(mp));
-}
-
-static inline struct xfs_dir2_data_entry *
-xfs_dir3_data_first_entry_p(
-	struct xfs_mount	*mp,
-	struct xfs_dir2_data_hdr *hdr)
-{
-	return (struct xfs_dir2_data_entry *)
-		((char *)hdr + xfs_dir3_data_first_offset(mp));
-}
-
 /*
  * Leaf block structures.
  *
diff --git a/fs/xfs/xfs_dir2.h b/fs/xfs/xfs_dir2.h
index 0e94b3e662af..c0a45923cce0 100644
--- a/fs/xfs/xfs_dir2.h
+++ b/fs/xfs/xfs_dir2.h
@@ -50,6 +50,22 @@ struct xfs_dir_ops {
 	xfs_ino_t (*sf_get_parent_ino)(struct xfs_dir2_sf_hdr *hdr);
 	void	(*sf_put_parent_ino)(struct xfs_dir2_sf_hdr *hdr,
 				     xfs_ino_t ino);
+
+	int	(*data_entsize)(int len);
+	__uint8_t (*data_get_ftype)(struct xfs_dir2_data_entry *dep);
+	void	(*data_put_ftype)(struct xfs_dir2_data_entry *dep,
+				__uint8_t ftype);
+	__be16 * (*data_entry_tag_p)(struct xfs_dir2_data_entry *dep);
+
+	xfs_dir2_data_aoff_t (*data_dot_offset)(void);
+	xfs_dir2_data_aoff_t (*data_dotdot_offset)(void);
+	xfs_dir2_data_aoff_t (*data_first_offset)(void);
+	struct xfs_dir2_data_entry *
+		(*data_dot_entry_p)(struct xfs_dir2_data_hdr *hdr);
+	struct xfs_dir2_data_entry *
+		(*data_dotdot_entry_p)(struct xfs_dir2_data_hdr *hdr);
+	struct xfs_dir2_data_entry *
+		(*data_first_entry_p)(struct xfs_dir2_data_hdr *hdr);
 };
 
 extern const struct xfs_dir_ops xfs_dir2_ops;
@@ -95,10 +111,10 @@ extern int xfs_dir2_isleaf(struct xfs_trans *tp, struct xfs_inode *dp, int *r);
 extern int xfs_dir2_shrink_inode(struct xfs_da_args *args, xfs_dir2_db_t db,
 				struct xfs_buf *bp);
 
-extern void xfs_dir2_data_freescan(struct xfs_mount *mp,
+extern void xfs_dir2_data_freescan(struct xfs_inode *dp,
 		struct xfs_dir2_data_hdr *hdr, int *loghead);
-extern void xfs_dir2_data_log_entry(struct xfs_trans *tp, struct xfs_buf *bp,
-		struct xfs_dir2_data_entry *dep);
+extern void xfs_dir2_data_log_entry(struct xfs_trans *tp, struct xfs_inode *dp,
+		struct xfs_buf *bp, struct xfs_dir2_data_entry *dep);
 extern void xfs_dir2_data_log_header(struct xfs_trans *tp,
 		struct xfs_buf *bp);
 extern void xfs_dir2_data_log_unused(struct xfs_trans *tp, struct xfs_buf *bp,
diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c
index 960f3ab526f6..507ef6a7d1f9 100644
--- a/fs/xfs/xfs_dir2_block.c
+++ b/fs/xfs/xfs_dir2_block.c
@@ -280,6 +280,7 @@ out:
 static void
 xfs_dir2_block_compact(
 	struct xfs_trans		*tp,
+	struct xfs_inode		*dp,
 	struct xfs_buf			*bp,
 	struct xfs_dir2_data_hdr	*hdr,
 	struct xfs_dir2_block_tail	*btp,
@@ -323,7 +324,7 @@ xfs_dir2_block_compact(
 	 * This needs to happen before the next call to use_free.
 	 */
 	if (needscan)
-		xfs_dir2_data_freescan(tp->t_mountp, hdr, needlog);
+		xfs_dir2_data_freescan(dp, hdr, needlog);
 }
 
 /*
@@ -369,7 +370,7 @@ xfs_dir2_block_addname(
 	if (error)
 		return error;
 
-	len = xfs_dir3_data_entsize(mp, args->namelen);
+	len = dp->d_ops->data_entsize(args->namelen);
 
 	/*
 	 * Set up pointers to parts of the block.
@@ -418,7 +419,7 @@ xfs_dir2_block_addname(
 	 * If need to compact the leaf entries, do it now.
 	 */
 	if (compact) {
-		xfs_dir2_block_compact(tp, bp, hdr, btp, blp, &needlog,
+		xfs_dir2_block_compact(tp, dp, bp, hdr, btp, blp, &needlog,
 				      &lfloghigh, &lfloglow);
 		/* recalculate blp post-compaction */
 		blp = xfs_dir2_block_leaf_p(btp);
@@ -468,7 +469,7 @@ xfs_dir2_block_addname(
 		 * This needs to happen before the next call to use_free.
 		 */
 		if (needscan) {
-			xfs_dir2_data_freescan(mp, hdr, &needlog);
+			xfs_dir2_data_freescan(dp, hdr, &needlog);
 			needscan = 0;
 		}
 		/*
@@ -549,18 +550,18 @@ xfs_dir2_block_addname(
 	dep->inumber = cpu_to_be64(args->inumber);
 	dep->namelen = args->namelen;
 	memcpy(dep->name, args->name, args->namelen);
-	xfs_dir3_dirent_put_ftype(mp, dep, args->filetype);
-	tagp = xfs_dir3_data_entry_tag_p(mp, dep);
+	dp->d_ops->data_put_ftype(dep, args->filetype);
+	tagp = dp->d_ops->data_entry_tag_p(dep);
 	*tagp = cpu_to_be16((char *)dep - (char *)hdr);
 	/*
 	 * Clean up the bestfree array and log the header, tail, and entry.
 	 */
 	if (needscan)
-		xfs_dir2_data_freescan(mp, hdr, &needlog);
+		xfs_dir2_data_freescan(dp, hdr, &needlog);
 	if (needlog)
 		xfs_dir2_data_log_header(tp, bp);
 	xfs_dir2_block_log_tail(tp, bp);
-	xfs_dir2_data_log_entry(tp, bp, dep);
+	xfs_dir2_data_log_entry(tp, dp, bp, dep);
 	xfs_dir3_data_check(dp, bp);
 	return 0;
 }
@@ -642,7 +643,7 @@ xfs_dir2_block_lookup(
 	 * Fill in inode number, CI name if appropriate, release the block.
 	 */
 	args->inumber = be64_to_cpu(dep->inumber);
-	args->filetype = xfs_dir3_dirent_get_ftype(mp, dep);
+	args->filetype = dp->d_ops->data_get_ftype(dep);
 	error = xfs_dir_cilookup_result(args, dep->name, dep->namelen);
 	xfs_trans_brelse(args->trans, bp);
 	return XFS_ERROR(error);
@@ -801,7 +802,7 @@ xfs_dir2_block_removename(
 	needlog = needscan = 0;
 	xfs_dir2_data_make_free(tp, bp,
 		(xfs_dir2_data_aoff_t)((char *)dep - (char *)hdr),
-		xfs_dir3_data_entsize(mp, dep->namelen), &needlog, &needscan);
+		dp->d_ops->data_entsize(dep->namelen), &needlog, &needscan);
 	/*
 	 * Fix up the block tail.
 	 */
@@ -816,7 +817,7 @@ xfs_dir2_block_removename(
 	 * Fix up bestfree, log the header if necessary.
 	 */
 	if (needscan)
-		xfs_dir2_data_freescan(mp, hdr, &needlog);
+		xfs_dir2_data_freescan(dp, hdr, &needlog);
 	if (needlog)
 		xfs_dir2_data_log_header(tp, bp);
 	xfs_dir3_data_check(dp, bp);
@@ -875,8 +876,8 @@ xfs_dir2_block_replace(
 	 * Change the inode number to the new value.
 	 */
 	dep->inumber = cpu_to_be64(args->inumber);
-	xfs_dir3_dirent_put_ftype(mp, dep, args->filetype);
-	xfs_dir2_data_log_entry(args->trans, bp, dep);
+	dp->d_ops->data_put_ftype(dep, args->filetype);
+	xfs_dir2_data_log_entry(args->trans, dp, bp, dep);
 	xfs_dir3_data_check(dp, bp);
 	return 0;
 }
@@ -1023,7 +1024,7 @@ xfs_dir2_leaf_to_block(
 	 * Scan the bestfree if we need it and log the data block header.
 	 */
 	if (needscan)
-		xfs_dir2_data_freescan(mp, hdr, &needlog);
+		xfs_dir2_data_freescan(dp, hdr, &needlog);
 	if (needlog)
 		xfs_dir2_data_log_header(tp, dbp);
 	/*
@@ -1158,32 +1159,32 @@ xfs_dir2_sf_to_block(
 	/*
 	 * Create entry for .
 	 */
-	dep = xfs_dir3_data_dot_entry_p(mp, hdr);
+	dep = dp->d_ops->data_dot_entry_p(hdr);
 	dep->inumber = cpu_to_be64(dp->i_ino);
 	dep->namelen = 1;
 	dep->name[0] = '.';
-	xfs_dir3_dirent_put_ftype(mp, dep, XFS_DIR3_FT_DIR);
-	tagp = xfs_dir3_data_entry_tag_p(mp, dep);
+	dp->d_ops->data_put_ftype(dep, XFS_DIR3_FT_DIR);
+	tagp = dp->d_ops->data_entry_tag_p(dep);
 	*tagp = cpu_to_be16((char *)dep - (char *)hdr);
-	xfs_dir2_data_log_entry(tp, bp, dep);
+	xfs_dir2_data_log_entry(tp, dp, bp, dep);
 	blp[0].hashval = cpu_to_be32(xfs_dir_hash_dot);
 	blp[0].address = cpu_to_be32(xfs_dir2_byte_to_dataptr(mp,
 				(char *)dep - (char *)hdr));
 	/*
 	 * Create entry for ..
 	 */
-	dep = xfs_dir3_data_dotdot_entry_p(mp, hdr);
+	dep = dp->d_ops->data_dotdot_entry_p(hdr);
 	dep->inumber = cpu_to_be64(dp->d_ops->sf_get_parent_ino(sfp));
 	dep->namelen = 2;
 	dep->name[0] = dep->name[1] = '.';
-	xfs_dir3_dirent_put_ftype(mp, dep, XFS_DIR3_FT_DIR);
-	tagp = xfs_dir3_data_entry_tag_p(mp, dep);
+	dp->d_ops->data_put_ftype(dep, XFS_DIR3_FT_DIR);
+	tagp = dp->d_ops->data_entry_tag_p(dep);
 	*tagp = cpu_to_be16((char *)dep - (char *)hdr);
-	xfs_dir2_data_log_entry(tp, bp, dep);
+	xfs_dir2_data_log_entry(tp, dp, bp, dep);
 	blp[1].hashval = cpu_to_be32(xfs_dir_hash_dotdot);
 	blp[1].address = cpu_to_be32(xfs_dir2_byte_to_dataptr(mp,
 				(char *)dep - (char *)hdr));
-	offset = xfs_dir3_data_first_offset(mp);
+	offset = dp->d_ops->data_first_offset();
 	/*
 	 * Loop over existing entries, stuff them in.
 	 */
@@ -1224,12 +1225,11 @@ xfs_dir2_sf_to_block(
 		dep = (xfs_dir2_data_entry_t *)((char *)hdr + newoffset);
 		dep->inumber = cpu_to_be64(dp->d_ops->sf_get_ino(sfp, sfep));
 		dep->namelen = sfep->namelen;
-		xfs_dir3_dirent_put_ftype(mp, dep,
-					  dp->d_ops->sf_get_ftype(sfep));
+		dp->d_ops->data_put_ftype(dep, dp->d_ops->sf_get_ftype(sfep));
 		memcpy(dep->name, sfep->name, dep->namelen);
-		tagp = xfs_dir3_data_entry_tag_p(mp, dep);
+		tagp = dp->d_ops->data_entry_tag_p(dep);
 		*tagp = cpu_to_be16((char *)dep - (char *)hdr);
-		xfs_dir2_data_log_entry(tp, bp, dep);
+		xfs_dir2_data_log_entry(tp, dp, bp, dep);
 		name.name = sfep->name;
 		name.len = sfep->namelen;
 		blp[2 + i].hashval = cpu_to_be32(mp->m_dirnameops->
diff --git a/fs/xfs/xfs_dir2_data.c b/fs/xfs/xfs_dir2_data.c
index ccfeb4d8376a..00006b3db054 100644
--- a/fs/xfs/xfs_dir2_data.c
+++ b/fs/xfs/xfs_dir2_data.c
@@ -62,12 +62,26 @@ __xfs_dir3_data_check(
 	char			*p;		/* current data position */
 	int			stale;		/* count of stale leaves */
 	struct xfs_name		name;
+	const struct xfs_dir_ops *ops;
 
 	mp = bp->b_target->bt_mount;
 	hdr = bp->b_addr;
 	bf = xfs_dir3_data_bestfree_p(hdr);
 	p = (char *)xfs_dir3_data_entry_p(hdr);
 
+	/*
+	 * We can be passed a null dp here from a verifier, so manually
+	 * configure the ops here in that case.
+	 */
+	if (dp)
+		ops = dp->d_ops;
+	else if (xfs_sb_version_hascrc(&mp->m_sb))
+		ops = &xfs_dir3_ops;
+	else if (xfs_sb_version_hasftype(&mp->m_sb))
+		ops = &xfs_dir2_ftype_ops;
+	else
+		ops = &xfs_dir2_ops;
+
 	switch (hdr->magic) {
 	case cpu_to_be32(XFS_DIR3_BLOCK_MAGIC):
 	case cpu_to_be32(XFS_DIR2_BLOCK_MAGIC):
@@ -146,10 +160,10 @@ __xfs_dir3_data_check(
 		XFS_WANT_CORRUPTED_RETURN(
 			!xfs_dir_ino_validate(mp, be64_to_cpu(dep->inumber)));
 		XFS_WANT_CORRUPTED_RETURN(
-			be16_to_cpu(*xfs_dir3_data_entry_tag_p(mp, dep)) ==
+			be16_to_cpu(*ops->data_entry_tag_p(dep)) ==
 					       (char *)dep - (char *)hdr);
 		XFS_WANT_CORRUPTED_RETURN(
-			xfs_dir3_dirent_get_ftype(mp, dep) < XFS_DIR3_FT_MAX);
+				ops->data_get_ftype(dep) < XFS_DIR3_FT_MAX);
 		count++;
 		lastfree = 0;
 		if (hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC) ||
@@ -167,7 +181,7 @@ __xfs_dir3_data_check(
 			}
 			XFS_WANT_CORRUPTED_RETURN(i < be32_to_cpu(btp->count));
 		}
-		p += xfs_dir3_data_entsize(mp, dep->namelen);
+		p += ops->data_entsize(dep->namelen);
 	}
 	/*
 	 * Need to have seen all the entries and all the bestfree slots.
@@ -485,9 +499,9 @@ xfs_dir2_data_freeremove(
  */
 void
 xfs_dir2_data_freescan(
-	xfs_mount_t		*mp,		/* filesystem mount point */
-	xfs_dir2_data_hdr_t	*hdr,		/* data block header */
-	int			*loghead)	/* out: log data header */
+	struct xfs_inode	*dp,
+	struct xfs_dir2_data_hdr *hdr,
+	int			*loghead)
 {
 	xfs_dir2_block_tail_t	*btp;		/* block tail */
 	xfs_dir2_data_entry_t	*dep;		/* active data entry */
@@ -513,10 +527,10 @@ xfs_dir2_data_freescan(
 	p = (char *)xfs_dir3_data_entry_p(hdr);
 	if (hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC) ||
 	    hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC)) {
-		btp = xfs_dir2_block_tail_p(mp, hdr);
+		btp = xfs_dir2_block_tail_p(dp->i_mount, hdr);
 		endp = (char *)xfs_dir2_block_leaf_p(btp);
 	} else
-		endp = (char *)hdr + mp->m_dirblksize;
+		endp = (char *)hdr + dp->i_mount->m_dirblksize;
 	/*
 	 * Loop over the block's entries.
 	 */
@@ -537,8 +551,8 @@ xfs_dir2_data_freescan(
 		else {
 			dep = (xfs_dir2_data_entry_t *)p;
 			ASSERT((char *)dep - (char *)hdr ==
-			       be16_to_cpu(*xfs_dir3_data_entry_tag_p(mp, dep)));
-			p += xfs_dir3_data_entsize(mp, dep->namelen);
+			       be16_to_cpu(*dp->d_ops->data_entry_tag_p(dep)));
+			p += dp->d_ops->data_entsize(dep->namelen);
 		}
 	}
 }
@@ -625,11 +639,11 @@ xfs_dir3_data_init(
 void
 xfs_dir2_data_log_entry(
 	struct xfs_trans	*tp,
+	struct xfs_inode	*dp,
 	struct xfs_buf		*bp,
 	xfs_dir2_data_entry_t	*dep)		/* data entry pointer */
 {
 	struct xfs_dir2_data_hdr *hdr = bp->b_addr;
-	struct xfs_mount	*mp = tp->t_mountp;
 
 	ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) ||
 	       hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) ||
@@ -637,7 +651,7 @@ xfs_dir2_data_log_entry(
 	       hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC));
 
 	xfs_trans_log_buf(tp, bp, (uint)((char *)dep - (char *)hdr),
-		(uint)((char *)(xfs_dir3_data_entry_tag_p(mp, dep) + 1) -
+		(uint)((char *)(dp->d_ops->data_entry_tag_p(dep) + 1) -
 		       (char *)hdr - 1));
 }
 
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
index 51fdc11a1e2c..dd195363ccf2 100644
--- a/fs/xfs/xfs_dir2_leaf.c
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -500,7 +500,7 @@ xfs_dir2_block_to_leaf(
 		hdr->magic = cpu_to_be32(XFS_DIR3_DATA_MAGIC);
 
 	if (needscan)
-		xfs_dir2_data_freescan(mp, hdr, &needlog);
+		xfs_dir2_data_freescan(dp, hdr, &needlog);
 	/*
 	 * Set up leaf tail and bests table.
 	 */
@@ -700,7 +700,7 @@ xfs_dir2_leaf_addname(
 	ents = xfs_dir3_leaf_ents_p(leaf);
 	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
 	bestsp = xfs_dir2_leaf_bests_p(ltp);
-	length = xfs_dir3_data_entsize(mp, args->namelen);
+	length = dp->d_ops->data_entsize(args->namelen);
 
 	/*
 	 * See if there are any entries with the same hash value
@@ -901,20 +901,20 @@ xfs_dir2_leaf_addname(
 	dep->inumber = cpu_to_be64(args->inumber);
 	dep->namelen = args->namelen;
 	memcpy(dep->name, args->name, dep->namelen);
-	xfs_dir3_dirent_put_ftype(mp, dep, args->filetype);
-	tagp = xfs_dir3_data_entry_tag_p(mp, dep);
+	dp->d_ops->data_put_ftype(dep, args->filetype);
+	tagp = dp->d_ops->data_entry_tag_p(dep);
 	*tagp = cpu_to_be16((char *)dep - (char *)hdr);
 	/*
 	 * Need to scan fix up the bestfree table.
 	 */
 	if (needscan)
-		xfs_dir2_data_freescan(mp, hdr, &needlog);
+		xfs_dir2_data_freescan(dp, hdr, &needlog);
 	/*
 	 * Need to log the data block's header.
 	 */
 	if (needlog)
 		xfs_dir2_data_log_header(tp, dbp);
-	xfs_dir2_data_log_entry(tp, dbp, dep);
+	xfs_dir2_data_log_entry(tp, dp, dbp, dep);
 	/*
 	 * If the bests table needs to be changed, do it.
 	 * Log the change unless we've already done that.
@@ -1230,7 +1230,7 @@ xfs_dir2_leaf_lookup(
 	 * Return the found inode number & CI name if appropriate
 	 */
 	args->inumber = be64_to_cpu(dep->inumber);
-	args->filetype = xfs_dir3_dirent_get_ftype(dp->i_mount, dep);
+	args->filetype = dp->d_ops->data_get_ftype(dep);
 	error = xfs_dir_cilookup_result(args, dep->name, dep->namelen);
 	xfs_trans_brelse(tp, dbp);
 	xfs_trans_brelse(tp, lbp);
@@ -1433,7 +1433,7 @@ xfs_dir2_leaf_removename(
 	 */
 	xfs_dir2_data_make_free(tp, dbp,
 		(xfs_dir2_data_aoff_t)((char *)dep - (char *)hdr),
-		xfs_dir3_data_entsize(mp, dep->namelen), &needlog, &needscan);
+		dp->d_ops->data_entsize(dep->namelen), &needlog, &needscan);
 	/*
 	 * We just mark the leaf entry stale by putting a null in it.
 	 */
@@ -1449,7 +1449,7 @@ xfs_dir2_leaf_removename(
 	 * log the data block header if necessary.
 	 */
 	if (needscan)
-		xfs_dir2_data_freescan(mp, hdr, &needlog);
+		xfs_dir2_data_freescan(dp, hdr, &needlog);
 	if (needlog)
 		xfs_dir2_data_log_header(tp, dbp);
 	/*
@@ -1561,9 +1561,9 @@ xfs_dir2_leaf_replace(
 	 * Put the new inode number in, log it.
 	 */
 	dep->inumber = cpu_to_be64(args->inumber);
-	xfs_dir3_dirent_put_ftype(dp->i_mount, dep, args->filetype);
+	dp->d_ops->data_put_ftype(dep, args->filetype);
 	tp = args->trans;
-	xfs_dir2_data_log_entry(tp, dbp, dep);
+	xfs_dir2_data_log_entry(tp, dp, dbp, dep);
 	xfs_dir3_leaf_check(dp->i_mount, lbp);
 	xfs_trans_brelse(tp, lbp);
 	return 0;
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index b8381646b8af..a1d133981c14 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -604,7 +604,7 @@ xfs_dir2_leafn_lookup_for_addname(
 		ASSERT(free->hdr.magic == cpu_to_be32(XFS_DIR2_FREE_MAGIC) ||
 		       free->hdr.magic == cpu_to_be32(XFS_DIR3_FREE_MAGIC));
 	}
-	length = xfs_dir3_data_entsize(mp, args->namelen);
+	length = dp->d_ops->data_entsize(args->namelen);
 	/*
 	 * Loop over leaf entries with the right hash value.
 	 */
@@ -815,7 +815,7 @@ xfs_dir2_leafn_lookup_for_entry(
 				xfs_trans_brelse(tp, state->extrablk.bp);
 			args->cmpresult = cmp;
 			args->inumber = be64_to_cpu(dep->inumber);
-			args->filetype = xfs_dir3_dirent_get_ftype(mp, dep);
+			args->filetype = dp->d_ops->data_get_ftype(dep);
 			*indexp = index;
 			state->extravalid = 1;
 			state->extrablk.bp = curbp;
@@ -1259,13 +1259,13 @@ xfs_dir2_leafn_remove(
 	longest = be16_to_cpu(bf[0].length);
 	needlog = needscan = 0;
 	xfs_dir2_data_make_free(tp, dbp, off,
-		xfs_dir3_data_entsize(mp, dep->namelen), &needlog, &needscan);
+		dp->d_ops->data_entsize(dep->namelen), &needlog, &needscan);
 	/*
 	 * Rescan the data block freespaces for bestfree.
 	 * Log the data block header if needed.
 	 */
 	if (needscan)
-		xfs_dir2_data_freescan(mp, hdr, &needlog);
+		xfs_dir2_data_freescan(dp, hdr, &needlog);
 	if (needlog)
 		xfs_dir2_data_log_header(tp, dbp);
 	xfs_dir3_data_check(dp, dbp);
@@ -1711,7 +1711,7 @@ xfs_dir2_node_addname_int(
 	dp = args->dp;
 	mp = dp->i_mount;
 	tp = args->trans;
-	length = xfs_dir3_data_entsize(mp, args->namelen);
+	length = dp->d_ops->data_entsize(args->namelen);
 	/*
 	 * If we came in with a freespace block that means that lookup
 	 * found an entry with our hash value.  This is the freespace
@@ -2007,15 +2007,15 @@ xfs_dir2_node_addname_int(
 	dep->inumber = cpu_to_be64(args->inumber);
 	dep->namelen = args->namelen;
 	memcpy(dep->name, args->name, dep->namelen);
-	xfs_dir3_dirent_put_ftype(mp, dep, args->filetype);
-	tagp = xfs_dir3_data_entry_tag_p(mp, dep);
+	dp->d_ops->data_put_ftype(dep, args->filetype);
+	tagp = dp->d_ops->data_entry_tag_p(dep);
 	*tagp = cpu_to_be16((char *)dep - (char *)hdr);
-	xfs_dir2_data_log_entry(tp, dbp, dep);
+	xfs_dir2_data_log_entry(tp, dp, dbp, dep);
 	/*
 	 * Rescan the block for bestfree if needed.
 	 */
 	if (needscan)
-		xfs_dir2_data_freescan(mp, hdr, &needlog);
+		xfs_dir2_data_freescan(dp, hdr, &needlog);
 	/*
 	 * Log the data block header if needed.
 	 */
@@ -2228,8 +2228,9 @@ xfs_dir2_node_replace(
 		 * Fill in the new inode number and log the entry.
 		 */
 		dep->inumber = cpu_to_be64(inum);
-		xfs_dir3_dirent_put_ftype(state->mp, dep, args->filetype);
-		xfs_dir2_data_log_entry(args->trans, state->extrablk.bp, dep);
+		args->dp->d_ops->data_put_ftype(dep, args->filetype);
+		xfs_dir2_data_log_entry(args->trans, args->dp,
+					state->extrablk.bp, dep);
 		rval = 0;
 	}
 	/*
diff --git a/fs/xfs/xfs_dir2_readdir.c b/fs/xfs/xfs_dir2_readdir.c
index 2d2c8fb05541..b99aa7d48e90 100644
--- a/fs/xfs/xfs_dir2_readdir.c
+++ b/fs/xfs/xfs_dir2_readdir.c
@@ -119,9 +119,9 @@ xfs_dir2_sf_getdents(
 	 * mp->m_dirdatablk.
 	 */
 	dot_offset = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
-					     xfs_dir3_data_dot_offset(mp));
+						dp->d_ops->data_dot_offset());
 	dotdot_offset = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
-						xfs_dir3_data_dotdot_offset(mp));
+						dp->d_ops->data_dotdot_offset());
 
 	/*
 	 * Put . entry unless we're starting past it.
@@ -237,7 +237,7 @@ xfs_dir2_block_getdents(
 		/*
 		 * Bump pointer for the next iteration.
 		 */
-		ptr += xfs_dir3_data_entsize(mp, dep->namelen);
+		ptr += dp->d_ops->data_entsize(dep->namelen);
 		/*
 		 * The entry is before the desired starting point, skip it.
 		 */
@@ -248,7 +248,7 @@ xfs_dir2_block_getdents(
 					    (char *)dep - (char *)hdr);
 
 		ctx->pos = cook & 0x7fffffff;
-		filetype = xfs_dir3_dirent_get_ftype(mp, dep);
+		filetype = dp->d_ops->data_get_ftype(dep);
 		/*
 		 * If it didn't fit, set the final offset to here & return.
 		 */
@@ -601,7 +601,7 @@ xfs_dir2_leaf_getdents(
 					}
 					dep = (xfs_dir2_data_entry_t *)ptr;
 					length =
-					   xfs_dir3_data_entsize(mp, dep->namelen);
+					   dp->d_ops->data_entsize(dep->namelen);
 					ptr += length;
 				}
 				/*
@@ -632,8 +632,8 @@ xfs_dir2_leaf_getdents(
 		}
 
 		dep = (xfs_dir2_data_entry_t *)ptr;
-		length = xfs_dir3_data_entsize(mp, dep->namelen);
-		filetype = xfs_dir3_dirent_get_ftype(mp, dep);
+		length = dp->d_ops->data_entsize(dep->namelen);
+		filetype = dp->d_ops->data_get_ftype(dep);
 
 		ctx->pos = xfs_dir2_byte_to_dataptr(mp, curoff) & 0x7fffffff;
 		if (!dir_emit(ctx, (char *)dep->name, dep->namelen,
diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c
index ec0d39b5fa12..953e19479151 100644
--- a/fs/xfs/xfs_dir2_sf.c
+++ b/fs/xfs/xfs_dir2_sf.c
@@ -251,11 +251,11 @@ xfs_dir2_block_to_sf(
 			dp->d_ops->sf_put_ino(sfp, sfep,
 					      be64_to_cpu(dep->inumber));
 			dp->d_ops->sf_put_ftype(sfep,
-					xfs_dir3_dirent_get_ftype(mp, dep));
+					dp->d_ops->data_get_ftype(dep));
 
 			sfep = dp->d_ops->sf_nextentry(sfp, sfep);
 		}
-		ptr += xfs_dir3_data_entsize(mp, dep->namelen);
+		ptr += dp->d_ops->data_entsize(dep->namelen);
 	}
 	ASSERT((char *)sfep - (char *)sfp == size);
 	xfs_dir2_sf_check(args);
@@ -473,12 +473,12 @@ xfs_dir2_sf_addname_hard(
 	 * to insert the new entry.
 	 * If it's going to end up at the end then oldsfep will point there.
 	 */
-	for (offset = xfs_dir3_data_first_offset(mp),
+	for (offset = dp->d_ops->data_first_offset(),
 	      oldsfep = xfs_dir2_sf_firstentry(oldsfp),
-	      add_datasize = xfs_dir3_data_entsize(mp, args->namelen),
+	      add_datasize = dp->d_ops->data_entsize(args->namelen),
 	      eof = (char *)oldsfep == &buf[old_isize];
 	     !eof;
-	     offset = new_offset + xfs_dir3_data_entsize(mp, oldsfep->namelen),
+	     offset = new_offset + dp->d_ops->data_entsize(oldsfep->namelen),
 	      oldsfep = dp->d_ops->sf_nextentry(oldsfp, oldsfep),
 	      eof = (char *)oldsfep == &buf[old_isize]) {
 		new_offset = xfs_dir2_sf_get_offset(oldsfep);
@@ -555,8 +555,8 @@ xfs_dir2_sf_addname_pick(
 	mp = dp->i_mount;
 
 	sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
-	size = xfs_dir3_data_entsize(mp, args->namelen);
-	offset = xfs_dir3_data_first_offset(mp);
+	size = dp->d_ops->data_entsize(args->namelen);
+	offset = dp->d_ops->data_first_offset();
 	sfep = xfs_dir2_sf_firstentry(sfp);
 	holefit = 0;
 	/*
@@ -568,7 +568,7 @@ xfs_dir2_sf_addname_pick(
 		if (!holefit)
 			holefit = offset + size <= xfs_dir2_sf_get_offset(sfep);
 		offset = xfs_dir2_sf_get_offset(sfep) +
-			 xfs_dir3_data_entsize(mp, sfep->namelen);
+			 dp->d_ops->data_entsize(sfep->namelen);
 		sfep = dp->d_ops->sf_nextentry(sfp, sfep);
 	}
 	/*
@@ -629,7 +629,7 @@ xfs_dir2_sf_check(
 	mp = dp->i_mount;
 
 	sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
-	offset = xfs_dir3_data_first_offset(mp);
+	offset = dp->d_ops->data_first_offset();
 	ino = dp->d_ops->sf_get_parent_ino(sfp);
 	i8count = ino > XFS_DIR2_MAX_SHORT_INUM;
 
@@ -641,7 +641,7 @@ xfs_dir2_sf_check(
 		i8count += ino > XFS_DIR2_MAX_SHORT_INUM;
 		offset =
 			xfs_dir2_sf_get_offset(sfep) +
-			xfs_dir3_data_entsize(mp, sfep->namelen);
+			dp->d_ops->data_entsize(sfep->namelen);
 		ASSERT(dp->d_ops->sf_get_ftype(sfep) < XFS_DIR3_FT_MAX);
 	}
 	ASSERT(i8count == sfp->i8count);
-- 
cgit 


From 2ca9877410594dd321621efc9e1cbcd1ca24d0f3 Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 29 Oct 2013 22:11:49 +1100
Subject: xfs: vectorise directory data operations part 2

Convert the rest of the directory data block encode/decode
operations to vector format.

This further reduces the size of the built binary:

   text    data     bss     dec     hex filename
 794490   96802    1096  892388   d9de4 fs/xfs/xfs.o.orig
 792986   96802    1096  890884   d9804 fs/xfs/xfs.o.p1
 792350   96802    1096  890248   d9588 fs/xfs/xfs.o.p2
 789293   96802    1096  887191   d8997 fs/xfs/xfs.o.p3
 789005   96802    1096  886903   d8997 fs/xfs/xfs.o.p4

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_da_format.c    |  68 +++++++++++++++++++++++++++++
 fs/xfs/xfs_da_format.h    |  41 ------------------
 fs/xfs/xfs_dir2.h         |  22 +++++++---
 fs/xfs/xfs_dir2_block.c   |  33 ++++++++-------
 fs/xfs/xfs_dir2_data.c    | 106 +++++++++++++++++++++++++---------------------
 fs/xfs/xfs_dir2_leaf.c    |  26 ++++++------
 fs/xfs/xfs_dir2_node.c    |  16 +++----
 fs/xfs/xfs_dir2_priv.h    |   3 +-
 fs/xfs/xfs_dir2_readdir.c |   6 +--
 fs/xfs/xfs_dir2_sf.c      |   2 +-
 10 files changed, 186 insertions(+), 137 deletions(-)

diff --git a/fs/xfs/xfs_da_format.c b/fs/xfs/xfs_da_format.c
index d0285fdfb6e7..1e92a241fd52 100644
--- a/fs/xfs/xfs_da_format.c
+++ b/fs/xfs/xfs_da_format.c
@@ -383,6 +383,58 @@ xfs_dir3_data_first_entry_p(
 		((char *)hdr + xfs_dir3_data_first_offset());
 }
 
+static struct xfs_dir2_data_free *
+xfs_dir2_data_bestfree_p(struct xfs_dir2_data_hdr *hdr)
+{
+	return hdr->bestfree;
+}
+
+static struct xfs_dir2_data_free *
+xfs_dir3_data_bestfree_p(struct xfs_dir2_data_hdr *hdr)
+{
+	return ((struct xfs_dir3_data_hdr *)hdr)->best_free;
+}
+
+static size_t
+xfs_dir2_data_entry_offset(void)
+{
+	return sizeof(struct xfs_dir2_data_hdr);
+}
+
+static struct xfs_dir2_data_entry *
+xfs_dir2_data_entry_p(struct xfs_dir2_data_hdr *hdr)
+{
+	return (struct xfs_dir2_data_entry *)
+		((char *)hdr + xfs_dir2_data_entry_offset());
+}
+
+static struct xfs_dir2_data_unused *
+xfs_dir2_data_unused_p(struct xfs_dir2_data_hdr *hdr)
+{
+	return (struct xfs_dir2_data_unused *)
+		((char *)hdr + xfs_dir2_data_entry_offset());
+}
+
+static size_t
+xfs_dir3_data_entry_offset(void)
+{
+	return sizeof(struct xfs_dir3_data_hdr);
+}
+
+static struct xfs_dir2_data_entry *
+xfs_dir3_data_entry_p(struct xfs_dir2_data_hdr *hdr)
+{
+	return (struct xfs_dir2_data_entry *)
+		((char *)hdr + xfs_dir3_data_entry_offset());
+}
+
+static struct xfs_dir2_data_unused *
+xfs_dir3_data_unused_p(struct xfs_dir2_data_hdr *hdr)
+{
+	return (struct xfs_dir2_data_unused *)
+		((char *)hdr + xfs_dir3_data_entry_offset());
+}
+
 const struct xfs_dir_ops xfs_dir2_ops = {
 	.sf_entsize = xfs_dir2_sf_entsize,
 	.sf_nextentry = xfs_dir2_sf_nextentry,
@@ -397,13 +449,19 @@ const struct xfs_dir_ops xfs_dir2_ops = {
 	.data_get_ftype = xfs_dir2_data_get_ftype,
 	.data_put_ftype = xfs_dir2_data_put_ftype,
 	.data_entry_tag_p = xfs_dir2_data_entry_tag_p,
+	.data_bestfree_p = xfs_dir2_data_bestfree_p,
 
 	.data_dot_offset = xfs_dir2_data_dot_offset,
 	.data_dotdot_offset = xfs_dir2_data_dotdot_offset,
 	.data_first_offset = xfs_dir2_data_first_offset,
+	.data_entry_offset = xfs_dir2_data_entry_offset,
+
 	.data_dot_entry_p = xfs_dir2_data_dot_entry_p,
 	.data_dotdot_entry_p = xfs_dir2_data_dotdot_entry_p,
 	.data_first_entry_p = xfs_dir2_data_first_entry_p,
+	.data_entry_p = xfs_dir2_data_entry_p,
+	.data_unused_p = xfs_dir2_data_unused_p,
+
 };
 
 const struct xfs_dir_ops xfs_dir2_ftype_ops = {
@@ -420,13 +478,18 @@ const struct xfs_dir_ops xfs_dir2_ftype_ops = {
 	.data_get_ftype = xfs_dir3_data_get_ftype,
 	.data_put_ftype = xfs_dir3_data_put_ftype,
 	.data_entry_tag_p = xfs_dir3_data_entry_tag_p,
+	.data_bestfree_p = xfs_dir2_data_bestfree_p,
 
 	.data_dot_offset = xfs_dir2_data_dot_offset,
 	.data_dotdot_offset = xfs_dir2_data_dotdot_offset,
 	.data_first_offset = xfs_dir2_data_first_offset,
+	.data_entry_offset = xfs_dir2_data_entry_offset,
+
 	.data_dot_entry_p = xfs_dir2_data_dot_entry_p,
 	.data_dotdot_entry_p = xfs_dir2_data_dotdot_entry_p,
 	.data_first_entry_p = xfs_dir2_data_first_entry_p,
+	.data_entry_p = xfs_dir2_data_entry_p,
+	.data_unused_p = xfs_dir2_data_unused_p,
 };
 
 const struct xfs_dir_ops xfs_dir3_ops = {
@@ -443,11 +506,16 @@ const struct xfs_dir_ops xfs_dir3_ops = {
 	.data_get_ftype = xfs_dir3_data_get_ftype,
 	.data_put_ftype = xfs_dir3_data_put_ftype,
 	.data_entry_tag_p = xfs_dir3_data_entry_tag_p,
+	.data_bestfree_p = xfs_dir3_data_bestfree_p,
 
 	.data_dot_offset = xfs_dir3_data_dot_offset,
 	.data_dotdot_offset = xfs_dir3_data_dotdot_offset,
 	.data_first_offset = xfs_dir3_data_first_offset,
+	.data_entry_offset = xfs_dir3_data_entry_offset,
+
 	.data_dot_entry_p = xfs_dir3_data_dot_entry_p,
 	.data_dotdot_entry_p = xfs_dir3_data_dotdot_entry_p,
 	.data_first_entry_p = xfs_dir3_data_first_entry_p,
+	.data_entry_p = xfs_dir3_data_entry_p,
+	.data_unused_p = xfs_dir3_data_unused_p,
 };
diff --git a/fs/xfs/xfs_da_format.h b/fs/xfs/xfs_da_format.h
index 5b72dd2f8a69..aeca0038a013 100644
--- a/fs/xfs/xfs_da_format.h
+++ b/fs/xfs/xfs_da_format.h
@@ -412,17 +412,6 @@ struct xfs_dir3_data_hdr {
 
 #define XFS_DIR3_DATA_CRC_OFF  offsetof(struct xfs_dir3_data_hdr, hdr.crc)
 
-static inline struct xfs_dir2_data_free *
-xfs_dir3_data_bestfree_p(struct xfs_dir2_data_hdr *hdr)
-{
-	if (hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) ||
-	    hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC)) {
-		struct xfs_dir3_data_hdr *hdr3 = (struct xfs_dir3_data_hdr *)hdr;
-		return hdr3->best_free;
-	}
-	return hdr->bestfree;
-}
-
 /*
  * Active entry in a data block.
  *
@@ -465,36 +454,6 @@ xfs_dir2_data_unused_tag_p(struct xfs_dir2_data_unused *dup)
 			be16_to_cpu(dup->length) - sizeof(__be16));
 }
 
-static inline size_t
-xfs_dir3_data_hdr_size(bool dir3)
-{
-	if (dir3)
-		return sizeof(struct xfs_dir3_data_hdr);
-	return sizeof(struct xfs_dir2_data_hdr);
-}
-
-static inline size_t
-xfs_dir3_data_entry_offset(struct xfs_dir2_data_hdr *hdr)
-{
-	bool dir3 = hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) ||
-		    hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC);
-	return xfs_dir3_data_hdr_size(dir3);
-}
-
-static inline struct xfs_dir2_data_entry *
-xfs_dir3_data_entry_p(struct xfs_dir2_data_hdr *hdr)
-{
-	return (struct xfs_dir2_data_entry *)
-		((char *)hdr + xfs_dir3_data_entry_offset(hdr));
-}
-
-static inline struct xfs_dir2_data_unused *
-xfs_dir3_data_unused_p(struct xfs_dir2_data_hdr *hdr)
-{
-	return (struct xfs_dir2_data_unused *)
-		((char *)hdr + xfs_dir3_data_entry_offset(hdr));
-}
-
 /*
  * Leaf block structures.
  *
diff --git a/fs/xfs/xfs_dir2.h b/fs/xfs/xfs_dir2.h
index c0a45923cce0..076010a1376a 100644
--- a/fs/xfs/xfs_dir2.h
+++ b/fs/xfs/xfs_dir2.h
@@ -56,16 +56,24 @@ struct xfs_dir_ops {
 	void	(*data_put_ftype)(struct xfs_dir2_data_entry *dep,
 				__uint8_t ftype);
 	__be16 * (*data_entry_tag_p)(struct xfs_dir2_data_entry *dep);
+	struct xfs_dir2_data_free *
+		(*data_bestfree_p)(struct xfs_dir2_data_hdr *hdr);
 
 	xfs_dir2_data_aoff_t (*data_dot_offset)(void);
 	xfs_dir2_data_aoff_t (*data_dotdot_offset)(void);
 	xfs_dir2_data_aoff_t (*data_first_offset)(void);
+	size_t	(*data_entry_offset)(void);
+
 	struct xfs_dir2_data_entry *
 		(*data_dot_entry_p)(struct xfs_dir2_data_hdr *hdr);
 	struct xfs_dir2_data_entry *
 		(*data_dotdot_entry_p)(struct xfs_dir2_data_hdr *hdr);
 	struct xfs_dir2_data_entry *
 		(*data_first_entry_p)(struct xfs_dir2_data_hdr *hdr);
+	struct xfs_dir2_data_entry *
+		(*data_entry_p)(struct xfs_dir2_data_hdr *hdr);
+	struct xfs_dir2_data_unused *
+		(*data_unused_p)(struct xfs_dir2_data_hdr *hdr);
 };
 
 extern const struct xfs_dir_ops xfs_dir2_ops;
@@ -115,19 +123,21 @@ extern void xfs_dir2_data_freescan(struct xfs_inode *dp,
 		struct xfs_dir2_data_hdr *hdr, int *loghead);
 extern void xfs_dir2_data_log_entry(struct xfs_trans *tp, struct xfs_inode *dp,
 		struct xfs_buf *bp, struct xfs_dir2_data_entry *dep);
-extern void xfs_dir2_data_log_header(struct xfs_trans *tp,
+extern void xfs_dir2_data_log_header(struct xfs_trans *tp, struct xfs_inode *dp,
 		struct xfs_buf *bp);
 extern void xfs_dir2_data_log_unused(struct xfs_trans *tp, struct xfs_buf *bp,
 		struct xfs_dir2_data_unused *dup);
-extern void xfs_dir2_data_make_free(struct xfs_trans *tp, struct xfs_buf *bp,
+extern void xfs_dir2_data_make_free(struct xfs_trans *tp, struct xfs_inode *dp,
+		struct xfs_buf *bp, xfs_dir2_data_aoff_t offset,
+		xfs_dir2_data_aoff_t len, int *needlogp, int *needscanp);
+extern void xfs_dir2_data_use_free(struct xfs_trans *tp, struct xfs_inode *dp,
+		struct xfs_buf *bp, struct xfs_dir2_data_unused *dup,
 		xfs_dir2_data_aoff_t offset, xfs_dir2_data_aoff_t len,
 		int *needlogp, int *needscanp);
-extern void xfs_dir2_data_use_free(struct xfs_trans *tp, struct xfs_buf *bp,
-		struct xfs_dir2_data_unused *dup, xfs_dir2_data_aoff_t offset,
-		xfs_dir2_data_aoff_t len, int *needlogp, int *needscanp);
 
 extern struct xfs_dir2_data_free *xfs_dir2_data_freefind(
-		struct xfs_dir2_data_hdr *hdr, struct xfs_dir2_data_unused *dup);
+		struct xfs_dir2_data_hdr *hdr, struct xfs_dir2_data_free *bf,
+		struct xfs_dir2_data_unused *dup);
 
 extern const struct xfs_buf_ops xfs_dir3_block_buf_ops;
 extern const struct xfs_buf_ops xfs_dir3_leafn_buf_ops;
diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c
index 507ef6a7d1f9..f92ca5699342 100644
--- a/fs/xfs/xfs_dir2_block.c
+++ b/fs/xfs/xfs_dir2_block.c
@@ -168,6 +168,7 @@ xfs_dir3_block_init(
 
 static void
 xfs_dir2_block_need_space(
+	struct xfs_inode		*dp,
 	struct xfs_dir2_data_hdr	*hdr,
 	struct xfs_dir2_block_tail	*btp,
 	struct xfs_dir2_leaf_entry	*blp,
@@ -183,7 +184,7 @@ xfs_dir2_block_need_space(
 	struct xfs_dir2_data_unused	*enddup = NULL;
 
 	*compact = 0;
-	bf = xfs_dir3_data_bestfree_p(hdr);
+	bf = dp->d_ops->data_bestfree_p(hdr);
 
 	/*
 	 * If there are stale entries we'll use one for the leaf.
@@ -313,7 +314,7 @@ xfs_dir2_block_compact(
 	*lfloglow = toidx + 1 - (be32_to_cpu(btp->stale) - 1);
 	*lfloghigh -= be32_to_cpu(btp->stale) - 1;
 	be32_add_cpu(&btp->count, -(be32_to_cpu(btp->stale) - 1));
-	xfs_dir2_data_make_free(tp, bp,
+	xfs_dir2_data_make_free(tp, dp, bp,
 		(xfs_dir2_data_aoff_t)((char *)blp - (char *)hdr),
 		(xfs_dir2_data_aoff_t)((be32_to_cpu(btp->stale) - 1) * sizeof(*blp)),
 		needlog, &needscan);
@@ -383,7 +384,7 @@ xfs_dir2_block_addname(
 	 * Find out if we can reuse stale entries or whether we need extra
 	 * space for entry and new leaf.
 	 */
-	xfs_dir2_block_need_space(hdr, btp, blp, &tagp, &dup,
+	xfs_dir2_block_need_space(dp, hdr, btp, blp, &tagp, &dup,
 				  &enddup, &compact, len);
 
 	/*
@@ -454,7 +455,7 @@ xfs_dir2_block_addname(
 		/*
 		 * Mark the space needed for the new leaf entry, now in use.
 		 */
-		xfs_dir2_data_use_free(tp, bp, enddup,
+		xfs_dir2_data_use_free(tp, dp, bp, enddup,
 			(xfs_dir2_data_aoff_t)
 			((char *)enddup - (char *)hdr + be16_to_cpu(enddup->length) -
 			 sizeof(*blp)),
@@ -541,7 +542,7 @@ xfs_dir2_block_addname(
 	/*
 	 * Mark space for the data entry used.
 	 */
-	xfs_dir2_data_use_free(tp, bp, dup,
+	xfs_dir2_data_use_free(tp, dp, bp, dup,
 		(xfs_dir2_data_aoff_t)((char *)dup - (char *)hdr),
 		(xfs_dir2_data_aoff_t)len, &needlog, &needscan);
 	/*
@@ -559,7 +560,7 @@ xfs_dir2_block_addname(
 	if (needscan)
 		xfs_dir2_data_freescan(dp, hdr, &needlog);
 	if (needlog)
-		xfs_dir2_data_log_header(tp, bp);
+		xfs_dir2_data_log_header(tp, dp, bp);
 	xfs_dir2_block_log_tail(tp, bp);
 	xfs_dir2_data_log_entry(tp, dp, bp, dep);
 	xfs_dir3_data_check(dp, bp);
@@ -800,7 +801,7 @@ xfs_dir2_block_removename(
 	 * Mark the data entry's space free.
 	 */
 	needlog = needscan = 0;
-	xfs_dir2_data_make_free(tp, bp,
+	xfs_dir2_data_make_free(tp, dp, bp,
 		(xfs_dir2_data_aoff_t)((char *)dep - (char *)hdr),
 		dp->d_ops->data_entsize(dep->namelen), &needlog, &needscan);
 	/*
@@ -819,7 +820,7 @@ xfs_dir2_block_removename(
 	if (needscan)
 		xfs_dir2_data_freescan(dp, hdr, &needlog);
 	if (needlog)
-		xfs_dir2_data_log_header(tp, bp);
+		xfs_dir2_data_log_header(tp, dp, bp);
 	xfs_dir3_data_check(dp, bp);
 	/*
 	 * See if the size as a shortform is good enough.
@@ -950,7 +951,7 @@ xfs_dir2_leaf_to_block(
 	while (dp->i_d.di_size > mp->m_dirblksize) {
 		int hdrsz;
 
-		hdrsz = xfs_dir3_data_hdr_size(xfs_sb_version_hascrc(&mp->m_sb));
+		hdrsz = dp->d_ops->data_entry_offset();
 		bestsp = xfs_dir2_leaf_bests_p(ltp);
 		if (be16_to_cpu(bestsp[be32_to_cpu(ltp->bestcount) - 1]) ==
 					    mp->m_dirblksize - hdrsz) {
@@ -1000,7 +1001,7 @@ xfs_dir2_leaf_to_block(
 	/*
 	 * Use up the space at the end of the block (blp/btp).
 	 */
-	xfs_dir2_data_use_free(tp, dbp, dup, mp->m_dirblksize - size, size,
+	xfs_dir2_data_use_free(tp, dp, dbp, dup, mp->m_dirblksize - size, size,
 		&needlog, &needscan);
 	/*
 	 * Initialize the block tail.
@@ -1026,7 +1027,7 @@ xfs_dir2_leaf_to_block(
 	if (needscan)
 		xfs_dir2_data_freescan(dp, hdr, &needlog);
 	if (needlog)
-		xfs_dir2_data_log_header(tp, dbp);
+		xfs_dir2_data_log_header(tp, dp, dbp);
 	/*
 	 * Pitch the old leaf block.
 	 */
@@ -1137,9 +1138,9 @@ xfs_dir2_sf_to_block(
 	 * The whole thing is initialized to free by the init routine.
 	 * Say we're using the leaf and tail area.
 	 */
-	dup = xfs_dir3_data_unused_p(hdr);
+	dup = dp->d_ops->data_unused_p(hdr);
 	needlog = needscan = 0;
-	xfs_dir2_data_use_free(tp, bp, dup, mp->m_dirblksize - i, i, &needlog,
+	xfs_dir2_data_use_free(tp, dp, bp, dup, mp->m_dirblksize - i, i, &needlog,
 		&needscan);
 	ASSERT(needscan == 0);
 	/*
@@ -1153,7 +1154,7 @@ xfs_dir2_sf_to_block(
 	/*
 	 * Remove the freespace, we'll manage it.
 	 */
-	xfs_dir2_data_use_free(tp, bp, dup,
+	xfs_dir2_data_use_free(tp, dp, bp, dup,
 		(xfs_dir2_data_aoff_t)((char *)dup - (char *)hdr),
 		be16_to_cpu(dup->length), &needlog, &needscan);
 	/*
@@ -1215,7 +1216,9 @@ xfs_dir2_sf_to_block(
 			*xfs_dir2_data_unused_tag_p(dup) = cpu_to_be16(
 				((char *)dup - (char *)hdr));
 			xfs_dir2_data_log_unused(tp, bp, dup);
-			xfs_dir2_data_freeinsert(hdr, dup, &dummy);
+			xfs_dir2_data_freeinsert(hdr,
+						 dp->d_ops->data_bestfree_p(hdr),
+						 dup, &dummy);
 			offset += be16_to_cpu(dup->length);
 			continue;
 		}
diff --git a/fs/xfs/xfs_dir2_data.c b/fs/xfs/xfs_dir2_data.c
index 00006b3db054..13fa0d6b4ff7 100644
--- a/fs/xfs/xfs_dir2_data.c
+++ b/fs/xfs/xfs_dir2_data.c
@@ -66,8 +66,6 @@ __xfs_dir3_data_check(
 
 	mp = bp->b_target->bt_mount;
 	hdr = bp->b_addr;
-	bf = xfs_dir3_data_bestfree_p(hdr);
-	p = (char *)xfs_dir3_data_entry_p(hdr);
 
 	/*
 	 * We can be passed a null dp here from a verifier, so manually
@@ -97,6 +95,8 @@ __xfs_dir3_data_check(
 		XFS_ERROR_REPORT("Bad Magic", XFS_ERRLEVEL_LOW, mp);
 		return EFSCORRUPTED;
 	}
+	bf = ops->data_bestfree_p(hdr);
+	p = (char *)ops->data_entry_p(hdr);
 
 	count = lastfree = freeseen = 0;
 	/*
@@ -134,7 +134,7 @@ __xfs_dir3_data_check(
 			XFS_WANT_CORRUPTED_RETURN(
 				be16_to_cpu(*xfs_dir2_data_unused_tag_p(dup)) ==
 					       (char *)dup - (char *)hdr);
-			dfp = xfs_dir2_data_freefind(hdr, dup);
+			dfp = xfs_dir2_data_freefind(hdr, bf, dup);
 			if (dfp) {
 				i = (int)(dfp - bf);
 				XFS_WANT_CORRUPTED_RETURN(
@@ -340,19 +340,18 @@ xfs_dir3_data_readahead(
  */
 xfs_dir2_data_free_t *
 xfs_dir2_data_freefind(
-	xfs_dir2_data_hdr_t	*hdr,		/* data block */
-	xfs_dir2_data_unused_t	*dup)		/* data unused entry */
+	struct xfs_dir2_data_hdr *hdr,		/* data block header */
+	struct xfs_dir2_data_free *bf,		/* bestfree table pointer */
+	struct xfs_dir2_data_unused *dup)	/* unused space */
 {
 	xfs_dir2_data_free_t	*dfp;		/* bestfree entry */
 	xfs_dir2_data_aoff_t	off;		/* offset value needed */
-	struct xfs_dir2_data_free *bf;
 #ifdef DEBUG
 	int			matched;	/* matched the value */
 	int			seenzero;	/* saw a 0 bestfree entry */
 #endif
 
 	off = (xfs_dir2_data_aoff_t)((char *)dup - (char *)hdr);
-	bf = xfs_dir3_data_bestfree_p(hdr);
 
 #ifdef DEBUG
 	/*
@@ -412,11 +411,11 @@ xfs_dir2_data_freefind(
  */
 xfs_dir2_data_free_t *				/* entry inserted */
 xfs_dir2_data_freeinsert(
-	xfs_dir2_data_hdr_t	*hdr,		/* data block pointer */
-	xfs_dir2_data_unused_t	*dup,		/* unused space */
+	struct xfs_dir2_data_hdr *hdr,		/* data block pointer */
+	struct xfs_dir2_data_free *dfp,		/* bestfree table pointer */
+	struct xfs_dir2_data_unused *dup,	/* unused space */
 	int			*loghead)	/* log the data header (out) */
 {
-	xfs_dir2_data_free_t	*dfp;		/* bestfree table pointer */
 	xfs_dir2_data_free_t	new;		/* new bestfree entry */
 
 	ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) ||
@@ -424,7 +423,6 @@ xfs_dir2_data_freeinsert(
 	       hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) ||
 	       hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC));
 
-	dfp = xfs_dir3_data_bestfree_p(hdr);
 	new.length = dup->length;
 	new.offset = cpu_to_be16((char *)dup - (char *)hdr);
 
@@ -457,11 +455,11 @@ xfs_dir2_data_freeinsert(
  */
 STATIC void
 xfs_dir2_data_freeremove(
-	xfs_dir2_data_hdr_t	*hdr,		/* data block header */
-	xfs_dir2_data_free_t	*dfp,		/* bestfree entry pointer */
+	struct xfs_dir2_data_hdr *hdr,		/* data block header */
+	struct xfs_dir2_data_free *bf,		/* bestfree table pointer */
+	struct xfs_dir2_data_free *dfp,		/* bestfree entry pointer */
 	int			*loghead)	/* out: log data header */
 {
-	struct xfs_dir2_data_free *bf;
 
 	ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) ||
 	       hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC) ||
@@ -471,7 +469,6 @@ xfs_dir2_data_freeremove(
 	/*
 	 * It's the first entry, slide the next 2 up.
 	 */
-	bf = xfs_dir3_data_bestfree_p(hdr);
 	if (dfp == &bf[0]) {
 		bf[0] = bf[1];
 		bf[1] = bf[2];
@@ -518,13 +515,13 @@ xfs_dir2_data_freescan(
 	/*
 	 * Start by clearing the table.
 	 */
-	bf = xfs_dir3_data_bestfree_p(hdr);
+	bf = dp->d_ops->data_bestfree_p(hdr);
 	memset(bf, 0, sizeof(*bf) * XFS_DIR2_DATA_FD_COUNT);
 	*loghead = 1;
 	/*
 	 * Set up pointers.
 	 */
-	p = (char *)xfs_dir3_data_entry_p(hdr);
+	p = (char *)dp->d_ops->data_entry_p(hdr);
 	if (hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC) ||
 	    hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC)) {
 		btp = xfs_dir2_block_tail_p(dp->i_mount, hdr);
@@ -542,7 +539,7 @@ xfs_dir2_data_freescan(
 		if (be16_to_cpu(dup->freetag) == XFS_DIR2_DATA_FREE_TAG) {
 			ASSERT((char *)dup - (char *)hdr ==
 			       be16_to_cpu(*xfs_dir2_data_unused_tag_p(dup)));
-			xfs_dir2_data_freeinsert(hdr, dup, loghead);
+			xfs_dir2_data_freeinsert(hdr, bf, dup, loghead);
 			p += be16_to_cpu(dup->length);
 		}
 		/*
@@ -607,8 +604,8 @@ xfs_dir3_data_init(
 	} else
 		hdr->magic = cpu_to_be32(XFS_DIR2_DATA_MAGIC);
 
-	bf = xfs_dir3_data_bestfree_p(hdr);
-	bf[0].offset = cpu_to_be16(xfs_dir3_data_entry_offset(hdr));
+	bf = dp->d_ops->data_bestfree_p(hdr);
+	bf[0].offset = cpu_to_be16(dp->d_ops->data_entry_offset());
 	for (i = 1; i < XFS_DIR2_DATA_FD_COUNT; i++) {
 		bf[i].length = 0;
 		bf[i].offset = 0;
@@ -617,17 +614,17 @@ xfs_dir3_data_init(
 	/*
 	 * Set up an unused entry for the block's body.
 	 */
-	dup = xfs_dir3_data_unused_p(hdr);
+	dup = dp->d_ops->data_unused_p(hdr);
 	dup->freetag = cpu_to_be16(XFS_DIR2_DATA_FREE_TAG);
 
-	t = mp->m_dirblksize - (uint)xfs_dir3_data_entry_offset(hdr);
+	t = mp->m_dirblksize - (uint)dp->d_ops->data_entry_offset();
 	bf[0].length = cpu_to_be16(t);
 	dup->length = cpu_to_be16(t);
 	*xfs_dir2_data_unused_tag_p(dup) = cpu_to_be16((char *)dup - (char *)hdr);
 	/*
 	 * Log it and return it.
 	 */
-	xfs_dir2_data_log_header(tp, bp);
+	xfs_dir2_data_log_header(tp, dp, bp);
 	xfs_dir2_data_log_unused(tp, bp, dup);
 	*bpp = bp;
 	return 0;
@@ -661,16 +658,19 @@ xfs_dir2_data_log_entry(
 void
 xfs_dir2_data_log_header(
 	struct xfs_trans	*tp,
+	struct xfs_inode	*dp,
 	struct xfs_buf		*bp)
 {
-	xfs_dir2_data_hdr_t	*hdr = bp->b_addr;
+#ifdef DEBUG
+	struct xfs_dir2_data_hdr *hdr = bp->b_addr;
 
 	ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) ||
 	       hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC) ||
 	       hdr->magic == cpu_to_be32(XFS_DIR2_BLOCK_MAGIC) ||
 	       hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC));
+#endif
 
-	xfs_trans_log_buf(tp, bp, 0, xfs_dir3_data_entry_offset(hdr) - 1);
+	xfs_trans_log_buf(tp, bp, 0, dp->d_ops->data_entry_offset() - 1);
 }
 
 /*
@@ -711,6 +711,7 @@ xfs_dir2_data_log_unused(
 void
 xfs_dir2_data_make_free(
 	struct xfs_trans	*tp,
+	struct xfs_inode	*dp,
 	struct xfs_buf		*bp,
 	xfs_dir2_data_aoff_t	offset,		/* starting byte offset */
 	xfs_dir2_data_aoff_t	len,		/* length in bytes */
@@ -748,7 +749,7 @@ xfs_dir2_data_make_free(
 	 * If this isn't the start of the block, then back up to
 	 * the previous entry and see if it's free.
 	 */
-	if (offset > xfs_dir3_data_entry_offset(hdr)) {
+	if (offset > dp->d_ops->data_entry_offset()) {
 		__be16			*tagp;	/* tag just before us */
 
 		tagp = (__be16 *)((char *)hdr + offset) - 1;
@@ -774,15 +775,15 @@ xfs_dir2_data_make_free(
 	 * Previous and following entries are both free,
 	 * merge everything into a single free entry.
 	 */
-	bf = xfs_dir3_data_bestfree_p(hdr);
+	bf = dp->d_ops->data_bestfree_p(hdr);
 	if (prevdup && postdup) {
 		xfs_dir2_data_free_t	*dfp2;	/* another bestfree pointer */
 
 		/*
 		 * See if prevdup and/or postdup are in bestfree table.
 		 */
-		dfp = xfs_dir2_data_freefind(hdr, prevdup);
-		dfp2 = xfs_dir2_data_freefind(hdr, postdup);
+		dfp = xfs_dir2_data_freefind(hdr, bf, prevdup);
+		dfp2 = xfs_dir2_data_freefind(hdr, bf, postdup);
 		/*
 		 * We need a rescan unless there are exactly 2 free entries
 		 * namely our two.  Then we know what's happening, otherwise
@@ -810,12 +811,13 @@ xfs_dir2_data_make_free(
 				ASSERT(dfp2 == dfp);
 				dfp2 = &bf[1];
 			}
-			xfs_dir2_data_freeremove(hdr, dfp2, needlogp);
-			xfs_dir2_data_freeremove(hdr, dfp, needlogp);
+			xfs_dir2_data_freeremove(hdr, bf, dfp2, needlogp);
+			xfs_dir2_data_freeremove(hdr, bf, dfp, needlogp);
 			/*
 			 * Now insert the new entry.
 			 */
-			dfp = xfs_dir2_data_freeinsert(hdr, prevdup, needlogp);
+			dfp = xfs_dir2_data_freeinsert(hdr, bf, prevdup,
+						       needlogp);
 			ASSERT(dfp == &bf[0]);
 			ASSERT(dfp->length == prevdup->length);
 			ASSERT(!dfp[1].length);
@@ -826,7 +828,7 @@ xfs_dir2_data_make_free(
 	 * The entry before us is free, merge with it.
 	 */
 	else if (prevdup) {
-		dfp = xfs_dir2_data_freefind(hdr, prevdup);
+		dfp = xfs_dir2_data_freefind(hdr, bf, prevdup);
 		be16_add_cpu(&prevdup->length, len);
 		*xfs_dir2_data_unused_tag_p(prevdup) =
 			cpu_to_be16((char *)prevdup - (char *)hdr);
@@ -837,8 +839,8 @@ xfs_dir2_data_make_free(
 		 * the old one and add the new one.
 		 */
 		if (dfp) {
-			xfs_dir2_data_freeremove(hdr, dfp, needlogp);
-			xfs_dir2_data_freeinsert(hdr, prevdup, needlogp);
+			xfs_dir2_data_freeremove(hdr, bf, dfp, needlogp);
+			xfs_dir2_data_freeinsert(hdr, bf, prevdup, needlogp);
 		}
 		/*
 		 * Otherwise we need a scan if the new entry is big enough.
@@ -852,7 +854,7 @@ xfs_dir2_data_make_free(
 	 * The following entry is free, merge with it.
 	 */
 	else if (postdup) {
-		dfp = xfs_dir2_data_freefind(hdr, postdup);
+		dfp = xfs_dir2_data_freefind(hdr, bf, postdup);
 		newdup = (xfs_dir2_data_unused_t *)((char *)hdr + offset);
 		newdup->freetag = cpu_to_be16(XFS_DIR2_DATA_FREE_TAG);
 		newdup->length = cpu_to_be16(len + be16_to_cpu(postdup->length));
@@ -865,8 +867,8 @@ xfs_dir2_data_make_free(
 		 * the old one and add the new one.
 		 */
 		if (dfp) {
-			xfs_dir2_data_freeremove(hdr, dfp, needlogp);
-			xfs_dir2_data_freeinsert(hdr, newdup, needlogp);
+			xfs_dir2_data_freeremove(hdr, bf, dfp, needlogp);
+			xfs_dir2_data_freeinsert(hdr, bf, newdup, needlogp);
 		}
 		/*
 		 * Otherwise we need a scan if the new entry is big enough.
@@ -886,7 +888,7 @@ xfs_dir2_data_make_free(
 		*xfs_dir2_data_unused_tag_p(newdup) =
 			cpu_to_be16((char *)newdup - (char *)hdr);
 		xfs_dir2_data_log_unused(tp, bp, newdup);
-		xfs_dir2_data_freeinsert(hdr, newdup, needlogp);
+		xfs_dir2_data_freeinsert(hdr, bf, newdup, needlogp);
 	}
 	*needscanp = needscan;
 }
@@ -897,6 +899,7 @@ xfs_dir2_data_make_free(
 void
 xfs_dir2_data_use_free(
 	struct xfs_trans	*tp,
+	struct xfs_inode	*dp,
 	struct xfs_buf		*bp,
 	xfs_dir2_data_unused_t	*dup,		/* unused entry */
 	xfs_dir2_data_aoff_t	offset,		/* starting offset to use */
@@ -926,9 +929,9 @@ xfs_dir2_data_use_free(
 	/*
 	 * Look up the entry in the bestfree table.
 	 */
-	dfp = xfs_dir2_data_freefind(hdr, dup);
 	oldlen = be16_to_cpu(dup->length);
-	bf = xfs_dir3_data_bestfree_p(hdr);
+	bf = dp->d_ops->data_bestfree_p(hdr);
+	dfp = xfs_dir2_data_freefind(hdr, bf, dup);
 	ASSERT(dfp || oldlen <= be16_to_cpu(bf[2].length));
 	/*
 	 * Check for alignment with front and back of the entry.
@@ -945,7 +948,8 @@ xfs_dir2_data_use_free(
 		if (dfp) {
 			needscan = (bf[2].offset != 0);
 			if (!needscan)
-				xfs_dir2_data_freeremove(hdr, dfp, needlogp);
+				xfs_dir2_data_freeremove(hdr, bf, dfp,
+							 needlogp);
 		}
 	}
 	/*
@@ -963,8 +967,9 @@ xfs_dir2_data_use_free(
 		 * If it was in the table, remove it and add the new one.
 		 */
 		if (dfp) {
-			xfs_dir2_data_freeremove(hdr, dfp, needlogp);
-			dfp = xfs_dir2_data_freeinsert(hdr, newdup, needlogp);
+			xfs_dir2_data_freeremove(hdr, bf, dfp, needlogp);
+			dfp = xfs_dir2_data_freeinsert(hdr, bf, newdup,
+						       needlogp);
 			ASSERT(dfp != NULL);
 			ASSERT(dfp->length == newdup->length);
 			ASSERT(be16_to_cpu(dfp->offset) == (char *)newdup - (char *)hdr);
@@ -990,8 +995,9 @@ xfs_dir2_data_use_free(
 		 * If it was in the table, remove it and add the new one.
 		 */
 		if (dfp) {
-			xfs_dir2_data_freeremove(hdr, dfp, needlogp);
-			dfp = xfs_dir2_data_freeinsert(hdr, newdup, needlogp);
+			xfs_dir2_data_freeremove(hdr, bf, dfp, needlogp);
+			dfp = xfs_dir2_data_freeinsert(hdr, bf, newdup,
+						       needlogp);
 			ASSERT(dfp != NULL);
 			ASSERT(dfp->length == newdup->length);
 			ASSERT(be16_to_cpu(dfp->offset) == (char *)newdup - (char *)hdr);
@@ -1030,9 +1036,11 @@ xfs_dir2_data_use_free(
 		if (dfp) {
 			needscan = (bf[2].length != 0);
 			if (!needscan) {
-				xfs_dir2_data_freeremove(hdr, dfp, needlogp);
-				xfs_dir2_data_freeinsert(hdr, newdup, needlogp);
-				xfs_dir2_data_freeinsert(hdr, newdup2,
+				xfs_dir2_data_freeremove(hdr, bf, dfp,
+							 needlogp);
+				xfs_dir2_data_freeinsert(hdr, bf, newdup,
+							 needlogp);
+				xfs_dir2_data_freeinsert(hdr, bf, newdup2,
 							 needlogp);
 			}
 		}
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
index dd195363ccf2..f35b3942c1a6 100644
--- a/fs/xfs/xfs_dir2_leaf.c
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -460,7 +460,7 @@ xfs_dir2_block_to_leaf(
 	xfs_dir3_data_check(dp, dbp);
 	btp = xfs_dir2_block_tail_p(mp, hdr);
 	blp = xfs_dir2_block_leaf_p(btp);
-	bf = xfs_dir3_data_bestfree_p(hdr);
+	bf = dp->d_ops->data_bestfree_p(hdr);
 	ents = xfs_dir3_leaf_ents_p(leaf);
 
 	/*
@@ -484,7 +484,7 @@ xfs_dir2_block_to_leaf(
 	 * Make the space formerly occupied by the leaf entries and block
 	 * tail be free.
 	 */
-	xfs_dir2_data_make_free(tp, dbp,
+	xfs_dir2_data_make_free(tp, dp, dbp,
 		(xfs_dir2_data_aoff_t)((char *)blp - (char *)hdr),
 		(xfs_dir2_data_aoff_t)((char *)hdr + mp->m_dirblksize -
 				       (char *)blp),
@@ -512,7 +512,7 @@ xfs_dir2_block_to_leaf(
 	 * Log the data header and leaf bests table.
 	 */
 	if (needlog)
-		xfs_dir2_data_log_header(tp, dbp);
+		xfs_dir2_data_log_header(tp, dp, dbp);
 	xfs_dir3_leaf_check(mp, lbp);
 	xfs_dir3_data_check(dp, dbp);
 	xfs_dir3_leaf_log_bests(tp, lbp, 0, 0);
@@ -862,7 +862,7 @@ xfs_dir2_leaf_addname(
 		else
 			xfs_dir3_leaf_log_bests(tp, lbp, use_block, use_block);
 		hdr = dbp->b_addr;
-		bf = xfs_dir3_data_bestfree_p(hdr);
+		bf = dp->d_ops->data_bestfree_p(hdr);
 		bestsp[use_block] = bf[0].length;
 		grown = 1;
 	} else {
@@ -878,7 +878,7 @@ xfs_dir2_leaf_addname(
 			return error;
 		}
 		hdr = dbp->b_addr;
-		bf = xfs_dir3_data_bestfree_p(hdr);
+		bf = dp->d_ops->data_bestfree_p(hdr);
 		grown = 0;
 	}
 	/*
@@ -891,7 +891,7 @@ xfs_dir2_leaf_addname(
 	/*
 	 * Mark the initial part of our freespace in use for the new entry.
 	 */
-	xfs_dir2_data_use_free(tp, dbp, dup,
+	xfs_dir2_data_use_free(tp, dp, dbp, dup,
 		(xfs_dir2_data_aoff_t)((char *)dup - (char *)hdr), length,
 		&needlog, &needscan);
 	/*
@@ -913,7 +913,7 @@ xfs_dir2_leaf_addname(
 	 * Need to log the data block's header.
 	 */
 	if (needlog)
-		xfs_dir2_data_log_header(tp, dbp);
+		xfs_dir2_data_log_header(tp, dp, dbp);
 	xfs_dir2_data_log_entry(tp, dp, dbp, dep);
 	/*
 	 * If the bests table needs to be changed, do it.
@@ -1413,7 +1413,7 @@ xfs_dir2_leaf_removename(
 	leaf = lbp->b_addr;
 	hdr = dbp->b_addr;
 	xfs_dir3_data_check(dp, dbp);
-	bf = xfs_dir3_data_bestfree_p(hdr);
+	bf = dp->d_ops->data_bestfree_p(hdr);
 	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
 	ents = xfs_dir3_leaf_ents_p(leaf);
 	/*
@@ -1431,7 +1431,7 @@ xfs_dir2_leaf_removename(
 	/*
 	 * Mark the former data entry unused.
 	 */
-	xfs_dir2_data_make_free(tp, dbp,
+	xfs_dir2_data_make_free(tp, dp, dbp,
 		(xfs_dir2_data_aoff_t)((char *)dep - (char *)hdr),
 		dp->d_ops->data_entsize(dep->namelen), &needlog, &needscan);
 	/*
@@ -1451,7 +1451,7 @@ xfs_dir2_leaf_removename(
 	if (needscan)
 		xfs_dir2_data_freescan(dp, hdr, &needlog);
 	if (needlog)
-		xfs_dir2_data_log_header(tp, dbp);
+		xfs_dir2_data_log_header(tp, dp, dbp);
 	/*
 	 * If the longest freespace in the data block has changed,
 	 * put the new value in the bests table and log that.
@@ -1465,7 +1465,7 @@ xfs_dir2_leaf_removename(
 	 * If the data block is now empty then get rid of the data block.
 	 */
 	if (be16_to_cpu(bf[0].length) ==
-			mp->m_dirblksize - xfs_dir3_data_entry_offset(hdr)) {
+			mp->m_dirblksize - dp->d_ops->data_entry_offset()) {
 		ASSERT(db != mp->m_dirdatablk);
 		if ((error = xfs_dir2_shrink_inode(args, db, dbp))) {
 			/*
@@ -1659,12 +1659,12 @@ xfs_dir2_leaf_trim_data(
 #ifdef DEBUG
 {
 	struct xfs_dir2_data_hdr *hdr = dbp->b_addr;
-	struct xfs_dir2_data_free *bf = xfs_dir3_data_bestfree_p(hdr);
+	struct xfs_dir2_data_free *bf = dp->d_ops->data_bestfree_p(hdr);
 
 	ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) ||
 	       hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC));
 	ASSERT(be16_to_cpu(bf[0].length) ==
-	       mp->m_dirblksize - xfs_dir3_data_entry_offset(hdr));
+	       mp->m_dirblksize - dp->d_ops->data_entry_offset());
 	ASSERT(db == be32_to_cpu(ltp->bestcount) - 1);
 }
 #endif
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index a1d133981c14..9cfc00323b19 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -1255,10 +1255,10 @@ xfs_dir2_leafn_remove(
 	dbp = dblk->bp;
 	hdr = dbp->b_addr;
 	dep = (xfs_dir2_data_entry_t *)((char *)hdr + off);
-	bf = xfs_dir3_data_bestfree_p(hdr);
+	bf = dp->d_ops->data_bestfree_p(hdr);
 	longest = be16_to_cpu(bf[0].length);
 	needlog = needscan = 0;
-	xfs_dir2_data_make_free(tp, dbp, off,
+	xfs_dir2_data_make_free(tp, dp, dbp, off,
 		dp->d_ops->data_entsize(dep->namelen), &needlog, &needscan);
 	/*
 	 * Rescan the data block freespaces for bestfree.
@@ -1267,7 +1267,7 @@ xfs_dir2_leafn_remove(
 	if (needscan)
 		xfs_dir2_data_freescan(dp, hdr, &needlog);
 	if (needlog)
-		xfs_dir2_data_log_header(tp, dbp);
+		xfs_dir2_data_log_header(tp, dp, dbp);
 	xfs_dir3_data_check(dp, dbp);
 	/*
 	 * If the longest data block freespace changes, need to update
@@ -1308,7 +1308,7 @@ xfs_dir2_leafn_remove(
 		 * (usually).
 		 */
 		if (longest == mp->m_dirblksize -
-			       xfs_dir3_data_entry_offset(hdr)) {
+			       dp->d_ops->data_entry_offset()) {
 			/*
 			 * Try to punch out the data block.
 			 */
@@ -1962,7 +1962,7 @@ xfs_dir2_node_addname_int(
 		 * change again.
 		 */
 		hdr = dbp->b_addr;
-		bf = xfs_dir3_data_bestfree_p(hdr);
+		bf = dp->d_ops->data_bestfree_p(hdr);
 		bests[findex] = bf[0].length;
 		logfree = 1;
 	}
@@ -1984,7 +1984,7 @@ xfs_dir2_node_addname_int(
 		if (error)
 			return error;
 		hdr = dbp->b_addr;
-		bf = xfs_dir3_data_bestfree_p(hdr);
+		bf = dp->d_ops->data_bestfree_p(hdr);
 		logfree = 0;
 	}
 	ASSERT(be16_to_cpu(bf[0].length) >= length);
@@ -1997,7 +1997,7 @@ xfs_dir2_node_addname_int(
 	/*
 	 * Mark the first part of the unused space, inuse for us.
 	 */
-	xfs_dir2_data_use_free(tp, dbp, dup,
+	xfs_dir2_data_use_free(tp, dp, dbp, dup,
 		(xfs_dir2_data_aoff_t)((char *)dup - (char *)hdr), length,
 		&needlog, &needscan);
 	/*
@@ -2020,7 +2020,7 @@ xfs_dir2_node_addname_int(
 	 * Log the data block header if needed.
 	 */
 	if (needlog)
-		xfs_dir2_data_log_header(tp, dbp);
+		xfs_dir2_data_log_header(tp, dp, dbp);
 	/*
 	 * If the freespace entry is now wrong, update it.
 	 */
diff --git a/fs/xfs/xfs_dir2_priv.h b/fs/xfs/xfs_dir2_priv.h
index 1bad84c40829..9a69f206daf9 100644
--- a/fs/xfs/xfs_dir2_priv.h
+++ b/fs/xfs/xfs_dir2_priv.h
@@ -59,7 +59,8 @@ extern int xfs_dir3_data_readahead(struct xfs_trans *tp, struct xfs_inode *dp,
 
 extern struct xfs_dir2_data_free *
 xfs_dir2_data_freeinsert(struct xfs_dir2_data_hdr *hdr,
-		struct xfs_dir2_data_unused *dup, int *loghead);
+		struct xfs_dir2_data_free *bf, struct xfs_dir2_data_unused *dup,
+		int *loghead);
 extern int xfs_dir3_data_init(struct xfs_da_args *args, xfs_dir2_db_t blkno,
 		struct xfs_buf **bpp);
 
diff --git a/fs/xfs/xfs_dir2_readdir.c b/fs/xfs/xfs_dir2_readdir.c
index b99aa7d48e90..f45ecac821ec 100644
--- a/fs/xfs/xfs_dir2_readdir.c
+++ b/fs/xfs/xfs_dir2_readdir.c
@@ -213,7 +213,7 @@ xfs_dir2_block_getdents(
 	 * Set up values for the loop.
 	 */
 	btp = xfs_dir2_block_tail_p(mp, hdr);
-	ptr = (char *)xfs_dir3_data_entry_p(hdr);
+	ptr = (char *)dp->d_ops->data_entry_p(hdr);
 	endptr = (char *)xfs_dir2_block_leaf_p(btp);
 
 	/*
@@ -578,13 +578,13 @@ xfs_dir2_leaf_getdents(
 			/*
 			 * Find our position in the block.
 			 */
-			ptr = (char *)xfs_dir3_data_entry_p(hdr);
+			ptr = (char *)dp->d_ops->data_entry_p(hdr);
 			byteoff = xfs_dir2_byte_to_off(mp, curoff);
 			/*
 			 * Skip past the header.
 			 */
 			if (byteoff == 0)
-				curoff += xfs_dir3_data_entry_offset(hdr);
+				curoff += dp->d_ops->data_entry_offset();
 			/*
 			 * Skip past entries until we reach our offset.
 			 */
diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c
index 953e19479151..42bbcff15cc5 100644
--- a/fs/xfs/xfs_dir2_sf.c
+++ b/fs/xfs/xfs_dir2_sf.c
@@ -210,7 +210,7 @@ xfs_dir2_block_to_sf(
 	 * Set up to loop over the block's entries.
 	 */
 	btp = xfs_dir2_block_tail_p(mp, hdr);
-	ptr = (char *)xfs_dir3_data_entry_p(hdr);
+	ptr = (char *)dp->d_ops->data_entry_p(hdr);
 	endptr = (char *)xfs_dir2_block_leaf_p(btp);
 	sfep = xfs_dir2_sf_firstentry(sfp);
 	/*
-- 
cgit 


From 4141956ae05e0685b14b30f92fdc8fb11b4a0cb2 Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 29 Oct 2013 22:11:50 +1100
Subject: xfs: vectorise directory leaf operations

Next step in the vectorisation process is the leaf block
encode/decode operations. Most of the operations on leaves are
handled by the data block vectors, so there are relatively few of
them here.

Because of all the shuffling of code and having to pass more state
to some functions, this patch doesn't directly reduce the size of
the binary. It does open up many more opportunities for factoring
and optimisation, however.

   text    data     bss     dec     hex filename
 794490   96802    1096  892388   d9de4 fs/xfs/xfs.o.orig
 792986   96802    1096  890884   d9804 fs/xfs/xfs.o.p1
 792350   96802    1096  890248   d9588 fs/xfs/xfs.o.p2
 789293   96802    1096  887191   d8997 fs/xfs/xfs.o.p3
 789005   96802    1096  886903   d8997 fs/xfs/xfs.o.p4
 789061   96802    1096  886959   d88af fs/xfs/xfs.o.p5

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_da_btree.c   |  19 ++++----
 fs/xfs/xfs_da_format.c  |  75 +++++++++++++++++++++++++++++++
 fs/xfs/xfs_da_format.h  |  30 -------------
 fs/xfs/xfs_dir2.c       |   7 +--
 fs/xfs/xfs_dir2.h       |  10 +++--
 fs/xfs/xfs_dir2_block.c |   2 +-
 fs/xfs/xfs_dir2_data.c  |  13 ++----
 fs/xfs/xfs_dir2_leaf.c  |  91 ++++++++++++++++++++-----------------
 fs/xfs/xfs_dir2_node.c  | 117 ++++++++++++++++++++++++++----------------------
 fs/xfs/xfs_dir2_priv.h  |  13 +++---
 10 files changed, 218 insertions(+), 159 deletions(-)

diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index eb65c546ffd8..df3759c51470 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -605,7 +605,7 @@ xfs_da3_root_split(
 
 		leaf = (xfs_dir2_leaf_t *)oldroot;
 		xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
-		ents = xfs_dir3_leaf_ents_p(leaf);
+		ents = dp->d_ops->leaf_ents_p(leaf);
 
 		ASSERT(leafhdr.magic == XFS_DIR2_LEAFN_MAGIC ||
 		       leafhdr.magic == XFS_DIR3_LEAFN_MAGIC);
@@ -1319,7 +1319,8 @@ xfs_da3_fixhashpath(
 			return;
 		break;
 	case XFS_DIR2_LEAFN_MAGIC:
-		lasthash = xfs_dir2_leafn_lasthash(blk->bp, &count);
+		lasthash = xfs_dir2_leafn_lasthash(state->args->dp,
+						   blk->bp, &count);
 		if (count == 0)
 			return;
 		break;
@@ -1536,7 +1537,8 @@ xfs_da3_node_lookup_int(
 		if (blk->magic == XFS_DIR2_LEAFN_MAGIC ||
 		    blk->magic == XFS_DIR3_LEAFN_MAGIC) {
 			blk->magic = XFS_DIR2_LEAFN_MAGIC;
-			blk->hashval = xfs_dir2_leafn_lasthash(blk->bp, NULL);
+			blk->hashval = xfs_dir2_leafn_lasthash(args->dp,
+							       blk->bp, NULL);
 			break;
 		}
 
@@ -1702,7 +1704,7 @@ xfs_da3_blk_link(
 		before = xfs_attr_leaf_order(old_blk->bp, new_blk->bp);
 		break;
 	case XFS_DIR2_LEAFN_MAGIC:
-		before = xfs_dir2_leafn_order(old_blk->bp, new_blk->bp);
+		before = xfs_dir2_leafn_order(args->dp, old_blk->bp, new_blk->bp);
 		break;
 	case XFS_DA_NODE_MAGIC:
 		before = xfs_da3_node_order(old_blk->bp, new_blk->bp);
@@ -1947,16 +1949,15 @@ xfs_da3_path_shift(
 			blk->magic = XFS_ATTR_LEAF_MAGIC;
 			ASSERT(level == path->active-1);
 			blk->index = 0;
-			blk->hashval = xfs_attr_leaf_lasthash(blk->bp,
-							      NULL);
+			blk->hashval = xfs_attr_leaf_lasthash(blk->bp, NULL);
 			break;
 		case XFS_DIR2_LEAFN_MAGIC:
 		case XFS_DIR3_LEAFN_MAGIC:
 			blk->magic = XFS_DIR2_LEAFN_MAGIC;
 			ASSERT(level == path->active-1);
 			blk->index = 0;
-			blk->hashval = xfs_dir2_leafn_lasthash(blk->bp,
-							       NULL);
+			blk->hashval = xfs_dir2_leafn_lasthash(args->dp,
+							       blk->bp, NULL);
 			break;
 		default:
 			ASSERT(0);
@@ -2223,7 +2224,7 @@ xfs_da3_swap_lastblock(
 
 		dead_leaf2 = (xfs_dir2_leaf_t *)dead_info;
 		xfs_dir3_leaf_hdr_from_disk(&leafhdr, dead_leaf2);
-		ents = xfs_dir3_leaf_ents_p(dead_leaf2);
+		ents = ip->d_ops->leaf_ents_p(dead_leaf2);
 		dead_level = 0;
 		dead_hash = be32_to_cpu(ents[leafhdr.count - 1].hashval);
 	} else {
diff --git a/fs/xfs/xfs_da_format.c b/fs/xfs/xfs_da_format.c
index 1e92a241fd52..ff8b50368c94 100644
--- a/fs/xfs/xfs_da_format.c
+++ b/fs/xfs/xfs_da_format.c
@@ -435,6 +435,48 @@ xfs_dir3_data_unused_p(struct xfs_dir2_data_hdr *hdr)
 		((char *)hdr + xfs_dir3_data_entry_offset());
 }
 
+
+/*
+ * Directory Leaf block operations
+ */
+static int
+xfs_dir2_leaf_hdr_size(void)
+{
+	return sizeof(struct xfs_dir2_leaf_hdr);
+}
+
+static int
+xfs_dir2_max_leaf_ents(struct xfs_mount *mp)
+{
+	return (mp->m_dirblksize - xfs_dir2_leaf_hdr_size()) /
+		(uint)sizeof(struct xfs_dir2_leaf_entry);
+}
+
+static struct xfs_dir2_leaf_entry *
+xfs_dir2_leaf_ents_p(struct xfs_dir2_leaf *lp)
+{
+	return lp->__ents;
+}
+
+static int
+xfs_dir3_leaf_hdr_size(void)
+{
+	return sizeof(struct xfs_dir3_leaf_hdr);
+}
+
+static inline int
+xfs_dir3_max_leaf_ents(struct xfs_mount *mp)
+{
+	return (mp->m_dirblksize - xfs_dir3_leaf_hdr_size()) /
+		(uint)sizeof(struct xfs_dir2_leaf_entry);
+}
+
+static inline struct xfs_dir2_leaf_entry *
+xfs_dir3_leaf_ents_p(struct xfs_dir2_leaf *lp)
+{
+	return ((struct xfs_dir3_leaf *)lp)->__ents;
+}
+
 const struct xfs_dir_ops xfs_dir2_ops = {
 	.sf_entsize = xfs_dir2_sf_entsize,
 	.sf_nextentry = xfs_dir2_sf_nextentry,
@@ -462,6 +504,10 @@ const struct xfs_dir_ops xfs_dir2_ops = {
 	.data_entry_p = xfs_dir2_data_entry_p,
 	.data_unused_p = xfs_dir2_data_unused_p,
 
+	.leaf_hdr_size = xfs_dir2_leaf_hdr_size,
+	.leaf_max_ents = xfs_dir2_max_leaf_ents,
+	.leaf_ents_p = xfs_dir2_leaf_ents_p,
+
 };
 
 const struct xfs_dir_ops xfs_dir2_ftype_ops = {
@@ -490,6 +536,10 @@ const struct xfs_dir_ops xfs_dir2_ftype_ops = {
 	.data_first_entry_p = xfs_dir2_data_first_entry_p,
 	.data_entry_p = xfs_dir2_data_entry_p,
 	.data_unused_p = xfs_dir2_data_unused_p,
+
+	.leaf_hdr_size = xfs_dir2_leaf_hdr_size,
+	.leaf_max_ents = xfs_dir2_max_leaf_ents,
+	.leaf_ents_p = xfs_dir2_leaf_ents_p,
 };
 
 const struct xfs_dir_ops xfs_dir3_ops = {
@@ -518,4 +568,29 @@ const struct xfs_dir_ops xfs_dir3_ops = {
 	.data_first_entry_p = xfs_dir3_data_first_entry_p,
 	.data_entry_p = xfs_dir3_data_entry_p,
 	.data_unused_p = xfs_dir3_data_unused_p,
+
+	.leaf_hdr_size = xfs_dir3_leaf_hdr_size,
+	.leaf_max_ents = xfs_dir3_max_leaf_ents,
+	.leaf_ents_p = xfs_dir3_leaf_ents_p,
 };
+
+/*
+ * Return the ops structure according to the current config.  If we are passed
+ * an inode, then that overrides the default config we use which is based on
+ * feature bits.
+ */
+const struct xfs_dir_ops *
+xfs_dir_get_ops(
+	struct xfs_mount	*mp,
+	struct xfs_inode	*dp)
+{
+	if (dp)
+		return dp->d_ops;
+	if (mp->m_dir_inode_ops)
+		return mp->m_dir_inode_ops;
+	if (xfs_sb_version_hascrc(&mp->m_sb))
+		return &xfs_dir3_ops;
+	if (xfs_sb_version_hasftype(&mp->m_sb))
+		return &xfs_dir2_ftype_ops;
+	return &xfs_dir2_ops;
+}
diff --git a/fs/xfs/xfs_da_format.h b/fs/xfs/xfs_da_format.h
index aeca0038a013..0a567e25cf59 100644
--- a/fs/xfs/xfs_da_format.h
+++ b/fs/xfs/xfs_da_format.h
@@ -551,36 +551,6 @@ struct xfs_dir3_leaf {
 extern void xfs_dir3_leaf_hdr_from_disk(struct xfs_dir3_icleaf_hdr *to,
 					struct xfs_dir2_leaf *from);
 
-static inline int
-xfs_dir3_leaf_hdr_size(struct xfs_dir2_leaf *lp)
-{
-	if (lp->hdr.info.magic == cpu_to_be16(XFS_DIR3_LEAF1_MAGIC) ||
-	    lp->hdr.info.magic == cpu_to_be16(XFS_DIR3_LEAFN_MAGIC))
-		return sizeof(struct xfs_dir3_leaf_hdr);
-	return sizeof(struct xfs_dir2_leaf_hdr);
-}
-
-static inline int
-xfs_dir3_max_leaf_ents(struct xfs_mount *mp, struct xfs_dir2_leaf *lp)
-{
-	return (mp->m_dirblksize - xfs_dir3_leaf_hdr_size(lp)) /
-		(uint)sizeof(struct xfs_dir2_leaf_entry);
-}
-
-/*
- * Get address of the bestcount field in the single-leaf block.
- */
-static inline struct xfs_dir2_leaf_entry *
-xfs_dir3_leaf_ents_p(struct xfs_dir2_leaf *lp)
-{
-	if (lp->hdr.info.magic == cpu_to_be16(XFS_DIR3_LEAF1_MAGIC) ||
-	    lp->hdr.info.magic == cpu_to_be16(XFS_DIR3_LEAFN_MAGIC)) {
-		struct xfs_dir3_leaf *lp3 = (struct xfs_dir3_leaf *)lp;
-		return lp3->__ents;
-	}
-	return lp->__ents;
-}
-
 /*
  * Get address of the bestcount field in the single-leaf block.
  */
diff --git a/fs/xfs/xfs_dir2.c b/fs/xfs/xfs_dir2.c
index 7911136453cd..2b98a33ca383 100644
--- a/fs/xfs/xfs_dir2.c
+++ b/fs/xfs/xfs_dir2.c
@@ -113,12 +113,7 @@ xfs_dir_mount(
 	else
 		mp->m_dirnameops = &xfs_default_nameops;
 
-	if (xfs_sb_version_hascrc(&mp->m_sb))
-		mp->m_dir_inode_ops = &xfs_dir3_ops;
-	else if (xfs_sb_version_hasftype(&mp->m_sb))
-		mp->m_dir_inode_ops = &xfs_dir2_ftype_ops;
-	else
-		mp->m_dir_inode_ops = &xfs_dir2_ops;
+	mp->m_dir_inode_ops = xfs_dir_get_ops(mp, NULL);
 }
 
 /*
diff --git a/fs/xfs/xfs_dir2.h b/fs/xfs/xfs_dir2.h
index 076010a1376a..9ba9db731990 100644
--- a/fs/xfs/xfs_dir2.h
+++ b/fs/xfs/xfs_dir2.h
@@ -74,11 +74,15 @@ struct xfs_dir_ops {
 		(*data_entry_p)(struct xfs_dir2_data_hdr *hdr);
 	struct xfs_dir2_data_unused *
 		(*data_unused_p)(struct xfs_dir2_data_hdr *hdr);
+
+	int	(*leaf_hdr_size)(void);
+	int	(*leaf_max_ents)(struct xfs_mount *mp);
+	struct xfs_dir2_leaf_entry *
+		(*leaf_ents_p)(struct xfs_dir2_leaf *lp);
 };
 
-extern const struct xfs_dir_ops xfs_dir2_ops;
-extern const struct xfs_dir_ops xfs_dir2_ftype_ops;
-extern const struct xfs_dir_ops xfs_dir3_ops;
+extern const struct xfs_dir_ops *
+	xfs_dir_get_ops(struct xfs_mount *mp, struct xfs_inode *dp);
 
 /*
  * Generic directory interface routines
diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c
index f92ca5699342..75f815786b97 100644
--- a/fs/xfs/xfs_dir2_block.c
+++ b/fs/xfs/xfs_dir2_block.c
@@ -937,7 +937,7 @@ xfs_dir2_leaf_to_block(
 	mp = dp->i_mount;
 	leaf = lbp->b_addr;
 	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
-	ents = xfs_dir3_leaf_ents_p(leaf);
+	ents = dp->d_ops->leaf_ents_p(leaf);
 	ltp = xfs_dir2_leaf_tail_p(mp, leaf);
 
 	ASSERT(leafhdr.magic == XFS_DIR2_LEAF1_MAGIC ||
diff --git a/fs/xfs/xfs_dir2_data.c b/fs/xfs/xfs_dir2_data.c
index 13fa0d6b4ff7..32d657fbe6a4 100644
--- a/fs/xfs/xfs_dir2_data.c
+++ b/fs/xfs/xfs_dir2_data.c
@@ -68,17 +68,10 @@ __xfs_dir3_data_check(
 	hdr = bp->b_addr;
 
 	/*
-	 * We can be passed a null dp here from a verifier, so manually
-	 * configure the ops here in that case.
+	 * We can be passed a null dp here from a verifier, so we need to go the
+	 * hard way to get them.
 	 */
-	if (dp)
-		ops = dp->d_ops;
-	else if (xfs_sb_version_hascrc(&mp->m_sb))
-		ops = &xfs_dir3_ops;
-	else if (xfs_sb_version_hasftype(&mp->m_sb))
-		ops = &xfs_dir2_ftype_ops;
-	else
-		ops = &xfs_dir2_ops;
+	ops = xfs_dir_get_ops(mp, dp);
 
 	switch (hdr->magic) {
 	case cpu_to_be32(XFS_DIR3_BLOCK_MAGIC):
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
index f35b3942c1a6..16fdc0e627a7 100644
--- a/fs/xfs/xfs_dir2_leaf.c
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -50,15 +50,15 @@ static void xfs_dir3_leaf_log_tail(struct xfs_trans *tp, struct xfs_buf *bp);
  * Pop an assert if something is wrong.
  */
 #ifdef DEBUG
-#define	xfs_dir3_leaf_check(mp, bp) \
+#define	xfs_dir3_leaf_check(dp, bp) \
 do { \
-	if (!xfs_dir3_leaf1_check((mp), (bp))) \
+	if (!xfs_dir3_leaf1_check((dp), (bp))) \
 		ASSERT(0); \
 } while (0);
 
 STATIC bool
 xfs_dir3_leaf1_check(
-	struct xfs_mount	*mp,
+	struct xfs_inode	*dp,
 	struct xfs_buf		*bp)
 {
 	struct xfs_dir2_leaf	*leaf = bp->b_addr;
@@ -73,10 +73,10 @@ xfs_dir3_leaf1_check(
 	} else if (leafhdr.magic != XFS_DIR2_LEAF1_MAGIC)
 		return false;
 
-	return xfs_dir3_leaf_check_int(mp, &leafhdr, leaf);
+	return xfs_dir3_leaf_check_int(dp->i_mount, dp, &leafhdr, leaf);
 }
 #else
-#define	xfs_dir3_leaf_check(mp, bp)
+#define	xfs_dir3_leaf_check(dp, bp)
 #endif
 
 void
@@ -138,6 +138,7 @@ xfs_dir3_leaf_hdr_to_disk(
 bool
 xfs_dir3_leaf_check_int(
 	struct xfs_mount	*mp,
+	struct xfs_inode	*dp,
 	struct xfs_dir3_icleaf_hdr *hdr,
 	struct xfs_dir2_leaf	*leaf)
 {
@@ -145,8 +146,15 @@ xfs_dir3_leaf_check_int(
 	xfs_dir2_leaf_tail_t	*ltp;
 	int			stale;
 	int			i;
+	const struct xfs_dir_ops *ops;
 
-	ents = xfs_dir3_leaf_ents_p(leaf);
+	/*
+	 * we can be passed a null dp here from a verifier, so we need to go the
+	 * hard way to get them.
+	 */
+	ops = xfs_dir_get_ops(mp, dp);
+
+	ents = ops->leaf_ents_p(leaf);
 	ltp = xfs_dir2_leaf_tail_p(mp, leaf);
 
 	/*
@@ -154,7 +162,7 @@ xfs_dir3_leaf_check_int(
 	 * Should factor in the size of the bests table as well.
 	 * We can deduce a value for that from di_size.
 	 */
-	if (hdr->count > xfs_dir3_max_leaf_ents(mp, leaf))
+	if (hdr->count > ops->leaf_max_ents(mp))
 		return false;
 
 	/* Leaves and bests don't overlap in leaf format. */
@@ -213,7 +221,7 @@ xfs_dir3_leaf_verify(
 	}
 
 	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
-	return xfs_dir3_leaf_check_int(mp, &leafhdr, leaf);
+	return xfs_dir3_leaf_check_int(mp, NULL, &leafhdr, leaf);
 }
 
 static void
@@ -399,7 +407,7 @@ xfs_dir3_leaf_get_buf(
 		return error;
 
 	xfs_dir3_leaf_init(mp, tp, bp, dp->i_ino, magic);
-	xfs_dir3_leaf_log_header(tp, bp);
+	xfs_dir3_leaf_log_header(tp, dp, bp);
 	if (magic == XFS_DIR2_LEAF1_MAGIC)
 		xfs_dir3_leaf_log_tail(tp, bp);
 	*bpp = bp;
@@ -461,7 +469,7 @@ xfs_dir2_block_to_leaf(
 	btp = xfs_dir2_block_tail_p(mp, hdr);
 	blp = xfs_dir2_block_leaf_p(btp);
 	bf = dp->d_ops->data_bestfree_p(hdr);
-	ents = xfs_dir3_leaf_ents_p(leaf);
+	ents = dp->d_ops->leaf_ents_p(leaf);
 
 	/*
 	 * Set the counts in the leaf header.
@@ -470,14 +478,14 @@ xfs_dir2_block_to_leaf(
 	leafhdr.count = be32_to_cpu(btp->count);
 	leafhdr.stale = be32_to_cpu(btp->stale);
 	xfs_dir3_leaf_hdr_to_disk(leaf, &leafhdr);
-	xfs_dir3_leaf_log_header(tp, lbp);
+	xfs_dir3_leaf_log_header(tp, dp, lbp);
 
 	/*
 	 * Could compact these but I think we always do the conversion
 	 * after squeezing out stale entries.
 	 */
 	memcpy(ents, blp, be32_to_cpu(btp->count) * sizeof(xfs_dir2_leaf_entry_t));
-	xfs_dir3_leaf_log_ents(tp, lbp, 0, leafhdr.count - 1);
+	xfs_dir3_leaf_log_ents(tp, dp, lbp, 0, leafhdr.count - 1);
 	needscan = 0;
 	needlog = 1;
 	/*
@@ -513,7 +521,7 @@ xfs_dir2_block_to_leaf(
 	 */
 	if (needlog)
 		xfs_dir2_data_log_header(tp, dp, dbp);
-	xfs_dir3_leaf_check(mp, lbp);
+	xfs_dir3_leaf_check(dp, lbp);
 	xfs_dir3_data_check(dp, dbp);
 	xfs_dir3_leaf_log_bests(tp, lbp, 0, 0);
 	return 0;
@@ -697,7 +705,7 @@ xfs_dir2_leaf_addname(
 	index = xfs_dir2_leaf_search_hash(args, lbp);
 	leaf = lbp->b_addr;
 	ltp = xfs_dir2_leaf_tail_p(mp, leaf);
-	ents = xfs_dir3_leaf_ents_p(leaf);
+	ents = dp->d_ops->leaf_ents_p(leaf);
 	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
 	bestsp = xfs_dir2_leaf_bests_p(ltp);
 	length = dp->d_ops->data_entsize(args->namelen);
@@ -938,9 +946,9 @@ xfs_dir2_leaf_addname(
 	 * Log the leaf fields and give up the buffers.
 	 */
 	xfs_dir3_leaf_hdr_to_disk(leaf, &leafhdr);
-	xfs_dir3_leaf_log_header(tp, lbp);
-	xfs_dir3_leaf_log_ents(tp, lbp, lfloglow, lfloghigh);
-	xfs_dir3_leaf_check(mp, lbp);
+	xfs_dir3_leaf_log_header(tp, dp, lbp);
+	xfs_dir3_leaf_log_ents(tp, dp, lbp, lfloglow, lfloghigh);
+	xfs_dir3_leaf_check(dp, lbp);
 	xfs_dir3_data_check(dp, dbp);
 	return 0;
 }
@@ -968,7 +976,7 @@ xfs_dir3_leaf_compact(
 	/*
 	 * Compress out the stale entries in place.
 	 */
-	ents = xfs_dir3_leaf_ents_p(leaf);
+	ents = args->dp->d_ops->leaf_ents_p(leaf);
 	for (from = to = 0, loglow = -1; from < leafhdr->count; from++) {
 		if (ents[from].address == cpu_to_be32(XFS_DIR2_NULL_DATAPTR))
 			continue;
@@ -990,9 +998,10 @@ xfs_dir3_leaf_compact(
 	leafhdr->stale = 0;
 
 	xfs_dir3_leaf_hdr_to_disk(leaf, leafhdr);
-	xfs_dir3_leaf_log_header(args->trans, bp);
+	xfs_dir3_leaf_log_header(args->trans, args->dp, bp);
 	if (loglow != -1)
-		xfs_dir3_leaf_log_ents(args->trans, bp, loglow, to - 1);
+		xfs_dir3_leaf_log_ents(args->trans, args->dp, bp,
+				       loglow, to - 1);
 }
 
 /*
@@ -1119,10 +1128,11 @@ xfs_dir3_leaf_log_bests(
  */
 void
 xfs_dir3_leaf_log_ents(
-	xfs_trans_t		*tp,		/* transaction pointer */
-	struct xfs_buf		*bp,		/* leaf buffer */
-	int			first,		/* first entry to log */
-	int			last)		/* last entry to log */
+	struct xfs_trans	*tp,
+	struct xfs_inode	*dp,
+	struct xfs_buf		*bp,
+	int			first,
+	int			last)
 {
 	xfs_dir2_leaf_entry_t	*firstlep;	/* pointer to first entry */
 	xfs_dir2_leaf_entry_t	*lastlep;	/* pointer to last entry */
@@ -1134,7 +1144,7 @@ xfs_dir3_leaf_log_ents(
 	       leaf->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC) ||
 	       leaf->hdr.info.magic == cpu_to_be16(XFS_DIR3_LEAFN_MAGIC));
 
-	ents = xfs_dir3_leaf_ents_p(leaf);
+	ents = dp->d_ops->leaf_ents_p(leaf);
 	firstlep = &ents[first];
 	lastlep = &ents[last];
 	xfs_trans_log_buf(tp, bp, (uint)((char *)firstlep - (char *)leaf),
@@ -1147,6 +1157,7 @@ xfs_dir3_leaf_log_ents(
 void
 xfs_dir3_leaf_log_header(
 	struct xfs_trans	*tp,
+	struct xfs_inode	*dp,
 	struct xfs_buf		*bp)
 {
 	struct xfs_dir2_leaf	*leaf = bp->b_addr;
@@ -1157,7 +1168,7 @@ xfs_dir3_leaf_log_header(
 	       leaf->hdr.info.magic == cpu_to_be16(XFS_DIR3_LEAFN_MAGIC));
 
 	xfs_trans_log_buf(tp, bp, (uint)((char *)&leaf->hdr - (char *)leaf),
-			  xfs_dir3_leaf_hdr_size(leaf) - 1);
+			  dp->d_ops->leaf_hdr_size() - 1);
 }
 
 /*
@@ -1212,9 +1223,9 @@ xfs_dir2_leaf_lookup(
 	}
 	tp = args->trans;
 	dp = args->dp;
-	xfs_dir3_leaf_check(dp->i_mount, lbp);
+	xfs_dir3_leaf_check(dp, lbp);
 	leaf = lbp->b_addr;
-	ents = xfs_dir3_leaf_ents_p(leaf);
+	ents = dp->d_ops->leaf_ents_p(leaf);
 	/*
 	 * Get to the leaf entry and contained data entry address.
 	 */
@@ -1277,8 +1288,8 @@ xfs_dir2_leaf_lookup_int(
 
 	*lbpp = lbp;
 	leaf = lbp->b_addr;
-	xfs_dir3_leaf_check(mp, lbp);
-	ents = xfs_dir3_leaf_ents_p(leaf);
+	xfs_dir3_leaf_check(dp, lbp);
+	ents = dp->d_ops->leaf_ents_p(leaf);
 	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
 
 	/*
@@ -1415,7 +1426,7 @@ xfs_dir2_leaf_removename(
 	xfs_dir3_data_check(dp, dbp);
 	bf = dp->d_ops->data_bestfree_p(hdr);
 	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
-	ents = xfs_dir3_leaf_ents_p(leaf);
+	ents = dp->d_ops->leaf_ents_p(leaf);
 	/*
 	 * Point to the leaf entry, use that to point to the data entry.
 	 */
@@ -1439,10 +1450,10 @@ xfs_dir2_leaf_removename(
 	 */
 	leafhdr.stale++;
 	xfs_dir3_leaf_hdr_to_disk(leaf, &leafhdr);
-	xfs_dir3_leaf_log_header(tp, lbp);
+	xfs_dir3_leaf_log_header(tp, dp, lbp);
 
 	lep->address = cpu_to_be32(XFS_DIR2_NULL_DATAPTR);
-	xfs_dir3_leaf_log_ents(tp, lbp, index, index);
+	xfs_dir3_leaf_log_ents(tp, dp, lbp, index, index);
 
 	/*
 	 * Scan the freespace in the data block again if necessary,
@@ -1476,7 +1487,7 @@ xfs_dir2_leaf_removename(
 			 */
 			if (error == ENOSPC && args->total == 0)
 				error = 0;
-			xfs_dir3_leaf_check(mp, lbp);
+			xfs_dir3_leaf_check(dp, lbp);
 			return error;
 		}
 		dbp = NULL;
@@ -1510,7 +1521,7 @@ xfs_dir2_leaf_removename(
 	else if (db != mp->m_dirdatablk)
 		dbp = NULL;
 
-	xfs_dir3_leaf_check(mp, lbp);
+	xfs_dir3_leaf_check(dp, lbp);
 	/*
 	 * See if we can convert to block form.
 	 */
@@ -1545,7 +1556,7 @@ xfs_dir2_leaf_replace(
 	}
 	dp = args->dp;
 	leaf = lbp->b_addr;
-	ents = xfs_dir3_leaf_ents_p(leaf);
+	ents = dp->d_ops->leaf_ents_p(leaf);
 	/*
 	 * Point to the leaf entry, get data address from it.
 	 */
@@ -1564,7 +1575,7 @@ xfs_dir2_leaf_replace(
 	dp->d_ops->data_put_ftype(dep, args->filetype);
 	tp = args->trans;
 	xfs_dir2_data_log_entry(tp, dp, dbp, dep);
-	xfs_dir3_leaf_check(dp->i_mount, lbp);
+	xfs_dir3_leaf_check(dp, lbp);
 	xfs_trans_brelse(tp, lbp);
 	return 0;
 }
@@ -1590,7 +1601,7 @@ xfs_dir2_leaf_search_hash(
 	struct xfs_dir3_icleaf_hdr leafhdr;
 
 	leaf = lbp->b_addr;
-	ents = xfs_dir3_leaf_ents_p(leaf);
+	ents = args->dp->d_ops->leaf_ents_p(leaf);
 	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
 
 	/*
@@ -1830,10 +1841,10 @@ xfs_dir2_node_to_leaf(
 		freehdr.nvalid * sizeof(xfs_dir2_data_off_t));
 
 	xfs_dir3_leaf_hdr_to_disk(leaf, &leafhdr);
-	xfs_dir3_leaf_log_header(tp, lbp);
+	xfs_dir3_leaf_log_header(tp, dp, lbp);
 	xfs_dir3_leaf_log_bests(tp, lbp, 0, be32_to_cpu(ltp->bestcount) - 1);
 	xfs_dir3_leaf_log_tail(tp, lbp);
-	xfs_dir3_leaf_check(mp, lbp);
+	xfs_dir3_leaf_check(dp, lbp);
 
 	/*
 	 * Get rid of the freespace block.
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index 9cfc00323b19..3a426ed9b16e 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -54,15 +54,15 @@ static int xfs_dir2_node_addname_int(xfs_da_args_t *args,
  * Check internal consistency of a leafn block.
  */
 #ifdef DEBUG
-#define	xfs_dir3_leaf_check(mp, bp) \
+#define	xfs_dir3_leaf_check(dp, bp) \
 do { \
-	if (!xfs_dir3_leafn_check((mp), (bp))) \
+	if (!xfs_dir3_leafn_check((dp), (bp))) \
 		ASSERT(0); \
 } while (0);
 
 static bool
 xfs_dir3_leafn_check(
-	struct xfs_mount	*mp,
+	struct xfs_inode	*dp,
 	struct xfs_buf		*bp)
 {
 	struct xfs_dir2_leaf	*leaf = bp->b_addr;
@@ -77,10 +77,10 @@ xfs_dir3_leafn_check(
 	} else if (leafhdr.magic != XFS_DIR2_LEAFN_MAGIC)
 		return false;
 
-	return xfs_dir3_leaf_check_int(mp, &leafhdr, leaf);
+	return xfs_dir3_leaf_check_int(dp->i_mount, dp, &leafhdr, leaf);
 }
 #else
-#define	xfs_dir3_leaf_check(mp, bp)
+#define	xfs_dir3_leaf_check(dp, bp)
 #endif
 
 static bool
@@ -408,8 +408,8 @@ xfs_dir2_leaf_to_node(
 		leaf->hdr.info.magic = cpu_to_be16(XFS_DIR3_LEAFN_MAGIC);
 	lbp->b_ops = &xfs_dir3_leafn_buf_ops;
 	xfs_trans_buf_set_type(tp, lbp, XFS_BLFT_DIR_LEAFN_BUF);
-	xfs_dir3_leaf_log_header(tp, lbp);
-	xfs_dir3_leaf_check(mp, lbp);
+	xfs_dir3_leaf_log_header(tp, dp, lbp);
+	xfs_dir3_leaf_check(dp, lbp);
 	return 0;
 }
 
@@ -443,7 +443,7 @@ xfs_dir2_leafn_add(
 	tp = args->trans;
 	leaf = bp->b_addr;
 	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
-	ents = xfs_dir3_leaf_ents_p(leaf);
+	ents = dp->d_ops->leaf_ents_p(leaf);
 
 	/*
 	 * Quick check just to make sure we are not going to index
@@ -459,7 +459,7 @@ xfs_dir2_leafn_add(
 	 * a compact.
 	 */
 
-	if (leafhdr.count == xfs_dir3_max_leaf_ents(mp, leaf)) {
+	if (leafhdr.count == dp->d_ops->leaf_max_ents(mp)) {
 		if (!leafhdr.stale)
 			return XFS_ERROR(ENOSPC);
 		compact = leafhdr.stale > 1;
@@ -498,9 +498,9 @@ xfs_dir2_leafn_add(
 				args->blkno, args->index));
 
 	xfs_dir3_leaf_hdr_to_disk(leaf, &leafhdr);
-	xfs_dir3_leaf_log_header(tp, bp);
-	xfs_dir3_leaf_log_ents(tp, bp, lfloglow, lfloghigh);
-	xfs_dir3_leaf_check(mp, bp);
+	xfs_dir3_leaf_log_header(tp, dp, bp);
+	xfs_dir3_leaf_log_ents(tp, dp, bp, lfloglow, lfloghigh);
+	xfs_dir3_leaf_check(dp, bp);
 	return 0;
 }
 
@@ -529,6 +529,7 @@ xfs_dir2_free_hdr_check(
  */
 xfs_dahash_t					/* hash value */
 xfs_dir2_leafn_lasthash(
+	struct xfs_inode *dp,
 	struct xfs_buf	*bp,			/* leaf buffer */
 	int		*count)			/* count of entries in leaf */
 {
@@ -546,7 +547,7 @@ xfs_dir2_leafn_lasthash(
 	if (!leafhdr.count)
 		return 0;
 
-	ents = xfs_dir3_leaf_ents_p(leaf);
+	ents = dp->d_ops->leaf_ents_p(leaf);
 	return be32_to_cpu(ents[leafhdr.count - 1].hashval);
 }
 
@@ -584,9 +585,9 @@ xfs_dir2_leafn_lookup_for_addname(
 	mp = dp->i_mount;
 	leaf = bp->b_addr;
 	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
-	ents = xfs_dir3_leaf_ents_p(leaf);
+	ents = dp->d_ops->leaf_ents_p(leaf);
 
-	xfs_dir3_leaf_check(mp, bp);
+	xfs_dir3_leaf_check(dp, bp);
 	ASSERT(leafhdr.count > 0);
 
 	/*
@@ -734,9 +735,9 @@ xfs_dir2_leafn_lookup_for_entry(
 	mp = dp->i_mount;
 	leaf = bp->b_addr;
 	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
-	ents = xfs_dir3_leaf_ents_p(leaf);
+	ents = dp->d_ops->leaf_ents_p(leaf);
 
-	xfs_dir3_leaf_check(mp, bp);
+	xfs_dir3_leaf_check(dp, bp);
 	ASSERT(leafhdr.count > 0);
 
 	/*
@@ -906,7 +907,7 @@ xfs_dir3_leafn_moveents(
 	if (start_d < dhdr->count) {
 		memmove(&dents[start_d + count], &dents[start_d],
 			(dhdr->count - start_d) * sizeof(xfs_dir2_leaf_entry_t));
-		xfs_dir3_leaf_log_ents(tp, bp_d, start_d + count,
+		xfs_dir3_leaf_log_ents(tp, args->dp, bp_d, start_d + count,
 				       count + dhdr->count - 1);
 	}
 	/*
@@ -928,7 +929,8 @@ xfs_dir3_leafn_moveents(
 	 */
 	memcpy(&dents[start_d], &sents[start_s],
 		count * sizeof(xfs_dir2_leaf_entry_t));
-	xfs_dir3_leaf_log_ents(tp, bp_d, start_d, start_d + count - 1);
+	xfs_dir3_leaf_log_ents(tp, args->dp, bp_d,
+			       start_d, start_d + count - 1);
 
 	/*
 	 * If there are source entries after the ones we copied,
@@ -937,7 +939,8 @@ xfs_dir3_leafn_moveents(
 	if (start_s + count < shdr->count) {
 		memmove(&sents[start_s], &sents[start_s + count],
 			count * sizeof(xfs_dir2_leaf_entry_t));
-		xfs_dir3_leaf_log_ents(tp, bp_s, start_s, start_s + count - 1);
+		xfs_dir3_leaf_log_ents(tp, args->dp, bp_s,
+				       start_s, start_s + count - 1);
 	}
 
 	/*
@@ -955,6 +958,7 @@ xfs_dir3_leafn_moveents(
  */
 int						/* sort order */
 xfs_dir2_leafn_order(
+	struct xfs_inode	*dp,
 	struct xfs_buf		*leaf1_bp,		/* leaf1 buffer */
 	struct xfs_buf		*leaf2_bp)		/* leaf2 buffer */
 {
@@ -967,8 +971,8 @@ xfs_dir2_leafn_order(
 
 	xfs_dir3_leaf_hdr_from_disk(&hdr1, leaf1);
 	xfs_dir3_leaf_hdr_from_disk(&hdr2, leaf2);
-	ents1 = xfs_dir3_leaf_ents_p(leaf1);
-	ents2 = xfs_dir3_leaf_ents_p(leaf2);
+	ents1 = dp->d_ops->leaf_ents_p(leaf1);
+	ents2 = dp->d_ops->leaf_ents_p(leaf2);
 
 	if (hdr1.count > 0 && hdr2.count > 0 &&
 	    (be32_to_cpu(ents2[0].hashval) < be32_to_cpu(ents1[0].hashval) ||
@@ -1006,12 +1010,13 @@ xfs_dir2_leafn_rebalance(
 	struct xfs_dir2_leaf_entry *ents2;
 	struct xfs_dir3_icleaf_hdr hdr1;
 	struct xfs_dir3_icleaf_hdr hdr2;
+	struct xfs_inode	*dp = state->args->dp;
 
 	args = state->args;
 	/*
 	 * If the block order is wrong, swap the arguments.
 	 */
-	if ((swap = xfs_dir2_leafn_order(blk1->bp, blk2->bp))) {
+	if ((swap = xfs_dir2_leafn_order(dp, blk1->bp, blk2->bp))) {
 		xfs_da_state_blk_t	*tmp;	/* temp for block swap */
 
 		tmp = blk1;
@@ -1022,8 +1027,8 @@ xfs_dir2_leafn_rebalance(
 	leaf2 = blk2->bp->b_addr;
 	xfs_dir3_leaf_hdr_from_disk(&hdr1, leaf1);
 	xfs_dir3_leaf_hdr_from_disk(&hdr2, leaf2);
-	ents1 = xfs_dir3_leaf_ents_p(leaf1);
-	ents2 = xfs_dir3_leaf_ents_p(leaf2);
+	ents1 = dp->d_ops->leaf_ents_p(leaf1);
+	ents2 = dp->d_ops->leaf_ents_p(leaf2);
 
 	oldsum = hdr1.count + hdr2.count;
 #if defined(DEBUG) || defined(XFS_WARN)
@@ -1071,11 +1076,11 @@ xfs_dir2_leafn_rebalance(
 	/* log the changes made when moving the entries */
 	xfs_dir3_leaf_hdr_to_disk(leaf1, &hdr1);
 	xfs_dir3_leaf_hdr_to_disk(leaf2, &hdr2);
-	xfs_dir3_leaf_log_header(args->trans, blk1->bp);
-	xfs_dir3_leaf_log_header(args->trans, blk2->bp);
+	xfs_dir3_leaf_log_header(args->trans, dp, blk1->bp);
+	xfs_dir3_leaf_log_header(args->trans, dp, blk2->bp);
 
-	xfs_dir3_leaf_check(args->dp->i_mount, blk1->bp);
-	xfs_dir3_leaf_check(args->dp->i_mount, blk2->bp);
+	xfs_dir3_leaf_check(dp, blk1->bp);
+	xfs_dir3_leaf_check(dp, blk2->bp);
 
 	/*
 	 * Mark whether we're inserting into the old or new leaf.
@@ -1096,10 +1101,10 @@ xfs_dir2_leafn_rebalance(
 	 * Finally sanity check just to make sure we are not returning a
 	 * negative index
 	 */
-	if(blk2->index < 0) {
+	if (blk2->index < 0) {
 		state->inleaf = 1;
 		blk2->index = 0;
-		xfs_alert(args->dp->i_mount,
+		xfs_alert(dp->i_mount,
 	"%s: picked the wrong leaf? reverting original leaf: blk1->index %d",
 			__func__, blk1->index);
 	}
@@ -1222,7 +1227,7 @@ xfs_dir2_leafn_remove(
 	mp = dp->i_mount;
 	leaf = bp->b_addr;
 	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
-	ents = xfs_dir3_leaf_ents_p(leaf);
+	ents = dp->d_ops->leaf_ents_p(leaf);
 
 	/*
 	 * Point to the entry we're removing.
@@ -1243,10 +1248,10 @@ xfs_dir2_leafn_remove(
 	 */
 	leafhdr.stale++;
 	xfs_dir3_leaf_hdr_to_disk(leaf, &leafhdr);
-	xfs_dir3_leaf_log_header(tp, bp);
+	xfs_dir3_leaf_log_header(tp, dp, bp);
 
 	lep->address = cpu_to_be32(XFS_DIR2_NULL_DATAPTR);
-	xfs_dir3_leaf_log_ents(tp, bp, index, index);
+	xfs_dir3_leaf_log_ents(tp, dp, bp, index, index);
 
 	/*
 	 * Make the data entry free.  Keep track of the longest freespace
@@ -1335,12 +1340,12 @@ xfs_dir2_leafn_remove(
 			return error;
 	}
 
-	xfs_dir3_leaf_check(mp, bp);
+	xfs_dir3_leaf_check(dp, bp);
 	/*
 	 * Return indication of whether this leaf block is empty enough
 	 * to justify trying to join it with a neighbor.
 	 */
-	*rval = (xfs_dir3_leaf_hdr_size(leaf) +
+	*rval = (dp->d_ops->leaf_hdr_size() +
 		 (uint)sizeof(ents[0]) * (leafhdr.count - leafhdr.stale)) <
 		mp->m_dir_magicpct;
 	return 0;
@@ -1359,12 +1364,14 @@ xfs_dir2_leafn_split(
 	xfs_dablk_t		blkno;		/* new leaf block number */
 	int			error;		/* error return value */
 	xfs_mount_t		*mp;		/* filesystem mount point */
+	struct xfs_inode	*dp;
 
 	/*
 	 * Allocate space for a new leaf node.
 	 */
 	args = state->args;
-	mp = args->dp->i_mount;
+	dp = args->dp;
+	mp = dp->i_mount;
 	ASSERT(args != NULL);
 	ASSERT(oldblk->magic == XFS_DIR2_LEAFN_MAGIC);
 	error = xfs_da_grow_inode(args, &blkno);
@@ -1400,10 +1407,10 @@ xfs_dir2_leafn_split(
 	/*
 	 * Update last hashval in each block since we added the name.
 	 */
-	oldblk->hashval = xfs_dir2_leafn_lasthash(oldblk->bp, NULL);
-	newblk->hashval = xfs_dir2_leafn_lasthash(newblk->bp, NULL);
-	xfs_dir3_leaf_check(mp, oldblk->bp);
-	xfs_dir3_leaf_check(mp, newblk->bp);
+	oldblk->hashval = xfs_dir2_leafn_lasthash(dp, oldblk->bp, NULL);
+	newblk->hashval = xfs_dir2_leafn_lasthash(dp, newblk->bp, NULL);
+	xfs_dir3_leaf_check(dp, oldblk->bp);
+	xfs_dir3_leaf_check(dp, newblk->bp);
 	return error;
 }
 
@@ -1433,6 +1440,7 @@ xfs_dir2_leafn_toosmall(
 	int			rval;		/* result from path_shift */
 	struct xfs_dir3_icleaf_hdr leafhdr;
 	struct xfs_dir2_leaf_entry *ents;
+	struct xfs_inode	*dp = state->args->dp;
 
 	/*
 	 * Check for the degenerate case of the block being over 50% full.
@@ -1442,11 +1450,11 @@ xfs_dir2_leafn_toosmall(
 	blk = &state->path.blk[state->path.active - 1];
 	leaf = blk->bp->b_addr;
 	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
-	ents = xfs_dir3_leaf_ents_p(leaf);
-	xfs_dir3_leaf_check(state->args->dp->i_mount, blk->bp);
+	ents = dp->d_ops->leaf_ents_p(leaf);
+	xfs_dir3_leaf_check(dp, blk->bp);
 
 	count = leafhdr.count - leafhdr.stale;
-	bytes = xfs_dir3_leaf_hdr_size(leaf) + count * sizeof(ents[0]);
+	bytes = dp->d_ops->leaf_hdr_size() + count * sizeof(ents[0]);
 	if (bytes > (state->blocksize >> 1)) {
 		/*
 		 * Blk over 50%, don't try to join.
@@ -1491,7 +1499,7 @@ xfs_dir2_leafn_toosmall(
 		/*
 		 * Read the sibling leaf block.
 		 */
-		error = xfs_dir3_leafn_read(state->args->trans, state->args->dp,
+		error = xfs_dir3_leafn_read(state->args->trans, dp,
 					    blkno, -1, &bp);
 		if (error)
 			return error;
@@ -1504,7 +1512,7 @@ xfs_dir2_leafn_toosmall(
 
 		leaf = bp->b_addr;
 		xfs_dir3_leaf_hdr_from_disk(&hdr2, leaf);
-		ents = xfs_dir3_leaf_ents_p(leaf);
+		ents = dp->d_ops->leaf_ents_p(leaf);
 		count += hdr2.count - hdr2.stale;
 		bytes -= count * sizeof(ents[0]);
 
@@ -1558,6 +1566,7 @@ xfs_dir2_leafn_unbalance(
 	struct xfs_dir3_icleaf_hdr drophdr;
 	struct xfs_dir2_leaf_entry *sents;
 	struct xfs_dir2_leaf_entry *dents;
+	struct xfs_inode	*dp = state->args->dp;
 
 	args = state->args;
 	ASSERT(drop_blk->magic == XFS_DIR2_LEAFN_MAGIC);
@@ -1567,8 +1576,8 @@ xfs_dir2_leafn_unbalance(
 
 	xfs_dir3_leaf_hdr_from_disk(&savehdr, save_leaf);
 	xfs_dir3_leaf_hdr_from_disk(&drophdr, drop_leaf);
-	sents = xfs_dir3_leaf_ents_p(save_leaf);
-	dents = xfs_dir3_leaf_ents_p(drop_leaf);
+	sents = args->dp->d_ops->leaf_ents_p(save_leaf);
+	dents = args->dp->d_ops->leaf_ents_p(drop_leaf);
 
 	/*
 	 * If there are any stale leaf entries, take this opportunity
@@ -1583,7 +1592,7 @@ xfs_dir2_leafn_unbalance(
 	 * Move the entries from drop to the appropriate end of save.
 	 */
 	drop_blk->hashval = be32_to_cpu(dents[drophdr.count - 1].hashval);
-	if (xfs_dir2_leafn_order(save_blk->bp, drop_blk->bp))
+	if (xfs_dir2_leafn_order(dp, save_blk->bp, drop_blk->bp))
 		xfs_dir3_leafn_moveents(args, drop_blk->bp, &drophdr, dents, 0,
 					save_blk->bp, &savehdr, sents, 0,
 					drophdr.count);
@@ -1596,11 +1605,11 @@ xfs_dir2_leafn_unbalance(
 	/* log the changes made when moving the entries */
 	xfs_dir3_leaf_hdr_to_disk(save_leaf, &savehdr);
 	xfs_dir3_leaf_hdr_to_disk(drop_leaf, &drophdr);
-	xfs_dir3_leaf_log_header(args->trans, save_blk->bp);
-	xfs_dir3_leaf_log_header(args->trans, drop_blk->bp);
+	xfs_dir3_leaf_log_header(args->trans, dp, save_blk->bp);
+	xfs_dir3_leaf_log_header(args->trans, dp, drop_blk->bp);
 
-	xfs_dir3_leaf_check(args->dp->i_mount, save_blk->bp);
-	xfs_dir3_leaf_check(args->dp->i_mount, drop_blk->bp);
+	xfs_dir3_leaf_check(dp, save_blk->bp);
+	xfs_dir3_leaf_check(dp, drop_blk->bp);
 }
 
 /*
@@ -2211,7 +2220,7 @@ xfs_dir2_node_replace(
 		blk = &state->path.blk[state->path.active - 1];
 		ASSERT(blk->magic == XFS_DIR2_LEAFN_MAGIC);
 		leaf = blk->bp->b_addr;
-		ents = xfs_dir3_leaf_ents_p(leaf);
+		ents = args->dp->d_ops->leaf_ents_p(leaf);
 		lep = &ents[blk->index];
 		ASSERT(state->extravalid);
 		/*
diff --git a/fs/xfs/xfs_dir2_priv.h b/fs/xfs/xfs_dir2_priv.h
index 9a69f206daf9..3e4b5ba7b41f 100644
--- a/fs/xfs/xfs_dir2_priv.h
+++ b/fs/xfs/xfs_dir2_priv.h
@@ -77,9 +77,9 @@ extern void xfs_dir3_leaf_compact_x1(struct xfs_dir3_icleaf_hdr *leafhdr,
 		int *lowstalep, int *highstalep, int *lowlogp, int *highlogp);
 extern int xfs_dir3_leaf_get_buf(struct xfs_da_args *args, xfs_dir2_db_t bno,
 		struct xfs_buf **bpp, __uint16_t magic);
-extern void xfs_dir3_leaf_log_ents(struct xfs_trans *tp, struct xfs_buf *bp,
-		int first, int last);
-extern void xfs_dir3_leaf_log_header(struct xfs_trans *tp,
+extern void xfs_dir3_leaf_log_ents(struct xfs_trans *tp, struct xfs_inode *dp,
+		struct xfs_buf *bp, int first, int last);
+extern void xfs_dir3_leaf_log_header(struct xfs_trans *tp, struct xfs_inode *dp,
 		struct xfs_buf *bp);
 extern int xfs_dir2_leaf_lookup(struct xfs_da_args *args);
 extern int xfs_dir2_leaf_removename(struct xfs_da_args *args);
@@ -98,17 +98,18 @@ extern void xfs_dir3_leaf_hdr_from_disk(struct xfs_dir3_icleaf_hdr *to,
 		struct xfs_dir2_leaf *from);
 extern void xfs_dir3_leaf_hdr_to_disk(struct xfs_dir2_leaf *to,
 		struct xfs_dir3_icleaf_hdr *from);
-extern bool xfs_dir3_leaf_check_int(struct xfs_mount *mp,
+extern bool xfs_dir3_leaf_check_int(struct xfs_mount *mp, struct xfs_inode *dp,
 		struct xfs_dir3_icleaf_hdr *hdr, struct xfs_dir2_leaf *leaf);
 
 /* xfs_dir2_node.c */
 extern int xfs_dir2_leaf_to_node(struct xfs_da_args *args,
 		struct xfs_buf *lbp);
-extern xfs_dahash_t xfs_dir2_leafn_lasthash(struct xfs_buf *bp, int *count);
+extern xfs_dahash_t xfs_dir2_leafn_lasthash(struct xfs_inode *dp,
+		struct xfs_buf *bp, int *count);
 extern int xfs_dir2_leafn_lookup_int(struct xfs_buf *bp,
 		struct xfs_da_args *args, int *indexp,
 		struct xfs_da_state *state);
-extern int xfs_dir2_leafn_order(struct xfs_buf *leaf1_bp,
+extern int xfs_dir2_leafn_order(struct xfs_inode *dp, struct xfs_buf *leaf1_bp,
 		struct xfs_buf *leaf2_bp);
 extern int xfs_dir2_leafn_split(struct xfs_da_state *state,
 	struct xfs_da_state_blk *oldblk, struct xfs_da_state_blk *newblk);
-- 
cgit 


From 4bceb18f1551c8c047eeb54d48cda9f5453dc12f Mon Sep 17 00:00:00 2001
From: Dave Chinner <david@fromorbit.com>
Date: Tue, 29 Oct 2013 22:11:51 +1100
Subject: xfs: vectorise DA btree operations

The remaining non-vectorised code for the directory structure is the
node format blocks. This is shared with the attribute tree, and so
is slightly more complex to vectorise.

Introduce a "non-directory" directory ops structure that is attached
to all non-directory inodes so that attribute operations can be
vectorised for all inodes.

Once we do this, we can vectorise all the da btree operations.
Because this patch adds more infrastructure than it removes the
binary size does not decrease:

   text    data     bss     dec     hex filename
 794490   96802    1096  892388   d9de4 fs/xfs/xfs.o.orig
 792986   96802    1096  890884   d9804 fs/xfs/xfs.o.p1
 792350   96802    1096  890248   d9588 fs/xfs/xfs.o.p2
 789293   96802    1096  887191   d8997 fs/xfs/xfs.o.p3
 789005   96802    1096  886903   d8997 fs/xfs/xfs.o.p4
 789061   96802    1096  886959   d88af fs/xfs/xfs.o.p5
 789733   96802    1096  887631   d8b4f fs/xfs/xfs.o.p6

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_attr_inactive.c |   3 +-
 fs/xfs/xfs_attr_leaf.c     |   3 +-
 fs/xfs/xfs_attr_list.c     |  11 ++---
 fs/xfs/xfs_da_btree.c      | 104 +++++++++++++++++++++++++--------------------
 fs/xfs/xfs_da_format.c     |  59 +++++++++++++++++++++++++
 fs/xfs/xfs_da_format.h     |  25 -----------
 fs/xfs/xfs_dir2.c          |   7 ++-
 fs/xfs/xfs_dir2.h          |   6 +++
 fs/xfs/xfs_iops.c          |   1 +
 fs/xfs/xfs_mount.h         |   1 +
 10 files changed, 139 insertions(+), 81 deletions(-)

diff --git a/fs/xfs/xfs_attr_inactive.c b/fs/xfs/xfs_attr_inactive.c
index f33fb62b7f17..4855085f8c6b 100644
--- a/fs/xfs/xfs_attr_inactive.c
+++ b/fs/xfs/xfs_attr_inactive.c
@@ -40,6 +40,7 @@
 #include "xfs_quota.h"
 #include "xfs_trace.h"
 #include "xfs_dinode.h"
+#include "xfs_dir2.h"
 
 /*
  * Look at all the extents for this logical region,
@@ -236,7 +237,7 @@ xfs_attr3_node_inactive(
 		xfs_trans_brelse(*trans, bp);
 		return 0;
 	}
-	btree = xfs_da3_node_tree_p(node);
+	btree = dp->d_ops->node_tree_p(node);
 	child_fsb = be32_to_cpu(btree[0].before);
 	xfs_trans_brelse(*trans, bp);	/* no locks for later trans */
 
diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index a0f90193a247..82f1354c77b6 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -41,6 +41,7 @@
 #include "xfs_buf_item.h"
 #include "xfs_cksum.h"
 #include "xfs_dinode.h"
+#include "xfs_dir2.h"
 
 
 /*
@@ -916,7 +917,7 @@ xfs_attr3_leaf_to_node(
 		goto out;
 	node = bp1->b_addr;
 	xfs_da3_node_hdr_from_disk(&icnodehdr, node);
-	btree = xfs_da3_node_tree_p(node);
+	btree = dp->d_ops->node_tree_p(node);
 
 	leaf = bp2->b_addr;
 	xfs_attr3_leaf_hdr_from_disk(&icleafhdr, leaf);
diff --git a/fs/xfs/xfs_attr_list.c b/fs/xfs/xfs_attr_list.c
index 46c4ce148a43..ea1c4c46c24f 100644
--- a/fs/xfs/xfs_attr_list.c
+++ b/fs/xfs/xfs_attr_list.c
@@ -40,6 +40,7 @@
 #include "xfs_buf_item.h"
 #include "xfs_cksum.h"
 #include "xfs_dinode.h"
+#include "xfs_dir2.h"
 
 STATIC int
 xfs_attr_shortform_compare(const void *a, const void *b)
@@ -226,6 +227,7 @@ xfs_attr_node_list(xfs_attr_list_context_t *context)
 	struct xfs_da_node_entry *btree;
 	int error, i;
 	struct xfs_buf *bp;
+	struct xfs_inode	*dp = context->dp;
 
 	trace_xfs_attr_node_list(context);
 
@@ -239,7 +241,7 @@ xfs_attr_node_list(xfs_attr_list_context_t *context)
 	 */
 	bp = NULL;
 	if (cursor->blkno > 0) {
-		error = xfs_da3_node_read(NULL, context->dp, cursor->blkno, -1,
+		error = xfs_da3_node_read(NULL, dp, cursor->blkno, -1,
 					      &bp, XFS_ATTR_FORK);
 		if ((error != 0) && (error != EFSCORRUPTED))
 			return(error);
@@ -289,7 +291,7 @@ xfs_attr_node_list(xfs_attr_list_context_t *context)
 		for (;;) {
 			__uint16_t magic;
 
-			error = xfs_da3_node_read(NULL, context->dp,
+			error = xfs_da3_node_read(NULL, dp,
 						      cursor->blkno, -1, &bp,
 						      XFS_ATTR_FORK);
 			if (error)
@@ -310,7 +312,7 @@ xfs_attr_node_list(xfs_attr_list_context_t *context)
 			}
 
 			xfs_da3_node_hdr_from_disk(&nodehdr, node);
-			btree = xfs_da3_node_tree_p(node);
+			btree = dp->d_ops->node_tree_p(node);
 			for (i = 0; i < nodehdr.count; btree++, i++) {
 				if (cursor->hashval
 						<= be32_to_cpu(btree->hashval)) {
@@ -346,8 +348,7 @@ xfs_attr_node_list(xfs_attr_list_context_t *context)
 			break;
 		cursor->blkno = leafhdr.forw;
 		xfs_trans_brelse(NULL, bp);
-		error = xfs_attr3_leaf_read(NULL, context->dp, cursor->blkno, -1,
-					   &bp);
+		error = xfs_attr3_leaf_read(NULL, dp, cursor->blkno, -1, &bp);
 		if (error)
 			return error;
 	}
diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index df3759c51470..26dfc42a28f9 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -379,7 +379,8 @@ xfs_da3_node_create(
 
 	xfs_da3_node_hdr_to_disk(node, &ichdr);
 	xfs_trans_log_buf(tp, bp,
-		XFS_DA_LOGRANGE(node, &node->hdr, xfs_da3_node_hdr_size(node)));
+		XFS_DA_LOGRANGE(node, &node->hdr,
+				args->dp->d_ops->node_hdr_size()));
 
 	*bpp = bp;
 	return(0);
@@ -590,7 +591,7 @@ xfs_da3_root_split(
 		struct xfs_da3_icnode_hdr nodehdr;
 
 		xfs_da3_node_hdr_from_disk(&nodehdr, oldroot);
-		btree = xfs_da3_node_tree_p(oldroot);
+		btree = dp->d_ops->node_tree_p(oldroot);
 		size = (int)((char *)&btree[nodehdr.count] - (char *)oldroot);
 		level = nodehdr.level;
 
@@ -650,7 +651,7 @@ xfs_da3_root_split(
 
 	node = bp->b_addr;
 	xfs_da3_node_hdr_from_disk(&nodehdr, node);
-	btree = xfs_da3_node_tree_p(node);
+	btree = dp->d_ops->node_tree_p(node);
 	btree[0].hashval = cpu_to_be32(blk1->hashval);
 	btree[0].before = cpu_to_be32(blk1->blkno);
 	btree[1].hashval = cpu_to_be32(blk2->hashval);
@@ -793,6 +794,7 @@ xfs_da3_node_rebalance(
 	int			count;
 	int			tmp;
 	int			swap = 0;
+	struct xfs_inode	*dp = state->args->dp;
 
 	trace_xfs_da_node_rebalance(state->args);
 
@@ -800,8 +802,8 @@ xfs_da3_node_rebalance(
 	node2 = blk2->bp->b_addr;
 	xfs_da3_node_hdr_from_disk(&nodehdr1, node1);
 	xfs_da3_node_hdr_from_disk(&nodehdr2, node2);
-	btree1 = xfs_da3_node_tree_p(node1);
-	btree2 = xfs_da3_node_tree_p(node2);
+	btree1 = dp->d_ops->node_tree_p(node1);
+	btree2 = dp->d_ops->node_tree_p(node2);
 
 	/*
 	 * Figure out how many entries need to move, and in which direction.
@@ -816,8 +818,8 @@ xfs_da3_node_rebalance(
 		node2 = tmpnode;
 		xfs_da3_node_hdr_from_disk(&nodehdr1, node1);
 		xfs_da3_node_hdr_from_disk(&nodehdr2, node2);
-		btree1 = xfs_da3_node_tree_p(node1);
-		btree2 = xfs_da3_node_tree_p(node2);
+		btree1 = dp->d_ops->node_tree_p(node1);
+		btree2 = dp->d_ops->node_tree_p(node2);
 		swap = 1;
 	}
 
@@ -882,12 +884,12 @@ xfs_da3_node_rebalance(
 	xfs_da3_node_hdr_to_disk(node1, &nodehdr1);
 	xfs_trans_log_buf(tp, blk1->bp,
 		XFS_DA_LOGRANGE(node1, &node1->hdr,
-				xfs_da3_node_hdr_size(node1)));
+				dp->d_ops->node_hdr_size()));
 
 	xfs_da3_node_hdr_to_disk(node2, &nodehdr2);
 	xfs_trans_log_buf(tp, blk2->bp,
 		XFS_DA_LOGRANGE(node2, &node2->hdr,
-				xfs_da3_node_hdr_size(node2) +
+				dp->d_ops->node_hdr_size() +
 				(sizeof(btree2[0]) * nodehdr2.count)));
 
 	/*
@@ -899,8 +901,8 @@ xfs_da3_node_rebalance(
 		node2 = blk2->bp->b_addr;
 		xfs_da3_node_hdr_from_disk(&nodehdr1, node1);
 		xfs_da3_node_hdr_from_disk(&nodehdr2, node2);
-		btree1 = xfs_da3_node_tree_p(node1);
-		btree2 = xfs_da3_node_tree_p(node2);
+		btree1 = dp->d_ops->node_tree_p(node1);
+		btree2 = dp->d_ops->node_tree_p(node2);
 	}
 	blk1->hashval = be32_to_cpu(btree1[nodehdr1.count - 1].hashval);
 	blk2->hashval = be32_to_cpu(btree2[nodehdr2.count - 1].hashval);
@@ -927,12 +929,13 @@ xfs_da3_node_add(
 	struct xfs_da3_icnode_hdr nodehdr;
 	struct xfs_da_node_entry *btree;
 	int			tmp;
+	struct xfs_inode	*dp = state->args->dp;
 
 	trace_xfs_da_node_add(state->args);
 
 	node = oldblk->bp->b_addr;
 	xfs_da3_node_hdr_from_disk(&nodehdr, node);
-	btree = xfs_da3_node_tree_p(node);
+	btree = dp->d_ops->node_tree_p(node);
 
 	ASSERT(oldblk->index >= 0 && oldblk->index <= nodehdr.count);
 	ASSERT(newblk->blkno != 0);
@@ -957,7 +960,7 @@ xfs_da3_node_add(
 	nodehdr.count += 1;
 	xfs_da3_node_hdr_to_disk(node, &nodehdr);
 	xfs_trans_log_buf(state->args->trans, oldblk->bp,
-		XFS_DA_LOGRANGE(node, &node->hdr, xfs_da3_node_hdr_size(node)));
+		XFS_DA_LOGRANGE(node, &node->hdr, dp->d_ops->node_hdr_size()));
 
 	/*
 	 * Copy the last hash value from the oldblk to propagate upwards.
@@ -1115,7 +1118,7 @@ xfs_da3_root_join(
 	 * Read in the (only) child block, then copy those bytes into
 	 * the root block's buffer and free the original child block.
 	 */
-	btree = xfs_da3_node_tree_p(oldroot);
+	btree = args->dp->d_ops->node_tree_p(oldroot);
 	child = be32_to_cpu(btree[0].before);
 	ASSERT(child != 0);
 	error = xfs_da3_node_read(args->trans, args->dp, child, -1, &bp,
@@ -1275,6 +1278,7 @@ xfs_da3_node_toosmall(
  */
 STATIC uint
 xfs_da3_node_lasthash(
+	struct xfs_inode	*dp,
 	struct xfs_buf		*bp,
 	int			*count)
 {
@@ -1288,7 +1292,7 @@ xfs_da3_node_lasthash(
 		*count = nodehdr.count;
 	if (!nodehdr.count)
 		return 0;
-	btree = xfs_da3_node_tree_p(node);
+	btree = dp->d_ops->node_tree_p(node);
 	return be32_to_cpu(btree[nodehdr.count - 1].hashval);
 }
 
@@ -1307,6 +1311,7 @@ xfs_da3_fixhashpath(
 	xfs_dahash_t		lasthash=0;
 	int			level;
 	int			count;
+	struct xfs_inode	*dp = state->args->dp;
 
 	trace_xfs_da_fixhashpath(state->args);
 
@@ -1319,13 +1324,12 @@ xfs_da3_fixhashpath(
 			return;
 		break;
 	case XFS_DIR2_LEAFN_MAGIC:
-		lasthash = xfs_dir2_leafn_lasthash(state->args->dp,
-						   blk->bp, &count);
+		lasthash = xfs_dir2_leafn_lasthash(dp, blk->bp, &count);
 		if (count == 0)
 			return;
 		break;
 	case XFS_DA_NODE_MAGIC:
-		lasthash = xfs_da3_node_lasthash(blk->bp, &count);
+		lasthash = xfs_da3_node_lasthash(dp, blk->bp, &count);
 		if (count == 0)
 			return;
 		break;
@@ -1335,7 +1339,7 @@ xfs_da3_fixhashpath(
 
 		node = blk->bp->b_addr;
 		xfs_da3_node_hdr_from_disk(&nodehdr, node);
-		btree = xfs_da3_node_tree_p(node);
+		btree = dp->d_ops->node_tree_p(node);
 		if (be32_to_cpu(btree->hashval) == lasthash)
 			break;
 		blk->hashval = lasthash;
@@ -1361,6 +1365,7 @@ xfs_da3_node_remove(
 	struct xfs_da_node_entry *btree;
 	int			index;
 	int			tmp;
+	struct xfs_inode	*dp = state->args->dp;
 
 	trace_xfs_da_node_remove(state->args);
 
@@ -1373,7 +1378,7 @@ xfs_da3_node_remove(
 	 * Copy over the offending entry, or just zero it out.
 	 */
 	index = drop_blk->index;
-	btree = xfs_da3_node_tree_p(node);
+	btree = dp->d_ops->node_tree_p(node);
 	if (index < nodehdr.count - 1) {
 		tmp  = nodehdr.count - index - 1;
 		tmp *= (uint)sizeof(xfs_da_node_entry_t);
@@ -1388,7 +1393,7 @@ xfs_da3_node_remove(
 	nodehdr.count -= 1;
 	xfs_da3_node_hdr_to_disk(node, &nodehdr);
 	xfs_trans_log_buf(state->args->trans, drop_blk->bp,
-	    XFS_DA_LOGRANGE(node, &node->hdr, xfs_da3_node_hdr_size(node)));
+	    XFS_DA_LOGRANGE(node, &node->hdr, dp->d_ops->node_hdr_size()));
 
 	/*
 	 * Copy the last hash value from the block to propagate upwards.
@@ -1415,6 +1420,7 @@ xfs_da3_node_unbalance(
 	struct xfs_trans	*tp;
 	int			sindex;
 	int			tmp;
+	struct xfs_inode	*dp = state->args->dp;
 
 	trace_xfs_da_node_unbalance(state->args);
 
@@ -1422,8 +1428,8 @@ xfs_da3_node_unbalance(
 	save_node = save_blk->bp->b_addr;
 	xfs_da3_node_hdr_from_disk(&drop_hdr, drop_node);
 	xfs_da3_node_hdr_from_disk(&save_hdr, save_node);
-	drop_btree = xfs_da3_node_tree_p(drop_node);
-	save_btree = xfs_da3_node_tree_p(save_node);
+	drop_btree = dp->d_ops->node_tree_p(drop_node);
+	save_btree = dp->d_ops->node_tree_p(save_node);
 	tp = state->args->trans;
 
 	/*
@@ -1460,7 +1466,7 @@ xfs_da3_node_unbalance(
 	xfs_da3_node_hdr_to_disk(save_node, &save_hdr);
 	xfs_trans_log_buf(tp, save_blk->bp,
 		XFS_DA_LOGRANGE(save_node, &save_node->hdr,
-				xfs_da3_node_hdr_size(save_node)));
+				dp->d_ops->node_hdr_size()));
 
 	/*
 	 * Save the last hashval in the remaining block for upward propagation.
@@ -1502,6 +1508,7 @@ xfs_da3_node_lookup_int(
 	int			max;
 	int			error;
 	int			retval;
+	struct xfs_inode	*dp = state->args->dp;
 
 	args = state->args;
 
@@ -1550,7 +1557,7 @@ xfs_da3_node_lookup_int(
 		 */
 		node = blk->bp->b_addr;
 		xfs_da3_node_hdr_from_disk(&nodehdr, node);
-		btree = xfs_da3_node_tree_p(node);
+		btree = dp->d_ops->node_tree_p(node);
 
 		max = nodehdr.count;
 		blk->hashval = be32_to_cpu(btree[max - 1].hashval);
@@ -1645,6 +1652,7 @@ xfs_da3_node_lookup_int(
  */
 STATIC int
 xfs_da3_node_order(
+	struct xfs_inode *dp,
 	struct xfs_buf	*node1_bp,
 	struct xfs_buf	*node2_bp)
 {
@@ -1659,8 +1667,8 @@ xfs_da3_node_order(
 	node2 = node2_bp->b_addr;
 	xfs_da3_node_hdr_from_disk(&node1hdr, node1);
 	xfs_da3_node_hdr_from_disk(&node2hdr, node2);
-	btree1 = xfs_da3_node_tree_p(node1);
-	btree2 = xfs_da3_node_tree_p(node2);
+	btree1 = dp->d_ops->node_tree_p(node1);
+	btree2 = dp->d_ops->node_tree_p(node2);
 
 	if (node1hdr.count > 0 && node2hdr.count > 0 &&
 	    ((be32_to_cpu(btree2[0].hashval) < be32_to_cpu(btree1[0].hashval)) ||
@@ -1687,6 +1695,7 @@ xfs_da3_blk_link(
 	struct xfs_buf		*bp;
 	int			before = 0;
 	int			error;
+	struct xfs_inode	*dp = state->args->dp;
 
 	/*
 	 * Set up environment.
@@ -1704,10 +1713,10 @@ xfs_da3_blk_link(
 		before = xfs_attr_leaf_order(old_blk->bp, new_blk->bp);
 		break;
 	case XFS_DIR2_LEAFN_MAGIC:
-		before = xfs_dir2_leafn_order(args->dp, old_blk->bp, new_blk->bp);
+		before = xfs_dir2_leafn_order(dp, old_blk->bp, new_blk->bp);
 		break;
 	case XFS_DA_NODE_MAGIC:
-		before = xfs_da3_node_order(old_blk->bp, new_blk->bp);
+		before = xfs_da3_node_order(dp, old_blk->bp, new_blk->bp);
 		break;
 	}
 
@@ -1722,7 +1731,7 @@ xfs_da3_blk_link(
 		new_info->forw = cpu_to_be32(old_blk->blkno);
 		new_info->back = old_info->back;
 		if (old_info->back) {
-			error = xfs_da3_node_read(args->trans, args->dp,
+			error = xfs_da3_node_read(args->trans, dp,
 						be32_to_cpu(old_info->back),
 						-1, &bp, args->whichfork);
 			if (error)
@@ -1743,7 +1752,7 @@ xfs_da3_blk_link(
 		new_info->forw = old_info->forw;
 		new_info->back = cpu_to_be32(old_blk->blkno);
 		if (old_info->forw) {
-			error = xfs_da3_node_read(args->trans, args->dp,
+			error = xfs_da3_node_read(args->trans, dp,
 						be32_to_cpu(old_info->forw),
 						-1, &bp, args->whichfork);
 			if (error)
@@ -1863,6 +1872,7 @@ xfs_da3_path_shift(
 	xfs_dablk_t		blkno = 0;
 	int			level;
 	int			error;
+	struct xfs_inode	*dp = state->args->dp;
 
 	trace_xfs_da_path_shift(state->args);
 
@@ -1879,7 +1889,7 @@ xfs_da3_path_shift(
 	for (blk = &path->blk[level]; level >= 0; blk--, level--) {
 		node = blk->bp->b_addr;
 		xfs_da3_node_hdr_from_disk(&nodehdr, node);
-		btree = xfs_da3_node_tree_p(node);
+		btree = dp->d_ops->node_tree_p(node);
 
 		if (forward && (blk->index < nodehdr.count - 1)) {
 			blk->index++;
@@ -1913,7 +1923,7 @@ xfs_da3_path_shift(
 		 * Read the next child block.
 		 */
 		blk->blkno = blkno;
-		error = xfs_da3_node_read(args->trans, args->dp, blkno, -1,
+		error = xfs_da3_node_read(args->trans, dp, blkno, -1,
 					&blk->bp, args->whichfork);
 		if (error)
 			return(error);
@@ -1936,7 +1946,7 @@ xfs_da3_path_shift(
 			blk->magic = XFS_DA_NODE_MAGIC;
 			node = (xfs_da_intnode_t *)info;
 			xfs_da3_node_hdr_from_disk(&nodehdr, node);
-			btree = xfs_da3_node_tree_p(node);
+			btree = dp->d_ops->node_tree_p(node);
 			blk->hashval = be32_to_cpu(btree[nodehdr.count - 1].hashval);
 			if (forward)
 				blk->index = 0;
@@ -2164,7 +2174,7 @@ xfs_da3_swap_lastblock(
 	struct xfs_dir2_leaf	*dead_leaf2;
 	struct xfs_da_node_entry *btree;
 	struct xfs_da3_icnode_hdr par_hdr;
-	struct xfs_inode	*ip;
+	struct xfs_inode	*dp;
 	struct xfs_trans	*tp;
 	struct xfs_mount	*mp;
 	struct xfs_buf		*dead_buf;
@@ -2188,12 +2198,12 @@ xfs_da3_swap_lastblock(
 	dead_buf = *dead_bufp;
 	dead_blkno = *dead_blknop;
 	tp = args->trans;
-	ip = args->dp;
+	dp = args->dp;
 	w = args->whichfork;
 	ASSERT(w == XFS_DATA_FORK);
-	mp = ip->i_mount;
+	mp = dp->i_mount;
 	lastoff = mp->m_dirfreeblk;
-	error = xfs_bmap_last_before(tp, ip, &lastoff, w);
+	error = xfs_bmap_last_before(tp, dp, &lastoff, w);
 	if (error)
 		return error;
 	if (unlikely(lastoff == 0)) {
@@ -2205,7 +2215,7 @@ xfs_da3_swap_lastblock(
 	 * Read the last block in the btree space.
 	 */
 	last_blkno = (xfs_dablk_t)lastoff - mp->m_dirblkfsbs;
-	error = xfs_da3_node_read(tp, ip, last_blkno, -1, &last_buf, w);
+	error = xfs_da3_node_read(tp, dp, last_blkno, -1, &last_buf, w);
 	if (error)
 		return error;
 	/*
@@ -2224,7 +2234,7 @@ xfs_da3_swap_lastblock(
 
 		dead_leaf2 = (xfs_dir2_leaf_t *)dead_info;
 		xfs_dir3_leaf_hdr_from_disk(&leafhdr, dead_leaf2);
-		ents = ip->d_ops->leaf_ents_p(dead_leaf2);
+		ents = dp->d_ops->leaf_ents_p(dead_leaf2);
 		dead_level = 0;
 		dead_hash = be32_to_cpu(ents[leafhdr.count - 1].hashval);
 	} else {
@@ -2232,7 +2242,7 @@ xfs_da3_swap_lastblock(
 
 		dead_node = (xfs_da_intnode_t *)dead_info;
 		xfs_da3_node_hdr_from_disk(&deadhdr, dead_node);
-		btree = xfs_da3_node_tree_p(dead_node);
+		btree = dp->d_ops->node_tree_p(dead_node);
 		dead_level = deadhdr.level;
 		dead_hash = be32_to_cpu(btree[deadhdr.count - 1].hashval);
 	}
@@ -2241,7 +2251,7 @@ xfs_da3_swap_lastblock(
 	 * If the moved block has a left sibling, fix up the pointers.
 	 */
 	if ((sib_blkno = be32_to_cpu(dead_info->back))) {
-		error = xfs_da3_node_read(tp, ip, sib_blkno, -1, &sib_buf, w);
+		error = xfs_da3_node_read(tp, dp, sib_blkno, -1, &sib_buf, w);
 		if (error)
 			goto done;
 		sib_info = sib_buf->b_addr;
@@ -2263,7 +2273,7 @@ xfs_da3_swap_lastblock(
 	 * If the moved block has a right sibling, fix up the pointers.
 	 */
 	if ((sib_blkno = be32_to_cpu(dead_info->forw))) {
-		error = xfs_da3_node_read(tp, ip, sib_blkno, -1, &sib_buf, w);
+		error = xfs_da3_node_read(tp, dp, sib_blkno, -1, &sib_buf, w);
 		if (error)
 			goto done;
 		sib_info = sib_buf->b_addr;
@@ -2287,7 +2297,7 @@ xfs_da3_swap_lastblock(
 	 * Walk down the tree looking for the parent of the moved block.
 	 */
 	for (;;) {
-		error = xfs_da3_node_read(tp, ip, par_blkno, -1, &par_buf, w);
+		error = xfs_da3_node_read(tp, dp, par_blkno, -1, &par_buf, w);
 		if (error)
 			goto done;
 		par_node = par_buf->b_addr;
@@ -2299,7 +2309,7 @@ xfs_da3_swap_lastblock(
 			goto done;
 		}
 		level = par_hdr.level;
-		btree = xfs_da3_node_tree_p(par_node);
+		btree = dp->d_ops->node_tree_p(par_node);
 		for (entno = 0;
 		     entno < par_hdr.count &&
 		     be32_to_cpu(btree[entno].hashval) < dead_hash;
@@ -2338,7 +2348,7 @@ xfs_da3_swap_lastblock(
 			error = XFS_ERROR(EFSCORRUPTED);
 			goto done;
 		}
-		error = xfs_da3_node_read(tp, ip, par_blkno, -1, &par_buf, w);
+		error = xfs_da3_node_read(tp, dp, par_blkno, -1, &par_buf, w);
 		if (error)
 			goto done;
 		par_node = par_buf->b_addr;
@@ -2349,7 +2359,7 @@ xfs_da3_swap_lastblock(
 			error = XFS_ERROR(EFSCORRUPTED);
 			goto done;
 		}
-		btree = xfs_da3_node_tree_p(par_node);
+		btree = dp->d_ops->node_tree_p(par_node);
 		entno = 0;
 	}
 	/*
diff --git a/fs/xfs/xfs_da_format.c b/fs/xfs/xfs_da_format.c
index ff8b50368c94..72b48b5ec69a 100644
--- a/fs/xfs/xfs_da_format.c
+++ b/fs/xfs/xfs_da_format.c
@@ -477,6 +477,33 @@ xfs_dir3_leaf_ents_p(struct xfs_dir2_leaf *lp)
 	return ((struct xfs_dir3_leaf *)lp)->__ents;
 }
 
+/*
+ * Directory/Attribute Node block operations
+ */
+static inline int
+xfs_da2_node_hdr_size(void)
+{
+	return sizeof(struct xfs_da_node_hdr);
+}
+
+static struct xfs_da_node_entry *
+xfs_da2_node_tree_p(struct xfs_da_intnode *dap)
+{
+	return dap->__btree;
+}
+
+static inline int
+xfs_da3_node_hdr_size(void)
+{
+	return sizeof(struct xfs_da3_node_hdr);
+}
+
+static inline struct xfs_da_node_entry *
+xfs_da3_node_tree_p(struct xfs_da_intnode *dap)
+{
+	return ((struct xfs_da3_intnode *)dap)->__btree;
+}
+
 const struct xfs_dir_ops xfs_dir2_ops = {
 	.sf_entsize = xfs_dir2_sf_entsize,
 	.sf_nextentry = xfs_dir2_sf_nextentry,
@@ -508,6 +535,8 @@ const struct xfs_dir_ops xfs_dir2_ops = {
 	.leaf_max_ents = xfs_dir2_max_leaf_ents,
 	.leaf_ents_p = xfs_dir2_leaf_ents_p,
 
+	.node_hdr_size = xfs_da2_node_hdr_size,
+	.node_tree_p = xfs_da2_node_tree_p,
 };
 
 const struct xfs_dir_ops xfs_dir2_ftype_ops = {
@@ -540,6 +569,9 @@ const struct xfs_dir_ops xfs_dir2_ftype_ops = {
 	.leaf_hdr_size = xfs_dir2_leaf_hdr_size,
 	.leaf_max_ents = xfs_dir2_max_leaf_ents,
 	.leaf_ents_p = xfs_dir2_leaf_ents_p,
+
+	.node_hdr_size = xfs_da2_node_hdr_size,
+	.node_tree_p = xfs_da2_node_tree_p,
 };
 
 const struct xfs_dir_ops xfs_dir3_ops = {
@@ -572,6 +604,19 @@ const struct xfs_dir_ops xfs_dir3_ops = {
 	.leaf_hdr_size = xfs_dir3_leaf_hdr_size,
 	.leaf_max_ents = xfs_dir3_max_leaf_ents,
 	.leaf_ents_p = xfs_dir3_leaf_ents_p,
+
+	.node_hdr_size = xfs_da3_node_hdr_size,
+	.node_tree_p = xfs_da3_node_tree_p,
+};
+
+const struct xfs_dir_ops xfs_dir2_nondir_ops = {
+	.node_hdr_size = xfs_da2_node_hdr_size,
+	.node_tree_p = xfs_da2_node_tree_p,
+};
+
+const struct xfs_dir_ops xfs_dir3_nondir_ops = {
+	.node_hdr_size = xfs_da3_node_hdr_size,
+	.node_tree_p = xfs_da3_node_tree_p,
 };
 
 /*
@@ -594,3 +639,17 @@ xfs_dir_get_ops(
 		return &xfs_dir2_ftype_ops;
 	return &xfs_dir2_ops;
 }
+
+const struct xfs_dir_ops *
+xfs_nondir_get_ops(
+	struct xfs_mount	*mp,
+	struct xfs_inode	*dp)
+{
+	if (dp)
+		return dp->d_ops;
+	if (mp->m_nondir_inode_ops)
+		return mp->m_nondir_inode_ops;
+	if (xfs_sb_version_hascrc(&mp->m_sb))
+		return &xfs_dir3_nondir_ops;
+	return &xfs_dir2_nondir_ops;
+}
diff --git a/fs/xfs/xfs_da_format.h b/fs/xfs/xfs_da_format.h
index 0a567e25cf59..69b4c6e1c52e 100644
--- a/fs/xfs/xfs_da_format.h
+++ b/fs/xfs/xfs_da_format.h
@@ -127,31 +127,6 @@ extern void xfs_da3_node_hdr_from_disk(struct xfs_da3_icnode_hdr *to,
 extern void xfs_da3_node_hdr_to_disk(struct xfs_da_intnode *to,
 				     struct xfs_da3_icnode_hdr *from);
 
-static inline int
-__xfs_da3_node_hdr_size(bool v3)
-{
-	if (v3)
-		return sizeof(struct xfs_da3_node_hdr);
-	return sizeof(struct xfs_da_node_hdr);
-}
-static inline int
-xfs_da3_node_hdr_size(struct xfs_da_intnode *dap)
-{
-	bool	v3 = dap->hdr.info.magic == cpu_to_be16(XFS_DA3_NODE_MAGIC);
-
-	return __xfs_da3_node_hdr_size(v3);
-}
-
-static inline struct xfs_da_node_entry *
-xfs_da3_node_tree_p(struct xfs_da_intnode *dap)
-{
-	if (dap->hdr.info.magic == cpu_to_be16(XFS_DA3_NODE_MAGIC)) {
-		struct xfs_da3_intnode *dap3 = (struct xfs_da3_intnode *)dap;
-		return dap3->__btree;
-	}
-	return dap->__btree;
-}
-
 extern void xfs_da3_intnode_from_disk(struct xfs_da3_icnode_hdr *to,
 				      struct xfs_da_intnode *from);
 extern void xfs_da3_intnode_to_disk(struct xfs_da_intnode *to,
diff --git a/fs/xfs/xfs_dir2.c b/fs/xfs/xfs_dir2.c
index 2b98a33ca383..1b44e83924b7 100644
--- a/fs/xfs/xfs_dir2.c
+++ b/fs/xfs/xfs_dir2.c
@@ -95,13 +95,17 @@ xfs_dir_mount(
 	ASSERT(xfs_sb_version_hasdirv2(&mp->m_sb));
 	ASSERT((1 << (mp->m_sb.sb_blocklog + mp->m_sb.sb_dirblklog)) <=
 	       XFS_MAX_BLOCKSIZE);
+
+	mp->m_dir_inode_ops = xfs_dir_get_ops(mp, NULL);
+	mp->m_nondir_inode_ops = xfs_nondir_get_ops(mp, NULL);
+
 	mp->m_dirblksize = 1 << (mp->m_sb.sb_blocklog + mp->m_sb.sb_dirblklog);
 	mp->m_dirblkfsbs = 1 << mp->m_sb.sb_dirblklog;
 	mp->m_dirdatablk = xfs_dir2_db_to_da(mp, XFS_DIR2_DATA_FIRSTDB(mp));
 	mp->m_dirleafblk = xfs_dir2_db_to_da(mp, XFS_DIR2_LEAF_FIRSTDB(mp));
 	mp->m_dirfreeblk = xfs_dir2_db_to_da(mp, XFS_DIR2_FREE_FIRSTDB(mp));
 
-	nodehdr_size = __xfs_da3_node_hdr_size(xfs_sb_version_hascrc(&mp->m_sb));
+	nodehdr_size = mp->m_dir_inode_ops->node_hdr_size();
 	mp->m_attr_node_ents = (mp->m_sb.sb_blocksize - nodehdr_size) /
 				(uint)sizeof(xfs_da_node_entry_t);
 	mp->m_dir_node_ents = (mp->m_dirblksize - nodehdr_size) /
@@ -113,7 +117,6 @@ xfs_dir_mount(
 	else
 		mp->m_dirnameops = &xfs_default_nameops;
 
-	mp->m_dir_inode_ops = xfs_dir_get_ops(mp, NULL);
 }
 
 /*
diff --git a/fs/xfs/xfs_dir2.h b/fs/xfs/xfs_dir2.h
index 9ba9db731990..c5cad9d9239d 100644
--- a/fs/xfs/xfs_dir2.h
+++ b/fs/xfs/xfs_dir2.h
@@ -79,10 +79,16 @@ struct xfs_dir_ops {
 	int	(*leaf_max_ents)(struct xfs_mount *mp);
 	struct xfs_dir2_leaf_entry *
 		(*leaf_ents_p)(struct xfs_dir2_leaf *lp);
+
+	int	(*node_hdr_size)(void);
+	struct xfs_da_node_entry *
+		(*node_tree_p)(struct xfs_da_intnode *dap);
 };
 
 extern const struct xfs_dir_ops *
 	xfs_dir_get_ops(struct xfs_mount *mp, struct xfs_inode *dp);
+extern const struct xfs_dir_ops *
+	xfs_nondir_get_ops(struct xfs_mount *mp, struct xfs_inode *dp);
 
 /*
  * Generic directory interface routines
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 0493587ea6bc..c4cd6d47f523 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -1203,6 +1203,7 @@ xfs_setup_inode(
 	inode->i_ctime.tv_nsec	= ip->i_d.di_ctime.t_nsec;
 	xfs_diflags_to_iflags(inode, ip);
 
+	ip->d_ops = ip->i_mount->m_nondir_inode_ops;
 	switch (inode->i_mode & S_IFMT) {
 	case S_IFREG:
 		inode->i_op = &xfs_inode_operations;
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 973397f66c6b..1d8101a10d8e 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -150,6 +150,7 @@ typedef struct xfs_mount {
 	__uint8_t		m_sectbb_log;	/* sectlog - BBSHIFT */
 	const struct xfs_nameops *m_dirnameops;	/* vector of dir name ops */
 	const struct xfs_dir_ops *m_dir_inode_ops; /* vector of dir inode ops */
+	const struct xfs_dir_ops *m_nondir_inode_ops; /* !dir inode ops */
 	int			m_dirblksize;	/* directory block sz--bytes */
 	int			m_dirblkfsbs;	/* directory block sz--fsbs */
 	xfs_dablk_t		m_dirdatablk;	/* blockno of dir data v2 */
-- 
cgit 


From 01ba43b873d9e91ba2e0341fe8cb7e89eaa41661 Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 29 Oct 2013 22:11:52 +1100
Subject: xfs: vectorise encoding/decoding directory headers

Conversion from on-disk structures to in-core header structures
currently relies on magic number checks. If the magic number is
wrong, but one of the supported values, we do the wrong thing with
the encode/decode operation. Split these functions so that there are
discrete operations for the specific directory format we are
handling.

In doing this, move all the header encode/decode functions to
xfs_da_format.c as they are directly manipulating the on-disk
format. It should be noted that all the growth in binary size is
from xfs_da_format.c - the rest of the code actaully shrinks.

   text    data     bss     dec     hex filename
 794490   96802    1096  892388   d9de4 fs/xfs/xfs.o.orig
 792986   96802    1096  890884   d9804 fs/xfs/xfs.o.p1
 792350   96802    1096  890248   d9588 fs/xfs/xfs.o.p2
 789293   96802    1096  887191   d8997 fs/xfs/xfs.o.p3
 789005   96802    1096  886903   d8997 fs/xfs/xfs.o.p4
 789061   96802    1096  886959   d88af fs/xfs/xfs.o.p5
 789733   96802    1096  887631   d8b4f fs/xfs/xfs.o.p6
 791421   96802    1096  889319   d91e7 fs/xfs/xfs.o.p7

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_attr_inactive.c |   2 +-
 fs/xfs/xfs_attr_leaf.c     |   4 +-
 fs/xfs/xfs_attr_list.c     |   2 +-
 fs/xfs/xfs_da_btree.c      | 141 +++++++++++-------------------
 fs/xfs/xfs_da_format.c     | 209 ++++++++++++++++++++++++++++++++++++++++++++-
 fs/xfs/xfs_da_format.h     |  16 ----
 fs/xfs/xfs_dir2.h          |  13 +++
 fs/xfs/xfs_dir2_block.c    |   2 +-
 fs/xfs/xfs_dir2_leaf.c     | 100 ++++++----------------
 fs/xfs/xfs_dir2_node.c     | 126 +++++++++------------------
 fs/xfs/xfs_dir2_priv.h     |   4 -
 11 files changed, 338 insertions(+), 281 deletions(-)

diff --git a/fs/xfs/xfs_attr_inactive.c b/fs/xfs/xfs_attr_inactive.c
index 4855085f8c6b..09480c57f069 100644
--- a/fs/xfs/xfs_attr_inactive.c
+++ b/fs/xfs/xfs_attr_inactive.c
@@ -231,7 +231,7 @@ xfs_attr3_node_inactive(
 	}
 
 	node = bp->b_addr;
-	xfs_da3_node_hdr_from_disk(&ichdr, node);
+	dp->d_ops->node_hdr_from_disk(&ichdr, node);
 	parent_blkno = bp->b_bn;
 	if (!ichdr.count) {
 		xfs_trans_brelse(*trans, bp);
diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index 82f1354c77b6..fdf9992dcbbc 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -916,7 +916,7 @@ xfs_attr3_leaf_to_node(
 	if (error)
 		goto out;
 	node = bp1->b_addr;
-	xfs_da3_node_hdr_from_disk(&icnodehdr, node);
+	dp->d_ops->node_hdr_from_disk(&icnodehdr, node);
 	btree = dp->d_ops->node_tree_p(node);
 
 	leaf = bp2->b_addr;
@@ -927,7 +927,7 @@ xfs_attr3_leaf_to_node(
 	btree[0].hashval = entries[icleafhdr.count - 1].hashval;
 	btree[0].before = cpu_to_be32(blkno);
 	icnodehdr.count = 1;
-	xfs_da3_node_hdr_to_disk(node, &icnodehdr);
+	dp->d_ops->node_hdr_to_disk(node, &icnodehdr);
 	xfs_trans_log_buf(args->trans, bp1, 0, XFS_LBSIZE(mp) - 1);
 	error = 0;
 out:
diff --git a/fs/xfs/xfs_attr_list.c b/fs/xfs/xfs_attr_list.c
index ea1c4c46c24f..2d174b128153 100644
--- a/fs/xfs/xfs_attr_list.c
+++ b/fs/xfs/xfs_attr_list.c
@@ -311,7 +311,7 @@ xfs_attr_node_list(xfs_attr_list_context_t *context)
 				return XFS_ERROR(EFSCORRUPTED);
 			}
 
-			xfs_da3_node_hdr_from_disk(&nodehdr, node);
+			dp->d_ops->node_hdr_from_disk(&nodehdr, node);
 			btree = dp->d_ops->node_tree_p(node);
 			for (i = 0; i < nodehdr.count; btree++, i++) {
 				if (cursor->hashval
diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index 26dfc42a28f9..a51762dae543 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -129,56 +129,6 @@ xfs_da_state_free(xfs_da_state_t *state)
 	kmem_zone_free(xfs_da_state_zone, state);
 }
 
-void
-xfs_da3_node_hdr_from_disk(
-	struct xfs_da3_icnode_hdr	*to,
-	struct xfs_da_intnode		*from)
-{
-	ASSERT(from->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC) ||
-	       from->hdr.info.magic == cpu_to_be16(XFS_DA3_NODE_MAGIC));
-
-	if (from->hdr.info.magic == cpu_to_be16(XFS_DA3_NODE_MAGIC)) {
-		struct xfs_da3_node_hdr *hdr3 = (struct xfs_da3_node_hdr *)from;
-
-		to->forw = be32_to_cpu(hdr3->info.hdr.forw);
-		to->back = be32_to_cpu(hdr3->info.hdr.back);
-		to->magic = be16_to_cpu(hdr3->info.hdr.magic);
-		to->count = be16_to_cpu(hdr3->__count);
-		to->level = be16_to_cpu(hdr3->__level);
-		return;
-	}
-	to->forw = be32_to_cpu(from->hdr.info.forw);
-	to->back = be32_to_cpu(from->hdr.info.back);
-	to->magic = be16_to_cpu(from->hdr.info.magic);
-	to->count = be16_to_cpu(from->hdr.__count);
-	to->level = be16_to_cpu(from->hdr.__level);
-}
-
-void
-xfs_da3_node_hdr_to_disk(
-	struct xfs_da_intnode		*to,
-	struct xfs_da3_icnode_hdr	*from)
-{
-	ASSERT(from->magic == XFS_DA_NODE_MAGIC ||
-	       from->magic == XFS_DA3_NODE_MAGIC);
-
-	if (from->magic == XFS_DA3_NODE_MAGIC) {
-		struct xfs_da3_node_hdr *hdr3 = (struct xfs_da3_node_hdr *)to;
-
-		hdr3->info.hdr.forw = cpu_to_be32(from->forw);
-		hdr3->info.hdr.back = cpu_to_be32(from->back);
-		hdr3->info.hdr.magic = cpu_to_be16(from->magic);
-		hdr3->__count = cpu_to_be16(from->count);
-		hdr3->__level = cpu_to_be16(from->level);
-		return;
-	}
-	to->hdr.info.forw = cpu_to_be32(from->forw);
-	to->hdr.info.back = cpu_to_be32(from->back);
-	to->hdr.info.magic = cpu_to_be16(from->magic);
-	to->hdr.__count = cpu_to_be16(from->count);
-	to->hdr.__level = cpu_to_be16(from->level);
-}
-
 static bool
 xfs_da3_node_verify(
 	struct xfs_buf		*bp)
@@ -186,8 +136,11 @@ xfs_da3_node_verify(
 	struct xfs_mount	*mp = bp->b_target->bt_mount;
 	struct xfs_da_intnode	*hdr = bp->b_addr;
 	struct xfs_da3_icnode_hdr ichdr;
+	const struct xfs_dir_ops *ops;
+
+	ops = xfs_dir_get_ops(mp, NULL);
 
-	xfs_da3_node_hdr_from_disk(&ichdr, hdr);
+	ops->node_hdr_from_disk(&ichdr, hdr);
 
 	if (xfs_sb_version_hascrc(&mp->m_sb)) {
 		struct xfs_da3_node_hdr *hdr3 = bp->b_addr;
@@ -354,11 +307,12 @@ xfs_da3_node_create(
 	struct xfs_da3_icnode_hdr ichdr = {0};
 	struct xfs_buf		*bp;
 	int			error;
+	struct xfs_inode	*dp = args->dp;
 
 	trace_xfs_da_node_create(args);
 	ASSERT(level <= XFS_DA_NODE_MAXDEPTH);
 
-	error = xfs_da_get_buf(tp, args->dp, blkno, -1, &bp, whichfork);
+	error = xfs_da_get_buf(tp, dp, blkno, -1, &bp, whichfork);
 	if (error)
 		return(error);
 	bp->b_ops = &xfs_da3_node_buf_ops;
@@ -377,10 +331,10 @@ xfs_da3_node_create(
 	}
 	ichdr.level = level;
 
-	xfs_da3_node_hdr_to_disk(node, &ichdr);
+	dp->d_ops->node_hdr_to_disk(node, &ichdr);
 	xfs_trans_log_buf(tp, bp,
 		XFS_DA_LOGRANGE(node, &node->hdr,
-				args->dp->d_ops->node_hdr_size()));
+				dp->d_ops->node_hdr_size()));
 
 	*bpp = bp;
 	return(0);
@@ -590,7 +544,7 @@ xfs_da3_root_split(
 	    oldroot->hdr.info.magic == cpu_to_be16(XFS_DA3_NODE_MAGIC)) {
 		struct xfs_da3_icnode_hdr nodehdr;
 
-		xfs_da3_node_hdr_from_disk(&nodehdr, oldroot);
+		dp->d_ops->node_hdr_from_disk(&nodehdr, oldroot);
 		btree = dp->d_ops->node_tree_p(oldroot);
 		size = (int)((char *)&btree[nodehdr.count] - (char *)oldroot);
 		level = nodehdr.level;
@@ -605,7 +559,7 @@ xfs_da3_root_split(
 		struct xfs_dir2_leaf_entry *ents;
 
 		leaf = (xfs_dir2_leaf_t *)oldroot;
-		xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
+		dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
 		ents = dp->d_ops->leaf_ents_p(leaf);
 
 		ASSERT(leafhdr.magic == XFS_DIR2_LEAFN_MAGIC ||
@@ -650,14 +604,14 @@ xfs_da3_root_split(
 		return error;
 
 	node = bp->b_addr;
-	xfs_da3_node_hdr_from_disk(&nodehdr, node);
+	dp->d_ops->node_hdr_from_disk(&nodehdr, node);
 	btree = dp->d_ops->node_tree_p(node);
 	btree[0].hashval = cpu_to_be32(blk1->hashval);
 	btree[0].before = cpu_to_be32(blk1->blkno);
 	btree[1].hashval = cpu_to_be32(blk2->hashval);
 	btree[1].before = cpu_to_be32(blk2->blkno);
 	nodehdr.count = 2;
-	xfs_da3_node_hdr_to_disk(node, &nodehdr);
+	dp->d_ops->node_hdr_to_disk(node, &nodehdr);
 
 #ifdef DEBUG
 	if (oldroot->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC) ||
@@ -694,11 +648,12 @@ xfs_da3_node_split(
 	int			newcount;
 	int			error;
 	int			useextra;
+	struct xfs_inode	*dp = state->args->dp;
 
 	trace_xfs_da_node_split(state->args);
 
 	node = oldblk->bp->b_addr;
-	xfs_da3_node_hdr_from_disk(&nodehdr, node);
+	dp->d_ops->node_hdr_from_disk(&nodehdr, node);
 
 	/*
 	 * With V2 dirs the extra block is data or freespace.
@@ -745,7 +700,7 @@ xfs_da3_node_split(
 	 * If we had double-split op below us, then add the extra block too.
 	 */
 	node = oldblk->bp->b_addr;
-	xfs_da3_node_hdr_from_disk(&nodehdr, node);
+	dp->d_ops->node_hdr_from_disk(&nodehdr, node);
 	if (oldblk->index <= nodehdr.count) {
 		oldblk->index++;
 		xfs_da3_node_add(state, oldblk, addblk);
@@ -800,8 +755,8 @@ xfs_da3_node_rebalance(
 
 	node1 = blk1->bp->b_addr;
 	node2 = blk2->bp->b_addr;
-	xfs_da3_node_hdr_from_disk(&nodehdr1, node1);
-	xfs_da3_node_hdr_from_disk(&nodehdr2, node2);
+	dp->d_ops->node_hdr_from_disk(&nodehdr1, node1);
+	dp->d_ops->node_hdr_from_disk(&nodehdr2, node2);
 	btree1 = dp->d_ops->node_tree_p(node1);
 	btree2 = dp->d_ops->node_tree_p(node2);
 
@@ -816,8 +771,8 @@ xfs_da3_node_rebalance(
 		tmpnode = node1;
 		node1 = node2;
 		node2 = tmpnode;
-		xfs_da3_node_hdr_from_disk(&nodehdr1, node1);
-		xfs_da3_node_hdr_from_disk(&nodehdr2, node2);
+		dp->d_ops->node_hdr_from_disk(&nodehdr1, node1);
+		dp->d_ops->node_hdr_from_disk(&nodehdr2, node2);
 		btree1 = dp->d_ops->node_tree_p(node1);
 		btree2 = dp->d_ops->node_tree_p(node2);
 		swap = 1;
@@ -881,12 +836,12 @@ xfs_da3_node_rebalance(
 	/*
 	 * Log header of node 1 and all current bits of node 2.
 	 */
-	xfs_da3_node_hdr_to_disk(node1, &nodehdr1);
+	dp->d_ops->node_hdr_to_disk(node1, &nodehdr1);
 	xfs_trans_log_buf(tp, blk1->bp,
 		XFS_DA_LOGRANGE(node1, &node1->hdr,
 				dp->d_ops->node_hdr_size()));
 
-	xfs_da3_node_hdr_to_disk(node2, &nodehdr2);
+	dp->d_ops->node_hdr_to_disk(node2, &nodehdr2);
 	xfs_trans_log_buf(tp, blk2->bp,
 		XFS_DA_LOGRANGE(node2, &node2->hdr,
 				dp->d_ops->node_hdr_size() +
@@ -899,8 +854,8 @@ xfs_da3_node_rebalance(
 	if (swap) {
 		node1 = blk1->bp->b_addr;
 		node2 = blk2->bp->b_addr;
-		xfs_da3_node_hdr_from_disk(&nodehdr1, node1);
-		xfs_da3_node_hdr_from_disk(&nodehdr2, node2);
+		dp->d_ops->node_hdr_from_disk(&nodehdr1, node1);
+		dp->d_ops->node_hdr_from_disk(&nodehdr2, node2);
 		btree1 = dp->d_ops->node_tree_p(node1);
 		btree2 = dp->d_ops->node_tree_p(node2);
 	}
@@ -934,7 +889,7 @@ xfs_da3_node_add(
 	trace_xfs_da_node_add(state->args);
 
 	node = oldblk->bp->b_addr;
-	xfs_da3_node_hdr_from_disk(&nodehdr, node);
+	dp->d_ops->node_hdr_from_disk(&nodehdr, node);
 	btree = dp->d_ops->node_tree_p(node);
 
 	ASSERT(oldblk->index >= 0 && oldblk->index <= nodehdr.count);
@@ -958,7 +913,7 @@ xfs_da3_node_add(
 				tmp + sizeof(*btree)));
 
 	nodehdr.count += 1;
-	xfs_da3_node_hdr_to_disk(node, &nodehdr);
+	dp->d_ops->node_hdr_to_disk(node, &nodehdr);
 	xfs_trans_log_buf(state->args->trans, oldblk->bp,
 		XFS_DA_LOGRANGE(node, &node->hdr, dp->d_ops->node_hdr_size()));
 
@@ -1097,6 +1052,7 @@ xfs_da3_root_join(
 	struct xfs_da3_icnode_hdr oldroothdr;
 	struct xfs_da_node_entry *btree;
 	int			error;
+	struct xfs_inode	*dp = state->args->dp;
 
 	trace_xfs_da_root_join(state->args);
 
@@ -1104,7 +1060,7 @@ xfs_da3_root_join(
 
 	args = state->args;
 	oldroot = root_blk->bp->b_addr;
-	xfs_da3_node_hdr_from_disk(&oldroothdr, oldroot);
+	dp->d_ops->node_hdr_from_disk(&oldroothdr, oldroot);
 	ASSERT(oldroothdr.forw == 0);
 	ASSERT(oldroothdr.back == 0);
 
@@ -1118,10 +1074,10 @@ xfs_da3_root_join(
 	 * Read in the (only) child block, then copy those bytes into
 	 * the root block's buffer and free the original child block.
 	 */
-	btree = args->dp->d_ops->node_tree_p(oldroot);
+	btree = dp->d_ops->node_tree_p(oldroot);
 	child = be32_to_cpu(btree[0].before);
 	ASSERT(child != 0);
-	error = xfs_da3_node_read(args->trans, args->dp, child, -1, &bp,
+	error = xfs_da3_node_read(args->trans, dp, child, -1, &bp,
 					     args->whichfork);
 	if (error)
 		return error;
@@ -1171,6 +1127,7 @@ xfs_da3_node_toosmall(
 	int			error;
 	int			retval;
 	int			i;
+	struct xfs_inode	*dp = state->args->dp;
 
 	trace_xfs_da_node_toosmall(state->args);
 
@@ -1182,7 +1139,7 @@ xfs_da3_node_toosmall(
 	blk = &state->path.blk[ state->path.active-1 ];
 	info = blk->bp->b_addr;
 	node = (xfs_da_intnode_t *)info;
-	xfs_da3_node_hdr_from_disk(&nodehdr, node);
+	dp->d_ops->node_hdr_from_disk(&nodehdr, node);
 	if (nodehdr.count > (state->node_ents >> 1)) {
 		*action = 0;	/* blk over 50%, don't try to join */
 		return(0);	/* blk over 50%, don't try to join */
@@ -1234,13 +1191,13 @@ xfs_da3_node_toosmall(
 			blkno = nodehdr.back;
 		if (blkno == 0)
 			continue;
-		error = xfs_da3_node_read(state->args->trans, state->args->dp,
+		error = xfs_da3_node_read(state->args->trans, dp,
 					blkno, -1, &bp, state->args->whichfork);
 		if (error)
 			return(error);
 
 		node = bp->b_addr;
-		xfs_da3_node_hdr_from_disk(&thdr, node);
+		dp->d_ops->node_hdr_from_disk(&thdr, node);
 		xfs_trans_brelse(state->args->trans, bp);
 
 		if (count - thdr.count >= 0)
@@ -1287,7 +1244,7 @@ xfs_da3_node_lasthash(
 	struct xfs_da3_icnode_hdr nodehdr;
 
 	node = bp->b_addr;
-	xfs_da3_node_hdr_from_disk(&nodehdr, node);
+	dp->d_ops->node_hdr_from_disk(&nodehdr, node);
 	if (count)
 		*count = nodehdr.count;
 	if (!nodehdr.count)
@@ -1338,7 +1295,7 @@ xfs_da3_fixhashpath(
 		struct xfs_da3_icnode_hdr nodehdr;
 
 		node = blk->bp->b_addr;
-		xfs_da3_node_hdr_from_disk(&nodehdr, node);
+		dp->d_ops->node_hdr_from_disk(&nodehdr, node);
 		btree = dp->d_ops->node_tree_p(node);
 		if (be32_to_cpu(btree->hashval) == lasthash)
 			break;
@@ -1370,7 +1327,7 @@ xfs_da3_node_remove(
 	trace_xfs_da_node_remove(state->args);
 
 	node = drop_blk->bp->b_addr;
-	xfs_da3_node_hdr_from_disk(&nodehdr, node);
+	dp->d_ops->node_hdr_from_disk(&nodehdr, node);
 	ASSERT(drop_blk->index < nodehdr.count);
 	ASSERT(drop_blk->index >= 0);
 
@@ -1391,7 +1348,7 @@ xfs_da3_node_remove(
 	xfs_trans_log_buf(state->args->trans, drop_blk->bp,
 	    XFS_DA_LOGRANGE(node, &btree[index], sizeof(btree[index])));
 	nodehdr.count -= 1;
-	xfs_da3_node_hdr_to_disk(node, &nodehdr);
+	dp->d_ops->node_hdr_to_disk(node, &nodehdr);
 	xfs_trans_log_buf(state->args->trans, drop_blk->bp,
 	    XFS_DA_LOGRANGE(node, &node->hdr, dp->d_ops->node_hdr_size()));
 
@@ -1426,8 +1383,8 @@ xfs_da3_node_unbalance(
 
 	drop_node = drop_blk->bp->b_addr;
 	save_node = save_blk->bp->b_addr;
-	xfs_da3_node_hdr_from_disk(&drop_hdr, drop_node);
-	xfs_da3_node_hdr_from_disk(&save_hdr, save_node);
+	dp->d_ops->node_hdr_from_disk(&drop_hdr, drop_node);
+	dp->d_ops->node_hdr_from_disk(&save_hdr, save_node);
 	drop_btree = dp->d_ops->node_tree_p(drop_node);
 	save_btree = dp->d_ops->node_tree_p(save_node);
 	tp = state->args->trans;
@@ -1463,7 +1420,7 @@ xfs_da3_node_unbalance(
 	memcpy(&save_btree[sindex], &drop_btree[0], tmp);
 	save_hdr.count += drop_hdr.count;
 
-	xfs_da3_node_hdr_to_disk(save_node, &save_hdr);
+	dp->d_ops->node_hdr_to_disk(save_node, &save_hdr);
 	xfs_trans_log_buf(tp, save_blk->bp,
 		XFS_DA_LOGRANGE(save_node, &save_node->hdr,
 				dp->d_ops->node_hdr_size()));
@@ -1556,7 +1513,7 @@ xfs_da3_node_lookup_int(
 		 * Search an intermediate node for a match.
 		 */
 		node = blk->bp->b_addr;
-		xfs_da3_node_hdr_from_disk(&nodehdr, node);
+		dp->d_ops->node_hdr_from_disk(&nodehdr, node);
 		btree = dp->d_ops->node_tree_p(node);
 
 		max = nodehdr.count;
@@ -1665,8 +1622,8 @@ xfs_da3_node_order(
 
 	node1 = node1_bp->b_addr;
 	node2 = node2_bp->b_addr;
-	xfs_da3_node_hdr_from_disk(&node1hdr, node1);
-	xfs_da3_node_hdr_from_disk(&node2hdr, node2);
+	dp->d_ops->node_hdr_from_disk(&node1hdr, node1);
+	dp->d_ops->node_hdr_from_disk(&node2hdr, node2);
 	btree1 = dp->d_ops->node_tree_p(node1);
 	btree2 = dp->d_ops->node_tree_p(node2);
 
@@ -1888,7 +1845,7 @@ xfs_da3_path_shift(
 	level = (path->active-1) - 1;	/* skip bottom layer in path */
 	for (blk = &path->blk[level]; level >= 0; blk--, level--) {
 		node = blk->bp->b_addr;
-		xfs_da3_node_hdr_from_disk(&nodehdr, node);
+		dp->d_ops->node_hdr_from_disk(&nodehdr, node);
 		btree = dp->d_ops->node_tree_p(node);
 
 		if (forward && (blk->index < nodehdr.count - 1)) {
@@ -1945,7 +1902,7 @@ xfs_da3_path_shift(
 		case XFS_DA3_NODE_MAGIC:
 			blk->magic = XFS_DA_NODE_MAGIC;
 			node = (xfs_da_intnode_t *)info;
-			xfs_da3_node_hdr_from_disk(&nodehdr, node);
+			dp->d_ops->node_hdr_from_disk(&nodehdr, node);
 			btree = dp->d_ops->node_tree_p(node);
 			blk->hashval = be32_to_cpu(btree[nodehdr.count - 1].hashval);
 			if (forward)
@@ -2233,7 +2190,7 @@ xfs_da3_swap_lastblock(
 		struct xfs_dir2_leaf_entry *ents;
 
 		dead_leaf2 = (xfs_dir2_leaf_t *)dead_info;
-		xfs_dir3_leaf_hdr_from_disk(&leafhdr, dead_leaf2);
+		dp->d_ops->leaf_hdr_from_disk(&leafhdr, dead_leaf2);
 		ents = dp->d_ops->leaf_ents_p(dead_leaf2);
 		dead_level = 0;
 		dead_hash = be32_to_cpu(ents[leafhdr.count - 1].hashval);
@@ -2241,7 +2198,7 @@ xfs_da3_swap_lastblock(
 		struct xfs_da3_icnode_hdr deadhdr;
 
 		dead_node = (xfs_da_intnode_t *)dead_info;
-		xfs_da3_node_hdr_from_disk(&deadhdr, dead_node);
+		dp->d_ops->node_hdr_from_disk(&deadhdr, dead_node);
 		btree = dp->d_ops->node_tree_p(dead_node);
 		dead_level = deadhdr.level;
 		dead_hash = be32_to_cpu(btree[deadhdr.count - 1].hashval);
@@ -2301,7 +2258,7 @@ xfs_da3_swap_lastblock(
 		if (error)
 			goto done;
 		par_node = par_buf->b_addr;
-		xfs_da3_node_hdr_from_disk(&par_hdr, par_node);
+		dp->d_ops->node_hdr_from_disk(&par_hdr, par_node);
 		if (level >= 0 && level != par_hdr.level + 1) {
 			XFS_ERROR_REPORT("xfs_da_swap_lastblock(4)",
 					 XFS_ERRLEVEL_LOW, mp);
@@ -2352,7 +2309,7 @@ xfs_da3_swap_lastblock(
 		if (error)
 			goto done;
 		par_node = par_buf->b_addr;
-		xfs_da3_node_hdr_from_disk(&par_hdr, par_node);
+		dp->d_ops->node_hdr_from_disk(&par_hdr, par_node);
 		if (par_hdr.level != level) {
 			XFS_ERROR_REPORT("xfs_da_swap_lastblock(7)",
 					 XFS_ERRLEVEL_LOW, mp);
diff --git a/fs/xfs/xfs_da_format.c b/fs/xfs/xfs_da_format.c
index 72b48b5ec69a..b232c275791d 100644
--- a/fs/xfs/xfs_da_format.c
+++ b/fs/xfs/xfs_da_format.c
@@ -464,19 +464,84 @@ xfs_dir3_leaf_hdr_size(void)
 	return sizeof(struct xfs_dir3_leaf_hdr);
 }
 
-static inline int
+static int
 xfs_dir3_max_leaf_ents(struct xfs_mount *mp)
 {
 	return (mp->m_dirblksize - xfs_dir3_leaf_hdr_size()) /
 		(uint)sizeof(struct xfs_dir2_leaf_entry);
 }
 
-static inline struct xfs_dir2_leaf_entry *
+static struct xfs_dir2_leaf_entry *
 xfs_dir3_leaf_ents_p(struct xfs_dir2_leaf *lp)
 {
 	return ((struct xfs_dir3_leaf *)lp)->__ents;
 }
 
+static void
+xfs_dir2_leaf_hdr_from_disk(
+	struct xfs_dir3_icleaf_hdr	*to,
+	struct xfs_dir2_leaf		*from)
+{
+	to->forw = be32_to_cpu(from->hdr.info.forw);
+	to->back = be32_to_cpu(from->hdr.info.back);
+	to->magic = be16_to_cpu(from->hdr.info.magic);
+	to->count = be16_to_cpu(from->hdr.count);
+	to->stale = be16_to_cpu(from->hdr.stale);
+
+	ASSERT(to->magic == XFS_DIR2_LEAF1_MAGIC ||
+	       to->magic == XFS_DIR2_LEAFN_MAGIC);
+}
+
+static void
+xfs_dir2_leaf_hdr_to_disk(
+	struct xfs_dir2_leaf		*to,
+	struct xfs_dir3_icleaf_hdr	*from)
+{
+	ASSERT(from->magic == XFS_DIR2_LEAF1_MAGIC ||
+	       from->magic == XFS_DIR2_LEAFN_MAGIC);
+
+	to->hdr.info.forw = cpu_to_be32(from->forw);
+	to->hdr.info.back = cpu_to_be32(from->back);
+	to->hdr.info.magic = cpu_to_be16(from->magic);
+	to->hdr.count = cpu_to_be16(from->count);
+	to->hdr.stale = cpu_to_be16(from->stale);
+}
+
+static void
+xfs_dir3_leaf_hdr_from_disk(
+	struct xfs_dir3_icleaf_hdr	*to,
+	struct xfs_dir2_leaf		*from)
+{
+	struct xfs_dir3_leaf_hdr *hdr3 = (struct xfs_dir3_leaf_hdr *)from;
+
+	to->forw = be32_to_cpu(hdr3->info.hdr.forw);
+	to->back = be32_to_cpu(hdr3->info.hdr.back);
+	to->magic = be16_to_cpu(hdr3->info.hdr.magic);
+	to->count = be16_to_cpu(hdr3->count);
+	to->stale = be16_to_cpu(hdr3->stale);
+
+	ASSERT(to->magic == XFS_DIR3_LEAF1_MAGIC ||
+	       to->magic == XFS_DIR3_LEAFN_MAGIC);
+}
+
+static void
+xfs_dir3_leaf_hdr_to_disk(
+	struct xfs_dir2_leaf		*to,
+	struct xfs_dir3_icleaf_hdr	*from)
+{
+	struct xfs_dir3_leaf_hdr *hdr3 = (struct xfs_dir3_leaf_hdr *)to;
+
+	ASSERT(from->magic == XFS_DIR3_LEAF1_MAGIC ||
+	       from->magic == XFS_DIR3_LEAFN_MAGIC);
+
+	hdr3->info.hdr.forw = cpu_to_be32(from->forw);
+	hdr3->info.hdr.back = cpu_to_be32(from->back);
+	hdr3->info.hdr.magic = cpu_to_be16(from->magic);
+	hdr3->count = cpu_to_be16(from->count);
+	hdr3->stale = cpu_to_be16(from->stale);
+}
+
+
 /*
  * Directory/Attribute Node block operations
  */
@@ -504,6 +569,121 @@ xfs_da3_node_tree_p(struct xfs_da_intnode *dap)
 	return ((struct xfs_da3_intnode *)dap)->__btree;
 }
 
+static void
+xfs_da2_node_hdr_from_disk(
+	struct xfs_da3_icnode_hdr	*to,
+	struct xfs_da_intnode		*from)
+{
+	ASSERT(from->hdr.info.magic == cpu_to_be16(XFS_DA_NODE_MAGIC));
+	to->forw = be32_to_cpu(from->hdr.info.forw);
+	to->back = be32_to_cpu(from->hdr.info.back);
+	to->magic = be16_to_cpu(from->hdr.info.magic);
+	to->count = be16_to_cpu(from->hdr.__count);
+	to->level = be16_to_cpu(from->hdr.__level);
+}
+
+static void
+xfs_da2_node_hdr_to_disk(
+	struct xfs_da_intnode		*to,
+	struct xfs_da3_icnode_hdr	*from)
+{
+	ASSERT(from->magic == XFS_DA_NODE_MAGIC);
+	to->hdr.info.forw = cpu_to_be32(from->forw);
+	to->hdr.info.back = cpu_to_be32(from->back);
+	to->hdr.info.magic = cpu_to_be16(from->magic);
+	to->hdr.__count = cpu_to_be16(from->count);
+	to->hdr.__level = cpu_to_be16(from->level);
+}
+
+static void
+xfs_da3_node_hdr_from_disk(
+	struct xfs_da3_icnode_hdr	*to,
+	struct xfs_da_intnode		*from)
+{
+	struct xfs_da3_node_hdr *hdr3 = (struct xfs_da3_node_hdr *)from;
+
+	ASSERT(from->hdr.info.magic == cpu_to_be16(XFS_DA3_NODE_MAGIC));
+	to->forw = be32_to_cpu(hdr3->info.hdr.forw);
+	to->back = be32_to_cpu(hdr3->info.hdr.back);
+	to->magic = be16_to_cpu(hdr3->info.hdr.magic);
+	to->count = be16_to_cpu(hdr3->__count);
+	to->level = be16_to_cpu(hdr3->__level);
+}
+
+static void
+xfs_da3_node_hdr_to_disk(
+	struct xfs_da_intnode		*to,
+	struct xfs_da3_icnode_hdr	*from)
+{
+	struct xfs_da3_node_hdr *hdr3 = (struct xfs_da3_node_hdr *)to;
+
+	ASSERT(from->magic == XFS_DA3_NODE_MAGIC);
+	hdr3->info.hdr.forw = cpu_to_be32(from->forw);
+	hdr3->info.hdr.back = cpu_to_be32(from->back);
+	hdr3->info.hdr.magic = cpu_to_be16(from->magic);
+	hdr3->__count = cpu_to_be16(from->count);
+	hdr3->__level = cpu_to_be16(from->level);
+}
+
+
+/*
+ * Directory free space block operations
+ */
+static void
+xfs_dir2_free_hdr_from_disk(
+	struct xfs_dir3_icfree_hdr	*to,
+	struct xfs_dir2_free		*from)
+{
+	to->magic = be32_to_cpu(from->hdr.magic);
+	to->firstdb = be32_to_cpu(from->hdr.firstdb);
+	to->nvalid = be32_to_cpu(from->hdr.nvalid);
+	to->nused = be32_to_cpu(from->hdr.nused);
+	ASSERT(to->magic == XFS_DIR2_FREE_MAGIC);
+}
+
+static void
+xfs_dir2_free_hdr_to_disk(
+	struct xfs_dir2_free		*to,
+	struct xfs_dir3_icfree_hdr	*from)
+{
+	ASSERT(from->magic == XFS_DIR2_FREE_MAGIC);
+
+	to->hdr.magic = cpu_to_be32(from->magic);
+	to->hdr.firstdb = cpu_to_be32(from->firstdb);
+	to->hdr.nvalid = cpu_to_be32(from->nvalid);
+	to->hdr.nused = cpu_to_be32(from->nused);
+}
+
+static void
+xfs_dir3_free_hdr_from_disk(
+	struct xfs_dir3_icfree_hdr	*to,
+	struct xfs_dir2_free		*from)
+{
+	struct xfs_dir3_free_hdr *hdr3 = (struct xfs_dir3_free_hdr *)from;
+
+	to->magic = be32_to_cpu(hdr3->hdr.magic);
+	to->firstdb = be32_to_cpu(hdr3->firstdb);
+	to->nvalid = be32_to_cpu(hdr3->nvalid);
+	to->nused = be32_to_cpu(hdr3->nused);
+
+	ASSERT(to->magic == XFS_DIR3_FREE_MAGIC);
+}
+
+static void
+xfs_dir3_free_hdr_to_disk(
+	struct xfs_dir2_free		*to,
+	struct xfs_dir3_icfree_hdr	*from)
+{
+	struct xfs_dir3_free_hdr *hdr3 = (struct xfs_dir3_free_hdr *)to;
+
+	ASSERT(from->magic == XFS_DIR3_FREE_MAGIC);
+
+	hdr3->hdr.magic = cpu_to_be32(from->magic);
+	hdr3->firstdb = cpu_to_be32(from->firstdb);
+	hdr3->nvalid = cpu_to_be32(from->nvalid);
+	hdr3->nused = cpu_to_be32(from->nused);
+}
+
 const struct xfs_dir_ops xfs_dir2_ops = {
 	.sf_entsize = xfs_dir2_sf_entsize,
 	.sf_nextentry = xfs_dir2_sf_nextentry,
@@ -532,11 +712,18 @@ const struct xfs_dir_ops xfs_dir2_ops = {
 	.data_unused_p = xfs_dir2_data_unused_p,
 
 	.leaf_hdr_size = xfs_dir2_leaf_hdr_size,
+	.leaf_hdr_to_disk = xfs_dir2_leaf_hdr_to_disk,
+	.leaf_hdr_from_disk = xfs_dir2_leaf_hdr_from_disk,
 	.leaf_max_ents = xfs_dir2_max_leaf_ents,
 	.leaf_ents_p = xfs_dir2_leaf_ents_p,
 
 	.node_hdr_size = xfs_da2_node_hdr_size,
+	.node_hdr_to_disk = xfs_da2_node_hdr_to_disk,
+	.node_hdr_from_disk = xfs_da2_node_hdr_from_disk,
 	.node_tree_p = xfs_da2_node_tree_p,
+
+	.free_hdr_to_disk = xfs_dir2_free_hdr_to_disk,
+	.free_hdr_from_disk = xfs_dir2_free_hdr_from_disk,
 };
 
 const struct xfs_dir_ops xfs_dir2_ftype_ops = {
@@ -567,11 +754,18 @@ const struct xfs_dir_ops xfs_dir2_ftype_ops = {
 	.data_unused_p = xfs_dir2_data_unused_p,
 
 	.leaf_hdr_size = xfs_dir2_leaf_hdr_size,
+	.leaf_hdr_to_disk = xfs_dir2_leaf_hdr_to_disk,
+	.leaf_hdr_from_disk = xfs_dir2_leaf_hdr_from_disk,
 	.leaf_max_ents = xfs_dir2_max_leaf_ents,
 	.leaf_ents_p = xfs_dir2_leaf_ents_p,
 
 	.node_hdr_size = xfs_da2_node_hdr_size,
+	.node_hdr_to_disk = xfs_da2_node_hdr_to_disk,
+	.node_hdr_from_disk = xfs_da2_node_hdr_from_disk,
 	.node_tree_p = xfs_da2_node_tree_p,
+
+	.free_hdr_to_disk = xfs_dir2_free_hdr_to_disk,
+	.free_hdr_from_disk = xfs_dir2_free_hdr_from_disk,
 };
 
 const struct xfs_dir_ops xfs_dir3_ops = {
@@ -602,20 +796,31 @@ const struct xfs_dir_ops xfs_dir3_ops = {
 	.data_unused_p = xfs_dir3_data_unused_p,
 
 	.leaf_hdr_size = xfs_dir3_leaf_hdr_size,
+	.leaf_hdr_to_disk = xfs_dir3_leaf_hdr_to_disk,
+	.leaf_hdr_from_disk = xfs_dir3_leaf_hdr_from_disk,
 	.leaf_max_ents = xfs_dir3_max_leaf_ents,
 	.leaf_ents_p = xfs_dir3_leaf_ents_p,
 
 	.node_hdr_size = xfs_da3_node_hdr_size,
+	.node_hdr_to_disk = xfs_da3_node_hdr_to_disk,
+	.node_hdr_from_disk = xfs_da3_node_hdr_from_disk,
 	.node_tree_p = xfs_da3_node_tree_p,
+
+	.free_hdr_to_disk = xfs_dir3_free_hdr_to_disk,
+	.free_hdr_from_disk = xfs_dir3_free_hdr_from_disk,
 };
 
 const struct xfs_dir_ops xfs_dir2_nondir_ops = {
 	.node_hdr_size = xfs_da2_node_hdr_size,
+	.node_hdr_to_disk = xfs_da2_node_hdr_to_disk,
+	.node_hdr_from_disk = xfs_da2_node_hdr_from_disk,
 	.node_tree_p = xfs_da2_node_tree_p,
 };
 
 const struct xfs_dir_ops xfs_dir3_nondir_ops = {
 	.node_hdr_size = xfs_da3_node_hdr_size,
+	.node_hdr_to_disk = xfs_da3_node_hdr_to_disk,
+	.node_hdr_from_disk = xfs_da3_node_hdr_from_disk,
 	.node_tree_p = xfs_da3_node_tree_p,
 };
 
diff --git a/fs/xfs/xfs_da_format.h b/fs/xfs/xfs_da_format.h
index 69b4c6e1c52e..1ff7b9f42097 100644
--- a/fs/xfs/xfs_da_format.h
+++ b/fs/xfs/xfs_da_format.h
@@ -122,16 +122,6 @@ struct xfs_da3_icnode_hdr {
 	__uint16_t	level;
 };
 
-extern void xfs_da3_node_hdr_from_disk(struct xfs_da3_icnode_hdr *to,
-				       struct xfs_da_intnode *from);
-extern void xfs_da3_node_hdr_to_disk(struct xfs_da_intnode *to,
-				     struct xfs_da3_icnode_hdr *from);
-
-extern void xfs_da3_intnode_from_disk(struct xfs_da3_icnode_hdr *to,
-				      struct xfs_da_intnode *from);
-extern void xfs_da3_intnode_to_disk(struct xfs_da_intnode *to,
-				    struct xfs_da3_icnode_hdr *from);
-
 #define	XFS_LBSIZE(mp)	(mp)->m_sb.sb_blocksize
 
 /*
@@ -523,9 +513,6 @@ struct xfs_dir3_leaf {
 
 #define XFS_DIR3_LEAF_CRC_OFF  offsetof(struct xfs_dir3_leaf_hdr, info.crc)
 
-extern void xfs_dir3_leaf_hdr_from_disk(struct xfs_dir3_icleaf_hdr *to,
-					struct xfs_dir2_leaf *from);
-
 /*
  * Get address of the bestcount field in the single-leaf block.
  */
@@ -717,9 +704,6 @@ struct xfs_dir3_icfree_hdr {
 
 };
 
-void xfs_dir3_free_hdr_from_disk(struct xfs_dir3_icfree_hdr *to,
-				 struct xfs_dir2_free *from);
-
 static inline int
 xfs_dir3_free_hdr_size(struct xfs_mount *mp)
 {
diff --git a/fs/xfs/xfs_dir2.h b/fs/xfs/xfs_dir2.h
index c5cad9d9239d..61195348f667 100644
--- a/fs/xfs/xfs_dir2.h
+++ b/fs/xfs/xfs_dir2.h
@@ -76,13 +76,26 @@ struct xfs_dir_ops {
 		(*data_unused_p)(struct xfs_dir2_data_hdr *hdr);
 
 	int	(*leaf_hdr_size)(void);
+	void	(*leaf_hdr_to_disk)(struct xfs_dir2_leaf *to,
+				    struct xfs_dir3_icleaf_hdr *from);
+	void	(*leaf_hdr_from_disk)(struct xfs_dir3_icleaf_hdr *to,
+				      struct xfs_dir2_leaf *from);
 	int	(*leaf_max_ents)(struct xfs_mount *mp);
 	struct xfs_dir2_leaf_entry *
 		(*leaf_ents_p)(struct xfs_dir2_leaf *lp);
 
 	int	(*node_hdr_size)(void);
+	void	(*node_hdr_to_disk)(struct xfs_da_intnode *to,
+				    struct xfs_da3_icnode_hdr *from);
+	void	(*node_hdr_from_disk)(struct xfs_da3_icnode_hdr *to,
+				      struct xfs_da_intnode *from);
 	struct xfs_da_node_entry *
 		(*node_tree_p)(struct xfs_da_intnode *dap);
+
+	void	(*free_hdr_to_disk)(struct xfs_dir2_free *to,
+				    struct xfs_dir3_icfree_hdr *from);
+	void	(*free_hdr_from_disk)(struct xfs_dir3_icfree_hdr *to,
+				      struct xfs_dir2_free *from);
 };
 
 extern const struct xfs_dir_ops *
diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c
index 75f815786b97..c1ff552aa7bf 100644
--- a/fs/xfs/xfs_dir2_block.c
+++ b/fs/xfs/xfs_dir2_block.c
@@ -936,7 +936,7 @@ xfs_dir2_leaf_to_block(
 	tp = args->trans;
 	mp = dp->i_mount;
 	leaf = lbp->b_addr;
-	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
+	dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
 	ents = dp->d_ops->leaf_ents_p(leaf);
 	ltp = xfs_dir2_leaf_tail_p(mp, leaf);
 
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
index 16fdc0e627a7..2fb8db9fb574 100644
--- a/fs/xfs/xfs_dir2_leaf.c
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -64,7 +64,7 @@ xfs_dir3_leaf1_check(
 	struct xfs_dir2_leaf	*leaf = bp->b_addr;
 	struct xfs_dir3_icleaf_hdr leafhdr;
 
-	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
+	dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
 
 	if (leafhdr.magic == XFS_DIR3_LEAF1_MAGIC) {
 		struct xfs_dir3_leaf_hdr *leaf3 = bp->b_addr;
@@ -79,62 +79,6 @@ xfs_dir3_leaf1_check(
 #define	xfs_dir3_leaf_check(dp, bp)
 #endif
 
-void
-xfs_dir3_leaf_hdr_from_disk(
-	struct xfs_dir3_icleaf_hdr	*to,
-	struct xfs_dir2_leaf		*from)
-{
-	if (from->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAF1_MAGIC) ||
-	    from->hdr.info.magic == cpu_to_be16(XFS_DIR2_LEAFN_MAGIC)) {
-		to->forw = be32_to_cpu(from->hdr.info.forw);
-		to->back = be32_to_cpu(from->hdr.info.back);
-		to->magic = be16_to_cpu(from->hdr.info.magic);
-		to->count = be16_to_cpu(from->hdr.count);
-		to->stale = be16_to_cpu(from->hdr.stale);
-	} else {
-		struct xfs_dir3_leaf_hdr *hdr3 = (struct xfs_dir3_leaf_hdr *)from;
-
-		to->forw = be32_to_cpu(hdr3->info.hdr.forw);
-		to->back = be32_to_cpu(hdr3->info.hdr.back);
-		to->magic = be16_to_cpu(hdr3->info.hdr.magic);
-		to->count = be16_to_cpu(hdr3->count);
-		to->stale = be16_to_cpu(hdr3->stale);
-	}
-
-	ASSERT(to->magic == XFS_DIR2_LEAF1_MAGIC ||
-	       to->magic == XFS_DIR3_LEAF1_MAGIC ||
-	       to->magic == XFS_DIR2_LEAFN_MAGIC ||
-	       to->magic == XFS_DIR3_LEAFN_MAGIC);
-}
-
-void
-xfs_dir3_leaf_hdr_to_disk(
-	struct xfs_dir2_leaf		*to,
-	struct xfs_dir3_icleaf_hdr	*from)
-{
-	ASSERT(from->magic == XFS_DIR2_LEAF1_MAGIC ||
-	       from->magic == XFS_DIR3_LEAF1_MAGIC ||
-	       from->magic == XFS_DIR2_LEAFN_MAGIC ||
-	       from->magic == XFS_DIR3_LEAFN_MAGIC);
-
-	if (from->magic == XFS_DIR2_LEAF1_MAGIC ||
-	    from->magic == XFS_DIR2_LEAFN_MAGIC) {
-		to->hdr.info.forw = cpu_to_be32(from->forw);
-		to->hdr.info.back = cpu_to_be32(from->back);
-		to->hdr.info.magic = cpu_to_be16(from->magic);
-		to->hdr.count = cpu_to_be16(from->count);
-		to->hdr.stale = cpu_to_be16(from->stale);
-	} else {
-		struct xfs_dir3_leaf_hdr *hdr3 = (struct xfs_dir3_leaf_hdr *)to;
-
-		hdr3->info.hdr.forw = cpu_to_be32(from->forw);
-		hdr3->info.hdr.back = cpu_to_be32(from->back);
-		hdr3->info.hdr.magic = cpu_to_be16(from->magic);
-		hdr3->count = cpu_to_be16(from->count);
-		hdr3->stale = cpu_to_be16(from->stale);
-	}
-}
-
 bool
 xfs_dir3_leaf_check_int(
 	struct xfs_mount	*mp,
@@ -147,6 +91,7 @@ xfs_dir3_leaf_check_int(
 	int			stale;
 	int			i;
 	const struct xfs_dir_ops *ops;
+	struct xfs_dir3_icleaf_hdr leafhdr;
 
 	/*
 	 * we can be passed a null dp here from a verifier, so we need to go the
@@ -154,6 +99,11 @@ xfs_dir3_leaf_check_int(
 	 */
 	ops = xfs_dir_get_ops(mp, dp);
 
+	if (!hdr) {
+		ops->leaf_hdr_from_disk(&leafhdr, leaf);
+		hdr = &leafhdr;
+	}
+
 	ents = ops->leaf_ents_p(leaf);
 	ltp = xfs_dir2_leaf_tail_p(mp, leaf);
 
@@ -198,7 +148,6 @@ xfs_dir3_leaf_verify(
 {
 	struct xfs_mount	*mp = bp->b_target->bt_mount;
 	struct xfs_dir2_leaf	*leaf = bp->b_addr;
-	struct xfs_dir3_icleaf_hdr leafhdr;
 
 	ASSERT(magic == XFS_DIR2_LEAF1_MAGIC || magic == XFS_DIR2_LEAFN_MAGIC);
 
@@ -220,8 +169,7 @@ xfs_dir3_leaf_verify(
 			return false;
 	}
 
-	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
-	return xfs_dir3_leaf_check_int(mp, NULL, &leafhdr, leaf);
+	return xfs_dir3_leaf_check_int(mp, NULL, NULL, leaf);
 }
 
 static void
@@ -474,10 +422,10 @@ xfs_dir2_block_to_leaf(
 	/*
 	 * Set the counts in the leaf header.
 	 */
-	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
+	dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
 	leafhdr.count = be32_to_cpu(btp->count);
 	leafhdr.stale = be32_to_cpu(btp->stale);
-	xfs_dir3_leaf_hdr_to_disk(leaf, &leafhdr);
+	dp->d_ops->leaf_hdr_to_disk(leaf, &leafhdr);
 	xfs_dir3_leaf_log_header(tp, dp, lbp);
 
 	/*
@@ -706,7 +654,7 @@ xfs_dir2_leaf_addname(
 	leaf = lbp->b_addr;
 	ltp = xfs_dir2_leaf_tail_p(mp, leaf);
 	ents = dp->d_ops->leaf_ents_p(leaf);
-	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
+	dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
 	bestsp = xfs_dir2_leaf_bests_p(ltp);
 	length = dp->d_ops->data_entsize(args->namelen);
 
@@ -945,7 +893,7 @@ xfs_dir2_leaf_addname(
 	/*
 	 * Log the leaf fields and give up the buffers.
 	 */
-	xfs_dir3_leaf_hdr_to_disk(leaf, &leafhdr);
+	dp->d_ops->leaf_hdr_to_disk(leaf, &leafhdr);
 	xfs_dir3_leaf_log_header(tp, dp, lbp);
 	xfs_dir3_leaf_log_ents(tp, dp, lbp, lfloglow, lfloghigh);
 	xfs_dir3_leaf_check(dp, lbp);
@@ -968,6 +916,7 @@ xfs_dir3_leaf_compact(
 	int		loglow;		/* first leaf entry to log */
 	int		to;		/* target leaf index */
 	struct xfs_dir2_leaf_entry *ents;
+	struct xfs_inode *dp = args->dp;
 
 	leaf = bp->b_addr;
 	if (!leafhdr->stale)
@@ -976,7 +925,7 @@ xfs_dir3_leaf_compact(
 	/*
 	 * Compress out the stale entries in place.
 	 */
-	ents = args->dp->d_ops->leaf_ents_p(leaf);
+	ents = dp->d_ops->leaf_ents_p(leaf);
 	for (from = to = 0, loglow = -1; from < leafhdr->count; from++) {
 		if (ents[from].address == cpu_to_be32(XFS_DIR2_NULL_DATAPTR))
 			continue;
@@ -997,11 +946,10 @@ xfs_dir3_leaf_compact(
 	leafhdr->count -= leafhdr->stale;
 	leafhdr->stale = 0;
 
-	xfs_dir3_leaf_hdr_to_disk(leaf, leafhdr);
-	xfs_dir3_leaf_log_header(args->trans, args->dp, bp);
+	dp->d_ops->leaf_hdr_to_disk(leaf, leafhdr);
+	xfs_dir3_leaf_log_header(args->trans, dp, bp);
 	if (loglow != -1)
-		xfs_dir3_leaf_log_ents(args->trans, args->dp, bp,
-				       loglow, to - 1);
+		xfs_dir3_leaf_log_ents(args->trans, dp, bp, loglow, to - 1);
 }
 
 /*
@@ -1290,7 +1238,7 @@ xfs_dir2_leaf_lookup_int(
 	leaf = lbp->b_addr;
 	xfs_dir3_leaf_check(dp, lbp);
 	ents = dp->d_ops->leaf_ents_p(leaf);
-	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
+	dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
 
 	/*
 	 * Look for the first leaf entry with our hash value.
@@ -1425,7 +1373,7 @@ xfs_dir2_leaf_removename(
 	hdr = dbp->b_addr;
 	xfs_dir3_data_check(dp, dbp);
 	bf = dp->d_ops->data_bestfree_p(hdr);
-	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
+	dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
 	ents = dp->d_ops->leaf_ents_p(leaf);
 	/*
 	 * Point to the leaf entry, use that to point to the data entry.
@@ -1449,7 +1397,7 @@ xfs_dir2_leaf_removename(
 	 * We just mark the leaf entry stale by putting a null in it.
 	 */
 	leafhdr.stale++;
-	xfs_dir3_leaf_hdr_to_disk(leaf, &leafhdr);
+	dp->d_ops->leaf_hdr_to_disk(leaf, &leafhdr);
 	xfs_dir3_leaf_log_header(tp, dp, lbp);
 
 	lep->address = cpu_to_be32(XFS_DIR2_NULL_DATAPTR);
@@ -1602,7 +1550,7 @@ xfs_dir2_leaf_search_hash(
 
 	leaf = lbp->b_addr;
 	ents = args->dp->d_ops->leaf_ents_p(leaf);
-	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
+	args->dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
 
 	/*
 	 * Note, the table cannot be empty, so we have to go through the loop.
@@ -1791,7 +1739,7 @@ xfs_dir2_node_to_leaf(
 		return 0;
 	lbp = state->path.blk[0].bp;
 	leaf = lbp->b_addr;
-	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
+	dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
 
 	ASSERT(leafhdr.magic == XFS_DIR2_LEAFN_MAGIC ||
 	       leafhdr.magic == XFS_DIR3_LEAFN_MAGIC);
@@ -1803,7 +1751,7 @@ xfs_dir2_node_to_leaf(
 	if (error)
 		return error;
 	free = fbp->b_addr;
-	xfs_dir3_free_hdr_from_disk(&freehdr, free);
+	dp->d_ops->free_hdr_from_disk(&freehdr, free);
 
 	ASSERT(!freehdr.firstdb);
 
@@ -1840,7 +1788,7 @@ xfs_dir2_node_to_leaf(
 	memcpy(xfs_dir2_leaf_bests_p(ltp), xfs_dir3_free_bests_p(mp, free),
 		freehdr.nvalid * sizeof(xfs_dir2_data_off_t));
 
-	xfs_dir3_leaf_hdr_to_disk(leaf, &leafhdr);
+	dp->d_ops->leaf_hdr_to_disk(leaf, &leafhdr);
 	xfs_dir3_leaf_log_header(tp, dp, lbp);
 	xfs_dir3_leaf_log_bests(tp, lbp, 0, be32_to_cpu(ltp->bestcount) - 1);
 	xfs_dir3_leaf_log_tail(tp, lbp);
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index 3a426ed9b16e..eaee8c36bcc4 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -68,7 +68,7 @@ xfs_dir3_leafn_check(
 	struct xfs_dir2_leaf	*leaf = bp->b_addr;
 	struct xfs_dir3_icleaf_hdr leafhdr;
 
-	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
+	dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
 
 	if (leafhdr.magic == XFS_DIR3_LEAFN_MAGIC) {
 		struct xfs_dir3_leaf_hdr *leaf3 = bp->b_addr;
@@ -192,53 +192,6 @@ xfs_dir2_free_try_read(
 	return __xfs_dir3_free_read(tp, dp, fbno, -2, bpp);
 }
 
-
-void
-xfs_dir3_free_hdr_from_disk(
-	struct xfs_dir3_icfree_hdr	*to,
-	struct xfs_dir2_free		*from)
-{
-	if (from->hdr.magic == cpu_to_be32(XFS_DIR2_FREE_MAGIC)) {
-		to->magic = be32_to_cpu(from->hdr.magic);
-		to->firstdb = be32_to_cpu(from->hdr.firstdb);
-		to->nvalid = be32_to_cpu(from->hdr.nvalid);
-		to->nused = be32_to_cpu(from->hdr.nused);
-	} else {
-		struct xfs_dir3_free_hdr *hdr3 = (struct xfs_dir3_free_hdr *)from;
-
-		to->magic = be32_to_cpu(hdr3->hdr.magic);
-		to->firstdb = be32_to_cpu(hdr3->firstdb);
-		to->nvalid = be32_to_cpu(hdr3->nvalid);
-		to->nused = be32_to_cpu(hdr3->nused);
-	}
-
-	ASSERT(to->magic == XFS_DIR2_FREE_MAGIC ||
-	       to->magic == XFS_DIR3_FREE_MAGIC);
-}
-
-static void
-xfs_dir3_free_hdr_to_disk(
-	struct xfs_dir2_free		*to,
-	struct xfs_dir3_icfree_hdr	*from)
-{
-	ASSERT(from->magic == XFS_DIR2_FREE_MAGIC ||
-	       from->magic == XFS_DIR3_FREE_MAGIC);
-
-	if (from->magic == XFS_DIR2_FREE_MAGIC) {
-		to->hdr.magic = cpu_to_be32(from->magic);
-		to->hdr.firstdb = cpu_to_be32(from->firstdb);
-		to->hdr.nvalid = cpu_to_be32(from->nvalid);
-		to->hdr.nused = cpu_to_be32(from->nused);
-	} else {
-		struct xfs_dir3_free_hdr *hdr3 = (struct xfs_dir3_free_hdr *)to;
-
-		hdr3->hdr.magic = cpu_to_be32(from->magic);
-		hdr3->firstdb = cpu_to_be32(from->firstdb);
-		hdr3->nvalid = cpu_to_be32(from->nvalid);
-		hdr3->nused = cpu_to_be32(from->nused);
-	}
-}
-
 static int
 xfs_dir3_free_get_buf(
 	struct xfs_trans	*tp,
@@ -276,7 +229,7 @@ xfs_dir3_free_get_buf(
 		uuid_copy(&hdr3->hdr.uuid, &mp->m_sb.sb_uuid);
 	} else
 		hdr.magic = XFS_DIR2_FREE_MAGIC;
-	xfs_dir3_free_hdr_to_disk(bp->b_addr, &hdr);
+	dp->d_ops->free_hdr_to_disk(bp->b_addr, &hdr);
 	*bpp = bp;
 	return 0;
 }
@@ -368,7 +321,7 @@ xfs_dir2_leaf_to_node(
 		return error;
 
 	free = fbp->b_addr;
-	xfs_dir3_free_hdr_from_disk(&freehdr, free);
+	dp->d_ops->free_hdr_from_disk(&freehdr, free);
 	leaf = lbp->b_addr;
 	ltp = xfs_dir2_leaf_tail_p(mp, leaf);
 	ASSERT(be32_to_cpu(ltp->bestcount) <=
@@ -392,7 +345,7 @@ xfs_dir2_leaf_to_node(
 	freehdr.nused = n;
 	freehdr.nvalid = be32_to_cpu(ltp->bestcount);
 
-	xfs_dir3_free_hdr_to_disk(fbp->b_addr, &freehdr);
+	dp->d_ops->free_hdr_to_disk(fbp->b_addr, &freehdr);
 	xfs_dir2_free_log_bests(tp, fbp, 0, freehdr.nvalid - 1);
 	xfs_dir2_free_log_header(tp, fbp);
 
@@ -442,7 +395,7 @@ xfs_dir2_leafn_add(
 	mp = dp->i_mount;
 	tp = args->trans;
 	leaf = bp->b_addr;
-	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
+	dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
 	ents = dp->d_ops->leaf_ents_p(leaf);
 
 	/*
@@ -497,7 +450,7 @@ xfs_dir2_leafn_add(
 	lep->address = cpu_to_be32(xfs_dir2_db_off_to_dataptr(mp,
 				args->blkno, args->index));
 
-	xfs_dir3_leaf_hdr_to_disk(leaf, &leafhdr);
+	dp->d_ops->leaf_hdr_to_disk(leaf, &leafhdr);
 	xfs_dir3_leaf_log_header(tp, dp, bp);
 	xfs_dir3_leaf_log_ents(tp, dp, bp, lfloglow, lfloghigh);
 	xfs_dir3_leaf_check(dp, bp);
@@ -507,20 +460,20 @@ xfs_dir2_leafn_add(
 #ifdef DEBUG
 static void
 xfs_dir2_free_hdr_check(
-	struct xfs_mount *mp,
+	struct xfs_inode *dp,
 	struct xfs_buf	*bp,
 	xfs_dir2_db_t	db)
 {
 	struct xfs_dir3_icfree_hdr hdr;
 
-	xfs_dir3_free_hdr_from_disk(&hdr, bp->b_addr);
+	dp->d_ops->free_hdr_from_disk(&hdr, bp->b_addr);
 
-	ASSERT((hdr.firstdb % xfs_dir3_free_max_bests(mp)) == 0);
+	ASSERT((hdr.firstdb % xfs_dir3_free_max_bests(dp->i_mount)) == 0);
 	ASSERT(hdr.firstdb <= db);
 	ASSERT(db < hdr.firstdb + hdr.nvalid);
 }
 #else
-#define xfs_dir2_free_hdr_check(mp, dp, db)
+#define xfs_dir2_free_hdr_check(dp, bp, db)
 #endif	/* DEBUG */
 
 /*
@@ -537,7 +490,7 @@ xfs_dir2_leafn_lasthash(
 	struct xfs_dir2_leaf_entry *ents;
 	struct xfs_dir3_icleaf_hdr leafhdr;
 
-	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
+	dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
 
 	ASSERT(leafhdr.magic == XFS_DIR2_LEAFN_MAGIC ||
 	       leafhdr.magic == XFS_DIR3_LEAFN_MAGIC);
@@ -584,7 +537,7 @@ xfs_dir2_leafn_lookup_for_addname(
 	tp = args->trans;
 	mp = dp->i_mount;
 	leaf = bp->b_addr;
-	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
+	dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
 	ents = dp->d_ops->leaf_ents_p(leaf);
 
 	xfs_dir3_leaf_check(dp, bp);
@@ -655,7 +608,7 @@ xfs_dir2_leafn_lookup_for_addname(
 					return error;
 				free = curbp->b_addr;
 
-				xfs_dir2_free_hdr_check(mp, curbp, curdb);
+				xfs_dir2_free_hdr_check(dp, curbp, curdb);
 			}
 			/*
 			 * Get the index for our entry.
@@ -734,7 +687,7 @@ xfs_dir2_leafn_lookup_for_entry(
 	tp = args->trans;
 	mp = dp->i_mount;
 	leaf = bp->b_addr;
-	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
+	dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
 	ents = dp->d_ops->leaf_ents_p(leaf);
 
 	xfs_dir3_leaf_check(dp, bp);
@@ -969,8 +922,8 @@ xfs_dir2_leafn_order(
 	struct xfs_dir3_icleaf_hdr hdr1;
 	struct xfs_dir3_icleaf_hdr hdr2;
 
-	xfs_dir3_leaf_hdr_from_disk(&hdr1, leaf1);
-	xfs_dir3_leaf_hdr_from_disk(&hdr2, leaf2);
+	dp->d_ops->leaf_hdr_from_disk(&hdr1, leaf1);
+	dp->d_ops->leaf_hdr_from_disk(&hdr2, leaf2);
 	ents1 = dp->d_ops->leaf_ents_p(leaf1);
 	ents2 = dp->d_ops->leaf_ents_p(leaf2);
 
@@ -1025,8 +978,8 @@ xfs_dir2_leafn_rebalance(
 	}
 	leaf1 = blk1->bp->b_addr;
 	leaf2 = blk2->bp->b_addr;
-	xfs_dir3_leaf_hdr_from_disk(&hdr1, leaf1);
-	xfs_dir3_leaf_hdr_from_disk(&hdr2, leaf2);
+	dp->d_ops->leaf_hdr_from_disk(&hdr1, leaf1);
+	dp->d_ops->leaf_hdr_from_disk(&hdr2, leaf2);
 	ents1 = dp->d_ops->leaf_ents_p(leaf1);
 	ents2 = dp->d_ops->leaf_ents_p(leaf2);
 
@@ -1074,8 +1027,8 @@ xfs_dir2_leafn_rebalance(
 	ASSERT(hdr1.stale + hdr2.stale == oldstale);
 
 	/* log the changes made when moving the entries */
-	xfs_dir3_leaf_hdr_to_disk(leaf1, &hdr1);
-	xfs_dir3_leaf_hdr_to_disk(leaf2, &hdr2);
+	dp->d_ops->leaf_hdr_to_disk(leaf1, &hdr1);
+	dp->d_ops->leaf_hdr_to_disk(leaf2, &hdr2);
 	xfs_dir3_leaf_log_header(args->trans, dp, blk1->bp);
 	xfs_dir3_leaf_log_header(args->trans, dp, blk2->bp);
 
@@ -1124,8 +1077,9 @@ xfs_dir3_data_block_free(
 	int			logfree = 0;
 	__be16			*bests;
 	struct xfs_dir3_icfree_hdr freehdr;
+	struct xfs_inode	*dp = args->dp;
 
-	xfs_dir3_free_hdr_from_disk(&freehdr, free);
+	dp->d_ops->free_hdr_from_disk(&freehdr, free);
 
 	bests = xfs_dir3_free_bests_p(tp->t_mountp, free);
 	if (hdr) {
@@ -1161,7 +1115,7 @@ xfs_dir3_data_block_free(
 		logfree = 1;
 	}
 
-	xfs_dir3_free_hdr_to_disk(free, &freehdr);
+	dp->d_ops->free_hdr_to_disk(free, &freehdr);
 	xfs_dir2_free_log_header(tp, fbp);
 
 	/*
@@ -1226,7 +1180,7 @@ xfs_dir2_leafn_remove(
 	tp = args->trans;
 	mp = dp->i_mount;
 	leaf = bp->b_addr;
-	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
+	dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
 	ents = dp->d_ops->leaf_ents_p(leaf);
 
 	/*
@@ -1247,7 +1201,7 @@ xfs_dir2_leafn_remove(
 	 * Log the leaf block changes.
 	 */
 	leafhdr.stale++;
-	xfs_dir3_leaf_hdr_to_disk(leaf, &leafhdr);
+	dp->d_ops->leaf_hdr_to_disk(leaf, &leafhdr);
 	xfs_dir3_leaf_log_header(tp, dp, bp);
 
 	lep->address = cpu_to_be32(XFS_DIR2_NULL_DATAPTR);
@@ -1298,7 +1252,7 @@ xfs_dir2_leafn_remove(
 #ifdef DEBUG
 	{
 		struct xfs_dir3_icfree_hdr freehdr;
-		xfs_dir3_free_hdr_from_disk(&freehdr, free);
+		dp->d_ops->free_hdr_from_disk(&freehdr, free);
 		ASSERT(freehdr.firstdb == xfs_dir3_free_max_bests(mp) *
 					  (fdb - XFS_DIR2_FREE_FIRSTDB(mp)));
 	}
@@ -1449,7 +1403,7 @@ xfs_dir2_leafn_toosmall(
 	 */
 	blk = &state->path.blk[state->path.active - 1];
 	leaf = blk->bp->b_addr;
-	xfs_dir3_leaf_hdr_from_disk(&leafhdr, leaf);
+	dp->d_ops->leaf_hdr_from_disk(&leafhdr, leaf);
 	ents = dp->d_ops->leaf_ents_p(leaf);
 	xfs_dir3_leaf_check(dp, blk->bp);
 
@@ -1511,7 +1465,7 @@ xfs_dir2_leafn_toosmall(
 		bytes = state->blocksize - (state->blocksize >> 2);
 
 		leaf = bp->b_addr;
-		xfs_dir3_leaf_hdr_from_disk(&hdr2, leaf);
+		dp->d_ops->leaf_hdr_from_disk(&hdr2, leaf);
 		ents = dp->d_ops->leaf_ents_p(leaf);
 		count += hdr2.count - hdr2.stale;
 		bytes -= count * sizeof(ents[0]);
@@ -1574,10 +1528,10 @@ xfs_dir2_leafn_unbalance(
 	drop_leaf = drop_blk->bp->b_addr;
 	save_leaf = save_blk->bp->b_addr;
 
-	xfs_dir3_leaf_hdr_from_disk(&savehdr, save_leaf);
-	xfs_dir3_leaf_hdr_from_disk(&drophdr, drop_leaf);
-	sents = args->dp->d_ops->leaf_ents_p(save_leaf);
-	dents = args->dp->d_ops->leaf_ents_p(drop_leaf);
+	dp->d_ops->leaf_hdr_from_disk(&savehdr, save_leaf);
+	dp->d_ops->leaf_hdr_from_disk(&drophdr, drop_leaf);
+	sents = dp->d_ops->leaf_ents_p(save_leaf);
+	dents = dp->d_ops->leaf_ents_p(drop_leaf);
 
 	/*
 	 * If there are any stale leaf entries, take this opportunity
@@ -1603,8 +1557,8 @@ xfs_dir2_leafn_unbalance(
 	save_blk->hashval = be32_to_cpu(sents[savehdr.count - 1].hashval);
 
 	/* log the changes made when moving the entries */
-	xfs_dir3_leaf_hdr_to_disk(save_leaf, &savehdr);
-	xfs_dir3_leaf_hdr_to_disk(drop_leaf, &drophdr);
+	dp->d_ops->leaf_hdr_to_disk(save_leaf, &savehdr);
+	dp->d_ops->leaf_hdr_to_disk(drop_leaf, &drophdr);
 	xfs_dir3_leaf_log_header(args->trans, dp, save_blk->bp);
 	xfs_dir3_leaf_log_header(args->trans, dp, drop_blk->bp);
 
@@ -1735,7 +1689,7 @@ xfs_dir2_node_addname_int(
 		free = fbp->b_addr;
 		findex = fblk->index;
 		bests = xfs_dir3_free_bests_p(mp, free);
-		xfs_dir3_free_hdr_from_disk(&freehdr, free);
+		dp->d_ops->free_hdr_from_disk(&freehdr, free);
 
 		/*
 		 * This means the free entry showed that the data block had
@@ -1828,7 +1782,7 @@ xfs_dir2_node_addname_int(
 		 * there, so we have to do it here to avoid warnings. Blech.
 		 */
 		bests = xfs_dir3_free_bests_p(mp, free);
-		xfs_dir3_free_hdr_from_disk(&freehdr, free);
+		dp->d_ops->free_hdr_from_disk(&freehdr, free);
 		if (be16_to_cpu(bests[findex]) != NULLDATAOFF &&
 		    be16_to_cpu(bests[findex]) >= length)
 			dbno = freehdr.firstdb + findex;
@@ -1927,7 +1881,7 @@ xfs_dir2_node_addname_int(
 				return error;
 			free = fbp->b_addr;
 			bests = xfs_dir3_free_bests_p(mp, free);
-			xfs_dir3_free_hdr_from_disk(&freehdr, free);
+			dp->d_ops->free_hdr_from_disk(&freehdr, free);
 
 			/*
 			 * Remember the first slot as our empty slot.
@@ -1937,7 +1891,7 @@ xfs_dir2_node_addname_int(
 		} else {
 			free = fbp->b_addr;
 			bests = xfs_dir3_free_bests_p(mp, free);
-			xfs_dir3_free_hdr_from_disk(&freehdr, free);
+			dp->d_ops->free_hdr_from_disk(&freehdr, free);
 		}
 
 		/*
@@ -1962,7 +1916,7 @@ xfs_dir2_node_addname_int(
 		 */
 		if (bests[findex] == cpu_to_be16(NULLDATAOFF)) {
 			freehdr.nused++;
-			xfs_dir3_free_hdr_to_disk(fbp->b_addr, &freehdr);
+			dp->d_ops->free_hdr_to_disk(fbp->b_addr, &freehdr);
 			xfs_dir2_free_log_header(tp, fbp);
 		}
 		/*
@@ -2294,7 +2248,7 @@ xfs_dir2_node_trim_free(
 	if (!bp)
 		return 0;
 	free = bp->b_addr;
-	xfs_dir3_free_hdr_from_disk(&freehdr, free);
+	dp->d_ops->free_hdr_from_disk(&freehdr, free);
 
 	/*
 	 * If there are used entries, there's nothing to do.
diff --git a/fs/xfs/xfs_dir2_priv.h b/fs/xfs/xfs_dir2_priv.h
index 3e4b5ba7b41f..8b9d2281f85b 100644
--- a/fs/xfs/xfs_dir2_priv.h
+++ b/fs/xfs/xfs_dir2_priv.h
@@ -94,10 +94,6 @@ xfs_dir3_leaf_find_entry(struct xfs_dir3_icleaf_hdr *leafhdr,
 		int lowstale, int highstale, int *lfloglow, int *lfloghigh);
 extern int xfs_dir2_node_to_leaf(struct xfs_da_state *state);
 
-extern void xfs_dir3_leaf_hdr_from_disk(struct xfs_dir3_icleaf_hdr *to,
-		struct xfs_dir2_leaf *from);
-extern void xfs_dir3_leaf_hdr_to_disk(struct xfs_dir2_leaf *to,
-		struct xfs_dir3_icleaf_hdr *from);
 extern bool xfs_dir3_leaf_check_int(struct xfs_mount *mp, struct xfs_inode *dp,
 		struct xfs_dir3_icleaf_hdr *hdr, struct xfs_dir2_leaf *leaf);
 
-- 
cgit 


From 24dd0f546c366da68f33bbf2ecef2306f8c2281d Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Wed, 30 Oct 2013 13:48:41 -0500
Subject: xfs: convert directory vector functions to constants

Next step in the vectorisation process is the directory free block
encode/decode operations. There are relatively few of these, though
there are quite a number of calls to them.

Binary sizes:

   text    data     bss     dec     hex filename
 794490   96802    1096  892388   d9de4 fs/xfs/xfs.o.orig
 792986   96802    1096  890884   d9804 fs/xfs/xfs.o.p1
 792350   96802    1096  890248   d9588 fs/xfs/xfs.o.p2
 789293   96802    1096  887191   d8997 fs/xfs/xfs.o.p3
 789005   96802    1096  886903   d8997 fs/xfs/xfs.o.p4
 789061   96802    1096  886959   d88af fs/xfs/xfs.o.p5
 789733   96802    1096  887631   d8b4f fs/xfs/xfs.o.p6
 791421   96802    1096  889319   d91e7 fs/xfs/xfs.o.p7
 791701   96802    1096  889599   d92ff fs/xfs/xfs.o.p8

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_da_format.c | 89 ++++++++++++++++++++++++++++++++++++++++++++++++++
 fs/xfs/xfs_da_format.h | 39 ----------------------
 fs/xfs/xfs_dir2.h      |  5 +++
 fs/xfs/xfs_dir2_leaf.c |  2 +-
 fs/xfs/xfs_dir2_node.c | 61 +++++++++++++++++-----------------
 5 files changed, 126 insertions(+), 70 deletions(-)

diff --git a/fs/xfs/xfs_da_format.c b/fs/xfs/xfs_da_format.c
index b232c275791d..01e6f9a9b804 100644
--- a/fs/xfs/xfs_da_format.c
+++ b/fs/xfs/xfs_da_format.c
@@ -629,6 +629,80 @@ xfs_da3_node_hdr_to_disk(
 /*
  * Directory free space block operations
  */
+static int
+xfs_dir2_free_hdr_size(void)
+{
+	return sizeof(struct xfs_dir2_free_hdr);
+}
+
+static int
+xfs_dir2_free_max_bests(struct xfs_mount *mp)
+{
+	return (mp->m_dirblksize - xfs_dir2_free_hdr_size()) /
+		sizeof(xfs_dir2_data_off_t);
+}
+
+static __be16 *
+xfs_dir2_free_bests_p(struct xfs_dir2_free *free)
+{
+	return (__be16 *)((char *)free + xfs_dir2_free_hdr_size());
+}
+
+/*
+ * Convert data space db to the corresponding free db.
+ */
+static xfs_dir2_db_t
+xfs_dir2_db_to_fdb(struct xfs_mount *mp, xfs_dir2_db_t db)
+{
+	return XFS_DIR2_FREE_FIRSTDB(mp) + db / xfs_dir2_free_max_bests(mp);
+}
+
+/*
+ * Convert data space db to the corresponding index in a free db.
+ */
+static int
+xfs_dir2_db_to_fdindex(struct xfs_mount *mp, xfs_dir2_db_t db)
+{
+	return db % xfs_dir2_free_max_bests(mp);
+}
+
+static int
+xfs_dir3_free_hdr_size(void)
+{
+	return sizeof(struct xfs_dir3_free_hdr);
+}
+
+static int
+xfs_dir3_free_max_bests(struct xfs_mount *mp)
+{
+	return (mp->m_dirblksize - xfs_dir3_free_hdr_size()) /
+		sizeof(xfs_dir2_data_off_t);
+}
+
+static __be16 *
+xfs_dir3_free_bests_p(struct xfs_dir2_free *free)
+{
+	return (__be16 *)((char *)free + xfs_dir3_free_hdr_size());
+}
+
+/*
+ * Convert data space db to the corresponding free db.
+ */
+static xfs_dir2_db_t
+xfs_dir3_db_to_fdb(struct xfs_mount *mp, xfs_dir2_db_t db)
+{
+	return XFS_DIR2_FREE_FIRSTDB(mp) + db / xfs_dir3_free_max_bests(mp);
+}
+
+/*
+ * Convert data space db to the corresponding index in a free db.
+ */
+static int
+xfs_dir3_db_to_fdindex(struct xfs_mount *mp, xfs_dir2_db_t db)
+{
+	return db % xfs_dir3_free_max_bests(mp);
+}
+
 static void
 xfs_dir2_free_hdr_from_disk(
 	struct xfs_dir3_icfree_hdr	*to,
@@ -722,8 +796,13 @@ const struct xfs_dir_ops xfs_dir2_ops = {
 	.node_hdr_from_disk = xfs_da2_node_hdr_from_disk,
 	.node_tree_p = xfs_da2_node_tree_p,
 
+	.free_hdr_size = xfs_dir2_free_hdr_size,
 	.free_hdr_to_disk = xfs_dir2_free_hdr_to_disk,
 	.free_hdr_from_disk = xfs_dir2_free_hdr_from_disk,
+	.free_max_bests = xfs_dir2_free_max_bests,
+	.free_bests_p = xfs_dir2_free_bests_p,
+	.db_to_fdb = xfs_dir2_db_to_fdb,
+	.db_to_fdindex = xfs_dir2_db_to_fdindex,
 };
 
 const struct xfs_dir_ops xfs_dir2_ftype_ops = {
@@ -764,8 +843,13 @@ const struct xfs_dir_ops xfs_dir2_ftype_ops = {
 	.node_hdr_from_disk = xfs_da2_node_hdr_from_disk,
 	.node_tree_p = xfs_da2_node_tree_p,
 
+	.free_hdr_size = xfs_dir2_free_hdr_size,
 	.free_hdr_to_disk = xfs_dir2_free_hdr_to_disk,
 	.free_hdr_from_disk = xfs_dir2_free_hdr_from_disk,
+	.free_max_bests = xfs_dir2_free_max_bests,
+	.free_bests_p = xfs_dir2_free_bests_p,
+	.db_to_fdb = xfs_dir2_db_to_fdb,
+	.db_to_fdindex = xfs_dir2_db_to_fdindex,
 };
 
 const struct xfs_dir_ops xfs_dir3_ops = {
@@ -806,8 +890,13 @@ const struct xfs_dir_ops xfs_dir3_ops = {
 	.node_hdr_from_disk = xfs_da3_node_hdr_from_disk,
 	.node_tree_p = xfs_da3_node_tree_p,
 
+	.free_hdr_size = xfs_dir3_free_hdr_size,
 	.free_hdr_to_disk = xfs_dir3_free_hdr_to_disk,
 	.free_hdr_from_disk = xfs_dir3_free_hdr_from_disk,
+	.free_max_bests = xfs_dir3_free_max_bests,
+	.free_bests_p = xfs_dir3_free_bests_p,
+	.db_to_fdb = xfs_dir3_db_to_fdb,
+	.db_to_fdindex = xfs_dir3_db_to_fdindex,
 };
 
 const struct xfs_dir_ops xfs_dir2_nondir_ops = {
diff --git a/fs/xfs/xfs_da_format.h b/fs/xfs/xfs_da_format.h
index 1ff7b9f42097..a19d3f8f639c 100644
--- a/fs/xfs/xfs_da_format.h
+++ b/fs/xfs/xfs_da_format.h
@@ -704,45 +704,6 @@ struct xfs_dir3_icfree_hdr {
 
 };
 
-static inline int
-xfs_dir3_free_hdr_size(struct xfs_mount *mp)
-{
-	if (xfs_sb_version_hascrc(&mp->m_sb))
-		return sizeof(struct xfs_dir3_free_hdr);
-	return sizeof(struct xfs_dir2_free_hdr);
-}
-
-static inline int
-xfs_dir3_free_max_bests(struct xfs_mount *mp)
-{
-	return (mp->m_dirblksize - xfs_dir3_free_hdr_size(mp)) /
-		sizeof(xfs_dir2_data_off_t);
-}
-
-static inline __be16 *
-xfs_dir3_free_bests_p(struct xfs_mount *mp, struct xfs_dir2_free *free)
-{
-	return (__be16 *)((char *)free + xfs_dir3_free_hdr_size(mp));
-}
-
-/*
- * Convert data space db to the corresponding free db.
- */
-static inline xfs_dir2_db_t
-xfs_dir2_db_to_fdb(struct xfs_mount *mp, xfs_dir2_db_t db)
-{
-	return XFS_DIR2_FREE_FIRSTDB(mp) + db / xfs_dir3_free_max_bests(mp);
-}
-
-/*
- * Convert data space db to the corresponding index in a free db.
- */
-static inline int
-xfs_dir2_db_to_fdindex(struct xfs_mount *mp, xfs_dir2_db_t db)
-{
-	return db % xfs_dir3_free_max_bests(mp);
-}
-
 /*
  * Single block format.
  *
diff --git a/fs/xfs/xfs_dir2.h b/fs/xfs/xfs_dir2.h
index 61195348f667..4264cb9199f8 100644
--- a/fs/xfs/xfs_dir2.h
+++ b/fs/xfs/xfs_dir2.h
@@ -92,10 +92,15 @@ struct xfs_dir_ops {
 	struct xfs_da_node_entry *
 		(*node_tree_p)(struct xfs_da_intnode *dap);
 
+	int	(*free_hdr_size)(void);
 	void	(*free_hdr_to_disk)(struct xfs_dir2_free *to,
 				    struct xfs_dir3_icfree_hdr *from);
 	void	(*free_hdr_from_disk)(struct xfs_dir3_icfree_hdr *to,
 				      struct xfs_dir2_free *from);
+	int	(*free_max_bests)(struct xfs_mount *mp);
+	__be16 * (*free_bests_p)(struct xfs_dir2_free *free);
+	xfs_dir2_db_t (*db_to_fdb)(struct xfs_mount *mp, xfs_dir2_db_t db);
+	int	(*db_to_fdindex)(struct xfs_mount *mp, xfs_dir2_db_t db);
 };
 
 extern const struct xfs_dir_ops *
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
index 2fb8db9fb574..a3c21b15cf7b 100644
--- a/fs/xfs/xfs_dir2_leaf.c
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -1785,7 +1785,7 @@ xfs_dir2_node_to_leaf(
 	/*
 	 * Set up the leaf bests table.
 	 */
-	memcpy(xfs_dir2_leaf_bests_p(ltp), xfs_dir3_free_bests_p(mp, free),
+	memcpy(xfs_dir2_leaf_bests_p(ltp), dp->d_ops->free_bests_p(free),
 		freehdr.nvalid * sizeof(xfs_dir2_data_off_t));
 
 	dp->d_ops->leaf_hdr_to_disk(leaf, &leafhdr);
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index eaee8c36bcc4..853798519ae9 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -240,6 +240,7 @@ xfs_dir3_free_get_buf(
 STATIC void
 xfs_dir2_free_log_bests(
 	struct xfs_trans	*tp,
+	struct xfs_inode	*dp,
 	struct xfs_buf		*bp,
 	int			first,		/* first entry to log */
 	int			last)		/* last entry to log */
@@ -248,7 +249,7 @@ xfs_dir2_free_log_bests(
 	__be16			*bests;
 
 	free = bp->b_addr;
-	bests = xfs_dir3_free_bests_p(tp->t_mountp, free);
+	bests = dp->d_ops->free_bests_p(free);
 	ASSERT(free->hdr.magic == cpu_to_be32(XFS_DIR2_FREE_MAGIC) ||
 	       free->hdr.magic == cpu_to_be32(XFS_DIR3_FREE_MAGIC));
 	xfs_trans_log_buf(tp, bp,
@@ -263,6 +264,7 @@ xfs_dir2_free_log_bests(
 static void
 xfs_dir2_free_log_header(
 	struct xfs_trans	*tp,
+	struct xfs_inode	*dp,
 	struct xfs_buf		*bp)
 {
 #ifdef DEBUG
@@ -272,7 +274,7 @@ xfs_dir2_free_log_header(
 	ASSERT(free->hdr.magic == cpu_to_be32(XFS_DIR2_FREE_MAGIC) ||
 	       free->hdr.magic == cpu_to_be32(XFS_DIR3_FREE_MAGIC));
 #endif
-	xfs_trans_log_buf(tp, bp, 0, xfs_dir3_free_hdr_size(tp->t_mountp) - 1);
+	xfs_trans_log_buf(tp, bp, 0, dp->d_ops->free_hdr_size() - 1);
 }
 
 /*
@@ -332,7 +334,7 @@ xfs_dir2_leaf_to_node(
 	 * Count active entries.
 	 */
 	from = xfs_dir2_leaf_bests_p(ltp);
-	to = xfs_dir3_free_bests_p(mp, free);
+	to = dp->d_ops->free_bests_p(free);
 	for (i = n = 0; i < be32_to_cpu(ltp->bestcount); i++, from++, to++) {
 		if ((off = be16_to_cpu(*from)) != NULLDATAOFF)
 			n++;
@@ -346,8 +348,8 @@ xfs_dir2_leaf_to_node(
 	freehdr.nvalid = be32_to_cpu(ltp->bestcount);
 
 	dp->d_ops->free_hdr_to_disk(fbp->b_addr, &freehdr);
-	xfs_dir2_free_log_bests(tp, fbp, 0, freehdr.nvalid - 1);
-	xfs_dir2_free_log_header(tp, fbp);
+	xfs_dir2_free_log_bests(tp, dp, fbp, 0, freehdr.nvalid - 1);
+	xfs_dir2_free_log_header(tp, dp, fbp);
 
 	/*
 	 * Converting the leaf to a leafnode is just a matter of changing the
@@ -468,7 +470,7 @@ xfs_dir2_free_hdr_check(
 
 	dp->d_ops->free_hdr_from_disk(&hdr, bp->b_addr);
 
-	ASSERT((hdr.firstdb % xfs_dir3_free_max_bests(dp->i_mount)) == 0);
+	ASSERT((hdr.firstdb % dp->d_ops->free_max_bests(dp->i_mount)) == 0);
 	ASSERT(hdr.firstdb <= db);
 	ASSERT(db < hdr.firstdb + hdr.nvalid);
 }
@@ -590,7 +592,7 @@ xfs_dir2_leafn_lookup_for_addname(
 			 * Convert the data block to the free block
 			 * holding its freespace information.
 			 */
-			newfdb = xfs_dir2_db_to_fdb(mp, newdb);
+			newfdb = dp->d_ops->db_to_fdb(mp, newdb);
 			/*
 			 * If it's not the one we have in hand, read it in.
 			 */
@@ -613,11 +615,11 @@ xfs_dir2_leafn_lookup_for_addname(
 			/*
 			 * Get the index for our entry.
 			 */
-			fi = xfs_dir2_db_to_fdindex(mp, curdb);
+			fi = dp->d_ops->db_to_fdindex(mp, curdb);
 			/*
 			 * If it has room, return it.
 			 */
-			bests = xfs_dir3_free_bests_p(mp, free);
+			bests = dp->d_ops->free_bests_p(free);
 			if (unlikely(bests[fi] == cpu_to_be16(NULLDATAOFF))) {
 				XFS_ERROR_REPORT("xfs_dir2_leafn_lookup_int",
 							XFS_ERRLEVEL_LOW, mp);
@@ -1080,15 +1082,14 @@ xfs_dir3_data_block_free(
 	struct xfs_inode	*dp = args->dp;
 
 	dp->d_ops->free_hdr_from_disk(&freehdr, free);
-
-	bests = xfs_dir3_free_bests_p(tp->t_mountp, free);
+	bests = dp->d_ops->free_bests_p(free);
 	if (hdr) {
 		/*
 		 * Data block is not empty, just set the free entry to the new
 		 * value.
 		 */
 		bests[findex] = cpu_to_be16(longest);
-		xfs_dir2_free_log_bests(tp, fbp, findex, findex);
+		xfs_dir2_free_log_bests(tp, dp, fbp, findex, findex);
 		return 0;
 	}
 
@@ -1116,7 +1117,7 @@ xfs_dir3_data_block_free(
 	}
 
 	dp->d_ops->free_hdr_to_disk(free, &freehdr);
-	xfs_dir2_free_log_header(tp, fbp);
+	xfs_dir2_free_log_header(tp, dp, fbp);
 
 	/*
 	 * If there are no useful entries left in the block, get rid of the
@@ -1140,7 +1141,7 @@ xfs_dir3_data_block_free(
 
 	/* Log the free entry that changed, unless we got rid of it.  */
 	if (logfree)
-		xfs_dir2_free_log_bests(tp, fbp, findex, findex);
+		xfs_dir2_free_log_bests(tp, dp, fbp, findex, findex);
 	return 0;
 }
 
@@ -1243,7 +1244,7 @@ xfs_dir2_leafn_remove(
 		 * Convert the data block number to a free block,
 		 * read in the free block.
 		 */
-		fdb = xfs_dir2_db_to_fdb(mp, db);
+		fdb = dp->d_ops->db_to_fdb(mp, db);
 		error = xfs_dir2_free_read(tp, dp, xfs_dir2_db_to_da(mp, fdb),
 					   &fbp);
 		if (error)
@@ -1253,14 +1254,14 @@ xfs_dir2_leafn_remove(
 	{
 		struct xfs_dir3_icfree_hdr freehdr;
 		dp->d_ops->free_hdr_from_disk(&freehdr, free);
-		ASSERT(freehdr.firstdb == xfs_dir3_free_max_bests(mp) *
+		ASSERT(freehdr.firstdb == dp->d_ops->free_max_bests(mp) *
 					  (fdb - XFS_DIR2_FREE_FIRSTDB(mp)));
 	}
 #endif
 		/*
 		 * Calculate which entry we need to fix.
 		 */
-		findex = xfs_dir2_db_to_fdindex(mp, db);
+		findex = dp->d_ops->db_to_fdindex(mp, db);
 		longest = be16_to_cpu(bf[0].length);
 		/*
 		 * If the data block is now empty we can get rid of it
@@ -1688,7 +1689,7 @@ xfs_dir2_node_addname_int(
 		ifbno = fblk->blkno;
 		free = fbp->b_addr;
 		findex = fblk->index;
-		bests = xfs_dir3_free_bests_p(mp, free);
+		bests = dp->d_ops->free_bests_p(free);
 		dp->d_ops->free_hdr_from_disk(&freehdr, free);
 
 		/*
@@ -1781,7 +1782,7 @@ xfs_dir2_node_addname_int(
 		 * and the freehdr are actually initialised if they are placed
 		 * there, so we have to do it here to avoid warnings. Blech.
 		 */
-		bests = xfs_dir3_free_bests_p(mp, free);
+		bests = dp->d_ops->free_bests_p(free);
 		dp->d_ops->free_hdr_from_disk(&freehdr, free);
 		if (be16_to_cpu(bests[findex]) != NULLDATAOFF &&
 		    be16_to_cpu(bests[findex]) >= length)
@@ -1833,7 +1834,7 @@ xfs_dir2_node_addname_int(
 		 * Get the freespace block corresponding to the data block
 		 * that was just allocated.
 		 */
-		fbno = xfs_dir2_db_to_fdb(mp, dbno);
+		fbno = dp->d_ops->db_to_fdb(mp, dbno);
 		error = xfs_dir2_free_try_read(tp, dp,
 					       xfs_dir2_db_to_da(mp, fbno),
 					       &fbp);
@@ -1850,12 +1851,12 @@ xfs_dir2_node_addname_int(
 			if (error)
 				return error;
 
-			if (unlikely(xfs_dir2_db_to_fdb(mp, dbno) != fbno)) {
+			if (unlikely(dp->d_ops->db_to_fdb(mp, dbno) != fbno)) {
 				xfs_alert(mp,
 			"%s: dir ino %llu needed freesp block %lld for\n"
 			"  data block %lld, got %lld ifbno %llu lastfbno %d",
 					__func__, (unsigned long long)dp->i_ino,
-					(long long)xfs_dir2_db_to_fdb(mp, dbno),
+					(long long)dp->d_ops->db_to_fdb(mp, dbno),
 					(long long)dbno, (long long)fbno,
 					(unsigned long long)ifbno, lastfbno);
 				if (fblk) {
@@ -1880,30 +1881,30 @@ xfs_dir2_node_addname_int(
 			if (error)
 				return error;
 			free = fbp->b_addr;
-			bests = xfs_dir3_free_bests_p(mp, free);
+			bests = dp->d_ops->free_bests_p(free);
 			dp->d_ops->free_hdr_from_disk(&freehdr, free);
 
 			/*
 			 * Remember the first slot as our empty slot.
 			 */
 			freehdr.firstdb = (fbno - XFS_DIR2_FREE_FIRSTDB(mp)) *
-					xfs_dir3_free_max_bests(mp);
+					dp->d_ops->free_max_bests(mp);
 		} else {
 			free = fbp->b_addr;
-			bests = xfs_dir3_free_bests_p(mp, free);
+			bests = dp->d_ops->free_bests_p(free);
 			dp->d_ops->free_hdr_from_disk(&freehdr, free);
 		}
 
 		/*
 		 * Set the freespace block index from the data block number.
 		 */
-		findex = xfs_dir2_db_to_fdindex(mp, dbno);
+		findex = dp->d_ops->db_to_fdindex(mp, dbno);
 		/*
 		 * If it's after the end of the current entries in the
 		 * freespace block, extend that table.
 		 */
 		if (findex >= freehdr.nvalid) {
-			ASSERT(findex < xfs_dir3_free_max_bests(mp));
+			ASSERT(findex < dp->d_ops->free_max_bests(mp));
 			freehdr.nvalid = findex + 1;
 			/*
 			 * Tag new entry so nused will go up.
@@ -1917,7 +1918,7 @@ xfs_dir2_node_addname_int(
 		if (bests[findex] == cpu_to_be16(NULLDATAOFF)) {
 			freehdr.nused++;
 			dp->d_ops->free_hdr_to_disk(fbp->b_addr, &freehdr);
-			xfs_dir2_free_log_header(tp, fbp);
+			xfs_dir2_free_log_header(tp, dp, fbp);
 		}
 		/*
 		 * Update the real value in the table.
@@ -1987,7 +1988,7 @@ xfs_dir2_node_addname_int(
 	/*
 	 * If the freespace entry is now wrong, update it.
 	 */
-	bests = xfs_dir3_free_bests_p(mp, free); /* gcc is so stupid */
+	bests = dp->d_ops->free_bests_p(free); /* gcc is so stupid */
 	if (be16_to_cpu(bests[findex]) != be16_to_cpu(bf[0].length)) {
 		bests[findex] = bf[0].length;
 		logfree = 1;
@@ -1996,7 +1997,7 @@ xfs_dir2_node_addname_int(
 	 * Log the freespace entry if needed.
 	 */
 	if (logfree)
-		xfs_dir2_free_log_bests(tp, fbp, findex, findex);
+		xfs_dir2_free_log_bests(tp, dp, fbp, findex, findex);
 	/*
 	 * Return the data block and offset in args, then drop the data block.
 	 */
-- 
cgit 


From 1c9a5b2e3045b91a10335adcc73267c304cb5dc0 Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Wed, 30 Oct 2013 09:15:02 +1100
Subject: xfs: convert directory vector functions to constants

Many of the vectorised function calls now take no parameters and
return a constant value. There is no reason for these to be vectored
functions, so convert them to constants

Binary sizes:

   text    data     bss     dec     hex filename
 794490   96802    1096  892388   d9de4 fs/xfs/xfs.o.orig
 792986   96802    1096  890884   d9804 fs/xfs/xfs.o.p1
 792350   96802    1096  890248   d9588 fs/xfs/xfs.o.p2
 789293   96802    1096  887191   d8997 fs/xfs/xfs.o.p3
 789005   96802    1096  886903   d8997 fs/xfs/xfs.o.p4
 789061   96802    1096  886959   d88af fs/xfs/xfs.o.p5
 789733   96802    1096  887631   d8b4f fs/xfs/xfs.o.p6
 791421   96802    1096  889319   d91e7 fs/xfs/xfs.o.p7
 791701   96802    1096  889599   d92ff fs/xfs/xfs.o.p8
 791205   96802    1096  889103   d91cf fs/xfs/xfs.o.p9

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_da_btree.c     |  14 ++-
 fs/xfs/xfs_da_format.c    | 220 +++++++++++++++++-----------------------------
 fs/xfs/xfs_dir2.c         |   2 +-
 fs/xfs/xfs_dir2.h         |  14 +--
 fs/xfs/xfs_dir2_block.c   |   4 +-
 fs/xfs/xfs_dir2_data.c    |   8 +-
 fs/xfs/xfs_dir2_leaf.c    |   6 +-
 fs/xfs/xfs_dir2_node.c    |   8 +-
 fs/xfs/xfs_dir2_readdir.c |   6 +-
 fs/xfs/xfs_dir2_sf.c      |   6 +-
 10 files changed, 112 insertions(+), 176 deletions(-)

diff --git a/fs/xfs/xfs_da_btree.c b/fs/xfs/xfs_da_btree.c
index a51762dae543..796272a2e129 100644
--- a/fs/xfs/xfs_da_btree.c
+++ b/fs/xfs/xfs_da_btree.c
@@ -333,8 +333,7 @@ xfs_da3_node_create(
 
 	dp->d_ops->node_hdr_to_disk(node, &ichdr);
 	xfs_trans_log_buf(tp, bp,
-		XFS_DA_LOGRANGE(node, &node->hdr,
-				dp->d_ops->node_hdr_size()));
+		XFS_DA_LOGRANGE(node, &node->hdr, dp->d_ops->node_hdr_size));
 
 	*bpp = bp;
 	return(0);
@@ -838,13 +837,12 @@ xfs_da3_node_rebalance(
 	 */
 	dp->d_ops->node_hdr_to_disk(node1, &nodehdr1);
 	xfs_trans_log_buf(tp, blk1->bp,
-		XFS_DA_LOGRANGE(node1, &node1->hdr,
-				dp->d_ops->node_hdr_size()));
+		XFS_DA_LOGRANGE(node1, &node1->hdr, dp->d_ops->node_hdr_size));
 
 	dp->d_ops->node_hdr_to_disk(node2, &nodehdr2);
 	xfs_trans_log_buf(tp, blk2->bp,
 		XFS_DA_LOGRANGE(node2, &node2->hdr,
-				dp->d_ops->node_hdr_size() +
+				dp->d_ops->node_hdr_size +
 				(sizeof(btree2[0]) * nodehdr2.count)));
 
 	/*
@@ -915,7 +913,7 @@ xfs_da3_node_add(
 	nodehdr.count += 1;
 	dp->d_ops->node_hdr_to_disk(node, &nodehdr);
 	xfs_trans_log_buf(state->args->trans, oldblk->bp,
-		XFS_DA_LOGRANGE(node, &node->hdr, dp->d_ops->node_hdr_size()));
+		XFS_DA_LOGRANGE(node, &node->hdr, dp->d_ops->node_hdr_size));
 
 	/*
 	 * Copy the last hash value from the oldblk to propagate upwards.
@@ -1350,7 +1348,7 @@ xfs_da3_node_remove(
 	nodehdr.count -= 1;
 	dp->d_ops->node_hdr_to_disk(node, &nodehdr);
 	xfs_trans_log_buf(state->args->trans, drop_blk->bp,
-	    XFS_DA_LOGRANGE(node, &node->hdr, dp->d_ops->node_hdr_size()));
+	    XFS_DA_LOGRANGE(node, &node->hdr, dp->d_ops->node_hdr_size));
 
 	/*
 	 * Copy the last hash value from the block to propagate upwards.
@@ -1423,7 +1421,7 @@ xfs_da3_node_unbalance(
 	dp->d_ops->node_hdr_to_disk(save_node, &save_hdr);
 	xfs_trans_log_buf(tp, save_blk->bp,
 		XFS_DA_LOGRANGE(save_node, &save_node->hdr,
-				dp->d_ops->node_hdr_size()));
+				dp->d_ops->node_hdr_size));
 
 	/*
 	 * Save the last hashval in the remaining block for upward propagation.
diff --git a/fs/xfs/xfs_da_format.c b/fs/xfs/xfs_da_format.c
index 01e6f9a9b804..40f18d3b7b9b 100644
--- a/fs/xfs/xfs_da_format.c
+++ b/fs/xfs/xfs_da_format.c
@@ -209,31 +209,41 @@ xfs_dir3_sfe_put_ino(
 /*
  * Directory data block operations
  */
-static int
-__xfs_dir3_data_entsize(
-	bool	ftype,
-	int	n)
-{
-	int	size = offsetof(struct xfs_dir2_data_entry, name[0]);
 
-	size += n;
-	size += sizeof(xfs_dir2_data_off_t);
-	if (ftype)
-		size += sizeof(__uint8_t);
-	return roundup(size, XFS_DIR2_DATA_ALIGN);
-}
+/*
+ * For special situations, the dirent size ends up fixed because we always know
+ * what the size of the entry is. That's true for the "." and "..", and
+ * therefore we know that they are a fixed size and hence their offsets are
+ * constant, as is the first entry.
+ *
+ * Hence, this calculation is written as a macro to be able to be calculated at
+ * compile time and so certain offsets can be calculated directly in the
+ * structure initaliser via the macro. There are two macros - one for dirents
+ * with ftype and without so there are no unresolvable conditionals in the
+ * calculations. We also use round_up() as XFS_DIR2_DATA_ALIGN is always a power
+ * of 2 and the compiler doesn't reject it (unlike roundup()).
+ */
+#define XFS_DIR2_DATA_ENTSIZE(n)					\
+	round_up((offsetof(struct xfs_dir2_data_entry, name[0]) + (n) +	\
+		 sizeof(xfs_dir2_data_off_t)), XFS_DIR2_DATA_ALIGN)
+
+#define XFS_DIR3_DATA_ENTSIZE(n)					\
+	round_up((offsetof(struct xfs_dir2_data_entry, name[0]) + (n) +	\
+		 sizeof(xfs_dir2_data_off_t) + sizeof(__uint8_t)),	\
+		XFS_DIR2_DATA_ALIGN)
 
 static int
 xfs_dir2_data_entsize(
 	int			n)
 {
-	return __xfs_dir3_data_entsize(false, n);
+	return XFS_DIR2_DATA_ENTSIZE(n);
 }
+
 static int
 xfs_dir3_data_entsize(
 	int			n)
 {
-	return __xfs_dir3_data_entsize(true, n);
+	return XFS_DIR3_DATA_ENTSIZE(n);
 }
 
 static __uint8_t
@@ -293,45 +303,6 @@ xfs_dir3_data_entry_tag_p(
 		xfs_dir3_data_entsize(dep->namelen) - sizeof(__be16));
 }
 
-/*
- * Offsets of . and .. in data space (always block 0)
- */
-static xfs_dir2_data_aoff_t
-xfs_dir2_data_dot_offset(void)
-{
-	return sizeof(struct xfs_dir2_data_hdr);
-}
-
-static xfs_dir2_data_aoff_t
-xfs_dir2_data_dotdot_offset(void)
-{
-	return xfs_dir2_data_dot_offset() + xfs_dir2_data_entsize(1);
-}
-
-static xfs_dir2_data_aoff_t
-xfs_dir2_data_first_offset(void)
-{
-	return xfs_dir2_data_dotdot_offset() + xfs_dir2_data_entsize(2);
-}
-
-static xfs_dir2_data_aoff_t
-xfs_dir3_data_dot_offset(void)
-{
-	return sizeof(struct xfs_dir3_data_hdr);
-}
-
-static xfs_dir2_data_aoff_t
-xfs_dir3_data_dotdot_offset(void)
-{
-	return xfs_dir3_data_dot_offset() + xfs_dir3_data_entsize(1);
-}
-
-static xfs_dir2_data_aoff_t
-xfs_dir3_data_first_offset(void)
-{
-	return xfs_dir3_data_dotdot_offset() + xfs_dir3_data_entsize(2);
-}
-
 /*
  * location of . and .. in data space (always block 0)
  */
@@ -340,7 +311,7 @@ xfs_dir2_data_dot_entry_p(
 	struct xfs_dir2_data_hdr *hdr)
 {
 	return (struct xfs_dir2_data_entry *)
-		((char *)hdr + xfs_dir2_data_dot_offset());
+		((char *)hdr + sizeof(struct xfs_dir2_data_hdr));
 }
 
 static struct xfs_dir2_data_entry *
@@ -348,7 +319,8 @@ xfs_dir2_data_dotdot_entry_p(
 	struct xfs_dir2_data_hdr *hdr)
 {
 	return (struct xfs_dir2_data_entry *)
-		((char *)hdr + xfs_dir2_data_dotdot_offset());
+		((char *)hdr + sizeof(struct xfs_dir2_data_hdr) +
+				XFS_DIR2_DATA_ENTSIZE(1));
 }
 
 static struct xfs_dir2_data_entry *
@@ -356,7 +328,9 @@ xfs_dir2_data_first_entry_p(
 	struct xfs_dir2_data_hdr *hdr)
 {
 	return (struct xfs_dir2_data_entry *)
-		((char *)hdr + xfs_dir2_data_first_offset());
+		((char *)hdr + sizeof(struct xfs_dir2_data_hdr) +
+				XFS_DIR2_DATA_ENTSIZE(1) +
+				XFS_DIR2_DATA_ENTSIZE(2));
 }
 
 static struct xfs_dir2_data_entry *
@@ -364,7 +338,7 @@ xfs_dir3_data_dot_entry_p(
 	struct xfs_dir2_data_hdr *hdr)
 {
 	return (struct xfs_dir2_data_entry *)
-		((char *)hdr + xfs_dir3_data_dot_offset());
+		((char *)hdr + sizeof(struct xfs_dir3_data_hdr));
 }
 
 static struct xfs_dir2_data_entry *
@@ -372,7 +346,8 @@ xfs_dir3_data_dotdot_entry_p(
 	struct xfs_dir2_data_hdr *hdr)
 {
 	return (struct xfs_dir2_data_entry *)
-		((char *)hdr + xfs_dir3_data_dotdot_offset());
+		((char *)hdr + sizeof(struct xfs_dir3_data_hdr) +
+				XFS_DIR3_DATA_ENTSIZE(1));
 }
 
 static struct xfs_dir2_data_entry *
@@ -380,7 +355,9 @@ xfs_dir3_data_first_entry_p(
 	struct xfs_dir2_data_hdr *hdr)
 {
 	return (struct xfs_dir2_data_entry *)
-		((char *)hdr + xfs_dir3_data_first_offset());
+		((char *)hdr + sizeof(struct xfs_dir3_data_hdr) +
+				XFS_DIR3_DATA_ENTSIZE(1) +
+				XFS_DIR3_DATA_ENTSIZE(2));
 }
 
 static struct xfs_dir2_data_free *
@@ -395,60 +372,42 @@ xfs_dir3_data_bestfree_p(struct xfs_dir2_data_hdr *hdr)
 	return ((struct xfs_dir3_data_hdr *)hdr)->best_free;
 }
 
-static size_t
-xfs_dir2_data_entry_offset(void)
-{
-	return sizeof(struct xfs_dir2_data_hdr);
-}
-
 static struct xfs_dir2_data_entry *
 xfs_dir2_data_entry_p(struct xfs_dir2_data_hdr *hdr)
 {
 	return (struct xfs_dir2_data_entry *)
-		((char *)hdr + xfs_dir2_data_entry_offset());
+		((char *)hdr + sizeof(struct xfs_dir2_data_hdr));
 }
 
 static struct xfs_dir2_data_unused *
 xfs_dir2_data_unused_p(struct xfs_dir2_data_hdr *hdr)
 {
 	return (struct xfs_dir2_data_unused *)
-		((char *)hdr + xfs_dir2_data_entry_offset());
-}
-
-static size_t
-xfs_dir3_data_entry_offset(void)
-{
-	return sizeof(struct xfs_dir3_data_hdr);
+		((char *)hdr + sizeof(struct xfs_dir2_data_hdr));
 }
 
 static struct xfs_dir2_data_entry *
 xfs_dir3_data_entry_p(struct xfs_dir2_data_hdr *hdr)
 {
 	return (struct xfs_dir2_data_entry *)
-		((char *)hdr + xfs_dir3_data_entry_offset());
+		((char *)hdr + sizeof(struct xfs_dir3_data_hdr));
 }
 
 static struct xfs_dir2_data_unused *
 xfs_dir3_data_unused_p(struct xfs_dir2_data_hdr *hdr)
 {
 	return (struct xfs_dir2_data_unused *)
-		((char *)hdr + xfs_dir3_data_entry_offset());
+		((char *)hdr + sizeof(struct xfs_dir3_data_hdr));
 }
 
 
 /*
  * Directory Leaf block operations
  */
-static int
-xfs_dir2_leaf_hdr_size(void)
-{
-	return sizeof(struct xfs_dir2_leaf_hdr);
-}
-
 static int
 xfs_dir2_max_leaf_ents(struct xfs_mount *mp)
 {
-	return (mp->m_dirblksize - xfs_dir2_leaf_hdr_size()) /
+	return (mp->m_dirblksize - sizeof(struct xfs_dir2_leaf_hdr)) /
 		(uint)sizeof(struct xfs_dir2_leaf_entry);
 }
 
@@ -458,16 +417,10 @@ xfs_dir2_leaf_ents_p(struct xfs_dir2_leaf *lp)
 	return lp->__ents;
 }
 
-static int
-xfs_dir3_leaf_hdr_size(void)
-{
-	return sizeof(struct xfs_dir3_leaf_hdr);
-}
-
 static int
 xfs_dir3_max_leaf_ents(struct xfs_mount *mp)
 {
-	return (mp->m_dirblksize - xfs_dir3_leaf_hdr_size()) /
+	return (mp->m_dirblksize - sizeof(struct xfs_dir3_leaf_hdr)) /
 		(uint)sizeof(struct xfs_dir2_leaf_entry);
 }
 
@@ -545,25 +498,13 @@ xfs_dir3_leaf_hdr_to_disk(
 /*
  * Directory/Attribute Node block operations
  */
-static inline int
-xfs_da2_node_hdr_size(void)
-{
-	return sizeof(struct xfs_da_node_hdr);
-}
-
 static struct xfs_da_node_entry *
 xfs_da2_node_tree_p(struct xfs_da_intnode *dap)
 {
 	return dap->__btree;
 }
 
-static inline int
-xfs_da3_node_hdr_size(void)
-{
-	return sizeof(struct xfs_da3_node_hdr);
-}
-
-static inline struct xfs_da_node_entry *
+static struct xfs_da_node_entry *
 xfs_da3_node_tree_p(struct xfs_da_intnode *dap)
 {
 	return ((struct xfs_da3_intnode *)dap)->__btree;
@@ -629,23 +570,17 @@ xfs_da3_node_hdr_to_disk(
 /*
  * Directory free space block operations
  */
-static int
-xfs_dir2_free_hdr_size(void)
-{
-	return sizeof(struct xfs_dir2_free_hdr);
-}
-
 static int
 xfs_dir2_free_max_bests(struct xfs_mount *mp)
 {
-	return (mp->m_dirblksize - xfs_dir2_free_hdr_size()) /
+	return (mp->m_dirblksize - sizeof(struct xfs_dir2_free_hdr)) /
 		sizeof(xfs_dir2_data_off_t);
 }
 
 static __be16 *
 xfs_dir2_free_bests_p(struct xfs_dir2_free *free)
 {
-	return (__be16 *)((char *)free + xfs_dir2_free_hdr_size());
+	return (__be16 *)((char *)free + sizeof(struct xfs_dir2_free_hdr));
 }
 
 /*
@@ -666,23 +601,17 @@ xfs_dir2_db_to_fdindex(struct xfs_mount *mp, xfs_dir2_db_t db)
 	return db % xfs_dir2_free_max_bests(mp);
 }
 
-static int
-xfs_dir3_free_hdr_size(void)
-{
-	return sizeof(struct xfs_dir3_free_hdr);
-}
-
 static int
 xfs_dir3_free_max_bests(struct xfs_mount *mp)
 {
-	return (mp->m_dirblksize - xfs_dir3_free_hdr_size()) /
+	return (mp->m_dirblksize - sizeof(struct xfs_dir3_free_hdr)) /
 		sizeof(xfs_dir2_data_off_t);
 }
 
 static __be16 *
 xfs_dir3_free_bests_p(struct xfs_dir2_free *free)
 {
-	return (__be16 *)((char *)free + xfs_dir3_free_hdr_size());
+	return (__be16 *)((char *)free + sizeof(struct xfs_dir3_free_hdr));
 }
 
 /*
@@ -774,10 +703,13 @@ const struct xfs_dir_ops xfs_dir2_ops = {
 	.data_entry_tag_p = xfs_dir2_data_entry_tag_p,
 	.data_bestfree_p = xfs_dir2_data_bestfree_p,
 
-	.data_dot_offset = xfs_dir2_data_dot_offset,
-	.data_dotdot_offset = xfs_dir2_data_dotdot_offset,
-	.data_first_offset = xfs_dir2_data_first_offset,
-	.data_entry_offset = xfs_dir2_data_entry_offset,
+	.data_dot_offset = sizeof(struct xfs_dir2_data_hdr),
+	.data_dotdot_offset = sizeof(struct xfs_dir2_data_hdr) +
+				XFS_DIR2_DATA_ENTSIZE(1),
+	.data_first_offset =  sizeof(struct xfs_dir2_data_hdr) +
+				XFS_DIR2_DATA_ENTSIZE(1) +
+				XFS_DIR2_DATA_ENTSIZE(2),
+	.data_entry_offset = sizeof(struct xfs_dir2_data_hdr),
 
 	.data_dot_entry_p = xfs_dir2_data_dot_entry_p,
 	.data_dotdot_entry_p = xfs_dir2_data_dotdot_entry_p,
@@ -785,18 +717,18 @@ const struct xfs_dir_ops xfs_dir2_ops = {
 	.data_entry_p = xfs_dir2_data_entry_p,
 	.data_unused_p = xfs_dir2_data_unused_p,
 
-	.leaf_hdr_size = xfs_dir2_leaf_hdr_size,
+	.leaf_hdr_size = sizeof(struct xfs_dir2_leaf_hdr),
 	.leaf_hdr_to_disk = xfs_dir2_leaf_hdr_to_disk,
 	.leaf_hdr_from_disk = xfs_dir2_leaf_hdr_from_disk,
 	.leaf_max_ents = xfs_dir2_max_leaf_ents,
 	.leaf_ents_p = xfs_dir2_leaf_ents_p,
 
-	.node_hdr_size = xfs_da2_node_hdr_size,
+	.node_hdr_size = sizeof(struct xfs_da_node_hdr),
 	.node_hdr_to_disk = xfs_da2_node_hdr_to_disk,
 	.node_hdr_from_disk = xfs_da2_node_hdr_from_disk,
 	.node_tree_p = xfs_da2_node_tree_p,
 
-	.free_hdr_size = xfs_dir2_free_hdr_size,
+	.free_hdr_size = sizeof(struct xfs_dir2_free_hdr),
 	.free_hdr_to_disk = xfs_dir2_free_hdr_to_disk,
 	.free_hdr_from_disk = xfs_dir2_free_hdr_from_disk,
 	.free_max_bests = xfs_dir2_free_max_bests,
@@ -821,10 +753,13 @@ const struct xfs_dir_ops xfs_dir2_ftype_ops = {
 	.data_entry_tag_p = xfs_dir3_data_entry_tag_p,
 	.data_bestfree_p = xfs_dir2_data_bestfree_p,
 
-	.data_dot_offset = xfs_dir2_data_dot_offset,
-	.data_dotdot_offset = xfs_dir2_data_dotdot_offset,
-	.data_first_offset = xfs_dir2_data_first_offset,
-	.data_entry_offset = xfs_dir2_data_entry_offset,
+	.data_dot_offset = sizeof(struct xfs_dir2_data_hdr),
+	.data_dotdot_offset = sizeof(struct xfs_dir2_data_hdr) +
+				XFS_DIR3_DATA_ENTSIZE(1),
+	.data_first_offset =  sizeof(struct xfs_dir2_data_hdr) +
+				XFS_DIR3_DATA_ENTSIZE(1) +
+				XFS_DIR3_DATA_ENTSIZE(2),
+	.data_entry_offset = sizeof(struct xfs_dir2_data_hdr),
 
 	.data_dot_entry_p = xfs_dir2_data_dot_entry_p,
 	.data_dotdot_entry_p = xfs_dir2_data_dotdot_entry_p,
@@ -832,18 +767,18 @@ const struct xfs_dir_ops xfs_dir2_ftype_ops = {
 	.data_entry_p = xfs_dir2_data_entry_p,
 	.data_unused_p = xfs_dir2_data_unused_p,
 
-	.leaf_hdr_size = xfs_dir2_leaf_hdr_size,
+	.leaf_hdr_size = sizeof(struct xfs_dir2_leaf_hdr),
 	.leaf_hdr_to_disk = xfs_dir2_leaf_hdr_to_disk,
 	.leaf_hdr_from_disk = xfs_dir2_leaf_hdr_from_disk,
 	.leaf_max_ents = xfs_dir2_max_leaf_ents,
 	.leaf_ents_p = xfs_dir2_leaf_ents_p,
 
-	.node_hdr_size = xfs_da2_node_hdr_size,
+	.node_hdr_size = sizeof(struct xfs_da_node_hdr),
 	.node_hdr_to_disk = xfs_da2_node_hdr_to_disk,
 	.node_hdr_from_disk = xfs_da2_node_hdr_from_disk,
 	.node_tree_p = xfs_da2_node_tree_p,
 
-	.free_hdr_size = xfs_dir2_free_hdr_size,
+	.free_hdr_size = sizeof(struct xfs_dir2_free_hdr),
 	.free_hdr_to_disk = xfs_dir2_free_hdr_to_disk,
 	.free_hdr_from_disk = xfs_dir2_free_hdr_from_disk,
 	.free_max_bests = xfs_dir2_free_max_bests,
@@ -868,10 +803,13 @@ const struct xfs_dir_ops xfs_dir3_ops = {
 	.data_entry_tag_p = xfs_dir3_data_entry_tag_p,
 	.data_bestfree_p = xfs_dir3_data_bestfree_p,
 
-	.data_dot_offset = xfs_dir3_data_dot_offset,
-	.data_dotdot_offset = xfs_dir3_data_dotdot_offset,
-	.data_first_offset = xfs_dir3_data_first_offset,
-	.data_entry_offset = xfs_dir3_data_entry_offset,
+	.data_dot_offset = sizeof(struct xfs_dir3_data_hdr),
+	.data_dotdot_offset = sizeof(struct xfs_dir3_data_hdr) +
+				XFS_DIR3_DATA_ENTSIZE(1),
+	.data_first_offset =  sizeof(struct xfs_dir3_data_hdr) +
+				XFS_DIR3_DATA_ENTSIZE(1) +
+				XFS_DIR3_DATA_ENTSIZE(2),
+	.data_entry_offset = sizeof(struct xfs_dir3_data_hdr),
 
 	.data_dot_entry_p = xfs_dir3_data_dot_entry_p,
 	.data_dotdot_entry_p = xfs_dir3_data_dotdot_entry_p,
@@ -879,18 +817,18 @@ const struct xfs_dir_ops xfs_dir3_ops = {
 	.data_entry_p = xfs_dir3_data_entry_p,
 	.data_unused_p = xfs_dir3_data_unused_p,
 
-	.leaf_hdr_size = xfs_dir3_leaf_hdr_size,
+	.leaf_hdr_size = sizeof(struct xfs_dir3_leaf_hdr),
 	.leaf_hdr_to_disk = xfs_dir3_leaf_hdr_to_disk,
 	.leaf_hdr_from_disk = xfs_dir3_leaf_hdr_from_disk,
 	.leaf_max_ents = xfs_dir3_max_leaf_ents,
 	.leaf_ents_p = xfs_dir3_leaf_ents_p,
 
-	.node_hdr_size = xfs_da3_node_hdr_size,
+	.node_hdr_size = sizeof(struct xfs_da3_node_hdr),
 	.node_hdr_to_disk = xfs_da3_node_hdr_to_disk,
 	.node_hdr_from_disk = xfs_da3_node_hdr_from_disk,
 	.node_tree_p = xfs_da3_node_tree_p,
 
-	.free_hdr_size = xfs_dir3_free_hdr_size,
+	.free_hdr_size = sizeof(struct xfs_dir3_free_hdr),
 	.free_hdr_to_disk = xfs_dir3_free_hdr_to_disk,
 	.free_hdr_from_disk = xfs_dir3_free_hdr_from_disk,
 	.free_max_bests = xfs_dir3_free_max_bests,
@@ -900,14 +838,14 @@ const struct xfs_dir_ops xfs_dir3_ops = {
 };
 
 const struct xfs_dir_ops xfs_dir2_nondir_ops = {
-	.node_hdr_size = xfs_da2_node_hdr_size,
+	.node_hdr_size = sizeof(struct xfs_da_node_hdr),
 	.node_hdr_to_disk = xfs_da2_node_hdr_to_disk,
 	.node_hdr_from_disk = xfs_da2_node_hdr_from_disk,
 	.node_tree_p = xfs_da2_node_tree_p,
 };
 
 const struct xfs_dir_ops xfs_dir3_nondir_ops = {
-	.node_hdr_size = xfs_da3_node_hdr_size,
+	.node_hdr_size = sizeof(struct xfs_da3_node_hdr),
 	.node_hdr_to_disk = xfs_da3_node_hdr_to_disk,
 	.node_hdr_from_disk = xfs_da3_node_hdr_from_disk,
 	.node_tree_p = xfs_da3_node_tree_p,
diff --git a/fs/xfs/xfs_dir2.c b/fs/xfs/xfs_dir2.c
index 1b44e83924b7..ce16ef02997a 100644
--- a/fs/xfs/xfs_dir2.c
+++ b/fs/xfs/xfs_dir2.c
@@ -105,7 +105,7 @@ xfs_dir_mount(
 	mp->m_dirleafblk = xfs_dir2_db_to_da(mp, XFS_DIR2_LEAF_FIRSTDB(mp));
 	mp->m_dirfreeblk = xfs_dir2_db_to_da(mp, XFS_DIR2_FREE_FIRSTDB(mp));
 
-	nodehdr_size = mp->m_dir_inode_ops->node_hdr_size();
+	nodehdr_size = mp->m_dir_inode_ops->node_hdr_size;
 	mp->m_attr_node_ents = (mp->m_sb.sb_blocksize - nodehdr_size) /
 				(uint)sizeof(xfs_da_node_entry_t);
 	mp->m_dir_node_ents = (mp->m_dirblksize - nodehdr_size) /
diff --git a/fs/xfs/xfs_dir2.h b/fs/xfs/xfs_dir2.h
index 4264cb9199f8..cec70e0781ab 100644
--- a/fs/xfs/xfs_dir2.h
+++ b/fs/xfs/xfs_dir2.h
@@ -59,10 +59,10 @@ struct xfs_dir_ops {
 	struct xfs_dir2_data_free *
 		(*data_bestfree_p)(struct xfs_dir2_data_hdr *hdr);
 
-	xfs_dir2_data_aoff_t (*data_dot_offset)(void);
-	xfs_dir2_data_aoff_t (*data_dotdot_offset)(void);
-	xfs_dir2_data_aoff_t (*data_first_offset)(void);
-	size_t	(*data_entry_offset)(void);
+	xfs_dir2_data_aoff_t data_dot_offset;
+	xfs_dir2_data_aoff_t data_dotdot_offset;
+	xfs_dir2_data_aoff_t data_first_offset;
+	size_t	data_entry_offset;
 
 	struct xfs_dir2_data_entry *
 		(*data_dot_entry_p)(struct xfs_dir2_data_hdr *hdr);
@@ -75,7 +75,7 @@ struct xfs_dir_ops {
 	struct xfs_dir2_data_unused *
 		(*data_unused_p)(struct xfs_dir2_data_hdr *hdr);
 
-	int	(*leaf_hdr_size)(void);
+	int	leaf_hdr_size;
 	void	(*leaf_hdr_to_disk)(struct xfs_dir2_leaf *to,
 				    struct xfs_dir3_icleaf_hdr *from);
 	void	(*leaf_hdr_from_disk)(struct xfs_dir3_icleaf_hdr *to,
@@ -84,7 +84,7 @@ struct xfs_dir_ops {
 	struct xfs_dir2_leaf_entry *
 		(*leaf_ents_p)(struct xfs_dir2_leaf *lp);
 
-	int	(*node_hdr_size)(void);
+	int	node_hdr_size;
 	void	(*node_hdr_to_disk)(struct xfs_da_intnode *to,
 				    struct xfs_da3_icnode_hdr *from);
 	void	(*node_hdr_from_disk)(struct xfs_da3_icnode_hdr *to,
@@ -92,7 +92,7 @@ struct xfs_dir_ops {
 	struct xfs_da_node_entry *
 		(*node_tree_p)(struct xfs_da_intnode *dap);
 
-	int	(*free_hdr_size)(void);
+	int	free_hdr_size;
 	void	(*free_hdr_to_disk)(struct xfs_dir2_free *to,
 				    struct xfs_dir3_icfree_hdr *from);
 	void	(*free_hdr_from_disk)(struct xfs_dir3_icfree_hdr *to,
diff --git a/fs/xfs/xfs_dir2_block.c b/fs/xfs/xfs_dir2_block.c
index c1ff552aa7bf..90cdbf4b5f19 100644
--- a/fs/xfs/xfs_dir2_block.c
+++ b/fs/xfs/xfs_dir2_block.c
@@ -951,7 +951,7 @@ xfs_dir2_leaf_to_block(
 	while (dp->i_d.di_size > mp->m_dirblksize) {
 		int hdrsz;
 
-		hdrsz = dp->d_ops->data_entry_offset();
+		hdrsz = dp->d_ops->data_entry_offset;
 		bestsp = xfs_dir2_leaf_bests_p(ltp);
 		if (be16_to_cpu(bestsp[be32_to_cpu(ltp->bestcount) - 1]) ==
 					    mp->m_dirblksize - hdrsz) {
@@ -1185,7 +1185,7 @@ xfs_dir2_sf_to_block(
 	blp[1].hashval = cpu_to_be32(xfs_dir_hash_dotdot);
 	blp[1].address = cpu_to_be32(xfs_dir2_byte_to_dataptr(mp,
 				(char *)dep - (char *)hdr));
-	offset = dp->d_ops->data_first_offset();
+	offset = dp->d_ops->data_first_offset;
 	/*
 	 * Loop over existing entries, stuff them in.
 	 */
diff --git a/fs/xfs/xfs_dir2_data.c b/fs/xfs/xfs_dir2_data.c
index 32d657fbe6a4..18e920c86be6 100644
--- a/fs/xfs/xfs_dir2_data.c
+++ b/fs/xfs/xfs_dir2_data.c
@@ -598,7 +598,7 @@ xfs_dir3_data_init(
 		hdr->magic = cpu_to_be32(XFS_DIR2_DATA_MAGIC);
 
 	bf = dp->d_ops->data_bestfree_p(hdr);
-	bf[0].offset = cpu_to_be16(dp->d_ops->data_entry_offset());
+	bf[0].offset = cpu_to_be16(dp->d_ops->data_entry_offset);
 	for (i = 1; i < XFS_DIR2_DATA_FD_COUNT; i++) {
 		bf[i].length = 0;
 		bf[i].offset = 0;
@@ -610,7 +610,7 @@ xfs_dir3_data_init(
 	dup = dp->d_ops->data_unused_p(hdr);
 	dup->freetag = cpu_to_be16(XFS_DIR2_DATA_FREE_TAG);
 
-	t = mp->m_dirblksize - (uint)dp->d_ops->data_entry_offset();
+	t = mp->m_dirblksize - (uint)dp->d_ops->data_entry_offset;
 	bf[0].length = cpu_to_be16(t);
 	dup->length = cpu_to_be16(t);
 	*xfs_dir2_data_unused_tag_p(dup) = cpu_to_be16((char *)dup - (char *)hdr);
@@ -663,7 +663,7 @@ xfs_dir2_data_log_header(
 	       hdr->magic == cpu_to_be32(XFS_DIR3_BLOCK_MAGIC));
 #endif
 
-	xfs_trans_log_buf(tp, bp, 0, dp->d_ops->data_entry_offset() - 1);
+	xfs_trans_log_buf(tp, bp, 0, dp->d_ops->data_entry_offset - 1);
 }
 
 /*
@@ -742,7 +742,7 @@ xfs_dir2_data_make_free(
 	 * If this isn't the start of the block, then back up to
 	 * the previous entry and see if it's free.
 	 */
-	if (offset > dp->d_ops->data_entry_offset()) {
+	if (offset > dp->d_ops->data_entry_offset) {
 		__be16			*tagp;	/* tag just before us */
 
 		tagp = (__be16 *)((char *)hdr + offset) - 1;
diff --git a/fs/xfs/xfs_dir2_leaf.c b/fs/xfs/xfs_dir2_leaf.c
index a3c21b15cf7b..ae47ec6e16c4 100644
--- a/fs/xfs/xfs_dir2_leaf.c
+++ b/fs/xfs/xfs_dir2_leaf.c
@@ -1116,7 +1116,7 @@ xfs_dir3_leaf_log_header(
 	       leaf->hdr.info.magic == cpu_to_be16(XFS_DIR3_LEAFN_MAGIC));
 
 	xfs_trans_log_buf(tp, bp, (uint)((char *)&leaf->hdr - (char *)leaf),
-			  dp->d_ops->leaf_hdr_size() - 1);
+			  dp->d_ops->leaf_hdr_size - 1);
 }
 
 /*
@@ -1424,7 +1424,7 @@ xfs_dir2_leaf_removename(
 	 * If the data block is now empty then get rid of the data block.
 	 */
 	if (be16_to_cpu(bf[0].length) ==
-			mp->m_dirblksize - dp->d_ops->data_entry_offset()) {
+			mp->m_dirblksize - dp->d_ops->data_entry_offset) {
 		ASSERT(db != mp->m_dirdatablk);
 		if ((error = xfs_dir2_shrink_inode(args, db, dbp))) {
 			/*
@@ -1623,7 +1623,7 @@ xfs_dir2_leaf_trim_data(
 	ASSERT(hdr->magic == cpu_to_be32(XFS_DIR2_DATA_MAGIC) ||
 	       hdr->magic == cpu_to_be32(XFS_DIR3_DATA_MAGIC));
 	ASSERT(be16_to_cpu(bf[0].length) ==
-	       mp->m_dirblksize - dp->d_ops->data_entry_offset());
+	       mp->m_dirblksize - dp->d_ops->data_entry_offset);
 	ASSERT(db == be32_to_cpu(ltp->bestcount) - 1);
 }
 #endif
diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index 853798519ae9..f90bf0690346 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -274,7 +274,7 @@ xfs_dir2_free_log_header(
 	ASSERT(free->hdr.magic == cpu_to_be32(XFS_DIR2_FREE_MAGIC) ||
 	       free->hdr.magic == cpu_to_be32(XFS_DIR3_FREE_MAGIC));
 #endif
-	xfs_trans_log_buf(tp, bp, 0, dp->d_ops->free_hdr_size() - 1);
+	xfs_trans_log_buf(tp, bp, 0, dp->d_ops->free_hdr_size - 1);
 }
 
 /*
@@ -1268,7 +1268,7 @@ xfs_dir2_leafn_remove(
 		 * (usually).
 		 */
 		if (longest == mp->m_dirblksize -
-			       dp->d_ops->data_entry_offset()) {
+			       dp->d_ops->data_entry_offset) {
 			/*
 			 * Try to punch out the data block.
 			 */
@@ -1300,7 +1300,7 @@ xfs_dir2_leafn_remove(
 	 * Return indication of whether this leaf block is empty enough
 	 * to justify trying to join it with a neighbor.
 	 */
-	*rval = (dp->d_ops->leaf_hdr_size() +
+	*rval = (dp->d_ops->leaf_hdr_size +
 		 (uint)sizeof(ents[0]) * (leafhdr.count - leafhdr.stale)) <
 		mp->m_dir_magicpct;
 	return 0;
@@ -1409,7 +1409,7 @@ xfs_dir2_leafn_toosmall(
 	xfs_dir3_leaf_check(dp, blk->bp);
 
 	count = leafhdr.count - leafhdr.stale;
-	bytes = dp->d_ops->leaf_hdr_size() + count * sizeof(ents[0]);
+	bytes = dp->d_ops->leaf_hdr_size + count * sizeof(ents[0]);
 	if (bytes > (state->blocksize >> 1)) {
 		/*
 		 * Blk over 50%, don't try to join.
diff --git a/fs/xfs/xfs_dir2_readdir.c b/fs/xfs/xfs_dir2_readdir.c
index f45ecac821ec..c4e50c6ed584 100644
--- a/fs/xfs/xfs_dir2_readdir.c
+++ b/fs/xfs/xfs_dir2_readdir.c
@@ -119,9 +119,9 @@ xfs_dir2_sf_getdents(
 	 * mp->m_dirdatablk.
 	 */
 	dot_offset = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
-						dp->d_ops->data_dot_offset());
+						dp->d_ops->data_dot_offset);
 	dotdot_offset = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
-						dp->d_ops->data_dotdot_offset());
+						dp->d_ops->data_dotdot_offset);
 
 	/*
 	 * Put . entry unless we're starting past it.
@@ -584,7 +584,7 @@ xfs_dir2_leaf_getdents(
 			 * Skip past the header.
 			 */
 			if (byteoff == 0)
-				curoff += dp->d_ops->data_entry_offset();
+				curoff += dp->d_ops->data_entry_offset;
 			/*
 			 * Skip past entries until we reach our offset.
 			 */
diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c
index 42bbcff15cc5..aafc6e46cb58 100644
--- a/fs/xfs/xfs_dir2_sf.c
+++ b/fs/xfs/xfs_dir2_sf.c
@@ -473,7 +473,7 @@ xfs_dir2_sf_addname_hard(
 	 * to insert the new entry.
 	 * If it's going to end up at the end then oldsfep will point there.
 	 */
-	for (offset = dp->d_ops->data_first_offset(),
+	for (offset = dp->d_ops->data_first_offset,
 	      oldsfep = xfs_dir2_sf_firstentry(oldsfp),
 	      add_datasize = dp->d_ops->data_entsize(args->namelen),
 	      eof = (char *)oldsfep == &buf[old_isize];
@@ -556,7 +556,7 @@ xfs_dir2_sf_addname_pick(
 
 	sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
 	size = dp->d_ops->data_entsize(args->namelen);
-	offset = dp->d_ops->data_first_offset();
+	offset = dp->d_ops->data_first_offset;
 	sfep = xfs_dir2_sf_firstentry(sfp);
 	holefit = 0;
 	/*
@@ -629,7 +629,7 @@ xfs_dir2_sf_check(
 	mp = dp->i_mount;
 
 	sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
-	offset = dp->d_ops->data_first_offset();
+	offset = dp->d_ops->data_first_offset;
 	ino = dp->d_ops->sf_get_parent_ino(sfp);
 	i8count = ino > XFS_DIR2_MAX_SHORT_INUM;
 
-- 
cgit 


From b01ef655d8b9753c3d25e4c22e0a4e7c442fe5e1 Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 29 Oct 2013 22:11:55 +1100
Subject: xfs: make dir2 ftype offset pointers explicit

Rather than hiding the ftype field size accounting inside the dirent
padding for the ".." and first entry offset functions for v2
directory formats, add explicit functions that calculate it
correctly.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_da_format.c | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/fs/xfs/xfs_da_format.c b/fs/xfs/xfs_da_format.c
index 40f18d3b7b9b..870cac0b0981 100644
--- a/fs/xfs/xfs_da_format.c
+++ b/fs/xfs/xfs_da_format.c
@@ -333,6 +333,25 @@ xfs_dir2_data_first_entry_p(
 				XFS_DIR2_DATA_ENTSIZE(2));
 }
 
+static struct xfs_dir2_data_entry *
+xfs_dir2_ftype_data_dotdot_entry_p(
+	struct xfs_dir2_data_hdr *hdr)
+{
+	return (struct xfs_dir2_data_entry *)
+		((char *)hdr + sizeof(struct xfs_dir2_data_hdr) +
+				XFS_DIR3_DATA_ENTSIZE(1));
+}
+
+static struct xfs_dir2_data_entry *
+xfs_dir2_ftype_data_first_entry_p(
+	struct xfs_dir2_data_hdr *hdr)
+{
+	return (struct xfs_dir2_data_entry *)
+		((char *)hdr + sizeof(struct xfs_dir2_data_hdr) +
+				XFS_DIR3_DATA_ENTSIZE(1) +
+				XFS_DIR3_DATA_ENTSIZE(2));
+}
+
 static struct xfs_dir2_data_entry *
 xfs_dir3_data_dot_entry_p(
 	struct xfs_dir2_data_hdr *hdr)
@@ -762,8 +781,8 @@ const struct xfs_dir_ops xfs_dir2_ftype_ops = {
 	.data_entry_offset = sizeof(struct xfs_dir2_data_hdr),
 
 	.data_dot_entry_p = xfs_dir2_data_dot_entry_p,
-	.data_dotdot_entry_p = xfs_dir2_data_dotdot_entry_p,
-	.data_first_entry_p = xfs_dir2_data_first_entry_p,
+	.data_dotdot_entry_p = xfs_dir2_ftype_data_dotdot_entry_p,
+	.data_first_entry_p = xfs_dir2_ftype_data_first_entry_p,
 	.data_entry_p = xfs_dir2_data_entry_p,
 	.data_unused_p = xfs_dir2_data_unused_p,
 
-- 
cgit 


From a62936210525da2f46ae264e0bf9680eafac176e Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 29 Oct 2013 22:11:56 +1100
Subject: xfs: validity check the directory block leaf entry count

The directory block format verifier fails to check that the leaf
entry count is in a valid range, and so if it is corrupted then it
can lead to derefencing a pointer outside the block buffer. While we
can't exactly validate the count without first walking the directory
block, we can ensure the count lands in the valid area within the
directory block and hence avoid out-of-block references.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_dir2_data.c | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/fs/xfs/xfs_dir2_data.c b/fs/xfs/xfs_dir2_data.c
index 18e920c86be6..70acff4ee173 100644
--- a/fs/xfs/xfs_dir2_data.c
+++ b/fs/xfs/xfs_dir2_data.c
@@ -65,7 +65,6 @@ __xfs_dir3_data_check(
 	const struct xfs_dir_ops *ops;
 
 	mp = bp->b_target->bt_mount;
-	hdr = bp->b_addr;
 
 	/*
 	 * We can be passed a null dp here from a verifier, so we need to go the
@@ -73,12 +72,25 @@ __xfs_dir3_data_check(
 	 */
 	ops = xfs_dir_get_ops(mp, dp);
 
+	hdr = bp->b_addr;
+	p = (char *)ops->data_entry_p(hdr);
+
 	switch (hdr->magic) {
 	case cpu_to_be32(XFS_DIR3_BLOCK_MAGIC):
 	case cpu_to_be32(XFS_DIR2_BLOCK_MAGIC):
 		btp = xfs_dir2_block_tail_p(mp, hdr);
 		lep = xfs_dir2_block_leaf_p(btp);
 		endp = (char *)lep;
+
+		/*
+		 * The number of leaf entries is limited by the size of the
+		 * block and the amount of space used by the data entries.
+		 * We don't know how much space is used by the data entries yet,
+		 * so just ensure that the count falls somewhere inside the
+		 * block right now.
+		 */
+		XFS_WANT_CORRUPTED_RETURN(be32_to_cpu(btp->count) <
+			((char *)btp - p) / sizeof(struct xfs_dir2_leaf_entry));
 		break;
 	case cpu_to_be32(XFS_DIR3_DATA_MAGIC):
 	case cpu_to_be32(XFS_DIR2_DATA_MAGIC):
@@ -88,13 +100,12 @@ __xfs_dir3_data_check(
 		XFS_ERROR_REPORT("Bad Magic", XFS_ERRLEVEL_LOW, mp);
 		return EFSCORRUPTED;
 	}
-	bf = ops->data_bestfree_p(hdr);
-	p = (char *)ops->data_entry_p(hdr);
 
-	count = lastfree = freeseen = 0;
 	/*
 	 * Account for zero bestfree entries.
 	 */
+	bf = ops->data_bestfree_p(hdr);
+	count = lastfree = freeseen = 0;
 	if (!bf[0].length) {
 		XFS_WANT_CORRUPTED_RETURN(!bf[0].offset);
 		freeseen |= 1 << 0;
-- 
cgit 


From 632b89e82bf1c04c251924b49adc689f7b346321 Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 29 Oct 2013 22:11:58 +1100
Subject: xfs: fix static and extern sparse warnings

The kbuild test robot indicated that there were some new sparse
warnings in fs/xfs/xfs_dquot_buf.c. Actually, there were a lot more
that is wasn't warning about, so fix them all up.

Reported-by: kbuild test robot
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_alloc_btree.c  |  1 +
 fs/xfs/xfs_attr_leaf.c    |  1 +
 fs/xfs/xfs_attr_remote.c  |  1 +
 fs/xfs/xfs_bit.c          |  1 +
 fs/xfs/xfs_bmap_btree.c   |  1 +
 fs/xfs/xfs_buf_item.c     |  2 +-
 fs/xfs/xfs_da_format.c    | 11 ++++++-----
 fs/xfs/xfs_dquot_buf.c    |  3 ++-
 fs/xfs/xfs_ialloc_btree.c |  1 +
 fs/xfs/xfs_rtbitmap.c     |  1 +
 fs/xfs/xfs_sb.c           |  1 +
 fs/xfs/xfs_super.c        |  2 +-
 12 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/fs/xfs/xfs_alloc_btree.c b/fs/xfs/xfs_alloc_btree.c
index 698587f6c60a..13085429e523 100644
--- a/fs/xfs/xfs_alloc_btree.c
+++ b/fs/xfs/xfs_alloc_btree.c
@@ -17,6 +17,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_shared.h"
 #include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
diff --git a/fs/xfs/xfs_attr_leaf.c b/fs/xfs/xfs_attr_leaf.c
index fdf9992dcbbc..7b126f46a2f9 100644
--- a/fs/xfs/xfs_attr_leaf.c
+++ b/fs/xfs/xfs_attr_leaf.c
@@ -18,6 +18,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_shared.h"
 #include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
diff --git a/fs/xfs/xfs_attr_remote.c b/fs/xfs/xfs_attr_remote.c
index 2e5530467f2d..739e0a52deda 100644
--- a/fs/xfs/xfs_attr_remote.c
+++ b/fs/xfs/xfs_attr_remote.c
@@ -18,6 +18,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_shared.h"
 #include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
diff --git a/fs/xfs/xfs_bit.c b/fs/xfs/xfs_bit.c
index 16ce44a2b43e..0e8885a59646 100644
--- a/fs/xfs/xfs_bit.c
+++ b/fs/xfs/xfs_bit.c
@@ -17,6 +17,7 @@
  */
 #include "xfs.h"
 #include "xfs_log_format.h"
+#include "xfs_bit.h"
 
 /*
  * XFS bit manipulation routines, used in non-realtime code.
diff --git a/fs/xfs/xfs_bmap_btree.c b/fs/xfs/xfs_bmap_btree.c
index 2fb4a2202e17..706bc3f777cb 100644
--- a/fs/xfs/xfs_bmap_btree.c
+++ b/fs/xfs/xfs_bmap_btree.c
@@ -17,6 +17,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_shared.h"
 #include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c
index b6d20c55282b..a64f67ba25d3 100644
--- a/fs/xfs/xfs_buf_item.c
+++ b/fs/xfs/xfs_buf_item.c
@@ -809,7 +809,7 @@ xfs_buf_item_init(
  * Mark bytes first through last inclusive as dirty in the buf
  * item's bitmap.
  */
-void
+static void
 xfs_buf_item_log_segment(
 	struct xfs_buf_log_item	*bip,
 	uint			first,
diff --git a/fs/xfs/xfs_da_format.c b/fs/xfs/xfs_da_format.c
index 870cac0b0981..e6c83e1fbc8a 100644
--- a/fs/xfs/xfs_da_format.c
+++ b/fs/xfs/xfs_da_format.c
@@ -18,6 +18,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_shared.h"
 #include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
@@ -706,7 +707,7 @@ xfs_dir3_free_hdr_to_disk(
 	hdr3->nused = cpu_to_be32(from->nused);
 }
 
-const struct xfs_dir_ops xfs_dir2_ops = {
+static const struct xfs_dir_ops xfs_dir2_ops = {
 	.sf_entsize = xfs_dir2_sf_entsize,
 	.sf_nextentry = xfs_dir2_sf_nextentry,
 	.sf_get_ftype = xfs_dir2_sfe_get_ftype,
@@ -756,7 +757,7 @@ const struct xfs_dir_ops xfs_dir2_ops = {
 	.db_to_fdindex = xfs_dir2_db_to_fdindex,
 };
 
-const struct xfs_dir_ops xfs_dir2_ftype_ops = {
+static const struct xfs_dir_ops xfs_dir2_ftype_ops = {
 	.sf_entsize = xfs_dir3_sf_entsize,
 	.sf_nextentry = xfs_dir3_sf_nextentry,
 	.sf_get_ftype = xfs_dir3_sfe_get_ftype,
@@ -806,7 +807,7 @@ const struct xfs_dir_ops xfs_dir2_ftype_ops = {
 	.db_to_fdindex = xfs_dir2_db_to_fdindex,
 };
 
-const struct xfs_dir_ops xfs_dir3_ops = {
+static const struct xfs_dir_ops xfs_dir3_ops = {
 	.sf_entsize = xfs_dir3_sf_entsize,
 	.sf_nextentry = xfs_dir3_sf_nextentry,
 	.sf_get_ftype = xfs_dir3_sfe_get_ftype,
@@ -856,14 +857,14 @@ const struct xfs_dir_ops xfs_dir3_ops = {
 	.db_to_fdindex = xfs_dir3_db_to_fdindex,
 };
 
-const struct xfs_dir_ops xfs_dir2_nondir_ops = {
+static const struct xfs_dir_ops xfs_dir2_nondir_ops = {
 	.node_hdr_size = sizeof(struct xfs_da_node_hdr),
 	.node_hdr_to_disk = xfs_da2_node_hdr_to_disk,
 	.node_hdr_from_disk = xfs_da2_node_hdr_from_disk,
 	.node_tree_p = xfs_da2_node_tree_p,
 };
 
-const struct xfs_dir_ops xfs_dir3_nondir_ops = {
+static const struct xfs_dir_ops xfs_dir3_nondir_ops = {
 	.node_hdr_size = sizeof(struct xfs_da3_node_hdr),
 	.node_hdr_to_disk = xfs_da3_node_hdr_to_disk,
 	.node_hdr_from_disk = xfs_da3_node_hdr_from_disk,
diff --git a/fs/xfs/xfs_dquot_buf.c b/fs/xfs/xfs_dquot_buf.c
index aaaf41b29869..d401457d2f25 100644
--- a/fs/xfs/xfs_dquot_buf.c
+++ b/fs/xfs/xfs_dquot_buf.c
@@ -18,6 +18,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_shared.h"
 #include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
@@ -267,7 +268,7 @@ xfs_dquot_buf_read_verify(
  * the buffer after the update is done. This ensures that the dquot in the
  * buffer always has an up-to-date CRC value.
  */
-void
+static void
 xfs_dquot_buf_write_verify(
 	struct xfs_buf	*bp)
 {
diff --git a/fs/xfs/xfs_ialloc_btree.c b/fs/xfs/xfs_ialloc_btree.c
index 1fa142dc86cb..c8fa5bbb36de 100644
--- a/fs/xfs/xfs_ialloc_btree.c
+++ b/fs/xfs/xfs_ialloc_btree.c
@@ -17,6 +17,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_shared.h"
 #include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
diff --git a/fs/xfs/xfs_rtbitmap.c b/fs/xfs/xfs_rtbitmap.c
index e30efe8be5e6..b1f2fe8af4a8 100644
--- a/fs/xfs/xfs_rtbitmap.c
+++ b/fs/xfs/xfs_rtbitmap.c
@@ -37,6 +37,7 @@
 #include "xfs_buf.h"
 #include "xfs_icache.h"
 #include "xfs_dinode.h"
+#include "xfs_rtalloc.h"
 
 
 /*
diff --git a/fs/xfs/xfs_sb.c b/fs/xfs/xfs_sb.c
index 05b5493d2baa..13c7834b0e65 100644
--- a/fs/xfs/xfs_sb.c
+++ b/fs/xfs/xfs_sb.c
@@ -17,6 +17,7 @@
  */
 #include "xfs.h"
 #include "xfs_fs.h"
+#include "xfs_shared.h"
 #include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 4eb63ad87d7d..d971f4932b5d 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1155,7 +1155,7 @@ xfs_restore_resvblks(struct xfs_mount *mp)
  * Note: xfs_log_quiesce() stops background log work - the callers must ensure
  * it is started again when appropriate.
  */
-void
+static void
 xfs_quiesce_attr(
 	struct xfs_mount	*mp)
 {
-- 
cgit 


From f24b56cbcd9d39cb2ed45b4b451f8614f9494c17 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Wed, 30 Oct 2013 17:55:09 +0100
Subject: ARM: kirkwood: add support for OpenBlocks A7 platform

The OpenBlocks A7 board is designed and sold by PlatHome, and based on
a Kirkwood 6283 Marvell SoC. It is quite similar to the OpenBlocks A6
already supported in the kernel, with the following main differences:

 - The A6 uses a RTC on I2C, while the A7 uses the internal SoC RTC.

 - The A6 has one Ethernet port, while the A7 has two Ethernet ports

 - The A6 has only one USB port, while the A7 integrates a USB hub,
   which provides two front-side USB port, and an internal USB port as
   well.

 - The A6 has 512 MB of RAM, while the A7 has 1 GB of RAM.

 - Slightly different GPIOs for some functions.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/Makefile                   |   5 +-
 arch/arm/boot/dts/kirkwood-openblocks_a7.dts | 223 +++++++++++++++++++++++++++
 2 files changed, 226 insertions(+), 2 deletions(-)
 create mode 100644 arch/arm/boot/dts/kirkwood-openblocks_a7.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 5b832744a0bb..f2b1c33efbfc 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -95,12 +95,13 @@ dtb-$(CONFIG_ARCH_KIRKWOOD) += kirkwood-cloudbox.dtb \
 	kirkwood-ns2mini.dtb \
 	kirkwood-nsa310.dtb \
 	kirkwood-nsa310a.dtb \
+	kirkwood-openblocks_a6.dtb \
+	kirkwood-openblocks_a7.dtb \
 	kirkwood-sheevaplug.dtb \
 	kirkwood-sheevaplug-esata.dtb \
 	kirkwood-topkick.dtb \
 	kirkwood-ts219-6281.dtb \
-	kirkwood-ts219-6282.dtb \
-	kirkwood-openblocks_a6.dtb
+	kirkwood-ts219-6282.dtb
 dtb-$(CONFIG_ARCH_MARCO) += marco-evb.dtb
 dtb-$(CONFIG_ARCH_MSM) += msm8660-surf.dtb \
 	msm8960-cdp.dtb
diff --git a/arch/arm/boot/dts/kirkwood-openblocks_a7.dts b/arch/arm/boot/dts/kirkwood-openblocks_a7.dts
new file mode 100644
index 000000000000..851fb2a60f20
--- /dev/null
+++ b/arch/arm/boot/dts/kirkwood-openblocks_a7.dts
@@ -0,0 +1,223 @@
+/*
+ * Device Tree file for OpenBlocks A7 board
+ *
+ * Copyright (C) 2013 Free Electrons
+ *
+ * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+/dts-v1/;
+
+#include "kirkwood.dtsi"
+#include "kirkwood-6282.dtsi"
+
+/ {
+	model = "Plat'Home OpenBlocksA7";
+	compatible = "plathome,openblocks-a7", "marvell,kirkwood-88f6283", "marvell,kirkwood";
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x40000000>; /* 1 GB */
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8 earlyprintk";
+	};
+
+	ocp@f1000000 {
+		serial@12000 {
+			status = "ok";
+			pinctrl-0 = <&pmx_uart0>;
+			pinctrl-names = "default";
+		};
+
+		serial@12100 {
+			status = "ok";
+			pinctrl-0 = <&pmx_uart1>;
+			pinctrl-names = "default";
+		};
+
+		sata@80000 {
+			nr-ports = <1>;
+			status = "okay";
+		};
+
+		i2c@11100 {
+			status = "okay";
+			pinctrl-0 = <&pmx_twsi1>;
+			pinctrl-names = "default";
+
+			s24c02: s24c02@50 {
+				compatible = "24c02";
+				reg = <0x50>;
+			};
+		};
+
+		pinctrl: pinctrl@10000 {
+			pinctrl-0 = <&pmx_dip_switches &pmx_gpio_header>;
+			pinctrl-names = "default";
+
+			pmx_uart0: pmx-uart0 {
+				marvell,pins = "mpp10", "mpp11", "mpp15",
+					"mpp16";
+				marvell,function = "uart0";
+			};
+
+			pmx_uart1: pmx-uart1 {
+				marvell,pins = "mpp13", "mpp14", "mpp8",
+					"mpp9";
+				marvell,function = "uart1";
+			};
+
+			pmx_sysrst: pmx-sysrst {
+				marvell,pins = "mpp6";
+				marvell,function = "sysrst";
+			};
+
+			pmx_dip_switches: pmx-dip-switches {
+				marvell,pins = "mpp44", "mpp45", "mpp46", "mpp47";
+				marvell,function = "gpio";
+			};
+
+			/*
+			 * Accessible on connector J202. The MPP
+			 * listed below are pin 1-7, pin 8 is unused,
+			 * pin 9 is external reset input and pin 10 is
+			 * ground.
+			 */
+			pmx_gpio_header: pmx-gpio-header {
+				marvell,pins = "mpp17", "mpp7", "mpp29", "mpp28",
+					       "mpp35", "mpp34", "mpp40";
+				marvell,function = "gpio";
+			};
+
+			pmx_gpio_init: pmx-init {
+				marvell,pins = "mpp38";
+				marvell,function = "gpio";
+			};
+
+			pmx_usb_oc: pmx-usb-oc {
+				marvell,pins = "mpp39";
+				marvell,function = "gpio";
+			};
+
+			pmx_leds: pmx-leds {
+				marvell,pins = "mpp41", "mpp42", "mpp43";
+				marvell,function = "gpio";
+			};
+
+			pmx_ge1: pmx-ge1 {
+				marvell,pins = "mpp20", "mpp21", "mpp22", "mpp23",
+					       "mpp24", "mpp25", "mpp26", "mpp27",
+					       "mpp30", "mpp31", "mpp32", "mpp33";
+				marvell,function = "ge1";
+			};
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+		pinctrl-0 = <&pmx_leds>;
+		pinctrl-names = "default";
+
+		led-red {
+			label = "obsa7:red:stat";
+			gpios = <&gpio1 9 1>;
+		};
+
+		led-green {
+			label = "obsa7:green:stat";
+			gpios = <&gpio1 10 1>;
+		};
+
+		led-yellow {
+			label = "obsa7:yellow:stat";
+			gpios = <&gpio1 11 1>;
+		};
+        };
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		pinctrl-0 = <&pmx_gpio_init>;
+		pinctrl-names = "default";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		button@1 {
+			label = "Init Button";
+			linux,code = <116>;
+			gpios = <&gpio1 6 0>;
+		};
+	};
+};
+
+&nand {
+	chip-delay = <25>;
+	status = "okay";
+	pinctrl-0 = <&pmx_nand>;
+	pinctrl-names = "default";
+
+	partition@0 {
+		label = "uboot";
+		reg = <0x0 0x1c0000>;
+	};
+
+	partition@1c0000 {
+		label = "env";
+		reg = <0x1c0000 0x2c0000>;
+	};
+
+	partition@480000 {
+		label = "test";
+		reg = <0x480000 0x160000>;
+	};
+
+	partition@5e0000 {
+		label = "conf";
+		reg = <0x5e0000 0x540000>;
+	};
+
+	partition@b20000 {
+		label = "linux";
+		reg = <0xb20000 0x3d40000>;
+	};
+
+	partition@4860000 {
+		label = "user";
+		reg = <0x4860000 0xb7a0000>;
+	};
+};
+
+&mdio {
+	status = "okay";
+
+	ethphy0: ethernet-phy@0 {
+		device_type = "ethernet-phy";
+		reg = <0>;
+	};
+
+	ethphy1: ethernet-phy@1 {
+		device_type = "ethernet-phy";
+		reg = <1>;
+	};
+};
+
+&eth0 {
+	status = "okay";
+	ethernet0-port@0 {
+		phy-handle = <&ethphy0>;
+	};
+};
+
+&eth1 {
+	status = "okay";
+	pinctrl-0 = <&pmx_ge1>;
+	pinctrl-names = "default";
+	ethernet1-port@0 {
+		phy-handle = <&ethphy1>;
+	};
+};
-- 
cgit 


From ad22c7a043c2cc6792820e6c5da699935933e87d Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 29 Oct 2013 22:11:57 +1100
Subject: xfs: prevent stack overflows from page cache allocation

Page cache allocation doesn't always go through ->begin_write and
hence we don't always get the opportunity to set the allocation
context to GFP_NOFS. Failing to do this means we open up the direct
relcaim stack to recurse into the filesystem and consume a
significant amount of stack.

On RHEL6.4 kernels we are seeing ra_submit() and
generic_file_splice_read() from an nfsd context recursing into the
filesystem via the inode cache shrinker and evicting inodes. This is
causing truncation to be run (e.g EOF block freeing) and causing
bmap btree block merges and free space btree block splits to occur.
These btree manipulations are occurring with the call chain already
30 functions deep and hence there is not enough stack space to
complete such operations.

To avoid these specific overruns, we need to prevent the page cache
allocation from recursing via direct reclaim. We can do that because
the allocation functions take the allocation context from that which
is stored in the mapping for the inode. We don't set that right now,
so the default is GFP_HIGHUSER_MOVABLE, which is effectively a
GFP_KERNEL context. We need it to be the equivalent of GFP_NOFS, so
when we initialise an inode, set the mapping gfp mask appropriately.

This makes the use of AOP_FLAG_NOFS redundant from other parts of
the XFS IO path, so get rid of it.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_aops.c | 3 +--
 fs/xfs/xfs_iops.c | 9 +++++++++
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index eb310caf13b1..71c8c9d2b882 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -1572,8 +1572,7 @@ xfs_vm_write_begin(
 
 	ASSERT(len <= PAGE_CACHE_SIZE);
 
-	page = grab_cache_page_write_begin(mapping, index,
-					   flags | AOP_FLAG_NOFS);
+	page = grab_cache_page_write_begin(mapping, index, flags);
 	if (!page)
 		return -ENOMEM;
 
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index c4cd6d47f523..27e0e544e963 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -1168,6 +1168,7 @@ xfs_setup_inode(
 	struct xfs_inode	*ip)
 {
 	struct inode		*inode = &ip->i_vnode;
+	gfp_t			gfp_mask;
 
 	inode->i_ino = ip->i_ino;
 	inode->i_state = I_NEW;
@@ -1229,6 +1230,14 @@ xfs_setup_inode(
 		break;
 	}
 
+	/*
+	 * Ensure all page cache allocations are done from GFP_NOFS context to
+	 * prevent direct reclaim recursion back into the filesystem and blowing
+	 * stacks or deadlocking.
+	 */
+	gfp_mask = mapping_gfp_mask(inode->i_mapping);
+	mapping_set_gfp_mask(inode->i_mapping, (gfp_mask & ~(__GFP_FS)));
+
 	/*
 	 * If there is no attribute fork no ACL can exist on this inode,
 	 * and it can't have any file capabilities attached to it either.
-- 
cgit 


From 5bf1f439c89d4653f8cc8f8aa303e0d6991aba4b Mon Sep 17 00:00:00 2001
From: Denis Efremov <yefremov.denis@gmail.com>
Date: Fri, 25 Oct 2013 15:53:25 +0400
Subject: xfs:xfs_dir2_node.c: pointer use before check for null

ASSERT on args takes place after args dereference.
This assertion is redundant since we are going to panic anyway.

Found by Linux Driver Verification project (linuxtesting.org) -
PVS-Studio analyzer.

Signed-off-by: Denis Efremov <yefremov.denis@gmail.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_dir2_node.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/xfs/xfs_dir2_node.c b/fs/xfs/xfs_dir2_node.c
index f90bf0690346..56369d4509d5 100644
--- a/fs/xfs/xfs_dir2_node.c
+++ b/fs/xfs/xfs_dir2_node.c
@@ -1327,7 +1327,6 @@ xfs_dir2_leafn_split(
 	args = state->args;
 	dp = args->dp;
 	mp = dp->i_mount;
-	ASSERT(args != NULL);
 	ASSERT(oldblk->magic == XFS_DIR2_LEAFN_MAGIC);
 	error = xfs_da_grow_inode(args, &blkno);
 	if (error) {
-- 
cgit 


From 3af390e2c5fd8a8cab6d123c18fcd3e1a65b43c6 Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Wed, 30 Oct 2013 11:26:57 +0800
Subject: tipc: remove two indentation levels in tipc_recv_msg routine
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The message dispatching part of tipc_recv_msg() is wrapped layers of
while/if/if/switch, causing out-of-control indentation and does not
look very good. We reduce two indentation levels by separating the
message dispatching from the blocks that checks link state and
sequence numbers, allowing longer function and arg names to be
consistently indented without wrapping. Additionally we also rename
"cont" label to "discard" and add one new label called "unlock_discard"
to make code clearer. In all, these are cosmetic changes that do not
alter the operation of TIPC in any way.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Cc: David Laight <david.laight@aculab.com>
Cc: Andreas Bofjäll <andreas.bofjall@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/tipc/link.c | 173 +++++++++++++++++++++++++++-----------------------------
 1 file changed, 84 insertions(+), 89 deletions(-)

diff --git a/net/tipc/link.c b/net/tipc/link.c
index e8153f64d2d6..54163f91b8ae 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1507,15 +1507,15 @@ void tipc_recv_msg(struct sk_buff *head, struct tipc_bearer *b_ptr)
 
 		/* Ensure bearer is still enabled */
 		if (unlikely(!b_ptr->active))
-			goto cont;
+			goto discard;
 
 		/* Ensure message is well-formed */
 		if (unlikely(!link_recv_buf_validate(buf)))
-			goto cont;
+			goto discard;
 
 		/* Ensure message data is a single contiguous unit */
 		if (unlikely(skb_linearize(buf)))
-			goto cont;
+			goto discard;
 
 		/* Handle arrival of a non-unicast link message */
 		msg = buf_msg(buf);
@@ -1531,20 +1531,18 @@ void tipc_recv_msg(struct sk_buff *head, struct tipc_bearer *b_ptr)
 		/* Discard unicast link messages destined for another node */
 		if (unlikely(!msg_short(msg) &&
 			     (msg_destnode(msg) != tipc_own_addr)))
-			goto cont;
+			goto discard;
 
 		/* Locate neighboring node that sent message */
 		n_ptr = tipc_node_find(msg_prevnode(msg));
 		if (unlikely(!n_ptr))
-			goto cont;
+			goto discard;
 		tipc_node_lock(n_ptr);
 
 		/* Locate unicast link endpoint that should handle message */
 		l_ptr = n_ptr->links[b_ptr->identity];
-		if (unlikely(!l_ptr)) {
-			tipc_node_unlock(n_ptr);
-			goto cont;
-		}
+		if (unlikely(!l_ptr))
+			goto unlock_discard;
 
 		/* Verify that communication with node is currently allowed */
 		if ((n_ptr->block_setup & WAIT_PEER_DOWN) &&
@@ -1554,10 +1552,8 @@ void tipc_recv_msg(struct sk_buff *head, struct tipc_bearer *b_ptr)
 			!msg_redundant_link(msg))
 			n_ptr->block_setup &= ~WAIT_PEER_DOWN;
 
-		if (n_ptr->block_setup) {
-			tipc_node_unlock(n_ptr);
-			goto cont;
-		}
+		if (n_ptr->block_setup)
+			goto unlock_discard;
 
 		/* Validate message sequence number info */
 		seq_no = msg_seqno(msg);
@@ -1593,98 +1589,97 @@ void tipc_recv_msg(struct sk_buff *head, struct tipc_bearer *b_ptr)
 
 		/* Now (finally!) process the incoming message */
 protocol_check:
-		if (likely(link_working_working(l_ptr))) {
-			if (likely(seq_no == mod(l_ptr->next_in_no))) {
-				l_ptr->next_in_no++;
-				if (unlikely(l_ptr->oldest_deferred_in))
-					head = link_insert_deferred_queue(l_ptr,
-									  head);
-deliver:
-				if (likely(msg_isdata(msg))) {
-					tipc_node_unlock(n_ptr);
-					tipc_port_recv_msg(buf);
-					continue;
-				}
-				switch (msg_user(msg)) {
-					int ret;
-				case MSG_BUNDLER:
-					l_ptr->stats.recv_bundles++;
-					l_ptr->stats.recv_bundled +=
-						msg_msgcnt(msg);
-					tipc_node_unlock(n_ptr);
-					tipc_link_recv_bundle(buf);
-					continue;
-				case NAME_DISTRIBUTOR:
-					n_ptr->bclink.recv_permitted = true;
-					tipc_node_unlock(n_ptr);
-					tipc_named_recv(buf);
-					continue;
-				case BCAST_PROTOCOL:
-					tipc_link_recv_sync(n_ptr, buf);
-					tipc_node_unlock(n_ptr);
-					continue;
-				case CONN_MANAGER:
-					tipc_node_unlock(n_ptr);
-					tipc_port_recv_proto_msg(buf);
-					continue;
-				case MSG_FRAGMENTER:
-					l_ptr->stats.recv_fragments++;
-					ret = tipc_link_recv_fragment(
-						&l_ptr->defragm_buf,
-						&buf, &msg);
-					if (ret == 1) {
-						l_ptr->stats.recv_fragmented++;
-						goto deliver;
-					}
-					if (ret == -1)
-						l_ptr->next_in_no--;
-					break;
-				case CHANGEOVER_PROTOCOL:
-					type = msg_type(msg);
-					if (link_recv_changeover_msg(&l_ptr,
-								     &buf)) {
-						msg = buf_msg(buf);
-						seq_no = msg_seqno(msg);
-						if (type == ORIGINAL_MSG)
-							goto deliver;
-						goto protocol_check;
-					}
-					break;
-				default:
-					kfree_skb(buf);
-					buf = NULL;
-					break;
-				}
+		if (unlikely(!link_working_working(l_ptr))) {
+			if (msg_user(msg) == LINK_PROTOCOL) {
+				link_recv_proto_msg(l_ptr, buf);
+				head = link_insert_deferred_queue(l_ptr, head);
+				tipc_node_unlock(n_ptr);
+				continue;
+			}
+
+			/* Traffic message. Conditionally activate link */
+			link_state_event(l_ptr, TRAFFIC_MSG_EVT);
+
+			if (link_working_working(l_ptr)) {
+				/* Re-insert buffer in front of queue */
+				buf->next = head;
+				head = buf;
 				tipc_node_unlock(n_ptr);
-				tipc_net_route_msg(buf);
 				continue;
 			}
+			goto unlock_discard;
+		}
+
+		/* Link is now in state WORKING_WORKING */
+		if (unlikely(seq_no != mod(l_ptr->next_in_no))) {
 			link_handle_out_of_seq_msg(l_ptr, buf);
 			head = link_insert_deferred_queue(l_ptr, head);
 			tipc_node_unlock(n_ptr);
 			continue;
 		}
-
-		/* Link is not in state WORKING_WORKING */
-		if (msg_user(msg) == LINK_PROTOCOL) {
-			link_recv_proto_msg(l_ptr, buf);
+		l_ptr->next_in_no++;
+		if (unlikely(l_ptr->oldest_deferred_in))
 			head = link_insert_deferred_queue(l_ptr, head);
+deliver:
+		if (likely(msg_isdata(msg))) {
 			tipc_node_unlock(n_ptr);
+			tipc_port_recv_msg(buf);
 			continue;
 		}
-
-		/* Traffic message. Conditionally activate link */
-		link_state_event(l_ptr, TRAFFIC_MSG_EVT);
-
-		if (link_working_working(l_ptr)) {
-			/* Re-insert buffer in front of queue */
-			buf->next = head;
-			head = buf;
+		switch (msg_user(msg)) {
+			int ret;
+		case MSG_BUNDLER:
+			l_ptr->stats.recv_bundles++;
+			l_ptr->stats.recv_bundled += msg_msgcnt(msg);
+			tipc_node_unlock(n_ptr);
+			tipc_link_recv_bundle(buf);
+			continue;
+		case NAME_DISTRIBUTOR:
+			n_ptr->bclink.recv_permitted = true;
+			tipc_node_unlock(n_ptr);
+			tipc_named_recv(buf);
+			continue;
+		case BCAST_PROTOCOL:
+			tipc_link_recv_sync(n_ptr, buf);
 			tipc_node_unlock(n_ptr);
 			continue;
+		case CONN_MANAGER:
+			tipc_node_unlock(n_ptr);
+			tipc_port_recv_proto_msg(buf);
+			continue;
+		case MSG_FRAGMENTER:
+			l_ptr->stats.recv_fragments++;
+			ret = tipc_link_recv_fragment(&l_ptr->defragm_buf,
+						      &buf, &msg);
+			if (ret == 1) {
+				l_ptr->stats.recv_fragmented++;
+				goto deliver;
+			}
+			if (ret == -1)
+				l_ptr->next_in_no--;
+			break;
+		case CHANGEOVER_PROTOCOL:
+			type = msg_type(msg);
+			if (link_recv_changeover_msg(&l_ptr, &buf)) {
+				msg = buf_msg(buf);
+				seq_no = msg_seqno(msg);
+				if (type == ORIGINAL_MSG)
+					goto deliver;
+				goto protocol_check;
+			}
+			break;
+		default:
+			kfree_skb(buf);
+			buf = NULL;
+			break;
 		}
 		tipc_node_unlock(n_ptr);
-cont:
+		tipc_net_route_msg(buf);
+		continue;
+unlock_discard:
+
+		tipc_node_unlock(n_ptr);
+discard:
 		kfree_skb(buf);
 	}
 	read_unlock_bh(&tipc_net_lock);
-- 
cgit 


From 92b9ccd34a9053c628d230fe27a7e0c10179910f Mon Sep 17 00:00:00 2001
From: Rafał Miłecki <zajec5@gmail.com>
Date: Wed, 30 Oct 2013 08:00:00 +0100
Subject: bgmac: pass received packet to the netif instead of copying it
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Copying whole packets with skb_copy_from_linear_data_offset is a pretty
bad idea. CPU was spending time in __copy_user_common and network
performance was lower. With the new solution iperf-measured speed
increased from 116Mb/s to 134Mb/s.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bgmac.c | 66 +++++++++++++++++++++--------------
 1 file changed, 39 insertions(+), 27 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index 4f9beed54506..a98778e3af84 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -315,7 +315,6 @@ static int bgmac_dma_rx_read(struct bgmac *bgmac, struct bgmac_dma_ring *ring,
 		struct device *dma_dev = bgmac->core->dma_dev;
 		struct bgmac_slot_info *slot = &ring->slots[ring->start];
 		struct sk_buff *skb = slot->skb;
-		struct sk_buff *new_skb;
 		struct bgmac_rx_header *rx;
 		u16 len, flags;
 
@@ -328,38 +327,51 @@ static int bgmac_dma_rx_read(struct bgmac *bgmac, struct bgmac_dma_ring *ring,
 		len = le16_to_cpu(rx->len);
 		flags = le16_to_cpu(rx->flags);
 
-		/* Check for poison and drop or pass the packet */
-		if (len == 0xdead && flags == 0xbeef) {
-			bgmac_err(bgmac, "Found poisoned packet at slot %d, DMA issue!\n",
-				  ring->start);
-		} else {
+		do {
+			dma_addr_t old_dma_addr = slot->dma_addr;
+			int err;
+
+			/* Check for poison and drop or pass the packet */
+			if (len == 0xdead && flags == 0xbeef) {
+				bgmac_err(bgmac, "Found poisoned packet at slot %d, DMA issue!\n",
+					  ring->start);
+				dma_sync_single_for_device(dma_dev,
+							   slot->dma_addr,
+							   BGMAC_RX_BUF_SIZE,
+							   DMA_FROM_DEVICE);
+				break;
+			}
+
 			/* Omit CRC. */
 			len -= ETH_FCS_LEN;
 
-			new_skb = netdev_alloc_skb_ip_align(bgmac->net_dev, len);
-			if (new_skb) {
-				skb_put(new_skb, len);
-				skb_copy_from_linear_data_offset(skb, BGMAC_RX_FRAME_OFFSET,
-								 new_skb->data,
-								 len);
-				skb_checksum_none_assert(skb);
-				new_skb->protocol =
-					eth_type_trans(new_skb, bgmac->net_dev);
-				netif_receive_skb(new_skb);
-				handled++;
-			} else {
-				bgmac->net_dev->stats.rx_dropped++;
-				bgmac_err(bgmac, "Allocation of skb for copying packet failed!\n");
+			/* Prepare new skb as replacement */
+			err = bgmac_dma_rx_skb_for_slot(bgmac, slot);
+			if (err) {
+				/* Poison the old skb */
+				rx->len = cpu_to_le16(0xdead);
+				rx->flags = cpu_to_le16(0xbeef);
+
+				dma_sync_single_for_device(dma_dev,
+							   slot->dma_addr,
+							   BGMAC_RX_BUF_SIZE,
+							   DMA_FROM_DEVICE);
+				break;
 			}
+			bgmac_dma_rx_setup_desc(bgmac, ring, ring->start);
 
-			/* Poison the old skb */
-			rx->len = cpu_to_le16(0xdead);
-			rx->flags = cpu_to_le16(0xbeef);
-		}
+			/* Unmap old skb, we'll pass it to the netfif */
+			dma_unmap_single(dma_dev, old_dma_addr,
+					 BGMAC_RX_BUF_SIZE, DMA_FROM_DEVICE);
+
+			skb_put(skb, BGMAC_RX_FRAME_OFFSET + len);
+			skb_pull(skb, BGMAC_RX_FRAME_OFFSET);
 
-		/* Make it back accessible to the hardware */
-		dma_sync_single_for_device(dma_dev, slot->dma_addr,
-					   BGMAC_RX_BUF_SIZE, DMA_FROM_DEVICE);
+			skb_checksum_none_assert(skb);
+			skb->protocol = eth_type_trans(skb, bgmac->net_dev);
+			netif_receive_skb(skb);
+			handled++;
+		} while (0);
 
 		if (++ring->start >= BGMAC_RX_RING_SLOTS)
 			ring->start = 0;
-- 
cgit 


From 643f7c4e5656bd18c769211f933190f7bb738245 Mon Sep 17 00:00:00 2001
From: "Geyslan G. Bem" <geyslan@gmail.com>
Date: Wed, 30 Oct 2013 16:01:00 -0500
Subject: xfs: fix possible NULL dereference in xlog_verify_iclog

In xlog_verify_iclog a debug check of the incore log buffers prints an
error if icptr is null and then goes on to dereference the pointer
regardless.  Convert this to an assert so that the intention is clear.
This was reported by Coverty.

Signed-off-by: Ben Myers <bpm@sgi.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
---
 fs/xfs/xfs_log.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index e523396753c5..49dd41e6a2dc 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -3710,11 +3710,9 @@ xlog_verify_iclog(
 	/* check validity of iclog pointers */
 	spin_lock(&log->l_icloglock);
 	icptr = log->l_iclog;
-	for (i=0; i < log->l_iclog_bufs; i++) {
-		if (icptr == NULL)
-			xfs_emerg(log->l_mp, "%s: invalid ptr", __func__);
-		icptr = icptr->ic_next;
-	}
+	for (i = 0; i < log->l_iclog_bufs; i++, icptr = icptr->ic_next)
+		ASSERT(icptr);
+
 	if (icptr != log->l_iclog)
 		xfs_emerg(log->l_mp, "%s: corrupt iclog ring", __func__);
 	spin_unlock(&log->l_icloglock);
-- 
cgit 


From 83a1a7ce600b21611753b2265b6469651a722013 Mon Sep 17 00:00:00 2001
From: Chen Weilong <chenweilong@huawei.com>
Date: Wed, 30 Oct 2013 15:28:07 +0800
Subject: mac802154: Use pr_err(...) rather than printk(KERN_ERR ...)

This change is inspired by checkpatch.

Signed-off-by: Weilong Chen <chenweilong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/mac802154/ieee802154_dev.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/net/mac802154/ieee802154_dev.c b/net/mac802154/ieee802154_dev.c
index b7c7f815deae..52ae6646a411 100644
--- a/net/mac802154/ieee802154_dev.c
+++ b/net/mac802154/ieee802154_dev.c
@@ -174,8 +174,7 @@ ieee802154_alloc_device(size_t priv_data_len, struct ieee802154_ops *ops)
 
 	if (!ops || !ops->xmit || !ops->ed || !ops->start ||
 	    !ops->stop || !ops->set_channel) {
-		printk(KERN_ERR
-		       "undefined IEEE802.15.4 device operations\n");
+		pr_err("undefined IEEE802.15.4 device operations\n");
 		return NULL;
 	}
 
@@ -201,8 +200,7 @@ ieee802154_alloc_device(size_t priv_data_len, struct ieee802154_ops *ops)
 
 	phy = wpan_phy_alloc(priv_size);
 	if (!phy) {
-		printk(KERN_ERR
-		       "failure to allocate master IEEE802.15.4 device\n");
+		pr_err("failure to allocate master IEEE802.15.4 device\n");
 		return NULL;
 	}
 
-- 
cgit 


From ba4865027c11d7ac8e5a33e0624dd415caab2027 Mon Sep 17 00:00:00 2001
From: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Date: Wed, 30 Oct 2013 15:39:26 +0800
Subject: ipv6: remove the unnecessary statement in find_match()

After reading the function rt6_check_neigh(), we can
know that the RT6_NUD_FAIL_SOFT can be returned only
when the IS_ENABLE(CONFIG_IPV6_ROUTER_PREF) is false.
so in function find_match(), there is no need to execute
the statement !IS_ENABLED(CONFIG_IPV6_ROUTER_PREF).

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/route.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 5dc6ca6b6686..1ac0b6e17d95 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -619,7 +619,7 @@ static struct rt6_info *find_match(struct rt6_info *rt, int oif, int strict,
 		goto out;
 
 	m = rt6_score_route(rt, oif, strict);
-	if (m == RT6_NUD_FAIL_SOFT && !IS_ENABLED(CONFIG_IPV6_ROUTER_PREF)) {
+	if (m == RT6_NUD_FAIL_SOFT) {
 		match_do_rr = true;
 		m = 0; /* lowest valid score */
 	} else if (m < 0) {
-- 
cgit 


From c17cb8b55b104c549aa20a72fa44141ad2c65ec2 Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Wed, 30 Oct 2013 16:46:15 +0900
Subject: doc:net: Fix typo in Documentation/networking

Correct spelling typo in Documentation/networking

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 Documentation/networking/dccp.txt         | 4 ++--
 Documentation/networking/e100.txt         | 2 +-
 Documentation/networking/ieee802154.txt   | 4 ++--
 Documentation/networking/l2tp.txt         | 2 +-
 Documentation/networking/netdev-FAQ.txt   | 2 +-
 Documentation/networking/netlink_mmap.txt | 6 +++---
 Documentation/networking/operstates.txt   | 4 ++--
 Documentation/networking/rxrpc.txt        | 2 +-
 Documentation/networking/stmmac.txt       | 8 ++++----
 Documentation/networking/vortex.txt       | 4 ++--
 Documentation/networking/x25-iface.txt    | 2 +-
 11 files changed, 20 insertions(+), 20 deletions(-)

diff --git a/Documentation/networking/dccp.txt b/Documentation/networking/dccp.txt
index d718bc2ff1cf..bf5dbe3ab8c5 100644
--- a/Documentation/networking/dccp.txt
+++ b/Documentation/networking/dccp.txt
@@ -18,8 +18,8 @@ Introduction
 Datagram Congestion Control Protocol (DCCP) is an unreliable, connection
 oriented protocol designed to solve issues present in UDP and TCP, particularly
 for real-time and multimedia (streaming) traffic.
-It divides into a base protocol (RFC 4340) and plugable congestion control
-modules called CCIDs. Like plugable TCP congestion control, at least one CCID
+It divides into a base protocol (RFC 4340) and pluggable congestion control
+modules called CCIDs. Like pluggable TCP congestion control, at least one CCID
 needs to be enabled in order for the protocol to function properly. In the Linux
 implementation, this is the TCP-like CCID2 (RFC 4341). Additional CCIDs, such as
 the TCP-friendly CCID3 (RFC 4342), are optional.
diff --git a/Documentation/networking/e100.txt b/Documentation/networking/e100.txt
index 13a32124bca0..f862cf3aff34 100644
--- a/Documentation/networking/e100.txt
+++ b/Documentation/networking/e100.txt
@@ -103,7 +103,7 @@ Additional Configurations
   PRO/100 Family of Adapters is e100.
 
   As an example, if you install the e100 driver for two PRO/100 adapters
-  (eth0 and eth1), add the following to a configuraton file in /etc/modprobe.d/
+  (eth0 and eth1), add the following to a configuration file in /etc/modprobe.d/
 
        alias eth0 e100
        alias eth1 e100
diff --git a/Documentation/networking/ieee802154.txt b/Documentation/networking/ieee802154.txt
index 09eb57329f11..22bbc7225f8e 100644
--- a/Documentation/networking/ieee802154.txt
+++ b/Documentation/networking/ieee802154.txt
@@ -4,7 +4,7 @@
 
 Introduction
 ============
-The IEEE 802.15.4 working group focuses on standartization of bottom
+The IEEE 802.15.4 working group focuses on standardization of bottom
 two layers: Medium Access Control (MAC) and Physical (PHY). And there
 are mainly two options available for upper layers:
  - ZigBee - proprietary protocol from ZigBee Alliance
@@ -66,7 +66,7 @@ net_device, with .type = ARPHRD_IEEE802154. Data is exchanged with socket family
 code via plain sk_buffs. On skb reception skb->cb must contain additional
 info as described in the struct ieee802154_mac_cb. During packet transmission
 the skb->cb is used to provide additional data to device's header_ops->create
-function. Be aware, that this data can be overriden later (when socket code
+function. Be aware that this data can be overridden later (when socket code
 submits skb to qdisc), so if you need something from that cb later, you should
 store info in the skb->data on your own.
 
diff --git a/Documentation/networking/l2tp.txt b/Documentation/networking/l2tp.txt
index e63fc1f7bf87..c74434de2fa5 100644
--- a/Documentation/networking/l2tp.txt
+++ b/Documentation/networking/l2tp.txt
@@ -197,7 +197,7 @@ state information because the file format is subject to change. It is
 implemented to provide extra debug information to help diagnose
 problems.) Users should use the netlink API.
 
-/proc/net/pppol2tp is also provided for backwards compaibility with
+/proc/net/pppol2tp is also provided for backwards compatibility with
 the original pppol2tp driver. It lists information about L2TPv2
 tunnels and sessions only. Its use is discouraged.
 
diff --git a/Documentation/networking/netdev-FAQ.txt b/Documentation/networking/netdev-FAQ.txt
index 3a2c5860a78e..0fe1c6e0dbcd 100644
--- a/Documentation/networking/netdev-FAQ.txt
+++ b/Documentation/networking/netdev-FAQ.txt
@@ -68,7 +68,7 @@ A: To understand this, you need to know a bit of background information
 
    The "net" tree continues to collect fixes for the vX.Y content, and
    is fed back to Linus at regular (~weekly) intervals.  Meaning that the
-   focus for "net" is on stablilization and bugfixes.
+   focus for "net" is on stabilization and bugfixes.
 
    Finally, the vX.Y gets released, and the whole cycle starts over.
 
diff --git a/Documentation/networking/netlink_mmap.txt b/Documentation/networking/netlink_mmap.txt
index 533378839546..b26122973525 100644
--- a/Documentation/networking/netlink_mmap.txt
+++ b/Documentation/networking/netlink_mmap.txt
@@ -45,7 +45,7 @@ processing.
 
 Conversion of the reception path involves calling poll() on the file
 descriptor, once the socket is readable the frames from the ring are
-processsed in order until no more messages are available, as indicated by
+processed in order until no more messages are available, as indicated by
 a status word in the frame header.
 
 On kernel side, in order to make use of memory mapped I/O on receive, the
@@ -56,7 +56,7 @@ Dumps of kernel databases automatically support memory mapped I/O.
 
 Conversion of the transmit path involves changing message construction to
 use memory from the TX ring instead of (usually) a buffer declared on the
-stack and setting up the frame header approriately. Optionally poll() can
+stack and setting up the frame header appropriately. Optionally poll() can
 be used to wait for free frames in the TX ring.
 
 Structured and definitions for using memory mapped I/O are contained in
@@ -231,7 +231,7 @@ Ring setup:
 	if (setsockopt(fd, NETLINK_TX_RING, &req, sizeof(req)) < 0)
 		exit(1)
 
-	/* Calculate size of each invididual ring */
+	/* Calculate size of each individual ring */
 	ring_size = req.nm_block_nr * req.nm_block_size;
 
 	/* Map RX/TX rings. The TX ring is located after the RX ring */
diff --git a/Documentation/networking/operstates.txt b/Documentation/networking/operstates.txt
index 97694572338b..355c6d8ef8ad 100644
--- a/Documentation/networking/operstates.txt
+++ b/Documentation/networking/operstates.txt
@@ -89,8 +89,8 @@ packets. The name 'carrier' and the inversion are historical, think of
 it as lower layer.
 
 Note that for certain kind of soft-devices, which are not managing any
-real hardware, there is possible to set this bit from userpsace.
-One should use TVL IFLA_CARRIER to do so.
+real hardware, it is possible to set this bit from userspace.  One
+should use TVL IFLA_CARRIER to do so.
 
 netif_carrier_ok() can be used to query that bit.
 
diff --git a/Documentation/networking/rxrpc.txt b/Documentation/networking/rxrpc.txt
index 60d05eb77c64..b89bc82eed46 100644
--- a/Documentation/networking/rxrpc.txt
+++ b/Documentation/networking/rxrpc.txt
@@ -144,7 +144,7 @@ An overview of the RxRPC protocol:
  (*) Calls use ACK packets to handle reliability.  Data packets are also
      explicitly sequenced per call.
 
- (*) There are two types of positive acknowledgement: hard-ACKs and soft-ACKs.
+ (*) There are two types of positive acknowledgment: hard-ACKs and soft-ACKs.
      A hard-ACK indicates to the far side that all the data received to a point
      has been received and processed; a soft-ACK indicates that the data has
      been received but may yet be discarded and re-requested.  The sender may
diff --git a/Documentation/networking/stmmac.txt b/Documentation/networking/stmmac.txt
index 457b8bbafb08..cdd916da838d 100644
--- a/Documentation/networking/stmmac.txt
+++ b/Documentation/networking/stmmac.txt
@@ -160,7 +160,7 @@ Where:
  o pmt: core has the embedded power module (optional).
  o force_sf_dma_mode: force DMA to use the Store and Forward mode
 		     instead of the Threshold.
- o force_thresh_dma_mode: force DMA to use the Shreshold mode other than
+ o force_thresh_dma_mode: force DMA to use the Threshold mode other than
 		     the Store and Forward mode.
  o riwt_off: force to disable the RX watchdog feature and switch to NAPI mode.
  o fix_mac_speed: this callback is used for modifying some syscfg registers
@@ -175,7 +175,7 @@ Where:
 	     registers.
  o custom_cfg/custom_data: this is a custom configuration that can be passed
 			   while initializing the resources.
- o bsp_priv: another private poiter.
+ o bsp_priv: another private pointer.
 
 For MDIO bus The we have:
 
@@ -271,7 +271,7 @@ reset procedure etc).
  o dwmac1000_dma.c:  dma functions for the GMAC chip;
  o dwmac1000.h: specific header file for the GMAC;
  o dwmac100_core: MAC 100 core and dma code;
- o dwmac100_dma.c: dma funtions for the MAC chip;
+ o dwmac100_dma.c: dma functions for the MAC chip;
  o dwmac1000.h: specific header file for the MAC;
  o dwmac_lib.c: generic DMA functions shared among chips;
  o enh_desc.c: functions for handling enhanced descriptors;
@@ -364,4 +364,4 @@ Auto-negotiated Link Parter Ability.
 10) TODO:
  o XGMAC is not supported.
  o Complete the TBI & RTBI support.
- o extened VLAN support for 3.70a SYNP GMAC.
+ o extend VLAN support for 3.70a SYNP GMAC.
diff --git a/Documentation/networking/vortex.txt b/Documentation/networking/vortex.txt
index 9a8041dcbb53..97282da82b75 100644
--- a/Documentation/networking/vortex.txt
+++ b/Documentation/networking/vortex.txt
@@ -68,7 +68,7 @@ Module parameters
 
 There are several parameters which may be provided to the driver when
 its module is loaded.  These are usually placed in /etc/modprobe.d/*.conf
-configuretion files.  Example:
+configuration files.  Example:
 
 options 3c59x debug=3 rx_copybreak=300
 
@@ -178,7 +178,7 @@ max_interrupt_work=N
 
   The driver's interrupt service routine can handle many receive and
   transmit packets in a single invocation.  It does this in a loop. 
-  The value of max_interrupt_work governs how mnay times the interrupt
+  The value of max_interrupt_work governs how many times the interrupt
   service routine will loop.  The default value is 32 loops.  If this
   is exceeded the interrupt service routine gives up and generates a
   warning message "eth0: Too much work in interrupt".
diff --git a/Documentation/networking/x25-iface.txt b/Documentation/networking/x25-iface.txt
index 78f662ee0622..7f213b556e85 100644
--- a/Documentation/networking/x25-iface.txt
+++ b/Documentation/networking/x25-iface.txt
@@ -105,7 +105,7 @@ reduced by the following measures or a combination thereof:
     later.
     The lapb module interface was modified to support this. Its
     data_indication() method should now transparently pass the
-    netif_rx() return value to the (lapb mopdule) caller.
+    netif_rx() return value to the (lapb module) caller.
 (2) Drivers for kernel versions 2.2.x should always check the global
     variable netdev_dropping when a new frame is received. The driver
     should only call netif_rx() if netdev_dropping is zero. Otherwise
-- 
cgit 


From 3961532fd41f13e6d6958c44c0ccc567da144a79 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 30 Oct 2013 09:18:21 +0100
Subject: 6lowpan: remove unnecessary set of headers

On receiving side we don't need to set any headers in skb because the
6LoWPAN layer do not access it. Currently these values will set twice
after calling netif_rx.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Werner Almesberger <werner@almesberger.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ieee802154/6lowpan.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index fde90e63027d..6d6778432144 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -737,7 +737,6 @@ static int lowpan_skb_deliver(struct sk_buff *skb, struct ipv6hdr *hdr)
 		return -ENOMEM;
 
 	skb_push(new, sizeof(struct ipv6hdr));
-	skb_reset_network_header(new);
 	skb_copy_to_linear_data(new, hdr, sizeof(struct ipv6hdr));
 
 	new->protocol = htons(ETH_P_IPV6);
@@ -1059,7 +1058,6 @@ lowpan_process_data(struct sk_buff *skb)
 		skb = new;
 
 		skb_push(skb, sizeof(struct udphdr));
-		skb_reset_transport_header(skb);
 		skb_copy_to_linear_data(skb, &uh, sizeof(struct udphdr));
 
 		lowpan_raw_dump_table(__func__, "raw UDP header dump",
@@ -1323,8 +1321,6 @@ static int lowpan_rcv(struct sk_buff *skb, struct net_device *dev,
 
 		/* Pull off the 1-byte of 6lowpan header. */
 		skb_pull(local_skb, 1);
-		skb_reset_network_header(local_skb);
-		skb_set_transport_header(local_skb, sizeof(struct ipv6hdr));
 
 		lowpan_give_skb_to_devices(local_skb);
 
-- 
cgit 


From 3e69162ea4a9e927cb3619b96c86aae4ded60112 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 30 Oct 2013 09:18:22 +0100
Subject: 6lowpan: set and use mac_len for mac header length

Set the mac header length while creating the 802.15.4 mac header.

Drop the function for recalculate mac header length in upper layers
which was static and works for intra pan communication only.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Werner Almesberger <werner@almesberger.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ieee802154/6lowpan.c | 13 +------------
 net/mac802154/wpan.c     |  2 ++
 2 files changed, 3 insertions(+), 12 deletions(-)

diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index 6d6778432144..e6db1f51bf5b 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -1100,17 +1100,6 @@ static int lowpan_set_address(struct net_device *dev, void *p)
 	return 0;
 }
 
-static int lowpan_get_mac_header_length(struct sk_buff *skb)
-{
-	/*
-	 * Currently long addressing mode is supported only, so the overall
-	 * header size is 21:
-	 * FC SeqNum DPAN DA  SA  Sec
-	 * 2  +  1  +  2 + 8 + 8 + 0  = 21
-	 */
-	return 21;
-}
-
 static int
 lowpan_fragment_xmit(struct sk_buff *skb, u8 *head,
 			int mlen, int plen, int offset, int type)
@@ -1150,7 +1139,7 @@ lowpan_skb_fragmentation(struct sk_buff *skb, struct net_device *dev)
 	int  err, header_length, payload_length, tag, offset = 0;
 	u8 head[5];
 
-	header_length = lowpan_get_mac_header_length(skb);
+	header_length = skb->mac_len;
 	payload_length = skb->len - header_length;
 	tag = lowpan_dev_info(dev)->fragment_tag++;
 
diff --git a/net/mac802154/wpan.c b/net/mac802154/wpan.c
index 2ca2f4dceab7..e24bcf977296 100644
--- a/net/mac802154/wpan.c
+++ b/net/mac802154/wpan.c
@@ -208,6 +208,8 @@ static int mac802154_header_create(struct sk_buff *skb,
 	head[1] = fc >> 8;
 
 	memcpy(skb_push(skb, pos), head, pos);
+	skb_reset_mac_header(skb);
+	skb->mac_len = pos;
 
 	return pos;
 }
-- 
cgit 


From 578d524127612354d91905f932ee88d73d8d1645 Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 30 Oct 2013 09:18:23 +0100
Subject: 6lowpan: set 6lowpan network and transport header

This is necessary to access network header with the skb_network_header
function instead of calculate the position with mac_len, etc.
Do the same for the transport header, when we replace the IPv6 header
with the 6LoWPAN header.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Acked-by: Werner Almesberger <werner@almesberger.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ieee802154/6lowpan.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index e6db1f51bf5b..58c07fd967d1 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -654,7 +654,9 @@ static int lowpan_header_create(struct sk_buff *skb,
 	head[1] = iphc1;
 
 	skb_pull(skb, sizeof(struct ipv6hdr));
+	skb_reset_transport_header(skb);
 	memcpy(skb_push(skb, hc06_ptr - head), head, hc06_ptr - head);
+	skb_reset_network_header(skb);
 
 	lowpan_raw_dump_table(__func__, "raw skb data dump", skb->data,
 				skb->len);
-- 
cgit 


From 3582b900ad2c1e218e4963060ba6dcf757cb702e Mon Sep 17 00:00:00 2001
From: Alexander Aring <alex.aring@gmail.com>
Date: Wed, 30 Oct 2013 09:18:24 +0100
Subject: 6lowpan: cleanup skb copy data

This patch drops the direct memcpy on skb and uses the right skb
memcpy functions. Also remove an unnecessary check if plen is non zero.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Reviewed-by: Werner Almesberger <werner@almesberger.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ieee802154/6lowpan.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index 58c07fd967d1..9497c6f3276b 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -1122,12 +1122,15 @@ lowpan_fragment_xmit(struct sk_buff *skb, u8 *head,
 	frag->priority = skb->priority;
 
 	/* copy header, MFR and payload */
-	memcpy(skb_put(frag, mlen), skb->data, mlen);
-	memcpy(skb_put(frag, hlen), head, hlen);
+	skb_put(frag, mlen);
+	skb_copy_to_linear_data(frag, skb_mac_header(skb), mlen);
 
-	if (plen)
-		skb_copy_from_linear_data_offset(skb, offset + mlen,
-					skb_put(frag, plen), plen);
+	skb_put(frag, hlen);
+	skb_copy_to_linear_data_offset(frag, mlen, head, hlen);
+
+	skb_put(frag, plen);
+	skb_copy_to_linear_data_offset(frag, mlen + hlen,
+				       skb_network_header(skb) + offset, plen);
 
 	lowpan_raw_dump_table(__func__, " raw fragment dump", frag->data,
 								frag->len);
-- 
cgit 


From 8b4b30365ce6cefe4193f439ac7263bb2cdd66fd Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 30 Oct 2013 18:40:04 +0100
Subject: ASoC: ml26124: Fix negative array index read

get_coeff() may return an error.

Spotted by coverity CID 703394.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/ml26124.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/codecs/ml26124.c b/sound/soc/codecs/ml26124.c
index 26118828782b..185fa3bc3052 100644
--- a/sound/soc/codecs/ml26124.c
+++ b/sound/soc/codecs/ml26124.c
@@ -342,6 +342,8 @@ static int ml26124_hw_params(struct snd_pcm_substream *substream,
 	struct ml26124_priv *priv = snd_soc_codec_get_drvdata(codec);
 	int i = get_coeff(priv->mclk, params_rate(hw_params));
 
+	if (i < 0)
+		return i;
 	priv->substream = substream;
 	priv->rate = params_rate(hw_params);
 
-- 
cgit 


From 45d20e8348969a165c53cfb91f445e7cc599a9f0 Mon Sep 17 00:00:00 2001
From: Gerhard Sittig <gsi@denx.de>
Date: Fri, 27 Sep 2013 17:28:38 +0200
Subject: powerpc/mpc512x: silence build warning upon disabled DIU

a disabled Kconfig option results in a reference to a not implemented
routine when the IS_ENABLED() macro is used for both conditional
implementation of the routine as well as a C language source code test
at the call site -- the "if (0) func();" construct only gets eliminated
later by the optimizer, while the compiler already has emitted its
warning about "func()" being undeclared

provide an empty implementation for the mpc512x_setup_diu() and
mpc512x_init_diu() routines in case of the disabled option, to avoid the
compiler warning which is considered fatal and breaks compilation

the bug appeared with commit 2abbbb63c90ab55ca3f054772c2e5ba7df810c48
"powerpc/mpc512x: move common code to shared.c file", how to reproduce:

  make mpc512x_defconfig
  echo CONFIG_FB_FSL_DIU=n >> .config && make olddefconfig
  make

    CC      arch/powerpc/platforms/512x/mpc512x_shared.o
  .../arch/powerpc/platforms/512x/mpc512x_shared.c: In function 'mpc512x_init_early':
  .../arch/powerpc/platforms/512x/mpc512x_shared.c:456:3: error: implicit declaration of function 'mpc512x_init_diu' [-Werror=implicit-function-declaration]
  .../arch/powerpc/platforms/512x/mpc512x_shared.c: In function 'mpc512x_setup_arch':
  .../arch/powerpc/platforms/512x/mpc512x_shared.c:469:3: error: implicit declaration of function 'mpc512x_setup_diu' [-Werror=implicit-function-declaration]
  cc1: all warnings being treated as errors
  make[4]: *** [arch/powerpc/platforms/512x/mpc512x_shared.o] Error 1

Signed-off-by: Gerhard Sittig <gsi@denx.de>
CC: <stable@vger.kernel.org> # v3.11
Signed-off-by: Anatolij Gustschin <agust@denx.de>
---
 arch/powerpc/platforms/512x/mpc512x_shared.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/powerpc/platforms/512x/mpc512x_shared.c b/arch/powerpc/platforms/512x/mpc512x_shared.c
index a82a41b4fd91..1a7b1d0f41df 100644
--- a/arch/powerpc/platforms/512x/mpc512x_shared.c
+++ b/arch/powerpc/platforms/512x/mpc512x_shared.c
@@ -303,6 +303,9 @@ void __init mpc512x_setup_diu(void)
 	diu_ops.release_bootmem		= mpc512x_release_bootmem;
 }
 
+#else
+void __init mpc512x_setup_diu(void) { /* EMPTY */ }
+void __init mpc512x_init_diu(void) { /* EMPTY */ }
 #endif
 
 void __init mpc512x_init_IRQ(void)
-- 
cgit 


From 509a02df44df8454b96da0b9bfcaa19f0a349df6 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Fri, 4 Oct 2013 17:37:09 +0200
Subject: Kind of revert "powerpc: 52xx: provide a default in
 mpc52xx_irqhost_map()"

This more or less reverts commit 6391f697d4892a6f233501beea553e13f7745a23.
Instead of adding an unneeded 'default', mark the variable to prevent
the false positive 'uninitialized var'. The other change (fixing the
printout) needs revert, too. We want to know WHICH critical irq failed,
not which level it had.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Anatolij Gustschin <agust@denx.de>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
---
 arch/powerpc/platforms/52xx/mpc52xx_pic.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pic.c b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
index b69221ba07fd..2898b737deb7 100644
--- a/arch/powerpc/platforms/52xx/mpc52xx_pic.c
+++ b/arch/powerpc/platforms/52xx/mpc52xx_pic.c
@@ -340,7 +340,7 @@ static int mpc52xx_irqhost_map(struct irq_domain *h, unsigned int virq,
 {
 	int l1irq;
 	int l2irq;
-	struct irq_chip *irqchip;
+	struct irq_chip *uninitialized_var(irqchip);
 	void *hndlr;
 	int type;
 	u32 reg;
@@ -373,9 +373,8 @@ static int mpc52xx_irqhost_map(struct irq_domain *h, unsigned int virq,
 	case MPC52xx_IRQ_L1_PERP: irqchip = &mpc52xx_periph_irqchip; break;
 	case MPC52xx_IRQ_L1_SDMA: irqchip = &mpc52xx_sdma_irqchip; break;
 	case MPC52xx_IRQ_L1_CRIT:
-	default:
 		pr_warn("%s: Critical IRQ #%d is unsupported! Nopping it.\n",
-			__func__, l1irq);
+			__func__, l2irq);
 		irq_set_chip(virq, &no_irq_chip);
 		return 0;
 	}
-- 
cgit 


From 2bf75084f6d9f9a91ba6e30a501ff070d8a1acf6 Mon Sep 17 00:00:00 2001
From: Anatolij Gustschin <agust@denx.de>
Date: Wed, 16 Oct 2013 13:11:27 +0200
Subject: powerpc/52xx: fix build breakage for MPC5200 LPBFIFO module

The MPC5200 LPBFIFO driver requires the bestcomm module to be
enabled, otherwise building will fail. Fix it.

Cc: <stable@vger.kernel.org> # 3.10+
Reported-by: Wolfgang Denk <wd@denx.de>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
---
 arch/powerpc/platforms/52xx/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/52xx/Kconfig b/arch/powerpc/platforms/52xx/Kconfig
index 90f4496017e4..af54174801f7 100644
--- a/arch/powerpc/platforms/52xx/Kconfig
+++ b/arch/powerpc/platforms/52xx/Kconfig
@@ -57,5 +57,5 @@ config PPC_MPC5200_BUGFIX
 
 config PPC_MPC5200_LPBFIFO
 	tristate "MPC5200 LocalPlus bus FIFO driver"
-	depends on PPC_MPC52xx
+	depends on PPC_MPC52xx && PPC_BESTCOMM
 	select PPC_BESTCOMM_GEN_BD
-- 
cgit 


From 10e6e65dfcedff63275c3d649d329c044caa8e26 Mon Sep 17 00:00:00 2001
From: Eric Sandeen <sandeen@sandeen.net>
Date: Mon, 9 Sep 2013 15:33:29 -0500
Subject: xfs: be more forgiving of a v4 secondary sb w/ junk in v5 fields

Today, if xfs_sb_read_verify encounters a v4 superblock
with junk past v4 fields which includes data in sb_crc,
it will be treated as a failing checksum and a significant
corruption.

There are known prior bugs which leave junk at the end
of the V4 superblock; we don't need to actually fail the
verification in this case if other checks pan out ok.

So if this is a secondary superblock, and the primary
superblock doesn't indicate that this is a V5 filesystem,
don't treat this as an actual checksum failure.

We should probably check the garbage condition as
we do in xfs_repair, and possibly warn about it
or self-heal, but that's a different scope of work.

Stable folks: This can go back to v3.10, which is what
introduced the sb CRC checking that is tripped up by old,
stale, incorrect V4 superblocks w/ unzeroed bits.

Cc: stable@vger.kernel.org
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Acked-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_sb.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/fs/xfs/xfs_sb.c b/fs/xfs/xfs_sb.c
index 13c7834b0e65..b7c9aea77f8f 100644
--- a/fs/xfs/xfs_sb.c
+++ b/fs/xfs/xfs_sb.c
@@ -588,6 +588,11 @@ xfs_sb_verify(
  * single bit error could clear the feature bit and unused parts of the
  * superblock are supposed to be zero. Hence a non-null crc field indicates that
  * we've potentially lost a feature bit and we should check it anyway.
+ *
+ * However, past bugs (i.e. in growfs) left non-zeroed regions beyond the
+ * last field in V4 secondary superblocks.  So for secondary superblocks,
+ * we are more forgiving, and ignore CRC failures if the primary doesn't
+ * indicate that the fs version is V5.
  */
 static void
 xfs_sb_read_verify(
@@ -608,8 +613,12 @@ xfs_sb_read_verify(
 
 		if (!xfs_verify_cksum(bp->b_addr, be16_to_cpu(dsb->sb_sectsize),
 				      offsetof(struct xfs_sb, sb_crc))) {
-			error = EFSCORRUPTED;
-			goto out_error;
+			/* Only fail bad secondaries on a known V5 filesystem */
+			if (bp->b_bn != XFS_SB_DADDR &&
+			    xfs_sb_version_hascrc(&mp->m_sb)) {
+				error = EFSCORRUPTED;
+				goto out_error;
+			}
 		}
 	}
 	error = xfs_sb_verify(bp, true);
-- 
cgit 


From 7e198197ec878c720af4dc35c49c0c6a99b83f9f Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Fri, 11 Oct 2013 10:37:38 -0700
Subject: powerpc/mpc512x: remove unnecessary #if

Several functions are only ever referenced locally, so make them static.
Of those functions, many of them are protected by an #if. However, the
code which can compile fine in either case.

Now that (1) the unneeded code is marked 'static' and (2) the code is
only used under a C 'if (IS_ENABLED(CONFIG_FB_FSL_DIU))', the compiler
can automatically remove the unneeded code, and we don't need the #if or
the empty stub functions.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
---
 arch/powerpc/platforms/512x/mpc512x_shared.c | 21 +++++++--------------
 arch/powerpc/sysdev/fsl_soc.h                |  3 ---
 2 files changed, 7 insertions(+), 17 deletions(-)

diff --git a/arch/powerpc/platforms/512x/mpc512x_shared.c b/arch/powerpc/platforms/512x/mpc512x_shared.c
index 1a7b1d0f41df..36b5652aada2 100644
--- a/arch/powerpc/platforms/512x/mpc512x_shared.c
+++ b/arch/powerpc/platforms/512x/mpc512x_shared.c
@@ -60,8 +60,6 @@ void mpc512x_restart(char *cmd)
 		;
 }
 
-#if IS_ENABLED(CONFIG_FB_FSL_DIU)
-
 struct fsl_diu_shared_fb {
 	u8		gamma[0x300];	/* 32-bit aligned! */
 	struct diu_ad	ad0;		/* 32-bit aligned! */
@@ -71,7 +69,7 @@ struct fsl_diu_shared_fb {
 };
 
 #define DIU_DIV_MASK	0x000000ff
-void mpc512x_set_pixel_clock(unsigned int pixclock)
+static void mpc512x_set_pixel_clock(unsigned int pixclock)
 {
 	unsigned long bestval, bestfreq, speed, busfreq;
 	unsigned long minpixclock, maxpixclock, pixval;
@@ -164,7 +162,7 @@ void mpc512x_set_pixel_clock(unsigned int pixclock)
 	iounmap(ccm);
 }
 
-enum fsl_diu_monitor_port
+static enum fsl_diu_monitor_port
 mpc512x_valid_monitor_port(enum fsl_diu_monitor_port port)
 {
 	return FSL_DIU_PORT_DVI;
@@ -179,7 +177,7 @@ static inline void mpc512x_free_bootmem(struct page *page)
 	free_reserved_page(page);
 }
 
-void mpc512x_release_bootmem(void)
+static void mpc512x_release_bootmem(void)
 {
 	unsigned long addr = diu_shared_fb.fb_phys & PAGE_MASK;
 	unsigned long size = diu_shared_fb.fb_len;
@@ -205,7 +203,7 @@ void mpc512x_release_bootmem(void)
  * address range will be reserved in setup_arch() after bootmem
  * allocator is up.
  */
-void __init mpc512x_init_diu(void)
+static void __init mpc512x_init_diu(void)
 {
 	struct device_node *np;
 	struct diu __iomem *diu_reg;
@@ -274,7 +272,7 @@ out:
 	iounmap(diu_reg);
 }
 
-void __init mpc512x_setup_diu(void)
+static void __init mpc512x_setup_diu(void)
 {
 	int ret;
 
@@ -303,11 +301,6 @@ void __init mpc512x_setup_diu(void)
 	diu_ops.release_bootmem		= mpc512x_release_bootmem;
 }
 
-#else
-void __init mpc512x_setup_diu(void) { /* EMPTY */ }
-void __init mpc512x_init_diu(void) { /* EMPTY */ }
-#endif
-
 void __init mpc512x_init_IRQ(void)
 {
 	struct device_node *np;
@@ -340,7 +333,7 @@ static struct of_device_id __initdata of_bus_ids[] = {
 	{},
 };
 
-void __init mpc512x_declare_of_platform_devices(void)
+static void __init mpc512x_declare_of_platform_devices(void)
 {
 	if (of_platform_bus_probe(NULL, of_bus_ids, NULL))
 		printk(KERN_ERR __FILE__ ": "
@@ -390,7 +383,7 @@ static unsigned int __init get_fifo_size(struct device_node *np,
 		    ((u32)(_base) + sizeof(struct mpc52xx_psc)))
 
 /* Init PSC FIFO space for TX and RX slices */
-void __init mpc512x_psc_fifo_init(void)
+static void __init mpc512x_psc_fifo_init(void)
 {
 	struct device_node *np;
 	void __iomem *psc;
diff --git a/arch/powerpc/sysdev/fsl_soc.h b/arch/powerpc/sysdev/fsl_soc.h
index c6d00736f07f..4c5a19ef4f0b 100644
--- a/arch/powerpc/sysdev/fsl_soc.h
+++ b/arch/powerpc/sysdev/fsl_soc.h
@@ -21,8 +21,6 @@ struct device_node;
 
 extern void fsl_rstcr_restart(char *cmd);
 
-#if defined(CONFIG_FB_FSL_DIU) || defined(CONFIG_FB_FSL_DIU_MODULE)
-
 /* The different ports that the DIU can be connected to */
 enum fsl_diu_monitor_port {
 	FSL_DIU_PORT_DVI,	/* DVI */
@@ -43,7 +41,6 @@ struct platform_diu_data_ops {
 };
 
 extern struct platform_diu_data_ops diu_ops;
-#endif
 
 void fsl_hv_restart(char *cmd);
 void fsl_hv_halt(void);
-- 
cgit 


From ae7c4c878046b09c38d7c6cb49328df032f3d987 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 21 Oct 2013 10:52:15 +0900
Subject: ARM: EXYNOS: Use dev_err() instead of printk() for cpuidle driver

Change raw printk() call to dev_err() to provide a better message
to userspace so it can properly identify the device.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/arm/mach-exynos/cpuidle.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c
index 1bde6ad07d93..6616e0fad689 100644
--- a/arch/arm/mach-exynos/cpuidle.c
+++ b/arch/arm/mach-exynos/cpuidle.c
@@ -206,7 +206,7 @@ static int __init exynos_cpuidle_probe(struct platform_device *pdev)
 
 	ret = cpuidle_register_driver(&exynos4_idle_driver);
 	if (ret) {
-		printk(KERN_ERR "CPUidle failed to register driver\n");
+		dev_err(&pdev->dev, "failed to register cpuidle driver\n");
 		return ret;
 	}
 
@@ -220,7 +220,7 @@ static int __init exynos_cpuidle_probe(struct platform_device *pdev)
 
 		ret = cpuidle_register_device(device);
 		if (ret) {
-			printk(KERN_ERR "CPUidle register device failed\n");
+			dev_err(&pdev->dev, "failed to register cpuidle device\n");
 			return ret;
 		}
 	}
-- 
cgit 


From f612a4fbdc8d6c77eb3721557f64bf0653ee5299 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 21 Oct 2013 10:53:03 +0900
Subject: ARM: EXYNOS: Remove incorrect __init annotation from cpuidle driver

When platform_driver_probe() is not used, bind/unbind via sysfs is
enabled.  Thus, __init annotation should be removed from probe().
Also, this patch fixes section mismatch warning.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/arm/mach-exynos/cpuidle.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c
index 6616e0fad689..ddbfe8709fe7 100644
--- a/arch/arm/mach-exynos/cpuidle.c
+++ b/arch/arm/mach-exynos/cpuidle.c
@@ -193,7 +193,7 @@ static void __init exynos5_core_down_clk(void)
 	__raw_writel(tmp, EXYNOS5_PWR_CTRL2);
 }
 
-static int __init exynos_cpuidle_probe(struct platform_device *pdev)
+static int exynos_cpuidle_probe(struct platform_device *pdev)
 {
 	int cpu_id, ret;
 	struct cpuidle_device *device;
-- 
cgit 


From 384b38b66947b06999b3e39a596d4f2fb94f77e4 Mon Sep 17 00:00:00 2001
From: Yuanyuan Zhong <zyy@motorola.com>
Date: Wed, 30 Oct 2013 17:31:49 +0100
Subject: ARM: 7873/1: vfp: clear vfp_current_hw_state for dying cpu

The CPU_DYING notifier is called by cpu stopper task which
does not own the context held in the VFP hardware. Calling
vfp_force_reload() has no effect.
Replace it with clearing vfp_current_hw_state.

Signed-off-by: Yuanyuan Zhong <zyy@motorola.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/vfp/vfpmodule.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c
index 52b8f40b1c73..2f37e1d6cb45 100644
--- a/arch/arm/vfp/vfpmodule.c
+++ b/arch/arm/vfp/vfpmodule.c
@@ -642,9 +642,9 @@ int vfp_restore_user_hwstate(struct user_vfp __user *ufp,
 static int vfp_hotplug(struct notifier_block *b, unsigned long action,
 	void *hcpu)
 {
-	if (action == CPU_DYING || action == CPU_DYING_FROZEN) {
-		vfp_force_reload((long)hcpu, current_thread_info());
-	} else if (action == CPU_STARTING || action == CPU_STARTING_FROZEN)
+	if (action == CPU_DYING || action == CPU_DYING_FROZEN)
+		vfp_current_hw_state[(long)hcpu] = NULL;
+	else if (action == CPU_STARTING || action == CPU_STARTING_FROZEN)
 		vfp_enable(NULL);
 	return NOTIFY_OK;
 }
-- 
cgit 


From 8217d146ab98a1790349d79c436176658e311e3c Mon Sep 17 00:00:00 2001
From: Anna Schumaker <bjschuma@netapp.com>
Date: Wed, 30 Oct 2013 13:38:13 -0400
Subject: NFSD: Add support for NFS v4.2 operation checking

The server does allow NFS over v4.2, even if it doesn't add any new
operations yet.

I also switch to using constants to represent the last operation for
each minor version since this makes the code cleaner and easier to
understand at a quick glance.

Signed-off-by: Anna Schumaker <bjschuma@netapp.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/nfs4xdr.c    | 8 +++++---
 include/linux/nfs4.h | 3 +++
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 99bebea20668..83db5a742aa9 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1585,11 +1585,13 @@ static nfsd4_dec nfsd4_dec_ops[] = {
 static inline bool
 nfsd4_opnum_in_range(struct nfsd4_compoundargs *argp, struct nfsd4_op *op)
 {
-	if (op->opnum < FIRST_NFS4_OP || op->opnum > LAST_NFS4_OP)
+	if (op->opnum < FIRST_NFS4_OP)
 		return false;
-	else if (argp->minorversion == 0 && op->opnum > OP_RELEASE_LOCKOWNER)
+	else if (argp->minorversion == 0 && op->opnum > LAST_NFS40_OP)
 		return false;
-	else if (argp->minorversion == 1 && op->opnum > OP_RECLAIM_COMPLETE)
+	else if (argp->minorversion == 1 && op->opnum > LAST_NFS41_OP)
+		return false;
+	else if (argp->minorversion == 2 && op->opnum > LAST_NFS42_OP)
 		return false;
 	return true;
 }
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index e36dee52f224..737e40e4c554 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -118,6 +118,9 @@ Needs to be updated if more operations are defined in future.*/
 
 #define FIRST_NFS4_OP	OP_ACCESS
 #define LAST_NFS4_OP 	OP_RECLAIM_COMPLETE
+#define LAST_NFS40_OP	OP_RELEASE_LOCKOWNER
+#define LAST_NFS41_OP	OP_RECLAIM_COMPLETE
+#define LAST_NFS42_OP	OP_RECLAIM_COMPLETE
 
 enum nfsstat4 {
 	NFS4_OK = 0,
-- 
cgit 


From d68ce0177c1e51fb332369e0c99852a6d05668af Mon Sep 17 00:00:00 2001
From: David Rientjes <rientjes@google.com>
Date: Fri, 11 Oct 2013 16:07:31 -0700
Subject: x86, hyperv: Fix build error due to missing <asm/apic.h> include

9e7827b5ea4c ("x86, hyperv: Get the local APIC timer frequency from the
hypervisor") breaks the build with some configs because apic.h isn't
directly included:

arch/x86/kernel/cpu/mshyperv.c: In function 'ms_hyperv_init_platform':
arch/x86/kernel/cpu/mshyperv.c:90:3: error: 'lapic_timer_frequency' undeclared (first use in this function)
arch/x86/kernel/cpu/mshyperv.c:90:3: note: each undeclared identifier is reported only once for each function it appears in

Fix it by including asm/apic.h.

Signed-off-by: David Rientjes <rientjes@google.com>
Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1310111604160.31170@chino.kir.corp.google.com
Acked-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/kernel/cpu/mshyperv.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index 628ff50ab75f..9f6e9f89d9d6 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -25,6 +25,7 @@
 #include <asm/idle.h>
 #include <asm/irq_regs.h>
 #include <asm/i8259.h>
+#include <asm/apic.h>
 
 struct ms_hyperv_info ms_hyperv;
 EXPORT_SYMBOL_GPL(ms_hyperv);
-- 
cgit 


From e79a23c5b9870b7f80425793abeb10e57f7486d4 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Wed, 30 Oct 2013 15:44:40 -0400
Subject: cpufreq: arm_big_little: add in-kernel switching (IKS) support

This patch adds IKS (In Kernel Switcher) support to cpufreq driver.

This creates a combined freq table for A7-A15 CPU pairs. A7 frequencies
are virtualized and scaled down to half the actual frequencies to
approximate a linear scale across the combined A7+A15 range. When the
requested frequency change crosses the A7-A15 boundary a cluster switch
is invoked.

Based on earlier work from Sudeep KarkadaNagesha.

Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/arm_big_little.c | 363 ++++++++++++++++++++++++++++++++++++---
 drivers/cpufreq/arm_big_little.h |   5 -
 2 files changed, 337 insertions(+), 31 deletions(-)

diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index 163e3378fe17..9986f7912328 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -24,27 +24,165 @@
 #include <linux/cpufreq.h>
 #include <linux/cpumask.h>
 #include <linux/export.h>
+#include <linux/mutex.h>
 #include <linux/of_platform.h>
 #include <linux/pm_opp.h>
 #include <linux/slab.h>
 #include <linux/topology.h>
 #include <linux/types.h>
+#include <asm/bL_switcher.h>
 
 #include "arm_big_little.h"
 
 /* Currently we support only two clusters */
+#define A15_CLUSTER	0
+#define A7_CLUSTER	1
 #define MAX_CLUSTERS	2
 
+#ifdef CONFIG_BL_SWITCHER
+#define is_bL_switching_enabled()	true
+#else
+#define is_bL_switching_enabled()	false
+#endif
+
+#define ACTUAL_FREQ(cluster, freq)  ((cluster == A7_CLUSTER) ? freq << 1 : freq)
+#define VIRT_FREQ(cluster, freq)    ((cluster == A7_CLUSTER) ? freq >> 1 : freq)
+
 static struct cpufreq_arm_bL_ops *arm_bL_ops;
 static struct clk *clk[MAX_CLUSTERS];
-static struct cpufreq_frequency_table *freq_table[MAX_CLUSTERS];
-static atomic_t cluster_usage[MAX_CLUSTERS] = {ATOMIC_INIT(0), ATOMIC_INIT(0)};
+static struct cpufreq_frequency_table *freq_table[MAX_CLUSTERS + 1];
+static atomic_t cluster_usage[MAX_CLUSTERS + 1];
+
+static unsigned int clk_big_min;	/* (Big) clock frequencies */
+static unsigned int clk_little_max;	/* Maximum clock frequency (Little) */
+
+static DEFINE_PER_CPU(unsigned int, physical_cluster);
+static DEFINE_PER_CPU(unsigned int, cpu_last_req_freq);
+
+static struct mutex cluster_lock[MAX_CLUSTERS];
+
+static inline int raw_cpu_to_cluster(int cpu)
+{
+	return topology_physical_package_id(cpu);
+}
+
+static inline int cpu_to_cluster(int cpu)
+{
+	return is_bL_switching_enabled() ?
+		MAX_CLUSTERS : raw_cpu_to_cluster(cpu);
+}
+
+static unsigned int find_cluster_maxfreq(int cluster)
+{
+	int j;
+	u32 max_freq = 0, cpu_freq;
+
+	for_each_online_cpu(j) {
+		cpu_freq = per_cpu(cpu_last_req_freq, j);
+
+		if ((cluster == per_cpu(physical_cluster, j)) &&
+				(max_freq < cpu_freq))
+			max_freq = cpu_freq;
+	}
+
+	pr_debug("%s: cluster: %d, max freq: %d\n", __func__, cluster,
+			max_freq);
+
+	return max_freq;
+}
+
+static unsigned int clk_get_cpu_rate(unsigned int cpu)
+{
+	u32 cur_cluster = per_cpu(physical_cluster, cpu);
+	u32 rate = clk_get_rate(clk[cur_cluster]) / 1000;
+
+	/* For switcher we use virtual A7 clock rates */
+	if (is_bL_switching_enabled())
+		rate = VIRT_FREQ(cur_cluster, rate);
+
+	pr_debug("%s: cpu: %d, cluster: %d, freq: %u\n", __func__, cpu,
+			cur_cluster, rate);
+
+	return rate;
+}
+
+static unsigned int bL_cpufreq_get_rate(unsigned int cpu)
+{
+	if (is_bL_switching_enabled()) {
+		pr_debug("%s: freq: %d\n", __func__, per_cpu(cpu_last_req_freq,
+					cpu));
+
+		return per_cpu(cpu_last_req_freq, cpu);
+	} else {
+		return clk_get_cpu_rate(cpu);
+	}
+}
 
-static unsigned int bL_cpufreq_get(unsigned int cpu)
+static unsigned int
+bL_cpufreq_set_rate(u32 cpu, u32 old_cluster, u32 new_cluster, u32 rate)
 {
-	u32 cur_cluster = cpu_to_cluster(cpu);
+	u32 new_rate, prev_rate;
+	int ret;
+	bool bLs = is_bL_switching_enabled();
+
+	mutex_lock(&cluster_lock[new_cluster]);
+
+	if (bLs) {
+		prev_rate = per_cpu(cpu_last_req_freq, cpu);
+		per_cpu(cpu_last_req_freq, cpu) = rate;
+		per_cpu(physical_cluster, cpu) = new_cluster;
+
+		new_rate = find_cluster_maxfreq(new_cluster);
+		new_rate = ACTUAL_FREQ(new_cluster, new_rate);
+	} else {
+		new_rate = rate;
+	}
+
+	pr_debug("%s: cpu: %d, old cluster: %d, new cluster: %d, freq: %d\n",
+			__func__, cpu, old_cluster, new_cluster, new_rate);
+
+	ret = clk_set_rate(clk[new_cluster], new_rate * 1000);
+	if (WARN_ON(ret)) {
+		pr_err("clk_set_rate failed: %d, new cluster: %d\n", ret,
+				new_cluster);
+		if (bLs) {
+			per_cpu(cpu_last_req_freq, cpu) = prev_rate;
+			per_cpu(physical_cluster, cpu) = old_cluster;
+		}
+
+		mutex_unlock(&cluster_lock[new_cluster]);
+
+		return ret;
+	}
+
+	mutex_unlock(&cluster_lock[new_cluster]);
+
+	/* Recalc freq for old cluster when switching clusters */
+	if (old_cluster != new_cluster) {
+		pr_debug("%s: cpu: %d, old cluster: %d, new cluster: %d\n",
+				__func__, cpu, old_cluster, new_cluster);
+
+		/* Switch cluster */
+		bL_switch_request(cpu, new_cluster);
+
+		mutex_lock(&cluster_lock[old_cluster]);
 
-	return clk_get_rate(clk[cur_cluster]) / 1000;
+		/* Set freq of old cluster if there are cpus left on it */
+		new_rate = find_cluster_maxfreq(old_cluster);
+		new_rate = ACTUAL_FREQ(old_cluster, new_rate);
+
+		if (new_rate) {
+			pr_debug("%s: Updating rate of old cluster: %d, to freq: %d\n",
+					__func__, old_cluster, new_rate);
+
+			if (clk_set_rate(clk[old_cluster], new_rate * 1000))
+				pr_err("%s: clk_set_rate failed: %d, old cluster: %d\n",
+						__func__, ret, old_cluster);
+		}
+		mutex_unlock(&cluster_lock[old_cluster]);
+	}
+
+	return 0;
 }
 
 /* Set clock frequency */
@@ -52,63 +190,164 @@ static int bL_cpufreq_set_target(struct cpufreq_policy *policy,
 		unsigned int index)
 {
 	struct cpufreq_freqs freqs;
-	u32 cpu = policy->cpu, cur_cluster;
+	u32 cpu = policy->cpu, cur_cluster, new_cluster, actual_cluster;
 	int ret = 0;
 
-	cur_cluster = cpu_to_cluster(policy->cpu);
+	cur_cluster = cpu_to_cluster(cpu);
+	new_cluster = actual_cluster = per_cpu(physical_cluster, cpu);
 
-	freqs.old = bL_cpufreq_get(policy->cpu);
+	freqs.old = bL_cpufreq_get_rate(cpu);
 	freqs.new = freq_table[cur_cluster][index].frequency;
 
 	pr_debug("%s: cpu: %d, cluster: %d, oldfreq: %d, target freq: %d, new freq: %d\n",
 			__func__, cpu, cur_cluster, freqs.old, freqs.new,
 			freqs.new);
 
+	if (is_bL_switching_enabled()) {
+		if ((actual_cluster == A15_CLUSTER) &&
+				(freqs.new < clk_big_min)) {
+			new_cluster = A7_CLUSTER;
+		} else if ((actual_cluster == A7_CLUSTER) &&
+				(freqs.new > clk_little_max)) {
+			new_cluster = A15_CLUSTER;
+		}
+	}
+
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
 
-	ret = clk_set_rate(clk[cur_cluster], freqs.new * 1000);
-	if (ret) {
-		pr_err("clk_set_rate failed: %d\n", ret);
+	ret = bL_cpufreq_set_rate(cpu, actual_cluster, new_cluster, freqs.new);
+	if (ret)
 		freqs.new = freqs.old;
-	}
 
 	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
 
 	return ret;
 }
 
+static inline u32 get_table_count(struct cpufreq_frequency_table *table)
+{
+	int count;
+
+	for (count = 0; table[count].frequency != CPUFREQ_TABLE_END; count++)
+		;
+
+	return count;
+}
+
+/* get the minimum frequency in the cpufreq_frequency_table */
+static inline u32 get_table_min(struct cpufreq_frequency_table *table)
+{
+	int i;
+	uint32_t min_freq = ~0;
+	for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++)
+		if (table[i].frequency < min_freq)
+			min_freq = table[i].frequency;
+	return min_freq;
+}
+
+/* get the maximum frequency in the cpufreq_frequency_table */
+static inline u32 get_table_max(struct cpufreq_frequency_table *table)
+{
+	int i;
+	uint32_t max_freq = 0;
+	for (i = 0; (table[i].frequency != CPUFREQ_TABLE_END); i++)
+		if (table[i].frequency > max_freq)
+			max_freq = table[i].frequency;
+	return max_freq;
+}
+
+static int merge_cluster_tables(void)
+{
+	int i, j, k = 0, count = 1;
+	struct cpufreq_frequency_table *table;
+
+	for (i = 0; i < MAX_CLUSTERS; i++)
+		count += get_table_count(freq_table[i]);
+
+	table = kzalloc(sizeof(*table) * count, GFP_KERNEL);
+	if (!table)
+		return -ENOMEM;
+
+	freq_table[MAX_CLUSTERS] = table;
+
+	/* Add in reverse order to get freqs in increasing order */
+	for (i = MAX_CLUSTERS - 1; i >= 0; i--) {
+		for (j = 0; freq_table[i][j].frequency != CPUFREQ_TABLE_END;
+				j++) {
+			table[k].frequency = VIRT_FREQ(i,
+					freq_table[i][j].frequency);
+			pr_debug("%s: index: %d, freq: %d\n", __func__, k,
+					table[k].frequency);
+			k++;
+		}
+	}
+
+	table[k].driver_data = k;
+	table[k].frequency = CPUFREQ_TABLE_END;
+
+	pr_debug("%s: End, table: %p, count: %d\n", __func__, table, k);
+
+	return 0;
+}
+
+static void _put_cluster_clk_and_freq_table(struct device *cpu_dev)
+{
+	u32 cluster = raw_cpu_to_cluster(cpu_dev->id);
+
+	if (!freq_table[cluster])
+		return;
+
+	clk_put(clk[cluster]);
+	dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]);
+	dev_dbg(cpu_dev, "%s: cluster: %d\n", __func__, cluster);
+}
+
 static void put_cluster_clk_and_freq_table(struct device *cpu_dev)
 {
 	u32 cluster = cpu_to_cluster(cpu_dev->id);
+	int i;
+
+	if (atomic_dec_return(&cluster_usage[cluster]))
+		return;
+
+	if (cluster < MAX_CLUSTERS)
+		return _put_cluster_clk_and_freq_table(cpu_dev);
 
-	if (!atomic_dec_return(&cluster_usage[cluster])) {
-		clk_put(clk[cluster]);
-		dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]);
-		dev_dbg(cpu_dev, "%s: cluster: %d\n", __func__, cluster);
+	for_each_present_cpu(i) {
+		struct device *cdev = get_cpu_device(i);
+		if (!cdev) {
+			pr_err("%s: failed to get cpu%d device\n", __func__, i);
+			return;
+		}
+
+		_put_cluster_clk_and_freq_table(cdev);
 	}
+
+	/* free virtual table */
+	kfree(freq_table[cluster]);
 }
 
-static int get_cluster_clk_and_freq_table(struct device *cpu_dev)
+static int _get_cluster_clk_and_freq_table(struct device *cpu_dev)
 {
-	u32 cluster = cpu_to_cluster(cpu_dev->id);
+	u32 cluster = raw_cpu_to_cluster(cpu_dev->id);
 	char name[14] = "cpu-cluster.";
 	int ret;
 
-	if (atomic_inc_return(&cluster_usage[cluster]) != 1)
+	if (freq_table[cluster])
 		return 0;
 
 	ret = arm_bL_ops->init_opp_table(cpu_dev);
 	if (ret) {
 		dev_err(cpu_dev, "%s: init_opp_table failed, cpu: %d, err: %d\n",
 				__func__, cpu_dev->id, ret);
-		goto atomic_dec;
+		goto out;
 	}
 
 	ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table[cluster]);
 	if (ret) {
 		dev_err(cpu_dev, "%s: failed to init cpufreq table, cpu: %d, err: %d\n",
 				__func__, cpu_dev->id, ret);
-		goto atomic_dec;
+		goto out;
 	}
 
 	name[12] = cluster + '0';
@@ -125,13 +364,72 @@ static int get_cluster_clk_and_freq_table(struct device *cpu_dev)
 	ret = PTR_ERR(clk[cluster]);
 	dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]);
 
-atomic_dec:
-	atomic_dec(&cluster_usage[cluster]);
+out:
 	dev_err(cpu_dev, "%s: Failed to get data for cluster: %d\n", __func__,
 			cluster);
 	return ret;
 }
 
+static int get_cluster_clk_and_freq_table(struct device *cpu_dev)
+{
+	u32 cluster = cpu_to_cluster(cpu_dev->id);
+	int i, ret;
+
+	if (atomic_inc_return(&cluster_usage[cluster]) != 1)
+		return 0;
+
+	if (cluster < MAX_CLUSTERS) {
+		ret = _get_cluster_clk_and_freq_table(cpu_dev);
+		if (ret)
+			atomic_dec(&cluster_usage[cluster]);
+		return ret;
+	}
+
+	/*
+	 * Get data for all clusters and fill virtual cluster with a merge of
+	 * both
+	 */
+	for_each_present_cpu(i) {
+		struct device *cdev = get_cpu_device(i);
+		if (!cdev) {
+			pr_err("%s: failed to get cpu%d device\n", __func__, i);
+			return -ENODEV;
+		}
+
+		ret = _get_cluster_clk_and_freq_table(cdev);
+		if (ret)
+			goto put_clusters;
+	}
+
+	ret = merge_cluster_tables();
+	if (ret)
+		goto put_clusters;
+
+	/* Assuming 2 cluster, set clk_big_min and clk_little_max */
+	clk_big_min = get_table_min(freq_table[0]);
+	clk_little_max = VIRT_FREQ(1, get_table_max(freq_table[1]));
+
+	pr_debug("%s: cluster: %d, clk_big_min: %d, clk_little_max: %d\n",
+			__func__, cluster, clk_big_min, clk_little_max);
+
+	return 0;
+
+put_clusters:
+	for_each_present_cpu(i) {
+		struct device *cdev = get_cpu_device(i);
+		if (!cdev) {
+			pr_err("%s: failed to get cpu%d device\n", __func__, i);
+			return -ENODEV;
+		}
+
+		_put_cluster_clk_and_freq_table(cdev);
+	}
+
+	atomic_dec(&cluster_usage[cluster]);
+
+	return ret;
+}
+
 /* Per-CPU initialization */
 static int bL_cpufreq_init(struct cpufreq_policy *policy)
 {
@@ -158,13 +456,23 @@ static int bL_cpufreq_init(struct cpufreq_policy *policy)
 		return ret;
 	}
 
+	if (cur_cluster < MAX_CLUSTERS) {
+		cpumask_copy(policy->cpus, topology_core_cpumask(policy->cpu));
+
+		per_cpu(physical_cluster, policy->cpu) = cur_cluster;
+	} else {
+		/* Assumption: during init, we are always running on A15 */
+		per_cpu(physical_cluster, policy->cpu) = A15_CLUSTER;
+	}
+
 	if (arm_bL_ops->get_transition_latency)
 		policy->cpuinfo.transition_latency =
 			arm_bL_ops->get_transition_latency(cpu_dev);
 	else
 		policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
 
-	cpumask_copy(policy->cpus, topology_core_cpumask(policy->cpu));
+	if (is_bL_switching_enabled())
+		per_cpu(cpu_last_req_freq, policy->cpu) = clk_get_cpu_rate(policy->cpu);
 
 	dev_info(cpu_dev, "%s: CPU %d initialized\n", __func__, policy->cpu);
 	return 0;
@@ -194,7 +502,7 @@ static struct cpufreq_driver bL_cpufreq_driver = {
 					CPUFREQ_HAVE_GOVERNOR_PER_POLICY,
 	.verify			= cpufreq_generic_frequency_table_verify,
 	.target_index		= bL_cpufreq_set_target,
-	.get			= bL_cpufreq_get,
+	.get			= bL_cpufreq_get_rate,
 	.init			= bL_cpufreq_init,
 	.exit			= bL_cpufreq_exit,
 	.attr			= cpufreq_generic_attr,
@@ -202,7 +510,7 @@ static struct cpufreq_driver bL_cpufreq_driver = {
 
 int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops)
 {
-	int ret;
+	int ret, i;
 
 	if (arm_bL_ops) {
 		pr_debug("%s: Already registered: %s, exiting\n", __func__,
@@ -217,6 +525,9 @@ int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops)
 
 	arm_bL_ops = ops;
 
+	for (i = 0; i < MAX_CLUSTERS; i++)
+		mutex_init(&cluster_lock[i]);
+
 	ret = cpufreq_register_driver(&bL_cpufreq_driver);
 	if (ret) {
 		pr_info("%s: Failed registering platform driver: %s, err: %d\n",
diff --git a/drivers/cpufreq/arm_big_little.h b/drivers/cpufreq/arm_big_little.h
index 79b2ce17884d..70f18fc12d4a 100644
--- a/drivers/cpufreq/arm_big_little.h
+++ b/drivers/cpufreq/arm_big_little.h
@@ -34,11 +34,6 @@ struct cpufreq_arm_bL_ops {
 	int (*init_opp_table)(struct device *cpu_dev);
 };
 
-static inline int cpu_to_cluster(int cpu)
-{
-	return topology_physical_package_id(cpu);
-}
-
 int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops);
 void bL_cpufreq_unregister(struct cpufreq_arm_bL_ops *ops);
 
-- 
cgit 


From 45cac118ffd7c9920b3d85bf551c2205674eb4f2 Mon Sep 17 00:00:00 2001
From: Nicolas Pitre <nicolas.pitre@linaro.org>
Date: Wed, 30 Oct 2013 15:44:41 -0400
Subject: cpufreq: arm_big_little: reconfigure switcher behavior at run time

The b.L switcher can be turned on/off at run time.  It is therefore
necessary to change the cpufreq driver behavior accordingly.

The driver must be unregistered/registered with the cpufreq core
to reconfigure freq tables for the virtual or actual CPUs. This is
accomplished via the b.L switcher notifier callback.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/arm_big_little.c | 54 +++++++++++++++++++++++++++++++++++++---
 1 file changed, 51 insertions(+), 3 deletions(-)

diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index 9986f7912328..71f1af93b585 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -40,9 +40,12 @@
 #define MAX_CLUSTERS	2
 
 #ifdef CONFIG_BL_SWITCHER
-#define is_bL_switching_enabled()	true
+static bool bL_switching_enabled;
+#define is_bL_switching_enabled()	bL_switching_enabled
+#define set_switching_enabled(x)	(bL_switching_enabled = (x))
 #else
 #define is_bL_switching_enabled()	false
+#define set_switching_enabled(x)	do { } while (0)
 #endif
 
 #define ACTUAL_FREQ(cluster, freq)  ((cluster == A7_CLUSTER) ? freq << 1 : freq)
@@ -508,6 +511,38 @@ static struct cpufreq_driver bL_cpufreq_driver = {
 	.attr			= cpufreq_generic_attr,
 };
 
+static int bL_cpufreq_switcher_notifier(struct notifier_block *nfb,
+					unsigned long action, void *_arg)
+{
+	pr_debug("%s: action: %ld\n", __func__, action);
+
+	switch (action) {
+	case BL_NOTIFY_PRE_ENABLE:
+	case BL_NOTIFY_PRE_DISABLE:
+		cpufreq_unregister_driver(&bL_cpufreq_driver);
+		break;
+
+	case BL_NOTIFY_POST_ENABLE:
+		set_switching_enabled(true);
+		cpufreq_register_driver(&bL_cpufreq_driver);
+		break;
+
+	case BL_NOTIFY_POST_DISABLE:
+		set_switching_enabled(false);
+		cpufreq_register_driver(&bL_cpufreq_driver);
+		break;
+
+	default:
+		return NOTIFY_DONE;
+	}
+
+	return NOTIFY_OK;
+}
+
+static struct notifier_block bL_switcher_notifier = {
+	.notifier_call = bL_cpufreq_switcher_notifier,
+};
+
 int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops)
 {
 	int ret, i;
@@ -525,6 +560,9 @@ int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops)
 
 	arm_bL_ops = ops;
 
+	ret = bL_switcher_get_enabled();
+	set_switching_enabled(ret);
+
 	for (i = 0; i < MAX_CLUSTERS; i++)
 		mutex_init(&cluster_lock[i]);
 
@@ -534,10 +572,17 @@ int bL_cpufreq_register(struct cpufreq_arm_bL_ops *ops)
 				__func__, ops->name, ret);
 		arm_bL_ops = NULL;
 	} else {
-		pr_info("%s: Registered platform driver: %s\n", __func__,
-				ops->name);
+		ret = bL_switcher_register_notifier(&bL_switcher_notifier);
+		if (ret) {
+			cpufreq_unregister_driver(&bL_cpufreq_driver);
+			arm_bL_ops = NULL;
+		} else {
+			pr_info("%s: Registered platform driver: %s\n",
+					__func__, ops->name);
+		}
 	}
 
+	bL_switcher_put_enabled();
 	return ret;
 }
 EXPORT_SYMBOL_GPL(bL_cpufreq_register);
@@ -550,7 +595,10 @@ void bL_cpufreq_unregister(struct cpufreq_arm_bL_ops *ops)
 		return;
 	}
 
+	bL_switcher_get_enabled();
+	bL_switcher_unregister_notifier(&bL_switcher_notifier);
 	cpufreq_unregister_driver(&bL_cpufreq_driver);
+	bL_switcher_put_enabled();
 	pr_info("%s: Un-registered platform driver: %s\n", __func__,
 			arm_bL_ops->name);
 	arm_bL_ops = NULL;
-- 
cgit 


From e0a261a207fb5bcbc6cc5db3b51a96d9cbe9b97e Mon Sep 17 00:00:00 2001
From: Dirk Brandewie <dirk.j.brandewie@intel.com>
Date: Wed, 30 Oct 2013 08:38:32 -0700
Subject: cpufreq/intel_pstate: Add static declarations to internal functions

Fixes warnings reported by kbuild test robot

sparse warnings: (new ones prefixed by >>)

drivers/cpufreq/intel_pstate.c:729:6: sparse: symbol 'copy_pid_params' was not declared. Should it be static?
drivers/cpufreq/intel_pstate.c:739:6: sparse: symbol 'copy_cpu_funcs' was not declared. Should it be static?

Signed-off-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/intel_pstate.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 27c2753909fe..81e0062a6d2a 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -761,7 +761,7 @@ static int intel_pstate_msrs_not_valid(void)
 	return 0;
 }
 
-void copy_pid_params(struct pstate_adjust_policy *policy)
+static void copy_pid_params(struct pstate_adjust_policy *policy)
 {
 	pid_params.sample_rate_ms = policy->sample_rate_ms;
 	pid_params.p_gain_pct = policy->p_gain_pct;
@@ -771,7 +771,7 @@ void copy_pid_params(struct pstate_adjust_policy *policy)
 	pid_params.setpoint = policy->setpoint;
 }
 
-void copy_cpu_funcs(struct pstate_funcs *funcs)
+static void copy_cpu_funcs(struct pstate_funcs *funcs)
 {
 	pstate_funcs.get_max   = funcs->get_max;
 	pstate_funcs.get_min   = funcs->get_min;
-- 
cgit 


From 7dbf694db6ac7c759599316d50d7050efcbd512a Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Tue, 29 Oct 2013 18:56:06 +0530
Subject: cpufreq: distinguish drivers that do asynchronous notifications

There are few special cases like exynos5440 which doesn't send POSTCHANGE
notification from their ->target() routine and call some kind of bottom halves
for doing this work, work/tasklet/etc.. From which they finally send POSTCHANGE
notification.

Its better if we distinguish them from other cpufreq drivers in some way so that
core can handle them specially. So this patch introduces another flag:
CPUFREQ_ASYNC_NOTIFICATION, which will be set by such drivers.

This also changes exynos5440-cpufreq.c and powernow-k8 in order to set this
flag.

Acked-by: Amit Daniel Kachhap <amit.daniel@samsung.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/exynos5440-cpufreq.c | 2 +-
 drivers/cpufreq/powernow-k8.c        | 1 +
 include/linux/cpufreq.h              | 7 +++++++
 3 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c
index 1bf9b060d522..76bef8b078cb 100644
--- a/drivers/cpufreq/exynos5440-cpufreq.c
+++ b/drivers/cpufreq/exynos5440-cpufreq.c
@@ -312,7 +312,7 @@ static int exynos_cpufreq_cpu_init(struct cpufreq_policy *policy)
 }
 
 static struct cpufreq_driver exynos_driver = {
-	.flags		= CPUFREQ_STICKY,
+	.flags		= CPUFREQ_STICKY | CPUFREQ_ASYNC_NOTIFICATION,
 	.verify		= cpufreq_generic_frequency_table_verify,
 	.target_index	= exynos_target,
 	.get		= exynos_getspeed,
diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c
index 62a1ce47d3df..0023c7d40a51 100644
--- a/drivers/cpufreq/powernow-k8.c
+++ b/drivers/cpufreq/powernow-k8.c
@@ -1204,6 +1204,7 @@ out:
 }
 
 static struct cpufreq_driver cpufreq_amd64_driver = {
+	.flags		= CPUFREQ_ASYNC_NOTIFICATION,
 	.verify		= cpufreq_generic_frequency_table_verify,
 	.target_index	= powernowk8_target,
 	.bios_limit	= acpi_processor_get_bios_limit,
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 93a8c34d6c7f..5bd6ab9b0c27 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -237,6 +237,13 @@ struct cpufreq_driver {
  */
 #define CPUFREQ_HAVE_GOVERNOR_PER_POLICY (1 << 3)
 
+/*
+ * Driver will do POSTCHANGE notifications from outside of their ->target()
+ * routine and so must set cpufreq_driver->flags with this flag, so that core
+ * can handle them specially.
+ */
+#define CPUFREQ_ASYNC_NOTIFICATION  (1 << 4)
+
 int cpufreq_register_driver(struct cpufreq_driver *driver_data);
 int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);
 
-- 
cgit 


From d4019f0a92ab802f385cc9c8ad3ab7b5449712cb Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Wed, 14 Aug 2013 19:38:24 +0530
Subject: cpufreq: move freq change notifications to cpufreq core

Most of the drivers do following in their ->target_index() routines:

	struct cpufreq_freqs freqs;
	freqs.old = old freq...
	freqs.new = new freq...

	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);

	/* Change rate here */

	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);

This is replicated over all cpufreq drivers today and there doesn't exists a
good enough reason why this shouldn't be moved to cpufreq core instead.

There are few special cases though, like exynos5440, which doesn't do everything
on the call to ->target_index() routine and call some kind of bottom halves for
doing this work, work/tasklet/etc..

They may continue doing notification from their own code as flag:
CPUFREQ_ASYNC_NOTIFICATION is already set for them.

All drivers are also modified in this patch to avoid breaking 'git bisect', as
double notification would happen otherwise.

Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Russell King <linux@arm.linux.org.uk>
Acked-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Reviewed-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/acpi-cpufreq.c         | 14 ++-------
 drivers/cpufreq/arm_big_little.c       | 24 ++++-----------
 drivers/cpufreq/at32ap-cpufreq.c       | 22 ++++++--------
 drivers/cpufreq/blackfin-cpufreq.c     | 22 +++++---------
 drivers/cpufreq/cpufreq-cpu0.c         | 33 ++++++++-------------
 drivers/cpufreq/cpufreq.c              | 40 +++++++++++++++++++++++--
 drivers/cpufreq/cris-artpec3-cpufreq.c |  8 -----
 drivers/cpufreq/cris-etraxfs-cpufreq.c |  8 -----
 drivers/cpufreq/davinci-cpufreq.c      | 30 +++++++------------
 drivers/cpufreq/dbx500-cpufreq.c       | 22 +-------------
 drivers/cpufreq/e_powersaver.c         | 23 ++-------------
 drivers/cpufreq/elanfreq.c             | 13 --------
 drivers/cpufreq/exynos-cpufreq.c       | 28 +++++-------------
 drivers/cpufreq/ia64-acpi-cpufreq.c    | 19 ------------
 drivers/cpufreq/imx6q-cpufreq.c        | 37 ++++++++++-------------
 drivers/cpufreq/kirkwood-cpufreq.c     | 54 +++++++++++++---------------------
 drivers/cpufreq/loongson2_cpufreq.c    | 16 ----------
 drivers/cpufreq/maple-cpufreq.c        | 18 +-----------
 drivers/cpufreq/omap-cpufreq.c         | 38 ++++++++----------------
 drivers/cpufreq/p4-clockmod.c          | 10 -------
 drivers/cpufreq/pasemi-cpufreq.c       | 14 +--------
 drivers/cpufreq/pmac32-cpufreq.c       | 20 +++----------
 drivers/cpufreq/pmac64-cpufreq.c       | 18 +-----------
 drivers/cpufreq/ppc-corenet-cpufreq.c  | 19 +-----------
 drivers/cpufreq/ppc_cbe_cpufreq.c      | 19 +-----------
 drivers/cpufreq/pxa2xx-cpufreq.c       | 27 ++++-------------
 drivers/cpufreq/pxa3xx-cpufreq.c       | 12 --------
 drivers/cpufreq/s3c2416-cpufreq.c      | 21 +++----------
 drivers/cpufreq/s3c64xx-cpufreq.c      | 48 ++++++++++--------------------
 drivers/cpufreq/s5pv210-cpufreq.c      | 16 ++++------
 drivers/cpufreq/sa1100-cpufreq.c       | 17 ++++-------
 drivers/cpufreq/sa1110-cpufreq.c       | 12 ++------
 drivers/cpufreq/sc520_freq.c           | 11 -------
 drivers/cpufreq/sparc-us2e-cpufreq.c   |  7 -----
 drivers/cpufreq/sparc-us3-cpufreq.c    |  7 -----
 drivers/cpufreq/spear-cpufreq.c        | 13 +-------
 drivers/cpufreq/speedstep-centrino.c   | 21 +------------
 drivers/cpufreq/speedstep-ich.c        |  9 ------
 drivers/cpufreq/speedstep-smi.c        |  7 -----
 drivers/cpufreq/tegra-cpufreq.c        | 25 ++++------------
 40 files changed, 198 insertions(+), 624 deletions(-)

diff --git a/drivers/cpufreq/acpi-cpufreq.c b/drivers/cpufreq/acpi-cpufreq.c
index 889cec0a9022..3c060dd50637 100644
--- a/drivers/cpufreq/acpi-cpufreq.c
+++ b/drivers/cpufreq/acpi-cpufreq.c
@@ -428,14 +428,10 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy,
 {
 	struct acpi_cpufreq_data *data = per_cpu(acfreq_data, policy->cpu);
 	struct acpi_processor_performance *perf;
-	struct cpufreq_freqs freqs;
 	struct drv_cmd cmd;
 	unsigned int next_perf_state = 0; /* Index into perf table */
 	int result = 0;
 
-	pr_debug("acpi_cpufreq_target %d (%d)\n",
-			data->freq_table[index].frequency, policy->cpu);
-
 	if (unlikely(data == NULL ||
 	     data->acpi_data == NULL || data->freq_table == NULL)) {
 		return -ENODEV;
@@ -483,23 +479,17 @@ static int acpi_cpufreq_target(struct cpufreq_policy *policy,
 	else
 		cmd.mask = cpumask_of(policy->cpu);
 
-	freqs.old = perf->states[perf->state].core_frequency * 1000;
-	freqs.new = data->freq_table[index].frequency;
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	drv_write(&cmd);
 
 	if (acpi_pstate_strict) {
-		if (!check_freqs(cmd.mask, freqs.new, data)) {
+		if (!check_freqs(cmd.mask, data->freq_table[index].frequency,
+					data)) {
 			pr_debug("acpi_cpufreq_target failed (%d)\n",
 				policy->cpu);
 			result = -EAGAIN;
-			freqs.new = freqs.old;
 		}
 	}
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
 	if (!result)
 		perf->state = next_perf_state;
 
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index 71f1af93b585..5519933813ea 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -192,39 +192,25 @@ bL_cpufreq_set_rate(u32 cpu, u32 old_cluster, u32 new_cluster, u32 rate)
 static int bL_cpufreq_set_target(struct cpufreq_policy *policy,
 		unsigned int index)
 {
-	struct cpufreq_freqs freqs;
 	u32 cpu = policy->cpu, cur_cluster, new_cluster, actual_cluster;
-	int ret = 0;
+	unsigned int freqs_new;
 
 	cur_cluster = cpu_to_cluster(cpu);
 	new_cluster = actual_cluster = per_cpu(physical_cluster, cpu);
 
-	freqs.old = bL_cpufreq_get_rate(cpu);
-	freqs.new = freq_table[cur_cluster][index].frequency;
-
-	pr_debug("%s: cpu: %d, cluster: %d, oldfreq: %d, target freq: %d, new freq: %d\n",
-			__func__, cpu, cur_cluster, freqs.old, freqs.new,
-			freqs.new);
+	freqs_new = freq_table[cur_cluster][index].frequency;
 
 	if (is_bL_switching_enabled()) {
 		if ((actual_cluster == A15_CLUSTER) &&
-				(freqs.new < clk_big_min)) {
+				(freqs_new < clk_big_min)) {
 			new_cluster = A7_CLUSTER;
 		} else if ((actual_cluster == A7_CLUSTER) &&
-				(freqs.new > clk_little_max)) {
+				(freqs_new > clk_little_max)) {
 			new_cluster = A15_CLUSTER;
 		}
 	}
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
-	ret = bL_cpufreq_set_rate(cpu, actual_cluster, new_cluster, freqs.new);
-	if (ret)
-		freqs.new = freqs.old;
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
-	return ret;
+	return bL_cpufreq_set_rate(cpu, actual_cluster, new_cluster, freqs_new);
 }
 
 static inline u32 get_table_count(struct cpufreq_frequency_table *table)
diff --git a/drivers/cpufreq/at32ap-cpufreq.c b/drivers/cpufreq/at32ap-cpufreq.c
index 81d07527bde6..856ad80418ae 100644
--- a/drivers/cpufreq/at32ap-cpufreq.c
+++ b/drivers/cpufreq/at32ap-cpufreq.c
@@ -37,27 +37,23 @@ static unsigned long	loops_per_jiffy_ref;
 
 static int at32_set_target(struct cpufreq_policy *policy, unsigned int index)
 {
-	struct cpufreq_freqs freqs;
+	unsigned int old_freq, new_freq;
 
-	freqs.old = at32_get_speed(0);
-	freqs.new = freq_table[index].frequency;
+	old_freq = at32_get_speed(0);
+	new_freq = freq_table[index].frequency;
 
 	if (!ref_freq) {
-		ref_freq = freqs.old;
+		ref_freq = old_freq;
 		loops_per_jiffy_ref = boot_cpu_data.loops_per_jiffy;
 	}
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-	if (freqs.old < freqs.new)
+	if (old_freq < new_freq)
 		boot_cpu_data.loops_per_jiffy = cpufreq_scale(
-				loops_per_jiffy_ref, ref_freq, freqs.new);
-	clk_set_rate(cpuclk, freqs.new * 1000);
-	if (freqs.new < freqs.old)
+				loops_per_jiffy_ref, ref_freq, new_freq);
+	clk_set_rate(cpuclk, new_freq * 1000);
+	if (new_freq < old_freq)
 		boot_cpu_data.loops_per_jiffy = cpufreq_scale(
-				loops_per_jiffy_ref, ref_freq, freqs.new);
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
-	pr_debug("cpufreq: set frequency %u Hz\n", freqs.new * 1000);
+				loops_per_jiffy_ref, ref_freq, new_freq);
 
 	return 0;
 }
diff --git a/drivers/cpufreq/blackfin-cpufreq.c b/drivers/cpufreq/blackfin-cpufreq.c
index 12528b28d45d..e9e63fc9c2c9 100644
--- a/drivers/cpufreq/blackfin-cpufreq.c
+++ b/drivers/cpufreq/blackfin-cpufreq.c
@@ -132,27 +132,23 @@ static int bfin_target(struct cpufreq_policy *policy, unsigned int index)
 #ifndef CONFIG_BF60x
 	unsigned int plldiv;
 #endif
-	struct cpufreq_freqs freqs;
 	static unsigned long lpj_ref;
 	static unsigned int  lpj_ref_freq;
+	unsigned int old_freq, new_freq;
 	int ret = 0;
 
 #if defined(CONFIG_CYCLES_CLOCKSOURCE)
 	cycles_t cycles;
 #endif
 
-	freqs.old = bfin_getfreq_khz(0);
-	freqs.new = bfin_freq_table[index].frequency;
+	old_freq = bfin_getfreq_khz(0);
+	new_freq = bfin_freq_table[index].frequency;
 
-	pr_debug("cpufreq: changing cclk to %lu; target = %u, oldfreq = %u\n",
-			freqs.new, freqs.new, freqs.old);
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
 #ifndef CONFIG_BF60x
 	plldiv = (bfin_read_PLL_DIV() & SSEL) | dpm_state_table[index].csel;
 	bfin_write_PLL_DIV(plldiv);
 #else
-	ret = cpu_set_cclk(policy->cpu, freqs.new * 1000);
+	ret = cpu_set_cclk(policy->cpu, new_freq * 1000);
 	if (ret != 0) {
 		WARN_ONCE(ret, "cpufreq set freq failed %d\n", ret);
 		return ret;
@@ -168,17 +164,13 @@ static int bfin_target(struct cpufreq_policy *policy, unsigned int index)
 #endif
 	if (!lpj_ref_freq) {
 		lpj_ref = loops_per_jiffy;
-		lpj_ref_freq = freqs.old;
+		lpj_ref_freq = old_freq;
 	}
-	if (freqs.new != freqs.old) {
+	if (new_freq != old_freq) {
 		loops_per_jiffy = cpufreq_scale(lpj_ref,
-				lpj_ref_freq, freqs.new);
+				lpj_ref_freq, new_freq);
 	}
 
-	/* TODO: just test case for cycles clock source, remove later */
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
-	pr_debug("cpufreq: done\n");
 	return ret;
 }
 
diff --git a/drivers/cpufreq/cpufreq-cpu0.c b/drivers/cpufreq/cpufreq-cpu0.c
index 4dbe7efd86e5..d4585ce2346c 100644
--- a/drivers/cpufreq/cpufreq-cpu0.c
+++ b/drivers/cpufreq/cpufreq-cpu0.c
@@ -37,20 +37,19 @@ static unsigned int cpu0_get_speed(unsigned int cpu)
 
 static int cpu0_set_target(struct cpufreq_policy *policy, unsigned int index)
 {
-	struct cpufreq_freqs freqs;
 	struct dev_pm_opp *opp;
 	unsigned long volt = 0, volt_old = 0, tol = 0;
+	unsigned int old_freq, new_freq;
 	long freq_Hz, freq_exact;
 	int ret;
 
 	freq_Hz = clk_round_rate(cpu_clk, freq_table[index].frequency * 1000);
 	if (freq_Hz < 0)
 		freq_Hz = freq_table[index].frequency * 1000;
-	freq_exact = freq_Hz;
-	freqs.new = freq_Hz / 1000;
-	freqs.old = clk_get_rate(cpu_clk) / 1000;
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
+	freq_exact = freq_Hz;
+	new_freq = freq_Hz / 1000;
+	old_freq = clk_get_rate(cpu_clk) / 1000;
 
 	if (!IS_ERR(cpu_reg)) {
 		rcu_read_lock();
@@ -58,9 +57,7 @@ static int cpu0_set_target(struct cpufreq_policy *policy, unsigned int index)
 		if (IS_ERR(opp)) {
 			rcu_read_unlock();
 			pr_err("failed to find OPP for %ld\n", freq_Hz);
-			freqs.new = freqs.old;
-			ret = PTR_ERR(opp);
-			goto post_notify;
+			return PTR_ERR(opp);
 		}
 		volt = dev_pm_opp_get_voltage(opp);
 		rcu_read_unlock();
@@ -69,16 +66,15 @@ static int cpu0_set_target(struct cpufreq_policy *policy, unsigned int index)
 	}
 
 	pr_debug("%u MHz, %ld mV --> %u MHz, %ld mV\n",
-		 freqs.old / 1000, volt_old ? volt_old / 1000 : -1,
-		 freqs.new / 1000, volt ? volt / 1000 : -1);
+		 old_freq / 1000, volt_old ? volt_old / 1000 : -1,
+		 new_freq / 1000, volt ? volt / 1000 : -1);
 
 	/* scaling up?  scale voltage before frequency */
-	if (!IS_ERR(cpu_reg) && freqs.new > freqs.old) {
+	if (!IS_ERR(cpu_reg) && new_freq > old_freq) {
 		ret = regulator_set_voltage_tol(cpu_reg, volt, tol);
 		if (ret) {
 			pr_err("failed to scale voltage up: %d\n", ret);
-			freqs.new = freqs.old;
-			goto post_notify;
+			return ret;
 		}
 	}
 
@@ -87,23 +83,18 @@ static int cpu0_set_target(struct cpufreq_policy *policy, unsigned int index)
 		pr_err("failed to set clock rate: %d\n", ret);
 		if (!IS_ERR(cpu_reg))
 			regulator_set_voltage_tol(cpu_reg, volt_old, tol);
-		freqs.new = freqs.old;
-		goto post_notify;
+		return ret;
 	}
 
 	/* scaling down?  scale voltage after frequency */
-	if (!IS_ERR(cpu_reg) && freqs.new < freqs.old) {
+	if (!IS_ERR(cpu_reg) && new_freq < old_freq) {
 		ret = regulator_set_voltage_tol(cpu_reg, volt, tol);
 		if (ret) {
 			pr_err("failed to scale voltage down: %d\n", ret);
-			clk_set_rate(cpu_clk, freqs.old * 1000);
-			freqs.new = freqs.old;
+			clk_set_rate(cpu_clk, old_freq * 1000);
 		}
 	}
 
-post_notify:
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
 	return ret;
 }
 
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 6c9cbb9ebd1f..02d534da22dd 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -1669,6 +1669,8 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy,
 		retval = cpufreq_driver->target(policy, target_freq, relation);
 	else if (cpufreq_driver->target_index) {
 		struct cpufreq_frequency_table *freq_table;
+		struct cpufreq_freqs freqs;
+		bool notify;
 		int index;
 
 		freq_table = cpufreq_frequency_get_table(policy->cpu);
@@ -1684,10 +1686,42 @@ int __cpufreq_driver_target(struct cpufreq_policy *policy,
 			goto out;
 		}
 
-		if (freq_table[index].frequency == policy->cur)
+		if (freq_table[index].frequency == policy->cur) {
 			retval = 0;
-		else
-			retval = cpufreq_driver->target_index(policy, index);
+			goto out;
+		}
+
+		notify = !(cpufreq_driver->flags & CPUFREQ_ASYNC_NOTIFICATION);
+
+		if (notify) {
+			freqs.old = policy->cur;
+			freqs.new = freq_table[index].frequency;
+			freqs.flags = 0;
+
+			pr_debug("%s: cpu: %d, oldfreq: %u, new freq: %u\n",
+					__func__, policy->cpu, freqs.old,
+					freqs.new);
+
+			cpufreq_notify_transition(policy, &freqs,
+					CPUFREQ_PRECHANGE);
+		}
+
+		retval = cpufreq_driver->target_index(policy, index);
+		if (retval)
+			pr_err("%s: Failed to change cpu frequency: %d\n",
+					__func__, retval);
+
+		if (notify) {
+			/*
+			 * Notify with old freq in case we failed to change
+			 * frequency
+			 */
+			if (retval)
+				freqs.new = freqs.old;
+
+			cpufreq_notify_transition(policy, &freqs,
+					CPUFREQ_POSTCHANGE);
+		}
 	}
 
 out:
diff --git a/drivers/cpufreq/cris-artpec3-cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c
index 841857cf1562..86559040c54c 100644
--- a/drivers/cpufreq/cris-artpec3-cpufreq.c
+++ b/drivers/cpufreq/cris-artpec3-cpufreq.c
@@ -29,15 +29,9 @@ static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu)
 
 static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state)
 {
-	struct cpufreq_freqs freqs;
 	reg_clkgen_rw_clk_ctrl clk_ctrl;
 	clk_ctrl = REG_RD(clkgen, regi_clkgen, rw_clk_ctrl);
 
-	freqs.old = cris_freq_get_cpu_frequency(policy->cpu);
-	freqs.new = cris_freq_table[state].frequency;
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	local_irq_disable();
 
 	/* Even though we may be SMP they will share the same clock
@@ -50,8 +44,6 @@ static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state)
 
 	local_irq_enable();
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
 	return 0;
 }
 
diff --git a/drivers/cpufreq/cris-etraxfs-cpufreq.c b/drivers/cpufreq/cris-etraxfs-cpufreq.c
index c58811abd961..26d940d40b1d 100644
--- a/drivers/cpufreq/cris-etraxfs-cpufreq.c
+++ b/drivers/cpufreq/cris-etraxfs-cpufreq.c
@@ -29,15 +29,9 @@ static unsigned int cris_freq_get_cpu_frequency(unsigned int cpu)
 
 static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state)
 {
-	struct cpufreq_freqs freqs;
 	reg_config_rw_clk_ctrl clk_ctrl;
 	clk_ctrl = REG_RD(config, regi_config, rw_clk_ctrl);
 
-	freqs.old = cris_freq_get_cpu_frequency(policy->cpu);
-	freqs.new = cris_freq_table[state].frequency;
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	local_irq_disable();
 
 	/* Even though we may be SMP they will share the same clock
@@ -50,8 +44,6 @@ static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state)
 
 	local_irq_enable();
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
 	return 0;
 }
 
diff --git a/drivers/cpufreq/davinci-cpufreq.c b/drivers/cpufreq/davinci-cpufreq.c
index 1f5d8a569c77..5e8a854381b7 100644
--- a/drivers/cpufreq/davinci-cpufreq.c
+++ b/drivers/cpufreq/davinci-cpufreq.c
@@ -68,46 +68,36 @@ static unsigned int davinci_getspeed(unsigned int cpu)
 
 static int davinci_target(struct cpufreq_policy *policy, unsigned int idx)
 {
-	int ret = 0;
-	struct cpufreq_freqs freqs;
 	struct davinci_cpufreq_config *pdata = cpufreq.dev->platform_data;
 	struct clk *armclk = cpufreq.armclk;
+	unsigned int old_freq, new_freq;
+	int ret = 0;
 
-	freqs.old = davinci_getspeed(0);
-	freqs.new = pdata->freq_table[idx].frequency;
-
-	dev_dbg(cpufreq.dev, "transition: %u --> %u\n", freqs.old, freqs.new);
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
+	old_freq = davinci_getspeed(0);
+	new_freq = pdata->freq_table[idx].frequency;
 
 	/* if moving to higher frequency, up the voltage beforehand */
-	if (pdata->set_voltage && freqs.new > freqs.old) {
+	if (pdata->set_voltage && new_freq > old_freq) {
 		ret = pdata->set_voltage(idx);
 		if (ret)
-			goto out;
+			return ret;
 	}
 
 	ret = clk_set_rate(armclk, idx);
 	if (ret)
-		goto out;
+		return ret;
 
 	if (cpufreq.asyncclk) {
 		ret = clk_set_rate(cpufreq.asyncclk, cpufreq.asyncrate);
 		if (ret)
-			goto out;
+			return ret;
 	}
 
 	/* if moving to lower freq, lower the voltage after lowering freq */
-	if (pdata->set_voltage && freqs.new < freqs.old)
+	if (pdata->set_voltage && new_freq < old_freq)
 		pdata->set_voltage(idx);
 
-out:
-	if (ret)
-		freqs.new = freqs.old;
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
-	return ret;
+	return 0;
 }
 
 static int davinci_cpu_init(struct cpufreq_policy *policy)
diff --git a/drivers/cpufreq/dbx500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c
index 238b16976be1..0e67ab96321a 100644
--- a/drivers/cpufreq/dbx500-cpufreq.c
+++ b/drivers/cpufreq/dbx500-cpufreq.c
@@ -22,28 +22,8 @@ static struct clk *armss_clk;
 static int dbx500_cpufreq_target(struct cpufreq_policy *policy,
 				unsigned int index)
 {
-	struct cpufreq_freqs freqs;
-	int ret;
-
-	freqs.old = policy->cur;
-	freqs.new = freq_table[index].frequency;
-
-	/* pre-change notification */
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	/* update armss clk frequency */
-	ret = clk_set_rate(armss_clk, freqs.new * 1000);
-
-	if (ret) {
-		pr_err("dbx500-cpufreq: Failed to set armss_clk to %d Hz: error %d\n",
-		       freqs.new * 1000, ret);
-		freqs.new = freqs.old;
-	}
-
-	/* post change notification */
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
-	return ret;
+	return clk_set_rate(armss_clk, freq_table[index].frequency * 1000);
 }
 
 static unsigned int dbx500_cpufreq_getspeed(unsigned int cpu)
diff --git a/drivers/cpufreq/e_powersaver.c b/drivers/cpufreq/e_powersaver.c
index b39c4ef60a7a..9012b8bb6b64 100644
--- a/drivers/cpufreq/e_powersaver.c
+++ b/drivers/cpufreq/e_powersaver.c
@@ -107,15 +107,9 @@ static int eps_set_state(struct eps_cpu_data *centaur,
 			 struct cpufreq_policy *policy,
 			 u32 dest_state)
 {
-	struct cpufreq_freqs freqs;
 	u32 lo, hi;
-	int err = 0;
 	int i;
 
-	freqs.old = eps_get(policy->cpu);
-	freqs.new = centaur->fsb * ((dest_state >> 8) & 0xff);
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	/* Wait while CPU is busy */
 	rdmsr(MSR_IA32_PERF_STATUS, lo, hi);
 	i = 0;
@@ -124,8 +118,7 @@ static int eps_set_state(struct eps_cpu_data *centaur,
 		rdmsr(MSR_IA32_PERF_STATUS, lo, hi);
 		i++;
 		if (unlikely(i > 64)) {
-			err = -ENODEV;
-			goto postchange;
+			return -ENODEV;
 		}
 	}
 	/* Set new multiplier and voltage */
@@ -137,16 +130,10 @@ static int eps_set_state(struct eps_cpu_data *centaur,
 		rdmsr(MSR_IA32_PERF_STATUS, lo, hi);
 		i++;
 		if (unlikely(i > 64)) {
-			err = -ENODEV;
-			goto postchange;
+			return -ENODEV;
 		}
 	} while (lo & ((1 << 16) | (1 << 17)));
 
-	/* Return current frequency */
-postchange:
-	rdmsr(MSR_IA32_PERF_STATUS, lo, hi);
-	freqs.new = centaur->fsb * ((lo >> 8) & 0xff);
-
 #ifdef DEBUG
 	{
 	u8 current_multiplier, current_voltage;
@@ -161,11 +148,7 @@ postchange:
 		current_multiplier);
 	}
 #endif
-	if (err)
-		freqs.new = freqs.old;
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-	return err;
+	return 0;
 }
 
 static int eps_target(struct cpufreq_policy *policy, unsigned int index)
diff --git a/drivers/cpufreq/elanfreq.c b/drivers/cpufreq/elanfreq.c
index 4ab41539514f..de08acff5101 100644
--- a/drivers/cpufreq/elanfreq.c
+++ b/drivers/cpufreq/elanfreq.c
@@ -108,17 +108,6 @@ static unsigned int elanfreq_get_cpu_frequency(unsigned int cpu)
 static int elanfreq_target(struct cpufreq_policy *policy,
 			    unsigned int state)
 {
-	struct cpufreq_freqs    freqs;
-
-	freqs.old = elanfreq_get_cpu_frequency(0);
-	freqs.new = elan_multiplier[state].clock;
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
-	printk(KERN_INFO "elanfreq: attempting to set frequency to %i kHz\n",
-			elan_multiplier[state].clock);
-
-
 	/*
 	 * Access to the Elan's internal registers is indexed via
 	 * 0x22: Chip Setup & Control Register Index Register (CSCI)
@@ -149,8 +138,6 @@ static int elanfreq_target(struct cpufreq_policy *policy,
 	udelay(10000);
 	local_irq_enable();
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
 	return 0;
 }
 /*
diff --git a/drivers/cpufreq/exynos-cpufreq.c b/drivers/cpufreq/exynos-cpufreq.c
index 9982fcb82257..7b6dc06b1bd4 100644
--- a/drivers/cpufreq/exynos-cpufreq.c
+++ b/drivers/cpufreq/exynos-cpufreq.c
@@ -25,7 +25,6 @@
 static struct exynos_dvfs_info *exynos_info;
 
 static struct regulator *arm_regulator;
-static struct cpufreq_freqs freqs;
 
 static unsigned int locking_frequency;
 static bool frequency_locked;
@@ -59,18 +58,18 @@ static int exynos_cpufreq_scale(unsigned int target_freq)
 	struct cpufreq_policy *policy = cpufreq_cpu_get(0);
 	unsigned int arm_volt, safe_arm_volt = 0;
 	unsigned int mpll_freq_khz = exynos_info->mpll_freq_khz;
+	unsigned int old_freq;
 	int index, old_index;
 	int ret = 0;
 
-	freqs.old = policy->cur;
-	freqs.new = target_freq;
+	old_freq = policy->cur;
 
 	/*
 	 * The policy max have been changed so that we cannot get proper
 	 * old_index with cpufreq_frequency_table_target(). Thus, ignore
 	 * policy and get the index from the raw freqeuncy table.
 	 */
-	old_index = exynos_cpufreq_get_index(freqs.old);
+	old_index = exynos_cpufreq_get_index(old_freq);
 	if (old_index < 0) {
 		ret = old_index;
 		goto out;
@@ -95,17 +94,14 @@ static int exynos_cpufreq_scale(unsigned int target_freq)
 	}
 	arm_volt = volt_table[index];
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	/* When the new frequency is higher than current frequency */
-	if ((freqs.new > freqs.old) && !safe_arm_volt) {
+	if ((target_freq > old_freq) && !safe_arm_volt) {
 		/* Firstly, voltage up to increase frequency */
 		ret = regulator_set_voltage(arm_regulator, arm_volt, arm_volt);
 		if (ret) {
 			pr_err("%s: failed to set cpu voltage to %d\n",
 				__func__, arm_volt);
-			freqs.new = freqs.old;
-			goto post_notify;
+			return ret;
 		}
 	}
 
@@ -115,22 +111,15 @@ static int exynos_cpufreq_scale(unsigned int target_freq)
 		if (ret) {
 			pr_err("%s: failed to set cpu voltage to %d\n",
 				__func__, safe_arm_volt);
-			freqs.new = freqs.old;
-			goto post_notify;
+			return ret;
 		}
 	}
 
 	exynos_info->set_freq(old_index, index);
 
-post_notify:
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
-	if (ret)
-		goto out;
-
 	/* When the new frequency is lower than current frequency */
-	if ((freqs.new < freqs.old) ||
-	   ((freqs.new > freqs.old) && safe_arm_volt)) {
+	if ((target_freq < old_freq) ||
+	   ((target_freq > old_freq) && safe_arm_volt)) {
 		/* down the voltage after frequency change */
 		ret = regulator_set_voltage(arm_regulator, arm_volt,
 				arm_volt);
@@ -142,7 +131,6 @@ post_notify:
 	}
 
 out:
-
 	cpufreq_cpu_put(policy);
 
 	return ret;
diff --git a/drivers/cpufreq/ia64-acpi-cpufreq.c b/drivers/cpufreq/ia64-acpi-cpufreq.c
index 4695fa22406a..53c6ac637e10 100644
--- a/drivers/cpufreq/ia64-acpi-cpufreq.c
+++ b/drivers/cpufreq/ia64-acpi-cpufreq.c
@@ -141,7 +141,6 @@ processor_set_freq (
 {
 	int			ret = 0;
 	u32			value = 0;
-	struct cpufreq_freqs    cpufreq_freqs;
 	cpumask_t		saved_mask;
 	int			retval;
 
@@ -168,13 +167,6 @@ processor_set_freq (
 	pr_debug("Transitioning from P%d to P%d\n",
 		data->acpi_data.state, state);
 
-	/* cpufreq frequency struct */
-	cpufreq_freqs.old = data->freq_table[data->acpi_data.state].frequency;
-	cpufreq_freqs.new = data->freq_table[state].frequency;
-
-	/* notify cpufreq */
-	cpufreq_notify_transition(policy, &cpufreq_freqs, CPUFREQ_PRECHANGE);
-
 	/*
 	 * First we write the target state's 'control' value to the
 	 * control_register.
@@ -186,22 +178,11 @@ processor_set_freq (
 
 	ret = processor_set_pstate(value);
 	if (ret) {
-		unsigned int tmp = cpufreq_freqs.new;
-		cpufreq_notify_transition(policy, &cpufreq_freqs,
-				CPUFREQ_POSTCHANGE);
-		cpufreq_freqs.new = cpufreq_freqs.old;
-		cpufreq_freqs.old = tmp;
-		cpufreq_notify_transition(policy, &cpufreq_freqs,
-				CPUFREQ_PRECHANGE);
-		cpufreq_notify_transition(policy, &cpufreq_freqs,
-				CPUFREQ_POSTCHANGE);
 		printk(KERN_WARNING "Transition failed with error %d\n", ret);
 		retval = -ENODEV;
 		goto migrate_end;
 	}
 
-	cpufreq_notify_transition(policy, &cpufreq_freqs, CPUFREQ_POSTCHANGE);
-
 	data->acpi_data.state = state;
 
 	retval = 0;
diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index 07af3b0de069..4b3f18e5f36b 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -42,14 +42,14 @@ static unsigned int imx6q_get_speed(unsigned int cpu)
 
 static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index)
 {
-	struct cpufreq_freqs freqs;
 	struct dev_pm_opp *opp;
 	unsigned long freq_hz, volt, volt_old;
+	unsigned int old_freq, new_freq;
 	int ret;
 
-	freqs.new = freq_table[index].frequency;
-	freq_hz = freqs.new * 1000;
-	freqs.old = clk_get_rate(arm_clk) / 1000;
+	new_freq = freq_table[index].frequency;
+	freq_hz = new_freq * 1000;
+	old_freq = clk_get_rate(arm_clk) / 1000;
 
 	rcu_read_lock();
 	opp = dev_pm_opp_find_freq_ceil(cpu_dev, &freq_hz);
@@ -64,26 +64,23 @@ static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index)
 	volt_old = regulator_get_voltage(arm_reg);
 
 	dev_dbg(cpu_dev, "%u MHz, %ld mV --> %u MHz, %ld mV\n",
-		freqs.old / 1000, volt_old / 1000,
-		freqs.new / 1000, volt / 1000);
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
+		old_freq / 1000, volt_old / 1000,
+		new_freq / 1000, volt / 1000);
 
 	/* scaling up?  scale voltage before frequency */
-	if (freqs.new > freqs.old) {
+	if (new_freq > old_freq) {
 		ret = regulator_set_voltage_tol(arm_reg, volt, 0);
 		if (ret) {
 			dev_err(cpu_dev,
 				"failed to scale vddarm up: %d\n", ret);
-			freqs.new = freqs.old;
-			goto post_notify;
+			return ret;
 		}
 
 		/*
 		 * Need to increase vddpu and vddsoc for safety
 		 * if we are about to run at 1.2 GHz.
 		 */
-		if (freqs.new == FREQ_1P2_GHZ / 1000) {
+		if (new_freq == FREQ_1P2_GHZ / 1000) {
 			regulator_set_voltage_tol(pu_reg,
 					PU_SOC_VOLTAGE_HIGH, 0);
 			regulator_set_voltage_tol(soc_reg,
@@ -103,21 +100,20 @@ static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index)
 	clk_set_parent(step_clk, pll2_pfd2_396m_clk);
 	clk_set_parent(pll1_sw_clk, step_clk);
 	if (freq_hz > clk_get_rate(pll2_pfd2_396m_clk)) {
-		clk_set_rate(pll1_sys_clk, freqs.new * 1000);
+		clk_set_rate(pll1_sys_clk, new_freq * 1000);
 		clk_set_parent(pll1_sw_clk, pll1_sys_clk);
 	}
 
 	/* Ensure the arm clock divider is what we expect */
-	ret = clk_set_rate(arm_clk, freqs.new * 1000);
+	ret = clk_set_rate(arm_clk, new_freq * 1000);
 	if (ret) {
 		dev_err(cpu_dev, "failed to set clock rate: %d\n", ret);
 		regulator_set_voltage_tol(arm_reg, volt_old, 0);
-		freqs.new = freqs.old;
-		goto post_notify;
+		return ret;
 	}
 
 	/* scaling down?  scale voltage after frequency */
-	if (freqs.new < freqs.old) {
+	if (new_freq < old_freq) {
 		ret = regulator_set_voltage_tol(arm_reg, volt, 0);
 		if (ret) {
 			dev_warn(cpu_dev,
@@ -125,7 +121,7 @@ static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index)
 			ret = 0;
 		}
 
-		if (freqs.old == FREQ_1P2_GHZ / 1000) {
+		if (old_freq == FREQ_1P2_GHZ / 1000) {
 			regulator_set_voltage_tol(pu_reg,
 					PU_SOC_VOLTAGE_NORMAL, 0);
 			regulator_set_voltage_tol(soc_reg,
@@ -133,10 +129,7 @@ static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index)
 		}
 	}
 
-post_notify:
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
-	return ret;
+	return 0;
 }
 
 static int imx6q_cpufreq_init(struct cpufreq_policy *policy)
diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c
index 0ae4dd7e1f2d..0767a4e29dfe 100644
--- a/drivers/cpufreq/kirkwood-cpufreq.c
+++ b/drivers/cpufreq/kirkwood-cpufreq.c
@@ -58,48 +58,34 @@ static unsigned int kirkwood_cpufreq_get_cpu_frequency(unsigned int cpu)
 static int kirkwood_cpufreq_target(struct cpufreq_policy *policy,
 			    unsigned int index)
 {
-	struct cpufreq_freqs freqs;
 	unsigned int state = kirkwood_freq_table[index].driver_data;
 	unsigned long reg;
 
-	freqs.old = kirkwood_cpufreq_get_cpu_frequency(0);
-	freqs.new = kirkwood_freq_table[index].frequency;
+	local_irq_disable();
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
+	/* Disable interrupts to the CPU */
+	reg = readl_relaxed(priv.base);
+	reg |= CPU_SW_INT_BLK;
+	writel_relaxed(reg, priv.base);
 
-	dev_dbg(priv.dev, "Attempting to set frequency to %i KHz\n",
-		kirkwood_freq_table[index].frequency);
-	dev_dbg(priv.dev, "old frequency was %i KHz\n",
-		kirkwood_cpufreq_get_cpu_frequency(0));
-
-	if (freqs.old != freqs.new) {
-		local_irq_disable();
-
-		/* Disable interrupts to the CPU */
-		reg = readl_relaxed(priv.base);
-		reg |= CPU_SW_INT_BLK;
-		writel_relaxed(reg, priv.base);
-
-		switch (state) {
-		case STATE_CPU_FREQ:
-			clk_disable(priv.powersave_clk);
-			break;
-		case STATE_DDR_FREQ:
-			clk_enable(priv.powersave_clk);
-			break;
-		}
+	switch (state) {
+	case STATE_CPU_FREQ:
+		clk_disable(priv.powersave_clk);
+		break;
+	case STATE_DDR_FREQ:
+		clk_enable(priv.powersave_clk);
+		break;
+	}
 
-		/* Wait-for-Interrupt, while the hardware changes frequency */
-		cpu_do_idle();
+	/* Wait-for-Interrupt, while the hardware changes frequency */
+	cpu_do_idle();
 
-		/* Enable interrupts to the CPU */
-		reg = readl_relaxed(priv.base);
-		reg &= ~CPU_SW_INT_BLK;
-		writel_relaxed(reg, priv.base);
+	/* Enable interrupts to the CPU */
+	reg = readl_relaxed(priv.base);
+	reg &= ~CPU_SW_INT_BLK;
+	writel_relaxed(reg, priv.base);
 
-		local_irq_enable();
-	}
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
+	local_irq_enable();
 
 	return 0;
 }
diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c
index 41a8e2cdf940..a43609218105 100644
--- a/drivers/cpufreq/loongson2_cpufreq.c
+++ b/drivers/cpufreq/loongson2_cpufreq.c
@@ -57,7 +57,6 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
 {
 	unsigned int cpu = policy->cpu;
 	cpumask_t cpus_allowed;
-	struct cpufreq_freqs freqs;
 	unsigned int freq;
 
 	cpus_allowed = current->cpus_allowed;
@@ -67,26 +66,11 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
 	    ((cpu_clock_freq / 1000) *
 	     loongson2_clockmod_table[index].driver_data) / 8;
 
-	pr_debug("cpufreq: requested frequency %u Hz\n",
-			loongson2_clockmod_table[index].frequency * 1000);
-
-	freqs.old = loongson2_cpufreq_get(cpu);
-	freqs.new = freq;
-	freqs.flags = 0;
-
-	/* notifiers */
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	set_cpus_allowed_ptr(current, &cpus_allowed);
 
 	/* setting the cpu frequency */
 	clk_set_rate(cpuclk, freq);
 
-	/* notifiers */
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
-	pr_debug("cpufreq: set frequency %u kHz\n", freq);
-
 	return 0;
 }
 
diff --git a/drivers/cpufreq/maple-cpufreq.c b/drivers/cpufreq/maple-cpufreq.c
index 4e2da0874bfb..c4dfa42a75ac 100644
--- a/drivers/cpufreq/maple-cpufreq.c
+++ b/drivers/cpufreq/maple-cpufreq.c
@@ -69,8 +69,6 @@ static struct cpufreq_frequency_table maple_cpu_freqs[] = {
  */
 static int maple_pmode_cur;
 
-static DEFINE_MUTEX(maple_switch_mutex);
-
 static const u32 *maple_pmode_data;
 static int maple_pmode_max;
 
@@ -133,21 +131,7 @@ static int maple_scom_query_freq(void)
 static int maple_cpufreq_target(struct cpufreq_policy *policy,
 	unsigned int index)
 {
-	struct cpufreq_freqs freqs;
-	int rc;
-
-	mutex_lock(&maple_switch_mutex);
-
-	freqs.old = maple_cpu_freqs[maple_pmode_cur].frequency;
-	freqs.new = maple_cpu_freqs[index].frequency;
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-	rc = maple_scom_switch_freq(index);
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
-	mutex_unlock(&maple_switch_mutex);
-
-	return rc;
+	return maple_scom_switch_freq(index);
 }
 
 static unsigned int maple_cpufreq_get_speed(unsigned int cpu)
diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index b5512712298f..be6d14307aa8 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -53,15 +53,14 @@ static unsigned int omap_getspeed(unsigned int cpu)
 
 static int omap_target(struct cpufreq_policy *policy, unsigned int index)
 {
-	int r, ret = 0;
-	struct cpufreq_freqs freqs;
 	struct dev_pm_opp *opp;
 	unsigned long freq, volt = 0, volt_old = 0, tol = 0;
+	unsigned int old_freq, new_freq;
 
-	freqs.old = omap_getspeed(policy->cpu);
-	freqs.new = freq_table[index].frequency;
+	old_freq = omap_getspeed(policy->cpu);
+	new_freq = freq_table[index].frequency;
 
-	freq = freqs.new * 1000;
+	freq = new_freq * 1000;
 	ret = clk_round_rate(mpu_clk, freq);
 	if (IS_ERR_VALUE(ret)) {
 		dev_warn(mpu_dev,
@@ -77,7 +76,7 @@ static int omap_target(struct cpufreq_policy *policy, unsigned int index)
 		if (IS_ERR(opp)) {
 			rcu_read_unlock();
 			dev_err(mpu_dev, "%s: unable to find MPU OPP for %d\n",
-				__func__, freqs.new);
+				__func__, new_freq);
 			return -EINVAL;
 		}
 		volt = dev_pm_opp_get_voltage(opp);
@@ -87,43 +86,32 @@ static int omap_target(struct cpufreq_policy *policy, unsigned int index)
 	}
 
 	dev_dbg(mpu_dev, "cpufreq-omap: %u MHz, %ld mV --> %u MHz, %ld mV\n", 
-		freqs.old / 1000, volt_old ? volt_old / 1000 : -1,
-		freqs.new / 1000, volt ? volt / 1000 : -1);
-
-	/* notifiers */
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
+		old_freq / 1000, volt_old ? volt_old / 1000 : -1,
+		new_freq / 1000, volt ? volt / 1000 : -1);
 
 	/* scaling up?  scale voltage before frequency */
-	if (mpu_reg && (freqs.new > freqs.old)) {
+	if (mpu_reg && (new_freq > old_freq)) {
 		r = regulator_set_voltage(mpu_reg, volt - tol, volt + tol);
 		if (r < 0) {
 			dev_warn(mpu_dev, "%s: unable to scale voltage up.\n",
 				 __func__);
-			freqs.new = freqs.old;
-			goto done;
+			return r;
 		}
 	}
 
-	ret = clk_set_rate(mpu_clk, freqs.new * 1000);
+	ret = clk_set_rate(mpu_clk, new_freq * 1000);
 
 	/* scaling down?  scale voltage after frequency */
-	if (mpu_reg && (freqs.new < freqs.old)) {
+	if (mpu_reg && (new_freq < old_freq)) {
 		r = regulator_set_voltage(mpu_reg, volt - tol, volt + tol);
 		if (r < 0) {
 			dev_warn(mpu_dev, "%s: unable to scale voltage down.\n",
 				 __func__);
-			ret = clk_set_rate(mpu_clk, freqs.old * 1000);
-			freqs.new = freqs.old;
-			goto done;
+			clk_set_rate(mpu_clk, old_freq * 1000);
+			return r;
 		}
 	}
 
-	freqs.new = omap_getspeed(policy->cpu);
-
-done:
-	/* notifiers */
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
 	return ret;
 }
 
diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c
index 3c23053afdfd..3d1cba9fd5f9 100644
--- a/drivers/cpufreq/p4-clockmod.c
+++ b/drivers/cpufreq/p4-clockmod.c
@@ -107,15 +107,8 @@ static struct cpufreq_frequency_table p4clockmod_table[] = {
 
 static int cpufreq_p4_target(struct cpufreq_policy *policy, unsigned int index)
 {
-	struct cpufreq_freqs freqs;
 	int i;
 
-	freqs.old = cpufreq_p4_get(policy->cpu);
-	freqs.new = stock_freq * p4clockmod_table[index].driver_data / 8;
-
-	/* notifiers */
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	/* run on each logical CPU,
 	 * see section 13.15.3 of IA32 Intel Architecture Software
 	 * Developer's Manual, Volume 3
@@ -123,9 +116,6 @@ static int cpufreq_p4_target(struct cpufreq_policy *policy, unsigned int index)
 	for_each_cpu(i, policy->cpus)
 		cpufreq_p4_setdc(i, p4clockmod_table[index].driver_data);
 
-	/* notifiers */
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
 	return 0;
 }
 
diff --git a/drivers/cpufreq/pasemi-cpufreq.c b/drivers/cpufreq/pasemi-cpufreq.c
index 17424ddc7f67..1c331369b15b 100644
--- a/drivers/cpufreq/pasemi-cpufreq.c
+++ b/drivers/cpufreq/pasemi-cpufreq.c
@@ -51,8 +51,6 @@
 static void __iomem *sdcpwr_mapbase;
 static void __iomem *sdcasr_mapbase;
 
-static DEFINE_MUTEX(pas_switch_mutex);
-
 /* Current astate, is used when waking up from power savings on
  * one core, in case the other core has switched states during
  * the idle time.
@@ -242,15 +240,8 @@ static int pas_cpufreq_cpu_exit(struct cpufreq_policy *policy)
 static int pas_cpufreq_target(struct cpufreq_policy *policy,
 			      unsigned int pas_astate_new)
 {
-	struct cpufreq_freqs freqs;
 	int i;
 
-	freqs.old = policy->cur;
-	freqs.new = pas_freqs[pas_astate_new].frequency;
-
-	mutex_lock(&pas_switch_mutex);
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	pr_debug("setting frequency for cpu %d to %d kHz, 1/%d of max frequency\n",
 		 policy->cpu,
 		 pas_freqs[pas_astate_new].frequency,
@@ -261,10 +252,7 @@ static int pas_cpufreq_target(struct cpufreq_policy *policy,
 	for_each_online_cpu(i)
 		set_astate(i, pas_astate_new);
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-	mutex_unlock(&pas_switch_mutex);
-
-	ppc_proc_freq = freqs.new * 1000ul;
+	ppc_proc_freq = pas_freqs[pas_astate_new].frequency * 1000ul;
 	return 0;
 }
 
diff --git a/drivers/cpufreq/pmac32-cpufreq.c b/drivers/cpufreq/pmac32-cpufreq.c
index 05f705e1b7a2..cf55d202f332 100644
--- a/drivers/cpufreq/pmac32-cpufreq.c
+++ b/drivers/cpufreq/pmac32-cpufreq.c
@@ -331,21 +331,11 @@ static int pmu_set_cpu_speed(int low_speed)
 	return 0;
 }
 
-static int do_set_cpu_speed(struct cpufreq_policy *policy, int speed_mode,
-		int notify)
+static int do_set_cpu_speed(struct cpufreq_policy *policy, int speed_mode)
 {
-	struct cpufreq_freqs freqs;
 	unsigned long l3cr;
 	static unsigned long prev_l3cr;
 
-	freqs.old = cur_freq;
-	freqs.new = (speed_mode == CPUFREQ_HIGH) ? hi_freq : low_freq;
-
-	if (freqs.old == freqs.new)
-		return 0;
-
-	if (notify)
-		cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
 	if (speed_mode == CPUFREQ_LOW &&
 	    cpu_has_feature(CPU_FTR_L3CR)) {
 		l3cr = _get_L3CR();
@@ -361,8 +351,6 @@ static int do_set_cpu_speed(struct cpufreq_policy *policy, int speed_mode,
 		if ((prev_l3cr & L3CR_L3E) && l3cr != prev_l3cr)
 			_set_L3CR(prev_l3cr);
 	}
-	if (notify)
-		cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
 	cur_freq = (speed_mode == CPUFREQ_HIGH) ? hi_freq : low_freq;
 
 	return 0;
@@ -378,7 +366,7 @@ static int pmac_cpufreq_target(	struct cpufreq_policy *policy,
 {
 	int		rc;
 
-	rc = do_set_cpu_speed(policy, index, 1);
+	rc = do_set_cpu_speed(policy, index);
 
 	ppc_proc_freq = cur_freq * 1000ul;
 	return rc;
@@ -420,7 +408,7 @@ static int pmac_cpufreq_suspend(struct cpufreq_policy *policy)
 	no_schedule = 1;
 	sleep_freq = cur_freq;
 	if (cur_freq == low_freq && !is_pmu_based)
-		do_set_cpu_speed(policy, CPUFREQ_HIGH, 0);
+		do_set_cpu_speed(policy, CPUFREQ_HIGH);
 	return 0;
 }
 
@@ -437,7 +425,7 @@ static int pmac_cpufreq_resume(struct cpufreq_policy *policy)
 	 * probably high speed due to our suspend() routine
 	 */
 	do_set_cpu_speed(policy, sleep_freq == low_freq ?
-			 CPUFREQ_LOW : CPUFREQ_HIGH, 0);
+			 CPUFREQ_LOW : CPUFREQ_HIGH);
 
 	ppc_proc_freq = cur_freq * 1000ul;
 
diff --git a/drivers/cpufreq/pmac64-cpufreq.c b/drivers/cpufreq/pmac64-cpufreq.c
index 234b598ce416..6a338f8c3860 100644
--- a/drivers/cpufreq/pmac64-cpufreq.c
+++ b/drivers/cpufreq/pmac64-cpufreq.c
@@ -79,8 +79,6 @@ static void (*g5_switch_volt)(int speed_mode);
 static int (*g5_switch_freq)(int speed_mode);
 static int (*g5_query_freq)(void);
 
-static DEFINE_MUTEX(g5_switch_mutex);
-
 static unsigned long transition_latency;
 
 #ifdef CONFIG_PMAC_SMU
@@ -314,21 +312,7 @@ static int g5_pfunc_query_freq(void)
 
 static int g5_cpufreq_target(struct cpufreq_policy *policy, unsigned int index)
 {
-	struct cpufreq_freqs freqs;
-	int rc;
-
-	mutex_lock(&g5_switch_mutex);
-
-	freqs.old = g5_cpu_freqs[g5_pmode_cur].frequency;
-	freqs.new = g5_cpu_freqs[index].frequency;
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-	rc = g5_switch_freq(index);
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
-	mutex_unlock(&g5_switch_mutex);
-
-	return rc;
+	return g5_switch_freq(index);
 }
 
 static unsigned int g5_cpufreq_get_speed(unsigned int cpu)
diff --git a/drivers/cpufreq/ppc-corenet-cpufreq.c b/drivers/cpufreq/ppc-corenet-cpufreq.c
index 79d8e9c46b6d..3f7be46d2b27 100644
--- a/drivers/cpufreq/ppc-corenet-cpufreq.c
+++ b/drivers/cpufreq/ppc-corenet-cpufreq.c
@@ -69,8 +69,6 @@ static const struct soc_data sdata[] = {
 static u32 min_cpufreq;
 static const u32 *fmask;
 
-/* serialize frequency changes  */
-static DEFINE_MUTEX(cpufreq_lock);
 static DEFINE_PER_CPU(struct cpu_data *, cpu_data);
 
 /* cpumask in a cluster */
@@ -253,26 +251,11 @@ static int __exit corenet_cpufreq_cpu_exit(struct cpufreq_policy *policy)
 static int corenet_cpufreq_target(struct cpufreq_policy *policy,
 		unsigned int index)
 {
-	struct cpufreq_freqs freqs;
 	struct clk *parent;
-	int ret;
 	struct cpu_data *data = per_cpu(cpu_data, policy->cpu);
 
-	freqs.old = policy->cur;
-	freqs.new = data->table[index].frequency;
-
-	mutex_lock(&cpufreq_lock);
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	parent = of_clk_get(data->parent, data->table[index].driver_data);
-	ret = clk_set_parent(data->clk, parent);
-	if (ret)
-		freqs.new = freqs.old;
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-	mutex_unlock(&cpufreq_lock);
-
-	return ret;
+	return clk_set_parent(data->clk, parent);
 }
 
 static struct cpufreq_driver ppc_corenet_cpufreq_driver = {
diff --git a/drivers/cpufreq/ppc_cbe_cpufreq.c b/drivers/cpufreq/ppc_cbe_cpufreq.c
index 52f707d5f458..e42ca9c31cea 100644
--- a/drivers/cpufreq/ppc_cbe_cpufreq.c
+++ b/drivers/cpufreq/ppc_cbe_cpufreq.c
@@ -30,9 +30,6 @@
 
 #include "ppc_cbe_cpufreq.h"
 
-static DEFINE_MUTEX(cbe_switch_mutex);
-
-
 /* the CBE supports an 8 step frequency scaling */
 static struct cpufreq_frequency_table cbe_freqs[] = {
 	{1,	0},
@@ -131,27 +128,13 @@ static int cbe_cpufreq_cpu_init(struct cpufreq_policy *policy)
 static int cbe_cpufreq_target(struct cpufreq_policy *policy,
 			      unsigned int cbe_pmode_new)
 {
-	int rc;
-	struct cpufreq_freqs freqs;
-
-	freqs.old = policy->cur;
-	freqs.new = cbe_freqs[cbe_pmode_new].frequency;
-
-	mutex_lock(&cbe_switch_mutex);
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	pr_debug("setting frequency for cpu %d to %d kHz, " \
 		 "1/%d of max frequency\n",
 		 policy->cpu,
 		 cbe_freqs[cbe_pmode_new].frequency,
 		 cbe_freqs[cbe_pmode_new].driver_data);
 
-	rc = set_pmode(policy->cpu, cbe_pmode_new);
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-	mutex_unlock(&cbe_switch_mutex);
-
-	return rc;
+	return set_pmode(policy->cpu, cbe_pmode_new);
 }
 
 static struct cpufreq_driver cbe_cpufreq_driver = {
diff --git a/drivers/cpufreq/pxa2xx-cpufreq.c b/drivers/cpufreq/pxa2xx-cpufreq.c
index 183bc13f13e5..0a0f4369636a 100644
--- a/drivers/cpufreq/pxa2xx-cpufreq.c
+++ b/drivers/cpufreq/pxa2xx-cpufreq.c
@@ -271,7 +271,6 @@ static int pxa_set_target(struct cpufreq_policy *policy, unsigned int idx)
 {
 	struct cpufreq_frequency_table *pxa_freqs_table;
 	pxa_freqs_t *pxa_freq_settings;
-	struct cpufreq_freqs freqs;
 	unsigned long flags;
 	unsigned int new_freq_cpu, new_freq_mem;
 	unsigned int unused, preset_mdrefr, postset_mdrefr, cclkcfg;
@@ -282,24 +281,17 @@ static int pxa_set_target(struct cpufreq_policy *policy, unsigned int idx)
 
 	new_freq_cpu = pxa_freq_settings[idx].khz;
 	new_freq_mem = pxa_freq_settings[idx].membus;
-	freqs.old = policy->cur;
-	freqs.new = new_freq_cpu;
 
 	if (freq_debug)
 		pr_debug("Changing CPU frequency to %d Mhz, (SDRAM %d Mhz)\n",
-			 freqs.new / 1000, (pxa_freq_settings[idx].div2) ?
+			 new_freq_cpu / 1000, (pxa_freq_settings[idx].div2) ?
 			 (new_freq_mem / 2000) : (new_freq_mem / 1000));
 
-	if (vcc_core && freqs.new > freqs.old)
+	if (vcc_core && new_freq_cpu > policy->cur) {
 		ret = pxa_cpufreq_change_voltage(&pxa_freq_settings[idx]);
-	if (ret)
-		return ret;
-	/*
-	 * Tell everyone what we're about to do...
-	 * you should add a notify client with any platform specific
-	 * Vcc changing capability
-	 */
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
+		if (ret)
+			return ret;
+	}
 
 	/* Calculate the next MDREFR.  If we're slowing down the SDRAM clock
 	 * we need to preset the smaller DRI before the change.	 If we're
@@ -349,13 +341,6 @@ static int pxa_set_target(struct cpufreq_policy *policy, unsigned int idx)
 		     : "r4", "r5");
 	local_irq_restore(flags);
 
-	/*
-	 * Tell everyone what we've just done...
-	 * you should add a notify client with any platform specific
-	 * SDRAM refresh timer adjustments
-	 */
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
 	/*
 	 * Even if voltage setting fails, we don't report it, as the frequency
 	 * change succeeded. The voltage reduction is not a critical failure,
@@ -365,7 +350,7 @@ static int pxa_set_target(struct cpufreq_policy *policy, unsigned int idx)
 	 * bug is triggered (seems a deadlock). Should anybody find out where,
 	 * the "return 0" should become a "return ret".
 	 */
-	if (vcc_core && freqs.new < freqs.old)
+	if (vcc_core && new_freq_cpu < policy->cur)
 		ret = pxa_cpufreq_change_voltage(&pxa_freq_settings[idx]);
 
 	return 0;
diff --git a/drivers/cpufreq/pxa3xx-cpufreq.c b/drivers/cpufreq/pxa3xx-cpufreq.c
index 132e37d578c2..93840048dd11 100644
--- a/drivers/cpufreq/pxa3xx-cpufreq.c
+++ b/drivers/cpufreq/pxa3xx-cpufreq.c
@@ -158,7 +158,6 @@ static unsigned int pxa3xx_cpufreq_get(unsigned int cpu)
 static int pxa3xx_cpufreq_set(struct cpufreq_policy *policy, unsigned int index)
 {
 	struct pxa3xx_freq_info *next;
-	struct cpufreq_freqs freqs;
 	unsigned long flags;
 
 	if (policy->cpu != 0)
@@ -166,22 +165,11 @@ static int pxa3xx_cpufreq_set(struct cpufreq_policy *policy, unsigned int index)
 
 	next = &pxa3xx_freqs[index];
 
-	freqs.old = policy->cur;
-	freqs.new = next->cpufreq_mhz * 1000;
-
-	pr_debug("CPU frequency from %d MHz to %d MHz%s\n",
-			freqs.old / 1000, freqs.new / 1000,
-			(freqs.old == freqs.new) ? " (skipped)" : "");
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	local_irq_save(flags);
 	__update_core_freq(next);
 	__update_bus_freq(next);
 	local_irq_restore(flags);
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
 	return 0;
 }
 
diff --git a/drivers/cpufreq/s3c2416-cpufreq.c b/drivers/cpufreq/s3c2416-cpufreq.c
index 4188accd34ab..8d904a00027b 100644
--- a/drivers/cpufreq/s3c2416-cpufreq.c
+++ b/drivers/cpufreq/s3c2416-cpufreq.c
@@ -220,7 +220,7 @@ static int s3c2416_cpufreq_set_target(struct cpufreq_policy *policy,
 				      unsigned int index)
 {
 	struct s3c2416_data *s3c_freq = &s3c2416_cpufreq;
-	struct cpufreq_freqs freqs;
+	unsigned int new_freq;
 	int idx, ret, to_dvs = 0;
 
 	mutex_lock(&cpufreq_lock);
@@ -237,25 +237,14 @@ static int s3c2416_cpufreq_set_target(struct cpufreq_policy *policy,
 		goto out;
 	}
 
-	freqs.flags = 0;
-	freqs.old = s3c_freq->is_dvs ? FREQ_DVS
-				     : clk_get_rate(s3c_freq->armclk) / 1000;
-
 	/* When leavin dvs mode, always switch the armdiv to the hclk rate
 	 * The S3C2416 has stability issues when switching directly to
 	 * higher frequencies.
 	 */
-	freqs.new = (s3c_freq->is_dvs && !to_dvs)
+	new_freq = (s3c_freq->is_dvs && !to_dvs)
 				? clk_get_rate(s3c_freq->hclk) / 1000
 				: s3c_freq->freq_table[index].frequency;
 
-	pr_debug("cpufreq: Transition %d-%dkHz\n", freqs.old, freqs.new);
-
-	if (!to_dvs && freqs.old == freqs.new)
-		goto out;
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	if (to_dvs) {
 		pr_debug("cpufreq: enter dvs\n");
 		ret = s3c2416_cpufreq_enter_dvs(s3c_freq, idx);
@@ -263,12 +252,10 @@ static int s3c2416_cpufreq_set_target(struct cpufreq_policy *policy,
 		pr_debug("cpufreq: leave dvs\n");
 		ret = s3c2416_cpufreq_leave_dvs(s3c_freq, idx);
 	} else {
-		pr_debug("cpufreq: change armdiv to %dkHz\n", freqs.new);
-		ret = s3c2416_cpufreq_set_armdiv(s3c_freq, freqs.new);
+		pr_debug("cpufreq: change armdiv to %dkHz\n", new_freq);
+		ret = s3c2416_cpufreq_set_armdiv(s3c_freq, new_freq);
 	}
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
 out:
 	mutex_unlock(&cpufreq_lock);
 
diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c
index 8bdcf32a4418..67e302eeefec 100644
--- a/drivers/cpufreq/s3c64xx-cpufreq.c
+++ b/drivers/cpufreq/s3c64xx-cpufreq.c
@@ -65,54 +65,46 @@ static unsigned int s3c64xx_cpufreq_get_speed(unsigned int cpu)
 static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
 				      unsigned int index)
 {
-	int ret;
-	struct cpufreq_freqs freqs;
 	struct s3c64xx_dvfs *dvfs;
+	unsigned int old_freq, new_freq;
+	int ret;
 
-	freqs.old = clk_get_rate(armclk) / 1000;
-	freqs.new = s3c64xx_freq_table[index].frequency;
-	freqs.flags = 0;
+	old_freq = clk_get_rate(armclk) / 1000;
+	new_freq = s3c64xx_freq_table[index].frequency;
 	dvfs = &s3c64xx_dvfs_table[s3c64xx_freq_table[index].driver_data];
 
-	pr_debug("Transition %d-%dkHz\n", freqs.old, freqs.new);
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 #ifdef CONFIG_REGULATOR
-	if (vddarm && freqs.new > freqs.old) {
+	if (vddarm && new_freq > old_freq) {
 		ret = regulator_set_voltage(vddarm,
 					    dvfs->vddarm_min,
 					    dvfs->vddarm_max);
 		if (ret != 0) {
 			pr_err("Failed to set VDDARM for %dkHz: %d\n",
-			       freqs.new, ret);
-			freqs.new = freqs.old;
-			goto post_notify;
+			       new_freq, ret);
+			return ret;
 		}
 	}
 #endif
 
-	ret = clk_set_rate(armclk, freqs.new * 1000);
+	ret = clk_set_rate(armclk, new_freq * 1000);
 	if (ret < 0) {
 		pr_err("Failed to set rate %dkHz: %d\n",
-		       freqs.new, ret);
-		freqs.new = freqs.old;
+		       new_freq, ret);
+		return ret;
 	}
 
-post_notify:
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-	if (ret)
-		goto err;
-
 #ifdef CONFIG_REGULATOR
-	if (vddarm && freqs.new < freqs.old) {
+	if (vddarm && new_freq < old_freq) {
 		ret = regulator_set_voltage(vddarm,
 					    dvfs->vddarm_min,
 					    dvfs->vddarm_max);
 		if (ret != 0) {
 			pr_err("Failed to set VDDARM for %dkHz: %d\n",
-			       freqs.new, ret);
-			goto err_clk;
+			       new_freq, ret);
+			if (clk_set_rate(armclk, old_freq * 1000) < 0)
+				pr_err("Failed to restore original clock rate\n");
+
+			return ret;
 		}
 	}
 #endif
@@ -121,14 +113,6 @@ post_notify:
 		 clk_get_rate(armclk) / 1000);
 
 	return 0;
-
-err_clk:
-	if (clk_set_rate(armclk, freqs.old * 1000) < 0)
-		pr_err("Failed to restore original clock rate\n");
-err:
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
-	return ret;
 }
 
 #ifdef CONFIG_REGULATOR
diff --git a/drivers/cpufreq/s5pv210-cpufreq.c b/drivers/cpufreq/s5pv210-cpufreq.c
index 5978b94e0340..e3973dae28a7 100644
--- a/drivers/cpufreq/s5pv210-cpufreq.c
+++ b/drivers/cpufreq/s5pv210-cpufreq.c
@@ -26,7 +26,6 @@
 static struct clk *cpu_clk;
 static struct clk *dmc0_clk;
 static struct clk *dmc1_clk;
-static struct cpufreq_freqs freqs;
 static DEFINE_MUTEX(set_freq_lock);
 
 /* APLL M,P,S values for 1G/800Mhz */
@@ -179,6 +178,7 @@ static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index)
 	unsigned int priv_index;
 	unsigned int pll_changing = 0;
 	unsigned int bus_speed_changing = 0;
+	unsigned int old_freq, new_freq;
 	int arm_volt, int_volt;
 	int ret = 0;
 
@@ -193,12 +193,12 @@ static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index)
 		goto exit;
 	}
 
-	freqs.old = s5pv210_getspeed(0);
-	freqs.new = s5pv210_freq_table[index].frequency;
+	old_freq = s5pv210_getspeed(0);
+	new_freq = s5pv210_freq_table[index].frequency;
 
 	/* Finding current running level index */
 	if (cpufreq_frequency_table_target(policy, s5pv210_freq_table,
-					   freqs.old, CPUFREQ_RELATION_H,
+					   old_freq, CPUFREQ_RELATION_H,
 					   &priv_index)) {
 		ret = -EINVAL;
 		goto exit;
@@ -207,7 +207,7 @@ static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index)
 	arm_volt = dvs_conf[index].arm_volt;
 	int_volt = dvs_conf[index].int_volt;
 
-	if (freqs.new > freqs.old) {
+	if (new_freq > old_freq) {
 		ret = regulator_set_voltage(arm_regulator,
 				arm_volt, arm_volt_max);
 		if (ret)
@@ -219,8 +219,6 @@ static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index)
 			goto exit;
 	}
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	/* Check if there need to change PLL */
 	if ((index == L0) || (priv_index == L0))
 		pll_changing = 1;
@@ -431,9 +429,7 @@ static int s5pv210_target(struct cpufreq_policy *policy, unsigned int index)
 		}
 	}
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
-	if (freqs.new < freqs.old) {
+	if (new_freq < old_freq) {
 		regulator_set_voltage(int_regulator,
 				int_volt, int_volt_max);
 
diff --git a/drivers/cpufreq/sa1100-cpufreq.c b/drivers/cpufreq/sa1100-cpufreq.c
index b0da1fe40b1d..623da742f8e7 100644
--- a/drivers/cpufreq/sa1100-cpufreq.c
+++ b/drivers/cpufreq/sa1100-cpufreq.c
@@ -180,22 +180,17 @@ static void sa1100_update_dram_timings(int current_speed, int new_speed)
 static int sa1100_target(struct cpufreq_policy *policy, unsigned int ppcr)
 {
 	unsigned int cur = sa11x0_getspeed(0);
-	struct cpufreq_freqs freqs;
+	unsigned int new_freq;
 
-	freqs.old = cur;
-	freqs.new = sa11x0_freq_table[ppcr].frequency;
+	new_freq = sa11x0_freq_table[ppcr].frequency;
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
-	if (freqs.new > cur)
-		sa1100_update_dram_timings(cur, freqs.new);
+	if (new_freq > cur)
+		sa1100_update_dram_timings(cur, new_freq);
 
 	PPCR = ppcr;
 
-	if (freqs.new < cur)
-		sa1100_update_dram_timings(cur, freqs.new);
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
+	if (new_freq < cur)
+		sa1100_update_dram_timings(cur, new_freq);
 
 	return 0;
 }
diff --git a/drivers/cpufreq/sa1110-cpufreq.c b/drivers/cpufreq/sa1110-cpufreq.c
index 55b1818c3e49..2c2b2e601d13 100644
--- a/drivers/cpufreq/sa1110-cpufreq.c
+++ b/drivers/cpufreq/sa1110-cpufreq.c
@@ -232,15 +232,11 @@ sdram_update_refresh(u_int cpu_khz, struct sdram_params *sdram)
 static int sa1110_target(struct cpufreq_policy *policy, unsigned int ppcr)
 {
 	struct sdram_params *sdram = &sdram_params;
-	struct cpufreq_freqs freqs;
 	struct sdram_info sd;
 	unsigned long flags;
 	unsigned int unused;
 
-	freqs.old = sa11x0_getspeed(0);
-	freqs.new = sa11x0_freq_table[ppcr].frequency;
-
-	sdram_calculate_timing(&sd, freqs.new, sdram);
+	sdram_calculate_timing(&sd, sa11x0_freq_table[ppcr].frequency, sdram);
 
 #if 0
 	/*
@@ -259,8 +255,6 @@ static int sa1110_target(struct cpufreq_policy *policy, unsigned int ppcr)
 	sd.mdcas[2] = 0xaaaaaaaa;
 #endif
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	/*
 	 * The clock could be going away for some time.  Set the SDRAMs
 	 * to refresh rapidly (every 64 memory clock cycles).  To get
@@ -305,9 +299,7 @@ static int sa1110_target(struct cpufreq_policy *policy, unsigned int ppcr)
 	/*
 	 * Now, return the SDRAM refresh back to normal.
 	 */
-	sdram_update_refresh(freqs.new, sdram);
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
+	sdram_update_refresh(sa11x0_freq_table[ppcr].frequency, sdram);
 
 	return 0;
 }
diff --git a/drivers/cpufreq/sc520_freq.c b/drivers/cpufreq/sc520_freq.c
index 6c86452e1737..6adb354e359c 100644
--- a/drivers/cpufreq/sc520_freq.c
+++ b/drivers/cpufreq/sc520_freq.c
@@ -56,17 +56,8 @@ static unsigned int sc520_freq_get_cpu_frequency(unsigned int cpu)
 static int sc520_freq_target(struct cpufreq_policy *policy, unsigned int state)
 {
 
-	struct cpufreq_freqs	freqs;
 	u8 clockspeed_reg;
 
-	freqs.old = sc520_freq_get_cpu_frequency(0);
-	freqs.new = sc520_freq_table[state].frequency;
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
-	pr_debug("attempting to set frequency to %i kHz\n",
-			sc520_freq_table[state].frequency);
-
 	local_irq_disable();
 
 	clockspeed_reg = *cpuctl & ~0x03;
@@ -74,8 +65,6 @@ static int sc520_freq_target(struct cpufreq_policy *policy, unsigned int state)
 
 	local_irq_enable();
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
 	return 0;
 }
 
diff --git a/drivers/cpufreq/sparc-us2e-cpufreq.c b/drivers/cpufreq/sparc-us2e-cpufreq.c
index 3bf5b8f03661..62aa23e219d4 100644
--- a/drivers/cpufreq/sparc-us2e-cpufreq.c
+++ b/drivers/cpufreq/sparc-us2e-cpufreq.c
@@ -251,7 +251,6 @@ static int us2e_freq_target(struct cpufreq_policy *policy, unsigned int index)
 	unsigned long new_bits, new_freq;
 	unsigned long clock_tick, divisor, old_divisor, estar;
 	cpumask_t cpus_allowed;
-	struct cpufreq_freqs freqs;
 
 	cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
 	set_cpus_allowed_ptr(current, cpumask_of(cpu));
@@ -265,16 +264,10 @@ static int us2e_freq_target(struct cpufreq_policy *policy, unsigned int index)
 
 	old_divisor = estar_to_divisor(estar);
 
-	freqs.old = clock_tick / old_divisor;
-	freqs.new = new_freq;
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	if (old_divisor != divisor)
 		us2e_transition(estar, new_bits, clock_tick * 1000,
 				old_divisor, divisor);
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
 	set_cpus_allowed_ptr(current, &cpus_allowed);
 
 	return 0;
diff --git a/drivers/cpufreq/sparc-us3-cpufreq.c b/drivers/cpufreq/sparc-us3-cpufreq.c
index 2e54d55915df..724ffbd7105d 100644
--- a/drivers/cpufreq/sparc-us3-cpufreq.c
+++ b/drivers/cpufreq/sparc-us3-cpufreq.c
@@ -98,7 +98,6 @@ static int us3_freq_target(struct cpufreq_policy *policy, unsigned int index)
 	unsigned int cpu = policy->cpu;
 	unsigned long new_bits, new_freq, reg;
 	cpumask_t cpus_allowed;
-	struct cpufreq_freqs freqs;
 
 	cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
 	set_cpus_allowed_ptr(current, cpumask_of(cpu));
@@ -124,16 +123,10 @@ static int us3_freq_target(struct cpufreq_policy *policy, unsigned int index)
 
 	reg = read_safari_cfg();
 
-	freqs.old = get_current_freq(cpu, reg);
-	freqs.new = new_freq;
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	reg &= ~SAFARI_CFG_DIV_MASK;
 	reg |= new_bits;
 	write_safari_cfg(reg);
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
 	set_cpus_allowed_ptr(current, &cpus_allowed);
 
 	return 0;
diff --git a/drivers/cpufreq/spear-cpufreq.c b/drivers/cpufreq/spear-cpufreq.c
index 11a65be3fd76..d02ccd19c9c4 100644
--- a/drivers/cpufreq/spear-cpufreq.c
+++ b/drivers/cpufreq/spear-cpufreq.c
@@ -107,12 +107,10 @@ static int spear1340_set_cpu_rate(struct clk *sys_pclk, unsigned long newfreq)
 static int spear_cpufreq_target(struct cpufreq_policy *policy,
 		unsigned int index)
 {
-	struct cpufreq_freqs freqs;
 	long newfreq;
 	struct clk *srcclk;
 	int ret, mult = 1;
 
-	freqs.old = spear_cpufreq_get(0);
 	newfreq = spear_cpufreq.freq_tbl[index].frequency * 1000;
 
 	if (of_machine_is_compatible("st,spear1340")) {
@@ -145,23 +143,14 @@ static int spear_cpufreq_target(struct cpufreq_policy *policy,
 		return newfreq;
 	}
 
-	freqs.new = newfreq / 1000;
-	freqs.new /= mult;
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
 	if (mult == 2)
 		ret = spear1340_set_cpu_rate(srcclk, newfreq);
 	else
 		ret = clk_set_rate(spear_cpufreq.clk, newfreq);
 
-	/* Get current rate after clk_set_rate, in case of failure */
-	if (ret) {
+	if (ret)
 		pr_err("CPU Freq: cpu clk_set_rate failed: %d\n", ret);
-		freqs.new = clk_get_rate(spear_cpufreq.clk) / 1000;
-	}
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
 	return ret;
 }
 
diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c
index c51ec8c0e3a8..4e1daca5ce3b 100644
--- a/drivers/cpufreq/speedstep-centrino.c
+++ b/drivers/cpufreq/speedstep-centrino.c
@@ -423,9 +423,8 @@ static int centrino_cpu_exit(struct cpufreq_policy *policy)
 static int centrino_target(struct cpufreq_policy *policy, unsigned int index)
 {
 	unsigned int	msr, oldmsr = 0, h = 0, cpu = policy->cpu;
-	struct cpufreq_freqs	freqs;
 	int			retval = 0;
-	unsigned int		j, first_cpu, tmp;
+	unsigned int		j, first_cpu;
 	struct cpufreq_frequency_table *op_points;
 	cpumask_var_t covered_cpus;
 
@@ -473,16 +472,6 @@ static int centrino_target(struct cpufreq_policy *policy, unsigned int index)
 				goto out;
 			}
 
-			freqs.old = extract_clock(oldmsr, cpu, 0);
-			freqs.new = extract_clock(msr, cpu, 0);
-
-			pr_debug("target=%dkHz old=%d new=%d msr=%04x\n",
-				op_points->frequency, freqs.old, freqs.new,
-				msr);
-
-			cpufreq_notify_transition(policy, &freqs,
-					CPUFREQ_PRECHANGE);
-
 			first_cpu = 0;
 			/* all but 16 LSB are reserved, treat them with care */
 			oldmsr &= ~0xffff;
@@ -497,8 +486,6 @@ static int centrino_target(struct cpufreq_policy *policy, unsigned int index)
 		cpumask_set_cpu(j, covered_cpus);
 	}
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
 	if (unlikely(retval)) {
 		/*
 		 * We have failed halfway through the frequency change.
@@ -509,12 +496,6 @@ static int centrino_target(struct cpufreq_policy *policy, unsigned int index)
 
 		for_each_cpu(j, covered_cpus)
 			wrmsr_on_cpu(j, MSR_IA32_PERF_CTL, oldmsr, h);
-
-		tmp = freqs.new;
-		freqs.new = freqs.old;
-		freqs.old = tmp;
-		cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-		cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
 	}
 	retval = 0;
 
diff --git a/drivers/cpufreq/speedstep-ich.c b/drivers/cpufreq/speedstep-ich.c
index 707721ebb853..7639b2be2a90 100644
--- a/drivers/cpufreq/speedstep-ich.c
+++ b/drivers/cpufreq/speedstep-ich.c
@@ -258,21 +258,12 @@ static unsigned int speedstep_get(unsigned int cpu)
 static int speedstep_target(struct cpufreq_policy *policy, unsigned int index)
 {
 	unsigned int policy_cpu;
-	struct cpufreq_freqs freqs;
 
 	policy_cpu = cpumask_any_and(policy->cpus, cpu_online_mask);
-	freqs.old = speedstep_get(policy_cpu);
-	freqs.new = speedstep_freqs[index].frequency;
-
-	pr_debug("transiting from %u to %u kHz\n", freqs.old, freqs.new);
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
 
 	smp_call_function_single(policy_cpu, _speedstep_set_state, &index,
 				 true);
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
-
 	return 0;
 }
 
diff --git a/drivers/cpufreq/speedstep-smi.c b/drivers/cpufreq/speedstep-smi.c
index 19446e479ccc..0f5326d6f79f 100644
--- a/drivers/cpufreq/speedstep-smi.c
+++ b/drivers/cpufreq/speedstep-smi.c
@@ -241,14 +241,7 @@ static void speedstep_set_state(unsigned int state)
  */
 static int speedstep_target(struct cpufreq_policy *policy, unsigned int index)
 {
-	struct cpufreq_freqs freqs;
-
-	freqs.old = speedstep_freqs[speedstep_get_state()].frequency;
-	freqs.new = speedstep_freqs[index].frequency;
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
 	speedstep_set_state(index);
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
 
 	return 0;
 }
diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c
index bd7d89c013a5..f42df7ec03c5 100644
--- a/drivers/cpufreq/tegra-cpufreq.c
+++ b/drivers/cpufreq/tegra-cpufreq.c
@@ -102,12 +102,8 @@ static int tegra_update_cpu_speed(struct cpufreq_policy *policy,
 		unsigned long rate)
 {
 	int ret = 0;
-	struct cpufreq_freqs freqs;
 
-	freqs.old = tegra_getspeed(0);
-	freqs.new = rate;
-
-	if (freqs.old == freqs.new)
+	if (tegra_getspeed(0) == rate)
 		return ret;
 
 	/*
@@ -121,21 +117,10 @@ static int tegra_update_cpu_speed(struct cpufreq_policy *policy,
 	else
 		clk_set_rate(emc_clk, 100000000);  /* emc 50Mhz */
 
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
-
-#ifdef CONFIG_CPU_FREQ_DEBUG
-	printk(KERN_DEBUG "cpufreq-tegra: transition: %u --> %u\n",
-	       freqs.old, freqs.new);
-#endif
-
-	ret = tegra_cpu_clk_set_rate(freqs.new * 1000);
-	if (ret) {
-		pr_err("cpu-tegra: Failed to set cpu frequency to %d kHz\n",
-			freqs.new);
-		freqs.new = freqs.old;
-	}
-
-	cpufreq_notify_transition(policy, &freqs, CPUFREQ_POSTCHANGE);
+	ret = tegra_cpu_clk_set_rate(rate * 1000);
+	if (ret)
+		pr_err("cpu-tegra: Failed to set cpu frequency to %lu kHz\n",
+			rate);
 
 	return ret;
 }
-- 
cgit 


From e002264f7e45d7661b237045577052fd0b40f89c Mon Sep 17 00:00:00 2001
From: Balaji T K <balajitk@ti.com>
Date: Mon, 21 Oct 2013 00:25:18 +0530
Subject: mmc: omap_hsmmc: Fix pbias_disable for omap4

pbias_disable is set to protect the mmc pbias i/o cells in DT boot
by preventing voltage switch. Currently pbias_disable is enabled only
for omap3 and not for omap4 due to reg_offset difference of 0x100.
Enable pbias_disable for omap4+ too by using res->start
which does not include the reg_offset.

Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/omap_hsmmc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 6ac63df645c4..f5de0b7052a5 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1874,7 +1874,7 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 	omap_hsmmc_context_save(host);
 
 	/* This can be removed once we support PBIAS with DT */
-	if (host->dev->of_node && host->mapbase == 0x4809c000)
+	if (host->dev->of_node && res->start == 0x4809c000)
 		host->pbias_disable = 1;
 
 	host->dbclk = clk_get(&pdev->dev, "mmchsdb_fck");
-- 
cgit 


From 0a82e06e6183a252608df48cc4793b83e2d73dfd Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Mon, 21 Oct 2013 00:25:19 +0530
Subject: mmc: omap_hsmmc: context save and restore for DT

We want to get rid of the omap specific platform init code
callbacks as they don't play nice with device tree.

Convert the context loss check to be based on a
register state detection instead.

Cc: Andreas Fenkart <afenkart@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
[add check for CON and HCTL in context save and restore function]
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/omap_hsmmc.c | 52 +++++++++++++++++--------------------------
 1 file changed, 20 insertions(+), 32 deletions(-)

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index f5de0b7052a5..53b53b581687 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -171,6 +171,10 @@ struct omap_hsmmc_host {
 	unsigned char		bus_mode;
 	unsigned char		power_mode;
 	int			suspended;
+	u32			con;
+	u32			hctl;
+	u32			sysctl;
+	u32			capa;
 	int			irq;
 	int			use_dma, dma_ch;
 	struct dma_chan		*tx_chan;
@@ -183,7 +187,6 @@ struct omap_hsmmc_host {
 	int			use_reg;
 	int			req_in_progress;
 	struct omap_hsmmc_next	next_data;
-
 	struct	omap_mmc_platform_data	*pdata;
 };
 
@@ -597,25 +600,20 @@ static void omap_hsmmc_set_bus_mode(struct omap_hsmmc_host *host)
 static int omap_hsmmc_context_restore(struct omap_hsmmc_host *host)
 {
 	struct mmc_ios *ios = &host->mmc->ios;
-	struct omap_mmc_platform_data *pdata = host->pdata;
-	int context_loss = 0;
 	u32 hctl, capa;
 	unsigned long timeout;
 
-	if (pdata->get_context_loss_count) {
-		context_loss = pdata->get_context_loss_count(host->dev);
-		if (context_loss < 0)
-			return 1;
-	}
-
-	dev_dbg(mmc_dev(host->mmc), "context was %slost\n",
-		context_loss == host->context_loss ? "not " : "");
-	if (host->context_loss == context_loss)
-		return 1;
-
 	if (!OMAP_HSMMC_READ(host->base, SYSSTATUS) & RESETDONE)
 		return 1;
 
+	if (host->con == OMAP_HSMMC_READ(host->base, CON) &&
+	    host->hctl == OMAP_HSMMC_READ(host->base, HCTL) &&
+	    host->sysctl == OMAP_HSMMC_READ(host->base, SYSCTL) &&
+	    host->capa == OMAP_HSMMC_READ(host->base, CAPA))
+		return 0;
+
+	host->context_loss++;
+
 	if (host->pdata->controller_flags & OMAP_HSMMC_SUPPORTS_DUAL_VOLT) {
 		if (host->power_mode != MMC_POWER_OFF &&
 		    (1 << ios->vdd) <= MMC_VDD_23_24)
@@ -655,9 +653,8 @@ static int omap_hsmmc_context_restore(struct omap_hsmmc_host *host)
 	omap_hsmmc_set_bus_mode(host);
 
 out:
-	host->context_loss = context_loss;
-
-	dev_dbg(mmc_dev(host->mmc), "context is restored\n");
+	dev_dbg(mmc_dev(host->mmc), "context is restored: restore count %d\n",
+		host->context_loss);
 	return 0;
 }
 
@@ -666,15 +663,10 @@ out:
  */
 static void omap_hsmmc_context_save(struct omap_hsmmc_host *host)
 {
-	struct omap_mmc_platform_data *pdata = host->pdata;
-	int context_loss;
-
-	if (pdata->get_context_loss_count) {
-		context_loss = pdata->get_context_loss_count(host->dev);
-		if (context_loss < 0)
-			return;
-		host->context_loss = context_loss;
-	}
+	host->con =  OMAP_HSMMC_READ(host->base, CON);
+	host->hctl = OMAP_HSMMC_READ(host->base, HCTL);
+	host->sysctl =  OMAP_HSMMC_READ(host->base, SYSCTL);
+	host->capa = OMAP_HSMMC_READ(host->base, CAPA);
 }
 
 #else
@@ -1635,13 +1627,9 @@ static int omap_hsmmc_regs_show(struct seq_file *s, void *data)
 {
 	struct mmc_host *mmc = s->private;
 	struct omap_hsmmc_host *host = mmc_priv(mmc);
-	int context_loss = 0;
-
-	if (host->pdata->get_context_loss_count)
-		context_loss = host->pdata->get_context_loss_count(host->dev);
 
-	seq_printf(s, "mmc%d:\n ctx_loss:\t%d:%d\n\nregs:\n",
-			mmc->index, host->context_loss, context_loss);
+	seq_printf(s, "mmc%d:\n ctx_loss:\t%d\n\nregs:\n",
+			mmc->index, host->context_loss);
 
 	if (host->suspended) {
 		seq_printf(s, "host suspended, can't read registers\n");
-- 
cgit 


From 1e881786c9038cd78dfa325b012f4a00ce1bcfd4 Mon Sep 17 00:00:00 2001
From: Jianpeng Ma <majianpeng@gmail.com>
Date: Mon, 21 Oct 2013 00:25:20 +0530
Subject: mmc: omap_hsmmc: fix timeout for cmd and data soft reset

With HSMMC_HAS_UPDATED_RESET reset of cmd/data (SRC/SRD) can be to
quick and can be missed resulting in wait for software timeout.
With cpu_relax timeout can be long and unpredictable. Use udelay
instead for timeout implementation.

Reported-by: Yuzheng Ma <mayuzheng@kedacom.com>
Tested-by: Yuzheng Ma <mayuzheng@kedacom.com>
Reviewed-by: Hein Tibosch <hein_tibosch@yahoo.es>
Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/omap_hsmmc.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 53b53b581687..4d1170fa34c0 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -119,7 +119,8 @@
 		BRR_EN | BWR_EN | TC_EN | CC_EN)
 
 #define MMC_AUTOSUSPEND_DELAY	100
-#define MMC_TIMEOUT_MS		20
+#define MMC_TIMEOUT_MS		20		/* 20 mSec */
+#define MMC_TIMEOUT_US		20000		/* 20000 micro Sec */
 #define OMAP_MMC_MIN_CLOCK	400000
 #define OMAP_MMC_MAX_CLOCK	52000000
 #define DRIVER_NAME		"omap_hsmmc"
@@ -967,8 +968,7 @@ static inline void omap_hsmmc_reset_controller_fsm(struct omap_hsmmc_host *host,
 						   unsigned long bit)
 {
 	unsigned long i = 0;
-	unsigned long limit = (loops_per_jiffy *
-				msecs_to_jiffies(MMC_TIMEOUT_MS));
+	unsigned long limit = MMC_TIMEOUT_US;
 
 	OMAP_HSMMC_WRITE(host->base, SYSCTL,
 			 OMAP_HSMMC_READ(host->base, SYSCTL) | bit);
@@ -980,13 +980,13 @@ static inline void omap_hsmmc_reset_controller_fsm(struct omap_hsmmc_host *host,
 	if (mmc_slot(host).features & HSMMC_HAS_UPDATED_RESET) {
 		while ((!(OMAP_HSMMC_READ(host->base, SYSCTL) & bit))
 					&& (i++ < limit))
-			cpu_relax();
+			udelay(1);
 	}
 	i = 0;
 
 	while ((OMAP_HSMMC_READ(host->base, SYSCTL) & bit) &&
 		(i++ < limit))
-		cpu_relax();
+		udelay(1);
 
 	if (OMAP_HSMMC_READ(host->base, SYSCTL) & bit)
 		dev_err(mmc_dev(host->mmc),
-- 
cgit 


From ed164182154d11589a33710a9d04eafd6215d6e5 Mon Sep 17 00:00:00 2001
From: Balaji T K <balajitk@ti.com>
Date: Mon, 21 Oct 2013 00:25:21 +0530
Subject: mmc: omap_hsmmc: correct max value of clkd

clock divisor can take a max value of 1023.  Update code so that card
init can be handled at f_min even at higher IP clock frequencies from
which clock to the card is derived.

Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/omap_hsmmc.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 4d1170fa34c0..fbd2d89017a9 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -75,6 +75,7 @@
 #define ICE			0x1
 #define ICS			0x2
 #define CEN			(1 << 2)
+#define CLKD_MAX		0x3FF		/* max clock divisor: 1023 */
 #define CLKD_MASK		0x0000FFC0
 #define CLKD_SHIFT		6
 #define DTO_MASK		0x000F0000
@@ -497,8 +498,8 @@ static u16 calc_divisor(struct omap_hsmmc_host *host, struct mmc_ios *ios)
 
 	if (ios->clock) {
 		dsor = DIV_ROUND_UP(clk_get_rate(host->fclk), ios->clock);
-		if (dsor > 250)
-			dsor = 250;
+		if (dsor > CLKD_MAX)
+			dsor = CLKD_MAX;
 	}
 
 	return dsor;
-- 
cgit 


From 6a6caac6debac9c63a3a77269db8820b81bec143 Mon Sep 17 00:00:00 2001
From: Balaji T K <balajitk@ti.com>
Date: Mon, 21 Oct 2013 00:25:22 +0530
Subject: mmc: omap_hsmmc: remove unused no_off

With lazy disable gone, no_off is not used any more in omap_hsmmc

Signed-off-by: Balaji T K <balajitk@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/omap_hsmmc.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index fbd2d89017a9..540dead767b9 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1827,13 +1827,6 @@ static int omap_hsmmc_probe(struct platform_device *pdev)
 
 	mmc->ops	= &omap_hsmmc_ops;
 
-	/*
-	 * If regulator_disable can only put vcc_aux to sleep then there is
-	 * no off state.
-	 */
-	if (mmc_slot(host).vcc_aux_disable_is_sleep)
-		mmc_slot(host).no_off = 1;
-
 	mmc->f_min = OMAP_MMC_MIN_CLOCK;
 
 	if (pdata->max_freq > 0)
-- 
cgit 


From d052068a0ba43273eb9cfe32460e9445ef75fdc5 Mon Sep 17 00:00:00 2001
From: Eric Ernst <eric.ernst@linux.intel.com>
Date: Mon, 21 Oct 2013 09:54:41 -0700
Subject: mmc: sdhci-pci: Add SDIO/MMC device ID support for Intel Clovertrail

This patch adds intel_mid clovertrail SDIO and eMMC device
IDs to the sdhci-pci driver.

Signed-off-by: Eric Ernst <eric.ernst@linux.intel.com>
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci-pci.c | 46 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index 06f026a537b2..8f753811fc7a 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -38,6 +38,11 @@
 #define PCI_DEVICE_ID_INTEL_BYT_SD	0x0f16
 #define PCI_DEVICE_ID_INTEL_BYT_EMMC2	0x0f50
 #define PCI_DEVICE_ID_INTEL_MRFL_MMC	0x1190
+#define PCI_DEVICE_ID_INTEL_CLV_SDIO0	0x08f9
+#define PCI_DEVICE_ID_INTEL_CLV_SDIO1	0x08fa
+#define PCI_DEVICE_ID_INTEL_CLV_SDIO2	0x08fb
+#define PCI_DEVICE_ID_INTEL_CLV_EMMC0	0x08e5
+#define PCI_DEVICE_ID_INTEL_CLV_EMMC1	0x08e6
 
 /*
  * PCI registers
@@ -962,6 +967,47 @@ static const struct pci_device_id pci_ids[] = {
 		.driver_data	= (kernel_ulong_t)&sdhci_intel_byt_emmc,
 	},
 
+
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_CLV_SDIO0,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.driver_data	= (kernel_ulong_t)&sdhci_intel_mfd_sd,
+	},
+
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_CLV_SDIO1,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.driver_data	= (kernel_ulong_t)&sdhci_intel_mfd_sdio,
+	},
+
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_CLV_SDIO2,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.driver_data	= (kernel_ulong_t)&sdhci_intel_mfd_sdio,
+	},
+
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_CLV_EMMC0,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.driver_data	= (kernel_ulong_t)&sdhci_intel_mfd_emmc,
+	},
+
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_CLV_EMMC1,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.driver_data	= (kernel_ulong_t)&sdhci_intel_mfd_emmc,
+	},
+
 	{
 		.vendor		= PCI_VENDOR_ID_INTEL,
 		.device		= PCI_DEVICE_ID_INTEL_MRFL_MMC,
-- 
cgit 


From 878e200bbb1fbde9f21582decab95b178e5a3b83 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Mon, 9 Sep 2013 11:57:57 +0200
Subject: mmc: core: Do not poll for busy with status cmd for all switch cmds

Some switch operations like poweroff notify, shall according to the
spec not be followed by any other new commands. For these cases and
when the host does'nt support MMC_CAP_WAIT_WHILE_BUSY, we must not
send status commands to poll for busy detection. Instead wait for
the stated timeout from the EXT_CSD before completing the request.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/core/core.c    |  2 +-
 drivers/mmc/core/mmc.c     |  6 +++---
 drivers/mmc/core/mmc_ops.c | 23 ++++++++++++++++++-----
 include/linux/mmc/core.h   |  3 ++-
 4 files changed, 24 insertions(+), 10 deletions(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 006ead2fb701..0292ad448b07 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -301,7 +301,7 @@ void mmc_start_bkops(struct mmc_card *card, bool from_exception)
 	}
 
 	err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
-			EXT_CSD_BKOPS_START, 1, timeout, use_busy_signal);
+			EXT_CSD_BKOPS_START, 1, timeout, use_busy_signal, true);
 	if (err) {
 		pr_warn("%s: Error %d starting bkops\n",
 			mmc_hostname(card->host), err);
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 6d02012a1d0b..8f0c51686849 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1404,9 +1404,9 @@ static int mmc_poweroff_notify(struct mmc_card *card, unsigned int notify_type)
 	if (notify_type == EXT_CSD_POWER_OFF_LONG)
 		timeout = card->ext_csd.power_off_longtime;
 
-	err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
-			 EXT_CSD_POWER_OFF_NOTIFICATION,
-			 notify_type, timeout);
+	err = __mmc_switch(card, EXT_CSD_CMD_SET_NORMAL,
+			EXT_CSD_POWER_OFF_NOTIFICATION,
+			notify_type, timeout, true, false);
 	if (err)
 		pr_err("%s: Power Off Notification timed out, %u\n",
 		       mmc_hostname(card->host), timeout);
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index 37f7d7059ab7..aae8d8b45549 100644
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -404,11 +404,12 @@ int mmc_spi_set_crc(struct mmc_host *host, int use_crc)
  *	@timeout_ms: timeout (ms) for operation performed by register write,
  *                   timeout of zero implies maximum possible timeout
  *	@use_busy_signal: use the busy signal as response type
+ *	@send_status: send status cmd to poll for busy
  *
  *	Modifies the EXT_CSD register for selected card.
  */
 int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
-	       unsigned int timeout_ms, bool use_busy_signal)
+		unsigned int timeout_ms, bool use_busy_signal, bool send_status)
 {
 	int err;
 	struct mmc_command cmd = {0};
@@ -454,14 +455,26 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
 
 	timeout = jiffies + msecs_to_jiffies(MMC_OPS_TIMEOUT_MS);
 	do {
-		err = __mmc_send_status(card, &status, ignore_crc);
-		if (err)
-			return err;
+		if (send_status) {
+			err = __mmc_send_status(card, &status, ignore_crc);
+			if (err)
+				return err;
+		}
 		if (card->host->caps & MMC_CAP_WAIT_WHILE_BUSY)
 			break;
 		if (mmc_host_is_spi(card->host))
 			break;
 
+		/*
+		 * We are not allowed to issue a status command and the host
+		 * does'nt support MMC_CAP_WAIT_WHILE_BUSY, then we can only
+		 * rely on waiting for the stated timeout to be sufficient.
+		 */
+		if (!send_status) {
+			mmc_delay(timeout_ms);
+			return 0;
+		}
+
 		/* Timeout if the device never leaves the program state. */
 		if (time_after(jiffies, timeout)) {
 			pr_err("%s: Card stuck in programming state! %s\n",
@@ -488,7 +501,7 @@ EXPORT_SYMBOL_GPL(__mmc_switch);
 int mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
 		unsigned int timeout_ms)
 {
-	return __mmc_switch(card, set, index, value, timeout_ms, true);
+	return __mmc_switch(card, set, index, value, timeout_ms, true, true);
 }
 EXPORT_SYMBOL_GPL(mmc_switch);
 
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index a00fc49c8434..87079fc38011 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -151,7 +151,8 @@ extern int mmc_app_cmd(struct mmc_host *, struct mmc_card *);
 extern int mmc_wait_for_app_cmd(struct mmc_host *, struct mmc_card *,
 	struct mmc_command *, int);
 extern void mmc_start_bkops(struct mmc_card *card, bool from_exception);
-extern int __mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int, bool);
+extern int __mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int, bool,
+			bool);
 extern int mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int);
 extern int mmc_send_ext_csd(struct mmc_card *card, u8 *ext_csd);
 
-- 
cgit 


From 4a065193c46a16f1ddf20622c7011c8f327e0478 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Thu, 12 Sep 2013 14:36:53 +0200
Subject: mmc: core: Let mmc_power_up|cycle take ocr as parameter

As a step to fixup the setup of the negotiated ocr mask, we need the
mmc_power_up|cycle functions to take the ocr as a parameter.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/core/core.c | 24 ++++++++----------------
 drivers/mmc/core/core.h |  4 ++--
 drivers/mmc/core/mmc.c  |  4 ++--
 drivers/mmc/core/sd.c   |  4 ++--
 drivers/mmc/core/sdio.c |  4 ++--
 5 files changed, 16 insertions(+), 24 deletions(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 0292ad448b07..b66e7ab2ad43 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1479,7 +1479,7 @@ power_cycle:
 	if (err) {
 		pr_debug("%s: Signal voltage switch failed, "
 			"power cycling card\n", mmc_hostname(host));
-		mmc_power_cycle(host);
+		mmc_power_cycle(host, host->ocr);
 	}
 
 	mmc_host_clk_release(host);
@@ -1520,22 +1520,14 @@ void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type)
  * If a host does all the power sequencing itself, ignore the
  * initial MMC_POWER_UP stage.
  */
-void mmc_power_up(struct mmc_host *host)
+void mmc_power_up(struct mmc_host *host, u32 ocr)
 {
-	int bit;
-
 	if (host->ios.power_mode == MMC_POWER_ON)
 		return;
 
 	mmc_host_clk_hold(host);
 
-	/* If ocr is set, we use it */
-	if (host->ocr)
-		bit = ffs(host->ocr) - 1;
-	else
-		bit = fls(host->ocr_avail) - 1;
-
-	host->ios.vdd = bit;
+	host->ios.vdd = fls(ocr) - 1;
 	if (mmc_host_is_spi(host))
 		host->ios.chip_select = MMC_CS_HIGH;
 	else
@@ -1605,12 +1597,12 @@ void mmc_power_off(struct mmc_host *host)
 	mmc_host_clk_release(host);
 }
 
-void mmc_power_cycle(struct mmc_host *host)
+void mmc_power_cycle(struct mmc_host *host, u32 ocr)
 {
 	mmc_power_off(host);
 	/* Wait at least 1 ms according to SD spec */
 	mmc_delay(1);
-	mmc_power_up(host);
+	mmc_power_up(host, ocr);
 }
 
 /*
@@ -2309,7 +2301,7 @@ static int mmc_rescan_try_freq(struct mmc_host *host, unsigned freq)
 	pr_info("%s: %s: trying to init card at %u Hz\n",
 		mmc_hostname(host), __func__, host->f_init);
 #endif
-	mmc_power_up(host);
+	mmc_power_up(host, host->ocr_avail);
 
 	/*
 	 * Some eMMCs (with VCCQ always on) may not be reset after power up, so
@@ -2479,7 +2471,7 @@ void mmc_start_host(struct mmc_host *host)
 	if (host->caps2 & MMC_CAP2_NO_PRESCAN_POWERUP)
 		mmc_power_off(host);
 	else
-		mmc_power_up(host);
+		mmc_power_up(host, host->ocr_avail);
 	mmc_detect_change(host, 0);
 }
 
@@ -2558,7 +2550,7 @@ int mmc_power_restore_host(struct mmc_host *host)
 		return -EINVAL;
 	}
 
-	mmc_power_up(host);
+	mmc_power_up(host, host->ocr);
 	ret = host->bus_ops->power_restore(host);
 
 	mmc_bus_put(host);
diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h
index 5345d156493e..502769a71821 100644
--- a/drivers/mmc/core/core.h
+++ b/drivers/mmc/core/core.h
@@ -46,9 +46,9 @@ int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage);
 int __mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage);
 void mmc_set_timing(struct mmc_host *host, unsigned int timing);
 void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type);
-void mmc_power_up(struct mmc_host *host);
+void mmc_power_up(struct mmc_host *host, u32 ocr);
 void mmc_power_off(struct mmc_host *host);
-void mmc_power_cycle(struct mmc_host *host);
+void mmc_power_cycle(struct mmc_host *host, u32 ocr);
 
 static inline void mmc_delay(unsigned int ms)
 {
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 8f0c51686849..75c66f975e24 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1533,7 +1533,7 @@ static int mmc_resume(struct mmc_host *host)
 	BUG_ON(!host->card);
 
 	mmc_claim_host(host);
-	mmc_power_up(host);
+	mmc_power_up(host, host->ocr);
 	mmc_select_voltage(host, host->ocr);
 	err = mmc_init_card(host, host->ocr, host->card);
 	mmc_release_host(host);
@@ -1579,7 +1579,7 @@ static int mmc_runtime_resume(struct mmc_host *host)
 
 	mmc_claim_host(host);
 
-	mmc_power_up(host);
+	mmc_power_up(host, host->ocr);
 	err = mmc_resume(host);
 	if (err)
 		pr_err("%s: error %d doing aggessive resume\n",
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 5e8823dc3ef6..af55e9e0819c 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -1099,7 +1099,7 @@ static int mmc_sd_resume(struct mmc_host *host)
 	BUG_ON(!host->card);
 
 	mmc_claim_host(host);
-	mmc_power_up(host);
+	mmc_power_up(host, host->ocr);
 	mmc_select_voltage(host, host->ocr);
 	err = mmc_sd_init_card(host, host->ocr, host->card);
 	mmc_release_host(host);
@@ -1144,7 +1144,7 @@ static int mmc_sd_runtime_resume(struct mmc_host *host)
 
 	mmc_claim_host(host);
 
-	mmc_power_up(host);
+	mmc_power_up(host, host->ocr);
 	err = mmc_sd_resume(host);
 	if (err)
 		pr_err("%s: error %d doing aggessive resume\n",
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 80d89cff7306..355c95270d48 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -981,7 +981,7 @@ static int mmc_sdio_resume(struct mmc_host *host)
 
 	/* Restore power if needed */
 	if (!mmc_card_keep_power(host)) {
-		mmc_power_up(host);
+		mmc_power_up(host, host->ocr);
 		mmc_select_voltage(host, host->ocr);
 		/*
 		 * Tell runtime PM core we just powered up the card,
@@ -1108,7 +1108,7 @@ static int mmc_sdio_runtime_suspend(struct mmc_host *host)
 static int mmc_sdio_runtime_resume(struct mmc_host *host)
 {
 	/* Restore power and re-initialize. */
-	mmc_power_up(host);
+	mmc_power_up(host, host->ocr);
 	return mmc_sdio_power_restore(host);
 }
 
-- 
cgit 


From 0f791fdad82a02af013e4fc8c385dc690080c366 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Thu, 12 Sep 2013 15:36:34 +0200
Subject: mmc: core: Let mmc_set_signal_voltage take ocr as parameter

This is yet another step of restructure code to be able to fixup the
setup of the negotiated ocr mask.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/core/core.c | 4 ++--
 drivers/mmc/core/core.h | 2 +-
 drivers/mmc/core/sd.c   | 3 ++-
 drivers/mmc/core/sdio.c | 3 ++-
 4 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index b66e7ab2ad43..5909ba46b8f2 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1397,7 +1397,7 @@ int __mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage)
 
 }
 
-int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage)
+int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage, u32 ocr)
 {
 	struct mmc_command cmd = {0};
 	int err = 0;
@@ -1479,7 +1479,7 @@ power_cycle:
 	if (err) {
 		pr_debug("%s: Signal voltage switch failed, "
 			"power cycling card\n", mmc_hostname(host));
-		mmc_power_cycle(host, host->ocr);
+		mmc_power_cycle(host, ocr);
 	}
 
 	mmc_host_clk_release(host);
diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h
index 502769a71821..443a584660f0 100644
--- a/drivers/mmc/core/core.h
+++ b/drivers/mmc/core/core.h
@@ -42,7 +42,7 @@ void mmc_set_ungated(struct mmc_host *host);
 void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode);
 void mmc_set_bus_width(struct mmc_host *host, unsigned int width);
 u32 mmc_select_voltage(struct mmc_host *host, u32 ocr);
-int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage);
+int mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage, u32 ocr);
 int __mmc_set_signal_voltage(struct mmc_host *host, int signal_voltage);
 void mmc_set_timing(struct mmc_host *host, unsigned int timing);
 void mmc_set_driver_type(struct mmc_host *host, unsigned int drv_type);
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index af55e9e0819c..5818887fffb3 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -773,7 +773,8 @@ try_again:
 	 */
 	if (!mmc_host_is_spi(host) && rocr &&
 	   ((*rocr & 0x41000000) == 0x41000000)) {
-		err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180);
+		err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180,
+					host->ocr);
 		if (err == -EAGAIN) {
 			retries--;
 			goto try_again;
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 355c95270d48..15cbc418c95f 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -664,7 +664,8 @@ try_again:
 	 * it.
 	 */
 	if (!powered_resume && (ocr & R4_18V_PRESENT) && mmc_host_uhs(host)) {
-		err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180);
+		err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180,
+					host->ocr);
 		if (err == -EAGAIN) {
 			sdio_reset(host);
 			mmc_go_idle(host);
-- 
cgit 


From ec2ed7006263bd4224083aff7833bd791ac35d65 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Thu, 12 Sep 2013 16:38:56 +0200
Subject: mmc: core: Remove unnecessary retry mechanism at SDIO attach

The retry and fallback mechanism when failing to switch to 1.8V
signaling voltage is handled by the SDIO card init function. Thus we
can remove the duplicated old code from the attach function.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/core/sdio.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 15cbc418c95f..26b13169156c 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -1175,17 +1175,9 @@ int mmc_attach_sdio(struct mmc_host *host)
 		host->ocr |= R4_18V_PRESENT;
 
 	err = mmc_sdio_init_card(host, host->ocr, NULL, 0);
-	if (err) {
-		if (err == -EAGAIN) {
-			/*
-			 * Retry initialization with S18R set to 0.
-			 */
-			host->ocr &= ~R4_18V_PRESENT;
-			err = mmc_sdio_init_card(host, host->ocr, NULL, 0);
-		}
-		if (err)
-			goto err;
-	}
+	if (err)
+		goto err;
+
 	card = host->card;
 
 	/*
-- 
cgit 


From db4a0d0512253c23a052ae650395c07d956118b3 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Fri, 13 Sep 2013 10:49:34 +0200
Subject: mmc: core: Cleanup code for setting ocr mask for SDIO

At several places in mmc_sdio_init_card function the cached mask in
host->ocr were being updated. To simplify code, we make use of an
local ocr parameter instead.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/core/sdio.c | 26 ++++++++++----------------
 1 file changed, 10 insertions(+), 16 deletions(-)

diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 26b13169156c..9587d9f8cf1c 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -593,23 +593,27 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr,
 	struct mmc_card *card;
 	int err;
 	int retries = 10;
+	u32 rocr = 0;
 
 	BUG_ON(!host);
 	WARN_ON(!host->claimed);
 
+	/* to query card if 1.8V signalling is supported */
+	if (mmc_host_uhs(host))
+		ocr |= R4_18V_PRESENT;
+
 try_again:
 	if (!retries) {
 		pr_warning("%s: Skipping voltage switch\n",
 				mmc_hostname(host));
 		ocr &= ~R4_18V_PRESENT;
-		host->ocr &= ~R4_18V_PRESENT;
 	}
 
 	/*
 	 * Inform the card of the voltage
 	 */
 	if (!powered_resume) {
-		err = mmc_send_io_op_cond(host, host->ocr, &ocr);
+		err = mmc_send_io_op_cond(host, ocr, &rocr);
 		if (err)
 			goto err;
 	}
@@ -632,8 +636,8 @@ try_again:
 		goto err;
 	}
 
-	if ((ocr & R4_MEMORY_PRESENT) &&
-	    mmc_sd_get_cid(host, host->ocr & ocr, card->raw_cid, NULL) == 0) {
+	if ((rocr & R4_MEMORY_PRESENT) &&
+	    mmc_sd_get_cid(host, ocr & rocr, card->raw_cid, NULL) == 0) {
 		card->type = MMC_TYPE_SD_COMBO;
 
 		if (oldcard && (oldcard->type != MMC_TYPE_SD_COMBO ||
@@ -663,9 +667,9 @@ try_again:
 	 * systems that claim 1.8v signalling in fact do not support
 	 * it.
 	 */
-	if (!powered_resume && (ocr & R4_18V_PRESENT) && mmc_host_uhs(host)) {
+	if (!powered_resume && (rocr & ocr & R4_18V_PRESENT)) {
 		err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180,
-					host->ocr);
+					ocr);
 		if (err == -EAGAIN) {
 			sdio_reset(host);
 			mmc_go_idle(host);
@@ -675,12 +679,10 @@ try_again:
 			goto try_again;
 		} else if (err) {
 			ocr &= ~R4_18V_PRESENT;
-			host->ocr &= ~R4_18V_PRESENT;
 		}
 		err = 0;
 	} else {
 		ocr &= ~R4_18V_PRESENT;
-		host->ocr &= ~R4_18V_PRESENT;
 	}
 
 	/*
@@ -1084,10 +1086,6 @@ static int mmc_sdio_power_restore(struct mmc_host *host)
 		goto out;
 	}
 
-	if (mmc_host_uhs(host))
-		/* to query card if 1.8V signalling is supported */
-		host->ocr |= R4_18V_PRESENT;
-
 	ret = mmc_sdio_init_card(host, host->ocr, host->card,
 				mmc_card_keep_power(host));
 	if (!ret && host->sdio_irqs)
@@ -1170,10 +1168,6 @@ int mmc_attach_sdio(struct mmc_host *host)
 	/*
 	 * Detect and init the card.
 	 */
-	if (mmc_host_uhs(host))
-		/* to query card if 1.8V signalling is supported */
-		host->ocr |= R4_18V_PRESENT;
-
 	err = mmc_sdio_init_card(host, host->ocr, NULL, 0);
 	if (err)
 		goto err;
-- 
cgit 


From 6904115095ad60ced638eb1e36e0e4e5e7de00b0 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Fri, 13 Sep 2013 11:31:33 +0200
Subject: mmc: core: Move cached value of the negotiated ocr mask to card
 struct

The negotiated ocr mask is directly related to the card. Once a card
gets removed, the mask shall be dropped. By moving the cache of the ocr
mask from the host struct to the card struct we have accomplished this.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/core/core.c  |  7 ++++---
 drivers/mmc/core/mmc.c   | 19 ++++++++++---------
 drivers/mmc/core/sd.c    | 22 ++++++++++++----------
 drivers/mmc/core/sdio.c  | 26 ++++++++++++++------------
 include/linux/mmc/card.h |  1 +
 include/linux/mmc/host.h |  1 -
 6 files changed, 41 insertions(+), 35 deletions(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 5909ba46b8f2..529d2eff6095 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1574,9 +1574,10 @@ void mmc_power_off(struct mmc_host *host)
 
 	/*
 	 * Reset ocr mask to be the highest possible voltage supported for
-	 * this mmc host. This value will be used at next power up.
+	 * this card. This value will be used at next power up.
 	 */
-	host->ocr = 1 << (fls(host->ocr_avail) - 1);
+	if (host->card)
+		host->card->ocr = 1 << (fls(host->ocr_avail) - 1);
 
 	if (!mmc_host_is_spi(host)) {
 		host->ios.bus_mode = MMC_BUSMODE_OPENDRAIN;
@@ -2550,7 +2551,7 @@ int mmc_power_restore_host(struct mmc_host *host)
 		return -EINVAL;
 	}
 
-	mmc_power_up(host, host->ocr);
+	mmc_power_up(host, host->card->ocr);
 	ret = host->bus_ops->power_restore(host);
 
 	mmc_bus_put(host);
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 75c66f975e24..eb7161c11587 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -934,6 +934,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
 			goto err;
 		}
 
+		card->ocr = ocr;
 		card->type = MMC_TYPE_MMC;
 		card->rca = 1;
 		memcpy(card->raw_cid, cid, sizeof(card->raw_cid));
@@ -1533,9 +1534,9 @@ static int mmc_resume(struct mmc_host *host)
 	BUG_ON(!host->card);
 
 	mmc_claim_host(host);
-	mmc_power_up(host, host->ocr);
-	mmc_select_voltage(host, host->ocr);
-	err = mmc_init_card(host, host->ocr, host->card);
+	mmc_power_up(host, host->card->ocr);
+	mmc_select_voltage(host, host->card->ocr);
+	err = mmc_init_card(host, host->card->ocr, host->card);
 	mmc_release_host(host);
 
 	return err;
@@ -1579,7 +1580,7 @@ static int mmc_runtime_resume(struct mmc_host *host)
 
 	mmc_claim_host(host);
 
-	mmc_power_up(host, host->ocr);
+	mmc_power_up(host, host->card->ocr);
 	err = mmc_resume(host);
 	if (err)
 		pr_err("%s: error %d doing aggessive resume\n",
@@ -1595,7 +1596,7 @@ static int mmc_power_restore(struct mmc_host *host)
 
 	host->card->state &= ~(MMC_STATE_HIGHSPEED | MMC_STATE_HIGHSPEED_200);
 	mmc_claim_host(host);
-	ret = mmc_init_card(host, host->ocr, host->card);
+	ret = mmc_init_card(host, host->card->ocr, host->card);
 	mmc_release_host(host);
 
 	return ret;
@@ -1640,7 +1641,7 @@ static void mmc_attach_bus_ops(struct mmc_host *host)
 int mmc_attach_mmc(struct mmc_host *host)
 {
 	int err;
-	u32 ocr;
+	u32 ocr, rocr;
 
 	BUG_ON(!host);
 	WARN_ON(!host->claimed);
@@ -1677,12 +1678,12 @@ int mmc_attach_mmc(struct mmc_host *host)
 		ocr &= ~0x7F;
 	}
 
-	host->ocr = mmc_select_voltage(host, ocr);
+	rocr = mmc_select_voltage(host, ocr);
 
 	/*
 	 * Can we support the voltage of the card?
 	 */
-	if (!host->ocr) {
+	if (!rocr) {
 		err = -EINVAL;
 		goto err;
 	}
@@ -1690,7 +1691,7 @@ int mmc_attach_mmc(struct mmc_host *host)
 	/*
 	 * Detect and init the card.
 	 */
-	err = mmc_init_card(host, host->ocr, NULL);
+	err = mmc_init_card(host, rocr, NULL);
 	if (err)
 		goto err;
 
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 5818887fffb3..398065c57edf 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -721,6 +721,7 @@ int mmc_sd_get_cid(struct mmc_host *host, u32 ocr, u32 *cid, u32 *rocr)
 	int err;
 	u32 max_current;
 	int retries = 10;
+	u32 pocr = ocr;
 
 try_again:
 	if (!retries) {
@@ -774,7 +775,7 @@ try_again:
 	if (!mmc_host_is_spi(host) && rocr &&
 	   ((*rocr & 0x41000000) == 0x41000000)) {
 		err = mmc_set_signal_voltage(host, MMC_SIGNAL_VOLTAGE_180,
-					host->ocr);
+					pocr);
 		if (err == -EAGAIN) {
 			retries--;
 			goto try_again;
@@ -936,6 +937,7 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
 		if (IS_ERR(card))
 			return PTR_ERR(card);
 
+		card->ocr = ocr;
 		card->type = MMC_TYPE_SD;
 		memcpy(card->raw_cid, cid, sizeof(card->raw_cid));
 	}
@@ -1100,9 +1102,9 @@ static int mmc_sd_resume(struct mmc_host *host)
 	BUG_ON(!host->card);
 
 	mmc_claim_host(host);
-	mmc_power_up(host, host->ocr);
-	mmc_select_voltage(host, host->ocr);
-	err = mmc_sd_init_card(host, host->ocr, host->card);
+	mmc_power_up(host, host->card->ocr);
+	mmc_select_voltage(host, host->card->ocr);
+	err = mmc_sd_init_card(host, host->card->ocr, host->card);
 	mmc_release_host(host);
 
 	return err;
@@ -1145,7 +1147,7 @@ static int mmc_sd_runtime_resume(struct mmc_host *host)
 
 	mmc_claim_host(host);
 
-	mmc_power_up(host, host->ocr);
+	mmc_power_up(host, host->card->ocr);
 	err = mmc_sd_resume(host);
 	if (err)
 		pr_err("%s: error %d doing aggessive resume\n",
@@ -1161,7 +1163,7 @@ static int mmc_sd_power_restore(struct mmc_host *host)
 
 	host->card->state &= ~MMC_STATE_HIGHSPEED;
 	mmc_claim_host(host);
-	ret = mmc_sd_init_card(host, host->ocr, host->card);
+	ret = mmc_sd_init_card(host, host->card->ocr, host->card);
 	mmc_release_host(host);
 
 	return ret;
@@ -1206,7 +1208,7 @@ static void mmc_sd_attach_bus_ops(struct mmc_host *host)
 int mmc_attach_sd(struct mmc_host *host)
 {
 	int err;
-	u32 ocr;
+	u32 ocr, rocr;
 
 	BUG_ON(!host);
 	WARN_ON(!host->claimed);
@@ -1249,12 +1251,12 @@ int mmc_attach_sd(struct mmc_host *host)
 		ocr &= ~MMC_VDD_165_195;
 	}
 
-	host->ocr = mmc_select_voltage(host, ocr);
+	rocr = mmc_select_voltage(host, ocr);
 
 	/*
 	 * Can we support the voltage(s) of the card(s)?
 	 */
-	if (!host->ocr) {
+	if (!rocr) {
 		err = -EINVAL;
 		goto err;
 	}
@@ -1262,7 +1264,7 @@ int mmc_attach_sd(struct mmc_host *host)
 	/*
 	 * Detect and init the card.
 	 */
-	err = mmc_sd_init_card(host, host->ocr, NULL);
+	err = mmc_sd_init_card(host, rocr, NULL);
 	if (err)
 		goto err;
 
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 9587d9f8cf1c..e0a135a635f5 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -594,6 +594,7 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr,
 	int err;
 	int retries = 10;
 	u32 rocr = 0;
+	u32 ocr_card = ocr;
 
 	BUG_ON(!host);
 	WARN_ON(!host->claimed);
@@ -762,6 +763,7 @@ try_again:
 
 		card = oldcard;
 	}
+	card->ocr = ocr_card;
 	mmc_fixup_device(card, NULL);
 
 	if (card->type == MMC_TYPE_SD_COMBO) {
@@ -984,8 +986,8 @@ static int mmc_sdio_resume(struct mmc_host *host)
 
 	/* Restore power if needed */
 	if (!mmc_card_keep_power(host)) {
-		mmc_power_up(host, host->ocr);
-		mmc_select_voltage(host, host->ocr);
+		mmc_power_up(host, host->card->ocr);
+		mmc_select_voltage(host, host->card->ocr);
 		/*
 		 * Tell runtime PM core we just powered up the card,
 		 * since it still believes the card is powered off.
@@ -1003,7 +1005,7 @@ static int mmc_sdio_resume(struct mmc_host *host)
 	if (mmc_card_is_removable(host) || !mmc_card_keep_power(host)) {
 		sdio_reset(host);
 		mmc_go_idle(host);
-		err = mmc_sdio_init_card(host, host->ocr, host->card,
+		err = mmc_sdio_init_card(host, host->card->ocr, host->card,
 					mmc_card_keep_power(host));
 	} else if (mmc_card_keep_power(host) && mmc_card_wake_sdio_irq(host)) {
 		/* We may have switched to 1-bit mode during suspend */
@@ -1043,7 +1045,7 @@ static int mmc_sdio_resume(struct mmc_host *host)
 static int mmc_sdio_power_restore(struct mmc_host *host)
 {
 	int ret;
-	u32 ocr;
+	u32 ocr, rocr;
 
 	BUG_ON(!host);
 	BUG_ON(!host->card);
@@ -1080,13 +1082,13 @@ static int mmc_sdio_power_restore(struct mmc_host *host)
 	if (host->ocr_avail_sdio)
 		host->ocr_avail = host->ocr_avail_sdio;
 
-	host->ocr = mmc_select_voltage(host, ocr & ~0x7F);
-	if (!host->ocr) {
+	rocr = mmc_select_voltage(host, ocr & ~0x7F);
+	if (!rocr) {
 		ret = -EINVAL;
 		goto out;
 	}
 
-	ret = mmc_sdio_init_card(host, host->ocr, host->card,
+	ret = mmc_sdio_init_card(host, rocr, host->card,
 				mmc_card_keep_power(host));
 	if (!ret && host->sdio_irqs)
 		mmc_signal_sdio_irq(host);
@@ -1107,7 +1109,7 @@ static int mmc_sdio_runtime_suspend(struct mmc_host *host)
 static int mmc_sdio_runtime_resume(struct mmc_host *host)
 {
 	/* Restore power and re-initialize. */
-	mmc_power_up(host, host->ocr);
+	mmc_power_up(host, host->card->ocr);
 	return mmc_sdio_power_restore(host);
 }
 
@@ -1130,7 +1132,7 @@ static const struct mmc_bus_ops mmc_sdio_ops = {
 int mmc_attach_sdio(struct mmc_host *host)
 {
 	int err, i, funcs;
-	u32 ocr;
+	u32 ocr, rocr;
 	struct mmc_card *card;
 
 	BUG_ON(!host);
@@ -1155,12 +1157,12 @@ int mmc_attach_sdio(struct mmc_host *host)
 		ocr &= ~0x7F;
 	}
 
-	host->ocr = mmc_select_voltage(host, ocr);
+	rocr = mmc_select_voltage(host, ocr);
 
 	/*
 	 * Can we support the voltage(s) of the card(s)?
 	 */
-	if (!host->ocr) {
+	if (!rocr) {
 		err = -EINVAL;
 		goto err;
 	}
@@ -1168,7 +1170,7 @@ int mmc_attach_sdio(struct mmc_host *host)
 	/*
 	 * Detect and init the card.
 	 */
-	err = mmc_sdio_init_card(host, host->ocr, NULL, 0);
+	err = mmc_sdio_init_card(host, rocr, NULL, 0);
 	if (err)
 		goto err;
 
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index f42cdbd8ac21..33d9a74f92e6 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -240,6 +240,7 @@ struct mmc_part {
 struct mmc_card {
 	struct mmc_host		*host;		/* the host this device belongs to */
 	struct device		dev;		/* the device */
+	u32			ocr;		/* the current OCR setting */
 	unsigned int		rca;		/* relative card address of device */
 	unsigned int		type;		/* card type */
 #define MMC_TYPE_MMC		0		/* MMC card */
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 3b0c33ae13e1..1c91bbbb01c3 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -309,7 +309,6 @@ struct mmc_host {
 	spinlock_t		lock;		/* lock for claim and bus ops */
 
 	struct mmc_ios		ios;		/* current io bus settings */
-	u32			ocr;		/* the current OCR setting */
 
 	/* group bitfields together to minimize padding */
 	unsigned int		use_spi_crc:1;
-- 
cgit 


From ce69d37b7d8fa692c45d71d94aa0c921859b82ce Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Mon, 16 Sep 2013 11:28:42 +0200
Subject: mmc: core: Prevent violation of specs while initializing cards

According to eMMC/SD/SDIO specs, the VDD (VCC) voltage level must be
maintained during the initialization sequence. If we want/need to tune
the voltage level, a complete power cycle of the card must be executed.

Most host drivers conforms to the specifications by only allowing to
change VDD voltage level at the MMC_POWER_UP state, but some also cares
about MMC_POWER_ON state, which they should'nt. This patch will not
break those drivers, but they could clean up code to better reflect
what is expected from the protocol layer.

A big re-work of the mmc_select_voltage function is done to only change
VDD voltage level if the host supports MMC_CAP2_FULL_PWR_CYCLE.
Otherwise only validation of the host and card ocr mask will be done.

A very nice side-effect of this patch is that we now don't need to
reset the negotiated ocr mask at the mmc_power_off function, since now
it will actually reflect the present voltage level, which safely can be
used at the next power up and re-initialization. Moreover, we then only
need to execute mmc_select_voltage from the attach sequence.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/core/core.c | 31 +++++++++++--------------------
 drivers/mmc/core/mmc.c  |  1 -
 drivers/mmc/core/sd.c   |  1 -
 drivers/mmc/core/sdio.c | 17 ++---------------
 4 files changed, 13 insertions(+), 37 deletions(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 529d2eff6095..63672aba0e98 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1358,21 +1358,20 @@ u32 mmc_select_voltage(struct mmc_host *host, u32 ocr)
 	int bit;
 
 	ocr &= host->ocr_avail;
+	if (!ocr) {
+		dev_warn(mmc_dev(host), "no support for card's volts\n");
+		return 0;
+	}
 
-	bit = ffs(ocr);
-	if (bit) {
-		bit -= 1;
-
+	if (host->caps2 & MMC_CAP2_FULL_PWR_CYCLE) {
+		bit = ffs(ocr) - 1;
 		ocr &= 3 << bit;
-
-		mmc_host_clk_hold(host);
-		host->ios.vdd = bit;
-		mmc_set_ios(host);
-		mmc_host_clk_release(host);
+		mmc_power_cycle(host, ocr);
 	} else {
-		pr_warning("%s: host doesn't support card's voltages\n",
-				mmc_hostname(host));
-		ocr = 0;
+		bit = fls(ocr) - 1;
+		ocr &= 3 << bit;
+		if (bit != host->ios.vdd)
+			dev_warn(mmc_dev(host), "exceeding card's volts\n");
 	}
 
 	return ocr;
@@ -1571,14 +1570,6 @@ void mmc_power_off(struct mmc_host *host)
 	host->ios.clock = 0;
 	host->ios.vdd = 0;
 
-
-	/*
-	 * Reset ocr mask to be the highest possible voltage supported for
-	 * this card. This value will be used at next power up.
-	 */
-	if (host->card)
-		host->card->ocr = 1 << (fls(host->ocr_avail) - 1);
-
 	if (!mmc_host_is_spi(host)) {
 		host->ios.bus_mode = MMC_BUSMODE_OPENDRAIN;
 		host->ios.chip_select = MMC_CS_DONTCARE;
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index eb7161c11587..18ce81a85c9b 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1535,7 +1535,6 @@ static int mmc_resume(struct mmc_host *host)
 
 	mmc_claim_host(host);
 	mmc_power_up(host, host->card->ocr);
-	mmc_select_voltage(host, host->card->ocr);
 	err = mmc_init_card(host, host->card->ocr, host->card);
 	mmc_release_host(host);
 
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 398065c57edf..53db60a76dae 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -1103,7 +1103,6 @@ static int mmc_sd_resume(struct mmc_host *host)
 
 	mmc_claim_host(host);
 	mmc_power_up(host, host->card->ocr);
-	mmc_select_voltage(host, host->card->ocr);
 	err = mmc_sd_init_card(host, host->card->ocr, host->card);
 	mmc_release_host(host);
 
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index e0a135a635f5..b7c19e894dd3 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -987,7 +987,6 @@ static int mmc_sdio_resume(struct mmc_host *host)
 	/* Restore power if needed */
 	if (!mmc_card_keep_power(host)) {
 		mmc_power_up(host, host->card->ocr);
-		mmc_select_voltage(host, host->card->ocr);
 		/*
 		 * Tell runtime PM core we just powered up the card,
 		 * since it still believes the card is powered off.
@@ -1045,7 +1044,6 @@ static int mmc_sdio_resume(struct mmc_host *host)
 static int mmc_sdio_power_restore(struct mmc_host *host)
 {
 	int ret;
-	u32 ocr, rocr;
 
 	BUG_ON(!host);
 	BUG_ON(!host->card);
@@ -1067,28 +1065,17 @@ static int mmc_sdio_power_restore(struct mmc_host *host)
 	 * for OLPC SD8686 (which expects a [CMD5,5,3,7] init sequence), and
 	 * harmless in other situations.
 	 *
-	 * With these steps taken, mmc_select_voltage() is also required to
-	 * restore the correct voltage setting of the card.
 	 */
 
 	sdio_reset(host);
 	mmc_go_idle(host);
 	mmc_send_if_cond(host, host->ocr_avail);
 
-	ret = mmc_send_io_op_cond(host, 0, &ocr);
+	ret = mmc_send_io_op_cond(host, 0, NULL);
 	if (ret)
 		goto out;
 
-	if (host->ocr_avail_sdio)
-		host->ocr_avail = host->ocr_avail_sdio;
-
-	rocr = mmc_select_voltage(host, ocr & ~0x7F);
-	if (!rocr) {
-		ret = -EINVAL;
-		goto out;
-	}
-
-	ret = mmc_sdio_init_card(host, rocr, host->card,
+	ret = mmc_sdio_init_card(host, host->card->ocr, host->card,
 				mmc_card_keep_power(host));
 	if (!ret && host->sdio_irqs)
 		mmc_signal_sdio_irq(host);
-- 
cgit 


From 726d6f2374410d980341bfeb49399614e689e702 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Mon, 16 Sep 2013 12:06:15 +0200
Subject: mmc: core: Collect common code for card ocr validation

Since mmc_select_voltage now only gets called from the attach sequence,
it makes sense to move the out of spec validations of the card ocr into
this function.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/core/core.c | 10 ++++++++++
 drivers/mmc/core/mmc.c  | 11 -----------
 drivers/mmc/core/sd.c   | 19 -------------------
 drivers/mmc/core/sdio.c | 10 ----------
 4 files changed, 10 insertions(+), 40 deletions(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 63672aba0e98..bcb507771eeb 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -1357,6 +1357,16 @@ u32 mmc_select_voltage(struct mmc_host *host, u32 ocr)
 {
 	int bit;
 
+	/*
+	 * Sanity check the voltages that the card claims to
+	 * support.
+	 */
+	if (ocr & 0x7F) {
+		dev_warn(mmc_dev(host),
+		"card claims to support voltages below defined range\n");
+		ocr &= ~0x7F;
+	}
+
 	ocr &= host->ocr_avail;
 	if (!ocr) {
 		dev_warn(mmc_dev(host), "no support for card's volts\n");
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 18ce81a85c9b..0d060227cfc1 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1666,17 +1666,6 @@ int mmc_attach_mmc(struct mmc_host *host)
 			goto err;
 	}
 
-	/*
-	 * Sanity check the voltages that the card claims to
-	 * support.
-	 */
-	if (ocr & 0x7F) {
-		pr_warning("%s: card claims to support voltages "
-		       "below the defined range. These will be ignored.\n",
-		       mmc_hostname(host));
-		ocr &= ~0x7F;
-	}
-
 	rocr = mmc_select_voltage(host, ocr);
 
 	/*
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 53db60a76dae..6ef84d0ca178 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -1231,25 +1231,6 @@ int mmc_attach_sd(struct mmc_host *host)
 			goto err;
 	}
 
-	/*
-	 * Sanity check the voltages that the card claims to
-	 * support.
-	 */
-	if (ocr & 0x7F) {
-		pr_warning("%s: card claims to support voltages "
-		       "below the defined range. These will be ignored.\n",
-		       mmc_hostname(host));
-		ocr &= ~0x7F;
-	}
-
-	if ((ocr & MMC_VDD_165_195) &&
-	    !(host->ocr_avail_sd & MMC_VDD_165_195)) {
-		pr_warning("%s: SD card claims to support the "
-		       "incompletely defined 'low voltage range'. This "
-		       "will be ignored.\n", mmc_hostname(host));
-		ocr &= ~MMC_VDD_165_195;
-	}
-
 	rocr = mmc_select_voltage(host, ocr);
 
 	/*
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index b7c19e894dd3..4d721c6e2af0 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -1133,16 +1133,6 @@ int mmc_attach_sdio(struct mmc_host *host)
 	if (host->ocr_avail_sdio)
 		host->ocr_avail = host->ocr_avail_sdio;
 
-	/*
-	 * Sanity check the voltages that the card claims to
-	 * support.
-	 */
-	if (ocr & 0x7F) {
-		pr_warning("%s: card claims to support voltages "
-		       "below the defined range. These will be ignored.\n",
-		       mmc_hostname(host));
-		ocr &= ~0x7F;
-	}
 
 	rocr = mmc_select_voltage(host, ocr);
 
-- 
cgit 


From bbd43682eb12dab2ff4addfca04c32043dfde026 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Fri, 20 Sep 2013 11:02:35 +0200
Subject: mmc: core: Signal wakeup event at card insert/removal

We want to give user space provision to fully consume a card
insert/remove event, when the event was caused by a wakeup irq.

By signaling the wakeup event for a time of 5 s for devices configured
as wakeup capable, we likely will be prevent a sleep long enough to let
user space consume the event.

To enable this feature, host drivers must thus configure their devices
as wakeup capable.

This is a reworked implementation of the old wakelocks for the mmc
subsystem, originally authored by Colin Cross and San Mehat for the
Android kernel. Zoran Markovic shall also be given cred for recently
re-trying to upstream this feature.

Cc: San Mehat <san@google.com>
Cc: Colin Cross <ccross@android.com>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Zoran Markovic <zoran.markovic@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Reviewed-by: Zoran Markovic <zoran.markovic@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/core/core.c | 39 +++++++++++++++++++++++++++------------
 1 file changed, 27 insertions(+), 12 deletions(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index bcb507771eeb..49dfafa99cc1 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -23,6 +23,7 @@
 #include <linux/log2.h>
 #include <linux/regulator/consumer.h>
 #include <linux/pm_runtime.h>
+#include <linux/pm_wakeup.h>
 #include <linux/suspend.h>
 #include <linux/fault-inject.h>
 #include <linux/random.h>
@@ -1692,6 +1693,28 @@ void mmc_detach_bus(struct mmc_host *host)
 	mmc_bus_put(host);
 }
 
+static void _mmc_detect_change(struct mmc_host *host, unsigned long delay,
+				bool cd_irq)
+{
+#ifdef CONFIG_MMC_DEBUG
+	unsigned long flags;
+	spin_lock_irqsave(&host->lock, flags);
+	WARN_ON(host->removed);
+	spin_unlock_irqrestore(&host->lock, flags);
+#endif
+
+	/*
+	 * If the device is configured as wakeup, we prevent a new sleep for
+	 * 5 s to give provision for user space to consume the event.
+	 */
+	if (cd_irq && !(host->caps & MMC_CAP_NEEDS_POLL) &&
+		device_can_wakeup(mmc_dev(host)))
+		pm_wakeup_event(mmc_dev(host), 5000);
+
+	host->detect_change = 1;
+	mmc_schedule_delayed_work(&host->detect, delay);
+}
+
 /**
  *	mmc_detect_change - process change of state on a MMC socket
  *	@host: host which changed state.
@@ -1704,16 +1727,8 @@ void mmc_detach_bus(struct mmc_host *host)
  */
 void mmc_detect_change(struct mmc_host *host, unsigned long delay)
 {
-#ifdef CONFIG_MMC_DEBUG
-	unsigned long flags;
-	spin_lock_irqsave(&host->lock, flags);
-	WARN_ON(host->removed);
-	spin_unlock_irqrestore(&host->lock, flags);
-#endif
-	host->detect_change = 1;
-	mmc_schedule_delayed_work(&host->detect, delay);
+	_mmc_detect_change(host, delay, true);
 }
-
 EXPORT_SYMBOL(mmc_detect_change);
 
 void mmc_init_erase(struct mmc_card *card)
@@ -2392,7 +2407,7 @@ int mmc_detect_card_removed(struct mmc_host *host)
 			 * rescan handle the card removal.
 			 */
 			cancel_delayed_work(&host->detect);
-			mmc_detect_change(host, 0);
+			_mmc_detect_change(host, 0, false);
 		}
 	}
 
@@ -2474,7 +2489,7 @@ void mmc_start_host(struct mmc_host *host)
 		mmc_power_off(host);
 	else
 		mmc_power_up(host, host->ocr_avail);
-	mmc_detect_change(host, 0);
+	_mmc_detect_change(host, 0, false);
 }
 
 void mmc_stop_host(struct mmc_host *host)
@@ -2693,7 +2708,7 @@ int mmc_pm_notify(struct notifier_block *notify_block,
 		spin_lock_irqsave(&host->lock, flags);
 		host->rescan_disable = 0;
 		spin_unlock_irqrestore(&host->lock, flags);
-		mmc_detect_change(host, 0);
+		_mmc_detect_change(host, 0, false);
 
 	}
 
-- 
cgit 


From 914af7c2e58f49c3f5940030cfc30c6693069934 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 25 Sep 2013 09:54:16 +0200
Subject: mmc: atmel-mci: Remove redundant suspend and resume callbacks

Suspend and resume of cards are handled by the protocol layer and
consequently the mmc_suspend|resume_host APIs are marked as deprecated.

While moving away from using the deprecated APIs, there are nothing
left to be done for the suspend and resume callbacks, so remove them.

Cc: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/atmel-mci.c | 61 --------------------------------------------
 1 file changed, 61 deletions(-)

diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c
index 92c18779d47e..2cbb4516d353 100644
--- a/drivers/mmc/host/atmel-mci.c
+++ b/drivers/mmc/host/atmel-mci.c
@@ -255,7 +255,6 @@ struct atmel_mci_slot {
 #define ATMCI_CARD_PRESENT	0
 #define ATMCI_CARD_NEED_INIT	1
 #define ATMCI_SHUTDOWN		2
-#define ATMCI_SUSPENDED		3
 
 	int			detect_pin;
 	int			wp_pin;
@@ -2529,70 +2528,10 @@ static int __exit atmci_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM_SLEEP
-static int atmci_suspend(struct device *dev)
-{
-	struct atmel_mci *host = dev_get_drvdata(dev);
-	int i;
-
-	 for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) {
-		struct atmel_mci_slot *slot = host->slot[i];
-		int ret;
-
-		if (!slot)
-			continue;
-		ret = mmc_suspend_host(slot->mmc);
-		if (ret < 0) {
-			while (--i >= 0) {
-				slot = host->slot[i];
-				if (slot
-				&& test_bit(ATMCI_SUSPENDED, &slot->flags)) {
-					mmc_resume_host(host->slot[i]->mmc);
-					clear_bit(ATMCI_SUSPENDED, &slot->flags);
-				}
-			}
-			return ret;
-		} else {
-			set_bit(ATMCI_SUSPENDED, &slot->flags);
-		}
-	}
-
-	return 0;
-}
-
-static int atmci_resume(struct device *dev)
-{
-	struct atmel_mci *host = dev_get_drvdata(dev);
-	int i;
-	int ret = 0;
-
-	for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) {
-		struct atmel_mci_slot *slot = host->slot[i];
-		int err;
-
-		slot = host->slot[i];
-		if (!slot)
-			continue;
-		if (!test_bit(ATMCI_SUSPENDED, &slot->flags))
-			continue;
-		err = mmc_resume_host(slot->mmc);
-		if (err < 0)
-			ret = err;
-		else
-			clear_bit(ATMCI_SUSPENDED, &slot->flags);
-	}
-
-	return ret;
-}
-#endif
-
-static SIMPLE_DEV_PM_OPS(atmci_pm, atmci_suspend, atmci_resume);
-
 static struct platform_driver atmci_driver = {
 	.remove		= __exit_p(atmci_remove),
 	.driver		= {
 		.name		= "atmel_mci",
-		.pm		= &atmci_pm,
 		.of_match_table	= of_match_ptr(atmci_dt_ids),
 	},
 };
-- 
cgit 


From 1e63d48542029799b4399411ec010afc8bd747a4 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 25 Sep 2013 10:55:23 +0200
Subject: mmc: au1xmmc: Move away from using deprecated APIs

Suspend and resume of cards are being handled from the protocol layer
and consequently the mmc_suspend|resume_host APIs are deprecated.

This means we can simplify the suspend|resume callbacks by removing the
use of the deprecated APIs.

Cc: Manuel Lauss <manuel.lauss@googlemail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/au1xmmc.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/mmc/host/au1xmmc.c b/drivers/mmc/host/au1xmmc.c
index df9becdd2e99..f5443a6c4915 100644
--- a/drivers/mmc/host/au1xmmc.c
+++ b/drivers/mmc/host/au1xmmc.c
@@ -1157,11 +1157,6 @@ static int au1xmmc_remove(struct platform_device *pdev)
 static int au1xmmc_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct au1xmmc_host *host = platform_get_drvdata(pdev);
-	int ret;
-
-	ret = mmc_suspend_host(host->mmc);
-	if (ret)
-		return ret;
 
 	au_writel(0, HOST_CONFIG2(host));
 	au_writel(0, HOST_CONFIG(host));
@@ -1178,7 +1173,7 @@ static int au1xmmc_resume(struct platform_device *pdev)
 
 	au1xmmc_reset_controller(host);
 
-	return mmc_resume_host(host->mmc);
+	return 0;
 }
 #else
 #define au1xmmc_suspend NULL
-- 
cgit 


From 15a6af4dc0d667593f3b952e96671f15b0edd9dc Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 25 Sep 2013 11:45:32 +0200
Subject: mmc: bfin_sdh: Move away from using deprecated APIs

Suspend and resume of cards are being handled from the protocol layer
and consequently the mmc_suspend|resume_host APIs are deprecated.

This means we can simplify the suspend|resume callbacks by removing the
use of the deprecated APIs.

Cc: Sonic Zhang <sonic.zhang@analog.com>
Cc: uclinux-dist-devel@blackfin.uclinux.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/bfin_sdh.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/mmc/host/bfin_sdh.c b/drivers/mmc/host/bfin_sdh.c
index e62c5bc7fa31..2b7f37e82ca9 100644
--- a/drivers/mmc/host/bfin_sdh.c
+++ b/drivers/mmc/host/bfin_sdh.c
@@ -639,21 +639,15 @@ static int sdh_remove(struct platform_device *pdev)
 #ifdef CONFIG_PM
 static int sdh_suspend(struct platform_device *dev, pm_message_t state)
 {
-	struct mmc_host *mmc = platform_get_drvdata(dev);
 	struct bfin_sd_host *drv_data = get_sdh_data(dev);
-	int ret = 0;
-
-	if (mmc)
-		ret = mmc_suspend_host(mmc);
 
 	peripheral_free_list(drv_data->pin_req);
 
-	return ret;
+	return 0;
 }
 
 static int sdh_resume(struct platform_device *dev)
 {
-	struct mmc_host *mmc = platform_get_drvdata(dev);
 	struct bfin_sd_host *drv_data = get_sdh_data(dev);
 	int ret = 0;
 
@@ -664,10 +658,6 @@ static int sdh_resume(struct platform_device *dev)
 	}
 
 	sdh_reset();
-
-	if (mmc)
-		ret = mmc_resume_host(mmc);
-
 	return ret;
 }
 #else
-- 
cgit 


From d978a2b631506bd0501ceb185a21d23cd63b8790 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 25 Sep 2013 12:16:19 +0200
Subject: mmc: cb710: Move away from using deprecated APIs
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Suspend and resume of cards are being handled from the protocol layer
and consequently the mmc_suspend|resume_host APIs are deprecated.

This means we can simplify the suspend|resume callbacks by removing the
use of the deprecated APIs.

Cc: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/cb710-mmc.c | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/drivers/mmc/host/cb710-mmc.c b/drivers/mmc/host/cb710-mmc.c
index 9d6e2b844404..1087b4c79cd6 100644
--- a/drivers/mmc/host/cb710-mmc.c
+++ b/drivers/mmc/host/cb710-mmc.c
@@ -667,12 +667,6 @@ static const struct mmc_host_ops cb710_mmc_host = {
 static int cb710_mmc_suspend(struct platform_device *pdev, pm_message_t state)
 {
 	struct cb710_slot *slot = cb710_pdev_to_slot(pdev);
-	struct mmc_host *mmc = cb710_slot_to_mmc(slot);
-	int err;
-
-	err = mmc_suspend_host(mmc);
-	if (err)
-		return err;
 
 	cb710_mmc_enable_irq(slot, 0, ~0);
 	return 0;
@@ -681,11 +675,9 @@ static int cb710_mmc_suspend(struct platform_device *pdev, pm_message_t state)
 static int cb710_mmc_resume(struct platform_device *pdev)
 {
 	struct cb710_slot *slot = cb710_pdev_to_slot(pdev);
-	struct mmc_host *mmc = cb710_slot_to_mmc(slot);
 
 	cb710_mmc_enable_irq(slot, 0, ~0);
-
-	return mmc_resume_host(mmc);
+	return 0;
 }
 
 #endif /* CONFIG_PM */
-- 
cgit 


From 5ffdeea522c8349ac96a11ec8e19486354fda808 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 25 Sep 2013 12:29:19 +0200
Subject: mmc: davinci_mmc: Move away from using deprecated APIs

Suspend and resume of cards are being handled from the protocol layer
and consequently the mmc_suspend|resume_host APIs are deprecated.

This means we can simplify the suspend|resume callbacks by removing the
use of the deprecated APIs.

Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Manjunathappa, Prakash <prakash.pm@ti.com>
Cc: davinci-linux-open-source@linux.davincidsp.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/davinci_mmc.c | 26 +++++---------------------
 1 file changed, 5 insertions(+), 21 deletions(-)

diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c
index e9fa87df909c..d6153740b77f 100644
--- a/drivers/mmc/host/davinci_mmc.c
+++ b/drivers/mmc/host/davinci_mmc.c
@@ -193,7 +193,6 @@ struct mmc_davinci_host {
 #define DAVINCI_MMC_DATADIR_READ	1
 #define DAVINCI_MMC_DATADIR_WRITE	2
 	unsigned char data_dir;
-	unsigned char suspended;
 
 	/* buffer is used during PIO of one scatterlist segment, and
 	 * is updated along with buffer_bytes_left.  bytes_left applies
@@ -1435,38 +1434,23 @@ static int davinci_mmcsd_suspend(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct mmc_davinci_host *host = platform_get_drvdata(pdev);
-	int ret;
 
-	ret = mmc_suspend_host(host->mmc);
-	if (!ret) {
-		writel(0, host->base + DAVINCI_MMCIM);
-		mmc_davinci_reset_ctrl(host, 1);
-		clk_disable(host->clk);
-		host->suspended = 1;
-	} else {
-		host->suspended = 0;
-	}
+	writel(0, host->base + DAVINCI_MMCIM);
+	mmc_davinci_reset_ctrl(host, 1);
+	clk_disable(host->clk);
 
-	return ret;
+	return 0;
 }
 
 static int davinci_mmcsd_resume(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct mmc_davinci_host *host = platform_get_drvdata(pdev);
-	int ret;
-
-	if (!host->suspended)
-		return 0;
 
 	clk_enable(host->clk);
-
 	mmc_davinci_reset_ctrl(host, 0);
-	ret = mmc_resume_host(host->mmc);
-	if (!ret)
-		host->suspended = 0;
 
-	return ret;
+	return 0;
 }
 
 static const struct dev_pm_ops davinci_mmcsd_pm = {
-- 
cgit 


From 1eeaadf3fe23f2f7271c9746d3cb65db56816360 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 25 Sep 2013 13:10:41 +0200
Subject: mmc: dw_mmc: Move away from using deprecated APIs

Suspend and resume of cards are being handled from the protocol layer
and consequently the mmc_suspend|resume_host APIs are deprecated.

This means we can simplify the suspend|resume callbacks by removing the
use of the deprecated APIs.

Cc: Seungwon Jeon <tgih.jun@samsung.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc.c | 21 ---------------------
 1 file changed, 21 deletions(-)

diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index 0a6a51238b7f..4bce0deec362 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -2696,23 +2696,6 @@ EXPORT_SYMBOL(dw_mci_remove);
  */
 int dw_mci_suspend(struct dw_mci *host)
 {
-	int i, ret = 0;
-
-	for (i = 0; i < host->num_slots; i++) {
-		struct dw_mci_slot *slot = host->slot[i];
-		if (!slot)
-			continue;
-		ret = mmc_suspend_host(slot->mmc);
-		if (ret < 0) {
-			while (--i >= 0) {
-				slot = host->slot[i];
-				if (slot)
-					mmc_resume_host(host->slot[i]->mmc);
-			}
-			return ret;
-		}
-	}
-
 	if (host->vmmc)
 		regulator_disable(host->vmmc);
 
@@ -2765,10 +2748,6 @@ int dw_mci_resume(struct dw_mci *host)
 			dw_mci_set_ios(slot->mmc, &slot->mmc->ios);
 			dw_mci_setup_bus(slot, true);
 		}
-
-		ret = mmc_resume_host(host->slot[i]->mmc);
-		if (ret < 0)
-			return ret;
 	}
 	return 0;
 }
-- 
cgit 


From c91c413e471974c69fc8ae1c3e0c86d71469fa05 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 25 Sep 2013 13:19:58 +0200
Subject: mmc: jz4740: Move away from using deprecated APIs

Suspend and resume of cards are being handled from the protocol layer
and consequently the mmc_suspend|resume_host APIs are deprecated.

This means we can simplify the suspend|resume callbacks by removing the
use of the deprecated APIs.

Cc: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/jz4740_mmc.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/mmc/host/jz4740_mmc.c b/drivers/mmc/host/jz4740_mmc.c
index 66516339e3a0..de2139cf3444 100644
--- a/drivers/mmc/host/jz4740_mmc.c
+++ b/drivers/mmc/host/jz4740_mmc.c
@@ -880,8 +880,6 @@ static int jz4740_mmc_suspend(struct device *dev)
 {
 	struct jz4740_mmc_host *host = dev_get_drvdata(dev);
 
-	mmc_suspend_host(host->mmc);
-
 	jz_gpio_bulk_suspend(jz4740_mmc_pins, jz4740_mmc_num_pins(host));
 
 	return 0;
@@ -893,8 +891,6 @@ static int jz4740_mmc_resume(struct device *dev)
 
 	jz_gpio_bulk_resume(jz4740_mmc_pins, jz4740_mmc_num_pins(host));
 
-	mmc_resume_host(host->mmc);
-
 	return 0;
 }
 
-- 
cgit 


From 29685f6c6a6579bd580ca4d2b9dcb74214525dd1 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 25 Sep 2013 13:29:28 +0200
Subject: mmc: msm_sdcc: Move away from using deprecated APIs

Suspend and resume of cards are being handled from the protocol layer
and consequently the mmc_suspend|resume_host APIs are deprecated.

This means we can simplify the suspend|resume callbacks by removing the
use of the deprecated APIs.

Additionally, remove dead code which also used the deprecated APIs.

Cc: David Brown <davidb@codeaurora.org>
Cc: Daniel Walker <dwalker@fifo99.com>
Cc: Bryan Huntsman <bryanh@codeaurora.org>
Cc: linux-arm-msm@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: David Brown <davidb@codeaurora.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/msm_sdcc.c | 27 ++-------------------------
 1 file changed, 2 insertions(+), 25 deletions(-)

diff --git a/drivers/mmc/host/msm_sdcc.c b/drivers/mmc/host/msm_sdcc.c
index b900de4e7e94..9405ecdaf6cf 100644
--- a/drivers/mmc/host/msm_sdcc.c
+++ b/drivers/mmc/host/msm_sdcc.c
@@ -1416,28 +1416,10 @@ ioremap_free:
 }
 
 #ifdef CONFIG_PM
-#ifdef CONFIG_MMC_MSM7X00A_RESUME_IN_WQ
-static void
-do_resume_work(struct work_struct *work)
-{
-	struct msmsdcc_host *host =
-		container_of(work, struct msmsdcc_host, resume_task);
-	struct mmc_host	*mmc = host->mmc;
-
-	if (mmc) {
-		mmc_resume_host(mmc);
-		if (host->stat_irq)
-			enable_irq(host->stat_irq);
-	}
-}
-#endif
-
-
 static int
 msmsdcc_suspend(struct platform_device *dev, pm_message_t state)
 {
 	struct mmc_host *mmc = mmc_get_drvdata(dev);
-	int rc = 0;
 
 	if (mmc) {
 		struct msmsdcc_host *host = mmc_priv(mmc);
@@ -1445,14 +1427,11 @@ msmsdcc_suspend(struct platform_device *dev, pm_message_t state)
 		if (host->stat_irq)
 			disable_irq(host->stat_irq);
 
-		if (mmc->card && mmc->card->type != MMC_TYPE_SDIO)
-			rc = mmc_suspend_host(mmc);
-		if (!rc)
-			msmsdcc_writel(host, 0, MMCIMASK0);
+		msmsdcc_writel(host, 0, MMCIMASK0);
 		if (host->clks_on)
 			msmsdcc_disable_clocks(host, 0);
 	}
-	return rc;
+	return 0;
 }
 
 static int
@@ -1467,8 +1446,6 @@ msmsdcc_resume(struct platform_device *dev)
 
 		msmsdcc_writel(host, host->saved_irq0mask, MMCIMASK0);
 
-		if (mmc->card && mmc->card->type != MMC_TYPE_SDIO)
-			mmc_resume_host(mmc);
 		if (host->stat_irq)
 			enable_irq(host->stat_irq);
 #if BUSCLK_PWRSAVE
-- 
cgit 


From 4d6c5d83395778192a9c14c0f88dabac5d7a9254 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 25 Sep 2013 13:47:24 +0200
Subject: mmc: mvsdio: Remove redundant suspend and resume callbacks

Suspend and resume of cards are handled by the protocol layer and
consequently the mmc_suspend|resume_host APIs are marked as deprecated.

While moving away from using the deprecated APIs, there are nothing
left to be done for the suspend and resume callbacks, so remove them.

Cc: Nicolas Pitre <nico@fluxnic.net>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/mvsdio.c | 29 -----------------------------
 1 file changed, 29 deletions(-)

diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
index a592407d2de6..22ba4d33e95b 100644
--- a/drivers/mmc/host/mvsdio.c
+++ b/drivers/mmc/host/mvsdio.c
@@ -838,33 +838,6 @@ static int __exit mvsd_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-static int mvsd_suspend(struct platform_device *dev, pm_message_t state)
-{
-	struct mmc_host *mmc = platform_get_drvdata(dev);
-	int ret = 0;
-
-	if (mmc)
-		ret = mmc_suspend_host(mmc);
-
-	return ret;
-}
-
-static int mvsd_resume(struct platform_device *dev)
-{
-	struct mmc_host *mmc = platform_get_drvdata(dev);
-	int ret = 0;
-
-	if (mmc)
-		ret = mmc_resume_host(mmc);
-
-	return ret;
-}
-#else
-#define mvsd_suspend	NULL
-#define mvsd_resume	NULL
-#endif
-
 static const struct of_device_id mvsdio_dt_ids[] = {
 	{ .compatible = "marvell,orion-sdio" },
 	{ /* sentinel */ }
@@ -873,8 +846,6 @@ MODULE_DEVICE_TABLE(of, mvsdio_dt_ids);
 
 static struct platform_driver mvsd_driver = {
 	.remove		= __exit_p(mvsd_remove),
-	.suspend	= mvsd_suspend,
-	.resume		= mvsd_resume,
 	.driver		= {
 		.name	= DRIVER_NAME,
 		.of_match_table = mvsdio_dt_ids,
-- 
cgit 


From 990b2993d11489cb6ee19f948d203afb35871071 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 25 Sep 2013 14:07:06 +0200
Subject: mmc: vub300: Move away from using deprecated APIs

Suspend and resume of cards are handled by the protocol layer and
consequently the mmc_suspend|resume_host APIs are marked as deprecated.

This means we can simplify the suspend|resume callbacks by removing the
use of the deprecated APIs.

Cc: Tony Olech <tony.olech@elandigitalsystems.com>
Cc: linux-usb@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/vub300.c | 18 ++----------------
 1 file changed, 2 insertions(+), 16 deletions(-)

diff --git a/drivers/mmc/host/vub300.c b/drivers/mmc/host/vub300.c
index e9028ad05ffb..4262296c12fa 100644
--- a/drivers/mmc/host/vub300.c
+++ b/drivers/mmc/host/vub300.c
@@ -2392,26 +2392,12 @@ static void vub300_disconnect(struct usb_interface *interface)
 #ifdef CONFIG_PM
 static int vub300_suspend(struct usb_interface *intf, pm_message_t message)
 {
-	struct vub300_mmc_host *vub300 = usb_get_intfdata(intf);
-	if (!vub300 || !vub300->mmc) {
-		return 0;
-	} else {
-		struct mmc_host *mmc = vub300->mmc;
-		mmc_suspend_host(mmc);
-		return 0;
-	}
+	return 0;
 }
 
 static int vub300_resume(struct usb_interface *intf)
 {
-	struct vub300_mmc_host *vub300 = usb_get_intfdata(intf);
-	if (!vub300 || !vub300->mmc) {
-		return 0;
-	} else {
-		struct mmc_host *mmc = vub300->mmc;
-		mmc_resume_host(mmc);
-		return 0;
-	}
+	return 0;
 }
 #else
 #define vub300_suspend NULL
-- 
cgit 


From 4ee14ec65810702a95d195757d307c41ecfd1c71 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 25 Sep 2013 14:15:24 +0200
Subject: mmc: sdhci: Move away from using deprecated APIs

Suspend and resume of cards are being handled from the protocol layer
and consequently the mmc_suspend|resume_host APIs are deprecated.

This means we can simplify the suspend|resume callbacks by removing the
use of the deprecated APIs.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci.c | 20 ++------------------
 1 file changed, 2 insertions(+), 18 deletions(-)

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index a21a71056dd0..6785fb1dc5c6 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2556,8 +2556,6 @@ EXPORT_SYMBOL_GPL(sdhci_disable_irq_wakeups);
 
 int sdhci_suspend_host(struct sdhci_host *host)
 {
-	int ret;
-
 	if (host->ops->platform_suspend)
 		host->ops->platform_suspend(host);
 
@@ -2569,19 +2567,6 @@ int sdhci_suspend_host(struct sdhci_host *host)
 		host->flags &= ~SDHCI_NEEDS_RETUNING;
 	}
 
-	ret = mmc_suspend_host(host->mmc);
-	if (ret) {
-		if (host->flags & SDHCI_USING_RETUNING_TIMER) {
-			host->flags |= SDHCI_NEEDS_RETUNING;
-			mod_timer(&host->tuning_timer, jiffies +
-					host->tuning_count * HZ);
-		}
-
-		sdhci_enable_card_detection(host);
-
-		return ret;
-	}
-
 	if (!device_may_wakeup(mmc_dev(host->mmc))) {
 		sdhci_mask_irqs(host, SDHCI_INT_ALL_MASK);
 		free_irq(host->irq, host);
@@ -2589,14 +2574,14 @@ int sdhci_suspend_host(struct sdhci_host *host)
 		sdhci_enable_irq_wakeups(host);
 		enable_irq_wake(host->irq);
 	}
-	return ret;
+	return 0;
 }
 
 EXPORT_SYMBOL_GPL(sdhci_suspend_host);
 
 int sdhci_resume_host(struct sdhci_host *host)
 {
-	int ret;
+	int ret = 0;
 
 	if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) {
 		if (host->ops->enable_dma)
@@ -2625,7 +2610,6 @@ int sdhci_resume_host(struct sdhci_host *host)
 		mmiowb();
 	}
 
-	ret = mmc_resume_host(host->mmc);
 	sdhci_enable_card_detection(host);
 
 	if (host->ops->platform_resume)
-- 
cgit 


From ccbd483027d8b1cb1c85e2477cd9247d43515046 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 25 Sep 2013 14:30:03 +0200
Subject: mmc: tifm_sd: Move away from using deprecated APIs

Suspend and resume of cards are being handled from the protocol layer
and consequently the mmc_suspend|resume_host APIs are deprecated.

This means we can simplify the suspend|resume callbacks by removing the
use of the deprecated APIs.

Cc: Alex Dubov <oakad@yahoo.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/tifm_sd.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/mmc/host/tifm_sd.c b/drivers/mmc/host/tifm_sd.c
index 43d962829f8e..d1760ebcac03 100644
--- a/drivers/mmc/host/tifm_sd.c
+++ b/drivers/mmc/host/tifm_sd.c
@@ -1030,7 +1030,7 @@ static void tifm_sd_remove(struct tifm_dev *sock)
 
 static int tifm_sd_suspend(struct tifm_dev *sock, pm_message_t state)
 {
-	return mmc_suspend_host(tifm_get_drvdata(sock));
+	return 0;
 }
 
 static int tifm_sd_resume(struct tifm_dev *sock)
@@ -1044,8 +1044,6 @@ static int tifm_sd_resume(struct tifm_dev *sock)
 
 	if (rc)
 		host->eject = 1;
-	else
-		rc = mmc_resume_host(mmc);
 
 	return rc;
 }
-- 
cgit 


From 3932afd514af5855741116159627a90fd1ac918e Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 25 Sep 2013 14:47:06 +0200
Subject: mmc: omap: Remove redundant suspend and resume callbacks

Suspend and resume of cards are handled by the protocol layer and
consequently the mmc_suspend|resume_host APIs are marked as deprecated.

While moving away from using the deprecated APIs, there are nothing
left to be done for the suspend and resume callbacks, so remove them.

Cc: Jarkko Lavinen <jarkko.lavinen@nokia.com>
Cc: linux-omap@vger.kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/omap.c       | 53 -------------------------------------------
 drivers/mmc/host/omap_hsmmc.c | 36 +++--------------------------
 2 files changed, 3 insertions(+), 86 deletions(-)

diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index b94f38ec2a83..0b10a9030f4e 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -128,7 +128,6 @@ struct mmc_omap_slot {
 
 struct mmc_omap_host {
 	int			initialized;
-	int			suspended;
 	struct mmc_request *	mrq;
 	struct mmc_command *	cmd;
 	struct mmc_data *	data;
@@ -1513,61 +1512,9 @@ static int mmc_omap_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-static int mmc_omap_suspend(struct platform_device *pdev, pm_message_t mesg)
-{
-	int i, ret = 0;
-	struct mmc_omap_host *host = platform_get_drvdata(pdev);
-
-	if (host == NULL || host->suspended)
-		return 0;
-
-	for (i = 0; i < host->nr_slots; i++) {
-		struct mmc_omap_slot *slot;
-
-		slot = host->slots[i];
-		ret = mmc_suspend_host(slot->mmc);
-		if (ret < 0) {
-			while (--i >= 0) {
-				slot = host->slots[i];
-				mmc_resume_host(slot->mmc);
-			}
-			return ret;
-		}
-	}
-	host->suspended = 1;
-	return 0;
-}
-
-static int mmc_omap_resume(struct platform_device *pdev)
-{
-	int i, ret = 0;
-	struct mmc_omap_host *host = platform_get_drvdata(pdev);
-
-	if (host == NULL || !host->suspended)
-		return 0;
-
-	for (i = 0; i < host->nr_slots; i++) {
-		struct mmc_omap_slot *slot;
-		slot = host->slots[i];
-		ret = mmc_resume_host(slot->mmc);
-		if (ret < 0)
-			return ret;
-
-		host->suspended = 0;
-	}
-	return 0;
-}
-#else
-#define mmc_omap_suspend	NULL
-#define mmc_omap_resume		NULL
-#endif
-
 static struct platform_driver mmc_omap_driver = {
 	.probe		= mmc_omap_probe,
 	.remove		= mmc_omap_remove,
-	.suspend	= mmc_omap_suspend,
-	.resume		= mmc_omap_resume,
 	.driver		= {
 		.name	= DRIVER_NAME,
 		.owner	= THIS_MODULE,
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index 540dead767b9..dbd32ad3b749 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1171,9 +1171,6 @@ static irqreturn_t omap_hsmmc_detect(int irq, void *dev_id)
 	struct omap_mmc_slot_data *slot = &mmc_slot(host);
 	int carddetect;
 
-	if (host->suspended)
-		return IRQ_HANDLED;
-
 	sysfs_notify(&host->mmc->class_dev.kobj, NULL, "cover_switch");
 
 	if (slot->card_detect)
@@ -1632,11 +1629,6 @@ static int omap_hsmmc_regs_show(struct seq_file *s, void *data)
 	seq_printf(s, "mmc%d:\n ctx_loss:\t%d\n\nregs:\n",
 			mmc->index, host->context_loss);
 
-	if (host->suspended) {
-		seq_printf(s, "host suspended, can't read registers\n");
-		return 0;
-	}
-
 	pm_runtime_get_sync(host->dev);
 
 	seq_printf(s, "CON:\t\t0x%08x\n",
@@ -2101,23 +2093,12 @@ static void omap_hsmmc_complete(struct device *dev)
 
 static int omap_hsmmc_suspend(struct device *dev)
 {
-	int ret = 0;
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
 
 	if (!host)
 		return 0;
 
-	if (host && host->suspended)
-		return 0;
-
 	pm_runtime_get_sync(host->dev);
-	host->suspended = 1;
-	ret = mmc_suspend_host(host->mmc);
-
-	if (ret) {
-		host->suspended = 0;
-		goto err;
-	}
 
 	if (!(host->mmc->pm_flags & MMC_PM_KEEP_POWER)) {
 		omap_hsmmc_disable_irq(host);
@@ -2127,23 +2108,19 @@ static int omap_hsmmc_suspend(struct device *dev)
 
 	if (host->dbclk)
 		clk_disable_unprepare(host->dbclk);
-err:
+
 	pm_runtime_put_sync(host->dev);
-	return ret;
+	return 0;
 }
 
 /* Routine to resume the MMC device */
 static int omap_hsmmc_resume(struct device *dev)
 {
-	int ret = 0;
 	struct omap_hsmmc_host *host = dev_get_drvdata(dev);
 
 	if (!host)
 		return 0;
 
-	if (host && !host->suspended)
-		return 0;
-
 	pm_runtime_get_sync(host->dev);
 
 	if (host->dbclk)
@@ -2154,16 +2131,9 @@ static int omap_hsmmc_resume(struct device *dev)
 
 	omap_hsmmc_protect_card(host);
 
-	/* Notify the core to resume the host */
-	ret = mmc_resume_host(host->mmc);
-	if (ret == 0)
-		host->suspended = 0;
-
 	pm_runtime_mark_last_busy(host->dev);
 	pm_runtime_put_autosuspend(host->dev);
-
-	return ret;
-
+	return 0;
 }
 
 #else
-- 
cgit 


From 683590791dedcae4170cb0fd4b05241098d27b54 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 25 Sep 2013 15:21:53 +0200
Subject: mmc: mxs-mmc: Move away from using deprecated APIs

Suspend and resume of cards are being handled from the protocol layer
and consequently the mmc_suspend|resume_host APIs are deprecated.

This means we can simplify the suspend|resume callbacks by removing the
use of the deprecated APIs.

Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/mxs-mmc.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index e1fa3ef735e0..50fc9df791b2 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -724,13 +724,9 @@ static int mxs_mmc_suspend(struct device *dev)
 	struct mmc_host *mmc = dev_get_drvdata(dev);
 	struct mxs_mmc_host *host = mmc_priv(mmc);
 	struct mxs_ssp *ssp = &host->ssp;
-	int ret = 0;
-
-	ret = mmc_suspend_host(mmc);
 
 	clk_disable_unprepare(ssp->clk);
-
-	return ret;
+	return 0;
 }
 
 static int mxs_mmc_resume(struct device *dev)
@@ -738,13 +734,9 @@ static int mxs_mmc_resume(struct device *dev)
 	struct mmc_host *mmc = dev_get_drvdata(dev);
 	struct mxs_mmc_host *host = mmc_priv(mmc);
 	struct mxs_ssp *ssp = &host->ssp;
-	int ret = 0;
 
 	clk_prepare_enable(ssp->clk);
-
-	ret = mmc_resume_host(mmc);
-
-	return ret;
+	return 0;
 }
 
 static const struct dev_pm_ops mxs_mmc_pm_ops = {
-- 
cgit 


From bd190f90b5fb75a8421ccfecd2ee6c82605f7620 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 25 Sep 2013 15:33:01 +0200
Subject: mmc: mxcmmc: Move away from using deprecated APIs

Suspend and resume of cards are being handled from the protocol layer
and consequently the mmc_suspend|resume_host APIs are deprecated.

This means we can simplify the suspend|resume callbacks by removing the
use of the deprecated APIs.

Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/mxcmmc.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/mmc/host/mxcmmc.c b/drivers/mmc/host/mxcmmc.c
index c174c6a0d224..f7199c83f5cf 100644
--- a/drivers/mmc/host/mxcmmc.c
+++ b/drivers/mmc/host/mxcmmc.c
@@ -1250,28 +1250,20 @@ static int mxcmci_suspend(struct device *dev)
 {
 	struct mmc_host *mmc = dev_get_drvdata(dev);
 	struct mxcmci_host *host = mmc_priv(mmc);
-	int ret = 0;
 
-	if (mmc)
-		ret = mmc_suspend_host(mmc);
 	clk_disable_unprepare(host->clk_per);
 	clk_disable_unprepare(host->clk_ipg);
-
-	return ret;
+	return 0;
 }
 
 static int mxcmci_resume(struct device *dev)
 {
 	struct mmc_host *mmc = dev_get_drvdata(dev);
 	struct mxcmci_host *host = mmc_priv(mmc);
-	int ret = 0;
 
 	clk_prepare_enable(host->clk_per);
 	clk_prepare_enable(host->clk_ipg);
-	if (mmc)
-		ret = mmc_resume_host(mmc);
-
-	return ret;
+	return 0;
 }
 
 static const struct dev_pm_ops mxcmci_pm_ops = {
-- 
cgit 


From 7af37663502ff842846dba1afa2f792afeb41805 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 25 Sep 2013 15:43:45 +0200
Subject: mmc: wmt-sdmmc: Move away from using deprecated APIs

Suspend and resume of cards are being handled from the protocol layer
and consequently the mmc_suspend|resume_host APIs are deprecated.

This means we can simplify the suspend|resume callbacks by removing the
use of the deprecated APIs.

Cc: Tony Prisk <linux@prisktech.co.nz>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/wmt-sdmmc.c | 27 ++++++++++-----------------
 1 file changed, 10 insertions(+), 17 deletions(-)

diff --git a/drivers/mmc/host/wmt-sdmmc.c b/drivers/mmc/host/wmt-sdmmc.c
index 57858efb3762..e902ed7846b0 100644
--- a/drivers/mmc/host/wmt-sdmmc.c
+++ b/drivers/mmc/host/wmt-sdmmc.c
@@ -925,28 +925,23 @@ static int wmt_mci_suspend(struct device *dev)
 	struct platform_device *pdev = to_platform_device(dev);
 	struct mmc_host *mmc = platform_get_drvdata(pdev);
 	struct wmt_mci_priv *priv;
-	int ret;
 
 	if (!mmc)
 		return 0;
 
 	priv = mmc_priv(mmc);
-	ret = mmc_suspend_host(mmc);
-
-	if (!ret) {
-		reg_tmp = readb(priv->sdmmc_base + SDMMC_BUSMODE);
-		writeb(reg_tmp | BM_SOFT_RESET, priv->sdmmc_base +
-		       SDMMC_BUSMODE);
+	reg_tmp = readb(priv->sdmmc_base + SDMMC_BUSMODE);
+	writeb(reg_tmp | BM_SOFT_RESET, priv->sdmmc_base +
+	       SDMMC_BUSMODE);
 
-		reg_tmp = readw(priv->sdmmc_base + SDMMC_BLKLEN);
-		writew(reg_tmp & 0x5FFF, priv->sdmmc_base + SDMMC_BLKLEN);
+	reg_tmp = readw(priv->sdmmc_base + SDMMC_BLKLEN);
+	writew(reg_tmp & 0x5FFF, priv->sdmmc_base + SDMMC_BLKLEN);
 
-		writeb(0xFF, priv->sdmmc_base + SDMMC_STS0);
-		writeb(0xFF, priv->sdmmc_base + SDMMC_STS1);
+	writeb(0xFF, priv->sdmmc_base + SDMMC_STS0);
+	writeb(0xFF, priv->sdmmc_base + SDMMC_STS1);
 
-		clk_disable(priv->clk_sdmmc);
-	}
-	return ret;
+	clk_disable(priv->clk_sdmmc);
+	return 0;
 }
 
 static int wmt_mci_resume(struct device *dev)
@@ -955,7 +950,6 @@ static int wmt_mci_resume(struct device *dev)
 	struct platform_device *pdev = to_platform_device(dev);
 	struct mmc_host *mmc = platform_get_drvdata(pdev);
 	struct wmt_mci_priv *priv;
-	int ret = 0;
 
 	if (mmc) {
 		priv = mmc_priv(mmc);
@@ -973,10 +967,9 @@ static int wmt_mci_resume(struct device *dev)
 		writeb(reg_tmp | INT0_DI_INT_EN, priv->sdmmc_base +
 		       SDMMC_INTMASK0);
 
-		ret = mmc_resume_host(mmc);
 	}
 
-	return ret;
+	return 0;
 }
 
 static const struct dev_pm_ops wmt_mci_pm = {
-- 
cgit 


From bfc55a8e86be704903b93122444f05872db20973 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 25 Sep 2013 16:10:11 +0200
Subject: mmc: s3cmci: Remove redundant suspend and resume callbacks

Suspend and resume of cards are handled by the protocol layer and
consequently the mmc_suspend|resume_host APIs are marked as deprecated.

While moving away from using the deprecated APIs, there are nothing
left to be done for the suspend and resume callbacks, so remove them.

Cc: Ben Dooks <ben-linux@fluff.org>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/s3cmci.c | 29 -----------------------------
 1 file changed, 29 deletions(-)

diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index 8d6794cdf899..2fce5ea5eb39 100644
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -1949,39 +1949,10 @@ static struct platform_device_id s3cmci_driver_ids[] = {
 
 MODULE_DEVICE_TABLE(platform, s3cmci_driver_ids);
 
-
-#ifdef CONFIG_PM
-
-static int s3cmci_suspend(struct device *dev)
-{
-	struct mmc_host *mmc = platform_get_drvdata(to_platform_device(dev));
-
-	return mmc_suspend_host(mmc);
-}
-
-static int s3cmci_resume(struct device *dev)
-{
-	struct mmc_host *mmc = platform_get_drvdata(to_platform_device(dev));
-
-	return mmc_resume_host(mmc);
-}
-
-static const struct dev_pm_ops s3cmci_pm = {
-	.suspend	= s3cmci_suspend,
-	.resume		= s3cmci_resume,
-};
-
-#define s3cmci_pm_ops &s3cmci_pm
-#else /* CONFIG_PM */
-#define s3cmci_pm_ops NULL
-#endif /* CONFIG_PM */
-
-
 static struct platform_driver s3cmci_driver = {
 	.driver	= {
 		.name	= "s3c-sdi",
 		.owner	= THIS_MODULE,
-		.pm	= s3cmci_pm_ops,
 	},
 	.id_table	= s3cmci_driver_ids,
 	.probe		= s3cmci_probe,
-- 
cgit 


From 359bfcb42321e97b677539803f883c50205105e8 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 25 Sep 2013 16:17:10 +0200
Subject: mmc: pxamci: Remove redundant suspend and resume callbacks

Suspend and resume of cards are handled by the protocol layer and
consequently the mmc_suspend|resume_host APIs are marked as deprecated.

While moving away from using the deprecated APIs, there are nothing
left to be done for the suspend and resume callbacks, so remove them.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/pxamci.c | 32 --------------------------------
 1 file changed, 32 deletions(-)

diff --git a/drivers/mmc/host/pxamci.c b/drivers/mmc/host/pxamci.c
index 1956a3df7cf3..32fe11323f39 100644
--- a/drivers/mmc/host/pxamci.c
+++ b/drivers/mmc/host/pxamci.c
@@ -880,35 +880,6 @@ static int pxamci_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-static int pxamci_suspend(struct device *dev)
-{
-	struct mmc_host *mmc = dev_get_drvdata(dev);
-	int ret = 0;
-
-	if (mmc)
-		ret = mmc_suspend_host(mmc);
-
-	return ret;
-}
-
-static int pxamci_resume(struct device *dev)
-{
-	struct mmc_host *mmc = dev_get_drvdata(dev);
-	int ret = 0;
-
-	if (mmc)
-		ret = mmc_resume_host(mmc);
-
-	return ret;
-}
-
-static const struct dev_pm_ops pxamci_pm_ops = {
-	.suspend	= pxamci_suspend,
-	.resume		= pxamci_resume,
-};
-#endif
-
 static struct platform_driver pxamci_driver = {
 	.probe		= pxamci_probe,
 	.remove		= pxamci_remove,
@@ -916,9 +887,6 @@ static struct platform_driver pxamci_driver = {
 		.name	= DRIVER_NAME,
 		.owner	= THIS_MODULE,
 		.of_match_table = of_match_ptr(pxa_mmc_dt_ids),
-#ifdef CONFIG_PM
-		.pm	= &pxamci_pm_ops,
-#endif
 	},
 };
 
-- 
cgit 


From 83234ac895b769241771e1c23f889e0615780ffc Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 25 Sep 2013 16:48:25 +0200
Subject: mmc: wbsd: Move away from using deprecated APIs

Suspend and resume of cards are being handled from the protocol layer
and consequently the mmc_suspend|resume_host APIs are deprecated.

This means we can simplify the suspend|resume callbacks by removing the
use of the deprecated APIs.

Cc: Pierre Ossman <pierre@ossman.eu>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/wbsd.c | 33 +++++----------------------------
 1 file changed, 5 insertions(+), 28 deletions(-)

diff --git a/drivers/mmc/host/wbsd.c b/drivers/mmc/host/wbsd.c
index e954b7758876..024c82414996 100644
--- a/drivers/mmc/host/wbsd.c
+++ b/drivers/mmc/host/wbsd.c
@@ -1814,28 +1814,11 @@ static void wbsd_pnp_remove(struct pnp_dev *dev)
 
 #ifdef CONFIG_PM
 
-static int wbsd_suspend(struct wbsd_host *host, pm_message_t state)
-{
-	BUG_ON(host == NULL);
-
-	return mmc_suspend_host(host->mmc);
-}
-
-static int wbsd_resume(struct wbsd_host *host)
-{
-	BUG_ON(host == NULL);
-
-	wbsd_init_device(host);
-
-	return mmc_resume_host(host->mmc);
-}
-
 static int wbsd_platform_suspend(struct platform_device *dev,
 				 pm_message_t state)
 {
 	struct mmc_host *mmc = platform_get_drvdata(dev);
 	struct wbsd_host *host;
-	int ret;
 
 	if (mmc == NULL)
 		return 0;
@@ -1844,12 +1827,7 @@ static int wbsd_platform_suspend(struct platform_device *dev,
 
 	host = mmc_priv(mmc);
 
-	ret = wbsd_suspend(host, state);
-	if (ret)
-		return ret;
-
 	wbsd_chip_poweroff(host);
-
 	return 0;
 }
 
@@ -1872,7 +1850,8 @@ static int wbsd_platform_resume(struct platform_device *dev)
 	 */
 	mdelay(5);
 
-	return wbsd_resume(host);
+	wbsd_init_device(host);
+	return 0;
 }
 
 #ifdef CONFIG_PNP
@@ -1886,10 +1865,7 @@ static int wbsd_pnp_suspend(struct pnp_dev *pnp_dev, pm_message_t state)
 		return 0;
 
 	DBGF("Suspending...\n");
-
-	host = mmc_priv(mmc);
-
-	return wbsd_suspend(host, state);
+	return 0;
 }
 
 static int wbsd_pnp_resume(struct pnp_dev *pnp_dev)
@@ -1922,7 +1898,8 @@ static int wbsd_pnp_resume(struct pnp_dev *pnp_dev)
 	 */
 	mdelay(5);
 
-	return wbsd_resume(host);
+	wbsd_init_device(host);
+	return 0;
 }
 
 #endif /* CONFIG_PNP */
-- 
cgit 


From ff71c4bcb0af2730d047989e485303ae4e1ce794 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Thu, 26 Sep 2013 09:43:24 +0200
Subject: mmc: rtsx: Remove redundant suspend and resume callbacks

Suspend and resume of cards are handled by the protocol layer and
consequently the mmc_suspend|resume_host APIs are marked as deprecated.

While moving away from using the deprecated APIs, there are nothing
left to be done for the suspend and resume callbacks, so remove them.

Cc: Wei WANG <wei_wang@realsil.com.cn>
Cc: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/rtsx_pci_sdmmc.c | 33 ---------------------------------
 1 file changed, 33 deletions(-)

diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c
index e2ab12473f97..c46feda07d56 100644
--- a/drivers/mmc/host/rtsx_pci_sdmmc.c
+++ b/drivers/mmc/host/rtsx_pci_sdmmc.c
@@ -1197,37 +1197,6 @@ static const struct mmc_host_ops realtek_pci_sdmmc_ops = {
 	.execute_tuning = sdmmc_execute_tuning,
 };
 
-#ifdef CONFIG_PM
-static int rtsx_pci_sdmmc_suspend(struct platform_device *pdev,
-		pm_message_t state)
-{
-	struct realtek_pci_sdmmc *host = platform_get_drvdata(pdev);
-	struct mmc_host *mmc = host->mmc;
-	int err;
-
-	dev_dbg(sdmmc_dev(host), "--> %s\n", __func__);
-
-	err = mmc_suspend_host(mmc);
-	if (err)
-		return err;
-
-	return 0;
-}
-
-static int rtsx_pci_sdmmc_resume(struct platform_device *pdev)
-{
-	struct realtek_pci_sdmmc *host = platform_get_drvdata(pdev);
-	struct mmc_host *mmc = host->mmc;
-
-	dev_dbg(sdmmc_dev(host), "--> %s\n", __func__);
-
-	return mmc_resume_host(mmc);
-}
-#else /* CONFIG_PM */
-#define rtsx_pci_sdmmc_suspend NULL
-#define rtsx_pci_sdmmc_resume NULL
-#endif /* CONFIG_PM */
-
 static void init_extra_caps(struct realtek_pci_sdmmc *host)
 {
 	struct mmc_host *mmc = host->mmc;
@@ -1367,8 +1336,6 @@ static struct platform_driver rtsx_pci_sdmmc_driver = {
 	.probe		= rtsx_pci_sdmmc_drv_probe,
 	.remove		= rtsx_pci_sdmmc_drv_remove,
 	.id_table       = rtsx_pci_sdmmc_ids,
-	.suspend	= rtsx_pci_sdmmc_suspend,
-	.resume		= rtsx_pci_sdmmc_resume,
 	.driver		= {
 		.owner	= THIS_MODULE,
 		.name	= DRV_NAME_RTSX_PCI_SDMMC,
-- 
cgit 


From b2822d372560dfffd730b974b73d77b210a71ffa Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Thu, 26 Sep 2013 10:02:56 +0200
Subject: mmc: sdricoh_cs: Move away from using deprecated APIs

Suspend and resume of cards are being handled from the protocol layer
and consequently the mmc_suspend|resume_host APIs are deprecated.

This means we can simplify the suspend|resume callbacks by removing the
use of the deprecated APIs.

Cc: Sascha Sommer <saschasommer@freenet.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Sascha Sommer <saschasommer@freenet.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdricoh_cs.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/mmc/host/sdricoh_cs.c b/drivers/mmc/host/sdricoh_cs.c
index 50adbd155f35..b7e305775314 100644
--- a/drivers/mmc/host/sdricoh_cs.c
+++ b/drivers/mmc/host/sdricoh_cs.c
@@ -516,9 +516,7 @@ static void sdricoh_pcmcia_detach(struct pcmcia_device *link)
 #ifdef CONFIG_PM
 static int sdricoh_pcmcia_suspend(struct pcmcia_device *link)
 {
-	struct mmc_host *mmc = link->priv;
 	dev_dbg(&link->dev, "suspend\n");
-	mmc_suspend_host(mmc);
 	return 0;
 }
 
@@ -527,7 +525,6 @@ static int sdricoh_pcmcia_resume(struct pcmcia_device *link)
 	struct mmc_host *mmc = link->priv;
 	dev_dbg(&link->dev, "resume\n");
 	sdricoh_reset(mmc_priv(mmc));
-	mmc_resume_host(mmc);
 	return 0;
 }
 #else
-- 
cgit 


From cb3ca1aed991cd67ae76aec682e63633a7bead5b Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Thu, 26 Sep 2013 10:19:09 +0200
Subject: mmc: sh_mmcif: Move away from using deprecated APIs

Suspend and resume of cards are being handled from the protocol layer
and consequently the mmc_suspend|resume_host APIs are deprecated.

This means we can simplify the suspend|resume callbacks by removing the
use of the deprecated APIs.

Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sh_mmcif.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index 36629a024aa1..6bffebe6f57a 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -1542,19 +1542,15 @@ static int sh_mmcif_remove(struct platform_device *pdev)
 static int sh_mmcif_suspend(struct device *dev)
 {
 	struct sh_mmcif_host *host = dev_get_drvdata(dev);
-	int ret = mmc_suspend_host(host->mmc);
 
-	if (!ret)
-		sh_mmcif_writel(host->addr, MMCIF_CE_INT_MASK, MASK_ALL);
+	sh_mmcif_writel(host->addr, MMCIF_CE_INT_MASK, MASK_ALL);
 
-	return ret;
+	return 0;
 }
 
 static int sh_mmcif_resume(struct device *dev)
 {
-	struct sh_mmcif_host *host = dev_get_drvdata(dev);
-
-	return mmc_resume_host(host->mmc);
+	return 0;
 }
 #else
 #define sh_mmcif_suspend	NULL
-- 
cgit 


From d62c9577f950b1ce9b53200542c251ba8dfff344 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Thu, 26 Sep 2013 10:36:06 +0200
Subject: mmc: tmio: Move away from using deprecated APIs

Suspend and resume of cards are being handled from the protocol layer
and consequently the mmc_suspend|resume_host APIs are deprecated.

This means we can simplify the suspend|resume callbacks by removing the
use of the deprecated APIs.

Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Ian Molton <ian@mnementh.co.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/tmio_mmc_pio.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/mmc/host/tmio_mmc_pio.c b/drivers/mmc/host/tmio_mmc_pio.c
index b3802256f954..f3b2d8ca1eca 100644
--- a/drivers/mmc/host/tmio_mmc_pio.c
+++ b/drivers/mmc/host/tmio_mmc_pio.c
@@ -1145,12 +1145,9 @@ int tmio_mmc_host_suspend(struct device *dev)
 {
 	struct mmc_host *mmc = dev_get_drvdata(dev);
 	struct tmio_mmc_host *host = mmc_priv(mmc);
-	int ret = mmc_suspend_host(mmc);
 
-	if (!ret)
-		tmio_mmc_disable_mmc_irqs(host, TMIO_MASK_ALL);
-
-	return ret;
+	tmio_mmc_disable_mmc_irqs(host, TMIO_MASK_ALL);
+	return 0;
 }
 EXPORT_SYMBOL(tmio_mmc_host_suspend);
 
@@ -1163,7 +1160,7 @@ int tmio_mmc_host_resume(struct device *dev)
 
 	/* The MMC core will perform the complete set up */
 	host->resuming = true;
-	return mmc_resume_host(mmc);
+	return 0;
 }
 EXPORT_SYMBOL(tmio_mmc_host_resume);
 
-- 
cgit 


From ccad9b973f50144dddd05e9704b0eb4060c316a3 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Thu, 26 Sep 2013 10:47:11 +0200
Subject: mmc: via-sdmmc: Move away from using deprecated APIs

Suspend and resume of cards are being handled from the protocol layer
and consequently the mmc_suspend|resume_host APIs are deprecated.

This means we can simplify the suspend|resume callbacks by removing the
use of the deprecated APIs.

Cc: Bruce Chang <brucechang@via.com.tw>
Cc: Harald Welte <HaraldWelte@viatech.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/via-sdmmc.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/mmc/host/via-sdmmc.c b/drivers/mmc/host/via-sdmmc.c
index 4f84586c6e9e..63fac78b3d46 100644
--- a/drivers/mmc/host/via-sdmmc.c
+++ b/drivers/mmc/host/via-sdmmc.c
@@ -1269,21 +1269,18 @@ static void via_init_sdc_pm(struct via_crdr_mmc_host *host)
 static int via_sd_suspend(struct pci_dev *pcidev, pm_message_t state)
 {
 	struct via_crdr_mmc_host *host;
-	int ret = 0;
 
 	host = pci_get_drvdata(pcidev);
 
 	via_save_pcictrlreg(host);
 	via_save_sdcreg(host);
 
-	ret = mmc_suspend_host(host->mmc);
-
 	pci_save_state(pcidev);
 	pci_enable_wake(pcidev, pci_choose_state(pcidev, state), 0);
 	pci_disable_device(pcidev);
 	pci_set_power_state(pcidev, pci_choose_state(pcidev, state));
 
-	return ret;
+	return 0;
 }
 
 static int via_sd_resume(struct pci_dev *pcidev)
@@ -1316,8 +1313,6 @@ static int via_sd_resume(struct pci_dev *pcidev)
 	via_restore_pcictrlreg(sdhost);
 	via_init_sdc_pm(sdhost);
 
-	ret = mmc_resume_host(sdhost->mmc);
-
 	return ret;
 }
 
-- 
cgit 


From 578aebc7d6eca1de7a641b7ab0e70db73a42bcfa Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Thu, 26 Sep 2013 10:54:30 +0200
Subject: mmc: mmci: Move away from using deprecated APIs

Suspend and resume of cards are being handled from the protocol layer
and consequently the mmc_suspend|resume_host APIs are deprecated.

This means we can simplify the suspend|resume callbacks by removing the
use of the deprecated APIs.

Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/mmci.c | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c
index c3785edc0e92..9e8a482310d8 100644
--- a/drivers/mmc/host/mmci.c
+++ b/drivers/mmc/host/mmci.c
@@ -1725,37 +1725,28 @@ static int mmci_suspend(struct device *dev)
 {
 	struct amba_device *adev = to_amba_device(dev);
 	struct mmc_host *mmc = amba_get_drvdata(adev);
-	int ret = 0;
 
 	if (mmc) {
 		struct mmci_host *host = mmc_priv(mmc);
-
-		ret = mmc_suspend_host(mmc);
-		if (ret == 0) {
-			pm_runtime_get_sync(dev);
-			writel(0, host->base + MMCIMASK0);
-		}
+		pm_runtime_get_sync(dev);
+		writel(0, host->base + MMCIMASK0);
 	}
 
-	return ret;
+	return 0;
 }
 
 static int mmci_resume(struct device *dev)
 {
 	struct amba_device *adev = to_amba_device(dev);
 	struct mmc_host *mmc = amba_get_drvdata(adev);
-	int ret = 0;
 
 	if (mmc) {
 		struct mmci_host *host = mmc_priv(mmc);
-
 		writel(MCI_IRQENABLE, host->base + MMCIMASK0);
 		pm_runtime_put(dev);
-
-		ret = mmc_resume_host(mmc);
 	}
 
-	return ret;
+	return 0;
 }
 #endif
 
-- 
cgit 


From 3c0d22e8180b98eea412b84aa0f0c42c16159679 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Thu, 26 Sep 2013 11:01:18 +0200
Subject: mmc: core: Remove deprecated mmc_suspend|resume_host APIs

The are no more users of the deprecated mmc_suspend|resume_host API,
so let's remove it.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/core/core.c  | 22 ----------------------
 include/linux/mmc/host.h |  3 ---
 2 files changed, 25 deletions(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 49dfafa99cc1..57a2b403bf8e 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -2641,28 +2641,6 @@ EXPORT_SYMBOL(mmc_cache_ctrl);
 
 #ifdef CONFIG_PM
 
-/**
- *	mmc_suspend_host - suspend a host
- *	@host: mmc host
- */
-int mmc_suspend_host(struct mmc_host *host)
-{
-	/* This function is deprecated */
-	return 0;
-}
-EXPORT_SYMBOL(mmc_suspend_host);
-
-/**
- *	mmc_resume_host - resume a previously suspended host
- *	@host: mmc host
- */
-int mmc_resume_host(struct mmc_host *host)
-{
-	/* This function is deprecated */
-	return 0;
-}
-EXPORT_SYMBOL(mmc_resume_host);
-
 /* Do the card removal on suspend if card is assumed removeable
  * Do that in pm notifier while userspace isn't yet frozen, so we will be able
    to sync the card.
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index 1c91bbbb01c3..f18669e15d4d 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -381,9 +381,6 @@ static inline void *mmc_priv(struct mmc_host *host)
 #define mmc_classdev(x)	(&(x)->class_dev)
 #define mmc_hostname(x)	(dev_name(&(x)->class_dev))
 
-int mmc_suspend_host(struct mmc_host *);
-int mmc_resume_host(struct mmc_host *);
-
 int mmc_power_save_host(struct mmc_host *host);
 int mmc_power_restore_host(struct mmc_host *host);
 
-- 
cgit 


From 0c04c6274fbc56c40649472e0076e949ecbc75ce Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Mon, 30 Sep 2013 11:50:31 +0200
Subject: MIPS: db1235: Don't use MMC_CLKGATE

As a first step in removing code for MMC_CLKGATE, MIPS db1235 defconfig
which is the only current user, shall move away from this option.

The mmc host drivers au1xmmc and jz4740_mmc, which are used on MIPS
don't support clock gating through MMC_CLKGATE, thus removing the
config option will have no effect on power save - clock gating wise.

Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 arch/mips/configs/db1235_defconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/mips/configs/db1235_defconfig b/arch/mips/configs/db1235_defconfig
index e2b4ad55462f..28e49f226dc0 100644
--- a/arch/mips/configs/db1235_defconfig
+++ b/arch/mips/configs/db1235_defconfig
@@ -351,7 +351,6 @@ CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_OHCI_HCD_PLATFORM=y
 CONFIG_USB_STORAGE=y
 CONFIG_MMC=y
-CONFIG_MMC_CLKGATE=y
 CONFIG_MMC_AU1X=y
 CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
-- 
cgit 


From 9ec775f7efd6d17084b4f361804d2030d50fca0e Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 2 Oct 2013 17:37:09 +0200
Subject: mmc: Don't force card to active state when entering suspend/shutdown

By adding a card state that records if it is suspended or resumed, we
can accept asyncronus suspend/resume requests for the mmc and sd
bus_ops.

MMC_CAP_AGGRESSIVE_PM, will at request inactivity through the runtime
bus_ops callbacks, execute a suspend of the the card. In the state were
this has been done, we can receive a suspend request for the mmc bus,
which for sd and mmc forced the card to active state by a
pm_runtime_get_sync. In other words, the card was resumed and then
immediately suspended again, completely unnecessary.

Since the suspend/resume bus_ops callbacks for sd and mmc are now
capable of handling asynchronous requests, we no longer need to force
the card to active state before executing suspend. Evidently preventing
the above sequence for MMC_CAP_AGGRESSIVE_PM.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/card/block.c |  2 --
 drivers/mmc/core/mmc.c   | 45 ++++++++++++++++++++++++++++++++++-----------
 drivers/mmc/core/sd.c    | 21 +++++++++++++++++----
 include/linux/mmc/card.h |  4 ++++
 4 files changed, 55 insertions(+), 17 deletions(-)

diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c
index 1a3163f1407e..29d5d988a51c 100644
--- a/drivers/mmc/card/block.c
+++ b/drivers/mmc/card/block.c
@@ -2448,7 +2448,6 @@ static int _mmc_blk_suspend(struct mmc_card *card)
 	struct mmc_blk_data *md = mmc_get_drvdata(card);
 
 	if (md) {
-		pm_runtime_get_sync(&card->dev);
 		mmc_queue_suspend(&md->queue);
 		list_for_each_entry(part_md, &md->part, part) {
 			mmc_queue_suspend(&part_md->queue);
@@ -2483,7 +2482,6 @@ static int mmc_blk_resume(struct mmc_card *card)
 		list_for_each_entry(part_md, &md->part, part) {
 			mmc_queue_resume(&part_md->queue);
 		}
-		pm_runtime_put(&card->dev);
 	}
 	return 0;
 }
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 0d060227cfc1..84d8694cf369 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1478,6 +1478,9 @@ static int _mmc_suspend(struct mmc_host *host, bool is_suspend)
 
 	mmc_claim_host(host);
 
+	if (mmc_card_suspended(host->card))
+		goto out;
+
 	if (mmc_card_doing_bkops(host->card)) {
 		err = mmc_stop_bkops(host->card);
 		if (err)
@@ -1497,8 +1500,10 @@ static int _mmc_suspend(struct mmc_host *host, bool is_suspend)
 		err = mmc_deselect_cards(host);
 	host->card->state &= ~(MMC_STATE_HIGHSPEED | MMC_STATE_HIGHSPEED_200);
 
-	if (!err)
+	if (!err) {
 		mmc_power_off(host);
+		mmc_card_set_suspended(host->card);
+	}
 out:
 	mmc_release_host(host);
 	return err;
@@ -1512,14 +1517,6 @@ static int mmc_suspend(struct mmc_host *host)
 	return _mmc_suspend(host, true);
 }
 
-/*
- * Shutdown callback
- */
-static int mmc_shutdown(struct mmc_host *host)
-{
-	return _mmc_suspend(host, false);
-}
-
 /*
  * Resume callback from host.
  *
@@ -1528,19 +1525,45 @@ static int mmc_shutdown(struct mmc_host *host)
  */
 static int mmc_resume(struct mmc_host *host)
 {
-	int err;
+	int err = 0;
 
 	BUG_ON(!host);
 	BUG_ON(!host->card);
 
 	mmc_claim_host(host);
+
+	if (!mmc_card_suspended(host->card))
+		goto out;
+
 	mmc_power_up(host, host->card->ocr);
 	err = mmc_init_card(host, host->card->ocr, host->card);
-	mmc_release_host(host);
+	mmc_card_clr_suspended(host->card);
 
+out:
+	mmc_release_host(host);
 	return err;
 }
 
+/*
+ * Shutdown callback
+ */
+static int mmc_shutdown(struct mmc_host *host)
+{
+	int err = 0;
+
+	/*
+	 * In a specific case for poweroff notify, we need to resume the card
+	 * before we can shutdown it properly.
+	 */
+	if (mmc_can_poweroff_notify(host->card) &&
+		!(host->caps2 & MMC_CAP2_FULL_PWR_CYCLE))
+		err = mmc_resume(host);
+
+	if (!err)
+		err = _mmc_suspend(host, false);
+
+	return err;
+}
 
 /*
  * Callback for runtime_suspend.
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 6ef84d0ca178..685796560f8b 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -1078,13 +1078,20 @@ static int mmc_sd_suspend(struct mmc_host *host)
 	BUG_ON(!host->card);
 
 	mmc_claim_host(host);
+
+	if (mmc_card_suspended(host->card))
+		goto out;
+
 	if (!mmc_host_is_spi(host))
 		err = mmc_deselect_cards(host);
 	host->card->state &= ~MMC_STATE_HIGHSPEED;
-	if (!err)
+	if (!err) {
 		mmc_power_off(host);
-	mmc_release_host(host);
+		mmc_card_set_suspended(host->card);
+	}
 
+out:
+	mmc_release_host(host);
 	return err;
 }
 
@@ -1096,16 +1103,22 @@ static int mmc_sd_suspend(struct mmc_host *host)
  */
 static int mmc_sd_resume(struct mmc_host *host)
 {
-	int err;
+	int err = 0;
 
 	BUG_ON(!host);
 	BUG_ON(!host->card);
 
 	mmc_claim_host(host);
+
+	if (!mmc_card_suspended(host->card))
+		goto out;
+
 	mmc_power_up(host, host->card->ocr);
 	err = mmc_sd_init_card(host, host->card->ocr, host->card);
-	mmc_release_host(host);
+	mmc_card_clr_suspended(host->card);
 
+out:
+	mmc_release_host(host);
 	return err;
 }
 
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index 33d9a74f92e6..176fdf824b14 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -258,6 +258,7 @@ struct mmc_card {
 #define MMC_CARD_REMOVED	(1<<7)		/* card has been removed */
 #define MMC_STATE_HIGHSPEED_200	(1<<8)		/* card is in HS200 mode */
 #define MMC_STATE_DOING_BKOPS	(1<<10)		/* card is doing BKOPS */
+#define MMC_STATE_SUSPENDED	(1<<11)		/* card is suspended */
 	unsigned int		quirks; 	/* card quirks */
 #define MMC_QUIRK_LENIENT_FN0	(1<<0)		/* allow SDIO FN0 writes outside of the VS CCCR range */
 #define MMC_QUIRK_BLKSZ_FOR_BYTE_MODE (1<<1)	/* use func->cur_blksize */
@@ -424,6 +425,7 @@ static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data)
 #define mmc_card_ext_capacity(c) ((c)->state & MMC_CARD_SDXC)
 #define mmc_card_removed(c)	((c) && ((c)->state & MMC_CARD_REMOVED))
 #define mmc_card_doing_bkops(c)	((c)->state & MMC_STATE_DOING_BKOPS)
+#define mmc_card_suspended(c)	((c)->state & MMC_STATE_SUSPENDED)
 
 #define mmc_card_set_present(c)	((c)->state |= MMC_STATE_PRESENT)
 #define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
@@ -436,6 +438,8 @@ static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data)
 #define mmc_card_set_removed(c) ((c)->state |= MMC_CARD_REMOVED)
 #define mmc_card_set_doing_bkops(c)	((c)->state |= MMC_STATE_DOING_BKOPS)
 #define mmc_card_clr_doing_bkops(c)	((c)->state &= ~MMC_STATE_DOING_BKOPS)
+#define mmc_card_set_suspended(c) ((c)->state |= MMC_STATE_SUSPENDED)
+#define mmc_card_clr_suspended(c) ((c)->state &= ~MMC_STATE_SUSPENDED)
 
 /*
  * Quirk add/remove for MMC products.
-- 
cgit 


From 0cc81a8c6442e43618ff245948bfaa14fdf7938b Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Thu, 3 Oct 2013 11:24:44 +0200
Subject: mmc: core: Remove redundant mmc_power_up|off at runtime callbacks

Commit "mmc: core: Push common suspend|resume code into each bus_ops"
moved the responsibility for doing mmc_power_up|off into each
suspend/resume bus_ops. When using MMC_CAP_AGGRESSIVE_PM, through the
runtime callbacks, calls to mmc_power_up|off became redundant.

When removing them, we are also able to remove the calls to
mmc_claim|release_host, thus simplifing code a bit more.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/core/mmc.c | 13 +------------
 drivers/mmc/core/sd.c  | 13 +------------
 2 files changed, 2 insertions(+), 24 deletions(-)

diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 84d8694cf369..b22eff80a95e 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1575,18 +1575,11 @@ static int mmc_runtime_suspend(struct mmc_host *host)
 	if (!(host->caps & MMC_CAP_AGGRESSIVE_PM))
 		return 0;
 
-	mmc_claim_host(host);
-
 	err = mmc_suspend(host);
-	if (err) {
+	if (err)
 		pr_err("%s: error %d doing aggessive suspend\n",
 			mmc_hostname(host), err);
-		goto out;
-	}
-	mmc_power_off(host);
 
-out:
-	mmc_release_host(host);
 	return err;
 }
 
@@ -1600,15 +1593,11 @@ static int mmc_runtime_resume(struct mmc_host *host)
 	if (!(host->caps & MMC_CAP_AGGRESSIVE_PM))
 		return 0;
 
-	mmc_claim_host(host);
-
-	mmc_power_up(host, host->card->ocr);
 	err = mmc_resume(host);
 	if (err)
 		pr_err("%s: error %d doing aggessive resume\n",
 			mmc_hostname(host), err);
 
-	mmc_release_host(host);
 	return 0;
 }
 
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 685796560f8b..7b2854009e39 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -1132,18 +1132,11 @@ static int mmc_sd_runtime_suspend(struct mmc_host *host)
 	if (!(host->caps & MMC_CAP_AGGRESSIVE_PM))
 		return 0;
 
-	mmc_claim_host(host);
-
 	err = mmc_sd_suspend(host);
-	if (err) {
+	if (err)
 		pr_err("%s: error %d doing aggessive suspend\n",
 			mmc_hostname(host), err);
-		goto out;
-	}
-	mmc_power_off(host);
 
-out:
-	mmc_release_host(host);
 	return err;
 }
 
@@ -1157,15 +1150,11 @@ static int mmc_sd_runtime_resume(struct mmc_host *host)
 	if (!(host->caps & MMC_CAP_AGGRESSIVE_PM))
 		return 0;
 
-	mmc_claim_host(host);
-
-	mmc_power_up(host, host->card->ocr);
 	err = mmc_sd_resume(host);
 	if (err)
 		pr_err("%s: error %d doing aggessive resume\n",
 			mmc_hostname(host), err);
 
-	mmc_release_host(host);
 	return 0;
 }
 
-- 
cgit 


From 0cb403a227774f60f6f52137ca3618805498c4e6 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Thu, 10 Oct 2013 14:20:05 +0200
Subject: mmc: core: Improve runtime PM support during suspend/resume for
 sd/mmc

The card device is considered as in-active after it has been suspended.
To prevent any further runtime PM requests in suspend state, we then
disable runtime PM.

After the card device has been resumed, we shall consider it as active,
like we also do after a probe sequence. When resumed, we can safely
enable runtime PM again.

This will make sure the PM core can request the card device to go to
in-active state after a resume has been completed. Previously we had to
wait for new pm_runtime_get->pm_runtime_put cycle to be executed.

Additionally, once a resume has been carried out, update the last busy
mark. At the moment this will have no effect but if the PM core will
respect autosuspend enabled devices, when it directly triggers a
runtime_suspend from a runtime_idle, it will mean the card device will
be scheduled for a delayed runtime_suspend instead of done immediately.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/core/mmc.c | 38 ++++++++++++++++++++++++++++++--------
 drivers/mmc/core/sd.c  | 45 ++++++++++++++++++++++++++++++++++++---------
 2 files changed, 66 insertions(+), 17 deletions(-)

diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index b22eff80a95e..7f5dc26865de 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -13,6 +13,7 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/stat.h>
+#include <linux/pm_runtime.h>
 
 #include <linux/mmc/host.h>
 #include <linux/mmc/card.h>
@@ -1510,20 +1511,26 @@ out:
 }
 
 /*
- * Suspend callback from host.
+ * Suspend callback
  */
 static int mmc_suspend(struct mmc_host *host)
 {
-	return _mmc_suspend(host, true);
+	int err;
+
+	err = _mmc_suspend(host, true);
+	if (!err) {
+		pm_runtime_disable(&host->card->dev);
+		pm_runtime_set_suspended(&host->card->dev);
+	}
+
+	return err;
 }
 
 /*
- * Resume callback from host.
- *
  * This function tries to determine if the same card is still present
  * and, if so, restore all state to it.
  */
-static int mmc_resume(struct mmc_host *host)
+static int _mmc_resume(struct mmc_host *host)
 {
 	int err = 0;
 
@@ -1557,7 +1564,7 @@ static int mmc_shutdown(struct mmc_host *host)
 	 */
 	if (mmc_can_poweroff_notify(host->card) &&
 		!(host->caps2 & MMC_CAP2_FULL_PWR_CYCLE))
-		err = mmc_resume(host);
+		err = _mmc_resume(host);
 
 	if (!err)
 		err = _mmc_suspend(host, false);
@@ -1565,6 +1572,21 @@ static int mmc_shutdown(struct mmc_host *host)
 	return err;
 }
 
+/*
+ * Callback for resume.
+ */
+static int mmc_resume(struct mmc_host *host)
+{
+	int err;
+
+	err = _mmc_resume(host);
+	pm_runtime_set_active(&host->card->dev);
+	pm_runtime_mark_last_busy(&host->card->dev);
+	pm_runtime_enable(&host->card->dev);
+
+	return err;
+}
+
 /*
  * Callback for runtime_suspend.
  */
@@ -1575,7 +1597,7 @@ static int mmc_runtime_suspend(struct mmc_host *host)
 	if (!(host->caps & MMC_CAP_AGGRESSIVE_PM))
 		return 0;
 
-	err = mmc_suspend(host);
+	err = _mmc_suspend(host, true);
 	if (err)
 		pr_err("%s: error %d doing aggessive suspend\n",
 			mmc_hostname(host), err);
@@ -1593,7 +1615,7 @@ static int mmc_runtime_resume(struct mmc_host *host)
 	if (!(host->caps & MMC_CAP_AGGRESSIVE_PM))
 		return 0;
 
-	err = mmc_resume(host);
+	err = _mmc_resume(host);
 	if (err)
 		pr_err("%s: error %d doing aggessive resume\n",
 			mmc_hostname(host), err);
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 7b2854009e39..447fa8e9f322 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -13,6 +13,7 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/stat.h>
+#include <linux/pm_runtime.h>
 
 #include <linux/mmc/host.h>
 #include <linux/mmc/card.h>
@@ -1067,10 +1068,7 @@ static void mmc_sd_detect(struct mmc_host *host)
 	}
 }
 
-/*
- * Suspend callback from host.
- */
-static int mmc_sd_suspend(struct mmc_host *host)
+static int _mmc_sd_suspend(struct mmc_host *host)
 {
 	int err = 0;
 
@@ -1096,12 +1094,26 @@ out:
 }
 
 /*
- * Resume callback from host.
- *
+ * Callback for suspend
+ */
+static int mmc_sd_suspend(struct mmc_host *host)
+{
+	int err;
+
+	err = _mmc_sd_suspend(host);
+	if (!err) {
+		pm_runtime_disable(&host->card->dev);
+		pm_runtime_set_suspended(&host->card->dev);
+	}
+
+	return err;
+}
+
+/*
  * This function tries to determine if the same card is still present
  * and, if so, restore all state to it.
  */
-static int mmc_sd_resume(struct mmc_host *host)
+static int _mmc_sd_resume(struct mmc_host *host)
 {
 	int err = 0;
 
@@ -1122,6 +1134,21 @@ out:
 	return err;
 }
 
+/*
+ * Callback for resume
+ */
+static int mmc_sd_resume(struct mmc_host *host)
+{
+	int err;
+
+	err = _mmc_sd_resume(host);
+	pm_runtime_set_active(&host->card->dev);
+	pm_runtime_mark_last_busy(&host->card->dev);
+	pm_runtime_enable(&host->card->dev);
+
+	return err;
+}
+
 /*
  * Callback for runtime_suspend.
  */
@@ -1132,7 +1159,7 @@ static int mmc_sd_runtime_suspend(struct mmc_host *host)
 	if (!(host->caps & MMC_CAP_AGGRESSIVE_PM))
 		return 0;
 
-	err = mmc_sd_suspend(host);
+	err = _mmc_sd_suspend(host);
 	if (err)
 		pr_err("%s: error %d doing aggessive suspend\n",
 			mmc_hostname(host), err);
@@ -1150,7 +1177,7 @@ static int mmc_sd_runtime_resume(struct mmc_host *host)
 	if (!(host->caps & MMC_CAP_AGGRESSIVE_PM))
 		return 0;
 
-	err = mmc_sd_resume(host);
+	err = _mmc_sd_resume(host);
 	if (err)
 		pr_err("%s: error %d doing aggessive resume\n",
 			mmc_hostname(host), err);
-- 
cgit 


From 4d22378221bd0ed69c2e99408d31c108d72aeb80 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Thu, 10 Oct 2013 17:22:23 +0200
Subject: mmc: core: Add MMC_CAP_RUNTIME_RESUME to resume at runtime_resume

In some environments it is to prefer to postpone the resume of the card
device until runtime_resume is being carried out, since it will mean a
signficant decrease of the total system resume time.

The reason of the decreased resume time is simply because of the actual
re-initalization of the card, which typically takes hundreds of
milliseconds, is performed outside the resume sequence and wont thus
affect it.

For removable card, the detect work tries to re-detect the card to make
sure it is still present, as a part of that sequence the card will also
be runtime_resumed and thus also fully resumed.

For a non-removable card, typically a mmc blk request will trigger a
runtime_resume and thus fully resume the card. This also means the
first request will likely suffer from an inital latency since the
re-initialization of the card needs to be performed.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/core/mmc.c   | 12 +++++++-----
 drivers/mmc/core/sd.c    | 12 +++++++-----
 include/linux/mmc/host.h |  1 +
 3 files changed, 15 insertions(+), 10 deletions(-)

diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 7f5dc26865de..f631f5a9bf79 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1577,11 +1577,13 @@ static int mmc_shutdown(struct mmc_host *host)
  */
 static int mmc_resume(struct mmc_host *host)
 {
-	int err;
+	int err = 0;
 
-	err = _mmc_resume(host);
-	pm_runtime_set_active(&host->card->dev);
-	pm_runtime_mark_last_busy(&host->card->dev);
+	if (!(host->caps & MMC_CAP_RUNTIME_RESUME)) {
+		err = _mmc_resume(host);
+		pm_runtime_set_active(&host->card->dev);
+		pm_runtime_mark_last_busy(&host->card->dev);
+	}
 	pm_runtime_enable(&host->card->dev);
 
 	return err;
@@ -1612,7 +1614,7 @@ static int mmc_runtime_resume(struct mmc_host *host)
 {
 	int err;
 
-	if (!(host->caps & MMC_CAP_AGGRESSIVE_PM))
+	if (!(host->caps & (MMC_CAP_AGGRESSIVE_PM | MMC_CAP_RUNTIME_RESUME)))
 		return 0;
 
 	err = _mmc_resume(host);
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 447fa8e9f322..6f42050b7ccc 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -1139,11 +1139,13 @@ out:
  */
 static int mmc_sd_resume(struct mmc_host *host)
 {
-	int err;
+	int err = 0;
 
-	err = _mmc_sd_resume(host);
-	pm_runtime_set_active(&host->card->dev);
-	pm_runtime_mark_last_busy(&host->card->dev);
+	if (!(host->caps & MMC_CAP_RUNTIME_RESUME)) {
+		err = _mmc_sd_resume(host);
+		pm_runtime_set_active(&host->card->dev);
+		pm_runtime_mark_last_busy(&host->card->dev);
+	}
 	pm_runtime_enable(&host->card->dev);
 
 	return err;
@@ -1174,7 +1176,7 @@ static int mmc_sd_runtime_resume(struct mmc_host *host)
 {
 	int err;
 
-	if (!(host->caps & MMC_CAP_AGGRESSIVE_PM))
+	if (!(host->caps & (MMC_CAP_AGGRESSIVE_PM | MMC_CAP_RUNTIME_RESUME)))
 		return 0;
 
 	err = _mmc_sd_resume(host);
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h
index f18669e15d4d..99f5709ac343 100644
--- a/include/linux/mmc/host.h
+++ b/include/linux/mmc/host.h
@@ -254,6 +254,7 @@ struct mmc_host {
 #define MMC_CAP_UHS_SDR50	(1 << 17)	/* Host supports UHS SDR50 mode */
 #define MMC_CAP_UHS_SDR104	(1 << 18)	/* Host supports UHS SDR104 mode */
 #define MMC_CAP_UHS_DDR50	(1 << 19)	/* Host supports UHS DDR50 mode */
+#define MMC_CAP_RUNTIME_RESUME	(1 << 20)	/* Resume at runtime_resume. */
 #define MMC_CAP_DRIVER_TYPE_A	(1 << 23)	/* Host supports Driver Type A */
 #define MMC_CAP_DRIVER_TYPE_C	(1 << 24)	/* Host supports Driver Type C */
 #define MMC_CAP_DRIVER_TYPE_D	(1 << 25)	/* Host supports Driver Type D */
-- 
cgit 


From 4cca9593266d70b741ae63618ed1657f69a9f389 Mon Sep 17 00:00:00 2001
From: Hiroshi Doyu <hdoyu@nvidia.com>
Date: Wed, 30 Oct 2013 17:17:48 -0600
Subject: ARM: tegra: fix Tegra114 IOMMU register address

The IOMMU node's reg property contains completely bogus values! Somehow,
this had no practical effect, despite the fact the IOMMU driver appears
to be writing to those registers. I suppose that since no HW modules is
actually at that address, the writes simply had no effect.

Note that I'm not CCing stable here, even though the problem exists as
far back as v3.9, simply because this patch doesn't fix any observed
issue, and I don't want to run the risk of suddenly writing to some
registers and causing a regression.

Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
[swarren, wrote commit description]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/boot/dts/tegra114.dtsi | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/tegra114.dtsi b/arch/arm/boot/dts/tegra114.dtsi
index 2905145d8e59..8d42787c8ff1 100644
--- a/arch/arm/boot/dts/tegra114.dtsi
+++ b/arch/arm/boot/dts/tegra114.dtsi
@@ -318,9 +318,9 @@
 
 	iommu {
 		compatible = "nvidia,tegra114-smmu", "nvidia,tegra30-smmu";
-		reg = <0x7000f010 0x02c
-		       0x7000f1f0 0x010
-		       0x7000f228 0x074>;
+		reg = <0x70019010 0x02c
+		       0x700191f0 0x010
+		       0x70019228 0x074>;
 		nvidia,#asids = <4>;
 		dma-window = <0 0x40000000>;
 		nvidia,swgroups = <0x18659fe>;
-- 
cgit 


From 005ff5fb077ebf93882bd643932f932a9b402529 Mon Sep 17 00:00:00 2001
From: Christian Daudt <bcm@fixthebug.org>
Date: Wed, 30 Oct 2013 16:55:33 -0700
Subject: ARM: bcm281xx: Add ARCH_BCM_MOBILE to bcm config

This patch (re)adds ARCH_BCM_MOBILE option to bcm_defconfig which was
accidentally removed by commit 2d58b26550ad ('ARM: bcm_defconfig: Run
"make savedefconfig"')

Signed-off-by: Christian Daudt <bcm@fixthebug.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/configs/bcm_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/bcm_defconfig b/arch/arm/configs/bcm_defconfig
index 3a138af6e2fb..287ac1d7aac7 100644
--- a/arch/arm/configs/bcm_defconfig
+++ b/arch/arm/configs/bcm_defconfig
@@ -25,6 +25,7 @@ CONFIG_MODULE_UNLOAD=y
 # CONFIG_BLK_DEV_BSG is not set
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_ARCH_BCM=y
+CONFIG_ARCH_BCM_MOBILE=y
 CONFIG_ARM_THUMBEE=y
 CONFIG_PREEMPT=y
 CONFIG_AEABI=y
-- 
cgit 


From 65f36f4149ce4490b2174ef45e1dbe494f4b8268 Mon Sep 17 00:00:00 2001
From: Cedric Le Goater <clg@fr.ibm.com>
Date: Wed, 30 Oct 2013 14:47:06 +0100
Subject: powerpc/nvram: Scan partitions only once

nvram_scan_partitions() is called twice when initializing the "lnx,oops-log"
partition and the "ibm,rtas-log" partition. This fills the partition list
with duplicate entries. This patch moves the partition scan in the init
routine pseries_nvram_init_log_partitions() which is called only once.

Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/pseries/nvram.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/platforms/pseries/nvram.c b/arch/powerpc/platforms/pseries/nvram.c
index d276cd3edd8f..2498d4d801e8 100644
--- a/arch/powerpc/platforms/pseries/nvram.c
+++ b/arch/powerpc/platforms/pseries/nvram.c
@@ -429,9 +429,6 @@ static int __init pseries_nvram_init_os_partition(struct nvram_os_partition
 	loff_t p;
 	int size;
 
-	/* Scan nvram for partitions */
-	nvram_scan_partitions();
-
 	/* Look for ours */
 	p = nvram_find_partition(part->name, NVRAM_SIG_OS, &size);
 
@@ -795,6 +792,9 @@ static int __init pseries_nvram_init_log_partitions(void)
 {
 	int rc;
 
+	/* Scan nvram for partitions */
+	nvram_scan_partitions();
+
 	rc = pseries_nvram_init_os_partition(&rtas_log_partition);
 	nvram_init_oops_partition(rc == 0);
 	return 0;
-- 
cgit 


From 563c5d8af5d56739bc31f9f4b1c8a0994ed5742c Mon Sep 17 00:00:00 2001
From: Cedric Le Goater <clg@fr.ibm.com>
Date: Wed, 30 Oct 2013 14:47:07 +0100
Subject: powerpc/nvram: Fix endian issue when reading the NVRAM size

Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/chrp/nvram.c    | 4 ++--
 arch/powerpc/platforms/pseries/nvram.c | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/powerpc/platforms/chrp/nvram.c b/arch/powerpc/platforms/chrp/nvram.c
index d3ceff04ffc7..9ef8cc3378d0 100644
--- a/arch/powerpc/platforms/chrp/nvram.c
+++ b/arch/powerpc/platforms/chrp/nvram.c
@@ -66,7 +66,7 @@ static void chrp_nvram_write(int addr, unsigned char val)
 void __init chrp_nvram_init(void)
 {
 	struct device_node *nvram;
-	const unsigned int *nbytes_p;
+	const __be32 *nbytes_p;
 	unsigned int proplen;
 
 	nvram = of_find_node_by_type(NULL, "nvram");
@@ -79,7 +79,7 @@ void __init chrp_nvram_init(void)
 		return;
 	}
 
-	nvram_size = *nbytes_p;
+	nvram_size = be32_to_cpup(nbytes_p);
 
 	printk(KERN_INFO "CHRP nvram contains %u bytes\n", nvram_size);
 	of_node_put(nvram);
diff --git a/arch/powerpc/platforms/pseries/nvram.c b/arch/powerpc/platforms/pseries/nvram.c
index 2498d4d801e8..057fc894be51 100644
--- a/arch/powerpc/platforms/pseries/nvram.c
+++ b/arch/powerpc/platforms/pseries/nvram.c
@@ -804,7 +804,7 @@ machine_arch_initcall(pseries, pseries_nvram_init_log_partitions);
 int __init pSeries_nvram_init(void)
 {
 	struct device_node *nvram;
-	const unsigned int *nbytes_p;
+	const __be32 *nbytes_p;
 	unsigned int proplen;
 
 	nvram = of_find_node_by_type(NULL, "nvram");
@@ -817,7 +817,7 @@ int __init pSeries_nvram_init(void)
 		return -EIO;
 	}
 
-	nvram_size = *nbytes_p;
+	nvram_size = be32_to_cpup(nbytes_p);
 
 	nvram_fetch = rtas_token("nvram-fetch");
 	nvram_store = rtas_token("nvram-store");
-- 
cgit 


From c81095a465b2c1cd819fb14ee3cd07bc1b377af1 Mon Sep 17 00:00:00 2001
From: Cedric Le Goater <clg@fr.ibm.com>
Date: Wed, 30 Oct 2013 14:47:08 +0100
Subject: powerpc/nvram: Fix endian issue when using the partition length

When reading partitions, the length has to be translated from
big endian to the endian order of the host. Similarly, when writing
partitions, the length needs to be in big endian order.

The userspace tool 'nvram' needs a similar fix as it is reading
and writing partitions through /dev/nram :

    http://sourceforge.net/p/powerpc-utils/mailman/message/31571277/

Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/nvram_64.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
index 8213ee1eb05a..fd82c289ab1c 100644
--- a/arch/powerpc/kernel/nvram_64.c
+++ b/arch/powerpc/kernel/nvram_64.c
@@ -223,9 +223,13 @@ static int __init nvram_write_header(struct nvram_partition * part)
 {
 	loff_t tmp_index;
 	int rc;
-	
+	struct nvram_header phead;
+
+	memcpy(&phead, &part->header, NVRAM_HEADER_LEN);
+	phead.length = cpu_to_be16(phead.length);
+
 	tmp_index = part->index;
-	rc = ppc_md.nvram_write((char *)&part->header, NVRAM_HEADER_LEN, &tmp_index); 
+	rc = ppc_md.nvram_write((char *)&phead, NVRAM_HEADER_LEN, &tmp_index);
 
 	return rc;
 }
@@ -505,6 +509,8 @@ int __init nvram_scan_partitions(void)
 
 		memcpy(&phead, header, NVRAM_HEADER_LEN);
 
+		phead.length = be16_to_cpu(phead.length);
+
 		err = 0;
 		c_sum = nvram_checksum(&phead);
 		if (c_sum != phead.checksum) {
-- 
cgit 


From de00b30d054857990dc573648e4767ec512009c7 Mon Sep 17 00:00:00 2001
From: Christian Kujau <lists@nerdbynature.de>
Date: Tue, 29 Oct 2013 21:25:43 -0700
Subject: powerpc/pmu: Fix ADB_PMU_LED_IDE dependencies

for quite some time the following is printed (twice) after doing
"make oldconfig":

[...]
scripts/kconfig/conf --oldconfig Kconfig
warning: (ADB_PMU_LED_IDE) selects LEDS_TRIGGER_IDE_DISK which has unmet direct dependencies (NEW_LEDS && IDE_GD_ATA && LEDS_TRIGGERS)
warning: (ADB_PMU_LED_IDE) selects LEDS_TRIGGER_IDE_DISK which has unmet direct dependencies (NEW_LEDS && IDE_GD_ATA && LEDS_TRIGGERS)

The following patch causes ADB_PMU_LED to depend on IDE_GD_ATA, so that
the options above are only available when IDE_GD_ATA is actually selected
and thus eliminates the warning.

Signed-off-by: Christian Kujau <lists@nerdbynature.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 drivers/macintosh/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/macintosh/Kconfig b/drivers/macintosh/Kconfig
index 696238b9f0f7..d26a312f117a 100644
--- a/drivers/macintosh/Kconfig
+++ b/drivers/macintosh/Kconfig
@@ -103,6 +103,7 @@ config ADB_PMU_LED_IDE
 	bool "Use front LED as IDE LED by default"
 	depends on ADB_PMU_LED
 	depends on LEDS_CLASS
+	depends on IDE_GD_ATA
 	select LEDS_TRIGGERS
 	select LEDS_TRIGGER_IDE_DISK
 	help
-- 
cgit 


From 711b5138d54fcfd5e312cea895d6e706a46eff19 Mon Sep 17 00:00:00 2001
From: Dan Streetman <ddstreet@ieee.org>
Date: Tue, 29 Oct 2013 22:25:14 -0400
Subject: powerpc: Only save/restore SDR1 if in hypervisor mode

Currently, when not in hypervisor mode the kernel
Oopses during suspend or hibernation when accessing
the SDR1 register, because it is only available
in hypervisor mode.  Access to it needs to be
protected in BEGIN/END_FW_FTR_SECTION.

Signed-off-by: Dan Streetman <ddstreet@ieee.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reported-by: Jimmy Pan <jipan@redhat.com>
Tested-by: Jimmy Pan <jipan@redhat.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/swsusp_asm64.S | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/powerpc/kernel/swsusp_asm64.S b/arch/powerpc/kernel/swsusp_asm64.S
index 22045984835f..988f38dced0f 100644
--- a/arch/powerpc/kernel/swsusp_asm64.S
+++ b/arch/powerpc/kernel/swsusp_asm64.S
@@ -114,7 +114,9 @@ _GLOBAL(swsusp_arch_suspend)
 	SAVE_SPECIAL(MSR)
 	SAVE_SPECIAL(XER)
 #ifdef CONFIG_PPC_BOOK3S_64
+BEGIN_FW_FTR_SECTION
 	SAVE_SPECIAL(SDR1)
+END_FW_FTR_SECTION_IFCLR(FW_FEATURE_LPAR)
 #else
 	SAVE_SPR(TCR)
 
@@ -231,7 +233,9 @@ nothing_to_copy:
 	/* can't use RESTORE_SPECIAL(MSR) */
 	ld	r0, SL_MSR(r11)
 	mtmsrd	r0, 0
+BEGIN_FW_FTR_SECTION
 	RESTORE_SPECIAL(SDR1)
+END_FW_FTR_SECTION_IFCLR(FW_FEATURE_LPAR)
 #else
 	/* Restore SPRG1, be used to save paca */
 	ld	r0, SL_SPRG1(r11)
-- 
cgit 


From 08746a65c2961b5765a66350823ff75ace63bfd1 Mon Sep 17 00:00:00 2001
From: Krzysztof Mazur <krzysiek@podlesie.net>
Date: Thu, 31 Oct 2013 13:45:39 +1030
Subject: init: fix in-place parameter modification regression

Before commit 026cee0086fe1df4cf74691cf273062cc769617d
("params: <level>_initcall-like kernel parameters") the __setup
parameter parsing code could modify parameter in the
static_command_line buffer and such modifications were kept. After
that commit such modifications are destroyed during per-initcall level
parameter parsing because the same static_command_line buffer is used
and only parameters for appropriate initcall level are parsed.

That change broke at least parsing "ubd" parameter in the ubd driver
when the COW file is used.

Now the separate buffer is used for per-initcall parameter parsing.

Signed-off-by: Krzysztof Mazur <krzysiek@podlesie.net>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 init/main.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/init/main.c b/init/main.c
index af310afbef28..1300a0dd3207 100644
--- a/init/main.c
+++ b/init/main.c
@@ -131,6 +131,8 @@ char __initdata boot_command_line[COMMAND_LINE_SIZE];
 char *saved_command_line;
 /* Command line for parameter parsing */
 static char *static_command_line;
+/* Command line for per-initcall parameter parsing */
+static char *initcall_command_line;
 
 static char *execute_command;
 static char *ramdisk_execute_command;
@@ -347,6 +349,7 @@ static inline void smp_prepare_cpus(unsigned int maxcpus) { }
 static void __init setup_command_line(char *command_line)
 {
 	saved_command_line = alloc_bootmem(strlen (boot_command_line)+1);
+	initcall_command_line = alloc_bootmem(strlen (boot_command_line)+1);
 	static_command_line = alloc_bootmem(strlen (command_line)+1);
 	strcpy (saved_command_line, boot_command_line);
 	strcpy (static_command_line, command_line);
@@ -744,9 +747,9 @@ static void __init do_initcall_level(int level)
 	extern const struct kernel_param __start___param[], __stop___param[];
 	initcall_t *fn;
 
-	strcpy(static_command_line, saved_command_line);
+	strcpy(initcall_command_line, saved_command_line);
 	parse_args(initcall_level_names[level],
-		   static_command_line, __start___param,
+		   initcall_command_line, __start___param,
 		   __stop___param - __start___param,
 		   level, level,
 		   &repair_env_string);
-- 
cgit 


From 9c662cad2fb66ff3a44b1d4f545bf496bf67ab10 Mon Sep 17 00:00:00 2001
From: Philippe Bergheaud <felix@linux.vnet.ibm.com>
Date: Tue, 24 Sep 2013 14:13:35 +0200
Subject: powerpc/bpf: BPF JIT compiler for 64-bit Little Endian

This enables the Berkeley Packet Filter JIT compiler
for the PowerPC running in 64bit Little Endian.

Signed-off-by: Philippe Bergheaud <felix@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/ppc-opcode.h |  1 +
 arch/powerpc/net/bpf_jit.h            | 10 ++++++++++
 arch/powerpc/net/bpf_jit_64.S         |  9 ++++++++-
 arch/powerpc/net/bpf_jit_comp.c       | 17 ++---------------
 4 files changed, 21 insertions(+), 16 deletions(-)

diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h
index 442edee4b6aa..99f87906de17 100644
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -203,6 +203,7 @@
 /* Misc instructions for BPF compiler */
 #define PPC_INST_LD			0xe8000000
 #define PPC_INST_LHZ			0xa0000000
+#define PPC_INST_LHBRX			0x7c00062c
 #define PPC_INST_LWZ			0x80000000
 #define PPC_INST_STD			0xf8000000
 #define PPC_INST_STDU			0xf8000001
diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h
index 8a5dfaf5c6b7..0baf2b826e25 100644
--- a/arch/powerpc/net/bpf_jit.h
+++ b/arch/powerpc/net/bpf_jit.h
@@ -92,6 +92,8 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh);
 				     ___PPC_RA(base) | IMM_L(i))
 #define PPC_LHZ(r, base, i)	EMIT(PPC_INST_LHZ | ___PPC_RT(r) |	      \
 				     ___PPC_RA(base) | IMM_L(i))
+#define PPC_LHBRX(r, base, b)	EMIT(PPC_INST_LHBRX | ___PPC_RT(r) |	      \
+				     ___PPC_RA(base) | ___PPC_RB(b))
 /* Convenience helpers for the above with 'far' offsets: */
 #define PPC_LD_OFFS(r, base, i) do { if ((i) < 32768) PPC_LD(r, base, i);     \
 		else {	PPC_ADDIS(r, base, IMM_HA(i));			      \
@@ -186,6 +188,14 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh);
 				PPC_ORI(d, d, (uintptr_t)(i) & 0xffff);	      \
 		} } while (0);
 
+#define PPC_LHBRX_OFFS(r, base, i) \
+		do { PPC_LI32(r, i); PPC_LHBRX(r, r, base); } while(0)
+#ifdef __LITTLE_ENDIAN__
+#define PPC_NTOHS_OFFS(r, base, i)	PPC_LHBRX_OFFS(r, base, i)
+#else
+#define PPC_NTOHS_OFFS(r, base, i)	PPC_LHZ_OFFS(r, base, i)
+#endif
+
 static inline bool is_nearbranch(int offset)
 {
 	return (offset < 32768) && (offset >= -32768);
diff --git a/arch/powerpc/net/bpf_jit_64.S b/arch/powerpc/net/bpf_jit_64.S
index 7d3a3b5619a2..e76eba74d9da 100644
--- a/arch/powerpc/net/bpf_jit_64.S
+++ b/arch/powerpc/net/bpf_jit_64.S
@@ -43,8 +43,11 @@ sk_load_word_positive_offset:
 	cmpd	r_scratch1, r_addr
 	blt	bpf_slow_path_word
 	/* Nope, just hitting the header.  cr0 here is eq or gt! */
+#ifdef __LITTLE_ENDIAN__
+	lwbrx	r_A, r_D, r_addr
+#else
 	lwzx	r_A, r_D, r_addr
-	/* When big endian we don't need to byteswap. */
+#endif
 	blr	/* Return success, cr0 != LT */
 
 	.globl	sk_load_half
@@ -56,7 +59,11 @@ sk_load_half_positive_offset:
 	subi	r_scratch1, r_HL, 2
 	cmpd	r_scratch1, r_addr
 	blt	bpf_slow_path_half
+#ifdef __LITTLE_ENDIAN__
+	lhbrx	r_A, r_D, r_addr
+#else
 	lhzx	r_A, r_D, r_addr
+#endif
 	blr
 
 	.globl	sk_load_byte
diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c
index bf56e33f8257..81cd6c79babe 100644
--- a/arch/powerpc/net/bpf_jit_comp.c
+++ b/arch/powerpc/net/bpf_jit_comp.c
@@ -17,14 +17,8 @@
 
 #include "bpf_jit.h"
 
-#ifndef __BIG_ENDIAN
-/* There are endianness assumptions herein. */
-#error "Little-endian PPC not supported in BPF compiler"
-#endif
-
 int bpf_jit_enable __read_mostly;
 
-
 static inline void bpf_flush_icache(void *start, void *end)
 {
 	smp_wmb();
@@ -346,18 +340,11 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image,
 			break;
 
 			/*** Ancillary info loads ***/
-
-			/* None of the BPF_S_ANC* codes appear to be passed by
-			 * sk_chk_filter().  The interpreter and the x86 BPF
-			 * compiler implement them so we do too -- they may be
-			 * planted in future.
-			 */
 		case BPF_S_ANC_PROTOCOL: /* A = ntohs(skb->protocol); */
 			BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff,
 						  protocol) != 2);
-			PPC_LHZ_OFFS(r_A, r_skb, offsetof(struct sk_buff,
-							  protocol));
-			/* ntohs is a NOP with BE loads. */
+			PPC_NTOHS_OFFS(r_A, r_skb, offsetof(struct sk_buff,
+							    protocol));
 			break;
 		case BPF_S_ANC_IFINDEX:
 			PPC_LD_OFFS(r_scratch1, r_skb, offsetof(struct sk_buff,
-- 
cgit 


From d0cebfa650a084f041131207d81f9b311babd5ef Mon Sep 17 00:00:00 2001
From: Philippe Bergheaud <felix@linux.vnet.ibm.com>
Date: Thu, 26 Sep 2013 08:30:09 +0200
Subject: powerpc: word-at-a-time optimization for 64-bit Little Endian

This is an optimization for the PowerPC in 64-bit
little-endian. Bit counting is used in find_zero(), instead
of the multiply and shift.

It is modelled after Alan Modra's PowerPC LE strlen patch
http://sourceware.org/ml/libc-alpha/2013-08/msg00097.html.

Signed-off-by: Philippe Bergheaud <felix@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/word-at-a-time.h | 57 +++++++++++++++++--------------
 1 file changed, 32 insertions(+), 25 deletions(-)

diff --git a/arch/powerpc/include/asm/word-at-a-time.h b/arch/powerpc/include/asm/word-at-a-time.h
index 213a5f2b0717..9a5c928bb3c6 100644
--- a/arch/powerpc/include/asm/word-at-a-time.h
+++ b/arch/powerpc/include/asm/word-at-a-time.h
@@ -42,13 +42,6 @@ static inline bool has_zero(unsigned long val, unsigned long *data, const struct
 
 #else
 
-/*
- * This is largely generic for little-endian machines, but the
- * optimal byte mask counting is probably going to be something
- * that is architecture-specific. If you have a reliably fast
- * bit count instruction, that might be better than the multiply
- * and shift, for example.
- */
 struct word_at_a_time {
 	const unsigned long one_bits, high_bits;
 };
@@ -57,19 +50,32 @@ struct word_at_a_time {
 
 #ifdef CONFIG_64BIT
 
-/*
- * Jan Achrenius on G+: microoptimized version of
- * the simpler "(mask & ONEBYTES) * ONEBYTES >> 56"
- * that works for the bytemasks without having to
- * mask them first.
- */
-static inline long count_masked_bytes(unsigned long mask)
+/* Alan Modra's little-endian strlen tail for 64-bit */
+#define create_zero_mask(mask) (mask)
+
+static inline unsigned long find_zero(unsigned long mask)
 {
-	return mask*0x0001020304050608ul >> 56;
+	unsigned long leading_zero_bits;
+	long trailing_zero_bit_mask;
+
+	asm ("addi %1,%2,-1\n\t"
+	     "andc %1,%1,%2\n\t"
+	     "popcntd %0,%1"
+	     : "=r" (leading_zero_bits), "=&r" (trailing_zero_bit_mask)
+	     : "r" (mask));
+	return leading_zero_bits >> 3;
 }
 
 #else	/* 32-bit case */
 
+/*
+ * This is largely generic for little-endian machines, but the
+ * optimal byte mask counting is probably going to be something
+ * that is architecture-specific. If you have a reliably fast
+ * bit count instruction, that might be better than the multiply
+ * and shift, for example.
+ */
+
 /* Carl Chatfield / Jan Achrenius G+ version for 32-bit */
 static inline long count_masked_bytes(long mask)
 {
@@ -79,6 +85,17 @@ static inline long count_masked_bytes(long mask)
 	return a & mask;
 }
 
+static inline unsigned long create_zero_mask(unsigned long bits)
+{
+	bits = (bits - 1) & ~bits;
+	return bits >> 7;
+}
+
+static inline unsigned long find_zero(unsigned long mask)
+{
+	return count_masked_bytes(mask);
+}
+
 #endif
 
 /* Return nonzero if it has a zero */
@@ -94,19 +111,9 @@ static inline unsigned long prep_zero_mask(unsigned long a, unsigned long bits,
 	return bits;
 }
 
-static inline unsigned long create_zero_mask(unsigned long bits)
-{
-	bits = (bits - 1) & ~bits;
-	return bits >> 7;
-}
-
 /* The mask we created is directly usable as a bytemask */
 #define zero_bytemask(mask) (mask)
 
-static inline unsigned long find_zero(unsigned long mask)
-{
-	return count_masked_bytes(mask);
-}
 #endif
 
 #endif /* _ASM_WORD_AT_A_TIME_H */
-- 
cgit 


From 7ba5fef7d9e1880635cbb2fd698e8a24dc366d0f Mon Sep 17 00:00:00 2001
From: Michael Neuling <mikey@neuling.org>
Date: Wed, 2 Oct 2013 17:15:14 +1000
Subject: powerpc/tm: Remove interrupt disable in __switch_to()

We currently turn IRQs off in __switch_to(0 but this is unnecessary as it's
already disabled in the caller.

This removes the IRQ disable but adds a check to make sure it is really off
in case this changes in future.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/process.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 4d42c4de8b9b..75c2d1009985 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -597,12 +597,13 @@ struct task_struct *__switch_to(struct task_struct *prev,
 	struct task_struct *new)
 {
 	struct thread_struct *new_thread, *old_thread;
-	unsigned long flags;
 	struct task_struct *last;
 #ifdef CONFIG_PPC_BOOK3S_64
 	struct ppc64_tlb_batch *batch;
 #endif
 
+	WARN_ON(!irqs_disabled());
+
 	/* Back up the TAR across context switches.
 	 * Note that the TAR is not available for use in the kernel.  (To
 	 * provide this, the TAR should be backed up/restored on exception
@@ -722,8 +723,6 @@ struct task_struct *__switch_to(struct task_struct *prev,
 	}
 #endif /* CONFIG_PPC_BOOK3S_64 */
 
-	local_irq_save(flags);
-
 	/*
 	 * We can't take a PMU exception inside _switch() since there is a
 	 * window where the kernel stack SLB and the kernel stack are out
@@ -743,8 +742,6 @@ struct task_struct *__switch_to(struct task_struct *prev,
 	}
 #endif /* CONFIG_PPC_BOOK3S_64 */
 
-	local_irq_restore(flags);
-
 	return last;
 }
 
-- 
cgit 


From afaf53985431bb295e4b723b08a55d0540cf8070 Mon Sep 17 00:00:00 2001
From: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Date: Wed, 18 Sep 2013 11:53:04 +0100
Subject: powerpc: Remove big endianness assumption in of_find_next_cache_node

Currently big endianness of the device tree data is assumed in
of_find_next_cache_node for 'handle' when calling of_find_node_by_phandle.

In preparation to move this function to common code, this patch fixes
the endianness using 'be32_to_cpup'

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/prom.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index b7634ce41dbc..09be2759c314 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -778,7 +778,7 @@ struct device_node *of_find_next_cache_node(struct device_node *np)
 		handle = of_get_property(np, "next-level-cache", NULL);
 
 	if (handle)
-		return of_find_node_by_phandle(*handle);
+		return of_find_node_by_phandle(be32_to_cpup(handle));
 
 	/* OF on pmac has nodes instead of properties named "l2-cache"
 	 * beneath CPU nodes.
-- 
cgit 


From a3e31b4588443f37d82195096c6b30dff1c152c2 Mon Sep 17 00:00:00 2001
From: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Date: Wed, 18 Sep 2013 11:53:05 +0100
Subject: of: Move definition of of_find_next_cache_node into common code.

Since the definition of_find_next_cache_node is architecture independent,
the existing definition in powerpc can be moved to driver/of/base.c

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/prom.h |  3 ---
 arch/powerpc/kernel/prom.c      | 31 -------------------------------
 drivers/of/base.c               | 31 +++++++++++++++++++++++++++++++
 include/linux/of.h              |  2 ++
 4 files changed, 33 insertions(+), 34 deletions(-)

diff --git a/arch/powerpc/include/asm/prom.h b/arch/powerpc/include/asm/prom.h
index 7d0c7f3a7171..bf09e5a065b8 100644
--- a/arch/powerpc/include/asm/prom.h
+++ b/arch/powerpc/include/asm/prom.h
@@ -44,9 +44,6 @@ void of_parse_dma_window(struct device_node *dn, const __be32 *dma_window,
 
 extern void kdump_move_device_tree(void);
 
-/* cache lookup */
-struct device_node *of_find_next_cache_node(struct device_node *np);
-
 #ifdef CONFIG_NUMA
 extern int of_node_to_nid(struct device_node *device);
 #else
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 09be2759c314..4432fd86a6d2 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -760,37 +760,6 @@ void __init early_init_devtree(void *params)
  *
  *******/
 
-/**
- *	of_find_next_cache_node - Find a node's subsidiary cache
- *	@np:	node of type "cpu" or "cache"
- *
- *	Returns a node pointer with refcount incremented, use
- *	of_node_put() on it when done.  Caller should hold a reference
- *	to np.
- */
-struct device_node *of_find_next_cache_node(struct device_node *np)
-{
-	struct device_node *child;
-	const phandle *handle;
-
-	handle = of_get_property(np, "l2-cache", NULL);
-	if (!handle)
-		handle = of_get_property(np, "next-level-cache", NULL);
-
-	if (handle)
-		return of_find_node_by_phandle(be32_to_cpup(handle));
-
-	/* OF on pmac has nodes instead of properties named "l2-cache"
-	 * beneath CPU nodes.
-	 */
-	if (!strcmp(np->type, "cpu"))
-		for_each_child_of_node(np, child)
-			if (!strcmp(child->type, "cache"))
-				return child;
-
-	return NULL;
-}
-
 /**
  * of_get_ibm_chip_id - Returns the IBM "chip-id" of a device
  * @np: device node of the device
diff --git a/drivers/of/base.c b/drivers/of/base.c
index 865d3f66c86b..b2cee3db5ceb 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -1884,3 +1884,34 @@ int of_device_is_stdout_path(struct device_node *dn)
 	return of_stdout == dn;
 }
 EXPORT_SYMBOL_GPL(of_device_is_stdout_path);
+
+/**
+ *	of_find_next_cache_node - Find a node's subsidiary cache
+ *	@np:	node of type "cpu" or "cache"
+ *
+ *	Returns a node pointer with refcount incremented, use
+ *	of_node_put() on it when done.  Caller should hold a reference
+ *	to np.
+ */
+struct device_node *of_find_next_cache_node(const struct device_node *np)
+{
+	struct device_node *child;
+	const phandle *handle;
+
+	handle = of_get_property(np, "l2-cache", NULL);
+	if (!handle)
+		handle = of_get_property(np, "next-level-cache", NULL);
+
+	if (handle)
+		return of_find_node_by_phandle(be32_to_cpup(handle));
+
+	/* OF on pmac has nodes instead of properties named "l2-cache"
+	 * beneath CPU nodes.
+	 */
+	if (!strcmp(np->type, "cpu"))
+		for_each_child_of_node(np, child)
+			if (!strcmp(child->type, "cache"))
+				return child;
+
+	return NULL;
+}
diff --git a/include/linux/of.h b/include/linux/of.h
index f95aee391e30..c08c07e249b3 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -226,6 +226,8 @@ static inline int of_get_child_count(const struct device_node *np)
 	return num;
 }
 
+/* cache lookup */
+extern struct device_node *of_find_next_cache_node(const struct device_node *);
 extern struct device_node *of_find_node_with_property(
 	struct device_node *from, const char *prop_name);
 #define for_each_node_with_property(dn, prop_name) \
-- 
cgit 


From a40a2b670706494610d794927b9aebe77e18af8d Mon Sep 17 00:00:00 2001
From: Vladimir Murzin <murzin.v@gmail.com>
Date: Sat, 28 Sep 2013 10:22:00 +0200
Subject: powerpc/bpf: Fix DIVWU instruction opcode

Currently DIVWU stands for *signed* divw opcode:

7d 2a 4b 96 	divwu   r9,r10,r9
7d 2a 4b d6 	divw    r9,r10,r9

Use the *unsigned* divw opcode for DIVWU.

Suggested-by: Vassili Karpov <av1474@comtv.ru>
Reviewed-by: Vassili Karpov <av1474@comtv.ru>
Signed-off-by: Vladimir Murzin <murzin.v@gmail.com>
Acked-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/ppc-opcode.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h
index 99f87906de17..3132bb9365f3 100644
--- a/arch/powerpc/include/asm/ppc-opcode.h
+++ b/arch/powerpc/include/asm/ppc-opcode.h
@@ -222,7 +222,7 @@
 #define PPC_INST_MULLW			0x7c0001d6
 #define PPC_INST_MULHWU			0x7c000016
 #define PPC_INST_MULLI			0x1c000000
-#define PPC_INST_DIVWU			0x7c0003d6
+#define PPC_INST_DIVWU			0x7c000396
 #define PPC_INST_RLWINM			0x54000000
 #define PPC_INST_RLDICR			0x78000004
 #define PPC_INST_SLW			0x7c000030
-- 
cgit 


From b0c06d333505c5503d0de5dee1ddf8478dcf5251 Mon Sep 17 00:00:00 2001
From: Vladimir Murzin <murzin.v@gmail.com>
Date: Sat, 28 Sep 2013 10:22:01 +0200
Subject: powerpc/bpf: Support MOD operation

commit b6069a9570 (filter: add MOD operation) added generic
support for modulus operation in BPF.

This patch brings JIT support for PPC64

Signed-off-by: Vladimir Murzin <murzin.v@gmail.com>
Acked-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/net/bpf_jit.h      |  1 +
 arch/powerpc/net/bpf_jit_comp.c | 20 ++++++++++++++++++++
 2 files changed, 21 insertions(+)

diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h
index 0baf2b826e25..9aee27c582dc 100644
--- a/arch/powerpc/net/bpf_jit.h
+++ b/arch/powerpc/net/bpf_jit.h
@@ -39,6 +39,7 @@
 #define r_X		5
 #define r_addr		6
 #define r_scratch1	7
+#define r_scratch2	8
 #define r_D		14
 #define r_HL		15
 #define r_M		16
diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c
index 81cd6c79babe..475d4f26fc6e 100644
--- a/arch/powerpc/net/bpf_jit_comp.c
+++ b/arch/powerpc/net/bpf_jit_comp.c
@@ -187,6 +187,26 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image,
 				PPC_MUL(r_A, r_A, r_scratch1);
 			}
 			break;
+		case BPF_S_ALU_MOD_X: /* A %= X; */
+			ctx->seen |= SEEN_XREG;
+			PPC_CMPWI(r_X, 0);
+			if (ctx->pc_ret0 != -1) {
+				PPC_BCC(COND_EQ, addrs[ctx->pc_ret0]);
+			} else {
+				PPC_BCC_SHORT(COND_NE, (ctx->idx*4)+12);
+				PPC_LI(r_ret, 0);
+				PPC_JMP(exit_addr);
+			}
+			PPC_DIVWU(r_scratch1, r_A, r_X);
+			PPC_MUL(r_scratch1, r_X, r_scratch1);
+			PPC_SUB(r_A, r_A, r_scratch1);
+			break;
+		case BPF_S_ALU_MOD_K: /* A %= K; */
+			PPC_LI32(r_scratch2, K);
+			PPC_DIVWU(r_scratch1, r_A, r_scratch2);
+			PPC_MUL(r_scratch1, r_scratch2, r_scratch1);
+			PPC_SUB(r_A, r_A, r_scratch1);
+			break;
 		case BPF_S_ALU_DIV_X: /* A /= X; */
 			ctx->seen |= SEEN_XREG;
 			PPC_CMPWI(r_X, 0);
-- 
cgit 


From 1bfa6e0d1f7f42ea52c79051f027dbcf8f123e41 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 18 Apr 2013 18:35:22 -0300
Subject: [media] V4L2: (cosmetic) remove redundant use of unlikely()

BUG*() and WARN*() macros specify their conditions as unlikely, using
BUG_ON(unlikely(condition)) is redundant, remove it.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 include/media/v4l2-subdev.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index bfda0fe9aeb0..46768eed7464 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -622,8 +622,8 @@ struct v4l2_subdev_fh {
 	v4l2_subdev_get_try_##fun_name(struct v4l2_subdev_fh *fh,	\
 				       unsigned int pad)		\
 	{								\
-		BUG_ON(unlikely(pad >= vdev_to_v4l2_subdev(		\
-					fh->vfh.vdev)->entity.num_pads)); \
+		BUG_ON(pad >= vdev_to_v4l2_subdev(			\
+					fh->vfh.vdev)->entity.num_pads); \
 		return &fh->pad[pad].field_name;			\
 	}
 
-- 
cgit 


From 507fcd3da2a28b5342cd0e3eea69b886741adb60 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 18 Apr 2013 18:35:23 -0300
Subject: [media] imx074: fix error handling for failed async subdevice
 registration

If v4l2_async_register_subdev() fails, don't skip the clean up.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/i2c/soc_camera/imx074.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/media/i2c/soc_camera/imx074.c b/drivers/media/i2c/soc_camera/imx074.c
index 1d384a371b41..5b915936c3f3 100644
--- a/drivers/media/i2c/soc_camera/imx074.c
+++ b/drivers/media/i2c/soc_camera/imx074.c
@@ -451,7 +451,9 @@ static int imx074_probe(struct i2c_client *client,
 	if (ret < 0)
 		goto eprobe;
 
-	return v4l2_async_register_subdev(&priv->subdev);
+	ret = v4l2_async_register_subdev(&priv->subdev);
+	if (!ret)
+		return 0;
 
 epwrinit:
 eprobe:
-- 
cgit 


From b1cbab05d9adbd8d6d7afc822b809c5d47c46f94 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 18 Apr 2013 18:35:27 -0300
Subject: [media] V4L2: add a common V4L2 subdevice platform data type

This struct shall be used by subdevice drivers to pass per-subdevice data,
e.g. power supplies, to generic V4L2 methods, at the same time allowing
optional host-specific extensions via the host_priv pointer. To avoid
having to pass two pointers to those methods, add a pointer to this new
struct to struct v4l2_subdev.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 include/media/v4l2-subdev.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 46768eed7464..27b28506f749 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -559,6 +559,17 @@ struct v4l2_subdev_internal_ops {
 /* Set this flag if this subdev generates events. */
 #define V4L2_SUBDEV_FL_HAS_EVENTS		(1U << 3)
 
+struct regulator_bulk_data;
+
+struct v4l2_subdev_platform_data {
+	/* Optional regulators uset to power on/off the subdevice */
+	struct regulator_bulk_data *regulators;
+	int num_regulators;
+
+	/* Per-subdevice data, specific for a certain video host device */
+	void *host_priv;
+};
+
 /* Each instance of a subdev driver should create this struct, either
    stand-alone or embedded in a larger struct.
  */
@@ -592,6 +603,8 @@ struct v4l2_subdev {
 	struct v4l2_async_subdev *asd;
 	/* Pointer to the managing notifier. */
 	struct v4l2_async_notifier *notifier;
+	/* common part of subdevice platform data */
+	struct v4l2_subdev_platform_data *pdata;
 };
 
 #define media_entity_to_v4l2_subdev(ent) \
-- 
cgit 


From d3f884a70938b1776ba44c7b6c82f3c3fd54ccbd Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Thu, 18 Apr 2013 18:35:28 -0300
Subject: [media] soc-camera: switch to using the new struct
 v4l2_subdev_platform_data

This prepares soc-camera to use struct v4l2_subdev_platform_data for its
subdevice-facing API, which would allow subdevice driver re-use.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/soc_camera/soc_camera.c | 24 ++++++++++++------------
 include/media/soc_camera.h                     | 17 +++++++++--------
 2 files changed, 21 insertions(+), 20 deletions(-)

diff --git a/drivers/media/platform/soc_camera/soc_camera.c b/drivers/media/platform/soc_camera/soc_camera.c
index 387a232d95a4..e201d48de70e 100644
--- a/drivers/media/platform/soc_camera/soc_camera.c
+++ b/drivers/media/platform/soc_camera/soc_camera.c
@@ -76,8 +76,8 @@ int soc_camera_power_on(struct device *dev, struct soc_camera_subdev_desc *ssdd,
 		dev_err(dev, "Cannot enable clock: %d\n", ret);
 		return ret;
 	}
-	ret = regulator_bulk_enable(ssdd->num_regulators,
-					ssdd->regulators);
+	ret = regulator_bulk_enable(ssdd->sd_pdata.num_regulators,
+				    ssdd->sd_pdata.regulators);
 	if (ret < 0) {
 		dev_err(dev, "Cannot enable regulators\n");
 		goto eregenable;
@@ -95,8 +95,8 @@ int soc_camera_power_on(struct device *dev, struct soc_camera_subdev_desc *ssdd,
 	return 0;
 
 epwron:
-	regulator_bulk_disable(ssdd->num_regulators,
-			       ssdd->regulators);
+	regulator_bulk_disable(ssdd->sd_pdata.num_regulators,
+			       ssdd->sd_pdata.regulators);
 eregenable:
 	if (clk)
 		v4l2_clk_disable(clk);
@@ -120,8 +120,8 @@ int soc_camera_power_off(struct device *dev, struct soc_camera_subdev_desc *ssdd
 		}
 	}
 
-	err = regulator_bulk_disable(ssdd->num_regulators,
-				     ssdd->regulators);
+	err = regulator_bulk_disable(ssdd->sd_pdata.num_regulators,
+				     ssdd->sd_pdata.regulators);
 	if (err < 0) {
 		dev_err(dev, "Cannot disable regulators\n");
 		ret = ret ? : err;
@@ -137,8 +137,8 @@ EXPORT_SYMBOL(soc_camera_power_off);
 int soc_camera_power_init(struct device *dev, struct soc_camera_subdev_desc *ssdd)
 {
 	/* Should not have any effect in synchronous case */
-	return devm_regulator_bulk_get(dev, ssdd->num_regulators,
-				       ssdd->regulators);
+	return devm_regulator_bulk_get(dev, ssdd->sd_pdata.num_regulators,
+				       ssdd->sd_pdata.regulators);
 }
 EXPORT_SYMBOL(soc_camera_power_init);
 
@@ -1346,8 +1346,8 @@ static int soc_camera_i2c_init(struct soc_camera_device *icd,
 	 * soc_camera_pdrv_probe(), make sure the subdevice driver doesn't try
 	 * to allocate them again.
 	 */
-	ssdd->num_regulators = 0;
-	ssdd->regulators = NULL;
+	ssdd->sd_pdata.num_regulators = 0;
+	ssdd->sd_pdata.regulators = NULL;
 	shd->board_info->platform_data = ssdd;
 
 	snprintf(clk_name, sizeof(clk_name), "%d-%04x",
@@ -2020,8 +2020,8 @@ static int soc_camera_pdrv_probe(struct platform_device *pdev)
 	 * that case regulators are attached to the I2C device and not to the
 	 * camera platform device.
 	 */
-	ret = devm_regulator_bulk_get(&pdev->dev, ssdd->num_regulators,
-				      ssdd->regulators);
+	ret = devm_regulator_bulk_get(&pdev->dev, ssdd->sd_pdata.num_regulators,
+				      ssdd->sd_pdata.regulators);
 	if (ret < 0)
 		return ret;
 
diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h
index 34d2414f2b8c..2bb418346b1f 100644
--- a/include/media/soc_camera.h
+++ b/include/media/soc_camera.h
@@ -146,10 +146,6 @@ struct soc_camera_subdev_desc {
 	/* sensor driver private platform data */
 	void *drv_priv;
 
-	/* Optional regulators that have to be managed on power on/off events */
-	struct regulator_bulk_data *regulators;
-	int num_regulators;
-
 	/* Optional callbacks to power on or off and reset the sensor */
 	int (*power)(struct device *, int);
 	int (*reset)(struct device *);
@@ -162,6 +158,9 @@ struct soc_camera_subdev_desc {
 	int (*set_bus_param)(struct soc_camera_subdev_desc *, unsigned long flags);
 	unsigned long (*query_bus_param)(struct soc_camera_subdev_desc *);
 	void (*free_bus)(struct soc_camera_subdev_desc *);
+
+	/* Optional regulators that have to be managed on power on/off events */
+	struct v4l2_subdev_platform_data sd_pdata;
 };
 
 struct soc_camera_host_desc {
@@ -202,10 +201,6 @@ struct soc_camera_link {
 
 	void *priv;
 
-	/* Optional regulators that have to be managed on power on/off events */
-	struct regulator_bulk_data *regulators;
-	int num_regulators;
-
 	/* Optional callbacks to power on or off and reset the sensor */
 	int (*power)(struct device *, int);
 	int (*reset)(struct device *);
@@ -218,6 +213,12 @@ struct soc_camera_link {
 	unsigned long (*query_bus_param)(struct soc_camera_link *);
 	void (*free_bus)(struct soc_camera_link *);
 
+	/* Optional regulators that have to be managed on power on/off events */
+	struct regulator_bulk_data *regulators;
+	int num_regulators;
+
+	void *host_priv;
+
 	/*
 	 * Host part - keep at bottom and compatible to
 	 * struct soc_camera_host_desc
-- 
cgit 


From cf326dfebe612bf56c83d8fca7a7c1d1584c061f Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Wed, 28 Aug 2013 10:28:26 -0300
Subject: [media] V4L2: add v4l2-clock helpers to register and unregister a
 fixed-rate clock

Many bridges and video host controllers supply fixed rate always on clocks
to their I2C devices. This patch adds two simple helpers to register and
unregister such a clock.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/v4l2-core/v4l2-clk.c | 39 ++++++++++++++++++++++++++++++++++++++
 include/media/v4l2-clk.h           | 14 ++++++++++++++
 2 files changed, 53 insertions(+)

diff --git a/drivers/media/v4l2-core/v4l2-clk.c b/drivers/media/v4l2-core/v4l2-clk.c
index b67de8642b5a..e18cc0469cf8 100644
--- a/drivers/media/v4l2-core/v4l2-clk.c
+++ b/drivers/media/v4l2-core/v4l2-clk.c
@@ -240,3 +240,42 @@ void v4l2_clk_unregister(struct v4l2_clk *clk)
 	kfree(clk);
 }
 EXPORT_SYMBOL(v4l2_clk_unregister);
+
+struct v4l2_clk_fixed {
+	unsigned long rate;
+	struct v4l2_clk_ops ops;
+};
+
+static unsigned long fixed_get_rate(struct v4l2_clk *clk)
+{
+	struct v4l2_clk_fixed *priv = clk->priv;
+	return priv->rate;
+}
+
+struct v4l2_clk *__v4l2_clk_register_fixed(const char *dev_id,
+		const char *id, unsigned long rate, struct module *owner)
+{
+	struct v4l2_clk *clk;
+	struct v4l2_clk_fixed *priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+
+	if (!priv)
+		return ERR_PTR(-ENOMEM);
+
+	priv->rate = rate;
+	priv->ops.get_rate = fixed_get_rate;
+	priv->ops.owner = owner;
+
+	clk = v4l2_clk_register(&priv->ops, dev_id, id, priv);
+	if (IS_ERR(clk))
+		kfree(priv);
+
+	return clk;
+}
+EXPORT_SYMBOL(__v4l2_clk_register_fixed);
+
+void v4l2_clk_unregister_fixed(struct v4l2_clk *clk)
+{
+	kfree(clk->priv);
+	v4l2_clk_unregister(clk);
+}
+EXPORT_SYMBOL(v4l2_clk_unregister_fixed);
diff --git a/include/media/v4l2-clk.h b/include/media/v4l2-clk.h
index 0503a90b48bb..a354a9d6456e 100644
--- a/include/media/v4l2-clk.h
+++ b/include/media/v4l2-clk.h
@@ -15,6 +15,7 @@
 #define MEDIA_V4L2_CLK_H
 
 #include <linux/atomic.h>
+#include <linux/export.h>
 #include <linux/list.h>
 #include <linux/mutex.h>
 
@@ -51,4 +52,17 @@ void v4l2_clk_disable(struct v4l2_clk *clk);
 unsigned long v4l2_clk_get_rate(struct v4l2_clk *clk);
 int v4l2_clk_set_rate(struct v4l2_clk *clk, unsigned long rate);
 
+struct module;
+
+struct v4l2_clk *__v4l2_clk_register_fixed(const char *dev_id,
+		const char *id, unsigned long rate, struct module *owner);
+void v4l2_clk_unregister_fixed(struct v4l2_clk *clk);
+
+static inline struct v4l2_clk *v4l2_clk_register_fixed(const char *dev_id,
+							const char *id,
+							unsigned long rate)
+{
+	return __v4l2_clk_register_fixed(dev_id, id, rate, THIS_MODULE);
+}
+
 #endif
-- 
cgit 


From 774cc4c289152bfb77806ccae722a9ae2d29dd02 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Wed, 28 Aug 2013 10:28:27 -0300
Subject: [media] V4L2: add a v4l2-clk helper macro to produce an I2C device ID

To obtain a clock reference consumers supply their device object to the
V4L2 clock framework. The latter then uses the consumer device name to
find a matching clock. For that to work V4L2 clock providers have to
provide the same device name, when registering clocks. This patch adds
a helper macro to generate a suitable device name for I2C devices.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 include/media/v4l2-clk.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/media/v4l2-clk.h b/include/media/v4l2-clk.h
index a354a9d6456e..0b36cc138304 100644
--- a/include/media/v4l2-clk.h
+++ b/include/media/v4l2-clk.h
@@ -65,4 +65,7 @@ static inline struct v4l2_clk *v4l2_clk_register_fixed(const char *dev_id,
 	return __v4l2_clk_register_fixed(dev_id, id, rate, THIS_MODULE);
 }
 
+#define v4l2_clk_name_i2c(name, size, adap, client) snprintf(name, size, \
+			  "%d-%04x", adap, client)
+
 #endif
-- 
cgit 


From fc5d0f8a8878319f6cb87045fd704360b2bb4e52 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Wed, 28 Aug 2013 10:28:28 -0300
Subject: [media] V4L2: em28xx: register a V4L2 clock source

Camera sensors usually require a master clock for data sampling. This patch
registers such a clock source for em28xx cameras. This fixes the currently
broken em28xx ov2640 camera support and can also be used by other camera
sensors.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/em28xx/em28xx-camera.c | 41 ++++++++++++++++++++++++--------
 drivers/media/usb/em28xx/em28xx-cards.c  |  3 +++
 drivers/media/usb/em28xx/em28xx.h        |  1 +
 3 files changed, 35 insertions(+), 10 deletions(-)

diff --git a/drivers/media/usb/em28xx/em28xx-camera.c b/drivers/media/usb/em28xx/em28xx-camera.c
index 73cc50afa5e1..2f451e40edaf 100644
--- a/drivers/media/usb/em28xx/em28xx-camera.c
+++ b/drivers/media/usb/em28xx/em28xx-camera.c
@@ -22,6 +22,7 @@
 #include <linux/i2c.h>
 #include <media/soc_camera.h>
 #include <media/mt9v011.h>
+#include <media/v4l2-clk.h>
 #include <media/v4l2-common.h>
 
 #include "em28xx.h"
@@ -325,13 +326,24 @@ int em28xx_detect_sensor(struct em28xx *dev)
 
 int em28xx_init_camera(struct em28xx *dev)
 {
+	char clk_name[V4L2_SUBDEV_NAME_SIZE];
+	struct i2c_client *client = &dev->i2c_client[dev->def_i2c_bus];
+	struct i2c_adapter *adap = &dev->i2c_adap[dev->def_i2c_bus];
+	int ret = 0;
+
+	v4l2_clk_name_i2c(clk_name, sizeof(clk_name),
+			  i2c_adapter_id(adap), client->addr);
+	dev->clk = v4l2_clk_register_fixed(clk_name, "mclk", -EINVAL);
+	if (IS_ERR(dev->clk))
+		return PTR_ERR(dev->clk);
+
 	switch (dev->em28xx_sensor) {
 	case EM28XX_MT9V011:
 	{
 		struct mt9v011_platform_data pdata;
 		struct i2c_board_info mt9v011_info = {
 			.type = "mt9v011",
-			.addr = dev->i2c_client[dev->def_i2c_bus].addr,
+			.addr = client->addr,
 			.platform_data = &pdata,
 		};
 
@@ -352,10 +364,11 @@ int em28xx_init_camera(struct em28xx *dev)
 		dev->sensor_xtal = 4300000;
 		pdata.xtal = dev->sensor_xtal;
 		if (NULL ==
-		    v4l2_i2c_new_subdev_board(&dev->v4l2_dev,
-					      &dev->i2c_adap[dev->def_i2c_bus],
-					      &mt9v011_info, NULL))
-			return -ENODEV;
+		    v4l2_i2c_new_subdev_board(&dev->v4l2_dev, adap,
+					      &mt9v011_info, NULL)) {
+			ret = -ENODEV;
+			break;
+		}
 		/* probably means GRGB 16 bit bayer */
 		dev->vinmode = 0x0d;
 		dev->vinctl = 0x00;
@@ -391,7 +404,7 @@ int em28xx_init_camera(struct em28xx *dev)
 		struct i2c_board_info ov2640_info = {
 			.type = "ov2640",
 			.flags = I2C_CLIENT_SCCB,
-			.addr = dev->i2c_client[dev->def_i2c_bus].addr,
+			.addr = client->addr,
 			.platform_data = &camlink,
 		};
 		struct v4l2_mbus_framefmt fmt;
@@ -408,9 +421,12 @@ int em28xx_init_camera(struct em28xx *dev)
 		dev->sensor_yres = 480;
 
 		subdev =
-		     v4l2_i2c_new_subdev_board(&dev->v4l2_dev,
-					       &dev->i2c_adap[dev->def_i2c_bus],
+		     v4l2_i2c_new_subdev_board(&dev->v4l2_dev, adap,
 					       &ov2640_info, NULL);
+		if (NULL == subdev) {
+			ret = -ENODEV;
+			break;
+		}
 
 		fmt.code = V4L2_MBUS_FMT_YUYV8_2X8;
 		fmt.width = 640;
@@ -427,8 +443,13 @@ int em28xx_init_camera(struct em28xx *dev)
 	}
 	case EM28XX_NOSENSOR:
 	default:
-		return -EINVAL;
+		ret = -EINVAL;
 	}
 
-	return 0;
+	if (ret < 0) {
+		v4l2_clk_unregister_fixed(dev->clk);
+		dev->clk = NULL;
+	}
+
+	return ret;
 }
diff --git a/drivers/media/usb/em28xx/em28xx-cards.c b/drivers/media/usb/em28xx/em28xx-cards.c
index 3765670f742a..464cec060fa4 100644
--- a/drivers/media/usb/em28xx/em28xx-cards.c
+++ b/drivers/media/usb/em28xx/em28xx-cards.c
@@ -36,6 +36,7 @@
 #include <media/tvaudio.h>
 #include <media/i2c-addr.h>
 #include <media/tveeprom.h>
+#include <media/v4l2-clk.h>
 #include <media/v4l2-common.h>
 
 #include "em28xx.h"
@@ -2857,6 +2858,8 @@ void em28xx_release_resources(struct em28xx *dev)
 	if (dev->def_i2c_bus)
 		em28xx_i2c_unregister(dev, 1);
 	em28xx_i2c_unregister(dev, 0);
+	if (dev->clk)
+		v4l2_clk_unregister_fixed(dev->clk);
 
 	v4l2_ctrl_handler_free(&dev->ctrl_handler);
 
diff --git a/drivers/media/usb/em28xx/em28xx.h b/drivers/media/usb/em28xx/em28xx.h
index 205e9038b1c0..c9ebe19d064c 100644
--- a/drivers/media/usb/em28xx/em28xx.h
+++ b/drivers/media/usb/em28xx/em28xx.h
@@ -492,6 +492,7 @@ struct em28xx {
 
 	struct v4l2_device v4l2_dev;
 	struct v4l2_ctrl_handler ctrl_handler;
+	struct v4l2_clk *clk;
 	struct em28xx_board board;
 
 	/* Webcam specific fields */
-- 
cgit 


From 40f075330adfa497cc2894f9c6a32bb99c5cd5b8 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Mon, 21 Oct 2013 06:28:02 -0300
Subject: [media] V4L2: soc-camera: work around unbalanced calls to .s_power()

Some non soc-camera drivers, e.g. em28xx, use subdevice drivers, originally
written for soc-camera, which use soc_camera_power_on() and
soc_camera_power_off() helpers to implement their .s_power() methods. Those
helpers in turn can enable and disable a clock, if it is supplied to them
as a parameter. This works well when camera host drivers balance their
calls to subdevices' .s_power() methods. However, some such drivers fail to
do that, which leads to unbalanced calls to v4l2_clk_enable() /
v4l2_clk_disable(), which then in turn produce kernel warnings. Such
behaviour is wrong and should be fixed, however, sometimes it is difficult,
because some of those drivers are rather old and use lots of subdevices,
which all should be tested after such a fix. To support such drivers this
patch adds a work-around, allowing host drivers or platforms to set a flag,
in which case soc-camera helpers will only enable the clock, if it is
disabled, and disable it only once on the first call to .s_power(0).

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/soc_camera/soc_camera.c | 22 ++++++++++++++++------
 include/media/soc_camera.h                     | 14 ++++++++++++++
 2 files changed, 30 insertions(+), 6 deletions(-)

diff --git a/drivers/media/platform/soc_camera/soc_camera.c b/drivers/media/platform/soc_camera/soc_camera.c
index e201d48de70e..4b8c024fc487 100644
--- a/drivers/media/platform/soc_camera/soc_camera.c
+++ b/drivers/media/platform/soc_camera/soc_camera.c
@@ -71,11 +71,21 @@ static int video_dev_create(struct soc_camera_device *icd);
 int soc_camera_power_on(struct device *dev, struct soc_camera_subdev_desc *ssdd,
 			struct v4l2_clk *clk)
 {
-	int ret = clk ? v4l2_clk_enable(clk) : 0;
-	if (ret < 0) {
-		dev_err(dev, "Cannot enable clock: %d\n", ret);
-		return ret;
+	int ret;
+	bool clock_toggle;
+
+	if (clk && (!ssdd->unbalanced_power ||
+		    !test_and_set_bit(0, &ssdd->clock_state))) {
+		ret = v4l2_clk_enable(clk);
+		if (ret < 0) {
+			dev_err(dev, "Cannot enable clock: %d\n", ret);
+			return ret;
+		}
+		clock_toggle = true;
+	} else {
+		clock_toggle = false;
 	}
+
 	ret = regulator_bulk_enable(ssdd->sd_pdata.num_regulators,
 				    ssdd->sd_pdata.regulators);
 	if (ret < 0) {
@@ -98,7 +108,7 @@ epwron:
 	regulator_bulk_disable(ssdd->sd_pdata.num_regulators,
 			       ssdd->sd_pdata.regulators);
 eregenable:
-	if (clk)
+	if (clock_toggle)
 		v4l2_clk_disable(clk);
 
 	return ret;
@@ -127,7 +137,7 @@ int soc_camera_power_off(struct device *dev, struct soc_camera_subdev_desc *ssdd
 		ret = ret ? : err;
 	}
 
-	if (clk)
+	if (clk && (!ssdd->unbalanced_power || test_and_clear_bit(0, &ssdd->clock_state)))
 		v4l2_clk_disable(clk);
 
 	return ret;
diff --git a/include/media/soc_camera.h b/include/media/soc_camera.h
index 2bb418346b1f..865246b00127 100644
--- a/include/media/soc_camera.h
+++ b/include/media/soc_camera.h
@@ -146,6 +146,15 @@ struct soc_camera_subdev_desc {
 	/* sensor driver private platform data */
 	void *drv_priv;
 
+	/*
+	 * Set unbalanced_power to true to deal with legacy drivers, failing to
+	 * balance their calls to subdevice's .s_power() method. clock_state is
+	 * then used internally by helper functions, it shouldn't be touched by
+	 * drivers or the platform code.
+	 */
+	bool unbalanced_power;
+	unsigned long clock_state;
+
 	/* Optional callbacks to power on or off and reset the sensor */
 	int (*power)(struct device *, int);
 	int (*reset)(struct device *);
@@ -201,6 +210,11 @@ struct soc_camera_link {
 
 	void *priv;
 
+	/* Set by platforms to handle misbehaving drivers */
+	bool unbalanced_power;
+	/* Used by soc-camera helper functions */
+	unsigned long clock_state;
+
 	/* Optional callbacks to power on or off and reset the sensor */
 	int (*power)(struct device *, int);
 	int (*reset)(struct device *);
-- 
cgit 


From be353fa188eed6731910ffd35135703eb032cff1 Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Mon, 21 Oct 2013 06:28:06 -0300
Subject: [media] V4L2: em28xx: tell the ov2640 driver to balance clock
 enabling internally

The em28xx driver only calls subdevices' .s_power() method to power them
down, relying on the hardware to wake up automatically, which is usually
the case with tuners. This was acceptable with the old .standby() method,
but is wrong with .s_power(). Fixing the driver would be difficult due to
a broad supported hardware base. Instead this patch makes use of the
unbalanced_power soc-camera subdevice flag to tell the ov2640 driver to
balance calls to v4l2_clk_enable() and v4l2_clk_disable() internally.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/em28xx/em28xx-camera.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/usb/em28xx/em28xx-camera.c b/drivers/media/usb/em28xx/em28xx-camera.c
index 2f451e40edaf..d666741797d4 100644
--- a/drivers/media/usb/em28xx/em28xx-camera.c
+++ b/drivers/media/usb/em28xx/em28xx-camera.c
@@ -48,6 +48,7 @@ static struct soc_camera_link camlink = {
 	.bus_id = 0,
 	.flags = 0,
 	.module_name = "em28xx",
+	.unbalanced_power = true,
 };
 
 
-- 
cgit 


From ca0c9f17f3737f4857ec0406a75b26b84b2e8c16 Mon Sep 17 00:00:00 2001
From: Valentine Barshak <valentine.barshak@cogentembedded.com>
Date: Fri, 4 Oct 2013 11:20:52 -0300
Subject: [media] media: rcar_vin: Add preliminary r8a7790 support

Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/soc_camera/rcar_vin.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/media/platform/soc_camera/rcar_vin.c b/drivers/media/platform/soc_camera/rcar_vin.c
index d02a7e0b773f..b21f777f55e7 100644
--- a/drivers/media/platform/soc_camera/rcar_vin.c
+++ b/drivers/media/platform/soc_camera/rcar_vin.c
@@ -105,6 +105,7 @@
 #define VIN_MAX_HEIGHT		2048
 
 enum chip_id {
+	RCAR_H2,
 	RCAR_H1,
 	RCAR_M1,
 	RCAR_E1,
@@ -300,7 +301,8 @@ static int rcar_vin_setup(struct rcar_vin_priv *priv)
 		dmr = 0;
 		break;
 	case V4L2_PIX_FMT_RGB32:
-		if (priv->chip == RCAR_H1 || priv->chip == RCAR_E1) {
+		if (priv->chip == RCAR_H2 || priv->chip == RCAR_H1 ||
+		    priv->chip == RCAR_E1) {
 			dmr = VNDMR_EXRGB;
 			break;
 		}
@@ -1381,6 +1383,7 @@ static struct soc_camera_host_ops rcar_vin_host_ops = {
 };
 
 static struct platform_device_id rcar_vin_id_table[] = {
+	{ "r8a7790-vin",  RCAR_H2 },
 	{ "r8a7779-vin",  RCAR_H1 },
 	{ "r8a7778-vin",  RCAR_M1 },
 	{ "uPD35004-vin", RCAR_E1 },
-- 
cgit 


From c656ead48fa5ab4af973f8135400b1695184ef31 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 03:01:46 -0300
Subject: [media] sh_mobile_ceu_camera: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag
It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c b/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c
index 8df22f779175..150bd4df413c 100644
--- a/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c
+++ b/drivers/media/platform/soc_camera/sh_mobile_ceu_camera.c
@@ -1800,7 +1800,7 @@ static int sh_mobile_ceu_probe(struct platform_device *pdev)
 
 	/* request irq */
 	err = devm_request_irq(&pdev->dev, pcdev->irq, sh_mobile_ceu_irq,
-			       IRQF_DISABLED, dev_name(&pdev->dev), pcdev);
+			       0, dev_name(&pdev->dev), pcdev);
 	if (err) {
 		dev_err(&pdev->dev, "Unable to register CEU interrupt.\n");
 		goto exit_release_mem;
-- 
cgit 


From 0e48a3e8f616026195416e5d61c6cf24f686c2d8 Mon Sep 17 00:00:00 2001
From: Alexandru Juncu <alexj@rosedu.org>
Date: Wed, 4 Sep 2013 11:41:34 -0300
Subject: [media] dm1105: remove unneeded not-null test

i2c_adap is a field of a struct and will always be allocated so
its address will never be null.
Suggested by coccinelle, manually verified.

Signed-off-by: Alexandru Juncu <alexj@rosedu.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/dm1105/dm1105.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/media/pci/dm1105/dm1105.c b/drivers/media/pci/dm1105/dm1105.c
index e985e3b0f647..e60ac35fc10c 100644
--- a/drivers/media/pci/dm1105/dm1105.c
+++ b/drivers/media/pci/dm1105/dm1105.c
@@ -1201,8 +1201,7 @@ static void dm1105_remove(struct pci_dev *pdev)
 	dvb_dmxdev_release(&dev->dmxdev);
 	dvb_dmx_release(dvbdemux);
 	dvb_unregister_adapter(dvb_adapter);
-	if (&dev->i2c_adap)
-		i2c_del_adapter(&dev->i2c_adap);
+	i2c_del_adapter(&dev->i2c_adap);
 
 	dm1105_hw_exit(dev);
 	synchronize_irq(pdev->irq);
-- 
cgit 


From 0e7e4d26cf3437bf3510e98e3c6d05b422a6943a Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 02:55:14 -0300
Subject: [media] ngene: Remove casting the return value which is a void
 pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/ngene/ngene-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/ngene/ngene-core.c b/drivers/media/pci/ngene/ngene-core.c
index 8402ed6d886e..970e83308525 100644
--- a/drivers/media/pci/ngene/ngene-core.c
+++ b/drivers/media/pci/ngene/ngene-core.c
@@ -1622,7 +1622,7 @@ static void ngene_unlink(struct ngene *dev)
 
 void ngene_shutdown(struct pci_dev *pdev)
 {
-	struct ngene *dev = (struct ngene *)pci_get_drvdata(pdev);
+	struct ngene *dev = pci_get_drvdata(pdev);
 
 	if (!dev || !shutdown_workaround)
 		return;
-- 
cgit 


From 1fbf86a04e52dca0cebc65bd02725b6f982de4f2 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 02:56:07 -0300
Subject: [media] ddbridge: Remove casting the return value which is a void
 pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/ddbridge/ddbridge-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/pci/ddbridge/ddbridge-core.c b/drivers/media/pci/ddbridge/ddbridge-core.c
index 36e34522b9a8..9375f30d9a81 100644
--- a/drivers/media/pci/ddbridge/ddbridge-core.c
+++ b/drivers/media/pci/ddbridge/ddbridge-core.c
@@ -1544,7 +1544,7 @@ static void ddb_unmap(struct ddb *dev)
 
 static void ddb_remove(struct pci_dev *pdev)
 {
-	struct ddb *dev = (struct ddb *) pci_get_drvdata(pdev);
+	struct ddb *dev = pci_get_drvdata(pdev);
 
 	ddb_ports_detach(dev);
 	ddb_i2c_release(dev);
-- 
cgit 


From c6dd1ef8f88257e70d8863d8784854e3e498e02c Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Thu, 12 Sep 2013 14:42:20 -0300
Subject: [media] staging/media: fix msi3101 build errors

Fix build error when VIDEOBUF2_CORE=m and USB_MSI3101=y.
drivers/built-in.o: In function `msi3101_buf_queue':
sdr-msi3101.c:(.text+0x1298d6): undefined reference to `vb2_buffer_done'
drivers/built-in.o: In function `msi3101_cleanup_queued_bufs':
sdr-msi3101.c:(.text+0x1299c7): undefined reference to `vb2_buffer_done'
drivers/built-in.o: In function `msi3101_isoc_handler':
sdr-msi3101.c:(.text+0x12a08d): undefined reference to `vb2_plane_vaddr'
sdr-msi3101.c:(.text+0x12a0b9): undefined reference to `vb2_buffer_done'
drivers/built-in.o: In function `msi3101_probe':
sdr-msi3101.c:(.text+0x12a1c5): undefined reference to `vb2_vmalloc_memops'
sdr-msi3101.c:(.text+0x12a1d7): undefined reference to `vb2_queue_init'
drivers/built-in.o:(.rodata+0x34cf0): undefined reference to `vb2_ioctl_reqbufs'
drivers/built-in.o:(.rodata+0x34cf4): undefined reference to `vb2_ioctl_querybuf'
drivers/built-in.o:(.rodata+0x34cf8): undefined reference to `vb2_ioctl_qbuf'
drivers/built-in.o:(.rodata+0x34d00): undefined reference to `vb2_ioctl_dqbuf'
drivers/built-in.o:(.rodata+0x34d04): undefined reference to `vb2_ioctl_create_bufs'
drivers/built-in.o:(.rodata+0x34d08): undefined reference to `vb2_ioctl_prepare_buf'
drivers/built-in.o:(.rodata+0x34d18): undefined reference to `vb2_ioctl_streamon'
drivers/built-in.o:(.rodata+0x34d1c): undefined reference to `vb2_ioctl_streamoff'
drivers/built-in.o:(.rodata+0x35580): undefined reference to `vb2_fop_read'
drivers/built-in.o:(.rodata+0x35588): undefined reference to `vb2_fop_poll'
drivers/built-in.o:(.rodata+0x35598): undefined reference to `vb2_fop_mmap'
drivers/built-in.o:(.rodata+0x355a0): undefined reference to `vb2_fop_release'
drivers/built-in.o:(.data+0x23b40): undefined reference to `vb2_ops_wait_prepare'
drivers/built-in.o:(.data+0x23b44): undefined reference to `vb2_ops_wait_finish'

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/staging/media/msi3101/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/media/msi3101/Kconfig b/drivers/staging/media/msi3101/Kconfig
index b94a95a597d6..0c349c8595e4 100644
--- a/drivers/staging/media/msi3101/Kconfig
+++ b/drivers/staging/media/msi3101/Kconfig
@@ -1,3 +1,5 @@
 config USB_MSI3101
 	tristate "Mirics MSi3101 SDR Dongle"
 	depends on USB && VIDEO_DEV && VIDEO_V4L2
+	select VIDEOBUF2_CORE
+	select VIDEOBUF2_VMALLOC
-- 
cgit 


From cfe58f9dcd9afe181894e2257e3f8aa3fee840c5 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Thu, 31 Oct 2013 14:57:01 +0900
Subject: f2fs: avoid to wait all the node blocks during fsync

Previously, f2fs_sync_file() waits for all the node blocks to be written.
But, we don't need to do that, but wait only the inode-related node blocks.

This patch adds wait_on_node_pages_writeback() in which waits inode-related
node blocks that are on writeback.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/f2fs.h |  1 +
 fs/f2fs/file.c |  5 +++--
 fs/f2fs/node.c | 40 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 44 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 6aaefdbaaac0..625eb4befad4 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1026,6 +1026,7 @@ void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *);
 int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int);
 int truncate_inode_blocks(struct inode *, pgoff_t);
 int truncate_xattr_node(struct inode *, struct page *);
+int wait_on_node_pages_writeback(struct f2fs_sb_info *, nid_t);
 int remove_inode_page(struct inode *);
 struct page *new_inode_page(struct inode *, const struct qstr *);
 struct page *new_node_page(struct dnode_of_data *, unsigned int, struct page *);
diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
index 58ed19aaa4c6..7d714f4972d5 100644
--- a/fs/f2fs/file.c
+++ b/fs/f2fs/file.c
@@ -189,8 +189,9 @@ int f2fs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
 			if (ret)
 				goto out;
 		}
-		filemap_fdatawait_range(sbi->node_inode->i_mapping,
-							0, LONG_MAX);
+		ret = wait_on_node_pages_writeback(sbi, inode->i_ino);
+		if (ret)
+			goto out;
 		ret = blkdev_issue_flush(inode->i_sb->s_bdev, GFP_KERNEL, NULL);
 	}
 out:
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 8e331d5b9fcd..b527ed4c0225 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1148,6 +1148,46 @@ continue_unlock:
 	return nwritten;
 }
 
+int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino)
+{
+	struct address_space *mapping = sbi->node_inode->i_mapping;
+	pgoff_t index = 0, end = LONG_MAX;
+	struct pagevec pvec;
+	int nr_pages;
+	int ret2 = 0, ret = 0;
+
+	pagevec_init(&pvec, 0);
+	while ((index <= end) &&
+			(nr_pages = pagevec_lookup_tag(&pvec, mapping, &index,
+			PAGECACHE_TAG_WRITEBACK,
+			min(end - index, (pgoff_t)PAGEVEC_SIZE-1) + 1)) != 0) {
+		unsigned i;
+
+		for (i = 0; i < nr_pages; i++) {
+			struct page *page = pvec.pages[i];
+
+			/* until radix tree lookup accepts end_index */
+			if (page->index > end)
+				continue;
+
+			if (ino && ino_of_node(page) == ino)
+				wait_on_page_writeback(page);
+			if (TestClearPageError(page))
+				ret = -EIO;
+		}
+		pagevec_release(&pvec);
+		cond_resched();
+	}
+
+	if (test_and_clear_bit(AS_ENOSPC, &mapping->flags))
+		ret2 = -ENOSPC;
+	if (test_and_clear_bit(AS_EIO, &mapping->flags))
+		ret2 = -EIO;
+	if (!ret)
+		ret = ret2;
+	return ret;
+}
+
 static int f2fs_write_node_page(struct page *page,
 				struct writeback_control *wbc)
 {
-- 
cgit 


From 6dbea9f0978fc47e26aaf1fd4246e63160b778a6 Mon Sep 17 00:00:00 2001
From: Jean-Francois Thibert <jfthibert@google.com>
Date: Wed, 9 Oct 2013 11:18:05 -0300
Subject: [media] Add support for KWorld UB435-Q V2
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This patch adds support for the UB435-Q V2. You might need to
use the device once with the Windows driver provided by KWorld
in order to permanently reprogram the device descriptors. Thanks
to Jarod Wilson for the initial attempt at adding support for this
device.

[m.chehab@samsung.com: Fixed Whitespace mangling, Coding Style and
 improved the error handling at DVB attach]
Signed-off-by: Jean-Francois Thibert <jfthibert@google.com>
Reviewed-by: Frank Schäfer <fschaefer.oss@googlemail.com>

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/em28xx/em28xx-cards.c | 16 +++++++++++++++-
 drivers/media/usb/em28xx/em28xx-dvb.c   | 34 +++++++++++++++++++++++++++++++++
 drivers/media/usb/em28xx/em28xx.h       |  1 +
 3 files changed, 50 insertions(+), 1 deletion(-)

diff --git a/drivers/media/usb/em28xx/em28xx-cards.c b/drivers/media/usb/em28xx/em28xx-cards.c
index 464cec060fa4..a5196697627f 100644
--- a/drivers/media/usb/em28xx/em28xx-cards.c
+++ b/drivers/media/usb/em28xx/em28xx-cards.c
@@ -175,7 +175,7 @@ static struct em28xx_reg_seq evga_indtube_digital[] = {
 };
 
 /*
- * KWorld PlusTV 340U and UB435-Q (ATSC) GPIOs map:
+ * KWorld PlusTV 340U, UB435-Q and UB435-Q V2 (ATSC) GPIOs map:
  * EM_GPIO_0 - currently unknown
  * EM_GPIO_1 - LED disable/enable (1 = off, 0 = on)
  * EM_GPIO_2 - currently unknown
@@ -2031,6 +2031,18 @@ struct em28xx_board em28xx_boards[] = {
 		.i2c_speed     = EM28XX_I2C_CLK_WAIT_ENABLE |
 				EM28XX_I2C_FREQ_400_KHZ,
 	},
+	/*
+	 * 1b80:e346 KWorld USB ATSC TV Stick UB435-Q V2
+	 * Empia EM2874B + LG DT3305 + NXP TDA18271HDC2
+	 */
+	[EM2874_BOARD_KWORLD_UB435Q_V2] = {
+		.name		= "KWorld USB ATSC TV Stick UB435-Q V2",
+		.tuner_type	= TUNER_ABSENT,
+		.has_dvb	= 1,
+		.dvb_gpio	= kworld_a340_digital,
+		.tuner_gpio	= default_tuner_gpio,
+		.def_i2c_bus	= 1,
+	},
 };
 const unsigned int em28xx_bcount = ARRAY_SIZE(em28xx_boards);
 
@@ -2174,6 +2186,8 @@ struct usb_device_id em28xx_id_table[] = {
 			.driver_info = EM2860_BOARD_GADMEI_UTV330 },
 	{ USB_DEVICE(0x1b80, 0xa340),
 			.driver_info = EM2870_BOARD_KWORLD_A340 },
+	{ USB_DEVICE(0x1b80, 0xe346),
+			.driver_info = EM2874_BOARD_KWORLD_UB435Q_V2 },
 	{ USB_DEVICE(0x2013, 0x024f),
 			.driver_info = EM28174_BOARD_PCTV_290E },
 	{ USB_DEVICE(0x2013, 0x024c),
diff --git a/drivers/media/usb/em28xx/em28xx-dvb.c b/drivers/media/usb/em28xx/em28xx-dvb.c
index ee8a6c68162e..344042bb845c 100644
--- a/drivers/media/usb/em28xx/em28xx-dvb.c
+++ b/drivers/media/usb/em28xx/em28xx-dvb.c
@@ -298,6 +298,18 @@ static struct lgdt3305_config em2870_lgdt3304_dev = {
 	.qam_if_khz         = 4000,
 };
 
+static struct lgdt3305_config em2874_lgdt3305_dev = {
+	.i2c_addr           = 0x0e,
+	.demod_chip         = LGDT3305,
+	.spectral_inversion = 1,
+	.deny_i2c_rptr      = 0,
+	.mpeg_mode          = LGDT3305_MPEG_SERIAL,
+	.tpclk_edge         = LGDT3305_TPCLK_FALLING_EDGE,
+	.tpvalid_polarity   = LGDT3305_TP_VALID_HIGH,
+	.vsb_if_khz         = 3250,
+	.qam_if_khz         = 4000,
+};
+
 static struct s921_config sharp_isdbt = {
 	.demod_address = 0x30 >> 1
 };
@@ -329,6 +341,11 @@ static struct tda18271_config kworld_a340_config = {
 	.std_map           = &kworld_a340_std_map,
 };
 
+static struct tda18271_config kworld_ub435q_v2_config = {
+	.std_map	= &kworld_a340_std_map,
+	.gate		= TDA18271_GATE_DIGITAL,
+};
+
 static struct zl10353_config em28xx_zl10353_xc3028_no_i2c_gate = {
 	.demod_address = (0x1e >> 1),
 	.no_tuner = 1,
@@ -1296,6 +1313,23 @@ static int em28xx_dvb_init(struct em28xx *dev)
 			goto out_free;
 		}
 		break;
+	case EM2874_BOARD_KWORLD_UB435Q_V2:
+		dvb->fe[0] = dvb_attach(lgdt3305_attach,
+					&em2874_lgdt3305_dev,
+					&dev->i2c_adap[dev->def_i2c_bus]);
+		if (!dvb->fe[0]) {
+			result = -EINVAL;
+			goto out_free;
+		}
+
+		/* Attach the demodulator. */
+		if (!dvb_attach(tda18271_attach, dvb->fe[0], 0x60,
+				&dev->i2c_adap[dev->def_i2c_bus],
+				&kworld_ub435q_v2_config)) {
+			result = -EINVAL;
+			goto out_free;
+		}
+		break;
 	default:
 		em28xx_errdev("/2: The frontend of your DVB/ATSC card"
 				" isn't supported yet\n");
diff --git a/drivers/media/usb/em28xx/em28xx.h b/drivers/media/usb/em28xx/em28xx.h
index c9ebe19d064c..f8726ad5d0a8 100644
--- a/drivers/media/usb/em28xx/em28xx.h
+++ b/drivers/media/usb/em28xx/em28xx.h
@@ -131,6 +131,7 @@
 #define EM2884_BOARD_TERRATEC_HTC_USB_XS	  87
 #define EM2884_BOARD_C3TECH_DIGITAL_DUO		  88
 #define EM2874_BOARD_DELOCK_61959		  89
+#define EM2874_BOARD_KWORLD_UB435Q_V2		  90
 
 /* Limits minimum and default number of buffers */
 #define EM28XX_MIN_BUF 4
-- 
cgit 


From 4f7c09b9dbf972331822bd31473df954554a9d6b Mon Sep 17 00:00:00 2001
From: Russell King - ARM Linux <linux@arm.linux.org.uk>
Date: Sun, 13 Oct 2013 07:13:33 -0300
Subject: [media] media/i2c: ths8200: fix build failure with gcc 4.5.4

v3.12-rc fails to build with this error:
drivers/media/i2c/ths8200.c:49:2: error: unknown field 'bt' specified in initializer
drivers/media/i2c/ths8200.c:50:3: error: field name not in record or union initializer
drivers/media/i2c/ths8200.c:50:3: error: (near initialization for 'ths8200_timings_cap.reserved')
drivers/media/i2c/ths8200.c:51:3: error: field name not in record or union initializer
drivers/media/i2c/ths8200.c:51:3: error: (near initialization for 'ths8200_timings_cap.reserved')
...
with gcc 4.5.4.  This error was not detected in builds prior to v3.12-rc.
This patch fixes this.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: stable@vger.kernel.org # For kernel v3.12
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/i2c/ths8200.c | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/drivers/media/i2c/ths8200.c b/drivers/media/i2c/ths8200.c
index a58a8f663ffb..5ae2a4f16a52 100644
--- a/drivers/media/i2c/ths8200.c
+++ b/drivers/media/i2c/ths8200.c
@@ -46,13 +46,17 @@ struct ths8200_state {
 
 static const struct v4l2_dv_timings_cap ths8200_timings_cap = {
 	.type = V4L2_DV_BT_656_1120,
-	.bt = {
-		.max_width = 1920,
-		.max_height = 1080,
-		.min_pixelclock = 25000000,
-		.max_pixelclock = 148500000,
-		.standards = V4L2_DV_BT_STD_CEA861,
-		.capabilities = V4L2_DV_BT_CAP_PROGRESSIVE,
+	/* Allow gcc 4.5.4 to build this */
+	.reserved = { },
+	{
+		.bt = {
+			.max_width = 1920,
+			.max_height = 1080,
+			.min_pixelclock = 25000000,
+			.max_pixelclock = 148500000,
+			.standards = V4L2_DV_BT_STD_CEA861,
+			.capabilities = V4L2_DV_BT_CAP_PROGRESSIVE,
+		},
 	},
 };
 
-- 
cgit 


From c2e609599a57926f20b324d05b164aabe9e372ed Mon Sep 17 00:00:00 2001
From: "Geyslan G. Bem" <geyslan@gmail.com>
Date: Wed, 16 Oct 2013 16:52:14 -0700
Subject: Input: cypress_ps2 - remove useless cast

Get rid of unnecessary (void *) casting in 'cypress_init' function.

Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/mouse/cypress_ps2.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/input/mouse/cypress_ps2.c b/drivers/input/mouse/cypress_ps2.c
index ef651ccf130f..1d81a7467501 100644
--- a/drivers/input/mouse/cypress_ps2.c
+++ b/drivers/input/mouse/cypress_ps2.c
@@ -680,14 +680,14 @@ int cypress_init(struct psmouse *psmouse)
 	struct cytp_data *cytp;
 
 	cytp = kzalloc(sizeof(struct cytp_data), GFP_KERNEL);
-	psmouse->private = (void *)cytp;
-	if (cytp == NULL)
+	if (!cytp)
 		return -ENOMEM;
 
-	cypress_reset(psmouse);
-
+	psmouse->private = cytp;
 	psmouse->pktsize = 8;
 
+	cypress_reset(psmouse);
+
 	if (cypress_query_hardware(psmouse)) {
 		psmouse_err(psmouse, "Unable to query Trackpad hardware.\n");
 		goto err_exit;
-- 
cgit 


From 7315b93338e87e03f71709dc1c1fcffb5272d23f Mon Sep 17 00:00:00 2001
From: Antti Palosaari <crope@iki.fi>
Date: Wed, 30 Oct 2013 00:17:02 -0300
Subject: [media] r820t: add support for R828D

Small changes in order to support tuner version R828D @ 16 MHz clock.
There was 'vco_fine_tune' check, which seems to adjust synthesizer
output divider (mixer dix / LO div / Rout) by one. R828D seems to
return vco_fine_tune=1 every time and that condition causes tuning
fail as output divider was increased by one.
Resolve problem by skipping whole condition in case of R828D tuner.
Just to mention, other tuner, R820T, seems to return 2 here.
Synthesizer maximum frequency check was hard coded to check synthesizer N
and thus worked correctly only for clock frequencies around 30 MHz.
As whole test is quite useless in any case, I removed it totally.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/tuners/r820t.c | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/drivers/media/tuners/r820t.c b/drivers/media/tuners/r820t.c
index 1c23666468cf..d9ee43fae62d 100644
--- a/drivers/media/tuners/r820t.c
+++ b/drivers/media/tuners/r820t.c
@@ -612,10 +612,19 @@ static int r820t_set_pll(struct r820t_priv *priv, enum v4l2_tuner_type type,
 
 	vco_fine_tune = (data[4] & 0x30) >> 4;
 
-	if (vco_fine_tune > VCO_POWER_REF)
-		div_num = div_num - 1;
-	else if (vco_fine_tune < VCO_POWER_REF)
-		div_num = div_num + 1;
+	tuner_dbg("mix_div=%d div_num=%d vco_fine_tune=%d\n",
+			mix_div, div_num, vco_fine_tune);
+
+	/*
+	 * XXX: R828D/16MHz seems to have always vco_fine_tune=1.
+	 * Due to that, this calculation goes wrong.
+	 */
+	if (priv->cfg->rafael_chip != CHIP_R828D) {
+		if (vco_fine_tune > VCO_POWER_REF)
+			div_num = div_num - 1;
+		else if (vco_fine_tune < VCO_POWER_REF)
+			div_num = div_num + 1;
+	}
 
 	rc = r820t_write_reg_mask(priv, 0x10, div_num << 5, 0xe0);
 	if (rc < 0)
@@ -637,11 +646,6 @@ static int r820t_set_pll(struct r820t_priv *priv, enum v4l2_tuner_type type,
 		vco_fra = pll_ref * 129 / 128;
 	}
 
-	if (nint > 63) {
-		tuner_info("No valid PLL values for %u kHz!\n", freq);
-		return -EINVAL;
-	}
-
 	ni = (nint - 13) / 4;
 	si = nint - 4 * ni - 13;
 
-- 
cgit 


From a26758edff8e65b598213112521fe411ac2933ae Mon Sep 17 00:00:00 2001
From: Antti Palosaari <crope@iki.fi>
Date: Wed, 30 Oct 2013 00:36:38 -0300
Subject: [media] rtl2832: add new tuner R828D

Use R820T config for R828D too as those are about same tuner.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/dvb-frontends/rtl2832.c | 1 +
 drivers/media/dvb-frontends/rtl2832.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/media/dvb-frontends/rtl2832.c b/drivers/media/dvb-frontends/rtl2832.c
index facb84841518..a95dfe0a5ce3 100644
--- a/drivers/media/dvb-frontends/rtl2832.c
+++ b/drivers/media/dvb-frontends/rtl2832.c
@@ -489,6 +489,7 @@ static int rtl2832_init(struct dvb_frontend *fe)
 		init = rtl2832_tuner_init_e4000;
 		break;
 	case RTL2832_TUNER_R820T:
+	case RTL2832_TUNER_R828D:
 		len = ARRAY_SIZE(rtl2832_tuner_init_r820t);
 		init = rtl2832_tuner_init_r820t;
 		break;
diff --git a/drivers/media/dvb-frontends/rtl2832.h b/drivers/media/dvb-frontends/rtl2832.h
index 91b2dcf5a6ea..2cfbb6a97061 100644
--- a/drivers/media/dvb-frontends/rtl2832.h
+++ b/drivers/media/dvb-frontends/rtl2832.h
@@ -53,6 +53,7 @@ struct rtl2832_config {
 #define RTL2832_TUNER_E4000     0x27
 #define RTL2832_TUNER_FC0013    0x29
 #define RTL2832_TUNER_R820T	0x2a
+#define RTL2832_TUNER_R828D	0x2b
 	u8 tuner;
 };
 
-- 
cgit 


From 8b4cac1a12708c9e1f34f256b62706fef7ad2295 Mon Sep 17 00:00:00 2001
From: Antti Palosaari <crope@iki.fi>
Date: Wed, 30 Oct 2013 00:45:38 -0300
Subject: [media] rtl28xxu: add RTL2832P + R828D support

RTL2832P is version of RTL2832U with extra TS interface.
As for now, we support only integrated RTL2832 demod.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/dvb-usb-v2/rtl28xxu.c | 39 +++++++++++++++++++++++++++++++++
 drivers/media/usb/dvb-usb-v2/rtl28xxu.h |  1 +
 2 files changed, 40 insertions(+)

diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
index c0cd0848631b..8c600b70d20e 100644
--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
+++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
@@ -377,6 +377,7 @@ static int rtl2832u_read_config(struct dvb_usb_device *d)
 	struct rtl28xxu_req req_e4000 = {0x02c8, CMD_I2C_RD, 1, buf};
 	struct rtl28xxu_req req_tda18272 = {0x00c0, CMD_I2C_RD, 2, buf};
 	struct rtl28xxu_req req_r820t = {0x0034, CMD_I2C_RD, 1, buf};
+	struct rtl28xxu_req req_r828d = {0x0074, CMD_I2C_RD, 1, buf};
 
 	dev_dbg(&d->udev->dev, "%s:\n", __func__);
 
@@ -489,6 +490,15 @@ static int rtl2832u_read_config(struct dvb_usb_device *d)
 		goto found;
 	}
 
+	/* check R828D ID register; reg=00 val=69 */
+	ret = rtl28xxu_ctrl_msg(d, &req_r828d);
+	if (ret == 0 && buf[0] == 0x69) {
+		priv->tuner = TUNER_RTL2832_R828D;
+		priv->tuner_name = "R828D";
+		goto found;
+	}
+
+
 found:
 	dev_dbg(&d->udev->dev, "%s: tuner=%s\n", __func__, priv->tuner_name);
 
@@ -745,6 +755,7 @@ static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap)
 		rtl2832_config = &rtl28xxu_rtl2832_e4000_config;
 		break;
 	case TUNER_RTL2832_R820T:
+	case TUNER_RTL2832_R828D:
 		rtl2832_config = &rtl28xxu_rtl2832_r820t_config;
 		break;
 	default:
@@ -866,6 +877,13 @@ static const struct r820t_config rtl2832u_r820t_config = {
 	.rafael_chip = CHIP_R820T,
 };
 
+static const struct r820t_config rtl2832u_r828d_config = {
+	.i2c_addr = 0x3a,
+	.xtal = 16000000,
+	.max_i2c_msg_len = 2,
+	.rafael_chip = CHIP_R828D,
+};
+
 static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
 {
 	int ret;
@@ -919,6 +937,27 @@ static int rtl2832u_tuner_attach(struct dvb_usb_adapter *adap)
 		fe = dvb_attach(r820t_attach, adap->fe[0], &d->i2c_adap,
 				&rtl2832u_r820t_config);
 
+		/* Use tuner to get the signal strength */
+		adap->fe[0]->ops.read_signal_strength =
+				adap->fe[0]->ops.tuner_ops.get_rf_strength;
+		break;
+	case TUNER_RTL2832_R828D:
+		/* power off mn88472 demod on GPIO0 */
+		ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_VAL, 0x00, 0x01);
+		if (ret)
+			goto err;
+
+		ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_DIR, 0x00, 0x01);
+		if (ret)
+			goto err;
+
+		ret = rtl28xx_wr_reg_mask(d, SYS_GPIO_OUT_EN, 0x01, 0x01);
+		if (ret)
+			goto err;
+
+		fe = dvb_attach(r820t_attach, adap->fe[0], &d->i2c_adap,
+				&rtl2832u_r828d_config);
+
 		/* Use tuner to get the signal strength */
 		adap->fe[0]->ops.read_signal_strength =
 				adap->fe[0]->ops.tuner_ops.get_rf_strength;
diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.h b/drivers/media/usb/dvb-usb-v2/rtl28xxu.h
index 729b3540c2f9..2142bcb41b41 100644
--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.h
+++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.h
@@ -83,6 +83,7 @@ enum rtl28xxu_tuner {
 	TUNER_RTL2832_TDA18272,
 	TUNER_RTL2832_FC0013,
 	TUNER_RTL2832_R820T,
+	TUNER_RTL2832_R828D,
 };
 
 struct rtl28xxu_req {
-- 
cgit 


From 8fdd33b1bcf32ed9cf21aa9e4a66fa68c6beaa1b Mon Sep 17 00:00:00 2001
From: Antti Palosaari <crope@iki.fi>
Date: Wed, 30 Oct 2013 02:33:42 -0300
Subject: [media] rtl28xxu: add 15f4:0131 Astrometa DVB-T2

Components are RTL2832P + R828D + MN88472.
Currently support only DVB-T as there is no driver for MN88472 demod.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/dvb-usb-v2/rtl28xxu.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
index 8c600b70d20e..ecca03667f98 100644
--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
+++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
@@ -1427,6 +1427,9 @@ static const struct usb_device_id rtl28xxu_id_table[] = {
 		&rtl2832u_props, "Leadtek WinFast DTV Dongle mini", NULL) },
 	{ DVB_USB_DEVICE(USB_VID_GTEK, USB_PID_CPYTO_REDI_PC50A,
 		&rtl2832u_props, "Crypto ReDi PC 50 A", NULL) },
+
+	{ DVB_USB_DEVICE(USB_VID_HANFTEK, 0x0131,
+		&rtl2832u_props, "Astrometa DVB-T2", NULL) },
 	{ }
 };
 MODULE_DEVICE_TABLE(usb, rtl28xxu_id_table);
-- 
cgit 


From 7f6b11a18c30743a7099d6e3110e45bd1b2cf54c Mon Sep 17 00:00:00 2001
From: Daniel Jeong <gshark.jeong@gmail.com>
Date: Wed, 16 Oct 2013 04:12:19 -0300
Subject: [media] media: i2c: add driver for dual LED Flash, lm3560

Adds the driver for the LM3560, dual LED Flash The LM3560 has two 1A
constant current driver for high current white LEDs.

It is controlled via an I2C compatible interface(up to 400kHz).

Each flash brightness, torch  brightness and enable/disable can be
controlled independantly, but flash timeout and operation mode are shared.

Signed-off-by: Daniel Jeong <gshark.jeong@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/i2c/Kconfig  |   9 +
 drivers/media/i2c/Makefile |   1 +
 drivers/media/i2c/lm3560.c | 488 +++++++++++++++++++++++++++++++++++++++++++++
 include/media/lm3560.h     |  97 +++++++++
 4 files changed, 595 insertions(+)
 create mode 100644 drivers/media/i2c/lm3560.c
 create mode 100644 include/media/lm3560.h

diff --git a/drivers/media/i2c/Kconfig b/drivers/media/i2c/Kconfig
index d18be19c96cd..75c8a035539a 100644
--- a/drivers/media/i2c/Kconfig
+++ b/drivers/media/i2c/Kconfig
@@ -621,6 +621,15 @@ config VIDEO_AS3645A
 	  This is a driver for the AS3645A and LM3555 flash controllers. It has
 	  build in control for flash, torch and indicator LEDs.
 
+config VIDEO_LM3560
+	tristate "LM3560 dual flash driver support"
+	depends on I2C && VIDEO_V4L2 && MEDIA_CONTROLLER
+	depends on MEDIA_CAMERA_SUPPORT
+	select REGMAP_I2C
+	---help---
+	  This is a driver for the lm3560 dual flash controllers. It controls
+	  flash, torch LEDs.
+
 comment "Video improvement chips"
 
 config VIDEO_UPD64031A
diff --git a/drivers/media/i2c/Makefile b/drivers/media/i2c/Makefile
index 9f462df77b4a..e03f1776f4f4 100644
--- a/drivers/media/i2c/Makefile
+++ b/drivers/media/i2c/Makefile
@@ -70,6 +70,7 @@ obj-$(CONFIG_VIDEO_S5K4ECGX)	+= s5k4ecgx.o
 obj-$(CONFIG_VIDEO_S5C73M3)	+= s5c73m3/
 obj-$(CONFIG_VIDEO_ADP1653)	+= adp1653.o
 obj-$(CONFIG_VIDEO_AS3645A)	+= as3645a.o
+obj-$(CONFIG_VIDEO_LM3560)	+= lm3560.o
 obj-$(CONFIG_VIDEO_SMIAPP_PLL)	+= smiapp-pll.o
 obj-$(CONFIG_VIDEO_AK881X)		+= ak881x.o
 obj-$(CONFIG_VIDEO_IR_I2C)  += ir-kbd-i2c.o
diff --git a/drivers/media/i2c/lm3560.c b/drivers/media/i2c/lm3560.c
new file mode 100644
index 000000000000..3317a9ae3961
--- /dev/null
+++ b/drivers/media/i2c/lm3560.c
@@ -0,0 +1,488 @@
+/*
+ * drivers/media/i2c/lm3560.c
+ * General device driver for TI lm3560, FLASH LED Driver
+ *
+ * Copyright (C) 2013 Texas Instruments
+ *
+ * Contact: Daniel Jeong <gshark.jeong@gmail.com>
+ *			Ldd-Mlp <ldd-mlp@list.ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/mutex.h>
+#include <linux/regmap.h>
+#include <linux/videodev2.h>
+#include <media/lm3560.h>
+#include <media/v4l2-ctrls.h>
+#include <media/v4l2-device.h>
+
+/* registers definitions */
+#define REG_ENABLE		0x10
+#define REG_TORCH_BR	0xa0
+#define REG_FLASH_BR	0xb0
+#define REG_FLASH_TOUT	0xc0
+#define REG_FLAG		0xd0
+#define REG_CONFIG1		0xe0
+
+/* Fault Mask */
+#define FAULT_TIMEOUT	(1<<0)
+#define FAULT_OVERTEMP	(1<<1)
+#define FAULT_SHORT_CIRCUIT	(1<<2)
+
+enum led_enable {
+	MODE_SHDN = 0x0,
+	MODE_TORCH = 0x2,
+	MODE_FLASH = 0x3,
+};
+
+/* struct lm3560_flash
+ *
+ * @pdata: platform data
+ * @regmap: reg. map for i2c
+ * @lock: muxtex for serial access.
+ * @led_mode: V4L2 LED mode
+ * @ctrls_led: V4L2 contols
+ * @subdev_led: V4L2 subdev
+ */
+struct lm3560_flash {
+	struct device *dev;
+	struct lm3560_platform_data *pdata;
+	struct regmap *regmap;
+	struct mutex lock;
+
+	enum v4l2_flash_led_mode led_mode;
+	struct v4l2_ctrl_handler ctrls_led[LM3560_LED_MAX];
+	struct v4l2_subdev subdev_led[LM3560_LED_MAX];
+};
+
+#define to_lm3560_flash(_ctrl, _no)	\
+	container_of(_ctrl->handler, struct lm3560_flash, ctrls_led[_no])
+
+/* enable mode control */
+static int lm3560_mode_ctrl(struct lm3560_flash *flash)
+{
+	int rval = -EINVAL;
+
+	switch (flash->led_mode) {
+	case V4L2_FLASH_LED_MODE_NONE:
+		rval = regmap_update_bits(flash->regmap,
+					  REG_ENABLE, 0x03, MODE_SHDN);
+		break;
+	case V4L2_FLASH_LED_MODE_TORCH:
+		rval = regmap_update_bits(flash->regmap,
+					  REG_ENABLE, 0x03, MODE_TORCH);
+		break;
+	case V4L2_FLASH_LED_MODE_FLASH:
+		rval = regmap_update_bits(flash->regmap,
+					  REG_ENABLE, 0x03, MODE_FLASH);
+		break;
+	}
+	return rval;
+}
+
+/* led1/2  enable/disable */
+static int lm3560_enable_ctrl(struct lm3560_flash *flash,
+			      enum lm3560_led_id led_no, bool on)
+{
+	int rval;
+
+	if (led_no == LM3560_LED0) {
+		if (on == true)
+			rval = regmap_update_bits(flash->regmap,
+						  REG_ENABLE, 0x08, 0x08);
+		else
+			rval = regmap_update_bits(flash->regmap,
+						  REG_ENABLE, 0x08, 0x00);
+	} else {
+		if (on == true)
+			rval = regmap_update_bits(flash->regmap,
+						  REG_ENABLE, 0x10, 0x10);
+		else
+			rval = regmap_update_bits(flash->regmap,
+						  REG_ENABLE, 0x10, 0x00);
+	}
+	return rval;
+}
+
+/* torch1/2 brightness control */
+static int lm3560_torch_brt_ctrl(struct lm3560_flash *flash,
+				 enum lm3560_led_id led_no, unsigned int brt)
+{
+	int rval;
+	u8 br_bits;
+
+	if (brt < LM3560_TORCH_BRT_MIN)
+		return lm3560_enable_ctrl(flash, led_no, false);
+	else
+		rval = lm3560_enable_ctrl(flash, led_no, true);
+
+	br_bits = LM3560_TORCH_BRT_uA_TO_REG(brt);
+	if (led_no == LM3560_LED0)
+		rval = regmap_update_bits(flash->regmap,
+					  REG_TORCH_BR, 0x07, br_bits);
+	else
+		rval = regmap_update_bits(flash->regmap,
+					  REG_TORCH_BR, 0x38, br_bits << 3);
+
+	return rval;
+}
+
+/* flash1/2 brightness control */
+static int lm3560_flash_brt_ctrl(struct lm3560_flash *flash,
+				 enum lm3560_led_id led_no, unsigned int brt)
+{
+	int rval;
+	u8 br_bits;
+
+	if (brt < LM3560_FLASH_BRT_MIN)
+		return lm3560_enable_ctrl(flash, led_no, false);
+	else
+		rval = lm3560_enable_ctrl(flash, led_no, true);
+
+	br_bits = LM3560_FLASH_BRT_uA_TO_REG(brt);
+	if (led_no == LM3560_LED0)
+		rval = regmap_update_bits(flash->regmap,
+					  REG_FLASH_BR, 0x0f, br_bits);
+	else
+		rval = regmap_update_bits(flash->regmap,
+					  REG_FLASH_BR, 0xf0, br_bits << 4);
+
+	return rval;
+}
+
+/* V4L2 controls  */
+static int lm3560_get_ctrl(struct v4l2_ctrl *ctrl, enum lm3560_led_id led_no)
+{
+	struct lm3560_flash *flash = to_lm3560_flash(ctrl, led_no);
+
+	mutex_lock(&flash->lock);
+
+	if (ctrl->id == V4L2_CID_FLASH_FAULT) {
+		int rval;
+		s32 fault = 0;
+		unsigned int reg_val;
+		rval = regmap_read(flash->regmap, REG_FLAG, &reg_val);
+		if (rval < 0)
+			return rval;
+		if (rval & FAULT_SHORT_CIRCUIT)
+			fault |= V4L2_FLASH_FAULT_SHORT_CIRCUIT;
+		if (rval & FAULT_OVERTEMP)
+			fault |= V4L2_FLASH_FAULT_OVER_TEMPERATURE;
+		if (rval & FAULT_TIMEOUT)
+			fault |= V4L2_FLASH_FAULT_TIMEOUT;
+		ctrl->cur.val = fault;
+		return 0;
+	}
+
+	mutex_unlock(&flash->lock);
+	return -EINVAL;
+}
+
+static int lm3560_set_ctrl(struct v4l2_ctrl *ctrl, enum lm3560_led_id led_no)
+{
+	struct lm3560_flash *flash = to_lm3560_flash(ctrl, led_no);
+	u8 tout_bits;
+	int rval = -EINVAL;
+
+	mutex_lock(&flash->lock);
+
+	switch (ctrl->id) {
+	case V4L2_CID_FLASH_LED_MODE:
+		flash->led_mode = ctrl->val;
+		if (flash->led_mode != V4L2_FLASH_LED_MODE_FLASH)
+			rval = lm3560_mode_ctrl(flash);
+		break;
+
+	case V4L2_CID_FLASH_STROBE_SOURCE:
+		rval = regmap_update_bits(flash->regmap,
+					  REG_CONFIG1, 0x04, (ctrl->val) << 2);
+		if (rval < 0)
+			goto err_out;
+		break;
+
+	case V4L2_CID_FLASH_STROBE:
+		if (flash->led_mode != V4L2_FLASH_LED_MODE_FLASH)
+			return -EBUSY;
+		flash->led_mode = V4L2_FLASH_LED_MODE_FLASH;
+		rval = lm3560_mode_ctrl(flash);
+		break;
+
+	case V4L2_CID_FLASH_STROBE_STOP:
+		if (flash->led_mode != V4L2_FLASH_LED_MODE_FLASH)
+			return -EBUSY;
+		flash->led_mode = V4L2_FLASH_LED_MODE_NONE;
+		rval = lm3560_mode_ctrl(flash);
+		break;
+
+	case V4L2_CID_FLASH_TIMEOUT:
+		tout_bits = LM3560_FLASH_TOUT_ms_TO_REG(ctrl->val);
+		rval = regmap_update_bits(flash->regmap,
+					  REG_FLASH_TOUT, 0x1f, tout_bits);
+		break;
+
+	case V4L2_CID_FLASH_INTENSITY:
+		rval = lm3560_flash_brt_ctrl(flash, led_no, ctrl->val);
+		break;
+
+	case V4L2_CID_FLASH_TORCH_INTENSITY:
+		rval = lm3560_torch_brt_ctrl(flash, led_no, ctrl->val);
+		break;
+	}
+
+	mutex_unlock(&flash->lock);
+err_out:
+	return rval;
+}
+
+static int lm3560_led1_get_ctrl(struct v4l2_ctrl *ctrl)
+{
+	return lm3560_get_ctrl(ctrl, LM3560_LED1);
+}
+
+static int lm3560_led1_set_ctrl(struct v4l2_ctrl *ctrl)
+{
+	return lm3560_set_ctrl(ctrl, LM3560_LED1);
+}
+
+static int lm3560_led0_get_ctrl(struct v4l2_ctrl *ctrl)
+{
+	return lm3560_get_ctrl(ctrl, LM3560_LED0);
+}
+
+static int lm3560_led0_set_ctrl(struct v4l2_ctrl *ctrl)
+{
+	return lm3560_set_ctrl(ctrl, LM3560_LED0);
+}
+
+static const struct v4l2_ctrl_ops lm3560_led_ctrl_ops[LM3560_LED_MAX] = {
+	[LM3560_LED0] = {
+			 .g_volatile_ctrl = lm3560_led0_get_ctrl,
+			 .s_ctrl = lm3560_led0_set_ctrl,
+			 },
+	[LM3560_LED1] = {
+			 .g_volatile_ctrl = lm3560_led1_get_ctrl,
+			 .s_ctrl = lm3560_led1_set_ctrl,
+			 }
+};
+
+static int lm3560_init_controls(struct lm3560_flash *flash,
+				enum lm3560_led_id led_no)
+{
+	struct v4l2_ctrl *fault;
+	u32 max_flash_brt = flash->pdata->max_flash_brt[led_no];
+	u32 max_torch_brt = flash->pdata->max_torch_brt[led_no];
+	struct v4l2_ctrl_handler *hdl = &flash->ctrls_led[led_no];
+	const struct v4l2_ctrl_ops *ops = &lm3560_led_ctrl_ops[led_no];
+
+	v4l2_ctrl_handler_init(hdl, 8);
+	/* flash mode */
+	v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_FLASH_LED_MODE,
+			       V4L2_FLASH_LED_MODE_TORCH, ~0x7,
+			       V4L2_FLASH_LED_MODE_NONE);
+	flash->led_mode = V4L2_FLASH_LED_MODE_NONE;
+
+	/* flash source */
+	v4l2_ctrl_new_std_menu(hdl, ops, V4L2_CID_FLASH_STROBE_SOURCE,
+			       0x1, ~0x3, V4L2_FLASH_STROBE_SOURCE_SOFTWARE);
+
+	/* flash strobe */
+	v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FLASH_STROBE, 0, 0, 0, 0);
+	/* flash strobe stop */
+	v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FLASH_STROBE_STOP, 0, 0, 0, 0);
+
+	/* flash strobe timeout */
+	v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FLASH_TIMEOUT,
+			  LM3560_FLASH_TOUT_MIN,
+			  flash->pdata->max_flash_timeout,
+			  LM3560_FLASH_TOUT_STEP,
+			  flash->pdata->max_flash_timeout);
+
+	/* flash brt */
+	v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FLASH_INTENSITY,
+			  LM3560_FLASH_BRT_MIN, max_flash_brt,
+			  LM3560_FLASH_BRT_STEP, max_flash_brt);
+
+	/* torch brt */
+	v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FLASH_TORCH_INTENSITY,
+			  LM3560_TORCH_BRT_MIN, max_torch_brt,
+			  LM3560_TORCH_BRT_STEP, max_torch_brt);
+
+	/* fault */
+	fault = v4l2_ctrl_new_std(hdl, ops, V4L2_CID_FLASH_FAULT, 0,
+				  V4L2_FLASH_FAULT_OVER_VOLTAGE
+				  | V4L2_FLASH_FAULT_OVER_TEMPERATURE
+				  | V4L2_FLASH_FAULT_SHORT_CIRCUIT
+				  | V4L2_FLASH_FAULT_TIMEOUT, 0, 0);
+	if (fault != NULL)
+		fault->flags |= V4L2_CTRL_FLAG_VOLATILE;
+
+	if (hdl->error)
+		return hdl->error;
+
+	flash->subdev_led[led_no].ctrl_handler = hdl;
+	return 0;
+}
+
+/* initialize device */
+static const struct v4l2_subdev_ops lm3560_ops = {
+	.core = NULL,
+};
+
+static const struct regmap_config lm3560_regmap = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = 0xFF,
+};
+
+static int lm3560_subdev_init(struct lm3560_flash *flash,
+			      enum lm3560_led_id led_no, char *led_name)
+{
+	struct i2c_client *client = to_i2c_client(flash->dev);
+	int rval;
+
+	v4l2_i2c_subdev_init(&flash->subdev_led[led_no], client, &lm3560_ops);
+	flash->subdev_led[led_no].flags |= V4L2_SUBDEV_FL_HAS_DEVNODE;
+	strcpy(flash->subdev_led[led_no].name, led_name);
+	rval = lm3560_init_controls(flash, led_no);
+	if (rval)
+		goto err_out;
+	rval = media_entity_init(&flash->subdev_led[led_no].entity, 0, NULL, 0);
+	if (rval < 0)
+		goto err_out;
+	flash->subdev_led[led_no].entity.type = MEDIA_ENT_T_V4L2_SUBDEV_FLASH;
+
+	return rval;
+
+err_out:
+	v4l2_ctrl_handler_free(&flash->ctrls_led[led_no]);
+	return rval;
+}
+
+static int lm3560_init_device(struct lm3560_flash *flash)
+{
+	int rval;
+	unsigned int reg_val;
+
+	/* set peak current */
+	rval = regmap_update_bits(flash->regmap,
+				  REG_FLASH_TOUT, 0x60, flash->pdata->peak);
+	if (rval < 0)
+		return rval;
+	/* output disable */
+	flash->led_mode = V4L2_FLASH_LED_MODE_NONE;
+	rval = lm3560_mode_ctrl(flash);
+	if (rval < 0)
+		return rval;
+	/* Reset faults */
+	rval = regmap_read(flash->regmap, REG_FLAG, &reg_val);
+	return rval;
+}
+
+static int lm3560_probe(struct i2c_client *client,
+			const struct i2c_device_id *devid)
+{
+	struct lm3560_flash *flash;
+	struct lm3560_platform_data *pdata = dev_get_platdata(&client->dev);
+	int rval;
+
+	flash = devm_kzalloc(&client->dev, sizeof(*flash), GFP_KERNEL);
+	if (flash == NULL)
+		return -ENOMEM;
+
+	flash->regmap = devm_regmap_init_i2c(client, &lm3560_regmap);
+	if (IS_ERR(flash->regmap)) {
+		rval = PTR_ERR(flash->regmap);
+		return rval;
+	}
+
+	/* if there is no platform data, use chip default value */
+	if (pdata == NULL) {
+		pdata =
+		    kzalloc(sizeof(struct lm3560_platform_data), GFP_KERNEL);
+		if (pdata == NULL)
+			return -ENODEV;
+		pdata->peak = LM3560_PEAK_3600mA;
+		pdata->max_flash_timeout = LM3560_FLASH_TOUT_MAX;
+		/* led 1 */
+		pdata->max_flash_brt[LM3560_LED0] = LM3560_FLASH_BRT_MAX;
+		pdata->max_torch_brt[LM3560_LED0] = LM3560_TORCH_BRT_MAX;
+		/* led 2 */
+		pdata->max_flash_brt[LM3560_LED1] = LM3560_FLASH_BRT_MAX;
+		pdata->max_torch_brt[LM3560_LED1] = LM3560_TORCH_BRT_MAX;
+	}
+	flash->pdata = pdata;
+	flash->dev = &client->dev;
+	mutex_init(&flash->lock);
+
+	rval = lm3560_subdev_init(flash, LM3560_LED0, "lm3560-led0");
+	if (rval < 0)
+		return rval;
+
+	rval = lm3560_subdev_init(flash, LM3560_LED1, "lm3560-led1");
+	if (rval < 0)
+		return rval;
+
+	rval = lm3560_init_device(flash);
+	if (rval < 0)
+		return rval;
+
+	return 0;
+}
+
+static int lm3560_remove(struct i2c_client *client)
+{
+	struct v4l2_subdev *subdev = i2c_get_clientdata(client);
+	struct lm3560_flash *flash = container_of(subdev, struct lm3560_flash,
+						  subdev_led[LM3560_LED_MAX]);
+	unsigned int i;
+
+	for (i = LM3560_LED0; i < LM3560_LED_MAX; i++) {
+		v4l2_device_unregister_subdev(&flash->subdev_led[i]);
+		v4l2_ctrl_handler_free(&flash->ctrls_led[i]);
+		media_entity_cleanup(&flash->subdev_led[i].entity);
+	}
+
+	return 0;
+}
+
+static const struct i2c_device_id lm3560_id_table[] = {
+	{LM3560_NAME, 0},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, lm3560_id_table);
+
+static struct i2c_driver lm3560_i2c_driver = {
+	.driver = {
+		   .name = LM3560_NAME,
+		   .pm = NULL,
+		   },
+	.probe = lm3560_probe,
+	.remove = lm3560_remove,
+	.id_table = lm3560_id_table,
+};
+
+module_i2c_driver(lm3560_i2c_driver);
+
+MODULE_AUTHOR("Daniel Jeong <gshark.jeong@gmail.com>");
+MODULE_AUTHOR("Ldd Mlp <ldd-mlp@list.ti.com>");
+MODULE_DESCRIPTION("Texas Instruments LM3560 LED flash driver");
+MODULE_LICENSE("GPL");
diff --git a/include/media/lm3560.h b/include/media/lm3560.h
new file mode 100644
index 000000000000..46670706d6f8
--- /dev/null
+++ b/include/media/lm3560.h
@@ -0,0 +1,97 @@
+/*
+ * include/media/lm3560.h
+ *
+ * Copyright (C) 2013 Texas Instruments
+ *
+ * Contact: Daniel Jeong <gshark.jeong@gmail.com>
+ *			Ldd-Mlp <ldd-mlp@list.ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ */
+
+#ifndef __LM3560_H__
+#define __LM3560_H__
+
+#include <media/v4l2-subdev.h>
+
+#define LM3560_NAME	"lm3560"
+#define LM3560_I2C_ADDR	(0x53)
+
+/*  FLASH Brightness
+ *	min 62500uA, step 62500uA, max 1000000uA
+ */
+#define LM3560_FLASH_BRT_MIN 62500
+#define LM3560_FLASH_BRT_STEP 62500
+#define LM3560_FLASH_BRT_MAX 1000000
+#define LM3560_FLASH_BRT_uA_TO_REG(a)	\
+	((a) < LM3560_FLASH_BRT_MIN ? 0 :	\
+	 (((a) - LM3560_FLASH_BRT_MIN) / LM3560_FLASH_BRT_STEP))
+#define LM3560_FLASH_BRT_REG_TO_uA(a)		\
+	((a) * LM3560_FLASH_BRT_STEP + LM3560_FLASH_BRT_MIN)
+
+/*  FLASH TIMEOUT DURATION
+ *	min 32ms, step 32ms, max 1024ms
+ */
+#define LM3560_FLASH_TOUT_MIN 32
+#define LM3560_FLASH_TOUT_STEP 32
+#define LM3560_FLASH_TOUT_MAX 1024
+#define LM3560_FLASH_TOUT_ms_TO_REG(a)	\
+	((a) < LM3560_FLASH_TOUT_MIN ? 0 :	\
+	 (((a) - LM3560_FLASH_TOUT_MIN) / LM3560_FLASH_TOUT_STEP))
+#define LM3560_FLASH_TOUT_REG_TO_ms(a)		\
+	((a) * LM3560_FLASH_TOUT_STEP + LM3560_FLASH_TOUT_MIN)
+
+/*  TORCH BRT
+ *	min 31250uA, step 31250uA, max 250000uA
+ */
+#define LM3560_TORCH_BRT_MIN 31250
+#define LM3560_TORCH_BRT_STEP 31250
+#define LM3560_TORCH_BRT_MAX 250000
+#define LM3560_TORCH_BRT_uA_TO_REG(a)	\
+	((a) < LM3560_TORCH_BRT_MIN ? 0 :	\
+	 (((a) - LM3560_TORCH_BRT_MIN) / LM3560_TORCH_BRT_STEP))
+#define LM3560_TORCH_BRT_REG_TO_uA(a)		\
+	((a) * LM3560_TORCH_BRT_STEP + LM3560_TORCH_BRT_MIN)
+
+enum lm3560_led_id {
+	LM3560_LED0 = 0,
+	LM3560_LED1,
+	LM3560_LED_MAX
+};
+
+enum lm3560_peak_current {
+	LM3560_PEAK_1600mA = 0x00,
+	LM3560_PEAK_2300mA = 0x20,
+	LM3560_PEAK_3000mA = 0x40,
+	LM3560_PEAK_3600mA = 0x60
+};
+
+/* struct lm3560_platform_data
+ *
+ * @peak :  peak current
+ * @max_flash_timeout: flash timeout
+ * @max_flash_brt: flash mode led brightness
+ * @max_torch_brt: torch mode led brightness
+ */
+struct lm3560_platform_data {
+	enum lm3560_peak_current peak;
+
+	u32 max_flash_timeout;
+	u32 max_flash_brt[LM3560_LED_MAX];
+	u32 max_torch_brt[LM3560_LED_MAX];
+};
+
+#endif /* __LM3560_H__ */
-- 
cgit 


From 7ab64a85e1a009046f97413a573e83fd85f7804d Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Mon, 28 Oct 2013 11:17:10 +0100
Subject: s390/time: fix get_tod_clock_ext inline assembly

The get_tod_clock_ext inline assembly does not specify its output
operands correctly. This can cause incorrect code to be generated.

Cc: stable@vger.kernel.org # 3.12
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/timex.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/s390/include/asm/timex.h b/arch/s390/include/asm/timex.h
index 819b94d22720..8beee1cceba4 100644
--- a/arch/s390/include/asm/timex.h
+++ b/arch/s390/include/asm/timex.h
@@ -71,9 +71,11 @@ static inline void local_tick_enable(unsigned long long comp)
 
 typedef unsigned long long cycles_t;
 
-static inline void get_tod_clock_ext(char *clk)
+static inline void get_tod_clock_ext(char clk[16])
 {
-	asm volatile("stcke %0" : "=Q" (*clk) : : "cc");
+	typedef struct { char _[sizeof(clk)]; } addrtype;
+
+	asm volatile("stcke %0" : "=Q" (*(addrtype *) clk) : : "cc");
 }
 
 static inline unsigned long long get_tod_clock(void)
-- 
cgit 


From 4560e7c3317c7a2b370e36dadd3a3bac2ed70818 Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Mon, 28 Oct 2013 12:15:32 +0100
Subject: s390/vtime: correct idle time calculation

Use the ACCESS_ONCE macro for both accesses to idle->sequence in the
loops to calculate the idle time. If only one access uses the macro,
the compiler is free to cache the value for the second access which
can cause endless loops.

Cc: stable@vger.kernel.org # 3.6+
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/smp.c   | 4 ++--
 arch/s390/kernel/vtime.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 739313db71e5..dc4a53465060 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -920,7 +920,7 @@ static ssize_t show_idle_count(struct device *dev,
 		idle_count = ACCESS_ONCE(idle->idle_count);
 		if (ACCESS_ONCE(idle->clock_idle_enter))
 			idle_count++;
-	} while ((sequence & 1) || (idle->sequence != sequence));
+	} while ((sequence & 1) || (ACCESS_ONCE(idle->sequence) != sequence));
 	return sprintf(buf, "%llu\n", idle_count);
 }
 static DEVICE_ATTR(idle_count, 0444, show_idle_count, NULL);
@@ -938,7 +938,7 @@ static ssize_t show_idle_time(struct device *dev,
 		idle_time = ACCESS_ONCE(idle->idle_time);
 		idle_enter = ACCESS_ONCE(idle->clock_idle_enter);
 		idle_exit = ACCESS_ONCE(idle->clock_idle_exit);
-	} while ((sequence & 1) || (idle->sequence != sequence));
+	} while ((sequence & 1) || (ACCESS_ONCE(idle->sequence) != sequence));
 	idle_time += idle_enter ? ((idle_exit ? : now) - idle_enter) : 0;
 	return sprintf(buf, "%llu\n", idle_time >> 12);
 }
diff --git a/arch/s390/kernel/vtime.c b/arch/s390/kernel/vtime.c
index e312c48a1c40..8c34363d6f1e 100644
--- a/arch/s390/kernel/vtime.c
+++ b/arch/s390/kernel/vtime.c
@@ -191,7 +191,7 @@ cputime64_t s390_get_idle_time(int cpu)
 		sequence = ACCESS_ONCE(idle->sequence);
 		idle_enter = ACCESS_ONCE(idle->clock_idle_enter);
 		idle_exit = ACCESS_ONCE(idle->clock_idle_exit);
-	} while ((sequence & 1) || (idle->sequence != sequence));
+	} while ((sequence & 1) || (ACCESS_ONCE(idle->sequence) != sequence));
 	return idle_enter ? ((idle_exit ?: now) - idle_enter) : 0;
 }
 
-- 
cgit 


From b226635ab82f5f5374dd6ccc9d257b41bcc41599 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 28 Oct 2013 13:10:39 +0100
Subject: s390/percpu: remove this_cpu_xor() implementation

this_cpu_xor() will be removed tree wide during the next merge window.
To avoid merge conflicts s390's removal comes via the s390 tree.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/percpu.h | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/arch/s390/include/asm/percpu.h b/arch/s390/include/asm/percpu.h
index 061ab45faf70..fa91e0097458 100644
--- a/arch/s390/include/asm/percpu.h
+++ b/arch/s390/include/asm/percpu.h
@@ -50,8 +50,6 @@
 #define this_cpu_and_2(pcp, val)	arch_this_cpu_to_op_simple(pcp, val, &)
 #define this_cpu_or_1(pcp, val)		arch_this_cpu_to_op_simple(pcp, val, |)
 #define this_cpu_or_2(pcp, val)		arch_this_cpu_to_op_simple(pcp, val, |)
-#define this_cpu_xor_1(pcp, val)	arch_this_cpu_to_op_simple(pcp, val, ^)
-#define this_cpu_xor_2(pcp, val)	arch_this_cpu_to_op_simple(pcp, val, ^)
 
 #ifndef CONFIG_HAVE_MARCH_Z196_FEATURES
 
@@ -63,8 +61,6 @@
 #define this_cpu_and_8(pcp, val)	arch_this_cpu_to_op_simple(pcp, val, &)
 #define this_cpu_or_4(pcp, val)		arch_this_cpu_to_op_simple(pcp, val, |)
 #define this_cpu_or_8(pcp, val)		arch_this_cpu_to_op_simple(pcp, val, |)
-#define this_cpu_xor_4(pcp, val)	arch_this_cpu_to_op_simple(pcp, val, ^)
-#define this_cpu_xor_8(pcp, val)	arch_this_cpu_to_op_simple(pcp, val, ^)
 
 #else /* CONFIG_HAVE_MARCH_Z196_FEATURES */
 
@@ -133,8 +129,6 @@
 #define this_cpu_and_8(pcp, val)	arch_this_cpu_to_op(pcp, val, "lang")
 #define this_cpu_or_4(pcp, val)		arch_this_cpu_to_op(pcp, val, "lao")
 #define this_cpu_or_8(pcp, val)		arch_this_cpu_to_op(pcp, val, "laog")
-#define this_cpu_xor_4(pcp, val)	arch_this_cpu_to_op(pcp, val, "lax")
-#define this_cpu_xor_8(pcp, val)	arch_this_cpu_to_op(pcp, val, "laxg")
 
 #endif /* CONFIG_HAVE_MARCH_Z196_FEATURES */
 
-- 
cgit 


From 1db9e0513d7478f6c80ca0bc4f58f53fe49e27f8 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Wed, 30 Oct 2013 12:12:50 +0100
Subject: s390: allow to set gcc -mtune flag

Add a new Kconfig choice group which allows to configure how gcc should
tune the generated code (via -mtune option).
By default the -mtune parameter will match the -march parameter.

This is a rather large patch, but I wouldn't know how to make this shorter
unfortunately.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/Kconfig  | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 arch/s390/Makefile |  8 +++++++
 2 files changed, 69 insertions(+)

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index a02177fb5ec1..f75d7e517927 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -238,6 +238,67 @@ config MARCH_ZEC12
 
 endchoice
 
+config MARCH_G5_TUNE
+	def_bool TUNE_G5 || MARCH_G5 && TUNE_DEFAULT
+
+config MARCH_Z900_TUNE
+	def_bool TUNE_Z900 || MARCH_Z900 && TUNE_DEFAULT
+
+config MARCH_Z990_TUNE
+	def_bool TUNE_Z990 || MARCH_Z990 && TUNE_DEFAULT
+
+config MARCH_Z9_109_TUNE
+	def_bool TUNE_Z9_109 || MARCH_Z9_109 && TUNE_DEFAULT
+
+config MARCH_Z10_TUNE
+	def_bool TUNE_Z10 || MARCH_Z10 && TUNE_DEFAULT
+
+config MARCH_Z196_TUNE
+	def_bool TUNE_Z196 || MARCH_Z196 && TUNE_DEFAULT
+
+config MARCH_ZEC12_TUNE
+	def_bool TUNE_ZEC12 || MARCH_ZEC12 && TUNE_DEFAULT
+
+choice
+	prompt "Tune code generation"
+	default TUNE_DEFAULT
+	help
+	  Cause the compiler to tune (-mtune) the generated code for a machine.
+	  This will make the code run faster on the selected machine but
+	  somewhat slower on other machines.
+	  This option only changes how the compiler emits instructions, not the
+	  selection of instructions itself, so the resulting kernel will run on
+	  all other machines.
+
+config TUNE_DEFAULT
+	bool "Default"
+	help
+	  Tune the generated code for the target processor for which the kernel
+	  will be compiled.
+
+config TUNE_G5
+	bool "System/390 model G5 and G6"
+
+config TUNE_Z900
+	bool "IBM zSeries model z800 and z900"
+
+config TUNE_Z990
+	bool "IBM zSeries model z890 and z990"
+
+config TUNE_Z9_109
+	bool "IBM System z9"
+
+config TUNE_Z10
+	bool "IBM System z10"
+
+config TUNE_Z196
+	bool "IBM zEnterprise 114 and 196"
+
+config TUNE_ZEC12
+	bool "IBM zBC12 and zEC12"
+
+endchoice
+
 config 64BIT
 	def_bool y
 	prompt "64 bit kernel"
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index ecc9d4f73cc6..874e6d6e9c5f 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -43,6 +43,14 @@ cflags-$(CONFIG_MARCH_Z10)    += -march=z10
 cflags-$(CONFIG_MARCH_Z196)   += -march=z196
 cflags-$(CONFIG_MARCH_ZEC12)  += -march=zEC12
 
+cflags-$(CONFIG_MARCH_G5_TUNE)		+= -mtune=g5
+cflags-$(CONFIG_MARCH_Z900_TUNE)	+= -mtune=z900
+cflags-$(CONFIG_MARCH_Z990_TUNE)	+= -mtune=z990
+cflags-$(CONFIG_MARCH_Z9_109_TUNE)	+= -mtune=z9-109
+cflags-$(CONFIG_MARCH_Z10_TUNE)		+= -mtune=z10
+cflags-$(CONFIG_MARCH_Z196_TUNE)	+= -mtune=z196
+cflags-$(CONFIG_MARCH_ZEC12_TUNE)	+= -mtune=zEC12
+
 #KBUILD_IMAGE is necessary for make rpm
 KBUILD_IMAGE	:=arch/s390/boot/image
 
-- 
cgit 


From 769980dea10c0b6edb1903119fe0a93ab1bf8194 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Mon, 26 Aug 2013 06:17:51 -0300
Subject: [media] v4l: Fix typo in v4l2_subdev_get_try_crop()

The helper function is defined by a macro that is erroneously called
with the compose rectangle instead of the crop rectangle. Fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 include/media/v4l2-subdev.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/media/v4l2-subdev.h b/include/media/v4l2-subdev.h
index 27b28506f749..d67210a37ef3 100644
--- a/include/media/v4l2-subdev.h
+++ b/include/media/v4l2-subdev.h
@@ -641,7 +641,7 @@ struct v4l2_subdev_fh {
 	}
 
 __V4L2_SUBDEV_MK_GET_TRY(v4l2_mbus_framefmt, format, try_fmt)
-__V4L2_SUBDEV_MK_GET_TRY(v4l2_rect, crop, try_compose)
+__V4L2_SUBDEV_MK_GET_TRY(v4l2_rect, crop, try_crop)
 __V4L2_SUBDEV_MK_GET_TRY(v4l2_rect, compose, try_compose)
 #endif
 
-- 
cgit 


From 6a716c90a51338009c3bc1f460829afaed8f922d Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Sat, 19 Oct 2013 18:18:28 +0200
Subject: hung_task debugging: Add tracepoint to report the hang

Currently check_hung_task() prints a warning if it detects the
problem, but it is not convenient to watch the system logs if
user-space wants to be notified about the hang.

Add the new trace_sched_process_hang() into check_hung_task(),
this way a user-space monitor can easily wait for the hang and
potentially resolve a problem.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Dave Sullivan <dsulliva@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20131019161828.GA7439@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/trace/events/sched.h | 19 +++++++++++++++++++
 kernel/hung_task.c           |  4 ++++
 2 files changed, 23 insertions(+)

diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h
index 2e7d9947a10d..2a652d124fbb 100644
--- a/include/trace/events/sched.h
+++ b/include/trace/events/sched.h
@@ -424,6 +424,25 @@ TRACE_EVENT(sched_pi_setprio,
 			__entry->oldprio, __entry->newprio)
 );
 
+#ifdef CONFIG_DETECT_HUNG_TASK
+TRACE_EVENT(sched_process_hang,
+	TP_PROTO(struct task_struct *tsk),
+	TP_ARGS(tsk),
+
+	TP_STRUCT__entry(
+		__array( char,	comm,	TASK_COMM_LEN	)
+		__field( pid_t,	pid			)
+	),
+
+	TP_fast_assign(
+		memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
+		__entry->pid = tsk->pid;
+	),
+
+	TP_printk("comm=%s pid=%d", __entry->comm, __entry->pid)
+);
+#endif /* CONFIG_DETECT_HUNG_TASK */
+
 #endif /* _TRACE_SCHED_H */
 
 /* This part must be outside protection */
diff --git a/kernel/hung_task.c b/kernel/hung_task.c
index 042252383fd2..8807061ca004 100644
--- a/kernel/hung_task.c
+++ b/kernel/hung_task.c
@@ -16,6 +16,7 @@
 #include <linux/export.h>
 #include <linux/sysctl.h>
 #include <linux/utsname.h>
+#include <trace/events/sched.h>
 
 /*
  * The number of tasks checked:
@@ -92,6 +93,9 @@ static void check_hung_task(struct task_struct *t, unsigned long timeout)
 		t->last_switch_count = switch_count;
 		return;
 	}
+
+	trace_sched_process_hang(t);
+
 	if (!sysctl_hung_task_warnings)
 		return;
 	sysctl_hung_task_warnings--;
-- 
cgit 


From 5cc6685aca9cfb01cb6f21569502d0145fb071f0 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 18 Oct 2013 00:07:10 -0300
Subject: [media] adv7343: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/i2c/adv7343.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/i2c/adv7343.c b/drivers/media/i2c/adv7343.c
index aeb56c53e39f..d4e15a617c3b 100644
--- a/drivers/media/i2c/adv7343.c
+++ b/drivers/media/i2c/adv7343.c
@@ -25,6 +25,7 @@
 #include <linux/module.h>
 #include <linux/videodev2.h>
 #include <linux/uaccess.h>
+#include <linux/of.h>
 
 #include <media/adv7343.h>
 #include <media/v4l2-async.h>
-- 
cgit 


From 8f893815a25e2e11a9378e71c624c517f63c95e0 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 18 Oct 2013 00:07:12 -0300
Subject: [media] ths8200: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/i2c/ths8200.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/i2c/ths8200.c b/drivers/media/i2c/ths8200.c
index 5ae2a4f16a52..8cf20f73ac3d 100644
--- a/drivers/media/i2c/ths8200.c
+++ b/drivers/media/i2c/ths8200.c
@@ -19,6 +19,7 @@
 
 #include <linux/i2c.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/v4l2-dv-timings.h>
 
 #include <media/v4l2-dv-timings.h>
-- 
cgit 


From 098bcba3fcffe7c93646c3d3bd25e337eed04723 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 18 Oct 2013 00:07:13 -0300
Subject: [media] tvp514x: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/i2c/tvp514x.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/i2c/tvp514x.c b/drivers/media/i2c/tvp514x.c
index 91f3dd4cda1b..83d85df4853a 100644
--- a/drivers/media/i2c/tvp514x.c
+++ b/drivers/media/i2c/tvp514x.c
@@ -35,6 +35,7 @@
 #include <linux/videodev2.h>
 #include <linux/module.h>
 #include <linux/v4l2-mediabus.h>
+#include <linux/of.h>
 
 #include <media/v4l2-async.h>
 #include <media/v4l2-device.h>
-- 
cgit 


From b91670a0e924078521a838b9e707e42012c5e76a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 18 Oct 2013 00:07:14 -0300
Subject: [media] tvp7002: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Lad, Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/i2c/tvp7002.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/i2c/tvp7002.c b/drivers/media/i2c/tvp7002.c
index 24a08fa7e328..912e1cccdd1c 100644
--- a/drivers/media/i2c/tvp7002.c
+++ b/drivers/media/i2c/tvp7002.c
@@ -29,6 +29,7 @@
 #include <linux/slab.h>
 #include <linux/videodev2.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include <linux/v4l2-dv-timings.h>
 #include <media/tvp7002.h>
 #include <media/v4l2-async.h>
-- 
cgit 


From 8ab1aa87f3f7381be195efcabf08dbc74626f25d Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 18 Oct 2013 00:07:15 -0300
Subject: [media] gpio-ir-recv: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/rc/gpio-ir-recv.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/rc/gpio-ir-recv.c b/drivers/media/rc/gpio-ir-recv.c
index 07aacfa5903d..80c611c2e8c2 100644
--- a/drivers/media/rc/gpio-ir-recv.c
+++ b/drivers/media/rc/gpio-ir-recv.c
@@ -16,6 +16,7 @@
 #include <linux/interrupt.h>
 #include <linux/gpio.h>
 #include <linux/slab.h>
+#include <linux/of.h>
 #include <linux/of_gpio.h>
 #include <linux/platform_device.h>
 #include <linux/irq.h>
-- 
cgit 


From 80f93c7b0f4599ffbdac8d964ecd1162b8b618b9 Mon Sep 17 00:00:00 2001
From: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Date: Fri, 18 Oct 2013 06:01:14 -0300
Subject: [media] media: st-rc: Add ST remote control driver

This patch adds support to ST RC driver, which is basically a IR/UHF
receiver and transmitter. This IP (IRB) is common across all the ST
parts for settop box platforms. IRB is embedded in ST COMMS IP block.
It supports both Rx & Tx functionality.
This driver adds only Rx functionality via LIRC codec.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Acked-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 Documentation/devicetree/bindings/media/st-rc.txt |  29 ++
 drivers/media/rc/Kconfig                          |  10 +
 drivers/media/rc/Makefile                         |   1 +
 drivers/media/rc/st_rc.c                          | 395 ++++++++++++++++++++++
 4 files changed, 435 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/st-rc.txt
 create mode 100644 drivers/media/rc/st_rc.c

diff --git a/Documentation/devicetree/bindings/media/st-rc.txt b/Documentation/devicetree/bindings/media/st-rc.txt
new file mode 100644
index 000000000000..05c432d08bca
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/st-rc.txt
@@ -0,0 +1,29 @@
+Device-Tree bindings for ST IRB IP
+
+Required properties:
+	- compatible: Should contain "st,comms-irb".
+	- reg: Base physical address of the controller and length of memory
+	  mapped region.
+	- interrupts: interrupt-specifier for the sole interrupt generated by
+	  the device. The interrupt specifier format depends on the interrupt
+	  controller parent.
+	- rx-mode: can be "infrared" or "uhf". This property specifies the L1
+	  protocol used for receiving remote control signals. rx-mode should
+	  be present iff the rx pins are wired up.
+	- tx-mode: should be "infrared". This property specifies the L1
+	  protocol used for transmitting remote control signals. tx-mode should
+	  be present iff the tx pins are wired up.
+
+Optional properties:
+	- pinctrl-names, pinctrl-0: the pincontrol settings to configure muxing
+	  properly for IRB pins.
+	- clocks : phandle with clock-specifier pair for IRB.
+
+Example node:
+
+	rc: rc@fe518000 {
+		compatible	= "st,comms-irb";
+		reg		= <0xfe518000 0x234>;
+		interrupts	= <0 203 0>;
+		rx-mode		= "infrared";
+	};
diff --git a/drivers/media/rc/Kconfig b/drivers/media/rc/Kconfig
index 11e84bcc23a1..904f11367c29 100644
--- a/drivers/media/rc/Kconfig
+++ b/drivers/media/rc/Kconfig
@@ -322,4 +322,14 @@ config IR_GPIO_CIR
 	   To compile this driver as a module, choose M here: the module will
 	   be called gpio-ir-recv.
 
+config RC_ST
+	tristate "ST remote control receiver"
+	depends on ARCH_STI && RC_CORE
+	help
+	 Say Y here if you want support for ST remote control driver
+	 which allows both IR and UHF RX.
+	 The driver passes raw pulse and space information to the LIRC decoder.
+
+	 If you're not sure, select N here.
+
 endif #RC_DEVICES
diff --git a/drivers/media/rc/Makefile b/drivers/media/rc/Makefile
index 56bacf07b361..f4eb32c0a455 100644
--- a/drivers/media/rc/Makefile
+++ b/drivers/media/rc/Makefile
@@ -30,3 +30,4 @@ obj-$(CONFIG_RC_LOOPBACK) += rc-loopback.o
 obj-$(CONFIG_IR_GPIO_CIR) += gpio-ir-recv.o
 obj-$(CONFIG_IR_IGUANA) += iguanair.o
 obj-$(CONFIG_IR_TTUSBIR) += ttusbir.o
+obj-$(CONFIG_RC_ST) += st_rc.o
diff --git a/drivers/media/rc/st_rc.c b/drivers/media/rc/st_rc.c
new file mode 100644
index 000000000000..65120c2d47ad
--- /dev/null
+++ b/drivers/media/rc/st_rc.c
@@ -0,0 +1,395 @@
+/*
+ * Copyright (C) 2013 STMicroelectronics Limited
+ * Author: Srinivas Kandagatla <srinivas.kandagatla@st.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+#include <linux/kernel.h>
+#include <linux/clk.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <media/rc-core.h>
+#include <linux/pinctrl/consumer.h>
+
+struct st_rc_device {
+	struct device			*dev;
+	int				irq;
+	int				irq_wake;
+	struct clk			*sys_clock;
+	void				*base;	/* Register base address */
+	void				*rx_base;/* RX Register base address */
+	struct rc_dev			*rdev;
+	bool				overclocking;
+	int				sample_mult;
+	int				sample_div;
+	bool				rxuhfmode;
+};
+
+/* Registers */
+#define IRB_SAMPLE_RATE_COMM	0x64	/* sample freq divisor*/
+#define IRB_CLOCK_SEL		0x70	/* clock select       */
+#define IRB_CLOCK_SEL_STATUS	0x74	/* clock status       */
+/* IRB IR/UHF receiver registers */
+#define IRB_RX_ON               0x40	/* pulse time capture */
+#define IRB_RX_SYS              0X44	/* sym period capture */
+#define IRB_RX_INT_EN           0x48	/* IRQ enable (R/W)   */
+#define IRB_RX_INT_STATUS       0x4c	/* IRQ status (R/W)   */
+#define IRB_RX_EN               0x50	/* Receive enable     */
+#define IRB_MAX_SYM_PERIOD      0x54	/* max sym value      */
+#define IRB_RX_INT_CLEAR        0x58	/* overrun status     */
+#define IRB_RX_STATUS           0x6c	/* receive status     */
+#define IRB_RX_NOISE_SUPPR      0x5c	/* noise suppression  */
+#define IRB_RX_POLARITY_INV     0x68	/* polarity inverter  */
+
+/**
+ * IRQ set: Enable full FIFO                 1  -> bit  3;
+ *          Enable overrun IRQ               1  -> bit  2;
+ *          Enable last symbol IRQ           1  -> bit  1:
+ *          Enable RX interrupt              1  -> bit  0;
+ */
+#define IRB_RX_INTS		0x0f
+#define IRB_RX_OVERRUN_INT	0x04
+ /* maximum symbol period (microsecs),timeout to detect end of symbol train */
+#define MAX_SYMB_TIME		0x5000
+#define IRB_SAMPLE_FREQ		10000000
+#define	IRB_FIFO_NOT_EMPTY	0xff00
+#define IRB_OVERFLOW		0x4
+#define IRB_TIMEOUT		0xffff
+#define IR_ST_NAME "st-rc"
+
+static void st_rc_send_lirc_timeout(struct rc_dev *rdev)
+{
+	DEFINE_IR_RAW_EVENT(ev);
+	ev.timeout = true;
+	ir_raw_event_store(rdev, &ev);
+}
+
+/**
+ * RX graphical example to better understand the difference between ST IR block
+ * output and standard definition used by LIRC (and most of the world!)
+ *
+ *           mark                                     mark
+ *      |-IRB_RX_ON-|                            |-IRB_RX_ON-|
+ *      ___  ___  ___                            ___  ___  ___             _
+ *      | |  | |  | |                            | |  | |  | |             |
+ *      | |  | |  | |         space 0            | |  | |  | |   space 1   |
+ * _____| |__| |__| |____________________________| |__| |__| |_____________|
+ *
+ *      |--------------- IRB_RX_SYS -------------|------ IRB_RX_SYS -------|
+ *
+ *      |------------- encoding bit 0 -----------|---- encoding bit 1 -----|
+ *
+ * ST hardware returns mark (IRB_RX_ON) and total symbol time (IRB_RX_SYS), so
+ * convert to standard mark/space we have to calculate space=(IRB_RX_SYS-mark)
+ * The mark time represents the amount of time the carrier (usually 36-40kHz)
+ * is detected.The above examples shows Pulse Width Modulation encoding where
+ * bit 0 is represented by space>mark.
+ */
+
+static irqreturn_t st_rc_rx_interrupt(int irq, void *data)
+{
+	unsigned int symbol, mark = 0;
+	struct st_rc_device *dev = data;
+	int last_symbol = 0;
+	u32 status;
+	DEFINE_IR_RAW_EVENT(ev);
+
+	if (dev->irq_wake)
+		pm_wakeup_event(dev->dev, 0);
+
+	status  = readl(dev->rx_base + IRB_RX_STATUS);
+
+	while (status & (IRB_FIFO_NOT_EMPTY | IRB_OVERFLOW)) {
+		u32 int_status = readl(dev->rx_base + IRB_RX_INT_STATUS);
+		if (unlikely(int_status & IRB_RX_OVERRUN_INT)) {
+			/* discard the entire collection in case of errors!  */
+			ir_raw_event_reset(dev->rdev);
+			dev_info(dev->dev, "IR RX overrun\n");
+			writel(IRB_RX_OVERRUN_INT,
+					dev->rx_base + IRB_RX_INT_CLEAR);
+			continue;
+		}
+
+		symbol = readl(dev->rx_base + IRB_RX_SYS);
+		mark = readl(dev->rx_base + IRB_RX_ON);
+
+		if (symbol == IRB_TIMEOUT)
+			last_symbol = 1;
+
+		 /* Ignore any noise */
+		if ((mark > 2) && (symbol > 1)) {
+			symbol -= mark;
+			if (dev->overclocking) { /* adjustments to timings */
+				symbol *= dev->sample_mult;
+				symbol /= dev->sample_div;
+				mark *= dev->sample_mult;
+				mark /= dev->sample_div;
+			}
+
+			ev.duration = US_TO_NS(mark);
+			ev.pulse = true;
+			ir_raw_event_store(dev->rdev, &ev);
+
+			if (!last_symbol) {
+				ev.duration = US_TO_NS(symbol);
+				ev.pulse = false;
+				ir_raw_event_store(dev->rdev, &ev);
+			} else  {
+				st_rc_send_lirc_timeout(dev->rdev);
+			}
+
+		}
+		last_symbol = 0;
+		status  = readl(dev->rx_base + IRB_RX_STATUS);
+	}
+
+	writel(IRB_RX_INTS, dev->rx_base + IRB_RX_INT_CLEAR);
+
+	/* Empty software fifo */
+	ir_raw_event_handle(dev->rdev);
+	return IRQ_HANDLED;
+}
+
+static void st_rc_hardware_init(struct st_rc_device *dev)
+{
+	int baseclock, freqdiff;
+	unsigned int rx_max_symbol_per = MAX_SYMB_TIME;
+	unsigned int rx_sampling_freq_div;
+
+	clk_prepare_enable(dev->sys_clock);
+	baseclock = clk_get_rate(dev->sys_clock);
+
+	/* IRB input pins are inverted internally from high to low. */
+	writel(1, dev->rx_base + IRB_RX_POLARITY_INV);
+
+	rx_sampling_freq_div = baseclock / IRB_SAMPLE_FREQ;
+	writel(rx_sampling_freq_div, dev->base + IRB_SAMPLE_RATE_COMM);
+
+	freqdiff = baseclock - (rx_sampling_freq_div * IRB_SAMPLE_FREQ);
+	if (freqdiff) { /* over clocking, workout the adjustment factors */
+		dev->overclocking = true;
+		dev->sample_mult = 1000;
+		dev->sample_div = baseclock / (10000 * rx_sampling_freq_div);
+		rx_max_symbol_per = (rx_max_symbol_per * 1000)/dev->sample_div;
+	}
+
+	writel(rx_max_symbol_per, dev->rx_base + IRB_MAX_SYM_PERIOD);
+}
+
+static int st_rc_remove(struct platform_device *pdev)
+{
+	struct st_rc_device *rc_dev = platform_get_drvdata(pdev);
+	clk_disable_unprepare(rc_dev->sys_clock);
+	rc_unregister_device(rc_dev->rdev);
+	return 0;
+}
+
+static int st_rc_open(struct rc_dev *rdev)
+{
+	struct st_rc_device *dev = rdev->priv;
+	unsigned long flags;
+	local_irq_save(flags);
+	/* enable interrupts and receiver */
+	writel(IRB_RX_INTS, dev->rx_base + IRB_RX_INT_EN);
+	writel(0x01, dev->rx_base + IRB_RX_EN);
+	local_irq_restore(flags);
+
+	return 0;
+}
+
+static void st_rc_close(struct rc_dev *rdev)
+{
+	struct st_rc_device *dev = rdev->priv;
+	/* disable interrupts and receiver */
+	writel(0x00, dev->rx_base + IRB_RX_EN);
+	writel(0x00, dev->rx_base + IRB_RX_INT_EN);
+}
+
+static int st_rc_probe(struct platform_device *pdev)
+{
+	int ret = -EINVAL;
+	struct rc_dev *rdev;
+	struct device *dev = &pdev->dev;
+	struct resource *res;
+	struct st_rc_device *rc_dev;
+	struct device_node *np = pdev->dev.of_node;
+	const char *rx_mode;
+
+	rc_dev = devm_kzalloc(dev, sizeof(struct st_rc_device), GFP_KERNEL);
+
+	if (!rc_dev)
+		return -ENOMEM;
+
+	rdev = rc_allocate_device();
+
+	if (!rdev)
+		return -ENOMEM;
+
+	if (np && !of_property_read_string(np, "rx-mode", &rx_mode)) {
+
+		if (!strcmp(rx_mode, "uhf")) {
+			rc_dev->rxuhfmode = true;
+		} else if (!strcmp(rx_mode, "infrared")) {
+			rc_dev->rxuhfmode = false;
+		} else {
+			dev_err(dev, "Unsupported rx mode [%s]\n", rx_mode);
+			goto err;
+		}
+
+	} else {
+		goto err;
+	}
+
+	rc_dev->sys_clock = devm_clk_get(dev, NULL);
+	if (IS_ERR(rc_dev->sys_clock)) {
+		dev_err(dev, "System clock not found\n");
+		ret = PTR_ERR(rc_dev->sys_clock);
+		goto err;
+	}
+
+	rc_dev->irq = platform_get_irq(pdev, 0);
+	if (rc_dev->irq < 0) {
+		ret = rc_dev->irq;
+		goto err;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	rc_dev->base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(rc_dev->base)) {
+		ret = PTR_ERR(rc_dev->base);
+		goto err;
+	}
+
+	if (rc_dev->rxuhfmode)
+		rc_dev->rx_base = rc_dev->base + 0x40;
+	else
+		rc_dev->rx_base = rc_dev->base;
+
+	rc_dev->dev = dev;
+	platform_set_drvdata(pdev, rc_dev);
+	st_rc_hardware_init(rc_dev);
+
+	rdev->driver_type = RC_DRIVER_IR_RAW;
+	rdev->allowed_protos = RC_BIT_ALL;
+	/* rx sampling rate is 10Mhz */
+	rdev->rx_resolution = 100;
+	rdev->timeout = US_TO_NS(MAX_SYMB_TIME);
+	rdev->priv = rc_dev;
+	rdev->open = st_rc_open;
+	rdev->close = st_rc_close;
+	rdev->driver_name = IR_ST_NAME;
+	rdev->map_name = RC_MAP_LIRC;
+	rdev->input_name = "ST Remote Control Receiver";
+
+	/* enable wake via this device */
+	device_set_wakeup_capable(dev, true);
+	device_set_wakeup_enable(dev, true);
+
+	ret = rc_register_device(rdev);
+	if (ret < 0)
+		goto clkerr;
+
+	rc_dev->rdev = rdev;
+	if (devm_request_irq(dev, rc_dev->irq, st_rc_rx_interrupt,
+			IRQF_NO_SUSPEND, IR_ST_NAME, rc_dev) < 0) {
+		dev_err(dev, "IRQ %d register failed\n", rc_dev->irq);
+		ret = -EINVAL;
+		goto rcerr;
+	}
+
+	/**
+	 * for LIRC_MODE_MODE2 or LIRC_MODE_PULSE or LIRC_MODE_RAW
+	 * lircd expects a long space first before a signal train to sync.
+	 */
+	st_rc_send_lirc_timeout(rdev);
+
+	dev_info(dev, "setup in %s mode\n", rc_dev->rxuhfmode ? "UHF" : "IR");
+
+	return ret;
+rcerr:
+	rc_unregister_device(rdev);
+	rdev = NULL;
+clkerr:
+	clk_disable_unprepare(rc_dev->sys_clock);
+err:
+	rc_free_device(rdev);
+	dev_err(dev, "Unable to register device (%d)\n", ret);
+	return ret;
+}
+
+#ifdef CONFIG_PM
+static int st_rc_suspend(struct device *dev)
+{
+	struct st_rc_device *rc_dev = dev_get_drvdata(dev);
+
+	if (device_may_wakeup(dev)) {
+		if (!enable_irq_wake(rc_dev->irq))
+			rc_dev->irq_wake = 1;
+		else
+			return -EINVAL;
+	} else {
+		pinctrl_pm_select_sleep_state(dev);
+		writel(0x00, rc_dev->rx_base + IRB_RX_EN);
+		writel(0x00, rc_dev->rx_base + IRB_RX_INT_EN);
+		clk_disable_unprepare(rc_dev->sys_clock);
+	}
+
+	return 0;
+}
+
+static int st_rc_resume(struct device *dev)
+{
+	struct st_rc_device *rc_dev = dev_get_drvdata(dev);
+	struct rc_dev	*rdev = rc_dev->rdev;
+
+	if (rc_dev->irq_wake) {
+		disable_irq_wake(rc_dev->irq);
+		rc_dev->irq_wake = 0;
+	} else {
+		pinctrl_pm_select_default_state(dev);
+		st_rc_hardware_init(rc_dev);
+		if (rdev->users) {
+			writel(IRB_RX_INTS, rc_dev->rx_base + IRB_RX_INT_EN);
+			writel(0x01, rc_dev->rx_base + IRB_RX_EN);
+		}
+	}
+
+	return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(st_rc_pm_ops, st_rc_suspend, st_rc_resume);
+#endif
+
+#ifdef CONFIG_OF
+static struct of_device_id st_rc_match[] = {
+	{ .compatible = "st,comms-irb", },
+	{},
+};
+
+MODULE_DEVICE_TABLE(of, st_rc_match);
+#endif
+
+static struct platform_driver st_rc_driver = {
+	.driver = {
+		.name = IR_ST_NAME,
+		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(st_rc_match),
+#ifdef CONFIG_PM
+		.pm     = &st_rc_pm_ops,
+#endif
+	},
+	.probe = st_rc_probe,
+	.remove = st_rc_remove,
+};
+
+module_platform_driver(st_rc_driver);
+
+MODULE_DESCRIPTION("RC Transceiver driver for STMicroelectronics platforms");
+MODULE_AUTHOR("STMicroelectronics (R&D) Ltd");
+MODULE_LICENSE("GPL");
-- 
cgit 


From 8623ec220b9c9d873ef82d41c9adbac7eec53174 Mon Sep 17 00:00:00 2001
From: Marek Belisko <marek@goldelico.com>
Date: Tue, 29 Oct 2013 23:25:40 +0100
Subject: omapdss: Add new panel driver for Topolly td028ttec1 LCD.

Signed-off-by: Marek Belisko <marek@goldelico.com>
Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
[tomi.valkeinen@ti.com: made a few funcs static]
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/displays-new/Kconfig           |   6 +
 drivers/video/omap2/displays-new/Makefile          |   1 +
 .../omap2/displays-new/panel-tpo-td028ttec1.c      | 480 +++++++++++++++++++++
 include/video/omap-panel-data.h                    |  13 +
 4 files changed, 500 insertions(+)
 create mode 100644 drivers/video/omap2/displays-new/panel-tpo-td028ttec1.c

diff --git a/drivers/video/omap2/displays-new/Kconfig b/drivers/video/omap2/displays-new/Kconfig
index 6c90885b0940..1054249b16a5 100644
--- a/drivers/video/omap2/displays-new/Kconfig
+++ b/drivers/video/omap2/displays-new/Kconfig
@@ -56,6 +56,12 @@ config DISPLAY_PANEL_SHARP_LS037V7DW01
         help
           LCD Panel used in TI's SDP3430 and EVM boards
 
+config DISPLAY_PANEL_TPO_TD028TTEC1
+        tristate "TPO TD028TTEC1 LCD Panel"
+        depends on SPI
+        help
+          LCD panel used in Openmoko.
+
 config DISPLAY_PANEL_TPO_TD043MTEA1
         tristate "TPO TD043MTEA1 LCD Panel"
         depends on SPI
diff --git a/drivers/video/omap2/displays-new/Makefile b/drivers/video/omap2/displays-new/Makefile
index 5aeb11b8fcd5..0323a8a1c682 100644
--- a/drivers/video/omap2/displays-new/Makefile
+++ b/drivers/video/omap2/displays-new/Makefile
@@ -8,5 +8,6 @@ obj-$(CONFIG_DISPLAY_PANEL_DSI_CM) += panel-dsi-cm.o
 obj-$(CONFIG_DISPLAY_PANEL_SONY_ACX565AKM) += panel-sony-acx565akm.o
 obj-$(CONFIG_DISPLAY_PANEL_LGPHILIPS_LB035Q02) += panel-lgphilips-lb035q02.o
 obj-$(CONFIG_DISPLAY_PANEL_SHARP_LS037V7DW01) += panel-sharp-ls037v7dw01.o
+obj-$(CONFIG_DISPLAY_PANEL_TPO_TD028TTEC1) += panel-tpo-td028ttec1.o
 obj-$(CONFIG_DISPLAY_PANEL_TPO_TD043MTEA1) += panel-tpo-td043mtea1.o
 obj-$(CONFIG_DISPLAY_PANEL_NEC_NL8048HL11) += panel-nec-nl8048hl11.o
diff --git a/drivers/video/omap2/displays-new/panel-tpo-td028ttec1.c b/drivers/video/omap2/displays-new/panel-tpo-td028ttec1.c
new file mode 100644
index 000000000000..9a08908fe998
--- /dev/null
+++ b/drivers/video/omap2/displays-new/panel-tpo-td028ttec1.c
@@ -0,0 +1,480 @@
+/*
+ * Toppoly TD028TTEC1 panel support
+ *
+ * Copyright (C) 2008 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * Neo 1973 code (jbt6k74.c):
+ * Copyright (C) 2006-2007 by OpenMoko, Inc.
+ * Author: Harald Welte <laforge@openmoko.org>
+ *
+ * Ported and adapted from Neo 1973 U-Boot by:
+ * H. Nikolaus Schaller <hns@goldelico.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/spi/spi.h>
+#include <linux/gpio.h>
+#include <video/omapdss.h>
+#include <video/omap-panel-data.h>
+
+struct panel_drv_data {
+	struct omap_dss_device dssdev;
+	struct omap_dss_device *in;
+
+	int data_lines;
+
+	struct omap_video_timings videomode;
+
+	struct spi_device *spi_dev;
+};
+
+static struct omap_video_timings td028ttec1_panel_timings = {
+	.x_res		= 480,
+	.y_res		= 640,
+	.pixel_clock	= 22153,
+	.hfp		= 24,
+	.hsw		= 8,
+	.hbp		= 8,
+	.vfp		= 4,
+	.vsw		= 2,
+	.vbp		= 2,
+
+	.vsync_level	= OMAPDSS_SIG_ACTIVE_LOW,
+	.hsync_level	= OMAPDSS_SIG_ACTIVE_LOW,
+
+	.data_pclk_edge	= OMAPDSS_DRIVE_SIG_FALLING_EDGE,
+	.de_level	= OMAPDSS_SIG_ACTIVE_HIGH,
+	.sync_pclk_edge	= OMAPDSS_DRIVE_SIG_OPPOSITE_EDGES,
+};
+
+#define JBT_COMMAND	0x000
+#define JBT_DATA	0x100
+
+static int jbt_ret_write_0(struct panel_drv_data *ddata, u8 reg)
+{
+	int rc;
+	u16 tx_buf = JBT_COMMAND | reg;
+
+	rc = spi_write(ddata->spi_dev, (u8 *)&tx_buf,
+			1*sizeof(u16));
+	if (rc != 0)
+		dev_err(&ddata->spi_dev->dev,
+			"jbt_ret_write_0 spi_write ret %d\n", rc);
+
+	return rc;
+}
+
+static int jbt_reg_write_1(struct panel_drv_data *ddata, u8 reg, u8 data)
+{
+	int rc;
+	u16 tx_buf[2];
+
+	tx_buf[0] = JBT_COMMAND | reg;
+	tx_buf[1] = JBT_DATA | data;
+	rc = spi_write(ddata->spi_dev, (u8 *)tx_buf,
+			2*sizeof(u16));
+	if (rc != 0)
+		dev_err(&ddata->spi_dev->dev,
+			"jbt_reg_write_1 spi_write ret %d\n", rc);
+
+	return rc;
+}
+
+static int jbt_reg_write_2(struct panel_drv_data *ddata, u8 reg, u16 data)
+{
+	int rc;
+	u16 tx_buf[3];
+
+	tx_buf[0] = JBT_COMMAND | reg;
+	tx_buf[1] = JBT_DATA | (data >> 8);
+	tx_buf[2] = JBT_DATA | (data & 0xff);
+
+	rc = spi_write(ddata->spi_dev, (u8 *)tx_buf,
+			3*sizeof(u16));
+
+	if (rc != 0)
+		dev_err(&ddata->spi_dev->dev,
+			"jbt_reg_write_2 spi_write ret %d\n", rc);
+
+	return rc;
+}
+
+enum jbt_register {
+	JBT_REG_SLEEP_IN		= 0x10,
+	JBT_REG_SLEEP_OUT		= 0x11,
+
+	JBT_REG_DISPLAY_OFF		= 0x28,
+	JBT_REG_DISPLAY_ON		= 0x29,
+
+	JBT_REG_RGB_FORMAT		= 0x3a,
+	JBT_REG_QUAD_RATE		= 0x3b,
+
+	JBT_REG_POWER_ON_OFF		= 0xb0,
+	JBT_REG_BOOSTER_OP		= 0xb1,
+	JBT_REG_BOOSTER_MODE		= 0xb2,
+	JBT_REG_BOOSTER_FREQ		= 0xb3,
+	JBT_REG_OPAMP_SYSCLK		= 0xb4,
+	JBT_REG_VSC_VOLTAGE		= 0xb5,
+	JBT_REG_VCOM_VOLTAGE		= 0xb6,
+	JBT_REG_EXT_DISPL		= 0xb7,
+	JBT_REG_OUTPUT_CONTROL		= 0xb8,
+	JBT_REG_DCCLK_DCEV		= 0xb9,
+	JBT_REG_DISPLAY_MODE1		= 0xba,
+	JBT_REG_DISPLAY_MODE2		= 0xbb,
+	JBT_REG_DISPLAY_MODE		= 0xbc,
+	JBT_REG_ASW_SLEW		= 0xbd,
+	JBT_REG_DUMMY_DISPLAY		= 0xbe,
+	JBT_REG_DRIVE_SYSTEM		= 0xbf,
+
+	JBT_REG_SLEEP_OUT_FR_A		= 0xc0,
+	JBT_REG_SLEEP_OUT_FR_B		= 0xc1,
+	JBT_REG_SLEEP_OUT_FR_C		= 0xc2,
+	JBT_REG_SLEEP_IN_LCCNT_D	= 0xc3,
+	JBT_REG_SLEEP_IN_LCCNT_E	= 0xc4,
+	JBT_REG_SLEEP_IN_LCCNT_F	= 0xc5,
+	JBT_REG_SLEEP_IN_LCCNT_G	= 0xc6,
+
+	JBT_REG_GAMMA1_FINE_1		= 0xc7,
+	JBT_REG_GAMMA1_FINE_2		= 0xc8,
+	JBT_REG_GAMMA1_INCLINATION	= 0xc9,
+	JBT_REG_GAMMA1_BLUE_OFFSET	= 0xca,
+
+	JBT_REG_BLANK_CONTROL		= 0xcf,
+	JBT_REG_BLANK_TH_TV		= 0xd0,
+	JBT_REG_CKV_ON_OFF		= 0xd1,
+	JBT_REG_CKV_1_2			= 0xd2,
+	JBT_REG_OEV_TIMING		= 0xd3,
+	JBT_REG_ASW_TIMING_1		= 0xd4,
+	JBT_REG_ASW_TIMING_2		= 0xd5,
+
+	JBT_REG_HCLOCK_VGA		= 0xec,
+	JBT_REG_HCLOCK_QVGA		= 0xed,
+};
+
+#define to_panel_data(p) container_of(p, struct panel_drv_data, dssdev)
+
+static int td028ttec1_panel_connect(struct omap_dss_device *dssdev)
+{
+	struct panel_drv_data *ddata = to_panel_data(dssdev);
+	struct omap_dss_device *in = ddata->in;
+	int r;
+
+	if (omapdss_device_is_connected(dssdev))
+		return 0;
+
+	r = in->ops.dpi->connect(in, dssdev);
+	if (r)
+		return r;
+
+	return 0;
+}
+
+static void td028ttec1_panel_disconnect(struct omap_dss_device *dssdev)
+{
+	struct panel_drv_data *ddata = to_panel_data(dssdev);
+	struct omap_dss_device *in = ddata->in;
+
+	if (!omapdss_device_is_connected(dssdev))
+		return;
+
+	in->ops.dpi->disconnect(in, dssdev);
+}
+
+static int td028ttec1_panel_enable(struct omap_dss_device *dssdev)
+{
+	struct panel_drv_data *ddata = to_panel_data(dssdev);
+	struct omap_dss_device *in = ddata->in;
+	int r;
+
+	if (!omapdss_device_is_connected(dssdev))
+		return -ENODEV;
+
+	if (omapdss_device_is_enabled(dssdev))
+		return 0;
+
+	in->ops.dpi->set_data_lines(in, ddata->data_lines);
+	in->ops.dpi->set_timings(in, &ddata->videomode);
+
+	r = in->ops.dpi->enable(in);
+	if (r)
+		return r;
+
+	dev_dbg(dssdev->dev, "td028ttec1_panel_enable() - state %d\n",
+		dssdev->state);
+
+	/* three times command zero */
+	r |= jbt_ret_write_0(ddata, 0x00);
+	usleep_range(1000, 2000);
+	r |= jbt_ret_write_0(ddata, 0x00);
+	usleep_range(1000, 2000);
+	r |= jbt_ret_write_0(ddata, 0x00);
+	usleep_range(1000, 2000);
+
+	if (r) {
+		dev_warn(dssdev->dev, "transfer error\n");
+		goto transfer_err;
+	}
+
+	/* deep standby out */
+	r |= jbt_reg_write_1(ddata, JBT_REG_POWER_ON_OFF, 0x17);
+
+	/* RGB I/F on, RAM write off, QVGA through, SIGCON enable */
+	r |= jbt_reg_write_1(ddata, JBT_REG_DISPLAY_MODE, 0x80);
+
+	/* Quad mode off */
+	r |= jbt_reg_write_1(ddata, JBT_REG_QUAD_RATE, 0x00);
+
+	/* AVDD on, XVDD on */
+	r |= jbt_reg_write_1(ddata, JBT_REG_POWER_ON_OFF, 0x16);
+
+	/* Output control */
+	r |= jbt_reg_write_2(ddata, JBT_REG_OUTPUT_CONTROL, 0xfff9);
+
+	/* Sleep mode off */
+	r |= jbt_ret_write_0(ddata, JBT_REG_SLEEP_OUT);
+
+	/* at this point we have like 50% grey */
+
+	/* initialize register set */
+	r |= jbt_reg_write_1(ddata, JBT_REG_DISPLAY_MODE1, 0x01);
+	r |= jbt_reg_write_1(ddata, JBT_REG_DISPLAY_MODE2, 0x00);
+	r |= jbt_reg_write_1(ddata, JBT_REG_RGB_FORMAT, 0x60);
+	r |= jbt_reg_write_1(ddata, JBT_REG_DRIVE_SYSTEM, 0x10);
+	r |= jbt_reg_write_1(ddata, JBT_REG_BOOSTER_OP, 0x56);
+	r |= jbt_reg_write_1(ddata, JBT_REG_BOOSTER_MODE, 0x33);
+	r |= jbt_reg_write_1(ddata, JBT_REG_BOOSTER_FREQ, 0x11);
+	r |= jbt_reg_write_1(ddata, JBT_REG_BOOSTER_FREQ, 0x11);
+	r |= jbt_reg_write_1(ddata, JBT_REG_OPAMP_SYSCLK, 0x02);
+	r |= jbt_reg_write_1(ddata, JBT_REG_VSC_VOLTAGE, 0x2b);
+	r |= jbt_reg_write_1(ddata, JBT_REG_VCOM_VOLTAGE, 0x40);
+	r |= jbt_reg_write_1(ddata, JBT_REG_EXT_DISPL, 0x03);
+	r |= jbt_reg_write_1(ddata, JBT_REG_DCCLK_DCEV, 0x04);
+	/*
+	 * default of 0x02 in JBT_REG_ASW_SLEW responsible for 72Hz requirement
+	 * to avoid red / blue flicker
+	 */
+	r |= jbt_reg_write_1(ddata, JBT_REG_ASW_SLEW, 0x04);
+	r |= jbt_reg_write_1(ddata, JBT_REG_DUMMY_DISPLAY, 0x00);
+
+	r |= jbt_reg_write_1(ddata, JBT_REG_SLEEP_OUT_FR_A, 0x11);
+	r |= jbt_reg_write_1(ddata, JBT_REG_SLEEP_OUT_FR_B, 0x11);
+	r |= jbt_reg_write_1(ddata, JBT_REG_SLEEP_OUT_FR_C, 0x11);
+	r |= jbt_reg_write_2(ddata, JBT_REG_SLEEP_IN_LCCNT_D, 0x2040);
+	r |= jbt_reg_write_2(ddata, JBT_REG_SLEEP_IN_LCCNT_E, 0x60c0);
+	r |= jbt_reg_write_2(ddata, JBT_REG_SLEEP_IN_LCCNT_F, 0x1020);
+	r |= jbt_reg_write_2(ddata, JBT_REG_SLEEP_IN_LCCNT_G, 0x60c0);
+
+	r |= jbt_reg_write_2(ddata, JBT_REG_GAMMA1_FINE_1, 0x5533);
+	r |= jbt_reg_write_1(ddata, JBT_REG_GAMMA1_FINE_2, 0x00);
+	r |= jbt_reg_write_1(ddata, JBT_REG_GAMMA1_INCLINATION, 0x00);
+	r |= jbt_reg_write_1(ddata, JBT_REG_GAMMA1_BLUE_OFFSET, 0x00);
+
+	r |= jbt_reg_write_2(ddata, JBT_REG_HCLOCK_VGA, 0x1f0);
+	r |= jbt_reg_write_1(ddata, JBT_REG_BLANK_CONTROL, 0x02);
+	r |= jbt_reg_write_2(ddata, JBT_REG_BLANK_TH_TV, 0x0804);
+
+	r |= jbt_reg_write_1(ddata, JBT_REG_CKV_ON_OFF, 0x01);
+	r |= jbt_reg_write_2(ddata, JBT_REG_CKV_1_2, 0x0000);
+
+	r |= jbt_reg_write_2(ddata, JBT_REG_OEV_TIMING, 0x0d0e);
+	r |= jbt_reg_write_2(ddata, JBT_REG_ASW_TIMING_1, 0x11a4);
+	r |= jbt_reg_write_1(ddata, JBT_REG_ASW_TIMING_2, 0x0e);
+
+	r |= jbt_ret_write_0(ddata, JBT_REG_DISPLAY_ON);
+
+	dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+transfer_err:
+
+	return r ? -EIO : 0;
+}
+
+static void td028ttec1_panel_disable(struct omap_dss_device *dssdev)
+{
+	struct panel_drv_data *ddata = to_panel_data(dssdev);
+	struct omap_dss_device *in = ddata->in;
+
+	if (!omapdss_device_is_enabled(dssdev))
+		return;
+
+	dev_dbg(dssdev->dev, "td028ttec1_panel_disable()\n");
+
+	jbt_ret_write_0(ddata, JBT_REG_DISPLAY_OFF);
+	jbt_reg_write_2(ddata, JBT_REG_OUTPUT_CONTROL, 0x8002);
+	jbt_ret_write_0(ddata, JBT_REG_SLEEP_IN);
+	jbt_reg_write_1(ddata, JBT_REG_POWER_ON_OFF, 0x00);
+
+	in->ops.dpi->disable(in);
+
+	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
+}
+
+static void td028ttec1_panel_set_timings(struct omap_dss_device *dssdev,
+		struct omap_video_timings *timings)
+{
+	struct panel_drv_data *ddata = to_panel_data(dssdev);
+	struct omap_dss_device *in = ddata->in;
+
+	ddata->videomode = *timings;
+	dssdev->panel.timings = *timings;
+
+	in->ops.dpi->set_timings(in, timings);
+}
+
+static void td028ttec1_panel_get_timings(struct omap_dss_device *dssdev,
+		struct omap_video_timings *timings)
+{
+	struct panel_drv_data *ddata = to_panel_data(dssdev);
+
+	*timings = ddata->videomode;
+}
+
+static int td028ttec1_panel_check_timings(struct omap_dss_device *dssdev,
+		struct omap_video_timings *timings)
+{
+	struct panel_drv_data *ddata = to_panel_data(dssdev);
+	struct omap_dss_device *in = ddata->in;
+
+	return in->ops.dpi->check_timings(in, timings);
+}
+
+static struct omap_dss_driver td028ttec1_ops = {
+	.connect	= td028ttec1_panel_connect,
+	.disconnect	= td028ttec1_panel_disconnect,
+
+	.enable		= td028ttec1_panel_enable,
+	.disable	= td028ttec1_panel_disable,
+
+	.set_timings	= td028ttec1_panel_set_timings,
+	.get_timings	= td028ttec1_panel_get_timings,
+	.check_timings	= td028ttec1_panel_check_timings,
+};
+
+static int td028ttec1_panel_probe_pdata(struct spi_device *spi)
+{
+	const struct panel_tpo_td028ttec1_platform_data *pdata;
+	struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev);
+	struct omap_dss_device *dssdev, *in;
+
+	pdata = dev_get_platdata(&spi->dev);
+
+	in = omap_dss_find_output(pdata->source);
+	if (in == NULL) {
+		dev_err(&spi->dev, "failed to find video source '%s'\n",
+				pdata->source);
+		return -EPROBE_DEFER;
+	}
+
+	ddata->in = in;
+
+	ddata->data_lines = pdata->data_lines;
+
+	dssdev = &ddata->dssdev;
+	dssdev->name = pdata->name;
+
+	return 0;
+}
+
+static int td028ttec1_panel_probe(struct spi_device *spi)
+{
+	struct panel_drv_data *ddata;
+	struct omap_dss_device *dssdev;
+	int r;
+
+	dev_dbg(&spi->dev, "%s\n", __func__);
+
+	spi->bits_per_word = 9;
+	spi->mode = SPI_MODE_3;
+
+	r = spi_setup(spi);
+	if (r < 0) {
+		dev_err(&spi->dev, "spi_setup failed: %d\n", r);
+		return r;
+	}
+
+	ddata = devm_kzalloc(&spi->dev, sizeof(*ddata), GFP_KERNEL);
+	if (ddata == NULL)
+		return -ENOMEM;
+
+	dev_set_drvdata(&spi->dev, ddata);
+
+	ddata->spi_dev = spi;
+
+	if (dev_get_platdata(&spi->dev)) {
+		r = td028ttec1_panel_probe_pdata(spi);
+		if (r)
+			return r;
+	} else {
+		return -ENODEV;
+	}
+
+	ddata->videomode = td028ttec1_panel_timings;
+
+	dssdev = &ddata->dssdev;
+	dssdev->dev = &spi->dev;
+	dssdev->driver = &td028ttec1_ops;
+	dssdev->type = OMAP_DISPLAY_TYPE_DPI;
+	dssdev->owner = THIS_MODULE;
+	dssdev->panel.timings = ddata->videomode;
+	dssdev->phy.dpi.data_lines = ddata->data_lines;
+
+	r = omapdss_register_display(dssdev);
+	if (r) {
+		dev_err(&spi->dev, "Failed to register panel\n");
+		goto err_reg;
+	}
+
+	return 0;
+
+err_reg:
+	omap_dss_put_device(ddata->in);
+	return r;
+}
+
+static int td028ttec1_panel_remove(struct spi_device *spi)
+{
+	struct panel_drv_data *ddata = dev_get_drvdata(&spi->dev);
+	struct omap_dss_device *dssdev = &ddata->dssdev;
+	struct omap_dss_device *in = ddata->in;
+
+	dev_dbg(&ddata->spi_dev->dev, "%s\n", __func__);
+
+	omapdss_unregister_display(dssdev);
+
+	td028ttec1_panel_disable(dssdev);
+	td028ttec1_panel_disconnect(dssdev);
+
+	omap_dss_put_device(in);
+
+	return 0;
+}
+
+static struct spi_driver td028ttec1_spi_driver = {
+	.probe		= td028ttec1_panel_probe,
+	.remove		= td028ttec1_panel_remove,
+
+	.driver         = {
+		.name   = "panel-tpo-td028ttec1",
+		.owner  = THIS_MODULE,
+	},
+};
+
+module_spi_driver(td028ttec1_spi_driver);
+
+MODULE_AUTHOR("H. Nikolaus Schaller <hns@goldelico.com>");
+MODULE_DESCRIPTION("Toppoly TD028TTEC1 panel driver");
+MODULE_LICENSE("GPL");
diff --git a/include/video/omap-panel-data.h b/include/video/omap-panel-data.h
index f7ac8d972af0..69279c013ac4 100644
--- a/include/video/omap-panel-data.h
+++ b/include/video/omap-panel-data.h
@@ -238,4 +238,17 @@ struct panel_nec_nl8048hl11_platform_data {
 	int qvga_gpio;
 };
 
+/**
+ * panel-tpo-td028ttec1 platform data
+ * @name: name for display entity
+ * @source: name of the display entity used as a video source
+ * @data_lines: number of DPI datalines
+ */
+struct panel_tpo_td028ttec1_platform_data {
+	const char *name;
+	const char *source;
+
+	int data_lines;
+};
+
 #endif /* __OMAP_PANEL_DATA_H */
-- 
cgit 


From 46c34cb059d519601fb567b55cf45c300fea2928 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Thu, 17 Oct 2013 16:50:46 +0200
Subject: KVM: x86: fix KVM_SET_XCRS for CPUs that do not support XSAVE

The KVM_SET_XCRS ioctl must accept anything that KVM_GET_XCRS
could return.  XCR0's bit 0 is always 1 in real processors with
XSAVE, and KVM_GET_XCRS will always leave bit 0 set even if the
emulated processor does not have XSAVE.  So, KVM_SET_XCRS must
ignore that bit when checking for attempts to enable unsupported
save states.

Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/x86.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index ec35d09937da..296154956399 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -577,6 +577,7 @@ static void kvm_put_guest_xcr0(struct kvm_vcpu *vcpu)
 int __kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr)
 {
 	u64 xcr0;
+	u64 valid_bits;
 
 	/* Only support XCR_XFEATURE_ENABLED_MASK(xcr0) now  */
 	if (index != XCR_XFEATURE_ENABLED_MASK)
@@ -586,8 +587,16 @@ int __kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr)
 		return 1;
 	if ((xcr0 & XSTATE_YMM) && !(xcr0 & XSTATE_SSE))
 		return 1;
-	if (xcr0 & ~vcpu->arch.guest_supported_xcr0)
+
+	/*
+	 * Do not allow the guest to set bits that we do not support
+	 * saving.  However, xcr0 bit 0 is always set, even if the
+	 * emulated CPU does not support XSAVE (see fx_init).
+	 */
+	valid_bits = vcpu->arch.guest_supported_xcr0 | XSTATE_FP;
+	if (xcr0 & ~valid_bits)
 		return 1;
+
 	kvm_put_guest_xcr0(vcpu);
 	vcpu->arch.xcr0 = xcr0;
 	return 0;
-- 
cgit 


From c67a04cb9aee0d6c0b27ab8f3f68668ed6b72897 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Thu, 17 Oct 2013 16:50:47 +0200
Subject: KVM: x86: fix KVM_SET_XCRS loop

The loop was always using 0 as the index.  This means that
any rubbish after the first element of the array went undetected.
It seems reasonable to assume that no KVM userspace did that.

Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/x86.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 296154956399..6d16fc530246 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -3064,9 +3064,9 @@ static int kvm_vcpu_ioctl_x86_set_xcrs(struct kvm_vcpu *vcpu,
 
 	for (i = 0; i < guest_xcrs->nr_xcrs; i++)
 		/* Only support XCR0 currently */
-		if (guest_xcrs->xcrs[0].xcr == XCR_XFEATURE_ENABLED_MASK) {
+		if (guest_xcrs->xcrs[i].xcr == XCR_XFEATURE_ENABLED_MASK) {
 			r = __kvm_set_xcr(vcpu, XCR_XFEATURE_ENABLED_MASK,
-				guest_xcrs->xcrs[0].value);
+				guest_xcrs->xcrs[i].value);
 			break;
 		}
 	if (r)
-- 
cgit 


From 5eb1f99ea1f578ce5ce6a757a3a9795e4da8de3b Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.cz>
Date: Wed, 30 Oct 2013 12:02:27 +0100
Subject: MAINTAINERS: New kconfig maintainer

Yann has been the de facto maintainer of kconfig for some time. Update
the KCONFIG entry with his emails address and git tree.

Acked-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 MAINTAINERS | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index e61c2e83fc2b..d083982b5aea 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4723,9 +4723,10 @@ F:	Documentation/hwmon/k8temp
 F:	drivers/hwmon/k8temp.c
 
 KCONFIG
-M:	Michal Marek <mmarek@suse.cz>
+M:	"Yann E. MORIN" <yann.morin.1998@free.fr>
 L:	linux-kbuild@vger.kernel.org
-S:	Odd Fixes
+T:	git://gitorious.org/linux-kconfig/linux-kconfig
+S:	Maintained
 F:	Documentation/kbuild/kconfig-language.txt
 F:	scripts/kconfig/
 
-- 
cgit 


From 8d451442549a2696880288ba6325f9681451231b Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 31 Oct 2013 10:52:05 +0000
Subject: ARM: footbridge: fix build warnings for netwinder

arch/arm/mach-footbridge/netwinder-hw.c:695:2: warning: passing argument 1 of 'spinlock_check' from incompatible pointer type
arch/arm/mach-footbridge/netwinder-hw.c:702:2: warning: passing argument 1 of 'spin_unlock_irqrestore' from incompatible pointer type
arch/arm/mach-footbridge/netwinder-hw.c:712:2: warning: passing argument 1 of 'spinlock_check' from incompatible pointer type
arch/arm/mach-footbridge/netwinder-hw.c:714:2: warning: passing argument 1 of 'spin_unlock_irqrestore' from incompatible pointer type

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mach-footbridge/netwinder-hw.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-footbridge/netwinder-hw.c b/arch/arm/mach-footbridge/netwinder-hw.c
index 1fd2cf097e30..eb1fa5c84723 100644
--- a/arch/arm/mach-footbridge/netwinder-hw.c
+++ b/arch/arm/mach-footbridge/netwinder-hw.c
@@ -692,14 +692,14 @@ static void netwinder_led_set(struct led_classdev *cdev,
 	unsigned long flags;
 	u32 reg;
 
-	spin_lock_irqsave(&nw_gpio_lock, flags);
+	raw_spin_lock_irqsave(&nw_gpio_lock, flags);
 	reg = nw_gpio_read();
 	if (b != LED_OFF)
 		reg &= ~led->mask;
 	else
 		reg |= led->mask;
 	nw_gpio_modify_op(led->mask, reg);
-	spin_unlock_irqrestore(&nw_gpio_lock, flags);
+	raw_spin_unlock_irqrestore(&nw_gpio_lock, flags);
 }
 
 static enum led_brightness netwinder_led_get(struct led_classdev *cdev)
@@ -709,9 +709,9 @@ static enum led_brightness netwinder_led_get(struct led_classdev *cdev)
 	unsigned long flags;
 	u32 reg;
 
-	spin_lock_irqsave(&nw_gpio_lock, flags);
+	raw_spin_lock_irqsave(&nw_gpio_lock, flags);
 	reg = nw_gpio_read();
-	spin_unlock_irqrestore(&nw_gpio_lock, flags);
+	raw_spin_unlock_irqrestore(&nw_gpio_lock, flags);
 
 	return (reg & led->mask) ? LED_OFF : LED_FULL;
 }
-- 
cgit 


From 602662047594e62927202e38dde37d7fbcca4544 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Thu, 31 Oct 2013 00:34:56 +0200
Subject: kvm/vmx: error message typo fix

mst can't be blamed for lack of switch entries: the
issue is with msrs actually.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/vmx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index fabf7421ec18..e293a62a11d6 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -1498,7 +1498,7 @@ static void add_atomic_switch_msr(struct vcpu_vmx *vmx, unsigned msr,
 			break;
 
 	if (i == NR_AUTOLOAD_MSRS) {
-		printk_once(KERN_WARNING"Not enough mst switch entries. "
+		printk_once(KERN_WARNING "Not enough msr switch entries. "
 				"Can't add msr %x\n", msr);
 		return;
 	} else if (i == m->nr) {
-- 
cgit 


From e3e58478c2776287a85912b58f4e142d2e93301c Mon Sep 17 00:00:00 2001
From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Thu, 31 Oct 2013 16:16:34 +0530
Subject: MAINTAINERS: fix broken link to www.linux-kvm.org

Cc: Gleb Natapov <gleb@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 MAINTAINERS | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 72b1e5c2378a..fed84d861e7f 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4814,7 +4814,7 @@ KERNEL VIRTUAL MACHINE (KVM)
 M:	Gleb Natapov <gleb@redhat.com>
 M:	Paolo Bonzini <pbonzini@redhat.com>
 L:	kvm@vger.kernel.org
-W:	http://linux-kvm.org
+W:	http://www.linux-kvm.org
 S:	Supported
 F:	Documentation/*/kvm*.txt
 F:	Documentation/virtual/kvm/
-- 
cgit 


From 6beda1e5dd269144d836ccc76141b2cc82b296ba Mon Sep 17 00:00:00 2001
From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Thu, 31 Oct 2013 16:16:36 +0530
Subject: Documentation/kvm: add a 00-INDEX file

Cc: Gleb Natapov <gleb@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
[Some editing. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 Documentation/virtual/kvm/00-INDEX | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 Documentation/virtual/kvm/00-INDEX

diff --git a/Documentation/virtual/kvm/00-INDEX b/Documentation/virtual/kvm/00-INDEX
new file mode 100644
index 000000000000..641ec9220179
--- /dev/null
+++ b/Documentation/virtual/kvm/00-INDEX
@@ -0,0 +1,24 @@
+00-INDEX
+	- this file.
+api.txt
+	- KVM userspace API.
+cpuid.txt
+	- KVM-specific cpuid leaves (x86).
+devices/
+	- KVM_CAP_DEVICE_CTRL userspace API.
+hypercalls.txt
+	- KVM hypercalls.
+locking.txt
+	- notes on KVM locks.
+mmu.txt
+	- the x86 kvm shadow mmu.
+msr.txt
+	- KVM-specific MSRs (x86).
+nested-vmx.txt
+	- notes on nested virtualization for Intel x86 processors.
+ppc-pv.txt
+	- the paravirtualization interface on PowerPC.
+review-checklist.txt
+	- review checklist for KVM patches.
+timekeeping.txt
+	- timekeeping virtualization for x86-based architectures.
-- 
cgit 


From a94b40a630f7bb90636c375103457c053f51418e Mon Sep 17 00:00:00 2001
From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Thu, 31 Oct 2013 16:29:23 +0530
Subject: MAINTAINERS: add tree for kvm.git

Cc: Gleb Natapov <gleb@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: KVM List <kvm@vger.kernel.org>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 MAINTAINERS | 1 +
 1 file changed, 1 insertion(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index fed84d861e7f..366f90cc6fdb 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4815,6 +4815,7 @@ M:	Gleb Natapov <gleb@redhat.com>
 M:	Paolo Bonzini <pbonzini@redhat.com>
 L:	kvm@vger.kernel.org
 W:	http://www.linux-kvm.org
+T:	git git://git.kernel.org/pub/scm/virt/kvm/kvm.git
 S:	Supported
 F:	Documentation/*/kvm*.txt
 F:	Documentation/virtual/kvm/
-- 
cgit 


From f887605d25c1514b06b1a0e0477f85f27f23664d Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Mon, 28 Oct 2013 23:49:23 +0100
Subject: i2c: sh_mobile: Convert to clk_prepare/unprepare

Turn clk_enable() and clk_disable() calls into clk_prepare_enable() and
clk_disable_unprepare() to get ready for the migration to the common
clock framework.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-sh_mobile.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/busses/i2c-sh_mobile.c b/drivers/i2c/busses/i2c-sh_mobile.c
index 55110ddbed1f..1d79585ba4b3 100644
--- a/drivers/i2c/busses/i2c-sh_mobile.c
+++ b/drivers/i2c/busses/i2c-sh_mobile.c
@@ -235,7 +235,7 @@ static void sh_mobile_i2c_init(struct sh_mobile_i2c_data *pd)
 	int offset;
 
 	/* Get clock rate after clock is enabled */
-	clk_enable(pd->clk);
+	clk_prepare_enable(pd->clk);
 	i2c_clk_khz = clk_get_rate(pd->clk) / 1000;
 	i2c_clk_khz /= pd->clks_per_count;
 
@@ -270,14 +270,14 @@ static void sh_mobile_i2c_init(struct sh_mobile_i2c_data *pd)
 		pd->icic &= ~ICIC_ICCHB8;
 
 out:
-	clk_disable(pd->clk);
+	clk_disable_unprepare(pd->clk);
 }
 
 static void activate_ch(struct sh_mobile_i2c_data *pd)
 {
 	/* Wake up device and enable clock */
 	pm_runtime_get_sync(pd->dev);
-	clk_enable(pd->clk);
+	clk_prepare_enable(pd->clk);
 
 	/* Enable channel and configure rx ack */
 	iic_set_clr(pd, ICCR, ICCR_ICE, 0);
@@ -300,7 +300,7 @@ static void deactivate_ch(struct sh_mobile_i2c_data *pd)
 	iic_set_clr(pd, ICCR, 0, ICCR_ICE);
 
 	/* Disable clock and mark device as idle */
-	clk_disable(pd->clk);
+	clk_disable_unprepare(pd->clk);
 	pm_runtime_put_sync(pd->dev);
 }
 
-- 
cgit 


From 5edb1062e54cffe84b0bfa9ffdfdad337e635d7d Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Tue, 29 Oct 2013 23:37:38 +0100
Subject: i2c: sh_mobile & rcar: Enable the driver on all ARM platforms

Renesas ARM platforms are transitioning from single-platform to
multi-platform kernels using the new ARCH_SHMOBILE_MULTI. Make the
driver available on all ARM platforms to enable it on both ARCH_SHMOBILE
and ARCH_SHMOBILE_MULTI, and increase build testing coverage with
COMPILE_TEST.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index cdcbd8368ed3..7c4bb071c123 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -665,7 +665,7 @@ config I2C_SH7760
 
 config I2C_SH_MOBILE
 	tristate "SuperH Mobile I2C Controller"
-	depends on SUPERH || ARCH_SHMOBILE
+	depends on SUPERH || ARM || COMPILE_TEST
 	help
 	  If you say yes to this option, support will be included for the
 	  built-in I2C interface on the Renesas SH-Mobile processor.
@@ -768,7 +768,7 @@ config I2C_XLR
 
 config I2C_RCAR
 	tristate "Renesas R-Car I2C Controller"
-	depends on ARCH_SHMOBILE && I2C
+	depends on ARM || COMPILE_TEST
 	help
 	  If you say yes to this option, support will be included for the
 	  R-Car I2C controller.
-- 
cgit 


From 2bb9936beac2eed0c1ed907f83694bc752e159d9 Mon Sep 17 00:00:00 2001
From: Masanari Iida <standby24x7@gmail.com>
Date: Thu, 31 Oct 2013 10:57:28 +0900
Subject: doc: usb: Fix typo in Documentation/usb/gadget_configs.txt

Correct spelling typo in Documentation/usb/gadget_configs.txt

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 Documentation/usb/gadget_configfs.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Documentation/usb/gadget_configfs.txt b/Documentation/usb/gadget_configfs.txt
index 8ec2a67c39b7..4cf53e406613 100644
--- a/Documentation/usb/gadget_configfs.txt
+++ b/Documentation/usb/gadget_configfs.txt
@@ -26,7 +26,7 @@ Linux provides a number of functions for gadgets to use.
 Creating a gadget means deciding what configurations there will be
 and which functions each configuration will provide.
 
-Configfs (please see Documentation/filesystems/configfs/*) lends itslef nicely
+Configfs (please see Documentation/filesystems/configfs/*) lends itself nicely
 for the purpose of telling the kernel about the above mentioned decision.
 This document is about how to do it.
 
@@ -99,7 +99,7 @@ directories must be created:
 $ mkdir configs/<name>.<number>
 
 where <name> can be any string which is legal in a filesystem and the
-<numebr> is the configuration's number, e.g.:
+<number> is the configuration's number, e.g.:
 
 $ mkdir configs/c.1
 
@@ -327,7 +327,7 @@ from the buffer to the cs), but it is up to the implementer of the
 two functions to decide what they actually do.
 
 typedef struct configured_structure cs;
-typedef struc specific_attribute sa;
+typedef struct specific_attribute sa;
 
                                        sa
                        +----------------------------------+
-- 
cgit 


From 93dc41bdc5c853916610576c6b48a1704959c70d Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Thu, 31 Oct 2013 16:14:36 +1100
Subject: SUNRPC: close a rare race in xs_tcp_setup_socket.

We have one report of a crash in xs_tcp_setup_socket.
The call path to the crash is:

  xs_tcp_setup_socket -> inet_stream_connect -> lock_sock_nested.

The 'sock' passed to that last function is NULL.

The only way I can see this happening is a concurrent call to
xs_close:

  xs_close -> xs_reset_transport -> sock_release -> inet_release

inet_release sets:
   sock->sk = NULL;
inet_stream_connect calls
   lock_sock(sock->sk);
which gets NULL.

All calls to xs_close are protected by XPRT_LOCKED as are most
activations of the workqueue which runs xs_tcp_setup_socket.
The exception is xs_tcp_schedule_linger_timeout.

So presumably the timeout queued by the later fires exactly when some
other code runs xs_close().

To protect against this we can move the cancel_delayed_work_sync()
call from xs_destory() to xs_close().

As xs_close is never called from the worker scheduled on
->connect_worker, this can never deadlock.

Signed-off-by: NeilBrown <neilb@suse.de>
[Trond: Make it safe to call cancel_delayed_work_sync() on AF_LOCAL sockets]
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 net/sunrpc/xprtsock.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 9deed17fd3e4..a4709bbf8e5e 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -835,6 +835,8 @@ static void xs_close(struct rpc_xprt *xprt)
 
 	dprintk("RPC:       xs_close xprt %p\n", xprt);
 
+	cancel_delayed_work_sync(&transport->connect_worker);
+
 	xs_reset_transport(transport);
 	xprt->reestablish_timeout = 0;
 
@@ -869,12 +871,8 @@ static void xs_local_destroy(struct rpc_xprt *xprt)
  */
 static void xs_destroy(struct rpc_xprt *xprt)
 {
-	struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
-
 	dprintk("RPC:       xs_destroy xprt %p\n", xprt);
 
-	cancel_delayed_work_sync(&transport->connect_worker);
-
 	xs_local_destroy(xprt);
 }
 
@@ -1817,6 +1815,10 @@ static inline void xs_reclassify_socket(int family, struct socket *sock)
 }
 #endif
 
+static void xs_dummy_setup_socket(struct work_struct *work)
+{
+}
+
 static struct socket *xs_create_sock(struct rpc_xprt *xprt,
 		struct sock_xprt *transport, int family, int type, int protocol)
 {
@@ -2668,6 +2670,9 @@ static struct rpc_xprt *xs_setup_local(struct xprt_create *args)
 	xprt->ops = &xs_local_ops;
 	xprt->timeout = &xs_local_default_timeout;
 
+	INIT_DELAYED_WORK(&transport->connect_worker,
+			xs_dummy_setup_socket);
+
 	switch (sun->sun_family) {
 	case AF_LOCAL:
 		if (sun->sun_path[0] != '/') {
-- 
cgit 


From a1311d87fa034e0de580e3a65f2d5c2e7a1f55f3 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Thu, 31 Oct 2013 09:18:49 -0400
Subject: SUNRPC: Cleanup xs_destroy()

There is no longer any need for a separate xs_local_destroy() helper.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 net/sunrpc/xprtsock.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index a4709bbf8e5e..17c88928b7db 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -856,14 +856,6 @@ static void xs_tcp_close(struct rpc_xprt *xprt)
 		xs_tcp_shutdown(xprt);
 }
 
-static void xs_local_destroy(struct rpc_xprt *xprt)
-{
-	xs_close(xprt);
-	xs_free_peer_addresses(xprt);
-	xprt_free(xprt);
-	module_put(THIS_MODULE);
-}
-
 /**
  * xs_destroy - prepare to shutdown a transport
  * @xprt: doomed transport
@@ -873,7 +865,10 @@ static void xs_destroy(struct rpc_xprt *xprt)
 {
 	dprintk("RPC:       xs_destroy xprt %p\n", xprt);
 
-	xs_local_destroy(xprt);
+	xs_close(xprt);
+	xs_free_peer_addresses(xprt);
+	xprt_free(xprt);
+	module_put(THIS_MODULE);
 }
 
 static inline struct rpc_xprt *xprt_from_sock(struct sock *sk)
@@ -2513,7 +2508,7 @@ static struct rpc_xprt_ops xs_local_ops = {
 	.send_request		= xs_local_send_request,
 	.set_retrans_timeout	= xprt_set_retrans_timeout_def,
 	.close			= xs_close,
-	.destroy		= xs_local_destroy,
+	.destroy		= xs_destroy,
 	.print_stats		= xs_local_print_stats,
 };
 
-- 
cgit 


From 839e928f5bbb695c31ddc23cf3fae3cf1c9e9f20 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Tue, 29 Oct 2013 09:29:51 +0800
Subject: ACPICA: Add EXPORT_ACPI_INTERFACES macro to external interface
 modules.

For Linux, there are no functional changes/binary generation differences
introduced by this patch.

This change adds a new macro to all files that contain external ACPICA
interfaces. It can be detected and used by the host (via the host-specific
header) for any special processing required for such modules. Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/evxface.c   |  3 ++-
 drivers/acpi/acpica/evxfevnt.c  |  3 ++-
 drivers/acpi/acpica/evxfgpe.c   |  3 ++-
 drivers/acpi/acpica/evxfregn.c  |  3 ++-
 drivers/acpi/acpica/hwtimer.c   |  3 ++-
 drivers/acpi/acpica/hwxface.c   |  3 ++-
 drivers/acpi/acpica/hwxfsleep.c |  3 ++-
 drivers/acpi/acpica/nsxfeval.c  |  3 ++-
 drivers/acpi/acpica/nsxfname.c  |  3 ++-
 drivers/acpi/acpica/nsxfobj.c   |  3 ++-
 drivers/acpi/acpica/rsxface.c   |  3 ++-
 drivers/acpi/acpica/tbxface.c   |  3 ++-
 drivers/acpi/acpica/tbxfload.c  |  3 ++-
 drivers/acpi/acpica/utdebug.c   |  3 ++-
 drivers/acpi/acpica/utdecode.c  |  1 -
 drivers/acpi/acpica/utexcep.c   |  3 ++-
 drivers/acpi/acpica/utglobal.c  |  2 +-
 drivers/acpi/acpica/utxface.c   |  3 ++-
 drivers/acpi/acpica/utxferror.c |  3 ++-
 drivers/acpi/acpica/utxfinit.c  |  3 ++-
 include/acpi/platform/aclinux.h | 12 ++++++++----
 21 files changed, 45 insertions(+), 24 deletions(-)

diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c
index 6f56146a6f88..6d88b1368088 100644
--- a/drivers/acpi/acpica/evxface.c
+++ b/drivers/acpi/acpica/evxface.c
@@ -41,7 +41,8 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/export.h>
+#define EXPORT_ACPI_INTERFACES
+
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "acnamesp.h"
diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.c
index 7039606a0ba8..39d06af5e347 100644
--- a/drivers/acpi/acpica/evxfevnt.c
+++ b/drivers/acpi/acpica/evxfevnt.c
@@ -41,7 +41,8 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/export.h>
+#define EXPORT_ACPI_INTERFACES
+
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "actables.h"
diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c
index 7662f1a42ff6..fab40d9b3bd6 100644
--- a/drivers/acpi/acpica/evxfgpe.c
+++ b/drivers/acpi/acpica/evxfgpe.c
@@ -41,7 +41,8 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/export.h>
+#define EXPORT_ACPI_INTERFACES
+
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "acevents.h"
diff --git a/drivers/acpi/acpica/evxfregn.c b/drivers/acpi/acpica/evxfregn.c
index 80cecf838591..1bd3225be468 100644
--- a/drivers/acpi/acpica/evxfregn.c
+++ b/drivers/acpi/acpica/evxfregn.c
@@ -42,7 +42,8 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/export.h>
+#define EXPORT_ACPI_INTERFACES
+
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "acnamesp.h"
diff --git a/drivers/acpi/acpica/hwtimer.c b/drivers/acpi/acpica/hwtimer.c
index 2d7d22ebc782..3c498dc1636e 100644
--- a/drivers/acpi/acpica/hwtimer.c
+++ b/drivers/acpi/acpica/hwtimer.c
@@ -41,7 +41,8 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/export.h>
+#define EXPORT_ACPI_INTERFACES
+
 #include <acpi/acpi.h>
 #include "accommon.h"
 
diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c
index d3682c2ae0d1..b1568481463a 100644
--- a/drivers/acpi/acpica/hwxface.c
+++ b/drivers/acpi/acpica/hwxface.c
@@ -41,7 +41,8 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/export.h>
+#define EXPORT_ACPI_INTERFACES
+
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "acnamesp.h"
diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
index f2e669db8b65..4895fca102dd 100644
--- a/drivers/acpi/acpica/hwxfsleep.c
+++ b/drivers/acpi/acpica/hwxfsleep.c
@@ -41,7 +41,8 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/export.h>
+#define EXPORT_ACPI_INTERFACES
+
 #include <acpi/acpi.h>
 #include "accommon.h"
 
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index 481a6b4a9b2f..a6e3bca48567 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -42,7 +42,8 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/export.h>
+#define EXPORT_ACPI_INTERFACES
+
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "acnamesp.h"
diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c
index 83c164434580..3a6d78a3f64e 100644
--- a/drivers/acpi/acpica/nsxfname.c
+++ b/drivers/acpi/acpica/nsxfname.c
@@ -42,7 +42,8 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/export.h>
+#define EXPORT_ACPI_INTERFACES
+
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "acnamesp.h"
diff --git a/drivers/acpi/acpica/nsxfobj.c b/drivers/acpi/acpica/nsxfobj.c
index c0853ef294e4..94e961cf6294 100644
--- a/drivers/acpi/acpica/nsxfobj.c
+++ b/drivers/acpi/acpica/nsxfobj.c
@@ -42,7 +42,8 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/export.h>
+#define EXPORT_ACPI_INTERFACES
+
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "acnamesp.h"
diff --git a/drivers/acpi/acpica/rsxface.c b/drivers/acpi/acpica/rsxface.c
index 94e3517554f9..01e476988aae 100644
--- a/drivers/acpi/acpica/rsxface.c
+++ b/drivers/acpi/acpica/rsxface.c
@@ -41,7 +41,8 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/export.h>
+#define EXPORT_ACPI_INTERFACES
+
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "acresrc.h"
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index ad11162482ff..2ad853275e39 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -41,7 +41,8 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/export.h>
+#define EXPORT_ACPI_INTERFACES
+
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "actables.h"
diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c
index 0ba9e328d5d7..2620dbe96cfa 100644
--- a/drivers/acpi/acpica/tbxfload.c
+++ b/drivers/acpi/acpica/tbxfload.c
@@ -41,7 +41,8 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/export.h>
+#define EXPORT_ACPI_INTERFACES
+
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "acnamesp.h"
diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c
index ffd0db509d34..1a67b3944b3b 100644
--- a/drivers/acpi/acpica/utdebug.c
+++ b/drivers/acpi/acpica/utdebug.c
@@ -41,7 +41,8 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/export.h>
+#define EXPORT_ACPI_INTERFACES
+
 #include <acpi/acpi.h>
 #include "accommon.h"
 
diff --git a/drivers/acpi/acpica/utdecode.c b/drivers/acpi/acpica/utdecode.c
index 11e2e02e1618..b3f31dd89a45 100644
--- a/drivers/acpi/acpica/utdecode.c
+++ b/drivers/acpi/acpica/utdecode.c
@@ -41,7 +41,6 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/export.h>
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "acnamesp.h"
diff --git a/drivers/acpi/acpica/utexcep.c b/drivers/acpi/acpica/utexcep.c
index ff6d9e8aa842..3cf7b597edb9 100644
--- a/drivers/acpi/acpica/utexcep.c
+++ b/drivers/acpi/acpica/utexcep.c
@@ -41,8 +41,9 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
+#define EXPORT_ACPI_INTERFACES
+
 #define ACPI_DEFINE_EXCEPTION_TABLE
-#include <linux/export.h>
 #include <acpi/acpi.h>
 #include "accommon.h"
 
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index 046d5b059c07..4f59784b397d 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -41,9 +41,9 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
+#define EXPORT_ACPI_INTERFACES
 #define DEFINE_ACPI_GLOBALS
 
-#include <linux/export.h>
 #include <acpi/acpi.h>
 #include "accommon.h"
 
diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c
index 03a211e6e26a..2178da8af1a7 100644
--- a/drivers/acpi/acpica/utxface.c
+++ b/drivers/acpi/acpica/utxface.c
@@ -41,7 +41,8 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/export.h>
+#define EXPORT_ACPI_INTERFACES
+
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "acdebug.h"
diff --git a/drivers/acpi/acpica/utxferror.c b/drivers/acpi/acpica/utxferror.c
index e966a2e47b76..f7edb88f6054 100644
--- a/drivers/acpi/acpica/utxferror.c
+++ b/drivers/acpi/acpica/utxferror.c
@@ -41,7 +41,8 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/export.h>
+#define EXPORT_ACPI_INTERFACES
+
 #include <acpi/acpi.h>
 #include "accommon.h"
 
diff --git a/drivers/acpi/acpica/utxfinit.c b/drivers/acpi/acpica/utxfinit.c
index 41ebaaf8bb1a..dda18e622a93 100644
--- a/drivers/acpi/acpica/utxfinit.c
+++ b/drivers/acpi/acpica/utxfinit.c
@@ -41,7 +41,8 @@
  * POSSIBILITY OF SUCH DAMAGES.
  */
 
-#include <linux/export.h>
+#define EXPORT_ACPI_INTERFACES
+
 #include <acpi/acpi.h>
 #include "accommon.h"
 #include "acevents.h"
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index 7346a9235a4c..0e6e73c04dcb 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -74,7 +74,7 @@
 #define acpi_spinlock                       spinlock_t *
 #define acpi_cpu_flags                      unsigned long
 
-#else /* !__KERNEL__ */
+#else				/* !__KERNEL__ */
 
 #include <stdarg.h>
 #include <string.h>
@@ -102,7 +102,7 @@
 #define __cdecl
 #endif
 
-#endif /* __KERNEL__ */
+#endif				/* __KERNEL__ */
 
 /* Linux uses GCC */
 
@@ -183,6 +183,10 @@ static inline void acpi_os_free(void *a)
 	lock ? AE_OK : AE_NO_MEMORY;				\
 })
 
-#endif /* __KERNEL__ */
+#ifdef EXPORT_ACPI_INTERFACES
+#include <linux/export.h>
+#endif
+
+#endif				/* __KERNEL__ */
 
-#endif /* __ACLINUX_H__ */
+#endif				/* __ACLINUX_H__ */
-- 
cgit 


From bb1cab3d52375b5007645ca55d2b55167e5f757b Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Tue, 29 Oct 2013 09:29:57 +0800
Subject: ACPICA: Clarify ACPI_FREE_BUFFER usage.

Add a comment to clarify reason for using ACPI_FREE_BUFFER directly
instead of ACPI_FREE.

In addition to that, change one instance in which ACPI_FREE_BUFFER()
should be used instead of ACPI_FREE().

[rjw: Subject and changelog]
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/nsxfeval.c |  2 +-
 include/acpi/actypes.h         | 10 +++++++---
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index a6e3bca48567..ce2a84575a36 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -139,7 +139,7 @@ acpi_evaluate_object_typed(acpi_handle handle,
 
 		/* Caller used ACPI_ALLOCATE_BUFFER, free the return buffer */
 
-		ACPI_FREE(return_buffer->pointer);
+		ACPI_FREE_BUFFER(*return_buffer);
 		return_buffer->pointer = NULL;
 	}
 
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 63909d9c2f7a..0bb23e6bce43 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -919,9 +919,13 @@ struct acpi_buffer {
 	void *pointer;		/* pointer to buffer */
 };
 
-/* Free a buffer created in an struct acpi_buffer via ACPI_ALLOCATE_LOCAL_BUFFER */
-
-#define ACPI_FREE_BUFFER(b)         ACPI_FREE(b.pointer)
+/*
+ * Free a buffer created in an struct acpi_buffer via ACPI_ALLOCATE_BUFFER.
+ * Note: We use acpi_os_free here because acpi_os_allocate was used to allocate
+ * the buffer. This purposefully bypasses the internal allocation tracking
+ * mechanism (if it is enabled).
+ */
+#define ACPI_FREE_BUFFER(b)         acpi_os_free((b).pointer)
 
 /*
  * name_type for acpi_get_name
-- 
cgit 


From 10622bf8ce432e6a53fd3c37163e99e99c9e43ee Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Tue, 29 Oct 2013 09:30:02 +0800
Subject: ACPICA: Linuxize: Change indentation of C labels.

It is reported by kernel build test systems that all ACPICA source
files in the kernel tree have incorrect label indentation.  This
patch changes default indent option used in the release process to
fix this bug.  Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/dsargs.c    |  2 +-
 drivers/acpi/acpica/dsfield.c   |  2 +-
 drivers/acpi/acpica/dsmethod.c  |  4 ++--
 drivers/acpi/acpica/dsobject.c  |  2 +-
 drivers/acpi/acpica/dsopcode.c  |  2 +-
 drivers/acpi/acpica/dsutils.c   | 10 +++++-----
 drivers/acpi/acpica/dswexec.c   |  6 +++---
 drivers/acpi/acpica/dswload2.c  |  2 +-
 drivers/acpi/acpica/evglock.c   |  2 +-
 drivers/acpi/acpica/evgpe.c     |  2 +-
 drivers/acpi/acpica/evgpeblk.c  |  6 +++---
 drivers/acpi/acpica/evgpeinit.c |  2 +-
 drivers/acpi/acpica/evgpeutil.c |  2 +-
 drivers/acpi/acpica/evhandler.c |  4 ++--
 drivers/acpi/acpica/evregion.c  |  6 +++---
 drivers/acpi/acpica/evxface.c   | 12 ++++++------
 drivers/acpi/acpica/evxfgpe.c   |  6 +++---
 drivers/acpi/acpica/evxfregn.c  |  4 ++--
 drivers/acpi/acpica/excreate.c  |  8 ++++----
 drivers/acpi/acpica/exfield.c   |  2 +-
 drivers/acpi/acpica/exfldio.c   |  2 +-
 drivers/acpi/acpica/exmisc.c    |  4 ++--
 drivers/acpi/acpica/exoparg1.c  |  8 ++++----
 drivers/acpi/acpica/exoparg2.c  | 10 +++++-----
 drivers/acpi/acpica/exoparg3.c  |  4 ++--
 drivers/acpi/acpica/exoparg6.c  |  2 +-
 drivers/acpi/acpica/exresolv.c  |  2 +-
 drivers/acpi/acpica/exresop.c   |  2 +-
 drivers/acpi/acpica/hwregs.c    |  2 +-
 drivers/acpi/acpica/hwxface.c   |  4 ++--
 drivers/acpi/acpica/nsaccess.c  |  2 +-
 drivers/acpi/acpica/nsdump.c    |  2 +-
 drivers/acpi/acpica/nseval.c    |  4 ++--
 drivers/acpi/acpica/nsinit.c    |  2 +-
 drivers/acpi/acpica/nsload.c    |  2 +-
 drivers/acpi/acpica/nsparse.c   |  2 +-
 drivers/acpi/acpica/nspredef.c  |  2 +-
 drivers/acpi/acpica/nsprepkg.c  |  4 ++--
 drivers/acpi/acpica/nsrepair.c  |  2 +-
 drivers/acpi/acpica/nsrepair2.c |  2 +-
 drivers/acpi/acpica/nsutils.c   |  2 +-
 drivers/acpi/acpica/nsxfeval.c  | 12 ++++++------
 drivers/acpi/acpica/nsxfname.c  |  4 ++--
 drivers/acpi/acpica/nsxfobj.c   |  4 ++--
 drivers/acpi/acpica/psparse.c   |  2 +-
 drivers/acpi/acpica/psxface.c   |  6 +++---
 drivers/acpi/acpica/rsmisc.c    |  4 ++--
 drivers/acpi/acpica/rsutils.c   |  2 +-
 drivers/acpi/acpica/tbinstal.c  |  6 +++---
 drivers/acpi/acpica/tbutils.c   |  2 +-
 drivers/acpi/acpica/tbxface.c   |  4 ++--
 drivers/acpi/acpica/tbxfload.c  |  4 ++--
 drivers/acpi/acpica/utcopy.c    |  4 ++--
 drivers/acpi/acpica/utdelete.c  |  2 +-
 drivers/acpi/acpica/uteval.c    |  2 +-
 drivers/acpi/acpica/utids.c     |  2 +-
 drivers/acpi/acpica/utownerid.c |  2 +-
 drivers/acpi/acpica/utresrc.c   |  4 ++--
 drivers/acpi/acpica/utstring.c  |  4 ++--
 drivers/acpi/acpica/uttrack.c   |  2 +-
 60 files changed, 112 insertions(+), 112 deletions(-)

diff --git a/drivers/acpi/acpica/dsargs.c b/drivers/acpi/acpica/dsargs.c
index fb09b08d7080..afdc6df17abf 100644
--- a/drivers/acpi/acpica/dsargs.c
+++ b/drivers/acpi/acpica/dsargs.c
@@ -158,7 +158,7 @@ acpi_ds_execute_arguments(struct acpi_namespace_node *node,
 	walk_state->deferred_node = node;
 	status = acpi_ps_parse_aml(walk_state);
 
-      cleanup:
+cleanup:
 	acpi_ps_delete_parse_tree(op);
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/dsfield.c b/drivers/acpi/acpica/dsfield.c
index d4bfe7b7f90a..2d4c07322576 100644
--- a/drivers/acpi/acpica/dsfield.c
+++ b/drivers/acpi/acpica/dsfield.c
@@ -259,7 +259,7 @@ acpi_ds_create_buffer_field(union acpi_parse_object *op,
 		goto cleanup;
 	}
 
-      cleanup:
+cleanup:
 
 	/* Remove local reference to the object */
 
diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c
index a9ffd44c18fe..df3ea125507f 100644
--- a/drivers/acpi/acpica/dsmethod.c
+++ b/drivers/acpi/acpica/dsmethod.c
@@ -294,7 +294,7 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node,
 	obj_desc->method.thread_count++;
 	return_ACPI_STATUS(status);
 
-      cleanup:
+cleanup:
 	/* On error, must release the method mutex (if present) */
 
 	if (obj_desc->method.mutex) {
@@ -424,7 +424,7 @@ acpi_ds_call_control_method(struct acpi_thread_state *thread,
 
 	return_ACPI_STATUS(status);
 
-      cleanup:
+cleanup:
 
 	/* On error, we must terminate the method properly */
 
diff --git a/drivers/acpi/acpica/dsobject.c b/drivers/acpi/acpica/dsobject.c
index 63f0d220ca3d..b1746a68dad1 100644
--- a/drivers/acpi/acpica/dsobject.c
+++ b/drivers/acpi/acpica/dsobject.c
@@ -240,7 +240,7 @@ acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
 		return_ACPI_STATUS(status);
 	}
 
-      exit:
+exit:
 	*obj_desc_ptr = obj_desc;
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/dsopcode.c b/drivers/acpi/acpica/dsopcode.c
index 1fc1ff114f26..5205edcf2c01 100644
--- a/drivers/acpi/acpica/dsopcode.c
+++ b/drivers/acpi/acpica/dsopcode.c
@@ -257,7 +257,7 @@ acpi_ds_init_buffer_field(u16 aml_opcode,
 	    (buffer_desc->common.reference_count +
 	     obj_desc->common.reference_count);
 
-      cleanup:
+cleanup:
 
 	/* Always delete the operands */
 
diff --git a/drivers/acpi/acpica/dsutils.c b/drivers/acpi/acpica/dsutils.c
index c666fc014987..ade44e49deb4 100644
--- a/drivers/acpi/acpica/dsutils.c
+++ b/drivers/acpi/acpica/dsutils.c
@@ -299,7 +299,7 @@ acpi_ds_is_result_used(union acpi_parse_object * op,
 		goto result_used;
 	}
 
-      result_used:
+result_used:
 	ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
 			  "Result of [%s] used by Parent [%s] Op=%p\n",
 			  acpi_ps_get_opcode_name(op->common.aml_opcode),
@@ -308,7 +308,7 @@ acpi_ds_is_result_used(union acpi_parse_object * op,
 
 	return_UINT8(TRUE);
 
-      result_not_used:
+result_not_used:
 	ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH,
 			  "Result of [%s] not used by Parent [%s] Op=%p\n",
 			  acpi_ps_get_opcode_name(op->common.aml_opcode),
@@ -752,7 +752,7 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state,
 
 	return_ACPI_STATUS(status);
 
-      cleanup:
+cleanup:
 	/*
 	 * We must undo everything done above; meaning that we must
 	 * pop everything off of the operand stack and delete those
@@ -851,7 +851,7 @@ acpi_status acpi_ds_evaluate_name_path(struct acpi_walk_state *walk_state)
 		goto exit;
 	}
 
-      push_result:
+push_result:
 
 	walk_state->result_obj = new_obj_desc;
 
@@ -863,7 +863,7 @@ acpi_status acpi_ds_evaluate_name_path(struct acpi_walk_state *walk_state)
 		op->common.flags |= ACPI_PARSEOP_IN_STACK;
 	}
 
-      exit:
+exit:
 
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/dswexec.c b/drivers/acpi/acpica/dswexec.c
index 151d924817e1..1bbb22fd6fa0 100644
--- a/drivers/acpi/acpica/dswexec.c
+++ b/drivers/acpi/acpica/dswexec.c
@@ -170,7 +170,7 @@ acpi_ds_get_predicate_value(struct acpi_walk_state *walk_state,
 
 	(void)acpi_ds_do_implicit_return(local_obj_desc, walk_state, TRUE);
 
-      cleanup:
+cleanup:
 
 	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Completed a predicate eval=%X Op=%p\n",
 			  walk_state->control_state->common.value,
@@ -335,7 +335,7 @@ acpi_ds_exec_begin_op(struct acpi_walk_state *walk_state,
 
 	return_ACPI_STATUS(status);
 
-      error_exit:
+error_exit:
 	status = acpi_ds_method_error(status, walk_state);
 	return_ACPI_STATUS(status);
 }
@@ -722,7 +722,7 @@ acpi_status acpi_ds_exec_end_op(struct acpi_walk_state *walk_state)
 		walk_state->result_obj = NULL;
 	}
 
-      cleanup:
+cleanup:
 
 	if (walk_state->result_obj) {
 
diff --git a/drivers/acpi/acpica/dswload2.c b/drivers/acpi/acpica/dswload2.c
index b1f8f4725c23..7f569d573027 100644
--- a/drivers/acpi/acpica/dswload2.c
+++ b/drivers/acpi/acpica/dswload2.c
@@ -728,7 +728,7 @@ acpi_status acpi_ds_load2_end_op(struct acpi_walk_state *walk_state)
 		break;
 	}
 
-      cleanup:
+cleanup:
 
 	/* Remove the Node pushed at the very beginning */
 
diff --git a/drivers/acpi/acpica/evglock.c b/drivers/acpi/acpica/evglock.c
index fdb0a76e40a3..4c67193a9fa7 100644
--- a/drivers/acpi/acpica/evglock.c
+++ b/drivers/acpi/acpica/evglock.c
@@ -173,7 +173,7 @@ static u32 acpi_ev_global_lock_handler(void *context)
 
 	acpi_gbl_global_lock_pending = FALSE;
 
-      cleanup_and_exit:
+cleanup_and_exit:
 
 	acpi_os_release_lock(acpi_gbl_global_lock_pending_lock, flags);
 	return (ACPI_INTERRUPT_HANDLED);
diff --git a/drivers/acpi/acpica/evgpe.c b/drivers/acpi/acpica/evgpe.c
index 1979a256be3b..a9cb4a1a4bb8 100644
--- a/drivers/acpi/acpica/evgpe.c
+++ b/drivers/acpi/acpica/evgpe.c
@@ -458,7 +458,7 @@ u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info * gpe_xrupt_list)
 		gpe_block = gpe_block->next;
 	}
 
-      unlock_and_exit:
+unlock_and_exit:
 
 	acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
 	return (int_status);
diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c
index c1aa1eda26c3..a9e76bc4ad97 100644
--- a/drivers/acpi/acpica/evgpeblk.c
+++ b/drivers/acpi/acpica/evgpeblk.c
@@ -111,7 +111,7 @@ acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block,
 	gpe_block->xrupt_block = gpe_xrupt_block;
 	acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
 
-      unlock_and_exit:
+unlock_and_exit:
 	status = acpi_ut_release_mutex(ACPI_MTX_EVENTS);
 	return_ACPI_STATUS(status);
 }
@@ -178,7 +178,7 @@ acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block)
 	ACPI_FREE(gpe_block->event_info);
 	ACPI_FREE(gpe_block);
 
-      unlock_and_exit:
+unlock_and_exit:
 	status = acpi_ut_release_mutex(ACPI_MTX_EVENTS);
 	return_ACPI_STATUS(status);
 }
@@ -302,7 +302,7 @@ acpi_ev_create_gpe_info_blocks(struct acpi_gpe_block_info *gpe_block)
 
 	return_ACPI_STATUS(AE_OK);
 
-      error_exit:
+error_exit:
 	if (gpe_register_info) {
 		ACPI_FREE(gpe_register_info);
 	}
diff --git a/drivers/acpi/acpica/evgpeinit.c b/drivers/acpi/acpica/evgpeinit.c
index 7842700346a4..a3e2f38aadf6 100644
--- a/drivers/acpi/acpica/evgpeinit.c
+++ b/drivers/acpi/acpica/evgpeinit.c
@@ -203,7 +203,7 @@ acpi_status acpi_ev_gpe_initialize(void)
 		goto cleanup;
 	}
 
-      cleanup:
+cleanup:
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 	return_ACPI_STATUS(AE_OK);
 }
diff --git a/drivers/acpi/acpica/evgpeutil.c b/drivers/acpi/acpica/evgpeutil.c
index d52339090b60..d3f5e1e2a2b1 100644
--- a/drivers/acpi/acpica/evgpeutil.c
+++ b/drivers/acpi/acpica/evgpeutil.c
@@ -101,7 +101,7 @@ acpi_ev_walk_gpe_list(acpi_gpe_callback gpe_walk_callback, void *context)
 		gpe_xrupt_info = gpe_xrupt_info->next;
 	}
 
-      unlock_and_exit:
+unlock_and_exit:
 	acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/evhandler.c b/drivers/acpi/acpica/evhandler.c
index 068af96134b8..e3157313eb27 100644
--- a/drivers/acpi/acpica/evhandler.c
+++ b/drivers/acpi/acpica/evhandler.c
@@ -129,7 +129,7 @@ acpi_status acpi_ev_install_region_handlers(void)
 		}
 	}
 
-      unlock_and_exit:
+unlock_and_exit:
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 	return_ACPI_STATUS(status);
 }
@@ -531,6 +531,6 @@ acpi_ev_install_space_handler(struct acpi_namespace_node * node,
 					acpi_ev_install_handler, NULL,
 					handler_obj, NULL);
 
-      unlock_and_exit:
+unlock_and_exit:
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c
index 6293d6bb6fe1..144cbb9b73bc 100644
--- a/drivers/acpi/acpica/evregion.c
+++ b/drivers/acpi/acpica/evregion.c
@@ -573,10 +573,10 @@ acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function)
 	status = acpi_ns_evaluate(info);
 	acpi_ut_remove_reference(args[1]);
 
-      cleanup2:
+cleanup2:
 	acpi_ut_remove_reference(args[0]);
 
-      cleanup1:
+cleanup1:
 	ACPI_FREE(info);
 	return_ACPI_STATUS(status);
 }
@@ -761,7 +761,7 @@ acpi_ev_orphan_ec_reg_method(struct acpi_namespace_node *ec_device_node)
 
 	status = acpi_evaluate_object(reg_method, NULL, &args, NULL);
 
-      exit:
+exit:
 	/* We ignore all errors from above, don't care */
 
 	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c
index 6d88b1368088..23a7fadca412 100644
--- a/drivers/acpi/acpica/evxface.c
+++ b/drivers/acpi/acpica/evxface.c
@@ -375,7 +375,7 @@ acpi_status acpi_install_exception_handler(acpi_exception_handler handler)
 
 	acpi_gbl_exception_handler = handler;
 
-      cleanup:
+cleanup:
 	(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
 	return_ACPI_STATUS(status);
 }
@@ -445,12 +445,12 @@ acpi_status acpi_install_sci_handler(acpi_sci_handler address, void *context)
 	new_sci_handler->next = acpi_gbl_sci_handler_list;
 	acpi_gbl_sci_handler_list = new_sci_handler;
 
-      unlock_and_exit:
+unlock_and_exit:
 
 	acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
 	(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
 
-      exit:
+exit:
 	if (ACPI_FAILURE(status)) {
 		ACPI_FREE(new_sci_handler);
 	}
@@ -517,7 +517,7 @@ acpi_status acpi_remove_sci_handler(acpi_sci_handler address)
 	acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
 	status = AE_NOT_EXIST;
 
-      unlock_and_exit:
+unlock_and_exit:
 	(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
 	return_ACPI_STATUS(status);
 }
@@ -566,7 +566,7 @@ acpi_install_global_event_handler(acpi_gbl_event_handler handler, void *context)
 	acpi_gbl_global_event_handler = handler;
 	acpi_gbl_global_event_handler_context = context;
 
-      cleanup:
+cleanup:
 	(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
 	return_ACPI_STATUS(status);
 }
@@ -638,7 +638,7 @@ acpi_install_fixed_event_handler(u32 event,
 				  handler));
 	}
 
-      cleanup:
+cleanup:
 	(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/evxfgpe.c b/drivers/acpi/acpica/evxfgpe.c
index fab40d9b3bd6..5713da77c665 100644
--- a/drivers/acpi/acpica/evxfgpe.c
+++ b/drivers/acpi/acpica/evxfgpe.c
@@ -472,7 +472,7 @@ acpi_get_gpe_status(acpi_handle gpe_device,
 	if (gpe_event_info->flags & ACPI_GPE_DISPATCH_MASK)
 		*event_status |= ACPI_EVENT_FLAG_HANDLE;
 
-      unlock_and_exit:
+unlock_and_exit:
 	acpi_os_release_lock(acpi_gbl_gpe_lock, flags);
 	return_ACPI_STATUS(status);
 }
@@ -625,7 +625,7 @@ acpi_install_gpe_block(acpi_handle gpe_device,
 
 	obj_desc->device.gpe_block = gpe_block;
 
-      unlock_and_exit:
+unlock_and_exit:
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 	return_ACPI_STATUS(status);
 }
@@ -680,7 +680,7 @@ acpi_status acpi_remove_gpe_block(acpi_handle gpe_device)
 		obj_desc->device.gpe_block = NULL;
 	}
 
-      unlock_and_exit:
+unlock_and_exit:
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/evxfregn.c b/drivers/acpi/acpica/evxfregn.c
index 1bd3225be468..02ed75ac56cd 100644
--- a/drivers/acpi/acpica/evxfregn.c
+++ b/drivers/acpi/acpica/evxfregn.c
@@ -148,7 +148,7 @@ acpi_install_address_space_handler(acpi_handle device,
 
 	status = acpi_ev_execute_reg_methods(node, space_id);
 
-      unlock_and_exit:
+unlock_and_exit:
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 	return_ACPI_STATUS(status);
 }
@@ -287,7 +287,7 @@ acpi_remove_address_space_handler(acpi_handle device,
 
 	status = AE_NOT_EXIST;
 
-      unlock_and_exit:
+unlock_and_exit:
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/excreate.c b/drivers/acpi/acpica/excreate.c
index 269e81d86ef4..3c2e6dcdad3e 100644
--- a/drivers/acpi/acpica/excreate.c
+++ b/drivers/acpi/acpica/excreate.c
@@ -193,7 +193,7 @@ acpi_status acpi_ex_create_event(struct acpi_walk_state *walk_state)
 	    acpi_ns_attach_object((struct acpi_namespace_node *)walk_state->
 				  operands[0], obj_desc, ACPI_TYPE_EVENT);
 
-      cleanup:
+cleanup:
 	/*
 	 * Remove local reference to the object (on error, will cause deletion
 	 * of both object and semaphore if present.)
@@ -248,7 +248,7 @@ acpi_status acpi_ex_create_mutex(struct acpi_walk_state *walk_state)
 	    acpi_ns_attach_object(obj_desc->mutex.node, obj_desc,
 				  ACPI_TYPE_MUTEX);
 
-      cleanup:
+cleanup:
 	/*
 	 * Remove local reference to the object (on error, will cause deletion
 	 * of both object and semaphore if present.)
@@ -347,7 +347,7 @@ acpi_ex_create_region(u8 * aml_start,
 
 	status = acpi_ns_attach_object(node, obj_desc, ACPI_TYPE_REGION);
 
-      cleanup:
+cleanup:
 
 	/* Remove local reference to the object */
 
@@ -520,7 +520,7 @@ acpi_ex_create_method(u8 * aml_start,
 
 	acpi_ut_remove_reference(obj_desc);
 
-      exit:
+exit:
 	/* Remove a reference to the operand */
 
 	acpi_ut_remove_reference(operand[1]);
diff --git a/drivers/acpi/acpica/exfield.c b/drivers/acpi/acpica/exfield.c
index c2a65aaf29af..cfd875243421 100644
--- a/drivers/acpi/acpica/exfield.c
+++ b/drivers/acpi/acpica/exfield.c
@@ -197,7 +197,7 @@ acpi_ex_read_data_from_field(struct acpi_walk_state *walk_state,
 	status = acpi_ex_extract_from_field(obj_desc, buffer, (u32) length);
 	acpi_ex_release_global_lock(obj_desc->common_field.field_flags);
 
-      exit:
+exit:
 	if (ACPI_FAILURE(status)) {
 		acpi_ut_remove_reference(buffer_desc);
 	} else {
diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c
index 7e0afe72487e..8ab01b613a18 100644
--- a/drivers/acpi/acpica/exfldio.c
+++ b/drivers/acpi/acpica/exfldio.c
@@ -1002,7 +1002,7 @@ acpi_ex_insert_into_field(union acpi_operand_object *obj_desc,
 						mask, merged_datum,
 						field_offset);
 
-      exit:
+exit:
 	/* Free temporary buffer if we used one */
 
 	if (new_buffer) {
diff --git a/drivers/acpi/acpica/exmisc.c b/drivers/acpi/acpica/exmisc.c
index 00bf29877574..65d93607f368 100644
--- a/drivers/acpi/acpica/exmisc.c
+++ b/drivers/acpi/acpica/exmisc.c
@@ -388,7 +388,7 @@ acpi_ex_do_concatenate(union acpi_operand_object *operand0,
 
 	*actual_return_desc = return_desc;
 
-      cleanup:
+cleanup:
 	if (local_operand1 != operand1) {
 		acpi_ut_remove_reference(local_operand1);
 	}
@@ -718,7 +718,7 @@ acpi_ex_do_logical_op(u16 opcode,
 		}
 	}
 
-      cleanup:
+cleanup:
 
 	/* New object was created if implicit conversion performed - delete */
 
diff --git a/drivers/acpi/acpica/exoparg1.c b/drivers/acpi/acpica/exoparg1.c
index 2cdd41d8ade6..d74cea416ca0 100644
--- a/drivers/acpi/acpica/exoparg1.c
+++ b/drivers/acpi/acpica/exoparg1.c
@@ -115,7 +115,7 @@ acpi_status acpi_ex_opcode_0A_0T_1R(struct acpi_walk_state *walk_state)
 		break;
 	}
 
-      cleanup:
+cleanup:
 
 	/* Delete return object on error */
 
@@ -234,7 +234,7 @@ acpi_status acpi_ex_opcode_1A_1T_0R(struct acpi_walk_state *walk_state)
 		goto cleanup;
 	}
 
-      cleanup:
+cleanup:
 
 	return_ACPI_STATUS(status);
 }
@@ -551,7 +551,7 @@ acpi_status acpi_ex_opcode_1A_1T_1R(struct acpi_walk_state *walk_state)
 		status = acpi_ex_store(return_desc, operand[1], walk_state);
 	}
 
-      cleanup:
+cleanup:
 
 	/* Delete return object on error */
 
@@ -1054,7 +1054,7 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
 		goto cleanup;
 	}
 
-      cleanup:
+cleanup:
 
 	/* Delete return object on error */
 
diff --git a/drivers/acpi/acpica/exoparg2.c b/drivers/acpi/acpica/exoparg2.c
index d5088f7030c7..d6fa0fce1fc9 100644
--- a/drivers/acpi/acpica/exoparg2.c
+++ b/drivers/acpi/acpica/exoparg2.c
@@ -215,7 +215,7 @@ acpi_status acpi_ex_opcode_2A_2T_1R(struct acpi_walk_state *walk_state)
 		goto cleanup;
 	}
 
-      cleanup:
+cleanup:
 	/*
 	 * Since the remainder is not returned indirectly, remove a reference to
 	 * it. Only the quotient is returned indirectly.
@@ -445,7 +445,7 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
 		break;
 	}
 
-      store_result_to_target:
+store_result_to_target:
 
 	if (ACPI_SUCCESS(status)) {
 		/*
@@ -462,7 +462,7 @@ acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state)
 		}
 	}
 
-      cleanup:
+cleanup:
 
 	/* Delete return object on error */
 
@@ -553,7 +553,7 @@ acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state)
 		goto cleanup;
 	}
 
-      store_logical_result:
+store_logical_result:
 	/*
 	 * Set return value to according to logical_result. logical TRUE (all ones)
 	 * Default is FALSE (zero)
@@ -562,7 +562,7 @@ acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state)
 		return_desc->integer.value = ACPI_UINT64_MAX;
 	}
 
-      cleanup:
+cleanup:
 
 	/* Delete return object on error */
 
diff --git a/drivers/acpi/acpica/exoparg3.c b/drivers/acpi/acpica/exoparg3.c
index 37656f12f204..bc042adf8804 100644
--- a/drivers/acpi/acpica/exoparg3.c
+++ b/drivers/acpi/acpica/exoparg3.c
@@ -124,7 +124,7 @@ acpi_status acpi_ex_opcode_3A_0T_0R(struct acpi_walk_state *walk_state)
 		goto cleanup;
 	}
 
-      cleanup:
+cleanup:
 
 	return_ACPI_STATUS(status);
 }
@@ -252,7 +252,7 @@ acpi_status acpi_ex_opcode_3A_1T_1R(struct acpi_walk_state *walk_state)
 
 	status = acpi_ex_store(return_desc, operand[3], walk_state);
 
-      cleanup:
+cleanup:
 
 	/* Delete return object on error */
 
diff --git a/drivers/acpi/acpica/exoparg6.c b/drivers/acpi/acpica/exoparg6.c
index 879b6cd8319c..4459e32c683d 100644
--- a/drivers/acpi/acpica/exoparg6.c
+++ b/drivers/acpi/acpica/exoparg6.c
@@ -314,7 +314,7 @@ acpi_status acpi_ex_opcode_6A_0T_1R(struct acpi_walk_state * walk_state)
 		goto cleanup;
 	}
 
-      cleanup:
+cleanup:
 
 	/* Delete return object on error */
 
diff --git a/drivers/acpi/acpica/exresolv.c b/drivers/acpi/acpica/exresolv.c
index ac04278ad28f..1606524312e3 100644
--- a/drivers/acpi/acpica/exresolv.c
+++ b/drivers/acpi/acpica/exresolv.c
@@ -521,7 +521,7 @@ acpi_ex_resolve_multiple(struct acpi_walk_state *walk_state,
 	 */
 	type = obj_desc->common.type;
 
-      exit:
+exit:
 	/* Convert internal types to external types */
 
 	switch (type) {
diff --git a/drivers/acpi/acpica/exresop.c b/drivers/acpi/acpica/exresop.c
index 00e5af7129c1..be3f66973ee8 100644
--- a/drivers/acpi/acpica/exresop.c
+++ b/drivers/acpi/acpica/exresop.c
@@ -683,7 +683,7 @@ acpi_ex_resolve_operands(u16 opcode,
 			return_ACPI_STATUS(status);
 		}
 
-	      next_operand:
+next_operand:
 		/*
 		 * If more operands needed, decrement stack_ptr to point
 		 * to next operand on stack
diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c
index 8d2e866be15f..12e6cff54f78 100644
--- a/drivers/acpi/acpica/hwregs.c
+++ b/drivers/acpi/acpica/hwregs.c
@@ -560,7 +560,7 @@ acpi_status acpi_hw_register_write(u32 register_id, u32 value)
 		break;
 	}
 
-      exit:
+exit:
 	return_ACPI_STATUS(status);
 }
 
diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c
index b1568481463a..b4b47db2dee2 100644
--- a/drivers/acpi/acpica/hwxface.c
+++ b/drivers/acpi/acpica/hwxface.c
@@ -570,10 +570,10 @@ acpi_get_sleep_type_data(u8 sleep_state, u8 *sleep_type_a, u8 *sleep_type_b)
 		break;
 	}
 
-      cleanup1:
+cleanup1:
 	acpi_ut_remove_reference(info->return_object);
 
-      cleanup:
+cleanup:
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status,
 				"While evaluating Sleep State [%s]",
diff --git a/drivers/acpi/acpica/nsaccess.c b/drivers/acpi/acpica/nsaccess.c
index aff79c7392ff..14f65f6345b9 100644
--- a/drivers/acpi/acpica/nsaccess.c
+++ b/drivers/acpi/acpica/nsaccess.c
@@ -240,7 +240,7 @@ acpi_status acpi_ns_root_initialize(void)
 		}
 	}
 
-      unlock_and_exit:
+unlock_and_exit:
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 
 	/* Save a handle to "_GPE", it is always present */
diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c
index c6348545277e..48b9c6f12643 100644
--- a/drivers/acpi/acpica/nsdump.c
+++ b/drivers/acpi/acpica/nsdump.c
@@ -620,7 +620,7 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
 		obj_type = ACPI_TYPE_INVALID;	/* Terminate loop after next pass */
 	}
 
-      cleanup:
+cleanup:
 	acpi_os_printf("\n");
 	return (AE_OK);
 }
diff --git a/drivers/acpi/acpica/nseval.c b/drivers/acpi/acpica/nseval.c
index 18108bc2e51c..963ceef063f8 100644
--- a/drivers/acpi/acpica/nseval.c
+++ b/drivers/acpi/acpica/nseval.c
@@ -314,7 +314,7 @@ acpi_status acpi_ns_evaluate(struct acpi_evaluate_info *info)
 			  "*** Completed evaluation of object %s ***\n",
 			  info->relative_pathname));
 
- cleanup:
+cleanup:
 	/*
 	 * Namespace was unlocked by the handling acpi_ns* function, so we
 	 * just free the pathname and return
@@ -486,7 +486,7 @@ acpi_ns_exec_module_code(union acpi_operand_object *method_obj,
 		parent_node->type = (u8)type;
 	}
 
-      exit:
+exit:
 	if (parent_obj) {
 		acpi_ut_remove_reference(parent_obj);
 	}
diff --git a/drivers/acpi/acpica/nsinit.c b/drivers/acpi/acpica/nsinit.c
index dd2ceae3f717..3a0423af968c 100644
--- a/drivers/acpi/acpica/nsinit.c
+++ b/drivers/acpi/acpica/nsinit.c
@@ -213,7 +213,7 @@ acpi_status acpi_ns_initialize_devices(void)
 
 	return_ACPI_STATUS(status);
 
-      error_exit:
+error_exit:
 	ACPI_EXCEPTION((AE_INFO, status, "During device initialization"));
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/nsload.c b/drivers/acpi/acpica/nsload.c
index 0a7badc3179f..89ec645e7730 100644
--- a/drivers/acpi/acpica/nsload.c
+++ b/drivers/acpi/acpica/nsload.c
@@ -114,7 +114,7 @@ acpi_ns_load_table(u32 table_index, struct acpi_namespace_node *node)
 		(void)acpi_tb_release_owner_id(table_index);
 	}
 
-      unlock:
+unlock:
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 
 	if (ACPI_FAILURE(status)) {
diff --git a/drivers/acpi/acpica/nsparse.c b/drivers/acpi/acpica/nsparse.c
index 35dde8151c0d..177857340271 100644
--- a/drivers/acpi/acpica/nsparse.c
+++ b/drivers/acpi/acpica/nsparse.c
@@ -140,7 +140,7 @@ acpi_ns_one_complete_parse(u32 pass_number,
 			  pass_number));
 	status = acpi_ps_parse_aml(walk_state);
 
-      cleanup:
+cleanup:
 	acpi_ps_delete_parse_tree(parse_root);
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/nspredef.c b/drivers/acpi/acpica/nspredef.c
index 098e7666cbc9..d2855d9857c4 100644
--- a/drivers/acpi/acpica/nspredef.c
+++ b/drivers/acpi/acpica/nspredef.c
@@ -271,7 +271,7 @@ acpi_ns_check_object_type(struct acpi_evaluate_info *info,
 		return (AE_OK);	/* Successful repair */
 	}
 
-      type_error_exit:
+type_error_exit:
 
 	/* Create a string with all expected types for this predefined object */
 
diff --git a/drivers/acpi/acpica/nsprepkg.c b/drivers/acpi/acpica/nsprepkg.c
index 6d55cef7916c..3d5391f9bcb5 100644
--- a/drivers/acpi/acpica/nsprepkg.c
+++ b/drivers/acpi/acpica/nsprepkg.c
@@ -330,7 +330,7 @@ acpi_ns_check_package(struct acpi_evaluate_info *info,
 
 	return (status);
 
-      package_too_small:
+package_too_small:
 
 	/* Error exit for the case with an incorrect package count */
 
@@ -555,7 +555,7 @@ acpi_ns_check_package_list(struct acpi_evaluate_info *info,
 
 	return (AE_OK);
 
-      package_too_small:
+package_too_small:
 
 	/* The sub-package count was smaller than required */
 
diff --git a/drivers/acpi/acpica/nsrepair.c b/drivers/acpi/acpica/nsrepair.c
index f8e71ea60319..a05afff50eb9 100644
--- a/drivers/acpi/acpica/nsrepair.c
+++ b/drivers/acpi/acpica/nsrepair.c
@@ -263,7 +263,7 @@ acpi_ns_simple_repair(struct acpi_evaluate_info *info,
 
 	return (AE_AML_OPERAND_TYPE);
 
-      object_repaired:
+object_repaired:
 
 	/* Object was successfully repaired */
 
diff --git a/drivers/acpi/acpica/nsrepair2.c b/drivers/acpi/acpica/nsrepair2.c
index c84603ee83ae..6a25d320b169 100644
--- a/drivers/acpi/acpica/nsrepair2.c
+++ b/drivers/acpi/acpica/nsrepair2.c
@@ -478,7 +478,7 @@ acpi_ns_repair_CST(struct acpi_evaluate_info *info,
 			removing = TRUE;
 		}
 
-	      remove_element:
+remove_element:
 		if (removing) {
 			acpi_ns_remove_element(return_object, i + 1);
 			outer_element_count--;
diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index 08c0b5beec88..cc2fea94c5f0 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -722,7 +722,7 @@ acpi_ns_get_node(struct acpi_namespace_node *prefix_node,
 
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 
-      cleanup:
+cleanup:
 	ACPI_FREE(internal_path);
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c
index ce2a84575a36..e973e311f856 100644
--- a/drivers/acpi/acpica/nsxfeval.c
+++ b/drivers/acpi/acpica/nsxfeval.c
@@ -442,7 +442,7 @@ acpi_evaluate_object(acpi_handle handle,
 		acpi_ex_exit_interpreter();
 	}
 
-      cleanup:
+cleanup:
 
 	/* Free the input parameter list (if we created one) */
 
@@ -618,10 +618,10 @@ acpi_walk_namespace(acpi_object_type type,
 					descending_callback, ascending_callback,
 					context, return_value);
 
-      unlock_and_exit2:
+unlock_and_exit2:
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 
-      unlock_and_exit:
+unlock_and_exit:
 	(void)acpi_ut_release_read_lock(&acpi_gbl_namespace_rw_lock);
 	return_ACPI_STATUS(status);
 }
@@ -865,7 +865,7 @@ acpi_attach_data(acpi_handle obj_handle,
 
 	status = acpi_ns_attach_data(node, handler, data);
 
-      unlock_and_exit:
+unlock_and_exit:
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 	return (status);
 }
@@ -911,7 +911,7 @@ acpi_detach_data(acpi_handle obj_handle, acpi_object_handler handler)
 
 	status = acpi_ns_detach_data(node, handler);
 
-      unlock_and_exit:
+unlock_and_exit:
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 	return (status);
 }
@@ -958,7 +958,7 @@ acpi_get_data(acpi_handle obj_handle, acpi_object_handler handler, void **data)
 
 	status = acpi_ns_get_attached_data(node, handler, data);
 
-      unlock_and_exit:
+unlock_and_exit:
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 	return (status);
 }
diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c
index 3a6d78a3f64e..3a4bd3ff49a3 100644
--- a/drivers/acpi/acpica/nsxfname.c
+++ b/drivers/acpi/acpica/nsxfname.c
@@ -209,7 +209,7 @@ acpi_get_name(acpi_handle handle, u32 name_type, struct acpi_buffer * buffer)
 	((char *)buffer->pointer)[ACPI_NAME_SIZE] = 0;
 	status = AE_OK;
 
-      unlock_and_exit:
+unlock_and_exit:
 
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 	return (status);
@@ -497,7 +497,7 @@ acpi_get_object_info(acpi_handle handle,
 	*return_buffer = info;
 	status = AE_OK;
 
-      cleanup:
+cleanup:
 	if (hid) {
 		ACPI_FREE(hid);
 	}
diff --git a/drivers/acpi/acpica/nsxfobj.c b/drivers/acpi/acpica/nsxfobj.c
index 94e961cf6294..0e6d79e462d4 100644
--- a/drivers/acpi/acpica/nsxfobj.c
+++ b/drivers/acpi/acpica/nsxfobj.c
@@ -201,7 +201,7 @@ acpi_status acpi_get_parent(acpi_handle handle, acpi_handle * ret_handle)
 		status = AE_NULL_ENTRY;
 	}
 
-      unlock_and_exit:
+unlock_and_exit:
 
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 	return (status);
@@ -281,7 +281,7 @@ acpi_get_next_object(acpi_object_type type,
 		*ret_handle = ACPI_CAST_PTR(acpi_handle, node);
 	}
 
-      unlock_and_exit:
+unlock_and_exit:
 
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 	return (status);
diff --git a/drivers/acpi/acpica/psparse.c b/drivers/acpi/acpica/psparse.c
index 86198a9139b5..79d9a28dedef 100644
--- a/drivers/acpi/acpica/psparse.c
+++ b/drivers/acpi/acpica/psparse.c
@@ -297,7 +297,7 @@ acpi_ps_complete_this_op(struct acpi_walk_state * walk_state,
 			}
 	}
 
-      cleanup:
+cleanup:
 
 	/* Now we can actually delete the subtree rooted at Op */
 
diff --git a/drivers/acpi/acpica/psxface.c b/drivers/acpi/acpica/psxface.c
index 11b99ab20bb3..fcb7a840e996 100644
--- a/drivers/acpi/acpica/psxface.c
+++ b/drivers/acpi/acpica/psxface.c
@@ -142,7 +142,7 @@ static void acpi_ps_start_trace(struct acpi_evaluate_info *info)
 		acpi_dbg_layer = acpi_gbl_trace_dbg_layer;
 	}
 
-      exit:
+exit:
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 }
 
@@ -185,7 +185,7 @@ static void acpi_ps_stop_trace(struct acpi_evaluate_info *info)
 	acpi_dbg_level = acpi_gbl_original_dbg_level;
 	acpi_dbg_layer = acpi_gbl_original_dbg_layer;
 
-      exit:
+exit:
 	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
 }
 
@@ -323,7 +323,7 @@ acpi_status acpi_ps_execute_method(struct acpi_evaluate_info *info)
 
 	/* walk_state was deleted by parse_aml */
 
-      cleanup:
+cleanup:
 	acpi_ps_delete_parse_tree(op);
 
 	/* End optional tracing */
diff --git a/drivers/acpi/acpica/rsmisc.c b/drivers/acpi/acpica/rsmisc.c
index 80d12994e0d0..c99cec9cefde 100644
--- a/drivers/acpi/acpica/rsmisc.c
+++ b/drivers/acpi/acpica/rsmisc.c
@@ -440,7 +440,7 @@ acpi_rs_convert_aml_to_resource(struct acpi_resource *resource,
 		info++;
 	}
 
-      exit:
+exit:
 	if (!flags_mode) {
 
 		/* Round the resource struct length up to the next boundary (32 or 64) */
@@ -783,7 +783,7 @@ acpi_rs_convert_resource_to_aml(struct acpi_resource *resource,
 		info++;
 	}
 
-      exit:
+exit:
 	return_ACPI_STATUS(AE_OK);
 }
 
diff --git a/drivers/acpi/acpica/rsutils.c b/drivers/acpi/acpica/rsutils.c
index 480b6b40c5ea..aef303d56d86 100644
--- a/drivers/acpi/acpica/rsutils.c
+++ b/drivers/acpi/acpica/rsutils.c
@@ -784,7 +784,7 @@ acpi_rs_set_srs_method_data(struct acpi_namespace_node *node,
 
 	acpi_ut_remove_reference(args[0]);
 
-      cleanup:
+cleanup:
 	ACPI_FREE(info);
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c
index 9e6788f9ba0f..634357d51fe9 100644
--- a/drivers/acpi/acpica/tbinstal.c
+++ b/drivers/acpi/acpica/tbinstal.c
@@ -231,10 +231,10 @@ acpi_tb_add_table(struct acpi_table_desc *table_desc, u32 *table_index)
 		goto release;
 	}
 
-      print_header:
+print_header:
 	acpi_tb_print_table_header(table_desc->address, table_desc->pointer);
 
-      release:
+release:
 	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
 	return_ACPI_STATUS(status);
 }
@@ -306,7 +306,7 @@ struct acpi_table_header *acpi_tb_table_override(struct acpi_table_header
 
 	return (NULL);		/* There was no override */
 
-      finish_override:
+finish_override:
 
 	ACPI_INFO((AE_INFO,
 		   "%4.4s %p %s table override, new table: %p",
diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c
index bffdfc7b8322..43ffe21c7b26 100644
--- a/drivers/acpi/acpica/tbutils.c
+++ b/drivers/acpi/acpica/tbutils.c
@@ -350,7 +350,7 @@ acpi_tb_install_table(acpi_physical_address address,
 		acpi_tb_delete_table(table_desc);
 	}
 
-      unmap_and_exit:
+unmap_and_exit:
 
 	/* Always unmap the table header that we mapped above */
 
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index 2ad853275e39..bbaad5c4e2cd 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -466,7 +466,7 @@ acpi_install_table_handler(acpi_table_handler handler, void *context)
 	acpi_gbl_table_handler = handler;
 	acpi_gbl_table_handler_context = context;
 
-      cleanup:
+cleanup:
 	(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
 	return_ACPI_STATUS(status);
 }
@@ -507,7 +507,7 @@ acpi_status acpi_remove_table_handler(acpi_table_handler handler)
 
 	acpi_gbl_table_handler = NULL;
 
-      cleanup:
+cleanup:
 	(void)acpi_ut_release_mutex(ACPI_MTX_EVENTS);
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c
index 2620dbe96cfa..5a2202495b0f 100644
--- a/drivers/acpi/acpica/tbxfload.c
+++ b/drivers/acpi/acpica/tbxfload.c
@@ -201,7 +201,7 @@ static acpi_status acpi_tb_load_namespace(void)
 
 	ACPI_INFO((AE_INFO, "All ACPI Tables successfully acquired"));
 
-      unlock_and_exit:
+unlock_and_exit:
 	(void)acpi_ut_release_mutex(ACPI_MTX_TABLES);
 	return_ACPI_STATUS(status);
 }
@@ -269,7 +269,7 @@ acpi_status acpi_load_table(struct acpi_table_header *table)
 					     acpi_gbl_table_handler_context);
 	}
 
-      unlock_and_exit:
+unlock_and_exit:
 	(void)acpi_ut_release_mutex(ACPI_MTX_INTERPRETER);
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/utcopy.c b/drivers/acpi/acpica/utcopy.c
index 1731c27c36a6..edff4e653d9a 100644
--- a/drivers/acpi/acpica/utcopy.c
+++ b/drivers/acpi/acpica/utcopy.c
@@ -552,7 +552,7 @@ acpi_ut_copy_esimple_to_isimple(union acpi_object *external_object,
 	*ret_internal_object = internal_object;
 	return_ACPI_STATUS(AE_OK);
 
-      error_exit:
+error_exit:
 	acpi_ut_remove_reference(internal_object);
 	return_ACPI_STATUS(AE_NO_MEMORY);
 }
@@ -899,7 +899,7 @@ acpi_ut_copy_ielement_to_ielement(u8 object_type,
 
 	return (status);
 
-      error_exit:
+error_exit:
 	acpi_ut_remove_reference(target_object);
 	return (status);
 }
diff --git a/drivers/acpi/acpica/utdelete.c b/drivers/acpi/acpica/utdelete.c
index d6b33f29d327..c07d2227ea42 100644
--- a/drivers/acpi/acpica/utdelete.c
+++ b/drivers/acpi/acpica/utdelete.c
@@ -649,7 +649,7 @@ acpi_ut_update_object_reference(union acpi_operand_object *object, u16 action)
 
 	return (AE_OK);
 
-      error_exit:
+error_exit:
 
 	ACPI_EXCEPTION((AE_INFO, status,
 			"Could not update object reference count"));
diff --git a/drivers/acpi/acpica/uteval.c b/drivers/acpi/acpica/uteval.c
index 4fd68971019b..16fb90506db7 100644
--- a/drivers/acpi/acpica/uteval.c
+++ b/drivers/acpi/acpica/uteval.c
@@ -181,7 +181,7 @@ acpi_ut_evaluate_object(struct acpi_namespace_node *prefix_node,
 
 	*return_desc = info->return_object;
 
-      cleanup:
+cleanup:
 	ACPI_FREE(info);
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/utids.c b/drivers/acpi/acpica/utids.c
index fa69071db418..bfca7b4b6731 100644
--- a/drivers/acpi/acpica/utids.c
+++ b/drivers/acpi/acpica/utids.c
@@ -184,7 +184,7 @@ acpi_ut_execute_SUB(struct acpi_namespace_node *device_node,
 	sub->length = length;
 	*return_id = sub;
 
-      cleanup:
+cleanup:
 
 	/* On exit, we must delete the return object */
 
diff --git a/drivers/acpi/acpica/utownerid.c b/drivers/acpi/acpica/utownerid.c
index 835340b26d37..eb3aca761369 100644
--- a/drivers/acpi/acpica/utownerid.c
+++ b/drivers/acpi/acpica/utownerid.c
@@ -148,7 +148,7 @@ acpi_status acpi_ut_allocate_owner_id(acpi_owner_id * owner_id)
 	ACPI_ERROR((AE_INFO,
 		    "Could not allocate new OwnerId (255 max), AE_OWNER_ID_LIMIT"));
 
-      exit:
+exit:
 	(void)acpi_ut_release_mutex(ACPI_MTX_CACHES);
 	return_ACPI_STATUS(status);
 }
diff --git a/drivers/acpi/acpica/utresrc.c b/drivers/acpi/acpica/utresrc.c
index cb7fa491decf..2c2accb9e534 100644
--- a/drivers/acpi/acpica/utresrc.c
+++ b/drivers/acpi/acpica/utresrc.c
@@ -643,7 +643,7 @@ acpi_ut_validate_resource(struct acpi_walk_state *walk_state,
 
 	return (AE_OK);
 
-      invalid_resource:
+invalid_resource:
 
 	if (walk_state) {
 		ACPI_ERROR((AE_INFO,
@@ -652,7 +652,7 @@ acpi_ut_validate_resource(struct acpi_walk_state *walk_state,
 	}
 	return (AE_AML_INVALID_RESOURCE_TYPE);
 
-      bad_resource_length:
+bad_resource_length:
 
 	if (walk_state) {
 		ACPI_ERROR((AE_INFO,
diff --git a/drivers/acpi/acpica/utstring.c b/drivers/acpi/acpica/utstring.c
index 5ef41ffcf575..45c0eb26b33d 100644
--- a/drivers/acpi/acpica/utstring.c
+++ b/drivers/acpi/acpica/utstring.c
@@ -310,7 +310,7 @@ acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer)
 
 	/* All done, normal exit */
 
-      all_done:
+all_done:
 
 	ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "Converted value: %8.8X%8.8X\n",
 			  ACPI_FORMAT_UINT64(return_value)));
@@ -318,7 +318,7 @@ acpi_status acpi_ut_strtoul64(char *string, u32 base, u64 *ret_integer)
 	*ret_integer = return_value;
 	return_ACPI_STATUS(AE_OK);
 
-      error_exit:
+error_exit:
 	/* Base was set/validated above */
 
 	if (base == 10) {
diff --git a/drivers/acpi/acpica/uttrack.c b/drivers/acpi/acpica/uttrack.c
index 77e3eb7d7c04..c0027773cccb 100644
--- a/drivers/acpi/acpica/uttrack.c
+++ b/drivers/acpi/acpica/uttrack.c
@@ -430,7 +430,7 @@ acpi_ut_track_allocation(struct acpi_debug_mem_block *allocation,
 		element->next = allocation;
 	}
 
-      unlock_and_exit:
+unlock_and_exit:
 	status = acpi_ut_release_mutex(ACPI_MTX_MEMORY);
 	return_ACPI_STATUS(status);
 }
-- 
cgit 


From d21f600b0e4d5a694a338688e61d95f08dbf0afb Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Tue, 29 Oct 2013 09:30:10 +0800
Subject: ACPICA: Deploy ACPI_EXPORT_SYMBOL_INIT for main ACPICA initialization
 interfaces.

This changes can reduce source code differences between Linux and ACPICA
upstream to help improving the release automation.

The side effect of applying this patch in Linux is:
1. Some ACPICA initialization/termination APIs are no longer exported in
   Linux, these include:
    acpi_load_tables
    acpi_initialize_subsystem
    acpi_enable_subsystem
    acpi_initialize_objects
    acpi_terminate
2. This patch does not affect the following APIs as they are currently not
   marked with ACPI_EXPORT_SYMBOL in Linux:
    acpi_reallocate_root_table
    acpi_initialize_tables
Such functions should not be exported as they are internal to ACPI
subsystem in Linux, and will only be invoked inside of ACPI subsystem's
initialization routines marked with __init and termination routines marked
with __exit.  While on other OSPMs, such functions may still need to be
exported.

Thus this patch adds the configurability for ACPICA, so that it leaves
OSPMs to determine if the __init/__exit marked functions should be exported
or not.  Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/tbxface.c  |  7 ++++++-
 drivers/acpi/acpica/tbxfload.c |  2 +-
 drivers/acpi/acpica/utxface.c  |  2 +-
 drivers/acpi/acpica/utxfinit.c |  9 ++++++---
 include/acpi/actypes.h         | 13 +++++++++++--
 5 files changed, 25 insertions(+), 8 deletions(-)

diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index bbaad5c4e2cd..7e63090742dc 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -148,6 +148,8 @@ acpi_initialize_tables(struct acpi_table_desc * initial_table_array,
 	return_ACPI_STATUS(status);
 }
 
+ACPI_EXPORT_SYMBOL_INIT(acpi_initialize_tables)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_reallocate_root_table
@@ -182,6 +184,8 @@ acpi_status acpi_reallocate_root_table(void)
 	return_ACPI_STATUS(status);
 }
 
+ACPI_EXPORT_SYMBOL_INIT(acpi_reallocate_root_table)
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_get_table_header
@@ -357,6 +361,7 @@ acpi_get_table_with_size(char *signature,
 
 	return (AE_NOT_FOUND);
 }
+
 ACPI_EXPORT_SYMBOL(acpi_get_table_with_size)
 
 acpi_status
@@ -368,6 +373,7 @@ acpi_get_table(char *signature,
 	return acpi_get_table_with_size(signature,
 		       instance, out_table, &tbl_size);
 }
+
 ACPI_EXPORT_SYMBOL(acpi_get_table)
 
 /*******************************************************************************
@@ -425,7 +431,6 @@ acpi_get_table_by_index(u32 table_index, struct acpi_table_header **table)
 
 ACPI_EXPORT_SYMBOL(acpi_get_table_by_index)
 
-
 /*******************************************************************************
  *
  * FUNCTION:    acpi_install_table_handler
diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c
index 5a2202495b0f..b1e1edd5703a 100644
--- a/drivers/acpi/acpica/tbxfload.c
+++ b/drivers/acpi/acpica/tbxfload.c
@@ -83,7 +83,7 @@ acpi_status acpi_load_tables(void)
 	return_ACPI_STATUS(status);
 }
 
-ACPI_EXPORT_SYMBOL(acpi_load_tables)
+ACPI_EXPORT_SYMBOL_INIT(acpi_load_tables)
 
 /*******************************************************************************
  *
diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c
index 2178da8af1a7..891a37b69d3c 100644
--- a/drivers/acpi/acpica/utxface.c
+++ b/drivers/acpi/acpica/utxface.c
@@ -105,7 +105,7 @@ acpi_status acpi_terminate(void)
 	return_ACPI_STATUS(status);
 }
 
-ACPI_EXPORT_SYMBOL(acpi_terminate)
+ACPI_EXPORT_SYMBOL_INIT(acpi_terminate)
 
 #ifndef ACPI_ASL_COMPILER
 #ifdef ACPI_FUTURE_USAGE
diff --git a/drivers/acpi/acpica/utxfinit.c b/drivers/acpi/acpica/utxfinit.c
index dda18e622a93..ff6f4d194136 100644
--- a/drivers/acpi/acpica/utxfinit.c
+++ b/drivers/acpi/acpica/utxfinit.c
@@ -125,7 +125,8 @@ acpi_status acpi_initialize_subsystem(void)
 	ACPI_DEBUGGER_EXEC(status = acpi_db_initialize());
 	return_ACPI_STATUS(status);
 }
-ACPI_EXPORT_SYMBOL(acpi_initialize_subsystem)
+
+ACPI_EXPORT_SYMBOL_INIT(acpi_initialize_subsystem)
 
 /*******************************************************************************
  *
@@ -229,7 +230,8 @@ acpi_status acpi_enable_subsystem(u32 flags)
 
 	return_ACPI_STATUS(status);
 }
-ACPI_EXPORT_SYMBOL(acpi_enable_subsystem)
+
+ACPI_EXPORT_SYMBOL_INIT(acpi_enable_subsystem)
 
 /*******************************************************************************
  *
@@ -315,4 +317,5 @@ acpi_status acpi_initialize_objects(u32 flags)
 	acpi_gbl_startup_flags |= ACPI_INITIALIZED_OK;
 	return_ACPI_STATUS(status);
 }
-ACPI_EXPORT_SYMBOL(acpi_initialize_objects)
+
+ACPI_EXPORT_SYMBOL_INIT(acpi_initialize_objects)
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 0bb23e6bce43..8614bc139113 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -299,9 +299,18 @@ typedef u32 acpi_physical_address;
 #endif
 
 /*
- * All ACPICA functions that are available to the rest of the kernel are
- * tagged with this macro which can be defined as appropriate for the host.
+ * All ACPICA external functions that are available to the rest of the kernel
+ * are tagged with thes macros which can be defined as appropriate for the host.
+ *
+ * Notes:
+ * ACPI_EXPORT_SYMBOL_INIT is used for initialization and termination
+ * interfaces that may need special processing.
+ * ACPI_EXPORT_SYMBOL is used for all other public external functions.
  */
+#ifndef ACPI_EXPORT_SYMBOL_INIT
+#define ACPI_EXPORT_SYMBOL_INIT(symbol)
+#endif
+
 #ifndef ACPI_EXPORT_SYMBOL
 #define ACPI_EXPORT_SYMBOL(symbol)
 #endif
-- 
cgit 


From 4506bf2329cab39d41f027cdccb1cf455de2bf79 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Tue, 29 Oct 2013 09:30:16 +0800
Subject: ACPICA: Prevent possible build issues for use of ACPI_PRINTF_LIKE
 macro

The following build error:
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   CC      arch/x86/kernel/setup.o
 In file included from include/acpi/acpi.h:64:0,
                  from include/linux/iscsi_ibft.h:24,
                  from arch/x86/kernel/setup.c:43:
 include/acpi/acpixf.h:543:1: error: expected ',' or ';' before '{' token
 include/acpi/acpixf.h:540:1: warning: 'acpi_error' declared 'static' but never defined [-Wunused-function]
 make[2]: *** [arch/x86/kernel/setup.o] Error 1
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
can be triggerred by the following stub function (if implemented):
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 static inline void ACPI_INTERNAL_VAR_XFACE
 acpi_error(const char *module_name,
 	   u32 line_number, const char *format, ...) ACPI_PRINTF_LIKE(3)
 {
 }
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

This patch changes the position of ACPI_PRINTF_LIKE(x) to follow the
style of __printf(x, x+1) used in Linux to prevent such issues from
happening.  Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/acpi/acpixf.h | 29 ++++++++++++++++-------------
 1 file changed, 16 insertions(+), 13 deletions(-)

diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index ddde61b43041..9759bd5f4777 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -530,50 +530,53 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 /*
  * Error/Warning output
  */
+ACPI_PRINTF_LIKE(3)
 void ACPI_INTERNAL_VAR_XFACE
-acpi_error(const char *module_name,
-	   u32 line_number, const char *format, ...) ACPI_PRINTF_LIKE(3);
+acpi_error(const char *module_name, u32 line_number, const char *format, ...);
 
+ACPI_PRINTF_LIKE(4)
 void ACPI_INTERNAL_VAR_XFACE
 acpi_exception(const char *module_name,
-	       u32 line_number,
-	       acpi_status status, const char *format, ...) ACPI_PRINTF_LIKE(4);
+	       u32 line_number, acpi_status status, const char *format, ...);
 
+ACPI_PRINTF_LIKE(3)
 void ACPI_INTERNAL_VAR_XFACE
-acpi_warning(const char *module_name,
-	     u32 line_number, const char *format, ...) ACPI_PRINTF_LIKE(3);
+acpi_warning(const char *module_name, u32 line_number, const char *format, ...);
 
+ACPI_PRINTF_LIKE(3)
 void ACPI_INTERNAL_VAR_XFACE
-acpi_info(const char *module_name,
-	  u32 line_number, const char *format, ...) ACPI_PRINTF_LIKE(3);
+acpi_info(const char *module_name, u32 line_number, const char *format, ...);
 
+ACPI_PRINTF_LIKE(3)
 void ACPI_INTERNAL_VAR_XFACE
 acpi_bios_error(const char *module_name,
-		u32 line_number, const char *format, ...) ACPI_PRINTF_LIKE(3);
+		u32 line_number, const char *format, ...);
 
+ACPI_PRINTF_LIKE(3)
 void ACPI_INTERNAL_VAR_XFACE
 acpi_bios_warning(const char *module_name,
-		  u32 line_number, const char *format, ...) ACPI_PRINTF_LIKE(3);
+		  u32 line_number, const char *format, ...);
 
 /*
  * Debug output
  */
 #ifdef ACPI_DEBUG_OUTPUT
 
+ACPI_PRINTF_LIKE(6)
 void ACPI_INTERNAL_VAR_XFACE
 acpi_debug_print(u32 requested_debug_level,
 		 u32 line_number,
 		 const char *function_name,
 		 const char *module_name,
-		 u32 component_id, const char *format, ...) ACPI_PRINTF_LIKE(6);
+		 u32 component_id, const char *format, ...);
 
+ACPI_PRINTF_LIKE(6)
 void ACPI_INTERNAL_VAR_XFACE
 acpi_debug_print_raw(u32 requested_debug_level,
 		     u32 line_number,
 		     const char *function_name,
 		     const char *module_name,
-		     u32 component_id,
-		     const char *format, ...) ACPI_PRINTF_LIKE(6);
+		     u32 component_id, const char *format, ...);
 #endif
 
 #endif				/* __ACXFACE_H__ */
-- 
cgit 


From cd27d79f56e77924b6c66fa4a48306209b93605f Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Tue, 29 Oct 2013 09:30:22 +0800
Subject: ACPICA: Fix indentation issues for macro invocations.

During the automatic translation of the upstream ACPICA source code
into Linux kernel source code some extra white spaces are added by
the "indent" program at the beginning of each line which is an
invocation of a macro and there is no ";" at the end of the line.

For this reason, a new mode has been added to the translation scripts
to remove the extra spaces inserted before invoking such macros and add
an empty line between the invocations of such macros (like the other
function declarations).  This new mode is executed after executing
"indent" during the Linux release process.  Consequently, some
existing ACPICA source code in the Linux kernel tree needs to be
adjusted to allow the new scripts to work correctly.

The affected macros and files are:
 1. ACPI_HW_DEPENDENT_RETURN (acpixf.h/acdebug.h/acevents.h):
    This macro is used as a wrapper for hardware dependent APIs to offer
    a stub when the reduced hardware is configured during compilation.
 2. ACPI_EXPORT_SYMBOL (utglobal.c):
    This macro is used by Linux to export symbols to be found by Linux
    modules.  All such invocations are well formatted except those
    exported as global variables.

This can help to reduce the source code differences between Linux
and upstream ACPICA, and also help to automate the release process.
No functional or binary generation changes should result from it.
Lv Zheng.

[rjw: Changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acdebug.h  |  3 ++-
 drivers/acpi/acpica/acevents.h |  3 ++-
 drivers/acpi/acpica/utcache.c  |  2 +-
 drivers/acpi/acpica/utglobal.c |  3 +++
 include/acpi/acpixf.h          | 22 +++++++++++++++++-----
 5 files changed, 25 insertions(+), 8 deletions(-)

diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h
index 57cdc770fba8..a9fd0b872062 100644
--- a/drivers/acpi/acpica/acdebug.h
+++ b/drivers/acpi/acpica/acdebug.h
@@ -113,7 +113,8 @@ void acpi_db_display_handlers(void);
 ACPI_HW_DEPENDENT_RETURN_VOID(void
 			      acpi_db_generate_gpe(char *gpe_arg,
 						   char *block_arg))
- ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_db_generate_sci(void))
+
+ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_db_generate_sci(void))
 
 /*
  * dbconvert - miscellaneous conversion routines
diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h
index 3ae5fd02ae64..41abe552c7a3 100644
--- a/drivers/acpi/acpica/acevents.h
+++ b/drivers/acpi/acpica/acevents.h
@@ -71,7 +71,8 @@ acpi_status acpi_ev_init_global_lock_handler(void);
 
 ACPI_HW_DEPENDENT_RETURN_OK(acpi_status
 			    acpi_ev_acquire_global_lock(u16 timeout))
- ACPI_HW_DEPENDENT_RETURN_OK(acpi_status acpi_ev_release_global_lock(void))
+
+ACPI_HW_DEPENDENT_RETURN_OK(acpi_status acpi_ev_release_global_lock(void))
  acpi_status acpi_ev_remove_global_lock_handler(void);
 
 /*
diff --git a/drivers/acpi/acpica/utcache.c b/drivers/acpi/acpica/utcache.c
index a877a9647fd9..366bfec4b770 100644
--- a/drivers/acpi/acpica/utcache.c
+++ b/drivers/acpi/acpica/utcache.c
@@ -65,7 +65,7 @@ ACPI_MODULE_NAME("utcache")
 acpi_status
 acpi_os_create_cache(char *cache_name,
 		     u16 object_size,
-		     u16 max_depth, struct acpi_memory_list ** return_cache)
+		     u16 max_depth, struct acpi_memory_list **return_cache)
 {
 	struct acpi_memory_list *cache;
 
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index 4f59784b397d..77caa4fbcdee 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -378,6 +378,9 @@ acpi_status acpi_ut_init_globals(void)
 /* Public globals */
 
 ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
+
 ACPI_EXPORT_SYMBOL(acpi_dbg_level)
+
 ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
+
 ACPI_EXPORT_SYMBOL(acpi_current_gpe_count)
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 9759bd5f4777..cb2e74443f35 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -54,6 +54,7 @@
 #include <acpi/acbuffer.h>
 
 extern u8 acpi_gbl_permanent_mmap;
+extern u32 acpi_rsdt_forced;
 
 /*
  * Globals that are publically available
@@ -110,7 +111,6 @@ extern u8 acpi_gbl_disable_ssdt_table_load;
 
 #endif				/* !ACPI_REDUCED_HARDWARE */
 
-extern u32 acpi_rsdt_forced;
 /*
  * Initialization
  */
@@ -130,9 +130,10 @@ acpi_status acpi_terminate(void);
  * Miscellaneous global interfaces
  */
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable(void))
+
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_disable(void))
 #ifdef ACPI_FUTURE_USAGE
-acpi_status acpi_subsystem_status(void);
+ acpi_status acpi_subsystem_status(void);
 #endif
 
 #ifdef ACPI_FUTURE_USAGE
@@ -172,7 +173,7 @@ acpi_status acpi_load_tables(void);
  */
 acpi_status acpi_reallocate_root_table(void);
 
-acpi_status acpi_find_root_pointer(acpi_size *rsdp_address);
+acpi_status acpi_find_root_pointer(acpi_size * rsdp_address);
 
 acpi_status acpi_unload_table_id(acpi_owner_id id);
 
@@ -184,6 +185,7 @@ acpi_status
 acpi_get_table_with_size(acpi_string signature,
 	       u32 instance, struct acpi_table_header **out_table,
 	       acpi_size *tbl_size);
+
 acpi_status
 acpi_get_table(acpi_string signature,
 	       u32 instance, struct acpi_table_header **out_table);
@@ -274,13 +276,16 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 				acpi_install_sci_handler(acpi_sci_handler
 							 address,
 							 void *context))
+
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 				 acpi_remove_sci_handler(acpi_sci_handler
 							 address))
+
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 				 acpi_install_global_event_handler
 				 (acpi_gbl_event_handler handler,
 				  void *context))
+
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 				 acpi_install_fixed_event_handler(u32
 								  acpi_event,
@@ -288,10 +293,12 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 								  handler,
 								  void
 								  *context))
+
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 				 acpi_remove_fixed_event_handler(u32 acpi_event,
 								 acpi_event_handler
 								 handler))
+
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 				 acpi_install_gpe_handler(acpi_handle
 							  gpe_device,
@@ -300,6 +307,7 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 							  acpi_gpe_handler
 							  address,
 							  void *context))
+
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 				 acpi_remove_gpe_handler(acpi_handle gpe_device,
 							 u32 gpe_number,
@@ -336,6 +344,7 @@ acpi_status acpi_install_interface_handler(acpi_interface_handler handler);
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 				acpi_acquire_global_lock(u16 timeout,
 							 u32 *handle))
+
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 				acpi_release_global_lock(u32 handle))
 
@@ -362,6 +371,7 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 				acpi_get_event_status(u32 event,
 						      acpi_event_status
 						      *event_status))
+
 /*
  * General Purpose Event (GPE) Interfaces
  */
@@ -392,10 +402,12 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 							parent_device,
 							acpi_handle gpe_device,
 							u32 gpe_number))
+
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 				 acpi_set_gpe_wake_mask(acpi_handle gpe_device,
 							u32 gpe_number,
 							u8 action))
+
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 				 acpi_get_gpe_status(acpi_handle gpe_device,
 						     u32 gpe_number,
@@ -417,6 +429,7 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 						       *gpe_block_address,
 						       u32 register_count,
 						       u32 interrupt_number))
+
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 				 acpi_remove_gpe_block(acpi_handle gpe_device))
 
@@ -491,7 +504,7 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
  * Sleep/Wake interfaces
  */
 acpi_status
-acpi_get_sleep_type_data(u8 sleep_state, u8 * slp_typ_a, u8 * slp_typ_b);
+acpi_get_sleep_type_data(u8 sleep_state, u8 *slp_typ_a, u8 *slp_typ_b);
 
 acpi_status acpi_enter_sleep_state_prep(u8 sleep_state);
 
@@ -506,7 +519,6 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state);
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 				acpi_set_firmware_waking_vector(u32
 								physical_address))
-
 #if ACPI_MACHINE_WIDTH == 64
 ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status
 				acpi_set_firmware_waking_vector64(u64
-- 
cgit 


From c0144dc0e43ed97d60ce34c900a4326bb087bf11 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Tue, 29 Oct 2013 09:30:29 +0800
Subject: ACPICA: Simplify configuration of global ACPI_REDUCED_HARDWARE macro.

Surround definition of this with a #ifndef so that the kernel
can define it elsewhere if desired.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/acpi/acconfig.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/acpi/acconfig.h b/include/acpi/acconfig.h
index 1c16f821434f..d98c67001840 100644
--- a/include/acpi/acconfig.h
+++ b/include/acpi/acconfig.h
@@ -100,7 +100,9 @@
  *      ACPI PM timer
  *      FACS table (Waking vectors and Global Lock)
  */
+#ifndef ACPI_REDUCED_HARDWARE
 #define ACPI_REDUCED_HARDWARE           FALSE
+#endif
 
 /******************************************************************************
  *
-- 
cgit 


From 7e94632fc530d990de3110e6c53425d6e28dd238 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Tue, 29 Oct 2013 09:30:35 +0800
Subject: ACPICA: Add support to allow host OS to redefine individual OSL
 prototypes.

This change enables the host OS to redefine OSL prototypes found in the
acpiosxf.h file. This allows the host OS to implement OSL interfaces with
a macro or inlined function. Further, it allows the host OS to add any
additional required modifiers such as __iomem, __init, __exit, etc.,
as necessary on a per-interface basis. Enables maximum flexibility
for the OSL interfaces. Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/acpi/acpiosxf.h         | 139 +++++++++++++++++++++++++++++++++++++++-
 include/acpi/platform/aclinux.h |   1 +
 2 files changed, 137 insertions(+), 3 deletions(-)

diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h
index 7f95215e7754..55165fcd77d7 100644
--- a/include/acpi/acpiosxf.h
+++ b/include/acpi/acpiosxf.h
@@ -77,54 +77,80 @@ struct acpi_signal_fatal_info {
 /*
  * OSL Initialization and shutdown primitives
  */
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_initialize
 acpi_status __init acpi_os_initialize(void);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_terminate
 acpi_status acpi_os_terminate(void);
+#endif
 
 /*
  * ACPI Table interfaces
  */
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_root_pointer
 acpi_physical_address acpi_os_get_root_pointer(void);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_predefined_override
 acpi_status
 acpi_os_predefined_override(const struct acpi_predefined_names *init_val,
 			    acpi_string * new_val);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_table_override
 acpi_status
 acpi_os_table_override(struct acpi_table_header *existing_table,
 		       struct acpi_table_header **new_table);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_physical_table_override
 acpi_status
 acpi_os_physical_table_override(struct acpi_table_header *existing_table,
 				acpi_physical_address * new_address,
 				u32 *new_table_length);
+#endif
 
 /*
  * Spinlock primitives
  */
-#ifndef acpi_os_create_lock
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_lock
 acpi_status acpi_os_create_lock(acpi_spinlock * out_handle);
 #endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_delete_lock
 void acpi_os_delete_lock(acpi_spinlock handle);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_lock
 acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock handle);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_release_lock
 void acpi_os_release_lock(acpi_spinlock handle, acpi_cpu_flags flags);
+#endif
 
 /*
  * Semaphore primitives
  */
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_semaphore
 acpi_status
 acpi_os_create_semaphore(u32 max_units,
 			 u32 initial_units, acpi_semaphore * out_handle);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_delete_semaphore
 acpi_status acpi_os_delete_semaphore(acpi_semaphore handle);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_wait_semaphore
 acpi_status
 acpi_os_wait_semaphore(acpi_semaphore handle, u32 units, u16 timeout);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_signal_semaphore
 acpi_status acpi_os_signal_semaphore(acpi_semaphore handle, u32 units);
+#endif
 
 /*
  * Mutex primitives. May be configured to use semaphores instead via
@@ -132,63 +158,98 @@ acpi_status acpi_os_signal_semaphore(acpi_semaphore handle, u32 units);
  */
 #if (ACPI_MUTEX_TYPE != ACPI_BINARY_SEMAPHORE)
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_mutex
 acpi_status acpi_os_create_mutex(acpi_mutex * out_handle);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_delete_mutex
 void acpi_os_delete_mutex(acpi_mutex handle);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_mutex
 acpi_status acpi_os_acquire_mutex(acpi_mutex handle, u16 timeout);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_release_mutex
 void acpi_os_release_mutex(acpi_mutex handle);
 #endif
 
+#endif
+
 /*
  * Memory allocation and mapping
  */
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_allocate
 void *acpi_os_allocate(acpi_size size);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_allocate_zeroed
 void *acpi_os_allocate_zeroed(acpi_size size);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_free
 void acpi_os_free(void *memory);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_map_memory
 void __iomem *acpi_os_map_memory(acpi_physical_address where,
 				acpi_size length);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_unmap_memory
 void acpi_os_unmap_memory(void __iomem * logical_address, acpi_size size);
+#endif
 void early_acpi_os_unmap_memory(void __iomem * virt, acpi_size size);
 
 #ifdef ACPI_FUTURE_USAGE
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_physical_address
 acpi_status
 acpi_os_get_physical_address(void *logical_address,
 			     acpi_physical_address * physical_address);
 #endif
+#endif
 
 /*
  * Memory/Object Cache
  */
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_cache
 acpi_status
 acpi_os_create_cache(char *cache_name,
 		     u16 object_size,
 		     u16 max_depth, acpi_cache_t ** return_cache);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_delete_cache
 acpi_status acpi_os_delete_cache(acpi_cache_t * cache);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_purge_cache
 acpi_status acpi_os_purge_cache(acpi_cache_t * cache);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_object
 void *acpi_os_acquire_object(acpi_cache_t * cache);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_release_object
 acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object);
+#endif
 
 /*
  * Interrupt handlers
  */
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_install_interrupt_handler
 acpi_status
 acpi_os_install_interrupt_handler(u32 interrupt_number,
 				  acpi_osd_handler service_routine,
 				  void *context);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_remove_interrupt_handler
 acpi_status
 acpi_os_remove_interrupt_handler(u32 interrupt_number,
 				 acpi_osd_handler service_routine);
+#endif
 
 void acpi_os_gpe_count(u32 gpe_number);
 void acpi_os_fixed_event_count(u32 fixed_event_number);
@@ -196,86 +257,158 @@ void acpi_os_fixed_event_count(u32 fixed_event_number);
 /*
  * Threads and Scheduling
  */
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_thread_id
 acpi_thread_id acpi_os_get_thread_id(void);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_execute
 acpi_status
 acpi_os_execute(acpi_execute_type type,
 		acpi_osd_exec_callback function, void *context);
+#endif
 
 acpi_status
 acpi_os_hotplug_execute(acpi_osd_exec_callback function, void *context);
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_wait_events_complete
 void acpi_os_wait_events_complete(void);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_sleep
 void acpi_os_sleep(u64 milliseconds);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_stall
 void acpi_os_stall(u32 microseconds);
+#endif
 
 /*
  * Platform and hardware-independent I/O interfaces
  */
-acpi_status acpi_os_read_port(acpi_io_address address, u32 * value, u32 width);
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_read_port
+acpi_status acpi_os_read_port(acpi_io_address address, u32 *value, u32 width);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_write_port
 acpi_status acpi_os_write_port(acpi_io_address address, u32 value, u32 width);
+#endif
 
 /*
  * Platform and hardware-independent physical memory interfaces
  */
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_read_memory
 acpi_status
 acpi_os_read_memory(acpi_physical_address address, u64 *value, u32 width);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_write_memory
 acpi_status
 acpi_os_write_memory(acpi_physical_address address, u64 value, u32 width);
+#endif
 
 /*
  * Platform and hardware-independent PCI configuration space access
  * Note: Can't use "Register" as a parameter, changed to "Reg" --
  * certain compilers complain.
  */
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_read_pci_configuration
 acpi_status
 acpi_os_read_pci_configuration(struct acpi_pci_id *pci_id,
 			       u32 reg, u64 *value, u32 width);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_write_pci_configuration
 acpi_status
 acpi_os_write_pci_configuration(struct acpi_pci_id *pci_id,
 				u32 reg, u64 value, u32 width);
+#endif
 
 /*
  * Miscellaneous
  */
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_readable
+u8 acpi_os_readable(void *pointer, acpi_size length);
+#endif
+
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_writable
+u8 acpi_os_writable(void *pointer, acpi_size length);
+#endif
+
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_timer
 u64 acpi_os_get_timer(void);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_signal
 acpi_status acpi_os_signal(u32 function, void *info);
+#endif
 
 /*
  * Debug print routines
  */
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_printf
 void ACPI_INTERNAL_VAR_XFACE acpi_os_printf(const char *format, ...);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_vprintf
 void acpi_os_vprintf(const char *format, va_list args);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_redirect_output
 void acpi_os_redirect_output(void *destination);
+#endif
 
 #ifdef ACPI_FUTURE_USAGE
 /*
  * Debug input
  */
-u32 acpi_os_get_line(char *buffer);
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_line
+acpi_status acpi_os_get_line(char *buffer, u32 buffer_length, u32 *bytes_read);
+#endif
+#endif
+
+/*
+ * Obtain ACPI table(s)
+ */
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_name
+acpi_status
+acpi_os_get_table_by_name(char *signature,
+			  u32 instance,
+			  struct acpi_table_header **table,
+			  acpi_physical_address * address);
+#endif
+
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_index
+acpi_status
+acpi_os_get_table_by_index(u32 index,
+			   struct acpi_table_header **table,
+			   u32 *instance, acpi_physical_address * address);
+#endif
+
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_address
+acpi_status
+acpi_os_get_table_by_address(acpi_physical_address address,
+			     struct acpi_table_header **table);
 #endif
 
 /*
  * Directory manipulation
  */
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_open_directory
 void *acpi_os_open_directory(char *pathname,
 			     char *wildcard_spec, char requested_file_type);
+#endif
 
 /* requeste_file_type values */
 
 #define REQUEST_FILE_ONLY                   0
 #define REQUEST_DIR_ONLY                    1
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_next_filename
 char *acpi_os_get_next_filename(void *dir_handle);
+#endif
 
+#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_close_directory
 void acpi_os_close_directory(void *dir_handle);
+#endif
 
 #endif				/* __ACPIOSXF_H__ */
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index 0e6e73c04dcb..04e87a3b8086 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -182,6 +182,7 @@ static inline void acpi_os_free(void *a)
 	}							\
 	lock ? AE_OK : AE_NO_MEMORY;				\
 })
+#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_lock
 
 #ifdef EXPORT_ACPI_INTERFACES
 #include <linux/export.h>
-- 
cgit 


From ac806a1c880d07753e54fb80aa3a70365a58652d Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 31 Oct 2013 00:40:30 +0000
Subject: dmaengine: imx-dma: fix format warnings

drivers/dma/imx-dma.c:575:3: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t'
drivers/dma/imx-dma.c:575:3: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t'
drivers/dma/imx-dma.c:589:4: warning: format '%x' expects argument of type 'unsigned int', but argument 9 has type 'dma_addr_t'
drivers/dma/imx-dma.c:599:4: warning: format '%x' expects argument of type 'unsigned int', but argument 9 has type 'dma_addr_t'
drivers/dma/imx-dma.c:929:2: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t'
drivers/dma/imx-dma.c:929:2: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t'
drivers/dma/imx-dma.c:959:2: warning: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t'
drivers/dma/imx-dma.c:959:2: warning: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t'

We can't use the %pa format for these because this relates to phys_addr_t,
and dma_addr_t can be a different size.  So, fix these by converting them
to %llx and casting the dma_addr_t to always be unsigned long long.

While we're here, also use %zu for size_t.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/imx-dma.c | 40 +++++++++++++++++++++++-----------------
 1 file changed, 23 insertions(+), 17 deletions(-)

diff --git a/drivers/dma/imx-dma.c b/drivers/dma/imx-dma.c
index 55852c026791..1c0d85d56562 100644
--- a/drivers/dma/imx-dma.c
+++ b/drivers/dma/imx-dma.c
@@ -572,9 +572,11 @@ static int imxdma_xfer_desc(struct imxdma_desc *d)
 
 		imx_dmav1_writel(imxdma, d->len, DMA_CNTR(imxdmac->channel));
 
-		dev_dbg(imxdma->dev, "%s channel: %d dest=0x%08x src=0x%08x "
-			"dma_length=%d\n", __func__, imxdmac->channel,
-			d->dest, d->src, d->len);
+		dev_dbg(imxdma->dev,
+			"%s channel: %d dest=0x%08llx src=0x%08llx dma_length=%zu\n",
+			__func__, imxdmac->channel,
+			(unsigned long long)d->dest,
+			(unsigned long long)d->src, d->len);
 
 		break;
 	/* Cyclic transfer is the same as slave_sg with special sg configuration. */
@@ -586,20 +588,22 @@ static int imxdma_xfer_desc(struct imxdma_desc *d)
 			imx_dmav1_writel(imxdma, imxdmac->ccr_from_device,
 					 DMA_CCR(imxdmac->channel));
 
-			dev_dbg(imxdma->dev, "%s channel: %d sg=%p sgcount=%d "
-				"total length=%d dev_addr=0x%08x (dev2mem)\n",
-				__func__, imxdmac->channel, d->sg, d->sgcount,
-				d->len, imxdmac->per_address);
+			dev_dbg(imxdma->dev,
+				"%s channel: %d sg=%p sgcount=%d total length=%zu dev_addr=0x%08llx (dev2mem)\n",
+				__func__, imxdmac->channel,
+				d->sg, d->sgcount, d->len,
+				(unsigned long long)imxdmac->per_address);
 		} else if (d->direction == DMA_MEM_TO_DEV) {
 			imx_dmav1_writel(imxdma, imxdmac->per_address,
 					 DMA_DAR(imxdmac->channel));
 			imx_dmav1_writel(imxdma, imxdmac->ccr_to_device,
 					 DMA_CCR(imxdmac->channel));
 
-			dev_dbg(imxdma->dev, "%s channel: %d sg=%p sgcount=%d "
-				"total length=%d dev_addr=0x%08x (mem2dev)\n",
-				__func__, imxdmac->channel, d->sg, d->sgcount,
-				d->len, imxdmac->per_address);
+			dev_dbg(imxdma->dev,
+				"%s channel: %d sg=%p sgcount=%d total length=%zu dev_addr=0x%08llx (mem2dev)\n",
+				__func__, imxdmac->channel,
+				d->sg, d->sgcount, d->len,
+				(unsigned long long)imxdmac->per_address);
 		} else {
 			dev_err(imxdma->dev, "%s channel: %d bad dma mode\n",
 				__func__, imxdmac->channel);
@@ -870,7 +874,7 @@ static struct dma_async_tx_descriptor *imxdma_prep_dma_cyclic(
 	int i;
 	unsigned int periods = buf_len / period_len;
 
-	dev_dbg(imxdma->dev, "%s channel: %d buf_len=%d period_len=%d\n",
+	dev_dbg(imxdma->dev, "%s channel: %d buf_len=%zu period_len=%zu\n",
 			__func__, imxdmac->channel, buf_len, period_len);
 
 	if (list_empty(&imxdmac->ld_free) ||
@@ -926,8 +930,9 @@ static struct dma_async_tx_descriptor *imxdma_prep_dma_memcpy(
 	struct imxdma_engine *imxdma = imxdmac->imxdma;
 	struct imxdma_desc *desc;
 
-	dev_dbg(imxdma->dev, "%s channel: %d src=0x%x dst=0x%x len=%d\n",
-			__func__, imxdmac->channel, src, dest, len);
+	dev_dbg(imxdma->dev, "%s channel: %d src=0x%llx dst=0x%llx len=%zu\n",
+		__func__, imxdmac->channel, (unsigned long long)src,
+		(unsigned long long)dest, len);
 
 	if (list_empty(&imxdmac->ld_free) ||
 	    imxdma_chan_is_doing_cyclic(imxdmac))
@@ -956,9 +961,10 @@ static struct dma_async_tx_descriptor *imxdma_prep_dma_interleaved(
 	struct imxdma_engine *imxdma = imxdmac->imxdma;
 	struct imxdma_desc *desc;
 
-	dev_dbg(imxdma->dev, "%s channel: %d src_start=0x%x dst_start=0x%x\n"
-		"   src_sgl=%s dst_sgl=%s numf=%d frame_size=%d\n", __func__,
-		imxdmac->channel, xt->src_start, xt->dst_start,
+	dev_dbg(imxdma->dev, "%s channel: %d src_start=0x%llx dst_start=0x%llx\n"
+		"   src_sgl=%s dst_sgl=%s numf=%zu frame_size=%zu\n", __func__,
+		imxdmac->channel, (unsigned long long)xt->src_start,
+		(unsigned long long) xt->dst_start,
 		xt->src_sgl ? "true" : "false", xt->dst_sgl ? "true" : "false",
 		xt->numf, xt->frame_size);
 
-- 
cgit 


From 93220587f76b8a4eca89cb655fc0cc04e9da663d Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Tue, 29 Oct 2013 09:30:41 +0800
Subject: ACPICA: Update aclinux.h for new OSL override mechanism.

The new ACPICA OSL override mechanism is used to solve these issues
for the Linux OSL:
 1. Linux can implement OSL using a macro.
 2. Linux can implement OSL using an inlined function.
 3. Linux can leave OSL not implemented for __KERNEL__ undefined code
    fragments.
 4. Linux can add sparse declarators (__iomem) to OSL.
 5. Linux can add memory tuning declarators (__init/__exit) to OSL.
This patch also moves Linux specific OSL to aclinux.h which has not been
maintained in the ACPICA code base.  Lv Zheng.

Known issue:

 From ACPICA's perspective, actypes.h should be included after inclusion
 of acenv.h.  But currently in Linux, aclinux.h included by acenv.h has
 included actypes.h to find ACPICA types for inline functions.  This is a
 known and existing issue and currently there is no real problem caused
 by this issue for Linux kernel build.  Thus this issue is not covered by
 this cleanup commit.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/acpi/acpiosxf.h         |  18 +-----
 include/acpi/platform/aclinux.h | 118 ++++++++++++++++++++++++++++++----------
 2 files changed, 91 insertions(+), 45 deletions(-)

diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h
index 55165fcd77d7..01e6c6d8b7e1 100644
--- a/include/acpi/acpiosxf.h
+++ b/include/acpi/acpiosxf.h
@@ -78,7 +78,7 @@ struct acpi_signal_fatal_info {
  * OSL Initialization and shutdown primitives
  */
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_initialize
-acpi_status __init acpi_os_initialize(void);
+acpi_status acpi_os_initialize(void);
 #endif
 
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_terminate
@@ -192,22 +192,18 @@ void acpi_os_free(void *memory);
 #endif
 
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_map_memory
-void __iomem *acpi_os_map_memory(acpi_physical_address where,
-				acpi_size length);
+void *acpi_os_map_memory(acpi_physical_address where, acpi_size length);
 #endif
 
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_unmap_memory
-void acpi_os_unmap_memory(void __iomem * logical_address, acpi_size size);
+void acpi_os_unmap_memory(void *logical_address, acpi_size size);
 #endif
-void early_acpi_os_unmap_memory(void __iomem * virt, acpi_size size);
 
-#ifdef ACPI_FUTURE_USAGE
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_physical_address
 acpi_status
 acpi_os_get_physical_address(void *logical_address,
 			     acpi_physical_address * physical_address);
 #endif
-#endif
 
 /*
  * Memory/Object Cache
@@ -251,9 +247,6 @@ acpi_os_remove_interrupt_handler(u32 interrupt_number,
 				 acpi_osd_handler service_routine);
 #endif
 
-void acpi_os_gpe_count(u32 gpe_number);
-void acpi_os_fixed_event_count(u32 fixed_event_number);
-
 /*
  * Threads and Scheduling
  */
@@ -267,9 +260,6 @@ acpi_os_execute(acpi_execute_type type,
 		acpi_osd_exec_callback function, void *context);
 #endif
 
-acpi_status
-acpi_os_hotplug_execute(acpi_osd_exec_callback function, void *context);
-
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_wait_events_complete
 void acpi_os_wait_events_complete(void);
 #endif
@@ -357,14 +347,12 @@ void acpi_os_vprintf(const char *format, va_list args);
 void acpi_os_redirect_output(void *destination);
 #endif
 
-#ifdef ACPI_FUTURE_USAGE
 /*
  * Debug input
  */
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_line
 acpi_status acpi_os_get_line(char *buffer, u32 buffer_length, u32 *bytes_read);
 #endif
-#endif
 
 /*
  * Obtain ACPI table(s)
diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h
index 04e87a3b8086..ab57930794a5 100644
--- a/include/acpi/platform/aclinux.h
+++ b/include/acpi/platform/aclinux.h
@@ -50,7 +50,6 @@
 #define ACPI_USE_DO_WHILE_0
 #define ACPI_MUTEX_TYPE             ACPI_BINARY_SEMAPHORE
 
-
 #ifdef __KERNEL__
 
 #include <linux/string.h>
@@ -58,11 +57,13 @@
 #include <linux/ctype.h>
 #include <linux/sched.h>
 #include <linux/atomic.h>
-#include <asm/div64.h>
-#include <asm/acpi.h>
+#include <linux/math64.h>
 #include <linux/slab.h>
 #include <linux/spinlock_types.h>
-#include <asm/current.h>
+#ifdef EXPORT_ACPI_INTERFACES
+#include <linux/export.h>
+#endif
+#include <asm/acpi.h>
 
 /* Host-dependent types and defines for in-kernel ACPICA */
 
@@ -109,23 +110,29 @@
 #include <acpi/platform/acgcc.h>
 
 #ifdef __KERNEL__
+
+/*
+ * FIXME: Inclusion of actypes.h
+ * Linux kernel need this before defining inline OSL interfaces as
+ * actypes.h need to be included to find ACPICA type definitions.
+ * Since from ACPICA's perspective, the actypes.h should be included after
+ * acenv.h (aclinux.h), this leads to a inclusion mis-ordering issue.
+ */
 #include <acpi/actypes.h>
+
 /*
  * Overrides for in-kernel ACPICA
  */
-static inline acpi_thread_id acpi_os_get_thread_id(void)
-{
-	return (acpi_thread_id)(unsigned long)current;
-}
+acpi_status __init acpi_os_initialize(void);
+#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_initialize
+
+acpi_status acpi_os_terminate(void);
+#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_terminate
 
 /*
  * Memory allocation/deallocation
  */
 
-/* Use native linux version of acpi_os_allocate_zeroed */
-
-#define USE_NATIVE_ALLOCATE_ZEROED
-
 /*
  * The irqs_disabled() check is for resume from RAM.
  * Interrupts are off during resume, just like they are for boot.
@@ -134,26 +141,45 @@ static inline acpi_thread_id acpi_os_get_thread_id(void)
  */
 static inline void *acpi_os_allocate(acpi_size size)
 {
-	return kmalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);
+	return kmalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
 }
 
+#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_allocate
+
+/* Use native linux version of acpi_os_allocate_zeroed */
+
 static inline void *acpi_os_allocate_zeroed(acpi_size size)
 {
-	return kzalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);
+	return kzalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
+}
+
+#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_allocate_zeroed
+#define USE_NATIVE_ALLOCATE_ZEROED
+
+static inline void acpi_os_free(void *memory)
+{
+	kfree(memory);
 }
 
+#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_free
+
 static inline void *acpi_os_acquire_object(acpi_cache_t * cache)
 {
 	return kmem_cache_zalloc(cache,
-		irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);
+				 irqs_disabled()? GFP_ATOMIC : GFP_KERNEL);
 }
 
-static inline void acpi_os_free(void *a)
+#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_object
+
+static inline acpi_thread_id acpi_os_get_thread_id(void)
 {
-	kfree(a);
+	return (acpi_thread_id) (unsigned long)current;
 }
 
+#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_thread_id
+
 #ifndef CONFIG_PREEMPT
+
 /*
  * Used within ACPICA to show where it is safe to preempt execution
  * when CONFIG_PREEMPT=n
@@ -163,6 +189,7 @@ static inline void acpi_os_free(void *a)
 		if (!irqs_disabled()) \
 			cond_resched(); \
 	} while (0)
+
 #endif
 
 /*
@@ -172,21 +199,52 @@ static inline void acpi_os_free(void *a)
  * all locks to the name of the argument of acpi_os_create_lock(), which
  * prevents lockdep from reporting false positives for ACPICA locks.
  */
-#define acpi_os_create_lock(__handle)				\
-({								\
-	spinlock_t *lock = ACPI_ALLOCATE(sizeof(*lock));	\
-								\
-	if (lock) {						\
-		*(__handle) = lock;				\
-		spin_lock_init(*(__handle));			\
-	}							\
-	lock ? AE_OK : AE_NO_MEMORY;				\
-})
+#define acpi_os_create_lock(__handle) \
+	({ \
+		spinlock_t *lock = ACPI_ALLOCATE(sizeof(*lock)); \
+		if (lock) { \
+			*(__handle) = lock; \
+			spin_lock_init(*(__handle)); \
+		} \
+		lock ? AE_OK : AE_NO_MEMORY; \
+	})
 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_lock
 
-#ifdef EXPORT_ACPI_INTERFACES
-#include <linux/export.h>
-#endif
+void __iomem *acpi_os_map_memory(acpi_physical_address where, acpi_size length);
+#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_map_memory
+
+void acpi_os_unmap_memory(void __iomem * logical_address, acpi_size size);
+#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_unmap_memory
+
+/*
+ * OSL interfaces used by debugger/disassembler
+ */
+#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_readable
+#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_writable
+
+/*
+ * OSL interfaces used by utilities
+ */
+#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_redirect_output
+#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_line
+#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_name
+#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_index
+#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_address
+#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_open_directory
+#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_next_filename
+#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_close_directory
+
+/*
+ * OSL interfaces added by Linux
+ */
+void early_acpi_os_unmap_memory(void __iomem * virt, acpi_size size);
+
+void acpi_os_gpe_count(u32 gpe_number);
+
+void acpi_os_fixed_event_count(u32 fixed_event_number);
+
+acpi_status
+acpi_os_hotplug_execute(acpi_osd_exec_callback function, void *context);
 
 #endif				/* __KERNEL__ */
 
-- 
cgit 


From affffae367c7ee1003232201c52db1fd7dd4f472 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Tue, 29 Oct 2013 09:30:48 +0800
Subject: ACPICA: Update version to 20130927.

Version 20130927.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/acpi/acpixf.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index cb2e74443f35..b2dcab0438c6 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -46,7 +46,7 @@
 
 /* Current ACPICA subsystem version in YYYYMMDD format */
 
-#define ACPI_CA_VERSION                 0x20130823
+#define ACPI_CA_VERSION                 0x20130927
 
 #include <acpi/acconfig.h>
 #include <acpi/actypes.h>
-- 
cgit 


From bb42cc224a4626f9eaef34d9a334f0dc65133c40 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 31 Oct 2013 09:29:49 +0800
Subject: ACPICA: Update default space handlers.

This patch adds code that is already in ACPICA upstream, so applying
it can help to reduce the source code differences between Linux and
ACPICA upstream.

This code fragment is only useful for ACPICA utilities and no
functional changes to the Linux kernel should result from it.

[rjw: Changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/exregion.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/acpi/acpica/exregion.c b/drivers/acpi/acpica/exregion.c
index 303429bb4d5d..9d28867e60dc 100644
--- a/drivers/acpi/acpica/exregion.c
+++ b/drivers/acpi/acpica/exregion.c
@@ -400,6 +400,7 @@ acpi_ex_pci_config_space_handler(u32 function,
 	switch (function) {
 	case ACPI_READ:
 
+		*value = 0;
 		status = acpi_os_read_pci_configuration(pci_id, pci_register,
 							value, bit_width);
 		break;
-- 
cgit 


From 99567bc5507bf404ae13a0c53264c921f380d06f Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 31 Oct 2013 09:30:04 +0800
Subject: ACPICA: Update check for setting the ANOBJ_IS_EXTERNAL flag.

The ANOBJ_IS_EXTERNAL flag is only used by an ACPICA utilities - iASL.

No functional change for the Linux kernel should results from applying
this patch, but it helps to reduce source code differences between
the kernel and ACPICA upstream.

[rjw: Subject and changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/nssearch.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/acpica/nssearch.c b/drivers/acpi/acpica/nssearch.c
index 5d43efc53a61..47420faef073 100644
--- a/drivers/acpi/acpica/nssearch.c
+++ b/drivers/acpi/acpica/nssearch.c
@@ -381,7 +381,8 @@ acpi_ns_search_and_enter(u32 target_name,
 
 	/* Node is an object defined by an External() statement */
 
-	if (flags & ACPI_NS_EXTERNAL) {
+	if (flags & ACPI_NS_EXTERNAL ||
+	    (walk_state && walk_state->opcode == AML_SCOPE_OP)) {
 		new_node->flags |= ANOBJ_IS_EXTERNAL;
 	}
 #endif
-- 
cgit 


From 98f7eb878a3495474f5d616301a914d7f9bdb389 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 31 Oct 2013 09:30:10 +0800
Subject: ACPICA: Update namespace dump code.

This patch merges namespace dump code updates from ACPICA upstream to
reduce the source code differences between Linux and ACPICA upstream.  No
functional changes as currently nsdumpdv.c is not used by Linux.

This patch does not affect the generation of the Linux kernel binary.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/nsdumpdv.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/acpica/nsdumpdv.c b/drivers/acpi/acpica/nsdumpdv.c
index 409ae80824d1..283762511b73 100644
--- a/drivers/acpi/acpica/nsdumpdv.c
+++ b/drivers/acpi/acpica/nsdumpdv.c
@@ -69,6 +69,7 @@ static acpi_status
 acpi_ns_dump_one_device(acpi_handle obj_handle,
 			u32 level, void *context, void **return_value)
 {
+	struct acpi_buffer buffer;
 	struct acpi_device_info *info;
 	acpi_status status;
 	u32 i;
@@ -78,15 +79,17 @@ acpi_ns_dump_one_device(acpi_handle obj_handle,
 	status =
 	    acpi_ns_dump_one_object(obj_handle, level, context, return_value);
 
-	status = acpi_get_object_info(obj_handle, &info);
+	buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+	status = acpi_get_object_info(obj_handle, &buffer);
 	if (ACPI_SUCCESS(status)) {
+		info = buffer.pointer;
 		for (i = 0; i < level; i++) {
 			ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES, " "));
 		}
 
 		ACPI_DEBUG_PRINT_RAW((ACPI_DB_TABLES,
 				      "    HID: %s, ADR: %8.8X%8.8X, Status: %X\n",
-				      info->hardware_id.string,
+				      info->hardware_id.value,
 				      ACPI_FORMAT_UINT64(info->address),
 				      info->current_status));
 		ACPI_FREE(info);
-- 
cgit 


From 09b8b1fce7688958f44884135b83fb857eb6e1b6 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 31 Oct 2013 09:30:16 +0800
Subject: ACPICA: Update RSDP table definitions.

This patch updates RSDP table header definitions as such enhancement
has been made in ACPICA upstream already.  It ports that change to
the Linux source to reduce source code differences between Linux and
ACPICA upstream.

This patch does not affect the generation of the Linux kernel binary.

[rjw: Changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/acpi/actbl.h | 19 ++++++++++++++++++-
 1 file changed, 18 insertions(+), 1 deletion(-)

diff --git a/include/acpi/actbl.h b/include/acpi/actbl.h
index 9b58a8f43771..94970880126f 100644
--- a/include/acpi/actbl.h
+++ b/include/acpi/actbl.h
@@ -146,7 +146,24 @@ struct acpi_table_rsdp {
 	u8 reserved[3];		/* Reserved, must be zero */
 };
 
-#define ACPI_RSDP_REV0_SIZE     20	/* Size of original ACPI 1.0 RSDP */
+/* Standalone struct for the ACPI 1.0 RSDP */
+
+struct acpi_rsdp_common {
+	char signature[8];
+	u8 checksum;
+	char oem_id[ACPI_OEM_ID_SIZE];
+	u8 revision;
+	u32 rsdt_physical_address;
+};
+
+/* Standalone struct for the extended part of the RSDP (ACPI 2.0+) */
+
+struct acpi_rsdp_extension {
+	u32 length;
+	u64 xsdt_physical_address;
+	u8 extended_checksum;
+	u8 reserved[3];
+};
 
 /*******************************************************************************
  *
-- 
cgit 


From fa5f508f942faaf73ae5020db7a4189d5ca88d2a Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 31 Oct 2013 09:30:22 +0800
Subject: ACPICA: Update DMAR table definitions.

This patch updates DMAR table header definitions as such enhancement
has been made in ACPICA upstream already.  It ports that change to
the Linux source to reduce source code differences between Linux and
ACPICA upstream.

Build test done on x86-64 machine with the following configs enabled:
  CONFIG_DMAR_TABLE
  CONFIG_IRQ_REMAP
  CONFIG_INTEL_IOMMU

This patch does not affect the generation of the Linux kernel binary.

[rjw: Changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/iommu/dmar.c                | 4 ++--
 drivers/iommu/intel_irq_remapping.c | 8 ++++----
 include/acpi/actbl2.h               | 4 ++--
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index 785675a56a10..900946950230 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -88,7 +88,7 @@ static int __init dmar_parse_one_dev_scope(struct acpi_dmar_device_scope *scope,
 			pr_warn("Device scope bus [%d] not found\n", scope->bus);
 			break;
 		}
-		pdev = pci_get_slot(bus, PCI_DEVFN(path->dev, path->fn));
+		pdev = pci_get_slot(bus, PCI_DEVFN(path->device, path->function));
 		if (!pdev) {
 			/* warning will be printed below */
 			break;
@@ -99,7 +99,7 @@ static int __init dmar_parse_one_dev_scope(struct acpi_dmar_device_scope *scope,
 	}
 	if (!pdev) {
 		pr_warn("Device scope device [%04x:%02x:%02x.%02x] not found\n",
-			segment, scope->bus, path->dev, path->fn);
+			segment, scope->bus, path->device, path->function);
 		*dev = NULL;
 		return 0;
 	}
diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c
index f71673dbb23d..ab86902fd9ff 100644
--- a/drivers/iommu/intel_irq_remapping.c
+++ b/drivers/iommu/intel_irq_remapping.c
@@ -686,12 +686,12 @@ static void ir_parse_one_hpet_scope(struct acpi_dmar_device_scope *scope,
 		 * Access PCI directly due to the PCI
 		 * subsystem isn't initialized yet.
 		 */
-		bus = read_pci_config_byte(bus, path->dev, path->fn,
+		bus = read_pci_config_byte(bus, path->device, path->function,
 					   PCI_SECONDARY_BUS);
 		path++;
 	}
 	ir_hpet[ir_hpet_num].bus   = bus;
-	ir_hpet[ir_hpet_num].devfn = PCI_DEVFN(path->dev, path->fn);
+	ir_hpet[ir_hpet_num].devfn = PCI_DEVFN(path->device, path->function);
 	ir_hpet[ir_hpet_num].iommu = iommu;
 	ir_hpet[ir_hpet_num].id    = scope->enumeration_id;
 	ir_hpet_num++;
@@ -714,13 +714,13 @@ static void ir_parse_one_ioapic_scope(struct acpi_dmar_device_scope *scope,
 		 * Access PCI directly due to the PCI
 		 * subsystem isn't initialized yet.
 		 */
-		bus = read_pci_config_byte(bus, path->dev, path->fn,
+		bus = read_pci_config_byte(bus, path->device, path->function,
 					   PCI_SECONDARY_BUS);
 		path++;
 	}
 
 	ir_ioapic[ir_ioapic_num].bus   = bus;
-	ir_ioapic[ir_ioapic_num].devfn = PCI_DEVFN(path->dev, path->fn);
+	ir_ioapic[ir_ioapic_num].devfn = PCI_DEVFN(path->device, path->function);
 	ir_ioapic[ir_ioapic_num].iommu = iommu;
 	ir_ioapic[ir_ioapic_num].id    = scope->enumeration_id;
 	ir_ioapic_num++;
diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
index ffaac0e7e0c6..40f7ed115452 100644
--- a/include/acpi/actbl2.h
+++ b/include/acpi/actbl2.h
@@ -444,8 +444,8 @@ enum acpi_dmar_scope_type {
 };
 
 struct acpi_dmar_pci_path {
-	u8 dev;
-	u8 fn;
+	u8 device;
+	u8 function;
 };
 
 /*
-- 
cgit 


From 9187a415fd119c1d89a5ad2fd05513cd43699ebf Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 31 Oct 2013 09:30:28 +0800
Subject: ACPICA: Add new statistics interface.

This patch ports new counters and statistics interface, already
implemented in ACPICA upstream, to Linux.  That helps to reduce
source code differences between Linux and ACPICA upstream.

[rjw: Changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acglobal.h |  2 ++
 drivers/acpi/acpica/dsmethod.c |  1 +
 drivers/acpi/acpica/evsci.c    |  1 +
 drivers/acpi/acpica/utglobal.c | 12 ++++++++++++
 drivers/acpi/acpica/utxface.c  | 38 ++++++++++++++++++++++++++++++++++++++
 include/acpi/acpixf.h          |  2 ++
 include/acpi/actypes.h         | 10 ++++++++++
 7 files changed, 66 insertions(+)

diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h
index 0fba431f4fcb..e9f1fc7f99c7 100644
--- a/drivers/acpi/acpica/acglobal.h
+++ b/drivers/acpi/acpica/acglobal.h
@@ -406,7 +406,9 @@ extern u32 acpi_gbl_nesting_level;
 
 /* Event counters */
 
+ACPI_EXTERN u32 acpi_method_count;
 ACPI_EXTERN u32 acpi_gpe_count;
+ACPI_EXTERN u32 acpi_sci_count;
 ACPI_EXTERN u32 acpi_fixed_event_count[ACPI_NUM_FIXED_EVENTS];
 
 /* Support for dynamic control method tracing mechanism */
diff --git a/drivers/acpi/acpica/dsmethod.c b/drivers/acpi/acpica/dsmethod.c
index df3ea125507f..81a78ba84311 100644
--- a/drivers/acpi/acpica/dsmethod.c
+++ b/drivers/acpi/acpica/dsmethod.c
@@ -292,6 +292,7 @@ acpi_ds_begin_method_execution(struct acpi_namespace_node *method_node,
 	 * reentered one more time (even if it is the same thread)
 	 */
 	obj_desc->method.thread_count++;
+	acpi_method_count++;
 	return_ACPI_STATUS(status);
 
 cleanup:
diff --git a/drivers/acpi/acpica/evsci.c b/drivers/acpi/acpica/evsci.c
index 94d9ebddf575..9e9e3454d893 100644
--- a/drivers/acpi/acpica/evsci.c
+++ b/drivers/acpi/acpica/evsci.c
@@ -137,6 +137,7 @@ static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context)
 
 	interrupt_handled |= acpi_ev_sci_dispatch();
 
+	acpi_sci_count++;
 	return_UINT32(interrupt_handled);
 }
 
diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c
index 77caa4fbcdee..81f9a9584451 100644
--- a/drivers/acpi/acpica/utglobal.c
+++ b/drivers/acpi/acpica/utglobal.c
@@ -289,6 +289,16 @@ acpi_status acpi_ut_init_globals(void)
 
 	acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000;
 
+	/* Event counters */
+
+	acpi_method_count = 0;
+	acpi_sci_count = 0;
+	acpi_gpe_count = 0;
+
+	for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) {
+		acpi_fixed_event_count[i] = 0;
+	}
+
 #if (!ACPI_REDUCED_HARDWARE)
 
 	/* GPE/SCI support */
@@ -383,4 +393,6 @@ ACPI_EXPORT_SYMBOL(acpi_dbg_level)
 
 ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
 
+ACPI_EXPORT_SYMBOL(acpi_gpe_count)
+
 ACPI_EXPORT_SYMBOL(acpi_current_gpe_count)
diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c
index 891a37b69d3c..39869022a417 100644
--- a/drivers/acpi/acpica/utxface.c
+++ b/drivers/acpi/acpica/utxface.c
@@ -208,6 +208,44 @@ acpi_status acpi_get_system_info(struct acpi_buffer * out_buffer)
 
 ACPI_EXPORT_SYMBOL(acpi_get_system_info)
 
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_get_statistics
+ *
+ * PARAMETERS:  stats           - Where the statistics are returned
+ *
+ * RETURN:      status          - the status of the call
+ *
+ * DESCRIPTION: Get the contents of the various system counters
+ *
+ ******************************************************************************/
+acpi_status acpi_get_statistics(struct acpi_statistics *stats)
+{
+	ACPI_FUNCTION_TRACE(acpi_get_statistics);
+
+	/* Parameter validation */
+
+	if (!stats) {
+		return_ACPI_STATUS(AE_BAD_PARAMETER);
+	}
+
+	/* Various interrupt-based event counters */
+
+	stats->sci_count = acpi_sci_count;
+	stats->gpe_count = acpi_gpe_count;
+
+	ACPI_MEMCPY(stats->fixed_event_count, acpi_fixed_event_count,
+		    sizeof(acpi_fixed_event_count));
+
+	/* Other counters */
+
+	stats->method_count = acpi_method_count;
+
+	return_ACPI_STATUS(AE_OK);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_get_statistics)
+
 /*****************************************************************************
  *
  * FUNCTION:    acpi_install_initialization_handler
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index b2dcab0438c6..7def8cabfaba 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -140,6 +140,8 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_disable(void))
 acpi_status acpi_get_system_info(struct acpi_buffer *ret_buffer);
 #endif
 
+acpi_status acpi_get_statistics(struct acpi_statistics *stats);
+
 const char *acpi_format_exception(acpi_status exception);
 
 acpi_status acpi_purge_cached_objects(void);
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 8614bc139113..0e32b6cab6e6 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -973,6 +973,16 @@ struct acpi_system_info {
 	u32 debug_layer;
 };
 
+/*
+ * System statistics returned by acpi_get_statistics()
+ */
+struct acpi_statistics {
+	u32 sci_count;
+	u32 gpe_count;
+	u32 fixed_event_count[ACPI_NUM_FIXED_EVENTS];
+	u32 method_count;
+};
+
 /* Table Event Types */
 
 #define ACPI_TABLE_EVENT_LOAD           0x0
-- 
cgit 


From 130797a6c3f1421c10880a1681d6a9c57b80ef17 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 31 Oct 2013 09:30:36 +0800
Subject: ACPICA: Fix wrong object length returned by
 acpi_ut_get_simple_object_size().

The object length returned by acpi_ut_get_simple_object_size() should
be rounded up to the closest word boundary.

This patch ports a fix from ACPICA upstream to Linux.

[rjw: Changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/utobject.c | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/drivers/acpi/acpica/utobject.c b/drivers/acpi/acpica/utobject.c
index aa61f66ee861..cddb0ef5b9b7 100644
--- a/drivers/acpi/acpica/utobject.c
+++ b/drivers/acpi/acpica/utobject.c
@@ -461,25 +461,28 @@ acpi_ut_get_simple_object_size(union acpi_operand_object *internal_object,
 
 	ACPI_FUNCTION_TRACE_PTR(ut_get_simple_object_size, internal_object);
 
+	/* Start with the length of the (external) Acpi object */
+
+	length = sizeof(union acpi_object);
+
+	/* A NULL object is allowed, can be a legal uninitialized package element */
+
+	if (!internal_object) {
 	/*
-	 * Handle a null object (Could be a uninitialized package
-	 * element -- which is legal)
+		 * Object is NULL, just return the length of union acpi_object
+		 * (A NULL union acpi_object is an object of all zeroes.)
 	 */
-	if (!internal_object) {
-		*obj_length = sizeof(union acpi_object);
+		*obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length);
 		return_ACPI_STATUS(AE_OK);
 	}
 
-	/* Start with the length of the Acpi object */
-
-	length = sizeof(union acpi_object);
+	/* A Namespace Node should never appear here */
 
 	if (ACPI_GET_DESCRIPTOR_TYPE(internal_object) == ACPI_DESC_TYPE_NAMED) {
 
-		/* Object is a named object (reference), just return the length */
+		/* A namespace node should never get here */
 
-		*obj_length = ACPI_ROUND_UP_TO_NATIVE_WORD(length);
-		return_ACPI_STATUS(status);
+		return_ACPI_STATUS(AE_AML_INTERNAL);
 	}
 
 	/*
-- 
cgit 


From bd48d677670bb35548718a1fd54c2c114a449973 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 31 Oct 2013 09:30:42 +0800
Subject: ACPICA: Fix an ACPI_ALLOCATE_ZEROED() reversal.

ACPI_FREE() should always be used to free objects allocated with
ACPI_ALLOCATE_ZEROED(), so make acpi_ut_create_package_object() do
that.

This patch ports a fix from ACPICA upstream to Linux and helps to
reduce source code differences between them.

[rjw: Changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/utobject.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/acpica/utobject.c b/drivers/acpi/acpica/utobject.c
index cddb0ef5b9b7..d2a7b6123743 100644
--- a/drivers/acpi/acpica/utobject.c
+++ b/drivers/acpi/acpica/utobject.c
@@ -180,7 +180,7 @@ union acpi_operand_object *acpi_ut_create_package_object(u32 count)
 	package_elements = ACPI_ALLOCATE_ZEROED(((acpi_size) count +
 						 1) * sizeof(void *));
 	if (!package_elements) {
-		acpi_ut_remove_reference(package_desc);
+		ACPI_FREE(package_desc);
 		return_PTR(NULL);
 	}
 
-- 
cgit 


From 6208a3dd370c73101d28d761f562723755108803 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 31 Oct 2013 09:30:48 +0800
Subject: ACPICA: Cleanup useless memset invocations.

This patch removes unnecessary memset() invocations where
kmem_cache_zalloc() is used for allocating memory.  It also helps to
reduce source code differences between ACPICA upstream and Linux.

[rjw: Changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/utobject.c | 1 -
 drivers/acpi/acpica/utstate.c  | 1 -
 2 files changed, 2 deletions(-)

diff --git a/drivers/acpi/acpica/utobject.c b/drivers/acpi/acpica/utobject.c
index d2a7b6123743..13e045025c33 100644
--- a/drivers/acpi/acpica/utobject.c
+++ b/drivers/acpi/acpica/utobject.c
@@ -396,7 +396,6 @@ void *acpi_ut_allocate_object_desc_dbg(const char *module_name,
 
 	/* Mark the descriptor type */
 
-	memset(object, 0, sizeof(union acpi_operand_object));
 	ACPI_SET_DESCRIPTOR_TYPE(object, ACPI_DESC_TYPE_OPERAND);
 
 	ACPI_DEBUG_PRINT((ACPI_DB_ALLOCATIONS, "%p Size %X\n",
diff --git a/drivers/acpi/acpica/utstate.c b/drivers/acpi/acpica/utstate.c
index a6b729d4c1dc..03c4c2febd84 100644
--- a/drivers/acpi/acpica/utstate.c
+++ b/drivers/acpi/acpica/utstate.c
@@ -161,7 +161,6 @@ union acpi_generic_state *acpi_ut_create_generic_state(void)
 	if (state) {
 
 		/* Initialize */
-		memset(state, 0, sizeof(union acpi_generic_state));
 		state->common.descriptor_type = ACPI_DESC_TYPE_STATE;
 	}
 
-- 
cgit 


From 2faa046485721c05ad3999bc6c8f6ced7017ef27 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 31 Oct 2013 09:30:53 +0800
Subject: ACPICA: Remove dead AOPOBJ_INVALID check.

Reversion commit 7cb7f45c7fee (Revert "ACPICA: Remove obsolete
acpi_os_validate_address interface") restored a piece of dead code
related to an obselete AOPOBJ_INVALID flag.  Remove that code again.

This helps to reduce source code differences between Linux and ACPICA
upstream.

[rjw: Changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/exfldio.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/acpi/acpica/exfldio.c b/drivers/acpi/acpica/exfldio.c
index 8ab01b613a18..49fb742d61b9 100644
--- a/drivers/acpi/acpica/exfldio.c
+++ b/drivers/acpi/acpica/exfldio.c
@@ -123,12 +123,6 @@ acpi_ex_setup_region(union acpi_operand_object *obj_desc,
 		}
 	}
 
-	/* Exit if Address/Length have been disallowed by the host OS */
-
-	if (rgn_desc->common.flags & AOPOBJ_INVALID) {
-		return_ACPI_STATUS(AE_AML_ILLEGAL_ADDRESS);
-	}
-
 	/*
 	 * Exit now for SMBus, GSBus or IPMI address space, it has a non-linear
 	 * address space and the request cannot be directly validated
-- 
cgit 


From dba47d3af92bb2e443cdb689422bf30b498bd209 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 31 Oct 2013 09:31:00 +0800
Subject: ACPICA: Fix cached object deletion code.

Function acpi_ut_delete_caches() is meant to be used to implement
ACPI_ALLOCATE()/ACPI_FREE() mechanisms in ACPICA, so it should call
acpi_os_free() rather than ACPI_FREE().  Linux is not affected by this
issue as it uses kmem_cache instead of the ACPICA local cache, but
the change helps to reduce source code differences between Linux and
ACPICA upstream.

[rjw: Changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/utalloc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/acpica/utalloc.c b/drivers/acpi/acpica/utalloc.c
index d84479610971..814267f52715 100644
--- a/drivers/acpi/acpica/utalloc.c
+++ b/drivers/acpi/acpica/utalloc.c
@@ -209,10 +209,10 @@ acpi_status acpi_ut_delete_caches(void)
 
 	/* Free memory lists */
 
-	ACPI_FREE(acpi_gbl_global_list);
+	acpi_os_free(acpi_gbl_global_list);
 	acpi_gbl_global_list = NULL;
 
-	ACPI_FREE(acpi_gbl_ns_node_list);
+	acpi_os_free(acpi_gbl_ns_node_list);
 	acpi_gbl_ns_node_list = NULL;
 #endif
 
-- 
cgit 


From a4fb614ad01506aa45f894f0f1c912e99cc7fdf1 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 31 Oct 2013 09:31:06 +0800
Subject: ACPICA: Update compilation environment settings.

This patch updates architecture specific environment settings to reduce
source differences between Linux and ACPICA upstream.

This patch does not affect the generation of the Linux kernel binary.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/acpi/platform/acenv.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h
index ef04b36ca6ed..9b3966c35b33 100644
--- a/include/acpi/platform/acenv.h
+++ b/include/acpi/platform/acenv.h
@@ -147,6 +147,9 @@
 #if defined(_LINUX) || defined(__linux__)
 #include <acpi/platform/aclinux.h>
 
+#elif defined(_APPLE) || defined(__APPLE__)
+#include "acmacosx.h"
+
 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
 #include "acfreebsd.h"
 
-- 
cgit 


From efb835429fff1488e4718138cdf5bc855a6762a4 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 31 Oct 2013 09:31:12 +0800
Subject: ACPICA: Update acpidump related header file changes.

This patch updates header files used by acpidump to reduce the
source code differences between Linux and ACPICA upstream.

This patch does not affect the generation of the Linux kernel binary.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/acpi/actypes.h        | 8 ++++++++
 include/acpi/platform/acenv.h | 5 +++--
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index 0e32b6cab6e6..809b1a0fee7f 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -315,6 +315,14 @@ typedef u32 acpi_physical_address;
 #define ACPI_EXPORT_SYMBOL(symbol)
 #endif
 
+/*
+ * Compiler/Clibrary-dependent debug initialization. Used for ACPICA
+ * utilities only.
+ */
+#ifndef ACPI_DEBUG_INITIALIZE
+#define ACPI_DEBUG_INITIALIZE()
+#endif
+
 /*******************************************************************************
  *
  * Configuration
diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h
index 9b3966c35b33..974d3ef7c141 100644
--- a/include/acpi/platform/acenv.h
+++ b/include/acpi/platform/acenv.h
@@ -96,10 +96,11 @@
 #endif
 
 /*
- * acpi_bin/acpi_help/acpi_src configuration. All single threaded, with
- * no debug output.
+ * acpi_bin/acpi_dump/acpi_src/acpi_xtract configuration. All single
+ * threaded, with no debug output.
  */
 #if (defined ACPI_BIN_APP)   || \
+	(defined ACPI_DUMP_APP)  || \
 	(defined ACPI_SRC_APP)   || \
 	(defined ACPI_XTRACT_APP)
 #define ACPI_APPLICATION
-- 
cgit 


From 40bce100cafb945f1fb5475a70628b4379c74f38 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 31 Oct 2013 09:31:18 +0800
Subject: ACPICA: Cleanup asmlinkage for ACPICA APIs.

Add an asmlinkage wrapper around acpi_enter_sleep_state() to prevent
an empty stub from being called by assmebly code for ACPI_REDUCED_HARDWARE
set.

As arch/x86/kernel/acpi/wakeup_xx.S is only compiled when CONFIG_ACPI=y
and there are no users of ACPI_HARDWARE_REDUCED, currently this is in
fact not a real issue, but a cleanup to reduce source code differences
between Linux and ACPICA upstream.

[rjw: Changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/x86/kernel/acpi/sleep.c     | 11 +++++++++++
 arch/x86/kernel/acpi/sleep.h     |  2 ++
 arch/x86/kernel/acpi/wakeup_32.S |  2 +-
 arch/x86/kernel/acpi/wakeup_64.S |  2 +-
 drivers/acpi/acpica/hwxfsleep.c  |  4 ++--
 include/acpi/acpixf.h            |  4 ++--
 6 files changed, 19 insertions(+), 6 deletions(-)

diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c
index 33120100ff5e..3a2ae4c88948 100644
--- a/arch/x86/kernel/acpi/sleep.c
+++ b/arch/x86/kernel/acpi/sleep.c
@@ -25,6 +25,17 @@ unsigned long acpi_realmode_flags;
 static char temp_stack[4096];
 #endif
 
+/**
+ * x86_acpi_enter_sleep_state - enter sleep state
+ * @state: Sleep state to enter.
+ *
+ * Wrapper around acpi_enter_sleep_state() to be called by assmebly.
+ */
+acpi_status asmlinkage x86_acpi_enter_sleep_state(u8 state)
+{
+	return acpi_enter_sleep_state(state);
+}
+
 /**
  * x86_acpi_suspend_lowlevel - save kernel state
  *
diff --git a/arch/x86/kernel/acpi/sleep.h b/arch/x86/kernel/acpi/sleep.h
index c9c2c982d5e4..65c7b606b606 100644
--- a/arch/x86/kernel/acpi/sleep.h
+++ b/arch/x86/kernel/acpi/sleep.h
@@ -17,3 +17,5 @@ extern void wakeup_long64(void);
 extern void do_suspend_lowlevel(void);
 
 extern int x86_acpi_suspend_lowlevel(void);
+
+acpi_status asmlinkage x86_acpi_enter_sleep_state(u8 state);
diff --git a/arch/x86/kernel/acpi/wakeup_32.S b/arch/x86/kernel/acpi/wakeup_32.S
index d1daa66ab162..665c6b7d2ea9 100644
--- a/arch/x86/kernel/acpi/wakeup_32.S
+++ b/arch/x86/kernel/acpi/wakeup_32.S
@@ -73,7 +73,7 @@ ENTRY(do_suspend_lowlevel)
 	call	save_processor_state
 	call	save_registers
 	pushl	$3
-	call	acpi_enter_sleep_state
+	call	x86_acpi_enter_sleep_state
 	addl	$4, %esp
 
 #	In case of S3 failure, we'll emerge here.  Jump
diff --git a/arch/x86/kernel/acpi/wakeup_64.S b/arch/x86/kernel/acpi/wakeup_64.S
index 8ea5164cbd04..ae693b51ed8e 100644
--- a/arch/x86/kernel/acpi/wakeup_64.S
+++ b/arch/x86/kernel/acpi/wakeup_64.S
@@ -73,7 +73,7 @@ ENTRY(do_suspend_lowlevel)
 	addq	$8, %rsp
 	movl	$3, %edi
 	xorl	%eax, %eax
-	call	acpi_enter_sleep_state
+	call	x86_acpi_enter_sleep_state
 	/* in case something went wrong, restore the machine status and go on */
 	jmp	resume_point
 
diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
index 4895fca102dd..15dddc10fc9b 100644
--- a/drivers/acpi/acpica/hwxfsleep.c
+++ b/drivers/acpi/acpica/hwxfsleep.c
@@ -167,7 +167,7 @@ ACPI_EXPORT_SYMBOL(acpi_set_firmware_waking_vector64)
  *              THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
  *
  ******************************************************************************/
-acpi_status asmlinkage acpi_enter_sleep_state_s4bios(void)
+acpi_status acpi_enter_sleep_state_s4bios(void)
 {
 	u32 in_value;
 	acpi_status status;
@@ -361,7 +361,7 @@ ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_prep)
  *              THIS FUNCTION MUST BE CALLED WITH INTERRUPTS DISABLED
  *
  ******************************************************************************/
-acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
+acpi_status acpi_enter_sleep_state(u8 sleep_state)
 {
 	acpi_status status;
 
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 7def8cabfaba..00725f44ac89 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -510,9 +510,9 @@ acpi_get_sleep_type_data(u8 sleep_state, u8 *slp_typ_a, u8 *slp_typ_b);
 
 acpi_status acpi_enter_sleep_state_prep(u8 sleep_state);
 
-acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state);
+acpi_status acpi_enter_sleep_state(u8 sleep_state);
 
-ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status asmlinkage acpi_enter_sleep_state_s4bios(void))
+ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enter_sleep_state_s4bios(void))
 
 acpi_status acpi_leave_sleep_state_prep(u8 sleep_state);
 
-- 
cgit 


From 45c9f78b25ad9ce6cdf259ac4b652e6783adcb23 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 31 Oct 2013 09:31:24 +0800
Subject: ACPICA: Add __init for ACPICA initializers/finalizers.

This patch adds __init to the ACPICA documented initializers:
  acpi_initialize_tables()
  acpi_initialize_subsystem()
  acpi_load_tables()
  acpi_enable_subsystem()
  acpi_initialize_objects()
and to acpi_reallocate_root_table(), acpi_find_root_pointer() which
are also meant to be called only during initialization.

This patch adds __init to the ACPICA documented finalizer:
  acpi_terminate()
as this finalizer is only called in __init function now.

This change helps to reduce source code differences between
ACPICA upstream and Linux.

[rjw: Changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/tbutils.c  |  3 +--
 drivers/acpi/acpica/tbxface.c  |  2 +-
 drivers/acpi/acpica/tbxfload.c |  2 +-
 drivers/acpi/acpica/tbxfroot.c |  2 +-
 drivers/acpi/acpica/utxface.c  |  2 +-
 drivers/acpi/acpica/utxfinit.c |  6 +++---
 include/acpi/acpixf.h          | 14 +++++++-------
 7 files changed, 15 insertions(+), 16 deletions(-)

diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c
index 43ffe21c7b26..3d6bb83aa7e7 100644
--- a/drivers/acpi/acpica/tbutils.c
+++ b/drivers/acpi/acpica/tbutils.c
@@ -430,8 +430,7 @@ acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size)
  *
  ******************************************************************************/
 
-acpi_status __init
-acpi_tb_parse_root_table(acpi_physical_address rsdp_address)
+acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address)
 {
 	struct acpi_table_rsdp *rsdp;
 	u32 table_entry_size;
diff --git a/drivers/acpi/acpica/tbxface.c b/drivers/acpi/acpica/tbxface.c
index 7e63090742dc..db826eaadd1c 100644
--- a/drivers/acpi/acpica/tbxface.c
+++ b/drivers/acpi/acpica/tbxface.c
@@ -164,7 +164,7 @@ ACPI_EXPORT_SYMBOL_INIT(acpi_initialize_tables)
  *              kernel.
  *
  ******************************************************************************/
-acpi_status acpi_reallocate_root_table(void)
+acpi_status __init acpi_reallocate_root_table(void)
 {
 	acpi_status status;
 
diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c
index b1e1edd5703a..60b5a871833c 100644
--- a/drivers/acpi/acpica/tbxfload.c
+++ b/drivers/acpi/acpica/tbxfload.c
@@ -66,7 +66,7 @@ static acpi_status acpi_tb_load_namespace(void);
  *
  ******************************************************************************/
 
-acpi_status acpi_load_tables(void)
+acpi_status __init acpi_load_tables(void)
 {
 	acpi_status status;
 
diff --git a/drivers/acpi/acpica/tbxfroot.c b/drivers/acpi/acpica/tbxfroot.c
index 1c95fabbe6a4..e4e1468877c3 100644
--- a/drivers/acpi/acpica/tbxfroot.c
+++ b/drivers/acpi/acpica/tbxfroot.c
@@ -111,7 +111,7 @@ acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp)
  *
  ******************************************************************************/
 
-acpi_status acpi_find_root_pointer(acpi_size *table_address)
+acpi_status __init acpi_find_root_pointer(acpi_size *table_address)
 {
 	u8 *table_ptr;
 	u8 *mem_rover;
diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c
index 39869022a417..be322c83643a 100644
--- a/drivers/acpi/acpica/utxface.c
+++ b/drivers/acpi/acpica/utxface.c
@@ -61,7 +61,7 @@ ACPI_MODULE_NAME("utxface")
  * DESCRIPTION: Shutdown the ACPICA subsystem and release all resources.
  *
  ******************************************************************************/
-acpi_status acpi_terminate(void)
+acpi_status __init acpi_terminate(void)
 {
 	acpi_status status;
 
diff --git a/drivers/acpi/acpica/utxfinit.c b/drivers/acpi/acpica/utxfinit.c
index ff6f4d194136..75efea0539c1 100644
--- a/drivers/acpi/acpica/utxfinit.c
+++ b/drivers/acpi/acpica/utxfinit.c
@@ -65,7 +65,7 @@ ACPI_MODULE_NAME("utxfinit")
  *              called, so any early initialization belongs here.
  *
  ******************************************************************************/
-acpi_status acpi_initialize_subsystem(void)
+acpi_status __init acpi_initialize_subsystem(void)
 {
 	acpi_status status;
 
@@ -140,7 +140,7 @@ ACPI_EXPORT_SYMBOL_INIT(acpi_initialize_subsystem)
  *              Puts system into ACPI mode if it isn't already.
  *
  ******************************************************************************/
-acpi_status acpi_enable_subsystem(u32 flags)
+acpi_status __init acpi_enable_subsystem(u32 flags)
 {
 	acpi_status status = AE_OK;
 
@@ -245,7 +245,7 @@ ACPI_EXPORT_SYMBOL_INIT(acpi_enable_subsystem)
  *              objects and executing AML code for Regions, buffers, etc.
  *
  ******************************************************************************/
-acpi_status acpi_initialize_objects(u32 flags)
+acpi_status __init acpi_initialize_objects(u32 flags)
 {
 	acpi_status status = AE_OK;
 
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 00725f44ac89..d8f9457755b4 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -114,17 +114,17 @@ extern u8 acpi_gbl_disable_ssdt_table_load;
 /*
  * Initialization
  */
-acpi_status
+acpi_status __init
 acpi_initialize_tables(struct acpi_table_desc *initial_storage,
 		       u32 initial_table_count, u8 allow_resize);
 
 acpi_status __init acpi_initialize_subsystem(void);
 
-acpi_status acpi_enable_subsystem(u32 flags);
+acpi_status __init acpi_enable_subsystem(u32 flags);
 
-acpi_status acpi_initialize_objects(u32 flags);
+acpi_status __init acpi_initialize_objects(u32 flags);
 
-acpi_status acpi_terminate(void);
+acpi_status __init acpi_terminate(void);
 
 /*
  * Miscellaneous global interfaces
@@ -168,14 +168,14 @@ acpi_status acpi_load_table(struct acpi_table_header *table);
 
 acpi_status acpi_unload_parent_table(acpi_handle object);
 
-acpi_status acpi_load_tables(void);
+acpi_status __init acpi_load_tables(void);
 
 /*
  * ACPI table manipulation interfaces
  */
-acpi_status acpi_reallocate_root_table(void);
+acpi_status __init acpi_reallocate_root_table(void);
 
-acpi_status acpi_find_root_pointer(acpi_size * rsdp_address);
+acpi_status __init acpi_find_root_pointer(acpi_size *rsdp_address);
 
 acpi_status acpi_unload_table_id(acpi_owner_id id);
 
-- 
cgit 


From 600d525869c45a6b3ce1fa5e58281376c5a2dab2 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 3 Oct 2013 11:46:23 +0200
Subject: dma: pl330: Remove unnecessary amba_set_drvdata()

Driver core clears the driver data to NULL after device_release
or on probe failure, so just remove it from here.

Driver core change:
"device-core: Ensure drvdata = NULL when no driver is bound"
(sha1: 0998d0631001288a5974afc0b2a5f568bcdecb4d)

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/pl330.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 96de393aaf4f..75328f9870d2 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -3036,8 +3036,6 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
 
 	return 0;
 probe_err3:
-	amba_set_drvdata(adev, NULL);
-
 	/* Idle the DMAC */
 	list_for_each_entry_safe(pch, _p, &pdmac->ddma.channels,
 			chan.device_node) {
@@ -3068,7 +3066,6 @@ static int pl330_remove(struct amba_device *adev)
 		of_dma_controller_free(adev->dev.of_node);
 
 	dma_async_device_unregister(&pdmac->ddma);
-	amba_set_drvdata(adev, NULL);
 
 	/* Idle the DMAC */
 	list_for_each_entry_safe(pch, _p, &pdmac->ddma.channels,
-- 
cgit 


From 68788979c2fbb1ce8691757b9d27231b4c5d08a8 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Wed, 26 Jun 2013 23:49:11 +0100
Subject: DMA-API: media: dt3155v4l: replace
 dma_set_mask()+dma_set_coherent_mask() with new helper

Replace the following sequence:

	dma_set_mask(dev, mask);
	dma_set_coherent_mask(dev, mask);

with a call to the new helper dma_set_mask_and_coherent().

Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/staging/media/dt3155v4l/dt3155v4l.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/staging/media/dt3155v4l/dt3155v4l.c b/drivers/staging/media/dt3155v4l/dt3155v4l.c
index 90d6ac469355..081407be33ab 100644
--- a/drivers/staging/media/dt3155v4l/dt3155v4l.c
+++ b/drivers/staging/media/dt3155v4l/dt3155v4l.c
@@ -901,10 +901,7 @@ dt3155_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	int err;
 	struct dt3155_priv *pd;
 
-	err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
-	if (err)
-		return -ENODEV;
-	err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 	if (err)
 		return -ENODEV;
 	pd = kzalloc(sizeof(*pd), GFP_KERNEL);
-- 
cgit 


From d288059e0aedcee0d55074b81ef286c7f255e146 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Wed, 26 Jun 2013 23:49:11 +0100
Subject: DMA-API: usb: bcma: replace dma_set_mask()+dma_set_coherent_mask()
 with new helper

Replace the following sequence:

	dma_set_mask(dev, mask);
	dma_set_coherent_mask(dev, mask);

with a call to the new helper dma_set_mask_and_coherent().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/usb/host/bcma-hcd.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/usb/host/bcma-hcd.c b/drivers/usb/host/bcma-hcd.c
index df13d425e9c5..205f4a336583 100644
--- a/drivers/usb/host/bcma-hcd.c
+++ b/drivers/usb/host/bcma-hcd.c
@@ -227,8 +227,7 @@ static int bcma_hcd_probe(struct bcma_device *dev)
 
 	/* TODO: Probably need checks here; is the core connected? */
 
-	if (dma_set_mask(dev->dma_dev, DMA_BIT_MASK(32)) ||
-	    dma_set_coherent_mask(dev->dma_dev, DMA_BIT_MASK(32)))
+	if (dma_set_mask_and_coherent(dev->dma_dev, DMA_BIT_MASK(32)))
 		return -EOPNOTSUPP;
 
 	usb_dev = kzalloc(sizeof(struct bcma_hcd_device), GFP_KERNEL);
-- 
cgit 


From 01edb5e12c7fd2170b1969a455442e8fd17cfe54 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Wed, 26 Jun 2013 23:49:11 +0100
Subject: DMA-API: usb: ssb-hcd: replace dma_set_mask()+dma_set_coherent_mask()
 with new helper

Replace the following sequence:

	dma_set_mask(dev, mask);
	dma_set_coherent_mask(dev, mask);

with a call to the new helper dma_set_mask_and_coherent().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/usb/host/ssb-hcd.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/usb/host/ssb-hcd.c b/drivers/usb/host/ssb-hcd.c
index 74af2c6287d2..0196f766df73 100644
--- a/drivers/usb/host/ssb-hcd.c
+++ b/drivers/usb/host/ssb-hcd.c
@@ -163,8 +163,7 @@ static int ssb_hcd_probe(struct ssb_device *dev,
 
 	/* TODO: Probably need checks here; is the core connected? */
 
-	if (dma_set_mask(dev->dma_dev, DMA_BIT_MASK(32)) ||
-	    dma_set_coherent_mask(dev->dma_dev, DMA_BIT_MASK(32)))
+	if (dma_set_mask_and_coherent(dev->dma_dev, DMA_BIT_MASK(32)))
 		return -EOPNOTSUPP;
 
 	usb_dev = kzalloc(sizeof(struct ssb_hcd_device), GFP_KERNEL);
-- 
cgit 


From 446b2a9380b64b9d7410d86ee8226031e03645cf Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 27 Jun 2013 10:25:33 +0100
Subject: DMA-API: amba: get rid of separate dma_mask

AMBA Primecell devices always treat streaming and coherent DMA exactly
the same, so there's no point in having the masks separated.

Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/amba/bus.c       | 6 +-----
 drivers/of/platform.c    | 3 ---
 include/linux/amba/bus.h | 2 --
 3 files changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
index c6707278a6bb..c4876ac9151a 100644
--- a/drivers/amba/bus.c
+++ b/drivers/amba/bus.c
@@ -552,7 +552,6 @@ amba_aphb_device_add(struct device *parent, const char *name,
 	if (!dev)
 		return ERR_PTR(-ENOMEM);
 
-	dev->dma_mask = dma_mask;
 	dev->dev.coherent_dma_mask = dma_mask;
 	dev->irq[0] = irq1;
 	dev->irq[1] = irq2;
@@ -619,7 +618,7 @@ static void amba_device_initialize(struct amba_device *dev, const char *name)
 		dev_set_name(&dev->dev, "%s", name);
 	dev->dev.release = amba_device_release;
 	dev->dev.bus = &amba_bustype;
-	dev->dev.dma_mask = &dev->dma_mask;
+	dev->dev.dma_mask = &dev->dev.coherent_dma_mask;
 	dev->res.name = dev_name(&dev->dev);
 }
 
@@ -663,9 +662,6 @@ int amba_device_register(struct amba_device *dev, struct resource *parent)
 	amba_device_initialize(dev, dev->dev.init_name);
 	dev->dev.init_name = NULL;
 
-	if (!dev->dev.coherent_dma_mask && dev->dma_mask)
-		dev_warn(&dev->dev, "coherent dma mask is unset\n");
-
 	return amba_device_add(dev, parent);
 }
 
diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 9b439ac63d8e..54382ba4a6e9 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -284,9 +284,6 @@ static struct amba_device *of_amba_device_create(struct device_node *node,
 	else
 		of_device_make_bus_id(&dev->dev);
 
-	/* setup amba-specific device info */
-	dev->dma_mask = ~0;
-
 	/* Allow the HW Peripheral ID to be overridden */
 	prop = of_get_property(node, "arm,primecell-periphid", NULL);
 	if (prop)
diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h
index 43ec7e247a80..682df0e1954a 100644
--- a/include/linux/amba/bus.h
+++ b/include/linux/amba/bus.h
@@ -30,7 +30,6 @@ struct amba_device {
 	struct device		dev;
 	struct resource		res;
 	struct clk		*pclk;
-	u64			dma_mask;
 	unsigned int		periphid;
 	unsigned int		irq[AMBA_NR_IRQS];
 };
@@ -131,7 +130,6 @@ struct amba_device name##_device = {				\
 struct amba_device name##_device = {				\
 	.dev = __AMBA_DEV(busid, data, ~0ULL),			\
 	.res = DEFINE_RES_MEM(base, SZ_4K),			\
-	.dma_mask = ~0ULL,					\
 	.irq = irqs,						\
 	.periphid = id,						\
 }
-- 
cgit 


From de1a2419592d488a8e80bcc396c2be8ce06b71c3 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 27 Jun 2013 10:29:32 +0100
Subject: DMA-API: dma: pl08x: add dma_set_mask_and_coherent() call

The DMA API requires drivers to call the appropriate dma_set_mask()
functions before doing any DMA mapping.  Add this required call to
the AMBA PL08x driver.

Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/dma/amba-pl08x.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index fce46c5bf1c7..e51a9832ef0d 100644
--- a/drivers/dma/amba-pl08x.c
+++ b/drivers/dma/amba-pl08x.c
@@ -2055,6 +2055,11 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id)
 	if (ret)
 		return ret;
 
+	/* Ensure that we can do DMA */
+	ret = dma_set_mask_and_coherent(&adev->dev, DMA_BIT_MASK(32));
+	if (ret)
+		goto out_no_pl08x;
+
 	/* Create the driver state holder */
 	pl08x = kzalloc(sizeof(*pl08x), GFP_KERNEL);
 	if (!pl08x) {
-- 
cgit 


From 64113016a456399d3fe4849a4f6593fb1cd48f53 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 27 Jun 2013 10:29:32 +0100
Subject: DMA-API: dma: pl330: add dma_set_mask_and_coherent() call

The DMA API requires drivers to call the appropriate dma_set_mask()
functions before doing any DMA mapping.  Add this required call to
the AMBA PL330 driver.

Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/dma/pl330.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index a562d24d20bf..df8b10fd1726 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2903,6 +2903,10 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
 
 	pdat = dev_get_platdata(&adev->dev);
 
+	ret = dma_set_mask_and_coherent(&adev->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
+
 	/* Allocate a new DMAC and its Channels */
 	pdmac = devm_kzalloc(&adev->dev, sizeof(*pdmac), GFP_KERNEL);
 	if (!pdmac) {
-- 
cgit 


From e0a8ba2581ba832adac729d9ba48ee8561d65dc0 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 27 Jun 2013 10:29:32 +0100
Subject: DMA-API: video: clcd: add dma_set_mask_and_coherent() call

The DMA API requires drivers to call the appropriate dma_set_mask()
functions before doing any DMA mapping.  Add this required call to
the AMBA PL08x driver.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/video/amba-clcd.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/video/amba-clcd.c b/drivers/video/amba-clcd.c
index 0a2cce7285be..afe4702a5528 100644
--- a/drivers/video/amba-clcd.c
+++ b/drivers/video/amba-clcd.c
@@ -10,6 +10,7 @@
  *
  *  ARM PrimeCell PL110 Color LCD Controller
  */
+#include <linux/dma-mapping.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/errno.h>
@@ -551,6 +552,10 @@ static int clcdfb_probe(struct amba_device *dev, const struct amba_id *id)
 	if (!board)
 		return -EINVAL;
 
+	ret = dma_set_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32));
+	if (ret)
+		goto out;
+
 	ret = amba_request_regions(dev, NULL);
 	if (ret) {
 		printk(KERN_ERR "CLCD: unable to reserve regs region\n");
-- 
cgit 


From 4ffb4318b044d175709567402a65f8ebb19f5d3b Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 27 Jun 2013 11:10:40 +0100
Subject: DMA-API: usb: ohci-sa1111: add a note about DMA masks

Add a comment to explain why this driver doesn't call any of the DMA
API dma_set_mask() functions.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/usb/host/ohci-sa1111.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/usb/host/ohci-sa1111.c b/drivers/usb/host/ohci-sa1111.c
index 17b2a7dad77b..aa9e127bbe71 100644
--- a/drivers/usb/host/ohci-sa1111.c
+++ b/drivers/usb/host/ohci-sa1111.c
@@ -185,6 +185,12 @@ static int ohci_hcd_sa1111_probe(struct sa1111_dev *dev)
 	if (usb_disabled())
 		return -ENODEV;
 
+	/*
+	 * We don't call dma_set_mask_and_coherent() here because the
+	 * DMA mask has already been appropraitely setup by the core
+	 * SA-1111 bus code (which includes bug workarounds.)
+	 */
+
 	hcd = usb_create_hcd(&ohci_sa1111_hc_driver, &dev->dev, "sa1111");
 	if (!hcd)
 		return -ENOMEM;
-- 
cgit 


From fa6a8d6d65b19ab44e5244ea499bcd553cc72343 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 27 Jun 2013 12:21:45 +0100
Subject: DMA-API: provide a helper to setup DMA masks

Many drivers contain code such as:

	dev->dma_mask = &dev->coherent_dma_mask;
	dev->coherent_dma_mask = MASK;

Let's move this pattern out of drivers and have the DMA API provide a
helper for it.  This helper uses dma_set_mask_and_coherent() to allow
platform issues to be properly dealt with via dma_set_mask()/
dma_is_supported().

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 include/linux/dma-mapping.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index ec951f98e3d9..27d1421ad42c 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -111,6 +111,16 @@ static inline int dma_set_mask_and_coherent(struct device *dev, u64 mask)
 	return rc;
 }
 
+/*
+ * Similar to the above, except it deals with the case where the device
+ * does not have dev->dma_mask appropriately setup.
+ */
+static inline int dma_coerce_mask_and_coherent(struct device *dev, u64 mask)
+{
+	dev->dma_mask = &dev->coherent_dma_mask;
+	return dma_set_mask_and_coherent(dev, mask);
+}
+
 extern u64 dma_get_required_mask(struct device *dev);
 
 static inline unsigned int dma_get_max_seg_size(struct device *dev)
-- 
cgit 


From c9bd5e690a439df044678d89e89e380cf9db7930 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 27 Jun 2013 12:53:37 +0100
Subject: DMA-API: sound: fix dma mask handling in a lot of drivers

This code sequence is unsafe in modules:

static u64 mask = DMA_BIT_MASK(something);
...
	if (!dev->dma_mask)
		dev->dma_mask = &mask;

as if a module is reloaded, the mask will be pointing at the original
module's mask address, and this can lead to oopses.  Moreover, they
all follow this with:

	if (!dev->coherent_dma_mask)
		dev->coherent_dma_mask = mask;

where 'mask' is the same value as the statically defined mask, and this
bypasses the architecture's check on whether the DMA mask is possible.

Fix these issues by using the new dma_coerce_coherent_and_mask()
function.

Acked-by: Mark Brown <broonie@linaro.org>
Acked-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 sound/arm/pxa2xx-pcm.c              | 10 ++++------
 sound/soc/atmel/atmel-pcm.c         | 11 ++++-------
 sound/soc/blackfin/bf5xx-ac97-pcm.c | 11 ++++-------
 sound/soc/blackfin/bf5xx-i2s-pcm.c  | 10 ++++------
 sound/soc/davinci/davinci-pcm.c     |  9 +++------
 sound/soc/fsl/fsl_dma.c             |  9 +++------
 sound/soc/fsl/imx-pcm-fiq.c         | 12 +++++-------
 sound/soc/fsl/mpc5200_dma.c         | 10 ++++------
 sound/soc/jz4740/jz4740-pcm.c       | 12 ++++--------
 sound/soc/kirkwood/kirkwood-dma.c   |  9 +++------
 sound/soc/nuc900/nuc900-pcm.c       |  9 ++++-----
 sound/soc/omap/omap-pcm.c           | 11 ++++-------
 sound/soc/pxa/pxa2xx-pcm.c          | 11 ++++-------
 sound/soc/s6000/s6000-pcm.c         |  9 +++------
 sound/soc/samsung/dma.c             | 11 ++++-------
 sound/soc/samsung/idma.c            | 11 ++++-------
 16 files changed, 61 insertions(+), 104 deletions(-)

diff --git a/sound/arm/pxa2xx-pcm.c b/sound/arm/pxa2xx-pcm.c
index 69a2455b4472..e6c727b317fb 100644
--- a/sound/arm/pxa2xx-pcm.c
+++ b/sound/arm/pxa2xx-pcm.c
@@ -11,6 +11,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/dma-mapping.h>
 #include <linux/dmaengine.h>
 
 #include <sound/core.h>
@@ -83,8 +84,6 @@ static struct snd_pcm_ops pxa2xx_pcm_ops = {
 	.mmap		= pxa2xx_pcm_mmap,
 };
 
-static u64 pxa2xx_pcm_dmamask = 0xffffffff;
-
 int pxa2xx_pcm_new(struct snd_card *card, struct pxa2xx_pcm_client *client,
 		   struct snd_pcm **rpcm)
 {
@@ -100,10 +99,9 @@ int pxa2xx_pcm_new(struct snd_card *card, struct pxa2xx_pcm_client *client,
 	pcm->private_data = client;
 	pcm->private_free = pxa2xx_pcm_free_dma_buffers;
 
-	if (!card->dev->dma_mask)
-		card->dev->dma_mask = &pxa2xx_pcm_dmamask;
-	if (!card->dev->coherent_dma_mask)
-		card->dev->coherent_dma_mask = 0xffffffff;
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (ret)
+		goto out;
 
 	if (play) {
 		int stream = SNDRV_PCM_STREAM_PLAYBACK;
diff --git a/sound/soc/atmel/atmel-pcm.c b/sound/soc/atmel/atmel-pcm.c
index 3109db7b9017..fbb87e3f1019 100644
--- a/sound/soc/atmel/atmel-pcm.c
+++ b/sound/soc/atmel/atmel-pcm.c
@@ -68,18 +68,15 @@ int atmel_pcm_mmap(struct snd_pcm_substream *substream,
 }
 EXPORT_SYMBOL_GPL(atmel_pcm_mmap);
 
-static u64 atmel_pcm_dmamask = DMA_BIT_MASK(32);
-
 int atmel_pcm_new(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_card *card = rtd->card->snd_card;
 	struct snd_pcm *pcm = rtd->pcm;
-	int ret = 0;
+	int ret;
 
-	if (!card->dev->dma_mask)
-		card->dev->dma_mask = &atmel_pcm_dmamask;
-	if (!card->dev->coherent_dma_mask)
-		card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
 	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
 		pr_debug("atmel-pcm: allocating PCM playback DMA buffer\n");
diff --git a/sound/soc/blackfin/bf5xx-ac97-pcm.c b/sound/soc/blackfin/bf5xx-ac97-pcm.c
index 53f84085bf1f..1d4c676eb6cc 100644
--- a/sound/soc/blackfin/bf5xx-ac97-pcm.c
+++ b/sound/soc/blackfin/bf5xx-ac97-pcm.c
@@ -415,19 +415,16 @@ static void bf5xx_pcm_free_dma_buffers(struct snd_pcm *pcm)
 	}
 }
 
-static u64 bf5xx_pcm_dmamask = DMA_BIT_MASK(32);
-
 static int bf5xx_pcm_ac97_new(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_card *card = rtd->card->snd_card;
 	struct snd_pcm *pcm = rtd->pcm;
-	int ret = 0;
+	int ret;
 
 	pr_debug("%s enter\n", __func__);
-	if (!card->dev->dma_mask)
-		card->dev->dma_mask = &bf5xx_pcm_dmamask;
-	if (!card->dev->coherent_dma_mask)
-		card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
 	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
 		ret = bf5xx_pcm_preallocate_dma_buffer(pcm,
diff --git a/sound/soc/blackfin/bf5xx-i2s-pcm.c b/sound/soc/blackfin/bf5xx-i2s-pcm.c
index 9cb4a80df98e..2a5b43417fd5 100644
--- a/sound/soc/blackfin/bf5xx-i2s-pcm.c
+++ b/sound/soc/blackfin/bf5xx-i2s-pcm.c
@@ -323,18 +323,16 @@ static struct snd_pcm_ops bf5xx_pcm_i2s_ops = {
 	.silence	= bf5xx_pcm_silence,
 };
 
-static u64 bf5xx_pcm_dmamask = DMA_BIT_MASK(32);
-
 static int bf5xx_pcm_i2s_new(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_card *card = rtd->card->snd_card;
 	size_t size = bf5xx_pcm_hardware.buffer_bytes_max;
+	int ret;
 
 	pr_debug("%s enter\n", __func__);
-	if (!card->dev->dma_mask)
-		card->dev->dma_mask = &bf5xx_pcm_dmamask;
-	if (!card->dev->coherent_dma_mask)
-		card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
 	return snd_pcm_lib_preallocate_pages_for_all(rtd->pcm,
 				SNDRV_DMA_TYPE_DEV, card->dev, size, size);
diff --git a/sound/soc/davinci/davinci-pcm.c b/sound/soc/davinci/davinci-pcm.c
index 8460edce1c3b..84a63c660ab9 100644
--- a/sound/soc/davinci/davinci-pcm.c
+++ b/sound/soc/davinci/davinci-pcm.c
@@ -844,18 +844,15 @@ static void davinci_pcm_free(struct snd_pcm *pcm)
 	}
 }
 
-static u64 davinci_pcm_dmamask = DMA_BIT_MASK(32);
-
 static int davinci_pcm_new(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_card *card = rtd->card->snd_card;
 	struct snd_pcm *pcm = rtd->pcm;
 	int ret;
 
-	if (!card->dev->dma_mask)
-		card->dev->dma_mask = &davinci_pcm_dmamask;
-	if (!card->dev->coherent_dma_mask)
-		card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
 	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
 		ret = davinci_pcm_preallocate_dma_buffer(pcm,
diff --git a/sound/soc/fsl/fsl_dma.c b/sound/soc/fsl/fsl_dma.c
index 9cc5c1f82f09..f73c7eff8b23 100644
--- a/sound/soc/fsl/fsl_dma.c
+++ b/sound/soc/fsl/fsl_dma.c
@@ -298,14 +298,11 @@ static int fsl_dma_new(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_card *card = rtd->card->snd_card;
 	struct snd_pcm *pcm = rtd->pcm;
-	static u64 fsl_dma_dmamask = DMA_BIT_MASK(36);
 	int ret;
 
-	if (!card->dev->dma_mask)
-		card->dev->dma_mask = &fsl_dma_dmamask;
-
-	if (!card->dev->coherent_dma_mask)
-		card->dev->coherent_dma_mask = fsl_dma_dmamask;
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(36));
+	if (ret)
+		return ret;
 
 	/* Some codecs have separate DAIs for playback and capture, so we
 	 * should allocate a DMA buffer only for the streams that are valid.
diff --git a/sound/soc/fsl/imx-pcm-fiq.c b/sound/soc/fsl/imx-pcm-fiq.c
index 34043c55f2a6..fd5f2fb955f1 100644
--- a/sound/soc/fsl/imx-pcm-fiq.c
+++ b/sound/soc/fsl/imx-pcm-fiq.c
@@ -272,18 +272,16 @@ static int imx_pcm_preallocate_dma_buffer(struct snd_pcm *pcm, int stream)
 	return 0;
 }
 
-static u64 imx_pcm_dmamask = DMA_BIT_MASK(32);
-
 static int imx_pcm_new(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_card *card = rtd->card->snd_card;
 	struct snd_pcm *pcm = rtd->pcm;
-	int ret = 0;
+	int ret;
+
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
-	if (!card->dev->dma_mask)
-		card->dev->dma_mask = &imx_pcm_dmamask;
-	if (!card->dev->coherent_dma_mask)
-		card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
 	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
 		ret = imx_pcm_preallocate_dma_buffer(pcm,
 			SNDRV_PCM_STREAM_PLAYBACK);
diff --git a/sound/soc/fsl/mpc5200_dma.c b/sound/soc/fsl/mpc5200_dma.c
index 2a847ca494b5..8fcf22416740 100644
--- a/sound/soc/fsl/mpc5200_dma.c
+++ b/sound/soc/fsl/mpc5200_dma.c
@@ -299,7 +299,6 @@ static struct snd_pcm_ops psc_dma_ops = {
 	.hw_params	= psc_dma_hw_params,
 };
 
-static u64 psc_dma_dmamask = DMA_BIT_MASK(32);
 static int psc_dma_new(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_card *card = rtd->card->snd_card;
@@ -307,15 +306,14 @@ static int psc_dma_new(struct snd_soc_pcm_runtime *rtd)
 	struct snd_pcm *pcm = rtd->pcm;
 	struct psc_dma *psc_dma = snd_soc_dai_get_drvdata(rtd->cpu_dai);
 	size_t size = psc_dma_hardware.buffer_bytes_max;
-	int rc = 0;
+	int rc;
 
 	dev_dbg(rtd->platform->dev, "psc_dma_new(card=%p, dai=%p, pcm=%p)\n",
 		card, dai, pcm);
 
-	if (!card->dev->dma_mask)
-		card->dev->dma_mask = &psc_dma_dmamask;
-	if (!card->dev->coherent_dma_mask)
-		card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
+	rc = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (rc)
+		return rc;
 
 	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
 		rc = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, pcm->card->dev,
diff --git a/sound/soc/jz4740/jz4740-pcm.c b/sound/soc/jz4740/jz4740-pcm.c
index 710059292318..1d7ef28585e1 100644
--- a/sound/soc/jz4740/jz4740-pcm.c
+++ b/sound/soc/jz4740/jz4740-pcm.c
@@ -297,19 +297,15 @@ static void jz4740_pcm_free(struct snd_pcm *pcm)
 	}
 }
 
-static u64 jz4740_pcm_dmamask = DMA_BIT_MASK(32);
-
 static int jz4740_pcm_new(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_card *card = rtd->card->snd_card;
 	struct snd_pcm *pcm = rtd->pcm;
-	int ret = 0;
-
-	if (!card->dev->dma_mask)
-		card->dev->dma_mask = &jz4740_pcm_dmamask;
+	int ret;
 
-	if (!card->dev->coherent_dma_mask)
-		card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
 	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
 		ret = jz4740_pcm_preallocate_dma_buffer(pcm,
diff --git a/sound/soc/kirkwood/kirkwood-dma.c b/sound/soc/kirkwood/kirkwood-dma.c
index b238434f92b0..3814bb037485 100644
--- a/sound/soc/kirkwood/kirkwood-dma.c
+++ b/sound/soc/kirkwood/kirkwood-dma.c
@@ -59,8 +59,6 @@ static struct snd_pcm_hardware kirkwood_dma_snd_hw = {
 	.fifo_size		= 0,
 };
 
-static u64 kirkwood_dma_dmamask = DMA_BIT_MASK(32);
-
 static irqreturn_t kirkwood_dma_irq(int irq, void *dev_id)
 {
 	struct kirkwood_dma_data *priv = dev_id;
@@ -292,10 +290,9 @@ static int kirkwood_dma_new(struct snd_soc_pcm_runtime *rtd)
 	struct snd_pcm *pcm = rtd->pcm;
 	int ret;
 
-	if (!card->dev->dma_mask)
-		card->dev->dma_mask = &kirkwood_dma_dmamask;
-	if (!card->dev->coherent_dma_mask)
-		card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
 	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
 		ret = kirkwood_dma_preallocate_dma_buffer(pcm,
diff --git a/sound/soc/nuc900/nuc900-pcm.c b/sound/soc/nuc900/nuc900-pcm.c
index c894ff0f2580..f588ee45b4fd 100644
--- a/sound/soc/nuc900/nuc900-pcm.c
+++ b/sound/soc/nuc900/nuc900-pcm.c
@@ -314,16 +314,15 @@ static void nuc900_dma_free_dma_buffers(struct snd_pcm *pcm)
 	snd_pcm_lib_preallocate_free_for_all(pcm);
 }
 
-static u64 nuc900_pcm_dmamask = DMA_BIT_MASK(32);
 static int nuc900_dma_new(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_card *card = rtd->card->snd_card;
 	struct snd_pcm *pcm = rtd->pcm;
+	int ret;
 
-	if (!card->dev->dma_mask)
-		card->dev->dma_mask = &nuc900_pcm_dmamask;
-	if (!card->dev->coherent_dma_mask)
-		card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
 	snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV,
 		card->dev, 4 * 1024, (4 * 1024) - 1);
diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c
index a11405de86e8..b8fa9862e54c 100644
--- a/sound/soc/omap/omap-pcm.c
+++ b/sound/soc/omap/omap-pcm.c
@@ -156,8 +156,6 @@ static struct snd_pcm_ops omap_pcm_ops = {
 	.mmap		= omap_pcm_mmap,
 };
 
-static u64 omap_pcm_dmamask = DMA_BIT_MASK(64);
-
 static int omap_pcm_preallocate_dma_buffer(struct snd_pcm *pcm,
 	int stream)
 {
@@ -202,12 +200,11 @@ static int omap_pcm_new(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_card *card = rtd->card->snd_card;
 	struct snd_pcm *pcm = rtd->pcm;
-	int ret = 0;
+	int ret;
 
-	if (!card->dev->dma_mask)
-		card->dev->dma_mask = &omap_pcm_dmamask;
-	if (!card->dev->coherent_dma_mask)
-		card->dev->coherent_dma_mask = DMA_BIT_MASK(64);
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(64));
+	if (ret)
+		return ret;
 
 	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
 		ret = omap_pcm_preallocate_dma_buffer(pcm,
diff --git a/sound/soc/pxa/pxa2xx-pcm.c b/sound/soc/pxa/pxa2xx-pcm.c
index 806da27b8b67..d58b09f4f7a4 100644
--- a/sound/soc/pxa/pxa2xx-pcm.c
+++ b/sound/soc/pxa/pxa2xx-pcm.c
@@ -87,18 +87,15 @@ static struct snd_pcm_ops pxa2xx_pcm_ops = {
 	.mmap		= pxa2xx_pcm_mmap,
 };
 
-static u64 pxa2xx_pcm_dmamask = DMA_BIT_MASK(32);
-
 static int pxa2xx_soc_pcm_new(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_card *card = rtd->card->snd_card;
 	struct snd_pcm *pcm = rtd->pcm;
-	int ret = 0;
+	int ret;
 
-	if (!card->dev->dma_mask)
-		card->dev->dma_mask = &pxa2xx_pcm_dmamask;
-	if (!card->dev->coherent_dma_mask)
-		card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
 	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
 		ret = pxa2xx_pcm_preallocate_dma_buffer(pcm,
diff --git a/sound/soc/s6000/s6000-pcm.c b/sound/soc/s6000/s6000-pcm.c
index d0740a762963..283620a97fe7 100644
--- a/sound/soc/s6000/s6000-pcm.c
+++ b/sound/soc/s6000/s6000-pcm.c
@@ -444,8 +444,6 @@ static void s6000_pcm_free(struct snd_pcm *pcm)
 	snd_pcm_lib_preallocate_free_for_all(pcm);
 }
 
-static u64 s6000_pcm_dmamask = DMA_BIT_MASK(32);
-
 static int s6000_pcm_new(struct snd_soc_pcm_runtime *runtime)
 {
 	struct snd_card *card = runtime->card->snd_card;
@@ -456,10 +454,9 @@ static int s6000_pcm_new(struct snd_soc_pcm_runtime *runtime)
 	params = snd_soc_dai_get_dma_data(runtime->cpu_dai,
 			pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream);
 
-	if (!card->dev->dma_mask)
-		card->dev->dma_mask = &s6000_pcm_dmamask;
-	if (!card->dev->coherent_dma_mask)
-		card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
+	res = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (res)
+		return res;
 
 	if (params->dma_in) {
 		s6dmac_disable_chan(DMA_MASK_DMAC(params->dma_in),
diff --git a/sound/soc/samsung/dma.c b/sound/soc/samsung/dma.c
index 9338d11e9216..fe2748b494d4 100644
--- a/sound/soc/samsung/dma.c
+++ b/sound/soc/samsung/dma.c
@@ -406,20 +406,17 @@ static void dma_free_dma_buffers(struct snd_pcm *pcm)
 	}
 }
 
-static u64 dma_mask = DMA_BIT_MASK(32);
-
 static int dma_new(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_card *card = rtd->card->snd_card;
 	struct snd_pcm *pcm = rtd->pcm;
-	int ret = 0;
+	int ret;
 
 	pr_debug("Entered %s\n", __func__);
 
-	if (!card->dev->dma_mask)
-		card->dev->dma_mask = &dma_mask;
-	if (!card->dev->coherent_dma_mask)
-		card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
 	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
 		ret = preallocate_dma_buffer(pcm,
diff --git a/sound/soc/samsung/idma.c b/sound/soc/samsung/idma.c
index ce1e1e16f250..e4f318fc2f82 100644
--- a/sound/soc/samsung/idma.c
+++ b/sound/soc/samsung/idma.c
@@ -383,18 +383,15 @@ static int preallocate_idma_buffer(struct snd_pcm *pcm, int stream)
 	return 0;
 }
 
-static u64 idma_mask = DMA_BIT_MASK(32);
-
 static int idma_new(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_card *card = rtd->card->snd_card;
 	struct snd_pcm *pcm = rtd->pcm;
-	int ret = 0;
+	int ret;
 
-	if (!card->dev->dma_mask)
-		card->dev->dma_mask = &idma_mask;
-	if (!card->dev->coherent_dma_mask)
-		card->dev->coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
 	if (pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream) {
 		ret = preallocate_idma_buffer(pcm,
-- 
cgit 


From 105f4ade6fa0fc41742c83fc929e7fdc5a095233 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 27 Jun 2013 13:34:52 +0100
Subject: DMA-API: ata: pata_octeon_cf: convert to use
 dma_coerce_mask_and_coherent()

Convert this code sequence:
	pdev->dev.coherent_dma_mask = DMA_BIT_MASK(64);
	pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
to use dma_coerce_mask_and_coherent() to avoid bypassing the architecture
check on the DMA mask.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/ata/pata_octeon_cf.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/ata/pata_octeon_cf.c b/drivers/ata/pata_octeon_cf.c
index c51bbb9ea8e8..83c4ddb1bc7f 100644
--- a/drivers/ata/pata_octeon_cf.c
+++ b/drivers/ata/pata_octeon_cf.c
@@ -1014,8 +1014,9 @@ static int octeon_cf_probe(struct platform_device *pdev)
 	}
 	cf_port->c0 = ap->ioaddr.ctl_addr;
 
-	pdev->dev.coherent_dma_mask = DMA_BIT_MASK(64);
-	pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+	rv = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	if (rv)
+		return rv;
 
 	ata_port_desc(ap, "cmd %p ctl %p", base, ap->ioaddr.ctl_addr);
 
-- 
cgit 


From 24353b8bb4ecfc7f751019ee599c89d5175e12a1 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 27 Jun 2013 13:37:21 +0100
Subject: DMA-API: dma: dw_dmac.c: convert to use
 dma_coerce_mask_and_coherent()

This code sequence:
	if (!pdev->dev.dma_mask) {
		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
	}
bypasses the architectures check on the DMA mask.  It can be replaced
with dma_coerce_mask_and_coherent(), avoiding the direct initialization
of this mask.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/dma/dw/platform.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/dma/dw/platform.c b/drivers/dma/dw/platform.c
index e35d97590311..453822cc4f9d 100644
--- a/drivers/dma/dw/platform.c
+++ b/drivers/dma/dw/platform.c
@@ -191,11 +191,9 @@ static int dw_probe(struct platform_device *pdev)
 	if (IS_ERR(chip->regs))
 		return PTR_ERR(chip->regs);
 
-	/* Apply default dma_mask if needed */
-	if (!dev->dma_mask) {
-		dev->dma_mask = &dev->coherent_dma_mask;
-		dev->coherent_dma_mask = DMA_BIT_MASK(32);
-	}
+	err = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+	if (err)
+		return err;
 
 	pdata = dev_get_platdata(dev);
 	if (!pdata)
-- 
cgit 


From 224ddca0f2f44986214ee8f9e6e0280bf2016655 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 27 Jun 2013 14:09:01 +0100
Subject: DMA-API: media: omap3isp: use dma_coerce_mask_and_coherent()

The code sequence:
	isp->raw_dmamask = DMA_BIT_MASK(32);
	isp->dev->dma_mask = &isp->raw_dmamask;
	isp->dev->coherent_dma_mask = DMA_BIT_MASK(32);
bypasses the architectures check on the DMA mask.  It can be replaced
with dma_coerce_mask_and_coherent(), avoiding the direct initialization
of this mask.

Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/media/platform/omap3isp/isp.c | 6 +++---
 drivers/media/platform/omap3isp/isp.h | 3 ---
 2 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/media/platform/omap3isp/isp.c b/drivers/media/platform/omap3isp/isp.c
index df3a0ec7fd2c..1c3608039663 100644
--- a/drivers/media/platform/omap3isp/isp.c
+++ b/drivers/media/platform/omap3isp/isp.c
@@ -2182,9 +2182,9 @@ static int isp_probe(struct platform_device *pdev)
 	isp->pdata = pdata;
 	isp->ref_count = 0;
 
-	isp->raw_dmamask = DMA_BIT_MASK(32);
-	isp->dev->dma_mask = &isp->raw_dmamask;
-	isp->dev->coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_coerce_mask_and_coherent(isp->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
 	platform_set_drvdata(pdev, isp);
 
diff --git a/drivers/media/platform/omap3isp/isp.h b/drivers/media/platform/omap3isp/isp.h
index cd3eff45ae7d..ce65d3ae1aa7 100644
--- a/drivers/media/platform/omap3isp/isp.h
+++ b/drivers/media/platform/omap3isp/isp.h
@@ -152,7 +152,6 @@ struct isp_xclk {
  * @mmio_base_phys: Array with physical L4 bus addresses for ISP register
  *                  regions.
  * @mmio_size: Array with ISP register regions size in bytes.
- * @raw_dmamask: Raw DMA mask
  * @stat_lock: Spinlock for handling statistics
  * @isp_mutex: Mutex for serializing requests to ISP.
  * @crashed: Bitmask of crashed entities (indexed by entity ID)
@@ -190,8 +189,6 @@ struct isp_device {
 	unsigned long mmio_base_phys[OMAP3_ISP_IOMEM_LAST];
 	resource_size_t mmio_size[OMAP3_ISP_IOMEM_LAST];
 
-	u64 raw_dmamask;
-
 	/* ISP Obj */
 	spinlock_t stat_lock;	/* common lock for statistic drivers */
 	struct mutex isp_mutex;	/* For handling ref_count field */
-- 
cgit 


From 07f4450c9961b2980dd6485875a374923f0ccb63 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 27 Jun 2013 14:06:28 +0100
Subject: DMA-API: mmc: sdhci-acpi: use dma_coerce_mask_and_coherent()

The code sequence:
	dev->dma_mask = &dev->coherent_dma_mask;
	dev->coherent_dma_mask = dma_mask;
bypasses the architectures check on the DMA mask.  It can be replaced
with dma_coerce_mask_and_coherent(), avoiding the direct initialization
of this mask.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/mmc/host/sdhci-acpi.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index cdd4ce0d7c90..ef19874fcd1f 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -310,8 +310,9 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
 			dma_mask = DMA_BIT_MASK(32);
 		}
 
-		dev->dma_mask = &dev->coherent_dma_mask;
-		dev->coherent_dma_mask = dma_mask;
+		err = dma_coerce_mask_and_coherent(dev, dma_mask);
+		if (err)
+			goto err_free;
 	}
 
 	if (c->slot) {
-- 
cgit 


From b469357f4ba28bd8d659106143fb1f6b3c64d5df Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 27 Jun 2013 14:03:13 +0100
Subject: DMA-API: net: nxp/lpc_eth: use dma_coerce_mask_and_coherent()

The code sequence:
	pldat->pdev->dev.coherent_dma_mask = 0xFFFFFFFF;
	pldat->pdev->dev.dma_mask = &pldat->pdev->dev.coherent_dma_mask;
bypasses the architectures check on the DMA mask.  It can be replaced
with dma_coerce_mask_and_coherent(), avoiding the direct initialization
of this mask.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/net/ethernet/nxp/lpc_eth.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/nxp/lpc_eth.c b/drivers/net/ethernet/nxp/lpc_eth.c
index a061b93efe66..ba3ca18611f7 100644
--- a/drivers/net/ethernet/nxp/lpc_eth.c
+++ b/drivers/net/ethernet/nxp/lpc_eth.c
@@ -1399,8 +1399,10 @@ static int lpc_eth_drv_probe(struct platform_device *pdev)
 	}
 
 	if (pldat->dma_buff_base_v == 0) {
-		pldat->pdev->dev.coherent_dma_mask = 0xFFFFFFFF;
-		pldat->pdev->dev.dma_mask = &pldat->pdev->dev.coherent_dma_mask;
+		ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+		if (ret)
+			goto err_out_free_irq;
+
 		pldat->dma_buff_size = PAGE_ALIGN(pldat->dma_buff_size);
 
 		/* Allocate a chunk of memory for the DMA ethernet buffers
-- 
cgit 


From 26741a69d1a5e99c4acfea1f5b1d1e652516d4ca Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 27 Jun 2013 13:57:32 +0100
Subject: DMA-API: net: octeon: use dma_coerce_mask_and_coherent()

The code sequence:
	pdev->dev.coherent_dma_mask = DMA_BIT_MASK(64);
	pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
bypasses the architectures check on the DMA mask.  It can be replaced
with dma_coerce_mask_and_coherent(), avoiding the direct initialization
of this mask.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/net/ethernet/octeon/octeon_mgmt.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/octeon/octeon_mgmt.c b/drivers/net/ethernet/octeon/octeon_mgmt.c
index 622aa75904c4..2006a0700482 100644
--- a/drivers/net/ethernet/octeon/octeon_mgmt.c
+++ b/drivers/net/ethernet/octeon/octeon_mgmt.c
@@ -1552,8 +1552,9 @@ static int octeon_mgmt_probe(struct platform_device *pdev)
 
 	p->phy_np = of_parse_phandle(pdev->dev.of_node, "phy-handle", 0);
 
-	pdev->dev.coherent_dma_mask = DMA_BIT_MASK(64);
-	pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+	result = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	if (result)
+		goto err;
 
 	netif_carrier_off(netdev);
 	result = register_netdev(netdev);
-- 
cgit 


From 93b11b2584ab6832cb279db731daa58442baac65 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 27 Jun 2013 13:49:14 +0100
Subject: DMA-API: parport: parport_pc.c: use dma_coerce_mask_and_coherent()

The code sequence:
	dev->coherent_dma_mask = DMA_BIT_MASK(24);
	dev->dma_mask = &dev->coherent_dma_mask;
bypasses the architectures check on the DMA mask.  It can be replaced
with dma_coerce_mask_and_coherent(), avoiding the direct initialization
of this mask.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/parport/parport_pc.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/parport/parport_pc.c b/drivers/parport/parport_pc.c
index 903e1285fda0..963761526229 100644
--- a/drivers/parport/parport_pc.c
+++ b/drivers/parport/parport_pc.c
@@ -2004,6 +2004,7 @@ struct parport *parport_pc_probe_port(unsigned long int base,
 	struct resource	*ECR_res = NULL;
 	struct resource	*EPP_res = NULL;
 	struct platform_device *pdev = NULL;
+	int ret;
 
 	if (!dev) {
 		/* We need a physical device to attach to, but none was
@@ -2014,8 +2015,11 @@ struct parport *parport_pc_probe_port(unsigned long int base,
 			return NULL;
 		dev = &pdev->dev;
 
-		dev->coherent_dma_mask = DMA_BIT_MASK(24);
-		dev->dma_mask = &dev->coherent_dma_mask;
+		ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(24));
+		if (ret) {
+			dev_err(dev, "Unable to set coherent dma mask: disabling DMA\n");
+			dma = PARPORT_DMA_NONE;
+		}
 	}
 
 	ops = kmalloc(sizeof(struct parport_operations), GFP_KERNEL);
-- 
cgit 


From 22d9d8e8316d7f69046c8805ce9aa8d9c43d4e5b Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Mon, 10 Jun 2013 16:28:49 +0100
Subject: DMA-API: usb: use dma_set_coherent_mask()

The correct way for a driver to specify the coherent DMA mask is
not to directly access the field in the struct device, but to use
dma_set_coherent_mask().  Only arch and bus code should access this
member directly.

Convert all direct write accesses to using the correct API.

Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/usb/chipidea/ci_hdrc_imx.c | 5 +++--
 drivers/usb/dwc3/dwc3-exynos.c     | 5 +++--
 drivers/usb/gadget/lpc32xx_udc.c   | 4 +++-
 drivers/usb/host/ehci-atmel.c      | 5 +++--
 drivers/usb/host/ehci-octeon.c     | 4 +++-
 drivers/usb/host/ehci-omap.c       | 8 +++++---
 drivers/usb/host/ehci-orion.c      | 5 +++--
 drivers/usb/host/ehci-platform.c   | 7 ++++---
 drivers/usb/host/ehci-s5p.c        | 5 +++--
 drivers/usb/host/ehci-spear.c      | 5 +++--
 drivers/usb/host/ehci-tegra.c      | 5 +++--
 drivers/usb/host/ohci-at91.c       | 7 ++++---
 drivers/usb/host/ohci-exynos.c     | 5 +++--
 drivers/usb/host/ohci-nxp.c        | 4 +++-
 drivers/usb/host/ohci-octeon.c     | 4 +++-
 drivers/usb/host/ohci-omap3.c      | 8 +++++---
 drivers/usb/host/ohci-pxa27x.c     | 6 ++++--
 drivers/usb/host/ohci-spear.c      | 5 +++--
 drivers/usb/host/uhci-platform.c   | 5 +++--
 19 files changed, 64 insertions(+), 38 deletions(-)

diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index 74d998d9b45b..bf33bd3e27b1 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -123,8 +123,9 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
 
 	if (!pdev->dev.dma_mask)
 		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	if (!pdev->dev.coherent_dma_mask)
-		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (ret)
+		goto err_clk;
 
 	if (data->usbmisc_data) {
 		ret = imx_usbmisc_init(data->usbmisc_data);
diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
index 2f2e88a3a11a..c10b3248e047 100644
--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -121,8 +121,9 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
 	 */
 	if (!dev->dma_mask)
 		dev->dma_mask = &dev->coherent_dma_mask;
-	if (!dev->coherent_dma_mask)
-		dev->coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
+	if (ret)
+		goto err1;
 
 	platform_set_drvdata(pdev, exynos);
 
diff --git a/drivers/usb/gadget/lpc32xx_udc.c b/drivers/usb/gadget/lpc32xx_udc.c
index 67128be1e1b7..6a2a65aa0057 100644
--- a/drivers/usb/gadget/lpc32xx_udc.c
+++ b/drivers/usb/gadget/lpc32xx_udc.c
@@ -3078,7 +3078,9 @@ static int __init lpc32xx_udc_probe(struct platform_device *pdev)
 		 udc->isp1301_i2c_client->addr);
 
 	pdev->dev.dma_mask = &lpc32xx_usbd_dmamask;
-	pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	retval = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (retval)
+		goto resource_fail;
 
 	udc->board = &lpc32xx_usbddata;
 
diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
index 3b645ff46f7b..5831a88623e4 100644
--- a/drivers/usb/host/ehci-atmel.c
+++ b/drivers/usb/host/ehci-atmel.c
@@ -92,8 +92,9 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev)
 	 */
 	if (!pdev->dev.dma_mask)
 		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	if (!pdev->dev.coherent_dma_mask)
-		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	retval = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (retval)
+		goto fail_create_hcd;
 
 	hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
 	if (!hcd) {
diff --git a/drivers/usb/host/ehci-octeon.c b/drivers/usb/host/ehci-octeon.c
index ab0397e4d8f3..4c528b2c033a 100644
--- a/drivers/usb/host/ehci-octeon.c
+++ b/drivers/usb/host/ehci-octeon.c
@@ -116,8 +116,10 @@ static int ehci_octeon_drv_probe(struct platform_device *pdev)
 	 * We can DMA from anywhere. But the descriptors must be in
 	 * the lower 4GB.
 	 */
-	pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 	pdev->dev.dma_mask = &ehci_octeon_dma_mask;
+	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
 	hcd = usb_create_hcd(&ehci_octeon_hc_driver, &pdev->dev, "octeon");
 	if (!hcd)
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
index 78b01fa475bb..d0759c5c03ab 100644
--- a/drivers/usb/host/ehci-omap.c
+++ b/drivers/usb/host/ehci-omap.c
@@ -104,7 +104,7 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
 	struct resource	*res;
 	struct usb_hcd	*hcd;
 	void __iomem *regs;
-	int ret = -ENODEV;
+	int ret;
 	int irq;
 	int i;
 	struct omap_hcd	*omap;
@@ -146,9 +146,11 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
 	 */
 	if (!dev->dma_mask)
 		dev->dma_mask = &dev->coherent_dma_mask;
-	if (!dev->coherent_dma_mask)
-		dev->coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
+	ret = -ENODEV;
 	hcd = usb_create_hcd(&ehci_omap_hc_driver, dev,
 			dev_name(dev));
 	if (!hcd) {
diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c
index d1dfb9db5b42..58702066a8b7 100644
--- a/drivers/usb/host/ehci-orion.c
+++ b/drivers/usb/host/ehci-orion.c
@@ -182,8 +182,9 @@ static int ehci_orion_drv_probe(struct platform_device *pdev)
 	 */
 	if (!pdev->dev.dma_mask)
 		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	if (!pdev->dev.coherent_dma_mask)
-		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (err)
+		goto err1;
 
 	if (!request_mem_region(res->start, resource_size(res),
 				ehci_orion_hc_driver.description)) {
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
index f6b790ca8cf2..5b0cd2d5f9a6 100644
--- a/drivers/usb/host/ehci-platform.c
+++ b/drivers/usb/host/ehci-platform.c
@@ -78,7 +78,7 @@ static int ehci_platform_probe(struct platform_device *dev)
 	struct resource *res_mem;
 	struct usb_ehci_pdata *pdata;
 	int irq;
-	int err = -ENOMEM;
+	int err;
 
 	if (usb_disabled())
 		return -ENODEV;
@@ -91,8 +91,9 @@ static int ehci_platform_probe(struct platform_device *dev)
 		dev->dev.platform_data = &ehci_platform_defaults;
 	if (!dev->dev.dma_mask)
 		dev->dev.dma_mask = &dev->dev.coherent_dma_mask;
-	if (!dev->dev.coherent_dma_mask)
-		dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	err = dma_set_coherent_mask(&dev->dev, DMA_BIT_MASK(32));
+	if (err)
+		return err;
 
 	pdata = dev_get_platdata(&dev->dev);
 
diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c
index 7c3de95c7054..10d6a2e307e1 100644
--- a/drivers/usb/host/ehci-s5p.c
+++ b/drivers/usb/host/ehci-s5p.c
@@ -91,8 +91,9 @@ static int s5p_ehci_probe(struct platform_device *pdev)
 	 */
 	if (!pdev->dev.dma_mask)
 		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	if (!pdev->dev.coherent_dma_mask)
-		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (err)
+		return err;
 
 	s5p_setup_vbus_gpio(pdev);
 
diff --git a/drivers/usb/host/ehci-spear.c b/drivers/usb/host/ehci-spear.c
index 1cf0adba3fc8..6839e1504db5 100644
--- a/drivers/usb/host/ehci-spear.c
+++ b/drivers/usb/host/ehci-spear.c
@@ -83,8 +83,9 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
 	 */
 	if (!pdev->dev.dma_mask)
 		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	if (!pdev->dev.coherent_dma_mask)
-		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	retval = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (retval)
+		goto fail;
 
 	usbh_clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(usbh_clk)) {
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index 78fa76da3324..3d9ee43ef2d7 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -364,8 +364,9 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 	 */
 	if (!pdev->dev.dma_mask)
 		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	if (!pdev->dev.coherent_dma_mask)
-		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (err)
+		return err;
 
 	hcd = usb_create_hcd(&tegra_ehci_hc_driver, &pdev->dev,
 					dev_name(&pdev->dev));
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index caa3764a3407..eb7a2cb26419 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -524,7 +524,7 @@ MODULE_DEVICE_TABLE(of, at91_ohci_dt_ids);
 static int ohci_at91_of_init(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
-	int i, gpio;
+	int i, gpio, ret;
 	enum of_gpio_flags flags;
 	struct at91_usbh_data	*pdata;
 	u32 ports;
@@ -538,8 +538,9 @@ static int ohci_at91_of_init(struct platform_device *pdev)
 	 */
 	if (!pdev->dev.dma_mask)
 		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	if (!pdev->dev.coherent_dma_mask)
-		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
 	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
 	if (!pdata)
diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c
index dc6ee9adacf5..ed685cbd5892 100644
--- a/drivers/usb/host/ohci-exynos.c
+++ b/drivers/usb/host/ohci-exynos.c
@@ -116,8 +116,9 @@ static int exynos_ohci_probe(struct platform_device *pdev)
 	 */
 	if (!pdev->dev.dma_mask)
 		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	if (!pdev->dev.coherent_dma_mask)
-		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (err)
+		return err;
 
 	exynos_ohci = devm_kzalloc(&pdev->dev, sizeof(struct exynos_ohci_hcd),
 					GFP_KERNEL);
diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c
index 7d7d507d54e8..5f82db409d65 100644
--- a/drivers/usb/host/ohci-nxp.c
+++ b/drivers/usb/host/ohci-nxp.c
@@ -226,8 +226,10 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
 		return -EPROBE_DEFER;
 	}
 
-	pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 	pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (ret)
+		goto fail_disable;
 
 	dev_dbg(&pdev->dev, "%s: " DRIVER_DESC " (nxp)\n", hcd_name);
 	if (usb_disabled()) {
diff --git a/drivers/usb/host/ohci-octeon.c b/drivers/usb/host/ohci-octeon.c
index 342dc7e543b8..ac1dea12a1a7 100644
--- a/drivers/usb/host/ohci-octeon.c
+++ b/drivers/usb/host/ohci-octeon.c
@@ -127,8 +127,10 @@ static int ohci_octeon_drv_probe(struct platform_device *pdev)
 	}
 
 	/* Ohci is a 32-bit device. */
-	pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 	pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
+	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
 	hcd = usb_create_hcd(&ohci_octeon_hc_driver, &pdev->dev, "octeon");
 	if (!hcd)
diff --git a/drivers/usb/host/ohci-omap3.c b/drivers/usb/host/ohci-omap3.c
index a09af26f69ed..664f5dc40939 100644
--- a/drivers/usb/host/ohci-omap3.c
+++ b/drivers/usb/host/ohci-omap3.c
@@ -132,7 +132,7 @@ static int ohci_hcd_omap3_probe(struct platform_device *pdev)
 	struct usb_hcd		*hcd = NULL;
 	void __iomem		*regs = NULL;
 	struct resource		*res;
-	int			ret = -ENODEV;
+	int			ret;
 	int			irq;
 
 	if (usb_disabled())
@@ -168,9 +168,11 @@ static int ohci_hcd_omap3_probe(struct platform_device *pdev)
 	 */
 	if (!dev->dma_mask)
 		dev->dma_mask = &dev->coherent_dma_mask;
-	if (!dev->coherent_dma_mask)
-		dev->coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
+	if (ret)
+		goto err_io;
 
+	ret = -ENODEV;
 	hcd = usb_create_hcd(&ohci_omap3_hc_driver, dev,
 			dev_name(dev));
 	if (!hcd) {
diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index 93371a235e82..74696ae29aa6 100644
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -287,6 +287,7 @@ static int ohci_pxa_of_init(struct platform_device *pdev)
 	struct device_node *np = pdev->dev.of_node;
 	struct pxaohci_platform_data *pdata;
 	u32 tmp;
+	int ret;
 
 	if (!np)
 		return 0;
@@ -297,8 +298,9 @@ static int ohci_pxa_of_init(struct platform_device *pdev)
 	 */
 	if (!pdev->dev.dma_mask)
 		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	if (!pdev->dev.coherent_dma_mask)
-		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
 	pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL);
 	if (!pdata)
diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c
index cc9dd9e4f05e..195a0a121107 100644
--- a/drivers/usb/host/ohci-spear.c
+++ b/drivers/usb/host/ohci-spear.c
@@ -113,8 +113,9 @@ static int spear_ohci_hcd_drv_probe(struct platform_device *pdev)
 	 */
 	if (!pdev->dev.dma_mask)
 		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	if (!pdev->dev.coherent_dma_mask)
-		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	retval = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (retval)
+		goto fail;
 
 	usbh_clk = devm_clk_get(&pdev->dev, NULL);
 	if (IS_ERR(usbh_clk)) {
diff --git a/drivers/usb/host/uhci-platform.c b/drivers/usb/host/uhci-platform.c
index d033a0ec7f0d..048912d4819c 100644
--- a/drivers/usb/host/uhci-platform.c
+++ b/drivers/usb/host/uhci-platform.c
@@ -77,8 +77,9 @@ static int uhci_hcd_platform_probe(struct platform_device *pdev)
 	 */
 	if (!pdev->dev.dma_mask)
 		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	if (!pdev->dev.coherent_dma_mask)
-		pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
 	hcd = usb_create_hcd(&uhci_platform_hc_driver, &pdev->dev,
 			pdev->name);
-- 
cgit 


From e1fd7341837238c6c5380c5073887d238f706cf0 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 27 Jun 2013 12:36:37 +0100
Subject: DMA-API: usb: use new dma_coerce_mask_and_coherent()

Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/usb/chipidea/ci_hdrc_imx.c | 4 +---
 drivers/usb/dwc3/dwc3-exynos.c     | 4 +---
 drivers/usb/host/ehci-atmel.c      | 4 +---
 drivers/usb/host/ehci-omap.c       | 4 +---
 drivers/usb/host/ehci-orion.c      | 4 +---
 drivers/usb/host/ehci-platform.c   | 5 ++---
 drivers/usb/host/ehci-s5p.c        | 4 +---
 drivers/usb/host/ehci-spear.c      | 4 +---
 drivers/usb/host/ehci-tegra.c      | 4 +---
 drivers/usb/host/ohci-at91.c       | 4 +---
 drivers/usb/host/ohci-exynos.c     | 4 +---
 drivers/usb/host/ohci-nxp.c        | 3 +--
 drivers/usb/host/ohci-octeon.c     | 3 +--
 drivers/usb/host/ohci-omap3.c      | 4 +---
 drivers/usb/host/ohci-pxa27x.c     | 4 +---
 drivers/usb/host/ohci-spear.c      | 4 +---
 drivers/usb/host/uhci-platform.c   | 4 +---
 17 files changed, 18 insertions(+), 49 deletions(-)

diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index bf33bd3e27b1..af731dbda1e6 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -121,9 +121,7 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
 
 	pdata.phy = data->phy;
 
-	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 	if (ret)
 		goto err_clk;
 
diff --git a/drivers/usb/dwc3/dwc3-exynos.c b/drivers/usb/dwc3/dwc3-exynos.c
index c10b3248e047..8b20c70d91e7 100644
--- a/drivers/usb/dwc3/dwc3-exynos.c
+++ b/drivers/usb/dwc3/dwc3-exynos.c
@@ -119,9 +119,7 @@ static int dwc3_exynos_probe(struct platform_device *pdev)
 	 * Since shared usb code relies on it, set it here for now.
 	 * Once we move to full device tree support this will vanish off.
 	 */
-	if (!dev->dma_mask)
-		dev->dma_mask = &dev->coherent_dma_mask;
-	ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
+	ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32));
 	if (ret)
 		goto err1;
 
diff --git a/drivers/usb/host/ehci-atmel.c b/drivers/usb/host/ehci-atmel.c
index 5831a88623e4..8e7323e07f79 100644
--- a/drivers/usb/host/ehci-atmel.c
+++ b/drivers/usb/host/ehci-atmel.c
@@ -90,9 +90,7 @@ static int ehci_atmel_drv_probe(struct platform_device *pdev)
 	 * Since shared usb code relies on it, set it here for now.
 	 * Once we have dma capability bindings this can go away.
 	 */
-	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	retval = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	retval = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 	if (retval)
 		goto fail_create_hcd;
 
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
index d0759c5c03ab..6fa82d6b7661 100644
--- a/drivers/usb/host/ehci-omap.c
+++ b/drivers/usb/host/ehci-omap.c
@@ -144,9 +144,7 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
 	 * Since shared usb code relies on it, set it here for now.
 	 * Once we have dma capability bindings this can go away.
 	 */
-	if (!dev->dma_mask)
-		dev->dma_mask = &dev->coherent_dma_mask;
-	ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
+	ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32));
 	if (ret)
 		return ret;
 
diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c
index 58702066a8b7..2ba76730e650 100644
--- a/drivers/usb/host/ehci-orion.c
+++ b/drivers/usb/host/ehci-orion.c
@@ -180,9 +180,7 @@ static int ehci_orion_drv_probe(struct platform_device *pdev)
 	 * set. Since shared usb code relies on it, set it here for
 	 * now. Once we have dma capability bindings this can go away.
 	 */
-	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	err = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 	if (err)
 		goto err1;
 
diff --git a/drivers/usb/host/ehci-platform.c b/drivers/usb/host/ehci-platform.c
index 5b0cd2d5f9a6..7f30b7168d5a 100644
--- a/drivers/usb/host/ehci-platform.c
+++ b/drivers/usb/host/ehci-platform.c
@@ -89,9 +89,8 @@ static int ehci_platform_probe(struct platform_device *dev)
 	 */
 	if (!dev_get_platdata(&dev->dev))
 		dev->dev.platform_data = &ehci_platform_defaults;
-	if (!dev->dev.dma_mask)
-		dev->dev.dma_mask = &dev->dev.coherent_dma_mask;
-	err = dma_set_coherent_mask(&dev->dev, DMA_BIT_MASK(32));
+
+	err = dma_coerce_mask_and_coherent(&dev->dev, DMA_BIT_MASK(32));
 	if (err)
 		return err;
 
diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c
index 10d6a2e307e1..d919ed47bd47 100644
--- a/drivers/usb/host/ehci-s5p.c
+++ b/drivers/usb/host/ehci-s5p.c
@@ -89,9 +89,7 @@ static int s5p_ehci_probe(struct platform_device *pdev)
 	 * Since shared usb code relies on it, set it here for now.
 	 * Once we move to full device tree support this will vanish off.
 	 */
-	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	err = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 	if (err)
 		return err;
 
diff --git a/drivers/usb/host/ehci-spear.c b/drivers/usb/host/ehci-spear.c
index 6839e1504db5..ee6f9ffaa0e7 100644
--- a/drivers/usb/host/ehci-spear.c
+++ b/drivers/usb/host/ehci-spear.c
@@ -81,9 +81,7 @@ static int spear_ehci_hcd_drv_probe(struct platform_device *pdev)
 	 * Since shared usb code relies on it, set it here for now.
 	 * Once we have dma capability bindings this can go away.
 	 */
-	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	retval = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	retval = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 	if (retval)
 		goto fail;
 
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index 3d9ee43ef2d7..e74aaf3f0164 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -362,9 +362,7 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 	 * Since shared usb code relies on it, set it here for now.
 	 * Once we have dma capability bindings this can go away.
 	 */
-	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	err = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 	if (err)
 		return err;
 
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index eb7a2cb26419..36423db63073 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -536,9 +536,7 @@ static int ohci_at91_of_init(struct platform_device *pdev)
 	 * Since shared usb code relies on it, set it here for now.
 	 * Once we have dma capability bindings this can go away.
 	 */
-	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 	if (ret)
 		return ret;
 
diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c
index ed685cbd5892..866f2464f9de 100644
--- a/drivers/usb/host/ohci-exynos.c
+++ b/drivers/usb/host/ohci-exynos.c
@@ -114,9 +114,7 @@ static int exynos_ohci_probe(struct platform_device *pdev)
 	 * Since shared usb code relies on it, set it here for now.
 	 * Once we move to full device tree support this will vanish off.
 	 */
-	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	err = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	err = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 	if (err)
 		return err;
 
diff --git a/drivers/usb/host/ohci-nxp.c b/drivers/usb/host/ohci-nxp.c
index 5f82db409d65..df3eb3e0324e 100644
--- a/drivers/usb/host/ohci-nxp.c
+++ b/drivers/usb/host/ohci-nxp.c
@@ -226,8 +226,7 @@ static int usb_hcd_nxp_probe(struct platform_device *pdev)
 		return -EPROBE_DEFER;
 	}
 
-	pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 	if (ret)
 		goto fail_disable;
 
diff --git a/drivers/usb/host/ohci-octeon.c b/drivers/usb/host/ohci-octeon.c
index ac1dea12a1a7..6c16dcef15c6 100644
--- a/drivers/usb/host/ohci-octeon.c
+++ b/drivers/usb/host/ohci-octeon.c
@@ -127,8 +127,7 @@ static int ohci_octeon_drv_probe(struct platform_device *pdev)
 	}
 
 	/* Ohci is a 32-bit device. */
-	pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 	if (ret)
 		return ret;
 
diff --git a/drivers/usb/host/ohci-omap3.c b/drivers/usb/host/ohci-omap3.c
index 664f5dc40939..db9bd6bc97b9 100644
--- a/drivers/usb/host/ohci-omap3.c
+++ b/drivers/usb/host/ohci-omap3.c
@@ -166,9 +166,7 @@ static int ohci_hcd_omap3_probe(struct platform_device *pdev)
 	 * Since shared usb code relies on it, set it here for now.
 	 * Once we have dma capability bindings this can go away.
 	 */
-	if (!dev->dma_mask)
-		dev->dma_mask = &dev->coherent_dma_mask;
-	ret = dma_set_coherent_mask(dev, DMA_BIT_MASK(32));
+	ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(32));
 	if (ret)
 		goto err_io;
 
diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index 74696ae29aa6..b64949bc43e2 100644
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -296,9 +296,7 @@ static int ohci_pxa_of_init(struct platform_device *pdev)
 	 * Since shared usb code relies on it, set it here for now.
 	 * Once we have dma capability bindings this can go away.
 	 */
-	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 	if (ret)
 		return ret;
 
diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c
index 195a0a121107..075bb5e9b43f 100644
--- a/drivers/usb/host/ohci-spear.c
+++ b/drivers/usb/host/ohci-spear.c
@@ -111,9 +111,7 @@ static int spear_ohci_hcd_drv_probe(struct platform_device *pdev)
 	 * Since shared usb code relies on it, set it here for now.
 	 * Once we have dma capability bindings this can go away.
 	 */
-	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	retval = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	retval = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 	if (retval)
 		goto fail;
 
diff --git a/drivers/usb/host/uhci-platform.c b/drivers/usb/host/uhci-platform.c
index 048912d4819c..f8548b72f708 100644
--- a/drivers/usb/host/uhci-platform.c
+++ b/drivers/usb/host/uhci-platform.c
@@ -75,9 +75,7 @@ static int uhci_hcd_platform_probe(struct platform_device *pdev)
 	 * Since shared usb code relies on it, set it here for now.
 	 * Once we have dma capability bindings this can go away.
 	 */
-	if (!pdev->dev.dma_mask)
-		pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
-	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
 	if (ret)
 		return ret;
 
-- 
cgit 


From 4cdbb4ff7fe456c43e9d6c6397e37380ff292520 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Mon, 10 Jun 2013 16:56:16 +0100
Subject: DMA-API: staging: use dma_set_coherent_mask()

The correct way for a driver to specify the coherent DMA mask is
not to directly access the field in the struct device, but to use
dma_set_coherent_mask().  Only arch and bus code should access this
member directly.

Convert all direct write accesses to using the correct API.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/staging/dwc2/platform.c        | 5 +++--
 drivers/staging/imx-drm/imx-drm-core.c | 8 ++++++--
 drivers/staging/imx-drm/ipuv3-crtc.c   | 4 +++-
 3 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/dwc2/platform.c b/drivers/staging/dwc2/platform.c
index 44cce2fa6361..1d68c49afabe 100644
--- a/drivers/staging/dwc2/platform.c
+++ b/drivers/staging/dwc2/platform.c
@@ -100,8 +100,9 @@ static int dwc2_driver_probe(struct platform_device *dev)
 	 */
 	if (!dev->dev.dma_mask)
 		dev->dev.dma_mask = &dev->dev.coherent_dma_mask;
-	if (!dev->dev.coherent_dma_mask)
-		dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	retval = dma_set_coherent_mask(&dev->dev, DMA_BIT_MASK(32));
+	if (retval)
+		return retval;
 
 	irq = platform_get_irq(dev, 0);
 	if (irq < 0) {
diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c
index 47c5888461ff..847f430168d5 100644
--- a/drivers/staging/imx-drm/imx-drm-core.c
+++ b/drivers/staging/imx-drm/imx-drm-core.c
@@ -805,6 +805,12 @@ static struct drm_driver imx_drm_driver = {
 
 static int imx_drm_platform_probe(struct platform_device *pdev)
 {
+	int ret;
+
+	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
+
 	imx_drm_device->dev = &pdev->dev;
 
 	return drm_platform_init(&imx_drm_driver, pdev);
@@ -847,8 +853,6 @@ static int __init imx_drm_init(void)
 		goto err_pdev;
 	}
 
-	imx_drm_pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32),
-
 	ret = platform_driver_register(&imx_drm_pdrv);
 	if (ret)
 		goto err_pdrv;
diff --git a/drivers/staging/imx-drm/ipuv3-crtc.c b/drivers/staging/imx-drm/ipuv3-crtc.c
index 6fd37a7453e9..9e73e8d8c9aa 100644
--- a/drivers/staging/imx-drm/ipuv3-crtc.c
+++ b/drivers/staging/imx-drm/ipuv3-crtc.c
@@ -523,7 +523,9 @@ static int ipu_drm_probe(struct platform_device *pdev)
 	if (!pdata)
 		return -EINVAL;
 
-	pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
 	ipu_crtc = devm_kzalloc(&pdev->dev, sizeof(*ipu_crtc), GFP_KERNEL);
 	if (!ipu_crtc)
-- 
cgit 


From d6cfaaba1a93a239b01bc8d1351685773b657b64 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Mon, 10 Jun 2013 18:41:59 +0100
Subject: DMA-API: others: use dma_set_coherent_mask()

The correct way for a driver to specify the coherent DMA mask is
not to directly access the field in the struct device, but to use
dma_set_coherent_mask().  Only arch and bus code should access this
member directly.

Convert all direct write accesses to using the correct API.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/ata/pata_ixp4xx_cf.c             | 5 ++++-
 drivers/gpu/drm/exynos/exynos_drm_drv.c  | 6 +++++-
 drivers/gpu/drm/omapdrm/omap_dmm_tiler.c | 5 +++--
 3 files changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/ata/pata_ixp4xx_cf.c b/drivers/ata/pata_ixp4xx_cf.c
index 1ec53f8ca96f..ddf470c2341d 100644
--- a/drivers/ata/pata_ixp4xx_cf.c
+++ b/drivers/ata/pata_ixp4xx_cf.c
@@ -144,6 +144,7 @@ static int ixp4xx_pata_probe(struct platform_device *pdev)
 	struct ata_host *host;
 	struct ata_port *ap;
 	struct ixp4xx_pata_data *data = dev_get_platdata(&pdev->dev);
+	int ret;
 
 	cs0 = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	cs1 = platform_get_resource(pdev, IORESOURCE_MEM, 1);
@@ -157,7 +158,9 @@ static int ixp4xx_pata_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	/* acquire resources and fill host */
-	pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
 	data->cs0 = devm_ioremap(&pdev->dev, cs0->start, 0x1000);
 	data->cs1 = devm_ioremap(&pdev->dev, cs1->start, 0x1000);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index bb82ef78ca85..81192d00b39e 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -286,7 +286,11 @@ static struct drm_driver exynos_drm_driver = {
 
 static int exynos_drm_platform_probe(struct platform_device *pdev)
 {
-	pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	int ret;
+
+	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
 
 	return drm_platform_init(&exynos_drm_driver, pdev);
 }
diff --git a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
index acf667859cb6..701c4c10e08b 100644
--- a/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
+++ b/drivers/gpu/drm/omapdrm/omap_dmm_tiler.c
@@ -664,8 +664,9 @@ static int omap_dmm_probe(struct platform_device *dev)
 	}
 
 	/* set dma mask for device */
-	/* NOTE: this is a workaround for the hwmod not initializing properly */
-	dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	ret = dma_set_coherent_mask(&dev->dev, DMA_BIT_MASK(32));
+	if (ret)
+		goto fail;
 
 	omap_dmm->dummy_pa = page_to_phys(omap_dmm->dummy_page);
 
-- 
cgit 


From d8cbc3f7921d0a50c032c8ee7131f8ee10c6b5a9 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Mon, 10 Jun 2013 18:52:52 +0100
Subject: DMA-API: crypto: fix ixp4xx crypto platform device support

Don't statically allocate struct device's in modules, and shut the
warning up with an empty release() function.  There's a reason that
warning is there and that's not for people to hide in this way.  It's
there to persuade people to use the correct APIs to allocate platform
devices.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/crypto/ixp4xx_crypto.c | 37 +++++++++++++++++--------------------
 1 file changed, 17 insertions(+), 20 deletions(-)

diff --git a/drivers/crypto/ixp4xx_crypto.c b/drivers/crypto/ixp4xx_crypto.c
index 21180d6cad6e..830618579102 100644
--- a/drivers/crypto/ixp4xx_crypto.c
+++ b/drivers/crypto/ixp4xx_crypto.c
@@ -218,23 +218,10 @@ static dma_addr_t crypt_phys;
 
 static int support_aes = 1;
 
-static void dev_release(struct device *dev)
-{
-	return;
-}
-
 #define DRIVER_NAME "ixp4xx_crypto"
-static struct platform_device pseudo_dev = {
-	.name = DRIVER_NAME,
-	.id   = 0,
-	.num_resources = 0,
-	.dev  = {
-		.coherent_dma_mask = DMA_BIT_MASK(32),
-		.release = dev_release,
-	}
-};
 
-static struct device *dev = &pseudo_dev.dev;
+static struct platform_device *pdev;
+static struct device *dev;
 
 static inline dma_addr_t crypt_virt2phys(struct crypt_ctl *virt)
 {
@@ -1418,20 +1405,30 @@ static struct ixp_alg ixp4xx_algos[] = {
 } };
 
 #define IXP_POSTFIX "-ixp4xx"
+
+static const struct platform_device_info ixp_dev_info __initdata = {
+	.name		= DRIVER_NAME,
+	.id		= 0,
+	.dma_mask	= DMA_BIT_MASK(32),
+};
+
 static int __init ixp_module_init(void)
 {
 	int num = ARRAY_SIZE(ixp4xx_algos);
-	int i,err ;
+	int i, err ;
 
-	if (platform_device_register(&pseudo_dev))
-		return -ENODEV;
+	pdev = platform_device_register_full(&ixp_dev_info);
+	if (IS_ERR(pdev))
+		return PTR_ERR(pdev);
+
+	dev = &pdev->dev;
 
 	spin_lock_init(&desc_lock);
 	spin_lock_init(&emerg_lock);
 
 	err = init_ixp_crypto();
 	if (err) {
-		platform_device_unregister(&pseudo_dev);
+		platform_device_unregister(pdev);
 		return err;
 	}
 	for (i=0; i< num; i++) {
@@ -1496,7 +1493,7 @@ static void __exit ixp_module_exit(void)
 			crypto_unregister_alg(&ixp4xx_algos[i].crypto);
 	}
 	release_ixp_crypto();
-	platform_device_unregister(&pseudo_dev);
+	platform_device_unregister(pdev);
 }
 
 module_init(ixp_module_init);
-- 
cgit 


From 27c1789ca6a6eae984b73d0267b7957e5c207da1 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Mon, 10 Jun 2013 19:09:45 +0100
Subject: DMA-API: crypto: remove last references to 'static struct device
 *dev'

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/crypto/ixp4xx_crypto.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/crypto/ixp4xx_crypto.c b/drivers/crypto/ixp4xx_crypto.c
index 830618579102..214357e12dc0 100644
--- a/drivers/crypto/ixp4xx_crypto.c
+++ b/drivers/crypto/ixp4xx_crypto.c
@@ -221,7 +221,6 @@ static int support_aes = 1;
 #define DRIVER_NAME "ixp4xx_crypto"
 
 static struct platform_device *pdev;
-static struct device *dev;
 
 static inline dma_addr_t crypt_virt2phys(struct crypt_ctl *virt)
 {
@@ -250,6 +249,7 @@ static inline const struct ix_hash_algo *ix_hash(struct crypto_tfm *tfm)
 
 static int setup_crypt_desc(void)
 {
+	struct device *dev = &pdev->dev;
 	BUILD_BUG_ON(sizeof(struct crypt_ctl) != 64);
 	crypt_virt = dma_alloc_coherent(dev,
 			NPE_QLEN * sizeof(struct crypt_ctl),
@@ -350,6 +350,7 @@ static void finish_scattered_hmac(struct crypt_ctl *crypt)
 
 static void one_packet(dma_addr_t phys)
 {
+	struct device *dev = &pdev->dev;
 	struct crypt_ctl *crypt;
 	struct ixp_ctx *ctx;
 	int failed;
@@ -419,7 +420,7 @@ static void crypto_done_action(unsigned long arg)
 	tasklet_schedule(&crypto_done_tasklet);
 }
 
-static int init_ixp_crypto(void)
+static int init_ixp_crypto(struct device *dev)
 {
 	int ret = -ENODEV;
 	u32 msg[2] = { 0, 0 };
@@ -506,7 +507,7 @@ err:
 	return ret;
 }
 
-static void release_ixp_crypto(void)
+static void release_ixp_crypto(struct device *dev)
 {
 	qmgr_disable_irq(RECV_QID);
 	tasklet_kill(&crypto_done_tasklet);
@@ -873,6 +874,7 @@ static int ablk_perform(struct ablkcipher_request *req, int encrypt)
 	enum dma_data_direction src_direction = DMA_BIDIRECTIONAL;
 	struct ablk_ctx *req_ctx = ablkcipher_request_ctx(req);
 	struct buffer_desc src_hook;
+	struct device *dev = &pdev->dev;
 	gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ?
 				GFP_KERNEL : GFP_ATOMIC;
 
@@ -997,6 +999,7 @@ static int aead_perform(struct aead_request *req, int encrypt,
 	unsigned int cryptlen;
 	struct buffer_desc *buf, src_hook;
 	struct aead_ctx *req_ctx = aead_request_ctx(req);
+	struct device *dev = &pdev->dev;
 	gfp_t flags = req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP ?
 				GFP_KERNEL : GFP_ATOMIC;
 
@@ -1426,7 +1429,7 @@ static int __init ixp_module_init(void)
 	spin_lock_init(&desc_lock);
 	spin_lock_init(&emerg_lock);
 
-	err = init_ixp_crypto();
+	err = init_ixp_crypto(&pdev->dev);
 	if (err) {
 		platform_device_unregister(pdev);
 		return err;
@@ -1492,7 +1495,7 @@ static void __exit ixp_module_exit(void)
 		if (ixp4xx_algos[i].registered)
 			crypto_unregister_alg(&ixp4xx_algos[i].crypto);
 	}
-	release_ixp_crypto();
+	release_ixp_crypto(&pdev->dev);
 	platform_device_unregister(pdev);
 }
 
-- 
cgit 


From 460d47db9da17322f823e3c16123666ef4c6c838 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Mon, 10 Jun 2013 20:02:35 +0100
Subject: DMA-API: usb: musb: use platform_device_register_full() to avoid
 directly messing with dma masks

Use platform_device_register_full() for those drivers which can, to
avoid messing directly with DMA masks.  This can only be done when
the driver does not need to access the allocated musb platform device
from within its callbacks, which may be called during the musb
device probing.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/usb/musb/am35x.c    | 50 +++++++++++++++------------------------------
 drivers/usb/musb/da8xx.c    | 49 +++++++++++++++-----------------------------
 drivers/usb/musb/davinci.c  | 48 +++++++++++++++----------------------------
 drivers/usb/musb/tusb6010.c | 49 +++++++++++++++-----------------------------
 4 files changed, 68 insertions(+), 128 deletions(-)

diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c
index 5c310c664218..790b22b296b1 100644
--- a/drivers/usb/musb/am35x.c
+++ b/drivers/usb/musb/am35x.c
@@ -89,7 +89,6 @@ struct am35x_glue {
 	struct clk		*phy_clk;
 	struct clk		*clk;
 };
-#define glue_to_musb(g)		platform_get_drvdata(g->musb)
 
 /*
  * am35x_musb_enable - enable interrupts
@@ -452,14 +451,18 @@ static const struct musb_platform_ops am35x_ops = {
 	.set_vbus	= am35x_musb_set_vbus,
 };
 
-static u64 am35x_dmamask = DMA_BIT_MASK(32);
+static const struct platform_device_info am35x_dev_info = {
+	.name		= "musb-hdrc",
+	.id		= PLATFORM_DEVID_AUTO,
+	.dma_mask	= DMA_BIT_MASK(32),
+};
 
 static int am35x_probe(struct platform_device *pdev)
 {
 	struct musb_hdrc_platform_data	*pdata = dev_get_platdata(&pdev->dev);
 	struct platform_device		*musb;
 	struct am35x_glue		*glue;
-
+	struct platform_device_info	pinfo;
 	struct clk			*phy_clk;
 	struct clk			*clk;
 
@@ -471,12 +474,6 @@ static int am35x_probe(struct platform_device *pdev)
 		goto err0;
 	}
 
-	musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO);
-	if (!musb) {
-		dev_err(&pdev->dev, "failed to allocate musb device\n");
-		goto err1;
-	}
-
 	phy_clk = clk_get(&pdev->dev, "fck");
 	if (IS_ERR(phy_clk)) {
 		dev_err(&pdev->dev, "failed to get PHY clock\n");
@@ -503,12 +500,7 @@ static int am35x_probe(struct platform_device *pdev)
 		goto err6;
 	}
 
-	musb->dev.parent		= &pdev->dev;
-	musb->dev.dma_mask		= &am35x_dmamask;
-	musb->dev.coherent_dma_mask	= am35x_dmamask;
-
 	glue->dev			= &pdev->dev;
-	glue->musb			= musb;
 	glue->phy_clk			= phy_clk;
 	glue->clk			= clk;
 
@@ -516,22 +508,17 @@ static int am35x_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, glue);
 
-	ret = platform_device_add_resources(musb, pdev->resource,
-			pdev->num_resources);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to add resources\n");
-		goto err7;
-	}
-
-	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
-	if (ret) {
-		dev_err(&pdev->dev, "failed to add platform_data\n");
-		goto err7;
-	}
-
-	ret = platform_device_add(musb);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to register musb device\n");
+	pinfo = am35x_dev_info;
+	pinfo.parent = &pdev->dev;
+	pinfo.res = pdev->resource;
+	pinfo.num_res = pdev->num_resources;
+	pinfo.data = pdata;
+	pinfo.size_data = sizeof(*pdata);
+
+	glue->musb = musb = platform_device_register_full(&pinfo);
+	if (IS_ERR(musb)) {
+		ret = PTR_ERR(musb);
+		dev_err(&pdev->dev, "failed to register musb device: %d\n", ret);
 		goto err7;
 	}
 
@@ -550,9 +537,6 @@ err4:
 	clk_put(phy_clk);
 
 err3:
-	platform_device_put(musb);
-
-err1:
 	kfree(glue);
 
 err0:
diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c
index d9ddf4122f37..2f2c1cb36421 100644
--- a/drivers/usb/musb/da8xx.c
+++ b/drivers/usb/musb/da8xx.c
@@ -472,7 +472,11 @@ static const struct musb_platform_ops da8xx_ops = {
 	.set_vbus	= da8xx_musb_set_vbus,
 };
 
-static u64 da8xx_dmamask = DMA_BIT_MASK(32);
+static const struct platform_device_info da8xx_dev_info = {
+	.name		= "musb-hdrc",
+	.id		= PLATFORM_DEVID_AUTO,
+	.dma_mask	= DMA_BIT_MASK(32),
+};
 
 static int da8xx_probe(struct platform_device *pdev)
 {
@@ -480,7 +484,7 @@ static int da8xx_probe(struct platform_device *pdev)
 	struct musb_hdrc_platform_data	*pdata = dev_get_platdata(&pdev->dev);
 	struct platform_device		*musb;
 	struct da8xx_glue		*glue;
-
+	struct platform_device_info	pinfo;
 	struct clk			*clk;
 
 	int				ret = -ENOMEM;
@@ -491,12 +495,6 @@ static int da8xx_probe(struct platform_device *pdev)
 		goto err0;
 	}
 
-	musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO);
-	if (!musb) {
-		dev_err(&pdev->dev, "failed to allocate musb device\n");
-		goto err1;
-	}
-
 	clk = clk_get(&pdev->dev, "usb20");
 	if (IS_ERR(clk)) {
 		dev_err(&pdev->dev, "failed to get clock\n");
@@ -510,12 +508,7 @@ static int da8xx_probe(struct platform_device *pdev)
 		goto err4;
 	}
 
-	musb->dev.parent		= &pdev->dev;
-	musb->dev.dma_mask		= &da8xx_dmamask;
-	musb->dev.coherent_dma_mask	= da8xx_dmamask;
-
 	glue->dev			= &pdev->dev;
-	glue->musb			= musb;
 	glue->clk			= clk;
 
 	pdata->platform_ops		= &da8xx_ops;
@@ -535,22 +528,17 @@ static int da8xx_probe(struct platform_device *pdev)
 	musb_resources[1].end = pdev->resource[1].end;
 	musb_resources[1].flags = pdev->resource[1].flags;
 
-	ret = platform_device_add_resources(musb, musb_resources,
-			ARRAY_SIZE(musb_resources));
-	if (ret) {
-		dev_err(&pdev->dev, "failed to add resources\n");
-		goto err5;
-	}
-
-	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
-	if (ret) {
-		dev_err(&pdev->dev, "failed to add platform_data\n");
-		goto err5;
-	}
-
-	ret = platform_device_add(musb);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to register musb device\n");
+	pinfo = da8xx_dev_info;
+	pinfo.parent = &pdev->dev;
+	pinfo.res = musb_resources;
+	pinfo.num_res = ARRAY_SIZE(musb_resources);
+	pinfo.data = pdata;
+	pinfo.size_data = sizeof(*pdata);
+
+	glue->musb = musb = platform_device_register_full(&pinfo);
+	if (IS_ERR(musb)) {
+		ret = PTR_ERR(musb);
+		dev_err(&pdev->dev, "failed to register musb device: %d\n", ret);
 		goto err5;
 	}
 
@@ -563,9 +551,6 @@ err4:
 	clk_put(clk);
 
 err3:
-	platform_device_put(musb);
-
-err1:
 	kfree(glue);
 
 err0:
diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c
index ed0834e2b72e..45aae0bbb8df 100644
--- a/drivers/usb/musb/davinci.c
+++ b/drivers/usb/musb/davinci.c
@@ -505,7 +505,11 @@ static const struct musb_platform_ops davinci_ops = {
 	.set_vbus	= davinci_musb_set_vbus,
 };
 
-static u64 davinci_dmamask = DMA_BIT_MASK(32);
+static const struct platform_device_info davinci_dev_info = {
+	.name		= "musb-hdrc",
+	.id		= PLATFORM_DEVID_AUTO,
+	.dma_mask	= DMA_BIT_MASK(32),
+};
 
 static int davinci_probe(struct platform_device *pdev)
 {
@@ -513,6 +517,7 @@ static int davinci_probe(struct platform_device *pdev)
 	struct musb_hdrc_platform_data	*pdata = dev_get_platdata(&pdev->dev);
 	struct platform_device		*musb;
 	struct davinci_glue		*glue;
+	struct platform_device_info	pinfo;
 	struct clk			*clk;
 
 	int				ret = -ENOMEM;
@@ -523,12 +528,6 @@ static int davinci_probe(struct platform_device *pdev)
 		goto err0;
 	}
 
-	musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO);
-	if (!musb) {
-		dev_err(&pdev->dev, "failed to allocate musb device\n");
-		goto err1;
-	}
-
 	clk = clk_get(&pdev->dev, "usb");
 	if (IS_ERR(clk)) {
 		dev_err(&pdev->dev, "failed to get clock\n");
@@ -542,12 +541,7 @@ static int davinci_probe(struct platform_device *pdev)
 		goto err4;
 	}
 
-	musb->dev.parent		= &pdev->dev;
-	musb->dev.dma_mask		= &davinci_dmamask;
-	musb->dev.coherent_dma_mask	= davinci_dmamask;
-
 	glue->dev			= &pdev->dev;
-	glue->musb			= musb;
 	glue->clk			= clk;
 
 	pdata->platform_ops		= &davinci_ops;
@@ -567,22 +561,17 @@ static int davinci_probe(struct platform_device *pdev)
 	musb_resources[1].end = pdev->resource[1].end;
 	musb_resources[1].flags = pdev->resource[1].flags;
 
-	ret = platform_device_add_resources(musb, musb_resources,
-			ARRAY_SIZE(musb_resources));
-	if (ret) {
-		dev_err(&pdev->dev, "failed to add resources\n");
-		goto err5;
-	}
-
-	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
-	if (ret) {
-		dev_err(&pdev->dev, "failed to add platform_data\n");
-		goto err5;
-	}
-
-	ret = platform_device_add(musb);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to register musb device\n");
+	pinfo = davinci_dev_info;
+	pinfo.parent = &pdev->dev;
+	pinfo.res = musb_resources;
+	pinfo.num_res = ARRAY_SIZE(musb_resources);
+	pinfo.data = pdata;
+	pinfo.size_data = sizeof(*pdata);
+
+	glue->musb = musb = platform_device_register_full(&pinfo);
+	if (IS_ERR(musb)) {
+		ret = PTR_ERR(musb);
+		dev_err(&pdev->dev, "failed to register musb device: %d\n", ret);
 		goto err5;
 	}
 
@@ -595,9 +584,6 @@ err4:
 	clk_put(clk);
 
 err3:
-	platform_device_put(musb);
-
-err1:
 	kfree(glue);
 
 err0:
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index b3b3ed723882..4432314d70ee 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -1152,7 +1152,11 @@ static const struct musb_platform_ops tusb_ops = {
 	.set_vbus	= tusb_musb_set_vbus,
 };
 
-static u64 tusb_dmamask = DMA_BIT_MASK(32);
+static const struct platform_device_info tusb_dev_info = {
+	.name		= "musb-hdrc",
+	.id		= PLATFORM_DEVID_AUTO,
+	.dma_mask	= DMA_BIT_MASK(32),
+};
 
 static int tusb_probe(struct platform_device *pdev)
 {
@@ -1160,7 +1164,7 @@ static int tusb_probe(struct platform_device *pdev)
 	struct musb_hdrc_platform_data	*pdata = dev_get_platdata(&pdev->dev);
 	struct platform_device		*musb;
 	struct tusb6010_glue		*glue;
-
+	struct platform_device_info	pinfo;
 	int				ret = -ENOMEM;
 
 	glue = kzalloc(sizeof(*glue), GFP_KERNEL);
@@ -1169,18 +1173,7 @@ static int tusb_probe(struct platform_device *pdev)
 		goto err0;
 	}
 
-	musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO);
-	if (!musb) {
-		dev_err(&pdev->dev, "failed to allocate musb device\n");
-		goto err1;
-	}
-
-	musb->dev.parent		= &pdev->dev;
-	musb->dev.dma_mask		= &tusb_dmamask;
-	musb->dev.coherent_dma_mask	= tusb_dmamask;
-
 	glue->dev			= &pdev->dev;
-	glue->musb			= musb;
 
 	pdata->platform_ops		= &tusb_ops;
 
@@ -1204,31 +1197,23 @@ static int tusb_probe(struct platform_device *pdev)
 	musb_resources[2].end = pdev->resource[2].end;
 	musb_resources[2].flags = pdev->resource[2].flags;
 
-	ret = platform_device_add_resources(musb, musb_resources,
-			ARRAY_SIZE(musb_resources));
-	if (ret) {
-		dev_err(&pdev->dev, "failed to add resources\n");
-		goto err3;
-	}
-
-	ret = platform_device_add_data(musb, pdata, sizeof(*pdata));
-	if (ret) {
-		dev_err(&pdev->dev, "failed to add platform_data\n");
-		goto err3;
-	}
-
-	ret = platform_device_add(musb);
-	if (ret) {
-		dev_err(&pdev->dev, "failed to register musb device\n");
+	pinfo = tusb_dev_info;
+	pinfo.parent = &pdev->dev;
+	pinfo.res = musb_resources;
+	pinfo.num_res = ARRAY_SIZE(musb_resources);
+	pinfo.data = pdata;
+	pinfo.size_data = sizeof(*pdata);
+
+	glue->musb = musb = platform_device_register_full(&pinfo);
+	if (IS_ERR(musb)) {
+		ret = PTR_ERR(musb);
+		dev_err(&pdev->dev, "failed to register musb device: %d\n", ret);
 		goto err3;
 	}
 
 	return 0;
 
 err3:
-	platform_device_put(musb);
-
-err1:
 	kfree(glue);
 
 err0:
-- 
cgit 


From 94cb0e7980e27b0a303074568de76080de06a693 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 27 Jun 2013 13:45:16 +0100
Subject: DMA-API: dma: edma.c: no need to explicitly initialize DMA masks

register_platform_device_full() can setup the DMA mask provided the
appropriate member is set in struct platform_device_info.  So lets
make that be the case.  This avoids a direct reference to the DMA
masks by this driver.

While here, add the dma_set_mask_and_coherent() call which the DMA API
requires DMA-using drivers to call.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/dma/edma.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index ff50ff4c6a57..fd5e48c29746 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -631,6 +631,10 @@ static int edma_probe(struct platform_device *pdev)
 	struct edma_cc *ecc;
 	int ret;
 
+	ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
+
 	ecc = devm_kzalloc(&pdev->dev, sizeof(*ecc), GFP_KERNEL);
 	if (!ecc) {
 		dev_err(&pdev->dev, "Can't allocate controller\n");
@@ -702,11 +706,13 @@ static struct platform_device *pdev0, *pdev1;
 static const struct platform_device_info edma_dev_info0 = {
 	.name = "edma-dma-engine",
 	.id = 0,
+	.dma_mask = DMA_BIT_MASK(32),
 };
 
 static const struct platform_device_info edma_dev_info1 = {
 	.name = "edma-dma-engine",
 	.id = 1,
+	.dma_mask = DMA_BIT_MASK(32),
 };
 
 static int edma_init(void)
@@ -720,8 +726,6 @@ static int edma_init(void)
 			ret = PTR_ERR(pdev0);
 			goto out;
 		}
-		pdev0->dev.dma_mask = &pdev0->dev.coherent_dma_mask;
-		pdev0->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 	}
 
 	if (EDMA_CTLRS == 2) {
@@ -731,8 +735,6 @@ static int edma_init(void)
 			platform_device_unregister(pdev0);
 			ret = PTR_ERR(pdev1);
 		}
-		pdev1->dev.dma_mask = &pdev1->dev.coherent_dma_mask;
-		pdev1->dev.coherent_dma_mask = DMA_BIT_MASK(32);
 	}
 
 out:
-- 
cgit 


From 20d897e45c7d84c31c89d37839ab4453d000a004 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 27 Jun 2013 14:14:43 +0100
Subject: DMA-API: dcdbas: update DMA mask handing

dcdbas was explicitly initializing DMA masks thusly:
	dcdbas_pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
	dcdbas_pdev->dev.dma_mask = &dcdbas_pdev->dev.coherent_dma_mask;
which bypasses the architecture check.  Moreover, it is creating the
dcdbas_pdev device itself, and using the platform_device_register_full()
avoids some of this explicit initialization.

Convert the driver to use platform_device_register_full(), and as it
makes use of coherent DMA, also call dma_set_coherent_mask() to ensure
that the architecture gets to check the mask.

Tested-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/firmware/dcdbas.c | 32 +++++++++++++++++++-------------
 1 file changed, 19 insertions(+), 13 deletions(-)

diff --git a/drivers/firmware/dcdbas.c b/drivers/firmware/dcdbas.c
index ff080ee20197..1b5e8e46226d 100644
--- a/drivers/firmware/dcdbas.c
+++ b/drivers/firmware/dcdbas.c
@@ -545,12 +545,15 @@ static int dcdbas_probe(struct platform_device *dev)
 	host_control_action = HC_ACTION_NONE;
 	host_control_smi_type = HC_SMITYPE_NONE;
 
+	dcdbas_pdev = dev;
+
 	/*
 	 * BIOS SMI calls require buffer addresses be in 32-bit address space.
 	 * This is done by setting the DMA mask below.
 	 */
-	dcdbas_pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
-	dcdbas_pdev->dev.dma_mask = &dcdbas_pdev->dev.coherent_dma_mask;
+	error = dma_set_coherent_mask(&dcdbas_pdev->dev, DMA_BIT_MASK(32));
+	if (error)
+		return error;
 
 	error = sysfs_create_group(&dev->dev.kobj, &dcdbas_attr_group);
 	if (error)
@@ -581,6 +584,14 @@ static struct platform_driver dcdbas_driver = {
 	.remove		= dcdbas_remove,
 };
 
+static const struct platform_device_info dcdbas_dev_info __initdata = {
+	.name		= DRIVER_NAME,
+	.id		= -1,
+	.dma_mask	= DMA_BIT_MASK(32),
+};
+
+static struct platform_device *dcdbas_pdev_reg;
+
 /**
  * dcdbas_init: initialize driver
  */
@@ -592,20 +603,14 @@ static int __init dcdbas_init(void)
 	if (error)
 		return error;
 
-	dcdbas_pdev = platform_device_alloc(DRIVER_NAME, -1);
-	if (!dcdbas_pdev) {
-		error = -ENOMEM;
+	dcdbas_pdev_reg = platform_device_register_full(&dcdbas_dev_info);
+	if (IS_ERR(dcdbas_pdev_reg)) {
+		error = PTR_ERR(dcdbas_pdev_reg);
 		goto err_unregister_driver;
 	}
 
-	error = platform_device_add(dcdbas_pdev);
-	if (error)
-		goto err_free_device;
-
 	return 0;
 
- err_free_device:
-	platform_device_put(dcdbas_pdev);
  err_unregister_driver:
 	platform_driver_unregister(&dcdbas_driver);
 	return error;
@@ -628,8 +633,9 @@ static void __exit dcdbas_exit(void)
 	 * all sysfs attributes belonging to this module have been
 	 * released.
 	 */
-	smi_data_buf_free();
-	platform_device_unregister(dcdbas_pdev);
+	if (dcdbas_pdev)
+		smi_data_buf_free();
+	platform_device_unregister(dcdbas_pdev_reg);
 	platform_driver_unregister(&dcdbas_driver);
 }
 
-- 
cgit 


From 536dc1eb6bc36db6a03e002b421a0b473404b397 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Mon, 1 Jul 2013 15:55:02 +0100
Subject: DMA-API: firmware/google/gsmi.c: avoid direct access to DMA masks

This driver doesn't need to directly access DMA masks if it uses the
platform_device_register_full() API rather than
platform_device_register_simple() - the former function can initialize
the DMA mask appropriately.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/firmware/google/gsmi.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/firmware/google/gsmi.c b/drivers/firmware/google/gsmi.c
index 6eb535ffeddc..e5a67b24587a 100644
--- a/drivers/firmware/google/gsmi.c
+++ b/drivers/firmware/google/gsmi.c
@@ -764,6 +764,13 @@ static __init int gsmi_system_valid(void)
 static struct kobject *gsmi_kobj;
 static struct efivars efivars;
 
+static const struct platform_device_info gsmi_dev_info = {
+	.name		= "gsmi",
+	.id		= -1,
+	/* SMI callbacks require 32bit addresses */
+	.dma_mask	= DMA_BIT_MASK(32),
+};
+
 static __init int gsmi_init(void)
 {
 	unsigned long flags;
@@ -776,7 +783,7 @@ static __init int gsmi_init(void)
 	gsmi_dev.smi_cmd = acpi_gbl_FADT.smi_command;
 
 	/* register device */
-	gsmi_dev.pdev = platform_device_register_simple("gsmi", -1, NULL, 0);
+	gsmi_dev.pdev = platform_device_register_full(&gsmi_dev_info);
 	if (IS_ERR(gsmi_dev.pdev)) {
 		printk(KERN_ERR "gsmi: unable to register platform device\n");
 		return PTR_ERR(gsmi_dev.pdev);
@@ -785,10 +792,6 @@ static __init int gsmi_init(void)
 	/* SMI access needs to be serialized */
 	spin_lock_init(&gsmi_dev.lock);
 
-	/* SMI callbacks require 32bit addresses */
-	gsmi_dev.pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
-	gsmi_dev.pdev->dev.dma_mask =
-		&gsmi_dev.pdev->dev.coherent_dma_mask;
 	ret = -ENOMEM;
 	gsmi_dev.dma_pool = dma_pool_create("gsmi", &gsmi_dev.pdev->dev,
 					     GSMI_BUF_SIZE, GSMI_BUF_ALIGN, 0);
-- 
cgit 


From 42536b9f9ce38b07ac213c5f4550301f9a0d251d Mon Sep 17 00:00:00 2001
From: Philippe Retornaz <philippe.retornaz@epfl.ch>
Date: Mon, 14 Oct 2013 09:45:17 +0100
Subject: ARM: 7857/1: dma: imx-sdma: setup dma mask
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The dma mask is not configured in the current code.
This was triggered by soc-dmaengine-pcm which allocate the dma
buffers with the imx-sdma as device.
This commit fix audio on imx31.

Signed-off-by: Philippe Rétornaz <philippe.retornaz@epfl.ch>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/dma/imx-sdma.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index fc43603cf0bb..c1fd504cae28 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -1432,6 +1432,10 @@ static int __init sdma_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
+	ret = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32));
+	if (ret)
+		return ret;
+
 	sdma = kzalloc(sizeof(*sdma), GFP_KERNEL);
 	if (!sdma)
 		return -ENOMEM;
-- 
cgit 


From 4dcfa60071b3d23f0181f27d8519f12e37cefbb9 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Tue, 9 Jul 2013 12:14:49 +0100
Subject: ARM: DMA-API: better handing of DMA masks for coherent allocations

We need to start treating DMA masks as something which is specific to
the bus that the device resides on, otherwise we're going to hit all
sorts of nasty issues with LPAE and 32-bit DMA controllers in >32-bit
systems, where memory is offset from PFN 0.

In order to start doing this, we convert the DMA mask to a PFN using
the device specific dma_to_pfn() macro.  This is the reverse of the
pfn_to_dma() macro which is used to get the DMA address for the device.

This gives us a PFN mask, which we can then check against the PFN
limit of the DMA zone.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mm/dma-mapping.c | 51 +++++++++++++++++++++++++++++++++++++++++------
 arch/arm/mm/init.c        |  2 ++
 arch/arm/mm/mm.h          |  2 ++
 3 files changed, 49 insertions(+), 6 deletions(-)

diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index f5e1a8471714..7b3f2426a1fb 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -159,7 +159,7 @@ EXPORT_SYMBOL(arm_coherent_dma_ops);
 
 static u64 get_coherent_dma_mask(struct device *dev)
 {
-	u64 mask = (u64)arm_dma_limit;
+	u64 mask = (u64)DMA_BIT_MASK(32);
 
 	if (dev) {
 		mask = dev->coherent_dma_mask;
@@ -173,10 +173,30 @@ static u64 get_coherent_dma_mask(struct device *dev)
 			return 0;
 		}
 
-		if ((~mask) & (u64)arm_dma_limit) {
-			dev_warn(dev, "coherent DMA mask %#llx is smaller "
-				 "than system GFP_DMA mask %#llx\n",
-				 mask, (u64)arm_dma_limit);
+		/*
+		 * If the mask allows for more memory than we can address,
+		 * and we actually have that much memory, then fail the
+		 * allocation.
+		 */
+		if (sizeof(mask) != sizeof(dma_addr_t) &&
+		    mask > (dma_addr_t)~0 &&
+		    dma_to_pfn(dev, ~0) > arm_dma_pfn_limit) {
+			dev_warn(dev, "Coherent DMA mask %#llx is larger than dma_addr_t allows\n",
+				 mask);
+			dev_warn(dev, "Driver did not use or check the return value from dma_set_coherent_mask()?\n");
+			return 0;
+		}
+
+		/*
+		 * Now check that the mask, when translated to a PFN,
+		 * fits within the allowable addresses which we can
+		 * allocate.
+		 */
+		if (dma_to_pfn(dev, mask) < arm_dma_pfn_limit) {
+			dev_warn(dev, "Coherent DMA mask %#llx (pfn %#lx-%#lx) covers a smaller range of system memory than the DMA zone pfn 0x0-%#lx\n",
+				 mask,
+				 dma_to_pfn(dev, 0), dma_to_pfn(dev, mask) + 1,
+				 arm_dma_pfn_limit + 1);
 			return 0;
 		}
 	}
@@ -1007,8 +1027,27 @@ void arm_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
  */
 int dma_supported(struct device *dev, u64 mask)
 {
-	if (mask < (u64)arm_dma_limit)
+	unsigned long limit;
+
+	/*
+	 * If the mask allows for more memory than we can address,
+	 * and we actually have that much memory, then we must
+	 * indicate that DMA to this device is not supported.
+	 */
+	if (sizeof(mask) != sizeof(dma_addr_t) &&
+	    mask > (dma_addr_t)~0 &&
+	    dma_to_pfn(dev, ~0) > arm_dma_pfn_limit)
+		return 0;
+
+	/*
+	 * Translate the device's DMA mask to a PFN limit.  This
+	 * PFN number includes the page which we can DMA to.
+	 */
+	limit = dma_to_pfn(dev, mask);
+
+	if (limit < arm_dma_pfn_limit)
 		return 0;
+
 	return 1;
 }
 EXPORT_SYMBOL(dma_supported);
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index febaee7ca57b..8aab24f35a5e 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -218,6 +218,7 @@ EXPORT_SYMBOL(arm_dma_zone_size);
  * so a successful GFP_DMA allocation will always satisfy this.
  */
 phys_addr_t arm_dma_limit;
+unsigned long arm_dma_pfn_limit;
 
 static void __init arm_adjust_dma_zone(unsigned long *size, unsigned long *hole,
 	unsigned long dma_size)
@@ -240,6 +241,7 @@ void __init setup_dma_zone(const struct machine_desc *mdesc)
 		arm_dma_limit = PHYS_OFFSET + arm_dma_zone_size - 1;
 	} else
 		arm_dma_limit = 0xffffffff;
+	arm_dma_pfn_limit = arm_dma_limit >> PAGE_SHIFT;
 #endif
 }
 
diff --git a/arch/arm/mm/mm.h b/arch/arm/mm/mm.h
index d5a4e9ad8f0f..d5a982d15a88 100644
--- a/arch/arm/mm/mm.h
+++ b/arch/arm/mm/mm.h
@@ -81,8 +81,10 @@ extern __init void add_static_vm_early(struct static_vm *svm);
 
 #ifdef CONFIG_ZONE_DMA
 extern phys_addr_t arm_dma_limit;
+extern unsigned long arm_dma_pfn_limit;
 #else
 #define arm_dma_limit ((phys_addr_t)~0)
+#define arm_dma_pfn_limit (~0ul >> PAGE_SHIFT)
 #endif
 
 extern phys_addr_t arm_lowmem_limit;
-- 
cgit 


From 9f7e45d83ef09a481cbc4172849bd1fcf88a39ed Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Mon, 29 Jul 2013 14:17:54 +0100
Subject: ARM: 7794/1: block: Rename parameter dma_mask to max_addr for
 blk_queue_bounce_limit()

The blk_queue_bounce_limit() API parameter 'dma_mask' is actually the
maximum address the device can handle rather than a dma_mask. Rename
it accordingly to avoid it being interpreted as dma_mask.

No functional change.

The idea is to fix the bad assumptions about dma_mask wherever it could
be miss-interpreted.

Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 block/blk-settings.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/block/blk-settings.c b/block/blk-settings.c
index c50ecf0ea3b1..026c1517505f 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -195,17 +195,17 @@ EXPORT_SYMBOL(blk_queue_make_request);
 /**
  * blk_queue_bounce_limit - set bounce buffer limit for queue
  * @q: the request queue for the device
- * @dma_mask: the maximum address the device can handle
+ * @max_addr: the maximum address the device can handle
  *
  * Description:
  *    Different hardware can have different requirements as to what pages
  *    it can do I/O directly to. A low level driver can call
  *    blk_queue_bounce_limit to have lower memory pages allocated as bounce
- *    buffers for doing I/O to pages residing above @dma_mask.
+ *    buffers for doing I/O to pages residing above @max_addr.
  **/
-void blk_queue_bounce_limit(struct request_queue *q, u64 dma_mask)
+void blk_queue_bounce_limit(struct request_queue *q, u64 max_addr)
 {
-	unsigned long b_pfn = dma_mask >> PAGE_SHIFT;
+	unsigned long b_pfn = max_addr >> PAGE_SHIFT;
 	int dma = 0;
 
 	q->bounce_gfp = GFP_NOIO;
-- 
cgit 


From 00c8f1623658947a97345ecb86b71232ff540d0d Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Mon, 29 Jul 2013 14:18:48 +0100
Subject: ARM: 7795/1: mm: dma-mapping: Add dma_max_pfn(dev) helper function

Most of the kernel assumes that PFN0 is the start of the physical
memory (RAM). This assumptions is not true on most of the ARM SOCs
and hence and if one try to update the ARM port to follow the assumptions,
we end of breaking the dma bounce limit for few block layer drivers.
One such example is trying to unify the meaning of max*_pfn on ARM
as the bootmem layer expects, breaks few block layer driver dma
bounce limit.

To fix this problem, we introduce dma_max_pfn(dev) generic helper with
a possibility of override from the architecture code. The helper converts
a DMA bitmask of bits to a block PFN number. In all the generic cases,
it is just  "dev->dma_mask >> PAGE_SHIFT" and hence default behavior
is maintained as is.

Subsequent patches will make use of the helper. No functional change.

Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 include/linux/dma-mapping.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/linux/dma-mapping.h b/include/linux/dma-mapping.h
index 27d1421ad42c..fd4aee29ad10 100644
--- a/include/linux/dma-mapping.h
+++ b/include/linux/dma-mapping.h
@@ -153,6 +153,13 @@ static inline int dma_set_seg_boundary(struct device *dev, unsigned long mask)
 		return -EIO;
 }
 
+#ifndef dma_max_pfn
+static inline unsigned long dma_max_pfn(struct device *dev)
+{
+	return *dev->dma_mask >> PAGE_SHIFT;
+}
+#endif
+
 static inline void *dma_zalloc_coherent(struct device *dev, size_t size,
 					dma_addr_t *dma_handle, gfp_t flag)
 {
-- 
cgit 


From 7d35496dd98229cdf923238367fd3b3833fbde52 Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Mon, 29 Jul 2013 14:19:42 +0100
Subject: ARM: 7796/1: scsi: Use dma_max_pfn(dev) helper for bounce_limit
 calculations

DMA bounce limit is the maximum direct DMA'able memory beyond which
bounce buffers has to be used to perform dma operations. SCSI driver
relies on dma_mask but its calculation is based on max_*pfn which
don't have uniform meaning across architectures. So make use of
dma_max_pfn() which is expected to return the DMAable maximum pfn
value across architectures.

Cc: linux-scsi@vger.kernel.org
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/scsi/scsi_lib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index d1549b74e2d1..7bd7f0d5f050 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1684,7 +1684,7 @@ u64 scsi_calculate_bounce_limit(struct Scsi_Host *shost)
 
 	host_dev = scsi_get_device(shost);
 	if (host_dev && host_dev->dma_mask)
-		bounce_limit = *host_dev->dma_mask;
+		bounce_limit = dma_max_pfn(host_dev) << PAGE_SHIFT;
 
 	return bounce_limit;
 }
-- 
cgit 


From 8e0cb8a1f6acf673ef9ab573087020ebafa8da51 Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Mon, 29 Jul 2013 14:20:15 +0100
Subject: ARM: 7797/1: mmc: Use dma_max_pfn(dev) helper for bounce_limit
 calculations

DMA bounce limit is the maximum direct DMA'able memory beyond which
bounce buffers has to be used to perform dma operations. MMC queue layr
relies on dma_mask but its calculation is based on max_*pfn which
don't have uniform meaning across architectures. So make use of
dma_max_pfn() which is expected to return the DMAable maximum pfn
value across architectures.

Cc: Chris Ball <cjb@laptop.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 drivers/mmc/card/queue.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c
index fa9632eb63f1..357bbc54fe4b 100644
--- a/drivers/mmc/card/queue.c
+++ b/drivers/mmc/card/queue.c
@@ -15,6 +15,7 @@
 #include <linux/freezer.h>
 #include <linux/kthread.h>
 #include <linux/scatterlist.h>
+#include <linux/dma-mapping.h>
 
 #include <linux/mmc/card.h>
 #include <linux/mmc/host.h>
@@ -196,7 +197,7 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card,
 	struct mmc_queue_req *mqrq_prev = &mq->mqrq[1];
 
 	if (mmc_dev(host)->dma_mask && *mmc_dev(host)->dma_mask)
-		limit = *mmc_dev(host)->dma_mask;
+		limit = dma_max_pfn(mmc_dev(host)) << PAGE_SHIFT;
 
 	mq->card = card;
 	mq->queue = blk_init_queue(mmc_request_fn, lock);
-- 
cgit 


From 26ba47b18318abe7dadbe9294a611c0e932651d8 Mon Sep 17 00:00:00 2001
From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Thu, 1 Aug 2013 03:12:01 +0100
Subject: ARM: 7805/1: mm: change max*pfn to include the physical offset of
 memory

Most of the kernel code assumes that max*pfn is maximum pfns because
the physical start of memory is expected to be PFN0. Since this
assumption is not true on ARM architectures, the meaning of max*pfn
is number of memory pages. This is done to keep drivers happy which
are making use of of these variable to calculate the dma bounce limit
using dma_mask.

Now since we have a architecture override possibility for DMAable
maximum pfns, lets make meaning of max*pfns as maximum pnfs on ARM
as well.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/include/asm/dma-mapping.h |  8 ++++++++
 arch/arm/mm/init.c                 | 10 ++++------
 2 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 5b579b951503..863cd84eb1a2 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -64,6 +64,7 @@ static inline dma_addr_t virt_to_dma(struct device *dev, void *addr)
 {
 	return (dma_addr_t)__virt_to_bus((unsigned long)(addr));
 }
+
 #else
 static inline dma_addr_t pfn_to_dma(struct device *dev, unsigned long pfn)
 {
@@ -86,6 +87,13 @@ static inline dma_addr_t virt_to_dma(struct device *dev, void *addr)
 }
 #endif
 
+/* The ARM override for dma_max_pfn() */
+static inline unsigned long dma_max_pfn(struct device *dev)
+{
+	return PHYS_PFN_OFFSET + dma_to_pfn(dev, *dev->dma_mask);
+}
+#define dma_max_pfn(dev) dma_max_pfn(dev)
+
 /*
  * DMA errors are defined by all-bits-set in the DMA address.
  */
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c
index 8aab24f35a5e..d50533c2b409 100644
--- a/arch/arm/mm/init.c
+++ b/arch/arm/mm/init.c
@@ -426,12 +426,10 @@ void __init bootmem_init(void)
 	 * This doesn't seem to be used by the Linux memory manager any
 	 * more, but is used by ll_rw_block.  If we can get rid of it, we
 	 * also get rid of some of the stuff above as well.
-	 *
-	 * Note: max_low_pfn and max_pfn reflect the number of _pages_ in
-	 * the system, not the maximum PFN.
 	 */
-	max_low_pfn = max_low - PHYS_PFN_OFFSET;
-	max_pfn = max_high - PHYS_PFN_OFFSET;
+	min_low_pfn = min;
+	max_low_pfn = max_low;
+	max_pfn = max_high;
 }
 
 /*
@@ -537,7 +535,7 @@ static inline void free_area_high(unsigned long pfn, unsigned long end)
 static void __init free_highpages(void)
 {
 #ifdef CONFIG_HIGHMEM
-	unsigned long max_low = max_low_pfn + PHYS_PFN_OFFSET;
+	unsigned long max_low = max_low_pfn;
 	struct memblock_region *mem, *res;
 
 	/* set highmem page free */
-- 
cgit 


From 9ade09d6c62e48fba6c74ce3958ca1035dfd8427 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Tue, 29 Oct 2013 00:52:19 -0700
Subject: ASoC: rcar: remove original filter from rsnd_dma_init()

Remove original filter from rsnd_dma_init(),
and use SH-DMA suitable filter.
This new style can be used from Device Tree.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/sh/rcar/core.c | 31 ++++++++++++++++++++-----------
 1 file changed, 20 insertions(+), 11 deletions(-)

diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index b234ed663073..78c35b44fc04 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -94,6 +94,7 @@
  *
  */
 #include <linux/pm_runtime.h>
+#include <linux/shdma-base.h>
 #include "rsnd.h"
 
 #define RSND_RATES SNDRV_PCM_RATE_8000_96000
@@ -209,13 +210,6 @@ int rsnd_dma_available(struct rsnd_dma *dma)
 	return !!dma->chan;
 }
 
-static bool rsnd_dma_filter(struct dma_chan *chan, void *param)
-{
-	chan->private = param;
-
-	return true;
-}
-
 int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
 		  int is_play, int id,
 		  int (*inquiry)(struct rsnd_dma *dma,
@@ -223,7 +217,9 @@ int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
 		  int (*complete)(struct rsnd_dma *dma))
 {
 	struct device *dev = rsnd_priv_to_dev(priv);
+	struct dma_slave_config cfg;
 	dma_cap_mask_t mask;
+	int ret;
 
 	if (dma->chan) {
 		dev_err(dev, "it already has dma channel\n");
@@ -233,15 +229,23 @@ int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
 	dma_cap_zero(mask);
 	dma_cap_set(DMA_SLAVE, mask);
 
-	dma->slave.shdma_slave.slave_id = id;
-
-	dma->chan = dma_request_channel(mask, rsnd_dma_filter,
-					&dma->slave.shdma_slave);
+	dma->chan = dma_request_slave_channel_compat(mask, shdma_chan_filter,
+						     (void *)id, dev,
+						     is_play ? "tx" : "rx");
 	if (!dma->chan) {
 		dev_err(dev, "can't get dma channel\n");
 		return -EIO;
 	}
 
+	cfg.slave_id	= id;
+	cfg.dst_addr	= 0; /* use default addr when playback */
+	cfg.src_addr	= 0; /* use default addr when capture */
+	cfg.direction	= is_play ? DMA_MEM_TO_DEV : DMA_DEV_TO_MEM;
+
+	ret = dmaengine_slave_config(dma->chan, &cfg);
+	if (ret < 0)
+		goto rsnd_dma_init_err;
+
 	dma->dir = is_play ? DMA_TO_DEVICE : DMA_FROM_DEVICE;
 	dma->priv = priv;
 	dma->inquiry = inquiry;
@@ -249,6 +253,11 @@ int rsnd_dma_init(struct rsnd_priv *priv, struct rsnd_dma *dma,
 	INIT_WORK(&dma->work, rsnd_dma_do_work);
 
 	return 0;
+
+rsnd_dma_init_err:
+	rsnd_dma_quit(priv, dma);
+
+	return ret;
 }
 
 void  rsnd_dma_quit(struct rsnd_priv *priv,
-- 
cgit 


From 5df682b297f6b23ec35615ed7bb50cbb25d25869 Mon Sep 17 00:00:00 2001
From: Joseph Salisbury <joseph.salisbury@canonical.com>
Date: Wed, 16 Oct 2013 09:19:40 -0700
Subject: Input: cypress_ps2 - do not consider data bad if palm is detected

If hardware (or firmware) detects palm on the surface of the device it does
not mean that the data packet is bad from the protocol standpoint. Instead
of reporting PSMOUSE_BAD_DATA in this case simply threat it as if nothing
touches the surface.

BugLink: http://bugs.launchpad.net/bugs/1229361

Signed-off-by: Joseph Salisbury <joseph.salisbury@canonical.com>
Tested-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/mouse/cypress_ps2.c | 19 +++----------------
 1 file changed, 3 insertions(+), 16 deletions(-)

diff --git a/drivers/input/mouse/cypress_ps2.c b/drivers/input/mouse/cypress_ps2.c
index 1d81a7467501..a5869a856ea5 100644
--- a/drivers/input/mouse/cypress_ps2.c
+++ b/drivers/input/mouse/cypress_ps2.c
@@ -439,7 +439,7 @@ static int cypress_get_finger_count(unsigned char header_byte)
 			case 2: return 5;
 			default:
 				/* Invalid contact (e.g. palm). Ignore it. */
-				return -1;
+				return 0;
 		}
 	}
 
@@ -452,17 +452,10 @@ static int cypress_parse_packet(struct psmouse *psmouse,
 {
 	unsigned char *packet = psmouse->packet;
 	unsigned char header_byte = packet[0];
-	int contact_cnt;
 
 	memset(report_data, 0, sizeof(struct cytp_report_data));
 
-	contact_cnt = cypress_get_finger_count(header_byte);
-
-	if (contact_cnt < 0) /* e.g. palm detect */
-		return -EINVAL;
-
-	report_data->contact_cnt = contact_cnt;
-
+	report_data->contact_cnt = cypress_get_finger_count(header_byte);
 	report_data->tap = (header_byte & ABS_MULTIFINGER_TAP) ? 1 : 0;
 
 	if (report_data->contact_cnt == 1) {
@@ -535,11 +528,9 @@ static void cypress_process_packet(struct psmouse *psmouse, bool zero_pkt)
 	int slots[CYTP_MAX_MT_SLOTS];
 	int n;
 
-	if (cypress_parse_packet(psmouse, cytp, &report_data))
-		return;
+	cypress_parse_packet(psmouse, cytp, &report_data);
 
 	n = report_data.contact_cnt;
-
 	if (n > CYTP_MAX_MT_SLOTS)
 		n = CYTP_MAX_MT_SLOTS;
 
@@ -605,10 +596,6 @@ static psmouse_ret_t cypress_validate_byte(struct psmouse *psmouse)
 		return PSMOUSE_BAD_DATA;
 
 	contact_cnt = cypress_get_finger_count(packet[0]);
-
-	if (contact_cnt < 0)
-		return PSMOUSE_BAD_DATA;
-
 	if (cytp->mode & CYTP_BIT_ABS_NO_PRESSURE)
 		cypress_set_packet_size(psmouse, contact_cnt == 2 ? 7 : 4);
 	else
-- 
cgit 


From 45e8815fc1b7ed66729bbbc9464228ee1769b580 Mon Sep 17 00:00:00 2001
From: Arnaud Ebalard <arno@natisbad.org>
Date: Tue, 22 Oct 2013 20:56:13 +0200
Subject: ARM: mvebu: Add Netgear ReadyNAS 104 board

Main hardware parts of the (Armada 370 based) NETGEAR ReadyNAS 104 are
supported by mainline kernel (USB 3.0 rear ports, USB 2.0 front port,
Gigabit controller and PHYs, serial port, LEDs, buttons, SATA ports,
G762 fan controller) and referenced in provided .dts file. Some additonal
work remains for:

 - Intersil ISL12057 I2C RTC and Alarm chip: working driver but needs
   to be splitted for submission of RTC part first;
 - Front LCD (Winstar 1602G): driver needs to be written
 - Armada NAND controller (to access onboard 128MB of NAND): support
   being pushed by @free-electrons people
 - 4 front SATA LEDs controlled via GPIO brought by NXP PCA9554:
   driver is available upstream. Not referenced/tested yet.

but the device is usable w/o those.

Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/Makefile                     |   1 +
 arch/arm/boot/dts/armada-370-netgear-rn104.dts | 193 +++++++++++++++++++++++++
 2 files changed, 194 insertions(+)
 create mode 100644 arch/arm/boot/dts/armada-370-netgear-rn104.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index f2b1c33efbfc..55fade67a629 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -108,6 +108,7 @@ dtb-$(CONFIG_ARCH_MSM) += msm8660-surf.dtb \
 dtb-$(CONFIG_ARCH_MVEBU) += armada-370-db.dtb \
 	armada-370-mirabox.dtb \
 	armada-370-netgear-rn102.dtb \
+	armada-370-netgear-rn104.dtb \
 	armada-370-rd.dtb \
 	armada-xp-axpwifiap.dtb \
 	armada-xp-db.dtb \
diff --git a/arch/arm/boot/dts/armada-370-netgear-rn104.dts b/arch/arm/boot/dts/armada-370-netgear-rn104.dts
new file mode 100644
index 000000000000..b0b32f5fbeb4
--- /dev/null
+++ b/arch/arm/boot/dts/armada-370-netgear-rn104.dts
@@ -0,0 +1,193 @@
+/*
+ * Device Tree file for NETGEAR ReadyNAS 104
+ *
+ * Copyright (C) 2013, Arnaud EBALARD <arno@natisbad.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+/dts-v1/;
+
+#include "armada-370.dtsi"
+
+/ {
+	model = "NETGEAR ReadyNAS 104";
+	compatible = "netgear,readynas-104", "marvell,armada370", "marvell,armada-370-xp";
+
+	chosen {
+		bootargs = "console=ttyS0,115200 earlyprintk";
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x20000000>; /* 512 MB */
+	};
+
+	soc {
+		ranges = <MBUS_ID(0xf0, 0x01) 0 0xd0000000 0x100000
+			  MBUS_ID(0x01, 0xe0) 0 0xfff00000 0x100000>;
+
+		pcie-controller {
+			status = "okay";
+
+			/* Connected to FL1009 USB 3.0 controller */
+			pcie@1,0 {
+				/* Port 0, Lane 0 */
+				status = "okay";
+			};
+
+			/* Connected to Marvell 88SE9215 SATA controller */
+			pcie@2,0 {
+				/* Port 1, Lane 0 */
+				status = "okay";
+			};
+		};
+
+		internal-regs {
+			serial@12000 {
+				clock-frequency = <200000000>;
+				status = "okay";
+			};
+
+			pinctrl {
+				poweroff: poweroff {
+					marvell,pins = "mpp60";
+					marvell,function = "gpio";
+				};
+
+				backup_key_pin: backup-key-pin {
+					marvell,pins = "mpp52";
+					marvell,function = "gpio";
+				};
+
+				power_key_pin: power-key-pin {
+					marvell,pins = "mpp62";
+					marvell,function = "gpio";
+				};
+
+				backup_led_pin: backup-led-pin {
+					marvell,pins = "mpp63";
+					marvell,function = "gpo";
+				};
+
+				power_led_pin: power-led-pin {
+					marvell,pins = "mpp64";
+					marvell,function = "gpio";
+				};
+
+				reset_key_pin: reset-key-pin {
+					marvell,pins = "mpp65";
+					marvell,function = "gpio";
+				};
+			};
+
+			mdio {
+				phy0: ethernet-phy@0 {
+					reg = <0>;
+				};
+
+				phy1: ethernet-phy@1 {
+					reg = <1>;
+				};
+			};
+
+			ethernet@70000 {
+				status = "okay";
+				phy = <&phy0>;
+				phy-mode = "rgmii-id";
+			};
+
+			ethernet@74000 {
+				status = "okay";
+				phy = <&phy1>;
+				phy-mode = "rgmii-id";
+			};
+
+			usb@50000 {
+				status = "okay";
+			};
+
+			i2c@11000 {
+				compatible = "marvell,mv64xxx-i2c";
+				clock-frequency = <100000>;
+				status = "okay";
+
+				g762: g762@3e {
+					compatible = "gmt,g762";
+					reg = <0x3e>;
+					clocks = <&g762_clk>; /* input clock */
+					fan_gear_mode = <0>;
+					fan_startv = <1>;
+					pwm_polarity = <0>;
+				};
+			};
+		};
+	};
+
+	clocks {
+	       #address-cells = <1>;
+	       #size-cells = <0>;
+
+	       g762_clk: fixedclk {
+			 compatible = "fixed-clock";
+			 #clock-cells = <0>;
+			 clock-frequency = <8192>;
+	       };
+	};
+
+	gpio_leds {
+		compatible = "gpio-leds";
+		pinctrl-0 = <&backup_led_pin &power_led_pin>;
+		pinctrl-names = "default";
+
+		blue_backup_led {
+			label = "rn104:blue:backup";
+			gpios = <&gpio1 31 0>;   /* GPIO 63 Active High */
+			default-state = "off";
+		};
+
+		blue_power_led {
+			label = "rn104:blue:pwr";
+			gpios = <&gpio2 0 1>;    /* GPIO 64 Active Low */
+			linux,default-trigger = "keep";
+		};
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		pinctrl-0 = <&backup_key_pin
+			     &power_key_pin
+			     &reset_key_pin>;
+		pinctrl-names = "default";
+
+		button@1 {
+			label = "Backup Button";
+			linux,code = <133>;     /* KEY_COPY */
+			gpios = <&gpio1 20 1>;
+		};
+
+		button@2 {
+			label = "Power Button";
+			linux,code = <116>;     /* KEY_POWER */
+			gpios = <&gpio1 30 0>;
+		};
+
+		button@3 {
+			label = "Reset Button";
+			linux,code = <0x198>;   /* KEY_RESTART */
+			gpios = <&gpio2 1 1>;
+		};
+	};
+
+	gpio_poweroff {
+		compatible = "gpio-poweroff";
+		pinctrl-0 = <&poweroff>;
+		pinctrl-names = "default";
+		gpios = <&gpio1 28 1>;
+	};
+};
-- 
cgit 


From 92eb77d0ffbaa71b501a0a8dabf09a351bf4267f Mon Sep 17 00:00:00 2001
From: Daniel Stone <daniel@fooishbar.org>
Date: Thu, 31 Oct 2013 00:25:34 -0700
Subject: Input: evdev - fall back to vmalloc for client event buffer

evdev always tries to allocate the event buffer for clients using
kzalloc rather than vmalloc, presumably to avoid mapping overhead where
possible.  However, drivers like bcm5974, which claims support for
reporting 16 fingers simultaneously, can have an extraordinarily large
buffer.  The resultant contiguous order-4 allocation attempt fails due
to fragmentation, and the device is thus unusable until reboot.

Try kzalloc if we can to avoid the mapping overhead, but if that fails,
fall back to vzalloc.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/evdev.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index b6ded17b3be3..a06e12552886 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -18,6 +18,8 @@
 #include <linux/poll.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/input/mt.h>
@@ -369,7 +371,11 @@ static int evdev_release(struct inode *inode, struct file *file)
 	mutex_unlock(&evdev->mutex);
 
 	evdev_detach_client(evdev, client);
-	kfree(client);
+
+	if (is_vmalloc_addr(client))
+		vfree(client);
+	else
+		kfree(client);
 
 	evdev_close_device(evdev);
 
@@ -389,12 +395,14 @@ static int evdev_open(struct inode *inode, struct file *file)
 {
 	struct evdev *evdev = container_of(inode->i_cdev, struct evdev, cdev);
 	unsigned int bufsize = evdev_compute_buffer_size(evdev->handle.dev);
+	unsigned int size = sizeof(struct evdev_client) +
+					bufsize * sizeof(struct input_event);
 	struct evdev_client *client;
 	int error;
 
-	client = kzalloc(sizeof(struct evdev_client) +
-				bufsize * sizeof(struct input_event),
-			 GFP_KERNEL);
+	client = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
+	if (!client)
+		client = vzalloc(size);
 	if (!client)
 		return -ENOMEM;
 
-- 
cgit 


From 78551277e4df57864b0b0e7f85c23ede2be2edb8 Mon Sep 17 00:00:00 2001
From: Tom Gundersen <teg@jklm.no>
Date: Thu, 31 Oct 2013 00:33:54 -0700
Subject: Input: i8042 - add PNP modaliases

This allows the module to be autoloaded in the common case.

In order to work on non-PnP systems the module should be compiled in or
loaded unconditionally at boot (c.f. modules-load.d(5)), as before.

Signed-off-by: Tom Gundersen <teg@jklm.no>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/serio/i8042-x86ia64io.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 5f306f79da0c..0ec9abbe31fe 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -765,6 +765,7 @@ static struct pnp_device_id pnp_kbd_devids[] = {
 	{ .id = "CPQA0D7", .driver_data = 0 },
 	{ .id = "", },
 };
+MODULE_DEVICE_TABLE(pnp, pnp_kbd_devids);
 
 static struct pnp_driver i8042_pnp_kbd_driver = {
 	.name           = "i8042 kbd",
@@ -786,6 +787,7 @@ static struct pnp_device_id pnp_aux_devids[] = {
 	{ .id = "SYN0801", .driver_data = 0 },
 	{ .id = "", },
 };
+MODULE_DEVICE_TABLE(pnp, pnp_aux_devids);
 
 static struct pnp_driver i8042_pnp_aux_driver = {
 	.name           = "i8042 aux",
-- 
cgit 


From bcd2623073e98f69f84720308db0b142c4da0bd6 Mon Sep 17 00:00:00 2001
From: Tom Gundersen <teg@jklm.no>
Date: Thu, 31 Oct 2013 00:38:30 -0700
Subject: Input: allow deselecting serio drivers even without CONFIG_EXPERT

There is plenty of consumer hardware (e.g., mac books) that does not use AT
keyboards or PS/2 mice. It therefore makes sense for distro kernels to
build the related drivers as modules to avoid loading them on hardware that
does not need them. As such, these options should no longer be protected by
EXPERT.

Moreover, building these drivers as modules gets rid of the following ugly
error during boot:

[    2.337745] i8042: PNP: No PS/2 controller found. Probing ports directly.
[    3.439537] i8042: No controller found

Signed-off-by: Tom Gundersen <teg@jklm.no>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/keyboard/Kconfig | 4 ++--
 drivers/input/serio/Kconfig    | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index c1edd39bc5ba..1fa37e6d004e 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -2,7 +2,7 @@
 # Input core configuration
 #
 menuconfig INPUT_KEYBOARD
-	bool "Keyboards" if EXPERT || !X86
+	bool "Keyboards"
 	default y
 	help
 	  Say Y here, and a list of supported keyboards will be displayed.
@@ -67,7 +67,7 @@ config KEYBOARD_ATARI
 	  module will be called atakbd.
 
 config KEYBOARD_ATKBD
-	tristate "AT keyboard" if EXPERT || !X86
+	tristate "AT keyboard"
 	default y
 	select SERIO
 	select SERIO_LIBPS2
diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig
index 296cb88d7008..5a96acb667ea 100644
--- a/drivers/input/serio/Kconfig
+++ b/drivers/input/serio/Kconfig
@@ -2,7 +2,7 @@
 # Input core configuration
 #
 config SERIO
-	tristate "Serial I/O support" if EXPERT || !X86
+	tristate "Serial I/O support"
 	default y
 	help
 	  Say Yes here if you have any input device that uses serial I/O to
@@ -19,7 +19,7 @@ config SERIO
 if SERIO
 
 config SERIO_I8042
-	tristate "i8042 PC Keyboard controller" if EXPERT || !X86
+	tristate "i8042 PC Keyboard controller"
 	default y
 	depends on !PARISC && (!ARM || ARCH_SHARK || FOOTBRIDGE_HOST) && \
 		   (!SUPERH || SH_CAYMAN) && !M68K && !BLACKFIN && !S390 && \
@@ -170,7 +170,7 @@ config SERIO_MACEPS2
 	  module will be called maceps2.
 
 config SERIO_LIBPS2
-	tristate "PS/2 driver library" if EXPERT
+	tristate "PS/2 driver library"
 	depends on SERIO_I8042 || SERIO_I8042=n
 	help
 	  Say Y here if you are using a driver for device connected
-- 
cgit 


From dfaaed08ecc01bd513248ba7999daf50ce028352 Mon Sep 17 00:00:00 2001
From: Tom Gundersen <teg@jklm.no>
Date: Thu, 31 Oct 2013 00:44:49 -0700
Subject: Input: mousedev - allow disabling even without CONFIG_EXPERT

Moust (if not all) modern software, including X, uses /dev/eventX rather than
the legacy /dev/mouseX devices. It therefore makes sense for general-purpose
(distro) kernels to use MOUSEDV=m (or even n), so let's drop the EXPERT=y
requirement.

Signed-off-by: Tom Gundersen <teg@jklm.no>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/Kconfig b/drivers/input/Kconfig
index 38b523a1ece0..a11ff74a5127 100644
--- a/drivers/input/Kconfig
+++ b/drivers/input/Kconfig
@@ -80,7 +80,7 @@ config INPUT_MATRIXKMAP
 comment "Userland interfaces"
 
 config INPUT_MOUSEDEV
-	tristate "Mouse interface" if EXPERT
+	tristate "Mouse interface"
 	default y
 	help
 	  Say Y here if you want your mouse to be accessible as char devices
-- 
cgit 


From 95079b8aa84015dc9032e42a1844dd78f76c3d2f Mon Sep 17 00:00:00 2001
From: Kang Hu <hukangustc@gmail.com>
Date: Thu, 31 Oct 2013 00:47:53 -0700
Subject: Input: remove a redundant max() call

dev->hint_events_per_packet is guaranteed to be >= packet_size.
so an extra max() call is not needed.

Signed-off-by: Kang Hu <hukangustc@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/input.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/input.c b/drivers/input/input.c
index c04469928925..fb513daa40f7 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -2048,7 +2048,7 @@ int input_register_device(struct input_dev *dev)
 	if (dev->hint_events_per_packet < packet_size)
 		dev->hint_events_per_packet = packet_size;
 
-	dev->max_vals = max(dev->hint_events_per_packet, packet_size) + 2;
+	dev->max_vals = dev->hint_events_per_packet + 2;
 	dev->vals = kcalloc(dev->max_vals, sizeof(*dev->vals), GFP_KERNEL);
 	if (!dev->vals) {
 		error = -ENOMEM;
-- 
cgit 


From e4a42f655fdbfadc41f8b2f95dca5e5d395015f5 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Thu, 31 Oct 2013 00:48:28 -0700
Subject: Input: sh_keysc - enable the driver on all ARM platforms

Renesas ARM platforms are transitioning from single-platform to
multi-platform kernels using the new ARCH_SHMOBILE_MULTI. Make the
driver available on all ARM platforms to enable it on both ARCH_SHMOBILE
and ARCH_SHMOBILE_MULTI, and increase build testing coverage with
COMPILE_TEST.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/keyboard/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 1fa37e6d004e..bb174c1a9886 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -525,7 +525,7 @@ config KEYBOARD_SUNKBD
 
 config KEYBOARD_SH_KEYSC
 	tristate "SuperH KEYSC keypad support"
-	depends on SUPERH || ARCH_SHMOBILE
+	depends on SUPERH || ARM || COMPILE_TEST
 	help
 	  Say Y here if you want to use a keypad attached to the KEYSC block
 	  on SuperH processors such as sh7722 and sh7343.
-- 
cgit 


From c6d81bd7237b5785080087bcf796ce456ef69557 Mon Sep 17 00:00:00 2001
From: Heiko Stübner <heiko@sntech.de>
Date: Thu, 31 Oct 2013 01:25:32 -0700
Subject: Input: add driver for Neonode zForce based touchscreens

This adds a driver for touchscreens using the zforce infrared
technology from Neonode connected via i2c to the host system.

It supports multitouch with up to two fingers and tracking of the
contacts in hardware.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/Kconfig       |  13 +
 drivers/input/touchscreen/Makefile      |   1 +
 drivers/input/touchscreen/zforce_ts.c   | 836 ++++++++++++++++++++++++++++++++
 include/linux/platform_data/zforce_ts.h |  26 +
 4 files changed, 876 insertions(+)
 create mode 100644 drivers/input/touchscreen/zforce_ts.c
 create mode 100644 include/linux/platform_data/zforce_ts.h

diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index e09ec67957a3..00d1e547b211 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -919,4 +919,17 @@ config TOUCHSCREEN_TPS6507X
 	  To compile this driver as a module, choose M here: the
 	  module will be called tps6507x_ts.
 
+config TOUCHSCREEN_ZFORCE
+	tristate "Neonode zForce infrared touchscreens"
+	depends on I2C
+	depends on GPIOLIB
+	help
+	  Say Y here if you have a touchscreen using the zforce
+	  infraread technology from Neonode.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called zforce_ts.
+
 endif
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index f5216c1bf53e..7587883b8d38 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -75,3 +75,4 @@ obj-$(CONFIG_TOUCHSCREEN_WM97XX_MAINSTONE)	+= mainstone-wm97xx.o
 obj-$(CONFIG_TOUCHSCREEN_WM97XX_ZYLONITE)	+= zylonite-wm97xx.o
 obj-$(CONFIG_TOUCHSCREEN_W90X900)	+= w90p910_ts.o
 obj-$(CONFIG_TOUCHSCREEN_TPS6507X)	+= tps6507x-ts.o
+obj-$(CONFIG_TOUCHSCREEN_ZFORCE)	+= zforce_ts.o
diff --git a/drivers/input/touchscreen/zforce_ts.c b/drivers/input/touchscreen/zforce_ts.c
new file mode 100644
index 000000000000..75762d6ff3ba
--- /dev/null
+++ b/drivers/input/touchscreen/zforce_ts.c
@@ -0,0 +1,836 @@
+/*
+ * Copyright (C) 2012-2013 MundoReader S.L.
+ * Author: Heiko Stuebner <heiko@sntech.de>
+ *
+ * based in parts on Nook zforce driver
+ *
+ * Copyright (C) 2010 Barnes & Noble, Inc.
+ * Author: Pieter Truter<ptruter@intrinsyc.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/hrtimer.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/i2c.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/device.h>
+#include <linux/sysfs.h>
+#include <linux/input/mt.h>
+#include <linux/platform_data/zforce_ts.h>
+
+#define WAIT_TIMEOUT		msecs_to_jiffies(1000)
+
+#define FRAME_START		0xee
+
+/* Offsets of the different parts of the payload the controller sends */
+#define PAYLOAD_HEADER		0
+#define PAYLOAD_LENGTH		1
+#define PAYLOAD_BODY		2
+
+/* Response offsets */
+#define RESPONSE_ID		0
+#define RESPONSE_DATA		1
+
+/* Commands */
+#define COMMAND_DEACTIVATE	0x00
+#define COMMAND_INITIALIZE	0x01
+#define COMMAND_RESOLUTION	0x02
+#define COMMAND_SETCONFIG	0x03
+#define COMMAND_DATAREQUEST	0x04
+#define COMMAND_SCANFREQ	0x08
+#define COMMAND_STATUS		0X1e
+
+/*
+ * Responses the controller sends as a result of
+ * command requests
+ */
+#define RESPONSE_DEACTIVATE	0x00
+#define RESPONSE_INITIALIZE	0x01
+#define RESPONSE_RESOLUTION	0x02
+#define RESPONSE_SETCONFIG	0x03
+#define RESPONSE_SCANFREQ	0x08
+#define RESPONSE_STATUS		0X1e
+
+/*
+ * Notifications are send by the touch controller without
+ * being requested by the driver and include for example
+ * touch indications
+ */
+#define NOTIFICATION_TOUCH		0x04
+#define NOTIFICATION_BOOTCOMPLETE	0x07
+#define NOTIFICATION_OVERRUN		0x25
+#define NOTIFICATION_PROXIMITY		0x26
+#define NOTIFICATION_INVALID_COMMAND	0xfe
+
+#define ZFORCE_REPORT_POINTS		2
+#define ZFORCE_MAX_AREA			0xff
+
+#define STATE_DOWN			0
+#define STATE_MOVE			1
+#define STATE_UP			2
+
+#define SETCONFIG_DUALTOUCH		(1 << 0)
+
+struct zforce_point {
+	int coord_x;
+	int coord_y;
+	int state;
+	int id;
+	int area_major;
+	int area_minor;
+	int orientation;
+	int pressure;
+	int prblty;
+};
+
+/*
+ * @client		the i2c_client
+ * @input		the input device
+ * @suspending		in the process of going to suspend (don't emit wakeup
+ *			events for commands executed to suspend the device)
+ * @suspended		device suspended
+ * @access_mutex	serialize i2c-access, to keep multipart reads together
+ * @command_done	completion to wait for the command result
+ * @command_mutex	serialize commands send to the ic
+ * @command_waiting	the id of the command that that is currently waiting
+ *			for a result
+ * @command_result	returned result of the command
+ */
+struct zforce_ts {
+	struct i2c_client	*client;
+	struct input_dev	*input;
+	const struct zforce_ts_platdata *pdata;
+	char			phys[32];
+
+	bool			suspending;
+	bool			suspended;
+	bool			boot_complete;
+
+	/* Firmware version information */
+	u16			version_major;
+	u16			version_minor;
+	u16			version_build;
+	u16			version_rev;
+
+	struct mutex		access_mutex;
+
+	struct completion	command_done;
+	struct mutex		command_mutex;
+	int			command_waiting;
+	int			command_result;
+};
+
+static int zforce_command(struct zforce_ts *ts, u8 cmd)
+{
+	struct i2c_client *client = ts->client;
+	char buf[3];
+	int ret;
+
+	dev_dbg(&client->dev, "%s: 0x%x\n", __func__, cmd);
+
+	buf[0] = FRAME_START;
+	buf[1] = 1; /* data size, command only */
+	buf[2] = cmd;
+
+	mutex_lock(&ts->access_mutex);
+	ret = i2c_master_send(client, &buf[0], ARRAY_SIZE(buf));
+	mutex_unlock(&ts->access_mutex);
+	if (ret < 0) {
+		dev_err(&client->dev, "i2c send data request error: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int zforce_send_wait(struct zforce_ts *ts, const char *buf, int len)
+{
+	struct i2c_client *client = ts->client;
+	int ret;
+
+	ret = mutex_trylock(&ts->command_mutex);
+	if (!ret) {
+		dev_err(&client->dev, "already waiting for a command\n");
+		return -EBUSY;
+	}
+
+	dev_dbg(&client->dev, "sending %d bytes for command 0x%x\n",
+		buf[1], buf[2]);
+
+	ts->command_waiting = buf[2];
+
+	mutex_lock(&ts->access_mutex);
+	ret = i2c_master_send(client, buf, len);
+	mutex_unlock(&ts->access_mutex);
+	if (ret < 0) {
+		dev_err(&client->dev, "i2c send data request error: %d\n", ret);
+		goto unlock;
+	}
+
+	dev_dbg(&client->dev, "waiting for result for command 0x%x\n", buf[2]);
+
+	if (wait_for_completion_timeout(&ts->command_done, WAIT_TIMEOUT) == 0) {
+		ret = -ETIME;
+		goto unlock;
+	}
+
+	ret = ts->command_result;
+
+unlock:
+	mutex_unlock(&ts->command_mutex);
+	return ret;
+}
+
+static int zforce_command_wait(struct zforce_ts *ts, u8 cmd)
+{
+	struct i2c_client *client = ts->client;
+	char buf[3];
+	int ret;
+
+	dev_dbg(&client->dev, "%s: 0x%x\n", __func__, cmd);
+
+	buf[0] = FRAME_START;
+	buf[1] = 1; /* data size, command only */
+	buf[2] = cmd;
+
+	ret = zforce_send_wait(ts, &buf[0], ARRAY_SIZE(buf));
+	if (ret < 0) {
+		dev_err(&client->dev, "i2c send data request error: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int zforce_resolution(struct zforce_ts *ts, u16 x, u16 y)
+{
+	struct i2c_client *client = ts->client;
+	char buf[7] = { FRAME_START, 5, COMMAND_RESOLUTION,
+			(x & 0xff), ((x >> 8) & 0xff),
+			(y & 0xff), ((y >> 8) & 0xff) };
+
+	dev_dbg(&client->dev, "set resolution to (%d,%d)\n", x, y);
+
+	return zforce_send_wait(ts, &buf[0], ARRAY_SIZE(buf));
+}
+
+static int zforce_scan_frequency(struct zforce_ts *ts, u16 idle, u16 finger,
+				 u16 stylus)
+{
+	struct i2c_client *client = ts->client;
+	char buf[9] = { FRAME_START, 7, COMMAND_SCANFREQ,
+			(idle & 0xff), ((idle >> 8) & 0xff),
+			(finger & 0xff), ((finger >> 8) & 0xff),
+			(stylus & 0xff), ((stylus >> 8) & 0xff) };
+
+	dev_dbg(&client->dev, "set scan frequency to (idle: %d, finger: %d, stylus: %d)\n",
+		idle, finger, stylus);
+
+	return zforce_send_wait(ts, &buf[0], ARRAY_SIZE(buf));
+}
+
+static int zforce_setconfig(struct zforce_ts *ts, char b1)
+{
+	struct i2c_client *client = ts->client;
+	char buf[7] = { FRAME_START, 5, COMMAND_SETCONFIG,
+			b1, 0, 0, 0 };
+
+	dev_dbg(&client->dev, "set config to (%d)\n", b1);
+
+	return zforce_send_wait(ts, &buf[0], ARRAY_SIZE(buf));
+}
+
+static int zforce_start(struct zforce_ts *ts)
+{
+	struct i2c_client *client = ts->client;
+	const struct zforce_ts_platdata *pdata = dev_get_platdata(&client->dev);
+	int ret;
+
+	dev_dbg(&client->dev, "starting device\n");
+
+	ret = zforce_command_wait(ts, COMMAND_INITIALIZE);
+	if (ret) {
+		dev_err(&client->dev, "Unable to initialize, %d\n", ret);
+		return ret;
+	}
+
+	ret = zforce_resolution(ts, pdata->x_max, pdata->y_max);
+	if (ret) {
+		dev_err(&client->dev, "Unable to set resolution, %d\n", ret);
+		goto error;
+	}
+
+	ret = zforce_scan_frequency(ts, 10, 50, 50);
+	if (ret) {
+		dev_err(&client->dev, "Unable to set scan frequency, %d\n",
+			ret);
+		goto error;
+	}
+
+	if (zforce_setconfig(ts, SETCONFIG_DUALTOUCH)) {
+		dev_err(&client->dev, "Unable to set config\n");
+		goto error;
+	}
+
+	/* start sending touch events */
+	ret = zforce_command(ts, COMMAND_DATAREQUEST);
+	if (ret) {
+		dev_err(&client->dev, "Unable to request data\n");
+		goto error;
+	}
+
+	/*
+	 * Per NN, initial cal. take max. of 200msec.
+	 * Allow time to complete this calibration
+	 */
+	msleep(200);
+
+	return 0;
+
+error:
+	zforce_command_wait(ts, COMMAND_DEACTIVATE);
+	return ret;
+}
+
+static int zforce_stop(struct zforce_ts *ts)
+{
+	struct i2c_client *client = ts->client;
+	int ret;
+
+	dev_dbg(&client->dev, "stopping device\n");
+
+	/* Deactivates touch sensing and puts the device into sleep. */
+	ret = zforce_command_wait(ts, COMMAND_DEACTIVATE);
+	if (ret != 0) {
+		dev_err(&client->dev, "could not deactivate device, %d\n",
+			ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int zforce_touch_event(struct zforce_ts *ts, u8 *payload)
+{
+	struct i2c_client *client = ts->client;
+	const struct zforce_ts_platdata *pdata = dev_get_platdata(&client->dev);
+	struct zforce_point point;
+	int count, i, num = 0;
+
+	count = payload[0];
+	if (count > ZFORCE_REPORT_POINTS) {
+		dev_warn(&client->dev, "to many coordinates %d, expected max %d\n",
+			 count, ZFORCE_REPORT_POINTS);
+		count = ZFORCE_REPORT_POINTS;
+	}
+
+	for (i = 0; i < count; i++) {
+		point.coord_x =
+			payload[9 * i + 2] << 8 | payload[9 * i + 1];
+		point.coord_y =
+			payload[9 * i + 4] << 8 | payload[9 * i + 3];
+
+		if (point.coord_x > pdata->x_max ||
+		    point.coord_y > pdata->y_max) {
+			dev_warn(&client->dev, "coordinates (%d,%d) invalid\n",
+				point.coord_x, point.coord_y);
+			point.coord_x = point.coord_y = 0;
+		}
+
+		point.state = payload[9 * i + 5] & 0x03;
+		point.id = (payload[9 * i + 5] & 0xfc) >> 2;
+
+		/* determine touch major, minor and orientation */
+		point.area_major = max(payload[9 * i + 6],
+					  payload[9 * i + 7]);
+		point.area_minor = min(payload[9 * i + 6],
+					  payload[9 * i + 7]);
+		point.orientation = payload[9 * i + 6] > payload[9 * i + 7];
+
+		point.pressure = payload[9 * i + 8];
+		point.prblty = payload[9 * i + 9];
+
+		dev_dbg(&client->dev,
+			"point %d/%d: state %d, id %d, pressure %d, prblty %d, x %d, y %d, amajor %d, aminor %d, ori %d\n",
+			i, count, point.state, point.id,
+			point.pressure, point.prblty,
+			point.coord_x, point.coord_y,
+			point.area_major, point.area_minor,
+			point.orientation);
+
+		/* the zforce id starts with "1", so needs to be decreased */
+		input_mt_slot(ts->input, point.id - 1);
+
+		input_mt_report_slot_state(ts->input, MT_TOOL_FINGER,
+						point.state != STATE_UP);
+
+		if (point.state != STATE_UP) {
+			input_report_abs(ts->input, ABS_MT_POSITION_X,
+					 point.coord_x);
+			input_report_abs(ts->input, ABS_MT_POSITION_Y,
+					 point.coord_y);
+			input_report_abs(ts->input, ABS_MT_TOUCH_MAJOR,
+					 point.area_major);
+			input_report_abs(ts->input, ABS_MT_TOUCH_MINOR,
+					 point.area_minor);
+			input_report_abs(ts->input, ABS_MT_ORIENTATION,
+					 point.orientation);
+			num++;
+		}
+	}
+
+	input_mt_sync_frame(ts->input);
+
+	input_mt_report_finger_count(ts->input, num);
+
+	input_sync(ts->input);
+
+	return 0;
+}
+
+static int zforce_read_packet(struct zforce_ts *ts, u8 *buf)
+{
+	struct i2c_client *client = ts->client;
+	int ret;
+
+	mutex_lock(&ts->access_mutex);
+
+	/* read 2 byte message header */
+	ret = i2c_master_recv(client, buf, 2);
+	if (ret < 0) {
+		dev_err(&client->dev, "error reading header: %d\n", ret);
+		goto unlock;
+	}
+
+	if (buf[PAYLOAD_HEADER] != FRAME_START) {
+		dev_err(&client->dev, "invalid frame start: %d\n", buf[0]);
+		ret = -EIO;
+		goto unlock;
+	}
+
+	if (buf[PAYLOAD_LENGTH] <= 0 || buf[PAYLOAD_LENGTH] > 255) {
+		dev_err(&client->dev, "invalid payload length: %d\n",
+			buf[PAYLOAD_LENGTH]);
+		ret = -EIO;
+		goto unlock;
+	}
+
+	/* read the message */
+	ret = i2c_master_recv(client, &buf[PAYLOAD_BODY], buf[PAYLOAD_LENGTH]);
+	if (ret < 0) {
+		dev_err(&client->dev, "error reading payload: %d\n", ret);
+		goto unlock;
+	}
+
+	dev_dbg(&client->dev, "read %d bytes for response command 0x%x\n",
+		buf[PAYLOAD_LENGTH], buf[PAYLOAD_BODY]);
+
+unlock:
+	mutex_unlock(&ts->access_mutex);
+	return ret;
+}
+
+static void zforce_complete(struct zforce_ts *ts, int cmd, int result)
+{
+	struct i2c_client *client = ts->client;
+
+	if (ts->command_waiting == cmd) {
+		dev_dbg(&client->dev, "completing command 0x%x\n", cmd);
+		ts->command_result = result;
+		complete(&ts->command_done);
+	} else {
+		dev_dbg(&client->dev, "command %d not for us\n", cmd);
+	}
+}
+
+static irqreturn_t zforce_interrupt(int irq, void *dev_id)
+{
+	struct zforce_ts *ts = dev_id;
+	struct i2c_client *client = ts->client;
+	const struct zforce_ts_platdata *pdata = dev_get_platdata(&client->dev);
+	int ret;
+	u8 payload_buffer[512];
+	u8 *payload;
+
+	/*
+	 * When suspended, emit a wakeup signal if necessary and return.
+	 * Due to the level-interrupt we will get re-triggered later.
+	 */
+	if (ts->suspended) {
+		if (device_may_wakeup(&client->dev))
+			pm_wakeup_event(&client->dev, 500);
+		msleep(20);
+		return IRQ_HANDLED;
+	}
+
+	dev_dbg(&client->dev, "handling interrupt\n");
+
+	/* Don't emit wakeup events from commands run by zforce_suspend */
+	if (!ts->suspending && device_may_wakeup(&client->dev))
+		pm_stay_awake(&client->dev);
+
+	while (!gpio_get_value(pdata->gpio_int)) {
+		ret = zforce_read_packet(ts, payload_buffer);
+		if (ret < 0) {
+			dev_err(&client->dev, "could not read packet, ret: %d\n",
+				ret);
+			break;
+		}
+
+		payload =  &payload_buffer[PAYLOAD_BODY];
+
+		switch (payload[RESPONSE_ID]) {
+		case NOTIFICATION_TOUCH:
+			/*
+			 * Always report touch-events received while
+			 * suspending, when being a wakeup source
+			 */
+			if (ts->suspending && device_may_wakeup(&client->dev))
+				pm_wakeup_event(&client->dev, 500);
+			zforce_touch_event(ts, &payload[RESPONSE_DATA]);
+			break;
+
+		case NOTIFICATION_BOOTCOMPLETE:
+			ts->boot_complete = payload[RESPONSE_DATA];
+			zforce_complete(ts, payload[RESPONSE_ID], 0);
+			break;
+
+		case RESPONSE_INITIALIZE:
+		case RESPONSE_DEACTIVATE:
+		case RESPONSE_SETCONFIG:
+		case RESPONSE_RESOLUTION:
+		case RESPONSE_SCANFREQ:
+			zforce_complete(ts, payload[RESPONSE_ID],
+					payload[RESPONSE_DATA]);
+			break;
+
+		case RESPONSE_STATUS:
+			/*
+			 * Version Payload Results
+			 * [2:major] [2:minor] [2:build] [2:rev]
+			 */
+			ts->version_major = (payload[RESPONSE_DATA + 1] << 8) |
+						payload[RESPONSE_DATA];
+			ts->version_minor = (payload[RESPONSE_DATA + 3] << 8) |
+						payload[RESPONSE_DATA + 2];
+			ts->version_build = (payload[RESPONSE_DATA + 5] << 8) |
+						payload[RESPONSE_DATA + 4];
+			ts->version_rev   = (payload[RESPONSE_DATA + 7] << 8) |
+						payload[RESPONSE_DATA + 6];
+			dev_dbg(&ts->client->dev, "Firmware Version %04x:%04x %04x:%04x\n",
+				ts->version_major, ts->version_minor,
+				ts->version_build, ts->version_rev);
+
+			zforce_complete(ts, payload[RESPONSE_ID], 0);
+			break;
+
+		case NOTIFICATION_INVALID_COMMAND:
+			dev_err(&ts->client->dev, "invalid command: 0x%x\n",
+				payload[RESPONSE_DATA]);
+			break;
+
+		default:
+			dev_err(&ts->client->dev, "unrecognized response id: 0x%x\n",
+				payload[RESPONSE_ID]);
+			break;
+		}
+	}
+
+	if (!ts->suspending && device_may_wakeup(&client->dev))
+		pm_relax(&client->dev);
+
+	dev_dbg(&client->dev, "finished interrupt\n");
+
+	return IRQ_HANDLED;
+}
+
+static int zforce_input_open(struct input_dev *dev)
+{
+	struct zforce_ts *ts = input_get_drvdata(dev);
+	int ret;
+
+	ret = zforce_start(ts);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static void zforce_input_close(struct input_dev *dev)
+{
+	struct zforce_ts *ts = input_get_drvdata(dev);
+	struct i2c_client *client = ts->client;
+	int ret;
+
+	ret = zforce_stop(ts);
+	if (ret)
+		dev_warn(&client->dev, "stopping zforce failed\n");
+
+	return;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int zforce_suspend(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct zforce_ts *ts = i2c_get_clientdata(client);
+	struct input_dev *input = ts->input;
+	int ret = 0;
+
+	mutex_lock(&input->mutex);
+	ts->suspending = true;
+
+	/*
+	 * When configured as a wakeup source device should always wake
+	 * the system, therefore start device if necessary.
+	 */
+	if (device_may_wakeup(&client->dev)) {
+		dev_dbg(&client->dev, "suspend while being a wakeup source\n");
+
+		/* Need to start device, if not open, to be a wakeup source. */
+		if (!input->users) {
+			ret = zforce_start(ts);
+			if (ret)
+				goto unlock;
+		}
+
+		enable_irq_wake(client->irq);
+	} else if (input->users) {
+		dev_dbg(&client->dev, "suspend without being a wakeup source\n");
+
+		ret = zforce_stop(ts);
+		if (ret)
+			goto unlock;
+
+		disable_irq(client->irq);
+	}
+
+	ts->suspended = true;
+
+unlock:
+	ts->suspending = false;
+	mutex_unlock(&input->mutex);
+
+	return ret;
+}
+
+static int zforce_resume(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct zforce_ts *ts = i2c_get_clientdata(client);
+	struct input_dev *input = ts->input;
+	int ret = 0;
+
+	mutex_lock(&input->mutex);
+
+	ts->suspended = false;
+
+	if (device_may_wakeup(&client->dev)) {
+		dev_dbg(&client->dev, "resume from being a wakeup source\n");
+
+		disable_irq_wake(client->irq);
+
+		/* need to stop device if it was not open on suspend */
+		if (!input->users) {
+			ret = zforce_stop(ts);
+			if (ret)
+				goto unlock;
+		}
+	} else if (input->users) {
+		dev_dbg(&client->dev, "resume without being a wakeup source\n");
+
+		enable_irq(client->irq);
+
+		ret = zforce_start(ts);
+		if (ret < 0)
+			goto unlock;
+	}
+
+unlock:
+	mutex_unlock(&input->mutex);
+
+	return ret;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(zforce_pm_ops, zforce_suspend, zforce_resume);
+
+static void zforce_reset(void *data)
+{
+	struct zforce_ts *ts = data;
+
+	gpio_set_value(ts->pdata->gpio_rst, 0);
+}
+
+static int zforce_probe(struct i2c_client *client,
+			const struct i2c_device_id *id)
+{
+	const struct zforce_ts_platdata *pdata = dev_get_platdata(&client->dev);
+	struct zforce_ts *ts;
+	struct input_dev *input_dev;
+	int ret;
+
+	if (!pdata)
+		return -EINVAL;
+
+	ts = devm_kzalloc(&client->dev, sizeof(struct zforce_ts), GFP_KERNEL);
+	if (!ts)
+		return -ENOMEM;
+
+	ret = devm_gpio_request_one(&client->dev, pdata->gpio_int, GPIOF_IN,
+				    "zforce_ts_int");
+	if (ret) {
+		dev_err(&client->dev, "request of gpio %d failed, %d\n",
+			pdata->gpio_int, ret);
+		return ret;
+	}
+
+	ret = devm_gpio_request_one(&client->dev, pdata->gpio_rst,
+				    GPIOF_OUT_INIT_LOW, "zforce_ts_rst");
+	if (ret) {
+		dev_err(&client->dev, "request of gpio %d failed, %d\n",
+			pdata->gpio_rst, ret);
+		return ret;
+	}
+
+	ret = devm_add_action(&client->dev, zforce_reset, ts);
+	if (ret) {
+		dev_err(&client->dev, "failed to register reset action, %d\n",
+			ret);
+		return ret;
+	}
+
+	snprintf(ts->phys, sizeof(ts->phys),
+		 "%s/input0", dev_name(&client->dev));
+
+	input_dev = devm_input_allocate_device(&client->dev);
+	if (!input_dev) {
+		dev_err(&client->dev, "could not allocate input device\n");
+		return -ENOMEM;
+	}
+
+	mutex_init(&ts->access_mutex);
+	mutex_init(&ts->command_mutex);
+
+	ts->pdata = pdata;
+	ts->client = client;
+	ts->input = input_dev;
+
+	input_dev->name = "Neonode zForce touchscreen";
+	input_dev->phys = ts->phys;
+	input_dev->id.bustype = BUS_I2C;
+
+	input_dev->open = zforce_input_open;
+	input_dev->close = zforce_input_close;
+
+	__set_bit(EV_KEY, input_dev->evbit);
+	__set_bit(EV_SYN, input_dev->evbit);
+	__set_bit(EV_ABS, input_dev->evbit);
+
+	/* For multi touch */
+	input_set_abs_params(input_dev, ABS_MT_POSITION_X, 0,
+			     pdata->x_max, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_POSITION_Y, 0,
+			     pdata->y_max, 0, 0);
+
+	input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0,
+			     ZFORCE_MAX_AREA, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_TOUCH_MINOR, 0,
+			     ZFORCE_MAX_AREA, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_ORIENTATION, 0, 1, 0, 0);
+	input_mt_init_slots(input_dev, ZFORCE_REPORT_POINTS, INPUT_MT_DIRECT);
+
+	input_set_drvdata(ts->input, ts);
+
+	init_completion(&ts->command_done);
+
+	/*
+	 * The zforce pulls the interrupt low when it has data ready.
+	 * After it is triggered the isr thread runs until all the available
+	 * packets have been read and the interrupt is high again.
+	 * Therefore we can trigger the interrupt anytime it is low and do
+	 * not need to limit it to the interrupt edge.
+	 */
+	ret = devm_request_threaded_irq(&client->dev, client->irq, NULL,
+					zforce_interrupt,
+					IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+					input_dev->name, ts);
+	if (ret) {
+		dev_err(&client->dev, "irq %d request failed\n", client->irq);
+		return ret;
+	}
+
+	i2c_set_clientdata(client, ts);
+
+	/* let the controller boot */
+	gpio_set_value(pdata->gpio_rst, 1);
+
+	ts->command_waiting = NOTIFICATION_BOOTCOMPLETE;
+	if (wait_for_completion_timeout(&ts->command_done, WAIT_TIMEOUT) == 0)
+		dev_warn(&client->dev, "bootcomplete timed out\n");
+
+	/* need to start device to get version information */
+	ret = zforce_command_wait(ts, COMMAND_INITIALIZE);
+	if (ret) {
+		dev_err(&client->dev, "unable to initialize, %d\n", ret);
+		return ret;
+	}
+
+	/* this gets the firmware version among other informations */
+	ret = zforce_command_wait(ts, COMMAND_STATUS);
+	if (ret < 0) {
+		dev_err(&client->dev, "couldn't get status, %d\n", ret);
+		zforce_stop(ts);
+		return ret;
+	}
+
+	/* stop device and put it into sleep until it is opened */
+	ret = zforce_stop(ts);
+	if (ret < 0)
+		return ret;
+
+	device_set_wakeup_capable(&client->dev, true);
+
+	ret = input_register_device(input_dev);
+	if (ret) {
+		dev_err(&client->dev, "could not register input device, %d\n",
+			ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static struct i2c_device_id zforce_idtable[] = {
+	{ "zforce-ts", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, zforce_idtable);
+
+static struct i2c_driver zforce_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= "zforce-ts",
+		.pm	= &zforce_pm_ops,
+	},
+	.probe		= zforce_probe,
+	.id_table	= zforce_idtable,
+};
+
+module_i2c_driver(zforce_driver);
+
+MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>");
+MODULE_DESCRIPTION("zForce TouchScreen Driver");
+MODULE_LICENSE("GPL");
diff --git a/include/linux/platform_data/zforce_ts.h b/include/linux/platform_data/zforce_ts.h
new file mode 100644
index 000000000000..0472ab2f6ede
--- /dev/null
+++ b/include/linux/platform_data/zforce_ts.h
@@ -0,0 +1,26 @@
+/* drivers/input/touchscreen/zforce.c
+ *
+ * Copyright (C) 2012-2013 MundoReader S.L.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef _LINUX_INPUT_ZFORCE_TS_H
+#define _LINUX_INPUT_ZFORCE_TS_H
+
+struct zforce_ts_platdata {
+	int gpio_int;
+	int gpio_rst;
+
+	unsigned int x_max;
+	unsigned int y_max;
+};
+
+#endif /* _LINUX_INPUT_ZFORCE_TS_H */
-- 
cgit 


From 2746f7a17062d3526116f7ae7f91d88b19c2464e Mon Sep 17 00:00:00 2001
From: "Darrick J. Wong" <darrick.wong@oracle.com>
Date: Thu, 31 Oct 2013 11:46:31 -0400
Subject: ext4: don't count free clusters from a corrupt block group

A bg that's been flagged "corrupt" by definition has no free blocks,
so that the allocator won't be tempted to use the damaged bg.
Therefore, we shouldn't count the clusters in the damaged group when
calculating free counts.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>
---
 fs/ext4/balloc.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index dc5d572ebd6a..6ea7b1436bbc 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -640,6 +640,7 @@ ext4_fsblk_t ext4_count_free_clusters(struct super_block *sb)
 	struct ext4_group_desc *gdp;
 	ext4_group_t i;
 	ext4_group_t ngroups = ext4_get_groups_count(sb);
+	struct ext4_group_info *grp;
 #ifdef EXT4FS_DEBUG
 	struct ext4_super_block *es;
 	ext4_fsblk_t bitmap_count;
@@ -655,7 +656,11 @@ ext4_fsblk_t ext4_count_free_clusters(struct super_block *sb)
 		gdp = ext4_get_group_desc(sb, i, NULL);
 		if (!gdp)
 			continue;
-		desc_count += ext4_free_group_clusters(sb, gdp);
+		grp = NULL;
+		if (EXT4_SB(sb)->s_group_info)
+			grp = ext4_get_group_info(sb, i);
+		if (!grp || !EXT4_MB_GRP_BBITMAP_CORRUPT(grp))
+			desc_count += ext4_free_group_clusters(sb, gdp);
 		brelse(bitmap_bh);
 		bitmap_bh = ext4_read_block_bitmap(sb, i);
 		if (bitmap_bh == NULL)
@@ -679,7 +684,11 @@ ext4_fsblk_t ext4_count_free_clusters(struct super_block *sb)
 		gdp = ext4_get_group_desc(sb, i, NULL);
 		if (!gdp)
 			continue;
-		desc_count += ext4_free_group_clusters(sb, gdp);
+		grp = NULL;
+		if (EXT4_SB(sb)->s_group_info)
+			grp = ext4_get_group_info(sb, i);
+		if (!grp || !EXT4_MB_GRP_BBITMAP_CORRUPT(grp))
+			desc_count += ext4_free_group_clusters(sb, gdp);
 	}
 
 	return desc_count;
-- 
cgit 


From be39f1968e33ca641af120a2d659421ad2225dea Mon Sep 17 00:00:00 2001
From: Dominik Dingel <dingel@linux.vnet.ibm.com>
Date: Thu, 31 Oct 2013 10:01:16 +0100
Subject: s390/mm: page_table_realloc returns failure

There is a possible race between setting has_pgste and reallocation of the
page_table, change the order to fix this.
Also page_table_alloc_pgste can fail, in that case we need to backpropagte this
as -ENOMEM to the caller of page_table_realloc.

Based on a patch by Christian Borntraeger <borntraeger@de.ibm.com>.

Reviewed-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/mm/pgtable.c | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 94f37a9fb1e5..a9be08899b0c 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -1087,10 +1087,9 @@ again:
 			continue;
 		/* Allocate new page table with pgstes */
 		new = page_table_alloc_pgste(mm, addr);
-		if (!new) {
-			mm->context.has_pgste = 0;
-			continue;
-		}
+		if (!new)
+			return -ENOMEM;
+
 		spin_lock(&mm->page_table_lock);
 		if (likely((unsigned long *) pmd_deref(*pmd) == table)) {
 			/* Nuke pmd entry pointing to the "short" page table */
@@ -1128,13 +1127,15 @@ static unsigned long page_table_realloc_pud(struct mmu_gather *tlb,
 		if (pud_none_or_clear_bad(pud))
 			continue;
 		next = page_table_realloc_pmd(tlb, mm, pud, addr, next);
+		if (unlikely(IS_ERR_VALUE(next)))
+			return next;
 	} while (pud++, addr = next, addr != end);
 
 	return addr;
 }
 
-static void page_table_realloc(struct mmu_gather *tlb, struct mm_struct *mm,
-			       unsigned long addr, unsigned long end)
+static unsigned long page_table_realloc(struct mmu_gather *tlb, struct mm_struct *mm,
+					unsigned long addr, unsigned long end)
 {
 	unsigned long next;
 	pgd_t *pgd;
@@ -1145,7 +1146,11 @@ static void page_table_realloc(struct mmu_gather *tlb, struct mm_struct *mm,
 		if (pgd_none_or_clear_bad(pgd))
 			continue;
 		next = page_table_realloc_pud(tlb, mm, pgd, addr, next);
+		if (unlikely(IS_ERR_VALUE(next)))
+			return next;
 	} while (pgd++, addr = next, addr != end);
+
+	return 0;
 }
 
 /*
@@ -1165,9 +1170,9 @@ int s390_enable_sie(void)
 	/* split thp mappings and disable thp for future mappings */
 	thp_split_mm(mm);
 	/* Reallocate the page tables with pgstes */
-	mm->context.has_pgste = 1;
 	tlb_gather_mmu(&tlb, mm, 0, TASK_SIZE);
-	page_table_realloc(&tlb, mm, 0, TASK_SIZE);
+	if (!page_table_realloc(&tlb, mm, 0, TASK_SIZE))
+		mm->context.has_pgste = 1;
 	tlb_finish_mmu(&tlb, 0, TASK_SIZE);
 	up_write(&mm->mmap_sem);
 	return mm->context.has_pgste ? 0 : -ENOMEM;
-- 
cgit 


From 7d49f0bac41ee9b012af1efe2f725d91a87a8fe9 Mon Sep 17 00:00:00 2001
From: Greg KH <gregkh@linuxfoundation.org>
Date: Wed, 30 Oct 2013 11:07:31 -0700
Subject: USB: Maintainers change for usb serial drivers

Johan has been conned^Wgracious in accepting the maintainership of the
USB serial drivers, especially as he's been doing all of the real work
for the past few years.

At the same time, remove a bunch of old entries for USB serial drivers
that don't make sense anymore, given that the developers are no longer
around, and individual driver maintainerships for tiny things like this
is pretty pointless.

Acked-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 MAINTAINERS | 53 +++--------------------------------------------------
 1 file changed, 3 insertions(+), 50 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 6d3858de5906..c75199cdd052 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8845,61 +8845,14 @@ W:	http://pegasus2.sourceforge.net/
 S:	Maintained
 F:	drivers/net/usb/rtl8150.c
 
-USB SERIAL BELKIN F5U103 DRIVER
-M:	William Greathouse <wgreathouse@smva.com>
+USB SERIAL SUBSYSTEM
+M:	Johan Hovold <jhovold@gmail.com>
 L:	linux-usb@vger.kernel.org
 S:	Maintained
-F:	drivers/usb/serial/belkin_sa.*
-
-USB SERIAL CYPRESS M8 DRIVER
-M:	Lonnie Mendez <dignome@gmail.com>
-L:	linux-usb@vger.kernel.org
-S:	Maintained
-W:	http://geocities.com/i0xox0i
-W:	http://firstlight.net/cvs
-F:	drivers/usb/serial/cypress_m8.*
-
-USB SERIAL CYBERJACK DRIVER
-M:	Matthias Bruestle and Harald Welte <support@reiner-sct.com>
-W:	http://www.reiner-sct.de/support/treiber_cyberjack.php
-S:	Maintained
-F:	drivers/usb/serial/cyberjack.c
-
-USB SERIAL DIGI ACCELEPORT DRIVER
-M:	Peter Berger <pberger@brimson.com>
-M:	Al Borchers <alborchers@steinerpoint.com>
-L:	linux-usb@vger.kernel.org
-S:	Maintained
-F:	drivers/usb/serial/digi_acceleport.c
-
-USB SERIAL DRIVER
-M:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-L:	linux-usb@vger.kernel.org
-S:	Supported
 F:	Documentation/usb/usb-serial.txt
-F:	drivers/usb/serial/generic.c
-F:	drivers/usb/serial/usb-serial.c
+F:	drivers/usb/serial/
 F:	include/linux/usb/serial.h
 
-USB SERIAL EMPEG EMPEG-CAR MARK I/II DRIVER
-M:	Gary Brubaker <xavyer@ix.netcom.com>
-L:	linux-usb@vger.kernel.org
-S:	Maintained
-F:	drivers/usb/serial/empeg.c
-
-USB SERIAL KEYSPAN DRIVER
-M:	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-L:	linux-usb@vger.kernel.org
-S:	Maintained
-F:	drivers/usb/serial/*keyspan*
-
-USB SERIAL WHITEHEAT DRIVER
-M:	Support Department <support@connecttech.com>
-L:	linux-usb@vger.kernel.org
-W:	http://www.connecttech.com
-S:	Supported
-F:	drivers/usb/serial/whiteheat*
-
 USB SMSC75XX ETHERNET DRIVER
 M:	Steve Glendinning <steve.glendinning@shawell.net>
 L:	netdev@vger.kernel.org
-- 
cgit 


From 80d8611dd07603736d14e4a942546bdc84dd5477 Mon Sep 17 00:00:00 2001
From: Philippe Proulx <philippe.proulx@savoirfairelinux.com>
Date: Thu, 31 Oct 2013 09:39:58 -0400
Subject: serial: omap: fix missing comma

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>,
Signed-off-by: Philippe Proulx <philippe.proulx@savoirfairelinux.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/omap-serial.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 97c07f68cca0..fa511ebab67c 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -1723,7 +1723,7 @@ static int serial_omap_probe(struct platform_device *pdev)
 	if (!up->port.uartclk) {
 		up->port.uartclk = DEFAULT_CLK_SPEED;
 		dev_warn(&pdev->dev,
-			 "No clock speed specified: using default: %d\n"
+			 "No clock speed specified: using default: %d\n",
 			 DEFAULT_CLK_SPEED);
 	}
 
-- 
cgit 


From 264666e62848c19ba9252c80e895ffec9ad1d391 Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Thu, 31 Oct 2013 16:37:26 +0000
Subject: arm64: Slightly improve the warning on CPU0 enable-method

Commit e8765b265a69 (arm64: read enable-method for CPU0) introduced
checks for the enable method on CPU0 (to be later used with CPU
suspend). However, if the kernel is compiled for UP and a DT file is
used with a method like 'spin-table', Linux complains about 'invalid
enable method'. This patch turns it into an 'unsupported enable method'
warning.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kernel/cpu_ops.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kernel/cpu_ops.c b/arch/arm64/kernel/cpu_ops.c
index e2ba274612cf..d62d12fb36c8 100644
--- a/arch/arm64/kernel/cpu_ops.c
+++ b/arch/arm64/kernel/cpu_ops.c
@@ -68,8 +68,8 @@ int __init cpu_read_ops(struct device_node *dn, int cpu)
 
 	cpu_ops[cpu] = cpu_get_ops(enable_method);
 	if (!cpu_ops[cpu]) {
-		pr_err("%s: invalid enable-method property: %s\n",
-		       dn->full_name, enable_method);
+		pr_warn("%s: unsupported enable-method property: %s\n",
+			dn->full_name, enable_method);
 		return -EOPNOTSUPP;
 	}
 
-- 
cgit 


From 1acd1c301f4faae80f4d2c7bbd9a4553b131c0e3 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@redhat.com>
Date: Thu, 31 Oct 2013 13:03:04 -0400
Subject: nfs: fix inverted test for delegation in nfs4_reclaim_open_state

commit 6686390bab6a0e0 (NFS: remove incorrect "Lock reclaim failed!"
warning.) added a test for a delegation before checking to see if any
reclaimed locks failed. The test however is backward and is only doing
that check when a delegation is held instead of when one isn't.

Cc: NeilBrown <neilb@suse.de>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Fixes: 6686390bab6a: NFS: remove incorrect "Lock reclaim failed!" warning.
Cc: stable@vger.kernel.org # 3.12
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4state.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 452f4c8dadea..c8e729deb4f7 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1476,7 +1476,7 @@ restart:
 		if (status >= 0) {
 			status = nfs4_reclaim_locks(state, ops);
 			if (status >= 0) {
-				if (test_bit(NFS_DELEGATED_STATE, &state->flags) != 0) {
+				if (!test_bit(NFS_DELEGATED_STATE, &state->flags)) {
 					spin_lock(&state->state_lock);
 					list_for_each_entry(lock, &state->lock_states, ls_locks) {
 						if (!test_bit(NFS_LOCK_INITIALIZED, &lock->ls_flags))
-- 
cgit 


From d394c7bb660b6d595ff17a042f2b885e84dbf603 Mon Sep 17 00:00:00 2001
From: Markus Mayer <markus.mayer@linaro.org>
Date: Tue, 10 Sep 2013 11:07:03 -0700
Subject: ARM: bcm281xx: Add device node for the GPIO controller

Add the GPIO controller device node for the Broadcom bcm281xx family of
mobile SoCs.

Signed-off-by: Markus Mayer <markus.mayer@linaro.org>
Reviewed-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Matt Porter <matt.porter@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Christian Daudt <bcm@fixthebug.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/boot/dts/bcm11351.dtsi | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/boot/dts/bcm11351.dtsi b/arch/arm/boot/dts/bcm11351.dtsi
index 05a5aabe3b2c..77af39668090 100644
--- a/arch/arm/boot/dts/bcm11351.dtsi
+++ b/arch/arm/boot/dts/bcm11351.dtsi
@@ -68,6 +68,22 @@
 		clock-frequency = <32768>;
 	};
 
+	gpio: gpio@35003000 {
+		compatible = "brcm,bcm11351-gpio", "brcm,kona-gpio";
+		reg = <0x35003000 0x800>;
+		interrupts =
+		       <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH
+			GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH
+			GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH
+			GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH
+			GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH
+			GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>;
+		#gpio-cells = <2>;
+		#interrupt-cells = <2>;
+		gpio-controller;
+		interrupt-controller;
+	};
+
 	sdio1: sdio@3f180000 {
 		compatible = "brcm,kona-sdhci";
 		reg = <0x3f180000 0x10000>;
-- 
cgit 


From a4412050149fb314420ecec8f9b9f8b3c9515ecf Mon Sep 17 00:00:00 2001
From: Christian Daudt <bcm@fixthebug.org>
Date: Mon, 23 Sep 2013 10:20:36 -0700
Subject: ARM: dts: rename ARCH_BCM to ARCH_BCM_MOBILE (dt)

Currently ARCH_BCM has been used for Broadcom
Mobile V7 based SoCs. In order to allow other Broadcom
SoCs to also use mach-bcm directory and files, this patch
renames the original ARCH_BCM to ARCH_BCM_MOBILE, and
uses ARCH_BCM to define any Broadcom chip residing
in mach-bcm directory.

Signed-off-by: Christian Daudt <bcm@fixthebug.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/boot/dts/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index e95af3f5433b..b086aa28bd20 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -41,9 +41,9 @@ dtb-$(CONFIG_ARCH_AT91)	+= sama5d33ek.dtb
 dtb-$(CONFIG_ARCH_AT91)	+= sama5d34ek.dtb
 dtb-$(CONFIG_ARCH_AT91)	+= sama5d35ek.dtb
 
-dtb-$(CONFIG_ARCH_BCM2835) += bcm2835-rpi-b.dtb
-dtb-$(CONFIG_ARCH_BCM) += bcm11351-brt.dtb \
+dtb-$(CONFIG_ARCH_BCM_MOBILE) += bcm11351-brt.dtb \
 	bcm28155-ap.dtb
+dtb-$(CONFIG_ARCH_BCM2835) += bcm2835-rpi-b.dtb
 dtb-$(CONFIG_ARCH_DAVINCI) += da850-enbw-cmc.dtb \
 	da850-evm.dtb
 dtb-$(CONFIG_ARCH_DOVE) += dove-cm-a510.dtb \
-- 
cgit 


From 71469fe801082ca09f25d9b76c6bd8ab8ba02447 Mon Sep 17 00:00:00 2001
From: Markus Mayer <markus.mayer@linaro.org>
Date: Wed, 2 Oct 2013 11:00:16 -0700
Subject: ARM: dts: bcm281xx: Add card detect GPIO

Register GPIO 14 as card detect interrupt for the SD card slot.

Signed-off-by: Markus Mayer <markus.mayer@linaro.org>
Signed-off-by: Christian Daudt <bcm@fixthebug.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/boot/dts/bcm11351-brt.dts | 1 +
 arch/arm/boot/dts/bcm28155-ap.dts  | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/arm/boot/dts/bcm11351-brt.dts b/arch/arm/boot/dts/bcm11351-brt.dts
index 9d36eb4e3c41..23cd16d736bf 100644
--- a/arch/arm/boot/dts/bcm11351-brt.dts
+++ b/arch/arm/boot/dts/bcm11351-brt.dts
@@ -40,6 +40,7 @@
 
 	sdio4: sdio@3f1b0000 {
 		max-frequency = <48000000>;
+		cd-gpios = <&gpio 14 0>;
 		status = "okay";
 	};
 
diff --git a/arch/arm/boot/dts/bcm28155-ap.dts b/arch/arm/boot/dts/bcm28155-ap.dts
index 96ae67a2f0d3..08e47c285227 100644
--- a/arch/arm/boot/dts/bcm28155-ap.dts
+++ b/arch/arm/boot/dts/bcm28155-ap.dts
@@ -40,6 +40,7 @@
 
 	sdio4: sdio@3f1b0000 {
 		max-frequency = <48000000>;
+		cd-gpios = <&gpio 14 0>;
 		status = "okay";
 	};
 };
-- 
cgit 


From 84491c0fc5ecda6ae020179dd68b32d15dc14f36 Mon Sep 17 00:00:00 2001
From: Tim Kryger <tim.kryger@linaro.org>
Date: Mon, 23 Sep 2013 10:49:57 -0700
Subject: ARM: dts: bcm: Add missing UARTs for bcm11351 (bcm281xx)

This adds in three more UARTs that were not declared earlier.

Signed-off-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
Reviewed-by: Matt Porter <matt.porter@linaro.org>
Signed-off-by: Christian Daudt <bcm@fixthebug.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/boot/dts/bcm11351.dtsi | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm/boot/dts/bcm11351.dtsi b/arch/arm/boot/dts/bcm11351.dtsi
index 77af39668090..d2a89688716f 100644
--- a/arch/arm/boot/dts/bcm11351.dtsi
+++ b/arch/arm/boot/dts/bcm11351.dtsi
@@ -49,6 +49,36 @@
 		reg-io-width = <4>;
 	};
 
+	uart@3e001000 {
+		compatible = "brcm,bcm11351-dw-apb-uart", "snps,dw-apb-uart";
+		status = "disabled";
+		reg = <0x3e001000 0x1000>;
+		clock-frequency = <13000000>;
+		interrupts = <GIC_SPI 66 IRQ_TYPE_LEVEL_HIGH>;
+		reg-shift = <2>;
+		reg-io-width = <4>;
+	};
+
+	uart@3e002000 {
+		compatible = "brcm,bcm11351-dw-apb-uart", "snps,dw-apb-uart";
+		status = "disabled";
+		reg = <0x3e002000 0x1000>;
+		clock-frequency = <13000000>;
+		interrupts = <GIC_SPI 65 IRQ_TYPE_LEVEL_HIGH>;
+		reg-shift = <2>;
+		reg-io-width = <4>;
+	};
+
+	uart@3e003000 {
+		compatible = "brcm,bcm11351-dw-apb-uart", "snps,dw-apb-uart";
+		status = "disabled";
+		reg = <0x3e003000 0x1000>;
+		clock-frequency = <13000000>;
+		interrupts = <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
+		reg-shift = <2>;
+		reg-io-width = <4>;
+	};
+
 	L2: l2-cache {
 		compatible = "brcm,bcm11351-a2-pl310-cache";
 		reg = <0x3ff20000 0x1000>;
-- 
cgit 


From 9c0dae046caf01886608e24883d267ea60642a70 Mon Sep 17 00:00:00 2001
From: Matt Porter <matt.porter@linaro.org>
Date: Thu, 19 Sep 2013 13:18:26 -0400
Subject: ARM: dts: bcm11351: Use GIC/IRQ defines for sdio interrupts

Trivial patch to make use of GIC/IRQ defines on the bcm11351 sdio
interrupt properties.

Signed-off-by: Matt Porter <matt.porter@linaro.org>
Signed-off-by: Christian Daudt <bcm@fixthebug.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/boot/dts/bcm11351.dtsi | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/boot/dts/bcm11351.dtsi b/arch/arm/boot/dts/bcm11351.dtsi
index d2a89688716f..b0c0610d1395 100644
--- a/arch/arm/boot/dts/bcm11351.dtsi
+++ b/arch/arm/boot/dts/bcm11351.dtsi
@@ -117,28 +117,28 @@
 	sdio1: sdio@3f180000 {
 		compatible = "brcm,kona-sdhci";
 		reg = <0x3f180000 0x10000>;
-		interrupts = <0x0 77 0x4>;
+		interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
 		status = "disabled";
 	};
 
 	sdio2: sdio@3f190000 {
 		compatible = "brcm,kona-sdhci";
 		reg = <0x3f190000 0x10000>;
-		interrupts = <0x0 76 0x4>;
+		interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
 		status = "disabled";
 	};
 
 	sdio3: sdio@3f1a0000 {
 		compatible = "brcm,kona-sdhci";
 		reg = <0x3f1a0000 0x10000>;
-		interrupts = <0x0 74 0x4>;
+		interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
 		status = "disabled";
 	};
 
 	sdio4: sdio@3f1b0000 {
 		compatible = "brcm,kona-sdhci";
 		reg = <0x3f1b0000 0x10000>;
-		interrupts = <0x0 73 0x4>;
+		interrupts = <GIC_SPI 73 IRQ_TYPE_LEVEL_HIGH>;
 		status = "disabled";
 	};
 
-- 
cgit 


From f216f57ffe6eede3c8a763add65d331e688f8c56 Mon Sep 17 00:00:00 2001
From: Marek Vasut <marex@denx.de>
Date: Tue, 15 Oct 2013 18:06:38 +0200
Subject: PCI: imx6: Probe the PCIe in fs_initcall()

Probe the PCIe driver in fs_initcall() instead of module_init()
to assure that pci_assign_unassigned_resources() will be called
early.  This function is called in dw_pcie_host_init(), which is
in turn called from imx6_add_pcie_port(), which is called from
imx6_pcie_probe().  If this is not called early, we will hit
resource collisions since pcieport driver is then probed way too
late.

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Frank Li <lznuaa@gmail.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: Mohit KUMAR <Mohit.KUMAR@st.com>
Cc: Pratyush Anand <pratyush.anand@st.com>
Cc: Richard Zhu <r65037@freescale.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Sean Cross <xobs@kosagi.com>
Cc: Siva Reddy Kallam <siva.kallam@samsung.com>
Cc: Srikanth T Shivanand <ts.srikanth@samsung.com>
Cc: Tim Harvey <tharvey@gateworks.com>
Cc: Troy Kisky <troy.kisky@boundarydevices.com>
Cc: Yinghai Lu <yinghai@kernel.org>
---
 drivers/pci/host/pci-imx6.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pci/host/pci-imx6.c b/drivers/pci/host/pci-imx6.c
index 0a435b8f54c2..bd70af8f31ac 100644
--- a/drivers/pci/host/pci-imx6.c
+++ b/drivers/pci/host/pci-imx6.c
@@ -561,7 +561,7 @@ static int __init imx6_pcie_init(void)
 {
 	return platform_driver_probe(&imx6_pcie_driver, imx6_pcie_probe);
 }
-module_init(imx6_pcie_init);
+fs_initcall(imx6_pcie_init);
 
 MODULE_AUTHOR("Sean Cross <xobs@kosagi.com>");
 MODULE_DESCRIPTION("Freescale i.MX6 PCIe host controller driver");
-- 
cgit 


From f36afb3957353d2529cb2b00f78fdccd14fc5e9c Mon Sep 17 00:00:00 2001
From: Mikulas Patocka <mpatocka@redhat.com>
Date: Thu, 31 Oct 2013 13:55:45 -0400
Subject: dm: allocate buffer for messages with small number of arguments using
 GFP_NOIO

dm-mpath and dm-thin must process messages even if some device is
suspended, so we allocate argv buffer with GFP_NOIO. These messages have
a small fixed number of arguments.

On the other hand, dm-switch needs to process bulk data using messages
so excessive use of GFP_NOIO could cause trouble.

The patch also lowers the default number of arguments from 64 to 8, so
that there is smaller load on GFP_NOIO allocations.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@vger.kernel.org
Acked-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-table.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 8f8783533ac7..41d907b58f7e 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -545,14 +545,28 @@ static int adjoin(struct dm_table *table, struct dm_target *ti)
 
 /*
  * Used to dynamically allocate the arg array.
+ *
+ * We do first allocation with GFP_NOIO because dm-mpath and dm-thin must
+ * process messages even if some device is suspended. These messages have a
+ * small fixed number of arguments.
+ *
+ * On the other hand, dm-switch needs to process bulk data using messages and
+ * excessive use of GFP_NOIO could cause trouble.
  */
 static char **realloc_argv(unsigned *array_size, char **old_argv)
 {
 	char **argv;
 	unsigned new_size;
+	gfp_t gfp;
 
-	new_size = *array_size ? *array_size * 2 : 64;
-	argv = kmalloc(new_size * sizeof(*argv), GFP_KERNEL);
+	if (*array_size) {
+		new_size = *array_size * 2;
+		gfp = GFP_KERNEL;
+	} else {
+		new_size = 8;
+		gfp = GFP_NOIO;
+	}
+	argv = kmalloc(new_size * sizeof(*argv), gfp);
 	if (argv) {
 		memcpy(argv, old_argv, *array_size * sizeof(*argv));
 		*array_size = new_size;
-- 
cgit 


From a19685cb72bb6a80ac453e76b3ab3bb7770e1742 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 28 Oct 2013 14:21:46 +0100
Subject: ASoC: Use strlcpy() for copying in snd_soc_info_enum_double()

The provided texts aren't guaranteed to be in the fixed size.
Spotted by coverity CID 139318.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/soc-core.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 0860a7f11299..b38e0ee622df 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -2552,8 +2552,9 @@ int snd_soc_info_enum_double(struct snd_kcontrol *kcontrol,
 
 	if (uinfo->value.enumerated.item > e->max - 1)
 		uinfo->value.enumerated.item = e->max - 1;
-	strcpy(uinfo->value.enumerated.name,
-		e->texts[uinfo->value.enumerated.item]);
+	strlcpy(uinfo->value.enumerated.name,
+		e->texts[uinfo->value.enumerated.item],
+		sizeof(uinfo->value.enumerated.name));
 	return 0;
 }
 EXPORT_SYMBOL_GPL(snd_soc_info_enum_double);
-- 
cgit 


From c5914b0aaea6494aaa9e415cbd32f8b7eb604af0 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 30 Oct 2013 17:47:39 -0700
Subject: ASoC: pcm: Check for ops before deferencing them

Ensure that we always check that an ops structure is present before we
try to use it, improving the robustness of the system.

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/soc-pcm.c | 43 ++++++++++++++++++++++---------------------
 1 file changed, 22 insertions(+), 21 deletions(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index d4498723b375..d81b79251760 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -190,7 +190,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 	mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
 
 	/* startup the audio subsystem */
-	if (cpu_dai->driver->ops->startup) {
+	if (cpu_dai->driver->ops && cpu_dai->driver->ops->startup) {
 		ret = cpu_dai->driver->ops->startup(substream, cpu_dai);
 		if (ret < 0) {
 			dev_err(cpu_dai->dev, "ASoC: can't open interface"
@@ -208,7 +208,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 		}
 	}
 
-	if (codec_dai->driver->ops->startup) {
+	if (codec_dai->driver->ops && codec_dai->driver->ops->startup) {
 		ret = codec_dai->driver->ops->startup(substream, codec_dai);
 		if (ret < 0) {
 			dev_err(codec_dai->dev, "ASoC: can't open codec"
@@ -463,7 +463,7 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
 		}
 	}
 
-	if (codec_dai->driver->ops->prepare) {
+	if (codec_dai->driver->ops && codec_dai->driver->ops->prepare) {
 		ret = codec_dai->driver->ops->prepare(substream, codec_dai);
 		if (ret < 0) {
 			dev_err(codec_dai->dev, "ASoC: DAI prepare error: %d\n",
@@ -472,7 +472,7 @@ static int soc_pcm_prepare(struct snd_pcm_substream *substream)
 		}
 	}
 
-	if (cpu_dai->driver->ops->prepare) {
+	if (cpu_dai->driver->ops && cpu_dai->driver->ops->prepare) {
 		ret = cpu_dai->driver->ops->prepare(substream, cpu_dai);
 		if (ret < 0) {
 			dev_err(cpu_dai->dev, "ASoC: DAI prepare error: %d\n",
@@ -523,7 +523,7 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
 		}
 	}
 
-	if (codec_dai->driver->ops->hw_params) {
+	if (codec_dai->driver->ops && codec_dai->driver->ops->hw_params) {
 		ret = codec_dai->driver->ops->hw_params(substream, params, codec_dai);
 		if (ret < 0) {
 			dev_err(codec_dai->dev, "ASoC: can't set %s hw params:"
@@ -532,7 +532,7 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
 		}
 	}
 
-	if (cpu_dai->driver->ops->hw_params) {
+	if (cpu_dai->driver->ops && cpu_dai->driver->ops->hw_params) {
 		ret = cpu_dai->driver->ops->hw_params(substream, params, cpu_dai);
 		if (ret < 0) {
 			dev_err(cpu_dai->dev, "ASoC: %s hw params failed: %d\n",
@@ -559,11 +559,11 @@ out:
 	return ret;
 
 platform_err:
-	if (cpu_dai->driver->ops->hw_free)
+	if (cpu_dai->driver->ops && cpu_dai->driver->ops->hw_free)
 		cpu_dai->driver->ops->hw_free(substream, cpu_dai);
 
 interface_err:
-	if (codec_dai->driver->ops->hw_free)
+	if (codec_dai->driver->ops && codec_dai->driver->ops->hw_free)
 		codec_dai->driver->ops->hw_free(substream, codec_dai);
 
 codec_err:
@@ -600,10 +600,10 @@ static int soc_pcm_hw_free(struct snd_pcm_substream *substream)
 		platform->driver->ops->hw_free(substream);
 
 	/* now free hw params for the DAIs  */
-	if (codec_dai->driver->ops->hw_free)
+	if (codec_dai->driver->ops && codec_dai->driver->ops->hw_free)
 		codec_dai->driver->ops->hw_free(substream, codec_dai);
 
-	if (cpu_dai->driver->ops->hw_free)
+	if (cpu_dai->driver->ops && cpu_dai->driver->ops->hw_free)
 		cpu_dai->driver->ops->hw_free(substream, cpu_dai);
 
 	mutex_unlock(&rtd->pcm_mutex);
@@ -618,7 +618,7 @@ static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 	int ret;
 
-	if (codec_dai->driver->ops->trigger) {
+	if (codec_dai->driver->ops && codec_dai->driver->ops->trigger) {
 		ret = codec_dai->driver->ops->trigger(substream, cmd, codec_dai);
 		if (ret < 0)
 			return ret;
@@ -630,7 +630,7 @@ static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 			return ret;
 	}
 
-	if (cpu_dai->driver->ops->trigger) {
+	if (cpu_dai->driver->ops && cpu_dai->driver->ops->trigger) {
 		ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai);
 		if (ret < 0)
 			return ret;
@@ -647,19 +647,20 @@ static int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream,
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;
 	int ret;
 
-	if (codec_dai->driver->ops->bespoke_trigger) {
+	if (codec_dai->driver->ops &&
+	    codec_dai->driver->ops->bespoke_trigger) {
 		ret = codec_dai->driver->ops->bespoke_trigger(substream, cmd, codec_dai);
 		if (ret < 0)
 			return ret;
 	}
 
-	if (platform->driver->bespoke_trigger) {
+	if (platform->driver->ops && platform->driver->bespoke_trigger) {
 		ret = platform->driver->bespoke_trigger(substream, cmd);
 		if (ret < 0)
 			return ret;
 	}
 
-	if (cpu_dai->driver->ops->bespoke_trigger) {
+	if (cpu_dai->driver->ops && cpu_dai->driver->ops->bespoke_trigger) {
 		ret = cpu_dai->driver->ops->bespoke_trigger(substream, cmd, cpu_dai);
 		if (ret < 0)
 			return ret;
@@ -684,10 +685,10 @@ static snd_pcm_uframes_t soc_pcm_pointer(struct snd_pcm_substream *substream)
 	if (platform->driver->ops && platform->driver->ops->pointer)
 		offset = platform->driver->ops->pointer(substream);
 
-	if (cpu_dai->driver->ops->delay)
+	if (cpu_dai->driver->ops && cpu_dai->driver->ops->delay)
 		delay += cpu_dai->driver->ops->delay(substream, cpu_dai);
 
-	if (codec_dai->driver->ops->delay)
+	if (codec_dai->driver->ops && codec_dai->driver->ops->delay)
 		delay += codec_dai->driver->ops->delay(substream, codec_dai);
 
 	if (platform->driver->delay)
@@ -1673,7 +1674,7 @@ static int soc_pcm_ioctl(struct snd_pcm_substream *substream,
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_platform *platform = rtd->platform;
 
-	if (platform->driver->ops->ioctl)
+	if (platform->driver->ops && platform->driver->ops->ioctl)
 		return platform->driver->ops->ioctl(substream, cmd, arg);
 	return snd_pcm_lib_ioctl(substream, cmd, arg);
 }
@@ -1934,8 +1935,8 @@ int soc_dpcm_be_digital_mute(struct snd_soc_pcm_runtime *fe, int mute)
 
 		dev_dbg(be->dev, "ASoC: BE digital mute %s\n", be->dai_link->name);
 
-		if (drv->ops->digital_mute && dai->playback_active)
-				drv->ops->digital_mute(dai, mute);
+		if (drv->ops && drv->ops->digital_mute && dai->playback_active)
+			drv->ops->digital_mute(dai, mute);
 	}
 
 	return 0;
@@ -2224,7 +2225,7 @@ EXPORT_SYMBOL_GPL(snd_soc_dpcm_can_be_params);
 int snd_soc_platform_trigger(struct snd_pcm_substream *substream,
 		int cmd, struct snd_soc_platform *platform)
 {
-	if (platform->driver->ops->trigger)
+	if (platform->driver->ops && platform->driver->ops->trigger)
 		return platform->driver->ops->trigger(substream, cmd);
 	return 0;
 }
-- 
cgit 


From 2062b4c5d2d8fa47dc89105464e67a7ba310c9e7 Mon Sep 17 00:00:00 2001
From: Russell King - ARM Linux <linux@arm.linux.org.uk>
Date: Thu, 31 Oct 2013 15:09:20 +0000
Subject: ASoC: dpcm: improve robustness

Avoid oopsing if there is no backend stream associated with a front end
stream.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/soc-pcm.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index d81b79251760..591f0f3074c5 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1038,6 +1038,12 @@ static int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream)
 		struct snd_pcm_substream *be_substream =
 			snd_soc_dpcm_get_substream(be, stream);
 
+		if (!be_substream) {
+			dev_err(be->dev, "ASoC: no backend %s stream\n",
+				stream ? "capture" : "playback");
+			continue;
+		}
+
 		/* is this op for this BE ? */
 		if (!snd_soc_dpcm_be_can_update(fe, be, stream))
 			continue;
@@ -1055,7 +1061,8 @@ static int dpcm_be_dai_startup(struct snd_soc_pcm_runtime *fe, int stream)
 		    (be->dpcm[stream].state != SND_SOC_DPCM_STATE_CLOSE))
 			continue;
 
-		dev_dbg(be->dev, "ASoC: open BE %s\n", be->dai_link->name);
+		dev_dbg(be->dev, "ASoC: open %s BE %s\n",
+			stream ? "capture" : "playback", be->dai_link->name);
 
 		be_substream->runtime = be->dpcm[stream].runtime;
 		err = soc_pcm_open(be_substream);
-- 
cgit 


From 7ea6c6c15ee16f4c7f5eeaa62f77e696f85ae0d1 Mon Sep 17 00:00:00 2001
From: "Luck, Tony" <tony.luck@intel.com>
Date: Mon, 28 Oct 2013 14:06:55 -0700
Subject: Move cper.c from drivers/acpi/apei to drivers/firmware/efi

cper.c contains code to decode and print "Common Platform Error Records".
Originally added under drivers/acpi/apei because the only user was in that
same directory - but now we have another consumer, and we shouldn't have
to force CONFIG_ACPI_APEI get access to this code.

Since CPER is defined in the UEFI specification - the logical home for
this code is under drivers/firmware/efi/

Acked-by: Matt Fleming <matt.fleming@intel.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
 drivers/acpi/Kconfig          |   4 +-
 drivers/acpi/apei/Kconfig     |   2 +
 drivers/acpi/apei/Makefile    |   2 +-
 drivers/acpi/apei/cper.c      | 410 ------------------------------------------
 drivers/firmware/efi/Kconfig  |   3 +
 drivers/firmware/efi/Makefile |   1 +
 drivers/firmware/efi/cper.c   | 410 ++++++++++++++++++++++++++++++++++++++++++
 7 files changed, 420 insertions(+), 412 deletions(-)
 delete mode 100644 drivers/acpi/apei/cper.c
 create mode 100644 drivers/firmware/efi/cper.c

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 252f0e818a49..08eadb4a57cb 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -374,7 +374,9 @@ source "drivers/acpi/apei/Kconfig"
 
 config ACPI_EXTLOG
 	tristate "Extended Error Log support"
-	depends on X86_MCE && ACPI_APEI
+	depends on X86_MCE
+	select EFI
+	select UEFI_CPER
 	default n
 	help
 	  Certain usages such as Predictive Failure Analysis (PFA) require
diff --git a/drivers/acpi/apei/Kconfig b/drivers/acpi/apei/Kconfig
index f0c1ce95a0ec..786294bb682c 100644
--- a/drivers/acpi/apei/Kconfig
+++ b/drivers/acpi/apei/Kconfig
@@ -2,6 +2,8 @@ config ACPI_APEI
 	bool "ACPI Platform Error Interface (APEI)"
 	select MISC_FILESYSTEMS
 	select PSTORE
+	select EFI
+	select UEFI_CPER
 	depends on X86
 	help
 	  APEI allows to report errors (for example from the chipset)
diff --git a/drivers/acpi/apei/Makefile b/drivers/acpi/apei/Makefile
index d1d1bc0a4ee1..5d575a955940 100644
--- a/drivers/acpi/apei/Makefile
+++ b/drivers/acpi/apei/Makefile
@@ -3,4 +3,4 @@ obj-$(CONFIG_ACPI_APEI_GHES)	+= ghes.o
 obj-$(CONFIG_ACPI_APEI_EINJ)	+= einj.o
 obj-$(CONFIG_ACPI_APEI_ERST_DEBUG) += erst-dbg.o
 
-apei-y := apei-base.o hest.o cper.o erst.o
+apei-y := apei-base.o hest.o erst.o
diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c
deleted file mode 100644
index 1491dd4f08f9..000000000000
--- a/drivers/acpi/apei/cper.c
+++ /dev/null
@@ -1,410 +0,0 @@
-/*
- * UEFI Common Platform Error Record (CPER) support
- *
- * Copyright (C) 2010, Intel Corp.
- *	Author: Huang Ying <ying.huang@intel.com>
- *
- * CPER is the format used to describe platform hardware error by
- * various tables, such as ERST, BERT and HEST etc.
- *
- * For more information about CPER, please refer to Appendix N of UEFI
- * Specification version 2.4.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/time.h>
-#include <linux/cper.h>
-#include <linux/dmi.h>
-#include <linux/acpi.h>
-#include <linux/pci.h>
-#include <linux/aer.h>
-
-#define INDENT_SP	" "
-/*
- * CPER record ID need to be unique even after reboot, because record
- * ID is used as index for ERST storage, while CPER records from
- * multiple boot may co-exist in ERST.
- */
-u64 cper_next_record_id(void)
-{
-	static atomic64_t seq;
-
-	if (!atomic64_read(&seq))
-		atomic64_set(&seq, ((u64)get_seconds()) << 32);
-
-	return atomic64_inc_return(&seq);
-}
-EXPORT_SYMBOL_GPL(cper_next_record_id);
-
-static const char *cper_severity_strs[] = {
-	"recoverable",
-	"fatal",
-	"corrected",
-	"info",
-};
-
-static const char *cper_severity_str(unsigned int severity)
-{
-	return severity < ARRAY_SIZE(cper_severity_strs) ?
-		cper_severity_strs[severity] : "unknown";
-}
-
-/*
- * cper_print_bits - print strings for set bits
- * @pfx: prefix for each line, including log level and prefix string
- * @bits: bit mask
- * @strs: string array, indexed by bit position
- * @strs_size: size of the string array: @strs
- *
- * For each set bit in @bits, print the corresponding string in @strs.
- * If the output length is longer than 80, multiple line will be
- * printed, with @pfx is printed at the beginning of each line.
- */
-void cper_print_bits(const char *pfx, unsigned int bits,
-		     const char * const strs[], unsigned int strs_size)
-{
-	int i, len = 0;
-	const char *str;
-	char buf[84];
-
-	for (i = 0; i < strs_size; i++) {
-		if (!(bits & (1U << i)))
-			continue;
-		str = strs[i];
-		if (!str)
-			continue;
-		if (len && len + strlen(str) + 2 > 80) {
-			printk("%s\n", buf);
-			len = 0;
-		}
-		if (!len)
-			len = snprintf(buf, sizeof(buf), "%s%s", pfx, str);
-		else
-			len += snprintf(buf+len, sizeof(buf)-len, ", %s", str);
-	}
-	if (len)
-		printk("%s\n", buf);
-}
-
-static const char * const cper_proc_type_strs[] = {
-	"IA32/X64",
-	"IA64",
-};
-
-static const char * const cper_proc_isa_strs[] = {
-	"IA32",
-	"IA64",
-	"X64",
-};
-
-static const char * const cper_proc_error_type_strs[] = {
-	"cache error",
-	"TLB error",
-	"bus error",
-	"micro-architectural error",
-};
-
-static const char * const cper_proc_op_strs[] = {
-	"unknown or generic",
-	"data read",
-	"data write",
-	"instruction execution",
-};
-
-static const char * const cper_proc_flag_strs[] = {
-	"restartable",
-	"precise IP",
-	"overflow",
-	"corrected",
-};
-
-static void cper_print_proc_generic(const char *pfx,
-				    const struct cper_sec_proc_generic *proc)
-{
-	if (proc->validation_bits & CPER_PROC_VALID_TYPE)
-		printk("%s""processor_type: %d, %s\n", pfx, proc->proc_type,
-		       proc->proc_type < ARRAY_SIZE(cper_proc_type_strs) ?
-		       cper_proc_type_strs[proc->proc_type] : "unknown");
-	if (proc->validation_bits & CPER_PROC_VALID_ISA)
-		printk("%s""processor_isa: %d, %s\n", pfx, proc->proc_isa,
-		       proc->proc_isa < ARRAY_SIZE(cper_proc_isa_strs) ?
-		       cper_proc_isa_strs[proc->proc_isa] : "unknown");
-	if (proc->validation_bits & CPER_PROC_VALID_ERROR_TYPE) {
-		printk("%s""error_type: 0x%02x\n", pfx, proc->proc_error_type);
-		cper_print_bits(pfx, proc->proc_error_type,
-				cper_proc_error_type_strs,
-				ARRAY_SIZE(cper_proc_error_type_strs));
-	}
-	if (proc->validation_bits & CPER_PROC_VALID_OPERATION)
-		printk("%s""operation: %d, %s\n", pfx, proc->operation,
-		       proc->operation < ARRAY_SIZE(cper_proc_op_strs) ?
-		       cper_proc_op_strs[proc->operation] : "unknown");
-	if (proc->validation_bits & CPER_PROC_VALID_FLAGS) {
-		printk("%s""flags: 0x%02x\n", pfx, proc->flags);
-		cper_print_bits(pfx, proc->flags, cper_proc_flag_strs,
-				ARRAY_SIZE(cper_proc_flag_strs));
-	}
-	if (proc->validation_bits & CPER_PROC_VALID_LEVEL)
-		printk("%s""level: %d\n", pfx, proc->level);
-	if (proc->validation_bits & CPER_PROC_VALID_VERSION)
-		printk("%s""version_info: 0x%016llx\n", pfx, proc->cpu_version);
-	if (proc->validation_bits & CPER_PROC_VALID_ID)
-		printk("%s""processor_id: 0x%016llx\n", pfx, proc->proc_id);
-	if (proc->validation_bits & CPER_PROC_VALID_TARGET_ADDRESS)
-		printk("%s""target_address: 0x%016llx\n",
-		       pfx, proc->target_addr);
-	if (proc->validation_bits & CPER_PROC_VALID_REQUESTOR_ID)
-		printk("%s""requestor_id: 0x%016llx\n",
-		       pfx, proc->requestor_id);
-	if (proc->validation_bits & CPER_PROC_VALID_RESPONDER_ID)
-		printk("%s""responder_id: 0x%016llx\n",
-		       pfx, proc->responder_id);
-	if (proc->validation_bits & CPER_PROC_VALID_IP)
-		printk("%s""IP: 0x%016llx\n", pfx, proc->ip);
-}
-
-static const char *cper_mem_err_type_strs[] = {
-	"unknown",
-	"no error",
-	"single-bit ECC",
-	"multi-bit ECC",
-	"single-symbol chipkill ECC",
-	"multi-symbol chipkill ECC",
-	"master abort",
-	"target abort",
-	"parity error",
-	"watchdog timeout",
-	"invalid address",
-	"mirror Broken",
-	"memory sparing",
-	"scrub corrected error",
-	"scrub uncorrected error",
-	"physical memory map-out event",
-};
-
-static void cper_print_mem(const char *pfx, const struct cper_sec_mem_err *mem)
-{
-	if (mem->validation_bits & CPER_MEM_VALID_ERROR_STATUS)
-		printk("%s""error_status: 0x%016llx\n", pfx, mem->error_status);
-	if (mem->validation_bits & CPER_MEM_VALID_PA)
-		printk("%s""physical_address: 0x%016llx\n",
-		       pfx, mem->physical_addr);
-	if (mem->validation_bits & CPER_MEM_VALID_PA_MASK)
-		printk("%s""physical_address_mask: 0x%016llx\n",
-		       pfx, mem->physical_addr_mask);
-	if (mem->validation_bits & CPER_MEM_VALID_NODE)
-		pr_debug("node: %d\n", mem->node);
-	if (mem->validation_bits & CPER_MEM_VALID_CARD)
-		pr_debug("card: %d\n", mem->card);
-	if (mem->validation_bits & CPER_MEM_VALID_MODULE)
-		pr_debug("module: %d\n", mem->module);
-	if (mem->validation_bits & CPER_MEM_VALID_RANK_NUMBER)
-		pr_debug("rank: %d\n", mem->rank);
-	if (mem->validation_bits & CPER_MEM_VALID_BANK)
-		pr_debug("bank: %d\n", mem->bank);
-	if (mem->validation_bits & CPER_MEM_VALID_DEVICE)
-		pr_debug("device: %d\n", mem->device);
-	if (mem->validation_bits & CPER_MEM_VALID_ROW)
-		pr_debug("row: %d\n", mem->row);
-	if (mem->validation_bits & CPER_MEM_VALID_COLUMN)
-		pr_debug("column: %d\n", mem->column);
-	if (mem->validation_bits & CPER_MEM_VALID_BIT_POSITION)
-		pr_debug("bit_position: %d\n", mem->bit_pos);
-	if (mem->validation_bits & CPER_MEM_VALID_REQUESTOR_ID)
-		pr_debug("requestor_id: 0x%016llx\n", mem->requestor_id);
-	if (mem->validation_bits & CPER_MEM_VALID_RESPONDER_ID)
-		pr_debug("responder_id: 0x%016llx\n", mem->responder_id);
-	if (mem->validation_bits & CPER_MEM_VALID_TARGET_ID)
-		pr_debug("target_id: 0x%016llx\n", mem->target_id);
-	if (mem->validation_bits & CPER_MEM_VALID_ERROR_TYPE) {
-		u8 etype = mem->error_type;
-		printk("%s""error_type: %d, %s\n", pfx, etype,
-		       etype < ARRAY_SIZE(cper_mem_err_type_strs) ?
-		       cper_mem_err_type_strs[etype] : "unknown");
-	}
-	if (mem->validation_bits & CPER_MEM_VALID_MODULE_HANDLE) {
-		const char *bank = NULL, *device = NULL;
-		dmi_memdev_name(mem->mem_dev_handle, &bank, &device);
-		if (bank != NULL && device != NULL)
-			printk("%s""DIMM location: %s %s", pfx, bank, device);
-		else
-			printk("%s""DIMM DMI handle: 0x%.4x",
-			       pfx, mem->mem_dev_handle);
-	}
-}
-
-static const char *cper_pcie_port_type_strs[] = {
-	"PCIe end point",
-	"legacy PCI end point",
-	"unknown",
-	"unknown",
-	"root port",
-	"upstream switch port",
-	"downstream switch port",
-	"PCIe to PCI/PCI-X bridge",
-	"PCI/PCI-X to PCIe bridge",
-	"root complex integrated endpoint device",
-	"root complex event collector",
-};
-
-static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie,
-			    const struct acpi_generic_data *gdata)
-{
-	if (pcie->validation_bits & CPER_PCIE_VALID_PORT_TYPE)
-		printk("%s""port_type: %d, %s\n", pfx, pcie->port_type,
-		       pcie->port_type < ARRAY_SIZE(cper_pcie_port_type_strs) ?
-		       cper_pcie_port_type_strs[pcie->port_type] : "unknown");
-	if (pcie->validation_bits & CPER_PCIE_VALID_VERSION)
-		printk("%s""version: %d.%d\n", pfx,
-		       pcie->version.major, pcie->version.minor);
-	if (pcie->validation_bits & CPER_PCIE_VALID_COMMAND_STATUS)
-		printk("%s""command: 0x%04x, status: 0x%04x\n", pfx,
-		       pcie->command, pcie->status);
-	if (pcie->validation_bits & CPER_PCIE_VALID_DEVICE_ID) {
-		const __u8 *p;
-		printk("%s""device_id: %04x:%02x:%02x.%x\n", pfx,
-		       pcie->device_id.segment, pcie->device_id.bus,
-		       pcie->device_id.device, pcie->device_id.function);
-		printk("%s""slot: %d\n", pfx,
-		       pcie->device_id.slot >> CPER_PCIE_SLOT_SHIFT);
-		printk("%s""secondary_bus: 0x%02x\n", pfx,
-		       pcie->device_id.secondary_bus);
-		printk("%s""vendor_id: 0x%04x, device_id: 0x%04x\n", pfx,
-		       pcie->device_id.vendor_id, pcie->device_id.device_id);
-		p = pcie->device_id.class_code;
-		printk("%s""class_code: %02x%02x%02x\n", pfx, p[0], p[1], p[2]);
-	}
-	if (pcie->validation_bits & CPER_PCIE_VALID_SERIAL_NUMBER)
-		printk("%s""serial number: 0x%04x, 0x%04x\n", pfx,
-		       pcie->serial_number.lower, pcie->serial_number.upper);
-	if (pcie->validation_bits & CPER_PCIE_VALID_BRIDGE_CONTROL_STATUS)
-		printk(
-	"%s""bridge: secondary_status: 0x%04x, control: 0x%04x\n",
-	pfx, pcie->bridge.secondary_status, pcie->bridge.control);
-}
-
-static void cper_estatus_print_section(
-	const char *pfx, const struct acpi_generic_data *gdata, int sec_no)
-{
-	uuid_le *sec_type = (uuid_le *)gdata->section_type;
-	__u16 severity;
-	char newpfx[64];
-
-	severity = gdata->error_severity;
-	printk("%s""Error %d, type: %s\n", pfx, sec_no,
-	       cper_severity_str(severity));
-	if (gdata->validation_bits & CPER_SEC_VALID_FRU_ID)
-		printk("%s""fru_id: %pUl\n", pfx, (uuid_le *)gdata->fru_id);
-	if (gdata->validation_bits & CPER_SEC_VALID_FRU_TEXT)
-		printk("%s""fru_text: %.20s\n", pfx, gdata->fru_text);
-
-	snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP);
-	if (!uuid_le_cmp(*sec_type, CPER_SEC_PROC_GENERIC)) {
-		struct cper_sec_proc_generic *proc_err = (void *)(gdata + 1);
-		printk("%s""section_type: general processor error\n", newpfx);
-		if (gdata->error_data_length >= sizeof(*proc_err))
-			cper_print_proc_generic(newpfx, proc_err);
-		else
-			goto err_section_too_small;
-	} else if (!uuid_le_cmp(*sec_type, CPER_SEC_PLATFORM_MEM)) {
-		struct cper_sec_mem_err *mem_err = (void *)(gdata + 1);
-		printk("%s""section_type: memory error\n", newpfx);
-		if (gdata->error_data_length >= sizeof(*mem_err))
-			cper_print_mem(newpfx, mem_err);
-		else
-			goto err_section_too_small;
-	} else if (!uuid_le_cmp(*sec_type, CPER_SEC_PCIE)) {
-		struct cper_sec_pcie *pcie = (void *)(gdata + 1);
-		printk("%s""section_type: PCIe error\n", newpfx);
-		if (gdata->error_data_length >= sizeof(*pcie))
-			cper_print_pcie(newpfx, pcie, gdata);
-		else
-			goto err_section_too_small;
-	} else
-		printk("%s""section type: unknown, %pUl\n", newpfx, sec_type);
-
-	return;
-
-err_section_too_small:
-	pr_err(FW_WARN "error section length is too small\n");
-}
-
-void cper_estatus_print(const char *pfx,
-			const struct acpi_generic_status *estatus)
-{
-	struct acpi_generic_data *gdata;
-	unsigned int data_len, gedata_len;
-	int sec_no = 0;
-	char newpfx[64];
-	__u16 severity;
-
-	severity = estatus->error_severity;
-	if (severity == CPER_SEV_CORRECTED)
-		printk("%s%s\n", pfx,
-		       "It has been corrected by h/w "
-		       "and requires no further action");
-	printk("%s""event severity: %s\n", pfx, cper_severity_str(severity));
-	data_len = estatus->data_length;
-	gdata = (struct acpi_generic_data *)(estatus + 1);
-	snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP);
-	while (data_len >= sizeof(*gdata)) {
-		gedata_len = gdata->error_data_length;
-		cper_estatus_print_section(newpfx, gdata, sec_no);
-		data_len -= gedata_len + sizeof(*gdata);
-		gdata = (void *)(gdata + 1) + gedata_len;
-		sec_no++;
-	}
-}
-EXPORT_SYMBOL_GPL(cper_estatus_print);
-
-int cper_estatus_check_header(const struct acpi_generic_status *estatus)
-{
-	if (estatus->data_length &&
-	    estatus->data_length < sizeof(struct acpi_generic_data))
-		return -EINVAL;
-	if (estatus->raw_data_length &&
-	    estatus->raw_data_offset < sizeof(*estatus) + estatus->data_length)
-		return -EINVAL;
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(cper_estatus_check_header);
-
-int cper_estatus_check(const struct acpi_generic_status *estatus)
-{
-	struct acpi_generic_data *gdata;
-	unsigned int data_len, gedata_len;
-	int rc;
-
-	rc = cper_estatus_check_header(estatus);
-	if (rc)
-		return rc;
-	data_len = estatus->data_length;
-	gdata = (struct acpi_generic_data *)(estatus + 1);
-	while (data_len >= sizeof(*gdata)) {
-		gedata_len = gdata->error_data_length;
-		if (gedata_len > data_len - sizeof(*gdata))
-			return -EINVAL;
-		data_len -= gedata_len + sizeof(*gdata);
-		gdata = (void *)(gdata + 1) + gedata_len;
-	}
-	if (data_len)
-		return -EINVAL;
-
-	return 0;
-}
-EXPORT_SYMBOL_GPL(cper_estatus_check);
diff --git a/drivers/firmware/efi/Kconfig b/drivers/firmware/efi/Kconfig
index b0fc7c79dfbb..3150aa4874e8 100644
--- a/drivers/firmware/efi/Kconfig
+++ b/drivers/firmware/efi/Kconfig
@@ -36,4 +36,7 @@ config EFI_VARS_PSTORE_DEFAULT_DISABLE
 	  backend for pstore by default. This setting can be overridden
 	  using the efivars module's pstore_disable parameter.
 
+config UEFI_CPER
+	def_bool n
+
 endmenu
diff --git a/drivers/firmware/efi/Makefile b/drivers/firmware/efi/Makefile
index 99245ab5a79c..9ba156d3c775 100644
--- a/drivers/firmware/efi/Makefile
+++ b/drivers/firmware/efi/Makefile
@@ -4,3 +4,4 @@
 obj-y					+= efi.o vars.o
 obj-$(CONFIG_EFI_VARS)			+= efivars.o
 obj-$(CONFIG_EFI_VARS_PSTORE)		+= efi-pstore.o
+obj-$(CONFIG_UEFI_CPER)			+= cper.o
diff --git a/drivers/firmware/efi/cper.c b/drivers/firmware/efi/cper.c
new file mode 100644
index 000000000000..1491dd4f08f9
--- /dev/null
+++ b/drivers/firmware/efi/cper.c
@@ -0,0 +1,410 @@
+/*
+ * UEFI Common Platform Error Record (CPER) support
+ *
+ * Copyright (C) 2010, Intel Corp.
+ *	Author: Huang Ying <ying.huang@intel.com>
+ *
+ * CPER is the format used to describe platform hardware error by
+ * various tables, such as ERST, BERT and HEST etc.
+ *
+ * For more information about CPER, please refer to Appendix N of UEFI
+ * Specification version 2.4.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/time.h>
+#include <linux/cper.h>
+#include <linux/dmi.h>
+#include <linux/acpi.h>
+#include <linux/pci.h>
+#include <linux/aer.h>
+
+#define INDENT_SP	" "
+/*
+ * CPER record ID need to be unique even after reboot, because record
+ * ID is used as index for ERST storage, while CPER records from
+ * multiple boot may co-exist in ERST.
+ */
+u64 cper_next_record_id(void)
+{
+	static atomic64_t seq;
+
+	if (!atomic64_read(&seq))
+		atomic64_set(&seq, ((u64)get_seconds()) << 32);
+
+	return atomic64_inc_return(&seq);
+}
+EXPORT_SYMBOL_GPL(cper_next_record_id);
+
+static const char *cper_severity_strs[] = {
+	"recoverable",
+	"fatal",
+	"corrected",
+	"info",
+};
+
+static const char *cper_severity_str(unsigned int severity)
+{
+	return severity < ARRAY_SIZE(cper_severity_strs) ?
+		cper_severity_strs[severity] : "unknown";
+}
+
+/*
+ * cper_print_bits - print strings for set bits
+ * @pfx: prefix for each line, including log level and prefix string
+ * @bits: bit mask
+ * @strs: string array, indexed by bit position
+ * @strs_size: size of the string array: @strs
+ *
+ * For each set bit in @bits, print the corresponding string in @strs.
+ * If the output length is longer than 80, multiple line will be
+ * printed, with @pfx is printed at the beginning of each line.
+ */
+void cper_print_bits(const char *pfx, unsigned int bits,
+		     const char * const strs[], unsigned int strs_size)
+{
+	int i, len = 0;
+	const char *str;
+	char buf[84];
+
+	for (i = 0; i < strs_size; i++) {
+		if (!(bits & (1U << i)))
+			continue;
+		str = strs[i];
+		if (!str)
+			continue;
+		if (len && len + strlen(str) + 2 > 80) {
+			printk("%s\n", buf);
+			len = 0;
+		}
+		if (!len)
+			len = snprintf(buf, sizeof(buf), "%s%s", pfx, str);
+		else
+			len += snprintf(buf+len, sizeof(buf)-len, ", %s", str);
+	}
+	if (len)
+		printk("%s\n", buf);
+}
+
+static const char * const cper_proc_type_strs[] = {
+	"IA32/X64",
+	"IA64",
+};
+
+static const char * const cper_proc_isa_strs[] = {
+	"IA32",
+	"IA64",
+	"X64",
+};
+
+static const char * const cper_proc_error_type_strs[] = {
+	"cache error",
+	"TLB error",
+	"bus error",
+	"micro-architectural error",
+};
+
+static const char * const cper_proc_op_strs[] = {
+	"unknown or generic",
+	"data read",
+	"data write",
+	"instruction execution",
+};
+
+static const char * const cper_proc_flag_strs[] = {
+	"restartable",
+	"precise IP",
+	"overflow",
+	"corrected",
+};
+
+static void cper_print_proc_generic(const char *pfx,
+				    const struct cper_sec_proc_generic *proc)
+{
+	if (proc->validation_bits & CPER_PROC_VALID_TYPE)
+		printk("%s""processor_type: %d, %s\n", pfx, proc->proc_type,
+		       proc->proc_type < ARRAY_SIZE(cper_proc_type_strs) ?
+		       cper_proc_type_strs[proc->proc_type] : "unknown");
+	if (proc->validation_bits & CPER_PROC_VALID_ISA)
+		printk("%s""processor_isa: %d, %s\n", pfx, proc->proc_isa,
+		       proc->proc_isa < ARRAY_SIZE(cper_proc_isa_strs) ?
+		       cper_proc_isa_strs[proc->proc_isa] : "unknown");
+	if (proc->validation_bits & CPER_PROC_VALID_ERROR_TYPE) {
+		printk("%s""error_type: 0x%02x\n", pfx, proc->proc_error_type);
+		cper_print_bits(pfx, proc->proc_error_type,
+				cper_proc_error_type_strs,
+				ARRAY_SIZE(cper_proc_error_type_strs));
+	}
+	if (proc->validation_bits & CPER_PROC_VALID_OPERATION)
+		printk("%s""operation: %d, %s\n", pfx, proc->operation,
+		       proc->operation < ARRAY_SIZE(cper_proc_op_strs) ?
+		       cper_proc_op_strs[proc->operation] : "unknown");
+	if (proc->validation_bits & CPER_PROC_VALID_FLAGS) {
+		printk("%s""flags: 0x%02x\n", pfx, proc->flags);
+		cper_print_bits(pfx, proc->flags, cper_proc_flag_strs,
+				ARRAY_SIZE(cper_proc_flag_strs));
+	}
+	if (proc->validation_bits & CPER_PROC_VALID_LEVEL)
+		printk("%s""level: %d\n", pfx, proc->level);
+	if (proc->validation_bits & CPER_PROC_VALID_VERSION)
+		printk("%s""version_info: 0x%016llx\n", pfx, proc->cpu_version);
+	if (proc->validation_bits & CPER_PROC_VALID_ID)
+		printk("%s""processor_id: 0x%016llx\n", pfx, proc->proc_id);
+	if (proc->validation_bits & CPER_PROC_VALID_TARGET_ADDRESS)
+		printk("%s""target_address: 0x%016llx\n",
+		       pfx, proc->target_addr);
+	if (proc->validation_bits & CPER_PROC_VALID_REQUESTOR_ID)
+		printk("%s""requestor_id: 0x%016llx\n",
+		       pfx, proc->requestor_id);
+	if (proc->validation_bits & CPER_PROC_VALID_RESPONDER_ID)
+		printk("%s""responder_id: 0x%016llx\n",
+		       pfx, proc->responder_id);
+	if (proc->validation_bits & CPER_PROC_VALID_IP)
+		printk("%s""IP: 0x%016llx\n", pfx, proc->ip);
+}
+
+static const char *cper_mem_err_type_strs[] = {
+	"unknown",
+	"no error",
+	"single-bit ECC",
+	"multi-bit ECC",
+	"single-symbol chipkill ECC",
+	"multi-symbol chipkill ECC",
+	"master abort",
+	"target abort",
+	"parity error",
+	"watchdog timeout",
+	"invalid address",
+	"mirror Broken",
+	"memory sparing",
+	"scrub corrected error",
+	"scrub uncorrected error",
+	"physical memory map-out event",
+};
+
+static void cper_print_mem(const char *pfx, const struct cper_sec_mem_err *mem)
+{
+	if (mem->validation_bits & CPER_MEM_VALID_ERROR_STATUS)
+		printk("%s""error_status: 0x%016llx\n", pfx, mem->error_status);
+	if (mem->validation_bits & CPER_MEM_VALID_PA)
+		printk("%s""physical_address: 0x%016llx\n",
+		       pfx, mem->physical_addr);
+	if (mem->validation_bits & CPER_MEM_VALID_PA_MASK)
+		printk("%s""physical_address_mask: 0x%016llx\n",
+		       pfx, mem->physical_addr_mask);
+	if (mem->validation_bits & CPER_MEM_VALID_NODE)
+		pr_debug("node: %d\n", mem->node);
+	if (mem->validation_bits & CPER_MEM_VALID_CARD)
+		pr_debug("card: %d\n", mem->card);
+	if (mem->validation_bits & CPER_MEM_VALID_MODULE)
+		pr_debug("module: %d\n", mem->module);
+	if (mem->validation_bits & CPER_MEM_VALID_RANK_NUMBER)
+		pr_debug("rank: %d\n", mem->rank);
+	if (mem->validation_bits & CPER_MEM_VALID_BANK)
+		pr_debug("bank: %d\n", mem->bank);
+	if (mem->validation_bits & CPER_MEM_VALID_DEVICE)
+		pr_debug("device: %d\n", mem->device);
+	if (mem->validation_bits & CPER_MEM_VALID_ROW)
+		pr_debug("row: %d\n", mem->row);
+	if (mem->validation_bits & CPER_MEM_VALID_COLUMN)
+		pr_debug("column: %d\n", mem->column);
+	if (mem->validation_bits & CPER_MEM_VALID_BIT_POSITION)
+		pr_debug("bit_position: %d\n", mem->bit_pos);
+	if (mem->validation_bits & CPER_MEM_VALID_REQUESTOR_ID)
+		pr_debug("requestor_id: 0x%016llx\n", mem->requestor_id);
+	if (mem->validation_bits & CPER_MEM_VALID_RESPONDER_ID)
+		pr_debug("responder_id: 0x%016llx\n", mem->responder_id);
+	if (mem->validation_bits & CPER_MEM_VALID_TARGET_ID)
+		pr_debug("target_id: 0x%016llx\n", mem->target_id);
+	if (mem->validation_bits & CPER_MEM_VALID_ERROR_TYPE) {
+		u8 etype = mem->error_type;
+		printk("%s""error_type: %d, %s\n", pfx, etype,
+		       etype < ARRAY_SIZE(cper_mem_err_type_strs) ?
+		       cper_mem_err_type_strs[etype] : "unknown");
+	}
+	if (mem->validation_bits & CPER_MEM_VALID_MODULE_HANDLE) {
+		const char *bank = NULL, *device = NULL;
+		dmi_memdev_name(mem->mem_dev_handle, &bank, &device);
+		if (bank != NULL && device != NULL)
+			printk("%s""DIMM location: %s %s", pfx, bank, device);
+		else
+			printk("%s""DIMM DMI handle: 0x%.4x",
+			       pfx, mem->mem_dev_handle);
+	}
+}
+
+static const char *cper_pcie_port_type_strs[] = {
+	"PCIe end point",
+	"legacy PCI end point",
+	"unknown",
+	"unknown",
+	"root port",
+	"upstream switch port",
+	"downstream switch port",
+	"PCIe to PCI/PCI-X bridge",
+	"PCI/PCI-X to PCIe bridge",
+	"root complex integrated endpoint device",
+	"root complex event collector",
+};
+
+static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie,
+			    const struct acpi_generic_data *gdata)
+{
+	if (pcie->validation_bits & CPER_PCIE_VALID_PORT_TYPE)
+		printk("%s""port_type: %d, %s\n", pfx, pcie->port_type,
+		       pcie->port_type < ARRAY_SIZE(cper_pcie_port_type_strs) ?
+		       cper_pcie_port_type_strs[pcie->port_type] : "unknown");
+	if (pcie->validation_bits & CPER_PCIE_VALID_VERSION)
+		printk("%s""version: %d.%d\n", pfx,
+		       pcie->version.major, pcie->version.minor);
+	if (pcie->validation_bits & CPER_PCIE_VALID_COMMAND_STATUS)
+		printk("%s""command: 0x%04x, status: 0x%04x\n", pfx,
+		       pcie->command, pcie->status);
+	if (pcie->validation_bits & CPER_PCIE_VALID_DEVICE_ID) {
+		const __u8 *p;
+		printk("%s""device_id: %04x:%02x:%02x.%x\n", pfx,
+		       pcie->device_id.segment, pcie->device_id.bus,
+		       pcie->device_id.device, pcie->device_id.function);
+		printk("%s""slot: %d\n", pfx,
+		       pcie->device_id.slot >> CPER_PCIE_SLOT_SHIFT);
+		printk("%s""secondary_bus: 0x%02x\n", pfx,
+		       pcie->device_id.secondary_bus);
+		printk("%s""vendor_id: 0x%04x, device_id: 0x%04x\n", pfx,
+		       pcie->device_id.vendor_id, pcie->device_id.device_id);
+		p = pcie->device_id.class_code;
+		printk("%s""class_code: %02x%02x%02x\n", pfx, p[0], p[1], p[2]);
+	}
+	if (pcie->validation_bits & CPER_PCIE_VALID_SERIAL_NUMBER)
+		printk("%s""serial number: 0x%04x, 0x%04x\n", pfx,
+		       pcie->serial_number.lower, pcie->serial_number.upper);
+	if (pcie->validation_bits & CPER_PCIE_VALID_BRIDGE_CONTROL_STATUS)
+		printk(
+	"%s""bridge: secondary_status: 0x%04x, control: 0x%04x\n",
+	pfx, pcie->bridge.secondary_status, pcie->bridge.control);
+}
+
+static void cper_estatus_print_section(
+	const char *pfx, const struct acpi_generic_data *gdata, int sec_no)
+{
+	uuid_le *sec_type = (uuid_le *)gdata->section_type;
+	__u16 severity;
+	char newpfx[64];
+
+	severity = gdata->error_severity;
+	printk("%s""Error %d, type: %s\n", pfx, sec_no,
+	       cper_severity_str(severity));
+	if (gdata->validation_bits & CPER_SEC_VALID_FRU_ID)
+		printk("%s""fru_id: %pUl\n", pfx, (uuid_le *)gdata->fru_id);
+	if (gdata->validation_bits & CPER_SEC_VALID_FRU_TEXT)
+		printk("%s""fru_text: %.20s\n", pfx, gdata->fru_text);
+
+	snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP);
+	if (!uuid_le_cmp(*sec_type, CPER_SEC_PROC_GENERIC)) {
+		struct cper_sec_proc_generic *proc_err = (void *)(gdata + 1);
+		printk("%s""section_type: general processor error\n", newpfx);
+		if (gdata->error_data_length >= sizeof(*proc_err))
+			cper_print_proc_generic(newpfx, proc_err);
+		else
+			goto err_section_too_small;
+	} else if (!uuid_le_cmp(*sec_type, CPER_SEC_PLATFORM_MEM)) {
+		struct cper_sec_mem_err *mem_err = (void *)(gdata + 1);
+		printk("%s""section_type: memory error\n", newpfx);
+		if (gdata->error_data_length >= sizeof(*mem_err))
+			cper_print_mem(newpfx, mem_err);
+		else
+			goto err_section_too_small;
+	} else if (!uuid_le_cmp(*sec_type, CPER_SEC_PCIE)) {
+		struct cper_sec_pcie *pcie = (void *)(gdata + 1);
+		printk("%s""section_type: PCIe error\n", newpfx);
+		if (gdata->error_data_length >= sizeof(*pcie))
+			cper_print_pcie(newpfx, pcie, gdata);
+		else
+			goto err_section_too_small;
+	} else
+		printk("%s""section type: unknown, %pUl\n", newpfx, sec_type);
+
+	return;
+
+err_section_too_small:
+	pr_err(FW_WARN "error section length is too small\n");
+}
+
+void cper_estatus_print(const char *pfx,
+			const struct acpi_generic_status *estatus)
+{
+	struct acpi_generic_data *gdata;
+	unsigned int data_len, gedata_len;
+	int sec_no = 0;
+	char newpfx[64];
+	__u16 severity;
+
+	severity = estatus->error_severity;
+	if (severity == CPER_SEV_CORRECTED)
+		printk("%s%s\n", pfx,
+		       "It has been corrected by h/w "
+		       "and requires no further action");
+	printk("%s""event severity: %s\n", pfx, cper_severity_str(severity));
+	data_len = estatus->data_length;
+	gdata = (struct acpi_generic_data *)(estatus + 1);
+	snprintf(newpfx, sizeof(newpfx), "%s%s", pfx, INDENT_SP);
+	while (data_len >= sizeof(*gdata)) {
+		gedata_len = gdata->error_data_length;
+		cper_estatus_print_section(newpfx, gdata, sec_no);
+		data_len -= gedata_len + sizeof(*gdata);
+		gdata = (void *)(gdata + 1) + gedata_len;
+		sec_no++;
+	}
+}
+EXPORT_SYMBOL_GPL(cper_estatus_print);
+
+int cper_estatus_check_header(const struct acpi_generic_status *estatus)
+{
+	if (estatus->data_length &&
+	    estatus->data_length < sizeof(struct acpi_generic_data))
+		return -EINVAL;
+	if (estatus->raw_data_length &&
+	    estatus->raw_data_offset < sizeof(*estatus) + estatus->data_length)
+		return -EINVAL;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(cper_estatus_check_header);
+
+int cper_estatus_check(const struct acpi_generic_status *estatus)
+{
+	struct acpi_generic_data *gdata;
+	unsigned int data_len, gedata_len;
+	int rc;
+
+	rc = cper_estatus_check_header(estatus);
+	if (rc)
+		return rc;
+	data_len = estatus->data_length;
+	gdata = (struct acpi_generic_data *)(estatus + 1);
+	while (data_len >= sizeof(*gdata)) {
+		gedata_len = gdata->error_data_length;
+		if (gedata_len > data_len - sizeof(*gdata))
+			return -EINVAL;
+		data_len -= gedata_len + sizeof(*gdata);
+		gdata = (void *)(gdata + 1) + gedata_len;
+	}
+	if (data_len)
+		return -EINVAL;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(cper_estatus_check);
-- 
cgit 


From 5d0f801a2ccec3b1fdabc3392c8d99ed0413d216 Mon Sep 17 00:00:00 2001
From: Markus Pargmann <mpa@pengutronix.de>
Date: Mon, 28 Oct 2013 09:54:40 +0100
Subject: can: c_can: Fix RX message handling, handle lost message before EOB

If we handle end of block messages with higher priority than a lost message,
we can run into an endless interrupt loop.

This is reproducable with a am335x processor and "cansequence -r" at 1Mbit.
As soon as we loose a packet we can't escape from an interrupt loop.

This patch fixes the problem by handling lost packets before EOB packets.

Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/c_can/c_can.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c
index a668cd491cb3..e3fc07cf2f62 100644
--- a/drivers/net/can/c_can/c_can.c
+++ b/drivers/net/can/c_can/c_can.c
@@ -814,9 +814,6 @@ static int c_can_do_rx_poll(struct net_device *dev, int quota)
 			msg_ctrl_save = priv->read_reg(priv,
 					C_CAN_IFACE(MSGCTRL_REG, 0));
 
-			if (msg_ctrl_save & IF_MCONT_EOB)
-				return num_rx_pkts;
-
 			if (msg_ctrl_save & IF_MCONT_MSGLST) {
 				c_can_handle_lost_msg_obj(dev, 0, msg_obj);
 				num_rx_pkts++;
@@ -824,6 +821,9 @@ static int c_can_do_rx_poll(struct net_device *dev, int quota)
 				continue;
 			}
 
+			if (msg_ctrl_save & IF_MCONT_EOB)
+				return num_rx_pkts;
+
 			if (!(msg_ctrl_save & IF_MCONT_NEWDAT))
 				continue;
 
-- 
cgit 


From 896e23bd04ea50a146dffd342e2f96180f0812a5 Mon Sep 17 00:00:00 2001
From: Olivier Sobrie <olivier@sobrie.be>
Date: Sun, 27 Oct 2013 22:07:53 +0100
Subject: can: kvaser_usb: fix usb endpoints detection

Some devices, like the Kvaser Memorator Professional, have several bulk in
endpoints. Only the first one found must be used by the driver. The same holds
for the bulk out endpoint. The official Kvaser driver (leaf) was used as
reference for this patch.

Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Olivier Sobrie <olivier@sobrie.be>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/usb/kvaser_usb.c | 20 +++++++++++++-------
 1 file changed, 13 insertions(+), 7 deletions(-)

diff --git a/drivers/net/can/usb/kvaser_usb.c b/drivers/net/can/usb/kvaser_usb.c
index 3b9546588240..4b2d5ed62b11 100644
--- a/drivers/net/can/usb/kvaser_usb.c
+++ b/drivers/net/can/usb/kvaser_usb.c
@@ -1544,9 +1544,9 @@ static int kvaser_usb_init_one(struct usb_interface *intf,
 	return 0;
 }
 
-static void kvaser_usb_get_endpoints(const struct usb_interface *intf,
-				     struct usb_endpoint_descriptor **in,
-				     struct usb_endpoint_descriptor **out)
+static int kvaser_usb_get_endpoints(const struct usb_interface *intf,
+				    struct usb_endpoint_descriptor **in,
+				    struct usb_endpoint_descriptor **out)
 {
 	const struct usb_host_interface *iface_desc;
 	struct usb_endpoint_descriptor *endpoint;
@@ -1557,12 +1557,18 @@ static void kvaser_usb_get_endpoints(const struct usb_interface *intf,
 	for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
 		endpoint = &iface_desc->endpoint[i].desc;
 
-		if (usb_endpoint_is_bulk_in(endpoint))
+		if (!*in && usb_endpoint_is_bulk_in(endpoint))
 			*in = endpoint;
 
-		if (usb_endpoint_is_bulk_out(endpoint))
+		if (!*out && usb_endpoint_is_bulk_out(endpoint))
 			*out = endpoint;
+
+		/* use first bulk endpoint for in and out */
+		if (*in && *out)
+			return 0;
 	}
+
+	return -ENODEV;
 }
 
 static int kvaser_usb_probe(struct usb_interface *intf,
@@ -1576,8 +1582,8 @@ static int kvaser_usb_probe(struct usb_interface *intf,
 	if (!dev)
 		return -ENOMEM;
 
-	kvaser_usb_get_endpoints(intf, &dev->bulk_in, &dev->bulk_out);
-	if (!dev->bulk_in || !dev->bulk_out) {
+	err = kvaser_usb_get_endpoints(intf, &dev->bulk_in, &dev->bulk_out);
+	if (err) {
 		dev_err(&intf->dev, "Cannot get usb endpoint(s)");
 		return err;
 	}
-- 
cgit 


From 1ce0aa802c4cbe6dfe2c7fa95c839d75a509c9a5 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Thu, 31 Oct 2013 20:37:15 +0100
Subject: jbd: Revert "jbd: remove dependency on __GFP_NOFAIL"

This reverts commit 05713082ab7690a2b22b044cfc867f346c39cd2d. The idea
to remove __GFP_NOFAIL was opposed by Andrew Morton. Although mm guys do
want to get rid of __GFP_NOFAIL users, opencoding the allocation retry
is even worse.

See emails following
http://www.gossamer-threads.com/lists/linux/kernel/1809153#1809153

Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/jbd/transaction.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
index be0c39b66fe0..aa603e017d22 100644
--- a/fs/jbd/transaction.c
+++ b/fs/jbd/transaction.c
@@ -26,7 +26,6 @@
 #include <linux/mm.h>
 #include <linux/highmem.h>
 #include <linux/hrtimer.h>
-#include <linux/backing-dev.h>
 
 static void __journal_temp_unlink_buffer(struct journal_head *jh);
 
@@ -100,10 +99,11 @@ static int start_this_handle(journal_t *journal, handle_t *handle)
 
 alloc_transaction:
 	if (!journal->j_running_transaction) {
-		new_transaction = kzalloc(sizeof(*new_transaction), GFP_NOFS);
+		new_transaction = kzalloc(sizeof(*new_transaction),
+						GFP_NOFS|__GFP_NOFAIL);
 		if (!new_transaction) {
-			congestion_wait(BLK_RW_ASYNC, HZ/50);
-			goto alloc_transaction;
+			ret = -ENOMEM;
+			goto out;
 		}
 	}
 
-- 
cgit 


From 51b2f451b50faa63fa5b32f4b7309878be235095 Mon Sep 17 00:00:00 2001
From: Oliver Hartkopp <socketcan@hartkopp.net>
Date: Sat, 19 Oct 2013 12:18:56 +0200
Subject: can: add broadcast manager documentation

This patch adds documentation about the broadcast manager. It's based on Brian
Thorne's initial patch http://marc.info/?l=linux-can&m=138119382015496&w=2 and
Daniele Venzano's work http://brownhat.org/docs/socketcan.html .

Signed-off-by: Brian Thorne <hardbyte@gmail.com>
Cc: Daniele Venzano <linux@brownhat.org>
Cc: Andre Naujoks <nautsch2@gmail.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 Documentation/networking/can.txt | 217 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 217 insertions(+)

diff --git a/Documentation/networking/can.txt b/Documentation/networking/can.txt
index 820f55344edc..4c072414eadb 100644
--- a/Documentation/networking/can.txt
+++ b/Documentation/networking/can.txt
@@ -25,6 +25,12 @@ This file contains
       4.1.5 RAW socket option CAN_RAW_FD_FRAMES
       4.1.6 RAW socket returned message flags
     4.2 Broadcast Manager protocol sockets (SOCK_DGRAM)
+      4.2.1 Broadcast Manager operations
+      4.2.2 Broadcast Manager message flags
+      4.2.3 Broadcast Manager transmission timers
+      4.2.4 Broadcast Manager message sequence transmission
+      4.2.5 Broadcast Manager receive filter timers
+      4.2.6 Broadcast Manager multiplex message receive filter
     4.3 connected transport protocols (SOCK_SEQPACKET)
     4.4 unconnected transport protocols (SOCK_DGRAM)
 
@@ -593,6 +599,217 @@ solution for a couple of reasons:
       In order to receive such messages, CAN_RAW_RECV_OWN_MSGS must be set.
 
   4.2 Broadcast Manager protocol sockets (SOCK_DGRAM)
+
+  The Broadcast Manager protocol provides a command based configuration
+  interface to filter and send (e.g. cyclic) CAN messages in kernel space.
+
+  Receive filters can be used to down sample frequent messages; detect events
+  such as message contents changes, packet length changes, and do time-out
+  monitoring of received messages.
+
+  Periodic transmission tasks of CAN frames or a sequence of CAN frames can be
+  created and modified at runtime; both the message content and the two
+  possible transmit intervals can be altered.
+
+  A BCM socket is not intended for sending individual CAN frames using the
+  struct can_frame as known from the CAN_RAW socket. Instead a special BCM
+  configuration message is defined. The basic BCM configuration message used
+  to communicate with the broadcast manager and the available operations are
+  defined in the linux/can/bcm.h include. The BCM message consists of a
+  message header with a command ('opcode') followed by zero or more CAN frames.
+  The broadcast manager sends responses to user space in the same form:
+
+    struct bcm_msg_head {
+            __u32 opcode;                   /* command */
+            __u32 flags;                    /* special flags */
+            __u32 count;                    /* run 'count' times with ival1 */
+            struct timeval ival1, ival2;    /* count and subsequent interval */
+            canid_t can_id;                 /* unique can_id for task */
+            __u32 nframes;                  /* number of can_frames following */
+            struct can_frame frames[0];
+    };
+
+  The aligned payload 'frames' uses the same basic CAN frame structure defined
+  at the beginning of section 4 and in the include/linux/can.h include. All
+  messages to the broadcast manager from user space have this structure.
+
+  Note a CAN_BCM socket must be connected instead of bound after socket
+  creation (example without error checking):
+
+    int s;
+    struct sockaddr_can addr;
+    struct ifreq ifr;
+
+    s = socket(PF_CAN, SOCK_DGRAM, CAN_BCM);
+
+    strcpy(ifr.ifr_name, "can0");
+    ioctl(s, SIOCGIFINDEX, &ifr);
+
+    addr.can_family = AF_CAN;
+    addr.can_ifindex = ifr.ifr_ifindex;
+
+    connect(s, (struct sockaddr *)&addr, sizeof(addr))
+
+    (..)
+
+  The broadcast manager socket is able to handle any number of in flight
+  transmissions or receive filters concurrently. The different RX/TX jobs are
+  distinguished by the unique can_id in each BCM message. However additional
+  CAN_BCM sockets are recommended to communicate on multiple CAN interfaces.
+  When the broadcast manager socket is bound to 'any' CAN interface (=> the
+  interface index is set to zero) the configured receive filters apply to any
+  CAN interface unless the sendto() syscall is used to overrule the 'any' CAN
+  interface index. When using recvfrom() instead of read() to retrieve BCM
+  socket messages the originating CAN interface is provided in can_ifindex.
+
+  4.2.1 Broadcast Manager operations
+
+  The opcode defines the operation for the broadcast manager to carry out,
+  or details the broadcast managers response to several events, including
+  user requests.
+
+  Transmit Operations (user space to broadcast manager):
+
+    TX_SETUP:   Create (cyclic) transmission task.
+
+    TX_DELETE:  Remove (cyclic) transmission task, requires only can_id.
+
+    TX_READ:    Read properties of (cyclic) transmission task for can_id.
+
+    TX_SEND:    Send one CAN frame.
+
+  Transmit Responses (broadcast manager to user space):
+
+    TX_STATUS:  Reply to TX_READ request (transmission task configuration).
+
+    TX_EXPIRED: Notification when counter finishes sending at initial interval
+      'ival1'. Requires the TX_COUNTEVT flag to be set at TX_SETUP.
+
+  Receive Operations (user space to broadcast manager):
+
+    RX_SETUP:   Create RX content filter subscription.
+
+    RX_DELETE:  Remove RX content filter subscription, requires only can_id.
+
+    RX_READ:    Read properties of RX content filter subscription for can_id.
+
+  Receive Responses (broadcast manager to user space):
+
+    RX_STATUS:  Reply to RX_READ request (filter task configuration).
+
+    RX_TIMEOUT: Cyclic message is detected to be absent (timer ival1 expired).
+
+    RX_CHANGED: BCM message with updated CAN frame (detected content change).
+      Sent on first message received or on receipt of revised CAN messages.
+
+  4.2.2 Broadcast Manager message flags
+
+  When sending a message to the broadcast manager the 'flags' element may
+  contain the following flag definitions which influence the behaviour:
+
+    SETTIMER:           Set the values of ival1, ival2 and count
+
+    STARTTIMER:         Start the timer with the actual values of ival1, ival2
+      and count. Starting the timer leads simultaneously to emit a CAN frame.
+
+    TX_COUNTEVT:        Create the message TX_EXPIRED when count expires
+
+    TX_ANNOUNCE:        A change of data by the process is emitted immediately.
+
+    TX_CP_CAN_ID:       Copies the can_id from the message header to each
+      subsequent frame in frames. This is intended as usage simplification. For
+      TX tasks the unique can_id from the message header may differ from the
+      can_id(s) stored for transmission in the subsequent struct can_frame(s).
+
+    RX_FILTER_ID:       Filter by can_id alone, no frames required (nframes=0).
+
+    RX_CHECK_DLC:       A change of the DLC leads to an RX_CHANGED.
+
+    RX_NO_AUTOTIMER:    Prevent automatically starting the timeout monitor.
+
+    RX_ANNOUNCE_RESUME: If passed at RX_SETUP and a receive timeout occured, a
+      RX_CHANGED message will be generated when the (cyclic) receive restarts.
+
+    TX_RESET_MULTI_IDX: Reset the index for the multiple frame transmission.
+
+    RX_RTR_FRAME:       Send reply for RTR-request (placed in op->frames[0]).
+
+  4.2.3 Broadcast Manager transmission timers
+
+  Periodic transmission configurations may use up to two interval timers.
+  In this case the BCM sends a number of messages ('count') at an interval
+  'ival1', then continuing to send at another given interval 'ival2'. When
+  only one timer is needed 'count' is set to zero and only 'ival2' is used.
+  When SET_TIMER and START_TIMER flag were set the timers are activated.
+  The timer values can be altered at runtime when only SET_TIMER is set.
+
+  4.2.4 Broadcast Manager message sequence transmission
+
+  Up to 256 CAN frames can be transmitted in a sequence in the case of a cyclic
+  TX task configuration. The number of CAN frames is provided in the 'nframes'
+  element of the BCM message head. The defined number of CAN frames are added
+  as array to the TX_SETUP BCM configuration message.
+
+    /* create a struct to set up a sequence of four CAN frames */
+    struct {
+            struct bcm_msg_head msg_head;
+            struct can_frame frame[4];
+    } mytxmsg;
+
+    (..)
+    mytxmsg.nframes = 4;
+    (..)
+
+    write(s, &mytxmsg, sizeof(mytxmsg));
+
+  With every transmission the index in the array of CAN frames is increased
+  and set to zero at index overflow.
+
+  4.2.5 Broadcast Manager receive filter timers
+
+  The timer values ival1 or ival2 may be set to non-zero values at RX_SETUP.
+  When the SET_TIMER flag is set the timers are enabled:
+
+  ival1: Send RX_TIMEOUT when a received message is not received again within
+    the given time. When START_TIMER is set at RX_SETUP the timeout detection
+    is activated directly - even without a former CAN frame reception.
+
+  ival2: Throttle the received message rate down to the value of ival2. This
+    is useful to reduce messages for the application when the signal inside the
+    CAN frame is stateless as state changes within the ival2 periode may get
+    lost.
+
+  4.2.6 Broadcast Manager multiplex message receive filter
+
+  To filter for content changes in multiplex message sequences an array of more
+  than one CAN frames can be passed in a RX_SETUP configuration message. The
+  data bytes of the first CAN frame contain the mask of relevant bits that
+  have to match in the subsequent CAN frames with the received CAN frame.
+  If one of the subsequent CAN frames is matching the bits in that frame data
+  mark the relevant content to be compared with the previous received content.
+  Up to 257 CAN frames (multiplex filter bit mask CAN frame plus 256 CAN
+  filters) can be added as array to the TX_SETUP BCM configuration message.
+
+    /* usually used to clear CAN frame data[] - beware of endian problems! */
+    #define U64_DATA(p) (*(unsigned long long*)(p)->data)
+
+    struct {
+            struct bcm_msg_head msg_head;
+            struct can_frame frame[5];
+    } msg;
+
+    msg.msg_head.opcode  = RX_SETUP;
+    msg.msg_head.can_id  = 0x42;
+    msg.msg_head.flags   = 0;
+    msg.msg_head.nframes = 5;
+    U64_DATA(&msg.frame[0]) = 0xFF00000000000000ULL; /* MUX mask */
+    U64_DATA(&msg.frame[1]) = 0x01000000000000FFULL; /* data mask (MUX 0x01) */
+    U64_DATA(&msg.frame[2]) = 0x0200FFFF000000FFULL; /* data mask (MUX 0x02) */
+    U64_DATA(&msg.frame[3]) = 0x330000FFFFFF0003ULL; /* data mask (MUX 0x33) */
+    U64_DATA(&msg.frame[4]) = 0x4F07FC0FF0000000ULL; /* data mask (MUX 0x4F) */
+
+    write(s, &msg, sizeof(msg));
+
   4.3 connected transport protocols (SOCK_SEQPACKET)
   4.4 unconnected transport protocols (SOCK_DGRAM)
 
-- 
cgit 


From c13c64d8d7c0b6457aeb9aed8647714a50786c62 Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Sat, 5 Oct 2013 20:34:47 +0200
Subject: can: dev: sort can_get_size() by IFLA_CAN_*

This patch sorts the individual addends of the sum by IFLA_CAN_*.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/dev.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
index 1870c4731a57..19ebab085156 100644
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -702,17 +702,17 @@ static int can_changelink(struct net_device *dev,
 static size_t can_get_size(const struct net_device *dev)
 {
 	struct can_priv *priv = netdev_priv(dev);
-	size_t size;
-
-	size = nla_total_size(sizeof(u32));   /* IFLA_CAN_STATE */
-	size += nla_total_size(sizeof(struct can_ctrlmode));  /* IFLA_CAN_CTRLMODE */
-	size += nla_total_size(sizeof(u32));  /* IFLA_CAN_RESTART_MS */
-	size += nla_total_size(sizeof(struct can_bittiming)); /* IFLA_CAN_BITTIMING */
-	size += nla_total_size(sizeof(struct can_clock));     /* IFLA_CAN_CLOCK */
-	if (priv->do_get_berr_counter)        /* IFLA_CAN_BERR_COUNTER */
-		size += nla_total_size(sizeof(struct can_berr_counter));
-	if (priv->bittiming_const)	      /* IFLA_CAN_BITTIMING_CONST */
+	size_t size = 0;
+
+	size += nla_total_size(sizeof(struct can_bittiming));	/* IFLA_CAN_BITTIMING */
+	if (priv->bittiming_const)				/* IFLA_CAN_BITTIMING_CONST */
 		size += nla_total_size(sizeof(struct can_bittiming_const));
+	size += nla_total_size(sizeof(struct can_clock));	/* IFLA_CAN_CLOCK */
+	size += nla_total_size(sizeof(u32));			/* IFLA_CAN_STATE */
+	size += nla_total_size(sizeof(struct can_ctrlmode));	/* IFLA_CAN_CTRLMODE */
+	size += nla_total_size(sizeof(u32));			/* IFLA_CAN_RESTART_MS */
+	if (priv->do_get_berr_counter)				/* IFLA_CAN_BERR_COUNTER */
+		size += nla_total_size(sizeof(struct can_berr_counter));
 
 	return size;
 }
-- 
cgit 


From 57a59b9ef58f3422f9d9f2cf7631da1727686991 Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Fri, 4 Oct 2013 13:35:57 +0200
Subject: can: dev: sort can_fill_info() by IFLA_CAN_*

This patch sorts the call to nla_put() by IFLA_CAN_*.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/dev.c | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
index 19ebab085156..8d6f7212ae22 100644
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -726,23 +726,20 @@ static int can_fill_info(struct sk_buff *skb, const struct net_device *dev)
 
 	if (priv->do_get_state)
 		priv->do_get_state(dev, &state);
-	if (nla_put_u32(skb, IFLA_CAN_STATE, state) ||
-	    nla_put(skb, IFLA_CAN_CTRLMODE, sizeof(cm), &cm) ||
-	    nla_put_u32(skb, IFLA_CAN_RESTART_MS, priv->restart_ms) ||
-	    nla_put(skb, IFLA_CAN_BITTIMING,
+	if (nla_put(skb, IFLA_CAN_BITTIMING,
 		    sizeof(priv->bittiming), &priv->bittiming) ||
+	    (priv->bittiming_const &&
+	     nla_put(skb, IFLA_CAN_BITTIMING_CONST,
+		     sizeof(*priv->bittiming_const), priv->bittiming_const)) ||
 	    nla_put(skb, IFLA_CAN_CLOCK, sizeof(cm), &priv->clock) ||
+	    nla_put_u32(skb, IFLA_CAN_STATE, state) ||
+	    nla_put(skb, IFLA_CAN_CTRLMODE, sizeof(cm), &cm) ||
+	    nla_put_u32(skb, IFLA_CAN_RESTART_MS, priv->restart_ms) ||
 	    (priv->do_get_berr_counter &&
 	     !priv->do_get_berr_counter(dev, &bec) &&
-	     nla_put(skb, IFLA_CAN_BERR_COUNTER, sizeof(bec), &bec)) ||
-	    (priv->bittiming_const &&
-	     nla_put(skb, IFLA_CAN_BITTIMING_CONST,
-		     sizeof(*priv->bittiming_const), priv->bittiming_const)))
-		goto nla_put_failure;
+	     nla_put(skb, IFLA_CAN_BERR_COUNTER, sizeof(bec), &bec)))
+		return -EMSGSIZE;
 	return 0;
-
-nla_put_failure:
-	return -EMSGSIZE;
 }
 
 static size_t can_get_xstats_size(const struct net_device *dev)
-- 
cgit 


From 49cb5c0e0cb26e9f39445d8b5aa5c50ba9451cdd Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Fri, 4 Oct 2013 15:40:22 +0200
Subject: can: dev: sort can_changelink() by IFLA_CAN_*

This patch sorts the handling of data[IFLA_CAN_*] by IFLA_CAN_*.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/dev.c | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
index 8d6f7212ae22..bda1888cae9a 100644
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -645,19 +645,6 @@ static int can_changelink(struct net_device *dev,
 	/* We need synchronization with dev->stop() */
 	ASSERT_RTNL();
 
-	if (data[IFLA_CAN_CTRLMODE]) {
-		struct can_ctrlmode *cm;
-
-		/* Do not allow changing controller mode while running */
-		if (dev->flags & IFF_UP)
-			return -EBUSY;
-		cm = nla_data(data[IFLA_CAN_CTRLMODE]);
-		if (cm->flags & ~priv->ctrlmode_supported)
-			return -EOPNOTSUPP;
-		priv->ctrlmode &= ~cm->mask;
-		priv->ctrlmode |= cm->flags;
-	}
-
 	if (data[IFLA_CAN_BITTIMING]) {
 		struct can_bittiming bt;
 
@@ -680,6 +667,19 @@ static int can_changelink(struct net_device *dev,
 		}
 	}
 
+	if (data[IFLA_CAN_CTRLMODE]) {
+		struct can_ctrlmode *cm;
+
+		/* Do not allow changing controller mode while running */
+		if (dev->flags & IFF_UP)
+			return -EBUSY;
+		cm = nla_data(data[IFLA_CAN_CTRLMODE]);
+		if (cm->flags & ~priv->ctrlmode_supported)
+			return -EOPNOTSUPP;
+		priv->ctrlmode &= ~cm->mask;
+		priv->ctrlmode |= cm->flags;
+	}
+
 	if (data[IFLA_CAN_RESTART_MS]) {
 		/* Do not allow changing restart delay while running */
 		if (dev->flags & IFF_UP)
-- 
cgit 


From 26896fd98130cdda73b19c75849a0d25cb850cb8 Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Fri, 4 Oct 2013 13:18:01 +0200
Subject: can: ti_hecc: remove priv->can.do_get_state() callback

This patch removes the priv->can.do_get_state() callback, as it just returns
priv->can.state. The callback's only user can_fill_info() has direct access to
priv->can.state.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/ti_hecc.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c
index beb5ef834f0f..60d95b44d0f7 100644
--- a/drivers/net/can/ti_hecc.c
+++ b/drivers/net/can/ti_hecc.c
@@ -286,15 +286,6 @@ static inline u32 hecc_get_bit(struct ti_hecc_priv *priv, int reg, u32 bit_mask)
 	return (hecc_read(priv, reg) & bit_mask) ? 1 : 0;
 }
 
-static int ti_hecc_get_state(const struct net_device *ndev,
-	enum can_state *state)
-{
-	struct ti_hecc_priv *priv = netdev_priv(ndev);
-
-	*state = priv->can.state;
-	return 0;
-}
-
 static int ti_hecc_set_btc(struct ti_hecc_priv *priv)
 {
 	struct can_bittiming *bit_timing = &priv->can.bittiming;
@@ -940,7 +931,6 @@ static int ti_hecc_probe(struct platform_device *pdev)
 
 	priv->can.bittiming_const = &ti_hecc_bittiming_const;
 	priv->can.do_set_mode = ti_hecc_do_set_mode;
-	priv->can.do_get_state = ti_hecc_get_state;
 	priv->can.do_get_berr_counter = ti_hecc_get_berr_counter;
 	priv->can.ctrlmode_supported = CAN_CTRLMODE_3_SAMPLES;
 
-- 
cgit 


From 2acdb92e85412bf791a3c01f2173695b6e0a3f72 Mon Sep 17 00:00:00 2001
From: Alexandre Rames <arames@solarflare.com>
Date: Thu, 31 Oct 2013 12:42:32 +0000
Subject: sfc: Fix DMA unmapping issue with firmware assisted TSO

When using firmware assisted TSO, we use a single DMA mapping for
the linear area of a TSO skb.

We still have to segment the super-packet and insert a descriptor
containing the original headers before each segment of payload, so we
can unmap the linear area only after the last segment is completed.
The unmapping information for the linear area is therefore associated
with the last header descriptor.

We calculate the DMA address to unmap from using the map length and
the invariant that the end of the DMA mapping matches the end of
the data referenced by the last descriptor.  But this invariant is
broken when there is TCP payload in the linear area.

Fix this by adding and using an explicit dma_offset field.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
---
 drivers/net/ethernet/sfc/net_driver.h | 3 +++
 drivers/net/ethernet/sfc/tx.c         | 7 +++++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/sfc/net_driver.h b/drivers/net/ethernet/sfc/net_driver.h
index aac22a1e85b8..b14a717ac3e8 100644
--- a/drivers/net/ethernet/sfc/net_driver.h
+++ b/drivers/net/ethernet/sfc/net_driver.h
@@ -141,6 +141,8 @@ struct efx_special_buffer {
  * @len: Length of this fragment.
  *	This field is zero when the queue slot is empty.
  * @unmap_len: Length of this fragment to unmap
+ * @dma_offset: Offset of @dma_addr from the address of the backing DMA mapping.
+ * Only valid if @unmap_len != 0.
  */
 struct efx_tx_buffer {
 	union {
@@ -154,6 +156,7 @@ struct efx_tx_buffer {
 	unsigned short flags;
 	unsigned short len;
 	unsigned short unmap_len;
+	unsigned short dma_offset;
 };
 #define EFX_TX_BUF_CONT		1	/* not last descriptor of packet */
 #define EFX_TX_BUF_SKB		2	/* buffer is last part of skb */
diff --git a/drivers/net/ethernet/sfc/tx.c b/drivers/net/ethernet/sfc/tx.c
index 282692c48e6b..c49d1fb16965 100644
--- a/drivers/net/ethernet/sfc/tx.c
+++ b/drivers/net/ethernet/sfc/tx.c
@@ -65,8 +65,7 @@ static void efx_dequeue_buffer(struct efx_tx_queue *tx_queue,
 {
 	if (buffer->unmap_len) {
 		struct device *dma_dev = &tx_queue->efx->pci_dev->dev;
-		dma_addr_t unmap_addr = (buffer->dma_addr + buffer->len -
-					 buffer->unmap_len);
+		dma_addr_t unmap_addr = buffer->dma_addr - buffer->dma_offset;
 		if (buffer->flags & EFX_TX_BUF_MAP_SINGLE)
 			dma_unmap_single(dma_dev, unmap_addr, buffer->unmap_len,
 					 DMA_TO_DEVICE);
@@ -414,6 +413,7 @@ netdev_tx_t efx_enqueue_skb(struct efx_tx_queue *tx_queue, struct sk_buff *skb)
 		/* Transfer ownership of the unmapping to the final buffer */
 		buffer->flags = EFX_TX_BUF_CONT | dma_flags;
 		buffer->unmap_len = unmap_len;
+		buffer->dma_offset = buffer->dma_addr - unmap_addr;
 		unmap_len = 0;
 
 		/* Get address and size of next fragment */
@@ -980,6 +980,7 @@ static int efx_tso_put_header(struct efx_tx_queue *tx_queue,
 			return -ENOMEM;
 		}
 		buffer->unmap_len = buffer->len;
+		buffer->dma_offset = 0;
 		buffer->flags |= EFX_TX_BUF_MAP_SINGLE;
 	}
 
@@ -1121,6 +1122,7 @@ static void tso_fill_packet_with_fragment(struct efx_tx_queue *tx_queue,
 	if (st->in_len == 0) {
 		/* Transfer ownership of the DMA mapping */
 		buffer->unmap_len = st->unmap_len;
+		buffer->dma_offset = buffer->unmap_len - buffer->len;
 		buffer->flags |= st->dma_flags;
 		st->unmap_len = 0;
 	}
@@ -1219,6 +1221,7 @@ static int tso_start_new_packet(struct efx_tx_queue *tx_queue,
 		if (is_last) {
 			buffer->flags = EFX_TX_BUF_CONT | EFX_TX_BUF_MAP_SINGLE;
 			buffer->unmap_len = st->header_unmap_len;
+			buffer->dma_offset = 0;
 			/* Ensure we only unmap them once in case of a
 			 * later DMA mapping error and rollback
 			 */
-- 
cgit 


From 98f73630f96f1a6d8c845b8b3e5f9ae532cf82d1 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Thu, 31 Oct 2013 11:19:42 +0100
Subject: KVM: x86: emulate SAHF instruction

Yet another instruction that we fail to emulate, this time found
in Windows 2008R2 32-bit.

Reviewed-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/emulate.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 8e2a07bd8eac..16c037e7db7d 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -3296,6 +3296,18 @@ static int em_cpuid(struct x86_emulate_ctxt *ctxt)
 	return X86EMUL_CONTINUE;
 }
 
+static int em_sahf(struct x86_emulate_ctxt *ctxt)
+{
+	u32 flags;
+
+	flags = EFLG_CF | EFLG_PF | EFLG_AF | EFLG_ZF | EFLG_SF;
+	flags &= *reg_rmw(ctxt, VCPU_REGS_RAX) >> 8;
+
+	ctxt->eflags &= ~0xffUL;
+	ctxt->eflags |= flags | X86_EFLAGS_FIXED;
+	return X86EMUL_CONTINUE;
+}
+
 static int em_lahf(struct x86_emulate_ctxt *ctxt)
 {
 	*reg_rmw(ctxt, VCPU_REGS_RAX) &= ~0xff00UL;
@@ -3790,7 +3802,8 @@ static const struct opcode opcode_table[256] = {
 	D(DstAcc | SrcNone), I(ImplicitOps | SrcAcc, em_cwd),
 	I(SrcImmFAddr | No64, em_call_far), N,
 	II(ImplicitOps | Stack, em_pushf, pushf),
-	II(ImplicitOps | Stack, em_popf, popf), N, I(ImplicitOps, em_lahf),
+	II(ImplicitOps | Stack, em_popf, popf),
+	I(ImplicitOps, em_sahf), I(ImplicitOps, em_lahf),
 	/* 0xA0 - 0xA7 */
 	I2bv(DstAcc | SrcMem | Mov | MemAbs, em_mov),
 	I2bv(DstMem | SrcAcc | Mov | MemAbs | PageTable, em_mov),
-- 
cgit 


From 81e87e26796782e014fd1f2bb9cd8fb6ce4021a8 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Wed, 30 Oct 2013 21:43:01 +0200
Subject: kvm_host: typo fix

fix up typo in comment.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 include/linux/kvm_host.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 92aae88756db..9bb1048d010e 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -804,7 +804,7 @@ static inline void kvm_guest_enter(void)
 
 	/* KVM does not hold any references to rcu protected data when it
 	 * switches CPU into a guest mode. In fact switching to a guest mode
-	 * is very similar to exiting to userspase from rcu point of view. In
+	 * is very similar to exiting to userspace from rcu point of view. In
 	 * addition CPU may stay in a guest mode for quite a long time (up to
 	 * one time slice). Lets treat guest mode as quiescent state, just like
 	 * we do with user-mode execution.
-- 
cgit 


From bb86d21cba22a045b09d11b71decf5ca7c3d5def Mon Sep 17 00:00:00 2001
From: Jie Liu <jeff.liu@oracle.com>
Date: Fri, 25 Oct 2013 14:52:44 +0800
Subject: xfs: fix the extent count when allocating an new indirection array
 entry

At xfs_iext_add(), if extent(s) are being appended to the last page in
the indirection array and the new extent(s) don't fit in the page, the
number of extents(erp->er_extcount) in a new allocated entry should be
the minimum value between count and XFS_LINEAR_EXTS, instead of count.

For now, there is no existing test case can demonstrates a problem with
the er_extcount being set incorrectly here, but it obviously like a bug.

Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_inode_fork.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/fs/xfs/xfs_inode_fork.c b/fs/xfs/xfs_inode_fork.c
index 22c9837c5d4b..cfee14a83cfe 100644
--- a/fs/xfs/xfs_inode_fork.c
+++ b/fs/xfs/xfs_inode_fork.c
@@ -1021,15 +1021,14 @@ xfs_iext_add(
 		 * the next index needed in the indirection array.
 		 */
 		else {
-			int	count = ext_diff;
+			uint	count = ext_diff;
 
 			while (count) {
 				erp = xfs_iext_irec_new(ifp, erp_idx);
-				erp->er_extcount = count;
-				count -= MIN(count, (int)XFS_LINEAR_EXTS);
-				if (count) {
+				erp->er_extcount = min(count, XFS_LINEAR_EXTS);
+				count -= erp->er_extcount;
+				if (count)
 					erp_idx++;
-				}
 			}
 		}
 	}
-- 
cgit 


From 880eef041655b35f9aa488726ea3c4303a4f2204 Mon Sep 17 00:00:00 2001
From: Stratos Karafotis <stratosk@semaphore.gr>
Date: Thu, 31 Oct 2013 20:27:36 +0200
Subject: cpufreq: ondemand: Remove redundant return statement

After commit dfa5bb622555 (cpufreq: ondemand: Change the calculation
of target frequency), this return statement is no longer needed.

Reported-by: Henrik Nilsson <Karl.Henrik.Nilsson@gmail.com>
Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq_ondemand.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/cpufreq/cpufreq_ondemand.c b/drivers/cpufreq/cpufreq_ondemand.c
index 32f26f6e17c5..18d409189092 100644
--- a/drivers/cpufreq/cpufreq_ondemand.c
+++ b/drivers/cpufreq/cpufreq_ondemand.c
@@ -168,7 +168,6 @@ static void od_check_cpu(int cpu, unsigned int load)
 			dbs_info->rate_mult =
 				od_tuners->sampling_down_factor;
 		dbs_freq_increase(policy, policy->max);
-		return;
 	} else {
 		/* Calculate the next frequency proportional to load */
 		unsigned int freq_next;
-- 
cgit 


From bcbc9b0cf6d8f340a1d166e414f4612b353f7a9b Mon Sep 17 00:00:00 2001
From: Mimi Zohar <zohar@linux.vnet.ibm.com>
Date: Tue, 23 Jul 2013 11:15:00 -0400
Subject: ima: extend the measurement list to include the file signature

This patch defines a new template called 'ima-sig', which includes
the file signature in the template data, in addition to the file's
digest and pathname.

A template is composed of a set of fields.  Associated with each
field is an initialization and display function.  This patch defines
a new template field called 'sig', the initialization function
ima_eventsig_init(), and the display function ima_show_template_sig().

This patch modifies the .field_init() function definition to include
the 'security.ima' extended attribute and length.

Changelog:
- remove unused code (Dmitry Kasatkin)
- avoid calling ima_write_template_field_data() unnecesarily (Roberto Sassu)
- rename DATA_FMT_SIG to DATA_FMT_HEX
- cleanup ima_eventsig_init() based on Roberto's comments

Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Dmitry Kasatkin <d.kasatkin@samsung.com>
Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
---
 security/integrity/ima/Kconfig            |  3 +++
 security/integrity/ima/ima.h              | 10 +++++---
 security/integrity/ima/ima_api.c          | 14 ++++++++----
 security/integrity/ima/ima_init.c         |  2 +-
 security/integrity/ima/ima_main.c         |  3 ++-
 security/integrity/ima/ima_template.c     |  3 +++
 security/integrity/ima/ima_template_lib.c | 38 +++++++++++++++++++++++++++++--
 security/integrity/ima/ima_template_lib.h | 12 +++++++++-
 8 files changed, 73 insertions(+), 12 deletions(-)

diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig
index 351a58ed56ab..81a27971d884 100644
--- a/security/integrity/ima/Kconfig
+++ b/security/integrity/ima/Kconfig
@@ -63,6 +63,8 @@ choice
 		bool "ima"
 	config IMA_NG_TEMPLATE
 		bool "ima-ng (default)"
+	config IMA_SIG_TEMPLATE
+		bool "ima-sig"
 endchoice
 
 config IMA_DEFAULT_TEMPLATE
@@ -70,6 +72,7 @@ config IMA_DEFAULT_TEMPLATE
 	depends on IMA
 	default "ima" if IMA_TEMPLATE
 	default "ima-ng" if IMA_NG_TEMPLATE
+	default "ima-sig" if IMA_SIG_TEMPLATE
 
 choice
 	prompt "Default integrity hash algorithm"
diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index 72d013e190b1..bf03c6a16cc8 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -59,7 +59,8 @@ struct ima_template_field {
 	const char field_id[IMA_TEMPLATE_FIELD_ID_MAX_LEN];
 	int (*field_init) (struct integrity_iint_cache *iint, struct file *file,
 			   const unsigned char *filename,
-			   struct ima_field_data *field_data);
+			   struct evm_ima_xattr_data *xattr_value,
+			   int xattr_len, struct ima_field_data *field_data);
 	void (*field_show) (struct seq_file *m, enum ima_show_type show,
 			    struct ima_field_data *field_data);
 };
@@ -134,12 +135,15 @@ int ima_collect_measurement(struct integrity_iint_cache *iint,
 			    struct evm_ima_xattr_data **xattr_value,
 			    int *xattr_len);
 void ima_store_measurement(struct integrity_iint_cache *iint, struct file *file,
-			   const unsigned char *filename);
+			   const unsigned char *filename,
+			   struct evm_ima_xattr_data *xattr_value,
+			   int xattr_len);
 void ima_audit_measurement(struct integrity_iint_cache *iint,
 			   const unsigned char *filename);
 int ima_alloc_init_template(struct integrity_iint_cache *iint,
 			    struct file *file, const unsigned char *filename,
-			    struct ima_template_entry **entry);
+			    struct evm_ima_xattr_data *xattr_value,
+			    int xattr_len, struct ima_template_entry **entry);
 int ima_store_template(struct ima_template_entry *entry, int violation,
 		       struct inode *inode, const unsigned char *filename);
 const char *ima_d_path(struct path *path, char **pathbuf);
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index 5fcc80695d87..0e7540863fc2 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -26,7 +26,8 @@
  */
 int ima_alloc_init_template(struct integrity_iint_cache *iint,
 			    struct file *file, const unsigned char *filename,
-			    struct ima_template_entry **entry)
+			    struct evm_ima_xattr_data *xattr_value,
+			    int xattr_len, struct ima_template_entry **entry)
 {
 	struct ima_template_desc *template_desc = ima_template_desc_current();
 	int i, result = 0;
@@ -41,6 +42,7 @@ int ima_alloc_init_template(struct integrity_iint_cache *iint,
 		u32 len;
 
 		result = field->field_init(iint, file, filename,
+					   xattr_value, xattr_len,
 					   &((*entry)->template_data[i]));
 		if (result != 0)
 			goto out;
@@ -123,7 +125,8 @@ void ima_add_violation(struct file *file, const unsigned char *filename,
 	/* can overflow, only indicator */
 	atomic_long_inc(&ima_htable.violations);
 
-	result = ima_alloc_init_template(NULL, file, filename, &entry);
+	result = ima_alloc_init_template(NULL, file, filename,
+					 NULL, 0, &entry);
 	if (result < 0) {
 		result = -ENOMEM;
 		goto err_out;
@@ -239,7 +242,9 @@ int ima_collect_measurement(struct integrity_iint_cache *iint,
  * Must be called with iint->mutex held.
  */
 void ima_store_measurement(struct integrity_iint_cache *iint,
-			   struct file *file, const unsigned char *filename)
+			   struct file *file, const unsigned char *filename,
+			   struct evm_ima_xattr_data *xattr_value,
+			   int xattr_len)
 {
 	const char *op = "add_template_measure";
 	const char *audit_cause = "ENOMEM";
@@ -251,7 +256,8 @@ void ima_store_measurement(struct integrity_iint_cache *iint,
 	if (iint->flags & IMA_MEASURED)
 		return;
 
-	result = ima_alloc_init_template(iint, file, filename, &entry);
+	result = ima_alloc_init_template(iint, file, filename,
+					 xattr_value, xattr_len, &entry);
 	if (result < 0) {
 		integrity_audit_msg(AUDIT_INTEGRITY_PCR, inode, filename,
 				    op, audit_cause, result, 0);
diff --git a/security/integrity/ima/ima_init.c b/security/integrity/ima/ima_init.c
index f84aec5412f3..15f34bd40abe 100644
--- a/security/integrity/ima/ima_init.c
+++ b/security/integrity/ima/ima_init.c
@@ -69,7 +69,7 @@ static void __init ima_add_boot_aggregate(void)
 	}
 
 	result = ima_alloc_init_template(iint, NULL, boot_aggregate_name,
-					 &entry);
+					 NULL, 0, &entry);
 	if (result < 0)
 		return;
 
diff --git a/security/integrity/ima/ima_main.c b/security/integrity/ima/ima_main.c
index 14d4cb557894..149ee1119f87 100644
--- a/security/integrity/ima/ima_main.c
+++ b/security/integrity/ima/ima_main.c
@@ -225,7 +225,8 @@ static int process_measurement(struct file *file, const char *filename,
 		pathname = (const char *)file->f_dentry->d_name.name;
 
 	if (action & IMA_MEASURE)
-		ima_store_measurement(iint, file, pathname);
+		ima_store_measurement(iint, file, pathname,
+				      xattr_value, xattr_len);
 	if (action & IMA_APPRAISE_SUBMASK)
 		rc = ima_appraise_measurement(_func, iint, file, pathname,
 					      xattr_value, xattr_len);
diff --git a/security/integrity/ima/ima_template.c b/security/integrity/ima/ima_template.c
index 000221419f6c..4e5da990630b 100644
--- a/security/integrity/ima/ima_template.c
+++ b/security/integrity/ima/ima_template.c
@@ -20,6 +20,7 @@
 static struct ima_template_desc defined_templates[] = {
 	{.name = IMA_TEMPLATE_IMA_NAME, .fmt = IMA_TEMPLATE_IMA_FMT},
 	{.name = "ima-ng",.fmt = "d-ng|n-ng"},
+	{.name = "ima-sig",.fmt = "d-ng|n-ng|sig"},
 };
 
 static struct ima_template_field supported_fields[] = {
@@ -31,6 +32,8 @@ static struct ima_template_field supported_fields[] = {
 	 .field_show = ima_show_template_digest_ng},
 	{.field_id = "n-ng",.field_init = ima_eventname_ng_init,
 	 .field_show = ima_show_template_string},
+	{.field_id = "sig",.field_init = ima_eventsig_init,
+	 .field_show = ima_show_template_sig},
 };
 
 static struct ima_template_desc *ima_template;
diff --git a/security/integrity/ima/ima_template_lib.c b/security/integrity/ima/ima_template_lib.c
index 7d841448f246..6d66ad6ed265 100644
--- a/security/integrity/ima/ima_template_lib.c
+++ b/security/integrity/ima/ima_template_lib.c
@@ -28,7 +28,8 @@ enum data_formats {
 	DATA_FMT_DIGEST = 0,
 	DATA_FMT_DIGEST_WITH_ALGO,
 	DATA_FMT_EVENT_NAME,
-	DATA_FMT_STRING
+	DATA_FMT_STRING,
+	DATA_FMT_HEX
 };
 
 static int ima_write_template_field_data(const void *data, const u32 datalen,
@@ -90,6 +91,9 @@ static void ima_show_template_data_ascii(struct seq_file *m,
 		buf_ptr += 2;
 		buflen -= buf_ptr - field_data->data;
 	case DATA_FMT_DIGEST:
+	case DATA_FMT_HEX:
+		if (!buflen)
+			break;
 		ima_print_digest(m, buf_ptr, buflen);
 		break;
 	case DATA_FMT_STRING:
@@ -147,6 +151,12 @@ void ima_show_template_string(struct seq_file *m, enum ima_show_type show,
 	ima_show_template_field_data(m, show, DATA_FMT_STRING, field_data);
 }
 
+void ima_show_template_sig(struct seq_file *m, enum ima_show_type show,
+			   struct ima_field_data *field_data)
+{
+	ima_show_template_field_data(m, show, DATA_FMT_HEX, field_data);
+}
+
 static int ima_eventdigest_init_common(u8 *digest, u32 digestsize, u8 hash_algo,
 				       struct ima_field_data *field_data,
 				       bool size_limit)
@@ -190,6 +200,7 @@ static int ima_eventdigest_init_common(u8 *digest, u32 digestsize, u8 hash_algo,
  */
 int ima_eventdigest_init(struct integrity_iint_cache *iint, struct file *file,
 			 const unsigned char *filename,
+			 struct evm_ima_xattr_data *xattr_value, int xattr_len,
 			 struct ima_field_data *field_data)
 {
 	struct {
@@ -237,7 +248,8 @@ out:
  */
 int ima_eventdigest_ng_init(struct integrity_iint_cache *iint,
 			    struct file *file, const unsigned char *filename,
-			    struct ima_field_data *field_data)
+			    struct evm_ima_xattr_data *xattr_value,
+			    int xattr_len, struct ima_field_data *field_data)
 {
 	u8 *cur_digest = NULL, hash_algo = HASH_ALGO__LAST;
 	u32 cur_digestsize = 0;
@@ -295,6 +307,7 @@ out:
  */
 int ima_eventname_init(struct integrity_iint_cache *iint, struct file *file,
 		       const unsigned char *filename,
+		       struct evm_ima_xattr_data *xattr_value, int xattr_len,
 		       struct ima_field_data *field_data)
 {
 	return ima_eventname_init_common(iint, file, filename,
@@ -306,8 +319,29 @@ int ima_eventname_init(struct integrity_iint_cache *iint, struct file *file,
  */
 int ima_eventname_ng_init(struct integrity_iint_cache *iint, struct file *file,
 			  const unsigned char *filename,
+			  struct evm_ima_xattr_data *xattr_value, int xattr_len,
 			  struct ima_field_data *field_data)
 {
 	return ima_eventname_init_common(iint, file, filename,
 					 field_data, false);
 }
+
+/*
+ *  ima_eventsig_init - include the file signature as part of the template data
+ */
+int ima_eventsig_init(struct integrity_iint_cache *iint, struct file *file,
+		      const unsigned char *filename,
+		      struct evm_ima_xattr_data *xattr_value, int xattr_len,
+		      struct ima_field_data *field_data)
+{
+	enum data_formats fmt = DATA_FMT_HEX;
+	int rc = 0;
+
+	if ((!xattr_value) || (xattr_value->type != EVM_IMA_XATTR_DIGSIG))
+		goto out;
+
+	rc = ima_write_template_field_data(xattr_value, xattr_len, fmt,
+					   field_data);
+out:
+	return rc;
+}
diff --git a/security/integrity/ima/ima_template_lib.h b/security/integrity/ima/ima_template_lib.h
index 16c5e7810234..63f6b52cb1c2 100644
--- a/security/integrity/ima/ima_template_lib.h
+++ b/security/integrity/ima/ima_template_lib.h
@@ -24,16 +24,26 @@ void ima_show_template_digest_ng(struct seq_file *m, enum ima_show_type show,
 				 struct ima_field_data *field_data);
 void ima_show_template_string(struct seq_file *m, enum ima_show_type show,
 			      struct ima_field_data *field_data);
+void ima_show_template_sig(struct seq_file *m, enum ima_show_type show,
+			   struct ima_field_data *field_data);
 int ima_eventdigest_init(struct integrity_iint_cache *iint, struct file *file,
 			 const unsigned char *filename,
+			 struct evm_ima_xattr_data *xattr_value, int xattr_len,
 			 struct ima_field_data *field_data);
 int ima_eventname_init(struct integrity_iint_cache *iint, struct file *file,
 		       const unsigned char *filename,
+		       struct evm_ima_xattr_data *xattr_value, int xattr_len,
 		       struct ima_field_data *field_data);
 int ima_eventdigest_ng_init(struct integrity_iint_cache *iint,
 			    struct file *file, const unsigned char *filename,
-			    struct ima_field_data *field_data);
+			    struct evm_ima_xattr_data *xattr_value,
+			    int xattr_len, struct ima_field_data *field_data);
 int ima_eventname_ng_init(struct integrity_iint_cache *iint, struct file *file,
 			  const unsigned char *filename,
+			  struct evm_ima_xattr_data *xattr_value, int xattr_len,
 			  struct ima_field_data *field_data);
+int ima_eventsig_init(struct integrity_iint_cache *iint, struct file *file,
+		      const unsigned char *filename,
+		      struct evm_ima_xattr_data *xattr_value, int xattr_len,
+		      struct ima_field_data *field_data);
 #endif /* __LINUX_IMA_TEMPLATE_LIB_H */
-- 
cgit 


From 217091dd7a7a1bdac027ddb7c5a25f6ac0b8e241 Mon Sep 17 00:00:00 2001
From: Mimi Zohar <zohar@linux.vnet.ibm.com>
Date: Tue, 13 Aug 2013 08:47:43 -0400
Subject: ima: define '_ima' as a builtin 'trusted' keyring

Require all keys added to the IMA keyring be signed by an
existing trusted key on the system trusted keyring.

Changelog:
- define stub integrity_init_keyring() function (reported-by Fengguang Wu)
- differentiate between regular and trusted keyring names.
- replace printk with pr_info (D. Kasatkin)

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
---
 security/integrity/digsig.c           | 30 +++++++++++++++++++++++++++++-
 security/integrity/ima/Kconfig        |  8 ++++++++
 security/integrity/ima/ima_appraise.c | 11 +++++++++++
 security/integrity/integrity.h        |  7 +++++++
 4 files changed, 55 insertions(+), 1 deletion(-)

diff --git a/security/integrity/digsig.c b/security/integrity/digsig.c
index b4af4ebc5be2..77ca965ab684 100644
--- a/security/integrity/digsig.c
+++ b/security/integrity/digsig.c
@@ -13,7 +13,9 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/err.h>
+#include <linux/sched.h>
 #include <linux/rbtree.h>
+#include <linux/cred.h>
 #include <linux/key-type.h>
 #include <linux/digsig.h>
 
@@ -21,11 +23,19 @@
 
 static struct key *keyring[INTEGRITY_KEYRING_MAX];
 
+#ifdef CONFIG_IMA_TRUSTED_KEYRING
+static const char *keyring_name[INTEGRITY_KEYRING_MAX] = {
+	".evm",
+	".module",
+	".ima",
+};
+#else
 static const char *keyring_name[INTEGRITY_KEYRING_MAX] = {
 	"_evm",
 	"_module",
 	"_ima",
 };
+#endif
 
 int integrity_digsig_verify(const unsigned int id, const char *sig, int siglen,
 			    const char *digest, int digestlen)
@@ -35,7 +45,7 @@ int integrity_digsig_verify(const unsigned int id, const char *sig, int siglen,
 
 	if (!keyring[id]) {
 		keyring[id] =
-			request_key(&key_type_keyring, keyring_name[id], NULL);
+		    request_key(&key_type_keyring, keyring_name[id], NULL);
 		if (IS_ERR(keyring[id])) {
 			int err = PTR_ERR(keyring[id]);
 			pr_err("no %s keyring: %d\n", keyring_name[id], err);
@@ -56,3 +66,21 @@ int integrity_digsig_verify(const unsigned int id, const char *sig, int siglen,
 
 	return -EOPNOTSUPP;
 }
+
+int integrity_init_keyring(const unsigned int id)
+{
+	const struct cred *cred = current_cred();
+	const struct user_struct *user = cred->user;
+
+	keyring[id] = keyring_alloc(keyring_name[id], KUIDT_INIT(0),
+				    KGIDT_INIT(0), cred,
+				    ((KEY_POS_ALL & ~KEY_POS_SETATTR) |
+				     KEY_USR_VIEW | KEY_USR_READ),
+				    KEY_ALLOC_NOT_IN_QUOTA, user->uid_keyring);
+	if (!IS_ERR(keyring[id]))
+		set_bit(KEY_FLAG_TRUSTED_ONLY, &keyring[id]->flags);
+	else
+		pr_info("Can't allocate %s keyring (%ld)\n",
+			keyring_name[id], PTR_ERR(keyring[id]));
+	return 0;
+}
diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig
index 81a27971d884..dad8d4ca2437 100644
--- a/security/integrity/ima/Kconfig
+++ b/security/integrity/ima/Kconfig
@@ -123,3 +123,11 @@ config IMA_APPRAISE
 	  For more information on integrity appraisal refer to:
 	  <http://linux-ima.sourceforge.net>
 	  If unsure, say N.
+
+config IMA_TRUSTED_KEYRING
+	bool "Require all keys on the _ima keyring be signed"
+	depends on IMA_APPRAISE && SYSTEM_TRUSTED_KEYRING
+	default y
+	help
+	   This option requires that all keys added to the _ima
+	   keyring be signed by a key on the system trusted keyring.
diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c
index 734e9468aca0..46353ee517f6 100644
--- a/security/integrity/ima/ima_appraise.c
+++ b/security/integrity/ima/ima_appraise.c
@@ -381,3 +381,14 @@ int ima_inode_removexattr(struct dentry *dentry, const char *xattr_name)
 	}
 	return result;
 }
+
+#ifdef CONFIG_IMA_TRUSTED_KEYRING
+static int __init init_ima_keyring(void)
+{
+	int ret;
+
+	ret = integrity_init_keyring(INTEGRITY_KEYRING_IMA);
+	return 0;
+}
+late_initcall(init_ima_keyring);
+#endif
diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h
index 2fb5e53e927f..b9e7c133734a 100644
--- a/security/integrity/integrity.h
+++ b/security/integrity/integrity.h
@@ -137,12 +137,19 @@ static inline int integrity_digsig_verify(const unsigned int id,
 #ifdef CONFIG_INTEGRITY_ASYMMETRIC_KEYS
 int asymmetric_verify(struct key *keyring, const char *sig,
 		      int siglen, const char *data, int datalen);
+
+int integrity_init_keyring(const unsigned int id);
 #else
 static inline int asymmetric_verify(struct key *keyring, const char *sig,
 				    int siglen, const char *data, int datalen)
 {
 	return -EOPNOTSUPP;
 }
+
+static int integrity_init_keyring(const unsigned int id)
+{
+	return 0;
+}
 #endif
 
 #ifdef CONFIG_INTEGRITY_AUDIT
-- 
cgit 


From 954a73d5d3073df2231820c718fdd2f18b0fe4c9 Mon Sep 17 00:00:00 2001
From: Shiva Krishna Merla <shivakrishna.merla@netapp.com>
Date: Wed, 30 Oct 2013 03:26:38 +0000
Subject: dm mpath: fix race condition between multipath_dtr and pg_init_done

Whenever multipath_dtr() is happening we must prevent queueing any
further path activation work.  Implement this by adding a new
'pg_init_disabled' flag to the multipath structure that denotes future
path activation work should be skipped if it is set.  By disabling
pg_init and then re-enabling in flush_multipath_work() we also avoid the
potential for pg_init to be initiated while suspending an mpath device.

Without this patch a race condition exists that may result in a kernel
panic:

1) If after pg_init_done() decrements pg_init_in_progress to 0, a call
   to wait_for_pg_init_completion() assumes there are no more pending path
   management commands.
2) If pg_init_required is set by pg_init_done(), due to retryable
   mode_select errors, then process_queued_ios() will again queue the
   path activation work.
3) If free_multipath() completes before activate_path() work is called a
   NULL pointer dereference like the following can be seen when
   accessing members of the recently destructed multipath:

BUG: unable to handle kernel NULL pointer dereference at 0000000000000090
RIP: 0010:[<ffffffffa003db1b>]  [<ffffffffa003db1b>] activate_path+0x1b/0x30 [dm_multipath]
[<ffffffff81090ac0>] worker_thread+0x170/0x2a0
[<ffffffff81096c80>] ? autoremove_wake_function+0x0/0x40

[switch to disabling pg_init in flush_multipath_work & header edits by Mike Snitzer]
Signed-off-by: Shiva Krishna Merla <shivakrishna.merla@netapp.com>
Reviewed-by: Krishnasamy Somasundaram <somasundaram.krishnasamy@netapp.com>
Tested-by: Speagle Andy <Andy.Speagle@netapp.com>
Acked-by: Junichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org
---
 drivers/md/dm-mpath.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index de570a558764..799e479db93b 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -87,6 +87,7 @@ struct multipath {
 	unsigned queue_if_no_path:1;	/* Queue I/O if last path fails? */
 	unsigned saved_queue_if_no_path:1; /* Saved state during suspension */
 	unsigned retain_attached_hw_handler:1; /* If there's already a hw_handler present, don't change it. */
+	unsigned pg_init_disabled:1;	/* pg_init is not currently allowed */
 
 	unsigned pg_init_retries;	/* Number of times to retry pg_init */
 	unsigned pg_init_count;		/* Number of times pg_init called */
@@ -497,7 +498,8 @@ static void process_queued_ios(struct work_struct *work)
 	    (!pgpath && !m->queue_if_no_path))
 		must_queue = 0;
 
-	if (m->pg_init_required && !m->pg_init_in_progress && pgpath)
+	if (m->pg_init_required && !m->pg_init_in_progress && pgpath &&
+	    !m->pg_init_disabled)
 		__pg_init_all_paths(m);
 
 	spin_unlock_irqrestore(&m->lock, flags);
@@ -942,10 +944,20 @@ static void multipath_wait_for_pg_init_completion(struct multipath *m)
 
 static void flush_multipath_work(struct multipath *m)
 {
+	unsigned long flags;
+
+	spin_lock_irqsave(&m->lock, flags);
+	m->pg_init_disabled = 1;
+	spin_unlock_irqrestore(&m->lock, flags);
+
 	flush_workqueue(kmpath_handlerd);
 	multipath_wait_for_pg_init_completion(m);
 	flush_workqueue(kmultipathd);
 	flush_work(&m->trigger_event);
+
+	spin_lock_irqsave(&m->lock, flags);
+	m->pg_init_disabled = 0;
+	spin_unlock_irqrestore(&m->lock, flags);
 }
 
 static void multipath_dtr(struct dm_target *ti)
@@ -1164,7 +1176,7 @@ static int pg_init_limit_reached(struct multipath *m, struct pgpath *pgpath)
 
 	spin_lock_irqsave(&m->lock, flags);
 
-	if (m->pg_init_count <= m->pg_init_retries)
+	if (m->pg_init_count <= m->pg_init_retries && !m->pg_init_disabled)
 		m->pg_init_required = 1;
 	else
 		limit_reached = 1;
@@ -1714,7 +1726,7 @@ out:
  *---------------------------------------------------------------*/
 static struct target_type multipath_target = {
 	.name = "multipath",
-	.version = {1, 5, 1},
+	.version = {1, 6, 0},
 	.module = THIS_MODULE,
 	.ctr = multipath_ctr,
 	.dtr = multipath_dtr,
-- 
cgit 


From 66e960c692e9def8451d51e9cdb1ffc294dc27b2 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Fri, 1 Nov 2013 11:20:05 +0900
Subject: f2fs: update f2fs document

This patch describes the inline_xattr support in f2fs document.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 Documentation/filesystems/f2fs.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/filesystems/f2fs.txt b/Documentation/filesystems/f2fs.txt
index 4c647c280dcc..a3fe811bbdbc 100644
--- a/Documentation/filesystems/f2fs.txt
+++ b/Documentation/filesystems/f2fs.txt
@@ -119,6 +119,7 @@ active_logs=%u         Support configuring the number of active logs. In the
                        Default number is 6.
 disable_ext_identify   Disable the extension list configured by mkfs, so f2fs
                        does not aware of cold files such as media files.
+inline_xattr           Enable the inline xattrs feature.
 
 ================================================================================
 DEBUGFS ENTRIES
-- 
cgit 


From dcb9917ba041866686fe152850364826c4622a36 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Thu, 31 Oct 2013 23:00:24 -0400
Subject: ext4: avoid bh leak in retry path of ext4_expand_extra_isize_ea()

Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
---
 fs/ext4/xattr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index 03e9bebba198..1423c4816a47 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -1352,6 +1352,7 @@ retry:
 					new_extra_isize = s_min_extra_isize;
 					kfree(is); is = NULL;
 					kfree(bs); bs = NULL;
+					brelse(bh);
 					goto retry;
 				}
 				error = -1;
-- 
cgit 


From 84502b5ef9849a9694673b15c31bd3ac693010ae Mon Sep 17 00:00:00 2001
From: Steffen Klassert <steffen.klassert@secunet.com>
Date: Wed, 30 Oct 2013 11:16:28 +0100
Subject: xfrm: Fix null pointer dereference when decoding sessions

On some codepaths the skb does not have a dst entry
when xfrm_decode_session() is called. So check for
a valid skb_dst() before dereferencing the device
interface index. We use 0 as the device index if
there is no valid skb_dst(), or at reverse decoding
we use skb_iif as device interface index.

Bug was introduced with git commit bafd4bd4dc
("xfrm: Decode sessions with output interface.").

Reported-by: Meelis Roos <mroos@linux.ee>
Tested-by: Meelis Roos <mroos@linux.ee>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
---
 net/ipv4/xfrm4_policy.c | 6 +++++-
 net/ipv6/xfrm6_policy.c | 6 +++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c
index 4764ee48447c..e1a63930a967 100644
--- a/net/ipv4/xfrm4_policy.c
+++ b/net/ipv4/xfrm4_policy.c
@@ -104,10 +104,14 @@ _decode_session4(struct sk_buff *skb, struct flowi *fl, int reverse)
 	const struct iphdr *iph = ip_hdr(skb);
 	u8 *xprth = skb_network_header(skb) + iph->ihl * 4;
 	struct flowi4 *fl4 = &fl->u.ip4;
+	int oif = 0;
+
+	if (skb_dst(skb))
+		oif = skb_dst(skb)->dev->ifindex;
 
 	memset(fl4, 0, sizeof(struct flowi4));
 	fl4->flowi4_mark = skb->mark;
-	fl4->flowi4_oif = skb_dst(skb)->dev->ifindex;
+	fl4->flowi4_oif = reverse ? skb->skb_iif : oif;
 
 	if (!ip_is_fragment(iph)) {
 		switch (iph->protocol) {
diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c
index dd503a3535ff..5f8e128c512d 100644
--- a/net/ipv6/xfrm6_policy.c
+++ b/net/ipv6/xfrm6_policy.c
@@ -135,10 +135,14 @@ _decode_session6(struct sk_buff *skb, struct flowi *fl, int reverse)
 	struct ipv6_opt_hdr *exthdr;
 	const unsigned char *nh = skb_network_header(skb);
 	u8 nexthdr = nh[IP6CB(skb)->nhoff];
+	int oif = 0;
+
+	if (skb_dst(skb))
+		oif = skb_dst(skb)->dev->ifindex;
 
 	memset(fl6, 0, sizeof(struct flowi6));
 	fl6->flowi6_mark = skb->mark;
-	fl6->flowi6_oif = skb_dst(skb)->dev->ifindex;
+	fl6->flowi6_oif = reverse ? skb->skb_iif : oif;
 
 	fl6->daddr = reverse ? hdr->saddr : hdr->daddr;
 	fl6->saddr = reverse ? hdr->daddr : hdr->saddr;
-- 
cgit 


From 7b5bfb82882b9b1c8423ce0ed6852ca3762d967a Mon Sep 17 00:00:00 2001
From: Phil Edworthy <phil.edworthy@renesas.com>
Date: Thu, 31 Oct 2013 23:06:17 -0700
Subject: ASoC: ak4642: prevent un-necessary changes to SG_SL1

If you record the sound during playback,
the playback sound becomes silent.
Modify so that the codec driver does not clear
SG_SL1::DACL bit which is controlled under widget

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
---
 sound/soc/codecs/ak4642.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/ak4642.c b/sound/soc/codecs/ak4642.c
index 2d0378709702..687565d08d9c 100644
--- a/sound/soc/codecs/ak4642.c
+++ b/sound/soc/codecs/ak4642.c
@@ -257,7 +257,7 @@ static int ak4642_dai_startup(struct snd_pcm_substream *substream,
 		 * This operation came from example code of
 		 * "ASAHI KASEI AK4642" (japanese) manual p94.
 		 */
-		snd_soc_write(codec, SG_SL1, PMMP | MGAIN0);
+		snd_soc_update_bits(codec, SG_SL1, PMMP | MGAIN0, PMMP | MGAIN0);
 		snd_soc_write(codec, TIMER, ZTM(0x3) | WTM(0x3));
 		snd_soc_write(codec, ALC_CTL1, ALC | LMTH0);
 		snd_soc_update_bits(codec, PW_MGMT1, PMADL, PMADL);
-- 
cgit 


From 7d716456a0ee4e9bd63be9234f886d20382ac950 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Thu, 31 Oct 2013 12:48:14 +0100
Subject: sched/wait: Fix __wait_event_interruptible_lock_irq_timeout()

__wait_event_interruptible_lock_irq_timeout() needs the timeout
parameter passed instead of "ret".

This magically compiled since the only user has a local ret
variable. Luckily we got a build warning:

  CC      drivers/s390/scsi/zfcp_qdio.o
  drivers/s390/scsi/zfcp_qdio.c: In function 'zfcp_qdio_sbal_get':
  include/linux/wait.h:780:15: warning: 'ret' may be used uninitialized

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20131031114814.GB5551@osiris
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/wait.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index 3b23afa04d6b..61939ba30aa0 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -739,7 +739,7 @@ do {									\
 #define __wait_event_interruptible_lock_irq_timeout(wq, condition,	\
 						    lock, timeout)	\
 	___wait_event(wq, ___wait_cond_timeout(condition),		\
-		      TASK_INTERRUPTIBLE, 0, ret,			\
+		      TASK_INTERRUPTIBLE, 0, timeout,			\
 		      spin_unlock_irq(&lock);				\
 		      __ret = schedule_timeout(__ret);			\
 		      spin_lock_irq(&lock));
-- 
cgit 


From 023838542dc8a4eac9650f98942671078a4ce73d Mon Sep 17 00:00:00 2001
From: Mengdong Lin <mengdong.lin@intel.com>
Date: Thu, 31 Oct 2013 18:31:51 -0400
Subject: ALSA: hda - not choose assigned converters for unused pins of
 Valleyview

For Valleyview display codec, if an unused pin chooses an assgined converter
selected by a used pin, playback on the unused pin can also give sound to the
output device of the used pin. It's because data flows from the same convertor
to the display port of the used pin. This issue is same as Haswell.

So this patch avoids using assinged convertors for unused pins.
The related function haswell_config_cvts() is renamed for code reuse.

Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 772827b9fb20..d61cc2ab52af 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -46,6 +46,7 @@ module_param(static_hdmi_pcm, bool, 0644);
 MODULE_PARM_DESC(static_hdmi_pcm, "Don't restrict PCM parameters per ELD info");
 
 #define is_haswell(codec)  ((codec)->vendor_id == 0x80862807)
+#define is_valleyview(codec) ((codec)->vendor_id == 0x80862882)
 
 struct hdmi_spec_per_cvt {
 	hda_nid_t cvt_nid;
@@ -1327,7 +1328,7 @@ static int hdmi_choose_cvt(struct hda_codec *codec,
 	return 0;
 }
 
-static void haswell_config_cvts(struct hda_codec *codec,
+static void not_share_unassigned_cvt(struct hda_codec *codec,
 			hda_nid_t pin_nid, int mux_idx)
 {
 	struct hdmi_spec *spec = codec->spec;
@@ -1406,8 +1407,8 @@ static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
 			    mux_idx);
 
 	/* configure unused pins to choose other converters */
-	if (is_haswell(codec))
-		haswell_config_cvts(codec, per_pin->pin_nid, mux_idx);
+	if (is_haswell(codec) || is_valleyview(codec))
+		not_share_unassigned_cvt(codec, per_pin->pin_nid, mux_idx);
 
 	snd_hda_spdif_ctls_assign(codec, pin_idx, per_cvt->cvt_nid);
 
-- 
cgit 


From 006e854f15560e934b4464f957691d47d03ac6a2 Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Fri, 1 Nov 2013 11:15:05 +0100
Subject: MAINTAINERS: Move PWM subsystem tree to kernel.org

The PWM subsystem tree is now located on kernel.org. This will hopefully
make it more reliably accessible.

Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---
 MAINTAINERS | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index e61c2e83fc2b..57b0a9f697b3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6684,8 +6684,7 @@ PWM SUBSYSTEM
 M:	Thierry Reding <thierry.reding@gmail.com>
 L:	linux-pwm@vger.kernel.org
 S:	Maintained
-W:	http://gitorious.org/linux-pwm
-T:	git git://gitorious.org/linux-pwm/linux-pwm.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm.git
 F:	Documentation/pwm.txt
 F:	Documentation/devicetree/bindings/pwm/
 F:	include/linux/pwm.h
-- 
cgit 


From b577cdcf174b0e88091cb7c9926c44cda87d3d0d Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 29 Oct 2013 10:27:43 +0530
Subject: pwm: samsung: Fix kernel warning while unexporting a channel

PWM channel data was set to NULL before freeing it. This caused the
following kernel warning while unexporting the channel. Set the channel
data to NULL after freeing it.

[   70.495000] WARNING: CPU: 0 PID: 1 at drivers/base/devres.c:805 pwm_put+0x48/0x80()
[   70.505000] Modules linked in:
[   70.505000] CPU: 0 PID: 1 Comm: sh Not tainted 3.12.0-rc6-next-20131024-00012-gd4aec04-dirty #58
[   70.515000] [<c0014ddc>] (unwind_backtrace+0x0/0xf4) from [<c0011784>] (show_stack+0x10/0x14)
[   70.525000] [<c0011784>] (show_stack+0x10/0x14) from [<c03a3cbc>] (dump_stack+0x7c/0xb0)
[   70.530000] [<c03a3cbc>] (dump_stack+0x7c/0xb0) from [<c001de68>] (warn_slowpath_common+0x6c/0x88)
[   70.540000] [<c001de68>] (warn_slowpath_common+0x6c/0x88) from [<c001df20>] (warn_slowpath_null+0x1c/0x24)
[   70.550000] [<c001df20>] (warn_slowpath_null+0x1c/0x24) from [<c01d1af8>] (pwm_put+0x48/0x80)
[   70.560000] [<c01d1af8>] (pwm_put+0x48/0x80) from [<c01d21c8>] (pwm_unexport_store+0x94/0xac)
[   70.565000] [<c01d21c8>] (pwm_unexport_store+0x94/0xac) from [<c010991c>] (sysfs_write_file+0x148/0x1d8)
[   70.575000] [<c010991c>] (sysfs_write_file+0x148/0x1d8) from [<c00b2a80>] (vfs_write+0xb4/0x1a0)
[   70.585000] [<c00b2a80>] (vfs_write+0xb4/0x1a0) from [<c00b3068>] (SyS_write+0x3c/0x78)
[   70.595000] [<c00b3068>] (SyS_write+0x3c/0x78) from [<c000e2e0>] (ret_fast_syscall+0x0/0x30)

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---
 drivers/pwm/pwm-samsung.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pwm/pwm-samsung.c b/drivers/pwm/pwm-samsung.c
index 57eb8cb0638f..b59639e0c029 100644
--- a/drivers/pwm/pwm-samsung.c
+++ b/drivers/pwm/pwm-samsung.c
@@ -225,8 +225,8 @@ static int pwm_samsung_request(struct pwm_chip *chip, struct pwm_device *pwm)
 
 static void pwm_samsung_free(struct pwm_chip *chip, struct pwm_device *pwm)
 {
-	pwm_set_chip_data(pwm, NULL);
 	devm_kfree(chip->dev, pwm_get_chip_data(pwm));
+	pwm_set_chip_data(pwm, NULL);
 }
 
 static int pwm_samsung_enable(struct pwm_chip *chip, struct pwm_device *pwm)
-- 
cgit 


From f9423606ade08653dd8a43334f0a7fb45504c5cc Mon Sep 17 00:00:00 2001
From: Julian Stecklina <jsteckli@os.inf.tu-dresden.de>
Date: Wed, 9 Oct 2013 10:03:52 +0200
Subject: iommu/vt-d: Fixed interaction of VFIO_IOMMU_MAP_DMA with IOMMU
 address limits

The BUG_ON in drivers/iommu/intel-iommu.c:785 can be triggered from userspace via
VFIO by calling the VFIO_IOMMU_MAP_DMA ioctl on a vfio device with any address
beyond the addressing capabilities of the IOMMU. The problem is that the ioctl code
calls iommu_iova_to_phys before it calls iommu_map. iommu_map handles the case that
it gets addresses beyond the addressing capabilities of its IOMMU.
intel_iommu_iova_to_phys does not.

This patch fixes iommu_iova_to_phys to return NULL for addresses beyond what the
IOMMU can handle. This in turn causes the ioctl call to fail in iommu_map and
(correctly) return EFAULT to the user with a helpful warning message in the kernel
log.

Signed-off-by: Julian Stecklina <jsteckli@os.inf.tu-dresden.de>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---
 drivers/iommu/intel-iommu.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 15e9b57e9cf0..40203ada635e 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -782,7 +782,11 @@ static struct dma_pte *pfn_to_dma_pte(struct dmar_domain *domain,
 	int offset;
 
 	BUG_ON(!domain->pgd);
-	BUG_ON(addr_width < BITS_PER_LONG && pfn >> addr_width);
+
+	if (addr_width < BITS_PER_LONG && pfn >> addr_width)
+		/* Address beyond IOMMU's addressing capabilities. */
+		return NULL;
+
 	parent = domain->pgd;
 
 	while (level > 0) {
-- 
cgit 


From 49a45a0686cc2b43bcb3834a68416a201475dc77 Mon Sep 17 00:00:00 2001
From: Hong Zhiguo <zhiguohong@tencent.com>
Date: Tue, 22 Oct 2013 18:32:56 +0000
Subject: e1000: fix wrong queue idx calculation

tx_ring and adapter->tx_ring are already of type "struct
e1000_tx_ring *"

Signed-off-by: Hong Zhiguo <zhiguohong@tencent.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/e1000/e1000_main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
index 59ad007dd5aa..ad6800ad1bfc 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
@@ -3917,8 +3917,7 @@ static bool e1000_clean_tx_irq(struct e1000_adapter *adapter,
 			      "  next_to_watch        <%x>\n"
 			      "  jiffies              <%lx>\n"
 			      "  next_to_watch.status <%x>\n",
-				(unsigned long)((tx_ring - adapter->tx_ring) /
-					sizeof(struct e1000_tx_ring)),
+				(unsigned long)(tx_ring - adapter->tx_ring),
 				readl(hw->hw_addr + tx_ring->tdh),
 				readl(hw->hw_addr + tx_ring->tdt),
 				tx_ring->next_to_use,
-- 
cgit 


From 76b81748d43f2c60774c2703e3a9390bcc552adb Mon Sep 17 00:00:00 2001
From: Emil Tantilov <emil.s.tantilov@intel.com>
Date: Tue, 29 Oct 2013 08:31:49 +0000
Subject: ixgbevf: remove redundant workaround

This patch removes a workaround related to header split, which is redundant
because the driver does not support splitting packet headers on Rx.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index b16b694951b8..9685354e6b9d 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -497,15 +497,6 @@ static int ixgbevf_clean_rx_irq(struct ixgbevf_q_vector *q_vector,
 		total_rx_bytes += skb->len;
 		total_rx_packets++;
 
-		/*
-		 * Work around issue of some types of VM to VM loop back
-		 * packets not getting split correctly
-		 */
-		if (staterr & IXGBE_RXD_STAT_LB) {
-			u32 header_fixup_len = skb_headlen(skb);
-			if (header_fixup_len < 14)
-				skb_push(skb, header_fixup_len);
-		}
 		skb->protocol = eth_type_trans(skb, rx_ring->netdev);
 
 		/* Workaround hardware that can't do proper VEPA multicast
-- 
cgit 


From a71fc313c4f569be5788caff07ef1fe346842c5b Mon Sep 17 00:00:00 2001
From: "Fujinaka, Todd" <todd.fujinaka@intel.com>
Date: Wed, 23 Oct 2013 05:52:11 +0000
Subject: igb: Don't let ethtool try to write to iNVM in i210/i211

Don't let ethtool try to write to iNVM in i210/i211.

This fixes an issue seen by Marek Vasut.

Reported-by: Marek Vasut <marex@denx.de>
Signed-off-by: Todd Fujinaka <todd.fujinaka@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/igb/igb_ethtool.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index 0ae3177416c7..b918ba3640f9 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -771,8 +771,10 @@ static int igb_set_eeprom(struct net_device *netdev,
 	if (eeprom->len == 0)
 		return -EOPNOTSUPP;
 
-	if (hw->mac.type == e1000_i211)
+	if ((hw->mac.type >= e1000_i210) &&
+	    !igb_get_flash_presence_i210(hw)) {
 		return -EOPNOTSUPP;
+	}
 
 	if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16)))
 		return -EFAULT;
-- 
cgit 


From e55fea0c50452449403bc8645fa3a6205dd74547 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Sat, 19 Oct 2013 11:46:22 +0300
Subject: i2c: scmi: remove some bogus NULL checks

"obj" can't be NULL here.

We already know that "pkg->package.elements" gives us a valid pointer
so the next pointer after that is also non-NULL.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-scmi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/i2c/busses/i2c-scmi.c b/drivers/i2c/busses/i2c-scmi.c
index c447e8d40b78..599235514138 100644
--- a/drivers/i2c/busses/i2c-scmi.c
+++ b/drivers/i2c/busses/i2c-scmi.c
@@ -223,7 +223,7 @@ acpi_smbus_cmi_access(struct i2c_adapter *adap, u16 addr, unsigned short flags,
 		goto out;
 
 	obj = pkg->package.elements + 1;
-	if (obj == NULL || obj->type != ACPI_TYPE_INTEGER) {
+	if (obj->type != ACPI_TYPE_INTEGER) {
 		ACPI_ERROR((AE_INFO, "Invalid argument type"));
 		result = -EIO;
 		goto out;
@@ -235,7 +235,7 @@ acpi_smbus_cmi_access(struct i2c_adapter *adap, u16 addr, unsigned short flags,
 	case I2C_SMBUS_BYTE:
 	case I2C_SMBUS_BYTE_DATA:
 	case I2C_SMBUS_WORD_DATA:
-		if (obj == NULL || obj->type != ACPI_TYPE_INTEGER) {
+		if (obj->type != ACPI_TYPE_INTEGER) {
 			ACPI_ERROR((AE_INFO, "Invalid argument type"));
 			result = -EIO;
 			goto out;
@@ -246,7 +246,7 @@ acpi_smbus_cmi_access(struct i2c_adapter *adap, u16 addr, unsigned short flags,
 			data->byte = obj->integer.value;
 		break;
 	case I2C_SMBUS_BLOCK_DATA:
-		if (obj == NULL || obj->type != ACPI_TYPE_BUFFER) {
+		if (obj->type != ACPI_TYPE_BUFFER) {
 			ACPI_ERROR((AE_INFO, "Invalid argument type"));
 			result = -EIO;
 			goto out;
-- 
cgit 


From 043a3f113ce41e3e6fdbb49551df75e82e8c4ae7 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Mon, 21 Oct 2013 01:04:32 -0700
Subject: i2c: rcar: fixup rcar type naming

b720423a2627f045133bec39a31fe2bc0dab86f3
(i2c: rcar: add rcar-H2 support)
added R-Car H2 support on i2c-rcar.

The R-Car I2C type is based on SoC generation
(Gen1 = E1/M1/H1, Gen2 = E2/M2/H2),
but added naming was H1/H2 instead of Gen1/Gen2.
Gen1/Gen2 is better naming on this driver.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-rcar.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index 8603f5e805aa..2c2fd7c2b116 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -103,8 +103,8 @@ enum {
 #define ID_NACK		(1 << 4)
 
 enum rcar_i2c_type {
-	I2C_RCAR_H1,
-	I2C_RCAR_H2,
+	I2C_RCAR_GEN1,
+	I2C_RCAR_GEN2,
 };
 
 struct rcar_i2c_priv {
@@ -240,10 +240,10 @@ static int rcar_i2c_clock_calculate(struct rcar_i2c_priv *priv,
 	}
 
 	switch (priv->devtype) {
-	case I2C_RCAR_H1:
+	case I2C_RCAR_GEN1:
 		cdf_width = 2;
 		break;
-	case I2C_RCAR_H2:
+	case I2C_RCAR_GEN2:
 		cdf_width = 3;
 		break;
 	default:
@@ -640,10 +640,10 @@ static const struct i2c_algorithm rcar_i2c_algo = {
 };
 
 static const struct of_device_id rcar_i2c_dt_ids[] = {
-	{ .compatible = "renesas,i2c-rcar", .data = (void *)I2C_RCAR_H1 },
-	{ .compatible = "renesas,i2c-r8a7778", .data = (void *)I2C_RCAR_H1 },
-	{ .compatible = "renesas,i2c-r8a7779", .data = (void *)I2C_RCAR_H1 },
-	{ .compatible = "renesas,i2c-r8a7790", .data = (void *)I2C_RCAR_H2 },
+	{ .compatible = "renesas,i2c-rcar", .data = (void *)I2C_RCAR_GEN1 },
+	{ .compatible = "renesas,i2c-r8a7778", .data = (void *)I2C_RCAR_GEN1 },
+	{ .compatible = "renesas,i2c-r8a7779", .data = (void *)I2C_RCAR_GEN1 },
+	{ .compatible = "renesas,i2c-r8a7790", .data = (void *)I2C_RCAR_GEN2 },
 	{},
 };
 MODULE_DEVICE_TABLE(of, rcar_i2c_dt_ids);
@@ -731,9 +731,9 @@ static int rcar_i2c_remove(struct platform_device *pdev)
 }
 
 static struct platform_device_id rcar_i2c_id_table[] = {
-	{ "i2c-rcar",		I2C_RCAR_H1 },
-	{ "i2c-rcar_h1",	I2C_RCAR_H1 },
-	{ "i2c-rcar_h2",	I2C_RCAR_H2 },
+	{ "i2c-rcar",		I2C_RCAR_GEN1 },
+	{ "i2c-rcar_gen1",	I2C_RCAR_GEN1 },
+	{ "i2c-rcar_gen2",	I2C_RCAR_GEN2 },
 	{},
 };
 MODULE_DEVICE_TABLE(platform, rcar_i2c_id_table);
-- 
cgit 


From 8a73cd4cfa159918da405d9645deca842590e2fe Mon Sep 17 00:00:00 2001
From: Naveen Krishna Ch <ch.naveen@samsung.com>
Date: Wed, 16 Oct 2013 11:00:42 +0530
Subject: i2c: exynos5: add High Speed I2C controller driver

Adds support for High Speed I2C driver found in Exynos5 and
later SoCs from Samsung.

Driver only supports Device Tree method.

Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Taekgyun Ko <taeggyun.ko@samsung.com>
Reviewed-by: Simon Glass <sjg@google.com>
Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
Signed-off-by: Andrew Bresticker <abrestic@google.com>
[wsa: rebased to v3.12-rc4 (no of_i2c.h anymore)]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 .../devicetree/bindings/i2c/i2c-exynos5.txt        |  44 ++
 drivers/i2c/busses/Kconfig                         |   7 +
 drivers/i2c/busses/Makefile                        |   1 +
 drivers/i2c/busses/i2c-exynos5.c                   | 774 +++++++++++++++++++++
 4 files changed, 826 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/i2c/i2c-exynos5.txt
 create mode 100644 drivers/i2c/busses/i2c-exynos5.c

diff --git a/Documentation/devicetree/bindings/i2c/i2c-exynos5.txt b/Documentation/devicetree/bindings/i2c/i2c-exynos5.txt
new file mode 100644
index 000000000000..056732cfdcee
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-exynos5.txt
@@ -0,0 +1,44 @@
+* Samsung's High Speed I2C controller
+
+The Samsung's High Speed I2C controller is used to interface with I2C devices
+at various speeds ranging from 100khz to 3.4Mhz.
+
+Required properties:
+  - compatible: value should be.
+      -> "samsung,exynos5-hsi2c", for i2c compatible with exynos5 hsi2c.
+  - reg: physical base address of the controller and length of memory mapped
+    region.
+  - interrupts: interrupt number to the cpu.
+  - #address-cells: always 1 (for i2c addresses)
+  - #size-cells: always 0
+
+  - Pinctrl:
+    - pinctrl-0: Pin control group to be used for this controller.
+    - pinctrl-names: Should contain only one value - "default".
+
+Optional properties:
+  - clock-frequency: Desired operating frequency in Hz of the bus.
+    -> If not specified, the bus operates in fast-speed mode at
+       at 100khz.
+    -> If specified, the bus operates in high-speed mode only if the
+       clock-frequency is >= 1Mhz.
+
+Example:
+
+hsi2c@12ca0000 {
+	compatible = "samsung,exynos5-hsi2c";
+	reg = <0x12ca0000 0x100>;
+	interrupts = <56>;
+	clock-frequency = <100000>;
+
+	pinctrl-0 = <&i2c4_bus>;
+	pinctrl-names = "default";
+
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	s2mps11_pmic@66 {
+		compatible = "samsung,s2mps11-pmic";
+		reg = <0x66>;
+	};
+};
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 7c4bb071c123..80e55305656f 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -436,6 +436,13 @@ config I2C_EG20T
 	  ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
 	  ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
 
+config I2C_EXYNOS5
+	tristate "Exynos5 high-speed I2C driver"
+	depends on ARCH_EXYNOS5 && OF
+	help
+	  Say Y here to include support for high-speed I2C controller in the
+	  Exynos5 based Samsung SoCs.
+
 config I2C_GPIO
 	tristate "GPIO-based bitbanging I2C"
 	depends on GPIOLIB
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index d00997f3eb3b..d1ad3712d905 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -42,6 +42,7 @@ i2c-designware-platform-objs := i2c-designware-platdrv.o
 obj-$(CONFIG_I2C_DESIGNWARE_PCI)	+= i2c-designware-pci.o
 i2c-designware-pci-objs := i2c-designware-pcidrv.o
 obj-$(CONFIG_I2C_EG20T)		+= i2c-eg20t.o
+obj-$(CONFIG_I2C_EXYNOS5)	+= i2c-exynos5.o
 obj-$(CONFIG_I2C_GPIO)		+= i2c-gpio.o
 obj-$(CONFIG_I2C_HIGHLANDER)	+= i2c-highlander.o
 obj-$(CONFIG_I2C_IBM_IIC)	+= i2c-ibm_iic.o
diff --git a/drivers/i2c/busses/i2c-exynos5.c b/drivers/i2c/busses/i2c-exynos5.c
new file mode 100644
index 000000000000..aca3991b7636
--- /dev/null
+++ b/drivers/i2c/busses/i2c-exynos5.c
@@ -0,0 +1,774 @@
+/**
+ * i2c-exynos5.c - Samsung Exynos5 I2C Controller Driver
+ *
+ * Copyright (C) 2013 Samsung Electronics Co., Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/time.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/spinlock.h>
+
+/*
+ * HSI2C controller from Samsung supports 2 modes of operation
+ * 1. Auto mode: Where in master automatically controls the whole transaction
+ * 2. Manual mode: Software controls the transaction by issuing commands
+ *    START, READ, WRITE, STOP, RESTART in I2C_MANUAL_CMD register.
+ *
+ * Operation mode can be selected by setting AUTO_MODE bit in I2C_CONF register
+ *
+ * Special bits are available for both modes of operation to set commands
+ * and for checking transfer status
+ */
+
+/* Register Map */
+#define HSI2C_CTL		0x00
+#define HSI2C_FIFO_CTL		0x04
+#define HSI2C_TRAILIG_CTL	0x08
+#define HSI2C_CLK_CTL		0x0C
+#define HSI2C_CLK_SLOT		0x10
+#define HSI2C_INT_ENABLE	0x20
+#define HSI2C_INT_STATUS	0x24
+#define HSI2C_ERR_STATUS	0x2C
+#define HSI2C_FIFO_STATUS	0x30
+#define HSI2C_TX_DATA		0x34
+#define HSI2C_RX_DATA		0x38
+#define HSI2C_CONF		0x40
+#define HSI2C_AUTO_CONF		0x44
+#define HSI2C_TIMEOUT		0x48
+#define HSI2C_MANUAL_CMD	0x4C
+#define HSI2C_TRANS_STATUS	0x50
+#define HSI2C_TIMING_HS1	0x54
+#define HSI2C_TIMING_HS2	0x58
+#define HSI2C_TIMING_HS3	0x5C
+#define HSI2C_TIMING_FS1	0x60
+#define HSI2C_TIMING_FS2	0x64
+#define HSI2C_TIMING_FS3	0x68
+#define HSI2C_TIMING_SLA	0x6C
+#define HSI2C_ADDR		0x70
+
+/* I2C_CTL Register bits */
+#define HSI2C_FUNC_MODE_I2C			(1u << 0)
+#define HSI2C_MASTER				(1u << 3)
+#define HSI2C_RXCHON				(1u << 6)
+#define HSI2C_TXCHON				(1u << 7)
+#define HSI2C_SW_RST				(1u << 31)
+
+/* I2C_FIFO_CTL Register bits */
+#define HSI2C_RXFIFO_EN				(1u << 0)
+#define HSI2C_TXFIFO_EN				(1u << 1)
+#define HSI2C_RXFIFO_TRIGGER_LEVEL(x)		((x) << 4)
+#define HSI2C_TXFIFO_TRIGGER_LEVEL(x)		((x) << 16)
+
+/* As per user manual FIFO max depth is 64bytes */
+#define HSI2C_FIFO_MAX				0x40
+/* default trigger levels for Tx and Rx FIFOs */
+#define HSI2C_DEF_TXFIFO_LVL			(HSI2C_FIFO_MAX - 0x30)
+#define HSI2C_DEF_RXFIFO_LVL			(HSI2C_FIFO_MAX - 0x10)
+
+/* I2C_TRAILING_CTL Register bits */
+#define HSI2C_TRAILING_COUNT			(0xf)
+
+/* I2C_INT_EN Register bits */
+#define HSI2C_INT_TX_ALMOSTEMPTY_EN		(1u << 0)
+#define HSI2C_INT_RX_ALMOSTFULL_EN		(1u << 1)
+#define HSI2C_INT_TRAILING_EN			(1u << 6)
+#define HSI2C_INT_I2C_EN			(1u << 9)
+
+/* I2C_INT_STAT Register bits */
+#define HSI2C_INT_TX_ALMOSTEMPTY		(1u << 0)
+#define HSI2C_INT_RX_ALMOSTFULL			(1u << 1)
+#define HSI2C_INT_TX_UNDERRUN			(1u << 2)
+#define HSI2C_INT_TX_OVERRUN			(1u << 3)
+#define HSI2C_INT_RX_UNDERRUN			(1u << 4)
+#define HSI2C_INT_RX_OVERRUN			(1u << 5)
+#define HSI2C_INT_TRAILING			(1u << 6)
+#define HSI2C_INT_I2C				(1u << 9)
+
+/* I2C_FIFO_STAT Register bits */
+#define HSI2C_RX_FIFO_EMPTY			(1u << 24)
+#define HSI2C_RX_FIFO_FULL			(1u << 23)
+#define HSI2C_RX_FIFO_LVL(x)			((x >> 16) & 0x7f)
+#define HSI2C_TX_FIFO_EMPTY			(1u << 8)
+#define HSI2C_TX_FIFO_FULL			(1u << 7)
+#define HSI2C_TX_FIFO_LVL(x)			((x >> 0) & 0x7f)
+
+/* I2C_CONF Register bits */
+#define HSI2C_AUTO_MODE				(1u << 31)
+#define HSI2C_10BIT_ADDR_MODE			(1u << 30)
+#define HSI2C_HS_MODE				(1u << 29)
+
+/* I2C_AUTO_CONF Register bits */
+#define HSI2C_READ_WRITE			(1u << 16)
+#define HSI2C_STOP_AFTER_TRANS			(1u << 17)
+#define HSI2C_MASTER_RUN			(1u << 31)
+
+/* I2C_TIMEOUT Register bits */
+#define HSI2C_TIMEOUT_EN			(1u << 31)
+#define HSI2C_TIMEOUT_MASK			0xff
+
+/* I2C_TRANS_STATUS register bits */
+#define HSI2C_MASTER_BUSY			(1u << 17)
+#define HSI2C_SLAVE_BUSY			(1u << 16)
+#define HSI2C_TIMEOUT_AUTO			(1u << 4)
+#define HSI2C_NO_DEV				(1u << 3)
+#define HSI2C_NO_DEV_ACK			(1u << 2)
+#define HSI2C_TRANS_ABORT			(1u << 1)
+#define HSI2C_TRANS_DONE			(1u << 0)
+
+/* I2C_ADDR register bits */
+#define HSI2C_SLV_ADDR_SLV(x)			((x & 0x3ff) << 0)
+#define HSI2C_SLV_ADDR_MAS(x)			((x & 0x3ff) << 10)
+#define HSI2C_MASTER_ID(x)			((x & 0xff) << 24)
+#define MASTER_ID(x)				((x & 0x7) + 0x08)
+
+/*
+ * Controller operating frequency, timing values for operation
+ * are calculated against this frequency
+ */
+#define HSI2C_HS_TX_CLOCK	1000000
+#define HSI2C_FS_TX_CLOCK	100000
+#define HSI2C_HIGH_SPD		1
+#define HSI2C_FAST_SPD		0
+
+#define EXYNOS5_I2C_TIMEOUT (msecs_to_jiffies(1000))
+
+struct exynos5_i2c {
+	struct i2c_adapter	adap;
+	unsigned int		suspended:1;
+
+	struct i2c_msg		*msg;
+	struct completion	msg_complete;
+	unsigned int		msg_ptr;
+
+	unsigned int		irq;
+
+	void __iomem		*regs;
+	struct clk		*clk;
+	struct device		*dev;
+	int			state;
+
+	spinlock_t		lock;		/* IRQ synchronization */
+
+	/*
+	 * Since the TRANS_DONE bit is cleared on read, and we may read it
+	 * either during an IRQ or after a transaction, keep track of its
+	 * state here.
+	 */
+	int			trans_done;
+
+	/* Controller operating frequency */
+	unsigned int		fs_clock;
+	unsigned int		hs_clock;
+
+	/*
+	 * HSI2C Controller can operate in
+	 * 1. High speed upto 3.4Mbps
+	 * 2. Fast speed upto 1Mbps
+	 */
+	int			speed_mode;
+};
+
+static const struct of_device_id exynos5_i2c_match[] = {
+	{ .compatible = "samsung,exynos5-hsi2c" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, exynos5_i2c_match);
+
+static void exynos5_i2c_clr_pend_irq(struct exynos5_i2c *i2c)
+{
+	writel(readl(i2c->regs + HSI2C_INT_STATUS),
+				i2c->regs + HSI2C_INT_STATUS);
+}
+
+/*
+ * exynos5_i2c_set_timing: updates the registers with appropriate
+ * timing values calculated
+ *
+ * Returns 0 on success, -EINVAL if the cycle length cannot
+ * be calculated.
+ */
+static int exynos5_i2c_set_timing(struct exynos5_i2c *i2c, int mode)
+{
+	u32 i2c_timing_s1;
+	u32 i2c_timing_s2;
+	u32 i2c_timing_s3;
+	u32 i2c_timing_sla;
+	unsigned int t_start_su, t_start_hd;
+	unsigned int t_stop_su;
+	unsigned int t_data_su, t_data_hd;
+	unsigned int t_scl_l, t_scl_h;
+	unsigned int t_sr_release;
+	unsigned int t_ftl_cycle;
+	unsigned int clkin = clk_get_rate(i2c->clk);
+	unsigned int div, utemp0 = 0, utemp1 = 0, clk_cycle;
+	unsigned int op_clk = (mode == HSI2C_HIGH_SPD) ?
+				i2c->hs_clock : i2c->fs_clock;
+
+	/*
+	 * FPCLK / FI2C =
+	 * (CLK_DIV + 1) * (TSCLK_L + TSCLK_H + 2) + 8 + 2 * FLT_CYCLE
+	 * utemp0 = (CLK_DIV + 1) * (TSCLK_L + TSCLK_H + 2)
+	 * utemp1 = (TSCLK_L + TSCLK_H + 2)
+	 */
+	t_ftl_cycle = (readl(i2c->regs + HSI2C_CONF) >> 16) & 0x7;
+	utemp0 = (clkin / op_clk) - 8 - 2 * t_ftl_cycle;
+
+	/* CLK_DIV max is 256 */
+	for (div = 0; div < 256; div++) {
+		utemp1 = utemp0 / (div + 1);
+
+		/*
+		 * SCL_L and SCL_H each has max value of 255
+		 * Hence, For the clk_cycle to the have right value
+		 * utemp1 has to be less then 512 and more than 4.
+		 */
+		if ((utemp1 < 512) && (utemp1 > 4)) {
+			clk_cycle = utemp1 - 2;
+			break;
+		} else if (div == 255) {
+			dev_warn(i2c->dev, "Failed to calculate divisor");
+			return -EINVAL;
+		}
+	}
+
+	t_scl_l = clk_cycle / 2;
+	t_scl_h = clk_cycle / 2;
+	t_start_su = t_scl_l;
+	t_start_hd = t_scl_l;
+	t_stop_su = t_scl_l;
+	t_data_su = t_scl_l / 2;
+	t_data_hd = t_scl_l / 2;
+	t_sr_release = clk_cycle;
+
+	i2c_timing_s1 = t_start_su << 24 | t_start_hd << 16 | t_stop_su << 8;
+	i2c_timing_s2 = t_data_su << 24 | t_scl_l << 8 | t_scl_h << 0;
+	i2c_timing_s3 = div << 16 | t_sr_release << 0;
+	i2c_timing_sla = t_data_hd << 0;
+
+	dev_dbg(i2c->dev, "tSTART_SU: %X, tSTART_HD: %X, tSTOP_SU: %X\n",
+		t_start_su, t_start_hd, t_stop_su);
+	dev_dbg(i2c->dev, "tDATA_SU: %X, tSCL_L: %X, tSCL_H: %X\n",
+		t_data_su, t_scl_l, t_scl_h);
+	dev_dbg(i2c->dev, "nClkDiv: %X, tSR_RELEASE: %X\n",
+		div, t_sr_release);
+	dev_dbg(i2c->dev, "tDATA_HD: %X\n", t_data_hd);
+
+	if (mode == HSI2C_HIGH_SPD) {
+		writel(i2c_timing_s1, i2c->regs + HSI2C_TIMING_HS1);
+		writel(i2c_timing_s2, i2c->regs + HSI2C_TIMING_HS2);
+		writel(i2c_timing_s3, i2c->regs + HSI2C_TIMING_HS3);
+	} else {
+		writel(i2c_timing_s1, i2c->regs + HSI2C_TIMING_FS1);
+		writel(i2c_timing_s2, i2c->regs + HSI2C_TIMING_FS2);
+		writel(i2c_timing_s3, i2c->regs + HSI2C_TIMING_FS3);
+	}
+	writel(i2c_timing_sla, i2c->regs + HSI2C_TIMING_SLA);
+
+	return 0;
+}
+
+static int exynos5_hsi2c_clock_setup(struct exynos5_i2c *i2c)
+{
+	/*
+	 * Configure the Fast speed timing values
+	 * Even the High Speed mode initially starts with Fast mode
+	 */
+	if (exynos5_i2c_set_timing(i2c, HSI2C_FAST_SPD)) {
+		dev_err(i2c->dev, "HSI2C FS Clock set up failed\n");
+		return -EINVAL;
+	}
+
+	/* configure the High speed timing values */
+	if (i2c->speed_mode == HSI2C_HIGH_SPD) {
+		if (exynos5_i2c_set_timing(i2c, HSI2C_HIGH_SPD)) {
+			dev_err(i2c->dev, "HSI2C HS Clock set up failed\n");
+			return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
+/*
+ * exynos5_i2c_init: configures the controller for I2C functionality
+ * Programs I2C controller for Master mode operation
+ */
+static void exynos5_i2c_init(struct exynos5_i2c *i2c)
+{
+	u32 i2c_conf = readl(i2c->regs + HSI2C_CONF);
+	u32 i2c_timeout = readl(i2c->regs + HSI2C_TIMEOUT);
+
+	/* Clear to disable Timeout */
+	i2c_timeout &= ~HSI2C_TIMEOUT_EN;
+	writel(i2c_timeout, i2c->regs + HSI2C_TIMEOUT);
+
+	writel((HSI2C_FUNC_MODE_I2C | HSI2C_MASTER),
+					i2c->regs + HSI2C_CTL);
+	writel(HSI2C_TRAILING_COUNT, i2c->regs + HSI2C_TRAILIG_CTL);
+
+	if (i2c->speed_mode == HSI2C_HIGH_SPD) {
+		writel(HSI2C_MASTER_ID(MASTER_ID(i2c->adap.nr)),
+					i2c->regs + HSI2C_ADDR);
+		i2c_conf |= HSI2C_HS_MODE;
+	}
+
+	writel(i2c_conf | HSI2C_AUTO_MODE, i2c->regs + HSI2C_CONF);
+}
+
+static void exynos5_i2c_reset(struct exynos5_i2c *i2c)
+{
+	u32 i2c_ctl;
+
+	/* Set and clear the bit for reset */
+	i2c_ctl = readl(i2c->regs + HSI2C_CTL);
+	i2c_ctl |= HSI2C_SW_RST;
+	writel(i2c_ctl, i2c->regs + HSI2C_CTL);
+
+	i2c_ctl = readl(i2c->regs + HSI2C_CTL);
+	i2c_ctl &= ~HSI2C_SW_RST;
+	writel(i2c_ctl, i2c->regs + HSI2C_CTL);
+
+	/* We don't expect calculations to fail during the run */
+	exynos5_hsi2c_clock_setup(i2c);
+	/* Initialize the configure registers */
+	exynos5_i2c_init(i2c);
+}
+
+/*
+ * exynos5_i2c_irq: top level IRQ servicing routine
+ *
+ * INT_STATUS registers gives the interrupt details. Further,
+ * FIFO_STATUS or TRANS_STATUS registers are to be check for detailed
+ * state of the bus.
+ */
+static irqreturn_t exynos5_i2c_irq(int irqno, void *dev_id)
+{
+	struct exynos5_i2c *i2c = dev_id;
+	u32 fifo_level, int_status, fifo_status, trans_status;
+	unsigned char byte;
+	int len = 0;
+
+	i2c->state = -EINVAL;
+
+	spin_lock(&i2c->lock);
+
+	int_status = readl(i2c->regs + HSI2C_INT_STATUS);
+	writel(int_status, i2c->regs + HSI2C_INT_STATUS);
+	fifo_status = readl(i2c->regs + HSI2C_FIFO_STATUS);
+
+	/* handle interrupt related to the transfer status */
+	if (int_status & HSI2C_INT_I2C) {
+		trans_status = readl(i2c->regs + HSI2C_TRANS_STATUS);
+		if (trans_status & HSI2C_NO_DEV_ACK) {
+			dev_dbg(i2c->dev, "No ACK from device\n");
+			i2c->state = -ENXIO;
+			goto stop;
+		} else if (trans_status & HSI2C_NO_DEV) {
+			dev_dbg(i2c->dev, "No device\n");
+			i2c->state = -ENXIO;
+			goto stop;
+		} else if (trans_status & HSI2C_TRANS_ABORT) {
+			dev_dbg(i2c->dev, "Deal with arbitration lose\n");
+			i2c->state = -EAGAIN;
+			goto stop;
+		} else if (trans_status & HSI2C_TIMEOUT_AUTO) {
+			dev_dbg(i2c->dev, "Accessing device timed out\n");
+			i2c->state = -EAGAIN;
+			goto stop;
+		} else if (trans_status & HSI2C_TRANS_DONE) {
+			i2c->trans_done = 1;
+			i2c->state = 0;
+		}
+	}
+
+	if ((i2c->msg->flags & I2C_M_RD) && (int_status &
+			(HSI2C_INT_TRAILING | HSI2C_INT_RX_ALMOSTFULL))) {
+		fifo_status = readl(i2c->regs + HSI2C_FIFO_STATUS);
+		fifo_level = HSI2C_RX_FIFO_LVL(fifo_status);
+		len = min(fifo_level, i2c->msg->len - i2c->msg_ptr);
+
+		while (len > 0) {
+			byte = (unsigned char)
+				readl(i2c->regs + HSI2C_RX_DATA);
+			i2c->msg->buf[i2c->msg_ptr++] = byte;
+			len--;
+		}
+		i2c->state = 0;
+	} else if (int_status & HSI2C_INT_TX_ALMOSTEMPTY) {
+		fifo_status = readl(i2c->regs + HSI2C_FIFO_STATUS);
+		fifo_level = HSI2C_TX_FIFO_LVL(fifo_status);
+
+		len = HSI2C_FIFO_MAX - fifo_level;
+		if (len > (i2c->msg->len - i2c->msg_ptr))
+			len = i2c->msg->len - i2c->msg_ptr;
+
+		while (len > 0) {
+			byte = i2c->msg->buf[i2c->msg_ptr++];
+			writel(byte, i2c->regs + HSI2C_TX_DATA);
+			len--;
+		}
+		i2c->state = 0;
+	}
+
+ stop:
+	if ((i2c->trans_done && (i2c->msg->len == i2c->msg_ptr)) ||
+	    (i2c->state < 0)) {
+		writel(0, i2c->regs + HSI2C_INT_ENABLE);
+		exynos5_i2c_clr_pend_irq(i2c);
+		complete(&i2c->msg_complete);
+	}
+
+	spin_unlock(&i2c->lock);
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * exynos5_i2c_wait_bus_idle
+ *
+ * Wait for the bus to go idle, indicated by the MASTER_BUSY bit being
+ * cleared.
+ *
+ * Returns -EBUSY if the bus cannot be bought to idle
+ */
+static int exynos5_i2c_wait_bus_idle(struct exynos5_i2c *i2c)
+{
+	unsigned long stop_time;
+	u32 trans_status;
+
+	/* wait for 100 milli seconds for the bus to be idle */
+	stop_time = jiffies + msecs_to_jiffies(100) + 1;
+	do {
+		trans_status = readl(i2c->regs + HSI2C_TRANS_STATUS);
+		if (!(trans_status & HSI2C_MASTER_BUSY))
+			return 0;
+
+		usleep_range(50, 200);
+	} while (time_before(jiffies, stop_time));
+
+	return -EBUSY;
+}
+
+/*
+ * exynos5_i2c_message_start: Configures the bus and starts the xfer
+ * i2c: struct exynos5_i2c pointer for the current bus
+ * stop: Enables stop after transfer if set. Set for last transfer of
+ *       in the list of messages.
+ *
+ * Configures the bus for read/write function
+ * Sets chip address to talk to, message length to be sent.
+ * Enables appropriate interrupts and sends start xfer command.
+ */
+static void exynos5_i2c_message_start(struct exynos5_i2c *i2c, int stop)
+{
+	u32 i2c_ctl;
+	u32 int_en = HSI2C_INT_I2C_EN;
+	u32 i2c_auto_conf = 0;
+	u32 fifo_ctl;
+	unsigned long flags;
+
+	i2c_ctl = readl(i2c->regs + HSI2C_CTL);
+	i2c_ctl &= ~(HSI2C_TXCHON | HSI2C_RXCHON);
+	fifo_ctl = HSI2C_RXFIFO_EN | HSI2C_TXFIFO_EN;
+
+	if (i2c->msg->flags & I2C_M_RD) {
+		i2c_ctl |= HSI2C_RXCHON;
+
+		i2c_auto_conf = HSI2C_READ_WRITE;
+
+		fifo_ctl |= HSI2C_RXFIFO_TRIGGER_LEVEL(HSI2C_DEF_TXFIFO_LVL);
+		int_en |= (HSI2C_INT_RX_ALMOSTFULL_EN |
+			HSI2C_INT_TRAILING_EN);
+	} else {
+		i2c_ctl |= HSI2C_TXCHON;
+
+		fifo_ctl |= HSI2C_TXFIFO_TRIGGER_LEVEL(HSI2C_DEF_RXFIFO_LVL);
+		int_en |= HSI2C_INT_TX_ALMOSTEMPTY_EN;
+	}
+
+	writel(HSI2C_SLV_ADDR_MAS(i2c->msg->addr), i2c->regs + HSI2C_ADDR);
+
+	writel(fifo_ctl, i2c->regs + HSI2C_FIFO_CTL);
+	writel(i2c_ctl, i2c->regs + HSI2C_CTL);
+
+
+	/*
+	 * Enable interrupts before starting the transfer so that we don't
+	 * miss any INT_I2C interrupts.
+	 */
+	spin_lock_irqsave(&i2c->lock, flags);
+	writel(int_en, i2c->regs + HSI2C_INT_ENABLE);
+
+	if (stop == 1)
+		i2c_auto_conf |= HSI2C_STOP_AFTER_TRANS;
+	i2c_auto_conf |= i2c->msg->len;
+	i2c_auto_conf |= HSI2C_MASTER_RUN;
+	writel(i2c_auto_conf, i2c->regs + HSI2C_AUTO_CONF);
+	spin_unlock_irqrestore(&i2c->lock, flags);
+}
+
+static int exynos5_i2c_xfer_msg(struct exynos5_i2c *i2c,
+			      struct i2c_msg *msgs, int stop)
+{
+	unsigned long timeout;
+	int ret;
+
+	i2c->msg = msgs;
+	i2c->msg_ptr = 0;
+	i2c->trans_done = 0;
+
+	INIT_COMPLETION(i2c->msg_complete);
+
+	exynos5_i2c_message_start(i2c, stop);
+
+	timeout = wait_for_completion_timeout(&i2c->msg_complete,
+					      EXYNOS5_I2C_TIMEOUT);
+	if (timeout == 0)
+		ret = -ETIMEDOUT;
+	else
+		ret = i2c->state;
+
+	/*
+	 * If this is the last message to be transfered (stop == 1)
+	 * Then check if the bus can be brought back to idle.
+	 */
+	if (ret == 0 && stop)
+		ret = exynos5_i2c_wait_bus_idle(i2c);
+
+	if (ret < 0) {
+		exynos5_i2c_reset(i2c);
+		if (ret == -ETIMEDOUT)
+			dev_warn(i2c->dev, "%s timeout\n",
+				 (msgs->flags & I2C_M_RD) ? "rx" : "tx");
+	}
+
+	/* Return the state as in interrupt routine */
+	return ret;
+}
+
+static int exynos5_i2c_xfer(struct i2c_adapter *adap,
+			struct i2c_msg *msgs, int num)
+{
+	struct exynos5_i2c *i2c = (struct exynos5_i2c *)adap->algo_data;
+	int i = 0, ret = 0, stop = 0;
+
+	if (i2c->suspended) {
+		dev_err(i2c->dev, "HS-I2C is not initialzed.\n");
+		return -EIO;
+	}
+
+	clk_prepare_enable(i2c->clk);
+
+	for (i = 0; i < num; i++, msgs++) {
+		stop = (i == num - 1);
+
+		ret = exynos5_i2c_xfer_msg(i2c, msgs, stop);
+
+		if (ret < 0)
+			goto out;
+	}
+
+	if (i == num) {
+		ret = num;
+	} else {
+		/* Only one message, cannot access the device */
+		if (i == 1)
+			ret = -EREMOTEIO;
+		else
+			ret = i;
+
+		dev_warn(i2c->dev, "xfer message failed\n");
+	}
+
+ out:
+	clk_disable_unprepare(i2c->clk);
+	return ret;
+}
+
+static u32 exynos5_i2c_func(struct i2c_adapter *adap)
+{
+	return I2C_FUNC_I2C | (I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK);
+}
+
+static const struct i2c_algorithm exynos5_i2c_algorithm = {
+	.master_xfer		= exynos5_i2c_xfer,
+	.functionality		= exynos5_i2c_func,
+};
+
+static int exynos5_i2c_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct exynos5_i2c *i2c;
+	struct resource *mem;
+	unsigned int op_clock;
+	int ret;
+
+	i2c = devm_kzalloc(&pdev->dev, sizeof(struct exynos5_i2c), GFP_KERNEL);
+	if (!i2c) {
+		dev_err(&pdev->dev, "no memory for state\n");
+		return -ENOMEM;
+	}
+
+	if (of_property_read_u32(np, "clock-frequency", &op_clock)) {
+		i2c->speed_mode = HSI2C_FAST_SPD;
+		i2c->fs_clock = HSI2C_FS_TX_CLOCK;
+	} else {
+		if (op_clock >= HSI2C_HS_TX_CLOCK) {
+			i2c->speed_mode = HSI2C_HIGH_SPD;
+			i2c->fs_clock = HSI2C_FS_TX_CLOCK;
+			i2c->hs_clock = op_clock;
+		} else {
+			i2c->speed_mode = HSI2C_FAST_SPD;
+			i2c->fs_clock = op_clock;
+		}
+	}
+
+	strlcpy(i2c->adap.name, "exynos5-i2c", sizeof(i2c->adap.name));
+	i2c->adap.owner   = THIS_MODULE;
+	i2c->adap.algo    = &exynos5_i2c_algorithm;
+	i2c->adap.retries = 3;
+
+	i2c->dev = &pdev->dev;
+	i2c->clk = devm_clk_get(&pdev->dev, "hsi2c");
+	if (IS_ERR(i2c->clk)) {
+		dev_err(&pdev->dev, "cannot get clock\n");
+		return -ENOENT;
+	}
+
+	clk_prepare_enable(i2c->clk);
+
+	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	i2c->regs = devm_ioremap_resource(&pdev->dev, mem);
+	if (IS_ERR(i2c->regs)) {
+		ret = PTR_ERR(i2c->regs);
+		goto err_clk;
+	}
+
+	i2c->adap.dev.of_node = np;
+	i2c->adap.algo_data = i2c;
+	i2c->adap.dev.parent = &pdev->dev;
+
+	/* Clear pending interrupts from u-boot or misc causes */
+	exynos5_i2c_clr_pend_irq(i2c);
+
+	spin_lock_init(&i2c->lock);
+	init_completion(&i2c->msg_complete);
+
+	i2c->irq = ret = platform_get_irq(pdev, 0);
+	if (ret <= 0) {
+		dev_err(&pdev->dev, "cannot find HS-I2C IRQ\n");
+		ret = -EINVAL;
+		goto err_clk;
+	}
+
+	ret = devm_request_irq(&pdev->dev, i2c->irq, exynos5_i2c_irq,
+				IRQF_NO_SUSPEND | IRQF_ONESHOT,
+				dev_name(&pdev->dev), i2c);
+
+	if (ret != 0) {
+		dev_err(&pdev->dev, "cannot request HS-I2C IRQ %d\n", i2c->irq);
+		goto err_clk;
+	}
+
+	ret = exynos5_hsi2c_clock_setup(i2c);
+	if (ret)
+		goto err_clk;
+
+	exynos5_i2c_init(i2c);
+
+	ret = i2c_add_adapter(&i2c->adap);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "failed to add bus to i2c core\n");
+		goto err_clk;
+	}
+
+	platform_set_drvdata(pdev, i2c);
+
+	clk_disable_unprepare(i2c->clk);
+
+	return 0;
+
+ err_clk:
+	clk_disable_unprepare(i2c->clk);
+	return ret;
+}
+
+static int exynos5_i2c_remove(struct platform_device *pdev)
+{
+	struct exynos5_i2c *i2c = platform_get_drvdata(pdev);
+
+	i2c_del_adapter(&i2c->adap);
+	clk_disable_unprepare(i2c->clk);
+
+	return 0;
+}
+
+static int exynos5_i2c_suspend_noirq(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct exynos5_i2c *i2c = platform_get_drvdata(pdev);
+
+	i2c->suspended = 1;
+
+	return 0;
+}
+
+static int exynos5_i2c_resume_noirq(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct exynos5_i2c *i2c = platform_get_drvdata(pdev);
+	int ret = 0;
+
+	clk_prepare_enable(i2c->clk);
+
+	ret = exynos5_hsi2c_clock_setup(i2c);
+	if (ret) {
+		clk_disable_unprepare(i2c->clk);
+		return ret;
+	}
+
+	exynos5_i2c_init(i2c);
+	clk_disable_unprepare(i2c->clk);
+	i2c->suspended = 0;
+
+	return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(exynos5_i2c_dev_pm_ops, exynos5_i2c_suspend_noirq,
+			 exynos5_i2c_resume_noirq);
+
+static struct platform_driver exynos5_i2c_driver = {
+	.probe		= exynos5_i2c_probe,
+	.remove		= exynos5_i2c_remove,
+	.driver		= {
+		.owner	= THIS_MODULE,
+		.name	= "exynos5-hsi2c",
+		.pm	= &exynos5_i2c_dev_pm_ops,
+		.of_match_table = exynos5_i2c_match,
+	},
+};
+
+module_platform_driver(exynos5_i2c_driver);
+
+MODULE_DESCRIPTION("Exynos5 HS-I2C Bus driver");
+MODULE_AUTHOR("Naveen Krishna Chatradhi, <ch.naveen@samsung.com>");
+MODULE_AUTHOR("Taekgyun Ko, <taeggyun.ko@samsung.com>");
+MODULE_LICENSE("GPL v2");
-- 
cgit 


From fb44519de929d1d9bba967645c6d9def8784d857 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Tue, 22 Oct 2013 18:34:01 +0000
Subject: ixgbe: Reduce memory consumption with larger page sizes

The ixgbe driver allocates pages for its receive rings. It currently
uses 512 pages, regardless of page size. During receive handling it
adds the unused part of the page back into the rx ring, avoiding the
need for a new allocation.

On a ppc64 box with 64 threads and 64kB pages, we end up with
512 entries * 64 rx queues * 64kB = 2GB memory used. Even more of a
concern is that we use up 2GB of IOMMU space in order to map all this
memory.

The driver makes a number of decisions based on if PAGE_SIZE is less
than 8kB, so use this as the breakpoint and only allocate 128 entries
on 8kB or larger page sizes.

Signed-off-by: Anton Blanchard <anton@samba.org>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index f51fd1f4fb49..09149143ee0f 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -67,7 +67,11 @@
 #define IXGBE_MAX_TXD			   4096
 #define IXGBE_MIN_TXD			     64
 
+#if (PAGE_SIZE < 8192)
 #define IXGBE_DEFAULT_RXD		    512
+#else
+#define IXGBE_DEFAULT_RXD		    128
+#endif
 #define IXGBE_MAX_RXD			   4096
 #define IXGBE_MIN_RXD			     64
 
-- 
cgit 


From 8b161f0ee911369232b5b5c18f84b5072f5bd09e Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Thu, 31 Oct 2013 17:25:16 +0800
Subject: iommu/vt-d: Use for_each_drhd_unit() instead of list_for_each_entry()

Use for_each_drhd_unit() instead of list_for_each_entry for
better readability.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---
 drivers/iommu/dmar.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c
index 785675a56a10..da2d0d926e40 100644
--- a/drivers/iommu/dmar.c
+++ b/drivers/iommu/dmar.c
@@ -403,7 +403,7 @@ dmar_find_matched_drhd_unit(struct pci_dev *dev)
 
 	dev = pci_physfn(dev);
 
-	list_for_each_entry(dmaru, &dmar_drhd_units, list) {
+	for_each_drhd_unit(dmaru) {
 		drhd = container_of(dmaru->hdr,
 				    struct acpi_dmar_hardware_unit,
 				    header);
-- 
cgit 


From bca2b916f3d5c5bcb3d9d38fc1e4cb4d83b1d8a8 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Thu, 31 Oct 2013 17:26:04 +0800
Subject: iommu/vt-d: Use list_for_each_entry_safe() for dmar_domain->devices
 traversal

Replace list_for_each_safe() + list_entry() with the simpler
list_for_each_entry_safe().

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---
 drivers/iommu/intel-iommu.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 40203ada635e..43b9bfea48fa 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -3781,11 +3781,10 @@ static void iommu_detach_dependent_devices(struct intel_iommu *iommu,
 static void domain_remove_one_dev_info(struct dmar_domain *domain,
 					  struct pci_dev *pdev)
 {
-	struct device_domain_info *info;
+	struct device_domain_info *info, *tmp;
 	struct intel_iommu *iommu;
 	unsigned long flags;
 	int found = 0;
-	struct list_head *entry, *tmp;
 
 	iommu = device_to_iommu(pci_domain_nr(pdev->bus), pdev->bus->number,
 				pdev->devfn);
@@ -3793,8 +3792,7 @@ static void domain_remove_one_dev_info(struct dmar_domain *domain,
 		return;
 
 	spin_lock_irqsave(&device_domain_lock, flags);
-	list_for_each_safe(entry, tmp, &domain->devices) {
-		info = list_entry(entry, struct device_domain_info, link);
+	list_for_each_entry_safe(info, tmp, &domain->devices, link) {
 		if (info->segment == pci_domain_nr(pdev->bus) &&
 		    info->bus == pdev->bus->number &&
 		    info->devfn == pdev->devfn) {
-- 
cgit 


From f880d07bc5bc9f453be7b1fc9c1a34853719d148 Mon Sep 17 00:00:00 2001
From: Don Skidmore <donald.c.skidmore@intel.com>
Date: Wed, 23 Oct 2013 02:17:52 +0000
Subject: ixgbe: cleanup IXGBE_DESC_UNUSED

This patch just replaces the IXGBE_DESC_UNUSED macro with a like named
inline function ixgbevf_desc_unused. The inline function makes the logic
a bit more readable.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf.h      | 10 +++++++---
 drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 10 +++++-----
 2 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
index acf38067a700..8971e2d0a984 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf.h
@@ -286,9 +286,13 @@ static inline bool ixgbevf_qv_disable(struct ixgbevf_q_vector *q_vector)
 	((_eitr) ? (1000000000 / ((_eitr) * 256)) : 8)
 #define EITR_REG_TO_INTS_PER_SEC EITR_INTS_PER_SEC_TO_REG
 
-#define IXGBE_DESC_UNUSED(R) \
-	((((R)->next_to_clean > (R)->next_to_use) ? 0 : (R)->count) + \
-	(R)->next_to_clean - (R)->next_to_use - 1)
+static inline u16 ixgbevf_desc_unused(struct ixgbevf_ring *ring)
+{
+	u16 ntc = ring->next_to_clean;
+	u16 ntu = ring->next_to_use;
+
+	return ((ntc > ntu) ? 0 : ring->count) + ntc - ntu - 1;
+}
 
 #define IXGBEVF_RX_DESC(R, i)	    \
 	(&(((union ixgbe_adv_rx_desc *)((R)->desc))[i]))
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 9685354e6b9d..038bfc8b7616 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -251,7 +251,7 @@ static bool ixgbevf_clean_tx_irq(struct ixgbevf_q_vector *q_vector,
 
 #define TX_WAKE_THRESHOLD (DESC_NEEDED * 2)
 	if (unlikely(count && netif_carrier_ok(tx_ring->netdev) &&
-		     (IXGBE_DESC_UNUSED(tx_ring) >= TX_WAKE_THRESHOLD))) {
+		     (ixgbevf_desc_unused(tx_ring) >= TX_WAKE_THRESHOLD))) {
 		/* Make sure that anybody stopping the queue after this
 		 * sees the new next_to_clean.
 		 */
@@ -529,7 +529,7 @@ next_desc:
 	}
 
 	rx_ring->next_to_clean = i;
-	cleaned_count = IXGBE_DESC_UNUSED(rx_ring);
+	cleaned_count = ixgbevf_desc_unused(rx_ring);
 
 	if (cleaned_count)
 		ixgbevf_alloc_rx_buffers(adapter, rx_ring, cleaned_count);
@@ -1380,7 +1380,7 @@ static void ixgbevf_configure(struct ixgbevf_adapter *adapter)
 	for (i = 0; i < adapter->num_rx_queues; i++) {
 		struct ixgbevf_ring *ring = &adapter->rx_ring[i];
 		ixgbevf_alloc_rx_buffers(adapter, ring,
-					 IXGBE_DESC_UNUSED(ring));
+					 ixgbevf_desc_unused(ring));
 	}
 }
 
@@ -3102,7 +3102,7 @@ static int __ixgbevf_maybe_stop_tx(struct ixgbevf_ring *tx_ring, int size)
 
 	/* We need to check again in a case another CPU has just
 	 * made room available. */
-	if (likely(IXGBE_DESC_UNUSED(tx_ring) < size))
+	if (likely(ixgbevf_desc_unused(tx_ring) < size))
 		return -EBUSY;
 
 	/* A reprieve! - use start_queue because it doesn't call schedule */
@@ -3113,7 +3113,7 @@ static int __ixgbevf_maybe_stop_tx(struct ixgbevf_ring *tx_ring, int size)
 
 static int ixgbevf_maybe_stop_tx(struct ixgbevf_ring *tx_ring, int size)
 {
-	if (likely(IXGBE_DESC_UNUSED(tx_ring) >= size))
+	if (likely(ixgbevf_desc_unused(tx_ring) >= size))
 		return 0;
 	return __ixgbevf_maybe_stop_tx(tx_ring, size);
 }
-- 
cgit 


From 8a788659af75ec0d82412cdca81953482529b342 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 8 Oct 2013 16:21:03 +0530
Subject: iommu/tegra-gart: Staticize tegra_gart_pm_ops

'tegra_gart_pm_ops' is local to this file. Make it static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---
 drivers/iommu/tegra-gart.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/tegra-gart.c b/drivers/iommu/tegra-gart.c
index f75483a3a2ef..dba1a9fd5070 100644
--- a/drivers/iommu/tegra-gart.c
+++ b/drivers/iommu/tegra-gart.c
@@ -411,7 +411,7 @@ static int tegra_gart_remove(struct platform_device *pdev)
 	return 0;
 }
 
-const struct dev_pm_ops tegra_gart_pm_ops = {
+static const struct dev_pm_ops tegra_gart_pm_ops = {
 	.suspend	= tegra_gart_suspend,
 	.resume		= tegra_gart_resume,
 };
-- 
cgit 


From a33a97c5c72cd0ffe292c0fd4c5f9c8957431a04 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 8 Oct 2013 16:21:04 +0530
Subject: iommu/tegra-smmu: Staticize tegra_smmu_pm_ops

'tegra_smmu_pm_ops' is used only in this file. Make it static.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Hiroshi Doyu <hdoyu@nvidia.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---
 drivers/iommu/tegra-smmu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c
index 34374b3bc13b..605b5b46a903 100644
--- a/drivers/iommu/tegra-smmu.c
+++ b/drivers/iommu/tegra-smmu.c
@@ -1254,7 +1254,7 @@ static int tegra_smmu_remove(struct platform_device *pdev)
 	return 0;
 }
 
-const struct dev_pm_ops tegra_smmu_pm_ops = {
+static const struct dev_pm_ops tegra_smmu_pm_ops = {
 	.suspend	= tegra_smmu_suspend,
 	.resume		= tegra_smmu_resume,
 };
-- 
cgit 


From cf78959c0d7afbde31498afc4212294c28e2c278 Mon Sep 17 00:00:00 2001
From: Emil Tantilov <emil.s.tantilov@intel.com>
Date: Sat, 26 Oct 2013 08:13:20 +0000
Subject: ixgbe: fix inconsistent clearing of the multicast table

This patch resolves an issue where the MTA table can be cleared when the
interface is reset while in promisc mode. As result IPv6 traffic between
VFs will be interrupted.

This patch makes the update of the MTA table unconditional to avoid the
inconsistent clearing on reset.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index a7d1a1c43f12..5191b3ca9a26 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -3823,14 +3823,6 @@ void ixgbe_set_rx_mode(struct net_device *netdev)
 		if (netdev->flags & IFF_ALLMULTI) {
 			fctrl |= IXGBE_FCTRL_MPE;
 			vmolr |= IXGBE_VMOLR_MPE;
-		} else {
-			/*
-			 * Write addresses to the MTA, if the attempt fails
-			 * then we should just turn on promiscuous mode so
-			 * that we can at least receive multicast traffic
-			 */
-			hw->mac.ops.update_mc_addr_list(hw, netdev);
-			vmolr |= IXGBE_VMOLR_ROMPE;
 		}
 		ixgbe_vlan_filter_enable(adapter);
 		hw->addr_ctrl.user_set_promisc = false;
@@ -3847,6 +3839,13 @@ void ixgbe_set_rx_mode(struct net_device *netdev)
 		vmolr |= IXGBE_VMOLR_ROPE;
 	}
 
+	/* Write addresses to the MTA, if the attempt fails
+	 * then we should just turn on promiscuous mode so
+	 * that we can at least receive multicast traffic
+	 */
+	hw->mac.ops.update_mc_addr_list(hw, netdev);
+	vmolr |= IXGBE_VMOLR_ROMPE;
+
 	if (adapter->num_vfs)
 		ixgbe_restore_vf_multicasts(adapter);
 
-- 
cgit 


From 53805eca3d89b095062c11a6798689bb0af09216 Mon Sep 17 00:00:00 2001
From: Michael Hudson-Doyle <michael.hudson@linaro.org>
Date: Thu, 31 Oct 2013 16:47:45 -0700
Subject: perf tools: Remove cast of non-variadic function to variadic

The 4fb71074a570 (perf ui/hist: Consolidate hpp helpers) cset introduced
a cast of percent_color_snprintf to a function pointer type with
varargs.  Change percent_color_snprintf to be variadic and remove the
cast.

The symptom of this was all percentages being reported as 0.00% in perf
report --stdio output on the armhf arch.

Signed-off-by: Michael Hudson-Doyle <michael.hudson@linaro.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: Jean Pihet <jean.pihet@linaro.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/87zjppvw7y.fsf@canonical.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/ui/hist.c    |  2 +-
 tools/perf/util/color.c | 11 +++++++++--
 tools/perf/util/color.h |  2 +-
 3 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index 0a193281eba8..78f4c92e9b73 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -117,7 +117,7 @@ static int hpp__color_##_type(struct perf_hpp_fmt *fmt __maybe_unused,		\
 			      struct perf_hpp *hpp, struct hist_entry *he) 	\
 {										\
 	return __hpp__fmt(hpp, he, he_get_##_field, " %6.2f%%",			\
-			  (hpp_snprint_fn)percent_color_snprintf, true);	\
+			  percent_color_snprintf, true);			\
 }
 
 #define __HPP_ENTRY_PERCENT_FN(_type, _field)					\
diff --git a/tools/perf/util/color.c b/tools/perf/util/color.c
index 11e46da17bbb..66e44a5019d5 100644
--- a/tools/perf/util/color.c
+++ b/tools/perf/util/color.c
@@ -318,8 +318,15 @@ int percent_color_fprintf(FILE *fp, const char *fmt, double percent)
 	return r;
 }
 
-int percent_color_snprintf(char *bf, size_t size, const char *fmt, double percent)
+int percent_color_snprintf(char *bf, size_t size, const char *fmt, ...)
 {
-	const char *color = get_percent_color(percent);
+	va_list args;
+	double percent;
+	const char *color;
+
+	va_start(args, fmt);
+	percent = va_arg(args, double);
+	va_end(args);
+	color = get_percent_color(percent);
 	return color_snprintf(bf, size, color, fmt, percent);
 }
diff --git a/tools/perf/util/color.h b/tools/perf/util/color.h
index dea082b79602..fced3840e99c 100644
--- a/tools/perf/util/color.h
+++ b/tools/perf/util/color.h
@@ -39,7 +39,7 @@ int color_fprintf(FILE *fp, const char *color, const char *fmt, ...);
 int color_snprintf(char *bf, size_t size, const char *color, const char *fmt, ...);
 int color_fprintf_ln(FILE *fp, const char *color, const char *fmt, ...);
 int color_fwrite_lines(FILE *fp, const char *color, size_t count, const char *buf);
-int percent_color_snprintf(char *bf, size_t size, const char *fmt, double percent);
+int percent_color_snprintf(char *bf, size_t size, const char *fmt, ...);
 int percent_color_fprintf(FILE *fp, const char *fmt, double percent);
 const char *get_percent_color(double percent);
 
-- 
cgit 


From 7d02c4d64dbbc7dc1996d32171067d3ad8f06ae9 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Tue, 29 Oct 2013 23:37:40 +0100
Subject: iommu/shmobile: Enable the driver on all ARM platforms

Renesas ARM platforms are transitioning from single-platform to
multi-platform kernels using the new ARCH_SHMOBILE_MULTI. Make the
driver available on all ARM platforms to enable it on both ARCH_SHMOBILE
and ARCH_SHMOBILE_MULTI, and increase build testing coverage with
COMPILE_TEST.

Cc: Joerg Roedel <joro@8bytes.org>
Cc: iommu@lists.linux-foundation.org
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
---
 drivers/iommu/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index c880ebaf1553..9fd51e51e78b 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -206,7 +206,7 @@ config SHMOBILE_IPMMU_TLB
 config SHMOBILE_IOMMU
 	bool "IOMMU for Renesas IPMMU/IPMMUI"
 	default n
-	depends on (ARM && ARCH_SHMOBILE)
+	depends on ARM || COMPILE_TEST
 	select IOMMU_API
 	select ARM_DMA_USE_IOMMU
 	select SHMOBILE_IPMMU
-- 
cgit 


From 32bf5bd181026fc99c0e15045abe409167285ba8 Mon Sep 17 00:00:00 2001
From: Wei Yang <weiyang@linux.vnet.ibm.com>
Date: Sun, 22 Sep 2013 16:49:24 +0800
Subject: perf bench: Fix two warnings
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

There are two warnings in bench/numa, when building this on 32-bit
machine.

The warning output is attached:

bench/numa.c:1113:20: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
bench/numa.c:1161:6: error: format ‘%lx’ expects argument of t'long unsigned int’, but argument 5 has type ‘u64’ [-Werror=format]

This patch fixes these two warnings.

Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Link: http://lkml.kernel.org/r/1379839764-9245-1-git-send-email-weiyang@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/bench/numa.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/bench/numa.c b/tools/perf/bench/numa.c
index 30d1c3225b46..a73c4ed8af17 100644
--- a/tools/perf/bench/numa.c
+++ b/tools/perf/bench/numa.c
@@ -1110,7 +1110,7 @@ static void *worker_thread(void *__tdata)
 		/* Check whether our max runtime timed out: */
 		if (g->p.nr_secs) {
 			timersub(&stop, &start0, &diff);
-			if (diff.tv_sec >= g->p.nr_secs) {
+			if (diff.tv_sec >= (time_t)g->p.nr_secs) {
 				g->stop_work = true;
 				break;
 			}
@@ -1157,7 +1157,7 @@ static void *worker_thread(void *__tdata)
 			runtime_ns_max += diff.tv_usec * 1000;
 
 			if (details >= 0) {
-				printf(" #%2d / %2d: %14.2lf nsecs/op [val: %016lx]\n",
+				printf(" #%2d / %2d: %14.2lf nsecs/op [val: %016"PRIu64"]\n",
 					process_nr, thread_nr, runtime_ns_max / bytes_done, val);
 			}
 			fflush(stdout);
-- 
cgit 


From 46d525eae2a076adfde92dca1db12d9a3b8ad8bb Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Thu, 31 Oct 2013 09:46:59 -0300
Subject: perf test: Update command line callchain attribute tests

The "struct perf_event_attr setup" entry in 'perf test' is in fact a
series of tests that will exec the tools, passing different sets of
command line arguments to then intercept the sys_perf_event_open
syscall, in user space, to check that the perf_event_attr->sample_type
and other feature request bits are setup as expected.

We recently restored the callchain requesting command line argument, -g,
to not require a parameter ("dwarf" or "fp"), instead using a default
("fp" for now) and making the long option variant, --call-chain, be the
one to be used when a different callchain collection method is
preferred.

The "struct perf_event_attr setup" test failed because we forgot to
update the tests involving callchains, not switching from, '-g dwarf' to
'--call-chain dwarf', making 'perf test' detect it:

  [root@sandy ~]# perf test -v 13
  13: struct perf_event_attr setup                           :
  --- start ---
  running '/home/acme/libexec/perf-core/tests/attr/test-record-basic'
  running '/home/acme/libexec/perf-core/tests/attr/test-record-branch-any'
  <SNIP>
  running '/home/acme/libexec/perf-core/tests/attr/test-record-graph-default'
  running '/home/acme/libexec/perf-core/tests/attr/test-record-graph-dwarf'
  expected sample_type=12583, got 295
  expected exclude_callchain_user=1, got 0
  expected sample_stack_user=8192, got 0
  FAILED '/home/acme/libexec/perf-core/tests/attr/test-record-graph-dwarf' - match failure
  ---- end ----
  struct perf_event_attr setup: FAILED!
  [root@sandy ~]#

Fix all of them now to use --call-chain when explicitely specifying a
method.

There is still work to do, as '-g fp', for instance, passed without
problems.

In that case 'perf test' saw no problems as the intercepted syscall got
the bits as expected, i.e. the default is 'fp', but the fact that 'fp'
may be an existing program and the specified workload would then be
passed as a parameter to it is an usability problem that needs fixing.

Next merge window tho.

Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-jr3oq1k5iywnp7vvqlslzydm@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/tests/attr/README                    | 6 +++---
 tools/perf/tests/attr/test-record-graph-default | 2 +-
 tools/perf/tests/attr/test-record-graph-dwarf   | 2 +-
 tools/perf/tests/attr/test-record-graph-fp      | 2 +-
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/tools/perf/tests/attr/README b/tools/perf/tests/attr/README
index d102957cd59a..430024f618f1 100644
--- a/tools/perf/tests/attr/README
+++ b/tools/perf/tests/attr/README
@@ -44,9 +44,9 @@ Following tests are defined (with perf commands):
   perf record -c 123 kill                       (test-record-count)
   perf record -d kill                           (test-record-data)
   perf record -F 100 kill                       (test-record-freq)
-  perf record -g -- kill                        (test-record-graph-default)
-  perf record -g dwarf -- kill                  (test-record-graph-dwarf)
-  perf record -g fp kill                        (test-record-graph-fp)
+  perf record -g kill                           (test-record-graph-default)
+  perf record --call-graph dwarf kill		(test-record-graph-dwarf)
+  perf record --call-graph fp kill              (test-record-graph-fp)
   perf record --group -e cycles,instructions kill (test-record-group)
   perf record -e '{cycles,instructions}' kill   (test-record-group1)
   perf record -D kill                           (test-record-no-delay)
diff --git a/tools/perf/tests/attr/test-record-graph-default b/tools/perf/tests/attr/test-record-graph-default
index 833d1849d767..853597a9a8f6 100644
--- a/tools/perf/tests/attr/test-record-graph-default
+++ b/tools/perf/tests/attr/test-record-graph-default
@@ -1,6 +1,6 @@
 [config]
 command = record
-args    = -g -- kill >/dev/null 2>&1
+args    = -g kill >/dev/null 2>&1
 
 [event:base-record]
 sample_type=295
diff --git a/tools/perf/tests/attr/test-record-graph-dwarf b/tools/perf/tests/attr/test-record-graph-dwarf
index e93e082f5208..d6f324ea578c 100644
--- a/tools/perf/tests/attr/test-record-graph-dwarf
+++ b/tools/perf/tests/attr/test-record-graph-dwarf
@@ -1,6 +1,6 @@
 [config]
 command = record
-args    = -g dwarf -- kill >/dev/null 2>&1
+args    = --call-graph dwarf -- kill >/dev/null 2>&1
 
 [event:base-record]
 sample_type=12583
diff --git a/tools/perf/tests/attr/test-record-graph-fp b/tools/perf/tests/attr/test-record-graph-fp
index 7cef3743f03f..055e3bee7993 100644
--- a/tools/perf/tests/attr/test-record-graph-fp
+++ b/tools/perf/tests/attr/test-record-graph-fp
@@ -1,6 +1,6 @@
 [config]
 command = record
-args    = -g fp kill >/dev/null 2>&1
+args    = --call-graph fp kill >/dev/null 2>&1
 
 [event:base-record]
 sample_type=295
-- 
cgit 


From dbed71416332d24e4e9ba26dcf90cd86a93c06f1 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Fri, 1 Nov 2013 15:11:14 +0000
Subject: KEYS: The RSA public key algorithm needs to select MPILIB

The RSA public key algorithm needs to select MPILIB directly in Kconfig as the
'select' directive is not recursive and is thus MPILIB is not enabled by
selecting MPILIB_EXTRA.

Without this, the following errors can occur:

	crypto/built-in.o: In function `RSA_verify_signature':
	rsa.c:(.text+0x1d347): undefined reference to `mpi_get_nbits'
	rsa.c:(.text+0x1d354): undefined reference to `mpi_get_nbits'
	rsa.c:(.text+0x1d36e): undefined reference to `mpi_cmp_ui'
	rsa.c:(.text+0x1d382): undefined reference to `mpi_cmp'
	rsa.c:(.text+0x1d391): undefined reference to `mpi_alloc'
	rsa.c:(.text+0x1d3b0): undefined reference to `mpi_powm'
	rsa.c:(.text+0x1d3c3): undefined reference to `mpi_free'
	rsa.c:(.text+0x1d3d8): undefined reference to `mpi_get_buffer'
	rsa.c:(.text+0x1d4d4): undefined reference to `mpi_free'
	rsa.c:(.text+0x1d503): undefined reference to `mpi_get_nbits'

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
---
 crypto/asymmetric_keys/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/crypto/asymmetric_keys/Kconfig b/crypto/asymmetric_keys/Kconfig
index 82e7d6b0c276..03a6eb95ab50 100644
--- a/crypto/asymmetric_keys/Kconfig
+++ b/crypto/asymmetric_keys/Kconfig
@@ -23,6 +23,7 @@ config ASYMMETRIC_PUBLIC_KEY_SUBTYPE
 config PUBLIC_KEY_ALGO_RSA
 	tristate "RSA public-key algorithm"
 	select MPILIB_EXTRA
+	select MPILIB
 	help
 	  This option enables support for the RSA algorithm (PKCS#1, RFC3447).
 
-- 
cgit 


From 6b87e700cd65120b70aaa097a8f4e7f22f1945ee Mon Sep 17 00:00:00 2001
From: Andrew Murray <amurray@embedded-bits.co.uk>
Date: Sat, 26 Oct 2013 18:23:25 +0100
Subject: PCI: Update pcie_ports 'auto' behavior for non-ACPI platforms

The pcie_ports parameter, which defaults to 'auto', allows a user
to specify if PCIe port services are disabled ('compat'), always
enabled ('native'), or only used when allowed by the BIOS
('auto').

Where CONFIG_ACPI isn't enabled, as is often the case for non
x86/ia64 platforms, the 'auto' behavior results in that of
'compat'. Thus in order to use port services on these platforms
'pcie_ports=native' must be added to the kernel command line.

This patch results in the 'native' behavior being followed where
'auto' is selected and ACPI is not enabled.

Signed-off-by: Andrew Murray <amurray@embedded-bits.co.uk>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/pcie/portdrv_core.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index 31063ac30992..08d131f7815b 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -260,13 +260,14 @@ static int get_port_device_capability(struct pci_dev *dev)
 	if (pcie_ports_disabled)
 		return 0;
 
-	err = pcie_port_platform_notify(dev, &cap_mask);
-	if (!pcie_ports_auto) {
-		cap_mask = PCIE_PORT_SERVICE_PME | PCIE_PORT_SERVICE_HP
-				| PCIE_PORT_SERVICE_VC;
-		if (pci_aer_available())
-			cap_mask |= PCIE_PORT_SERVICE_AER;
-	} else if (err) {
+	cap_mask = PCIE_PORT_SERVICE_PME | PCIE_PORT_SERVICE_HP
+			| PCIE_PORT_SERVICE_VC;
+	if (pci_aer_available())
+		cap_mask |= PCIE_PORT_SERVICE_AER;
+
+	if (pcie_ports_auto) {
+		err = pcie_port_platform_notify(dev, &cap_mask);
+		if (err)
 			return 0;
 	}
 
-- 
cgit 


From 12207f69b3ef4d6eea6a5568281e49f671977ab1 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@redhat.com>
Date: Fri, 1 Nov 2013 10:49:32 -0400
Subject: nfs: fix oops when trying to set SELinux label

Chao reported the following oops when testing labeled NFS:

BUG: unable to handle kernel NULL pointer dereference at           (null)
IP: [<ffffffffa0568703>] nfs4_xdr_enc_setattr+0x43/0x110 [nfsv4]
PGD 277bbd067 PUD 2777ea067 PMD 0
Oops: 0000 [#1] SMP
Modules linked in: rpcsec_gss_krb5 nfsv4 dns_resolver nfs fscache sg coretemp kvm_intel kvm crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel lrw gf128mul iTCO_wdt glue_helper ablk_helper cryptd iTCO_vendor_support bnx2 pcspkr serio_raw i7core_edac cdc_ether microcode usbnet edac_core mii lpc_ich i2c_i801 mfd_core shpchp ioatdma dca acpi_cpufreq mperf nfsd auth_rpcgss nfs_acl lockd sunrpc xfs libcrc32c sr_mod sd_mod cdrom crc_t10dif mgag200 syscopyarea sysfillrect sysimgblt i2c_algo_bit drm_kms_helper ata_generic ttm pata_acpi drm ata_piix libata megaraid_sas i2c_core dm_mirror dm_region_hash dm_log dm_mod
CPU: 4 PID: 25657 Comm: chcon Not tainted 3.10.0-33.el7.x86_64 #1
Hardware name: IBM System x3550 M3 -[7944OEJ]-/90Y4784     , BIOS -[D6E150CUS-1.11]- 02/08/2011
task: ffff880178397220 ti: ffff8801595d2000 task.ti: ffff8801595d2000
RIP: 0010:[<ffffffffa0568703>]  [<ffffffffa0568703>] nfs4_xdr_enc_setattr+0x43/0x110 [nfsv4]
RSP: 0018:ffff8801595d3888  EFLAGS: 00010296
RAX: 0000000000000000 RBX: ffff8801595d3b30 RCX: 0000000000000b4c
RDX: ffff8801595d3b30 RSI: ffff8801595d38e0 RDI: ffff880278b6ec00
RBP: ffff8801595d38c8 R08: ffff8801595d3b30 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801595d38e0
R13: ffff880277a4a780 R14: ffffffffa05686c0 R15: ffff8802765f206c
FS:  00007f2c68486800(0000) GS:ffff88027fc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000027651a000 CR4: 00000000000007e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Stack:
 0000000000000000 0000000000000000 0000000000000000 0000000000000000
 0000000000000000 ffff880277865800 ffff880278b6ec00 ffff880277a4a780
 ffff8801595d3948 ffffffffa02ad926 ffff8801595d3b30 ffff8802765f206c
Call Trace:
 [<ffffffffa02ad926>] rpcauth_wrap_req+0x86/0xd0 [sunrpc]
 [<ffffffffa02a1d40>] ? call_connect+0xb0/0xb0 [sunrpc]
 [<ffffffffa02a1d40>] ? call_connect+0xb0/0xb0 [sunrpc]
 [<ffffffffa02a1ecb>] call_transmit+0x18b/0x290 [sunrpc]
 [<ffffffffa02a1d40>] ? call_connect+0xb0/0xb0 [sunrpc]
 [<ffffffffa02aae14>] __rpc_execute+0x84/0x400 [sunrpc]
 [<ffffffffa02ac40e>] rpc_execute+0x5e/0xa0 [sunrpc]
 [<ffffffffa02a2ea0>] rpc_run_task+0x70/0x90 [sunrpc]
 [<ffffffffa02a2f03>] rpc_call_sync+0x43/0xa0 [sunrpc]
 [<ffffffffa055284d>] _nfs4_do_set_security_label+0x11d/0x170 [nfsv4]
 [<ffffffffa0558861>] nfs4_set_security_label.isra.69+0xf1/0x1d0 [nfsv4]
 [<ffffffff815fca8b>] ? avc_alloc_node+0x24/0x125
 [<ffffffff815fcd2f>] ? avc_compute_av+0x1a3/0x1b5
 [<ffffffffa055897b>] nfs4_xattr_set_nfs4_label+0x3b/0x50 [nfsv4]
 [<ffffffff811bc772>] generic_setxattr+0x62/0x80
 [<ffffffff811bcfc3>] __vfs_setxattr_noperm+0x63/0x1b0
 [<ffffffff811bd1c5>] vfs_setxattr+0xb5/0xc0
 [<ffffffff811bd2fe>] setxattr+0x12e/0x1c0
 [<ffffffff811a4d22>] ? final_putname+0x22/0x50
 [<ffffffff811a4f2b>] ? putname+0x2b/0x40
 [<ffffffff811aa1cf>] ? user_path_at_empty+0x5f/0x90
 [<ffffffff8119bc29>] ? __sb_start_write+0x49/0x100
 [<ffffffff811bd66f>] SyS_lsetxattr+0x8f/0xd0
 [<ffffffff8160cf99>] system_call_fastpath+0x16/0x1b
Code: 48 8b 02 48 c7 45 c0 00 00 00 00 48 c7 45 c8 00 00 00 00 48 c7 45 d0 00 00 00 00 48 c7 45 d8 00 00 00 00 48 c7 45 e0 00 00 00 00 <48> 8b 00 48 8b 00 48 85 c0 0f 84 ae 00 00 00 48 8b 80 b8 03 00
RIP  [<ffffffffa0568703>] nfs4_xdr_enc_setattr+0x43/0x110 [nfsv4]
 RSP <ffff8801595d3888>
CR2: 0000000000000000

The problem is that _nfs4_do_set_security_label calls rpc_call_sync()
directly which fails to do any setup of the SEQUENCE call. Have it use
nfs4_call_sync() instead which does the right thing. While we're at it
change the name of "args" to "arg" to better match the pattern in
_nfs4_do_setattr.

Reported-by: Chao Ye <cye@redhat.com>
Cc: David Quigley <dpquigl@davequigley.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Cc: stable@vger.kernel.org # 3.11+
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4proc.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index b02c4cc7b0a9..d436c576e988 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4657,7 +4657,7 @@ static int _nfs4_do_set_security_label(struct inode *inode,
 	struct iattr sattr = {0};
 	struct nfs_server *server = NFS_SERVER(inode);
 	const u32 bitmask[3] = { 0, 0, FATTR4_WORD2_SECURITY_LABEL };
-	struct nfs_setattrargs args = {
+	struct nfs_setattrargs arg = {
 		.fh             = NFS_FH(inode),
 		.iap            = &sattr,
 		.server		= server,
@@ -4671,14 +4671,14 @@ static int _nfs4_do_set_security_label(struct inode *inode,
 	};
 	struct rpc_message msg = {
 		.rpc_proc       = &nfs4_procedures[NFSPROC4_CLNT_SETATTR],
-		.rpc_argp       = &args,
+		.rpc_argp       = &arg,
 		.rpc_resp       = &res,
 	};
 	int status;
 
-	nfs4_stateid_copy(&args.stateid, &zero_stateid);
+	nfs4_stateid_copy(&arg.stateid, &zero_stateid);
 
-	status = rpc_call_sync(server->client, &msg, 0);
+	status = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1);
 	if (status)
 		dprintk("%s failed: %d\n", __func__, status);
 
-- 
cgit 


From fcb63a9bd8427fc584229048ea14f1453dc9a2e1 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Fri, 1 Nov 2013 12:42:25 -0400
Subject: NFS: Fix a missing initialisation when reading the SELinux label

Ensure that _nfs4_do_get_security_label() also initialises the
SEQUENCE call correctly, by having it call into nfs4_call_sync().

Reported-by: Jeff Layton <jlayton@redhat.com>
Cc: stable@vger.kernel.org # 3.11+
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4proc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index d436c576e988..7e28b5c77cbc 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4602,7 +4602,7 @@ static int _nfs4_get_security_label(struct inode *inode, void *buf,
 	struct nfs4_label label = {0, 0, buflen, buf};
 
 	u32 bitmask[3] = { 0, 0, FATTR4_WORD2_SECURITY_LABEL };
-	struct nfs4_getattr_arg args = {
+	struct nfs4_getattr_arg arg = {
 		.fh		= NFS_FH(inode),
 		.bitmask	= bitmask,
 	};
@@ -4613,14 +4613,14 @@ static int _nfs4_get_security_label(struct inode *inode, void *buf,
 	};
 	struct rpc_message msg = {
 		.rpc_proc	= &nfs4_procedures[NFSPROC4_CLNT_GETATTR],
-		.rpc_argp	= &args,
+		.rpc_argp	= &arg,
 		.rpc_resp	= &res,
 	};
 	int ret;
 
 	nfs_fattr_init(&fattr);
 
-	ret = rpc_call_sync(server->client, &msg, 0);
+	ret = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 0);
 	if (ret)
 		return ret;
 	if (!(fattr.valid & NFS_ATTR_FATTR_V4_SECURITY_LABEL))
-- 
cgit 


From 3378b7f40d79930f0f447a164c7e8fcbe4480e40 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Fri, 1 Nov 2013 10:42:15 -0400
Subject: nfsd4: fix discarded security labels on setattr

Security labels in setattr calls are currently ignored because we forget
to set label->len.

Cc: stable@vger.kernel.org
Reported-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/nfs4xdr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 83db5a742aa9..d9d7fa94967f 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -411,6 +411,7 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
 		label->data = kzalloc(dummy32 + 1, GFP_KERNEL);
 		if (!label->data)
 			return nfserr_jukebox;
+		label->len = dummy32;
 		defer_free(argp, kfree, label->data);
 		memcpy(label->data, buf, dummy32);
 	}
-- 
cgit 


From 43bc3bf64b30cdfdffdc41e33bf21222e9396c42 Mon Sep 17 00:00:00 2001
From: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Date: Fri, 1 Nov 2013 15:56:52 +0000
Subject: ASoC: wm_adsp: Print error when regmap reads/writes fail

Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm_adsp.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index b38f3506418f..076da025ba84 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -396,8 +396,8 @@ static int wm_coeff_write_control(struct snd_kcontrol *kcontrol,
 	ret = regmap_raw_write(adsp->regmap, reg, scratch,
 			       ctl->len);
 	if (ret) {
-		adsp_err(adsp, "Failed to write %zu bytes to %x\n",
-			 ctl->len, reg);
+		adsp_err(adsp, "Failed to write %zu bytes to %x: %d\n",
+			 ctl->len, reg, ret);
 		kfree(scratch);
 		return ret;
 	}
@@ -450,8 +450,8 @@ static int wm_coeff_read_control(struct snd_kcontrol *kcontrol,
 
 	ret = regmap_raw_read(adsp->regmap, reg, scratch, ctl->len);
 	if (ret) {
-		adsp_err(adsp, "Failed to read %zu bytes from %x\n",
-			 ctl->len, reg);
+		adsp_err(adsp, "Failed to read %zu bytes from %x: %d\n",
+			 ctl->len, reg, ret);
 		kfree(scratch);
 		return ret;
 	}
@@ -1313,8 +1313,8 @@ static int wm_adsp_load_coeff(struct wm_adsp *dsp)
 						     le32_to_cpu(blk->len));
 			if (ret != 0) {
 				adsp_err(dsp,
-					"%s.%d: Failed to write to %x in %s\n",
-					file, blocks, reg, region_name);
+					"%s.%d: Failed to write to %x in %s: %d\n",
+					file, blocks, reg, region_name, ret);
 			}
 		}
 
-- 
cgit 


From 7328823d0052bbdb15af162f9f510ced811bdfe8 Mon Sep 17 00:00:00 2001
From: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Date: Fri, 1 Nov 2013 15:56:53 +0000
Subject: ASoC: wm_adsp: Release firmware on memory allocation failure

Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm_adsp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index 076da025ba84..4008ceb77c5b 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -689,7 +689,8 @@ static int wm_adsp_load(struct wm_adsp *dsp)
 						&buf_list);
 			if (!buf) {
 				adsp_err(dsp, "Out of memory\n");
-				return -ENOMEM;
+				ret = -ENOMEM;
+				goto out_fw;
 			}
 
 			ret = regmap_raw_write_async(regmap, reg, buf->buf,
-- 
cgit 


From 562c5e6f52bc9ed48b8dc9cef97923b64bd843ec Mon Sep 17 00:00:00 2001
From: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Date: Fri, 1 Nov 2013 15:56:55 +0000
Subject: ASoC: wm_adsp: Add debug info on get()/put() transfers

Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm_adsp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index 4008ceb77c5b..1f1fc0dd716e 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -401,6 +401,7 @@ static int wm_coeff_write_control(struct snd_kcontrol *kcontrol,
 		kfree(scratch);
 		return ret;
 	}
+	adsp_dbg(adsp, "Wrote %zu bytes to %x\n", ctl->len, reg);
 
 	kfree(scratch);
 
@@ -455,6 +456,7 @@ static int wm_coeff_read_control(struct snd_kcontrol *kcontrol,
 		kfree(scratch);
 		return ret;
 	}
+	adsp_dbg(adsp, "Read %zu bytes from %x\n", ctl->len, reg);
 
 	memcpy(buf, scratch, ctl->len);
 	kfree(scratch);
-- 
cgit 


From b0101b4f14d591719f53f7f38ede3651113e6a53 Mon Sep 17 00:00:00 2001
From: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Date: Fri, 1 Nov 2013 15:56:56 +0000
Subject: ASoC: wm_adsp: Remove and free algorithm regions for ADSP1

Do it in a similar fashion as we do for ADSP2.

Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm_adsp.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index 1f1fc0dd716e..cc3575b5783f 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -1361,6 +1361,7 @@ int wm_adsp1_event(struct snd_soc_dapm_widget *w,
 	struct snd_soc_codec *codec = w->codec;
 	struct wm_adsp *dsps = snd_soc_codec_get_drvdata(codec);
 	struct wm_adsp *dsp = &dsps[w->shift];
+	struct wm_adsp_alg_region *alg_region;
 	struct wm_coeff_ctl *ctl;
 	int ret;
 	int val;
@@ -1438,6 +1439,14 @@ int wm_adsp1_event(struct snd_soc_dapm_widget *w,
 
 		list_for_each_entry(ctl, &dsp->ctl_list, list)
 			ctl->enabled = 0;
+
+		while (!list_empty(&dsp->alg_regions)) {
+			alg_region = list_first_entry(&dsp->alg_regions,
+						      struct wm_adsp_alg_region,
+						      list);
+			list_del(&alg_region->list);
+			kfree(alg_region);
+		}
 		break;
 
 	default:
-- 
cgit 


From 3626992a21610fa19534d392bb0e79cc55a99c9a Mon Sep 17 00:00:00 2001
From: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Date: Fri, 1 Nov 2013 15:56:57 +0000
Subject: ASoC: wm_adsp: Print out the firmware version

Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm_adsp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index cc3575b5783f..53b6033658a6 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -570,6 +570,7 @@ static int wm_adsp_load(struct wm_adsp *dsp)
 			 file, header->ver);
 		goto out_fw;
 	}
+	adsp_info(dsp, "Firmware version: %d\n", header->ver);
 
 	if (header->core != dsp->type) {
 		adsp_err(dsp, "%s: invalid core %d != %d\n",
-- 
cgit 


From dea0c74ff9e0d85d07b694e261aa7bda2c314ce8 Mon Sep 17 00:00:00 2001
From: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Date: Fri, 1 Nov 2013 10:02:10 +0000
Subject: ASoC: wm8962: Add ALC coefficient support

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm8962.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 7dd79c4efc13..028686fd3eb9 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -1775,6 +1775,11 @@ WM8962_DSP2_ENABLE("HPF2 Switch", WM8962_HPF2_ENA_SHIFT),
 SND_SOC_BYTES("HPF Coefficients", WM8962_LHPF2, 1),
 WM8962_DSP2_ENABLE("HD Bass Switch", WM8962_HDBASS_ENA_SHIFT),
 SND_SOC_BYTES("HD Bass Coefficients", WM8962_HDBASS_AI_1, 30),
+
+SOC_DOUBLE("ALC Switch", WM8962_ALC1, WM8962_ALCL_ENA_SHIFT,
+		WM8962_ALCR_ENA_SHIFT, 1, 0),
+SND_SOC_BYTES_MASK("ALC Coefficients", WM8962_ALC1, 4,
+		WM8962_ALCL_ENA_MASK | WM8962_ALCR_ENA_MASK),
 };
 
 static const struct snd_kcontrol_new wm8962_spk_mono_controls[] = {
-- 
cgit 


From ae2ff9f6c529ba28adea906037a93fd14e46e052 Mon Sep 17 00:00:00 2001
From: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Date: Fri, 1 Nov 2013 10:02:58 +0000
Subject: ASoC: wm8962: Add EQ coefficient support

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm8962.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 028686fd3eb9..3a2f96c5442c 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -1758,6 +1758,9 @@ SOC_DOUBLE_R_TLV("EQ4 Volume", WM8962_EQ3, WM8962_EQ23,
 		 WM8962_EQL_B4_GAIN_SHIFT, 31, 0, eq_tlv),
 SOC_DOUBLE_R_TLV("EQ5 Volume", WM8962_EQ3, WM8962_EQ23,
 		 WM8962_EQL_B5_GAIN_SHIFT, 31, 0, eq_tlv),
+SND_SOC_BYTES("EQL Coefficients", WM8962_EQ4, 18),
+SND_SOC_BYTES("EQR Coefficients", WM8962_EQ24, 18),
+
 
 SOC_SINGLE("3D Switch", WM8962_THREED1, 0, 1, 0),
 SND_SOC_BYTES_MASK("3D Coefficients", WM8962_THREED1, 4, WM8962_THREED_ENA),
-- 
cgit 


From 044e3bc33391b1f2769d5ab2c04f246c3d8e04c3 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Fri, 1 Nov 2013 13:16:53 -0400
Subject: sysfs: use generic_file_llseek() for sysfs_file_operations

13c589d5b0ac6 ("sysfs: use seq_file when reading regular files")
converted regular sysfs files to use seq_file.  The commit substituted
generic_file_llseek() with seq_lseek() for llseek implementation.

Before the change, all regular sysfs files were allowed to seek to any
position in [0, PAGE_SIZE] as the file size is always PAGE_SIZE and
generic_file_llseek() allows any seeking inside the range under file
size; however, seq_lseek()'s behavior is different.  It traverses the
output by repeatedly invoking ->show() until it reaches the target
offset or traversal indicates EOF.  As seq_files are fully dynamic and
may not end at all, it doesn't support seeking from the end
(SEEK_END).

Apparently, there are userland tools which uses SEEK_END to discover
the buffer size to use and the switch to seq_lseek() disturbs them as
SEEK_END fails with -EINVAL.

The only benefits of using seq_lseek() instead of
generic_file_llseek() are

* Early failure.  If traversing to certain file position should fail,
  seq_lseek() will report such failures on lseek(2) instead of the
  following read/write operations.

* EOF detection.  While SEEK_END is not supported, SEEK_SET/CUR +
  large offset can be used to detect eof - eof at the time of the seek
  anyway as the file size may change dynamically.

Both aren't necessary for sysfs or prospect kernfs users.  Revert to
genefic_file_llseek() and preserve the original behavior.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Link: https://lkml.kernel.org/r/20131031114358.GA5551@osiris
Tested-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 382db3c045f3..79b5da2acbe1 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -800,7 +800,7 @@ EXPORT_SYMBOL_GPL(sysfs_notify);
 const struct file_operations sysfs_file_operations = {
 	.read		= seq_read,
 	.write		= sysfs_write_file,
-	.llseek		= seq_lseek,
+	.llseek		= generic_file_llseek,
 	.open		= sysfs_open_file,
 	.release	= sysfs_release,
 	.poll		= sysfs_poll,
-- 
cgit 


From 0cae60f91494e34a0c5391f1455f825d5849b05f Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 30 Oct 2013 10:28:36 -0400
Subject: sysfs: rename sysfs_assoc_lock and explain what it's about

sysfs_assoc_lock is an odd piece of locking.  In general, whoever owns
a kobject is responsible for synchronizing sysfs operations and sysfs
proper assumes that, for example, removal won't race with any other
operation; however, this doesn't work for symlinking because an entity
performing symlink doesn't usually own the target kobject and thus has
no control over its removal.

sysfs_assoc_lock synchronizes symlink operations against kobj->sd
disassociation so that symlink code doesn't end up dereferencing
already freed sysfs_dirent by racing with removal of the target
kobject.

This is quite obscure and the generic name of the lock and lack of
comments make it difficult to understand its role.  Let's rename it to
sysfs_symlink_target_lock and add comments explaining what's going on.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/dir.c     | 18 +++++++++++++++---
 fs/sysfs/symlink.c | 20 ++++++++++++++------
 fs/sysfs/sysfs.h   |  2 +-
 3 files changed, 30 insertions(+), 10 deletions(-)

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index de47ed32d5c7..08c66969d52a 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -26,7 +26,7 @@
 #include "sysfs.h"
 
 DEFINE_MUTEX(sysfs_mutex);
-DEFINE_SPINLOCK(sysfs_assoc_lock);
+DEFINE_SPINLOCK(sysfs_symlink_target_lock);
 
 #define to_sysfs_dirent(X) rb_entry((X), struct sysfs_dirent, s_rb)
 
@@ -902,9 +902,21 @@ void sysfs_remove_dir(struct kobject *kobj)
 {
 	struct sysfs_dirent *sd = kobj->sd;
 
-	spin_lock(&sysfs_assoc_lock);
+	/*
+	 * In general, kboject owner is responsible for ensuring removal
+	 * doesn't race with other operations and sysfs doesn't provide any
+	 * protection; however, when @kobj is used as a symlink target, the
+	 * symlinking entity usually doesn't own @kobj and thus has no
+	 * control over removal.  @kobj->sd may be removed anytime and
+	 * symlink code may end up dereferencing an already freed sd.
+	 *
+	 * sysfs_symlink_target_lock synchronizes @kobj->sd disassociation
+	 * against symlink operations so that symlink code can safely
+	 * dereference @kobj->sd.
+	 */
+	spin_lock(&sysfs_symlink_target_lock);
 	kobj->sd = NULL;
-	spin_unlock(&sysfs_assoc_lock);
+	spin_unlock(&sysfs_symlink_target_lock);
 
 	if (sd) {
 		WARN_ON_ONCE(sysfs_type(sd) != SYSFS_DIR);
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index 22ea2f5796f5..1a23681b8179 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -32,13 +32,15 @@ static int sysfs_do_create_link_sd(struct sysfs_dirent *parent_sd,
 
 	BUG_ON(!name || !parent_sd);
 
-	/* target->sd can go away beneath us but is protected with
-	 * sysfs_assoc_lock.  Fetch target_sd from it.
+	/*
+	 * We don't own @target and it may be removed at any time.
+	 * Synchronize using sysfs_symlink_target_lock.  See
+	 * sysfs_remove_dir() for details.
 	 */
-	spin_lock(&sysfs_assoc_lock);
+	spin_lock(&sysfs_symlink_target_lock);
 	if (target->sd)
 		target_sd = sysfs_get(target->sd);
-	spin_unlock(&sysfs_assoc_lock);
+	spin_unlock(&sysfs_symlink_target_lock);
 
 	error = -ENOENT;
 	if (!target_sd)
@@ -140,10 +142,16 @@ void sysfs_delete_link(struct kobject *kobj, struct kobject *targ,
 			const char *name)
 {
 	const void *ns = NULL;
-	spin_lock(&sysfs_assoc_lock);
+
+	/*
+	 * We don't own @target and it may be removed at any time.
+	 * Synchronize using sysfs_symlink_target_lock.  See
+	 * sysfs_remove_dir() for details.
+	 */
+	spin_lock(&sysfs_symlink_target_lock);
 	if (targ->sd)
 		ns = targ->sd->s_ns;
-	spin_unlock(&sysfs_assoc_lock);
+	spin_unlock(&sysfs_symlink_target_lock);
 	sysfs_hash_and_remove(kobj->sd, name, ns);
 }
 
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index 05d063fe69c7..e3aea92ebfa3 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -159,7 +159,7 @@ extern struct kmem_cache *sysfs_dir_cachep;
  * dir.c
  */
 extern struct mutex sysfs_mutex;
-extern spinlock_t sysfs_assoc_lock;
+extern spinlock_t sysfs_symlink_target_lock;
 extern const struct dentry_operations sysfs_dentry_ops;
 
 extern const struct file_operations sysfs_dir_operations;
-- 
cgit 


From 3cdb35b074142c915a463c535839886ae08fdfd4 Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Fri, 25 Oct 2013 15:12:33 -0700
Subject: openvswitch: Enable all GSO features on internal port.

OVS already can handle all types of segmentation offloads that
are supported by the kernel.
Following patch specifically enables UDP and IPV6 segmentation
offloads.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
---
 net/openvswitch/vport-internal_dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/openvswitch/vport-internal_dev.c b/net/openvswitch/vport-internal_dev.c
index 98d3edbbc235..729c68763fe7 100644
--- a/net/openvswitch/vport-internal_dev.c
+++ b/net/openvswitch/vport-internal_dev.c
@@ -134,7 +134,7 @@ static void do_setup(struct net_device *netdev)
 	netdev->tx_queue_len = 0;
 
 	netdev->features = NETIF_F_LLTX | NETIF_F_SG | NETIF_F_FRAGLIST |
-			   NETIF_F_HIGHDMA | NETIF_F_HW_CSUM | NETIF_F_TSO;
+			   NETIF_F_HIGHDMA | NETIF_F_HW_CSUM | NETIF_F_GSO_SOFTWARE;
 
 	netdev->vlan_features = netdev->features;
 	netdev->features |= NETIF_F_HW_VLAN_CTAG_TX;
-- 
cgit 


From df23e9f642830f10c505c8a3d57772ad1238c701 Mon Sep 17 00:00:00 2001
From: Jarno Rajahalme <jrajahalme@nicira.com>
Date: Wed, 23 Oct 2013 01:40:44 -0700
Subject: openvswitch: Widen TCP flags handling.

Widen TCP flags handling from 7 bits (uint8_t) to 12 bits (uint16_t).
The kernel interface remains at 8 bits, which makes no functional
difference now, as none of the higher bits is currently of interest
to the userspace.

Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
---
 net/openvswitch/datapath.c | 2 +-
 net/openvswitch/flow.c     | 8 +++-----
 net/openvswitch/flow.h     | 2 +-
 3 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 5bc5a4e64758..1408adc2a2a7 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -671,7 +671,7 @@ static int ovs_flow_cmd_fill_info(struct sw_flow *flow, struct datapath *dp,
 	used = flow->used;
 	stats.n_packets = flow->packet_count;
 	stats.n_bytes = flow->byte_count;
-	tcp_flags = flow->tcp_flags;
+	tcp_flags = (u8)ntohs(flow->tcp_flags);
 	spin_unlock_bh(&flow->lock);
 
 	if (used &&
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index 617810f1a21e..b73c7680a3d2 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -58,19 +58,17 @@ u64 ovs_flow_used_time(unsigned long flow_jiffies)
 	return cur_ms - idle_ms;
 }
 
-#define TCP_FLAGS_OFFSET 13
-#define TCP_FLAG_MASK 0x3f
+#define TCP_FLAGS_BE16(tp) (*(__be16 *)&tcp_flag_word(tp) & htons(0x0FFF))
 
 void ovs_flow_used(struct sw_flow *flow, struct sk_buff *skb)
 {
-	u8 tcp_flags = 0;
+	__be16 tcp_flags = 0;
 
 	if ((flow->key.eth.type == htons(ETH_P_IP) ||
 	     flow->key.eth.type == htons(ETH_P_IPV6)) &&
 	    flow->key.ip.proto == IPPROTO_TCP &&
 	    likely(skb->len >= skb_transport_offset(skb) + sizeof(struct tcphdr))) {
-		u8 *tcp = (u8 *)tcp_hdr(skb);
-		tcp_flags = *(tcp + TCP_FLAGS_OFFSET) & TCP_FLAG_MASK;
+		tcp_flags = TCP_FLAGS_BE16(tcp_hdr(skb));
 	}
 
 	spin_lock(&flow->lock);
diff --git a/net/openvswitch/flow.h b/net/openvswitch/flow.h
index 098fd1db6a23..204e0ccd116d 100644
--- a/net/openvswitch/flow.h
+++ b/net/openvswitch/flow.h
@@ -158,7 +158,7 @@ struct sw_flow {
 	unsigned long used;	/* Last used time (in jiffies). */
 	u64 packet_count;	/* Number of packets matched. */
 	u64 byte_count;		/* Number of bytes matched. */
-	u8 tcp_flags;		/* Union of seen TCP flags. */
+	__be16 tcp_flags;	/* Union of seen TCP flags. */
 };
 
 struct arp_eth_header {
-- 
cgit 


From 5eb26b156e29eadcc21f73fb5d14497f0db24b86 Mon Sep 17 00:00:00 2001
From: Jarno Rajahalme <jrajahalme@nicira.com>
Date: Wed, 23 Oct 2013 01:44:59 -0700
Subject: openvswitch: TCP flags matching support.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

    tcp_flags=flags/mask
        Bitwise  match on TCP flags.  The flags and mask are 16-bit num‐
        bers written in decimal or in hexadecimal prefixed by 0x.   Each
        1-bit  in  mask requires that the corresponding bit in port must
        match.  Each 0-bit in mask causes the corresponding  bit  to  be
        ignored.

        TCP  protocol  currently  defines  9 flag bits, and additional 3
        bits are reserved (must be transmitted as zero), see  RFCs  793,
        3168, and 3540.  The flag bits are, numbering from the least
        significant bit:

        0: FIN No more data from sender.

        1: SYN Synchronize sequence numbers.

        2: RST Reset the connection.

        3: PSH Push function.

        4: ACK Acknowledgement field significant.

        5: URG Urgent pointer field significant.

        6: ECE ECN Echo.

        7: CWR Congestion Windows Reduced.

        8: NS  Nonce Sum.

        9-11:  Reserved.

        12-15: Not matchable, must be zero.

Signed-off-by: Jarno Rajahalme <jrajahalme@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
---
 include/uapi/linux/openvswitch.h |  1 +
 net/openvswitch/flow.c           |  2 ++
 net/openvswitch/flow.h           |  2 ++
 net/openvswitch/flow_netlink.c   | 31 +++++++++++++++++++++++++++++--
 4 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/include/uapi/linux/openvswitch.h b/include/uapi/linux/openvswitch.h
index 2cc4644f68ef..d120f9fe0017 100644
--- a/include/uapi/linux/openvswitch.h
+++ b/include/uapi/linux/openvswitch.h
@@ -271,6 +271,7 @@ enum ovs_key_attr {
 	OVS_KEY_ATTR_SKB_MARK,  /* u32 skb mark */
 	OVS_KEY_ATTR_TUNNEL,    /* Nested set of ovs_tunnel attributes */
 	OVS_KEY_ATTR_SCTP,      /* struct ovs_key_sctp */
+	OVS_KEY_ATTR_TCP_FLAGS,	/* be16 TCP flags. */
 
 #ifdef __KERNEL__
 	OVS_KEY_ATTR_IPV4_TUNNEL,  /* struct ovs_key_ipv4_tunnel */
diff --git a/net/openvswitch/flow.c b/net/openvswitch/flow.c
index b73c7680a3d2..b409f5279601 100644
--- a/net/openvswitch/flow.c
+++ b/net/openvswitch/flow.c
@@ -428,6 +428,7 @@ int ovs_flow_extract(struct sk_buff *skb, u16 in_port, struct sw_flow_key *key)
 				struct tcphdr *tcp = tcp_hdr(skb);
 				key->ipv4.tp.src = tcp->source;
 				key->ipv4.tp.dst = tcp->dest;
+				key->ipv4.tp.flags = TCP_FLAGS_BE16(tcp);
 			}
 		} else if (key->ip.proto == IPPROTO_UDP) {
 			if (udphdr_ok(skb)) {
@@ -496,6 +497,7 @@ int ovs_flow_extract(struct sk_buff *skb, u16 in_port, struct sw_flow_key *key)
 				struct tcphdr *tcp = tcp_hdr(skb);
 				key->ipv6.tp.src = tcp->source;
 				key->ipv6.tp.dst = tcp->dest;
+				key->ipv6.tp.flags = TCP_FLAGS_BE16(tcp);
 			}
 		} else if (key->ip.proto == NEXTHDR_UDP) {
 			if (udphdr_ok(skb)) {
diff --git a/net/openvswitch/flow.h b/net/openvswitch/flow.h
index 204e0ccd116d..1510f51dbf74 100644
--- a/net/openvswitch/flow.h
+++ b/net/openvswitch/flow.h
@@ -93,6 +93,7 @@ struct sw_flow_key {
 				struct {
 					__be16 src;		/* TCP/UDP/SCTP source port. */
 					__be16 dst;		/* TCP/UDP/SCTP destination port. */
+					__be16 flags;		/* TCP flags. */
 				} tp;
 				struct {
 					u8 sha[ETH_ALEN];	/* ARP source hardware address. */
@@ -109,6 +110,7 @@ struct sw_flow_key {
 			struct {
 				__be16 src;		/* TCP/UDP/SCTP source port. */
 				__be16 dst;		/* TCP/UDP/SCTP destination port. */
+				__be16 flags;		/* TCP flags. */
 			} tp;
 			struct {
 				struct in6_addr target;	/* ND target address. */
diff --git a/net/openvswitch/flow_netlink.c b/net/openvswitch/flow_netlink.c
index e04649c56a96..2bc1bc1aca3b 100644
--- a/net/openvswitch/flow_netlink.c
+++ b/net/openvswitch/flow_netlink.c
@@ -114,6 +114,7 @@ static bool match_validate(const struct sw_flow_match *match,
 	mask_allowed &= ~((1 << OVS_KEY_ATTR_IPV4)
 			| (1 << OVS_KEY_ATTR_IPV6)
 			| (1 << OVS_KEY_ATTR_TCP)
+			| (1 << OVS_KEY_ATTR_TCP_FLAGS)
 			| (1 << OVS_KEY_ATTR_UDP)
 			| (1 << OVS_KEY_ATTR_SCTP)
 			| (1 << OVS_KEY_ATTR_ICMP)
@@ -154,8 +155,11 @@ static bool match_validate(const struct sw_flow_match *match,
 
 			if (match->key->ip.proto == IPPROTO_TCP) {
 				key_expected |= 1 << OVS_KEY_ATTR_TCP;
-				if (match->mask && (match->mask->key.ip.proto == 0xff))
+				key_expected |= 1 << OVS_KEY_ATTR_TCP_FLAGS;
+				if (match->mask && (match->mask->key.ip.proto == 0xff)) {
 					mask_allowed |= 1 << OVS_KEY_ATTR_TCP;
+					mask_allowed |= 1 << OVS_KEY_ATTR_TCP_FLAGS;
+				}
 			}
 
 			if (match->key->ip.proto == IPPROTO_ICMP) {
@@ -186,8 +190,11 @@ static bool match_validate(const struct sw_flow_match *match,
 
 			if (match->key->ip.proto == IPPROTO_TCP) {
 				key_expected |= 1 << OVS_KEY_ATTR_TCP;
-				if (match->mask && (match->mask->key.ip.proto == 0xff))
+				key_expected |= 1 << OVS_KEY_ATTR_TCP_FLAGS;
+				if (match->mask && (match->mask->key.ip.proto == 0xff)) {
 					mask_allowed |= 1 << OVS_KEY_ATTR_TCP;
+					mask_allowed |= 1 << OVS_KEY_ATTR_TCP_FLAGS;
+				}
 			}
 
 			if (match->key->ip.proto == IPPROTO_ICMPV6) {
@@ -235,6 +242,7 @@ static const int ovs_key_lens[OVS_KEY_ATTR_MAX + 1] = {
 	[OVS_KEY_ATTR_IPV4] = sizeof(struct ovs_key_ipv4),
 	[OVS_KEY_ATTR_IPV6] = sizeof(struct ovs_key_ipv6),
 	[OVS_KEY_ATTR_TCP] = sizeof(struct ovs_key_tcp),
+	[OVS_KEY_ATTR_TCP_FLAGS] = sizeof(__be16),
 	[OVS_KEY_ATTR_UDP] = sizeof(struct ovs_key_udp),
 	[OVS_KEY_ATTR_SCTP] = sizeof(struct ovs_key_sctp),
 	[OVS_KEY_ATTR_ICMP] = sizeof(struct ovs_key_icmp),
@@ -634,6 +642,19 @@ static int ovs_key_from_nlattrs(struct sw_flow_match *match,  u64 attrs,
 		attrs &= ~(1 << OVS_KEY_ATTR_TCP);
 	}
 
+	if (attrs & (1 << OVS_KEY_ATTR_TCP_FLAGS)) {
+		if (orig_attrs & (1 << OVS_KEY_ATTR_IPV4)) {
+			SW_FLOW_KEY_PUT(match, ipv4.tp.flags,
+					nla_get_be16(a[OVS_KEY_ATTR_TCP_FLAGS]),
+					is_mask);
+		} else {
+			SW_FLOW_KEY_PUT(match, ipv6.tp.flags,
+					nla_get_be16(a[OVS_KEY_ATTR_TCP_FLAGS]),
+					is_mask);
+		}
+		attrs &= ~(1 << OVS_KEY_ATTR_TCP_FLAGS);
+	}
+
 	if (attrs & (1 << OVS_KEY_ATTR_UDP)) {
 		const struct ovs_key_udp *udp_key;
 
@@ -1004,9 +1025,15 @@ int ovs_nla_put_flow(const struct sw_flow_key *swkey,
 			if (swkey->eth.type == htons(ETH_P_IP)) {
 				tcp_key->tcp_src = output->ipv4.tp.src;
 				tcp_key->tcp_dst = output->ipv4.tp.dst;
+				if (nla_put_be16(skb, OVS_KEY_ATTR_TCP_FLAGS,
+						 output->ipv4.tp.flags))
+					goto nla_put_failure;
 			} else if (swkey->eth.type == htons(ETH_P_IPV6)) {
 				tcp_key->tcp_src = output->ipv6.tp.src;
 				tcp_key->tcp_dst = output->ipv6.tp.dst;
+				if (nla_put_be16(skb, OVS_KEY_ATTR_TCP_FLAGS,
+						 output->ipv6.tp.flags))
+					goto nla_put_failure;
 			}
 		} else if (swkey->ip.proto == IPPROTO_UDP) {
 			struct ovs_key_udp *udp_key;
-- 
cgit 


From 8ddd094675cfd453fc9838caa46ea108a4107183 Mon Sep 17 00:00:00 2001
From: Pravin B Shelar <pshelar@nicira.com>
Date: Tue, 29 Oct 2013 23:10:58 -0700
Subject: openvswitch: Use flow hash during flow lookup operation.

Flow->hash can be used to detect hash collisions and avoid flow key
compare in flow lookup.

Signed-off-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Jesse Gross <jesse@nicira.com>
---
 net/openvswitch/flow_table.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/openvswitch/flow_table.c b/net/openvswitch/flow_table.c
index 536b4d2a42e2..e42542706087 100644
--- a/net/openvswitch/flow_table.c
+++ b/net/openvswitch/flow_table.c
@@ -421,7 +421,7 @@ static struct sw_flow *masked_flow_lookup(struct table_instance *ti,
 	hash = flow_hash(&masked_key, key_start, key_end);
 	head = find_bucket(ti, hash);
 	hlist_for_each_entry_rcu(flow, head, hash_node[ti->node_ver]) {
-		if (flow->mask == mask &&
+		if (flow->mask == mask && flow->hash == hash &&
 		    flow_cmp_masked_key(flow, &masked_key,
 					  key_start, key_end))
 			return flow;
-- 
cgit 


From 3ee307dee23ec8aa103f76fc80aba6b6904f3add Mon Sep 17 00:00:00 2001
From: Ben Boeckel <mathstuf@gmail.com>
Date: Fri, 1 Nov 2013 08:53:30 -0400
Subject: epic100: replace printk with netdev_ calls

Also snipes some whitespace errors.

Signed-off-by: Ben Boeckel <mathstuf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/smsc/epic100.c | 125 +++++++++++++++++-------------------
 1 file changed, 58 insertions(+), 67 deletions(-)

diff --git a/drivers/net/ethernet/smsc/epic100.c b/drivers/net/ethernet/smsc/epic100.c
index 8c5c24a16f8a..8ae1f8a7bf38 100644
--- a/drivers/net/ethernet/smsc/epic100.c
+++ b/drivers/net/ethernet/smsc/epic100.c
@@ -91,9 +91,9 @@ static int rx_copybreak;
 
 /* These identify the driver base version and may not be removed. */
 static char version[] =
-DRV_NAME ".c:v1.11 1/7/2001 Written by Donald Becker <becker@scyld.com>\n";
+DRV_NAME ".c:v1.11 1/7/2001 Written by Donald Becker <becker@scyld.com>";
 static char version2[] =
-"  (unofficial 2.4.x kernel port, version " DRV_VERSION ", " DRV_RELDATE ")\n";
+"  (unofficial 2.4.x kernel port, version " DRV_VERSION ", " DRV_RELDATE ")";
 
 MODULE_AUTHOR("Donald Becker <becker@scyld.com>");
 MODULE_DESCRIPTION("SMC 83c170 EPIC series Ethernet driver");
@@ -332,9 +332,7 @@ static int epic_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 /* when built into the kernel, we only print version if device is found */
 #ifndef MODULE
-	static int printed_version;
-	if (!printed_version++)
-		printk(KERN_INFO "%s%s", version, version2);
+	pr_info_once("%s%s\n", version, version2);
 #endif
 
 	card_idx++;
@@ -423,9 +421,9 @@ static int epic_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		((__le16 *)dev->dev_addr)[i] = cpu_to_le16(er16(LAN0 + i*4));
 
 	if (debug > 2) {
-		dev_printk(KERN_DEBUG, &pdev->dev, "EEPROM contents:\n");
+		dev_dbg(&pdev->dev, "EEPROM contents:\n");
 		for (i = 0; i < 64; i++)
-			printk(" %4.4x%s", read_eeprom(ep, i),
+			pr_cont(" %4.4x%s", read_eeprom(ep, i),
 				   i % 16 == 15 ? "\n" : "");
 	}
 
@@ -490,10 +488,10 @@ static int epic_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (ret < 0)
 		goto err_out_unmap_rx;
 
-	printk(KERN_INFO "%s: %s at %lx, IRQ %d, %pM\n",
-	       dev->name, pci_id_tbl[chip_idx].name,
-	       (long)pci_resource_start(pdev, EPIC_BAR), pdev->irq,
-	       dev->dev_addr);
+	netdev_info(dev, "%s at %lx, IRQ %d, %pM\n",
+		    pci_id_tbl[chip_idx].name,
+		    (long)pci_resource_start(pdev, EPIC_BAR), pdev->irq,
+		    dev->dev_addr);
 
 out:
 	return ret;
@@ -703,9 +701,8 @@ static int epic_open(struct net_device *dev)
 			mdio_write(dev, ep->phys[0], MII_BMCR, media2miictl[dev->if_port&15]);
 		if (dev->if_port == 1) {
 			if (debug > 1)
-				printk(KERN_INFO "%s: Using the 10base2 transceiver, MII "
-					   "status %4.4x.\n",
-					   dev->name, mdio_read(dev, ep->phys[0], MII_BMSR));
+				netdev_info(dev, "Using the 10base2 transceiver, MII status %4.4x.\n",
+					    mdio_read(dev, ep->phys[0], MII_BMSR));
 		}
 	} else {
 		int mii_lpa = mdio_read(dev, ep->phys[0], MII_LPA);
@@ -715,10 +712,10 @@ static int epic_open(struct net_device *dev)
 			else if (! (mii_lpa & LPA_LPACK))
 				mdio_write(dev, ep->phys[0], MII_BMCR, BMCR_ANENABLE|BMCR_ANRESTART);
 			if (debug > 1)
-				printk(KERN_INFO "%s: Setting %s-duplex based on MII xcvr %d"
-					   " register read of %4.4x.\n", dev->name,
-					   ep->mii.full_duplex ? "full" : "half",
-					   ep->phys[0], mii_lpa);
+				netdev_info(dev, "Setting %s-duplex based on MII xcvr %d register read of %4.4x.\n",
+					    ep->mii.full_duplex ? "full"
+								: "half",
+					    ep->phys[0], mii_lpa);
 		}
 	}
 
@@ -738,10 +735,9 @@ static int epic_open(struct net_device *dev)
 	     TxUnderrun);
 
 	if (debug > 1) {
-		printk(KERN_DEBUG "%s: epic_open() ioaddr %p IRQ %d "
-		       "status %4.4x %s-duplex.\n",
-		       dev->name, ioaddr, irq, er32(GENCTL),
-		       ep->mii.full_duplex ? "full" : "half");
+		netdev_dbg(dev, "epic_open() ioaddr %p IRQ %d status %4.4x %s-duplex.\n",
+			   ioaddr, irq, er32(GENCTL),
+			   ep->mii.full_duplex ? "full" : "half");
 	}
 
 	/* Set the timer to switch to check for link beat and perhaps switch
@@ -790,8 +786,8 @@ static void epic_restart(struct net_device *dev)
 	/* Soft reset the chip. */
 	ew32(GENCTL, 0x4001);
 
-	printk(KERN_DEBUG "%s: Restarting the EPIC chip, Rx %d/%d Tx %d/%d.\n",
-		   dev->name, ep->cur_rx, ep->dirty_rx, ep->dirty_tx, ep->cur_tx);
+	netdev_dbg(dev, "Restarting the EPIC chip, Rx %d/%d Tx %d/%d.\n",
+		   ep->cur_rx, ep->dirty_rx, ep->dirty_tx, ep->cur_tx);
 	udelay(1);
 
 	/* This magic is documented in SMSC app note 7.15 */
@@ -827,9 +823,8 @@ static void epic_restart(struct net_device *dev)
 	     ((ep->chip_flags & TYPE2_INTR) ? PCIBusErr175 : PCIBusErr170) |
 	     TxUnderrun);
 
-	printk(KERN_DEBUG "%s: epic_restart() done, cmd status %4.4x, ctl %4.4x"
-		   " interrupt %4.4x.\n",
-		   dev->name, er32(COMMAND), er32(GENCTL), er32(INTSTAT));
+	netdev_dbg(dev, "epic_restart() done, cmd status %4.4x, ctl %4.4x interrupt %4.4x.\n",
+		   er32(COMMAND), er32(GENCTL), er32(INTSTAT));
 }
 
 static void check_media(struct net_device *dev)
@@ -846,9 +841,9 @@ static void check_media(struct net_device *dev)
 		return;
 	if (ep->mii.full_duplex != duplex) {
 		ep->mii.full_duplex = duplex;
-		printk(KERN_INFO "%s: Setting %s-duplex based on MII #%d link"
-			   " partner capability of %4.4x.\n", dev->name,
-			   ep->mii.full_duplex ? "full" : "half", ep->phys[0], mii_lpa);
+		netdev_info(dev, "Setting %s-duplex based on MII #%d link partner capability of %4.4x.\n",
+			    ep->mii.full_duplex ? "full" : "half",
+			    ep->phys[0], mii_lpa);
 		ew32(TxCtrl, ep->mii.full_duplex ? 0x7F : 0x79);
 	}
 }
@@ -861,11 +856,10 @@ static void epic_timer(unsigned long data)
 	int next_tick = 5*HZ;
 
 	if (debug > 3) {
-		printk(KERN_DEBUG "%s: Media monitor tick, Tx status %8.8x.\n",
-		       dev->name, er32(TxSTAT));
-		printk(KERN_DEBUG "%s: Other registers are IntMask %4.4x "
-		       "IntStatus %4.4x RxStatus %4.4x.\n", dev->name,
-		       er32(INTMASK), er32(INTSTAT), er32(RxSTAT));
+		netdev_dbg(dev, "Media monitor tick, Tx status %8.8x.\n",
+			   er32(TxSTAT));
+		netdev_dbg(dev, "Other registers are IntMask %4.4x IntStatus %4.4x RxStatus %4.4x.\n",
+			   er32(INTMASK), er32(INTSTAT), er32(RxSTAT));
 	}
 
 	check_media(dev);
@@ -880,11 +874,11 @@ static void epic_tx_timeout(struct net_device *dev)
 	void __iomem *ioaddr = ep->ioaddr;
 
 	if (debug > 0) {
-		printk(KERN_WARNING "%s: Transmit timeout using MII device, "
-		       "Tx status %4.4x.\n", dev->name, er16(TxSTAT));
+		netdev_warn(dev, "Transmit timeout using MII device, Tx status %4.4x.\n",
+			    er16(TxSTAT));
 		if (debug > 1) {
-			printk(KERN_DEBUG "%s: Tx indices: dirty_tx %d, cur_tx %d.\n",
-				   dev->name, ep->dirty_tx, ep->cur_tx);
+			netdev_dbg(dev, "Tx indices: dirty_tx %d, cur_tx %d.\n",
+				   ep->dirty_tx, ep->cur_tx);
 		}
 	}
 	if (er16(TxSTAT) & 0x10) {		/* Tx FIFO underflow. */
@@ -994,9 +988,8 @@ static netdev_tx_t epic_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	ew32(COMMAND, TxQueued);
 
 	if (debug > 4)
-		printk(KERN_DEBUG "%s: Queued Tx packet size %d to slot %d, "
-		       "flag %2.2x Tx status %8.8x.\n", dev->name, skb->len,
-		       entry, ctrl_word, er32(TxSTAT));
+		netdev_dbg(dev, "Queued Tx packet size %d to slot %d, flag %2.2x Tx status %8.8x.\n",
+			   skb->len, entry, ctrl_word, er32(TxSTAT));
 
 	return NETDEV_TX_OK;
 }
@@ -1009,8 +1002,8 @@ static void epic_tx_error(struct net_device *dev, struct epic_private *ep,
 #ifndef final_version
 	/* There was an major error, log it. */
 	if (debug > 1)
-		printk(KERN_DEBUG "%s: Transmit error, Tx status %8.8x.\n",
-		       dev->name, status);
+		netdev_dbg(dev, "Transmit error, Tx status %8.8x.\n",
+			   status);
 #endif
 	stats->tx_errors++;
 	if (status & 0x1050)
@@ -1057,9 +1050,8 @@ static void epic_tx(struct net_device *dev, struct epic_private *ep)
 
 #ifndef final_version
 	if (cur_tx - dirty_tx > TX_RING_SIZE) {
-		printk(KERN_WARNING
-		       "%s: Out-of-sync dirty pointer, %d vs. %d, full=%d.\n",
-		       dev->name, dirty_tx, cur_tx, ep->tx_full);
+		netdev_warn(dev, "Out-of-sync dirty pointer, %d vs. %d, full=%d.\n",
+			    dirty_tx, cur_tx, ep->tx_full);
 		dirty_tx += TX_RING_SIZE;
 	}
 #endif
@@ -1086,8 +1078,8 @@ static irqreturn_t epic_interrupt(int irq, void *dev_instance)
 	ew32(INTSTAT, status & EpicNormalEvent);
 
 	if (debug > 4) {
-		printk(KERN_DEBUG "%s: Interrupt, status=%#8.8x new "
-		       "intstat=%#8.8x.\n", dev->name, status, er32(INTSTAT));
+		netdev_dbg(dev, "Interrupt, status=%#8.8x new intstat=%#8.8x.\n",
+			   status, er32(INTSTAT));
 	}
 
 	if ((status & IntrSummary) == 0)
@@ -1125,8 +1117,8 @@ static irqreturn_t epic_interrupt(int irq, void *dev_instance)
 			ew32(COMMAND, RestartTx);
 		}
 		if (status & PCIBusErr170) {
-			printk(KERN_ERR "%s: PCI Bus Error! status %4.4x.\n",
-					 dev->name, status);
+			netdev_err(dev, "PCI Bus Error! status %4.4x.\n",
+				   status);
 			epic_pause(dev);
 			epic_restart(dev);
 		}
@@ -1136,8 +1128,8 @@ static irqreturn_t epic_interrupt(int irq, void *dev_instance)
 
 out:
 	if (debug > 3) {
-		printk(KERN_DEBUG "%s: exit interrupt, intr_status=%#4.4x.\n",
-				   dev->name, status);
+		netdev_dbg(dev, "exit interrupt, intr_status=%#4.4x.\n",
+			   status);
 	}
 
 	return IRQ_RETVAL(handled);
@@ -1151,7 +1143,7 @@ static int epic_rx(struct net_device *dev, int budget)
 	int work_done = 0;
 
 	if (debug > 4)
-		printk(KERN_DEBUG " In epic_rx(), entry %d %8.8x.\n", entry,
+		netdev_dbg(dev, " In epic_rx(), entry %d %8.8x.\n", entry,
 			   ep->rx_ring[entry].rxstatus);
 
 	if (rx_work_limit > budget)
@@ -1162,16 +1154,17 @@ static int epic_rx(struct net_device *dev, int budget)
 		int status = ep->rx_ring[entry].rxstatus;
 
 		if (debug > 4)
-			printk(KERN_DEBUG "  epic_rx() status was %8.8x.\n", status);
+			netdev_dbg(dev, "  epic_rx() status was %8.8x.\n",
+				   status);
 		if (--rx_work_limit < 0)
 			break;
 		if (status & 0x2006) {
 			if (debug > 2)
-				printk(KERN_DEBUG "%s: epic_rx() error status was %8.8x.\n",
-					   dev->name, status);
+				netdev_dbg(dev, "epic_rx() error status was %8.8x.\n",
+					   status);
 			if (status & 0x2000) {
-				printk(KERN_WARNING "%s: Oversized Ethernet frame spanned "
-					   "multiple buffers, status %4.4x!\n", dev->name, status);
+				netdev_warn(dev, "Oversized Ethernet frame spanned multiple buffers, status %4.4x!\n",
+					    status);
 				dev->stats.rx_length_errors++;
 			} else if (status & 0x0006)
 				/* Rx Frame errors are counted in hardware. */
@@ -1183,9 +1176,8 @@ static int epic_rx(struct net_device *dev, int budget)
 			struct sk_buff *skb;
 
 			if (pkt_len > PKT_BUF_SZ - 4) {
-				printk(KERN_ERR "%s: Oversized Ethernet frame, status %x "
-					   "%d bytes.\n",
-					   dev->name, status, pkt_len);
+				netdev_err(dev, "Oversized Ethernet frame, status %x %d bytes.\n",
+					   status, pkt_len);
 				pkt_len = 1514;
 			}
 			/* Check if the packet is long enough to accept without copying
@@ -1305,8 +1297,8 @@ static int epic_close(struct net_device *dev)
 	napi_disable(&ep->napi);
 
 	if (debug > 1)
-		printk(KERN_DEBUG "%s: Shutting down ethercard, status was %2.2x.\n",
-		       dev->name, er32(INTSTAT));
+		netdev_dbg(dev, "Shutting down ethercard, status was %2.2x.\n",
+			   er32(INTSTAT));
 
 	del_timer_sync(&ep->timer);
 
@@ -1324,7 +1316,7 @@ static int epic_close(struct net_device *dev)
 		ep->rx_ring[i].buflength = 0;
 		if (skb) {
 			pci_unmap_single(pdev, ep->rx_ring[i].bufaddr,
-				 	 ep->rx_buf_sz, PCI_DMA_FROMDEVICE);
+					 ep->rx_buf_sz, PCI_DMA_FROMDEVICE);
 			dev_kfree_skb(skb);
 		}
 		ep->rx_ring[i].bufaddr = 0xBADF00D0; /* An invalid address. */
@@ -1587,8 +1579,7 @@ static int __init epic_init (void)
 {
 /* when a module, this is printed whether or not devices are found in probe */
 #ifdef MODULE
-	printk (KERN_INFO "%s%s",
-		version, version2);
+	pr_info("%s%s\n", version, version2);
 #endif
 
 	return pci_register_driver(&epic_driver);
-- 
cgit 


From 6389aa458ed99545aa60038f28aa6c0602ecb11a Mon Sep 17 00:00:00 2001
From: Ben Boeckel <mathstuf@gmail.com>
Date: Fri, 1 Nov 2013 08:53:31 -0400
Subject: smc91x: replace printk with netdev_ calls

Also snipes some whitespace errors.

Signed-off-by: Ben Boeckel <mathstuf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/smsc/smc91x.c | 237 ++++++++++++++++++-------------------
 drivers/net/ethernet/smsc/smc91x.h |   4 +-
 2 files changed, 118 insertions(+), 123 deletions(-)

diff --git a/drivers/net/ethernet/smsc/smc91x.c b/drivers/net/ethernet/smsc/smc91x.c
index 73be7f3982e6..0c9b5d94154f 100644
--- a/drivers/net/ethernet/smsc/smc91x.c
+++ b/drivers/net/ethernet/smsc/smc91x.c
@@ -58,7 +58,7 @@
  *   22/09/04  Nicolas Pitre      big update (see commit log for details)
  */
 static const char version[] =
-	"smc91x.c: v1.1, sep 22 2004 by Nicolas Pitre <nico@fluxnic.net>\n";
+	"smc91x.c: v1.1, sep 22 2004 by Nicolas Pitre <nico@fluxnic.net>";
 
 /* Debugging level */
 #ifndef SMC_DEBUG
@@ -149,16 +149,16 @@ MODULE_ALIAS("platform:smc91x");
 #define MII_DELAY		1
 
 #if SMC_DEBUG > 0
-#define DBG(n, args...)					\
+#define DBG(n, dev, args...)				\
 	do {						\
 		if (SMC_DEBUG >= (n))			\
-			printk(args);	\
+			netdev_dbg(dev, args);		\
 	} while (0)
 
-#define PRINTK(args...)   printk(args)
+#define PRINTK(dev, args...)   netdev_info(dev, args)
 #else
-#define DBG(n, args...)   do { } while(0)
-#define PRINTK(args...)   printk(KERN_DEBUG args)
+#define DBG(n, dev, args...)   do { } while (0)
+#define PRINTK(dev, args...)   netdev_dbg(dev, args)
 #endif
 
 #if SMC_DEBUG > 3
@@ -173,24 +173,26 @@ static void PRINT_PKT(u_char *buf, int length)
 
 	for (i = 0; i < lines ; i ++) {
 		int cur;
+		printk(KERN_DEBUG);
 		for (cur = 0; cur < 8; cur++) {
 			u_char a, b;
 			a = *buf++;
 			b = *buf++;
-			printk("%02x%02x ", a, b);
+			pr_cont("%02x%02x ", a, b);
 		}
-		printk("\n");
+		pr_cont("\n");
 	}
+	printk(KERN_DEBUG);
 	for (i = 0; i < remainder/2 ; i++) {
 		u_char a, b;
 		a = *buf++;
 		b = *buf++;
-		printk("%02x%02x ", a, b);
+		pr_cont("%02x%02x ", a, b);
 	}
-	printk("\n");
+	pr_cont("\n");
 }
 #else
-#define PRINT_PKT(x...)  do { } while(0)
+#define PRINT_PKT(x...)  do { } while (0)
 #endif
 
 
@@ -226,8 +228,8 @@ static void PRINT_PKT(u_char *buf, int length)
 		unsigned long timeout = jiffies + 2;			\
 		while (SMC_GET_MMU_CMD(lp) & MC_BUSY) {		\
 			if (time_after(jiffies, timeout)) {		\
-				printk("%s: timeout %s line %d\n",	\
-					dev->name, __FILE__, __LINE__);	\
+				netdev_dbg(dev, "timeout %s line %d\n",	\
+					   __FILE__, __LINE__);		\
 				break;					\
 			}						\
 			cpu_relax();					\
@@ -246,7 +248,7 @@ static void smc_reset(struct net_device *dev)
 	unsigned int ctl, cfg;
 	struct sk_buff *pending_skb;
 
-	DBG(2, "%s: %s\n", dev->name, __func__);
+	DBG(2, dev, "%s\n", __func__);
 
 	/* Disable all interrupts, block TX tasklet */
 	spin_lock_irq(&lp->lock);
@@ -339,7 +341,7 @@ static void smc_enable(struct net_device *dev)
 	void __iomem *ioaddr = lp->base;
 	int mask;
 
-	DBG(2, "%s: %s\n", dev->name, __func__);
+	DBG(2, dev, "%s\n", __func__);
 
 	/* see the header file for options in TCR/RCR DEFAULT */
 	SMC_SELECT_BANK(lp, 0);
@@ -373,7 +375,7 @@ static void smc_shutdown(struct net_device *dev)
 	void __iomem *ioaddr = lp->base;
 	struct sk_buff *pending_skb;
 
-	DBG(2, "%s: %s\n", CARDNAME, __func__);
+	DBG(2, dev, "%s: %s\n", CARDNAME, __func__);
 
 	/* no more interrupts for me */
 	spin_lock_irq(&lp->lock);
@@ -406,11 +408,11 @@ static inline void  smc_rcv(struct net_device *dev)
 	void __iomem *ioaddr = lp->base;
 	unsigned int packet_number, status, packet_len;
 
-	DBG(3, "%s: %s\n", dev->name, __func__);
+	DBG(3, dev, "%s\n", __func__);
 
 	packet_number = SMC_GET_RXFIFO(lp);
 	if (unlikely(packet_number & RXFIFO_REMPTY)) {
-		PRINTK("%s: smc_rcv with nothing on FIFO.\n", dev->name);
+		PRINTK(dev, "smc_rcv with nothing on FIFO.\n");
 		return;
 	}
 
@@ -420,9 +422,8 @@ static inline void  smc_rcv(struct net_device *dev)
 	/* First two words are status and packet length */
 	SMC_GET_PKT_HDR(lp, status, packet_len);
 	packet_len &= 0x07ff;  /* mask off top bits */
-	DBG(2, "%s: RX PNR 0x%x STATUS 0x%04x LENGTH 0x%04x (%d)\n",
-		dev->name, packet_number, status,
-		packet_len, packet_len);
+	DBG(2, dev, "RX PNR 0x%x STATUS 0x%04x LENGTH 0x%04x (%d)\n",
+	    packet_number, status, packet_len, packet_len);
 
 	back:
 	if (unlikely(packet_len < 6 || status & RS_ERRORS)) {
@@ -433,8 +434,8 @@ static inline void  smc_rcv(struct net_device *dev)
 		}
 		if (packet_len < 6) {
 			/* bloody hardware */
-			printk(KERN_ERR "%s: fubar (rxlen %u status %x\n",
-					dev->name, packet_len, status);
+			netdev_err(dev, "fubar (rxlen %u status %x\n",
+				   packet_len, status);
 			status |= RS_TOOSHORT;
 		}
 		SMC_WAIT_MMU_BUSY(lp);
@@ -551,7 +552,7 @@ static void smc_hardware_send_pkt(unsigned long data)
 	unsigned char *buf;
 	unsigned long flags;
 
-	DBG(3, "%s: %s\n", dev->name, __func__);
+	DBG(3, dev, "%s\n", __func__);
 
 	if (!smc_special_trylock(&lp->lock, flags)) {
 		netif_stop_queue(dev);
@@ -568,7 +569,7 @@ static void smc_hardware_send_pkt(unsigned long data)
 
 	packet_no = SMC_GET_AR(lp);
 	if (unlikely(packet_no & AR_FAILED)) {
-		printk("%s: Memory allocation failed.\n", dev->name);
+		netdev_err(dev, "Memory allocation failed.\n");
 		dev->stats.tx_errors++;
 		dev->stats.tx_fifo_errors++;
 		smc_special_unlock(&lp->lock, flags);
@@ -581,8 +582,8 @@ static void smc_hardware_send_pkt(unsigned long data)
 
 	buf = skb->data;
 	len = skb->len;
-	DBG(2, "%s: TX PNR 0x%x LENGTH 0x%04x (%d) BUF 0x%p\n",
-		dev->name, packet_no, len, len, buf);
+	DBG(2, dev, "TX PNR 0x%x LENGTH 0x%04x (%d) BUF 0x%p\n",
+	    packet_no, len, len, buf);
 	PRINT_PKT(buf, len);
 
 	/*
@@ -637,7 +638,7 @@ static int smc_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	unsigned int numPages, poll_count, status;
 	unsigned long flags;
 
-	DBG(3, "%s: %s\n", dev->name, __func__);
+	DBG(3, dev, "%s\n", __func__);
 
 	BUG_ON(lp->pending_tx_skb != NULL);
 
@@ -654,7 +655,7 @@ static int smc_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	 */
 	numPages = ((skb->len & ~1) + (6 - 1)) >> 8;
 	if (unlikely(numPages > 7)) {
-		printk("%s: Far too big packet error.\n", dev->name);
+		netdev_warn(dev, "Far too big packet error.\n");
 		dev->stats.tx_errors++;
 		dev->stats.tx_dropped++;
 		dev_kfree_skb(skb);
@@ -685,7 +686,7 @@ static int smc_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
    	if (!poll_count) {
 		/* oh well, wait until the chip finds memory later */
 		netif_stop_queue(dev);
-		DBG(2, "%s: TX memory allocation deferred.\n", dev->name);
+		DBG(2, dev, "TX memory allocation deferred.\n");
 		SMC_ENABLE_INT(lp, IM_ALLOC_INT);
    	} else {
 		/*
@@ -709,12 +710,12 @@ static void smc_tx(struct net_device *dev)
 	void __iomem *ioaddr = lp->base;
 	unsigned int saved_packet, packet_no, tx_status, pkt_len;
 
-	DBG(3, "%s: %s\n", dev->name, __func__);
+	DBG(3, dev, "%s\n", __func__);
 
 	/* If the TX FIFO is empty then nothing to do */
 	packet_no = SMC_GET_TXFIFO(lp);
 	if (unlikely(packet_no & TXFIFO_TEMPTY)) {
-		PRINTK("%s: smc_tx with nothing on FIFO.\n", dev->name);
+		PRINTK(dev, "smc_tx with nothing on FIFO.\n");
 		return;
 	}
 
@@ -725,8 +726,8 @@ static void smc_tx(struct net_device *dev)
 	/* read the first word (status word) from this packet */
 	SMC_SET_PTR(lp, PTR_AUTOINC | PTR_READ);
 	SMC_GET_PKT_HDR(lp, tx_status, pkt_len);
-	DBG(2, "%s: TX STATUS 0x%04x PNR 0x%02x\n",
-		dev->name, tx_status, packet_no);
+	DBG(2, dev, "TX STATUS 0x%04x PNR 0x%02x\n",
+	    tx_status, packet_no);
 
 	if (!(tx_status & ES_TX_SUC))
 		dev->stats.tx_errors++;
@@ -735,14 +736,12 @@ static void smc_tx(struct net_device *dev)
 		dev->stats.tx_carrier_errors++;
 
 	if (tx_status & (ES_LATCOL | ES_16COL)) {
-		PRINTK("%s: %s occurred on last xmit\n", dev->name,
+		PRINTK(dev, "%s occurred on last xmit\n",
 		       (tx_status & ES_LATCOL) ?
 			"late collision" : "too many collisions");
 		dev->stats.tx_window_errors++;
 		if (!(dev->stats.tx_window_errors & 63) && net_ratelimit()) {
-			printk(KERN_INFO "%s: unexpectedly large number of "
-			       "bad collisions. Please check duplex "
-			       "setting.\n", dev->name);
+			netdev_info(dev, "unexpectedly large number of bad collisions. Please check duplex setting.\n");
 		}
 	}
 
@@ -830,8 +829,8 @@ static int smc_phy_read(struct net_device *dev, int phyaddr, int phyreg)
 	/* Return to idle state */
 	SMC_SET_MII(lp, SMC_GET_MII(lp) & ~(MII_MCLK|MII_MDOE|MII_MDO));
 
-	DBG(3, "%s: phyaddr=0x%x, phyreg=0x%x, phydata=0x%x\n",
-		__func__, phyaddr, phyreg, phydata);
+	DBG(3, dev, "%s: phyaddr=0x%x, phyreg=0x%x, phydata=0x%x\n",
+	    __func__, phyaddr, phyreg, phydata);
 
 	SMC_SELECT_BANK(lp, 2);
 	return phydata;
@@ -857,8 +856,8 @@ static void smc_phy_write(struct net_device *dev, int phyaddr, int phyreg,
 	/* Return to idle state */
 	SMC_SET_MII(lp, SMC_GET_MII(lp) & ~(MII_MCLK|MII_MDOE|MII_MDO));
 
-	DBG(3, "%s: phyaddr=0x%x, phyreg=0x%x, phydata=0x%x\n",
-		__func__, phyaddr, phyreg, phydata);
+	DBG(3, dev, "%s: phyaddr=0x%x, phyreg=0x%x, phydata=0x%x\n",
+	    __func__, phyaddr, phyreg, phydata);
 
 	SMC_SELECT_BANK(lp, 2);
 }
@@ -871,7 +870,7 @@ static void smc_phy_detect(struct net_device *dev)
 	struct smc_local *lp = netdev_priv(dev);
 	int phyaddr;
 
-	DBG(2, "%s: %s\n", dev->name, __func__);
+	DBG(2, dev, "%s\n", __func__);
 
 	lp->phy_type = 0;
 
@@ -886,8 +885,8 @@ static void smc_phy_detect(struct net_device *dev)
 		id1 = smc_phy_read(dev, phyaddr & 31, MII_PHYSID1);
 		id2 = smc_phy_read(dev, phyaddr & 31, MII_PHYSID2);
 
-		DBG(3, "%s: phy_id1=0x%x, phy_id2=0x%x\n",
-			dev->name, id1, id2);
+		DBG(3, dev, "phy_id1=0x%x, phy_id2=0x%x\n",
+		    id1, id2);
 
 		/* Make sure it is a valid identifier */
 		if (id1 != 0x0000 && id1 != 0xffff && id1 != 0x8000 &&
@@ -910,7 +909,7 @@ static int smc_phy_fixed(struct net_device *dev)
 	int phyaddr = lp->mii.phy_id;
 	int bmcr, cfg1;
 
-	DBG(3, "%s: %s\n", dev->name, __func__);
+	DBG(3, dev, "%s\n", __func__);
 
 	/* Enter Link Disable state */
 	cfg1 = smc_phy_read(dev, phyaddr, PHY_CFG1_REG);
@@ -1044,7 +1043,7 @@ static void smc_phy_configure(struct work_struct *work)
 	int my_ad_caps; /* My Advertised capabilities */
 	int status;
 
-	DBG(3, "%s:smc_program_phy()\n", dev->name);
+	DBG(3, dev, "smc_program_phy()\n");
 
 	spin_lock_irq(&lp->lock);
 
@@ -1055,7 +1054,7 @@ static void smc_phy_configure(struct work_struct *work)
 		goto smc_phy_configure_exit;
 
 	if (smc_phy_reset(dev, phyaddr)) {
-		printk("%s: PHY reset timed out\n", dev->name);
+		netdev_info(dev, "PHY reset timed out\n");
 		goto smc_phy_configure_exit;
 	}
 
@@ -1082,7 +1081,7 @@ static void smc_phy_configure(struct work_struct *work)
 	my_phy_caps = smc_phy_read(dev, phyaddr, MII_BMSR);
 
 	if (!(my_phy_caps & BMSR_ANEGCAPABLE)) {
-		printk(KERN_INFO "Auto negotiation NOT supported\n");
+		netdev_info(dev, "Auto negotiation NOT supported\n");
 		smc_phy_fixed(dev);
 		goto smc_phy_configure_exit;
 	}
@@ -1118,8 +1117,8 @@ static void smc_phy_configure(struct work_struct *work)
 	 */
 	status = smc_phy_read(dev, phyaddr, MII_ADVERTISE);
 
-	DBG(2, "%s: phy caps=%x\n", dev->name, my_phy_caps);
-	DBG(2, "%s: phy advertised caps=%x\n", dev->name, my_ad_caps);
+	DBG(2, dev, "phy caps=%x\n", my_phy_caps);
+	DBG(2, dev, "phy advertised caps=%x\n", my_ad_caps);
 
 	/* Restart auto-negotiation process in order to advertise my caps */
 	smc_phy_write(dev, phyaddr, MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART);
@@ -1143,7 +1142,7 @@ static void smc_phy_interrupt(struct net_device *dev)
 	int phyaddr = lp->mii.phy_id;
 	int phy18;
 
-	DBG(2, "%s: %s\n", dev->name, __func__);
+	DBG(2, dev, "%s\n", __func__);
 
 	if (lp->phy_type == 0)
 		return;
@@ -1179,8 +1178,8 @@ static void smc_10bt_check_media(struct net_device *dev, int init)
 			netif_carrier_on(dev);
 		}
 		if (netif_msg_link(lp))
-			printk(KERN_INFO "%s: link %s\n", dev->name,
-			       new_carrier ? "up" : "down");
+			netdev_info(dev, "link %s\n",
+				    new_carrier ? "up" : "down");
 	}
 }
 
@@ -1211,7 +1210,7 @@ static irqreturn_t smc_interrupt(int irq, void *dev_id)
 	int status, mask, timeout, card_stats;
 	int saved_pointer;
 
-	DBG(3, "%s: %s\n", dev->name, __func__);
+	DBG(3, dev, "%s\n", __func__);
 
 	spin_lock(&lp->lock);
 
@@ -1230,12 +1229,12 @@ static irqreturn_t smc_interrupt(int irq, void *dev_id)
 	do {
 		status = SMC_GET_INT(lp);
 
-		DBG(2, "%s: INT 0x%02x MASK 0x%02x MEM 0x%04x FIFO 0x%04x\n",
-			dev->name, status, mask,
-			({ int meminfo; SMC_SELECT_BANK(lp, 0);
-			   meminfo = SMC_GET_MIR(lp);
-			   SMC_SELECT_BANK(lp, 2); meminfo; }),
-			SMC_GET_FIFO(lp));
+		DBG(2, dev, "INT 0x%02x MASK 0x%02x MEM 0x%04x FIFO 0x%04x\n",
+		    status, mask,
+		    ({ int meminfo; SMC_SELECT_BANK(lp, 0);
+		       meminfo = SMC_GET_MIR(lp);
+		       SMC_SELECT_BANK(lp, 2); meminfo; }),
+		    SMC_GET_FIFO(lp));
 
 		status &= mask;
 		if (!status)
@@ -1243,20 +1242,20 @@ static irqreturn_t smc_interrupt(int irq, void *dev_id)
 
 		if (status & IM_TX_INT) {
 			/* do this before RX as it will free memory quickly */
-			DBG(3, "%s: TX int\n", dev->name);
+			DBG(3, dev, "TX int\n");
 			smc_tx(dev);
 			SMC_ACK_INT(lp, IM_TX_INT);
 			if (THROTTLE_TX_PKTS)
 				netif_wake_queue(dev);
 		} else if (status & IM_RCV_INT) {
-			DBG(3, "%s: RX irq\n", dev->name);
+			DBG(3, dev, "RX irq\n");
 			smc_rcv(dev);
 		} else if (status & IM_ALLOC_INT) {
-			DBG(3, "%s: Allocation irq\n", dev->name);
+			DBG(3, dev, "Allocation irq\n");
 			tasklet_hi_schedule(&lp->tx_task);
 			mask &= ~IM_ALLOC_INT;
 		} else if (status & IM_TX_EMPTY_INT) {
-			DBG(3, "%s: TX empty\n", dev->name);
+			DBG(3, dev, "TX empty\n");
 			mask &= ~IM_TX_EMPTY_INT;
 
 			/* update stats */
@@ -1271,10 +1270,10 @@ static irqreturn_t smc_interrupt(int irq, void *dev_id)
 			/* multiple collisions */
 			dev->stats.collisions += card_stats & 0xF;
 		} else if (status & IM_RX_OVRN_INT) {
-			DBG(1, "%s: RX overrun (EPH_ST 0x%04x)\n", dev->name,
-			       ({ int eph_st; SMC_SELECT_BANK(lp, 0);
-				  eph_st = SMC_GET_EPH_STATUS(lp);
-				  SMC_SELECT_BANK(lp, 2); eph_st; }));
+			DBG(1, dev, "RX overrun (EPH_ST 0x%04x)\n",
+			    ({ int eph_st; SMC_SELECT_BANK(lp, 0);
+			       eph_st = SMC_GET_EPH_STATUS(lp);
+			       SMC_SELECT_BANK(lp, 2); eph_st; }));
 			SMC_ACK_INT(lp, IM_RX_OVRN_INT);
 			dev->stats.rx_errors++;
 			dev->stats.rx_fifo_errors++;
@@ -1285,7 +1284,7 @@ static irqreturn_t smc_interrupt(int irq, void *dev_id)
 			smc_phy_interrupt(dev);
 		} else if (status & IM_ERCV_INT) {
 			SMC_ACK_INT(lp, IM_ERCV_INT);
-			PRINTK("%s: UNSUPPORTED: ERCV INTERRUPT\n", dev->name);
+			PRINTK(dev, "UNSUPPORTED: ERCV INTERRUPT\n");
 		}
 	} while (--timeout);
 
@@ -1296,11 +1295,11 @@ static irqreturn_t smc_interrupt(int irq, void *dev_id)
 
 #ifndef CONFIG_NET_POLL_CONTROLLER
 	if (timeout == MAX_IRQ_LOOPS)
-		PRINTK("%s: spurious interrupt (mask = 0x%02x)\n",
-		       dev->name, mask);
+		PRINTK(dev, "spurious interrupt (mask = 0x%02x)\n",
+		       mask);
 #endif
-	DBG(3, "%s: Interrupt done (%d loops)\n",
-	       dev->name, MAX_IRQ_LOOPS - timeout);
+	DBG(3, dev, "Interrupt done (%d loops)\n",
+	    MAX_IRQ_LOOPS - timeout);
 
 	/*
 	 * We return IRQ_HANDLED unconditionally here even if there was
@@ -1333,7 +1332,7 @@ static void smc_timeout(struct net_device *dev)
 	void __iomem *ioaddr = lp->base;
 	int status, mask, eph_st, meminfo, fifo;
 
-	DBG(2, "%s: %s\n", dev->name, __func__);
+	DBG(2, dev, "%s\n", __func__);
 
 	spin_lock_irq(&lp->lock);
 	status = SMC_GET_INT(lp);
@@ -1344,9 +1343,8 @@ static void smc_timeout(struct net_device *dev)
 	meminfo = SMC_GET_MIR(lp);
 	SMC_SELECT_BANK(lp, 2);
 	spin_unlock_irq(&lp->lock);
-	PRINTK( "%s: TX timeout (INT 0x%02x INTMASK 0x%02x "
-		"MEM 0x%04x FIFO 0x%04x EPH_ST 0x%04x)\n",
-		dev->name, status, mask, meminfo, fifo, eph_st );
+	PRINTK(dev, "TX timeout (INT 0x%02x INTMASK 0x%02x MEM 0x%04x FIFO 0x%04x EPH_ST 0x%04x)\n",
+	       status, mask, meminfo, fifo, eph_st);
 
 	smc_reset(dev);
 	smc_enable(dev);
@@ -1377,10 +1375,10 @@ static void smc_set_multicast_list(struct net_device *dev)
 	unsigned char multicast_table[8];
 	int update_multicast = 0;
 
-	DBG(2, "%s: %s\n", dev->name, __func__);
+	DBG(2, dev, "%s\n", __func__);
 
 	if (dev->flags & IFF_PROMISC) {
-		DBG(2, "%s: RCR_PRMS\n", dev->name);
+		DBG(2, dev, "RCR_PRMS\n");
 		lp->rcr_cur_mode |= RCR_PRMS;
 	}
 
@@ -1395,7 +1393,7 @@ static void smc_set_multicast_list(struct net_device *dev)
 	 * checked before the table is
 	 */
 	else if (dev->flags & IFF_ALLMULTI || netdev_mc_count(dev) > 16) {
-		DBG(2, "%s: RCR_ALMUL\n", dev->name);
+		DBG(2, dev, "RCR_ALMUL\n");
 		lp->rcr_cur_mode |= RCR_ALMUL;
 	}
 
@@ -1437,7 +1435,7 @@ static void smc_set_multicast_list(struct net_device *dev)
 		/* now, the table can be loaded into the chipset */
 		update_multicast = 1;
 	} else  {
-		DBG(2, "%s: ~(RCR_PRMS|RCR_ALMUL)\n", dev->name);
+		DBG(2, dev, "~(RCR_PRMS|RCR_ALMUL)\n");
 		lp->rcr_cur_mode &= ~(RCR_PRMS | RCR_ALMUL);
 
 		/*
@@ -1470,7 +1468,7 @@ smc_open(struct net_device *dev)
 {
 	struct smc_local *lp = netdev_priv(dev);
 
-	DBG(2, "%s: %s\n", dev->name, __func__);
+	DBG(2, dev, "%s\n", __func__);
 
 	/* Setup the default Register Modes */
 	lp->tcr_cur_mode = TCR_DEFAULT;
@@ -1514,7 +1512,7 @@ static int smc_close(struct net_device *dev)
 {
 	struct smc_local *lp = netdev_priv(dev);
 
-	DBG(2, "%s: %s\n", dev->name, __func__);
+	DBG(2, dev, "%s\n", __func__);
 
 	netif_stop_queue(dev);
 	netif_carrier_off(dev);
@@ -1694,7 +1692,7 @@ static int smc_ethtool_geteeprom(struct net_device *dev,
 	int i;
 	int imax;
 
-	DBG(1, "Reading %d bytes at %d(0x%x)\n",
+	DBG(1, dev, "Reading %d bytes at %d(0x%x)\n",
 		eeprom->len, eeprom->offset, eeprom->offset);
 	imax = smc_ethtool_geteeprom_len(dev);
 	for (i = 0; i < eeprom->len; i += 2) {
@@ -1706,7 +1704,7 @@ static int smc_ethtool_geteeprom(struct net_device *dev,
 		ret = smc_read_eeprom_word(dev, offset >> 1, &wbuf);
 		if (ret != 0)
 			return ret;
-		DBG(2, "Read 0x%x from 0x%x\n", wbuf, offset >> 1);
+		DBG(2, dev, "Read 0x%x from 0x%x\n", wbuf, offset >> 1);
 		data[i] = (wbuf >> 8) & 0xff;
 		data[i+1] = wbuf & 0xff;
 	}
@@ -1719,8 +1717,8 @@ static int smc_ethtool_seteeprom(struct net_device *dev,
 	int i;
 	int imax;
 
-	DBG(1, "Writing %d bytes to %d(0x%x)\n",
-			eeprom->len, eeprom->offset, eeprom->offset);
+	DBG(1, dev, "Writing %d bytes to %d(0x%x)\n",
+	    eeprom->len, eeprom->offset, eeprom->offset);
 	imax = smc_ethtool_geteeprom_len(dev);
 	for (i = 0; i < eeprom->len; i += 2) {
 		int ret;
@@ -1729,7 +1727,7 @@ static int smc_ethtool_seteeprom(struct net_device *dev,
 		if (offset > imax)
 			break;
 		wbuf = (data[i] << 8) | data[i + 1];
-		DBG(2, "Writing 0x%x to 0x%x\n", wbuf, offset >> 1);
+		DBG(2, dev, "Writing 0x%x to 0x%x\n", wbuf, offset >> 1);
 		ret = smc_write_eeprom_word(dev, offset >> 1, wbuf);
 		if (ret != 0)
 			return ret;
@@ -1784,7 +1782,7 @@ static int smc_findirq(struct smc_local *lp)
 	int timeout = 20;
 	unsigned long cookie;
 
-	DBG(2, "%s: %s\n", CARDNAME, __func__);
+	DBG(2, dev, "%s: %s\n", CARDNAME, __func__);
 
 	cookie = probe_irq_on();
 
@@ -1856,21 +1854,21 @@ static int smc_probe(struct net_device *dev, void __iomem *ioaddr,
 		     unsigned long irq_flags)
 {
 	struct smc_local *lp = netdev_priv(dev);
-	static int version_printed = 0;
 	int retval;
 	unsigned int val, revision_register;
 	const char *version_string;
 
-	DBG(2, "%s: %s\n", CARDNAME, __func__);
+	DBG(2, dev, "%s: %s\n", CARDNAME, __func__);
 
 	/* First, see if the high byte is 0x33 */
 	val = SMC_CURRENT_BANK(lp);
-	DBG(2, "%s: bank signature probe returned 0x%04x\n", CARDNAME, val);
+	DBG(2, dev, "%s: bank signature probe returned 0x%04x\n",
+	    CARDNAME, val);
 	if ((val & 0xFF00) != 0x3300) {
 		if ((val & 0xFF) == 0x33) {
-			printk(KERN_WARNING
-				"%s: Detected possible byte-swapped interface"
-				" at IOADDR %p\n", CARDNAME, ioaddr);
+			netdev_warn(dev,
+				    "%s: Detected possible byte-swapped interface at IOADDR %p\n",
+				    CARDNAME, ioaddr);
 		}
 		retval = -ENODEV;
 		goto err_out;
@@ -1897,8 +1895,8 @@ static int smc_probe(struct net_device *dev, void __iomem *ioaddr,
 	val = SMC_GET_BASE(lp);
 	val = ((val & 0x1F00) >> 3) << SMC_IO_SHIFT;
 	if (((unsigned int)ioaddr & (0x3e0 << SMC_IO_SHIFT)) != val) {
-		printk("%s: IOADDR %p doesn't match configuration (%x).\n",
-			CARDNAME, ioaddr, val);
+		netdev_warn(dev, "%s: IOADDR %p doesn't match configuration (%x).\n",
+			    CARDNAME, ioaddr, val);
 	}
 
 	/*
@@ -1908,21 +1906,19 @@ static int smc_probe(struct net_device *dev, void __iomem *ioaddr,
 	 */
 	SMC_SELECT_BANK(lp, 3);
 	revision_register = SMC_GET_REV(lp);
-	DBG(2, "%s: revision = 0x%04x\n", CARDNAME, revision_register);
+	DBG(2, dev, "%s: revision = 0x%04x\n", CARDNAME, revision_register);
 	version_string = chip_ids[ (revision_register >> 4) & 0xF];
 	if (!version_string || (revision_register & 0xff00) != 0x3300) {
 		/* I don't recognize this chip, so... */
-		printk("%s: IO %p: Unrecognized revision register 0x%04x"
-			", Contact author.\n", CARDNAME,
-			ioaddr, revision_register);
+		netdev_warn(dev, "%s: IO %p: Unrecognized revision register 0x%04x, Contact author.\n",
+			    CARDNAME, ioaddr, revision_register);
 
 		retval = -ENODEV;
 		goto err_out;
 	}
 
 	/* At this point I'll assume that the chip is an SMC91x. */
-	if (version_printed++ == 0)
-		printk("%s", version);
+	pr_info_once("%s\n", version);
 
 	/* fill in some of the fields */
 	dev->base_addr = (unsigned long)ioaddr;
@@ -1940,7 +1936,7 @@ static int smc_probe(struct net_device *dev, void __iomem *ioaddr,
 	/*
 	 * If dev->irq is 0, then the device has to be banged on to see
 	 * what the IRQ is.
- 	 *
+	 *
 	 * This banging doesn't always detect the IRQ, for unknown reasons.
 	 * a workaround is to reset the chip and try again.
 	 *
@@ -1965,8 +1961,7 @@ static int smc_probe(struct net_device *dev, void __iomem *ioaddr,
 		}
 	}
 	if (dev->irq == 0) {
-		printk("%s: Couldn't autodetect your IRQ. Use irq=xx.\n",
-			dev->name);
+		netdev_warn(dev, "Couldn't autodetect your IRQ. Use irq=xx.\n");
 		retval = -ENODEV;
 		goto err_out;
 	}
@@ -2030,32 +2025,31 @@ static int smc_probe(struct net_device *dev, void __iomem *ioaddr,
 	retval = register_netdev(dev);
 	if (retval == 0) {
 		/* now, print out the card info, in a short format.. */
-		printk("%s: %s (rev %d) at %p IRQ %d",
-			dev->name, version_string, revision_register & 0x0f,
-			lp->base, dev->irq);
+		netdev_info(dev, "%s (rev %d) at %p IRQ %d",
+			    version_string, revision_register & 0x0f,
+			    lp->base, dev->irq);
 
 		if (dev->dma != (unsigned char)-1)
-			printk(" DMA %d", dev->dma);
+			pr_cont(" DMA %d", dev->dma);
 
-		printk("%s%s\n",
+		pr_cont("%s%s\n",
 			lp->cfg.flags & SMC91X_NOWAIT ? " [nowait]" : "",
 			THROTTLE_TX_PKTS ? " [throttle_tx]" : "");
 
 		if (!is_valid_ether_addr(dev->dev_addr)) {
-			printk("%s: Invalid ethernet MAC address.  Please "
-			       "set using ifconfig\n", dev->name);
+			netdev_warn(dev, "Invalid ethernet MAC address. Please set using ifconfig\n");
 		} else {
 			/* Print the Ethernet address */
-			printk("%s: Ethernet addr: %pM\n",
-			       dev->name, dev->dev_addr);
+			netdev_info(dev, "Ethernet addr: %pM\n",
+				    dev->dev_addr);
 		}
 
 		if (lp->phy_type == 0) {
-			PRINTK("%s: No PHY found\n", dev->name);
+			PRINTK(dev, "No PHY found\n");
 		} else if ((lp->phy_type & 0xfffffff0) == 0x0016f840) {
-			PRINTK("%s: PHY LAN83C183 (LAN91C111 Internal)\n", dev->name);
+			PRINTK(dev, "PHY LAN83C183 (LAN91C111 Internal)\n");
 		} else if ((lp->phy_type & 0xfffffff0) == 0x02821c50) {
-			PRINTK("%s: PHY LAN83C180\n", dev->name);
+			PRINTK(dev, "PHY LAN83C180\n");
 		}
 	}
 
@@ -2165,7 +2159,8 @@ static inline void smc_request_datacs(struct platform_device *pdev, struct net_d
 			return;
 
 		if(!request_mem_region(res->start, SMC_DATA_EXTENT, CARDNAME)) {
-			printk(KERN_INFO "%s: failed to request datacs memory region.\n", CARDNAME);
+			netdev_info(ndev, "%s: failed to request datacs memory region.\n",
+				    CARDNAME);
 			return;
 		}
 
@@ -2307,7 +2302,7 @@ static int smc_drv_probe(struct platform_device *pdev)
  out_free_netdev:
 	free_netdev(ndev);
  out:
-	printk("%s: not found (%d).\n", CARDNAME, ret);
+	pr_info("%s: not found (%d).\n", CARDNAME, ret);
 
 	return ret;
 }
diff --git a/drivers/net/ethernet/smsc/smc91x.h b/drivers/net/ethernet/smsc/smc91x.h
index 98eedb90cdc3..c9d4c872e81d 100644
--- a/drivers/net/ethernet/smsc/smc91x.h
+++ b/drivers/net/ethernet/smsc/smc91x.h
@@ -907,8 +907,8 @@ static const char * chip_ids[ 16 ] =  {
 	({								\
 		int __b = SMC_CURRENT_BANK(lp);			\
 		if (unlikely((__b & ~0xf0) != (0x3300 | bank))) {	\
-			printk( "%s: bank reg screwed (0x%04x)\n",	\
-				CARDNAME, __b );			\
+			pr_err("%s: bank reg screwed (0x%04x)\n",	\
+			       CARDNAME, __b);				\
 			BUG();						\
 		}							\
 		reg<<SMC_IO_SHIFT;					\
-- 
cgit 


From dcdf8710fbfab7dfe6ceab537df771ab900ec5f0 Mon Sep 17 00:00:00 2001
From: Ben Boeckel <mathstuf@gmail.com>
Date: Fri, 1 Nov 2013 08:53:32 -0400
Subject: smc911x: replace printk with netdev_ calls

Also fixes an incorrect function comment (probably copy/paste).

Signed-off-by: Ben Boeckel <mathstuf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/smsc/smc911x.c | 331 ++++++++++++++++++------------------
 drivers/net/ethernet/smsc/smc911x.h |   2 +-
 2 files changed, 166 insertions(+), 167 deletions(-)

diff --git a/drivers/net/ethernet/smsc/smc911x.c b/drivers/net/ethernet/smsc/smc911x.c
index afe01c4088a3..0f096a890059 100644
--- a/drivers/net/ethernet/smsc/smc911x.c
+++ b/drivers/net/ethernet/smsc/smc911x.c
@@ -106,16 +106,16 @@ MODULE_ALIAS("platform:smc911x");
 #define POWER_DOWN		 1
 
 #if SMC_DEBUG > 0
-#define DBG(n, args...)				 \
+#define DBG(n, dev, args...)			 \
 	do {					 \
 		if (SMC_DEBUG & (n))		 \
-			printk(args);		 \
+			netdev_dbg(dev, args);	 \
 	} while (0)
 
-#define PRINTK(args...)   printk(args)
+#define PRINTK(dev, args...)   netdev_info(dev, args)
 #else
-#define DBG(n, args...)   do { } while (0)
-#define PRINTK(args...)   printk(KERN_DEBUG args)
+#define DBG(n, dev, args...)   do { } while (0)
+#define PRINTK(dev, args...)   netdev_dbg(dev, args)
 #endif
 
 #if SMC_DEBUG_PKTS > 0
@@ -130,21 +130,23 @@ static void PRINT_PKT(u_char *buf, int length)
 
 	for (i = 0; i < lines ; i ++) {
 		int cur;
+		printk(KERN_DEBUG);
 		for (cur = 0; cur < 8; cur++) {
 			u_char a, b;
 			a = *buf++;
 			b = *buf++;
-			printk("%02x%02x ", a, b);
+			pr_cont("%02x%02x ", a, b);
 		}
-		printk("\n");
+		pr_cont("\n");
 	}
+	printk(KERN_DEBUG);
 	for (i = 0; i < remainder/2 ; i++) {
 		u_char a, b;
 		a = *buf++;
 		b = *buf++;
-		printk("%02x%02x ", a, b);
+		pr_cont("%02x%02x ", a, b);
 	}
-	printk("\n");
+	pr_cont("\n");
 }
 #else
 #define PRINT_PKT(x...)  do { } while (0)
@@ -176,7 +178,7 @@ static void smc911x_reset(struct net_device *dev)
 	unsigned int reg, timeout=0, resets=1, irq_cfg;
 	unsigned long flags;
 
-	DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
+	DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
 
 	/*	 Take out of PM setting first */
 	if ((SMC_GET_PMT_CTRL(lp) & PMT_CTRL_READY_) == 0) {
@@ -188,7 +190,7 @@ static void smc911x_reset(struct net_device *dev)
 			reg = SMC_GET_PMT_CTRL(lp) & PMT_CTRL_READY_;
 		} while (--timeout && !reg);
 		if (timeout == 0) {
-			PRINTK("%s: smc911x_reset timeout waiting for PM restore\n", dev->name);
+			PRINTK(dev, "smc911x_reset timeout waiting for PM restore\n");
 			return;
 		}
 	}
@@ -206,14 +208,14 @@ static void smc911x_reset(struct net_device *dev)
 			reg = SMC_GET_HW_CFG(lp);
 			/* If chip indicates reset timeout then try again */
 			if (reg & HW_CFG_SRST_TO_) {
-				PRINTK("%s: chip reset timeout, retrying...\n", dev->name);
+				PRINTK(dev, "chip reset timeout, retrying...\n");
 				resets++;
 				break;
 			}
 		} while (--timeout && (reg & HW_CFG_SRST_));
 	}
 	if (timeout == 0) {
-		PRINTK("%s: smc911x_reset timeout waiting for reset\n", dev->name);
+		PRINTK(dev, "smc911x_reset timeout waiting for reset\n");
 		return;
 	}
 
@@ -223,7 +225,7 @@ static void smc911x_reset(struct net_device *dev)
 		udelay(10);
 
 	if (timeout == 0){
-		PRINTK("%s: smc911x_reset timeout waiting for EEPROM busy\n", dev->name);
+		PRINTK(dev, "smc911x_reset timeout waiting for EEPROM busy\n");
 		return;
 	}
 
@@ -270,7 +272,7 @@ static void smc911x_enable(struct net_device *dev)
 	unsigned mask, cfg, cr;
 	unsigned long flags;
 
-	DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
+	DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
 
 	spin_lock_irqsave(&lp->lock, flags);
 
@@ -296,7 +298,7 @@ static void smc911x_enable(struct net_device *dev)
 
 	/* Turn on receiver and enable RX */
 	if (cr & MAC_CR_RXEN_)
-		DBG(SMC_DEBUG_RX, "%s: Receiver already enabled\n", dev->name);
+		DBG(SMC_DEBUG_RX, dev, "Receiver already enabled\n");
 
 	SMC_SET_MAC_CR(lp, cr | MAC_CR_RXEN_);
 
@@ -327,7 +329,7 @@ static void smc911x_shutdown(struct net_device *dev)
 	unsigned cr;
 	unsigned long flags;
 
-	DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", CARDNAME, __func__);
+	DBG(SMC_DEBUG_FUNC, dev, "%s: --> %s\n", CARDNAME, __func__);
 
 	/* Disable IRQ's */
 	SMC_SET_INT_EN(lp, 0);
@@ -346,7 +348,8 @@ static inline void smc911x_drop_pkt(struct net_device *dev)
 	struct smc911x_local *lp = netdev_priv(dev);
 	unsigned int fifo_count, timeout, reg;
 
-	DBG(SMC_DEBUG_FUNC | SMC_DEBUG_RX, "%s: --> %s\n", CARDNAME, __func__);
+	DBG(SMC_DEBUG_FUNC | SMC_DEBUG_RX, dev, "%s: --> %s\n",
+	    CARDNAME, __func__);
 	fifo_count = SMC_GET_RX_FIFO_INF(lp) & 0xFFFF;
 	if (fifo_count <= 4) {
 		/* Manually dump the packet data */
@@ -361,7 +364,7 @@ static inline void smc911x_drop_pkt(struct net_device *dev)
 			reg = SMC_GET_RX_DP_CTRL(lp) & RX_DP_CTRL_FFWD_BUSY_;
 		} while (--timeout && reg);
 		if (timeout == 0) {
-			PRINTK("%s: timeout waiting for RX fast forward\n", dev->name);
+			PRINTK(dev, "timeout waiting for RX fast forward\n");
 		}
 	}
 }
@@ -379,11 +382,11 @@ static inline void	 smc911x_rcv(struct net_device *dev)
 	struct sk_buff *skb;
 	unsigned char *data;
 
-	DBG(SMC_DEBUG_FUNC | SMC_DEBUG_RX, "%s: --> %s\n",
-		dev->name, __func__);
+	DBG(SMC_DEBUG_FUNC | SMC_DEBUG_RX, dev, "--> %s\n",
+	    __func__);
 	status = SMC_GET_RX_STS_FIFO(lp);
-	DBG(SMC_DEBUG_RX, "%s: Rx pkt len %d status 0x%08x\n",
-		dev->name, (status & 0x3fff0000) >> 16, status & 0xc000ffff);
+	DBG(SMC_DEBUG_RX, dev, "Rx pkt len %d status 0x%08x\n",
+	    (status & 0x3fff0000) >> 16, status & 0xc000ffff);
 	pkt_len = (status & RX_STS_PKT_LEN_) >> 16;
 	if (status & RX_STS_ES_) {
 		/* Deal with a bad packet */
@@ -403,8 +406,7 @@ static inline void	 smc911x_rcv(struct net_device *dev)
 		/* Alloc a buffer with extra room for DMA alignment */
 		skb = netdev_alloc_skb(dev, pkt_len+32);
 		if (unlikely(skb == NULL)) {
-			PRINTK( "%s: Low memory, rcvd packet dropped.\n",
-				dev->name);
+			PRINTK(dev, "Low memory, rcvd packet dropped.\n");
 			dev->stats.rx_dropped++;
 			smc911x_drop_pkt(dev);
 			return;
@@ -422,8 +424,8 @@ static inline void	 smc911x_rcv(struct net_device *dev)
 		/* Lower the FIFO threshold if possible */
 		fifo = SMC_GET_FIFO_INT(lp);
 		if (fifo & 0xFF) fifo--;
-		DBG(SMC_DEBUG_RX, "%s: Setting RX stat FIFO threshold to %d\n",
-			dev->name, fifo & 0xff);
+		DBG(SMC_DEBUG_RX, dev, "Setting RX stat FIFO threshold to %d\n",
+		    fifo & 0xff);
 		SMC_SET_FIFO_INT(lp, fifo);
 		/* Setup RX DMA */
 		SMC_SET_RX_CFG(lp, RX_CFG_RX_END_ALGN16_ | ((2<<8) & RX_CFG_RXDOFF_));
@@ -436,7 +438,7 @@ static inline void	 smc911x_rcv(struct net_device *dev)
 		SMC_SET_RX_CFG(lp, RX_CFG_RX_END_ALGN4_ | ((2<<8) & RX_CFG_RXDOFF_));
 		SMC_PULL_DATA(lp, data, pkt_len+2+3);
 
-		DBG(SMC_DEBUG_PKTS, "%s: Received packet\n", dev->name);
+		DBG(SMC_DEBUG_PKTS, dev, "Received packet\n");
 		PRINT_PKT(data, ((pkt_len - 4) <= 64) ? pkt_len - 4 : 64);
 		skb->protocol = eth_type_trans(skb, dev);
 		netif_rx(skb);
@@ -456,7 +458,7 @@ static void smc911x_hardware_send_pkt(struct net_device *dev)
 	unsigned int cmdA, cmdB, len;
 	unsigned char *buf;
 
-	DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, "%s: --> %s\n", dev->name, __func__);
+	DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, dev, "--> %s\n", __func__);
 	BUG_ON(lp->pending_tx_skb == NULL);
 
 	skb = lp->pending_tx_skb;
@@ -481,12 +483,12 @@ static void smc911x_hardware_send_pkt(struct net_device *dev)
 	/* tag is packet length so we can use this in stats update later */
 	cmdB = (skb->len  << 16) | (skb->len & 0x7FF);
 
-	DBG(SMC_DEBUG_TX, "%s: TX PKT LENGTH 0x%04x (%d) BUF 0x%p CMDA 0x%08x CMDB 0x%08x\n",
-		 dev->name, len, len, buf, cmdA, cmdB);
+	DBG(SMC_DEBUG_TX, dev, "TX PKT LENGTH 0x%04x (%d) BUF 0x%p CMDA 0x%08x CMDB 0x%08x\n",
+	    len, len, buf, cmdA, cmdB);
 	SMC_SET_TX_FIFO(lp, cmdA);
 	SMC_SET_TX_FIFO(lp, cmdB);
 
-	DBG(SMC_DEBUG_PKTS, "%s: Transmitted packet\n", dev->name);
+	DBG(SMC_DEBUG_PKTS, dev, "Transmitted packet\n");
 	PRINT_PKT(buf, len <= 64 ? len : 64);
 
 	/* Send pkt via PIO or DMA */
@@ -517,20 +519,20 @@ static int smc911x_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	unsigned int free;
 	unsigned long flags;
 
-	DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, "%s: --> %s\n",
-		dev->name, __func__);
+	DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, dev, "--> %s\n",
+	    __func__);
 
 	spin_lock_irqsave(&lp->lock, flags);
 
 	BUG_ON(lp->pending_tx_skb != NULL);
 
 	free = SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TDFREE_;
-	DBG(SMC_DEBUG_TX, "%s: TX free space %d\n", dev->name, free);
+	DBG(SMC_DEBUG_TX, dev, "TX free space %d\n", free);
 
 	/* Turn off the flow when running out of space in FIFO */
 	if (free <= SMC911X_TX_FIFO_LOW_THRESHOLD) {
-		DBG(SMC_DEBUG_TX, "%s: Disabling data flow due to low FIFO space (%d)\n",
-			dev->name, free);
+		DBG(SMC_DEBUG_TX, dev, "Disabling data flow due to low FIFO space (%d)\n",
+		    free);
 		/* Reenable when at least 1 packet of size MTU present */
 		SMC_SET_FIFO_TDA(lp, (SMC911X_TX_FIFO_LOW_THRESHOLD)/64);
 		lp->tx_throttle = 1;
@@ -545,8 +547,8 @@ static int smc911x_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	 *	  End padding				 15 bytes
 	 */
 	if (unlikely(free < (skb->len + 8 + 15 + 15))) {
-		printk("%s: No Tx free space %d < %d\n",
-			dev->name, free, skb->len);
+		netdev_warn(dev, "No Tx free space %d < %d\n",
+			    free, skb->len);
 		lp->pending_tx_skb = NULL;
 		dev->stats.tx_errors++;
 		dev->stats.tx_dropped++;
@@ -561,13 +563,13 @@ static int smc911x_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 		 * the DMA IRQ starts it
 		 */
 		if (lp->txdma_active) {
-			DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, "%s: Tx DMA running, deferring packet\n", dev->name);
+			DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, dev, "Tx DMA running, deferring packet\n");
 			lp->pending_tx_skb = skb;
 			netif_stop_queue(dev);
 			spin_unlock_irqrestore(&lp->lock, flags);
 			return NETDEV_TX_OK;
 		} else {
-			DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, "%s: Activating Tx DMA\n", dev->name);
+			DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, dev, "Activating Tx DMA\n");
 			lp->txdma_active = 1;
 		}
 	}
@@ -589,20 +591,19 @@ static void smc911x_tx(struct net_device *dev)
 	struct smc911x_local *lp = netdev_priv(dev);
 	unsigned int tx_status;
 
-	DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, "%s: --> %s\n",
-		dev->name, __func__);
+	DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, dev, "--> %s\n",
+	    __func__);
 
 	/* Collect the TX status */
 	while (((SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TSUSED_) >> 16) != 0) {
-		DBG(SMC_DEBUG_TX, "%s: Tx stat FIFO used 0x%04x\n",
-			dev->name,
-			(SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TSUSED_) >> 16);
+		DBG(SMC_DEBUG_TX, dev, "Tx stat FIFO used 0x%04x\n",
+		    (SMC_GET_TX_FIFO_INF(lp) & TX_FIFO_INF_TSUSED_) >> 16);
 		tx_status = SMC_GET_TX_STS_FIFO(lp);
 		dev->stats.tx_packets++;
 		dev->stats.tx_bytes+=tx_status>>16;
-		DBG(SMC_DEBUG_TX, "%s: Tx FIFO tag 0x%04x status 0x%04x\n",
-			dev->name, (tx_status & 0xffff0000) >> 16,
-			tx_status & 0x0000ffff);
+		DBG(SMC_DEBUG_TX, dev, "Tx FIFO tag 0x%04x status 0x%04x\n",
+		    (tx_status & 0xffff0000) >> 16,
+		    tx_status & 0x0000ffff);
 		/* count Tx errors, but ignore lost carrier errors when in
 		 * full-duplex mode */
 		if ((tx_status & TX_STS_ES_) && !(lp->ctl_rfduplx &&
@@ -640,8 +641,8 @@ static int smc911x_phy_read(struct net_device *dev, int phyaddr, int phyreg)
 
 	SMC_GET_MII(lp, phyreg, phyaddr, phydata);
 
-	DBG(SMC_DEBUG_MISC, "%s: phyaddr=0x%x, phyreg=0x%02x, phydata=0x%04x\n",
-		__func__, phyaddr, phyreg, phydata);
+	DBG(SMC_DEBUG_MISC, dev, "%s: phyaddr=0x%x, phyreg=0x%02x, phydata=0x%04x\n",
+	    __func__, phyaddr, phyreg, phydata);
 	return phydata;
 }
 
@@ -654,8 +655,8 @@ static void smc911x_phy_write(struct net_device *dev, int phyaddr, int phyreg,
 {
 	struct smc911x_local *lp = netdev_priv(dev);
 
-	DBG(SMC_DEBUG_MISC, "%s: phyaddr=0x%x, phyreg=0x%x, phydata=0x%x\n",
-		__func__, phyaddr, phyreg, phydata);
+	DBG(SMC_DEBUG_MISC, dev, "%s: phyaddr=0x%x, phyreg=0x%x, phydata=0x%x\n",
+	    __func__, phyaddr, phyreg, phydata);
 
 	SMC_SET_MII(lp, phyreg, phyaddr, phydata);
 }
@@ -670,7 +671,7 @@ static void smc911x_phy_detect(struct net_device *dev)
 	int phyaddr;
 	unsigned int cfg, id1, id2;
 
-	DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
+	DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
 
 	lp->phy_type = 0;
 
@@ -731,8 +732,8 @@ static void smc911x_phy_detect(struct net_device *dev)
 			lp->phy_type = id1 << 16 | id2;
 	}
 
-	DBG(SMC_DEBUG_MISC, "%s: phy_id1=0x%x, phy_id2=0x%x phyaddr=0x%d\n",
-		dev->name, id1, id2, lp->mii.phy_id);
+	DBG(SMC_DEBUG_MISC, dev, "phy_id1=0x%x, phy_id2=0x%x phyaddr=0x%d\n",
+	    id1, id2, lp->mii.phy_id);
 }
 
 /*
@@ -745,7 +746,7 @@ static int smc911x_phy_fixed(struct net_device *dev)
 	int phyaddr = lp->mii.phy_id;
 	int bmcr;
 
-	DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
+	DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
 
 	/* Enter Link Disable state */
 	SMC_GET_PHY_BMCR(lp, phyaddr, bmcr);
@@ -792,7 +793,7 @@ static int smc911x_phy_reset(struct net_device *dev, int phy)
 	unsigned long flags;
 	unsigned int reg;
 
-	DBG(SMC_DEBUG_FUNC, "%s: --> %s()\n", dev->name, __func__);
+	DBG(SMC_DEBUG_FUNC, dev, "--> %s()\n", __func__);
 
 	spin_lock_irqsave(&lp->lock, flags);
 	reg = SMC_GET_PMT_CTRL(lp);
@@ -851,18 +852,18 @@ static void smc911x_phy_check_media(struct net_device *dev, int init)
 	int phyaddr = lp->mii.phy_id;
 	unsigned int bmcr, cr;
 
-	DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
+	DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
 
 	if (mii_check_media(&lp->mii, netif_msg_link(lp), init)) {
 		/* duplex state has changed */
 		SMC_GET_PHY_BMCR(lp, phyaddr, bmcr);
 		SMC_GET_MAC_CR(lp, cr);
 		if (lp->mii.full_duplex) {
-			DBG(SMC_DEBUG_MISC, "%s: Configuring for full-duplex mode\n", dev->name);
+			DBG(SMC_DEBUG_MISC, dev, "Configuring for full-duplex mode\n");
 			bmcr |= BMCR_FULLDPLX;
 			cr |= MAC_CR_RCVOWN_;
 		} else {
-			DBG(SMC_DEBUG_MISC, "%s: Configuring for half-duplex mode\n", dev->name);
+			DBG(SMC_DEBUG_MISC, dev, "Configuring for half-duplex mode\n");
 			bmcr &= ~BMCR_FULLDPLX;
 			cr &= ~MAC_CR_RCVOWN_;
 		}
@@ -891,7 +892,7 @@ static void smc911x_phy_configure(struct work_struct *work)
 	int status;
 	unsigned long flags;
 
-	DBG(SMC_DEBUG_FUNC, "%s: --> %s()\n", dev->name, __func__);
+	DBG(SMC_DEBUG_FUNC, dev, "--> %s()\n", __func__);
 
 	/*
 	 * We should not be called if phy_type is zero.
@@ -900,7 +901,7 @@ static void smc911x_phy_configure(struct work_struct *work)
 		return;
 
 	if (smc911x_phy_reset(dev, phyaddr)) {
-		printk("%s: PHY reset timed out\n", dev->name);
+		netdev_info(dev, "PHY reset timed out\n");
 		return;
 	}
 	spin_lock_irqsave(&lp->lock, flags);
@@ -922,7 +923,7 @@ static void smc911x_phy_configure(struct work_struct *work)
 	/* Copy our capabilities from MII_BMSR to MII_ADVERTISE */
 	SMC_GET_PHY_BMSR(lp, phyaddr, my_phy_caps);
 	if (!(my_phy_caps & BMSR_ANEGCAPABLE)) {
-		printk(KERN_INFO "Auto negotiation NOT supported\n");
+		netdev_info(dev, "Auto negotiation NOT supported\n");
 		smc911x_phy_fixed(dev);
 		goto smc911x_phy_configure_exit;
 	}
@@ -960,8 +961,8 @@ static void smc911x_phy_configure(struct work_struct *work)
 	udelay(10);
 	SMC_GET_PHY_MII_ADV(lp, phyaddr, status);
 
-	DBG(SMC_DEBUG_MISC, "%s: phy caps=0x%04x\n", dev->name, my_phy_caps);
-	DBG(SMC_DEBUG_MISC, "%s: phy advertised caps=0x%04x\n", dev->name, my_ad_caps);
+	DBG(SMC_DEBUG_MISC, dev, "phy caps=0x%04x\n", my_phy_caps);
+	DBG(SMC_DEBUG_MISC, dev, "phy advertised caps=0x%04x\n", my_ad_caps);
 
 	/* Restart auto-negotiation process in order to advertise my caps */
 	SMC_SET_PHY_BMCR(lp, phyaddr, BMCR_ANENABLE | BMCR_ANRESTART);
@@ -984,7 +985,7 @@ static void smc911x_phy_interrupt(struct net_device *dev)
 	int phyaddr = lp->mii.phy_id;
 	int status;
 
-	DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
+	DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
 
 	if (lp->phy_type == 0)
 		return;
@@ -992,10 +993,10 @@ static void smc911x_phy_interrupt(struct net_device *dev)
 	smc911x_phy_check_media(dev, 0);
 	/* read to clear status bits */
 	SMC_GET_PHY_INT_SRC(lp, phyaddr,status);
-	DBG(SMC_DEBUG_MISC, "%s: PHY interrupt status 0x%04x\n",
-		dev->name, status & 0xffff);
-	DBG(SMC_DEBUG_MISC, "%s: AFC_CFG 0x%08x\n",
-		dev->name, SMC_GET_AFC_CFG(lp));
+	DBG(SMC_DEBUG_MISC, dev, "PHY interrupt status 0x%04x\n",
+	    status & 0xffff);
+	DBG(SMC_DEBUG_MISC, dev, "AFC_CFG 0x%08x\n",
+	    SMC_GET_AFC_CFG(lp));
 }
 
 /*--- END PHY CONTROL AND CONFIGURATION-------------------------------------*/
@@ -1012,7 +1013,7 @@ static irqreturn_t smc911x_interrupt(int irq, void *dev_id)
 	unsigned int rx_overrun=0, cr, pkts;
 	unsigned long flags;
 
-	DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
+	DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
 
 	spin_lock_irqsave(&lp->lock, flags);
 
@@ -1033,8 +1034,8 @@ static irqreturn_t smc911x_interrupt(int irq, void *dev_id)
 	do {
 		status = SMC_GET_INT(lp);
 
-		DBG(SMC_DEBUG_MISC, "%s: INT 0x%08x MASK 0x%08x OUTSIDE MASK 0x%08x\n",
-			dev->name, status, mask, status & ~mask);
+		DBG(SMC_DEBUG_MISC, dev, "INT 0x%08x MASK 0x%08x OUTSIDE MASK 0x%08x\n",
+		    status, mask, status & ~mask);
 
 		status &= mask;
 		if (!status)
@@ -1066,7 +1067,7 @@ static irqreturn_t smc911x_interrupt(int irq, void *dev_id)
 				SMC_GET_MAC_CR(lp, cr);
 				cr &= ~MAC_CR_RXEN_;
 				SMC_SET_MAC_CR(lp, cr);
-				DBG(SMC_DEBUG_RX, "%s: RX overrun\n", dev->name);
+				DBG(SMC_DEBUG_RX, dev, "RX overrun\n");
 				dev->stats.rx_errors++;
 				dev->stats.rx_fifo_errors++;
 			}
@@ -1078,7 +1079,7 @@ static irqreturn_t smc911x_interrupt(int irq, void *dev_id)
 				cr &= ~MAC_CR_RXEN_;
 				SMC_SET_MAC_CR(lp, cr);
 				rx_overrun=1;
-				DBG(SMC_DEBUG_RX, "%s: RX overrun\n", dev->name);
+				DBG(SMC_DEBUG_RX, dev, "RX overrun\n");
 				dev->stats.rx_errors++;
 				dev->stats.rx_fifo_errors++;
 			}
@@ -1087,23 +1088,23 @@ static irqreturn_t smc911x_interrupt(int irq, void *dev_id)
 		/* Handle receive condition */
 		if ((status & INT_STS_RSFL_) || rx_overrun) {
 			unsigned int fifo;
-			DBG(SMC_DEBUG_RX, "%s: RX irq\n", dev->name);
+			DBG(SMC_DEBUG_RX, dev, "RX irq\n");
 			fifo = SMC_GET_RX_FIFO_INF(lp);
 			pkts = (fifo & RX_FIFO_INF_RXSUSED_) >> 16;
-			DBG(SMC_DEBUG_RX, "%s: Rx FIFO pkts %d, bytes %d\n",
-				dev->name, pkts, fifo & 0xFFFF );
+			DBG(SMC_DEBUG_RX, dev, "Rx FIFO pkts %d, bytes %d\n",
+			    pkts, fifo & 0xFFFF);
 			if (pkts != 0) {
 #ifdef SMC_USE_DMA
 				unsigned int fifo;
 				if (lp->rxdma_active){
-					DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA,
-						"%s: RX DMA active\n", dev->name);
+					DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA, dev,
+					    "RX DMA active\n");
 					/* The DMA is already running so up the IRQ threshold */
 					fifo = SMC_GET_FIFO_INT(lp) & ~0xFF;
 					fifo |= pkts & 0xFF;
-					DBG(SMC_DEBUG_RX,
-						"%s: Setting RX stat FIFO threshold to %d\n",
-						dev->name, fifo & 0xff);
+					DBG(SMC_DEBUG_RX, dev,
+					    "Setting RX stat FIFO threshold to %d\n",
+					    fifo & 0xff);
 					SMC_SET_FIFO_INT(lp, fifo);
 				} else
 #endif
@@ -1113,7 +1114,7 @@ static irqreturn_t smc911x_interrupt(int irq, void *dev_id)
 		}
 		/* Handle transmit FIFO available */
 		if (status & INT_STS_TDFA_) {
-			DBG(SMC_DEBUG_TX, "%s: TX data FIFO space available irq\n", dev->name);
+			DBG(SMC_DEBUG_TX, dev, "TX data FIFO space available irq\n");
 			SMC_SET_FIFO_TDA(lp, 0xFF);
 			lp->tx_throttle = 0;
 #ifdef SMC_USE_DMA
@@ -1125,9 +1126,9 @@ static irqreturn_t smc911x_interrupt(int irq, void *dev_id)
 		/* Handle transmit done condition */
 #if 1
 		if (status & (INT_STS_TSFL_ | INT_STS_GPT_INT_)) {
-			DBG(SMC_DEBUG_TX | SMC_DEBUG_MISC,
-				"%s: Tx stat FIFO limit (%d) /GPT irq\n",
-				dev->name, (SMC_GET_FIFO_INT(lp) & 0x00ff0000) >> 16);
+			DBG(SMC_DEBUG_TX | SMC_DEBUG_MISC, dev,
+			    "Tx stat FIFO limit (%d) /GPT irq\n",
+			    (SMC_GET_FIFO_INT(lp) & 0x00ff0000) >> 16);
 			smc911x_tx(dev);
 			SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
 			SMC_ACK_INT(lp, INT_STS_TSFL_);
@@ -1135,23 +1136,20 @@ static irqreturn_t smc911x_interrupt(int irq, void *dev_id)
 		}
 #else
 		if (status & INT_STS_TSFL_) {
-			DBG(SMC_DEBUG_TX, "%s: TX status FIFO limit (%d) irq\n", dev->name, );
+			DBG(SMC_DEBUG_TX, dev, "TX status FIFO limit (%d) irq\n", ?);
 			smc911x_tx(dev);
 			SMC_ACK_INT(lp, INT_STS_TSFL_);
 		}
 
 		if (status & INT_STS_GPT_INT_) {
-			DBG(SMC_DEBUG_RX, "%s: IRQ_CFG 0x%08x FIFO_INT 0x%08x RX_CFG 0x%08x\n",
-				dev->name,
-				SMC_GET_IRQ_CFG(lp),
-				SMC_GET_FIFO_INT(lp),
-				SMC_GET_RX_CFG(lp));
-			DBG(SMC_DEBUG_RX, "%s: Rx Stat FIFO Used 0x%02x "
-				"Data FIFO Used 0x%04x Stat FIFO 0x%08x\n",
-				dev->name,
-				(SMC_GET_RX_FIFO_INF(lp) & 0x00ff0000) >> 16,
-				SMC_GET_RX_FIFO_INF(lp) & 0xffff,
-				SMC_GET_RX_STS_FIFO_PEEK(lp));
+			DBG(SMC_DEBUG_RX, dev, "IRQ_CFG 0x%08x FIFO_INT 0x%08x RX_CFG 0x%08x\n",
+			    SMC_GET_IRQ_CFG(lp),
+			    SMC_GET_FIFO_INT(lp),
+			    SMC_GET_RX_CFG(lp));
+			DBG(SMC_DEBUG_RX, dev, "Rx Stat FIFO Used 0x%02x Data FIFO Used 0x%04x Stat FIFO 0x%08x\n",
+			    (SMC_GET_RX_FIFO_INF(lp) & 0x00ff0000) >> 16,
+			    SMC_GET_RX_FIFO_INF(lp) & 0xffff,
+			    SMC_GET_RX_STS_FIFO_PEEK(lp));
 			SMC_SET_GPT_CFG(lp, GPT_CFG_TIMER_EN_ | 10000);
 			SMC_ACK_INT(lp, INT_STS_GPT_INT_);
 		}
@@ -1159,7 +1157,7 @@ static irqreturn_t smc911x_interrupt(int irq, void *dev_id)
 
 		/* Handle PHY interrupt condition */
 		if (status & INT_STS_PHY_INT_) {
-			DBG(SMC_DEBUG_MISC, "%s: PHY irq\n", dev->name);
+			DBG(SMC_DEBUG_MISC, dev, "PHY irq\n");
 			smc911x_phy_interrupt(dev);
 			SMC_ACK_INT(lp, INT_STS_PHY_INT_);
 		}
@@ -1168,8 +1166,8 @@ static irqreturn_t smc911x_interrupt(int irq, void *dev_id)
 	/* restore mask state */
 	SMC_SET_INT_EN(lp, mask);
 
-	DBG(SMC_DEBUG_MISC, "%s: Interrupt done (%d loops)\n",
-		dev->name, 8-timeout);
+	DBG(SMC_DEBUG_MISC, dev, "Interrupt done (%d loops)\n",
+	    8-timeout);
 
 	spin_unlock_irqrestore(&lp->lock, flags);
 
@@ -1185,9 +1183,9 @@ smc911x_tx_dma_irq(int dma, void *data)
 	struct sk_buff *skb = lp->current_tx_skb;
 	unsigned long flags;
 
-	DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
+	DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
 
-	DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, "%s: TX DMA irq handler\n", dev->name);
+	DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, dev, "TX DMA irq handler\n");
 	/* Clear the DMA interrupt sources */
 	SMC_DMA_ACK_IRQ(dev, dma);
 	BUG_ON(skb == NULL);
@@ -1198,8 +1196,8 @@ smc911x_tx_dma_irq(int dma, void *data)
 	if (lp->pending_tx_skb != NULL)
 		smc911x_hardware_send_pkt(dev);
 	else {
-		DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA,
-			"%s: No pending Tx packets. DMA disabled\n", dev->name);
+		DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, dev,
+		    "No pending Tx packets. DMA disabled\n");
 		spin_lock_irqsave(&lp->lock, flags);
 		lp->txdma_active = 0;
 		if (!lp->tx_throttle) {
@@ -1208,8 +1206,8 @@ smc911x_tx_dma_irq(int dma, void *data)
 		spin_unlock_irqrestore(&lp->lock, flags);
 	}
 
-	DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA,
-		"%s: TX DMA irq completed\n", dev->name);
+	DBG(SMC_DEBUG_TX | SMC_DEBUG_DMA, dev,
+	    "TX DMA irq completed\n");
 }
 static void
 smc911x_rx_dma_irq(int dma, void *data)
@@ -1221,8 +1219,8 @@ smc911x_rx_dma_irq(int dma, void *data)
 	unsigned long flags;
 	unsigned int pkts;
 
-	DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
-	DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA, "%s: RX DMA irq handler\n", dev->name);
+	DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
+	DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA, dev, "RX DMA irq handler\n");
 	/* Clear the DMA interrupt sources */
 	SMC_DMA_ACK_IRQ(dev, dma);
 	dma_unmap_single(NULL, rx_dmabuf, rx_dmalen, DMA_FROM_DEVICE);
@@ -1242,9 +1240,9 @@ smc911x_rx_dma_irq(int dma, void *data)
 		lp->rxdma_active = 0;
 	}
 	spin_unlock_irqrestore(&lp->lock, flags);
-	DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA,
-		"%s: RX DMA irq completed. DMA RX FIFO PKTS %d\n",
-		dev->name, pkts);
+	DBG(SMC_DEBUG_RX | SMC_DEBUG_DMA, dev,
+	    "RX DMA irq completed. DMA RX FIFO PKTS %d\n",
+	    pkts);
 }
 #endif	 /* SMC_USE_DMA */
 
@@ -1268,14 +1266,14 @@ static void smc911x_timeout(struct net_device *dev)
 	int status, mask;
 	unsigned long flags;
 
-	DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
+	DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
 
 	spin_lock_irqsave(&lp->lock, flags);
 	status = SMC_GET_INT(lp);
 	mask = SMC_GET_INT_EN(lp);
 	spin_unlock_irqrestore(&lp->lock, flags);
-	DBG(SMC_DEBUG_MISC, "%s: INT 0x%02x MASK 0x%02x\n",
-		dev->name, status, mask);
+	DBG(SMC_DEBUG_MISC, dev, "INT 0x%02x MASK 0x%02x\n",
+	    status, mask);
 
 	/* Dump the current TX FIFO contents and restart */
 	mask = SMC_GET_TX_CFG(lp);
@@ -1306,7 +1304,7 @@ static void smc911x_set_multicast_list(struct net_device *dev)
 	unsigned int mcr, update_multicast = 0;
 	unsigned long flags;
 
-	DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
+	DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
 
 	spin_lock_irqsave(&lp->lock, flags);
 	SMC_GET_MAC_CR(lp, mcr);
@@ -1314,7 +1312,7 @@ static void smc911x_set_multicast_list(struct net_device *dev)
 
 	if (dev->flags & IFF_PROMISC) {
 
-		DBG(SMC_DEBUG_MISC, "%s: RCR_PRMS\n", dev->name);
+		DBG(SMC_DEBUG_MISC, dev, "RCR_PRMS\n");
 		mcr |= MAC_CR_PRMS_;
 	}
 	/*
@@ -1323,7 +1321,7 @@ static void smc911x_set_multicast_list(struct net_device *dev)
 	 * checked before the table is
 	 */
 	else if (dev->flags & IFF_ALLMULTI || netdev_mc_count(dev) > 16) {
-		DBG(SMC_DEBUG_MISC, "%s: RCR_ALMUL\n", dev->name);
+		DBG(SMC_DEBUG_MISC, dev, "RCR_ALMUL\n");
 		mcr |= MAC_CR_MCPAS_;
 	}
 
@@ -1363,8 +1361,7 @@ static void smc911x_set_multicast_list(struct net_device *dev)
 		/* now, the table can be loaded into the chipset */
 		update_multicast = 1;
 	} else	 {
-		DBG(SMC_DEBUG_MISC, "%s: ~(MAC_CR_PRMS_|MAC_CR_MCPAS_)\n",
-			dev->name);
+		DBG(SMC_DEBUG_MISC, dev, "~(MAC_CR_PRMS_|MAC_CR_MCPAS_)\n");
 		mcr &= ~(MAC_CR_PRMS_ | MAC_CR_MCPAS_);
 
 		/*
@@ -1378,9 +1375,9 @@ static void smc911x_set_multicast_list(struct net_device *dev)
 	spin_lock_irqsave(&lp->lock, flags);
 	SMC_SET_MAC_CR(lp, mcr);
 	if (update_multicast) {
-		DBG(SMC_DEBUG_MISC,
-			"%s: update mcast hash table 0x%08x 0x%08x\n",
-			dev->name, multicast_table[0], multicast_table[1]);
+		DBG(SMC_DEBUG_MISC, dev,
+		    "update mcast hash table 0x%08x 0x%08x\n",
+		    multicast_table[0], multicast_table[1]);
 		SMC_SET_HASHL(lp, multicast_table[0]);
 		SMC_SET_HASHH(lp, multicast_table[1]);
 	}
@@ -1398,7 +1395,7 @@ smc911x_open(struct net_device *dev)
 {
 	struct smc911x_local *lp = netdev_priv(dev);
 
-	DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
+	DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
 
 	/* reset the hardware */
 	smc911x_reset(dev);
@@ -1425,7 +1422,7 @@ static int smc911x_close(struct net_device *dev)
 {
 	struct smc911x_local *lp = netdev_priv(dev);
 
-	DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
+	DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
 
 	netif_stop_queue(dev);
 	netif_carrier_off(dev);
@@ -1459,7 +1456,7 @@ smc911x_ethtool_getsettings(struct net_device *dev, struct ethtool_cmd *cmd)
 	int ret, status;
 	unsigned long flags;
 
-	DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
+	DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
 	cmd->maxtxpkt = 1;
 	cmd->maxrxpkt = 1;
 
@@ -1597,16 +1594,16 @@ static int smc911x_ethtool_wait_eeprom_ready(struct net_device *dev)
 	e2p_cmd = SMC_GET_E2P_CMD(lp);
 	for(timeout=10;(e2p_cmd & E2P_CMD_EPC_BUSY_) && timeout; timeout--) {
 		if (e2p_cmd & E2P_CMD_EPC_TIMEOUT_) {
-			PRINTK("%s: %s timeout waiting for EEPROM to respond\n",
-				dev->name, __func__);
+			PRINTK(dev, "%s timeout waiting for EEPROM to respond\n",
+			       __func__);
 			return -EFAULT;
 		}
 		mdelay(1);
 		e2p_cmd = SMC_GET_E2P_CMD(lp);
 	}
 	if (timeout == 0) {
-		PRINTK("%s: %s timeout waiting for EEPROM CMD not busy\n",
-			dev->name, __func__);
+		PRINTK(dev, "%s timeout waiting for EEPROM CMD not busy\n",
+		       __func__);
 		return -ETIMEDOUT;
 	}
 	return 0;
@@ -1719,7 +1716,7 @@ static int smc911x_findirq(struct net_device *dev)
 	int timeout = 20;
 	unsigned long cookie;
 
-	DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
+	DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
 
 	cookie = probe_irq_on();
 
@@ -1799,13 +1796,14 @@ static int smc911x_probe(struct net_device *dev)
 	const char *version_string;
 	unsigned long irq_flags;
 
-	DBG(SMC_DEBUG_FUNC, "%s: --> %s\n", dev->name, __func__);
+	DBG(SMC_DEBUG_FUNC, dev, "--> %s\n", __func__);
 
 	/* First, see if the endian word is recognized */
 	val = SMC_GET_BYTE_TEST(lp);
-	DBG(SMC_DEBUG_MISC, "%s: endian probe returned 0x%04x\n", CARDNAME, val);
+	DBG(SMC_DEBUG_MISC, dev, "%s: endian probe returned 0x%04x\n",
+	    CARDNAME, val);
 	if (val != 0x87654321) {
-		printk(KERN_ERR "Invalid chip endian 0x%08x\n",val);
+		netdev_err(dev, "Invalid chip endian 0x%08x\n", val);
 		retval = -ENODEV;
 		goto err_out;
 	}
@@ -1816,26 +1814,29 @@ static int smc911x_probe(struct net_device *dev)
 	 * as future revisions could be added.
 	 */
 	chip_id = SMC_GET_PN(lp);
-	DBG(SMC_DEBUG_MISC, "%s: id probe returned 0x%04x\n", CARDNAME, chip_id);
+	DBG(SMC_DEBUG_MISC, dev, "%s: id probe returned 0x%04x\n",
+	    CARDNAME, chip_id);
 	for(i=0;chip_ids[i].id != 0; i++) {
 		if (chip_ids[i].id == chip_id) break;
 	}
 	if (!chip_ids[i].id) {
-		printk(KERN_ERR "Unknown chip ID %04x\n", chip_id);
+		netdev_err(dev, "Unknown chip ID %04x\n", chip_id);
 		retval = -ENODEV;
 		goto err_out;
 	}
 	version_string = chip_ids[i].name;
 
 	revision = SMC_GET_REV(lp);
-	DBG(SMC_DEBUG_MISC, "%s: revision = 0x%04x\n", CARDNAME, revision);
+	DBG(SMC_DEBUG_MISC, dev, "%s: revision = 0x%04x\n", CARDNAME, revision);
 
 	/* At this point I'll assume that the chip is an SMC911x. */
-	DBG(SMC_DEBUG_MISC, "%s: Found a %s\n", CARDNAME, chip_ids[i].name);
+	DBG(SMC_DEBUG_MISC, dev, "%s: Found a %s\n",
+	    CARDNAME, chip_ids[i].name);
 
 	/* Validate the TX FIFO size requested */
 	if ((tx_fifo_kb < 2) || (tx_fifo_kb > 14)) {
-		printk(KERN_ERR "Invalid TX FIFO size requested %d\n", tx_fifo_kb);
+		netdev_err(dev, "Invalid TX FIFO size requested %d\n",
+			   tx_fifo_kb);
 		retval = -EINVAL;
 		goto err_out;
 	}
@@ -1887,14 +1888,13 @@ static int smc911x_probe(struct net_device *dev)
 		case 14:/* 1920 Rx Data Fifo Size */
 			lp->afc_cfg=0x0006032F;break;
 		 default:
-			 PRINTK("%s: ERROR -- no AFC_CFG setting found",
-				dev->name);
+			 PRINTK(dev, "ERROR -- no AFC_CFG setting found");
 			 break;
 	}
 
-	DBG(SMC_DEBUG_MISC | SMC_DEBUG_TX | SMC_DEBUG_RX,
-		"%s: tx_fifo %d rx_fifo %d afc_cfg 0x%08x\n", CARDNAME,
-		lp->tx_fifo_size, lp->rx_fifo_size, lp->afc_cfg);
+	DBG(SMC_DEBUG_MISC | SMC_DEBUG_TX | SMC_DEBUG_RX, dev,
+	    "%s: tx_fifo %d rx_fifo %d afc_cfg 0x%08x\n", CARDNAME,
+	    lp->tx_fifo_size, lp->rx_fifo_size, lp->afc_cfg);
 
 	spin_lock_init(&lp->lock);
 
@@ -1924,8 +1924,7 @@ static int smc911x_probe(struct net_device *dev)
 		}
 	}
 	if (dev->irq == 0) {
-		printk("%s: Couldn't autodetect your IRQ. Use irq=xx.\n",
-			dev->name);
+		netdev_warn(dev, "Couldn't autodetect your IRQ. Use irq=xx.\n");
 		retval = -ENODEV;
 		goto err_out;
 	}
@@ -1980,33 +1979,32 @@ static int smc911x_probe(struct net_device *dev)
 	retval = register_netdev(dev);
 	if (retval == 0) {
 		/* now, print out the card info, in a short format.. */
-		printk("%s: %s (rev %d) at %#lx IRQ %d",
-			dev->name, version_string, lp->revision,
-			dev->base_addr, dev->irq);
+		netdev_info(dev, "%s (rev %d) at %#lx IRQ %d",
+			    version_string, lp->revision,
+			    dev->base_addr, dev->irq);
 
 #ifdef SMC_USE_DMA
 		if (lp->rxdma != -1)
-			printk(" RXDMA %d ", lp->rxdma);
+			pr_cont(" RXDMA %d", lp->rxdma);
 
 		if (lp->txdma != -1)
-			printk("TXDMA %d", lp->txdma);
+			pr_cont(" TXDMA %d", lp->txdma);
 #endif
-		printk("\n");
+		pr_cont("\n");
 		if (!is_valid_ether_addr(dev->dev_addr)) {
-			printk("%s: Invalid ethernet MAC address. Please "
-					"set using ifconfig\n", dev->name);
+			netdev_warn(dev, "Invalid ethernet MAC address. Please set using ifconfig\n");
 		} else {
 			/* Print the Ethernet address */
-			printk("%s: Ethernet addr: %pM\n",
-				dev->name, dev->dev_addr);
+			netdev_info(dev, "Ethernet addr: %pM\n",
+				    dev->dev_addr);
 		}
 
 		if (lp->phy_type == 0) {
-			PRINTK("%s: No PHY found\n", dev->name);
+			PRINTK(dev, "No PHY found\n");
 		} else if ((lp->phy_type & ~0xff) == LAN911X_INTERNAL_PHY_ID) {
-			PRINTK("%s: LAN911x Internal PHY\n", dev->name);
+			PRINTK(dev, "LAN911x Internal PHY\n");
 		} else {
-			PRINTK("%s: External PHY 0x%08x\n", dev->name, lp->phy_type);
+			PRINTK(dev, "External PHY 0x%08x\n", lp->phy_type);
 		}
 	}
 
@@ -2025,7 +2023,7 @@ err_out:
 }
 
 /*
- * smc911x_init(void)
+ * smc911x_drv_probe(void)
  *
  *	  Output:
  *	 0 --> there is a device
@@ -2039,6 +2037,7 @@ static int smc911x_drv_probe(struct platform_device *pdev)
 	void __iomem *addr;
 	int ret;
 
+	/* ndev is not valid yet, so avoid passing it in. */
 	DBG(SMC_DEBUG_FUNC, "--> %s\n",  __func__);
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res) {
@@ -2093,7 +2092,7 @@ release_both:
 release_1:
 		release_mem_region(res->start, SMC911X_IO_EXTENT);
 out:
-		printk("%s: not found (%d).\n", CARDNAME, ret);
+		pr_info("%s: not found (%d).\n", CARDNAME, ret);
 	}
 #ifdef SMC_USE_DMA
 	else {
@@ -2111,7 +2110,7 @@ static int smc911x_drv_remove(struct platform_device *pdev)
 	struct smc911x_local *lp = netdev_priv(ndev);
 	struct resource *res;
 
-	DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
+	DBG(SMC_DEBUG_FUNC, ndev, "--> %s\n", __func__);
 
 	unregister_netdev(ndev);
 
@@ -2140,7 +2139,7 @@ static int smc911x_drv_suspend(struct platform_device *dev, pm_message_t state)
 	struct net_device *ndev = platform_get_drvdata(dev);
 	struct smc911x_local *lp = netdev_priv(ndev);
 
-	DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
+	DBG(SMC_DEBUG_FUNC, ndev, "--> %s\n", __func__);
 	if (ndev) {
 		if (netif_running(ndev)) {
 			netif_device_detach(ndev);
@@ -2158,7 +2157,7 @@ static int smc911x_drv_resume(struct platform_device *dev)
 {
 	struct net_device *ndev = platform_get_drvdata(dev);
 
-	DBG(SMC_DEBUG_FUNC, "--> %s\n", __func__);
+	DBG(SMC_DEBUG_FUNC, ndev, "--> %s\n", __func__);
 	if (ndev) {
 		struct smc911x_local *lp = netdev_priv(ndev);
 
diff --git a/drivers/net/ethernet/smsc/smc911x.h b/drivers/net/ethernet/smsc/smc911x.h
index d51261ba4642..9965da39281b 100644
--- a/drivers/net/ethernet/smsc/smc911x.h
+++ b/drivers/net/ethernet/smsc/smc911x.h
@@ -227,7 +227,7 @@ static inline void SMC_outsl(struct smc911x_local *lp, int reg,
 #define SMC_DMA_ACK_IRQ(dev, dma)					\
 {									\
 	if (DCSR(dma) & DCSR_BUSERR) {					\
-		printk("%s: DMA %d bus error!\n", dev->name, dma);	\
+		netdev_err(dev, "DMA %d bus error!\n", dma);		\
 	}								\
 	DCSR(dma) = DCSR_STARTINTR|DCSR_ENDINTR|DCSR_BUSERR;		\
 }
-- 
cgit 


From b1a04a62f31713610e156a0b9e4c677234916c2a Mon Sep 17 00:00:00 2001
From: Ben Boeckel <mathstuf@gmail.com>
Date: Fri, 1 Nov 2013 08:53:33 -0400
Subject: smsc911x: replace printk with netdev_ calls

Signed-off-by: Ben Boeckel <mathstuf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/smsc/smsc911x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c
index 01f8459c3213..8564f23a6796 100644
--- a/drivers/net/ethernet/smsc/smsc911x.c
+++ b/drivers/net/ethernet/smsc/smsc911x.c
@@ -2167,7 +2167,7 @@ static int smsc911x_init(struct net_device *dev)
 		udelay(1000);
 
 	if (to == 0) {
-		pr_err("Device not READY in 100ms aborting\n");
+		netdev_err(dev, "Device not READY in 100ms aborting\n");
 		return -ENODEV;
 	}
 
-- 
cgit 


From 2ad02bdc885db5b23a9f67aa43e682b586fba9cd Mon Sep 17 00:00:00 2001
From: Ben Boeckel <mathstuf@gmail.com>
Date: Fri, 1 Nov 2013 08:53:34 -0400
Subject: smc9194: replace printk with netdev_ calls

Also snipes some whitespace errors.

Signed-off-by: Ben Boeckel <mathstuf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/smsc/smc9194.c | 52 ++++++++++++++++++-------------------
 1 file changed, 25 insertions(+), 27 deletions(-)

diff --git a/drivers/net/ethernet/smsc/smc9194.c b/drivers/net/ethernet/smsc/smc9194.c
index e85c2e7e8246..51aa9cf3a3e7 100644
--- a/drivers/net/ethernet/smsc/smc9194.c
+++ b/drivers/net/ethernet/smsc/smc9194.c
@@ -55,7 +55,7 @@
  ----------------------------------------------------------------------------*/
 
 static const char version[] =
-	"smc9194.c:v0.14 12/15/00 by Erik Stahlman (erik@vt.edu)\n";
+	"smc9194.c:v0.14 12/15/00 by Erik Stahlman (erik@vt.edu)";
 
 #include <linux/module.h>
 #include <linux/kernel.h>
@@ -612,7 +612,7 @@ static void smc_hardware_send_packet( struct net_device * dev )
 	packet_no = inb( ioaddr + PNR_ARR + 1 );
 	if ( packet_no & 0x80 ) {
 		/* or isn't there?  BAD CHIP! */
-		printk(KERN_DEBUG CARDNAME": Memory allocation failed.\n");
+		netdev_dbg(dev, CARDNAME": Memory allocation failed.\n");
 		dev_kfree_skb_any(skb);
 		lp->saved_skb = NULL;
 		netif_wake_queue(dev);
@@ -625,7 +625,7 @@ static void smc_hardware_send_packet( struct net_device * dev )
 	/* point to the beginning of the packet */
 	outw( PTR_AUTOINC , ioaddr + POINTER );
 
-   	PRINTK3((CARDNAME": Trying to xmit packet of length %x\n", length ));
+	PRINTK3((CARDNAME": Trying to xmit packet of length %x\n", length));
 #if SMC_DEBUG > 2
 	print_packet( buf, length );
 #endif
@@ -865,7 +865,6 @@ static const struct net_device_ops smc_netdev_ops = {
 static int __init smc_probe(struct net_device *dev, int ioaddr)
 {
 	int i, memory, retval;
-	static unsigned version_printed;
 	unsigned int bank;
 
 	const char *version_string;
@@ -937,8 +936,7 @@ static int __init smc_probe(struct net_device *dev, int ioaddr)
 	   It might be prudent to check a listing of MAC addresses
 	   against the hardware address, or do some other tests. */
 
-	if (version_printed++ == 0)
-		printk("%s", version);
+	pr_info_once("%s\n", version);
 
 	/* fill in some of the fields */
 	dev->base_addr = ioaddr;
@@ -1027,21 +1025,21 @@ static int __init smc_probe(struct net_device *dev, int ioaddr)
 
 	/* now, print out the card info, in a short format.. */
 
-	printk("%s: %s(r:%d) at %#3x IRQ:%d INTF:%s MEM:%db ", dev->name,
-		version_string, revision_register & 0xF, ioaddr, dev->irq,
-		if_string, memory );
+	netdev_info(dev, "%s(r:%d) at %#3x IRQ:%d INTF:%s MEM:%db ",
+		    version_string, revision_register & 0xF, ioaddr, dev->irq,
+		    if_string, memory);
 	/*
 	 . Print the Ethernet address
 	*/
-	printk("ADDR: %pM\n", dev->dev_addr);
+	netdev_info(dev, "ADDR: %pM\n", dev->dev_addr);
 
 	/* Grab the IRQ */
-      	retval = request_irq(dev->irq, smc_interrupt, 0, DRV_NAME, dev);
-      	if (retval) {
-		printk("%s: unable to get IRQ %d (irqval=%d).\n", DRV_NAME,
-			dev->irq, retval);
-  	  	goto err_out;
-      	}
+	retval = request_irq(dev->irq, smc_interrupt, 0, DRV_NAME, dev);
+	if (retval) {
+		netdev_warn(dev, "%s: unable to get IRQ %d (irqval=%d).\n",
+			    DRV_NAME, dev->irq, retval);
+		goto err_out;
+	}
 
 	dev->netdev_ops			= &smc_netdev_ops;
 	dev->watchdog_timeo		= HZ/20;
@@ -1061,30 +1059,32 @@ static void print_packet( byte * buf, int length )
 	int remainder;
 	int lines;
 
-	printk("Packet of length %d\n", length);
+	pr_dbg("Packet of length %d\n", length);
 	lines = length / 16;
 	remainder = length % 16;
 
 	for ( i = 0; i < lines ; i ++ ) {
 		int cur;
 
+		printk(KERN_DEBUG);
 		for ( cur = 0; cur < 8; cur ++ ) {
 			byte a, b;
 
 			a = *(buf ++ );
 			b = *(buf ++ );
-			printk("%02x%02x ", a, b );
+			pr_cont("%02x%02x ", a, b);
 		}
-		printk("\n");
+		pr_cont("\n");
 	}
+	printk(KERN_DEBUG);
 	for ( i = 0; i < remainder/2 ; i++ ) {
 		byte a, b;
 
 		a = *(buf ++ );
 		b = *(buf ++ );
-		printk("%02x%02x ", a, b );
+		pr_cont("%02x%02x ", a, b);
 	}
-	printk("\n");
+	pr_cont("\n");
 #endif
 }
 #endif
@@ -1151,9 +1151,8 @@ static void smc_timeout(struct net_device *dev)
 {
 	/* If we get here, some higher level has decided we are broken.
 	   There should really be a "kick me" function call instead. */
-	printk(KERN_WARNING CARDNAME": transmit timed out, %s?\n",
-		tx_done(dev) ? "IRQ conflict" :
-		"network cable problem");
+	netdev_warn(dev, CARDNAME": transmit timed out, %s?\n",
+		    tx_done(dev) ? "IRQ conflict" : "network cable problem");
 	/* "kick" the adaptor */
 	smc_reset( dev->base_addr );
 	smc_enable( dev->base_addr );
@@ -1323,8 +1322,7 @@ static void smc_tx( struct net_device * dev )
 	dev->stats.tx_errors++;
 	if ( tx_status & TS_LOSTCAR ) dev->stats.tx_carrier_errors++;
 	if ( tx_status & TS_LATCOL  ) {
-		printk(KERN_DEBUG CARDNAME
-			": Late collision occurred on last xmit.\n");
+		netdev_dbg(dev, CARDNAME": Late collision occurred on last xmit.\n");
 		dev->stats.tx_window_errors++;
 	}
 #if 0
@@ -1332,7 +1330,7 @@ static void smc_tx( struct net_device * dev )
 #endif
 
 	if ( tx_status & TS_SUCCESS ) {
-		printk(CARDNAME": Successful packet caused interrupt\n");
+		netdev_info(dev, CARDNAME": Successful packet caused interrupt\n");
 	}
 	/* re-enable transmit */
 	SMC_SELECT_BANK( 0 );
-- 
cgit 


From c501b1f57b0cbd24908fced50170f0818362fdac Mon Sep 17 00:00:00 2001
From: Ben Boeckel <mathstuf@gmail.com>
Date: Fri, 1 Nov 2013 08:53:35 -0400
Subject: smc91c92_cs: replace printk with netdev_ calls

Also snipes some trailing whitespace.

Signed-off-by: Ben Boeckel <mathstuf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/smsc/smc91c92_cs.c | 43 ++++++++++++++++-----------------
 1 file changed, 21 insertions(+), 22 deletions(-)

diff --git a/drivers/net/ethernet/smsc/smc91c92_cs.c b/drivers/net/ethernet/smsc/smc91c92_cs.c
index 656d2e2ebfc9..8ef70d9c20c1 100644
--- a/drivers/net/ethernet/smsc/smc91c92_cs.c
+++ b/drivers/net/ethernet/smsc/smc91c92_cs.c
@@ -740,7 +740,7 @@ static int smc91c92_resume(struct pcmcia_device *link)
 	     (smc->cardid == PRODID_PSION_NET100))) {
 		i = osi_load_firmware(link);
 		if (i) {
-			pr_err("smc91c92_cs: Failed to load firmware\n");
+			netdev_err(dev, "Failed to load firmware\n");
 			return i;
 		}
 	}
@@ -793,7 +793,7 @@ static int check_sig(struct pcmcia_device *link)
     }
 
     if (width) {
-	    pr_info("using 8-bit IO window\n");
+	    netdev_info(dev, "using 8-bit IO window\n");
 
 	    smc91c92_suspend(link);
 	    pcmcia_fixup_iowidth(link);
@@ -1036,7 +1036,7 @@ static void smc_dump(struct net_device *dev)
     save = inw(ioaddr + BANK_SELECT);
     for (w = 0; w < 4; w++) {
 	SMC_SELECT_BANK(w);
-	netdev_printk(KERN_DEBUG, dev, "bank %d: ", w);
+	netdev_dbg(dev, "bank %d: ", w);
 	for (i = 0; i < 14; i += 2)
 	    pr_cont(" %04x", inw(ioaddr + i));
 	pr_cont("\n");
@@ -1213,8 +1213,7 @@ static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
     if (smc->saved_skb) {
 	/* THIS SHOULD NEVER HAPPEN. */
 	dev->stats.tx_aborted_errors++;
-	netdev_printk(KERN_DEBUG, dev,
-		      "Internal error -- sent packet while busy\n");
+	netdev_dbg(dev, "Internal error -- sent packet while busy\n");
 	return NETDEV_TX_BUSY;
     }
     smc->saved_skb = skb;
@@ -1254,7 +1253,7 @@ static netdev_tx_t smc_start_xmit(struct sk_buff *skb,
     }
 
     /* Otherwise defer until the Tx-space-allocated interrupt. */
-    pr_debug("%s: memory allocation deferred.\n", dev->name);
+    netdev_dbg(dev, "memory allocation deferred.\n");
     outw((IM_ALLOC_INT << 8) | (ir & 0xff00), ioaddr + INTERRUPT);
     spin_unlock_irqrestore(&smc->lock, flags);
 
@@ -1317,8 +1316,8 @@ static void smc_eph_irq(struct net_device *dev)
 
     SMC_SELECT_BANK(0);
     ephs = inw(ioaddr + EPH);
-    pr_debug("%s: Ethernet protocol handler interrupt, status"
-	  " %4.4x.\n", dev->name, ephs);
+    netdev_dbg(dev, "Ethernet protocol handler interrupt, status %4.4x.\n",
+	       ephs);
     /* Could be a counter roll-over warning: update stats. */
     card_stats = inw(ioaddr + COUNTER);
     /* single collisions */
@@ -1357,8 +1356,8 @@ static irqreturn_t smc_interrupt(int irq, void *dev_id)
 
     ioaddr = dev->base_addr;
 
-    pr_debug("%s: SMC91c92 interrupt %d at %#x.\n", dev->name,
-	  irq, ioaddr);
+    netdev_dbg(dev, "SMC91c92 interrupt %d at %#x.\n",
+	       irq, ioaddr);
 
     spin_lock(&smc->lock);
     smc->watchdog = 0;
@@ -1366,8 +1365,8 @@ static irqreturn_t smc_interrupt(int irq, void *dev_id)
     if ((saved_bank & 0xff00) != 0x3300) {
 	/* The device does not exist -- the card could be off-line, or
 	   maybe it has been ejected. */
-	pr_debug("%s: SMC91c92 interrupt %d for non-existent"
-	      "/ejected device.\n", dev->name, irq);
+	netdev_dbg(dev, "SMC91c92 interrupt %d for non-existent/ejected device.\n",
+		   irq);
 	handled = 0;
 	goto irq_done;
     }
@@ -1380,8 +1379,8 @@ static irqreturn_t smc_interrupt(int irq, void *dev_id)
 
     do { /* read the status flag, and mask it */
 	status = inw(ioaddr + INTERRUPT) & 0xff;
-	pr_debug("%s: Status is %#2.2x (mask %#2.2x).\n", dev->name,
-	      status, mask);
+	netdev_dbg(dev, "Status is %#2.2x (mask %#2.2x).\n",
+		   status, mask);
 	if ((status & mask) == 0) {
 	    if (bogus_cnt == INTR_WORK)
 		handled = 0;
@@ -1425,15 +1424,15 @@ static irqreturn_t smc_interrupt(int irq, void *dev_id)
 	    smc_eph_irq(dev);
     } while (--bogus_cnt);
 
-    pr_debug("  Restoring saved registers mask %2.2x bank %4.4x"
-	  " pointer %4.4x.\n", mask, saved_bank, saved_pointer);
+    netdev_dbg(dev, "  Restoring saved registers mask %2.2x bank %4.4x pointer %4.4x.\n",
+	       mask, saved_bank, saved_pointer);
 
     /* restore state register */
     outw((mask<<8), ioaddr + INTERRUPT);
     outw(saved_pointer, ioaddr + POINTER);
     SMC_SELECT_BANK(saved_bank);
 
-    pr_debug("%s: Exiting interrupt IRQ%d.\n", dev->name, irq);
+    netdev_dbg(dev, "Exiting interrupt IRQ%d.\n", irq);
 
 irq_done:
 
@@ -1491,10 +1490,10 @@ static void smc_rx(struct net_device *dev)
     rx_status = inw(ioaddr + DATA_1);
     packet_length = inw(ioaddr + DATA_1) & 0x07ff;
 
-    pr_debug("%s: Receive status %4.4x length %d.\n",
-	  dev->name, rx_status, packet_length);
+    netdev_dbg(dev, "Receive status %4.4x length %d.\n",
+	       rx_status, packet_length);
 
-    if (!(rx_status & RS_ERRORS)) {		
+    if (!(rx_status & RS_ERRORS)) {
 	/* do stuff to make a new packet */
 	struct sk_buff *skb;
 	
@@ -1502,7 +1501,7 @@ static void smc_rx(struct net_device *dev)
 	skb = netdev_alloc_skb(dev, packet_length+2);
 	
 	if (skb == NULL) {
-	    pr_debug("%s: Low memory, packet dropped.\n", dev->name);
+	    netdev_dbg(dev, "Low memory, packet dropped.\n");
 	    dev->stats.rx_dropped++;
 	    outw(MC_RELEASE, ioaddr + MMU_CMD);
 	    return;
@@ -1643,7 +1642,7 @@ static void smc_reset(struct net_device *dev)
     struct smc_private *smc = netdev_priv(dev);
     int i;
 
-    pr_debug("%s: smc91c92 reset called.\n", dev->name);
+    netdev_dbg(dev, "smc91c92 reset called.\n");
 
     /* The first interaction must be a write to bring the chip out
        of sleep mode. */
-- 
cgit 


From 4800599397e2610d4b17a55ef04a16ff3523263d Mon Sep 17 00:00:00 2001
From: Ben Boeckel <mathstuf@gmail.com>
Date: Fri, 1 Nov 2013 08:53:36 -0400
Subject: smsc9420: replace printk with netdev_ calls

Signed-off-by: Ben Boeckel <mathstuf@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/smsc/smsc9420.c | 26 +++++++++++++-------------
 1 file changed, 13 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/smsc/smsc9420.c b/drivers/net/ethernet/smsc/smsc9420.c
index e55e3365a306..059bcafc5e62 100644
--- a/drivers/net/ethernet/smsc/smsc9420.c
+++ b/drivers/net/ethernet/smsc/smsc9420.c
@@ -99,17 +99,17 @@ MODULE_PARM_DESC(debug, "debug level");
 
 #define smsc_dbg(TYPE, f, a...) \
 do {	if ((pd)->msg_enable & NETIF_MSG_##TYPE) \
-		printk(KERN_DEBUG PFX f "\n", ## a); \
+		netdev_dbg((pd)->dev, PFX f "\n", ## a); \
 } while (0)
 
 #define smsc_info(TYPE, f, a...) \
 do {	if ((pd)->msg_enable & NETIF_MSG_##TYPE) \
-		printk(KERN_INFO PFX f "\n", ## a); \
+		netdev_info((pd)->dev, PFX f "\n", ## a); \
 } while (0)
 
 #define smsc_warn(TYPE, f, a...) \
 do {	if ((pd)->msg_enable & NETIF_MSG_##TYPE) \
-		printk(KERN_WARNING PFX f "\n", ## a); \
+		netdev_warn((pd)->dev, PFX f "\n", ## a); \
 } while (0)
 
 static inline u32 smsc9420_reg_read(struct smsc9420_pdata *pd, u32 offset)
@@ -1168,7 +1168,7 @@ static int smsc9420_mii_probe(struct net_device *dev)
 
 	/* Device only supports internal PHY at address 1 */
 	if (!pd->mii_bus->phy_map[1]) {
-		pr_err("%s: no PHY found at address 1\n", dev->name);
+		netdev_err(dev, "no PHY found at address 1\n");
 		return -ENODEV;
 	}
 
@@ -1180,12 +1180,12 @@ static int smsc9420_mii_probe(struct net_device *dev)
 			     smsc9420_phy_adjust_link, PHY_INTERFACE_MODE_MII);
 
 	if (IS_ERR(phydev)) {
-		pr_err("%s: Could not attach to PHY\n", dev->name);
+		netdev_err(dev, "Could not attach to PHY\n");
 		return PTR_ERR(phydev);
 	}
 
-	pr_info("%s: attached PHY driver [%s] (mii_bus:phy_addr=%s, irq=%d)\n",
-		dev->name, phydev->drv->name, dev_name(&phydev->dev), phydev->irq);
+	netdev_info(dev, "attached PHY driver [%s] (mii_bus:phy_addr=%s, irq=%d)\n",
+		    phydev->drv->name, dev_name(&phydev->dev), phydev->irq);
 
 	/* mask with MAC supported features */
 	phydev->supported &= (PHY_BASIC_FEATURES | SUPPORTED_Pause |
@@ -1582,12 +1582,12 @@ smsc9420_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	int result = 0;
 	u32 id_rev;
 
-	printk(KERN_INFO DRV_DESCRIPTION " version " DRV_VERSION "\n");
+	pr_info(DRV_DESCRIPTION " version " DRV_VERSION "\n");
 
 	/* First do the PCI initialisation */
 	result = pci_enable_device(pdev);
 	if (unlikely(result)) {
-		printk(KERN_ERR "Cannot enable smsc9420\n");
+		pr_err("Cannot enable smsc9420\n");
 		goto out_0;
 	}
 
@@ -1600,24 +1600,24 @@ smsc9420_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	SET_NETDEV_DEV(dev, &pdev->dev);
 
 	if (!(pci_resource_flags(pdev, SMSC_BAR) & IORESOURCE_MEM)) {
-		printk(KERN_ERR "Cannot find PCI device base address\n");
+		netdev_err(dev, "Cannot find PCI device base address\n");
 		goto out_free_netdev_2;
 	}
 
 	if ((pci_request_regions(pdev, DRV_NAME))) {
-		printk(KERN_ERR "Cannot obtain PCI resources, aborting.\n");
+		netdev_err(dev, "Cannot obtain PCI resources, aborting.\n");
 		goto out_free_netdev_2;
 	}
 
 	if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
-		printk(KERN_ERR "No usable DMA configuration, aborting.\n");
+		netdev_err(dev, "No usable DMA configuration, aborting.\n");
 		goto out_free_regions_3;
 	}
 
 	virt_addr = ioremap(pci_resource_start(pdev, SMSC_BAR),
 		pci_resource_len(pdev, SMSC_BAR));
 	if (!virt_addr) {
-		printk(KERN_ERR "Cannot map device registers, aborting.\n");
+		netdev_err(dev, "Cannot map device registers, aborting.\n");
 		goto out_free_regions_3;
 	}
 
-- 
cgit 


From 5b8f15f78e6fdd572f9265ef24618c10267de318 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Thu, 31 Oct 2013 15:56:10 +0100
Subject: net: cdc_mbim: handle IPv6 Neigbor Solicitations
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

MBIM is a point-to-point protocol transporting raw IP packets
with no L2 headers. Only IPv4 and IPv6 are supported. ARP in
particular is not, which is quite logical given the lack of
L2 headers.

The driver still emulates an ethernet interface, dropping all
unsupported protocols, and avoiding neigbour resolving by
setting the IFF_NOARP flag.

The MBIM specification does not explicitly forbid IPv6 Neighbor
Discovery, and it seems the other OS support will respond to
Neighbor Solicitations on MBIM links. There are therefore
buggy devices out there, which despite the pointlessness, still
require Neighbor Discovery for IPv6 over MBIM.

This is incompatible with the IFF_NOARP flag which disables
both ARP and ND.  We cannot support ARP in any case, so we
have to keep that flag. This patch implements a workaround
for the buggy devices, letting the driver respond directly
to Neighbor Solicitations from the device.

This is not optimal, but will have minimal effect on any sane
device.

Cc: Greg Suarez <gsuarez@smithmicro.com>
Reported-and-tested-by: Thomas Schäfer <tschaefer@t-online.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_mbim.c | 58 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)

diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c
index 25ba7eca9a13..6533a9f7918b 100644
--- a/drivers/net/usb/cdc_mbim.c
+++ b/drivers/net/usb/cdc_mbim.c
@@ -21,6 +21,8 @@
 #include <linux/usb/usbnet.h>
 #include <linux/usb/cdc-wdm.h>
 #include <linux/usb/cdc_ncm.h>
+#include <net/ipv6.h>
+#include <net/addrconf.h>
 
 /* driver specific data - must match cdc_ncm usage */
 struct cdc_mbim_state {
@@ -184,6 +186,60 @@ error:
 	return NULL;
 }
 
+/* Some devices are known to send Neigbor Solicitation messages and
+ * require Neigbor Advertisement replies.  The IPv6 core will not
+ * respond since IFF_NOARP is set, so we must handle them ourselves.
+ */
+static void do_neigh_solicit(struct usbnet *dev, u8 *buf, u16 tci)
+{
+	struct ipv6hdr *iph = (void *)buf;
+	struct nd_msg *msg = (void *)(iph + 1);
+	struct net_device *netdev;
+	struct inet6_dev *in6_dev;
+	bool is_router;
+
+	/* we'll only respond to requests from unicast addresses to
+	 * our solicited node addresses.
+	 */
+	if (!ipv6_addr_is_solict_mult(&iph->daddr) ||
+	    !(ipv6_addr_type(&iph->saddr) & IPV6_ADDR_UNICAST))
+		return;
+
+	/* need to send the NA on the VLAN dev, if any */
+	if (tci)
+		netdev = __vlan_find_dev_deep(dev->net, htons(ETH_P_8021Q),
+					      tci);
+	else
+		netdev = dev->net;
+	if (!netdev)
+		return;
+
+	in6_dev = in6_dev_get(netdev);
+	if (!in6_dev)
+		return;
+	is_router = !!in6_dev->cnf.forwarding;
+	in6_dev_put(in6_dev);
+
+	/* ipv6_stub != NULL if in6_dev_get returned an inet6_dev */
+	ipv6_stub->ndisc_send_na(netdev, NULL, &iph->saddr, &msg->target,
+				 is_router /* router */,
+				 true /* solicited */,
+				 false /* override */,
+				 true /* inc_opt */);
+}
+
+static bool is_neigh_solicit(u8 *buf, size_t len)
+{
+	struct ipv6hdr *iph = (void *)buf;
+	struct nd_msg *msg = (void *)(iph + 1);
+
+	return (len >= sizeof(struct ipv6hdr) + sizeof(struct nd_msg) &&
+		iph->nexthdr == IPPROTO_ICMPV6 &&
+		msg->icmph.icmp6_code == 0 &&
+		msg->icmph.icmp6_type == NDISC_NEIGHBOUR_SOLICITATION);
+}
+
+
 static struct sk_buff *cdc_mbim_process_dgram(struct usbnet *dev, u8 *buf, size_t len, u16 tci)
 {
 	__be16 proto = htons(ETH_P_802_3);
@@ -198,6 +254,8 @@ static struct sk_buff *cdc_mbim_process_dgram(struct usbnet *dev, u8 *buf, size_
 			proto = htons(ETH_P_IP);
 			break;
 		case 0x60:
+			if (is_neigh_solicit(buf, len))
+				do_neigh_solicit(dev, buf, tci);
 			proto = htons(ETH_P_IPV6);
 			break;
 		default:
-- 
cgit 


From c1a2e95435976cb040db1f6c0afbe4287c3d2e28 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Thu, 31 Oct 2013 15:56:11 +0100
Subject: net: cdc_mbim: change the default to send ZLPs
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

A number of devices in the wild have turned out to require ZLPs.
Even if this is a spec violation, our priority is to make any
device work as good as possible. Devices needing ZLPs will fail
to receive any full sized frame we send. On the other hand,
devices which do not need the ZLP will still work if we send
them.

This gives us no other option than sending ZLPs by default.

This will prevent devices conforming to the spec from making the
optimizations which are possible without ZLPs.  Adding known
such devices to a whitelist, to avoid the possible negative
impact of the new spec violating default.

Cc: Greg Suarez <gsuarez@smithmicro.com>
Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_mbim.c | 28 +++++++++++++++++-----------
 1 file changed, 17 insertions(+), 11 deletions(-)

diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c
index 6533a9f7918b..253472a8a983 100644
--- a/drivers/net/usb/cdc_mbim.c
+++ b/drivers/net/usb/cdc_mbim.c
@@ -429,9 +429,18 @@ static const struct driver_info cdc_mbim_info = {
 };
 
 /* MBIM and NCM devices should not need a ZLP after NTBs with
- * dwNtbOutMaxSize length. This driver_info is for the exceptional
- * devices requiring it anyway, allowing them to be supported without
- * forcing the performance penalty on all the sane devices.
+ * dwNtbOutMaxSize length. Nevertheless, a number of devices from
+ * different vendor IDs will fail unless we send ZLPs, forcing us
+ * to make this the default.
+ *
+ * This default may cause a performance penalty for spec conforming
+ * devices wanting to take advantage of optimizations possible without
+ * ZLPs.  A whitelist is added in an attempt to avoid this for devices
+ * known to conform to the MBIM specification.
+ *
+ * All known devices supporting NCM compatibility mode are also
+ * conforming to the NCM and MBIM specifications. For this reason, the
+ * NCM subclass entry is also in the ZLP whitelist.
  */
 static const struct driver_info cdc_mbim_info_zlp = {
 	.description = "CDC MBIM",
@@ -454,16 +463,13 @@ static const struct usb_device_id mbim_devs[] = {
 	{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_NCM, USB_CDC_PROTO_NONE),
 	  .driver_info = (unsigned long)&cdc_mbim_info,
 	},
-	/* Sierra Wireless MC7710 need ZLPs */
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x1199, 0x68a2, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
-	  .driver_info = (unsigned long)&cdc_mbim_info_zlp,
-	},
-	/* HP hs2434 Mobile Broadband Module needs ZLPs */
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x3f0, 0x4b1d, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
-	  .driver_info = (unsigned long)&cdc_mbim_info_zlp,
+	/* ZLP conformance whitelist: All Ericsson MBIM devices */
+	{ USB_VENDOR_AND_INTERFACE_INFO(0x0bdb, USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
+	  .driver_info = (unsigned long)&cdc_mbim_info,
 	},
+	/* default entry */
 	{ USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MBIM, USB_CDC_PROTO_NONE),
-	  .driver_info = (unsigned long)&cdc_mbim_info,
+	  .driver_info = (unsigned long)&cdc_mbim_info_zlp,
 	},
 	{
 	},
-- 
cgit 


From 20572226fc789f9f515331d911a3bd3a0d24c67a Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:38 +0100
Subject: net: cdc_ncm: simplify and optimize frame padding
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

We can avoid the costly division for the common case where
we pad the frame to tx_max size as long as we ensure that
tx_max is either the device specified dwNtbOutMaxSize or not
a multiplum of wMaxPacketSize.

Using the preconverted 'maxpacket' field avoids converting
wMaxPacketSize to CPU endianness for every transmitted frame

And since we only will hit the one byte padding rule for short
frames, we can drop testing the skb for tailroom.

The change means that tx_max now represents the real maximum
skb size, enabling us to allocate the correct size instead of
always making room for one extra byte.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c | 31 +++++++++++++++++++------------
 1 file changed, 19 insertions(+), 12 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 43afde8f48d2..38566bffca98 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -506,6 +506,15 @@ advance:
 	dev->status = ctx->status_ep;
 	dev->rx_urb_size = ctx->rx_max;
 
+	/* cdc_ncm_setup will override dwNtbOutMaxSize if it is
+	 * outside the sane range. Adding a pad byte here if necessary
+	 * simplifies the handling in cdc_ncm_fill_tx_frame, making
+	 * tx_max always represent the real skb max size.
+	 */
+	if (ctx->tx_max != le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize) &&
+	    ctx->tx_max % usb_maxpacket(dev->udev, dev->out, 1) == 0)
+		ctx->tx_max++;
+
 	ctx->tx_speed = ctx->rx_speed = 0;
 	return 0;
 
@@ -664,6 +673,7 @@ static struct usb_cdc_ncm_ndp16 *cdc_ncm_ndp(struct cdc_ncm_ctx *ctx, struct sk_
 struct sk_buff *
 cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb, __le32 sign)
 {
+	struct usbnet *dev = netdev_priv(ctx->netdev);
 	struct usb_cdc_ncm_nth16 *nth16;
 	struct usb_cdc_ncm_ndp16 *ndp16;
 	struct sk_buff *skb_out;
@@ -683,7 +693,7 @@ cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb, __le32 sign)
 
 	/* allocate a new OUT skb */
 	if (!skb_out) {
-		skb_out = alloc_skb((ctx->tx_max + 1), GFP_ATOMIC);
+		skb_out = alloc_skb(ctx->tx_max, GFP_ATOMIC);
 		if (skb_out == NULL) {
 			if (skb != NULL) {
 				dev_kfree_skb_any(skb);
@@ -788,19 +798,16 @@ cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb, __le32 sign)
 		/* variables will be reset at next call */
 	}
 
-	/*
-	 * If collected data size is less or equal CDC_NCM_MIN_TX_PKT bytes,
-	 * we send buffers as it is. If we get more data, it would be more
-	 * efficient for USB HS mobile device with DMA engine to receive a full
-	 * size NTB, than canceling DMA transfer and receiving a short packet.
+	/* If collected data size is less or equal CDC_NCM_MIN_TX_PKT
+	 * bytes, we send buffers as it is. If we get more data, it
+	 * would be more efficient for USB HS mobile device with DMA
+	 * engine to receive a full size NTB, than canceling DMA
+	 * transfer and receiving a short packet.
 	 */
 	if (skb_out->len > CDC_NCM_MIN_TX_PKT)
-		/* final zero padding */
-		memset(skb_put(skb_out, ctx->tx_max - skb_out->len), 0, ctx->tx_max - skb_out->len);
-
-	/* do we need to prevent a ZLP? */
-	if (((skb_out->len % le16_to_cpu(ctx->out_ep->desc.wMaxPacketSize)) == 0) &&
-	    (skb_out->len < le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize)) && skb_tailroom(skb_out))
+		memset(skb_put(skb_out, ctx->tx_max - skb_out->len), 0,
+		       ctx->tx_max - skb_out->len);
+	else if ((skb_out->len % dev->maxpacket) == 0)
 		*skb_put(skb_out, 1) = 0;	/* force short packet */
 
 	/* set final frame length */
-- 
cgit 


From f6701d5f73c5c2f4ca37634514631fb056291f89 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:39 +0100
Subject: net: cdc_ncm: add include protection to cdc_ncm.h
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This makes it a lot easier to test modified versions

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/usb/cdc_ncm.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/include/linux/usb/cdc_ncm.h b/include/linux/usb/cdc_ncm.h
index cc25b70af33c..89f0bbc2cf83 100644
--- a/include/linux/usb/cdc_ncm.h
+++ b/include/linux/usb/cdc_ncm.h
@@ -36,6 +36,9 @@
  * SUCH DAMAGE.
  */
 
+#ifndef __LINUX_USB_CDC_NCM_H
+#define __LINUX_USB_CDC_NCM_H
+
 #define CDC_NCM_COMM_ALTSETTING_NCM		0
 #define CDC_NCM_COMM_ALTSETTING_MBIM		1
 
@@ -133,3 +136,5 @@ extern void cdc_ncm_unbind(struct usbnet *dev, struct usb_interface *intf);
 extern struct sk_buff *cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb, __le32 sign);
 extern int cdc_ncm_rx_verify_nth16(struct cdc_ncm_ctx *ctx, struct sk_buff *skb_in);
 extern int cdc_ncm_rx_verify_ndp16(struct sk_buff *skb_in, int ndpoffset);
+
+#endif /* __LINUX_USB_CDC_NCM_H */
-- 
cgit 


From 3e515665a76ad8f60a1c05968cc6a5b2f2701171 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:40 +0100
Subject: net: cdc_ncm: remove redundant "intf" field
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This is always a duplicate of the "control" field. It causes
confusion wrt intf_data updates and cleanups.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c   | 4 +---
 include/linux/usb/cdc_ncm.h | 1 -
 2 files changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 38566bffca98..bfab8796730f 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -382,7 +382,6 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_
 	len = intf->cur_altsetting->extralen;
 
 	ctx->udev = dev->udev;
-	ctx->intf = intf;
 
 	/* parse through descriptors associated with control interface */
 	while ((len > 0) && (buf[0] > 2) && (buf[0] <= len)) {
@@ -489,7 +488,6 @@ advance:
 
 	usb_set_intfdata(ctx->data, dev);
 	usb_set_intfdata(ctx->control, dev);
-	usb_set_intfdata(ctx->intf, dev);
 
 	if (ctx->ether_desc) {
 		temp = usbnet_get_ethernet_addr(dev, ctx->ether_desc->iMACAddress);
@@ -562,7 +560,7 @@ void cdc_ncm_unbind(struct usbnet *dev, struct usb_interface *intf)
 		ctx->control = NULL;
 	}
 
-	usb_set_intfdata(ctx->intf, NULL);
+	usb_set_intfdata(intf, NULL);
 	cdc_ncm_free(ctx);
 }
 EXPORT_SYMBOL_GPL(cdc_ncm_unbind);
diff --git a/include/linux/usb/cdc_ncm.h b/include/linux/usb/cdc_ncm.h
index 89f0bbc2cf83..c14e00fb1667 100644
--- a/include/linux/usb/cdc_ncm.h
+++ b/include/linux/usb/cdc_ncm.h
@@ -103,7 +103,6 @@ struct cdc_ncm_ctx {
 	struct usb_host_endpoint *in_ep;
 	struct usb_host_endpoint *out_ep;
 	struct usb_host_endpoint *status_ep;
-	struct usb_interface *intf;
 	struct usb_interface *control;
 	struct usb_interface *data;
 
-- 
cgit 


From ff1632aa8581b7103ac2af1ea3cb4a415eb9d6ad Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:41 +0100
Subject: net: cdc_ncm: remove redundant endpoint pointers
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

No need to duplicate stuff already in the common usbnet
struct.  We still need to keep our special find_endpoints
function because we need explicit control over the selected
altsetting.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c   | 38 +++++++++++++++++++-------------------
 include/linux/usb/cdc_ncm.h |  3 ---
 2 files changed, 19 insertions(+), 22 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index bfab8796730f..a989bd5290a6 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -292,9 +292,9 @@ max_dgram_err:
 }
 
 static void
-cdc_ncm_find_endpoints(struct cdc_ncm_ctx *ctx, struct usb_interface *intf)
+cdc_ncm_find_endpoints(struct usbnet *dev, struct usb_interface *intf)
 {
-	struct usb_host_endpoint *e;
+	struct usb_host_endpoint *e, *in = NULL, *out = NULL;
 	u8 ep;
 
 	for (ep = 0; ep < intf->cur_altsetting->desc.bNumEndpoints; ep++) {
@@ -303,18 +303,18 @@ cdc_ncm_find_endpoints(struct cdc_ncm_ctx *ctx, struct usb_interface *intf)
 		switch (e->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
 		case USB_ENDPOINT_XFER_INT:
 			if (usb_endpoint_dir_in(&e->desc)) {
-				if (ctx->status_ep == NULL)
-					ctx->status_ep = e;
+				if (!dev->status)
+					dev->status = e;
 			}
 			break;
 
 		case USB_ENDPOINT_XFER_BULK:
 			if (usb_endpoint_dir_in(&e->desc)) {
-				if (ctx->in_ep == NULL)
-					ctx->in_ep = e;
+				if (!in)
+					in = e;
 			} else {
-				if (ctx->out_ep == NULL)
-					ctx->out_ep = e;
+				if (!out)
+					out = e;
 			}
 			break;
 
@@ -322,6 +322,14 @@ cdc_ncm_find_endpoints(struct cdc_ncm_ctx *ctx, struct usb_interface *intf)
 			break;
 		}
 	}
+	if (in && !dev->in)
+		dev->in = usb_rcvbulkpipe(dev->udev,
+					  in->desc.bEndpointAddress &
+					  USB_ENDPOINT_NUMBER_MASK);
+	if (out && !dev->out)
+		dev->out = usb_sndbulkpipe(dev->udev,
+					   out->desc.bEndpointAddress &
+					   USB_ENDPOINT_NUMBER_MASK);
 }
 
 static void cdc_ncm_free(struct cdc_ncm_ctx *ctx)
@@ -477,11 +485,9 @@ advance:
 	if (temp)
 		goto error2;
 
-	cdc_ncm_find_endpoints(ctx, ctx->data);
-	cdc_ncm_find_endpoints(ctx, ctx->control);
-
-	if ((ctx->in_ep == NULL) || (ctx->out_ep == NULL) ||
-	    (ctx->status_ep == NULL))
+	cdc_ncm_find_endpoints(dev, ctx->data);
+	cdc_ncm_find_endpoints(dev, ctx->control);
+	if (!dev->in || !dev->out || !dev->status)
 		goto error2;
 
 	dev->net->ethtool_ops = &cdc_ncm_ethtool_ops;
@@ -496,12 +502,6 @@ advance:
 		dev_info(&dev->udev->dev, "MAC-Address: %pM\n", dev->net->dev_addr);
 	}
 
-
-	dev->in = usb_rcvbulkpipe(dev->udev,
-		ctx->in_ep->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
-	dev->out = usb_sndbulkpipe(dev->udev,
-		ctx->out_ep->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
-	dev->status = ctx->status_ep;
 	dev->rx_urb_size = ctx->rx_max;
 
 	/* cdc_ncm_setup will override dwNtbOutMaxSize if it is
diff --git a/include/linux/usb/cdc_ncm.h b/include/linux/usb/cdc_ncm.h
index c14e00fb1667..36e1e153ca2d 100644
--- a/include/linux/usb/cdc_ncm.h
+++ b/include/linux/usb/cdc_ncm.h
@@ -100,9 +100,6 @@ struct cdc_ncm_ctx {
 
 	struct net_device *netdev;
 	struct usb_device *udev;
-	struct usb_host_endpoint *in_ep;
-	struct usb_host_endpoint *out_ep;
-	struct usb_host_endpoint *status_ep;
 	struct usb_interface *control;
 	struct usb_interface *data;
 
-- 
cgit 


From bed6f762123fc53c63efef386531dd877cba2468 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:42 +0100
Subject: net: cdc_ncm: remove redundant netdev field
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Too many pointers back and forth are likely to confuse developers,
creating subtle bugs whenever we forget to syncronize them all.

As a usbnet driver, we should stick with the standard struct
usbnet fields as much as possible.  The netdevice is one such
field.

Cc: Greg Suarez <gsuarez@smithmicro.com>
Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_mbim.c  |  2 +-
 drivers/net/usb/cdc_ncm.c   | 73 +++++++++++++++++++++++----------------------
 include/linux/usb/cdc_ncm.h |  3 +-
 3 files changed, 39 insertions(+), 39 deletions(-)

diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c
index 253472a8a983..af76aaf08b6b 100644
--- a/drivers/net/usb/cdc_mbim.c
+++ b/drivers/net/usb/cdc_mbim.c
@@ -175,7 +175,7 @@ static struct sk_buff *cdc_mbim_tx_fixup(struct usbnet *dev, struct sk_buff *skb
 	}
 
 	spin_lock_bh(&ctx->mtx);
-	skb_out = cdc_ncm_fill_tx_frame(ctx, skb, sign);
+	skb_out = cdc_ncm_fill_tx_frame(dev, skb, sign);
 	spin_unlock_bh(&ctx->mtx);
 	return skb_out;
 
diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index a989bd5290a6..e39e7678a798 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -80,8 +80,9 @@ cdc_ncm_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info)
 	usb_make_path(dev->udev, info->bus_info, sizeof(info->bus_info));
 }
 
-static u8 cdc_ncm_setup(struct cdc_ncm_ctx *ctx)
+static u8 cdc_ncm_setup(struct usbnet *dev)
 {
+	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
 	u32 val;
 	u8 flags;
 	u8 iface_no;
@@ -90,7 +91,6 @@ static u8 cdc_ncm_setup(struct cdc_ncm_ctx *ctx)
 	u16 ntb_fmt_supported;
 	u32 min_dgram_size;
 	u32 min_hdr_size;
-	struct usbnet *dev = netdev_priv(ctx->netdev);
 
 	iface_no = ctx->control->cur_altsetting->desc.bInterfaceNumber;
 
@@ -285,8 +285,8 @@ static u8 cdc_ncm_setup(struct cdc_ncm_ctx *ctx)
 	}
 
 max_dgram_err:
-	if (ctx->netdev->mtu != (ctx->max_datagram_size - eth_hlen))
-		ctx->netdev->mtu = ctx->max_datagram_size - eth_hlen;
+	if (dev->net->mtu != (ctx->max_datagram_size - eth_hlen))
+		dev->net->mtu = ctx->max_datagram_size - eth_hlen;
 
 	return 0;
 }
@@ -375,11 +375,10 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_
 
 	hrtimer_init(&ctx->tx_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	ctx->tx_timer.function = &cdc_ncm_tx_timer_cb;
-	ctx->bh.data = (unsigned long)ctx;
+	ctx->bh.data = (unsigned long)dev;
 	ctx->bh.func = cdc_ncm_txpath_bh;
 	atomic_set(&ctx->stop, 0);
 	spin_lock_init(&ctx->mtx);
-	ctx->netdev = dev->net;
 
 	/* store ctx pointer in device data field */
 	dev->data[0] = (unsigned long)ctx;
@@ -477,7 +476,7 @@ advance:
 		goto error2;
 
 	/* initialize data interface */
-	if (cdc_ncm_setup(ctx))
+	if (cdc_ncm_setup(dev))
 		goto error2;
 
 	/* configure data interface */
@@ -669,9 +668,9 @@ static struct usb_cdc_ncm_ndp16 *cdc_ncm_ndp(struct cdc_ncm_ctx *ctx, struct sk_
 }
 
 struct sk_buff *
-cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb, __le32 sign)
+cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign)
 {
-	struct usbnet *dev = netdev_priv(ctx->netdev);
+	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
 	struct usb_cdc_ncm_nth16 *nth16;
 	struct usb_cdc_ncm_ndp16 *ndp16;
 	struct sk_buff *skb_out;
@@ -695,7 +694,7 @@ cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb, __le32 sign)
 		if (skb_out == NULL) {
 			if (skb != NULL) {
 				dev_kfree_skb_any(skb);
-				ctx->netdev->stats.tx_dropped++;
+				dev->net->stats.tx_dropped++;
 			}
 			goto exit_no_skb;
 		}
@@ -733,12 +732,12 @@ cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb, __le32 sign)
 				/* won't fit, MTU problem? */
 				dev_kfree_skb_any(skb);
 				skb = NULL;
-				ctx->netdev->stats.tx_dropped++;
+				dev->net->stats.tx_dropped++;
 			} else {
 				/* no room for skb - store for later */
 				if (ctx->tx_rem_skb != NULL) {
 					dev_kfree_skb_any(ctx->tx_rem_skb);
-					ctx->netdev->stats.tx_dropped++;
+					dev->net->stats.tx_dropped++;
 				}
 				ctx->tx_rem_skb = skb;
 				ctx->tx_rem_sign = sign;
@@ -771,7 +770,7 @@ cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb, __le32 sign)
 	if (skb != NULL) {
 		dev_kfree_skb_any(skb);
 		skb = NULL;
-		ctx->netdev->stats.tx_dropped++;
+		dev->net->stats.tx_dropped++;
 	}
 
 	ctx->tx_curr_frame_num = n;
@@ -814,7 +813,7 @@ cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb, __le32 sign)
 
 	/* return skb */
 	ctx->tx_curr_skb = NULL;
-	ctx->netdev->stats.tx_packets += ctx->tx_curr_frame_num;
+	dev->net->stats.tx_packets += ctx->tx_curr_frame_num;
 	return skb_out;
 
 exit_no_skb:
@@ -846,18 +845,19 @@ static enum hrtimer_restart cdc_ncm_tx_timer_cb(struct hrtimer *timer)
 
 static void cdc_ncm_txpath_bh(unsigned long param)
 {
-	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)param;
+	struct usbnet *dev = (struct usbnet *)param;
+	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
 
 	spin_lock_bh(&ctx->mtx);
 	if (ctx->tx_timer_pending != 0) {
 		ctx->tx_timer_pending--;
 		cdc_ncm_tx_timeout_start(ctx);
 		spin_unlock_bh(&ctx->mtx);
-	} else if (ctx->netdev != NULL) {
+	} else if (dev->net != NULL) {
 		spin_unlock_bh(&ctx->mtx);
-		netif_tx_lock_bh(ctx->netdev);
-		usbnet_start_xmit(NULL, ctx->netdev);
-		netif_tx_unlock_bh(ctx->netdev);
+		netif_tx_lock_bh(dev->net);
+		usbnet_start_xmit(NULL, dev->net);
+		netif_tx_unlock_bh(dev->net);
 	} else {
 		spin_unlock_bh(&ctx->mtx);
 	}
@@ -880,7 +880,7 @@ cdc_ncm_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
 		goto error;
 
 	spin_lock_bh(&ctx->mtx);
-	skb_out = cdc_ncm_fill_tx_frame(ctx, skb, cpu_to_le32(USB_CDC_NCM_NDP16_NOCRC_SIGN));
+	skb_out = cdc_ncm_fill_tx_frame(dev, skb, cpu_to_le32(USB_CDC_NCM_NDP16_NOCRC_SIGN));
 	spin_unlock_bh(&ctx->mtx);
 	return skb_out;
 
@@ -1047,9 +1047,10 @@ error:
 }
 
 static void
-cdc_ncm_speed_change(struct cdc_ncm_ctx *ctx,
+cdc_ncm_speed_change(struct usbnet *dev,
 		     struct usb_cdc_speed_change *data)
 {
+	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
 	uint32_t rx_speed = le32_to_cpu(data->DLBitRRate);
 	uint32_t tx_speed = le32_to_cpu(data->ULBitRate);
 
@@ -1063,18 +1064,18 @@ cdc_ncm_speed_change(struct cdc_ncm_ctx *ctx,
 
 		if ((tx_speed > 1000000) && (rx_speed > 1000000)) {
 			printk(KERN_INFO KBUILD_MODNAME
-				": %s: %u mbit/s downlink "
-				"%u mbit/s uplink\n",
-				ctx->netdev->name,
-				(unsigned int)(rx_speed / 1000000U),
-				(unsigned int)(tx_speed / 1000000U));
+			       ": %s: %u mbit/s downlink "
+			       "%u mbit/s uplink\n",
+			       dev->net->name,
+			       (unsigned int)(rx_speed / 1000000U),
+			       (unsigned int)(tx_speed / 1000000U));
 		} else {
 			printk(KERN_INFO KBUILD_MODNAME
-				": %s: %u kbit/s downlink "
-				"%u kbit/s uplink\n",
-				ctx->netdev->name,
-				(unsigned int)(rx_speed / 1000U),
-				(unsigned int)(tx_speed / 1000U));
+			       ": %s: %u kbit/s downlink "
+			       "%u kbit/s uplink\n",
+			       dev->net->name,
+			       (unsigned int)(rx_speed / 1000U),
+			       (unsigned int)(tx_speed / 1000U));
 		}
 	}
 }
@@ -1091,7 +1092,7 @@ static void cdc_ncm_status(struct usbnet *dev, struct urb *urb)
 
 	/* test for split data in 8-byte chunks */
 	if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) {
-		cdc_ncm_speed_change(ctx,
+		cdc_ncm_speed_change(dev,
 		      (struct usb_cdc_speed_change *)urb->transfer_buffer);
 		return;
 	}
@@ -1108,8 +1109,8 @@ static void cdc_ncm_status(struct usbnet *dev, struct urb *urb)
 		ctx->connected = le16_to_cpu(event->wValue);
 
 		printk(KERN_INFO KBUILD_MODNAME ": %s: network connection:"
-			" %sconnected\n",
-			ctx->netdev->name, ctx->connected ? "" : "dis");
+		       " %sconnected\n",
+		       dev->net->name, ctx->connected ? "" : "dis");
 
 		usbnet_link_change(dev, ctx->connected, 0);
 		if (!ctx->connected)
@@ -1121,8 +1122,8 @@ static void cdc_ncm_status(struct usbnet *dev, struct urb *urb)
 					sizeof(struct usb_cdc_speed_change)))
 			set_bit(EVENT_STS_SPLIT, &dev->flags);
 		else
-			cdc_ncm_speed_change(ctx,
-				(struct usb_cdc_speed_change *) &event[1]);
+			cdc_ncm_speed_change(dev,
+					     (struct usb_cdc_speed_change *)&event[1]);
 		break;
 
 	default:
diff --git a/include/linux/usb/cdc_ncm.h b/include/linux/usb/cdc_ncm.h
index 36e1e153ca2d..5c47bd9620d5 100644
--- a/include/linux/usb/cdc_ncm.h
+++ b/include/linux/usb/cdc_ncm.h
@@ -98,7 +98,6 @@ struct cdc_ncm_ctx {
 	const struct usb_cdc_union_desc *union_desc;
 	const struct usb_cdc_ether_desc *ether_desc;
 
-	struct net_device *netdev;
 	struct usb_device *udev;
 	struct usb_interface *control;
 	struct usb_interface *data;
@@ -129,7 +128,7 @@ struct cdc_ncm_ctx {
 extern u8 cdc_ncm_select_altsetting(struct usbnet *dev, struct usb_interface *intf);
 extern int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_altsetting);
 extern void cdc_ncm_unbind(struct usbnet *dev, struct usb_interface *intf);
-extern struct sk_buff *cdc_ncm_fill_tx_frame(struct cdc_ncm_ctx *ctx, struct sk_buff *skb, __le32 sign);
+extern struct sk_buff *cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign);
 extern int cdc_ncm_rx_verify_nth16(struct cdc_ncm_ctx *ctx, struct sk_buff *skb_in);
 extern int cdc_ncm_rx_verify_ndp16(struct sk_buff *skb_in, int ndpoffset);
 
-- 
cgit 


From de5bee2720776989060b9686e6a89e938a346345 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:43 +0100
Subject: net: cdc_ncm: remove unused udev field
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

We already use the usbnet udev field everywhere this could have
been used.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c   | 2 --
 include/linux/usb/cdc_ncm.h | 1 -
 2 files changed, 3 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index e39e7678a798..9cdd762916dc 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -388,8 +388,6 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_
 	buf = intf->cur_altsetting->extra;
 	len = intf->cur_altsetting->extralen;
 
-	ctx->udev = dev->udev;
-
 	/* parse through descriptors associated with control interface */
 	while ((len > 0) && (buf[0] > 2) && (buf[0] <= len)) {
 
diff --git a/include/linux/usb/cdc_ncm.h b/include/linux/usb/cdc_ncm.h
index 5c47bd9620d5..059dcc93c4d8 100644
--- a/include/linux/usb/cdc_ncm.h
+++ b/include/linux/usb/cdc_ncm.h
@@ -98,7 +98,6 @@ struct cdc_ncm_ctx {
 	const struct usb_cdc_union_desc *union_desc;
 	const struct usb_cdc_ether_desc *ether_desc;
 
-	struct usb_device *udev;
 	struct usb_interface *control;
 	struct usb_interface *data;
 
-- 
cgit 


From f3028c524a7cd4d97b034fc1f35dcaecb5d6f9d6 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:44 +0100
Subject: net: cdc_ncm: remove tx_speed and rx_speed fields
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

These fields are only used to prevent printing the same speeds
multiple times if we receive multiple identical speed notifications.

The value of these printk's is questionable, and even more so when
we filter out some of the notifications sent us by the firmware. If
we are going to print any of these, then we should print them all.

Removing little used fields is a bonus.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c   | 37 ++++++++++++++-----------------------
 include/linux/usb/cdc_ncm.h |  2 --
 2 files changed, 14 insertions(+), 25 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 9cdd762916dc..fc36a99f8183 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -510,7 +510,6 @@ advance:
 	    ctx->tx_max % usb_maxpacket(dev->udev, dev->out, 1) == 0)
 		ctx->tx_max++;
 
-	ctx->tx_speed = ctx->rx_speed = 0;
 	return 0;
 
 error2:
@@ -1048,7 +1047,6 @@ static void
 cdc_ncm_speed_change(struct usbnet *dev,
 		     struct usb_cdc_speed_change *data)
 {
-	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
 	uint32_t rx_speed = le32_to_cpu(data->DLBitRRate);
 	uint32_t tx_speed = le32_to_cpu(data->ULBitRate);
 
@@ -1056,25 +1054,20 @@ cdc_ncm_speed_change(struct usbnet *dev,
 	 * Currently the USB-NET API does not support reporting the actual
 	 * device speed. Do print it instead.
 	 */
-	if ((tx_speed != ctx->tx_speed) || (rx_speed != ctx->rx_speed)) {
-		ctx->tx_speed = tx_speed;
-		ctx->rx_speed = rx_speed;
-
-		if ((tx_speed > 1000000) && (rx_speed > 1000000)) {
-			printk(KERN_INFO KBUILD_MODNAME
-			       ": %s: %u mbit/s downlink "
-			       "%u mbit/s uplink\n",
-			       dev->net->name,
-			       (unsigned int)(rx_speed / 1000000U),
-			       (unsigned int)(tx_speed / 1000000U));
-		} else {
-			printk(KERN_INFO KBUILD_MODNAME
-			       ": %s: %u kbit/s downlink "
-			       "%u kbit/s uplink\n",
-			       dev->net->name,
-			       (unsigned int)(rx_speed / 1000U),
-			       (unsigned int)(tx_speed / 1000U));
-		}
+	if ((tx_speed > 1000000) && (rx_speed > 1000000)) {
+		printk(KERN_INFO KBUILD_MODNAME
+		       ": %s: %u mbit/s downlink "
+		       "%u mbit/s uplink\n",
+		       dev->net->name,
+		       (unsigned int)(rx_speed / 1000000U),
+		       (unsigned int)(tx_speed / 1000000U));
+	} else {
+		printk(KERN_INFO KBUILD_MODNAME
+		       ": %s: %u kbit/s downlink "
+		       "%u kbit/s uplink\n",
+		       dev->net->name,
+		       (unsigned int)(rx_speed / 1000U),
+		       (unsigned int)(tx_speed / 1000U));
 	}
 }
 
@@ -1111,8 +1104,6 @@ static void cdc_ncm_status(struct usbnet *dev, struct urb *urb)
 		       dev->net->name, ctx->connected ? "" : "dis");
 
 		usbnet_link_change(dev, ctx->connected, 0);
-		if (!ctx->connected)
-			ctx->tx_speed = ctx->rx_speed = 0;
 		break;
 
 	case USB_CDC_NOTIFY_SPEED_CHANGE:
diff --git a/include/linux/usb/cdc_ncm.h b/include/linux/usb/cdc_ncm.h
index 059dcc93c4d8..f14af3dd0cce 100644
--- a/include/linux/usb/cdc_ncm.h
+++ b/include/linux/usb/cdc_ncm.h
@@ -110,8 +110,6 @@ struct cdc_ncm_ctx {
 
 	u32 tx_timer_pending;
 	u32 tx_curr_frame_num;
-	u32 rx_speed;
-	u32 tx_speed;
 	u32 rx_max;
 	u32 tx_max;
 	u32 max_datagram_size;
-- 
cgit 


From 6a9612e2cb22b3fd6a7304dcbf2b4ee1cf2104b2 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:45 +0100
Subject: net: cdc_ncm: remove ncm_parm field
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Moving the call to cdc_ncm_setup() after the endpoint
setup removes the last remaining reference to ncm_parm
outside cdc_ncm_setup.

Collecting all the ncm_parm based calculations in
cdc_ncm_setup improves readability.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c   | 46 ++++++++++++++++++++++-----------------------
 include/linux/usb/cdc_ncm.h |  1 -
 2 files changed, 23 insertions(+), 24 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index fc36a99f8183..4de3a5423e87 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -83,6 +83,7 @@ cdc_ncm_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info)
 static u8 cdc_ncm_setup(struct usbnet *dev)
 {
 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
+	struct usb_cdc_ncm_ntb_parameters ncm_parm;
 	u32 val;
 	u8 flags;
 	u8 iface_no;
@@ -97,22 +98,22 @@ static u8 cdc_ncm_setup(struct usbnet *dev)
 	err = usbnet_read_cmd(dev, USB_CDC_GET_NTB_PARAMETERS,
 			      USB_TYPE_CLASS | USB_DIR_IN
 			      |USB_RECIP_INTERFACE,
-			      0, iface_no, &ctx->ncm_parm,
-			      sizeof(ctx->ncm_parm));
+			      0, iface_no, &ncm_parm,
+			      sizeof(ncm_parm));
 	if (err < 0) {
 		pr_debug("failed GET_NTB_PARAMETERS\n");
 		return 1;
 	}
 
 	/* read correct set of parameters according to device mode */
-	ctx->rx_max = le32_to_cpu(ctx->ncm_parm.dwNtbInMaxSize);
-	ctx->tx_max = le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize);
-	ctx->tx_remainder = le16_to_cpu(ctx->ncm_parm.wNdpOutPayloadRemainder);
-	ctx->tx_modulus = le16_to_cpu(ctx->ncm_parm.wNdpOutDivisor);
-	ctx->tx_ndp_modulus = le16_to_cpu(ctx->ncm_parm.wNdpOutAlignment);
+	ctx->rx_max = le32_to_cpu(ncm_parm.dwNtbInMaxSize);
+	ctx->tx_max = le32_to_cpu(ncm_parm.dwNtbOutMaxSize);
+	ctx->tx_remainder = le16_to_cpu(ncm_parm.wNdpOutPayloadRemainder);
+	ctx->tx_modulus = le16_to_cpu(ncm_parm.wNdpOutDivisor);
+	ctx->tx_ndp_modulus = le16_to_cpu(ncm_parm.wNdpOutAlignment);
 	/* devices prior to NCM Errata shall set this field to zero */
-	ctx->tx_max_datagrams = le16_to_cpu(ctx->ncm_parm.wNtbOutMaxDatagrams);
-	ntb_fmt_supported = le16_to_cpu(ctx->ncm_parm.bmNtbFormatsSupported);
+	ctx->tx_max_datagrams = le16_to_cpu(ncm_parm.wNtbOutMaxDatagrams);
+	ntb_fmt_supported = le16_to_cpu(ncm_parm.bmNtbFormatsSupported);
 
 	eth_hlen = ETH_HLEN;
 	min_dgram_size = CDC_NCM_MIN_DATAGRAM_SIZE;
@@ -153,7 +154,7 @@ static u8 cdc_ncm_setup(struct usbnet *dev)
 	}
 
 	/* inform device about NTB input size changes */
-	if (ctx->rx_max != le32_to_cpu(ctx->ncm_parm.dwNtbInMaxSize)) {
+	if (ctx->rx_max != le32_to_cpu(ncm_parm.dwNtbInMaxSize)) {
 		__le32 dwNtbInMaxSize = cpu_to_le32(ctx->rx_max);
 
 		err = usbnet_write_cmd(dev, USB_CDC_SET_NTB_INPUT_SIZE,
@@ -171,6 +172,14 @@ static u8 cdc_ncm_setup(struct usbnet *dev)
 		pr_debug("Using default maximum transmit length=%d\n",
 						CDC_NCM_NTB_MAX_SIZE_TX);
 		ctx->tx_max = CDC_NCM_NTB_MAX_SIZE_TX;
+
+		/* Adding a pad byte here simplifies the handling in
+		 * cdc_ncm_fill_tx_frame, by making tx_max always
+		 * represent the real skb max size.
+		 */
+		if (ctx->tx_max % usb_maxpacket(dev->udev, dev->out, 1) == 0)
+			ctx->tx_max++;
+
 	}
 
 	/*
@@ -473,10 +482,6 @@ advance:
 	if (temp)
 		goto error2;
 
-	/* initialize data interface */
-	if (cdc_ncm_setup(dev))
-		goto error2;
-
 	/* configure data interface */
 	temp = usb_set_interface(dev->udev, iface_no, data_altsetting);
 	if (temp)
@@ -487,6 +492,10 @@ advance:
 	if (!dev->in || !dev->out || !dev->status)
 		goto error2;
 
+	/* initialize data interface */
+	if (cdc_ncm_setup(dev))
+		goto error2;
+
 	dev->net->ethtool_ops = &cdc_ncm_ethtool_ops;
 
 	usb_set_intfdata(ctx->data, dev);
@@ -501,15 +510,6 @@ advance:
 
 	dev->rx_urb_size = ctx->rx_max;
 
-	/* cdc_ncm_setup will override dwNtbOutMaxSize if it is
-	 * outside the sane range. Adding a pad byte here if necessary
-	 * simplifies the handling in cdc_ncm_fill_tx_frame, making
-	 * tx_max always represent the real skb max size.
-	 */
-	if (ctx->tx_max != le32_to_cpu(ctx->ncm_parm.dwNtbOutMaxSize) &&
-	    ctx->tx_max % usb_maxpacket(dev->udev, dev->out, 1) == 0)
-		ctx->tx_max++;
-
 	return 0;
 
 error2:
diff --git a/include/linux/usb/cdc_ncm.h b/include/linux/usb/cdc_ncm.h
index f14af3dd0cce..89b52a0fe4b9 100644
--- a/include/linux/usb/cdc_ncm.h
+++ b/include/linux/usb/cdc_ncm.h
@@ -88,7 +88,6 @@
 #define cdc_ncm_data_intf_is_mbim(x)  ((x)->desc.bInterfaceProtocol == USB_CDC_MBIM_PROTO_NTB)
 
 struct cdc_ncm_ctx {
-	struct usb_cdc_ncm_ntb_parameters ncm_parm;
 	struct hrtimer tx_timer;
 	struct tasklet_struct bh;
 
-- 
cgit 


From 1b5287a7abec1177257a988b523c78dab7056b41 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:46 +0100
Subject: net: cdc_ncm: fix SET_MAX_DATAGRAM_SIZE
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

We need to inform the device about the *new* value, not the
old one.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 4de3a5423e87..b8de8ddd6d98 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -280,6 +280,7 @@ static u8 cdc_ncm_setup(struct usbnet *dev)
 			/* if value changed, update device */
 			if (ctx->max_datagram_size !=
 					le16_to_cpu(max_datagram_size)) {
+				max_datagram_size = cpu_to_le16(ctx->max_datagram_size);
 				err = usbnet_write_cmd(dev,
 						USB_CDC_SET_MAX_DATAGRAM_SIZE,
 						USB_TYPE_CLASS | USB_DIR_OUT
-- 
cgit 


From 832922362e1308aaef95a43383577d56f51fbc3c Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:47 +0100
Subject: net: cdc_ncm: remove descriptor pointers
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

header_desc was completely unused and union_desc was never used
outside cdc_ncm_bind_common.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c   | 12 ++++++------
 include/linux/usb/cdc_ncm.h |  4 +---
 2 files changed, 7 insertions(+), 9 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index b8de8ddd6d98..435fcc75d706 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -372,6 +372,7 @@ static const struct ethtool_ops cdc_ncm_ethtool_ops = {
 
 int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_altsetting)
 {
+	const struct usb_cdc_union_desc *union_desc = NULL;
 	struct cdc_ncm_ctx *ctx;
 	struct usb_driver *driver;
 	u8 *buf;
@@ -406,16 +407,15 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_
 
 		switch (buf[2]) {
 		case USB_CDC_UNION_TYPE:
-			if (buf[0] < sizeof(*(ctx->union_desc)))
+			if (buf[0] < sizeof(*union_desc))
 				break;
 
-			ctx->union_desc =
-					(const struct usb_cdc_union_desc *)buf;
+			union_desc = (const struct usb_cdc_union_desc *)buf;
 
 			ctx->control = usb_ifnum_to_if(dev->udev,
-					ctx->union_desc->bMasterInterface0);
+						       union_desc->bMasterInterface0);
 			ctx->data = usb_ifnum_to_if(dev->udev,
-					ctx->union_desc->bSlaveInterface0);
+						    union_desc->bSlaveInterface0);
 			break;
 
 		case USB_CDC_ETHERNET_TYPE:
@@ -458,7 +458,7 @@ advance:
 	}
 
 	/* some buggy devices have an IAD but no CDC Union */
-	if (!ctx->union_desc && intf->intf_assoc && intf->intf_assoc->bInterfaceCount == 2) {
+	if (!union_desc && intf->intf_assoc && intf->intf_assoc->bInterfaceCount == 2) {
 		ctx->control = intf;
 		ctx->data = usb_ifnum_to_if(dev->udev, intf->cur_altsetting->desc.bInterfaceNumber + 1);
 		dev_dbg(&intf->dev, "CDC Union missing - got slave from IAD\n");
diff --git a/include/linux/usb/cdc_ncm.h b/include/linux/usb/cdc_ncm.h
index 89b52a0fe4b9..cad54ad4ad12 100644
--- a/include/linux/usb/cdc_ncm.h
+++ b/include/linux/usb/cdc_ncm.h
@@ -92,9 +92,7 @@ struct cdc_ncm_ctx {
 	struct tasklet_struct bh;
 
 	const struct usb_cdc_ncm_desc *func_desc;
-	const struct usb_cdc_mbim_desc   *mbim_desc;
-	const struct usb_cdc_header_desc *header_desc;
-	const struct usb_cdc_union_desc *union_desc;
+	const struct usb_cdc_mbim_desc *mbim_desc;
 	const struct usb_cdc_ether_desc *ether_desc;
 
 	struct usb_interface *control;
-- 
cgit 


From 9fe0234c0bf8b3c412df0adc9ebbe6a1e95daf51 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:48 +0100
Subject: net: cdc_ncm: only the control intf can be probed
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The probed interface must be the master/control interface of the
function.  Make this explicit and simplify redundant tests.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 435fcc75d706..5aa3e60851d0 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -394,6 +394,9 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_
 	/* store ctx pointer in device data field */
 	dev->data[0] = (unsigned long)ctx;
 
+	/* only the control interface can be successfully probed */
+	ctx->control = intf;
+
 	/* get some pointers */
 	driver = driver_of(intf);
 	buf = intf->cur_altsetting->extra;
@@ -411,9 +414,10 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_
 				break;
 
 			union_desc = (const struct usb_cdc_union_desc *)buf;
-
-			ctx->control = usb_ifnum_to_if(dev->udev,
-						       union_desc->bMasterInterface0);
+			/* the master must be the interface we are probing */
+			if (intf->cur_altsetting->desc.bInterfaceNumber !=
+			    union_desc->bMasterInterface0)
+				goto error;
 			ctx->data = usb_ifnum_to_if(dev->udev,
 						    union_desc->bSlaveInterface0);
 			break;
@@ -459,14 +463,12 @@ advance:
 
 	/* some buggy devices have an IAD but no CDC Union */
 	if (!union_desc && intf->intf_assoc && intf->intf_assoc->bInterfaceCount == 2) {
-		ctx->control = intf;
 		ctx->data = usb_ifnum_to_if(dev->udev, intf->cur_altsetting->desc.bInterfaceNumber + 1);
 		dev_dbg(&intf->dev, "CDC Union missing - got slave from IAD\n");
 	}
 
 	/* check if we got everything */
-	if ((ctx->control == NULL) || (ctx->data == NULL) ||
-	    ((!ctx->mbim_desc) && ((ctx->ether_desc == NULL) || (ctx->control != intf))))
+	if (!ctx->data || (!ctx->mbim_desc && !ctx->ether_desc))
 		goto error;
 
 	/* claim data interface, if different from control */
-- 
cgit 


From 4d619f625a6011618de9fccc4b282d314d792897 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:49 +0100
Subject: net: cdc_ncm: no point in filling up the NTBs if we send ZLPs
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Padding NTBs to max size is part of the support for devices
optimizing their DMA transfers. This optimization depends on
max sized NTBs not being ZLP terminated. So we are much better
off dropping the padding if we are going to send a ZLP anyway.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 5aa3e60851d0..42c86200f076 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -800,8 +800,12 @@ cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign)
 	 * would be more efficient for USB HS mobile device with DMA
 	 * engine to receive a full size NTB, than canceling DMA
 	 * transfer and receiving a short packet.
+	 *
+	 * This optimization support is pointless if we end up sending
+	 * a ZLP after full sized NTBs.
 	 */
-	if (skb_out->len > CDC_NCM_MIN_TX_PKT)
+	if (!(dev->driver_info->flags & FLAG_SEND_ZLP) &&
+	    skb_out->len > CDC_NCM_MIN_TX_PKT)
 		memset(skb_put(skb_out, ctx->tx_max - skb_out->len), 0,
 		       ctx->tx_max - skb_out->len);
 	else if ((skb_out->len % dev->maxpacket) == 0)
-- 
cgit 


From 085e50e1fe1268e1bea2b1b5a3a2b1ce7f30c786 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:50 +0100
Subject: net: cdc_ncm: remove probe and disconnect wrappers
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

These functions were merely wrappers around the usbnet
variants.  Remove them.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c | 20 ++------------------
 1 file changed, 2 insertions(+), 18 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 42c86200f076..c90d843ec528 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -1141,22 +1141,6 @@ static int cdc_ncm_check_connect(struct usbnet *dev)
 	return !ctx->connected;
 }
 
-static int
-cdc_ncm_probe(struct usb_interface *udev, const struct usb_device_id *prod)
-{
-	return usbnet_probe(udev, prod);
-}
-
-static void cdc_ncm_disconnect(struct usb_interface *intf)
-{
-	struct usbnet *dev = usb_get_intfdata(intf);
-
-	if (dev == NULL)
-		return;		/* already disconnected */
-
-	usbnet_disconnect(intf);
-}
-
 static const struct driver_info cdc_ncm_info = {
 	.description = "CDC NCM",
 	.flags = FLAG_POINTTOPOINT | FLAG_NO_SETINT | FLAG_MULTI_PACKET,
@@ -1267,8 +1251,8 @@ MODULE_DEVICE_TABLE(usb, cdc_devs);
 static struct usb_driver cdc_ncm_driver = {
 	.name = "cdc_ncm",
 	.id_table = cdc_devs,
-	.probe = cdc_ncm_probe,
-	.disconnect = cdc_ncm_disconnect,
+	.probe = usbnet_probe,
+	.disconnect = usbnet_disconnect,
 	.suspend = usbnet_suspend,
 	.resume = usbnet_resume,
 	.reset_resume =	usbnet_resume,
-- 
cgit 


From 0e2c4a00547a406aeb3bb5a3007cc90a62104980 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:51 +0100
Subject: net: cdc_ncm: remove ethtool ops
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

No need to keep this code duplicated from usbnet.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c | 26 --------------------------
 1 file changed, 26 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index c90d843ec528..8fc1a06604aa 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -53,8 +53,6 @@
 #include <linux/usb/cdc.h>
 #include <linux/usb/cdc_ncm.h>
 
-#define	DRIVER_VERSION				"14-Mar-2012"
-
 #if IS_ENABLED(CONFIG_USB_NET_CDC_MBIM)
 static bool prefer_mbim = true;
 #else
@@ -68,18 +66,6 @@ static void cdc_ncm_tx_timeout_start(struct cdc_ncm_ctx *ctx);
 static enum hrtimer_restart cdc_ncm_tx_timer_cb(struct hrtimer *hr_timer);
 static struct usb_driver cdc_ncm_driver;
 
-static void
-cdc_ncm_get_drvinfo(struct net_device *net, struct ethtool_drvinfo *info)
-{
-	struct usbnet *dev = netdev_priv(net);
-
-	strlcpy(info->driver, dev->driver_name, sizeof(info->driver));
-	strlcpy(info->version, DRIVER_VERSION, sizeof(info->version));
-	strlcpy(info->fw_version, dev->driver_info->description,
-		sizeof(info->fw_version));
-	usb_make_path(dev->udev, info->bus_info, sizeof(info->bus_info));
-}
-
 static u8 cdc_ncm_setup(struct usbnet *dev)
 {
 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
@@ -360,16 +346,6 @@ static void cdc_ncm_free(struct cdc_ncm_ctx *ctx)
 	kfree(ctx);
 }
 
-static const struct ethtool_ops cdc_ncm_ethtool_ops = {
-	.get_drvinfo = cdc_ncm_get_drvinfo,
-	.get_link = usbnet_get_link,
-	.get_msglevel = usbnet_get_msglevel,
-	.set_msglevel = usbnet_set_msglevel,
-	.get_settings = usbnet_get_settings,
-	.set_settings = usbnet_set_settings,
-	.nway_reset = usbnet_nway_reset,
-};
-
 int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_altsetting)
 {
 	const struct usb_cdc_union_desc *union_desc = NULL;
@@ -499,8 +475,6 @@ advance:
 	if (cdc_ncm_setup(dev))
 		goto error2;
 
-	dev->net->ethtool_ops = &cdc_ncm_ethtool_ops;
-
 	usb_set_intfdata(ctx->data, dev);
 	usb_set_intfdata(ctx->control, dev);
 
-- 
cgit 


From 43c87f78388443e3bf6c73c05574bfa15b994f0a Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:52 +0100
Subject: net: cdc_ncm: set correct dev->hard_mtu
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

usbnet use the hard_mtu value for sizing the tx queue and nothing
else.  We will be transmitting buffers of up to tx_max size, so
that's the proper value to give usbnet.

The individual datagram size is completely irrelevant here.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 8fc1a06604aa..c40f742f6200 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -404,13 +404,6 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_
 
 			ctx->ether_desc =
 					(const struct usb_cdc_ether_desc *)buf;
-			dev->hard_mtu =
-				le16_to_cpu(ctx->ether_desc->wMaxSegmentSize);
-
-			if (dev->hard_mtu < CDC_NCM_MIN_DATAGRAM_SIZE)
-				dev->hard_mtu =	CDC_NCM_MIN_DATAGRAM_SIZE;
-			else if (dev->hard_mtu > CDC_NCM_MAX_DATAGRAM_SIZE)
-				dev->hard_mtu =	CDC_NCM_MAX_DATAGRAM_SIZE;
 			break;
 
 		case USB_CDC_NCM_TYPE:
@@ -485,6 +478,8 @@ advance:
 		dev_info(&dev->udev->dev, "MAC-Address: %pM\n", dev->net->dev_addr);
 	}
 
+	/* usbnet use these values for sizing tx/rx queues */
+	dev->hard_mtu = ctx->tx_max;
 	dev->rx_urb_size = ctx->rx_max;
 
 	return 0;
-- 
cgit 


From a26fd05debd00b6f4e776d9dca4a39f0b76b01c7 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:53 +0100
Subject: net: cdc_ncm: log the length we warn about
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Fix cut'n'paste typo.  Log the bogus length and not the
irrelevant signature.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index c40f742f6200..b5fdf8f16f5d 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -923,7 +923,7 @@ int cdc_ncm_rx_verify_ndp16(struct sk_buff *skb_in, int ndpoffset)
 
 	if (le16_to_cpu(ndp16->wLength) < USB_CDC_NCM_NDP16_LENGTH_MIN) {
 		pr_debug("invalid DPT16 length <%u>\n",
-					le32_to_cpu(ndp16->dwSignature));
+			 le16_to_cpu(ndp16->wLength));
 		goto error;
 	}
 
-- 
cgit 


From ae223cd406dd63487ad96593248a669da8e551cd Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:54 +0100
Subject: net: cdc_ncm: use netif_* and dev_* instead of pr_*
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Take advantage of standard device name prefixing and
netdevice msglvl control where possible.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c | 98 +++++++++++++++++++++++------------------------
 1 file changed, 48 insertions(+), 50 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index b5fdf8f16f5d..73faf05209b3 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -87,7 +87,7 @@ static u8 cdc_ncm_setup(struct usbnet *dev)
 			      0, iface_no, &ncm_parm,
 			      sizeof(ncm_parm));
 	if (err < 0) {
-		pr_debug("failed GET_NTB_PARAMETERS\n");
+		dev_dbg(&dev->intf->dev, "failed GET_NTB_PARAMETERS\n");
 		return 1;
 	}
 
@@ -115,11 +115,10 @@ static u8 cdc_ncm_setup(struct usbnet *dev)
 		flags = 0;
 	}
 
-	pr_debug("dwNtbInMaxSize=%u dwNtbOutMaxSize=%u "
-		 "wNdpOutPayloadRemainder=%u wNdpOutDivisor=%u "
-		 "wNdpOutAlignment=%u wNtbOutMaxDatagrams=%u flags=0x%x\n",
-		 ctx->rx_max, ctx->tx_max, ctx->tx_remainder, ctx->tx_modulus,
-		 ctx->tx_ndp_modulus, ctx->tx_max_datagrams, flags);
+	dev_dbg(&dev->intf->dev,
+		"dwNtbInMaxSize=%u dwNtbOutMaxSize=%u wNdpOutPayloadRemainder=%u wNdpOutDivisor=%u wNdpOutAlignment=%u wNtbOutMaxDatagrams=%u flags=0x%x\n",
+		ctx->rx_max, ctx->tx_max, ctx->tx_remainder, ctx->tx_modulus,
+		ctx->tx_ndp_modulus, ctx->tx_max_datagrams, flags);
 
 	/* max count of tx datagrams */
 	if ((ctx->tx_max_datagrams == 0) ||
@@ -128,14 +127,14 @@ static u8 cdc_ncm_setup(struct usbnet *dev)
 
 	/* verify maximum size of received NTB in bytes */
 	if (ctx->rx_max < USB_CDC_NCM_NTB_MIN_IN_SIZE) {
-		pr_debug("Using min receive length=%d\n",
-						USB_CDC_NCM_NTB_MIN_IN_SIZE);
+		dev_dbg(&dev->intf->dev, "Using min receive length=%d\n",
+			USB_CDC_NCM_NTB_MIN_IN_SIZE);
 		ctx->rx_max = USB_CDC_NCM_NTB_MIN_IN_SIZE;
 	}
 
 	if (ctx->rx_max > CDC_NCM_NTB_MAX_SIZE_RX) {
-		pr_debug("Using default maximum receive length=%d\n",
-						CDC_NCM_NTB_MAX_SIZE_RX);
+		dev_dbg(&dev->intf->dev, "Using default maximum receive length=%d\n",
+			CDC_NCM_NTB_MAX_SIZE_RX);
 		ctx->rx_max = CDC_NCM_NTB_MAX_SIZE_RX;
 	}
 
@@ -148,15 +147,15 @@ static u8 cdc_ncm_setup(struct usbnet *dev)
 				       | USB_RECIP_INTERFACE,
 				       0, iface_no, &dwNtbInMaxSize, 4);
 		if (err < 0)
-			pr_debug("Setting NTB Input Size failed\n");
+			dev_dbg(&dev->intf->dev, "Setting NTB Input Size failed\n");
 	}
 
 	/* verify maximum size of transmitted NTB in bytes */
 	if ((ctx->tx_max <
 	    (min_hdr_size + min_dgram_size)) ||
 	    (ctx->tx_max > CDC_NCM_NTB_MAX_SIZE_TX)) {
-		pr_debug("Using default maximum transmit length=%d\n",
-						CDC_NCM_NTB_MAX_SIZE_TX);
+		dev_dbg(&dev->intf->dev, "Using default maximum transmit length=%d\n",
+			CDC_NCM_NTB_MAX_SIZE_TX);
 		ctx->tx_max = CDC_NCM_NTB_MAX_SIZE_TX;
 
 		/* Adding a pad byte here simplifies the handling in
@@ -178,7 +177,7 @@ static u8 cdc_ncm_setup(struct usbnet *dev)
 
 	if ((val < USB_CDC_NCM_NDP_ALIGN_MIN_SIZE) ||
 	    (val != ((-val) & val)) || (val >= ctx->tx_max)) {
-		pr_debug("Using default alignment: 4 bytes\n");
+		dev_dbg(&dev->intf->dev, "Using default alignment: 4 bytes\n");
 		ctx->tx_ndp_modulus = USB_CDC_NCM_NDP_ALIGN_MIN_SIZE;
 	}
 
@@ -192,13 +191,13 @@ static u8 cdc_ncm_setup(struct usbnet *dev)
 
 	if ((val < USB_CDC_NCM_NDP_ALIGN_MIN_SIZE) ||
 	    (val != ((-val) & val)) || (val >= ctx->tx_max)) {
-		pr_debug("Using default transmit modulus: 4 bytes\n");
+		dev_dbg(&dev->intf->dev, "Using default transmit modulus: 4 bytes\n");
 		ctx->tx_modulus = USB_CDC_NCM_NDP_ALIGN_MIN_SIZE;
 	}
 
 	/* verify the payload remainder */
 	if (ctx->tx_remainder >= ctx->tx_modulus) {
-		pr_debug("Using default transmit remainder: 0 bytes\n");
+		dev_dbg(&dev->intf->dev, "Using default transmit remainder: 0 bytes\n");
 		ctx->tx_remainder = 0;
 	}
 
@@ -216,7 +215,7 @@ static u8 cdc_ncm_setup(struct usbnet *dev)
 				       USB_CDC_NCM_CRC_NOT_APPENDED,
 				       iface_no, NULL, 0);
 		if (err < 0)
-			pr_debug("Setting CRC mode off failed\n");
+			dev_dbg(&dev->intf->dev, "Setting CRC mode off failed\n");
 	}
 
 	/* set NTB format, if both formats are supported */
@@ -227,7 +226,7 @@ static u8 cdc_ncm_setup(struct usbnet *dev)
 				       USB_CDC_NCM_NTB16_FORMAT,
 				       iface_no, NULL, 0);
 		if (err < 0)
-			pr_debug("Setting NTB format to 16-bit failed\n");
+			dev_dbg(&dev->intf->dev, "Setting NTB format to 16-bit failed\n");
 	}
 
 	ctx->max_datagram_size = min_dgram_size;
@@ -248,8 +247,8 @@ static u8 cdc_ncm_setup(struct usbnet *dev)
 				      | USB_RECIP_INTERFACE,
 				      0, iface_no, &max_datagram_size, 2);
 		if (err < 0) {
-			pr_debug("GET_MAX_DATAGRAM_SIZE failed, use size=%u\n",
-				 min_dgram_size);
+			dev_dbg(&dev->intf->dev, "GET_MAX_DATAGRAM_SIZE failed, use size=%u\n",
+				min_dgram_size);
 		} else {
 			ctx->max_datagram_size =
 				le16_to_cpu(max_datagram_size);
@@ -275,7 +274,7 @@ static u8 cdc_ncm_setup(struct usbnet *dev)
 						iface_no, &max_datagram_size,
 						2);
 				if (err < 0)
-					pr_debug("SET_MAX_DGRAM_SIZE failed\n");
+					dev_dbg(&dev->intf->dev, "SET_MAX_DGRAM_SIZE failed\n");
 			}
 		}
 	}
@@ -867,6 +866,7 @@ error:
 /* verify NTB header and return offset of first NDP, or negative error */
 int cdc_ncm_rx_verify_nth16(struct cdc_ncm_ctx *ctx, struct sk_buff *skb_in)
 {
+	struct usbnet *dev = netdev_priv(skb_in->dev);
 	struct usb_cdc_ncm_nth16 *nth16;
 	int len;
 	int ret = -EINVAL;
@@ -876,7 +876,7 @@ int cdc_ncm_rx_verify_nth16(struct cdc_ncm_ctx *ctx, struct sk_buff *skb_in)
 
 	if (skb_in->len < (sizeof(struct usb_cdc_ncm_nth16) +
 					sizeof(struct usb_cdc_ncm_ndp16))) {
-		pr_debug("frame too short\n");
+		netif_dbg(dev, rx_err, dev->net, "frame too short\n");
 		goto error;
 	}
 
@@ -890,16 +890,18 @@ int cdc_ncm_rx_verify_nth16(struct cdc_ncm_ctx *ctx, struct sk_buff *skb_in)
 
 	len = le16_to_cpu(nth16->wBlockLength);
 	if (len > ctx->rx_max) {
-		pr_debug("unsupported NTB block length %u/%u\n", len,
-								ctx->rx_max);
+		netif_dbg(dev, rx_err, dev->net,
+			  "unsupported NTB block length %u/%u\n", len,
+			  ctx->rx_max);
 		goto error;
 	}
 
 	if ((ctx->rx_seq + 1) != le16_to_cpu(nth16->wSequence) &&
-		(ctx->rx_seq || le16_to_cpu(nth16->wSequence)) &&
-		!((ctx->rx_seq == 0xffff) && !le16_to_cpu(nth16->wSequence))) {
-		pr_debug("sequence number glitch prev=%d curr=%d\n",
-				ctx->rx_seq, le16_to_cpu(nth16->wSequence));
+	    (ctx->rx_seq || le16_to_cpu(nth16->wSequence)) &&
+	    !((ctx->rx_seq == 0xffff) && !le16_to_cpu(nth16->wSequence))) {
+		netif_dbg(dev, rx_err, dev->net,
+			  "sequence number glitch prev=%d curr=%d\n",
+			  ctx->rx_seq, le16_to_cpu(nth16->wSequence));
 	}
 	ctx->rx_seq = le16_to_cpu(nth16->wSequence);
 
@@ -912,18 +914,20 @@ EXPORT_SYMBOL_GPL(cdc_ncm_rx_verify_nth16);
 /* verify NDP header and return number of datagrams, or negative error */
 int cdc_ncm_rx_verify_ndp16(struct sk_buff *skb_in, int ndpoffset)
 {
+	struct usbnet *dev = netdev_priv(skb_in->dev);
 	struct usb_cdc_ncm_ndp16 *ndp16;
 	int ret = -EINVAL;
 
 	if ((ndpoffset + sizeof(struct usb_cdc_ncm_ndp16)) > skb_in->len) {
-		pr_debug("invalid NDP offset  <%u>\n", ndpoffset);
+		netif_dbg(dev, rx_err, dev->net, "invalid NDP offset  <%u>\n",
+			  ndpoffset);
 		goto error;
 	}
 	ndp16 = (struct usb_cdc_ncm_ndp16 *)(skb_in->data + ndpoffset);
 
 	if (le16_to_cpu(ndp16->wLength) < USB_CDC_NCM_NDP16_LENGTH_MIN) {
-		pr_debug("invalid DPT16 length <%u>\n",
-			 le16_to_cpu(ndp16->wLength));
+		netif_dbg(dev, rx_err, dev->net, "invalid DPT16 length <%u>\n",
+			  le16_to_cpu(ndp16->wLength));
 		goto error;
 	}
 
@@ -932,9 +936,9 @@ int cdc_ncm_rx_verify_ndp16(struct sk_buff *skb_in, int ndpoffset)
 					sizeof(struct usb_cdc_ncm_dpe16));
 	ret--; /* we process NDP entries except for the last one */
 
-	if ((sizeof(struct usb_cdc_ncm_ndp16) + ret * (sizeof(struct usb_cdc_ncm_dpe16))) >
-								skb_in->len) {
-		pr_debug("Invalid nframes = %d\n", ret);
+	if ((sizeof(struct usb_cdc_ncm_ndp16) +
+	     ret * (sizeof(struct usb_cdc_ncm_dpe16))) > skb_in->len) {
+		netif_dbg(dev, rx_err, dev->net, "Invalid nframes = %d\n", ret);
 		ret = -EINVAL;
 	}
 
@@ -991,9 +995,9 @@ next_ndp:
 		/* sanity checking */
 		if (((offset + len) > skb_in->len) ||
 				(len > ctx->rx_max) || (len < ETH_HLEN)) {
-			pr_debug("invalid frame detected (ignored)"
-					"offset[%u]=%u, length=%u, skb=%p\n",
-					x, offset, len, skb_in);
+			netif_dbg(dev, rx_err, dev->net,
+				  "invalid frame detected (ignored) offset[%u]=%u, length=%u, skb=%p\n",
+				  x, offset, len, skb_in);
 			if (!x)
 				goto err_ndp;
 			break;
@@ -1031,17 +1035,13 @@ cdc_ncm_speed_change(struct usbnet *dev,
 	 * device speed. Do print it instead.
 	 */
 	if ((tx_speed > 1000000) && (rx_speed > 1000000)) {
-		printk(KERN_INFO KBUILD_MODNAME
-		       ": %s: %u mbit/s downlink "
-		       "%u mbit/s uplink\n",
-		       dev->net->name,
+		netif_info(dev, link, dev->net,
+		       "%u mbit/s downlink %u mbit/s uplink\n",
 		       (unsigned int)(rx_speed / 1000000U),
 		       (unsigned int)(tx_speed / 1000000U));
 	} else {
-		printk(KERN_INFO KBUILD_MODNAME
-		       ": %s: %u kbit/s downlink "
-		       "%u kbit/s uplink\n",
-		       dev->net->name,
+		netif_info(dev, link, dev->net,
+		       "%u kbit/s downlink %u kbit/s uplink\n",
 		       (unsigned int)(rx_speed / 1000U),
 		       (unsigned int)(tx_speed / 1000U));
 	}
@@ -1074,11 +1074,9 @@ static void cdc_ncm_status(struct usbnet *dev, struct urb *urb)
 		 * sent by device after USB_CDC_NOTIFY_SPEED_CHANGE.
 		 */
 		ctx->connected = le16_to_cpu(event->wValue);
-
-		printk(KERN_INFO KBUILD_MODNAME ": %s: network connection:"
-		       " %sconnected\n",
-		       dev->net->name, ctx->connected ? "" : "dis");
-
+		netif_info(dev, link, dev->net,
+			   "network connection: %sconnected\n",
+			   ctx->connected ? "" : "dis");
 		usbnet_link_change(dev, ctx->connected, 0);
 		break;
 
-- 
cgit 


From 5448d75f71b2966df0f0da71b9d08eeb2811a80b Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:55 +0100
Subject: net: cdc_ncm: log signatures in hex
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

These signatures are well known bit patterns, mostly made up
of ascii characters.  Mentally parsing works best if they
are printed in hex.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 73faf05209b3..d49e4c5b292a 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -883,8 +883,9 @@ int cdc_ncm_rx_verify_nth16(struct cdc_ncm_ctx *ctx, struct sk_buff *skb_in)
 	nth16 = (struct usb_cdc_ncm_nth16 *)skb_in->data;
 
 	if (le32_to_cpu(nth16->dwSignature) != USB_CDC_NCM_NTH16_SIGN) {
-		pr_debug("invalid NTH16 signature <%u>\n",
-					le32_to_cpu(nth16->dwSignature));
+		netif_dbg(dev, rx_err, dev->net,
+			  "invalid NTH16 signature <%#010x>\n",
+			  le32_to_cpu(nth16->dwSignature));
 		goto error;
 	}
 
@@ -972,8 +973,9 @@ next_ndp:
 	ndp16 = (struct usb_cdc_ncm_ndp16 *)(skb_in->data + ndpoffset);
 
 	if (le32_to_cpu(ndp16->dwSignature) != USB_CDC_NCM_NDP16_NOCRC_SIGN) {
-		pr_debug("invalid DPT16 signature <%u>\n",
-			 le32_to_cpu(ndp16->dwSignature));
+		netif_dbg(dev, rx_err, dev->net,
+			  "invalid DPT16 signature <%#010x>\n",
+			  le32_to_cpu(ndp16->dwSignature));
 		goto err_ndp;
 	}
 	dpe16 = ndp16->dpe16;
-- 
cgit 


From 986e10d6718704fa96c8e59921727358917161ec Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:56 +0100
Subject: net: cdc_ncm: endian convert constants instead of variables
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Converting the constants used in these comparisons at build
time instead of converting the variables for every received
frame at run time.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index d49e4c5b292a..83e6d5ba962a 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -882,7 +882,7 @@ int cdc_ncm_rx_verify_nth16(struct cdc_ncm_ctx *ctx, struct sk_buff *skb_in)
 
 	nth16 = (struct usb_cdc_ncm_nth16 *)skb_in->data;
 
-	if (le32_to_cpu(nth16->dwSignature) != USB_CDC_NCM_NTH16_SIGN) {
+	if (nth16->dwSignature != cpu_to_le32(USB_CDC_NCM_NTH16_SIGN)) {
 		netif_dbg(dev, rx_err, dev->net,
 			  "invalid NTH16 signature <%#010x>\n",
 			  le32_to_cpu(nth16->dwSignature));
@@ -972,7 +972,7 @@ next_ndp:
 
 	ndp16 = (struct usb_cdc_ncm_ndp16 *)(skb_in->data + ndpoffset);
 
-	if (le32_to_cpu(ndp16->dwSignature) != USB_CDC_NCM_NDP16_NOCRC_SIGN) {
+	if (ndp16->dwSignature != cpu_to_le32(USB_CDC_NCM_NDP16_NOCRC_SIGN)) {
 		netif_dbg(dev, rx_err, dev->net,
 			  "invalid DPT16 signature <%#010x>\n",
 			  le32_to_cpu(ndp16->dwSignature));
-- 
cgit 


From 6dd13e83ce37f716e36085cb8b58779da1e98f6d Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:57 +0100
Subject: net: cdc_ncm: drop "extern" from header declarations
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/usb/cdc_ncm.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/linux/usb/cdc_ncm.h b/include/linux/usb/cdc_ncm.h
index cad54ad4ad12..2300f7492927 100644
--- a/include/linux/usb/cdc_ncm.h
+++ b/include/linux/usb/cdc_ncm.h
@@ -119,11 +119,11 @@ struct cdc_ncm_ctx {
 	u16 connected;
 };
 
-extern u8 cdc_ncm_select_altsetting(struct usbnet *dev, struct usb_interface *intf);
-extern int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_altsetting);
-extern void cdc_ncm_unbind(struct usbnet *dev, struct usb_interface *intf);
-extern struct sk_buff *cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign);
-extern int cdc_ncm_rx_verify_nth16(struct cdc_ncm_ctx *ctx, struct sk_buff *skb_in);
-extern int cdc_ncm_rx_verify_ndp16(struct sk_buff *skb_in, int ndpoffset);
+u8 cdc_ncm_select_altsetting(struct usbnet *dev, struct usb_interface *intf);
+int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_altsetting);
+void cdc_ncm_unbind(struct usbnet *dev, struct usb_interface *intf);
+struct sk_buff *cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign);
+int cdc_ncm_rx_verify_nth16(struct cdc_ncm_ctx *ctx, struct sk_buff *skb_in);
+int cdc_ncm_rx_verify_ndp16(struct sk_buff *skb_in, int ndpoffset);
 
 #endif /* __LINUX_USB_CDC_NCM_H */
-- 
cgit 


From 47175e5f283f8c78ff325edde0aec2018ce607e5 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:58 +0100
Subject: net: cdc_ncm: refactoring cdc_ncm_setup
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Rewriting the "set max datagram" part of dc_ncm_setup to
separate the selection and validatation of the size from
the code which optionally informs the device of this
value.  This ensures that we use the correct value
regardless of device support for the get and set commands.

Removing some of the many indent levels while doing this
to make the code more readable.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c | 108 +++++++++++++++++++---------------------------
 1 file changed, 44 insertions(+), 64 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 83e6d5ba962a..62dcb2e11e0b 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -76,8 +76,7 @@ static u8 cdc_ncm_setup(struct usbnet *dev)
 	int err;
 	int eth_hlen;
 	u16 ntb_fmt_supported;
-	u32 min_dgram_size;
-	u32 min_hdr_size;
+	__le16 max_datagram_size;
 
 	iface_no = ctx->control->cur_altsetting->desc.bInterfaceNumber;
 
@@ -101,20 +100,29 @@ static u8 cdc_ncm_setup(struct usbnet *dev)
 	ctx->tx_max_datagrams = le16_to_cpu(ncm_parm.wNtbOutMaxDatagrams);
 	ntb_fmt_supported = le16_to_cpu(ncm_parm.bmNtbFormatsSupported);
 
-	eth_hlen = ETH_HLEN;
-	min_dgram_size = CDC_NCM_MIN_DATAGRAM_SIZE;
-	min_hdr_size = CDC_NCM_MIN_HDR_SIZE;
-	if (ctx->mbim_desc != NULL) {
-		flags = ctx->mbim_desc->bmNetworkCapabilities;
+	/* there are some minor differences in NCM and MBIM defaults */
+	if (cdc_ncm_comm_intf_is_mbim(ctx->control->cur_altsetting)) {
+		if (!ctx->mbim_desc)
+			return -EINVAL;
 		eth_hlen = 0;
-		min_dgram_size = CDC_MBIM_MIN_DATAGRAM_SIZE;
-		min_hdr_size = 0;
-	} else if (ctx->func_desc != NULL) {
-		flags = ctx->func_desc->bmNetworkCapabilities;
+		flags = ctx->mbim_desc->bmNetworkCapabilities;
+		ctx->max_datagram_size = le16_to_cpu(ctx->mbim_desc->wMaxSegmentSize);
+		if (ctx->max_datagram_size < CDC_MBIM_MIN_DATAGRAM_SIZE)
+			ctx->max_datagram_size = CDC_MBIM_MIN_DATAGRAM_SIZE;
 	} else {
-		flags = 0;
+		if (!ctx->func_desc)
+			return -EINVAL;
+		eth_hlen = ETH_HLEN;
+		flags = ctx->func_desc->bmNetworkCapabilities;
+		ctx->max_datagram_size = le16_to_cpu(ctx->ether_desc->wMaxSegmentSize);
+		if (ctx->max_datagram_size < CDC_NCM_MIN_DATAGRAM_SIZE)
+			ctx->max_datagram_size = CDC_NCM_MIN_DATAGRAM_SIZE;
 	}
 
+	/* common absolute max for NCM and MBIM */
+	if (ctx->max_datagram_size > CDC_NCM_MAX_DATAGRAM_SIZE)
+		ctx->max_datagram_size = CDC_NCM_MAX_DATAGRAM_SIZE;
+
 	dev_dbg(&dev->intf->dev,
 		"dwNtbInMaxSize=%u dwNtbOutMaxSize=%u wNdpOutPayloadRemainder=%u wNdpOutDivisor=%u wNdpOutAlignment=%u wNtbOutMaxDatagrams=%u flags=0x%x\n",
 		ctx->rx_max, ctx->tx_max, ctx->tx_remainder, ctx->tx_modulus,
@@ -151,8 +159,7 @@ static u8 cdc_ncm_setup(struct usbnet *dev)
 	}
 
 	/* verify maximum size of transmitted NTB in bytes */
-	if ((ctx->tx_max <
-	    (min_hdr_size + min_dgram_size)) ||
+	if ((ctx->tx_max < (CDC_NCM_MIN_HDR_SIZE + ctx->max_datagram_size)) ||
 	    (ctx->tx_max > CDC_NCM_NTB_MAX_SIZE_TX)) {
 		dev_dbg(&dev->intf->dev, "Using default maximum transmit length=%d\n",
 			CDC_NCM_NTB_MAX_SIZE_TX);
@@ -229,60 +236,33 @@ static u8 cdc_ncm_setup(struct usbnet *dev)
 			dev_dbg(&dev->intf->dev, "Setting NTB format to 16-bit failed\n");
 	}
 
-	ctx->max_datagram_size = min_dgram_size;
+	/* inform the device about the selected Max Datagram Size */
+	if (!(flags & USB_CDC_NCM_NCAP_MAX_DATAGRAM_SIZE))
+		goto out;
 
-	/* set Max Datagram Size (MTU) */
-	if (flags & USB_CDC_NCM_NCAP_MAX_DATAGRAM_SIZE) {
-		__le16 max_datagram_size;
-		u16 eth_max_sz;
-		if (ctx->ether_desc != NULL)
-			eth_max_sz = le16_to_cpu(ctx->ether_desc->wMaxSegmentSize);
-		else if (ctx->mbim_desc != NULL)
-			eth_max_sz = le16_to_cpu(ctx->mbim_desc->wMaxSegmentSize);
-		else
-			goto max_dgram_err;
-
-		err = usbnet_read_cmd(dev, USB_CDC_GET_MAX_DATAGRAM_SIZE,
-				      USB_TYPE_CLASS | USB_DIR_IN
-				      | USB_RECIP_INTERFACE,
-				      0, iface_no, &max_datagram_size, 2);
-		if (err < 0) {
-			dev_dbg(&dev->intf->dev, "GET_MAX_DATAGRAM_SIZE failed, use size=%u\n",
-				min_dgram_size);
-		} else {
-			ctx->max_datagram_size =
-				le16_to_cpu(max_datagram_size);
-			/* Check Eth descriptor value */
-			if (ctx->max_datagram_size > eth_max_sz)
-					ctx->max_datagram_size = eth_max_sz;
-
-			if (ctx->max_datagram_size > CDC_NCM_MAX_DATAGRAM_SIZE)
-				ctx->max_datagram_size = CDC_NCM_MAX_DATAGRAM_SIZE;
-
-			if (ctx->max_datagram_size < min_dgram_size)
-				ctx->max_datagram_size = min_dgram_size;
-
-			/* if value changed, update device */
-			if (ctx->max_datagram_size !=
-					le16_to_cpu(max_datagram_size)) {
-				max_datagram_size = cpu_to_le16(ctx->max_datagram_size);
-				err = usbnet_write_cmd(dev,
-						USB_CDC_SET_MAX_DATAGRAM_SIZE,
-						USB_TYPE_CLASS | USB_DIR_OUT
-						 | USB_RECIP_INTERFACE,
-						0,
-						iface_no, &max_datagram_size,
-						2);
-				if (err < 0)
-					dev_dbg(&dev->intf->dev, "SET_MAX_DGRAM_SIZE failed\n");
-			}
-		}
+	/* read current mtu value from device */
+	err = usbnet_read_cmd(dev, USB_CDC_GET_MAX_DATAGRAM_SIZE,
+			      USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE,
+			      0, iface_no, &max_datagram_size, 2);
+	if (err < 0) {
+		dev_dbg(&dev->intf->dev, "GET_MAX_DATAGRAM_SIZE failed\n");
+		goto out;
 	}
 
-max_dgram_err:
-	if (dev->net->mtu != (ctx->max_datagram_size - eth_hlen))
-		dev->net->mtu = ctx->max_datagram_size - eth_hlen;
+	if (le16_to_cpu(max_datagram_size) == ctx->max_datagram_size)
+		goto out;
+
+	max_datagram_size = cpu_to_le16(ctx->max_datagram_size);
+	err = usbnet_write_cmd(dev, USB_CDC_SET_MAX_DATAGRAM_SIZE,
+			       USB_TYPE_CLASS | USB_DIR_OUT | USB_RECIP_INTERFACE,
+			       0, iface_no, &max_datagram_size, 2);
+	if (err < 0)
+		dev_dbg(&dev->intf->dev, "SET_MAX_DATAGRAM_SIZE failed\n");
 
+out:
+	/* set MTU to max supported by the device if necessary */
+	if (dev->net->mtu > ctx->max_datagram_size - eth_hlen)
+		dev->net->mtu = ctx->max_datagram_size - eth_hlen;
 	return 0;
 }
 
-- 
cgit 


From 59ede3168a0b3fe02f82a7bed52432f18dbb1070 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:16:59 +0100
Subject: net: cdc_ncm: return proper error if setup fails
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Most setup errors are ignored to ensure maximum firmware
compatibilty.  But GET_NTB_PARAMETERS and the functional
descriptors are required.  Use proper error codes and
log level if these fail.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 62dcb2e11e0b..f168bc8c1d38 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -86,8 +86,8 @@ static u8 cdc_ncm_setup(struct usbnet *dev)
 			      0, iface_no, &ncm_parm,
 			      sizeof(ncm_parm));
 	if (err < 0) {
-		dev_dbg(&dev->intf->dev, "failed GET_NTB_PARAMETERS\n");
-		return 1;
+		dev_err(&dev->intf->dev, "failed GET_NTB_PARAMETERS\n");
+		return err; /* GET_NTB_PARAMETERS is required */
 	}
 
 	/* read correct set of parameters according to device mode */
-- 
cgit 


From 296e81f84c7ef7272cca1636386d55acc1af3238 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:17:00 +0100
Subject: net: cdc_ncm: improve bind error debug messages
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Make it a bit easier for users to figure out what goes
wrong when bind fails.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c | 36 ++++++++++++++++++++++++++----------
 1 file changed, 26 insertions(+), 10 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index f168bc8c1d38..4531f38fc0e5 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -371,8 +371,10 @@ int cdc_ncm_bind_common(struct usbnet *dev, struct usb_interface *intf, u8 data_
 			union_desc = (const struct usb_cdc_union_desc *)buf;
 			/* the master must be the interface we are probing */
 			if (intf->cur_altsetting->desc.bInterfaceNumber !=
-			    union_desc->bMasterInterface0)
+			    union_desc->bMasterInterface0) {
+				dev_dbg(&intf->dev, "bogus CDC Union\n");
 				goto error;
+			}
 			ctx->data = usb_ifnum_to_if(dev->udev,
 						    union_desc->bSlaveInterface0);
 			break;
@@ -416,45 +418,59 @@ advance:
 	}
 
 	/* check if we got everything */
-	if (!ctx->data || (!ctx->mbim_desc && !ctx->ether_desc))
+	if (!ctx->data || (!ctx->mbim_desc && !ctx->ether_desc)) {
+		dev_dbg(&intf->dev, "CDC descriptors missing\n");
 		goto error;
+	}
 
 	/* claim data interface, if different from control */
 	if (ctx->data != ctx->control) {
 		temp = usb_driver_claim_interface(driver, ctx->data, dev);
-		if (temp)
+		if (temp) {
+			dev_dbg(&intf->dev, "failed to claim data intf\n");
 			goto error;
+		}
 	}
 
 	iface_no = ctx->data->cur_altsetting->desc.bInterfaceNumber;
 
 	/* reset data interface */
 	temp = usb_set_interface(dev->udev, iface_no, 0);
-	if (temp)
+	if (temp) {
+		dev_dbg(&intf->dev, "set interface failed\n");
 		goto error2;
+	}
 
 	/* configure data interface */
 	temp = usb_set_interface(dev->udev, iface_no, data_altsetting);
-	if (temp)
+	if (temp) {
+		dev_dbg(&intf->dev, "set interface failed\n");
 		goto error2;
+	}
 
 	cdc_ncm_find_endpoints(dev, ctx->data);
 	cdc_ncm_find_endpoints(dev, ctx->control);
-	if (!dev->in || !dev->out || !dev->status)
+	if (!dev->in || !dev->out || !dev->status) {
+		dev_dbg(&intf->dev, "failed to collect endpoints\n");
 		goto error2;
+	}
 
 	/* initialize data interface */
-	if (cdc_ncm_setup(dev))
+	if (cdc_ncm_setup(dev))	{
+		dev_dbg(&intf->dev, "cdc_ncm_setup() failed\n");
 		goto error2;
+	}
 
 	usb_set_intfdata(ctx->data, dev);
 	usb_set_intfdata(ctx->control, dev);
 
 	if (ctx->ether_desc) {
 		temp = usbnet_get_ethernet_addr(dev, ctx->ether_desc->iMACAddress);
-		if (temp)
+		if (temp) {
+			dev_dbg(&intf->dev, "failed to get mac address\n");
 			goto error2;
-		dev_info(&dev->udev->dev, "MAC-Address: %pM\n", dev->net->dev_addr);
+		}
+		dev_info(&intf->dev, "MAC-Address: %pM\n", dev->net->dev_addr);
 	}
 
 	/* usbnet use these values for sizing tx/rx queues */
@@ -471,7 +487,7 @@ error2:
 error:
 	cdc_ncm_free((struct cdc_ncm_ctx *)dev->data[0]);
 	dev->data[0] = 0;
-	dev_info(&dev->udev->dev, "bind() failure\n");
+	dev_info(&intf->dev, "bind() failure\n");
 	return -ENODEV;
 }
 EXPORT_SYMBOL_GPL(cdc_ncm_bind_common);
-- 
cgit 


From a6fe67087d7cb916e41b4ad1b3a57c91150edb88 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 11:17:01 +0100
Subject: net: cdc_ncm: no not set tx_max higher than the device supports
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

There are MBIM devices out there reporting

  dwNtbInMaxSize=2048 dwNtbOutMaxSize=2048

and since the spec require a datagram max size of at least
2048, this means that a full sized datagram will never fit.

Still, sending larger NTBs than the device supports is not
going to help.  We do not have any other options than either
 a) refusing to bindi, or
 b) respect the insanely low value.

Alternative b will at least make these devices work, so go
for it.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 4531f38fc0e5..11c703337577 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -159,8 +159,7 @@ static u8 cdc_ncm_setup(struct usbnet *dev)
 	}
 
 	/* verify maximum size of transmitted NTB in bytes */
-	if ((ctx->tx_max < (CDC_NCM_MIN_HDR_SIZE + ctx->max_datagram_size)) ||
-	    (ctx->tx_max > CDC_NCM_NTB_MAX_SIZE_TX)) {
+	if (ctx->tx_max > CDC_NCM_NTB_MAX_SIZE_TX) {
 		dev_dbg(&dev->intf->dev, "Using default maximum transmit length=%d\n",
 			CDC_NCM_NTB_MAX_SIZE_TX);
 		ctx->tx_max = CDC_NCM_NTB_MAX_SIZE_TX;
-- 
cgit 


From e139862eeec985d7139b11b09deeb9a32e3f3af2 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 1 Nov 2013 13:18:44 +0300
Subject: bonding: bond_get_size() returns wrong size

There is an extra semi-colon so bond_get_size() doesn't return the
correct value.

Fixes: ec76aa49855f ('bonding: add Netlink support active_slave option')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Veaceslav Falico <vfalico@redhat.com>
Reviewed-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_netlink.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/bonding/bond_netlink.c b/drivers/net/bonding/bond_netlink.c
index 7661261de2f0..40e7b1cb4aea 100644
--- a/drivers/net/bonding/bond_netlink.c
+++ b/drivers/net/bonding/bond_netlink.c
@@ -82,8 +82,8 @@ static int bond_newlink(struct net *src_net, struct net_device *bond_dev,
 
 static size_t bond_get_size(const struct net_device *bond_dev)
 {
-	return nla_total_size(sizeof(u8));	/* IFLA_BOND_MODE */
-		+ nla_total_size(sizeof(u32));	/* IFLA_BOND_ACTIVE_SLAVE */
+	return nla_total_size(sizeof(u8)) +	/* IFLA_BOND_MODE */
+		nla_total_size(sizeof(u32));	/* IFLA_BOND_ACTIVE_SLAVE */
 }
 
 static int bond_fill_info(struct sk_buff *skb,
-- 
cgit 


From 6f092343855a71e03b8d209815d8c45bf3a27fcd Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Fri, 1 Nov 2013 15:01:10 +0800
Subject: net: flow_dissector: fail on evil iph->ihl

We don't validate iph->ihl which may lead a dead loop if we meet a IPIP
skb whose iph->ihl is zero. Fix this by failing immediately when iph->ihl
is evil (less than 5).

This issue were introduced by commit ec5efe7946280d1e84603389a1030ccec0a767ae
(rps: support IPIP encapsulation).

Cc: Eric Dumazet <edumazet@google.com>
Cc: Petr Matousek <pmatouse@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/flow_dissector.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index 8d7d0dd72db2..143b6fdb9647 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -40,7 +40,7 @@ again:
 		struct iphdr _iph;
 ip:
 		iph = skb_header_pointer(skb, nhoff, sizeof(_iph), &_iph);
-		if (!iph)
+		if (!iph || iph->ihl < 5)
 			return false;
 
 		if (ip_is_fragment(iph))
-- 
cgit 


From 00582bf8e7ed30aadbd935e430143fa18f316f8d Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 30 Oct 2013 05:20:00 +0000
Subject: iio: at91: fix error return code in at91_adc_probe()

Fix to return -ENODEV instead of 0 if non-TSMR adc don't
support, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Josh Wu <josh.wu@atmel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/at91_adc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index 17df74908db1..5b1aa027c034 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -1047,6 +1047,7 @@ static int at91_adc_probe(struct platform_device *pdev)
 	} else {
 		if (!st->caps->has_tsmr) {
 			dev_err(&pdev->dev, "We don't support non-TSMR adc\n");
+			ret = -ENODEV;
 			goto error_disable_adc_clk;
 		}
 
-- 
cgit 


From 3d378d3fd82a759d59c60d89b4559bf325d7e668 Mon Sep 17 00:00:00 2001
From: Tim Gardner <tim.gardner@canonical.com>
Date: Sat, 2 Nov 2013 12:50:34 -0500
Subject: cifs: Make big endian multiplex ID sequences monotonic on the wire

The multiplex identifier (MID) in the SMB header is only
ever used by the client, in conjunction with PID, to match responses
from the server. As such, the endianess of the MID is not important.
However, When tracing packet sequences on the wire, protocol analyzers
such as wireshark display MID as little endian. It is much more informative
for the on-the-wire MID sequences to match debug information emitted by the
CIFS driver.  Therefore, one should write and read MID in the SMB header
assuming it is always little endian.

Observed from wireshark during the protocol negotiation
and session setup:

        Multiplex ID: 256
        Multiplex ID: 256
        Multiplex ID: 512
        Multiplex ID: 512
        Multiplex ID: 768
        Multiplex ID: 768

After this patch on-the-wire MID values begin at 1 and increase monotonically.

Introduce get_next_mid64() for the internal consumers that use the full 64 bit
multiplex identifier.

Introduce the helpers get_mid() and compare_mid() to make the endian
translation clear.

Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Tim Gardner <timg@tpi.com>
Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/cifsglob.h      | 25 ++++++++++++++++++++++++-
 fs/cifs/cifspdu.h       |  2 +-
 fs/cifs/misc.c          | 10 ++++++----
 fs/cifs/smb1ops.c       |  4 ++--
 fs/cifs/smb2transport.c |  2 +-
 fs/cifs/transport.c     |  2 +-
 6 files changed, 35 insertions(+), 10 deletions(-)

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 06e8947fc370..670da1e55be7 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -622,11 +622,34 @@ set_credits(struct TCP_Server_Info *server, const int val)
 }
 
 static inline __u64
-get_next_mid(struct TCP_Server_Info *server)
+get_next_mid64(struct TCP_Server_Info *server)
 {
 	return server->ops->get_next_mid(server);
 }
 
+static inline __le16
+get_next_mid(struct TCP_Server_Info *server)
+{
+	__u16 mid = get_next_mid64(server);
+	/*
+	 * The value in the SMB header should be little endian for easy
+	 * on-the-wire decoding.
+	 */
+	return cpu_to_le16(mid);
+}
+
+static inline __u16
+get_mid(const struct smb_hdr *smb)
+{
+	return le16_to_cpu(smb->Mid);
+}
+
+static inline bool
+compare_mid(__u16 mid, const struct smb_hdr *smb)
+{
+	return mid == le16_to_cpu(smb->Mid);
+}
+
 /*
  * When the server supports very large reads and writes via POSIX extensions,
  * we can allow up to 2^24-1, minus the size of a READ/WRITE_AND_X header, not
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index d40bd77a2392..f80f98f5ef9c 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -428,7 +428,7 @@ struct smb_hdr {
 	__u16 Tid;
 	__le16 Pid;
 	__u16 Uid;
-	__u16 Mid;
+	__le16 Mid;
 	__u8 WordCount;
 } __attribute__((packed));
 
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 298e31e3bdc6..2f9f3790679d 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -295,7 +295,8 @@ check_smb_hdr(struct smb_hdr *smb)
 	if (smb->Command == SMB_COM_LOCKING_ANDX)
 		return 0;
 
-	cifs_dbg(VFS, "Server sent request, not response. mid=%u\n", smb->Mid);
+	cifs_dbg(VFS, "Server sent request, not response. mid=%u\n",
+		 get_mid(smb));
 	return 1;
 }
 
@@ -351,6 +352,7 @@ checkSMB(char *buf, unsigned int total_read)
 	}
 
 	if (4 + rfclen != clc_len) {
+		__u16 mid = get_mid(smb);
 		/* check if bcc wrapped around for large read responses */
 		if ((rfclen > 64 * 1024) && (rfclen > clc_len)) {
 			/* check if lengths match mod 64K */
@@ -358,11 +360,11 @@ checkSMB(char *buf, unsigned int total_read)
 				return 0; /* bcc wrapped */
 		}
 		cifs_dbg(FYI, "Calculated size %u vs length %u mismatch for mid=%u\n",
-			 clc_len, 4 + rfclen, smb->Mid);
+			 clc_len, 4 + rfclen, mid);
 
 		if (4 + rfclen < clc_len) {
 			cifs_dbg(VFS, "RFC1001 size %u smaller than SMB for mid=%u\n",
-				 rfclen, smb->Mid);
+				 rfclen, mid);
 			return -EIO;
 		} else if (rfclen > clc_len + 512) {
 			/*
@@ -375,7 +377,7 @@ checkSMB(char *buf, unsigned int total_read)
 			 * data to 512 bytes.
 			 */
 			cifs_dbg(VFS, "RFC1001 size %u more than 512 bytes larger than SMB for mid=%u\n",
-				 rfclen, smb->Mid);
+				 rfclen, mid);
 			return -EIO;
 		}
 	}
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index 8233b174de3d..09ef8f322c2a 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -67,7 +67,7 @@ send_nt_cancel(struct TCP_Server_Info *server, void *buf,
 	mutex_unlock(&server->srv_mutex);
 
 	cifs_dbg(FYI, "issued NT_CANCEL for mid %u, rc = %d\n",
-		 in_buf->Mid, rc);
+		 get_mid(in_buf), rc);
 
 	return rc;
 }
@@ -101,7 +101,7 @@ cifs_find_mid(struct TCP_Server_Info *server, char *buffer)
 
 	spin_lock(&GlobalMid_Lock);
 	list_for_each_entry(mid, &server->pending_mid_q, qhead) {
-		if (mid->mid == buf->Mid &&
+		if (compare_mid(mid->mid, buf) &&
 		    mid->mid_state == MID_REQUEST_SUBMITTED &&
 		    le16_to_cpu(mid->command) == buf->Command) {
 			spin_unlock(&GlobalMid_Lock);
diff --git a/fs/cifs/smb2transport.c b/fs/cifs/smb2transport.c
index 340abca3aa52..c523617eade2 100644
--- a/fs/cifs/smb2transport.c
+++ b/fs/cifs/smb2transport.c
@@ -466,7 +466,7 @@ smb2_verify_signature(struct smb_rqst *rqst, struct TCP_Server_Info *server)
 static inline void
 smb2_seq_num_into_buf(struct TCP_Server_Info *server, struct smb2_hdr *hdr)
 {
-	hdr->MessageId = get_next_mid(server);
+	hdr->MessageId = get_next_mid64(server);
 }
 
 static struct mid_q_entry *
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 800b938e4061..0ee6d249ef6f 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -58,7 +58,7 @@ AllocMidQEntry(const struct smb_hdr *smb_buffer, struct TCP_Server_Info *server)
 		return temp;
 	else {
 		memset(temp, 0, sizeof(struct mid_q_entry));
-		temp->mid = smb_buffer->Mid;	/* always LE */
+		temp->mid = get_mid(smb_buffer);
 		temp->pid = current->pid;
 		temp->command = cpu_to_le16(smb_buffer->Command);
 		cifs_dbg(FYI, "For smb_command %d\n", smb_buffer->Command);
-- 
cgit 


From 7f48558e6489d032b1584b0cc9ac4bb11072c034 Mon Sep 17 00:00:00 2001
From: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Date: Sat, 12 Oct 2013 10:06:03 -0500
Subject: cifs: Send a logoff request before removing a smb session

Send a smb session logoff request before removing smb session off of the list.
On a signed smb session, remvoing a session off of the list before sending
a logoff request results in server returning an error for lack of
smb signature.

Never seen an error during smb logoff, so as per MS-SMB2 3.2.5.1,
not sure how an error during logoff should be retried. So for now,
if a server returns an error to a logoff request, log the error and
remove the session off of the list.

Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/connect.c       | 25 ++++++++++++++++++++-----
 fs/cifs/smb2transport.c | 10 ++++++++--
 fs/cifs/transport.c     | 11 +++++++++--
 3 files changed, 37 insertions(+), 9 deletions(-)

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index a279ffc0bc29..62a55147400a 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -2242,6 +2242,8 @@ cifs_find_smb_ses(struct TCP_Server_Info *server, struct smb_vol *vol)
 
 	spin_lock(&cifs_tcp_ses_lock);
 	list_for_each_entry(ses, &server->smb_ses_list, smb_ses_list) {
+		if (ses->status == CifsExiting)
+			continue;
 		if (!match_session(ses, vol))
 			continue;
 		++ses->ses_count;
@@ -2255,24 +2257,37 @@ cifs_find_smb_ses(struct TCP_Server_Info *server, struct smb_vol *vol)
 static void
 cifs_put_smb_ses(struct cifs_ses *ses)
 {
-	unsigned int xid;
+	unsigned int rc, xid;
 	struct TCP_Server_Info *server = ses->server;
 
 	cifs_dbg(FYI, "%s: ses_count=%d\n", __func__, ses->ses_count);
+
 	spin_lock(&cifs_tcp_ses_lock);
+	if (ses->status == CifsExiting) {
+		spin_unlock(&cifs_tcp_ses_lock);
+		return;
+	}
 	if (--ses->ses_count > 0) {
 		spin_unlock(&cifs_tcp_ses_lock);
 		return;
 	}
-
-	list_del_init(&ses->smb_ses_list);
+	if (ses->status == CifsGood)
+		ses->status = CifsExiting;
 	spin_unlock(&cifs_tcp_ses_lock);
 
-	if (ses->status == CifsGood && server->ops->logoff) {
+	if (ses->status == CifsExiting && server->ops->logoff) {
 		xid = get_xid();
-		server->ops->logoff(xid, ses);
+		rc = server->ops->logoff(xid, ses);
+		if (rc)
+			cifs_dbg(VFS, "%s: Session Logoff failure rc=%d\n",
+				__func__, rc);
 		_free_xid(xid);
 	}
+
+	spin_lock(&cifs_tcp_ses_lock);
+	list_del_init(&ses->smb_ses_list);
+	spin_unlock(&cifs_tcp_ses_lock);
+
 	sesInfoFree(ses);
 	cifs_put_tcp_session(server);
 }
diff --git a/fs/cifs/smb2transport.c b/fs/cifs/smb2transport.c
index c523617eade2..59c748ce872f 100644
--- a/fs/cifs/smb2transport.c
+++ b/fs/cifs/smb2transport.c
@@ -516,13 +516,19 @@ smb2_get_mid_entry(struct cifs_ses *ses, struct smb2_hdr *buf,
 		return -EAGAIN;
 	}
 
-	if (ses->status != CifsGood) {
-		/* check if SMB2 session is bad because we are setting it up */
+	if (ses->status == CifsNew) {
 		if ((buf->Command != SMB2_SESSION_SETUP) &&
 		    (buf->Command != SMB2_NEGOTIATE))
 			return -EAGAIN;
 		/* else ok - we are setting up session */
 	}
+
+	if (ses->status == CifsExiting) {
+		if (buf->Command != SMB2_LOGOFF)
+			return -EAGAIN;
+		/* else ok - we are shutting down the session */
+	}
+
 	*mid = smb2_mid_entry_alloc(buf, ses->server);
 	if (*mid == NULL)
 		return -ENOMEM;
diff --git a/fs/cifs/transport.c b/fs/cifs/transport.c
index 0ee6d249ef6f..b37570952846 100644
--- a/fs/cifs/transport.c
+++ b/fs/cifs/transport.c
@@ -431,13 +431,20 @@ static int allocate_mid(struct cifs_ses *ses, struct smb_hdr *in_buf,
 		return -EAGAIN;
 	}
 
-	if (ses->status != CifsGood) {
-		/* check if SMB session is bad because we are setting it up */
+	if (ses->status == CifsNew) {
 		if ((in_buf->Command != SMB_COM_SESSION_SETUP_ANDX) &&
 			(in_buf->Command != SMB_COM_NEGOTIATE))
 			return -EAGAIN;
 		/* else ok - we are setting up session */
 	}
+
+	if (ses->status == CifsExiting) {
+		/* check if SMB session is bad because we are setting it up */
+		if (in_buf->Command != SMB_COM_LOGOFF_ANDX)
+			return -EAGAIN;
+		/* else ok - we are shutting down session */
+	}
+
 	*ppmidQ = AllocMidQEntry(in_buf, ses->server);
 	if (*ppmidQ == NULL)
 		return -ENOMEM;
-- 
cgit 


From 2167114c6ea6e76fd84e368bae5389d37dd156aa Mon Sep 17 00:00:00 2001
From: Steven French <smfrench@gmail.com>
Date: Wed, 9 Oct 2013 13:36:35 -0500
Subject: Query device characteristics at mount time from server on SMB2/3 not
 just on cifs mounts

Currently SMB2 and SMB3 mounts do not query the device information at mount time
from the server as is done for cifs.  These can be useful for debugging.
This is a minor patch, that extends the previous one (which added ability to
query file system attributes at mount time - this returns the device
characteristics - also via in /proc/fs/cifs/DebugData)

Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/smb2ops.c   |  5 ++++-
 fs/cifs/smb2pdu.c   | 31 +++++++++++++++++++++++--------
 fs/cifs/smb2proto.h |  2 +-
 3 files changed, 28 insertions(+), 10 deletions(-)

diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index a53e2053ae9d..79084d67f3fb 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -229,7 +229,10 @@ smb2_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
 	if (rc)
 		return;
 
-	SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid);
+	SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
+			FS_ATTRIBUTE_INFORMATION);
+	SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
+			FS_DEVICE_INFORMATION);
 	SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
 	return;
 }
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index df12cf8bd979..7887cf50e5fb 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -2358,17 +2358,27 @@ qfsinf_exit:
 
 int
 SMB2_QFS_attr(const unsigned int xid, struct cifs_tcon *tcon,
-	      u64 persistent_fid, u64 volatile_fid)
+	      u64 persistent_fid, u64 volatile_fid, int level)
 {
 	struct smb2_query_info_rsp *rsp = NULL;
 	struct kvec iov;
 	int rc = 0;
-	int resp_buftype;
+	int resp_buftype, max_len, min_len;
 	struct cifs_ses *ses = tcon->ses;
 	unsigned int rsp_len, offset;
 
-	rc = build_qfs_info_req(&iov, tcon, SMB_QUERY_FS_ATTRIBUTE_INFO,
-				sizeof(FILE_SYSTEM_ATTRIBUTE_INFO),
+	if (level == FS_DEVICE_INFORMATION) {
+		max_len = sizeof(FILE_SYSTEM_DEVICE_INFO);
+		min_len = sizeof(FILE_SYSTEM_DEVICE_INFO);
+	} else if (level == FS_ATTRIBUTE_INFORMATION) {
+		max_len = sizeof(FILE_SYSTEM_ATTRIBUTE_INFO);
+		min_len = MIN_FS_ATTR_INFO_SIZE;
+	} else {
+		cifs_dbg(FYI, "Invalid qfsinfo level %d", level);
+		return -EINVAL;
+	}
+
+	rc = build_qfs_info_req(&iov, tcon, level, max_len,
 				persistent_fid, volatile_fid);
 	if (rc)
 		return rc;
@@ -2382,12 +2392,17 @@ SMB2_QFS_attr(const unsigned int xid, struct cifs_tcon *tcon,
 
 	rsp_len = le32_to_cpu(rsp->OutputBufferLength);
 	offset = le16_to_cpu(rsp->OutputBufferOffset);
-	rc = validate_buf(offset, rsp_len, &rsp->hdr, MIN_FS_ATTR_INFO_SIZE);
-	if (!rc) {
+	rc = validate_buf(offset, rsp_len, &rsp->hdr, min_len);
+	if (rc)
+		goto qfsattr_exit;
+
+	if (level == FS_ATTRIBUTE_INFORMATION)
 		memcpy(&tcon->fsAttrInfo, 4 /* RFC1001 len */ + offset
 			+ (char *)&rsp->hdr, min_t(unsigned int,
-			rsp_len, sizeof(FILE_SYSTEM_ATTRIBUTE_INFO)));
-	}
+			rsp_len, max_len));
+	else if (level == FS_DEVICE_INFORMATION)
+		memcpy(&tcon->fsDevInfo, 4 /* RFC1001 len */ + offset
+			+ (char *)&rsp->hdr, sizeof(FILE_SYSTEM_DEVICE_INFO));
 
 qfsattr_exit:
 	free_rsp_buf(resp_buftype, iov.iov_base);
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index 68dc00d5fb12..313813e4c19b 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -151,7 +151,7 @@ extern int SMB2_QFS_info(const unsigned int xid, struct cifs_tcon *tcon,
 			 u64 persistent_file_id, u64 volatile_file_id,
 			 struct kstatfs *FSData);
 extern int SMB2_QFS_attr(const unsigned int xid, struct cifs_tcon *tcon,
-			 u64 persistent_file_id, u64 volatile_file_id);
+			 u64 persistent_file_id, u64 volatile_file_id, int lvl);
 extern int SMB2_lock(const unsigned int xid, struct cifs_tcon *tcon,
 		     const __u64 persist_fid, const __u64 volatile_fid,
 		     const __u32 pid, const __u64 length, const __u64 offset,
-- 
cgit 


From af6a12ea8d4bb39a87527835b943bde4215897e5 Mon Sep 17 00:00:00 2001
From: Steven French <smfrench@gmail.com>
Date: Wed, 9 Oct 2013 20:55:53 -0500
Subject: Query File System Alignment

In SMB3 it is now possible to query the file system
alignment info, and the preferred (for performance)
sector size and whether the underlying disk
has no seek penalty (like SSD).

Query this information at mount time for SMB3,
and make it visible in /proc/fs/cifs/DebugData
for debugging purposes.

This alignment information and preferred sector
size info will be helpful for the copy offload
patches to setup the right chunks in the CopyChunk
requests.   Presumably the knowledge that the
underlying disk is SSD could also help us
make better readahead and writebehind
decisions (something to look at in the future).

Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/cifsglob.h |  2 ++
 fs/cifs/smb2ops.c  | 44 +++++++++++++++++++++++++++++++++++++++++++-
 fs/cifs/smb2pdu.c  | 12 +++++++++++-
 fs/cifs/smb2pdu.h  | 22 ++++++++++++++++++++--
 4 files changed, 76 insertions(+), 4 deletions(-)

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 670da1e55be7..26b1c1dc93f6 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -853,6 +853,8 @@ struct cifs_tcon {
 	__u32 maximal_access;
 	__u32 vol_serial_number;
 	__le64 vol_create_time;
+	__u32 ss_flags;		/* sector size flags */
+	__u32 perf_sector_size; /* best sector size for perf */
 #endif /* CONFIG_CIFS_SMB2 */
 #ifdef CONFIG_CIFS_FSCACHE
 	u64 resource_id;		/* server resource id */
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 79084d67f3fb..25759c89619a 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -209,6 +209,36 @@ smb2_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *volume_info)
 	return rsize;
 }
 
+static void
+smb3_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
+{
+	int rc;
+	__le16 srch_path = 0; /* Null - open root of share */
+	u8 oplock = SMB2_OPLOCK_LEVEL_NONE;
+	struct cifs_open_parms oparms;
+	struct cifs_fid fid;
+
+	oparms.tcon = tcon;
+	oparms.desired_access = FILE_READ_ATTRIBUTES;
+	oparms.disposition = FILE_OPEN;
+	oparms.create_options = 0;
+	oparms.fid = &fid;
+	oparms.reconnect = false;
+
+	rc = SMB2_open(xid, &oparms, &srch_path, &oplock, NULL, NULL);
+	if (rc)
+		return;
+
+	SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
+			FS_ATTRIBUTE_INFORMATION);
+	SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
+			FS_DEVICE_INFORMATION);
+	SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
+			FS_SECTOR_SIZE_INFORMATION); /* SMB3 specific */
+	SMB2_close(xid, tcon, fid.persistent_fid, fid.volatile_fid);
+	return;
+}
+
 static void
 smb2_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
 {
@@ -332,7 +362,19 @@ smb2_dump_share_caps(struct seq_file *m, struct cifs_tcon *tcon)
 		seq_puts(m, " ASYMMETRIC,");
 	if (tcon->capabilities == 0)
 		seq_puts(m, " None");
+	if (tcon->ss_flags & SSINFO_FLAGS_ALIGNED_DEVICE)
+		seq_puts(m, " Aligned,");
+	if (tcon->ss_flags & SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE)
+		seq_puts(m, " Partition Aligned,");
+	if (tcon->ss_flags & SSINFO_FLAGS_NO_SEEK_PENALTY)
+		seq_puts(m, " SSD,");
+	if (tcon->ss_flags & SSINFO_FLAGS_TRIM_ENABLED)
+		seq_puts(m, " TRIM-support,");
+
 	seq_printf(m, "\tShare Flags: 0x%x", tcon->share_flags);
+	if (tcon->perf_sector_size)
+		seq_printf(m, "\tOptimal sector size: 0x%x",
+			   tcon->perf_sector_size);
 }
 
 static void
@@ -1048,7 +1090,7 @@ struct smb_version_operations smb30_operations = {
 	.logoff = SMB2_logoff,
 	.tree_connect = SMB2_tcon,
 	.tree_disconnect = SMB2_tdis,
-	.qfs_tcon = smb2_qfs_tcon,
+	.qfs_tcon = smb3_qfs_tcon,
 	.is_path_accessible = smb2_is_path_accessible,
 	.can_echo = smb2_can_echo,
 	.echo = SMB2_echo,
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 7887cf50e5fb..8ab05b0d6778 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -2373,8 +2373,11 @@ SMB2_QFS_attr(const unsigned int xid, struct cifs_tcon *tcon,
 	} else if (level == FS_ATTRIBUTE_INFORMATION) {
 		max_len = sizeof(FILE_SYSTEM_ATTRIBUTE_INFO);
 		min_len = MIN_FS_ATTR_INFO_SIZE;
+	} else if (level == FS_SECTOR_SIZE_INFORMATION) {
+		max_len = sizeof(struct smb3_fs_ss_info);
+		min_len = sizeof(struct smb3_fs_ss_info);
 	} else {
-		cifs_dbg(FYI, "Invalid qfsinfo level %d", level);
+		cifs_dbg(FYI, "Invalid qfsinfo level %d\n", level);
 		return -EINVAL;
 	}
 
@@ -2403,6 +2406,13 @@ SMB2_QFS_attr(const unsigned int xid, struct cifs_tcon *tcon,
 	else if (level == FS_DEVICE_INFORMATION)
 		memcpy(&tcon->fsDevInfo, 4 /* RFC1001 len */ + offset
 			+ (char *)&rsp->hdr, sizeof(FILE_SYSTEM_DEVICE_INFO));
+	else if (level == FS_SECTOR_SIZE_INFORMATION) {
+		struct smb3_fs_ss_info *ss_info = (struct smb3_fs_ss_info *)
+			(4 /* RFC1001 len */ + offset + (char *)&rsp->hdr);
+		tcon->ss_flags = le32_to_cpu(ss_info->Flags);
+		tcon->perf_sector_size =
+			le32_to_cpu(ss_info->PhysicalBytesPerSectorForPerf);
+	}
 
 qfsattr_exit:
 	free_rsp_buf(resp_buftype, iov.iov_base);
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index c7c3c8294d1a..7e44f18cc169 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -877,14 +877,16 @@ struct smb2_lease_ack {
 
 /* File System Information Classes */
 #define FS_VOLUME_INFORMATION		1 /* Query */
-#define FS_LABEL_INFORMATION		2 /* Set */
+#define FS_LABEL_INFORMATION		2 /* Local only */
 #define FS_SIZE_INFORMATION		3 /* Query */
 #define FS_DEVICE_INFORMATION		4 /* Query */
 #define FS_ATTRIBUTE_INFORMATION	5 /* Query */
 #define FS_CONTROL_INFORMATION		6 /* Query, Set */
 #define FS_FULL_SIZE_INFORMATION	7 /* Query */
 #define FS_OBJECT_ID_INFORMATION	8 /* Query, Set */
-#define FS_DRIVER_PATH_INFORMATION	9 /* Query */
+#define FS_DRIVER_PATH_INFORMATION	9 /* Local only */
+#define FS_VOLUME_FLAGS_INFORMATION	10 /* Local only */
+#define FS_SECTOR_SIZE_INFORMATION	11 /* SMB3 or later. Query */
 
 struct smb2_fs_full_size_info {
 	__le64 TotalAllocationUnits;
@@ -894,6 +896,22 @@ struct smb2_fs_full_size_info {
 	__le32 BytesPerSector;
 } __packed;
 
+#define SSINFO_FLAGS_ALIGNED_DEVICE		0x00000001
+#define SSINFO_FLAGS_PARTITION_ALIGNED_ON_DEVICE 0x00000002
+#define SSINFO_FLAGS_NO_SEEK_PENALTY		0x00000004
+#define SSINFO_FLAGS_TRIM_ENABLED		0x00000008
+
+/* sector size info struct */
+struct smb3_fs_ss_info {
+	__le32 LogicalBytesPerSector;
+	__le32 PhysicalBytesPerSectorForAtomicity;
+	__le32 PhysicalBytesPerSectorForPerf;
+	__le32 FileSystemEffectivePhysicalBytesPerSectorForAtomicity;
+	__le32 Flags;
+	__le32 ByteOffsetForSectorAlignment;
+	__le32 ByteOffsetForPartitionAlignment;
+} __packed;
+
 /* partial list of QUERY INFO levels */
 #define FILE_DIRECTORY_INFORMATION	1
 #define FILE_FULL_DIRECTORY_INFORMATION 2
-- 
cgit 


From c7f508a99bf229963915e79a603e0618d1d2ba76 Mon Sep 17 00:00:00 2001
From: Steve French <smfrench@gmail.com>
Date: Mon, 14 Oct 2013 15:27:32 -0500
Subject: Allow setting per-file compression via CIFS protocol

An earlier patch allowed setting the per-file compression flag

"chattr +c filename"

on an smb2 or smb3 mount, and also allowed lsattr to return
whether a file on a cifs, or smb2/smb3 mount was compressed.

This patch extends the ability to set the per-file
compression flag to the cifs protocol, which uses a somewhat
different IOCTL mechanism than SMB2, although the payload
(the flags stored in the compression_state) are the same.

Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/cifspdu.h   | 29 ++++++++++++++++++++++++++++
 fs/cifs/cifsproto.h |  2 ++
 fs/cifs/cifssmb.c   | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 fs/cifs/smb1ops.c   |  8 ++++++++
 fs/cifs/smb2pdu.h   |  5 +----
 5 files changed, 94 insertions(+), 4 deletions(-)

diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index f80f98f5ef9c..9e5ee34de986 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -1352,6 +1352,35 @@ typedef struct smb_com_transaction_ioctl_req {
 	__u8 Data[1];
 } __attribute__((packed)) TRANSACT_IOCTL_REQ;
 
+typedef struct smb_com_transaction_compr_ioctl_req {
+	struct smb_hdr hdr;	/* wct = 23 */
+	__u8 MaxSetupCount;
+	__u16 Reserved;
+	__le32 TotalParameterCount;
+	__le32 TotalDataCount;
+	__le32 MaxParameterCount;
+	__le32 MaxDataCount;
+	__le32 ParameterCount;
+	__le32 ParameterOffset;
+	__le32 DataCount;
+	__le32 DataOffset;
+	__u8 SetupCount; /* four setup words follow subcommand */
+	/* SNIA spec incorrectly included spurious pad here */
+	__le16 SubCommand; /* 2 = IOCTL/FSCTL */
+	__le32 FunctionCode;
+	__u16 Fid;
+	__u8 IsFsctl;  /* 1 = File System Control 0 = device control (IOCTL) */
+	__u8 IsRootFlag; /* 1 = apply command to root of share (must be DFS) */
+	__le16 ByteCount;
+	__u8 Pad[3];
+	__le16 compression_state;  /* See below for valid flags */
+} __attribute__((packed)) TRANSACT_COMPR_IOCTL_REQ;
+
+/* compression state flags */
+#define COMPRESSION_FORMAT_NONE		0x0000
+#define COMPRESSION_FORMAT_DEFAULT	0x0001
+#define COMPRESSION_FORMAT_LZNT1	0x0002
+
 typedef struct smb_com_transaction_ioctl_rsp {
 	struct smb_hdr hdr;	/* wct = 19 */
 	__u8 Reserved[3];
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index b5ec2a268f56..aa3397620342 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -360,6 +360,8 @@ extern int CIFSSMBUnixQuerySymLink(const unsigned int xid,
 extern int CIFSSMBQuerySymLink(const unsigned int xid, struct cifs_tcon *tcon,
 			       __u16 fid, char **symlinkinfo,
 			       const struct nls_table *nls_codepage);
+extern int CIFSSMB_set_compression(const unsigned int xid,
+				   struct cifs_tcon *tcon, __u16 fid);
 extern int CIFSSMBOpen(const unsigned int xid, struct cifs_tcon *tcon,
 			const char *fileName, const int disposition,
 			const int access_flags, const int omode,
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index ccd31ab815d4..93b29474714a 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -3199,6 +3199,60 @@ qreparse_out:
 	return rc;
 }
 
+int
+CIFSSMB_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
+		    __u16 fid)
+{
+	int rc = 0;
+	int bytes_returned;
+	struct smb_com_transaction_compr_ioctl_req *pSMB;
+	struct smb_com_transaction_ioctl_rsp *pSMBr;
+
+	cifs_dbg(FYI, "Set compression for %u\n", fid);
+	rc = smb_init(SMB_COM_NT_TRANSACT, 23, tcon, (void **) &pSMB,
+		      (void **) &pSMBr);
+	if (rc)
+		return rc;
+
+	pSMB->compression_state = cpu_to_le16(COMPRESSION_FORMAT_DEFAULT);
+
+	pSMB->TotalParameterCount = 0;
+	pSMB->TotalDataCount = __constant_cpu_to_le32(2);
+	pSMB->MaxParameterCount = 0;
+	pSMB->MaxDataCount = 0;
+	pSMB->MaxSetupCount = 4;
+	pSMB->Reserved = 0;
+	pSMB->ParameterOffset = 0;
+	pSMB->DataCount = __constant_cpu_to_le32(2);
+	pSMB->DataOffset =
+		cpu_to_le32(offsetof(struct smb_com_transaction_compr_ioctl_req,
+				compression_state) - 4);  /* 84 */
+	pSMB->SetupCount = 4;
+	pSMB->SubCommand = __constant_cpu_to_le16(NT_TRANSACT_IOCTL);
+	pSMB->ParameterCount = 0;
+	pSMB->FunctionCode = __constant_cpu_to_le32(FSCTL_SET_COMPRESSION);
+	pSMB->IsFsctl = 1; /* FSCTL */
+	pSMB->IsRootFlag = 0;
+	pSMB->Fid = fid; /* file handle always le */
+	/* 3 byte pad, followed by 2 byte compress state */
+	pSMB->ByteCount = __constant_cpu_to_le16(5);
+	inc_rfc1001_len(pSMB, 5);
+
+	rc = SendReceive(xid, tcon->ses, (struct smb_hdr *) pSMB,
+			 (struct smb_hdr *) pSMBr, &bytes_returned, 0);
+	if (rc)
+		cifs_dbg(FYI, "Send error in SetCompression = %d\n", rc);
+
+	cifs_buf_release(pSMB);
+
+	/*
+	 * Note: On -EAGAIN error only caller can retry on handle based calls
+	 * since file handle passed in no longer valid.
+	 */
+	return rc;
+}
+
+
 #ifdef CONFIG_CIFS_POSIX
 
 /*Convert an Access Control Entry from wire format to local POSIX xattr format*/
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index 09ef8f322c2a..384cffe42850 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -806,6 +806,13 @@ out:
 	return rc;
 }
 
+static int
+cifs_set_compression(const unsigned int xid, struct cifs_tcon *tcon,
+		   struct cifsFileInfo *cfile)
+{
+	return CIFSSMB_set_compression(xid, tcon, cfile->fid.netfid);
+}
+
 static int
 cifs_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon,
 		     const char *path, struct cifs_sb_info *cifs_sb,
@@ -956,6 +963,7 @@ struct smb_version_operations smb1_operations = {
 	.set_path_size = CIFSSMBSetEOF,
 	.set_file_size = CIFSSMBSetFileSize,
 	.set_file_info = smb_set_file_info,
+	.set_compression = cifs_set_compression,
 	.echo = CIFSSMBEcho,
 	.mkdir = CIFSSMBMkDir,
 	.mkdir_setinfo = cifs_mkdir_setinfo,
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 7e44f18cc169..6183b1b7550f 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -570,12 +570,9 @@ struct network_interface_info_ioctl_rsp {
 #define NO_FILE_ID 0xFFFFFFFFFFFFFFFFULL /* general ioctls to srv not to file */
 
 struct compress_ioctl {
-	__le16 CompressionState;
+	__le16 CompressionState; /* See cifspdu.h for possible flag values */
 } __packed;
 
-#define COMPRESSION_FORMAT_NONE		0x0000
-#define COMPRESSION_FORMAT_DEFAULT	0x0001
-#define COMPRESSION_FORMAT_LZNT1	0x0002
 struct smb2_ioctl_req {
 	struct smb2_hdr hdr;
 	__le16 StructureSize;	/* Must be 57 */
-- 
cgit 


From f10d9ba405ed250d647d6d810f8fc5ff2f62f370 Mon Sep 17 00:00:00 2001
From: Steve French <smfrench@gmail.com>
Date: Sun, 13 Oct 2013 22:32:30 -0500
Subject: Fix unused variable warning when CIFS POSIX disabled

Fix unused variable warning when CONFIG_CIFS_POSIX disabled.

   fs/cifs/ioctl.c: In function 'cifs_ioctl':
>> fs/cifs/ioctl.c:40:8: warning: unused variable 'ExtAttrMask' [-Wunused-variable]
     __u64 ExtAttrMask = 0;
           ^
Pointed out by 0-DAY kernel build testing backend

Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/ioctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index 029867078aff..ba54bf6ab116 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -37,7 +37,6 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
 	struct cifsFileInfo *pSMBFile = filep->private_data;
 	struct cifs_tcon *tcon;
 	__u64	ExtAttrBits = 0;
-	__u64	ExtAttrMask = 0;
 	__u64   caps;
 
 	xid = get_xid();
@@ -54,6 +53,7 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
 			caps = le64_to_cpu(tcon->fsUnixInfo.Capability);
 #ifdef CONFIG_CIFS_POSIX
 			if (CIFS_UNIX_EXTATTR_CAP & caps) {
+				__u64	ExtAttrMask = 0;
 				rc = CIFSGetExtAttr(xid, tcon,
 						    pSMBFile->fid.netfid,
 						    &ExtAttrBits, &ExtAttrMask);
-- 
cgit 


From c481e9feee78c6ce1ba0a1c8c892049f6514f6cf Mon Sep 17 00:00:00 2001
From: Steve French <smfrench@gmail.com>
Date: Mon, 14 Oct 2013 01:21:53 -0500
Subject: Query network adapter info at mount time for debugging

When CONFIG_CIFS_STATS2 enabled query adapter info for debugging

It is easy now in SMB3 to query the information about the server's
network interfaces (and at least Windows 8 and above do this, if not
other clients) there are some useful pieces of information you can get
including:

- all of the network interfaces that the server advertises (not just
the one you are mounting over), and with SMB3 supporting multichannel
this helps with more than just failover (also aggregating multiple
sockets under one mount)

- whether the adapter supports RSS (useful to know if you want to
estimate whether setting up two or more socket connections to the same
address is going to be faster due to RSS offload in the adapter)

- whether the server supports RDMA

- whether the server has IPv6 interfaces (if you connected over IPv4
but prefer IPv6 e.g.)

- what the link speed is (you might want to reconnect over a higher
speed interface if available)

(Of course we could also rerequest this on every mount cheaplly to the
same server, as Windows apparently does, so we can update the adapter
info on new mounts, and also on every reconnect if the network
interface drops temporarily - so we don't have to rely on info from
the first mount to this server)

It is trivial to request this information - and certainly will be useful
when we get to the point of doing multichannel (and eventually RDMA),
but some of this (linkspeed etc.) info may help for debugging in
the meantime.  Enable this request when CONFIG_CIFS_STATS2 is on
(only for smb3 mounts since it is an SMB3 or later ioctl).

Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/smb2ops.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 25759c89619a..c571be8cb76e 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -209,6 +209,32 @@ smb2_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *volume_info)
 	return rsize;
 }
 
+#ifdef CONFIG_CIFS_STATS2
+static int
+SMB3_request_interfaces(const unsigned int xid, struct cifs_tcon *tcon)
+{
+	int rc;
+	unsigned int ret_data_len = 0;
+	struct network_interface_info_ioctl_rsp *out_buf;
+
+	rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID,
+			FSCTL_QUERY_NETWORK_INTERFACE_INFO, true /* is_fsctl */,
+			NULL /* no data input */, 0 /* no data input */,
+			(char **)&out_buf, &ret_data_len);
+
+	if ((rc == 0)  && (ret_data_len > 0)) {
+		/* Dump info on first interface */
+		cifs_dbg(FYI, "Adapter Capability 0x%x\t",
+			le32_to_cpu(out_buf->Capability));
+		cifs_dbg(FYI, "Link Speed %lld\n",
+			le64_to_cpu(out_buf->LinkSpeed));
+	} else
+		cifs_dbg(VFS, "error %d on ioctl to get interface list\n", rc);
+
+	return rc;
+}
+#endif /* STATS2 */
+
 static void
 smb3_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
 {
@@ -229,6 +255,10 @@ smb3_qfs_tcon(const unsigned int xid, struct cifs_tcon *tcon)
 	if (rc)
 		return;
 
+#ifdef CONFIG_CIFS_STATS2
+	SMB3_request_interfaces(xid, tcon);
+#endif /* STATS2 */
+
 	SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
 			FS_ATTRIBUTE_INFORMATION);
 	SMB2_QFS_attr(xid, tcon, fid.persistent_fid, fid.volatile_fid,
-- 
cgit 


From ec7f68e07bf10198717b7824c78201b46bbf1956 Mon Sep 17 00:00:00 2001
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: Wed, 30 Oct 2013 22:48:00 +0000
Subject: iio: hid_Sensors: fix crash during trigger unregister

We can't store the trigger instance created by iio_trigger_alloc, in
trig field of iio_device structure. This needs to be stored in the
driver private data. Othewise it can result in crash during module
unload. Hence created a trig_ptr in the common data structure
for each HID sensor IIO driver and storing here.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/accel/hid-sensor-accel-3d.c             | 5 +++--
 drivers/iio/common/hid-sensors/hid-sensor-trigger.c | 9 ++++-----
 drivers/iio/common/hid-sensors/hid-sensor-trigger.h | 2 +-
 drivers/iio/gyro/hid-sensor-gyro-3d.c               | 5 +++--
 drivers/iio/light/hid-sensor-als.c                  | 5 +++--
 drivers/iio/magnetometer/hid-sensor-magn-3d.c       | 5 +++--
 include/linux/hid-sensor-hub.h                      | 3 +++
 7 files changed, 20 insertions(+), 14 deletions(-)

diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c b/drivers/iio/accel/hid-sensor-accel-3d.c
index dcda17395c4e..1cae4e920c9b 100644
--- a/drivers/iio/accel/hid-sensor-accel-3d.c
+++ b/drivers/iio/accel/hid-sensor-accel-3d.c
@@ -350,7 +350,7 @@ static int hid_accel_3d_probe(struct platform_device *pdev)
 error_iio_unreg:
 	iio_device_unregister(indio_dev);
 error_remove_trigger:
-	hid_sensor_remove_trigger(indio_dev);
+	hid_sensor_remove_trigger(&accel_state->common_attributes);
 error_unreg_buffer_funcs:
 	iio_triggered_buffer_cleanup(indio_dev);
 error_free_dev_mem:
@@ -363,10 +363,11 @@ static int hid_accel_3d_remove(struct platform_device *pdev)
 {
 	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
+	struct accel_3d_state *accel_state = iio_priv(indio_dev);
 
 	sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_ACCEL_3D);
 	iio_device_unregister(indio_dev);
-	hid_sensor_remove_trigger(indio_dev);
+	hid_sensor_remove_trigger(&accel_state->common_attributes);
 	iio_triggered_buffer_cleanup(indio_dev);
 	kfree(indio_dev->channels);
 
diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
index b6e77e0fc420..bbd6426c9726 100644
--- a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
+++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
@@ -55,11 +55,10 @@ static int hid_sensor_data_rdy_trigger_set_state(struct iio_trigger *trig,
 	return 0;
 }
 
-void hid_sensor_remove_trigger(struct iio_dev *indio_dev)
+void hid_sensor_remove_trigger(struct hid_sensor_common *attrb)
 {
-	iio_trigger_unregister(indio_dev->trig);
-	iio_trigger_free(indio_dev->trig);
-	indio_dev->trig = NULL;
+	iio_trigger_unregister(attrb->trigger);
+	iio_trigger_free(attrb->trigger);
 }
 EXPORT_SYMBOL(hid_sensor_remove_trigger);
 
@@ -90,7 +89,7 @@ int hid_sensor_setup_trigger(struct iio_dev *indio_dev, const char *name,
 		dev_err(&indio_dev->dev, "Trigger Register Failed\n");
 		goto error_free_trig;
 	}
-	indio_dev->trig = trig;
+	indio_dev->trig = attrb->trigger = trig;
 
 	return ret;
 
diff --git a/drivers/iio/common/hid-sensors/hid-sensor-trigger.h b/drivers/iio/common/hid-sensors/hid-sensor-trigger.h
index 9a8731478eda..ca02f7811aa8 100644
--- a/drivers/iio/common/hid-sensors/hid-sensor-trigger.h
+++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.h
@@ -21,6 +21,6 @@
 
 int hid_sensor_setup_trigger(struct iio_dev *indio_dev, const char *name,
 				struct hid_sensor_common *attrb);
-void hid_sensor_remove_trigger(struct iio_dev *indio_dev);
+void hid_sensor_remove_trigger(struct hid_sensor_common *attrb);
 
 #endif
diff --git a/drivers/iio/gyro/hid-sensor-gyro-3d.c b/drivers/iio/gyro/hid-sensor-gyro-3d.c
index ea01c6bcfb56..e54f0f4959d3 100644
--- a/drivers/iio/gyro/hid-sensor-gyro-3d.c
+++ b/drivers/iio/gyro/hid-sensor-gyro-3d.c
@@ -348,7 +348,7 @@ static int hid_gyro_3d_probe(struct platform_device *pdev)
 error_iio_unreg:
 	iio_device_unregister(indio_dev);
 error_remove_trigger:
-	hid_sensor_remove_trigger(indio_dev);
+	hid_sensor_remove_trigger(&gyro_state->common_attributes);
 error_unreg_buffer_funcs:
 	iio_triggered_buffer_cleanup(indio_dev);
 error_free_dev_mem:
@@ -361,10 +361,11 @@ static int hid_gyro_3d_remove(struct platform_device *pdev)
 {
 	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
+	struct gyro_3d_state *gyro_state = iio_priv(indio_dev);
 
 	sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_GYRO_3D);
 	iio_device_unregister(indio_dev);
-	hid_sensor_remove_trigger(indio_dev);
+	hid_sensor_remove_trigger(&gyro_state->common_attributes);
 	iio_triggered_buffer_cleanup(indio_dev);
 	kfree(indio_dev->channels);
 
diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c
index fa6ae8cf89ea..8e8b9d722853 100644
--- a/drivers/iio/light/hid-sensor-als.c
+++ b/drivers/iio/light/hid-sensor-als.c
@@ -314,7 +314,7 @@ static int hid_als_probe(struct platform_device *pdev)
 error_iio_unreg:
 	iio_device_unregister(indio_dev);
 error_remove_trigger:
-	hid_sensor_remove_trigger(indio_dev);
+	hid_sensor_remove_trigger(&als_state->common_attributes);
 error_unreg_buffer_funcs:
 	iio_triggered_buffer_cleanup(indio_dev);
 error_free_dev_mem:
@@ -327,10 +327,11 @@ static int hid_als_remove(struct platform_device *pdev)
 {
 	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
+	struct als_state *als_state = iio_priv(indio_dev);
 
 	sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_ALS);
 	iio_device_unregister(indio_dev);
-	hid_sensor_remove_trigger(indio_dev);
+	hid_sensor_remove_trigger(&als_state->common_attributes);
 	iio_triggered_buffer_cleanup(indio_dev);
 	kfree(indio_dev->channels);
 
diff --git a/drivers/iio/magnetometer/hid-sensor-magn-3d.c b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
index 2634920562fb..b26e1028a0a0 100644
--- a/drivers/iio/magnetometer/hid-sensor-magn-3d.c
+++ b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
@@ -351,7 +351,7 @@ static int hid_magn_3d_probe(struct platform_device *pdev)
 error_iio_unreg:
 	iio_device_unregister(indio_dev);
 error_remove_trigger:
-	hid_sensor_remove_trigger(indio_dev);
+	hid_sensor_remove_trigger(&magn_state->common_attributes);
 error_unreg_buffer_funcs:
 	iio_triggered_buffer_cleanup(indio_dev);
 error_free_dev_mem:
@@ -364,10 +364,11 @@ static int hid_magn_3d_remove(struct platform_device *pdev)
 {
 	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
 	struct iio_dev *indio_dev = platform_get_drvdata(pdev);
+	struct magn_3d_state *magn_state = iio_priv(indio_dev);
 
 	sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_COMPASS_3D);
 	iio_device_unregister(indio_dev);
-	hid_sensor_remove_trigger(indio_dev);
+	hid_sensor_remove_trigger(&magn_state->common_attributes);
 	iio_triggered_buffer_cleanup(indio_dev);
 	kfree(indio_dev->channels);
 
diff --git a/include/linux/hid-sensor-hub.h b/include/linux/hid-sensor-hub.h
index a265af294ea4..206a2af6b62b 100644
--- a/include/linux/hid-sensor-hub.h
+++ b/include/linux/hid-sensor-hub.h
@@ -21,6 +21,8 @@
 
 #include <linux/hid.h>
 #include <linux/hid-sensor-ids.h>
+#include <linux/iio/iio.h>
+#include <linux/iio/trigger.h>
 
 /**
  * struct hid_sensor_hub_attribute_info - Attribute info
@@ -184,6 +186,7 @@ struct hid_sensor_common {
 	struct platform_device *pdev;
 	unsigned usage_id;
 	bool data_ready;
+	struct iio_trigger *trigger;
 	struct hid_sensor_hub_attribute_info poll;
 	struct hid_sensor_hub_attribute_info report_state;
 	struct hid_sensor_hub_attribute_info power_state;
-- 
cgit 


From 0841c04d65937ad2808f59c43cb54a92473c8f0e Mon Sep 17 00:00:00 2001
From: "Luck, Tony" <tony.luck@intel.com>
Date: Fri, 1 Nov 2013 13:59:52 -0700
Subject: dmi: Avoid unaligned memory access in save_mem_devices()

Firmware is not required to maintain alignment of SMBIOS
entries, so we should take care accessing fields within these
structures. Use "get_unaligned()" to avoid problems.

[ Found on ia64 (which grumbles about unaligned access) ]

Signed-off-by: Tony Luck <tony.luck@intel.com>
Cc: Chen Gong <gong.chen@linux.intel.com>
Link: http://lkml.kernel.org/r/27d82dbff5be1025bf18ab88498632d36c2fcf3c.1383331440.git.tony.luck@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 drivers/firmware/dmi_scan.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c
index 59579a744d58..c7e81ff8f3ef 100644
--- a/drivers/firmware/dmi_scan.c
+++ b/drivers/firmware/dmi_scan.c
@@ -8,6 +8,7 @@
 #include <linux/bootmem.h>
 #include <linux/random.h>
 #include <asm/dmi.h>
+#include <asm/unaligned.h>
 
 /*
  * DMI stands for "Desktop Management Interface".  It is part
@@ -347,7 +348,7 @@ static void __init save_mem_devices(const struct dmi_header *dm, void *v)
 		pr_warn(FW_BUG "Too many DIMM entries in SMBIOS table\n");
 		return;
 	}
-	dmi_memdev[nr].handle = dm->handle;
+	dmi_memdev[nr].handle = get_unaligned(&dm->handle);
 	dmi_memdev[nr].device = dmi_string(dm, d[0x10]);
 	dmi_memdev[nr].bank = dmi_string(dm, d[0x11]);
 	nr++;
-- 
cgit 


From daf727225b8abfdfe424716abac3d15a3ac5626a Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Thu, 31 Oct 2013 23:05:24 +0100
Subject: KVM: x86: fix emulation of "movzbl %bpl, %eax"

When I was looking at RHEL5.9's failure to start with
unrestricted_guest=0/emulate_invalid_guest_state=1, I got it working with a
slightly older tree than kvm.git.  I now debugged the remaining failure,
which was introduced by commit 660696d1 (KVM: X86 emulator: fix
source operand decoding for 8bit mov[zs]x instructions, 2013-04-24)
introduced a similar mis-emulation to the one in commit 8acb4207 (KVM:
fix sil/dil/bpl/spl in the mod/rm fields, 2013-05-30).  The incorrect
decoding occurs in 8-bit movzx/movsx instructions whose 8-bit operand
is sil/dil/bpl/spl.

Needless to say, "movzbl %bpl, %eax" does occur in RHEL5.9's decompression
prolog, just a handful of instructions before finally giving control to
the decompressed vmlinux and getting out of the invalid guest state.

Because OpMem8 bypasses decode_modrm, the same handling of the REX prefix
must be applied to OpMem8.

Reported-by: Michele Baldessari <michele@redhat.com>
Cc: stable@vger.kernel.org
Cc: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/kvm/emulate.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 16c037e7db7d..282d28cb9931 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -4117,7 +4117,10 @@ static int decode_operand(struct x86_emulate_ctxt *ctxt, struct operand *op,
 	case OpMem8:
 		ctxt->memop.bytes = 1;
 		if (ctxt->memop.type == OP_REG) {
-			ctxt->memop.addr.reg = decode_register(ctxt, ctxt->modrm_rm, 1);
+			int highbyte_regs = ctxt->rex_prefix == 0;
+
+			ctxt->memop.addr.reg = decode_register(ctxt, ctxt->modrm_rm,
+					       highbyte_regs);
 			fetch_register_operand(&ctxt->memop);
 		}
 		goto mem_common;
-- 
cgit 


From f6f0747e5bc69401d7f90313aa1b46709d27840a Mon Sep 17 00:00:00 2001
From: Sylwester Nawrocki <s.nawrocki@samsung.com>
Date: Mon, 28 Oct 2013 13:12:35 -0500
Subject: of: Add empty for_each_available_child_of_node() macro definition

Add this empty macro definition so users can be compiled without
excluding this macro call with preprocessor directives when CONFIG_OF
is disabled.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 include/linux/of.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/linux/of.h b/include/linux/of.h
index 54017b83650b..b97f685c941f 100644
--- a/include/linux/of.h
+++ b/include/linux/of.h
@@ -366,6 +366,9 @@ static inline bool of_have_populated_dt(void)
 #define for_each_child_of_node(parent, child) \
 	while (0)
 
+#define for_each_available_child_of_node(parent, child) \
+	while (0)
+
 static inline struct device_node *of_get_child_by_name(
 					const struct device_node *node,
 					const char *name)
-- 
cgit 


From 67aeb39a173b5c172c75c5b9f1844853aec16eb4 Mon Sep 17 00:00:00 2001
From: Soren Brinkmann <soren.brinkmann@xilinx.com>
Date: Fri, 1 Nov 2013 08:42:04 -0700
Subject: of: Add vendor prefix for Cadence

Drivers like clocksource/cadence_ttc and net/macb already use the 'cdns'
prefix for Cadence IP.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 2956800f0240..1ce180ce610d 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -16,6 +16,7 @@ avago	Avago Technologies
 bosch	Bosch Sensortec GmbH
 brcm	Broadcom Corporation
 cavium	Cavium, Inc.
+cdns	Cadence Design Systems Inc.
 chrp	Common Hardware Reference Platform
 cirrus	Cirrus Logic, Inc.
 cortina	Cortina Systems, Inc.
-- 
cgit 


From d6c3073e7fb5a9e9accfb11b07bad96022acf7c4 Mon Sep 17 00:00:00 2001
From: Silvio F <silvio.maillist@gmail.com>
Date: Sat, 2 Nov 2013 09:04:54 +0100
Subject: DT: sort vendor-prefixes.txt

Signed-off-by: Silvio F <silvio.fricke@gmail.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 Documentation/devicetree/bindings/vendor-prefixes.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 1ce180ce610d..139b84781924 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -65,12 +65,12 @@ snps 	Synopsys, Inc.
 st	STMicroelectronics
 ste	ST-Ericsson
 stericsson	ST-Ericsson
-toumaz	Toumaz
 ti	Texas Instruments
 toshiba	Toshiba Corporation
+toumaz	Toumaz
 v3	V3 Semiconductor
 via	VIA Technologies, Inc.
+winbond Winbond Electronics corp.
 wlf	Wolfson Microelectronics
 wm	Wondermedia Technologies, Inc.
-winbond Winbond Electronics corp.
 xlnx	Xilinx
-- 
cgit 


From 13ccacd5945aa5ce81d8566f57587e95fbd90742 Mon Sep 17 00:00:00 2001
From: Matt Porter <matt.porter@linaro.org>
Date: Thu, 17 Oct 2013 08:09:16 -0400
Subject: of: add vendor prefix for PHYTEC Messtechnik GmbH

Adds PHYTEC to the list of DT vendor prefixes.

Signed-off-by: Matt Porter <matt.porter@linaro.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 139b84781924..640e86dc0ae7 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -46,6 +46,7 @@ nintendo	Nintendo
 nvidia	NVIDIA
 nxp	NXP Semiconductors
 onnn	ON Semiconductor Corp.
+phytec	PHYTEC Messtechnik GmbH
 picochip	Picochip Ltd
 powervr	PowerVR (deprecated, use img)
 qca	Qualcomm Atheros, Inc.
-- 
cgit 


From 0589342c27944e50ebd7a54f5215002b6598b748 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Tue, 29 Oct 2013 23:36:46 -0500
Subject: of: set dma_mask to point to coherent_dma_mask

Platform devices created by DT code don't initialize dma_mask pointer to
anything. Set it to coherent_dma_mask by default if the architecture
code has not set it.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 drivers/of/platform.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 9b439ac63d8e..c005495fa382 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -216,6 +216,8 @@ static struct platform_device *of_platform_device_create_pdata(
 	dev->archdata.dma_mask = 0xffffffffUL;
 #endif
 	dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
+	if (!dev->dev.dma_mask)
+		dev->dev.dma_mask = &dev->dev.coherent_dma_mask;
 	dev->dev.bus = &platform_bus_type;
 	dev->dev.platform_data = platform_data;
 
-- 
cgit 


From f7b13e4330ef3c20e62ac4908cc96c1c318056c2 Mon Sep 17 00:00:00 2001
From: Holger Eitzenberger <holger@eitzenberger.org>
Date: Thu, 26 Sep 2013 17:31:51 +0200
Subject: netfilter: introduce nf_conn_acct structure

Encapsulate counters for both directions into nf_conn_acct. During
that process also consistently name pointers to the extend 'acct',
not 'counters'. This patch is a cleanup.

Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 include/net/netfilter/nf_conntrack_acct.h   | 10 +++++++---
 include/net/netfilter/nf_conntrack_extend.h |  2 +-
 net/netfilter/nf_conntrack_acct.c           | 12 +++++++-----
 net/netfilter/nf_conntrack_core.c           | 16 ++++++++++------
 net/netfilter/nf_conntrack_netlink.c        | 16 +++++++++-------
 net/netfilter/xt_connbytes.c                |  6 ++++--
 6 files changed, 38 insertions(+), 24 deletions(-)

diff --git a/include/net/netfilter/nf_conntrack_acct.h b/include/net/netfilter/nf_conntrack_acct.h
index fef44edf49c1..79d8d16732b4 100644
--- a/include/net/netfilter/nf_conntrack_acct.h
+++ b/include/net/netfilter/nf_conntrack_acct.h
@@ -19,17 +19,21 @@ struct nf_conn_counter {
 	atomic64_t bytes;
 };
 
+struct nf_conn_acct {
+	struct nf_conn_counter counter[IP_CT_DIR_MAX];
+};
+
 static inline
-struct nf_conn_counter *nf_conn_acct_find(const struct nf_conn *ct)
+struct nf_conn_acct *nf_conn_acct_find(const struct nf_conn *ct)
 {
 	return nf_ct_ext_find(ct, NF_CT_EXT_ACCT);
 }
 
 static inline
-struct nf_conn_counter *nf_ct_acct_ext_add(struct nf_conn *ct, gfp_t gfp)
+struct nf_conn_acct *nf_ct_acct_ext_add(struct nf_conn *ct, gfp_t gfp)
 {
 	struct net *net = nf_ct_net(ct);
-	struct nf_conn_counter *acct;
+	struct nf_conn_acct *acct;
 
 	if (!net->ct.sysctl_acct)
 		return NULL;
diff --git a/include/net/netfilter/nf_conntrack_extend.h b/include/net/netfilter/nf_conntrack_extend.h
index 86372ae0ee84..956b175523ff 100644
--- a/include/net/netfilter/nf_conntrack_extend.h
+++ b/include/net/netfilter/nf_conntrack_extend.h
@@ -36,7 +36,7 @@ enum nf_ct_ext_id {
 #define NF_CT_EXT_HELPER_TYPE struct nf_conn_help
 #define NF_CT_EXT_NAT_TYPE struct nf_conn_nat
 #define NF_CT_EXT_SEQADJ_TYPE struct nf_conn_seqadj
-#define NF_CT_EXT_ACCT_TYPE struct nf_conn_counter
+#define NF_CT_EXT_ACCT_TYPE struct nf_conn_acct
 #define NF_CT_EXT_ECACHE_TYPE struct nf_conntrack_ecache
 #define NF_CT_EXT_ZONE_TYPE struct nf_conntrack_zone
 #define NF_CT_EXT_TSTAMP_TYPE struct nf_conn_tstamp
diff --git a/net/netfilter/nf_conntrack_acct.c b/net/netfilter/nf_conntrack_acct.c
index 2d3030ab5b61..a4b5e2a435ac 100644
--- a/net/netfilter/nf_conntrack_acct.c
+++ b/net/netfilter/nf_conntrack_acct.c
@@ -39,21 +39,23 @@ static struct ctl_table acct_sysctl_table[] = {
 unsigned int
 seq_print_acct(struct seq_file *s, const struct nf_conn *ct, int dir)
 {
-	struct nf_conn_counter *acct;
+	struct nf_conn_acct *acct;
+	struct nf_conn_counter *counter;
 
 	acct = nf_conn_acct_find(ct);
 	if (!acct)
 		return 0;
 
+	counter = acct->counter;
 	return seq_printf(s, "packets=%llu bytes=%llu ",
-			  (unsigned long long)atomic64_read(&acct[dir].packets),
-			  (unsigned long long)atomic64_read(&acct[dir].bytes));
+			  (unsigned long long)atomic64_read(&counter[dir].packets),
+			  (unsigned long long)atomic64_read(&counter[dir].bytes));
 };
 EXPORT_SYMBOL_GPL(seq_print_acct);
 
 static struct nf_ct_ext_type acct_extend __read_mostly = {
-	.len	= sizeof(struct nf_conn_counter[IP_CT_DIR_MAX]),
-	.align	= __alignof__(struct nf_conn_counter[IP_CT_DIR_MAX]),
+	.len	= sizeof(struct nf_conn_acct),
+	.align	= __alignof__(struct nf_conn_acct),
 	.id	= NF_CT_EXT_ACCT,
 };
 
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 5d892febd64c..e22d950c60b3 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -1109,12 +1109,14 @@ void __nf_ct_refresh_acct(struct nf_conn *ct,
 
 acct:
 	if (do_acct) {
-		struct nf_conn_counter *acct;
+		struct nf_conn_acct *acct;
 
 		acct = nf_conn_acct_find(ct);
 		if (acct) {
-			atomic64_inc(&acct[CTINFO2DIR(ctinfo)].packets);
-			atomic64_add(skb->len, &acct[CTINFO2DIR(ctinfo)].bytes);
+			struct nf_conn_counter *counter = acct->counter;
+
+			atomic64_inc(&counter[CTINFO2DIR(ctinfo)].packets);
+			atomic64_add(skb->len, &counter[CTINFO2DIR(ctinfo)].bytes);
 		}
 	}
 }
@@ -1126,13 +1128,15 @@ bool __nf_ct_kill_acct(struct nf_conn *ct,
 		       int do_acct)
 {
 	if (do_acct) {
-		struct nf_conn_counter *acct;
+		struct nf_conn_acct *acct;
 
 		acct = nf_conn_acct_find(ct);
 		if (acct) {
-			atomic64_inc(&acct[CTINFO2DIR(ctinfo)].packets);
+			struct nf_conn_counter *counter = acct->counter;
+
+			atomic64_inc(&counter[CTINFO2DIR(ctinfo)].packets);
 			atomic64_add(skb->len - skb_network_offset(skb),
-				     &acct[CTINFO2DIR(ctinfo)].bytes);
+				     &counter[CTINFO2DIR(ctinfo)].bytes);
 		}
 	}
 
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index eea936b70d15..ddc3777d8340 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -237,19 +237,21 @@ static int
 ctnetlink_dump_counters(struct sk_buff *skb, const struct nf_conn *ct,
 			enum ip_conntrack_dir dir, int type)
 {
-	struct nf_conn_counter *acct;
+	struct nf_conn_acct *acct;
+	struct nf_conn_counter *counter;
 	u64 pkts, bytes;
 
 	acct = nf_conn_acct_find(ct);
 	if (!acct)
 		return 0;
 
+	counter = acct->counter;
 	if (type == IPCTNL_MSG_CT_GET_CTRZERO) {
-		pkts = atomic64_xchg(&acct[dir].packets, 0);
-		bytes = atomic64_xchg(&acct[dir].bytes, 0);
+		pkts = atomic64_xchg(&counter[dir].packets, 0);
+		bytes = atomic64_xchg(&counter[dir].bytes, 0);
 	} else {
-		pkts = atomic64_read(&acct[dir].packets);
-		bytes = atomic64_read(&acct[dir].bytes);
+		pkts = atomic64_read(&counter[dir].packets);
+		bytes = atomic64_read(&counter[dir].bytes);
 	}
 	return dump_counters(skb, pkts, bytes, dir);
 }
@@ -530,7 +532,7 @@ ctnetlink_proto_size(const struct nf_conn *ct)
 }
 
 static inline size_t
-ctnetlink_counters_size(const struct nf_conn *ct)
+ctnetlink_acct_size(const struct nf_conn *ct)
 {
 	if (!nf_ct_ext_exist(ct, NF_CT_EXT_ACCT))
 		return 0;
@@ -579,7 +581,7 @@ ctnetlink_nlmsg_size(const struct nf_conn *ct)
 	       + 3 * nla_total_size(sizeof(u_int8_t)) /* CTA_PROTO_NUM */
 	       + nla_total_size(sizeof(u_int32_t)) /* CTA_ID */
 	       + nla_total_size(sizeof(u_int32_t)) /* CTA_STATUS */
-	       + ctnetlink_counters_size(ct)
+	       + ctnetlink_acct_size(ct)
 	       + ctnetlink_timestamp_size(ct)
 	       + nla_total_size(sizeof(u_int32_t)) /* CTA_TIMEOUT */
 	       + nla_total_size(0) /* CTA_PROTOINFO */
diff --git a/net/netfilter/xt_connbytes.c b/net/netfilter/xt_connbytes.c
index e595e07a759b..1e634615ab9d 100644
--- a/net/netfilter/xt_connbytes.c
+++ b/net/netfilter/xt_connbytes.c
@@ -26,16 +26,18 @@ connbytes_mt(const struct sk_buff *skb, struct xt_action_param *par)
 	u_int64_t what = 0;	/* initialize to make gcc happy */
 	u_int64_t bytes = 0;
 	u_int64_t pkts = 0;
+	const struct nf_conn_acct *acct;
 	const struct nf_conn_counter *counters;
 
 	ct = nf_ct_get(skb, &ctinfo);
 	if (!ct)
 		return false;
 
-	counters = nf_conn_acct_find(ct);
-	if (!counters)
+	acct = nf_conn_acct_find(ct);
+	if (!acct)
 		return false;
 
+	counters = acct->counter;
 	switch (sinfo->what) {
 	case XT_CONNBYTES_PKTS:
 		switch (sinfo->direction) {
-- 
cgit 


From 4542fa4727f5f83faf9e1f28f35be0b9a2317aec Mon Sep 17 00:00:00 2001
From: Holger Eitzenberger <holger@eitzenberger.org>
Date: Thu, 26 Sep 2013 17:31:52 +0200
Subject: netfilter: ctnetlink: account both directions in one step

With the intent to dump other accounting data later.
This patch is a cleanup.

Signed-off-by: Holger Eitzenberger <holger@eitzenberger.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nf_conntrack_netlink.c | 49 ++++++++++++++++++------------------
 1 file changed, 24 insertions(+), 25 deletions(-)

diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index ddc3777d8340..08870b859046 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -211,13 +211,23 @@ nla_put_failure:
 }
 
 static int
-dump_counters(struct sk_buff *skb, u64 pkts, u64 bytes,
-	      enum ip_conntrack_dir dir)
+dump_counters(struct sk_buff *skb, struct nf_conn_acct *acct,
+	      enum ip_conntrack_dir dir, int type)
 {
-	enum ctattr_type type = dir ? CTA_COUNTERS_REPLY: CTA_COUNTERS_ORIG;
+	enum ctattr_type attr = dir ? CTA_COUNTERS_REPLY: CTA_COUNTERS_ORIG;
+	struct nf_conn_counter *counter = acct->counter;
 	struct nlattr *nest_count;
+	u64 pkts, bytes;
 
-	nest_count = nla_nest_start(skb, type | NLA_F_NESTED);
+	if (type == IPCTNL_MSG_CT_GET_CTRZERO) {
+		pkts = atomic64_xchg(&counter[dir].packets, 0);
+		bytes = atomic64_xchg(&counter[dir].bytes, 0);
+	} else {
+		pkts = atomic64_read(&counter[dir].packets);
+		bytes = atomic64_read(&counter[dir].bytes);
+	}
+
+	nest_count = nla_nest_start(skb, attr | NLA_F_NESTED);
 	if (!nest_count)
 		goto nla_put_failure;
 
@@ -234,26 +244,19 @@ nla_put_failure:
 }
 
 static int
-ctnetlink_dump_counters(struct sk_buff *skb, const struct nf_conn *ct,
-			enum ip_conntrack_dir dir, int type)
+ctnetlink_dump_acct(struct sk_buff *skb, const struct nf_conn *ct, int type)
 {
-	struct nf_conn_acct *acct;
-	struct nf_conn_counter *counter;
-	u64 pkts, bytes;
+	struct nf_conn_acct *acct = nf_conn_acct_find(ct);
 
-	acct = nf_conn_acct_find(ct);
 	if (!acct)
 		return 0;
 
-	counter = acct->counter;
-	if (type == IPCTNL_MSG_CT_GET_CTRZERO) {
-		pkts = atomic64_xchg(&counter[dir].packets, 0);
-		bytes = atomic64_xchg(&counter[dir].bytes, 0);
-	} else {
-		pkts = atomic64_read(&counter[dir].packets);
-		bytes = atomic64_read(&counter[dir].bytes);
-	}
-	return dump_counters(skb, pkts, bytes, dir);
+	if (dump_counters(skb, acct, IP_CT_DIR_ORIGINAL, type) < 0)
+		return -1;
+	if (dump_counters(skb, acct, IP_CT_DIR_REPLY, type) < 0)
+		return -1;
+
+	return 0;
 }
 
 static int
@@ -490,8 +493,7 @@ ctnetlink_fill_info(struct sk_buff *skb, u32 portid, u32 seq, u32 type,
 
 	if (ctnetlink_dump_status(skb, ct) < 0 ||
 	    ctnetlink_dump_timeout(skb, ct) < 0 ||
-	    ctnetlink_dump_counters(skb, ct, IP_CT_DIR_ORIGINAL, type) < 0 ||
-	    ctnetlink_dump_counters(skb, ct, IP_CT_DIR_REPLY, type) < 0 ||
+	    ctnetlink_dump_acct(skb, ct, type) < 0 ||
 	    ctnetlink_dump_timestamp(skb, ct) < 0 ||
 	    ctnetlink_dump_protoinfo(skb, ct) < 0 ||
 	    ctnetlink_dump_helpinfo(skb, ct) < 0 ||
@@ -675,10 +677,7 @@ ctnetlink_conntrack_event(unsigned int events, struct nf_ct_event *item)
 		goto nla_put_failure;
 
 	if (events & (1 << IPCT_DESTROY)) {
-		if (ctnetlink_dump_counters(skb, ct,
-					    IP_CT_DIR_ORIGINAL, type) < 0 ||
-		    ctnetlink_dump_counters(skb, ct,
-					    IP_CT_DIR_REPLY, type) < 0 ||
+		if (ctnetlink_dump_acct(skb, ct, type) < 0 ||
 		    ctnetlink_dump_timestamp(skb, ct) < 0)
 			goto nla_put_failure;
 	} else {
-- 
cgit 


From ca0e8bd68bae3d0bad758b5a82dbf9327b75325c Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 30 Oct 2013 13:31:30 +0800
Subject: netfilter: nf_tables: remove duplicated include from nf_tables_ipv4.c

Remove duplicated include.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/ipv4/netfilter/nf_tables_ipv4.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/ipv4/netfilter/nf_tables_ipv4.c b/net/ipv4/netfilter/nf_tables_ipv4.c
index 8f7536be1322..0f4cbfeb19bd 100644
--- a/net/ipv4/netfilter/nf_tables_ipv4.c
+++ b/net/ipv4/netfilter/nf_tables_ipv4.c
@@ -16,7 +16,6 @@
 #include <net/netfilter/nf_tables.h>
 #include <net/net_namespace.h>
 #include <net/ip.h>
-#include <net/net_namespace.h>
 #include <net/netfilter/nf_tables_ipv4.h>
 
 static unsigned int nft_ipv4_output(const struct nf_hook_ops *ops,
-- 
cgit 


From 78119fd1068cc068f6112a57a5f6de0e5b20245a Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Fri, 1 Nov 2013 10:50:50 -0700
Subject: of/irq: Fix bug in interrupt parsing refactor.

Commit 2361613206e6, "of/irq: Refactor interrupt-map parsing" introduced
a bug. The irq parsing will fail for some nodes that don't have a reg
property. It is fixed by deferring the check for reg until it is
actually needed. Also adjust the testcase data to catch the bug.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Tested-by: Stephen Warren <swarren@nvidia.com>
Tested-by: Ming Lei <tom.leiming@gmail.com>
Tested-by: Stephen Warren <swarren@nvidia.com>
Cc: Rob Herring <rob.herring@calxeda.com>
---
 arch/arm/boot/dts/testcases/tests-interrupts.dtsi |  7 ++++---
 drivers/of/irq.c                                  | 20 ++++++++++----------
 2 files changed, 14 insertions(+), 13 deletions(-)

diff --git a/arch/arm/boot/dts/testcases/tests-interrupts.dtsi b/arch/arm/boot/dts/testcases/tests-interrupts.dtsi
index 560d6bf680b6..c843720bd3e5 100644
--- a/arch/arm/boot/dts/testcases/tests-interrupts.dtsi
+++ b/arch/arm/boot/dts/testcases/tests-interrupts.dtsi
@@ -2,7 +2,8 @@
 / {
 	testcase-data {
 		interrupts {
-			#address-cells = <0>;
+			#address-cells = <1>;
+			#size-cells = <1>;
 			test_intc0: intc0 {
 				interrupt-controller;
 				#interrupt-cells = <1>;
@@ -29,8 +30,7 @@
 
 			test_intmap1: intmap1 {
 				#interrupt-cells = <2>;
-				#address-cells = <0>;
-				interrupt-map = <1 2 &test_intc0 15>;
+				interrupt-map = <0x5000 1 2 &test_intc0 15>;
 			};
 
 			interrupts0 {
@@ -44,6 +44,7 @@
 			};
 
 			interrupts-extended0 {
+				reg = <0x5000 0x100>;
 				interrupts-extended = <&test_intc0 1>,
 						      <&test_intc1 2 3 4>,
 						      <&test_intc2 5 6>,
diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 8cc62b4a7988..52dba6a01423 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -147,18 +147,9 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
 
 	pr_debug(" -> addrsize=%d\n", addrsize);
 
-	/* If we were passed no "reg" property and we attempt to parse
-	 * an interrupt-map, then #address-cells must be 0.
-	 * Fail if it's not.
-	 */
-	if (addr == NULL && addrsize != 0) {
-		pr_debug(" -> no reg passed in when needed !\n");
-		return -EINVAL;
-	}
-
 	/* Precalculate the match array - this simplifies match loop */
 	for (i = 0; i < addrsize; i++)
-		initial_match_array[i] = addr[i];
+		initial_match_array[i] = addr ? addr[i] : 0;
 	for (i = 0; i < intsize; i++)
 		initial_match_array[addrsize + i] = cpu_to_be32(out_irq->args[i]);
 
@@ -174,6 +165,15 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
 			return 0;
 		}
 
+		/*
+		 * interrupt-map parsing does not work without a reg
+		 * property when #address-cells != 0
+		 */
+		if (addrsize && !addr) {
+			pr_debug(" -> no reg passed in when needed !\n");
+			goto fail;
+		}
+
 		/* Now look for an interrupt-map */
 		imap = of_get_property(ipar, "interrupt-map", &imaplen);
 		/* No interrupt map, check for an interrupt parent */
-- 
cgit 


From 355e62f5ad12b005c862838156262eb2df2f8dff Mon Sep 17 00:00:00 2001
From: Grant Likely <grant.likely@linaro.org>
Date: Sat, 2 Nov 2013 00:11:02 -0700
Subject: of/irq: Fix potential buffer overflow

Commit 2361613206e6, "of/irq: Refactor interrupt-map parsing" introduced
a potential buffer overflow bug because it doesn't do sufficient range
checking on the input data. This patch adds the appropriate checking and
buffer size adjustments. If the bounds are out of range then warn
loudly. MAX_PHANDLE_ARGS should be sufficient. If it is not then the
value can be increased.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
---
 drivers/of/irq.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 52dba6a01423..d385bb824772 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -95,9 +95,9 @@ struct device_node *of_irq_find_parent(struct device_node *child)
 int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
 {
 	struct device_node *ipar, *tnode, *old = NULL, *newpar = NULL;
-	__be32 initial_match_array[8];
+	__be32 initial_match_array[MAX_PHANDLE_ARGS];
 	const __be32 *match_array = initial_match_array;
-	const __be32 *tmp, *imap, *imask, dummy_imask[] = { ~0, ~0, ~0, ~0, ~0 };
+	const __be32 *tmp, *imap, *imask, dummy_imask[] = { [0 ... MAX_PHANDLE_ARGS] = ~0 };
 	u32 intsize = 1, addrsize, newintsize = 0, newaddrsize = 0;
 	int imaplen, match, i;
 
@@ -147,6 +147,10 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
 
 	pr_debug(" -> addrsize=%d\n", addrsize);
 
+	/* Range check so that the temporary buffer doesn't overflow */
+	if (WARN_ON(addrsize + intsize > MAX_PHANDLE_ARGS))
+		goto fail;
+
 	/* Precalculate the match array - this simplifies match loop */
 	for (i = 0; i < addrsize; i++)
 		initial_match_array[i] = addr ? addr[i] : 0;
@@ -229,6 +233,8 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
 			    newintsize, newaddrsize);
 
 			/* Check for malformed properties */
+			if (WARN_ON(newaddrsize + newintsize > MAX_PHANDLE_ARGS))
+				goto fail;
 			if (imaplen < (newaddrsize + newintsize))
 				goto fail;
 
-- 
cgit 


From 40db23e5337d99fda05ee6cd18034b516f8f123d Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Sun, 3 Nov 2013 00:15:05 -0400
Subject: random: make add_timer_randomness() fill the nonblocking pool first

Change add_timer_randomness() so that it directs incoming entropy to
the nonblocking pool first if it hasn't been fully initialized yet.
This matches the strategy we use in add_interrupt_randomness(), which
allows us to push the randomness where we need it the most during when
the system is first booting up, so that get_random_bytes() and
/dev/urandom become safe to use as soon as possible.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 drivers/char/random.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index f126bd2f69fe..62923138e77a 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -761,6 +761,7 @@ static struct timer_rand_state input_timer_state;
  */
 static void add_timer_randomness(struct timer_rand_state *state, unsigned num)
 {
+	struct entropy_store	*r;
 	struct {
 		long jiffies;
 		unsigned cycles;
@@ -773,7 +774,8 @@ static void add_timer_randomness(struct timer_rand_state *state, unsigned num)
 	sample.jiffies = jiffies;
 	sample.cycles = random_get_entropy();
 	sample.num = num;
-	mix_pool_bytes(&input_pool, &sample, sizeof(sample), NULL);
+	r = nonblocking_pool.initialized ? &input_pool : &nonblocking_pool;
+	mix_pool_bytes(r, &sample, sizeof(sample), NULL);
 
 	/*
 	 * Calculate number of bits of randomness we probably added.
@@ -807,8 +809,7 @@ static void add_timer_randomness(struct timer_rand_state *state, unsigned num)
 		 * Round down by 1 bit on general principles,
 		 * and limit entropy entimate to 12 bits.
 		 */
-		credit_entropy_bits(&input_pool,
-				    min_t(int, fls(delta>>1), 11));
+		credit_entropy_bits(r, min_t(int, fls(delta>>1), 11));
 	}
 	preempt_enable();
 }
-- 
cgit 


From 301f0595c0e788edacc3521c4caa90b4e56ffee1 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Sun, 3 Nov 2013 06:54:51 -0500
Subject: random: printk notifications for urandom pool initialization

Print a notification to the console when the nonblocking pool is
initialized.  Also printk a warning when a process tries reading from
/dev/urandom before it is fully initialized.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 drivers/char/random.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 62923138e77a..a19a7a63ec35 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -655,6 +655,9 @@ retry:
 	r->entropy_total += nbits;
 	if (!r->initialized && nbits > 0) {
 		if (r->entropy_total > 128) {
+			if (r == &nonblocking_pool)
+				pr_notice("random: %s pool is initialized\n",
+					  r->name);
 			r->initialized = 1;
 			r->entropy_total = 0;
 		}
@@ -1327,7 +1330,14 @@ random_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
 static ssize_t
 urandom_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
 {
-	int ret = extract_entropy_user(&nonblocking_pool, buf, nbytes);
+	int ret;
+
+	if (unlikely(nonblocking_pool.initialized == 0))
+		printk_once(KERN_NOTICE "random: %s urandom read "
+			    "with %d bits of entropy available\n",
+			    current->comm, nonblocking_pool.entropy_total);
+
+	ret = extract_entropy_user(&nonblocking_pool, buf, nbytes);
 
 	trace_urandom_read(8 * nbytes, ENTROPY_BITS(&nonblocking_pool),
 			   ENTROPY_BITS(&input_pool));
-- 
cgit 


From ae9ecd92ddabc250817baa7eb401df3cfbd4c2da Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Sun, 3 Nov 2013 07:56:17 -0500
Subject: random: don't zap entropy count in rand_initialize()

The rand_initialize() function was being run fairly late in the kernel
boot sequence.  This was unfortunate, since it zero'ed the entropy
counters, thus throwing away credit that was accumulated earlier in
the boot sequence, and it also meant that initcall functions run
before rand_initialize were using a minimally initialized pool.

To fix this, fix init_std_data() to no longer zap the entropy counter;
it wasn't necessary, and move rand_initialize() to be an early
initcall.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 drivers/char/random.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index a19a7a63ec35..a38d97a21455 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1228,14 +1228,11 @@ static void init_std_data(struct entropy_store *r)
 	ktime_t now = ktime_get_real();
 	unsigned long rv;
 
-	r->entropy_count = 0;
-	r->entropy_total = 0;
-	r->last_data_init = 0;
 	r->last_pulled = jiffies;
 	mix_pool_bytes(r, &now, sizeof(now), NULL);
 	for (i = r->poolinfo->poolbytes; i > 0; i -= sizeof(rv)) {
 		if (!arch_get_random_long(&rv))
-			break;
+			rv = random_get_entropy();
 		mix_pool_bytes(r, &rv, sizeof(rv), NULL);
 	}
 	mix_pool_bytes(r, utsname(), sizeof(*(utsname())), NULL);
@@ -1258,7 +1255,7 @@ static int rand_initialize(void)
 	init_std_data(&nonblocking_pool);
 	return 0;
 }
-module_init(rand_initialize);
+early_initcall(rand_initialize);
 
 #ifdef CONFIG_BLOCK
 void rand_initialize_disk(struct gendisk *disk)
@@ -1433,10 +1430,15 @@ static long random_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
 		return 0;
 	case RNDZAPENTCNT:
 	case RNDCLEARPOOL:
-		/* Clear the entropy pool counters. */
+		/*
+		 * Clear the entropy pool counters. We no longer clear
+		 * the entropy pool, as that's silly.
+		 */
 		if (!capable(CAP_SYS_ADMIN))
 			return -EPERM;
-		rand_initialize();
+		input_pool.entropy_count = 0;
+		nonblocking_pool.entropy_count = 0;
+		blocking_pool.entropy_count = 0;
 		return 0;
 	default:
 		return -EINVAL;
-- 
cgit 


From 644008df899ec252e78db28c1b6d6b86779aada8 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Sun, 3 Nov 2013 16:40:53 -0500
Subject: random: initialize the last_time field in struct timer_rand_state

Since we initialize jiffies to wrap five minutes before boot (see
INITIAL_JIFFIES defined in include/linux/jiffies.h) it's important to
make sure the last_time field is initialized to INITIAL_JIFFIES.
Otherwise, the entropy estimator will overestimate the amount of
entropy resulting from the first call to add_timer_randomness(),
generally by about 8 bits.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 drivers/char/random.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index a38d97a21455..0894d86253fd 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -724,6 +724,8 @@ struct timer_rand_state {
 	unsigned dont_count_entropy:1;
 };
 
+#define INIT_TIMER_RAND_STATE { INITIAL_JIFFIES, };
+
 /*
  * Add device- or boot-specific data to the input and nonblocking
  * pools to help initialize them to unique values.
@@ -750,7 +752,7 @@ void add_device_randomness(const void *buf, unsigned int size)
 }
 EXPORT_SYMBOL(add_device_randomness);
 
-static struct timer_rand_state input_timer_state;
+static struct timer_rand_state input_timer_state = INIT_TIMER_RAND_STATE;
 
 /*
  * This function adds entropy to the entropy "pool" by using timing
@@ -1267,8 +1269,10 @@ void rand_initialize_disk(struct gendisk *disk)
 	 * source.
 	 */
 	state = kzalloc(sizeof(struct timer_rand_state), GFP_KERNEL);
-	if (state)
+	if (state) {
+		state->last_time = INITIAL_JIFFIES;
 		disk->random = state;
+	}
 }
 #endif
 
-- 
cgit 


From 392a546dc8368d1745f9891ef3f8f7c380de8650 Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Sun, 3 Nov 2013 18:24:08 -0500
Subject: random: add debugging code to detect early use of get_random_bytes()

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 drivers/char/random.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 0894d86253fd..cdf4cfb2da4d 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -280,6 +280,8 @@
 #define SEC_XFER_SIZE		512
 #define EXTRACT_SIZE		10
 
+#define DEBUG_RANDOM_BOOT 0
+
 #define LONGS(x) (((x) + sizeof(unsigned long) - 1)/sizeof(unsigned long))
 
 /*
@@ -1177,6 +1179,13 @@ static ssize_t extract_entropy_user(struct entropy_store *r, void __user *buf,
  */
 void get_random_bytes(void *buf, int nbytes)
 {
+#if DEBUG_RANDOM_BOOT > 0
+	if (unlikely(nonblocking_pool.initialized == 0))
+		printk(KERN_NOTICE "random: %pF get_random_bytes called "
+		       "with %d bits of entropy available\n",
+		       (void *) _RET_IP_,
+		       nonblocking_pool.entropy_total);
+#endif
 	trace_get_random_bytes(nbytes, _RET_IP_);
 	extract_entropy(&nonblocking_pool, buf, nbytes, 0, 0);
 }
-- 
cgit 


From 4bf08ff6f9f381fa625d65e36c3e8e57313943cf Mon Sep 17 00:00:00 2001
From: Chao Yu <chao2.yu@samsung.com>
Date: Mon, 4 Nov 2013 10:28:33 +0800
Subject: f2fs: remove unnecessary TestClearPageError when wait pages writeback

In wait_on_node_pages_writeback we will test and clear error flag for all
pages in radix tree, but not necessary.
So we only do this for pages belong to the specified inode.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/node.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index b527ed4c0225..4ac4150d421d 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1170,10 +1170,11 @@ int wait_on_node_pages_writeback(struct f2fs_sb_info *sbi, nid_t ino)
 			if (page->index > end)
 				continue;
 
-			if (ino && ino_of_node(page) == ino)
+			if (ino && ino_of_node(page) == ino) {
 				wait_on_page_writeback(page);
-			if (TestClearPageError(page))
-				ret = -EIO;
+				if (TestClearPageError(page))
+					ret = -EIO;
+			}
 		}
 		pagevec_release(&pvec);
 		cond_resched();
-- 
cgit 


From d921e049a02c7bd6ddf8f5e72303ca336009556d Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Wed, 30 Oct 2013 11:50:48 +0100
Subject: lib: crc32: clean up spacing in test cases

This is nothing more but a whitepace cleanup, as 80 chars is not a
hard but soft limit, and otherwise makes the test cases array really
look ugly. So fix it up.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 lib/crc32.c | 300 ++++++++++++++++++++----------------------------------------
 1 file changed, 100 insertions(+), 200 deletions(-)

diff --git a/lib/crc32.c b/lib/crc32.c
index 410093dbe51c..429d61ce6aa0 100644
--- a/lib/crc32.c
+++ b/lib/crc32.c
@@ -795,206 +795,106 @@ static struct crc_test {
 	u32 crc32c_le;	/* expected crc32c_le result */
 } test[] =
 {
-	{0x674bf11d, 0x00000038, 0x00000542, 0x0af6d466, 0xd8b6e4c1,
-	 0xf6e93d6c},
-	{0x35c672c6, 0x0000003a, 0x000001aa, 0xc6d3dfba, 0x28aaf3ad,
-	 0x0fe92aca},
-	{0x496da28e, 0x00000039, 0x000005af, 0xd933660f, 0x5d57e81f,
-	 0x52e1ebb8},
-	{0x09a9b90e, 0x00000027, 0x000001f8, 0xb45fe007, 0xf45fca9a,
-	 0x0798af9a},
-	{0xdc97e5a9, 0x00000025, 0x000003b6, 0xf81a3562, 0xe0126ba2,
-	 0x18eb3152},
-	{0x47c58900, 0x0000000a, 0x000000b9, 0x8e58eccf, 0xf3afc793,
-	 0xd00d08c7},
-	{0x292561e8, 0x0000000c, 0x00000403, 0xa2ba8aaf, 0x0b797aed,
-	 0x8ba966bc},
-	{0x415037f6, 0x00000003, 0x00000676, 0xa17d52e8, 0x7f0fdf35,
-	 0x11d694a2},
-	{0x3466e707, 0x00000026, 0x00000042, 0x258319be, 0x75c484a2,
-	 0x6ab3208d},
-	{0xafd1281b, 0x00000023, 0x000002ee, 0x4428eaf8, 0x06c7ad10,
-	 0xba4603c5},
-	{0xd3857b18, 0x00000028, 0x000004a2, 0x5c430821, 0xb062b7cb,
-	 0xe6071c6f},
-	{0x1d825a8f, 0x0000002b, 0x0000050b, 0xd2c45f0c, 0xd68634e0,
-	 0x179ec30a},
-	{0x5033e3bc, 0x0000000b, 0x00000078, 0xa3ea4113, 0xac6d31fb,
-	 0x0903beb8},
-	{0x94f1fb5e, 0x0000000f, 0x000003a2, 0xfbfc50b1, 0x3cfe50ed,
-	 0x6a7cb4fa},
-	{0xc9a0fe14, 0x00000009, 0x00000473, 0x5fb61894, 0x87070591,
-	 0xdb535801},
-	{0x88a034b1, 0x0000001c, 0x000005ad, 0xc1b16053, 0x46f95c67,
-	 0x92bed597},
-	{0xf0f72239, 0x00000020, 0x0000026d, 0xa6fa58f3, 0xf8c2c1dd,
-	 0x192a3f1b},
-	{0xcc20a5e3, 0x0000003b, 0x0000067a, 0x7740185a, 0x308b979a,
-	 0xccbaec1a},
-	{0xce589c95, 0x0000002b, 0x00000641, 0xd055e987, 0x40aae25b,
-	 0x7eabae4d},
-	{0x78edc885, 0x00000035, 0x000005be, 0xa39cb14b, 0x035b0d1f,
-	 0x28c72982},
-	{0x9d40a377, 0x0000003b, 0x00000038, 0x1f47ccd2, 0x197fbc9d,
-	 0xc3cd4d18},
-	{0x703d0e01, 0x0000003c, 0x000006f1, 0x88735e7c, 0xfed57c5a,
-	 0xbca8f0e7},
-	{0x776bf505, 0x0000000f, 0x000005b2, 0x5cc4fc01, 0xf32efb97,
-	 0x713f60b3},
-	{0x4a3e7854, 0x00000027, 0x000004b8, 0x8d923c82, 0x0cbfb4a2,
-	 0xebd08fd5},
-	{0x209172dd, 0x0000003b, 0x00000356, 0xb89e9c2b, 0xd7868138,
-	 0x64406c59},
-	{0x3ba4cc5b, 0x0000002f, 0x00000203, 0xe51601a9, 0x5b2a1032,
-	 0x7421890e},
-	{0xfc62f297, 0x00000000, 0x00000079, 0x71a8e1a2, 0x5d88685f,
-	 0xe9347603},
-	{0x64280b8b, 0x00000016, 0x000007ab, 0x0fa7a30c, 0xda3a455f,
-	 0x1bef9060},
-	{0x97dd724b, 0x00000033, 0x000007ad, 0x5788b2f4, 0xd7326d32,
-	 0x34720072},
-	{0x61394b52, 0x00000035, 0x00000571, 0xc66525f1, 0xcabe7fef,
-	 0x48310f59},
-	{0x29b4faff, 0x00000024, 0x0000006e, 0xca13751e, 0x993648e0,
-	 0x783a4213},
-	{0x29bfb1dc, 0x0000000b, 0x00000244, 0x436c43f7, 0x429f7a59,
-	 0x9e8efd41},
-	{0x86ae934b, 0x00000035, 0x00000104, 0x0760ec93, 0x9cf7d0f4,
-	 0xfc3d34a5},
-	{0xc4c1024e, 0x0000002e, 0x000006b1, 0x6516a3ec, 0x19321f9c,
-	 0x17a52ae2},
-	{0x3287a80a, 0x00000026, 0x00000496, 0x0b257eb1, 0x754ebd51,
-	 0x886d935a},
-	{0xa4db423e, 0x00000023, 0x0000045d, 0x9b3a66dc, 0x873e9f11,
-	 0xeaaeaeb2},
-	{0x7a1078df, 0x00000015, 0x0000014a, 0x8c2484c5, 0x6a628659,
-	 0x8e900a4b},
-	{0x6048bd5b, 0x00000006, 0x0000006a, 0x897e3559, 0xac9961af,
-	 0xd74662b1},
-	{0xd8f9ea20, 0x0000003d, 0x00000277, 0x60eb905b, 0xed2aaf99,
-	 0xd26752ba},
-	{0xea5ec3b4, 0x0000002a, 0x000004fe, 0x869965dc, 0x6c1f833b,
-	 0x8b1fcd62},
-	{0x2dfb005d, 0x00000016, 0x00000345, 0x6a3b117e, 0xf05e8521,
-	 0xf54342fe},
-	{0x5a214ade, 0x00000020, 0x000005b6, 0x467f70be, 0xcb22ccd3,
-	 0x5b95b988},
-	{0xf0ab9cca, 0x00000032, 0x00000515, 0xed223df3, 0x7f3ef01d,
-	 0x2e1176be},
-	{0x91b444f9, 0x0000002e, 0x000007f8, 0x84e9a983, 0x5676756f,
-	 0x66120546},
-	{0x1b5d2ddb, 0x0000002e, 0x0000012c, 0xba638c4c, 0x3f42047b,
-	 0xf256a5cc},
-	{0xd824d1bb, 0x0000003a, 0x000007b5, 0x6288653b, 0x3a3ebea0,
-	 0x4af1dd69},
-	{0x0470180c, 0x00000034, 0x000001f0, 0x9d5b80d6, 0x3de08195,
-	 0x56f0a04a},
-	{0xffaa3a3f, 0x00000036, 0x00000299, 0xf3a82ab8, 0x53e0c13d,
-	 0x74f6b6b2},
-	{0x6406cfeb, 0x00000023, 0x00000600, 0xa920b8e8, 0xe4e2acf4,
-	 0x085951fd},
-	{0xb24aaa38, 0x0000003e, 0x000004a1, 0x657cc328, 0x5077b2c3,
-	 0xc65387eb},
-	{0x58b2ab7c, 0x00000039, 0x000002b4, 0x3a17ee7e, 0x9dcb3643,
-	 0x1ca9257b},
-	{0x3db85970, 0x00000006, 0x000002b6, 0x95268b59, 0xb9812c10,
-	 0xfd196d76},
-	{0x857830c5, 0x00000003, 0x00000590, 0x4ef439d5, 0xf042161d,
-	 0x5ef88339},
-	{0xe1fcd978, 0x0000003e, 0x000007d8, 0xae8d8699, 0xce0a1ef5,
-	 0x2c3714d9},
-	{0xb982a768, 0x00000016, 0x000006e0, 0x62fad3df, 0x5f8a067b,
-	 0x58576548},
-	{0x1d581ce8, 0x0000001e, 0x0000058b, 0xf0f5da53, 0x26e39eee,
-	 0xfd7c57de},
-	{0x2456719b, 0x00000025, 0x00000503, 0x4296ac64, 0xd50e4c14,
-	 0xd5fedd59},
-	{0xfae6d8f2, 0x00000000, 0x0000055d, 0x057fdf2e, 0x2a31391a,
-	 0x1cc3b17b},
-	{0xcba828e3, 0x00000039, 0x000002ce, 0xe3f22351, 0x8f00877b,
-	 0x270eed73},
-	{0x13d25952, 0x0000000a, 0x0000072d, 0x76d4b4cc, 0x5eb67ec3,
-	 0x91ecbb11},
-	{0x0342be3f, 0x00000015, 0x00000599, 0xec75d9f1, 0x9d4d2826,
-	 0x05ed8d0c},
-	{0xeaa344e0, 0x00000014, 0x000004d8, 0x72a4c981, 0x2064ea06,
-	 0x0b09ad5b},
-	{0xbbb52021, 0x0000003b, 0x00000272, 0x04af99fc, 0xaf042d35,
-	 0xf8d511fb},
-	{0xb66384dc, 0x0000001d, 0x000007fc, 0xd7629116, 0x782bd801,
-	 0x5ad832cc},
-	{0x616c01b6, 0x00000022, 0x000002c8, 0x5b1dab30, 0x783ce7d2,
-	 0x1214d196},
-	{0xce2bdaad, 0x00000016, 0x0000062a, 0x932535c8, 0x3f02926d,
-	 0x5747218a},
-	{0x00fe84d7, 0x00000005, 0x00000205, 0x850e50aa, 0x753d649c,
-	 0xde8f14de},
-	{0xbebdcb4c, 0x00000006, 0x0000055d, 0xbeaa37a2, 0x2d8c9eba,
-	 0x3563b7b9},
-	{0xd8b1a02a, 0x00000010, 0x00000387, 0x5017d2fc, 0x503541a5,
-	 0x071475d0},
-	{0x3b96cad2, 0x00000036, 0x00000347, 0x1d2372ae, 0x926cd90b,
-	 0x54c79d60},
-	{0xc94c1ed7, 0x00000005, 0x0000038b, 0x9e9fdb22, 0x144a9178,
-	 0x4c53eee6},
-	{0x1aad454e, 0x00000025, 0x000002b2, 0xc3f6315c, 0x5c7a35b3,
-	 0x10137a3c},
-	{0xa4fec9a6, 0x00000000, 0x000006d6, 0x90be5080, 0xa4107605,
-	 0xaa9d6c73},
-	{0x1bbe71e2, 0x0000001f, 0x000002fd, 0x4e504c3b, 0x284ccaf1,
-	 0xb63d23e7},
-	{0x4201c7e4, 0x00000002, 0x000002b7, 0x7822e3f9, 0x0cc912a9,
-	 0x7f53e9cf},
-	{0x23fddc96, 0x00000003, 0x00000627, 0x8a385125, 0x07767e78,
-	 0x13c1cd83},
-	{0xd82ba25c, 0x00000016, 0x0000063e, 0x98e4148a, 0x283330c9,
-	 0x49ff5867},
-	{0x786f2032, 0x0000002d, 0x0000060f, 0xf201600a, 0xf561bfcd,
-	 0x8467f211},
-	{0xfebe4e1f, 0x0000002a, 0x000004f2, 0x95e51961, 0xfd80dcab,
-	 0x3f9683b2},
-	{0x1a6e0a39, 0x00000008, 0x00000672, 0x8af6c2a5, 0x78dd84cb,
-	 0x76a3f874},
-	{0x56000ab8, 0x0000000e, 0x000000e5, 0x36bacb8f, 0x22ee1f77,
-	 0x863b702f},
-	{0x4717fe0c, 0x00000000, 0x000006ec, 0x8439f342, 0x5c8e03da,
-	 0xdc6c58ff},
-	{0xd5d5d68e, 0x0000003c, 0x000003a3, 0x46fff083, 0x177d1b39,
-	 0x0622cc95},
-	{0xc25dd6c6, 0x00000024, 0x000006c0, 0x5ceb8eb4, 0x892b0d16,
-	 0xe85605cd},
-	{0xe9b11300, 0x00000023, 0x00000683, 0x07a5d59a, 0x6c6a3208,
-	 0x31da5f06},
-	{0x95cd285e, 0x00000001, 0x00000047, 0x7b3a4368, 0x0202c07e,
-	 0xa1f2e784},
-	{0xd9245a25, 0x0000001e, 0x000003a6, 0xd33c1841, 0x1936c0d5,
-	 0xb07cc616},
-	{0x103279db, 0x00000006, 0x0000039b, 0xca09b8a0, 0x77d62892,
-	 0xbf943b6c},
-	{0x1cba3172, 0x00000027, 0x000001c8, 0xcb377194, 0xebe682db,
-	 0x2c01af1c},
-	{0x8f613739, 0x0000000c, 0x000001df, 0xb4b0bc87, 0x7710bd43,
-	 0x0fe5f56d},
-	{0x1c6aa90d, 0x0000001b, 0x0000053c, 0x70559245, 0xda7894ac,
-	 0xf8943b2d},
-	{0xaabe5b93, 0x0000003d, 0x00000715, 0xcdbf42fa, 0x0c3b99e7,
-	 0xe4d89272},
-	{0xf15dd038, 0x00000006, 0x000006db, 0x6e104aea, 0x8d5967f2,
-	 0x7c2f6bbb},
-	{0x584dd49c, 0x00000020, 0x000007bc, 0x36b6cfd6, 0xad4e23b2,
-	 0xabbf388b},
-	{0x5d8c9506, 0x00000020, 0x00000470, 0x4c62378e, 0x31d92640,
-	 0x1dca1f4e},
-	{0xb80d17b0, 0x00000032, 0x00000346, 0x22a5bb88, 0x9a7ec89f,
-	 0x5c170e23},
-	{0xdaf0592e, 0x00000023, 0x000007b0, 0x3cab3f99, 0x9b1fdd99,
-	 0xc0e9d672},
-	{0x4793cc85, 0x0000000d, 0x00000706, 0xe82e04f6, 0xed3db6b7,
-	 0xc18bdc86},
-	{0x82ebf64e, 0x00000009, 0x000007c3, 0x69d590a9, 0x9efa8499,
-	 0xa874fcdd},
-	{0xb18a0319, 0x00000026, 0x000007db, 0x1cf98dcc, 0x8fa9ad6a,
-	 0x9dc0bb48},
+	{0x674bf11d, 0x00000038, 0x00000542, 0x0af6d466, 0xd8b6e4c1, 0xf6e93d6c},
+	{0x35c672c6, 0x0000003a, 0x000001aa, 0xc6d3dfba, 0x28aaf3ad, 0x0fe92aca},
+	{0x496da28e, 0x00000039, 0x000005af, 0xd933660f, 0x5d57e81f, 0x52e1ebb8},
+	{0x09a9b90e, 0x00000027, 0x000001f8, 0xb45fe007, 0xf45fca9a, 0x0798af9a},
+	{0xdc97e5a9, 0x00000025, 0x000003b6, 0xf81a3562, 0xe0126ba2, 0x18eb3152},
+	{0x47c58900, 0x0000000a, 0x000000b9, 0x8e58eccf, 0xf3afc793, 0xd00d08c7},
+	{0x292561e8, 0x0000000c, 0x00000403, 0xa2ba8aaf, 0x0b797aed, 0x8ba966bc},
+	{0x415037f6, 0x00000003, 0x00000676, 0xa17d52e8, 0x7f0fdf35, 0x11d694a2},
+	{0x3466e707, 0x00000026, 0x00000042, 0x258319be, 0x75c484a2, 0x6ab3208d},
+	{0xafd1281b, 0x00000023, 0x000002ee, 0x4428eaf8, 0x06c7ad10, 0xba4603c5},
+	{0xd3857b18, 0x00000028, 0x000004a2, 0x5c430821, 0xb062b7cb, 0xe6071c6f},
+	{0x1d825a8f, 0x0000002b, 0x0000050b, 0xd2c45f0c, 0xd68634e0, 0x179ec30a},
+	{0x5033e3bc, 0x0000000b, 0x00000078, 0xa3ea4113, 0xac6d31fb, 0x0903beb8},
+	{0x94f1fb5e, 0x0000000f, 0x000003a2, 0xfbfc50b1, 0x3cfe50ed, 0x6a7cb4fa},
+	{0xc9a0fe14, 0x00000009, 0x00000473, 0x5fb61894, 0x87070591, 0xdb535801},
+	{0x88a034b1, 0x0000001c, 0x000005ad, 0xc1b16053, 0x46f95c67, 0x92bed597},
+	{0xf0f72239, 0x00000020, 0x0000026d, 0xa6fa58f3, 0xf8c2c1dd, 0x192a3f1b},
+	{0xcc20a5e3, 0x0000003b, 0x0000067a, 0x7740185a, 0x308b979a, 0xccbaec1a},
+	{0xce589c95, 0x0000002b, 0x00000641, 0xd055e987, 0x40aae25b, 0x7eabae4d},
+	{0x78edc885, 0x00000035, 0x000005be, 0xa39cb14b, 0x035b0d1f, 0x28c72982},
+	{0x9d40a377, 0x0000003b, 0x00000038, 0x1f47ccd2, 0x197fbc9d, 0xc3cd4d18},
+	{0x703d0e01, 0x0000003c, 0x000006f1, 0x88735e7c, 0xfed57c5a, 0xbca8f0e7},
+	{0x776bf505, 0x0000000f, 0x000005b2, 0x5cc4fc01, 0xf32efb97, 0x713f60b3},
+	{0x4a3e7854, 0x00000027, 0x000004b8, 0x8d923c82, 0x0cbfb4a2, 0xebd08fd5},
+	{0x209172dd, 0x0000003b, 0x00000356, 0xb89e9c2b, 0xd7868138, 0x64406c59},
+	{0x3ba4cc5b, 0x0000002f, 0x00000203, 0xe51601a9, 0x5b2a1032, 0x7421890e},
+	{0xfc62f297, 0x00000000, 0x00000079, 0x71a8e1a2, 0x5d88685f, 0xe9347603},
+	{0x64280b8b, 0x00000016, 0x000007ab, 0x0fa7a30c, 0xda3a455f, 0x1bef9060},
+	{0x97dd724b, 0x00000033, 0x000007ad, 0x5788b2f4, 0xd7326d32, 0x34720072},
+	{0x61394b52, 0x00000035, 0x00000571, 0xc66525f1, 0xcabe7fef, 0x48310f59},
+	{0x29b4faff, 0x00000024, 0x0000006e, 0xca13751e, 0x993648e0, 0x783a4213},
+	{0x29bfb1dc, 0x0000000b, 0x00000244, 0x436c43f7, 0x429f7a59, 0x9e8efd41},
+	{0x86ae934b, 0x00000035, 0x00000104, 0x0760ec93, 0x9cf7d0f4, 0xfc3d34a5},
+	{0xc4c1024e, 0x0000002e, 0x000006b1, 0x6516a3ec, 0x19321f9c, 0x17a52ae2},
+	{0x3287a80a, 0x00000026, 0x00000496, 0x0b257eb1, 0x754ebd51, 0x886d935a},
+	{0xa4db423e, 0x00000023, 0x0000045d, 0x9b3a66dc, 0x873e9f11, 0xeaaeaeb2},
+	{0x7a1078df, 0x00000015, 0x0000014a, 0x8c2484c5, 0x6a628659, 0x8e900a4b},
+	{0x6048bd5b, 0x00000006, 0x0000006a, 0x897e3559, 0xac9961af, 0xd74662b1},
+	{0xd8f9ea20, 0x0000003d, 0x00000277, 0x60eb905b, 0xed2aaf99, 0xd26752ba},
+	{0xea5ec3b4, 0x0000002a, 0x000004fe, 0x869965dc, 0x6c1f833b, 0x8b1fcd62},
+	{0x2dfb005d, 0x00000016, 0x00000345, 0x6a3b117e, 0xf05e8521, 0xf54342fe},
+	{0x5a214ade, 0x00000020, 0x000005b6, 0x467f70be, 0xcb22ccd3, 0x5b95b988},
+	{0xf0ab9cca, 0x00000032, 0x00000515, 0xed223df3, 0x7f3ef01d, 0x2e1176be},
+	{0x91b444f9, 0x0000002e, 0x000007f8, 0x84e9a983, 0x5676756f, 0x66120546},
+	{0x1b5d2ddb, 0x0000002e, 0x0000012c, 0xba638c4c, 0x3f42047b, 0xf256a5cc},
+	{0xd824d1bb, 0x0000003a, 0x000007b5, 0x6288653b, 0x3a3ebea0, 0x4af1dd69},
+	{0x0470180c, 0x00000034, 0x000001f0, 0x9d5b80d6, 0x3de08195, 0x56f0a04a},
+	{0xffaa3a3f, 0x00000036, 0x00000299, 0xf3a82ab8, 0x53e0c13d, 0x74f6b6b2},
+	{0x6406cfeb, 0x00000023, 0x00000600, 0xa920b8e8, 0xe4e2acf4, 0x085951fd},
+	{0xb24aaa38, 0x0000003e, 0x000004a1, 0x657cc328, 0x5077b2c3, 0xc65387eb},
+	{0x58b2ab7c, 0x00000039, 0x000002b4, 0x3a17ee7e, 0x9dcb3643, 0x1ca9257b},
+	{0x3db85970, 0x00000006, 0x000002b6, 0x95268b59, 0xb9812c10, 0xfd196d76},
+	{0x857830c5, 0x00000003, 0x00000590, 0x4ef439d5, 0xf042161d, 0x5ef88339},
+	{0xe1fcd978, 0x0000003e, 0x000007d8, 0xae8d8699, 0xce0a1ef5, 0x2c3714d9},
+	{0xb982a768, 0x00000016, 0x000006e0, 0x62fad3df, 0x5f8a067b, 0x58576548},
+	{0x1d581ce8, 0x0000001e, 0x0000058b, 0xf0f5da53, 0x26e39eee, 0xfd7c57de},
+	{0x2456719b, 0x00000025, 0x00000503, 0x4296ac64, 0xd50e4c14, 0xd5fedd59},
+	{0xfae6d8f2, 0x00000000, 0x0000055d, 0x057fdf2e, 0x2a31391a, 0x1cc3b17b},
+	{0xcba828e3, 0x00000039, 0x000002ce, 0xe3f22351, 0x8f00877b, 0x270eed73},
+	{0x13d25952, 0x0000000a, 0x0000072d, 0x76d4b4cc, 0x5eb67ec3, 0x91ecbb11},
+	{0x0342be3f, 0x00000015, 0x00000599, 0xec75d9f1, 0x9d4d2826, 0x05ed8d0c},
+	{0xeaa344e0, 0x00000014, 0x000004d8, 0x72a4c981, 0x2064ea06, 0x0b09ad5b},
+	{0xbbb52021, 0x0000003b, 0x00000272, 0x04af99fc, 0xaf042d35, 0xf8d511fb},
+	{0xb66384dc, 0x0000001d, 0x000007fc, 0xd7629116, 0x782bd801, 0x5ad832cc},
+	{0x616c01b6, 0x00000022, 0x000002c8, 0x5b1dab30, 0x783ce7d2, 0x1214d196},
+	{0xce2bdaad, 0x00000016, 0x0000062a, 0x932535c8, 0x3f02926d, 0x5747218a},
+	{0x00fe84d7, 0x00000005, 0x00000205, 0x850e50aa, 0x753d649c, 0xde8f14de},
+	{0xbebdcb4c, 0x00000006, 0x0000055d, 0xbeaa37a2, 0x2d8c9eba, 0x3563b7b9},
+	{0xd8b1a02a, 0x00000010, 0x00000387, 0x5017d2fc, 0x503541a5, 0x071475d0},
+	{0x3b96cad2, 0x00000036, 0x00000347, 0x1d2372ae, 0x926cd90b, 0x54c79d60},
+	{0xc94c1ed7, 0x00000005, 0x0000038b, 0x9e9fdb22, 0x144a9178, 0x4c53eee6},
+	{0x1aad454e, 0x00000025, 0x000002b2, 0xc3f6315c, 0x5c7a35b3, 0x10137a3c},
+	{0xa4fec9a6, 0x00000000, 0x000006d6, 0x90be5080, 0xa4107605, 0xaa9d6c73},
+	{0x1bbe71e2, 0x0000001f, 0x000002fd, 0x4e504c3b, 0x284ccaf1, 0xb63d23e7},
+	{0x4201c7e4, 0x00000002, 0x000002b7, 0x7822e3f9, 0x0cc912a9, 0x7f53e9cf},
+	{0x23fddc96, 0x00000003, 0x00000627, 0x8a385125, 0x07767e78, 0x13c1cd83},
+	{0xd82ba25c, 0x00000016, 0x0000063e, 0x98e4148a, 0x283330c9, 0x49ff5867},
+	{0x786f2032, 0x0000002d, 0x0000060f, 0xf201600a, 0xf561bfcd, 0x8467f211},
+	{0xfebe4e1f, 0x0000002a, 0x000004f2, 0x95e51961, 0xfd80dcab, 0x3f9683b2},
+	{0x1a6e0a39, 0x00000008, 0x00000672, 0x8af6c2a5, 0x78dd84cb, 0x76a3f874},
+	{0x56000ab8, 0x0000000e, 0x000000e5, 0x36bacb8f, 0x22ee1f77, 0x863b702f},
+	{0x4717fe0c, 0x00000000, 0x000006ec, 0x8439f342, 0x5c8e03da, 0xdc6c58ff},
+	{0xd5d5d68e, 0x0000003c, 0x000003a3, 0x46fff083, 0x177d1b39, 0x0622cc95},
+	{0xc25dd6c6, 0x00000024, 0x000006c0, 0x5ceb8eb4, 0x892b0d16, 0xe85605cd},
+	{0xe9b11300, 0x00000023, 0x00000683, 0x07a5d59a, 0x6c6a3208, 0x31da5f06},
+	{0x95cd285e, 0x00000001, 0x00000047, 0x7b3a4368, 0x0202c07e, 0xa1f2e784},
+	{0xd9245a25, 0x0000001e, 0x000003a6, 0xd33c1841, 0x1936c0d5, 0xb07cc616},
+	{0x103279db, 0x00000006, 0x0000039b, 0xca09b8a0, 0x77d62892, 0xbf943b6c},
+	{0x1cba3172, 0x00000027, 0x000001c8, 0xcb377194, 0xebe682db, 0x2c01af1c},
+	{0x8f613739, 0x0000000c, 0x000001df, 0xb4b0bc87, 0x7710bd43, 0x0fe5f56d},
+	{0x1c6aa90d, 0x0000001b, 0x0000053c, 0x70559245, 0xda7894ac, 0xf8943b2d},
+	{0xaabe5b93, 0x0000003d, 0x00000715, 0xcdbf42fa, 0x0c3b99e7, 0xe4d89272},
+	{0xf15dd038, 0x00000006, 0x000006db, 0x6e104aea, 0x8d5967f2, 0x7c2f6bbb},
+	{0x584dd49c, 0x00000020, 0x000007bc, 0x36b6cfd6, 0xad4e23b2, 0xabbf388b},
+	{0x5d8c9506, 0x00000020, 0x00000470, 0x4c62378e, 0x31d92640, 0x1dca1f4e},
+	{0xb80d17b0, 0x00000032, 0x00000346, 0x22a5bb88, 0x9a7ec89f, 0x5c170e23},
+	{0xdaf0592e, 0x00000023, 0x000007b0, 0x3cab3f99, 0x9b1fdd99, 0xc0e9d672},
+	{0x4793cc85, 0x0000000d, 0x00000706, 0xe82e04f6, 0xed3db6b7, 0xc18bdc86},
+	{0x82ebf64e, 0x00000009, 0x000007c3, 0x69d590a9, 0x9efa8499, 0xa874fcdd},
+	{0xb18a0319, 0x00000026, 0x000007db, 0x1cf98dcc, 0x8fa9ad6a, 0x9dc0bb48},
 };
 
 #include <linux/time.h>
-- 
cgit 


From 6e95fcaa42e5078ac265964deebed597f9eae07a Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Wed, 30 Oct 2013 11:50:49 +0100
Subject: lib: crc32: add functionality to combine two crc32{, c}s in GF(2)

This patch adds a combinator to merge two or more crc32{,c}s
into a new one. This is useful for checksum computations of
fragmented skbs that use crc32/crc32c as checksums.

The arithmetics for combining both in the GF(2) was taken and
slightly modified from zlib. Only passing two crcs is insufficient
as two crcs and the length of the second piece is needed for
merging. The code is made generic, so that only polynomials
need to be passed for crc32_le resp. crc32c_le.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/crc32.h | 40 +++++++++++++++++++++++++
 lib/crc32.c           | 81 +++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 121 insertions(+)

diff --git a/include/linux/crc32.h b/include/linux/crc32.h
index 68267b64bb98..7d275c4fc011 100644
--- a/include/linux/crc32.h
+++ b/include/linux/crc32.h
@@ -11,8 +11,48 @@
 extern u32  crc32_le(u32 crc, unsigned char const *p, size_t len);
 extern u32  crc32_be(u32 crc, unsigned char const *p, size_t len);
 
+/**
+ * crc32_le_combine - Combine two crc32 check values into one. For two
+ * 		      sequences of bytes, seq1 and seq2 with lengths len1
+ * 		      and len2, crc32_le() check values were calculated
+ * 		      for each, crc1 and crc2.
+ *
+ * @crc1: crc32 of the first block
+ * @crc2: crc32 of the second block
+ * @len2: length of the second block
+ *
+ * Return: The crc32_le() check value of seq1 and seq2 concatenated,
+ * 	   requiring only crc1, crc2, and len2. Note: If seq_full denotes
+ * 	   the concatenated memory area of seq1 with seq2, and crc_full
+ * 	   the crc32_le() value of seq_full, then crc_full ==
+ * 	   crc32_le_combine(crc1, crc2, len2) when crc_full was seeded
+ * 	   with the same initializer as crc1, and crc2 seed was 0. See
+ * 	   also crc32_combine_test().
+ */
+extern u32  crc32_le_combine(u32 crc1, u32 crc2, size_t len2);
+
 extern u32  __crc32c_le(u32 crc, unsigned char const *p, size_t len);
 
+/**
+ * __crc32c_le_combine - Combine two crc32c check values into one. For two
+ * 			 sequences of bytes, seq1 and seq2 with lengths len1
+ * 			 and len2, __crc32c_le() check values were calculated
+ * 			 for each, crc1 and crc2.
+ *
+ * @crc1: crc32c of the first block
+ * @crc2: crc32c of the second block
+ * @len2: length of the second block
+ *
+ * Return: The __crc32c_le() check value of seq1 and seq2 concatenated,
+ * 	   requiring only crc1, crc2, and len2. Note: If seq_full denotes
+ * 	   the concatenated memory area of seq1 with seq2, and crc_full
+ * 	   the __crc32c_le() value of seq_full, then crc_full ==
+ * 	   __crc32c_le_combine(crc1, crc2, len2) when crc_full was
+ * 	   seeded with the same initializer as crc1, and crc2 seed
+ * 	   was 0. See also crc32c_combine_test().
+ */
+extern u32  __crc32c_le_combine(u32 crc1, u32 crc2, size_t len2);
+
 #define crc32(seed, data, length)  crc32_le(seed, (unsigned char const *)(data), length)
 
 /*
diff --git a/lib/crc32.c b/lib/crc32.c
index 429d61ce6aa0..595205cddc30 100644
--- a/lib/crc32.c
+++ b/lib/crc32.c
@@ -49,6 +49,30 @@ MODULE_AUTHOR("Matt Domsch <Matt_Domsch@dell.com>");
 MODULE_DESCRIPTION("Various CRC32 calculations");
 MODULE_LICENSE("GPL");
 
+#define GF2_DIM		32
+
+static u32 gf2_matrix_times(u32 *mat, u32 vec)
+{
+	u32 sum = 0;
+
+	while (vec) {
+		if (vec & 1)
+			sum ^= *mat;
+		vec >>= 1;
+		mat++;
+	}
+
+	return sum;
+}
+
+static void gf2_matrix_square(u32 *square, u32 *mat)
+{
+	int i;
+
+	for (i = 0; i < GF2_DIM; i++)
+		square[i] = gf2_matrix_times(mat, mat[i]);
+}
+
 #if CRC_LE_BITS > 8 || CRC_BE_BITS > 8
 
 /* implements slicing-by-4 or slicing-by-8 algorithm */
@@ -130,6 +154,52 @@ crc32_body(u32 crc, unsigned char const *buf, size_t len, const u32 (*tab)[256])
 }
 #endif
 
+/* For conditions of distribution and use, see copyright notice in zlib.h */
+static u32 crc32_generic_combine(u32 crc1, u32 crc2, size_t len2,
+				 u32 polynomial)
+{
+	u32 even[GF2_DIM]; /* Even-power-of-two zeros operator */
+	u32 odd[GF2_DIM];  /* Odd-power-of-two zeros operator  */
+	u32 row;
+	int i;
+
+	if (len2 <= 0)
+		return crc1;
+
+	/* Put operator for one zero bit in odd */
+	odd[0] = polynomial;
+	row = 1;
+	for (i = 1; i < GF2_DIM; i++) {
+		odd[i] = row;
+		row <<= 1;
+	}
+
+	gf2_matrix_square(even, odd); /* Put operator for two zero bits in even */
+	gf2_matrix_square(odd, even); /* Put operator for four zero bits in odd */
+
+	/* Apply len2 zeros to crc1 (first square will put the operator for one
+	 * zero byte, eight zero bits, in even).
+	 */
+	do {
+		/* Apply zeros operator for this bit of len2 */
+		gf2_matrix_square(even, odd);
+		if (len2 & 1)
+			crc1 = gf2_matrix_times(even, crc1);
+		len2 >>= 1;
+		/* If no more bits set, then done */
+		if (len2 == 0)
+			break;
+		/* Another iteration of the loop with odd and even swapped */
+		gf2_matrix_square(odd, even);
+		if (len2 & 1)
+			crc1 = gf2_matrix_times(odd, crc1);
+		len2 >>= 1;
+	} while (len2 != 0);
+
+	crc1 ^= crc2;
+	return crc1;
+}
+
 /**
  * crc32_le_generic() - Calculate bitwise little-endian Ethernet AUTODIN II
  *			CRC32/CRC32C
@@ -200,8 +270,19 @@ u32 __pure __crc32c_le(u32 crc, unsigned char const *p, size_t len)
 			(const u32 (*)[256])crc32ctable_le, CRC32C_POLY_LE);
 }
 #endif
+u32 __pure crc32_le_combine(u32 crc1, u32 crc2, size_t len2)
+{
+	return crc32_generic_combine(crc1, crc2, len2, CRCPOLY_LE);
+}
+
+u32 __pure __crc32c_le_combine(u32 crc1, u32 crc2, size_t len2)
+{
+	return crc32_generic_combine(crc1, crc2, len2, CRC32C_POLY_LE);
+}
 EXPORT_SYMBOL(crc32_le);
+EXPORT_SYMBOL(crc32_le_combine);
 EXPORT_SYMBOL(__crc32c_le);
+EXPORT_SYMBOL(__crc32c_le_combine);
 
 /**
  * crc32_be_generic() - Calculate bitwise big-endian Ethernet AUTODIN II CRC32
-- 
cgit 


From efba721f636ee016859d86d15748650119402b10 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Wed, 30 Oct 2013 11:50:50 +0100
Subject: lib: crc32: add test cases for crc32{, c}_combine routines

We already have 100 test cases for crcs itself, so split the test
buffer with a-prio known checksums, and test crc of two blocks
against crc of the whole block for the same results.

Output/result with CONFIG_CRC32_SELFTEST=y:

  [    2.687095] crc32: CRC_LE_BITS = 64, CRC_BE BITS = 64
  [    2.687097] crc32: self tests passed, processed 225944 bytes in 278177 nsec
  [    2.687383] crc32c: CRC_LE_BITS = 64
  [    2.687385] crc32c: self tests passed, processed 225944 bytes in 141708 nsec
  [    7.336771] crc32_combine: 113072 self tests passed
  [   12.050479] crc32c_combine: 113072 self tests passed
  [   17.633089] alg: No test for crc32 (crc32-pclmul)

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 lib/crc32.c | 72 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 72 insertions(+)

diff --git a/lib/crc32.c b/lib/crc32.c
index 595205cddc30..69dd124f0cfc 100644
--- a/lib/crc32.c
+++ b/lib/crc32.c
@@ -1031,6 +1031,40 @@ static int __init crc32c_test(void)
 	return 0;
 }
 
+static int __init crc32c_combine_test(void)
+{
+	int i, j;
+	int errors = 0, runs = 0;
+
+	for (i = 0; i < 100; i++) {
+		u32 crc_full;
+
+		crc_full = __crc32c_le(test[i].crc, test_buf + test[i].start,
+				       test[i].length);
+		for (j = 0; j <= test[i].length; ++j) {
+			u32 crc1, crc2;
+			u32 len1 = j, len2 = test[i].length - j;
+
+			crc1 = __crc32c_le(test[i].crc, test_buf +
+					   test[i].start, len1);
+			crc2 = __crc32c_le(0, test_buf + test[i].start +
+					   len1, len2);
+
+			if (!(crc_full == __crc32c_le_combine(crc1, crc2, len2) &&
+			      crc_full == test[i].crc32c_le))
+				errors++;
+			runs++;
+		}
+	}
+
+	if (errors)
+		pr_warn("crc32c_combine: %d/%d self tests failed\n", errors, runs);
+	else
+		pr_info("crc32c_combine: %d self tests passed\n", runs);
+
+	return 0;
+}
+
 static int __init crc32_test(void)
 {
 	int i;
@@ -1090,10 +1124,48 @@ static int __init crc32_test(void)
 	return 0;
 }
 
+static int __init crc32_combine_test(void)
+{
+	int i, j;
+	int errors = 0, runs = 0;
+
+	for (i = 0; i < 100; i++) {
+		u32 crc_full;
+
+		crc_full = crc32_le(test[i].crc, test_buf + test[i].start,
+				    test[i].length);
+		for (j = 0; j <= test[i].length; ++j) {
+			u32 crc1, crc2;
+			u32 len1 = j, len2 = test[i].length - j;
+
+			crc1 = crc32_le(test[i].crc, test_buf +
+					test[i].start, len1);
+			crc2 = crc32_le(0, test_buf + test[i].start +
+					len1, len2);
+
+			if (!(crc_full == crc32_le_combine(crc1, crc2, len2) &&
+			      crc_full == test[i].crc_le))
+				errors++;
+			runs++;
+		}
+	}
+
+	if (errors)
+		pr_warn("crc32_combine: %d/%d self tests failed\n", errors, runs);
+	else
+		pr_info("crc32_combine: %d self tests passed\n", runs);
+
+	return 0;
+}
+
 static int __init crc32test_init(void)
 {
 	crc32_test();
 	crc32c_test();
+
+	crc32_combine_test();
+	crc32c_combine_test();
+
 	return 0;
 }
 
-- 
cgit 


From 2817a336d4d533fb8b68719723cd60ea7dd7c09e Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Wed, 30 Oct 2013 11:50:51 +0100
Subject: net: skb_checksum: allow custom update/combine for walking skb

Currently, skb_checksum walks over 1) linearized, 2) frags[], and
3) frag_list data and calculats the one's complement, a 32 bit
result suitable for feeding into itself or csum_tcpudp_magic(),
but unsuitable for SCTP as we're calculating CRC32c there.

Hence, in order to not re-implement the very same function in
SCTP (and maybe other protocols) over and over again, use an
update() + combine() callback internally to allow for walking
over the skb with different algorithms.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/skbuff.h | 13 ++++++++++---
 include/net/checksum.h |  6 ++++++
 net/core/skbuff.c      | 31 +++++++++++++++++++++----------
 3 files changed, 37 insertions(+), 13 deletions(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 2c154976394b..44727b5d4981 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2360,8 +2360,6 @@ int skb_copy_datagram_const_iovec(const struct sk_buff *from, int offset,
 void skb_free_datagram(struct sock *sk, struct sk_buff *skb);
 void skb_free_datagram_locked(struct sock *sk, struct sk_buff *skb);
 int skb_kill_datagram(struct sock *sk, struct sk_buff *skb, unsigned int flags);
-__wsum skb_checksum(const struct sk_buff *skb, int offset, int len,
-		    __wsum csum);
 int skb_copy_bits(const struct sk_buff *skb, int offset, void *to, int len);
 int skb_store_bits(struct sk_buff *skb, int offset, const void *from, int len);
 __wsum skb_copy_and_csum_bits(const struct sk_buff *skb, int offset, u8 *to,
@@ -2373,9 +2371,18 @@ void skb_copy_and_csum_dev(const struct sk_buff *skb, u8 *to);
 void skb_split(struct sk_buff *skb, struct sk_buff *skb1, const u32 len);
 int skb_shift(struct sk_buff *tgt, struct sk_buff *skb, int shiftlen);
 void skb_scrub_packet(struct sk_buff *skb, bool xnet);
-
 struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features);
 
+struct skb_checksum_ops {
+	__wsum (*update)(const void *mem, int len, __wsum wsum);
+	__wsum (*combine)(__wsum csum, __wsum csum2, int offset, int len);
+};
+
+__wsum __skb_checksum(const struct sk_buff *skb, int offset, int len,
+		      __wsum csum, const struct skb_checksum_ops *ops);
+__wsum skb_checksum(const struct sk_buff *skb, int offset, int len,
+		    __wsum csum);
+
 static inline void *skb_header_pointer(const struct sk_buff *skb, int offset,
 				       int len, void *buffer)
 {
diff --git a/include/net/checksum.h b/include/net/checksum.h
index 8f59ca50477c..15f33fde826e 100644
--- a/include/net/checksum.h
+++ b/include/net/checksum.h
@@ -78,6 +78,12 @@ csum_block_add(__wsum csum, __wsum csum2, int offset)
 	return csum_add(csum, (__force __wsum)sum);
 }
 
+static inline __wsum
+csum_block_add_ext(__wsum csum, __wsum csum2, int offset, int len)
+{
+	return csum_block_add(csum, csum2, offset);
+}
+
 static inline __wsum
 csum_block_sub(__wsum csum, __wsum csum2, int offset)
 {
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 0ab32faa520f..31aab5376cb4 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1928,9 +1928,8 @@ fault:
 EXPORT_SYMBOL(skb_store_bits);
 
 /* Checksum skb data. */
-
-__wsum skb_checksum(const struct sk_buff *skb, int offset,
-			  int len, __wsum csum)
+__wsum __skb_checksum(const struct sk_buff *skb, int offset, int len,
+		      __wsum csum, const struct skb_checksum_ops *ops)
 {
 	int start = skb_headlen(skb);
 	int i, copy = start - offset;
@@ -1941,7 +1940,7 @@ __wsum skb_checksum(const struct sk_buff *skb, int offset,
 	if (copy > 0) {
 		if (copy > len)
 			copy = len;
-		csum = csum_partial(skb->data + offset, copy, csum);
+		csum = ops->update(skb->data + offset, copy, csum);
 		if ((len -= copy) == 0)
 			return csum;
 		offset += copy;
@@ -1962,10 +1961,10 @@ __wsum skb_checksum(const struct sk_buff *skb, int offset,
 			if (copy > len)
 				copy = len;
 			vaddr = kmap_atomic(skb_frag_page(frag));
-			csum2 = csum_partial(vaddr + frag->page_offset +
-					     offset - start, copy, 0);
+			csum2 = ops->update(vaddr + frag->page_offset +
+					    offset - start, copy, 0);
 			kunmap_atomic(vaddr);
-			csum = csum_block_add(csum, csum2, pos);
+			csum = ops->combine(csum, csum2, pos, copy);
 			if (!(len -= copy))
 				return csum;
 			offset += copy;
@@ -1984,9 +1983,9 @@ __wsum skb_checksum(const struct sk_buff *skb, int offset,
 			__wsum csum2;
 			if (copy > len)
 				copy = len;
-			csum2 = skb_checksum(frag_iter, offset - start,
-					     copy, 0);
-			csum = csum_block_add(csum, csum2, pos);
+			csum2 = __skb_checksum(frag_iter, offset - start,
+					       copy, 0, ops);
+			csum = ops->combine(csum, csum2, pos, copy);
 			if ((len -= copy) == 0)
 				return csum;
 			offset += copy;
@@ -1998,6 +1997,18 @@ __wsum skb_checksum(const struct sk_buff *skb, int offset,
 
 	return csum;
 }
+EXPORT_SYMBOL(__skb_checksum);
+
+__wsum skb_checksum(const struct sk_buff *skb, int offset,
+		    int len, __wsum csum)
+{
+	const struct skb_checksum_ops ops = {
+		.update  = csum_partial,
+		.combine = csum_block_add_ext,
+	};
+
+	return __skb_checksum(skb, offset, len, csum, &ops);
+}
 EXPORT_SYMBOL(skb_checksum);
 
 /* Both of above in one bottle. */
-- 
cgit 


From e6d8b64b34aa8a9fe39609bc2db8a243b0331ceb Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Wed, 30 Oct 2013 11:50:52 +0100
Subject: net: sctp: fix and consolidate SCTP checksumming code

This fixes an outstanding bug found through IPVS, where SCTP packets
with skb->data_len > 0 (non-linearized) and empty frag_list, but data
accumulated in frags[] member, are forwarded with incorrect checksum
letting SCTP initial handshake fail on some systems. Linearizing each
SCTP skb in IPVS to prevent that would not be a good solution as
this leads to an additional and unnecessary performance penalty on
the load-balancer itself for no good reason (as we actually only want
to update the checksum, and can do that in a different/better way
presented here).

The actual problem is elsewhere, namely, that SCTP's checksumming
in sctp_compute_cksum() does not take frags[] into account like
skb_checksum() does. So while we are fixing this up, we better reuse
the existing code that we have anyway in __skb_checksum() and use it
for walking through the data doing checksumming. This will not only
fix this issue, but also consolidates some SCTP code with core
sk_buff code, bringing it closer together and removing respectively
avoiding reimplementation of skb_checksum() for no good reason.

As crc32c() can use hardware implementation within the crypto layer,
we leave that intact (it wraps around / falls back to e.g. slice-by-8
algorithm in __crc32c_le() otherwise); plus use the __crc32c_le_combine()
combinator for crc32c blocks.

Also, we remove all other SCTP checksumming code, so that we only
have to use sctp_compute_cksum() from now on; for doing that, we need
to transform SCTP checkumming in output path slightly, and can leave
the rest intact.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/sctp/checksum.h | 56 +++++++++++++++------------------------------
 net/sctp/output.c           |  9 +-------
 2 files changed, 20 insertions(+), 45 deletions(-)

diff --git a/include/net/sctp/checksum.h b/include/net/sctp/checksum.h
index 259924d63ba6..6bd44fe94c26 100644
--- a/include/net/sctp/checksum.h
+++ b/include/net/sctp/checksum.h
@@ -42,56 +42,38 @@
 #include <linux/types.h>
 #include <net/sctp/sctp.h>
 #include <linux/crc32c.h>
+#include <linux/crc32.h>
 
-static inline __u32 sctp_crc32c(__u32 crc, u8 *buffer, u16 length)
+static inline __wsum sctp_csum_update(const void *buff, int len, __wsum sum)
 {
-	return crc32c(crc, buffer, length);
-}
-
-static inline __u32 sctp_start_cksum(__u8 *buffer, __u16 length)
-{
-	__u32 crc = ~(__u32)0;
-	__u8  zero[sizeof(__u32)] = {0};
-
-	/* Optimize this routine to be SCTP specific, knowing how
-	 * to skip the checksum field of the SCTP header.
+	/* This uses the crypto implementation of crc32c, which is either
+	 * implemented w/ hardware support or resolves to __crc32c_le().
 	 */
-
-	/* Calculate CRC up to the checksum. */
-	crc = sctp_crc32c(crc, buffer, sizeof(struct sctphdr) - sizeof(__u32));
-
-	/* Skip checksum field of the header. */
-	crc = sctp_crc32c(crc, zero, sizeof(__u32));
-
-	/* Calculate the rest of the CRC. */
-	crc = sctp_crc32c(crc, &buffer[sizeof(struct sctphdr)],
-			    length - sizeof(struct sctphdr));
-	return crc;
-}
-
-static inline __u32 sctp_update_cksum(__u8 *buffer, __u16 length, __u32 crc32)
-{
-	return sctp_crc32c(crc32, buffer, length);
+	return crc32c(sum, buff, len);
 }
 
-static inline __le32 sctp_end_cksum(__u32 crc32)
+static inline __wsum sctp_csum_combine(__wsum csum, __wsum csum2,
+				       int offset, int len)
 {
-	return cpu_to_le32(~crc32);
+	return __crc32c_le_combine(csum, csum2, len);
 }
 
-/* Calculate the CRC32C checksum of an SCTP packet.  */
 static inline __le32 sctp_compute_cksum(const struct sk_buff *skb,
 					unsigned int offset)
 {
-	const struct sk_buff *iter;
+	struct sctphdr *sh = sctp_hdr(skb);
+        __le32 ret, old = sh->checksum;
+	const struct skb_checksum_ops ops = {
+		.update  = sctp_csum_update,
+		.combine = sctp_csum_combine,
+	};
 
-	__u32 crc32 = sctp_start_cksum(skb->data + offset,
-				       skb_headlen(skb) - offset);
-	skb_walk_frags(skb, iter)
-		crc32 = sctp_update_cksum((__u8 *) iter->data,
-					  skb_headlen(iter), crc32);
+	sh->checksum = 0;
+	ret = cpu_to_le32(~__skb_checksum(skb, offset, skb->len - offset,
+					  ~(__u32)0, &ops));
+	sh->checksum = old;
 
-	return sctp_end_cksum(crc32);
+	return ret;
 }
 
 #endif /* __sctp_checksum_h__ */
diff --git a/net/sctp/output.c b/net/sctp/output.c
index 319137340d15..e650978daf27 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -390,7 +390,6 @@ int sctp_packet_transmit(struct sctp_packet *packet)
 	__u8 has_data = 0;
 	struct dst_entry *dst = tp->dst;
 	unsigned char *auth = NULL;	/* pointer to auth in skb data */
-	__u32 cksum_buf_len = sizeof(struct sctphdr);
 
 	pr_debug("%s: packet:%p\n", __func__, packet);
 
@@ -493,7 +492,6 @@ int sctp_packet_transmit(struct sctp_packet *packet)
 		if (chunk == packet->auth)
 			auth = skb_tail_pointer(nskb);
 
-		cksum_buf_len += chunk->skb->len;
 		memcpy(skb_put(nskb, chunk->skb->len),
 			       chunk->skb->data, chunk->skb->len);
 
@@ -538,12 +536,7 @@ int sctp_packet_transmit(struct sctp_packet *packet)
 	if (!sctp_checksum_disable) {
 		if (!(dst->dev->features & NETIF_F_SCTP_CSUM) ||
 		    (dst_xfrm(dst) != NULL) || packet->ipfragok) {
-			__u32 crc32 = sctp_start_cksum((__u8 *)sh, cksum_buf_len);
-
-			/* 3) Put the resultant value into the checksum field in the
-			 *    common header, and leave the rest of the bits unchanged.
-			 */
-			sh->checksum = sctp_end_cksum(crc32);
+			sh->checksum = sctp_compute_cksum(nskb, 0);
 		} else {
 			/* no need to seed pseudo checksum for SCTP */
 			nskb->ip_summed = CHECKSUM_PARTIAL;
-- 
cgit 


From 74d332c13b2148ae934ea94dac1745ae92efe8e5 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 30 Oct 2013 13:10:44 -0700
Subject: net: extend net_device allocation to vmalloc()

Joby Poriyath provided a xen-netback patch to reduce the size of
xenvif structure as some netdev allocation could fail under
memory pressure/fragmentation.

This patch is handling the problem at the core level, allowing
any netdev structures to use vmalloc() if kmalloc() failed.

As vmalloc() adds overhead on a critical network path, add __GFP_REPEAT
to kzalloc() flags to do this fallback only when really needed.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Joby Poriyath <joby.poriyath@citrix.com>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 Documentation/networking/netdevices.txt | 10 +++++-----
 include/linux/netdevice.h               |  1 +
 net/core/dev.c                          | 22 +++++++++++++++++-----
 net/core/net-sysfs.c                    |  2 +-
 4 files changed, 24 insertions(+), 11 deletions(-)

diff --git a/Documentation/networking/netdevices.txt b/Documentation/networking/netdevices.txt
index c7ecc7080494..0b1cf6b2a592 100644
--- a/Documentation/networking/netdevices.txt
+++ b/Documentation/networking/netdevices.txt
@@ -10,12 +10,12 @@ network devices.
 struct net_device allocation rules
 ==================================
 Network device structures need to persist even after module is unloaded and
-must be allocated with kmalloc.  If device has registered successfully,
-it will be freed on last use by free_netdev.  This is required to handle the
-pathologic case cleanly (example: rmmod mydriver </sys/class/net/myeth/mtu )
+must be allocated with alloc_netdev_mqs() and friends.
+If device has registered successfully, it will be freed on last use
+by free_netdev(). This is required to handle the pathologic case cleanly
+(example: rmmod mydriver </sys/class/net/myeth/mtu )
 
-There are routines in net_init.c to handle the common cases of
-alloc_etherdev, alloc_netdev.  These reserve extra space for driver
+alloc_netdev_mqs()/alloc_netdev() reserve extra space for driver
 private data which gets freed when the network device is freed. If
 separately allocated data is attached to the network device
 (netdev_priv(dev)) then it is up to the module exit handler to free that.
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index cb1d918ecdf1..e6353cafbf05 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1800,6 +1800,7 @@ static inline void unregister_netdevice(struct net_device *dev)
 
 int netdev_refcnt_read(const struct net_device *dev);
 void free_netdev(struct net_device *dev);
+void netdev_freemem(struct net_device *dev);
 void synchronize_net(void);
 int init_dummy_netdev(struct net_device *dev);
 
diff --git a/net/core/dev.c b/net/core/dev.c
index 0054c8c75f50..0e6136546a8c 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -6196,6 +6196,16 @@ void netdev_set_default_ethtool_ops(struct net_device *dev,
 }
 EXPORT_SYMBOL_GPL(netdev_set_default_ethtool_ops);
 
+void netdev_freemem(struct net_device *dev)
+{
+	char *addr = (char *)dev - dev->padded;
+
+	if (is_vmalloc_addr(addr))
+		vfree(addr);
+	else
+		kfree(addr);
+}
+
 /**
  *	alloc_netdev_mqs - allocate network device
  *	@sizeof_priv:	size of private data to allocate space for
@@ -6239,7 +6249,9 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
 	/* ensure 32-byte alignment of whole construct */
 	alloc_size += NETDEV_ALIGN - 1;
 
-	p = kzalloc(alloc_size, GFP_KERNEL);
+	p = kzalloc(alloc_size, GFP_KERNEL | __GFP_NOWARN | __GFP_REPEAT);
+	if (!p)
+		p = vzalloc(alloc_size);
 	if (!p)
 		return NULL;
 
@@ -6248,7 +6260,7 @@ struct net_device *alloc_netdev_mqs(int sizeof_priv, const char *name,
 
 	dev->pcpu_refcnt = alloc_percpu(int);
 	if (!dev->pcpu_refcnt)
-		goto free_p;
+		goto free_dev;
 
 	if (dev_addr_init(dev))
 		goto free_pcpu;
@@ -6301,8 +6313,8 @@ free_pcpu:
 	kfree(dev->_rx);
 #endif
 
-free_p:
-	kfree(p);
+free_dev:
+	netdev_freemem(dev);
 	return NULL;
 }
 EXPORT_SYMBOL(alloc_netdev_mqs);
@@ -6339,7 +6351,7 @@ void free_netdev(struct net_device *dev)
 
 	/*  Compatibility with error handling in drivers */
 	if (dev->reg_state == NETREG_UNINITIALIZED) {
-		kfree((char *)dev - dev->padded);
+		netdev_freemem(dev);
 		return;
 	}
 
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index d954b56b4e47..d03f2c9750fa 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -1263,7 +1263,7 @@ static void netdev_release(struct device *d)
 	BUG_ON(dev->reg_state != NETREG_RELEASED);
 
 	kfree(dev->ifalias);
-	kfree((char *)dev - dev->padded);
+	netdev_freemem(dev);
 }
 
 static const void *net_namespace(struct device *d)
-- 
cgit 


From f421436a591d34fa5279b54a96ac07d70250cc8d Mon Sep 17 00:00:00 2001
From: Arvid Brodin <Arvid.Brodin@xdin.com>
Date: Wed, 30 Oct 2013 21:10:47 +0100
Subject: net/hsr: Add support for the High-availability Seamless Redundancy
 protocol (HSRv0)

High-availability Seamless Redundancy ("HSR") provides instant failover
redundancy for Ethernet networks. It requires a special network topology where
all nodes are connected in a ring (each node having two physical network
interfaces). It is suited for applications that demand high availability and
very short reaction time.

HSR acts on the Ethernet layer, using a registered Ethernet protocol type to
send special HSR frames in both directions over the ring. The driver creates
virtual network interfaces that can be used just like any ordinary Linux
network interface, for IP/TCP/UDP traffic etc. All nodes in the network ring
must be HSR capable.

This code is a "best effort" to comply with the HSR standard as described in
IEC 62439-3:2010 (HSRv0).

Signed-off-by: Arvid Brodin <arvid.brodin@xdin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/uapi/linux/hsr_netlink.h |  50 ++++
 include/uapi/linux/if_ether.h    |   1 +
 include/uapi/linux/if_link.h     |  13 +
 net/Kconfig                      |   1 +
 net/Makefile                     |   1 +
 net/hsr/Kconfig                  |  27 ++
 net/hsr/Makefile                 |   7 +
 net/hsr/hsr_device.c             | 596 +++++++++++++++++++++++++++++++++++++++
 net/hsr/hsr_device.h             |  29 ++
 net/hsr/hsr_framereg.c           | 503 +++++++++++++++++++++++++++++++++
 net/hsr/hsr_framereg.h           |  53 ++++
 net/hsr/hsr_main.c               | 469 ++++++++++++++++++++++++++++++
 net/hsr/hsr_main.h               | 166 +++++++++++
 net/hsr/hsr_netlink.c            | 457 ++++++++++++++++++++++++++++++
 net/hsr/hsr_netlink.h            |  30 ++
 15 files changed, 2403 insertions(+)
 create mode 100644 include/uapi/linux/hsr_netlink.h
 create mode 100644 net/hsr/Kconfig
 create mode 100644 net/hsr/Makefile
 create mode 100644 net/hsr/hsr_device.c
 create mode 100644 net/hsr/hsr_device.h
 create mode 100644 net/hsr/hsr_framereg.c
 create mode 100644 net/hsr/hsr_framereg.h
 create mode 100644 net/hsr/hsr_main.c
 create mode 100644 net/hsr/hsr_main.h
 create mode 100644 net/hsr/hsr_netlink.c
 create mode 100644 net/hsr/hsr_netlink.h

diff --git a/include/uapi/linux/hsr_netlink.h b/include/uapi/linux/hsr_netlink.h
new file mode 100644
index 000000000000..2475cb8a53af
--- /dev/null
+++ b/include/uapi/linux/hsr_netlink.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2011-2013 Autronica Fire and Security AS
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * Author(s):
+ *	2011-2013 Arvid Brodin, arvid.brodin@xdin.com
+ */
+
+#ifndef __UAPI_HSR_NETLINK_H
+#define __UAPI_HSR_NETLINK_H
+
+/* Generic Netlink HSR family definition
+ */
+
+/* attributes */
+enum {
+	HSR_A_UNSPEC,
+	HSR_A_NODE_ADDR,
+	HSR_A_IFINDEX,
+	HSR_A_IF1_AGE,
+	HSR_A_IF2_AGE,
+	HSR_A_NODE_ADDR_B,
+	HSR_A_IF1_SEQ,
+	HSR_A_IF2_SEQ,
+	HSR_A_IF1_IFINDEX,
+	HSR_A_IF2_IFINDEX,
+	HSR_A_ADDR_B_IFINDEX,
+	__HSR_A_MAX,
+};
+#define HSR_A_MAX (__HSR_A_MAX - 1)
+
+
+/* commands */
+enum {
+	HSR_C_UNSPEC,
+	HSR_C_RING_ERROR,
+	HSR_C_NODE_DOWN,
+	HSR_C_GET_NODE_STATUS,
+	HSR_C_SET_NODE_STATUS,
+	HSR_C_GET_NODE_LIST,
+	HSR_C_SET_NODE_LIST,
+	__HSR_C_MAX,
+};
+#define HSR_C_MAX (__HSR_C_MAX - 1)
+
+#endif /* __UAPI_HSR_NETLINK_H */
diff --git a/include/uapi/linux/if_ether.h b/include/uapi/linux/if_ether.h
index ade07f1c491a..2ce0f6a78fa5 100644
--- a/include/uapi/linux/if_ether.h
+++ b/include/uapi/linux/if_ether.h
@@ -85,6 +85,7 @@
 #define ETH_P_8021AH	0x88E7          /* 802.1ah Backbone Service Tag */
 #define ETH_P_MVRP	0x88F5          /* 802.1Q MVRP                  */
 #define ETH_P_1588	0x88F7		/* IEEE 1588 Timesync */
+#define ETH_P_PRP	0x88FB		/* IEC 62439-3 PRP/HSRv0	*/
 #define ETH_P_FCOE	0x8906		/* Fibre Channel over Ethernet  */
 #define ETH_P_TDLS	0x890D          /* TDLS */
 #define ETH_P_FIP	0x8914		/* FCoE Initialization Protocol */
diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index 8a1e346243b7..b78566f59aba 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -481,4 +481,17 @@ enum {
 
 #define IFLA_IPOIB_MAX (__IFLA_IPOIB_MAX - 1)
 
+
+/* HSR section */
+
+enum {
+	IFLA_HSR_UNSPEC,
+	IFLA_HSR_SLAVE1,
+	IFLA_HSR_SLAVE2,
+	IFLA_HSR_MULTICAST_SPEC,
+	__IFLA_HSR_MAX,
+};
+
+#define IFLA_HSR_MAX (__IFLA_HSR_MAX - 1)
+
 #endif /* _UAPI_LINUX_IF_LINK_H */
diff --git a/net/Kconfig b/net/Kconfig
index b50dacc072f0..0715db64a5c3 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -220,6 +220,7 @@ source "net/openvswitch/Kconfig"
 source "net/vmw_vsock/Kconfig"
 source "net/netlink/Kconfig"
 source "net/mpls/Kconfig"
+source "net/hsr/Kconfig"
 
 config RPS
 	boolean
diff --git a/net/Makefile b/net/Makefile
index 9492e8cb64e9..8fa2f91517f1 100644
--- a/net/Makefile
+++ b/net/Makefile
@@ -71,3 +71,4 @@ obj-$(CONFIG_NFC)		+= nfc/
 obj-$(CONFIG_OPENVSWITCH)	+= openvswitch/
 obj-$(CONFIG_VSOCKETS)	+= vmw_vsock/
 obj-$(CONFIG_NET_MPLS_GSO)	+= mpls/
+obj-$(CONFIG_HSR)		+= hsr/
diff --git a/net/hsr/Kconfig b/net/hsr/Kconfig
new file mode 100644
index 000000000000..0d3d709052ca
--- /dev/null
+++ b/net/hsr/Kconfig
@@ -0,0 +1,27 @@
+#
+# IEC 62439-3 High-availability Seamless Redundancy
+#
+
+config HSR
+	tristate "High-availability Seamless Redundancy (HSR)"
+	---help---
+	  If you say Y here, then your Linux box will be able to act as a
+	  DANH ("Doubly attached node implementing HSR"). For this to work,
+	  your Linux box needs (at least) two physical Ethernet interfaces,
+	  and it must be connected as a node in a ring network together with
+	  other HSR capable nodes.
+
+	  All Ethernet frames sent over the hsr device will be sent in both
+	  directions on the ring (over both slave ports), giving a redundant,
+	  instant fail-over network. Each HSR node in the ring acts like a
+	  bridge for HSR frames, but filters frames that have been forwarded
+	  earlier.
+
+	  This code is a "best effort" to comply with the HSR standard as
+	  described in IEC 62439-3:2010 (HSRv0), but no compliancy tests have
+	  been made.
+
+	  You need to perform any and all necessary tests yourself before
+	  relying on this code in a safety critical system!
+
+	  If unsure, say N.
diff --git a/net/hsr/Makefile b/net/hsr/Makefile
new file mode 100644
index 000000000000..b68359f181cc
--- /dev/null
+++ b/net/hsr/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for HSR
+#
+
+obj-$(CONFIG_HSR)	+= hsr.o
+
+hsr-y			:= hsr_main.o hsr_framereg.o hsr_device.o hsr_netlink.o
diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c
new file mode 100644
index 000000000000..cac505f166d5
--- /dev/null
+++ b/net/hsr/hsr_device.c
@@ -0,0 +1,596 @@
+/* Copyright 2011-2013 Autronica Fire and Security AS
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * Author(s):
+ *	2011-2013 Arvid Brodin, arvid.brodin@xdin.com
+ *
+ * This file contains device methods for creating, using and destroying
+ * virtual HSR devices.
+ */
+
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <linux/etherdevice.h>
+#include <linux/if_arp.h>
+#include <linux/rtnetlink.h>
+#include <linux/pkt_sched.h>
+#include "hsr_device.h"
+#include "hsr_framereg.h"
+#include "hsr_main.h"
+
+
+static bool is_admin_up(struct net_device *dev)
+{
+	return dev && (dev->flags & IFF_UP);
+}
+
+static bool is_slave_up(struct net_device *dev)
+{
+	return dev && is_admin_up(dev) && netif_oper_up(dev);
+}
+
+static void __hsr_set_operstate(struct net_device *dev, int transition)
+{
+	write_lock_bh(&dev_base_lock);
+	if (dev->operstate != transition) {
+		dev->operstate = transition;
+		write_unlock_bh(&dev_base_lock);
+		netdev_state_change(dev);
+	} else {
+		write_unlock_bh(&dev_base_lock);
+	}
+}
+
+void hsr_set_operstate(struct net_device *hsr_dev, struct net_device *slave1,
+		       struct net_device *slave2)
+{
+	if (!is_admin_up(hsr_dev)) {
+		__hsr_set_operstate(hsr_dev, IF_OPER_DOWN);
+		return;
+	}
+
+	if (is_slave_up(slave1) || is_slave_up(slave2))
+		__hsr_set_operstate(hsr_dev, IF_OPER_UP);
+	else
+		__hsr_set_operstate(hsr_dev, IF_OPER_LOWERLAYERDOWN);
+}
+
+void hsr_set_carrier(struct net_device *hsr_dev, struct net_device *slave1,
+		     struct net_device *slave2)
+{
+	if (is_slave_up(slave1) || is_slave_up(slave2))
+		netif_carrier_on(hsr_dev);
+	else
+		netif_carrier_off(hsr_dev);
+}
+
+
+void hsr_check_announce(struct net_device *hsr_dev, int old_operstate)
+{
+	struct hsr_priv *hsr_priv;
+
+	hsr_priv = netdev_priv(hsr_dev);
+
+	if ((hsr_dev->operstate == IF_OPER_UP) && (old_operstate != IF_OPER_UP)) {
+		/* Went up */
+		hsr_priv->announce_count = 0;
+		hsr_priv->announce_timer.expires = jiffies +
+				msecs_to_jiffies(HSR_ANNOUNCE_INTERVAL);
+		add_timer(&hsr_priv->announce_timer);
+	}
+
+	if ((hsr_dev->operstate != IF_OPER_UP) && (old_operstate == IF_OPER_UP))
+		/* Went down */
+		del_timer(&hsr_priv->announce_timer);
+}
+
+
+int hsr_get_max_mtu(struct hsr_priv *hsr_priv)
+{
+	int mtu_max;
+
+	if (hsr_priv->slave[0] && hsr_priv->slave[1])
+		mtu_max = min(hsr_priv->slave[0]->mtu, hsr_priv->slave[1]->mtu);
+	else if (hsr_priv->slave[0])
+		mtu_max = hsr_priv->slave[0]->mtu;
+	else if (hsr_priv->slave[1])
+		mtu_max = hsr_priv->slave[1]->mtu;
+	else
+		mtu_max = HSR_TAGLEN;
+
+	return mtu_max - HSR_TAGLEN;
+}
+
+static int hsr_dev_change_mtu(struct net_device *dev, int new_mtu)
+{
+	struct hsr_priv *hsr_priv;
+
+	hsr_priv = netdev_priv(dev);
+
+	if (new_mtu > hsr_get_max_mtu(hsr_priv)) {
+		netdev_info(hsr_priv->dev, "A HSR master's MTU cannot be greater than the smallest MTU of its slaves minus the HSR Tag length (%d octets).\n",
+			    HSR_TAGLEN);
+		return -EINVAL;
+	}
+
+	dev->mtu = new_mtu;
+
+	return 0;
+}
+
+static int hsr_dev_open(struct net_device *dev)
+{
+	struct hsr_priv *hsr_priv;
+	int i;
+	char *slave_name;
+
+	hsr_priv = netdev_priv(dev);
+
+	for (i = 0; i < HSR_MAX_SLAVE; i++) {
+		if (hsr_priv->slave[i])
+			slave_name = hsr_priv->slave[i]->name;
+		else
+			slave_name = "null";
+
+		if (!is_slave_up(hsr_priv->slave[i]))
+			netdev_warn(dev, "Slave %c (%s) is not up; please bring it up to get a working HSR network\n",
+				    'A' + i, slave_name);
+	}
+
+	return 0;
+}
+
+static int hsr_dev_close(struct net_device *dev)
+{
+	/* Nothing to do here. We could try to restore the state of the slaves
+	 * to what they were before being changed by the hsr master dev's state,
+	 * but they might have been changed manually in the mean time too, so
+	 * taking them up or down here might be confusing and is probably not a
+	 * good idea.
+	 */
+	return 0;
+}
+
+
+static void hsr_fill_tag(struct hsr_ethhdr *hsr_ethhdr, struct hsr_priv *hsr_priv)
+{
+	unsigned long irqflags;
+
+	/* IEC 62439-1:2010, p 48, says the 4-bit "path" field can take values
+	 * between 0001-1001 ("ring identifier", for regular HSR frames),
+	 * or 1111 ("HSR management", supervision frames). Unfortunately, the
+	 * spec writers forgot to explain what a "ring identifier" is, or
+	 * how it is used. So we just set this to 0001 for regular frames,
+	 * and 1111 for supervision frames.
+	 */
+	set_hsr_tag_path(&hsr_ethhdr->hsr_tag, 0x1);
+
+	/* IEC 62439-1:2010, p 12: "The link service data unit in an Ethernet
+	 * frame is the content of the frame located between the Length/Type
+	 * field and the Frame Check Sequence."
+	 *
+	 * IEC 62439-3, p 48, specifies the "original LPDU" to include the
+	 * original "LT" field (what "LT" means is not explained anywhere as
+	 * far as I can see - perhaps "Length/Type"?). So LSDU_size might
+	 * equal original length + 2.
+	 *   Also, the fact that this field is not used anywhere (might be used
+	 * by a RedBox connecting HSR and PRP nets?) means I cannot test its
+	 * correctness. Instead of guessing, I set this to 0 here, to make any
+	 * problems immediately apparent. Anyone using this driver with PRP/HSR
+	 * RedBoxes might need to fix this...
+	 */
+	set_hsr_tag_LSDU_size(&hsr_ethhdr->hsr_tag, 0);
+
+	spin_lock_irqsave(&hsr_priv->seqnr_lock, irqflags);
+	hsr_ethhdr->hsr_tag.sequence_nr = htons(hsr_priv->sequence_nr);
+	hsr_priv->sequence_nr++;
+	spin_unlock_irqrestore(&hsr_priv->seqnr_lock, irqflags);
+
+	hsr_ethhdr->hsr_tag.encap_proto = hsr_ethhdr->ethhdr.h_proto;
+
+	hsr_ethhdr->ethhdr.h_proto = htons(ETH_P_PRP);
+}
+
+static int slave_xmit(struct sk_buff *skb, struct hsr_priv *hsr_priv,
+		      enum hsr_dev_idx dev_idx)
+{
+	struct hsr_ethhdr *hsr_ethhdr;
+
+	hsr_ethhdr = (struct hsr_ethhdr *) skb->data;
+
+	skb->dev = hsr_priv->slave[dev_idx];
+
+	hsr_addr_subst_dest(hsr_priv, &hsr_ethhdr->ethhdr, dev_idx);
+
+	/* Address substitution (IEC62439-3 pp 26, 50): replace mac
+	 * address of outgoing frame with that of the outgoing slave's.
+	 */
+	memcpy(hsr_ethhdr->ethhdr.h_source, skb->dev->dev_addr, ETH_ALEN);
+
+	return dev_queue_xmit(skb);
+}
+
+
+static int hsr_dev_xmit(struct sk_buff *skb, struct net_device *dev)
+{
+	struct hsr_priv *hsr_priv;
+	struct hsr_ethhdr *hsr_ethhdr;
+	struct sk_buff *skb2;
+	int res1, res2;
+
+	hsr_priv = netdev_priv(dev);
+	hsr_ethhdr = (struct hsr_ethhdr *) skb->data;
+
+	if ((skb->protocol != htons(ETH_P_PRP)) ||
+	    (hsr_ethhdr->ethhdr.h_proto != htons(ETH_P_PRP))) {
+		hsr_fill_tag(hsr_ethhdr, hsr_priv);
+		skb->protocol = htons(ETH_P_PRP);
+	}
+
+	skb2 = pskb_copy(skb, GFP_ATOMIC);
+
+	res1 = NET_XMIT_DROP;
+	if (likely(hsr_priv->slave[HSR_DEV_SLAVE_A]))
+		res1 = slave_xmit(skb, hsr_priv, HSR_DEV_SLAVE_A);
+
+	res2 = NET_XMIT_DROP;
+	if (likely(skb2 && hsr_priv->slave[HSR_DEV_SLAVE_B]))
+		res2 = slave_xmit(skb2, hsr_priv, HSR_DEV_SLAVE_B);
+
+	if (likely(res1 == NET_XMIT_SUCCESS || res1 == NET_XMIT_CN ||
+		   res2 == NET_XMIT_SUCCESS || res2 == NET_XMIT_CN)) {
+		hsr_priv->dev->stats.tx_packets++;
+		hsr_priv->dev->stats.tx_bytes += skb->len;
+	} else {
+		hsr_priv->dev->stats.tx_dropped++;
+	}
+
+	return NETDEV_TX_OK;
+}
+
+
+static int hsr_header_create(struct sk_buff *skb, struct net_device *dev,
+			     unsigned short type, const void *daddr,
+			     const void *saddr, unsigned int len)
+{
+	int res;
+
+	/* Make room for the HSR tag now. We will fill it in later (in
+	 * hsr_dev_xmit)
+	 */
+	if (skb_headroom(skb) < HSR_TAGLEN + ETH_HLEN)
+		return -ENOBUFS;
+	skb_push(skb, HSR_TAGLEN);
+
+	/* To allow VLAN/HSR combos we should probably use
+	 * res = dev_hard_header(skb, dev, type, daddr, saddr, len + HSR_TAGLEN);
+	 * here instead. It would require other changes too, though - e.g.
+	 * separate headers for each slave etc...
+	 */
+	res = eth_header(skb, dev, type, daddr, saddr, len + HSR_TAGLEN);
+	if (res <= 0)
+		return res;
+	skb_reset_mac_header(skb);
+
+	return res + HSR_TAGLEN;
+}
+
+
+static const struct header_ops hsr_header_ops = {
+	.create	 = hsr_header_create,
+	.parse	 = eth_header_parse,
+};
+
+
+/* HSR:2010 supervision frames should be padded so that the whole frame,
+ * including headers and FCS, is 64 bytes (without VLAN).
+ */
+static int hsr_pad(int size)
+{
+	const int min_size = ETH_ZLEN - HSR_TAGLEN - ETH_HLEN;
+
+	if (size >= min_size)
+		return size;
+	return min_size;
+}
+
+static void send_hsr_supervision_frame(struct net_device *hsr_dev, u8 type)
+{
+	struct hsr_priv *hsr_priv;
+	struct sk_buff *skb;
+	int hlen, tlen;
+	struct hsr_sup_tag *hsr_stag;
+	struct hsr_sup_payload *hsr_sp;
+	unsigned long irqflags;
+
+	hlen = LL_RESERVED_SPACE(hsr_dev);
+	tlen = hsr_dev->needed_tailroom;
+	skb = alloc_skb(hsr_pad(sizeof(struct hsr_sup_payload)) + hlen + tlen,
+			GFP_ATOMIC);
+
+	if (skb == NULL)
+		return;
+
+	hsr_priv = netdev_priv(hsr_dev);
+
+	skb_reserve(skb, hlen);
+
+	skb->dev = hsr_dev;
+	skb->protocol = htons(ETH_P_PRP);
+	skb->priority = TC_PRIO_CONTROL;
+
+	if (dev_hard_header(skb, skb->dev, ETH_P_PRP,
+			    hsr_priv->sup_multicast_addr,
+			    skb->dev->dev_addr, skb->len) < 0)
+		goto out;
+
+	skb_pull(skb, sizeof(struct ethhdr));
+	hsr_stag = (typeof(hsr_stag)) skb->data;
+
+	set_hsr_stag_path(hsr_stag, 0xf);
+	set_hsr_stag_HSR_Ver(hsr_stag, 0);
+
+	spin_lock_irqsave(&hsr_priv->seqnr_lock, irqflags);
+	hsr_stag->sequence_nr = htons(hsr_priv->sequence_nr);
+	hsr_priv->sequence_nr++;
+	spin_unlock_irqrestore(&hsr_priv->seqnr_lock, irqflags);
+
+	hsr_stag->HSR_TLV_Type = type;
+	hsr_stag->HSR_TLV_Length = 12;
+
+	skb_push(skb, sizeof(struct ethhdr));
+
+	/* Payload: MacAddressA */
+	hsr_sp = (typeof(hsr_sp)) skb_put(skb, sizeof(*hsr_sp));
+	memcpy(hsr_sp->MacAddressA, hsr_dev->dev_addr, ETH_ALEN);
+
+	dev_queue_xmit(skb);
+	return;
+
+out:
+	kfree_skb(skb);
+}
+
+
+/* Announce (supervision frame) timer function
+ */
+static void hsr_announce(unsigned long data)
+{
+	struct hsr_priv *hsr_priv;
+
+	hsr_priv = (struct hsr_priv *) data;
+
+	if (hsr_priv->announce_count < 3) {
+		send_hsr_supervision_frame(hsr_priv->dev, HSR_TLV_ANNOUNCE);
+		hsr_priv->announce_count++;
+	} else {
+		send_hsr_supervision_frame(hsr_priv->dev, HSR_TLV_LIFE_CHECK);
+	}
+
+	if (hsr_priv->announce_count < 3)
+		hsr_priv->announce_timer.expires = jiffies +
+				msecs_to_jiffies(HSR_ANNOUNCE_INTERVAL);
+	else
+		hsr_priv->announce_timer.expires = jiffies +
+				msecs_to_jiffies(HSR_LIFE_CHECK_INTERVAL);
+
+	if (is_admin_up(hsr_priv->dev))
+		add_timer(&hsr_priv->announce_timer);
+}
+
+
+static void restore_slaves(struct net_device *hsr_dev)
+{
+	struct hsr_priv *hsr_priv;
+	int i;
+	int res;
+
+	hsr_priv = netdev_priv(hsr_dev);
+
+	rtnl_lock();
+
+	/* Restore promiscuity */
+	for (i = 0; i < HSR_MAX_SLAVE; i++) {
+		if (!hsr_priv->slave[i])
+			continue;
+		res = dev_set_promiscuity(hsr_priv->slave[i], -1);
+		if (res)
+			netdev_info(hsr_dev,
+				    "Cannot restore slave promiscuity (%s, %d)\n",
+				    hsr_priv->slave[i]->name, res);
+	}
+
+	rtnl_unlock();
+}
+
+static void reclaim_hsr_dev(struct rcu_head *rh)
+{
+	struct hsr_priv *hsr_priv;
+
+	hsr_priv = container_of(rh, struct hsr_priv, rcu_head);
+	free_netdev(hsr_priv->dev);
+}
+
+
+/* According to comments in the declaration of struct net_device, this function
+ * is "Called from unregister, can be used to call free_netdev". Ok then...
+ */
+static void hsr_dev_destroy(struct net_device *hsr_dev)
+{
+	struct hsr_priv *hsr_priv;
+
+	hsr_priv = netdev_priv(hsr_dev);
+
+	del_timer(&hsr_priv->announce_timer);
+	unregister_hsr_master(hsr_priv);    /* calls list_del_rcu on hsr_priv */
+	restore_slaves(hsr_dev);
+	call_rcu(&hsr_priv->rcu_head, reclaim_hsr_dev);   /* reclaim hsr_priv */
+}
+
+static const struct net_device_ops hsr_device_ops = {
+	.ndo_change_mtu = hsr_dev_change_mtu,
+	.ndo_open = hsr_dev_open,
+	.ndo_stop = hsr_dev_close,
+	.ndo_start_xmit = hsr_dev_xmit,
+};
+
+
+void hsr_dev_setup(struct net_device *dev)
+{
+	random_ether_addr(dev->dev_addr);
+
+	ether_setup(dev);
+	dev->header_ops		 = &hsr_header_ops;
+	dev->netdev_ops		 = &hsr_device_ops;
+	dev->tx_queue_len	 = 0;
+
+	dev->destructor = hsr_dev_destroy;
+}
+
+
+/* Return true if dev is a HSR master; return false otherwise.
+ */
+bool is_hsr_master(struct net_device *dev)
+{
+	return (dev->netdev_ops->ndo_start_xmit == hsr_dev_xmit);
+}
+
+static int check_slave_ok(struct net_device *dev)
+{
+	/* Don't allow HSR on non-ethernet like devices */
+	if ((dev->flags & IFF_LOOPBACK) || (dev->type != ARPHRD_ETHER) ||
+	    (dev->addr_len != ETH_ALEN)) {
+		netdev_info(dev, "Cannot use loopback or non-ethernet device as HSR slave.\n");
+		return -EINVAL;
+	}
+
+	/* Don't allow enslaving hsr devices */
+	if (is_hsr_master(dev)) {
+		netdev_info(dev, "Cannot create trees of HSR devices.\n");
+		return -EINVAL;
+	}
+
+	if (is_hsr_slave(dev)) {
+		netdev_info(dev, "This device is already a HSR slave.\n");
+		return -EINVAL;
+	}
+
+	if (dev->priv_flags & IFF_802_1Q_VLAN) {
+		netdev_info(dev, "HSR on top of VLAN is not yet supported in this driver.\n");
+		return -EINVAL;
+	}
+
+	/* HSR over bonded devices has not been tested, but I'm not sure it
+	 * won't work...
+	 */
+
+	return 0;
+}
+
+
+/* Default multicast address for HSR Supervision frames */
+static const unsigned char def_multicast_addr[ETH_ALEN] = {
+	0x01, 0x15, 0x4e, 0x00, 0x01, 0x00
+};
+
+int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
+		     unsigned char multicast_spec)
+{
+	struct hsr_priv *hsr_priv;
+	int i;
+	int res;
+
+	hsr_priv = netdev_priv(hsr_dev);
+	hsr_priv->dev = hsr_dev;
+	INIT_LIST_HEAD(&hsr_priv->node_db);
+	INIT_LIST_HEAD(&hsr_priv->self_node_db);
+	for (i = 0; i < HSR_MAX_SLAVE; i++)
+		hsr_priv->slave[i] = slave[i];
+
+	spin_lock_init(&hsr_priv->seqnr_lock);
+	/* Overflow soon to find bugs easier: */
+	hsr_priv->sequence_nr = USHRT_MAX - 1024;
+
+	init_timer(&hsr_priv->announce_timer);
+	hsr_priv->announce_timer.function = hsr_announce;
+	hsr_priv->announce_timer.data = (unsigned long) hsr_priv;
+
+	memcpy(hsr_priv->sup_multicast_addr, def_multicast_addr, ETH_ALEN);
+	hsr_priv->sup_multicast_addr[ETH_ALEN - 1] = multicast_spec;
+
+/* FIXME: should I modify the value of these?
+ *
+ * - hsr_dev->flags - i.e.
+ *			IFF_MASTER/SLAVE?
+ * - hsr_dev->priv_flags - i.e.
+ *			IFF_EBRIDGE?
+ *			IFF_TX_SKB_SHARING?
+ *			IFF_HSR_MASTER/SLAVE?
+ */
+
+	for (i = 0; i < HSR_MAX_SLAVE; i++) {
+		res = check_slave_ok(slave[i]);
+		if (res)
+			return res;
+	}
+
+	hsr_dev->features = slave[0]->features & slave[1]->features;
+	/* Prevent recursive tx locking */
+	hsr_dev->features |= NETIF_F_LLTX;
+	/* VLAN on top of HSR needs testing and probably some work on
+	 * hsr_header_create() etc.
+	 */
+	hsr_dev->features |= NETIF_F_VLAN_CHALLENGED;
+
+	/* Set hsr_dev's MAC address to that of mac_slave1 */
+	memcpy(hsr_dev->dev_addr, hsr_priv->slave[0]->dev_addr, ETH_ALEN);
+
+	/* Set required header length */
+	for (i = 0; i < HSR_MAX_SLAVE; i++) {
+		if (slave[i]->hard_header_len + HSR_TAGLEN >
+						hsr_dev->hard_header_len)
+			hsr_dev->hard_header_len =
+					slave[i]->hard_header_len + HSR_TAGLEN;
+	}
+
+	/* MTU */
+	for (i = 0; i < HSR_MAX_SLAVE; i++)
+		if (slave[i]->mtu - HSR_TAGLEN < hsr_dev->mtu)
+			hsr_dev->mtu = slave[i]->mtu - HSR_TAGLEN;
+
+	/* Make sure the 1st call to netif_carrier_on() gets through */
+	netif_carrier_off(hsr_dev);
+
+	/* Promiscuity */
+	for (i = 0; i < HSR_MAX_SLAVE; i++) {
+		res = dev_set_promiscuity(slave[i], 1);
+		if (res) {
+			netdev_info(hsr_dev, "Cannot set slave promiscuity (%s, %d)\n",
+				    slave[i]->name, res);
+			goto fail;
+		}
+	}
+
+	/* Make sure we recognize frames from ourselves in hsr_rcv() */
+	res = hsr_create_self_node(&hsr_priv->self_node_db,
+					hsr_dev->dev_addr,
+					hsr_priv->slave[1]->dev_addr);
+	if (res < 0)
+		goto fail;
+
+	res = register_netdevice(hsr_dev);
+	if (res)
+		goto fail;
+
+	register_hsr_master(hsr_priv);
+
+	return 0;
+
+fail:
+	restore_slaves(hsr_dev);
+	return res;
+}
diff --git a/net/hsr/hsr_device.h b/net/hsr/hsr_device.h
new file mode 100644
index 000000000000..2c7148e73914
--- /dev/null
+++ b/net/hsr/hsr_device.h
@@ -0,0 +1,29 @@
+/* Copyright 2011-2013 Autronica Fire and Security AS
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * Author(s):
+ *	2011-2013 Arvid Brodin, arvid.brodin@xdin.com
+ */
+
+#ifndef __HSR_DEVICE_H
+#define __HSR_DEVICE_H
+
+#include <linux/netdevice.h>
+#include "hsr_main.h"
+
+void hsr_dev_setup(struct net_device *dev);
+int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
+		     unsigned char multicast_spec);
+void hsr_set_operstate(struct net_device *hsr_dev, struct net_device *slave1,
+		       struct net_device *slave2);
+void hsr_set_carrier(struct net_device *hsr_dev, struct net_device *slave1,
+		     struct net_device *slave2);
+void hsr_check_announce(struct net_device *hsr_dev, int old_operstate);
+bool is_hsr_master(struct net_device *dev);
+int hsr_get_max_mtu(struct hsr_priv *hsr_priv);
+
+#endif /* __HSR_DEVICE_H */
diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c
new file mode 100644
index 000000000000..003f5bb3acd2
--- /dev/null
+++ b/net/hsr/hsr_framereg.c
@@ -0,0 +1,503 @@
+/* Copyright 2011-2013 Autronica Fire and Security AS
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * Author(s):
+ *	2011-2013 Arvid Brodin, arvid.brodin@xdin.com
+ *
+ * The HSR spec says never to forward the same frame twice on the same
+ * interface. A frame is identified by its source MAC address and its HSR
+ * sequence number. This code keeps track of senders and their sequence numbers
+ * to allow filtering of duplicate frames, and to detect HSR ring errors.
+ */
+
+#include <linux/if_ether.h>
+#include <linux/etherdevice.h>
+#include <linux/slab.h>
+#include <linux/rculist.h>
+#include "hsr_main.h"
+#include "hsr_framereg.h"
+#include "hsr_netlink.h"
+
+
+struct node_entry {
+	struct list_head mac_list;
+	unsigned char	MacAddressA[ETH_ALEN];
+	unsigned char	MacAddressB[ETH_ALEN];
+	enum hsr_dev_idx   AddrB_if;	/* The local slave through which AddrB
+					 * frames are received from this node
+					 */
+	unsigned long	time_in[HSR_MAX_SLAVE];
+	bool		time_in_stale[HSR_MAX_SLAVE];
+	u16		seq_out[HSR_MAX_DEV];
+	struct rcu_head rcu_head;
+};
+
+/*	TODO: use hash lists for mac addresses (linux/jhash.h)?    */
+
+
+
+/* Search for mac entry. Caller must hold rcu read lock.
+ */
+static struct node_entry *find_node_by_AddrA(struct list_head *node_db,
+					     const unsigned char addr[ETH_ALEN])
+{
+	struct node_entry *node;
+
+	list_for_each_entry_rcu(node, node_db, mac_list) {
+		if (ether_addr_equal(node->MacAddressA, addr))
+			return node;
+	}
+
+	return NULL;
+}
+
+
+/* Search for mac entry. Caller must hold rcu read lock.
+ */
+static struct node_entry *find_node_by_AddrB(struct list_head *node_db,
+					     const unsigned char addr[ETH_ALEN])
+{
+	struct node_entry *node;
+
+	list_for_each_entry_rcu(node, node_db, mac_list) {
+		if (ether_addr_equal(node->MacAddressB, addr))
+			return node;
+	}
+
+	return NULL;
+}
+
+
+/* Search for mac entry. Caller must hold rcu read lock.
+ */
+struct node_entry *hsr_find_node(struct list_head *node_db, struct sk_buff *skb)
+{
+	struct node_entry *node;
+	struct ethhdr *ethhdr;
+
+	if (!skb_mac_header_was_set(skb))
+		return NULL;
+
+	ethhdr = (struct ethhdr *) skb_mac_header(skb);
+
+	list_for_each_entry_rcu(node, node_db, mac_list) {
+		if (ether_addr_equal(node->MacAddressA, ethhdr->h_source))
+			return node;
+		if (ether_addr_equal(node->MacAddressB, ethhdr->h_source))
+			return node;
+	}
+
+	return NULL;
+}
+
+
+/* Helper for device init; the self_node_db is used in hsr_rcv() to recognize
+ * frames from self that's been looped over the HSR ring.
+ */
+int hsr_create_self_node(struct list_head *self_node_db,
+			 unsigned char addr_a[ETH_ALEN],
+			 unsigned char addr_b[ETH_ALEN])
+{
+	struct node_entry *node, *oldnode;
+
+	node = kmalloc(sizeof(*node), GFP_KERNEL);
+	if (!node)
+		return -ENOMEM;
+
+	memcpy(node->MacAddressA, addr_a, ETH_ALEN);
+	memcpy(node->MacAddressB, addr_b, ETH_ALEN);
+
+	rcu_read_lock();
+	oldnode = list_first_or_null_rcu(self_node_db,
+						struct node_entry, mac_list);
+	if (oldnode) {
+		list_replace_rcu(&oldnode->mac_list, &node->mac_list);
+		rcu_read_unlock();
+		synchronize_rcu();
+		kfree(oldnode);
+	} else {
+		rcu_read_unlock();
+		list_add_tail_rcu(&node->mac_list, self_node_db);
+	}
+
+	return 0;
+}
+
+static void node_entry_reclaim(struct rcu_head *rh)
+{
+	kfree(container_of(rh, struct node_entry, rcu_head));
+}
+
+
+/* Add/merge node to the database of nodes. 'skb' must contain an HSR
+ * supervision frame.
+ * - If the supervision header's MacAddressA field is not yet in the database,
+ * this frame is from an hitherto unknown node - add it to the database.
+ * - If the sender's MAC address is not the same as its MacAddressA address,
+ * the node is using PICS_SUBS (address substitution). Record the sender's
+ * address as the node's MacAddressB.
+ *
+ * This function needs to work even if the sender node has changed one of its
+ * slaves' MAC addresses. In this case, there are four different cases described
+ * by (Addr-changed, received-from) pairs as follows. Note that changing the
+ * SlaveA address is equal to changing the node's own address:
+ *
+ * - (AddrB, SlaveB): The new AddrB will be recorded by PICS_SUBS code since
+ *		      node == NULL.
+ * - (AddrB, SlaveA): Will work as usual (the AddrB change won't be detected
+ *		      from this frame).
+ *
+ * - (AddrA, SlaveB): The old node will be found. We need to detect this and
+ *		      remove the node.
+ * - (AddrA, SlaveA): A new node will be registered (non-PICS_SUBS at first).
+ *		      The old one will be pruned after HSR_NODE_FORGET_TIME.
+ *
+ * We also need to detect if the sender's SlaveA and SlaveB cables have been
+ * swapped.
+ */
+struct node_entry *hsr_merge_node(struct hsr_priv *hsr_priv,
+				  struct node_entry *node,
+				  struct sk_buff *skb,
+				  enum hsr_dev_idx dev_idx)
+{
+	struct hsr_sup_payload *hsr_sp;
+	struct hsr_ethhdr_sp *hsr_ethsup;
+	int i;
+	unsigned long now;
+
+	hsr_ethsup = (struct hsr_ethhdr_sp *) skb_mac_header(skb);
+	hsr_sp = (struct hsr_sup_payload *) skb->data;
+
+	if (node && !ether_addr_equal(node->MacAddressA, hsr_sp->MacAddressA)) {
+		/* Node has changed its AddrA, frame was received from SlaveB */
+		list_del_rcu(&node->mac_list);
+		call_rcu(&node->rcu_head, node_entry_reclaim);
+		node = NULL;
+	}
+
+	if (node && (dev_idx == node->AddrB_if) &&
+	    !ether_addr_equal(node->MacAddressB, hsr_ethsup->ethhdr.h_source)) {
+		/* Cables have been swapped */
+		list_del_rcu(&node->mac_list);
+		call_rcu(&node->rcu_head, node_entry_reclaim);
+		node = NULL;
+	}
+
+	if (node && (dev_idx != node->AddrB_if) &&
+	    (node->AddrB_if != HSR_DEV_NONE) &&
+	    !ether_addr_equal(node->MacAddressA, hsr_ethsup->ethhdr.h_source)) {
+		/* Cables have been swapped */
+		list_del_rcu(&node->mac_list);
+		call_rcu(&node->rcu_head, node_entry_reclaim);
+		node = NULL;
+	}
+
+	if (node)
+		return node;
+
+	node = find_node_by_AddrA(&hsr_priv->node_db, hsr_sp->MacAddressA);
+	if (node) {
+		/* Node is known, but frame was received from an unknown
+		 * address. Node is PICS_SUBS capable; merge its AddrB.
+		 */
+		memcpy(node->MacAddressB, hsr_ethsup->ethhdr.h_source, ETH_ALEN);
+		node->AddrB_if = dev_idx;
+		return node;
+	}
+
+	node = kzalloc(sizeof(*node), GFP_ATOMIC);
+	if (!node)
+		return NULL;
+
+	memcpy(node->MacAddressA, hsr_sp->MacAddressA, ETH_ALEN);
+	memcpy(node->MacAddressB, hsr_ethsup->ethhdr.h_source, ETH_ALEN);
+	if (!ether_addr_equal(hsr_sp->MacAddressA, hsr_ethsup->ethhdr.h_source))
+		node->AddrB_if = dev_idx;
+	else
+		node->AddrB_if = HSR_DEV_NONE;
+
+	/* We are only interested in time diffs here, so use current jiffies
+	 * as initialization. (0 could trigger an spurious ring error warning).
+	 */
+	now = jiffies;
+	for (i = 0; i < HSR_MAX_SLAVE; i++)
+		node->time_in[i] = now;
+	for (i = 0; i < HSR_MAX_DEV; i++)
+		node->seq_out[i] = ntohs(hsr_ethsup->hsr_sup.sequence_nr) - 1;
+
+	list_add_tail_rcu(&node->mac_list, &hsr_priv->node_db);
+
+	return node;
+}
+
+
+/* 'skb' is a frame meant for this host, that is to be passed to upper layers.
+ *
+ * If the frame was sent by a node's B interface, replace the sender
+ * address with that node's "official" address (MacAddressA) so that upper
+ * layers recognize where it came from.
+ */
+void hsr_addr_subst_source(struct hsr_priv *hsr_priv, struct sk_buff *skb)
+{
+	struct ethhdr *ethhdr;
+	struct node_entry *node;
+
+	if (!skb_mac_header_was_set(skb)) {
+		WARN_ONCE(1, "%s: Mac header not set\n", __func__);
+		return;
+	}
+	ethhdr = (struct ethhdr *) skb_mac_header(skb);
+
+	rcu_read_lock();
+	node = find_node_by_AddrB(&hsr_priv->node_db, ethhdr->h_source);
+	if (node)
+		memcpy(ethhdr->h_source, node->MacAddressA, ETH_ALEN);
+	rcu_read_unlock();
+}
+
+
+/* 'skb' is a frame meant for another host.
+ * 'hsr_dev_idx' is the HSR index of the outgoing device
+ *
+ * Substitute the target (dest) MAC address if necessary, so the it matches the
+ * recipient interface MAC address, regardless of whether that is the
+ * recipient's A or B interface.
+ * This is needed to keep the packets flowing through switches that learn on
+ * which "side" the different interfaces are.
+ */
+void hsr_addr_subst_dest(struct hsr_priv *hsr_priv, struct ethhdr *ethhdr,
+			 enum hsr_dev_idx dev_idx)
+{
+	struct node_entry *node;
+
+	rcu_read_lock();
+	node = find_node_by_AddrA(&hsr_priv->node_db, ethhdr->h_dest);
+	if (node && (node->AddrB_if == dev_idx))
+		memcpy(ethhdr->h_dest, node->MacAddressB, ETH_ALEN);
+	rcu_read_unlock();
+}
+
+
+/* seq_nr_after(a, b) - return true if a is after (higher in sequence than) b,
+ * false otherwise.
+ */
+static bool seq_nr_after(u16 a, u16 b)
+{
+	/* Remove inconsistency where
+	 * seq_nr_after(a, b) == seq_nr_before(a, b) */
+	if ((int) b - a == 32768)
+		return false;
+
+	return (((s16) (b - a)) < 0);
+}
+#define seq_nr_before(a, b)		seq_nr_after((b), (a))
+#define seq_nr_after_or_eq(a, b)	(!seq_nr_before((a), (b)))
+#define seq_nr_before_or_eq(a, b)	(!seq_nr_after((a), (b)))
+
+
+void hsr_register_frame_in(struct node_entry *node, enum hsr_dev_idx dev_idx)
+{
+	if ((dev_idx < 0) || (dev_idx >= HSR_MAX_DEV)) {
+		WARN_ONCE(1, "%s: Invalid dev_idx (%d)\n", __func__, dev_idx);
+		return;
+	}
+	node->time_in[dev_idx] = jiffies;
+	node->time_in_stale[dev_idx] = false;
+}
+
+
+/* 'skb' is a HSR Ethernet frame (with a HSR tag inserted), with a valid
+ * ethhdr->h_source address and skb->mac_header set.
+ *
+ * Return:
+ *	 1 if frame can be shown to have been sent recently on this interface,
+ *	 0 otherwise, or
+ *	 negative error code on error
+ */
+int hsr_register_frame_out(struct node_entry *node, enum hsr_dev_idx dev_idx,
+			   struct sk_buff *skb)
+{
+	struct hsr_ethhdr *hsr_ethhdr;
+	u16 sequence_nr;
+
+	if ((dev_idx < 0) || (dev_idx >= HSR_MAX_DEV)) {
+		WARN_ONCE(1, "%s: Invalid dev_idx (%d)\n", __func__, dev_idx);
+		return -EINVAL;
+	}
+	if (!skb_mac_header_was_set(skb)) {
+		WARN_ONCE(1, "%s: Mac header not set\n", __func__);
+		return -EINVAL;
+	}
+	hsr_ethhdr = (struct hsr_ethhdr *) skb_mac_header(skb);
+
+	sequence_nr = ntohs(hsr_ethhdr->hsr_tag.sequence_nr);
+	if (seq_nr_before_or_eq(sequence_nr, node->seq_out[dev_idx]))
+		return 1;
+
+	node->seq_out[dev_idx] = sequence_nr;
+	return 0;
+}
+
+
+
+static bool is_late(struct node_entry *node, enum hsr_dev_idx dev_idx)
+{
+	enum hsr_dev_idx other;
+
+	if (node->time_in_stale[dev_idx])
+		return true;
+
+	if (dev_idx == HSR_DEV_SLAVE_A)
+		other = HSR_DEV_SLAVE_B;
+	else
+		other = HSR_DEV_SLAVE_A;
+
+	if (node->time_in_stale[other])
+		return false;
+
+	if (time_after(node->time_in[other], node->time_in[dev_idx] +
+		       msecs_to_jiffies(MAX_SLAVE_DIFF)))
+		return true;
+
+	return false;
+}
+
+
+/* Remove stale sequence_nr records. Called by timer every
+ * HSR_LIFE_CHECK_INTERVAL (two seconds or so).
+ */
+void hsr_prune_nodes(struct hsr_priv *hsr_priv)
+{
+	struct node_entry *node;
+	unsigned long timestamp;
+	unsigned long time_a, time_b;
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(node, &hsr_priv->node_db, mac_list) {
+		/* Shorthand */
+		time_a = node->time_in[HSR_DEV_SLAVE_A];
+		time_b = node->time_in[HSR_DEV_SLAVE_B];
+
+		/* Check for timestamps old enough to risk wrap-around */
+		if (time_after(jiffies, time_a + MAX_JIFFY_OFFSET/2))
+			node->time_in_stale[HSR_DEV_SLAVE_A] = true;
+		if (time_after(jiffies, time_b + MAX_JIFFY_OFFSET/2))
+			node->time_in_stale[HSR_DEV_SLAVE_B] = true;
+
+		/* Get age of newest frame from node.
+		 * At least one time_in is OK here; nodes get pruned long
+		 * before both time_ins can get stale
+		 */
+		timestamp = time_a;
+		if (node->time_in_stale[HSR_DEV_SLAVE_A] ||
+		    (!node->time_in_stale[HSR_DEV_SLAVE_B] &&
+		    time_after(time_b, time_a)))
+			timestamp = time_b;
+
+		/* Warn of ring error only as long as we get frames at all */
+		if (time_is_after_jiffies(timestamp +
+					msecs_to_jiffies(1.5*MAX_SLAVE_DIFF))) {
+
+			if (is_late(node, HSR_DEV_SLAVE_A))
+				hsr_nl_ringerror(hsr_priv, node->MacAddressA,
+						 HSR_DEV_SLAVE_A);
+			else if (is_late(node, HSR_DEV_SLAVE_B))
+				hsr_nl_ringerror(hsr_priv, node->MacAddressA,
+						 HSR_DEV_SLAVE_B);
+		}
+
+		/* Prune old entries */
+		if (time_is_before_jiffies(timestamp +
+					msecs_to_jiffies(HSR_NODE_FORGET_TIME))) {
+			hsr_nl_nodedown(hsr_priv, node->MacAddressA);
+			list_del_rcu(&node->mac_list);
+			/* Note that we need to free this entry later: */
+			call_rcu(&node->rcu_head, node_entry_reclaim);
+		}
+	}
+	rcu_read_unlock();
+}
+
+
+void *hsr_get_next_node(struct hsr_priv *hsr_priv, void *_pos,
+			unsigned char addr[ETH_ALEN])
+{
+	struct node_entry *node;
+
+	if (!_pos) {
+		node = list_first_or_null_rcu(&hsr_priv->node_db,
+						struct node_entry, mac_list);
+		if (node)
+			memcpy(addr, node->MacAddressA, ETH_ALEN);
+		return node;
+	}
+
+	node = _pos;
+	list_for_each_entry_continue_rcu(node, &hsr_priv->node_db, mac_list) {
+		memcpy(addr, node->MacAddressA, ETH_ALEN);
+		return node;
+	}
+
+	return NULL;
+}
+
+
+int hsr_get_node_data(struct hsr_priv *hsr_priv,
+		      const unsigned char *addr,
+		      unsigned char addr_b[ETH_ALEN],
+		      unsigned int *addr_b_ifindex,
+		      int *if1_age,
+		      u16 *if1_seq,
+		      int *if2_age,
+		      u16 *if2_seq)
+{
+	struct node_entry *node;
+	unsigned long tdiff;
+
+
+	rcu_read_lock();
+	node = find_node_by_AddrA(&hsr_priv->node_db, addr);
+	if (!node) {
+		rcu_read_unlock();
+		return -ENOENT;	/* No such entry */
+	}
+
+	memcpy(addr_b, node->MacAddressB, ETH_ALEN);
+
+	tdiff = jiffies - node->time_in[HSR_DEV_SLAVE_A];
+	if (node->time_in_stale[HSR_DEV_SLAVE_A])
+		*if1_age = INT_MAX;
+#if HZ <= MSEC_PER_SEC
+	else if (tdiff > msecs_to_jiffies(INT_MAX))
+		*if1_age = INT_MAX;
+#endif
+	else
+		*if1_age = jiffies_to_msecs(tdiff);
+
+	tdiff = jiffies - node->time_in[HSR_DEV_SLAVE_B];
+	if (node->time_in_stale[HSR_DEV_SLAVE_B])
+		*if2_age = INT_MAX;
+#if HZ <= MSEC_PER_SEC
+	else if (tdiff > msecs_to_jiffies(INT_MAX))
+		*if2_age = INT_MAX;
+#endif
+	else
+		*if2_age = jiffies_to_msecs(tdiff);
+
+	/* Present sequence numbers as if they were incoming on interface */
+	*if1_seq = node->seq_out[HSR_DEV_SLAVE_B];
+	*if2_seq = node->seq_out[HSR_DEV_SLAVE_A];
+
+	if ((node->AddrB_if != HSR_DEV_NONE) && hsr_priv->slave[node->AddrB_if])
+		*addr_b_ifindex = hsr_priv->slave[node->AddrB_if]->ifindex;
+	else
+		*addr_b_ifindex = -1;
+
+	rcu_read_unlock();
+
+	return 0;
+}
diff --git a/net/hsr/hsr_framereg.h b/net/hsr/hsr_framereg.h
new file mode 100644
index 000000000000..e6c4022030ad
--- /dev/null
+++ b/net/hsr/hsr_framereg.h
@@ -0,0 +1,53 @@
+/* Copyright 2011-2013 Autronica Fire and Security AS
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * Author(s):
+ *	2011-2013 Arvid Brodin, arvid.brodin@xdin.com
+ */
+
+#ifndef _HSR_FRAMEREG_H
+#define _HSR_FRAMEREG_H
+
+#include "hsr_main.h"
+
+struct node_entry;
+
+struct node_entry *hsr_find_node(struct list_head *node_db, struct sk_buff *skb);
+
+struct node_entry *hsr_merge_node(struct hsr_priv *hsr_priv,
+				  struct node_entry *node,
+				  struct sk_buff *skb,
+				  enum hsr_dev_idx dev_idx);
+
+void hsr_addr_subst_source(struct hsr_priv *hsr_priv, struct sk_buff *skb);
+void hsr_addr_subst_dest(struct hsr_priv *hsr_priv, struct ethhdr *ethhdr,
+			 enum hsr_dev_idx dev_idx);
+
+void hsr_register_frame_in(struct node_entry *node, enum hsr_dev_idx dev_idx);
+
+int hsr_register_frame_out(struct node_entry *node, enum hsr_dev_idx dev_idx,
+			   struct sk_buff *skb);
+
+void hsr_prune_nodes(struct hsr_priv *hsr_priv);
+
+int hsr_create_self_node(struct list_head *self_node_db,
+			 unsigned char addr_a[ETH_ALEN],
+			 unsigned char addr_b[ETH_ALEN]);
+
+void *hsr_get_next_node(struct hsr_priv *hsr_priv, void *_pos,
+			unsigned char addr[ETH_ALEN]);
+
+int hsr_get_node_data(struct hsr_priv *hsr_priv,
+		      const unsigned char *addr,
+		      unsigned char addr_b[ETH_ALEN],
+		      unsigned int *addr_b_ifindex,
+		      int *if1_age,
+		      u16 *if1_seq,
+		      int *if2_age,
+		      u16 *if2_seq);
+
+#endif /* _HSR_FRAMEREG_H */
diff --git a/net/hsr/hsr_main.c b/net/hsr/hsr_main.c
new file mode 100644
index 000000000000..af68dd83a4e3
--- /dev/null
+++ b/net/hsr/hsr_main.c
@@ -0,0 +1,469 @@
+/* Copyright 2011-2013 Autronica Fire and Security AS
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * Author(s):
+ *	2011-2013 Arvid Brodin, arvid.brodin@xdin.com
+ *
+ * In addition to routines for registering and unregistering HSR support, this
+ * file also contains the receive routine that handles all incoming frames with
+ * Ethertype (protocol) ETH_P_PRP (HSRv0), and network device event handling.
+ */
+
+#include <linux/netdevice.h>
+#include <linux/rculist.h>
+#include <linux/timer.h>
+#include <linux/etherdevice.h>
+#include "hsr_main.h"
+#include "hsr_device.h"
+#include "hsr_netlink.h"
+#include "hsr_framereg.h"
+
+
+/* List of all registered virtual HSR devices */
+static LIST_HEAD(hsr_list);
+
+void register_hsr_master(struct hsr_priv *hsr_priv)
+{
+	list_add_tail_rcu(&hsr_priv->hsr_list, &hsr_list);
+}
+
+void unregister_hsr_master(struct hsr_priv *hsr_priv)
+{
+	struct hsr_priv *hsr_priv_it;
+
+	list_for_each_entry(hsr_priv_it, &hsr_list, hsr_list)
+		if (hsr_priv_it == hsr_priv) {
+			list_del_rcu(&hsr_priv_it->hsr_list);
+			return;
+		}
+}
+
+bool is_hsr_slave(struct net_device *dev)
+{
+	struct hsr_priv *hsr_priv_it;
+
+	list_for_each_entry_rcu(hsr_priv_it, &hsr_list, hsr_list) {
+		if (dev == hsr_priv_it->slave[0])
+			return true;
+		if (dev == hsr_priv_it->slave[1])
+			return true;
+	}
+
+	return false;
+}
+
+
+/* If dev is a HSR slave device, return the virtual master device. Return NULL
+ * otherwise.
+ */
+static struct hsr_priv *get_hsr_master(struct net_device *dev)
+{
+	struct hsr_priv *hsr_priv;
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(hsr_priv, &hsr_list, hsr_list)
+		if ((dev == hsr_priv->slave[0]) ||
+		    (dev == hsr_priv->slave[1])) {
+			rcu_read_unlock();
+			return hsr_priv;
+		}
+
+	rcu_read_unlock();
+	return NULL;
+}
+
+
+/* If dev is a HSR slave device, return the other slave device. Return NULL
+ * otherwise.
+ */
+static struct net_device *get_other_slave(struct hsr_priv *hsr_priv,
+					  struct net_device *dev)
+{
+	if (dev == hsr_priv->slave[0])
+		return hsr_priv->slave[1];
+	if (dev == hsr_priv->slave[1])
+		return hsr_priv->slave[0];
+
+	return NULL;
+}
+
+
+static int hsr_netdev_notify(struct notifier_block *nb, unsigned long event,
+			     void *ptr)
+{
+	struct net_device *slave, *other_slave;
+	struct hsr_priv *hsr_priv;
+	int old_operstate;
+	int mtu_max;
+	int res;
+	struct net_device *dev;
+
+	dev = netdev_notifier_info_to_dev(ptr);
+
+	hsr_priv = get_hsr_master(dev);
+	if (hsr_priv) {
+		/* dev is a slave device */
+		slave = dev;
+		other_slave = get_other_slave(hsr_priv, slave);
+	} else {
+		if (!is_hsr_master(dev))
+			return NOTIFY_DONE;
+		hsr_priv = netdev_priv(dev);
+		slave = hsr_priv->slave[0];
+		other_slave = hsr_priv->slave[1];
+	}
+
+	switch (event) {
+	case NETDEV_UP:		/* Administrative state DOWN */
+	case NETDEV_DOWN:	/* Administrative state UP */
+	case NETDEV_CHANGE:	/* Link (carrier) state changes */
+		old_operstate = hsr_priv->dev->operstate;
+		hsr_set_carrier(hsr_priv->dev, slave, other_slave);
+		/* netif_stacked_transfer_operstate() cannot be used here since
+		 * it doesn't set IF_OPER_LOWERLAYERDOWN (?)
+		 */
+		hsr_set_operstate(hsr_priv->dev, slave, other_slave);
+		hsr_check_announce(hsr_priv->dev, old_operstate);
+		break;
+	case NETDEV_CHANGEADDR:
+
+		/* This should not happen since there's no ndo_set_mac_address()
+		 * for HSR devices - i.e. not supported.
+		 */
+		if (dev == hsr_priv->dev)
+			break;
+
+		if (dev == hsr_priv->slave[0])
+			memcpy(hsr_priv->dev->dev_addr,
+			       hsr_priv->slave[0]->dev_addr, ETH_ALEN);
+
+		/* Make sure we recognize frames from ourselves in hsr_rcv() */
+		res = hsr_create_self_node(&hsr_priv->self_node_db,
+					   hsr_priv->dev->dev_addr,
+					   hsr_priv->slave[1] ?
+						hsr_priv->slave[1]->dev_addr :
+						hsr_priv->dev->dev_addr);
+		if (res)
+			netdev_warn(hsr_priv->dev,
+				    "Could not update HSR node address.\n");
+
+		if (dev == hsr_priv->slave[0])
+			call_netdevice_notifiers(NETDEV_CHANGEADDR, hsr_priv->dev);
+		break;
+	case NETDEV_CHANGEMTU:
+		if (dev == hsr_priv->dev)
+			break; /* Handled in ndo_change_mtu() */
+		mtu_max = hsr_get_max_mtu(hsr_priv);
+		if (hsr_priv->dev->mtu > mtu_max)
+			dev_set_mtu(hsr_priv->dev, mtu_max);
+		break;
+	case NETDEV_UNREGISTER:
+		if (dev == hsr_priv->slave[0])
+			hsr_priv->slave[0] = NULL;
+		if (dev == hsr_priv->slave[1])
+			hsr_priv->slave[1] = NULL;
+
+		/* There should really be a way to set a new slave device... */
+
+		break;
+	case NETDEV_PRE_TYPE_CHANGE:
+		/* HSR works only on Ethernet devices. Refuse slave to change
+		 * its type.
+		 */
+		return NOTIFY_BAD;
+	}
+
+	return NOTIFY_DONE;
+}
+
+
+static struct timer_list prune_timer;
+
+static void prune_nodes_all(unsigned long data)
+{
+	struct hsr_priv *hsr_priv;
+
+	rcu_read_lock();
+	list_for_each_entry_rcu(hsr_priv, &hsr_list, hsr_list)
+		hsr_prune_nodes(hsr_priv);
+	rcu_read_unlock();
+
+	prune_timer.expires = jiffies + msecs_to_jiffies(PRUNE_PERIOD);
+	add_timer(&prune_timer);
+}
+
+
+static struct sk_buff *hsr_pull_tag(struct sk_buff *skb)
+{
+	struct hsr_tag *hsr_tag;
+	struct sk_buff *skb2;
+
+	skb2 = skb_share_check(skb, GFP_ATOMIC);
+	if (unlikely(!skb2))
+		goto err_free;
+	skb = skb2;
+
+	if (unlikely(!pskb_may_pull(skb, HSR_TAGLEN)))
+		goto err_free;
+
+	hsr_tag = (struct hsr_tag *) skb->data;
+	skb->protocol = hsr_tag->encap_proto;
+	skb_pull(skb, HSR_TAGLEN);
+
+	return skb;
+
+err_free:
+	kfree_skb(skb);
+	return NULL;
+}
+
+
+/* The uses I can see for these HSR supervision frames are:
+ * 1) Use the frames that are sent after node initialization ("HSR_TLV.Type =
+ *    22") to reset any sequence_nr counters belonging to that node. Useful if
+ *    the other node's counter has been reset for some reason.
+ *    --
+ *    Or not - resetting the counter and bridging the frame would create a
+ *    loop, unfortunately.
+ *
+ * 2) Use the LifeCheck frames to detect ring breaks. I.e. if no LifeCheck
+ *    frame is received from a particular node, we know something is wrong.
+ *    We just register these (as with normal frames) and throw them away.
+ *
+ * 3) Allow different MAC addresses for the two slave interfaces, using the
+ *    MacAddressA field.
+ */
+static bool is_supervision_frame(struct hsr_priv *hsr_priv, struct sk_buff *skb)
+{
+	struct hsr_sup_tag *hsr_stag;
+
+	if (!ether_addr_equal(eth_hdr(skb)->h_dest,
+			      hsr_priv->sup_multicast_addr))
+		return false;
+
+	hsr_stag = (struct hsr_sup_tag *) skb->data;
+	if (get_hsr_stag_path(hsr_stag) != 0x0f)
+		return false;
+	if ((hsr_stag->HSR_TLV_Type != HSR_TLV_ANNOUNCE) &&
+	    (hsr_stag->HSR_TLV_Type != HSR_TLV_LIFE_CHECK))
+		return false;
+	if (hsr_stag->HSR_TLV_Length != 12)
+		return false;
+
+	return true;
+}
+
+
+/* Implementation somewhat according to IEC-62439-3, p. 43
+ */
+static int hsr_rcv(struct sk_buff *skb, struct net_device *dev,
+		   struct packet_type *pt, struct net_device *orig_dev)
+{
+	struct hsr_priv *hsr_priv;
+	struct net_device *other_slave;
+	struct node_entry *node;
+	bool deliver_to_self;
+	struct sk_buff *skb_deliver;
+	enum hsr_dev_idx dev_in_idx, dev_other_idx;
+	bool dup_out;
+	int ret;
+
+	hsr_priv = get_hsr_master(dev);
+
+	if (!hsr_priv) {
+		/* Non-HSR-slave device 'dev' is connected to a HSR network */
+		kfree_skb(skb);
+		dev->stats.rx_errors++;
+		return NET_RX_SUCCESS;
+	}
+
+	if (dev == hsr_priv->slave[0]) {
+		dev_in_idx = HSR_DEV_SLAVE_A;
+		dev_other_idx = HSR_DEV_SLAVE_B;
+	} else {
+		dev_in_idx = HSR_DEV_SLAVE_B;
+		dev_other_idx = HSR_DEV_SLAVE_A;
+	}
+
+	node = hsr_find_node(&hsr_priv->self_node_db, skb);
+	if (node) {
+		/* Always kill frames sent by ourselves */
+		kfree_skb(skb);
+		return NET_RX_SUCCESS;
+	}
+
+	/* Is this frame a candidate for local reception? */
+	deliver_to_self = false;
+	if ((skb->pkt_type == PACKET_HOST) ||
+	    (skb->pkt_type == PACKET_MULTICAST) ||
+	    (skb->pkt_type == PACKET_BROADCAST))
+		deliver_to_self = true;
+	else if (ether_addr_equal(eth_hdr(skb)->h_dest,
+				     hsr_priv->dev->dev_addr)) {
+		skb->pkt_type = PACKET_HOST;
+		deliver_to_self = true;
+	}
+
+
+	rcu_read_lock(); /* node_db */
+	node = hsr_find_node(&hsr_priv->node_db, skb);
+
+	if (is_supervision_frame(hsr_priv, skb)) {
+		skb_pull(skb, sizeof(struct hsr_sup_tag));
+		node = hsr_merge_node(hsr_priv, node, skb, dev_in_idx);
+		if (!node) {
+			rcu_read_unlock(); /* node_db */
+			kfree_skb(skb);
+			hsr_priv->dev->stats.rx_dropped++;
+			return NET_RX_DROP;
+		}
+		skb_push(skb, sizeof(struct hsr_sup_tag));
+		deliver_to_self = false;
+	}
+
+	if (!node) {
+		/* Source node unknown; this might be a HSR frame from
+		 * another net (different multicast address). Ignore it.
+		 */
+		rcu_read_unlock(); /* node_db */
+		kfree_skb(skb);
+		return NET_RX_SUCCESS;
+	}
+
+	/* Register ALL incoming frames as outgoing through the other interface.
+	 * This allows us to register frames as incoming only if they are valid
+	 * for the receiving interface, without using a specific counter for
+	 * incoming frames.
+	 */
+	dup_out = hsr_register_frame_out(node, dev_other_idx, skb);
+	if (!dup_out)
+		hsr_register_frame_in(node, dev_in_idx);
+
+	/* Forward this frame? */
+	if (!dup_out && (skb->pkt_type != PACKET_HOST))
+		other_slave = get_other_slave(hsr_priv, dev);
+	else
+		other_slave = NULL;
+
+	if (hsr_register_frame_out(node, HSR_DEV_MASTER, skb))
+		deliver_to_self = false;
+
+	rcu_read_unlock(); /* node_db */
+
+	if (!deliver_to_self && !other_slave) {
+		kfree_skb(skb);
+		/* Circulated frame; silently remove it. */
+		return NET_RX_SUCCESS;
+	}
+
+	skb_deliver = skb;
+	if (deliver_to_self && other_slave) {
+		/* skb_clone() is not enough since we will strip the hsr tag
+		 * and do address substitution below
+		 */
+		skb_deliver = pskb_copy(skb, GFP_ATOMIC);
+		if (!skb_deliver) {
+			deliver_to_self = false;
+			hsr_priv->dev->stats.rx_dropped++;
+		}
+	}
+
+	if (deliver_to_self) {
+		bool multicast_frame;
+
+		skb_deliver = hsr_pull_tag(skb_deliver);
+		if (!skb_deliver) {
+			hsr_priv->dev->stats.rx_dropped++;
+			goto forward;
+		}
+#if !defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS)
+		/* Move everything in the header that is after the HSR tag,
+		 * to work around alignment problems caused by the 6-byte HSR
+		 * tag. In practice, this removes/overwrites the HSR tag in
+		 * the header and restores a "standard" packet.
+		 */
+		memmove(skb_deliver->data - HSR_TAGLEN, skb_deliver->data,
+			skb_headlen(skb_deliver));
+
+		/* Adjust skb members so they correspond with the move above.
+		 * This cannot possibly underflow skb->data since hsr_pull_tag()
+		 * above succeeded.
+		 * At this point in the protocol stack, the transport and
+		 * network headers have not been set yet, and we haven't touched
+		 * the mac header nor the head. So we only need to adjust data
+		 * and tail:
+		 */
+		skb_deliver->data -= HSR_TAGLEN;
+		skb_deliver->tail -= HSR_TAGLEN;
+#endif
+		skb_deliver->dev = hsr_priv->dev;
+		hsr_addr_subst_source(hsr_priv, skb_deliver);
+		multicast_frame = (skb_deliver->pkt_type == PACKET_MULTICAST);
+		ret = netif_rx(skb_deliver);
+		if (ret == NET_RX_DROP) {
+			hsr_priv->dev->stats.rx_dropped++;
+		} else {
+			hsr_priv->dev->stats.rx_packets++;
+			hsr_priv->dev->stats.rx_bytes += skb->len;
+			if (multicast_frame)
+				hsr_priv->dev->stats.multicast++;
+		}
+	}
+
+forward:
+	if (other_slave) {
+		skb_push(skb, ETH_HLEN);
+		skb->dev = other_slave;
+		dev_queue_xmit(skb);
+	}
+
+	return NET_RX_SUCCESS;
+}
+
+
+static struct packet_type hsr_pt __read_mostly = {
+	.type = htons(ETH_P_PRP),
+	.func = hsr_rcv,
+};
+
+static struct notifier_block hsr_nb = {
+	.notifier_call = hsr_netdev_notify,	/* Slave event notifications */
+};
+
+
+static int __init hsr_init(void)
+{
+	int res;
+
+	BUILD_BUG_ON(sizeof(struct hsr_tag) != HSR_TAGLEN);
+
+	dev_add_pack(&hsr_pt);
+
+	init_timer(&prune_timer);
+	prune_timer.function = prune_nodes_all;
+	prune_timer.data = 0;
+	prune_timer.expires = jiffies + msecs_to_jiffies(PRUNE_PERIOD);
+	add_timer(&prune_timer);
+
+	register_netdevice_notifier(&hsr_nb);
+
+	res = hsr_netlink_init();
+
+	return res;
+}
+
+static void __exit hsr_exit(void)
+{
+	unregister_netdevice_notifier(&hsr_nb);
+	del_timer(&prune_timer);
+	hsr_netlink_exit();
+	dev_remove_pack(&hsr_pt);
+}
+
+module_init(hsr_init);
+module_exit(hsr_exit);
+MODULE_LICENSE("GPL");
diff --git a/net/hsr/hsr_main.h b/net/hsr/hsr_main.h
new file mode 100644
index 000000000000..56fe060c0ab1
--- /dev/null
+++ b/net/hsr/hsr_main.h
@@ -0,0 +1,166 @@
+/* Copyright 2011-2013 Autronica Fire and Security AS
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * Author(s):
+ *	2011-2013 Arvid Brodin, arvid.brodin@xdin.com
+ */
+
+#ifndef _HSR_PRIVATE_H
+#define _HSR_PRIVATE_H
+
+#include <linux/netdevice.h>
+#include <linux/list.h>
+
+
+/* Time constants as specified in the HSR specification (IEC-62439-3 2010)
+ * Table 8.
+ * All values in milliseconds.
+ */
+#define HSR_LIFE_CHECK_INTERVAL		 2000 /* ms */
+#define HSR_NODE_FORGET_TIME		60000 /* ms */
+#define HSR_ANNOUNCE_INTERVAL		  100 /* ms */
+
+
+/* By how much may slave1 and slave2 timestamps of latest received frame from
+ * each node differ before we notify of communication problem?
+ */
+#define MAX_SLAVE_DIFF			 3000 /* ms */
+
+
+/* How often shall we check for broken ring and remove node entries older than
+ * HSR_NODE_FORGET_TIME?
+ */
+#define PRUNE_PERIOD			 3000 /* ms */
+
+
+#define HSR_TLV_ANNOUNCE		   22
+#define HSR_TLV_LIFE_CHECK		   23
+
+
+/* HSR Tag.
+ * As defined in IEC-62439-3:2010, the HSR tag is really { ethertype = 0x88FB,
+ * path, LSDU_size, sequence Nr }. But we let eth_header() create { h_dest,
+ * h_source, h_proto = 0x88FB }, and add { path, LSDU_size, sequence Nr,
+ * encapsulated protocol } instead.
+ */
+#define HSR_TAGLEN	6
+
+/* Field names below as defined in the IEC:2010 standard for HSR. */
+struct hsr_tag {
+	__be16		path_and_LSDU_size;
+	__be16		sequence_nr;
+	__be16		encap_proto;
+} __packed;
+
+
+/* The helper functions below assumes that 'path' occupies the 4 most
+ * significant bits of the 16-bit field shared by 'path' and 'LSDU_size' (or
+ * equivalently, the 4 most significant bits of HSR tag byte 14).
+ *
+ * This is unclear in the IEC specification; its definition of MAC addresses
+ * indicates the spec is written with the least significant bit first (to the
+ * left). This, however, would mean that the LSDU field would be split in two
+ * with the path field in-between, which seems strange. I'm guessing the MAC
+ * address definition is in error.
+ */
+static inline u16 get_hsr_tag_path(struct hsr_tag *ht)
+{
+	return ntohs(ht->path_and_LSDU_size) >> 12;
+}
+
+static inline u16 get_hsr_tag_LSDU_size(struct hsr_tag *ht)
+{
+	return ntohs(ht->path_and_LSDU_size) & 0x0FFF;
+}
+
+static inline void set_hsr_tag_path(struct hsr_tag *ht, u16 path)
+{
+	ht->path_and_LSDU_size = htons(
+			(ntohs(ht->path_and_LSDU_size) & 0x0FFF) | (path << 12));
+}
+
+static inline void set_hsr_tag_LSDU_size(struct hsr_tag *ht, u16 LSDU_size)
+{
+	ht->path_and_LSDU_size = htons(
+			(ntohs(ht->path_and_LSDU_size) & 0xF000) |
+			(LSDU_size & 0x0FFF));
+}
+
+struct hsr_ethhdr {
+	struct ethhdr	ethhdr;
+	struct hsr_tag	hsr_tag;
+} __packed;
+
+
+/* HSR Supervision Frame data types.
+ * Field names as defined in the IEC:2010 standard for HSR.
+ */
+struct hsr_sup_tag {
+	__be16		path_and_HSR_Ver;
+	__be16		sequence_nr;
+	__u8		HSR_TLV_Type;
+	__u8		HSR_TLV_Length;
+} __packed;
+
+struct hsr_sup_payload {
+	unsigned char	MacAddressA[ETH_ALEN];
+} __packed;
+
+static inline u16 get_hsr_stag_path(struct hsr_sup_tag *hst)
+{
+	return get_hsr_tag_path((struct hsr_tag *) hst);
+}
+
+static inline u16 get_hsr_stag_HSR_ver(struct hsr_sup_tag *hst)
+{
+	return get_hsr_tag_LSDU_size((struct hsr_tag *) hst);
+}
+
+static inline void set_hsr_stag_path(struct hsr_sup_tag *hst, u16 path)
+{
+	set_hsr_tag_path((struct hsr_tag *) hst, path);
+}
+
+static inline void set_hsr_stag_HSR_Ver(struct hsr_sup_tag *hst, u16 HSR_Ver)
+{
+	set_hsr_tag_LSDU_size((struct hsr_tag *) hst, HSR_Ver);
+}
+
+struct hsr_ethhdr_sp {
+	struct ethhdr		ethhdr;
+	struct hsr_sup_tag	hsr_sup;
+} __packed;
+
+
+enum hsr_dev_idx {
+	HSR_DEV_NONE = -1,
+	HSR_DEV_SLAVE_A = 0,
+	HSR_DEV_SLAVE_B,
+	HSR_DEV_MASTER,
+};
+#define HSR_MAX_SLAVE	(HSR_DEV_SLAVE_B + 1)
+#define HSR_MAX_DEV	(HSR_DEV_MASTER + 1)
+
+struct hsr_priv {
+	struct list_head	hsr_list;	/* List of hsr devices */
+	struct rcu_head		rcu_head;
+	struct net_device	*dev;
+	struct net_device	*slave[HSR_MAX_SLAVE];
+	struct list_head	node_db;	/* Other HSR nodes */
+	struct list_head	self_node_db;	/* MACs of slaves */
+	struct timer_list	announce_timer;	/* Supervision frame dispatch */
+	int announce_count;
+	u16 sequence_nr;
+	spinlock_t seqnr_lock;			/* locking for sequence_nr */
+	unsigned char		sup_multicast_addr[ETH_ALEN];
+};
+
+void register_hsr_master(struct hsr_priv *hsr_priv);
+void unregister_hsr_master(struct hsr_priv *hsr_priv);
+bool is_hsr_slave(struct net_device *dev);
+
+#endif /*  _HSR_PRIVATE_H */
diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c
new file mode 100644
index 000000000000..4e66bf61f585
--- /dev/null
+++ b/net/hsr/hsr_netlink.c
@@ -0,0 +1,457 @@
+/* Copyright 2011-2013 Autronica Fire and Security AS
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * Author(s):
+ *	2011-2013 Arvid Brodin, arvid.brodin@xdin.com
+ *
+ * Routines for handling Netlink messages for HSR.
+ */
+
+#include "hsr_netlink.h"
+#include <linux/kernel.h>
+#include <net/rtnetlink.h>
+#include <net/genetlink.h>
+#include "hsr_main.h"
+#include "hsr_device.h"
+#include "hsr_framereg.h"
+
+static const struct nla_policy hsr_policy[IFLA_HSR_MAX + 1] = {
+	[IFLA_HSR_SLAVE1]		= { .type = NLA_U32 },
+	[IFLA_HSR_SLAVE2]		= { .type = NLA_U32 },
+	[IFLA_HSR_MULTICAST_SPEC]	= { .type = NLA_U8 },
+};
+
+
+/* Here, it seems a netdevice has already been allocated for us, and the
+ * hsr_dev_setup routine has been executed. Nice!
+ */
+static int hsr_newlink(struct net *src_net, struct net_device *dev,
+		       struct nlattr *tb[], struct nlattr *data[])
+{
+	struct net_device *link[2];
+	unsigned char multicast_spec;
+
+	if (!data[IFLA_HSR_SLAVE1]) {
+		netdev_info(dev, "IFLA_HSR_SLAVE1 missing!\n");
+		return -EINVAL;
+	}
+	link[0] = __dev_get_by_index(src_net, nla_get_u32(data[IFLA_HSR_SLAVE1]));
+	if (!data[IFLA_HSR_SLAVE2]) {
+		netdev_info(dev, "IFLA_HSR_SLAVE2 missing!\n");
+		return -EINVAL;
+	}
+	link[1] = __dev_get_by_index(src_net, nla_get_u32(data[IFLA_HSR_SLAVE2]));
+
+	if (!link[0] || !link[1])
+		return -ENODEV;
+	if (link[0] == link[1])
+		return -EINVAL;
+
+	if (!data[IFLA_HSR_MULTICAST_SPEC])
+		multicast_spec = 0;
+	else
+		multicast_spec = nla_get_u8(data[IFLA_HSR_MULTICAST_SPEC]);
+
+	return hsr_dev_finalize(dev, link, multicast_spec);
+}
+
+static struct rtnl_link_ops hsr_link_ops __read_mostly = {
+	.kind		= "hsr",
+	.maxtype	= IFLA_HSR_MAX,
+	.policy		= hsr_policy,
+	.priv_size	= sizeof(struct hsr_priv),
+	.setup		= hsr_dev_setup,
+	.newlink	= hsr_newlink,
+};
+
+
+
+/* attribute policy */
+/* NLA_BINARY missing in libnl; use NLA_UNSPEC in userspace instead. */
+static const struct nla_policy hsr_genl_policy[HSR_A_MAX + 1] = {
+	[HSR_A_NODE_ADDR] = { .type = NLA_BINARY, .len = ETH_ALEN },
+	[HSR_A_NODE_ADDR_B] = { .type = NLA_BINARY, .len = ETH_ALEN },
+	[HSR_A_IFINDEX] = { .type = NLA_U32 },
+	[HSR_A_IF1_AGE] = { .type = NLA_U32 },
+	[HSR_A_IF2_AGE] = { .type = NLA_U32 },
+	[HSR_A_IF1_SEQ] = { .type = NLA_U16 },
+	[HSR_A_IF2_SEQ] = { .type = NLA_U16 },
+};
+
+static struct genl_family hsr_genl_family = {
+	.id = GENL_ID_GENERATE,
+	.hdrsize = 0,
+	.name = "HSR",
+	.version = 1,
+	.maxattr = HSR_A_MAX,
+};
+
+static struct genl_multicast_group hsr_network_genl_mcgrp = {
+	.name = "hsr-network",
+};
+
+
+
+/* This is called if for some node with MAC address addr, we only get frames
+ * over one of the slave interfaces. This would indicate an open network ring
+ * (i.e. a link has failed somewhere).
+ */
+void hsr_nl_ringerror(struct hsr_priv *hsr_priv, unsigned char addr[ETH_ALEN],
+		      enum hsr_dev_idx dev_idx)
+{
+	struct sk_buff *skb;
+	void *msg_head;
+	int res;
+	int ifindex;
+
+	skb = genlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
+	if (!skb)
+		goto fail;
+
+	msg_head = genlmsg_put(skb, 0, 0, &hsr_genl_family, 0, HSR_C_RING_ERROR);
+	if (!msg_head)
+		goto nla_put_failure;
+
+	res = nla_put(skb, HSR_A_NODE_ADDR, ETH_ALEN, addr);
+	if (res < 0)
+		goto nla_put_failure;
+
+	if (hsr_priv->slave[dev_idx])
+		ifindex = hsr_priv->slave[dev_idx]->ifindex;
+	else
+		ifindex = -1;
+	res = nla_put_u32(skb, HSR_A_IFINDEX, ifindex);
+	if (res < 0)
+		goto nla_put_failure;
+
+	genlmsg_end(skb, msg_head);
+	genlmsg_multicast(skb, 0, hsr_network_genl_mcgrp.id, GFP_ATOMIC);
+
+	return;
+
+nla_put_failure:
+	kfree_skb(skb);
+
+fail:
+	netdev_warn(hsr_priv->dev, "Could not send HSR ring error message\n");
+}
+
+/* This is called when we haven't heard from the node with MAC address addr for
+ * some time (just before the node is removed from the node table/list).
+ */
+void hsr_nl_nodedown(struct hsr_priv *hsr_priv, unsigned char addr[ETH_ALEN])
+{
+	struct sk_buff *skb;
+	void *msg_head;
+	int res;
+
+	skb = genlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
+	if (!skb)
+		goto fail;
+
+	msg_head = genlmsg_put(skb, 0, 0, &hsr_genl_family, 0, HSR_C_NODE_DOWN);
+	if (!msg_head)
+		goto nla_put_failure;
+
+
+	res = nla_put(skb, HSR_A_NODE_ADDR, ETH_ALEN, addr);
+	if (res < 0)
+		goto nla_put_failure;
+
+	genlmsg_end(skb, msg_head);
+	genlmsg_multicast(skb, 0, hsr_network_genl_mcgrp.id, GFP_ATOMIC);
+
+	return;
+
+nla_put_failure:
+	kfree_skb(skb);
+
+fail:
+	netdev_warn(hsr_priv->dev, "Could not send HSR node down\n");
+}
+
+
+/* HSR_C_GET_NODE_STATUS lets userspace query the internal HSR node table
+ * about the status of a specific node in the network, defined by its MAC
+ * address.
+ *
+ * Input: hsr ifindex, node mac address
+ * Output: hsr ifindex, node mac address (copied from request),
+ *	   age of latest frame from node over slave 1, slave 2 [ms]
+ */
+static int hsr_get_node_status(struct sk_buff *skb_in, struct genl_info *info)
+{
+	/* For receiving */
+	struct nlattr *na;
+	struct net_device *hsr_dev;
+
+	/* For sending */
+	struct sk_buff *skb_out;
+	void *msg_head;
+	struct hsr_priv *hsr_priv;
+	unsigned char hsr_node_addr_b[ETH_ALEN];
+	int hsr_node_if1_age;
+	u16 hsr_node_if1_seq;
+	int hsr_node_if2_age;
+	u16 hsr_node_if2_seq;
+	int addr_b_ifindex;
+	int res;
+
+	if (!info)
+		goto invalid;
+
+	na = info->attrs[HSR_A_IFINDEX];
+	if (!na)
+		goto invalid;
+	na = info->attrs[HSR_A_NODE_ADDR];
+	if (!na)
+		goto invalid;
+
+	hsr_dev = __dev_get_by_index(genl_info_net(info),
+					nla_get_u32(info->attrs[HSR_A_IFINDEX]));
+	if (!hsr_dev)
+		goto invalid;
+	if (!is_hsr_master(hsr_dev))
+		goto invalid;
+
+
+	/* Send reply */
+
+	skb_out = genlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (!skb_out) {
+		res = -ENOMEM;
+		goto fail;
+	}
+
+	msg_head = genlmsg_put(skb_out, NETLINK_CB(skb_in).portid,
+				info->snd_seq, &hsr_genl_family, 0,
+				HSR_C_SET_NODE_STATUS);
+	if (!msg_head) {
+		res = -ENOMEM;
+		goto nla_put_failure;
+	}
+
+	res = nla_put_u32(skb_out, HSR_A_IFINDEX, hsr_dev->ifindex);
+	if (res < 0)
+		goto nla_put_failure;
+
+	hsr_priv = netdev_priv(hsr_dev);
+	res = hsr_get_node_data(hsr_priv,
+			(unsigned char *) nla_data(info->attrs[HSR_A_NODE_ADDR]),
+			hsr_node_addr_b,
+			&addr_b_ifindex,
+			&hsr_node_if1_age,
+			&hsr_node_if1_seq,
+			&hsr_node_if2_age,
+			&hsr_node_if2_seq);
+	if (res < 0)
+		goto fail;
+
+	res = nla_put(skb_out, HSR_A_NODE_ADDR, ETH_ALEN,
+					nla_data(info->attrs[HSR_A_NODE_ADDR]));
+	if (res < 0)
+		goto nla_put_failure;
+
+	if (addr_b_ifindex > -1) {
+		res = nla_put(skb_out, HSR_A_NODE_ADDR_B, ETH_ALEN,
+								hsr_node_addr_b);
+		if (res < 0)
+			goto nla_put_failure;
+
+		res = nla_put_u32(skb_out, HSR_A_ADDR_B_IFINDEX, addr_b_ifindex);
+		if (res < 0)
+			goto nla_put_failure;
+	}
+
+	res = nla_put_u32(skb_out, HSR_A_IF1_AGE, hsr_node_if1_age);
+	if (res < 0)
+		goto nla_put_failure;
+	res = nla_put_u16(skb_out, HSR_A_IF1_SEQ, hsr_node_if1_seq);
+	if (res < 0)
+		goto nla_put_failure;
+	if (hsr_priv->slave[0])
+		res = nla_put_u32(skb_out, HSR_A_IF1_IFINDEX,
+						hsr_priv->slave[0]->ifindex);
+	if (res < 0)
+		goto nla_put_failure;
+
+	res = nla_put_u32(skb_out, HSR_A_IF2_AGE, hsr_node_if2_age);
+	if (res < 0)
+		goto nla_put_failure;
+	res = nla_put_u16(skb_out, HSR_A_IF2_SEQ, hsr_node_if2_seq);
+	if (res < 0)
+		goto nla_put_failure;
+	if (hsr_priv->slave[1])
+		res = nla_put_u32(skb_out, HSR_A_IF2_IFINDEX,
+						hsr_priv->slave[1]->ifindex);
+
+	genlmsg_end(skb_out, msg_head);
+	genlmsg_unicast(genl_info_net(info), skb_out, info->snd_portid);
+
+	return 0;
+
+invalid:
+	netlink_ack(skb_in, nlmsg_hdr(skb_in), -EINVAL);
+	return 0;
+
+nla_put_failure:
+	kfree_skb(skb_out);
+	/* Fall through */
+
+fail:
+	return res;
+}
+
+static struct genl_ops hsr_ops_get_node_status = {
+	.cmd = HSR_C_GET_NODE_STATUS,
+	.flags = 0,
+	.policy = hsr_genl_policy,
+	.doit = hsr_get_node_status,
+	.dumpit = NULL,
+};
+
+
+/* Get a list of MacAddressA of all nodes known to this node (other than self).
+ */
+static int hsr_get_node_list(struct sk_buff *skb_in, struct genl_info *info)
+{
+	/* For receiving */
+	struct nlattr *na;
+	struct net_device *hsr_dev;
+
+	/* For sending */
+	struct sk_buff *skb_out;
+	void *msg_head;
+	struct hsr_priv *hsr_priv;
+	void *pos;
+	unsigned char addr[ETH_ALEN];
+	int res;
+
+	if (!info)
+		goto invalid;
+
+	na = info->attrs[HSR_A_IFINDEX];
+	if (!na)
+		goto invalid;
+
+	hsr_dev = __dev_get_by_index(genl_info_net(info),
+				     nla_get_u32(info->attrs[HSR_A_IFINDEX]));
+	if (!hsr_dev)
+		goto invalid;
+	if (!is_hsr_master(hsr_dev))
+		goto invalid;
+
+
+	/* Send reply */
+
+	skb_out = genlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL);
+	if (!skb_out) {
+		res = -ENOMEM;
+		goto fail;
+	}
+
+	msg_head = genlmsg_put(skb_out, NETLINK_CB(skb_in).portid,
+				info->snd_seq, &hsr_genl_family, 0,
+				HSR_C_SET_NODE_LIST);
+	if (!msg_head) {
+		res = -ENOMEM;
+		goto nla_put_failure;
+	}
+
+	res = nla_put_u32(skb_out, HSR_A_IFINDEX, hsr_dev->ifindex);
+	if (res < 0)
+		goto nla_put_failure;
+
+	hsr_priv = netdev_priv(hsr_dev);
+
+	rcu_read_lock();
+	pos = hsr_get_next_node(hsr_priv, NULL, addr);
+	while (pos) {
+		res = nla_put(skb_out, HSR_A_NODE_ADDR, ETH_ALEN, addr);
+		if (res < 0) {
+			rcu_read_unlock();
+			goto nla_put_failure;
+		}
+		pos = hsr_get_next_node(hsr_priv, pos, addr);
+	}
+	rcu_read_unlock();
+
+	genlmsg_end(skb_out, msg_head);
+	genlmsg_unicast(genl_info_net(info), skb_out, info->snd_portid);
+
+	return 0;
+
+invalid:
+	netlink_ack(skb_in, nlmsg_hdr(skb_in), -EINVAL);
+	return 0;
+
+nla_put_failure:
+	kfree_skb(skb_out);
+	/* Fall through */
+
+fail:
+	return res;
+}
+
+
+static struct genl_ops hsr_ops_get_node_list = {
+	.cmd = HSR_C_GET_NODE_LIST,
+	.flags = 0,
+	.policy = hsr_genl_policy,
+	.doit = hsr_get_node_list,
+	.dumpit = NULL,
+};
+
+int __init hsr_netlink_init(void)
+{
+	int rc;
+
+	rc = rtnl_link_register(&hsr_link_ops);
+	if (rc)
+		goto fail_rtnl_link_register;
+
+	rc = genl_register_family(&hsr_genl_family);
+	if (rc)
+		goto fail_genl_register_family;
+
+	rc = genl_register_ops(&hsr_genl_family, &hsr_ops_get_node_status);
+	if (rc)
+		goto fail_genl_register_ops;
+
+	rc = genl_register_ops(&hsr_genl_family, &hsr_ops_get_node_list);
+	if (rc)
+		goto fail_genl_register_ops_node_list;
+
+	rc = genl_register_mc_group(&hsr_genl_family, &hsr_network_genl_mcgrp);
+	if (rc)
+		goto fail_genl_register_mc_group;
+
+	return 0;
+
+fail_genl_register_mc_group:
+	genl_unregister_ops(&hsr_genl_family, &hsr_ops_get_node_list);
+fail_genl_register_ops_node_list:
+	genl_unregister_ops(&hsr_genl_family, &hsr_ops_get_node_status);
+fail_genl_register_ops:
+	genl_unregister_family(&hsr_genl_family);
+fail_genl_register_family:
+	rtnl_link_unregister(&hsr_link_ops);
+fail_rtnl_link_register:
+
+	return rc;
+}
+
+void __exit hsr_netlink_exit(void)
+{
+	genl_unregister_mc_group(&hsr_genl_family, &hsr_network_genl_mcgrp);
+	genl_unregister_ops(&hsr_genl_family, &hsr_ops_get_node_status);
+	genl_unregister_family(&hsr_genl_family);
+
+	rtnl_link_unregister(&hsr_link_ops);
+}
+
+MODULE_ALIAS_RTNL_LINK("hsr");
diff --git a/net/hsr/hsr_netlink.h b/net/hsr/hsr_netlink.h
new file mode 100644
index 000000000000..d4579dcc3c7d
--- /dev/null
+++ b/net/hsr/hsr_netlink.h
@@ -0,0 +1,30 @@
+/* Copyright 2011-2013 Autronica Fire and Security AS
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * Author(s):
+ *	2011-2013 Arvid Brodin, arvid.brodin@xdin.com
+ */
+
+#ifndef __HSR_NETLINK_H
+#define __HSR_NETLINK_H
+
+#include <linux/if_ether.h>
+#include <linux/module.h>
+#include <uapi/linux/hsr_netlink.h>
+
+struct hsr_priv;
+
+int __init hsr_netlink_init(void);
+void __exit hsr_netlink_exit(void);
+
+void hsr_nl_ringerror(struct hsr_priv *hsr_priv, unsigned char addr[ETH_ALEN],
+		      int dev_idx);
+void hsr_nl_nodedown(struct hsr_priv *hsr_priv, unsigned char addr[ETH_ALEN]);
+void hsr_nl_framedrop(int dropcount, int dev_idx);
+void hsr_nl_linkdown(int dev_idx);
+
+#endif /* __HSR_NETLINK_H */
-- 
cgit 


From 7926c1d5be0b7cbe5b8d5c788d7d39237e7b212c Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Thu, 31 Oct 2013 09:13:32 +0100
Subject: net: sctp: do not trigger BUG_ON in sctp_cmd_delete_tcb

Introduced in f9e42b853523 ("net: sctp: sideeffect: throw BUG if
primary_path is NULL"), we intended to find a buggy assoc that's
part of the assoc hash table with a primary_path that is NULL.
However, we better remove the BUG_ON for now and find a more
suitable place to assert for these things as Mark reports that
this also triggers the bug when duplication cookie processing
happens, and the assoc is not part of the hash table (so all
good in this case). Such a situation can for example easily be
reproduced by:

  tc qdisc add dev eth0 root handle 1: prio bands 2 priomap 1 1 1 1 1 1
  tc qdisc add dev eth0 parent 1:2 handle 20: netem loss 20%
  tc filter add dev eth0 protocol ip parent 1: prio 2 u32 match ip \
            protocol 132 0xff match u8 0x0b 0xff at 32 flowid 1:2

This drops 20% of COOKIE-ACK packets. After some follow-up
discussion with Vlad we came to the conclusion that for now we
should still better remove this BUG_ON() assertion, and come up
with two follow-ups later on, that is, i) find a more suitable
place for this assertion, and possibly ii) have a special
allocator/initializer for such kind of temporary assocs.

Reported-by: Mark Thomas <Mark.Thomas@metaswitch.com>
Signed-off-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sctp/sm_sideeffect.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c
index 666c66842799..1a6eef39ab2f 100644
--- a/net/sctp/sm_sideeffect.c
+++ b/net/sctp/sm_sideeffect.c
@@ -860,7 +860,6 @@ static void sctp_cmd_delete_tcb(sctp_cmd_seq_t *cmds,
 	    (!asoc->temp) && (sk->sk_shutdown != SHUTDOWN_MASK))
 		return;
 
-	BUG_ON(asoc->peer.primary_path == NULL);
 	sctp_unhash_established(asoc);
 	sctp_association_free(asoc);
 }
-- 
cgit 


From c32b7dfbb1dfb3f0a68f250deff65103c8bb704a Mon Sep 17 00:00:00 2001
From: Jack Morgenstein <jackm@dev.mellanox.co.il>
Date: Sun, 3 Nov 2013 10:04:07 +0200
Subject: net/mlx4_core: Fix call to __mlx4_unregister_mac

In function mlx4_master_deactivate_admin_state() __mlx4_unregister_mac was
called using the MAC index. It should be called with the value of the MAC itself.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/cmd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index ea20182c6969..bb11624a1f39 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -1691,7 +1691,7 @@ static void mlx4_master_deactivate_admin_state(struct mlx4_priv *priv, int slave
 			vp_oper->vlan_idx = NO_INDX;
 		}
 		if (NO_INDX != vp_oper->mac_idx) {
-			__mlx4_unregister_mac(&priv->dev, port, vp_oper->mac_idx);
+			__mlx4_unregister_mac(&priv->dev, port, vp_oper->state.mac);
 			vp_oper->mac_idx = NO_INDX;
 		}
 	}
-- 
cgit 


From 424aab72933cf1afafdeccf2760a74fe3a2fb7b4 Mon Sep 17 00:00:00 2001
From: Chanwoo Choi <cw00.choi@samsung.com>
Date: Thu, 10 Oct 2013 10:05:55 +0900
Subject: mfd: max77693: Fix up bug of wrong interrupt number

The max77693 MFD device use irq domain method which has hardware interrupt
number and virtual interrupt number getting through irq domain mapping.
This patch use hardware interrupt number instead of virtual interrupt number
to get struct irq_data.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/max77693-irq.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mfd/max77693-irq.c b/drivers/mfd/max77693-irq.c
index 1029d018c739..66b58fe77094 100644
--- a/drivers/mfd/max77693-irq.c
+++ b/drivers/mfd/max77693-irq.c
@@ -128,7 +128,8 @@ static void max77693_irq_sync_unlock(struct irq_data *data)
 static const inline struct max77693_irq_data *
 irq_to_max77693_irq(struct max77693_dev *max77693, int irq)
 {
-	return &max77693_irqs[irq];
+	struct irq_data *data = irq_get_irq_data(irq);
+	return &max77693_irqs[data->hwirq];
 }
 
 static void max77693_irq_mask(struct irq_data *data)
-- 
cgit 


From 611885bc963a2fa6fbd6141d149abbcce4dd8923 Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@iki.fi>
Date: Sun, 3 Nov 2013 17:15:00 +0200
Subject: ALSA: hda - hdmi: Disallow unsupported 2ch remapping on NVIDIA codecs

NVIDIA HDMI codecs do not seem to follow the Audio Sample Packet (ASP)
channel mapping (as set by verb F32h per HDA specification 7.3.3.41)
when playing back 2-channel audio (CEA CA 0x00).

Basically this means that specifying swapped channels for stereo audio
(FR,FL) does not take effect, and e.g. this command plays back on the
wrong channel:
speaker-test -c2 -Dhdmi:CARD=NVidia,DEV=0 -m FR,FL -s1

Multichannel audio is not affected.

This issue has been confirmed to exist on codec 0x10de0015 by me and on
0x10de0040 by Juho Teperi.

Disable 2ch FL/FR channel swapping on all NVIDIA HDMI codecs that use
the standard HDA channel mapping system. Since this is a very minor
functionality loss, we err on the side of disabling it for newer codecs
as well until any future testing confirms that this issue has been
fixed.

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Helped-by: Juho Teperi <juho.teperi@iki.fi>
Cc: Aaron Plattner <aplattner@nvidia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 86 +++++++++++++++++++++++++++++++++-------------
 1 file changed, 63 insertions(+), 23 deletions(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index d61cc2ab52af..c3e3537b3196 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -2786,6 +2786,46 @@ static int patch_nvhdmi_8ch_7x(struct hda_codec *codec)
 	return 0;
 }
 
+/*
+ * NVIDIA codecs ignore ASP mapping for 2ch - confirmed on:
+ * - 0x10de0015
+ * - 0x10de0040
+ */
+static int nvhdmi_chmap_cea_alloc_validate_get_type(struct cea_channel_speaker_allocation *cap,
+						    int channels)
+{
+	if (cap->ca_index == 0x00 && channels == 2)
+		return SNDRV_CTL_TLVT_CHMAP_FIXED;
+
+	return hdmi_chmap_cea_alloc_validate_get_type(cap, channels);
+}
+
+static int nvhdmi_chmap_validate(int ca, int chs, unsigned char *map)
+{
+	if (ca == 0x00 && (map[0] != SNDRV_CHMAP_FL || map[1] != SNDRV_CHMAP_FR))
+		return -EINVAL;
+
+	return 0;
+}
+
+static int patch_nvhdmi(struct hda_codec *codec)
+{
+	struct hdmi_spec *spec;
+	int err;
+
+	err = patch_generic_hdmi(codec);
+	if (err)
+		return err;
+
+	spec = codec->spec;
+
+	spec->ops.chmap_cea_alloc_validate_get_type =
+		nvhdmi_chmap_cea_alloc_validate_get_type;
+	spec->ops.chmap_validate = nvhdmi_chmap_validate;
+
+	return 0;
+}
+
 /*
  * ATI/AMD-specific implementations
  */
@@ -3167,30 +3207,30 @@ static const struct hda_codec_preset snd_hda_preset_hdmi[] = {
 { .id = 0x10de0005, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
 { .id = 0x10de0006, .name = "MCP77/78 HDMI",	.patch = patch_nvhdmi_8ch_7x },
 { .id = 0x10de0007, .name = "MCP79/7A HDMI",	.patch = patch_nvhdmi_8ch_7x },
-{ .id = 0x10de000a, .name = "GPU 0a HDMI/DP",	.patch = patch_generic_hdmi },
-{ .id = 0x10de000b, .name = "GPU 0b HDMI/DP",	.patch = patch_generic_hdmi },
-{ .id = 0x10de000c, .name = "MCP89 HDMI",	.patch = patch_generic_hdmi },
-{ .id = 0x10de000d, .name = "GPU 0d HDMI/DP",	.patch = patch_generic_hdmi },
-{ .id = 0x10de0010, .name = "GPU 10 HDMI/DP",	.patch = patch_generic_hdmi },
-{ .id = 0x10de0011, .name = "GPU 11 HDMI/DP",	.patch = patch_generic_hdmi },
-{ .id = 0x10de0012, .name = "GPU 12 HDMI/DP",	.patch = patch_generic_hdmi },
-{ .id = 0x10de0013, .name = "GPU 13 HDMI/DP",	.patch = patch_generic_hdmi },
-{ .id = 0x10de0014, .name = "GPU 14 HDMI/DP",	.patch = patch_generic_hdmi },
-{ .id = 0x10de0015, .name = "GPU 15 HDMI/DP",	.patch = patch_generic_hdmi },
-{ .id = 0x10de0016, .name = "GPU 16 HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de000a, .name = "GPU 0a HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de000b, .name = "GPU 0b HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de000c, .name = "MCP89 HDMI",	.patch = patch_nvhdmi },
+{ .id = 0x10de000d, .name = "GPU 0d HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de0010, .name = "GPU 10 HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de0011, .name = "GPU 11 HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de0012, .name = "GPU 12 HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de0013, .name = "GPU 13 HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de0014, .name = "GPU 14 HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de0015, .name = "GPU 15 HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de0016, .name = "GPU 16 HDMI/DP",	.patch = patch_nvhdmi },
 /* 17 is known to be absent */
-{ .id = 0x10de0018, .name = "GPU 18 HDMI/DP",	.patch = patch_generic_hdmi },
-{ .id = 0x10de0019, .name = "GPU 19 HDMI/DP",	.patch = patch_generic_hdmi },
-{ .id = 0x10de001a, .name = "GPU 1a HDMI/DP",	.patch = patch_generic_hdmi },
-{ .id = 0x10de001b, .name = "GPU 1b HDMI/DP",	.patch = patch_generic_hdmi },
-{ .id = 0x10de001c, .name = "GPU 1c HDMI/DP",	.patch = patch_generic_hdmi },
-{ .id = 0x10de0040, .name = "GPU 40 HDMI/DP",	.patch = patch_generic_hdmi },
-{ .id = 0x10de0041, .name = "GPU 41 HDMI/DP",	.patch = patch_generic_hdmi },
-{ .id = 0x10de0042, .name = "GPU 42 HDMI/DP",	.patch = patch_generic_hdmi },
-{ .id = 0x10de0043, .name = "GPU 43 HDMI/DP",	.patch = patch_generic_hdmi },
-{ .id = 0x10de0044, .name = "GPU 44 HDMI/DP",	.patch = patch_generic_hdmi },
-{ .id = 0x10de0051, .name = "GPU 51 HDMI/DP",	.patch = patch_generic_hdmi },
-{ .id = 0x10de0060, .name = "GPU 60 HDMI/DP",	.patch = patch_generic_hdmi },
+{ .id = 0x10de0018, .name = "GPU 18 HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de0019, .name = "GPU 19 HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de001a, .name = "GPU 1a HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de001b, .name = "GPU 1b HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de001c, .name = "GPU 1c HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de0040, .name = "GPU 40 HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de0041, .name = "GPU 41 HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de0042, .name = "GPU 42 HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de0043, .name = "GPU 43 HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de0044, .name = "GPU 44 HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de0051, .name = "GPU 51 HDMI/DP",	.patch = patch_nvhdmi },
+{ .id = 0x10de0060, .name = "GPU 60 HDMI/DP",	.patch = patch_nvhdmi },
 { .id = 0x10de0067, .name = "MCP67 HDMI",	.patch = patch_nvhdmi_2ch },
 { .id = 0x10de8001, .name = "MCP73 HDMI",	.patch = patch_nvhdmi_2ch },
 { .id = 0x11069f80, .name = "VX900 HDMI/DP",	.patch = patch_via_hdmi },
-- 
cgit 


From 7be63f20b00840a6f1c718dcee00855688d64acd Mon Sep 17 00:00:00 2001
From: Stefan Achatz <erazor_de@users.sourceforge.net>
Date: Sun, 3 Nov 2013 06:25:33 +0100
Subject: HID: roccat: fix Coverity CID 141438

Add missing switch breaks.

Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-roccat-kovaplus.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/hid/hid-roccat-kovaplus.c b/drivers/hid/hid-roccat-kovaplus.c
index 0c8e1ef0b67d..966047711fbf 100644
--- a/drivers/hid/hid-roccat-kovaplus.c
+++ b/drivers/hid/hid-roccat-kovaplus.c
@@ -554,9 +554,13 @@ static void kovaplus_keep_values_up_to_date(struct kovaplus_device *kovaplus,
 		break;
 	case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_CPI:
 		kovaplus->actual_cpi = kovaplus_convert_event_cpi(button_report->data1);
+		break;
 	case KOVAPLUS_MOUSE_REPORT_BUTTON_TYPE_SENSITIVITY:
 		kovaplus->actual_x_sensitivity = button_report->data1;
 		kovaplus->actual_y_sensitivity = button_report->data2;
+		break;
+	default:
+		break;
 	}
 }
 
-- 
cgit 


From 9b9f039d570bddc1653cda2e38f4331dcacfcde5 Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Fri, 1 Nov 2013 14:52:06 -0400
Subject: GFS2: Use reflink for quota data cache

This patch adds reflink support to the quota data cache. It
looks a bit strange because we still don't have a sensible
split in the lookup by id and the lru list. That is coming in
later patches though.

The intent here is just to swap the current ref count for
reflinks in all cases with as little as possible other change.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Abhijith Das <adas@redhat.com>
Tested-by: Abhijith Das <adas@redhat.com>
---
 fs/gfs2/incore.h |  2 +-
 fs/gfs2/quota.c  | 42 ++++++++++++++++++++++++++++--------------
 2 files changed, 29 insertions(+), 15 deletions(-)

diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index bb88e417231f..9d778044cc6e 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -422,7 +422,7 @@ struct gfs2_quota_data {
 	struct list_head qd_list;
 	struct list_head qd_reclaim;
 
-	atomic_t qd_count;
+	struct lockref qd_lockref;
 
 	struct kqid qd_id;
 	unsigned long qd_flags;		/* QDF_... */
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 4a9726aa191f..ed089118c171 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -50,6 +50,7 @@
 #include <linux/freezer.h>
 #include <linux/quota.h>
 #include <linux/dqblk_xfs.h>
+#include <linux/lockref.h>
 
 #include "gfs2.h"
 #include "incore.h"
@@ -148,7 +149,8 @@ static int qd_alloc(struct gfs2_sbd *sdp, struct kqid qid,
 	if (!qd)
 		return -ENOMEM;
 
-	atomic_set(&qd->qd_count, 1);
+	qd->qd_lockref.count = 1;
+	spin_lock_init(&qd->qd_lockref.lock);
 	qd->qd_id = qid;
 	qd->qd_slot = -1;
 	INIT_LIST_HEAD(&qd->qd_reclaim);
@@ -180,13 +182,12 @@ static int qd_get(struct gfs2_sbd *sdp, struct kqid qid,
 		spin_lock(&qd_lru_lock);
 		list_for_each_entry(qd, &sdp->sd_quota_list, qd_list) {
 			if (qid_eq(qd->qd_id, qid)) {
-				if (!atomic_read(&qd->qd_count) &&
-				    !list_empty(&qd->qd_reclaim)) {
+				lockref_get(&qd->qd_lockref);
+				if (!list_empty(&qd->qd_reclaim)) {
 					/* Remove it from reclaim list */
 					list_del_init(&qd->qd_reclaim);
 					atomic_dec(&qd_lru_count);
 				}
-				atomic_inc(&qd->qd_count);
 				found = 1;
 				break;
 			}
@@ -222,18 +223,24 @@ static int qd_get(struct gfs2_sbd *sdp, struct kqid qid,
 static void qd_hold(struct gfs2_quota_data *qd)
 {
 	struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;
-	gfs2_assert(sdp, atomic_read(&qd->qd_count));
-	atomic_inc(&qd->qd_count);
+	gfs2_assert(sdp, !__lockref_is_dead(&qd->qd_lockref));
+	lockref_get(&qd->qd_lockref);
 }
 
 static void qd_put(struct gfs2_quota_data *qd)
 {
-	if (atomic_dec_and_lock(&qd->qd_count, &qd_lru_lock)) {
+	spin_lock(&qd_lru_lock);
+
+	if (!lockref_put_or_lock(&qd->qd_lockref)) {
+
 		/* Add to the reclaim list */
 		list_add_tail(&qd->qd_reclaim, &qd_lru_list);
 		atomic_inc(&qd_lru_count);
-		spin_unlock(&qd_lru_lock);
+
+		spin_unlock(&qd->qd_lockref.lock);
 	}
+
+	spin_unlock(&qd_lru_lock);
 }
 
 static int slot_get(struct gfs2_quota_data *qd)
@@ -394,8 +401,8 @@ static int qd_check_sync(struct gfs2_sbd *sdp, struct gfs2_quota_data *qd,
 	list_move_tail(&qd->qd_list, &sdp->sd_quota_list);
 
 	set_bit(QDF_LOCKED, &qd->qd_flags);
-	gfs2_assert_warn(sdp, atomic_read(&qd->qd_count));
-	atomic_inc(&qd->qd_count);
+	gfs2_assert_warn(sdp, !__lockref_is_dead(&qd->qd_lockref));
+	lockref_get(&qd->qd_lockref);
 	qd->qd_change_sync = qd->qd_change;
 	gfs2_assert_warn(sdp, qd->qd_slot_count);
 	qd->qd_slot_count++;
@@ -1303,15 +1310,22 @@ void gfs2_quota_cleanup(struct gfs2_sbd *sdp)
 	while (!list_empty(head)) {
 		qd = list_entry(head->prev, struct gfs2_quota_data, qd_list);
 
-		if (atomic_read(&qd->qd_count) > 1 ||
-		    (atomic_read(&qd->qd_count) &&
-		     !test_bit(QDF_CHANGE, &qd->qd_flags))) {
+		/*
+		 * To be removed in due course... we should be able to
+		 * ensure that all refs to the qd have done by this point
+		 * so that this rather odd test is not required
+		 */
+		spin_lock(&qd->qd_lockref.lock);
+		if (qd->qd_lockref.count > 1 ||
+		    (qd->qd_lockref.count && !test_bit(QDF_CHANGE, &qd->qd_flags))) {
+			spin_unlock(&qd->qd_lockref.lock);
 			list_move(&qd->qd_list, head);
 			spin_unlock(&qd_lru_lock);
 			schedule();
 			spin_lock(&qd_lru_lock);
 			continue;
 		}
+		spin_unlock(&qd->qd_lockref.lock);
 
 		list_del(&qd->qd_list);
 		/* Also remove if this qd exists in the reclaim list */
@@ -1322,7 +1336,7 @@ void gfs2_quota_cleanup(struct gfs2_sbd *sdp)
 		atomic_dec(&sdp->sd_quota_count);
 		spin_unlock(&qd_lru_lock);
 
-		if (!atomic_read(&qd->qd_count)) {
+		if (!qd->qd_lockref.count) {
 			gfs2_assert_warn(sdp, !qd->qd_change);
 			gfs2_assert_warn(sdp, !qd->qd_slot_count);
 		} else
-- 
cgit 


From 7d80823e1d83e35977d77ae201bf63af3317ad0a Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Fri, 1 Nov 2013 14:52:08 -0400
Subject: GFS2: Rename quota qd_lru_lock qd_lock

This is a straight forward rename which is in preparation for
introducing the generic list_lru infrastructure in the
following patch.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Abhijith Das <adas@redhat.com>
Tested-by: Abhijith Das <adas@redhat.com>
---
 fs/gfs2/quota.c | 70 ++++++++++++++++++++++++++++-----------------------------
 1 file changed, 35 insertions(+), 35 deletions(-)

diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index ed089118c171..466516ac5e57 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -74,7 +74,7 @@ struct gfs2_quota_change_host {
 
 static LIST_HEAD(qd_lru_list);
 static atomic_t qd_lru_count = ATOMIC_INIT(0);
-static DEFINE_SPINLOCK(qd_lru_lock);
+static DEFINE_SPINLOCK(qd_lock);
 
 unsigned long gfs2_qd_shrink_scan(struct shrinker *shrink,
 				  struct shrink_control *sc)
@@ -87,7 +87,7 @@ unsigned long gfs2_qd_shrink_scan(struct shrinker *shrink,
 	if (!(sc->gfp_mask & __GFP_FS))
 		return SHRINK_STOP;
 
-	spin_lock(&qd_lru_lock);
+	spin_lock(&qd_lock);
 	while (nr_to_scan && !list_empty(&qd_lru_list)) {
 		qd = list_entry(qd_lru_list.next,
 				struct gfs2_quota_data, qd_reclaim);
@@ -106,13 +106,13 @@ unsigned long gfs2_qd_shrink_scan(struct shrinker *shrink,
 		/* Delete it from the common reclaim list */
 		list_del_init(&qd->qd_reclaim);
 		atomic_dec(&qd_lru_count);
-		spin_unlock(&qd_lru_lock);
+		spin_unlock(&qd_lock);
 		kmem_cache_free(gfs2_quotad_cachep, qd);
-		spin_lock(&qd_lru_lock);
+		spin_lock(&qd_lock);
 		nr_to_scan--;
 		freed++;
 	}
-	spin_unlock(&qd_lru_lock);
+	spin_unlock(&qd_lock);
 	return freed;
 }
 
@@ -179,7 +179,7 @@ static int qd_get(struct gfs2_sbd *sdp, struct kqid qid,
 
 	for (;;) {
 		found = 0;
-		spin_lock(&qd_lru_lock);
+		spin_lock(&qd_lock);
 		list_for_each_entry(qd, &sdp->sd_quota_list, qd_list) {
 			if (qid_eq(qd->qd_id, qid)) {
 				lockref_get(&qd->qd_lockref);
@@ -203,7 +203,7 @@ static int qd_get(struct gfs2_sbd *sdp, struct kqid qid,
 			new_qd = NULL;
 		}
 
-		spin_unlock(&qd_lru_lock);
+		spin_unlock(&qd_lock);
 
 		if (qd) {
 			if (new_qd) {
@@ -229,7 +229,7 @@ static void qd_hold(struct gfs2_quota_data *qd)
 
 static void qd_put(struct gfs2_quota_data *qd)
 {
-	spin_lock(&qd_lru_lock);
+	spin_lock(&qd_lock);
 
 	if (!lockref_put_or_lock(&qd->qd_lockref)) {
 
@@ -240,7 +240,7 @@ static void qd_put(struct gfs2_quota_data *qd)
 		spin_unlock(&qd->qd_lockref.lock);
 	}
 
-	spin_unlock(&qd_lru_lock);
+	spin_unlock(&qd_lock);
 }
 
 static int slot_get(struct gfs2_quota_data *qd)
@@ -249,10 +249,10 @@ static int slot_get(struct gfs2_quota_data *qd)
 	unsigned int c, o = 0, b;
 	unsigned char byte = 0;
 
-	spin_lock(&qd_lru_lock);
+	spin_lock(&qd_lock);
 
 	if (qd->qd_slot_count++) {
-		spin_unlock(&qd_lru_lock);
+		spin_unlock(&qd_lock);
 		return 0;
 	}
 
@@ -276,13 +276,13 @@ found:
 
 	sdp->sd_quota_bitmap[c][o] |= 1 << b;
 
-	spin_unlock(&qd_lru_lock);
+	spin_unlock(&qd_lock);
 
 	return 0;
 
 fail:
 	qd->qd_slot_count--;
-	spin_unlock(&qd_lru_lock);
+	spin_unlock(&qd_lock);
 	return -ENOSPC;
 }
 
@@ -290,10 +290,10 @@ static void slot_hold(struct gfs2_quota_data *qd)
 {
 	struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;
 
-	spin_lock(&qd_lru_lock);
+	spin_lock(&qd_lock);
 	gfs2_assert(sdp, qd->qd_slot_count);
 	qd->qd_slot_count++;
-	spin_unlock(&qd_lru_lock);
+	spin_unlock(&qd_lock);
 }
 
 static void gfs2_icbit_munge(struct gfs2_sbd *sdp, unsigned char **bitmap,
@@ -320,13 +320,13 @@ static void slot_put(struct gfs2_quota_data *qd)
 {
 	struct gfs2_sbd *sdp = qd->qd_gl->gl_sbd;
 
-	spin_lock(&qd_lru_lock);
+	spin_lock(&qd_lock);
 	gfs2_assert(sdp, qd->qd_slot_count);
 	if (!--qd->qd_slot_count) {
 		gfs2_icbit_munge(sdp, sdp->sd_quota_bitmap, qd->qd_slot, 0);
 		qd->qd_slot = -1;
 	}
-	spin_unlock(&qd_lru_lock);
+	spin_unlock(&qd_lock);
 }
 
 static int bh_get(struct gfs2_quota_data *qd)
@@ -420,7 +420,7 @@ static int qd_fish(struct gfs2_sbd *sdp, struct gfs2_quota_data **qdp)
 	if (sdp->sd_vfs->s_flags & MS_RDONLY)
 		return 0;
 
-	spin_lock(&qd_lru_lock);
+	spin_lock(&qd_lock);
 
 	list_for_each_entry(qd, &sdp->sd_quota_list, qd_list) {
 		found = qd_check_sync(sdp, qd, &sdp->sd_quota_sync_gen);
@@ -431,7 +431,7 @@ static int qd_fish(struct gfs2_sbd *sdp, struct gfs2_quota_data **qdp)
 	if (!found)
 		qd = NULL;
 
-	spin_unlock(&qd_lru_lock);
+	spin_unlock(&qd_lock);
 
 	if (qd) {
 		gfs2_assert_warn(sdp, qd->qd_change_sync);
@@ -598,9 +598,9 @@ static void do_qc(struct gfs2_quota_data *qd, s64 change)
 	x = be64_to_cpu(qc->qc_change) + change;
 	qc->qc_change = cpu_to_be64(x);
 
-	spin_lock(&qd_lru_lock);
+	spin_lock(&qd_lock);
 	qd->qd_change = x;
-	spin_unlock(&qd_lru_lock);
+	spin_unlock(&qd_lock);
 
 	if (!x) {
 		gfs2_assert_warn(sdp, test_bit(QDF_CHANGE, &qd->qd_flags));
@@ -972,9 +972,9 @@ static int need_sync(struct gfs2_quota_data *qd)
 	if (!qd->qd_qb.qb_limit)
 		return 0;
 
-	spin_lock(&qd_lru_lock);
+	spin_lock(&qd_lock);
 	value = qd->qd_change;
-	spin_unlock(&qd_lru_lock);
+	spin_unlock(&qd_lock);
 
 	spin_lock(&gt->gt_spin);
 	num = gt->gt_quota_scale_num;
@@ -1019,9 +1019,9 @@ void gfs2_quota_unlock(struct gfs2_inode *ip)
 		if (!sync)
 			continue;
 
-		spin_lock(&qd_lru_lock);
+		spin_lock(&qd_lock);
 		found = qd_check_sync(sdp, qd, NULL);
-		spin_unlock(&qd_lru_lock);
+		spin_unlock(&qd_lock);
 
 		if (!found)
 			continue;
@@ -1083,9 +1083,9 @@ int gfs2_quota_check(struct gfs2_inode *ip, kuid_t uid, kgid_t gid)
 			continue;
 
 		value = (s64)be64_to_cpu(qd->qd_qb.qb_value);
-		spin_lock(&qd_lru_lock);
+		spin_lock(&qd_lock);
 		value += qd->qd_change;
-		spin_unlock(&qd_lru_lock);
+		spin_unlock(&qd_lock);
 
 		if (be64_to_cpu(qd->qd_qb.qb_limit) && (s64)be64_to_cpu(qd->qd_qb.qb_limit) < value) {
 			print_message(qd, "exceeded");
@@ -1276,11 +1276,11 @@ int gfs2_quota_init(struct gfs2_sbd *sdp)
 			qd->qd_slot = slot;
 			qd->qd_slot_count = 1;
 
-			spin_lock(&qd_lru_lock);
+			spin_lock(&qd_lock);
 			gfs2_icbit_munge(sdp, sdp->sd_quota_bitmap, slot, 1);
 			list_add(&qd->qd_list, &sdp->sd_quota_list);
 			atomic_inc(&sdp->sd_quota_count);
-			spin_unlock(&qd_lru_lock);
+			spin_unlock(&qd_lock);
 
 			found++;
 		}
@@ -1306,7 +1306,7 @@ void gfs2_quota_cleanup(struct gfs2_sbd *sdp)
 	struct gfs2_quota_data *qd;
 	unsigned int x;
 
-	spin_lock(&qd_lru_lock);
+	spin_lock(&qd_lock);
 	while (!list_empty(head)) {
 		qd = list_entry(head->prev, struct gfs2_quota_data, qd_list);
 
@@ -1320,9 +1320,9 @@ void gfs2_quota_cleanup(struct gfs2_sbd *sdp)
 		    (qd->qd_lockref.count && !test_bit(QDF_CHANGE, &qd->qd_flags))) {
 			spin_unlock(&qd->qd_lockref.lock);
 			list_move(&qd->qd_list, head);
-			spin_unlock(&qd_lru_lock);
+			spin_unlock(&qd_lock);
 			schedule();
-			spin_lock(&qd_lru_lock);
+			spin_lock(&qd_lock);
 			continue;
 		}
 		spin_unlock(&qd->qd_lockref.lock);
@@ -1334,7 +1334,7 @@ void gfs2_quota_cleanup(struct gfs2_sbd *sdp)
 			atomic_dec(&qd_lru_count);
 		}
 		atomic_dec(&sdp->sd_quota_count);
-		spin_unlock(&qd_lru_lock);
+		spin_unlock(&qd_lock);
 
 		if (!qd->qd_lockref.count) {
 			gfs2_assert_warn(sdp, !qd->qd_change);
@@ -1346,9 +1346,9 @@ void gfs2_quota_cleanup(struct gfs2_sbd *sdp)
 		gfs2_glock_put(qd->qd_gl);
 		kmem_cache_free(gfs2_quotad_cachep, qd);
 
-		spin_lock(&qd_lru_lock);
+		spin_lock(&qd_lock);
 	}
-	spin_unlock(&qd_lru_lock);
+	spin_unlock(&qd_lock);
 
 	gfs2_assert_warn(sdp, !atomic_read(&sdp->sd_quota_count));
 
-- 
cgit 


From 2147dbfd059eb7fefcfd5934f74f25f0693d4a1f Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Mon, 4 Nov 2013 10:15:08 +0000
Subject: GFS2: Use generic list_lru for quota

By using the generic list_lru code, we can now separate the
per sb quota list locking from the lru locking. The lru
lock is made into the inner-most lock.

As a result of this new lock order, we may occasionally see
items on the per-sb quota list which are "dead" so that the
two places where we traverse that list are updated to take
account of that.

As a result of this patch, the gfs2 quota shrinker is now
NUMA zone aware, and we are also laying the foundations for
further improvments in due course.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Signed-off-by: Abhijith Das <adas@redhat.com>
Tested-by: Abhijith Das <adas@redhat.com>
Cc: Dave Chinner <dchinner@redhat.com>
---
 fs/gfs2/incore.h |   5 +--
 fs/gfs2/main.c   |  19 ++++-----
 fs/gfs2/quota.c  | 118 ++++++++++++++++++++++++++++++++-----------------------
 fs/gfs2/quota.h  |   9 ++---
 4 files changed, 85 insertions(+), 66 deletions(-)

diff --git a/fs/gfs2/incore.h b/fs/gfs2/incore.h
index 9d778044cc6e..ba1ea67f4eeb 100644
--- a/fs/gfs2/incore.h
+++ b/fs/gfs2/incore.h
@@ -420,11 +420,10 @@ enum {
 
 struct gfs2_quota_data {
 	struct list_head qd_list;
-	struct list_head qd_reclaim;
-
+	struct kqid qd_id;
 	struct lockref qd_lockref;
+	struct list_head qd_lru;
 
-	struct kqid qd_id;
 	unsigned long qd_flags;		/* QDF_... */
 
 	s64 qd_change;
diff --git a/fs/gfs2/main.c b/fs/gfs2/main.c
index 351586e24e30..0650db2541ef 100644
--- a/fs/gfs2/main.c
+++ b/fs/gfs2/main.c
@@ -31,12 +31,6 @@
 
 struct workqueue_struct *gfs2_control_wq;
 
-static struct shrinker qd_shrinker = {
-	.count_objects = gfs2_qd_shrink_count,
-	.scan_objects = gfs2_qd_shrink_scan,
-	.seeks = DEFAULT_SEEKS,
-};
-
 static void gfs2_init_inode_once(void *foo)
 {
 	struct gfs2_inode *ip = foo;
@@ -87,6 +81,10 @@ static int __init init_gfs2_fs(void)
 	if (error)
 		return error;
 
+	error = list_lru_init(&gfs2_qd_lru);
+	if (error)
+		goto fail_lru;
+
 	error = gfs2_glock_init();
 	if (error)
 		goto fail;
@@ -139,7 +137,7 @@ static int __init init_gfs2_fs(void)
 	if (!gfs2_rsrv_cachep)
 		goto fail;
 
-	register_shrinker(&qd_shrinker);
+	register_shrinker(&gfs2_qd_shrinker);
 
 	error = register_filesystem(&gfs2_fs_type);
 	if (error)
@@ -179,7 +177,9 @@ fail_wq:
 fail_unregister:
 	unregister_filesystem(&gfs2_fs_type);
 fail:
-	unregister_shrinker(&qd_shrinker);
+	list_lru_destroy(&gfs2_qd_lru);
+fail_lru:
+	unregister_shrinker(&gfs2_qd_shrinker);
 	gfs2_glock_exit();
 
 	if (gfs2_rsrv_cachep)
@@ -214,13 +214,14 @@ fail:
 
 static void __exit exit_gfs2_fs(void)
 {
-	unregister_shrinker(&qd_shrinker);
+	unregister_shrinker(&gfs2_qd_shrinker);
 	gfs2_glock_exit();
 	gfs2_unregister_debugfs();
 	unregister_filesystem(&gfs2_fs_type);
 	unregister_filesystem(&gfs2meta_fs_type);
 	destroy_workqueue(gfs_recovery_wq);
 	destroy_workqueue(gfs2_control_wq);
+	list_lru_destroy(&gfs2_qd_lru);
 
 	rcu_barrier();
 
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 466516ac5e57..453b50eaddec 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -51,6 +51,7 @@
 #include <linux/quota.h>
 #include <linux/dqblk_xfs.h>
 #include <linux/lockref.h>
+#include <linux/list_lru.h>
 
 #include "gfs2.h"
 #include "incore.h"
@@ -72,29 +73,25 @@ struct gfs2_quota_change_host {
 	struct kqid qc_id;
 };
 
-static LIST_HEAD(qd_lru_list);
-static atomic_t qd_lru_count = ATOMIC_INIT(0);
+/* Lock order: qd_lock -> qd->lockref.lock -> lru lock */
 static DEFINE_SPINLOCK(qd_lock);
+struct list_lru gfs2_qd_lru;
 
-unsigned long gfs2_qd_shrink_scan(struct shrinker *shrink,
-				  struct shrink_control *sc)
+static void gfs2_qd_dispose(struct list_head *list)
 {
 	struct gfs2_quota_data *qd;
 	struct gfs2_sbd *sdp;
-	int nr_to_scan = sc->nr_to_scan;
-	long freed = 0;
 
-	if (!(sc->gfp_mask & __GFP_FS))
-		return SHRINK_STOP;
-
-	spin_lock(&qd_lock);
-	while (nr_to_scan && !list_empty(&qd_lru_list)) {
-		qd = list_entry(qd_lru_list.next,
-				struct gfs2_quota_data, qd_reclaim);
+	while (!list_empty(list)) {
+		qd = list_entry(list->next, struct gfs2_quota_data, qd_lru);
 		sdp = qd->qd_gl->gl_sbd;
 
+		list_del(&qd->qd_lru);
+
 		/* Free from the filesystem-specific list */
+		spin_lock(&qd_lock);
 		list_del(&qd->qd_list);
+		spin_unlock(&qd_lock);
 
 		gfs2_assert_warn(sdp, !qd->qd_change);
 		gfs2_assert_warn(sdp, !qd->qd_slot_count);
@@ -104,24 +101,59 @@ unsigned long gfs2_qd_shrink_scan(struct shrinker *shrink,
 		atomic_dec(&sdp->sd_quota_count);
 
 		/* Delete it from the common reclaim list */
-		list_del_init(&qd->qd_reclaim);
-		atomic_dec(&qd_lru_count);
-		spin_unlock(&qd_lock);
 		kmem_cache_free(gfs2_quotad_cachep, qd);
-		spin_lock(&qd_lock);
-		nr_to_scan--;
-		freed++;
 	}
-	spin_unlock(&qd_lock);
+}
+
+
+static enum lru_status gfs2_qd_isolate(struct list_head *item, spinlock_t *lock, void *arg)
+{
+	struct list_head *dispose = arg;
+	struct gfs2_quota_data *qd = list_entry(item, struct gfs2_quota_data, qd_lru);
+
+	if (!spin_trylock(&qd->qd_lockref.lock))
+		return LRU_SKIP;
+
+	if (qd->qd_lockref.count == 0) {
+		lockref_mark_dead(&qd->qd_lockref);
+		list_move(&qd->qd_lru, dispose);
+	}
+
+	spin_unlock(&qd->qd_lockref.lock);
+	return LRU_REMOVED;
+}
+
+static unsigned long gfs2_qd_shrink_scan(struct shrinker *shrink,
+					 struct shrink_control *sc)
+{
+	LIST_HEAD(dispose);
+	unsigned long freed;
+
+	if (!(sc->gfp_mask & __GFP_FS))
+		return SHRINK_STOP;
+
+	freed = list_lru_walk_node(&gfs2_qd_lru, sc->nid, gfs2_qd_isolate,
+				   &dispose, &sc->nr_to_scan);
+
+	gfs2_qd_dispose(&dispose);
+
 	return freed;
 }
 
-unsigned long gfs2_qd_shrink_count(struct shrinker *shrink,
-				   struct shrink_control *sc)
+static unsigned long gfs2_qd_shrink_count(struct shrinker *shrink,
+					  struct shrink_control *sc)
 {
-	return vfs_pressure_ratio(atomic_read(&qd_lru_count));
+	return vfs_pressure_ratio(list_lru_count_node(&gfs2_qd_lru, sc->nid));
 }
 
+struct shrinker gfs2_qd_shrinker = {
+	.count_objects = gfs2_qd_shrink_count,
+	.scan_objects = gfs2_qd_shrink_scan,
+	.seeks = DEFAULT_SEEKS,
+	.flags = SHRINKER_NUMA_AWARE,
+};
+
+
 static u64 qd2index(struct gfs2_quota_data *qd)
 {
 	struct kqid qid = qd->qd_id;
@@ -153,7 +185,7 @@ static int qd_alloc(struct gfs2_sbd *sdp, struct kqid qid,
 	spin_lock_init(&qd->qd_lockref.lock);
 	qd->qd_id = qid;
 	qd->qd_slot = -1;
-	INIT_LIST_HEAD(&qd->qd_reclaim);
+	INIT_LIST_HEAD(&qd->qd_lru);
 
 	error = gfs2_glock_get(sdp, qd2index(qd),
 			      &gfs2_quota_glops, CREATE, &qd->qd_gl);
@@ -181,13 +213,9 @@ static int qd_get(struct gfs2_sbd *sdp, struct kqid qid,
 		found = 0;
 		spin_lock(&qd_lock);
 		list_for_each_entry(qd, &sdp->sd_quota_list, qd_list) {
-			if (qid_eq(qd->qd_id, qid)) {
-				lockref_get(&qd->qd_lockref);
-				if (!list_empty(&qd->qd_reclaim)) {
-					/* Remove it from reclaim list */
-					list_del_init(&qd->qd_reclaim);
-					atomic_dec(&qd_lru_count);
-				}
+			if (qid_eq(qd->qd_id, qid) &&
+			    lockref_get_not_dead(&qd->qd_lockref)) {
+				list_lru_del(&gfs2_qd_lru, &qd->qd_lru);
 				found = 1;
 				break;
 			}
@@ -229,18 +257,13 @@ static void qd_hold(struct gfs2_quota_data *qd)
 
 static void qd_put(struct gfs2_quota_data *qd)
 {
-	spin_lock(&qd_lock);
-
-	if (!lockref_put_or_lock(&qd->qd_lockref)) {
+	if (lockref_put_or_lock(&qd->qd_lockref))
+		return;
 
-		/* Add to the reclaim list */
-		list_add_tail(&qd->qd_reclaim, &qd_lru_list);
-		atomic_inc(&qd_lru_count);
+	qd->qd_lockref.count = 0;
+	list_lru_add(&gfs2_qd_lru, &qd->qd_lru);
+	spin_unlock(&qd->qd_lockref.lock);
 
-		spin_unlock(&qd->qd_lockref.lock);
-	}
-
-	spin_unlock(&qd_lock);
 }
 
 static int slot_get(struct gfs2_quota_data *qd)
@@ -398,11 +421,11 @@ static int qd_check_sync(struct gfs2_sbd *sdp, struct gfs2_quota_data *qd,
 	    (sync_gen && (qd->qd_sync_gen >= *sync_gen)))
 		return 0;
 
-	list_move_tail(&qd->qd_list, &sdp->sd_quota_list);
+	if (!lockref_get_not_dead(&qd->qd_lockref))
+		return 0;
 
+	list_move_tail(&qd->qd_list, &sdp->sd_quota_list);
 	set_bit(QDF_LOCKED, &qd->qd_flags);
-	gfs2_assert_warn(sdp, !__lockref_is_dead(&qd->qd_lockref));
-	lockref_get(&qd->qd_lockref);
 	qd->qd_change_sync = qd->qd_change;
 	gfs2_assert_warn(sdp, qd->qd_slot_count);
 	qd->qd_slot_count++;
@@ -1329,10 +1352,7 @@ void gfs2_quota_cleanup(struct gfs2_sbd *sdp)
 
 		list_del(&qd->qd_list);
 		/* Also remove if this qd exists in the reclaim list */
-		if (!list_empty(&qd->qd_reclaim)) {
-			list_del_init(&qd->qd_reclaim);
-			atomic_dec(&qd_lru_count);
-		}
+		list_lru_del(&gfs2_qd_lru, &qd->qd_lru);
 		atomic_dec(&sdp->sd_quota_count);
 		spin_unlock(&qd_lock);
 
@@ -1487,7 +1507,7 @@ static int gfs2_quota_get_xstate(struct super_block *sb,
 	}
 	fqs->qs_uquota.qfs_nextents = 1; /* unsupported */
 	fqs->qs_gquota = fqs->qs_uquota; /* its the same inode in both cases */
-	fqs->qs_incoredqs = atomic_read(&qd_lru_count);
+	fqs->qs_incoredqs = list_lru_count(&gfs2_qd_lru);
 	return 0;
 }
 
diff --git a/fs/gfs2/quota.h b/fs/gfs2/quota.h
index 0f64d9deb1b0..96e4f34a03b0 100644
--- a/fs/gfs2/quota.h
+++ b/fs/gfs2/quota.h
@@ -10,9 +10,10 @@
 #ifndef __QUOTA_DOT_H__
 #define __QUOTA_DOT_H__
 
+#include <linux/list_lru.h>
+
 struct gfs2_inode;
 struct gfs2_sbd;
-struct shrink_control;
 
 #define NO_UID_QUOTA_CHANGE INVALID_UID
 #define NO_GID_QUOTA_CHANGE INVALID_GID
@@ -53,10 +54,8 @@ static inline int gfs2_quota_lock_check(struct gfs2_inode *ip)
 	return ret;
 }
 
-extern unsigned long gfs2_qd_shrink_count(struct shrinker *shrink,
-					  struct shrink_control *sc);
-extern unsigned long gfs2_qd_shrink_scan(struct shrinker *shrink,
-					 struct shrink_control *sc);
 extern const struct quotactl_ops gfs2_quotactl_ops;
+extern struct shrinker gfs2_qd_shrinker;
+extern struct list_lru gfs2_qd_lru;
 
 #endif /* __QUOTA_DOT_H__ */
-- 
cgit 


From 5e1109adde6acd0f3424886da09402ac22ed244b Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Thu, 31 Oct 2013 15:51:18 +0800
Subject: pinctrl: imx1: fix return value check in imx1_pinctrl_core_probe()

In case of error, the function devm_ioremap_nocache() returns NULL
pointer not ERR_PTR(). The IS_ERR() test in the return value check
should be replaced with NULL test.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-imx1-core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-imx1-core.c b/drivers/pinctrl/pinctrl-imx1-core.c
index 4d5a9e74dc8f..f77914ac081a 100644
--- a/drivers/pinctrl/pinctrl-imx1-core.c
+++ b/drivers/pinctrl/pinctrl-imx1-core.c
@@ -615,8 +615,8 @@ int imx1_pinctrl_core_probe(struct platform_device *pdev,
 
 	ipctl->base = devm_ioremap_nocache(&pdev->dev, res->start,
 			resource_size(res));
-	if (IS_ERR(ipctl->base))
-		return PTR_ERR(ipctl->base);
+	if (!ipctl->base)
+		return -ENOMEM;
 
 	pctl_desc = &imx1_pinctrl_desc;
 	pctl_desc->name = dev_name(&pdev->dev);
-- 
cgit 


From a3183c60e3e9be7abd830ebed904491625e07d2e Mon Sep 17 00:00:00 2001
From: Peter Chen <peter.chen@freescale.com>
Date: Mon, 28 Oct 2013 14:01:16 +0800
Subject: pinctrl: imx: fix using pin->input_val wrongly

The commit: "pinctrl: imx: Use struct type for pins" relaced
pin->input_reg by pin->input_val wrongly, fix it at this commit.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-imx.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-imx.c b/drivers/pinctrl/pinctrl-imx.c
index d78dd813bff9..4779b8e0eee8 100644
--- a/drivers/pinctrl/pinctrl-imx.c
+++ b/drivers/pinctrl/pinctrl-imx.c
@@ -245,11 +245,11 @@ static int imx_pmx_enable(struct pinctrl_dev *pctldev, unsigned selector,
 			 * The input_reg[i] here is actually some IOMUXC general
 			 * purpose register, not regular select input register.
 			 */
-			val = readl(ipctl->base + pin->input_val);
+			val = readl(ipctl->base + pin->input_reg);
 			val &= ~mask;
 			val |= select << shift;
-			writel(val, ipctl->base + pin->input_val);
-		} else if (pin->input_val) {
+			writel(val, ipctl->base + pin->input_reg);
+		} else if (pin->input_reg) {
 			/*
 			 * Regular select input register can never be at offset
 			 * 0, and we only print register value for regular case.
-- 
cgit 


From 808e657c5c709844074d47a4284c746070b0772c Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Tue, 29 Oct 2013 04:50:45 +0100
Subject: pinctrl: remove minor dead code

This removes a test whether the 'desc' variable is NULL.
This possibility has already been eliminated by the
below test earlier in the loop:

                if (desc == NULL) {
                        dev_warn(pctldev->dev,
                                 "could not get pin desc for pin %d\n",
                                 pins[i]);
                        continue;
                }

Found with Coverity: CID #1090078

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinmux.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
index 9d144a263dc2..9248ce4efed4 100644
--- a/drivers/pinctrl/pinmux.c
+++ b/drivers/pinctrl/pinmux.c
@@ -505,16 +505,14 @@ void pinmux_disable_setting(struct pinctrl_setting const *setting)
 			pin_free(pctldev, pins[i], NULL);
 		} else {
 			const char *gname;
-			const char *pname;
 
-			pname = desc ? desc->name : "non-existing";
 			gname = pctlops->get_group_name(pctldev,
 						setting->data.mux.group);
 			dev_warn(pctldev->dev,
 				 "not freeing pin %d (%s) as part of "
 				 "deactivating group %s - it is already "
 				 "used for some other setting",
-				 pins[i], pname, gname);
+				 pins[i], desc->name, gname);
 		}
 	}
 
-- 
cgit 


From 106078641f32a6a10d9759f809f809725695cb09 Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Mon, 28 Oct 2013 14:48:30 +0100
Subject: s390/mm,tlb: correct tlb flush on page table upgrade

The IDTE instruction used to flush TLB entries for a specific address
space uses the address-space-control element (ASCE) to identify
affected TLB entries. The upgrade of a page table adds a new top
level page table which changes the ASCE. The TLB entries associated
with the old ASCE need to be flushed and the ASCE for the address space
needs to be replaced synchronously on all CPUs which currently use it.
The concept of a lazy ASCE update with an exception handler is broken.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/processor.h |  2 --
 arch/s390/kernel/entry.h          |  1 -
 arch/s390/kernel/pgm_check.S      |  2 +-
 arch/s390/mm/fault.c              | 37 -------------------------------------
 arch/s390/mm/mmap.c               | 12 ++----------
 arch/s390/mm/pgtable.c            | 18 ++++++++++++++++++
 6 files changed, 21 insertions(+), 51 deletions(-)

diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index a56e63483e0f..0a876bc543d3 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -144,9 +144,7 @@ struct stack_frame {
 	regs->psw.mask	= PSW_USER_BITS | PSW_MASK_BA;			\
 	regs->psw.addr	= new_psw | PSW_ADDR_AMODE;			\
 	regs->gprs[15]	= new_stackp;					\
-	__tlb_flush_mm(current->mm);					\
 	crst_table_downgrade(current->mm, 1UL << 31);			\
-	update_mm(current->mm, current);				\
 	execve_tail();							\
 } while (0)
 
diff --git a/arch/s390/kernel/entry.h b/arch/s390/kernel/entry.h
index e9b04c33d383..cb533f78c09e 100644
--- a/arch/s390/kernel/entry.h
+++ b/arch/s390/kernel/entry.h
@@ -23,7 +23,6 @@ asmlinkage void do_syscall_trace_exit(struct pt_regs *regs);
 
 void do_protection_exception(struct pt_regs *regs);
 void do_dat_exception(struct pt_regs *regs);
-void do_asce_exception(struct pt_regs *regs);
 
 void addressing_exception(struct pt_regs *regs);
 void data_exception(struct pt_regs *regs);
diff --git a/arch/s390/kernel/pgm_check.S b/arch/s390/kernel/pgm_check.S
index 14bdecb61923..4a460c44e17e 100644
--- a/arch/s390/kernel/pgm_check.S
+++ b/arch/s390/kernel/pgm_check.S
@@ -78,7 +78,7 @@ PGM_CHECK_DEFAULT			/* 34 */
 PGM_CHECK_DEFAULT			/* 35 */
 PGM_CHECK_DEFAULT			/* 36 */
 PGM_CHECK_DEFAULT			/* 37 */
-PGM_CHECK_64BIT(do_asce_exception)	/* 38 */
+PGM_CHECK_DEFAULT			/* 38 */
 PGM_CHECK_64BIT(do_dat_exception)	/* 39 */
 PGM_CHECK_64BIT(do_dat_exception)	/* 3a */
 PGM_CHECK_64BIT(do_dat_exception)	/* 3b */
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index 8f29762671cf..d95265b2719f 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -423,43 +423,6 @@ void __kprobes do_dat_exception(struct pt_regs *regs)
 		do_fault_error(regs, fault);
 }
 
-#ifdef CONFIG_64BIT
-void __kprobes do_asce_exception(struct pt_regs *regs)
-{
-	struct mm_struct *mm = current->mm;
-	struct vm_area_struct *vma;
-	unsigned long trans_exc_code;
-
-	/*
-	 * The instruction that caused the program check has
-	 * been nullified. Don't signal single step via SIGTRAP.
-	 */
-	clear_tsk_thread_flag(current, TIF_PER_TRAP);
-
-	trans_exc_code = regs->int_parm_long;
-	if (unlikely(!user_space_fault(trans_exc_code) || in_atomic() || !mm))
-		goto no_context;
-
-	down_read(&mm->mmap_sem);
-	vma = find_vma(mm, trans_exc_code & __FAIL_ADDR_MASK);
-	up_read(&mm->mmap_sem);
-
-	if (vma) {
-		update_mm(mm, current);
-		return;
-	}
-
-	/* User mode accesses just cause a SIGSEGV */
-	if (user_mode(regs)) {
-		do_sigsegv(regs, SEGV_MAPERR);
-		return;
-	}
-
-no_context:
-	do_no_context(regs);
-}
-#endif
-
 int __handle_fault(unsigned long uaddr, unsigned long pgm_int_code, int write)
 {
 	struct pt_regs regs;
diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index 40023290ee5b..6bcb045d2bd2 100644
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -101,18 +101,12 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 
 int s390_mmap_check(unsigned long addr, unsigned long len, unsigned long flags)
 {
-	int rc;
-
 	if (is_compat_task() || (TASK_SIZE >= (1UL << 53)))
 		return 0;
 	if (!(flags & MAP_FIXED))
 		addr = 0;
-	if ((addr + len) >= TASK_SIZE) {
-		rc = crst_table_upgrade(current->mm, 1UL << 53);
-		if (rc)
-			return rc;
-		update_mm(current->mm, current);
-	}
+	if ((addr + len) >= TASK_SIZE)
+		return crst_table_upgrade(current->mm, 1UL << 53);
 	return 0;
 }
 
@@ -132,7 +126,6 @@ s390_get_unmapped_area(struct file *filp, unsigned long addr,
 		rc = crst_table_upgrade(mm, 1UL << 53);
 		if (rc)
 			return (unsigned long) rc;
-		update_mm(mm, current);
 		area = arch_get_unmapped_area(filp, addr, len, pgoff, flags);
 	}
 	return area;
@@ -155,7 +148,6 @@ s390_get_unmapped_area_topdown(struct file *filp, const unsigned long addr,
 		rc = crst_table_upgrade(mm, 1UL << 53);
 		if (rc)
 			return (unsigned long) rc;
-		update_mm(mm, current);
 		area = arch_get_unmapped_area_topdown(filp, addr, len,
 						      pgoff, flags);
 	}
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index a9be08899b0c..0a2e5e086749 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -48,12 +48,23 @@ void crst_table_free(struct mm_struct *mm, unsigned long *table)
 }
 
 #ifdef CONFIG_64BIT
+static void __crst_table_upgrade(void *arg)
+{
+	struct mm_struct *mm = arg;
+
+	if (current->active_mm == mm)
+		update_mm(mm, current);
+	__tlb_flush_local();
+}
+
 int crst_table_upgrade(struct mm_struct *mm, unsigned long limit)
 {
 	unsigned long *table, *pgd;
 	unsigned long entry;
+	int flush;
 
 	BUG_ON(limit > (1UL << 53));
+	flush = 0;
 repeat:
 	table = crst_table_alloc(mm);
 	if (!table)
@@ -79,12 +90,15 @@ repeat:
 		mm->pgd = (pgd_t *) table;
 		mm->task_size = mm->context.asce_limit;
 		table = NULL;
+		flush = 1;
 	}
 	spin_unlock_bh(&mm->page_table_lock);
 	if (table)
 		crst_table_free(mm, table);
 	if (mm->context.asce_limit < limit)
 		goto repeat;
+	if (flush)
+		on_each_cpu(__crst_table_upgrade, mm, 0);
 	return 0;
 }
 
@@ -92,6 +106,8 @@ void crst_table_downgrade(struct mm_struct *mm, unsigned long limit)
 {
 	pgd_t *pgd;
 
+	if (current->active_mm == mm)
+		__tlb_flush_mm(mm);
 	while (mm->context.asce_limit > limit) {
 		pgd = mm->pgd;
 		switch (pgd_val(*pgd) & _REGION_ENTRY_TYPE_MASK) {
@@ -114,6 +130,8 @@ void crst_table_downgrade(struct mm_struct *mm, unsigned long limit)
 		mm->task_size = mm->context.asce_limit;
 		crst_table_free(mm, (unsigned long *) pgd);
 	}
+	if (current->active_mm == mm)
+		update_mm(mm, current);
 }
 #endif
 
-- 
cgit 


From 18da65e7d30a76ab3ca0ccd2b7ca0690f80f28e4 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 1 Nov 2013 13:21:54 +0300
Subject: quota: info leak in quota_getquota()

The if_dqblk struct has a 4 byte hole at the end of the struct so
uninitialized stack information is leaked to user space.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/quota/quota.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/quota/quota.c b/fs/quota/quota.c
index dea86e8967ee..2b363e23f36e 100644
--- a/fs/quota/quota.c
+++ b/fs/quota/quota.c
@@ -117,6 +117,7 @@ static int quota_setinfo(struct super_block *sb, int type, void __user *addr)
 
 static void copy_to_if_dqblk(struct if_dqblk *dst, struct fs_disk_quota *src)
 {
+	memset(dst, 0, sizeof(*dst));
 	dst->dqb_bhardlimit = src->d_blk_hardlimit;
 	dst->dqb_bsoftlimit = src->d_blk_softlimit;
 	dst->dqb_curspace = src->d_bcount;
-- 
cgit 


From 300016b960661b4df63690177b22ba5426ff5706 Mon Sep 17 00:00:00 2001
From: Mengdong Lin <mengdong.lin@intel.com>
Date: Mon, 4 Nov 2013 01:13:13 -0500
Subject: ALSA: hda - rename function not_share_unassigned_cvt()

The function name not_share_unassigned_cvt() is opposite to what it does.
This patch renames it to intel_not_share_assigned_cvt(), and addes comments
to explain why some Intel display codecs need this workaround.

Signed-off-by: Mengdong Lin <mengdong.lin@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index c3e3537b3196..e22323f50424 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -1328,7 +1328,16 @@ static int hdmi_choose_cvt(struct hda_codec *codec,
 	return 0;
 }
 
-static void not_share_unassigned_cvt(struct hda_codec *codec,
+/* Intel HDMI workaround to fix audio routing issue:
+ * For some Intel display codecs, pins share the same connection list.
+ * So a conveter can be selected by multiple pins and playback on any of these
+ * pins will generate sound on the external display, because audio flows from
+ * the same converter to the display pipeline. Also muting one pin may make
+ * other pins have no sound output.
+ * So this function assures that an assigned converter for a pin is not selected
+ * by any other pins.
+ */
+static void intel_not_share_assigned_cvt(struct hda_codec *codec,
 			hda_nid_t pin_nid, int mux_idx)
 {
 	struct hdmi_spec *spec = codec->spec;
@@ -1408,7 +1417,7 @@ static int hdmi_pcm_open(struct hda_pcm_stream *hinfo,
 
 	/* configure unused pins to choose other converters */
 	if (is_haswell(codec) || is_valleyview(codec))
-		not_share_unassigned_cvt(codec, per_pin->pin_nid, mux_idx);
+		intel_not_share_assigned_cvt(codec, per_pin->pin_nid, mux_idx);
 
 	snd_hda_spdif_ctls_assign(codec, pin_idx, per_cvt->cvt_nid);
 
-- 
cgit 


From 9ef0438a957937bf0edc26d58bce891034ff9e30 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Thu, 24 Oct 2013 17:36:31 -0300
Subject: perf probe: Fix typo

s/tyep/type/g.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-cznw5tnruonyoisxu8be11bv@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/probe-finder.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index e41b0941e18f..2200dad4c3f4 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -583,7 +583,7 @@ static int convert_variable_fields(Dwarf_Die *vr_die, const char *varname,
 	}
 
 	if (die_find_member(&type, field->name, die_mem) == NULL) {
-		pr_warning("%s(tyep:%s) has no member %s.\n", varname,
+		pr_warning("%s(type:%s) has no member %s.\n", varname,
 			   dwarf_diename(&type), field->name);
 		return -EINVAL;
 	}
-- 
cgit 


From 6e6dc401d528e3b64626de82322fa237f1c1e576 Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Sat, 26 Oct 2013 20:53:14 +0200
Subject: perf tools: Add missing data.h into LIB_H headers

Adding missing data.h into LIB_H headers so the build could keep up with
its changes.

Reported-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/20131026185314.GA14973@krava.brq.redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Makefile.perf | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 8a9ca3836043..bc7cfa18a1e3 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -295,6 +295,7 @@ LIB_H += ui/helpline.h
 LIB_H += ui/progress.h
 LIB_H += ui/util.h
 LIB_H += ui/ui.h
+LIB_H += util/data.h
 
 LIB_OBJS += $(OUTPUT)util/abspath.o
 LIB_OBJS += $(OUTPUT)util/alias.o
-- 
cgit 


From b9c5143a012a543c4ee872498d6dbae5c10beb2e Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Wed, 11 Sep 2013 14:46:56 +0200
Subject: perf tools: Use an accessor to read thread comm

As the thread comm is going to be implemented by way of a more
complicated data structure than just a pointer to a string from the
thread struct, convert the readers of comm to use an accessor instead of
accessing it directly.

The accessor will be later overriden to support an enhanced comm
implementation.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Tested-by: Jiri Olsa <jolsa@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-wr683zwy94hmj4ibogmnv9ce@git.kernel.org
[ Rename thread__comm_curr() to thread__comm_str() ]
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
[ Fixed up some minor const pointer issues ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-kmem.c                              |  2 +-
 tools/perf/builtin-lock.c                              |  2 +-
 tools/perf/builtin-sched.c                             | 16 ++++++++--------
 tools/perf/builtin-script.c                            |  6 +++---
 tools/perf/tests/hists_link.c                          |  2 +-
 tools/perf/ui/browsers/hists.c                         | 10 +++++-----
 tools/perf/util/event.c                                |  4 ++--
 tools/perf/util/scripting-engines/trace-event-perl.c   |  2 +-
 tools/perf/util/scripting-engines/trace-event-python.c |  4 ++--
 tools/perf/util/sort.c                                 | 11 ++++++-----
 tools/perf/util/thread.c                               |  7 ++++++-
 tools/perf/util/thread.h                               |  1 +
 12 files changed, 37 insertions(+), 30 deletions(-)

diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index 1126382659a9..a28970f7ddfb 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -315,7 +315,7 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
 		return -1;
 	}
 
-	dump_printf(" ... thread: %s:%d\n", thread->comm, thread->tid);
+	dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid);
 
 	if (evsel->handler.func != NULL) {
 		tracepoint_handler f = evsel->handler.func;
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 33c7253295b9..35f9aaa565cc 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -767,7 +767,7 @@ static void dump_threads(void)
 	while (node) {
 		st = container_of(node, struct thread_stat, rb);
 		t = perf_session__findnew(session, st->tid);
-		pr_info("%10d: %s\n", st->tid, t->comm);
+		pr_info("%10d: %s\n", st->tid, thread__comm_str(t));
 		node = rb_next(node);
 	};
 }
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index ddb5dc15be17..a81ab1828aa5 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -737,12 +737,12 @@ static int replay_fork_event(struct perf_sched *sched,
 
 	if (verbose) {
 		printf("fork event\n");
-		printf("... parent: %s/%d\n", parent->comm, parent->tid);
-		printf("...  child: %s/%d\n", child->comm, child->tid);
+		printf("... parent: %s/%d\n", thread__comm_str(parent), parent->tid);
+		printf("...  child: %s/%d\n", thread__comm_str(child), child->tid);
 	}
 
-	register_pid(sched, parent->tid, parent->comm);
-	register_pid(sched, child->tid, child->comm);
+	register_pid(sched, parent->tid, thread__comm_str(parent));
+	register_pid(sched, child->tid, thread__comm_str(child));
 	return 0;
 }
 
@@ -1077,7 +1077,7 @@ static int latency_migrate_task_event(struct perf_sched *sched,
 	if (!atoms) {
 		if (thread_atoms_insert(sched, migrant))
 			return -1;
-		register_pid(sched, migrant->tid, migrant->comm);
+		register_pid(sched, migrant->tid, thread__comm_str(migrant));
 		atoms = thread_atoms_search(&sched->atom_root, migrant, &sched->cmp_pid);
 		if (!atoms) {
 			pr_err("migration-event: Internal tree error");
@@ -1111,13 +1111,13 @@ static void output_lat_thread(struct perf_sched *sched, struct work_atoms *work_
 	/*
 	 * Ignore idle threads:
 	 */
-	if (!strcmp(work_list->thread->comm, "swapper"))
+	if (!strcmp(thread__comm_str(work_list->thread), "swapper"))
 		return;
 
 	sched->all_runtime += work_list->total_runtime;
 	sched->all_count   += work_list->nb_atoms;
 
-	ret = printf("  %s:%d ", work_list->thread->comm, work_list->thread->tid);
+	ret = printf("  %s:%d ", thread__comm_str(work_list->thread), work_list->thread->tid);
 
 	for (i = 0; i < 24 - ret; i++)
 		printf(" ");
@@ -1334,7 +1334,7 @@ static int map_switch_event(struct perf_sched *sched, struct perf_evsel *evsel,
 	printf("  %12.6f secs ", (double)timestamp/1e9);
 	if (new_shortname) {
 		printf("%s => %s:%d\n",
-			sched_in->shortname, sched_in->comm, sched_in->tid);
+		       sched_in->shortname, thread__comm_str(sched_in), sched_in->tid);
 	} else {
 		printf("\n");
 	}
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 0ae88c2538a1..b866cc8c3878 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -291,11 +291,11 @@ static void print_sample_start(struct perf_sample *sample,
 
 	if (PRINT_FIELD(COMM)) {
 		if (latency_format)
-			printf("%8.8s ", thread->comm);
+			printf("%8.8s ", thread__comm_str(thread));
 		else if (PRINT_FIELD(IP) && symbol_conf.use_callchain)
-			printf("%s ", thread->comm);
+			printf("%s ", thread__comm_str(thread));
 		else
-			printf("%16s ", thread->comm);
+			printf("%16s ", thread__comm_str(thread));
 	}
 
 	if (PRINT_FIELD(PID) && PRINT_FIELD(TID))
diff --git a/tools/perf/tests/hists_link.c b/tools/perf/tests/hists_link.c
index b51abcb2c243..4475b0ff76e5 100644
--- a/tools/perf/tests/hists_link.c
+++ b/tools/perf/tests/hists_link.c
@@ -421,7 +421,7 @@ static void print_hists(struct hists *hists)
 		he = rb_entry(node, struct hist_entry, rb_node_in);
 
 		pr_info("%2d: entry: %-8s [%-8s] %20s: period = %"PRIu64"\n",
-			i, he->thread->comm, he->ms.map->dso->short_name,
+			i, thread__comm_str(he->thread), he->ms.map->dso->short_name,
 			he->ms.sym->name, he->stat.period);
 
 		i++;
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 7ef36c360471..a91b6b219412 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1255,7 +1255,7 @@ static int hists__browser_title(struct hists *hists, char *bf, size_t size,
 	if (thread)
 		printed += scnprintf(bf + printed, size - printed,
 				    ", Thread: %s(%d)",
-				    (thread->comm_set ? thread->comm : ""),
+				     (thread->comm_set ? thread__comm_str(thread) : ""),
 				    thread->tid);
 	if (dso)
 		printed += scnprintf(bf + printed, size - printed,
@@ -1578,7 +1578,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
 		if (thread != NULL &&
 		    asprintf(&options[nr_options], "Zoom %s %s(%d) thread",
 			     (browser->hists->thread_filter ? "out of" : "into"),
-			     (thread->comm_set ? thread->comm : ""),
+			     (thread->comm_set ? thread__comm_str(thread) : ""),
 			     thread->tid) > 0)
 			zoom_thread = nr_options++;
 
@@ -1598,7 +1598,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
 			struct symbol *sym;
 
 			if (asprintf(&options[nr_options], "Run scripts for samples of thread [%s]",
-				browser->he_selection->thread->comm) > 0)
+				     thread__comm_str(browser->he_selection->thread)) > 0)
 				scripts_comm = nr_options++;
 
 			sym = browser->he_selection->ms.sym;
@@ -1701,7 +1701,7 @@ zoom_out_thread:
 				sort_thread.elide = false;
 			} else {
 				ui_helpline__fpush("To zoom out press <- or -> + \"Zoom out of %s(%d) thread\"",
-						   thread->comm_set ? thread->comm : "",
+						   thread->comm_set ? thread__comm_str(thread) : "",
 						   thread->tid);
 				browser->hists->thread_filter = thread;
 				sort_thread.elide = true;
@@ -1717,7 +1717,7 @@ do_scripts:
 			memset(script_opt, 0, 64);
 
 			if (choice == scripts_comm)
-				sprintf(script_opt, " -c %s ", browser->he_selection->thread->comm);
+				sprintf(script_opt, " -c %s ", thread__comm_str(browser->he_selection->thread));
 
 			if (choice == scripts_symbol)
 				sprintf(script_opt, " -S %s ", browser->he_selection->ms.sym->name);
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 49096ea58a15..7a2842ed53f3 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -721,10 +721,10 @@ int perf_event__preprocess_sample(const union perf_event *event,
 		return -1;
 
 	if (symbol_conf.comm_list &&
-	    !strlist__has_entry(symbol_conf.comm_list, thread->comm))
+	    !strlist__has_entry(symbol_conf.comm_list, thread__comm_str(thread)))
 		goto out_filtered;
 
-	dump_printf(" ... thread: %s:%d\n", thread->comm, thread->tid);
+	dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid);
 	/*
 	 * Have we already created the kernel maps for this machine?
 	 *
diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c
index c0c9795c4f02..d5e5969f6fea 100644
--- a/tools/perf/util/scripting-engines/trace-event-perl.c
+++ b/tools/perf/util/scripting-engines/trace-event-perl.c
@@ -273,7 +273,7 @@ static void perl_process_tracepoint(union perf_event *perf_event __maybe_unused,
 	int cpu = sample->cpu;
 	void *data = sample->raw_data;
 	unsigned long long nsecs = sample->time;
-	char *comm = thread->comm;
+	const char *comm = thread__comm_str(thread);
 
 	dSP;
 
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 95d91a0b23af..53c20e7fd900 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -250,7 +250,7 @@ static void python_process_tracepoint(union perf_event *perf_event
 	int cpu = sample->cpu;
 	void *data = sample->raw_data;
 	unsigned long long nsecs = sample->time;
-	char *comm = thread->comm;
+	const char *comm = thread__comm_str(thread);
 
 	t = PyTuple_New(MAX_FIELDS);
 	if (!t)
@@ -389,7 +389,7 @@ static void python_process_general_event(union perf_event *perf_event
 	pydict_set_item_string_decref(dict, "raw_buf", PyString_FromStringAndSize(
 			(const char *)sample->raw_data, sample->raw_size));
 	pydict_set_item_string_decref(dict, "comm",
-			PyString_FromString(thread->comm));
+			PyString_FromString(thread__comm_str(thread)));
 	if (al->map) {
 		pydict_set_item_string_decref(dict, "dso",
 			PyString_FromString(al->map->dso->name));
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 19b4aa279d1e..835e8bdd869f 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -42,7 +42,7 @@ static int repsep_snprintf(char *bf, size_t size, const char *fmt, ...)
 	return n;
 }
 
-static int64_t cmp_null(void *l, void *r)
+static int64_t cmp_null(const void *l, const void *r)
 {
 	if (!l && !r)
 		return 0;
@@ -63,8 +63,9 @@ sort__thread_cmp(struct hist_entry *left, struct hist_entry *right)
 static int hist_entry__thread_snprintf(struct hist_entry *he, char *bf,
 				       size_t size, unsigned int width)
 {
+	const char *comm = thread__comm_str(he->thread);
 	return repsep_snprintf(bf, size, "%*s:%5d", width - 6,
-			      he->thread->comm ?: "", he->thread->tid);
+			       comm ?: "", he->thread->tid);
 }
 
 struct sort_entry sort_thread = {
@@ -85,8 +86,8 @@ sort__comm_cmp(struct hist_entry *left, struct hist_entry *right)
 static int64_t
 sort__comm_collapse(struct hist_entry *left, struct hist_entry *right)
 {
-	char *comm_l = left->thread->comm;
-	char *comm_r = right->thread->comm;
+	const char *comm_l = thread__comm_str(left->thread);
+	const char *comm_r = thread__comm_str(right->thread);
 
 	if (!comm_l || !comm_r)
 		return cmp_null(comm_l, comm_r);
@@ -97,7 +98,7 @@ sort__comm_collapse(struct hist_entry *left, struct hist_entry *right)
 static int hist_entry__comm_snprintf(struct hist_entry *he, char *bf,
 				     size_t size, unsigned int width)
 {
-	return repsep_snprintf(bf, size, "%*s", width, he->thread->comm);
+	return repsep_snprintf(bf, size, "%*s", width, thread__comm_str(he->thread));
 }
 
 struct sort_entry sort_comm = {
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 80d19a086072..56760079565b 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -45,6 +45,11 @@ int thread__set_comm(struct thread *thread, const char *comm)
 	return err;
 }
 
+const char *thread__comm_str(const struct thread *thread)
+{
+	return thread->comm;
+}
+
 int thread__comm_len(struct thread *thread)
 {
 	if (!thread->comm_len) {
@@ -58,7 +63,7 @@ int thread__comm_len(struct thread *thread)
 
 size_t thread__fprintf(struct thread *thread, FILE *fp)
 {
-	return fprintf(fp, "Thread %d %s\n", thread->tid, thread->comm) +
+	return fprintf(fp, "Thread %d %s\n", thread->tid, thread__comm_str(thread)) +
 	       map_groups__fprintf(&thread->mg, verbose, fp);
 }
 
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index 4ebbb40d46d4..6561ad21d9a7 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -35,6 +35,7 @@ static inline void thread__exited(struct thread *thread)
 
 int thread__set_comm(struct thread *self, const char *comm);
 int thread__comm_len(struct thread *self);
+const char *thread__comm_str(const struct thread *thread);
 void thread__insert_map(struct thread *self, struct map *map);
 int thread__fork(struct thread *self, struct thread *parent);
 size_t thread__fprintf(struct thread *thread, FILE *fp);
-- 
cgit 


From b400126add8fccf47ff663e5f20604e121f55f84 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Mon, 4 Nov 2013 09:22:01 +0100
Subject: CREDITS: Add Yoshinori Sato for h8300

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 CREDITS | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/CREDITS b/CREDITS
index 9416a9a8b95e..e84f4e93b64b 100644
--- a/CREDITS
+++ b/CREDITS
@@ -3153,6 +3153,11 @@ N: Dipankar Sarma
 E: dipankar@in.ibm.com
 D: RCU
 
+N: Yoshinori Sato
+E: ysato@users.sourceforge.jp
+D: uClinux for Renesas H8/300 (H8300)
+D: http://uclinux-h8.sourceforge.jp/
+
 N: Hannu Savolainen
 E: hannu@opensound.com
 D: Maintainer of the sound drivers until 2.1.x days.
-- 
cgit 


From 162f0befda3becc2cc9f44075fccc030e55baec1 Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Wed, 11 Sep 2013 16:18:24 +0200
Subject: perf tools: Add time argument on COMM setting

This way we can later delimit a lifecycle for the COMM and map a hist to
a precise COMM:timeslice couple.

PERF_RECORD_COMM and PERF_RECORD_FORK events that don't have
PERF_SAMPLE_TIME samples can only send 0 value as a timestamp and thus
should overwrite any previous COMM on a given thread because there is no
sensible way to keep track of all the comms lifecycles in a thread
without time informations.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Tested-by: Jiri Olsa <jolsa@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-6tyow99vgmmtt9qwr2u2lqd7@git.kernel.org
[ Made it cope with PERF_RECORD_MMAP2 ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-top.c        |  2 +-
 tools/perf/builtin-trace.c      | 12 ++++++------
 tools/perf/tests/code-reading.c |  2 +-
 tools/perf/tests/hists_link.c   |  4 ++--
 tools/perf/util/event.c         | 28 ++++++++++++++--------------
 tools/perf/util/machine.c       | 39 ++++++++++++++++++++++-----------------
 tools/perf/util/machine.h       | 21 ++++++++++++++-------
 tools/perf/util/session.c       |  2 +-
 tools/perf/util/thread.c        |  6 ++++--
 tools/perf/util/thread.h        |  4 ++--
 10 files changed, 67 insertions(+), 53 deletions(-)

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index a6ea956a533e..21db76d71ddf 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -856,7 +856,7 @@ static void perf_top__mmap_read_idx(struct perf_top *top, int idx)
 						   &sample, machine);
 		} else if (event->header.type < PERF_RECORD_MAX) {
 			hists__inc_nr_events(&evsel->hists, event->header.type);
-			machine__process_event(machine, event);
+			machine__process_event(machine, event, &sample);
 		} else
 			++session->stats.nr_unknown_events;
 next_event:
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index dc3da654ff12..95d639212d98 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1122,7 +1122,7 @@ static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thre
 }
 
 static int trace__process_event(struct trace *trace, struct machine *machine,
-				union perf_event *event)
+				union perf_event *event, struct perf_sample *sample)
 {
 	int ret = 0;
 
@@ -1130,9 +1130,9 @@ static int trace__process_event(struct trace *trace, struct machine *machine,
 	case PERF_RECORD_LOST:
 		color_fprintf(trace->output, PERF_COLOR_RED,
 			      "LOST %" PRIu64 " events!\n", event->lost.lost);
-		ret = machine__process_lost_event(machine, event);
+		ret = machine__process_lost_event(machine, event, sample);
 	default:
-		ret = machine__process_event(machine, event);
+		ret = machine__process_event(machine, event, sample);
 		break;
 	}
 
@@ -1141,11 +1141,11 @@ static int trace__process_event(struct trace *trace, struct machine *machine,
 
 static int trace__tool_process(struct perf_tool *tool,
 			       union perf_event *event,
-			       struct perf_sample *sample __maybe_unused,
+			       struct perf_sample *sample,
 			       struct machine *machine)
 {
 	struct trace *trace = container_of(tool, struct trace, tool);
-	return trace__process_event(trace, machine, event);
+	return trace__process_event(trace, machine, event, sample);
 }
 
 static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist)
@@ -1751,7 +1751,7 @@ again:
 				trace->base_time = sample.time;
 
 			if (type != PERF_RECORD_SAMPLE) {
-				trace__process_event(trace, trace->host, event);
+				trace__process_event(trace, trace->host, event, &sample);
 				continue;
 			}
 
diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index e3fedfa2906e..49ccc3b2995e 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -276,7 +276,7 @@ static int process_event(struct machine *machine, struct perf_evlist *evlist,
 		return process_sample_event(machine, evlist, event, state);
 
 	if (event->header.type < PERF_RECORD_MAX)
-		return machine__process_event(machine, event);
+		return machine__process_event(machine, event, NULL);
 
 	return 0;
 }
diff --git a/tools/perf/tests/hists_link.c b/tools/perf/tests/hists_link.c
index 4475b0ff76e5..6c337e653540 100644
--- a/tools/perf/tests/hists_link.c
+++ b/tools/perf/tests/hists_link.c
@@ -93,7 +93,7 @@ static struct machine *setup_fake_machine(struct machines *machines)
 		if (thread == NULL)
 			goto out;
 
-		thread__set_comm(thread, fake_threads[i].comm);
+		thread__set_comm(thread, fake_threads[i].comm, 0);
 	}
 
 	for (i = 0; i < ARRAY_SIZE(fake_mmap_info); i++) {
@@ -110,7 +110,7 @@ static struct machine *setup_fake_machine(struct machines *machines)
 		strcpy(fake_mmap_event.mmap.filename,
 		       fake_mmap_info[i].filename);
 
-		machine__process_mmap_event(machine, &fake_mmap_event);
+		machine__process_mmap_event(machine, &fake_mmap_event, NULL);
 	}
 
 	for (i = 0; i < ARRAY_SIZE(fake_symbols); i++) {
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 7a2842ed53f3..c26b3539187b 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -512,18 +512,18 @@ size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp)
 
 int perf_event__process_comm(struct perf_tool *tool __maybe_unused,
 			     union perf_event *event,
-			     struct perf_sample *sample __maybe_unused,
+			     struct perf_sample *sample,
 			     struct machine *machine)
 {
-	return machine__process_comm_event(machine, event);
+	return machine__process_comm_event(machine, event, sample);
 }
 
 int perf_event__process_lost(struct perf_tool *tool __maybe_unused,
 			     union perf_event *event,
-			     struct perf_sample *sample __maybe_unused,
+			     struct perf_sample *sample,
 			     struct machine *machine)
 {
-	return machine__process_lost_event(machine, event);
+	return machine__process_lost_event(machine, event, sample);
 }
 
 size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp)
@@ -546,18 +546,18 @@ size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp)
 
 int perf_event__process_mmap(struct perf_tool *tool __maybe_unused,
 			     union perf_event *event,
-			     struct perf_sample *sample __maybe_unused,
+			     struct perf_sample *sample,
 			     struct machine *machine)
 {
-	return machine__process_mmap_event(machine, event);
+	return machine__process_mmap_event(machine, event, sample);
 }
 
 int perf_event__process_mmap2(struct perf_tool *tool __maybe_unused,
 			     union perf_event *event,
-			     struct perf_sample *sample __maybe_unused,
+			     struct perf_sample *sample,
 			     struct machine *machine)
 {
-	return machine__process_mmap2_event(machine, event);
+	return machine__process_mmap2_event(machine, event, sample);
 }
 
 size_t perf_event__fprintf_task(union perf_event *event, FILE *fp)
@@ -569,18 +569,18 @@ size_t perf_event__fprintf_task(union perf_event *event, FILE *fp)
 
 int perf_event__process_fork(struct perf_tool *tool __maybe_unused,
 			     union perf_event *event,
-			     struct perf_sample *sample __maybe_unused,
+			     struct perf_sample *sample,
 			     struct machine *machine)
 {
-	return machine__process_fork_event(machine, event);
+	return machine__process_fork_event(machine, event, sample);
 }
 
 int perf_event__process_exit(struct perf_tool *tool __maybe_unused,
 			     union perf_event *event,
-			     struct perf_sample *sample __maybe_unused,
+			     struct perf_sample *sample,
 			     struct machine *machine)
 {
-	return machine__process_exit_event(machine, event);
+	return machine__process_exit_event(machine, event, sample);
 }
 
 size_t perf_event__fprintf(union perf_event *event, FILE *fp)
@@ -611,10 +611,10 @@ size_t perf_event__fprintf(union perf_event *event, FILE *fp)
 
 int perf_event__process(struct perf_tool *tool __maybe_unused,
 			union perf_event *event,
-			struct perf_sample *sample __maybe_unused,
+			struct perf_sample *sample,
 			struct machine *machine)
 {
-	return machine__process_event(machine, event);
+	return machine__process_event(machine, event, sample);
 }
 
 void thread__find_addr_map(struct thread *self,
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index ea93425cce95..ce034c183a7e 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -40,7 +40,7 @@ int machine__init(struct machine *machine, const char *root_dir, pid_t pid)
 			return -ENOMEM;
 
 		snprintf(comm, sizeof(comm), "[guest/%d]", pid);
-		thread__set_comm(thread, comm);
+		thread__set_comm(thread, comm, 0);
 	}
 
 	return 0;
@@ -331,7 +331,8 @@ struct thread *machine__find_thread(struct machine *machine, pid_t tid)
 	return __machine__findnew_thread(machine, 0, tid, false);
 }
 
-int machine__process_comm_event(struct machine *machine, union perf_event *event)
+int machine__process_comm_event(struct machine *machine, union perf_event *event,
+				struct perf_sample *sample)
 {
 	struct thread *thread = machine__findnew_thread(machine,
 							event->comm.pid,
@@ -340,7 +341,7 @@ int machine__process_comm_event(struct machine *machine, union perf_event *event
 	if (dump_trace)
 		perf_event__fprintf_comm(event, stdout);
 
-	if (thread == NULL || thread__set_comm(thread, event->comm.comm)) {
+	if (thread == NULL || thread__set_comm(thread, event->comm.comm, sample->time)) {
 		dump_printf("problem processing PERF_RECORD_COMM, skipping event.\n");
 		return -1;
 	}
@@ -349,7 +350,7 @@ int machine__process_comm_event(struct machine *machine, union perf_event *event
 }
 
 int machine__process_lost_event(struct machine *machine __maybe_unused,
-				union perf_event *event)
+				union perf_event *event, struct perf_sample *sample __maybe_unused)
 {
 	dump_printf(": id:%" PRIu64 ": lost:%" PRIu64 "\n",
 		    event->lost.id, event->lost.lost);
@@ -984,7 +985,8 @@ out_problem:
 }
 
 int machine__process_mmap2_event(struct machine *machine,
-				 union perf_event *event)
+				 union perf_event *event,
+				 struct perf_sample *sample __maybe_unused)
 {
 	u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
 	struct thread *thread;
@@ -1031,7 +1033,8 @@ out_problem:
 	return 0;
 }
 
-int machine__process_mmap_event(struct machine *machine, union perf_event *event)
+int machine__process_mmap_event(struct machine *machine, union perf_event *event,
+				struct perf_sample *sample __maybe_unused)
 {
 	u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
 	struct thread *thread;
@@ -1088,7 +1091,8 @@ static void machine__remove_thread(struct machine *machine, struct thread *th)
 	list_add_tail(&th->node, &machine->dead_threads);
 }
 
-int machine__process_fork_event(struct machine *machine, union perf_event *event)
+int machine__process_fork_event(struct machine *machine, union perf_event *event,
+				struct perf_sample *sample)
 {
 	struct thread *thread = machine__find_thread(machine, event->fork.tid);
 	struct thread *parent = machine__findnew_thread(machine,
@@ -1105,7 +1109,7 @@ int machine__process_fork_event(struct machine *machine, union perf_event *event
 		perf_event__fprintf_task(event, stdout);
 
 	if (thread == NULL || parent == NULL ||
-	    thread__fork(thread, parent) < 0) {
+	    thread__fork(thread, parent, sample->time) < 0) {
 		dump_printf("problem processing PERF_RECORD_FORK, skipping event.\n");
 		return -1;
 	}
@@ -1113,8 +1117,8 @@ int machine__process_fork_event(struct machine *machine, union perf_event *event
 	return 0;
 }
 
-int machine__process_exit_event(struct machine *machine __maybe_unused,
-				union perf_event *event)
+int machine__process_exit_event(struct machine *machine, union perf_event *event,
+				struct perf_sample *sample __maybe_unused)
 {
 	struct thread *thread = machine__find_thread(machine, event->fork.tid);
 
@@ -1127,23 +1131,24 @@ int machine__process_exit_event(struct machine *machine __maybe_unused,
 	return 0;
 }
 
-int machine__process_event(struct machine *machine, union perf_event *event)
+int machine__process_event(struct machine *machine, union perf_event *event,
+			   struct perf_sample *sample)
 {
 	int ret;
 
 	switch (event->header.type) {
 	case PERF_RECORD_COMM:
-		ret = machine__process_comm_event(machine, event); break;
+		ret = machine__process_comm_event(machine, event, sample); break;
 	case PERF_RECORD_MMAP:
-		ret = machine__process_mmap_event(machine, event); break;
+		ret = machine__process_mmap_event(machine, event, sample); break;
 	case PERF_RECORD_MMAP2:
-		ret = machine__process_mmap2_event(machine, event); break;
+		ret = machine__process_mmap2_event(machine, event, sample); break;
 	case PERF_RECORD_FORK:
-		ret = machine__process_fork_event(machine, event); break;
+		ret = machine__process_fork_event(machine, event, sample); break;
 	case PERF_RECORD_EXIT:
-		ret = machine__process_exit_event(machine, event); break;
+		ret = machine__process_exit_event(machine, event, sample); break;
 	case PERF_RECORD_LOST:
-		ret = machine__process_lost_event(machine, event); break;
+		ret = machine__process_lost_event(machine, event, sample); break;
 	default:
 		ret = -1;
 		break;
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h
index 4c1f5d567f54..2389ba81fafe 100644
--- a/tools/perf/util/machine.h
+++ b/tools/perf/util/machine.h
@@ -40,13 +40,20 @@ struct map *machine__kernel_map(struct machine *machine, enum map_type type)
 
 struct thread *machine__find_thread(struct machine *machine, pid_t tid);
 
-int machine__process_comm_event(struct machine *machine, union perf_event *event);
-int machine__process_exit_event(struct machine *machine, union perf_event *event);
-int machine__process_fork_event(struct machine *machine, union perf_event *event);
-int machine__process_lost_event(struct machine *machine, union perf_event *event);
-int machine__process_mmap_event(struct machine *machine, union perf_event *event);
-int machine__process_mmap2_event(struct machine *machine, union perf_event *event);
-int machine__process_event(struct machine *machine, union perf_event *event);
+int machine__process_comm_event(struct machine *machine, union perf_event *event,
+				struct perf_sample *sample);
+int machine__process_exit_event(struct machine *machine, union perf_event *event,
+				struct perf_sample *sample);
+int machine__process_fork_event(struct machine *machine, union perf_event *event,
+				struct perf_sample *sample);
+int machine__process_lost_event(struct machine *machine, union perf_event *event,
+				struct perf_sample *sample);
+int machine__process_mmap_event(struct machine *machine, union perf_event *event,
+				struct perf_sample *sample);
+int machine__process_mmap2_event(struct machine *machine, union perf_event *event,
+				 struct perf_sample *sample);
+int machine__process_event(struct machine *machine, union perf_event *event,
+				struct perf_sample *sample);
 
 typedef void (*machine__process_t)(struct machine *machine, void *data);
 
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 4ba7b548e055..3c1b30103d54 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1100,7 +1100,7 @@ static struct thread *perf_session__register_idle_thread(struct perf_session *se
 {
 	struct thread *thread = perf_session__findnew(self, 0);
 
-	if (thread == NULL || thread__set_comm(thread, "swapper")) {
+	if (thread == NULL || thread__set_comm(thread, "swapper", 0)) {
 		pr_err("problem inserting idle task.\n");
 		thread = NULL;
 	}
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 56760079565b..0ea73fe383f5 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -31,7 +31,8 @@ void thread__delete(struct thread *thread)
 	free(thread);
 }
 
-int thread__set_comm(struct thread *thread, const char *comm)
+int thread__set_comm(struct thread *thread, const char *comm,
+		     u64 timestamp __maybe_unused)
 {
 	int err;
 
@@ -73,7 +74,8 @@ void thread__insert_map(struct thread *thread, struct map *map)
 	map_groups__insert(&thread->mg, map);
 }
 
-int thread__fork(struct thread *thread, struct thread *parent)
+int thread__fork(struct thread *thread, struct thread *parent,
+		 u64 timestamp __maybe_unused)
 {
 	int i;
 
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index 6561ad21d9a7..4e9724270a64 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -33,11 +33,11 @@ static inline void thread__exited(struct thread *thread)
 	thread->dead = true;
 }
 
-int thread__set_comm(struct thread *self, const char *comm);
+int thread__set_comm(struct thread *thread, const char *comm, u64 timestamp);
 int thread__comm_len(struct thread *self);
 const char *thread__comm_str(const struct thread *thread);
 void thread__insert_map(struct thread *self, struct map *map);
-int thread__fork(struct thread *self, struct thread *parent);
+int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp);
 size_t thread__fprintf(struct thread *thread, FILE *fp);
 
 static inline struct map *thread__find_map(struct thread *self,
-- 
cgit 


From da0169b3b9a460ecbb571dad6123fe3735b148d1 Mon Sep 17 00:00:00 2001
From: Eric Sandeen <sandeen@redhat.com>
Date: Mon, 4 Nov 2013 09:58:26 -0500
Subject: ext4: remove unreachable code in ext4_can_extents_be_merged()

Commit ec22ba8e ("ext4: disable merging of uninitialized extents")
ensured that if either extent under consideration is uninit, we
decline to merge, and immediately return.

But right after that test, we test again for an uninit
extent; we can never hit this.  So just remove the impossible
test and associated variable.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>
---
 fs/ext4/extents.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 54d52afcdb19..de6d4674ba6e 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -1666,7 +1666,7 @@ int
 ext4_can_extents_be_merged(struct inode *inode, struct ext4_extent *ex1,
 				struct ext4_extent *ex2)
 {
-	unsigned short ext1_ee_len, ext2_ee_len, max_len;
+	unsigned short ext1_ee_len, ext2_ee_len;
 
 	/*
 	 * Make sure that both extents are initialized. We don't merge
@@ -1677,11 +1677,6 @@ ext4_can_extents_be_merged(struct inode *inode, struct ext4_extent *ex1,
 	if (ext4_ext_is_uninitialized(ex1) || ext4_ext_is_uninitialized(ex2))
 		return 0;
 
-	if (ext4_ext_is_uninitialized(ex1))
-		max_len = EXT_UNINIT_MAX_LEN;
-	else
-		max_len = EXT_INIT_MAX_LEN;
-
 	ext1_ee_len = ext4_ext_get_actual_len(ex1);
 	ext2_ee_len = ext4_ext_get_actual_len(ex2);
 
@@ -1694,7 +1689,7 @@ ext4_can_extents_be_merged(struct inode *inode, struct ext4_extent *ex1,
 	 * as an RO_COMPAT feature, refuse to merge to extents if
 	 * this can result in the top bit of ee_len being set.
 	 */
-	if (ext1_ee_len + ext2_ee_len > max_len)
+	if (ext1_ee_len + ext2_ee_len > EXT_INIT_MAX_LEN)
 		return 0;
 #ifdef AGGRESSIVE_TEST
 	if (ext1_ee_len >= 4)
-- 
cgit 


From 1902efe7f626fdebe1520f5ff11f1309ec506708 Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Wed, 11 Sep 2013 16:56:44 +0200
Subject: perf tools: Add new COMM infrastructure

This new COMM infrastructure provides two features:

1) It keeps track of all comms lifecycle for a given thread. This way we
can associate a timeframe to any thread COMM, as long as
PERF_SAMPLE_TIME samples are joined to COMM and fork events.

As a result we should have more precise COMM sorted hists with seperated
entries for pre and post exec time after a fork.

2) It also makes sure that a given COMM string is not duplicated but
rather shared among the threads that refer to it. This way the threads
COMM can be compared against pointer values from the sort
infrastructure.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Tested-by: Jiri Olsa <jolsa@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-hwjf70b2wve9m2kosxiq8bb3@git.kernel.org
[ Rename some accessor functions ]
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
[ Use __ as separator for class__method for private comm_str methods ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Makefile.perf   |   2 +
 tools/perf/builtin-trace.c |   4 +-
 tools/perf/util/comm.c     | 106 +++++++++++++++++++++++++++++++++++++++++++++
 tools/perf/util/comm.h     |  20 +++++++++
 tools/perf/util/thread.c   |  92 +++++++++++++++++++++++++++++----------
 tools/perf/util/thread.h   |   3 +-
 6 files changed, 200 insertions(+), 27 deletions(-)
 create mode 100644 tools/perf/util/comm.c
 create mode 100644 tools/perf/util/comm.h

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index bc7cfa18a1e3..cb52bdb755c7 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -273,6 +273,7 @@ LIB_H += util/color.h
 LIB_H += util/values.h
 LIB_H += util/sort.h
 LIB_H += util/hist.h
+LIB_H += util/comm.h
 LIB_H += util/thread.h
 LIB_H += util/thread_map.h
 LIB_H += util/trace-event.h
@@ -341,6 +342,7 @@ LIB_OBJS += $(OUTPUT)util/machine.o
 LIB_OBJS += $(OUTPUT)util/map.o
 LIB_OBJS += $(OUTPUT)util/pstack.o
 LIB_OBJS += $(OUTPUT)util/session.o
+LIB_OBJS += $(OUTPUT)util/comm.o
 LIB_OBJS += $(OUTPUT)util/thread.o
 LIB_OBJS += $(OUTPUT)util/thread_map.o
 LIB_OBJS += $(OUTPUT)util/trace-event-parse.o
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 95d639212d98..b3e57dc64546 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1114,7 +1114,7 @@ static size_t trace__fprintf_entry_head(struct trace *trace, struct thread *thre
 
 	if (trace->multiple_threads) {
 		if (trace->show_comm)
-			printed += fprintf(fp, "%.14s/", thread->comm);
+			printed += fprintf(fp, "%.14s/", thread__comm_str(thread));
 		printed += fprintf(fp, "%d ", thread->tid);
 	}
 
@@ -1986,7 +1986,7 @@ static int trace__fprintf_one_thread(struct thread *thread, void *priv)
 	else if (ratio > 5.0)
 		color = PERF_COLOR_YELLOW;
 
-	printed += color_fprintf(fp, color, "%20s", thread->comm);
+	printed += color_fprintf(fp, color, "%20s", thread__comm_str(thread));
 	printed += fprintf(fp, " - %-5d :%11lu   [", thread->tid, ttrace->nr_events);
 	printed += color_fprintf(fp, color, "%5.1f%%", ratio);
 	printed += fprintf(fp, " ] %10.3f ms\n", ttrace->runtime_ms);
diff --git a/tools/perf/util/comm.c b/tools/perf/util/comm.c
new file mode 100644
index 000000000000..8b3ac9f0207f
--- /dev/null
+++ b/tools/perf/util/comm.c
@@ -0,0 +1,106 @@
+#include "comm.h"
+#include "util.h"
+#include <stdlib.h>
+#include <stdio.h>
+
+struct comm_str {
+	char *str;
+	struct rb_node rb_node;
+	int ref;
+};
+
+/* Should perhaps be moved to struct machine */
+static struct rb_root comm_str_root;
+
+static void comm_str__get(struct comm_str *cs)
+{
+	cs->ref++;
+}
+
+static void comm_str__put(struct comm_str *cs)
+{
+	if (!--cs->ref) {
+		rb_erase(&cs->rb_node, &comm_str_root);
+		free(cs->str);
+		free(cs);
+	}
+}
+
+static struct comm_str *comm_str__alloc(const char *str)
+{
+	struct comm_str *cs;
+
+	cs = zalloc(sizeof(*cs));
+	if (!cs)
+		return NULL;
+
+	cs->str = strdup(str);
+	if (!cs->str) {
+		free(cs);
+		return NULL;
+	}
+
+	return cs;
+}
+
+static struct comm_str *comm_str__findnew(const char *str, struct rb_root *root)
+{
+	struct rb_node **p = &root->rb_node;
+	struct rb_node *parent = NULL;
+	struct comm_str *iter, *new;
+	int cmp;
+
+	while (*p != NULL) {
+		parent = *p;
+		iter = rb_entry(parent, struct comm_str, rb_node);
+
+		cmp = strcmp(str, iter->str);
+		if (!cmp)
+			return iter;
+
+		if (cmp < 0)
+			p = &(*p)->rb_left;
+		else
+			p = &(*p)->rb_right;
+	}
+
+	new = comm_str__alloc(str);
+	if (!new)
+		return NULL;
+
+	rb_link_node(&new->rb_node, parent, p);
+	rb_insert_color(&new->rb_node, root);
+
+	return new;
+}
+
+struct comm *comm__new(const char *str, u64 timestamp)
+{
+	struct comm *comm = zalloc(sizeof(*comm));
+
+	if (!comm)
+		return NULL;
+
+	comm->start = timestamp;
+
+	comm->comm_str = comm_str__findnew(str, &comm_str_root);
+	if (!comm->comm_str) {
+		free(comm);
+		return NULL;
+	}
+
+	comm_str__get(comm->comm_str);
+
+	return comm;
+}
+
+void comm__free(struct comm *comm)
+{
+	comm_str__put(comm->comm_str);
+	free(comm);
+}
+
+const char *comm__str(const struct comm *comm)
+{
+	return comm->comm_str->str;
+}
diff --git a/tools/perf/util/comm.h b/tools/perf/util/comm.h
new file mode 100644
index 000000000000..f62d215bede2
--- /dev/null
+++ b/tools/perf/util/comm.h
@@ -0,0 +1,20 @@
+#ifndef __PERF_COMM_H
+#define __PERF_COMM_H
+
+#include "../perf.h"
+#include <linux/rbtree.h>
+#include <linux/list.h>
+
+struct comm_str;
+
+struct comm {
+	struct comm_str *comm_str;
+	u64 start;
+	struct list_head list;
+};
+
+void comm__free(struct comm *comm);
+struct comm *comm__new(const char *str, u64 timestamp);
+const char *comm__str(const struct comm *comm);
+
+#endif  /* __PERF_COMM_H */
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 0ea73fe383f5..15c53c2e109e 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -6,9 +6,12 @@
 #include "thread.h"
 #include "util.h"
 #include "debug.h"
+#include "comm.h"
 
 struct thread *thread__new(pid_t pid, pid_t tid)
 {
+	char *comm_str;
+	struct comm *comm;
 	struct thread *thread = zalloc(sizeof(*thread));
 
 	if (thread != NULL) {
@@ -16,47 +19,88 @@ struct thread *thread__new(pid_t pid, pid_t tid)
 		thread->pid_ = pid;
 		thread->tid = tid;
 		thread->ppid = -1;
-		thread->comm = malloc(32);
-		if (thread->comm)
-			snprintf(thread->comm, 32, ":%d", thread->tid);
+		INIT_LIST_HEAD(&thread->comm_list);
+
+		comm_str = malloc(32);
+		if (!comm_str)
+			goto err_thread;
+
+		snprintf(comm_str, 32, ":%d", tid);
+		comm = comm__new(comm_str, 0);
+		free(comm_str);
+		if (!comm)
+			goto err_thread;
+
+		list_add(&comm->list, &thread->comm_list);
 	}
 
 	return thread;
+
+err_thread:
+	free(thread);
+	return NULL;
 }
 
 void thread__delete(struct thread *thread)
 {
+	struct comm *comm, *tmp;
+
 	map_groups__exit(&thread->mg);
-	free(thread->comm);
+	list_for_each_entry_safe(comm, tmp, &thread->comm_list, list) {
+		list_del(&comm->list);
+		comm__free(comm);
+	}
+
 	free(thread);
 }
 
-int thread__set_comm(struct thread *thread, const char *comm,
-		     u64 timestamp __maybe_unused)
+static struct comm *thread__comm(const struct thread *thread)
 {
-	int err;
+	if (list_empty(&thread->comm_list))
+		return NULL;
 
-	if (thread->comm)
-		free(thread->comm);
-	thread->comm = strdup(comm);
-	err = thread->comm == NULL ? -ENOMEM : 0;
-	if (!err) {
-		thread->comm_set = true;
+	return list_first_entry(&thread->comm_list, struct comm, list);
+}
+
+/* CHECKME: time should always be 0 if event aren't ordered */
+int thread__set_comm(struct thread *thread, const char *str, u64 timestamp)
+{
+	struct comm *new, *curr = thread__comm(thread);
+
+	/* Override latest entry if it had no specific time coverage */
+	if (!curr->start) {
+		list_del(&curr->list);
+		comm__free(curr);
 	}
-	return err;
+
+	new = comm__new(str, timestamp);
+	if (!new)
+		return -ENOMEM;
+
+	list_add(&new->list, &thread->comm_list);
+	thread->comm_set = true;
+
+	return 0;
 }
 
 const char *thread__comm_str(const struct thread *thread)
 {
-	return thread->comm;
+	const struct comm *comm = thread__comm(thread);
+
+	if (!comm)
+		return NULL;
+
+	return comm__str(comm);
 }
 
+/* CHECKME: it should probably better return the max comm len from its comm list */
 int thread__comm_len(struct thread *thread)
 {
 	if (!thread->comm_len) {
-		if (!thread->comm)
+		const char *comm = thread__comm_str(thread);
+		if (!comm)
 			return 0;
-		thread->comm_len = strlen(thread->comm);
+		thread->comm_len = strlen(comm);
 	}
 
 	return thread->comm_len;
@@ -74,17 +118,17 @@ void thread__insert_map(struct thread *thread, struct map *map)
 	map_groups__insert(&thread->mg, map);
 }
 
-int thread__fork(struct thread *thread, struct thread *parent,
-		 u64 timestamp __maybe_unused)
+int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp)
 {
-	int i;
+	int i, err;
 
 	if (parent->comm_set) {
-		if (thread->comm)
-			free(thread->comm);
-		thread->comm = strdup(parent->comm);
-		if (!thread->comm)
+		const char *comm = thread__comm_str(parent);
+		if (!comm)
 			return -ENOMEM;
+		err = thread__set_comm(thread, comm, timestamp);
+		if (!err)
+			return err;
 		thread->comm_set = true;
 	}
 
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index 4e9724270a64..8702c6b4163a 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -2,6 +2,7 @@
 #define __PERF_THREAD_H
 
 #include <linux/rbtree.h>
+#include <linux/list.h>
 #include <unistd.h>
 #include <sys/types.h>
 #include "symbol.h"
@@ -18,7 +19,7 @@ struct thread {
 	char			shortname[3];
 	bool			comm_set;
 	bool			dead; /* if set thread has exited */
-	char			*comm;
+	struct list_head	comm_list;
 	int			comm_len;
 
 	void			*priv;
-- 
cgit 


From fedd63d3cdc9004df43b02df5c874b8957992fe8 Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Wed, 11 Sep 2013 17:18:09 +0200
Subject: perf tools: Compare hists comm by addresses

Now that comm strings are allocated only once and refcounted to be shared
among threads, these can now be safely compared by addresses. This
should remove most hists collapses on post processing.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Tested-by: Jiri Olsa <jolsa@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1381468543-25334-8-git-send-email-namhyung@kernel.org
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
 tools/perf/util/sort.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 835e8bdd869f..bf91d0e5c16e 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -80,7 +80,8 @@ struct sort_entry sort_thread = {
 static int64_t
 sort__comm_cmp(struct hist_entry *left, struct hist_entry *right)
 {
-	return right->thread->tid - left->thread->tid;
+	/* Compare the addr that should be unique among comm */
+	return thread__comm_str(right->thread) - thread__comm_str(left->thread);
 }
 
 static int64_t
-- 
cgit 


From 4dfced359fbc719a35527416f1b4b3999647f68b Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Fri, 13 Sep 2013 16:28:57 +0900
Subject: perf tools: Get current comm instead of last one

At insert time, a hist entry should reference comm at the time otherwise
it'll get the last comm anyway.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Tested-by: Jiri Olsa <jolsa@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/n/tip-n6pykiiymtgmcjs834go2t8x@git.kernel.org
[ Fixed up const pointer issues ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/comm.c   | 15 +++++++++++++++
 tools/perf/util/comm.h   |  1 +
 tools/perf/util/hist.c   |  3 +++
 tools/perf/util/sort.c   | 14 +++++---------
 tools/perf/util/sort.h   |  1 +
 tools/perf/util/thread.c |  6 +++---
 tools/perf/util/thread.h |  2 ++
 7 files changed, 30 insertions(+), 12 deletions(-)

diff --git a/tools/perf/util/comm.c b/tools/perf/util/comm.c
index 8b3ac9f0207f..ee0df0e24cdb 100644
--- a/tools/perf/util/comm.c
+++ b/tools/perf/util/comm.c
@@ -94,6 +94,21 @@ struct comm *comm__new(const char *str, u64 timestamp)
 	return comm;
 }
 
+void comm__override(struct comm *comm, const char *str, u64 timestamp)
+{
+	struct comm_str *old = comm->comm_str;
+
+	comm->comm_str = comm_str__findnew(str, &comm_str_root);
+	if (!comm->comm_str) {
+		comm->comm_str = old;
+		return;
+	}
+
+	comm->start = timestamp;
+	comm_str__get(comm->comm_str);
+	comm_str__put(old);
+}
+
 void comm__free(struct comm *comm)
 {
 	comm_str__put(comm->comm_str);
diff --git a/tools/perf/util/comm.h b/tools/perf/util/comm.h
index f62d215bede2..7a86e5656710 100644
--- a/tools/perf/util/comm.h
+++ b/tools/perf/util/comm.h
@@ -16,5 +16,6 @@ struct comm {
 void comm__free(struct comm *comm);
 struct comm *comm__new(const char *str, u64 timestamp);
 const char *comm__str(const struct comm *comm);
+void comm__override(struct comm *comm, const char *str, u64 timestamp);
 
 #endif  /* __PERF_COMM_H */
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 7e80253074b0..30793f98c8bb 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -416,6 +416,7 @@ struct hist_entry *__hists__add_mem_entry(struct hists *hists,
 {
 	struct hist_entry entry = {
 		.thread	= al->thread,
+		.comm = thread__comm(al->thread),
 		.ms = {
 			.map	= al->map,
 			.sym	= al->sym,
@@ -446,6 +447,7 @@ struct hist_entry *__hists__add_branch_entry(struct hists *hists,
 {
 	struct hist_entry entry = {
 		.thread	= al->thread,
+		.comm = thread__comm(al->thread),
 		.ms = {
 			.map	= bi->to.map,
 			.sym	= bi->to.sym,
@@ -475,6 +477,7 @@ struct hist_entry *__hists__add_entry(struct hists *hists,
 {
 	struct hist_entry entry = {
 		.thread	= al->thread,
+		.comm = thread__comm(al->thread),
 		.ms = {
 			.map	= al->map,
 			.sym	= al->sym,
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index bf91d0e5c16e..3c1b75c8b9a6 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -1,5 +1,6 @@
 #include "sort.h"
 #include "hist.h"
+#include "comm.h"
 #include "symbol.h"
 
 regex_t		parent_regex;
@@ -81,25 +82,20 @@ static int64_t
 sort__comm_cmp(struct hist_entry *left, struct hist_entry *right)
 {
 	/* Compare the addr that should be unique among comm */
-	return thread__comm_str(right->thread) - thread__comm_str(left->thread);
+	return comm__str(right->comm) - comm__str(left->comm);
 }
 
 static int64_t
 sort__comm_collapse(struct hist_entry *left, struct hist_entry *right)
 {
-	const char *comm_l = thread__comm_str(left->thread);
-	const char *comm_r = thread__comm_str(right->thread);
-
-	if (!comm_l || !comm_r)
-		return cmp_null(comm_l, comm_r);
-
-	return strcmp(comm_l, comm_r);
+	/* Compare the addr that should be unique among comm */
+	return comm__str(right->comm) - comm__str(left->comm);
 }
 
 static int hist_entry__comm_snprintf(struct hist_entry *he, char *bf,
 				     size_t size, unsigned int width)
 {
-	return repsep_snprintf(bf, size, "%*s", width, thread__comm_str(he->thread));
+	return repsep_snprintf(bf, size, "%*s", width, comm__str(he->comm));
 }
 
 struct sort_entry sort_comm = {
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index bf4333694d3a..f4e16f359d64 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -84,6 +84,7 @@ struct hist_entry {
 	struct he_stat		stat;
 	struct map_symbol	ms;
 	struct thread		*thread;
+	struct comm		*comm;
 	u64			ip;
 	u64			transaction;
 	s32			cpu;
diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index 15c53c2e109e..cd8e2f592719 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -54,7 +54,7 @@ void thread__delete(struct thread *thread)
 	free(thread);
 }
 
-static struct comm *thread__comm(const struct thread *thread)
+struct comm *thread__comm(const struct thread *thread)
 {
 	if (list_empty(&thread->comm_list))
 		return NULL;
@@ -69,8 +69,8 @@ int thread__set_comm(struct thread *thread, const char *str, u64 timestamp)
 
 	/* Override latest entry if it had no specific time coverage */
 	if (!curr->start) {
-		list_del(&curr->list);
-		comm__free(curr);
+		comm__override(curr, str, timestamp);
+		return 0;
 	}
 
 	new = comm__new(str, timestamp);
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index 8702c6b4163a..373c055989ed 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -26,6 +26,7 @@ struct thread {
 };
 
 struct machine;
+struct comm;
 
 struct thread *thread__new(pid_t pid, pid_t tid);
 void thread__delete(struct thread *self);
@@ -36,6 +37,7 @@ static inline void thread__exited(struct thread *thread)
 
 int thread__set_comm(struct thread *thread, const char *comm, u64 timestamp);
 int thread__comm_len(struct thread *self);
+struct comm *thread__comm(const struct thread *thread);
 const char *thread__comm_str(const struct thread *thread);
 void thread__insert_map(struct thread *self, struct map *map);
 int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp);
-- 
cgit 


From f852fd621ca19f557f2e3d05900366be7c7afb83 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 1 Nov 2013 15:51:29 +0200
Subject: perf evsel: Add a debug print if perf_event_open fails

There is a debug print (at verbose level 2) for each call to
perf_event_open.  Add another debug print if the call fails, and print
the error number.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1383313899-15987-2-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evsel.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 3a334f001997..f0e65dec66a5 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1051,6 +1051,8 @@ retry_open:
 								     group_fd, flags);
 			if (FD(evsel, cpu, thread) < 0) {
 				err = -errno;
+				pr_debug2("perf_event_open failed, error %d\n",
+					  err);
 				goto try_fallback;
 			}
 			set_rlimit = NO_CHANGE;
-- 
cgit 


From 7ea95727af571d592c9d6aa7627690d44b114a2d Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 1 Nov 2013 15:51:30 +0200
Subject: perf script: Set up output options for in-stream attributes

Attributes (struct perf_event_attr) are recorded separately in the
perf.data file.  perf script uses them to set up output options.
However attributes can also be in the event stream, for example when the
input is a pipe (i.e. live mode).  This patch makes perf script process
in-stream attributes in the same way as on-file attributes.

Here is an example:

Before this patch:

$ perf record uname | perf script
Linux
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.015 MB (null) (~655 samples) ]
:4220  4220 [-01] 2933367.838906: cycles:

:4220  4220 [-01] 2933367.838910: cycles:

:4220  4220 [-01] 2933367.838912: cycles:

:4220  4220 [-01] 2933367.838914: cycles:

:4220  4220 [-01] 2933367.838916: cycles:

:4220  4220 [-01] 2933367.838918: cycles:

uname  4220 [-01] 2933367.838938: cycles:

uname  4220 [-01] 2933367.839207: cycles:

After this patch:

$ perf record uname | perf script
Linux
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.015 MB (null) (~655 samples) ]
           :4582  4582 2933425.707724: cycles:  ffffffff81043ffa native_write_msr_safe ([kernel.kallsyms])
           :4582  4582 2933425.707728: cycles:  ffffffff81043ffa native_write_msr_safe ([kernel.kallsyms])
           :4582  4582 2933425.707730: cycles:  ffffffff81043ffa native_write_msr_safe ([kernel.kallsyms])
           :4582  4582 2933425.707732: cycles:  ffffffff81043ffa native_write_msr_safe ([kernel.kallsyms])
           :4582  4582 2933425.707734: cycles:  ffffffff81043ffa native_write_msr_safe ([kernel.kallsyms])
           :4582  4582 2933425.707736: cycles:  ffffffff81309a24 memcpy ([kernel.kallsyms])
           uname  4582 2933425.707760: cycles:  ffffffff8109c1c7 enqueue_task_fair ([kernel.kallsyms])
           uname  4582 2933425.707978: cycles:  ffffffff81308457 clear_page_c ([kernel.kallsyms])

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1383313899-15987-3-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-script.c | 64 +++++++++++++++++++++++++++++++++------------
 1 file changed, 48 insertions(+), 16 deletions(-)

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index b866cc8c3878..baf17989a216 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -229,6 +229,24 @@ static int perf_evsel__check_attr(struct perf_evsel *evsel,
 	return 0;
 }
 
+static void set_print_ip_opts(struct perf_event_attr *attr)
+{
+	unsigned int type = attr->type;
+
+	output[type].print_ip_opts = 0;
+	if (PRINT_FIELD(IP))
+		output[type].print_ip_opts |= PRINT_IP_OPT_IP;
+
+	if (PRINT_FIELD(SYM))
+		output[type].print_ip_opts |= PRINT_IP_OPT_SYM;
+
+	if (PRINT_FIELD(DSO))
+		output[type].print_ip_opts |= PRINT_IP_OPT_DSO;
+
+	if (PRINT_FIELD(SYMOFFSET))
+		output[type].print_ip_opts |= PRINT_IP_OPT_SYMOFFSET;
+}
+
 /*
  * verify all user requested events exist and the samples
  * have the expected data
@@ -237,7 +255,6 @@ static int perf_session__check_output_opt(struct perf_session *session)
 {
 	int j;
 	struct perf_evsel *evsel;
-	struct perf_event_attr *attr;
 
 	for (j = 0; j < PERF_TYPE_MAX; ++j) {
 		evsel = perf_session__find_first_evtype(session, j);
@@ -260,20 +277,7 @@ static int perf_session__check_output_opt(struct perf_session *session)
 		if (evsel == NULL)
 			continue;
 
-		attr = &evsel->attr;
-
-		output[j].print_ip_opts = 0;
-		if (PRINT_FIELD(IP))
-			output[j].print_ip_opts |= PRINT_IP_OPT_IP;
-
-		if (PRINT_FIELD(SYM))
-			output[j].print_ip_opts |= PRINT_IP_OPT_SYM;
-
-		if (PRINT_FIELD(DSO))
-			output[j].print_ip_opts |= PRINT_IP_OPT_DSO;
-
-		if (PRINT_FIELD(SYMOFFSET))
-			output[j].print_ip_opts |= PRINT_IP_OPT_SYMOFFSET;
+		set_print_ip_opts(&evsel->attr);
 	}
 
 	return 0;
@@ -547,6 +551,34 @@ struct perf_script {
 	struct perf_session	*session;
 };
 
+static int process_attr(struct perf_tool *tool, union perf_event *event,
+			struct perf_evlist **pevlist)
+{
+	struct perf_script *scr = container_of(tool, struct perf_script, tool);
+	struct perf_evlist *evlist;
+	struct perf_evsel *evsel, *pos;
+	int err;
+
+	err = perf_event__process_attr(tool, event, pevlist);
+	if (err)
+		return err;
+
+	evlist = *pevlist;
+	evsel = perf_evlist__last(*pevlist);
+
+	if (evsel->attr.type >= PERF_TYPE_MAX)
+		return 0;
+
+	list_for_each_entry(pos, &evlist->entries, node) {
+		if (pos->attr.type == evsel->attr.type && pos != evsel)
+			return 0;
+	}
+
+	set_print_ip_opts(&evsel->attr);
+
+	return perf_evsel__check_attr(evsel, scr->session);
+}
+
 static void sig_handler(int sig __maybe_unused)
 {
 	session_done = 1;
@@ -1272,7 +1304,7 @@ int cmd_script(int argc, const char **argv, const char *prefix __maybe_unused)
 			.comm		 = perf_event__process_comm,
 			.exit		 = perf_event__process_exit,
 			.fork		 = perf_event__process_fork,
-			.attr		 = perf_event__process_attr,
+			.attr		 = process_attr,
 			.tracing_data	 = perf_event__process_tracing_data,
 			.build_id	 = perf_event__process_build_id,
 			.ordered_samples = true,
-- 
cgit 


From 28e962b9d79f496f214d7fc8ffd1a3f2a67e9090 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 1 Nov 2013 15:51:31 +0200
Subject: perf tools: Fix 32-bit cross build

Setting EXTRA_CFLAGS=-m32 did not work because it was not passed around.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1383313899-15987-4-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Makefile.perf                  | 2 +-
 tools/perf/config/Makefile                | 4 ++--
 tools/perf/config/feature-checks/Makefile | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index cb52bdb755c7..5b8639025aae 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -711,7 +711,7 @@ $(LIB_FILE): $(LIB_OBJS)
 TE_SOURCES = $(wildcard $(TRACE_EVENT_DIR)*.[ch])
 
 $(LIBTRACEEVENT): $(TE_SOURCES)
-	$(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) libtraceevent.a
+	$(QUIET_SUBDIR0)$(TRACE_EVENT_DIR) $(QUIET_SUBDIR1) O=$(OUTPUT) CFLAGS="-g -Wall $(EXTRA_CFLAGS)" libtraceevent.a
 
 $(LIBTRACEEVENT)-clean:
 	$(call QUIET_CLEAN, libtraceevent)
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 543aa953bab1..2f1d7d78f744 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -96,7 +96,7 @@ endif
 
 feature_check = $(eval $(feature_check_code))
 define feature_check_code
-  feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) LDFLAGS=$(LDFLAGS) -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
+  feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS)" LDFLAGS=$(LDFLAGS) -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
 endef
 
 feature_set = $(eval $(feature_set_code))
@@ -173,7 +173,7 @@ ifeq ($(feature-all), 1)
   #
   $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_set,$(feat)))
 else
-  $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) LDFLAGS=$(LDFLAGS) -i -j -C config/feature-checks $(CORE_FEATURE_TESTS) >/dev/null 2>&1)
+  $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS)" LDFLAGS=$(LDFLAGS) -i -j -C config/feature-checks $(CORE_FEATURE_TESTS) >/dev/null 2>&1)
   $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_check,$(feat)))
 endif
 
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 452b67cc4d7b..353c00cde4d6 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -31,7 +31,7 @@ CC := $(CC) -MD
 
 all: $(FILES)
 
-BUILD = $(CC) $(LDFLAGS) -o $(OUTPUT)$@ $@.c
+BUILD = $(CC) $(CFLAGS) $(LDFLAGS) -o $(OUTPUT)$@ $@.c
 
 ###############################
 
-- 
cgit 


From 8a0c4c2843d3b72e23c3c12079b8d5c3ae99f3e3 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 1 Nov 2013 15:51:32 +0200
Subject: perf tools: Fix libunwind build and feature detection for 32-bit
 build

Use -lunwind-x86 instead of -lunwind-x86_64 for 32-bit build.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1383313899-15987-5-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/config/Makefile                | 6 ++++--
 tools/perf/config/feature-checks/Makefile | 4 ++--
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 2f1d7d78f744..ffb5f55c8fba 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -25,9 +25,11 @@ ifeq ($(ARCH),x86_64)
     RAW_ARCH := x86_64
     CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT
     ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
+    LIBUNWIND_LIBS = -lunwind -lunwind-x86_64
+  else
+    LIBUNWIND_LIBS = -lunwind -lunwind-x86
   endif
   NO_PERF_REGS := 0
-  LIBUNWIND_LIBS = -lunwind -lunwind-x86_64
 endif
 
 ifeq ($(NO_PERF_REGS),0)
@@ -96,7 +98,7 @@ endif
 
 feature_check = $(eval $(feature_check_code))
 define feature_check_code
-  feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS)" LDFLAGS=$(LDFLAGS) -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
+  feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS)" LDFLAGS=$(LDFLAGS) LIBUNWIND_LIBS="$(LIBUNWIND_LIBS)" -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
 endef
 
 feature_set = $(eval $(feature_set_code))
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index 353c00cde4d6..d37d58d273fe 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -36,7 +36,7 @@ BUILD = $(CC) $(CFLAGS) $(LDFLAGS) -o $(OUTPUT)$@ $@.c
 ###############################
 
 test-all:
-	$(BUILD) -Werror -fstack-protector -fstack-protector-all -O2 -Werror -D_FORTIFY_SOURCE=2 -ldw -lelf -lnuma -lunwind -lunwind-x86_64 -lelf -laudit -I/usr/include/slang -lslang $(shell pkg-config --libs --cflags gtk+-2.0 2>/dev/null) $(FLAGS_PERL_EMBED) $(FLAGS_PYTHON_EMBED) -DPACKAGE='"perf"' -lbfd -ldl
+	$(BUILD) -Werror -fstack-protector -fstack-protector-all -O2 -Werror -D_FORTIFY_SOURCE=2 -ldw -lelf -lnuma $(LIBUNWIND_LIBS) -lelf -laudit -I/usr/include/slang -lslang $(shell pkg-config --libs --cflags gtk+-2.0 2>/dev/null) $(FLAGS_PERL_EMBED) $(FLAGS_PYTHON_EMBED) -DPACKAGE='"perf"' -lbfd -ldl
 
 test-hello:
 	$(BUILD)
@@ -72,7 +72,7 @@ test-libnuma:
 	$(BUILD) -lnuma
 
 test-libunwind:
-	$(BUILD) -lunwind -lunwind-x86_64 -lelf
+	$(BUILD) $(LIBUNWIND_LIBS) -lelf
 
 test-libaudit:
 	$(BUILD) -laudit
-- 
cgit 


From 026359658aecd348bc5c4a136a26f204b169103b Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 1 Nov 2013 15:51:33 +0200
Subject: perf evlist: Add a debug print if event buffer mmap fails

Add a debug print if mmap of the perf event ring buffer fails.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1383313899-15987-6-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evlist.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 0582f67fbefc..1c173ccb0ef2 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -607,6 +607,8 @@ static int __perf_evlist__mmap(struct perf_evlist *evlist,
 	evlist->mmap[idx].base = mmap(NULL, evlist->mmap_len, prot,
 				      MAP_SHARED, fd, 0);
 	if (evlist->mmap[idx].base == MAP_FAILED) {
+		pr_debug2("failed to mmap perf event ring buffer, error %d\n",
+			  errno);
 		evlist->mmap[idx].base = NULL;
 		return -1;
 	}
-- 
cgit 


From 1e7ed5ec54e3998bda6ea625599a0644404cb421 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 1 Nov 2013 15:51:35 +0200
Subject: perf evsel: Always use perf_evsel__set_sample_bit()

Always use perf_evsel__set_sample_bit() rather than just setting the
bit.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1383313899-15987-8-git-send-email-adrian.hunter@intel.com
[ Cope with 3090ffb "perf: Disable PERF_RECORD_MMAP2 support" ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evsel.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index f0e65dec66a5..47bbf03aa7ef 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -663,7 +663,7 @@ void perf_evsel__config(struct perf_evsel *evsel,
 	}
 
 	if (opts->sample_address)
-		attr->sample_type	|= PERF_SAMPLE_DATA_SRC;
+		perf_evsel__set_sample_bit(evsel, DATA_SRC);
 
 	if (opts->no_delay) {
 		attr->watermark = 0;
@@ -675,13 +675,13 @@ void perf_evsel__config(struct perf_evsel *evsel,
 	}
 
 	if (opts->sample_weight)
-		attr->sample_type	|= PERF_SAMPLE_WEIGHT;
+		perf_evsel__set_sample_bit(evsel, WEIGHT);
 
 	attr->mmap  = track;
 	attr->comm  = track;
 
 	if (opts->sample_transaction)
-		attr->sample_type	|= PERF_SAMPLE_TRANSACTION;
+		perf_evsel__set_sample_bit(evsel, TRANSACTION);
 
 	/*
 	 * XXX see the function comment above
-- 
cgit 


From 87b955247d71975460774435241be3aa05218a7b Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 1 Nov 2013 15:51:36 +0200
Subject: perf evsel: Add missing overflow check for TRANSACTION

Add missing overflow check for PERF_SAMPLE_TRANSACTION in
perf_evsel__parse_sample().

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1383313899-15987-9-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evsel.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 47bbf03aa7ef..b121717ce42a 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1481,6 +1481,7 @@ int perf_evsel__parse_sample(struct perf_evsel *evsel, union perf_event *event,
 
 	data->transaction = 0;
 	if (type & PERF_SAMPLE_TRANSACTION) {
+		OVERFLOW_CHECK_u64(array);
 		data->transaction = *array;
 		array++;
 	}
-- 
cgit 


From 091a4ef5a94d46d26a05f0c32d2f64800ed91306 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 1 Nov 2013 15:51:37 +0200
Subject: perf test: Update "sample parsing" test for PERF_SAMPLE_TRANSACTION

In fact the "sample parsing" test does not automatically check new
sample type bits - they must be added to the comparison logic.

Doing that shows that the test fails because the functions
perf_event__synthesize_sample() and perf_event__sample_event_size() have
not been updated with PERF_SAMPLE_TRANSACTION either.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1383313899-15987-10-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/tests/sample-parsing.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tools/perf/tests/sample-parsing.c b/tools/perf/tests/sample-parsing.c
index 61c9da2eb3a9..1b677202638d 100644
--- a/tools/perf/tests/sample-parsing.c
+++ b/tools/perf/tests/sample-parsing.c
@@ -121,6 +121,9 @@ static bool samples_same(const struct perf_sample *s1,
 	if (type & PERF_SAMPLE_DATA_SRC)
 		COMP(data_src);
 
+	if (type & PERF_SAMPLE_TRANSACTION)
+		COMP(transaction);
+
 	return true;
 }
 
@@ -165,6 +168,7 @@ static int do_test(u64 sample_type, u64 sample_regs_user, u64 read_format)
 		.cpu		= 110,
 		.raw_size	= sizeof(raw_data),
 		.data_src	= 111,
+		.transaction	= 112,
 		.raw_data	= (void *)raw_data,
 		.callchain	= &callchain.callchain,
 		.branch_stack	= &branch_stack.branch_stack,
@@ -273,7 +277,8 @@ int test__sample_parsing(void)
 
 	/*
 	 * Fail the test if it has not been updated when new sample format bits
-	 * were added.
+	 * were added.  Please actually update the test rather than just change
+	 * the condition below.
 	 */
 	if (PERF_SAMPLE_MAX > PERF_SAMPLE_TRANSACTION << 1) {
 		pr_debug("sample format has changed, some new PERF_SAMPLE_ bit was introduced - test needs updating\n");
-- 
cgit 


From 42d88910c717ba21089251d0ca559abfef0df22d Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 1 Nov 2013 15:51:38 +0200
Subject: perf evsel: Synthesize PERF_SAMPLE_TRANSACTION

Add missing PERF_SAMPLE_TRANSACTION to perf_event__synthesize_sample()
and perf_event__sample_event_size().

This makes the "sample parsing" test pass.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1383313899-15987-11-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evsel.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index b121717ce42a..5280820ed389 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -1578,6 +1578,9 @@ size_t perf_event__sample_event_size(const struct perf_sample *sample, u64 type,
 	if (type & PERF_SAMPLE_DATA_SRC)
 		result += sizeof(u64);
 
+	if (type & PERF_SAMPLE_TRANSACTION)
+		result += sizeof(u64);
+
 	return result;
 }
 
@@ -1751,6 +1754,11 @@ int perf_event__synthesize_sample(union perf_event *event, u64 type,
 		array++;
 	}
 
+	if (type & PERF_SAMPLE_TRANSACTION) {
+		*array = sample->transaction;
+		array++;
+	}
+
 	return 0;
 }
 
-- 
cgit 


From ac6976255076d4bf761abfbecb19d46af5b88046 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Fri, 1 Nov 2013 16:33:11 +0900
Subject: perf tools: Show single option when failed to parse

Current option parser outputs whole option help string when it failed to
parse an option.  However this is not good for user if the command has
many option, she might feel hard which one is related easily.

Fix it by just showing the help message of the given option only.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Requested-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Enthusiastically-Supported-by: Ingo Molnar <mingo@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1383291195-24386-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/parse-options.c | 217 ++++++++++++++++++++++++----------------
 tools/perf/util/parse-options.h |   4 +-
 2 files changed, 132 insertions(+), 89 deletions(-)

diff --git a/tools/perf/util/parse-options.c b/tools/perf/util/parse-options.c
index 2bc9e70df7e2..1caf7b9a01ee 100644
--- a/tools/perf/util/parse-options.c
+++ b/tools/perf/util/parse-options.c
@@ -339,10 +339,10 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
 		if (arg[1] != '-') {
 			ctx->opt = arg + 1;
 			if (internal_help && *ctx->opt == 'h')
-				return parse_options_usage(usagestr, options);
+				return usage_with_options_internal(usagestr, options, 0);
 			switch (parse_short_opt(ctx, options)) {
 			case -1:
-				return parse_options_usage(usagestr, options);
+				return parse_options_usage(usagestr, options, arg + 1, 1);
 			case -2:
 				goto unknown;
 			default:
@@ -352,10 +352,11 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
 				check_typos(arg + 1, options);
 			while (ctx->opt) {
 				if (internal_help && *ctx->opt == 'h')
-					return parse_options_usage(usagestr, options);
+					return usage_with_options_internal(usagestr, options, 0);
+				arg = ctx->opt;
 				switch (parse_short_opt(ctx, options)) {
 				case -1:
-					return parse_options_usage(usagestr, options);
+					return parse_options_usage(usagestr, options, arg, 1);
 				case -2:
 					/* fake a short option thing to hide the fact that we may have
 					 * started to parse aggregated stuff
@@ -383,12 +384,12 @@ int parse_options_step(struct parse_opt_ctx_t *ctx,
 		if (internal_help && !strcmp(arg + 2, "help-all"))
 			return usage_with_options_internal(usagestr, options, 1);
 		if (internal_help && !strcmp(arg + 2, "help"))
-			return parse_options_usage(usagestr, options);
+			return usage_with_options_internal(usagestr, options, 0);
 		if (!strcmp(arg + 2, "list-opts"))
 			return PARSE_OPT_LIST;
 		switch (parse_long_opt(ctx, arg + 2, options)) {
 		case -1:
-			return parse_options_usage(usagestr, options);
+			return parse_options_usage(usagestr, options, arg + 2, 0);
 		case -2:
 			goto unknown;
 		default:
@@ -445,6 +446,89 @@ int parse_options(int argc, const char **argv, const struct option *options,
 #define USAGE_OPTS_WIDTH 24
 #define USAGE_GAP         2
 
+static void print_option_help(const struct option *opts, int full)
+{
+	size_t pos;
+	int pad;
+
+	if (opts->type == OPTION_GROUP) {
+		fputc('\n', stderr);
+		if (*opts->help)
+			fprintf(stderr, "%s\n", opts->help);
+		return;
+	}
+	if (!full && (opts->flags & PARSE_OPT_HIDDEN))
+		return;
+
+	pos = fprintf(stderr, "    ");
+	if (opts->short_name)
+		pos += fprintf(stderr, "-%c", opts->short_name);
+	else
+		pos += fprintf(stderr, "    ");
+
+	if (opts->long_name && opts->short_name)
+		pos += fprintf(stderr, ", ");
+	if (opts->long_name)
+		pos += fprintf(stderr, "--%s", opts->long_name);
+
+	switch (opts->type) {
+	case OPTION_ARGUMENT:
+		break;
+	case OPTION_LONG:
+	case OPTION_U64:
+	case OPTION_INTEGER:
+	case OPTION_UINTEGER:
+		if (opts->flags & PARSE_OPT_OPTARG)
+			if (opts->long_name)
+				pos += fprintf(stderr, "[=<n>]");
+			else
+				pos += fprintf(stderr, "[<n>]");
+		else
+			pos += fprintf(stderr, " <n>");
+		break;
+	case OPTION_CALLBACK:
+		if (opts->flags & PARSE_OPT_NOARG)
+			break;
+		/* FALLTHROUGH */
+	case OPTION_STRING:
+		if (opts->argh) {
+			if (opts->flags & PARSE_OPT_OPTARG)
+				if (opts->long_name)
+					pos += fprintf(stderr, "[=<%s>]", opts->argh);
+				else
+					pos += fprintf(stderr, "[<%s>]", opts->argh);
+			else
+				pos += fprintf(stderr, " <%s>", opts->argh);
+		} else {
+			if (opts->flags & PARSE_OPT_OPTARG)
+				if (opts->long_name)
+					pos += fprintf(stderr, "[=...]");
+				else
+					pos += fprintf(stderr, "[...]");
+			else
+				pos += fprintf(stderr, " ...");
+		}
+		break;
+	default: /* OPTION_{BIT,BOOLEAN,SET_UINT,SET_PTR} */
+	case OPTION_END:
+	case OPTION_GROUP:
+	case OPTION_BIT:
+	case OPTION_BOOLEAN:
+	case OPTION_INCR:
+	case OPTION_SET_UINT:
+	case OPTION_SET_PTR:
+		break;
+	}
+
+	if (pos <= USAGE_OPTS_WIDTH)
+		pad = USAGE_OPTS_WIDTH - pos;
+	else {
+		fputc('\n', stderr);
+		pad = USAGE_OPTS_WIDTH;
+	}
+	fprintf(stderr, "%*s%s\n", pad + USAGE_GAP, "", opts->help);
+}
+
 int usage_with_options_internal(const char * const *usagestr,
 				const struct option *opts, int full)
 {
@@ -464,87 +548,9 @@ int usage_with_options_internal(const char * const *usagestr,
 	if (opts->type != OPTION_GROUP)
 		fputc('\n', stderr);
 
-	for (; opts->type != OPTION_END; opts++) {
-		size_t pos;
-		int pad;
-
-		if (opts->type == OPTION_GROUP) {
-			fputc('\n', stderr);
-			if (*opts->help)
-				fprintf(stderr, "%s\n", opts->help);
-			continue;
-		}
-		if (!full && (opts->flags & PARSE_OPT_HIDDEN))
-			continue;
-
-		pos = fprintf(stderr, "    ");
-		if (opts->short_name)
-			pos += fprintf(stderr, "-%c", opts->short_name);
-		else
-			pos += fprintf(stderr, "    ");
-
-		if (opts->long_name && opts->short_name)
-			pos += fprintf(stderr, ", ");
-		if (opts->long_name)
-			pos += fprintf(stderr, "--%s", opts->long_name);
+	for (  ; opts->type != OPTION_END; opts++)
+		print_option_help(opts, full);
 
-		switch (opts->type) {
-		case OPTION_ARGUMENT:
-			break;
-		case OPTION_LONG:
-		case OPTION_U64:
-		case OPTION_INTEGER:
-		case OPTION_UINTEGER:
-			if (opts->flags & PARSE_OPT_OPTARG)
-				if (opts->long_name)
-					pos += fprintf(stderr, "[=<n>]");
-				else
-					pos += fprintf(stderr, "[<n>]");
-			else
-				pos += fprintf(stderr, " <n>");
-			break;
-		case OPTION_CALLBACK:
-			if (opts->flags & PARSE_OPT_NOARG)
-				break;
-			/* FALLTHROUGH */
-		case OPTION_STRING:
-			if (opts->argh) {
-				if (opts->flags & PARSE_OPT_OPTARG)
-					if (opts->long_name)
-						pos += fprintf(stderr, "[=<%s>]", opts->argh);
-					else
-						pos += fprintf(stderr, "[<%s>]", opts->argh);
-				else
-					pos += fprintf(stderr, " <%s>", opts->argh);
-			} else {
-				if (opts->flags & PARSE_OPT_OPTARG)
-					if (opts->long_name)
-						pos += fprintf(stderr, "[=...]");
-					else
-						pos += fprintf(stderr, "[...]");
-				else
-					pos += fprintf(stderr, " ...");
-			}
-			break;
-		default: /* OPTION_{BIT,BOOLEAN,SET_UINT,SET_PTR} */
-		case OPTION_END:
-		case OPTION_GROUP:
-		case OPTION_BIT:
-		case OPTION_BOOLEAN:
-		case OPTION_INCR:
-		case OPTION_SET_UINT:
-		case OPTION_SET_PTR:
-			break;
-		}
-
-		if (pos <= USAGE_OPTS_WIDTH)
-			pad = USAGE_OPTS_WIDTH - pos;
-		else {
-			fputc('\n', stderr);
-			pad = USAGE_OPTS_WIDTH;
-		}
-		fprintf(stderr, "%*s%s\n", pad + USAGE_GAP, "", opts->help);
-	}
 	fputc('\n', stderr);
 
 	return PARSE_OPT_HELP;
@@ -559,9 +565,44 @@ void usage_with_options(const char * const *usagestr,
 }
 
 int parse_options_usage(const char * const *usagestr,
-			const struct option *opts)
+			const struct option *opts,
+			const char *optstr, bool short_opt)
 {
-	return usage_with_options_internal(usagestr, opts, 0);
+	if (!usagestr)
+		return PARSE_OPT_HELP;
+
+	fprintf(stderr, "\n usage: %s\n", *usagestr++);
+	while (*usagestr && **usagestr)
+		fprintf(stderr, "    or: %s\n", *usagestr++);
+	while (*usagestr) {
+		fprintf(stderr, "%s%s\n",
+				**usagestr ? "    " : "",
+				*usagestr);
+		usagestr++;
+	}
+	fputc('\n', stderr);
+
+	for (  ; opts->type != OPTION_END; opts++) {
+		if (short_opt) {
+			if (opts->short_name == *optstr)
+				break;
+			continue;
+		}
+
+		if (opts->long_name == NULL)
+			continue;
+
+		if (!prefixcmp(optstr, opts->long_name))
+			break;
+		if (!prefixcmp(optstr, "no-") &&
+		    !prefixcmp(optstr + 3, opts->long_name))
+			break;
+	}
+
+	if (opts->type != OPTION_END)
+		print_option_help(opts, 0);
+
+	return PARSE_OPT_HELP;
 }
 
 
diff --git a/tools/perf/util/parse-options.h b/tools/perf/util/parse-options.h
index 7bb5999940ca..b0241e28eaf7 100644
--- a/tools/perf/util/parse-options.h
+++ b/tools/perf/util/parse-options.h
@@ -158,7 +158,9 @@ struct parse_opt_ctx_t {
 };
 
 extern int parse_options_usage(const char * const *usagestr,
-			       const struct option *opts);
+			       const struct option *opts,
+			       const char *optstr,
+			       bool short_opt);
 
 extern void parse_options_start(struct parse_opt_ctx_t *ctx,
 				int argc, const char **argv, int flags);
-- 
cgit 


From 4bceffbc26fab2444742db59c6f8124c29e41369 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Fri, 1 Nov 2013 16:33:12 +0900
Subject: perf report: Postpone setting up browser after parsing options

If setup_browser() called earlier than option parsing, the actual error
message can be discarded during the terminal reset.  So move it after
setup_sorting() checks whether the sort keys are valid.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Enthusiastically-Supported-by: Ingo Molnar <mingo@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1383291195-24386-3-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-report.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 98d3891392e2..4df3161c7df2 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -905,13 +905,6 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused)
 			input_name = "perf.data";
 	}
 
-	if (strcmp(input_name, "-") != 0)
-		setup_browser(true);
-	else {
-		use_browser = 0;
-		perf_hpp__init();
-	}
-
 	file.path  = input_name;
 	file.force = report.force;
 
@@ -957,6 +950,18 @@ repeat:
 	if (setup_sorting() < 0)
 		usage_with_options(report_usage, options);
 
+	if (parent_pattern != default_parent_pattern) {
+		if (sort_dimension__add("parent") < 0)
+			goto error;
+	}
+
+	if (strcmp(input_name, "-") != 0)
+		setup_browser(true);
+	else {
+		use_browser = 0;
+		perf_hpp__init();
+	}
+
 	/*
 	 * Only in the TUI browser we are doing integrated annotation,
 	 * so don't allocate extra space that won't be used in the stdio
@@ -986,11 +991,6 @@ repeat:
 	if (symbol__init() < 0)
 		goto error;
 
-	if (parent_pattern != default_parent_pattern) {
-		if (sort_dimension__add("parent") < 0)
-			goto error;
-	}
-
 	if (argc) {
 		/*
 		 * Special case: if there's an argument left then assume that
-- 
cgit 


From 91aba0a62e24ff7a567e13e1d88deab711df6f0f Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Fri, 1 Nov 2013 16:33:13 +0900
Subject: perf report: Use parse_options_usage() for -s option failure

The -s (--sort) option was processed after normal option parsing so that
it cannot call the parse_options_usage() automatically.  Currently it
calls usage_with_options() which shows entire help messages for event
option.  Fix it by showing just -s options.

  $ perf report -s help
    Error: Unknown --sort key: `help'

   usage: perf report [<options>]

      -s, --sort <key[,key2...]>
                            sort by key(s): pid, comm, dso, symbol, ...

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Enthusiastically-Supported-by: Ingo Molnar <mingo@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1383291195-24386-4-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-report.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 4df3161c7df2..25f83d5d66fd 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -947,8 +947,10 @@ repeat:
 			sort_order = "local_weight,mem,sym,dso,symbol_daddr,dso_daddr,snoop,tlb,locked";
 	}
 
-	if (setup_sorting() < 0)
-		usage_with_options(report_usage, options);
+	if (setup_sorting() < 0) {
+		parse_options_usage(report_usage, options, "s", 1);
+		goto error;
+	}
 
 	if (parent_pattern != default_parent_pattern) {
 		if (sort_dimension__add("parent") < 0)
-- 
cgit 


From d37a92dcb45094dc02836c8a77c693c6f9916fb2 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Fri, 1 Nov 2013 16:33:14 +0900
Subject: perf top: Use parse_options_usage() for -s option failure

The -s (--sort) option was processed after normal option parsing so that
it cannot call the parse_options_usage() automatically.  Currently it
calls usage_with_options() which shows entire help messages for event
option.  Fix it by showing just -s options.

  $ perf top -s help
    Error: Unknown --sort key: `help'

   usage: perf top [<options>]

      -s, --sort <key[,key2...]>
                            sort by key(s): pid, comm, dso, symbol, ...

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Enthusiastically-Supported-by: Ingo Molnar <mingo@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1383291195-24386-5-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-top.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 21db76d71ddf..ca5ca37980fb 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1040,7 +1040,7 @@ parse_percent_limit(const struct option *opt, const char *arg,
 
 int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
 {
-	int status;
+	int status = -1;
 	char errbuf[BUFSIZ];
 	struct perf_top top = {
 		.count_filter	     = 5,
@@ -1159,8 +1159,10 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
 	if (sort_order == default_sort_order)
 		sort_order = "dso,symbol";
 
-	if (setup_sorting() < 0)
-		usage_with_options(top_usage, options);
+	if (setup_sorting() < 0) {
+		parse_options_usage(top_usage, options, "s", 1);
+		goto out_delete_evlist;
+	}
 
 	/* display thread wants entries to be collapsed in a different tree */
 	sort__need_collapse = 1;
-- 
cgit 


From cc03c54296ccbeca5363dfe8f49af42d14960f28 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Fri, 1 Nov 2013 16:33:15 +0900
Subject: perf stat: Enhance option parse error message

Print related option help messages only when it failed to process
options.  While at it, modify parse_options_usage() to skip usage part
so that it can be used for showing multiple option help messages
naturally like below:

  $ perf stat -Bx, ls
  -B option not supported with -x

   usage: perf stat [<options>] [<command>]

      -B, --big-num         print large numbers with thousands' separators
      -x, --field-separator <separator>
                            print counts with custom separator

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Enthusiastically-Supported-by: Ingo Molnar <mingo@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1383291195-24386-6-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-stat.c       | 42 ++++++++++++++++++++++++++---------------
 tools/perf/util/parse-options.c |  3 ++-
 2 files changed, 29 insertions(+), 16 deletions(-)

diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 1a9c95d270aa..0fc1c941a73c 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -1596,7 +1596,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
 		"perf stat [<options>] [<command>]",
 		NULL
 	};
-	int status = -ENOMEM, run_idx;
+	int status = -EINVAL, run_idx;
 	const char *mode;
 
 	setlocale(LC_ALL, "");
@@ -1614,12 +1614,15 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
 
 	if (output_name && output_fd) {
 		fprintf(stderr, "cannot use both --output and --log-fd\n");
-		usage_with_options(stat_usage, options);
+		parse_options_usage(stat_usage, options, "o", 1);
+		parse_options_usage(NULL, options, "log-fd", 0);
+		goto out;
 	}
 
 	if (output_fd < 0) {
 		fprintf(stderr, "argument to --log-fd must be a > 0\n");
-		usage_with_options(stat_usage, options);
+		parse_options_usage(stat_usage, options, "log-fd", 0);
+		goto out;
 	}
 
 	if (!output) {
@@ -1656,7 +1659,9 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
 		/* User explicitly passed -B? */
 		if (big_num_opt == 1) {
 			fprintf(stderr, "-B option not supported with -x\n");
-			usage_with_options(stat_usage, options);
+			parse_options_usage(stat_usage, options, "B", 1);
+			parse_options_usage(NULL, options, "x", 1);
+			goto out;
 		} else /* Nope, so disable big number formatting */
 			big_num = false;
 	} else if (big_num_opt == 0) /* User passed --no-big-num */
@@ -1666,7 +1671,9 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
 		usage_with_options(stat_usage, options);
 
 	if (run_count < 0) {
-		usage_with_options(stat_usage, options);
+		pr_err("Run count must be a positive number\n");
+		parse_options_usage(stat_usage, options, "r", 1);
+		goto out;
 	} else if (run_count == 0) {
 		forever = true;
 		run_count = 1;
@@ -1678,8 +1685,10 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
 		fprintf(stderr, "both cgroup and no-aggregation "
 			"modes only available in system-wide mode\n");
 
-		usage_with_options(stat_usage, options);
-		return -1;
+		parse_options_usage(stat_usage, options, "G", 1);
+		parse_options_usage(NULL, options, "A", 1);
+		parse_options_usage(NULL, options, "a", 1);
+		goto out;
 	}
 
 	if (add_default_attributes())
@@ -1688,25 +1697,28 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
 	perf_target__validate(&target);
 
 	if (perf_evlist__create_maps(evsel_list, &target) < 0) {
-		if (perf_target__has_task(&target))
+		if (perf_target__has_task(&target)) {
 			pr_err("Problems finding threads of monitor\n");
-		if (perf_target__has_cpu(&target))
+			parse_options_usage(stat_usage, options, "p", 1);
+			parse_options_usage(NULL, options, "t", 1);
+		} else if (perf_target__has_cpu(&target)) {
 			perror("failed to parse CPUs map");
-
-		usage_with_options(stat_usage, options);
-		return -1;
+			parse_options_usage(stat_usage, options, "C", 1);
+			parse_options_usage(NULL, options, "a", 1);
+		}
+		goto out;
 	}
 	if (interval && interval < 100) {
 		pr_err("print interval must be >= 100ms\n");
-		usage_with_options(stat_usage, options);
-		return -1;
+		parse_options_usage(stat_usage, options, "I", 1);
+		goto out_free_maps;
 	}
 
 	if (perf_evlist__alloc_stats(evsel_list, interval))
 		goto out_free_maps;
 
 	if (perf_stat_init_aggr_mode())
-		goto out;
+		goto out_free_maps;
 
 	/*
 	 * We dont want to block the signals - that would cause
diff --git a/tools/perf/util/parse-options.c b/tools/perf/util/parse-options.c
index 1caf7b9a01ee..31f404a032a9 100644
--- a/tools/perf/util/parse-options.c
+++ b/tools/perf/util/parse-options.c
@@ -569,7 +569,7 @@ int parse_options_usage(const char * const *usagestr,
 			const char *optstr, bool short_opt)
 {
 	if (!usagestr)
-		return PARSE_OPT_HELP;
+		goto opt;
 
 	fprintf(stderr, "\n usage: %s\n", *usagestr++);
 	while (*usagestr && **usagestr)
@@ -582,6 +582,7 @@ int parse_options_usage(const char * const *usagestr,
 	}
 	fputc('\n', stderr);
 
+opt:
 	for (  ; opts->type != OPTION_END; opts++) {
 		if (short_opt) {
 			if (opts->short_name == *optstr)
-- 
cgit 


From c01422a4a184a183b03fb3046af88d61828f6d56 Mon Sep 17 00:00:00 2001
From: Nariman Poushin <nariman@opensource.wolfsonmicro.com>
Date: Mon, 4 Nov 2013 12:03:44 +0000
Subject: ASoC: wm_adsp: Interpret ADSP memory region lengths as 32 bit words

Pad the ADSP word (3 bytes) to 4 bytes in the kernel and calculate
lengths based on padded ADSP words instead of treating them as bytes

Signed-off-by: Nariman Poushin <nariman@opensource.wolfsonmicro.com>
Signed-off-by: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
---
 sound/soc/codecs/wm_adsp.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index b38f3506418f..60b6b593c407 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -1062,6 +1062,7 @@ static int wm_adsp_setup_algs(struct wm_adsp *dsp)
 			if (i + 1 < algs) {
 				region->len = be32_to_cpu(adsp1_alg[i + 1].dm);
 				region->len -= be32_to_cpu(adsp1_alg[i].dm);
+				region->len *= 4;
 				wm_adsp_create_control(dsp, region);
 			} else {
 				adsp_warn(dsp, "Missing length info for region DM with ID %x\n",
@@ -1079,6 +1080,7 @@ static int wm_adsp_setup_algs(struct wm_adsp *dsp)
 			if (i + 1 < algs) {
 				region->len = be32_to_cpu(adsp1_alg[i + 1].zm);
 				region->len -= be32_to_cpu(adsp1_alg[i].zm);
+				region->len *= 4;
 				wm_adsp_create_control(dsp, region);
 			} else {
 				adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
@@ -1108,6 +1110,7 @@ static int wm_adsp_setup_algs(struct wm_adsp *dsp)
 			if (i + 1 < algs) {
 				region->len = be32_to_cpu(adsp2_alg[i + 1].xm);
 				region->len -= be32_to_cpu(adsp2_alg[i].xm);
+				region->len *= 4;
 				wm_adsp_create_control(dsp, region);
 			} else {
 				adsp_warn(dsp, "Missing length info for region XM with ID %x\n",
@@ -1125,6 +1128,7 @@ static int wm_adsp_setup_algs(struct wm_adsp *dsp)
 			if (i + 1 < algs) {
 				region->len = be32_to_cpu(adsp2_alg[i + 1].ym);
 				region->len -= be32_to_cpu(adsp2_alg[i].ym);
+				region->len *= 4;
 				wm_adsp_create_control(dsp, region);
 			} else {
 				adsp_warn(dsp, "Missing length info for region YM with ID %x\n",
@@ -1142,6 +1146,7 @@ static int wm_adsp_setup_algs(struct wm_adsp *dsp)
 			if (i + 1 < algs) {
 				region->len = be32_to_cpu(adsp2_alg[i + 1].zm);
 				region->len -= be32_to_cpu(adsp2_alg[i].zm);
+				region->len *= 4;
 				wm_adsp_create_control(dsp, region);
 			} else {
 				adsp_warn(dsp, "Missing length info for region ZM with ID %x\n",
-- 
cgit 


From 9c1fc209138a7c1ee439c7b05fde484441c84e7e Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 4 Nov 2013 09:51:20 -0200
Subject: ASoC: fsl: fsl_spdif: No need to check the return value of
 platform_get_resource()

When using devm_ioremap_resource(), we do not need to check the return value of
platform_get_resource(), so just remove it.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/fsl_spdif.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index e1bf5ef31bdd..bab95d7ad0ac 100644
--- a/sound/soc/fsl/fsl_spdif.c
+++ b/sound/soc/fsl/fsl_spdif.c
@@ -1107,11 +1107,6 @@ static int fsl_spdif_probe(struct platform_device *pdev)
 
 	/* Get the addresses and IRQ */
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "could not determine device resources\n");
-		return -ENXIO;
-	}
-
 	regs = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(regs))
 		return PTR_ERR(regs);
-- 
cgit 


From 988e8cc41efecbab53f13184940aa6317047765b Mon Sep 17 00:00:00 2001
From: Nicolin Chen <b42378@freescale.com>
Date: Mon, 4 Nov 2013 14:57:31 +0800
Subject: ASoC: Add pinctrl PM to components of active DAIs

It's quite popular that more drivers are using pinctrl PM, for example:
(Documentation/devicetree/bindings/arm/primecell.txt). Just like what
runtime PM does, it would deactivate and activate pin group depending
on whether it's being used or not.

And this pinctrl PM might be also beneficial to cpu dai drivers because
they might have actual pinctrl so as to sleep their pins and wake them
up as needed.

To achieve this goal, this patch sets pins to the default state during
resume or startup; While during suspend and shutdown, it would set pins
to the sleep state.

As pinctrl PM would return zero if there is no such pinctrl sleep state
settings, this patch would not break current ASoC subsystem directly.

[ However, there is still an exception that the patch can not handle,
that is, when cpu dai driver does not have pinctrl property but another
device has it. (The AUDMUX <-> SSI on Freescale i.MX6 series for example.
SSI as a cpu dai doesn't contain pinctrl property while AUDMUX, an Audio
Multiplexer, has it). In this case, this kind of cpu dai driver needs to
find a way to obtain the pinctrl property as its own, by moving property
from AUDMUX to SSI, or creating a pins link/dependency between these two
devices, or using a more decent way after we figure it out. ]

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/soc-core.c | 33 +++++++++++++++++++++++++++++++++
 sound/soc/soc-pcm.c  | 11 +++++++++++
 2 files changed, 44 insertions(+)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index b38e0ee622df..1a4e97773c71 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -662,6 +662,8 @@ int snd_soc_suspend(struct device *dev)
 				codec->cache_sync = 1;
 				if (codec->using_regmap)
 					regcache_mark_dirty(codec->control_data);
+				/* deactivate pins to sleep state */
+				pinctrl_pm_select_sleep_state(codec->dev);
 				break;
 			default:
 				dev_dbg(codec->dev,
@@ -679,6 +681,9 @@ int snd_soc_suspend(struct device *dev)
 
 		if (cpu_dai->driver->suspend && cpu_dai->driver->ac97_control)
 			cpu_dai->driver->suspend(cpu_dai);
+
+		/* deactivate pins to sleep state */
+		pinctrl_pm_select_sleep_state(cpu_dai->dev);
 	}
 
 	if (card->suspend_post)
@@ -807,6 +812,16 @@ int snd_soc_resume(struct device *dev)
 	if (list_empty(&card->codec_dev_list))
 		return 0;
 
+	/* activate pins from sleep state */
+	for (i = 0; i < card->num_rtd; i++) {
+		struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
+		struct snd_soc_dai *codec_dai = card->rtd[i].codec_dai;
+		if (cpu_dai->active)
+			pinctrl_pm_select_default_state(cpu_dai->dev);
+		if (codec_dai->active)
+			pinctrl_pm_select_default_state(codec_dai->dev);
+	}
+
 	/* AC97 devices might have other drivers hanging off them so
 	 * need to resume immediately.  Other drivers don't have that
 	 * problem and may take a substantial amount of time to resume
@@ -1930,6 +1945,14 @@ int snd_soc_poweroff(struct device *dev)
 
 	snd_soc_dapm_shutdown(card);
 
+	/* deactivate pins to sleep state */
+	for (i = 0; i < card->num_rtd; i++) {
+		struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
+		struct snd_soc_dai *codec_dai = card->rtd[i].codec_dai;
+		pinctrl_pm_select_sleep_state(codec_dai->dev);
+		pinctrl_pm_select_sleep_state(cpu_dai->dev);
+	}
+
 	return 0;
 }
 EXPORT_SYMBOL_GPL(snd_soc_poweroff);
@@ -3752,6 +3775,16 @@ int snd_soc_register_card(struct snd_soc_card *card)
 	if (ret != 0)
 		soc_cleanup_card_debugfs(card);
 
+	/* deactivate pins to sleep state */
+	for (i = 0; i < card->num_rtd; i++) {
+		struct snd_soc_dai *cpu_dai = card->rtd[i].cpu_dai;
+		struct snd_soc_dai *codec_dai = card->rtd[i].codec_dai;
+		if (!codec_dai->active)
+			pinctrl_pm_select_sleep_state(codec_dai->dev);
+		if (!cpu_dai->active)
+			pinctrl_pm_select_sleep_state(cpu_dai->dev);
+	}
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(snd_soc_register_card);
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 591f0f3074c5..42782c01e413 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -19,6 +19,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/delay.h>
+#include <linux/pinctrl/consumer.h>
 #include <linux/pm_runtime.h>
 #include <linux/slab.h>
 #include <linux/workqueue.h>
@@ -183,6 +184,8 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 	struct snd_soc_dai_driver *codec_dai_drv = codec_dai->driver;
 	int ret = 0;
 
+	pinctrl_pm_select_default_state(cpu_dai->dev);
+	pinctrl_pm_select_default_state(codec_dai->dev);
 	pm_runtime_get_sync(cpu_dai->dev);
 	pm_runtime_get_sync(codec_dai->dev);
 	pm_runtime_get_sync(platform->dev);
@@ -317,6 +320,10 @@ out:
 	pm_runtime_put(platform->dev);
 	pm_runtime_put(codec_dai->dev);
 	pm_runtime_put(cpu_dai->dev);
+	if (!codec_dai->active)
+		pinctrl_pm_select_sleep_state(codec_dai->dev);
+	if (!cpu_dai->active)
+		pinctrl_pm_select_sleep_state(cpu_dai->dev);
 
 	return ret;
 }
@@ -426,6 +433,10 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)
 	pm_runtime_put(platform->dev);
 	pm_runtime_put(codec_dai->dev);
 	pm_runtime_put(cpu_dai->dev);
+	if (!codec_dai->active)
+		pinctrl_pm_select_sleep_state(codec_dai->dev);
+	if (!cpu_dai->active)
+		pinctrl_pm_select_sleep_state(cpu_dai->dev);
 
 	return 0;
 }
-- 
cgit 


From f0e1bfbd2d1b0900a56c25cea35be2467a5cfc32 Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Mon, 4 Nov 2013 09:28:24 +0100
Subject: of: Add AU Optronics Corporation vendor prefix

AU Optronics is listed as AUO on the stock exchange, so use that as the
vendor prefix.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 640e86dc0ae7..516584603b4d 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -12,6 +12,7 @@ amcc	Applied Micro Circuits Corporation (APM, formally AMCC)
 apm	Applied Micro Circuits Corporation (APM)
 arm	ARM Ltd.
 atmel	Atmel Corporation
+auo	AU Optronics Corporation
 avago	Avago Technologies
 bosch	Bosch Sensortec GmbH
 brcm	Broadcom Corporation
-- 
cgit 


From bf80eb17ebce1af6023c2de72ba1954ca6b1a1f3 Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Mon, 4 Nov 2013 09:28:25 +0100
Subject: of: Add Chunghwa Picture Tubes Ltd. vendor prefix

Chunghwa Picture Tubes Ltd. isn't listed on the stock exchange, so use
the generic "chunghwa" as vendor prefix.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 516584603b4d..932e6e794cae 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -19,6 +19,7 @@ brcm	Broadcom Corporation
 cavium	Cavium, Inc.
 cdns	Cadence Design Systems Inc.
 chrp	Common Hardware Reference Platform
+chunghwa	Chunghwa Picture Tubes Ltd.
 cirrus	Cirrus Logic, Inc.
 cortina	Cortina Systems, Inc.
 dallas	Maxim Integrated Products (formerly Dallas Semiconductor)
-- 
cgit 


From b6d4eeb18a863a9613f49adf2a59db3beeaf1bca Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Mon, 4 Nov 2013 09:28:26 +0100
Subject: of: Add Panasonic Corporation vendor prefix

Use "panasonic" as the vendor prefix for the Panasonic Corporation.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 932e6e794cae..1809eae3c4c4 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -48,6 +48,7 @@ nintendo	Nintendo
 nvidia	NVIDIA
 nxp	NXP Semiconductors
 onnn	ON Semiconductor Corp.
+panasonic	Panasonic Corporation
 phytec	PHYTEC Messtechnik GmbH
 picochip	Picochip Ltd
 powervr	PowerVR (deprecated, use img)
-- 
cgit 


From edf7b938321e5a8c170044e186afdf757bc597fa Mon Sep 17 00:00:00 2001
From: "Maciej W. Rozycki" <macro@codesourcery.com>
Date: Fri, 1 Nov 2013 23:47:05 +0000
Subject: MIPS: Random whitespace clean-ups

Another whitespace clean-up, this removes tabs from between sentences in
some comments.

Signed-off-by: Maciej W. Rozycki <macro@codesourcery.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/6103/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/include/asm/addrspace.h | 4 ++--
 arch/mips/include/asm/atomic.h    | 2 +-
 arch/mips/include/asm/barrier.h   | 6 +++---
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/mips/include/asm/addrspace.h b/arch/mips/include/asm/addrspace.h
index 13d61c002e4f..3f745459fdb5 100644
--- a/arch/mips/include/asm/addrspace.h
+++ b/arch/mips/include/asm/addrspace.h
@@ -58,7 +58,7 @@
 
 /*
  * Memory segments (64bit kernel mode addresses)
- * The compatibility segments use the full 64-bit sign extended value.	Note
+ * The compatibility segments use the full 64-bit sign extended value.  Note
  * the R8000 doesn't have them so don't reference these in generic MIPS code.
  */
 #define XKUSEG			_CONST64_(0x0000000000000000)
@@ -131,7 +131,7 @@
 
 /*
  * The ultimate limited of the 64-bit MIPS architecture:  2 bits for selecting
- * the region, 3 bits for the CCA mode.	 This leaves 59 bits of which the
+ * the region, 3 bits for the CCA mode.  This leaves 59 bits of which the
  * R8000 implements most with its 48-bit physical address space.
  */
 #define TO_PHYS_MASK	_CONST64_(0x07ffffffffffffff)	/* 2^^59 - 1 */
diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h
index 08b607969a16..7eed2f261710 100644
--- a/arch/mips/include/asm/atomic.h
+++ b/arch/mips/include/asm/atomic.h
@@ -1,5 +1,5 @@
 /*
- * Atomic operations that C can't guarantee us.	 Useful for
+ * Atomic operations that C can't guarantee us.  Useful for
  * resource counting etc..
  *
  * But use these as seldom as possible since they are much more slower
diff --git a/arch/mips/include/asm/barrier.h b/arch/mips/include/asm/barrier.h
index 314ab5532019..f26d8e1bf3c3 100644
--- a/arch/mips/include/asm/barrier.h
+++ b/arch/mips/include/asm/barrier.h
@@ -18,7 +18,7 @@
  * over this barrier.  All reads preceding this primitive are guaranteed
  * to access memory (but not necessarily other CPUs' caches) before any
  * reads following this primitive that depend on the data return by
- * any of the preceding reads.	This primitive is much lighter weight than
+ * any of the preceding reads.  This primitive is much lighter weight than
  * rmb() on most CPUs, and is never heavier weight than is
  * rmb().
  *
@@ -43,7 +43,7 @@
  * </programlisting>
  *
  * because the read of "*q" depends on the read of "p" and these
- * two reads are separated by a read_barrier_depends().	 However,
+ * two reads are separated by a read_barrier_depends().  However,
  * the following code, with the same initial values for "a" and "b":
  *
  * <programlisting>
@@ -57,7 +57,7 @@
  * </programlisting>
  *
  * does not enforce ordering, since there is no data dependency between
- * the read of "a" and the read of "b".	 Therefore, on some CPUs, such
+ * the read of "a" and the read of "b".  Therefore, on some CPUs, such
  * as Alpha, "y" could be set to 3 and "x" to 0.  Use rmb()
  * in cases like this where there are no data dependencies.
  */
-- 
cgit 


From 4eeca499be4ff4216b745e35ae8c8bffa6445eac Mon Sep 17 00:00:00 2001
From: James Ralston <james.d.ralston@intel.com>
Date: Mon, 4 Nov 2013 09:27:45 -0800
Subject: ALSA: hda - Add Device IDs for Intel Wildcat Point-LP PCH

This patch adds the HD Audio Device IDs for the Intel Wildcat Point-LP PCH.

Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_intel.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index a0a06f79daa3..66f7e1e3ec4b 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -169,6 +169,7 @@ MODULE_SUPPORTED_DEVICE("{{Intel, ICH6},"
 			 "{Intel, PPT},"
 			 "{Intel, LPT},"
 			 "{Intel, LPT_LP},"
+			 "{Intel, WPT_LP},"
 			 "{Intel, HPT},"
 			 "{Intel, PBG},"
 			 "{Intel, SCH},"
@@ -3986,6 +3987,9 @@ static DEFINE_PCI_DEVICE_TABLE(azx_ids) = {
 	/* Lynx Point-LP */
 	{ PCI_DEVICE(0x8086, 0x9c21),
 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
+	/* Wildcat Point-LP */
+	{ PCI_DEVICE(0x8086, 0x9ca0),
+	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
 	/* Haswell */
 	{ PCI_DEVICE(0x8086, 0x0a0c),
 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH |
-- 
cgit 


From 1b372ca52a02cc97520c13d79bdfb0a7ff81b772 Mon Sep 17 00:00:00 2001
From: Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@hitachi.com>
Date: Fri, 1 Nov 2013 17:53:53 -0400
Subject: tools lib traceevent: Add support for extracting trace_clock in
 report

If trace-cmd extracts trace_clock, trace-cmd reads trace_clock data from
the trace.dat and switches outputting format of timestamp for each
trace_clock.

Signed-off-by: Yoshihiro YUNOMAE <yoshihiro.yunomae.ez@hitachi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20130424231305.14877.86147.stgit@yunodevel
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.c | 50 +++++++++++++++++++++++++++++---------
 tools/lib/traceevent/event-parse.h |  6 ++++-
 2 files changed, 44 insertions(+), 12 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index d1c2a6a4cd32..deedff9d06af 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -305,6 +305,11 @@ int pevent_register_comm(struct pevent *pevent, const char *comm, int pid)
 	return 0;
 }
 
+void pevent_register_trace_clock(struct pevent *pevent, char *trace_clock)
+{
+	pevent->trace_clock = trace_clock;
+}
+
 struct func_map {
 	unsigned long long		addr;
 	char				*func;
@@ -4443,8 +4448,21 @@ void pevent_event_info(struct trace_seq *s, struct event_format *event,
 	trace_seq_terminate(s);
 }
 
+static bool is_timestamp_in_us(char *trace_clock, bool use_trace_clock)
+{
+	if (!use_trace_clock)
+		return true;
+
+	if (!strcmp(trace_clock, "local") || !strcmp(trace_clock, "global")
+	    || !strcmp(trace_clock, "uptime") || !strcmp(trace_clock, "perf"))
+		return true;
+
+	/* trace_clock is setting in tsc or counter mode */
+	return false;
+}
+
 void pevent_print_event(struct pevent *pevent, struct trace_seq *s,
-			struct pevent_record *record)
+			struct pevent_record *record, bool use_trace_clock)
 {
 	static const char *spaces = "                    "; /* 20 spaces */
 	struct event_format *event;
@@ -4457,9 +4475,14 @@ void pevent_print_event(struct pevent *pevent, struct trace_seq *s,
 	int pid;
 	int len;
 	int p;
+	bool use_usec_format;
 
-	secs = record->ts / NSECS_PER_SEC;
-	nsecs = record->ts - secs * NSECS_PER_SEC;
+	use_usec_format = is_timestamp_in_us(pevent->trace_clock,
+							use_trace_clock);
+	if (use_usec_format) {
+		secs = record->ts / NSECS_PER_SEC;
+		nsecs = record->ts - secs * NSECS_PER_SEC;
+	}
 
 	if (record->size < 0) {
 		do_warning("ug! negative record size %d", record->size);
@@ -4484,15 +4507,20 @@ void pevent_print_event(struct pevent *pevent, struct trace_seq *s,
 	} else
 		trace_seq_printf(s, "%16s-%-5d [%03d]", comm, pid, record->cpu);
 
-	if (pevent->flags & PEVENT_NSEC_OUTPUT) {
-		usecs = nsecs;
-		p = 9;
-	} else {
-		usecs = (nsecs + 500) / NSECS_PER_USEC;
-		p = 6;
-	}
+	if (use_usec_format) {
+		if (pevent->flags & PEVENT_NSEC_OUTPUT) {
+			usecs = nsecs;
+			p = 9;
+		} else {
+			usecs = (nsecs + 500) / NSECS_PER_USEC;
+			p = 6;
+		}
 
-	trace_seq_printf(s, " %5lu.%0*lu: %s: ", secs, p, usecs, event->name);
+		trace_seq_printf(s, " %5lu.%0*lu: %s: ",
+					secs, p, usecs, event->name);
+	} else
+		trace_seq_printf(s, " %12llu: %s: ",
+					record->ts, event->name);
 
 	/* Space out the event names evenly. */
 	len = strlen(event->name);
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index c37b2026d04a..7503edf5ac6a 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -20,6 +20,7 @@
 #ifndef _PARSE_EVENTS_H
 #define _PARSE_EVENTS_H
 
+#include <stdbool.h>
 #include <stdarg.h>
 #include <regex.h>
 
@@ -450,6 +451,8 @@ struct pevent {
 
 	/* cache */
 	struct event_format *last_event;
+
+	char *trace_clock;
 };
 
 static inline void pevent_set_flag(struct pevent *pevent, int flag)
@@ -527,6 +530,7 @@ enum trace_flag_type {
 };
 
 int pevent_register_comm(struct pevent *pevent, const char *comm, int pid);
+void pevent_register_trace_clock(struct pevent *pevent, char *trace_clock);
 int pevent_register_function(struct pevent *pevent, char *name,
 			     unsigned long long addr, char *mod);
 int pevent_register_print_string(struct pevent *pevent, char *fmt,
@@ -534,7 +538,7 @@ int pevent_register_print_string(struct pevent *pevent, char *fmt,
 int pevent_pid_is_registered(struct pevent *pevent, int pid);
 
 void pevent_print_event(struct pevent *pevent, struct trace_seq *s,
-			struct pevent_record *record);
+			struct pevent_record *record, bool use_trace_clock);
 
 int pevent_parse_header_page(struct pevent *pevent, char *buf, unsigned long size,
 			     int long_size);
-- 
cgit 


From 18900af8292180151c82f0762506fa0740aa54a5 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Fri, 1 Nov 2013 17:53:54 -0400
Subject: tools lib traceevent: Update printk formats when entered

Instead of cropping off the '"' and '\n"' from a printk format every
time it is referenced, do it when it's added. This makes it easier to
reference a printk_map and should speed things up a little.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20131101215500.495619312@goodmis.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.c | 29 ++++++++++++++---------------
 tools/lib/traceevent/event-parse.h |  2 +-
 2 files changed, 15 insertions(+), 16 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index deedff9d06af..856b79105abc 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -604,10 +604,11 @@ find_printk(struct pevent *pevent, unsigned long long addr)
  * This registers a string by the address it was stored in the kernel.
  * The @fmt passed in is duplicated.
  */
-int pevent_register_print_string(struct pevent *pevent, char *fmt,
+int pevent_register_print_string(struct pevent *pevent, const char *fmt,
 				 unsigned long long addr)
 {
 	struct printk_list *item = malloc(sizeof(*item));
+	char *p;
 
 	if (!item)
 		return -1;
@@ -615,10 +616,21 @@ int pevent_register_print_string(struct pevent *pevent, char *fmt,
 	item->next = pevent->printklist;
 	item->addr = addr;
 
+	/* Strip off quotes and '\n' from the end */
+	if (fmt[0] == '"')
+		fmt++;
 	item->printk = strdup(fmt);
 	if (!item->printk)
 		goto out_free;
 
+	p = item->printk + strlen(item->printk) - 1;
+	if (*p == '"')
+		*p = 0;
+
+	p -= 2;
+	if (strcmp(p, "\\n") == 0)
+		*p = 0;
+
 	pevent->printklist = item;
 	pevent->printk_count++;
 
@@ -3887,7 +3899,6 @@ get_bprint_format(void *data, int size __maybe_unused,
 	struct format_field *field;
 	struct printk_map *printk;
 	char *format;
-	char *p;
 
 	field = pevent->bprint_fmt_field;
 
@@ -3909,20 +3920,8 @@ get_bprint_format(void *data, int size __maybe_unused,
 		return format;
 	}
 
-	p = printk->printk;
-	/* Remove any quotes. */
-	if (*p == '"')
-		p++;
-	if (asprintf(&format, "%s : %s", "%pf", p) < 0)
+	if (asprintf(&format, "%s : %s", "%pf", printk->printk) < 0)
 		return NULL;
-	/* remove ending quotes and new line since we will add one too */
-	p = format + strlen(format) - 1;
-	if (*p == '"')
-		*p = 0;
-
-	p -= 2;
-	if (strcmp(p, "\\n") == 0)
-		*p = 0;
 
 	return format;
 }
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 7503edf5ac6a..9ab6367f2fe9 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -533,7 +533,7 @@ int pevent_register_comm(struct pevent *pevent, const char *comm, int pid);
 void pevent_register_trace_clock(struct pevent *pevent, char *trace_clock);
 int pevent_register_function(struct pevent *pevent, char *name,
 			     unsigned long long addr, char *mod);
-int pevent_register_print_string(struct pevent *pevent, char *fmt,
+int pevent_register_print_string(struct pevent *pevent, const char *fmt,
 				 unsigned long long addr);
 int pevent_pid_is_registered(struct pevent *pevent, int pid);
 
-- 
cgit 


From 0970b5f438261216afcd0ccaa2fcfffc83df7ca2 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Fri, 1 Nov 2013 17:53:55 -0400
Subject: tools lib traceevent: If %s is a pointer, check printk formats

If the format string of TP_printk() contains a %s, and the argument is
not a string, check if the argument is a pointer that might match the
printk_formats that were stored.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20131101215500.698924777@goodmis.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 856b79105abc..013c8d3db806 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -3505,6 +3505,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 	struct pevent *pevent = event->pevent;
 	struct print_flag_sym *flag;
 	struct format_field *field;
+	struct printk_map *printk;
 	unsigned long long val, fval;
 	unsigned long addr;
 	char *str;
@@ -3540,7 +3541,12 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 		if (!(field->flags & FIELD_IS_ARRAY) &&
 		    field->size == pevent->long_size) {
 			addr = *(unsigned long *)(data + field->offset);
-			trace_seq_printf(s, "%lx", addr);
+			/* Check if it matches a print format */
+			printk = find_printk(pevent, addr);
+			if (printk)
+				trace_seq_puts(s, printk->printk);
+			else
+				trace_seq_printf(s, "%lx", addr);
 			break;
 		}
 		str = malloc(len + 1);
-- 
cgit 


From b30f75eba27a9ab0704cbc501e9be3b025ce56fe Mon Sep 17 00:00:00 2001
From: Howard Cochran <hcochran@lexmark.com>
Date: Fri, 1 Nov 2013 17:53:56 -0400
Subject: tools lib traceevent: Handle
 __print_hex(__get_dynamic_array(fieldname), len)

The kernel has a few events with a format similar to this excerpt:
        field:unsigned int len;     offset:12;      size:4; signed:0;
        field:__data_loc unsigned char[] data_array;  offset:16;      size:4; signed:0;
print fmt: "%s", __print_hex(__get_dynamic_array(data_array), REC->len)

trace-cmd could already parse that arg correctly, but print_str_arg()
was unable to handle the first parameter being a dynamic array. (It
just printed a "field not found" warning).

Teach print_str_arg's PRINT_HEX case to handle the nested
PRINT_DYNAMIC_ARRAY correctly. The output now matches the kernel's own
formatting for this case.

Signed-off-by: Howard Cochran <hcochran@lexmark.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1381503349-12271-1-git-send-email-hcochran@lexmark.com
[ Removed "polish compare", we don't do that here ]
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.c | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 013c8d3db806..0a1ffe07de3f 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -3588,15 +3588,23 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
 		}
 		break;
 	case PRINT_HEX:
-		field = arg->hex.field->field.field;
-		if (!field) {
-			str = arg->hex.field->field.name;
-			field = pevent_find_any_field(event, str);
-			if (!field)
-				goto out_warning_field;
-			arg->hex.field->field.field = field;
+		if (arg->hex.field->type == PRINT_DYNAMIC_ARRAY) {
+			unsigned long offset;
+			offset = pevent_read_number(pevent,
+				data + arg->hex.field->dynarray.field->offset,
+				arg->hex.field->dynarray.field->size);
+			hex = data + (offset & 0xffff);
+		} else {
+			field = arg->hex.field->field.field;
+			if (!field) {
+				str = arg->hex.field->field.name;
+				field = pevent_find_any_field(event, str);
+				if (!field)
+					goto out_warning_field;
+				arg->hex.field->field.field = field;
+			}
+			hex = data + field->offset;
 		}
-		hex = data + field->offset;
 		len = eval_num_arg(data, size, event, arg->hex.size);
 		for (i = 0; i < len; i++) {
 			if (i)
-- 
cgit 


From 0883d9d730fc294c3d90ebd190b94e5782ead316 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Fri, 1 Nov 2013 17:53:57 -0400
Subject: tools lib traceevent: Have bprintk output the same as the kernel does

The trace_bprintk() in the kernel looks like:

 ring_buffer_producer_thread: Missed:   0
 ring_buffer_producer_thread: Hit:      62174350
 ring_buffer_producer_thread: Entries per millisec: 6296
 ring_buffer_producer_thread: 158 ns per entry
 ring_buffer_producer_thread: Sleeping for 10 secs
 ring_buffer_producer_thread: Starting ring buffer hammer
 ring_buffer_producer_thread: End ring buffer hammer

But the current output looks like this:

 ring_buffer_producer_thread : Time:     9407018 (usecs)
 ring_buffer_producer_thread : Overruns: 43285485
 ring_buffer_producer_thread : Read:     4405365  (by events)
 ring_buffer_producer_thread : Entries:  0
 ring_buffer_producer_thread : Total:    47690850
 ring_buffer_producer_thread : Missed:   0
 ring_buffer_producer_thread : Hit:      47690850

Remove the space between the function and the colon.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20131101215501.272654481@goodmis.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 0a1ffe07de3f..e1c743c52834 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -3802,8 +3802,8 @@ static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struc
 	if (asprintf(&arg->atom.atom, "%lld", ip) < 0)
 		goto out_free;
 
-	/* skip the first "%pf : " */
-	for (ptr = fmt + 6, bptr = data + field->offset;
+	/* skip the first "%pf: " */
+	for (ptr = fmt + 5, bptr = data + field->offset;
 	     bptr < data + size && *ptr; ptr++) {
 		int ls = 0;
 
@@ -3929,12 +3929,12 @@ get_bprint_format(void *data, int size __maybe_unused,
 
 	printk = find_printk(pevent, addr);
 	if (!printk) {
-		if (asprintf(&format, "%%pf : (NO FORMAT FOUND at %llx)\n", addr) < 0)
+		if (asprintf(&format, "%%pf: (NO FORMAT FOUND at %llx)\n", addr) < 0)
 			return NULL;
 		return format;
 	}
 
-	if (asprintf(&format, "%s : %s", "%pf", printk->printk) < 0)
+	if (asprintf(&format, "%s: %s", "%pf", printk->printk) < 0)
 		return NULL;
 
 	return format;
-- 
cgit 


From 5efb9fbd5f1bfe4435bd0a3ea5f0e187875509c2 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Fri, 1 Nov 2013 17:53:58 -0400
Subject: tools lib traceevent: Check for spaces in character array

Currently when using the raw format for fields, when looking at a
character array, to determine if it is a string or not, we make sure all
characters are "isprint()". If not, then we consider it a numeric array,
and print the hex numbers of the characters instead.

But it seems that '\n' fails the isprint() check! Add isspace() to the
check as well, such that if all characters pass isprint() or isspace()
it will assume the character array is a string.

Reported-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Xenia Ragiadakou <burzalodowa@gmail.com>
Link: http://lkml.kernel.org/r/20131101215501.465091682@goodmis.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index e1c743c52834..85cbbddb6880 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -3981,7 +3981,7 @@ static int is_printable_array(char *p, unsigned int len)
 	unsigned int i;
 
 	for (i = 0; i < len && p[i]; i++)
-		if (!isprint(p[i]))
+		if (!isprint(p[i]) && !isspace(p[i]))
 		    return 0;
 	return 1;
 }
-- 
cgit 


From c6c2b960b7a4105f096499fba3df65d6c0272a20 Mon Sep 17 00:00:00 2001
From: Steven Rostedt <srostedt@redhat.com>
Date: Fri, 1 Nov 2013 17:53:59 -0400
Subject: tools lib traceevent: Add flags NOHANDLE and PRINTRAW to individual
 events

Add the flags EVENT_FL_NOHANDLE and EVENT_FL_PRINTRAW to the event flags
to have the event either ignore the register handler or to ignore the
handler and also print the raw format respectively.

This allows a tool to force a raw format or non handle for an event.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20131101215501.655258742@goodmis.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.c | 4 ++--
 tools/lib/traceevent/event-parse.h | 2 ++
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 85cbbddb6880..fc6f35f591f6 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -4446,11 +4446,11 @@ void pevent_event_info(struct trace_seq *s, struct event_format *event,
 {
 	int print_pretty = 1;
 
-	if (event->pevent->print_raw)
+	if (event->pevent->print_raw || (event->flags & EVENT_FL_PRINTRAW))
 		print_event_fields(s, record->data, record->size, event);
 	else {
 
-		if (event->handler)
+		if (event->handler && !(event->flags & EVENT_FL_NOHANDLE))
 			print_pretty = event->handler(s, record, event,
 						      event->context);
 
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 9ab6367f2fe9..dc8539ee9485 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -308,6 +308,8 @@ enum {
 	EVENT_FL_ISBPRINT	= 0x04,
 	EVENT_FL_ISFUNCENT	= 0x10,
 	EVENT_FL_ISFUNCRET	= 0x20,
+	EVENT_FL_NOHANDLE	= 0x40,
+	EVENT_FL_PRINTRAW	= 0x80,
 
 	EVENT_FL_FAILED		= 0x80000000
 };
-- 
cgit 


From 6d862b8c14ba539c7c87ffc77f2e1d6dc9630c4d Mon Sep 17 00:00:00 2001
From: Steven Rostedt <srostedt@redhat.com>
Date: Fri, 1 Nov 2013 17:54:00 -0400
Subject: tools lib traceevent: Add pevent_print_func_field() helper function

Add the pevent_print_func_field() that will look up a field that is
expected to be a function pointer, and it will print the function name
and offset of the address given by the field.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20131101215501.869542711@goodmis.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.c | 42 ++++++++++++++++++++++++++++++++++++++
 tools/lib/traceevent/event-parse.h |  4 ++++
 2 files changed, 46 insertions(+)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index fc6f35f591f6..8f450adaa9c2 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -5367,6 +5367,48 @@ int pevent_print_num_field(struct trace_seq *s, const char *fmt,
 	return -1;
 }
 
+/**
+ * pevent_print_func_field - print a field and a format for function pointers
+ * @s: The seq to print to
+ * @fmt: The printf format to print the field with.
+ * @event: the event that the field is for
+ * @name: The name of the field
+ * @record: The record with the field name.
+ * @err: print default error if failed.
+ *
+ * Returns: 0 on success, -1 field not found, or 1 if buffer is full.
+ */
+int pevent_print_func_field(struct trace_seq *s, const char *fmt,
+			    struct event_format *event, const char *name,
+			    struct pevent_record *record, int err)
+{
+	struct format_field *field = pevent_find_field(event, name);
+	struct pevent *pevent = event->pevent;
+	unsigned long long val;
+	struct func_map *func;
+	char tmp[128];
+
+	if (!field)
+		goto failed;
+
+	if (pevent_read_number_field(field, record->data, &val))
+		goto failed;
+
+	func = find_func(pevent, val);
+
+	if (func)
+		snprintf(tmp, 128, "%s/0x%llx", func->func, func->addr - val);
+	else
+		sprintf(tmp, "0x%08llx", val);
+
+	return trace_seq_printf(s, fmt, tmp);
+
+ failed:
+	if (err)
+		trace_seq_printf(s, "CAN'T FIND FIELD \"%s\"", name);
+	return -1;
+}
+
 static void free_func_handle(struct pevent_function_handler *func)
 {
 	struct pevent_func_params *params;
diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index dc8539ee9485..8d73d2594f65 100644
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -569,6 +569,10 @@ int pevent_print_num_field(struct trace_seq *s, const char *fmt,
 			   struct event_format *event, const char *name,
 			   struct pevent_record *record, int err);
 
+int pevent_print_func_field(struct trace_seq *s, const char *fmt,
+			   struct event_format *event, const char *name,
+			   struct pevent_record *record, int err);
+
 int pevent_register_event_handler(struct pevent *pevent, int id,
 				  const char *sys_name, const char *event_name,
 				  pevent_event_handler_func func, void *context);
-- 
cgit 


From 5e90169c5a02da69a1ef721bea7a823e9e48fcb6 Mon Sep 17 00:00:00 2001
From: James Ralston <james.d.ralston@intel.com>
Date: Mon, 4 Nov 2013 09:31:20 -0800
Subject: mfd: lpc_ich: Add Device IDs for Intel Wildcat Point-LP PCH

This patch adds the TCO Watchdog Device IDs for the
Intel Wildcat Point-LP PCH.

Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---
 drivers/mfd/lpc_ich.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c
index 316af07ede3f..da1c6566d93d 100644
--- a/drivers/mfd/lpc_ich.c
+++ b/drivers/mfd/lpc_ich.c
@@ -53,6 +53,7 @@
  *	document number TBD : Wellsburg
  *	document number TBD : Avoton SoC
  *	document number TBD : Coleto Creek
+ *	document number TBD : Wildcat Point-LP
  */
 
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
@@ -211,6 +212,7 @@ enum lpc_chipsets {
 	LPC_WBG,	/* Wellsburg */
 	LPC_AVN,	/* Avoton SoC */
 	LPC_COLETO,	/* Coleto Creek */
+	LPC_WPT_LP,	/* Wildcat Point-LP */
 };
 
 static struct lpc_ich_info lpc_chipset_info[] = {
@@ -503,6 +505,10 @@ static struct lpc_ich_info lpc_chipset_info[] = {
 		.name = "Coleto Creek",
 		.iTCO_version = 2,
 	},
+	[LPC_WPT_LP] = {
+		.name = "Lynx Point_LP",
+		.iTCO_version = 2,
+	},
 };
 
 /*
@@ -721,6 +727,13 @@ static DEFINE_PCI_DEVICE_TABLE(lpc_ich_ids) = {
 	{ PCI_VDEVICE(INTEL, 0x1f3a), LPC_AVN},
 	{ PCI_VDEVICE(INTEL, 0x1f3b), LPC_AVN},
 	{ PCI_VDEVICE(INTEL, 0x2390), LPC_COLETO},
+	{ PCI_VDEVICE(INTEL, 0x9cc1), LPC_WPT_LP},
+	{ PCI_VDEVICE(INTEL, 0x9cc2), LPC_WPT_LP},
+	{ PCI_VDEVICE(INTEL, 0x9cc3), LPC_WPT_LP},
+	{ PCI_VDEVICE(INTEL, 0x9cc5), LPC_WPT_LP},
+	{ PCI_VDEVICE(INTEL, 0x9cc6), LPC_WPT_LP},
+	{ PCI_VDEVICE(INTEL, 0x9cc7), LPC_WPT_LP},
+	{ PCI_VDEVICE(INTEL, 0x9cc9), LPC_WPT_LP},
 	{ 0, },			/* End of list */
 };
 MODULE_DEVICE_TABLE(pci, lpc_ich_ids);
-- 
cgit 


From 3c620626c0cd4cfca856d70a846398275b48a768 Mon Sep 17 00:00:00 2001
From: Mark Salter <msalter@redhat.com>
Date: Mon, 4 Nov 2013 16:38:47 +0000
Subject: arm64: use generic RW_DATA_SECTION macro in linker script

The .data section in the arm64 linker script currently lacks a
definition for page-aligned data. This leads to a .page_aligned
section being placed between the end of data and start of bss.
This patch corrects that by using the generic RW_DATA_SECTION
macro which includes support for page-aligned data.

Signed-off-by: Mark Salter <msalter@redhat.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kernel/vmlinux.lds.S | 31 +++++++------------------------
 1 file changed, 7 insertions(+), 24 deletions(-)

diff --git a/arch/arm64/kernel/vmlinux.lds.S b/arch/arm64/kernel/vmlinux.lds.S
index 991ffddf49df..5161ad992091 100644
--- a/arch/arm64/kernel/vmlinux.lds.S
+++ b/arch/arm64/kernel/vmlinux.lds.S
@@ -96,30 +96,13 @@ SECTIONS
 	PERCPU_SECTION(64)
 
 	__init_end = .;
-	. = ALIGN(THREAD_SIZE);
-	__data_loc = .;
-
-	.data : AT(__data_loc) {
-		_data = .;		/* address in memory */
-		_sdata = .;
-
-		/*
-		 * first, the init task union, aligned
-		 * to an 8192 byte boundary.
-		 */
-		INIT_TASK_DATA(THREAD_SIZE)
-		NOSAVE_DATA
-		CACHELINE_ALIGNED_DATA(64)
-		READ_MOSTLY_DATA(64)
-
-		/*
-		 * and the usual data section
-		 */
-		DATA_DATA
-		CONSTRUCTORS
-
-		_edata = .;
-	}
+
+	. = ALIGN(PAGE_SIZE);
+	_data = .;
+	__data_loc = _data - LOAD_OFFSET;
+	_sdata = .;
+	RW_DATA_SECTION(64, PAGE_SIZE, THREAD_SIZE)
+	_edata = .;
 	_edata_loc = __data_loc + SIZEOF(.data);
 
 	BSS_SECTION(0, 0, 0)
-- 
cgit 


From 7ade67b5984d0a0434462fda733ab5138c63aae1 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <Marc.Zyngier@arm.com>
Date: Mon, 4 Nov 2013 16:55:22 +0000
Subject: arm64: move enabling of GIC before CPUs are set online

Commit 53ae3acd (arm64: Only enable local interrupts after the CPU
is marked online) moved the enabling of the GIC after the CPUs are
marked online.

This has some interesting effect:
[...]
[<ffffffc0002eefd8>] gic_raise_softirq+0xf8/0x160
[<ffffffc000088f58>] smp_send_reschedule+0x38/0x40
[<ffffffc0000c8728>] resched_task+0x84/0xc0
[<ffffffc0000c8cdc>] check_preempt_curr+0x58/0x98
[<ffffffc0000c8d38>] ttwu_do_wakeup+0x1c/0xf4
[<ffffffc0000c8f90>] ttwu_do_activate.constprop.84+0x64/0x70
[<ffffffc0000cad30>] try_to_wake_up+0x1d4/0x2b4
[<ffffffc0000cae6c>] default_wake_function+0x10/0x18
[<ffffffc0000c5ca4>] __wake_up_common+0x60/0xa0
[<ffffffc0000c7784>] complete+0x48/0x64
[<ffffffc000088bec>] secondary_start_kernel+0xe8/0x110
[...]

Here, we end-up calling gic_raise_softirq without having initialized
the interrupt controller for this CPU. While this goes unnoticed
with GICv2 (the distributor is always accessible), it explodes with
GICv3.

The fix is to move the call to notify_cpu_starting before we set
the secondary CPU online.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kernel/smp.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 5b4ddbd653c3..3abb9e797dd4 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -145,6 +145,11 @@ asmlinkage void secondary_start_kernel(void)
 	if (cpu_ops[cpu]->cpu_postboot)
 		cpu_ops[cpu]->cpu_postboot();
 
+	/*
+	 * Enable GIC and timers.
+	 */
+	notify_cpu_starting(cpu);
+
 	/*
 	 * OK, now it's safe to let the boot CPU continue.  Wait for
 	 * the CPU migration code to notice that the CPU is online
@@ -153,11 +158,6 @@ asmlinkage void secondary_start_kernel(void)
 	set_cpu_online(cpu, true);
 	complete(&cpu_running);
 
-	/*
-	 * Enable GIC and timers.
-	 */
-	notify_cpu_starting(cpu);
-
 	local_irq_enable();
 	local_fiq_enable();
 
-- 
cgit 


From 273203699f82667296e1f14344c5a5a6c4600470 Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Tue, 29 Oct 2013 22:11:44 +1100
Subject: xfs: xfs_remove deadlocks due to inverted AGF vs AGI lock ordering

Removing an inode from the namespace involves removing the directory
entry and dropping the link count on the inode. Removing the
directory entry can result in locking an AGF (directory blocks were
freed) and removing a link count can result in placing the inode on
an unlinked list which results in locking an AGI.

The big problem here is that we have an ordering constraint on AGF
and AGI locking - inode allocation locks the AGI, then can allocate
a new extent for new inodes, locking the AGF after the AGI.
Similarly, freeing the inode removes the inode from the unlinked
list, requiring that we lock the AGI first, and then freeing the
inode can result in an inode chunk being freed and hence freeing
disk space requiring that we lock an AGF.

Hence the ordering that is imposed by other parts of the code is AGI
before AGF. This means we cannot remove the directory entry before
we drop the inode reference count and put it on the unlinked list as
this results in a lock order of AGF then AGI, and this can deadlock
against inode allocation and freeing. Therefore we must drop the
link counts before we remove the directory entry.

This is still safe from a transactional point of view - it is not
until we get to xfs_bmap_finish() that we have the possibility of
multiple transactions in this operation. Hence as long as we remove
the directory entry and drop the link count in the first transaction
of the remove operation, there are no transactional constraints on
the ordering here.

Change the ordering of the operations in the xfs_remove() function
to align the ordering of AGI and AGF locking to match that of the
rest of the code.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_inode.c | 72 +++++++++++++++++++++++++++++++++---------------------
 1 file changed, 44 insertions(+), 28 deletions(-)

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 326b94dbe159..001aa893ed59 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -2404,6 +2404,33 @@ xfs_iunpin_wait(
 		__xfs_iunpin_wait(ip);
 }
 
+/*
+ * Removing an inode from the namespace involves removing the directory entry
+ * and dropping the link count on the inode. Removing the directory entry can
+ * result in locking an AGF (directory blocks were freed) and removing a link
+ * count can result in placing the inode on an unlinked list which results in
+ * locking an AGI.
+ *
+ * The big problem here is that we have an ordering constraint on AGF and AGI
+ * locking - inode allocation locks the AGI, then can allocate a new extent for
+ * new inodes, locking the AGF after the AGI. Similarly, freeing the inode
+ * removes the inode from the unlinked list, requiring that we lock the AGI
+ * first, and then freeing the inode can result in an inode chunk being freed
+ * and hence freeing disk space requiring that we lock an AGF.
+ *
+ * Hence the ordering that is imposed by other parts of the code is AGI before
+ * AGF. This means we cannot remove the directory entry before we drop the inode
+ * reference count and put it on the unlinked list as this results in a lock
+ * order of AGF then AGI, and this can deadlock against inode allocation and
+ * freeing. Therefore we must drop the link counts before we remove the
+ * directory entry.
+ *
+ * This is still safe from a transactional point of view - it is not until we
+ * get to xfs_bmap_finish() that we have the possibility of multiple
+ * transactions in this operation. Hence as long as we remove the directory
+ * entry and drop the link count in the first transaction of the remove
+ * operation, there are no transactional constraints on the ordering here.
+ */
 int
 xfs_remove(
 	xfs_inode_t             *dp,
@@ -2473,6 +2500,7 @@ xfs_remove(
 	/*
 	 * If we're removing a directory perform some additional validation.
 	 */
+	cancel_flags |= XFS_TRANS_ABORT;
 	if (is_dir) {
 		ASSERT(ip->i_d.di_nlink >= 2);
 		if (ip->i_d.di_nlink != 2) {
@@ -2483,31 +2511,16 @@ xfs_remove(
 			error = XFS_ERROR(ENOTEMPTY);
 			goto out_trans_cancel;
 		}
-	}
 
-	xfs_bmap_init(&free_list, &first_block);
-	error = xfs_dir_removename(tp, dp, name, ip->i_ino,
-					&first_block, &free_list, resblks);
-	if (error) {
-		ASSERT(error != ENOENT);
-		goto out_bmap_cancel;
-	}
-	xfs_trans_ichgtime(tp, dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
-
-	if (is_dir) {
-		/*
-		 * Drop the link from ip's "..".
-		 */
+		/* Drop the link from ip's "..".  */
 		error = xfs_droplink(tp, dp);
 		if (error)
-			goto out_bmap_cancel;
+			goto out_trans_cancel;
 
-		/*
-		 * Drop the "." link from ip to self.
-		 */
+		/* Drop the "." link from ip to self.  */
 		error = xfs_droplink(tp, ip);
 		if (error)
-			goto out_bmap_cancel;
+			goto out_trans_cancel;
 	} else {
 		/*
 		 * When removing a non-directory we need to log the parent
@@ -2516,20 +2529,24 @@ xfs_remove(
 		 */
 		xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE);
 	}
+	xfs_trans_ichgtime(tp, dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
 
-	/*
-	 * Drop the link from dp to ip.
-	 */
+	/* Drop the link from dp to ip. */
 	error = xfs_droplink(tp, ip);
 	if (error)
-		goto out_bmap_cancel;
+		goto out_trans_cancel;
 
-	/*
-	 * Determine if this is the last link while
-	 * we are in the transaction.
-	 */
+	/* Determine if this is the last link while the inode is locked */
 	link_zero = (ip->i_d.di_nlink == 0);
 
+	xfs_bmap_init(&free_list, &first_block);
+	error = xfs_dir_removename(tp, dp, name, ip->i_ino,
+					&first_block, &free_list, resblks);
+	if (error) {
+		ASSERT(error != ENOENT);
+		goto out_bmap_cancel;
+	}
+
 	/*
 	 * If this is a synchronous mount, make sure that the
 	 * remove transaction goes to disk before returning to
@@ -2559,7 +2576,6 @@ xfs_remove(
 
  out_bmap_cancel:
 	xfs_bmap_cancel(&free_list);
-	cancel_flags |= XFS_TRANS_ABORT;
  out_trans_cancel:
 	xfs_trans_cancel(tp, cancel_flags);
  std_return:
-- 
cgit 


From 24eff328f65c8ef352c90b6adb7c2f39eb94205d Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 4 Nov 2013 18:21:08 +0100
Subject: ALSA: hda - Enable SPDIF for Acer TravelMate 6293

BIOS on Acer TravelMate 6293 doesn't set up the SPDIF output pin
correctly as default, so enable it via a fixup entry.

Reported-and-tested-by: Hagen Heiduck <heiduck.suse@fmail.postpro.net>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 2d7c86d81196..01bf812455a2 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -2386,6 +2386,7 @@ static const struct hda_verb alc268_beep_init_verbs[] = {
 enum {
 	ALC268_FIXUP_INV_DMIC,
 	ALC268_FIXUP_HP_EAPD,
+	ALC268_FIXUP_SPDIF,
 };
 
 static const struct hda_fixup alc268_fixups[] = {
@@ -2400,6 +2401,13 @@ static const struct hda_fixup alc268_fixups[] = {
 			{}
 		}
 	},
+	[ALC268_FIXUP_SPDIF] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			{ 0x1e, 0x014b1180 }, /* enable SPDIF out */
+			{}
+		}
+	},
 };
 
 static const struct hda_model_fixup alc268_fixup_models[] = {
@@ -2409,6 +2417,7 @@ static const struct hda_model_fixup alc268_fixup_models[] = {
 };
 
 static const struct snd_pci_quirk alc268_fixup_tbl[] = {
+	SND_PCI_QUIRK(0x1025, 0x0139, "Acer TravelMate 6293", ALC268_FIXUP_SPDIF),
 	SND_PCI_QUIRK(0x1025, 0x015b, "Acer AOA 150 (ZG5)", ALC268_FIXUP_INV_DMIC),
 	/* below is codec SSID since multiple Toshiba laptops have the
 	 * same PCI SSID 1179:ff00
-- 
cgit 


From 9ed9c07d9b7d42fc7042247c2be283731186464f Mon Sep 17 00:00:00 2001
From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Tue, 8 Oct 2013 09:57:20 +0200
Subject: clk: new driver for efm32 SoC
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This patch adds support for the clocks provided by the Clock Management
Unit of Energy Micro's efm32 Giant Gecko SoCs including device tree
bindings.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
---
 .../devicetree/bindings/clock/efm32-clock.txt      | 11 +++
 drivers/clk/Makefile                               |  1 +
 drivers/clk/clk-efm32gg.c                          | 81 ++++++++++++++++++++++
 include/dt-bindings/clock/efm32-cmu.h              | 42 +++++++++++
 4 files changed, 135 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/clock/efm32-clock.txt
 create mode 100644 drivers/clk/clk-efm32gg.c
 create mode 100644 include/dt-bindings/clock/efm32-cmu.h

diff --git a/Documentation/devicetree/bindings/clock/efm32-clock.txt b/Documentation/devicetree/bindings/clock/efm32-clock.txt
new file mode 100644
index 000000000000..263d293f6a10
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/efm32-clock.txt
@@ -0,0 +1,11 @@
+* Clock bindings for Energy Micro efm32 Giant Gecko's Clock Management Unit
+
+Required properties:
+- compatible: Should be "efm32gg,cmu"
+- reg: Base address and length of the register set
+- interrupts: Interrupt used by the CMU
+- #clock-cells: Should be <1>
+
+The clock consumer should specify the desired clock by having the clock ID in
+its "clocks" phandle cell. The header efm32-clk.h contains a list of available
+IDs.
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index df33820b45ec..7a10bc9a23e7 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -11,6 +11,7 @@ obj-$(CONFIG_COMMON_CLK)	+= clk-composite.o
 
 # SoCs specific
 obj-$(CONFIG_ARCH_BCM2835)	+= clk-bcm2835.o
+obj-$(CONFIG_ARCH_EFM32)	+= clk-efm32gg.o
 obj-$(CONFIG_ARCH_NOMADIK)	+= clk-nomadik.o
 obj-$(CONFIG_ARCH_HIGHBANK)	+= clk-highbank.o
 obj-$(CONFIG_ARCH_NSPIRE)	+= clk-nspire.o
diff --git a/drivers/clk/clk-efm32gg.c b/drivers/clk/clk-efm32gg.c
new file mode 100644
index 000000000000..bac2ddf49d02
--- /dev/null
+++ b/drivers/clk/clk-efm32gg.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright (C) 2013 Pengutronix
+ * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
+ *
+ * This program is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License version 2 as published by the
+ * Free Software Foundation.
+ */
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/clk-provider.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+
+#include <dt-bindings/clock/efm32-cmu.h>
+
+#define CMU_HFPERCLKEN0		0x44
+
+static struct clk *clk[37];
+static struct clk_onecell_data clk_data = {
+	.clks = clk,
+	.clk_num = ARRAY_SIZE(clk),
+};
+
+static int __init efm32gg_cmu_init(struct device_node *np)
+{
+	int i;
+	void __iomem *base;
+
+	for (i = 0; i < ARRAY_SIZE(clk); ++i)
+		clk[i] = ERR_PTR(-ENOENT);
+
+	base = of_iomap(np, 0);
+	if (!base) {
+		pr_warn("Failed to map address range for efm32gg,cmu node\n");
+		return -EADDRNOTAVAIL;
+	}
+
+	clk[clk_HFXO] = clk_register_fixed_rate(NULL, "HFXO", NULL,
+			CLK_IS_ROOT, 48000000);
+
+	clk[clk_HFPERCLKUSART0] = clk_register_gate(NULL, "HFPERCLK.USART0",
+			"HFXO", 0, base + CMU_HFPERCLKEN0, 0, 0, NULL);
+	clk[clk_HFPERCLKUSART1] = clk_register_gate(NULL, "HFPERCLK.USART1",
+			"HFXO", 0, base + CMU_HFPERCLKEN0, 1, 0, NULL);
+	clk[clk_HFPERCLKUSART2] = clk_register_gate(NULL, "HFPERCLK.USART2",
+			"HFXO", 0, base + CMU_HFPERCLKEN0, 2, 0, NULL);
+	clk[clk_HFPERCLKUART0] = clk_register_gate(NULL, "HFPERCLK.UART0",
+			"HFXO", 0, base + CMU_HFPERCLKEN0, 3, 0, NULL);
+	clk[clk_HFPERCLKUART1] = clk_register_gate(NULL, "HFPERCLK.UART1",
+			"HFXO", 0, base + CMU_HFPERCLKEN0, 4, 0, NULL);
+	clk[clk_HFPERCLKTIMER0] = clk_register_gate(NULL, "HFPERCLK.TIMER0",
+			"HFXO", 0, base + CMU_HFPERCLKEN0, 5, 0, NULL);
+	clk[clk_HFPERCLKTIMER1] = clk_register_gate(NULL, "HFPERCLK.TIMER1",
+			"HFXO", 0, base + CMU_HFPERCLKEN0, 6, 0, NULL);
+	clk[clk_HFPERCLKTIMER2] = clk_register_gate(NULL, "HFPERCLK.TIMER2",
+			"HFXO", 0, base + CMU_HFPERCLKEN0, 7, 0, NULL);
+	clk[clk_HFPERCLKTIMER3] = clk_register_gate(NULL, "HFPERCLK.TIMER3",
+			"HFXO", 0, base + CMU_HFPERCLKEN0, 8, 0, NULL);
+	clk[clk_HFPERCLKACMP0] = clk_register_gate(NULL, "HFPERCLK.ACMP0",
+			"HFXO", 0, base + CMU_HFPERCLKEN0, 9, 0, NULL);
+	clk[clk_HFPERCLKACMP1] = clk_register_gate(NULL, "HFPERCLK.ACMP1",
+			"HFXO", 0, base + CMU_HFPERCLKEN0, 10, 0, NULL);
+	clk[clk_HFPERCLKI2C0] = clk_register_gate(NULL, "HFPERCLK.I2C0",
+			"HFXO", 0, base + CMU_HFPERCLKEN0, 11, 0, NULL);
+	clk[clk_HFPERCLKI2C1] = clk_register_gate(NULL, "HFPERCLK.I2C1",
+			"HFXO", 0, base + CMU_HFPERCLKEN0, 12, 0, NULL);
+	clk[clk_HFPERCLKGPIO] = clk_register_gate(NULL, "HFPERCLK.GPIO",
+			"HFXO", 0, base + CMU_HFPERCLKEN0, 13, 0, NULL);
+	clk[clk_HFPERCLKVCMP] = clk_register_gate(NULL, "HFPERCLK.VCMP",
+			"HFXO", 0, base + CMU_HFPERCLKEN0, 14, 0, NULL);
+	clk[clk_HFPERCLKPRS] = clk_register_gate(NULL, "HFPERCLK.PRS",
+			"HFXO", 0, base + CMU_HFPERCLKEN0, 15, 0, NULL);
+	clk[clk_HFPERCLKADC0] = clk_register_gate(NULL, "HFPERCLK.ADC0",
+			"HFXO", 0, base + CMU_HFPERCLKEN0, 16, 0, NULL);
+	clk[clk_HFPERCLKDAC0] = clk_register_gate(NULL, "HFPERCLK.DAC0",
+			"HFXO", 0, base + CMU_HFPERCLKEN0, 17, 0, NULL);
+
+	return of_clk_add_provider(np, of_clk_src_onecell_get, &clk_data);
+}
+CLK_OF_DECLARE(efm32ggcmu, "efm32gg,cmu", efm32gg_cmu_init);
diff --git a/include/dt-bindings/clock/efm32-cmu.h b/include/dt-bindings/clock/efm32-cmu.h
new file mode 100644
index 000000000000..b21b91e736af
--- /dev/null
+++ b/include/dt-bindings/clock/efm32-cmu.h
@@ -0,0 +1,42 @@
+#ifndef __DT_BINDINGS_CLOCK_EFM32_CMU_H
+#define __DT_BINDINGS_CLOCK_EFM32_CMU_H
+
+#define clk_HFXO		0
+#define clk_HFRCO		1
+#define clk_LFXO		2
+#define clk_LFRCO		3
+#define clk_ULFRCO		4
+#define clk_AUXHFRCO		5
+#define clk_HFCLKNODIV		6
+#define clk_HFCLK		7
+#define clk_HFPERCLK		8
+#define clk_HFCORECLK		9
+#define clk_LFACLK		10
+#define clk_LFBCLK		11
+#define clk_WDOGCLK		12
+#define clk_HFCORECLKDMA	13
+#define clk_HFCORECLKAES	14
+#define clk_HFCORECLKUSBC	15
+#define clk_HFCORECLKUSB	16
+#define clk_HFCORECLKLE		17
+#define clk_HFCORECLKEBI	18
+#define clk_HFPERCLKUSART0	19
+#define clk_HFPERCLKUSART1	20
+#define clk_HFPERCLKUSART2	21
+#define clk_HFPERCLKUART0	22
+#define clk_HFPERCLKUART1	23
+#define clk_HFPERCLKTIMER0	24
+#define clk_HFPERCLKTIMER1	25
+#define clk_HFPERCLKTIMER2	26
+#define clk_HFPERCLKTIMER3	27
+#define clk_HFPERCLKACMP0	28
+#define clk_HFPERCLKACMP1	29
+#define clk_HFPERCLKI2C0	30
+#define clk_HFPERCLKI2C1	31
+#define clk_HFPERCLKGPIO	32
+#define clk_HFPERCLKVCMP	33
+#define clk_HFPERCLKPRS		34
+#define clk_HFPERCLKADC0	35
+#define clk_HFPERCLKDAC0	36
+
+#endif /* __DT_BINDINGS_CLOCK_EFM32_CMU_H */
-- 
cgit 


From cea80ea8d2a4c646f240a8fd6ece5c8e7bc969d3 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 4 Nov 2013 17:10:25 +0100
Subject: net: checksum: fix warning in skb_checksum

This patch fixes a build warning in skb_checksum() by wrapping the
csum_partial() usage in skb_checksum(). The problem is that on a few
architectures, csum_partial is used with prefix asmlinkage whereas
on most architectures it's not. So fix this up generically as we did
with csum_block_add_ext() to match the signature. Introduced by
2817a336d4d ("net: skb_checksum: allow custom update/combine for
walking skb").

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/checksum.h | 5 +++++
 net/core/skbuff.c      | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/include/net/checksum.h b/include/net/checksum.h
index 15f33fde826e..37a0e24adbe7 100644
--- a/include/net/checksum.h
+++ b/include/net/checksum.h
@@ -98,6 +98,11 @@ static inline __wsum csum_unfold(__sum16 n)
 	return (__force __wsum)n;
 }
 
+static inline __wsum csum_partial_ext(const void *buff, int len, __wsum sum)
+{
+	return csum_partial(buff, len, sum);
+}
+
 #define CSUM_MANGLED_0 ((__force __sum16)0xffff)
 
 static inline void csum_replace4(__sum16 *sum, __be32 from, __be32 to)
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 31aab5376cb4..e4115597b38b 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2003,7 +2003,7 @@ __wsum skb_checksum(const struct sk_buff *skb, int offset,
 		    int len, __wsum csum)
 {
 	const struct skb_checksum_ops ops = {
-		.update  = csum_partial,
+		.update  = csum_partial_ext,
 		.combine = csum_block_add_ext,
 	};
 
-- 
cgit 


From cc0ac1999589c9f713550adde85a09b0dbb75d86 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 4 Nov 2013 17:10:26 +0100
Subject: lib: crc32: conditionally resched when running testcases

Fengguang reports that when crc32 selftests are running on startup, on
some e.g. 32bit systems, we can get a CPU stall like "INFO: rcu_sched
self-detected stall on CPU { 0} (t=2101 jiffies g=4294967081 c=4294967080
q=41)". As this is not intended, add a cond_resched() at the end of a
test case to fix it. Introduced by efba721f63 ("lib: crc32: add test cases
for crc32{, c}_combine routines").

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 lib/crc32.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/crc32.c b/lib/crc32.c
index 69dd124f0cfc..3a1dfa84203c 100644
--- a/lib/crc32.c
+++ b/lib/crc32.c
@@ -29,6 +29,7 @@
 #include <linux/crc32.h>
 #include <linux/module.h>
 #include <linux/types.h>
+#include <linux/sched.h>
 #include "crc32defs.h"
 
 #if CRC_LE_BITS > 8
@@ -1054,6 +1055,7 @@ static int __init crc32c_combine_test(void)
 			      crc_full == test[i].crc32c_le))
 				errors++;
 			runs++;
+			cond_resched();
 		}
 	}
 
@@ -1147,6 +1149,7 @@ static int __init crc32_combine_test(void)
 			      crc_full == test[i].crc_le))
 				errors++;
 			runs++;
+			cond_resched();
 		}
 	}
 
-- 
cgit 


From 165148396d8a220c0fb62e30101ea99b0223864e Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 4 Nov 2013 17:10:27 +0100
Subject: lib: crc32: reduce number of cases for crc32{, c}_combine

We can safely reduce the number of test cases by a tenth.
There is no particular need to run as many as we're running
now for crc32{,c}_combine, that gives us still ~8000 tests
we're doing if people run kernels with crc selftests enabled
which is perfectly fine.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 lib/crc32.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/crc32.c b/lib/crc32.c
index 3a1dfa84203c..70f00ca5ef1e 100644
--- a/lib/crc32.c
+++ b/lib/crc32.c
@@ -1037,7 +1037,7 @@ static int __init crc32c_combine_test(void)
 	int i, j;
 	int errors = 0, runs = 0;
 
-	for (i = 0; i < 100; i++) {
+	for (i = 0; i < 10; i++) {
 		u32 crc_full;
 
 		crc_full = __crc32c_le(test[i].crc, test_buf + test[i].start,
@@ -1131,7 +1131,7 @@ static int __init crc32_combine_test(void)
 	int i, j;
 	int errors = 0, runs = 0;
 
-	for (i = 0; i < 100; i++) {
+	for (i = 0; i < 10; i++) {
 		u32 crc_full;
 
 		crc_full = crc32_le(test[i].crc, test_buf + test[i].start,
-- 
cgit 


From 78ea2d977a11b2435d733628463cf1274cf40531 Mon Sep 17 00:00:00 2001
From: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Date: Mon, 4 Nov 2013 13:31:29 -0500
Subject: qlcnic: Register netdev in FAILED state for 83xx/84xx

o Without failing probe, register netdev when device is in FAILED state.
o Device will come up with minimum functionality and allow diagnostics and
  repair of the adapter.

Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic.h        |  1 +
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c    | 32 ++++++++++++++-----
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c  | 16 ++++++----
 .../net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c    |  6 ++--
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c   | 37 +++++++++++++++++-----
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c  |  8 ++---
 6 files changed, 67 insertions(+), 33 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index 0c2405dbc970..db83edfac723 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -961,6 +961,7 @@ struct qlcnic_ipaddr {
 #define __QLCNIC_SRIOV_CAPABLE		11
 #define __QLCNIC_MBX_POLL_ENABLE	12
 #define __QLCNIC_DIAG_MODE		13
+#define __QLCNIC_MAINTENANCE_MODE	16
 
 #define QLCNIC_INTERRUPT_TEST		1
 #define QLCNIC_LOOPBACK_TEST		2
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index a44b9395b37a..359e0f279b71 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -325,7 +325,8 @@ inline void qlcnic_83xx_clear_legacy_intr_mask(struct qlcnic_adapter *adapter)
 
 inline void qlcnic_83xx_set_legacy_intr_mask(struct qlcnic_adapter *adapter)
 {
-	writel(1, adapter->tgt_mask_reg);
+	if (adapter->tgt_mask_reg)
+		writel(1, adapter->tgt_mask_reg);
 }
 
 /* Enable MSI-x and INT-x interrupts */
@@ -498,8 +499,11 @@ void qlcnic_83xx_free_mbx_intr(struct qlcnic_adapter *adapter)
 		num_msix = 0;
 
 	msleep(20);
-	synchronize_irq(adapter->msix_entries[num_msix].vector);
-	free_irq(adapter->msix_entries[num_msix].vector, adapter);
+
+	if (adapter->msix_entries) {
+		synchronize_irq(adapter->msix_entries[num_msix].vector);
+		free_irq(adapter->msix_entries[num_msix].vector, adapter);
+	}
 }
 
 int qlcnic_83xx_setup_mbx_intr(struct qlcnic_adapter *adapter)
@@ -760,6 +764,9 @@ int qlcnic_83xx_issue_cmd(struct qlcnic_adapter *adapter,
 	int cmd_type, err, opcode;
 	unsigned long timeout;
 
+	if (!mbx)
+		return -EIO;
+
 	opcode = LSW(cmd->req.arg[0]);
 	cmd_type = cmd->type;
 	err = mbx->ops->enqueue_cmd(adapter, cmd, &timeout);
@@ -3049,11 +3056,14 @@ int qlcnic_83xx_get_settings(struct qlcnic_adapter *adapter,
 	int status = 0;
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
 
-	/* Get port configuration info */
-	status = qlcnic_83xx_get_port_info(adapter);
-	/* Get Link Status related info */
-	config = qlcnic_83xx_test_link(adapter);
-	ahw->module_type = QLC_83XX_SFP_MODULE_TYPE(config);
+	if (!test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
+		/* Get port configuration info */
+		status = qlcnic_83xx_get_port_info(adapter);
+		/* Get Link Status related info */
+		config = qlcnic_83xx_test_link(adapter);
+		ahw->module_type = QLC_83XX_SFP_MODULE_TYPE(config);
+	}
+
 	/* hard code until there is a way to get it from flash */
 	ahw->board_type = QLCNIC_BRDTYPE_83XX_10G;
 
@@ -3530,6 +3540,9 @@ void qlcnic_83xx_reinit_mbx_work(struct qlcnic_mailbox *mbx)
 
 void qlcnic_83xx_free_mailbox(struct qlcnic_mailbox *mbx)
 {
+	if (!mbx)
+		return;
+
 	destroy_workqueue(mbx->work_q);
 	kfree(mbx);
 }
@@ -3650,6 +3663,9 @@ void qlcnic_83xx_detach_mailbox_work(struct qlcnic_adapter *adapter)
 {
 	struct qlcnic_mailbox *mbx = adapter->ahw->mailbox;
 
+	if (!mbx)
+		return;
+
 	clear_bit(QLC_83XX_MBX_READY, &mbx->status);
 	complete(&mbx->completion);
 	cancel_work_sync(&mbx->work);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
index e2cd48417041..4a8a3f1b0345 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
@@ -2190,20 +2190,24 @@ int qlcnic_83xx_init(struct qlcnic_adapter *adapter, int pci_using_dac)
 			return err;
 	}
 
+	if (qlcnic_83xx_read_flash_descriptor_table(adapter) ||
+	    qlcnic_83xx_read_flash_mfg_id(adapter)) {
+		dev_err(&adapter->pdev->dev, "Failed reading flash mfg id\n");
+		err = -ENOTRECOVERABLE;
+		goto detach_mbx;
+	}
+
 	err = qlcnic_83xx_check_hw_status(adapter);
 	if (err)
 		goto detach_mbx;
 
-	if (!qlcnic_83xx_read_flash_descriptor_table(adapter))
-		qlcnic_83xx_read_flash_mfg_id(adapter);
-
 	err = qlcnic_83xx_get_fw_info(adapter);
 	if (err)
 		goto detach_mbx;
 
 	err = qlcnic_83xx_idc_init(adapter);
 	if (err)
-		goto clear_fw_info;
+		goto detach_mbx;
 
 	err = qlcnic_setup_intr(adapter, 0, 0);
 	if (err) {
@@ -2247,12 +2251,10 @@ disable_mbx_intr:
 disable_intr:
 	qlcnic_teardown_intr(adapter);
 
-clear_fw_info:
-	kfree(ahw->fw_info);
-
 detach_mbx:
 	qlcnic_83xx_detach_mailbox_work(adapter);
 	qlcnic_83xx_free_mailbox(ahw->mailbox);
+	ahw->mailbox = NULL;
 exit:
 	return err;
 }
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
index b2a8805997ca..0aaa52b3bced 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
@@ -1685,7 +1685,6 @@ qlcnic_set_dump(struct net_device *netdev, struct ethtool_dump *val)
 	struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
 	bool valid_mask = false;
 	int i, ret = 0;
-	u32 state;
 
 	switch (val->flag) {
 	case QLCNIC_FORCE_FW_DUMP_KEY:
@@ -1738,9 +1737,8 @@ qlcnic_set_dump(struct net_device *netdev, struct ethtool_dump *val)
 
 	case QLCNIC_SET_QUIESCENT:
 	case QLCNIC_RESET_QUIESCENT:
-		state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
-		if (state == QLCNIC_DEV_FAILED || (state == QLCNIC_DEV_BADBAD))
-			netdev_info(netdev, "Device in FAILED state\n");
+		if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state))
+			netdev_info(netdev, "Device is in non-operational state\n");
 		break;
 
 	default:
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index b97e4a0079d1..47a33fe0824f 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -2307,10 +2307,23 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		qlcnic_83xx_check_vf(adapter, ent);
 		adapter->portnum = adapter->ahw->pci_func;
 		err = qlcnic_83xx_init(adapter, pci_using_dac);
+
 		if (err) {
-			dev_err(&pdev->dev, "%s: failed\n", __func__);
-			goto err_out_free_hw;
+			switch (err) {
+			case -ENOTRECOVERABLE:
+				dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware. Please reboot\n");
+				dev_err(&pdev->dev, "If reboot doesn't help, please replace the adapter with new one and return the faulty adapter for repair\n");
+				goto err_out_free_hw;
+			case -ENOMEM:
+				dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
+				goto err_out_free_hw;
+			default:
+				dev_err(&pdev->dev, "Adapter initialization failed. A reboot may be required to recover from this failure\n");
+				dev_err(&pdev->dev, "If reboot does not help to recover from this failure, try a flash update of the adapter\n");
+				goto err_out_maintenance_mode;
+			}
 		}
+
 		if (qlcnic_sriov_vf_check(adapter))
 			return 0;
 	} else {
@@ -2412,8 +2425,16 @@ err_out_disable_pdev:
 	return err;
 
 err_out_maintenance_mode:
+	set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
 	netdev->netdev_ops = &qlcnic_netdev_failed_ops;
 	SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_failed_ops);
+	ahw->port_type = QLCNIC_XGBE;
+
+	if (qlcnic_83xx_check(adapter))
+		adapter->tgt_status_reg = NULL;
+	else
+		ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
+
 	err = register_netdev(netdev);
 
 	if (err) {
@@ -2535,12 +2556,11 @@ static int qlcnic_resume(struct pci_dev *pdev)
 static int qlcnic_open(struct net_device *netdev)
 {
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
-	u32 state;
 	int err;
 
-	state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
-	if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD) {
-		netdev_err(netdev, "%s: Device is in FAILED state\n", __func__);
+	if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
+		netdev_err(netdev, "%s: Device is in non-operational state\n",
+			   __func__);
 
 		return -EIO;
 	}
@@ -3253,8 +3273,9 @@ void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
 		return;
 
 	state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
-	if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD) {
-		netdev_err(adapter->netdev, "%s: Device is in FAILED state\n",
+
+	if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
+		netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
 			   __func__);
 		qlcnic_api_unlock(adapter);
 
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
index 019f4377307f..e8b1ce64c33a 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
@@ -1272,7 +1272,6 @@ void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
 void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
 {
 	struct device *dev = &adapter->pdev->dev;
-	u32 state;
 
 	if (device_create_bin_file(dev, &bin_attr_port_stats))
 		dev_info(dev, "failed to create port stats sysfs entry");
@@ -1286,8 +1285,7 @@ void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
 	if (device_create_bin_file(dev, &bin_attr_mem))
 		dev_info(dev, "failed to create mem sysfs entry\n");
 
-	state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
-	if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD)
+	if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state))
 		return;
 
 	if (device_create_bin_file(dev, &bin_attr_pci_config))
@@ -1313,7 +1311,6 @@ void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
 void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
 {
 	struct device *dev = &adapter->pdev->dev;
-	u32 state;
 
 	device_remove_bin_file(dev, &bin_attr_port_stats);
 
@@ -1323,8 +1320,7 @@ void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
 	device_remove_bin_file(dev, &bin_attr_crb);
 	device_remove_bin_file(dev, &bin_attr_mem);
 
-	state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
-	if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD)
+	if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state))
 		return;
 
 	device_remove_bin_file(dev, &bin_attr_pci_config);
-- 
cgit 


From f27c75b3903ab02bfe295aa58ad61ef5b756b065 Mon Sep 17 00:00:00 2001
From: Himanshu Madhani <himanshu.madhani@qlogic.com>
Date: Mon, 4 Nov 2013 13:31:30 -0500
Subject: qlcnic: Enhance ethtool Statistics for Multiple Tx queue.

o Enhance ethtool statistics to display multiple Tx queue stats for
  all supported adapters.

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic.h        | 13 ++-
 .../net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c    | 96 +++++++++++++++-------
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c     | 14 ++--
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c   | 33 ++++----
 4 files changed, 94 insertions(+), 62 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index db83edfac723..2d818c1a469b 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -533,6 +533,14 @@ struct qlcnic_host_sds_ring {
 	char name[IFNAMSIZ + 12];
 } ____cacheline_internodealigned_in_smp;
 
+struct qlcnic_tx_queue_stats {
+	u64 xmit_on;
+	u64 xmit_off;
+	u64 xmit_called;
+	u64 xmit_finished;
+	u64 tx_bytes;
+};
+
 struct qlcnic_host_tx_ring {
 	int irq;
 	void __iomem *crb_intr_mask;
@@ -544,10 +552,7 @@ struct qlcnic_host_tx_ring {
 	u32 sw_consumer;
 	u32 num_desc;
 
-	u64 xmit_on;
-	u64 xmit_off;
-	u64 xmit_called;
-	u64 xmit_finished;
+	struct qlcnic_tx_queue_stats tx_stats;
 
 	void __iomem *crb_cmd_producer;
 	struct cmd_desc_type0 *desc_head;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
index 0aaa52b3bced..9b6dd984fe00 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
@@ -27,43 +27,36 @@ static const u32 qlcnic_fw_dump_level[] = {
 };
 
 static const struct qlcnic_stats qlcnic_gstrings_stats[] = {
+	{"xmit_on", QLC_SIZEOF(stats.xmit_on), QLC_OFF(stats.xmit_on)},
+	{"xmit_off", QLC_SIZEOF(stats.xmit_off), QLC_OFF(stats.xmit_off)},
 	{"xmit_called", QLC_SIZEOF(stats.xmitcalled),
-		QLC_OFF(stats.xmitcalled)},
+	 QLC_OFF(stats.xmitcalled)},
 	{"xmit_finished", QLC_SIZEOF(stats.xmitfinished),
-		QLC_OFF(stats.xmitfinished)},
-	{"rx_dropped", QLC_SIZEOF(stats.rxdropped), QLC_OFF(stats.rxdropped)},
+	 QLC_OFF(stats.xmitfinished)},
+	{"tx dma map error", QLC_SIZEOF(stats.tx_dma_map_error),
+	 QLC_OFF(stats.tx_dma_map_error)},
+	{"tx_bytes", QLC_SIZEOF(stats.txbytes), QLC_OFF(stats.txbytes)},
 	{"tx_dropped", QLC_SIZEOF(stats.txdropped), QLC_OFF(stats.txdropped)},
-	{"csummed", QLC_SIZEOF(stats.csummed), QLC_OFF(stats.csummed)},
+	{"rx dma map error", QLC_SIZEOF(stats.rx_dma_map_error),
+	 QLC_OFF(stats.rx_dma_map_error)},
 	{"rx_pkts", QLC_SIZEOF(stats.rx_pkts), QLC_OFF(stats.rx_pkts)},
-	{"lro_pkts", QLC_SIZEOF(stats.lro_pkts), QLC_OFF(stats.lro_pkts)},
 	{"rx_bytes", QLC_SIZEOF(stats.rxbytes), QLC_OFF(stats.rxbytes)},
-	{"tx_bytes", QLC_SIZEOF(stats.txbytes), QLC_OFF(stats.txbytes)},
+	{"rx_dropped", QLC_SIZEOF(stats.rxdropped), QLC_OFF(stats.rxdropped)},
+	{"null rxbuf", QLC_SIZEOF(stats.null_rxbuf), QLC_OFF(stats.null_rxbuf)},
+	{"csummed", QLC_SIZEOF(stats.csummed), QLC_OFF(stats.csummed)},
+	{"lro_pkts", QLC_SIZEOF(stats.lro_pkts), QLC_OFF(stats.lro_pkts)},
 	{"lrobytes", QLC_SIZEOF(stats.lrobytes), QLC_OFF(stats.lrobytes)},
 	{"lso_frames", QLC_SIZEOF(stats.lso_frames), QLC_OFF(stats.lso_frames)},
-	{"xmit_on", QLC_SIZEOF(stats.xmit_on), QLC_OFF(stats.xmit_on)},
-	{"xmit_off", QLC_SIZEOF(stats.xmit_off), QLC_OFF(stats.xmit_off)},
 	{"skb_alloc_failure", QLC_SIZEOF(stats.skb_alloc_failure),
 	 QLC_OFF(stats.skb_alloc_failure)},
-	{"null rxbuf", QLC_SIZEOF(stats.null_rxbuf), QLC_OFF(stats.null_rxbuf)},
-	{"rx dma map error", QLC_SIZEOF(stats.rx_dma_map_error),
-					 QLC_OFF(stats.rx_dma_map_error)},
-	{"tx dma map error", QLC_SIZEOF(stats.tx_dma_map_error),
-					 QLC_OFF(stats.tx_dma_map_error)},
 	{"mac_filter_limit_overrun", QLC_SIZEOF(stats.mac_filter_limit_overrun),
-				QLC_OFF(stats.mac_filter_limit_overrun)},
+	 QLC_OFF(stats.mac_filter_limit_overrun)},
 	{"spurious intr", QLC_SIZEOF(stats.spurious_intr),
 	 QLC_OFF(stats.spurious_intr)},
 
 };
 
 static const char qlcnic_device_gstrings_stats[][ETH_GSTRING_LEN] = {
-	"rx unicast frames",
-	"rx multicast frames",
-	"rx broadcast frames",
-	"rx dropped frames",
-	"rx errors",
-	"rx local frames",
-	"rx numbytes",
 	"tx unicast frames",
 	"tx multicast frames",
 	"tx broadcast frames",
@@ -71,6 +64,13 @@ static const char qlcnic_device_gstrings_stats[][ETH_GSTRING_LEN] = {
 	"tx errors",
 	"tx local frames",
 	"tx numbytes",
+	"rx unicast frames",
+	"rx multicast frames",
+	"rx broadcast frames",
+	"rx dropped frames",
+	"rx errors",
+	"rx local frames",
+	"rx numbytes",
 };
 
 static const char qlcnic_83xx_tx_stats_strings[][ETH_GSTRING_LEN] = {
@@ -126,13 +126,16 @@ static const char qlcnic_83xx_mac_stats_strings[][ETH_GSTRING_LEN] = {
 
 #define QLCNIC_STATS_LEN	ARRAY_SIZE(qlcnic_gstrings_stats)
 
-static const char qlcnic_tx_ring_stats_strings[][ETH_GSTRING_LEN] = {
+static const char qlcnic_tx_queue_stats_strings[][ETH_GSTRING_LEN] = {
 	"xmit_on",
 	"xmit_off",
 	"xmit_called",
 	"xmit_finished",
+	"tx_bytes",
 };
 
+#define QLCNIC_TX_STATS_LEN	ARRAY_SIZE(qlcnic_tx_queue_stats_strings)
+
 static const char qlcnic_83xx_rx_stats_strings[][ETH_GSTRING_LEN] = {
 	"ctx_rx_bytes",
 	"ctx_rx_pkts",
@@ -1123,11 +1126,11 @@ qlcnic_get_strings(struct net_device *dev, u32 stringset, u8 *data)
 		       QLCNIC_TEST_LEN * ETH_GSTRING_LEN);
 		break;
 	case ETH_SS_STATS:
-		num_stats = ARRAY_SIZE(qlcnic_tx_ring_stats_strings);
+		num_stats = ARRAY_SIZE(qlcnic_tx_queue_stats_strings);
 		for (i = 0; i < adapter->max_drv_tx_rings; i++) {
 			for (index = 0; index < num_stats; index++) {
-				sprintf(data, "tx_ring_%d %s", i,
-					qlcnic_tx_ring_stats_strings[index]);
+				sprintf(data, "tx_queue_%d %s", i,
+					qlcnic_tx_queue_stats_strings[index]);
 				data += ETH_GSTRING_LEN;
 			}
 		}
@@ -1225,6 +1228,36 @@ static u64 *qlcnic_fill_stats(u64 *data, void *stats, int type)
 	return data;
 }
 
+static void qlcnic_update_stats(struct qlcnic_adapter *adapter)
+{
+	struct qlcnic_host_tx_ring *tx_ring;
+	int ring;
+
+	for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+		tx_ring = &adapter->tx_ring[ring];
+		adapter->stats.xmit_on += tx_ring->tx_stats.xmit_on;
+		adapter->stats.xmit_off += tx_ring->tx_stats.xmit_off;
+		adapter->stats.xmitcalled += tx_ring->tx_stats.xmit_called;
+		adapter->stats.xmitfinished += tx_ring->tx_stats.xmit_finished;
+		adapter->stats.txbytes += tx_ring->tx_stats.tx_bytes;
+	}
+}
+
+static u64 *qlcnic_fill_tx_queue_stats(u64 *data, void *stats)
+{
+	struct qlcnic_host_tx_ring *tx_ring;
+
+	tx_ring = (struct qlcnic_host_tx_ring *)stats;
+
+	*data++ = QLCNIC_FILL_STATS(tx_ring->tx_stats.xmit_on);
+	*data++ = QLCNIC_FILL_STATS(tx_ring->tx_stats.xmit_off);
+	*data++ = QLCNIC_FILL_STATS(tx_ring->tx_stats.xmit_called);
+	*data++ = QLCNIC_FILL_STATS(tx_ring->tx_stats.xmit_finished);
+	*data++ = QLCNIC_FILL_STATS(tx_ring->tx_stats.tx_bytes);
+
+	return data;
+}
+
 static void qlcnic_get_ethtool_stats(struct net_device *dev,
 				     struct ethtool_stats *stats, u64 *data)
 {
@@ -1232,19 +1265,20 @@ static void qlcnic_get_ethtool_stats(struct net_device *dev,
 	struct qlcnic_host_tx_ring *tx_ring;
 	struct qlcnic_esw_statistics port_stats;
 	struct qlcnic_mac_statistics mac_stats;
-	int index, ret, length, size, ring;
+	int index, ret, length, size, tx_size, ring;
 	char *p;
 
-	memset(data, 0, adapter->max_drv_tx_rings * 4 * sizeof(u64));
+	tx_size = adapter->max_drv_tx_rings * QLCNIC_TX_STATS_LEN;
+
+	memset(data, 0, tx_size * sizeof(u64));
 	for (ring = 0, index = 0; ring < adapter->max_drv_tx_rings; ring++) {
 		if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 			tx_ring = &adapter->tx_ring[ring];
-			*data++ = tx_ring->xmit_on;
-			*data++ = tx_ring->xmit_off;
-			*data++ = tx_ring->xmit_called;
-			*data++ = tx_ring->xmit_finished;
+			data = qlcnic_fill_tx_queue_stats(data, tx_ring);
+			qlcnic_update_stats(adapter);
 		}
 	}
+
 	memset(data, 0, stats->n_stats * sizeof(u64));
 	length = QLCNIC_STATS_LEN;
 	for (index = 0; index < length; index++) {
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
index 897627dd1d04..df31be7a7aba 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
@@ -607,8 +607,7 @@ netdev_tx_t qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 		if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
 			netif_tx_start_queue(tx_ring->txq);
 		} else {
-			adapter->stats.xmit_off++;
-			tx_ring->xmit_off++;
+			tx_ring->tx_stats.xmit_off++;
 			return NETDEV_TX_BUSY;
 		}
 	}
@@ -669,9 +668,8 @@ netdev_tx_t qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 	if (adapter->drv_mac_learn)
 		qlcnic_send_filter(adapter, first_desc, skb);
 
-	adapter->stats.txbytes += skb->len;
-	adapter->stats.xmitcalled++;
-	tx_ring->xmit_called++;
+	tx_ring->tx_stats.tx_bytes += skb->len;
+	tx_ring->tx_stats.xmit_called++;
 
 	qlcnic_update_cmd_producer(tx_ring);
 
@@ -805,8 +803,7 @@ static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter,
 					       PCI_DMA_TODEVICE);
 				frag->dma = 0ULL;
 			}
-			adapter->stats.xmitfinished++;
-			tx_ring->xmit_finished++;
+			tx_ring->tx_stats.xmit_finished++;
 			dev_kfree_skb_any(buffer->skb);
 			buffer->skb = NULL;
 		}
@@ -823,8 +820,7 @@ static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter,
 		    netif_carrier_ok(netdev)) {
 			if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
 				netif_tx_wake_queue(tx_ring->txq);
-				adapter->stats.xmit_on++;
-				tx_ring->xmit_on++;
+				tx_ring->tx_stats.xmit_on++;
 			}
 		}
 		adapter->tx_timeo_cnt = 0;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 47a33fe0824f..fab5f3b6be4b 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -2722,24 +2722,21 @@ static void qlcnic_tx_timeout(struct net_device *netdev)
 						      QLCNIC_FORCE_FW_DUMP_KEY);
 	} else {
 		netdev_info(netdev, "Tx timeout, reset adapter context.\n");
-		if (qlcnic_82xx_check(adapter)) {
-			for (ring = 0; ring < adapter->max_drv_tx_rings;
-			     ring++) {
-				tx_ring = &adapter->tx_ring[ring];
-				dev_info(&netdev->dev, "ring=%d\n", ring);
-				dev_info(&netdev->dev, "crb_intr_mask=%d\n",
-					 readl(tx_ring->crb_intr_mask));
-				dev_info(&netdev->dev, "producer=%d\n",
-					 readl(tx_ring->crb_cmd_producer));
-				dev_info(&netdev->dev, "sw_consumer = %d\n",
-					 tx_ring->sw_consumer);
-				dev_info(&netdev->dev, "hw_consumer = %d\n",
-					 le32_to_cpu(*(tx_ring->hw_consumer)));
-				dev_info(&netdev->dev, "xmit-on=%llu\n",
-					 tx_ring->xmit_on);
-				dev_info(&netdev->dev, "xmit-off=%llu\n",
-					 tx_ring->xmit_off);
-			}
+		for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+			tx_ring = &adapter->tx_ring[ring];
+			netdev_info(netdev, "Tx ring=%d\n", ring);
+			netdev_info(netdev,
+				    "crb_intr_mask=%d, producer=%d, sw_consumer=%d, hw_consumer=%d\n",
+				    readl(tx_ring->crb_intr_mask),
+				    readl(tx_ring->crb_cmd_producer),
+				    tx_ring->sw_consumer,
+				    le32_to_cpu(*(tx_ring->hw_consumer)));
+			netdev_info(netdev,
+				    "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
+				    tx_ring->tx_stats.xmit_finished,
+				    tx_ring->tx_stats.xmit_called,
+				    tx_ring->tx_stats.xmit_on,
+				    tx_ring->tx_stats.xmit_off);
 		}
 		adapter->ahw->reset_context = 1;
 	}
-- 
cgit 


From 34e8c406fda5b5a9d2e126a92bab84cd28e3b5fa Mon Sep 17 00:00:00 2001
From: Himanshu Madhani <himanshu.madhani@qlogic.com>
Date: Mon, 4 Nov 2013 13:31:31 -0500
Subject: qlcnic: refactor Tx/SDS ring calculation and validation in driver.

o Current driver has duplicate code for validating user input
  for changing Tx/SDS rings using set_channel ethtool interface.
  This patch removes duplicate code and refactored Tx/SDS ring
  validation for 82xx/83xx/84xx series adapter.
o Refactored code now calculates maximum Tx/Rx ring driver can
  support based on Default, NPAR and SRIOV PF/VF mode of driver.

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic.h        |  66 +++--
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c    |  69 +++--
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h    |  13 +-
 .../net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c  |  38 ++-
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c    |  20 +-
 .../net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c    | 116 +++++---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h     |   8 +-
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_init.c   |   2 +-
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c     |  46 +--
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c   | 327 ++++++++++-----------
 .../ethernet/qlogic/qlcnic/qlcnic_sriov_common.c   |   6 +-
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c  |   4 +-
 12 files changed, 404 insertions(+), 311 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index 2d818c1a469b..3109730556be 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -98,8 +98,22 @@
 #define TX_STOP_THRESH		((MAX_SKB_FRAGS >> 2) + MAX_TSO_HEADER_DESC \
 							+ MGMT_CMD_DESC_RESV)
 #define QLCNIC_MAX_TX_TIMEOUTS	2
-#define QLCNIC_MAX_TX_RINGS	8
-#define QLCNIC_MAX_SDS_RINGS	8
+
+/* Driver will use 1 Tx ring in INT-x/MSI/SRIOV mode. */
+#define QLCNIC_SINGLE_RING		1
+#define QLCNIC_DEF_SDS_RINGS		4
+#define QLCNIC_DEF_TX_RINGS		4
+#define QLCNIC_MAX_VNIC_TX_RINGS	4
+#define QLCNIC_MAX_VNIC_SDS_RINGS	4
+
+enum qlcnic_queue_type {
+	QLCNIC_TX_QUEUE = 1,
+	QLCNIC_RX_QUEUE,
+};
+
+/* Operational mode for driver */
+#define QLCNIC_VNIC_MODE	0xFF
+#define QLCNIC_DEFAULT_MODE	0x0
 
 /*
  * Following are the states of the Phantom. Phantom will set them and
@@ -945,8 +959,6 @@ struct qlcnic_ipaddr {
 #define QLCNIC_BEACON_EANBLE		0xC
 #define QLCNIC_BEACON_DISABLE		0xD
 
-#define QLCNIC_DEF_NUM_STS_DESC_RINGS	4
-#define QLCNIC_DEF_NUM_TX_RINGS		4
 #define QLCNIC_MSIX_TBL_SPACE		8192
 #define QLCNIC_PCI_REG_MSIX_TBL 	0x44
 #define QLCNIC_MSIX_TBL_PGSIZE		4096
@@ -1017,7 +1029,6 @@ struct qlcnic_adapter {
 	unsigned long state;
 	u32 flags;
 
-	int max_drv_tx_rings;
 	u16 num_txd;
 	u16 num_rxd;
 	u16 num_jumbo_rxd;
@@ -1025,7 +1036,13 @@ struct qlcnic_adapter {
 	u16 max_jumbo_rxd;
 
 	u8 max_rds_rings;
-	u8 max_sds_rings;
+
+	u8 max_sds_rings; /* max sds rings supported by adapter */
+	u8 max_tx_rings;  /* max tx rings supported by adapter */
+
+	u8 drv_tx_rings;  /* max tx rings supported by driver */
+	u8 drv_sds_rings; /* max sds rings supported by driver */
+
 	u8 rx_csum;
 	u8 portnum;
 
@@ -1548,12 +1565,13 @@ int qlcnic_loopback_test(struct net_device *, u8);
 
 /* Functions from qlcnic_main.c */
 int qlcnic_reset_context(struct qlcnic_adapter *);
-void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings);
-int qlcnic_diag_alloc_res(struct net_device *netdev, int test);
-netdev_tx_t qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev);
-int qlcnic_set_max_rss(struct qlcnic_adapter *, u8, int);
-int qlcnic_validate_max_rss(struct qlcnic_adapter *, __u32);
-int qlcnic_validate_max_tx_rings(struct qlcnic_adapter *, u32 txq);
+void qlcnic_diag_free_res(struct net_device *netdev, int);
+int qlcnic_diag_alloc_res(struct net_device *netdev, int);
+netdev_tx_t qlcnic_xmit_frame(struct sk_buff *, struct net_device *);
+void qlcnic_set_tx_ring_count(struct qlcnic_adapter *, u8);
+void qlcnic_set_sds_ring_count(struct qlcnic_adapter *, u8);
+int qlcnic_setup_rings(struct qlcnic_adapter *, u8, u8);
+int qlcnic_validate_rings(struct qlcnic_adapter *, __u32, int);
 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter);
 void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
 int qlcnic_enable_msix(struct qlcnic_adapter *, u32);
@@ -1646,19 +1664,18 @@ static inline u32 qlcnic_tx_avail(struct qlcnic_host_tx_ring *tx_ring)
 static inline int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
 					     struct net_device *netdev)
 {
-	int err, tx_q;
-
-	tx_q = adapter->max_drv_tx_rings;
+	int err;
 
-	netdev->num_tx_queues = tx_q;
-	netdev->real_num_tx_queues = tx_q;
+	netdev->num_tx_queues = adapter->drv_tx_rings;
+	netdev->real_num_tx_queues = adapter->drv_tx_rings;
 
-	err = netif_set_real_num_tx_queues(netdev, tx_q);
+	err = netif_set_real_num_tx_queues(netdev, adapter->drv_tx_rings);
 	if (err)
 		dev_err(&adapter->pdev->dev, "failed to set %d Tx queues\n",
-			tx_q);
+			adapter->drv_tx_rings);
 	else
-		dev_info(&adapter->pdev->dev, "set %d Tx queues\n", tx_q);
+		dev_info(&adapter->pdev->dev, "Set %d Tx queues\n",
+			 adapter->drv_tx_rings);
 
 	return err;
 }
@@ -1700,7 +1717,7 @@ struct qlcnic_hardware_ops {
 	int (*write_reg) (struct qlcnic_adapter *, ulong, u32);
 	void (*get_ocm_win) (struct qlcnic_hardware_context *);
 	int (*get_mac_address) (struct qlcnic_adapter *, u8 *, u8);
-	int (*setup_intr) (struct qlcnic_adapter *, u8, int);
+	int (*setup_intr) (struct qlcnic_adapter *);
 	int (*alloc_mbx_args)(struct qlcnic_cmd_args *,
 			      struct qlcnic_adapter *, u32);
 	int (*mbx_cmd) (struct qlcnic_adapter *, struct qlcnic_cmd_args *);
@@ -1771,10 +1788,9 @@ static inline int qlcnic_get_mac_address(struct qlcnic_adapter *adapter,
 	return adapter->ahw->hw_ops->get_mac_address(adapter, mac, function);
 }
 
-static inline int qlcnic_setup_intr(struct qlcnic_adapter *adapter,
-				    u8 num_intr, int txq)
+static inline int qlcnic_setup_intr(struct qlcnic_adapter *adapter)
 {
-	return adapter->ahw->hw_ops->setup_intr(adapter, num_intr, txq);
+	return adapter->ahw->hw_ops->setup_intr(adapter);
 }
 
 static inline int qlcnic_alloc_mbx_args(struct qlcnic_cmd_args *mbx,
@@ -2010,7 +2026,7 @@ static inline bool qlcnic_check_multi_tx(struct qlcnic_adapter *adapter)
 static inline void qlcnic_disable_multi_tx(struct qlcnic_adapter *adapter)
 {
 	test_and_clear_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
-	adapter->max_drv_tx_rings = 1;
+	adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
 }
 
 /* When operating in a muti tx mode, driver needs to write 0x1
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index 359e0f279b71..df6c6f51c609 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -13,7 +13,6 @@
 #include <linux/interrupt.h>
 #include <linux/aer.h>
 
-#define QLCNIC_MAX_TX_QUEUES		1
 #define RSS_HASHTYPE_IP_TCP		0x3
 #define QLC_83XX_FW_MBX_CMD		0
 
@@ -268,20 +267,18 @@ int qlcnic_83xx_wrt_reg_indirect(struct qlcnic_adapter *adapter, ulong addr,
 	}
 }
 
-int qlcnic_83xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr, int txq)
+int qlcnic_83xx_setup_intr(struct qlcnic_adapter *adapter)
 {
 	int err, i, num_msix;
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
 
-	if (!num_intr)
-		num_intr = QLCNIC_DEF_NUM_STS_DESC_RINGS;
-	num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
-					      num_intr));
+	num_msix = adapter->drv_sds_rings;
+
 	/* account for AEN interrupt MSI-X based interrupts */
 	num_msix += 1;
 
 	if (!(adapter->flags & QLCNIC_TX_INTR_SHARED))
-		num_msix += adapter->max_drv_tx_rings;
+		num_msix += adapter->drv_tx_rings;
 
 	err = qlcnic_enable_msix(adapter, num_msix);
 	if (err == -ENOMEM)
@@ -986,14 +983,14 @@ static int qlcnic_83xx_add_rings(struct qlcnic_adapter *adapter)
 
 	sds_mbx_size = sizeof(struct qlcnic_sds_mbx);
 	context_id = recv_ctx->context_id;
-	num_sds = (adapter->max_sds_rings - QLCNIC_MAX_RING_SETS);
+	num_sds = adapter->drv_sds_rings - QLCNIC_MAX_SDS_RINGS;
 	ahw->hw_ops->alloc_mbx_args(&cmd, adapter,
 				    QLCNIC_CMD_ADD_RCV_RINGS);
 	cmd.req.arg[1] = 0 | (num_sds << 8) | (context_id << 16);
 
 	/* set up status rings, mbx 2-81 */
 	index = 2;
-	for (i = 8; i < adapter->max_sds_rings; i++) {
+	for (i = 8; i < adapter->drv_sds_rings; i++) {
 		memset(&sds_mbx, 0, sds_mbx_size);
 		sds = &recv_ctx->sds_rings[i];
 		sds->consumer = 0;
@@ -1028,7 +1025,7 @@ static int qlcnic_83xx_add_rings(struct qlcnic_adapter *adapter)
 	mbx_out = (struct qlcnic_add_rings_mbx_out *)&cmd.rsp.arg[1];
 	index = 0;
 	/* status descriptor ring */
-	for (i = 8; i < adapter->max_sds_rings; i++) {
+	for (i = 8; i < adapter->drv_sds_rings; i++) {
 		sds = &recv_ctx->sds_rings[i];
 		sds->crb_sts_consumer = ahw->pci_base0 +
 					mbx_out->host_csmr[index];
@@ -1086,10 +1083,10 @@ int qlcnic_83xx_create_rx_ctx(struct qlcnic_adapter *adapter)
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
 	num_rds = adapter->max_rds_rings;
 
-	if (adapter->max_sds_rings <= QLCNIC_MAX_RING_SETS)
-		num_sds = adapter->max_sds_rings;
+	if (adapter->drv_sds_rings <= QLCNIC_MAX_SDS_RINGS)
+		num_sds = adapter->drv_sds_rings;
 	else
-		num_sds = QLCNIC_MAX_RING_SETS;
+		num_sds = QLCNIC_MAX_SDS_RINGS;
 
 	sds_mbx_size = sizeof(struct qlcnic_sds_mbx);
 	rds_mbx_size = sizeof(struct qlcnic_rds_mbx);
@@ -1190,7 +1187,7 @@ int qlcnic_83xx_create_rx_ctx(struct qlcnic_adapter *adapter)
 		sds->crb_intr_mask = ahw->pci_base0 + intr_mask;
 	}
 
-	if (adapter->max_sds_rings > QLCNIC_MAX_RING_SETS)
+	if (adapter->drv_sds_rings > QLCNIC_MAX_SDS_RINGS)
 		err = qlcnic_83xx_add_rings(adapter);
 out:
 	qlcnic_free_mbx_args(&cmd);
@@ -1246,9 +1243,9 @@ int qlcnic_83xx_create_tx_ctx(struct qlcnic_adapter *adapter,
 	mbx.size = tx->num_desc;
 	if (adapter->flags & QLCNIC_MSIX_ENABLED) {
 		if (!(adapter->flags & QLCNIC_TX_INTR_SHARED))
-			msix_vector = adapter->max_sds_rings + ring;
+			msix_vector = adapter->drv_sds_rings + ring;
 		else
-			msix_vector = adapter->max_sds_rings - 1;
+			msix_vector = adapter->drv_sds_rings - 1;
 		msix_id = ahw->intr_tbl[msix_vector].id;
 	} else {
 		msix_id = QLCRDX(ahw, QLCNIC_DEF_INT_ID);
@@ -1271,7 +1268,8 @@ int qlcnic_83xx_create_tx_ctx(struct qlcnic_adapter *adapter,
 		qlcnic_pf_set_interface_id_create_tx_ctx(adapter, &temp);
 
 	cmd.req.arg[1] = QLCNIC_CAP0_LEGACY_CONTEXT;
-	cmd.req.arg[5] = QLCNIC_MAX_TX_QUEUES | temp;
+	cmd.req.arg[5] = QLCNIC_SINGLE_RING | temp;
+
 	buf = &cmd.req.arg[6];
 	memcpy(buf, &mbx, sizeof(struct qlcnic_tx_mbx));
 	/* send the mailbox command*/
@@ -1286,7 +1284,7 @@ int qlcnic_83xx_create_tx_ctx(struct qlcnic_adapter *adapter,
 	tx->ctx_id = mbx_out->ctx_id;
 	if ((adapter->flags & QLCNIC_MSIX_ENABLED) &&
 	    !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
-		intr_mask = ahw->intr_tbl[adapter->max_sds_rings + ring].src;
+		intr_mask = ahw->intr_tbl[adapter->drv_sds_rings + ring].src;
 		tx->crb_intr_mask = ahw->pci_base0 + intr_mask;
 	}
 	dev_info(&adapter->pdev->dev, "Tx Context[0x%x] Created, state:0x%x\n",
@@ -1297,7 +1295,7 @@ out:
 }
 
 static int qlcnic_83xx_diag_alloc_res(struct net_device *netdev, int test,
-				      int num_sds_ring)
+				      u8 num_sds_ring)
 {
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
 	struct qlcnic_host_sds_ring *sds_ring;
@@ -1313,7 +1311,7 @@ static int qlcnic_83xx_diag_alloc_res(struct net_device *netdev, int test,
 
 	qlcnic_detach(adapter);
 
-	adapter->max_sds_rings = 1;
+	adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 	adapter->ahw->diag_test = test;
 	adapter->ahw->linkup = 0;
 
@@ -1327,7 +1325,7 @@ static int qlcnic_83xx_diag_alloc_res(struct net_device *netdev, int test,
 	if (ret) {
 		qlcnic_detach(adapter);
 		if (adapter_state == QLCNIC_ADAPTER_UP_MAGIC) {
-			adapter->max_sds_rings = num_sds_ring;
+			adapter->drv_sds_rings = num_sds_ring;
 			qlcnic_attach(adapter);
 		}
 		netif_device_attach(netdev);
@@ -1340,7 +1338,7 @@ static int qlcnic_83xx_diag_alloc_res(struct net_device *netdev, int test,
 	}
 
 	if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
-		for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+		for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
 			sds_ring = &adapter->recv_ctx->sds_rings[ring];
 			qlcnic_83xx_enable_intr(adapter, sds_ring);
 		}
@@ -1361,7 +1359,7 @@ static int qlcnic_83xx_diag_alloc_res(struct net_device *netdev, int test,
 }
 
 static void qlcnic_83xx_diag_free_res(struct net_device *netdev,
-					int max_sds_rings)
+				      u8 drv_sds_rings)
 {
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
 	struct qlcnic_host_sds_ring *sds_ring;
@@ -1369,7 +1367,7 @@ static void qlcnic_83xx_diag_free_res(struct net_device *netdev,
 
 	clear_bit(__QLCNIC_DEV_UP, &adapter->state);
 	if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
-		for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+		for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
 			sds_ring = &adapter->recv_ctx->sds_rings[ring];
 			qlcnic_83xx_disable_intr(adapter, sds_ring);
 			if (!(adapter->flags & QLCNIC_MSIX_ENABLED))
@@ -1393,7 +1391,7 @@ static void qlcnic_83xx_diag_free_res(struct net_device *netdev,
 		}
 	}
 	adapter->ahw->diag_test = 0;
-	adapter->max_sds_rings = max_sds_rings;
+	adapter->drv_sds_rings = drv_sds_rings;
 
 	if (qlcnic_attach(adapter))
 		goto out;
@@ -1655,7 +1653,8 @@ int qlcnic_83xx_loopback_test(struct net_device *netdev, u8 mode)
 {
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
-	int ret = 0, loop = 0, max_sds_rings = adapter->max_sds_rings;
+	u8 drv_sds_rings = adapter->drv_sds_rings;
+	int ret = 0, loop = 0;
 
 	if (ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
 		netdev_warn(netdev,
@@ -1677,7 +1676,7 @@ int qlcnic_83xx_loopback_test(struct net_device *netdev, u8 mode)
 		    mode == QLCNIC_ILB_MODE ? "internal" : "external");
 
 	ret = qlcnic_83xx_diag_alloc_res(netdev, QLCNIC_LOOPBACK_TEST,
-					 max_sds_rings);
+					 drv_sds_rings);
 	if (ret)
 		goto fail_diag_alloc;
 
@@ -1715,10 +1714,10 @@ int qlcnic_83xx_loopback_test(struct net_device *netdev, u8 mode)
 	qlcnic_83xx_clear_lb_mode(adapter, mode);
 
 free_diag_res:
-	qlcnic_83xx_diag_free_res(netdev, max_sds_rings);
+	qlcnic_83xx_diag_free_res(netdev, drv_sds_rings);
 
 fail_diag_alloc:
-	adapter->max_sds_rings = max_sds_rings;
+	adapter->drv_sds_rings = drv_sds_rings;
 	qlcnic_release_diag_lock(adapter);
 	return ret;
 }
@@ -3303,10 +3302,10 @@ int qlcnic_83xx_interrupt_test(struct net_device *netdev)
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
 	struct qlcnic_cmd_args cmd;
+	u8 val, drv_sds_rings = adapter->drv_sds_rings;
 	u32 data;
 	u16 intrpt_id, id;
-	u8 val;
-	int ret, max_sds_rings = adapter->max_sds_rings;
+	int ret;
 
 	if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
 		netdev_info(netdev, "Device is resetting\n");
@@ -3319,7 +3318,7 @@ int qlcnic_83xx_interrupt_test(struct net_device *netdev)
 	}
 
 	ret = qlcnic_83xx_diag_alloc_res(netdev, QLCNIC_INTERRUPT_TEST,
-					 max_sds_rings);
+					 drv_sds_rings);
 	if (ret)
 		goto fail_diag_irq;
 
@@ -3356,10 +3355,10 @@ int qlcnic_83xx_interrupt_test(struct net_device *netdev)
 
 done:
 	qlcnic_free_mbx_args(&cmd);
-	qlcnic_83xx_diag_free_res(netdev, max_sds_rings);
+	qlcnic_83xx_diag_free_res(netdev, drv_sds_rings);
 
 fail_diag_irq:
-	adapter->max_sds_rings = max_sds_rings;
+	adapter->drv_sds_rings = drv_sds_rings;
 	qlcnic_release_diag_lock(adapter);
 	return ret;
 }
@@ -3513,7 +3512,7 @@ int qlcnic_83xx_resume(struct qlcnic_adapter *adapter)
 	if (err)
 		return err;
 
-	if (ahw->nic_mode == QLC_83XX_VIRTUAL_NIC_MODE) {
+	if (ahw->nic_mode == QLCNIC_VNIC_MODE) {
 		if (ahw->op_mode == QLCNIC_MGMT_FUNC) {
 			qlcnic_83xx_set_vnic_opmode(adapter);
 		} else {
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
index 9f4e4c4ab521..4cae6caa6bfa 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.h
@@ -61,7 +61,6 @@
 #define QLC_83XX_HOST_SDS_MBX_IDX		8
 
 #define QLCNIC_HOST_RDS_MBX_IDX			88
-#define QLCNIC_MAX_RING_SETS			8
 
 /* Pause control registers */
 #define QLC_83XX_SRE_SHIM_REG		0x0D200284
@@ -183,8 +182,8 @@ struct qlcnic_rcv_mbx_out {
 	u8	num_pci_func;
 	u8	state;
 #endif
-	u32	host_csmr[QLCNIC_MAX_RING_SETS];
-	struct __host_producer_mbx host_prod[QLCNIC_MAX_RING_SETS];
+	u32	host_csmr[QLCNIC_MAX_SDS_RINGS];
+	struct __host_producer_mbx host_prod[QLCNIC_MAX_SDS_RINGS];
 } __packed;
 
 struct qlcnic_add_rings_mbx_out {
@@ -197,8 +196,8 @@ struct qlcnic_add_rings_mbx_out {
 	u8	sts_num;
 	u8	rcv_num;
 #endif
-	u32  host_csmr[QLCNIC_MAX_RING_SETS];
-	struct __host_producer_mbx host_prod[QLCNIC_MAX_RING_SETS];
+	u32  host_csmr[QLCNIC_MAX_SDS_RINGS];
+	struct __host_producer_mbx host_prod[QLCNIC_MAX_SDS_RINGS];
 } __packed;
 
 /* Transmit context mailbox inbox registers
@@ -415,8 +414,6 @@ enum qlcnic_83xx_states {
 #define QLC_83XX_GET_VLAN_ALIGN_CAPABILITY(val)	(val & 0x4000)
 #define QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(val)	(val & 0x20000)
 #define QLC_83XX_ESWITCH_CAPABILITY			BIT_23
-#define QLC_83XX_VIRTUAL_NIC_MODE			0xFF
-#define QLC_83XX_DEFAULT_MODE				0x0
 #define QLC_83XX_SRIOV_MODE				0x1
 #define QLCNIC_BRDTYPE_83XX_10G			0x0083
 
@@ -524,7 +521,7 @@ enum qlc_83xx_ext_regs {
 /* 83xx funcitons */
 int qlcnic_83xx_get_fw_version(struct qlcnic_adapter *);
 int qlcnic_83xx_issue_cmd(struct qlcnic_adapter *, struct qlcnic_cmd_args *);
-int qlcnic_83xx_setup_intr(struct qlcnic_adapter *, u8, int);
+int qlcnic_83xx_setup_intr(struct qlcnic_adapter *);
 void qlcnic_83xx_get_func_no(struct qlcnic_adapter *);
 int qlcnic_83xx_cam_lock(struct qlcnic_adapter *);
 void qlcnic_83xx_cam_unlock(struct qlcnic_adapter *);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
index 4a8a3f1b0345..5682a40eb8a7 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
@@ -902,7 +902,7 @@ static int qlcnic_83xx_idc_need_reset_state(struct qlcnic_adapter *adapter)
 		qlcnic_83xx_idc_update_audit_reg(adapter, 0, 1);
 		set_bit(__QLCNIC_RESETTING, &adapter->state);
 		clear_bit(QLC_83XX_MBX_READY, &mbx->status);
-		if (adapter->ahw->nic_mode == QLC_83XX_VIRTUAL_NIC_MODE)
+		if (adapter->ahw->nic_mode == QLCNIC_VNIC_MODE)
 			qlcnic_83xx_disable_vnic_mode(adapter, 1);
 
 		if (qlcnic_check_diag_status(adapter)) {
@@ -2033,6 +2033,8 @@ int qlcnic_83xx_get_nic_configuration(struct qlcnic_adapter *adapter)
 	ahw->max_mac_filters = nic_info.max_mac_filters;
 	ahw->max_mtu = nic_info.max_mtu;
 
+	adapter->max_tx_rings = ahw->max_tx_ques;
+	adapter->max_sds_rings = ahw->max_rx_ques;
 	/* eSwitch capability indicates vNIC mode.
 	 * vNIC and SRIOV are mutually exclusive operational modes.
 	 * If SR-IOV capability is detected, SR-IOV physical function
@@ -2045,7 +2047,7 @@ int qlcnic_83xx_get_nic_configuration(struct qlcnic_adapter *adapter)
 		return QLC_83XX_DEFAULT_OPMODE;
 
 	if (ahw->capabilities & QLC_83XX_ESWITCH_CAPABILITY)
-		return QLC_83XX_VIRTUAL_NIC_MODE;
+		return QLCNIC_VNIC_MODE;
 
 	return QLC_83XX_DEFAULT_OPMODE;
 }
@@ -2059,15 +2061,20 @@ int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter)
 	if (ret == -EIO)
 		return -EIO;
 
-	if (ret == QLC_83XX_VIRTUAL_NIC_MODE) {
-		ahw->nic_mode = QLC_83XX_VIRTUAL_NIC_MODE;
+	if (ret == QLCNIC_VNIC_MODE) {
+		ahw->nic_mode = QLCNIC_VNIC_MODE;
+
 		if (qlcnic_83xx_config_vnic_opmode(adapter))
 			return -EIO;
 
+		adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
+		adapter->max_tx_rings = QLCNIC_SINGLE_RING;
 	} else if (ret == QLC_83XX_DEFAULT_OPMODE) {
-		ahw->nic_mode = QLC_83XX_DEFAULT_MODE;
+		ahw->nic_mode = QLCNIC_DEFAULT_MODE;
 		adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver;
 		ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
+		adapter->max_sds_rings = ahw->max_rx_ques;
+		adapter->max_tx_rings = QLCNIC_SINGLE_RING;
 	} else {
 		return -EIO;
 	}
@@ -2170,6 +2177,19 @@ static int qlcnic_83xx_get_fw_info(struct qlcnic_adapter *adapter)
 	return err;
 }
 
+static void qlcnic_83xx_init_rings(struct qlcnic_adapter *adapter)
+{
+	adapter->max_tx_rings = QLCNIC_MAX_TX_RINGS;
+	adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
+
+	qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
+
+	/* compute and set drv sds rings */
+	if (adapter->ahw->msix_supported)
+		qlcnic_set_sds_ring_count(adapter, QLCNIC_DEF_SDS_RINGS);
+	else
+		qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
+}
 
 int qlcnic_83xx_init(struct qlcnic_adapter *adapter, int pci_using_dac)
 {
@@ -2178,6 +2198,9 @@ int qlcnic_83xx_init(struct qlcnic_adapter *adapter, int pci_using_dac)
 	int err = 0;
 
 	ahw->msix_supported = !!qlcnic_use_msi_x;
+
+	qlcnic_83xx_init_rings(adapter);
+
 	err = qlcnic_83xx_init_mailbox_work(adapter);
 	if (err)
 		goto exit;
@@ -2209,7 +2232,7 @@ int qlcnic_83xx_init(struct qlcnic_adapter *adapter, int pci_using_dac)
 	if (err)
 		goto detach_mbx;
 
-	err = qlcnic_setup_intr(adapter, 0, 0);
+	err = qlcnic_setup_intr(adapter);
 	if (err) {
 		dev_err(&adapter->pdev->dev, "Failed to setup interrupt\n");
 		goto disable_intr;
@@ -2231,6 +2254,7 @@ int qlcnic_83xx_init(struct qlcnic_adapter *adapter, int pci_using_dac)
 	if (err)
 		goto disable_mbx_intr;
 
+
 	/* Perform operating mode specific initialization */
 	err = adapter->nic_ops->init_driver(adapter);
 	if (err)
@@ -2267,7 +2291,7 @@ void qlcnic_83xx_aer_stop_poll_work(struct qlcnic_adapter *adapter)
 	clear_bit(QLC_83XX_MBX_READY, &idc->status);
 	cancel_delayed_work_sync(&adapter->fw_work);
 
-	if (ahw->nic_mode == QLC_83XX_VIRTUAL_NIC_MODE)
+	if (ahw->nic_mode == QLCNIC_VNIC_MODE)
 		qlcnic_83xx_disable_vnic_mode(adapter, 1);
 
 	qlcnic_83xx_idc_detach_driver(adapter);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
index 86850dd633a1..859cb161fc63 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ctx.c
@@ -270,7 +270,7 @@ int qlcnic_82xx_fw_cmd_create_rx_ctx(struct qlcnic_adapter *adapter)
 	int err;
 
 	nrds_rings = adapter->max_rds_rings;
-	nsds_rings = adapter->max_sds_rings;
+	nsds_rings = adapter->drv_sds_rings;
 
 	rq_size = SIZEOF_HOSTRQ_RX(struct qlcnic_hostrq_rx_ctx, nrds_rings,
 				   nsds_rings);
@@ -475,7 +475,7 @@ int qlcnic_82xx_fw_cmd_create_tx_ctx(struct qlcnic_adapter *adapter,
 
 	if (qlcnic_check_multi_tx(adapter) &&
 	    !adapter->ahw->diag_test) {
-		temp_nsds_rings = adapter->max_sds_rings;
+		temp_nsds_rings = adapter->drv_sds_rings;
 		index = temp_nsds_rings + ring;
 		msix_id = ahw->intr_tbl[index].id;
 		prq->msi_index = cpu_to_le16(msix_id);
@@ -512,7 +512,7 @@ int qlcnic_82xx_fw_cmd_create_tx_ctx(struct qlcnic_adapter *adapter,
 		if (qlcnic_check_multi_tx(adapter) &&
 		    !adapter->ahw->diag_test &&
 		    (adapter->flags & QLCNIC_MSIX_ENABLED)) {
-			index = adapter->max_sds_rings + ring;
+			index = adapter->drv_sds_rings + ring;
 			intr_mask = ahw->intr_tbl[index].src;
 			tx_ring->crb_intr_mask = ahw->pci_base0 + intr_mask;
 		}
@@ -582,7 +582,7 @@ int qlcnic_alloc_hw_resources(struct qlcnic_adapter *adapter)
 
 	recv_ctx = adapter->recv_ctx;
 
-	for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+	for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
 		tx_ring = &adapter->tx_ring[ring];
 		ptr = (__le32 *)dma_alloc_coherent(&pdev->dev, sizeof(u32),
 						   &tx_ring->hw_cons_phys_addr,
@@ -616,7 +616,7 @@ int qlcnic_alloc_hw_resources(struct qlcnic_adapter *adapter)
 
 	}
 
-	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+	for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
 		sds_ring = &recv_ctx->sds_rings[ring];
 
 		addr = dma_alloc_coherent(&adapter->pdev->dev,
@@ -664,7 +664,7 @@ int qlcnic_fw_create_ctx(struct qlcnic_adapter *dev)
 	if (err)
 		goto err_out;
 
-	for (ring = 0; ring < dev->max_drv_tx_rings; ring++) {
+	for (ring = 0; ring < dev->drv_tx_rings; ring++) {
 		err = qlcnic_fw_cmd_create_tx_ctx(dev,
 						  &dev->tx_ring[ring],
 						  ring);
@@ -703,7 +703,7 @@ void qlcnic_fw_destroy_ctx(struct qlcnic_adapter *adapter)
 
 	if (test_and_clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state)) {
 		qlcnic_fw_cmd_del_rx_ctx(adapter);
-		for (ring = 0; ring < adapter->max_drv_tx_rings; ring++)
+		for (ring = 0; ring < adapter->drv_tx_rings; ring++)
 			qlcnic_fw_cmd_del_tx_ctx(adapter,
 						 &adapter->tx_ring[ring]);
 
@@ -733,7 +733,7 @@ void qlcnic_free_hw_resources(struct qlcnic_adapter *adapter)
 
 	recv_ctx = adapter->recv_ctx;
 
-	for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+	for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
 		tx_ring = &adapter->tx_ring[ring];
 		if (tx_ring->hw_consumer != NULL) {
 			dma_free_coherent(&adapter->pdev->dev, sizeof(u32),
@@ -764,7 +764,7 @@ void qlcnic_free_hw_resources(struct qlcnic_adapter *adapter)
 		}
 	}
 
-	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+	for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
 		sds_ring = &recv_ctx->sds_rings[ring];
 
 		if (sds_ring->desc_head != NULL) {
@@ -895,6 +895,8 @@ int qlcnic_82xx_get_nic_info(struct qlcnic_adapter *adapter,
 		npar_info->max_rx_ques = le16_to_cpu(nic_info->max_rx_ques);
 		npar_info->capabilities = le32_to_cpu(nic_info->capabilities);
 		npar_info->max_mtu = le16_to_cpu(nic_info->max_mtu);
+		adapter->max_tx_rings = npar_info->max_tx_ques;
+		adapter->max_sds_rings = npar_info->max_rx_ques;
 	}
 
 	qlcnic_free_mbx_args(&cmd);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
index 9b6dd984fe00..225743cc82eb 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
@@ -226,9 +226,9 @@ static const u32 ext_diag_registers[] = {
 
 static inline int qlcnic_get_ring_regs_len(struct qlcnic_adapter *adapter)
 {
-	int ring_regs_cnt = (adapter->max_drv_tx_rings * 5) +
+	int ring_regs_cnt = (adapter->drv_tx_rings * 5) +
 			    (adapter->max_rds_rings * 2) +
-			    (adapter->max_sds_rings * 3) + 5;
+			    (adapter->drv_sds_rings * 3) + 5;
 	return ring_regs_cnt * sizeof(u32);
 }
 
@@ -530,8 +530,8 @@ qlcnic_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *p)
 	/* Marker btw regs and TX ring count */
 	regs_buff[i++] = 0xFFEFCDAB;
 
-	regs_buff[i++] = adapter->max_drv_tx_rings; /* No. of TX ring */
-	for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+	regs_buff[i++] = adapter->drv_tx_rings; /* No. of TX ring */
+	for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
 		tx_ring = &adapter->tx_ring[ring];
 		regs_buff[i++] = le32_to_cpu(*(tx_ring->hw_consumer));
 		regs_buff[i++] = tx_ring->sw_consumer;
@@ -550,8 +550,8 @@ qlcnic_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *p)
 		regs_buff[i++] = rds_rings->producer;
 	}
 
-	regs_buff[i++] = adapter->max_sds_rings; /* No. of SDS ring */
-	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+	regs_buff[i++] = adapter->drv_sds_rings; /* No. of SDS ring */
+	for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
 		sds_ring = &(recv_ctx->sds_rings[ring]);
 		regs_buff[i++] = readl(sds_ring->crb_sts_consumer);
 		regs_buff[i++] = sds_ring->consumer;
@@ -664,46 +664,88 @@ qlcnic_set_ringparam(struct net_device *dev,
 	return qlcnic_reset_context(adapter);
 }
 
+static int qlcnic_validate_ring_count(struct qlcnic_adapter *adapter,
+				      u8 rx_ring, u8 tx_ring)
+{
+	if (rx_ring != 0) {
+		if (rx_ring > adapter->max_sds_rings) {
+			netdev_err(adapter->netdev, "Invalid ring count, SDS ring count %d should not be greater than max %d driver sds rings.\n",
+				   rx_ring, adapter->max_sds_rings);
+			return -EINVAL;
+		}
+	}
+
+	 if (tx_ring != 0) {
+		if (qlcnic_82xx_check(adapter) &&
+		    (tx_ring > adapter->max_tx_rings)) {
+			netdev_err(adapter->netdev,
+				   "Invalid ring count, Tx ring count %d should not be greater than max %d driver Tx rings.\n",
+				   tx_ring, adapter->max_tx_rings);
+			return -EINVAL;
+		}
+
+		if (qlcnic_83xx_check(adapter) &&
+		    (tx_ring > QLCNIC_SINGLE_RING)) {
+			netdev_err(adapter->netdev,
+				   "Invalid ring count, Tx ring count %d should not be greater than %d driver Tx rings.\n",
+				   tx_ring, QLCNIC_SINGLE_RING);
+			 return -EINVAL;
+		}
+	}
+
+	return 0;
+}
+
 static void qlcnic_get_channels(struct net_device *dev,
 		struct ethtool_channels *channel)
 {
 	struct qlcnic_adapter *adapter = netdev_priv(dev);
-	int min;
-
-	min = min_t(int, adapter->ahw->max_rx_ques, num_online_cpus());
-	channel->max_rx = rounddown_pow_of_two(min);
-	channel->max_tx = min_t(int, QLCNIC_MAX_TX_RINGS, num_online_cpus());
 
-	channel->rx_count = adapter->max_sds_rings;
-	channel->tx_count = adapter->max_drv_tx_rings;
+	channel->max_rx = adapter->max_sds_rings;
+	channel->max_tx = adapter->max_tx_rings;
+	channel->rx_count = adapter->drv_sds_rings;
+	channel->tx_count = adapter->drv_tx_rings;
 }
 
 static int qlcnic_set_channels(struct net_device *dev,
-		struct ethtool_channels *channel)
+			       struct ethtool_channels *channel)
 {
 	struct qlcnic_adapter *adapter = netdev_priv(dev);
 	int err;
-	int txq = 0;
 
 	if (channel->other_count || channel->combined_count)
 		return -EINVAL;
 
+	err = qlcnic_validate_ring_count(adapter, channel->rx_count,
+					 channel->tx_count);
+	if (err)
+		return err;
+
 	if (channel->rx_count) {
-		err = qlcnic_validate_max_rss(adapter, channel->rx_count);
-		if (err)
+		err = qlcnic_validate_rings(adapter, channel->rx_count,
+					    QLCNIC_RX_QUEUE);
+		if (err) {
+			netdev_err(dev, "Unable to configure %u SDS rings\n",
+				   channel->rx_count);
 			return err;
+		}
 	}
 
 	if (qlcnic_82xx_check(adapter) && channel->tx_count) {
-		err = qlcnic_validate_max_tx_rings(adapter, channel->tx_count);
-		if (err)
+		err = qlcnic_validate_rings(adapter, channel->tx_count,
+					    QLCNIC_TX_QUEUE);
+		if (err) {
+			netdev_err(dev, "Unable to configure %u Tx rings\n",
+				   channel->tx_count);
 			return err;
-		txq = channel->tx_count;
+		}
 	}
 
-	err = qlcnic_set_max_rss(adapter, channel->rx_count, txq);
-	netdev_info(dev, "allocated 0x%x sds rings and  0x%x tx rings\n",
-		    adapter->max_sds_rings, adapter->max_drv_tx_rings);
+	err = qlcnic_setup_rings(adapter, channel->rx_count,
+				 channel->tx_count);
+	netdev_info(dev, "Allocated %d SDS rings and %d Tx rings\n",
+		    adapter->drv_sds_rings, adapter->drv_tx_rings);
+
 	return err;
 }
 
@@ -905,7 +947,7 @@ static int qlcnic_irq_test(struct net_device *netdev)
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
 	struct qlcnic_cmd_args cmd;
-	int ret, max_sds_rings = adapter->max_sds_rings;
+	int ret, drv_sds_rings = adapter->drv_sds_rings;
 
 	if (qlcnic_83xx_check(adapter))
 		return qlcnic_83xx_interrupt_test(netdev);
@@ -934,10 +976,10 @@ done:
 	qlcnic_free_mbx_args(&cmd);
 
 free_diag_res:
-	qlcnic_diag_free_res(netdev, max_sds_rings);
+	qlcnic_diag_free_res(netdev, drv_sds_rings);
 
 clear_diag_irq:
-	adapter->max_sds_rings = max_sds_rings;
+	adapter->drv_sds_rings = drv_sds_rings;
 	clear_bit(__QLCNIC_RESETTING, &adapter->state);
 
 	return ret;
@@ -1013,8 +1055,8 @@ int qlcnic_do_lb_test(struct qlcnic_adapter *adapter, u8 mode)
 int qlcnic_loopback_test(struct net_device *netdev, u8 mode)
 {
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
-	int max_drv_tx_rings = adapter->max_drv_tx_rings;
-	int max_sds_rings = adapter->max_sds_rings;
+	int drv_tx_rings = adapter->drv_tx_rings;
+	int drv_sds_rings = adapter->drv_sds_rings;
 	struct qlcnic_host_sds_ring *sds_ring;
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
 	int loop = 0;
@@ -1069,11 +1111,11 @@ int qlcnic_loopback_test(struct net_device *netdev, u8 mode)
 	qlcnic_clear_lb_mode(adapter, mode);
 
  free_res:
-	qlcnic_diag_free_res(netdev, max_sds_rings);
+	qlcnic_diag_free_res(netdev, drv_sds_rings);
 
  clear_it:
-	adapter->max_sds_rings = max_sds_rings;
-	adapter->max_drv_tx_rings = max_drv_tx_rings;
+	adapter->drv_sds_rings = drv_sds_rings;
+	adapter->drv_tx_rings = drv_tx_rings;
 	clear_bit(__QLCNIC_RESETTING, &adapter->state);
 	return ret;
 }
@@ -1127,7 +1169,7 @@ qlcnic_get_strings(struct net_device *dev, u32 stringset, u8 *data)
 		break;
 	case ETH_SS_STATS:
 		num_stats = ARRAY_SIZE(qlcnic_tx_queue_stats_strings);
-		for (i = 0; i < adapter->max_drv_tx_rings; i++) {
+		for (i = 0; i < adapter->drv_tx_rings; i++) {
 			for (index = 0; index < num_stats; index++) {
 				sprintf(data, "tx_queue_%d %s", i,
 					qlcnic_tx_queue_stats_strings[index]);
@@ -1233,7 +1275,7 @@ static void qlcnic_update_stats(struct qlcnic_adapter *adapter)
 	struct qlcnic_host_tx_ring *tx_ring;
 	int ring;
 
-	for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+	for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
 		tx_ring = &adapter->tx_ring[ring];
 		adapter->stats.xmit_on += tx_ring->tx_stats.xmit_on;
 		adapter->stats.xmit_off += tx_ring->tx_stats.xmit_off;
@@ -1268,10 +1310,10 @@ static void qlcnic_get_ethtool_stats(struct net_device *dev,
 	int index, ret, length, size, tx_size, ring;
 	char *p;
 
-	tx_size = adapter->max_drv_tx_rings * QLCNIC_TX_STATS_LEN;
+	tx_size = adapter->drv_tx_rings * QLCNIC_TX_STATS_LEN;
 
 	memset(data, 0, tx_size * sizeof(u64));
-	for (ring = 0, index = 0; ring < adapter->max_drv_tx_rings; ring++) {
+	for (ring = 0, index = 0; ring < adapter->drv_tx_rings; ring++) {
 		if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 			tx_ring = &adapter->tx_ring[ring];
 			data = qlcnic_fill_tx_queue_stats(data, tx_ring);
@@ -1320,7 +1362,7 @@ static int qlcnic_set_led(struct net_device *dev,
 			  enum ethtool_phys_id_state state)
 {
 	struct qlcnic_adapter *adapter = netdev_priv(dev);
-	int max_sds_rings = adapter->max_sds_rings;
+	int drv_sds_rings = adapter->drv_sds_rings;
 	int err = -EIO, active = 1;
 
 	if (qlcnic_83xx_check(adapter))
@@ -1378,7 +1420,7 @@ static int qlcnic_set_led(struct net_device *dev,
 	}
 
 	if (test_and_clear_bit(__QLCNIC_DIAG_RES_ALLOC, &adapter->state))
-		qlcnic_diag_free_res(dev, max_sds_rings);
+		qlcnic_diag_free_res(dev, drv_sds_rings);
 
 	if (!active || err)
 		clear_bit(__QLCNIC_LED_ENABLE, &adapter->state);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
index 272c356cf9b2..13303e7d1ed7 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.h
@@ -146,6 +146,12 @@ struct qlcnic_mailbox_metadata {
 #define QLCNIC_MBX_PORT_RSP_OK	0x1a
 #define QLCNIC_MBX_ASYNC_EVENT	BIT_15
 
+/* Set HW Tx ring limit for 82xx adapter. */
+#define QLCNIC_MAX_HW_TX_RINGS		8
+#define QLCNIC_MAX_HW_VNIC_TX_RINGS	4
+#define QLCNIC_MAX_TX_RINGS		8
+#define QLCNIC_MAX_SDS_RINGS		8
+
 struct qlcnic_pci_info;
 struct qlcnic_info;
 struct qlcnic_cmd_args;
@@ -176,7 +182,7 @@ int qlcnic_82xx_set_lb_mode(struct qlcnic_adapter *, u8);
 void qlcnic_82xx_write_crb(struct qlcnic_adapter *, char *, loff_t, size_t);
 void qlcnic_82xx_read_crb(struct qlcnic_adapter *, char *, loff_t, size_t);
 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *, u32);
-int qlcnic_82xx_setup_intr(struct qlcnic_adapter *, u8, int);
+int qlcnic_82xx_setup_intr(struct qlcnic_adapter *);
 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *);
 int qlcnic_82xx_issue_cmd(struct qlcnic_adapter *adapter,
 			  struct qlcnic_cmd_args *);
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_init.c
index 66c26cf7a2b8..e9c21e5d0ca9 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_init.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_init.c
@@ -236,7 +236,7 @@ int qlcnic_alloc_sw_resources(struct qlcnic_adapter *adapter)
 		spin_lock_init(&rds_ring->lock);
 	}
 
-	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+	for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
 		sds_ring = &recv_ctx->sds_rings[ring];
 		sds_ring->irq = adapter->msix_entries[ring].vector;
 		sds_ring->adapter = adapter;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
index df31be7a7aba..1c07ec250f23 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
@@ -787,6 +787,9 @@ static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter,
 	struct net_device *netdev = adapter->netdev;
 	struct qlcnic_skb_frag *frag;
 
+	if (!spin_trylock(&adapter->tx_clean_lock))
+		return 1;
+
 	sw_consumer = tx_ring->sw_consumer;
 	hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
 
@@ -840,6 +843,7 @@ static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter,
 	 */
 	hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
 	done = (sw_consumer == hw_consumer);
+	spin_unlock(&adapter->tx_clean_lock);
 
 	return done;
 }
@@ -1459,18 +1463,18 @@ int qlcnic_82xx_napi_add(struct qlcnic_adapter *adapter,
 	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
 	struct qlcnic_host_tx_ring *tx_ring;
 
-	if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
+	if (qlcnic_alloc_sds_rings(recv_ctx, adapter->drv_sds_rings))
 		return -ENOMEM;
 
-	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+	for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
 		sds_ring = &recv_ctx->sds_rings[ring];
 		if (qlcnic_check_multi_tx(adapter) &&
 		    !adapter->ahw->diag_test &&
-		    (adapter->max_drv_tx_rings > 1)) {
+		    (adapter->drv_tx_rings > QLCNIC_SINGLE_RING)) {
 			netif_napi_add(netdev, &sds_ring->napi, qlcnic_rx_poll,
 				       NAPI_POLL_WEIGHT);
 		} else {
-			if (ring == (adapter->max_sds_rings - 1))
+			if (ring == (adapter->drv_sds_rings - 1))
 				netif_napi_add(netdev, &sds_ring->napi,
 					       qlcnic_poll,
 					       NAPI_POLL_WEIGHT);
@@ -1487,7 +1491,7 @@ int qlcnic_82xx_napi_add(struct qlcnic_adapter *adapter,
 	}
 
 	if (qlcnic_check_multi_tx(adapter) && !adapter->ahw->diag_test) {
-		for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+		for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
 			tx_ring = &adapter->tx_ring[ring];
 			netif_napi_add(netdev, &tx_ring->napi, qlcnic_tx_poll,
 				       NAPI_POLL_WEIGHT);
@@ -1504,7 +1508,7 @@ void qlcnic_82xx_napi_del(struct qlcnic_adapter *adapter)
 	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
 	struct qlcnic_host_tx_ring *tx_ring;
 
-	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+	for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
 		sds_ring = &recv_ctx->sds_rings[ring];
 		netif_napi_del(&sds_ring->napi);
 	}
@@ -1512,7 +1516,7 @@ void qlcnic_82xx_napi_del(struct qlcnic_adapter *adapter)
 	qlcnic_free_sds_rings(adapter->recv_ctx);
 
 	if (qlcnic_check_multi_tx(adapter) && !adapter->ahw->diag_test) {
-		for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+		for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
 			tx_ring = &adapter->tx_ring[ring];
 			netif_napi_del(&tx_ring->napi);
 		}
@@ -1531,7 +1535,7 @@ void qlcnic_82xx_napi_enable(struct qlcnic_adapter *adapter)
 	if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
 		return;
 
-	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+	for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
 		sds_ring = &recv_ctx->sds_rings[ring];
 		napi_enable(&sds_ring->napi);
 		qlcnic_enable_int(sds_ring);
@@ -1540,8 +1544,8 @@ void qlcnic_82xx_napi_enable(struct qlcnic_adapter *adapter)
 	if (qlcnic_check_multi_tx(adapter) &&
 	    (adapter->flags & QLCNIC_MSIX_ENABLED) &&
 	    !adapter->ahw->diag_test &&
-	    (adapter->max_drv_tx_rings > 1)) {
-		for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+	    (adapter->drv_tx_rings > QLCNIC_SINGLE_RING)) {
+		for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
 			tx_ring = &adapter->tx_ring[ring];
 			napi_enable(&tx_ring->napi);
 			qlcnic_enable_tx_intr(adapter, tx_ring);
@@ -1559,7 +1563,7 @@ void qlcnic_82xx_napi_disable(struct qlcnic_adapter *adapter)
 	if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
 		return;
 
-	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+	for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
 		sds_ring = &recv_ctx->sds_rings[ring];
 		qlcnic_disable_int(sds_ring);
 		napi_synchronize(&sds_ring->napi);
@@ -1569,7 +1573,7 @@ void qlcnic_82xx_napi_disable(struct qlcnic_adapter *adapter)
 	if ((adapter->flags & QLCNIC_MSIX_ENABLED) &&
 	    !adapter->ahw->diag_test &&
 	    qlcnic_check_multi_tx(adapter)) {
-		for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+		for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
 			tx_ring = &adapter->tx_ring[ring];
 			qlcnic_disable_tx_int(adapter, tx_ring);
 			napi_synchronize(&tx_ring->napi);
@@ -1907,7 +1911,7 @@ void qlcnic_83xx_napi_enable(struct qlcnic_adapter *adapter)
 	if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
 		return;
 
-	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+	for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
 		sds_ring = &recv_ctx->sds_rings[ring];
 		napi_enable(&sds_ring->napi);
 		if (adapter->flags & QLCNIC_MSIX_ENABLED)
@@ -1916,7 +1920,7 @@ void qlcnic_83xx_napi_enable(struct qlcnic_adapter *adapter)
 
 	if ((adapter->flags & QLCNIC_MSIX_ENABLED) &&
 	    !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
-		for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+		for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
 			tx_ring = &adapter->tx_ring[ring];
 			napi_enable(&tx_ring->napi);
 			qlcnic_83xx_enable_tx_intr(adapter, tx_ring);
@@ -1934,7 +1938,7 @@ void qlcnic_83xx_napi_disable(struct qlcnic_adapter *adapter)
 	if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
 		return;
 
-	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+	for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
 		sds_ring = &recv_ctx->sds_rings[ring];
 		if (adapter->flags & QLCNIC_MSIX_ENABLED)
 			qlcnic_83xx_disable_intr(adapter, sds_ring);
@@ -1944,7 +1948,7 @@ void qlcnic_83xx_napi_disable(struct qlcnic_adapter *adapter)
 
 	if ((adapter->flags & QLCNIC_MSIX_ENABLED) &&
 	    !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
-		for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+		for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
 			tx_ring = &adapter->tx_ring[ring];
 			qlcnic_83xx_disable_tx_intr(adapter, tx_ring);
 			napi_synchronize(&tx_ring->napi);
@@ -1961,10 +1965,10 @@ int qlcnic_83xx_napi_add(struct qlcnic_adapter *adapter,
 	struct qlcnic_host_tx_ring *tx_ring;
 	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
 
-	if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
+	if (qlcnic_alloc_sds_rings(recv_ctx, adapter->drv_sds_rings))
 		return -ENOMEM;
 
-	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+	for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
 		sds_ring = &recv_ctx->sds_rings[ring];
 		if (adapter->flags & QLCNIC_MSIX_ENABLED) {
 			if (!(adapter->flags & QLCNIC_TX_INTR_SHARED))
@@ -1990,7 +1994,7 @@ int qlcnic_83xx_napi_add(struct qlcnic_adapter *adapter,
 
 	if ((adapter->flags & QLCNIC_MSIX_ENABLED) &&
 	    !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
-		for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+		for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
 			tx_ring = &adapter->tx_ring[ring];
 			netif_napi_add(netdev, &tx_ring->napi,
 				       qlcnic_83xx_msix_tx_poll,
@@ -2008,7 +2012,7 @@ void qlcnic_83xx_napi_del(struct qlcnic_adapter *adapter)
 	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
 	struct qlcnic_host_tx_ring *tx_ring;
 
-	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+	for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
 		sds_ring = &recv_ctx->sds_rings[ring];
 		netif_napi_del(&sds_ring->napi);
 	}
@@ -2017,7 +2021,7 @@ void qlcnic_83xx_napi_del(struct qlcnic_adapter *adapter)
 
 	if ((adapter->flags & QLCNIC_MSIX_ENABLED) &&
 	    !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
-		for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+		for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
 			tx_ring = &adapter->tx_ring[ring];
 			netif_napi_del(&tx_ring->napi);
 		}
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index fab5f3b6be4b..007b7df73510 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -548,36 +548,75 @@ static struct qlcnic_hardware_ops qlcnic_hw_ops = {
 	.io_resume			= qlcnic_82xx_io_resume,
 };
 
-static void qlcnic_get_multiq_capability(struct qlcnic_adapter *adapter)
+static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
 {
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
-	int num_tx_q;
 
-	if (ahw->msix_supported &&
+	if (qlcnic_82xx_check(adapter) &&
 	    (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
-		num_tx_q = min_t(int, QLCNIC_DEF_NUM_TX_RINGS,
-				 num_online_cpus());
-		if (num_tx_q > 1) {
-			test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE,
-					 &adapter->state);
-			adapter->max_drv_tx_rings = num_tx_q;
-		}
+		test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
+		return 0;
 	} else {
-		adapter->max_drv_tx_rings = 1;
+		return 1;
 	}
 }
 
+static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
+			    int queue_type)
+{
+	int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
+
+	if (queue_type == QLCNIC_RX_QUEUE)
+		max_rings = adapter->max_sds_rings;
+	else if (queue_type == QLCNIC_TX_QUEUE)
+		max_rings = adapter->max_tx_rings;
+
+	num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
+					      max_rings));
+
+	if (ring_cnt > num_rings)
+		return num_rings;
+	else
+		return ring_cnt;
+}
+
+void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
+{
+	/* 83xx adapter does not have max_tx_rings intialized in probe */
+	if (adapter->max_tx_rings)
+		adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
+							 QLCNIC_TX_QUEUE);
+	else
+		adapter->drv_tx_rings = tx_cnt;
+
+	dev_info(&adapter->pdev->dev, "Set %d Tx rings\n",
+		 adapter->drv_tx_rings);
+}
+
+void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
+{
+	/* 83xx adapter does not have max_sds_rings intialized in probe */
+	if (adapter->max_sds_rings)
+		adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
+							  QLCNIC_RX_QUEUE);
+	else
+		adapter->drv_sds_rings = rx_cnt;
+
+	dev_info(&adapter->pdev->dev, "Set %d SDS rings\n",
+		 adapter->drv_sds_rings);
+}
+
 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 {
 	struct pci_dev *pdev = adapter->pdev;
-	int max_tx_rings, max_sds_rings, tx_vector;
+	int drv_tx_rings, drv_sds_rings, tx_vector;
 	int err = -1, i;
 
 	if (adapter->flags & QLCNIC_TX_INTR_SHARED) {
-		max_tx_rings = 0;
+		drv_tx_rings = 0;
 		tx_vector = 0;
 	} else {
-		max_tx_rings = adapter->max_drv_tx_rings;
+		drv_tx_rings = adapter->drv_tx_rings;
 		tx_vector = 1;
 	}
 
@@ -589,7 +628,7 @@ int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 			return -ENOMEM;
 	}
 
-	adapter->max_sds_rings = 1;
+	adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 	adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
 
 	if (adapter->ahw->msix_supported) {
@@ -602,18 +641,18 @@ int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 			if (qlcnic_83xx_check(adapter)) {
 				adapter->ahw->num_msix = num_msix;
 				/* subtract mail box and tx ring vectors */
-				adapter->max_sds_rings = num_msix -
-							 max_tx_rings - 1;
+				adapter->drv_sds_rings = num_msix -
+							 drv_tx_rings - 1;
 			} else {
 				adapter->ahw->num_msix = num_msix;
 				if (qlcnic_check_multi_tx(adapter) &&
 				    !adapter->ahw->diag_test &&
-				    (adapter->max_drv_tx_rings > 1))
-					max_sds_rings = num_msix - max_tx_rings;
+				    (adapter->drv_tx_rings > 1))
+					drv_sds_rings = num_msix - drv_tx_rings;
 				else
-					max_sds_rings = num_msix;
+					drv_sds_rings = num_msix;
 
-				adapter->max_sds_rings = max_sds_rings;
+				adapter->drv_sds_rings = drv_sds_rings;
 			}
 			dev_info(&pdev->dev, "using msi-x interrupts\n");
 			return err;
@@ -624,13 +663,13 @@ int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
 			if (qlcnic_83xx_check(adapter)) {
 				if (err < (QLC_83XX_MINIMUM_VECTOR - tx_vector))
 					return err;
-				err -= (max_tx_rings + 1);
+				err -= drv_tx_rings + 1;
 				num_msix = rounddown_pow_of_two(err);
-				num_msix += (max_tx_rings + 1);
+				num_msix += drv_tx_rings + 1;
 			} else {
 				num_msix = rounddown_pow_of_two(err);
 				if (qlcnic_check_multi_tx(adapter))
-					num_msix += max_tx_rings;
+					num_msix += drv_tx_rings;
 			}
 
 			if (num_msix) {
@@ -683,25 +722,14 @@ static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
 	return err;
 }
 
-int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr, int txq)
+int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
 {
-	struct qlcnic_hardware_context *ahw = adapter->ahw;
 	int num_msix, err = 0;
 
-	if (!num_intr)
-		num_intr = QLCNIC_DEF_NUM_STS_DESC_RINGS;
+	num_msix = adapter->drv_sds_rings;
 
-	if (ahw->msix_supported) {
-		num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
-						num_intr));
-		if (qlcnic_check_multi_tx(adapter)) {
-			if (txq)
-				adapter->max_drv_tx_rings = txq;
-			num_msix += adapter->max_drv_tx_rings;
-		}
-	} else {
-		num_msix = 1;
-	}
+	if (qlcnic_check_multi_tx(adapter))
+		num_msix += adapter->drv_tx_rings;
 
 	err = qlcnic_enable_msix(adapter, num_msix);
 	if (err == -ENOMEM)
@@ -1140,14 +1168,18 @@ qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
 	adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
 	adapter->ahw->max_mtu = nic_info.max_mtu;
 
-	/* Disable NPAR for 83XX */
-	if (qlcnic_83xx_check(adapter))
-		return err;
-
-	if (adapter->ahw->capabilities & BIT_6)
+	if (adapter->ahw->capabilities & BIT_6) {
 		adapter->flags |= QLCNIC_ESWITCH_ENABLED;
-	else
+		adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
+		adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
+		adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
+
+		dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
+	} else {
+		adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
+		adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
 		adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
+	}
 
 	return err;
 }
@@ -1295,6 +1327,8 @@ qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
 				"HAL Version: %d, Privileged function\n",
 				 adapter->ahw->fw_hal_version);
 		}
+	} else {
+		adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
 	}
 
 	adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
@@ -1554,7 +1588,7 @@ qlcnic_request_irq(struct qlcnic_adapter *adapter)
 		if (qlcnic_82xx_check(adapter) ||
 		    (qlcnic_83xx_check(adapter) &&
 		     (adapter->flags & QLCNIC_MSIX_ENABLED))) {
-			num_sds_rings = adapter->max_sds_rings;
+			num_sds_rings = adapter->drv_sds_rings;
 			for (ring = 0; ring < num_sds_rings; ring++) {
 				sds_ring = &recv_ctx->sds_rings[ring];
 				if (qlcnic_82xx_check(adapter) &&
@@ -1588,7 +1622,7 @@ qlcnic_request_irq(struct qlcnic_adapter *adapter)
 		     (adapter->flags & QLCNIC_MSIX_ENABLED) &&
 		     !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
 			handler = qlcnic_msix_tx_intr;
-			for (ring = 0; ring < adapter->max_drv_tx_rings;
+			for (ring = 0; ring < adapter->drv_tx_rings;
 			     ring++) {
 				tx_ring = &adapter->tx_ring[ring];
 				snprintf(tx_ring->name, sizeof(tx_ring->name),
@@ -1616,7 +1650,7 @@ qlcnic_free_irq(struct qlcnic_adapter *adapter)
 		if (qlcnic_82xx_check(adapter) ||
 		    (qlcnic_83xx_check(adapter) &&
 		     (adapter->flags & QLCNIC_MSIX_ENABLED))) {
-			for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+			for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
 				sds_ring = &recv_ctx->sds_rings[ring];
 				free_irq(sds_ring->irq, sds_ring);
 			}
@@ -1625,7 +1659,7 @@ qlcnic_free_irq(struct qlcnic_adapter *adapter)
 		     !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
 		    (qlcnic_82xx_check(adapter) &&
 		     qlcnic_check_multi_tx(adapter))) {
-			for (ring = 0; ring < adapter->max_drv_tx_rings;
+			for (ring = 0; ring < adapter->drv_tx_rings;
 			     ring++) {
 				tx_ring = &adapter->tx_ring[ring];
 				if (tx_ring->irq)
@@ -1679,7 +1713,7 @@ int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
 
 	adapter->ahw->linkup = 0;
 
-	if (adapter->max_sds_rings > 1)
+	if (adapter->drv_sds_rings > 1)
 		qlcnic_config_rss(adapter, 1);
 
 	qlcnic_config_intr_coalesce(adapter);
@@ -1721,6 +1755,7 @@ void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
 	if (qlcnic_sriov_vf_check(adapter))
 		qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
 	smp_mb();
+	spin_lock(&adapter->tx_clean_lock);
 	netif_carrier_off(netdev);
 	adapter->ahw->linkup = 0;
 	netif_tx_disable(netdev);
@@ -1739,8 +1774,9 @@ void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
 
 	qlcnic_reset_rx_buffers_list(adapter);
 
-	for (ring = 0; ring < adapter->max_drv_tx_rings; ring++)
+	for (ring = 0; ring < adapter->drv_tx_rings; ring++)
 		qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
+	spin_unlock(&adapter->tx_clean_lock);
 }
 
 /* Usage: During suspend and firmware recovery module */
@@ -1816,16 +1852,16 @@ void qlcnic_detach(struct qlcnic_adapter *adapter)
 	adapter->is_up = 0;
 }
 
-void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
+void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
 {
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
 	struct qlcnic_host_sds_ring *sds_ring;
-	int max_tx_rings = adapter->max_drv_tx_rings;
+	int drv_tx_rings = adapter->drv_tx_rings;
 	int ring;
 
 	clear_bit(__QLCNIC_DEV_UP, &adapter->state);
 	if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
-		for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+		for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
 			sds_ring = &adapter->recv_ctx->sds_rings[ring];
 			qlcnic_disable_int(sds_ring);
 		}
@@ -1836,8 +1872,8 @@ void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
 	qlcnic_detach(adapter);
 
 	adapter->ahw->diag_test = 0;
-	adapter->max_sds_rings = max_sds_rings;
-	adapter->max_drv_tx_rings = max_tx_rings;
+	adapter->drv_sds_rings = drv_sds_rings;
+	adapter->drv_tx_rings = drv_tx_rings;
 
 	if (qlcnic_attach(adapter))
 		goto out;
@@ -1903,10 +1939,10 @@ int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
 
 	qlcnic_detach(adapter);
 
-	adapter->max_sds_rings = 1;
+	adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
+	adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
 	adapter->ahw->diag_test = test;
 	adapter->ahw->linkup = 0;
-	adapter->max_drv_tx_rings = 1;
 
 	ret = qlcnic_attach(adapter);
 	if (ret) {
@@ -1927,7 +1963,7 @@ int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
 	}
 
 	if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
-		for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+		for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
 			sds_ring = &adapter->recv_ctx->sds_rings[ring];
 			qlcnic_enable_int(sds_ring);
 		}
@@ -2100,7 +2136,7 @@ void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
 	int ring;
 	struct qlcnic_host_tx_ring *tx_ring;
 
-	for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+	for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
 		tx_ring = &adapter->tx_ring[ring];
 		if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
 			vfree(tx_ring->cmd_buf_arr);
@@ -2118,14 +2154,14 @@ int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
 	struct qlcnic_host_tx_ring *tx_ring;
 	struct qlcnic_cmd_buffer *cmd_buf_arr;
 
-	tx_ring = kcalloc(adapter->max_drv_tx_rings,
+	tx_ring = kcalloc(adapter->drv_tx_rings,
 			  sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
 	if (tx_ring == NULL)
 		return -ENOMEM;
 
 	adapter->tx_ring = tx_ring;
 
-	for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+	for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
 		tx_ring = &adapter->tx_ring[ring];
 		tx_ring->num_desc = adapter->num_txd;
 		tx_ring->txq = netdev_get_tx_queue(netdev, ring);
@@ -2140,11 +2176,11 @@ int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
 
 	if (qlcnic_83xx_check(adapter) ||
 	    (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
-		for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+		for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
 			tx_ring = &adapter->tx_ring[ring];
 			tx_ring->adapter = adapter;
 			if (adapter->flags & QLCNIC_MSIX_ENABLED) {
-				index = adapter->max_sds_rings + ring;
+				index = adapter->drv_sds_rings + ring;
 				vector = adapter->msix_entries[index].vector;
 				tx_ring->irq = vector;
 			}
@@ -2263,6 +2299,7 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	rwlock_init(&adapter->ahw->crb_lock);
 	mutex_init(&adapter->ahw->mem_lock);
 
+	spin_lock_init(&adapter->tx_clean_lock);
 	INIT_LIST_HEAD(&adapter->mac_list);
 
 	qlcnic_register_dcb(adapter);
@@ -2277,20 +2314,21 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 			goto err_out_maintenance_mode;
 		}
 
-		qlcnic_get_multiq_capability(adapter);
-
-		if ((adapter->ahw->act_pci_func > 2) &&
-		    qlcnic_check_multi_tx(adapter)) {
-			adapter->max_drv_tx_rings = QLCNIC_DEF_NUM_TX_RINGS;
-			dev_info(&adapter->pdev->dev,
-				 "vNIC mode enabled, Set max TX rings = %d\n",
-				 adapter->max_drv_tx_rings);
+		/* compute and set default and max tx/sds rings */
+		if (adapter->ahw->msix_supported) {
+			if (qlcnic_check_multi_tx_capability(adapter) == 1)
+				qlcnic_set_tx_ring_count(adapter,
+							 QLCNIC_SINGLE_RING);
+			else
+				qlcnic_set_tx_ring_count(adapter,
+							 QLCNIC_DEF_TX_RINGS);
+			qlcnic_set_sds_ring_count(adapter,
+						  QLCNIC_DEF_SDS_RINGS);
+		} else {
+			qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
+			qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
 		}
 
-		if (!qlcnic_check_multi_tx(adapter)) {
-			clear_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
-			adapter->max_drv_tx_rings = 1;
-		}
 		err = qlcnic_setup_idc_param(adapter);
 		if (err)
 			goto err_out_free_hw;
@@ -2301,13 +2339,10 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 		if (dcb && qlcnic_dcb_attach(dcb))
 			qlcnic_clear_dcb_ops(dcb);
-
 	} else if (qlcnic_83xx_check(adapter)) {
-		adapter->max_drv_tx_rings = 1;
 		qlcnic_83xx_check_vf(adapter, ent);
 		adapter->portnum = adapter->ahw->pci_func;
 		err = qlcnic_83xx_init(adapter, pci_using_dac);
-
 		if (err) {
 			switch (err) {
 			case -ENOTRECOVERABLE:
@@ -2351,7 +2386,7 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 			 "Device does not support MSI interrupts\n");
 
 	if (qlcnic_82xx_check(adapter)) {
-		err = qlcnic_setup_intr(adapter, 0, 0);
+		err = qlcnic_setup_intr(adapter);
 		if (err) {
 			dev_err(&pdev->dev, "Failed to setup interrupt\n");
 			goto err_out_disable_msi;
@@ -2722,7 +2757,7 @@ static void qlcnic_tx_timeout(struct net_device *netdev)
 						      QLCNIC_FORCE_FW_DUMP_KEY);
 	} else {
 		netdev_info(netdev, "Tx timeout, reset adapter context.\n");
-		for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
+		for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
 			tx_ring = &adapter->tx_ring[ring];
 			netdev_info(netdev, "Tx ring=%d\n", ring);
 			netdev_info(netdev,
@@ -2850,7 +2885,7 @@ static void qlcnic_poll_controller(struct net_device *netdev)
 	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
 
 	disable_irq(adapter->irq);
-	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+	for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
 		sds_ring = &recv_ctx->sds_rings[ring];
 		qlcnic_intr(adapter->irq, sds_ring);
 	}
@@ -3517,7 +3552,7 @@ static int qlcnic_attach_func(struct pci_dev *pdev)
 	qlcnic_clr_drv_state(adapter);
 	kfree(adapter->msix_entries);
 	adapter->msix_entries = NULL;
-	err = qlcnic_setup_intr(adapter, 0, 0);
+	err = qlcnic_setup_intr(adapter);
 
 	if (err) {
 		kfree(adapter->msix_entries);
@@ -3662,130 +3697,94 @@ qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
 	return err;
 }
 
-int qlcnic_validate_max_tx_rings(struct qlcnic_adapter *adapter, u32 txq)
+int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
+			  int queue_type)
 {
 	struct net_device *netdev = adapter->netdev;
-	u8 max_hw = QLCNIC_MAX_TX_RINGS;
-	u32 max_allowed;
+	u8 max_hw_rings = 0;
+	char buf[8];
+	int cur_rings;
+
+	if (queue_type == QLCNIC_RX_QUEUE) {
+		max_hw_rings = adapter->max_sds_rings;
+		cur_rings = adapter->drv_sds_rings;
+		strcpy(buf, "SDS");
+	} else if (queue_type == QLCNIC_TX_QUEUE) {
+		if (qlcnic_83xx_check(adapter))
+			max_hw_rings = QLCNIC_SINGLE_RING;
+		else
+			max_hw_rings = adapter->max_tx_rings;
 
-	if (!qlcnic_use_msi_x && !qlcnic_use_msi) {
-		netdev_err(netdev, "No Multi TX-Q support in INT-x mode\n");
-		return -EINVAL;
+		cur_rings = adapter->drv_tx_rings;
+		strcpy(buf, "Tx");
 	}
 
-	if (!qlcnic_check_multi_tx(adapter)) {
-		netdev_err(netdev, "No Multi TX-Q support\n");
+	if (!qlcnic_use_msi_x && !qlcnic_use_msi) {
+		netdev_err(netdev, "No RSS/TSS support in INT-x mode\n");
 		return -EINVAL;
 	}
 
-	if (txq > QLCNIC_MAX_TX_RINGS) {
-		netdev_err(netdev, "Invalid ring count\n");
+	if (adapter->flags & QLCNIC_MSI_ENABLED) {
+		netdev_err(netdev, "No RSS/TSS support in MSI mode\n");
 		return -EINVAL;
 	}
 
-	max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
-						 num_online_cpus()));
-	if ((txq > max_allowed) || !is_power_of_2(txq)) {
-		if (!is_power_of_2(txq))
-			netdev_err(netdev,
-				   "TX queue should be a power of 2\n");
-		if (txq > num_online_cpus())
-			netdev_err(netdev,
-				   "Tx queue should not be higher than [%u], number of online CPUs in the system\n",
-				   num_online_cpus());
-		netdev_err(netdev, "Unable to configure %u Tx rings\n", txq);
+	if (ring_cnt < 2) {
+		netdev_err(netdev,
+			   "%s rings value should not be lower than 2\n", buf);
 		return -EINVAL;
 	}
 
-	return 0;
-}
-
-int qlcnic_validate_max_rss(struct qlcnic_adapter *adapter,
-				__u32 val)
-{
-	struct net_device *netdev = adapter->netdev;
-	u8 max_hw = adapter->ahw->max_rx_ques;
-	u32 max_allowed;
-
-	if (!qlcnic_use_msi_x && !qlcnic_use_msi) {
-		netdev_err(netdev, "No RSS support in INT-x mode\n");
+	if (!is_power_of_2(ring_cnt)) {
+		netdev_err(netdev, "%s rings value should be a power of 2\n",
+			   buf);
 		return -EINVAL;
 	}
 
-	if (val > QLCNIC_MAX_SDS_RINGS) {
-		netdev_err(netdev, "RSS value should not be higher than %u\n",
-			   QLCNIC_MAX_SDS_RINGS);
-		return -EINVAL;
+	if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
+	    !qlcnic_check_multi_tx(adapter)) {
+			netdev_err(netdev, "No Multi Tx queue support\n");
+			return -EINVAL;
 	}
 
-	max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
-						 num_online_cpus()));
-	if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
-		if (!is_power_of_2(val))
-			netdev_err(netdev, "RSS value should be a power of 2\n");
-
-		if (val < 2)
-			netdev_err(netdev, "RSS value should not be lower than 2\n");
-
-		if (val > max_hw)
-			netdev_err(netdev,
-				   "RSS value should not be higher than[%u], the max RSS rings supported by the adapter\n",
-				   max_hw);
-
-		if (val > num_online_cpus())
-			netdev_err(netdev,
-				   "RSS value should not be higher than[%u], number of online CPUs in the system\n",
-				   num_online_cpus());
-
-		netdev_err(netdev, "Unable to configure %u RSS rings\n", val);
-
+	if (ring_cnt > num_online_cpus()) {
+		netdev_err(netdev,
+			   "%s value[%u] should not be higher than, number of online CPUs\n",
+			   buf, num_online_cpus());
 		return -EINVAL;
 	}
+
 	return 0;
 }
 
-int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, int txq)
+int qlcnic_setup_rings(struct qlcnic_adapter *adapter, u8 rx_cnt, u8 tx_cnt)
 {
-	int err;
 	struct net_device *netdev = adapter->netdev;
-	int num_msix;
+	int err;
 
 	if (test_bit(__QLCNIC_RESETTING, &adapter->state))
 		return -EBUSY;
 
-	if (qlcnic_82xx_check(adapter) && !qlcnic_use_msi_x &&
-	    !qlcnic_use_msi) {
-		netdev_err(netdev, "No RSS support in INT-x mode\n");
-		return -EINVAL;
-	}
-
 	netif_device_detach(netdev);
 	if (netif_running(netdev))
 		__qlcnic_down(adapter, netdev);
 
 	qlcnic_detach(adapter);
 
-	if (qlcnic_82xx_check(adapter)) {
-		if (txq != 0)
-			adapter->max_drv_tx_rings = txq;
-
-		if (qlcnic_check_multi_tx(adapter) &&
-		    (txq > adapter->max_drv_tx_rings))
-			num_msix = adapter->max_drv_tx_rings;
-		else
-			num_msix = data;
-	}
-
 	if (qlcnic_83xx_check(adapter)) {
 		qlcnic_83xx_free_mbx_intr(adapter);
 		qlcnic_83xx_enable_mbx_poll(adapter);
 	}
 
-	netif_set_real_num_tx_queues(netdev, adapter->max_drv_tx_rings);
-
 	qlcnic_teardown_intr(adapter);
 
-	err = qlcnic_setup_intr(adapter, data, txq);
+	/* compute and set default and max tx/sds rings */
+	qlcnic_set_tx_ring_count(adapter, tx_cnt);
+	qlcnic_set_sds_ring_count(adapter, rx_cnt);
+
+	netif_set_real_num_tx_queues(netdev, adapter->drv_tx_rings);
+
+	err = qlcnic_setup_intr(adapter);
 	if (err) {
 		kfree(adapter->msix_entries);
 		netdev_err(netdev, "failed to setup interrupt\n");
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
index 8b96e29df30f..21a4b274d2e4 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c
@@ -508,7 +508,11 @@ static int qlcnic_sriov_setup_vf(struct qlcnic_adapter *adapter,
 		dev_warn(&adapter->pdev->dev,
 			 "Device does not support MSI interrupts\n");
 
-	err = qlcnic_setup_intr(adapter, 1, 0);
+	/* compute and set default and max tx/sds rings */
+	qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
+	qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
+
+	err = qlcnic_setup_intr(adapter);
 	if (err) {
 		dev_err(&adapter->pdev->dev, "Failed to setup interrupt\n");
 		goto err_out_disable_msi;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
index e8b1ce64c33a..1a9f8a400e50 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sysfs.c
@@ -156,7 +156,7 @@ static int qlcnic_82xx_store_beacon(struct qlcnic_adapter *adapter,
 				    const char *buf, size_t len)
 {
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
-	int err, max_sds_rings = adapter->max_sds_rings;
+	int err, drv_sds_rings = adapter->drv_sds_rings;
 	u16 beacon;
 	u8 h_beacon_state, b_state, b_rate;
 
@@ -211,7 +211,7 @@ static int qlcnic_82xx_store_beacon(struct qlcnic_adapter *adapter,
 	}
 
 	if (test_and_clear_bit(__QLCNIC_DIAG_RES_ALLOC, &adapter->state))
-		qlcnic_diag_free_res(adapter->netdev, max_sds_rings);
+		qlcnic_diag_free_res(adapter->netdev, drv_sds_rings);
 
 out:
 	if (!ahw->beacon_state)
-- 
cgit 


From 18afc102fdcb95d6c7d57f2967a06f2f8fe3ba4c Mon Sep 17 00:00:00 2001
From: Himanshu Madhani <himanshu.madhani@qlogic.com>
Date: Mon, 4 Nov 2013 13:31:32 -0500
Subject: qlcnic: Enable multiple Tx queue support for 83xx/84xx Series
 adapters.

o 83xx and 84xx firmware is capable of multiple Tx queues.
  This patch will enable multiple Tx queues for 83xx/84xx
  series adapters. Max number of Tx queues supported will be 8.

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c   |  4 ++++
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c | 18 +++++++++++-------
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c   |  2 +-
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c        |  5 +----
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c      |  6 +-----
 5 files changed, 18 insertions(+), 17 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index df6c6f51c609..09810ddd11ec 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -1654,6 +1654,7 @@ int qlcnic_83xx_loopback_test(struct net_device *netdev, u8 mode)
 	struct qlcnic_adapter *adapter = netdev_priv(netdev);
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
 	u8 drv_sds_rings = adapter->drv_sds_rings;
+	u8 drv_tx_rings = adapter->drv_tx_rings;
 	int ret = 0, loop = 0;
 
 	if (ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
@@ -1718,6 +1719,7 @@ free_diag_res:
 
 fail_diag_alloc:
 	adapter->drv_sds_rings = drv_sds_rings;
+	adapter->drv_tx_rings = drv_tx_rings;
 	qlcnic_release_diag_lock(adapter);
 	return ret;
 }
@@ -3303,6 +3305,7 @@ int qlcnic_83xx_interrupt_test(struct net_device *netdev)
 	struct qlcnic_hardware_context *ahw = adapter->ahw;
 	struct qlcnic_cmd_args cmd;
 	u8 val, drv_sds_rings = adapter->drv_sds_rings;
+	u8 drv_tx_rings = adapter->drv_tx_rings;
 	u32 data;
 	u16 intrpt_id, id;
 	int ret;
@@ -3359,6 +3362,7 @@ done:
 
 fail_diag_irq:
 	adapter->drv_sds_rings = drv_sds_rings;
+	adapter->drv_tx_rings = drv_tx_rings;
 	qlcnic_release_diag_lock(adapter);
 	return ret;
 }
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
index 5682a40eb8a7..89208e5b25d6 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_init.c
@@ -2068,13 +2068,13 @@ int qlcnic_83xx_configure_opmode(struct qlcnic_adapter *adapter)
 			return -EIO;
 
 		adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
-		adapter->max_tx_rings = QLCNIC_SINGLE_RING;
+		adapter->max_tx_rings = QLCNIC_MAX_VNIC_TX_RINGS;
 	} else if (ret == QLC_83XX_DEFAULT_OPMODE) {
 		ahw->nic_mode = QLCNIC_DEFAULT_MODE;
 		adapter->nic_ops->init_driver = qlcnic_83xx_init_default_driver;
 		ahw->idc.state_entry = qlcnic_83xx_idc_ready_state_entry;
 		adapter->max_sds_rings = ahw->max_rx_ques;
-		adapter->max_tx_rings = QLCNIC_SINGLE_RING;
+		adapter->max_tx_rings = ahw->max_tx_ques;
 	} else {
 		return -EIO;
 	}
@@ -2179,16 +2179,20 @@ static int qlcnic_83xx_get_fw_info(struct qlcnic_adapter *adapter)
 
 static void qlcnic_83xx_init_rings(struct qlcnic_adapter *adapter)
 {
+	u8 rx_cnt = QLCNIC_DEF_SDS_RINGS;
+	u8 tx_cnt = QLCNIC_DEF_TX_RINGS;
+
 	adapter->max_tx_rings = QLCNIC_MAX_TX_RINGS;
 	adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
 
-	qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
+	if (!adapter->ahw->msix_supported) {
+		rx_cnt = QLCNIC_SINGLE_RING;
+		tx_cnt = QLCNIC_SINGLE_RING;
+	}
 
 	/* compute and set drv sds rings */
-	if (adapter->ahw->msix_supported)
-		qlcnic_set_sds_ring_count(adapter, QLCNIC_DEF_SDS_RINGS);
-	else
-		qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
+	qlcnic_set_tx_ring_count(adapter, tx_cnt);
+	qlcnic_set_sds_ring_count(adapter, rx_cnt);
 }
 
 int qlcnic_83xx_init(struct qlcnic_adapter *adapter, int pci_using_dac)
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
index 225743cc82eb..b36c02fafcfd 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
@@ -731,7 +731,7 @@ static int qlcnic_set_channels(struct net_device *dev,
 		}
 	}
 
-	if (qlcnic_82xx_check(adapter) && channel->tx_count) {
+	if (channel->tx_count) {
 		err = qlcnic_validate_rings(adapter, channel->tx_count,
 					    QLCNIC_TX_QUEUE);
 		if (err) {
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
index 1c07ec250f23..0149c9495347 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_io.c
@@ -581,10 +581,7 @@ netdev_tx_t qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
 			goto drop_packet;
 	}
 
-	if (qlcnic_check_multi_tx(adapter))
-		tx_ring = &adapter->tx_ring[skb_get_queue_mapping(skb)];
-	else
-		tx_ring = &adapter->tx_ring[0];
+	tx_ring = &adapter->tx_ring[skb_get_queue_mapping(skb)];
 	num_txd = tx_ring->num_desc;
 
 	frag_count = skb_shinfo(skb)->nr_frags + 1;
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index 007b7df73510..05c1eef8df13 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -3710,11 +3710,7 @@ int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
 		cur_rings = adapter->drv_sds_rings;
 		strcpy(buf, "SDS");
 	} else if (queue_type == QLCNIC_TX_QUEUE) {
-		if (qlcnic_83xx_check(adapter))
-			max_hw_rings = QLCNIC_SINGLE_RING;
-		else
-			max_hw_rings = adapter->max_tx_rings;
-
+		max_hw_rings = adapter->max_tx_rings;
 		cur_rings = adapter->drv_tx_rings;
 		strcpy(buf, "Tx");
 	}
-- 
cgit 


From db62d7d96af627589d12ee4a05c24cd74c878941 Mon Sep 17 00:00:00 2001
From: Himanshu Madhani <himanshu.madhani@qlogic.com>
Date: Mon, 4 Nov 2013 13:31:33 -0500
Subject: qlcnic: update version to 5.3.52

Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/qlogic/qlcnic/qlcnic.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
index 3109730556be..631ea0ac1cd8 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h
@@ -38,8 +38,8 @@
 
 #define _QLCNIC_LINUX_MAJOR 5
 #define _QLCNIC_LINUX_MINOR 3
-#define _QLCNIC_LINUX_SUBVERSION 51
-#define QLCNIC_LINUX_VERSIONID  "5.3.51"
+#define _QLCNIC_LINUX_SUBVERSION 52
+#define QLCNIC_LINUX_VERSIONID  "5.3.52"
 #define QLCNIC_DRV_IDC_VER  0x01
 #define QLCNIC_DRIVER_VERSION  ((_QLCNIC_LINUX_MAJOR << 16) |\
 		 (_QLCNIC_LINUX_MINOR << 8) | (_QLCNIC_LINUX_SUBVERSION))
-- 
cgit 


From 04d948a9fc7b352b05125bd3d81c565fb8840c56 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 14:18:52 +0100
Subject: net: cdc_mbim: manage_power should always set needs_remote_wakeup
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Reported-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_mbim.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c
index af76aaf08b6b..fbfd67fe6a9a 100644
--- a/drivers/net/usb/cdc_mbim.c
+++ b/drivers/net/usb/cdc_mbim.c
@@ -44,13 +44,11 @@ static int cdc_mbim_manage_power(struct usbnet *dev, int on)
 	if ((on && atomic_add_return(1, &info->pmcount) == 1) || (!on && atomic_dec_and_test(&info->pmcount))) {
 		/* need autopm_get/put here to ensure the usbcore sees the new value */
 		rv = usb_autopm_get_interface(dev->intf);
-		if (rv < 0)
-			goto err;
 		dev->intf->needs_remote_wakeup = on;
-		usb_autopm_put_interface(dev->intf);
+		if (!rv)
+			usb_autopm_put_interface(dev->intf);
 	}
-err:
-	return rv;
+	return 0;
 }
 
 static int cdc_mbim_wdm_manage_power(struct usb_interface *intf, int status)
-- 
cgit 


From 79d9b62ad839f69593e7aa06790a2f1425c02462 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 14:18:53 +0100
Subject: net: qmi_wwan: manage_power should always set needs_remote_wakeup
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Reported-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/qmi_wwan.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index e0a4a2b08e45..5dd0d85e6335 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -149,7 +149,7 @@ static const struct net_device_ops qmi_wwan_netdev_ops = {
 static int qmi_wwan_manage_power(struct usbnet *dev, int on)
 {
 	struct qmi_wwan_state *info = (void *)&dev->data;
-	int rv = 0;
+	int rv;
 
 	dev_dbg(&dev->intf->dev, "%s() pmcount=%d, on=%d\n", __func__,
 		atomic_read(&info->pmcount), on);
@@ -160,13 +160,11 @@ static int qmi_wwan_manage_power(struct usbnet *dev, int on)
 		 * the new value
 		 */
 		rv = usb_autopm_get_interface(dev->intf);
-		if (rv < 0)
-			goto err;
 		dev->intf->needs_remote_wakeup = on;
-		usb_autopm_put_interface(dev->intf);
+		if (!rv)
+			usb_autopm_put_interface(dev->intf);
 	}
-err:
-	return rv;
+	return 0;
 }
 
 static int qmi_wwan_cdc_wdm_manage_power(struct usb_interface *intf, int on)
-- 
cgit 


From a298807b8dbf8b369932f396a6b9984283e25f75 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 14:18:54 +0100
Subject: net: qmi_wwan: no need to check for resume if suspend exists
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Reported-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/qmi_wwan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 5dd0d85e6335..23bdd5b9274d 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -416,7 +416,7 @@ static int qmi_wwan_resume(struct usb_interface *intf)
 	if (ret < 0)
 		goto err;
 	ret = usbnet_resume(intf);
-	if (ret < 0 && callsub && info->subdriver->suspend)
+	if (ret < 0 && callsub)
 		info->subdriver->suspend(intf, PMSG_SUSPEND);
 err:
 	return ret;
-- 
cgit 


From c37ac9b22b6732c0c9dc17076ebe84e841d4eb16 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 14:18:55 +0100
Subject: net: cdc_mbim: no need to check for resume if suspend exists
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Reported-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_mbim.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c
index fbfd67fe6a9a..347e6b926735 100644
--- a/drivers/net/usb/cdc_mbim.c
+++ b/drivers/net/usb/cdc_mbim.c
@@ -410,7 +410,7 @@ static int cdc_mbim_resume(struct usb_interface *intf)
 	if (ret < 0)
 		goto err;
 	ret = usbnet_resume(intf);
-	if (ret < 0 && callsub && info->subdriver->suspend)
+	if (ret < 0 && callsub)
 		info->subdriver->suspend(intf, PMSG_SUSPEND);
 err:
 	return ret;
-- 
cgit 


From e62416e8e4e086652cfc88b88921708964aac3b5 Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Fri, 1 Nov 2013 14:18:56 +0100
Subject: net: cdc_mbim: fixup error return value
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Reported-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_mbim.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/usb/cdc_mbim.c b/drivers/net/usb/cdc_mbim.c
index 347e6b926735..c9f3281506af 100644
--- a/drivers/net/usb/cdc_mbim.c
+++ b/drivers/net/usb/cdc_mbim.c
@@ -369,15 +369,13 @@ error:
 
 static int cdc_mbim_suspend(struct usb_interface *intf, pm_message_t message)
 {
-	int ret = 0;
+	int ret = -ENODEV;
 	struct usbnet *dev = usb_get_intfdata(intf);
 	struct cdc_mbim_state *info = (void *)&dev->data;
 	struct cdc_ncm_ctx *ctx = info->ctx;
 
-	if (ctx == NULL) {
-		ret = -1;
+	if (!ctx)
 		goto error;
-	}
 
 	/*
 	 * Both usbnet_suspend() and subdriver->suspend() MUST return 0
-- 
cgit 


From f3f5a0f8cc40b942f4c0ae117df82eeb65f07d4d Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Mon, 4 Nov 2013 14:38:05 -0500
Subject: NFSv4.2: Fix a mismatch between Linux labeled NFS and the NFSv4.2
 spec

In the spec, the security label attribute id is '80', which means that
it should be bit number 80-64 == 16 in the 3rd word of the bitmap.

Fixes: 4488cc96c581: NFS: Add NFSv4.2 protocol constants
Cc: J. Bruce Fields <bfields@fieldses.org>
Cc: Steve Dickson <steved@redhat.com>
Cc: stable@vger.kernel.org # 3.11+
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 include/linux/nfs4.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index c56fa8fedce9..bfe6c379a24e 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -395,7 +395,7 @@ enum lock_type4 {
 #define FATTR4_WORD1_FS_LAYOUT_TYPES    (1UL << 30)
 #define FATTR4_WORD2_LAYOUT_BLKSIZE     (1UL << 1)
 #define FATTR4_WORD2_MDSTHRESHOLD       (1UL << 4)
-#define FATTR4_WORD2_SECURITY_LABEL     (1UL << 17)
+#define FATTR4_WORD2_SECURITY_LABEL     (1UL << 16)
 
 /* MDS threshold bitmap bits */
 #define THRESHOLD_RD                    (1UL << 0)
-- 
cgit 


From 3b4c5cbf42bda976ab70354e7786a0808265d9d5 Mon Sep 17 00:00:00 2001
From: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Date: Wed, 30 Oct 2013 23:30:19 +0300
Subject: sh_eth: check platform data pointer

Check the platform data pointer before dereferencing it and error out of the
probe() method if it's NULL.

This has additional effect of preventing kernel oops with outdated platform data
containing zero PHY address instead (such as on SolutionEngine7710).

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/renesas/sh_eth.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c
index eaf11e47334f..d256ce19d4de 100644
--- a/drivers/net/ethernet/renesas/sh_eth.c
+++ b/drivers/net/ethernet/renesas/sh_eth.c
@@ -2663,6 +2663,12 @@ static int sh_eth_drv_probe(struct platform_device *pdev)
 	pm_runtime_enable(&pdev->dev);
 	pm_runtime_resume(&pdev->dev);
 
+	if (!pd) {
+		dev_err(&pdev->dev, "no platform data\n");
+		ret = -EINVAL;
+		goto out_release;
+	}
+
 	/* get PHY ID */
 	mdp->phy_id = pd->phy;
 	mdp->phy_interface = pd->phy_interface;
-- 
cgit 


From 9f961a5f6efc87a79571d7166257b36af28ffcfe Mon Sep 17 00:00:00 2001
From: James Ralston <james.d.ralston@intel.com>
Date: Mon, 4 Nov 2013 09:24:58 -0800
Subject: ahci: Add Device IDs for Intel Wildcat Point-LP

This patch adds the AHCI-mode SATA Device IDs for the Intel Wildcat Point-LP PCH.

Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
---
 drivers/ata/ahci.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 9d715ae5ff6b..db9a091da50b 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -292,6 +292,10 @@ static const struct pci_device_id ahci_pci_tbl[] = {
 	{ PCI_VDEVICE(INTEL, 0x8d66), board_ahci }, /* Wellsburg RAID */
 	{ PCI_VDEVICE(INTEL, 0x8d6e), board_ahci }, /* Wellsburg RAID */
 	{ PCI_VDEVICE(INTEL, 0x23a3), board_ahci }, /* Coleto Creek AHCI */
+	{ PCI_VDEVICE(INTEL, 0x9c83), board_ahci }, /* Wildcat Point-LP AHCI */
+	{ PCI_VDEVICE(INTEL, 0x9c85), board_ahci }, /* Wildcat Point-LP RAID */
+	{ PCI_VDEVICE(INTEL, 0x9c87), board_ahci }, /* Wildcat Point-LP RAID */
+	{ PCI_VDEVICE(INTEL, 0x9c8f), board_ahci }, /* Wildcat Point-LP RAID */
 
 	/* JMicron 360/1/3/5/6, match class to avoid IDE function */
 	{ PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
-- 
cgit 


From 162226a1dceaadc4fd61b03fb4ae8be8a1f5863e Mon Sep 17 00:00:00 2001
From: Jack Morgenstein <jackm@dev.mellanox.co.il>
Date: Sun, 3 Nov 2013 10:03:17 +0200
Subject: net/mlx4_core: Fix register/unreg vlan flow

The reg/unreg vlan code was broken:

1. a wrapped function called another wrapped function, causing a deadlock.

2. unregister_vlan called cmd_box instead of cmd_box_imm, leading to
   incorrectly passed parameters.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/port.c | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c b/drivers/net/ethernet/mellanox/mlx4/port.c
index 946e0af5faef..d3d3106f588f 100644
--- a/drivers/net/ethernet/mellanox/mlx4/port.c
+++ b/drivers/net/ethernet/mellanox/mlx4/port.c
@@ -284,7 +284,7 @@ static int mlx4_set_port_vlan_table(struct mlx4_dev *dev, u8 port,
 	memcpy(mailbox->buf, entries, MLX4_VLAN_TABLE_SIZE);
 	in_mod = MLX4_SET_PORT_VLAN_TABLE << 8 | port;
 	err = mlx4_cmd(dev, mailbox->dma, in_mod, 1, MLX4_CMD_SET_PORT,
-		       MLX4_CMD_TIME_CLASS_B, MLX4_CMD_WRAPPED);
+		       MLX4_CMD_TIME_CLASS_B, MLX4_CMD_NATIVE);
 
 	mlx4_free_cmd_mailbox(dev, mailbox);
 
@@ -370,6 +370,9 @@ int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index)
 	u64 out_param = 0;
 	int err;
 
+	if (vlan > 4095)
+		return -EINVAL;
+
 	if (mlx4_is_mfunc(dev)) {
 		set_param_l(&out_param, port);
 		err = mlx4_cmd_imm(dev, vlan, &out_param, RES_VLAN,
@@ -412,18 +415,14 @@ out:
 
 void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, int index)
 {
-	u64 in_param = 0;
-	int err;
+	u64 out_param = 0;
 
 	if (mlx4_is_mfunc(dev)) {
-		set_param_l(&in_param, port);
-		err = mlx4_cmd(dev, in_param, RES_VLAN, RES_OP_RESERVE_AND_MAP,
-			       MLX4_CMD_FREE_RES, MLX4_CMD_TIME_CLASS_A,
-			       MLX4_CMD_WRAPPED);
-		if (!err)
-			mlx4_warn(dev, "Failed freeing vlan at index:%d\n",
-					index);
-
+		set_param_l(&out_param, port);
+		(void) mlx4_cmd_imm(dev, index, &out_param, RES_VLAN,
+				    RES_OP_RESERVE_AND_MAP,
+				    MLX4_CMD_FREE_RES, MLX4_CMD_TIME_CLASS_A,
+				    MLX4_CMD_WRAPPED);
 		return;
 	}
 	__mlx4_unregister_vlan(dev, port, index);
-- 
cgit 


From acddd5dd44d4fd9b45dd5ee69cd8b183052b1cdc Mon Sep 17 00:00:00 2001
From: Jack Morgenstein <jackm@dev.mellanox.co.il>
Date: Sun, 3 Nov 2013 10:03:18 +0200
Subject: net/mlx4_core: Fix reg/unreg vlan/mac to conform to the firmware spec

The functions mlx4_register_vlan, mlx4_unregister_vlan, mlx4_register_mac,
mlx4_unregister_mac all made illegal use of the out_param in multifunc mode
to pass the port number. The firmware spec specifies that the port number
should be passed in bits 8..15 of the input-modifier field for ALLOC_RES and
FREE_RES (sections 20.15.1 and 20.15.2).

For MAC register/unregister, this patch contains workarounds so that guests
running previous kernels continue to work on a new Hypervisor, and guests
running the new kernel will continue to work on old hypervisors.

Vlan registeration capability is still not operational in multifunction mode,
since the vlan wrapper functions are not implemented in this patch.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/port.c          | 45 +++++++++++++++-------
 .../net/ethernet/mellanox/mlx4/resource_tracker.c  | 28 ++++++++------
 include/linux/mlx4/device.h                        |  1 +
 3 files changed, 49 insertions(+), 25 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c b/drivers/net/ethernet/mellanox/mlx4/port.c
index d3d3106f588f..9433c1f6b0d4 100644
--- a/drivers/net/ethernet/mellanox/mlx4/port.c
+++ b/drivers/net/ethernet/mellanox/mlx4/port.c
@@ -178,13 +178,24 @@ EXPORT_SYMBOL_GPL(__mlx4_register_mac);
 int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac)
 {
 	u64 out_param = 0;
-	int err;
+	int err = -EINVAL;
 
 	if (mlx4_is_mfunc(dev)) {
-		set_param_l(&out_param, port);
-		err = mlx4_cmd_imm(dev, mac, &out_param, RES_MAC,
-				   RES_OP_RESERVE_AND_MAP, MLX4_CMD_ALLOC_RES,
-				   MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
+		if (!(dev->flags & MLX4_FLAG_OLD_REG_MAC)) {
+			err = mlx4_cmd_imm(dev, mac, &out_param,
+					   ((u32) port) << 8 | (u32) RES_MAC,
+					   RES_OP_RESERVE_AND_MAP, MLX4_CMD_ALLOC_RES,
+					   MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
+		}
+		if (err && err == -EINVAL && mlx4_is_slave(dev)) {
+			/* retry using old REG_MAC format */
+			set_param_l(&out_param, port);
+			err = mlx4_cmd_imm(dev, mac, &out_param, RES_MAC,
+					   RES_OP_RESERVE_AND_MAP, MLX4_CMD_ALLOC_RES,
+					   MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
+			if (!err)
+				dev->flags |= MLX4_FLAG_OLD_REG_MAC;
+		}
 		if (err)
 			return err;
 
@@ -231,10 +242,18 @@ void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, u64 mac)
 	u64 out_param = 0;
 
 	if (mlx4_is_mfunc(dev)) {
-		set_param_l(&out_param, port);
-		(void) mlx4_cmd_imm(dev, mac, &out_param, RES_MAC,
-				    RES_OP_RESERVE_AND_MAP, MLX4_CMD_FREE_RES,
-				    MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
+		if (!(dev->flags & MLX4_FLAG_OLD_REG_MAC)) {
+			(void) mlx4_cmd_imm(dev, mac, &out_param,
+					    ((u32) port) << 8 | (u32) RES_MAC,
+					    RES_OP_RESERVE_AND_MAP, MLX4_CMD_FREE_RES,
+					    MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
+		} else {
+			/* use old unregister mac format */
+			set_param_l(&out_param, port);
+			(void) mlx4_cmd_imm(dev, mac, &out_param, RES_MAC,
+					    RES_OP_RESERVE_AND_MAP, MLX4_CMD_FREE_RES,
+					    MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
+		}
 		return;
 	}
 	__mlx4_unregister_mac(dev, port, mac);
@@ -374,8 +393,8 @@ int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index)
 		return -EINVAL;
 
 	if (mlx4_is_mfunc(dev)) {
-		set_param_l(&out_param, port);
-		err = mlx4_cmd_imm(dev, vlan, &out_param, RES_VLAN,
+		err = mlx4_cmd_imm(dev, vlan, &out_param,
+				   ((u32) port) << 8 | (u32) RES_VLAN,
 				   RES_OP_RESERVE_AND_MAP, MLX4_CMD_ALLOC_RES,
 				   MLX4_CMD_TIME_CLASS_A, MLX4_CMD_WRAPPED);
 		if (!err)
@@ -418,8 +437,8 @@ void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, int index)
 	u64 out_param = 0;
 
 	if (mlx4_is_mfunc(dev)) {
-		set_param_l(&out_param, port);
-		(void) mlx4_cmd_imm(dev, index, &out_param, RES_VLAN,
+		(void) mlx4_cmd_imm(dev, index, &out_param,
+				    ((u32) port) << 8 | (u32) RES_VLAN,
 				    RES_OP_RESERVE_AND_MAP,
 				    MLX4_CMD_FREE_RES, MLX4_CMD_TIME_CLASS_A,
 				    MLX4_CMD_WRAPPED);
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index dd6876321116..a5aa3be554fe 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
@@ -1443,7 +1443,7 @@ static void rem_slave_macs(struct mlx4_dev *dev, int slave)
 }
 
 static int mac_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
-			 u64 in_param, u64 *out_param)
+			 u64 in_param, u64 *out_param, int in_port)
 {
 	int err = -EINVAL;
 	int port;
@@ -1452,7 +1452,7 @@ static int mac_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 	if (op != RES_OP_RESERVE_AND_MAP)
 		return err;
 
-	port = get_param_l(out_param);
+	port = !in_port ? get_param_l(out_param) : in_port;
 	mac = in_param;
 
 	err = __mlx4_register_mac(dev, port, mac);
@@ -1470,7 +1470,7 @@ static int mac_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 }
 
 static int vlan_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
-			 u64 in_param, u64 *out_param)
+			 u64 in_param, u64 *out_param, int port)
 {
 	return 0;
 }
@@ -1528,7 +1528,7 @@ int mlx4_ALLOC_RES_wrapper(struct mlx4_dev *dev, int slave,
 	int err;
 	int alop = vhcr->op_modifier;
 
-	switch (vhcr->in_modifier) {
+	switch (vhcr->in_modifier & 0xFF) {
 	case RES_QP:
 		err = qp_alloc_res(dev, slave, vhcr->op_modifier, alop,
 				   vhcr->in_param, &vhcr->out_param);
@@ -1556,12 +1556,14 @@ int mlx4_ALLOC_RES_wrapper(struct mlx4_dev *dev, int slave,
 
 	case RES_MAC:
 		err = mac_alloc_res(dev, slave, vhcr->op_modifier, alop,
-				    vhcr->in_param, &vhcr->out_param);
+				    vhcr->in_param, &vhcr->out_param,
+				    (vhcr->in_modifier >> 8) & 0xFF);
 		break;
 
 	case RES_VLAN:
 		err = vlan_alloc_res(dev, slave, vhcr->op_modifier, alop,
-				    vhcr->in_param, &vhcr->out_param);
+				     vhcr->in_param, &vhcr->out_param,
+				     (vhcr->in_modifier >> 8) & 0xFF);
 		break;
 
 	case RES_COUNTER:
@@ -1730,14 +1732,14 @@ static int srq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 }
 
 static int mac_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
-			    u64 in_param, u64 *out_param)
+			    u64 in_param, u64 *out_param, int in_port)
 {
 	int port;
 	int err = 0;
 
 	switch (op) {
 	case RES_OP_RESERVE_AND_MAP:
-		port = get_param_l(out_param);
+		port = !in_port ? get_param_l(out_param) : in_port;
 		mac_del_from_slave(dev, slave, in_param, port);
 		__mlx4_unregister_mac(dev, port, in_param);
 		break;
@@ -1751,7 +1753,7 @@ static int mac_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 }
 
 static int vlan_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
-			    u64 in_param, u64 *out_param)
+			    u64 in_param, u64 *out_param, int port)
 {
 	return 0;
 }
@@ -1803,7 +1805,7 @@ int mlx4_FREE_RES_wrapper(struct mlx4_dev *dev, int slave,
 	int err = -EINVAL;
 	int alop = vhcr->op_modifier;
 
-	switch (vhcr->in_modifier) {
+	switch (vhcr->in_modifier & 0xFF) {
 	case RES_QP:
 		err = qp_free_res(dev, slave, vhcr->op_modifier, alop,
 				  vhcr->in_param);
@@ -1831,12 +1833,14 @@ int mlx4_FREE_RES_wrapper(struct mlx4_dev *dev, int slave,
 
 	case RES_MAC:
 		err = mac_free_res(dev, slave, vhcr->op_modifier, alop,
-				   vhcr->in_param, &vhcr->out_param);
+				   vhcr->in_param, &vhcr->out_param,
+				   (vhcr->in_modifier >> 8) & 0xFF);
 		break;
 
 	case RES_VLAN:
 		err = vlan_free_res(dev, slave, vhcr->op_modifier, alop,
-				   vhcr->in_param, &vhcr->out_param);
+				    vhcr->in_param, &vhcr->out_param,
+				    (vhcr->in_modifier >> 8) & 0xFF);
 		break;
 
 	case RES_COUNTER:
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 9ad0c18495ad..297a16309f00 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -54,6 +54,7 @@ enum {
 	MLX4_FLAG_MASTER	= 1 << 2,
 	MLX4_FLAG_SLAVE		= 1 << 3,
 	MLX4_FLAG_SRIOV		= 1 << 4,
+	MLX4_FLAG_OLD_REG_MAC	= 1 << 6,
 };
 
 enum {
-- 
cgit 


From 2009d0059c084288f060b1ffe3d14229588acb67 Mon Sep 17 00:00:00 2001
From: Jack Morgenstein <jackm@dev.mellanox.co.il>
Date: Sun, 3 Nov 2013 10:03:19 +0200
Subject: net/mlx4_en: Use vlan id instead of vlan index for unregistration

Use of vlan_index created problems unregistering vlans on guests.

In addition, tools delete vlan by tag, not by index, lets follow that.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/cmd.c           |  2 +-
 drivers/net/ethernet/mellanox/mlx4/en_netdev.c     |  6 +----
 drivers/net/ethernet/mellanox/mlx4/mlx4.h          |  2 +-
 drivers/net/ethernet/mellanox/mlx4/port.c          | 27 ++++++++++++----------
 .../net/ethernet/mellanox/mlx4/resource_tracker.c  |  2 +-
 include/linux/mlx4/device.h                        |  2 +-
 6 files changed, 20 insertions(+), 21 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index ae8eb4c4fb6c..887d62576f54 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -1687,7 +1687,7 @@ static void mlx4_master_deactivate_admin_state(struct mlx4_priv *priv, int slave
 		vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
 		if (NO_INDX != vp_oper->vlan_idx) {
 			__mlx4_unregister_vlan(&priv->dev,
-					       port, vp_oper->vlan_idx);
+					       port, vp_oper->state.default_vlan);
 			vp_oper->vlan_idx = NO_INDX;
 		}
 		if (NO_INDX != vp_oper->mac_idx) {
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index 85d91665d400..b5554121aca4 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -417,7 +417,6 @@ static int mlx4_en_vlan_rx_kill_vid(struct net_device *dev,
 	struct mlx4_en_priv *priv = netdev_priv(dev);
 	struct mlx4_en_dev *mdev = priv->mdev;
 	int err;
-	int idx;
 
 	en_dbg(HW, priv, "Killing VID:%d\n", vid);
 
@@ -425,10 +424,7 @@ static int mlx4_en_vlan_rx_kill_vid(struct net_device *dev,
 
 	/* Remove VID from port VLAN filter */
 	mutex_lock(&mdev->state_lock);
-	if (!mlx4_find_cached_vlan(mdev->dev, priv->port, vid, &idx))
-		mlx4_unregister_vlan(mdev->dev, priv->port, idx);
-	else
-		en_dbg(HW, priv, "could not find vid %d in cache\n", vid);
+	mlx4_unregister_vlan(mdev->dev, priv->port, vid);
 
 	if (mdev->device_up && priv->port_up) {
 		err = mlx4_SET_VLAN_FLTR(mdev->dev, priv);
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
index 348bb8c7d9a7..f2ad4f61f58c 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
@@ -1111,7 +1111,7 @@ int mlx4_change_port_types(struct mlx4_dev *dev,
 
 void mlx4_init_mac_table(struct mlx4_dev *dev, struct mlx4_mac_table *table);
 void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table);
-void __mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, int index);
+void __mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, u16 vlan);
 int __mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index);
 
 int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port, int pkey_tbl_sz);
diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c b/drivers/net/ethernet/mellanox/mlx4/port.c
index 9433c1f6b0d4..caaa15470395 100644
--- a/drivers/net/ethernet/mellanox/mlx4/port.c
+++ b/drivers/net/ethernet/mellanox/mlx4/port.c
@@ -406,23 +406,26 @@ int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index)
 }
 EXPORT_SYMBOL_GPL(mlx4_register_vlan);
 
-void __mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, int index)
+void __mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, u16 vlan)
 {
 	struct mlx4_vlan_table *table = &mlx4_priv(dev)->port[port].vlan_table;
+	int index;
 
-	if (index < MLX4_VLAN_REGULAR) {
-		mlx4_warn(dev, "Trying to free special vlan index %d\n", index);
-		return;
+	mutex_lock(&table->mutex);
+	if (mlx4_find_cached_vlan(dev, port, vlan, &index)) {
+		mlx4_warn(dev, "vlan 0x%x is not in the vlan table\n", vlan);
+		goto out;
 	}
 
-	mutex_lock(&table->mutex);
-	if (!table->refs[index]) {
-		mlx4_warn(dev, "No vlan entry for index %d\n", index);
+	if (index < MLX4_VLAN_REGULAR) {
+		mlx4_warn(dev, "Trying to free special vlan index %d\n", index);
 		goto out;
 	}
+
 	if (--table->refs[index]) {
-		mlx4_dbg(dev, "Have more references for index %d,"
-			 "no need to modify vlan table\n", index);
+		mlx4_dbg(dev, "Have %d more references for index %d,"
+			 "no need to modify vlan table\n", table->refs[index],
+			 index);
 		goto out;
 	}
 	table->entries[index] = 0;
@@ -432,19 +435,19 @@ out:
 	mutex_unlock(&table->mutex);
 }
 
-void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, int index)
+void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, u16 vlan)
 {
 	u64 out_param = 0;
 
 	if (mlx4_is_mfunc(dev)) {
-		(void) mlx4_cmd_imm(dev, index, &out_param,
+		(void) mlx4_cmd_imm(dev, vlan, &out_param,
 				    ((u32) port) << 8 | (u32) RES_VLAN,
 				    RES_OP_RESERVE_AND_MAP,
 				    MLX4_CMD_FREE_RES, MLX4_CMD_TIME_CLASS_A,
 				    MLX4_CMD_WRAPPED);
 		return;
 	}
-	__mlx4_unregister_vlan(dev, port, index);
+	__mlx4_unregister_vlan(dev, port, vlan);
 }
 EXPORT_SYMBOL_GPL(mlx4_unregister_vlan);
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index a5aa3be554fe..993a2ef13866 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
@@ -4085,7 +4085,7 @@ void mlx4_vf_immed_vlan_work_handler(struct work_struct *_work)
 	if (work->flags & MLX4_VF_IMMED_VLAN_FLAG_VLAN && !errors &&
 	    NO_INDX != work->orig_vlan_ix)
 		__mlx4_unregister_vlan(&work->priv->dev, work->port,
-				       work->orig_vlan_ix);
+				       work->orig_vlan_id);
 out:
 	kfree(work);
 	return;
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 297a16309f00..e2e92885bdc1 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -1079,7 +1079,7 @@ int mlx4_SET_PORT_SCHEDULER(struct mlx4_dev *dev, u8 port, u8 *tc_tx_bw,
 		u8 *pg, u16 *ratelimit);
 int mlx4_find_cached_vlan(struct mlx4_dev *dev, u8 port, u16 vid, int *idx);
 int mlx4_register_vlan(struct mlx4_dev *dev, u8 port, u16 vlan, int *index);
-void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, int index);
+void mlx4_unregister_vlan(struct mlx4_dev *dev, u8 port, u16 vlan);
 
 int mlx4_map_phys_fmr(struct mlx4_dev *dev, struct mlx4_fmr *fmr, u64 *page_list,
 		      int npages, u64 iova, u32 *lkey, u32 *rkey);
-- 
cgit 


From 4874080dee8a3fd4ebc3aefd68503fa0e130bd12 Mon Sep 17 00:00:00 2001
From: Jack Morgenstein <jackm@dev.mellanox.co.il>
Date: Sun, 3 Nov 2013 10:03:20 +0200
Subject: net/mlx4_core: Resource tracker for reg/unreg vlans

Add resource tracker support for reg/unreg vlans calls done by VFs.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 .../net/ethernet/mellanox/mlx4/resource_tracker.c  | 127 ++++++++++++++++++++-
 1 file changed, 121 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index 993a2ef13866..e18bfff04ced 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
@@ -55,6 +55,14 @@ struct mac_res {
 	u8 port;
 };
 
+struct vlan_res {
+	struct list_head list;
+	u16 vlan;
+	int ref_count;
+	int vlan_index;
+	u8 port;
+};
+
 struct res_common {
 	struct list_head	list;
 	struct rb_node		node;
@@ -266,6 +274,7 @@ static const char *ResourceType(enum mlx4_resource rt)
 	case RES_MPT: return "RES_MPT";
 	case RES_MTT: return "RES_MTT";
 	case RES_MAC: return  "RES_MAC";
+	case RES_VLAN: return  "RES_VLAN";
 	case RES_EQ: return "RES_EQ";
 	case RES_COUNTER: return "RES_COUNTER";
 	case RES_FS_RULE: return "RES_FS_RULE";
@@ -274,6 +283,7 @@ static const char *ResourceType(enum mlx4_resource rt)
 	};
 }
 
+static void rem_slave_vlans(struct mlx4_dev *dev, int slave);
 int mlx4_init_resource_tracker(struct mlx4_dev *dev)
 {
 	struct mlx4_priv *priv = mlx4_priv(dev);
@@ -309,11 +319,18 @@ void mlx4_free_resource_tracker(struct mlx4_dev *dev,
 	int i;
 
 	if (priv->mfunc.master.res_tracker.slave_list) {
-		if (type != RES_TR_FREE_STRUCTS_ONLY)
-			for (i = 0 ; i < dev->num_slaves; i++)
+		if (type != RES_TR_FREE_STRUCTS_ONLY) {
+			for (i = 0; i < dev->num_slaves; i++) {
 				if (type == RES_TR_FREE_ALL ||
 				    dev->caps.function != i)
 					mlx4_delete_all_resources_for_slave(dev, i);
+			}
+			/* free master's vlans */
+			i = dev->caps.function;
+			mutex_lock(&priv->mfunc.master.res_tracker.slave_list[i].mutex);
+			rem_slave_vlans(dev, i);
+			mutex_unlock(&priv->mfunc.master.res_tracker.slave_list[i].mutex);
+		}
 
 		if (type != RES_TR_FREE_SLAVES_ONLY) {
 			kfree(priv->mfunc.master.res_tracker.slave_list);
@@ -1469,12 +1486,96 @@ static int mac_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 	return err;
 }
 
-static int vlan_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
-			 u64 in_param, u64 *out_param, int port)
+static int vlan_add_to_slave(struct mlx4_dev *dev, int slave, u16 vlan,
+			     int port, int vlan_index)
 {
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
+	struct list_head *vlan_list =
+		&tracker->slave_list[slave].res_list[RES_VLAN];
+	struct vlan_res *res, *tmp;
+
+	list_for_each_entry_safe(res, tmp, vlan_list, list) {
+		if (res->vlan == vlan && res->port == (u8) port) {
+			/* vlan found. update ref count */
+			++res->ref_count;
+			return 0;
+		}
+	}
+
+	res = kzalloc(sizeof(*res), GFP_KERNEL);
+	if (!res)
+		return -ENOMEM;
+	res->vlan = vlan;
+	res->port = (u8) port;
+	res->vlan_index = vlan_index;
+	res->ref_count = 1;
+	list_add_tail(&res->list,
+		      &tracker->slave_list[slave].res_list[RES_VLAN]);
 	return 0;
 }
 
+
+static void vlan_del_from_slave(struct mlx4_dev *dev, int slave, u16 vlan,
+				int port)
+{
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
+	struct list_head *vlan_list =
+		&tracker->slave_list[slave].res_list[RES_VLAN];
+	struct vlan_res *res, *tmp;
+
+	list_for_each_entry_safe(res, tmp, vlan_list, list) {
+		if (res->vlan == vlan && res->port == (u8) port) {
+			if (!--res->ref_count) {
+				list_del(&res->list);
+				kfree(res);
+			}
+			break;
+		}
+	}
+}
+
+static void rem_slave_vlans(struct mlx4_dev *dev, int slave)
+{
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
+	struct list_head *vlan_list =
+		&tracker->slave_list[slave].res_list[RES_VLAN];
+	struct vlan_res *res, *tmp;
+	int i;
+
+	list_for_each_entry_safe(res, tmp, vlan_list, list) {
+		list_del(&res->list);
+		/* dereference the vlan the num times the slave referenced it */
+		for (i = 0; i < res->ref_count; i++)
+			__mlx4_unregister_vlan(dev, res->port, res->vlan);
+		kfree(res);
+	}
+}
+
+static int vlan_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
+			  u64 in_param, u64 *out_param, int port)
+{
+	int err;
+	u16 vlan;
+	int vlan_index;
+
+	if (!port || op != RES_OP_RESERVE_AND_MAP)
+		return -EINVAL;
+
+	vlan = (u16) in_param;
+
+	err = __mlx4_register_vlan(dev, port, vlan, &vlan_index);
+	if (!err) {
+		set_param_l(out_param, (u32) vlan_index);
+		err = vlan_add_to_slave(dev, slave, vlan, port, vlan_index);
+		if (err)
+			__mlx4_unregister_vlan(dev, port, vlan);
+	}
+	return err;
+}
+
 static int counter_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 			     u64 in_param, u64 *out_param)
 {
@@ -1755,7 +1856,21 @@ static int mac_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 static int vlan_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 			    u64 in_param, u64 *out_param, int port)
 {
-	return 0;
+	int err = 0;
+
+	switch (op) {
+	case RES_OP_RESERVE_AND_MAP:
+		if (!port)
+			return -EINVAL;
+		vlan_del_from_slave(dev, slave, in_param, port);
+		__mlx4_unregister_vlan(dev, port, in_param);
+		break;
+	default:
+		err = -EINVAL;
+		break;
+	}
+
+	return err;
 }
 
 static int counter_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
@@ -3968,7 +4083,7 @@ void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave)
 	struct mlx4_priv *priv = mlx4_priv(dev);
 
 	mutex_lock(&priv->mfunc.master.res_tracker.slave_list[slave].mutex);
-	/*VLAN*/
+	rem_slave_vlans(dev, slave);
 	rem_slave_macs(dev, slave);
 	rem_slave_fs_rule(dev, slave);
 	rem_slave_qps(dev, slave);
-- 
cgit 


From 2c957ff27dbbabec4ec406420fab9677d59f7161 Mon Sep 17 00:00:00 2001
From: Jack Morgenstein <jackm@dev.mellanox.co.il>
Date: Sun, 3 Nov 2013 10:03:21 +0200
Subject: net/mlx4_core: Don't fail reg/unreg vlan for older guests

In upstream kernels under SRIOV, the vlan register/unregister calls
were NOPs (doing nothing and returning OK). We detect these old
calls from guests (via the comm channel), since previously the
port number in mlx4_register_vlan was passed (improperly) in the
out_param. This has been corrected so that the port number is now
passed in bits 8..15 of the in_modifier field.

For old calls, these bits will be zero, so if the passed port
number is zero, we can still look at the out_param field to see
if it contains a valid port number. If yes, the VM is running
an old driver.

Since for old drivers, the register/unregister_vlan wrappers were
NOPs, we continue this policy -- the reason being that upstream
had an additional bug in eth driver running on guests (where
procedure mlx4_en_vlan_rx_kill_vid() had the following code:

if (!mlx4_find_cached_vlan(mdev->dev, priv->port, vid, &idx))
        mlx4_unregister_vlan(mdev->dev, priv->port, idx);
else
        en_err(priv, "could not find vid %d in cache\n", vid);

On a VM, mlx4_find_cached_vlan() will always fail, since the
vlan cache is located on the Hypervisor; on guests it is empty.

Therefore, if we allow upstream guests to register vlans, we will
have vlan leakage since the unregister will never be performed.
Leaving vlan reg/unreg for old guest drivers as a NOP is not a
feature regression, since in upstream the register/unregister
vlan wrapper is a NOP.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/cmd.c              |  1 +
 drivers/net/ethernet/mellanox/mlx4/mlx4.h             |  1 +
 drivers/net/ethernet/mellanox/mlx4/resource_tracker.c | 17 ++++++++++++++++-
 3 files changed, 18 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index 887d62576f54..65d41b76fa2c 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -1718,6 +1718,7 @@ static void mlx4_master_do_cmd(struct mlx4_dev *dev, int slave, u8 cmd,
 	if (cmd == MLX4_COMM_CMD_RESET) {
 		mlx4_warn(dev, "Received reset from slave:%d\n", slave);
 		slave_state[slave].active = false;
+		slave_state[slave].old_vlan_api = false;
 		mlx4_master_deactivate_admin_state(priv, slave);
 		for (i = 0; i < MLX4_EVENT_TYPES_NUM; ++i) {
 				slave_state[slave].event_eq[i].eqn = -1;
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
index f2ad4f61f58c..97941269bc14 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
@@ -455,6 +455,7 @@ struct mlx4_slave_state {
 	u8 last_cmd;
 	u8 init_port_mask;
 	bool active;
+	bool old_vlan_api;
 	u8 function;
 	dma_addr_t vhcr_dma;
 	u16 mtu[MLX4_MAX_PORTS + 1];
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index e18bfff04ced..35863889bec0 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
@@ -1555,15 +1555,26 @@ static void rem_slave_vlans(struct mlx4_dev *dev, int slave)
 }
 
 static int vlan_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
-			  u64 in_param, u64 *out_param, int port)
+			  u64 in_param, u64 *out_param, int in_port)
 {
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state;
 	int err;
 	u16 vlan;
 	int vlan_index;
+	int port;
+
+	port = !in_port ? get_param_l(out_param) : in_port;
 
 	if (!port || op != RES_OP_RESERVE_AND_MAP)
 		return -EINVAL;
 
+	/* upstream kernels had NOP for reg/unreg vlan. Continue this. */
+	if (!in_port && port > 0 && port <= dev->caps.num_ports) {
+		slave_state[slave].old_vlan_api = true;
+		return 0;
+	}
+
 	vlan = (u16) in_param;
 
 	err = __mlx4_register_vlan(dev, port, vlan, &vlan_index);
@@ -1856,10 +1867,14 @@ static int mac_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 static int vlan_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 			    u64 in_param, u64 *out_param, int port)
 {
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	struct mlx4_slave_state *slave_state = priv->mfunc.master.slave_state;
 	int err = 0;
 
 	switch (op) {
 	case RES_OP_RESERVE_AND_MAP:
+		if (slave_state[slave].old_vlan_api)
+			return 0;
 		if (!port)
 			return -EINVAL;
 		vlan_del_from_slave(dev, slave, in_param, port);
-- 
cgit 


From a30f1bc5c0254cee94bc22304e57fe030fcf68f5 Mon Sep 17 00:00:00 2001
From: Jack Morgenstein <jackm@dev.mellanox.co.il>
Date: Sun, 3 Nov 2013 10:03:22 +0200
Subject: net/mlx4_core: Fix checking order in MR table init

In procedure mlx4_init_mr_table(), slaves should do no processing,
but should return success. This initialization is hypervisor-only.

However, the check for num_mpts being a power-of-2 was performed
before the check to return immediately if the driver is for a slave.
This resulted in spurious failures.

The order of performing the checks is reversed, so that if the
driver is for a slave, no processing is done and success is returned.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/mr.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/mr.c b/drivers/net/ethernet/mellanox/mlx4/mr.c
index f91719a08cba..63391a1a7f8c 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mr.c
+++ b/drivers/net/ethernet/mellanox/mlx4/mr.c
@@ -755,14 +755,14 @@ int mlx4_init_mr_table(struct mlx4_dev *dev)
 	struct mlx4_mr_table *mr_table = &priv->mr_table;
 	int err;
 
-	if (!is_power_of_2(dev->caps.num_mpts))
-		return -EINVAL;
-
 	/* Nothing to do for slaves - all MR handling is forwarded
 	* to the master */
 	if (mlx4_is_slave(dev))
 		return 0;
 
+	if (!is_power_of_2(dev->caps.num_mpts))
+		return -EINVAL;
+
 	err = mlx4_bitmap_init(&mr_table->mpt_bitmap, dev->caps.num_mpts,
 			       ~0, dev->caps.reserved_mrws, 0);
 	if (err)
-- 
cgit 


From 5a0d0a6161aecbbc76e4c1d2b82e4c7cef88bb29 Mon Sep 17 00:00:00 2001
From: Jack Morgenstein <jackm@dev.mellanox.co.il>
Date: Sun, 3 Nov 2013 10:03:23 +0200
Subject: mlx4: Structures and init/teardown for VF resource quotas

This is step #1 for implementing SRIOV resource quotas for VFs.

Quotas are implemented per resource type for VFs and the PF, to prevent
any entity from simply grabbing all the resources for itself and leaving
the other entities unable to obtain such resources.

Resources which are allocated using quotas:  QPs, CQs, SRQs, MPTs, MTTs, MAC,
                                             VLAN, and Counters.

The quota system works as follows:
Each entity (VF or PF) is given a max number of a given resource (its quota),
and a guaranteed minimum number for each resource (starvation prevention).

For QPs, CQs, SRQs, MPTs and MTTs:
50% of the available quantity for the resource is divided equally among
the PF and all the active VFs (i.e., the number of VFs in the mlx4_core module
parameter "num_vfs"). This 50% represents the "guaranteed minimum" pool.
The other 50% is the "free pool", allocated on a first-come-first-serve basis.
For each VF/PF, resources are first allocated from its "guaranteed-minimum"
pool. When that pool is exhausted, the driver attempts to allocate from
the resource "free-pool".

The quota (i.e., max) for the VFs and the PF is:
  The free-pool amount (50% of the real max) + the guaranteed minimum

For MACs:
  Guarantee 2 MACs per VF/PF per port. As a result, since we have only
  128 MACs per port, reduce the allowable number of VFs from 64 to 63.
  Any remaining MACs are put into a free pool.

For VLANs:
  For the PF, the per-port quota is 128 and guarantee is 64
     (to allow the PF to register at least a VLAN per VF in VST mode).
  For the VFs, the per-port quota is 64 and the guarantee is 0.
      We assume that VGT VFs are trusted not to abuse the VLAN resource.

For Counters:
  For all functions (PF and VFs), the quota is 128 and the guarantee is 0.

In this patch, we define the needed structures, which are added to the
resource-tracker struct.  In addition, we do initialization
for the resource quota, and adjust the query_device response to use quotas
rather than resource maxima.

As part of the implementation, we introduce a new field in
mlx4_dev: quotas.  This field holds the resource quotas used
to report maxima to the upper layers (ib_core, via query_device).

The HCA maxima of these values are passed to the VFs (via
QUERY_HCA) so that they may continue to use these in handling
QPs, CQs, SRQs and MPTs.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/infiniband/hw/mlx4/main.c                  |   8 +-
 drivers/net/ethernet/mellanox/mlx4/fw.c            |  11 +-
 drivers/net/ethernet/mellanox/mlx4/main.c          |  32 +++--
 drivers/net/ethernet/mellanox/mlx4/mlx4.h          |  17 +++
 drivers/net/ethernet/mellanox/mlx4/qp.c            |   3 +-
 .../net/ethernet/mellanox/mlx4/resource_tracker.c  | 157 ++++++++++++++++++++-
 include/linux/mlx4/device.h                        |  17 +++
 7 files changed, 222 insertions(+), 23 deletions(-)

diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index f0612645de99..7567437dbd34 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -177,18 +177,18 @@ static int mlx4_ib_query_device(struct ib_device *ibdev,
 
 	props->max_mr_size	   = ~0ull;
 	props->page_size_cap	   = dev->dev->caps.page_size_cap;
-	props->max_qp		   = dev->dev->caps.num_qps - dev->dev->caps.reserved_qps;
+	props->max_qp		   = dev->dev->quotas.qp;
 	props->max_qp_wr	   = dev->dev->caps.max_wqes - MLX4_IB_SQ_MAX_SPARE;
 	props->max_sge		   = min(dev->dev->caps.max_sq_sg,
 					 dev->dev->caps.max_rq_sg);
-	props->max_cq		   = dev->dev->caps.num_cqs - dev->dev->caps.reserved_cqs;
+	props->max_cq		   = dev->dev->quotas.cq;
 	props->max_cqe		   = dev->dev->caps.max_cqes;
-	props->max_mr		   = dev->dev->caps.num_mpts - dev->dev->caps.reserved_mrws;
+	props->max_mr		   = dev->dev->quotas.mpt;
 	props->max_pd		   = dev->dev->caps.num_pds - dev->dev->caps.reserved_pds;
 	props->max_qp_rd_atom	   = dev->dev->caps.max_qp_dest_rdma;
 	props->max_qp_init_rd_atom = dev->dev->caps.max_qp_init_rdma;
 	props->max_res_rd_atom	   = props->max_qp_rd_atom * props->max_qp;
-	props->max_srq		   = dev->dev->caps.num_srqs - dev->dev->caps.reserved_srqs;
+	props->max_srq		   = dev->dev->quotas.srq;
 	props->max_srq_wr	   = dev->dev->caps.max_srq_wqes - 1;
 	props->max_srq_sge	   = dev->dev->caps.max_srq_sge;
 	props->max_fast_reg_page_list_len = MLX4_MAX_FAST_REG_PAGES;
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index c151e7a6710a..f8c88c3ad9fc 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -177,6 +177,7 @@ int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
 				struct mlx4_cmd_mailbox *outbox,
 				struct mlx4_cmd_info *cmd)
 {
+	struct mlx4_priv *priv = mlx4_priv(dev);
 	u8	field;
 	u32	size;
 	int	err = 0;
@@ -250,13 +251,13 @@ int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
 		field = 0; /* protected FMR support not available as yet */
 		MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FMR_OFFSET);
 
-		size = dev->caps.num_qps;
+		size = priv->mfunc.master.res_tracker.res_alloc[RES_QP].quota[slave];
 		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP_QUOTA_OFFSET);
 
-		size = dev->caps.num_srqs;
+		size = priv->mfunc.master.res_tracker.res_alloc[RES_SRQ].quota[slave];
 		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET);
 
-		size = dev->caps.num_cqs;
+		size = priv->mfunc.master.res_tracker.res_alloc[RES_CQ].quota[slave];
 		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET);
 
 		size = dev->caps.num_eqs;
@@ -265,10 +266,10 @@ int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
 		size = dev->caps.reserved_eqs;
 		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
 
-		size = dev->caps.num_mpts;
+		size = priv->mfunc.master.res_tracker.res_alloc[RES_MPT].quota[slave];
 		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET);
 
-		size = dev->caps.num_mtts;
+		size = priv->mfunc.master.res_tracker.res_alloc[RES_MTT].quota[slave];
 		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET);
 
 		size = dev->caps.num_mgms + dev->caps.num_amgms;
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 179d26709c94..7d2628dfdc29 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -562,13 +562,17 @@ static int mlx4_slave_cap(struct mlx4_dev *dev)
 	}
 
 	dev->caps.num_ports		= func_cap.num_ports;
-	dev->caps.num_qps		= func_cap.qp_quota;
-	dev->caps.num_srqs		= func_cap.srq_quota;
-	dev->caps.num_cqs		= func_cap.cq_quota;
-	dev->caps.num_eqs               = func_cap.max_eq;
-	dev->caps.reserved_eqs          = func_cap.reserved_eq;
-	dev->caps.num_mpts		= func_cap.mpt_quota;
-	dev->caps.num_mtts		= func_cap.mtt_quota;
+	dev->quotas.qp			= func_cap.qp_quota;
+	dev->quotas.srq			= func_cap.srq_quota;
+	dev->quotas.cq			= func_cap.cq_quota;
+	dev->quotas.mpt			= func_cap.mpt_quota;
+	dev->quotas.mtt			= func_cap.mtt_quota;
+	dev->caps.num_qps		= 1 << hca_param.log_num_qps;
+	dev->caps.num_srqs		= 1 << hca_param.log_num_srqs;
+	dev->caps.num_cqs		= 1 << hca_param.log_num_cqs;
+	dev->caps.num_mpts		= 1 << hca_param.log_mpt_sz;
+	dev->caps.num_eqs		= func_cap.max_eq;
+	dev->caps.reserved_eqs		= func_cap.reserved_eq;
 	dev->caps.num_pds               = MLX4_NUM_PDS;
 	dev->caps.num_mgms              = 0;
 	dev->caps.num_amgms             = 0;
@@ -2102,9 +2106,15 @@ static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data)
 			"aborting.\n");
 		return err;
 	}
-	if (num_vfs > MLX4_MAX_NUM_VF) {
-		printk(KERN_ERR "There are more VF's (%d) than allowed(%d)\n",
-		       num_vfs, MLX4_MAX_NUM_VF);
+
+	/* Due to requirement that all VFs and the PF are *guaranteed* 2 MACS
+	 * per port, we must limit the number of VFs to 63 (since their are
+	 * 128 MACs)
+	 */
+	if (num_vfs >= MLX4_MAX_NUM_VF) {
+		dev_err(&pdev->dev,
+			"Requested more VF's (%d) than allowed (%d)\n",
+			num_vfs, MLX4_MAX_NUM_VF - 1);
 		return -EINVAL;
 	}
 
@@ -2322,6 +2332,8 @@ slave_start:
 	if (err)
 		goto err_steer;
 
+	mlx4_init_quotas(dev);
+
 	for (port = 1; port <= dev->caps.num_ports; port++) {
 		err = mlx4_init_port_info(dev, port);
 		if (err)
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
index 97941269bc14..e7eb86ecc6ea 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
@@ -504,12 +504,27 @@ struct slave_list {
 	struct list_head res_list[MLX4_NUM_OF_RESOURCE_TYPE];
 };
 
+struct resource_allocator {
+	union {
+		int res_reserved;
+		int res_port_rsvd[MLX4_MAX_PORTS];
+	};
+	union {
+		int res_free;
+		int res_port_free[MLX4_MAX_PORTS];
+	};
+	int *quota;
+	int *allocated;
+	int *guaranteed;
+};
+
 struct mlx4_resource_tracker {
 	spinlock_t lock;
 	/* tree for each resources */
 	struct rb_root res_tree[MLX4_NUM_OF_RESOURCE_TYPE];
 	/* num_of_slave's lists, one per slave */
 	struct slave_list *slave_list;
+	struct resource_allocator res_alloc[MLX4_NUM_OF_RESOURCE_TYPE];
 };
 
 #define SLAVE_EVENT_EQ_SIZE	128
@@ -1253,4 +1268,6 @@ static inline spinlock_t *mlx4_tlock(struct mlx4_dev *dev)
 
 void mlx4_vf_immed_vlan_work_handler(struct work_struct *_work);
 
+void mlx4_init_quotas(struct mlx4_dev *dev);
+
 #endif /* MLX4_H */
diff --git a/drivers/net/ethernet/mellanox/mlx4/qp.c b/drivers/net/ethernet/mellanox/mlx4/qp.c
index e891b058c1be..2715e61dbb74 100644
--- a/drivers/net/ethernet/mellanox/mlx4/qp.c
+++ b/drivers/net/ethernet/mellanox/mlx4/qp.c
@@ -480,8 +480,7 @@ int mlx4_init_qp_table(struct mlx4_dev *dev)
 	*/
 
 	err = mlx4_bitmap_init(&qp_table->bitmap, dev->caps.num_qps,
-			       (1 << 23) - 1, dev->phys_caps.base_sqpn + 8 +
-			       16 * MLX4_MFUNC_MAX * !!mlx4_is_master(dev),
+			       (1 << 23) - 1, mlx4_num_reserved_sqps(dev),
 			       reserved_from_top);
 	if (err)
 		return err;
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index 35863889bec0..cc5d6d0aad16 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
@@ -284,10 +284,59 @@ static const char *ResourceType(enum mlx4_resource rt)
 }
 
 static void rem_slave_vlans(struct mlx4_dev *dev, int slave);
+static inline void initialize_res_quotas(struct mlx4_dev *dev,
+					 struct resource_allocator *res_alloc,
+					 enum mlx4_resource res_type,
+					 int vf, int num_instances)
+{
+	res_alloc->guaranteed[vf] = num_instances / (2 * (dev->num_vfs + 1));
+	res_alloc->quota[vf] = (num_instances / 2) + res_alloc->guaranteed[vf];
+	if (vf == mlx4_master_func_num(dev)) {
+		res_alloc->res_free = num_instances;
+		if (res_type == RES_MTT) {
+			/* reserved mtts will be taken out of the PF allocation */
+			res_alloc->res_free += dev->caps.reserved_mtts;
+			res_alloc->guaranteed[vf] += dev->caps.reserved_mtts;
+			res_alloc->quota[vf] += dev->caps.reserved_mtts;
+		}
+	}
+}
+
+void mlx4_init_quotas(struct mlx4_dev *dev)
+{
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	int pf;
+
+	/* quotas for VFs are initialized in mlx4_slave_cap */
+	if (mlx4_is_slave(dev))
+		return;
+
+	if (!mlx4_is_mfunc(dev)) {
+		dev->quotas.qp = dev->caps.num_qps - dev->caps.reserved_qps -
+			mlx4_num_reserved_sqps(dev);
+		dev->quotas.cq = dev->caps.num_cqs - dev->caps.reserved_cqs;
+		dev->quotas.srq = dev->caps.num_srqs - dev->caps.reserved_srqs;
+		dev->quotas.mtt = dev->caps.num_mtts - dev->caps.reserved_mtts;
+		dev->quotas.mpt = dev->caps.num_mpts - dev->caps.reserved_mrws;
+		return;
+	}
+
+	pf = mlx4_master_func_num(dev);
+	dev->quotas.qp =
+		priv->mfunc.master.res_tracker.res_alloc[RES_QP].quota[pf];
+	dev->quotas.cq =
+		priv->mfunc.master.res_tracker.res_alloc[RES_CQ].quota[pf];
+	dev->quotas.srq =
+		priv->mfunc.master.res_tracker.res_alloc[RES_SRQ].quota[pf];
+	dev->quotas.mtt =
+		priv->mfunc.master.res_tracker.res_alloc[RES_MTT].quota[pf];
+	dev->quotas.mpt =
+		priv->mfunc.master.res_tracker.res_alloc[RES_MPT].quota[pf];
+}
 int mlx4_init_resource_tracker(struct mlx4_dev *dev)
 {
 	struct mlx4_priv *priv = mlx4_priv(dev);
-	int i;
+	int i, j;
 	int t;
 
 	priv->mfunc.master.res_tracker.slave_list =
@@ -308,8 +357,104 @@ int mlx4_init_resource_tracker(struct mlx4_dev *dev)
 	for (i = 0 ; i < MLX4_NUM_OF_RESOURCE_TYPE; i++)
 		priv->mfunc.master.res_tracker.res_tree[i] = RB_ROOT;
 
+	for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) {
+		struct resource_allocator *res_alloc =
+			&priv->mfunc.master.res_tracker.res_alloc[i];
+		res_alloc->quota = kmalloc((dev->num_vfs + 1) * sizeof(int), GFP_KERNEL);
+		res_alloc->guaranteed = kmalloc((dev->num_vfs + 1) * sizeof(int), GFP_KERNEL);
+		if (i == RES_MAC || i == RES_VLAN)
+			res_alloc->allocated = kzalloc(MLX4_MAX_PORTS *
+						       (dev->num_vfs + 1) * sizeof(int),
+							GFP_KERNEL);
+		else
+			res_alloc->allocated = kzalloc((dev->num_vfs + 1) * sizeof(int), GFP_KERNEL);
+
+		if (!res_alloc->quota || !res_alloc->guaranteed ||
+		    !res_alloc->allocated)
+			goto no_mem_err;
+
+		for (t = 0; t < dev->num_vfs + 1; t++) {
+			switch (i) {
+			case RES_QP:
+				initialize_res_quotas(dev, res_alloc, RES_QP,
+						      t, dev->caps.num_qps -
+						      dev->caps.reserved_qps -
+						      mlx4_num_reserved_sqps(dev));
+				break;
+			case RES_CQ:
+				initialize_res_quotas(dev, res_alloc, RES_CQ,
+						      t, dev->caps.num_cqs -
+						      dev->caps.reserved_cqs);
+				break;
+			case RES_SRQ:
+				initialize_res_quotas(dev, res_alloc, RES_SRQ,
+						      t, dev->caps.num_srqs -
+						      dev->caps.reserved_srqs);
+				break;
+			case RES_MPT:
+				initialize_res_quotas(dev, res_alloc, RES_MPT,
+						      t, dev->caps.num_mpts -
+						      dev->caps.reserved_mrws);
+				break;
+			case RES_MTT:
+				initialize_res_quotas(dev, res_alloc, RES_MTT,
+						      t, dev->caps.num_mtts -
+						      dev->caps.reserved_mtts);
+				break;
+			case RES_MAC:
+				if (t == mlx4_master_func_num(dev)) {
+					res_alloc->quota[t] = MLX4_MAX_MAC_NUM;
+					res_alloc->guaranteed[t] = 2;
+					for (j = 0; j < MLX4_MAX_PORTS; j++)
+						res_alloc->res_port_free[j] = MLX4_MAX_MAC_NUM;
+				} else {
+					res_alloc->quota[t] = MLX4_MAX_MAC_NUM;
+					res_alloc->guaranteed[t] = 2;
+				}
+				break;
+			case RES_VLAN:
+				if (t == mlx4_master_func_num(dev)) {
+					res_alloc->quota[t] = MLX4_MAX_VLAN_NUM;
+					res_alloc->guaranteed[t] = MLX4_MAX_VLAN_NUM / 2;
+					for (j = 0; j < MLX4_MAX_PORTS; j++)
+						res_alloc->res_port_free[j] =
+							res_alloc->quota[t];
+				} else {
+					res_alloc->quota[t] = MLX4_MAX_VLAN_NUM / 2;
+					res_alloc->guaranteed[t] = 0;
+				}
+				break;
+			case RES_COUNTER:
+				res_alloc->quota[t] = dev->caps.max_counters;
+				res_alloc->guaranteed[t] = 0;
+				if (t == mlx4_master_func_num(dev))
+					res_alloc->res_free = res_alloc->quota[t];
+				break;
+			default:
+				break;
+			}
+			if (i == RES_MAC || i == RES_VLAN) {
+				for (j = 0; j < MLX4_MAX_PORTS; j++)
+					res_alloc->res_port_rsvd[j] +=
+						res_alloc->guaranteed[t];
+			} else {
+				res_alloc->res_reserved += res_alloc->guaranteed[t];
+			}
+		}
+	}
 	spin_lock_init(&priv->mfunc.master.res_tracker.lock);
-	return 0 ;
+	return 0;
+
+no_mem_err:
+	for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) {
+		kfree(priv->mfunc.master.res_tracker.res_alloc[i].allocated);
+		priv->mfunc.master.res_tracker.res_alloc[i].allocated = NULL;
+		kfree(priv->mfunc.master.res_tracker.res_alloc[i].guaranteed);
+		priv->mfunc.master.res_tracker.res_alloc[i].guaranteed = NULL;
+		kfree(priv->mfunc.master.res_tracker.res_alloc[i].quota);
+		priv->mfunc.master.res_tracker.res_alloc[i].quota = NULL;
+	}
+	return -ENOMEM;
 }
 
 void mlx4_free_resource_tracker(struct mlx4_dev *dev,
@@ -333,6 +478,14 @@ void mlx4_free_resource_tracker(struct mlx4_dev *dev,
 		}
 
 		if (type != RES_TR_FREE_SLAVES_ONLY) {
+			for (i = 0; i < MLX4_NUM_OF_RESOURCE_TYPE; i++) {
+				kfree(priv->mfunc.master.res_tracker.res_alloc[i].allocated);
+				priv->mfunc.master.res_tracker.res_alloc[i].allocated = NULL;
+				kfree(priv->mfunc.master.res_tracker.res_alloc[i].guaranteed);
+				priv->mfunc.master.res_tracker.res_alloc[i].guaranteed = NULL;
+				kfree(priv->mfunc.master.res_tracker.res_alloc[i].quota);
+				priv->mfunc.master.res_tracker.res_alloc[i].quota = NULL;
+			}
 			kfree(priv->mfunc.master.res_tracker.slave_list);
 			priv->mfunc.master.res_tracker.slave_list = NULL;
 		}
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index e2e92885bdc1..f6f59271f857 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -641,12 +641,23 @@ struct mlx4_counter {
 	__be64	tx_bytes;
 };
 
+struct mlx4_quotas {
+	int qp;
+	int cq;
+	int srq;
+	int mpt;
+	int mtt;
+	int counter;
+	int xrcd;
+};
+
 struct mlx4_dev {
 	struct pci_dev	       *pdev;
 	unsigned long		flags;
 	unsigned long		num_slaves;
 	struct mlx4_caps	caps;
 	struct mlx4_phys_caps	phys_caps;
+	struct mlx4_quotas	quotas;
 	struct radix_tree_root	qp_table_tree;
 	u8			rev_id;
 	char			board_id[MLX4_BOARD_ID_LEN];
@@ -772,6 +783,12 @@ static inline int mlx4_is_master(struct mlx4_dev *dev)
 	return dev->flags & MLX4_FLAG_MASTER;
 }
 
+static inline int mlx4_num_reserved_sqps(struct mlx4_dev *dev)
+{
+	return dev->phys_caps.base_sqpn + 8 +
+		16 * MLX4_MFUNC_MAX * !!mlx4_is_master(dev);
+}
+
 static inline int mlx4_is_qp_reserved(struct mlx4_dev *dev, u32 qpn)
 {
 	return (qpn < dev->phys_caps.base_sqpn + 8 +
-- 
cgit 


From eb456a68c67224efa71e7ef5975cf36c91794695 Mon Sep 17 00:00:00 2001
From: Jack Morgenstein <jackm@dev.mellanox.co.il>
Date: Sun, 3 Nov 2013 10:03:24 +0200
Subject: net/mlx4_core: Fix quota handling in the QUERY_FUNC_CAP wrapper

In current kernels, the mlx4 driver running on a VM does not
differentiate between max resource numbers for the HCA and
max quotas -- it simply takes the quota values passed to it
as max-resource values.

However, the driver actually requires the VFs to be aware of
the actual number of resources that the HCA was initialized with,
for QPs, CQs, SRQs and MPTs.

For QPs, CQs and SRQs, the reason is that in completion handling
the driver must know which of the 24 bits are the actual resource
number, and which are "padding" bits.

For MPTs, also, the driver assumes knowledge of the number of MPTs
in the system.

The previous commit fixes the quota logic on the VM for the quota values
passed to it by QUERY_FUNC_CAPS.

For QPs, CQs, SRQs, and MPTs, it takes the max resource numbers
from QUERY_HCA (and not QUERY_FUNC_CAPS).  The quotas passed
in QUERY_FUNC_CAPS are used to report max resource number values
in the response to ib_query_device.

However, the Hypervisor driver must consider that VMs
may be running previous kernels, and compatibility must be preserved.

To resolve the incompatibility with previous kernels running on VMs,
we deprecated the quota fields in mlx4_QUERY_FUNC_CAP.  In the
deprecated fields, we pass the max-resource values from INIT_HCA

The quota fields are moved to a new location, and the current kernel
driver takes the proper values from that location. There is
also a new flag in dword 0, bit 28 of the mlx4_QUERY_FUNC_CAP mailbox;
if this flag is set, the (VM) driver takes the quota values from the
new location.

VMs running previous kernels will work properly, except that the max resource
numbers reported in ib_query_device for these resources will be
too high.  The Hypervisor driver will, however, enforce the quotas
for these VMs.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/fw.c | 88 ++++++++++++++++++++++++---------
 1 file changed, 65 insertions(+), 23 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index f8c88c3ad9fc..c3e70bc2d875 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -186,18 +186,26 @@ int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
 #define QUERY_FUNC_CAP_NUM_PORTS_OFFSET		0x1
 #define QUERY_FUNC_CAP_PF_BHVR_OFFSET		0x4
 #define QUERY_FUNC_CAP_FMR_OFFSET		0x8
-#define QUERY_FUNC_CAP_QP_QUOTA_OFFSET		0x10
-#define QUERY_FUNC_CAP_CQ_QUOTA_OFFSET		0x14
-#define QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET		0x18
-#define QUERY_FUNC_CAP_MPT_QUOTA_OFFSET		0x20
-#define QUERY_FUNC_CAP_MTT_QUOTA_OFFSET		0x24
-#define QUERY_FUNC_CAP_MCG_QUOTA_OFFSET		0x28
+#define QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP	0x10
+#define QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP	0x14
+#define QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP	0x18
+#define QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP	0x20
+#define QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP	0x24
+#define QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP	0x28
 #define QUERY_FUNC_CAP_MAX_EQ_OFFSET		0x2c
 #define QUERY_FUNC_CAP_RESERVED_EQ_OFFSET	0x30
 
+#define QUERY_FUNC_CAP_QP_QUOTA_OFFSET		0x50
+#define QUERY_FUNC_CAP_CQ_QUOTA_OFFSET		0x54
+#define QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET		0x58
+#define QUERY_FUNC_CAP_MPT_QUOTA_OFFSET		0x60
+#define QUERY_FUNC_CAP_MTT_QUOTA_OFFSET		0x64
+#define QUERY_FUNC_CAP_MCG_QUOTA_OFFSET		0x68
+
 #define QUERY_FUNC_CAP_FMR_FLAG			0x80
 #define QUERY_FUNC_CAP_FLAG_RDMA		0x40
 #define QUERY_FUNC_CAP_FLAG_ETH			0x80
+#define QUERY_FUNC_CAP_FLAG_QUOTAS		0x10
 
 /* when opcode modifier = 1 */
 #define QUERY_FUNC_CAP_PHYS_PORT_OFFSET		0x3
@@ -238,8 +246,9 @@ int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
 		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP1_PROXY);
 
 	} else if (vhcr->op_modifier == 0) {
-		/* enable rdma and ethernet interfaces */
-		field = (QUERY_FUNC_CAP_FLAG_ETH | QUERY_FUNC_CAP_FLAG_RDMA);
+		/* enable rdma and ethernet interfaces, and new quota locations */
+		field = (QUERY_FUNC_CAP_FLAG_ETH | QUERY_FUNC_CAP_FLAG_RDMA |
+			 QUERY_FUNC_CAP_FLAG_QUOTAS);
 		MLX4_PUT(outbox->buf, field, QUERY_FUNC_CAP_FLAGS_OFFSET);
 
 		field = dev->caps.num_ports;
@@ -253,12 +262,18 @@ int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
 
 		size = priv->mfunc.master.res_tracker.res_alloc[RES_QP].quota[slave];
 		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP_QUOTA_OFFSET);
+		size = dev->caps.num_qps;
+		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP);
 
 		size = priv->mfunc.master.res_tracker.res_alloc[RES_SRQ].quota[slave];
 		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET);
+		size = dev->caps.num_srqs;
+		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP);
 
 		size = priv->mfunc.master.res_tracker.res_alloc[RES_CQ].quota[slave];
 		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET);
+		size = dev->caps.num_cqs;
+		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP);
 
 		size = dev->caps.num_eqs;
 		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
@@ -268,12 +283,17 @@ int mlx4_QUERY_FUNC_CAP_wrapper(struct mlx4_dev *dev, int slave,
 
 		size = priv->mfunc.master.res_tracker.res_alloc[RES_MPT].quota[slave];
 		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET);
+		size = dev->caps.num_mpts;
+		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP);
 
 		size = priv->mfunc.master.res_tracker.res_alloc[RES_MTT].quota[slave];
 		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET);
+		size = dev->caps.num_mtts;
+		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP);
 
 		size = dev->caps.num_mgms + dev->caps.num_amgms;
 		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET);
+		MLX4_PUT(outbox->buf, size, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP);
 
 	} else
 		err = -EINVAL;
@@ -288,7 +308,7 @@ int mlx4_QUERY_FUNC_CAP(struct mlx4_dev *dev, u32 gen_or_port,
 	u32			*outbox;
 	u8			field, op_modifier;
 	u32			size;
-	int			err = 0;
+	int			err = 0, quotas = 0;
 
 	op_modifier = !!gen_or_port; /* 0 = general, 1 = logical port */
 
@@ -312,6 +332,7 @@ int mlx4_QUERY_FUNC_CAP(struct mlx4_dev *dev, u32 gen_or_port,
 			goto out;
 		}
 		func_cap->flags = field;
+		quotas = !!(func_cap->flags & QUERY_FUNC_CAP_FLAG_QUOTAS);
 
 		MLX4_GET(field, outbox, QUERY_FUNC_CAP_NUM_PORTS_OFFSET);
 		func_cap->num_ports = field;
@@ -319,29 +340,50 @@ int mlx4_QUERY_FUNC_CAP(struct mlx4_dev *dev, u32 gen_or_port,
 		MLX4_GET(size, outbox, QUERY_FUNC_CAP_PF_BHVR_OFFSET);
 		func_cap->pf_context_behaviour = size;
 
-		MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_QUOTA_OFFSET);
-		func_cap->qp_quota = size & 0xFFFFFF;
+		if (quotas) {
+			MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_QUOTA_OFFSET);
+			func_cap->qp_quota = size & 0xFFFFFF;
+
+			MLX4_GET(size, outbox, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET);
+			func_cap->srq_quota = size & 0xFFFFFF;
+
+			MLX4_GET(size, outbox, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET);
+			func_cap->cq_quota = size & 0xFFFFFF;
+
+			MLX4_GET(size, outbox, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET);
+			func_cap->mpt_quota = size & 0xFFFFFF;
+
+			MLX4_GET(size, outbox, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET);
+			func_cap->mtt_quota = size & 0xFFFFFF;
+
+			MLX4_GET(size, outbox, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET);
+			func_cap->mcg_quota = size & 0xFFFFFF;
 
-		MLX4_GET(size, outbox, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET);
-		func_cap->srq_quota = size & 0xFFFFFF;
+		} else {
+			MLX4_GET(size, outbox, QUERY_FUNC_CAP_QP_QUOTA_OFFSET_DEP);
+			func_cap->qp_quota = size & 0xFFFFFF;
 
-		MLX4_GET(size, outbox, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET);
-		func_cap->cq_quota = size & 0xFFFFFF;
+			MLX4_GET(size, outbox, QUERY_FUNC_CAP_SRQ_QUOTA_OFFSET_DEP);
+			func_cap->srq_quota = size & 0xFFFFFF;
 
+			MLX4_GET(size, outbox, QUERY_FUNC_CAP_CQ_QUOTA_OFFSET_DEP);
+			func_cap->cq_quota = size & 0xFFFFFF;
+
+			MLX4_GET(size, outbox, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET_DEP);
+			func_cap->mpt_quota = size & 0xFFFFFF;
+
+			MLX4_GET(size, outbox, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET_DEP);
+			func_cap->mtt_quota = size & 0xFFFFFF;
+
+			MLX4_GET(size, outbox, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET_DEP);
+			func_cap->mcg_quota = size & 0xFFFFFF;
+		}
 		MLX4_GET(size, outbox, QUERY_FUNC_CAP_MAX_EQ_OFFSET);
 		func_cap->max_eq = size & 0xFFFFFF;
 
 		MLX4_GET(size, outbox, QUERY_FUNC_CAP_RESERVED_EQ_OFFSET);
 		func_cap->reserved_eq = size & 0xFFFFFF;
 
-		MLX4_GET(size, outbox, QUERY_FUNC_CAP_MPT_QUOTA_OFFSET);
-		func_cap->mpt_quota = size & 0xFFFFFF;
-
-		MLX4_GET(size, outbox, QUERY_FUNC_CAP_MTT_QUOTA_OFFSET);
-		func_cap->mtt_quota = size & 0xFFFFFF;
-
-		MLX4_GET(size, outbox, QUERY_FUNC_CAP_MCG_QUOTA_OFFSET);
-		func_cap->mcg_quota = size & 0xFFFFFF;
 		goto out;
 	}
 
-- 
cgit 


From 146f3ef4a193f2e8cc826bed01a635861287df63 Mon Sep 17 00:00:00 2001
From: Jack Morgenstein <jackm@dev.mellanox.co.il>
Date: Sun, 3 Nov 2013 10:03:25 +0200
Subject: net/mlx4_core: Implement resource quota enforcement

Implements resource quota grant decision when resources are requested,
for the following resources:  QPs, CQs, SRQs, MPTs, MTTs, vlans, MACs,
and Counters.

When granting a resource, the quota system increases the allocated-count
for that slave.

When the slave later frees the resource, its allocated-count is reduced.

A spinlock is used to protect the integrity of each resource's free-pool counter.
(One slave may be in the process of being granted a resource while another
slave has crashed, initiating cleanup of that slave's resource quotas).

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/mlx4.h          |   1 +
 .../net/ethernet/mellanox/mlx4/resource_tracker.c  | 185 +++++++++++++++++++--
 2 files changed, 173 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
index e7eb86ecc6ea..e582a41a802b 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
@@ -505,6 +505,7 @@ struct slave_list {
 };
 
 struct resource_allocator {
+	spinlock_t alloc_lock; /* protect quotas */
 	union {
 		int res_reserved;
 		int res_port_rsvd[MLX4_MAX_PORTS];
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index cc5d6d0aad16..b1603e2287a7 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
@@ -284,6 +284,85 @@ static const char *ResourceType(enum mlx4_resource rt)
 }
 
 static void rem_slave_vlans(struct mlx4_dev *dev, int slave);
+static inline int mlx4_grant_resource(struct mlx4_dev *dev, int slave,
+				      enum mlx4_resource res_type, int count,
+				      int port)
+{
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	struct resource_allocator *res_alloc =
+		&priv->mfunc.master.res_tracker.res_alloc[res_type];
+	int err = -EINVAL;
+	int allocated, free, reserved, guaranteed, from_free;
+
+	if (slave > dev->num_vfs)
+		return -EINVAL;
+
+	spin_lock(&res_alloc->alloc_lock);
+	allocated = (port > 0) ?
+		res_alloc->allocated[(port - 1) * (dev->num_vfs + 1) + slave] :
+		res_alloc->allocated[slave];
+	free = (port > 0) ? res_alloc->res_port_free[port - 1] :
+		res_alloc->res_free;
+	reserved = (port > 0) ? res_alloc->res_port_rsvd[port - 1] :
+		res_alloc->res_reserved;
+	guaranteed = res_alloc->guaranteed[slave];
+
+	if (allocated + count > res_alloc->quota[slave])
+		goto out;
+
+	if (allocated + count <= guaranteed) {
+		err = 0;
+	} else {
+		/* portion may need to be obtained from free area */
+		if (guaranteed - allocated > 0)
+			from_free = count - (guaranteed - allocated);
+		else
+			from_free = count;
+
+		if (free - from_free > reserved)
+			err = 0;
+	}
+
+	if (!err) {
+		/* grant the request */
+		if (port > 0) {
+			res_alloc->allocated[(port - 1) * (dev->num_vfs + 1) + slave] += count;
+			res_alloc->res_port_free[port - 1] -= count;
+		} else {
+			res_alloc->allocated[slave] += count;
+			res_alloc->res_free -= count;
+		}
+	}
+
+out:
+	spin_unlock(&res_alloc->alloc_lock);
+	return err;
+}
+
+static inline void mlx4_release_resource(struct mlx4_dev *dev, int slave,
+				    enum mlx4_resource res_type, int count,
+				    int port)
+{
+	struct mlx4_priv *priv = mlx4_priv(dev);
+	struct resource_allocator *res_alloc =
+		&priv->mfunc.master.res_tracker.res_alloc[res_type];
+
+	if (slave > dev->num_vfs)
+		return;
+
+	spin_lock(&res_alloc->alloc_lock);
+	if (port > 0) {
+		res_alloc->allocated[(port - 1) * (dev->num_vfs + 1) + slave] -= count;
+		res_alloc->res_port_free[port - 1] += count;
+	} else {
+		res_alloc->allocated[slave] -= count;
+		res_alloc->res_free += count;
+	}
+
+	spin_unlock(&res_alloc->alloc_lock);
+	return;
+}
+
 static inline void initialize_res_quotas(struct mlx4_dev *dev,
 					 struct resource_allocator *res_alloc,
 					 enum mlx4_resource res_type,
@@ -373,6 +452,7 @@ int mlx4_init_resource_tracker(struct mlx4_dev *dev)
 		    !res_alloc->allocated)
 			goto no_mem_err;
 
+		spin_lock_init(&res_alloc->alloc_lock);
 		for (t = 0; t < dev->num_vfs + 1; t++) {
 			switch (i) {
 			case RES_QP:
@@ -1399,12 +1479,19 @@ static int qp_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 	case RES_OP_RESERVE:
 		count = get_param_l(&in_param);
 		align = get_param_h(&in_param);
-		err = __mlx4_qp_reserve_range(dev, count, align, &base);
+		err = mlx4_grant_resource(dev, slave, RES_QP, count, 0);
 		if (err)
 			return err;
 
+		err = __mlx4_qp_reserve_range(dev, count, align, &base);
+		if (err) {
+			mlx4_release_resource(dev, slave, RES_QP, count, 0);
+			return err;
+		}
+
 		err = add_res_range(dev, slave, base, count, RES_QP, 0);
 		if (err) {
+			mlx4_release_resource(dev, slave, RES_QP, count, 0);
 			__mlx4_qp_release_range(dev, base, count);
 			return err;
 		}
@@ -1452,15 +1539,24 @@ static int mtt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 		return err;
 
 	order = get_param_l(&in_param);
+
+	err = mlx4_grant_resource(dev, slave, RES_MTT, 1 << order, 0);
+	if (err)
+		return err;
+
 	base = __mlx4_alloc_mtt_range(dev, order);
-	if (base == -1)
+	if (base == -1) {
+		mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0);
 		return -ENOMEM;
+	}
 
 	err = add_res_range(dev, slave, base, 1, RES_MTT, order);
-	if (err)
+	if (err) {
+		mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0);
 		__mlx4_free_mtt_range(dev, base, order);
-	else
+	} else {
 		set_param_l(out_param, base);
+	}
 
 	return err;
 }
@@ -1475,13 +1571,20 @@ static int mpt_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 
 	switch (op) {
 	case RES_OP_RESERVE:
+		err = mlx4_grant_resource(dev, slave, RES_MPT, 1, 0);
+		if (err)
+			break;
+
 		index = __mlx4_mpt_reserve(dev);
-		if (index == -1)
+		if (index == -1) {
+			mlx4_release_resource(dev, slave, RES_MPT, 1, 0);
 			break;
+		}
 		id = index & mpt_mask(dev);
 
 		err = add_res_range(dev, slave, id, 1, RES_MPT, index);
 		if (err) {
+			mlx4_release_resource(dev, slave, RES_MPT, 1, 0);
 			__mlx4_mpt_release(dev, index);
 			break;
 		}
@@ -1515,12 +1618,19 @@ static int cq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 
 	switch (op) {
 	case RES_OP_RESERVE_AND_MAP:
-		err = __mlx4_cq_alloc_icm(dev, &cqn);
+		err = mlx4_grant_resource(dev, slave, RES_CQ, 1, 0);
 		if (err)
 			break;
 
+		err = __mlx4_cq_alloc_icm(dev, &cqn);
+		if (err) {
+			mlx4_release_resource(dev, slave, RES_CQ, 1, 0);
+			break;
+		}
+
 		err = add_res_range(dev, slave, cqn, 1, RES_CQ, 0);
 		if (err) {
+			mlx4_release_resource(dev, slave, RES_CQ, 1, 0);
 			__mlx4_cq_free_icm(dev, cqn);
 			break;
 		}
@@ -1543,12 +1653,19 @@ static int srq_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 
 	switch (op) {
 	case RES_OP_RESERVE_AND_MAP:
-		err = __mlx4_srq_alloc_icm(dev, &srqn);
+		err = mlx4_grant_resource(dev, slave, RES_SRQ, 1, 0);
 		if (err)
 			break;
 
+		err = __mlx4_srq_alloc_icm(dev, &srqn);
+		if (err) {
+			mlx4_release_resource(dev, slave, RES_SRQ, 1, 0);
+			break;
+		}
+
 		err = add_res_range(dev, slave, srqn, 1, RES_SRQ, 0);
 		if (err) {
+			mlx4_release_resource(dev, slave, RES_SRQ, 1, 0);
 			__mlx4_srq_free_icm(dev, srqn);
 			break;
 		}
@@ -1569,9 +1686,13 @@ static int mac_add_to_slave(struct mlx4_dev *dev, int slave, u64 mac, int port)
 	struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker;
 	struct mac_res *res;
 
+	if (mlx4_grant_resource(dev, slave, RES_MAC, 1, port))
+		return -EINVAL;
 	res = kzalloc(sizeof *res, GFP_KERNEL);
-	if (!res)
+	if (!res) {
+		mlx4_release_resource(dev, slave, RES_MAC, 1, port);
 		return -ENOMEM;
+	}
 	res->mac = mac;
 	res->port = (u8) port;
 	list_add_tail(&res->list,
@@ -1591,6 +1712,7 @@ static void mac_del_from_slave(struct mlx4_dev *dev, int slave, u64 mac,
 	list_for_each_entry_safe(res, tmp, mac_list, list) {
 		if (res->mac == mac && res->port == (u8) port) {
 			list_del(&res->list);
+			mlx4_release_resource(dev, slave, RES_MAC, 1, port);
 			kfree(res);
 			break;
 		}
@@ -1608,6 +1730,7 @@ static void rem_slave_macs(struct mlx4_dev *dev, int slave)
 	list_for_each_entry_safe(res, tmp, mac_list, list) {
 		list_del(&res->list);
 		__mlx4_unregister_mac(dev, res->port, res->mac);
+		mlx4_release_resource(dev, slave, RES_MAC, 1, res->port);
 		kfree(res);
 	}
 }
@@ -1656,9 +1779,13 @@ static int vlan_add_to_slave(struct mlx4_dev *dev, int slave, u16 vlan,
 		}
 	}
 
+	if (mlx4_grant_resource(dev, slave, RES_VLAN, 1, port))
+		return -EINVAL;
 	res = kzalloc(sizeof(*res), GFP_KERNEL);
-	if (!res)
+	if (!res) {
+		mlx4_release_resource(dev, slave, RES_VLAN, 1, port);
 		return -ENOMEM;
+	}
 	res->vlan = vlan;
 	res->port = (u8) port;
 	res->vlan_index = vlan_index;
@@ -1682,6 +1809,8 @@ static void vlan_del_from_slave(struct mlx4_dev *dev, int slave, u16 vlan,
 		if (res->vlan == vlan && res->port == (u8) port) {
 			if (!--res->ref_count) {
 				list_del(&res->list);
+				mlx4_release_resource(dev, slave, RES_VLAN,
+						      1, port);
 				kfree(res);
 			}
 			break;
@@ -1703,6 +1832,7 @@ static void rem_slave_vlans(struct mlx4_dev *dev, int slave)
 		/* dereference the vlan the num times the slave referenced it */
 		for (i = 0; i < res->ref_count; i++)
 			__mlx4_unregister_vlan(dev, res->port, res->vlan);
+		mlx4_release_resource(dev, slave, RES_VLAN, 1, res->port);
 		kfree(res);
 	}
 }
@@ -1749,15 +1879,23 @@ static int counter_alloc_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 	if (op != RES_OP_RESERVE)
 		return -EINVAL;
 
-	err = __mlx4_counter_alloc(dev, &index);
+	err = mlx4_grant_resource(dev, slave, RES_COUNTER, 1, 0);
 	if (err)
 		return err;
 
+	err = __mlx4_counter_alloc(dev, &index);
+	if (err) {
+		mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0);
+		return err;
+	}
+
 	err = add_res_range(dev, slave, index, 1, RES_COUNTER, 0);
-	if (err)
+	if (err) {
 		__mlx4_counter_free(dev, index);
-	else
+		mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0);
+	} else {
 		set_param_l(out_param, index);
+	}
 
 	return err;
 }
@@ -1864,6 +2002,7 @@ static int qp_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 		err = rem_res_range(dev, slave, base, count, RES_QP, 0);
 		if (err)
 			break;
+		mlx4_release_resource(dev, slave, RES_QP, count, 0);
 		__mlx4_qp_release_range(dev, base, count);
 		break;
 	case RES_OP_MAP_ICM:
@@ -1901,8 +2040,10 @@ static int mtt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 	base = get_param_l(&in_param);
 	order = get_param_h(&in_param);
 	err = rem_res_range(dev, slave, base, 1, RES_MTT, order);
-	if (!err)
+	if (!err) {
+		mlx4_release_resource(dev, slave, RES_MTT, 1 << order, 0);
 		__mlx4_free_mtt_range(dev, base, order);
+	}
 	return err;
 }
 
@@ -1927,6 +2068,7 @@ static int mpt_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 		err = rem_res_range(dev, slave, id, 1, RES_MPT, 0);
 		if (err)
 			break;
+		mlx4_release_resource(dev, slave, RES_MPT, 1, 0);
 		__mlx4_mpt_release(dev, index);
 		break;
 	case RES_OP_MAP_ICM:
@@ -1961,6 +2103,7 @@ static int cq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 		if (err)
 			break;
 
+		mlx4_release_resource(dev, slave, RES_CQ, 1, 0);
 		__mlx4_cq_free_icm(dev, cqn);
 		break;
 
@@ -1985,6 +2128,7 @@ static int srq_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 		if (err)
 			break;
 
+		mlx4_release_resource(dev, slave, RES_SRQ, 1, 0);
 		__mlx4_srq_free_icm(dev, srqn);
 		break;
 
@@ -2056,6 +2200,7 @@ static int counter_free_res(struct mlx4_dev *dev, int slave, int op, int cmd,
 		return err;
 
 	__mlx4_counter_free(dev, index);
+	mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0);
 
 	return err;
 }
@@ -3785,6 +3930,11 @@ static void rem_slave_qps(struct mlx4_dev *dev, int slave)
 						 &tracker->res_tree[RES_QP]);
 					list_del(&qp->com.list);
 					spin_unlock_irq(mlx4_tlock(dev));
+					if (!valid_reserved(dev, slave, qpn)) {
+						__mlx4_qp_release_range(dev, qpn, 1);
+						mlx4_release_resource(dev, slave,
+								      RES_QP, 1, 0);
+					}
 					kfree(qp);
 					state = 0;
 					break;
@@ -3856,6 +4006,8 @@ static void rem_slave_srqs(struct mlx4_dev *dev, int slave)
 						 &tracker->res_tree[RES_SRQ]);
 					list_del(&srq->com.list);
 					spin_unlock_irq(mlx4_tlock(dev));
+					mlx4_release_resource(dev, slave,
+							      RES_SRQ, 1, 0);
 					kfree(srq);
 					state = 0;
 					break;
@@ -3922,6 +4074,8 @@ static void rem_slave_cqs(struct mlx4_dev *dev, int slave)
 						 &tracker->res_tree[RES_CQ]);
 					list_del(&cq->com.list);
 					spin_unlock_irq(mlx4_tlock(dev));
+					mlx4_release_resource(dev, slave,
+							      RES_CQ, 1, 0);
 					kfree(cq);
 					state = 0;
 					break;
@@ -3985,6 +4139,8 @@ static void rem_slave_mrs(struct mlx4_dev *dev, int slave)
 						 &tracker->res_tree[RES_MPT]);
 					list_del(&mpt->com.list);
 					spin_unlock_irq(mlx4_tlock(dev));
+					mlx4_release_resource(dev, slave,
+							      RES_MPT, 1, 0);
 					kfree(mpt);
 					state = 0;
 					break;
@@ -4054,6 +4210,8 @@ static void rem_slave_mtts(struct mlx4_dev *dev, int slave)
 						 &tracker->res_tree[RES_MTT]);
 					list_del(&mtt->com.list);
 					spin_unlock_irq(mlx4_tlock(dev));
+					mlx4_release_resource(dev, slave, RES_MTT,
+							      1 << mtt->order, 0);
 					kfree(mtt);
 					state = 0;
 					break;
@@ -4212,6 +4370,7 @@ static void rem_slave_counters(struct mlx4_dev *dev, int slave)
 			list_del(&counter->com.list);
 			kfree(counter);
 			__mlx4_counter_free(dev, index);
+			mlx4_release_resource(dev, slave, RES_COUNTER, 1, 0);
 		}
 	}
 	spin_unlock_irq(mlx4_tlock(dev));
-- 
cgit 


From 3da580aab9482f5bf88ea79a4bf0a511eea6fa44 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@redhat.com>
Date: Sat, 2 Nov 2013 06:57:18 -0400
Subject: nfs: set security label when revalidating inode

Currently, we fetch the security label when revalidating an inode's
attributes, but don't apply it. This is in contrast to the readdir()
codepath where we do apply label changes.

Cc: Dave Quigley <dpquigl@davequigley.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/inode.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 471ba59c42f9..26e77d81234e 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -923,6 +923,8 @@ __nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
 	if (nfsi->cache_validity & NFS_INO_INVALID_ACL)
 		nfs_zap_acl_cache(inode);
 
+	nfs_setsecurity(inode, fattr, label);
+
 	dfprintk(PAGECACHE, "NFS: (%s/%Ld) revalidation complete\n",
 		inode->i_sb->s_id,
 		(long long)NFS_FILEID(inode));
-- 
cgit 


From d204c5d2b8f7614350cd4609f4d4cdcf25494d74 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Mon, 4 Nov 2013 13:23:59 -0500
Subject: NFSv4.2: encode_readdir - only ask for labels when doing readdirplus

Currently, if the server is doing NFSv4.2 and supports labeled NFS, then
our on-the-wire READDIR request ends up asking for the label information,
which is then ignored unless we're doing readdirplus.
This patch ensures that READDIR doesn't ask the server for label information
at all unless the readdir->bitmask contains the FATTR4_WORD2_SECURITY_LABEL
attribute, and the readdir->plus flag is set.

While we're at it, optimise away the 3rd bitmap field if it is zero.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4xdr.c | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index f903389d90f1..5be2868c02f1 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -105,12 +105,8 @@ static int nfs4_stat_to_errno(int);
 #ifdef CONFIG_NFS_V4_SECURITY_LABEL
 /* PI(4 bytes) + LFS(4 bytes) + 1(for null terminator?) + MAXLABELLEN */
 #define	nfs4_label_maxsz	(4 + 4 + 1 + XDR_QUADLEN(NFS4_MAXLABELLEN))
-#define encode_readdir_space 24
-#define encode_readdir_bitmask_sz 3
 #else
 #define	nfs4_label_maxsz	0
-#define encode_readdir_space 20
-#define encode_readdir_bitmask_sz 2
 #endif
 /* We support only one layout type per file system */
 #define decode_mdsthreshold_maxsz (1 + 1 + nfs4_fattr_bitmap_maxsz + 1 + 8)
@@ -1581,6 +1577,8 @@ static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg
 	};
 	uint32_t dircount = readdir->count >> 1;
 	__be32 *p, verf[2];
+	uint32_t attrlen = 0;
+	unsigned int i;
 
 	if (readdir->plus) {
 		attrs[0] |= FATTR4_WORD0_TYPE|FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE|
@@ -1589,26 +1587,27 @@ static void encode_readdir(struct xdr_stream *xdr, const struct nfs4_readdir_arg
 			FATTR4_WORD1_OWNER_GROUP|FATTR4_WORD1_RAWDEV|
 			FATTR4_WORD1_SPACE_USED|FATTR4_WORD1_TIME_ACCESS|
 			FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY;
+		attrs[2] |= FATTR4_WORD2_SECURITY_LABEL;
 		dircount >>= 1;
 	}
 	/* Use mounted_on_fileid only if the server supports it */
 	if (!(readdir->bitmask[1] & FATTR4_WORD1_MOUNTED_ON_FILEID))
 		attrs[0] |= FATTR4_WORD0_FILEID;
+	for (i = 0; i < ARRAY_SIZE(attrs); i++) {
+		attrs[i] &= readdir->bitmask[i];
+		if (attrs[i] != 0)
+			attrlen = i+1;
+	}
 
 	encode_op_hdr(xdr, OP_READDIR, decode_readdir_maxsz, hdr);
 	encode_uint64(xdr, readdir->cookie);
 	encode_nfs4_verifier(xdr, &readdir->verifier);
-	p = reserve_space(xdr, encode_readdir_space);
+	p = reserve_space(xdr, 12 + (attrlen << 2));
 	*p++ = cpu_to_be32(dircount);
 	*p++ = cpu_to_be32(readdir->count);
-	*p++ = cpu_to_be32(encode_readdir_bitmask_sz);
-	*p++ = cpu_to_be32(attrs[0] & readdir->bitmask[0]);
-	*p   = cpu_to_be32(attrs[1] & readdir->bitmask[1]);
-	if (encode_readdir_bitmask_sz > 2) {
-		if (hdr->minorversion > 1)
-			attrs[2] |= FATTR4_WORD2_SECURITY_LABEL;
-		p++, *p++ = cpu_to_be32(attrs[2] & readdir->bitmask[2]);
-	}
+	*p++ = cpu_to_be32(attrlen);
+	for (i = 0; i < attrlen; i++)
+		*p++ = cpu_to_be32(attrs[i]);
 	memcpy(verf, readdir->verifier.data, sizeof(verf));
 
 	dprintk("%s: cookie = %llu, verifier = %08x:%08x, bitmap = %08x:%08x:%08x\n",
-- 
cgit 


From b944dba31d2c23f1cf5d69a66cc3449e0ba78503 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Mon, 4 Nov 2013 15:20:20 -0500
Subject: NFSv4: Sanity check the server reply in _nfs4_server_capabilities

We don't want to be setting capabilities and/or requesting attributes
that are not appropriate for the NFSv4 minor version.

- Ensure that we clear the NFS_CAP_SECURITY_LABEL capability when appropriate
- Ensure that we limit the attribute bitmasks to the mounted_on_fileid
  attribute and less for NFSv4.0
- Ensure that we limit the attribute bitmasks to suppattr_exclcreat and
  less for NFSv4.1
- Ensure that we limit it to change_sec_label or less for NFSv4.2

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4proc.c    | 25 ++++++++++++++++++++-----
 include/linux/nfs4.h |  2 ++
 2 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 7e28b5c77cbc..ed2a0e6b9aed 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2706,6 +2706,10 @@ static void nfs4_close_context(struct nfs_open_context *ctx, int is_sync)
 		nfs4_close_state(ctx->state, ctx->mode);
 }
 
+#define FATTR4_WORD1_NFS40_MASK (2*FATTR4_WORD1_MOUNTED_ON_FILEID - 1UL)
+#define FATTR4_WORD2_NFS41_MASK (2*FATTR4_WORD2_SUPPATTR_EXCLCREAT - 1UL)
+#define FATTR4_WORD2_NFS42_MASK (2*FATTR4_WORD2_CHANGE_SECURITY_LABEL - 1UL)
+
 static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle)
 {
 	struct nfs4_server_caps_arg args = {
@@ -2721,12 +2725,25 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f
 
 	status = nfs4_call_sync(server->client, server, &msg, &args.seq_args, &res.seq_res, 0);
 	if (status == 0) {
+		/* Sanity check the server answers */
+		switch (server->nfs_client->cl_minorversion) {
+		case 0:
+			res.attr_bitmask[1] &= FATTR4_WORD1_NFS40_MASK;
+			res.attr_bitmask[2] = 0;
+			break;
+		case 1:
+			res.attr_bitmask[2] &= FATTR4_WORD2_NFS41_MASK;
+			break;
+		case 2:
+			res.attr_bitmask[2] &= FATTR4_WORD2_NFS42_MASK;
+		}
 		memcpy(server->attr_bitmask, res.attr_bitmask, sizeof(server->attr_bitmask));
 		server->caps &= ~(NFS_CAP_ACLS|NFS_CAP_HARDLINKS|
 				NFS_CAP_SYMLINKS|NFS_CAP_FILEID|
 				NFS_CAP_MODE|NFS_CAP_NLINK|NFS_CAP_OWNER|
 				NFS_CAP_OWNER_GROUP|NFS_CAP_ATIME|
-				NFS_CAP_CTIME|NFS_CAP_MTIME);
+				NFS_CAP_CTIME|NFS_CAP_MTIME|
+				NFS_CAP_SECURITY_LABEL);
 		if (res.attr_bitmask[0] & FATTR4_WORD0_ACL)
 			server->caps |= NFS_CAP_ACLS;
 		if (res.has_links != 0)
@@ -2755,14 +2772,12 @@ static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *f
 #endif
 		memcpy(server->attr_bitmask_nl, res.attr_bitmask,
 				sizeof(server->attr_bitmask));
+		server->attr_bitmask_nl[2] &= ~FATTR4_WORD2_SECURITY_LABEL;
 
-		if (server->caps & NFS_CAP_SECURITY_LABEL) {
-			server->attr_bitmask_nl[2] &= ~FATTR4_WORD2_SECURITY_LABEL;
-			res.attr_bitmask[2] &= ~FATTR4_WORD2_SECURITY_LABEL;
-		}
 		memcpy(server->cache_consistency_bitmask, res.attr_bitmask, sizeof(server->cache_consistency_bitmask));
 		server->cache_consistency_bitmask[0] &= FATTR4_WORD0_CHANGE|FATTR4_WORD0_SIZE;
 		server->cache_consistency_bitmask[1] &= FATTR4_WORD1_TIME_METADATA|FATTR4_WORD1_TIME_MODIFY;
+		server->cache_consistency_bitmask[2] = 0;
 		server->acl_bitmask = res.acl_bitmask;
 		server->fh_expire_type = res.fh_expire_type;
 	}
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index bfe6c379a24e..c6f41b616965 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -396,6 +396,8 @@ enum lock_type4 {
 #define FATTR4_WORD2_LAYOUT_BLKSIZE     (1UL << 1)
 #define FATTR4_WORD2_MDSTHRESHOLD       (1UL << 4)
 #define FATTR4_WORD2_SECURITY_LABEL     (1UL << 16)
+#define FATTR4_WORD2_CHANGE_SECURITY_LABEL \
+					(1UL << 17)
 
 /* MDS threshold bitmap bits */
 #define THRESHOLD_RD                    (1UL << 0)
-- 
cgit 


From fab99ebe39fe7d11fbd9b5fb84f07432af9ba36f Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Mon, 4 Nov 2013 13:46:40 -0500
Subject: NFSv4.2: Remove redundant checks in
 nfs_setsecurity+nfs4_label_init_security

We already check for nfs_server_capable(inode, NFS_CAP_SECURITY_LABEL)
in nfs4_label_alloc()
We check the minor version in _nfs4_server_capabilities before setting
NFS_CAP_SECURITY_LABEL.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/inode.c    | 6 ------
 fs/nfs/nfs4proc.c | 3 ---
 2 files changed, 9 deletions(-)

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 26e77d81234e..18ab2da4eeb6 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -274,12 +274,6 @@ void nfs_setsecurity(struct inode *inode, struct nfs_fattr *fattr,
 	if (label == NULL)
 		return;
 
-	if (nfs_server_capable(inode, NFS_CAP_SECURITY_LABEL) == 0)
-		return;
-
-	if (NFS_SERVER(inode)->nfs_client->cl_minorversion < 2)
-		return;
-
 	if ((fattr->valid & NFS_ATTR_FATTR_V4_SECURITY_LABEL) && inode->i_security) {
 		error = security_inode_notifysecctx(inode, label->label,
 				label->len);
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index ed2a0e6b9aed..5ab33c0792df 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -105,9 +105,6 @@ nfs4_label_init_security(struct inode *dir, struct dentry *dentry,
 	if (nfs_server_capable(dir, NFS_CAP_SECURITY_LABEL) == 0)
 		return NULL;
 
-	if (NFS_SERVER(dir)->nfs_client->cl_minorversion < 2)
-		return NULL;
-
 	err = security_dentry_init_security(dentry, sattr->ia_mode,
 				&dentry->d_name, (void **)&label->label, &label->len);
 	if (err == 0)
-- 
cgit 


From a72b8859fd3941cc1d2940d5c43026d2c6fb959e Mon Sep 17 00:00:00 2001
From: Robert Richter <robert.richter@linaro.org>
Date: Thu, 10 Oct 2013 18:23:38 +0200
Subject: edac, highbank: Fix interrupt setup of mem and l2 controller

Register and enable interrupts after the edac registration. Otherwise
incomming ecc error interrupts lead to crashes during device setup.

Fixing this in drivers for mc and l2.

Signed-off-by: Robert Richter <robert.richter@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Cc: stable <stable@vger.kernel.org>     # 3.6+
Signed-off-by: Robert Richter <rric@kernel.org>
---
 drivers/edac/highbank_l2_edac.c | 18 ++++++++++--------
 drivers/edac/highbank_mc_edac.c | 18 ++++++++++--------
 2 files changed, 20 insertions(+), 16 deletions(-)

diff --git a/drivers/edac/highbank_l2_edac.c b/drivers/edac/highbank_l2_edac.c
index c2bd8c6a4349..10d3d298b640 100644
--- a/drivers/edac/highbank_l2_edac.c
+++ b/drivers/edac/highbank_l2_edac.c
@@ -90,28 +90,30 @@ static int highbank_l2_err_probe(struct platform_device *pdev)
 		goto err;
 	}
 
+	dci->mod_name = dev_name(&pdev->dev);
+	dci->dev_name = dev_name(&pdev->dev);
+
+	if (edac_device_add_device(dci))
+		goto err;
+
 	drvdata->db_irq = platform_get_irq(pdev, 0);
 	res = devm_request_irq(&pdev->dev, drvdata->db_irq,
 			       highbank_l2_err_handler,
 			       0, dev_name(&pdev->dev), dci);
 	if (res < 0)
-		goto err;
+		goto err2;
 
 	drvdata->sb_irq = platform_get_irq(pdev, 1);
 	res = devm_request_irq(&pdev->dev, drvdata->sb_irq,
 			       highbank_l2_err_handler,
 			       0, dev_name(&pdev->dev), dci);
 	if (res < 0)
-		goto err;
-
-	dci->mod_name = dev_name(&pdev->dev);
-	dci->dev_name = dev_name(&pdev->dev);
-
-	if (edac_device_add_device(dci))
-		goto err;
+		goto err2;
 
 	devres_close_group(&pdev->dev, NULL);
 	return 0;
+err2:
+	edac_device_del_device(&pdev->dev);
 err:
 	devres_release_group(&pdev->dev, NULL);
 	edac_device_free_ctl_info(dci);
diff --git a/drivers/edac/highbank_mc_edac.c b/drivers/edac/highbank_mc_edac.c
index 4695dd2d71fd..7a78307588bc 100644
--- a/drivers/edac/highbank_mc_edac.c
+++ b/drivers/edac/highbank_mc_edac.c
@@ -189,14 +189,6 @@ static int highbank_mc_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	irq = platform_get_irq(pdev, 0);
-	res = devm_request_irq(&pdev->dev, irq, highbank_mc_err_handler,
-			       0, dev_name(&pdev->dev), mci);
-	if (res < 0) {
-		dev_err(&pdev->dev, "Unable to request irq %d\n", irq);
-		goto err;
-	}
-
 	mci->mtype_cap = MEM_FLAG_DDR3;
 	mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED;
 	mci->edac_cap = EDAC_FLAG_SECDED;
@@ -217,10 +209,20 @@ static int highbank_mc_probe(struct platform_device *pdev)
 	if (res < 0)
 		goto err;
 
+	irq = platform_get_irq(pdev, 0);
+	res = devm_request_irq(&pdev->dev, irq, highbank_mc_err_handler,
+			       0, dev_name(&pdev->dev), mci);
+	if (res < 0) {
+		dev_err(&pdev->dev, "Unable to request irq %d\n", irq);
+		goto err2;
+	}
+
 	highbank_mc_create_debugfs_nodes(mci);
 
 	devres_close_group(&pdev->dev, NULL);
 	return 0;
+err2:
+	edac_mc_del_mc(&pdev->dev);
 err:
 	devres_release_group(&pdev->dev, NULL);
 	edac_mc_free(mci);
-- 
cgit 


From c359c4157cf0d852387aff2f2d83fef039aadc2c Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 4 Nov 2013 15:58:56 +0300
Subject: netfilter: nft_compat: use _safe version of list_for_each

We need to use the _safe version of list_for_each_entry() here otherwise
we have a use after free bug.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nft_compat.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c
index 4811f762e060..a82667c64729 100644
--- a/net/netfilter/nft_compat.c
+++ b/net/netfilter/nft_compat.c
@@ -634,9 +634,9 @@ nft_match_select_ops(const struct nft_ctx *ctx,
 
 static void nft_match_release(void)
 {
-	struct nft_xt *nft_match;
+	struct nft_xt *nft_match, *tmp;
 
-	list_for_each_entry(nft_match, &nft_match_list, head)
+	list_for_each_entry_safe(nft_match, tmp, &nft_match_list, head)
 		kfree(nft_match);
 }
 
@@ -705,9 +705,9 @@ nft_target_select_ops(const struct nft_ctx *ctx,
 
 static void nft_target_release(void)
 {
-	struct nft_xt *nft_target;
+	struct nft_xt *nft_target, *tmp;
 
-	list_for_each_entry(nft_target, &nft_target_list, head)
+	list_for_each_entry_safe(nft_target, tmp, &nft_target_list, head)
 		kfree(nft_target);
 }
 
-- 
cgit 


From b78800baee494eaca1d8a9ca2d490704fcc49fa0 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Mon, 4 Nov 2013 17:46:04 -0500
Subject: Revert "nfsd: remove_stid can be incorporated into
 nfs4_put_delegation"

This reverts commit 7ebe40f20372688a627ad6c754bc0d1c05df58a9.  We forgot
the nfs4_put_delegation call in fs/nfsd/nfs4callback.c which should not
be unhashing the stateid.  This lead to warnings from the idr code when
we tried to removed id's twice.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/nfs4state.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index e03e8efff53f..0cceb99705c9 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -410,7 +410,6 @@ static void nfs4_free_stid(struct kmem_cache *slab, struct nfs4_stid *s)
 void
 nfs4_put_delegation(struct nfs4_delegation *dp)
 {
-	remove_stid(&dp->dl_stid);
 	if (atomic_dec_and_test(&dp->dl_count)) {
 		nfs4_free_stid(deleg_slab, &dp->dl_stid);
 		num_delegations--;
@@ -451,12 +450,14 @@ unhash_delegation(struct nfs4_delegation *dp)
 static void destroy_revoked_delegation(struct nfs4_delegation *dp)
 {
 	list_del_init(&dp->dl_recall_lru);
+	remove_stid(&dp->dl_stid);
 	nfs4_put_delegation(dp);
 }
 
 static void destroy_delegation(struct nfs4_delegation *dp)
 {
 	unhash_delegation(dp);
+	remove_stid(&dp->dl_stid);
 	nfs4_put_delegation(dp);
 }
 
@@ -3161,6 +3162,7 @@ nfs4_open_delegation(struct net *net, struct svc_fh *fh,
 	open->op_delegate_type = NFS4_OPEN_DELEGATE_READ;
 	return;
 out_free:
+	remove_stid(&dp->dl_stid);
 	nfs4_put_delegation(dp);
 out_no_deleg:
 	open->op_delegate_type = NFS4_OPEN_DELEGATE_NONE;
-- 
cgit 


From 982ac2a7b757708845df4339243a91ba180a5744 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Tue, 23 Jul 2013 14:04:44 -0500
Subject: ARM: dts: calxeda: move memory-controller node out of ecx-common.dtsi

The DDR controller is slightly different in ECX-2000 and ECX-1000, so we
need to have different nodes for each platform.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
[Device Tree documentation updated.]
Signed-off-by: Robert Richter <rric@kernel.org>
---
 Documentation/devicetree/bindings/arm/calxeda/mem-ctrlr.txt | 4 +++-
 arch/arm/boot/dts/ecx-2000.dts                              | 6 ++++++
 arch/arm/boot/dts/ecx-common.dtsi                           | 6 ------
 arch/arm/boot/dts/highbank.dts                              | 6 ++++++
 4 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/Documentation/devicetree/bindings/arm/calxeda/mem-ctrlr.txt b/Documentation/devicetree/bindings/arm/calxeda/mem-ctrlr.txt
index f770ac0893d4..049675944b78 100644
--- a/Documentation/devicetree/bindings/arm/calxeda/mem-ctrlr.txt
+++ b/Documentation/devicetree/bindings/arm/calxeda/mem-ctrlr.txt
@@ -1,7 +1,9 @@
 Calxeda DDR memory controller
 
 Properties:
-- compatible : Should be "calxeda,hb-ddr-ctrl"
+- compatible : Should be:
+  - "calxeda,hb-ddr-ctrl" for ECX-1000
+  - "calxeda,ecx-2000-ddr-ctrl" for ECX-2000
 - reg : Address and size for DDR controller registers.
 - interrupts : Interrupt for DDR controller.
 
diff --git a/arch/arm/boot/dts/ecx-2000.dts b/arch/arm/boot/dts/ecx-2000.dts
index 139b40cc3a23..2ccbb57fbfa8 100644
--- a/arch/arm/boot/dts/ecx-2000.dts
+++ b/arch/arm/boot/dts/ecx-2000.dts
@@ -85,6 +85,12 @@
 				<1 10 0xf08>;
 		};
 
+		memory-controller@fff00000 {
+			compatible = "calxeda,ecx-2000-ddr-ctrl";
+			reg = <0xfff00000 0x1000>;
+			interrupts = <0 91 4>;
+		};
+
 		intc: interrupt-controller@fff11000 {
 			compatible = "arm,cortex-a15-gic";
 			#interrupt-cells = <3>;
diff --git a/arch/arm/boot/dts/ecx-common.dtsi b/arch/arm/boot/dts/ecx-common.dtsi
index e8559b753c9d..f95988ff61d4 100644
--- a/arch/arm/boot/dts/ecx-common.dtsi
+++ b/arch/arm/boot/dts/ecx-common.dtsi
@@ -45,12 +45,6 @@
 			status = "disabled";
 		};
 
-		memory-controller@fff00000 {
-			compatible = "calxeda,hb-ddr-ctrl";
-			reg = <0xfff00000 0x1000>;
-			interrupts = <0 91 4>;
-		};
-
 		ipc@fff20000 {
 			compatible = "arm,pl320", "arm,primecell";
 			reg = <0xfff20000 0x1000>;
diff --git a/arch/arm/boot/dts/highbank.dts b/arch/arm/boot/dts/highbank.dts
index 6aad34ad9517..ed14aeac0566 100644
--- a/arch/arm/boot/dts/highbank.dts
+++ b/arch/arm/boot/dts/highbank.dts
@@ -86,6 +86,12 @@
 	soc {
 		ranges = <0x00000000 0x00000000 0xffffffff>;
 
+		memory-controller@fff00000 {
+			compatible = "calxeda,hb-ddr-ctrl";
+			reg = <0xfff00000 0x1000>;
+			interrupts = <0 91 4>;
+		};
+
 		timer@fff10600 {
 			compatible = "arm,cortex-a9-twd-timer";
 			reg = <0xfff10600 0x20>;
-- 
cgit 


From 0ec8579e16bfaed5587ae8bb02adcb089f29c397 Mon Sep 17 00:00:00 2001
From: Robert Richter <robert.richter@linaro.org>
Date: Thu, 10 Oct 2013 17:32:30 +0200
Subject: edac, highbank: Add Calxeda ECX-2000 support

Implement edac support for Calxeda ECX-2000.

The ECX-2000 memory controller is similar to Highbank but has
different register bases for error and interrupt registers. There is
an own device tree name "calxeda,ecx-2000-ddr-ctrl" for identification
and initialization of the ECX-2000 and its base addresses.

Signed-off-by: Robert Richter <robert.richter@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Robert Richter <rric@kernel.org>
---
 drivers/edac/highbank_mc_edac.c | 105 ++++++++++++++++++++++++++--------------
 1 file changed, 70 insertions(+), 35 deletions(-)

diff --git a/drivers/edac/highbank_mc_edac.c b/drivers/edac/highbank_mc_edac.c
index 7a78307588bc..79cb872eef5f 100644
--- a/drivers/edac/highbank_mc_edac.c
+++ b/drivers/edac/highbank_mc_edac.c
@@ -26,31 +26,40 @@
 #include "edac_module.h"
 
 /* DDR Ctrlr Error Registers */
-#define HB_DDR_ECC_OPT			0x128
-#define HB_DDR_ECC_U_ERR_ADDR		0x130
-#define HB_DDR_ECC_U_ERR_STAT		0x134
-#define HB_DDR_ECC_U_ERR_DATAL		0x138
-#define HB_DDR_ECC_U_ERR_DATAH		0x13c
-#define HB_DDR_ECC_C_ERR_ADDR		0x140
-#define HB_DDR_ECC_C_ERR_STAT		0x144
-#define HB_DDR_ECC_C_ERR_DATAL		0x148
-#define HB_DDR_ECC_C_ERR_DATAH		0x14c
-#define HB_DDR_ECC_INT_STATUS		0x180
-#define HB_DDR_ECC_INT_ACK		0x184
-#define HB_DDR_ECC_U_ERR_ID		0x424
-#define HB_DDR_ECC_C_ERR_ID		0x428
 
-#define HB_DDR_ECC_INT_STAT_CE		0x8
-#define HB_DDR_ECC_INT_STAT_DOUBLE_CE	0x10
-#define HB_DDR_ECC_INT_STAT_UE		0x20
-#define HB_DDR_ECC_INT_STAT_DOUBLE_UE	0x40
+#define HB_DDR_ECC_ERR_BASE		0x128
+#define MW_DDR_ECC_ERR_BASE		0x1b4
+
+#define HB_DDR_ECC_OPT			0x00
+#define HB_DDR_ECC_U_ERR_ADDR		0x08
+#define HB_DDR_ECC_U_ERR_STAT		0x0c
+#define HB_DDR_ECC_U_ERR_DATAL		0x10
+#define HB_DDR_ECC_U_ERR_DATAH		0x14
+#define HB_DDR_ECC_C_ERR_ADDR		0x18
+#define HB_DDR_ECC_C_ERR_STAT		0x1c
+#define HB_DDR_ECC_C_ERR_DATAL		0x20
+#define HB_DDR_ECC_C_ERR_DATAH		0x24
 
 #define HB_DDR_ECC_OPT_MODE_MASK	0x3
 #define HB_DDR_ECC_OPT_FWC		0x100
 #define HB_DDR_ECC_OPT_XOR_SHIFT	16
 
+/* DDR Ctrlr Interrupt Registers */
+
+#define HB_DDR_ECC_INT_BASE		0x180
+#define MW_DDR_ECC_INT_BASE		0x218
+
+#define HB_DDR_ECC_INT_STATUS		0x00
+#define HB_DDR_ECC_INT_ACK		0x04
+
+#define HB_DDR_ECC_INT_STAT_CE		0x8
+#define HB_DDR_ECC_INT_STAT_DOUBLE_CE	0x10
+#define HB_DDR_ECC_INT_STAT_UE		0x20
+#define HB_DDR_ECC_INT_STAT_DOUBLE_UE	0x40
+
 struct hb_mc_drvdata {
-	void __iomem *mc_vbase;
+	void __iomem *mc_err_base;
+	void __iomem *mc_int_base;
 };
 
 static irqreturn_t highbank_mc_err_handler(int irq, void *dev_id)
@@ -60,10 +69,10 @@ static irqreturn_t highbank_mc_err_handler(int irq, void *dev_id)
 	u32 status, err_addr;
 
 	/* Read the interrupt status register */
-	status = readl(drvdata->mc_vbase + HB_DDR_ECC_INT_STATUS);
+	status = readl(drvdata->mc_int_base + HB_DDR_ECC_INT_STATUS);
 
 	if (status & HB_DDR_ECC_INT_STAT_UE) {
-		err_addr = readl(drvdata->mc_vbase + HB_DDR_ECC_U_ERR_ADDR);
+		err_addr = readl(drvdata->mc_err_base + HB_DDR_ECC_U_ERR_ADDR);
 		edac_mc_handle_error(HW_EVENT_ERR_UNCORRECTED, mci, 1,
 				     err_addr >> PAGE_SHIFT,
 				     err_addr & ~PAGE_MASK, 0,
@@ -71,9 +80,9 @@ static irqreturn_t highbank_mc_err_handler(int irq, void *dev_id)
 				     mci->ctl_name, "");
 	}
 	if (status & HB_DDR_ECC_INT_STAT_CE) {
-		u32 syndrome = readl(drvdata->mc_vbase + HB_DDR_ECC_C_ERR_STAT);
+		u32 syndrome = readl(drvdata->mc_err_base + HB_DDR_ECC_C_ERR_STAT);
 		syndrome = (syndrome >> 8) & 0xff;
-		err_addr = readl(drvdata->mc_vbase + HB_DDR_ECC_C_ERR_ADDR);
+		err_addr = readl(drvdata->mc_err_base + HB_DDR_ECC_C_ERR_ADDR);
 		edac_mc_handle_error(HW_EVENT_ERR_CORRECTED, mci, 1,
 				     err_addr >> PAGE_SHIFT,
 				     err_addr & ~PAGE_MASK, syndrome,
@@ -82,7 +91,7 @@ static irqreturn_t highbank_mc_err_handler(int irq, void *dev_id)
 	}
 
 	/* clear the error, clears the interrupt */
-	writel(status, drvdata->mc_vbase + HB_DDR_ECC_INT_ACK);
+	writel(status, drvdata->mc_int_base + HB_DDR_ECC_INT_ACK);
 	return IRQ_HANDLED;
 }
 
@@ -104,10 +113,10 @@ static ssize_t highbank_mc_err_inject_write(struct file *file,
 	buf[buf_size] = 0;
 
 	if (!kstrtou8(buf, 16, &synd)) {
-		reg = readl(pdata->mc_vbase + HB_DDR_ECC_OPT);
+		reg = readl(pdata->mc_err_base + HB_DDR_ECC_OPT);
 		reg &= HB_DDR_ECC_OPT_MODE_MASK;
 		reg |= (synd << HB_DDR_ECC_OPT_XOR_SHIFT) | HB_DDR_ECC_OPT_FWC;
-		writel(reg, pdata->mc_vbase + HB_DDR_ECC_OPT);
+		writel(reg, pdata->mc_err_base + HB_DDR_ECC_OPT);
 	}
 
 	return count;
@@ -131,17 +140,46 @@ static void highbank_mc_create_debugfs_nodes(struct mem_ctl_info *mci)
 {}
 #endif
 
+struct hb_mc_settings {
+	int	err_offset;
+	int	int_offset;
+};
+
+static struct hb_mc_settings hb_settings = {
+	.err_offset = HB_DDR_ECC_ERR_BASE,
+	.int_offset = HB_DDR_ECC_INT_BASE,
+};
+
+static struct hb_mc_settings mw_settings = {
+	.err_offset = MW_DDR_ECC_ERR_BASE,
+	.int_offset = MW_DDR_ECC_INT_BASE,
+};
+
+static struct of_device_id hb_ddr_ctrl_of_match[] = {
+	{ .compatible = "calxeda,hb-ddr-ctrl",		.data = &hb_settings },
+	{ .compatible = "calxeda,ecx-2000-ddr-ctrl",	.data = &mw_settings },
+	{},
+};
+MODULE_DEVICE_TABLE(of, hb_ddr_ctrl_of_match);
+
 static int highbank_mc_probe(struct platform_device *pdev)
 {
+	const struct of_device_id *id;
+	const struct hb_mc_settings *settings;
 	struct edac_mc_layer layers[2];
 	struct mem_ctl_info *mci;
 	struct hb_mc_drvdata *drvdata;
 	struct dimm_info *dimm;
 	struct resource *r;
+	void __iomem *base;
 	u32 control;
 	int irq;
 	int res = 0;
 
+	id = of_match_device(hb_ddr_ctrl_of_match, &pdev->dev);
+	if (!id)
+		return -ENODEV;
+
 	layers[0].type = EDAC_MC_LAYER_CHIP_SELECT;
 	layers[0].size = 1;
 	layers[0].is_virt_csrow = true;
@@ -174,15 +212,18 @@ static int highbank_mc_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	drvdata->mc_vbase = devm_ioremap(&pdev->dev,
-					  r->start, resource_size(r));
-	if (!drvdata->mc_vbase) {
+	base = devm_ioremap(&pdev->dev, r->start, resource_size(r));
+	if (!base) {
 		dev_err(&pdev->dev, "Unable to map regs\n");
 		res = -ENOMEM;
 		goto err;
 	}
 
-	control = readl(drvdata->mc_vbase + HB_DDR_ECC_OPT) & 0x3;
+	settings = id->data;
+	drvdata->mc_err_base = base + settings->err_offset;
+	drvdata->mc_int_base = base + settings->int_offset;
+
+	control = readl(drvdata->mc_err_base + HB_DDR_ECC_OPT) & 0x3;
 	if (!control || (control == 0x2)) {
 		dev_err(&pdev->dev, "No ECC present, or ECC disabled\n");
 		res = -ENODEV;
@@ -238,12 +279,6 @@ static int highbank_mc_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static const struct of_device_id hb_ddr_ctrl_of_match[] = {
-	{ .compatible = "calxeda,hb-ddr-ctrl", },
-	{},
-};
-MODULE_DEVICE_TABLE(of, hb_ddr_ctrl_of_match);
-
 static struct platform_driver highbank_mc_edac_driver = {
 	.probe = highbank_mc_probe,
 	.remove = highbank_mc_remove,
-- 
cgit 


From 41ec0e8da05267120c99bd4f66277939fad81a07 Mon Sep 17 00:00:00 2001
From: Robert Richter <robert.richter@linaro.org>
Date: Thu, 10 Oct 2013 17:36:19 +0200
Subject: edac, highbank: Improve and unify naming

Assinging correct names of the 'hb_mc_edac' and 'hb_l2_edac' edac
modules for module, controller and device. Reported values for
Highbank in dmesg are now:

 EDAC MC0: Giving out device to module hb_mc_edac controller
 calxeda,hb-ddr-ctrl: DEV fff00000.memory-controller (INTERRUPT)

 EDAC DEVICE0: Giving out device to module hb_l2_edac controller
 calxeda,hb-sregs-l2-ecc: DEV fff3c200.sregs (INTERRUPT)

Signed-off-by: Robert Richter <robert.richter@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Robert Richter <rric@kernel.org>
---
 drivers/edac/highbank_l2_edac.c | 17 ++++++++++-------
 drivers/edac/highbank_mc_edac.c |  5 +++--
 2 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/drivers/edac/highbank_l2_edac.c b/drivers/edac/highbank_l2_edac.c
index 10d3d298b640..2f193668ebc7 100644
--- a/drivers/edac/highbank_l2_edac.c
+++ b/drivers/edac/highbank_l2_edac.c
@@ -50,8 +50,15 @@ static irqreturn_t highbank_l2_err_handler(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
+static const struct of_device_id hb_l2_err_of_match[] = {
+	{ .compatible = "calxeda,hb-sregs-l2-ecc", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, hb_l2_err_of_match);
+
 static int highbank_l2_err_probe(struct platform_device *pdev)
 {
+	const struct of_device_id *id;
 	struct edac_device_ctl_info *dci;
 	struct hb_l2_drvdata *drvdata;
 	struct resource *r;
@@ -90,7 +97,9 @@ static int highbank_l2_err_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	dci->mod_name = dev_name(&pdev->dev);
+	id = of_match_device(hb_l2_err_of_match, &pdev->dev);
+	dci->mod_name = pdev->dev.driver->name;
+	dci->ctl_name = id ? id->compatible : "unknown";
 	dci->dev_name = dev_name(&pdev->dev);
 
 	if (edac_device_add_device(dci))
@@ -129,12 +138,6 @@ static int highbank_l2_err_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static const struct of_device_id hb_l2_err_of_match[] = {
-	{ .compatible = "calxeda,hb-sregs-l2-ecc", },
-	{},
-};
-MODULE_DEVICE_TABLE(of, hb_l2_err_of_match);
-
 static struct platform_driver highbank_l2_edac_driver = {
 	.probe = highbank_l2_err_probe,
 	.remove = highbank_l2_err_remove,
diff --git a/drivers/edac/highbank_mc_edac.c b/drivers/edac/highbank_mc_edac.c
index 79cb872eef5f..82211915e3b0 100644
--- a/drivers/edac/highbank_mc_edac.c
+++ b/drivers/edac/highbank_mc_edac.c
@@ -233,9 +233,10 @@ static int highbank_mc_probe(struct platform_device *pdev)
 	mci->mtype_cap = MEM_FLAG_DDR3;
 	mci->edac_ctl_cap = EDAC_FLAG_NONE | EDAC_FLAG_SECDED;
 	mci->edac_cap = EDAC_FLAG_SECDED;
-	mci->mod_name = dev_name(&pdev->dev);
+	mci->mod_name = pdev->dev.driver->name;
 	mci->mod_ver = "1";
-	mci->ctl_name = dev_name(&pdev->dev);
+	mci->ctl_name = id->compatible;
+	mci->dev_name = dev_name(&pdev->dev);
 	mci->scrub_mode = SCRUB_SW_SRC;
 
 	/* Only a single 4GB DIMM is supported */
-- 
cgit 


From 7270a6085a20a9c6aecb0be8c70510702118dc71 Mon Sep 17 00:00:00 2001
From: Robert Richter <robert.richter@linaro.org>
Date: Thu, 10 Oct 2013 18:22:36 +0200
Subject: edac: Unify reporting of device info for device, mc and pci

Log messages slightly differ between edac subsystems. Unifying it.

Signed-off-by: Robert Richter <robert.richter@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Robert Richter <rric@kernel.org>
---
 drivers/edac/edac_device.c | 9 +++------
 drivers/edac/edac_mc.c     | 6 ++++--
 drivers/edac/edac_pci.c    | 8 +++-----
 3 files changed, 10 insertions(+), 13 deletions(-)

diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c
index 211021dfec73..102674346035 100644
--- a/drivers/edac/edac_device.c
+++ b/drivers/edac/edac_device.c
@@ -530,12 +530,9 @@ int edac_device_add_device(struct edac_device_ctl_info *edac_dev)
 
 	/* Report action taken */
 	edac_device_printk(edac_dev, KERN_INFO,
-				"Giving out device to module '%s' controller "
-				"'%s': DEV '%s' (%s)\n",
-				edac_dev->mod_name,
-				edac_dev->ctl_name,
-				edac_dev_name(edac_dev),
-				edac_op_state_to_string(edac_dev->op_state));
+		"Giving out device to module %s controller %s: DEV %s (%s)\n",
+		edac_dev->mod_name, edac_dev->ctl_name, edac_dev->dev_name,
+		edac_op_state_to_string(edac_dev->op_state));
 
 	mutex_unlock(&device_ctls_mutex);
 	return 0;
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 89e109022d78..e8c9ef03495b 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -788,8 +788,10 @@ int edac_mc_add_mc(struct mem_ctl_info *mci)
 	}
 
 	/* Report action taken */
-	edac_mc_printk(mci, KERN_INFO, "Giving out device to '%s' '%s':"
-		" DEV %s\n", mci->mod_name, mci->ctl_name, edac_dev_name(mci));
+	edac_mc_printk(mci, KERN_INFO,
+		"Giving out device to module %s controller %s: DEV %s (%s)\n",
+		mci->mod_name, mci->ctl_name, mci->dev_name,
+		edac_op_state_to_string(mci->op_state));
 
 	edac_mc_owner = mci->mod_name;
 
diff --git a/drivers/edac/edac_pci.c b/drivers/edac/edac_pci.c
index dd370f92ace3..2cf44b4db80c 100644
--- a/drivers/edac/edac_pci.c
+++ b/drivers/edac/edac_pci.c
@@ -358,11 +358,9 @@ int edac_pci_add_device(struct edac_pci_ctl_info *pci, int edac_idx)
 	}
 
 	edac_pci_printk(pci, KERN_INFO,
-			"Giving out device to module '%s' controller '%s':"
-			" DEV '%s' (%s)\n",
-			pci->mod_name,
-			pci->ctl_name,
-			edac_dev_name(pci), edac_op_state_to_string(pci->op_state));
+		"Giving out device to module %s controller %s: DEV %s (%s)\n",
+		pci->mod_name, pci->ctl_name, pci->dev_name,
+		edac_op_state_to_string(pci->op_state));
 
 	mutex_unlock(&edac_pci_ctls_mutex);
 	return 0;
-- 
cgit 


From 836dae5d0098ddb097468d5214919b122a301fc1 Mon Sep 17 00:00:00 2001
From: Robert Richter <rric@kernel.org>
Date: Fri, 18 Oct 2013 09:24:52 +0200
Subject: edac, highbank: Add MAINTAINERS entry

So taking over maintainership for the EDAC highbank driver.

Signed-off-by: Robert Richter <rric@kernel.org>
Acked-by: Borislav Petkov <bp@suse.de>
Acked-by: Rob Herring <rob.herring@calxeda.com>
---
 MAINTAINERS | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 3438384d270c..2d9ffd5ab132 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3047,6 +3047,14 @@ W:	bluesmoke.sourceforge.net
 S:	Maintained
 F:	drivers/edac/amd64_edac*
 
+EDAC-CALXEDA
+M:	Doug Thompson <dougthompson@xmission.com>
+M:	Robert Richter <rric@kernel.org>
+L:	linux-edac@vger.kernel.org
+W:	bluesmoke.sourceforge.net
+S:	Maintained
+F:	drivers/edac/highbank*
+
 EDAC-CAVIUM
 M:	Ralf Baechle <ralf@linux-mips.org>
 M:	David Daney <david.daney@cavium.com>
-- 
cgit 


From 78cfbf0bbf6e085fd71e156c6147d205fba29f2b Mon Sep 17 00:00:00 2001
From: Robert Richter <robert.richter@linaro.org>
Date: Tue, 29 Oct 2013 14:56:13 -0700
Subject: edac, highbank: Moving error injection to sysfs for edac

Always have the error injection i/f available, even if there is no
debugfs or EDAC_DEBUG enabled. We need this for testing production
kernels and environments.

Thus, the entry moves from:

 /sys/kernel/debug/edac/mc0/inject_ctrl

to:

 /sys/devices/system/edac/mc/mc0/inject_ctrl

No other changes of the interface.

Signed-off-by: Robert Richter <robert.richter@linaro.org>
Signed-off-by: Robert Richter <rric@kernel.org>
---
 drivers/edac/highbank_mc_edac.c | 55 +++++++++++++++--------------------------
 1 file changed, 20 insertions(+), 35 deletions(-)

diff --git a/drivers/edac/highbank_mc_edac.c b/drivers/edac/highbank_mc_edac.c
index 82211915e3b0..f784de1dc793 100644
--- a/drivers/edac/highbank_mc_edac.c
+++ b/drivers/edac/highbank_mc_edac.c
@@ -95,50 +95,34 @@ static irqreturn_t highbank_mc_err_handler(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-#ifdef CONFIG_EDAC_DEBUG
-static ssize_t highbank_mc_err_inject_write(struct file *file,
-				      const char __user *data,
-				      size_t count, loff_t *ppos)
+static void highbank_mc_err_inject(struct mem_ctl_info *mci, u8 synd)
 {
-	struct mem_ctl_info *mci = file->private_data;
 	struct hb_mc_drvdata *pdata = mci->pvt_info;
-	char buf[32];
-	size_t buf_size;
 	u32 reg;
+
+	reg = readl(pdata->mc_err_base + HB_DDR_ECC_OPT);
+	reg &= HB_DDR_ECC_OPT_MODE_MASK;
+	reg |= (synd << HB_DDR_ECC_OPT_XOR_SHIFT) | HB_DDR_ECC_OPT_FWC;
+	writel(reg, pdata->mc_err_base + HB_DDR_ECC_OPT);
+}
+
+#define to_mci(k) container_of(k, struct mem_ctl_info, dev)
+
+static ssize_t highbank_mc_inject_ctrl(struct device *dev,
+	struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct mem_ctl_info *mci = to_mci(dev);
 	u8 synd;
 
-	buf_size = min(count, (sizeof(buf)-1));
-	if (copy_from_user(buf, data, buf_size))
-		return -EFAULT;
-	buf[buf_size] = 0;
+	if (kstrtou8(buf, 16, &synd))
+		return -EINVAL;
 
-	if (!kstrtou8(buf, 16, &synd)) {
-		reg = readl(pdata->mc_err_base + HB_DDR_ECC_OPT);
-		reg &= HB_DDR_ECC_OPT_MODE_MASK;
-		reg |= (synd << HB_DDR_ECC_OPT_XOR_SHIFT) | HB_DDR_ECC_OPT_FWC;
-		writel(reg, pdata->mc_err_base + HB_DDR_ECC_OPT);
-	}
+	highbank_mc_err_inject(mci, synd);
 
 	return count;
 }
 
-static const struct file_operations highbank_mc_debug_inject_fops = {
-	.open = simple_open,
-	.write = highbank_mc_err_inject_write,
-	.llseek = generic_file_llseek,
-};
-
-static void highbank_mc_create_debugfs_nodes(struct mem_ctl_info *mci)
-{
-	if (mci->debugfs)
-		debugfs_create_file("inject_ctrl", S_IWUSR, mci->debugfs, mci,
-				    &highbank_mc_debug_inject_fops);
-;
-}
-#else
-static void highbank_mc_create_debugfs_nodes(struct mem_ctl_info *mci)
-{}
-#endif
+static DEVICE_ATTR(inject_ctrl, S_IWUSR, NULL, highbank_mc_inject_ctrl);
 
 struct hb_mc_settings {
 	int	err_offset;
@@ -259,7 +243,7 @@ static int highbank_mc_probe(struct platform_device *pdev)
 		goto err2;
 	}
 
-	highbank_mc_create_debugfs_nodes(mci);
+	device_create_file(&mci->dev, &dev_attr_inject_ctrl);
 
 	devres_close_group(&pdev->dev, NULL);
 	return 0;
@@ -275,6 +259,7 @@ static int highbank_mc_remove(struct platform_device *pdev)
 {
 	struct mem_ctl_info *mci = platform_get_drvdata(pdev);
 
+	device_remove_file(&mci->dev, &dev_attr_inject_ctrl);
 	edac_mc_del_mc(&pdev->dev);
 	edac_mc_free(mci);
 	return 0;
-- 
cgit 


From 44790a0b93d8481a8dc5bf6aa600941627b56d56 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Tue, 5 Nov 2013 10:09:11 +1100
Subject: powerpc/boot: Properly handle the base "of" boot wrapper

The wrapper script needs an explicit rule for the "of" boot
wrapper (generic wrapper, similar to pseries). Before
0c9fa29149d3726e14262aeb0c8461a948cc9d56 it was hanlded
implicitly by the statement:

platformo=$object/"$platform".o

But now that epapr.o needs to be added, that doesn't work
and an explicit rule must be added.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/boot/wrapper | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
index ac16e9984ecb..2e1af74a64be 100755
--- a/arch/powerpc/boot/wrapper
+++ b/arch/powerpc/boot/wrapper
@@ -147,6 +147,10 @@ link_address='0x400000'
 make_space=y
 
 case "$platform" in
+of)
+    platformo="$object/of.o $object/epapr.o"
+    make_space=n
+    ;;
 pseries)
     platformo="$object/of.o $object/epapr.o"
     link_address='0x4000000'
-- 
cgit 


From 9437eca18170008a085a61bf96c99f2d923b0393 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Mon, 4 Nov 2013 16:51:31 -0700
Subject: powerpc/pci: Use pci_is_pcie() to simplify code [fix]

Fix f0308261b1 ("powerpc/pci: Use pci_is_pcie() to simplify code").  I
accidentally merged v2 instead of v3, so this adds the difference.  Without
this, "cap" is the left-over PCI-X capability offset, and we're using it as
the PCIe capability offset.

[bhelgaas: extracted v2->v3 diff]
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 arch/powerpc/kernel/eeh.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
index 6ebbe545b7a5..db86f97a0e92 100644
--- a/arch/powerpc/kernel/eeh.c
+++ b/arch/powerpc/kernel/eeh.c
@@ -195,7 +195,7 @@ static size_t eeh_gather_pci_data(struct eeh_dev *edev, char * buf, size_t len)
 		       "EEH: PCI-E capabilities and status follow:\n");
 
 		for (i=0; i<=8; i++) {
-			eeh_ops->read_config(dn, cap+4*i, 4, &cfg);
+			eeh_ops->read_config(dn, dev->pcie_cap+4*i, 4, &cfg);
 			n += scnprintf(buf+n, len-n, "%02x:%x\n", 4*i, cfg);
 			printk(KERN_WARNING "EEH: PCI-E %02x: %08x\n", i, cfg);
 		}
-- 
cgit 


From 41a4e6e2a0237e8ac895f43158ef7c91ab7af157 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Thu, 31 Oct 2013 15:56:03 +0900
Subject: perf hists: Consolidate __hists__add_*entry()

The __hists__add_{branch,mem}_entry() does almost the same thing that
__hists__add_entry() does.  Consolidate them into one.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Rodrigo Campos <rodrigo@sdfg.com.ar>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1383202576-28141-2-git-send-email-namhyung@kernel.org
[ Fixup clash with new COMM infrastructure ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-annotate.c |  2 +-
 tools/perf/builtin-diff.c     |  3 +-
 tools/perf/builtin-report.c   | 16 ++++++---
 tools/perf/builtin-top.c      |  5 +--
 tools/perf/tests/hists_link.c |  6 ++--
 tools/perf/util/hist.c        | 75 ++++---------------------------------------
 tools/perf/util/hist.h        | 18 ++---------
 7 files changed, 30 insertions(+), 95 deletions(-)

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 6c5ae57831f6..4087ab19823c 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -65,7 +65,7 @@ static int perf_evsel__add_sample(struct perf_evsel *evsel,
 		return 0;
 	}
 
-	he = __hists__add_entry(&evsel->hists, al, NULL, 1, 1, 0);
+	he = __hists__add_entry(&evsel->hists, al, NULL, NULL, NULL, 1, 1, 0);
 	if (he == NULL)
 		return -ENOMEM;
 
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index b605009e803f..3b67ea2444bd 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -307,7 +307,8 @@ static int hists__add_entry(struct hists *hists,
 			    struct addr_location *al, u64 period,
 			    u64 weight, u64 transaction)
 {
-	if (__hists__add_entry(hists, al, NULL, period, weight, transaction) != NULL)
+	if (__hists__add_entry(hists, al, NULL, NULL, NULL, period, weight,
+			       transaction) != NULL)
 		return 0;
 	return -ENOMEM;
 }
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 25f83d5d66fd..8cf8e66ba594 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -115,7 +115,8 @@ static int perf_report__add_mem_hist_entry(struct perf_tool *tool,
 	 * and this is indirectly achieved by passing period=weight here
 	 * and the he_stat__add_period() function.
 	 */
-	he = __hists__add_mem_entry(&evsel->hists, al, parent, mi, cost, cost);
+	he = __hists__add_entry(&evsel->hists, al, parent, NULL, mi,
+				cost, cost, 0);
 	if (!he)
 		return -ENOMEM;
 
@@ -200,12 +201,16 @@ static int perf_report__add_branch_hist_entry(struct perf_tool *tool,
 
 		err = -ENOMEM;
 
+		/* overwrite the 'al' to branch-to info */
+		al->map = bi[i].to.map;
+		al->sym = bi[i].to.sym;
+		al->addr = bi[i].to.addr;
 		/*
 		 * The report shows the percentage of total branches captured
 		 * and not events sampled. Thus we use a pseudo period of 1.
 		 */
-		he = __hists__add_branch_entry(&evsel->hists, al, parent,
-				&bi[i], 1, 1);
+		he = __hists__add_entry(&evsel->hists, al, parent, &bi[i], NULL,
+					1, 1, 0);
 		if (he) {
 			struct annotation *notes;
 			bx = he->branch_info;
@@ -266,8 +271,9 @@ static int perf_evsel__add_hist_entry(struct perf_tool *tool,
 			return err;
 	}
 
-	he = __hists__add_entry(&evsel->hists, al, parent, sample->period,
-				sample->weight, sample->transaction);
+	he = __hists__add_entry(&evsel->hists, al, parent, NULL, NULL,
+				sample->period, sample->weight,
+				sample->transaction);
 	if (he == NULL)
 		return -ENOMEM;
 
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index ca5ca37980fb..21897f0ffcd3 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -246,8 +246,9 @@ static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel,
 	struct hist_entry *he;
 
 	pthread_mutex_lock(&evsel->hists.lock);
-	he = __hists__add_entry(&evsel->hists, al, NULL, sample->period,
-				sample->weight, sample->transaction);
+	he = __hists__add_entry(&evsel->hists, al, NULL, NULL, NULL,
+				sample->period, sample->weight,
+				sample->transaction);
 	pthread_mutex_unlock(&evsel->hists.lock);
 	if (he == NULL)
 		return NULL;
diff --git a/tools/perf/tests/hists_link.c b/tools/perf/tests/hists_link.c
index 6c337e653540..173bf42cc03e 100644
--- a/tools/perf/tests/hists_link.c
+++ b/tools/perf/tests/hists_link.c
@@ -223,7 +223,7 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
 				goto out;
 
 			he = __hists__add_entry(&evsel->hists, &al, NULL,
-						1, 1, 0);
+						NULL, NULL, 1, 1, 0);
 			if (he == NULL)
 				goto out;
 
@@ -245,8 +245,8 @@ static int add_hist_entries(struct perf_evlist *evlist, struct machine *machine)
 							  &sample) < 0)
 				goto out;
 
-			he = __hists__add_entry(&evsel->hists, &al, NULL, 1, 1,
-						0);
+			he = __hists__add_entry(&evsel->hists, &al, NULL,
+						NULL, NULL, 1, 1, 0);
 			if (he == NULL)
 				goto out;
 
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 30793f98c8bb..822903eaa201 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -407,73 +407,12 @@ out:
 	return he;
 }
 
-struct hist_entry *__hists__add_mem_entry(struct hists *hists,
-					  struct addr_location *al,
-					  struct symbol *sym_parent,
-					  struct mem_info *mi,
-					  u64 period,
-					  u64 weight)
-{
-	struct hist_entry entry = {
-		.thread	= al->thread,
-		.comm = thread__comm(al->thread),
-		.ms = {
-			.map	= al->map,
-			.sym	= al->sym,
-		},
-		.stat = {
-			.period	= period,
-			.weight = weight,
-			.nr_events = 1,
-		},
-		.cpu	= al->cpu,
-		.ip	= al->addr,
-		.level	= al->level,
-		.parent = sym_parent,
-		.filtered = symbol__parent_filter(sym_parent),
-		.hists = hists,
-		.mem_info = mi,
-		.branch_info = NULL,
-	};
-	return add_hist_entry(hists, &entry, al, period, weight);
-}
-
-struct hist_entry *__hists__add_branch_entry(struct hists *hists,
-					     struct addr_location *al,
-					     struct symbol *sym_parent,
-					     struct branch_info *bi,
-					     u64 period,
-					     u64 weight)
-{
-	struct hist_entry entry = {
-		.thread	= al->thread,
-		.comm = thread__comm(al->thread),
-		.ms = {
-			.map	= bi->to.map,
-			.sym	= bi->to.sym,
-		},
-		.cpu	= al->cpu,
-		.ip	= bi->to.addr,
-		.level	= al->level,
-		.stat = {
-			.period	= period,
-			.nr_events = 1,
-			.weight = weight,
-		},
-		.parent = sym_parent,
-		.filtered = symbol__parent_filter(sym_parent),
-		.branch_info = bi,
-		.hists	= hists,
-		.mem_info = NULL,
-	};
-
-	return add_hist_entry(hists, &entry, al, period, weight);
-}
-
 struct hist_entry *__hists__add_entry(struct hists *hists,
 				      struct addr_location *al,
-				      struct symbol *sym_parent, u64 period,
-				      u64 weight, u64 transaction)
+				      struct symbol *sym_parent,
+				      struct branch_info *bi,
+				      struct mem_info *mi,
+				      u64 period, u64 weight, u64 transaction)
 {
 	struct hist_entry entry = {
 		.thread	= al->thread,
@@ -486,15 +425,15 @@ struct hist_entry *__hists__add_entry(struct hists *hists,
 		.ip	= al->addr,
 		.level	= al->level,
 		.stat = {
-			.period	= period,
 			.nr_events = 1,
+			.period	= period,
 			.weight = weight,
 		},
 		.parent = sym_parent,
 		.filtered = symbol__parent_filter(sym_parent),
 		.hists	= hists,
-		.branch_info = NULL,
-		.mem_info = NULL,
+		.branch_info = bi,
+		.mem_info = mi,
 		.transaction = transaction,
 	};
 
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 9d2d022cdb79..307f1c742563 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -86,7 +86,9 @@ struct hists {
 
 struct hist_entry *__hists__add_entry(struct hists *self,
 				      struct addr_location *al,
-				      struct symbol *parent, u64 period,
+				      struct symbol *parent,
+				      struct branch_info *bi,
+				      struct mem_info *mi, u64 period,
 				      u64 weight, u64 transaction);
 int64_t hist_entry__cmp(struct hist_entry *left, struct hist_entry *right);
 int64_t hist_entry__collapse(struct hist_entry *left, struct hist_entry *right);
@@ -95,20 +97,6 @@ int hist_entry__sort_snprintf(struct hist_entry *self, char *bf, size_t size,
 			      struct hists *hists);
 void hist_entry__free(struct hist_entry *);
 
-struct hist_entry *__hists__add_branch_entry(struct hists *self,
-					     struct addr_location *al,
-					     struct symbol *sym_parent,
-					     struct branch_info *bi,
-					     u64 period,
-					     u64 weight);
-
-struct hist_entry *__hists__add_mem_entry(struct hists *self,
-					  struct addr_location *al,
-					  struct symbol *sym_parent,
-					  struct mem_info *mi,
-					  u64 period,
-					  u64 weight);
-
 void hists__output_resort(struct hists *self);
 void hists__collapse_resort(struct hists *self, struct ui_progress *prog);
 
-- 
cgit 


From 0d41cca490c274352211efac50e9598d39a9dc80 Mon Sep 17 00:00:00 2001
From: Yuchung Cheng <ycheng@google.com>
Date: Thu, 31 Oct 2013 09:19:32 -0700
Subject: tcp: enable sockets to use MSG_FASTOPEN by default

Applications have started to use Fast Open (e.g., Chrome browser has
such an optional flag) and the feature has gone through several
generations of kernels since 3.7 with many real network tests. It's
time to enable this flag by default for applications to test more
conveniently and extensively.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 Documentation/networking/ip-sysctl.txt | 4 ++--
 net/ipv4/tcp_fastopen.c                | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index a46d78583ae1..6c0098359ca6 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -451,7 +451,7 @@ tcp_fastopen - INTEGER
 	connect() to perform a TCP handshake automatically.
 
 	The values (bitmap) are
-	1: Enables sending data in the opening SYN on the client.
+	1: Enables sending data in the opening SYN on the client w/ MSG_FASTOPEN.
 	2: Enables TCP Fast Open on the server side, i.e., allowing data in
 	   a SYN packet to be accepted and passed to the application before
 	   3-way hand shake finishes.
@@ -464,7 +464,7 @@ tcp_fastopen - INTEGER
 	   different ways of setting max_qlen without the TCP_FASTOPEN socket
 	   option.
 
-	Default: 0
+	Default: 1
 
 	Note that the client & server side Fast Open flags (1 and 2
 	respectively) must be also enabled before the rest of flags can take
diff --git a/net/ipv4/tcp_fastopen.c b/net/ipv4/tcp_fastopen.c
index 766032b4a6c3..f195d9316e55 100644
--- a/net/ipv4/tcp_fastopen.c
+++ b/net/ipv4/tcp_fastopen.c
@@ -8,7 +8,7 @@
 #include <net/inetpeer.h>
 #include <net/tcp.h>
 
-int sysctl_tcp_fastopen __read_mostly;
+int sysctl_tcp_fastopen __read_mostly = TFO_CLIENT_ENABLE;
 
 struct tcp_fastopen_context __rcu *tcp_fastopen_ctx;
 
-- 
cgit 


From 9f9843a751d0a2057f9f3d313886e7e5e6ebaac9 Mon Sep 17 00:00:00 2001
From: Yuchung Cheng <ycheng@google.com>
Date: Thu, 31 Oct 2013 11:07:31 -0700
Subject: tcp: properly handle stretch acks in slow start

Slow start now increases cwnd by 1 if an ACK acknowledges some packets,
regardless the number of packets. Consequently slow start performance
is highly dependent on the degree of the stretch ACKs caused by
receiver or network ACK compression mechanisms (e.g., delayed-ACK,
GRO, etc).  But slow start algorithm is to send twice the amount of
packets of packets left so it should process a stretch ACK of degree
N as if N ACKs of degree 1, then exits when cwnd exceeds ssthresh. A
follow up patch will use the remainder of the N (if greater than 1)
to adjust cwnd in the congestion avoidance phase.

In addition this patch retires the experimental limited slow start
(LSS) feature. LSS has multiple drawbacks but questionable benefit. The
fractional cwnd increase in LSS requires a loop in slow start even
though it's rarely used. Configuring such an increase step via a global
sysctl on different BDPS seems hard. Finally and most importantly the
slow start overshoot concern is now better covered by the Hybrid slow
start (hystart) enabled by default.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 Documentation/networking/ip-sysctl.txt | 11 --------
 include/net/tcp.h                      |  7 +++--
 net/ipv4/sysctl_net_ipv4.c             |  7 -----
 net/ipv4/tcp_bic.c                     |  5 ++--
 net/ipv4/tcp_cong.c                    | 47 ++++++++++++----------------------
 net/ipv4/tcp_cubic.c                   |  5 ++--
 net/ipv4/tcp_highspeed.c               |  4 +--
 net/ipv4/tcp_htcp.c                    |  4 +--
 net/ipv4/tcp_hybla.c                   |  5 ++--
 net/ipv4/tcp_illinois.c                |  5 ++--
 net/ipv4/tcp_input.c                   |  6 ++---
 net/ipv4/tcp_lp.c                      |  5 ++--
 net/ipv4/tcp_scalable.c                |  5 ++--
 net/ipv4/tcp_vegas.c                   | 11 ++++----
 net/ipv4/tcp_veno.c                    |  9 ++++---
 net/ipv4/tcp_yeah.c                    |  5 ++--
 16 files changed, 59 insertions(+), 82 deletions(-)

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 6c0098359ca6..8b8a05787641 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -267,17 +267,6 @@ tcp_max_orphans - INTEGER
 	more aggressively. Let me to remind again: each orphan eats
 	up to ~64K of unswappable memory.
 
-tcp_max_ssthresh - INTEGER
-	Limited Slow-Start for TCP with large congestion windows (cwnd) defined in
-	RFC3742. Limited slow-start is a mechanism to limit growth of the cwnd
-	on the region where cwnd is larger than tcp_max_ssthresh. TCP increases cwnd
-	by at most tcp_max_ssthresh segments, and by at least tcp_max_ssthresh/2
-	segments per RTT when the cwnd is above tcp_max_ssthresh.
-	If TCP connection increased cwnd to thousands (or tens of thousands) segments,
-	and thousands of packets were being dropped during slow-start, you can set
-	tcp_max_ssthresh to improve performance for new TCP connection.
-	Default: 0 (off)
-
 tcp_max_syn_backlog - INTEGER
 	Maximal number of remembered connection requests, which have not
 	received an acknowledgment from connecting client.
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 2d7b4bdc972f..70e55d200610 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -275,7 +275,6 @@ extern int sysctl_tcp_mtu_probing;
 extern int sysctl_tcp_base_mss;
 extern int sysctl_tcp_workaround_signed_windows;
 extern int sysctl_tcp_slow_start_after_idle;
-extern int sysctl_tcp_max_ssthresh;
 extern int sysctl_tcp_thin_linear_timeouts;
 extern int sysctl_tcp_thin_dupack;
 extern int sysctl_tcp_early_retrans;
@@ -797,7 +796,7 @@ struct tcp_congestion_ops {
 	/* lower bound for congestion window (optional) */
 	u32 (*min_cwnd)(const struct sock *sk);
 	/* do new cwnd calculation (required) */
-	void (*cong_avoid)(struct sock *sk, u32 ack, u32 in_flight);
+	void (*cong_avoid)(struct sock *sk, u32 ack, u32 acked, u32 in_flight);
 	/* call before changing ca_state (optional) */
 	void (*set_state)(struct sock *sk, u8 new_state);
 	/* call when cwnd event occurs (optional) */
@@ -824,12 +823,12 @@ void tcp_get_available_congestion_control(char *buf, size_t len);
 void tcp_get_allowed_congestion_control(char *buf, size_t len);
 int tcp_set_allowed_congestion_control(char *allowed);
 int tcp_set_congestion_control(struct sock *sk, const char *name);
-void tcp_slow_start(struct tcp_sock *tp);
+int tcp_slow_start(struct tcp_sock *tp, u32 acked);
 void tcp_cong_avoid_ai(struct tcp_sock *tp, u32 w);
 
 extern struct tcp_congestion_ops tcp_init_congestion_ops;
 u32 tcp_reno_ssthresh(struct sock *sk);
-void tcp_reno_cong_avoid(struct sock *sk, u32 ack, u32 in_flight);
+void tcp_reno_cong_avoid(struct sock *sk, u32 ack, u32 acked, u32 in_flight);
 u32 tcp_reno_min_cwnd(const struct sock *sk);
 extern struct tcp_congestion_ops tcp_reno;
 
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c
index d5b1390eebbe..3d69ec8dac57 100644
--- a/net/ipv4/sysctl_net_ipv4.c
+++ b/net/ipv4/sysctl_net_ipv4.c
@@ -700,13 +700,6 @@ static struct ctl_table ipv4_table[] = {
 		.mode		= 0644,
 		.proc_handler   = proc_allowed_congestion_control,
 	},
-	{
-		.procname	= "tcp_max_ssthresh",
-		.data		= &sysctl_tcp_max_ssthresh,
-		.maxlen		= sizeof(int),
-		.mode		= 0644,
-		.proc_handler	= proc_dointvec,
-	},
 	{
 		.procname       = "tcp_thin_linear_timeouts",
 		.data           = &sysctl_tcp_thin_linear_timeouts,
diff --git a/net/ipv4/tcp_bic.c b/net/ipv4/tcp_bic.c
index f45e1c242440..821846fb0a7e 100644
--- a/net/ipv4/tcp_bic.c
+++ b/net/ipv4/tcp_bic.c
@@ -140,7 +140,8 @@ static inline void bictcp_update(struct bictcp *ca, u32 cwnd)
 		ca->cnt = 1;
 }
 
-static void bictcp_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
+static void bictcp_cong_avoid(struct sock *sk, u32 ack, u32 acked,
+			      u32 in_flight)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct bictcp *ca = inet_csk_ca(sk);
@@ -149,7 +150,7 @@ static void bictcp_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 		return;
 
 	if (tp->snd_cwnd <= tp->snd_ssthresh)
-		tcp_slow_start(tp);
+		tcp_slow_start(tp, acked);
 	else {
 		bictcp_update(ca, tp->snd_cwnd);
 		tcp_cong_avoid_ai(tp, ca->cnt);
diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c
index 019c2389a341..ad37bf18ae4b 100644
--- a/net/ipv4/tcp_cong.c
+++ b/net/ipv4/tcp_cong.c
@@ -15,8 +15,6 @@
 #include <linux/gfp.h>
 #include <net/tcp.h>
 
-int sysctl_tcp_max_ssthresh = 0;
-
 static DEFINE_SPINLOCK(tcp_cong_list_lock);
 static LIST_HEAD(tcp_cong_list);
 
@@ -299,35 +297,24 @@ bool tcp_is_cwnd_limited(const struct sock *sk, u32 in_flight)
 }
 EXPORT_SYMBOL_GPL(tcp_is_cwnd_limited);
 
-/*
- * Slow start is used when congestion window is less than slow start
- * threshold. This version implements the basic RFC2581 version
- * and optionally supports:
- * 	RFC3742 Limited Slow Start  	  - growth limited to max_ssthresh
- *	RFC3465 Appropriate Byte Counting - growth limited by bytes acknowledged
+/* Slow start is used when congestion window is no greater than the slow start
+ * threshold. We base on RFC2581 and also handle stretch ACKs properly.
+ * We do not implement RFC3465 Appropriate Byte Counting (ABC) per se but
+ * something better;) a packet is only considered (s)acked in its entirety to
+ * defend the ACK attacks described in the RFC. Slow start processes a stretch
+ * ACK of degree N as if N acks of degree 1 are received back to back except
+ * ABC caps N to 2. Slow start exits when cwnd grows over ssthresh and
+ * returns the leftover acks to adjust cwnd in congestion avoidance mode.
  */
-void tcp_slow_start(struct tcp_sock *tp)
+int tcp_slow_start(struct tcp_sock *tp, u32 acked)
 {
-	int cnt; /* increase in packets */
-	unsigned int delta = 0;
-	u32 snd_cwnd = tp->snd_cwnd;
-
-	if (unlikely(!snd_cwnd)) {
-		pr_err_once("snd_cwnd is nul, please report this bug.\n");
-		snd_cwnd = 1U;
-	}
+	u32 cwnd = tp->snd_cwnd + acked;
 
-	if (sysctl_tcp_max_ssthresh > 0 && tp->snd_cwnd > sysctl_tcp_max_ssthresh)
-		cnt = sysctl_tcp_max_ssthresh >> 1;	/* limited slow start */
-	else
-		cnt = snd_cwnd;				/* exponential increase */
-
-	tp->snd_cwnd_cnt += cnt;
-	while (tp->snd_cwnd_cnt >= snd_cwnd) {
-		tp->snd_cwnd_cnt -= snd_cwnd;
-		delta++;
-	}
-	tp->snd_cwnd = min(snd_cwnd + delta, tp->snd_cwnd_clamp);
+	if (cwnd > tp->snd_ssthresh)
+		cwnd = tp->snd_ssthresh + 1;
+	acked -= cwnd - tp->snd_cwnd;
+	tp->snd_cwnd = min(cwnd, tp->snd_cwnd_clamp);
+	return acked;
 }
 EXPORT_SYMBOL_GPL(tcp_slow_start);
 
@@ -351,7 +338,7 @@ EXPORT_SYMBOL_GPL(tcp_cong_avoid_ai);
 /* This is Jacobson's slow start and congestion avoidance.
  * SIGCOMM '88, p. 328.
  */
-void tcp_reno_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
+void tcp_reno_cong_avoid(struct sock *sk, u32 ack, u32 acked, u32 in_flight)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 
@@ -360,7 +347,7 @@ void tcp_reno_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 
 	/* In "safe" area, increase. */
 	if (tp->snd_cwnd <= tp->snd_ssthresh)
-		tcp_slow_start(tp);
+		tcp_slow_start(tp, acked);
 	/* In dangerous area, increase slowly. */
 	else
 		tcp_cong_avoid_ai(tp, tp->snd_cwnd);
diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c
index b6ae92a51f58..828e4c3ffbaf 100644
--- a/net/ipv4/tcp_cubic.c
+++ b/net/ipv4/tcp_cubic.c
@@ -304,7 +304,8 @@ static inline void bictcp_update(struct bictcp *ca, u32 cwnd)
 		ca->cnt = 1;
 }
 
-static void bictcp_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
+static void bictcp_cong_avoid(struct sock *sk, u32 ack, u32 acked,
+			      u32 in_flight)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct bictcp *ca = inet_csk_ca(sk);
@@ -315,7 +316,7 @@ static void bictcp_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 	if (tp->snd_cwnd <= tp->snd_ssthresh) {
 		if (hystart && after(ack, ca->end_seq))
 			bictcp_hystart_reset(sk);
-		tcp_slow_start(tp);
+		tcp_slow_start(tp, acked);
 	} else {
 		bictcp_update(ca, tp->snd_cwnd);
 		tcp_cong_avoid_ai(tp, ca->cnt);
diff --git a/net/ipv4/tcp_highspeed.c b/net/ipv4/tcp_highspeed.c
index 30f27f6b3655..8ed9305dfdf4 100644
--- a/net/ipv4/tcp_highspeed.c
+++ b/net/ipv4/tcp_highspeed.c
@@ -109,7 +109,7 @@ static void hstcp_init(struct sock *sk)
 	tp->snd_cwnd_clamp = min_t(u32, tp->snd_cwnd_clamp, 0xffffffff/128);
 }
 
-static void hstcp_cong_avoid(struct sock *sk, u32 adk, u32 in_flight)
+static void hstcp_cong_avoid(struct sock *sk, u32 ack, u32 acked, u32 in_flight)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct hstcp *ca = inet_csk_ca(sk);
@@ -118,7 +118,7 @@ static void hstcp_cong_avoid(struct sock *sk, u32 adk, u32 in_flight)
 		return;
 
 	if (tp->snd_cwnd <= tp->snd_ssthresh)
-		tcp_slow_start(tp);
+		tcp_slow_start(tp, acked);
 	else {
 		/* Update AIMD parameters.
 		 *
diff --git a/net/ipv4/tcp_htcp.c b/net/ipv4/tcp_htcp.c
index c1a8175361e8..4a194acfd923 100644
--- a/net/ipv4/tcp_htcp.c
+++ b/net/ipv4/tcp_htcp.c
@@ -227,7 +227,7 @@ static u32 htcp_recalc_ssthresh(struct sock *sk)
 	return max((tp->snd_cwnd * ca->beta) >> 7, 2U);
 }
 
-static void htcp_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
+static void htcp_cong_avoid(struct sock *sk, u32 ack, u32 acked, u32 in_flight)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct htcp *ca = inet_csk_ca(sk);
@@ -236,7 +236,7 @@ static void htcp_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 		return;
 
 	if (tp->snd_cwnd <= tp->snd_ssthresh)
-		tcp_slow_start(tp);
+		tcp_slow_start(tp, acked);
 	else {
 		/* In dangerous area, increase slowly.
 		 * In theory this is tp->snd_cwnd += alpha / tp->snd_cwnd
diff --git a/net/ipv4/tcp_hybla.c b/net/ipv4/tcp_hybla.c
index 57bdd17dff4d..478fe82611bf 100644
--- a/net/ipv4/tcp_hybla.c
+++ b/net/ipv4/tcp_hybla.c
@@ -85,7 +85,8 @@ static inline u32 hybla_fraction(u32 odds)
  *     o Give cwnd a new value based on the model proposed
  *     o remember increments <1
  */
-static void hybla_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
+static void hybla_cong_avoid(struct sock *sk, u32 ack, u32 acked,
+			     u32 in_flight)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct hybla *ca = inet_csk_ca(sk);
@@ -102,7 +103,7 @@ static void hybla_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 		return;
 
 	if (!ca->hybla_en) {
-		tcp_reno_cong_avoid(sk, ack, in_flight);
+		tcp_reno_cong_avoid(sk, ack, acked, in_flight);
 		return;
 	}
 
diff --git a/net/ipv4/tcp_illinois.c b/net/ipv4/tcp_illinois.c
index 834857f3c871..8a520996f3d2 100644
--- a/net/ipv4/tcp_illinois.c
+++ b/net/ipv4/tcp_illinois.c
@@ -256,7 +256,8 @@ static void tcp_illinois_state(struct sock *sk, u8 new_state)
 /*
  * Increase window in response to successful acknowledgment.
  */
-static void tcp_illinois_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
+static void tcp_illinois_cong_avoid(struct sock *sk, u32 ack, u32 acked,
+				    u32 in_flight)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct illinois *ca = inet_csk_ca(sk);
@@ -270,7 +271,7 @@ static void tcp_illinois_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 
 	/* In slow start */
 	if (tp->snd_cwnd <= tp->snd_ssthresh)
-		tcp_slow_start(tp);
+		tcp_slow_start(tp, acked);
 
 	else {
 		u32 delta;
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 63095b218b4a..c53b7f35c51d 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -2934,10 +2934,10 @@ static void tcp_synack_rtt_meas(struct sock *sk, const u32 synack_stamp)
 		tcp_ack_update_rtt(sk, FLAG_SYN_ACKED, seq_rtt, -1);
 }
 
-static void tcp_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
+static void tcp_cong_avoid(struct sock *sk, u32 ack, u32 acked, u32 in_flight)
 {
 	const struct inet_connection_sock *icsk = inet_csk(sk);
-	icsk->icsk_ca_ops->cong_avoid(sk, ack, in_flight);
+	icsk->icsk_ca_ops->cong_avoid(sk, ack, acked, in_flight);
 	tcp_sk(sk)->snd_cwnd_stamp = tcp_time_stamp;
 }
 
@@ -3454,7 +3454,7 @@ static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
 
 	/* Advance cwnd if state allows */
 	if (tcp_may_raise_cwnd(sk, flag))
-		tcp_cong_avoid(sk, ack, prior_in_flight);
+		tcp_cong_avoid(sk, ack, acked, prior_in_flight);
 
 	if (tcp_ack_is_dubious(sk, flag)) {
 		is_dupack = !(flag & (FLAG_SND_UNA_ADVANCED | FLAG_NOT_DUP));
diff --git a/net/ipv4/tcp_lp.c b/net/ipv4/tcp_lp.c
index 72f7218b03f5..991d62a2f9bb 100644
--- a/net/ipv4/tcp_lp.c
+++ b/net/ipv4/tcp_lp.c
@@ -115,12 +115,13 @@ static void tcp_lp_init(struct sock *sk)
  * Will only call newReno CA when away from inference.
  * From TCP-LP's paper, this will be handled in additive increasement.
  */
-static void tcp_lp_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
+static void tcp_lp_cong_avoid(struct sock *sk, u32 ack, u32 acked,
+			      u32 in_flight)
 {
 	struct lp *lp = inet_csk_ca(sk);
 
 	if (!(lp->flag & LP_WITHIN_INF))
-		tcp_reno_cong_avoid(sk, ack, in_flight);
+		tcp_reno_cong_avoid(sk, ack, acked, in_flight);
 }
 
 /**
diff --git a/net/ipv4/tcp_scalable.c b/net/ipv4/tcp_scalable.c
index 8ce55b8aaec8..19ea6c2951f3 100644
--- a/net/ipv4/tcp_scalable.c
+++ b/net/ipv4/tcp_scalable.c
@@ -15,7 +15,8 @@
 #define TCP_SCALABLE_AI_CNT	50U
 #define TCP_SCALABLE_MD_SCALE	3
 
-static void tcp_scalable_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
+static void tcp_scalable_cong_avoid(struct sock *sk, u32 ack, u32 acked,
+				    u32 in_flight)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 
@@ -23,7 +24,7 @@ static void tcp_scalable_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 		return;
 
 	if (tp->snd_cwnd <= tp->snd_ssthresh)
-		tcp_slow_start(tp);
+		tcp_slow_start(tp, acked);
 	else
 		tcp_cong_avoid_ai(tp, min(tp->snd_cwnd, TCP_SCALABLE_AI_CNT));
 }
diff --git a/net/ipv4/tcp_vegas.c b/net/ipv4/tcp_vegas.c
index 80fa2bfd7ede..06cae62bf208 100644
--- a/net/ipv4/tcp_vegas.c
+++ b/net/ipv4/tcp_vegas.c
@@ -163,13 +163,14 @@ static inline u32 tcp_vegas_ssthresh(struct tcp_sock *tp)
 	return  min(tp->snd_ssthresh, tp->snd_cwnd-1);
 }
 
-static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
+static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack, u32 acked,
+				 u32 in_flight)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct vegas *vegas = inet_csk_ca(sk);
 
 	if (!vegas->doing_vegas_now) {
-		tcp_reno_cong_avoid(sk, ack, in_flight);
+		tcp_reno_cong_avoid(sk, ack, acked, in_flight);
 		return;
 	}
 
@@ -194,7 +195,7 @@ static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 			/* We don't have enough RTT samples to do the Vegas
 			 * calculation, so we'll behave like Reno.
 			 */
-			tcp_reno_cong_avoid(sk, ack, in_flight);
+			tcp_reno_cong_avoid(sk, ack, acked, in_flight);
 		} else {
 			u32 rtt, diff;
 			u64 target_cwnd;
@@ -243,7 +244,7 @@ static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 
 			} else if (tp->snd_cwnd <= tp->snd_ssthresh) {
 				/* Slow start.  */
-				tcp_slow_start(tp);
+				tcp_slow_start(tp, acked);
 			} else {
 				/* Congestion avoidance. */
 
@@ -283,7 +284,7 @@ static void tcp_vegas_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 	}
 	/* Use normal slow start */
 	else if (tp->snd_cwnd <= tp->snd_ssthresh)
-		tcp_slow_start(tp);
+		tcp_slow_start(tp, acked);
 
 }
 
diff --git a/net/ipv4/tcp_veno.c b/net/ipv4/tcp_veno.c
index ac43cd747bce..326475a94865 100644
--- a/net/ipv4/tcp_veno.c
+++ b/net/ipv4/tcp_veno.c
@@ -114,13 +114,14 @@ static void tcp_veno_cwnd_event(struct sock *sk, enum tcp_ca_event event)
 		tcp_veno_init(sk);
 }
 
-static void tcp_veno_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
+static void tcp_veno_cong_avoid(struct sock *sk, u32 ack, u32 acked,
+				u32 in_flight)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct veno *veno = inet_csk_ca(sk);
 
 	if (!veno->doing_veno_now) {
-		tcp_reno_cong_avoid(sk, ack, in_flight);
+		tcp_reno_cong_avoid(sk, ack, acked, in_flight);
 		return;
 	}
 
@@ -133,7 +134,7 @@ static void tcp_veno_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 		/* We don't have enough rtt samples to do the Veno
 		 * calculation, so we'll behave like Reno.
 		 */
-		tcp_reno_cong_avoid(sk, ack, in_flight);
+		tcp_reno_cong_avoid(sk, ack, acked, in_flight);
 	} else {
 		u64 target_cwnd;
 		u32 rtt;
@@ -152,7 +153,7 @@ static void tcp_veno_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 
 		if (tp->snd_cwnd <= tp->snd_ssthresh) {
 			/* Slow start.  */
-			tcp_slow_start(tp);
+			tcp_slow_start(tp, acked);
 		} else {
 			/* Congestion avoidance. */
 			if (veno->diff < beta) {
diff --git a/net/ipv4/tcp_yeah.c b/net/ipv4/tcp_yeah.c
index 05c3b6f0e8e1..a347a078ee07 100644
--- a/net/ipv4/tcp_yeah.c
+++ b/net/ipv4/tcp_yeah.c
@@ -69,7 +69,8 @@ static void tcp_yeah_pkts_acked(struct sock *sk, u32 pkts_acked, s32 rtt_us)
 	tcp_vegas_pkts_acked(sk, pkts_acked, rtt_us);
 }
 
-static void tcp_yeah_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
+static void tcp_yeah_cong_avoid(struct sock *sk, u32 ack, u32 acked,
+				u32 in_flight)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct yeah *yeah = inet_csk_ca(sk);
@@ -78,7 +79,7 @@ static void tcp_yeah_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 		return;
 
 	if (tp->snd_cwnd <= tp->snd_ssthresh)
-		tcp_slow_start(tp);
+		tcp_slow_start(tp, acked);
 
 	else if (!yeah->doing_reno_now) {
 		/* Scalable */
-- 
cgit 


From 1ba3aab3033b464f352659720824d7124c21dbf9 Mon Sep 17 00:00:00 2001
From: Jesper Dangaard Brouer <netoptimizer@brouer.com>
Date: Thu, 31 Oct 2013 22:10:55 +0100
Subject: net: codel: Avoid undefined behavior from signed overflow

As described in commit 5a581b367 (jiffies: Avoid undefined
behavior from signed overflow), according to the C standard
3.4.3p3, overflow of a signed integer results in undefined
behavior.

To fix this, do as the above commit, and do an unsigned
subtraction, and interpreting the result as a signed
two's-complement number.  This is based on the theory from
RFC 1982 and is nicely described in wikipedia here:
 https://en.wikipedia.org/wiki/Serial_number_arithmetic#General_Solution

A side-note, I have seen practical issues with the previous logic
when dealing with 16-bit, on a 64-bit machine (gcc version
4.4.5). This were 32-bit, which I have not observed issues with.

Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Jesper Dangaard Brouer <netoptimizer@brouer.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/codel.h | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/include/net/codel.h b/include/net/codel.h
index 389cf621161d..3b04ff5f6f8d 100644
--- a/include/net/codel.h
+++ b/include/net/codel.h
@@ -72,10 +72,21 @@ static inline codel_time_t codel_get_time(void)
 	return ns >> CODEL_SHIFT;
 }
 
-#define codel_time_after(a, b)		((s32)(a) - (s32)(b) > 0)
-#define codel_time_after_eq(a, b)	((s32)(a) - (s32)(b) >= 0)
-#define codel_time_before(a, b)		((s32)(a) - (s32)(b) < 0)
-#define codel_time_before_eq(a, b)	((s32)(a) - (s32)(b) <= 0)
+/* Dealing with timer wrapping, according to RFC 1982, as desc in wikipedia:
+ *  https://en.wikipedia.org/wiki/Serial_number_arithmetic#General_Solution
+ * codel_time_after(a,b) returns true if the time a is after time b.
+ */
+#define codel_time_after(a, b)						\
+	(typecheck(codel_time_t, a) &&					\
+	 typecheck(codel_time_t, b) &&					\
+	 ((s32)((a) - (b)) > 0))
+#define codel_time_before(a, b) 	codel_time_after(b, a)
+
+#define codel_time_after_eq(a, b)					\
+	(typecheck(codel_time_t, a) &&					\
+	 typecheck(codel_time_t, b) &&					\
+	 ((s32)((a) - (b)) >= 0))
+#define codel_time_before_eq(a, b)	codel_time_after_eq(b, a)
 
 /* Qdiscs using codel plugin must use codel_skb_cb in their own cb[] */
 struct codel_skb_cb {
-- 
cgit 


From e50fddc8b0c0698cba446221be3654aa0a642372 Mon Sep 17 00:00:00 2001
From: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Date: Fri, 1 Nov 2013 13:09:43 +0800
Subject: vxlan: Use ERR_CAST inlined function instead of ERR_PTR(PTR_ERR(...))

trivial patch converting ERR_PTR(PTR_ERR()) into ERR_CAST().
No functional changes.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/vxlan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 24260ced86d2..78df8f39e57c 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -2285,7 +2285,7 @@ static struct vxlan_sock *vxlan_socket_create(struct net *net, __be16 port,
 		sock = create_v4_sock(net, port);
 	if (IS_ERR(sock)) {
 		kfree(vs);
-		return ERR_PTR(PTR_ERR(sock));
+		return ERR_CAST(sock);
 	}
 
 	vs->sock = sock;
-- 
cgit 


From f8e617e100d7369a0108f96abf4414e9fb82ced7 Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Fri, 1 Nov 2013 14:07:47 +0800
Subject: net: introduce skb_coalesce_rx_frag()

Sometimes we need to coalesce the rx frags to avoid frag list. One example is
virtio-net driver which tries to use small frags for both MTU sized packet and
GSO packet. So this patch introduce skb_coalesce_rx_frag() to do this.

Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Michael Dalton <mwdalton@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/skbuff.h |  3 +++
 net/core/skbuff.c      | 12 ++++++++++++
 2 files changed, 15 insertions(+)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 44727b5d4981..2e153b69d318 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1372,6 +1372,9 @@ static inline void skb_fill_page_desc(struct sk_buff *skb, int i,
 void skb_add_rx_frag(struct sk_buff *skb, int i, struct page *page, int off,
 		     int size, unsigned int truesize);
 
+void skb_coalesce_rx_frag(struct sk_buff *skb, int i, int size,
+			  unsigned int truesize);
+
 #define SKB_PAGE_ASSERT(skb) 	BUG_ON(skb_shinfo(skb)->nr_frags)
 #define SKB_FRAG_ASSERT(skb) 	BUG_ON(skb_has_frag_list(skb))
 #define SKB_LINEAR_ASSERT(skb)  BUG_ON(skb_is_nonlinear(skb))
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index e4115597b38b..3735fad5616e 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -476,6 +476,18 @@ void skb_add_rx_frag(struct sk_buff *skb, int i, struct page *page, int off,
 }
 EXPORT_SYMBOL(skb_add_rx_frag);
 
+void skb_coalesce_rx_frag(struct sk_buff *skb, int i, int size,
+			  unsigned int truesize)
+{
+	skb_frag_t *frag = &skb_shinfo(skb)->frags[i];
+
+	skb_frag_size_add(frag, size);
+	skb->len += size;
+	skb->data_len += size;
+	skb->truesize += truesize;
+}
+EXPORT_SYMBOL(skb_coalesce_rx_frag);
+
 static void skb_drop_list(struct sk_buff **listp)
 {
 	kfree_skb_list(*listp);
-- 
cgit 


From ba275241030cfe87b87d6592345c7e7ebd9b6fba Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Fri, 1 Nov 2013 14:07:48 +0800
Subject: virtio-net: coalesce rx frags when possible during rx

Commit 2613af0ed18a11d5c566a81f9a6510b73180660a (virtio_net: migrate mergeable
rx buffers to page frag allocators) try to increase the payload/truesize for
MTU-sized traffic. But this will introduce the extra overhead for GSO packets
received because of the frag list. This commit tries to reduce this issue by
coalesce the possible rx frags when possible during rx. Test result shows the
about 15% improvement on full size GSO packet receiving (and even better than
before commit 2613af0ed18a11d5c566a81f9a6510b73180660a).

Before this commit:
./netperf -H 192.168.100.4
MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.100.4
() port 0 AF_INET : demo
Recv   Send    Send
Socket Socket  Message  Elapsed
Size   Size    Size     Time     Throughput
bytes  bytes   bytes    secs.    10^6bits/sec

 87380  16384  16384    10.00    20303.87

After this commit:
./netperf -H 192.168.100.4
MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.100.4
() port 0 AF_INET : demo
Recv   Send    Send
Socket Socket  Message  Elapsed
Size   Size    Size     Time     Throughput
bytes  bytes   bytes    secs.    10^6bits/sec

 87380  16384  16384    10.00    23841.26

Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Michael Dalton <mwdalton@google.com>
Cc: Eric Dumazet <edumazet@google.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/virtio_net.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 656a02e28e26..a7e9ad9b213a 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -305,7 +305,7 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb)
 	struct sk_buff *curr_skb = head_skb;
 	char *buf;
 	struct page *page;
-	int num_buf, len;
+	int num_buf, len, offset;
 
 	num_buf = hdr->mhdr.num_buffers;
 	while (--num_buf) {
@@ -342,9 +342,16 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb)
 			head_skb->truesize += MAX_PACKET_LEN;
 		}
 		page = virt_to_head_page(buf);
-		skb_add_rx_frag(curr_skb, num_skb_frags, page,
-				buf - (char *)page_address(page), len,
-				MAX_PACKET_LEN);
+		offset = buf - (char *)page_address(page);
+		if (skb_can_coalesce(curr_skb, num_skb_frags, page, offset)) {
+			put_page(page);
+			skb_coalesce_rx_frag(curr_skb, num_skb_frags - 1,
+					     len, MAX_PACKET_LEN);
+		} else {
+			skb_add_rx_frag(curr_skb, num_skb_frags, page,
+					offset, len,
+					MAX_PACKET_LEN);
+		}
 		--rq->num;
 	}
 	return 0;
-- 
cgit 


From 08ff4cbe10da402e7c493ac72e298975f62a9e78 Mon Sep 17 00:00:00 2001
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: Mon, 4 Nov 2013 08:53:10 -0800
Subject: PowerCap: Fix build error with option -Werror=format-security

Fix compile error with gcc option: -Werror=format-security for
dev_set_name(&control_type->dev, name).

Changed to dev_set_name(&control_type->dev, "%s", name).

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/powercap/powercap_sys.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/powercap/powercap_sys.c b/drivers/powercap/powercap_sys.c
index 21814f90a44b..8d0fe431dbdd 100644
--- a/drivers/powercap/powercap_sys.c
+++ b/drivers/powercap/powercap_sys.c
@@ -625,7 +625,7 @@ struct powercap_control_type *powercap_register_control_type(
 	control_type->ops = ops;
 	INIT_LIST_HEAD(&control_type->node);
 	control_type->dev.class = &powercap_class;
-	dev_set_name(&control_type->dev, name);
+	dev_set_name(&control_type->dev, "%s", name);
 	result = device_register(&control_type->dev);
 	if (result) {
 		if (control_type->allocated)
-- 
cgit 


From 7f71be4c9f9a334e7bd0adc66225db4eb88c3bc4 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Tue, 5 Nov 2013 09:46:39 +0800
Subject: x86, defconfig: Add DEVTMPFS and DEVTMPFS_MOUNT to *86*_defconfig

The defconfig kernel can not run under neither fedora16 x86_64 laptop
nor fedora17 x86_64 pc. After enable DEVTMPFS* in x86_64_defconfig, it
will be OK.

DEVTMPFS* is only related with software, so for i386_defconfig may also
need them (at least, it has no negative effect for defconfig).

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Link: http://lkml.kernel.org/r/52784DFF.8040004@asianux.com
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
---
 arch/x86/configs/i386_defconfig   | 2 ++
 arch/x86/configs/x86_64_defconfig | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/arch/x86/configs/i386_defconfig b/arch/x86/configs/i386_defconfig
index 94447086e551..a7fef2621cc9 100644
--- a/arch/x86/configs/i386_defconfig
+++ b/arch/x86/configs/i386_defconfig
@@ -142,6 +142,8 @@ CONFIG_MAC80211=y
 CONFIG_MAC80211_LEDS=y
 CONFIG_RFKILL=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
 CONFIG_DEBUG_DEVRES=y
 CONFIG_CONNECTOR=y
 CONFIG_BLK_DEV_LOOP=y
diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig
index 671524d0f6c0..c1119d4c1281 100644
--- a/arch/x86/configs/x86_64_defconfig
+++ b/arch/x86/configs/x86_64_defconfig
@@ -141,6 +141,8 @@ CONFIG_MAC80211=y
 CONFIG_MAC80211_LEDS=y
 CONFIG_RFKILL=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
 CONFIG_DEBUG_DEVRES=y
 CONFIG_CONNECTOR=y
 CONFIG_BLK_DEV_LOOP=y
-- 
cgit 


From 0dca01c37a68017fe7112b46bc4b48c927db18c6 Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Tue, 5 Nov 2013 04:41:06 +0100
Subject: ALSA: usb: supply channel maps even when wChannelConfig is
 unspecified

If wChannelconfig is given for some formats but not others, userspace
might not be able to set the channel map.

This is RFC because I'm not sure what the best behaviour is - to guess
the channel map from the given number of channels (it's quite likely
that one channel is MONO and two channels is FL FR), or just to supply
UNKNOWN for all channels.

But the complete lack of channel map for a format leads userspace to
believe that the format is not available at all. Or am I
misunderstanding how this should be used?

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/stream.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/sound/usb/stream.c b/sound/usb/stream.c
index c4339f97226b..b43b6eec3227 100644
--- a/sound/usb/stream.c
+++ b/sound/usb/stream.c
@@ -281,8 +281,6 @@ static struct snd_pcm_chmap_elem *convert_chmap(int channels, unsigned int bits,
 	const unsigned int *maps;
 	int c;
 
-	if (!bits)
-		return NULL;
 	if (channels > ARRAY_SIZE(chmap->map))
 		return NULL;
 
@@ -293,9 +291,19 @@ static struct snd_pcm_chmap_elem *convert_chmap(int channels, unsigned int bits,
 	maps = protocol == UAC_VERSION_2 ? uac2_maps : uac1_maps;
 	chmap->channels = channels;
 	c = 0;
-	for (; bits && *maps; maps++, bits >>= 1) {
-		if (bits & 1)
-			chmap->map[c++] = *maps;
+
+	if (bits) {
+		for (; bits && *maps; maps++, bits >>= 1)
+			if (bits & 1)
+				chmap->map[c++] = *maps;
+	} else {
+		/* If we're missing wChannelConfig, then guess something
+		    to make sure the channel map is not skipped entirely */
+		if (channels == 1)
+			chmap->map[c++] = SNDRV_CHMAP_MONO;
+		else
+			for (; c < channels && *maps; maps++)
+				chmap->map[c++] = *maps;
 	}
 
 	for (; c < channels; c++)
-- 
cgit 


From e3e35f750fff74e701c8913fd7dd714e37a848cd Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Tue, 5 Nov 2013 04:41:07 +0100
Subject: ALSA: usb - For class 2 devices, use channel map from altsettings

The channel config from the streaming descriptor is probably a
better indicator of the channel map than the input terminal.
Use the input terminal's channel map as fallback only.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/stream.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/usb/stream.c b/sound/usb/stream.c
index b43b6eec3227..badd1d6d175d 100644
--- a/sound/usb/stream.c
+++ b/sound/usb/stream.c
@@ -587,6 +587,7 @@ int snd_usb_parse_audio_interface(struct snd_usb_audio *chip, int iface_no)
 
 			num_channels = as->bNrChannels;
 			format = le32_to_cpu(as->bmFormats);
+			chconfig = le32_to_cpu(as->bmChannelConfig);
 
 			/* lookup the terminal associated to this interface
 			 * to extract the clock */
@@ -594,7 +595,8 @@ int snd_usb_parse_audio_interface(struct snd_usb_audio *chip, int iface_no)
 									    as->bTerminalLink);
 			if (input_term) {
 				clock = input_term->bCSourceID;
-				chconfig = le32_to_cpu(input_term->bmChannelConfig);
+				if (!chconfig && (num_channels == input_term->bNrChannels))
+					chconfig = le32_to_cpu(input_term->bmChannelConfig);
 				break;
 			}
 
-- 
cgit 


From 504333df8ba5fc310260285a22ab5d7cf3208795 Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Tue, 5 Nov 2013 04:41:08 +0100
Subject: ALSA: usb - Don't trust the channel config if the channel count
 changed

In case the channel count of the input terminal is not the same as
the channel count of the streaming descriptor, the channel config of
the input terminal can not be trusted. Instead fall back to a default
(guessed) channel map.

This was found on a Logitech USB Headset.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/stream.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/sound/usb/stream.c b/sound/usb/stream.c
index badd1d6d175d..d737d0e6e558 100644
--- a/sound/usb/stream.c
+++ b/sound/usb/stream.c
@@ -662,7 +662,6 @@ int snd_usb_parse_audio_interface(struct snd_usb_audio *chip, int iface_no)
 					* (fp->maxpacksize & 0x7ff);
 		fp->attributes = parse_uac_endpoint_attributes(chip, alts, protocol, iface_no);
 		fp->clock = clock;
-		fp->chmap = convert_chmap(num_channels, chconfig, protocol);
 
 		/* some quirks for attributes here */
 
@@ -698,12 +697,16 @@ int snd_usb_parse_audio_interface(struct snd_usb_audio *chip, int iface_no)
 		/* ok, let's parse further... */
 		if (snd_usb_parse_audio_format(chip, fp, format, fmt, stream) < 0) {
 			kfree(fp->rate_table);
-			kfree(fp->chmap);
 			kfree(fp);
 			fp = NULL;
 			continue;
 		}
 
+		/* Create chmap */
+		if (fp->channels != num_channels)
+			chconfig = 0;
+		fp->chmap = convert_chmap(fp->channels, chconfig, protocol);
+
 		snd_printdd(KERN_INFO "%d:%u:%d: add audio endpoint %#x\n", dev->devnum, iface_no, altno, fp->endpoint);
 		err = snd_usb_add_audio_stream(chip, stream, fp);
 		if (err < 0) {
-- 
cgit 


From a4e7a121685a137eeeb01f05d5ed570c1b45017a Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 4 Nov 2013 15:44:09 +0100
Subject: ALSA: hda - Fix possible zero-division

Check the TLV db scale result before actually dividing in vmaster
slave init code.  Also mask TLV_DB_SCALE_MUTE bit so that the right
value is obtained even if this bit is set by the codec driver.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_codec.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index de1a7670ba0d..33c01d551aa4 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -2676,8 +2676,13 @@ static int get_kctl_0dB_offset(struct snd_kcontrol *kctl)
 		set_fs(fs);
 	} else if (kctl->vd[0].access & SNDRV_CTL_ELEM_ACCESS_TLV_READ)
 		tlv = kctl->tlv.p;
-	if (tlv && tlv[0] == SNDRV_CTL_TLVT_DB_SCALE)
-		val = -tlv[2] / tlv[3];
+	if (tlv && tlv[0] == SNDRV_CTL_TLVT_DB_SCALE) {
+		int step = tlv[3];
+		step &= ~TLV_DB_SCALE_MUTE;
+		if (!step)
+			return -1;
+		val = -tlv[2] / step;
+	}
 	return val;
 }
 
-- 
cgit 


From 485e3e0cdf353e2e37570eafaad7208138bb6620 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 4 Nov 2013 15:51:00 +0100
Subject: ALSA: hda - Add sanity check of vmaster slave dB steps

Check whether all vmaster slaves have the same dB steps.  Otherwise
the behavior would become inconsistent.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_codec.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 33c01d551aa4..dd5403d40830 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -2661,7 +2661,7 @@ static int check_slave_present(void *data, struct snd_kcontrol *sctl)
 }
 
 /* guess the value corresponding to 0dB */
-static int get_kctl_0dB_offset(struct snd_kcontrol *kctl)
+static int get_kctl_0dB_offset(struct snd_kcontrol *kctl, int *step_to_check)
 {
 	int _tlv[4];
 	const int *tlv = NULL;
@@ -2681,6 +2681,12 @@ static int get_kctl_0dB_offset(struct snd_kcontrol *kctl)
 		step &= ~TLV_DB_SCALE_MUTE;
 		if (!step)
 			return -1;
+		if (*step_to_check && *step_to_check != step) {
+			snd_printk(KERN_ERR "hda_codec: Mismatching dB step for vmaster slave (%d!=%d)\n",
+				   *step_to_check, step);
+			return -1;
+		}
+		*step_to_check = step;
 		val = -tlv[2] / step;
 	}
 	return val;
@@ -2703,7 +2709,7 @@ static int put_kctl_with_value(struct snd_kcontrol *kctl, int val)
 /* initialize the slave volume with 0dB */
 static int init_slave_0dB(void *data, struct snd_kcontrol *slave)
 {
-	int offset = get_kctl_0dB_offset(slave);
+	int offset = get_kctl_0dB_offset(slave, data);
 	if (offset > 0)
 		put_kctl_with_value(slave, offset);
 	return 0;
@@ -2764,9 +2770,11 @@ int __snd_hda_add_vmaster(struct hda_codec *codec, char *name,
 
 	/* init with master mute & zero volume */
 	put_kctl_with_value(kctl, 0);
-	if (init_slave_vol)
+	if (init_slave_vol) {
+		int step = 0;
 		map_slaves(codec, slaves, suffix,
-			   tlv ? init_slave_0dB : init_slave_unmute, kctl);
+			   tlv ? init_slave_0dB : init_slave_unmute, &step);
+	}
 
 	if (ctl_ret)
 		*ctl_ret = kctl;
-- 
cgit 


From a1114a8c681b0724d6ad905f53ff06aa756f5fb8 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 4 Nov 2013 16:32:01 +0100
Subject: ALSA: hda - Introduce the bitmask for excluding output volume

Add a bitmask to hda_gen_spec indicating NIDs to exclude from the
possible volume controls.  That is, when the bit is set, the NID
corresponding to the bit won't be picked as an output volume control
any longer.

Basically this is just a band-aid for working around the issue found
with CS4208 codec, where only the headphone pin has a volume AMP with
different dB steps.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=60811
Cc: <stable@vger.kernel.org> [v3.12+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_generic.c  | 8 ++++++--
 sound/pci/hda/hda_generic.h  | 3 +++
 sound/pci/hda/patch_cirrus.c | 2 ++
 3 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index b7c89dff7066..276f6e759bac 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -549,11 +549,15 @@ static hda_nid_t look_for_out_mute_nid(struct hda_codec *codec,
 static hda_nid_t look_for_out_vol_nid(struct hda_codec *codec,
 				      struct nid_path *path)
 {
+	struct hda_gen_spec *spec = codec->spec;
 	int i;
 
 	for (i = path->depth - 1; i >= 0; i--) {
-		if (nid_has_volume(codec, path->path[i], HDA_OUTPUT))
-			return path->path[i];
+		hda_nid_t nid = path->path[i];
+		if ((spec->out_vol_mask >> nid) & 1)
+			continue;
+		if (nid_has_volume(codec, nid, HDA_OUTPUT))
+			return nid;
 	}
 	return 0;
 }
diff --git a/sound/pci/hda/hda_generic.h b/sound/pci/hda/hda_generic.h
index 48d44026705b..7e45cb44d151 100644
--- a/sound/pci/hda/hda_generic.h
+++ b/sound/pci/hda/hda_generic.h
@@ -242,6 +242,9 @@ struct hda_gen_spec {
 	/* additional mute flags (only effective with auto_mute_via_amp=1) */
 	u64 mute_bits;
 
+	/* bitmask for skipping volume controls */
+	u64 out_vol_mask;
+
 	/* badness tables for output path evaluations */
 	const struct badness_table *main_out_badness;
 	const struct badness_table *extra_out_badness;
diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c
index 18d972501585..38d073ed4bcc 100644
--- a/sound/pci/hda/patch_cirrus.c
+++ b/sound/pci/hda/patch_cirrus.c
@@ -660,6 +660,8 @@ static int patch_cs4208(struct hda_codec *codec)
 		return -ENOMEM;
 
 	spec->gen.automute_hook = cs_automute;
+	/* exclude NID 0x10 (HP) from output volumes due to different steps */
+	spec->gen.out_vol_mask = 1ULL << 0x10;
 
 	snd_hda_pick_fixup(codec, cs4208_models, cs4208_fixup_tbl,
 			   cs4208_fixups);
-- 
cgit 


From aa9ac1a6323d21065e121902fef4f1b6c07c37c7 Mon Sep 17 00:00:00 2001
From: Gleb Natapov <gleb@redhat.com>
Date: Mon, 4 Nov 2013 15:52:41 +0200
Subject: KVM: emulator: check rex prefix inside decode_register()

All decode_register() callers check if instruction has rex prefix
to properly decode one byte operand. It make sense to move the check
inside.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/kvm/emulate.c | 18 +++++++-----------
 1 file changed, 7 insertions(+), 11 deletions(-)

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 282d28cb9931..0bd372f3c989 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -785,9 +785,10 @@ static int do_insn_fetch(struct x86_emulate_ctxt *ctxt,
  * @highbyte_regs specifies whether to decode AH,CH,DH,BH.
  */
 static void *decode_register(struct x86_emulate_ctxt *ctxt, u8 modrm_reg,
-			     int highbyte_regs)
+			     int byteop)
 {
 	void *p;
+	int highbyte_regs = (ctxt->rex_prefix == 0) && byteop;
 
 	if (highbyte_regs && modrm_reg >= 4 && modrm_reg < 8)
 		p = (unsigned char *)reg_rmw(ctxt, modrm_reg & 3) + 1;
@@ -1024,7 +1025,6 @@ static void decode_register_operand(struct x86_emulate_ctxt *ctxt,
 				    struct operand *op)
 {
 	unsigned reg = ctxt->modrm_reg;
-	int highbyte_regs = ctxt->rex_prefix == 0;
 
 	if (!(ctxt->d & ModRM))
 		reg = (ctxt->b & 7) | ((ctxt->rex_prefix & 1) << 3);
@@ -1046,10 +1046,10 @@ static void decode_register_operand(struct x86_emulate_ctxt *ctxt,
 
 	op->type = OP_REG;
 	if (ctxt->d & ByteOp) {
-		op->addr.reg = decode_register(ctxt, reg, highbyte_regs);
+		op->addr.reg = decode_register(ctxt, reg, true);
 		op->bytes = 1;
 	} else {
-		op->addr.reg = decode_register(ctxt, reg, 0);
+		op->addr.reg = decode_register(ctxt, reg, false);
 		op->bytes = ctxt->op_bytes;
 	}
 	fetch_register_operand(op);
@@ -1082,12 +1082,10 @@ static int decode_modrm(struct x86_emulate_ctxt *ctxt,
 	ctxt->modrm_seg = VCPU_SREG_DS;
 
 	if (ctxt->modrm_mod == 3) {
-		int highbyte_regs = ctxt->rex_prefix == 0;
-
 		op->type = OP_REG;
 		op->bytes = (ctxt->d & ByteOp) ? 1 : ctxt->op_bytes;
 		op->addr.reg = decode_register(ctxt, ctxt->modrm_rm,
-					       highbyte_regs && (ctxt->d & ByteOp));
+				ctxt->d & ByteOp);
 		if (ctxt->d & Sse) {
 			op->type = OP_XMM;
 			op->bytes = 16;
@@ -4117,10 +4115,8 @@ static int decode_operand(struct x86_emulate_ctxt *ctxt, struct operand *op,
 	case OpMem8:
 		ctxt->memop.bytes = 1;
 		if (ctxt->memop.type == OP_REG) {
-			int highbyte_regs = ctxt->rex_prefix == 0;
-
-			ctxt->memop.addr.reg = decode_register(ctxt, ctxt->modrm_rm,
-					       highbyte_regs);
+			ctxt->memop.addr.reg = decode_register(ctxt,
+					ctxt->modrm_rm, true);
 			fetch_register_operand(&ctxt->memop);
 		}
 		goto mem_common;
-- 
cgit 


From 6d4d85ec5698a65165eb9af0ce0e508a7c757bac Mon Sep 17 00:00:00 2001
From: Gleb Natapov <gleb@redhat.com>
Date: Mon, 4 Nov 2013 15:52:42 +0200
Subject: KVM: emulator: cleanup decode_register_operand() a bit

Make code shorter.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/kvm/emulate.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index 0bd372f3c989..07ffca0a89e9 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -1045,13 +1045,9 @@ static void decode_register_operand(struct x86_emulate_ctxt *ctxt,
 	}
 
 	op->type = OP_REG;
-	if (ctxt->d & ByteOp) {
-		op->addr.reg = decode_register(ctxt, reg, true);
-		op->bytes = 1;
-	} else {
-		op->addr.reg = decode_register(ctxt, reg, false);
-		op->bytes = ctxt->op_bytes;
-	}
+	op->bytes = (ctxt->d & ByteOp) ? 1 : ctxt->op_bytes;
+	op->addr.reg = decode_register(ctxt, reg, ctxt->d & ByteOp);
+
 	fetch_register_operand(op);
 	op->orig_val = op->val;
 }
-- 
cgit 


From a9d4e4393b13bca899ab522aa812138437a6c188 Mon Sep 17 00:00:00 2001
From: Gleb Natapov <gleb@redhat.com>
Date: Mon, 4 Nov 2013 15:52:43 +0200
Subject: KVM: x86: trace cpuid emulation when called from emulator

Currently cpuid emulation is traced only when executed by intercept.
Move trace point so that emulator invocation is traced too.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/kvm/cpuid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 86d5756dda07..8f66fba804e4 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -756,6 +756,7 @@ void kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx)
 		*edx = best->edx;
 	} else
 		*eax = *ebx = *ecx = *edx = 0;
+	trace_kvm_cpuid(function, *eax, *ebx, *ecx, *edx);
 }
 EXPORT_SYMBOL_GPL(kvm_cpuid);
 
@@ -771,6 +772,5 @@ void kvm_emulate_cpuid(struct kvm_vcpu *vcpu)
 	kvm_register_write(vcpu, VCPU_REGS_RCX, ecx);
 	kvm_register_write(vcpu, VCPU_REGS_RDX, edx);
 	kvm_x86_ops->skip_emulated_instruction(vcpu);
-	trace_kvm_cpuid(function, eax, ebx, ecx, edx);
 }
 EXPORT_SYMBOL_GPL(kvm_emulate_cpuid);
-- 
cgit 


From 27ef63c7e97d1e5dddd85051c03f8d44cc887f34 Mon Sep 17 00:00:00 2001
From: Greg Edwards <gedwards@ddn.com>
Date: Mon, 4 Nov 2013 09:08:12 -0700
Subject: KVM: IOMMU: hva align mapping page size

When determining the page size we could use to map with the IOMMU, the
page size should also be aligned with the hva, not just the gfn.  The
gfn may not reflect the real alignment within the hugetlbfs file.

Most of the time, this works fine.  However, if the hugetlbfs file is
backed by non-contiguous huge pages, a multi-huge page memslot starts at
an unaligned offset within the hugetlbfs file, and the gfn is aligned
with respect to the huge page size, kvm_host_page_size() will return the
huge page size and we will use that to map with the IOMMU.

When we later unpin that same memslot, the IOMMU returns the unmap size
as the huge page size, and we happily unpin that many pfns in
monotonically increasing order, not realizing we are spanning
non-contiguous huge pages and partially unpin the wrong huge page.

Ensure the IOMMU mapping page size is aligned with the hva corresponding
to the gfn, which does reflect the alignment within the hugetlbfs file.

Reviewed-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Greg Edwards <gedwards@ddn.com>
Cc: stable@vger.kernel.org
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 virt/kvm/iommu.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c
index c7d9ce122529..0df7d4b34dfe 100644
--- a/virt/kvm/iommu.c
+++ b/virt/kvm/iommu.c
@@ -103,6 +103,10 @@ int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot)
 		while ((gfn << PAGE_SHIFT) & (page_size - 1))
 			page_size >>= 1;
 
+		/* Make sure hva is aligned to the page size we want to map */
+		while (__gfn_to_hva_memslot(slot, gfn) & (page_size - 1))
+			page_size >>= 1;
+
 		/*
 		 * Pin all pages we are about to map in memory. This is
 		 * important because we unmap and unpin in 4kb steps later.
-- 
cgit 


From f6011081f5e290756bd90fe96f1e86d3eac76f77 Mon Sep 17 00:00:00 2001
From: Maxim Patlasov <MPatlasov@parallels.com>
Date: Wed, 2 Oct 2013 15:01:07 +0400
Subject: fuse: writepages: roll back changes if request not found

fuse_writepage_in_flight() returns false if it fails to find request with
given index in fi->writepages.  Then the caller proceeds with populating
data->orig_pages[] and incrementing req->num_pages.  Hence,
fuse_writepage_in_flight() must revert changes it made in request before
returning false.

Signed-off-by: Maxim Patlasov <MPatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
 fs/fuse/file.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 135360e2b9e5..077b03844998 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1649,7 +1649,6 @@ static bool fuse_writepage_in_flight(struct fuse_req *new_req,
 
 	spin_lock(&fc->lock);
 	list_del(&new_req->writepages_entry);
-	new_req->num_pages = 1;
 	list_for_each_entry(old_req, &fi->writepages, writepages_entry) {
 		BUG_ON(old_req->inode != new_req->inode);
 		curr_index = old_req->misc.write.in.offset >> PAGE_CACHE_SHIFT;
@@ -1659,9 +1658,12 @@ static bool fuse_writepage_in_flight(struct fuse_req *new_req,
 			break;
 		}
 	}
-	if (!found)
+	if (!found) {
+		list_add(&new_req->writepages_entry, &fi->writepages);
 		goto out_unlock;
+	}
 
+	new_req->num_pages = 1;
 	for (tmp = old_req; tmp != NULL; tmp = tmp->misc.write.next) {
 		BUG_ON(tmp->inode != new_req->inode);
 		curr_index = tmp->misc.write.in.offset >> PAGE_CACHE_SHIFT;
-- 
cgit 


From 6eaf4782eb09e28dbd13d23b9ce0fb7646daf37e Mon Sep 17 00:00:00 2001
From: Maxim Patlasov <MPatlasov@parallels.com>
Date: Wed, 2 Oct 2013 21:38:32 +0400
Subject: fuse: writepages: crop secondary requests

If writeback happens while fuse is in FUSE_NOWRITE condition, the request
will be queued but not processed immediately (see fuse_flush_writepages()).
Until FUSE_NOWRITE becomes relaxed, more writebacks can happen.  They will
be queued as "secondary" requests to that first ("primary") request.

Existing implementation crops only primary request.  This is not correct
because a subsequent extending write(2) may increase i_size and then
secondary requests won't be cropped properly.  The result would be stale
data written to the server to a file offset where zeros must be.

Similar problem may happen if secondary requests are attached to an
in-flight request that was already cropped.

The patch solves the issue by cropping all secondary requests in
fuse_writepage_end().  Thanks to Miklos for idea.

Signed-off-by: Maxim Patlasov <MPatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
 fs/fuse/file.c | 36 +++++++++++++++++++++++++++++++-----
 1 file changed, 31 insertions(+), 5 deletions(-)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 077b03844998..1cb303eba4d0 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1436,12 +1436,12 @@ static void fuse_writepage_finish(struct fuse_conn *fc, struct fuse_req *req)
 }
 
 /* Called under fc->lock, may release and reacquire it */
-static void fuse_send_writepage(struct fuse_conn *fc, struct fuse_req *req)
+static void fuse_send_writepage(struct fuse_conn *fc, struct fuse_req *req,
+				loff_t size)
 __releases(fc->lock)
 __acquires(fc->lock)
 {
 	struct fuse_inode *fi = get_fuse_inode(req->inode);
-	loff_t size = i_size_read(req->inode);
 	struct fuse_write_in *inarg = &req->misc.write.in;
 	__u64 data_size = req->num_pages * PAGE_CACHE_SIZE;
 
@@ -1482,12 +1482,13 @@ __acquires(fc->lock)
 {
 	struct fuse_conn *fc = get_fuse_conn(inode);
 	struct fuse_inode *fi = get_fuse_inode(inode);
+	size_t crop = i_size_read(inode);
 	struct fuse_req *req;
 
 	while (fi->writectr >= 0 && !list_empty(&fi->queued_writes)) {
 		req = list_entry(fi->queued_writes.next, struct fuse_req, list);
 		list_del_init(&req->list);
-		fuse_send_writepage(fc, req);
+		fuse_send_writepage(fc, req, crop);
 	}
 }
 
@@ -1499,12 +1500,37 @@ static void fuse_writepage_end(struct fuse_conn *fc, struct fuse_req *req)
 	mapping_set_error(inode->i_mapping, req->out.h.error);
 	spin_lock(&fc->lock);
 	while (req->misc.write.next) {
+		struct fuse_conn *fc = get_fuse_conn(inode);
+		struct fuse_write_in *inarg = &req->misc.write.in;
 		struct fuse_req *next = req->misc.write.next;
 		req->misc.write.next = next->misc.write.next;
 		next->misc.write.next = NULL;
 		list_add(&next->writepages_entry, &fi->writepages);
-		list_add_tail(&next->list, &fi->queued_writes);
-		fuse_flush_writepages(inode);
+
+		/*
+		 * Skip fuse_flush_writepages() to make it easy to crop requests
+		 * based on primary request size.
+		 *
+		 * 1st case (trivial): there are no concurrent activities using
+		 * fuse_set/release_nowrite.  Then we're on safe side because
+		 * fuse_flush_writepages() would call fuse_send_writepage()
+		 * anyway.
+		 *
+		 * 2nd case: someone called fuse_set_nowrite and it is waiting
+		 * now for completion of all in-flight requests.  This happens
+		 * rarely and no more than once per page, so this should be
+		 * okay.
+		 *
+		 * 3rd case: someone (e.g. fuse_do_setattr()) is in the middle
+		 * of fuse_set_nowrite..fuse_release_nowrite section.  The fact
+		 * that fuse_set_nowrite returned implies that all in-flight
+		 * requests were completed along with all of their secondary
+		 * requests.  Further primary requests are blocked by negative
+		 * writectr.  Hence there cannot be any in-flight requests and
+		 * no invocations of fuse_writepage_end() while we're in
+		 * fuse_set_nowrite..fuse_release_nowrite section.
+		 */
+		fuse_send_writepage(fc, next, inarg->offset + inarg->size);
 	}
 	fi->writectr--;
 	fuse_writepage_finish(fc, req);
-- 
cgit 


From 41b6e41fc609753a9386d24295f7ed03b28c4601 Mon Sep 17 00:00:00 2001
From: Maxim Patlasov <MPatlasov@parallels.com>
Date: Wed, 2 Oct 2013 21:38:43 +0400
Subject: fuse: writepages: update bdi writeout when deleting secondary request

BDI_WRITTEN counter is used to estimate bdi bandwidth.  It must be
incremented every time as bdi ends page writeback.  No matter whether it
was fulfilled by actual write or by discarding the request (e.g. due to
shrunk i_size).

Note that even before writepages patches, the case "Got truncated off
completely" was handled in fuse_send_writepage() by calling
fuse_writepage_finish() which updated BDI_WRITTEN unconditionally.

Signed-off-by: Maxim Patlasov <MPatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
 fs/fuse/file.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index 1cb303eba4d0..e6fdd59a7906 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1701,11 +1701,14 @@ static bool fuse_writepage_in_flight(struct fuse_req *new_req,
 
 	if (old_req->num_pages == 1 && (old_req->state == FUSE_REQ_INIT ||
 					old_req->state == FUSE_REQ_PENDING)) {
+		struct backing_dev_info *bdi = page->mapping->backing_dev_info;
+
 		copy_highpage(old_req->pages[0], page);
 		spin_unlock(&fc->lock);
 
-		dec_bdi_stat(page->mapping->backing_dev_info, BDI_WRITEBACK);
+		dec_bdi_stat(bdi, BDI_WRITEBACK);
 		dec_zone_page_state(page, NR_WRITEBACK_TEMP);
+		bdi_writeout_inc(bdi);
 		fuse_writepage_free(fc, new_req);
 		fuse_request_free(new_req);
 		goto out;
-- 
cgit 


From ce128de6260f86a990ed44a697f26d0859684f28 Mon Sep 17 00:00:00 2001
From: Maxim Patlasov <MPatlasov@parallels.com>
Date: Wed, 2 Oct 2013 21:38:54 +0400
Subject: fuse: writepages: protect secondary requests from fuse file release

All async fuse requests must be supplied with extra reference to a fuse
file.  This is necessary to ensure that the fuse file is not released until
all in-flight requests are completed.  Fuse secondary writeback requests
must obey this rule as well.

Signed-off-by: Maxim Patlasov <MPatlasov@parallels.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
---
 fs/fuse/file.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/fuse/file.c b/fs/fuse/file.c
index e6fdd59a7906..7e70506297bc 100644
--- a/fs/fuse/file.c
+++ b/fs/fuse/file.c
@@ -1505,6 +1505,7 @@ static void fuse_writepage_end(struct fuse_conn *fc, struct fuse_req *req)
 		struct fuse_req *next = req->misc.write.next;
 		req->misc.write.next = next->misc.write.next;
 		next->misc.write.next = NULL;
+		next->ff = fuse_file_get(req->ff);
 		list_add(&next->writepages_entry, &fi->writepages);
 
 		/*
-- 
cgit 


From bbaa0d6665bc14133d7eb573d2b5ff898a06f365 Mon Sep 17 00:00:00 2001
From: Clemens Ladisch <clemens@ladisch.de>
Date: Tue, 5 Nov 2013 09:27:10 +0100
Subject: ALSA: hda: add device IDs for AMD Evergreen/Northern Islands HDMI

The device IDs of the AMD Cypress/Juniper/Redwood/Cedar/Cayman/Antilles/
Barts/Turks/Caicos HDMI HDA controllers weren't added explicitly
because the generic entry works, but it made the device appearing as
"Generic", and people are confused as if it's no proper HDMI
controller.  Add them so that the name shows up properly as "ATI HDMI"
instead of "Generic".

According to Takashi's tests and the lack of complaints, these devices
work fine without disabling snooping.

Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_intel.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 66f7e1e3ec4b..d6dcec768594 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -4079,6 +4079,22 @@ static DEFINE_PCI_DEVICE_TABLE(azx_ids) = {
 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
 	{ PCI_DEVICE(0x1002, 0xaa48),
 	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa50),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa58),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa60),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa68),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa80),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa88),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa90),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
+	{ PCI_DEVICE(0x1002, 0xaa98),
+	  .driver_data = AZX_DRIVER_ATIHDMI | AZX_DCAPS_PRESET_ATI_HDMI },
 	{ PCI_DEVICE(0x1002, 0x9902),
 	  .driver_data = AZX_DRIVER_ATIHDMI_NS | AZX_DCAPS_PRESET_ATI_HDMI },
 	{ PCI_DEVICE(0x1002, 0xaaa0),
-- 
cgit 


From 717321fcb58ed95169bf344ae47ac6098ba5dfbe Mon Sep 17 00:00:00 2001
From: Marc Zyngier <Marc.Zyngier@arm.com>
Date: Mon, 4 Nov 2013 20:14:58 +0000
Subject: arm64: fix access to preempt_count from assembly code

preempt_count is defined as an int. Oddly enough, we access it
as a 64bit value. Things become interesting when running a BE
kernel, and looking at the current CPU number, which is stored
as an int next to preempt_count. Like in a per-cpu interrupt
handler, for example...

Using a 32bit access fixes the issue for good.

Cc: Matthew Leach <matthew.leach@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kernel/entry.S | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index 3881fd115ebb..e1166145ca29 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -311,14 +311,14 @@ el1_irq:
 #endif
 #ifdef CONFIG_PREEMPT
 	get_thread_info tsk
-	ldr	x24, [tsk, #TI_PREEMPT]		// get preempt count
-	add	x0, x24, #1			// increment it
-	str	x0, [tsk, #TI_PREEMPT]
+	ldr	w24, [tsk, #TI_PREEMPT]		// get preempt count
+	add	w0, w24, #1			// increment it
+	str	w0, [tsk, #TI_PREEMPT]
 #endif
 	irq_handler
 #ifdef CONFIG_PREEMPT
-	str	x24, [tsk, #TI_PREEMPT]		// restore preempt count
-	cbnz	x24, 1f				// preempt count != 0
+	str	w24, [tsk, #TI_PREEMPT]		// restore preempt count
+	cbnz	w24, 1f				// preempt count != 0
 	ldr	x0, [tsk, #TI_FLAGS]		// get flags
 	tbz	x0, #TIF_NEED_RESCHED, 1f	// needs rescheduling?
 	bl	el1_preempt
@@ -509,15 +509,15 @@ el0_irq_naked:
 #endif
 	get_thread_info tsk
 #ifdef CONFIG_PREEMPT
-	ldr	x24, [tsk, #TI_PREEMPT]		// get preempt count
-	add	x23, x24, #1			// increment it
-	str	x23, [tsk, #TI_PREEMPT]
+	ldr	w24, [tsk, #TI_PREEMPT]		// get preempt count
+	add	w23, w24, #1			// increment it
+	str	w23, [tsk, #TI_PREEMPT]
 #endif
 	irq_handler
 #ifdef CONFIG_PREEMPT
-	ldr	x0, [tsk, #TI_PREEMPT]
-	str	x24, [tsk, #TI_PREEMPT]
-	cmp	x0, x23
+	ldr	w0, [tsk, #TI_PREEMPT]
+	str	w24, [tsk, #TI_PREEMPT]
+	cmp	w0, w23
 	b.eq	1f
 	mov	x1, #0
 	str	x1, [x1]			// BUG
-- 
cgit 


From 94daf85e3c4db3b804205277eec7c4eae6efe9db Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 5 Nov 2013 10:30:14 +0100
Subject: pinctrl: at91: copy define to driver

The #define for the maximum number of GPIO blocks was retrieved
into pinctrl-at91.c by implicit inclusion of <mach/gpio.h>
from <linux/gpio.h> creating a dependency on machine-local
<mach/gpio.h>. Break the depenency by copying this single
define into the driver.

Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-at91.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pinctrl/pinctrl-at91.c b/drivers/pinctrl/pinctrl-at91.c
index c4598dcf333c..a7549c4c83b4 100644
--- a/drivers/pinctrl/pinctrl-at91.c
+++ b/drivers/pinctrl/pinctrl-at91.c
@@ -33,6 +33,7 @@
 
 #include "core.h"
 
+#define MAX_GPIO_BANKS		5
 #define MAX_NB_GPIO_PER_BANK	32
 
 struct at91_pinctrl_mux_ops;
-- 
cgit 


From dab7ea360967f26337be1f26f56b12771da8c731 Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Tue, 5 Nov 2013 10:03:53 +0000
Subject: arm64: defconfig: Enable CONFIG_PREEMPT by default

This way we can spot early bugs when just testing with the default
config.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/configs/defconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index 31c81e9b792e..84139be62ae6 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -26,7 +26,7 @@ CONFIG_MODULE_UNLOAD=y
 CONFIG_ARCH_VEXPRESS=y
 CONFIG_ARCH_XGENE=y
 CONFIG_SMP=y
-CONFIG_PREEMPT_VOLUNTARY=y
+CONFIG_PREEMPT=y
 CONFIG_CMDLINE="console=ttyAMA0"
 # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
 CONFIG_COMPAT=y
-- 
cgit 


From 122e2fa0d310d262cb85cf0b003032e5d2bc2ae7 Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Tue, 5 Nov 2013 10:16:52 +0000
Subject: arm64: module: ensure instruction is little-endian before
 manipulation

Relocations that require an instruction immediate to be re-encoded must
ensure that the instruction pattern is represented in a little-endian
format for the manipulation code to work correctly.

This patch converts the loaded instruction into native-endianess prior
to encoding and then converts back to little-endian byteorder before
updating memory.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Tested-by: Matthew Leach <matthew.leach@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kernel/module.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c
index ca0e3d55da99..2c28a6cf93e6 100644
--- a/arch/arm64/kernel/module.c
+++ b/arch/arm64/kernel/module.c
@@ -111,6 +111,9 @@ static u32 encode_insn_immediate(enum aarch64_imm_type type, u32 insn, u64 imm)
 	u32 immlo, immhi, lomask, himask, mask;
 	int shift;
 
+	/* The instruction stream is always little endian. */
+	insn = le32_to_cpu(insn);
+
 	switch (type) {
 	case INSN_IMM_MOVNZ:
 		/*
@@ -179,7 +182,7 @@ static u32 encode_insn_immediate(enum aarch64_imm_type type, u32 insn, u64 imm)
 	insn &= ~(mask << shift);
 	insn |= (imm & mask) << shift;
 
-	return insn;
+	return cpu_to_le32(insn);
 }
 
 static int reloc_insn_movw(enum aarch64_reloc_op op, void *place, u64 val,
-- 
cgit 


From 7ba3ec5749ddb61f79f7be17b5fd7720eebc52de Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Tue, 5 Nov 2013 01:15:38 +0100
Subject: ext2: Fix fs corruption in ext2_get_xip_mem()

Commit 8e3dffc651cb "Ext2: mark inode dirty after the function
dquot_free_block_nodirty is called" unveiled a bug in __ext2_get_block()
called from ext2_get_xip_mem(). That function called ext2_get_block()
mistakenly asking it to map 0 blocks while 1 was intended. Before the
above mentioned commit things worked out fine by luck but after that commit
we started returning that we allocated 0 blocks while we in fact
allocated 1 block and thus allocation was looping until all blocks in
the filesystem were exhausted.

Fix the problem by properly asking for one block and also add assertion
in ext2_get_blocks() to catch similar problems.

Reported-and-tested-by: Andiry Xu <andiry.xu@gmail.com>
Signed-off-by: Jan Kara <jack@suse.cz>
---
 fs/ext2/inode.c | 2 ++
 fs/ext2/xip.c   | 1 +
 2 files changed, 3 insertions(+)

diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index c260de6d7b6d..8a337640a46a 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -632,6 +632,8 @@ static int ext2_get_blocks(struct inode *inode,
 	int count = 0;
 	ext2_fsblk_t first_block = 0;
 
+	BUG_ON(maxblocks == 0);
+
 	depth = ext2_block_to_path(inode,iblock,offsets,&blocks_to_boundary);
 
 	if (depth == 0)
diff --git a/fs/ext2/xip.c b/fs/ext2/xip.c
index 1c3312858fcf..e98171a11cfe 100644
--- a/fs/ext2/xip.c
+++ b/fs/ext2/xip.c
@@ -35,6 +35,7 @@ __ext2_get_block(struct inode *inode, pgoff_t pgoff, int create,
 	int rc;
 
 	memset(&tmp, 0, sizeof(struct buffer_head));
+	tmp.b_size = 1 << inode->i_blkbits;
 	rc = ext2_get_block(inode, pgoff, &tmp, create);
 	*result = tmp.b_blocknr;
 
-- 
cgit 


From 2342d6a6512ce5a3d2433bf77e6580e738cfd709 Mon Sep 17 00:00:00 2001
From: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Date: Tue, 5 Nov 2013 21:20:27 +1030
Subject: virtio_ring: adapt to notify() returning bool

Correct if statement to check for bool returned by notify()
(introduced in 5b1bf7cb673a).

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 drivers/virtio/virtio_ring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index f47777582ce5..28b5338fff71 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -441,7 +441,7 @@ bool virtqueue_notify(struct virtqueue *_vq)
 		return false;
 
 	/* Prod other side to tell it about changes. */
-	if (vq->notify(_vq) < 0) {
+	if (!vq->notify(_vq)) {
 		vq->broken = true;
 		return false;
 	}
-- 
cgit 


From f262f0f5cad0c9eca61d1d383e3b67b57dcbe5ea Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Tue, 5 Nov 2013 19:36:27 +0800
Subject: crypto: s390 - Fix aes-cbc IV corruption

The cbc-aes-s390 algorithm incorrectly places the IV in the tfm
data structure.  As the tfm is shared between multiple threads,
this introduces a possibility of data corruption.

This patch fixes this by moving the parameter block containing
the IV and key onto the stack (the block is 48 bytes long).

The same bug exists elsewhere in the s390 crypto system and they
will be fixed in subsequent patches.

Cc: stable@vger.kernel.org
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 arch/s390/crypto/aes_s390.c | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index b4dbade8ca24..2e4b5be31a1b 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -35,7 +35,6 @@ static u8 *ctrblk;
 static char keylen_flag;
 
 struct s390_aes_ctx {
-	u8 iv[AES_BLOCK_SIZE];
 	u8 key[AES_MAX_KEY_SIZE];
 	long enc;
 	long dec;
@@ -441,30 +440,36 @@ static int cbc_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
 	return aes_set_key(tfm, in_key, key_len);
 }
 
-static int cbc_aes_crypt(struct blkcipher_desc *desc, long func, void *param,
+static int cbc_aes_crypt(struct blkcipher_desc *desc, long func,
 			 struct blkcipher_walk *walk)
 {
+	struct s390_aes_ctx *sctx = crypto_blkcipher_ctx(desc->tfm);
 	int ret = blkcipher_walk_virt(desc, walk);
 	unsigned int nbytes = walk->nbytes;
+	struct {
+		u8 iv[AES_BLOCK_SIZE];
+		u8 key[AES_MAX_KEY_SIZE];
+	} param;
 
 	if (!nbytes)
 		goto out;
 
-	memcpy(param, walk->iv, AES_BLOCK_SIZE);
+	memcpy(param.iv, walk->iv, AES_BLOCK_SIZE);
+	memcpy(param.key, sctx->key, sctx->key_len);
 	do {
 		/* only use complete blocks */
 		unsigned int n = nbytes & ~(AES_BLOCK_SIZE - 1);
 		u8 *out = walk->dst.virt.addr;
 		u8 *in = walk->src.virt.addr;
 
-		ret = crypt_s390_kmc(func, param, out, in, n);
+		ret = crypt_s390_kmc(func, &param, out, in, n);
 		if (ret < 0 || ret != n)
 			return -EIO;
 
 		nbytes &= AES_BLOCK_SIZE - 1;
 		ret = blkcipher_walk_done(desc, walk, nbytes);
 	} while ((nbytes = walk->nbytes));
-	memcpy(walk->iv, param, AES_BLOCK_SIZE);
+	memcpy(walk->iv, param.iv, AES_BLOCK_SIZE);
 
 out:
 	return ret;
@@ -481,7 +486,7 @@ static int cbc_aes_encrypt(struct blkcipher_desc *desc,
 		return fallback_blk_enc(desc, dst, src, nbytes);
 
 	blkcipher_walk_init(&walk, dst, src, nbytes);
-	return cbc_aes_crypt(desc, sctx->enc, sctx->iv, &walk);
+	return cbc_aes_crypt(desc, sctx->enc, &walk);
 }
 
 static int cbc_aes_decrypt(struct blkcipher_desc *desc,
@@ -495,7 +500,7 @@ static int cbc_aes_decrypt(struct blkcipher_desc *desc,
 		return fallback_blk_dec(desc, dst, src, nbytes);
 
 	blkcipher_walk_init(&walk, dst, src, nbytes);
-	return cbc_aes_crypt(desc, sctx->dec, sctx->iv, &walk);
+	return cbc_aes_crypt(desc, sctx->dec, &walk);
 }
 
 static struct crypto_alg cbc_aes_alg = {
-- 
cgit 


From b67ae3f1c97e2e8532ce051f0ed4365e9d796590 Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Tue, 5 Nov 2013 13:11:37 +0100
Subject: ALSA: hda - Enable Thinkpad mute/micmute LEDs for Realtek

Same as we already have for Conexant. Right now it's only enabled
for one machine.

Tested-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 83 +++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 81 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 01bf812455a2..02071a58f3f8 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -829,7 +829,11 @@ static inline void alc_shutup(struct hda_codec *codec)
 		snd_hda_shutup_pins(codec);
 }
 
-#define alc_free	snd_hda_gen_free
+static void alc_free(struct hda_codec *codec)
+{
+	snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_FREE);
+	snd_hda_gen_free(codec);
+}
 
 #ifdef CONFIG_PM
 static void alc_power_eapd(struct hda_codec *codec)
@@ -3527,6 +3531,74 @@ static void alc290_fixup_mono_speakers(struct hda_codec *codec,
 		snd_hda_override_wcaps(codec, 0x03, 0);
 }
 
+#if IS_ENABLED(CONFIG_THINKPAD_ACPI)
+
+#include <linux/thinkpad_acpi.h>
+
+static int (*led_set_func)(int, bool);
+
+static void update_tpacpi_mute_led(void *private_data, int enabled)
+{
+	if (led_set_func)
+		led_set_func(TPACPI_LED_MUTE, !enabled);
+}
+
+static void update_tpacpi_micmute_led(struct hda_codec *codec,
+				      struct snd_ctl_elem_value *ucontrol)
+{
+	if (!ucontrol || !led_set_func)
+		return;
+	if (strcmp("Capture Switch", ucontrol->id.name) == 0 && ucontrol->id.index == 0) {
+		/* TODO: How do I verify if it's a mono or stereo here? */
+		bool val = ucontrol->value.integer.value[0] || ucontrol->value.integer.value[1];
+		led_set_func(TPACPI_LED_MICMUTE, !val);
+	}
+}
+
+static void alc_fixup_thinkpad_acpi(struct hda_codec *codec,
+				  const struct hda_fixup *fix, int action)
+{
+	struct alc_spec *spec = codec->spec;
+	bool removefunc = false;
+
+	if (action == HDA_FIXUP_ACT_PROBE) {
+		if (!led_set_func)
+			led_set_func = symbol_request(tpacpi_led_set);
+		if (!led_set_func) {
+			snd_printk(KERN_WARNING "Failed to find thinkpad-acpi symbol tpacpi_led_set\n");
+			return;
+		}
+
+		removefunc = true;
+		if (led_set_func(TPACPI_LED_MUTE, false) >= 0) {
+			spec->gen.vmaster_mute.hook = update_tpacpi_mute_led;
+			removefunc = false;
+		}
+		if (led_set_func(TPACPI_LED_MICMUTE, false) >= 0) {
+			if (spec->gen.num_adc_nids > 1)
+				snd_printdd("Skipping micmute LED control due to several ADCs");
+			else {
+				spec->gen.cap_sync_hook = update_tpacpi_micmute_led;
+				removefunc = false;
+			}
+		}
+	}
+
+	if (led_set_func && (action == HDA_FIXUP_ACT_FREE || removefunc)) {
+		symbol_put(tpacpi_led_set);
+		led_set_func = NULL;
+	}
+}
+
+#else
+
+static void alc_fixup_thinkpad_acpi(struct hda_codec *codec,
+				  const struct hda_fixup *fix, int action)
+{
+}
+
+#endif
+
 enum {
 	ALC269_FIXUP_SONY_VAIO,
 	ALC275_FIXUP_SONY_VAIO_GPIO2,
@@ -3570,6 +3642,7 @@ enum {
 	ALC282_FIXUP_ASUS_TX300,
 	ALC283_FIXUP_INT_MIC,
 	ALC290_FIXUP_MONO_SPEAKERS,
+	ALC269_FIXUP_THINKPAD_ACPI,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
@@ -3867,6 +3940,12 @@ static const struct hda_fixup alc269_fixups[] = {
 		.chained = true,
 		.chain_id = ALC269_FIXUP_DELL3_MIC_NO_PRESENCE,
 	},
+	[ALC269_FIXUP_THINKPAD_ACPI] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc_fixup_thinkpad_acpi,
+		.chained = true,
+		.chain_id = ALC269_FIXUP_LIMIT_INT_MIC_BOOST
+	},
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -3950,7 +4029,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x17aa, 0x2208, "Thinkpad T431s", ALC269_FIXUP_LENOVO_DOCK),
 	SND_PCI_QUIRK(0x17aa, 0x220c, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
 	SND_PCI_QUIRK(0x17aa, 0x2212, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
-	SND_PCI_QUIRK(0x17aa, 0x2214, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
+	SND_PCI_QUIRK(0x17aa, 0x2214, "Thinkpad", ALC269_FIXUP_THINKPAD_ACPI),
 	SND_PCI_QUIRK(0x17aa, 0x2215, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
 	SND_PCI_QUIRK(0x17aa, 0x5013, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
 	SND_PCI_QUIRK(0x17aa, 0x501a, "Thinkpad", ALC283_FIXUP_INT_MIC),
-- 
cgit 


From a1c22cdc77744aa2f72504c42fccadef739d4159 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Tue, 5 Nov 2013 10:29:49 +0100
Subject: ALSA: atmel: remove dependency on <mach/gpio.h>

This include is completely unused since the AT91 sound driver
actually uses gpiolib properly.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/atmel/ac97c.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sound/atmel/ac97c.c b/sound/atmel/ac97c.c
index ae63d22c0f88..c5f0ddd729b3 100644
--- a/sound/atmel/ac97c.c
+++ b/sound/atmel/ac97c.c
@@ -34,7 +34,6 @@
 #include <linux/dw_dmac.h>
 
 #include <mach/cpu.h>
-#include <mach/gpio.h>
 
 #ifdef CONFIG_ARCH_AT91
 #include <mach/hardware.h>
-- 
cgit 


From 87419c9afff1431d4b62b388baf6bfa07e0b14ff Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Tue, 29 Oct 2013 10:43:16 -0600
Subject: perf kvm: Disable live command if timerfd is not supported

If the OS does not have timerfd support (e.g., older OS'es like RHEL5)
disable perf kvm stat live.

Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1383064996-20933-2-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-kvm.c                        | 12 ++++++++++++
 tools/perf/config/Makefile                      |  7 +++++++
 tools/perf/config/feature-checks/Makefile       |  6 +++++-
 tools/perf/config/feature-checks/test-all.c     |  5 +++++
 tools/perf/config/feature-checks/test-timerfd.c | 18 ++++++++++++++++++
 5 files changed, 47 insertions(+), 1 deletion(-)
 create mode 100644 tools/perf/config/feature-checks/test-timerfd.c

diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index cb05f39d8a77..cd9f92078aba 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -20,7 +20,9 @@
 #include "util/data.h"
 
 #include <sys/prctl.h>
+#ifdef HAVE_TIMERFD_SUPPORT
 #include <sys/timerfd.h>
+#endif
 
 #include <termios.h>
 #include <semaphore.h>
@@ -337,6 +339,7 @@ static void init_kvm_event_record(struct perf_kvm_stat *kvm)
 		INIT_LIST_HEAD(&kvm->kvm_events_cache[i]);
 }
 
+#ifdef HAVE_TIMERFD_SUPPORT
 static void clear_events_cache_stats(struct list_head *kvm_events_cache)
 {
 	struct list_head *head;
@@ -358,6 +361,7 @@ static void clear_events_cache_stats(struct list_head *kvm_events_cache)
 		}
 	}
 }
+#endif
 
 static int kvm_events_hash_fn(u64 key)
 {
@@ -783,6 +787,7 @@ static void print_result(struct perf_kvm_stat *kvm)
 		pr_info("\nLost events: %" PRIu64 "\n\n", kvm->lost_events);
 }
 
+#ifdef HAVE_TIMERFD_SUPPORT
 static int process_lost_event(struct perf_tool *tool,
 			      union perf_event *event __maybe_unused,
 			      struct perf_sample *sample __maybe_unused,
@@ -793,6 +798,7 @@ static int process_lost_event(struct perf_tool *tool,
 	kvm->lost_events++;
 	return 0;
 }
+#endif
 
 static bool skip_sample(struct perf_kvm_stat *kvm,
 			struct perf_sample *sample)
@@ -872,6 +878,7 @@ static bool verify_vcpu(int vcpu)
 	return true;
 }
 
+#ifdef HAVE_TIMERFD_SUPPORT
 /* keeping the max events to a modest level to keep
  * the processing of samples per mmap smooth.
  */
@@ -1213,6 +1220,7 @@ static int kvm_live_open_events(struct perf_kvm_stat *kvm)
 out:
 	return rc;
 }
+#endif
 
 static int read_events(struct perf_kvm_stat *kvm)
 {
@@ -1379,6 +1387,7 @@ kvm_events_report(struct perf_kvm_stat *kvm, int argc, const char **argv)
 	return kvm_events_report_vcpu(kvm);
 }
 
+#ifdef HAVE_TIMERFD_SUPPORT
 static struct perf_evlist *kvm_live_event_list(void)
 {
 	struct perf_evlist *evlist;
@@ -1566,6 +1575,7 @@ out:
 
 	return err;
 }
+#endif
 
 static void print_kvm_stat_usage(void)
 {
@@ -1604,8 +1614,10 @@ static int kvm_cmd_stat(const char *file_name, int argc, const char **argv)
 	if (!strncmp(argv[1], "rep", 3))
 		return kvm_events_report(&kvm, argc - 1 , argv + 1);
 
+#ifdef HAVE_TIMERFD_SUPPORT
 	if (!strncmp(argv[1], "live", 4))
 		return kvm_events_live(&kvm, argc - 1 , argv + 1);
+#endif
 
 perf_stat:
 	return cmd_stat(argc, argv, NULL);
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index ffb5f55c8fba..be8bb9a77287 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -397,6 +397,13 @@ else
   endif
 endif
 
+$(call feature_check,timerfd)
+ifeq ($(feature-timerfd), 1)
+  CFLAGS += -DHAVE_TIMERFD_SUPPORT
+else
+  msg := $(warning No timerfd support. Disables 'perf kvm stat live');
+endif
+
 disable-python = $(eval $(disable-python_code))
 define disable-python_code
   CFLAGS += -DNO_LIBPYTHON
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index d37d58d273fe..c803f17fb986 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -25,7 +25,8 @@ FILES=					\
 	test-libunwind			\
 	test-on-exit			\
 	test-stackprotector-all		\
-	test-stackprotector
+	test-stackprotector		\
+	test-timerfd
 
 CC := $(CC) -MD
 
@@ -136,6 +137,9 @@ test-on-exit:
 test-backtrace:
 	$(BUILD)
 
+test-timerfd:
+	$(BUILD)
+
 -include *.d
 
 ###############################
diff --git a/tools/perf/config/feature-checks/test-all.c b/tools/perf/config/feature-checks/test-all.c
index 50d431892a0c..59e7a705e146 100644
--- a/tools/perf/config/feature-checks/test-all.c
+++ b/tools/perf/config/feature-checks/test-all.c
@@ -81,6 +81,10 @@
 # include "test-libnuma.c"
 #undef main
 
+#define main main_test_timerfd
+# include "test-timerfd.c"
+#undef main
+
 int main(int argc, char *argv[])
 {
 	main_test_libpython();
@@ -101,6 +105,7 @@ int main(int argc, char *argv[])
 	main_test_on_exit();
 	main_test_backtrace();
 	main_test_libnuma();
+	main_test_timerfd();
 
 	return 0;
 }
diff --git a/tools/perf/config/feature-checks/test-timerfd.c b/tools/perf/config/feature-checks/test-timerfd.c
new file mode 100644
index 000000000000..8c5c083b4d3c
--- /dev/null
+++ b/tools/perf/config/feature-checks/test-timerfd.c
@@ -0,0 +1,18 @@
+/*
+ * test for timerfd functions used by perf-kvm-stat-live
+ */
+#include <sys/timerfd.h>
+
+int main(void)
+{
+	struct itimerspec new_value;
+
+	int fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK);
+	if (fd < 0)
+		return 1;
+
+	if (timerfd_settime(fd, 0, &new_value, NULL) != 0)
+		return 1;
+
+	return 0;
+}
-- 
cgit 


From 5febff0066b8111785d58903b54d414e9ec6a3d0 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Tue, 29 Oct 2013 10:43:15 -0600
Subject: tools/perf/build: Fix detection of non-core features

feature_check needs to be invoked through call, and LDFLAGS may not be
set so quotes are needed.

Thanks to Jiri for spotting the quotes around LDFLAGS; that one was
driving me nuts with the upcoming timerfd feature detection.

Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Jiri Olsa <jolsa@redhat.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1383064996-20933-1-git-send-email-dsahern@gmail.com
[ Fixed conflict with 8a0c4c2843d3 ("perf tools: Fix libunwind build and feature detection for 32-bit build") ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/config/Makefile | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index be8bb9a77287..58b2d37ae23a 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -98,7 +98,7 @@ endif
 
 feature_check = $(eval $(feature_check_code))
 define feature_check_code
-  feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS)" LDFLAGS=$(LDFLAGS) LIBUNWIND_LIBS="$(LIBUNWIND_LIBS)" -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
+  feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS)" LDFLAGS="$(LDFLAGS)" LIBUNWIND_LIBS="$(LIBUNWIND_LIBS)" -C config/feature-checks test-$1 >/dev/null 2>/dev/null && echo 1 || echo 0)
 endef
 
 feature_set = $(eval $(feature_set_code))
@@ -235,7 +235,7 @@ CFLAGS += -I$(LIB_INCLUDE)
 CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
 
 ifndef NO_BIONIC
-  $(feature_check,bionic)
+  $(call feature_check,bionic)
   ifeq ($(feature-bionic), 1)
     BIONIC := 1
     EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
@@ -479,15 +479,15 @@ else
     CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
   else
     ifneq ($(feature-libbfd), 1)
-      $(feature_check,liberty)
+      $(call feature_check,liberty)
       ifeq ($(feature-liberty), 1)
         EXTLIBS += -lbfd -liberty
       else
-        $(feature_check,liberty-z)
+        $(call feature_check,liberty-z)
         ifeq ($(feature-liberty-z), 1)
           EXTLIBS += -lbfd -liberty -lz
         else
-          $(feature_check,cplus-demangle)
+          $(call feature_check,cplus-demangle)
           ifeq ($(feature-cplus-demangle), 1)
             EXTLIBS += -liberty
             CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
-- 
cgit 


From ee4f96d0f02cda38dd22538bbd595742b2bfd089 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Wed, 31 Jul 2013 11:34:27 +0800
Subject: openrisc: Makefile: append "-D__linux__" to KBUILD_CFLAGS

Need append "_D__linux__" to KBUILD_CFLAGS, just like some of another
architectures have done, or 'allmodconfig' can not pass compiling.

The related error:

    CC [M]  fs/coda/psdev.o
  In file included from include/linux/coda.h:65:0,
                   from fs/coda/psdev.c:45:
  include/uapi/linux/coda.h:221:2: error: expected specifier-qualifier-list before 'u_quad_t'

The related compiler information:

  [root@dhcp122 ~]# /usr/local/bin/or32-linux-gcc -v
  Using built-in specs.
  COLLECT_GCC=/usr/local/bin/or32-linux-gcc
  COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/or32-linux/4.5.1-or32-1.0rc1/lto-wrapper
  Target: or32-linux
  Configured with: ../gcc-openrisc/configure --target=or32-linux --disable-nls --enable-languages=c --without-headers --disable-shared --disable-threads --enable-werror=no
  Thread model: single
  gcc version 4.5.1-or32-1.0rc1 (GCC)

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Jonas Bonn <jonas@southpole.se>
---
 arch/openrisc/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/openrisc/Makefile b/arch/openrisc/Makefile
index 4739b8302a58..89076a66eee2 100644
--- a/arch/openrisc/Makefile
+++ b/arch/openrisc/Makefile
@@ -24,7 +24,7 @@ OBJCOPYFLAGS    := -O binary -R .note -R .comment -S
 LDFLAGS_vmlinux :=
 LIBGCC 		:= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
 
-KBUILD_CFLAGS	+= -pipe -ffixed-r10
+KBUILD_CFLAGS	+= -pipe -ffixed-r10 -D__linux__
 
 ifeq ($(CONFIG_OPENRISC_HAVE_INST_MUL),y)
 	KBUILD_CFLAGS += $(call cc-option,-mhard-mul)
-- 
cgit 


From f69405ce6c0fc9f4a039011007371b31f80b470d Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Tue, 30 Jul 2013 15:58:11 +0800
Subject: openrisc: include: asm: Kbuild: add default "vga.h"

Add default "vga.h", or compiling fails with 'allmodconfig'.

The related error:

    CC [M]  drivers/gpu/drm/drm_irq.o
  In file included from include/linux/vgaarb.h:34:0,
                   from drivers/gpu/drm/drm_irq.c:42:
  include/video/vga.h:22:21: fatal error: asm/vga.h: No such file or directory
  compilation terminated.
  make[3]: *** [drivers/gpu/drm/drm_irq.o] Error 1
  make[2]: *** [drivers/gpu/drm] Error 2
  make[1]: *** [drivers/gpu] Error 2
  make: *** [drivers] Error 2

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Jonas Bonn <jonas@southpole.se>
---
 arch/openrisc/include/asm/Kbuild | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild
index 195653e851da..6bdc2701f028 100644
--- a/arch/openrisc/include/asm/Kbuild
+++ b/arch/openrisc/include/asm/Kbuild
@@ -65,5 +65,6 @@ generic-y += trace_clock.h
 generic-y += types.h
 generic-y += ucontext.h
 generic-y += user.h
+generic-y += vga.h
 generic-y += word-at-a-time.h
 generic-y += xor.h
-- 
cgit 


From 56aea88df7b3930b3010488bdf9d1796bb051fb1 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Fri, 25 Oct 2013 16:37:56 +0200
Subject: openrisc: Refactor 16-bit constant relocation

arch/openrisc/kernel/module.c: In function 'apply_relocate_add':
arch/openrisc/kernel/module.c:50:13: warning: assignment from incompatible pointer type
arch/openrisc/kernel/module.c:54:13: warning: assignment from incompatible pointer type

Move the pointer increments to the dereference statements to avoid
incompatible pointer assignments, and remove superfluous casts.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jonas Bonn <jonas@southpole.se>
---
 arch/openrisc/kernel/module.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/openrisc/kernel/module.c b/arch/openrisc/kernel/module.c
index 10ff50f0202a..ef872ae4c878 100644
--- a/arch/openrisc/kernel/module.c
+++ b/arch/openrisc/kernel/module.c
@@ -47,12 +47,10 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
 			*location = value;
 			break;
 		case R_OR32_CONST:
-			location = (uint16_t *)location + 1;
-			*((uint16_t *)location) = (uint16_t) (value);
+			*((uint16_t *)location + 1) = value;
 			break;
 		case R_OR32_CONSTH:
-			location = (uint16_t *)location + 1;
-			*((uint16_t *)location) = (uint16_t) (value >> 16);
+			*((uint16_t *)location + 1) = value >> 16;
 			break;
 		case R_OR32_JUMPTARG:
 			value -= (uint32_t)location;
-- 
cgit 


From b50eba7e2d534762a19a7207dda012f09302a8d2 Mon Sep 17 00:00:00 2001
From: Richard Guy Briggs <rgb@redhat.com>
Date: Mon, 16 Sep 2013 18:20:42 -0400
Subject: audit: format user messages to size of MAX_AUDIT_MESSAGE_LENGTH

Messages of type AUDIT_USER_TTY were being formatted to 1024 octets,
truncating messages approaching MAX_AUDIT_MESSAGE_LENGTH (8970 octets).

Set the formatting to 8560 characters, given maximum estimates for prefix and
suffix budgets.

See the problem discussion:
https://www.redhat.com/archives/linux-audit/2009-January/msg00030.html

And the new size rationale:
https://www.redhat.com/archives/linux-audit/2013-September/msg00016.html

Test ~8k messages with:
auditctl -m "$(for i in $(seq -w 001 820);do echo -n "${i}0______";done)"

Reported-by: LC Bruzenak <lenny@magitekltd.com>
Reported-by: Justin Stephenson <jstephen@redhat.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 include/uapi/linux/audit.h | 6 ++++++
 kernel/audit.c             | 3 ++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index 75cef3fd97ad..5dfcd85037e2 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -358,6 +358,12 @@ enum {
 #define AUDIT_PERM_READ		4
 #define AUDIT_PERM_ATTR		8
 
+/* MAX_AUDIT_MESSAGE_LENGTH is set in audit:lib/libaudit.h as:
+ * 8970 // PATH_MAX*2+CONTEXT_SIZE*2+11+256+1
+ * max header+body+tailer: 44 + 29 + 32 + 262 + 7 + pad
+ */
+#define AUDIT_MESSAGE_TEXT_MAX	8560
+
 struct audit_status {
 	__u32		mask;		/* Bit mask for valid entries */
 	__u32		enabled;	/* 1 = enabled, 0 = disabled */
diff --git a/kernel/audit.c b/kernel/audit.c
index 91e53d04b6a9..dd63d2f978d5 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -715,7 +715,8 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 			}
 			audit_log_common_recv_msg(&ab, msg_type);
 			if (msg_type != AUDIT_USER_TTY)
-				audit_log_format(ab, " msg='%.1024s'",
+				audit_log_format(ab, " msg='%.*s'",
+						 AUDIT_MESSAGE_TEXT_MAX,
 						 (char *)data);
 			else {
 				int size;
-- 
cgit 


From 47145705e3e2894b6c73846b67734726c5d7173c Mon Sep 17 00:00:00 2001
From: "Ilya V. Matveychikov" <matvejchikov@gmail.com>
Date: Sun, 29 Sep 2013 15:53:40 +0400
Subject: audit: remove duplicate inclusion of the netlink header

Signed-off-by: Ilya V. Matveychikov <matvejchikov@gmail.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 kernel/audit.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/kernel/audit.c b/kernel/audit.c
index dd63d2f978d5..97c1ab94a960 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -60,7 +60,6 @@
 #ifdef CONFIG_SECURITY
 #include <linux/security.h>
 #endif
-#include <net/netlink.h>
 #include <linux/freezer.h>
 #include <linux/tty.h>
 #include <linux/pid_namespace.h>
-- 
cgit 


From b8f89caafeb55fba75b74bea25adc4e4cd91be67 Mon Sep 17 00:00:00 2001
From: Richard Guy Briggs <rgb@redhat.com>
Date: Wed, 18 Sep 2013 11:17:43 -0400
Subject: audit: remove newline accidentally added during session id helper
 refactor

A newline was accidentally added during session ID helper refactorization in
commit 4d3fb709.  This needlessly uses up buffer space, messes up syslog
formatting and makes userspace processing less efficient.  Remove it.

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Acked-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 kernel/audit.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/audit.c b/kernel/audit.c
index 97c1ab94a960..90699650ee4b 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -1388,7 +1388,7 @@ void audit_log_session_info(struct audit_buffer *ab)
 	u32 sessionid = audit_get_sessionid(current);
 	uid_t auid = from_kuid(&init_user_ns, audit_get_loginuid(current));
 
-	audit_log_format(ab, " auid=%u ses=%u\n", auid, sessionid);
+	audit_log_format(ab, " auid=%u ses=%u", auid, sessionid);
 }
 
 void audit_log_key(struct audit_buffer *ab, char *key)
-- 
cgit 


From af0e493d304262162dcc0e0b39ee47b12461d003 Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Mon, 23 Sep 2013 15:55:44 +0800
Subject: Audit: remove duplicate comments

Remove it.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 kernel/audit.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/kernel/audit.c b/kernel/audit.c
index 90699650ee4b..02b1b7875c92 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -1067,13 +1067,6 @@ static void wait_for_auditd(unsigned long sleep_time)
 	remove_wait_queue(&audit_backlog_wait, &wait);
 }
 
-/* Obtain an audit buffer.  This routine does locking to obtain the
- * audit buffer, but then no locking is required for calls to
- * audit_log_*format.  If the tsk is a task that is currently in a
- * syscall, then the syscall is marked as auditable and an audit record
- * will be written at syscall exit.  If there is no associated task, tsk
- * should be NULL. */
-
 /**
  * audit_log_start - obtain an audit buffer
  * @ctx: audit_context (may be NULL)
-- 
cgit 


From d48d805122e39c066898df2e460875d3aaf60508 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Sun, 15 Sep 2013 19:11:09 +0200
Subject: audit_alloc: clear TIF_SYSCALL_AUDIT if !audit_context

If audit_filter_task() nacks the new thread it makes sense
to clear TIF_SYSCALL_AUDIT which can be copied from parent
by dup_task_struct().

A wrong TIF_SYSCALL_AUDIT is not really bad but it triggers
the "slow" audit paths in entry.S to ensure the task can not
miss audit_syscall_*() calls, this is pointless if the task
has no ->audit_context.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Steve Grubb <sgrubb@redhat.com>
Acked-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 kernel/auditsc.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 9845cb32b60a..95293abb877a 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -943,8 +943,10 @@ int audit_alloc(struct task_struct *tsk)
 		return 0; /* Return if not auditing. */
 
 	state = audit_filter_task(tsk, &key);
-	if (state == AUDIT_DISABLED)
+	if (state == AUDIT_DISABLED) {
+		clear_tsk_thread_flag(tsk, TIF_SYSCALL_AUDIT);
 		return 0;
+	}
 
 	if (!(context = audit_alloc_context(state))) {
 		kfree(key);
-- 
cgit 


From 0868a5e150bc4c47e7a003367cd755811eb41e0b Mon Sep 17 00:00:00 2001
From: Tyler Hicks <tyhicks@canonical.com>
Date: Thu, 25 Jul 2013 18:02:55 -0700
Subject: audit: printk USER_AVC messages when audit isn't enabled

When the audit=1 kernel parameter is absent and auditd is not running,
AUDIT_USER_AVC messages are being silently discarded.

AUDIT_USER_AVC messages should be sent to userspace using printk(), as
mentioned in the commit message of 4a4cd633 ("AUDIT: Optimise the
audit-disabled case for discarding user messages").

When audit_enabled is 0, audit_receive_msg() discards all user messages
except for AUDIT_USER_AVC messages. However, audit_log_common_recv_msg()
refuses to allocate an audit_buffer if audit_enabled is 0. The fix is to
special case AUDIT_USER_AVC messages in both functions.

It looks like commit 50397bd1 ("[AUDIT] clean up audit_receive_msg()")
introduced this bug.

Cc: <stable@kernel.org> # v2.6.25+
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric Paris <eparis@redhat.com>
Cc: linux-audit@redhat.com
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 kernel/audit.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/audit.c b/kernel/audit.c
index 02b1b7875c92..74550ff3644f 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -612,7 +612,7 @@ static int audit_log_common_recv_msg(struct audit_buffer **ab, u16 msg_type)
 	int rc = 0;
 	uid_t uid = from_kuid(&init_user_ns, current_uid());
 
-	if (!audit_enabled) {
+	if (!audit_enabled && msg_type != AUDIT_USER_AVC) {
 		*ab = NULL;
 		return rc;
 	}
-- 
cgit 


From 42f74461a5b60cf6b42887e6d2ff5b7be4abf1ca Mon Sep 17 00:00:00 2001
From: Richard Guy Briggs <rgb@redhat.com>
Date: Mon, 20 May 2013 15:08:18 -0400
Subject: audit: change decimal constant to macro for invalid uid

SFR reported this 2013-05-15:

> After merging the final tree, today's linux-next build (i386 defconfig)
> produced this warning:
>
> kernel/auditfilter.c: In function 'audit_data_to_entry':
> kernel/auditfilter.c:426:3: warning: this decimal constant is unsigned only
> in ISO C90 [enabled by default]
>
> Introduced by commit 780a7654cee8 ("audit: Make testing for a valid
> loginuid explicit") from Linus' tree.

Replace this decimal constant in the code with a macro to make it more readable
(add to the unsigned cast to quiet the warning).

Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 include/uapi/linux/audit.h | 2 ++
 kernel/auditfilter.c       | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index 5dfcd85037e2..c1f0fced3ede 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -380,6 +380,8 @@ struct audit_tty_status {
 	__u32		log_passwd;	/* 1 = enabled, 0 = disabled */
 };
 
+#define AUDIT_UID_UNSET (unsigned int)-1
+
 /* audit_rule_data supports filter rules with both integer and string
  * fields.  It corresponds with AUDIT_ADD_RULE, AUDIT_DEL_RULE and
  * AUDIT_LIST_RULES requests.
diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c
index f7aee8be7fb2..8a344cebd8bf 100644
--- a/kernel/auditfilter.c
+++ b/kernel/auditfilter.c
@@ -423,7 +423,7 @@ static struct audit_entry *audit_data_to_entry(struct audit_rule_data *data,
 		f->lsm_rule = NULL;
 
 		/* Support legacy tests for a valid loginuid */
-		if ((f->type == AUDIT_LOGINUID) && (f->val == ~0U)) {
+		if ((f->type == AUDIT_LOGINUID) && (f->val == AUDIT_UID_UNSET)) {
 			f->type = AUDIT_LOGINUID_SET;
 			f->val = 0;
 		}
-- 
cgit 


From b0fed40214ce79ef70d97584ebdf13f89786da0e Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Wed, 22 May 2013 12:54:49 -0400
Subject: audit: implement generic feature setting and retrieving

The audit_status structure was not designed with extensibility in mind.
Define a new AUDIT_SET_FEATURE message type which takes a new structure
of bits where things can be enabled/disabled/locked one at a time.  This
structure should be able to grow in the future while maintaining forward
and backward compatibility (based loosly on the ideas from capabilities
and prctl)

This does not actually add any features, but is just infrastructure to
allow new on/off types of audit system features.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 include/linux/audit.h      |   2 +
 include/uapi/linux/audit.h |  16 +++++++
 kernel/audit.c             | 109 +++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 127 insertions(+)

diff --git a/include/linux/audit.h b/include/linux/audit.h
index 729a4d165bcc..7b31bec9bccb 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -73,6 +73,8 @@ struct audit_field {
 	void				*lsm_rule;
 };
 
+extern int is_audit_feature_set(int which);
+
 extern int __init audit_register_class(int class, unsigned *list);
 extern int audit_classify_syscall(int abi, unsigned syscall);
 extern int audit_classify_arch(int arch);
diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index c1f0fced3ede..9eddf2ca614f 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -68,6 +68,9 @@
 #define AUDIT_MAKE_EQUIV	1015	/* Append to watched tree */
 #define AUDIT_TTY_GET		1016	/* Get TTY auditing status */
 #define AUDIT_TTY_SET		1017	/* Set TTY auditing status */
+#define AUDIT_SET_FEATURE	1018	/* Turn an audit feature on or off */
+#define AUDIT_GET_FEATURE	1019	/* Get which features are enabled */
+#define AUDIT_FEATURE_CHANGE	1020	/* audit log listing feature changes */
 
 #define AUDIT_FIRST_USER_MSG	1100	/* Userspace messages mostly uninteresting to kernel */
 #define AUDIT_USER_AVC		1107	/* We filter this differently */
@@ -375,6 +378,19 @@ struct audit_status {
 	__u32		backlog;	/* messages waiting in queue */
 };
 
+struct audit_features {
+#define AUDIT_FEATURE_VERSION	1
+	__u32	vers;
+	__u32	mask;		/* which bits we are dealing with */
+	__u32	features;	/* which feature to enable/disable */
+	__u32	lock;		/* which features to lock */
+};
+
+#define AUDIT_LAST_FEATURE	-1
+
+#define audit_feature_valid(x)		((x) >= 0 && (x) <= AUDIT_LAST_FEATURE)
+#define AUDIT_FEATURE_TO_MASK(x)	(1 << ((x) & 31)) /* mask for __u32 */
+
 struct audit_tty_status {
 	__u32		enabled;	/* 1 = enabled, 0 = disabled */
 	__u32		log_passwd;	/* 1 = enabled, 0 = disabled */
diff --git a/kernel/audit.c b/kernel/audit.c
index 74550ff3644f..29ee6a421c6c 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -139,6 +139,15 @@ static struct task_struct *kauditd_task;
 static DECLARE_WAIT_QUEUE_HEAD(kauditd_wait);
 static DECLARE_WAIT_QUEUE_HEAD(audit_backlog_wait);
 
+static struct audit_features af = {.vers = AUDIT_FEATURE_VERSION,
+				   .mask = -1,
+				   .features = 0,
+				   .lock = 0,};
+
+static char *audit_feature_names[0] = {
+};
+
+
 /* Serialize requests from userspace. */
 DEFINE_MUTEX(audit_cmd_mutex);
 
@@ -583,6 +592,8 @@ static int audit_netlink_ok(struct sk_buff *skb, u16 msg_type)
 		return -EOPNOTSUPP;
 	case AUDIT_GET:
 	case AUDIT_SET:
+	case AUDIT_GET_FEATURE:
+	case AUDIT_SET_FEATURE:
 	case AUDIT_LIST_RULES:
 	case AUDIT_ADD_RULE:
 	case AUDIT_DEL_RULE:
@@ -627,6 +638,94 @@ static int audit_log_common_recv_msg(struct audit_buffer **ab, u16 msg_type)
 	return rc;
 }
 
+int is_audit_feature_set(int i)
+{
+	return af.features & AUDIT_FEATURE_TO_MASK(i);
+}
+
+
+static int audit_get_feature(struct sk_buff *skb)
+{
+	u32 seq;
+
+	seq = nlmsg_hdr(skb)->nlmsg_seq;
+
+	audit_send_reply(NETLINK_CB(skb).portid, seq, AUDIT_GET, 0, 0,
+			 &af, sizeof(af));
+
+	return 0;
+}
+
+static void audit_log_feature_change(int which, u32 old_feature, u32 new_feature,
+				     u32 old_lock, u32 new_lock, int res)
+{
+	struct audit_buffer *ab;
+
+	ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_FEATURE_CHANGE);
+	audit_log_format(ab, "feature=%s new=%d old=%d old_lock=%d new_lock=%d res=%d",
+			 audit_feature_names[which], !!old_feature, !!new_feature,
+			 !!old_lock, !!new_lock, res);
+	audit_log_end(ab);
+}
+
+static int audit_set_feature(struct sk_buff *skb)
+{
+	struct audit_features *uaf;
+	int i;
+
+	BUILD_BUG_ON(AUDIT_LAST_FEATURE + 1 > sizeof(audit_feature_names)/sizeof(audit_feature_names[0]));
+	uaf = nlmsg_data(nlmsg_hdr(skb));
+
+	/* if there is ever a version 2 we should handle that here */
+
+	for (i = 0; i <= AUDIT_LAST_FEATURE; i++) {
+		u32 feature = AUDIT_FEATURE_TO_MASK(i);
+		u32 old_feature, new_feature, old_lock, new_lock;
+
+		/* if we are not changing this feature, move along */
+		if (!(feature & uaf->mask))
+			continue;
+
+		old_feature = af.features & feature;
+		new_feature = uaf->features & feature;
+		new_lock = (uaf->lock | af.lock) & feature;
+		old_lock = af.lock & feature;
+
+		/* are we changing a locked feature? */
+		if ((af.lock & feature) && (new_feature != old_feature)) {
+			audit_log_feature_change(i, old_feature, new_feature,
+						 old_lock, new_lock, 0);
+			return -EPERM;
+		}
+	}
+	/* nothing invalid, do the changes */
+	for (i = 0; i <= AUDIT_LAST_FEATURE; i++) {
+		u32 feature = AUDIT_FEATURE_TO_MASK(i);
+		u32 old_feature, new_feature, old_lock, new_lock;
+
+		/* if we are not changing this feature, move along */
+		if (!(feature & uaf->mask))
+			continue;
+
+		old_feature = af.features & feature;
+		new_feature = uaf->features & feature;
+		old_lock = af.lock & feature;
+		new_lock = (uaf->lock | af.lock) & feature;
+
+		if (new_feature != old_feature)
+			audit_log_feature_change(i, old_feature, new_feature,
+						 old_lock, new_lock, 1);
+
+		if (new_feature)
+			af.features |= feature;
+		else
+			af.features &= ~feature;
+		af.lock |= new_lock;
+	}
+
+	return 0;
+}
+
 static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 {
 	u32			seq;
@@ -698,6 +797,16 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 		if (status_get->mask & AUDIT_STATUS_BACKLOG_LIMIT)
 			err = audit_set_backlog_limit(status_get->backlog_limit);
 		break;
+	case AUDIT_GET_FEATURE:
+		err = audit_get_feature(skb);
+		if (err)
+			return err;
+		break;
+	case AUDIT_SET_FEATURE:
+		err = audit_set_feature(skb);
+		if (err)
+			return err;
+		break;
 	case AUDIT_USER:
 	case AUDIT_FIRST_USER_MSG ... AUDIT_LAST_USER_MSG:
 	case AUDIT_FIRST_USER_MSG2 ... AUDIT_LAST_USER_MSG2:
-- 
cgit 


From b805b198dc74b73aabb6969a3db734c71c05c88c Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Fri, 24 May 2013 12:09:50 -0400
Subject: selinux: apply selinux checks on new audit message types

We use the read check to get the feature set (like AUDIT_GET) and the
write check to set the features (like AUDIT_SET).

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/selinux/nlmsgtab.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/security/selinux/nlmsgtab.c b/security/selinux/nlmsgtab.c
index 855e464e92ef..332ac8a80cf5 100644
--- a/security/selinux/nlmsgtab.c
+++ b/security/selinux/nlmsgtab.c
@@ -116,6 +116,8 @@ static struct nlmsg_perm nlmsg_audit_perms[] =
 	{ AUDIT_MAKE_EQUIV,	NETLINK_AUDIT_SOCKET__NLMSG_WRITE    },
 	{ AUDIT_TTY_GET,	NETLINK_AUDIT_SOCKET__NLMSG_READ     },
 	{ AUDIT_TTY_SET,	NETLINK_AUDIT_SOCKET__NLMSG_TTY_AUDIT	},
+	{ AUDIT_GET_FEATURE,	NETLINK_AUDIT_SOCKET__NLMSG_READ     },
+	{ AUDIT_SET_FEATURE,	NETLINK_AUDIT_SOCKET__NLMSG_WRITE    },
 };
 
 
-- 
cgit 


From da0a610497ce193782c8df4a33fee7fce030cb99 Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Fri, 24 May 2013 08:58:31 -0400
Subject: audit: loginuid functions coding style

This is just a code rework.  It makes things more readable.  It does not
make any functional changes.

It does change the log messages to include both the old session id as
well the new and it includes a new res field, which means we get
messages even when the user did not have permission to change the
loginuid.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 kernel/auditsc.c | 70 ++++++++++++++++++++++++++++++++++++--------------------
 1 file changed, 45 insertions(+), 25 deletions(-)

diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 95293abb877a..72684679e8bd 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1966,6 +1966,39 @@ int auditsc_get_stamp(struct audit_context *ctx,
 /* global counter which is incremented every time something logs in */
 static atomic_t session_id = ATOMIC_INIT(0);
 
+static int audit_set_loginuid_perm(kuid_t loginuid)
+{
+#ifdef CONFIG_AUDIT_LOGINUID_IMMUTABLE
+	/* if we are unset, we don't need privs */
+	if (!audit_loginuid_set(current))
+		return 0;
+#else	/* CONFIG_AUDIT_LOGINUID_IMMUTABLE */
+	if (capable(CAP_AUDIT_CONTROL))
+		return 0;
+#endif /* CONFIG_AUDIT_LOGINUID_IMMUTABLE */
+	return -EPERM;
+}
+
+static void audit_log_set_loginuid(kuid_t koldloginuid, kuid_t kloginuid,
+				   unsigned int oldsessionid, unsigned int sessionid,
+				   int rc)
+{
+	struct audit_buffer *ab;
+	uid_t uid, ologinuid, nloginuid;
+
+	uid = from_kuid(&init_user_ns, task_uid(current));
+	ologinuid = from_kuid(&init_user_ns, koldloginuid);
+	nloginuid = from_kuid(&init_user_ns, kloginuid),
+
+	ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_LOGIN);
+	if (!ab)
+		return;
+	audit_log_format(ab, "pid=%d uid=%u old auid=%u new auid=%u old "
+			 "ses=%u new ses=%u res=%d", current->pid, uid, ologinuid,
+			 nloginuid, oldsessionid, sessionid, !rc);
+	audit_log_end(ab);
+}
+
 /**
  * audit_set_loginuid - set current task's audit_context loginuid
  * @loginuid: loginuid value
@@ -1977,37 +2010,24 @@ static atomic_t session_id = ATOMIC_INIT(0);
 int audit_set_loginuid(kuid_t loginuid)
 {
 	struct task_struct *task = current;
-	struct audit_context *context = task->audit_context;
-	unsigned int sessionid;
+	unsigned int sessionid = -1;
+	kuid_t oldloginuid, oldsessionid;
+	int rc;
 
-#ifdef CONFIG_AUDIT_LOGINUID_IMMUTABLE
-	if (audit_loginuid_set(task))
-		return -EPERM;
-#else /* CONFIG_AUDIT_LOGINUID_IMMUTABLE */
-	if (!capable(CAP_AUDIT_CONTROL))
-		return -EPERM;
-#endif  /* CONFIG_AUDIT_LOGINUID_IMMUTABLE */
+	oldloginuid = audit_get_loginuid(current);
+	oldsessionid = audit_get_sessionid(current);
+
+	rc = audit_set_loginuid_perm(loginuid);
+	if (rc)
+		goto out;
 
 	sessionid = atomic_inc_return(&session_id);
-	if (context && context->in_syscall) {
-		struct audit_buffer *ab;
 
-		ab = audit_log_start(NULL, GFP_KERNEL, AUDIT_LOGIN);
-		if (ab) {
-			audit_log_format(ab, "login pid=%d uid=%u "
-				"old auid=%u new auid=%u"
-				" old ses=%u new ses=%u",
-				task->pid,
-				from_kuid(&init_user_ns, task_uid(task)),
-				from_kuid(&init_user_ns, task->loginuid),
-				from_kuid(&init_user_ns, loginuid),
-				task->sessionid, sessionid);
-			audit_log_end(ab);
-		}
-	}
 	task->sessionid = sessionid;
 	task->loginuid = loginuid;
-	return 0;
+out:
+	audit_log_set_loginuid(oldloginuid, loginuid, oldsessionid, sessionid, rc);
+	return rc;
 }
 
 /**
-- 
cgit 


From 83fa6bbe4c4541ae748b550b4ec391f8a0acfe94 Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Fri, 24 May 2013 09:39:29 -0400
Subject: audit: remove CONFIG_AUDIT_LOGINUID_IMMUTABLE

After trying to use this feature in Fedora we found the hard coding
policy like this into the kernel was a bad idea.  Surprise surprise.
We ran into these problems because it was impossible to launch a
container as a logged in user and run a login daemon inside that container.
This reverts back to the old behavior before this option was added.  The
option will be re-added in a userspace selectable manor such that
userspace can choose when it is and when it is not appropriate.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 init/Kconfig     | 14 --------------
 kernel/auditsc.c | 10 ++++------
 2 files changed, 4 insertions(+), 20 deletions(-)

diff --git a/init/Kconfig b/init/Kconfig
index fed81b576f29..18a98c893d07 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -301,20 +301,6 @@ config AUDIT_TREE
 	depends on AUDITSYSCALL
 	select FSNOTIFY
 
-config AUDIT_LOGINUID_IMMUTABLE
-	bool "Make audit loginuid immutable"
-	depends on AUDIT
-	help
-	  The config option toggles if a task setting its loginuid requires
-	  CAP_SYS_AUDITCONTROL or if that task should require no special permissions
-	  but should instead only allow setting its loginuid if it was never
-	  previously set.  On systems which use systemd or a similar central
-	  process to restart login services this should be set to true.  On older
-	  systems in which an admin would typically have to directly stop and
-	  start processes this should be set to false.  Setting this to true allows
-	  one to drop potentially dangerous capabilites from the login tasks,
-	  but may not be backwards compatible with older init systems.
-
 source "kernel/irq/Kconfig"
 source "kernel/time/Kconfig"
 
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 72684679e8bd..b55788bf1607 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1968,15 +1968,13 @@ static atomic_t session_id = ATOMIC_INIT(0);
 
 static int audit_set_loginuid_perm(kuid_t loginuid)
 {
-#ifdef CONFIG_AUDIT_LOGINUID_IMMUTABLE
 	/* if we are unset, we don't need privs */
 	if (!audit_loginuid_set(current))
 		return 0;
-#else	/* CONFIG_AUDIT_LOGINUID_IMMUTABLE */
-	if (capable(CAP_AUDIT_CONTROL))
-		return 0;
-#endif /* CONFIG_AUDIT_LOGINUID_IMMUTABLE */
-	return -EPERM;
+	/* it is set, you need permission */
+	if (!capable(CAP_AUDIT_CONTROL))
+		return -EPERM;
+	return 0;
 }
 
 static void audit_log_set_loginuid(kuid_t koldloginuid, kuid_t kloginuid,
-- 
cgit 


From 81407c84ace88368ff23abb81caaeacf050c8450 Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Fri, 24 May 2013 09:49:14 -0400
Subject: audit: allow unsetting the loginuid (with priv)

If a task has CAP_AUDIT_CONTROL allow that task to unset their loginuid.
This would allow a child of that task to set their loginuid without
CAP_AUDIT_CONTROL.  Thus when launching a new login daemon, a
priviledged helper would be able to unset the loginuid and then the
daemon, which may be malicious user facing, do not need priv to function
correctly.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 fs/proc/base.c   | 14 ++++++++++----
 kernel/auditsc.c |  4 +++-
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/fs/proc/base.c b/fs/proc/base.c
index 1485e38daaa3..03c8d747be48 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -1151,10 +1151,16 @@ static ssize_t proc_loginuid_write(struct file * file, const char __user * buf,
 		goto out_free_page;
 
 	}
-	kloginuid = make_kuid(file->f_cred->user_ns, loginuid);
-	if (!uid_valid(kloginuid)) {
-		length = -EINVAL;
-		goto out_free_page;
+
+	/* is userspace tring to explicitly UNSET the loginuid? */
+	if (loginuid == AUDIT_UID_UNSET) {
+		kloginuid = INVALID_UID;
+	} else {
+		kloginuid = make_kuid(file->f_cred->user_ns, loginuid);
+		if (!uid_valid(kloginuid)) {
+			length = -EINVAL;
+			goto out_free_page;
+		}
 	}
 
 	length = audit_set_loginuid(kloginuid);
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index b55788bf1607..c75d7813aef2 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -2019,7 +2019,9 @@ int audit_set_loginuid(kuid_t loginuid)
 	if (rc)
 		goto out;
 
-	sessionid = atomic_inc_return(&session_id);
+	/* are we setting or clearing? */
+	if (uid_valid(loginuid))
+		sessionid = atomic_inc_return(&session_id);
 
 	task->sessionid = sessionid;
 	task->loginuid = loginuid;
-- 
cgit 


From d040e5af380554c23ffe0a034ae5f3e53da93a1d Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Fri, 24 May 2013 09:18:04 -0400
Subject: audit: audit feature to only allow unsetting the loginuid

This is a new audit feature which only grants processes with
CAP_AUDIT_CONTROL the ability to unset their loginuid.  They cannot
directly set it from a valid uid to another valid uid.  The ability to
unset the loginuid is nice because a priviledged task, like that of
container creation, can unset the loginuid and then priv is not needed
inside the container when a login daemon needs to set the loginuid.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 include/uapi/linux/audit.h | 3 ++-
 kernel/audit.c             | 3 ++-
 kernel/auditsc.c           | 3 +++
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index 9eddf2ca614f..05e5e8fc2ac4 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -386,7 +386,8 @@ struct audit_features {
 	__u32	lock;		/* which features to lock */
 };
 
-#define AUDIT_LAST_FEATURE	-1
+#define AUDIT_FEATURE_ONLY_UNSET_LOGINUID	0
+#define AUDIT_LAST_FEATURE			AUDIT_FEATURE_ONLY_UNSET_LOGINUID
 
 #define audit_feature_valid(x)		((x) >= 0 && (x) <= AUDIT_LAST_FEATURE)
 #define AUDIT_FEATURE_TO_MASK(x)	(1 << ((x) & 31)) /* mask for __u32 */
diff --git a/kernel/audit.c b/kernel/audit.c
index 29ee6a421c6c..fbfa3a74decb 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -144,7 +144,8 @@ static struct audit_features af = {.vers = AUDIT_FEATURE_VERSION,
 				   .features = 0,
 				   .lock = 0,};
 
-static char *audit_feature_names[0] = {
+static char *audit_feature_names[1] = {
+	"only_unset_loginuid",
 };
 
 
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index c75d7813aef2..924c0bf048d2 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1974,6 +1974,9 @@ static int audit_set_loginuid_perm(kuid_t loginuid)
 	/* it is set, you need permission */
 	if (!capable(CAP_AUDIT_CONTROL))
 		return -EPERM;
+	/* reject if this is not an unset and we don't allow that */
+	if (is_audit_feature_set(AUDIT_FEATURE_ONLY_UNSET_LOGINUID) && uid_valid(loginuid))
+		return -EPERM;
 	return 0;
 }
 
-- 
cgit 


From 21b85c31d23f2047d47e1f74bfa5caa8b75c1c77 Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Thu, 23 May 2013 14:26:00 -0400
Subject: audit: audit feature to set loginuid immutable

This adds a new 'audit_feature' bit which allows userspace to set it
such that the loginuid is absolutely immutable, even if you have
CAP_AUDIT_CONTROL.

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 include/uapi/linux/audit.h | 3 ++-
 kernel/audit.c             | 3 ++-
 kernel/auditsc.c           | 3 +++
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h
index 05e5e8fc2ac4..e2f0d9977131 100644
--- a/include/uapi/linux/audit.h
+++ b/include/uapi/linux/audit.h
@@ -387,7 +387,8 @@ struct audit_features {
 };
 
 #define AUDIT_FEATURE_ONLY_UNSET_LOGINUID	0
-#define AUDIT_LAST_FEATURE			AUDIT_FEATURE_ONLY_UNSET_LOGINUID
+#define AUDIT_FEATURE_LOGINUID_IMMUTABLE	1
+#define AUDIT_LAST_FEATURE			AUDIT_FEATURE_LOGINUID_IMMUTABLE
 
 #define audit_feature_valid(x)		((x) >= 0 && (x) <= AUDIT_LAST_FEATURE)
 #define AUDIT_FEATURE_TO_MASK(x)	(1 << ((x) & 31)) /* mask for __u32 */
diff --git a/kernel/audit.c b/kernel/audit.c
index fbfa3a74decb..f3f36f5eb4ae 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -144,8 +144,9 @@ static struct audit_features af = {.vers = AUDIT_FEATURE_VERSION,
 				   .features = 0,
 				   .lock = 0,};
 
-static char *audit_feature_names[1] = {
+static char *audit_feature_names[2] = {
 	"only_unset_loginuid",
+	"loginuid_immutable",
 };
 
 
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 924c0bf048d2..63223d671a6e 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1971,6 +1971,9 @@ static int audit_set_loginuid_perm(kuid_t loginuid)
 	/* if we are unset, we don't need privs */
 	if (!audit_loginuid_set(current))
 		return 0;
+	/* if AUDIT_FEATURE_LOGINUID_IMMUTABLE means never ever allow a change*/
+	if (is_audit_feature_set(AUDIT_FEATURE_LOGINUID_IMMUTABLE))
+		return -EPERM;
 	/* it is set, you need permission */
 	if (!capable(CAP_AUDIT_CONTROL))
 		return -EPERM;
-- 
cgit 


From db510fc5cd9b9db214d7ec1828662942fac19c8c Mon Sep 17 00:00:00 2001
From: Richard Guy Briggs <rgb@redhat.com>
Date: Thu, 4 Jul 2013 12:56:11 -0400
Subject: audit: update AUDIT_INODE filter rule to comparator function

It appears this one comparison function got missed in f368c07d (and 9c937dcc).

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 kernel/auditsc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 63223d671a6e..065c7a14935e 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -566,7 +566,7 @@ static int audit_filter_rules(struct task_struct *tsk,
 			break;
 		case AUDIT_INODE:
 			if (name)
-				result = (name->ino == f->val);
+				result = audit_comparator(name->ino, f->op, f->val);
 			else if (ctx) {
 				list_for_each_entry(n, &ctx->names_list, list) {
 					if (audit_comparator(n->ino, f->op, f->val)) {
-- 
cgit 


From 64fbff9ae0a0a843365d922e0057fc785f23f0e3 Mon Sep 17 00:00:00 2001
From: Mathias Krause <minipli@googlemail.com>
Date: Mon, 30 Sep 2013 22:04:24 +0200
Subject: audit: fix info leak in AUDIT_GET requests

We leak 4 bytes of kernel stack in response to an AUDIT_GET request as
we miss to initialize the mask member of status_set. Fix that.

Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric Paris <eparis@redhat.com>
Cc: stable@vger.kernel.org  # v2.6.6+
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 kernel/audit.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/audit.c b/kernel/audit.c
index f3f36f5eb4ae..e0f7767e4a3d 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -759,6 +759,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 
 	switch (msg_type) {
 	case AUDIT_GET:
+		status_set.mask		 = 0;
 		status_set.enabled	 = audit_enabled;
 		status_set.failure	 = audit_failure;
 		status_set.pid		 = audit_pid;
-- 
cgit 


From e13f91e3c57986a609c10ddf94af0546a2a97dce Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Tue, 5 Nov 2013 10:48:02 -0500
Subject: audit: use memset instead of trying to initialize field by field

We currently are setting fields to 0 to initialize the structure
declared on the stack.  This is a bad idea as if the structure has holes
or unpacked space these will not be initialized.  Just use memset.  This
is not a performance critical section of code.

Signed-off-by: Eric Paris <eparis@redhat.com>
---
 kernel/audit.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/audit.c b/kernel/audit.c
index e0f7767e4a3d..3ce60e063aae 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -759,7 +759,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 
 	switch (msg_type) {
 	case AUDIT_GET:
-		status_set.mask		 = 0;
+		memset(&status_set, 0, sizeof(status_set));
 		status_set.enabled	 = audit_enabled;
 		status_set.failure	 = audit_failure;
 		status_set.pid		 = audit_pid;
-- 
cgit 


From 4d8fe7376a12bf4524783dd95cbc00f1fece6232 Mon Sep 17 00:00:00 2001
From: Mathias Krause <minipli@googlemail.com>
Date: Mon, 30 Sep 2013 22:04:25 +0200
Subject: audit: use nlmsg_len() to get message payload length

Using the nlmsg_len member of the netlink header to test if the message
is valid is wrong as it includes the size of the netlink header itself.
Thereby allowing to send short netlink messages that pass those checks.

Use nlmsg_len() instead to test for the right message length. The result
of nlmsg_len() is guaranteed to be non-negative as the netlink message
already passed the checks of nlmsg_ok().

Also switch to min_t() to please checkpatch.pl.

Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Eric Paris <eparis@redhat.com>
Cc: stable@vger.kernel.org  # v2.6.6+ for the 1st hunk, v2.6.23+ for the 2nd
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 kernel/audit.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/audit.c b/kernel/audit.c
index 3ce60e063aae..3ad14e6e00bd 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -771,7 +771,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 				 &status_set, sizeof(status_set));
 		break;
 	case AUDIT_SET:
-		if (nlh->nlmsg_len < sizeof(struct audit_status))
+		if (nlmsg_len(nlh) < sizeof(struct audit_status))
 			return -EINVAL;
 		status_get   = (struct audit_status *)data;
 		if (status_get->mask & AUDIT_STATUS_ENABLED) {
@@ -944,7 +944,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 
 		memset(&s, 0, sizeof(s));
 		/* guard against past and future API changes */
-		memcpy(&s, data, min(sizeof(s), (size_t)nlh->nlmsg_len));
+		memcpy(&s, data, min_t(size_t, sizeof(s), nlmsg_len(nlh)));
 		if ((s.enabled != 0 && s.enabled != 1) ||
 		    (s.log_passwd != 0 && s.log_passwd != 1))
 			return -EINVAL;
-- 
cgit 


From b95d77fe341b9c9641addb326cf43c30d1ba23b8 Mon Sep 17 00:00:00 2001
From: Richard Guy Briggs <rgb@redhat.com>
Date: Fri, 3 May 2013 14:03:49 -0400
Subject: audit: use given values in tty_audit enable api

In send/GET, we don't want the kernel to lie about what value is set.

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 kernel/audit.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/audit.c b/kernel/audit.c
index 3ad14e6e00bd..616164038ad4 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -930,7 +930,7 @@ static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 		struct task_struct *tsk = current;
 
 		spin_lock(&tsk->sighand->siglock);
-		s.enabled = tsk->signal->audit_tty != 0;
+		s.enabled = tsk->signal->audit_tty;
 		s.log_passwd = tsk->signal->audit_tty_log_passwd;
 		spin_unlock(&tsk->sighand->siglock);
 
-- 
cgit 


From 14e972b4517128ac8e30e3de2ee4fbd995084223 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@redhat.com>
Date: Wed, 8 May 2013 10:25:58 -0400
Subject: audit: add child record before the create to handle case where create
 fails

Historically, when a syscall that creates a dentry fails, you get an audit
record that looks something like this (when trying to create a file named
"new" in "/tmp/tmp.SxiLnCcv63"):

    type=PATH msg=audit(1366128956.279:965): item=0 name="/tmp/tmp.SxiLnCcv63/new" inode=2138308 dev=fd:02 mode=040700 ouid=0 ogid=0 rdev=00:00 obj=staff_u:object_r:user_tmp_t:s15:c0.c1023

This record makes no sense since it's associating the inode information for
"/tmp/tmp.SxiLnCcv63" with the path "/tmp/tmp.SxiLnCcv63/new". The recent
patch I posted to fix the audit_inode call in do_last fixes this, by making it
look more like this:

    type=PATH msg=audit(1366128765.989:13875): item=0 name="/tmp/tmp.DJ1O8V3e4f/" inode=141 dev=fd:02 mode=040700 ouid=0 ogid=0 rdev=00:00 obj=staff_u:object_r:user_tmp_t:s15:c0.c1023

While this is more correct, if the creation of the file fails, then we
have no record of the filename that the user tried to create.

This patch adds a call to audit_inode_child to may_create. This creates
an AUDIT_TYPE_CHILD_CREATE record that will sit in place until the
create succeeds. When and if the create does succeed, then this record
will be updated with the correct inode info from the create.

This fixes what was broken in commit bfcec708.
Commit 79f6530c should also be backported to stable v3.7+.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 fs/namei.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/namei.c b/fs/namei.c
index 7720fbd5277b..df9946e83db4 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -2262,6 +2262,7 @@ static int may_delete(struct inode *dir,struct dentry *victim,int isdir)
  */
 static inline int may_create(struct inode *dir, struct dentry *child)
 {
+	audit_inode_child(dir, child, AUDIT_TYPE_CHILD_CREATE);
 	if (child->d_inode)
 		return -EEXIST;
 	if (IS_DEADDIR(dir))
-- 
cgit 


From d3aea84a4ace5ff9ce7fb7714cee07bebef681c2 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@redhat.com>
Date: Wed, 8 May 2013 10:32:23 -0400
Subject: audit: log the audit_names record type

...to make it clear what the intent behind each record's operation was.

In many cases you can infer this, based on the context of the syscall
and the result. In other cases it's not so obvious. For instance, in
the case where you have a file being renamed over another, you'll have
two different records with the same filename but different inode info.
By logging this information we can clearly tell which one was created
and which was deleted.

This fixes what was broken in commit bfcec708.
Commit 79f6530c should also be backported to stable v3.7+.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 kernel/audit.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/kernel/audit.c b/kernel/audit.c
index 616164038ad4..b8831ac25b70 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -1640,6 +1640,26 @@ void audit_log_name(struct audit_context *context, struct audit_names *n,
 		}
 	}
 
+	/* log the audit_names record type */
+	audit_log_format(ab, " nametype=");
+	switch(n->type) {
+	case AUDIT_TYPE_NORMAL:
+		audit_log_format(ab, "NORMAL");
+		break;
+	case AUDIT_TYPE_PARENT:
+		audit_log_format(ab, "PARENT");
+		break;
+	case AUDIT_TYPE_CHILD_DELETE:
+		audit_log_format(ab, "DELETE");
+		break;
+	case AUDIT_TYPE_CHILD_CREATE:
+		audit_log_format(ab, "CREATE");
+		break;
+	default:
+		audit_log_format(ab, "UNKNOWN");
+		break;
+	}
+
 	audit_log_fcaps(ab, n);
 	audit_log_end(ab);
 }
-- 
cgit 


From a20b62bdf7a1ed1a334eff3c4cafa97f5826006b Mon Sep 17 00:00:00 2001
From: Richard Guy Briggs <rgb@redhat.com>
Date: Tue, 1 Oct 2013 21:14:54 -0400
Subject: audit: suppress stock memalloc failure warnings since already managed

Supress the stock memory allocation failure warnings for audit buffers
since audit alreay takes care of memory allocation failure warnings, including
rate-limiting, in audit_log_start().

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 security/lsm_audit.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/security/lsm_audit.c b/security/lsm_audit.c
index 8d8d97dbb389..b0f249d1a1ef 100644
--- a/security/lsm_audit.c
+++ b/security/lsm_audit.c
@@ -396,7 +396,8 @@ void common_lsm_audit(struct common_audit_data *a,
 	if (a == NULL)
 		return;
 	/* we use GFP_ATOMIC so we won't sleep */
-	ab = audit_log_start(current->audit_context, GFP_ATOMIC, AUDIT_AVC);
+	ab = audit_log_start(current->audit_context, GFP_ATOMIC | __GFP_NOWARN,
+			     AUDIT_AVC);
 
 	if (ab == NULL)
 		return;
-- 
cgit 


From 78122037b7e8febbd3116ab0da3ee6c34756bde9 Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Wed, 4 Sep 2013 15:01:43 -0400
Subject: audit: do not reject all AUDIT_INODE filter types

commit ab61d38ed8cf670946d12dc46b9198b521c790ea tried to merge the
invalid filter checking into a single function.  However AUDIT_INODE
filters were not verified in the new generic checker.  Thus such rules
were being denied even though they were perfectly valid.

Ex:
$ auditctl -a exit,always -F arch=b64 -S open -F key=/foo -F inode=6955 -F devmajor=9 -F devminor=1
Error sending add rule data request (Invalid argument)

Signed-off-by: Eric Paris <eparis@redhat.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 kernel/auditfilter.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c
index 8a344cebd8bf..51f3fd4c1ed3 100644
--- a/kernel/auditfilter.c
+++ b/kernel/auditfilter.c
@@ -343,6 +343,7 @@ static int audit_field_valid(struct audit_entry *entry, struct audit_field *f)
 	case AUDIT_DEVMINOR:
 	case AUDIT_EXIT:
 	case AUDIT_SUCCESS:
+	case AUDIT_INODE:
 		/* bit ops are only useful on syscall args */
 		if (f->op == Audit_bitmask || f->op == Audit_bittest)
 			return -EINVAL;
-- 
cgit 


From bd131fb1aa5e4cd879f89aef30f4f7cde6d4b409 Mon Sep 17 00:00:00 2001
From: "Eric W. Biederman" <ebiederm@xmission.com>
Date: Tue, 19 Mar 2013 00:09:40 -0700
Subject: audit: Kill the unused struct audit_aux_data_capset

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
(cherry picked from ebiederman commit 6904431d6b41190e42d6b94430b67cb4e7e6a4b7)
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 kernel/auditsc.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 065c7a14935e..c7b97aa70c6a 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -121,12 +121,6 @@ struct audit_aux_data_bprm_fcaps {
 	struct audit_cap_data	new_pcap;
 };
 
-struct audit_aux_data_capset {
-	struct audit_aux_data	d;
-	pid_t			pid;
-	struct audit_cap_data	cap;
-};
-
 struct audit_tree_refs {
 	struct audit_tree_refs *next;
 	struct audit_chunk *c[31];
-- 
cgit 


From 9462dc59817580419ef1f2504e32f861c290f251 Mon Sep 17 00:00:00 2001
From: Richard Guy Briggs <rgb@redhat.com>
Date: Wed, 23 Oct 2013 16:55:38 -0400
Subject: audit: remove unused envc member of audit_aux_data_execve

Get rid of write-only audit_aux_data_exeve structure member envc.

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 kernel/auditsc.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index c7b97aa70c6a..11078f32d13e 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -98,7 +98,6 @@ struct audit_aux_data {
 struct audit_aux_data_execve {
 	struct audit_aux_data	d;
 	int argc;
-	int envc;
 	struct mm_struct *mm;
 };
 
@@ -2158,7 +2157,6 @@ int __audit_bprm(struct linux_binprm *bprm)
 		return -ENOMEM;
 
 	ax->argc = bprm->argc;
-	ax->envc = bprm->envc;
 	ax->mm = bprm->mm;
 	ax->d.type = AUDIT_EXECVE;
 	ax->d.next = context->aux;
-- 
cgit 


From d9cfea91e97d5d19f9d69beaa844f5fe56a6adc6 Mon Sep 17 00:00:00 2001
From: Richard Guy Briggs <rgb@redhat.com>
Date: Wed, 30 Oct 2013 17:56:13 -0400
Subject: audit: move audit_aux_data_execve contents into audit_context union

audit_bprm() was being called to add an AUDIT_EXECVE record to the audit
context every time search_binary_handler() was recursively called.  Only one
reference is necessary, so just update it.  Move the the contents of
audit_aux_data_execve into the union in audit_context, removing dependence on a
kmalloc along the way.

Reported-by: Oleg Nesterov <onestero@redhat.com>
Cc: Eric Paris <eparis@redhat.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 include/linux/audit.h |  4 ++--
 kernel/audit.h        |  4 ++++
 kernel/auditsc.c      | 41 ++++++++++++-----------------------------
 3 files changed, 18 insertions(+), 31 deletions(-)

diff --git a/include/linux/audit.h b/include/linux/audit.h
index 7b31bec9bccb..08b38bf13eb9 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -209,7 +209,7 @@ static inline int audit_get_sessionid(struct task_struct *tsk)
 
 extern void __audit_ipc_obj(struct kern_ipc_perm *ipcp);
 extern void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mode);
-extern int __audit_bprm(struct linux_binprm *bprm);
+extern void __audit_bprm(struct linux_binprm *bprm);
 extern int __audit_socketcall(int nargs, unsigned long *args);
 extern int __audit_sockaddr(int len, void *addr);
 extern void __audit_fd_pair(int fd1, int fd2);
@@ -241,7 +241,7 @@ static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid
 static inline int audit_bprm(struct linux_binprm *bprm)
 {
 	if (unlikely(!audit_dummy_context()))
-		return __audit_bprm(bprm);
+		__audit_bprm(bprm);
 	return 0;
 }
 static inline int audit_socketcall(int nargs, unsigned long *args)
diff --git a/kernel/audit.h b/kernel/audit.h
index 123c9b7c3979..e7b94ab66c49 100644
--- a/kernel/audit.h
+++ b/kernel/audit.h
@@ -197,6 +197,10 @@ struct audit_context {
 			int			fd;
 			int			flags;
 		} mmap;
+		struct {
+			int			argc;
+			struct mm_struct	*mm;
+		} execve;
 	};
 	int fds[2];
 
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 11078f32d13e..425a8939be1a 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -95,12 +95,6 @@ struct audit_aux_data {
 /* Number of target pids per aux struct. */
 #define AUDIT_AUX_PIDS	16
 
-struct audit_aux_data_execve {
-	struct audit_aux_data	d;
-	int argc;
-	struct mm_struct *mm;
-};
-
 struct audit_aux_data_pids {
 	struct audit_aux_data	d;
 	pid_t			target_pid[AUDIT_AUX_PIDS];
@@ -1144,20 +1138,19 @@ static int audit_log_single_execve_arg(struct audit_context *context,
 }
 
 static void audit_log_execve_info(struct audit_context *context,
-				  struct audit_buffer **ab,
-				  struct audit_aux_data_execve *axi)
+				  struct audit_buffer **ab)
 {
 	int i, len;
 	size_t len_sent = 0;
 	const char __user *p;
 	char *buf;
 
-	if (axi->mm != current->mm)
+	if (context->execve.mm != current->mm)
 		return; /* execve failed, no additional info */
 
-	p = (const char __user *)axi->mm->arg_start;
+	p = (const char __user *)current->mm->arg_start;
 
-	audit_log_format(*ab, "argc=%d", axi->argc);
+	audit_log_format(*ab, "argc=%d", context->execve.argc);
 
 	/*
 	 * we need some kernel buffer to hold the userspace args.  Just
@@ -1171,7 +1164,7 @@ static void audit_log_execve_info(struct audit_context *context,
 		return;
 	}
 
-	for (i = 0; i < axi->argc; i++) {
+	for (i = 0; i < context->execve.argc; i++) {
 		len = audit_log_single_execve_arg(context, ab, i,
 						  &len_sent, p, buf);
 		if (len <= 0)
@@ -1274,6 +1267,9 @@ static void show_special(struct audit_context *context, int *call_panic)
 		audit_log_format(ab, "fd=%d flags=0x%x", context->mmap.fd,
 				 context->mmap.flags);
 		break; }
+	case AUDIT_EXECVE: {
+		audit_log_execve_info(context, &ab);
+		break; }
 	}
 	audit_log_end(ab);
 }
@@ -1320,11 +1316,6 @@ static void audit_log_exit(struct audit_context *context, struct task_struct *ts
 
 		switch (aux->type) {
 
-		case AUDIT_EXECVE: {
-			struct audit_aux_data_execve *axi = (void *)aux;
-			audit_log_execve_info(context, &ab, axi);
-			break; }
-
 		case AUDIT_BPRM_FCAPS: {
 			struct audit_aux_data_bprm_fcaps *axs = (void *)aux;
 			audit_log_format(ab, "fver=%x", axs->fcap_ver);
@@ -2147,21 +2138,13 @@ void __audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid, umode_t mo
 	context->ipc.has_perm = 1;
 }
 
-int __audit_bprm(struct linux_binprm *bprm)
+void __audit_bprm(struct linux_binprm *bprm)
 {
-	struct audit_aux_data_execve *ax;
 	struct audit_context *context = current->audit_context;
 
-	ax = kmalloc(sizeof(*ax), GFP_KERNEL);
-	if (!ax)
-		return -ENOMEM;
-
-	ax->argc = bprm->argc;
-	ax->mm = bprm->mm;
-	ax->d.type = AUDIT_EXECVE;
-	ax->d.next = context->aux;
-	context->aux = (void *)ax;
-	return 0;
+	context->type = AUDIT_EXECVE;
+	context->execve.argc = bprm->argc;
+	context->execve.mm = bprm->mm;
 }
 
 
-- 
cgit 


From 9410d228a4cf434305306746bb799fb7acdd8648 Mon Sep 17 00:00:00 2001
From: Richard Guy Briggs <rgb@redhat.com>
Date: Wed, 30 Oct 2013 18:05:24 -0400
Subject: audit: call audit_bprm() only once to add AUDIT_EXECVE information

Move the audit_bprm() call from search_binary_handler() to exec_binprm().  This
allows us to get rid of the mm member of struct audit_aux_data_execve since
bprm->mm will equal current->mm.

This also mitigates the issue that ->argc could be modified by the
load_binary() call in search_binary_handler().

audit_bprm() was being called to add an AUDIT_EXECVE record to the audit
context every time search_binary_handler() was recursively called.  Only one
reference is necessary.

Reported-by: Oleg Nesterov <onestero@redhat.com>
Cc: Eric Paris <eparis@redhat.com>
Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
This patch is against 3.11, but was developed on Oleg's post-3.11 patches that
introduce exec_binprm().
---
 fs/exec.c             | 5 +----
 include/linux/audit.h | 9 +++------
 kernel/audit.h        | 1 -
 kernel/auditsc.c      | 4 ----
 4 files changed, 4 insertions(+), 15 deletions(-)

diff --git a/fs/exec.c b/fs/exec.c
index fd774c7cb483..c5c24f2fc44a 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1383,10 +1383,6 @@ int search_binary_handler(struct linux_binprm *bprm)
 	if (retval)
 		return retval;
 
-	retval = audit_bprm(bprm);
-	if (retval)
-		return retval;
-
 	/* Need to fetch pid before load_binary changes it */
 	old_pid = current->pid;
 	rcu_read_lock();
@@ -1408,6 +1404,7 @@ int search_binary_handler(struct linux_binprm *bprm)
 			bprm->recursion_depth = depth;
 			if (retval >= 0) {
 				if (depth == 0) {
+					audit_bprm(bprm);
 					trace_sched_process_exec(current, old_pid, bprm);
 					ptrace_event(PTRACE_EVENT_EXEC, old_vpid);
 				}
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 08b38bf13eb9..a40641954c29 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -238,11 +238,10 @@ static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid, gid_t gid
 	if (unlikely(!audit_dummy_context()))
 		__audit_ipc_set_perm(qbytes, uid, gid, mode);
 }
-static inline int audit_bprm(struct linux_binprm *bprm)
+static inline void audit_bprm(struct linux_binprm *bprm)
 {
 	if (unlikely(!audit_dummy_context()))
 		__audit_bprm(bprm);
-	return 0;
 }
 static inline int audit_socketcall(int nargs, unsigned long *args)
 {
@@ -369,10 +368,8 @@ static inline void audit_ipc_obj(struct kern_ipc_perm *ipcp)
 static inline void audit_ipc_set_perm(unsigned long qbytes, uid_t uid,
 					gid_t gid, umode_t mode)
 { }
-static inline int audit_bprm(struct linux_binprm *bprm)
-{
-	return 0;
-}
+static inline void audit_bprm(struct linux_binprm *bprm)
+{ }
 static inline int audit_socketcall(int nargs, unsigned long *args)
 {
 	return 0;
diff --git a/kernel/audit.h b/kernel/audit.h
index e7b94ab66c49..b779642b29af 100644
--- a/kernel/audit.h
+++ b/kernel/audit.h
@@ -199,7 +199,6 @@ struct audit_context {
 		} mmap;
 		struct {
 			int			argc;
-			struct mm_struct	*mm;
 		} execve;
 	};
 	int fds[2];
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 425a8939be1a..dfc5d6745ee5 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1145,9 +1145,6 @@ static void audit_log_execve_info(struct audit_context *context,
 	const char __user *p;
 	char *buf;
 
-	if (context->execve.mm != current->mm)
-		return; /* execve failed, no additional info */
-
 	p = (const char __user *)current->mm->arg_start;
 
 	audit_log_format(*ab, "argc=%d", context->execve.argc);
@@ -2144,7 +2141,6 @@ void __audit_bprm(struct linux_binprm *bprm)
 
 	context->type = AUDIT_EXECVE;
 	context->execve.argc = bprm->argc;
-	context->execve.mm = bprm->mm;
 }
 
 
-- 
cgit 


From b63349a7a53d34ffde70cb4feec48ea9e6f5e97b Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Tue, 1 Oct 2013 11:49:56 +0200
Subject: dm mpath: requeue I/O during pg_init

When pg_init is running no I/O can be submitted to the underlying
devices, as the path priority etc might change.  When using queue_io for
this, requests will be piling up within multipath as the block I/O
scheduler just sees a _very fast_ device.  All of this queued I/O has to
be resubmitted from within multipathing once pg_init is done.

This approach has the problem that it's virtually impossible to
abort I/O when pg_init is running, and we're adding heavy load
to the devices after pg_init since all of the queued I/O needs to be
resubmitted _before_ any requests can be pulled off of the request queue
and normal operation continues.

This patch will requeue the I/O that triggers the pg_init call, and
return 'busy' when pg_init is in progress.  With these changes the block
I/O scheduler will stop submitting I/O during pg_init, resulting in a
quicker path switch and less I/O pressure (and memory consumption) after
pg_init.

Signed-off-by: Hannes Reinecke <hare@suse.de>
[patch header edited for clarity and typos by Mike Snitzer]
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-mpath.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/md/dm-mpath.c b/drivers/md/dm-mpath.c
index 799e479db93b..6eb9dc9ef8f3 100644
--- a/drivers/md/dm-mpath.c
+++ b/drivers/md/dm-mpath.c
@@ -391,13 +391,16 @@ static int map_io(struct multipath *m, struct request *clone,
 	if (was_queued)
 		m->queue_size--;
 
-	if ((pgpath && m->queue_io) ||
-	    (!pgpath && m->queue_if_no_path)) {
+	if (m->pg_init_required) {
+		if (!m->pg_init_in_progress)
+			queue_work(kmultipathd, &m->process_queued_ios);
+		r = DM_MAPIO_REQUEUE;
+	} else if ((pgpath && m->queue_io) ||
+		   (!pgpath && m->queue_if_no_path)) {
 		/* Queue for the daemon to resubmit */
 		list_add_tail(&clone->queuelist, &m->queued_ios);
 		m->queue_size++;
-		if ((m->pg_init_required && !m->pg_init_in_progress) ||
-		    !m->queue_io)
+		if (!m->queue_io)
 			queue_work(kmultipathd, &m->process_queued_ios);
 		pgpath = NULL;
 		r = DM_MAPIO_SUBMITTED;
@@ -1677,6 +1680,11 @@ static int multipath_busy(struct dm_target *ti)
 
 	spin_lock_irqsave(&m->lock, flags);
 
+	/* pg_init in progress, requeue until done */
+	if (m->pg_init_in_progress) {
+		busy = 1;
+		goto out;
+	}
 	/* Guess which priority_group will be used at next mapping time */
 	if (unlikely(!m->current_pgpath && m->next_pg))
 		pg = m->next_pg;
-- 
cgit 


From 9c1d4de56066e4d6abc66ec188faafd7b303fb08 Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Wed, 30 Oct 2013 11:19:59 +0000
Subject: dm array: fix bug in growing array

Entries would be lost if the old tail block was partially filled.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org # 3.9+
---
 drivers/md/persistent-data/dm-array.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/md/persistent-data/dm-array.c b/drivers/md/persistent-data/dm-array.c
index 172147eb1d40..af96e24ec328 100644
--- a/drivers/md/persistent-data/dm-array.c
+++ b/drivers/md/persistent-data/dm-array.c
@@ -509,15 +509,18 @@ static int grow_add_tail_block(struct resize *resize)
 static int grow_needs_more_blocks(struct resize *resize)
 {
 	int r;
+	unsigned old_nr_blocks = resize->old_nr_full_blocks;
 
 	if (resize->old_nr_entries_in_last_block > 0) {
+		old_nr_blocks++;
+
 		r = grow_extend_tail_block(resize, resize->max_entries);
 		if (r)
 			return r;
 	}
 
 	r = insert_full_ablocks(resize->info, resize->size_of_block,
-				resize->old_nr_full_blocks,
+				old_nr_blocks,
 				resize->new_nr_full_blocks,
 				resize->max_entries, resize->value,
 				&resize->root);
-- 
cgit 


From 33499a15c2f7addc81695778753c2338b960eff7 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 17:34:46 +0100
Subject: ALSA: hda - Force buffer alignment for Haswell HDMI controllers

Haswell HDMI audio controllers seem to get stuck when unaligned buffer
size is used.  Let's enable the buffer alignment for the corresponding
entries.

Since AZX_DCAPS_INTEL_PCH contains AZX_DCAPS_BUFSIZE that disables the
buffer alignment forcibly, define AZX_DCAPS_INTEL_HASWELL and put the
necessary AZX_DCAPS bits there.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=60769
Reported-by: Alexander E. Patrakov <patrakov@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_intel.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index d6dcec768594..9cbd1259a5be 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -613,6 +613,11 @@ enum {
 #define AZX_DCAPS_INTEL_PCH \
 	(AZX_DCAPS_INTEL_PCH_NOPM | AZX_DCAPS_PM_RUNTIME)
 
+#define AZX_DCAPS_INTEL_HASWELL \
+	(AZX_DCAPS_SCH_SNOOP | AZX_DCAPS_ALIGN_BUFSIZE | \
+	 AZX_DCAPS_COUNT_LPIB_DELAY | AZX_DCAPS_PM_RUNTIME | \
+	 AZX_DCAPS_I915_POWERWELL)
+
 /* quirks for ATI SB / AMD Hudson */
 #define AZX_DCAPS_PRESET_ATI_SB \
 	(AZX_DCAPS_ATI_SNOOP | AZX_DCAPS_NO_TCSEL | \
@@ -3992,14 +3997,11 @@ static DEFINE_PCI_DEVICE_TABLE(azx_ids) = {
 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
 	/* Haswell */
 	{ PCI_DEVICE(0x8086, 0x0a0c),
-	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH |
-	  AZX_DCAPS_I915_POWERWELL },
+	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_HASWELL },
 	{ PCI_DEVICE(0x8086, 0x0c0c),
-	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH |
-	  AZX_DCAPS_I915_POWERWELL },
+	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_HASWELL },
 	{ PCI_DEVICE(0x8086, 0x0d0c),
-	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH |
-	  AZX_DCAPS_I915_POWERWELL },
+	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_HASWELL },
 	/* 5 Series/3400 */
 	{ PCI_DEVICE(0x8086, 0x3b56),
 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
-- 
cgit 


From fab1285a51b7bf55adb4678d82e606829c9dab85 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 17:54:05 +0100
Subject: ALSA: hda - Name Haswell HDMI controllers better

"HDA Intel MID" is no correct name for Haswell HDMI controllers.
Give them a better name, "HDA Intel HDMI".

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_intel.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 9cbd1259a5be..17f4aa8cddd5 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -569,6 +569,7 @@ enum {
 	AZX_DRIVER_ICH,
 	AZX_DRIVER_PCH,
 	AZX_DRIVER_SCH,
+	AZX_DRIVER_HDMI,
 	AZX_DRIVER_ATI,
 	AZX_DRIVER_ATIHDMI,
 	AZX_DRIVER_ATIHDMI_NS,
@@ -648,6 +649,7 @@ static char *driver_short_names[] = {
 	[AZX_DRIVER_ICH] = "HDA Intel",
 	[AZX_DRIVER_PCH] = "HDA Intel PCH",
 	[AZX_DRIVER_SCH] = "HDA Intel MID",
+	[AZX_DRIVER_HDMI] = "HDA Intel HDMI",
 	[AZX_DRIVER_ATI] = "HDA ATI SB",
 	[AZX_DRIVER_ATIHDMI] = "HDA ATI HDMI",
 	[AZX_DRIVER_ATIHDMI_NS] = "HDA ATI HDMI",
@@ -3997,11 +3999,11 @@ static DEFINE_PCI_DEVICE_TABLE(azx_ids) = {
 	  .driver_data = AZX_DRIVER_PCH | AZX_DCAPS_INTEL_PCH },
 	/* Haswell */
 	{ PCI_DEVICE(0x8086, 0x0a0c),
-	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_HASWELL },
+	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
 	{ PCI_DEVICE(0x8086, 0x0c0c),
-	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_HASWELL },
+	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
 	{ PCI_DEVICE(0x8086, 0x0d0c),
-	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_HASWELL },
+	  .driver_data = AZX_DRIVER_HDMI | AZX_DCAPS_INTEL_HASWELL },
 	/* 5 Series/3400 */
 	{ PCI_DEVICE(0x8086, 0x3b56),
 	  .driver_data = AZX_DRIVER_SCH | AZX_DCAPS_INTEL_PCH_NOPM },
-- 
cgit 


From 847264fb7e73ade5b5e4b6eea3daa243a1f5217e Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Wed, 23 Oct 2013 16:50:07 +0100
Subject: arm64: Use 42-bit address space with 64K pages

This patch expands the VA_BITS to 42 when the 64K page configuration is
enabled allowing 2TB kernel linear mapping. Linux still uses 2 levels of
page tables in this configuration with pgd now being a full page.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
---
 Documentation/arm64/memory.txt                | 27 ++++++++++++++++++++++++++-
 arch/arm64/include/asm/memory.h               | 11 ++++++++---
 arch/arm64/include/asm/pgtable-2level-hwdef.h |  4 ++--
 arch/arm64/include/asm/pgtable.h              |  2 +-
 4 files changed, 37 insertions(+), 7 deletions(-)

diff --git a/Documentation/arm64/memory.txt b/Documentation/arm64/memory.txt
index f28899d5c83e..5e054bfe4dde 100644
--- a/Documentation/arm64/memory.txt
+++ b/Documentation/arm64/memory.txt
@@ -21,7 +21,7 @@ The swapper_pgd_dir address is written to TTBR1 and never written to
 TTBR0.
 
 
-AArch64 Linux memory layout:
+AArch64 Linux memory layout with 4KB pages:
 
 Start			End			Size		Use
 -----------------------------------------------------------------------
@@ -46,6 +46,31 @@ ffffffbffc000000	ffffffbfffffffff	  64MB		modules
 ffffffc000000000	ffffffffffffffff	 256GB		kernel logical memory map
 
 
+AArch64 Linux memory layout with 64KB pages:
+
+Start			End			Size		Use
+-----------------------------------------------------------------------
+0000000000000000	000003ffffffffff	   4TB		user
+
+fffffc0000000000	fffffdfbfffeffff	  ~2TB		vmalloc
+
+fffffdfbffff0000	fffffdfbffffffff	  64KB		[guard page]
+
+fffffdfc00000000	fffffdfdffffffff	   8GB		vmemmap
+
+fffffdfe00000000	fffffdfffbbfffff	  ~8GB		[guard, future vmmemap]
+
+fffffdfffbc00000	fffffdfffbdfffff	   2MB		earlyprintk device
+
+fffffdfffbe00000	fffffdfffbe0ffff	  64KB		PCI I/O space
+
+fffffdfffbe10000	fffffdfffbffffff	  ~2MB		[guard]
+
+fffffdfffc000000	fffffdffffffffff	  64MB		modules
+
+fffffe0000000000	ffffffffffffffff	   2TB		kernel logical memory map
+
+
 Translation table lookup with 4KB pages:
 
 +--------+--------+--------+--------+--------+--------+--------+--------+
diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h
index 20925bcf4e2a..37762175896f 100644
--- a/arch/arm64/include/asm/memory.h
+++ b/arch/arm64/include/asm/memory.h
@@ -33,18 +33,23 @@
 #define UL(x) _AC(x, UL)
 
 /*
- * PAGE_OFFSET - the virtual address of the start of the kernel image.
+ * PAGE_OFFSET - the virtual address of the start of the kernel image (top
+ *		 (VA_BITS - 1))
  * VA_BITS - the maximum number of bits for virtual addresses.
  * TASK_SIZE - the maximum size of a user space task.
  * TASK_UNMAPPED_BASE - the lower boundary of the mmap VM area.
  * The module space lives between the addresses given by TASK_SIZE
  * and PAGE_OFFSET - it must be within 128MB of the kernel text.
  */
-#define PAGE_OFFSET		UL(0xffffffc000000000)
+#ifdef CONFIG_ARM64_64K_PAGES
+#define VA_BITS			(42)
+#else
+#define VA_BITS			(39)
+#endif
+#define PAGE_OFFSET		(UL(0xffffffffffffffff) << (VA_BITS - 1))
 #define MODULES_END		(PAGE_OFFSET)
 #define MODULES_VADDR		(MODULES_END - SZ_64M)
 #define EARLYCON_IOBASE		(MODULES_VADDR - SZ_4M)
-#define VA_BITS			(39)
 #define TASK_SIZE_64		(UL(1) << VA_BITS)
 
 #ifdef CONFIG_COMPAT
diff --git a/arch/arm64/include/asm/pgtable-2level-hwdef.h b/arch/arm64/include/asm/pgtable-2level-hwdef.h
index 0a8ed3f94e93..2593b490c56a 100644
--- a/arch/arm64/include/asm/pgtable-2level-hwdef.h
+++ b/arch/arm64/include/asm/pgtable-2level-hwdef.h
@@ -21,10 +21,10 @@
  * 8192 entries of 8 bytes each, occupying a 64KB page. Levels 0 and 1 are not
  * used. The 2nd level table (PGD for Linux) can cover a range of 4TB, each
  * entry representing 512MB. The user and kernel address spaces are limited to
- * 512GB and therefore we only use 1024 entries in the PGD.
+ * 4TB in the 64KB page configuration.
  */
 #define PTRS_PER_PTE		8192
-#define PTRS_PER_PGD		1024
+#define PTRS_PER_PGD		8192
 
 /*
  * PGDIR_SHIFT determines the size a top-level page table entry can map.
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index f0bebc5e22cd..17bd3af0a117 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -33,7 +33,7 @@
 /*
  * VMALLOC and SPARSEMEM_VMEMMAP ranges.
  */
-#define VMALLOC_START		UL(0xffffff8000000000)
+#define VMALLOC_START		(UL(0xffffffffffffffff) << VA_BITS)
 #define VMALLOC_END		(PAGE_OFFSET - UL(0x400000000) - SZ_64K)
 
 #define vmemmap			((struct page *)(VMALLOC_END + SZ_64K))
-- 
cgit 


From 8e00ddc9dfe09ee131144fdaf6c96ebe95bbbbcb Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Wed, 30 Oct 2013 10:15:06 -0600
Subject: perf list: Remove a level of indentation

With a return after the if check an indentation level can be removed.
Indentation shift only; no functional changes.

Signed-off-by: David Ahern <dsahern@gmail.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1383149707-1008-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-list.c | 73 ++++++++++++++++++++++++-----------------------
 1 file changed, 37 insertions(+), 36 deletions(-)

diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c
index e79f423cc302..45000e7d4398 100644
--- a/tools/perf/builtin-list.c
+++ b/tools/perf/builtin-list.c
@@ -17,48 +17,49 @@
 
 int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
 {
+	int i;
+
 	setup_pager();
 
-	if (argc == 1)
+	if (argc == 1) {
 		print_events(NULL, false);
-	else {
-		int i;
-
-		for (i = 1; i < argc; ++i) {
-			if (i > 2)
-				putchar('\n');
-			if (strncmp(argv[i], "tracepoint", 10) == 0)
-				print_tracepoint_events(NULL, NULL, false);
-			else if (strcmp(argv[i], "hw") == 0 ||
-				 strcmp(argv[i], "hardware") == 0)
-				print_events_type(PERF_TYPE_HARDWARE);
-			else if (strcmp(argv[i], "sw") == 0 ||
-				 strcmp(argv[i], "software") == 0)
-				print_events_type(PERF_TYPE_SOFTWARE);
-			else if (strcmp(argv[i], "cache") == 0 ||
-				 strcmp(argv[i], "hwcache") == 0)
-				print_hwcache_events(NULL, false);
-			else if (strcmp(argv[i], "pmu") == 0)
-				print_pmu_events(NULL, false);
-			else if (strcmp(argv[i], "--raw-dump") == 0)
-				print_events(NULL, true);
-			else {
-				char *sep = strchr(argv[i], ':'), *s;
-				int sep_idx;
+		return 0;
+	}
 
-				if (sep == NULL) {
-					print_events(argv[i], false);
-					continue;
-				}
-				sep_idx = sep - argv[i];
-				s = strdup(argv[i]);
-				if (s == NULL)
-					return -1;
+	for (i = 1; i < argc; ++i) {
+		if (i > 2)
+			putchar('\n');
+		if (strncmp(argv[i], "tracepoint", 10) == 0)
+			print_tracepoint_events(NULL, NULL, false);
+		else if (strcmp(argv[i], "hw") == 0 ||
+			 strcmp(argv[i], "hardware") == 0)
+			print_events_type(PERF_TYPE_HARDWARE);
+		else if (strcmp(argv[i], "sw") == 0 ||
+			 strcmp(argv[i], "software") == 0)
+			print_events_type(PERF_TYPE_SOFTWARE);
+		else if (strcmp(argv[i], "cache") == 0 ||
+			 strcmp(argv[i], "hwcache") == 0)
+			print_hwcache_events(NULL, false);
+		else if (strcmp(argv[i], "pmu") == 0)
+			print_pmu_events(NULL, false);
+		else if (strcmp(argv[i], "--raw-dump") == 0)
+			print_events(NULL, true);
+		else {
+			char *sep = strchr(argv[i], ':'), *s;
+			int sep_idx;
 
-				s[sep_idx] = '\0';
-				print_tracepoint_events(s, s + sep_idx + 1, false);
-				free(s);
+			if (sep == NULL) {
+				print_events(argv[i], false);
+				continue;
 			}
+			sep_idx = sep - argv[i];
+			s = strdup(argv[i]);
+			if (s == NULL)
+				return -1;
+
+			s[sep_idx] = '\0';
+			print_tracepoint_events(s, s + sep_idx + 1, false);
+			free(s);
 		}
 	}
 	return 0;
-- 
cgit 


From 44d742e01e6d3dd544ee1873b660a3c8bc1413bb Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Wed, 30 Oct 2013 10:28:29 -0600
Subject: perf list: Add usage

Currently 'perf list' is not very helpful if you forget the syntax:

  $ perf list -h

  List of pre-defined events (to be used in -e):

After:
  $ perf list -h

   usage: perf list [hw|sw|cache|tracepoint|pmu|event_glob]

Signed-off-by: David Ahern <dsahern@gmail.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/527133AD.4030003@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-list.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/tools/perf/builtin-list.c b/tools/perf/builtin-list.c
index 45000e7d4398..011195e38f21 100644
--- a/tools/perf/builtin-list.c
+++ b/tools/perf/builtin-list.c
@@ -14,20 +14,31 @@
 #include "util/parse-events.h"
 #include "util/cache.h"
 #include "util/pmu.h"
+#include "util/parse-options.h"
 
 int cmd_list(int argc, const char **argv, const char *prefix __maybe_unused)
 {
 	int i;
+	const struct option list_options[] = {
+		OPT_END()
+	};
+	const char * const list_usage[] = {
+		"perf list [hw|sw|cache|tracepoint|pmu|event_glob]",
+		NULL
+	};
+
+	argc = parse_options(argc, argv, list_options, list_usage,
+			     PARSE_OPT_STOP_AT_NON_OPTION);
 
 	setup_pager();
 
-	if (argc == 1) {
+	if (argc == 0) {
 		print_events(NULL, false);
 		return 0;
 	}
 
-	for (i = 1; i < argc; ++i) {
-		if (i > 2)
+	for (i = 0; i < argc; ++i) {
+		if (i)
 			putchar('\n');
 		if (strncmp(argv[i], "tracepoint", 10) == 0)
 			print_tracepoint_events(NULL, NULL, false);
-- 
cgit 


From 4299a549979783668d787959d61ba22b6b200877 Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Tue, 5 Nov 2013 15:14:45 +0100
Subject: perf tools: Factor sysfs code into generic fs object

Moving sysfs code into generic fs object and preparing it to carry
procfs support.

This should be merged with tools/lib/lk/debugfs.c at some point in the
future.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1383660887-1734-2-git-send-email-jolsa@redhat.com
[ Added fs__ namespace qualifier to some more functions ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Makefile.perf           |   4 +-
 tools/perf/tests/parse-events.c    |   2 +-
 tools/perf/util/cpumap.c           |   2 +-
 tools/perf/util/fs.c               | 107 +++++++++++++++++++++++++++++++++++++
 tools/perf/util/fs.h               |   6 +++
 tools/perf/util/pmu.c              |   2 +-
 tools/perf/util/python-ext-sources |   2 +-
 tools/perf/util/sysfs.c            |  60 ---------------------
 tools/perf/util/sysfs.h            |   6 ---
 9 files changed, 119 insertions(+), 72 deletions(-)
 create mode 100644 tools/perf/util/fs.c
 create mode 100644 tools/perf/util/fs.h
 delete mode 100644 tools/perf/util/sysfs.c
 delete mode 100644 tools/perf/util/sysfs.h

diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 5b8639025aae..7fc8f179cae7 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -242,7 +242,7 @@ LIB_H += util/cache.h
 LIB_H += util/callchain.h
 LIB_H += util/build-id.h
 LIB_H += util/debug.h
-LIB_H += util/sysfs.h
+LIB_H += util/fs.h
 LIB_H += util/pmu.h
 LIB_H += util/event.h
 LIB_H += util/evsel.h
@@ -304,7 +304,7 @@ LIB_OBJS += $(OUTPUT)util/annotate.o
 LIB_OBJS += $(OUTPUT)util/build-id.o
 LIB_OBJS += $(OUTPUT)util/config.o
 LIB_OBJS += $(OUTPUT)util/ctype.o
-LIB_OBJS += $(OUTPUT)util/sysfs.o
+LIB_OBJS += $(OUTPUT)util/fs.o
 LIB_OBJS += $(OUTPUT)util/pmu.o
 LIB_OBJS += $(OUTPUT)util/environment.o
 LIB_OBJS += $(OUTPUT)util/event.o
diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index 48114d164e9f..f47bf459c3f5 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -2,7 +2,7 @@
 #include "parse-events.h"
 #include "evsel.h"
 #include "evlist.h"
-#include "sysfs.h"
+#include "fs.h"
 #include <lk/debugfs.h>
 #include "tests.h"
 #include <linux/hw_breakpoint.h>
diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
index beb8cf9f9976..4af5a23b2423 100644
--- a/tools/perf/util/cpumap.c
+++ b/tools/perf/util/cpumap.c
@@ -1,5 +1,5 @@
 #include "util.h"
-#include "sysfs.h"
+#include "fs.h"
 #include "../perf.h"
 #include "cpumap.h"
 #include <assert.h>
diff --git a/tools/perf/util/fs.c b/tools/perf/util/fs.c
new file mode 100644
index 000000000000..a2413e842a02
--- /dev/null
+++ b/tools/perf/util/fs.c
@@ -0,0 +1,107 @@
+
+/* TODO merge/factor into tools/lib/lk/debugfs.c */
+
+#include "util.h"
+#include "util/fs.h"
+
+static const char * const sysfs__fs_known_mountpoints[] = {
+	"/sys",
+	0,
+};
+
+struct fs {
+	const char		*name;
+	const char * const	*mounts;
+	char			 path[PATH_MAX + 1];
+	bool			 found;
+	long			 magic;
+};
+
+enum {
+	FS__SYSFS = 0,
+};
+
+static struct fs fs__entries[] = {
+	[FS__SYSFS] = {
+		.name	= "sysfs",
+		.mounts	= sysfs__fs_known_mountpoints,
+		.magic	= SYSFS_MAGIC,
+	},
+};
+
+static bool fs__read_mounts(struct fs *fs)
+{
+	bool found = false;
+	char type[100];
+	FILE *fp;
+
+	fp = fopen("/proc/mounts", "r");
+	if (fp == NULL)
+		return NULL;
+
+	while (!found &&
+	       fscanf(fp, "%*s %" STR(PATH_MAX) "s %99s %*s %*d %*d\n",
+		      fs->path, type) == 2) {
+
+		if (strcmp(type, fs->name) == 0)
+			found = true;
+	}
+
+	fclose(fp);
+	return fs->found = found;
+}
+
+static int fs__valid_mount(const char *fs, long magic)
+{
+	struct statfs st_fs;
+
+	if (statfs(fs, &st_fs) < 0)
+		return -ENOENT;
+	else if (st_fs.f_type != magic)
+		return -ENOENT;
+
+	return 0;
+}
+
+static bool fs__check_mounts(struct fs *fs)
+{
+	const char * const *ptr;
+
+	ptr = fs->mounts;
+	while (*ptr) {
+		if (fs__valid_mount(*ptr, fs->magic) == 0) {
+			fs->found = true;
+			strcpy(fs->path, *ptr);
+			return true;
+		}
+		ptr++;
+	}
+
+	return false;
+}
+
+static const char *fs__get_mountpoint(struct fs *fs)
+{
+	if (fs__check_mounts(fs))
+		return fs->path;
+
+	return fs__read_mounts(fs) ? fs->path : NULL;
+}
+
+static const char *fs__find_mountpoint(int idx)
+{
+	struct fs *fs = &fs__entries[idx];
+
+	if (fs->found)
+		return (const char *)fs->path;
+
+	return fs__get_mountpoint(fs);
+}
+
+#define FIND_MOUNTPOINT(name, idx)		\
+const char *name##_find_mountpoint(void)	\
+{						\
+	return fs__find_mountpoint(idx);	\
+}
+
+FIND_MOUNTPOINT(sysfs, FS__SYSFS);
diff --git a/tools/perf/util/fs.h b/tools/perf/util/fs.h
new file mode 100644
index 000000000000..082edbd2159b
--- /dev/null
+++ b/tools/perf/util/fs.h
@@ -0,0 +1,6 @@
+#ifndef __PERF_FS
+#define __PERF_FS
+
+const char *sysfs_find_mountpoint(void);
+
+#endif /* __PERF_FS */
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 64362fe45b71..45b42dffcd70 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -4,7 +4,7 @@
 #include <unistd.h>
 #include <stdio.h>
 #include <dirent.h>
-#include "sysfs.h"
+#include "fs.h"
 #include "util.h"
 #include "pmu.h"
 #include "parse-events.h"
diff --git a/tools/perf/util/python-ext-sources b/tools/perf/util/python-ext-sources
index f75ae1b9900c..239036fb2b2c 100644
--- a/tools/perf/util/python-ext-sources
+++ b/tools/perf/util/python-ext-sources
@@ -17,5 +17,5 @@ util/xyarray.c
 util/cgroup.c
 util/rblist.c
 util/strlist.c
-util/sysfs.c
+util/fs.c
 ../../lib/rbtree.c
diff --git a/tools/perf/util/sysfs.c b/tools/perf/util/sysfs.c
deleted file mode 100644
index f71e9eafe15a..000000000000
--- a/tools/perf/util/sysfs.c
+++ /dev/null
@@ -1,60 +0,0 @@
-
-#include "util.h"
-#include "sysfs.h"
-
-static const char * const sysfs_known_mountpoints[] = {
-	"/sys",
-	0,
-};
-
-static int sysfs_found;
-char sysfs_mountpoint[PATH_MAX + 1];
-
-static int sysfs_valid_mountpoint(const char *sysfs)
-{
-	struct statfs st_fs;
-
-	if (statfs(sysfs, &st_fs) < 0)
-		return -ENOENT;
-	else if (st_fs.f_type != (long) SYSFS_MAGIC)
-		return -ENOENT;
-
-	return 0;
-}
-
-const char *sysfs_find_mountpoint(void)
-{
-	const char * const *ptr;
-	char type[100];
-	FILE *fp;
-
-	if (sysfs_found)
-		return (const char *) sysfs_mountpoint;
-
-	ptr = sysfs_known_mountpoints;
-	while (*ptr) {
-		if (sysfs_valid_mountpoint(*ptr) == 0) {
-			sysfs_found = 1;
-			strcpy(sysfs_mountpoint, *ptr);
-			return sysfs_mountpoint;
-		}
-		ptr++;
-	}
-
-	/* give up and parse /proc/mounts */
-	fp = fopen("/proc/mounts", "r");
-	if (fp == NULL)
-		return NULL;
-
-	while (!sysfs_found &&
-	       fscanf(fp, "%*s %" STR(PATH_MAX) "s %99s %*s %*d %*d\n",
-		      sysfs_mountpoint, type) == 2) {
-
-		if (strcmp(type, "sysfs") == 0)
-			sysfs_found = 1;
-	}
-
-	fclose(fp);
-
-	return sysfs_found ? sysfs_mountpoint : NULL;
-}
diff --git a/tools/perf/util/sysfs.h b/tools/perf/util/sysfs.h
deleted file mode 100644
index a813b7203938..000000000000
--- a/tools/perf/util/sysfs.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __SYSFS_H__
-#define __SYSFS_H__
-
-const char *sysfs_find_mountpoint(void);
-
-#endif /* __DEBUGFS_H__ */
-- 
cgit 


From aa62c2091129af81a172350b718eb35d5448cebc Mon Sep 17 00:00:00 2001
From: "T.J. Purtell" <tj@mobisocial.us>
Date: Tue, 5 Nov 2013 17:07:18 +0000
Subject: arm64: compat: Clear the IT state independent of the 32-bit ARM or
 Thumb-2 mode

The ARM architecture reference specifies that the IT state bits in the
PSR must be all zeros in ARM mode or behavior is unspecified. If an ARM
function is registered as a signal handler, and that signal is delivered
inside a block of instructions following an IT instruction, some of the
instructions at the beginning of the signal handler may be skipped if
the IT state bits of the Program Status Register are not cleared by the
kernel.

Signed-off-by: T.J. Purtell <tj@mobisocial.us>
[catalin.marinas@arm.com: code comment and commit log updated]
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kernel/signal32.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c
index e8772c07cf5c..e51bbe79f5b5 100644
--- a/arch/arm64/kernel/signal32.c
+++ b/arch/arm64/kernel/signal32.c
@@ -446,12 +446,13 @@ static void compat_setup_return(struct pt_regs *regs, struct k_sigaction *ka,
 	/* Check if the handler is written for ARM or Thumb */
 	thumb = handler & 1;
 
-	if (thumb) {
+	if (thumb)
 		spsr |= COMPAT_PSR_T_BIT;
-		spsr &= ~COMPAT_PSR_IT_MASK;
-	} else {
+	else
 		spsr &= ~COMPAT_PSR_T_BIT;
-	}
+
+	/* The IT state must be cleared for both ARM and Thumb-2 */
+	spsr &= ~COMPAT_PSR_IT_MASK;
 
 	if (ka->sa.sa_flags & SA_RESTORER) {
 		retcode = ptr_to_compat(ka->sa.sa_restorer);
-- 
cgit 


From cf38fadade52df937521dd70d4437df1a9354cd9 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue, 5 Nov 2013 14:48:50 -0300
Subject: perf fs: Rename NAME_find_mountpoint() to NAME__mountpoint()

Shorten it, "finding" it is an implementation detail, what callers want
is the pathname, not to ask for it to _always_ do the lookup.

And the existing implementation already caches it, i.e. it doesn't
"finds" it on every call.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-r24wa4bvtccg7mnkessrbbdj@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/tests/parse-events.c |  4 ++--
 tools/perf/util/cpumap.c        |  4 ++--
 tools/perf/util/fs.c            | 12 ++++++------
 tools/perf/util/fs.h            |  2 +-
 tools/perf/util/pmu.c           | 15 +++++----------
 5 files changed, 16 insertions(+), 21 deletions(-)

diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index f47bf459c3f5..ef671cd41bb3 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -1456,7 +1456,7 @@ static int test_pmu(void)
 	int ret;
 
 	snprintf(path, PATH_MAX, "%s/bus/event_source/devices/cpu/format/",
-		 sysfs_find_mountpoint());
+		 sysfs__mountpoint());
 
 	ret = stat(path, &st);
 	if (ret)
@@ -1473,7 +1473,7 @@ static int test_pmu_events(void)
 	int ret;
 
 	snprintf(path, PATH_MAX, "%s/bus/event_source/devices/cpu/events/",
-		 sysfs_find_mountpoint());
+		 sysfs__mountpoint());
 
 	ret = stat(path, &st);
 	if (ret) {
diff --git a/tools/perf/util/cpumap.c b/tools/perf/util/cpumap.c
index 4af5a23b2423..a9b48c42e81e 100644
--- a/tools/perf/util/cpumap.c
+++ b/tools/perf/util/cpumap.c
@@ -216,7 +216,7 @@ int cpu_map__get_socket(struct cpu_map *map, int idx)
 
 	cpu = map->map[idx];
 
-	mnt = sysfs_find_mountpoint();
+	mnt = sysfs__mountpoint();
 	if (!mnt)
 		return -1;
 
@@ -279,7 +279,7 @@ int cpu_map__get_core(struct cpu_map *map, int idx)
 
 	cpu = map->map[idx];
 
-	mnt = sysfs_find_mountpoint();
+	mnt = sysfs__mountpoint();
 	if (!mnt)
 		return -1;
 
diff --git a/tools/perf/util/fs.c b/tools/perf/util/fs.c
index a2413e842a02..77bac4e4c115 100644
--- a/tools/perf/util/fs.c
+++ b/tools/perf/util/fs.c
@@ -88,7 +88,7 @@ static const char *fs__get_mountpoint(struct fs *fs)
 	return fs__read_mounts(fs) ? fs->path : NULL;
 }
 
-static const char *fs__find_mountpoint(int idx)
+static const char *fs__mountpoint(int idx)
 {
 	struct fs *fs = &fs__entries[idx];
 
@@ -98,10 +98,10 @@ static const char *fs__find_mountpoint(int idx)
 	return fs__get_mountpoint(fs);
 }
 
-#define FIND_MOUNTPOINT(name, idx)		\
-const char *name##_find_mountpoint(void)	\
-{						\
-	return fs__find_mountpoint(idx);	\
+#define FS__MOUNTPOINT(name, idx)	\
+const char *name##__mountpoint(void)	\
+{					\
+	return fs__mountpoint(idx);	\
 }
 
-FIND_MOUNTPOINT(sysfs, FS__SYSFS);
+FS__MOUNTPOINT(sysfs, FS__SYSFS);
diff --git a/tools/perf/util/fs.h b/tools/perf/util/fs.h
index 082edbd2159b..a7561c83c33c 100644
--- a/tools/perf/util/fs.h
+++ b/tools/perf/util/fs.h
@@ -1,6 +1,6 @@
 #ifndef __PERF_FS
 #define __PERF_FS
 
-const char *sysfs_find_mountpoint(void);
+const char *sysfs__mountpoint(void);
 
 #endif /* __PERF_FS */
diff --git a/tools/perf/util/pmu.c b/tools/perf/util/pmu.c
index 45b42dffcd70..c232d8dd410b 100644
--- a/tools/perf/util/pmu.c
+++ b/tools/perf/util/pmu.c
@@ -77,9 +77,8 @@ static int pmu_format(const char *name, struct list_head *format)
 {
 	struct stat st;
 	char path[PATH_MAX];
-	const char *sysfs;
+	const char *sysfs = sysfs__mountpoint();
 
-	sysfs = sysfs_find_mountpoint();
 	if (!sysfs)
 		return -1;
 
@@ -166,9 +165,8 @@ static int pmu_aliases(const char *name, struct list_head *head)
 {
 	struct stat st;
 	char path[PATH_MAX];
-	const char *sysfs;
+	const char *sysfs = sysfs__mountpoint();
 
-	sysfs = sysfs_find_mountpoint();
 	if (!sysfs)
 		return -1;
 
@@ -212,11 +210,10 @@ static int pmu_type(const char *name, __u32 *type)
 {
 	struct stat st;
 	char path[PATH_MAX];
-	const char *sysfs;
 	FILE *file;
 	int ret = 0;
+	const char *sysfs = sysfs__mountpoint();
 
-	sysfs = sysfs_find_mountpoint();
 	if (!sysfs)
 		return -1;
 
@@ -241,11 +238,10 @@ static int pmu_type(const char *name, __u32 *type)
 static void pmu_read_sysfs(void)
 {
 	char path[PATH_MAX];
-	const char *sysfs;
 	DIR *dir;
 	struct dirent *dent;
+	const char *sysfs = sysfs__mountpoint();
 
-	sysfs = sysfs_find_mountpoint();
 	if (!sysfs)
 		return;
 
@@ -270,11 +266,10 @@ static struct cpu_map *pmu_cpumask(const char *name)
 {
 	struct stat st;
 	char path[PATH_MAX];
-	const char *sysfs;
 	FILE *file;
 	struct cpu_map *cpus;
+	const char *sysfs = sysfs__mountpoint();
 
-	sysfs = sysfs_find_mountpoint();
 	if (!sysfs)
 		return NULL;
 
-- 
cgit 


From a9862418547e818aa5842840aecfa81d733b97e9 Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Tue, 5 Nov 2013 15:14:46 +0100
Subject: perf fs: Add procfs support

Adding procfs support into fs class.

The interface function:
  const char *procfs__mountpoint(void);

provides existing mountpoint path for procfs.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1383660887-1734-3-git-send-email-jolsa@redhat.com
[ Fixup namespace ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/fs.c                  | 16 ++++++++++++++--
 tools/perf/util/fs.h                  |  1 +
 tools/perf/util/include/linux/magic.h |  4 ++++
 3 files changed, 19 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/fs.c b/tools/perf/util/fs.c
index 77bac4e4c115..f5be1f26e724 100644
--- a/tools/perf/util/fs.c
+++ b/tools/perf/util/fs.c
@@ -9,6 +9,11 @@ static const char * const sysfs__fs_known_mountpoints[] = {
 	0,
 };
 
+static const char * const procfs__known_mountpoints[] = {
+	"/proc",
+	0,
+};
+
 struct fs {
 	const char		*name;
 	const char * const	*mounts;
@@ -18,7 +23,8 @@ struct fs {
 };
 
 enum {
-	FS__SYSFS = 0,
+	FS__SYSFS  = 0,
+	FS__PROCFS = 1,
 };
 
 static struct fs fs__entries[] = {
@@ -27,6 +33,11 @@ static struct fs fs__entries[] = {
 		.mounts	= sysfs__fs_known_mountpoints,
 		.magic	= SYSFS_MAGIC,
 	},
+	[FS__PROCFS] = {
+		.name	= "proc",
+		.mounts	= procfs__known_mountpoints,
+		.magic	= PROC_SUPER_MAGIC,
+	},
 };
 
 static bool fs__read_mounts(struct fs *fs)
@@ -104,4 +115,5 @@ const char *name##__mountpoint(void)	\
 	return fs__mountpoint(idx);	\
 }
 
-FS__MOUNTPOINT(sysfs, FS__SYSFS);
+FS__MOUNTPOINT(sysfs,  FS__SYSFS);
+FS__MOUNTPOINT(procfs, FS__PROCFS);
diff --git a/tools/perf/util/fs.h b/tools/perf/util/fs.h
index a7561c83c33c..5e09ce1bab0e 100644
--- a/tools/perf/util/fs.h
+++ b/tools/perf/util/fs.h
@@ -2,5 +2,6 @@
 #define __PERF_FS
 
 const char *sysfs__mountpoint(void);
+const char *procfs__mountpoint(void);
 
 #endif /* __PERF_FS */
diff --git a/tools/perf/util/include/linux/magic.h b/tools/perf/util/include/linux/magic.h
index 58b64ed4da12..07d63cf3e0f6 100644
--- a/tools/perf/util/include/linux/magic.h
+++ b/tools/perf/util/include/linux/magic.h
@@ -9,4 +9,8 @@
 #define SYSFS_MAGIC            0x62656572
 #endif
 
+#ifndef PROC_SUPER_MAGIC
+#define PROC_SUPER_MAGIC       0x9fa0
+#endif
+
 #endif
-- 
cgit 


From 714647bdc516330e4405b39677d7f763e016c685 Mon Sep 17 00:00:00 2001
From: Jiri Olsa <jolsa@redhat.com>
Date: Tue, 5 Nov 2013 15:14:47 +0100
Subject: perf tools: Check maximum frequency rate for record/top

Adding the check for maximum allowed frequency rate defined in following
file:

  /proc/sys/kernel/perf_event_max_sample_rate

When we cross the maximum value we fail and display detailed error
message with advise.

  $ perf record -F 3000 ls
  Maximum frequency rate (2000) reached.
  Please use -F freq option with lower value or consider
  tweaking /proc/sys/kernel/perf_event_max_sample_rate.

In case user does not specify the frequency and the default value cross
the maximum, we display warning and set the frequency value to the
current maximum.

  $ perf record ls
  Lowering default frequency rate to 2000.
  Please consider tweaking /proc/sys/kernel/perf_event_max_sample_rate.

Same messages are used for 'perf top'.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1383660887-1734-4-git-send-email-jolsa@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-record.c | 15 +---------
 tools/perf/builtin-top.c    | 15 +---------
 tools/perf/util/evlist.h    |  1 +
 tools/perf/util/record.c    | 71 +++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 74 insertions(+), 28 deletions(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 8b45fcead5f6..ea4c04f7437e 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -958,20 +958,7 @@ int cmd_record(int argc, const char **argv, const char *prefix __maybe_unused)
 	if (perf_evlist__create_maps(evsel_list, &rec->opts.target) < 0)
 		usage_with_options(record_usage, record_options);
 
-	if (rec->opts.user_interval != ULLONG_MAX)
-		rec->opts.default_interval = rec->opts.user_interval;
-	if (rec->opts.user_freq != UINT_MAX)
-		rec->opts.freq = rec->opts.user_freq;
-
-	/*
-	 * User specified count overrides default frequency.
-	 */
-	if (rec->opts.default_interval)
-		rec->opts.freq = 0;
-	else if (rec->opts.freq) {
-		rec->opts.default_interval = rec->opts.freq;
-	} else {
-		ui__error("frequency and count are zero, aborting\n");
+	if (perf_record_opts__config(&rec->opts)) {
 		err = -EINVAL;
 		goto out_free_fd;
 	}
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 21897f0ffcd3..9acca8856ccb 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1209,20 +1209,7 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
 	if (top.delay_secs < 1)
 		top.delay_secs = 1;
 
-	if (opts->user_interval != ULLONG_MAX)
-		opts->default_interval = opts->user_interval;
-	if (opts->user_freq != UINT_MAX)
-		opts->freq = opts->user_freq;
-
-	/*
-	 * User specified count overrides default frequency.
-	 */
-	if (opts->default_interval)
-		opts->freq = 0;
-	else if (opts->freq) {
-		opts->default_interval = opts->freq;
-	} else {
-		ui__error("frequency and count are zero, aborting\n");
+	if (perf_record_opts__config(opts)) {
 		status = -EINVAL;
 		goto out_delete_maps;
 	}
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 6e8acc9abe38..0617ce2a0679 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -99,6 +99,7 @@ void perf_evlist__set_id_pos(struct perf_evlist *evlist);
 bool perf_can_sample_identifier(void);
 void perf_evlist__config(struct perf_evlist *evlist,
 			 struct perf_record_opts *opts);
+int perf_record_opts__config(struct perf_record_opts *opts);
 
 int perf_evlist__prepare_workload(struct perf_evlist *evlist,
 				  struct perf_target *target,
diff --git a/tools/perf/util/record.c b/tools/perf/util/record.c
index 18d73aa2f0f8..c8845b107f60 100644
--- a/tools/perf/util/record.c
+++ b/tools/perf/util/record.c
@@ -2,6 +2,8 @@
 #include "evsel.h"
 #include "cpumap.h"
 #include "parse-events.h"
+#include "fs.h"
+#include "util.h"
 
 typedef void (*setup_probe_fn_t)(struct perf_evsel *evsel);
 
@@ -106,3 +108,72 @@ void perf_evlist__config(struct perf_evlist *evlist,
 
 	perf_evlist__set_id_pos(evlist);
 }
+
+static int get_max_rate(unsigned int *rate)
+{
+	char path[PATH_MAX];
+	const char *procfs = procfs__mountpoint();
+
+	if (!procfs)
+		return -1;
+
+	snprintf(path, PATH_MAX,
+		 "%s/sys/kernel/perf_event_max_sample_rate", procfs);
+
+	return filename__read_int(path, (int *) rate);
+}
+
+static int perf_record_opts__config_freq(struct perf_record_opts *opts)
+{
+	bool user_freq = opts->user_freq != UINT_MAX;
+	unsigned int max_rate;
+
+	if (opts->user_interval != ULLONG_MAX)
+		opts->default_interval = opts->user_interval;
+	if (user_freq)
+		opts->freq = opts->user_freq;
+
+	/*
+	 * User specified count overrides default frequency.
+	 */
+	if (opts->default_interval)
+		opts->freq = 0;
+	else if (opts->freq) {
+		opts->default_interval = opts->freq;
+	} else {
+		pr_err("frequency and count are zero, aborting\n");
+		return -1;
+	}
+
+	if (get_max_rate(&max_rate))
+		return 0;
+
+	/*
+	 * User specified frequency is over current maximum.
+	 */
+	if (user_freq && (max_rate < opts->freq)) {
+		pr_err("Maximum frequency rate (%u) reached.\n"
+		   "Please use -F freq option with lower value or consider\n"
+		   "tweaking /proc/sys/kernel/perf_event_max_sample_rate.\n",
+		   max_rate);
+		return -1;
+	}
+
+	/*
+	 * Default frequency is over current maximum.
+	 */
+	if (max_rate < opts->freq) {
+		pr_warning("Lowering default frequency rate to %u.\n"
+			   "Please consider tweaking "
+			   "/proc/sys/kernel/perf_event_max_sample_rate.\n",
+			   max_rate);
+		opts->freq = max_rate;
+	}
+
+	return 0;
+}
+
+int perf_record_opts__config(struct perf_record_opts *opts)
+{
+	return perf_record_opts__config_freq(opts);
+}
-- 
cgit 


From 316c7136f8bad924609163b9b115f68d59a68c82 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue, 5 Nov 2013 15:32:36 -0300
Subject: perf tools: Finish the removal of 'self' arguments

They convey no information, perhaps I was bitten by some snake at some
point, complete the detox by naming the last of those arguments more
sensibly.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-u1r0dnjoro08dgztiy2g3t2q@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 .../perf/scripts/python/Perf-Trace-Util/Context.c  |   6 +-
 tools/perf/ui/browser.h                            |  32 +++---
 tools/perf/ui/browsers/hists.c                     |   2 +-
 tools/perf/ui/browsers/map.c                       |  40 +++----
 tools/perf/ui/browsers/map.h                       |   2 +-
 tools/perf/ui/browsers/scripts.c                   |   8 +-
 tools/perf/ui/stdio/hist.c                         |  14 +--
 tools/perf/util/build-id.h                         |   3 +-
 tools/perf/util/event.c                            |   6 +-
 tools/perf/util/event.h                            |   3 +-
 tools/perf/util/evlist.h                           |   2 +-
 tools/perf/util/hist.h                             |  33 +++---
 tools/perf/util/probe-finder.c                     | 113 +++++++++----------
 tools/perf/util/probe-finder.h                     |  10 +-
 tools/perf/util/pstack.h                           |  10 +-
 tools/perf/util/session.c                          | 121 ++++++++++-----------
 tools/perf/util/session.h                          |  27 ++---
 tools/perf/util/sort.h                             |   2 +-
 tools/perf/util/strfilter.c                        |  32 +++---
 tools/perf/util/strfilter.h                        |  12 +-
 tools/perf/util/thread.h                           |  10 +-
 21 files changed, 242 insertions(+), 246 deletions(-)

diff --git a/tools/perf/scripts/python/Perf-Trace-Util/Context.c b/tools/perf/scripts/python/Perf-Trace-Util/Context.c
index 315067b8f552..fcd1dd667906 100644
--- a/tools/perf/scripts/python/Perf-Trace-Util/Context.c
+++ b/tools/perf/scripts/python/Perf-Trace-Util/Context.c
@@ -25,7 +25,7 @@
 
 PyMODINIT_FUNC initperf_trace_context(void);
 
-static PyObject *perf_trace_context_common_pc(PyObject *self, PyObject *args)
+static PyObject *perf_trace_context_common_pc(PyObject *obj, PyObject *args)
 {
 	static struct scripting_context *scripting_context;
 	PyObject *context;
@@ -40,7 +40,7 @@ static PyObject *perf_trace_context_common_pc(PyObject *self, PyObject *args)
 	return Py_BuildValue("i", retval);
 }
 
-static PyObject *perf_trace_context_common_flags(PyObject *self,
+static PyObject *perf_trace_context_common_flags(PyObject *obj,
 						 PyObject *args)
 {
 	static struct scripting_context *scripting_context;
@@ -56,7 +56,7 @@ static PyObject *perf_trace_context_common_flags(PyObject *self,
 	return Py_BuildValue("i", retval);
 }
 
-static PyObject *perf_trace_context_common_lock_depth(PyObject *self,
+static PyObject *perf_trace_context_common_lock_depth(PyObject *obj,
 						      PyObject *args)
 {
 	static struct scripting_context *scripting_context;
diff --git a/tools/perf/ui/browser.h b/tools/perf/ui/browser.h
index 404ff66a3e36..7d45d2f53601 100644
--- a/tools/perf/ui/browser.h
+++ b/tools/perf/ui/browser.h
@@ -21,32 +21,32 @@ struct ui_browser {
 	void	      *priv;
 	const char    *title;
 	char	      *helpline;
-	unsigned int  (*refresh)(struct ui_browser *self);
-	void	      (*write)(struct ui_browser *self, void *entry, int row);
-	void	      (*seek)(struct ui_browser *self, off_t offset, int whence);
-	bool	      (*filter)(struct ui_browser *self, void *entry);
+	unsigned int  (*refresh)(struct ui_browser *browser);
+	void	      (*write)(struct ui_browser *browser, void *entry, int row);
+	void	      (*seek)(struct ui_browser *browser, off_t offset, int whence);
+	bool	      (*filter)(struct ui_browser *browser, void *entry);
 	u32	      nr_entries;
 	bool	      navkeypressed;
 	bool	      use_navkeypressed;
 };
 
 int  ui_browser__set_color(struct ui_browser *browser, int color);
-void ui_browser__set_percent_color(struct ui_browser *self,
+void ui_browser__set_percent_color(struct ui_browser *browser,
 				   double percent, bool current);
-bool ui_browser__is_current_entry(struct ui_browser *self, unsigned row);
-void ui_browser__refresh_dimensions(struct ui_browser *self);
-void ui_browser__reset_index(struct ui_browser *self);
+bool ui_browser__is_current_entry(struct ui_browser *browser, unsigned row);
+void ui_browser__refresh_dimensions(struct ui_browser *browser);
+void ui_browser__reset_index(struct ui_browser *browser);
 
-void ui_browser__gotorc(struct ui_browser *self, int y, int x);
+void ui_browser__gotorc(struct ui_browser *browser, int y, int x);
 void ui_browser__write_graph(struct ui_browser *browser, int graph);
 void __ui_browser__line_arrow(struct ui_browser *browser, unsigned int column,
 			      u64 start, u64 end);
 void __ui_browser__show_title(struct ui_browser *browser, const char *title);
 void ui_browser__show_title(struct ui_browser *browser, const char *title);
-int ui_browser__show(struct ui_browser *self, const char *title,
+int ui_browser__show(struct ui_browser *browser, const char *title,
 		     const char *helpline, ...);
-void ui_browser__hide(struct ui_browser *self);
-int ui_browser__refresh(struct ui_browser *self);
+void ui_browser__hide(struct ui_browser *browser);
+int ui_browser__refresh(struct ui_browser *browser);
 int ui_browser__run(struct ui_browser *browser, int delay_secs);
 void ui_browser__update_nr_entries(struct ui_browser *browser, u32 nr_entries);
 void ui_browser__handle_resize(struct ui_browser *browser);
@@ -63,11 +63,11 @@ int ui_browser__input_window(const char *title, const char *text, char *input,
 void ui_browser__argv_seek(struct ui_browser *browser, off_t offset, int whence);
 unsigned int ui_browser__argv_refresh(struct ui_browser *browser);
 
-void ui_browser__rb_tree_seek(struct ui_browser *self, off_t offset, int whence);
-unsigned int ui_browser__rb_tree_refresh(struct ui_browser *self);
+void ui_browser__rb_tree_seek(struct ui_browser *browser, off_t offset, int whence);
+unsigned int ui_browser__rb_tree_refresh(struct ui_browser *browser);
 
-void ui_browser__list_head_seek(struct ui_browser *self, off_t offset, int whence);
-unsigned int ui_browser__list_head_refresh(struct ui_browser *self);
+void ui_browser__list_head_seek(struct ui_browser *browser, off_t offset, int whence);
+unsigned int ui_browser__list_head_refresh(struct ui_browser *browser);
 
 void ui_browser__init(void);
 void annotate_browser__init(void);
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index a91b6b219412..16848bb4c418 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1889,7 +1889,7 @@ out:
 	return key;
 }
 
-static bool filter_group_entries(struct ui_browser *self __maybe_unused,
+static bool filter_group_entries(struct ui_browser *browser __maybe_unused,
 				 void *entry)
 {
 	struct perf_evsel *evsel = list_entry(entry, struct perf_evsel, node);
diff --git a/tools/perf/ui/browsers/map.c b/tools/perf/ui/browsers/map.c
index 95c7cfb8f2c6..b11639f33682 100644
--- a/tools/perf/ui/browsers/map.c
+++ b/tools/perf/ui/browsers/map.c
@@ -18,30 +18,30 @@ struct map_browser {
 	u8		  addrlen;
 };
 
-static void map_browser__write(struct ui_browser *self, void *nd, int row)
+static void map_browser__write(struct ui_browser *browser, void *nd, int row)
 {
 	struct symbol *sym = rb_entry(nd, struct symbol, rb_node);
-	struct map_browser *mb = container_of(self, struct map_browser, b);
-	bool current_entry = ui_browser__is_current_entry(self, row);
+	struct map_browser *mb = container_of(browser, struct map_browser, b);
+	bool current_entry = ui_browser__is_current_entry(browser, row);
 	int width;
 
-	ui_browser__set_percent_color(self, 0, current_entry);
+	ui_browser__set_percent_color(browser, 0, current_entry);
 	slsmg_printf("%*" PRIx64 " %*" PRIx64 " %c ",
 		     mb->addrlen, sym->start, mb->addrlen, sym->end,
 		     sym->binding == STB_GLOBAL ? 'g' :
 		     sym->binding == STB_LOCAL  ? 'l' : 'w');
-	width = self->width - ((mb->addrlen * 2) + 4);
+	width = browser->width - ((mb->addrlen * 2) + 4);
 	if (width > 0)
 		slsmg_write_nstring(sym->name, width);
 }
 
 /* FIXME uber-kludgy, see comment on cmd_report... */
-static u32 *symbol__browser_index(struct symbol *self)
+static u32 *symbol__browser_index(struct symbol *browser)
 {
-	return ((void *)self) - sizeof(struct rb_node) - sizeof(u32);
+	return ((void *)browser) - sizeof(struct rb_node) - sizeof(u32);
 }
 
-static int map_browser__search(struct map_browser *self)
+static int map_browser__search(struct map_browser *browser)
 {
 	char target[512];
 	struct symbol *sym;
@@ -53,37 +53,37 @@ static int map_browser__search(struct map_browser *self)
 
 	if (target[0] == '0' && tolower(target[1]) == 'x') {
 		u64 addr = strtoull(target, NULL, 16);
-		sym = map__find_symbol(self->map, addr, NULL);
+		sym = map__find_symbol(browser->map, addr, NULL);
 	} else
-		sym = map__find_symbol_by_name(self->map, target, NULL);
+		sym = map__find_symbol_by_name(browser->map, target, NULL);
 
 	if (sym != NULL) {
 		u32 *idx = symbol__browser_index(sym);
 
-		self->b.top = &sym->rb_node;
-		self->b.index = self->b.top_idx = *idx;
+		browser->b.top = &sym->rb_node;
+		browser->b.index = browser->b.top_idx = *idx;
 	} else
 		ui_helpline__fpush("%s not found!", target);
 
 	return 0;
 }
 
-static int map_browser__run(struct map_browser *self)
+static int map_browser__run(struct map_browser *browser)
 {
 	int key;
 
-	if (ui_browser__show(&self->b, self->map->dso->long_name,
+	if (ui_browser__show(&browser->b, browser->map->dso->long_name,
 			     "Press <- or ESC to exit, %s / to search",
 			     verbose ? "" : "restart with -v to use") < 0)
 		return -1;
 
 	while (1) {
-		key = ui_browser__run(&self->b, 0);
+		key = ui_browser__run(&browser->b, 0);
 
 		switch (key) {
 		case '/':
 			if (verbose)
-				map_browser__search(self);
+				map_browser__search(browser);
 		default:
 			break;
                 case K_LEFT:
@@ -94,20 +94,20 @@ static int map_browser__run(struct map_browser *self)
 		}
 	}
 out:
-	ui_browser__hide(&self->b);
+	ui_browser__hide(&browser->b);
 	return key;
 }
 
-int map__browse(struct map *self)
+int map__browse(struct map *map)
 {
 	struct map_browser mb = {
 		.b = {
-			.entries = &self->dso->symbols[self->type],
+			.entries = &map->dso->symbols[map->type],
 			.refresh = ui_browser__rb_tree_refresh,
 			.seek	 = ui_browser__rb_tree_seek,
 			.write	 = map_browser__write,
 		},
-		.map = self,
+		.map = map,
 	};
 	struct rb_node *nd;
 	char tmp[BITS_PER_LONG / 4];
diff --git a/tools/perf/ui/browsers/map.h b/tools/perf/ui/browsers/map.h
index df8581a43e17..2d58e4b3eb6f 100644
--- a/tools/perf/ui/browsers/map.h
+++ b/tools/perf/ui/browsers/map.h
@@ -2,5 +2,5 @@
 #define _PERF_UI_MAP_BROWSER_H_ 1
 struct map;
 
-int map__browse(struct map *self);
+int map__browse(struct map *map);
 #endif /* _PERF_UI_MAP_BROWSER_H_ */
diff --git a/tools/perf/ui/browsers/scripts.c b/tools/perf/ui/browsers/scripts.c
index 12f009e61e94..d63c68ea02a8 100644
--- a/tools/perf/ui/browsers/scripts.c
+++ b/tools/perf/ui/browsers/scripts.c
@@ -84,22 +84,22 @@ static void script_browser__write(struct ui_browser *browser,
 	slsmg_write_nstring(sline->line, browser->width);
 }
 
-static int script_browser__run(struct perf_script_browser *self)
+static int script_browser__run(struct perf_script_browser *browser)
 {
 	int key;
 
-	if (ui_browser__show(&self->b, self->script_name,
+	if (ui_browser__show(&browser->b, browser->script_name,
 			     "Press <- or ESC to exit") < 0)
 		return -1;
 
 	while (1) {
-		key = ui_browser__run(&self->b, 0);
+		key = ui_browser__run(&browser->b, 0);
 
 		/* We can add some special key handling here if needed */
 		break;
 	}
 
-	ui_browser__hide(&self->b);
+	ui_browser__hide(&browser->b);
 	return key;
 }
 
diff --git a/tools/perf/ui/stdio/hist.c b/tools/perf/ui/stdio/hist.c
index 6c152686e837..c244cb524ef2 100644
--- a/tools/perf/ui/stdio/hist.c
+++ b/tools/perf/ui/stdio/hist.c
@@ -213,20 +213,19 @@ static size_t callchain__fprintf_graph(FILE *fp, struct rb_root *root,
 	return ret;
 }
 
-static size_t __callchain__fprintf_flat(FILE *fp,
-					struct callchain_node *self,
+static size_t __callchain__fprintf_flat(FILE *fp, struct callchain_node *node,
 					u64 total_samples)
 {
 	struct callchain_list *chain;
 	size_t ret = 0;
 
-	if (!self)
+	if (!node)
 		return 0;
 
-	ret += __callchain__fprintf_flat(fp, self->parent, total_samples);
+	ret += __callchain__fprintf_flat(fp, node->parent, total_samples);
 
 
-	list_for_each_entry(chain, &self->val, list) {
+	list_for_each_entry(chain, &node->val, list) {
 		if (chain->ip >= PERF_CONTEXT_MAX)
 			continue;
 		if (chain->ms.sym)
@@ -239,15 +238,14 @@ static size_t __callchain__fprintf_flat(FILE *fp,
 	return ret;
 }
 
-static size_t callchain__fprintf_flat(FILE *fp, struct rb_root *self,
+static size_t callchain__fprintf_flat(FILE *fp, struct rb_root *tree,
 				      u64 total_samples)
 {
 	size_t ret = 0;
 	u32 entries_printed = 0;
-	struct rb_node *rb_node;
 	struct callchain_node *chain;
+	struct rb_node *rb_node = rb_first(tree);
 
-	rb_node = rb_first(self);
 	while (rb_node) {
 		double percent;
 
diff --git a/tools/perf/util/build-id.h b/tools/perf/util/build-id.h
index a811f5c62e18..929f28a7c14d 100644
--- a/tools/perf/util/build-id.h
+++ b/tools/perf/util/build-id.h
@@ -10,10 +10,9 @@ extern struct perf_tool build_id__mark_dso_hit_ops;
 struct dso;
 
 int build_id__sprintf(const u8 *build_id, int len, char *bf);
-char *dso__build_id_filename(struct dso *self, char *bf, size_t size);
+char *dso__build_id_filename(struct dso *dso, char *bf, size_t size);
 
 int build_id__mark_dso_hit(struct perf_tool *tool, union perf_event *event,
 			   struct perf_sample *sample, struct perf_evsel *evsel,
 			   struct machine *machine);
-
 #endif
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index c26b3539187b..ec9ae1114ed4 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -617,15 +617,15 @@ int perf_event__process(struct perf_tool *tool __maybe_unused,
 	return machine__process_event(machine, event, sample);
 }
 
-void thread__find_addr_map(struct thread *self,
+void thread__find_addr_map(struct thread *thread,
 			   struct machine *machine, u8 cpumode,
 			   enum map_type type, u64 addr,
 			   struct addr_location *al)
 {
-	struct map_groups *mg = &self->mg;
+	struct map_groups *mg = &thread->mg;
 	bool load_map = false;
 
-	al->thread = self;
+	al->thread = thread;
 	al->addr = addr;
 	al->cpumode = cpumode;
 	al->filtered = false;
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index 752709ccfb00..f8d70f3003ab 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -251,7 +251,8 @@ int perf_event__process(struct perf_tool *tool,
 			struct machine *machine);
 
 struct addr_location;
-int perf_event__preprocess_sample(const union perf_event *self,
+
+int perf_event__preprocess_sample(const union perf_event *event,
 				  struct machine *machine,
 				  struct addr_location *al,
 				  struct perf_sample *sample);
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 0617ce2a0679..e99eaed92682 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -88,7 +88,7 @@ struct perf_evsel *perf_evlist__id2evsel(struct perf_evlist *evlist, u64 id);
 
 struct perf_sample_id *perf_evlist__id2sid(struct perf_evlist *evlist, u64 id);
 
-union perf_event *perf_evlist__mmap_read(struct perf_evlist *self, int idx);
+union perf_event *perf_evlist__mmap_read(struct perf_evlist *evlist, int idx);
 
 void perf_evlist__mmap_consume(struct perf_evlist *evlist, int idx);
 
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 307f1c742563..b621347a1585 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -84,7 +84,7 @@ struct hists {
 	u16			col_len[HISTC_NR_COLS];
 };
 
-struct hist_entry *__hists__add_entry(struct hists *self,
+struct hist_entry *__hists__add_entry(struct hists *hists,
 				      struct addr_location *al,
 				      struct symbol *parent,
 				      struct branch_info *bi,
@@ -93,34 +93,34 @@ struct hist_entry *__hists__add_entry(struct hists *self,
 int64_t hist_entry__cmp(struct hist_entry *left, struct hist_entry *right);
 int64_t hist_entry__collapse(struct hist_entry *left, struct hist_entry *right);
 int hist_entry__transaction_len(void);
-int hist_entry__sort_snprintf(struct hist_entry *self, char *bf, size_t size,
+int hist_entry__sort_snprintf(struct hist_entry *he, char *bf, size_t size,
 			      struct hists *hists);
 void hist_entry__free(struct hist_entry *);
 
-void hists__output_resort(struct hists *self);
-void hists__collapse_resort(struct hists *self, struct ui_progress *prog);
+void hists__output_resort(struct hists *hists);
+void hists__collapse_resort(struct hists *hists, struct ui_progress *prog);
 
 void hists__decay_entries(struct hists *hists, bool zap_user, bool zap_kernel);
 void hists__output_recalc_col_len(struct hists *hists, int max_rows);
 
 void hists__inc_nr_entries(struct hists *hists, struct hist_entry *h);
-void hists__inc_nr_events(struct hists *self, u32 type);
+void hists__inc_nr_events(struct hists *hists, u32 type);
 void events_stats__inc(struct events_stats *stats, u32 type);
 size_t events_stats__fprintf(struct events_stats *stats, FILE *fp);
 
-size_t hists__fprintf(struct hists *self, bool show_header, int max_rows,
+size_t hists__fprintf(struct hists *hists, bool show_header, int max_rows,
 		      int max_cols, float min_pcnt, FILE *fp);
 
-int hist_entry__inc_addr_samples(struct hist_entry *self, int evidx, u64 addr);
-int hist_entry__annotate(struct hist_entry *self, size_t privsize);
+int hist_entry__inc_addr_samples(struct hist_entry *he, int evidx, u64 addr);
+int hist_entry__annotate(struct hist_entry *he, size_t privsize);
 
 void hists__filter_by_dso(struct hists *hists);
 void hists__filter_by_thread(struct hists *hists);
 void hists__filter_by_symbol(struct hists *hists);
 
-u16 hists__col_len(struct hists *self, enum hist_column col);
-void hists__set_col_len(struct hists *self, enum hist_column col, u16 len);
-bool hists__new_col_len(struct hists *self, enum hist_column col, u16 len);
+u16 hists__col_len(struct hists *hists, enum hist_column col);
+void hists__set_col_len(struct hists *hists, enum hist_column col, u16 len);
+bool hists__new_col_len(struct hists *hists, enum hist_column col, u16 len);
 void hists__reset_col_len(struct hists *hists);
 void hists__calc_col_len(struct hists *hists, struct hist_entry *he);
 
@@ -210,12 +210,9 @@ int perf_evlist__tui_browse_hists(struct perf_evlist *evlist __maybe_unused,
 	return 0;
 }
 
-static inline int hist_entry__tui_annotate(struct hist_entry *self
-					   __maybe_unused,
-					   struct perf_evsel *evsel
-					   __maybe_unused,
-					   struct hist_browser_timer *hbt
-					   __maybe_unused)
+static inline int hist_entry__tui_annotate(struct hist_entry *he __maybe_unused,
+					   struct perf_evsel *evsel __maybe_unused,
+					   struct hist_browser_timer *hbt __maybe_unused)
 {
 	return 0;
 }
@@ -230,5 +227,5 @@ static inline int script_browse(const char *script_opt __maybe_unused)
 #define K_SWITCH_INPUT_DATA -3000
 #endif
 
-unsigned int hists__sort_list_width(struct hists *self);
+unsigned int hists__sort_list_width(struct hists *hists);
 #endif	/* __PERF_HIST_H */
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 2200dad4c3f4..ffb657ffd327 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -115,7 +115,7 @@ static const Dwfl_Callbacks offline_callbacks = {
 };
 
 /* Get a Dwarf from offline image */
-static int debuginfo__init_offline_dwarf(struct debuginfo *self,
+static int debuginfo__init_offline_dwarf(struct debuginfo *dbg,
 					 const char *path)
 {
 	int fd;
@@ -124,25 +124,25 @@ static int debuginfo__init_offline_dwarf(struct debuginfo *self,
 	if (fd < 0)
 		return fd;
 
-	self->dwfl = dwfl_begin(&offline_callbacks);
-	if (!self->dwfl)
+	dbg->dwfl = dwfl_begin(&offline_callbacks);
+	if (!dbg->dwfl)
 		goto error;
 
-	self->mod = dwfl_report_offline(self->dwfl, "", "", fd);
-	if (!self->mod)
+	dbg->mod = dwfl_report_offline(dbg->dwfl, "", "", fd);
+	if (!dbg->mod)
 		goto error;
 
-	self->dbg = dwfl_module_getdwarf(self->mod, &self->bias);
-	if (!self->dbg)
+	dbg->dbg = dwfl_module_getdwarf(dbg->mod, &dbg->bias);
+	if (!dbg->dbg)
 		goto error;
 
 	return 0;
 error:
-	if (self->dwfl)
-		dwfl_end(self->dwfl);
+	if (dbg->dwfl)
+		dwfl_end(dbg->dwfl);
 	else
 		close(fd);
-	memset(self, 0, sizeof(*self));
+	memset(dbg, 0, sizeof(*dbg));
 
 	return -ENOENT;
 }
@@ -180,24 +180,24 @@ static const Dwfl_Callbacks kernel_callbacks = {
 };
 
 /* Get a Dwarf from live kernel image */
-static int debuginfo__init_online_kernel_dwarf(struct debuginfo *self,
+static int debuginfo__init_online_kernel_dwarf(struct debuginfo *dbg,
 					       Dwarf_Addr addr)
 {
-	self->dwfl = dwfl_begin(&kernel_callbacks);
-	if (!self->dwfl)
+	dbg->dwfl = dwfl_begin(&kernel_callbacks);
+	if (!dbg->dwfl)
 		return -EINVAL;
 
 	/* Load the kernel dwarves: Don't care the result here */
-	dwfl_linux_kernel_report_kernel(self->dwfl);
-	dwfl_linux_kernel_report_modules(self->dwfl);
+	dwfl_linux_kernel_report_kernel(dbg->dwfl);
+	dwfl_linux_kernel_report_modules(dbg->dwfl);
 
-	self->dbg = dwfl_addrdwarf(self->dwfl, addr, &self->bias);
+	dbg->dbg = dwfl_addrdwarf(dbg->dwfl, addr, &dbg->bias);
 	/* Here, check whether we could get a real dwarf */
-	if (!self->dbg) {
+	if (!dbg->dbg) {
 		pr_debug("Failed to find kernel dwarf at %lx\n",
 			 (unsigned long)addr);
-		dwfl_end(self->dwfl);
-		memset(self, 0, sizeof(*self));
+		dwfl_end(dbg->dwfl);
+		memset(dbg, 0, sizeof(*dbg));
 		return -ENOENT;
 	}
 
@@ -205,7 +205,7 @@ static int debuginfo__init_online_kernel_dwarf(struct debuginfo *self,
 }
 #else
 /* With older elfutils, this just support kernel module... */
-static int debuginfo__init_online_kernel_dwarf(struct debuginfo *self,
+static int debuginfo__init_online_kernel_dwarf(struct debuginfo *dbg,
 					       Dwarf_Addr addr __maybe_unused)
 {
 	const char *path = kernel_get_module_path("kernel");
@@ -216,44 +216,45 @@ static int debuginfo__init_online_kernel_dwarf(struct debuginfo *self,
 	}
 
 	pr_debug2("Use file %s for debuginfo\n", path);
-	return debuginfo__init_offline_dwarf(self, path);
+	return debuginfo__init_offline_dwarf(dbg, path);
 }
 #endif
 
 struct debuginfo *debuginfo__new(const char *path)
 {
-	struct debuginfo *self = zalloc(sizeof(struct debuginfo));
-	if (!self)
+	struct debuginfo *dbg = zalloc(sizeof(*dbg));
+	if (!dbg)
 		return NULL;
 
-	if (debuginfo__init_offline_dwarf(self, path) < 0) {
-		free(self);
-		self = NULL;
+	if (debuginfo__init_offline_dwarf(dbg, path) < 0) {
+		free(dbg);
+		dbg = NULL;
 	}
 
-	return self;
+	return dbg;
 }
 
 struct debuginfo *debuginfo__new_online_kernel(unsigned long addr)
 {
-	struct debuginfo *self = zalloc(sizeof(struct debuginfo));
-	if (!self)
+	struct debuginfo *dbg = zalloc(sizeof(*dbg));
+
+	if (!dbg)
 		return NULL;
 
-	if (debuginfo__init_online_kernel_dwarf(self, (Dwarf_Addr)addr) < 0) {
-		free(self);
-		self = NULL;
+	if (debuginfo__init_online_kernel_dwarf(dbg, (Dwarf_Addr)addr) < 0) {
+		free(dbg);
+		dbg = NULL;
 	}
 
-	return self;
+	return dbg;
 }
 
-void debuginfo__delete(struct debuginfo *self)
+void debuginfo__delete(struct debuginfo *dbg)
 {
-	if (self) {
-		if (self->dwfl)
-			dwfl_end(self->dwfl);
-		free(self);
+	if (dbg) {
+		if (dbg->dwfl)
+			dwfl_end(dbg->dwfl);
+		free(dbg);
 	}
 }
 
@@ -1083,7 +1084,7 @@ static int pubname_search_cb(Dwarf *dbg, Dwarf_Global *gl, void *data)
 }
 
 /* Find probe points from debuginfo */
-static int debuginfo__find_probes(struct debuginfo *self,
+static int debuginfo__find_probes(struct debuginfo *dbg,
 				  struct probe_finder *pf)
 {
 	struct perf_probe_point *pp = &pf->pev->point;
@@ -1094,7 +1095,7 @@ static int debuginfo__find_probes(struct debuginfo *self,
 
 #if _ELFUTILS_PREREQ(0, 142)
 	/* Get the call frame information from this dwarf */
-	pf->cfi = dwarf_getcfi(self->dbg);
+	pf->cfi = dwarf_getcfi(dbg->dbg);
 #endif
 
 	off = 0;
@@ -1113,7 +1114,7 @@ static int debuginfo__find_probes(struct debuginfo *self,
 			.data = pf,
 		};
 
-		dwarf_getpubnames(self->dbg, pubname_search_cb,
+		dwarf_getpubnames(dbg->dbg, pubname_search_cb,
 				  &pubname_param, 0);
 		if (pubname_param.found) {
 			ret = probe_point_search_cb(&pf->sp_die, &probe_param);
@@ -1123,9 +1124,9 @@ static int debuginfo__find_probes(struct debuginfo *self,
 	}
 
 	/* Loop on CUs (Compilation Unit) */
-	while (!dwarf_nextcu(self->dbg, off, &noff, &cuhl, NULL, NULL, NULL)) {
+	while (!dwarf_nextcu(dbg->dbg, off, &noff, &cuhl, NULL, NULL, NULL)) {
 		/* Get the DIE(Debugging Information Entry) of this CU */
-		diep = dwarf_offdie(self->dbg, off + cuhl, &pf->cu_die);
+		diep = dwarf_offdie(dbg->dbg, off + cuhl, &pf->cu_die);
 		if (!diep)
 			continue;
 
@@ -1281,13 +1282,13 @@ end:
 }
 
 /* Find probe_trace_events specified by perf_probe_event from debuginfo */
-int debuginfo__find_trace_events(struct debuginfo *self,
+int debuginfo__find_trace_events(struct debuginfo *dbg,
 				 struct perf_probe_event *pev,
 				 struct probe_trace_event **tevs, int max_tevs)
 {
 	struct trace_event_finder tf = {
 			.pf = {.pev = pev, .callback = add_probe_trace_event},
-			.mod = self->mod, .max_tevs = max_tevs};
+			.mod = dbg->mod, .max_tevs = max_tevs};
 	int ret;
 
 	/* Allocate result tevs array */
@@ -1298,7 +1299,7 @@ int debuginfo__find_trace_events(struct debuginfo *self,
 	tf.tevs = *tevs;
 	tf.ntevs = 0;
 
-	ret = debuginfo__find_probes(self, &tf.pf);
+	ret = debuginfo__find_probes(dbg, &tf.pf);
 	if (ret < 0) {
 		free(*tevs);
 		*tevs = NULL;
@@ -1389,14 +1390,14 @@ out:
 }
 
 /* Find available variables at given probe point */
-int debuginfo__find_available_vars_at(struct debuginfo *self,
+int debuginfo__find_available_vars_at(struct debuginfo *dbg,
 				      struct perf_probe_event *pev,
 				      struct variable_list **vls,
 				      int max_vls, bool externs)
 {
 	struct available_var_finder af = {
 			.pf = {.pev = pev, .callback = add_available_vars},
-			.mod = self->mod,
+			.mod = dbg->mod,
 			.max_vls = max_vls, .externs = externs};
 	int ret;
 
@@ -1408,7 +1409,7 @@ int debuginfo__find_available_vars_at(struct debuginfo *self,
 	af.vls = *vls;
 	af.nvls = 0;
 
-	ret = debuginfo__find_probes(self, &af.pf);
+	ret = debuginfo__find_probes(dbg, &af.pf);
 	if (ret < 0) {
 		/* Free vlist for error */
 		while (af.nvls--) {
@@ -1426,7 +1427,7 @@ int debuginfo__find_available_vars_at(struct debuginfo *self,
 }
 
 /* Reverse search */
-int debuginfo__find_probe_point(struct debuginfo *self, unsigned long addr,
+int debuginfo__find_probe_point(struct debuginfo *dbg, unsigned long addr,
 				struct perf_probe_point *ppt)
 {
 	Dwarf_Die cudie, spdie, indie;
@@ -1435,10 +1436,10 @@ int debuginfo__find_probe_point(struct debuginfo *self, unsigned long addr,
 	int baseline = 0, lineno = 0, ret = 0;
 
 	/* Adjust address with bias */
-	addr += self->bias;
+	addr += dbg->bias;
 
 	/* Find cu die */
-	if (!dwarf_addrdie(self->dbg, (Dwarf_Addr)addr - self->bias, &cudie)) {
+	if (!dwarf_addrdie(dbg->dbg, (Dwarf_Addr)addr - dbg->bias, &cudie)) {
 		pr_warning("Failed to find debug information for address %lx\n",
 			   addr);
 		ret = -EINVAL;
@@ -1639,7 +1640,7 @@ static int find_line_range_by_func(struct line_finder *lf)
 	return param.retval;
 }
 
-int debuginfo__find_line_range(struct debuginfo *self, struct line_range *lr)
+int debuginfo__find_line_range(struct debuginfo *dbg, struct line_range *lr)
 {
 	struct line_finder lf = {.lr = lr, .found = 0};
 	int ret = 0;
@@ -1656,7 +1657,7 @@ int debuginfo__find_line_range(struct debuginfo *self, struct line_range *lr)
 		struct dwarf_callback_param line_range_param = {
 			.data = (void *)&lf, .retval = 0};
 
-		dwarf_getpubnames(self->dbg, pubname_search_cb,
+		dwarf_getpubnames(dbg->dbg, pubname_search_cb,
 				  &pubname_param, 0);
 		if (pubname_param.found) {
 			line_range_search_cb(&lf.sp_die, &line_range_param);
@@ -1667,12 +1668,12 @@ int debuginfo__find_line_range(struct debuginfo *self, struct line_range *lr)
 
 	/* Loop on CUs (Compilation Unit) */
 	while (!lf.found && ret >= 0) {
-		if (dwarf_nextcu(self->dbg, off, &noff, &cuhl,
+		if (dwarf_nextcu(dbg->dbg, off, &noff, &cuhl,
 				 NULL, NULL, NULL) != 0)
 			break;
 
 		/* Get the DIE(Debugging Information Entry) of this CU */
-		diep = dwarf_offdie(self->dbg, off + cuhl, &lf.cu_die);
+		diep = dwarf_offdie(dbg->dbg, off + cuhl, &lf.cu_die);
 		if (!diep)
 			continue;
 
diff --git a/tools/perf/util/probe-finder.h b/tools/perf/util/probe-finder.h
index d6dab0e0a937..ffc33cdd25cc 100644
--- a/tools/perf/util/probe-finder.h
+++ b/tools/perf/util/probe-finder.h
@@ -31,25 +31,25 @@ struct debuginfo {
 
 extern struct debuginfo *debuginfo__new(const char *path);
 extern struct debuginfo *debuginfo__new_online_kernel(unsigned long addr);
-extern void debuginfo__delete(struct debuginfo *self);
+extern void debuginfo__delete(struct debuginfo *dbg);
 
 /* Find probe_trace_events specified by perf_probe_event from debuginfo */
-extern int debuginfo__find_trace_events(struct debuginfo *self,
+extern int debuginfo__find_trace_events(struct debuginfo *dbg,
 					struct perf_probe_event *pev,
 					struct probe_trace_event **tevs,
 					int max_tevs);
 
 /* Find a perf_probe_point from debuginfo */
-extern int debuginfo__find_probe_point(struct debuginfo *self,
+extern int debuginfo__find_probe_point(struct debuginfo *dbg,
 				       unsigned long addr,
 				       struct perf_probe_point *ppt);
 
 /* Find a line range */
-extern int debuginfo__find_line_range(struct debuginfo *self,
+extern int debuginfo__find_line_range(struct debuginfo *dbg,
 				      struct line_range *lr);
 
 /* Find available variables */
-extern int debuginfo__find_available_vars_at(struct debuginfo *self,
+extern int debuginfo__find_available_vars_at(struct debuginfo *dbg,
 					     struct perf_probe_event *pev,
 					     struct variable_list **vls,
 					     int max_points, bool externs);
diff --git a/tools/perf/util/pstack.h b/tools/perf/util/pstack.h
index 4cedea59f518..c3cb6584d527 100644
--- a/tools/perf/util/pstack.h
+++ b/tools/perf/util/pstack.h
@@ -5,10 +5,10 @@
 
 struct pstack;
 struct pstack *pstack__new(unsigned short max_nr_entries);
-void pstack__delete(struct pstack *self);
-bool pstack__empty(const struct pstack *self);
-void pstack__remove(struct pstack *self, void *key);
-void pstack__push(struct pstack *self, void *key);
-void *pstack__pop(struct pstack *self);
+void pstack__delete(struct pstack *pstack);
+bool pstack__empty(const struct pstack *pstack);
+void pstack__remove(struct pstack *pstack, void *key);
+void pstack__push(struct pstack *pstack, void *key);
+void *pstack__pop(struct pstack *pstack);
 
 #endif /* _PERF_PSTACK_ */
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 3c1b30103d54..0ce46943d627 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -16,11 +16,11 @@
 #include "perf_regs.h"
 #include "vdso.h"
 
-static int perf_session__open(struct perf_session *self)
+static int perf_session__open(struct perf_session *session)
 {
-	struct perf_data_file *file = self->file;
+	struct perf_data_file *file = session->file;
 
-	if (perf_session__read_header(self) < 0) {
+	if (perf_session__read_header(session) < 0) {
 		pr_err("incompatible file format (rerun with -v to learn more)");
 		return -1;
 	}
@@ -28,17 +28,17 @@ static int perf_session__open(struct perf_session *self)
 	if (perf_data_file__is_pipe(file))
 		return 0;
 
-	if (!perf_evlist__valid_sample_type(self->evlist)) {
+	if (!perf_evlist__valid_sample_type(session->evlist)) {
 		pr_err("non matching sample_type");
 		return -1;
 	}
 
-	if (!perf_evlist__valid_sample_id_all(self->evlist)) {
+	if (!perf_evlist__valid_sample_id_all(session->evlist)) {
 		pr_err("non matching sample_id_all");
 		return -1;
 	}
 
-	if (!perf_evlist__valid_read_format(self->evlist)) {
+	if (!perf_evlist__valid_read_format(session->evlist)) {
 		pr_err("non matching read_format");
 		return -1;
 	}
@@ -53,46 +53,45 @@ void perf_session__set_id_hdr_size(struct perf_session *session)
 	machines__set_id_hdr_size(&session->machines, id_hdr_size);
 }
 
-int perf_session__create_kernel_maps(struct perf_session *self)
+int perf_session__create_kernel_maps(struct perf_session *session)
 {
-	int ret = machine__create_kernel_maps(&self->machines.host);
+	int ret = machine__create_kernel_maps(&session->machines.host);
 
 	if (ret >= 0)
-		ret = machines__create_guest_kernel_maps(&self->machines);
+		ret = machines__create_guest_kernel_maps(&session->machines);
 	return ret;
 }
 
-static void perf_session__destroy_kernel_maps(struct perf_session *self)
+static void perf_session__destroy_kernel_maps(struct perf_session *session)
 {
-	machines__destroy_kernel_maps(&self->machines);
+	machines__destroy_kernel_maps(&session->machines);
 }
 
 struct perf_session *perf_session__new(struct perf_data_file *file,
 				       bool repipe, struct perf_tool *tool)
 {
-	struct perf_session *self;
+	struct perf_session *session = zalloc(sizeof(*session));
 
-	self = zalloc(sizeof(*self));
-	if (!self)
+	if (!session)
 		goto out;
 
-	self->repipe = repipe;
-	INIT_LIST_HEAD(&self->ordered_samples.samples);
-	INIT_LIST_HEAD(&self->ordered_samples.sample_cache);
-	INIT_LIST_HEAD(&self->ordered_samples.to_free);
-	machines__init(&self->machines);
+	session->repipe = repipe;
+	INIT_LIST_HEAD(&session->ordered_samples.samples);
+	INIT_LIST_HEAD(&session->ordered_samples.sample_cache);
+	INIT_LIST_HEAD(&session->ordered_samples.to_free);
+	machines__init(&session->machines);
 
 	if (file) {
 		if (perf_data_file__open(file))
 			goto out_delete;
 
-		self->file = file;
+		session->file = file;
 
 		if (perf_data_file__is_read(file)) {
-			if (perf_session__open(self) < 0)
+			if (perf_session__open(session) < 0)
 				goto out_close;
 
-			perf_session__set_id_hdr_size(self);
+			perf_session__set_id_hdr_size(session);
 		}
 	}
 
@@ -101,22 +100,22 @@ struct perf_session *perf_session__new(struct perf_data_file *file,
 		 * In O_RDONLY mode this will be performed when reading the
 		 * kernel MMAP event, in perf_event__process_mmap().
 		 */
-		if (perf_session__create_kernel_maps(self) < 0)
+		if (perf_session__create_kernel_maps(session) < 0)
 			goto out_delete;
 	}
 
 	if (tool && tool->ordering_requires_timestamps &&
-	    tool->ordered_samples && !perf_evlist__sample_id_all(self->evlist)) {
+	    tool->ordered_samples && !perf_evlist__sample_id_all(session->evlist)) {
 		dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n");
 		tool->ordered_samples = false;
 	}
 
-	return self;
+	return session;
 
  out_close:
 	perf_data_file__close(file);
  out_delete:
-	perf_session__delete(self);
+	perf_session__delete(session);
  out:
 	return NULL;
 }
@@ -147,16 +146,16 @@ static void perf_session_env__delete(struct perf_session_env *env)
 	free(env->pmu_mappings);
 }
 
-void perf_session__delete(struct perf_session *self)
+void perf_session__delete(struct perf_session *session)
 {
-	perf_session__destroy_kernel_maps(self);
-	perf_session__delete_dead_threads(self);
-	perf_session__delete_threads(self);
-	perf_session_env__delete(&self->header.env);
-	machines__exit(&self->machines);
-	if (self->file)
-		perf_data_file__close(self->file);
-	free(self);
+	perf_session__destroy_kernel_maps(session);
+	perf_session__delete_dead_threads(session);
+	perf_session__delete_threads(session);
+	perf_session_env__delete(&session->header.env);
+	machines__exit(&session->machines);
+	if (session->file)
+		perf_data_file__close(session->file);
+	free(session);
 	vdso__exit();
 }
 
@@ -1084,11 +1083,11 @@ static int perf_session__process_event(struct perf_session *session,
 					  file_offset);
 }
 
-void perf_event_header__bswap(struct perf_event_header *self)
+void perf_event_header__bswap(struct perf_event_header *hdr)
 {
-	self->type = bswap_32(self->type);
-	self->misc = bswap_16(self->misc);
-	self->size = bswap_16(self->size);
+	hdr->type = bswap_32(hdr->type);
+	hdr->misc = bswap_16(hdr->misc);
+	hdr->size = bswap_16(hdr->size);
 }
 
 struct thread *perf_session__findnew(struct perf_session *session, pid_t pid)
@@ -1096,9 +1095,9 @@ struct thread *perf_session__findnew(struct perf_session *session, pid_t pid)
 	return machine__findnew_thread(&session->machines.host, 0, pid);
 }
 
-static struct thread *perf_session__register_idle_thread(struct perf_session *self)
+static struct thread *perf_session__register_idle_thread(struct perf_session *session)
 {
-	struct thread *thread = perf_session__findnew(self, 0);
+	struct thread *thread = perf_session__findnew(session, 0);
 
 	if (thread == NULL || thread__set_comm(thread, "swapper", 0)) {
 		pr_err("problem inserting idle task.\n");
@@ -1150,10 +1149,10 @@ static void perf_session__warn_about_errors(const struct perf_session *session,
 
 volatile int session_done;
 
-static int __perf_session__process_pipe_events(struct perf_session *self,
+static int __perf_session__process_pipe_events(struct perf_session *session,
 					       struct perf_tool *tool)
 {
-	int fd = perf_data_file__fd(self->file);
+	int fd = perf_data_file__fd(session->file);
 	union perf_event *event;
 	uint32_t size, cur_size = 0;
 	void *buf = NULL;
@@ -1181,7 +1180,7 @@ more:
 		goto out_err;
 	}
 
-	if (self->header.needs_swap)
+	if (session->header.needs_swap)
 		perf_event_header__bswap(&event->header);
 
 	size = event->header.size;
@@ -1216,7 +1215,7 @@ more:
 		}
 	}
 
-	if ((skip = perf_session__process_event(self, event, tool, head)) < 0) {
+	if ((skip = perf_session__process_event(session, event, tool, head)) < 0) {
 		pr_err("%#" PRIx64 " [%#x]: failed to process type: %d\n",
 		       head, event->header.size, event->header.type);
 		err = -EINVAL;
@@ -1232,12 +1231,12 @@ more:
 		goto more;
 done:
 	/* do the final flush for ordered samples */
-	self->ordered_samples.next_flush = ULLONG_MAX;
-	err = flush_sample_queue(self, tool);
+	session->ordered_samples.next_flush = ULLONG_MAX;
+	err = flush_sample_queue(session, tool);
 out_err:
 	free(buf);
-	perf_session__warn_about_errors(self, tool);
-	perf_session_free_sample_buffers(self);
+	perf_session__warn_about_errors(session, tool);
+	perf_session_free_sample_buffers(session);
 	return err;
 }
 
@@ -1377,22 +1376,22 @@ out_err:
 	return err;
 }
 
-int perf_session__process_events(struct perf_session *self,
+int perf_session__process_events(struct perf_session *session,
 				 struct perf_tool *tool)
 {
-	u64 size = perf_data_file__size(self->file);
+	u64 size = perf_data_file__size(session->file);
 	int err;
 
-	if (perf_session__register_idle_thread(self) == NULL)
+	if (perf_session__register_idle_thread(session) == NULL)
 		return -ENOMEM;
 
-	if (!perf_data_file__is_pipe(self->file))
-		err = __perf_session__process_events(self,
-						     self->header.data_offset,
-						     self->header.data_size,
+	if (!perf_data_file__is_pipe(session->file))
+		err = __perf_session__process_events(session,
+						     session->header.data_offset,
+						     session->header.data_size,
 						     size, tool);
 	else
-		err = __perf_session__process_pipe_events(self, tool);
+		err = __perf_session__process_pipe_events(session, tool);
 
 	return err;
 }
@@ -1441,15 +1440,15 @@ int maps__set_kallsyms_ref_reloc_sym(struct map **maps,
 	return 0;
 }
 
-size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp)
+size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp)
 {
-	return machines__fprintf_dsos(&self->machines, fp);
+	return machines__fprintf_dsos(&session->machines, fp);
 }
 
-size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, FILE *fp,
+size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp,
 					  bool (skip)(struct dso *dso, int parm), int parm)
 {
-	return machines__fprintf_dsos_buildid(&self->machines, fp, skip, parm);
+	return machines__fprintf_dsos_buildid(&session->machines, fp, skip, parm);
 }
 
 size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp)
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 27c74d38b868..50f640958f0f 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -51,12 +51,12 @@ struct perf_session *perf_session__new(struct perf_data_file *file,
 				       bool repipe, struct perf_tool *tool);
 void perf_session__delete(struct perf_session *session);
 
-void perf_event_header__bswap(struct perf_event_header *self);
+void perf_event_header__bswap(struct perf_event_header *hdr);
 
-int __perf_session__process_events(struct perf_session *self,
+int __perf_session__process_events(struct perf_session *session,
 				   u64 data_offset, u64 data_size, u64 size,
 				   struct perf_tool *tool);
-int perf_session__process_events(struct perf_session *self,
+int perf_session__process_events(struct perf_session *session,
 				 struct perf_tool *tool);
 
 int perf_session_queue_event(struct perf_session *s, union perf_event *event,
@@ -64,37 +64,38 @@ int perf_session_queue_event(struct perf_session *s, union perf_event *event,
 
 void perf_tool__fill_defaults(struct perf_tool *tool);
 
-int perf_session__resolve_callchain(struct perf_session *self, struct perf_evsel *evsel,
+int perf_session__resolve_callchain(struct perf_session *session,
+				    struct perf_evsel *evsel,
 				    struct thread *thread,
 				    struct ip_callchain *chain,
 				    struct symbol **parent);
 
-bool perf_session__has_traces(struct perf_session *self, const char *msg);
+bool perf_session__has_traces(struct perf_session *session, const char *msg);
 
 void mem_bswap_64(void *src, int byte_size);
 void mem_bswap_32(void *src, int byte_size);
 void perf_event__attr_swap(struct perf_event_attr *attr);
 
-int perf_session__create_kernel_maps(struct perf_session *self);
+int perf_session__create_kernel_maps(struct perf_session *session);
 
 void perf_session__set_id_hdr_size(struct perf_session *session);
 
 static inline
-struct machine *perf_session__find_machine(struct perf_session *self, pid_t pid)
+struct machine *perf_session__find_machine(struct perf_session *session, pid_t pid)
 {
-	return machines__find(&self->machines, pid);
+	return machines__find(&session->machines, pid);
 }
 
 static inline
-struct machine *perf_session__findnew_machine(struct perf_session *self, pid_t pid)
+struct machine *perf_session__findnew_machine(struct perf_session *session, pid_t pid)
 {
-	return machines__findnew(&self->machines, pid);
+	return machines__findnew(&session->machines, pid);
 }
 
-struct thread *perf_session__findnew(struct perf_session *self, pid_t pid);
-size_t perf_session__fprintf(struct perf_session *self, FILE *fp);
+struct thread *perf_session__findnew(struct perf_session *session, pid_t pid);
+size_t perf_session__fprintf(struct perf_session *session, FILE *fp);
 
-size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp);
+size_t perf_session__fprintf_dsos(struct perf_session *session, FILE *fp);
 
 size_t perf_session__fprintf_dsos_buildid(struct perf_session *session, FILE *fp,
 					  bool (fn)(struct dso *dso, int parm), int parm);
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index f4e16f359d64..f4cc147e0220 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -180,7 +180,7 @@ struct sort_entry {
 
 	int64_t (*se_cmp)(struct hist_entry *, struct hist_entry *);
 	int64_t (*se_collapse)(struct hist_entry *, struct hist_entry *);
-	int	(*se_snprintf)(struct hist_entry *self, char *bf, size_t size,
+	int	(*se_snprintf)(struct hist_entry *he, char *bf, size_t size,
 			       unsigned int width);
 	u8	se_width_idx;
 	bool	elide;
diff --git a/tools/perf/util/strfilter.c b/tools/perf/util/strfilter.c
index 67e4a0082822..3edd0538161f 100644
--- a/tools/perf/util/strfilter.c
+++ b/tools/perf/util/strfilter.c
@@ -62,15 +62,15 @@ static struct strfilter_node *strfilter_node__alloc(const char *op,
 						    struct strfilter_node *l,
 						    struct strfilter_node *r)
 {
-	struct strfilter_node *ret = zalloc(sizeof(struct strfilter_node));
+	struct strfilter_node *node = zalloc(sizeof(*node));
 
-	if (ret) {
-		ret->p = op;
-		ret->l = l;
-		ret->r = r;
+	if (node) {
+		node->p = op;
+		node->l = l;
+		node->r = r;
 	}
 
-	return ret;
+	return node;
 }
 
 static struct strfilter_node *strfilter_node__new(const char *s,
@@ -154,20 +154,20 @@ error:
  */
 struct strfilter *strfilter__new(const char *rules, const char **err)
 {
-	struct strfilter *ret = zalloc(sizeof(struct strfilter));
+	struct strfilter *filter = zalloc(sizeof(*filter));
 	const char *ep = NULL;
 
-	if (ret)
-		ret->root = strfilter_node__new(rules, &ep);
+	if (filter)
+		filter->root = strfilter_node__new(rules, &ep);
 
-	if (!ret || !ret->root || *ep != '\0') {
+	if (!filter || !filter->root || *ep != '\0') {
 		if (err)
 			*err = ep;
-		strfilter__delete(ret);
-		ret = NULL;
+		strfilter__delete(filter);
+		filter = NULL;
 	}
 
-	return ret;
+	return filter;
 }
 
 static bool strfilter_node__compare(struct strfilter_node *node,
@@ -191,9 +191,9 @@ static bool strfilter_node__compare(struct strfilter_node *node,
 }
 
 /* Return true if STR matches the filter rules */
-bool strfilter__compare(struct strfilter *node, const char *str)
+bool strfilter__compare(struct strfilter *filter, const char *str)
 {
-	if (!node)
+	if (!filter)
 		return false;
-	return strfilter_node__compare(node->root, str);
+	return strfilter_node__compare(filter->root, str);
 }
diff --git a/tools/perf/util/strfilter.h b/tools/perf/util/strfilter.h
index 00f58a7506de..fe611f3c9e39 100644
--- a/tools/perf/util/strfilter.h
+++ b/tools/perf/util/strfilter.h
@@ -30,19 +30,19 @@ struct strfilter *strfilter__new(const char *rules, const char **err);
 
 /**
  * strfilter__compare - compare given string and a string filter
- * @self: String filter
+ * @filter: String filter
  * @str: target string
  *
- * Compare @str and @self. Return true if the str match the rule
+ * Compare @str and @filter. Return true if the str match the rule
  */
-bool strfilter__compare(struct strfilter *self, const char *str);
+bool strfilter__compare(struct strfilter *filter, const char *str);
 
 /**
  * strfilter__delete - delete a string filter
- * @self: String filter to delete
+ * @filter: String filter to delete
  *
- * Delete @self.
+ * Delete @filter.
  */
-void strfilter__delete(struct strfilter *self);
+void strfilter__delete(struct strfilter *filter);
 
 #endif
diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index 373c055989ed..897c1b2a750a 100644
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -29,24 +29,24 @@ struct machine;
 struct comm;
 
 struct thread *thread__new(pid_t pid, pid_t tid);
-void thread__delete(struct thread *self);
+void thread__delete(struct thread *thread);
 static inline void thread__exited(struct thread *thread)
 {
 	thread->dead = true;
 }
 
 int thread__set_comm(struct thread *thread, const char *comm, u64 timestamp);
-int thread__comm_len(struct thread *self);
+int thread__comm_len(struct thread *thread);
 struct comm *thread__comm(const struct thread *thread);
 const char *thread__comm_str(const struct thread *thread);
-void thread__insert_map(struct thread *self, struct map *map);
+void thread__insert_map(struct thread *thread, struct map *map);
 int thread__fork(struct thread *thread, struct thread *parent, u64 timestamp);
 size_t thread__fprintf(struct thread *thread, FILE *fp);
 
-static inline struct map *thread__find_map(struct thread *self,
+static inline struct map *thread__find_map(struct thread *thread,
 					   enum map_type type, u64 addr)
 {
-	return self ? map_groups__find(&self->mg, type, addr) : NULL;
+	return thread ? map_groups__find(&thread->mg, type, addr) : NULL;
 }
 
 void thread__find_addr_map(struct thread *thread, struct machine *machine,
-- 
cgit 


From b579035ff766c9412e2b92abf5cab794bff102b6 Mon Sep 17 00:00:00 2001
From: Florent Fourcot <florent.fourcot@enst-bretagne.fr>
Date: Sat, 2 Nov 2013 14:55:07 +0100
Subject: ipv6: remove old conditions on flow label sharing

The code of flow label in Linux Kernel follows
the rules of RFC 1809 (an informational one) for
conditions on flow label sharing. There rules are
not in the last proposed standard for flow label
(RFC 6437), or in the previous one (RFC 3697).

Since this code does not follow any current or
old standard, we can remove it.

With this removal, the ipv6_opt_cmp function is
now a dead code and it can be removed too.

Changelog to v1:
 * add justification for the change
 * remove the condition on IPv6 options

[ Remove ipv6_hdr_cmp and it is now unused as well. -DaveM ]

Signed-off-by: Florent Fourcot <florent.fourcot@enst-bretagne.fr>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/ip6_flowlabel.c | 33 ---------------------------------
 1 file changed, 33 deletions(-)

diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index 46e88433ec7d..819578e92499 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -465,34 +465,6 @@ static int mem_check(struct sock *sk)
 	return 0;
 }
 
-static bool ipv6_hdr_cmp(struct ipv6_opt_hdr *h1, struct ipv6_opt_hdr *h2)
-{
-	if (h1 == h2)
-		return false;
-	if (h1 == NULL || h2 == NULL)
-		return true;
-	if (h1->hdrlen != h2->hdrlen)
-		return true;
-	return memcmp(h1+1, h2+1, ((h1->hdrlen+1)<<3) - sizeof(*h1));
-}
-
-static bool ipv6_opt_cmp(struct ipv6_txoptions *o1, struct ipv6_txoptions *o2)
-{
-	if (o1 == o2)
-		return false;
-	if (o1 == NULL || o2 == NULL)
-		return true;
-	if (o1->opt_nflen != o2->opt_nflen)
-		return true;
-	if (ipv6_hdr_cmp(o1->hopopt, o2->hopopt))
-		return true;
-	if (ipv6_hdr_cmp(o1->dst0opt, o2->dst0opt))
-		return true;
-	if (ipv6_hdr_cmp((struct ipv6_opt_hdr *)o1->srcrt, (struct ipv6_opt_hdr *)o2->srcrt))
-		return true;
-	return false;
-}
-
 static inline void fl_link(struct ipv6_pinfo *np, struct ipv6_fl_socklist *sfl,
 		struct ip6_flowlabel *fl)
 {
@@ -603,11 +575,6 @@ recheck:
 				     uid_eq(fl1->owner.uid, fl->owner.uid)))
 					goto release;
 
-				err = -EINVAL;
-				if (!ipv6_addr_equal(&fl1->dst, &fl->dst) ||
-				    ipv6_opt_cmp(fl1->opt, fl->opt))
-					goto release;
-
 				err = -ENOMEM;
 				if (sfl1 == NULL)
 					goto release;
-- 
cgit 


From f0eb2e5dc06f5e100d59bb49a823f9a294e82db7 Mon Sep 17 00:00:00 2001
From: Felipe Contreras <felipe.contreras@gmail.com>
Date: Tue, 5 Nov 2013 01:20:42 -0600
Subject: ACPI / blacklist: fix name of ThinkPad Edge E530

That is the advertised name.

http://shop.lenovo.com/us/en/laptops/thinkpad/edge-series/e530/

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/blacklist.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index b7fd1aeb6c42..fb848378d582 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -304,7 +304,7 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
 	},
 	{
 	.callback = dmi_disable_osi_win8,
-	.ident = "Lenovo ThinkPad Edge E530",
+	.ident = "ThinkPad Edge E530",
 	.matches = {
 		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 		     DMI_MATCH(DMI_PRODUCT_VERSION, "3259A2G"),
-- 
cgit 


From 2f69702c4db5f1c3149fd17fe30bdeb87cba9698 Mon Sep 17 00:00:00 2001
From: Enrico Mioso <mrkiko.rs@gmail.com>
Date: Mon, 4 Nov 2013 09:50:47 +0100
Subject: net: cdc_ncm: Export cdc_ncm_{tx, rx}_fixup functions for re-use
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Some drivers implementing NCM-like protocols, may re-use those functions, as is
the case in the huawei_cdc_ncm driver.
Export them via EXPORT_SYMBOL_GPL, in accordance with how other functions have
been exported.

Signed-off-by: Enrico Mioso <mrkiko.rs@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c   | 6 ++++--
 include/linux/usb/cdc_ncm.h | 3 +++
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 11c703337577..1763195bd599 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -830,7 +830,7 @@ static void cdc_ncm_txpath_bh(unsigned long param)
 	}
 }
 
-static struct sk_buff *
+struct sk_buff *
 cdc_ncm_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags)
 {
 	struct sk_buff *skb_out;
@@ -857,6 +857,7 @@ error:
 
 	return NULL;
 }
+EXPORT_SYMBOL_GPL(cdc_ncm_tx_fixup);
 
 /* verify NTB header and return offset of first NDP, or negative error */
 int cdc_ncm_rx_verify_nth16(struct cdc_ncm_ctx *ctx, struct sk_buff *skb_in)
@@ -943,7 +944,7 @@ error:
 }
 EXPORT_SYMBOL_GPL(cdc_ncm_rx_verify_ndp16);
 
-static int cdc_ncm_rx_fixup(struct usbnet *dev, struct sk_buff *skb_in)
+int cdc_ncm_rx_fixup(struct usbnet *dev, struct sk_buff *skb_in)
 {
 	struct sk_buff *skb;
 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
@@ -1019,6 +1020,7 @@ err_ndp:
 error:
 	return 0;
 }
+EXPORT_SYMBOL_GPL(cdc_ncm_rx_fixup);
 
 static void
 cdc_ncm_speed_change(struct usbnet *dev,
diff --git a/include/linux/usb/cdc_ncm.h b/include/linux/usb/cdc_ncm.h
index 2300f7492927..c3fa80745996 100644
--- a/include/linux/usb/cdc_ncm.h
+++ b/include/linux/usb/cdc_ncm.h
@@ -125,5 +125,8 @@ void cdc_ncm_unbind(struct usbnet *dev, struct usb_interface *intf);
 struct sk_buff *cdc_ncm_fill_tx_frame(struct usbnet *dev, struct sk_buff *skb, __le32 sign);
 int cdc_ncm_rx_verify_nth16(struct cdc_ncm_ctx *ctx, struct sk_buff *skb_in);
 int cdc_ncm_rx_verify_ndp16(struct sk_buff *skb_in, int ndpoffset);
+struct sk_buff *
+cdc_ncm_tx_fixup(struct usbnet *dev, struct sk_buff *skb, gfp_t flags);
+int cdc_ncm_rx_fixup(struct usbnet *dev, struct sk_buff *skb_in);
 
 #endif /* __LINUX_USB_CDC_NCM_H */
-- 
cgit 


From 41c47d8cfd685cae6b08f9300fef12e602609b26 Mon Sep 17 00:00:00 2001
From: Enrico Mioso <mrkiko.rs@gmail.com>
Date: Mon, 4 Nov 2013 09:50:48 +0100
Subject: net: huawei_cdc_ncm: Introduce the huawei_cdc_ncm driver
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This driver supports devices using the NCM protocol as an encapsulation layer
for other protocols, like the E3131 Huawei 3G modem. This drivers approach was
heavily inspired by the qmi_wwan/cdc_mbim approach & code model.

Signed-off-by: Enrico Mioso <mrkiko.rs@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/Kconfig          |  15 +++
 drivers/net/usb/Makefile         |   1 +
 drivers/net/usb/huawei_cdc_ncm.c | 230 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 246 insertions(+)
 create mode 100644 drivers/net/usb/huawei_cdc_ncm.c

diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
index 40db31233313..85e4a01670f0 100644
--- a/drivers/net/usb/Kconfig
+++ b/drivers/net/usb/Kconfig
@@ -242,6 +242,21 @@ config USB_NET_CDC_NCM
 	    * ST-Ericsson M343 HSPA Mobile Broadband Modem (reference design)
 	    * Ericsson F5521gw Mobile Broadband Module
 
+config USB_NET_HUAWEI_CDC_NCM
+	tristate "Huawei NCM embedded AT channel support"
+	depends on USB_USBNET
+	select USB_WDM
+	select USB_NET_CDC_NCM
+	help
+		This driver supports huawei-style NCM devices, that use NCM as a
+		transport for other protocols, usually an embedded AT channel.
+		Good examples are:
+		* Huawei E3131
+		* Huawei E3251
+
+		To compile this driver as a module, choose M here: the module will be
+		called huawei_cdc_ncm.ko.
+
 config USB_NET_CDC_MBIM
 	tristate "CDC MBIM support"
 	depends on USB_USBNET
diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile
index 8b342cf992fd..b17b5e88bbaf 100644
--- a/drivers/net/usb/Makefile
+++ b/drivers/net/usb/Makefile
@@ -32,6 +32,7 @@ obj-$(CONFIG_USB_IPHETH)	+= ipheth.o
 obj-$(CONFIG_USB_SIERRA_NET)	+= sierra_net.o
 obj-$(CONFIG_USB_NET_CX82310_ETH)	+= cx82310_eth.o
 obj-$(CONFIG_USB_NET_CDC_NCM)	+= cdc_ncm.o
+obj-$(CONFIG_USB_NET_HUAWEI_CDC_NCM)	+= huawei_cdc_ncm.o
 obj-$(CONFIG_USB_VL600)		+= lg-vl600.o
 obj-$(CONFIG_USB_NET_QMI_WWAN)	+= qmi_wwan.o
 obj-$(CONFIG_USB_NET_CDC_MBIM)	+= cdc_mbim.o
diff --git a/drivers/net/usb/huawei_cdc_ncm.c b/drivers/net/usb/huawei_cdc_ncm.c
new file mode 100644
index 000000000000..312178d7b698
--- /dev/null
+++ b/drivers/net/usb/huawei_cdc_ncm.c
@@ -0,0 +1,230 @@
+/* huawei_cdc_ncm.c - handles Huawei devices using the CDC NCM protocol as
+ * transport layer.
+ * Copyright (C) 2013	 Enrico Mioso <mrkiko.rs@gmail.com>
+ *
+ *
+ * ABSTRACT:
+ * This driver handles devices resembling the CDC NCM standard, but
+ * encapsulating another protocol inside it. An example are some Huawei 3G
+ * devices, exposing an embedded AT channel where you can set up the NCM
+ * connection.
+ * This code has been heavily inspired by the cdc_mbim.c driver, which is
+ * Copyright (c) 2012  Smith Micro Software, Inc.
+ * Copyright (c) 2012  Bjørn Mork <bjorn@mork.no>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/ethtool.h>
+#include <linux/if_vlan.h>
+#include <linux/ip.h>
+#include <linux/mii.h>
+#include <linux/usb.h>
+#include <linux/usb/cdc.h>
+#include <linux/usb/usbnet.h>
+#include <linux/usb/cdc-wdm.h>
+#include <linux/usb/cdc_ncm.h>
+
+/* Driver data */
+struct huawei_cdc_ncm_state {
+	struct cdc_ncm_ctx *ctx;
+	atomic_t pmcount;
+	struct usb_driver *subdriver;
+	struct usb_interface *control;
+	struct usb_interface *data;
+};
+
+static int huawei_cdc_ncm_manage_power(struct usbnet *usbnet_dev, int on)
+{
+	struct huawei_cdc_ncm_state *drvstate = (void *)&usbnet_dev->data;
+	int rv;
+
+	if ((on && atomic_add_return(1, &drvstate->pmcount) == 1) ||
+			(!on && atomic_dec_and_test(&drvstate->pmcount))) {
+		rv = usb_autopm_get_interface(usbnet_dev->intf);
+		usbnet_dev->intf->needs_remote_wakeup = on;
+		if (!rv)
+			usb_autopm_put_interface(usbnet_dev->intf);
+	}
+	return 0;
+}
+
+static int huawei_cdc_ncm_wdm_manage_power(struct usb_interface *intf,
+					   int status)
+{
+	struct usbnet *usbnet_dev = usb_get_intfdata(intf);
+
+	/* can be called while disconnecting */
+	if (!usbnet_dev)
+		return 0;
+
+	return huawei_cdc_ncm_manage_power(usbnet_dev, status);
+}
+
+
+static int huawei_cdc_ncm_bind(struct usbnet *usbnet_dev,
+			       struct usb_interface *intf)
+{
+	struct cdc_ncm_ctx *ctx;
+	struct usb_driver *subdriver = ERR_PTR(-ENODEV);
+	int ret = -ENODEV;
+	struct huawei_cdc_ncm_state *drvstate = (void *)&usbnet_dev->data;
+
+	/* altsetting should always be 1 for NCM devices - so we hard-coded
+	 * it here
+	 */
+	ret = cdc_ncm_bind_common(usbnet_dev, intf, 1);
+	if (ret)
+		goto err;
+
+	ctx = drvstate->ctx;
+
+	if (usbnet_dev->status)
+		/* CDC-WMC r1.1 requires wMaxCommand to be "at least 256
+		 * decimal (0x100)"
+		 */
+		subdriver = usb_cdc_wdm_register(ctx->control,
+						 &usbnet_dev->status->desc,
+						 256, /* wMaxCommand */
+						 huawei_cdc_ncm_wdm_manage_power);
+	if (IS_ERR(subdriver)) {
+		ret = PTR_ERR(subdriver);
+		cdc_ncm_unbind(usbnet_dev, intf);
+		goto err;
+	}
+
+	/* Prevent usbnet from using the status descriptor */
+	usbnet_dev->status = NULL;
+
+	drvstate->subdriver = subdriver;
+
+err:
+	return ret;
+}
+
+static void huawei_cdc_ncm_unbind(struct usbnet *usbnet_dev,
+				  struct usb_interface *intf)
+{
+	struct huawei_cdc_ncm_state *drvstate = (void *)&usbnet_dev->data;
+	struct cdc_ncm_ctx *ctx = drvstate->ctx;
+
+	if (drvstate->subdriver && drvstate->subdriver->disconnect)
+		drvstate->subdriver->disconnect(ctx->control);
+	drvstate->subdriver = NULL;
+
+	cdc_ncm_unbind(usbnet_dev, intf);
+}
+
+static int huawei_cdc_ncm_suspend(struct usb_interface *intf,
+				  pm_message_t message)
+{
+	int ret = 0;
+	struct usbnet *usbnet_dev = usb_get_intfdata(intf);
+	struct huawei_cdc_ncm_state *drvstate = (void *)&usbnet_dev->data;
+	struct cdc_ncm_ctx *ctx = drvstate->ctx;
+
+	if (ctx == NULL) {
+		ret = -ENODEV;
+		goto error;
+	}
+
+	ret = usbnet_suspend(intf, message);
+	if (ret < 0)
+		goto error;
+
+	if (intf == ctx->control &&
+		drvstate->subdriver &&
+		drvstate->subdriver->suspend)
+		ret = drvstate->subdriver->suspend(intf, message);
+	if (ret < 0)
+		usbnet_resume(intf);
+
+error:
+	return ret;
+}
+
+static int huawei_cdc_ncm_resume(struct usb_interface *intf)
+{
+	int ret = 0;
+	struct usbnet *usbnet_dev = usb_get_intfdata(intf);
+	struct huawei_cdc_ncm_state *drvstate = (void *)&usbnet_dev->data;
+	bool callsub;
+	struct cdc_ncm_ctx *ctx = drvstate->ctx;
+
+	/* should we call subdriver's resume function? */
+	callsub =
+		(intf == ctx->control &&
+		drvstate->subdriver &&
+		drvstate->subdriver->resume);
+
+	if (callsub)
+		ret = drvstate->subdriver->resume(intf);
+	if (ret < 0)
+		goto err;
+	ret = usbnet_resume(intf);
+	if (ret < 0 && callsub)
+		drvstate->subdriver->suspend(intf, PMSG_SUSPEND);
+err:
+	return ret;
+}
+
+static int huawei_cdc_ncm_check_connect(struct usbnet *usbnet_dev)
+{
+	struct cdc_ncm_ctx *ctx;
+
+	ctx = (struct cdc_ncm_ctx *)usbnet_dev->data[0];
+
+	if (ctx == NULL)
+		return 1; /* disconnected */
+
+	return !ctx->connected;
+}
+
+static const struct driver_info huawei_cdc_ncm_info = {
+	.description = "Huawei CDC NCM device",
+	.flags = FLAG_NO_SETINT | FLAG_MULTI_PACKET | FLAG_WWAN,
+	.bind = huawei_cdc_ncm_bind,
+	.unbind = huawei_cdc_ncm_unbind,
+	.check_connect = huawei_cdc_ncm_check_connect,
+	.manage_power = huawei_cdc_ncm_manage_power,
+	.rx_fixup = cdc_ncm_rx_fixup,
+	.tx_fixup = cdc_ncm_tx_fixup,
+};
+
+static const struct usb_device_id huawei_cdc_ncm_devs[] = {
+	/* Huawei NCM devices disguised as vendor specific */
+	{ USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x16),
+	  .driver_info = (unsigned long)&huawei_cdc_ncm_info,
+	},
+	{ USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x46),
+	  .driver_info = (unsigned long)&huawei_cdc_ncm_info,
+	},
+	{ USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x76),
+	  .driver_info = (unsigned long)&huawei_cdc_ncm_info,
+	},
+
+	/* Terminating entry */
+	{
+	},
+};
+MODULE_DEVICE_TABLE(usb, huawei_cdc_ncm_devs);
+
+static struct usb_driver huawei_cdc_ncm_driver = {
+	.name = "huawei_cdc_ncm",
+	.id_table = huawei_cdc_ncm_devs,
+	.probe = usbnet_probe,
+	.disconnect = usbnet_disconnect,
+	.suspend = huawei_cdc_ncm_suspend,
+	.resume = huawei_cdc_ncm_resume,
+	.reset_resume = huawei_cdc_ncm_resume,
+	.supports_autosuspend = 1,
+	.disable_hub_initiated_lpm = 1,
+};
+module_usb_driver(huawei_cdc_ncm_driver);
+MODULE_AUTHOR("Enrico Mioso <mrkiko.rs@gmail.com>");
+MODULE_DESCRIPTION("USB CDC NCM host driver with encapsulated protocol support");
+MODULE_LICENSE("GPL");
-- 
cgit 


From 9fea037de5f33973d48e8f893a0087c6f9861e7b Mon Sep 17 00:00:00 2001
From: Enrico Mioso <mrkiko.rs@gmail.com>
Date: Mon, 4 Nov 2013 09:50:49 +0100
Subject: net: cdc_ncm: remove non-standard NCM device IDs
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Remove device IDs of NCM-like (but not NCM-conformant) devices, that are
handled by the huawwei_cdc_ncm driver now.

Signed-off-by: Enrico Mioso <mrkiko.rs@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 1763195bd599..f74786aa37be 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -1186,17 +1186,6 @@ static const struct usb_device_id cdc_devs[] = {
 	  .driver_info = (unsigned long)&wwan_info,
 	},
 
-	/* Huawei NCM devices disguised as vendor specific */
-	{ USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x16),
-	  .driver_info = (unsigned long)&wwan_info,
-	},
-	{ USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x46),
-	  .driver_info = (unsigned long)&wwan_info,
-	},
-	{ USB_VENDOR_AND_INTERFACE_INFO(0x12d1, 0xff, 0x02, 0x76),
-	  .driver_info = (unsigned long)&wwan_info,
-	},
-
 	/* Infineon(now Intel) HSPA Modem platform */
 	{ USB_DEVICE_AND_INTERFACE_INFO(0x1519, 0x0443,
 		USB_CLASS_COMM,
-- 
cgit 


From 9cd804ac1f39e10510bf93700f1f7ea66b2e1b38 Mon Sep 17 00:00:00 2001
From: Cody P Schafer <cody@linux.vnet.ibm.com>
Date: Fri, 1 Nov 2013 15:38:46 -0700
Subject: trace/trace_stat: use rbtree postorder iteration helper instead of
 opencoding

Use rbtree_postorder_for_each_entry_safe() to destroy the rbtree instead
of opencoding an alternate postorder iteration that modifies the tree

Link: http://lkml.kernel.org/r/1383345566-25087-2-git-send-email-cody@linux.vnet.ibm.com

Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/trace_stat.c | 41 +++++------------------------------------
 1 file changed, 5 insertions(+), 36 deletions(-)

diff --git a/kernel/trace/trace_stat.c b/kernel/trace/trace_stat.c
index 847f88a6194b..7af67360b330 100644
--- a/kernel/trace/trace_stat.c
+++ b/kernel/trace/trace_stat.c
@@ -43,46 +43,15 @@ static DEFINE_MUTEX(all_stat_sessions_mutex);
 /* The root directory for all stat files */
 static struct dentry		*stat_dir;
 
-/*
- * Iterate through the rbtree using a post order traversal path
- * to release the next node.
- * It won't necessary release one at each iteration
- * but it will at least advance closer to the next one
- * to be released.
- */
-static struct rb_node *release_next(struct tracer_stat *ts,
-				    struct rb_node *node)
+static void __reset_stat_session(struct stat_session *session)
 {
-	struct stat_node *snode;
-	struct rb_node *parent = rb_parent(node);
-
-	if (node->rb_left)
-		return node->rb_left;
-	else if (node->rb_right)
-		return node->rb_right;
-	else {
-		if (!parent)
-			;
-		else if (parent->rb_left == node)
-			parent->rb_left = NULL;
-		else
-			parent->rb_right = NULL;
+	struct stat_node *snode, *n;
 
-		snode = container_of(node, struct stat_node, node);
-		if (ts->stat_release)
-			ts->stat_release(snode->stat);
+	rbtree_postorder_for_each_entry_safe(snode, n, &session->stat_root, node) {
+		if (session->ts->stat_release)
+			session->ts->stat_release(snode->stat);
 		kfree(snode);
-
-		return parent;
 	}
-}
-
-static void __reset_stat_session(struct stat_session *session)
-{
-	struct rb_node *node = session->stat_root.rb_node;
-
-	while (node)
-		node = release_next(session->ts, node);
 
 	session->stat_root = RB_ROOT;
 }
-- 
cgit 


From ab4ead02ec235d706d0611d8741964628291237e Mon Sep 17 00:00:00 2001
From: Kevin Hao <haokexin@gmail.com>
Date: Wed, 23 Oct 2013 20:58:16 +0800
Subject: ftrace/x86: skip over the breakpoint for ftrace caller

In commit 8a4d0a687a59 "ftrace: Use breakpoint method to update ftrace
caller", we choose to use breakpoint method to update the ftrace
caller. But we also need to skip over the breakpoint in function
ftrace_int3_handler() for them. Otherwise weird things would happen.

Cc: stable@vger.kernel.org # 3.5+
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 arch/x86/kernel/ftrace.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/ftrace.c b/arch/x86/kernel/ftrace.c
index 42a392a9fd02..d4bdd253fea7 100644
--- a/arch/x86/kernel/ftrace.c
+++ b/arch/x86/kernel/ftrace.c
@@ -248,6 +248,15 @@ int ftrace_update_ftrace_func(ftrace_func_t func)
 	return ret;
 }
 
+static int is_ftrace_caller(unsigned long ip)
+{
+	if (ip == (unsigned long)(&ftrace_call) ||
+		ip == (unsigned long)(&ftrace_regs_call))
+		return 1;
+
+	return 0;
+}
+
 /*
  * A breakpoint was added to the code address we are about to
  * modify, and this is the handle that will just skip over it.
@@ -257,10 +266,13 @@ int ftrace_update_ftrace_func(ftrace_func_t func)
  */
 int ftrace_int3_handler(struct pt_regs *regs)
 {
+	unsigned long ip;
+
 	if (WARN_ON_ONCE(!regs))
 		return 0;
 
-	if (!ftrace_location(regs->ip - 1))
+	ip = regs->ip - 1;
+	if (!ftrace_location(ip) && !is_ftrace_caller(ip))
 		return 0;
 
 	regs->ip += MCOUNT_INSN_SIZE - 1;
-- 
cgit 


From 9418fb208059d6f916bdb116653e166c5db9456d Mon Sep 17 00:00:00 2001
From: Steven Rostedt <rostedt@goodmis.org>
Date: Mon, 4 Nov 2013 20:27:36 -0500
Subject: rcu: Do not trace rcu_is_watching() functions

As perf uses the rcu_read_lock() primitives for recording into its
ring buffer, perf tracing can not be called when RCU in inactive.
With the perf function tracing, there are functions that can be
traced when RCU is not active, and perf must not have its function
callback called when this is the case.

Luckily, Paul McKenney has created a way to detect when RCU is
active or not with the rcu_is_watching() function. Unfortunately,
this function can also be traced, and if that happens it can cause
a bit of overhead for the perf function calls that do the check.
Recursion protection prevents anything bad from happening, but
there is a bit of added overhead for every function being traced that
must detect that the rcu_is_watching() is also being traced.

As rcu_is_watching() is a helper routine and not part of the
critical logic in RCU, it does not need to be traced in order to
debug RCU itself. Add the "notrace" annotation to all the rcu_is_watching()
calls such that we never trace it.

Link: http://lkml.kernel.org/r/20131104202736.72dd8e45@gandalf.local.home

Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/rcutiny.c | 2 +-
 kernel/rcutree.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c
index 0fa061dfa55d..590c8a82aa00 100644
--- a/kernel/rcutiny.c
+++ b/kernel/rcutiny.c
@@ -179,7 +179,7 @@ EXPORT_SYMBOL_GPL(rcu_irq_enter);
 /*
  * Test whether RCU thinks that the current CPU is idle.
  */
-bool __rcu_is_watching(void)
+bool notrace __rcu_is_watching(void)
 {
 	return rcu_dynticks_nesting;
 }
diff --git a/kernel/rcutree.c b/kernel/rcutree.c
index 981d0c15a389..499bb2b2198c 100644
--- a/kernel/rcutree.c
+++ b/kernel/rcutree.c
@@ -662,7 +662,7 @@ void rcu_nmi_exit(void)
  * rcu_is_watching(), the caller of __rcu_is_watching() must have at
  * least disabled preemption.
  */
-bool __rcu_is_watching(void)
+bool notrace __rcu_is_watching(void)
 {
 	return atomic_read(this_cpu_ptr(&rcu_dynticks.dynticks)) & 0x1;
 }
@@ -673,7 +673,7 @@ bool __rcu_is_watching(void)
  * If the current CPU is in its idle loop and is neither in an interrupt
  * or NMI handler, return true.
  */
-bool rcu_is_watching(void)
+bool notrace rcu_is_watching(void)
 {
 	int ret;
 
-- 
cgit 


From b5aa3a472b6d13d57a7521a663290dea2fb483a7 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Mon, 4 Nov 2013 18:34:44 -0500
Subject: ftrace: Have control op function callback only trace when RCU is
 watching

Dave Jones reported that trinity would be able to trigger the following
back trace:

 ===============================
 [ INFO: suspicious RCU usage. ]
 3.10.0-rc2+ #38 Not tainted
 -------------------------------
 include/linux/rcupdate.h:771 rcu_read_lock() used illegally while idle!
 other info that might help us debug this:

 RCU used illegally from idle CPU!  rcu_scheduler_active = 1, debug_locks = 0
 RCU used illegally from extended quiescent state!
 1 lock held by trinity-child1/18786:
  #0:  (rcu_read_lock){.+.+..}, at: [<ffffffff8113dd48>] __perf_event_overflow+0x108/0x310
 stack backtrace:
 CPU: 3 PID: 18786 Comm: trinity-child1 Not tainted 3.10.0-rc2+ #38
  0000000000000000 ffff88020767bac8 ffffffff816e2f6b ffff88020767baf8
  ffffffff810b5897 ffff88021de92520 0000000000000000 ffff88020767bbf8
  0000000000000000 ffff88020767bb78 ffffffff8113ded4 ffffffff8113dd48
 Call Trace:
  [<ffffffff816e2f6b>] dump_stack+0x19/0x1b
  [<ffffffff810b5897>] lockdep_rcu_suspicious+0xe7/0x120
  [<ffffffff8113ded4>] __perf_event_overflow+0x294/0x310
  [<ffffffff8113dd48>] ? __perf_event_overflow+0x108/0x310
  [<ffffffff81309289>] ? __const_udelay+0x29/0x30
  [<ffffffff81076054>] ? __rcu_read_unlock+0x54/0xa0
  [<ffffffff816f4000>] ? ftrace_call+0x5/0x2f
  [<ffffffff8113dfa1>] perf_swevent_overflow+0x51/0xe0
  [<ffffffff8113e08f>] perf_swevent_event+0x5f/0x90
  [<ffffffff8113e1c9>] perf_tp_event+0x109/0x4f0
  [<ffffffff8113e36f>] ? perf_tp_event+0x2af/0x4f0
  [<ffffffff81074630>] ? __rcu_read_lock+0x20/0x20
  [<ffffffff8112d79f>] perf_ftrace_function_call+0xbf/0xd0
  [<ffffffff8110e1e1>] ? ftrace_ops_control_func+0x181/0x210
  [<ffffffff81074630>] ? __rcu_read_lock+0x20/0x20
  [<ffffffff81100cae>] ? rcu_eqs_enter_common+0x5e/0x470
  [<ffffffff8110e1e1>] ftrace_ops_control_func+0x181/0x210
  [<ffffffff816f4000>] ftrace_call+0x5/0x2f
  [<ffffffff8110e229>] ? ftrace_ops_control_func+0x1c9/0x210
  [<ffffffff816f4000>] ? ftrace_call+0x5/0x2f
  [<ffffffff81074635>] ? debug_lockdep_rcu_enabled+0x5/0x40
  [<ffffffff81074635>] ? debug_lockdep_rcu_enabled+0x5/0x40
  [<ffffffff81100cae>] ? rcu_eqs_enter_common+0x5e/0x470
  [<ffffffff8110112a>] rcu_eqs_enter+0x6a/0xb0
  [<ffffffff81103673>] rcu_user_enter+0x13/0x20
  [<ffffffff8114541a>] user_enter+0x6a/0xd0
  [<ffffffff8100f6d8>] syscall_trace_leave+0x78/0x140
  [<ffffffff816f46af>] int_check_syscall_exit_work+0x34/0x3d
 ------------[ cut here ]------------

Perf uses rcu_read_lock() but as the function tracer can trace functions
even when RCU is not currently active, this makes the rcu_read_lock()
used by perf ineffective.

As perf is currently the only user of the ftrace_ops_control_func() and
perf is also the only function callback that actively uses rcu_read_lock(),
the quick fix is to prevent the ftrace_ops_control_func() from calling
its callbacks if RCU is not active.

With Paul's new "rcu_is_watching()" we can tell if RCU is active or not.

Reported-by: Dave Jones <davej@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/ftrace.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 44e826a79665..080b7d41e17f 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -4388,12 +4388,21 @@ ftrace_ops_control_func(unsigned long ip, unsigned long parent_ip,
 	 */
 	preempt_disable_notrace();
 	trace_recursion_set(TRACE_CONTROL_BIT);
+
+	/*
+	 * Control funcs (perf) uses RCU. Only trace if
+	 * RCU is currently active.
+	 */
+	if (!rcu_is_watching())
+		goto out;
+
 	do_for_each_ftrace_op(op, ftrace_control_list) {
 		if (!(op->flags & FTRACE_OPS_FL_STUB) &&
 		    !ftrace_function_local_disabled(op) &&
 		    ftrace_ops_test(op, ip, regs))
 			op->func(ip, parent_ip, op, regs);
 	} while_for_each_ftrace_op(op);
+ out:
 	trace_recursion_clear(TRACE_CONTROL_BIT);
 	preempt_enable_notrace();
 }
-- 
cgit 


From f02b625d0341519238ab3d9cc8706ff4bd45fb89 Mon Sep 17 00:00:00 2001
From: Jamie Iles <jamie.iles@oracle.com>
Date: Tue, 5 Nov 2013 10:42:09 +0000
Subject: recordmcount.pl: Add support for __fentry__

With gcc 4.6.0 the -mfentry feature places the function profiling call
at the start of the function. When this is used, the call is to
__fentry__ and not mcount.  This is required for Ksplice as the C
version of recordmcount doesn't insert section symbols for the
__mcount_loc section so we fall back to the perl version.

Based on 48bb5dc6cd9d30fe0d594947563da1f8bd9abada (ftrace: Make
recordmcount.c handle __fentry__).
Link: http://lkml.kernel.org/r/1383648129-10724-1-git-send-email-jamie.iles@oracle.com

Signed-off-by: Jamie Iles <jamie.iles@oracle.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 scripts/recordmcount.pl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index a674fd5507c1..d0da66396f62 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -214,13 +214,13 @@ $local_regex = "^[0-9a-fA-F]+\\s+t\\s+(\\S+)";
 $weak_regex = "^[0-9a-fA-F]+\\s+([wW])\\s+(\\S+)";
 $section_regex = "Disassembly of section\\s+(\\S+):";
 $function_regex = "^([0-9a-fA-F]+)\\s+<(.*?)>:";
-$mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount\$";
+$mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s(mcount|__fentry__)\$";
 $section_type = '@progbits';
 $mcount_adjust = 0;
 $type = ".long";
 
 if ($arch eq "x86_64") {
-    $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\smcount([+-]0x[0-9a-zA-Z]+)?\$";
+    $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s(mcount|__fentry__)([+-]0x[0-9a-zA-Z]+)?\$";
     $type = ".quad";
     $alignment = 8;
     $mcount_adjust = -1;
-- 
cgit 


From f306cc82a93d6b19f01634b80c580b9755c8b7cc Mon Sep 17 00:00:00 2001
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 24 Oct 2013 08:34:17 -0500
Subject: tracing: Update event filters for multibuffer

The trace event filters are still tied to event calls rather than
event files, which means you don't get what you'd expect when using
filters in the multibuffer case:

Before:

  # echo 'bytes_alloc > 8192' > /sys/kernel/debug/tracing/events/kmem/kmalloc/filter
  # cat /sys/kernel/debug/tracing/events/kmem/kmalloc/filter
  bytes_alloc > 8192
  # mkdir /sys/kernel/debug/tracing/instances/test1
  # echo 'bytes_alloc > 2048' > /sys/kernel/debug/tracing/instances/test1/events/kmem/kmalloc/filter
  # cat /sys/kernel/debug/tracing/events/kmem/kmalloc/filter
  bytes_alloc > 2048
  # cat /sys/kernel/debug/tracing/instances/test1/events/kmem/kmalloc/filter
  bytes_alloc > 2048

Setting the filter in tracing/instances/test1/events shouldn't affect
the same event in tracing/events as it does above.

After:

  # echo 'bytes_alloc > 8192' > /sys/kernel/debug/tracing/events/kmem/kmalloc/filter
  # cat /sys/kernel/debug/tracing/events/kmem/kmalloc/filter
  bytes_alloc > 8192
  # mkdir /sys/kernel/debug/tracing/instances/test1
  # echo 'bytes_alloc > 2048' > /sys/kernel/debug/tracing/instances/test1/events/kmem/kmalloc/filter
  # cat /sys/kernel/debug/tracing/events/kmem/kmalloc/filter
  bytes_alloc > 8192
  # cat /sys/kernel/debug/tracing/instances/test1/events/kmem/kmalloc/filter
  bytes_alloc > 2048

We'd like to just move the filter directly from ftrace_event_call to
ftrace_event_file, but there are a couple cases that don't yet have
multibuffer support and therefore have to continue using the current
event_call-based filters.  For those cases, a new USE_CALL_FILTER bit
is added to the event_call flags, whose main purpose is to keep the
old behavior for those cases until they can be updated with
multibuffer support; at that point, the USE_CALL_FILTER flag (and the
new associated call_filter_check_discard() function) can go away.

The multibuffer support also made filter_current_check_discard()
redundant, so this change removes that function as well and replaces
it with filter_check_discard() (or call_filter_check_discard() as
appropriate).

Link: http://lkml.kernel.org/r/f16e9ce4270c62f46b2e966119225e1c3cca7e60.1382620672.git.tom.zanussi@linux.intel.com

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 include/linux/ftrace_event.h         |  25 +++-
 include/linux/syscalls.h             |   4 +-
 include/trace/ftrace.h               |   7 +-
 kernel/trace/trace.c                 |  40 +++++--
 kernel/trace/trace.h                 |  18 +--
 kernel/trace/trace_branch.c          |   2 +-
 kernel/trace/trace_events.c          |  23 ++--
 kernel/trace/trace_events_filter.c   | 218 ++++++++++++++++++++++++++++-------
 kernel/trace/trace_export.c          |   2 +-
 kernel/trace/trace_functions_graph.c |   4 +-
 kernel/trace/trace_kprobe.c          |   4 +-
 kernel/trace/trace_mmiotrace.c       |   4 +-
 kernel/trace/trace_sched_switch.c    |   4 +-
 kernel/trace/trace_syscalls.c        |   8 +-
 kernel/trace/trace_uprobe.c          |   3 +-
 15 files changed, 264 insertions(+), 102 deletions(-)

diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 5eaa746735ff..9abbe630c456 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -202,6 +202,7 @@ enum {
 	TRACE_EVENT_FL_NO_SET_FILTER_BIT,
 	TRACE_EVENT_FL_IGNORE_ENABLE_BIT,
 	TRACE_EVENT_FL_WAS_ENABLED_BIT,
+	TRACE_EVENT_FL_USE_CALL_FILTER_BIT,
 };
 
 /*
@@ -213,6 +214,7 @@ enum {
  *  WAS_ENABLED   - Set and stays set when an event was ever enabled
  *                    (used for module unloading, if a module event is enabled,
  *                     it is best to clear the buffers that used it).
+ *  USE_CALL_FILTER - For ftrace internal events, don't use file filter
  */
 enum {
 	TRACE_EVENT_FL_FILTERED		= (1 << TRACE_EVENT_FL_FILTERED_BIT),
@@ -220,6 +222,7 @@ enum {
 	TRACE_EVENT_FL_NO_SET_FILTER	= (1 << TRACE_EVENT_FL_NO_SET_FILTER_BIT),
 	TRACE_EVENT_FL_IGNORE_ENABLE	= (1 << TRACE_EVENT_FL_IGNORE_ENABLE_BIT),
 	TRACE_EVENT_FL_WAS_ENABLED	= (1 << TRACE_EVENT_FL_WAS_ENABLED_BIT),
+	TRACE_EVENT_FL_USE_CALL_FILTER	= (1 << TRACE_EVENT_FL_USE_CALL_FILTER_BIT),
 };
 
 struct ftrace_event_call {
@@ -238,6 +241,7 @@ struct ftrace_event_call {
 	 *   bit 2:		failed to apply filter
 	 *   bit 3:		ftrace internal event (do not enable)
 	 *   bit 4:		Event was enabled by module
+	 *   bit 5:		use call filter rather than file filter
 	 */
 	int			flags; /* static flags of different events */
 
@@ -253,6 +257,8 @@ struct ftrace_subsystem_dir;
 enum {
 	FTRACE_EVENT_FL_ENABLED_BIT,
 	FTRACE_EVENT_FL_RECORDED_CMD_BIT,
+	FTRACE_EVENT_FL_FILTERED_BIT,
+	FTRACE_EVENT_FL_NO_SET_FILTER_BIT,
 	FTRACE_EVENT_FL_SOFT_MODE_BIT,
 	FTRACE_EVENT_FL_SOFT_DISABLED_BIT,
 };
@@ -261,6 +267,8 @@ enum {
  * Ftrace event file flags:
  *  ENABLED	  - The event is enabled
  *  RECORDED_CMD  - The comms should be recorded at sched_switch
+ *  FILTERED	  - The event has a filter attached
+ *  NO_SET_FILTER - Set when filter has error and is to be ignored
  *  SOFT_MODE     - The event is enabled/disabled by SOFT_DISABLED
  *  SOFT_DISABLED - When set, do not trace the event (even though its
  *                   tracepoint may be enabled)
@@ -268,6 +276,8 @@ enum {
 enum {
 	FTRACE_EVENT_FL_ENABLED		= (1 << FTRACE_EVENT_FL_ENABLED_BIT),
 	FTRACE_EVENT_FL_RECORDED_CMD	= (1 << FTRACE_EVENT_FL_RECORDED_CMD_BIT),
+	FTRACE_EVENT_FL_FILTERED	= (1 << FTRACE_EVENT_FL_FILTERED_BIT),
+	FTRACE_EVENT_FL_NO_SET_FILTER	= (1 << FTRACE_EVENT_FL_NO_SET_FILTER_BIT),
 	FTRACE_EVENT_FL_SOFT_MODE	= (1 << FTRACE_EVENT_FL_SOFT_MODE_BIT),
 	FTRACE_EVENT_FL_SOFT_DISABLED	= (1 << FTRACE_EVENT_FL_SOFT_DISABLED_BIT),
 };
@@ -275,6 +285,7 @@ enum {
 struct ftrace_event_file {
 	struct list_head		list;
 	struct ftrace_event_call	*event_call;
+	struct event_filter		*filter;
 	struct dentry			*dir;
 	struct trace_array		*tr;
 	struct ftrace_subsystem_dir	*system;
@@ -310,12 +321,16 @@ struct ftrace_event_file {
 
 #define MAX_FILTER_STR_VAL	256	/* Should handle KSYM_SYMBOL_LEN */
 
-extern void destroy_preds(struct ftrace_event_call *call);
+extern void destroy_preds(struct ftrace_event_file *file);
+extern void destroy_call_preds(struct ftrace_event_call *call);
 extern int filter_match_preds(struct event_filter *filter, void *rec);
-extern int filter_current_check_discard(struct ring_buffer *buffer,
-					struct ftrace_event_call *call,
-					void *rec,
-					struct ring_buffer_event *event);
+
+extern int filter_check_discard(struct ftrace_event_file *file, void *rec,
+				struct ring_buffer *buffer,
+				struct ring_buffer_event *event);
+extern int call_filter_check_discard(struct ftrace_event_call *call, void *rec,
+				     struct ring_buffer *buffer,
+				     struct ring_buffer_event *event);
 
 enum {
 	FILTER_OTHER = 0,
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 7fac04e7ff6e..10bafa97049d 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -120,7 +120,7 @@ extern struct trace_event_functions exit_syscall_print_funcs;
 		.class			= &event_class_syscall_enter,	\
 		.event.funcs            = &enter_syscall_print_funcs,	\
 		.data			= (void *)&__syscall_meta_##sname,\
-		.flags			= TRACE_EVENT_FL_CAP_ANY,	\
+		.flags			= TRACE_EVENT_FL_CAP_ANY | TRACE_EVENT_FL_USE_CALL_FILTER,\
 	};								\
 	static struct ftrace_event_call __used				\
 	  __attribute__((section("_ftrace_events")))			\
@@ -134,7 +134,7 @@ extern struct trace_event_functions exit_syscall_print_funcs;
 		.class			= &event_class_syscall_exit,	\
 		.event.funcs		= &exit_syscall_print_funcs,	\
 		.data			= (void *)&__syscall_meta_##sname,\
-		.flags			= TRACE_EVENT_FL_CAP_ANY,	\
+		.flags			= TRACE_EVENT_FL_CAP_ANY | TRACE_EVENT_FL_USE_CALL_FILTER,\
 	};								\
 	static struct ftrace_event_call __used				\
 	  __attribute__((section("_ftrace_events")))			\
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 5c7ab17cbb02..52594b20179e 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -437,9 +437,8 @@ static inline notrace int ftrace_get_offsets_##call(			\
  *	{ <assign>; }  <-- Here we assign the entries by the __field and
  *			   __array macros.
  *
- *	if (!filter_current_check_discard(buffer, event_call, entry, event))
- *		trace_nowake_buffer_unlock_commit(buffer,
- *						   event, irq_flags, pc);
+ *	if (!filter_check_discard(ftrace_file, entry, buffer, event))
+ *		trace_buffer_unlock_commit(buffer, event, irq_flags, pc);
  * }
  *
  * static struct trace_event ftrace_event_type_<call> = {
@@ -553,7 +552,7 @@ ftrace_raw_event_##call(void *__data, proto)				\
 									\
 	{ assign; }							\
 									\
-	if (!filter_current_check_discard(buffer, event_call, entry, event)) \
+	if (!filter_check_discard(ftrace_file, entry, buffer, event))	\
 		trace_buffer_unlock_commit(buffer, event, irq_flags, pc); \
 }
 /*
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 063a92bad578..489da8b19f30 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -235,13 +235,33 @@ void trace_array_put(struct trace_array *this_tr)
 	mutex_unlock(&trace_types_lock);
 }
 
-int filter_current_check_discard(struct ring_buffer *buffer,
-				 struct ftrace_event_call *call, void *rec,
-				 struct ring_buffer_event *event)
+int filter_check_discard(struct ftrace_event_file *file, void *rec,
+			 struct ring_buffer *buffer,
+			 struct ring_buffer_event *event)
 {
-	return filter_check_discard(call, rec, buffer, event);
+	if (unlikely(file->flags & FTRACE_EVENT_FL_FILTERED) &&
+	    !filter_match_preds(file->filter, rec)) {
+		ring_buffer_discard_commit(buffer, event);
+		return 1;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(filter_check_discard);
+
+int call_filter_check_discard(struct ftrace_event_call *call, void *rec,
+			      struct ring_buffer *buffer,
+			      struct ring_buffer_event *event)
+{
+	if (unlikely(call->flags & TRACE_EVENT_FL_FILTERED) &&
+	    !filter_match_preds(call->filter, rec)) {
+		ring_buffer_discard_commit(buffer, event);
+		return 1;
+	}
+
+	return 0;
 }
-EXPORT_SYMBOL_GPL(filter_current_check_discard);
+EXPORT_SYMBOL_GPL(call_filter_check_discard);
 
 cycle_t buffer_ftrace_now(struct trace_buffer *buf, int cpu)
 {
@@ -1633,7 +1653,7 @@ trace_function(struct trace_array *tr,
 	entry->ip			= ip;
 	entry->parent_ip		= parent_ip;
 
-	if (!filter_check_discard(call, entry, buffer, event))
+	if (!call_filter_check_discard(call, entry, buffer, event))
 		__buffer_unlock_commit(buffer, event);
 }
 
@@ -1717,7 +1737,7 @@ static void __ftrace_trace_stack(struct ring_buffer *buffer,
 
 	entry->size = trace.nr_entries;
 
-	if (!filter_check_discard(call, entry, buffer, event))
+	if (!call_filter_check_discard(call, entry, buffer, event))
 		__buffer_unlock_commit(buffer, event);
 
  out:
@@ -1819,7 +1839,7 @@ ftrace_trace_userstack(struct ring_buffer *buffer, unsigned long flags, int pc)
 	trace.entries		= entry->caller;
 
 	save_stack_trace_user(&trace);
-	if (!filter_check_discard(call, entry, buffer, event))
+	if (!call_filter_check_discard(call, entry, buffer, event))
 		__buffer_unlock_commit(buffer, event);
 
  out_drop_count:
@@ -2011,7 +2031,7 @@ int trace_vbprintk(unsigned long ip, const char *fmt, va_list args)
 	entry->fmt			= fmt;
 
 	memcpy(entry->buf, tbuffer, sizeof(u32) * len);
-	if (!filter_check_discard(call, entry, buffer, event)) {
+	if (!call_filter_check_discard(call, entry, buffer, event)) {
 		__buffer_unlock_commit(buffer, event);
 		ftrace_trace_stack(buffer, flags, 6, pc);
 	}
@@ -2066,7 +2086,7 @@ __trace_array_vprintk(struct ring_buffer *buffer,
 
 	memcpy(&entry->buf, tbuffer, len);
 	entry->buf[len] = '\0';
-	if (!filter_check_discard(call, entry, buffer, event)) {
+	if (!call_filter_check_discard(call, entry, buffer, event)) {
 		__buffer_unlock_commit(buffer, event);
 		ftrace_trace_stack(buffer, flags, 6, pc);
 	}
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index d1cf5159bec0..12d1a612a73e 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -1007,9 +1007,9 @@ struct filter_pred {
 
 extern enum regex_type
 filter_parse_regex(char *buff, int len, char **search, int *not);
-extern void print_event_filter(struct ftrace_event_call *call,
+extern void print_event_filter(struct ftrace_event_file *file,
 			       struct trace_seq *s);
-extern int apply_event_filter(struct ftrace_event_call *call,
+extern int apply_event_filter(struct ftrace_event_file *file,
 			      char *filter_string);
 extern int apply_subsystem_event_filter(struct ftrace_subsystem_dir *dir,
 					char *filter_string);
@@ -1020,20 +1020,6 @@ extern int filter_assign_type(const char *type);
 struct ftrace_event_field *
 trace_find_event_field(struct ftrace_event_call *call, char *name);
 
-static inline int
-filter_check_discard(struct ftrace_event_call *call, void *rec,
-		     struct ring_buffer *buffer,
-		     struct ring_buffer_event *event)
-{
-	if (unlikely(call->flags & TRACE_EVENT_FL_FILTERED) &&
-	    !filter_match_preds(call->filter, rec)) {
-		ring_buffer_discard_commit(buffer, event);
-		return 1;
-	}
-
-	return 0;
-}
-
 extern void trace_event_enable_cmd_record(bool enable);
 extern int event_trace_add_tracer(struct dentry *parent, struct trace_array *tr);
 extern int event_trace_del_tracer(struct trace_array *tr);
diff --git a/kernel/trace/trace_branch.c b/kernel/trace/trace_branch.c
index d594da0dc03c..697fb9bac8f0 100644
--- a/kernel/trace/trace_branch.c
+++ b/kernel/trace/trace_branch.c
@@ -78,7 +78,7 @@ probe_likely_condition(struct ftrace_branch_data *f, int val, int expect)
 	entry->line = f->line;
 	entry->correct = val == expect;
 
-	if (!filter_check_discard(call, entry, buffer, event))
+	if (!call_filter_check_discard(call, entry, buffer, event))
 		__buffer_unlock_commit(buffer, event);
 
  out:
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 368a4d50cc30..043f833246a0 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -989,7 +989,7 @@ static ssize_t
 event_filter_read(struct file *filp, char __user *ubuf, size_t cnt,
 		  loff_t *ppos)
 {
-	struct ftrace_event_call *call;
+	struct ftrace_event_file *file;
 	struct trace_seq *s;
 	int r = -ENODEV;
 
@@ -1004,12 +1004,12 @@ event_filter_read(struct file *filp, char __user *ubuf, size_t cnt,
 	trace_seq_init(s);
 
 	mutex_lock(&event_mutex);
-	call = event_file_data(filp);
-	if (call)
-		print_event_filter(call, s);
+	file = event_file_data(filp);
+	if (file)
+		print_event_filter(file, s);
 	mutex_unlock(&event_mutex);
 
-	if (call)
+	if (file)
 		r = simple_read_from_buffer(ubuf, cnt, ppos, s->buffer, s->len);
 
 	kfree(s);
@@ -1021,7 +1021,7 @@ static ssize_t
 event_filter_write(struct file *filp, const char __user *ubuf, size_t cnt,
 		   loff_t *ppos)
 {
-	struct ftrace_event_call *call;
+	struct ftrace_event_file *file;
 	char *buf;
 	int err = -ENODEV;
 
@@ -1039,9 +1039,9 @@ event_filter_write(struct file *filp, const char __user *ubuf, size_t cnt,
 	buf[cnt] = '\0';
 
 	mutex_lock(&event_mutex);
-	call = event_file_data(filp);
-	if (call)
-		err = apply_event_filter(call, buf);
+	file = event_file_data(filp);
+	if (file)
+		err = apply_event_filter(file, buf);
 	mutex_unlock(&event_mutex);
 
 	free_page((unsigned long) buf);
@@ -1539,7 +1539,7 @@ event_create_dir(struct dentry *parent, struct ftrace_event_file *file)
 			return -1;
 		}
 	}
-	trace_create_file("filter", 0644, file->dir, call,
+	trace_create_file("filter", 0644, file->dir, file,
 			  &ftrace_event_filter_fops);
 
 	trace_create_file("format", 0444, file->dir, call,
@@ -1577,6 +1577,7 @@ static void event_remove(struct ftrace_event_call *call)
 		if (file->event_call != call)
 			continue;
 		ftrace_event_enable_disable(file, 0);
+		destroy_preds(file);
 		/*
 		 * The do_for_each_event_file() is
 		 * a double loop. After finding the call for this
@@ -1700,7 +1701,7 @@ static void __trace_remove_event_call(struct ftrace_event_call *call)
 {
 	event_remove(call);
 	trace_destroy_fields(call);
-	destroy_preds(call);
+	destroy_call_preds(call);
 }
 
 static int probe_remove_event_call(struct ftrace_event_call *call)
diff --git a/kernel/trace/trace_events_filter.c b/kernel/trace/trace_events_filter.c
index 97daa8cf958d..2468f56dc5db 100644
--- a/kernel/trace/trace_events_filter.c
+++ b/kernel/trace/trace_events_filter.c
@@ -637,10 +637,18 @@ static void append_filter_err(struct filter_parse_state *ps,
 	free_page((unsigned long) buf);
 }
 
+static inline struct event_filter *event_filter(struct ftrace_event_file *file)
+{
+	if (file->event_call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
+		return file->event_call->filter;
+	else
+		return file->filter;
+}
+
 /* caller must hold event_mutex */
-void print_event_filter(struct ftrace_event_call *call, struct trace_seq *s)
+void print_event_filter(struct ftrace_event_file *file, struct trace_seq *s)
 {
-	struct event_filter *filter = call->filter;
+	struct event_filter *filter = event_filter(file);
 
 	if (filter && filter->filter_string)
 		trace_seq_printf(s, "%s\n", filter->filter_string);
@@ -766,11 +774,21 @@ static void __free_preds(struct event_filter *filter)
 	filter->n_preds = 0;
 }
 
-static void filter_disable(struct ftrace_event_call *call)
+static void call_filter_disable(struct ftrace_event_call *call)
 {
 	call->flags &= ~TRACE_EVENT_FL_FILTERED;
 }
 
+static void filter_disable(struct ftrace_event_file *file)
+{
+	struct ftrace_event_call *call = file->event_call;
+
+	if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
+		call_filter_disable(call);
+	else
+		file->flags &= ~FTRACE_EVENT_FL_FILTERED;
+}
+
 static void __free_filter(struct event_filter *filter)
 {
 	if (!filter)
@@ -781,16 +799,30 @@ static void __free_filter(struct event_filter *filter)
 	kfree(filter);
 }
 
+void destroy_call_preds(struct ftrace_event_call *call)
+{
+	__free_filter(call->filter);
+	call->filter = NULL;
+}
+
+static void destroy_file_preds(struct ftrace_event_file *file)
+{
+	__free_filter(file->filter);
+	file->filter = NULL;
+}
+
 /*
- * Called when destroying the ftrace_event_call.
- * The call is being freed, so we do not need to worry about
- * the call being currently used. This is for module code removing
+ * Called when destroying the ftrace_event_file.
+ * The file is being freed, so we do not need to worry about
+ * the file being currently used. This is for module code removing
  * the tracepoints from within it.
  */
-void destroy_preds(struct ftrace_event_call *call)
+void destroy_preds(struct ftrace_event_file *file)
 {
-	__free_filter(call->filter);
-	call->filter = NULL;
+	if (file->event_call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
+		destroy_call_preds(file->event_call);
+	else
+		destroy_file_preds(file);
 }
 
 static struct event_filter *__alloc_filter(void)
@@ -825,28 +857,56 @@ static int __alloc_preds(struct event_filter *filter, int n_preds)
 	return 0;
 }
 
-static void filter_free_subsystem_preds(struct event_subsystem *system)
+static inline void __remove_filter(struct ftrace_event_file *file)
 {
+	struct ftrace_event_call *call = file->event_call;
+
+	filter_disable(file);
+	if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
+		remove_filter_string(call->filter);
+	else
+		remove_filter_string(file->filter);
+}
+
+static void filter_free_subsystem_preds(struct event_subsystem *system,
+					struct trace_array *tr)
+{
+	struct ftrace_event_file *file;
 	struct ftrace_event_call *call;
 
-	list_for_each_entry(call, &ftrace_events, list) {
+	list_for_each_entry(file, &tr->events, list) {
+		call = file->event_call;
 		if (strcmp(call->class->system, system->name) != 0)
 			continue;
 
-		filter_disable(call);
-		remove_filter_string(call->filter);
+		__remove_filter(file);
 	}
 }
 
-static void filter_free_subsystem_filters(struct event_subsystem *system)
+static inline void __free_subsystem_filter(struct ftrace_event_file *file)
 {
+	struct ftrace_event_call *call = file->event_call;
+
+	if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER) {
+		__free_filter(call->filter);
+		call->filter = NULL;
+	} else {
+		__free_filter(file->filter);
+		file->filter = NULL;
+	}
+}
+
+static void filter_free_subsystem_filters(struct event_subsystem *system,
+					  struct trace_array *tr)
+{
+	struct ftrace_event_file *file;
 	struct ftrace_event_call *call;
 
-	list_for_each_entry(call, &ftrace_events, list) {
+	list_for_each_entry(file, &tr->events, list) {
+		call = file->event_call;
 		if (strcmp(call->class->system, system->name) != 0)
 			continue;
-		__free_filter(call->filter);
-		call->filter = NULL;
+		__free_subsystem_filter(file);
 	}
 }
 
@@ -1617,15 +1677,85 @@ fail:
 	return err;
 }
 
+static inline void event_set_filtered_flag(struct ftrace_event_file *file)
+{
+	struct ftrace_event_call *call = file->event_call;
+
+	if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
+		call->flags |= TRACE_EVENT_FL_FILTERED;
+	else
+		file->flags |= FTRACE_EVENT_FL_FILTERED;
+}
+
+static inline void event_set_filter(struct ftrace_event_file *file,
+				    struct event_filter *filter)
+{
+	struct ftrace_event_call *call = file->event_call;
+
+	if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
+		rcu_assign_pointer(call->filter, filter);
+	else
+		rcu_assign_pointer(file->filter, filter);
+}
+
+static inline void event_clear_filter(struct ftrace_event_file *file)
+{
+	struct ftrace_event_call *call = file->event_call;
+
+	if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
+		RCU_INIT_POINTER(call->filter, NULL);
+	else
+		RCU_INIT_POINTER(file->filter, NULL);
+}
+
+static inline void
+event_set_no_set_filter_flag(struct ftrace_event_file *file)
+{
+	struct ftrace_event_call *call = file->event_call;
+
+	if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
+		call->flags |= TRACE_EVENT_FL_NO_SET_FILTER;
+	else
+		file->flags |= FTRACE_EVENT_FL_NO_SET_FILTER;
+}
+
+static inline void
+event_clear_no_set_filter_flag(struct ftrace_event_file *file)
+{
+	struct ftrace_event_call *call = file->event_call;
+
+	if (call->flags & TRACE_EVENT_FL_USE_CALL_FILTER)
+		call->flags &= ~TRACE_EVENT_FL_NO_SET_FILTER;
+	else
+		file->flags &= ~FTRACE_EVENT_FL_NO_SET_FILTER;
+}
+
+static inline bool
+event_no_set_filter_flag(struct ftrace_event_file *file)
+{
+	struct ftrace_event_call *call = file->event_call;
+
+	if (file->flags & FTRACE_EVENT_FL_NO_SET_FILTER)
+		return true;
+
+	if ((call->flags & TRACE_EVENT_FL_USE_CALL_FILTER) &&
+	    (call->flags & TRACE_EVENT_FL_NO_SET_FILTER))
+		return true;
+
+	return false;
+}
+
 struct filter_list {
 	struct list_head	list;
 	struct event_filter	*filter;
 };
 
 static int replace_system_preds(struct event_subsystem *system,
+				struct trace_array *tr,
 				struct filter_parse_state *ps,
 				char *filter_string)
 {
+	struct ftrace_event_file *file;
 	struct ftrace_event_call *call;
 	struct filter_list *filter_item;
 	struct filter_list *tmp;
@@ -1633,8 +1763,8 @@ static int replace_system_preds(struct event_subsystem *system,
 	bool fail = true;
 	int err;
 
-	list_for_each_entry(call, &ftrace_events, list) {
-
+	list_for_each_entry(file, &tr->events, list) {
+		call = file->event_call;
 		if (strcmp(call->class->system, system->name) != 0)
 			continue;
 
@@ -1644,18 +1774,20 @@ static int replace_system_preds(struct event_subsystem *system,
 		 */
 		err = replace_preds(call, NULL, ps, filter_string, true);
 		if (err)
-			call->flags |= TRACE_EVENT_FL_NO_SET_FILTER;
+			event_set_no_set_filter_flag(file);
 		else
-			call->flags &= ~TRACE_EVENT_FL_NO_SET_FILTER;
+			event_clear_no_set_filter_flag(file);
 	}
 
-	list_for_each_entry(call, &ftrace_events, list) {
+	list_for_each_entry(file, &tr->events, list) {
 		struct event_filter *filter;
 
+		call = file->event_call;
+
 		if (strcmp(call->class->system, system->name) != 0)
 			continue;
 
-		if (call->flags & TRACE_EVENT_FL_NO_SET_FILTER)
+		if (event_no_set_filter_flag(file))
 			continue;
 
 		filter_item = kzalloc(sizeof(*filter_item), GFP_KERNEL);
@@ -1676,17 +1808,17 @@ static int replace_system_preds(struct event_subsystem *system,
 
 		err = replace_preds(call, filter, ps, filter_string, false);
 		if (err) {
-			filter_disable(call);
+			filter_disable(file);
 			parse_error(ps, FILT_ERR_BAD_SUBSYS_FILTER, 0);
 			append_filter_err(ps, filter);
 		} else
-			call->flags |= TRACE_EVENT_FL_FILTERED;
+			event_set_filtered_flag(file);
 		/*
 		 * Regardless of if this returned an error, we still
 		 * replace the filter for the call.
 		 */
-		filter = call->filter;
-		rcu_assign_pointer(call->filter, filter_item->filter);
+		filter = event_filter(file);
+		event_set_filter(file, filter_item->filter);
 		filter_item->filter = filter;
 
 		fail = false;
@@ -1816,6 +1948,7 @@ static int create_filter(struct ftrace_event_call *call,
  * and always remembers @filter_str.
  */
 static int create_system_filter(struct event_subsystem *system,
+				struct trace_array *tr,
 				char *filter_str, struct event_filter **filterp)
 {
 	struct event_filter *filter = NULL;
@@ -1824,7 +1957,7 @@ static int create_system_filter(struct event_subsystem *system,
 
 	err = create_filter_start(filter_str, true, &ps, &filter);
 	if (!err) {
-		err = replace_system_preds(system, ps, filter_str);
+		err = replace_system_preds(system, tr, ps, filter_str);
 		if (!err) {
 			/* System filters just show a default message */
 			kfree(filter->filter_string);
@@ -1840,20 +1973,25 @@ static int create_system_filter(struct event_subsystem *system,
 }
 
 /* caller must hold event_mutex */
-int apply_event_filter(struct ftrace_event_call *call, char *filter_string)
+int apply_event_filter(struct ftrace_event_file *file, char *filter_string)
 {
+	struct ftrace_event_call *call = file->event_call;
 	struct event_filter *filter;
 	int err;
 
 	if (!strcmp(strstrip(filter_string), "0")) {
-		filter_disable(call);
-		filter = call->filter;
+		filter_disable(file);
+		filter = event_filter(file);
+
 		if (!filter)
 			return 0;
-		RCU_INIT_POINTER(call->filter, NULL);
+
+		event_clear_filter(file);
+
 		/* Make sure the filter is not being used */
 		synchronize_sched();
 		__free_filter(filter);
+
 		return 0;
 	}
 
@@ -1866,14 +2004,15 @@ int apply_event_filter(struct ftrace_event_call *call, char *filter_string)
 	 * string
 	 */
 	if (filter) {
-		struct event_filter *tmp = call->filter;
+		struct event_filter *tmp;
 
+		tmp = event_filter(file);
 		if (!err)
-			call->flags |= TRACE_EVENT_FL_FILTERED;
+			event_set_filtered_flag(file);
 		else
-			filter_disable(call);
+			filter_disable(file);
 
-		rcu_assign_pointer(call->filter, filter);
+		event_set_filter(file, filter);
 
 		if (tmp) {
 			/* Make sure the call is done with the filter */
@@ -1889,6 +2028,7 @@ int apply_subsystem_event_filter(struct ftrace_subsystem_dir *dir,
 				 char *filter_string)
 {
 	struct event_subsystem *system = dir->subsystem;
+	struct trace_array *tr = dir->tr;
 	struct event_filter *filter;
 	int err = 0;
 
@@ -1901,18 +2041,18 @@ int apply_subsystem_event_filter(struct ftrace_subsystem_dir *dir,
 	}
 
 	if (!strcmp(strstrip(filter_string), "0")) {
-		filter_free_subsystem_preds(system);
+		filter_free_subsystem_preds(system, tr);
 		remove_filter_string(system->filter);
 		filter = system->filter;
 		system->filter = NULL;
 		/* Ensure all filters are no longer used */
 		synchronize_sched();
-		filter_free_subsystem_filters(system);
+		filter_free_subsystem_filters(system, tr);
 		__free_filter(filter);
 		goto out_unlock;
 	}
 
-	err = create_system_filter(system, filter_string, &filter);
+	err = create_system_filter(system, tr, filter_string, &filter);
 	if (filter) {
 		/*
 		 * No event actually uses the system filter
diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c
index d21a74670088..7c3e3e72e2b6 100644
--- a/kernel/trace/trace_export.c
+++ b/kernel/trace/trace_export.c
@@ -180,7 +180,7 @@ struct ftrace_event_call __used event_##call = {			\
 	.event.type		= etype,				\
 	.class			= &event_class_ftrace_##call,		\
 	.print_fmt		= print,				\
-	.flags			= TRACE_EVENT_FL_IGNORE_ENABLE,		\
+	.flags			= TRACE_EVENT_FL_IGNORE_ENABLE | TRACE_EVENT_FL_USE_CALL_FILTER, \
 };									\
 struct ftrace_event_call __used						\
 __attribute__((section("_ftrace_events"))) *__event_##call = &event_##call;
diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
index e08c030b8f38..80387d1d27e1 100644
--- a/kernel/trace/trace_functions_graph.c
+++ b/kernel/trace/trace_functions_graph.c
@@ -270,7 +270,7 @@ int __trace_graph_entry(struct trace_array *tr,
 		return 0;
 	entry	= ring_buffer_event_data(event);
 	entry->graph_ent			= *trace;
-	if (!filter_current_check_discard(buffer, call, entry, event))
+	if (!call_filter_check_discard(call, entry, buffer, event))
 		__buffer_unlock_commit(buffer, event);
 
 	return 1;
@@ -385,7 +385,7 @@ void __trace_graph_return(struct trace_array *tr,
 		return;
 	entry	= ring_buffer_event_data(event);
 	entry->ret				= *trace;
-	if (!filter_current_check_discard(buffer, call, entry, event))
+	if (!call_filter_check_discard(call, entry, buffer, event))
 		__buffer_unlock_commit(buffer, event);
 }
 
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 243f6834d026..dae9541ada9e 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -835,7 +835,7 @@ __kprobe_trace_func(struct trace_probe *tp, struct pt_regs *regs,
 	entry->ip = (unsigned long)tp->rp.kp.addr;
 	store_trace_args(sizeof(*entry), tp, regs, (u8 *)&entry[1], dsize);
 
-	if (!filter_current_check_discard(buffer, call, entry, event))
+	if (!filter_check_discard(ftrace_file, entry, buffer, event))
 		trace_buffer_unlock_commit_regs(buffer, event,
 						irq_flags, pc, regs);
 }
@@ -884,7 +884,7 @@ __kretprobe_trace_func(struct trace_probe *tp, struct kretprobe_instance *ri,
 	entry->ret_ip = (unsigned long)ri->ret_addr;
 	store_trace_args(sizeof(*entry), tp, regs, (u8 *)&entry[1], dsize);
 
-	if (!filter_current_check_discard(buffer, call, entry, event))
+	if (!filter_check_discard(ftrace_file, entry, buffer, event))
 		trace_buffer_unlock_commit_regs(buffer, event,
 						irq_flags, pc, regs);
 }
diff --git a/kernel/trace/trace_mmiotrace.c b/kernel/trace/trace_mmiotrace.c
index b3dcfb2f0fef..0abd9b863474 100644
--- a/kernel/trace/trace_mmiotrace.c
+++ b/kernel/trace/trace_mmiotrace.c
@@ -323,7 +323,7 @@ static void __trace_mmiotrace_rw(struct trace_array *tr,
 	entry	= ring_buffer_event_data(event);
 	entry->rw			= *rw;
 
-	if (!filter_check_discard(call, entry, buffer, event))
+	if (!call_filter_check_discard(call, entry, buffer, event))
 		trace_buffer_unlock_commit(buffer, event, 0, pc);
 }
 
@@ -353,7 +353,7 @@ static void __trace_mmiotrace_map(struct trace_array *tr,
 	entry	= ring_buffer_event_data(event);
 	entry->map			= *map;
 
-	if (!filter_check_discard(call, entry, buffer, event))
+	if (!call_filter_check_discard(call, entry, buffer, event))
 		trace_buffer_unlock_commit(buffer, event, 0, pc);
 }
 
diff --git a/kernel/trace/trace_sched_switch.c b/kernel/trace/trace_sched_switch.c
index 4e98e3b257a3..3f34dc9b40f3 100644
--- a/kernel/trace/trace_sched_switch.c
+++ b/kernel/trace/trace_sched_switch.c
@@ -45,7 +45,7 @@ tracing_sched_switch_trace(struct trace_array *tr,
 	entry->next_state		= next->state;
 	entry->next_cpu	= task_cpu(next);
 
-	if (!filter_check_discard(call, entry, buffer, event))
+	if (!call_filter_check_discard(call, entry, buffer, event))
 		trace_buffer_unlock_commit(buffer, event, flags, pc);
 }
 
@@ -101,7 +101,7 @@ tracing_sched_wakeup_trace(struct trace_array *tr,
 	entry->next_state		= wakee->state;
 	entry->next_cpu			= task_cpu(wakee);
 
-	if (!filter_check_discard(call, entry, buffer, event))
+	if (!call_filter_check_discard(call, entry, buffer, event))
 		trace_buffer_unlock_commit(buffer, event, flags, pc);
 }
 
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index 559329d9bd2f..32644eece429 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -336,8 +336,8 @@ static void ftrace_syscall_enter(void *data, struct pt_regs *regs, long id)
 	entry->nr = syscall_nr;
 	syscall_get_arguments(current, regs, 0, sys_data->nb_args, entry->args);
 
-	if (!filter_current_check_discard(buffer, sys_data->enter_event,
-					  entry, event))
+	if (!call_filter_check_discard(sys_data->enter_event, entry,
+				       buffer, event))
 		trace_current_buffer_unlock_commit(buffer, event,
 						   irq_flags, pc);
 }
@@ -377,8 +377,8 @@ static void ftrace_syscall_exit(void *data, struct pt_regs *regs, long ret)
 	entry->nr = syscall_nr;
 	entry->ret = syscall_get_return_value(current, regs);
 
-	if (!filter_current_check_discard(buffer, sys_data->exit_event,
-					  entry, event))
+	if (!call_filter_check_discard(sys_data->exit_event, entry,
+				       buffer, event))
 		trace_current_buffer_unlock_commit(buffer, event,
 						   irq_flags, pc);
 }
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index 272261b5f94f..b6dcc42ef7f5 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -128,6 +128,7 @@ alloc_trace_uprobe(const char *group, const char *event, int nargs, bool is_ret)
 	if (is_ret)
 		tu->consumer.ret_handler = uretprobe_dispatcher;
 	init_trace_uprobe_filter(&tu->filter);
+	tu->call.flags |= TRACE_EVENT_FL_USE_CALL_FILTER;
 	return tu;
 
 error:
@@ -561,7 +562,7 @@ static void uprobe_trace_print(struct trace_uprobe *tu,
 	for (i = 0; i < tu->nr_args; i++)
 		call_fetch(&tu->args[i].fetch, regs, data + tu->args[i].offset);
 
-	if (!filter_current_check_discard(buffer, call, entry, event))
+	if (!call_filter_check_discard(call, entry, buffer, event))
 		trace_buffer_unlock_commit(buffer, event, 0, 0);
 }
 
-- 
cgit 


From 38de93abec8d8acd8d6dbbe9b0d92d6d5cdb3090 Mon Sep 17 00:00:00 2001
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 24 Oct 2013 08:34:18 -0500
Subject: tracing: Make register/unregister_ftrace_command __init

register/unregister_ftrace_command() are only ever called from __init
functions, so can themselves be made __init.

Also make register_snapshot_cmd() __init for the same reason.

Link: http://lkml.kernel.org/r/d4042c8cadb7ae6f843ac9a89a24e1c6a3099727.1382620672.git.tom.zanussi@linux.intel.com

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 include/linux/ftrace.h |  4 ++--
 kernel/trace/ftrace.c  | 12 ++++++++++--
 kernel/trace/trace.c   |  4 ++--
 3 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index ec85d48619e1..31ea4b428360 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -533,11 +533,11 @@ static inline int ftrace_force_update(void) { return 0; }
 static inline void ftrace_disable_daemon(void) { }
 static inline void ftrace_enable_daemon(void) { }
 static inline void ftrace_release_mod(struct module *mod) {}
-static inline int register_ftrace_command(struct ftrace_func_command *cmd)
+static inline __init int register_ftrace_command(struct ftrace_func_command *cmd)
 {
 	return -EINVAL;
 }
-static inline int unregister_ftrace_command(char *cmd_name)
+static inline __init int unregister_ftrace_command(char *cmd_name)
 {
 	return -EINVAL;
 }
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 080b7d41e17f..22fa55696760 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -3307,7 +3307,11 @@ void unregister_ftrace_function_probe_all(char *glob)
 static LIST_HEAD(ftrace_commands);
 static DEFINE_MUTEX(ftrace_cmd_mutex);
 
-int register_ftrace_command(struct ftrace_func_command *cmd)
+/*
+ * Currently we only register ftrace commands from __init, so mark this
+ * __init too.
+ */
+__init int register_ftrace_command(struct ftrace_func_command *cmd)
 {
 	struct ftrace_func_command *p;
 	int ret = 0;
@@ -3326,7 +3330,11 @@ int register_ftrace_command(struct ftrace_func_command *cmd)
 	return ret;
 }
 
-int unregister_ftrace_command(struct ftrace_func_command *cmd)
+/*
+ * Currently we only unregister ftrace commands from __init, so mark
+ * this __init too.
+ */
+__init int unregister_ftrace_command(struct ftrace_func_command *cmd)
 {
 	struct ftrace_func_command *p, *n;
 	int ret = -ENODEV;
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 489da8b19f30..f9fa42b180e3 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -5477,12 +5477,12 @@ static struct ftrace_func_command ftrace_snapshot_cmd = {
 	.func			= ftrace_trace_snapshot_callback,
 };
 
-static int register_snapshot_cmd(void)
+static __init int register_snapshot_cmd(void)
 {
 	return register_ftrace_command(&ftrace_snapshot_cmd);
 }
 #else
-static inline int register_snapshot_cmd(void) { return 0; }
+static inline __init int register_snapshot_cmd(void) { return 0; }
 #endif /* defined(CONFIG_TRACER_SNAPSHOT) && defined(CONFIG_DYNAMIC_FTRACE) */
 
 struct dentry *tracing_init_dentry_tr(struct trace_array *tr)
-- 
cgit 


From a5a3e43111e145aaaec4c60c927a8155b875890a Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Sat, 2 Nov 2013 19:44:00 +0000
Subject: iio: Fix sign extension table in mcp3422 driver

the index argument to sign_extend32() gives the bit position (from 0)
to the sign bit

so e.g. if the measurement has 16-bit resolution, we need to pass 15;
a measurement of 0x8000 should be reported as -32768, not 32768

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Acked-by: Angelo Compagnucci <angelo.compagnucci@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/mcp3422.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/iio/adc/mcp3422.c b/drivers/iio/adc/mcp3422.c
index 12948325431c..c8c1baaec6c1 100644
--- a/drivers/iio/adc/mcp3422.c
+++ b/drivers/iio/adc/mcp3422.c
@@ -88,10 +88,10 @@ static const int mcp3422_sample_rates[4] = {
 
 /* sample rates to sign extension table */
 static const int mcp3422_sign_extend[4] = {
-	[MCP3422_SRATE_240] = 12,
-	[MCP3422_SRATE_60] = 14,
-	[MCP3422_SRATE_15] = 16,
-	[MCP3422_SRATE_3] = 18 };
+	[MCP3422_SRATE_240] = 11,
+	[MCP3422_SRATE_60] = 13,
+	[MCP3422_SRATE_15] = 15,
+	[MCP3422_SRATE_3] = 17 };
 
 /* Client data (each client gets its own) */
 struct mcp3422 {
-- 
cgit 


From d562aff93bfb530b0992141500a402d17081189d Mon Sep 17 00:00:00 2001
From: Tom Zanussi <tom.zanussi@linux.intel.com>
Date: Thu, 24 Oct 2013 08:34:19 -0500
Subject: tracing: Add support for SOFT_DISABLE to syscall events

The original SOFT_DISABLE patches didn't add support for soft disable
of syscall events; this adds it.

Add an array of ftrace_event_file pointers indexed by syscall number
to the trace array and remove the existing enabled bitmaps, which as a
result are now redundant.  The ftrace_event_file structs in turn
contain the soft disable flags we need for per-syscall soft disable
accounting.

Adding ftrace_event_files also means we can remove the USE_CALL_FILTER
bit, thus enabling multibuffer filter support for syscall events.

Link: http://lkml.kernel.org/r/6e72b566e85d8df8042f133efbc6c30e21fb017e.1382620672.git.tom.zanussi@linux.intel.com

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 include/linux/syscalls.h      |  4 ++--
 kernel/trace/trace.h          |  4 ++--
 kernel/trace/trace_syscalls.c | 42 ++++++++++++++++++++++++++++++++----------
 3 files changed, 36 insertions(+), 14 deletions(-)

diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 10bafa97049d..2ef31bfd620b 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -120,7 +120,7 @@ extern struct trace_event_functions exit_syscall_print_funcs;
 		.class			= &event_class_syscall_enter,	\
 		.event.funcs            = &enter_syscall_print_funcs,	\
 		.data			= (void *)&__syscall_meta_##sname,\
-		.flags			= TRACE_EVENT_FL_CAP_ANY | TRACE_EVENT_FL_USE_CALL_FILTER,\
+		.flags                  = TRACE_EVENT_FL_CAP_ANY,	\
 	};								\
 	static struct ftrace_event_call __used				\
 	  __attribute__((section("_ftrace_events")))			\
@@ -134,7 +134,7 @@ extern struct trace_event_functions exit_syscall_print_funcs;
 		.class			= &event_class_syscall_exit,	\
 		.event.funcs		= &exit_syscall_print_funcs,	\
 		.data			= (void *)&__syscall_meta_##sname,\
-		.flags			= TRACE_EVENT_FL_CAP_ANY | TRACE_EVENT_FL_USE_CALL_FILTER,\
+		.flags                  = TRACE_EVENT_FL_CAP_ANY,	\
 	};								\
 	static struct ftrace_event_call __used				\
 	  __attribute__((section("_ftrace_events")))			\
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 12d1a612a73e..9c27cdadd71f 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -192,8 +192,8 @@ struct trace_array {
 #ifdef CONFIG_FTRACE_SYSCALLS
 	int			sys_refcount_enter;
 	int			sys_refcount_exit;
-	DECLARE_BITMAP(enabled_enter_syscalls, NR_syscalls);
-	DECLARE_BITMAP(enabled_exit_syscalls, NR_syscalls);
+	struct ftrace_event_file *enter_syscall_files[NR_syscalls];
+	struct ftrace_event_file *exit_syscall_files[NR_syscalls];
 #endif
 	int			stop_count;
 	int			clock_id;
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index 32644eece429..e4b6d11bdf78 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -302,6 +302,7 @@ static int __init syscall_exit_define_fields(struct ftrace_event_call *call)
 static void ftrace_syscall_enter(void *data, struct pt_regs *regs, long id)
 {
 	struct trace_array *tr = data;
+	struct ftrace_event_file *ftrace_file;
 	struct syscall_trace_enter *entry;
 	struct syscall_metadata *sys_data;
 	struct ring_buffer_event *event;
@@ -314,7 +315,13 @@ static void ftrace_syscall_enter(void *data, struct pt_regs *regs, long id)
 	syscall_nr = trace_get_syscall_nr(current, regs);
 	if (syscall_nr < 0)
 		return;
-	if (!test_bit(syscall_nr, tr->enabled_enter_syscalls))
+
+	/* Here we're inside tp handler's rcu_read_lock_sched (__DO_TRACE) */
+	ftrace_file = rcu_dereference_sched(tr->enter_syscall_files[syscall_nr]);
+	if (!ftrace_file)
+		return;
+
+	if (test_bit(FTRACE_EVENT_FL_SOFT_DISABLED_BIT, &ftrace_file->flags))
 		return;
 
 	sys_data = syscall_nr_to_meta(syscall_nr);
@@ -336,8 +343,7 @@ static void ftrace_syscall_enter(void *data, struct pt_regs *regs, long id)
 	entry->nr = syscall_nr;
 	syscall_get_arguments(current, regs, 0, sys_data->nb_args, entry->args);
 
-	if (!call_filter_check_discard(sys_data->enter_event, entry,
-				       buffer, event))
+	if (!filter_check_discard(ftrace_file, entry, buffer, event))
 		trace_current_buffer_unlock_commit(buffer, event,
 						   irq_flags, pc);
 }
@@ -345,6 +351,7 @@ static void ftrace_syscall_enter(void *data, struct pt_regs *regs, long id)
 static void ftrace_syscall_exit(void *data, struct pt_regs *regs, long ret)
 {
 	struct trace_array *tr = data;
+	struct ftrace_event_file *ftrace_file;
 	struct syscall_trace_exit *entry;
 	struct syscall_metadata *sys_data;
 	struct ring_buffer_event *event;
@@ -356,7 +363,13 @@ static void ftrace_syscall_exit(void *data, struct pt_regs *regs, long ret)
 	syscall_nr = trace_get_syscall_nr(current, regs);
 	if (syscall_nr < 0)
 		return;
-	if (!test_bit(syscall_nr, tr->enabled_exit_syscalls))
+
+	/* Here we're inside tp handler's rcu_read_lock_sched (__DO_TRACE()) */
+	ftrace_file = rcu_dereference_sched(tr->exit_syscall_files[syscall_nr]);
+	if (!ftrace_file)
+		return;
+
+	if (test_bit(FTRACE_EVENT_FL_SOFT_DISABLED_BIT, &ftrace_file->flags))
 		return;
 
 	sys_data = syscall_nr_to_meta(syscall_nr);
@@ -377,8 +390,7 @@ static void ftrace_syscall_exit(void *data, struct pt_regs *regs, long ret)
 	entry->nr = syscall_nr;
 	entry->ret = syscall_get_return_value(current, regs);
 
-	if (!call_filter_check_discard(sys_data->exit_event, entry,
-				       buffer, event))
+	if (!filter_check_discard(ftrace_file, entry, buffer, event))
 		trace_current_buffer_unlock_commit(buffer, event,
 						   irq_flags, pc);
 }
@@ -397,7 +409,7 @@ static int reg_event_syscall_enter(struct ftrace_event_file *file,
 	if (!tr->sys_refcount_enter)
 		ret = register_trace_sys_enter(ftrace_syscall_enter, tr);
 	if (!ret) {
-		set_bit(num, tr->enabled_enter_syscalls);
+		rcu_assign_pointer(tr->enter_syscall_files[num], file);
 		tr->sys_refcount_enter++;
 	}
 	mutex_unlock(&syscall_trace_lock);
@@ -415,10 +427,15 @@ static void unreg_event_syscall_enter(struct ftrace_event_file *file,
 		return;
 	mutex_lock(&syscall_trace_lock);
 	tr->sys_refcount_enter--;
-	clear_bit(num, tr->enabled_enter_syscalls);
+	rcu_assign_pointer(tr->enter_syscall_files[num], NULL);
 	if (!tr->sys_refcount_enter)
 		unregister_trace_sys_enter(ftrace_syscall_enter, tr);
 	mutex_unlock(&syscall_trace_lock);
+	/*
+	 * Callers expect the event to be completely disabled on
+	 * return, so wait for current handlers to finish.
+	 */
+	synchronize_sched();
 }
 
 static int reg_event_syscall_exit(struct ftrace_event_file *file,
@@ -435,7 +452,7 @@ static int reg_event_syscall_exit(struct ftrace_event_file *file,
 	if (!tr->sys_refcount_exit)
 		ret = register_trace_sys_exit(ftrace_syscall_exit, tr);
 	if (!ret) {
-		set_bit(num, tr->enabled_exit_syscalls);
+		rcu_assign_pointer(tr->exit_syscall_files[num], file);
 		tr->sys_refcount_exit++;
 	}
 	mutex_unlock(&syscall_trace_lock);
@@ -453,10 +470,15 @@ static void unreg_event_syscall_exit(struct ftrace_event_file *file,
 		return;
 	mutex_lock(&syscall_trace_lock);
 	tr->sys_refcount_exit--;
-	clear_bit(num, tr->enabled_exit_syscalls);
+	rcu_assign_pointer(tr->exit_syscall_files[num], NULL);
 	if (!tr->sys_refcount_exit)
 		unregister_trace_sys_exit(ftrace_syscall_exit, tr);
 	mutex_unlock(&syscall_trace_lock);
+	/*
+	 * Callers expect the event to be completely disabled on
+	 * return, so wait for current handlers to finish.
+	 */
+	synchronize_sched();
 }
 
 static int __init init_syscall_trace(struct ftrace_event_call *call)
-- 
cgit 


From cf3e1feba7f906f233790f1806592730a88f584d Mon Sep 17 00:00:00 2001
From: Yinghai Lu <yinghai@kernel.org>
Date: Tue, 5 Nov 2013 13:34:38 -0700
Subject: PCI: Workaround missing pci_set_master in pci drivers

Ben Herrenschmidt found that commit 928bea964827 ("PCI: Delay enabling
bridges until they're needed") breaks PCI in some powerpc environments.

The reason is that the PCIe port driver will call pci_enable_device() on
the bridge, so the device is enabled, but skips pci_set_master because
pcie_port_auto and no acpi on powerpc.

Because of that, pci_enable_bridge() later on (called as a result of the
child device driver doing pci_enable_device) will see the bridge as
already enabled and will not call pci_set_master() on it.

Fixed by add checking in pci_enable_bridge, and call pci_set_master
if driver skip that.

That will make the code more robot and wade off problem for missing
pci_set_master in drivers.

Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/pci/pci.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 36cc8d5ae8b2..7a92d81c28e0 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1155,8 +1155,14 @@ static void pci_enable_bridge(struct pci_dev *dev)
 
 	pci_enable_bridge(dev->bus->self);
 
-	if (pci_is_enabled(dev))
+	if (pci_is_enabled(dev)) {
+		if (!dev->is_busmaster) {
+			dev_warn(&dev->dev, "driver skip pci_set_master, fix it!\n");
+			pci_set_master(dev);
+		}
 		return;
+	}
+
 	retval = pci_enable_device(dev);
 	if (retval)
 		dev_err(&dev->dev, "Error enabling bridge (%d), continuing\n",
-- 
cgit 


From fbeeb822f6f45cadf154d7b7cff1c13537cd799d Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Tue, 5 Nov 2013 13:34:51 -0700
Subject: PCI: Drop warning about drivers that don't use pci_set_master()

f41f064cf4 ("PCI: Workaround missing pci_set_master in pci drivers") made
pci_enable_bridge() turn on bus mastering if the driver hadn't done so
already.  It also added a warning in this case.  But there's no reason to
warn about it unless it's actually a problem to enable bus mastering here.

This patch drops the warning because I'm not aware of any such problem.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Paul Bolle <pebolle@tiscali.nl>
---
 drivers/pci/pci.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 7a92d81c28e0..ac40f90cfd5f 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1156,10 +1156,8 @@ static void pci_enable_bridge(struct pci_dev *dev)
 	pci_enable_bridge(dev->bus->self);
 
 	if (pci_is_enabled(dev)) {
-		if (!dev->is_busmaster) {
-			dev_warn(&dev->dev, "driver skip pci_set_master, fix it!\n");
+		if (!dev->is_busmaster)
 			pci_set_master(dev);
-		}
 		return;
 	}
 
-- 
cgit 


From 482fc6094afad572a4ea1fd722e7b11ca72022a0 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Tue, 5 Nov 2013 02:24:17 +0100
Subject: ipv4: introduce new IP_MTU_DISCOVER mode IP_PMTUDISC_INTERFACE

Sockets marked with IP_PMTUDISC_INTERFACE won't do path mtu discovery,
their sockets won't accept and install new path mtu information and they
will always use the interface mtu for outgoing packets. It is guaranteed
that the packet is not fragmented locally. But we won't set the DF-Flag
on the outgoing frames.

Florian Weimer had the idea to use this flag to ensure DNS servers are
never generating outgoing fragments. They may well be fragmented on the
path, but the server never stores or usees path mtu values, which could
well be forged in an attack.

(The root of the problem with path MTU discovery is that there is
no reliable way to authenticate ICMP Fragmentation Needed But DF Set
messages because they are sent from intermediate routers with their
source addresses, and the IMCP payload will not always contain sufficient
information to identify a flow.)

Recent research in the DNS community showed that it is possible to
implement an attack where DNS cache poisoning is feasible by spoofing
fragments. This work was done by Amir Herzberg and Haya Shulman:
<https://sites.google.com/site/hayashulman/files/fragmentation-poisoning.pdf>

This issue was previously discussed among the DNS community, e.g.
<http://www.ietf.org/mail-archive/web/dnsext/current/msg01204.html>,
without leading to fixes.

This patch depends on the patch "ipv4: fix DO and PROBE pmtu mode
regarding local fragmentation with UFO/CORK" for the enforcement of the
non-fragmentable checks. If other users than ip_append_page/data should
use this semantic too, we have to add a new flag to IPCB(skb)->flags to
suppress local fragmentation and check for this in ip_finish_output.

Many thanks to Florian Weimer for the idea and feedback while implementing
this patch.

Cc: David S. Miller <davem@davemloft.net>
Suggested-by: Florian Weimer <fweimer@redhat.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/route.h     | 16 ++++++++++++----
 include/uapi/linux/in.h |  5 +++++
 net/dccp/ipv4.c         |  1 +
 net/ipv4/ip_output.c    |  8 ++++----
 net/ipv4/ip_sockglue.c  |  2 +-
 net/ipv4/route.c        |  4 ++++
 net/ipv4/tcp_ipv4.c     |  1 +
 7 files changed, 28 insertions(+), 9 deletions(-)

diff --git a/include/net/route.h b/include/net/route.h
index dd4ae0029fd8..f68c167280a7 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -313,12 +313,20 @@ static inline int ip4_dst_hoplimit(const struct dst_entry *dst)
 	return hoplimit;
 }
 
-static inline int ip_skb_dst_mtu(struct sk_buff *skb)
+static inline bool ip_sk_accept_pmtu(const struct sock *sk)
 {
-	struct inet_sock *inet = skb->sk ? inet_sk(skb->sk) : NULL;
+	return inet_sk(sk)->pmtudisc != IP_PMTUDISC_INTERFACE;
+}
 
-	return (inet && inet->pmtudisc == IP_PMTUDISC_PROBE) ?
-	       skb_dst(skb)->dev->mtu : dst_mtu(skb_dst(skb));
+static inline bool ip_sk_use_pmtu(const struct sock *sk)
+{
+	return inet_sk(sk)->pmtudisc < IP_PMTUDISC_PROBE;
+}
+
+static inline int ip_skb_dst_mtu(const struct sk_buff *skb)
+{
+	return (!skb->sk || ip_sk_use_pmtu(skb->sk)) ?
+	       dst_mtu(skb_dst(skb)) : skb_dst(skb)->dev->mtu;
 }
 
 #endif	/* _ROUTE_H */
diff --git a/include/uapi/linux/in.h b/include/uapi/linux/in.h
index f9e8e496ae5d..393c5de09d42 100644
--- a/include/uapi/linux/in.h
+++ b/include/uapi/linux/in.h
@@ -115,6 +115,11 @@ struct in_addr {
 #define IP_PMTUDISC_WANT		1	/* Use per route hints	*/
 #define IP_PMTUDISC_DO			2	/* Always DF		*/
 #define IP_PMTUDISC_PROBE		3       /* Ignore dst pmtu      */
+/* Always use interface mtu (ignores dst pmtu) but don't set DF flag.
+ * Also incoming ICMP frag_needed notifications will be ignored on
+ * this socket to prevent accepting spoofed ones.
+ */
+#define IP_PMTUDISC_INTERFACE		4
 
 #define IP_MULTICAST_IF			32
 #define IP_MULTICAST_TTL 		33
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 720c36225ed9..d9f65fc66db5 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -174,6 +174,7 @@ static inline void dccp_do_pmtu_discovery(struct sock *sk,
 	mtu = dst_mtu(dst);
 
 	if (inet->pmtudisc != IP_PMTUDISC_DONT &&
+	    ip_sk_accept_pmtu(sk) &&
 	    inet_csk(sk)->icsk_pmtu_cookie > mtu) {
 		dccp_sync_mss(sk, mtu);
 
diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c
index 51be64e18e32..912402752f2f 100644
--- a/net/ipv4/ip_output.c
+++ b/net/ipv4/ip_output.c
@@ -1037,7 +1037,6 @@ error:
 static int ip_setup_cork(struct sock *sk, struct inet_cork *cork,
 			 struct ipcm_cookie *ipc, struct rtable **rtp)
 {
-	struct inet_sock *inet = inet_sk(sk);
 	struct ip_options_rcu *opt;
 	struct rtable *rt;
 
@@ -1063,8 +1062,8 @@ static int ip_setup_cork(struct sock *sk, struct inet_cork *cork,
 	 * We steal reference to this route, caller should not release it
 	 */
 	*rtp = NULL;
-	cork->fragsize = inet->pmtudisc == IP_PMTUDISC_PROBE ?
-			 rt->dst.dev->mtu : dst_mtu(&rt->dst);
+	cork->fragsize = ip_sk_use_pmtu(sk) ?
+			 dst_mtu(&rt->dst) : rt->dst.dev->mtu;
 	cork->dst = &rt->dst;
 	cork->length = 0;
 	cork->ttl = ipc->ttl;
@@ -1315,7 +1314,8 @@ struct sk_buff *__ip_make_skb(struct sock *sk,
 	/* DF bit is set when we want to see DF on outgoing frames.
 	 * If local_df is set too, we still allow to fragment this frame
 	 * locally. */
-	if (inet->pmtudisc >= IP_PMTUDISC_DO ||
+	if (inet->pmtudisc == IP_PMTUDISC_DO ||
+	    inet->pmtudisc == IP_PMTUDISC_PROBE ||
 	    (skb->len <= dst_mtu(&rt->dst) &&
 	     ip_dont_fragment(sk, &rt->dst)))
 		df = htons(IP_DF);
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 0626f2cb192e..3f858266fa7e 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -627,7 +627,7 @@ static int do_ip_setsockopt(struct sock *sk, int level,
 		inet->nodefrag = val ? 1 : 0;
 		break;
 	case IP_MTU_DISCOVER:
-		if (val < IP_PMTUDISC_DONT || val > IP_PMTUDISC_PROBE)
+		if (val < IP_PMTUDISC_DONT || val > IP_PMTUDISC_INTERFACE)
 			goto e_inval;
 		inet->pmtudisc = val;
 		break;
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index d2d325382b13..f428935c50db 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1036,6 +1036,10 @@ void ipv4_sk_update_pmtu(struct sk_buff *skb, struct sock *sk, u32 mtu)
 	bool new = false;
 
 	bh_lock_sock(sk);
+
+	if (!ip_sk_accept_pmtu(sk))
+		goto out;
+
 	rt = (struct rtable *) __sk_dst_get(sk);
 
 	if (sock_owned_by_user(sk) || !rt) {
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 300ab2c93f29..14bba8a1c5a7 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -288,6 +288,7 @@ static void tcp_v4_mtu_reduced(struct sock *sk)
 	mtu = dst_mtu(dst);
 
 	if (inet->pmtudisc != IP_PMTUDISC_DONT &&
+	    ip_sk_accept_pmtu(sk) &&
 	    inet_csk(sk)->icsk_pmtu_cookie > mtu) {
 		tcp_sync_mss(sk, mtu);
 
-- 
cgit 


From 1cce16d37d0fe2668787d64ad172c5be6973aeca Mon Sep 17 00:00:00 2001
From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Date: Mon, 4 Nov 2013 17:27:19 -0700
Subject: net: mv643xx_eth: Add missing phy_addr_set in DT mode

Commit cc9d4598 'net: mv643xx_eth: use of_phy_connect if phy_node
present' made the call to phy_scan optional, if the DT has a link to
the phy node.

However phy_scan has the side effect of calling phy_addr_set, which
writes the phy MDIO address to the ethernet controller. If phy_addr_set
is not called, and the bootloader has not set the correct address then
the driver will fail to function.

Tested on Kirkwood.

Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Tested-by: Arnaud Ebalard <arno@natisbad.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/marvell/mv643xx_eth.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index 4cfae6c9a63f..00cd36e08601 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -2890,6 +2890,7 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
 					 PHY_INTERFACE_MODE_GMII);
 		if (!mp->phy)
 			err = -ENODEV;
+		phy_addr_set(mp, mp->phy->addr);
 	} else if (pd->phy_addr != MV643XX_ETH_PHY_NONE) {
 		mp->phy = phy_scan(mp, pd->phy_addr);
 
-- 
cgit 


From 0e033e04c2678dbbe74a46b23fffb7bb918c288e Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Tue, 5 Nov 2013 02:41:27 +0100
Subject: ipv6: fix headroom calculation in udp6_ufo_fragment

Commit 1e2bd517c108816220f262d7954b697af03b5f9c ("udp6: Fix udp
fragmentation for tunnel traffic.") changed the calculation if
there is enough space to include a fragment header in the skb from a
skb->mac_header dervived one to skb_headroom. Because we already peeled
off the skb to transport_header this is wrong. Change this back to check
if we have enough room before the mac_header.

This fixes a panic Saran Neti reported. He used the tbf scheduler which
skb_gso_segments the skb. The offsets get negative and we panic in memcpy
because the skb was erroneously not expanded at the head.

Reported-by: Saran Neti <Saran.Neti@telus.com>
Cc: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/udp_offload.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/udp_offload.c b/net/ipv6/udp_offload.c
index 08e23b0bf302..e7359f9eaa8d 100644
--- a/net/ipv6/udp_offload.c
+++ b/net/ipv6/udp_offload.c
@@ -90,7 +90,7 @@ static struct sk_buff *udp6_ufo_fragment(struct sk_buff *skb,
 
 		/* Check if there is enough headroom to insert fragment header. */
 		tnl_hlen = skb_tnl_header_len(skb);
-		if (skb_headroom(skb) < (tnl_hlen + frag_hdr_sz)) {
+		if (skb->mac_header < (tnl_hlen + frag_hdr_sz)) {
 			if (gso_pskb_expand_head(skb, tnl_hlen + frag_hdr_sz))
 				goto out;
 		}
-- 
cgit 


From d7a88c7eb46acb486922822eec3224c0bcab29dc Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Thu, 10 Oct 2013 19:18:02 +1100
Subject: powerpc/scom: Enable 64-bit addresses

On P8, XSCOM addresses has a special "indirect" form that
requires more than 32-bits, so let's use u64 everywhere in
the code instead of u32.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/scom.h             | 8 ++++----
 arch/powerpc/platforms/powernv/opal-xscom.c | 6 +++---
 arch/powerpc/platforms/wsp/scom_wsp.c       | 4 ++--
 3 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/powerpc/include/asm/scom.h b/arch/powerpc/include/asm/scom.h
index 07dcdcfdaefc..f5cde45b1161 100644
--- a/arch/powerpc/include/asm/scom.h
+++ b/arch/powerpc/include/asm/scom.h
@@ -54,8 +54,8 @@ struct scom_controller {
 	scom_map_t (*map)(struct device_node *ctrl_dev, u64 reg, u64 count);
 	void (*unmap)(scom_map_t map);
 
-	int (*read)(scom_map_t map, u32 reg, u64 *value);
-	int (*write)(scom_map_t map, u32 reg, u64 value);
+	int (*read)(scom_map_t map, u64 reg, u64 *value);
+	int (*write)(scom_map_t map, u64 reg, u64 value);
 };
 
 extern const struct scom_controller *scom_controller;
@@ -137,7 +137,7 @@ static inline void scom_unmap(scom_map_t map)
  *
  * Returns 0 (success) or a negative error code
  */
-static inline int scom_read(scom_map_t map, u32 reg, u64 *value)
+static inline int scom_read(scom_map_t map, u64 reg, u64 *value)
 {
 	int rc;
 
@@ -155,7 +155,7 @@ static inline int scom_read(scom_map_t map, u32 reg, u64 *value)
  *
  * Returns 0 (success) or a negative error code
  */
-static inline int scom_write(scom_map_t map, u32 reg, u64 value)
+static inline int scom_write(scom_map_t map, u64 reg, u64 value)
 {
 	return scom_controller->write(map, reg, value);
 }
diff --git a/arch/powerpc/platforms/powernv/opal-xscom.c b/arch/powerpc/platforms/powernv/opal-xscom.c
index 3ed5c6498324..09a90d8897ba 100644
--- a/arch/powerpc/platforms/powernv/opal-xscom.c
+++ b/arch/powerpc/platforms/powernv/opal-xscom.c
@@ -27,7 +27,7 @@
  */
 struct opal_scom_map {
 	uint32_t chip;
-	uint32_t addr;
+	uint64_t addr;
 };
 
 static scom_map_t opal_scom_map(struct device_node *dev, u64 reg, u64 count)
@@ -71,7 +71,7 @@ static int opal_xscom_err_xlate(int64_t rc)
 	}
 }
 
-static int opal_scom_read(scom_map_t map, u32 reg, u64 *value)
+static int opal_scom_read(scom_map_t map, u64 reg, u64 *value)
 {
 	struct opal_scom_map *m = map;
 	int64_t rc;
@@ -80,7 +80,7 @@ static int opal_scom_read(scom_map_t map, u32 reg, u64 *value)
 	return opal_xscom_err_xlate(rc);
 }
 
-static int opal_scom_write(scom_map_t map, u32 reg, u64 value)
+static int opal_scom_write(scom_map_t map, u64 reg, u64 value)
 {
 	struct opal_scom_map *m = map;
 	int64_t rc;
diff --git a/arch/powerpc/platforms/wsp/scom_wsp.c b/arch/powerpc/platforms/wsp/scom_wsp.c
index 54172c4a8a64..8928507affea 100644
--- a/arch/powerpc/platforms/wsp/scom_wsp.c
+++ b/arch/powerpc/platforms/wsp/scom_wsp.c
@@ -50,7 +50,7 @@ static void wsp_scom_unmap(scom_map_t map)
 	iounmap((void *)map);
 }
 
-static int wsp_scom_read(scom_map_t map, u32 reg, u64 *value)
+static int wsp_scom_read(scom_map_t map, u64 reg, u64 *value)
 {
 	u64 __iomem *addr = (u64 __iomem *)map;
 
@@ -59,7 +59,7 @@ static int wsp_scom_read(scom_map_t map, u32 reg, u64 *value)
 	return 0;
 }
 
-static int wsp_scom_write(scom_map_t map, u32 reg, u64 value)
+static int wsp_scom_write(scom_map_t map, u64 reg, u64 value)
 {
 	u64 __iomem *addr = (u64 __iomem *)map;
 
-- 
cgit 


From cda13552d5055a87dd39334dabf47249b01fc5aa Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Mon, 4 Nov 2013 13:20:35 +1100
Subject: powerpc/scom: Improve debugfs interface

The current debugfs interface to scom is essentially unused
and racy. It uses two different files "address" and "data"
to perform accesses which is at best impractical for anything
but manual use by a developer.

This replaces it with an "access" file which represent the entire
scom address space which can be lseek/read/writen too.

This file only supports accesses that are 8 bytes aligned and
multiple of 8 bytes in size. The offset is logically the SCOM
address multiplied by 8.

Since nothing in userspace exploits that file at the moment, the ABI
change is a no-brainer.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/sysdev/scom.c | 136 +++++++++++++++++++++++++++------------------
 1 file changed, 81 insertions(+), 55 deletions(-)

diff --git a/arch/powerpc/sysdev/scom.c b/arch/powerpc/sysdev/scom.c
index 3963d995648a..6f5a8d177c42 100644
--- a/arch/powerpc/sysdev/scom.c
+++ b/arch/powerpc/sysdev/scom.c
@@ -25,6 +25,7 @@
 #include <asm/debug.h>
 #include <asm/prom.h>
 #include <asm/scom.h>
+#include <asm/uaccess.h>
 
 const struct scom_controller *scom_controller;
 EXPORT_SYMBOL_GPL(scom_controller);
@@ -98,61 +99,89 @@ EXPORT_SYMBOL_GPL(scom_map_device);
 #ifdef CONFIG_SCOM_DEBUGFS
 struct scom_debug_entry {
 	struct device_node *dn;
-	unsigned long addr;
-	scom_map_t map;
-	spinlock_t lock;
-	char name[8];
-	struct debugfs_blob_wrapper blob;
+	struct debugfs_blob_wrapper path;
+	char name[16];
 };
 
-static int scom_addr_set(void *data, u64 val)
-{
-	struct scom_debug_entry *ent = data;
-
-	ent->addr = 0;
-	scom_unmap(ent->map);
-
-	ent->map = scom_map(ent->dn, val, 1);
-	if (scom_map_ok(ent->map))
-		ent->addr = val;
-	else
-		return -EFAULT;
-
-	return 0;
-}
-
-static int scom_addr_get(void *data, u64 *val)
+static ssize_t scom_debug_read(struct file *filp, char __user *ubuf,
+			       size_t count, loff_t *ppos)
 {
-	struct scom_debug_entry *ent = data;
-	*val = ent->addr;
-	return 0;
+	struct scom_debug_entry *ent = filp->private_data;
+	u64 __user *ubuf64 = (u64 __user *)ubuf;
+	loff_t off = *ppos;
+	ssize_t done = 0; 
+	u64 reg, reg_cnt, val;
+	scom_map_t map;
+	int rc;
+
+	if (off < 0 || (off & 7) || (count & 7))
+		return -EINVAL;
+	reg = off >> 3;
+	reg_cnt = count >> 3;
+
+	map = scom_map(ent->dn, reg, reg_cnt);
+	if (!scom_map_ok(map))
+		return -ENXIO;
+
+	for (reg = 0; reg < reg_cnt; reg++) {
+		rc = scom_read(map, reg, &val);
+		if (!rc)
+			rc = put_user(val, ubuf64);
+		if (rc) {
+			if (!done)
+				done = rc;
+			break;
+		}
+		ubuf64++;
+		*ppos += 8;
+		done += 8;
+	}
+	scom_unmap(map);
+	return done;
 }
-DEFINE_SIMPLE_ATTRIBUTE(scom_addr_fops, scom_addr_get, scom_addr_set,
-			"0x%llx\n");
 
-static int scom_val_set(void *data, u64 val)
+static ssize_t scom_debug_write(struct file* filp, const char __user *ubuf,
+				size_t count, loff_t *ppos)
 {
-	struct scom_debug_entry *ent = data;
-
-	if (!scom_map_ok(ent->map))
-		return -EFAULT;
-
-	scom_write(ent->map, 0, val);
-
-	return 0;
+	struct scom_debug_entry *ent = filp->private_data;
+	u64 __user *ubuf64 = (u64 __user *)ubuf;
+	loff_t off = *ppos;
+	ssize_t done = 0; 
+	u64 reg, reg_cnt, val;
+	scom_map_t map;
+	int rc;
+
+	if (off < 0 || (off & 7) || (count & 7))
+		return -EINVAL;
+	reg = off >> 3;
+	reg_cnt = count >> 3;
+
+	map = scom_map(ent->dn, reg, reg_cnt);
+	if (!scom_map_ok(map))
+		return -ENXIO;
+
+	for (reg = 0; reg < reg_cnt; reg++) {
+		rc = get_user(val, ubuf64);
+		if (!rc)
+			rc = scom_write(map, reg,  val);
+		if (rc) {
+			if (!done)
+				done = rc;
+			break;
+		}
+		ubuf64++;
+		done += 8;
+	}
+	scom_unmap(map);
+	return done;
 }
 
-static int scom_val_get(void *data, u64 *val)
-{
-	struct scom_debug_entry *ent = data;
-
-	if (!scom_map_ok(ent->map))
-		return -EFAULT;
-
-	return scom_read(ent->map, 0, val);
-}
-DEFINE_SIMPLE_ATTRIBUTE(scom_val_fops, scom_val_get, scom_val_set,
-			"0x%llx\n");
+static const struct file_operations scom_debug_fops = {
+	.read =		scom_debug_read,
+	.write =	scom_debug_write,
+	.open =		simple_open,
+	.llseek =	default_llseek,
+};
 
 static int scom_debug_init_one(struct dentry *root, struct device_node *dn,
 			       int i)
@@ -165,11 +194,9 @@ static int scom_debug_init_one(struct dentry *root, struct device_node *dn,
 		return -ENOMEM;
 
 	ent->dn = of_node_get(dn);
-	ent->map = SCOM_MAP_INVALID;
-	spin_lock_init(&ent->lock);
-	snprintf(ent->name, 8, "scom%d", i);
-	ent->blob.data = (void*) dn->full_name;
-	ent->blob.size = strlen(dn->full_name);
+	snprintf(ent->name, 16, "%08x", i);
+	ent->path.data = (void*) dn->full_name;
+	ent->path.size = strlen(dn->full_name);
 
 	dir = debugfs_create_dir(ent->name, root);
 	if (!dir) {
@@ -178,9 +205,8 @@ static int scom_debug_init_one(struct dentry *root, struct device_node *dn,
 		return -1;
 	}
 
-	debugfs_create_file("addr", 0600, dir, ent, &scom_addr_fops);
-	debugfs_create_file("value", 0600, dir, ent, &scom_val_fops);
-	debugfs_create_blob("devspec", 0400, dir, &ent->blob);
+	debugfs_create_blob("devspec", 0400, dir, &ent->path);
+	debugfs_create_file("access", 0600, dir, ent, &scom_debug_fops);
 
 	return 0;
 }
-- 
cgit 


From 80546ac51396bd1d2e37cc78c7bed44c08f90352 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Thu, 10 Oct 2013 19:19:15 +1100
Subject: powerpc/powernv: Add support for indirect XSCOM via debugfs

Indirect XSCOM addresses normally have the top bit set (of the 64-bit
address). This doesn't work via the normal debugfs interface, so we use
a different encoding, which we need to convert before calling OPAL.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/powernv/opal-xscom.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/arch/powerpc/platforms/powernv/opal-xscom.c b/arch/powerpc/platforms/powernv/opal-xscom.c
index 09a90d8897ba..4d99a8fd55ac 100644
--- a/arch/powerpc/platforms/powernv/opal-xscom.c
+++ b/arch/powerpc/platforms/powernv/opal-xscom.c
@@ -71,11 +71,33 @@ static int opal_xscom_err_xlate(int64_t rc)
 	}
 }
 
+static u64 opal_scom_unmangle(u64 reg)
+{
+	/*
+	 * XSCOM indirect addresses have the top bit set. Additionally
+	 * the reset of the top 3 nibbles is always 0.
+	 *
+	 * Because the debugfs interface uses signed offsets and shifts
+	 * the address left by 3, we basically cannot use the top 4 bits
+	 * of the 64-bit address, and thus cannot use the indirect bit.
+	 *
+	 * To deal with that, we support the indirect bit being in bit
+	 * 4 (IBM notation) instead of bit 0 in this API, we do the
+	 * conversion here. To leave room for further xscom address
+	 * expansion, we only clear out the top byte
+	 *
+	 */
+	if (reg & (1ull << 59))
+		reg = (reg & ~(0xffull << 56)) | (1ull << 63);
+	return reg;
+}
+
 static int opal_scom_read(scom_map_t map, u64 reg, u64 *value)
 {
 	struct opal_scom_map *m = map;
 	int64_t rc;
 
+	reg = opal_scom_unmangle(reg);
 	rc = opal_xscom_read(m->chip, m->addr + reg, (uint64_t *)__pa(value));
 	return opal_xscom_err_xlate(rc);
 }
@@ -85,6 +107,7 @@ static int opal_scom_write(scom_map_t map, u64 reg, u64 value)
 	struct opal_scom_map *m = map;
 	int64_t rc;
 
+	reg = opal_scom_unmangle(reg);
 	rc = opal_xscom_write(m->chip, m->addr + reg, value);
 	return opal_xscom_err_xlate(rc);
 }
-- 
cgit 


From 631ad691b5818291d89af9be607d2fe40be0886e Mon Sep 17 00:00:00 2001
From: Gavin Shan <shangw@linux.vnet.ibm.com>
Date: Mon, 4 Nov 2013 16:32:46 +0800
Subject: powerpc/powernv: Add PE to its own PELTV

We need add PE to its own PELTV. Otherwise, the errors originated
from the PE might contribute to other PEs. In the result, we can't
clear up the error successfully even we're checking and clearing
errors during access to PCI config space.

Cc: stable@vger.kernel.org
Reported-by: kalshett@in.ibm.com
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/powernv/pci-ioda.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index c639af7d4826..198566e1da71 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -163,13 +163,23 @@ static int pnv_ioda_configure_pe(struct pnv_phb *phb, struct pnv_ioda_pe *pe)
 		rid_end = pe->rid + 1;
 	}
 
-	/* Associate PE in PELT */
+	/*
+	 * Associate PE in PELT. We need add the PE into the
+	 * corresponding PELT-V as well. Otherwise, the error
+	 * originated from the PE might contribute to other
+	 * PEs.
+	 */
 	rc = opal_pci_set_pe(phb->opal_id, pe->pe_number, pe->rid,
 			     bcomp, dcomp, fcomp, OPAL_MAP_PE);
 	if (rc) {
 		pe_err(pe, "OPAL error %ld trying to setup PELT table\n", rc);
 		return -ENXIO;
 	}
+
+	rc = opal_pci_set_peltv(phb->opal_id, pe->pe_number,
+				pe->pe_number, OPAL_ADD_PE_TO_DOMAIN);
+	if (rc)
+		pe_warn(pe, "OPAL error %d adding self to PELTV\n", rc);
 	opal_pci_eeh_freeze_clear(phb->opal_id, pe->pe_number,
 				  OPAL_EEH_ACTION_CLEAR_FREEZE_ALL);
 
-- 
cgit 


From 36954dc78d8a1dcd4780cf4bd0fc6292791821b9 Mon Sep 17 00:00:00 2001
From: Gavin Shan <shangw@linux.vnet.ibm.com>
Date: Mon, 4 Nov 2013 16:32:47 +0800
Subject: powerpc/powernv: Reserve the correct PE number

We're assigning PE numbers after the completion of PCI probe. During
the PCI probe, we had PE#0 as the super container to encompass all
PCI devices. However, that's inappropriate since PELTM has ascending
order of priority on search on P7IOC. So we need PE#127 takes the
role that PE#0 has previously. For PHB3, we still have PE#0 as the
reserved PE.

The patch supposes that the underly firmware has built the RID to
PE# mapping after resetting IODA tables: all PELTM entries except
last one has invalid mapping on P7IOC, but all RTEs have binding
to PE#0. The reserved PE# is being exported by firmware by device
tree.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/powernv/pci-ioda.c | 22 +++++++++-------------
 arch/powerpc/platforms/powernv/pci.c      | 10 +++++++---
 arch/powerpc/platforms/powernv/pci.h      |  1 +
 3 files changed, 17 insertions(+), 16 deletions(-)

diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index 198566e1da71..084cdfa40682 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -1209,12 +1209,13 @@ void __init pnv_pci_init_ioda_phb(struct device_node *np,
 		pr_err("  Failed to map registers !\n");
 
 	/* Initialize more IODA stuff */
+	phb->ioda.total_pe = 1;
 	prop32 = of_get_property(np, "ibm,opal-num-pes", NULL);
-	if (!prop32)
-		phb->ioda.total_pe = 1;
-	else
+	if (prop32)
 		phb->ioda.total_pe = be32_to_cpup(prop32);
-
+	prop32 = of_get_property(np, "ibm,opal-reserved-pe", NULL);
+	if (prop32)
+		phb->ioda.reserved_pe = be32_to_cpup(prop32);
 	phb->ioda.m32_size = resource_size(&hose->mem_resources[0]);
 	/* FW Has already off top 64k of M32 space (MSI space) */
 	phb->ioda.m32_size += 0x10000;
@@ -1243,7 +1244,7 @@ void __init pnv_pci_init_ioda_phb(struct device_node *np,
 	if (phb->type == PNV_PHB_IODA1)
 		phb->ioda.io_segmap = aux + iomap_off;
 	phb->ioda.pe_array = aux + pemap_off;
-	set_bit(0, phb->ioda.pe_alloc);
+	set_bit(phb->ioda.reserved_pe, phb->ioda.pe_alloc);
 
 	INIT_LIST_HEAD(&phb->ioda.pe_dma_list);
 	INIT_LIST_HEAD(&phb->ioda.pe_list);
@@ -1268,8 +1269,10 @@ void __init pnv_pci_init_ioda_phb(struct device_node *np,
 					 segment_size);
 #endif
 
-	pr_info("  %d PE's M32: 0x%x [segment=0x%x] IO: 0x%x [segment=0x%x]\n",
+	pr_info("  %d (%d) PE's M32: 0x%x [segment=0x%x]"
+		" IO: 0x%x [segment=0x%x]\n",
 		phb->ioda.total_pe,
+		phb->ioda.reserved_pe,
 		phb->ioda.m32_size, phb->ioda.m32_segsize,
 		phb->ioda.io_size, phb->ioda.io_segsize);
 
@@ -1306,13 +1309,6 @@ void __init pnv_pci_init_ioda_phb(struct device_node *np,
 	rc = opal_pci_reset(phb_id, OPAL_PCI_IODA_TABLE_RESET, OPAL_ASSERT_RESET);
 	if (rc)
 		pr_warning("  OPAL Error %ld performing IODA table reset !\n", rc);
-
-	/*
-	 * On IODA1 map everything to PE#0, on IODA2 we assume the IODA reset
-	 * has cleared the RTT which has the same effect
-	 */
-	if (ioda_type == PNV_PHB_IODA1)
-		opal_pci_set_pe(phb_id, 0, 0, 7, 1, 1 , OPAL_MAP_PE);
 }
 
 void __init pnv_pci_init_ioda2_phb(struct device_node *np)
diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index 921ae673baf3..4eb33a9ed532 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -242,11 +242,15 @@ static void pnv_pci_config_check_eeh(struct pnv_phb *phb,
 	/*
 	 * Get the PE#. During the PCI probe stage, we might not
 	 * setup that yet. So all ER errors should be mapped to
-	 * PE#0
+	 * reserved PE.
 	 */
 	pe_no = PCI_DN(dn)->pe_number;
-	if (pe_no == IODA_INVALID_PE)
-		pe_no = 0;
+	if (pe_no == IODA_INVALID_PE) {
+		if (phb->type == PNV_PHB_P5IOC2)
+			pe_no = 0;
+		else
+			pe_no = phb->ioda.reserved_pe;
+	}
 
 	/* Read freeze status */
 	rc = opal_pci_eeh_freeze_status(phb->opal_id, pe_no, &fstate, &pcierr,
diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h
index 64d3b12e5b6d..911c24ef033e 100644
--- a/arch/powerpc/platforms/powernv/pci.h
+++ b/arch/powerpc/platforms/powernv/pci.h
@@ -125,6 +125,7 @@ struct pnv_phb {
 		struct {
 			/* Global bridge info */
 			unsigned int		total_pe;
+			unsigned int		reserved_pe;
 			unsigned int		m32_size;
 			unsigned int		m32_segsize;
 			unsigned int		m32_pci_base;
-- 
cgit 


From 0c4888ef1d8a8b82c29075ce7e257ff795af15c7 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Tue, 5 Nov 2013 16:33:22 +1100
Subject: powerpc: Fix fatal SLB miss when restoring PPR

When restoring the PPR value, we incorrectly access the thread structure
at a time where MSR:RI is clear, which means we cannot recover from nested
faults. However the thread structure isn't covered by the "bolted" SLB
entries and thus accessing can fault.

This fixes it by splitting the code so that the PPR value is loaded into
a GPR before MSR:RI is cleared.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/ppc_asm.h |  7 -------
 arch/powerpc/kernel/entry_64.S     | 10 +++++++++-
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h
index 8deaaad3b32f..3c1acc31a092 100644
--- a/arch/powerpc/include/asm/ppc_asm.h
+++ b/arch/powerpc/include/asm/ppc_asm.h
@@ -406,13 +406,6 @@ BEGIN_FTR_SECTION_NESTED(945)						\
 	std	ra,TASKTHREADPPR(rb);					\
 END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,945)
 
-#define RESTORE_PPR(ra, rb)						\
-BEGIN_FTR_SECTION_NESTED(946)						\
-	ld	ra,PACACURRENT(r13);					\
-	ld	rb,TASKTHREADPPR(ra);					\
-	mtspr	SPRN_PPR,rb;	/* Restore PPR */			\
-END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,946)
-
 #endif
 
 /*
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 12679cd43e0c..bbfb0294b354 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -818,6 +818,12 @@ fast_exception_return:
 	andi.	r0,r3,MSR_RI
 	beq-	unrecov_restore
 
+	/* Load PPR from thread struct before we clear MSR:RI */
+BEGIN_FTR_SECTION
+	ld	r2,PACACURRENT(r13)
+	ld	r2,TASKTHREADPPR(r2)
+END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
+
 	/*
 	 * Clear RI before restoring r13.  If we are returning to
 	 * userspace and we take an exception after restoring r13,
@@ -838,8 +844,10 @@ fast_exception_return:
 	 */
 	andi.	r0,r3,MSR_PR
 	beq	1f
+BEGIN_FTR_SECTION
+	mtspr	SPRN_PPR,r2	/* Restore PPR */
+END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR)
 	ACCOUNT_CPU_USER_EXIT(r2, r4)
-	RESTORE_PPR(r2, r4)
 	REST_GPR(13, r1)
 1:
 	mtspr	SPRN_SRR1,r3
-- 
cgit 


From 249a3630c48e5df8f8706d4cdf90bddf2b737c5d Mon Sep 17 00:00:00 2001
From: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Date: Tue, 5 Nov 2013 13:34:53 +0800
Subject: ipv6: drop the judgement in rt6_alloc_cow()

Now rt6_alloc_cow() is only called by ip6_pol_route() when
rt->rt6i_flags doesn't contain both RTF_NONEXTHOP and RTF_GATEWAY,
and rt->rt6i_flags hasn't been changed in ip6_rt_copy().
So there is no neccessary to judge whether rt->rt6i_flags contains
RTF_GATEWAY or not.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/route.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index fd399ac6c1f7..c28cdda3f5db 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -871,11 +871,9 @@ static struct rt6_info *rt6_alloc_cow(struct rt6_info *ort,
 	rt = ip6_rt_copy(ort, daddr);
 
 	if (rt) {
-		if (!(rt->rt6i_flags & RTF_GATEWAY)) {
-			if (ort->rt6i_dst.plen != 128 &&
-			    ipv6_addr_equal(&ort->rt6i_dst.addr, daddr))
-				rt->rt6i_flags |= RTF_ANYCAST;
-		}
+		if (ort->rt6i_dst.plen != 128 &&
+		    ipv6_addr_equal(&ort->rt6i_dst.addr, daddr))
+			rt->rt6i_flags |= RTF_ANYCAST;
 
 		rt->rt6i_flags |= RTF_CACHE;
 
-- 
cgit 


From 9bb8ca86075f37d3c169b9c46f8e7c6d3165e18f Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Tue, 5 Nov 2013 18:19:45 +0800
Subject: virtio-net: switch to use XPS to choose txq

We used to use a percpu structure vq_index to record the cpu to queue
mapping, this is suboptimal since it duplicates the work of XPS and
loses all other XPS functionality such as allowing user to configure
their own transmission steering strategy.

So this patch switches to use XPS and suggest a default mapping when
the number of cpus is equal to the number of queues. With XPS support,
there's no need for keeping per-cpu vq_index and .ndo_select_queue(),
so they were removed also.

Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/virtio_net.c | 48 ++----------------------------------------------
 1 file changed, 2 insertions(+), 46 deletions(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index a7e9ad9b213a..01f4eb5c8b78 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -132,9 +132,6 @@ struct virtnet_info {
 	/* Does the affinity hint is set for virtqueues? */
 	bool affinity_hint_set;
 
-	/* Per-cpu variable to show the mapping from CPU to virtqueue */
-	int __percpu *vq_index;
-
 	/* CPU hot plug notifier */
 	struct notifier_block nb;
 };
@@ -1114,7 +1111,6 @@ static int virtnet_vlan_rx_kill_vid(struct net_device *dev,
 static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
 {
 	int i;
-	int cpu;
 
 	if (vi->affinity_hint_set) {
 		for (i = 0; i < vi->max_queue_pairs; i++) {
@@ -1124,16 +1120,6 @@ static void virtnet_clean_affinity(struct virtnet_info *vi, long hcpu)
 
 		vi->affinity_hint_set = false;
 	}
-
-	i = 0;
-	for_each_online_cpu(cpu) {
-		if (cpu == hcpu) {
-			*per_cpu_ptr(vi->vq_index, cpu) = -1;
-		} else {
-			*per_cpu_ptr(vi->vq_index, cpu) =
-				++i % vi->curr_queue_pairs;
-		}
-	}
 }
 
 static void virtnet_set_affinity(struct virtnet_info *vi)
@@ -1155,7 +1141,7 @@ static void virtnet_set_affinity(struct virtnet_info *vi)
 	for_each_online_cpu(cpu) {
 		virtqueue_set_affinity(vi->rq[i].vq, cpu);
 		virtqueue_set_affinity(vi->sq[i].vq, cpu);
-		*per_cpu_ptr(vi->vq_index, cpu) = i;
+		netif_set_xps_queue(vi->dev, cpumask_of(cpu), i);
 		i++;
 	}
 
@@ -1269,28 +1255,6 @@ static int virtnet_change_mtu(struct net_device *dev, int new_mtu)
 	return 0;
 }
 
-/* To avoid contending a lock hold by a vcpu who would exit to host, select the
- * txq based on the processor id.
- */
-static u16 virtnet_select_queue(struct net_device *dev, struct sk_buff *skb)
-{
-	int txq;
-	struct virtnet_info *vi = netdev_priv(dev);
-
-	if (skb_rx_queue_recorded(skb)) {
-		txq = skb_get_rx_queue(skb);
-	} else {
-		txq = *__this_cpu_ptr(vi->vq_index);
-		if (txq == -1)
-			txq = 0;
-	}
-
-	while (unlikely(txq >= dev->real_num_tx_queues))
-		txq -= dev->real_num_tx_queues;
-
-	return txq;
-}
-
 static const struct net_device_ops virtnet_netdev = {
 	.ndo_open            = virtnet_open,
 	.ndo_stop   	     = virtnet_close,
@@ -1302,7 +1266,6 @@ static const struct net_device_ops virtnet_netdev = {
 	.ndo_get_stats64     = virtnet_stats,
 	.ndo_vlan_rx_add_vid = virtnet_vlan_rx_add_vid,
 	.ndo_vlan_rx_kill_vid = virtnet_vlan_rx_kill_vid,
-	.ndo_select_queue     = virtnet_select_queue,
 #ifdef CONFIG_NET_POLL_CONTROLLER
 	.ndo_poll_controller = virtnet_netpoll,
 #endif
@@ -1613,10 +1576,6 @@ static int virtnet_probe(struct virtio_device *vdev)
 	if (vi->stats == NULL)
 		goto free;
 
-	vi->vq_index = alloc_percpu(int);
-	if (vi->vq_index == NULL)
-		goto free_stats;
-
 	mutex_init(&vi->config_lock);
 	vi->config_enable = true;
 	INIT_WORK(&vi->config_work, virtnet_config_changed_work);
@@ -1643,7 +1602,7 @@ static int virtnet_probe(struct virtio_device *vdev)
 	/* Allocate/initialize the rx/tx queues, and invoke find_vqs */
 	err = init_vqs(vi);
 	if (err)
-		goto free_index;
+		goto free_stats;
 
 	netif_set_real_num_tx_queues(dev, 1);
 	netif_set_real_num_rx_queues(dev, 1);
@@ -1696,8 +1655,6 @@ free_vqs:
 	virtnet_del_vqs(vi);
 	if (vi->alloc_frag.page)
 		put_page(vi->alloc_frag.page);
-free_index:
-	free_percpu(vi->vq_index);
 free_stats:
 	free_percpu(vi->stats);
 free:
@@ -1736,7 +1693,6 @@ static void virtnet_remove(struct virtio_device *vdev)
 
 	flush_work(&vi->config_work);
 
-	free_percpu(vi->vq_index);
 	free_percpu(vi->stats);
 	free_netdev(vi->dev);
 }
-- 
cgit 


From 6855e95ce3256cdb5f4fbc988fe8ee925b051ef7 Mon Sep 17 00:00:00 2001
From: Christoph Lameter <cl@linux.com>
Date: Wed, 28 Aug 2013 19:48:15 +0000
Subject: arc: Replace __get_cpu_var uses

__get_cpu_var() is used for multiple purposes in the kernel source. One of them is
address calculation via the form &__get_cpu_var(x). This calculates the address for
the instance of the percpu variable of the current processor based on an offset.

Other use cases are for storing and retrieving data from the current processors percpu area.
__get_cpu_var() can be used as an lvalue when writing data or on the right side of an assignment.

__get_cpu_var() is defined as :

#define __get_cpu_var(var) (*this_cpu_ptr(&(var)))

__get_cpu_var() always only does an address determination. However, store and retrieve operations
could use a segment prefix (or global register on other platforms) to avoid the address calculation.

this_cpu_write() and this_cpu_read() can directly take an offset into a percpu area and use
optimized assembly code to read and write per cpu variables.

This patch converts __get_cpu_var into either an explicit address calculation using this_cpu_ptr()
or into a use of this_cpu operations that use the offset. Thereby address calcualtions are avoided
and less registers are used when code is generated.

At the end of the patchset all uses of __get_cpu_var have been removed so the macro is removed too.

The patchset includes passes over all arches as well. Once these operations are used throughout then
specialized macros can be defined in non -x86 arches as well in order to optimize per cpu access by
f.e. using a global register that may be set to the per cpu base.

Transformations done to __get_cpu_var()

1. Determine the address of the percpu instance of the current processor.

	DEFINE_PER_CPU(int, y);
	int *x = &__get_cpu_var(y);

    Converts to

	int *x = this_cpu_ptr(&y);

2. Same as #1 but this time an array structure is involved.

	DEFINE_PER_CPU(int, y[20]);
	int *x = __get_cpu_var(y);

    Converts to

	int *x = this_cpu_ptr(y);

3. Retrieve the content of the current processors instance of a per cpu variable.

	DEFINE_PER_CPU(int, u);
	int x = __get_cpu_var(y)

   Converts to

	int x = __this_cpu_read(y);

4. Retrieve the content of a percpu struct

	DEFINE_PER_CPU(struct mystruct, y);
	struct mystruct x = __get_cpu_var(y);

   Converts to

	memcpy(this_cpu_ptr(&x), y, sizeof(x));

5. Assignment to a per cpu variable

	DEFINE_PER_CPU(int, y)
	__get_cpu_var(y) = x;

   Converts to

	this_cpu_write(y, x);

6. Increment/Decrement etc of a per cpu variable

	DEFINE_PER_CPU(int, y);
	__get_cpu_var(y)++

   Converts to

	this_cpu_inc(y)

Acked-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
---
 arch/arc/kernel/kprobes.c | 6 +++---
 arch/arc/kernel/time.c    | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arc/kernel/kprobes.c b/arch/arc/kernel/kprobes.c
index 72f97822784a..eb1c2ee5eaf0 100644
--- a/arch/arc/kernel/kprobes.c
+++ b/arch/arc/kernel/kprobes.c
@@ -87,13 +87,13 @@ static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb)
 
 static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb)
 {
-	__get_cpu_var(current_kprobe) = kcb->prev_kprobe.kp;
+	__this_cpu_write(current_kprobe, kcb->prev_kprobe.kp);
 	kcb->kprobe_status = kcb->prev_kprobe.status;
 }
 
 static inline void __kprobes set_current_kprobe(struct kprobe *p)
 {
-	__get_cpu_var(current_kprobe) = p;
+	__this_cpu_write(current_kprobe, p);
 }
 
 static void __kprobes resume_execution(struct kprobe *p, unsigned long addr,
@@ -237,7 +237,7 @@ int __kprobes arc_kprobe_handler(unsigned long addr, struct pt_regs *regs)
 
 		return 1;
 	} else if (kprobe_running()) {
-		p = __get_cpu_var(current_kprobe);
+		p = __this_cpu_read(current_kprobe);
 		if (p->break_handler && p->break_handler(p, regs)) {
 			setup_singlestep(p, regs);
 			kcb->kprobe_status = KPROBE_HIT_SS;
diff --git a/arch/arc/kernel/time.c b/arch/arc/kernel/time.c
index 3fde7de3ea67..4c21dde2f6a9 100644
--- a/arch/arc/kernel/time.c
+++ b/arch/arc/kernel/time.c
@@ -206,7 +206,7 @@ static DEFINE_PER_CPU(struct clock_event_device, arc_clockevent_device) = {
 
 static irqreturn_t timer_irq_handler(int irq, void *dev_id)
 {
-	struct clock_event_device *clk = &__get_cpu_var(arc_clockevent_device);
+	struct clock_event_device *clk = this_cpu_ptr(&arc_clockevent_device);
 
 	arc_timer_event_ack(clk->mode == CLOCK_EVT_MODE_PERIODIC);
 	clk->event_handler(clk);
-- 
cgit 


From 8e457d6a75421372c7721388c46d21381fd5b451 Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Wed, 4 Sep 2013 16:13:35 +0530
Subject: ARC: Annotate some functions as static

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/kernel/setup.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c
index 2c68bc7e6a78..d9e15f16633e 100644
--- a/arch/arc/kernel/setup.c
+++ b/arch/arc/kernel/setup.c
@@ -37,8 +37,7 @@ struct task_struct *_current_task[NR_CPUS];	/* For stack switching */
 
 struct cpuinfo_arc cpuinfo_arc700[NR_CPUS];
 
-
-void read_arc_build_cfg_regs(void)
+static void read_arc_build_cfg_regs(void)
 {
 	struct bcr_perip uncached_space;
 	struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()];
@@ -106,7 +105,7 @@ static const struct cpuinfo_data arc_cpu_tbl[] = {
 	{ {0x00, NULL		} }
 };
 
-char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len)
+static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len)
 {
 	int n = 0;
 	struct cpuinfo_arc *cpu = &cpuinfo_arc700[cpu_id];
@@ -171,7 +170,7 @@ static const struct id_to_str mac_mul_nm[] = {
 	{0x6, "Dual 16x16 and 32x16"}
 };
 
-char *arc_extn_mumbojumbo(int cpu_id, char *buf, int len)
+static char *arc_extn_mumbojumbo(int cpu_id, char *buf, int len)
 {
 	int n = 0;
 	struct cpuinfo_arc *cpu = &cpuinfo_arc700[cpu_id];
@@ -234,7 +233,7 @@ char *arc_extn_mumbojumbo(int cpu_id, char *buf, int len)
 	return buf;
 }
 
-void arc_chk_ccms(void)
+static void arc_chk_ccms(void)
 {
 #if defined(CONFIG_ARC_HAS_DCCM) || defined(CONFIG_ARC_HAS_ICCM)
 	struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()];
@@ -269,7 +268,7 @@ void arc_chk_ccms(void)
  * hardware has dedicated regs which need to be saved/restored on ctx-sw
  * (Single Precision uses core regs), thus kernel is kind of oblivious to it
  */
-void arc_chk_fpu(void)
+static void arc_chk_fpu(void)
 {
 	struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()];
 
-- 
cgit 


From 064a6269245655b15054ad9783bca9bfd8dc1f9e Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Thu, 31 Oct 2013 13:53:54 +0530
Subject: ARC: use __weak instead of __attribute__((weak))

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/kernel/smp.c  | 2 +-
 arch/arc/kernel/time.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
index bca3052c956d..7f0ab1ecd640 100644
--- a/arch/arc/kernel/smp.c
+++ b/arch/arc/kernel/smp.c
@@ -95,7 +95,7 @@ void __init smp_cpus_done(unsigned int max_cpus)
  *        If it turns out to be elaborate, it's better to code it in assembly
  *
  */
-void __attribute__((weak)) arc_platform_smp_wait_to_boot(int cpu)
+void __weak arc_platform_smp_wait_to_boot(int cpu)
 {
 	/*
 	 * As a hack for debugging - since debugger will single-step over the
diff --git a/arch/arc/kernel/time.c b/arch/arc/kernel/time.c
index 4c21dde2f6a9..0a9b6b289c4f 100644
--- a/arch/arc/kernel/time.c
+++ b/arch/arc/kernel/time.c
@@ -223,7 +223,7 @@ static struct irqaction arc_timer_irq = {
  * Setup the local event timer for @cpu
  * N.B. weak so that some exotic ARC SoCs can completely override it
  */
-void __attribute__((weak)) arc_local_timer_setup(unsigned int cpu)
+void __weak arc_local_timer_setup(unsigned int cpu)
 {
 	struct clock_event_device *clk = &per_cpu(arc_clockevent_device, cpu);
 
-- 
cgit 


From f3e4de327403cee6f76c0dca1b45d6fb0b08daf4 Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Thu, 5 Sep 2013 13:03:35 +0530
Subject: ARC: cacheflush refactor #1: push aux reg ascertaining into leaf
 routine

ARC dcache supports 3 ops - Inv, Flush, Flush-n-Inv.
The programming model however provides 2 commands FLUSH, INV.
INV will either discard or flush-n-discard (based on DT_CTRL bit)

The leaf helper __dc_line_loop() used to take the AUX register
(corresponding to the 2 commands). Now we push that to within the
helper, paving way for code consolidations to follow.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/mm/cache_arc700.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/arch/arc/mm/cache_arc700.c b/arch/arc/mm/cache_arc700.c
index 5a1259cd948c..2787e5a2c306 100644
--- a/arch/arc/mm/cache_arc700.c
+++ b/arch/arc/mm/cache_arc700.c
@@ -296,8 +296,10 @@ static inline void __dc_entire_op(const int cacheop)
  * (aliasing VIPT dcache flushing needs both vaddr and paddr)
  */
 static inline void __dc_line_loop(unsigned long paddr, unsigned long vaddr,
-				  unsigned long sz, const int aux_reg)
+				  unsigned long sz, const int cacheop)
 {
+	/* which MMU cmd: INV (discard or wback-n-discard) OR FLUSH (wback) */
+	const int aux = cacheop & OP_INV ? ARC_REG_DC_IVDL : ARC_REG_DC_FLDL;
 	int num_lines;
 
 	/* Ensure we properly floor/ceil the non-line aligned/sized requests
@@ -326,11 +328,11 @@ static inline void __dc_line_loop(unsigned long paddr, unsigned long vaddr,
 		 */
 		write_aux_reg(ARC_REG_DC_PTAG, paddr);
 
-		write_aux_reg(aux_reg, vaddr);
+		write_aux_reg(aux, vaddr);
 		vaddr += ARC_DCACHE_LINE_LEN;
 #else
 		/* paddr contains stuffed vaddrs bits */
-		write_aux_reg(aux_reg, paddr);
+		write_aux_reg(aux, paddr);
 #endif
 		paddr += ARC_DCACHE_LINE_LEN;
 	}
@@ -346,7 +348,6 @@ static inline void __dc_line_op(unsigned long paddr, unsigned long vaddr,
 				unsigned long sz, const int cacheop)
 {
 	unsigned long flags, tmp = tmp;
-	int aux;
 
 	local_irq_save(flags);
 
@@ -361,12 +362,7 @@ static inline void __dc_line_op(unsigned long paddr, unsigned long vaddr,
 		write_aux_reg(ARC_REG_DC_CTRL, tmp | DC_CTRL_INV_MODE_FLUSH);
 	}
 
-	if (cacheop & OP_INV)	/* Inv / flush-n-inv use same cmd reg */
-		aux = ARC_REG_DC_IVDL;
-	else
-		aux = ARC_REG_DC_FLDL;
-
-	__dc_line_loop(paddr, vaddr, sz, aux);
+	__dc_line_loop(paddr, vaddr, sz, cacheop);
 
 	if (cacheop & OP_FLUSH)	/* flush / flush-n-inv both wait */
 		wait_for_flush();
-- 
cgit 


From 63d2dfdbf4b12a6993adf5005fd308d611d453d6 Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Thu, 5 Sep 2013 13:17:49 +0530
Subject: ARC: cacheflush refactor #2: I and D caches lines to have same size

Having them be different seems an obscure configuration.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/include/asm/cache.h |  8 +-------
 arch/arc/mm/cache_arc700.c   | 30 +++++++++++++++---------------
 2 files changed, 16 insertions(+), 22 deletions(-)

diff --git a/arch/arc/include/asm/cache.h b/arch/arc/include/asm/cache.h
index e4abdaac6f9f..2fd3162ec4df 100644
--- a/arch/arc/include/asm/cache.h
+++ b/arch/arc/include/asm/cache.h
@@ -17,13 +17,7 @@
 #endif
 
 #define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
-
-/* For a rare case where customers have differently config I/D */
-#define ARC_ICACHE_LINE_LEN	L1_CACHE_BYTES
-#define ARC_DCACHE_LINE_LEN	L1_CACHE_BYTES
-
-#define ICACHE_LINE_MASK	(~(ARC_ICACHE_LINE_LEN - 1))
-#define DCACHE_LINE_MASK	(~(ARC_DCACHE_LINE_LEN - 1))
+#define CACHE_LINE_MASK		(~(L1_CACHE_BYTES - 1))
 
 /*
  * ARC700 doesn't cache any access in top 256M.
diff --git a/arch/arc/mm/cache_arc700.c b/arch/arc/mm/cache_arc700.c
index 2787e5a2c306..0be5b2075701 100644
--- a/arch/arc/mm/cache_arc700.c
+++ b/arch/arc/mm/cache_arc700.c
@@ -182,7 +182,7 @@ void arc_cache_init(void)
 
 #ifdef CONFIG_ARC_HAS_ICACHE
 	/* 1. Confirm some of I-cache params which Linux assumes */
-	if (ic->line_len != ARC_ICACHE_LINE_LEN)
+	if (ic->line_len != L1_CACHE_BYTES)
 		panic("Cache H/W doesn't match kernel Config");
 
 	if (ic->ver != CONFIG_ARC_MMU_VER)
@@ -205,7 +205,7 @@ chk_dc:
 		return;
 
 #ifdef CONFIG_ARC_HAS_DCACHE
-	if (dc->line_len != ARC_DCACHE_LINE_LEN)
+	if (dc->line_len != L1_CACHE_BYTES)
 		panic("Cache H/W doesn't match kernel Config");
 
 	/* check for D-Cache aliasing */
@@ -298,7 +298,7 @@ static inline void __dc_entire_op(const int cacheop)
 static inline void __dc_line_loop(unsigned long paddr, unsigned long vaddr,
 				  unsigned long sz, const int cacheop)
 {
-	/* which MMU cmd: INV (discard or wback-n-discard) OR FLUSH (wback) */
+	/* d$ cmd: INV (discard or wback-n-discard) OR FLUSH (wback) */
 	const int aux = cacheop & OP_INV ? ARC_REG_DC_IVDL : ARC_REG_DC_FLDL;
 	int num_lines;
 
@@ -309,12 +309,12 @@ static inline void __dc_line_loop(unsigned long paddr, unsigned long vaddr,
 	 *  -@sz will be integral multiple of line size (being page sized).
 	 */
 	if (!(__builtin_constant_p(sz) && sz == PAGE_SIZE)) {
-		sz += paddr & ~DCACHE_LINE_MASK;
-		paddr &= DCACHE_LINE_MASK;
-		vaddr &= DCACHE_LINE_MASK;
+		sz += paddr & ~CACHE_LINE_MASK;
+		paddr &= CACHE_LINE_MASK;
+		vaddr &= CACHE_LINE_MASK;
 	}
 
-	num_lines = DIV_ROUND_UP(sz, ARC_DCACHE_LINE_LEN);
+	num_lines = DIV_ROUND_UP(sz, L1_CACHE_BYTES);
 
 #if (CONFIG_ARC_MMU_VER <= 2)
 	paddr |= (vaddr >> PAGE_SHIFT) & 0x1F;
@@ -329,12 +329,12 @@ static inline void __dc_line_loop(unsigned long paddr, unsigned long vaddr,
 		write_aux_reg(ARC_REG_DC_PTAG, paddr);
 
 		write_aux_reg(aux, vaddr);
-		vaddr += ARC_DCACHE_LINE_LEN;
+		vaddr += L1_CACHE_BYTES;
 #else
 		/* paddr contains stuffed vaddrs bits */
 		write_aux_reg(aux, paddr);
 #endif
-		paddr += ARC_DCACHE_LINE_LEN;
+		paddr += L1_CACHE_BYTES;
 	}
 }
 
@@ -443,12 +443,12 @@ static void __ic_line_inv_vaddr(unsigned long paddr, unsigned long vaddr,
 	 *  -@sz will be integral multiple of line size (being page sized).
 	 */
 	if (!(__builtin_constant_p(sz) && sz == PAGE_SIZE)) {
-		sz += paddr & ~ICACHE_LINE_MASK;
-		paddr &= ICACHE_LINE_MASK;
-		vaddr &= ICACHE_LINE_MASK;
+		sz += paddr & ~CACHE_LINE_MASK;
+		paddr &= CACHE_LINE_MASK;
+		vaddr &= CACHE_LINE_MASK;
 	}
 
-	num_lines = DIV_ROUND_UP(sz, ARC_ICACHE_LINE_LEN);
+	num_lines = DIV_ROUND_UP(sz, L1_CACHE_BYTES);
 
 #if (CONFIG_ARC_MMU_VER <= 2)
 	/* bits 17:13 of vaddr go as bits 4:0 of paddr */
@@ -463,12 +463,12 @@ static void __ic_line_inv_vaddr(unsigned long paddr, unsigned long vaddr,
 
 		/* index bits come from vaddr */
 		write_aux_reg(ARC_REG_IC_IVIL, vaddr);
-		vaddr += ARC_ICACHE_LINE_LEN;
+		vaddr += L1_CACHE_BYTES;
 #else
 		/* paddr contains stuffed vaddrs bits */
 		write_aux_reg(ARC_REG_IC_IVIL, paddr);
 #endif
-		paddr += ARC_ICACHE_LINE_LEN;
+		paddr += L1_CACHE_BYTES;
 	}
 	local_irq_restore(flags);
 }
-- 
cgit 


From bd12976c366486ea90aebd83f1cf2863ee47c76a Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Thu, 5 Sep 2013 13:43:03 +0530
Subject: ARC: cacheflush refactor #3: Unify the {d,i}cache flush leaf helpers

With Line length being constant now, we can fold the 2 helpers into 1.
This allows applying any optimizations (forthcoming) to single place.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/mm/cache_arc700.c | 139 ++++++++++++++++++---------------------------
 1 file changed, 55 insertions(+), 84 deletions(-)

diff --git a/arch/arc/mm/cache_arc700.c b/arch/arc/mm/cache_arc700.c
index 0be5b2075701..a152f3263ac0 100644
--- a/arch/arc/mm/cache_arc700.c
+++ b/arch/arc/mm/cache_arc700.c
@@ -240,6 +240,59 @@ chk_dc:
 #define OP_INV		0x1
 #define OP_FLUSH	0x2
 #define OP_FLUSH_N_INV	0x3
+#define OP_INV_IC	0x4
+
+/*
+ * Common Helper for Line Operations on {I,D}-Cache
+ */
+static inline void __cache_line_loop(unsigned long paddr, unsigned long vaddr,
+				     unsigned long sz, const int cacheop)
+{
+	unsigned int aux_cmd, aux_tag;
+	int num_lines;
+
+	if (cacheop == OP_INV_IC) {
+		aux_cmd = ARC_REG_IC_IVIL;
+		aux_tag = ARC_REG_IC_PTAG;
+	}
+	else {
+		/* d$ cmd: INV (discard or wback-n-discard) OR FLUSH (wback) */
+		aux_cmd = cacheop & OP_INV ? ARC_REG_DC_IVDL : ARC_REG_DC_FLDL;
+		aux_tag = ARC_REG_DC_PTAG;
+	}
+
+	/* Ensure we properly floor/ceil the non-line aligned/sized requests
+	 * and have @paddr - aligned to cache line and integral @num_lines.
+	 * This however can be avoided for page sized since:
+	 *  -@paddr will be cache-line aligned already (being page aligned)
+	 *  -@sz will be integral multiple of line size (being page sized).
+	 */
+	if (!(__builtin_constant_p(sz) && sz == PAGE_SIZE)) {
+		sz += paddr & ~CACHE_LINE_MASK;
+		paddr &= CACHE_LINE_MASK;
+		vaddr &= CACHE_LINE_MASK;
+	}
+
+	num_lines = DIV_ROUND_UP(sz, L1_CACHE_BYTES);
+
+#if (CONFIG_ARC_MMU_VER <= 2)
+	/* MMUv2 and before: paddr contains stuffed vaddrs bits */
+	paddr |= (vaddr >> PAGE_SHIFT) & 0x1F;
+#endif
+
+	while (num_lines-- > 0) {
+#if (CONFIG_ARC_MMU_VER > 2)
+		/* MMUv3, cache ops require paddr seperately */
+		write_aux_reg(ARC_REG_DC_PTAG, paddr);
+
+		write_aux_reg(aux_cmd, vaddr);
+		vaddr += L1_CACHE_BYTES;
+#else
+		write_aux_reg(aux, paddr);
+#endif
+		paddr += L1_CACHE_BYTES;
+	}
+}
 
 #ifdef CONFIG_ARC_HAS_DCACHE
 
@@ -289,55 +342,6 @@ static inline void __dc_entire_op(const int cacheop)
 		write_aux_reg(ARC_REG_DC_CTRL, tmp & ~DC_CTRL_INV_MODE_FLUSH);
 }
 
-/*
- * Per Line Operation on D-Cache
- * Doesn't deal with type-of-op/IRQ-disabling/waiting-for-flush-to-complete
- * It's sole purpose is to help gcc generate ZOL
- * (aliasing VIPT dcache flushing needs both vaddr and paddr)
- */
-static inline void __dc_line_loop(unsigned long paddr, unsigned long vaddr,
-				  unsigned long sz, const int cacheop)
-{
-	/* d$ cmd: INV (discard or wback-n-discard) OR FLUSH (wback) */
-	const int aux = cacheop & OP_INV ? ARC_REG_DC_IVDL : ARC_REG_DC_FLDL;
-	int num_lines;
-
-	/* Ensure we properly floor/ceil the non-line aligned/sized requests
-	 * and have @paddr - aligned to cache line and integral @num_lines.
-	 * This however can be avoided for page sized since:
-	 *  -@paddr will be cache-line aligned already (being page aligned)
-	 *  -@sz will be integral multiple of line size (being page sized).
-	 */
-	if (!(__builtin_constant_p(sz) && sz == PAGE_SIZE)) {
-		sz += paddr & ~CACHE_LINE_MASK;
-		paddr &= CACHE_LINE_MASK;
-		vaddr &= CACHE_LINE_MASK;
-	}
-
-	num_lines = DIV_ROUND_UP(sz, L1_CACHE_BYTES);
-
-#if (CONFIG_ARC_MMU_VER <= 2)
-	paddr |= (vaddr >> PAGE_SHIFT) & 0x1F;
-#endif
-
-	while (num_lines-- > 0) {
-#if (CONFIG_ARC_MMU_VER > 2)
-		/*
-		 * Just as for I$, in MMU v3, D$ ops also require
-		 * "tag" bits in DC_PTAG, "index" bits in FLDL,IVDL ops
-		 */
-		write_aux_reg(ARC_REG_DC_PTAG, paddr);
-
-		write_aux_reg(aux, vaddr);
-		vaddr += L1_CACHE_BYTES;
-#else
-		/* paddr contains stuffed vaddrs bits */
-		write_aux_reg(aux, paddr);
-#endif
-		paddr += L1_CACHE_BYTES;
-	}
-}
-
 /* For kernel mappings cache operation: index is same as paddr */
 #define __dc_line_op_k(p, sz, op)	__dc_line_op(p, p, sz, op)
 
@@ -362,7 +366,7 @@ static inline void __dc_line_op(unsigned long paddr, unsigned long vaddr,
 		write_aux_reg(ARC_REG_DC_CTRL, tmp | DC_CTRL_INV_MODE_FLUSH);
 	}
 
-	__dc_line_loop(paddr, vaddr, sz, cacheop);
+	__cache_line_loop(paddr, vaddr, sz, cacheop);
 
 	if (cacheop & OP_FLUSH)	/* flush / flush-n-inv both wait */
 		wait_for_flush();
@@ -434,42 +438,9 @@ static void __ic_line_inv_vaddr(unsigned long paddr, unsigned long vaddr,
 				unsigned long sz)
 {
 	unsigned long flags;
-	int num_lines;
-
-	/*
-	 * Ensure we properly floor/ceil the non-line aligned/sized requests:
-	 * However page sized flushes can be compile time optimised.
-	 *  -@paddr will be cache-line aligned already (being page aligned)
-	 *  -@sz will be integral multiple of line size (being page sized).
-	 */
-	if (!(__builtin_constant_p(sz) && sz == PAGE_SIZE)) {
-		sz += paddr & ~CACHE_LINE_MASK;
-		paddr &= CACHE_LINE_MASK;
-		vaddr &= CACHE_LINE_MASK;
-	}
-
-	num_lines = DIV_ROUND_UP(sz, L1_CACHE_BYTES);
-
-#if (CONFIG_ARC_MMU_VER <= 2)
-	/* bits 17:13 of vaddr go as bits 4:0 of paddr */
-	paddr |= (vaddr >> PAGE_SHIFT) & 0x1F;
-#endif
 
 	local_irq_save(flags);
-	while (num_lines-- > 0) {
-#if (CONFIG_ARC_MMU_VER > 2)
-		/* tag comes from phy addr */
-		write_aux_reg(ARC_REG_IC_PTAG, paddr);
-
-		/* index bits come from vaddr */
-		write_aux_reg(ARC_REG_IC_IVIL, vaddr);
-		vaddr += L1_CACHE_BYTES;
-#else
-		/* paddr contains stuffed vaddrs bits */
-		write_aux_reg(ARC_REG_IC_IVIL, paddr);
-#endif
-		paddr += L1_CACHE_BYTES;
-	}
+	__cache_line_loop(paddr, vaddr, sz, OP_INV_IC);
 	local_irq_restore(flags);
 }
 
-- 
cgit 


From d4599baf5c773660f32ee6bc35c1afab009a52d9 Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Thu, 5 Sep 2013 14:45:51 +0530
Subject: ARC: cacheflush optim - PTAG can be loop invariant if V-P is const

Line op needs vaddr (indexing) and paddr (tag match). For page sized
flushes (V-P const), each line op will need a different index, but the
tag bits wil remain constant, hence paddr can be setup once outside the
loop.

This improves select LMBench numbers for Aliasing dcache where we have
more "preventive" cache flushing.

Processor, Processes - times in microseconds - smaller is better
------------------------------------------------------------------------------
Host                 OS  Mhz null null      open slct sig  sig  fork exec sh
                             call  I/O stat clos TCP  inst hndl proc proc proc
--------- ------------- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
3.11-rc7- Linux 3.11.0-   80 4.66 8.88 69.7 112. 268. 8.60 28.0 3489 13.K 27.K	# Non alias ARC700
3.11-rc7- Linux 3.11.0-   80 4.64 8.51 68.6 98.5 271. 8.58 28.1 4160 15.K 32.K	# Aliasing
3.11-rc7- Linux 3.11.0-   80 4.64 8.51 69.8 99.4 270. 8.73 27.5 3880 15.K 31.K	# PTAG loop Inv

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/mm/cache_arc700.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/arch/arc/mm/cache_arc700.c b/arch/arc/mm/cache_arc700.c
index a152f3263ac0..6b58c1de7577 100644
--- a/arch/arc/mm/cache_arc700.c
+++ b/arch/arc/mm/cache_arc700.c
@@ -250,6 +250,7 @@ static inline void __cache_line_loop(unsigned long paddr, unsigned long vaddr,
 {
 	unsigned int aux_cmd, aux_tag;
 	int num_lines;
+	const int full_page_op = __builtin_constant_p(sz) && sz == PAGE_SIZE;
 
 	if (cacheop == OP_INV_IC) {
 		aux_cmd = ARC_REG_IC_IVIL;
@@ -267,7 +268,7 @@ static inline void __cache_line_loop(unsigned long paddr, unsigned long vaddr,
 	 *  -@paddr will be cache-line aligned already (being page aligned)
 	 *  -@sz will be integral multiple of line size (being page sized).
 	 */
-	if (!(__builtin_constant_p(sz) && sz == PAGE_SIZE)) {
+	if (!full_page_op) {
 		sz += paddr & ~CACHE_LINE_MASK;
 		paddr &= CACHE_LINE_MASK;
 		vaddr &= CACHE_LINE_MASK;
@@ -278,19 +279,26 @@ static inline void __cache_line_loop(unsigned long paddr, unsigned long vaddr,
 #if (CONFIG_ARC_MMU_VER <= 2)
 	/* MMUv2 and before: paddr contains stuffed vaddrs bits */
 	paddr |= (vaddr >> PAGE_SHIFT) & 0x1F;
+#else
+	/* if V-P const for loop, PTAG can be written once outside loop */
+	if (full_page_op)
+		write_aux_reg(ARC_REG_DC_PTAG, paddr);
 #endif
 
 	while (num_lines-- > 0) {
 #if (CONFIG_ARC_MMU_VER > 2)
 		/* MMUv3, cache ops require paddr seperately */
-		write_aux_reg(ARC_REG_DC_PTAG, paddr);
+		if (!full_page_op) {
+			write_aux_reg(aux_tag, paddr);
+			paddr += L1_CACHE_BYTES;
+		}
 
 		write_aux_reg(aux_cmd, vaddr);
 		vaddr += L1_CACHE_BYTES;
 #else
 		write_aux_reg(aux, paddr);
-#endif
 		paddr += L1_CACHE_BYTES;
+#endif
 	}
 }
 
-- 
cgit 


From 21a63b56044706aa37637315dd27d9d465bbd5c4 Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Wed, 18 Sep 2013 16:25:40 +0530
Subject: ARC: Change calling convention of do_page_fault()

switch the args (address, pt_regs) to match with all the other "C"
exception handlers.

This removes the awkwardness in EV_ProtV for page fault vs. unaligned
access.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/kernel/entry.S | 9 ++++-----
 arch/arc/mm/fault.c     | 2 +-
 arch/arc/mm/tlbex.S     | 4 ++--
 3 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/arch/arc/kernel/entry.S b/arch/arc/kernel/entry.S
index b908dde8a331..eb3f3c5a700a 100644
--- a/arch/arc/kernel/entry.S
+++ b/arch/arc/kernel/entry.S
@@ -337,9 +337,9 @@ ARC_ENTRY EV_TLBProtV
 	;  vineetg: Mar 6th: Random Seg Fault issue #1
 	;  ecr and efa were not saved in case an Intr sneaks in
 	;  after fake rtie
-	;
+
 	lr  r2, [ecr]
-	lr  r1, [efa]	; Faulting Data address
+	lr  r0, [efa]	; Faulting Data address
 
 	; --------(4) Return from CPU Exception Mode ---------
 	;  Fake a rtie, but rtie to next label
@@ -348,6 +348,8 @@ ARC_ENTRY EV_TLBProtV
 
 	FAKE_RET_FROM_EXCPN r9
 
+	mov   r1, sp
+
 	;------ (5) Type of Protection Violation? ----------
 	;
 	; ProtV Hardware Exception is triggered for Access Faults of 2 types
@@ -358,14 +360,11 @@ ARC_ENTRY EV_TLBProtV
 	bbit1 r2, ECR_C_BIT_PROTV_MISALIG_DATA, 4f
 
 	;========= (6a) Access Violation Processing ========
-	mov r0, sp              ; pt_regs
 	bl  do_page_fault
 	b   ret_from_exception
 
 	;========== (6b) Non aligned access ============
 4:
-	mov r0, r1
-	mov r1, sp              ; pt_regs
 
 #ifdef  CONFIG_ARC_MISALIGN_ACCESS
 	SAVE_CALLEE_SAVED_USER
diff --git a/arch/arc/mm/fault.c b/arch/arc/mm/fault.c
index 0c14d8a52683..9c69552350c4 100644
--- a/arch/arc/mm/fault.c
+++ b/arch/arc/mm/fault.c
@@ -52,7 +52,7 @@ bad_area:
 	return 1;
 }
 
-void do_page_fault(struct pt_regs *regs, unsigned long address)
+void do_page_fault(unsigned long address, struct pt_regs *regs)
 {
 	struct vm_area_struct *vma = NULL;
 	struct task_struct *tsk = current;
diff --git a/arch/arc/mm/tlbex.S b/arch/arc/mm/tlbex.S
index cf7d7d9ad695..3fcfdb38d242 100644
--- a/arch/arc/mm/tlbex.S
+++ b/arch/arc/mm/tlbex.S
@@ -369,8 +369,8 @@ do_slow_path_pf:
 	EXCEPTION_PROLOGUE
 
 	; ------- setup args for Linux Page fault Hanlder ---------
-	mov_s r0, sp
-	lr  r1, [efa]
+	mov_s r1, sp
+	lr    r0, [efa]
 
 	; We don't want exceptions to be disabled while the fault is handled.
 	; Now that we have saved the context we return from exception hence
-- 
cgit 


From 07ba69a46c3394fe6675483275337e5a79a959e0 Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Wed, 18 Sep 2013 18:08:01 +0530
Subject: ARC: Reduce #ifdef'ery for unaligned access emulation

Emulation not enabled is treated as if the fixup failed, so no need for
special #ifdef checks.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/include/asm/unaligned.h | 3 ++-
 arch/arc/kernel/entry.S          | 4 ----
 arch/arc/kernel/traps.c          | 3 +--
 3 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/arch/arc/include/asm/unaligned.h b/arch/arc/include/asm/unaligned.h
index 60702f3751d2..3e5f071bc00c 100644
--- a/arch/arc/include/asm/unaligned.h
+++ b/arch/arc/include/asm/unaligned.h
@@ -22,7 +22,8 @@ static inline int
 misaligned_fixup(unsigned long address, struct pt_regs *regs,
 		 struct callee_regs *cregs)
 {
-	return 0;
+	/* Not fixed */
+	return 1;
 }
 #endif
 
diff --git a/arch/arc/kernel/entry.S b/arch/arc/kernel/entry.S
index eb3f3c5a700a..daa0e7990270 100644
--- a/arch/arc/kernel/entry.S
+++ b/arch/arc/kernel/entry.S
@@ -366,7 +366,6 @@ ARC_ENTRY EV_TLBProtV
 	;========== (6b) Non aligned access ============
 4:
 
-#ifdef  CONFIG_ARC_MISALIGN_ACCESS
 	SAVE_CALLEE_SAVED_USER
 	mov r2, sp              ; callee_regs
 
@@ -375,9 +374,6 @@ ARC_ENTRY EV_TLBProtV
 	; TBD: optimize - do this only if a callee reg was involved
 	; either a dst of emulated LD/ST or src with address-writeback
 	RESTORE_CALLEE_SAVED_USER
-#else
-	bl  do_misaligned_error
-#endif
 
 	b   ret_from_exception
 
diff --git a/arch/arc/kernel/traps.c b/arch/arc/kernel/traps.c
index e21692d2fdab..3eadfdabc322 100644
--- a/arch/arc/kernel/traps.c
+++ b/arch/arc/kernel/traps.c
@@ -84,19 +84,18 @@ DO_ERROR_INFO(SIGBUS, "Invalid Mem Access", do_memory_error, BUS_ADRERR)
 DO_ERROR_INFO(SIGTRAP, "Breakpoint Set", trap_is_brkpt, TRAP_BRKPT)
 DO_ERROR_INFO(SIGBUS, "Misaligned Access", do_misaligned_error, BUS_ADRALN)
 
-#ifdef CONFIG_ARC_MISALIGN_ACCESS
 /*
  * Entry Point for Misaligned Data access Exception, for emulating in software
  */
 int do_misaligned_access(unsigned long address, struct pt_regs *regs,
 			 struct callee_regs *cregs)
 {
+	/* If emulation not enabled, or failed, kill the task */
 	if (misaligned_fixup(address, regs, cregs) != 0)
 		return do_misaligned_error(address, regs);
 
 	return 0;
 }
-#endif
 
 /*
  * Entry point for miscll errors such as Nested Exceptions
-- 
cgit 


From 54c8bff14d604de23d0718eee59c5436a4703fe5 Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Thu, 12 Sep 2013 13:53:06 +0530
Subject: ARC: Reset the value of Interrupt Priority Register

In case bootloader has changed the priority of one/more IRQ lines

Reported-by: Noam Camus <noamc@ezchip.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/kernel/irq.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/arch/arc/kernel/irq.c b/arch/arc/kernel/irq.c
index 5fc92455da36..02684e1a0cf0 100644
--- a/arch/arc/kernel/irq.c
+++ b/arch/arc/kernel/irq.c
@@ -39,10 +39,14 @@ void arc_init_IRQ(void)
 	level_mask |= IS_ENABLED(CONFIG_ARC_IRQ5_LV2) << 5;
 	level_mask |= IS_ENABLED(CONFIG_ARC_IRQ6_LV2) << 6;
 
-	if (level_mask) {
+	/*
+	 * Write to register, even if no LV2 IRQs configured to reset it
+	 * in case bootloader had mucked with it
+	 */
+	write_aux_reg(AUX_IRQ_LEV, level_mask);
+
+	if (level_mask)
 		pr_info("Level-2 interrupts bitset %x\n", level_mask);
-		write_aux_reg(AUX_IRQ_LEV, level_mask);
-	}
 }
 
 /*
-- 
cgit 


From 0dafafc3ef42bad34fd446725cb9778c3bdd83a8 Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Fri, 6 Sep 2013 14:18:17 +0530
Subject: ARC: Add support for irqflags tracing and lockdep

Lockdep required a small fix to stacktrace API which was incorrectly
unwindign out of __switch_to for the current call frame.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/Kconfig                |  6 ++++++
 arch/arc/include/asm/irqflags.h | 22 ++++++++++++++++++++++
 arch/arc/kernel/entry.S         | 11 +++++++++++
 arch/arc/kernel/stacktrace.c    |  4 +++-
 4 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 91dbb2757afd..524e6fce2c89 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -35,6 +35,12 @@ config ARC
 	select PERF_USE_VMALLOC
 	select HAVE_DEBUG_STACKOVERFLOW
 
+config TRACE_IRQFLAGS_SUPPORT
+	def_bool y
+
+config LOCKDEP_SUPPORT
+	def_bool y
+
 config SCHED_OMIT_FRAME_POINTER
 	def_bool y
 
diff --git a/arch/arc/include/asm/irqflags.h b/arch/arc/include/asm/irqflags.h
index b68b53f458d1..cb7efc29f16f 100644
--- a/arch/arc/include/asm/irqflags.h
+++ b/arch/arc/include/asm/irqflags.h
@@ -151,16 +151,38 @@ static inline void arch_unmask_irq(unsigned int irq)
 
 #else
 
+#ifdef CONFIG_TRACE_IRQFLAGS
+
+.macro TRACE_ASM_IRQ_DISABLE
+	bl	trace_hardirqs_off
+.endm
+
+.macro TRACE_ASM_IRQ_ENABLE
+	bl	trace_hardirqs_on
+.endm
+
+#else
+
+.macro TRACE_ASM_IRQ_DISABLE
+.endm
+
+.macro TRACE_ASM_IRQ_ENABLE
+.endm
+
+#endif
+
 .macro IRQ_DISABLE  scratch
 	lr	\scratch, [status32]
 	bic	\scratch, \scratch, (STATUS_E1_MASK | STATUS_E2_MASK)
 	flag	\scratch
+	TRACE_ASM_IRQ_DISABLE
 .endm
 
 .macro IRQ_ENABLE  scratch
 	lr	\scratch, [status32]
 	or	\scratch, \scratch, (STATUS_E1_MASK | STATUS_E2_MASK)
 	flag	\scratch
+	TRACE_ASM_IRQ_ENABLE
 .endm
 
 #endif	/* __ASSEMBLY__ */
diff --git a/arch/arc/kernel/entry.S b/arch/arc/kernel/entry.S
index daa0e7990270..47d09d07f093 100644
--- a/arch/arc/kernel/entry.S
+++ b/arch/arc/kernel/entry.S
@@ -250,6 +250,14 @@ ARC_ENTRY handle_interrupt_level1
 	lr  r0, [icause1]
 	and r0, r0, 0x1f
 
+#ifdef CONFIG_TRACE_IRQFLAGS
+	; icause1 needs to be read early, before calling tracing, which
+	; can clobber scratch regs, hence use of stack to stash it
+	push r0
+	TRACE_ASM_IRQ_DISABLE
+	pop  r0
+#endif
+
 	bl.d  @arch_do_IRQ
 	mov r1, sp
 
@@ -570,6 +578,7 @@ resume_user_mode_begin:
 	; --- (Slow Path #2) pending signal  ---
 	mov r0, sp	; pt_regs for arg to do_signal()/do_notify_resume()
 
+	GET_CURR_THR_INFO_FLAGS   r9
 	bbit0  r9, TIF_SIGPENDING, .Lchk_notify_resume
 
 	; Normal Trap/IRQ entry only saves Scratch (caller-saved) regs
@@ -635,6 +644,8 @@ resume_kernel_mode:
 
 restore_regs :
 
+	TRACE_ASM_IRQ_ENABLE
+
 	lr	r10, [status32]
 
 	; Restore REG File. In case multiple Events outstanding,
diff --git a/arch/arc/kernel/stacktrace.c b/arch/arc/kernel/stacktrace.c
index f8b7d880304d..ab97b034922f 100644
--- a/arch/arc/kernel/stacktrace.c
+++ b/arch/arc/kernel/stacktrace.c
@@ -237,11 +237,13 @@ unsigned int get_wchan(struct task_struct *tsk)
  */
 void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
 {
+	/* Assumes @tsk is sleeping so unwinds from __switch_to */
 	arc_unwind_core(tsk, NULL, __collect_all_but_sched, trace);
 }
 
 void save_stack_trace(struct stack_trace *trace)
 {
-	arc_unwind_core(current, NULL, __collect_all, trace);
+	/* Pass NULL for task so it unwinds the current call frame */
+	arc_unwind_core(NULL, NULL, __collect_all, trace);
 }
 #endif
-- 
cgit 


From 0a4c40a3b702730c8b1ad0952e6501e84fadd395 Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Fri, 27 Sep 2013 18:20:06 +0530
Subject: ARC: Fix bogus gcc warning and micro-optimise TLB iteration loop
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

------------------>8----------------------
arch/arc/mm/tlb.c: In function ‘do_tlb_overlap_fault’:
arch/arc/mm/tlb.c:688:13: warning: array subscript is above array bounds
[-Warray-bounds]
         (pd0[n] & PAGE_MASK)) {
             ^
------------------>8----------------------

While at it, remove the usless last iteration of outer loop when reading
a TLB SET for duplicate entries.

Suggested-by: Mischa Jonker <mjonker@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/mm/tlb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c
index 71cb26df4255..5f53050abf60 100644
--- a/arch/arc/mm/tlb.c
+++ b/arch/arc/mm/tlb.c
@@ -610,9 +610,9 @@ void do_tlb_overlap_fault(unsigned long cause, unsigned long address,
 			  struct pt_regs *regs)
 {
 	int set, way, n;
-	unsigned int pd0[4], pd1[4];	/* assume max 4 ways */
 	unsigned long flags, is_valid;
 	struct cpuinfo_arc_mmu *mmu = &cpuinfo_arc700[smp_processor_id()].mmu;
+	unsigned int pd0[mmu->ways], pd1[mmu->ways];
 
 	local_irq_save(flags);
 
@@ -637,7 +637,7 @@ void do_tlb_overlap_fault(unsigned long cause, unsigned long address,
 			continue;
 
 		/* Scan the set for duplicate ways: needs a nested loop */
-		for (way = 0; way < mmu->ways; way++) {
+		for (way = 0; way < mmu->ways - 1; way++) {
 			if (!pd0[way])
 				continue;
 
-- 
cgit 


From 3d01c1ce41fae0fb1d8e50589f9fb3b1fa376c1c Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Thu, 24 Oct 2013 11:50:09 +0800
Subject: arc: kgdb: add default implementation for kgdb_roundup_cpus()

arc supports kgdb, but need update -- add function kgdb_roundup_cpus(),
or can not pass compiling. At present, add the simple generic one just
like other architectures(e.g. tile, mips ...).

The related error (with allmodconfig):

  kernel/built-in.o: In function `kgdb_cpu_enter':
  kernel/debug/debug_core.c:580: undefined reference to `kgdb_roundup_cpus'

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/kernel/kgdb.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arc/kernel/kgdb.c b/arch/arc/kernel/kgdb.c
index a7698fb14818..a2ff5c5d1450 100644
--- a/arch/arc/kernel/kgdb.c
+++ b/arch/arc/kernel/kgdb.c
@@ -196,6 +196,18 @@ void kgdb_arch_set_pc(struct pt_regs *regs, unsigned long ip)
 	instruction_pointer(regs) = ip;
 }
 
+static void kgdb_call_nmi_hook(void *ignored)
+{
+	kgdb_nmicallback(raw_smp_processor_id(), NULL);
+}
+
+void kgdb_roundup_cpus(unsigned long flags)
+{
+	local_irq_enable();
+	smp_call_function(kgdb_call_nmi_hook, NULL, 0);
+	local_irq_disable();
+}
+
 struct kgdb_arch arch_kgdb_ops = {
 	/* breakpoint instruction: TRAP_S 0x3 */
 #ifdef CONFIG_CPU_BIG_ENDIAN
-- 
cgit 


From ef3a661af69046df74beb0ddfa27204aad316385 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Wed, 23 Oct 2013 10:12:05 +0800
Subject: arc: remove '__init' for setup_processor() and arc_init_IRQ()

They haven't '__init' in definition, but has '__init' in declaration.
And normal function start_kernel_secondary() may call setup_processor()
which will call arc_init_IRQ().

So need remove '__init' for both of them. The related warning (with
allmodconfig):

    MODPOST vmlinux.o
  WARNING: vmlinux.o(.text+0x3084): Section mismatch in reference from the function start_kernel_secondary() to the function .init.text:setup_processor()
  The function start_kernel_secondary() references
  the function __init setup_processor().
  This is often because start_kernel_secondary lacks a __init
  annotation or the annotation of setup_processor is wrong.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
---
 arch/arc/include/asm/irq.h   | 2 +-
 arch/arc/include/asm/setup.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arc/include/asm/irq.h b/arch/arc/include/asm/irq.h
index c0a72105ee0b..548207f073da 100644
--- a/arch/arc/include/asm/irq.h
+++ b/arch/arc/include/asm/irq.h
@@ -18,7 +18,7 @@
 
 #include <asm-generic/irq.h>
 
-extern void __init arc_init_IRQ(void);
+extern void arc_init_IRQ(void);
 extern int __init get_hw_config_num_irq(void);
 
 void arc_local_timer_setup(unsigned int cpu);
diff --git a/arch/arc/include/asm/setup.h b/arch/arc/include/asm/setup.h
index 229e50681497..e10f8cef56a8 100644
--- a/arch/arc/include/asm/setup.h
+++ b/arch/arc/include/asm/setup.h
@@ -31,7 +31,7 @@ struct cpuinfo_data {
 extern int root_mountflags, end_mem;
 extern int running_on_hw;
 
-void __init setup_processor(void);
+void setup_processor(void);
 void __init setup_arch_memory(void);
 
 #endif /* __ASMARC_SETUP_H */
-- 
cgit 


From 8f5d221b0641a9a16311a6e5c056a5b583ef0cbb Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Wed, 23 Oct 2013 10:16:38 +0800
Subject: arc: remove '__init' for first_lines_of_secondary()

first_lines_of_secondary() is a '__init' function, but it may be called
by __cpu_up() by _cpu_up() by cpu_up() which is a normal export symbol
function. So recommend to remove '__init'.

The related warning (with allmodconfig):

    MODPOST vmlinux.o
  WARNING: vmlinux.o(.text+0x315c): Section mismatch in reference from the function __cpu_up() to the function .init.text:first_lines_of_secondary()
  The function __cpu_up() references
  the function __init first_lines_of_secondary().
  This is often because __cpu_up lacks a __init
  annotation or the annotation of first_lines_of_secondary is wrong.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
---
 arch/arc/include/asm/smp.h | 2 +-
 arch/arc/kernel/head.S     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arc/include/asm/smp.h b/arch/arc/include/asm/smp.h
index c4fb211dcd25..eefc29f08cdb 100644
--- a/arch/arc/include/asm/smp.h
+++ b/arch/arc/include/asm/smp.h
@@ -30,7 +30,7 @@ extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
  * APIs provided by arch SMP code to rest of arch code
  */
 extern void __init smp_init_cpus(void);
-extern void __init first_lines_of_secondary(void);
+extern void first_lines_of_secondary(void);
 extern const char *arc_platform_smp_cpuinfo(void);
 
 /*
diff --git a/arch/arc/kernel/head.S b/arch/arc/kernel/head.S
index 0f944f024513..2c878e964a64 100644
--- a/arch/arc/kernel/head.S
+++ b/arch/arc/kernel/head.S
@@ -95,7 +95,7 @@ stext:
 ;----------------------------------------------------------------
 ;     First lines of code run by secondary before jumping to 'C'
 ;----------------------------------------------------------------
-	.section .init.text, "ax",@progbits
+	.section .text, "ax",@progbits
 	.type first_lines_of_secondary, @function
 	.globl first_lines_of_secondary
 
-- 
cgit 


From 4782f7f9aeba4dfd383c532e96bebf83ce0b9748 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Wed, 23 Oct 2013 11:02:51 +0800
Subject: arc: remove '__init' for get_hw_config_num_irq()

get_hw_config_num_irq() may be called by normal iss_model_init_smp()
which is a function pointer for 'init_smp' which may be called by
first_lines_of_secondary() which also need be normal too.

The related warning (with allmodconfig):

    MODPOST vmlinux.o
  WARNING: vmlinux.o(.text+0x5814): Section mismatch in reference from the function iss_model_init_smp() to the function .init.text:get_hw_config_num_irq()
  The function iss_model_init_smp() references
  the function __init get_hw_config_num_irq().
  This is often because iss_model_init_smp lacks a __init
  annotation or the annotation of get_hw_config_num_irq is wrong.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
---
 arch/arc/include/asm/irq.h | 2 +-
 arch/arc/kernel/irq.c      | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arc/include/asm/irq.h b/arch/arc/include/asm/irq.h
index 548207f073da..291a70db68b8 100644
--- a/arch/arc/include/asm/irq.h
+++ b/arch/arc/include/asm/irq.h
@@ -19,7 +19,7 @@
 #include <asm-generic/irq.h>
 
 extern void arc_init_IRQ(void);
-extern int __init get_hw_config_num_irq(void);
+extern int get_hw_config_num_irq(void);
 
 void arc_local_timer_setup(unsigned int cpu);
 
diff --git a/arch/arc/kernel/irq.c b/arch/arc/kernel/irq.c
index 02684e1a0cf0..a4b141ee9a6a 100644
--- a/arch/arc/kernel/irq.c
+++ b/arch/arc/kernel/irq.c
@@ -150,7 +150,7 @@ void arch_do_IRQ(unsigned int irq, struct pt_regs *regs)
 	set_irq_regs(old_regs);
 }
 
-int __init get_hw_config_num_irq(void)
+int get_hw_config_num_irq(void)
 {
 	uint32_t val = read_aux_reg(ARC_REG_VECBASE_BCR);
 
-- 
cgit 


From 8f146d0204a874b6b1f5344ed578796e2fcd7e9c Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Mon, 28 Oct 2013 11:00:38 +0800
Subject: arc: export symbol for save_stack_trace() in stacktrace.c

Need export its symbol just like other architectures done, or can not
pass compiling with allmodconfig, the related error:

    MODPOST 2994 modules
  ERROR: "save_stack_trace" [kernel/backtracetest.ko] undefined!
  ERROR: "save_stack_trace" [drivers/md/persistent-data/dm-persistent-data.ko] undefined!

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/kernel/stacktrace.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arc/kernel/stacktrace.c b/arch/arc/kernel/stacktrace.c
index ab97b034922f..9ce47cfe2303 100644
--- a/arch/arc/kernel/stacktrace.c
+++ b/arch/arc/kernel/stacktrace.c
@@ -246,4 +246,5 @@ void save_stack_trace(struct stack_trace *trace)
 	/* Pass NULL for task so it unwinds the current call frame */
 	arc_unwind_core(NULL, NULL, __collect_all, trace);
 }
+EXPORT_SYMBOL_GPL(save_stack_trace);
 #endif
-- 
cgit 


From b6fe8e7c0189d017fdba90d1cd134337098c19c3 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Mon, 28 Oct 2013 11:49:47 +0800
Subject: arc: export symbol for pm_power_off in reset.c

Need export symbol for it, or can not pass compiling, the related error
with allmodconfig:

    MODPOST 2994 modules
  ERROR: "pm_power_off" [drivers/mfd/retu-mfd.ko] undefined!
  ERROR: "pm_power_off" [drivers/char/ipmi/ipmi_poweroff.ko] undefined!

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/kernel/reset.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arc/kernel/reset.c b/arch/arc/kernel/reset.c
index e227a2b1c943..2768fa1e39b9 100644
--- a/arch/arc/kernel/reset.c
+++ b/arch/arc/kernel/reset.c
@@ -31,3 +31,4 @@ void machine_power_off(void)
 }
 
 void (*pm_power_off) (void) = NULL;
+EXPORT_SYMBOL(pm_power_off);
-- 
cgit 


From 63eca94ca206e342bad4a06a86d8e7eda3053a4e Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Fri, 23 Aug 2013 19:16:34 +0530
Subject: ARC: [SMP] ASID allocation

-Track a Per CPU ASID counter
-mm-per-cpu ASID (multiple threads, or mm migrated around)

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/include/asm/mmu.h         |  2 +-
 arch/arc/include/asm/mmu_context.h | 44 ++++++++++++++++++++++++--------------
 arch/arc/mm/tlb.c                  | 14 ++++++------
 3 files changed, 37 insertions(+), 23 deletions(-)

diff --git a/arch/arc/include/asm/mmu.h b/arch/arc/include/asm/mmu.h
index c2663b32866b..8c84ae98c337 100644
--- a/arch/arc/include/asm/mmu.h
+++ b/arch/arc/include/asm/mmu.h
@@ -48,7 +48,7 @@
 #ifndef __ASSEMBLY__
 
 typedef struct {
-	unsigned long asid;	/* 8 bit MMU PID + Generation cycle */
+	unsigned long asid[NR_CPUS];	/* 8 bit MMU PID + Generation cycle */
 } mm_context_t;
 
 #ifdef CONFIG_ARC_DBG_TLB_PARANOIA
diff --git a/arch/arc/include/asm/mmu_context.h b/arch/arc/include/asm/mmu_context.h
index 43a1b51bb8cc..45f06f566b02 100644
--- a/arch/arc/include/asm/mmu_context.h
+++ b/arch/arc/include/asm/mmu_context.h
@@ -30,13 +30,13 @@
  * "Fast Context Switch" i.e. no TLB flush on ctxt-switch
  *
  * Linux assigns each task a unique ASID. A simple round-robin allocation
- * of H/w ASID is done using software tracker @asid_cache.
+ * of H/w ASID is done using software tracker @asid_cpu.
  * When it reaches max 255, the allocation cycle starts afresh by flushing
  * the entire TLB and wrapping ASID back to zero.
  *
  * A new allocation cycle, post rollover, could potentially reassign an ASID
  * to a different task. Thus the rule is to refresh the ASID in a new cycle.
- * The 32 bit @asid_cache (and mm->asid) have 8 bits MMU PID and rest 24 bits
+ * The 32 bit @asid_cpu (and mm->asid) have 8 bits MMU PID and rest 24 bits
  * serve as cycle/generation indicator and natural 32 bit unsigned math
  * automagically increments the generation when lower 8 bits rollover.
  */
@@ -47,9 +47,11 @@
 #define MM_CTXT_FIRST_CYCLE	(MM_CTXT_ASID_MASK + 1)
 #define MM_CTXT_NO_ASID		0UL
 
-#define hw_pid(mm)		(mm->context.asid & MM_CTXT_ASID_MASK)
+#define asid_mm(mm, cpu)	mm->context.asid[cpu]
+#define hw_pid(mm, cpu)		(asid_mm(mm, cpu) & MM_CTXT_ASID_MASK)
 
-extern unsigned int asid_cache;
+DECLARE_PER_CPU(unsigned int, asid_cache);
+#define asid_cpu(cpu)		per_cpu(asid_cache, cpu)
 
 /*
  * Get a new ASID if task doesn't have a valid one (unalloc or from prev cycle)
@@ -57,6 +59,7 @@ extern unsigned int asid_cache;
  */
 static inline void get_new_mmu_context(struct mm_struct *mm)
 {
+	const unsigned int cpu = smp_processor_id();
 	unsigned long flags;
 
 	local_irq_save(flags);
@@ -71,11 +74,11 @@ static inline void get_new_mmu_context(struct mm_struct *mm)
 	 * 	 first need to destroy the context, setting it to invalid
 	 * 	 value.
 	 */
-	if (!((mm->context.asid ^ asid_cache) & MM_CTXT_CYCLE_MASK))
+	if (!((asid_mm(mm, cpu) ^ asid_cpu(cpu)) & MM_CTXT_CYCLE_MASK))
 		goto set_hw;
 
 	/* move to new ASID and handle rollover */
-	if (unlikely(!(++asid_cache & MM_CTXT_ASID_MASK))) {
+	if (unlikely(!(++asid_cpu(cpu) & MM_CTXT_ASID_MASK))) {
 
 		flush_tlb_all();
 
@@ -84,15 +87,15 @@ static inline void get_new_mmu_context(struct mm_struct *mm)
 		 * If the container itself wrapped around, set it to a non zero
 		 * "generation" to distinguish from no context
 		 */
-		if (!asid_cache)
-			asid_cache = MM_CTXT_FIRST_CYCLE;
+		if (!asid_cpu(cpu))
+			asid_cpu(cpu) = MM_CTXT_FIRST_CYCLE;
 	}
 
 	/* Assign new ASID to tsk */
-	mm->context.asid = asid_cache;
+	asid_mm(mm, cpu) = asid_cpu(cpu);
 
 set_hw:
-	write_aux_reg(ARC_REG_PID, hw_pid(mm) | MMU_ENABLE);
+	write_aux_reg(ARC_REG_PID, hw_pid(mm, cpu) | MMU_ENABLE);
 
 	local_irq_restore(flags);
 }
@@ -104,10 +107,24 @@ set_hw:
 static inline int
 init_new_context(struct task_struct *tsk, struct mm_struct *mm)
 {
-	mm->context.asid = MM_CTXT_NO_ASID;
+	int i;
+
+	for_each_possible_cpu(i)
+		asid_mm(mm, i) = MM_CTXT_NO_ASID;
+
 	return 0;
 }
 
+static inline void destroy_context(struct mm_struct *mm)
+{
+	unsigned long flags;
+
+	/* Needed to elide CONFIG_DEBUG_PREEMPT warning */
+	local_irq_save(flags);
+	asid_mm(mm, smp_processor_id()) = MM_CTXT_NO_ASID;
+	local_irq_restore(flags);
+}
+
 /* Prepare the MMU for task: setup PID reg with allocated ASID
     If task doesn't have an ASID (never alloc or stolen, get a new ASID)
 */
@@ -131,11 +148,6 @@ static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
  */
 #define activate_mm(prev, next)		switch_mm(prev, next, NULL)
 
-static inline void destroy_context(struct mm_struct *mm)
-{
-	mm->context.asid = MM_CTXT_NO_ASID;
-}
-
 /* it seemed that deactivate_mm( ) is a reasonable place to do book-keeping
  * for retiring-mm. However destroy_context( ) still needs to do that because
  * between mm_release( ) = >deactive_mm( ) and
diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c
index 5f53050abf60..db0f0f823980 100644
--- a/arch/arc/mm/tlb.c
+++ b/arch/arc/mm/tlb.c
@@ -100,7 +100,7 @@
 
 
 /* A copy of the ASID from the PID reg is kept in asid_cache */
-unsigned int asid_cache = MM_CTXT_FIRST_CYCLE;
+DEFINE_PER_CPU(unsigned int, asid_cache) = MM_CTXT_FIRST_CYCLE;
 
 /*
  * Utility Routine to erase a J-TLB entry
@@ -274,6 +274,7 @@ noinline void local_flush_tlb_mm(struct mm_struct *mm)
 void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
 			   unsigned long end)
 {
+	const unsigned int cpu = smp_processor_id();
 	unsigned long flags;
 
 	/* If range @start to @end is more than 32 TLB entries deep,
@@ -297,9 +298,9 @@ void local_flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
 
 	local_irq_save(flags);
 
-	if (vma->vm_mm->context.asid != MM_CTXT_NO_ASID) {
+	if (asid_mm(vma->vm_mm, cpu) != MM_CTXT_NO_ASID) {
 		while (start < end) {
-			tlb_entry_erase(start | hw_pid(vma->vm_mm));
+			tlb_entry_erase(start | hw_pid(vma->vm_mm, cpu));
 			start += PAGE_SIZE;
 		}
 	}
@@ -346,6 +347,7 @@ void local_flush_tlb_kernel_range(unsigned long start, unsigned long end)
 
 void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
 {
+	const unsigned int cpu = smp_processor_id();
 	unsigned long flags;
 
 	/* Note that it is critical that interrupts are DISABLED between
@@ -353,8 +355,8 @@ void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
 	 */
 	local_irq_save(flags);
 
-	if (vma->vm_mm->context.asid != MM_CTXT_NO_ASID) {
-		tlb_entry_erase((page & PAGE_MASK) | hw_pid(vma->vm_mm));
+	if (asid_mm(vma->vm_mm, cpu) != MM_CTXT_NO_ASID) {
+		tlb_entry_erase((page & PAGE_MASK) | hw_pid(vma->vm_mm, cpu));
 		utlb_invalidate();
 	}
 
@@ -400,7 +402,7 @@ void create_tlb(struct vm_area_struct *vma, unsigned long address, pte_t *ptep)
 
 	local_irq_save(flags);
 
-	tlb_paranoid_check(vma->vm_mm->context.asid, address);
+	tlb_paranoid_check(asid_mm(vma->vm_mm, smp_processor_id()), address);
 
 	address &= PAGE_MASK;
 
-- 
cgit 


From 5ea72a90261552ed5fdca35239feb6cba498301e Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Sun, 27 Oct 2013 14:49:02 +0530
Subject: ARC: [SMP] TLB flush

- Add mm_cpumask setting (aggregating only, unlike some other arches)
  used to restrict the TLB flush cross-calling

- cross-calling versions of TLB flush routines (thanks to Noam)

Signed-off-by: Noam Camus <noamc@ezchip.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/include/asm/mmu_context.h | 17 ++++++++-
 arch/arc/include/asm/tlbflush.h    | 11 ++++--
 arch/arc/kernel/smp.c              |  1 +
 arch/arc/mm/tlb.c                  | 73 ++++++++++++++++++++++++++++++++++++++
 4 files changed, 99 insertions(+), 3 deletions(-)

diff --git a/arch/arc/include/asm/mmu_context.h b/arch/arc/include/asm/mmu_context.h
index 45f06f566b02..1fd467ef658f 100644
--- a/arch/arc/include/asm/mmu_context.h
+++ b/arch/arc/include/asm/mmu_context.h
@@ -80,7 +80,7 @@ static inline void get_new_mmu_context(struct mm_struct *mm)
 	/* move to new ASID and handle rollover */
 	if (unlikely(!(++asid_cpu(cpu) & MM_CTXT_ASID_MASK))) {
 
-		flush_tlb_all();
+		local_flush_tlb_all();
 
 		/*
 		 * Above checke for rollover of 8 bit ASID in 32 bit container.
@@ -131,6 +131,21 @@ static inline void destroy_context(struct mm_struct *mm)
 static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next,
 			     struct task_struct *tsk)
 {
+	const int cpu = smp_processor_id();
+
+	/*
+	 * Note that the mm_cpumask is "aggregating" only, we don't clear it
+	 * for the switched-out task, unlike some other arches.
+	 * It is used to enlist cpus for sending TLB flush IPIs and not sending
+	 * it to CPUs where a task once ran-on, could cause stale TLB entry
+	 * re-use, specially for a multi-threaded task.
+	 * e.g. T1 runs on C1, migrates to C3. T2 running on C2 munmaps.
+	 *      For a non-aggregating mm_cpumask, IPI not sent C1, and if T1
+	 *      were to re-migrate to C1, it could access the unmapped region
+	 *      via any existing stale TLB entries.
+	 */
+	cpumask_set_cpu(cpu, mm_cpumask(next));
+
 #ifndef CONFIG_SMP
 	/* PGD cached in MMU reg to avoid 3 mem lookups: task->mm->pgd */
 	write_aux_reg(ARC_REG_SCRATCH_DATA0, next->pgd);
diff --git a/arch/arc/include/asm/tlbflush.h b/arch/arc/include/asm/tlbflush.h
index b2f9bc7f68c8..71c7b2e4b874 100644
--- a/arch/arc/include/asm/tlbflush.h
+++ b/arch/arc/include/asm/tlbflush.h
@@ -18,11 +18,18 @@ void local_flush_tlb_kernel_range(unsigned long start, unsigned long end);
 void local_flush_tlb_range(struct vm_area_struct *vma,
 			   unsigned long start, unsigned long end);
 
-/* XXX: Revisit for SMP */
+#ifndef CONFIG_SMP
 #define flush_tlb_range(vma, s, e)	local_flush_tlb_range(vma, s, e)
 #define flush_tlb_page(vma, page)	local_flush_tlb_page(vma, page)
 #define flush_tlb_kernel_range(s, e)	local_flush_tlb_kernel_range(s, e)
 #define flush_tlb_all()			local_flush_tlb_all()
 #define flush_tlb_mm(mm)		local_flush_tlb_mm(mm)
-
+#else
+extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
+							 unsigned long end);
+extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long page);
+extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
+extern void flush_tlb_all(void);
+extern void flush_tlb_mm(struct mm_struct *mm);
+#endif /* CONFIG_SMP */
 #endif
diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
index 7f0ab1ecd640..41bc4c703f42 100644
--- a/arch/arc/kernel/smp.c
+++ b/arch/arc/kernel/smp.c
@@ -128,6 +128,7 @@ void start_kernel_secondary(void)
 	atomic_inc(&mm->mm_users);
 	atomic_inc(&mm->mm_count);
 	current->active_mm = mm;
+	cpumask_set_cpu(cpu, mm_cpumask(mm));
 
 	notify_cpu_starting(cpu);
 	set_cpu_online(cpu, true);
diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c
index db0f0f823980..e1acf0ce5647 100644
--- a/arch/arc/mm/tlb.c
+++ b/arch/arc/mm/tlb.c
@@ -363,6 +363,79 @@ void local_flush_tlb_page(struct vm_area_struct *vma, unsigned long page)
 	local_irq_restore(flags);
 }
 
+#ifdef CONFIG_SMP
+
+struct tlb_args {
+	struct vm_area_struct *ta_vma;
+	unsigned long ta_start;
+	unsigned long ta_end;
+};
+
+static inline void ipi_flush_tlb_page(void *arg)
+{
+	struct tlb_args *ta = arg;
+
+	local_flush_tlb_page(ta->ta_vma, ta->ta_start);
+}
+
+static inline void ipi_flush_tlb_range(void *arg)
+{
+	struct tlb_args *ta = arg;
+
+	local_flush_tlb_range(ta->ta_vma, ta->ta_start, ta->ta_end);
+}
+
+static inline void ipi_flush_tlb_kernel_range(void *arg)
+{
+	struct tlb_args *ta = (struct tlb_args *)arg;
+
+	local_flush_tlb_kernel_range(ta->ta_start, ta->ta_end);
+}
+
+void flush_tlb_all(void)
+{
+	on_each_cpu((smp_call_func_t)local_flush_tlb_all, NULL, 1);
+}
+
+void flush_tlb_mm(struct mm_struct *mm)
+{
+	on_each_cpu_mask(mm_cpumask(mm), (smp_call_func_t)local_flush_tlb_mm,
+			 mm, 1);
+}
+
+void flush_tlb_page(struct vm_area_struct *vma, unsigned long uaddr)
+{
+	struct tlb_args ta = {
+		.ta_vma = vma,
+		.ta_start = uaddr
+	};
+
+	on_each_cpu_mask(mm_cpumask(vma->vm_mm), ipi_flush_tlb_page, &ta, 1);
+}
+
+void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
+		     unsigned long end)
+{
+	struct tlb_args ta = {
+		.ta_vma = vma,
+		.ta_start = start,
+		.ta_end = end
+	};
+
+	on_each_cpu_mask(mm_cpumask(vma->vm_mm), ipi_flush_tlb_range, &ta, 1);
+}
+
+void flush_tlb_kernel_range(unsigned long start, unsigned long end)
+{
+	struct tlb_args ta = {
+		.ta_start = start,
+		.ta_end = end
+	};
+
+	on_each_cpu(ipi_flush_tlb_kernel_range, &ta, 1);
+}
+#endif
+
 /*
  * Routine to create a TLB entry
  */
-- 
cgit 


From 3aa4f80e410b3c14d987c42a90c31023c3081b46 Mon Sep 17 00:00:00 2001
From: Noam Camus <noamc@ezchip.com>
Date: Mon, 3 Jun 2013 15:19:59 +0300
Subject: ARC: [SMP] enlarge possible NR_CPUS

Signed-off-by: Noam Camus <noamc@ezchip.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 524e6fce2c89..fb4177e48260 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -145,8 +145,8 @@ config ARC_HAS_REENTRANT_IRQ_LV2
 endif
 
 config NR_CPUS
-	int "Maximum number of CPUs (2-32)"
-	range 2 32
+	int "Maximum number of CPUs (2-4096)"
+	range 2 4096
 	depends on SMP
 	default "2"
 
-- 
cgit 


From 57e26e57454fae4f1d15c2e9fa965b7a8046ab34 Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Fri, 1 Nov 2013 10:46:40 +0530
Subject: ARC: [SMP] Fix build failures for large NR_CPUS

ST.as only takes S9 (255) for offset. This was going out of range when
accessing a task_struct field with 4k NR_CPUS (due to 128b of coumaks
itself in there).

Workaround by using an intermediate register to do the address scaling.

There is some duplication of fix for ctx_sw.c and ctx_sw_asm.S however
given that C version will go away soon I'm not bothering to factor out
the common code.

Reported-by: Noam Camus <noamc@ezchip.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/kernel/ctx_sw.c     | 13 ++++++++++++-
 arch/arc/kernel/ctx_sw_asm.S | 11 +++++++++--
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/arch/arc/kernel/ctx_sw.c b/arch/arc/kernel/ctx_sw.c
index 34410eb1a308..c14a5bea0c76 100644
--- a/arch/arc/kernel/ctx_sw.c
+++ b/arch/arc/kernel/ctx_sw.c
@@ -17,6 +17,8 @@
 #include <asm/asm-offsets.h>
 #include <linux/sched.h>
 
+#define KSP_WORD_OFF 	((TASK_THREAD + THREAD_KSP) / 4)
+
 struct task_struct *__sched
 __switch_to(struct task_struct *prev_task, struct task_struct *next_task)
 {
@@ -45,7 +47,16 @@ __switch_to(struct task_struct *prev_task, struct task_struct *next_task)
 #endif
 
 		/* set ksp of outgoing task in tsk->thread.ksp */
+#if KSP_WORD_OFF <= 255
 		"st.as   sp, [%3, %1]    \n\t"
+#else
+		/*
+		 * Workaround for NR_CPUS=4k
+		 * %1 is bigger than 255 (S9 offset for st.as)
+		 */
+		"add2    r24, %3, %1     \n\t"
+		"st      sp, [r24]       \n\t"
+#endif
 
 		"sync   \n\t"
 
@@ -97,7 +108,7 @@ __switch_to(struct task_struct *prev_task, struct task_struct *next_task)
 		/* FP/BLINK restore generated by gcc (standard func epilogue */
 
 		: "=r"(tmp)
-		: "n"((TASK_THREAD + THREAD_KSP) / 4), "r"(next), "r"(prev)
+		: "n"(KSP_WORD_OFF), "r"(next), "r"(prev)
 		: "blink"
 	);
 
diff --git a/arch/arc/kernel/ctx_sw_asm.S b/arch/arc/kernel/ctx_sw_asm.S
index d8972345e4c2..65690e7fcc8c 100644
--- a/arch/arc/kernel/ctx_sw_asm.S
+++ b/arch/arc/kernel/ctx_sw_asm.S
@@ -14,6 +14,8 @@
 #include <asm/asm-offsets.h>
 #include <asm/linkage.h>
 
+#define KSP_WORD_OFF 	((TASK_THREAD + THREAD_KSP) / 4)
+
 ;################### Low Level Context Switch ##########################
 
 	.section .sched.text,"ax",@progbits
@@ -28,8 +30,13 @@ __switch_to:
 	SAVE_CALLEE_SAVED_KERNEL
 
 	/* Save the now KSP in task->thread.ksp */
-	st.as  sp, [r0, (TASK_THREAD + THREAD_KSP)/4]
-
+#if KSP_WORD_OFF  <= 255
+	st.as  sp, [r0, KSP_WORD_OFF]
+#else
+	/* Workaround for NR_CPUS=4k as ST.as can only take s9 offset */
+	add2	r24, r0, KSP_WORD_OFF
+	st	sp, [r24]
+#endif
 	/*
 	* Return last task in r0 (return reg)
 	* On ARC, Return reg = First Arg reg = r0.
-- 
cgit 


From 73b9bcd76d13716cc0e0ab053f8c1ae41f47636e Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 25 Oct 2013 21:55:42 +0800
Subject: thermal: cpu_cooling: fix return value check in
 cpufreq_cooling_register()

In case of error, the function thermal_cooling_device_register() returns
ERR_PTR() and never returns NULL. The NULL test in the return value check
should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
 drivers/thermal/cpu_cooling.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/thermal/cpu_cooling.c b/drivers/thermal/cpu_cooling.c
index d17902886c3f..02a46f23d14c 100644
--- a/drivers/thermal/cpu_cooling.c
+++ b/drivers/thermal/cpu_cooling.c
@@ -469,10 +469,10 @@ cpufreq_cooling_register(const struct cpumask *clip_cpus)
 
 	cool_dev = thermal_cooling_device_register(dev_name, cpufreq_dev,
 						   &cpufreq_cooling_ops);
-	if (!cool_dev) {
+	if (IS_ERR(cool_dev)) {
 		release_idr(&cpufreq_idr, cpufreq_dev->id);
 		kfree(cpufreq_dev);
-		return ERR_PTR(-EINVAL);
+		return cool_dev;
 	}
 	cpufreq_dev->cool_dev = cool_dev;
 	cpufreq_dev->cpufreq_state = 0;
-- 
cgit 


From 7a6354e241d8fbc145836ac24e47630f12754536 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 31 Oct 2013 18:07:08 +0100
Subject: sched: Move wait.c into kernel/sched/

Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/n/tip-5q5yqvdaen0rmapwloeaotx3@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/Makefile       |   2 +-
 kernel/sched/Makefile |   1 +
 kernel/sched/wait.c   | 401 ++++++++++++++++++++++++++++++++++++++++++++++++++
 kernel/wait.c         | 401 --------------------------------------------------
 4 files changed, 403 insertions(+), 402 deletions(-)
 create mode 100644 kernel/sched/wait.c
 delete mode 100644 kernel/wait.c

diff --git a/kernel/Makefile b/kernel/Makefile
index 1ce47553fb02..b3d51e229356 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -7,7 +7,7 @@ obj-y     = fork.o exec_domain.o panic.o \
 	    sysctl.o sysctl_binary.o capability.o ptrace.o timer.o user.o \
 	    signal.o sys.o kmod.o workqueue.o pid.o task_work.o \
 	    rcupdate.o extable.o params.o posix-timers.o \
-	    kthread.o wait.o sys_ni.o posix-cpu-timers.o mutex.o \
+	    kthread.o sys_ni.o posix-cpu-timers.o mutex.o \
 	    hrtimer.o rwsem.o nsproxy.o srcu.o semaphore.o \
 	    notifier.o ksysfs.o cred.o reboot.o \
 	    async.o range.o groups.o lglock.o smpboot.o
diff --git a/kernel/sched/Makefile b/kernel/sched/Makefile
index 54adcf35f495..f8d3f4baa1a1 100644
--- a/kernel/sched/Makefile
+++ b/kernel/sched/Makefile
@@ -12,6 +12,7 @@ CFLAGS_core.o := $(PROFILING) -fno-omit-frame-pointer
 endif
 
 obj-y += core.o proc.o clock.o cputime.o idle_task.o fair.o rt.o stop_task.o
+obj-y += wait.o
 obj-$(CONFIG_SMP) += cpupri.o
 obj-$(CONFIG_SCHED_AUTOGROUP) += auto_group.o
 obj-$(CONFIG_SCHEDSTATS) += stats.o
diff --git a/kernel/sched/wait.c b/kernel/sched/wait.c
new file mode 100644
index 000000000000..de21c6305a44
--- /dev/null
+++ b/kernel/sched/wait.c
@@ -0,0 +1,401 @@
+/*
+ * Generic waiting primitives.
+ *
+ * (C) 2004 Nadia Yvette Chambers, Oracle
+ */
+#include <linux/init.h>
+#include <linux/export.h>
+#include <linux/sched.h>
+#include <linux/mm.h>
+#include <linux/wait.h>
+#include <linux/hash.h>
+
+void __init_waitqueue_head(wait_queue_head_t *q, const char *name, struct lock_class_key *key)
+{
+	spin_lock_init(&q->lock);
+	lockdep_set_class_and_name(&q->lock, key, name);
+	INIT_LIST_HEAD(&q->task_list);
+}
+
+EXPORT_SYMBOL(__init_waitqueue_head);
+
+void add_wait_queue(wait_queue_head_t *q, wait_queue_t *wait)
+{
+	unsigned long flags;
+
+	wait->flags &= ~WQ_FLAG_EXCLUSIVE;
+	spin_lock_irqsave(&q->lock, flags);
+	__add_wait_queue(q, wait);
+	spin_unlock_irqrestore(&q->lock, flags);
+}
+EXPORT_SYMBOL(add_wait_queue);
+
+void add_wait_queue_exclusive(wait_queue_head_t *q, wait_queue_t *wait)
+{
+	unsigned long flags;
+
+	wait->flags |= WQ_FLAG_EXCLUSIVE;
+	spin_lock_irqsave(&q->lock, flags);
+	__add_wait_queue_tail(q, wait);
+	spin_unlock_irqrestore(&q->lock, flags);
+}
+EXPORT_SYMBOL(add_wait_queue_exclusive);
+
+void remove_wait_queue(wait_queue_head_t *q, wait_queue_t *wait)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&q->lock, flags);
+	__remove_wait_queue(q, wait);
+	spin_unlock_irqrestore(&q->lock, flags);
+}
+EXPORT_SYMBOL(remove_wait_queue);
+
+
+/*
+ * Note: we use "set_current_state()" _after_ the wait-queue add,
+ * because we need a memory barrier there on SMP, so that any
+ * wake-function that tests for the wait-queue being active
+ * will be guaranteed to see waitqueue addition _or_ subsequent
+ * tests in this thread will see the wakeup having taken place.
+ *
+ * The spin_unlock() itself is semi-permeable and only protects
+ * one way (it only protects stuff inside the critical region and
+ * stops them from bleeding out - it would still allow subsequent
+ * loads to move into the critical region).
+ */
+void
+prepare_to_wait(wait_queue_head_t *q, wait_queue_t *wait, int state)
+{
+	unsigned long flags;
+
+	wait->flags &= ~WQ_FLAG_EXCLUSIVE;
+	spin_lock_irqsave(&q->lock, flags);
+	if (list_empty(&wait->task_list))
+		__add_wait_queue(q, wait);
+	set_current_state(state);
+	spin_unlock_irqrestore(&q->lock, flags);
+}
+EXPORT_SYMBOL(prepare_to_wait);
+
+void
+prepare_to_wait_exclusive(wait_queue_head_t *q, wait_queue_t *wait, int state)
+{
+	unsigned long flags;
+
+	wait->flags |= WQ_FLAG_EXCLUSIVE;
+	spin_lock_irqsave(&q->lock, flags);
+	if (list_empty(&wait->task_list))
+		__add_wait_queue_tail(q, wait);
+	set_current_state(state);
+	spin_unlock_irqrestore(&q->lock, flags);
+}
+EXPORT_SYMBOL(prepare_to_wait_exclusive);
+
+long prepare_to_wait_event(wait_queue_head_t *q, wait_queue_t *wait, int state)
+{
+	unsigned long flags;
+
+	if (signal_pending_state(state, current))
+		return -ERESTARTSYS;
+
+	wait->private = current;
+	wait->func = autoremove_wake_function;
+
+	spin_lock_irqsave(&q->lock, flags);
+	if (list_empty(&wait->task_list)) {
+		if (wait->flags & WQ_FLAG_EXCLUSIVE)
+			__add_wait_queue_tail(q, wait);
+		else
+			__add_wait_queue(q, wait);
+	}
+	set_current_state(state);
+	spin_unlock_irqrestore(&q->lock, flags);
+
+	return 0;
+}
+EXPORT_SYMBOL(prepare_to_wait_event);
+
+/**
+ * finish_wait - clean up after waiting in a queue
+ * @q: waitqueue waited on
+ * @wait: wait descriptor
+ *
+ * Sets current thread back to running state and removes
+ * the wait descriptor from the given waitqueue if still
+ * queued.
+ */
+void finish_wait(wait_queue_head_t *q, wait_queue_t *wait)
+{
+	unsigned long flags;
+
+	__set_current_state(TASK_RUNNING);
+	/*
+	 * We can check for list emptiness outside the lock
+	 * IFF:
+	 *  - we use the "careful" check that verifies both
+	 *    the next and prev pointers, so that there cannot
+	 *    be any half-pending updates in progress on other
+	 *    CPU's that we haven't seen yet (and that might
+	 *    still change the stack area.
+	 * and
+	 *  - all other users take the lock (ie we can only
+	 *    have _one_ other CPU that looks at or modifies
+	 *    the list).
+	 */
+	if (!list_empty_careful(&wait->task_list)) {
+		spin_lock_irqsave(&q->lock, flags);
+		list_del_init(&wait->task_list);
+		spin_unlock_irqrestore(&q->lock, flags);
+	}
+}
+EXPORT_SYMBOL(finish_wait);
+
+/**
+ * abort_exclusive_wait - abort exclusive waiting in a queue
+ * @q: waitqueue waited on
+ * @wait: wait descriptor
+ * @mode: runstate of the waiter to be woken
+ * @key: key to identify a wait bit queue or %NULL
+ *
+ * Sets current thread back to running state and removes
+ * the wait descriptor from the given waitqueue if still
+ * queued.
+ *
+ * Wakes up the next waiter if the caller is concurrently
+ * woken up through the queue.
+ *
+ * This prevents waiter starvation where an exclusive waiter
+ * aborts and is woken up concurrently and no one wakes up
+ * the next waiter.
+ */
+void abort_exclusive_wait(wait_queue_head_t *q, wait_queue_t *wait,
+			unsigned int mode, void *key)
+{
+	unsigned long flags;
+
+	__set_current_state(TASK_RUNNING);
+	spin_lock_irqsave(&q->lock, flags);
+	if (!list_empty(&wait->task_list))
+		list_del_init(&wait->task_list);
+	else if (waitqueue_active(q))
+		__wake_up_locked_key(q, mode, key);
+	spin_unlock_irqrestore(&q->lock, flags);
+}
+EXPORT_SYMBOL(abort_exclusive_wait);
+
+int autoremove_wake_function(wait_queue_t *wait, unsigned mode, int sync, void *key)
+{
+	int ret = default_wake_function(wait, mode, sync, key);
+
+	if (ret)
+		list_del_init(&wait->task_list);
+	return ret;
+}
+EXPORT_SYMBOL(autoremove_wake_function);
+
+int wake_bit_function(wait_queue_t *wait, unsigned mode, int sync, void *arg)
+{
+	struct wait_bit_key *key = arg;
+	struct wait_bit_queue *wait_bit
+		= container_of(wait, struct wait_bit_queue, wait);
+
+	if (wait_bit->key.flags != key->flags ||
+			wait_bit->key.bit_nr != key->bit_nr ||
+			test_bit(key->bit_nr, key->flags))
+		return 0;
+	else
+		return autoremove_wake_function(wait, mode, sync, key);
+}
+EXPORT_SYMBOL(wake_bit_function);
+
+/*
+ * To allow interruptible waiting and asynchronous (i.e. nonblocking)
+ * waiting, the actions of __wait_on_bit() and __wait_on_bit_lock() are
+ * permitted return codes. Nonzero return codes halt waiting and return.
+ */
+int __sched
+__wait_on_bit(wait_queue_head_t *wq, struct wait_bit_queue *q,
+			int (*action)(void *), unsigned mode)
+{
+	int ret = 0;
+
+	do {
+		prepare_to_wait(wq, &q->wait, mode);
+		if (test_bit(q->key.bit_nr, q->key.flags))
+			ret = (*action)(q->key.flags);
+	} while (test_bit(q->key.bit_nr, q->key.flags) && !ret);
+	finish_wait(wq, &q->wait);
+	return ret;
+}
+EXPORT_SYMBOL(__wait_on_bit);
+
+int __sched out_of_line_wait_on_bit(void *word, int bit,
+					int (*action)(void *), unsigned mode)
+{
+	wait_queue_head_t *wq = bit_waitqueue(word, bit);
+	DEFINE_WAIT_BIT(wait, word, bit);
+
+	return __wait_on_bit(wq, &wait, action, mode);
+}
+EXPORT_SYMBOL(out_of_line_wait_on_bit);
+
+int __sched
+__wait_on_bit_lock(wait_queue_head_t *wq, struct wait_bit_queue *q,
+			int (*action)(void *), unsigned mode)
+{
+	do {
+		int ret;
+
+		prepare_to_wait_exclusive(wq, &q->wait, mode);
+		if (!test_bit(q->key.bit_nr, q->key.flags))
+			continue;
+		ret = action(q->key.flags);
+		if (!ret)
+			continue;
+		abort_exclusive_wait(wq, &q->wait, mode, &q->key);
+		return ret;
+	} while (test_and_set_bit(q->key.bit_nr, q->key.flags));
+	finish_wait(wq, &q->wait);
+	return 0;
+}
+EXPORT_SYMBOL(__wait_on_bit_lock);
+
+int __sched out_of_line_wait_on_bit_lock(void *word, int bit,
+					int (*action)(void *), unsigned mode)
+{
+	wait_queue_head_t *wq = bit_waitqueue(word, bit);
+	DEFINE_WAIT_BIT(wait, word, bit);
+
+	return __wait_on_bit_lock(wq, &wait, action, mode);
+}
+EXPORT_SYMBOL(out_of_line_wait_on_bit_lock);
+
+void __wake_up_bit(wait_queue_head_t *wq, void *word, int bit)
+{
+	struct wait_bit_key key = __WAIT_BIT_KEY_INITIALIZER(word, bit);
+	if (waitqueue_active(wq))
+		__wake_up(wq, TASK_NORMAL, 1, &key);
+}
+EXPORT_SYMBOL(__wake_up_bit);
+
+/**
+ * wake_up_bit - wake up a waiter on a bit
+ * @word: the word being waited on, a kernel virtual address
+ * @bit: the bit of the word being waited on
+ *
+ * There is a standard hashed waitqueue table for generic use. This
+ * is the part of the hashtable's accessor API that wakes up waiters
+ * on a bit. For instance, if one were to have waiters on a bitflag,
+ * one would call wake_up_bit() after clearing the bit.
+ *
+ * In order for this to function properly, as it uses waitqueue_active()
+ * internally, some kind of memory barrier must be done prior to calling
+ * this. Typically, this will be smp_mb__after_clear_bit(), but in some
+ * cases where bitflags are manipulated non-atomically under a lock, one
+ * may need to use a less regular barrier, such fs/inode.c's smp_mb(),
+ * because spin_unlock() does not guarantee a memory barrier.
+ */
+void wake_up_bit(void *word, int bit)
+{
+	__wake_up_bit(bit_waitqueue(word, bit), word, bit);
+}
+EXPORT_SYMBOL(wake_up_bit);
+
+wait_queue_head_t *bit_waitqueue(void *word, int bit)
+{
+	const int shift = BITS_PER_LONG == 32 ? 5 : 6;
+	const struct zone *zone = page_zone(virt_to_page(word));
+	unsigned long val = (unsigned long)word << shift | bit;
+
+	return &zone->wait_table[hash_long(val, zone->wait_table_bits)];
+}
+EXPORT_SYMBOL(bit_waitqueue);
+
+/*
+ * Manipulate the atomic_t address to produce a better bit waitqueue table hash
+ * index (we're keying off bit -1, but that would produce a horrible hash
+ * value).
+ */
+static inline wait_queue_head_t *atomic_t_waitqueue(atomic_t *p)
+{
+	if (BITS_PER_LONG == 64) {
+		unsigned long q = (unsigned long)p;
+		return bit_waitqueue((void *)(q & ~1), q & 1);
+	}
+	return bit_waitqueue(p, 0);
+}
+
+static int wake_atomic_t_function(wait_queue_t *wait, unsigned mode, int sync,
+				  void *arg)
+{
+	struct wait_bit_key *key = arg;
+	struct wait_bit_queue *wait_bit
+		= container_of(wait, struct wait_bit_queue, wait);
+	atomic_t *val = key->flags;
+
+	if (wait_bit->key.flags != key->flags ||
+	    wait_bit->key.bit_nr != key->bit_nr ||
+	    atomic_read(val) != 0)
+		return 0;
+	return autoremove_wake_function(wait, mode, sync, key);
+}
+
+/*
+ * To allow interruptible waiting and asynchronous (i.e. nonblocking) waiting,
+ * the actions of __wait_on_atomic_t() are permitted return codes.  Nonzero
+ * return codes halt waiting and return.
+ */
+static __sched
+int __wait_on_atomic_t(wait_queue_head_t *wq, struct wait_bit_queue *q,
+		       int (*action)(atomic_t *), unsigned mode)
+{
+	atomic_t *val;
+	int ret = 0;
+
+	do {
+		prepare_to_wait(wq, &q->wait, mode);
+		val = q->key.flags;
+		if (atomic_read(val) == 0)
+			break;
+		ret = (*action)(val);
+	} while (!ret && atomic_read(val) != 0);
+	finish_wait(wq, &q->wait);
+	return ret;
+}
+
+#define DEFINE_WAIT_ATOMIC_T(name, p)					\
+	struct wait_bit_queue name = {					\
+		.key = __WAIT_ATOMIC_T_KEY_INITIALIZER(p),		\
+		.wait	= {						\
+			.private	= current,			\
+			.func		= wake_atomic_t_function,	\
+			.task_list	=				\
+				LIST_HEAD_INIT((name).wait.task_list),	\
+		},							\
+	}
+
+__sched int out_of_line_wait_on_atomic_t(atomic_t *p, int (*action)(atomic_t *),
+					 unsigned mode)
+{
+	wait_queue_head_t *wq = atomic_t_waitqueue(p);
+	DEFINE_WAIT_ATOMIC_T(wait, p);
+
+	return __wait_on_atomic_t(wq, &wait, action, mode);
+}
+EXPORT_SYMBOL(out_of_line_wait_on_atomic_t);
+
+/**
+ * wake_up_atomic_t - Wake up a waiter on a atomic_t
+ * @p: The atomic_t being waited on, a kernel virtual address
+ *
+ * Wake up anyone waiting for the atomic_t to go to zero.
+ *
+ * Abuse the bit-waker function and its waitqueue hash table set (the atomic_t
+ * check is done by the waiter's wake function, not the by the waker itself).
+ */
+void wake_up_atomic_t(atomic_t *p)
+{
+	__wake_up_bit(atomic_t_waitqueue(p), p, WAIT_ATOMIC_T_BIT_NR);
+}
+EXPORT_SYMBOL(wake_up_atomic_t);
diff --git a/kernel/wait.c b/kernel/wait.c
deleted file mode 100644
index de21c6305a44..000000000000
--- a/kernel/wait.c
+++ /dev/null
@@ -1,401 +0,0 @@
-/*
- * Generic waiting primitives.
- *
- * (C) 2004 Nadia Yvette Chambers, Oracle
- */
-#include <linux/init.h>
-#include <linux/export.h>
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/wait.h>
-#include <linux/hash.h>
-
-void __init_waitqueue_head(wait_queue_head_t *q, const char *name, struct lock_class_key *key)
-{
-	spin_lock_init(&q->lock);
-	lockdep_set_class_and_name(&q->lock, key, name);
-	INIT_LIST_HEAD(&q->task_list);
-}
-
-EXPORT_SYMBOL(__init_waitqueue_head);
-
-void add_wait_queue(wait_queue_head_t *q, wait_queue_t *wait)
-{
-	unsigned long flags;
-
-	wait->flags &= ~WQ_FLAG_EXCLUSIVE;
-	spin_lock_irqsave(&q->lock, flags);
-	__add_wait_queue(q, wait);
-	spin_unlock_irqrestore(&q->lock, flags);
-}
-EXPORT_SYMBOL(add_wait_queue);
-
-void add_wait_queue_exclusive(wait_queue_head_t *q, wait_queue_t *wait)
-{
-	unsigned long flags;
-
-	wait->flags |= WQ_FLAG_EXCLUSIVE;
-	spin_lock_irqsave(&q->lock, flags);
-	__add_wait_queue_tail(q, wait);
-	spin_unlock_irqrestore(&q->lock, flags);
-}
-EXPORT_SYMBOL(add_wait_queue_exclusive);
-
-void remove_wait_queue(wait_queue_head_t *q, wait_queue_t *wait)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&q->lock, flags);
-	__remove_wait_queue(q, wait);
-	spin_unlock_irqrestore(&q->lock, flags);
-}
-EXPORT_SYMBOL(remove_wait_queue);
-
-
-/*
- * Note: we use "set_current_state()" _after_ the wait-queue add,
- * because we need a memory barrier there on SMP, so that any
- * wake-function that tests for the wait-queue being active
- * will be guaranteed to see waitqueue addition _or_ subsequent
- * tests in this thread will see the wakeup having taken place.
- *
- * The spin_unlock() itself is semi-permeable and only protects
- * one way (it only protects stuff inside the critical region and
- * stops them from bleeding out - it would still allow subsequent
- * loads to move into the critical region).
- */
-void
-prepare_to_wait(wait_queue_head_t *q, wait_queue_t *wait, int state)
-{
-	unsigned long flags;
-
-	wait->flags &= ~WQ_FLAG_EXCLUSIVE;
-	spin_lock_irqsave(&q->lock, flags);
-	if (list_empty(&wait->task_list))
-		__add_wait_queue(q, wait);
-	set_current_state(state);
-	spin_unlock_irqrestore(&q->lock, flags);
-}
-EXPORT_SYMBOL(prepare_to_wait);
-
-void
-prepare_to_wait_exclusive(wait_queue_head_t *q, wait_queue_t *wait, int state)
-{
-	unsigned long flags;
-
-	wait->flags |= WQ_FLAG_EXCLUSIVE;
-	spin_lock_irqsave(&q->lock, flags);
-	if (list_empty(&wait->task_list))
-		__add_wait_queue_tail(q, wait);
-	set_current_state(state);
-	spin_unlock_irqrestore(&q->lock, flags);
-}
-EXPORT_SYMBOL(prepare_to_wait_exclusive);
-
-long prepare_to_wait_event(wait_queue_head_t *q, wait_queue_t *wait, int state)
-{
-	unsigned long flags;
-
-	if (signal_pending_state(state, current))
-		return -ERESTARTSYS;
-
-	wait->private = current;
-	wait->func = autoremove_wake_function;
-
-	spin_lock_irqsave(&q->lock, flags);
-	if (list_empty(&wait->task_list)) {
-		if (wait->flags & WQ_FLAG_EXCLUSIVE)
-			__add_wait_queue_tail(q, wait);
-		else
-			__add_wait_queue(q, wait);
-	}
-	set_current_state(state);
-	spin_unlock_irqrestore(&q->lock, flags);
-
-	return 0;
-}
-EXPORT_SYMBOL(prepare_to_wait_event);
-
-/**
- * finish_wait - clean up after waiting in a queue
- * @q: waitqueue waited on
- * @wait: wait descriptor
- *
- * Sets current thread back to running state and removes
- * the wait descriptor from the given waitqueue if still
- * queued.
- */
-void finish_wait(wait_queue_head_t *q, wait_queue_t *wait)
-{
-	unsigned long flags;
-
-	__set_current_state(TASK_RUNNING);
-	/*
-	 * We can check for list emptiness outside the lock
-	 * IFF:
-	 *  - we use the "careful" check that verifies both
-	 *    the next and prev pointers, so that there cannot
-	 *    be any half-pending updates in progress on other
-	 *    CPU's that we haven't seen yet (and that might
-	 *    still change the stack area.
-	 * and
-	 *  - all other users take the lock (ie we can only
-	 *    have _one_ other CPU that looks at or modifies
-	 *    the list).
-	 */
-	if (!list_empty_careful(&wait->task_list)) {
-		spin_lock_irqsave(&q->lock, flags);
-		list_del_init(&wait->task_list);
-		spin_unlock_irqrestore(&q->lock, flags);
-	}
-}
-EXPORT_SYMBOL(finish_wait);
-
-/**
- * abort_exclusive_wait - abort exclusive waiting in a queue
- * @q: waitqueue waited on
- * @wait: wait descriptor
- * @mode: runstate of the waiter to be woken
- * @key: key to identify a wait bit queue or %NULL
- *
- * Sets current thread back to running state and removes
- * the wait descriptor from the given waitqueue if still
- * queued.
- *
- * Wakes up the next waiter if the caller is concurrently
- * woken up through the queue.
- *
- * This prevents waiter starvation where an exclusive waiter
- * aborts and is woken up concurrently and no one wakes up
- * the next waiter.
- */
-void abort_exclusive_wait(wait_queue_head_t *q, wait_queue_t *wait,
-			unsigned int mode, void *key)
-{
-	unsigned long flags;
-
-	__set_current_state(TASK_RUNNING);
-	spin_lock_irqsave(&q->lock, flags);
-	if (!list_empty(&wait->task_list))
-		list_del_init(&wait->task_list);
-	else if (waitqueue_active(q))
-		__wake_up_locked_key(q, mode, key);
-	spin_unlock_irqrestore(&q->lock, flags);
-}
-EXPORT_SYMBOL(abort_exclusive_wait);
-
-int autoremove_wake_function(wait_queue_t *wait, unsigned mode, int sync, void *key)
-{
-	int ret = default_wake_function(wait, mode, sync, key);
-
-	if (ret)
-		list_del_init(&wait->task_list);
-	return ret;
-}
-EXPORT_SYMBOL(autoremove_wake_function);
-
-int wake_bit_function(wait_queue_t *wait, unsigned mode, int sync, void *arg)
-{
-	struct wait_bit_key *key = arg;
-	struct wait_bit_queue *wait_bit
-		= container_of(wait, struct wait_bit_queue, wait);
-
-	if (wait_bit->key.flags != key->flags ||
-			wait_bit->key.bit_nr != key->bit_nr ||
-			test_bit(key->bit_nr, key->flags))
-		return 0;
-	else
-		return autoremove_wake_function(wait, mode, sync, key);
-}
-EXPORT_SYMBOL(wake_bit_function);
-
-/*
- * To allow interruptible waiting and asynchronous (i.e. nonblocking)
- * waiting, the actions of __wait_on_bit() and __wait_on_bit_lock() are
- * permitted return codes. Nonzero return codes halt waiting and return.
- */
-int __sched
-__wait_on_bit(wait_queue_head_t *wq, struct wait_bit_queue *q,
-			int (*action)(void *), unsigned mode)
-{
-	int ret = 0;
-
-	do {
-		prepare_to_wait(wq, &q->wait, mode);
-		if (test_bit(q->key.bit_nr, q->key.flags))
-			ret = (*action)(q->key.flags);
-	} while (test_bit(q->key.bit_nr, q->key.flags) && !ret);
-	finish_wait(wq, &q->wait);
-	return ret;
-}
-EXPORT_SYMBOL(__wait_on_bit);
-
-int __sched out_of_line_wait_on_bit(void *word, int bit,
-					int (*action)(void *), unsigned mode)
-{
-	wait_queue_head_t *wq = bit_waitqueue(word, bit);
-	DEFINE_WAIT_BIT(wait, word, bit);
-
-	return __wait_on_bit(wq, &wait, action, mode);
-}
-EXPORT_SYMBOL(out_of_line_wait_on_bit);
-
-int __sched
-__wait_on_bit_lock(wait_queue_head_t *wq, struct wait_bit_queue *q,
-			int (*action)(void *), unsigned mode)
-{
-	do {
-		int ret;
-
-		prepare_to_wait_exclusive(wq, &q->wait, mode);
-		if (!test_bit(q->key.bit_nr, q->key.flags))
-			continue;
-		ret = action(q->key.flags);
-		if (!ret)
-			continue;
-		abort_exclusive_wait(wq, &q->wait, mode, &q->key);
-		return ret;
-	} while (test_and_set_bit(q->key.bit_nr, q->key.flags));
-	finish_wait(wq, &q->wait);
-	return 0;
-}
-EXPORT_SYMBOL(__wait_on_bit_lock);
-
-int __sched out_of_line_wait_on_bit_lock(void *word, int bit,
-					int (*action)(void *), unsigned mode)
-{
-	wait_queue_head_t *wq = bit_waitqueue(word, bit);
-	DEFINE_WAIT_BIT(wait, word, bit);
-
-	return __wait_on_bit_lock(wq, &wait, action, mode);
-}
-EXPORT_SYMBOL(out_of_line_wait_on_bit_lock);
-
-void __wake_up_bit(wait_queue_head_t *wq, void *word, int bit)
-{
-	struct wait_bit_key key = __WAIT_BIT_KEY_INITIALIZER(word, bit);
-	if (waitqueue_active(wq))
-		__wake_up(wq, TASK_NORMAL, 1, &key);
-}
-EXPORT_SYMBOL(__wake_up_bit);
-
-/**
- * wake_up_bit - wake up a waiter on a bit
- * @word: the word being waited on, a kernel virtual address
- * @bit: the bit of the word being waited on
- *
- * There is a standard hashed waitqueue table for generic use. This
- * is the part of the hashtable's accessor API that wakes up waiters
- * on a bit. For instance, if one were to have waiters on a bitflag,
- * one would call wake_up_bit() after clearing the bit.
- *
- * In order for this to function properly, as it uses waitqueue_active()
- * internally, some kind of memory barrier must be done prior to calling
- * this. Typically, this will be smp_mb__after_clear_bit(), but in some
- * cases where bitflags are manipulated non-atomically under a lock, one
- * may need to use a less regular barrier, such fs/inode.c's smp_mb(),
- * because spin_unlock() does not guarantee a memory barrier.
- */
-void wake_up_bit(void *word, int bit)
-{
-	__wake_up_bit(bit_waitqueue(word, bit), word, bit);
-}
-EXPORT_SYMBOL(wake_up_bit);
-
-wait_queue_head_t *bit_waitqueue(void *word, int bit)
-{
-	const int shift = BITS_PER_LONG == 32 ? 5 : 6;
-	const struct zone *zone = page_zone(virt_to_page(word));
-	unsigned long val = (unsigned long)word << shift | bit;
-
-	return &zone->wait_table[hash_long(val, zone->wait_table_bits)];
-}
-EXPORT_SYMBOL(bit_waitqueue);
-
-/*
- * Manipulate the atomic_t address to produce a better bit waitqueue table hash
- * index (we're keying off bit -1, but that would produce a horrible hash
- * value).
- */
-static inline wait_queue_head_t *atomic_t_waitqueue(atomic_t *p)
-{
-	if (BITS_PER_LONG == 64) {
-		unsigned long q = (unsigned long)p;
-		return bit_waitqueue((void *)(q & ~1), q & 1);
-	}
-	return bit_waitqueue(p, 0);
-}
-
-static int wake_atomic_t_function(wait_queue_t *wait, unsigned mode, int sync,
-				  void *arg)
-{
-	struct wait_bit_key *key = arg;
-	struct wait_bit_queue *wait_bit
-		= container_of(wait, struct wait_bit_queue, wait);
-	atomic_t *val = key->flags;
-
-	if (wait_bit->key.flags != key->flags ||
-	    wait_bit->key.bit_nr != key->bit_nr ||
-	    atomic_read(val) != 0)
-		return 0;
-	return autoremove_wake_function(wait, mode, sync, key);
-}
-
-/*
- * To allow interruptible waiting and asynchronous (i.e. nonblocking) waiting,
- * the actions of __wait_on_atomic_t() are permitted return codes.  Nonzero
- * return codes halt waiting and return.
- */
-static __sched
-int __wait_on_atomic_t(wait_queue_head_t *wq, struct wait_bit_queue *q,
-		       int (*action)(atomic_t *), unsigned mode)
-{
-	atomic_t *val;
-	int ret = 0;
-
-	do {
-		prepare_to_wait(wq, &q->wait, mode);
-		val = q->key.flags;
-		if (atomic_read(val) == 0)
-			break;
-		ret = (*action)(val);
-	} while (!ret && atomic_read(val) != 0);
-	finish_wait(wq, &q->wait);
-	return ret;
-}
-
-#define DEFINE_WAIT_ATOMIC_T(name, p)					\
-	struct wait_bit_queue name = {					\
-		.key = __WAIT_ATOMIC_T_KEY_INITIALIZER(p),		\
-		.wait	= {						\
-			.private	= current,			\
-			.func		= wake_atomic_t_function,	\
-			.task_list	=				\
-				LIST_HEAD_INIT((name).wait.task_list),	\
-		},							\
-	}
-
-__sched int out_of_line_wait_on_atomic_t(atomic_t *p, int (*action)(atomic_t *),
-					 unsigned mode)
-{
-	wait_queue_head_t *wq = atomic_t_waitqueue(p);
-	DEFINE_WAIT_ATOMIC_T(wait, p);
-
-	return __wait_on_atomic_t(wq, &wait, action, mode);
-}
-EXPORT_SYMBOL(out_of_line_wait_on_atomic_t);
-
-/**
- * wake_up_atomic_t - Wake up a waiter on a atomic_t
- * @p: The atomic_t being waited on, a kernel virtual address
- *
- * Wake up anyone waiting for the atomic_t to go to zero.
- *
- * Abuse the bit-waker function and its waitqueue hash table set (the atomic_t
- * check is done by the waiter's wake function, not the by the waker itself).
- */
-void wake_up_atomic_t(atomic_t *p)
-{
-	__wake_up_bit(atomic_t_waitqueue(p), p, WAIT_ATOMIC_T_BIT_NR);
-}
-EXPORT_SYMBOL(wake_up_atomic_t);
-- 
cgit 


From b4145872f7049e429718b40b86e1b46659988398 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Fri, 4 Oct 2013 17:24:35 +0200
Subject: sched: Move wait code from core.c to wait.c

For some reason only the wait part of the wait api lives in
kernel/sched/wait.c and the wake part still lives in kernel/sched/core.c;
ammend this.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/n/tip-ftycee88naznulqk7ei5mbci@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/core.c | 107 +---------------------------------------------------
 kernel/sched/wait.c | 103 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 105 insertions(+), 105 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 450a34b2a637..91b28454c218 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2688,109 +2688,6 @@ int default_wake_function(wait_queue_t *curr, unsigned mode, int wake_flags,
 }
 EXPORT_SYMBOL(default_wake_function);
 
-/*
- * The core wakeup function. Non-exclusive wakeups (nr_exclusive == 0) just
- * wake everything up. If it's an exclusive wakeup (nr_exclusive == small +ve
- * number) then we wake all the non-exclusive tasks and one exclusive task.
- *
- * There are circumstances in which we can try to wake a task which has already
- * started to run but is not in state TASK_RUNNING. try_to_wake_up() returns
- * zero in this (rare) case, and we handle it by continuing to scan the queue.
- */
-static void __wake_up_common(wait_queue_head_t *q, unsigned int mode,
-			int nr_exclusive, int wake_flags, void *key)
-{
-	wait_queue_t *curr, *next;
-
-	list_for_each_entry_safe(curr, next, &q->task_list, task_list) {
-		unsigned flags = curr->flags;
-
-		if (curr->func(curr, mode, wake_flags, key) &&
-				(flags & WQ_FLAG_EXCLUSIVE) && !--nr_exclusive)
-			break;
-	}
-}
-
-/**
- * __wake_up - wake up threads blocked on a waitqueue.
- * @q: the waitqueue
- * @mode: which threads
- * @nr_exclusive: how many wake-one or wake-many threads to wake up
- * @key: is directly passed to the wakeup function
- *
- * It may be assumed that this function implies a write memory barrier before
- * changing the task state if and only if any tasks are woken up.
- */
-void __wake_up(wait_queue_head_t *q, unsigned int mode,
-			int nr_exclusive, void *key)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&q->lock, flags);
-	__wake_up_common(q, mode, nr_exclusive, 0, key);
-	spin_unlock_irqrestore(&q->lock, flags);
-}
-EXPORT_SYMBOL(__wake_up);
-
-/*
- * Same as __wake_up but called with the spinlock in wait_queue_head_t held.
- */
-void __wake_up_locked(wait_queue_head_t *q, unsigned int mode, int nr)
-{
-	__wake_up_common(q, mode, nr, 0, NULL);
-}
-EXPORT_SYMBOL_GPL(__wake_up_locked);
-
-void __wake_up_locked_key(wait_queue_head_t *q, unsigned int mode, void *key)
-{
-	__wake_up_common(q, mode, 1, 0, key);
-}
-EXPORT_SYMBOL_GPL(__wake_up_locked_key);
-
-/**
- * __wake_up_sync_key - wake up threads blocked on a waitqueue.
- * @q: the waitqueue
- * @mode: which threads
- * @nr_exclusive: how many wake-one or wake-many threads to wake up
- * @key: opaque value to be passed to wakeup targets
- *
- * The sync wakeup differs that the waker knows that it will schedule
- * away soon, so while the target thread will be woken up, it will not
- * be migrated to another CPU - ie. the two threads are 'synchronized'
- * with each other. This can prevent needless bouncing between CPUs.
- *
- * On UP it can prevent extra preemption.
- *
- * It may be assumed that this function implies a write memory barrier before
- * changing the task state if and only if any tasks are woken up.
- */
-void __wake_up_sync_key(wait_queue_head_t *q, unsigned int mode,
-			int nr_exclusive, void *key)
-{
-	unsigned long flags;
-	int wake_flags = WF_SYNC;
-
-	if (unlikely(!q))
-		return;
-
-	if (unlikely(nr_exclusive != 1))
-		wake_flags = 0;
-
-	spin_lock_irqsave(&q->lock, flags);
-	__wake_up_common(q, mode, nr_exclusive, wake_flags, key);
-	spin_unlock_irqrestore(&q->lock, flags);
-}
-EXPORT_SYMBOL_GPL(__wake_up_sync_key);
-
-/*
- * __wake_up_sync - see __wake_up_sync_key()
- */
-void __wake_up_sync(wait_queue_head_t *q, unsigned int mode, int nr_exclusive)
-{
-	__wake_up_sync_key(q, mode, nr_exclusive, NULL);
-}
-EXPORT_SYMBOL_GPL(__wake_up_sync);	/* For internal use only */
-
 /**
  * complete: - signals a single thread waiting on this completion
  * @x:  holds the state of this particular completion
@@ -2809,7 +2706,7 @@ void complete(struct completion *x)
 
 	spin_lock_irqsave(&x->wait.lock, flags);
 	x->done++;
-	__wake_up_common(&x->wait, TASK_NORMAL, 1, 0, NULL);
+	__wake_up_locked(&x->wait, TASK_NORMAL, 1);
 	spin_unlock_irqrestore(&x->wait.lock, flags);
 }
 EXPORT_SYMBOL(complete);
@@ -2829,7 +2726,7 @@ void complete_all(struct completion *x)
 
 	spin_lock_irqsave(&x->wait.lock, flags);
 	x->done += UINT_MAX/2;
-	__wake_up_common(&x->wait, TASK_NORMAL, 0, 0, NULL);
+	__wake_up_locked(&x->wait, TASK_NORMAL, 0);
 	spin_unlock_irqrestore(&x->wait.lock, flags);
 }
 EXPORT_SYMBOL(complete_all);
diff --git a/kernel/sched/wait.c b/kernel/sched/wait.c
index de21c6305a44..7d50f794e248 100644
--- a/kernel/sched/wait.c
+++ b/kernel/sched/wait.c
@@ -52,6 +52,109 @@ void remove_wait_queue(wait_queue_head_t *q, wait_queue_t *wait)
 EXPORT_SYMBOL(remove_wait_queue);
 
 
+/*
+ * The core wakeup function. Non-exclusive wakeups (nr_exclusive == 0) just
+ * wake everything up. If it's an exclusive wakeup (nr_exclusive == small +ve
+ * number) then we wake all the non-exclusive tasks and one exclusive task.
+ *
+ * There are circumstances in which we can try to wake a task which has already
+ * started to run but is not in state TASK_RUNNING. try_to_wake_up() returns
+ * zero in this (rare) case, and we handle it by continuing to scan the queue.
+ */
+static void __wake_up_common(wait_queue_head_t *q, unsigned int mode,
+			int nr_exclusive, int wake_flags, void *key)
+{
+	wait_queue_t *curr, *next;
+
+	list_for_each_entry_safe(curr, next, &q->task_list, task_list) {
+		unsigned flags = curr->flags;
+
+		if (curr->func(curr, mode, wake_flags, key) &&
+				(flags & WQ_FLAG_EXCLUSIVE) && !--nr_exclusive)
+			break;
+	}
+}
+
+/**
+ * __wake_up - wake up threads blocked on a waitqueue.
+ * @q: the waitqueue
+ * @mode: which threads
+ * @nr_exclusive: how many wake-one or wake-many threads to wake up
+ * @key: is directly passed to the wakeup function
+ *
+ * It may be assumed that this function implies a write memory barrier before
+ * changing the task state if and only if any tasks are woken up.
+ */
+void __wake_up(wait_queue_head_t *q, unsigned int mode,
+			int nr_exclusive, void *key)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&q->lock, flags);
+	__wake_up_common(q, mode, nr_exclusive, 0, key);
+	spin_unlock_irqrestore(&q->lock, flags);
+}
+EXPORT_SYMBOL(__wake_up);
+
+/*
+ * Same as __wake_up but called with the spinlock in wait_queue_head_t held.
+ */
+void __wake_up_locked(wait_queue_head_t *q, unsigned int mode, int nr)
+{
+	__wake_up_common(q, mode, nr, 0, NULL);
+}
+EXPORT_SYMBOL_GPL(__wake_up_locked);
+
+void __wake_up_locked_key(wait_queue_head_t *q, unsigned int mode, void *key)
+{
+	__wake_up_common(q, mode, 1, 0, key);
+}
+EXPORT_SYMBOL_GPL(__wake_up_locked_key);
+
+/**
+ * __wake_up_sync_key - wake up threads blocked on a waitqueue.
+ * @q: the waitqueue
+ * @mode: which threads
+ * @nr_exclusive: how many wake-one or wake-many threads to wake up
+ * @key: opaque value to be passed to wakeup targets
+ *
+ * The sync wakeup differs that the waker knows that it will schedule
+ * away soon, so while the target thread will be woken up, it will not
+ * be migrated to another CPU - ie. the two threads are 'synchronized'
+ * with each other. This can prevent needless bouncing between CPUs.
+ *
+ * On UP it can prevent extra preemption.
+ *
+ * It may be assumed that this function implies a write memory barrier before
+ * changing the task state if and only if any tasks are woken up.
+ */
+void __wake_up_sync_key(wait_queue_head_t *q, unsigned int mode,
+			int nr_exclusive, void *key)
+{
+	unsigned long flags;
+	int wake_flags = 1; /* XXX WF_SYNC */
+
+	if (unlikely(!q))
+		return;
+
+	if (unlikely(nr_exclusive != 1))
+		wake_flags = 0;
+
+	spin_lock_irqsave(&q->lock, flags);
+	__wake_up_common(q, mode, nr_exclusive, wake_flags, key);
+	spin_unlock_irqrestore(&q->lock, flags);
+}
+EXPORT_SYMBOL_GPL(__wake_up_sync_key);
+
+/*
+ * __wake_up_sync - see __wake_up_sync_key()
+ */
+void __wake_up_sync(wait_queue_head_t *q, unsigned int mode, int nr_exclusive)
+{
+	__wake_up_sync_key(q, mode, nr_exclusive, NULL);
+}
+EXPORT_SYMBOL_GPL(__wake_up_sync);	/* For internal use only */
+
 /*
  * Note: we use "set_current_state()" _after_ the wait-queue add,
  * because we need a memory barrier there on SMP, so that any
-- 
cgit 


From b8a216269ec0ce2e961d32e6d640d7010b8a818e Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Fri, 4 Oct 2013 22:06:53 +0200
Subject: sched: Move completion code from core.c to completion.c

Completions already have their own header file: linux/completion.h
Move the implementation out of kernel/sched/core.c and into its own
file: kernel/sched/completion.c.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/n/tip-x2y49rmxu5dljt66ai2lcfuw@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/completion.h |   2 +-
 kernel/sched/Makefile      |   2 +-
 kernel/sched/completion.c  | 299 +++++++++++++++++++++++++++++++++++++++++++++
 kernel/sched/core.c        | 284 ------------------------------------------
 4 files changed, 301 insertions(+), 286 deletions(-)
 create mode 100644 kernel/sched/completion.c

diff --git a/include/linux/completion.h b/include/linux/completion.h
index 3cd574d5b19e..22c33e35bcb2 100644
--- a/include/linux/completion.h
+++ b/include/linux/completion.h
@@ -5,7 +5,7 @@
  * (C) Copyright 2001 Linus Torvalds
  *
  * Atomic wait-for-completion handler data structures.
- * See kernel/sched/core.c for details.
+ * See kernel/sched/completion.c for details.
  */
 
 #include <linux/wait.h>
diff --git a/kernel/sched/Makefile b/kernel/sched/Makefile
index f8d3f4baa1a1..7b621409cf15 100644
--- a/kernel/sched/Makefile
+++ b/kernel/sched/Makefile
@@ -12,7 +12,7 @@ CFLAGS_core.o := $(PROFILING) -fno-omit-frame-pointer
 endif
 
 obj-y += core.o proc.o clock.o cputime.o idle_task.o fair.o rt.o stop_task.o
-obj-y += wait.o
+obj-y += wait.o completion.o
 obj-$(CONFIG_SMP) += cpupri.o
 obj-$(CONFIG_SCHED_AUTOGROUP) += auto_group.o
 obj-$(CONFIG_SCHEDSTATS) += stats.o
diff --git a/kernel/sched/completion.c b/kernel/sched/completion.c
new file mode 100644
index 000000000000..a63f4dc27909
--- /dev/null
+++ b/kernel/sched/completion.c
@@ -0,0 +1,299 @@
+/*
+ * Generic wait-for-completion handler;
+ *
+ * It differs from semaphores in that their default case is the opposite,
+ * wait_for_completion default blocks whereas semaphore default non-block. The
+ * interface also makes it easy to 'complete' multiple waiting threads,
+ * something which isn't entirely natural for semaphores.
+ *
+ * But more importantly, the primitive documents the usage. Semaphores would
+ * typically be used for exclusion which gives rise to priority inversion.
+ * Waiting for completion is a typically sync point, but not an exclusion point.
+ */
+
+#include <linux/sched.h>
+#include <linux/completion.h>
+
+/**
+ * complete: - signals a single thread waiting on this completion
+ * @x:  holds the state of this particular completion
+ *
+ * This will wake up a single thread waiting on this completion. Threads will be
+ * awakened in the same order in which they were queued.
+ *
+ * See also complete_all(), wait_for_completion() and related routines.
+ *
+ * It may be assumed that this function implies a write memory barrier before
+ * changing the task state if and only if any tasks are woken up.
+ */
+void complete(struct completion *x)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&x->wait.lock, flags);
+	x->done++;
+	__wake_up_locked(&x->wait, TASK_NORMAL, 1);
+	spin_unlock_irqrestore(&x->wait.lock, flags);
+}
+EXPORT_SYMBOL(complete);
+
+/**
+ * complete_all: - signals all threads waiting on this completion
+ * @x:  holds the state of this particular completion
+ *
+ * This will wake up all threads waiting on this particular completion event.
+ *
+ * It may be assumed that this function implies a write memory barrier before
+ * changing the task state if and only if any tasks are woken up.
+ */
+void complete_all(struct completion *x)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&x->wait.lock, flags);
+	x->done += UINT_MAX/2;
+	__wake_up_locked(&x->wait, TASK_NORMAL, 0);
+	spin_unlock_irqrestore(&x->wait.lock, flags);
+}
+EXPORT_SYMBOL(complete_all);
+
+static inline long __sched
+do_wait_for_common(struct completion *x,
+		   long (*action)(long), long timeout, int state)
+{
+	if (!x->done) {
+		DECLARE_WAITQUEUE(wait, current);
+
+		__add_wait_queue_tail_exclusive(&x->wait, &wait);
+		do {
+			if (signal_pending_state(state, current)) {
+				timeout = -ERESTARTSYS;
+				break;
+			}
+			__set_current_state(state);
+			spin_unlock_irq(&x->wait.lock);
+			timeout = action(timeout);
+			spin_lock_irq(&x->wait.lock);
+		} while (!x->done && timeout);
+		__remove_wait_queue(&x->wait, &wait);
+		if (!x->done)
+			return timeout;
+	}
+	x->done--;
+	return timeout ?: 1;
+}
+
+static inline long __sched
+__wait_for_common(struct completion *x,
+		  long (*action)(long), long timeout, int state)
+{
+	might_sleep();
+
+	spin_lock_irq(&x->wait.lock);
+	timeout = do_wait_for_common(x, action, timeout, state);
+	spin_unlock_irq(&x->wait.lock);
+	return timeout;
+}
+
+static long __sched
+wait_for_common(struct completion *x, long timeout, int state)
+{
+	return __wait_for_common(x, schedule_timeout, timeout, state);
+}
+
+static long __sched
+wait_for_common_io(struct completion *x, long timeout, int state)
+{
+	return __wait_for_common(x, io_schedule_timeout, timeout, state);
+}
+
+/**
+ * wait_for_completion: - waits for completion of a task
+ * @x:  holds the state of this particular completion
+ *
+ * This waits to be signaled for completion of a specific task. It is NOT
+ * interruptible and there is no timeout.
+ *
+ * See also similar routines (i.e. wait_for_completion_timeout()) with timeout
+ * and interrupt capability. Also see complete().
+ */
+void __sched wait_for_completion(struct completion *x)
+{
+	wait_for_common(x, MAX_SCHEDULE_TIMEOUT, TASK_UNINTERRUPTIBLE);
+}
+EXPORT_SYMBOL(wait_for_completion);
+
+/**
+ * wait_for_completion_timeout: - waits for completion of a task (w/timeout)
+ * @x:  holds the state of this particular completion
+ * @timeout:  timeout value in jiffies
+ *
+ * This waits for either a completion of a specific task to be signaled or for a
+ * specified timeout to expire. The timeout is in jiffies. It is not
+ * interruptible.
+ *
+ * Return: 0 if timed out, and positive (at least 1, or number of jiffies left
+ * till timeout) if completed.
+ */
+unsigned long __sched
+wait_for_completion_timeout(struct completion *x, unsigned long timeout)
+{
+	return wait_for_common(x, timeout, TASK_UNINTERRUPTIBLE);
+}
+EXPORT_SYMBOL(wait_for_completion_timeout);
+
+/**
+ * wait_for_completion_io: - waits for completion of a task
+ * @x:  holds the state of this particular completion
+ *
+ * This waits to be signaled for completion of a specific task. It is NOT
+ * interruptible and there is no timeout. The caller is accounted as waiting
+ * for IO.
+ */
+void __sched wait_for_completion_io(struct completion *x)
+{
+	wait_for_common_io(x, MAX_SCHEDULE_TIMEOUT, TASK_UNINTERRUPTIBLE);
+}
+EXPORT_SYMBOL(wait_for_completion_io);
+
+/**
+ * wait_for_completion_io_timeout: - waits for completion of a task (w/timeout)
+ * @x:  holds the state of this particular completion
+ * @timeout:  timeout value in jiffies
+ *
+ * This waits for either a completion of a specific task to be signaled or for a
+ * specified timeout to expire. The timeout is in jiffies. It is not
+ * interruptible. The caller is accounted as waiting for IO.
+ *
+ * Return: 0 if timed out, and positive (at least 1, or number of jiffies left
+ * till timeout) if completed.
+ */
+unsigned long __sched
+wait_for_completion_io_timeout(struct completion *x, unsigned long timeout)
+{
+	return wait_for_common_io(x, timeout, TASK_UNINTERRUPTIBLE);
+}
+EXPORT_SYMBOL(wait_for_completion_io_timeout);
+
+/**
+ * wait_for_completion_interruptible: - waits for completion of a task (w/intr)
+ * @x:  holds the state of this particular completion
+ *
+ * This waits for completion of a specific task to be signaled. It is
+ * interruptible.
+ *
+ * Return: -ERESTARTSYS if interrupted, 0 if completed.
+ */
+int __sched wait_for_completion_interruptible(struct completion *x)
+{
+	long t = wait_for_common(x, MAX_SCHEDULE_TIMEOUT, TASK_INTERRUPTIBLE);
+	if (t == -ERESTARTSYS)
+		return t;
+	return 0;
+}
+EXPORT_SYMBOL(wait_for_completion_interruptible);
+
+/**
+ * wait_for_completion_interruptible_timeout: - waits for completion (w/(to,intr))
+ * @x:  holds the state of this particular completion
+ * @timeout:  timeout value in jiffies
+ *
+ * This waits for either a completion of a specific task to be signaled or for a
+ * specified timeout to expire. It is interruptible. The timeout is in jiffies.
+ *
+ * Return: -ERESTARTSYS if interrupted, 0 if timed out, positive (at least 1,
+ * or number of jiffies left till timeout) if completed.
+ */
+long __sched
+wait_for_completion_interruptible_timeout(struct completion *x,
+					  unsigned long timeout)
+{
+	return wait_for_common(x, timeout, TASK_INTERRUPTIBLE);
+}
+EXPORT_SYMBOL(wait_for_completion_interruptible_timeout);
+
+/**
+ * wait_for_completion_killable: - waits for completion of a task (killable)
+ * @x:  holds the state of this particular completion
+ *
+ * This waits to be signaled for completion of a specific task. It can be
+ * interrupted by a kill signal.
+ *
+ * Return: -ERESTARTSYS if interrupted, 0 if completed.
+ */
+int __sched wait_for_completion_killable(struct completion *x)
+{
+	long t = wait_for_common(x, MAX_SCHEDULE_TIMEOUT, TASK_KILLABLE);
+	if (t == -ERESTARTSYS)
+		return t;
+	return 0;
+}
+EXPORT_SYMBOL(wait_for_completion_killable);
+
+/**
+ * wait_for_completion_killable_timeout: - waits for completion of a task (w/(to,killable))
+ * @x:  holds the state of this particular completion
+ * @timeout:  timeout value in jiffies
+ *
+ * This waits for either a completion of a specific task to be
+ * signaled or for a specified timeout to expire. It can be
+ * interrupted by a kill signal. The timeout is in jiffies.
+ *
+ * Return: -ERESTARTSYS if interrupted, 0 if timed out, positive (at least 1,
+ * or number of jiffies left till timeout) if completed.
+ */
+long __sched
+wait_for_completion_killable_timeout(struct completion *x,
+				     unsigned long timeout)
+{
+	return wait_for_common(x, timeout, TASK_KILLABLE);
+}
+EXPORT_SYMBOL(wait_for_completion_killable_timeout);
+
+/**
+ *	try_wait_for_completion - try to decrement a completion without blocking
+ *	@x:	completion structure
+ *
+ *	Return: 0 if a decrement cannot be done without blocking
+ *		 1 if a decrement succeeded.
+ *
+ *	If a completion is being used as a counting completion,
+ *	attempt to decrement the counter without blocking. This
+ *	enables us to avoid waiting if the resource the completion
+ *	is protecting is not available.
+ */
+bool try_wait_for_completion(struct completion *x)
+{
+	unsigned long flags;
+	int ret = 1;
+
+	spin_lock_irqsave(&x->wait.lock, flags);
+	if (!x->done)
+		ret = 0;
+	else
+		x->done--;
+	spin_unlock_irqrestore(&x->wait.lock, flags);
+	return ret;
+}
+EXPORT_SYMBOL(try_wait_for_completion);
+
+/**
+ *	completion_done - Test to see if a completion has any waiters
+ *	@x:	completion structure
+ *
+ *	Return: 0 if there are waiters (wait_for_completion() in progress)
+ *		 1 if there are no waiters.
+ *
+ */
+bool completion_done(struct completion *x)
+{
+	unsigned long flags;
+	int ret = 1;
+
+	spin_lock_irqsave(&x->wait.lock, flags);
+	if (!x->done)
+		ret = 0;
+	spin_unlock_irqrestore(&x->wait.lock, flags);
+	return ret;
+}
+EXPORT_SYMBOL(completion_done);
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 91b28454c218..aa066f306be2 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2688,290 +2688,6 @@ int default_wake_function(wait_queue_t *curr, unsigned mode, int wake_flags,
 }
 EXPORT_SYMBOL(default_wake_function);
 
-/**
- * complete: - signals a single thread waiting on this completion
- * @x:  holds the state of this particular completion
- *
- * This will wake up a single thread waiting on this completion. Threads will be
- * awakened in the same order in which they were queued.
- *
- * See also complete_all(), wait_for_completion() and related routines.
- *
- * It may be assumed that this function implies a write memory barrier before
- * changing the task state if and only if any tasks are woken up.
- */
-void complete(struct completion *x)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&x->wait.lock, flags);
-	x->done++;
-	__wake_up_locked(&x->wait, TASK_NORMAL, 1);
-	spin_unlock_irqrestore(&x->wait.lock, flags);
-}
-EXPORT_SYMBOL(complete);
-
-/**
- * complete_all: - signals all threads waiting on this completion
- * @x:  holds the state of this particular completion
- *
- * This will wake up all threads waiting on this particular completion event.
- *
- * It may be assumed that this function implies a write memory barrier before
- * changing the task state if and only if any tasks are woken up.
- */
-void complete_all(struct completion *x)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&x->wait.lock, flags);
-	x->done += UINT_MAX/2;
-	__wake_up_locked(&x->wait, TASK_NORMAL, 0);
-	spin_unlock_irqrestore(&x->wait.lock, flags);
-}
-EXPORT_SYMBOL(complete_all);
-
-static inline long __sched
-do_wait_for_common(struct completion *x,
-		   long (*action)(long), long timeout, int state)
-{
-	if (!x->done) {
-		DECLARE_WAITQUEUE(wait, current);
-
-		__add_wait_queue_tail_exclusive(&x->wait, &wait);
-		do {
-			if (signal_pending_state(state, current)) {
-				timeout = -ERESTARTSYS;
-				break;
-			}
-			__set_current_state(state);
-			spin_unlock_irq(&x->wait.lock);
-			timeout = action(timeout);
-			spin_lock_irq(&x->wait.lock);
-		} while (!x->done && timeout);
-		__remove_wait_queue(&x->wait, &wait);
-		if (!x->done)
-			return timeout;
-	}
-	x->done--;
-	return timeout ?: 1;
-}
-
-static inline long __sched
-__wait_for_common(struct completion *x,
-		  long (*action)(long), long timeout, int state)
-{
-	might_sleep();
-
-	spin_lock_irq(&x->wait.lock);
-	timeout = do_wait_for_common(x, action, timeout, state);
-	spin_unlock_irq(&x->wait.lock);
-	return timeout;
-}
-
-static long __sched
-wait_for_common(struct completion *x, long timeout, int state)
-{
-	return __wait_for_common(x, schedule_timeout, timeout, state);
-}
-
-static long __sched
-wait_for_common_io(struct completion *x, long timeout, int state)
-{
-	return __wait_for_common(x, io_schedule_timeout, timeout, state);
-}
-
-/**
- * wait_for_completion: - waits for completion of a task
- * @x:  holds the state of this particular completion
- *
- * This waits to be signaled for completion of a specific task. It is NOT
- * interruptible and there is no timeout.
- *
- * See also similar routines (i.e. wait_for_completion_timeout()) with timeout
- * and interrupt capability. Also see complete().
- */
-void __sched wait_for_completion(struct completion *x)
-{
-	wait_for_common(x, MAX_SCHEDULE_TIMEOUT, TASK_UNINTERRUPTIBLE);
-}
-EXPORT_SYMBOL(wait_for_completion);
-
-/**
- * wait_for_completion_timeout: - waits for completion of a task (w/timeout)
- * @x:  holds the state of this particular completion
- * @timeout:  timeout value in jiffies
- *
- * This waits for either a completion of a specific task to be signaled or for a
- * specified timeout to expire. The timeout is in jiffies. It is not
- * interruptible.
- *
- * Return: 0 if timed out, and positive (at least 1, or number of jiffies left
- * till timeout) if completed.
- */
-unsigned long __sched
-wait_for_completion_timeout(struct completion *x, unsigned long timeout)
-{
-	return wait_for_common(x, timeout, TASK_UNINTERRUPTIBLE);
-}
-EXPORT_SYMBOL(wait_for_completion_timeout);
-
-/**
- * wait_for_completion_io: - waits for completion of a task
- * @x:  holds the state of this particular completion
- *
- * This waits to be signaled for completion of a specific task. It is NOT
- * interruptible and there is no timeout. The caller is accounted as waiting
- * for IO.
- */
-void __sched wait_for_completion_io(struct completion *x)
-{
-	wait_for_common_io(x, MAX_SCHEDULE_TIMEOUT, TASK_UNINTERRUPTIBLE);
-}
-EXPORT_SYMBOL(wait_for_completion_io);
-
-/**
- * wait_for_completion_io_timeout: - waits for completion of a task (w/timeout)
- * @x:  holds the state of this particular completion
- * @timeout:  timeout value in jiffies
- *
- * This waits for either a completion of a specific task to be signaled or for a
- * specified timeout to expire. The timeout is in jiffies. It is not
- * interruptible. The caller is accounted as waiting for IO.
- *
- * Return: 0 if timed out, and positive (at least 1, or number of jiffies left
- * till timeout) if completed.
- */
-unsigned long __sched
-wait_for_completion_io_timeout(struct completion *x, unsigned long timeout)
-{
-	return wait_for_common_io(x, timeout, TASK_UNINTERRUPTIBLE);
-}
-EXPORT_SYMBOL(wait_for_completion_io_timeout);
-
-/**
- * wait_for_completion_interruptible: - waits for completion of a task (w/intr)
- * @x:  holds the state of this particular completion
- *
- * This waits for completion of a specific task to be signaled. It is
- * interruptible.
- *
- * Return: -ERESTARTSYS if interrupted, 0 if completed.
- */
-int __sched wait_for_completion_interruptible(struct completion *x)
-{
-	long t = wait_for_common(x, MAX_SCHEDULE_TIMEOUT, TASK_INTERRUPTIBLE);
-	if (t == -ERESTARTSYS)
-		return t;
-	return 0;
-}
-EXPORT_SYMBOL(wait_for_completion_interruptible);
-
-/**
- * wait_for_completion_interruptible_timeout: - waits for completion (w/(to,intr))
- * @x:  holds the state of this particular completion
- * @timeout:  timeout value in jiffies
- *
- * This waits for either a completion of a specific task to be signaled or for a
- * specified timeout to expire. It is interruptible. The timeout is in jiffies.
- *
- * Return: -ERESTARTSYS if interrupted, 0 if timed out, positive (at least 1,
- * or number of jiffies left till timeout) if completed.
- */
-long __sched
-wait_for_completion_interruptible_timeout(struct completion *x,
-					  unsigned long timeout)
-{
-	return wait_for_common(x, timeout, TASK_INTERRUPTIBLE);
-}
-EXPORT_SYMBOL(wait_for_completion_interruptible_timeout);
-
-/**
- * wait_for_completion_killable: - waits for completion of a task (killable)
- * @x:  holds the state of this particular completion
- *
- * This waits to be signaled for completion of a specific task. It can be
- * interrupted by a kill signal.
- *
- * Return: -ERESTARTSYS if interrupted, 0 if completed.
- */
-int __sched wait_for_completion_killable(struct completion *x)
-{
-	long t = wait_for_common(x, MAX_SCHEDULE_TIMEOUT, TASK_KILLABLE);
-	if (t == -ERESTARTSYS)
-		return t;
-	return 0;
-}
-EXPORT_SYMBOL(wait_for_completion_killable);
-
-/**
- * wait_for_completion_killable_timeout: - waits for completion of a task (w/(to,killable))
- * @x:  holds the state of this particular completion
- * @timeout:  timeout value in jiffies
- *
- * This waits for either a completion of a specific task to be
- * signaled or for a specified timeout to expire. It can be
- * interrupted by a kill signal. The timeout is in jiffies.
- *
- * Return: -ERESTARTSYS if interrupted, 0 if timed out, positive (at least 1,
- * or number of jiffies left till timeout) if completed.
- */
-long __sched
-wait_for_completion_killable_timeout(struct completion *x,
-				     unsigned long timeout)
-{
-	return wait_for_common(x, timeout, TASK_KILLABLE);
-}
-EXPORT_SYMBOL(wait_for_completion_killable_timeout);
-
-/**
- *	try_wait_for_completion - try to decrement a completion without blocking
- *	@x:	completion structure
- *
- *	Return: 0 if a decrement cannot be done without blocking
- *		 1 if a decrement succeeded.
- *
- *	If a completion is being used as a counting completion,
- *	attempt to decrement the counter without blocking. This
- *	enables us to avoid waiting if the resource the completion
- *	is protecting is not available.
- */
-bool try_wait_for_completion(struct completion *x)
-{
-	unsigned long flags;
-	int ret = 1;
-
-	spin_lock_irqsave(&x->wait.lock, flags);
-	if (!x->done)
-		ret = 0;
-	else
-		x->done--;
-	spin_unlock_irqrestore(&x->wait.lock, flags);
-	return ret;
-}
-EXPORT_SYMBOL(try_wait_for_completion);
-
-/**
- *	completion_done - Test to see if a completion has any waiters
- *	@x:	completion structure
- *
- *	Return: 0 if there are waiters (wait_for_completion() in progress)
- *		 1 if there are no waiters.
- *
- */
-bool completion_done(struct completion *x)
-{
-	unsigned long flags;
-	int ret = 1;
-
-	spin_lock_irqsave(&x->wait.lock, flags);
-	if (!x->done)
-		ret = 0;
-	spin_unlock_irqrestore(&x->wait.lock, flags);
-	return ret;
-}
-EXPORT_SYMBOL(completion_done);
-
 static long __sched
 sleep_on_common(wait_queue_head_t *q, int state, long timeout)
 {
-- 
cgit 


From 01768b42dc97a67b4fb33a2535c49fc1969880df Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 31 Oct 2013 18:11:53 +0100
Subject: locking: Move the mutex code to kernel/locking/

Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-1ditvncg30dgbpvrz2bxfmke@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/Makefile              |   6 +-
 kernel/locking/Makefile      |   9 +
 kernel/locking/mutex-debug.c | 110 +++++
 kernel/locking/mutex-debug.h |  55 +++
 kernel/locking/mutex.c       | 960 +++++++++++++++++++++++++++++++++++++++++++
 kernel/locking/mutex.h       |  48 +++
 kernel/mutex-debug.c         | 110 -----
 kernel/mutex-debug.h         |  55 ---
 kernel/mutex.c               | 960 -------------------------------------------
 kernel/mutex.h               |  48 ---
 10 files changed, 1184 insertions(+), 1177 deletions(-)
 create mode 100644 kernel/locking/Makefile
 create mode 100644 kernel/locking/mutex-debug.c
 create mode 100644 kernel/locking/mutex-debug.h
 create mode 100644 kernel/locking/mutex.c
 create mode 100644 kernel/locking/mutex.h
 delete mode 100644 kernel/mutex-debug.c
 delete mode 100644 kernel/mutex-debug.h
 delete mode 100644 kernel/mutex.c
 delete mode 100644 kernel/mutex.h

diff --git a/kernel/Makefile b/kernel/Makefile
index a4d1aa8da9bc..330b14666475 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -7,7 +7,7 @@ obj-y     = fork.o exec_domain.o panic.o \
 	    sysctl.o sysctl_binary.o capability.o ptrace.o timer.o user.o \
 	    signal.o sys.o kmod.o workqueue.o pid.o task_work.o \
 	    extable.o params.o posix-timers.o \
-	    kthread.o sys_ni.o posix-cpu-timers.o mutex.o \
+	    kthread.o sys_ni.o posix-cpu-timers.o \
 	    hrtimer.o rwsem.o nsproxy.o semaphore.o \
 	    notifier.o ksysfs.o cred.o reboot.o \
 	    async.o range.o groups.o lglock.o smpboot.o
@@ -16,13 +16,12 @@ ifdef CONFIG_FUNCTION_TRACER
 # Do not trace debug files and internal ftrace files
 CFLAGS_REMOVE_lockdep.o = -pg
 CFLAGS_REMOVE_lockdep_proc.o = -pg
-CFLAGS_REMOVE_mutex-debug.o = -pg
-CFLAGS_REMOVE_rtmutex-debug.o = -pg
 CFLAGS_REMOVE_cgroup-debug.o = -pg
 CFLAGS_REMOVE_irq_work.o = -pg
 endif
 
 obj-y += sched/
+obj-y += locking/
 obj-y += power/
 obj-y += printk/
 obj-y += cpu/
@@ -34,7 +33,6 @@ obj-$(CONFIG_FREEZER) += freezer.o
 obj-$(CONFIG_PROFILING) += profile.o
 obj-$(CONFIG_STACKTRACE) += stacktrace.o
 obj-y += time/
-obj-$(CONFIG_DEBUG_MUTEXES) += mutex-debug.o
 obj-$(CONFIG_LOCKDEP) += lockdep.o
 ifeq ($(CONFIG_PROC_FS),y)
 obj-$(CONFIG_LOCKDEP) += lockdep_proc.o
diff --git a/kernel/locking/Makefile b/kernel/locking/Makefile
new file mode 100644
index 000000000000..fe8bd58b22f8
--- /dev/null
+++ b/kernel/locking/Makefile
@@ -0,0 +1,9 @@
+
+obj-y += mutex.o
+
+ifdef CONFIG_FUNCTION_TRACER
+CFLAGS_REMOVE_mutex-debug.o = -pg
+CFLAGS_REMOVE_rtmutex-debug.o = -pg
+endif
+
+obj-$(CONFIG_DEBUG_MUTEXES) += mutex-debug.o
diff --git a/kernel/locking/mutex-debug.c b/kernel/locking/mutex-debug.c
new file mode 100644
index 000000000000..7e3443fe1f48
--- /dev/null
+++ b/kernel/locking/mutex-debug.c
@@ -0,0 +1,110 @@
+/*
+ * kernel/mutex-debug.c
+ *
+ * Debugging code for mutexes
+ *
+ * Started by Ingo Molnar:
+ *
+ *  Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
+ *
+ * lock debugging, locking tree, deadlock detection started by:
+ *
+ *  Copyright (C) 2004, LynuxWorks, Inc., Igor Manyilov, Bill Huey
+ *  Released under the General Public License (GPL).
+ */
+#include <linux/mutex.h>
+#include <linux/delay.h>
+#include <linux/export.h>
+#include <linux/poison.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/kallsyms.h>
+#include <linux/interrupt.h>
+#include <linux/debug_locks.h>
+
+#include "mutex-debug.h"
+
+/*
+ * Must be called with lock->wait_lock held.
+ */
+void debug_mutex_lock_common(struct mutex *lock, struct mutex_waiter *waiter)
+{
+	memset(waiter, MUTEX_DEBUG_INIT, sizeof(*waiter));
+	waiter->magic = waiter;
+	INIT_LIST_HEAD(&waiter->list);
+}
+
+void debug_mutex_wake_waiter(struct mutex *lock, struct mutex_waiter *waiter)
+{
+	SMP_DEBUG_LOCKS_WARN_ON(!spin_is_locked(&lock->wait_lock));
+	DEBUG_LOCKS_WARN_ON(list_empty(&lock->wait_list));
+	DEBUG_LOCKS_WARN_ON(waiter->magic != waiter);
+	DEBUG_LOCKS_WARN_ON(list_empty(&waiter->list));
+}
+
+void debug_mutex_free_waiter(struct mutex_waiter *waiter)
+{
+	DEBUG_LOCKS_WARN_ON(!list_empty(&waiter->list));
+	memset(waiter, MUTEX_DEBUG_FREE, sizeof(*waiter));
+}
+
+void debug_mutex_add_waiter(struct mutex *lock, struct mutex_waiter *waiter,
+			    struct thread_info *ti)
+{
+	SMP_DEBUG_LOCKS_WARN_ON(!spin_is_locked(&lock->wait_lock));
+
+	/* Mark the current thread as blocked on the lock: */
+	ti->task->blocked_on = waiter;
+}
+
+void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
+			 struct thread_info *ti)
+{
+	DEBUG_LOCKS_WARN_ON(list_empty(&waiter->list));
+	DEBUG_LOCKS_WARN_ON(waiter->task != ti->task);
+	DEBUG_LOCKS_WARN_ON(ti->task->blocked_on != waiter);
+	ti->task->blocked_on = NULL;
+
+	list_del_init(&waiter->list);
+	waiter->task = NULL;
+}
+
+void debug_mutex_unlock(struct mutex *lock)
+{
+	if (unlikely(!debug_locks))
+		return;
+
+	DEBUG_LOCKS_WARN_ON(lock->magic != lock);
+	DEBUG_LOCKS_WARN_ON(lock->owner != current);
+	DEBUG_LOCKS_WARN_ON(!lock->wait_list.prev && !lock->wait_list.next);
+	mutex_clear_owner(lock);
+}
+
+void debug_mutex_init(struct mutex *lock, const char *name,
+		      struct lock_class_key *key)
+{
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+	/*
+	 * Make sure we are not reinitializing a held lock:
+	 */
+	debug_check_no_locks_freed((void *)lock, sizeof(*lock));
+	lockdep_init_map(&lock->dep_map, name, key, 0);
+#endif
+	lock->magic = lock;
+}
+
+/***
+ * mutex_destroy - mark a mutex unusable
+ * @lock: the mutex to be destroyed
+ *
+ * This function marks the mutex uninitialized, and any subsequent
+ * use of the mutex is forbidden. The mutex must not be locked when
+ * this function is called.
+ */
+void mutex_destroy(struct mutex *lock)
+{
+	DEBUG_LOCKS_WARN_ON(mutex_is_locked(lock));
+	lock->magic = NULL;
+}
+
+EXPORT_SYMBOL_GPL(mutex_destroy);
diff --git a/kernel/locking/mutex-debug.h b/kernel/locking/mutex-debug.h
new file mode 100644
index 000000000000..0799fd3e4cfa
--- /dev/null
+++ b/kernel/locking/mutex-debug.h
@@ -0,0 +1,55 @@
+/*
+ * Mutexes: blocking mutual exclusion locks
+ *
+ * started by Ingo Molnar:
+ *
+ *  Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
+ *
+ * This file contains mutex debugging related internal declarations,
+ * prototypes and inline functions, for the CONFIG_DEBUG_MUTEXES case.
+ * More details are in kernel/mutex-debug.c.
+ */
+
+/*
+ * This must be called with lock->wait_lock held.
+ */
+extern void debug_mutex_lock_common(struct mutex *lock,
+				    struct mutex_waiter *waiter);
+extern void debug_mutex_wake_waiter(struct mutex *lock,
+				    struct mutex_waiter *waiter);
+extern void debug_mutex_free_waiter(struct mutex_waiter *waiter);
+extern void debug_mutex_add_waiter(struct mutex *lock,
+				   struct mutex_waiter *waiter,
+				   struct thread_info *ti);
+extern void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
+				struct thread_info *ti);
+extern void debug_mutex_unlock(struct mutex *lock);
+extern void debug_mutex_init(struct mutex *lock, const char *name,
+			     struct lock_class_key *key);
+
+static inline void mutex_set_owner(struct mutex *lock)
+{
+	lock->owner = current;
+}
+
+static inline void mutex_clear_owner(struct mutex *lock)
+{
+	lock->owner = NULL;
+}
+
+#define spin_lock_mutex(lock, flags)			\
+	do {						\
+		struct mutex *l = container_of(lock, struct mutex, wait_lock); \
+							\
+		DEBUG_LOCKS_WARN_ON(in_interrupt());	\
+		local_irq_save(flags);			\
+		arch_spin_lock(&(lock)->rlock.raw_lock);\
+		DEBUG_LOCKS_WARN_ON(l->magic != l);	\
+	} while (0)
+
+#define spin_unlock_mutex(lock, flags)				\
+	do {							\
+		arch_spin_unlock(&(lock)->rlock.raw_lock);	\
+		local_irq_restore(flags);			\
+		preempt_check_resched();			\
+	} while (0)
diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
new file mode 100644
index 000000000000..d24105b1b794
--- /dev/null
+++ b/kernel/locking/mutex.c
@@ -0,0 +1,960 @@
+/*
+ * kernel/mutex.c
+ *
+ * Mutexes: blocking mutual exclusion locks
+ *
+ * Started by Ingo Molnar:
+ *
+ *  Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
+ *
+ * Many thanks to Arjan van de Ven, Thomas Gleixner, Steven Rostedt and
+ * David Howells for suggestions and improvements.
+ *
+ *  - Adaptive spinning for mutexes by Peter Zijlstra. (Ported to mainline
+ *    from the -rt tree, where it was originally implemented for rtmutexes
+ *    by Steven Rostedt, based on work by Gregory Haskins, Peter Morreale
+ *    and Sven Dietrich.
+ *
+ * Also see Documentation/mutex-design.txt.
+ */
+#include <linux/mutex.h>
+#include <linux/ww_mutex.h>
+#include <linux/sched.h>
+#include <linux/sched/rt.h>
+#include <linux/export.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/debug_locks.h>
+
+/*
+ * In the DEBUG case we are using the "NULL fastpath" for mutexes,
+ * which forces all calls into the slowpath:
+ */
+#ifdef CONFIG_DEBUG_MUTEXES
+# include "mutex-debug.h"
+# include <asm-generic/mutex-null.h>
+#else
+# include "mutex.h"
+# include <asm/mutex.h>
+#endif
+
+/*
+ * A negative mutex count indicates that waiters are sleeping waiting for the
+ * mutex.
+ */
+#define	MUTEX_SHOW_NO_WAITER(mutex)	(atomic_read(&(mutex)->count) >= 0)
+
+void
+__mutex_init(struct mutex *lock, const char *name, struct lock_class_key *key)
+{
+	atomic_set(&lock->count, 1);
+	spin_lock_init(&lock->wait_lock);
+	INIT_LIST_HEAD(&lock->wait_list);
+	mutex_clear_owner(lock);
+#ifdef CONFIG_MUTEX_SPIN_ON_OWNER
+	lock->spin_mlock = NULL;
+#endif
+
+	debug_mutex_init(lock, name, key);
+}
+
+EXPORT_SYMBOL(__mutex_init);
+
+#ifndef CONFIG_DEBUG_LOCK_ALLOC
+/*
+ * We split the mutex lock/unlock logic into separate fastpath and
+ * slowpath functions, to reduce the register pressure on the fastpath.
+ * We also put the fastpath first in the kernel image, to make sure the
+ * branch is predicted by the CPU as default-untaken.
+ */
+static __used noinline void __sched
+__mutex_lock_slowpath(atomic_t *lock_count);
+
+/**
+ * mutex_lock - acquire the mutex
+ * @lock: the mutex to be acquired
+ *
+ * Lock the mutex exclusively for this task. If the mutex is not
+ * available right now, it will sleep until it can get it.
+ *
+ * The mutex must later on be released by the same task that
+ * acquired it. Recursive locking is not allowed. The task
+ * may not exit without first unlocking the mutex. Also, kernel
+ * memory where the mutex resides mutex must not be freed with
+ * the mutex still locked. The mutex must first be initialized
+ * (or statically defined) before it can be locked. memset()-ing
+ * the mutex to 0 is not allowed.
+ *
+ * ( The CONFIG_DEBUG_MUTEXES .config option turns on debugging
+ *   checks that will enforce the restrictions and will also do
+ *   deadlock debugging. )
+ *
+ * This function is similar to (but not equivalent to) down().
+ */
+void __sched mutex_lock(struct mutex *lock)
+{
+	might_sleep();
+	/*
+	 * The locking fastpath is the 1->0 transition from
+	 * 'unlocked' into 'locked' state.
+	 */
+	__mutex_fastpath_lock(&lock->count, __mutex_lock_slowpath);
+	mutex_set_owner(lock);
+}
+
+EXPORT_SYMBOL(mutex_lock);
+#endif
+
+#ifdef CONFIG_MUTEX_SPIN_ON_OWNER
+/*
+ * In order to avoid a stampede of mutex spinners from acquiring the mutex
+ * more or less simultaneously, the spinners need to acquire a MCS lock
+ * first before spinning on the owner field.
+ *
+ * We don't inline mspin_lock() so that perf can correctly account for the
+ * time spent in this lock function.
+ */
+struct mspin_node {
+	struct mspin_node *next ;
+	int		  locked;	/* 1 if lock acquired */
+};
+#define	MLOCK(mutex)	((struct mspin_node **)&((mutex)->spin_mlock))
+
+static noinline
+void mspin_lock(struct mspin_node **lock, struct mspin_node *node)
+{
+	struct mspin_node *prev;
+
+	/* Init node */
+	node->locked = 0;
+	node->next   = NULL;
+
+	prev = xchg(lock, node);
+	if (likely(prev == NULL)) {
+		/* Lock acquired */
+		node->locked = 1;
+		return;
+	}
+	ACCESS_ONCE(prev->next) = node;
+	smp_wmb();
+	/* Wait until the lock holder passes the lock down */
+	while (!ACCESS_ONCE(node->locked))
+		arch_mutex_cpu_relax();
+}
+
+static void mspin_unlock(struct mspin_node **lock, struct mspin_node *node)
+{
+	struct mspin_node *next = ACCESS_ONCE(node->next);
+
+	if (likely(!next)) {
+		/*
+		 * Release the lock by setting it to NULL
+		 */
+		if (cmpxchg(lock, node, NULL) == node)
+			return;
+		/* Wait until the next pointer is set */
+		while (!(next = ACCESS_ONCE(node->next)))
+			arch_mutex_cpu_relax();
+	}
+	ACCESS_ONCE(next->locked) = 1;
+	smp_wmb();
+}
+
+/*
+ * Mutex spinning code migrated from kernel/sched/core.c
+ */
+
+static inline bool owner_running(struct mutex *lock, struct task_struct *owner)
+{
+	if (lock->owner != owner)
+		return false;
+
+	/*
+	 * Ensure we emit the owner->on_cpu, dereference _after_ checking
+	 * lock->owner still matches owner, if that fails, owner might
+	 * point to free()d memory, if it still matches, the rcu_read_lock()
+	 * ensures the memory stays valid.
+	 */
+	barrier();
+
+	return owner->on_cpu;
+}
+
+/*
+ * Look out! "owner" is an entirely speculative pointer
+ * access and not reliable.
+ */
+static noinline
+int mutex_spin_on_owner(struct mutex *lock, struct task_struct *owner)
+{
+	rcu_read_lock();
+	while (owner_running(lock, owner)) {
+		if (need_resched())
+			break;
+
+		arch_mutex_cpu_relax();
+	}
+	rcu_read_unlock();
+
+	/*
+	 * We break out the loop above on need_resched() and when the
+	 * owner changed, which is a sign for heavy contention. Return
+	 * success only when lock->owner is NULL.
+	 */
+	return lock->owner == NULL;
+}
+
+/*
+ * Initial check for entering the mutex spinning loop
+ */
+static inline int mutex_can_spin_on_owner(struct mutex *lock)
+{
+	struct task_struct *owner;
+	int retval = 1;
+
+	rcu_read_lock();
+	owner = ACCESS_ONCE(lock->owner);
+	if (owner)
+		retval = owner->on_cpu;
+	rcu_read_unlock();
+	/*
+	 * if lock->owner is not set, the mutex owner may have just acquired
+	 * it and not set the owner yet or the mutex has been released.
+	 */
+	return retval;
+}
+#endif
+
+static __used noinline void __sched __mutex_unlock_slowpath(atomic_t *lock_count);
+
+/**
+ * mutex_unlock - release the mutex
+ * @lock: the mutex to be released
+ *
+ * Unlock a mutex that has been locked by this task previously.
+ *
+ * This function must not be used in interrupt context. Unlocking
+ * of a not locked mutex is not allowed.
+ *
+ * This function is similar to (but not equivalent to) up().
+ */
+void __sched mutex_unlock(struct mutex *lock)
+{
+	/*
+	 * The unlocking fastpath is the 0->1 transition from 'locked'
+	 * into 'unlocked' state:
+	 */
+#ifndef CONFIG_DEBUG_MUTEXES
+	/*
+	 * When debugging is enabled we must not clear the owner before time,
+	 * the slow path will always be taken, and that clears the owner field
+	 * after verifying that it was indeed current.
+	 */
+	mutex_clear_owner(lock);
+#endif
+	__mutex_fastpath_unlock(&lock->count, __mutex_unlock_slowpath);
+}
+
+EXPORT_SYMBOL(mutex_unlock);
+
+/**
+ * ww_mutex_unlock - release the w/w mutex
+ * @lock: the mutex to be released
+ *
+ * Unlock a mutex that has been locked by this task previously with any of the
+ * ww_mutex_lock* functions (with or without an acquire context). It is
+ * forbidden to release the locks after releasing the acquire context.
+ *
+ * This function must not be used in interrupt context. Unlocking
+ * of a unlocked mutex is not allowed.
+ */
+void __sched ww_mutex_unlock(struct ww_mutex *lock)
+{
+	/*
+	 * The unlocking fastpath is the 0->1 transition from 'locked'
+	 * into 'unlocked' state:
+	 */
+	if (lock->ctx) {
+#ifdef CONFIG_DEBUG_MUTEXES
+		DEBUG_LOCKS_WARN_ON(!lock->ctx->acquired);
+#endif
+		if (lock->ctx->acquired > 0)
+			lock->ctx->acquired--;
+		lock->ctx = NULL;
+	}
+
+#ifndef CONFIG_DEBUG_MUTEXES
+	/*
+	 * When debugging is enabled we must not clear the owner before time,
+	 * the slow path will always be taken, and that clears the owner field
+	 * after verifying that it was indeed current.
+	 */
+	mutex_clear_owner(&lock->base);
+#endif
+	__mutex_fastpath_unlock(&lock->base.count, __mutex_unlock_slowpath);
+}
+EXPORT_SYMBOL(ww_mutex_unlock);
+
+static inline int __sched
+__mutex_lock_check_stamp(struct mutex *lock, struct ww_acquire_ctx *ctx)
+{
+	struct ww_mutex *ww = container_of(lock, struct ww_mutex, base);
+	struct ww_acquire_ctx *hold_ctx = ACCESS_ONCE(ww->ctx);
+
+	if (!hold_ctx)
+		return 0;
+
+	if (unlikely(ctx == hold_ctx))
+		return -EALREADY;
+
+	if (ctx->stamp - hold_ctx->stamp <= LONG_MAX &&
+	    (ctx->stamp != hold_ctx->stamp || ctx > hold_ctx)) {
+#ifdef CONFIG_DEBUG_MUTEXES
+		DEBUG_LOCKS_WARN_ON(ctx->contending_lock);
+		ctx->contending_lock = ww;
+#endif
+		return -EDEADLK;
+	}
+
+	return 0;
+}
+
+static __always_inline void ww_mutex_lock_acquired(struct ww_mutex *ww,
+						   struct ww_acquire_ctx *ww_ctx)
+{
+#ifdef CONFIG_DEBUG_MUTEXES
+	/*
+	 * If this WARN_ON triggers, you used ww_mutex_lock to acquire,
+	 * but released with a normal mutex_unlock in this call.
+	 *
+	 * This should never happen, always use ww_mutex_unlock.
+	 */
+	DEBUG_LOCKS_WARN_ON(ww->ctx);
+
+	/*
+	 * Not quite done after calling ww_acquire_done() ?
+	 */
+	DEBUG_LOCKS_WARN_ON(ww_ctx->done_acquire);
+
+	if (ww_ctx->contending_lock) {
+		/*
+		 * After -EDEADLK you tried to
+		 * acquire a different ww_mutex? Bad!
+		 */
+		DEBUG_LOCKS_WARN_ON(ww_ctx->contending_lock != ww);
+
+		/*
+		 * You called ww_mutex_lock after receiving -EDEADLK,
+		 * but 'forgot' to unlock everything else first?
+		 */
+		DEBUG_LOCKS_WARN_ON(ww_ctx->acquired > 0);
+		ww_ctx->contending_lock = NULL;
+	}
+
+	/*
+	 * Naughty, using a different class will lead to undefined behavior!
+	 */
+	DEBUG_LOCKS_WARN_ON(ww_ctx->ww_class != ww->ww_class);
+#endif
+	ww_ctx->acquired++;
+}
+
+/*
+ * after acquiring lock with fastpath or when we lost out in contested
+ * slowpath, set ctx and wake up any waiters so they can recheck.
+ *
+ * This function is never called when CONFIG_DEBUG_LOCK_ALLOC is set,
+ * as the fastpath and opportunistic spinning are disabled in that case.
+ */
+static __always_inline void
+ww_mutex_set_context_fastpath(struct ww_mutex *lock,
+			       struct ww_acquire_ctx *ctx)
+{
+	unsigned long flags;
+	struct mutex_waiter *cur;
+
+	ww_mutex_lock_acquired(lock, ctx);
+
+	lock->ctx = ctx;
+
+	/*
+	 * The lock->ctx update should be visible on all cores before
+	 * the atomic read is done, otherwise contended waiters might be
+	 * missed. The contended waiters will either see ww_ctx == NULL
+	 * and keep spinning, or it will acquire wait_lock, add itself
+	 * to waiter list and sleep.
+	 */
+	smp_mb(); /* ^^^ */
+
+	/*
+	 * Check if lock is contended, if not there is nobody to wake up
+	 */
+	if (likely(atomic_read(&lock->base.count) == 0))
+		return;
+
+	/*
+	 * Uh oh, we raced in fastpath, wake up everyone in this case,
+	 * so they can see the new lock->ctx.
+	 */
+	spin_lock_mutex(&lock->base.wait_lock, flags);
+	list_for_each_entry(cur, &lock->base.wait_list, list) {
+		debug_mutex_wake_waiter(&lock->base, cur);
+		wake_up_process(cur->task);
+	}
+	spin_unlock_mutex(&lock->base.wait_lock, flags);
+}
+
+/*
+ * Lock a mutex (possibly interruptible), slowpath:
+ */
+static __always_inline int __sched
+__mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
+		    struct lockdep_map *nest_lock, unsigned long ip,
+		    struct ww_acquire_ctx *ww_ctx, const bool use_ww_ctx)
+{
+	struct task_struct *task = current;
+	struct mutex_waiter waiter;
+	unsigned long flags;
+	int ret;
+
+	preempt_disable();
+	mutex_acquire_nest(&lock->dep_map, subclass, 0, nest_lock, ip);
+
+#ifdef CONFIG_MUTEX_SPIN_ON_OWNER
+	/*
+	 * Optimistic spinning.
+	 *
+	 * We try to spin for acquisition when we find that there are no
+	 * pending waiters and the lock owner is currently running on a
+	 * (different) CPU.
+	 *
+	 * The rationale is that if the lock owner is running, it is likely to
+	 * release the lock soon.
+	 *
+	 * Since this needs the lock owner, and this mutex implementation
+	 * doesn't track the owner atomically in the lock field, we need to
+	 * track it non-atomically.
+	 *
+	 * We can't do this for DEBUG_MUTEXES because that relies on wait_lock
+	 * to serialize everything.
+	 *
+	 * The mutex spinners are queued up using MCS lock so that only one
+	 * spinner can compete for the mutex. However, if mutex spinning isn't
+	 * going to happen, there is no point in going through the lock/unlock
+	 * overhead.
+	 */
+	if (!mutex_can_spin_on_owner(lock))
+		goto slowpath;
+
+	for (;;) {
+		struct task_struct *owner;
+		struct mspin_node  node;
+
+		if (use_ww_ctx && ww_ctx->acquired > 0) {
+			struct ww_mutex *ww;
+
+			ww = container_of(lock, struct ww_mutex, base);
+			/*
+			 * If ww->ctx is set the contents are undefined, only
+			 * by acquiring wait_lock there is a guarantee that
+			 * they are not invalid when reading.
+			 *
+			 * As such, when deadlock detection needs to be
+			 * performed the optimistic spinning cannot be done.
+			 */
+			if (ACCESS_ONCE(ww->ctx))
+				goto slowpath;
+		}
+
+		/*
+		 * If there's an owner, wait for it to either
+		 * release the lock or go to sleep.
+		 */
+		mspin_lock(MLOCK(lock), &node);
+		owner = ACCESS_ONCE(lock->owner);
+		if (owner && !mutex_spin_on_owner(lock, owner)) {
+			mspin_unlock(MLOCK(lock), &node);
+			goto slowpath;
+		}
+
+		if ((atomic_read(&lock->count) == 1) &&
+		    (atomic_cmpxchg(&lock->count, 1, 0) == 1)) {
+			lock_acquired(&lock->dep_map, ip);
+			if (use_ww_ctx) {
+				struct ww_mutex *ww;
+				ww = container_of(lock, struct ww_mutex, base);
+
+				ww_mutex_set_context_fastpath(ww, ww_ctx);
+			}
+
+			mutex_set_owner(lock);
+			mspin_unlock(MLOCK(lock), &node);
+			preempt_enable();
+			return 0;
+		}
+		mspin_unlock(MLOCK(lock), &node);
+
+		/*
+		 * When there's no owner, we might have preempted between the
+		 * owner acquiring the lock and setting the owner field. If
+		 * we're an RT task that will live-lock because we won't let
+		 * the owner complete.
+		 */
+		if (!owner && (need_resched() || rt_task(task)))
+			goto slowpath;
+
+		/*
+		 * The cpu_relax() call is a compiler barrier which forces
+		 * everything in this loop to be re-loaded. We don't need
+		 * memory barriers as we'll eventually observe the right
+		 * values at the cost of a few extra spins.
+		 */
+		arch_mutex_cpu_relax();
+	}
+slowpath:
+#endif
+	spin_lock_mutex(&lock->wait_lock, flags);
+
+	/* once more, can we acquire the lock? */
+	if (MUTEX_SHOW_NO_WAITER(lock) && (atomic_xchg(&lock->count, 0) == 1))
+		goto skip_wait;
+
+	debug_mutex_lock_common(lock, &waiter);
+	debug_mutex_add_waiter(lock, &waiter, task_thread_info(task));
+
+	/* add waiting tasks to the end of the waitqueue (FIFO): */
+	list_add_tail(&waiter.list, &lock->wait_list);
+	waiter.task = task;
+
+	lock_contended(&lock->dep_map, ip);
+
+	for (;;) {
+		/*
+		 * Lets try to take the lock again - this is needed even if
+		 * we get here for the first time (shortly after failing to
+		 * acquire the lock), to make sure that we get a wakeup once
+		 * it's unlocked. Later on, if we sleep, this is the
+		 * operation that gives us the lock. We xchg it to -1, so
+		 * that when we release the lock, we properly wake up the
+		 * other waiters:
+		 */
+		if (MUTEX_SHOW_NO_WAITER(lock) &&
+		    (atomic_xchg(&lock->count, -1) == 1))
+			break;
+
+		/*
+		 * got a signal? (This code gets eliminated in the
+		 * TASK_UNINTERRUPTIBLE case.)
+		 */
+		if (unlikely(signal_pending_state(state, task))) {
+			ret = -EINTR;
+			goto err;
+		}
+
+		if (use_ww_ctx && ww_ctx->acquired > 0) {
+			ret = __mutex_lock_check_stamp(lock, ww_ctx);
+			if (ret)
+				goto err;
+		}
+
+		__set_task_state(task, state);
+
+		/* didn't get the lock, go to sleep: */
+		spin_unlock_mutex(&lock->wait_lock, flags);
+		schedule_preempt_disabled();
+		spin_lock_mutex(&lock->wait_lock, flags);
+	}
+	mutex_remove_waiter(lock, &waiter, current_thread_info());
+	/* set it to 0 if there are no waiters left: */
+	if (likely(list_empty(&lock->wait_list)))
+		atomic_set(&lock->count, 0);
+	debug_mutex_free_waiter(&waiter);
+
+skip_wait:
+	/* got the lock - cleanup and rejoice! */
+	lock_acquired(&lock->dep_map, ip);
+	mutex_set_owner(lock);
+
+	if (use_ww_ctx) {
+		struct ww_mutex *ww = container_of(lock, struct ww_mutex, base);
+		struct mutex_waiter *cur;
+
+		/*
+		 * This branch gets optimized out for the common case,
+		 * and is only important for ww_mutex_lock.
+		 */
+		ww_mutex_lock_acquired(ww, ww_ctx);
+		ww->ctx = ww_ctx;
+
+		/*
+		 * Give any possible sleeping processes the chance to wake up,
+		 * so they can recheck if they have to back off.
+		 */
+		list_for_each_entry(cur, &lock->wait_list, list) {
+			debug_mutex_wake_waiter(lock, cur);
+			wake_up_process(cur->task);
+		}
+	}
+
+	spin_unlock_mutex(&lock->wait_lock, flags);
+	preempt_enable();
+	return 0;
+
+err:
+	mutex_remove_waiter(lock, &waiter, task_thread_info(task));
+	spin_unlock_mutex(&lock->wait_lock, flags);
+	debug_mutex_free_waiter(&waiter);
+	mutex_release(&lock->dep_map, 1, ip);
+	preempt_enable();
+	return ret;
+}
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+void __sched
+mutex_lock_nested(struct mutex *lock, unsigned int subclass)
+{
+	might_sleep();
+	__mutex_lock_common(lock, TASK_UNINTERRUPTIBLE,
+			    subclass, NULL, _RET_IP_, NULL, 0);
+}
+
+EXPORT_SYMBOL_GPL(mutex_lock_nested);
+
+void __sched
+_mutex_lock_nest_lock(struct mutex *lock, struct lockdep_map *nest)
+{
+	might_sleep();
+	__mutex_lock_common(lock, TASK_UNINTERRUPTIBLE,
+			    0, nest, _RET_IP_, NULL, 0);
+}
+
+EXPORT_SYMBOL_GPL(_mutex_lock_nest_lock);
+
+int __sched
+mutex_lock_killable_nested(struct mutex *lock, unsigned int subclass)
+{
+	might_sleep();
+	return __mutex_lock_common(lock, TASK_KILLABLE,
+				   subclass, NULL, _RET_IP_, NULL, 0);
+}
+EXPORT_SYMBOL_GPL(mutex_lock_killable_nested);
+
+int __sched
+mutex_lock_interruptible_nested(struct mutex *lock, unsigned int subclass)
+{
+	might_sleep();
+	return __mutex_lock_common(lock, TASK_INTERRUPTIBLE,
+				   subclass, NULL, _RET_IP_, NULL, 0);
+}
+
+EXPORT_SYMBOL_GPL(mutex_lock_interruptible_nested);
+
+static inline int
+ww_mutex_deadlock_injection(struct ww_mutex *lock, struct ww_acquire_ctx *ctx)
+{
+#ifdef CONFIG_DEBUG_WW_MUTEX_SLOWPATH
+	unsigned tmp;
+
+	if (ctx->deadlock_inject_countdown-- == 0) {
+		tmp = ctx->deadlock_inject_interval;
+		if (tmp > UINT_MAX/4)
+			tmp = UINT_MAX;
+		else
+			tmp = tmp*2 + tmp + tmp/2;
+
+		ctx->deadlock_inject_interval = tmp;
+		ctx->deadlock_inject_countdown = tmp;
+		ctx->contending_lock = lock;
+
+		ww_mutex_unlock(lock);
+
+		return -EDEADLK;
+	}
+#endif
+
+	return 0;
+}
+
+int __sched
+__ww_mutex_lock(struct ww_mutex *lock, struct ww_acquire_ctx *ctx)
+{
+	int ret;
+
+	might_sleep();
+	ret =  __mutex_lock_common(&lock->base, TASK_UNINTERRUPTIBLE,
+				   0, &ctx->dep_map, _RET_IP_, ctx, 1);
+	if (!ret && ctx->acquired > 1)
+		return ww_mutex_deadlock_injection(lock, ctx);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(__ww_mutex_lock);
+
+int __sched
+__ww_mutex_lock_interruptible(struct ww_mutex *lock, struct ww_acquire_ctx *ctx)
+{
+	int ret;
+
+	might_sleep();
+	ret = __mutex_lock_common(&lock->base, TASK_INTERRUPTIBLE,
+				  0, &ctx->dep_map, _RET_IP_, ctx, 1);
+
+	if (!ret && ctx->acquired > 1)
+		return ww_mutex_deadlock_injection(lock, ctx);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(__ww_mutex_lock_interruptible);
+
+#endif
+
+/*
+ * Release the lock, slowpath:
+ */
+static inline void
+__mutex_unlock_common_slowpath(atomic_t *lock_count, int nested)
+{
+	struct mutex *lock = container_of(lock_count, struct mutex, count);
+	unsigned long flags;
+
+	spin_lock_mutex(&lock->wait_lock, flags);
+	mutex_release(&lock->dep_map, nested, _RET_IP_);
+	debug_mutex_unlock(lock);
+
+	/*
+	 * some architectures leave the lock unlocked in the fastpath failure
+	 * case, others need to leave it locked. In the later case we have to
+	 * unlock it here
+	 */
+	if (__mutex_slowpath_needs_to_unlock())
+		atomic_set(&lock->count, 1);
+
+	if (!list_empty(&lock->wait_list)) {
+		/* get the first entry from the wait-list: */
+		struct mutex_waiter *waiter =
+				list_entry(lock->wait_list.next,
+					   struct mutex_waiter, list);
+
+		debug_mutex_wake_waiter(lock, waiter);
+
+		wake_up_process(waiter->task);
+	}
+
+	spin_unlock_mutex(&lock->wait_lock, flags);
+}
+
+/*
+ * Release the lock, slowpath:
+ */
+static __used noinline void
+__mutex_unlock_slowpath(atomic_t *lock_count)
+{
+	__mutex_unlock_common_slowpath(lock_count, 1);
+}
+
+#ifndef CONFIG_DEBUG_LOCK_ALLOC
+/*
+ * Here come the less common (and hence less performance-critical) APIs:
+ * mutex_lock_interruptible() and mutex_trylock().
+ */
+static noinline int __sched
+__mutex_lock_killable_slowpath(struct mutex *lock);
+
+static noinline int __sched
+__mutex_lock_interruptible_slowpath(struct mutex *lock);
+
+/**
+ * mutex_lock_interruptible - acquire the mutex, interruptible
+ * @lock: the mutex to be acquired
+ *
+ * Lock the mutex like mutex_lock(), and return 0 if the mutex has
+ * been acquired or sleep until the mutex becomes available. If a
+ * signal arrives while waiting for the lock then this function
+ * returns -EINTR.
+ *
+ * This function is similar to (but not equivalent to) down_interruptible().
+ */
+int __sched mutex_lock_interruptible(struct mutex *lock)
+{
+	int ret;
+
+	might_sleep();
+	ret =  __mutex_fastpath_lock_retval(&lock->count);
+	if (likely(!ret)) {
+		mutex_set_owner(lock);
+		return 0;
+	} else
+		return __mutex_lock_interruptible_slowpath(lock);
+}
+
+EXPORT_SYMBOL(mutex_lock_interruptible);
+
+int __sched mutex_lock_killable(struct mutex *lock)
+{
+	int ret;
+
+	might_sleep();
+	ret = __mutex_fastpath_lock_retval(&lock->count);
+	if (likely(!ret)) {
+		mutex_set_owner(lock);
+		return 0;
+	} else
+		return __mutex_lock_killable_slowpath(lock);
+}
+EXPORT_SYMBOL(mutex_lock_killable);
+
+static __used noinline void __sched
+__mutex_lock_slowpath(atomic_t *lock_count)
+{
+	struct mutex *lock = container_of(lock_count, struct mutex, count);
+
+	__mutex_lock_common(lock, TASK_UNINTERRUPTIBLE, 0,
+			    NULL, _RET_IP_, NULL, 0);
+}
+
+static noinline int __sched
+__mutex_lock_killable_slowpath(struct mutex *lock)
+{
+	return __mutex_lock_common(lock, TASK_KILLABLE, 0,
+				   NULL, _RET_IP_, NULL, 0);
+}
+
+static noinline int __sched
+__mutex_lock_interruptible_slowpath(struct mutex *lock)
+{
+	return __mutex_lock_common(lock, TASK_INTERRUPTIBLE, 0,
+				   NULL, _RET_IP_, NULL, 0);
+}
+
+static noinline int __sched
+__ww_mutex_lock_slowpath(struct ww_mutex *lock, struct ww_acquire_ctx *ctx)
+{
+	return __mutex_lock_common(&lock->base, TASK_UNINTERRUPTIBLE, 0,
+				   NULL, _RET_IP_, ctx, 1);
+}
+
+static noinline int __sched
+__ww_mutex_lock_interruptible_slowpath(struct ww_mutex *lock,
+					    struct ww_acquire_ctx *ctx)
+{
+	return __mutex_lock_common(&lock->base, TASK_INTERRUPTIBLE, 0,
+				   NULL, _RET_IP_, ctx, 1);
+}
+
+#endif
+
+/*
+ * Spinlock based trylock, we take the spinlock and check whether we
+ * can get the lock:
+ */
+static inline int __mutex_trylock_slowpath(atomic_t *lock_count)
+{
+	struct mutex *lock = container_of(lock_count, struct mutex, count);
+	unsigned long flags;
+	int prev;
+
+	spin_lock_mutex(&lock->wait_lock, flags);
+
+	prev = atomic_xchg(&lock->count, -1);
+	if (likely(prev == 1)) {
+		mutex_set_owner(lock);
+		mutex_acquire(&lock->dep_map, 0, 1, _RET_IP_);
+	}
+
+	/* Set it back to 0 if there are no waiters: */
+	if (likely(list_empty(&lock->wait_list)))
+		atomic_set(&lock->count, 0);
+
+	spin_unlock_mutex(&lock->wait_lock, flags);
+
+	return prev == 1;
+}
+
+/**
+ * mutex_trylock - try to acquire the mutex, without waiting
+ * @lock: the mutex to be acquired
+ *
+ * Try to acquire the mutex atomically. Returns 1 if the mutex
+ * has been acquired successfully, and 0 on contention.
+ *
+ * NOTE: this function follows the spin_trylock() convention, so
+ * it is negated from the down_trylock() return values! Be careful
+ * about this when converting semaphore users to mutexes.
+ *
+ * This function must not be used in interrupt context. The
+ * mutex must be released by the same task that acquired it.
+ */
+int __sched mutex_trylock(struct mutex *lock)
+{
+	int ret;
+
+	ret = __mutex_fastpath_trylock(&lock->count, __mutex_trylock_slowpath);
+	if (ret)
+		mutex_set_owner(lock);
+
+	return ret;
+}
+EXPORT_SYMBOL(mutex_trylock);
+
+#ifndef CONFIG_DEBUG_LOCK_ALLOC
+int __sched
+__ww_mutex_lock(struct ww_mutex *lock, struct ww_acquire_ctx *ctx)
+{
+	int ret;
+
+	might_sleep();
+
+	ret = __mutex_fastpath_lock_retval(&lock->base.count);
+
+	if (likely(!ret)) {
+		ww_mutex_set_context_fastpath(lock, ctx);
+		mutex_set_owner(&lock->base);
+	} else
+		ret = __ww_mutex_lock_slowpath(lock, ctx);
+	return ret;
+}
+EXPORT_SYMBOL(__ww_mutex_lock);
+
+int __sched
+__ww_mutex_lock_interruptible(struct ww_mutex *lock, struct ww_acquire_ctx *ctx)
+{
+	int ret;
+
+	might_sleep();
+
+	ret = __mutex_fastpath_lock_retval(&lock->base.count);
+
+	if (likely(!ret)) {
+		ww_mutex_set_context_fastpath(lock, ctx);
+		mutex_set_owner(&lock->base);
+	} else
+		ret = __ww_mutex_lock_interruptible_slowpath(lock, ctx);
+	return ret;
+}
+EXPORT_SYMBOL(__ww_mutex_lock_interruptible);
+
+#endif
+
+/**
+ * atomic_dec_and_mutex_lock - return holding mutex if we dec to 0
+ * @cnt: the atomic which we are to dec
+ * @lock: the mutex to return holding if we dec to 0
+ *
+ * return true and hold lock if we dec to 0, return false otherwise
+ */
+int atomic_dec_and_mutex_lock(atomic_t *cnt, struct mutex *lock)
+{
+	/* dec if we can't possibly hit 0 */
+	if (atomic_add_unless(cnt, -1, 1))
+		return 0;
+	/* we might hit 0, so take the lock */
+	mutex_lock(lock);
+	if (!atomic_dec_and_test(cnt)) {
+		/* when we actually did the dec, we didn't hit 0 */
+		mutex_unlock(lock);
+		return 0;
+	}
+	/* we hit 0, and we hold the lock */
+	return 1;
+}
+EXPORT_SYMBOL(atomic_dec_and_mutex_lock);
diff --git a/kernel/locking/mutex.h b/kernel/locking/mutex.h
new file mode 100644
index 000000000000..4115fbf83b12
--- /dev/null
+++ b/kernel/locking/mutex.h
@@ -0,0 +1,48 @@
+/*
+ * Mutexes: blocking mutual exclusion locks
+ *
+ * started by Ingo Molnar:
+ *
+ *  Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
+ *
+ * This file contains mutex debugging related internal prototypes, for the
+ * !CONFIG_DEBUG_MUTEXES case. Most of them are NOPs:
+ */
+
+#define spin_lock_mutex(lock, flags) \
+		do { spin_lock(lock); (void)(flags); } while (0)
+#define spin_unlock_mutex(lock, flags) \
+		do { spin_unlock(lock); (void)(flags); } while (0)
+#define mutex_remove_waiter(lock, waiter, ti) \
+		__list_del((waiter)->list.prev, (waiter)->list.next)
+
+#ifdef CONFIG_SMP
+static inline void mutex_set_owner(struct mutex *lock)
+{
+	lock->owner = current;
+}
+
+static inline void mutex_clear_owner(struct mutex *lock)
+{
+	lock->owner = NULL;
+}
+#else
+static inline void mutex_set_owner(struct mutex *lock)
+{
+}
+
+static inline void mutex_clear_owner(struct mutex *lock)
+{
+}
+#endif
+
+#define debug_mutex_wake_waiter(lock, waiter)		do { } while (0)
+#define debug_mutex_free_waiter(waiter)			do { } while (0)
+#define debug_mutex_add_waiter(lock, waiter, ti)	do { } while (0)
+#define debug_mutex_unlock(lock)			do { } while (0)
+#define debug_mutex_init(lock, name, key)		do { } while (0)
+
+static inline void
+debug_mutex_lock_common(struct mutex *lock, struct mutex_waiter *waiter)
+{
+}
diff --git a/kernel/mutex-debug.c b/kernel/mutex-debug.c
deleted file mode 100644
index 7e3443fe1f48..000000000000
--- a/kernel/mutex-debug.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * kernel/mutex-debug.c
- *
- * Debugging code for mutexes
- *
- * Started by Ingo Molnar:
- *
- *  Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
- *
- * lock debugging, locking tree, deadlock detection started by:
- *
- *  Copyright (C) 2004, LynuxWorks, Inc., Igor Manyilov, Bill Huey
- *  Released under the General Public License (GPL).
- */
-#include <linux/mutex.h>
-#include <linux/delay.h>
-#include <linux/export.h>
-#include <linux/poison.h>
-#include <linux/sched.h>
-#include <linux/spinlock.h>
-#include <linux/kallsyms.h>
-#include <linux/interrupt.h>
-#include <linux/debug_locks.h>
-
-#include "mutex-debug.h"
-
-/*
- * Must be called with lock->wait_lock held.
- */
-void debug_mutex_lock_common(struct mutex *lock, struct mutex_waiter *waiter)
-{
-	memset(waiter, MUTEX_DEBUG_INIT, sizeof(*waiter));
-	waiter->magic = waiter;
-	INIT_LIST_HEAD(&waiter->list);
-}
-
-void debug_mutex_wake_waiter(struct mutex *lock, struct mutex_waiter *waiter)
-{
-	SMP_DEBUG_LOCKS_WARN_ON(!spin_is_locked(&lock->wait_lock));
-	DEBUG_LOCKS_WARN_ON(list_empty(&lock->wait_list));
-	DEBUG_LOCKS_WARN_ON(waiter->magic != waiter);
-	DEBUG_LOCKS_WARN_ON(list_empty(&waiter->list));
-}
-
-void debug_mutex_free_waiter(struct mutex_waiter *waiter)
-{
-	DEBUG_LOCKS_WARN_ON(!list_empty(&waiter->list));
-	memset(waiter, MUTEX_DEBUG_FREE, sizeof(*waiter));
-}
-
-void debug_mutex_add_waiter(struct mutex *lock, struct mutex_waiter *waiter,
-			    struct thread_info *ti)
-{
-	SMP_DEBUG_LOCKS_WARN_ON(!spin_is_locked(&lock->wait_lock));
-
-	/* Mark the current thread as blocked on the lock: */
-	ti->task->blocked_on = waiter;
-}
-
-void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
-			 struct thread_info *ti)
-{
-	DEBUG_LOCKS_WARN_ON(list_empty(&waiter->list));
-	DEBUG_LOCKS_WARN_ON(waiter->task != ti->task);
-	DEBUG_LOCKS_WARN_ON(ti->task->blocked_on != waiter);
-	ti->task->blocked_on = NULL;
-
-	list_del_init(&waiter->list);
-	waiter->task = NULL;
-}
-
-void debug_mutex_unlock(struct mutex *lock)
-{
-	if (unlikely(!debug_locks))
-		return;
-
-	DEBUG_LOCKS_WARN_ON(lock->magic != lock);
-	DEBUG_LOCKS_WARN_ON(lock->owner != current);
-	DEBUG_LOCKS_WARN_ON(!lock->wait_list.prev && !lock->wait_list.next);
-	mutex_clear_owner(lock);
-}
-
-void debug_mutex_init(struct mutex *lock, const char *name,
-		      struct lock_class_key *key)
-{
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-	/*
-	 * Make sure we are not reinitializing a held lock:
-	 */
-	debug_check_no_locks_freed((void *)lock, sizeof(*lock));
-	lockdep_init_map(&lock->dep_map, name, key, 0);
-#endif
-	lock->magic = lock;
-}
-
-/***
- * mutex_destroy - mark a mutex unusable
- * @lock: the mutex to be destroyed
- *
- * This function marks the mutex uninitialized, and any subsequent
- * use of the mutex is forbidden. The mutex must not be locked when
- * this function is called.
- */
-void mutex_destroy(struct mutex *lock)
-{
-	DEBUG_LOCKS_WARN_ON(mutex_is_locked(lock));
-	lock->magic = NULL;
-}
-
-EXPORT_SYMBOL_GPL(mutex_destroy);
diff --git a/kernel/mutex-debug.h b/kernel/mutex-debug.h
deleted file mode 100644
index 0799fd3e4cfa..000000000000
--- a/kernel/mutex-debug.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Mutexes: blocking mutual exclusion locks
- *
- * started by Ingo Molnar:
- *
- *  Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
- *
- * This file contains mutex debugging related internal declarations,
- * prototypes and inline functions, for the CONFIG_DEBUG_MUTEXES case.
- * More details are in kernel/mutex-debug.c.
- */
-
-/*
- * This must be called with lock->wait_lock held.
- */
-extern void debug_mutex_lock_common(struct mutex *lock,
-				    struct mutex_waiter *waiter);
-extern void debug_mutex_wake_waiter(struct mutex *lock,
-				    struct mutex_waiter *waiter);
-extern void debug_mutex_free_waiter(struct mutex_waiter *waiter);
-extern void debug_mutex_add_waiter(struct mutex *lock,
-				   struct mutex_waiter *waiter,
-				   struct thread_info *ti);
-extern void mutex_remove_waiter(struct mutex *lock, struct mutex_waiter *waiter,
-				struct thread_info *ti);
-extern void debug_mutex_unlock(struct mutex *lock);
-extern void debug_mutex_init(struct mutex *lock, const char *name,
-			     struct lock_class_key *key);
-
-static inline void mutex_set_owner(struct mutex *lock)
-{
-	lock->owner = current;
-}
-
-static inline void mutex_clear_owner(struct mutex *lock)
-{
-	lock->owner = NULL;
-}
-
-#define spin_lock_mutex(lock, flags)			\
-	do {						\
-		struct mutex *l = container_of(lock, struct mutex, wait_lock); \
-							\
-		DEBUG_LOCKS_WARN_ON(in_interrupt());	\
-		local_irq_save(flags);			\
-		arch_spin_lock(&(lock)->rlock.raw_lock);\
-		DEBUG_LOCKS_WARN_ON(l->magic != l);	\
-	} while (0)
-
-#define spin_unlock_mutex(lock, flags)				\
-	do {							\
-		arch_spin_unlock(&(lock)->rlock.raw_lock);	\
-		local_irq_restore(flags);			\
-		preempt_check_resched();			\
-	} while (0)
diff --git a/kernel/mutex.c b/kernel/mutex.c
deleted file mode 100644
index d24105b1b794..000000000000
--- a/kernel/mutex.c
+++ /dev/null
@@ -1,960 +0,0 @@
-/*
- * kernel/mutex.c
- *
- * Mutexes: blocking mutual exclusion locks
- *
- * Started by Ingo Molnar:
- *
- *  Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
- *
- * Many thanks to Arjan van de Ven, Thomas Gleixner, Steven Rostedt and
- * David Howells for suggestions and improvements.
- *
- *  - Adaptive spinning for mutexes by Peter Zijlstra. (Ported to mainline
- *    from the -rt tree, where it was originally implemented for rtmutexes
- *    by Steven Rostedt, based on work by Gregory Haskins, Peter Morreale
- *    and Sven Dietrich.
- *
- * Also see Documentation/mutex-design.txt.
- */
-#include <linux/mutex.h>
-#include <linux/ww_mutex.h>
-#include <linux/sched.h>
-#include <linux/sched/rt.h>
-#include <linux/export.h>
-#include <linux/spinlock.h>
-#include <linux/interrupt.h>
-#include <linux/debug_locks.h>
-
-/*
- * In the DEBUG case we are using the "NULL fastpath" for mutexes,
- * which forces all calls into the slowpath:
- */
-#ifdef CONFIG_DEBUG_MUTEXES
-# include "mutex-debug.h"
-# include <asm-generic/mutex-null.h>
-#else
-# include "mutex.h"
-# include <asm/mutex.h>
-#endif
-
-/*
- * A negative mutex count indicates that waiters are sleeping waiting for the
- * mutex.
- */
-#define	MUTEX_SHOW_NO_WAITER(mutex)	(atomic_read(&(mutex)->count) >= 0)
-
-void
-__mutex_init(struct mutex *lock, const char *name, struct lock_class_key *key)
-{
-	atomic_set(&lock->count, 1);
-	spin_lock_init(&lock->wait_lock);
-	INIT_LIST_HEAD(&lock->wait_list);
-	mutex_clear_owner(lock);
-#ifdef CONFIG_MUTEX_SPIN_ON_OWNER
-	lock->spin_mlock = NULL;
-#endif
-
-	debug_mutex_init(lock, name, key);
-}
-
-EXPORT_SYMBOL(__mutex_init);
-
-#ifndef CONFIG_DEBUG_LOCK_ALLOC
-/*
- * We split the mutex lock/unlock logic into separate fastpath and
- * slowpath functions, to reduce the register pressure on the fastpath.
- * We also put the fastpath first in the kernel image, to make sure the
- * branch is predicted by the CPU as default-untaken.
- */
-static __used noinline void __sched
-__mutex_lock_slowpath(atomic_t *lock_count);
-
-/**
- * mutex_lock - acquire the mutex
- * @lock: the mutex to be acquired
- *
- * Lock the mutex exclusively for this task. If the mutex is not
- * available right now, it will sleep until it can get it.
- *
- * The mutex must later on be released by the same task that
- * acquired it. Recursive locking is not allowed. The task
- * may not exit without first unlocking the mutex. Also, kernel
- * memory where the mutex resides mutex must not be freed with
- * the mutex still locked. The mutex must first be initialized
- * (or statically defined) before it can be locked. memset()-ing
- * the mutex to 0 is not allowed.
- *
- * ( The CONFIG_DEBUG_MUTEXES .config option turns on debugging
- *   checks that will enforce the restrictions and will also do
- *   deadlock debugging. )
- *
- * This function is similar to (but not equivalent to) down().
- */
-void __sched mutex_lock(struct mutex *lock)
-{
-	might_sleep();
-	/*
-	 * The locking fastpath is the 1->0 transition from
-	 * 'unlocked' into 'locked' state.
-	 */
-	__mutex_fastpath_lock(&lock->count, __mutex_lock_slowpath);
-	mutex_set_owner(lock);
-}
-
-EXPORT_SYMBOL(mutex_lock);
-#endif
-
-#ifdef CONFIG_MUTEX_SPIN_ON_OWNER
-/*
- * In order to avoid a stampede of mutex spinners from acquiring the mutex
- * more or less simultaneously, the spinners need to acquire a MCS lock
- * first before spinning on the owner field.
- *
- * We don't inline mspin_lock() so that perf can correctly account for the
- * time spent in this lock function.
- */
-struct mspin_node {
-	struct mspin_node *next ;
-	int		  locked;	/* 1 if lock acquired */
-};
-#define	MLOCK(mutex)	((struct mspin_node **)&((mutex)->spin_mlock))
-
-static noinline
-void mspin_lock(struct mspin_node **lock, struct mspin_node *node)
-{
-	struct mspin_node *prev;
-
-	/* Init node */
-	node->locked = 0;
-	node->next   = NULL;
-
-	prev = xchg(lock, node);
-	if (likely(prev == NULL)) {
-		/* Lock acquired */
-		node->locked = 1;
-		return;
-	}
-	ACCESS_ONCE(prev->next) = node;
-	smp_wmb();
-	/* Wait until the lock holder passes the lock down */
-	while (!ACCESS_ONCE(node->locked))
-		arch_mutex_cpu_relax();
-}
-
-static void mspin_unlock(struct mspin_node **lock, struct mspin_node *node)
-{
-	struct mspin_node *next = ACCESS_ONCE(node->next);
-
-	if (likely(!next)) {
-		/*
-		 * Release the lock by setting it to NULL
-		 */
-		if (cmpxchg(lock, node, NULL) == node)
-			return;
-		/* Wait until the next pointer is set */
-		while (!(next = ACCESS_ONCE(node->next)))
-			arch_mutex_cpu_relax();
-	}
-	ACCESS_ONCE(next->locked) = 1;
-	smp_wmb();
-}
-
-/*
- * Mutex spinning code migrated from kernel/sched/core.c
- */
-
-static inline bool owner_running(struct mutex *lock, struct task_struct *owner)
-{
-	if (lock->owner != owner)
-		return false;
-
-	/*
-	 * Ensure we emit the owner->on_cpu, dereference _after_ checking
-	 * lock->owner still matches owner, if that fails, owner might
-	 * point to free()d memory, if it still matches, the rcu_read_lock()
-	 * ensures the memory stays valid.
-	 */
-	barrier();
-
-	return owner->on_cpu;
-}
-
-/*
- * Look out! "owner" is an entirely speculative pointer
- * access and not reliable.
- */
-static noinline
-int mutex_spin_on_owner(struct mutex *lock, struct task_struct *owner)
-{
-	rcu_read_lock();
-	while (owner_running(lock, owner)) {
-		if (need_resched())
-			break;
-
-		arch_mutex_cpu_relax();
-	}
-	rcu_read_unlock();
-
-	/*
-	 * We break out the loop above on need_resched() and when the
-	 * owner changed, which is a sign for heavy contention. Return
-	 * success only when lock->owner is NULL.
-	 */
-	return lock->owner == NULL;
-}
-
-/*
- * Initial check for entering the mutex spinning loop
- */
-static inline int mutex_can_spin_on_owner(struct mutex *lock)
-{
-	struct task_struct *owner;
-	int retval = 1;
-
-	rcu_read_lock();
-	owner = ACCESS_ONCE(lock->owner);
-	if (owner)
-		retval = owner->on_cpu;
-	rcu_read_unlock();
-	/*
-	 * if lock->owner is not set, the mutex owner may have just acquired
-	 * it and not set the owner yet or the mutex has been released.
-	 */
-	return retval;
-}
-#endif
-
-static __used noinline void __sched __mutex_unlock_slowpath(atomic_t *lock_count);
-
-/**
- * mutex_unlock - release the mutex
- * @lock: the mutex to be released
- *
- * Unlock a mutex that has been locked by this task previously.
- *
- * This function must not be used in interrupt context. Unlocking
- * of a not locked mutex is not allowed.
- *
- * This function is similar to (but not equivalent to) up().
- */
-void __sched mutex_unlock(struct mutex *lock)
-{
-	/*
-	 * The unlocking fastpath is the 0->1 transition from 'locked'
-	 * into 'unlocked' state:
-	 */
-#ifndef CONFIG_DEBUG_MUTEXES
-	/*
-	 * When debugging is enabled we must not clear the owner before time,
-	 * the slow path will always be taken, and that clears the owner field
-	 * after verifying that it was indeed current.
-	 */
-	mutex_clear_owner(lock);
-#endif
-	__mutex_fastpath_unlock(&lock->count, __mutex_unlock_slowpath);
-}
-
-EXPORT_SYMBOL(mutex_unlock);
-
-/**
- * ww_mutex_unlock - release the w/w mutex
- * @lock: the mutex to be released
- *
- * Unlock a mutex that has been locked by this task previously with any of the
- * ww_mutex_lock* functions (with or without an acquire context). It is
- * forbidden to release the locks after releasing the acquire context.
- *
- * This function must not be used in interrupt context. Unlocking
- * of a unlocked mutex is not allowed.
- */
-void __sched ww_mutex_unlock(struct ww_mutex *lock)
-{
-	/*
-	 * The unlocking fastpath is the 0->1 transition from 'locked'
-	 * into 'unlocked' state:
-	 */
-	if (lock->ctx) {
-#ifdef CONFIG_DEBUG_MUTEXES
-		DEBUG_LOCKS_WARN_ON(!lock->ctx->acquired);
-#endif
-		if (lock->ctx->acquired > 0)
-			lock->ctx->acquired--;
-		lock->ctx = NULL;
-	}
-
-#ifndef CONFIG_DEBUG_MUTEXES
-	/*
-	 * When debugging is enabled we must not clear the owner before time,
-	 * the slow path will always be taken, and that clears the owner field
-	 * after verifying that it was indeed current.
-	 */
-	mutex_clear_owner(&lock->base);
-#endif
-	__mutex_fastpath_unlock(&lock->base.count, __mutex_unlock_slowpath);
-}
-EXPORT_SYMBOL(ww_mutex_unlock);
-
-static inline int __sched
-__mutex_lock_check_stamp(struct mutex *lock, struct ww_acquire_ctx *ctx)
-{
-	struct ww_mutex *ww = container_of(lock, struct ww_mutex, base);
-	struct ww_acquire_ctx *hold_ctx = ACCESS_ONCE(ww->ctx);
-
-	if (!hold_ctx)
-		return 0;
-
-	if (unlikely(ctx == hold_ctx))
-		return -EALREADY;
-
-	if (ctx->stamp - hold_ctx->stamp <= LONG_MAX &&
-	    (ctx->stamp != hold_ctx->stamp || ctx > hold_ctx)) {
-#ifdef CONFIG_DEBUG_MUTEXES
-		DEBUG_LOCKS_WARN_ON(ctx->contending_lock);
-		ctx->contending_lock = ww;
-#endif
-		return -EDEADLK;
-	}
-
-	return 0;
-}
-
-static __always_inline void ww_mutex_lock_acquired(struct ww_mutex *ww,
-						   struct ww_acquire_ctx *ww_ctx)
-{
-#ifdef CONFIG_DEBUG_MUTEXES
-	/*
-	 * If this WARN_ON triggers, you used ww_mutex_lock to acquire,
-	 * but released with a normal mutex_unlock in this call.
-	 *
-	 * This should never happen, always use ww_mutex_unlock.
-	 */
-	DEBUG_LOCKS_WARN_ON(ww->ctx);
-
-	/*
-	 * Not quite done after calling ww_acquire_done() ?
-	 */
-	DEBUG_LOCKS_WARN_ON(ww_ctx->done_acquire);
-
-	if (ww_ctx->contending_lock) {
-		/*
-		 * After -EDEADLK you tried to
-		 * acquire a different ww_mutex? Bad!
-		 */
-		DEBUG_LOCKS_WARN_ON(ww_ctx->contending_lock != ww);
-
-		/*
-		 * You called ww_mutex_lock after receiving -EDEADLK,
-		 * but 'forgot' to unlock everything else first?
-		 */
-		DEBUG_LOCKS_WARN_ON(ww_ctx->acquired > 0);
-		ww_ctx->contending_lock = NULL;
-	}
-
-	/*
-	 * Naughty, using a different class will lead to undefined behavior!
-	 */
-	DEBUG_LOCKS_WARN_ON(ww_ctx->ww_class != ww->ww_class);
-#endif
-	ww_ctx->acquired++;
-}
-
-/*
- * after acquiring lock with fastpath or when we lost out in contested
- * slowpath, set ctx and wake up any waiters so they can recheck.
- *
- * This function is never called when CONFIG_DEBUG_LOCK_ALLOC is set,
- * as the fastpath and opportunistic spinning are disabled in that case.
- */
-static __always_inline void
-ww_mutex_set_context_fastpath(struct ww_mutex *lock,
-			       struct ww_acquire_ctx *ctx)
-{
-	unsigned long flags;
-	struct mutex_waiter *cur;
-
-	ww_mutex_lock_acquired(lock, ctx);
-
-	lock->ctx = ctx;
-
-	/*
-	 * The lock->ctx update should be visible on all cores before
-	 * the atomic read is done, otherwise contended waiters might be
-	 * missed. The contended waiters will either see ww_ctx == NULL
-	 * and keep spinning, or it will acquire wait_lock, add itself
-	 * to waiter list and sleep.
-	 */
-	smp_mb(); /* ^^^ */
-
-	/*
-	 * Check if lock is contended, if not there is nobody to wake up
-	 */
-	if (likely(atomic_read(&lock->base.count) == 0))
-		return;
-
-	/*
-	 * Uh oh, we raced in fastpath, wake up everyone in this case,
-	 * so they can see the new lock->ctx.
-	 */
-	spin_lock_mutex(&lock->base.wait_lock, flags);
-	list_for_each_entry(cur, &lock->base.wait_list, list) {
-		debug_mutex_wake_waiter(&lock->base, cur);
-		wake_up_process(cur->task);
-	}
-	spin_unlock_mutex(&lock->base.wait_lock, flags);
-}
-
-/*
- * Lock a mutex (possibly interruptible), slowpath:
- */
-static __always_inline int __sched
-__mutex_lock_common(struct mutex *lock, long state, unsigned int subclass,
-		    struct lockdep_map *nest_lock, unsigned long ip,
-		    struct ww_acquire_ctx *ww_ctx, const bool use_ww_ctx)
-{
-	struct task_struct *task = current;
-	struct mutex_waiter waiter;
-	unsigned long flags;
-	int ret;
-
-	preempt_disable();
-	mutex_acquire_nest(&lock->dep_map, subclass, 0, nest_lock, ip);
-
-#ifdef CONFIG_MUTEX_SPIN_ON_OWNER
-	/*
-	 * Optimistic spinning.
-	 *
-	 * We try to spin for acquisition when we find that there are no
-	 * pending waiters and the lock owner is currently running on a
-	 * (different) CPU.
-	 *
-	 * The rationale is that if the lock owner is running, it is likely to
-	 * release the lock soon.
-	 *
-	 * Since this needs the lock owner, and this mutex implementation
-	 * doesn't track the owner atomically in the lock field, we need to
-	 * track it non-atomically.
-	 *
-	 * We can't do this for DEBUG_MUTEXES because that relies on wait_lock
-	 * to serialize everything.
-	 *
-	 * The mutex spinners are queued up using MCS lock so that only one
-	 * spinner can compete for the mutex. However, if mutex spinning isn't
-	 * going to happen, there is no point in going through the lock/unlock
-	 * overhead.
-	 */
-	if (!mutex_can_spin_on_owner(lock))
-		goto slowpath;
-
-	for (;;) {
-		struct task_struct *owner;
-		struct mspin_node  node;
-
-		if (use_ww_ctx && ww_ctx->acquired > 0) {
-			struct ww_mutex *ww;
-
-			ww = container_of(lock, struct ww_mutex, base);
-			/*
-			 * If ww->ctx is set the contents are undefined, only
-			 * by acquiring wait_lock there is a guarantee that
-			 * they are not invalid when reading.
-			 *
-			 * As such, when deadlock detection needs to be
-			 * performed the optimistic spinning cannot be done.
-			 */
-			if (ACCESS_ONCE(ww->ctx))
-				goto slowpath;
-		}
-
-		/*
-		 * If there's an owner, wait for it to either
-		 * release the lock or go to sleep.
-		 */
-		mspin_lock(MLOCK(lock), &node);
-		owner = ACCESS_ONCE(lock->owner);
-		if (owner && !mutex_spin_on_owner(lock, owner)) {
-			mspin_unlock(MLOCK(lock), &node);
-			goto slowpath;
-		}
-
-		if ((atomic_read(&lock->count) == 1) &&
-		    (atomic_cmpxchg(&lock->count, 1, 0) == 1)) {
-			lock_acquired(&lock->dep_map, ip);
-			if (use_ww_ctx) {
-				struct ww_mutex *ww;
-				ww = container_of(lock, struct ww_mutex, base);
-
-				ww_mutex_set_context_fastpath(ww, ww_ctx);
-			}
-
-			mutex_set_owner(lock);
-			mspin_unlock(MLOCK(lock), &node);
-			preempt_enable();
-			return 0;
-		}
-		mspin_unlock(MLOCK(lock), &node);
-
-		/*
-		 * When there's no owner, we might have preempted between the
-		 * owner acquiring the lock and setting the owner field. If
-		 * we're an RT task that will live-lock because we won't let
-		 * the owner complete.
-		 */
-		if (!owner && (need_resched() || rt_task(task)))
-			goto slowpath;
-
-		/*
-		 * The cpu_relax() call is a compiler barrier which forces
-		 * everything in this loop to be re-loaded. We don't need
-		 * memory barriers as we'll eventually observe the right
-		 * values at the cost of a few extra spins.
-		 */
-		arch_mutex_cpu_relax();
-	}
-slowpath:
-#endif
-	spin_lock_mutex(&lock->wait_lock, flags);
-
-	/* once more, can we acquire the lock? */
-	if (MUTEX_SHOW_NO_WAITER(lock) && (atomic_xchg(&lock->count, 0) == 1))
-		goto skip_wait;
-
-	debug_mutex_lock_common(lock, &waiter);
-	debug_mutex_add_waiter(lock, &waiter, task_thread_info(task));
-
-	/* add waiting tasks to the end of the waitqueue (FIFO): */
-	list_add_tail(&waiter.list, &lock->wait_list);
-	waiter.task = task;
-
-	lock_contended(&lock->dep_map, ip);
-
-	for (;;) {
-		/*
-		 * Lets try to take the lock again - this is needed even if
-		 * we get here for the first time (shortly after failing to
-		 * acquire the lock), to make sure that we get a wakeup once
-		 * it's unlocked. Later on, if we sleep, this is the
-		 * operation that gives us the lock. We xchg it to -1, so
-		 * that when we release the lock, we properly wake up the
-		 * other waiters:
-		 */
-		if (MUTEX_SHOW_NO_WAITER(lock) &&
-		    (atomic_xchg(&lock->count, -1) == 1))
-			break;
-
-		/*
-		 * got a signal? (This code gets eliminated in the
-		 * TASK_UNINTERRUPTIBLE case.)
-		 */
-		if (unlikely(signal_pending_state(state, task))) {
-			ret = -EINTR;
-			goto err;
-		}
-
-		if (use_ww_ctx && ww_ctx->acquired > 0) {
-			ret = __mutex_lock_check_stamp(lock, ww_ctx);
-			if (ret)
-				goto err;
-		}
-
-		__set_task_state(task, state);
-
-		/* didn't get the lock, go to sleep: */
-		spin_unlock_mutex(&lock->wait_lock, flags);
-		schedule_preempt_disabled();
-		spin_lock_mutex(&lock->wait_lock, flags);
-	}
-	mutex_remove_waiter(lock, &waiter, current_thread_info());
-	/* set it to 0 if there are no waiters left: */
-	if (likely(list_empty(&lock->wait_list)))
-		atomic_set(&lock->count, 0);
-	debug_mutex_free_waiter(&waiter);
-
-skip_wait:
-	/* got the lock - cleanup and rejoice! */
-	lock_acquired(&lock->dep_map, ip);
-	mutex_set_owner(lock);
-
-	if (use_ww_ctx) {
-		struct ww_mutex *ww = container_of(lock, struct ww_mutex, base);
-		struct mutex_waiter *cur;
-
-		/*
-		 * This branch gets optimized out for the common case,
-		 * and is only important for ww_mutex_lock.
-		 */
-		ww_mutex_lock_acquired(ww, ww_ctx);
-		ww->ctx = ww_ctx;
-
-		/*
-		 * Give any possible sleeping processes the chance to wake up,
-		 * so they can recheck if they have to back off.
-		 */
-		list_for_each_entry(cur, &lock->wait_list, list) {
-			debug_mutex_wake_waiter(lock, cur);
-			wake_up_process(cur->task);
-		}
-	}
-
-	spin_unlock_mutex(&lock->wait_lock, flags);
-	preempt_enable();
-	return 0;
-
-err:
-	mutex_remove_waiter(lock, &waiter, task_thread_info(task));
-	spin_unlock_mutex(&lock->wait_lock, flags);
-	debug_mutex_free_waiter(&waiter);
-	mutex_release(&lock->dep_map, 1, ip);
-	preempt_enable();
-	return ret;
-}
-
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-void __sched
-mutex_lock_nested(struct mutex *lock, unsigned int subclass)
-{
-	might_sleep();
-	__mutex_lock_common(lock, TASK_UNINTERRUPTIBLE,
-			    subclass, NULL, _RET_IP_, NULL, 0);
-}
-
-EXPORT_SYMBOL_GPL(mutex_lock_nested);
-
-void __sched
-_mutex_lock_nest_lock(struct mutex *lock, struct lockdep_map *nest)
-{
-	might_sleep();
-	__mutex_lock_common(lock, TASK_UNINTERRUPTIBLE,
-			    0, nest, _RET_IP_, NULL, 0);
-}
-
-EXPORT_SYMBOL_GPL(_mutex_lock_nest_lock);
-
-int __sched
-mutex_lock_killable_nested(struct mutex *lock, unsigned int subclass)
-{
-	might_sleep();
-	return __mutex_lock_common(lock, TASK_KILLABLE,
-				   subclass, NULL, _RET_IP_, NULL, 0);
-}
-EXPORT_SYMBOL_GPL(mutex_lock_killable_nested);
-
-int __sched
-mutex_lock_interruptible_nested(struct mutex *lock, unsigned int subclass)
-{
-	might_sleep();
-	return __mutex_lock_common(lock, TASK_INTERRUPTIBLE,
-				   subclass, NULL, _RET_IP_, NULL, 0);
-}
-
-EXPORT_SYMBOL_GPL(mutex_lock_interruptible_nested);
-
-static inline int
-ww_mutex_deadlock_injection(struct ww_mutex *lock, struct ww_acquire_ctx *ctx)
-{
-#ifdef CONFIG_DEBUG_WW_MUTEX_SLOWPATH
-	unsigned tmp;
-
-	if (ctx->deadlock_inject_countdown-- == 0) {
-		tmp = ctx->deadlock_inject_interval;
-		if (tmp > UINT_MAX/4)
-			tmp = UINT_MAX;
-		else
-			tmp = tmp*2 + tmp + tmp/2;
-
-		ctx->deadlock_inject_interval = tmp;
-		ctx->deadlock_inject_countdown = tmp;
-		ctx->contending_lock = lock;
-
-		ww_mutex_unlock(lock);
-
-		return -EDEADLK;
-	}
-#endif
-
-	return 0;
-}
-
-int __sched
-__ww_mutex_lock(struct ww_mutex *lock, struct ww_acquire_ctx *ctx)
-{
-	int ret;
-
-	might_sleep();
-	ret =  __mutex_lock_common(&lock->base, TASK_UNINTERRUPTIBLE,
-				   0, &ctx->dep_map, _RET_IP_, ctx, 1);
-	if (!ret && ctx->acquired > 1)
-		return ww_mutex_deadlock_injection(lock, ctx);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(__ww_mutex_lock);
-
-int __sched
-__ww_mutex_lock_interruptible(struct ww_mutex *lock, struct ww_acquire_ctx *ctx)
-{
-	int ret;
-
-	might_sleep();
-	ret = __mutex_lock_common(&lock->base, TASK_INTERRUPTIBLE,
-				  0, &ctx->dep_map, _RET_IP_, ctx, 1);
-
-	if (!ret && ctx->acquired > 1)
-		return ww_mutex_deadlock_injection(lock, ctx);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(__ww_mutex_lock_interruptible);
-
-#endif
-
-/*
- * Release the lock, slowpath:
- */
-static inline void
-__mutex_unlock_common_slowpath(atomic_t *lock_count, int nested)
-{
-	struct mutex *lock = container_of(lock_count, struct mutex, count);
-	unsigned long flags;
-
-	spin_lock_mutex(&lock->wait_lock, flags);
-	mutex_release(&lock->dep_map, nested, _RET_IP_);
-	debug_mutex_unlock(lock);
-
-	/*
-	 * some architectures leave the lock unlocked in the fastpath failure
-	 * case, others need to leave it locked. In the later case we have to
-	 * unlock it here
-	 */
-	if (__mutex_slowpath_needs_to_unlock())
-		atomic_set(&lock->count, 1);
-
-	if (!list_empty(&lock->wait_list)) {
-		/* get the first entry from the wait-list: */
-		struct mutex_waiter *waiter =
-				list_entry(lock->wait_list.next,
-					   struct mutex_waiter, list);
-
-		debug_mutex_wake_waiter(lock, waiter);
-
-		wake_up_process(waiter->task);
-	}
-
-	spin_unlock_mutex(&lock->wait_lock, flags);
-}
-
-/*
- * Release the lock, slowpath:
- */
-static __used noinline void
-__mutex_unlock_slowpath(atomic_t *lock_count)
-{
-	__mutex_unlock_common_slowpath(lock_count, 1);
-}
-
-#ifndef CONFIG_DEBUG_LOCK_ALLOC
-/*
- * Here come the less common (and hence less performance-critical) APIs:
- * mutex_lock_interruptible() and mutex_trylock().
- */
-static noinline int __sched
-__mutex_lock_killable_slowpath(struct mutex *lock);
-
-static noinline int __sched
-__mutex_lock_interruptible_slowpath(struct mutex *lock);
-
-/**
- * mutex_lock_interruptible - acquire the mutex, interruptible
- * @lock: the mutex to be acquired
- *
- * Lock the mutex like mutex_lock(), and return 0 if the mutex has
- * been acquired or sleep until the mutex becomes available. If a
- * signal arrives while waiting for the lock then this function
- * returns -EINTR.
- *
- * This function is similar to (but not equivalent to) down_interruptible().
- */
-int __sched mutex_lock_interruptible(struct mutex *lock)
-{
-	int ret;
-
-	might_sleep();
-	ret =  __mutex_fastpath_lock_retval(&lock->count);
-	if (likely(!ret)) {
-		mutex_set_owner(lock);
-		return 0;
-	} else
-		return __mutex_lock_interruptible_slowpath(lock);
-}
-
-EXPORT_SYMBOL(mutex_lock_interruptible);
-
-int __sched mutex_lock_killable(struct mutex *lock)
-{
-	int ret;
-
-	might_sleep();
-	ret = __mutex_fastpath_lock_retval(&lock->count);
-	if (likely(!ret)) {
-		mutex_set_owner(lock);
-		return 0;
-	} else
-		return __mutex_lock_killable_slowpath(lock);
-}
-EXPORT_SYMBOL(mutex_lock_killable);
-
-static __used noinline void __sched
-__mutex_lock_slowpath(atomic_t *lock_count)
-{
-	struct mutex *lock = container_of(lock_count, struct mutex, count);
-
-	__mutex_lock_common(lock, TASK_UNINTERRUPTIBLE, 0,
-			    NULL, _RET_IP_, NULL, 0);
-}
-
-static noinline int __sched
-__mutex_lock_killable_slowpath(struct mutex *lock)
-{
-	return __mutex_lock_common(lock, TASK_KILLABLE, 0,
-				   NULL, _RET_IP_, NULL, 0);
-}
-
-static noinline int __sched
-__mutex_lock_interruptible_slowpath(struct mutex *lock)
-{
-	return __mutex_lock_common(lock, TASK_INTERRUPTIBLE, 0,
-				   NULL, _RET_IP_, NULL, 0);
-}
-
-static noinline int __sched
-__ww_mutex_lock_slowpath(struct ww_mutex *lock, struct ww_acquire_ctx *ctx)
-{
-	return __mutex_lock_common(&lock->base, TASK_UNINTERRUPTIBLE, 0,
-				   NULL, _RET_IP_, ctx, 1);
-}
-
-static noinline int __sched
-__ww_mutex_lock_interruptible_slowpath(struct ww_mutex *lock,
-					    struct ww_acquire_ctx *ctx)
-{
-	return __mutex_lock_common(&lock->base, TASK_INTERRUPTIBLE, 0,
-				   NULL, _RET_IP_, ctx, 1);
-}
-
-#endif
-
-/*
- * Spinlock based trylock, we take the spinlock and check whether we
- * can get the lock:
- */
-static inline int __mutex_trylock_slowpath(atomic_t *lock_count)
-{
-	struct mutex *lock = container_of(lock_count, struct mutex, count);
-	unsigned long flags;
-	int prev;
-
-	spin_lock_mutex(&lock->wait_lock, flags);
-
-	prev = atomic_xchg(&lock->count, -1);
-	if (likely(prev == 1)) {
-		mutex_set_owner(lock);
-		mutex_acquire(&lock->dep_map, 0, 1, _RET_IP_);
-	}
-
-	/* Set it back to 0 if there are no waiters: */
-	if (likely(list_empty(&lock->wait_list)))
-		atomic_set(&lock->count, 0);
-
-	spin_unlock_mutex(&lock->wait_lock, flags);
-
-	return prev == 1;
-}
-
-/**
- * mutex_trylock - try to acquire the mutex, without waiting
- * @lock: the mutex to be acquired
- *
- * Try to acquire the mutex atomically. Returns 1 if the mutex
- * has been acquired successfully, and 0 on contention.
- *
- * NOTE: this function follows the spin_trylock() convention, so
- * it is negated from the down_trylock() return values! Be careful
- * about this when converting semaphore users to mutexes.
- *
- * This function must not be used in interrupt context. The
- * mutex must be released by the same task that acquired it.
- */
-int __sched mutex_trylock(struct mutex *lock)
-{
-	int ret;
-
-	ret = __mutex_fastpath_trylock(&lock->count, __mutex_trylock_slowpath);
-	if (ret)
-		mutex_set_owner(lock);
-
-	return ret;
-}
-EXPORT_SYMBOL(mutex_trylock);
-
-#ifndef CONFIG_DEBUG_LOCK_ALLOC
-int __sched
-__ww_mutex_lock(struct ww_mutex *lock, struct ww_acquire_ctx *ctx)
-{
-	int ret;
-
-	might_sleep();
-
-	ret = __mutex_fastpath_lock_retval(&lock->base.count);
-
-	if (likely(!ret)) {
-		ww_mutex_set_context_fastpath(lock, ctx);
-		mutex_set_owner(&lock->base);
-	} else
-		ret = __ww_mutex_lock_slowpath(lock, ctx);
-	return ret;
-}
-EXPORT_SYMBOL(__ww_mutex_lock);
-
-int __sched
-__ww_mutex_lock_interruptible(struct ww_mutex *lock, struct ww_acquire_ctx *ctx)
-{
-	int ret;
-
-	might_sleep();
-
-	ret = __mutex_fastpath_lock_retval(&lock->base.count);
-
-	if (likely(!ret)) {
-		ww_mutex_set_context_fastpath(lock, ctx);
-		mutex_set_owner(&lock->base);
-	} else
-		ret = __ww_mutex_lock_interruptible_slowpath(lock, ctx);
-	return ret;
-}
-EXPORT_SYMBOL(__ww_mutex_lock_interruptible);
-
-#endif
-
-/**
- * atomic_dec_and_mutex_lock - return holding mutex if we dec to 0
- * @cnt: the atomic which we are to dec
- * @lock: the mutex to return holding if we dec to 0
- *
- * return true and hold lock if we dec to 0, return false otherwise
- */
-int atomic_dec_and_mutex_lock(atomic_t *cnt, struct mutex *lock)
-{
-	/* dec if we can't possibly hit 0 */
-	if (atomic_add_unless(cnt, -1, 1))
-		return 0;
-	/* we might hit 0, so take the lock */
-	mutex_lock(lock);
-	if (!atomic_dec_and_test(cnt)) {
-		/* when we actually did the dec, we didn't hit 0 */
-		mutex_unlock(lock);
-		return 0;
-	}
-	/* we hit 0, and we hold the lock */
-	return 1;
-}
-EXPORT_SYMBOL(atomic_dec_and_mutex_lock);
diff --git a/kernel/mutex.h b/kernel/mutex.h
deleted file mode 100644
index 4115fbf83b12..000000000000
--- a/kernel/mutex.h
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * Mutexes: blocking mutual exclusion locks
- *
- * started by Ingo Molnar:
- *
- *  Copyright (C) 2004, 2005, 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
- *
- * This file contains mutex debugging related internal prototypes, for the
- * !CONFIG_DEBUG_MUTEXES case. Most of them are NOPs:
- */
-
-#define spin_lock_mutex(lock, flags) \
-		do { spin_lock(lock); (void)(flags); } while (0)
-#define spin_unlock_mutex(lock, flags) \
-		do { spin_unlock(lock); (void)(flags); } while (0)
-#define mutex_remove_waiter(lock, waiter, ti) \
-		__list_del((waiter)->list.prev, (waiter)->list.next)
-
-#ifdef CONFIG_SMP
-static inline void mutex_set_owner(struct mutex *lock)
-{
-	lock->owner = current;
-}
-
-static inline void mutex_clear_owner(struct mutex *lock)
-{
-	lock->owner = NULL;
-}
-#else
-static inline void mutex_set_owner(struct mutex *lock)
-{
-}
-
-static inline void mutex_clear_owner(struct mutex *lock)
-{
-}
-#endif
-
-#define debug_mutex_wake_waiter(lock, waiter)		do { } while (0)
-#define debug_mutex_free_waiter(waiter)			do { } while (0)
-#define debug_mutex_add_waiter(lock, waiter, ti)	do { } while (0)
-#define debug_mutex_unlock(lock)			do { } while (0)
-#define debug_mutex_init(lock, name, key)		do { } while (0)
-
-static inline void
-debug_mutex_lock_common(struct mutex *lock, struct mutex_waiter *waiter)
-{
-}
-- 
cgit 


From 8eddac3f103736163f49255bcb109edadea167f6 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 31 Oct 2013 18:14:17 +0100
Subject: locking: Move the lockdep code to kernel/locking/

Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-wl7s3tta5isufzfguc23et06@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/Makefile                    |    6 -
 kernel/lockdep.c                   | 4257 ------------------------------------
 kernel/lockdep_internals.h         |  170 --
 kernel/lockdep_proc.c              |  683 ------
 kernel/lockdep_states.h            |    9 -
 kernel/locking/Makefile            |    6 +
 kernel/locking/lockdep.c           | 4257 ++++++++++++++++++++++++++++++++++++
 kernel/locking/lockdep_internals.h |  170 ++
 kernel/locking/lockdep_proc.c      |  683 ++++++
 kernel/locking/lockdep_states.h    |    9 +
 10 files changed, 5125 insertions(+), 5125 deletions(-)
 delete mode 100644 kernel/lockdep.c
 delete mode 100644 kernel/lockdep_internals.h
 delete mode 100644 kernel/lockdep_proc.c
 delete mode 100644 kernel/lockdep_states.h
 create mode 100644 kernel/locking/lockdep.c
 create mode 100644 kernel/locking/lockdep_internals.h
 create mode 100644 kernel/locking/lockdep_proc.c
 create mode 100644 kernel/locking/lockdep_states.h

diff --git a/kernel/Makefile b/kernel/Makefile
index 330b14666475..4fffd6ee42c1 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -14,8 +14,6 @@ obj-y     = fork.o exec_domain.o panic.o \
 
 ifdef CONFIG_FUNCTION_TRACER
 # Do not trace debug files and internal ftrace files
-CFLAGS_REMOVE_lockdep.o = -pg
-CFLAGS_REMOVE_lockdep_proc.o = -pg
 CFLAGS_REMOVE_cgroup-debug.o = -pg
 CFLAGS_REMOVE_irq_work.o = -pg
 endif
@@ -33,10 +31,6 @@ obj-$(CONFIG_FREEZER) += freezer.o
 obj-$(CONFIG_PROFILING) += profile.o
 obj-$(CONFIG_STACKTRACE) += stacktrace.o
 obj-y += time/
-obj-$(CONFIG_LOCKDEP) += lockdep.o
-ifeq ($(CONFIG_PROC_FS),y)
-obj-$(CONFIG_LOCKDEP) += lockdep_proc.o
-endif
 obj-$(CONFIG_FUTEX) += futex.o
 ifeq ($(CONFIG_COMPAT),y)
 obj-$(CONFIG_FUTEX) += futex_compat.o
diff --git a/kernel/lockdep.c b/kernel/lockdep.c
deleted file mode 100644
index 4e8e14c34e42..000000000000
--- a/kernel/lockdep.c
+++ /dev/null
@@ -1,4257 +0,0 @@
-/*
- * kernel/lockdep.c
- *
- * Runtime locking correctness validator
- *
- * Started by Ingo Molnar:
- *
- *  Copyright (C) 2006,2007 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
- *  Copyright (C) 2007 Red Hat, Inc., Peter Zijlstra <pzijlstr@redhat.com>
- *
- * this code maps all the lock dependencies as they occur in a live kernel
- * and will warn about the following classes of locking bugs:
- *
- * - lock inversion scenarios
- * - circular lock dependencies
- * - hardirq/softirq safe/unsafe locking bugs
- *
- * Bugs are reported even if the current locking scenario does not cause
- * any deadlock at this point.
- *
- * I.e. if anytime in the past two locks were taken in a different order,
- * even if it happened for another task, even if those were different
- * locks (but of the same class as this lock), this code will detect it.
- *
- * Thanks to Arjan van de Ven for coming up with the initial idea of
- * mapping lock dependencies runtime.
- */
-#define DISABLE_BRANCH_PROFILING
-#include <linux/mutex.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-#include <linux/module.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/spinlock.h>
-#include <linux/kallsyms.h>
-#include <linux/interrupt.h>
-#include <linux/stacktrace.h>
-#include <linux/debug_locks.h>
-#include <linux/irqflags.h>
-#include <linux/utsname.h>
-#include <linux/hash.h>
-#include <linux/ftrace.h>
-#include <linux/stringify.h>
-#include <linux/bitops.h>
-#include <linux/gfp.h>
-#include <linux/kmemcheck.h>
-
-#include <asm/sections.h>
-
-#include "lockdep_internals.h"
-
-#define CREATE_TRACE_POINTS
-#include <trace/events/lock.h>
-
-#ifdef CONFIG_PROVE_LOCKING
-int prove_locking = 1;
-module_param(prove_locking, int, 0644);
-#else
-#define prove_locking 0
-#endif
-
-#ifdef CONFIG_LOCK_STAT
-int lock_stat = 1;
-module_param(lock_stat, int, 0644);
-#else
-#define lock_stat 0
-#endif
-
-/*
- * lockdep_lock: protects the lockdep graph, the hashes and the
- *               class/list/hash allocators.
- *
- * This is one of the rare exceptions where it's justified
- * to use a raw spinlock - we really dont want the spinlock
- * code to recurse back into the lockdep code...
- */
-static arch_spinlock_t lockdep_lock = (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED;
-
-static int graph_lock(void)
-{
-	arch_spin_lock(&lockdep_lock);
-	/*
-	 * Make sure that if another CPU detected a bug while
-	 * walking the graph we dont change it (while the other
-	 * CPU is busy printing out stuff with the graph lock
-	 * dropped already)
-	 */
-	if (!debug_locks) {
-		arch_spin_unlock(&lockdep_lock);
-		return 0;
-	}
-	/* prevent any recursions within lockdep from causing deadlocks */
-	current->lockdep_recursion++;
-	return 1;
-}
-
-static inline int graph_unlock(void)
-{
-	if (debug_locks && !arch_spin_is_locked(&lockdep_lock)) {
-		/*
-		 * The lockdep graph lock isn't locked while we expect it to
-		 * be, we're confused now, bye!
-		 */
-		return DEBUG_LOCKS_WARN_ON(1);
-	}
-
-	current->lockdep_recursion--;
-	arch_spin_unlock(&lockdep_lock);
-	return 0;
-}
-
-/*
- * Turn lock debugging off and return with 0 if it was off already,
- * and also release the graph lock:
- */
-static inline int debug_locks_off_graph_unlock(void)
-{
-	int ret = debug_locks_off();
-
-	arch_spin_unlock(&lockdep_lock);
-
-	return ret;
-}
-
-static int lockdep_initialized;
-
-unsigned long nr_list_entries;
-static struct lock_list list_entries[MAX_LOCKDEP_ENTRIES];
-
-/*
- * All data structures here are protected by the global debug_lock.
- *
- * Mutex key structs only get allocated, once during bootup, and never
- * get freed - this significantly simplifies the debugging code.
- */
-unsigned long nr_lock_classes;
-static struct lock_class lock_classes[MAX_LOCKDEP_KEYS];
-
-static inline struct lock_class *hlock_class(struct held_lock *hlock)
-{
-	if (!hlock->class_idx) {
-		/*
-		 * Someone passed in garbage, we give up.
-		 */
-		DEBUG_LOCKS_WARN_ON(1);
-		return NULL;
-	}
-	return lock_classes + hlock->class_idx - 1;
-}
-
-#ifdef CONFIG_LOCK_STAT
-static DEFINE_PER_CPU(struct lock_class_stats[MAX_LOCKDEP_KEYS],
-		      cpu_lock_stats);
-
-static inline u64 lockstat_clock(void)
-{
-	return local_clock();
-}
-
-static int lock_point(unsigned long points[], unsigned long ip)
-{
-	int i;
-
-	for (i = 0; i < LOCKSTAT_POINTS; i++) {
-		if (points[i] == 0) {
-			points[i] = ip;
-			break;
-		}
-		if (points[i] == ip)
-			break;
-	}
-
-	return i;
-}
-
-static void lock_time_inc(struct lock_time *lt, u64 time)
-{
-	if (time > lt->max)
-		lt->max = time;
-
-	if (time < lt->min || !lt->nr)
-		lt->min = time;
-
-	lt->total += time;
-	lt->nr++;
-}
-
-static inline void lock_time_add(struct lock_time *src, struct lock_time *dst)
-{
-	if (!src->nr)
-		return;
-
-	if (src->max > dst->max)
-		dst->max = src->max;
-
-	if (src->min < dst->min || !dst->nr)
-		dst->min = src->min;
-
-	dst->total += src->total;
-	dst->nr += src->nr;
-}
-
-struct lock_class_stats lock_stats(struct lock_class *class)
-{
-	struct lock_class_stats stats;
-	int cpu, i;
-
-	memset(&stats, 0, sizeof(struct lock_class_stats));
-	for_each_possible_cpu(cpu) {
-		struct lock_class_stats *pcs =
-			&per_cpu(cpu_lock_stats, cpu)[class - lock_classes];
-
-		for (i = 0; i < ARRAY_SIZE(stats.contention_point); i++)
-			stats.contention_point[i] += pcs->contention_point[i];
-
-		for (i = 0; i < ARRAY_SIZE(stats.contending_point); i++)
-			stats.contending_point[i] += pcs->contending_point[i];
-
-		lock_time_add(&pcs->read_waittime, &stats.read_waittime);
-		lock_time_add(&pcs->write_waittime, &stats.write_waittime);
-
-		lock_time_add(&pcs->read_holdtime, &stats.read_holdtime);
-		lock_time_add(&pcs->write_holdtime, &stats.write_holdtime);
-
-		for (i = 0; i < ARRAY_SIZE(stats.bounces); i++)
-			stats.bounces[i] += pcs->bounces[i];
-	}
-
-	return stats;
-}
-
-void clear_lock_stats(struct lock_class *class)
-{
-	int cpu;
-
-	for_each_possible_cpu(cpu) {
-		struct lock_class_stats *cpu_stats =
-			&per_cpu(cpu_lock_stats, cpu)[class - lock_classes];
-
-		memset(cpu_stats, 0, sizeof(struct lock_class_stats));
-	}
-	memset(class->contention_point, 0, sizeof(class->contention_point));
-	memset(class->contending_point, 0, sizeof(class->contending_point));
-}
-
-static struct lock_class_stats *get_lock_stats(struct lock_class *class)
-{
-	return &get_cpu_var(cpu_lock_stats)[class - lock_classes];
-}
-
-static void put_lock_stats(struct lock_class_stats *stats)
-{
-	put_cpu_var(cpu_lock_stats);
-}
-
-static void lock_release_holdtime(struct held_lock *hlock)
-{
-	struct lock_class_stats *stats;
-	u64 holdtime;
-
-	if (!lock_stat)
-		return;
-
-	holdtime = lockstat_clock() - hlock->holdtime_stamp;
-
-	stats = get_lock_stats(hlock_class(hlock));
-	if (hlock->read)
-		lock_time_inc(&stats->read_holdtime, holdtime);
-	else
-		lock_time_inc(&stats->write_holdtime, holdtime);
-	put_lock_stats(stats);
-}
-#else
-static inline void lock_release_holdtime(struct held_lock *hlock)
-{
-}
-#endif
-
-/*
- * We keep a global list of all lock classes. The list only grows,
- * never shrinks. The list is only accessed with the lockdep
- * spinlock lock held.
- */
-LIST_HEAD(all_lock_classes);
-
-/*
- * The lockdep classes are in a hash-table as well, for fast lookup:
- */
-#define CLASSHASH_BITS		(MAX_LOCKDEP_KEYS_BITS - 1)
-#define CLASSHASH_SIZE		(1UL << CLASSHASH_BITS)
-#define __classhashfn(key)	hash_long((unsigned long)key, CLASSHASH_BITS)
-#define classhashentry(key)	(classhash_table + __classhashfn((key)))
-
-static struct list_head classhash_table[CLASSHASH_SIZE];
-
-/*
- * We put the lock dependency chains into a hash-table as well, to cache
- * their existence:
- */
-#define CHAINHASH_BITS		(MAX_LOCKDEP_CHAINS_BITS-1)
-#define CHAINHASH_SIZE		(1UL << CHAINHASH_BITS)
-#define __chainhashfn(chain)	hash_long(chain, CHAINHASH_BITS)
-#define chainhashentry(chain)	(chainhash_table + __chainhashfn((chain)))
-
-static struct list_head chainhash_table[CHAINHASH_SIZE];
-
-/*
- * The hash key of the lock dependency chains is a hash itself too:
- * it's a hash of all locks taken up to that lock, including that lock.
- * It's a 64-bit hash, because it's important for the keys to be
- * unique.
- */
-#define iterate_chain_key(key1, key2) \
-	(((key1) << MAX_LOCKDEP_KEYS_BITS) ^ \
-	((key1) >> (64-MAX_LOCKDEP_KEYS_BITS)) ^ \
-	(key2))
-
-void lockdep_off(void)
-{
-	current->lockdep_recursion++;
-}
-EXPORT_SYMBOL(lockdep_off);
-
-void lockdep_on(void)
-{
-	current->lockdep_recursion--;
-}
-EXPORT_SYMBOL(lockdep_on);
-
-/*
- * Debugging switches:
- */
-
-#define VERBOSE			0
-#define VERY_VERBOSE		0
-
-#if VERBOSE
-# define HARDIRQ_VERBOSE	1
-# define SOFTIRQ_VERBOSE	1
-# define RECLAIM_VERBOSE	1
-#else
-# define HARDIRQ_VERBOSE	0
-# define SOFTIRQ_VERBOSE	0
-# define RECLAIM_VERBOSE	0
-#endif
-
-#if VERBOSE || HARDIRQ_VERBOSE || SOFTIRQ_VERBOSE || RECLAIM_VERBOSE
-/*
- * Quick filtering for interesting events:
- */
-static int class_filter(struct lock_class *class)
-{
-#if 0
-	/* Example */
-	if (class->name_version == 1 &&
-			!strcmp(class->name, "lockname"))
-		return 1;
-	if (class->name_version == 1 &&
-			!strcmp(class->name, "&struct->lockfield"))
-		return 1;
-#endif
-	/* Filter everything else. 1 would be to allow everything else */
-	return 0;
-}
-#endif
-
-static int verbose(struct lock_class *class)
-{
-#if VERBOSE
-	return class_filter(class);
-#endif
-	return 0;
-}
-
-/*
- * Stack-trace: tightly packed array of stack backtrace
- * addresses. Protected by the graph_lock.
- */
-unsigned long nr_stack_trace_entries;
-static unsigned long stack_trace[MAX_STACK_TRACE_ENTRIES];
-
-static void print_lockdep_off(const char *bug_msg)
-{
-	printk(KERN_DEBUG "%s\n", bug_msg);
-	printk(KERN_DEBUG "turning off the locking correctness validator.\n");
-	printk(KERN_DEBUG "Please attach the output of /proc/lock_stat to the bug report\n");
-}
-
-static int save_trace(struct stack_trace *trace)
-{
-	trace->nr_entries = 0;
-	trace->max_entries = MAX_STACK_TRACE_ENTRIES - nr_stack_trace_entries;
-	trace->entries = stack_trace + nr_stack_trace_entries;
-
-	trace->skip = 3;
-
-	save_stack_trace(trace);
-
-	/*
-	 * Some daft arches put -1 at the end to indicate its a full trace.
-	 *
-	 * <rant> this is buggy anyway, since it takes a whole extra entry so a
-	 * complete trace that maxes out the entries provided will be reported
-	 * as incomplete, friggin useless </rant>
-	 */
-	if (trace->nr_entries != 0 &&
-	    trace->entries[trace->nr_entries-1] == ULONG_MAX)
-		trace->nr_entries--;
-
-	trace->max_entries = trace->nr_entries;
-
-	nr_stack_trace_entries += trace->nr_entries;
-
-	if (nr_stack_trace_entries >= MAX_STACK_TRACE_ENTRIES-1) {
-		if (!debug_locks_off_graph_unlock())
-			return 0;
-
-		print_lockdep_off("BUG: MAX_STACK_TRACE_ENTRIES too low!");
-		dump_stack();
-
-		return 0;
-	}
-
-	return 1;
-}
-
-unsigned int nr_hardirq_chains;
-unsigned int nr_softirq_chains;
-unsigned int nr_process_chains;
-unsigned int max_lockdep_depth;
-
-#ifdef CONFIG_DEBUG_LOCKDEP
-/*
- * We cannot printk in early bootup code. Not even early_printk()
- * might work. So we mark any initialization errors and printk
- * about it later on, in lockdep_info().
- */
-static int lockdep_init_error;
-static const char *lock_init_error;
-static unsigned long lockdep_init_trace_data[20];
-static struct stack_trace lockdep_init_trace = {
-	.max_entries = ARRAY_SIZE(lockdep_init_trace_data),
-	.entries = lockdep_init_trace_data,
-};
-
-/*
- * Various lockdep statistics:
- */
-DEFINE_PER_CPU(struct lockdep_stats, lockdep_stats);
-#endif
-
-/*
- * Locking printouts:
- */
-
-#define __USAGE(__STATE)						\
-	[LOCK_USED_IN_##__STATE] = "IN-"__stringify(__STATE)"-W",	\
-	[LOCK_ENABLED_##__STATE] = __stringify(__STATE)"-ON-W",		\
-	[LOCK_USED_IN_##__STATE##_READ] = "IN-"__stringify(__STATE)"-R",\
-	[LOCK_ENABLED_##__STATE##_READ] = __stringify(__STATE)"-ON-R",
-
-static const char *usage_str[] =
-{
-#define LOCKDEP_STATE(__STATE) __USAGE(__STATE)
-#include "lockdep_states.h"
-#undef LOCKDEP_STATE
-	[LOCK_USED] = "INITIAL USE",
-};
-
-const char * __get_key_name(struct lockdep_subclass_key *key, char *str)
-{
-	return kallsyms_lookup((unsigned long)key, NULL, NULL, NULL, str);
-}
-
-static inline unsigned long lock_flag(enum lock_usage_bit bit)
-{
-	return 1UL << bit;
-}
-
-static char get_usage_char(struct lock_class *class, enum lock_usage_bit bit)
-{
-	char c = '.';
-
-	if (class->usage_mask & lock_flag(bit + 2))
-		c = '+';
-	if (class->usage_mask & lock_flag(bit)) {
-		c = '-';
-		if (class->usage_mask & lock_flag(bit + 2))
-			c = '?';
-	}
-
-	return c;
-}
-
-void get_usage_chars(struct lock_class *class, char usage[LOCK_USAGE_CHARS])
-{
-	int i = 0;
-
-#define LOCKDEP_STATE(__STATE) 						\
-	usage[i++] = get_usage_char(class, LOCK_USED_IN_##__STATE);	\
-	usage[i++] = get_usage_char(class, LOCK_USED_IN_##__STATE##_READ);
-#include "lockdep_states.h"
-#undef LOCKDEP_STATE
-
-	usage[i] = '\0';
-}
-
-static void __print_lock_name(struct lock_class *class)
-{
-	char str[KSYM_NAME_LEN];
-	const char *name;
-
-	name = class->name;
-	if (!name) {
-		name = __get_key_name(class->key, str);
-		printk("%s", name);
-	} else {
-		printk("%s", name);
-		if (class->name_version > 1)
-			printk("#%d", class->name_version);
-		if (class->subclass)
-			printk("/%d", class->subclass);
-	}
-}
-
-static void print_lock_name(struct lock_class *class)
-{
-	char usage[LOCK_USAGE_CHARS];
-
-	get_usage_chars(class, usage);
-
-	printk(" (");
-	__print_lock_name(class);
-	printk("){%s}", usage);
-}
-
-static void print_lockdep_cache(struct lockdep_map *lock)
-{
-	const char *name;
-	char str[KSYM_NAME_LEN];
-
-	name = lock->name;
-	if (!name)
-		name = __get_key_name(lock->key->subkeys, str);
-
-	printk("%s", name);
-}
-
-static void print_lock(struct held_lock *hlock)
-{
-	print_lock_name(hlock_class(hlock));
-	printk(", at: ");
-	print_ip_sym(hlock->acquire_ip);
-}
-
-static void lockdep_print_held_locks(struct task_struct *curr)
-{
-	int i, depth = curr->lockdep_depth;
-
-	if (!depth) {
-		printk("no locks held by %s/%d.\n", curr->comm, task_pid_nr(curr));
-		return;
-	}
-	printk("%d lock%s held by %s/%d:\n",
-		depth, depth > 1 ? "s" : "", curr->comm, task_pid_nr(curr));
-
-	for (i = 0; i < depth; i++) {
-		printk(" #%d: ", i);
-		print_lock(curr->held_locks + i);
-	}
-}
-
-static void print_kernel_ident(void)
-{
-	printk("%s %.*s %s\n", init_utsname()->release,
-		(int)strcspn(init_utsname()->version, " "),
-		init_utsname()->version,
-		print_tainted());
-}
-
-static int very_verbose(struct lock_class *class)
-{
-#if VERY_VERBOSE
-	return class_filter(class);
-#endif
-	return 0;
-}
-
-/*
- * Is this the address of a static object:
- */
-static int static_obj(void *obj)
-{
-	unsigned long start = (unsigned long) &_stext,
-		      end   = (unsigned long) &_end,
-		      addr  = (unsigned long) obj;
-
-	/*
-	 * static variable?
-	 */
-	if ((addr >= start) && (addr < end))
-		return 1;
-
-	if (arch_is_kernel_data(addr))
-		return 1;
-
-	/*
-	 * in-kernel percpu var?
-	 */
-	if (is_kernel_percpu_address(addr))
-		return 1;
-
-	/*
-	 * module static or percpu var?
-	 */
-	return is_module_address(addr) || is_module_percpu_address(addr);
-}
-
-/*
- * To make lock name printouts unique, we calculate a unique
- * class->name_version generation counter:
- */
-static int count_matching_names(struct lock_class *new_class)
-{
-	struct lock_class *class;
-	int count = 0;
-
-	if (!new_class->name)
-		return 0;
-
-	list_for_each_entry(class, &all_lock_classes, lock_entry) {
-		if (new_class->key - new_class->subclass == class->key)
-			return class->name_version;
-		if (class->name && !strcmp(class->name, new_class->name))
-			count = max(count, class->name_version);
-	}
-
-	return count + 1;
-}
-
-/*
- * Register a lock's class in the hash-table, if the class is not present
- * yet. Otherwise we look it up. We cache the result in the lock object
- * itself, so actual lookup of the hash should be once per lock object.
- */
-static inline struct lock_class *
-look_up_lock_class(struct lockdep_map *lock, unsigned int subclass)
-{
-	struct lockdep_subclass_key *key;
-	struct list_head *hash_head;
-	struct lock_class *class;
-
-#ifdef CONFIG_DEBUG_LOCKDEP
-	/*
-	 * If the architecture calls into lockdep before initializing
-	 * the hashes then we'll warn about it later. (we cannot printk
-	 * right now)
-	 */
-	if (unlikely(!lockdep_initialized)) {
-		lockdep_init();
-		lockdep_init_error = 1;
-		lock_init_error = lock->name;
-		save_stack_trace(&lockdep_init_trace);
-	}
-#endif
-
-	if (unlikely(subclass >= MAX_LOCKDEP_SUBCLASSES)) {
-		debug_locks_off();
-		printk(KERN_ERR
-			"BUG: looking up invalid subclass: %u\n", subclass);
-		printk(KERN_ERR
-			"turning off the locking correctness validator.\n");
-		dump_stack();
-		return NULL;
-	}
-
-	/*
-	 * Static locks do not have their class-keys yet - for them the key
-	 * is the lock object itself:
-	 */
-	if (unlikely(!lock->key))
-		lock->key = (void *)lock;
-
-	/*
-	 * NOTE: the class-key must be unique. For dynamic locks, a static
-	 * lock_class_key variable is passed in through the mutex_init()
-	 * (or spin_lock_init()) call - which acts as the key. For static
-	 * locks we use the lock object itself as the key.
-	 */
-	BUILD_BUG_ON(sizeof(struct lock_class_key) >
-			sizeof(struct lockdep_map));
-
-	key = lock->key->subkeys + subclass;
-
-	hash_head = classhashentry(key);
-
-	/*
-	 * We can walk the hash lockfree, because the hash only
-	 * grows, and we are careful when adding entries to the end:
-	 */
-	list_for_each_entry(class, hash_head, hash_entry) {
-		if (class->key == key) {
-			/*
-			 * Huh! same key, different name? Did someone trample
-			 * on some memory? We're most confused.
-			 */
-			WARN_ON_ONCE(class->name != lock->name);
-			return class;
-		}
-	}
-
-	return NULL;
-}
-
-/*
- * Register a lock's class in the hash-table, if the class is not present
- * yet. Otherwise we look it up. We cache the result in the lock object
- * itself, so actual lookup of the hash should be once per lock object.
- */
-static inline struct lock_class *
-register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
-{
-	struct lockdep_subclass_key *key;
-	struct list_head *hash_head;
-	struct lock_class *class;
-	unsigned long flags;
-
-	class = look_up_lock_class(lock, subclass);
-	if (likely(class))
-		goto out_set_class_cache;
-
-	/*
-	 * Debug-check: all keys must be persistent!
- 	 */
-	if (!static_obj(lock->key)) {
-		debug_locks_off();
-		printk("INFO: trying to register non-static key.\n");
-		printk("the code is fine but needs lockdep annotation.\n");
-		printk("turning off the locking correctness validator.\n");
-		dump_stack();
-
-		return NULL;
-	}
-
-	key = lock->key->subkeys + subclass;
-	hash_head = classhashentry(key);
-
-	raw_local_irq_save(flags);
-	if (!graph_lock()) {
-		raw_local_irq_restore(flags);
-		return NULL;
-	}
-	/*
-	 * We have to do the hash-walk again, to avoid races
-	 * with another CPU:
-	 */
-	list_for_each_entry(class, hash_head, hash_entry)
-		if (class->key == key)
-			goto out_unlock_set;
-	/*
-	 * Allocate a new key from the static array, and add it to
-	 * the hash:
-	 */
-	if (nr_lock_classes >= MAX_LOCKDEP_KEYS) {
-		if (!debug_locks_off_graph_unlock()) {
-			raw_local_irq_restore(flags);
-			return NULL;
-		}
-		raw_local_irq_restore(flags);
-
-		print_lockdep_off("BUG: MAX_LOCKDEP_KEYS too low!");
-		dump_stack();
-		return NULL;
-	}
-	class = lock_classes + nr_lock_classes++;
-	debug_atomic_inc(nr_unused_locks);
-	class->key = key;
-	class->name = lock->name;
-	class->subclass = subclass;
-	INIT_LIST_HEAD(&class->lock_entry);
-	INIT_LIST_HEAD(&class->locks_before);
-	INIT_LIST_HEAD(&class->locks_after);
-	class->name_version = count_matching_names(class);
-	/*
-	 * We use RCU's safe list-add method to make
-	 * parallel walking of the hash-list safe:
-	 */
-	list_add_tail_rcu(&class->hash_entry, hash_head);
-	/*
-	 * Add it to the global list of classes:
-	 */
-	list_add_tail_rcu(&class->lock_entry, &all_lock_classes);
-
-	if (verbose(class)) {
-		graph_unlock();
-		raw_local_irq_restore(flags);
-
-		printk("\nnew class %p: %s", class->key, class->name);
-		if (class->name_version > 1)
-			printk("#%d", class->name_version);
-		printk("\n");
-		dump_stack();
-
-		raw_local_irq_save(flags);
-		if (!graph_lock()) {
-			raw_local_irq_restore(flags);
-			return NULL;
-		}
-	}
-out_unlock_set:
-	graph_unlock();
-	raw_local_irq_restore(flags);
-
-out_set_class_cache:
-	if (!subclass || force)
-		lock->class_cache[0] = class;
-	else if (subclass < NR_LOCKDEP_CACHING_CLASSES)
-		lock->class_cache[subclass] = class;
-
-	/*
-	 * Hash collision, did we smoke some? We found a class with a matching
-	 * hash but the subclass -- which is hashed in -- didn't match.
-	 */
-	if (DEBUG_LOCKS_WARN_ON(class->subclass != subclass))
-		return NULL;
-
-	return class;
-}
-
-#ifdef CONFIG_PROVE_LOCKING
-/*
- * Allocate a lockdep entry. (assumes the graph_lock held, returns
- * with NULL on failure)
- */
-static struct lock_list *alloc_list_entry(void)
-{
-	if (nr_list_entries >= MAX_LOCKDEP_ENTRIES) {
-		if (!debug_locks_off_graph_unlock())
-			return NULL;
-
-		print_lockdep_off("BUG: MAX_LOCKDEP_ENTRIES too low!");
-		dump_stack();
-		return NULL;
-	}
-	return list_entries + nr_list_entries++;
-}
-
-/*
- * Add a new dependency to the head of the list:
- */
-static int add_lock_to_list(struct lock_class *class, struct lock_class *this,
-			    struct list_head *head, unsigned long ip,
-			    int distance, struct stack_trace *trace)
-{
-	struct lock_list *entry;
-	/*
-	 * Lock not present yet - get a new dependency struct and
-	 * add it to the list:
-	 */
-	entry = alloc_list_entry();
-	if (!entry)
-		return 0;
-
-	entry->class = this;
-	entry->distance = distance;
-	entry->trace = *trace;
-	/*
-	 * Since we never remove from the dependency list, the list can
-	 * be walked lockless by other CPUs, it's only allocation
-	 * that must be protected by the spinlock. But this also means
-	 * we must make new entries visible only once writes to the
-	 * entry become visible - hence the RCU op:
-	 */
-	list_add_tail_rcu(&entry->entry, head);
-
-	return 1;
-}
-
-/*
- * For good efficiency of modular, we use power of 2
- */
-#define MAX_CIRCULAR_QUEUE_SIZE		4096UL
-#define CQ_MASK				(MAX_CIRCULAR_QUEUE_SIZE-1)
-
-/*
- * The circular_queue and helpers is used to implement the
- * breadth-first search(BFS)algorithem, by which we can build
- * the shortest path from the next lock to be acquired to the
- * previous held lock if there is a circular between them.
- */
-struct circular_queue {
-	unsigned long element[MAX_CIRCULAR_QUEUE_SIZE];
-	unsigned int  front, rear;
-};
-
-static struct circular_queue lock_cq;
-
-unsigned int max_bfs_queue_depth;
-
-static unsigned int lockdep_dependency_gen_id;
-
-static inline void __cq_init(struct circular_queue *cq)
-{
-	cq->front = cq->rear = 0;
-	lockdep_dependency_gen_id++;
-}
-
-static inline int __cq_empty(struct circular_queue *cq)
-{
-	return (cq->front == cq->rear);
-}
-
-static inline int __cq_full(struct circular_queue *cq)
-{
-	return ((cq->rear + 1) & CQ_MASK) == cq->front;
-}
-
-static inline int __cq_enqueue(struct circular_queue *cq, unsigned long elem)
-{
-	if (__cq_full(cq))
-		return -1;
-
-	cq->element[cq->rear] = elem;
-	cq->rear = (cq->rear + 1) & CQ_MASK;
-	return 0;
-}
-
-static inline int __cq_dequeue(struct circular_queue *cq, unsigned long *elem)
-{
-	if (__cq_empty(cq))
-		return -1;
-
-	*elem = cq->element[cq->front];
-	cq->front = (cq->front + 1) & CQ_MASK;
-	return 0;
-}
-
-static inline unsigned int  __cq_get_elem_count(struct circular_queue *cq)
-{
-	return (cq->rear - cq->front) & CQ_MASK;
-}
-
-static inline void mark_lock_accessed(struct lock_list *lock,
-					struct lock_list *parent)
-{
-	unsigned long nr;
-
-	nr = lock - list_entries;
-	WARN_ON(nr >= nr_list_entries); /* Out-of-bounds, input fail */
-	lock->parent = parent;
-	lock->class->dep_gen_id = lockdep_dependency_gen_id;
-}
-
-static inline unsigned long lock_accessed(struct lock_list *lock)
-{
-	unsigned long nr;
-
-	nr = lock - list_entries;
-	WARN_ON(nr >= nr_list_entries); /* Out-of-bounds, input fail */
-	return lock->class->dep_gen_id == lockdep_dependency_gen_id;
-}
-
-static inline struct lock_list *get_lock_parent(struct lock_list *child)
-{
-	return child->parent;
-}
-
-static inline int get_lock_depth(struct lock_list *child)
-{
-	int depth = 0;
-	struct lock_list *parent;
-
-	while ((parent = get_lock_parent(child))) {
-		child = parent;
-		depth++;
-	}
-	return depth;
-}
-
-static int __bfs(struct lock_list *source_entry,
-		 void *data,
-		 int (*match)(struct lock_list *entry, void *data),
-		 struct lock_list **target_entry,
-		 int forward)
-{
-	struct lock_list *entry;
-	struct list_head *head;
-	struct circular_queue *cq = &lock_cq;
-	int ret = 1;
-
-	if (match(source_entry, data)) {
-		*target_entry = source_entry;
-		ret = 0;
-		goto exit;
-	}
-
-	if (forward)
-		head = &source_entry->class->locks_after;
-	else
-		head = &source_entry->class->locks_before;
-
-	if (list_empty(head))
-		goto exit;
-
-	__cq_init(cq);
-	__cq_enqueue(cq, (unsigned long)source_entry);
-
-	while (!__cq_empty(cq)) {
-		struct lock_list *lock;
-
-		__cq_dequeue(cq, (unsigned long *)&lock);
-
-		if (!lock->class) {
-			ret = -2;
-			goto exit;
-		}
-
-		if (forward)
-			head = &lock->class->locks_after;
-		else
-			head = &lock->class->locks_before;
-
-		list_for_each_entry(entry, head, entry) {
-			if (!lock_accessed(entry)) {
-				unsigned int cq_depth;
-				mark_lock_accessed(entry, lock);
-				if (match(entry, data)) {
-					*target_entry = entry;
-					ret = 0;
-					goto exit;
-				}
-
-				if (__cq_enqueue(cq, (unsigned long)entry)) {
-					ret = -1;
-					goto exit;
-				}
-				cq_depth = __cq_get_elem_count(cq);
-				if (max_bfs_queue_depth < cq_depth)
-					max_bfs_queue_depth = cq_depth;
-			}
-		}
-	}
-exit:
-	return ret;
-}
-
-static inline int __bfs_forwards(struct lock_list *src_entry,
-			void *data,
-			int (*match)(struct lock_list *entry, void *data),
-			struct lock_list **target_entry)
-{
-	return __bfs(src_entry, data, match, target_entry, 1);
-
-}
-
-static inline int __bfs_backwards(struct lock_list *src_entry,
-			void *data,
-			int (*match)(struct lock_list *entry, void *data),
-			struct lock_list **target_entry)
-{
-	return __bfs(src_entry, data, match, target_entry, 0);
-
-}
-
-/*
- * Recursive, forwards-direction lock-dependency checking, used for
- * both noncyclic checking and for hardirq-unsafe/softirq-unsafe
- * checking.
- */
-
-/*
- * Print a dependency chain entry (this is only done when a deadlock
- * has been detected):
- */
-static noinline int
-print_circular_bug_entry(struct lock_list *target, int depth)
-{
-	if (debug_locks_silent)
-		return 0;
-	printk("\n-> #%u", depth);
-	print_lock_name(target->class);
-	printk(":\n");
-	print_stack_trace(&target->trace, 6);
-
-	return 0;
-}
-
-static void
-print_circular_lock_scenario(struct held_lock *src,
-			     struct held_lock *tgt,
-			     struct lock_list *prt)
-{
-	struct lock_class *source = hlock_class(src);
-	struct lock_class *target = hlock_class(tgt);
-	struct lock_class *parent = prt->class;
-
-	/*
-	 * A direct locking problem where unsafe_class lock is taken
-	 * directly by safe_class lock, then all we need to show
-	 * is the deadlock scenario, as it is obvious that the
-	 * unsafe lock is taken under the safe lock.
-	 *
-	 * But if there is a chain instead, where the safe lock takes
-	 * an intermediate lock (middle_class) where this lock is
-	 * not the same as the safe lock, then the lock chain is
-	 * used to describe the problem. Otherwise we would need
-	 * to show a different CPU case for each link in the chain
-	 * from the safe_class lock to the unsafe_class lock.
-	 */
-	if (parent != source) {
-		printk("Chain exists of:\n  ");
-		__print_lock_name(source);
-		printk(" --> ");
-		__print_lock_name(parent);
-		printk(" --> ");
-		__print_lock_name(target);
-		printk("\n\n");
-	}
-
-	printk(" Possible unsafe locking scenario:\n\n");
-	printk("       CPU0                    CPU1\n");
-	printk("       ----                    ----\n");
-	printk("  lock(");
-	__print_lock_name(target);
-	printk(");\n");
-	printk("                               lock(");
-	__print_lock_name(parent);
-	printk(");\n");
-	printk("                               lock(");
-	__print_lock_name(target);
-	printk(");\n");
-	printk("  lock(");
-	__print_lock_name(source);
-	printk(");\n");
-	printk("\n *** DEADLOCK ***\n\n");
-}
-
-/*
- * When a circular dependency is detected, print the
- * header first:
- */
-static noinline int
-print_circular_bug_header(struct lock_list *entry, unsigned int depth,
-			struct held_lock *check_src,
-			struct held_lock *check_tgt)
-{
-	struct task_struct *curr = current;
-
-	if (debug_locks_silent)
-		return 0;
-
-	printk("\n");
-	printk("======================================================\n");
-	printk("[ INFO: possible circular locking dependency detected ]\n");
-	print_kernel_ident();
-	printk("-------------------------------------------------------\n");
-	printk("%s/%d is trying to acquire lock:\n",
-		curr->comm, task_pid_nr(curr));
-	print_lock(check_src);
-	printk("\nbut task is already holding lock:\n");
-	print_lock(check_tgt);
-	printk("\nwhich lock already depends on the new lock.\n\n");
-	printk("\nthe existing dependency chain (in reverse order) is:\n");
-
-	print_circular_bug_entry(entry, depth);
-
-	return 0;
-}
-
-static inline int class_equal(struct lock_list *entry, void *data)
-{
-	return entry->class == data;
-}
-
-static noinline int print_circular_bug(struct lock_list *this,
-				struct lock_list *target,
-				struct held_lock *check_src,
-				struct held_lock *check_tgt)
-{
-	struct task_struct *curr = current;
-	struct lock_list *parent;
-	struct lock_list *first_parent;
-	int depth;
-
-	if (!debug_locks_off_graph_unlock() || debug_locks_silent)
-		return 0;
-
-	if (!save_trace(&this->trace))
-		return 0;
-
-	depth = get_lock_depth(target);
-
-	print_circular_bug_header(target, depth, check_src, check_tgt);
-
-	parent = get_lock_parent(target);
-	first_parent = parent;
-
-	while (parent) {
-		print_circular_bug_entry(parent, --depth);
-		parent = get_lock_parent(parent);
-	}
-
-	printk("\nother info that might help us debug this:\n\n");
-	print_circular_lock_scenario(check_src, check_tgt,
-				     first_parent);
-
-	lockdep_print_held_locks(curr);
-
-	printk("\nstack backtrace:\n");
-	dump_stack();
-
-	return 0;
-}
-
-static noinline int print_bfs_bug(int ret)
-{
-	if (!debug_locks_off_graph_unlock())
-		return 0;
-
-	/*
-	 * Breadth-first-search failed, graph got corrupted?
-	 */
-	WARN(1, "lockdep bfs error:%d\n", ret);
-
-	return 0;
-}
-
-static int noop_count(struct lock_list *entry, void *data)
-{
-	(*(unsigned long *)data)++;
-	return 0;
-}
-
-unsigned long __lockdep_count_forward_deps(struct lock_list *this)
-{
-	unsigned long  count = 0;
-	struct lock_list *uninitialized_var(target_entry);
-
-	__bfs_forwards(this, (void *)&count, noop_count, &target_entry);
-
-	return count;
-}
-unsigned long lockdep_count_forward_deps(struct lock_class *class)
-{
-	unsigned long ret, flags;
-	struct lock_list this;
-
-	this.parent = NULL;
-	this.class = class;
-
-	local_irq_save(flags);
-	arch_spin_lock(&lockdep_lock);
-	ret = __lockdep_count_forward_deps(&this);
-	arch_spin_unlock(&lockdep_lock);
-	local_irq_restore(flags);
-
-	return ret;
-}
-
-unsigned long __lockdep_count_backward_deps(struct lock_list *this)
-{
-	unsigned long  count = 0;
-	struct lock_list *uninitialized_var(target_entry);
-
-	__bfs_backwards(this, (void *)&count, noop_count, &target_entry);
-
-	return count;
-}
-
-unsigned long lockdep_count_backward_deps(struct lock_class *class)
-{
-	unsigned long ret, flags;
-	struct lock_list this;
-
-	this.parent = NULL;
-	this.class = class;
-
-	local_irq_save(flags);
-	arch_spin_lock(&lockdep_lock);
-	ret = __lockdep_count_backward_deps(&this);
-	arch_spin_unlock(&lockdep_lock);
-	local_irq_restore(flags);
-
-	return ret;
-}
-
-/*
- * Prove that the dependency graph starting at <entry> can not
- * lead to <target>. Print an error and return 0 if it does.
- */
-static noinline int
-check_noncircular(struct lock_list *root, struct lock_class *target,
-		struct lock_list **target_entry)
-{
-	int result;
-
-	debug_atomic_inc(nr_cyclic_checks);
-
-	result = __bfs_forwards(root, target, class_equal, target_entry);
-
-	return result;
-}
-
-#if defined(CONFIG_TRACE_IRQFLAGS) && defined(CONFIG_PROVE_LOCKING)
-/*
- * Forwards and backwards subgraph searching, for the purposes of
- * proving that two subgraphs can be connected by a new dependency
- * without creating any illegal irq-safe -> irq-unsafe lock dependency.
- */
-
-static inline int usage_match(struct lock_list *entry, void *bit)
-{
-	return entry->class->usage_mask & (1 << (enum lock_usage_bit)bit);
-}
-
-
-
-/*
- * Find a node in the forwards-direction dependency sub-graph starting
- * at @root->class that matches @bit.
- *
- * Return 0 if such a node exists in the subgraph, and put that node
- * into *@target_entry.
- *
- * Return 1 otherwise and keep *@target_entry unchanged.
- * Return <0 on error.
- */
-static int
-find_usage_forwards(struct lock_list *root, enum lock_usage_bit bit,
-			struct lock_list **target_entry)
-{
-	int result;
-
-	debug_atomic_inc(nr_find_usage_forwards_checks);
-
-	result = __bfs_forwards(root, (void *)bit, usage_match, target_entry);
-
-	return result;
-}
-
-/*
- * Find a node in the backwards-direction dependency sub-graph starting
- * at @root->class that matches @bit.
- *
- * Return 0 if such a node exists in the subgraph, and put that node
- * into *@target_entry.
- *
- * Return 1 otherwise and keep *@target_entry unchanged.
- * Return <0 on error.
- */
-static int
-find_usage_backwards(struct lock_list *root, enum lock_usage_bit bit,
-			struct lock_list **target_entry)
-{
-	int result;
-
-	debug_atomic_inc(nr_find_usage_backwards_checks);
-
-	result = __bfs_backwards(root, (void *)bit, usage_match, target_entry);
-
-	return result;
-}
-
-static void print_lock_class_header(struct lock_class *class, int depth)
-{
-	int bit;
-
-	printk("%*s->", depth, "");
-	print_lock_name(class);
-	printk(" ops: %lu", class->ops);
-	printk(" {\n");
-
-	for (bit = 0; bit < LOCK_USAGE_STATES; bit++) {
-		if (class->usage_mask & (1 << bit)) {
-			int len = depth;
-
-			len += printk("%*s   %s", depth, "", usage_str[bit]);
-			len += printk(" at:\n");
-			print_stack_trace(class->usage_traces + bit, len);
-		}
-	}
-	printk("%*s }\n", depth, "");
-
-	printk("%*s ... key      at: ",depth,"");
-	print_ip_sym((unsigned long)class->key);
-}
-
-/*
- * printk the shortest lock dependencies from @start to @end in reverse order:
- */
-static void __used
-print_shortest_lock_dependencies(struct lock_list *leaf,
-				struct lock_list *root)
-{
-	struct lock_list *entry = leaf;
-	int depth;
-
-	/*compute depth from generated tree by BFS*/
-	depth = get_lock_depth(leaf);
-
-	do {
-		print_lock_class_header(entry->class, depth);
-		printk("%*s ... acquired at:\n", depth, "");
-		print_stack_trace(&entry->trace, 2);
-		printk("\n");
-
-		if (depth == 0 && (entry != root)) {
-			printk("lockdep:%s bad path found in chain graph\n", __func__);
-			break;
-		}
-
-		entry = get_lock_parent(entry);
-		depth--;
-	} while (entry && (depth >= 0));
-
-	return;
-}
-
-static void
-print_irq_lock_scenario(struct lock_list *safe_entry,
-			struct lock_list *unsafe_entry,
-			struct lock_class *prev_class,
-			struct lock_class *next_class)
-{
-	struct lock_class *safe_class = safe_entry->class;
-	struct lock_class *unsafe_class = unsafe_entry->class;
-	struct lock_class *middle_class = prev_class;
-
-	if (middle_class == safe_class)
-		middle_class = next_class;
-
-	/*
-	 * A direct locking problem where unsafe_class lock is taken
-	 * directly by safe_class lock, then all we need to show
-	 * is the deadlock scenario, as it is obvious that the
-	 * unsafe lock is taken under the safe lock.
-	 *
-	 * But if there is a chain instead, where the safe lock takes
-	 * an intermediate lock (middle_class) where this lock is
-	 * not the same as the safe lock, then the lock chain is
-	 * used to describe the problem. Otherwise we would need
-	 * to show a different CPU case for each link in the chain
-	 * from the safe_class lock to the unsafe_class lock.
-	 */
-	if (middle_class != unsafe_class) {
-		printk("Chain exists of:\n  ");
-		__print_lock_name(safe_class);
-		printk(" --> ");
-		__print_lock_name(middle_class);
-		printk(" --> ");
-		__print_lock_name(unsafe_class);
-		printk("\n\n");
-	}
-
-	printk(" Possible interrupt unsafe locking scenario:\n\n");
-	printk("       CPU0                    CPU1\n");
-	printk("       ----                    ----\n");
-	printk("  lock(");
-	__print_lock_name(unsafe_class);
-	printk(");\n");
-	printk("                               local_irq_disable();\n");
-	printk("                               lock(");
-	__print_lock_name(safe_class);
-	printk(");\n");
-	printk("                               lock(");
-	__print_lock_name(middle_class);
-	printk(");\n");
-	printk("  <Interrupt>\n");
-	printk("    lock(");
-	__print_lock_name(safe_class);
-	printk(");\n");
-	printk("\n *** DEADLOCK ***\n\n");
-}
-
-static int
-print_bad_irq_dependency(struct task_struct *curr,
-			 struct lock_list *prev_root,
-			 struct lock_list *next_root,
-			 struct lock_list *backwards_entry,
-			 struct lock_list *forwards_entry,
-			 struct held_lock *prev,
-			 struct held_lock *next,
-			 enum lock_usage_bit bit1,
-			 enum lock_usage_bit bit2,
-			 const char *irqclass)
-{
-	if (!debug_locks_off_graph_unlock() || debug_locks_silent)
-		return 0;
-
-	printk("\n");
-	printk("======================================================\n");
-	printk("[ INFO: %s-safe -> %s-unsafe lock order detected ]\n",
-		irqclass, irqclass);
-	print_kernel_ident();
-	printk("------------------------------------------------------\n");
-	printk("%s/%d [HC%u[%lu]:SC%u[%lu]:HE%u:SE%u] is trying to acquire:\n",
-		curr->comm, task_pid_nr(curr),
-		curr->hardirq_context, hardirq_count() >> HARDIRQ_SHIFT,
-		curr->softirq_context, softirq_count() >> SOFTIRQ_SHIFT,
-		curr->hardirqs_enabled,
-		curr->softirqs_enabled);
-	print_lock(next);
-
-	printk("\nand this task is already holding:\n");
-	print_lock(prev);
-	printk("which would create a new lock dependency:\n");
-	print_lock_name(hlock_class(prev));
-	printk(" ->");
-	print_lock_name(hlock_class(next));
-	printk("\n");
-
-	printk("\nbut this new dependency connects a %s-irq-safe lock:\n",
-		irqclass);
-	print_lock_name(backwards_entry->class);
-	printk("\n... which became %s-irq-safe at:\n", irqclass);
-
-	print_stack_trace(backwards_entry->class->usage_traces + bit1, 1);
-
-	printk("\nto a %s-irq-unsafe lock:\n", irqclass);
-	print_lock_name(forwards_entry->class);
-	printk("\n... which became %s-irq-unsafe at:\n", irqclass);
-	printk("...");
-
-	print_stack_trace(forwards_entry->class->usage_traces + bit2, 1);
-
-	printk("\nother info that might help us debug this:\n\n");
-	print_irq_lock_scenario(backwards_entry, forwards_entry,
-				hlock_class(prev), hlock_class(next));
-
-	lockdep_print_held_locks(curr);
-
-	printk("\nthe dependencies between %s-irq-safe lock", irqclass);
-	printk(" and the holding lock:\n");
-	if (!save_trace(&prev_root->trace))
-		return 0;
-	print_shortest_lock_dependencies(backwards_entry, prev_root);
-
-	printk("\nthe dependencies between the lock to be acquired");
-	printk(" and %s-irq-unsafe lock:\n", irqclass);
-	if (!save_trace(&next_root->trace))
-		return 0;
-	print_shortest_lock_dependencies(forwards_entry, next_root);
-
-	printk("\nstack backtrace:\n");
-	dump_stack();
-
-	return 0;
-}
-
-static int
-check_usage(struct task_struct *curr, struct held_lock *prev,
-	    struct held_lock *next, enum lock_usage_bit bit_backwards,
-	    enum lock_usage_bit bit_forwards, const char *irqclass)
-{
-	int ret;
-	struct lock_list this, that;
-	struct lock_list *uninitialized_var(target_entry);
-	struct lock_list *uninitialized_var(target_entry1);
-
-	this.parent = NULL;
-
-	this.class = hlock_class(prev);
-	ret = find_usage_backwards(&this, bit_backwards, &target_entry);
-	if (ret < 0)
-		return print_bfs_bug(ret);
-	if (ret == 1)
-		return ret;
-
-	that.parent = NULL;
-	that.class = hlock_class(next);
-	ret = find_usage_forwards(&that, bit_forwards, &target_entry1);
-	if (ret < 0)
-		return print_bfs_bug(ret);
-	if (ret == 1)
-		return ret;
-
-	return print_bad_irq_dependency(curr, &this, &that,
-			target_entry, target_entry1,
-			prev, next,
-			bit_backwards, bit_forwards, irqclass);
-}
-
-static const char *state_names[] = {
-#define LOCKDEP_STATE(__STATE) \
-	__stringify(__STATE),
-#include "lockdep_states.h"
-#undef LOCKDEP_STATE
-};
-
-static const char *state_rnames[] = {
-#define LOCKDEP_STATE(__STATE) \
-	__stringify(__STATE)"-READ",
-#include "lockdep_states.h"
-#undef LOCKDEP_STATE
-};
-
-static inline const char *state_name(enum lock_usage_bit bit)
-{
-	return (bit & 1) ? state_rnames[bit >> 2] : state_names[bit >> 2];
-}
-
-static int exclusive_bit(int new_bit)
-{
-	/*
-	 * USED_IN
-	 * USED_IN_READ
-	 * ENABLED
-	 * ENABLED_READ
-	 *
-	 * bit 0 - write/read
-	 * bit 1 - used_in/enabled
-	 * bit 2+  state
-	 */
-
-	int state = new_bit & ~3;
-	int dir = new_bit & 2;
-
-	/*
-	 * keep state, bit flip the direction and strip read.
-	 */
-	return state | (dir ^ 2);
-}
-
-static int check_irq_usage(struct task_struct *curr, struct held_lock *prev,
-			   struct held_lock *next, enum lock_usage_bit bit)
-{
-	/*
-	 * Prove that the new dependency does not connect a hardirq-safe
-	 * lock with a hardirq-unsafe lock - to achieve this we search
-	 * the backwards-subgraph starting at <prev>, and the
-	 * forwards-subgraph starting at <next>:
-	 */
-	if (!check_usage(curr, prev, next, bit,
-			   exclusive_bit(bit), state_name(bit)))
-		return 0;
-
-	bit++; /* _READ */
-
-	/*
-	 * Prove that the new dependency does not connect a hardirq-safe-read
-	 * lock with a hardirq-unsafe lock - to achieve this we search
-	 * the backwards-subgraph starting at <prev>, and the
-	 * forwards-subgraph starting at <next>:
-	 */
-	if (!check_usage(curr, prev, next, bit,
-			   exclusive_bit(bit), state_name(bit)))
-		return 0;
-
-	return 1;
-}
-
-static int
-check_prev_add_irq(struct task_struct *curr, struct held_lock *prev,
-		struct held_lock *next)
-{
-#define LOCKDEP_STATE(__STATE)						\
-	if (!check_irq_usage(curr, prev, next, LOCK_USED_IN_##__STATE))	\
-		return 0;
-#include "lockdep_states.h"
-#undef LOCKDEP_STATE
-
-	return 1;
-}
-
-static void inc_chains(void)
-{
-	if (current->hardirq_context)
-		nr_hardirq_chains++;
-	else {
-		if (current->softirq_context)
-			nr_softirq_chains++;
-		else
-			nr_process_chains++;
-	}
-}
-
-#else
-
-static inline int
-check_prev_add_irq(struct task_struct *curr, struct held_lock *prev,
-		struct held_lock *next)
-{
-	return 1;
-}
-
-static inline void inc_chains(void)
-{
-	nr_process_chains++;
-}
-
-#endif
-
-static void
-print_deadlock_scenario(struct held_lock *nxt,
-			     struct held_lock *prv)
-{
-	struct lock_class *next = hlock_class(nxt);
-	struct lock_class *prev = hlock_class(prv);
-
-	printk(" Possible unsafe locking scenario:\n\n");
-	printk("       CPU0\n");
-	printk("       ----\n");
-	printk("  lock(");
-	__print_lock_name(prev);
-	printk(");\n");
-	printk("  lock(");
-	__print_lock_name(next);
-	printk(");\n");
-	printk("\n *** DEADLOCK ***\n\n");
-	printk(" May be due to missing lock nesting notation\n\n");
-}
-
-static int
-print_deadlock_bug(struct task_struct *curr, struct held_lock *prev,
-		   struct held_lock *next)
-{
-	if (!debug_locks_off_graph_unlock() || debug_locks_silent)
-		return 0;
-
-	printk("\n");
-	printk("=============================================\n");
-	printk("[ INFO: possible recursive locking detected ]\n");
-	print_kernel_ident();
-	printk("---------------------------------------------\n");
-	printk("%s/%d is trying to acquire lock:\n",
-		curr->comm, task_pid_nr(curr));
-	print_lock(next);
-	printk("\nbut task is already holding lock:\n");
-	print_lock(prev);
-
-	printk("\nother info that might help us debug this:\n");
-	print_deadlock_scenario(next, prev);
-	lockdep_print_held_locks(curr);
-
-	printk("\nstack backtrace:\n");
-	dump_stack();
-
-	return 0;
-}
-
-/*
- * Check whether we are holding such a class already.
- *
- * (Note that this has to be done separately, because the graph cannot
- * detect such classes of deadlocks.)
- *
- * Returns: 0 on deadlock detected, 1 on OK, 2 on recursive read
- */
-static int
-check_deadlock(struct task_struct *curr, struct held_lock *next,
-	       struct lockdep_map *next_instance, int read)
-{
-	struct held_lock *prev;
-	struct held_lock *nest = NULL;
-	int i;
-
-	for (i = 0; i < curr->lockdep_depth; i++) {
-		prev = curr->held_locks + i;
-
-		if (prev->instance == next->nest_lock)
-			nest = prev;
-
-		if (hlock_class(prev) != hlock_class(next))
-			continue;
-
-		/*
-		 * Allow read-after-read recursion of the same
-		 * lock class (i.e. read_lock(lock)+read_lock(lock)):
-		 */
-		if ((read == 2) && prev->read)
-			return 2;
-
-		/*
-		 * We're holding the nest_lock, which serializes this lock's
-		 * nesting behaviour.
-		 */
-		if (nest)
-			return 2;
-
-		return print_deadlock_bug(curr, prev, next);
-	}
-	return 1;
-}
-
-/*
- * There was a chain-cache miss, and we are about to add a new dependency
- * to a previous lock. We recursively validate the following rules:
- *
- *  - would the adding of the <prev> -> <next> dependency create a
- *    circular dependency in the graph? [== circular deadlock]
- *
- *  - does the new prev->next dependency connect any hardirq-safe lock
- *    (in the full backwards-subgraph starting at <prev>) with any
- *    hardirq-unsafe lock (in the full forwards-subgraph starting at
- *    <next>)? [== illegal lock inversion with hardirq contexts]
- *
- *  - does the new prev->next dependency connect any softirq-safe lock
- *    (in the full backwards-subgraph starting at <prev>) with any
- *    softirq-unsafe lock (in the full forwards-subgraph starting at
- *    <next>)? [== illegal lock inversion with softirq contexts]
- *
- * any of these scenarios could lead to a deadlock.
- *
- * Then if all the validations pass, we add the forwards and backwards
- * dependency.
- */
-static int
-check_prev_add(struct task_struct *curr, struct held_lock *prev,
-	       struct held_lock *next, int distance, int trylock_loop)
-{
-	struct lock_list *entry;
-	int ret;
-	struct lock_list this;
-	struct lock_list *uninitialized_var(target_entry);
-	/*
-	 * Static variable, serialized by the graph_lock().
-	 *
-	 * We use this static variable to save the stack trace in case
-	 * we call into this function multiple times due to encountering
-	 * trylocks in the held lock stack.
-	 */
-	static struct stack_trace trace;
-
-	/*
-	 * Prove that the new <prev> -> <next> dependency would not
-	 * create a circular dependency in the graph. (We do this by
-	 * forward-recursing into the graph starting at <next>, and
-	 * checking whether we can reach <prev>.)
-	 *
-	 * We are using global variables to control the recursion, to
-	 * keep the stackframe size of the recursive functions low:
-	 */
-	this.class = hlock_class(next);
-	this.parent = NULL;
-	ret = check_noncircular(&this, hlock_class(prev), &target_entry);
-	if (unlikely(!ret))
-		return print_circular_bug(&this, target_entry, next, prev);
-	else if (unlikely(ret < 0))
-		return print_bfs_bug(ret);
-
-	if (!check_prev_add_irq(curr, prev, next))
-		return 0;
-
-	/*
-	 * For recursive read-locks we do all the dependency checks,
-	 * but we dont store read-triggered dependencies (only
-	 * write-triggered dependencies). This ensures that only the
-	 * write-side dependencies matter, and that if for example a
-	 * write-lock never takes any other locks, then the reads are
-	 * equivalent to a NOP.
-	 */
-	if (next->read == 2 || prev->read == 2)
-		return 1;
-	/*
-	 * Is the <prev> -> <next> dependency already present?
-	 *
-	 * (this may occur even though this is a new chain: consider
-	 *  e.g. the L1 -> L2 -> L3 -> L4 and the L5 -> L1 -> L2 -> L3
-	 *  chains - the second one will be new, but L1 already has
-	 *  L2 added to its dependency list, due to the first chain.)
-	 */
-	list_for_each_entry(entry, &hlock_class(prev)->locks_after, entry) {
-		if (entry->class == hlock_class(next)) {
-			if (distance == 1)
-				entry->distance = 1;
-			return 2;
-		}
-	}
-
-	if (!trylock_loop && !save_trace(&trace))
-		return 0;
-
-	/*
-	 * Ok, all validations passed, add the new lock
-	 * to the previous lock's dependency list:
-	 */
-	ret = add_lock_to_list(hlock_class(prev), hlock_class(next),
-			       &hlock_class(prev)->locks_after,
-			       next->acquire_ip, distance, &trace);
-
-	if (!ret)
-		return 0;
-
-	ret = add_lock_to_list(hlock_class(next), hlock_class(prev),
-			       &hlock_class(next)->locks_before,
-			       next->acquire_ip, distance, &trace);
-	if (!ret)
-		return 0;
-
-	/*
-	 * Debugging printouts:
-	 */
-	if (verbose(hlock_class(prev)) || verbose(hlock_class(next))) {
-		graph_unlock();
-		printk("\n new dependency: ");
-		print_lock_name(hlock_class(prev));
-		printk(" => ");
-		print_lock_name(hlock_class(next));
-		printk("\n");
-		dump_stack();
-		return graph_lock();
-	}
-	return 1;
-}
-
-/*
- * Add the dependency to all directly-previous locks that are 'relevant'.
- * The ones that are relevant are (in increasing distance from curr):
- * all consecutive trylock entries and the final non-trylock entry - or
- * the end of this context's lock-chain - whichever comes first.
- */
-static int
-check_prevs_add(struct task_struct *curr, struct held_lock *next)
-{
-	int depth = curr->lockdep_depth;
-	int trylock_loop = 0;
-	struct held_lock *hlock;
-
-	/*
-	 * Debugging checks.
-	 *
-	 * Depth must not be zero for a non-head lock:
-	 */
-	if (!depth)
-		goto out_bug;
-	/*
-	 * At least two relevant locks must exist for this
-	 * to be a head:
-	 */
-	if (curr->held_locks[depth].irq_context !=
-			curr->held_locks[depth-1].irq_context)
-		goto out_bug;
-
-	for (;;) {
-		int distance = curr->lockdep_depth - depth + 1;
-		hlock = curr->held_locks + depth-1;
-		/*
-		 * Only non-recursive-read entries get new dependencies
-		 * added:
-		 */
-		if (hlock->read != 2) {
-			if (!check_prev_add(curr, hlock, next,
-						distance, trylock_loop))
-				return 0;
-			/*
-			 * Stop after the first non-trylock entry,
-			 * as non-trylock entries have added their
-			 * own direct dependencies already, so this
-			 * lock is connected to them indirectly:
-			 */
-			if (!hlock->trylock)
-				break;
-		}
-		depth--;
-		/*
-		 * End of lock-stack?
-		 */
-		if (!depth)
-			break;
-		/*
-		 * Stop the search if we cross into another context:
-		 */
-		if (curr->held_locks[depth].irq_context !=
-				curr->held_locks[depth-1].irq_context)
-			break;
-		trylock_loop = 1;
-	}
-	return 1;
-out_bug:
-	if (!debug_locks_off_graph_unlock())
-		return 0;
-
-	/*
-	 * Clearly we all shouldn't be here, but since we made it we
-	 * can reliable say we messed up our state. See the above two
-	 * gotos for reasons why we could possibly end up here.
-	 */
-	WARN_ON(1);
-
-	return 0;
-}
-
-unsigned long nr_lock_chains;
-struct lock_chain lock_chains[MAX_LOCKDEP_CHAINS];
-int nr_chain_hlocks;
-static u16 chain_hlocks[MAX_LOCKDEP_CHAIN_HLOCKS];
-
-struct lock_class *lock_chain_get_class(struct lock_chain *chain, int i)
-{
-	return lock_classes + chain_hlocks[chain->base + i];
-}
-
-/*
- * Look up a dependency chain. If the key is not present yet then
- * add it and return 1 - in this case the new dependency chain is
- * validated. If the key is already hashed, return 0.
- * (On return with 1 graph_lock is held.)
- */
-static inline int lookup_chain_cache(struct task_struct *curr,
-				     struct held_lock *hlock,
-				     u64 chain_key)
-{
-	struct lock_class *class = hlock_class(hlock);
-	struct list_head *hash_head = chainhashentry(chain_key);
-	struct lock_chain *chain;
-	struct held_lock *hlock_curr;
-	int i, j;
-
-	/*
-	 * We might need to take the graph lock, ensure we've got IRQs
-	 * disabled to make this an IRQ-safe lock.. for recursion reasons
-	 * lockdep won't complain about its own locking errors.
-	 */
-	if (DEBUG_LOCKS_WARN_ON(!irqs_disabled()))
-		return 0;
-	/*
-	 * We can walk it lock-free, because entries only get added
-	 * to the hash:
-	 */
-	list_for_each_entry(chain, hash_head, entry) {
-		if (chain->chain_key == chain_key) {
-cache_hit:
-			debug_atomic_inc(chain_lookup_hits);
-			if (very_verbose(class))
-				printk("\nhash chain already cached, key: "
-					"%016Lx tail class: [%p] %s\n",
-					(unsigned long long)chain_key,
-					class->key, class->name);
-			return 0;
-		}
-	}
-	if (very_verbose(class))
-		printk("\nnew hash chain, key: %016Lx tail class: [%p] %s\n",
-			(unsigned long long)chain_key, class->key, class->name);
-	/*
-	 * Allocate a new chain entry from the static array, and add
-	 * it to the hash:
-	 */
-	if (!graph_lock())
-		return 0;
-	/*
-	 * We have to walk the chain again locked - to avoid duplicates:
-	 */
-	list_for_each_entry(chain, hash_head, entry) {
-		if (chain->chain_key == chain_key) {
-			graph_unlock();
-			goto cache_hit;
-		}
-	}
-	if (unlikely(nr_lock_chains >= MAX_LOCKDEP_CHAINS)) {
-		if (!debug_locks_off_graph_unlock())
-			return 0;
-
-		print_lockdep_off("BUG: MAX_LOCKDEP_CHAINS too low!");
-		dump_stack();
-		return 0;
-	}
-	chain = lock_chains + nr_lock_chains++;
-	chain->chain_key = chain_key;
-	chain->irq_context = hlock->irq_context;
-	/* Find the first held_lock of current chain */
-	for (i = curr->lockdep_depth - 1; i >= 0; i--) {
-		hlock_curr = curr->held_locks + i;
-		if (hlock_curr->irq_context != hlock->irq_context)
-			break;
-	}
-	i++;
-	chain->depth = curr->lockdep_depth + 1 - i;
-	if (likely(nr_chain_hlocks + chain->depth <= MAX_LOCKDEP_CHAIN_HLOCKS)) {
-		chain->base = nr_chain_hlocks;
-		nr_chain_hlocks += chain->depth;
-		for (j = 0; j < chain->depth - 1; j++, i++) {
-			int lock_id = curr->held_locks[i].class_idx - 1;
-			chain_hlocks[chain->base + j] = lock_id;
-		}
-		chain_hlocks[chain->base + j] = class - lock_classes;
-	}
-	list_add_tail_rcu(&chain->entry, hash_head);
-	debug_atomic_inc(chain_lookup_misses);
-	inc_chains();
-
-	return 1;
-}
-
-static int validate_chain(struct task_struct *curr, struct lockdep_map *lock,
-		struct held_lock *hlock, int chain_head, u64 chain_key)
-{
-	/*
-	 * Trylock needs to maintain the stack of held locks, but it
-	 * does not add new dependencies, because trylock can be done
-	 * in any order.
-	 *
-	 * We look up the chain_key and do the O(N^2) check and update of
-	 * the dependencies only if this is a new dependency chain.
-	 * (If lookup_chain_cache() returns with 1 it acquires
-	 * graph_lock for us)
-	 */
-	if (!hlock->trylock && (hlock->check == 2) &&
-	    lookup_chain_cache(curr, hlock, chain_key)) {
-		/*
-		 * Check whether last held lock:
-		 *
-		 * - is irq-safe, if this lock is irq-unsafe
-		 * - is softirq-safe, if this lock is hardirq-unsafe
-		 *
-		 * And check whether the new lock's dependency graph
-		 * could lead back to the previous lock.
-		 *
-		 * any of these scenarios could lead to a deadlock. If
-		 * All validations
-		 */
-		int ret = check_deadlock(curr, hlock, lock, hlock->read);
-
-		if (!ret)
-			return 0;
-		/*
-		 * Mark recursive read, as we jump over it when
-		 * building dependencies (just like we jump over
-		 * trylock entries):
-		 */
-		if (ret == 2)
-			hlock->read = 2;
-		/*
-		 * Add dependency only if this lock is not the head
-		 * of the chain, and if it's not a secondary read-lock:
-		 */
-		if (!chain_head && ret != 2)
-			if (!check_prevs_add(curr, hlock))
-				return 0;
-		graph_unlock();
-	} else
-		/* after lookup_chain_cache(): */
-		if (unlikely(!debug_locks))
-			return 0;
-
-	return 1;
-}
-#else
-static inline int validate_chain(struct task_struct *curr,
-	       	struct lockdep_map *lock, struct held_lock *hlock,
-		int chain_head, u64 chain_key)
-{
-	return 1;
-}
-#endif
-
-/*
- * We are building curr_chain_key incrementally, so double-check
- * it from scratch, to make sure that it's done correctly:
- */
-static void check_chain_key(struct task_struct *curr)
-{
-#ifdef CONFIG_DEBUG_LOCKDEP
-	struct held_lock *hlock, *prev_hlock = NULL;
-	unsigned int i, id;
-	u64 chain_key = 0;
-
-	for (i = 0; i < curr->lockdep_depth; i++) {
-		hlock = curr->held_locks + i;
-		if (chain_key != hlock->prev_chain_key) {
-			debug_locks_off();
-			/*
-			 * We got mighty confused, our chain keys don't match
-			 * with what we expect, someone trample on our task state?
-			 */
-			WARN(1, "hm#1, depth: %u [%u], %016Lx != %016Lx\n",
-				curr->lockdep_depth, i,
-				(unsigned long long)chain_key,
-				(unsigned long long)hlock->prev_chain_key);
-			return;
-		}
-		id = hlock->class_idx - 1;
-		/*
-		 * Whoops ran out of static storage again?
-		 */
-		if (DEBUG_LOCKS_WARN_ON(id >= MAX_LOCKDEP_KEYS))
-			return;
-
-		if (prev_hlock && (prev_hlock->irq_context !=
-							hlock->irq_context))
-			chain_key = 0;
-		chain_key = iterate_chain_key(chain_key, id);
-		prev_hlock = hlock;
-	}
-	if (chain_key != curr->curr_chain_key) {
-		debug_locks_off();
-		/*
-		 * More smoking hash instead of calculating it, damn see these
-		 * numbers float.. I bet that a pink elephant stepped on my memory.
-		 */
-		WARN(1, "hm#2, depth: %u [%u], %016Lx != %016Lx\n",
-			curr->lockdep_depth, i,
-			(unsigned long long)chain_key,
-			(unsigned long long)curr->curr_chain_key);
-	}
-#endif
-}
-
-static void
-print_usage_bug_scenario(struct held_lock *lock)
-{
-	struct lock_class *class = hlock_class(lock);
-
-	printk(" Possible unsafe locking scenario:\n\n");
-	printk("       CPU0\n");
-	printk("       ----\n");
-	printk("  lock(");
-	__print_lock_name(class);
-	printk(");\n");
-	printk("  <Interrupt>\n");
-	printk("    lock(");
-	__print_lock_name(class);
-	printk(");\n");
-	printk("\n *** DEADLOCK ***\n\n");
-}
-
-static int
-print_usage_bug(struct task_struct *curr, struct held_lock *this,
-		enum lock_usage_bit prev_bit, enum lock_usage_bit new_bit)
-{
-	if (!debug_locks_off_graph_unlock() || debug_locks_silent)
-		return 0;
-
-	printk("\n");
-	printk("=================================\n");
-	printk("[ INFO: inconsistent lock state ]\n");
-	print_kernel_ident();
-	printk("---------------------------------\n");
-
-	printk("inconsistent {%s} -> {%s} usage.\n",
-		usage_str[prev_bit], usage_str[new_bit]);
-
-	printk("%s/%d [HC%u[%lu]:SC%u[%lu]:HE%u:SE%u] takes:\n",
-		curr->comm, task_pid_nr(curr),
-		trace_hardirq_context(curr), hardirq_count() >> HARDIRQ_SHIFT,
-		trace_softirq_context(curr), softirq_count() >> SOFTIRQ_SHIFT,
-		trace_hardirqs_enabled(curr),
-		trace_softirqs_enabled(curr));
-	print_lock(this);
-
-	printk("{%s} state was registered at:\n", usage_str[prev_bit]);
-	print_stack_trace(hlock_class(this)->usage_traces + prev_bit, 1);
-
-	print_irqtrace_events(curr);
-	printk("\nother info that might help us debug this:\n");
-	print_usage_bug_scenario(this);
-
-	lockdep_print_held_locks(curr);
-
-	printk("\nstack backtrace:\n");
-	dump_stack();
-
-	return 0;
-}
-
-/*
- * Print out an error if an invalid bit is set:
- */
-static inline int
-valid_state(struct task_struct *curr, struct held_lock *this,
-	    enum lock_usage_bit new_bit, enum lock_usage_bit bad_bit)
-{
-	if (unlikely(hlock_class(this)->usage_mask & (1 << bad_bit)))
-		return print_usage_bug(curr, this, bad_bit, new_bit);
-	return 1;
-}
-
-static int mark_lock(struct task_struct *curr, struct held_lock *this,
-		     enum lock_usage_bit new_bit);
-
-#if defined(CONFIG_TRACE_IRQFLAGS) && defined(CONFIG_PROVE_LOCKING)
-
-/*
- * print irq inversion bug:
- */
-static int
-print_irq_inversion_bug(struct task_struct *curr,
-			struct lock_list *root, struct lock_list *other,
-			struct held_lock *this, int forwards,
-			const char *irqclass)
-{
-	struct lock_list *entry = other;
-	struct lock_list *middle = NULL;
-	int depth;
-
-	if (!debug_locks_off_graph_unlock() || debug_locks_silent)
-		return 0;
-
-	printk("\n");
-	printk("=========================================================\n");
-	printk("[ INFO: possible irq lock inversion dependency detected ]\n");
-	print_kernel_ident();
-	printk("---------------------------------------------------------\n");
-	printk("%s/%d just changed the state of lock:\n",
-		curr->comm, task_pid_nr(curr));
-	print_lock(this);
-	if (forwards)
-		printk("but this lock took another, %s-unsafe lock in the past:\n", irqclass);
-	else
-		printk("but this lock was taken by another, %s-safe lock in the past:\n", irqclass);
-	print_lock_name(other->class);
-	printk("\n\nand interrupts could create inverse lock ordering between them.\n\n");
-
-	printk("\nother info that might help us debug this:\n");
-
-	/* Find a middle lock (if one exists) */
-	depth = get_lock_depth(other);
-	do {
-		if (depth == 0 && (entry != root)) {
-			printk("lockdep:%s bad path found in chain graph\n", __func__);
-			break;
-		}
-		middle = entry;
-		entry = get_lock_parent(entry);
-		depth--;
-	} while (entry && entry != root && (depth >= 0));
-	if (forwards)
-		print_irq_lock_scenario(root, other,
-			middle ? middle->class : root->class, other->class);
-	else
-		print_irq_lock_scenario(other, root,
-			middle ? middle->class : other->class, root->class);
-
-	lockdep_print_held_locks(curr);
-
-	printk("\nthe shortest dependencies between 2nd lock and 1st lock:\n");
-	if (!save_trace(&root->trace))
-		return 0;
-	print_shortest_lock_dependencies(other, root);
-
-	printk("\nstack backtrace:\n");
-	dump_stack();
-
-	return 0;
-}
-
-/*
- * Prove that in the forwards-direction subgraph starting at <this>
- * there is no lock matching <mask>:
- */
-static int
-check_usage_forwards(struct task_struct *curr, struct held_lock *this,
-		     enum lock_usage_bit bit, const char *irqclass)
-{
-	int ret;
-	struct lock_list root;
-	struct lock_list *uninitialized_var(target_entry);
-
-	root.parent = NULL;
-	root.class = hlock_class(this);
-	ret = find_usage_forwards(&root, bit, &target_entry);
-	if (ret < 0)
-		return print_bfs_bug(ret);
-	if (ret == 1)
-		return ret;
-
-	return print_irq_inversion_bug(curr, &root, target_entry,
-					this, 1, irqclass);
-}
-
-/*
- * Prove that in the backwards-direction subgraph starting at <this>
- * there is no lock matching <mask>:
- */
-static int
-check_usage_backwards(struct task_struct *curr, struct held_lock *this,
-		      enum lock_usage_bit bit, const char *irqclass)
-{
-	int ret;
-	struct lock_list root;
-	struct lock_list *uninitialized_var(target_entry);
-
-	root.parent = NULL;
-	root.class = hlock_class(this);
-	ret = find_usage_backwards(&root, bit, &target_entry);
-	if (ret < 0)
-		return print_bfs_bug(ret);
-	if (ret == 1)
-		return ret;
-
-	return print_irq_inversion_bug(curr, &root, target_entry,
-					this, 0, irqclass);
-}
-
-void print_irqtrace_events(struct task_struct *curr)
-{
-	printk("irq event stamp: %u\n", curr->irq_events);
-	printk("hardirqs last  enabled at (%u): ", curr->hardirq_enable_event);
-	print_ip_sym(curr->hardirq_enable_ip);
-	printk("hardirqs last disabled at (%u): ", curr->hardirq_disable_event);
-	print_ip_sym(curr->hardirq_disable_ip);
-	printk("softirqs last  enabled at (%u): ", curr->softirq_enable_event);
-	print_ip_sym(curr->softirq_enable_ip);
-	printk("softirqs last disabled at (%u): ", curr->softirq_disable_event);
-	print_ip_sym(curr->softirq_disable_ip);
-}
-
-static int HARDIRQ_verbose(struct lock_class *class)
-{
-#if HARDIRQ_VERBOSE
-	return class_filter(class);
-#endif
-	return 0;
-}
-
-static int SOFTIRQ_verbose(struct lock_class *class)
-{
-#if SOFTIRQ_VERBOSE
-	return class_filter(class);
-#endif
-	return 0;
-}
-
-static int RECLAIM_FS_verbose(struct lock_class *class)
-{
-#if RECLAIM_VERBOSE
-	return class_filter(class);
-#endif
-	return 0;
-}
-
-#define STRICT_READ_CHECKS	1
-
-static int (*state_verbose_f[])(struct lock_class *class) = {
-#define LOCKDEP_STATE(__STATE) \
-	__STATE##_verbose,
-#include "lockdep_states.h"
-#undef LOCKDEP_STATE
-};
-
-static inline int state_verbose(enum lock_usage_bit bit,
-				struct lock_class *class)
-{
-	return state_verbose_f[bit >> 2](class);
-}
-
-typedef int (*check_usage_f)(struct task_struct *, struct held_lock *,
-			     enum lock_usage_bit bit, const char *name);
-
-static int
-mark_lock_irq(struct task_struct *curr, struct held_lock *this,
-		enum lock_usage_bit new_bit)
-{
-	int excl_bit = exclusive_bit(new_bit);
-	int read = new_bit & 1;
-	int dir = new_bit & 2;
-
-	/*
-	 * mark USED_IN has to look forwards -- to ensure no dependency
-	 * has ENABLED state, which would allow recursion deadlocks.
-	 *
-	 * mark ENABLED has to look backwards -- to ensure no dependee
-	 * has USED_IN state, which, again, would allow  recursion deadlocks.
-	 */
-	check_usage_f usage = dir ?
-		check_usage_backwards : check_usage_forwards;
-
-	/*
-	 * Validate that this particular lock does not have conflicting
-	 * usage states.
-	 */
-	if (!valid_state(curr, this, new_bit, excl_bit))
-		return 0;
-
-	/*
-	 * Validate that the lock dependencies don't have conflicting usage
-	 * states.
-	 */
-	if ((!read || !dir || STRICT_READ_CHECKS) &&
-			!usage(curr, this, excl_bit, state_name(new_bit & ~1)))
-		return 0;
-
-	/*
-	 * Check for read in write conflicts
-	 */
-	if (!read) {
-		if (!valid_state(curr, this, new_bit, excl_bit + 1))
-			return 0;
-
-		if (STRICT_READ_CHECKS &&
-			!usage(curr, this, excl_bit + 1,
-				state_name(new_bit + 1)))
-			return 0;
-	}
-
-	if (state_verbose(new_bit, hlock_class(this)))
-		return 2;
-
-	return 1;
-}
-
-enum mark_type {
-#define LOCKDEP_STATE(__STATE)	__STATE,
-#include "lockdep_states.h"
-#undef LOCKDEP_STATE
-};
-
-/*
- * Mark all held locks with a usage bit:
- */
-static int
-mark_held_locks(struct task_struct *curr, enum mark_type mark)
-{
-	enum lock_usage_bit usage_bit;
-	struct held_lock *hlock;
-	int i;
-
-	for (i = 0; i < curr->lockdep_depth; i++) {
-		hlock = curr->held_locks + i;
-
-		usage_bit = 2 + (mark << 2); /* ENABLED */
-		if (hlock->read)
-			usage_bit += 1; /* READ */
-
-		BUG_ON(usage_bit >= LOCK_USAGE_STATES);
-
-		if (hlock_class(hlock)->key == __lockdep_no_validate__.subkeys)
-			continue;
-
-		if (!mark_lock(curr, hlock, usage_bit))
-			return 0;
-	}
-
-	return 1;
-}
-
-/*
- * Hardirqs will be enabled:
- */
-static void __trace_hardirqs_on_caller(unsigned long ip)
-{
-	struct task_struct *curr = current;
-
-	/* we'll do an OFF -> ON transition: */
-	curr->hardirqs_enabled = 1;
-
-	/*
-	 * We are going to turn hardirqs on, so set the
-	 * usage bit for all held locks:
-	 */
-	if (!mark_held_locks(curr, HARDIRQ))
-		return;
-	/*
-	 * If we have softirqs enabled, then set the usage
-	 * bit for all held locks. (disabled hardirqs prevented
-	 * this bit from being set before)
-	 */
-	if (curr->softirqs_enabled)
-		if (!mark_held_locks(curr, SOFTIRQ))
-			return;
-
-	curr->hardirq_enable_ip = ip;
-	curr->hardirq_enable_event = ++curr->irq_events;
-	debug_atomic_inc(hardirqs_on_events);
-}
-
-void trace_hardirqs_on_caller(unsigned long ip)
-{
-	time_hardirqs_on(CALLER_ADDR0, ip);
-
-	if (unlikely(!debug_locks || current->lockdep_recursion))
-		return;
-
-	if (unlikely(current->hardirqs_enabled)) {
-		/*
-		 * Neither irq nor preemption are disabled here
-		 * so this is racy by nature but losing one hit
-		 * in a stat is not a big deal.
-		 */
-		__debug_atomic_inc(redundant_hardirqs_on);
-		return;
-	}
-
-	/*
-	 * We're enabling irqs and according to our state above irqs weren't
-	 * already enabled, yet we find the hardware thinks they are in fact
-	 * enabled.. someone messed up their IRQ state tracing.
-	 */
-	if (DEBUG_LOCKS_WARN_ON(!irqs_disabled()))
-		return;
-
-	/*
-	 * See the fine text that goes along with this variable definition.
-	 */
-	if (DEBUG_LOCKS_WARN_ON(unlikely(early_boot_irqs_disabled)))
-		return;
-
-	/*
-	 * Can't allow enabling interrupts while in an interrupt handler,
-	 * that's general bad form and such. Recursion, limited stack etc..
-	 */
-	if (DEBUG_LOCKS_WARN_ON(current->hardirq_context))
-		return;
-
-	current->lockdep_recursion = 1;
-	__trace_hardirqs_on_caller(ip);
-	current->lockdep_recursion = 0;
-}
-EXPORT_SYMBOL(trace_hardirqs_on_caller);
-
-void trace_hardirqs_on(void)
-{
-	trace_hardirqs_on_caller(CALLER_ADDR0);
-}
-EXPORT_SYMBOL(trace_hardirqs_on);
-
-/*
- * Hardirqs were disabled:
- */
-void trace_hardirqs_off_caller(unsigned long ip)
-{
-	struct task_struct *curr = current;
-
-	time_hardirqs_off(CALLER_ADDR0, ip);
-
-	if (unlikely(!debug_locks || current->lockdep_recursion))
-		return;
-
-	/*
-	 * So we're supposed to get called after you mask local IRQs, but for
-	 * some reason the hardware doesn't quite think you did a proper job.
-	 */
-	if (DEBUG_LOCKS_WARN_ON(!irqs_disabled()))
-		return;
-
-	if (curr->hardirqs_enabled) {
-		/*
-		 * We have done an ON -> OFF transition:
-		 */
-		curr->hardirqs_enabled = 0;
-		curr->hardirq_disable_ip = ip;
-		curr->hardirq_disable_event = ++curr->irq_events;
-		debug_atomic_inc(hardirqs_off_events);
-	} else
-		debug_atomic_inc(redundant_hardirqs_off);
-}
-EXPORT_SYMBOL(trace_hardirqs_off_caller);
-
-void trace_hardirqs_off(void)
-{
-	trace_hardirqs_off_caller(CALLER_ADDR0);
-}
-EXPORT_SYMBOL(trace_hardirqs_off);
-
-/*
- * Softirqs will be enabled:
- */
-void trace_softirqs_on(unsigned long ip)
-{
-	struct task_struct *curr = current;
-
-	if (unlikely(!debug_locks || current->lockdep_recursion))
-		return;
-
-	/*
-	 * We fancy IRQs being disabled here, see softirq.c, avoids
-	 * funny state and nesting things.
-	 */
-	if (DEBUG_LOCKS_WARN_ON(!irqs_disabled()))
-		return;
-
-	if (curr->softirqs_enabled) {
-		debug_atomic_inc(redundant_softirqs_on);
-		return;
-	}
-
-	current->lockdep_recursion = 1;
-	/*
-	 * We'll do an OFF -> ON transition:
-	 */
-	curr->softirqs_enabled = 1;
-	curr->softirq_enable_ip = ip;
-	curr->softirq_enable_event = ++curr->irq_events;
-	debug_atomic_inc(softirqs_on_events);
-	/*
-	 * We are going to turn softirqs on, so set the
-	 * usage bit for all held locks, if hardirqs are
-	 * enabled too:
-	 */
-	if (curr->hardirqs_enabled)
-		mark_held_locks(curr, SOFTIRQ);
-	current->lockdep_recursion = 0;
-}
-
-/*
- * Softirqs were disabled:
- */
-void trace_softirqs_off(unsigned long ip)
-{
-	struct task_struct *curr = current;
-
-	if (unlikely(!debug_locks || current->lockdep_recursion))
-		return;
-
-	/*
-	 * We fancy IRQs being disabled here, see softirq.c
-	 */
-	if (DEBUG_LOCKS_WARN_ON(!irqs_disabled()))
-		return;
-
-	if (curr->softirqs_enabled) {
-		/*
-		 * We have done an ON -> OFF transition:
-		 */
-		curr->softirqs_enabled = 0;
-		curr->softirq_disable_ip = ip;
-		curr->softirq_disable_event = ++curr->irq_events;
-		debug_atomic_inc(softirqs_off_events);
-		/*
-		 * Whoops, we wanted softirqs off, so why aren't they?
-		 */
-		DEBUG_LOCKS_WARN_ON(!softirq_count());
-	} else
-		debug_atomic_inc(redundant_softirqs_off);
-}
-
-static void __lockdep_trace_alloc(gfp_t gfp_mask, unsigned long flags)
-{
-	struct task_struct *curr = current;
-
-	if (unlikely(!debug_locks))
-		return;
-
-	/* no reclaim without waiting on it */
-	if (!(gfp_mask & __GFP_WAIT))
-		return;
-
-	/* this guy won't enter reclaim */
-	if ((curr->flags & PF_MEMALLOC) && !(gfp_mask & __GFP_NOMEMALLOC))
-		return;
-
-	/* We're only interested __GFP_FS allocations for now */
-	if (!(gfp_mask & __GFP_FS))
-		return;
-
-	/*
-	 * Oi! Can't be having __GFP_FS allocations with IRQs disabled.
-	 */
-	if (DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags)))
-		return;
-
-	mark_held_locks(curr, RECLAIM_FS);
-}
-
-static void check_flags(unsigned long flags);
-
-void lockdep_trace_alloc(gfp_t gfp_mask)
-{
-	unsigned long flags;
-
-	if (unlikely(current->lockdep_recursion))
-		return;
-
-	raw_local_irq_save(flags);
-	check_flags(flags);
-	current->lockdep_recursion = 1;
-	__lockdep_trace_alloc(gfp_mask, flags);
-	current->lockdep_recursion = 0;
-	raw_local_irq_restore(flags);
-}
-
-static int mark_irqflags(struct task_struct *curr, struct held_lock *hlock)
-{
-	/*
-	 * If non-trylock use in a hardirq or softirq context, then
-	 * mark the lock as used in these contexts:
-	 */
-	if (!hlock->trylock) {
-		if (hlock->read) {
-			if (curr->hardirq_context)
-				if (!mark_lock(curr, hlock,
-						LOCK_USED_IN_HARDIRQ_READ))
-					return 0;
-			if (curr->softirq_context)
-				if (!mark_lock(curr, hlock,
-						LOCK_USED_IN_SOFTIRQ_READ))
-					return 0;
-		} else {
-			if (curr->hardirq_context)
-				if (!mark_lock(curr, hlock, LOCK_USED_IN_HARDIRQ))
-					return 0;
-			if (curr->softirq_context)
-				if (!mark_lock(curr, hlock, LOCK_USED_IN_SOFTIRQ))
-					return 0;
-		}
-	}
-	if (!hlock->hardirqs_off) {
-		if (hlock->read) {
-			if (!mark_lock(curr, hlock,
-					LOCK_ENABLED_HARDIRQ_READ))
-				return 0;
-			if (curr->softirqs_enabled)
-				if (!mark_lock(curr, hlock,
-						LOCK_ENABLED_SOFTIRQ_READ))
-					return 0;
-		} else {
-			if (!mark_lock(curr, hlock,
-					LOCK_ENABLED_HARDIRQ))
-				return 0;
-			if (curr->softirqs_enabled)
-				if (!mark_lock(curr, hlock,
-						LOCK_ENABLED_SOFTIRQ))
-					return 0;
-		}
-	}
-
-	/*
-	 * We reuse the irq context infrastructure more broadly as a general
-	 * context checking code. This tests GFP_FS recursion (a lock taken
-	 * during reclaim for a GFP_FS allocation is held over a GFP_FS
-	 * allocation).
-	 */
-	if (!hlock->trylock && (curr->lockdep_reclaim_gfp & __GFP_FS)) {
-		if (hlock->read) {
-			if (!mark_lock(curr, hlock, LOCK_USED_IN_RECLAIM_FS_READ))
-					return 0;
-		} else {
-			if (!mark_lock(curr, hlock, LOCK_USED_IN_RECLAIM_FS))
-					return 0;
-		}
-	}
-
-	return 1;
-}
-
-static int separate_irq_context(struct task_struct *curr,
-		struct held_lock *hlock)
-{
-	unsigned int depth = curr->lockdep_depth;
-
-	/*
-	 * Keep track of points where we cross into an interrupt context:
-	 */
-	hlock->irq_context = 2*(curr->hardirq_context ? 1 : 0) +
-				curr->softirq_context;
-	if (depth) {
-		struct held_lock *prev_hlock;
-
-		prev_hlock = curr->held_locks + depth-1;
-		/*
-		 * If we cross into another context, reset the
-		 * hash key (this also prevents the checking and the
-		 * adding of the dependency to 'prev'):
-		 */
-		if (prev_hlock->irq_context != hlock->irq_context)
-			return 1;
-	}
-	return 0;
-}
-
-#else /* defined(CONFIG_TRACE_IRQFLAGS) && defined(CONFIG_PROVE_LOCKING) */
-
-static inline
-int mark_lock_irq(struct task_struct *curr, struct held_lock *this,
-		enum lock_usage_bit new_bit)
-{
-	WARN_ON(1); /* Impossible innit? when we don't have TRACE_IRQFLAG */
-	return 1;
-}
-
-static inline int mark_irqflags(struct task_struct *curr,
-		struct held_lock *hlock)
-{
-	return 1;
-}
-
-static inline int separate_irq_context(struct task_struct *curr,
-		struct held_lock *hlock)
-{
-	return 0;
-}
-
-void lockdep_trace_alloc(gfp_t gfp_mask)
-{
-}
-
-#endif /* defined(CONFIG_TRACE_IRQFLAGS) && defined(CONFIG_PROVE_LOCKING) */
-
-/*
- * Mark a lock with a usage bit, and validate the state transition:
- */
-static int mark_lock(struct task_struct *curr, struct held_lock *this,
-			     enum lock_usage_bit new_bit)
-{
-	unsigned int new_mask = 1 << new_bit, ret = 1;
-
-	/*
-	 * If already set then do not dirty the cacheline,
-	 * nor do any checks:
-	 */
-	if (likely(hlock_class(this)->usage_mask & new_mask))
-		return 1;
-
-	if (!graph_lock())
-		return 0;
-	/*
-	 * Make sure we didn't race:
-	 */
-	if (unlikely(hlock_class(this)->usage_mask & new_mask)) {
-		graph_unlock();
-		return 1;
-	}
-
-	hlock_class(this)->usage_mask |= new_mask;
-
-	if (!save_trace(hlock_class(this)->usage_traces + new_bit))
-		return 0;
-
-	switch (new_bit) {
-#define LOCKDEP_STATE(__STATE)			\
-	case LOCK_USED_IN_##__STATE:		\
-	case LOCK_USED_IN_##__STATE##_READ:	\
-	case LOCK_ENABLED_##__STATE:		\
-	case LOCK_ENABLED_##__STATE##_READ:
-#include "lockdep_states.h"
-#undef LOCKDEP_STATE
-		ret = mark_lock_irq(curr, this, new_bit);
-		if (!ret)
-			return 0;
-		break;
-	case LOCK_USED:
-		debug_atomic_dec(nr_unused_locks);
-		break;
-	default:
-		if (!debug_locks_off_graph_unlock())
-			return 0;
-		WARN_ON(1);
-		return 0;
-	}
-
-	graph_unlock();
-
-	/*
-	 * We must printk outside of the graph_lock:
-	 */
-	if (ret == 2) {
-		printk("\nmarked lock as {%s}:\n", usage_str[new_bit]);
-		print_lock(this);
-		print_irqtrace_events(curr);
-		dump_stack();
-	}
-
-	return ret;
-}
-
-/*
- * Initialize a lock instance's lock-class mapping info:
- */
-void lockdep_init_map(struct lockdep_map *lock, const char *name,
-		      struct lock_class_key *key, int subclass)
-{
-	int i;
-
-	kmemcheck_mark_initialized(lock, sizeof(*lock));
-
-	for (i = 0; i < NR_LOCKDEP_CACHING_CLASSES; i++)
-		lock->class_cache[i] = NULL;
-
-#ifdef CONFIG_LOCK_STAT
-	lock->cpu = raw_smp_processor_id();
-#endif
-
-	/*
-	 * Can't be having no nameless bastards around this place!
-	 */
-	if (DEBUG_LOCKS_WARN_ON(!name)) {
-		lock->name = "NULL";
-		return;
-	}
-
-	lock->name = name;
-
-	/*
-	 * No key, no joy, we need to hash something.
-	 */
-	if (DEBUG_LOCKS_WARN_ON(!key))
-		return;
-	/*
-	 * Sanity check, the lock-class key must be persistent:
-	 */
-	if (!static_obj(key)) {
-		printk("BUG: key %p not in .data!\n", key);
-		/*
-		 * What it says above ^^^^^, I suggest you read it.
-		 */
-		DEBUG_LOCKS_WARN_ON(1);
-		return;
-	}
-	lock->key = key;
-
-	if (unlikely(!debug_locks))
-		return;
-
-	if (subclass)
-		register_lock_class(lock, subclass, 1);
-}
-EXPORT_SYMBOL_GPL(lockdep_init_map);
-
-struct lock_class_key __lockdep_no_validate__;
-EXPORT_SYMBOL_GPL(__lockdep_no_validate__);
-
-static int
-print_lock_nested_lock_not_held(struct task_struct *curr,
-				struct held_lock *hlock,
-				unsigned long ip)
-{
-	if (!debug_locks_off())
-		return 0;
-	if (debug_locks_silent)
-		return 0;
-
-	printk("\n");
-	printk("==================================\n");
-	printk("[ BUG: Nested lock was not taken ]\n");
-	print_kernel_ident();
-	printk("----------------------------------\n");
-
-	printk("%s/%d is trying to lock:\n", curr->comm, task_pid_nr(curr));
-	print_lock(hlock);
-
-	printk("\nbut this task is not holding:\n");
-	printk("%s\n", hlock->nest_lock->name);
-
-	printk("\nstack backtrace:\n");
-	dump_stack();
-
-	printk("\nother info that might help us debug this:\n");
-	lockdep_print_held_locks(curr);
-
-	printk("\nstack backtrace:\n");
-	dump_stack();
-
-	return 0;
-}
-
-static int __lock_is_held(struct lockdep_map *lock);
-
-/*
- * This gets called for every mutex_lock*()/spin_lock*() operation.
- * We maintain the dependency maps and validate the locking attempt:
- */
-static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass,
-			  int trylock, int read, int check, int hardirqs_off,
-			  struct lockdep_map *nest_lock, unsigned long ip,
-			  int references)
-{
-	struct task_struct *curr = current;
-	struct lock_class *class = NULL;
-	struct held_lock *hlock;
-	unsigned int depth, id;
-	int chain_head = 0;
-	int class_idx;
-	u64 chain_key;
-
-	if (!prove_locking)
-		check = 1;
-
-	if (unlikely(!debug_locks))
-		return 0;
-
-	/*
-	 * Lockdep should run with IRQs disabled, otherwise we could
-	 * get an interrupt which would want to take locks, which would
-	 * end up in lockdep and have you got a head-ache already?
-	 */
-	if (DEBUG_LOCKS_WARN_ON(!irqs_disabled()))
-		return 0;
-
-	if (lock->key == &__lockdep_no_validate__)
-		check = 1;
-
-	if (subclass < NR_LOCKDEP_CACHING_CLASSES)
-		class = lock->class_cache[subclass];
-	/*
-	 * Not cached?
-	 */
-	if (unlikely(!class)) {
-		class = register_lock_class(lock, subclass, 0);
-		if (!class)
-			return 0;
-	}
-	atomic_inc((atomic_t *)&class->ops);
-	if (very_verbose(class)) {
-		printk("\nacquire class [%p] %s", class->key, class->name);
-		if (class->name_version > 1)
-			printk("#%d", class->name_version);
-		printk("\n");
-		dump_stack();
-	}
-
-	/*
-	 * Add the lock to the list of currently held locks.
-	 * (we dont increase the depth just yet, up until the
-	 * dependency checks are done)
-	 */
-	depth = curr->lockdep_depth;
-	/*
-	 * Ran out of static storage for our per-task lock stack again have we?
-	 */
-	if (DEBUG_LOCKS_WARN_ON(depth >= MAX_LOCK_DEPTH))
-		return 0;
-
-	class_idx = class - lock_classes + 1;
-
-	if (depth) {
-		hlock = curr->held_locks + depth - 1;
-		if (hlock->class_idx == class_idx && nest_lock) {
-			if (hlock->references)
-				hlock->references++;
-			else
-				hlock->references = 2;
-
-			return 1;
-		}
-	}
-
-	hlock = curr->held_locks + depth;
-	/*
-	 * Plain impossible, we just registered it and checked it weren't no
-	 * NULL like.. I bet this mushroom I ate was good!
-	 */
-	if (DEBUG_LOCKS_WARN_ON(!class))
-		return 0;
-	hlock->class_idx = class_idx;
-	hlock->acquire_ip = ip;
-	hlock->instance = lock;
-	hlock->nest_lock = nest_lock;
-	hlock->trylock = trylock;
-	hlock->read = read;
-	hlock->check = check;
-	hlock->hardirqs_off = !!hardirqs_off;
-	hlock->references = references;
-#ifdef CONFIG_LOCK_STAT
-	hlock->waittime_stamp = 0;
-	hlock->holdtime_stamp = lockstat_clock();
-#endif
-
-	if (check == 2 && !mark_irqflags(curr, hlock))
-		return 0;
-
-	/* mark it as used: */
-	if (!mark_lock(curr, hlock, LOCK_USED))
-		return 0;
-
-	/*
-	 * Calculate the chain hash: it's the combined hash of all the
-	 * lock keys along the dependency chain. We save the hash value
-	 * at every step so that we can get the current hash easily
-	 * after unlock. The chain hash is then used to cache dependency
-	 * results.
-	 *
-	 * The 'key ID' is what is the most compact key value to drive
-	 * the hash, not class->key.
-	 */
-	id = class - lock_classes;
-	/*
-	 * Whoops, we did it again.. ran straight out of our static allocation.
-	 */
-	if (DEBUG_LOCKS_WARN_ON(id >= MAX_LOCKDEP_KEYS))
-		return 0;
-
-	chain_key = curr->curr_chain_key;
-	if (!depth) {
-		/*
-		 * How can we have a chain hash when we ain't got no keys?!
-		 */
-		if (DEBUG_LOCKS_WARN_ON(chain_key != 0))
-			return 0;
-		chain_head = 1;
-	}
-
-	hlock->prev_chain_key = chain_key;
-	if (separate_irq_context(curr, hlock)) {
-		chain_key = 0;
-		chain_head = 1;
-	}
-	chain_key = iterate_chain_key(chain_key, id);
-
-	if (nest_lock && !__lock_is_held(nest_lock))
-		return print_lock_nested_lock_not_held(curr, hlock, ip);
-
-	if (!validate_chain(curr, lock, hlock, chain_head, chain_key))
-		return 0;
-
-	curr->curr_chain_key = chain_key;
-	curr->lockdep_depth++;
-	check_chain_key(curr);
-#ifdef CONFIG_DEBUG_LOCKDEP
-	if (unlikely(!debug_locks))
-		return 0;
-#endif
-	if (unlikely(curr->lockdep_depth >= MAX_LOCK_DEPTH)) {
-		debug_locks_off();
-		print_lockdep_off("BUG: MAX_LOCK_DEPTH too low!");
-		printk(KERN_DEBUG "depth: %i  max: %lu!\n",
-		       curr->lockdep_depth, MAX_LOCK_DEPTH);
-
-		lockdep_print_held_locks(current);
-		debug_show_all_locks();
-		dump_stack();
-
-		return 0;
-	}
-
-	if (unlikely(curr->lockdep_depth > max_lockdep_depth))
-		max_lockdep_depth = curr->lockdep_depth;
-
-	return 1;
-}
-
-static int
-print_unlock_imbalance_bug(struct task_struct *curr, struct lockdep_map *lock,
-			   unsigned long ip)
-{
-	if (!debug_locks_off())
-		return 0;
-	if (debug_locks_silent)
-		return 0;
-
-	printk("\n");
-	printk("=====================================\n");
-	printk("[ BUG: bad unlock balance detected! ]\n");
-	print_kernel_ident();
-	printk("-------------------------------------\n");
-	printk("%s/%d is trying to release lock (",
-		curr->comm, task_pid_nr(curr));
-	print_lockdep_cache(lock);
-	printk(") at:\n");
-	print_ip_sym(ip);
-	printk("but there are no more locks to release!\n");
-	printk("\nother info that might help us debug this:\n");
-	lockdep_print_held_locks(curr);
-
-	printk("\nstack backtrace:\n");
-	dump_stack();
-
-	return 0;
-}
-
-/*
- * Common debugging checks for both nested and non-nested unlock:
- */
-static int check_unlock(struct task_struct *curr, struct lockdep_map *lock,
-			unsigned long ip)
-{
-	if (unlikely(!debug_locks))
-		return 0;
-	/*
-	 * Lockdep should run with IRQs disabled, recursion, head-ache, etc..
-	 */
-	if (DEBUG_LOCKS_WARN_ON(!irqs_disabled()))
-		return 0;
-
-	if (curr->lockdep_depth <= 0)
-		return print_unlock_imbalance_bug(curr, lock, ip);
-
-	return 1;
-}
-
-static int match_held_lock(struct held_lock *hlock, struct lockdep_map *lock)
-{
-	if (hlock->instance == lock)
-		return 1;
-
-	if (hlock->references) {
-		struct lock_class *class = lock->class_cache[0];
-
-		if (!class)
-			class = look_up_lock_class(lock, 0);
-
-		/*
-		 * If look_up_lock_class() failed to find a class, we're trying
-		 * to test if we hold a lock that has never yet been acquired.
-		 * Clearly if the lock hasn't been acquired _ever_, we're not
-		 * holding it either, so report failure.
-		 */
-		if (!class)
-			return 0;
-
-		/*
-		 * References, but not a lock we're actually ref-counting?
-		 * State got messed up, follow the sites that change ->references
-		 * and try to make sense of it.
-		 */
-		if (DEBUG_LOCKS_WARN_ON(!hlock->nest_lock))
-			return 0;
-
-		if (hlock->class_idx == class - lock_classes + 1)
-			return 1;
-	}
-
-	return 0;
-}
-
-static int
-__lock_set_class(struct lockdep_map *lock, const char *name,
-		 struct lock_class_key *key, unsigned int subclass,
-		 unsigned long ip)
-{
-	struct task_struct *curr = current;
-	struct held_lock *hlock, *prev_hlock;
-	struct lock_class *class;
-	unsigned int depth;
-	int i;
-
-	depth = curr->lockdep_depth;
-	/*
-	 * This function is about (re)setting the class of a held lock,
-	 * yet we're not actually holding any locks. Naughty user!
-	 */
-	if (DEBUG_LOCKS_WARN_ON(!depth))
-		return 0;
-
-	prev_hlock = NULL;
-	for (i = depth-1; i >= 0; i--) {
-		hlock = curr->held_locks + i;
-		/*
-		 * We must not cross into another context:
-		 */
-		if (prev_hlock && prev_hlock->irq_context != hlock->irq_context)
-			break;
-		if (match_held_lock(hlock, lock))
-			goto found_it;
-		prev_hlock = hlock;
-	}
-	return print_unlock_imbalance_bug(curr, lock, ip);
-
-found_it:
-	lockdep_init_map(lock, name, key, 0);
-	class = register_lock_class(lock, subclass, 0);
-	hlock->class_idx = class - lock_classes + 1;
-
-	curr->lockdep_depth = i;
-	curr->curr_chain_key = hlock->prev_chain_key;
-
-	for (; i < depth; i++) {
-		hlock = curr->held_locks + i;
-		if (!__lock_acquire(hlock->instance,
-			hlock_class(hlock)->subclass, hlock->trylock,
-				hlock->read, hlock->check, hlock->hardirqs_off,
-				hlock->nest_lock, hlock->acquire_ip,
-				hlock->references))
-			return 0;
-	}
-
-	/*
-	 * I took it apart and put it back together again, except now I have
-	 * these 'spare' parts.. where shall I put them.
-	 */
-	if (DEBUG_LOCKS_WARN_ON(curr->lockdep_depth != depth))
-		return 0;
-	return 1;
-}
-
-/*
- * Remove the lock to the list of currently held locks in a
- * potentially non-nested (out of order) manner. This is a
- * relatively rare operation, as all the unlock APIs default
- * to nested mode (which uses lock_release()):
- */
-static int
-lock_release_non_nested(struct task_struct *curr,
-			struct lockdep_map *lock, unsigned long ip)
-{
-	struct held_lock *hlock, *prev_hlock;
-	unsigned int depth;
-	int i;
-
-	/*
-	 * Check whether the lock exists in the current stack
-	 * of held locks:
-	 */
-	depth = curr->lockdep_depth;
-	/*
-	 * So we're all set to release this lock.. wait what lock? We don't
-	 * own any locks, you've been drinking again?
-	 */
-	if (DEBUG_LOCKS_WARN_ON(!depth))
-		return 0;
-
-	prev_hlock = NULL;
-	for (i = depth-1; i >= 0; i--) {
-		hlock = curr->held_locks + i;
-		/*
-		 * We must not cross into another context:
-		 */
-		if (prev_hlock && prev_hlock->irq_context != hlock->irq_context)
-			break;
-		if (match_held_lock(hlock, lock))
-			goto found_it;
-		prev_hlock = hlock;
-	}
-	return print_unlock_imbalance_bug(curr, lock, ip);
-
-found_it:
-	if (hlock->instance == lock)
-		lock_release_holdtime(hlock);
-
-	if (hlock->references) {
-		hlock->references--;
-		if (hlock->references) {
-			/*
-			 * We had, and after removing one, still have
-			 * references, the current lock stack is still
-			 * valid. We're done!
-			 */
-			return 1;
-		}
-	}
-
-	/*
-	 * We have the right lock to unlock, 'hlock' points to it.
-	 * Now we remove it from the stack, and add back the other
-	 * entries (if any), recalculating the hash along the way:
-	 */
-
-	curr->lockdep_depth = i;
-	curr->curr_chain_key = hlock->prev_chain_key;
-
-	for (i++; i < depth; i++) {
-		hlock = curr->held_locks + i;
-		if (!__lock_acquire(hlock->instance,
-			hlock_class(hlock)->subclass, hlock->trylock,
-				hlock->read, hlock->check, hlock->hardirqs_off,
-				hlock->nest_lock, hlock->acquire_ip,
-				hlock->references))
-			return 0;
-	}
-
-	/*
-	 * We had N bottles of beer on the wall, we drank one, but now
-	 * there's not N-1 bottles of beer left on the wall...
-	 */
-	if (DEBUG_LOCKS_WARN_ON(curr->lockdep_depth != depth - 1))
-		return 0;
-	return 1;
-}
-
-/*
- * Remove the lock to the list of currently held locks - this gets
- * called on mutex_unlock()/spin_unlock*() (or on a failed
- * mutex_lock_interruptible()). This is done for unlocks that nest
- * perfectly. (i.e. the current top of the lock-stack is unlocked)
- */
-static int lock_release_nested(struct task_struct *curr,
-			       struct lockdep_map *lock, unsigned long ip)
-{
-	struct held_lock *hlock;
-	unsigned int depth;
-
-	/*
-	 * Pop off the top of the lock stack:
-	 */
-	depth = curr->lockdep_depth - 1;
-	hlock = curr->held_locks + depth;
-
-	/*
-	 * Is the unlock non-nested:
-	 */
-	if (hlock->instance != lock || hlock->references)
-		return lock_release_non_nested(curr, lock, ip);
-	curr->lockdep_depth--;
-
-	/*
-	 * No more locks, but somehow we've got hash left over, who left it?
-	 */
-	if (DEBUG_LOCKS_WARN_ON(!depth && (hlock->prev_chain_key != 0)))
-		return 0;
-
-	curr->curr_chain_key = hlock->prev_chain_key;
-
-	lock_release_holdtime(hlock);
-
-#ifdef CONFIG_DEBUG_LOCKDEP
-	hlock->prev_chain_key = 0;
-	hlock->class_idx = 0;
-	hlock->acquire_ip = 0;
-	hlock->irq_context = 0;
-#endif
-	return 1;
-}
-
-/*
- * Remove the lock to the list of currently held locks - this gets
- * called on mutex_unlock()/spin_unlock*() (or on a failed
- * mutex_lock_interruptible()). This is done for unlocks that nest
- * perfectly. (i.e. the current top of the lock-stack is unlocked)
- */
-static void
-__lock_release(struct lockdep_map *lock, int nested, unsigned long ip)
-{
-	struct task_struct *curr = current;
-
-	if (!check_unlock(curr, lock, ip))
-		return;
-
-	if (nested) {
-		if (!lock_release_nested(curr, lock, ip))
-			return;
-	} else {
-		if (!lock_release_non_nested(curr, lock, ip))
-			return;
-	}
-
-	check_chain_key(curr);
-}
-
-static int __lock_is_held(struct lockdep_map *lock)
-{
-	struct task_struct *curr = current;
-	int i;
-
-	for (i = 0; i < curr->lockdep_depth; i++) {
-		struct held_lock *hlock = curr->held_locks + i;
-
-		if (match_held_lock(hlock, lock))
-			return 1;
-	}
-
-	return 0;
-}
-
-/*
- * Check whether we follow the irq-flags state precisely:
- */
-static void check_flags(unsigned long flags)
-{
-#if defined(CONFIG_PROVE_LOCKING) && defined(CONFIG_DEBUG_LOCKDEP) && \
-    defined(CONFIG_TRACE_IRQFLAGS)
-	if (!debug_locks)
-		return;
-
-	if (irqs_disabled_flags(flags)) {
-		if (DEBUG_LOCKS_WARN_ON(current->hardirqs_enabled)) {
-			printk("possible reason: unannotated irqs-off.\n");
-		}
-	} else {
-		if (DEBUG_LOCKS_WARN_ON(!current->hardirqs_enabled)) {
-			printk("possible reason: unannotated irqs-on.\n");
-		}
-	}
-
-	/*
-	 * We dont accurately track softirq state in e.g.
-	 * hardirq contexts (such as on 4KSTACKS), so only
-	 * check if not in hardirq contexts:
-	 */
-	if (!hardirq_count()) {
-		if (softirq_count()) {
-			/* like the above, but with softirqs */
-			DEBUG_LOCKS_WARN_ON(current->softirqs_enabled);
-		} else {
-			/* lick the above, does it taste good? */
-			DEBUG_LOCKS_WARN_ON(!current->softirqs_enabled);
-		}
-	}
-
-	if (!debug_locks)
-		print_irqtrace_events(current);
-#endif
-}
-
-void lock_set_class(struct lockdep_map *lock, const char *name,
-		    struct lock_class_key *key, unsigned int subclass,
-		    unsigned long ip)
-{
-	unsigned long flags;
-
-	if (unlikely(current->lockdep_recursion))
-		return;
-
-	raw_local_irq_save(flags);
-	current->lockdep_recursion = 1;
-	check_flags(flags);
-	if (__lock_set_class(lock, name, key, subclass, ip))
-		check_chain_key(current);
-	current->lockdep_recursion = 0;
-	raw_local_irq_restore(flags);
-}
-EXPORT_SYMBOL_GPL(lock_set_class);
-
-/*
- * We are not always called with irqs disabled - do that here,
- * and also avoid lockdep recursion:
- */
-void lock_acquire(struct lockdep_map *lock, unsigned int subclass,
-			  int trylock, int read, int check,
-			  struct lockdep_map *nest_lock, unsigned long ip)
-{
-	unsigned long flags;
-
-	if (unlikely(current->lockdep_recursion))
-		return;
-
-	raw_local_irq_save(flags);
-	check_flags(flags);
-
-	current->lockdep_recursion = 1;
-	trace_lock_acquire(lock, subclass, trylock, read, check, nest_lock, ip);
-	__lock_acquire(lock, subclass, trylock, read, check,
-		       irqs_disabled_flags(flags), nest_lock, ip, 0);
-	current->lockdep_recursion = 0;
-	raw_local_irq_restore(flags);
-}
-EXPORT_SYMBOL_GPL(lock_acquire);
-
-void lock_release(struct lockdep_map *lock, int nested,
-			  unsigned long ip)
-{
-	unsigned long flags;
-
-	if (unlikely(current->lockdep_recursion))
-		return;
-
-	raw_local_irq_save(flags);
-	check_flags(flags);
-	current->lockdep_recursion = 1;
-	trace_lock_release(lock, ip);
-	__lock_release(lock, nested, ip);
-	current->lockdep_recursion = 0;
-	raw_local_irq_restore(flags);
-}
-EXPORT_SYMBOL_GPL(lock_release);
-
-int lock_is_held(struct lockdep_map *lock)
-{
-	unsigned long flags;
-	int ret = 0;
-
-	if (unlikely(current->lockdep_recursion))
-		return 1; /* avoid false negative lockdep_assert_held() */
-
-	raw_local_irq_save(flags);
-	check_flags(flags);
-
-	current->lockdep_recursion = 1;
-	ret = __lock_is_held(lock);
-	current->lockdep_recursion = 0;
-	raw_local_irq_restore(flags);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(lock_is_held);
-
-void lockdep_set_current_reclaim_state(gfp_t gfp_mask)
-{
-	current->lockdep_reclaim_gfp = gfp_mask;
-}
-
-void lockdep_clear_current_reclaim_state(void)
-{
-	current->lockdep_reclaim_gfp = 0;
-}
-
-#ifdef CONFIG_LOCK_STAT
-static int
-print_lock_contention_bug(struct task_struct *curr, struct lockdep_map *lock,
-			   unsigned long ip)
-{
-	if (!debug_locks_off())
-		return 0;
-	if (debug_locks_silent)
-		return 0;
-
-	printk("\n");
-	printk("=================================\n");
-	printk("[ BUG: bad contention detected! ]\n");
-	print_kernel_ident();
-	printk("---------------------------------\n");
-	printk("%s/%d is trying to contend lock (",
-		curr->comm, task_pid_nr(curr));
-	print_lockdep_cache(lock);
-	printk(") at:\n");
-	print_ip_sym(ip);
-	printk("but there are no locks held!\n");
-	printk("\nother info that might help us debug this:\n");
-	lockdep_print_held_locks(curr);
-
-	printk("\nstack backtrace:\n");
-	dump_stack();
-
-	return 0;
-}
-
-static void
-__lock_contended(struct lockdep_map *lock, unsigned long ip)
-{
-	struct task_struct *curr = current;
-	struct held_lock *hlock, *prev_hlock;
-	struct lock_class_stats *stats;
-	unsigned int depth;
-	int i, contention_point, contending_point;
-
-	depth = curr->lockdep_depth;
-	/*
-	 * Whee, we contended on this lock, except it seems we're not
-	 * actually trying to acquire anything much at all..
-	 */
-	if (DEBUG_LOCKS_WARN_ON(!depth))
-		return;
-
-	prev_hlock = NULL;
-	for (i = depth-1; i >= 0; i--) {
-		hlock = curr->held_locks + i;
-		/*
-		 * We must not cross into another context:
-		 */
-		if (prev_hlock && prev_hlock->irq_context != hlock->irq_context)
-			break;
-		if (match_held_lock(hlock, lock))
-			goto found_it;
-		prev_hlock = hlock;
-	}
-	print_lock_contention_bug(curr, lock, ip);
-	return;
-
-found_it:
-	if (hlock->instance != lock)
-		return;
-
-	hlock->waittime_stamp = lockstat_clock();
-
-	contention_point = lock_point(hlock_class(hlock)->contention_point, ip);
-	contending_point = lock_point(hlock_class(hlock)->contending_point,
-				      lock->ip);
-
-	stats = get_lock_stats(hlock_class(hlock));
-	if (contention_point < LOCKSTAT_POINTS)
-		stats->contention_point[contention_point]++;
-	if (contending_point < LOCKSTAT_POINTS)
-		stats->contending_point[contending_point]++;
-	if (lock->cpu != smp_processor_id())
-		stats->bounces[bounce_contended + !!hlock->read]++;
-	put_lock_stats(stats);
-}
-
-static void
-__lock_acquired(struct lockdep_map *lock, unsigned long ip)
-{
-	struct task_struct *curr = current;
-	struct held_lock *hlock, *prev_hlock;
-	struct lock_class_stats *stats;
-	unsigned int depth;
-	u64 now, waittime = 0;
-	int i, cpu;
-
-	depth = curr->lockdep_depth;
-	/*
-	 * Yay, we acquired ownership of this lock we didn't try to
-	 * acquire, how the heck did that happen?
-	 */
-	if (DEBUG_LOCKS_WARN_ON(!depth))
-		return;
-
-	prev_hlock = NULL;
-	for (i = depth-1; i >= 0; i--) {
-		hlock = curr->held_locks + i;
-		/*
-		 * We must not cross into another context:
-		 */
-		if (prev_hlock && prev_hlock->irq_context != hlock->irq_context)
-			break;
-		if (match_held_lock(hlock, lock))
-			goto found_it;
-		prev_hlock = hlock;
-	}
-	print_lock_contention_bug(curr, lock, _RET_IP_);
-	return;
-
-found_it:
-	if (hlock->instance != lock)
-		return;
-
-	cpu = smp_processor_id();
-	if (hlock->waittime_stamp) {
-		now = lockstat_clock();
-		waittime = now - hlock->waittime_stamp;
-		hlock->holdtime_stamp = now;
-	}
-
-	trace_lock_acquired(lock, ip);
-
-	stats = get_lock_stats(hlock_class(hlock));
-	if (waittime) {
-		if (hlock->read)
-			lock_time_inc(&stats->read_waittime, waittime);
-		else
-			lock_time_inc(&stats->write_waittime, waittime);
-	}
-	if (lock->cpu != cpu)
-		stats->bounces[bounce_acquired + !!hlock->read]++;
-	put_lock_stats(stats);
-
-	lock->cpu = cpu;
-	lock->ip = ip;
-}
-
-void lock_contended(struct lockdep_map *lock, unsigned long ip)
-{
-	unsigned long flags;
-
-	if (unlikely(!lock_stat))
-		return;
-
-	if (unlikely(current->lockdep_recursion))
-		return;
-
-	raw_local_irq_save(flags);
-	check_flags(flags);
-	current->lockdep_recursion = 1;
-	trace_lock_contended(lock, ip);
-	__lock_contended(lock, ip);
-	current->lockdep_recursion = 0;
-	raw_local_irq_restore(flags);
-}
-EXPORT_SYMBOL_GPL(lock_contended);
-
-void lock_acquired(struct lockdep_map *lock, unsigned long ip)
-{
-	unsigned long flags;
-
-	if (unlikely(!lock_stat))
-		return;
-
-	if (unlikely(current->lockdep_recursion))
-		return;
-
-	raw_local_irq_save(flags);
-	check_flags(flags);
-	current->lockdep_recursion = 1;
-	__lock_acquired(lock, ip);
-	current->lockdep_recursion = 0;
-	raw_local_irq_restore(flags);
-}
-EXPORT_SYMBOL_GPL(lock_acquired);
-#endif
-
-/*
- * Used by the testsuite, sanitize the validator state
- * after a simulated failure:
- */
-
-void lockdep_reset(void)
-{
-	unsigned long flags;
-	int i;
-
-	raw_local_irq_save(flags);
-	current->curr_chain_key = 0;
-	current->lockdep_depth = 0;
-	current->lockdep_recursion = 0;
-	memset(current->held_locks, 0, MAX_LOCK_DEPTH*sizeof(struct held_lock));
-	nr_hardirq_chains = 0;
-	nr_softirq_chains = 0;
-	nr_process_chains = 0;
-	debug_locks = 1;
-	for (i = 0; i < CHAINHASH_SIZE; i++)
-		INIT_LIST_HEAD(chainhash_table + i);
-	raw_local_irq_restore(flags);
-}
-
-static void zap_class(struct lock_class *class)
-{
-	int i;
-
-	/*
-	 * Remove all dependencies this lock is
-	 * involved in:
-	 */
-	for (i = 0; i < nr_list_entries; i++) {
-		if (list_entries[i].class == class)
-			list_del_rcu(&list_entries[i].entry);
-	}
-	/*
-	 * Unhash the class and remove it from the all_lock_classes list:
-	 */
-	list_del_rcu(&class->hash_entry);
-	list_del_rcu(&class->lock_entry);
-
-	class->key = NULL;
-}
-
-static inline int within(const void *addr, void *start, unsigned long size)
-{
-	return addr >= start && addr < start + size;
-}
-
-void lockdep_free_key_range(void *start, unsigned long size)
-{
-	struct lock_class *class, *next;
-	struct list_head *head;
-	unsigned long flags;
-	int i;
-	int locked;
-
-	raw_local_irq_save(flags);
-	locked = graph_lock();
-
-	/*
-	 * Unhash all classes that were created by this module:
-	 */
-	for (i = 0; i < CLASSHASH_SIZE; i++) {
-		head = classhash_table + i;
-		if (list_empty(head))
-			continue;
-		list_for_each_entry_safe(class, next, head, hash_entry) {
-			if (within(class->key, start, size))
-				zap_class(class);
-			else if (within(class->name, start, size))
-				zap_class(class);
-		}
-	}
-
-	if (locked)
-		graph_unlock();
-	raw_local_irq_restore(flags);
-}
-
-void lockdep_reset_lock(struct lockdep_map *lock)
-{
-	struct lock_class *class, *next;
-	struct list_head *head;
-	unsigned long flags;
-	int i, j;
-	int locked;
-
-	raw_local_irq_save(flags);
-
-	/*
-	 * Remove all classes this lock might have:
-	 */
-	for (j = 0; j < MAX_LOCKDEP_SUBCLASSES; j++) {
-		/*
-		 * If the class exists we look it up and zap it:
-		 */
-		class = look_up_lock_class(lock, j);
-		if (class)
-			zap_class(class);
-	}
-	/*
-	 * Debug check: in the end all mapped classes should
-	 * be gone.
-	 */
-	locked = graph_lock();
-	for (i = 0; i < CLASSHASH_SIZE; i++) {
-		head = classhash_table + i;
-		if (list_empty(head))
-			continue;
-		list_for_each_entry_safe(class, next, head, hash_entry) {
-			int match = 0;
-
-			for (j = 0; j < NR_LOCKDEP_CACHING_CLASSES; j++)
-				match |= class == lock->class_cache[j];
-
-			if (unlikely(match)) {
-				if (debug_locks_off_graph_unlock()) {
-					/*
-					 * We all just reset everything, how did it match?
-					 */
-					WARN_ON(1);
-				}
-				goto out_restore;
-			}
-		}
-	}
-	if (locked)
-		graph_unlock();
-
-out_restore:
-	raw_local_irq_restore(flags);
-}
-
-void lockdep_init(void)
-{
-	int i;
-
-	/*
-	 * Some architectures have their own start_kernel()
-	 * code which calls lockdep_init(), while we also
-	 * call lockdep_init() from the start_kernel() itself,
-	 * and we want to initialize the hashes only once:
-	 */
-	if (lockdep_initialized)
-		return;
-
-	for (i = 0; i < CLASSHASH_SIZE; i++)
-		INIT_LIST_HEAD(classhash_table + i);
-
-	for (i = 0; i < CHAINHASH_SIZE; i++)
-		INIT_LIST_HEAD(chainhash_table + i);
-
-	lockdep_initialized = 1;
-}
-
-void __init lockdep_info(void)
-{
-	printk("Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar\n");
-
-	printk("... MAX_LOCKDEP_SUBCLASSES:  %lu\n", MAX_LOCKDEP_SUBCLASSES);
-	printk("... MAX_LOCK_DEPTH:          %lu\n", MAX_LOCK_DEPTH);
-	printk("... MAX_LOCKDEP_KEYS:        %lu\n", MAX_LOCKDEP_KEYS);
-	printk("... CLASSHASH_SIZE:          %lu\n", CLASSHASH_SIZE);
-	printk("... MAX_LOCKDEP_ENTRIES:     %lu\n", MAX_LOCKDEP_ENTRIES);
-	printk("... MAX_LOCKDEP_CHAINS:      %lu\n", MAX_LOCKDEP_CHAINS);
-	printk("... CHAINHASH_SIZE:          %lu\n", CHAINHASH_SIZE);
-
-	printk(" memory used by lock dependency info: %lu kB\n",
-		(sizeof(struct lock_class) * MAX_LOCKDEP_KEYS +
-		sizeof(struct list_head) * CLASSHASH_SIZE +
-		sizeof(struct lock_list) * MAX_LOCKDEP_ENTRIES +
-		sizeof(struct lock_chain) * MAX_LOCKDEP_CHAINS +
-		sizeof(struct list_head) * CHAINHASH_SIZE
-#ifdef CONFIG_PROVE_LOCKING
-		+ sizeof(struct circular_queue)
-#endif
-		) / 1024
-		);
-
-	printk(" per task-struct memory footprint: %lu bytes\n",
-		sizeof(struct held_lock) * MAX_LOCK_DEPTH);
-
-#ifdef CONFIG_DEBUG_LOCKDEP
-	if (lockdep_init_error) {
-		printk("WARNING: lockdep init error! lock-%s was acquired"
-			"before lockdep_init\n", lock_init_error);
-		printk("Call stack leading to lockdep invocation was:\n");
-		print_stack_trace(&lockdep_init_trace, 0);
-	}
-#endif
-}
-
-static void
-print_freed_lock_bug(struct task_struct *curr, const void *mem_from,
-		     const void *mem_to, struct held_lock *hlock)
-{
-	if (!debug_locks_off())
-		return;
-	if (debug_locks_silent)
-		return;
-
-	printk("\n");
-	printk("=========================\n");
-	printk("[ BUG: held lock freed! ]\n");
-	print_kernel_ident();
-	printk("-------------------------\n");
-	printk("%s/%d is freeing memory %p-%p, with a lock still held there!\n",
-		curr->comm, task_pid_nr(curr), mem_from, mem_to-1);
-	print_lock(hlock);
-	lockdep_print_held_locks(curr);
-
-	printk("\nstack backtrace:\n");
-	dump_stack();
-}
-
-static inline int not_in_range(const void* mem_from, unsigned long mem_len,
-				const void* lock_from, unsigned long lock_len)
-{
-	return lock_from + lock_len <= mem_from ||
-		mem_from + mem_len <= lock_from;
-}
-
-/*
- * Called when kernel memory is freed (or unmapped), or if a lock
- * is destroyed or reinitialized - this code checks whether there is
- * any held lock in the memory range of <from> to <to>:
- */
-void debug_check_no_locks_freed(const void *mem_from, unsigned long mem_len)
-{
-	struct task_struct *curr = current;
-	struct held_lock *hlock;
-	unsigned long flags;
-	int i;
-
-	if (unlikely(!debug_locks))
-		return;
-
-	local_irq_save(flags);
-	for (i = 0; i < curr->lockdep_depth; i++) {
-		hlock = curr->held_locks + i;
-
-		if (not_in_range(mem_from, mem_len, hlock->instance,
-					sizeof(*hlock->instance)))
-			continue;
-
-		print_freed_lock_bug(curr, mem_from, mem_from + mem_len, hlock);
-		break;
-	}
-	local_irq_restore(flags);
-}
-EXPORT_SYMBOL_GPL(debug_check_no_locks_freed);
-
-static void print_held_locks_bug(void)
-{
-	if (!debug_locks_off())
-		return;
-	if (debug_locks_silent)
-		return;
-
-	printk("\n");
-	printk("=====================================\n");
-	printk("[ BUG: %s/%d still has locks held! ]\n",
-	       current->comm, task_pid_nr(current));
-	print_kernel_ident();
-	printk("-------------------------------------\n");
-	lockdep_print_held_locks(current);
-	printk("\nstack backtrace:\n");
-	dump_stack();
-}
-
-void debug_check_no_locks_held(void)
-{
-	if (unlikely(current->lockdep_depth > 0))
-		print_held_locks_bug();
-}
-EXPORT_SYMBOL_GPL(debug_check_no_locks_held);
-
-void debug_show_all_locks(void)
-{
-	struct task_struct *g, *p;
-	int count = 10;
-	int unlock = 1;
-
-	if (unlikely(!debug_locks)) {
-		printk("INFO: lockdep is turned off.\n");
-		return;
-	}
-	printk("\nShowing all locks held in the system:\n");
-
-	/*
-	 * Here we try to get the tasklist_lock as hard as possible,
-	 * if not successful after 2 seconds we ignore it (but keep
-	 * trying). This is to enable a debug printout even if a
-	 * tasklist_lock-holding task deadlocks or crashes.
-	 */
-retry:
-	if (!read_trylock(&tasklist_lock)) {
-		if (count == 10)
-			printk("hm, tasklist_lock locked, retrying... ");
-		if (count) {
-			count--;
-			printk(" #%d", 10-count);
-			mdelay(200);
-			goto retry;
-		}
-		printk(" ignoring it.\n");
-		unlock = 0;
-	} else {
-		if (count != 10)
-			printk(KERN_CONT " locked it.\n");
-	}
-
-	do_each_thread(g, p) {
-		/*
-		 * It's not reliable to print a task's held locks
-		 * if it's not sleeping (or if it's not the current
-		 * task):
-		 */
-		if (p->state == TASK_RUNNING && p != current)
-			continue;
-		if (p->lockdep_depth)
-			lockdep_print_held_locks(p);
-		if (!unlock)
-			if (read_trylock(&tasklist_lock))
-				unlock = 1;
-	} while_each_thread(g, p);
-
-	printk("\n");
-	printk("=============================================\n\n");
-
-	if (unlock)
-		read_unlock(&tasklist_lock);
-}
-EXPORT_SYMBOL_GPL(debug_show_all_locks);
-
-/*
- * Careful: only use this function if you are sure that
- * the task cannot run in parallel!
- */
-void debug_show_held_locks(struct task_struct *task)
-{
-	if (unlikely(!debug_locks)) {
-		printk("INFO: lockdep is turned off.\n");
-		return;
-	}
-	lockdep_print_held_locks(task);
-}
-EXPORT_SYMBOL_GPL(debug_show_held_locks);
-
-void lockdep_sys_exit(void)
-{
-	struct task_struct *curr = current;
-
-	if (unlikely(curr->lockdep_depth)) {
-		if (!debug_locks_off())
-			return;
-		printk("\n");
-		printk("================================================\n");
-		printk("[ BUG: lock held when returning to user space! ]\n");
-		print_kernel_ident();
-		printk("------------------------------------------------\n");
-		printk("%s/%d is leaving the kernel with locks still held!\n",
-				curr->comm, curr->pid);
-		lockdep_print_held_locks(curr);
-	}
-}
-
-void lockdep_rcu_suspicious(const char *file, const int line, const char *s)
-{
-	struct task_struct *curr = current;
-
-#ifndef CONFIG_PROVE_RCU_REPEATEDLY
-	if (!debug_locks_off())
-		return;
-#endif /* #ifdef CONFIG_PROVE_RCU_REPEATEDLY */
-	/* Note: the following can be executed concurrently, so be careful. */
-	printk("\n");
-	printk("===============================\n");
-	printk("[ INFO: suspicious RCU usage. ]\n");
-	print_kernel_ident();
-	printk("-------------------------------\n");
-	printk("%s:%d %s!\n", file, line, s);
-	printk("\nother info that might help us debug this:\n\n");
-	printk("\n%srcu_scheduler_active = %d, debug_locks = %d\n",
-	       !rcu_lockdep_current_cpu_online()
-			? "RCU used illegally from offline CPU!\n"
-			: !rcu_is_watching()
-				? "RCU used illegally from idle CPU!\n"
-				: "",
-	       rcu_scheduler_active, debug_locks);
-
-	/*
-	 * If a CPU is in the RCU-free window in idle (ie: in the section
-	 * between rcu_idle_enter() and rcu_idle_exit(), then RCU
-	 * considers that CPU to be in an "extended quiescent state",
-	 * which means that RCU will be completely ignoring that CPU.
-	 * Therefore, rcu_read_lock() and friends have absolutely no
-	 * effect on a CPU running in that state. In other words, even if
-	 * such an RCU-idle CPU has called rcu_read_lock(), RCU might well
-	 * delete data structures out from under it.  RCU really has no
-	 * choice here: we need to keep an RCU-free window in idle where
-	 * the CPU may possibly enter into low power mode. This way we can
-	 * notice an extended quiescent state to other CPUs that started a grace
-	 * period. Otherwise we would delay any grace period as long as we run
-	 * in the idle task.
-	 *
-	 * So complain bitterly if someone does call rcu_read_lock(),
-	 * rcu_read_lock_bh() and so on from extended quiescent states.
-	 */
-	if (!rcu_is_watching())
-		printk("RCU used illegally from extended quiescent state!\n");
-
-	lockdep_print_held_locks(curr);
-	printk("\nstack backtrace:\n");
-	dump_stack();
-}
-EXPORT_SYMBOL_GPL(lockdep_rcu_suspicious);
diff --git a/kernel/lockdep_internals.h b/kernel/lockdep_internals.h
deleted file mode 100644
index 4f560cfedc8f..000000000000
--- a/kernel/lockdep_internals.h
+++ /dev/null
@@ -1,170 +0,0 @@
-/*
- * kernel/lockdep_internals.h
- *
- * Runtime locking correctness validator
- *
- * lockdep subsystem internal functions and variables.
- */
-
-/*
- * Lock-class usage-state bits:
- */
-enum lock_usage_bit {
-#define LOCKDEP_STATE(__STATE)		\
-	LOCK_USED_IN_##__STATE,		\
-	LOCK_USED_IN_##__STATE##_READ,	\
-	LOCK_ENABLED_##__STATE,		\
-	LOCK_ENABLED_##__STATE##_READ,
-#include "lockdep_states.h"
-#undef LOCKDEP_STATE
-	LOCK_USED,
-	LOCK_USAGE_STATES
-};
-
-/*
- * Usage-state bitmasks:
- */
-#define __LOCKF(__STATE)	LOCKF_##__STATE = (1 << LOCK_##__STATE),
-
-enum {
-#define LOCKDEP_STATE(__STATE)						\
-	__LOCKF(USED_IN_##__STATE)					\
-	__LOCKF(USED_IN_##__STATE##_READ)				\
-	__LOCKF(ENABLED_##__STATE)					\
-	__LOCKF(ENABLED_##__STATE##_READ)
-#include "lockdep_states.h"
-#undef LOCKDEP_STATE
-	__LOCKF(USED)
-};
-
-#define LOCKF_ENABLED_IRQ (LOCKF_ENABLED_HARDIRQ | LOCKF_ENABLED_SOFTIRQ)
-#define LOCKF_USED_IN_IRQ (LOCKF_USED_IN_HARDIRQ | LOCKF_USED_IN_SOFTIRQ)
-
-#define LOCKF_ENABLED_IRQ_READ \
-		(LOCKF_ENABLED_HARDIRQ_READ | LOCKF_ENABLED_SOFTIRQ_READ)
-#define LOCKF_USED_IN_IRQ_READ \
-		(LOCKF_USED_IN_HARDIRQ_READ | LOCKF_USED_IN_SOFTIRQ_READ)
-
-/*
- * MAX_LOCKDEP_ENTRIES is the maximum number of lock dependencies
- * we track.
- *
- * We use the per-lock dependency maps in two ways: we grow it by adding
- * every to-be-taken lock to all currently held lock's own dependency
- * table (if it's not there yet), and we check it for lock order
- * conflicts and deadlocks.
- */
-#define MAX_LOCKDEP_ENTRIES	16384UL
-
-#define MAX_LOCKDEP_CHAINS_BITS	15
-#define MAX_LOCKDEP_CHAINS	(1UL << MAX_LOCKDEP_CHAINS_BITS)
-
-#define MAX_LOCKDEP_CHAIN_HLOCKS (MAX_LOCKDEP_CHAINS*5)
-
-/*
- * Stack-trace: tightly packed array of stack backtrace
- * addresses. Protected by the hash_lock.
- */
-#define MAX_STACK_TRACE_ENTRIES	262144UL
-
-extern struct list_head all_lock_classes;
-extern struct lock_chain lock_chains[];
-
-#define LOCK_USAGE_CHARS (1+LOCK_USAGE_STATES/2)
-
-extern void get_usage_chars(struct lock_class *class,
-			    char usage[LOCK_USAGE_CHARS]);
-
-extern const char * __get_key_name(struct lockdep_subclass_key *key, char *str);
-
-struct lock_class *lock_chain_get_class(struct lock_chain *chain, int i);
-
-extern unsigned long nr_lock_classes;
-extern unsigned long nr_list_entries;
-extern unsigned long nr_lock_chains;
-extern int nr_chain_hlocks;
-extern unsigned long nr_stack_trace_entries;
-
-extern unsigned int nr_hardirq_chains;
-extern unsigned int nr_softirq_chains;
-extern unsigned int nr_process_chains;
-extern unsigned int max_lockdep_depth;
-extern unsigned int max_recursion_depth;
-
-extern unsigned int max_bfs_queue_depth;
-
-#ifdef CONFIG_PROVE_LOCKING
-extern unsigned long lockdep_count_forward_deps(struct lock_class *);
-extern unsigned long lockdep_count_backward_deps(struct lock_class *);
-#else
-static inline unsigned long
-lockdep_count_forward_deps(struct lock_class *class)
-{
-	return 0;
-}
-static inline unsigned long
-lockdep_count_backward_deps(struct lock_class *class)
-{
-	return 0;
-}
-#endif
-
-#ifdef CONFIG_DEBUG_LOCKDEP
-
-#include <asm/local.h>
-/*
- * Various lockdep statistics.
- * We want them per cpu as they are often accessed in fast path
- * and we want to avoid too much cache bouncing.
- */
-struct lockdep_stats {
-	int	chain_lookup_hits;
-	int	chain_lookup_misses;
-	int	hardirqs_on_events;
-	int	hardirqs_off_events;
-	int	redundant_hardirqs_on;
-	int	redundant_hardirqs_off;
-	int	softirqs_on_events;
-	int	softirqs_off_events;
-	int	redundant_softirqs_on;
-	int	redundant_softirqs_off;
-	int	nr_unused_locks;
-	int	nr_cyclic_checks;
-	int	nr_cyclic_check_recursions;
-	int	nr_find_usage_forwards_checks;
-	int	nr_find_usage_forwards_recursions;
-	int	nr_find_usage_backwards_checks;
-	int	nr_find_usage_backwards_recursions;
-};
-
-DECLARE_PER_CPU(struct lockdep_stats, lockdep_stats);
-
-#define __debug_atomic_inc(ptr)					\
-	this_cpu_inc(lockdep_stats.ptr);
-
-#define debug_atomic_inc(ptr)			{		\
-	WARN_ON_ONCE(!irqs_disabled());				\
-	__this_cpu_inc(lockdep_stats.ptr);			\
-}
-
-#define debug_atomic_dec(ptr)			{		\
-	WARN_ON_ONCE(!irqs_disabled());				\
-	__this_cpu_dec(lockdep_stats.ptr);			\
-}
-
-#define debug_atomic_read(ptr)		({				\
-	struct lockdep_stats *__cpu_lockdep_stats;			\
-	unsigned long long __total = 0;					\
-	int __cpu;							\
-	for_each_possible_cpu(__cpu) {					\
-		__cpu_lockdep_stats = &per_cpu(lockdep_stats, __cpu);	\
-		__total += __cpu_lockdep_stats->ptr;			\
-	}								\
-	__total;							\
-})
-#else
-# define __debug_atomic_inc(ptr)	do { } while (0)
-# define debug_atomic_inc(ptr)		do { } while (0)
-# define debug_atomic_dec(ptr)		do { } while (0)
-# define debug_atomic_read(ptr)		0
-#endif
diff --git a/kernel/lockdep_proc.c b/kernel/lockdep_proc.c
deleted file mode 100644
index 09220656d888..000000000000
--- a/kernel/lockdep_proc.c
+++ /dev/null
@@ -1,683 +0,0 @@
-/*
- * kernel/lockdep_proc.c
- *
- * Runtime locking correctness validator
- *
- * Started by Ingo Molnar:
- *
- *  Copyright (C) 2006,2007 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
- *  Copyright (C) 2007 Red Hat, Inc., Peter Zijlstra <pzijlstr@redhat.com>
- *
- * Code for /proc/lockdep and /proc/lockdep_stats:
- *
- */
-#include <linux/export.h>
-#include <linux/proc_fs.h>
-#include <linux/seq_file.h>
-#include <linux/kallsyms.h>
-#include <linux/debug_locks.h>
-#include <linux/vmalloc.h>
-#include <linux/sort.h>
-#include <asm/uaccess.h>
-#include <asm/div64.h>
-
-#include "lockdep_internals.h"
-
-static void *l_next(struct seq_file *m, void *v, loff_t *pos)
-{
-	return seq_list_next(v, &all_lock_classes, pos);
-}
-
-static void *l_start(struct seq_file *m, loff_t *pos)
-{
-	return seq_list_start_head(&all_lock_classes, *pos);
-}
-
-static void l_stop(struct seq_file *m, void *v)
-{
-}
-
-static void print_name(struct seq_file *m, struct lock_class *class)
-{
-	char str[KSYM_NAME_LEN];
-	const char *name = class->name;
-
-	if (!name) {
-		name = __get_key_name(class->key, str);
-		seq_printf(m, "%s", name);
-	} else{
-		seq_printf(m, "%s", name);
-		if (class->name_version > 1)
-			seq_printf(m, "#%d", class->name_version);
-		if (class->subclass)
-			seq_printf(m, "/%d", class->subclass);
-	}
-}
-
-static int l_show(struct seq_file *m, void *v)
-{
-	struct lock_class *class = list_entry(v, struct lock_class, lock_entry);
-	struct lock_list *entry;
-	char usage[LOCK_USAGE_CHARS];
-
-	if (v == &all_lock_classes) {
-		seq_printf(m, "all lock classes:\n");
-		return 0;
-	}
-
-	seq_printf(m, "%p", class->key);
-#ifdef CONFIG_DEBUG_LOCKDEP
-	seq_printf(m, " OPS:%8ld", class->ops);
-#endif
-#ifdef CONFIG_PROVE_LOCKING
-	seq_printf(m, " FD:%5ld", lockdep_count_forward_deps(class));
-	seq_printf(m, " BD:%5ld", lockdep_count_backward_deps(class));
-#endif
-
-	get_usage_chars(class, usage);
-	seq_printf(m, " %s", usage);
-
-	seq_printf(m, ": ");
-	print_name(m, class);
-	seq_puts(m, "\n");
-
-	list_for_each_entry(entry, &class->locks_after, entry) {
-		if (entry->distance == 1) {
-			seq_printf(m, " -> [%p] ", entry->class->key);
-			print_name(m, entry->class);
-			seq_puts(m, "\n");
-		}
-	}
-	seq_puts(m, "\n");
-
-	return 0;
-}
-
-static const struct seq_operations lockdep_ops = {
-	.start	= l_start,
-	.next	= l_next,
-	.stop	= l_stop,
-	.show	= l_show,
-};
-
-static int lockdep_open(struct inode *inode, struct file *file)
-{
-	return seq_open(file, &lockdep_ops);
-}
-
-static const struct file_operations proc_lockdep_operations = {
-	.open		= lockdep_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= seq_release,
-};
-
-#ifdef CONFIG_PROVE_LOCKING
-static void *lc_start(struct seq_file *m, loff_t *pos)
-{
-	if (*pos == 0)
-		return SEQ_START_TOKEN;
-
-	if (*pos - 1 < nr_lock_chains)
-		return lock_chains + (*pos - 1);
-
-	return NULL;
-}
-
-static void *lc_next(struct seq_file *m, void *v, loff_t *pos)
-{
-	(*pos)++;
-	return lc_start(m, pos);
-}
-
-static void lc_stop(struct seq_file *m, void *v)
-{
-}
-
-static int lc_show(struct seq_file *m, void *v)
-{
-	struct lock_chain *chain = v;
-	struct lock_class *class;
-	int i;
-
-	if (v == SEQ_START_TOKEN) {
-		seq_printf(m, "all lock chains:\n");
-		return 0;
-	}
-
-	seq_printf(m, "irq_context: %d\n", chain->irq_context);
-
-	for (i = 0; i < chain->depth; i++) {
-		class = lock_chain_get_class(chain, i);
-		if (!class->key)
-			continue;
-
-		seq_printf(m, "[%p] ", class->key);
-		print_name(m, class);
-		seq_puts(m, "\n");
-	}
-	seq_puts(m, "\n");
-
-	return 0;
-}
-
-static const struct seq_operations lockdep_chains_ops = {
-	.start	= lc_start,
-	.next	= lc_next,
-	.stop	= lc_stop,
-	.show	= lc_show,
-};
-
-static int lockdep_chains_open(struct inode *inode, struct file *file)
-{
-	return seq_open(file, &lockdep_chains_ops);
-}
-
-static const struct file_operations proc_lockdep_chains_operations = {
-	.open		= lockdep_chains_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= seq_release,
-};
-#endif /* CONFIG_PROVE_LOCKING */
-
-static void lockdep_stats_debug_show(struct seq_file *m)
-{
-#ifdef CONFIG_DEBUG_LOCKDEP
-	unsigned long long hi1 = debug_atomic_read(hardirqs_on_events),
-			   hi2 = debug_atomic_read(hardirqs_off_events),
-			   hr1 = debug_atomic_read(redundant_hardirqs_on),
-			   hr2 = debug_atomic_read(redundant_hardirqs_off),
-			   si1 = debug_atomic_read(softirqs_on_events),
-			   si2 = debug_atomic_read(softirqs_off_events),
-			   sr1 = debug_atomic_read(redundant_softirqs_on),
-			   sr2 = debug_atomic_read(redundant_softirqs_off);
-
-	seq_printf(m, " chain lookup misses:           %11llu\n",
-		debug_atomic_read(chain_lookup_misses));
-	seq_printf(m, " chain lookup hits:             %11llu\n",
-		debug_atomic_read(chain_lookup_hits));
-	seq_printf(m, " cyclic checks:                 %11llu\n",
-		debug_atomic_read(nr_cyclic_checks));
-	seq_printf(m, " find-mask forwards checks:     %11llu\n",
-		debug_atomic_read(nr_find_usage_forwards_checks));
-	seq_printf(m, " find-mask backwards checks:    %11llu\n",
-		debug_atomic_read(nr_find_usage_backwards_checks));
-
-	seq_printf(m, " hardirq on events:             %11llu\n", hi1);
-	seq_printf(m, " hardirq off events:            %11llu\n", hi2);
-	seq_printf(m, " redundant hardirq ons:         %11llu\n", hr1);
-	seq_printf(m, " redundant hardirq offs:        %11llu\n", hr2);
-	seq_printf(m, " softirq on events:             %11llu\n", si1);
-	seq_printf(m, " softirq off events:            %11llu\n", si2);
-	seq_printf(m, " redundant softirq ons:         %11llu\n", sr1);
-	seq_printf(m, " redundant softirq offs:        %11llu\n", sr2);
-#endif
-}
-
-static int lockdep_stats_show(struct seq_file *m, void *v)
-{
-	struct lock_class *class;
-	unsigned long nr_unused = 0, nr_uncategorized = 0,
-		      nr_irq_safe = 0, nr_irq_unsafe = 0,
-		      nr_softirq_safe = 0, nr_softirq_unsafe = 0,
-		      nr_hardirq_safe = 0, nr_hardirq_unsafe = 0,
-		      nr_irq_read_safe = 0, nr_irq_read_unsafe = 0,
-		      nr_softirq_read_safe = 0, nr_softirq_read_unsafe = 0,
-		      nr_hardirq_read_safe = 0, nr_hardirq_read_unsafe = 0,
-		      sum_forward_deps = 0;
-
-	list_for_each_entry(class, &all_lock_classes, lock_entry) {
-
-		if (class->usage_mask == 0)
-			nr_unused++;
-		if (class->usage_mask == LOCKF_USED)
-			nr_uncategorized++;
-		if (class->usage_mask & LOCKF_USED_IN_IRQ)
-			nr_irq_safe++;
-		if (class->usage_mask & LOCKF_ENABLED_IRQ)
-			nr_irq_unsafe++;
-		if (class->usage_mask & LOCKF_USED_IN_SOFTIRQ)
-			nr_softirq_safe++;
-		if (class->usage_mask & LOCKF_ENABLED_SOFTIRQ)
-			nr_softirq_unsafe++;
-		if (class->usage_mask & LOCKF_USED_IN_HARDIRQ)
-			nr_hardirq_safe++;
-		if (class->usage_mask & LOCKF_ENABLED_HARDIRQ)
-			nr_hardirq_unsafe++;
-		if (class->usage_mask & LOCKF_USED_IN_IRQ_READ)
-			nr_irq_read_safe++;
-		if (class->usage_mask & LOCKF_ENABLED_IRQ_READ)
-			nr_irq_read_unsafe++;
-		if (class->usage_mask & LOCKF_USED_IN_SOFTIRQ_READ)
-			nr_softirq_read_safe++;
-		if (class->usage_mask & LOCKF_ENABLED_SOFTIRQ_READ)
-			nr_softirq_read_unsafe++;
-		if (class->usage_mask & LOCKF_USED_IN_HARDIRQ_READ)
-			nr_hardirq_read_safe++;
-		if (class->usage_mask & LOCKF_ENABLED_HARDIRQ_READ)
-			nr_hardirq_read_unsafe++;
-
-#ifdef CONFIG_PROVE_LOCKING
-		sum_forward_deps += lockdep_count_forward_deps(class);
-#endif
-	}
-#ifdef CONFIG_DEBUG_LOCKDEP
-	DEBUG_LOCKS_WARN_ON(debug_atomic_read(nr_unused_locks) != nr_unused);
-#endif
-	seq_printf(m, " lock-classes:                  %11lu [max: %lu]\n",
-			nr_lock_classes, MAX_LOCKDEP_KEYS);
-	seq_printf(m, " direct dependencies:           %11lu [max: %lu]\n",
-			nr_list_entries, MAX_LOCKDEP_ENTRIES);
-	seq_printf(m, " indirect dependencies:         %11lu\n",
-			sum_forward_deps);
-
-	/*
-	 * Total number of dependencies:
-	 *
-	 * All irq-safe locks may nest inside irq-unsafe locks,
-	 * plus all the other known dependencies:
-	 */
-	seq_printf(m, " all direct dependencies:       %11lu\n",
-			nr_irq_unsafe * nr_irq_safe +
-			nr_hardirq_unsafe * nr_hardirq_safe +
-			nr_list_entries);
-
-#ifdef CONFIG_PROVE_LOCKING
-	seq_printf(m, " dependency chains:             %11lu [max: %lu]\n",
-			nr_lock_chains, MAX_LOCKDEP_CHAINS);
-	seq_printf(m, " dependency chain hlocks:       %11d [max: %lu]\n",
-			nr_chain_hlocks, MAX_LOCKDEP_CHAIN_HLOCKS);
-#endif
-
-#ifdef CONFIG_TRACE_IRQFLAGS
-	seq_printf(m, " in-hardirq chains:             %11u\n",
-			nr_hardirq_chains);
-	seq_printf(m, " in-softirq chains:             %11u\n",
-			nr_softirq_chains);
-#endif
-	seq_printf(m, " in-process chains:             %11u\n",
-			nr_process_chains);
-	seq_printf(m, " stack-trace entries:           %11lu [max: %lu]\n",
-			nr_stack_trace_entries, MAX_STACK_TRACE_ENTRIES);
-	seq_printf(m, " combined max dependencies:     %11u\n",
-			(nr_hardirq_chains + 1) *
-			(nr_softirq_chains + 1) *
-			(nr_process_chains + 1)
-	);
-	seq_printf(m, " hardirq-safe locks:            %11lu\n",
-			nr_hardirq_safe);
-	seq_printf(m, " hardirq-unsafe locks:          %11lu\n",
-			nr_hardirq_unsafe);
-	seq_printf(m, " softirq-safe locks:            %11lu\n",
-			nr_softirq_safe);
-	seq_printf(m, " softirq-unsafe locks:          %11lu\n",
-			nr_softirq_unsafe);
-	seq_printf(m, " irq-safe locks:                %11lu\n",
-			nr_irq_safe);
-	seq_printf(m, " irq-unsafe locks:              %11lu\n",
-			nr_irq_unsafe);
-
-	seq_printf(m, " hardirq-read-safe locks:       %11lu\n",
-			nr_hardirq_read_safe);
-	seq_printf(m, " hardirq-read-unsafe locks:     %11lu\n",
-			nr_hardirq_read_unsafe);
-	seq_printf(m, " softirq-read-safe locks:       %11lu\n",
-			nr_softirq_read_safe);
-	seq_printf(m, " softirq-read-unsafe locks:     %11lu\n",
-			nr_softirq_read_unsafe);
-	seq_printf(m, " irq-read-safe locks:           %11lu\n",
-			nr_irq_read_safe);
-	seq_printf(m, " irq-read-unsafe locks:         %11lu\n",
-			nr_irq_read_unsafe);
-
-	seq_printf(m, " uncategorized locks:           %11lu\n",
-			nr_uncategorized);
-	seq_printf(m, " unused locks:                  %11lu\n",
-			nr_unused);
-	seq_printf(m, " max locking depth:             %11u\n",
-			max_lockdep_depth);
-#ifdef CONFIG_PROVE_LOCKING
-	seq_printf(m, " max bfs queue depth:           %11u\n",
-			max_bfs_queue_depth);
-#endif
-	lockdep_stats_debug_show(m);
-	seq_printf(m, " debug_locks:                   %11u\n",
-			debug_locks);
-
-	return 0;
-}
-
-static int lockdep_stats_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, lockdep_stats_show, NULL);
-}
-
-static const struct file_operations proc_lockdep_stats_operations = {
-	.open		= lockdep_stats_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
-#ifdef CONFIG_LOCK_STAT
-
-struct lock_stat_data {
-	struct lock_class *class;
-	struct lock_class_stats stats;
-};
-
-struct lock_stat_seq {
-	struct lock_stat_data *iter_end;
-	struct lock_stat_data stats[MAX_LOCKDEP_KEYS];
-};
-
-/*
- * sort on absolute number of contentions
- */
-static int lock_stat_cmp(const void *l, const void *r)
-{
-	const struct lock_stat_data *dl = l, *dr = r;
-	unsigned long nl, nr;
-
-	nl = dl->stats.read_waittime.nr + dl->stats.write_waittime.nr;
-	nr = dr->stats.read_waittime.nr + dr->stats.write_waittime.nr;
-
-	return nr - nl;
-}
-
-static void seq_line(struct seq_file *m, char c, int offset, int length)
-{
-	int i;
-
-	for (i = 0; i < offset; i++)
-		seq_puts(m, " ");
-	for (i = 0; i < length; i++)
-		seq_printf(m, "%c", c);
-	seq_puts(m, "\n");
-}
-
-static void snprint_time(char *buf, size_t bufsiz, s64 nr)
-{
-	s64 div;
-	s32 rem;
-
-	nr += 5; /* for display rounding */
-	div = div_s64_rem(nr, 1000, &rem);
-	snprintf(buf, bufsiz, "%lld.%02d", (long long)div, (int)rem/10);
-}
-
-static void seq_time(struct seq_file *m, s64 time)
-{
-	char num[15];
-
-	snprint_time(num, sizeof(num), time);
-	seq_printf(m, " %14s", num);
-}
-
-static void seq_lock_time(struct seq_file *m, struct lock_time *lt)
-{
-	seq_printf(m, "%14lu", lt->nr);
-	seq_time(m, lt->min);
-	seq_time(m, lt->max);
-	seq_time(m, lt->total);
-	seq_time(m, lt->nr ? do_div(lt->total, lt->nr) : 0);
-}
-
-static void seq_stats(struct seq_file *m, struct lock_stat_data *data)
-{
-	char name[39];
-	struct lock_class *class;
-	struct lock_class_stats *stats;
-	int i, namelen;
-
-	class = data->class;
-	stats = &data->stats;
-
-	namelen = 38;
-	if (class->name_version > 1)
-		namelen -= 2; /* XXX truncates versions > 9 */
-	if (class->subclass)
-		namelen -= 2;
-
-	if (!class->name) {
-		char str[KSYM_NAME_LEN];
-		const char *key_name;
-
-		key_name = __get_key_name(class->key, str);
-		snprintf(name, namelen, "%s", key_name);
-	} else {
-		snprintf(name, namelen, "%s", class->name);
-	}
-	namelen = strlen(name);
-	if (class->name_version > 1) {
-		snprintf(name+namelen, 3, "#%d", class->name_version);
-		namelen += 2;
-	}
-	if (class->subclass) {
-		snprintf(name+namelen, 3, "/%d", class->subclass);
-		namelen += 2;
-	}
-
-	if (stats->write_holdtime.nr) {
-		if (stats->read_holdtime.nr)
-			seq_printf(m, "%38s-W:", name);
-		else
-			seq_printf(m, "%40s:", name);
-
-		seq_printf(m, "%14lu ", stats->bounces[bounce_contended_write]);
-		seq_lock_time(m, &stats->write_waittime);
-		seq_printf(m, " %14lu ", stats->bounces[bounce_acquired_write]);
-		seq_lock_time(m, &stats->write_holdtime);
-		seq_puts(m, "\n");
-	}
-
-	if (stats->read_holdtime.nr) {
-		seq_printf(m, "%38s-R:", name);
-		seq_printf(m, "%14lu ", stats->bounces[bounce_contended_read]);
-		seq_lock_time(m, &stats->read_waittime);
-		seq_printf(m, " %14lu ", stats->bounces[bounce_acquired_read]);
-		seq_lock_time(m, &stats->read_holdtime);
-		seq_puts(m, "\n");
-	}
-
-	if (stats->read_waittime.nr + stats->write_waittime.nr == 0)
-		return;
-
-	if (stats->read_holdtime.nr)
-		namelen += 2;
-
-	for (i = 0; i < LOCKSTAT_POINTS; i++) {
-		char ip[32];
-
-		if (class->contention_point[i] == 0)
-			break;
-
-		if (!i)
-			seq_line(m, '-', 40-namelen, namelen);
-
-		snprintf(ip, sizeof(ip), "[<%p>]",
-				(void *)class->contention_point[i]);
-		seq_printf(m, "%40s %14lu %29s %pS\n",
-			   name, stats->contention_point[i],
-			   ip, (void *)class->contention_point[i]);
-	}
-	for (i = 0; i < LOCKSTAT_POINTS; i++) {
-		char ip[32];
-
-		if (class->contending_point[i] == 0)
-			break;
-
-		if (!i)
-			seq_line(m, '-', 40-namelen, namelen);
-
-		snprintf(ip, sizeof(ip), "[<%p>]",
-				(void *)class->contending_point[i]);
-		seq_printf(m, "%40s %14lu %29s %pS\n",
-			   name, stats->contending_point[i],
-			   ip, (void *)class->contending_point[i]);
-	}
-	if (i) {
-		seq_puts(m, "\n");
-		seq_line(m, '.', 0, 40 + 1 + 12 * (14 + 1));
-		seq_puts(m, "\n");
-	}
-}
-
-static void seq_header(struct seq_file *m)
-{
-	seq_puts(m, "lock_stat version 0.4\n");
-
-	if (unlikely(!debug_locks))
-		seq_printf(m, "*WARNING* lock debugging disabled!! - possibly due to a lockdep warning\n");
-
-	seq_line(m, '-', 0, 40 + 1 + 12 * (14 + 1));
-	seq_printf(m, "%40s %14s %14s %14s %14s %14s %14s %14s %14s %14s %14s "
-			"%14s %14s\n",
-			"class name",
-			"con-bounces",
-			"contentions",
-			"waittime-min",
-			"waittime-max",
-			"waittime-total",
-			"waittime-avg",
-			"acq-bounces",
-			"acquisitions",
-			"holdtime-min",
-			"holdtime-max",
-			"holdtime-total",
-			"holdtime-avg");
-	seq_line(m, '-', 0, 40 + 1 + 12 * (14 + 1));
-	seq_printf(m, "\n");
-}
-
-static void *ls_start(struct seq_file *m, loff_t *pos)
-{
-	struct lock_stat_seq *data = m->private;
-	struct lock_stat_data *iter;
-
-	if (*pos == 0)
-		return SEQ_START_TOKEN;
-
-	iter = data->stats + (*pos - 1);
-	if (iter >= data->iter_end)
-		iter = NULL;
-
-	return iter;
-}
-
-static void *ls_next(struct seq_file *m, void *v, loff_t *pos)
-{
-	(*pos)++;
-	return ls_start(m, pos);
-}
-
-static void ls_stop(struct seq_file *m, void *v)
-{
-}
-
-static int ls_show(struct seq_file *m, void *v)
-{
-	if (v == SEQ_START_TOKEN)
-		seq_header(m);
-	else
-		seq_stats(m, v);
-
-	return 0;
-}
-
-static const struct seq_operations lockstat_ops = {
-	.start	= ls_start,
-	.next	= ls_next,
-	.stop	= ls_stop,
-	.show	= ls_show,
-};
-
-static int lock_stat_open(struct inode *inode, struct file *file)
-{
-	int res;
-	struct lock_class *class;
-	struct lock_stat_seq *data = vmalloc(sizeof(struct lock_stat_seq));
-
-	if (!data)
-		return -ENOMEM;
-
-	res = seq_open(file, &lockstat_ops);
-	if (!res) {
-		struct lock_stat_data *iter = data->stats;
-		struct seq_file *m = file->private_data;
-
-		list_for_each_entry(class, &all_lock_classes, lock_entry) {
-			iter->class = class;
-			iter->stats = lock_stats(class);
-			iter++;
-		}
-		data->iter_end = iter;
-
-		sort(data->stats, data->iter_end - data->stats,
-				sizeof(struct lock_stat_data),
-				lock_stat_cmp, NULL);
-
-		m->private = data;
-	} else
-		vfree(data);
-
-	return res;
-}
-
-static ssize_t lock_stat_write(struct file *file, const char __user *buf,
-			       size_t count, loff_t *ppos)
-{
-	struct lock_class *class;
-	char c;
-
-	if (count) {
-		if (get_user(c, buf))
-			return -EFAULT;
-
-		if (c != '0')
-			return count;
-
-		list_for_each_entry(class, &all_lock_classes, lock_entry)
-			clear_lock_stats(class);
-	}
-	return count;
-}
-
-static int lock_stat_release(struct inode *inode, struct file *file)
-{
-	struct seq_file *seq = file->private_data;
-
-	vfree(seq->private);
-	return seq_release(inode, file);
-}
-
-static const struct file_operations proc_lock_stat_operations = {
-	.open		= lock_stat_open,
-	.write		= lock_stat_write,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= lock_stat_release,
-};
-#endif /* CONFIG_LOCK_STAT */
-
-static int __init lockdep_proc_init(void)
-{
-	proc_create("lockdep", S_IRUSR, NULL, &proc_lockdep_operations);
-#ifdef CONFIG_PROVE_LOCKING
-	proc_create("lockdep_chains", S_IRUSR, NULL,
-		    &proc_lockdep_chains_operations);
-#endif
-	proc_create("lockdep_stats", S_IRUSR, NULL,
-		    &proc_lockdep_stats_operations);
-
-#ifdef CONFIG_LOCK_STAT
-	proc_create("lock_stat", S_IRUSR | S_IWUSR, NULL,
-		    &proc_lock_stat_operations);
-#endif
-
-	return 0;
-}
-
-__initcall(lockdep_proc_init);
-
diff --git a/kernel/lockdep_states.h b/kernel/lockdep_states.h
deleted file mode 100644
index 995b0cc2b84c..000000000000
--- a/kernel/lockdep_states.h
+++ /dev/null
@@ -1,9 +0,0 @@
-/*
- * Lockdep states,
- *
- * please update XXX_LOCK_USAGE_STATES in include/linux/lockdep.h whenever
- * you add one, or come up with a nice dynamic solution.
- */
-LOCKDEP_STATE(HARDIRQ)
-LOCKDEP_STATE(SOFTIRQ)
-LOCKDEP_STATE(RECLAIM_FS)
diff --git a/kernel/locking/Makefile b/kernel/locking/Makefile
index fe8bd58b22f8..c103599fc1ba 100644
--- a/kernel/locking/Makefile
+++ b/kernel/locking/Makefile
@@ -2,8 +2,14 @@
 obj-y += mutex.o
 
 ifdef CONFIG_FUNCTION_TRACER
+CFLAGS_REMOVE_lockdep.o = -pg
+CFLAGS_REMOVE_lockdep_proc.o = -pg
 CFLAGS_REMOVE_mutex-debug.o = -pg
 CFLAGS_REMOVE_rtmutex-debug.o = -pg
 endif
 
 obj-$(CONFIG_DEBUG_MUTEXES) += mutex-debug.o
+obj-$(CONFIG_LOCKDEP) += lockdep.o
+ifeq ($(CONFIG_PROC_FS),y)
+obj-$(CONFIG_LOCKDEP) += lockdep_proc.o
+endif
diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
new file mode 100644
index 000000000000..4e8e14c34e42
--- /dev/null
+++ b/kernel/locking/lockdep.c
@@ -0,0 +1,4257 @@
+/*
+ * kernel/lockdep.c
+ *
+ * Runtime locking correctness validator
+ *
+ * Started by Ingo Molnar:
+ *
+ *  Copyright (C) 2006,2007 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
+ *  Copyright (C) 2007 Red Hat, Inc., Peter Zijlstra <pzijlstr@redhat.com>
+ *
+ * this code maps all the lock dependencies as they occur in a live kernel
+ * and will warn about the following classes of locking bugs:
+ *
+ * - lock inversion scenarios
+ * - circular lock dependencies
+ * - hardirq/softirq safe/unsafe locking bugs
+ *
+ * Bugs are reported even if the current locking scenario does not cause
+ * any deadlock at this point.
+ *
+ * I.e. if anytime in the past two locks were taken in a different order,
+ * even if it happened for another task, even if those were different
+ * locks (but of the same class as this lock), this code will detect it.
+ *
+ * Thanks to Arjan van de Ven for coming up with the initial idea of
+ * mapping lock dependencies runtime.
+ */
+#define DISABLE_BRANCH_PROFILING
+#include <linux/mutex.h>
+#include <linux/sched.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/spinlock.h>
+#include <linux/kallsyms.h>
+#include <linux/interrupt.h>
+#include <linux/stacktrace.h>
+#include <linux/debug_locks.h>
+#include <linux/irqflags.h>
+#include <linux/utsname.h>
+#include <linux/hash.h>
+#include <linux/ftrace.h>
+#include <linux/stringify.h>
+#include <linux/bitops.h>
+#include <linux/gfp.h>
+#include <linux/kmemcheck.h>
+
+#include <asm/sections.h>
+
+#include "lockdep_internals.h"
+
+#define CREATE_TRACE_POINTS
+#include <trace/events/lock.h>
+
+#ifdef CONFIG_PROVE_LOCKING
+int prove_locking = 1;
+module_param(prove_locking, int, 0644);
+#else
+#define prove_locking 0
+#endif
+
+#ifdef CONFIG_LOCK_STAT
+int lock_stat = 1;
+module_param(lock_stat, int, 0644);
+#else
+#define lock_stat 0
+#endif
+
+/*
+ * lockdep_lock: protects the lockdep graph, the hashes and the
+ *               class/list/hash allocators.
+ *
+ * This is one of the rare exceptions where it's justified
+ * to use a raw spinlock - we really dont want the spinlock
+ * code to recurse back into the lockdep code...
+ */
+static arch_spinlock_t lockdep_lock = (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED;
+
+static int graph_lock(void)
+{
+	arch_spin_lock(&lockdep_lock);
+	/*
+	 * Make sure that if another CPU detected a bug while
+	 * walking the graph we dont change it (while the other
+	 * CPU is busy printing out stuff with the graph lock
+	 * dropped already)
+	 */
+	if (!debug_locks) {
+		arch_spin_unlock(&lockdep_lock);
+		return 0;
+	}
+	/* prevent any recursions within lockdep from causing deadlocks */
+	current->lockdep_recursion++;
+	return 1;
+}
+
+static inline int graph_unlock(void)
+{
+	if (debug_locks && !arch_spin_is_locked(&lockdep_lock)) {
+		/*
+		 * The lockdep graph lock isn't locked while we expect it to
+		 * be, we're confused now, bye!
+		 */
+		return DEBUG_LOCKS_WARN_ON(1);
+	}
+
+	current->lockdep_recursion--;
+	arch_spin_unlock(&lockdep_lock);
+	return 0;
+}
+
+/*
+ * Turn lock debugging off and return with 0 if it was off already,
+ * and also release the graph lock:
+ */
+static inline int debug_locks_off_graph_unlock(void)
+{
+	int ret = debug_locks_off();
+
+	arch_spin_unlock(&lockdep_lock);
+
+	return ret;
+}
+
+static int lockdep_initialized;
+
+unsigned long nr_list_entries;
+static struct lock_list list_entries[MAX_LOCKDEP_ENTRIES];
+
+/*
+ * All data structures here are protected by the global debug_lock.
+ *
+ * Mutex key structs only get allocated, once during bootup, and never
+ * get freed - this significantly simplifies the debugging code.
+ */
+unsigned long nr_lock_classes;
+static struct lock_class lock_classes[MAX_LOCKDEP_KEYS];
+
+static inline struct lock_class *hlock_class(struct held_lock *hlock)
+{
+	if (!hlock->class_idx) {
+		/*
+		 * Someone passed in garbage, we give up.
+		 */
+		DEBUG_LOCKS_WARN_ON(1);
+		return NULL;
+	}
+	return lock_classes + hlock->class_idx - 1;
+}
+
+#ifdef CONFIG_LOCK_STAT
+static DEFINE_PER_CPU(struct lock_class_stats[MAX_LOCKDEP_KEYS],
+		      cpu_lock_stats);
+
+static inline u64 lockstat_clock(void)
+{
+	return local_clock();
+}
+
+static int lock_point(unsigned long points[], unsigned long ip)
+{
+	int i;
+
+	for (i = 0; i < LOCKSTAT_POINTS; i++) {
+		if (points[i] == 0) {
+			points[i] = ip;
+			break;
+		}
+		if (points[i] == ip)
+			break;
+	}
+
+	return i;
+}
+
+static void lock_time_inc(struct lock_time *lt, u64 time)
+{
+	if (time > lt->max)
+		lt->max = time;
+
+	if (time < lt->min || !lt->nr)
+		lt->min = time;
+
+	lt->total += time;
+	lt->nr++;
+}
+
+static inline void lock_time_add(struct lock_time *src, struct lock_time *dst)
+{
+	if (!src->nr)
+		return;
+
+	if (src->max > dst->max)
+		dst->max = src->max;
+
+	if (src->min < dst->min || !dst->nr)
+		dst->min = src->min;
+
+	dst->total += src->total;
+	dst->nr += src->nr;
+}
+
+struct lock_class_stats lock_stats(struct lock_class *class)
+{
+	struct lock_class_stats stats;
+	int cpu, i;
+
+	memset(&stats, 0, sizeof(struct lock_class_stats));
+	for_each_possible_cpu(cpu) {
+		struct lock_class_stats *pcs =
+			&per_cpu(cpu_lock_stats, cpu)[class - lock_classes];
+
+		for (i = 0; i < ARRAY_SIZE(stats.contention_point); i++)
+			stats.contention_point[i] += pcs->contention_point[i];
+
+		for (i = 0; i < ARRAY_SIZE(stats.contending_point); i++)
+			stats.contending_point[i] += pcs->contending_point[i];
+
+		lock_time_add(&pcs->read_waittime, &stats.read_waittime);
+		lock_time_add(&pcs->write_waittime, &stats.write_waittime);
+
+		lock_time_add(&pcs->read_holdtime, &stats.read_holdtime);
+		lock_time_add(&pcs->write_holdtime, &stats.write_holdtime);
+
+		for (i = 0; i < ARRAY_SIZE(stats.bounces); i++)
+			stats.bounces[i] += pcs->bounces[i];
+	}
+
+	return stats;
+}
+
+void clear_lock_stats(struct lock_class *class)
+{
+	int cpu;
+
+	for_each_possible_cpu(cpu) {
+		struct lock_class_stats *cpu_stats =
+			&per_cpu(cpu_lock_stats, cpu)[class - lock_classes];
+
+		memset(cpu_stats, 0, sizeof(struct lock_class_stats));
+	}
+	memset(class->contention_point, 0, sizeof(class->contention_point));
+	memset(class->contending_point, 0, sizeof(class->contending_point));
+}
+
+static struct lock_class_stats *get_lock_stats(struct lock_class *class)
+{
+	return &get_cpu_var(cpu_lock_stats)[class - lock_classes];
+}
+
+static void put_lock_stats(struct lock_class_stats *stats)
+{
+	put_cpu_var(cpu_lock_stats);
+}
+
+static void lock_release_holdtime(struct held_lock *hlock)
+{
+	struct lock_class_stats *stats;
+	u64 holdtime;
+
+	if (!lock_stat)
+		return;
+
+	holdtime = lockstat_clock() - hlock->holdtime_stamp;
+
+	stats = get_lock_stats(hlock_class(hlock));
+	if (hlock->read)
+		lock_time_inc(&stats->read_holdtime, holdtime);
+	else
+		lock_time_inc(&stats->write_holdtime, holdtime);
+	put_lock_stats(stats);
+}
+#else
+static inline void lock_release_holdtime(struct held_lock *hlock)
+{
+}
+#endif
+
+/*
+ * We keep a global list of all lock classes. The list only grows,
+ * never shrinks. The list is only accessed with the lockdep
+ * spinlock lock held.
+ */
+LIST_HEAD(all_lock_classes);
+
+/*
+ * The lockdep classes are in a hash-table as well, for fast lookup:
+ */
+#define CLASSHASH_BITS		(MAX_LOCKDEP_KEYS_BITS - 1)
+#define CLASSHASH_SIZE		(1UL << CLASSHASH_BITS)
+#define __classhashfn(key)	hash_long((unsigned long)key, CLASSHASH_BITS)
+#define classhashentry(key)	(classhash_table + __classhashfn((key)))
+
+static struct list_head classhash_table[CLASSHASH_SIZE];
+
+/*
+ * We put the lock dependency chains into a hash-table as well, to cache
+ * their existence:
+ */
+#define CHAINHASH_BITS		(MAX_LOCKDEP_CHAINS_BITS-1)
+#define CHAINHASH_SIZE		(1UL << CHAINHASH_BITS)
+#define __chainhashfn(chain)	hash_long(chain, CHAINHASH_BITS)
+#define chainhashentry(chain)	(chainhash_table + __chainhashfn((chain)))
+
+static struct list_head chainhash_table[CHAINHASH_SIZE];
+
+/*
+ * The hash key of the lock dependency chains is a hash itself too:
+ * it's a hash of all locks taken up to that lock, including that lock.
+ * It's a 64-bit hash, because it's important for the keys to be
+ * unique.
+ */
+#define iterate_chain_key(key1, key2) \
+	(((key1) << MAX_LOCKDEP_KEYS_BITS) ^ \
+	((key1) >> (64-MAX_LOCKDEP_KEYS_BITS)) ^ \
+	(key2))
+
+void lockdep_off(void)
+{
+	current->lockdep_recursion++;
+}
+EXPORT_SYMBOL(lockdep_off);
+
+void lockdep_on(void)
+{
+	current->lockdep_recursion--;
+}
+EXPORT_SYMBOL(lockdep_on);
+
+/*
+ * Debugging switches:
+ */
+
+#define VERBOSE			0
+#define VERY_VERBOSE		0
+
+#if VERBOSE
+# define HARDIRQ_VERBOSE	1
+# define SOFTIRQ_VERBOSE	1
+# define RECLAIM_VERBOSE	1
+#else
+# define HARDIRQ_VERBOSE	0
+# define SOFTIRQ_VERBOSE	0
+# define RECLAIM_VERBOSE	0
+#endif
+
+#if VERBOSE || HARDIRQ_VERBOSE || SOFTIRQ_VERBOSE || RECLAIM_VERBOSE
+/*
+ * Quick filtering for interesting events:
+ */
+static int class_filter(struct lock_class *class)
+{
+#if 0
+	/* Example */
+	if (class->name_version == 1 &&
+			!strcmp(class->name, "lockname"))
+		return 1;
+	if (class->name_version == 1 &&
+			!strcmp(class->name, "&struct->lockfield"))
+		return 1;
+#endif
+	/* Filter everything else. 1 would be to allow everything else */
+	return 0;
+}
+#endif
+
+static int verbose(struct lock_class *class)
+{
+#if VERBOSE
+	return class_filter(class);
+#endif
+	return 0;
+}
+
+/*
+ * Stack-trace: tightly packed array of stack backtrace
+ * addresses. Protected by the graph_lock.
+ */
+unsigned long nr_stack_trace_entries;
+static unsigned long stack_trace[MAX_STACK_TRACE_ENTRIES];
+
+static void print_lockdep_off(const char *bug_msg)
+{
+	printk(KERN_DEBUG "%s\n", bug_msg);
+	printk(KERN_DEBUG "turning off the locking correctness validator.\n");
+	printk(KERN_DEBUG "Please attach the output of /proc/lock_stat to the bug report\n");
+}
+
+static int save_trace(struct stack_trace *trace)
+{
+	trace->nr_entries = 0;
+	trace->max_entries = MAX_STACK_TRACE_ENTRIES - nr_stack_trace_entries;
+	trace->entries = stack_trace + nr_stack_trace_entries;
+
+	trace->skip = 3;
+
+	save_stack_trace(trace);
+
+	/*
+	 * Some daft arches put -1 at the end to indicate its a full trace.
+	 *
+	 * <rant> this is buggy anyway, since it takes a whole extra entry so a
+	 * complete trace that maxes out the entries provided will be reported
+	 * as incomplete, friggin useless </rant>
+	 */
+	if (trace->nr_entries != 0 &&
+	    trace->entries[trace->nr_entries-1] == ULONG_MAX)
+		trace->nr_entries--;
+
+	trace->max_entries = trace->nr_entries;
+
+	nr_stack_trace_entries += trace->nr_entries;
+
+	if (nr_stack_trace_entries >= MAX_STACK_TRACE_ENTRIES-1) {
+		if (!debug_locks_off_graph_unlock())
+			return 0;
+
+		print_lockdep_off("BUG: MAX_STACK_TRACE_ENTRIES too low!");
+		dump_stack();
+
+		return 0;
+	}
+
+	return 1;
+}
+
+unsigned int nr_hardirq_chains;
+unsigned int nr_softirq_chains;
+unsigned int nr_process_chains;
+unsigned int max_lockdep_depth;
+
+#ifdef CONFIG_DEBUG_LOCKDEP
+/*
+ * We cannot printk in early bootup code. Not even early_printk()
+ * might work. So we mark any initialization errors and printk
+ * about it later on, in lockdep_info().
+ */
+static int lockdep_init_error;
+static const char *lock_init_error;
+static unsigned long lockdep_init_trace_data[20];
+static struct stack_trace lockdep_init_trace = {
+	.max_entries = ARRAY_SIZE(lockdep_init_trace_data),
+	.entries = lockdep_init_trace_data,
+};
+
+/*
+ * Various lockdep statistics:
+ */
+DEFINE_PER_CPU(struct lockdep_stats, lockdep_stats);
+#endif
+
+/*
+ * Locking printouts:
+ */
+
+#define __USAGE(__STATE)						\
+	[LOCK_USED_IN_##__STATE] = "IN-"__stringify(__STATE)"-W",	\
+	[LOCK_ENABLED_##__STATE] = __stringify(__STATE)"-ON-W",		\
+	[LOCK_USED_IN_##__STATE##_READ] = "IN-"__stringify(__STATE)"-R",\
+	[LOCK_ENABLED_##__STATE##_READ] = __stringify(__STATE)"-ON-R",
+
+static const char *usage_str[] =
+{
+#define LOCKDEP_STATE(__STATE) __USAGE(__STATE)
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
+	[LOCK_USED] = "INITIAL USE",
+};
+
+const char * __get_key_name(struct lockdep_subclass_key *key, char *str)
+{
+	return kallsyms_lookup((unsigned long)key, NULL, NULL, NULL, str);
+}
+
+static inline unsigned long lock_flag(enum lock_usage_bit bit)
+{
+	return 1UL << bit;
+}
+
+static char get_usage_char(struct lock_class *class, enum lock_usage_bit bit)
+{
+	char c = '.';
+
+	if (class->usage_mask & lock_flag(bit + 2))
+		c = '+';
+	if (class->usage_mask & lock_flag(bit)) {
+		c = '-';
+		if (class->usage_mask & lock_flag(bit + 2))
+			c = '?';
+	}
+
+	return c;
+}
+
+void get_usage_chars(struct lock_class *class, char usage[LOCK_USAGE_CHARS])
+{
+	int i = 0;
+
+#define LOCKDEP_STATE(__STATE) 						\
+	usage[i++] = get_usage_char(class, LOCK_USED_IN_##__STATE);	\
+	usage[i++] = get_usage_char(class, LOCK_USED_IN_##__STATE##_READ);
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
+
+	usage[i] = '\0';
+}
+
+static void __print_lock_name(struct lock_class *class)
+{
+	char str[KSYM_NAME_LEN];
+	const char *name;
+
+	name = class->name;
+	if (!name) {
+		name = __get_key_name(class->key, str);
+		printk("%s", name);
+	} else {
+		printk("%s", name);
+		if (class->name_version > 1)
+			printk("#%d", class->name_version);
+		if (class->subclass)
+			printk("/%d", class->subclass);
+	}
+}
+
+static void print_lock_name(struct lock_class *class)
+{
+	char usage[LOCK_USAGE_CHARS];
+
+	get_usage_chars(class, usage);
+
+	printk(" (");
+	__print_lock_name(class);
+	printk("){%s}", usage);
+}
+
+static void print_lockdep_cache(struct lockdep_map *lock)
+{
+	const char *name;
+	char str[KSYM_NAME_LEN];
+
+	name = lock->name;
+	if (!name)
+		name = __get_key_name(lock->key->subkeys, str);
+
+	printk("%s", name);
+}
+
+static void print_lock(struct held_lock *hlock)
+{
+	print_lock_name(hlock_class(hlock));
+	printk(", at: ");
+	print_ip_sym(hlock->acquire_ip);
+}
+
+static void lockdep_print_held_locks(struct task_struct *curr)
+{
+	int i, depth = curr->lockdep_depth;
+
+	if (!depth) {
+		printk("no locks held by %s/%d.\n", curr->comm, task_pid_nr(curr));
+		return;
+	}
+	printk("%d lock%s held by %s/%d:\n",
+		depth, depth > 1 ? "s" : "", curr->comm, task_pid_nr(curr));
+
+	for (i = 0; i < depth; i++) {
+		printk(" #%d: ", i);
+		print_lock(curr->held_locks + i);
+	}
+}
+
+static void print_kernel_ident(void)
+{
+	printk("%s %.*s %s\n", init_utsname()->release,
+		(int)strcspn(init_utsname()->version, " "),
+		init_utsname()->version,
+		print_tainted());
+}
+
+static int very_verbose(struct lock_class *class)
+{
+#if VERY_VERBOSE
+	return class_filter(class);
+#endif
+	return 0;
+}
+
+/*
+ * Is this the address of a static object:
+ */
+static int static_obj(void *obj)
+{
+	unsigned long start = (unsigned long) &_stext,
+		      end   = (unsigned long) &_end,
+		      addr  = (unsigned long) obj;
+
+	/*
+	 * static variable?
+	 */
+	if ((addr >= start) && (addr < end))
+		return 1;
+
+	if (arch_is_kernel_data(addr))
+		return 1;
+
+	/*
+	 * in-kernel percpu var?
+	 */
+	if (is_kernel_percpu_address(addr))
+		return 1;
+
+	/*
+	 * module static or percpu var?
+	 */
+	return is_module_address(addr) || is_module_percpu_address(addr);
+}
+
+/*
+ * To make lock name printouts unique, we calculate a unique
+ * class->name_version generation counter:
+ */
+static int count_matching_names(struct lock_class *new_class)
+{
+	struct lock_class *class;
+	int count = 0;
+
+	if (!new_class->name)
+		return 0;
+
+	list_for_each_entry(class, &all_lock_classes, lock_entry) {
+		if (new_class->key - new_class->subclass == class->key)
+			return class->name_version;
+		if (class->name && !strcmp(class->name, new_class->name))
+			count = max(count, class->name_version);
+	}
+
+	return count + 1;
+}
+
+/*
+ * Register a lock's class in the hash-table, if the class is not present
+ * yet. Otherwise we look it up. We cache the result in the lock object
+ * itself, so actual lookup of the hash should be once per lock object.
+ */
+static inline struct lock_class *
+look_up_lock_class(struct lockdep_map *lock, unsigned int subclass)
+{
+	struct lockdep_subclass_key *key;
+	struct list_head *hash_head;
+	struct lock_class *class;
+
+#ifdef CONFIG_DEBUG_LOCKDEP
+	/*
+	 * If the architecture calls into lockdep before initializing
+	 * the hashes then we'll warn about it later. (we cannot printk
+	 * right now)
+	 */
+	if (unlikely(!lockdep_initialized)) {
+		lockdep_init();
+		lockdep_init_error = 1;
+		lock_init_error = lock->name;
+		save_stack_trace(&lockdep_init_trace);
+	}
+#endif
+
+	if (unlikely(subclass >= MAX_LOCKDEP_SUBCLASSES)) {
+		debug_locks_off();
+		printk(KERN_ERR
+			"BUG: looking up invalid subclass: %u\n", subclass);
+		printk(KERN_ERR
+			"turning off the locking correctness validator.\n");
+		dump_stack();
+		return NULL;
+	}
+
+	/*
+	 * Static locks do not have their class-keys yet - for them the key
+	 * is the lock object itself:
+	 */
+	if (unlikely(!lock->key))
+		lock->key = (void *)lock;
+
+	/*
+	 * NOTE: the class-key must be unique. For dynamic locks, a static
+	 * lock_class_key variable is passed in through the mutex_init()
+	 * (or spin_lock_init()) call - which acts as the key. For static
+	 * locks we use the lock object itself as the key.
+	 */
+	BUILD_BUG_ON(sizeof(struct lock_class_key) >
+			sizeof(struct lockdep_map));
+
+	key = lock->key->subkeys + subclass;
+
+	hash_head = classhashentry(key);
+
+	/*
+	 * We can walk the hash lockfree, because the hash only
+	 * grows, and we are careful when adding entries to the end:
+	 */
+	list_for_each_entry(class, hash_head, hash_entry) {
+		if (class->key == key) {
+			/*
+			 * Huh! same key, different name? Did someone trample
+			 * on some memory? We're most confused.
+			 */
+			WARN_ON_ONCE(class->name != lock->name);
+			return class;
+		}
+	}
+
+	return NULL;
+}
+
+/*
+ * Register a lock's class in the hash-table, if the class is not present
+ * yet. Otherwise we look it up. We cache the result in the lock object
+ * itself, so actual lookup of the hash should be once per lock object.
+ */
+static inline struct lock_class *
+register_lock_class(struct lockdep_map *lock, unsigned int subclass, int force)
+{
+	struct lockdep_subclass_key *key;
+	struct list_head *hash_head;
+	struct lock_class *class;
+	unsigned long flags;
+
+	class = look_up_lock_class(lock, subclass);
+	if (likely(class))
+		goto out_set_class_cache;
+
+	/*
+	 * Debug-check: all keys must be persistent!
+ 	 */
+	if (!static_obj(lock->key)) {
+		debug_locks_off();
+		printk("INFO: trying to register non-static key.\n");
+		printk("the code is fine but needs lockdep annotation.\n");
+		printk("turning off the locking correctness validator.\n");
+		dump_stack();
+
+		return NULL;
+	}
+
+	key = lock->key->subkeys + subclass;
+	hash_head = classhashentry(key);
+
+	raw_local_irq_save(flags);
+	if (!graph_lock()) {
+		raw_local_irq_restore(flags);
+		return NULL;
+	}
+	/*
+	 * We have to do the hash-walk again, to avoid races
+	 * with another CPU:
+	 */
+	list_for_each_entry(class, hash_head, hash_entry)
+		if (class->key == key)
+			goto out_unlock_set;
+	/*
+	 * Allocate a new key from the static array, and add it to
+	 * the hash:
+	 */
+	if (nr_lock_classes >= MAX_LOCKDEP_KEYS) {
+		if (!debug_locks_off_graph_unlock()) {
+			raw_local_irq_restore(flags);
+			return NULL;
+		}
+		raw_local_irq_restore(flags);
+
+		print_lockdep_off("BUG: MAX_LOCKDEP_KEYS too low!");
+		dump_stack();
+		return NULL;
+	}
+	class = lock_classes + nr_lock_classes++;
+	debug_atomic_inc(nr_unused_locks);
+	class->key = key;
+	class->name = lock->name;
+	class->subclass = subclass;
+	INIT_LIST_HEAD(&class->lock_entry);
+	INIT_LIST_HEAD(&class->locks_before);
+	INIT_LIST_HEAD(&class->locks_after);
+	class->name_version = count_matching_names(class);
+	/*
+	 * We use RCU's safe list-add method to make
+	 * parallel walking of the hash-list safe:
+	 */
+	list_add_tail_rcu(&class->hash_entry, hash_head);
+	/*
+	 * Add it to the global list of classes:
+	 */
+	list_add_tail_rcu(&class->lock_entry, &all_lock_classes);
+
+	if (verbose(class)) {
+		graph_unlock();
+		raw_local_irq_restore(flags);
+
+		printk("\nnew class %p: %s", class->key, class->name);
+		if (class->name_version > 1)
+			printk("#%d", class->name_version);
+		printk("\n");
+		dump_stack();
+
+		raw_local_irq_save(flags);
+		if (!graph_lock()) {
+			raw_local_irq_restore(flags);
+			return NULL;
+		}
+	}
+out_unlock_set:
+	graph_unlock();
+	raw_local_irq_restore(flags);
+
+out_set_class_cache:
+	if (!subclass || force)
+		lock->class_cache[0] = class;
+	else if (subclass < NR_LOCKDEP_CACHING_CLASSES)
+		lock->class_cache[subclass] = class;
+
+	/*
+	 * Hash collision, did we smoke some? We found a class with a matching
+	 * hash but the subclass -- which is hashed in -- didn't match.
+	 */
+	if (DEBUG_LOCKS_WARN_ON(class->subclass != subclass))
+		return NULL;
+
+	return class;
+}
+
+#ifdef CONFIG_PROVE_LOCKING
+/*
+ * Allocate a lockdep entry. (assumes the graph_lock held, returns
+ * with NULL on failure)
+ */
+static struct lock_list *alloc_list_entry(void)
+{
+	if (nr_list_entries >= MAX_LOCKDEP_ENTRIES) {
+		if (!debug_locks_off_graph_unlock())
+			return NULL;
+
+		print_lockdep_off("BUG: MAX_LOCKDEP_ENTRIES too low!");
+		dump_stack();
+		return NULL;
+	}
+	return list_entries + nr_list_entries++;
+}
+
+/*
+ * Add a new dependency to the head of the list:
+ */
+static int add_lock_to_list(struct lock_class *class, struct lock_class *this,
+			    struct list_head *head, unsigned long ip,
+			    int distance, struct stack_trace *trace)
+{
+	struct lock_list *entry;
+	/*
+	 * Lock not present yet - get a new dependency struct and
+	 * add it to the list:
+	 */
+	entry = alloc_list_entry();
+	if (!entry)
+		return 0;
+
+	entry->class = this;
+	entry->distance = distance;
+	entry->trace = *trace;
+	/*
+	 * Since we never remove from the dependency list, the list can
+	 * be walked lockless by other CPUs, it's only allocation
+	 * that must be protected by the spinlock. But this also means
+	 * we must make new entries visible only once writes to the
+	 * entry become visible - hence the RCU op:
+	 */
+	list_add_tail_rcu(&entry->entry, head);
+
+	return 1;
+}
+
+/*
+ * For good efficiency of modular, we use power of 2
+ */
+#define MAX_CIRCULAR_QUEUE_SIZE		4096UL
+#define CQ_MASK				(MAX_CIRCULAR_QUEUE_SIZE-1)
+
+/*
+ * The circular_queue and helpers is used to implement the
+ * breadth-first search(BFS)algorithem, by which we can build
+ * the shortest path from the next lock to be acquired to the
+ * previous held lock if there is a circular between them.
+ */
+struct circular_queue {
+	unsigned long element[MAX_CIRCULAR_QUEUE_SIZE];
+	unsigned int  front, rear;
+};
+
+static struct circular_queue lock_cq;
+
+unsigned int max_bfs_queue_depth;
+
+static unsigned int lockdep_dependency_gen_id;
+
+static inline void __cq_init(struct circular_queue *cq)
+{
+	cq->front = cq->rear = 0;
+	lockdep_dependency_gen_id++;
+}
+
+static inline int __cq_empty(struct circular_queue *cq)
+{
+	return (cq->front == cq->rear);
+}
+
+static inline int __cq_full(struct circular_queue *cq)
+{
+	return ((cq->rear + 1) & CQ_MASK) == cq->front;
+}
+
+static inline int __cq_enqueue(struct circular_queue *cq, unsigned long elem)
+{
+	if (__cq_full(cq))
+		return -1;
+
+	cq->element[cq->rear] = elem;
+	cq->rear = (cq->rear + 1) & CQ_MASK;
+	return 0;
+}
+
+static inline int __cq_dequeue(struct circular_queue *cq, unsigned long *elem)
+{
+	if (__cq_empty(cq))
+		return -1;
+
+	*elem = cq->element[cq->front];
+	cq->front = (cq->front + 1) & CQ_MASK;
+	return 0;
+}
+
+static inline unsigned int  __cq_get_elem_count(struct circular_queue *cq)
+{
+	return (cq->rear - cq->front) & CQ_MASK;
+}
+
+static inline void mark_lock_accessed(struct lock_list *lock,
+					struct lock_list *parent)
+{
+	unsigned long nr;
+
+	nr = lock - list_entries;
+	WARN_ON(nr >= nr_list_entries); /* Out-of-bounds, input fail */
+	lock->parent = parent;
+	lock->class->dep_gen_id = lockdep_dependency_gen_id;
+}
+
+static inline unsigned long lock_accessed(struct lock_list *lock)
+{
+	unsigned long nr;
+
+	nr = lock - list_entries;
+	WARN_ON(nr >= nr_list_entries); /* Out-of-bounds, input fail */
+	return lock->class->dep_gen_id == lockdep_dependency_gen_id;
+}
+
+static inline struct lock_list *get_lock_parent(struct lock_list *child)
+{
+	return child->parent;
+}
+
+static inline int get_lock_depth(struct lock_list *child)
+{
+	int depth = 0;
+	struct lock_list *parent;
+
+	while ((parent = get_lock_parent(child))) {
+		child = parent;
+		depth++;
+	}
+	return depth;
+}
+
+static int __bfs(struct lock_list *source_entry,
+		 void *data,
+		 int (*match)(struct lock_list *entry, void *data),
+		 struct lock_list **target_entry,
+		 int forward)
+{
+	struct lock_list *entry;
+	struct list_head *head;
+	struct circular_queue *cq = &lock_cq;
+	int ret = 1;
+
+	if (match(source_entry, data)) {
+		*target_entry = source_entry;
+		ret = 0;
+		goto exit;
+	}
+
+	if (forward)
+		head = &source_entry->class->locks_after;
+	else
+		head = &source_entry->class->locks_before;
+
+	if (list_empty(head))
+		goto exit;
+
+	__cq_init(cq);
+	__cq_enqueue(cq, (unsigned long)source_entry);
+
+	while (!__cq_empty(cq)) {
+		struct lock_list *lock;
+
+		__cq_dequeue(cq, (unsigned long *)&lock);
+
+		if (!lock->class) {
+			ret = -2;
+			goto exit;
+		}
+
+		if (forward)
+			head = &lock->class->locks_after;
+		else
+			head = &lock->class->locks_before;
+
+		list_for_each_entry(entry, head, entry) {
+			if (!lock_accessed(entry)) {
+				unsigned int cq_depth;
+				mark_lock_accessed(entry, lock);
+				if (match(entry, data)) {
+					*target_entry = entry;
+					ret = 0;
+					goto exit;
+				}
+
+				if (__cq_enqueue(cq, (unsigned long)entry)) {
+					ret = -1;
+					goto exit;
+				}
+				cq_depth = __cq_get_elem_count(cq);
+				if (max_bfs_queue_depth < cq_depth)
+					max_bfs_queue_depth = cq_depth;
+			}
+		}
+	}
+exit:
+	return ret;
+}
+
+static inline int __bfs_forwards(struct lock_list *src_entry,
+			void *data,
+			int (*match)(struct lock_list *entry, void *data),
+			struct lock_list **target_entry)
+{
+	return __bfs(src_entry, data, match, target_entry, 1);
+
+}
+
+static inline int __bfs_backwards(struct lock_list *src_entry,
+			void *data,
+			int (*match)(struct lock_list *entry, void *data),
+			struct lock_list **target_entry)
+{
+	return __bfs(src_entry, data, match, target_entry, 0);
+
+}
+
+/*
+ * Recursive, forwards-direction lock-dependency checking, used for
+ * both noncyclic checking and for hardirq-unsafe/softirq-unsafe
+ * checking.
+ */
+
+/*
+ * Print a dependency chain entry (this is only done when a deadlock
+ * has been detected):
+ */
+static noinline int
+print_circular_bug_entry(struct lock_list *target, int depth)
+{
+	if (debug_locks_silent)
+		return 0;
+	printk("\n-> #%u", depth);
+	print_lock_name(target->class);
+	printk(":\n");
+	print_stack_trace(&target->trace, 6);
+
+	return 0;
+}
+
+static void
+print_circular_lock_scenario(struct held_lock *src,
+			     struct held_lock *tgt,
+			     struct lock_list *prt)
+{
+	struct lock_class *source = hlock_class(src);
+	struct lock_class *target = hlock_class(tgt);
+	struct lock_class *parent = prt->class;
+
+	/*
+	 * A direct locking problem where unsafe_class lock is taken
+	 * directly by safe_class lock, then all we need to show
+	 * is the deadlock scenario, as it is obvious that the
+	 * unsafe lock is taken under the safe lock.
+	 *
+	 * But if there is a chain instead, where the safe lock takes
+	 * an intermediate lock (middle_class) where this lock is
+	 * not the same as the safe lock, then the lock chain is
+	 * used to describe the problem. Otherwise we would need
+	 * to show a different CPU case for each link in the chain
+	 * from the safe_class lock to the unsafe_class lock.
+	 */
+	if (parent != source) {
+		printk("Chain exists of:\n  ");
+		__print_lock_name(source);
+		printk(" --> ");
+		__print_lock_name(parent);
+		printk(" --> ");
+		__print_lock_name(target);
+		printk("\n\n");
+	}
+
+	printk(" Possible unsafe locking scenario:\n\n");
+	printk("       CPU0                    CPU1\n");
+	printk("       ----                    ----\n");
+	printk("  lock(");
+	__print_lock_name(target);
+	printk(");\n");
+	printk("                               lock(");
+	__print_lock_name(parent);
+	printk(");\n");
+	printk("                               lock(");
+	__print_lock_name(target);
+	printk(");\n");
+	printk("  lock(");
+	__print_lock_name(source);
+	printk(");\n");
+	printk("\n *** DEADLOCK ***\n\n");
+}
+
+/*
+ * When a circular dependency is detected, print the
+ * header first:
+ */
+static noinline int
+print_circular_bug_header(struct lock_list *entry, unsigned int depth,
+			struct held_lock *check_src,
+			struct held_lock *check_tgt)
+{
+	struct task_struct *curr = current;
+
+	if (debug_locks_silent)
+		return 0;
+
+	printk("\n");
+	printk("======================================================\n");
+	printk("[ INFO: possible circular locking dependency detected ]\n");
+	print_kernel_ident();
+	printk("-------------------------------------------------------\n");
+	printk("%s/%d is trying to acquire lock:\n",
+		curr->comm, task_pid_nr(curr));
+	print_lock(check_src);
+	printk("\nbut task is already holding lock:\n");
+	print_lock(check_tgt);
+	printk("\nwhich lock already depends on the new lock.\n\n");
+	printk("\nthe existing dependency chain (in reverse order) is:\n");
+
+	print_circular_bug_entry(entry, depth);
+
+	return 0;
+}
+
+static inline int class_equal(struct lock_list *entry, void *data)
+{
+	return entry->class == data;
+}
+
+static noinline int print_circular_bug(struct lock_list *this,
+				struct lock_list *target,
+				struct held_lock *check_src,
+				struct held_lock *check_tgt)
+{
+	struct task_struct *curr = current;
+	struct lock_list *parent;
+	struct lock_list *first_parent;
+	int depth;
+
+	if (!debug_locks_off_graph_unlock() || debug_locks_silent)
+		return 0;
+
+	if (!save_trace(&this->trace))
+		return 0;
+
+	depth = get_lock_depth(target);
+
+	print_circular_bug_header(target, depth, check_src, check_tgt);
+
+	parent = get_lock_parent(target);
+	first_parent = parent;
+
+	while (parent) {
+		print_circular_bug_entry(parent, --depth);
+		parent = get_lock_parent(parent);
+	}
+
+	printk("\nother info that might help us debug this:\n\n");
+	print_circular_lock_scenario(check_src, check_tgt,
+				     first_parent);
+
+	lockdep_print_held_locks(curr);
+
+	printk("\nstack backtrace:\n");
+	dump_stack();
+
+	return 0;
+}
+
+static noinline int print_bfs_bug(int ret)
+{
+	if (!debug_locks_off_graph_unlock())
+		return 0;
+
+	/*
+	 * Breadth-first-search failed, graph got corrupted?
+	 */
+	WARN(1, "lockdep bfs error:%d\n", ret);
+
+	return 0;
+}
+
+static int noop_count(struct lock_list *entry, void *data)
+{
+	(*(unsigned long *)data)++;
+	return 0;
+}
+
+unsigned long __lockdep_count_forward_deps(struct lock_list *this)
+{
+	unsigned long  count = 0;
+	struct lock_list *uninitialized_var(target_entry);
+
+	__bfs_forwards(this, (void *)&count, noop_count, &target_entry);
+
+	return count;
+}
+unsigned long lockdep_count_forward_deps(struct lock_class *class)
+{
+	unsigned long ret, flags;
+	struct lock_list this;
+
+	this.parent = NULL;
+	this.class = class;
+
+	local_irq_save(flags);
+	arch_spin_lock(&lockdep_lock);
+	ret = __lockdep_count_forward_deps(&this);
+	arch_spin_unlock(&lockdep_lock);
+	local_irq_restore(flags);
+
+	return ret;
+}
+
+unsigned long __lockdep_count_backward_deps(struct lock_list *this)
+{
+	unsigned long  count = 0;
+	struct lock_list *uninitialized_var(target_entry);
+
+	__bfs_backwards(this, (void *)&count, noop_count, &target_entry);
+
+	return count;
+}
+
+unsigned long lockdep_count_backward_deps(struct lock_class *class)
+{
+	unsigned long ret, flags;
+	struct lock_list this;
+
+	this.parent = NULL;
+	this.class = class;
+
+	local_irq_save(flags);
+	arch_spin_lock(&lockdep_lock);
+	ret = __lockdep_count_backward_deps(&this);
+	arch_spin_unlock(&lockdep_lock);
+	local_irq_restore(flags);
+
+	return ret;
+}
+
+/*
+ * Prove that the dependency graph starting at <entry> can not
+ * lead to <target>. Print an error and return 0 if it does.
+ */
+static noinline int
+check_noncircular(struct lock_list *root, struct lock_class *target,
+		struct lock_list **target_entry)
+{
+	int result;
+
+	debug_atomic_inc(nr_cyclic_checks);
+
+	result = __bfs_forwards(root, target, class_equal, target_entry);
+
+	return result;
+}
+
+#if defined(CONFIG_TRACE_IRQFLAGS) && defined(CONFIG_PROVE_LOCKING)
+/*
+ * Forwards and backwards subgraph searching, for the purposes of
+ * proving that two subgraphs can be connected by a new dependency
+ * without creating any illegal irq-safe -> irq-unsafe lock dependency.
+ */
+
+static inline int usage_match(struct lock_list *entry, void *bit)
+{
+	return entry->class->usage_mask & (1 << (enum lock_usage_bit)bit);
+}
+
+
+
+/*
+ * Find a node in the forwards-direction dependency sub-graph starting
+ * at @root->class that matches @bit.
+ *
+ * Return 0 if such a node exists in the subgraph, and put that node
+ * into *@target_entry.
+ *
+ * Return 1 otherwise and keep *@target_entry unchanged.
+ * Return <0 on error.
+ */
+static int
+find_usage_forwards(struct lock_list *root, enum lock_usage_bit bit,
+			struct lock_list **target_entry)
+{
+	int result;
+
+	debug_atomic_inc(nr_find_usage_forwards_checks);
+
+	result = __bfs_forwards(root, (void *)bit, usage_match, target_entry);
+
+	return result;
+}
+
+/*
+ * Find a node in the backwards-direction dependency sub-graph starting
+ * at @root->class that matches @bit.
+ *
+ * Return 0 if such a node exists in the subgraph, and put that node
+ * into *@target_entry.
+ *
+ * Return 1 otherwise and keep *@target_entry unchanged.
+ * Return <0 on error.
+ */
+static int
+find_usage_backwards(struct lock_list *root, enum lock_usage_bit bit,
+			struct lock_list **target_entry)
+{
+	int result;
+
+	debug_atomic_inc(nr_find_usage_backwards_checks);
+
+	result = __bfs_backwards(root, (void *)bit, usage_match, target_entry);
+
+	return result;
+}
+
+static void print_lock_class_header(struct lock_class *class, int depth)
+{
+	int bit;
+
+	printk("%*s->", depth, "");
+	print_lock_name(class);
+	printk(" ops: %lu", class->ops);
+	printk(" {\n");
+
+	for (bit = 0; bit < LOCK_USAGE_STATES; bit++) {
+		if (class->usage_mask & (1 << bit)) {
+			int len = depth;
+
+			len += printk("%*s   %s", depth, "", usage_str[bit]);
+			len += printk(" at:\n");
+			print_stack_trace(class->usage_traces + bit, len);
+		}
+	}
+	printk("%*s }\n", depth, "");
+
+	printk("%*s ... key      at: ",depth,"");
+	print_ip_sym((unsigned long)class->key);
+}
+
+/*
+ * printk the shortest lock dependencies from @start to @end in reverse order:
+ */
+static void __used
+print_shortest_lock_dependencies(struct lock_list *leaf,
+				struct lock_list *root)
+{
+	struct lock_list *entry = leaf;
+	int depth;
+
+	/*compute depth from generated tree by BFS*/
+	depth = get_lock_depth(leaf);
+
+	do {
+		print_lock_class_header(entry->class, depth);
+		printk("%*s ... acquired at:\n", depth, "");
+		print_stack_trace(&entry->trace, 2);
+		printk("\n");
+
+		if (depth == 0 && (entry != root)) {
+			printk("lockdep:%s bad path found in chain graph\n", __func__);
+			break;
+		}
+
+		entry = get_lock_parent(entry);
+		depth--;
+	} while (entry && (depth >= 0));
+
+	return;
+}
+
+static void
+print_irq_lock_scenario(struct lock_list *safe_entry,
+			struct lock_list *unsafe_entry,
+			struct lock_class *prev_class,
+			struct lock_class *next_class)
+{
+	struct lock_class *safe_class = safe_entry->class;
+	struct lock_class *unsafe_class = unsafe_entry->class;
+	struct lock_class *middle_class = prev_class;
+
+	if (middle_class == safe_class)
+		middle_class = next_class;
+
+	/*
+	 * A direct locking problem where unsafe_class lock is taken
+	 * directly by safe_class lock, then all we need to show
+	 * is the deadlock scenario, as it is obvious that the
+	 * unsafe lock is taken under the safe lock.
+	 *
+	 * But if there is a chain instead, where the safe lock takes
+	 * an intermediate lock (middle_class) where this lock is
+	 * not the same as the safe lock, then the lock chain is
+	 * used to describe the problem. Otherwise we would need
+	 * to show a different CPU case for each link in the chain
+	 * from the safe_class lock to the unsafe_class lock.
+	 */
+	if (middle_class != unsafe_class) {
+		printk("Chain exists of:\n  ");
+		__print_lock_name(safe_class);
+		printk(" --> ");
+		__print_lock_name(middle_class);
+		printk(" --> ");
+		__print_lock_name(unsafe_class);
+		printk("\n\n");
+	}
+
+	printk(" Possible interrupt unsafe locking scenario:\n\n");
+	printk("       CPU0                    CPU1\n");
+	printk("       ----                    ----\n");
+	printk("  lock(");
+	__print_lock_name(unsafe_class);
+	printk(");\n");
+	printk("                               local_irq_disable();\n");
+	printk("                               lock(");
+	__print_lock_name(safe_class);
+	printk(");\n");
+	printk("                               lock(");
+	__print_lock_name(middle_class);
+	printk(");\n");
+	printk("  <Interrupt>\n");
+	printk("    lock(");
+	__print_lock_name(safe_class);
+	printk(");\n");
+	printk("\n *** DEADLOCK ***\n\n");
+}
+
+static int
+print_bad_irq_dependency(struct task_struct *curr,
+			 struct lock_list *prev_root,
+			 struct lock_list *next_root,
+			 struct lock_list *backwards_entry,
+			 struct lock_list *forwards_entry,
+			 struct held_lock *prev,
+			 struct held_lock *next,
+			 enum lock_usage_bit bit1,
+			 enum lock_usage_bit bit2,
+			 const char *irqclass)
+{
+	if (!debug_locks_off_graph_unlock() || debug_locks_silent)
+		return 0;
+
+	printk("\n");
+	printk("======================================================\n");
+	printk("[ INFO: %s-safe -> %s-unsafe lock order detected ]\n",
+		irqclass, irqclass);
+	print_kernel_ident();
+	printk("------------------------------------------------------\n");
+	printk("%s/%d [HC%u[%lu]:SC%u[%lu]:HE%u:SE%u] is trying to acquire:\n",
+		curr->comm, task_pid_nr(curr),
+		curr->hardirq_context, hardirq_count() >> HARDIRQ_SHIFT,
+		curr->softirq_context, softirq_count() >> SOFTIRQ_SHIFT,
+		curr->hardirqs_enabled,
+		curr->softirqs_enabled);
+	print_lock(next);
+
+	printk("\nand this task is already holding:\n");
+	print_lock(prev);
+	printk("which would create a new lock dependency:\n");
+	print_lock_name(hlock_class(prev));
+	printk(" ->");
+	print_lock_name(hlock_class(next));
+	printk("\n");
+
+	printk("\nbut this new dependency connects a %s-irq-safe lock:\n",
+		irqclass);
+	print_lock_name(backwards_entry->class);
+	printk("\n... which became %s-irq-safe at:\n", irqclass);
+
+	print_stack_trace(backwards_entry->class->usage_traces + bit1, 1);
+
+	printk("\nto a %s-irq-unsafe lock:\n", irqclass);
+	print_lock_name(forwards_entry->class);
+	printk("\n... which became %s-irq-unsafe at:\n", irqclass);
+	printk("...");
+
+	print_stack_trace(forwards_entry->class->usage_traces + bit2, 1);
+
+	printk("\nother info that might help us debug this:\n\n");
+	print_irq_lock_scenario(backwards_entry, forwards_entry,
+				hlock_class(prev), hlock_class(next));
+
+	lockdep_print_held_locks(curr);
+
+	printk("\nthe dependencies between %s-irq-safe lock", irqclass);
+	printk(" and the holding lock:\n");
+	if (!save_trace(&prev_root->trace))
+		return 0;
+	print_shortest_lock_dependencies(backwards_entry, prev_root);
+
+	printk("\nthe dependencies between the lock to be acquired");
+	printk(" and %s-irq-unsafe lock:\n", irqclass);
+	if (!save_trace(&next_root->trace))
+		return 0;
+	print_shortest_lock_dependencies(forwards_entry, next_root);
+
+	printk("\nstack backtrace:\n");
+	dump_stack();
+
+	return 0;
+}
+
+static int
+check_usage(struct task_struct *curr, struct held_lock *prev,
+	    struct held_lock *next, enum lock_usage_bit bit_backwards,
+	    enum lock_usage_bit bit_forwards, const char *irqclass)
+{
+	int ret;
+	struct lock_list this, that;
+	struct lock_list *uninitialized_var(target_entry);
+	struct lock_list *uninitialized_var(target_entry1);
+
+	this.parent = NULL;
+
+	this.class = hlock_class(prev);
+	ret = find_usage_backwards(&this, bit_backwards, &target_entry);
+	if (ret < 0)
+		return print_bfs_bug(ret);
+	if (ret == 1)
+		return ret;
+
+	that.parent = NULL;
+	that.class = hlock_class(next);
+	ret = find_usage_forwards(&that, bit_forwards, &target_entry1);
+	if (ret < 0)
+		return print_bfs_bug(ret);
+	if (ret == 1)
+		return ret;
+
+	return print_bad_irq_dependency(curr, &this, &that,
+			target_entry, target_entry1,
+			prev, next,
+			bit_backwards, bit_forwards, irqclass);
+}
+
+static const char *state_names[] = {
+#define LOCKDEP_STATE(__STATE) \
+	__stringify(__STATE),
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
+};
+
+static const char *state_rnames[] = {
+#define LOCKDEP_STATE(__STATE) \
+	__stringify(__STATE)"-READ",
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
+};
+
+static inline const char *state_name(enum lock_usage_bit bit)
+{
+	return (bit & 1) ? state_rnames[bit >> 2] : state_names[bit >> 2];
+}
+
+static int exclusive_bit(int new_bit)
+{
+	/*
+	 * USED_IN
+	 * USED_IN_READ
+	 * ENABLED
+	 * ENABLED_READ
+	 *
+	 * bit 0 - write/read
+	 * bit 1 - used_in/enabled
+	 * bit 2+  state
+	 */
+
+	int state = new_bit & ~3;
+	int dir = new_bit & 2;
+
+	/*
+	 * keep state, bit flip the direction and strip read.
+	 */
+	return state | (dir ^ 2);
+}
+
+static int check_irq_usage(struct task_struct *curr, struct held_lock *prev,
+			   struct held_lock *next, enum lock_usage_bit bit)
+{
+	/*
+	 * Prove that the new dependency does not connect a hardirq-safe
+	 * lock with a hardirq-unsafe lock - to achieve this we search
+	 * the backwards-subgraph starting at <prev>, and the
+	 * forwards-subgraph starting at <next>:
+	 */
+	if (!check_usage(curr, prev, next, bit,
+			   exclusive_bit(bit), state_name(bit)))
+		return 0;
+
+	bit++; /* _READ */
+
+	/*
+	 * Prove that the new dependency does not connect a hardirq-safe-read
+	 * lock with a hardirq-unsafe lock - to achieve this we search
+	 * the backwards-subgraph starting at <prev>, and the
+	 * forwards-subgraph starting at <next>:
+	 */
+	if (!check_usage(curr, prev, next, bit,
+			   exclusive_bit(bit), state_name(bit)))
+		return 0;
+
+	return 1;
+}
+
+static int
+check_prev_add_irq(struct task_struct *curr, struct held_lock *prev,
+		struct held_lock *next)
+{
+#define LOCKDEP_STATE(__STATE)						\
+	if (!check_irq_usage(curr, prev, next, LOCK_USED_IN_##__STATE))	\
+		return 0;
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
+
+	return 1;
+}
+
+static void inc_chains(void)
+{
+	if (current->hardirq_context)
+		nr_hardirq_chains++;
+	else {
+		if (current->softirq_context)
+			nr_softirq_chains++;
+		else
+			nr_process_chains++;
+	}
+}
+
+#else
+
+static inline int
+check_prev_add_irq(struct task_struct *curr, struct held_lock *prev,
+		struct held_lock *next)
+{
+	return 1;
+}
+
+static inline void inc_chains(void)
+{
+	nr_process_chains++;
+}
+
+#endif
+
+static void
+print_deadlock_scenario(struct held_lock *nxt,
+			     struct held_lock *prv)
+{
+	struct lock_class *next = hlock_class(nxt);
+	struct lock_class *prev = hlock_class(prv);
+
+	printk(" Possible unsafe locking scenario:\n\n");
+	printk("       CPU0\n");
+	printk("       ----\n");
+	printk("  lock(");
+	__print_lock_name(prev);
+	printk(");\n");
+	printk("  lock(");
+	__print_lock_name(next);
+	printk(");\n");
+	printk("\n *** DEADLOCK ***\n\n");
+	printk(" May be due to missing lock nesting notation\n\n");
+}
+
+static int
+print_deadlock_bug(struct task_struct *curr, struct held_lock *prev,
+		   struct held_lock *next)
+{
+	if (!debug_locks_off_graph_unlock() || debug_locks_silent)
+		return 0;
+
+	printk("\n");
+	printk("=============================================\n");
+	printk("[ INFO: possible recursive locking detected ]\n");
+	print_kernel_ident();
+	printk("---------------------------------------------\n");
+	printk("%s/%d is trying to acquire lock:\n",
+		curr->comm, task_pid_nr(curr));
+	print_lock(next);
+	printk("\nbut task is already holding lock:\n");
+	print_lock(prev);
+
+	printk("\nother info that might help us debug this:\n");
+	print_deadlock_scenario(next, prev);
+	lockdep_print_held_locks(curr);
+
+	printk("\nstack backtrace:\n");
+	dump_stack();
+
+	return 0;
+}
+
+/*
+ * Check whether we are holding such a class already.
+ *
+ * (Note that this has to be done separately, because the graph cannot
+ * detect such classes of deadlocks.)
+ *
+ * Returns: 0 on deadlock detected, 1 on OK, 2 on recursive read
+ */
+static int
+check_deadlock(struct task_struct *curr, struct held_lock *next,
+	       struct lockdep_map *next_instance, int read)
+{
+	struct held_lock *prev;
+	struct held_lock *nest = NULL;
+	int i;
+
+	for (i = 0; i < curr->lockdep_depth; i++) {
+		prev = curr->held_locks + i;
+
+		if (prev->instance == next->nest_lock)
+			nest = prev;
+
+		if (hlock_class(prev) != hlock_class(next))
+			continue;
+
+		/*
+		 * Allow read-after-read recursion of the same
+		 * lock class (i.e. read_lock(lock)+read_lock(lock)):
+		 */
+		if ((read == 2) && prev->read)
+			return 2;
+
+		/*
+		 * We're holding the nest_lock, which serializes this lock's
+		 * nesting behaviour.
+		 */
+		if (nest)
+			return 2;
+
+		return print_deadlock_bug(curr, prev, next);
+	}
+	return 1;
+}
+
+/*
+ * There was a chain-cache miss, and we are about to add a new dependency
+ * to a previous lock. We recursively validate the following rules:
+ *
+ *  - would the adding of the <prev> -> <next> dependency create a
+ *    circular dependency in the graph? [== circular deadlock]
+ *
+ *  - does the new prev->next dependency connect any hardirq-safe lock
+ *    (in the full backwards-subgraph starting at <prev>) with any
+ *    hardirq-unsafe lock (in the full forwards-subgraph starting at
+ *    <next>)? [== illegal lock inversion with hardirq contexts]
+ *
+ *  - does the new prev->next dependency connect any softirq-safe lock
+ *    (in the full backwards-subgraph starting at <prev>) with any
+ *    softirq-unsafe lock (in the full forwards-subgraph starting at
+ *    <next>)? [== illegal lock inversion with softirq contexts]
+ *
+ * any of these scenarios could lead to a deadlock.
+ *
+ * Then if all the validations pass, we add the forwards and backwards
+ * dependency.
+ */
+static int
+check_prev_add(struct task_struct *curr, struct held_lock *prev,
+	       struct held_lock *next, int distance, int trylock_loop)
+{
+	struct lock_list *entry;
+	int ret;
+	struct lock_list this;
+	struct lock_list *uninitialized_var(target_entry);
+	/*
+	 * Static variable, serialized by the graph_lock().
+	 *
+	 * We use this static variable to save the stack trace in case
+	 * we call into this function multiple times due to encountering
+	 * trylocks in the held lock stack.
+	 */
+	static struct stack_trace trace;
+
+	/*
+	 * Prove that the new <prev> -> <next> dependency would not
+	 * create a circular dependency in the graph. (We do this by
+	 * forward-recursing into the graph starting at <next>, and
+	 * checking whether we can reach <prev>.)
+	 *
+	 * We are using global variables to control the recursion, to
+	 * keep the stackframe size of the recursive functions low:
+	 */
+	this.class = hlock_class(next);
+	this.parent = NULL;
+	ret = check_noncircular(&this, hlock_class(prev), &target_entry);
+	if (unlikely(!ret))
+		return print_circular_bug(&this, target_entry, next, prev);
+	else if (unlikely(ret < 0))
+		return print_bfs_bug(ret);
+
+	if (!check_prev_add_irq(curr, prev, next))
+		return 0;
+
+	/*
+	 * For recursive read-locks we do all the dependency checks,
+	 * but we dont store read-triggered dependencies (only
+	 * write-triggered dependencies). This ensures that only the
+	 * write-side dependencies matter, and that if for example a
+	 * write-lock never takes any other locks, then the reads are
+	 * equivalent to a NOP.
+	 */
+	if (next->read == 2 || prev->read == 2)
+		return 1;
+	/*
+	 * Is the <prev> -> <next> dependency already present?
+	 *
+	 * (this may occur even though this is a new chain: consider
+	 *  e.g. the L1 -> L2 -> L3 -> L4 and the L5 -> L1 -> L2 -> L3
+	 *  chains - the second one will be new, but L1 already has
+	 *  L2 added to its dependency list, due to the first chain.)
+	 */
+	list_for_each_entry(entry, &hlock_class(prev)->locks_after, entry) {
+		if (entry->class == hlock_class(next)) {
+			if (distance == 1)
+				entry->distance = 1;
+			return 2;
+		}
+	}
+
+	if (!trylock_loop && !save_trace(&trace))
+		return 0;
+
+	/*
+	 * Ok, all validations passed, add the new lock
+	 * to the previous lock's dependency list:
+	 */
+	ret = add_lock_to_list(hlock_class(prev), hlock_class(next),
+			       &hlock_class(prev)->locks_after,
+			       next->acquire_ip, distance, &trace);
+
+	if (!ret)
+		return 0;
+
+	ret = add_lock_to_list(hlock_class(next), hlock_class(prev),
+			       &hlock_class(next)->locks_before,
+			       next->acquire_ip, distance, &trace);
+	if (!ret)
+		return 0;
+
+	/*
+	 * Debugging printouts:
+	 */
+	if (verbose(hlock_class(prev)) || verbose(hlock_class(next))) {
+		graph_unlock();
+		printk("\n new dependency: ");
+		print_lock_name(hlock_class(prev));
+		printk(" => ");
+		print_lock_name(hlock_class(next));
+		printk("\n");
+		dump_stack();
+		return graph_lock();
+	}
+	return 1;
+}
+
+/*
+ * Add the dependency to all directly-previous locks that are 'relevant'.
+ * The ones that are relevant are (in increasing distance from curr):
+ * all consecutive trylock entries and the final non-trylock entry - or
+ * the end of this context's lock-chain - whichever comes first.
+ */
+static int
+check_prevs_add(struct task_struct *curr, struct held_lock *next)
+{
+	int depth = curr->lockdep_depth;
+	int trylock_loop = 0;
+	struct held_lock *hlock;
+
+	/*
+	 * Debugging checks.
+	 *
+	 * Depth must not be zero for a non-head lock:
+	 */
+	if (!depth)
+		goto out_bug;
+	/*
+	 * At least two relevant locks must exist for this
+	 * to be a head:
+	 */
+	if (curr->held_locks[depth].irq_context !=
+			curr->held_locks[depth-1].irq_context)
+		goto out_bug;
+
+	for (;;) {
+		int distance = curr->lockdep_depth - depth + 1;
+		hlock = curr->held_locks + depth-1;
+		/*
+		 * Only non-recursive-read entries get new dependencies
+		 * added:
+		 */
+		if (hlock->read != 2) {
+			if (!check_prev_add(curr, hlock, next,
+						distance, trylock_loop))
+				return 0;
+			/*
+			 * Stop after the first non-trylock entry,
+			 * as non-trylock entries have added their
+			 * own direct dependencies already, so this
+			 * lock is connected to them indirectly:
+			 */
+			if (!hlock->trylock)
+				break;
+		}
+		depth--;
+		/*
+		 * End of lock-stack?
+		 */
+		if (!depth)
+			break;
+		/*
+		 * Stop the search if we cross into another context:
+		 */
+		if (curr->held_locks[depth].irq_context !=
+				curr->held_locks[depth-1].irq_context)
+			break;
+		trylock_loop = 1;
+	}
+	return 1;
+out_bug:
+	if (!debug_locks_off_graph_unlock())
+		return 0;
+
+	/*
+	 * Clearly we all shouldn't be here, but since we made it we
+	 * can reliable say we messed up our state. See the above two
+	 * gotos for reasons why we could possibly end up here.
+	 */
+	WARN_ON(1);
+
+	return 0;
+}
+
+unsigned long nr_lock_chains;
+struct lock_chain lock_chains[MAX_LOCKDEP_CHAINS];
+int nr_chain_hlocks;
+static u16 chain_hlocks[MAX_LOCKDEP_CHAIN_HLOCKS];
+
+struct lock_class *lock_chain_get_class(struct lock_chain *chain, int i)
+{
+	return lock_classes + chain_hlocks[chain->base + i];
+}
+
+/*
+ * Look up a dependency chain. If the key is not present yet then
+ * add it and return 1 - in this case the new dependency chain is
+ * validated. If the key is already hashed, return 0.
+ * (On return with 1 graph_lock is held.)
+ */
+static inline int lookup_chain_cache(struct task_struct *curr,
+				     struct held_lock *hlock,
+				     u64 chain_key)
+{
+	struct lock_class *class = hlock_class(hlock);
+	struct list_head *hash_head = chainhashentry(chain_key);
+	struct lock_chain *chain;
+	struct held_lock *hlock_curr;
+	int i, j;
+
+	/*
+	 * We might need to take the graph lock, ensure we've got IRQs
+	 * disabled to make this an IRQ-safe lock.. for recursion reasons
+	 * lockdep won't complain about its own locking errors.
+	 */
+	if (DEBUG_LOCKS_WARN_ON(!irqs_disabled()))
+		return 0;
+	/*
+	 * We can walk it lock-free, because entries only get added
+	 * to the hash:
+	 */
+	list_for_each_entry(chain, hash_head, entry) {
+		if (chain->chain_key == chain_key) {
+cache_hit:
+			debug_atomic_inc(chain_lookup_hits);
+			if (very_verbose(class))
+				printk("\nhash chain already cached, key: "
+					"%016Lx tail class: [%p] %s\n",
+					(unsigned long long)chain_key,
+					class->key, class->name);
+			return 0;
+		}
+	}
+	if (very_verbose(class))
+		printk("\nnew hash chain, key: %016Lx tail class: [%p] %s\n",
+			(unsigned long long)chain_key, class->key, class->name);
+	/*
+	 * Allocate a new chain entry from the static array, and add
+	 * it to the hash:
+	 */
+	if (!graph_lock())
+		return 0;
+	/*
+	 * We have to walk the chain again locked - to avoid duplicates:
+	 */
+	list_for_each_entry(chain, hash_head, entry) {
+		if (chain->chain_key == chain_key) {
+			graph_unlock();
+			goto cache_hit;
+		}
+	}
+	if (unlikely(nr_lock_chains >= MAX_LOCKDEP_CHAINS)) {
+		if (!debug_locks_off_graph_unlock())
+			return 0;
+
+		print_lockdep_off("BUG: MAX_LOCKDEP_CHAINS too low!");
+		dump_stack();
+		return 0;
+	}
+	chain = lock_chains + nr_lock_chains++;
+	chain->chain_key = chain_key;
+	chain->irq_context = hlock->irq_context;
+	/* Find the first held_lock of current chain */
+	for (i = curr->lockdep_depth - 1; i >= 0; i--) {
+		hlock_curr = curr->held_locks + i;
+		if (hlock_curr->irq_context != hlock->irq_context)
+			break;
+	}
+	i++;
+	chain->depth = curr->lockdep_depth + 1 - i;
+	if (likely(nr_chain_hlocks + chain->depth <= MAX_LOCKDEP_CHAIN_HLOCKS)) {
+		chain->base = nr_chain_hlocks;
+		nr_chain_hlocks += chain->depth;
+		for (j = 0; j < chain->depth - 1; j++, i++) {
+			int lock_id = curr->held_locks[i].class_idx - 1;
+			chain_hlocks[chain->base + j] = lock_id;
+		}
+		chain_hlocks[chain->base + j] = class - lock_classes;
+	}
+	list_add_tail_rcu(&chain->entry, hash_head);
+	debug_atomic_inc(chain_lookup_misses);
+	inc_chains();
+
+	return 1;
+}
+
+static int validate_chain(struct task_struct *curr, struct lockdep_map *lock,
+		struct held_lock *hlock, int chain_head, u64 chain_key)
+{
+	/*
+	 * Trylock needs to maintain the stack of held locks, but it
+	 * does not add new dependencies, because trylock can be done
+	 * in any order.
+	 *
+	 * We look up the chain_key and do the O(N^2) check and update of
+	 * the dependencies only if this is a new dependency chain.
+	 * (If lookup_chain_cache() returns with 1 it acquires
+	 * graph_lock for us)
+	 */
+	if (!hlock->trylock && (hlock->check == 2) &&
+	    lookup_chain_cache(curr, hlock, chain_key)) {
+		/*
+		 * Check whether last held lock:
+		 *
+		 * - is irq-safe, if this lock is irq-unsafe
+		 * - is softirq-safe, if this lock is hardirq-unsafe
+		 *
+		 * And check whether the new lock's dependency graph
+		 * could lead back to the previous lock.
+		 *
+		 * any of these scenarios could lead to a deadlock. If
+		 * All validations
+		 */
+		int ret = check_deadlock(curr, hlock, lock, hlock->read);
+
+		if (!ret)
+			return 0;
+		/*
+		 * Mark recursive read, as we jump over it when
+		 * building dependencies (just like we jump over
+		 * trylock entries):
+		 */
+		if (ret == 2)
+			hlock->read = 2;
+		/*
+		 * Add dependency only if this lock is not the head
+		 * of the chain, and if it's not a secondary read-lock:
+		 */
+		if (!chain_head && ret != 2)
+			if (!check_prevs_add(curr, hlock))
+				return 0;
+		graph_unlock();
+	} else
+		/* after lookup_chain_cache(): */
+		if (unlikely(!debug_locks))
+			return 0;
+
+	return 1;
+}
+#else
+static inline int validate_chain(struct task_struct *curr,
+	       	struct lockdep_map *lock, struct held_lock *hlock,
+		int chain_head, u64 chain_key)
+{
+	return 1;
+}
+#endif
+
+/*
+ * We are building curr_chain_key incrementally, so double-check
+ * it from scratch, to make sure that it's done correctly:
+ */
+static void check_chain_key(struct task_struct *curr)
+{
+#ifdef CONFIG_DEBUG_LOCKDEP
+	struct held_lock *hlock, *prev_hlock = NULL;
+	unsigned int i, id;
+	u64 chain_key = 0;
+
+	for (i = 0; i < curr->lockdep_depth; i++) {
+		hlock = curr->held_locks + i;
+		if (chain_key != hlock->prev_chain_key) {
+			debug_locks_off();
+			/*
+			 * We got mighty confused, our chain keys don't match
+			 * with what we expect, someone trample on our task state?
+			 */
+			WARN(1, "hm#1, depth: %u [%u], %016Lx != %016Lx\n",
+				curr->lockdep_depth, i,
+				(unsigned long long)chain_key,
+				(unsigned long long)hlock->prev_chain_key);
+			return;
+		}
+		id = hlock->class_idx - 1;
+		/*
+		 * Whoops ran out of static storage again?
+		 */
+		if (DEBUG_LOCKS_WARN_ON(id >= MAX_LOCKDEP_KEYS))
+			return;
+
+		if (prev_hlock && (prev_hlock->irq_context !=
+							hlock->irq_context))
+			chain_key = 0;
+		chain_key = iterate_chain_key(chain_key, id);
+		prev_hlock = hlock;
+	}
+	if (chain_key != curr->curr_chain_key) {
+		debug_locks_off();
+		/*
+		 * More smoking hash instead of calculating it, damn see these
+		 * numbers float.. I bet that a pink elephant stepped on my memory.
+		 */
+		WARN(1, "hm#2, depth: %u [%u], %016Lx != %016Lx\n",
+			curr->lockdep_depth, i,
+			(unsigned long long)chain_key,
+			(unsigned long long)curr->curr_chain_key);
+	}
+#endif
+}
+
+static void
+print_usage_bug_scenario(struct held_lock *lock)
+{
+	struct lock_class *class = hlock_class(lock);
+
+	printk(" Possible unsafe locking scenario:\n\n");
+	printk("       CPU0\n");
+	printk("       ----\n");
+	printk("  lock(");
+	__print_lock_name(class);
+	printk(");\n");
+	printk("  <Interrupt>\n");
+	printk("    lock(");
+	__print_lock_name(class);
+	printk(");\n");
+	printk("\n *** DEADLOCK ***\n\n");
+}
+
+static int
+print_usage_bug(struct task_struct *curr, struct held_lock *this,
+		enum lock_usage_bit prev_bit, enum lock_usage_bit new_bit)
+{
+	if (!debug_locks_off_graph_unlock() || debug_locks_silent)
+		return 0;
+
+	printk("\n");
+	printk("=================================\n");
+	printk("[ INFO: inconsistent lock state ]\n");
+	print_kernel_ident();
+	printk("---------------------------------\n");
+
+	printk("inconsistent {%s} -> {%s} usage.\n",
+		usage_str[prev_bit], usage_str[new_bit]);
+
+	printk("%s/%d [HC%u[%lu]:SC%u[%lu]:HE%u:SE%u] takes:\n",
+		curr->comm, task_pid_nr(curr),
+		trace_hardirq_context(curr), hardirq_count() >> HARDIRQ_SHIFT,
+		trace_softirq_context(curr), softirq_count() >> SOFTIRQ_SHIFT,
+		trace_hardirqs_enabled(curr),
+		trace_softirqs_enabled(curr));
+	print_lock(this);
+
+	printk("{%s} state was registered at:\n", usage_str[prev_bit]);
+	print_stack_trace(hlock_class(this)->usage_traces + prev_bit, 1);
+
+	print_irqtrace_events(curr);
+	printk("\nother info that might help us debug this:\n");
+	print_usage_bug_scenario(this);
+
+	lockdep_print_held_locks(curr);
+
+	printk("\nstack backtrace:\n");
+	dump_stack();
+
+	return 0;
+}
+
+/*
+ * Print out an error if an invalid bit is set:
+ */
+static inline int
+valid_state(struct task_struct *curr, struct held_lock *this,
+	    enum lock_usage_bit new_bit, enum lock_usage_bit bad_bit)
+{
+	if (unlikely(hlock_class(this)->usage_mask & (1 << bad_bit)))
+		return print_usage_bug(curr, this, bad_bit, new_bit);
+	return 1;
+}
+
+static int mark_lock(struct task_struct *curr, struct held_lock *this,
+		     enum lock_usage_bit new_bit);
+
+#if defined(CONFIG_TRACE_IRQFLAGS) && defined(CONFIG_PROVE_LOCKING)
+
+/*
+ * print irq inversion bug:
+ */
+static int
+print_irq_inversion_bug(struct task_struct *curr,
+			struct lock_list *root, struct lock_list *other,
+			struct held_lock *this, int forwards,
+			const char *irqclass)
+{
+	struct lock_list *entry = other;
+	struct lock_list *middle = NULL;
+	int depth;
+
+	if (!debug_locks_off_graph_unlock() || debug_locks_silent)
+		return 0;
+
+	printk("\n");
+	printk("=========================================================\n");
+	printk("[ INFO: possible irq lock inversion dependency detected ]\n");
+	print_kernel_ident();
+	printk("---------------------------------------------------------\n");
+	printk("%s/%d just changed the state of lock:\n",
+		curr->comm, task_pid_nr(curr));
+	print_lock(this);
+	if (forwards)
+		printk("but this lock took another, %s-unsafe lock in the past:\n", irqclass);
+	else
+		printk("but this lock was taken by another, %s-safe lock in the past:\n", irqclass);
+	print_lock_name(other->class);
+	printk("\n\nand interrupts could create inverse lock ordering between them.\n\n");
+
+	printk("\nother info that might help us debug this:\n");
+
+	/* Find a middle lock (if one exists) */
+	depth = get_lock_depth(other);
+	do {
+		if (depth == 0 && (entry != root)) {
+			printk("lockdep:%s bad path found in chain graph\n", __func__);
+			break;
+		}
+		middle = entry;
+		entry = get_lock_parent(entry);
+		depth--;
+	} while (entry && entry != root && (depth >= 0));
+	if (forwards)
+		print_irq_lock_scenario(root, other,
+			middle ? middle->class : root->class, other->class);
+	else
+		print_irq_lock_scenario(other, root,
+			middle ? middle->class : other->class, root->class);
+
+	lockdep_print_held_locks(curr);
+
+	printk("\nthe shortest dependencies between 2nd lock and 1st lock:\n");
+	if (!save_trace(&root->trace))
+		return 0;
+	print_shortest_lock_dependencies(other, root);
+
+	printk("\nstack backtrace:\n");
+	dump_stack();
+
+	return 0;
+}
+
+/*
+ * Prove that in the forwards-direction subgraph starting at <this>
+ * there is no lock matching <mask>:
+ */
+static int
+check_usage_forwards(struct task_struct *curr, struct held_lock *this,
+		     enum lock_usage_bit bit, const char *irqclass)
+{
+	int ret;
+	struct lock_list root;
+	struct lock_list *uninitialized_var(target_entry);
+
+	root.parent = NULL;
+	root.class = hlock_class(this);
+	ret = find_usage_forwards(&root, bit, &target_entry);
+	if (ret < 0)
+		return print_bfs_bug(ret);
+	if (ret == 1)
+		return ret;
+
+	return print_irq_inversion_bug(curr, &root, target_entry,
+					this, 1, irqclass);
+}
+
+/*
+ * Prove that in the backwards-direction subgraph starting at <this>
+ * there is no lock matching <mask>:
+ */
+static int
+check_usage_backwards(struct task_struct *curr, struct held_lock *this,
+		      enum lock_usage_bit bit, const char *irqclass)
+{
+	int ret;
+	struct lock_list root;
+	struct lock_list *uninitialized_var(target_entry);
+
+	root.parent = NULL;
+	root.class = hlock_class(this);
+	ret = find_usage_backwards(&root, bit, &target_entry);
+	if (ret < 0)
+		return print_bfs_bug(ret);
+	if (ret == 1)
+		return ret;
+
+	return print_irq_inversion_bug(curr, &root, target_entry,
+					this, 0, irqclass);
+}
+
+void print_irqtrace_events(struct task_struct *curr)
+{
+	printk("irq event stamp: %u\n", curr->irq_events);
+	printk("hardirqs last  enabled at (%u): ", curr->hardirq_enable_event);
+	print_ip_sym(curr->hardirq_enable_ip);
+	printk("hardirqs last disabled at (%u): ", curr->hardirq_disable_event);
+	print_ip_sym(curr->hardirq_disable_ip);
+	printk("softirqs last  enabled at (%u): ", curr->softirq_enable_event);
+	print_ip_sym(curr->softirq_enable_ip);
+	printk("softirqs last disabled at (%u): ", curr->softirq_disable_event);
+	print_ip_sym(curr->softirq_disable_ip);
+}
+
+static int HARDIRQ_verbose(struct lock_class *class)
+{
+#if HARDIRQ_VERBOSE
+	return class_filter(class);
+#endif
+	return 0;
+}
+
+static int SOFTIRQ_verbose(struct lock_class *class)
+{
+#if SOFTIRQ_VERBOSE
+	return class_filter(class);
+#endif
+	return 0;
+}
+
+static int RECLAIM_FS_verbose(struct lock_class *class)
+{
+#if RECLAIM_VERBOSE
+	return class_filter(class);
+#endif
+	return 0;
+}
+
+#define STRICT_READ_CHECKS	1
+
+static int (*state_verbose_f[])(struct lock_class *class) = {
+#define LOCKDEP_STATE(__STATE) \
+	__STATE##_verbose,
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
+};
+
+static inline int state_verbose(enum lock_usage_bit bit,
+				struct lock_class *class)
+{
+	return state_verbose_f[bit >> 2](class);
+}
+
+typedef int (*check_usage_f)(struct task_struct *, struct held_lock *,
+			     enum lock_usage_bit bit, const char *name);
+
+static int
+mark_lock_irq(struct task_struct *curr, struct held_lock *this,
+		enum lock_usage_bit new_bit)
+{
+	int excl_bit = exclusive_bit(new_bit);
+	int read = new_bit & 1;
+	int dir = new_bit & 2;
+
+	/*
+	 * mark USED_IN has to look forwards -- to ensure no dependency
+	 * has ENABLED state, which would allow recursion deadlocks.
+	 *
+	 * mark ENABLED has to look backwards -- to ensure no dependee
+	 * has USED_IN state, which, again, would allow  recursion deadlocks.
+	 */
+	check_usage_f usage = dir ?
+		check_usage_backwards : check_usage_forwards;
+
+	/*
+	 * Validate that this particular lock does not have conflicting
+	 * usage states.
+	 */
+	if (!valid_state(curr, this, new_bit, excl_bit))
+		return 0;
+
+	/*
+	 * Validate that the lock dependencies don't have conflicting usage
+	 * states.
+	 */
+	if ((!read || !dir || STRICT_READ_CHECKS) &&
+			!usage(curr, this, excl_bit, state_name(new_bit & ~1)))
+		return 0;
+
+	/*
+	 * Check for read in write conflicts
+	 */
+	if (!read) {
+		if (!valid_state(curr, this, new_bit, excl_bit + 1))
+			return 0;
+
+		if (STRICT_READ_CHECKS &&
+			!usage(curr, this, excl_bit + 1,
+				state_name(new_bit + 1)))
+			return 0;
+	}
+
+	if (state_verbose(new_bit, hlock_class(this)))
+		return 2;
+
+	return 1;
+}
+
+enum mark_type {
+#define LOCKDEP_STATE(__STATE)	__STATE,
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
+};
+
+/*
+ * Mark all held locks with a usage bit:
+ */
+static int
+mark_held_locks(struct task_struct *curr, enum mark_type mark)
+{
+	enum lock_usage_bit usage_bit;
+	struct held_lock *hlock;
+	int i;
+
+	for (i = 0; i < curr->lockdep_depth; i++) {
+		hlock = curr->held_locks + i;
+
+		usage_bit = 2 + (mark << 2); /* ENABLED */
+		if (hlock->read)
+			usage_bit += 1; /* READ */
+
+		BUG_ON(usage_bit >= LOCK_USAGE_STATES);
+
+		if (hlock_class(hlock)->key == __lockdep_no_validate__.subkeys)
+			continue;
+
+		if (!mark_lock(curr, hlock, usage_bit))
+			return 0;
+	}
+
+	return 1;
+}
+
+/*
+ * Hardirqs will be enabled:
+ */
+static void __trace_hardirqs_on_caller(unsigned long ip)
+{
+	struct task_struct *curr = current;
+
+	/* we'll do an OFF -> ON transition: */
+	curr->hardirqs_enabled = 1;
+
+	/*
+	 * We are going to turn hardirqs on, so set the
+	 * usage bit for all held locks:
+	 */
+	if (!mark_held_locks(curr, HARDIRQ))
+		return;
+	/*
+	 * If we have softirqs enabled, then set the usage
+	 * bit for all held locks. (disabled hardirqs prevented
+	 * this bit from being set before)
+	 */
+	if (curr->softirqs_enabled)
+		if (!mark_held_locks(curr, SOFTIRQ))
+			return;
+
+	curr->hardirq_enable_ip = ip;
+	curr->hardirq_enable_event = ++curr->irq_events;
+	debug_atomic_inc(hardirqs_on_events);
+}
+
+void trace_hardirqs_on_caller(unsigned long ip)
+{
+	time_hardirqs_on(CALLER_ADDR0, ip);
+
+	if (unlikely(!debug_locks || current->lockdep_recursion))
+		return;
+
+	if (unlikely(current->hardirqs_enabled)) {
+		/*
+		 * Neither irq nor preemption are disabled here
+		 * so this is racy by nature but losing one hit
+		 * in a stat is not a big deal.
+		 */
+		__debug_atomic_inc(redundant_hardirqs_on);
+		return;
+	}
+
+	/*
+	 * We're enabling irqs and according to our state above irqs weren't
+	 * already enabled, yet we find the hardware thinks they are in fact
+	 * enabled.. someone messed up their IRQ state tracing.
+	 */
+	if (DEBUG_LOCKS_WARN_ON(!irqs_disabled()))
+		return;
+
+	/*
+	 * See the fine text that goes along with this variable definition.
+	 */
+	if (DEBUG_LOCKS_WARN_ON(unlikely(early_boot_irqs_disabled)))
+		return;
+
+	/*
+	 * Can't allow enabling interrupts while in an interrupt handler,
+	 * that's general bad form and such. Recursion, limited stack etc..
+	 */
+	if (DEBUG_LOCKS_WARN_ON(current->hardirq_context))
+		return;
+
+	current->lockdep_recursion = 1;
+	__trace_hardirqs_on_caller(ip);
+	current->lockdep_recursion = 0;
+}
+EXPORT_SYMBOL(trace_hardirqs_on_caller);
+
+void trace_hardirqs_on(void)
+{
+	trace_hardirqs_on_caller(CALLER_ADDR0);
+}
+EXPORT_SYMBOL(trace_hardirqs_on);
+
+/*
+ * Hardirqs were disabled:
+ */
+void trace_hardirqs_off_caller(unsigned long ip)
+{
+	struct task_struct *curr = current;
+
+	time_hardirqs_off(CALLER_ADDR0, ip);
+
+	if (unlikely(!debug_locks || current->lockdep_recursion))
+		return;
+
+	/*
+	 * So we're supposed to get called after you mask local IRQs, but for
+	 * some reason the hardware doesn't quite think you did a proper job.
+	 */
+	if (DEBUG_LOCKS_WARN_ON(!irqs_disabled()))
+		return;
+
+	if (curr->hardirqs_enabled) {
+		/*
+		 * We have done an ON -> OFF transition:
+		 */
+		curr->hardirqs_enabled = 0;
+		curr->hardirq_disable_ip = ip;
+		curr->hardirq_disable_event = ++curr->irq_events;
+		debug_atomic_inc(hardirqs_off_events);
+	} else
+		debug_atomic_inc(redundant_hardirqs_off);
+}
+EXPORT_SYMBOL(trace_hardirqs_off_caller);
+
+void trace_hardirqs_off(void)
+{
+	trace_hardirqs_off_caller(CALLER_ADDR0);
+}
+EXPORT_SYMBOL(trace_hardirqs_off);
+
+/*
+ * Softirqs will be enabled:
+ */
+void trace_softirqs_on(unsigned long ip)
+{
+	struct task_struct *curr = current;
+
+	if (unlikely(!debug_locks || current->lockdep_recursion))
+		return;
+
+	/*
+	 * We fancy IRQs being disabled here, see softirq.c, avoids
+	 * funny state and nesting things.
+	 */
+	if (DEBUG_LOCKS_WARN_ON(!irqs_disabled()))
+		return;
+
+	if (curr->softirqs_enabled) {
+		debug_atomic_inc(redundant_softirqs_on);
+		return;
+	}
+
+	current->lockdep_recursion = 1;
+	/*
+	 * We'll do an OFF -> ON transition:
+	 */
+	curr->softirqs_enabled = 1;
+	curr->softirq_enable_ip = ip;
+	curr->softirq_enable_event = ++curr->irq_events;
+	debug_atomic_inc(softirqs_on_events);
+	/*
+	 * We are going to turn softirqs on, so set the
+	 * usage bit for all held locks, if hardirqs are
+	 * enabled too:
+	 */
+	if (curr->hardirqs_enabled)
+		mark_held_locks(curr, SOFTIRQ);
+	current->lockdep_recursion = 0;
+}
+
+/*
+ * Softirqs were disabled:
+ */
+void trace_softirqs_off(unsigned long ip)
+{
+	struct task_struct *curr = current;
+
+	if (unlikely(!debug_locks || current->lockdep_recursion))
+		return;
+
+	/*
+	 * We fancy IRQs being disabled here, see softirq.c
+	 */
+	if (DEBUG_LOCKS_WARN_ON(!irqs_disabled()))
+		return;
+
+	if (curr->softirqs_enabled) {
+		/*
+		 * We have done an ON -> OFF transition:
+		 */
+		curr->softirqs_enabled = 0;
+		curr->softirq_disable_ip = ip;
+		curr->softirq_disable_event = ++curr->irq_events;
+		debug_atomic_inc(softirqs_off_events);
+		/*
+		 * Whoops, we wanted softirqs off, so why aren't they?
+		 */
+		DEBUG_LOCKS_WARN_ON(!softirq_count());
+	} else
+		debug_atomic_inc(redundant_softirqs_off);
+}
+
+static void __lockdep_trace_alloc(gfp_t gfp_mask, unsigned long flags)
+{
+	struct task_struct *curr = current;
+
+	if (unlikely(!debug_locks))
+		return;
+
+	/* no reclaim without waiting on it */
+	if (!(gfp_mask & __GFP_WAIT))
+		return;
+
+	/* this guy won't enter reclaim */
+	if ((curr->flags & PF_MEMALLOC) && !(gfp_mask & __GFP_NOMEMALLOC))
+		return;
+
+	/* We're only interested __GFP_FS allocations for now */
+	if (!(gfp_mask & __GFP_FS))
+		return;
+
+	/*
+	 * Oi! Can't be having __GFP_FS allocations with IRQs disabled.
+	 */
+	if (DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags)))
+		return;
+
+	mark_held_locks(curr, RECLAIM_FS);
+}
+
+static void check_flags(unsigned long flags);
+
+void lockdep_trace_alloc(gfp_t gfp_mask)
+{
+	unsigned long flags;
+
+	if (unlikely(current->lockdep_recursion))
+		return;
+
+	raw_local_irq_save(flags);
+	check_flags(flags);
+	current->lockdep_recursion = 1;
+	__lockdep_trace_alloc(gfp_mask, flags);
+	current->lockdep_recursion = 0;
+	raw_local_irq_restore(flags);
+}
+
+static int mark_irqflags(struct task_struct *curr, struct held_lock *hlock)
+{
+	/*
+	 * If non-trylock use in a hardirq or softirq context, then
+	 * mark the lock as used in these contexts:
+	 */
+	if (!hlock->trylock) {
+		if (hlock->read) {
+			if (curr->hardirq_context)
+				if (!mark_lock(curr, hlock,
+						LOCK_USED_IN_HARDIRQ_READ))
+					return 0;
+			if (curr->softirq_context)
+				if (!mark_lock(curr, hlock,
+						LOCK_USED_IN_SOFTIRQ_READ))
+					return 0;
+		} else {
+			if (curr->hardirq_context)
+				if (!mark_lock(curr, hlock, LOCK_USED_IN_HARDIRQ))
+					return 0;
+			if (curr->softirq_context)
+				if (!mark_lock(curr, hlock, LOCK_USED_IN_SOFTIRQ))
+					return 0;
+		}
+	}
+	if (!hlock->hardirqs_off) {
+		if (hlock->read) {
+			if (!mark_lock(curr, hlock,
+					LOCK_ENABLED_HARDIRQ_READ))
+				return 0;
+			if (curr->softirqs_enabled)
+				if (!mark_lock(curr, hlock,
+						LOCK_ENABLED_SOFTIRQ_READ))
+					return 0;
+		} else {
+			if (!mark_lock(curr, hlock,
+					LOCK_ENABLED_HARDIRQ))
+				return 0;
+			if (curr->softirqs_enabled)
+				if (!mark_lock(curr, hlock,
+						LOCK_ENABLED_SOFTIRQ))
+					return 0;
+		}
+	}
+
+	/*
+	 * We reuse the irq context infrastructure more broadly as a general
+	 * context checking code. This tests GFP_FS recursion (a lock taken
+	 * during reclaim for a GFP_FS allocation is held over a GFP_FS
+	 * allocation).
+	 */
+	if (!hlock->trylock && (curr->lockdep_reclaim_gfp & __GFP_FS)) {
+		if (hlock->read) {
+			if (!mark_lock(curr, hlock, LOCK_USED_IN_RECLAIM_FS_READ))
+					return 0;
+		} else {
+			if (!mark_lock(curr, hlock, LOCK_USED_IN_RECLAIM_FS))
+					return 0;
+		}
+	}
+
+	return 1;
+}
+
+static int separate_irq_context(struct task_struct *curr,
+		struct held_lock *hlock)
+{
+	unsigned int depth = curr->lockdep_depth;
+
+	/*
+	 * Keep track of points where we cross into an interrupt context:
+	 */
+	hlock->irq_context = 2*(curr->hardirq_context ? 1 : 0) +
+				curr->softirq_context;
+	if (depth) {
+		struct held_lock *prev_hlock;
+
+		prev_hlock = curr->held_locks + depth-1;
+		/*
+		 * If we cross into another context, reset the
+		 * hash key (this also prevents the checking and the
+		 * adding of the dependency to 'prev'):
+		 */
+		if (prev_hlock->irq_context != hlock->irq_context)
+			return 1;
+	}
+	return 0;
+}
+
+#else /* defined(CONFIG_TRACE_IRQFLAGS) && defined(CONFIG_PROVE_LOCKING) */
+
+static inline
+int mark_lock_irq(struct task_struct *curr, struct held_lock *this,
+		enum lock_usage_bit new_bit)
+{
+	WARN_ON(1); /* Impossible innit? when we don't have TRACE_IRQFLAG */
+	return 1;
+}
+
+static inline int mark_irqflags(struct task_struct *curr,
+		struct held_lock *hlock)
+{
+	return 1;
+}
+
+static inline int separate_irq_context(struct task_struct *curr,
+		struct held_lock *hlock)
+{
+	return 0;
+}
+
+void lockdep_trace_alloc(gfp_t gfp_mask)
+{
+}
+
+#endif /* defined(CONFIG_TRACE_IRQFLAGS) && defined(CONFIG_PROVE_LOCKING) */
+
+/*
+ * Mark a lock with a usage bit, and validate the state transition:
+ */
+static int mark_lock(struct task_struct *curr, struct held_lock *this,
+			     enum lock_usage_bit new_bit)
+{
+	unsigned int new_mask = 1 << new_bit, ret = 1;
+
+	/*
+	 * If already set then do not dirty the cacheline,
+	 * nor do any checks:
+	 */
+	if (likely(hlock_class(this)->usage_mask & new_mask))
+		return 1;
+
+	if (!graph_lock())
+		return 0;
+	/*
+	 * Make sure we didn't race:
+	 */
+	if (unlikely(hlock_class(this)->usage_mask & new_mask)) {
+		graph_unlock();
+		return 1;
+	}
+
+	hlock_class(this)->usage_mask |= new_mask;
+
+	if (!save_trace(hlock_class(this)->usage_traces + new_bit))
+		return 0;
+
+	switch (new_bit) {
+#define LOCKDEP_STATE(__STATE)			\
+	case LOCK_USED_IN_##__STATE:		\
+	case LOCK_USED_IN_##__STATE##_READ:	\
+	case LOCK_ENABLED_##__STATE:		\
+	case LOCK_ENABLED_##__STATE##_READ:
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
+		ret = mark_lock_irq(curr, this, new_bit);
+		if (!ret)
+			return 0;
+		break;
+	case LOCK_USED:
+		debug_atomic_dec(nr_unused_locks);
+		break;
+	default:
+		if (!debug_locks_off_graph_unlock())
+			return 0;
+		WARN_ON(1);
+		return 0;
+	}
+
+	graph_unlock();
+
+	/*
+	 * We must printk outside of the graph_lock:
+	 */
+	if (ret == 2) {
+		printk("\nmarked lock as {%s}:\n", usage_str[new_bit]);
+		print_lock(this);
+		print_irqtrace_events(curr);
+		dump_stack();
+	}
+
+	return ret;
+}
+
+/*
+ * Initialize a lock instance's lock-class mapping info:
+ */
+void lockdep_init_map(struct lockdep_map *lock, const char *name,
+		      struct lock_class_key *key, int subclass)
+{
+	int i;
+
+	kmemcheck_mark_initialized(lock, sizeof(*lock));
+
+	for (i = 0; i < NR_LOCKDEP_CACHING_CLASSES; i++)
+		lock->class_cache[i] = NULL;
+
+#ifdef CONFIG_LOCK_STAT
+	lock->cpu = raw_smp_processor_id();
+#endif
+
+	/*
+	 * Can't be having no nameless bastards around this place!
+	 */
+	if (DEBUG_LOCKS_WARN_ON(!name)) {
+		lock->name = "NULL";
+		return;
+	}
+
+	lock->name = name;
+
+	/*
+	 * No key, no joy, we need to hash something.
+	 */
+	if (DEBUG_LOCKS_WARN_ON(!key))
+		return;
+	/*
+	 * Sanity check, the lock-class key must be persistent:
+	 */
+	if (!static_obj(key)) {
+		printk("BUG: key %p not in .data!\n", key);
+		/*
+		 * What it says above ^^^^^, I suggest you read it.
+		 */
+		DEBUG_LOCKS_WARN_ON(1);
+		return;
+	}
+	lock->key = key;
+
+	if (unlikely(!debug_locks))
+		return;
+
+	if (subclass)
+		register_lock_class(lock, subclass, 1);
+}
+EXPORT_SYMBOL_GPL(lockdep_init_map);
+
+struct lock_class_key __lockdep_no_validate__;
+EXPORT_SYMBOL_GPL(__lockdep_no_validate__);
+
+static int
+print_lock_nested_lock_not_held(struct task_struct *curr,
+				struct held_lock *hlock,
+				unsigned long ip)
+{
+	if (!debug_locks_off())
+		return 0;
+	if (debug_locks_silent)
+		return 0;
+
+	printk("\n");
+	printk("==================================\n");
+	printk("[ BUG: Nested lock was not taken ]\n");
+	print_kernel_ident();
+	printk("----------------------------------\n");
+
+	printk("%s/%d is trying to lock:\n", curr->comm, task_pid_nr(curr));
+	print_lock(hlock);
+
+	printk("\nbut this task is not holding:\n");
+	printk("%s\n", hlock->nest_lock->name);
+
+	printk("\nstack backtrace:\n");
+	dump_stack();
+
+	printk("\nother info that might help us debug this:\n");
+	lockdep_print_held_locks(curr);
+
+	printk("\nstack backtrace:\n");
+	dump_stack();
+
+	return 0;
+}
+
+static int __lock_is_held(struct lockdep_map *lock);
+
+/*
+ * This gets called for every mutex_lock*()/spin_lock*() operation.
+ * We maintain the dependency maps and validate the locking attempt:
+ */
+static int __lock_acquire(struct lockdep_map *lock, unsigned int subclass,
+			  int trylock, int read, int check, int hardirqs_off,
+			  struct lockdep_map *nest_lock, unsigned long ip,
+			  int references)
+{
+	struct task_struct *curr = current;
+	struct lock_class *class = NULL;
+	struct held_lock *hlock;
+	unsigned int depth, id;
+	int chain_head = 0;
+	int class_idx;
+	u64 chain_key;
+
+	if (!prove_locking)
+		check = 1;
+
+	if (unlikely(!debug_locks))
+		return 0;
+
+	/*
+	 * Lockdep should run with IRQs disabled, otherwise we could
+	 * get an interrupt which would want to take locks, which would
+	 * end up in lockdep and have you got a head-ache already?
+	 */
+	if (DEBUG_LOCKS_WARN_ON(!irqs_disabled()))
+		return 0;
+
+	if (lock->key == &__lockdep_no_validate__)
+		check = 1;
+
+	if (subclass < NR_LOCKDEP_CACHING_CLASSES)
+		class = lock->class_cache[subclass];
+	/*
+	 * Not cached?
+	 */
+	if (unlikely(!class)) {
+		class = register_lock_class(lock, subclass, 0);
+		if (!class)
+			return 0;
+	}
+	atomic_inc((atomic_t *)&class->ops);
+	if (very_verbose(class)) {
+		printk("\nacquire class [%p] %s", class->key, class->name);
+		if (class->name_version > 1)
+			printk("#%d", class->name_version);
+		printk("\n");
+		dump_stack();
+	}
+
+	/*
+	 * Add the lock to the list of currently held locks.
+	 * (we dont increase the depth just yet, up until the
+	 * dependency checks are done)
+	 */
+	depth = curr->lockdep_depth;
+	/*
+	 * Ran out of static storage for our per-task lock stack again have we?
+	 */
+	if (DEBUG_LOCKS_WARN_ON(depth >= MAX_LOCK_DEPTH))
+		return 0;
+
+	class_idx = class - lock_classes + 1;
+
+	if (depth) {
+		hlock = curr->held_locks + depth - 1;
+		if (hlock->class_idx == class_idx && nest_lock) {
+			if (hlock->references)
+				hlock->references++;
+			else
+				hlock->references = 2;
+
+			return 1;
+		}
+	}
+
+	hlock = curr->held_locks + depth;
+	/*
+	 * Plain impossible, we just registered it and checked it weren't no
+	 * NULL like.. I bet this mushroom I ate was good!
+	 */
+	if (DEBUG_LOCKS_WARN_ON(!class))
+		return 0;
+	hlock->class_idx = class_idx;
+	hlock->acquire_ip = ip;
+	hlock->instance = lock;
+	hlock->nest_lock = nest_lock;
+	hlock->trylock = trylock;
+	hlock->read = read;
+	hlock->check = check;
+	hlock->hardirqs_off = !!hardirqs_off;
+	hlock->references = references;
+#ifdef CONFIG_LOCK_STAT
+	hlock->waittime_stamp = 0;
+	hlock->holdtime_stamp = lockstat_clock();
+#endif
+
+	if (check == 2 && !mark_irqflags(curr, hlock))
+		return 0;
+
+	/* mark it as used: */
+	if (!mark_lock(curr, hlock, LOCK_USED))
+		return 0;
+
+	/*
+	 * Calculate the chain hash: it's the combined hash of all the
+	 * lock keys along the dependency chain. We save the hash value
+	 * at every step so that we can get the current hash easily
+	 * after unlock. The chain hash is then used to cache dependency
+	 * results.
+	 *
+	 * The 'key ID' is what is the most compact key value to drive
+	 * the hash, not class->key.
+	 */
+	id = class - lock_classes;
+	/*
+	 * Whoops, we did it again.. ran straight out of our static allocation.
+	 */
+	if (DEBUG_LOCKS_WARN_ON(id >= MAX_LOCKDEP_KEYS))
+		return 0;
+
+	chain_key = curr->curr_chain_key;
+	if (!depth) {
+		/*
+		 * How can we have a chain hash when we ain't got no keys?!
+		 */
+		if (DEBUG_LOCKS_WARN_ON(chain_key != 0))
+			return 0;
+		chain_head = 1;
+	}
+
+	hlock->prev_chain_key = chain_key;
+	if (separate_irq_context(curr, hlock)) {
+		chain_key = 0;
+		chain_head = 1;
+	}
+	chain_key = iterate_chain_key(chain_key, id);
+
+	if (nest_lock && !__lock_is_held(nest_lock))
+		return print_lock_nested_lock_not_held(curr, hlock, ip);
+
+	if (!validate_chain(curr, lock, hlock, chain_head, chain_key))
+		return 0;
+
+	curr->curr_chain_key = chain_key;
+	curr->lockdep_depth++;
+	check_chain_key(curr);
+#ifdef CONFIG_DEBUG_LOCKDEP
+	if (unlikely(!debug_locks))
+		return 0;
+#endif
+	if (unlikely(curr->lockdep_depth >= MAX_LOCK_DEPTH)) {
+		debug_locks_off();
+		print_lockdep_off("BUG: MAX_LOCK_DEPTH too low!");
+		printk(KERN_DEBUG "depth: %i  max: %lu!\n",
+		       curr->lockdep_depth, MAX_LOCK_DEPTH);
+
+		lockdep_print_held_locks(current);
+		debug_show_all_locks();
+		dump_stack();
+
+		return 0;
+	}
+
+	if (unlikely(curr->lockdep_depth > max_lockdep_depth))
+		max_lockdep_depth = curr->lockdep_depth;
+
+	return 1;
+}
+
+static int
+print_unlock_imbalance_bug(struct task_struct *curr, struct lockdep_map *lock,
+			   unsigned long ip)
+{
+	if (!debug_locks_off())
+		return 0;
+	if (debug_locks_silent)
+		return 0;
+
+	printk("\n");
+	printk("=====================================\n");
+	printk("[ BUG: bad unlock balance detected! ]\n");
+	print_kernel_ident();
+	printk("-------------------------------------\n");
+	printk("%s/%d is trying to release lock (",
+		curr->comm, task_pid_nr(curr));
+	print_lockdep_cache(lock);
+	printk(") at:\n");
+	print_ip_sym(ip);
+	printk("but there are no more locks to release!\n");
+	printk("\nother info that might help us debug this:\n");
+	lockdep_print_held_locks(curr);
+
+	printk("\nstack backtrace:\n");
+	dump_stack();
+
+	return 0;
+}
+
+/*
+ * Common debugging checks for both nested and non-nested unlock:
+ */
+static int check_unlock(struct task_struct *curr, struct lockdep_map *lock,
+			unsigned long ip)
+{
+	if (unlikely(!debug_locks))
+		return 0;
+	/*
+	 * Lockdep should run with IRQs disabled, recursion, head-ache, etc..
+	 */
+	if (DEBUG_LOCKS_WARN_ON(!irqs_disabled()))
+		return 0;
+
+	if (curr->lockdep_depth <= 0)
+		return print_unlock_imbalance_bug(curr, lock, ip);
+
+	return 1;
+}
+
+static int match_held_lock(struct held_lock *hlock, struct lockdep_map *lock)
+{
+	if (hlock->instance == lock)
+		return 1;
+
+	if (hlock->references) {
+		struct lock_class *class = lock->class_cache[0];
+
+		if (!class)
+			class = look_up_lock_class(lock, 0);
+
+		/*
+		 * If look_up_lock_class() failed to find a class, we're trying
+		 * to test if we hold a lock that has never yet been acquired.
+		 * Clearly if the lock hasn't been acquired _ever_, we're not
+		 * holding it either, so report failure.
+		 */
+		if (!class)
+			return 0;
+
+		/*
+		 * References, but not a lock we're actually ref-counting?
+		 * State got messed up, follow the sites that change ->references
+		 * and try to make sense of it.
+		 */
+		if (DEBUG_LOCKS_WARN_ON(!hlock->nest_lock))
+			return 0;
+
+		if (hlock->class_idx == class - lock_classes + 1)
+			return 1;
+	}
+
+	return 0;
+}
+
+static int
+__lock_set_class(struct lockdep_map *lock, const char *name,
+		 struct lock_class_key *key, unsigned int subclass,
+		 unsigned long ip)
+{
+	struct task_struct *curr = current;
+	struct held_lock *hlock, *prev_hlock;
+	struct lock_class *class;
+	unsigned int depth;
+	int i;
+
+	depth = curr->lockdep_depth;
+	/*
+	 * This function is about (re)setting the class of a held lock,
+	 * yet we're not actually holding any locks. Naughty user!
+	 */
+	if (DEBUG_LOCKS_WARN_ON(!depth))
+		return 0;
+
+	prev_hlock = NULL;
+	for (i = depth-1; i >= 0; i--) {
+		hlock = curr->held_locks + i;
+		/*
+		 * We must not cross into another context:
+		 */
+		if (prev_hlock && prev_hlock->irq_context != hlock->irq_context)
+			break;
+		if (match_held_lock(hlock, lock))
+			goto found_it;
+		prev_hlock = hlock;
+	}
+	return print_unlock_imbalance_bug(curr, lock, ip);
+
+found_it:
+	lockdep_init_map(lock, name, key, 0);
+	class = register_lock_class(lock, subclass, 0);
+	hlock->class_idx = class - lock_classes + 1;
+
+	curr->lockdep_depth = i;
+	curr->curr_chain_key = hlock->prev_chain_key;
+
+	for (; i < depth; i++) {
+		hlock = curr->held_locks + i;
+		if (!__lock_acquire(hlock->instance,
+			hlock_class(hlock)->subclass, hlock->trylock,
+				hlock->read, hlock->check, hlock->hardirqs_off,
+				hlock->nest_lock, hlock->acquire_ip,
+				hlock->references))
+			return 0;
+	}
+
+	/*
+	 * I took it apart and put it back together again, except now I have
+	 * these 'spare' parts.. where shall I put them.
+	 */
+	if (DEBUG_LOCKS_WARN_ON(curr->lockdep_depth != depth))
+		return 0;
+	return 1;
+}
+
+/*
+ * Remove the lock to the list of currently held locks in a
+ * potentially non-nested (out of order) manner. This is a
+ * relatively rare operation, as all the unlock APIs default
+ * to nested mode (which uses lock_release()):
+ */
+static int
+lock_release_non_nested(struct task_struct *curr,
+			struct lockdep_map *lock, unsigned long ip)
+{
+	struct held_lock *hlock, *prev_hlock;
+	unsigned int depth;
+	int i;
+
+	/*
+	 * Check whether the lock exists in the current stack
+	 * of held locks:
+	 */
+	depth = curr->lockdep_depth;
+	/*
+	 * So we're all set to release this lock.. wait what lock? We don't
+	 * own any locks, you've been drinking again?
+	 */
+	if (DEBUG_LOCKS_WARN_ON(!depth))
+		return 0;
+
+	prev_hlock = NULL;
+	for (i = depth-1; i >= 0; i--) {
+		hlock = curr->held_locks + i;
+		/*
+		 * We must not cross into another context:
+		 */
+		if (prev_hlock && prev_hlock->irq_context != hlock->irq_context)
+			break;
+		if (match_held_lock(hlock, lock))
+			goto found_it;
+		prev_hlock = hlock;
+	}
+	return print_unlock_imbalance_bug(curr, lock, ip);
+
+found_it:
+	if (hlock->instance == lock)
+		lock_release_holdtime(hlock);
+
+	if (hlock->references) {
+		hlock->references--;
+		if (hlock->references) {
+			/*
+			 * We had, and after removing one, still have
+			 * references, the current lock stack is still
+			 * valid. We're done!
+			 */
+			return 1;
+		}
+	}
+
+	/*
+	 * We have the right lock to unlock, 'hlock' points to it.
+	 * Now we remove it from the stack, and add back the other
+	 * entries (if any), recalculating the hash along the way:
+	 */
+
+	curr->lockdep_depth = i;
+	curr->curr_chain_key = hlock->prev_chain_key;
+
+	for (i++; i < depth; i++) {
+		hlock = curr->held_locks + i;
+		if (!__lock_acquire(hlock->instance,
+			hlock_class(hlock)->subclass, hlock->trylock,
+				hlock->read, hlock->check, hlock->hardirqs_off,
+				hlock->nest_lock, hlock->acquire_ip,
+				hlock->references))
+			return 0;
+	}
+
+	/*
+	 * We had N bottles of beer on the wall, we drank one, but now
+	 * there's not N-1 bottles of beer left on the wall...
+	 */
+	if (DEBUG_LOCKS_WARN_ON(curr->lockdep_depth != depth - 1))
+		return 0;
+	return 1;
+}
+
+/*
+ * Remove the lock to the list of currently held locks - this gets
+ * called on mutex_unlock()/spin_unlock*() (or on a failed
+ * mutex_lock_interruptible()). This is done for unlocks that nest
+ * perfectly. (i.e. the current top of the lock-stack is unlocked)
+ */
+static int lock_release_nested(struct task_struct *curr,
+			       struct lockdep_map *lock, unsigned long ip)
+{
+	struct held_lock *hlock;
+	unsigned int depth;
+
+	/*
+	 * Pop off the top of the lock stack:
+	 */
+	depth = curr->lockdep_depth - 1;
+	hlock = curr->held_locks + depth;
+
+	/*
+	 * Is the unlock non-nested:
+	 */
+	if (hlock->instance != lock || hlock->references)
+		return lock_release_non_nested(curr, lock, ip);
+	curr->lockdep_depth--;
+
+	/*
+	 * No more locks, but somehow we've got hash left over, who left it?
+	 */
+	if (DEBUG_LOCKS_WARN_ON(!depth && (hlock->prev_chain_key != 0)))
+		return 0;
+
+	curr->curr_chain_key = hlock->prev_chain_key;
+
+	lock_release_holdtime(hlock);
+
+#ifdef CONFIG_DEBUG_LOCKDEP
+	hlock->prev_chain_key = 0;
+	hlock->class_idx = 0;
+	hlock->acquire_ip = 0;
+	hlock->irq_context = 0;
+#endif
+	return 1;
+}
+
+/*
+ * Remove the lock to the list of currently held locks - this gets
+ * called on mutex_unlock()/spin_unlock*() (or on a failed
+ * mutex_lock_interruptible()). This is done for unlocks that nest
+ * perfectly. (i.e. the current top of the lock-stack is unlocked)
+ */
+static void
+__lock_release(struct lockdep_map *lock, int nested, unsigned long ip)
+{
+	struct task_struct *curr = current;
+
+	if (!check_unlock(curr, lock, ip))
+		return;
+
+	if (nested) {
+		if (!lock_release_nested(curr, lock, ip))
+			return;
+	} else {
+		if (!lock_release_non_nested(curr, lock, ip))
+			return;
+	}
+
+	check_chain_key(curr);
+}
+
+static int __lock_is_held(struct lockdep_map *lock)
+{
+	struct task_struct *curr = current;
+	int i;
+
+	for (i = 0; i < curr->lockdep_depth; i++) {
+		struct held_lock *hlock = curr->held_locks + i;
+
+		if (match_held_lock(hlock, lock))
+			return 1;
+	}
+
+	return 0;
+}
+
+/*
+ * Check whether we follow the irq-flags state precisely:
+ */
+static void check_flags(unsigned long flags)
+{
+#if defined(CONFIG_PROVE_LOCKING) && defined(CONFIG_DEBUG_LOCKDEP) && \
+    defined(CONFIG_TRACE_IRQFLAGS)
+	if (!debug_locks)
+		return;
+
+	if (irqs_disabled_flags(flags)) {
+		if (DEBUG_LOCKS_WARN_ON(current->hardirqs_enabled)) {
+			printk("possible reason: unannotated irqs-off.\n");
+		}
+	} else {
+		if (DEBUG_LOCKS_WARN_ON(!current->hardirqs_enabled)) {
+			printk("possible reason: unannotated irqs-on.\n");
+		}
+	}
+
+	/*
+	 * We dont accurately track softirq state in e.g.
+	 * hardirq contexts (such as on 4KSTACKS), so only
+	 * check if not in hardirq contexts:
+	 */
+	if (!hardirq_count()) {
+		if (softirq_count()) {
+			/* like the above, but with softirqs */
+			DEBUG_LOCKS_WARN_ON(current->softirqs_enabled);
+		} else {
+			/* lick the above, does it taste good? */
+			DEBUG_LOCKS_WARN_ON(!current->softirqs_enabled);
+		}
+	}
+
+	if (!debug_locks)
+		print_irqtrace_events(current);
+#endif
+}
+
+void lock_set_class(struct lockdep_map *lock, const char *name,
+		    struct lock_class_key *key, unsigned int subclass,
+		    unsigned long ip)
+{
+	unsigned long flags;
+
+	if (unlikely(current->lockdep_recursion))
+		return;
+
+	raw_local_irq_save(flags);
+	current->lockdep_recursion = 1;
+	check_flags(flags);
+	if (__lock_set_class(lock, name, key, subclass, ip))
+		check_chain_key(current);
+	current->lockdep_recursion = 0;
+	raw_local_irq_restore(flags);
+}
+EXPORT_SYMBOL_GPL(lock_set_class);
+
+/*
+ * We are not always called with irqs disabled - do that here,
+ * and also avoid lockdep recursion:
+ */
+void lock_acquire(struct lockdep_map *lock, unsigned int subclass,
+			  int trylock, int read, int check,
+			  struct lockdep_map *nest_lock, unsigned long ip)
+{
+	unsigned long flags;
+
+	if (unlikely(current->lockdep_recursion))
+		return;
+
+	raw_local_irq_save(flags);
+	check_flags(flags);
+
+	current->lockdep_recursion = 1;
+	trace_lock_acquire(lock, subclass, trylock, read, check, nest_lock, ip);
+	__lock_acquire(lock, subclass, trylock, read, check,
+		       irqs_disabled_flags(flags), nest_lock, ip, 0);
+	current->lockdep_recursion = 0;
+	raw_local_irq_restore(flags);
+}
+EXPORT_SYMBOL_GPL(lock_acquire);
+
+void lock_release(struct lockdep_map *lock, int nested,
+			  unsigned long ip)
+{
+	unsigned long flags;
+
+	if (unlikely(current->lockdep_recursion))
+		return;
+
+	raw_local_irq_save(flags);
+	check_flags(flags);
+	current->lockdep_recursion = 1;
+	trace_lock_release(lock, ip);
+	__lock_release(lock, nested, ip);
+	current->lockdep_recursion = 0;
+	raw_local_irq_restore(flags);
+}
+EXPORT_SYMBOL_GPL(lock_release);
+
+int lock_is_held(struct lockdep_map *lock)
+{
+	unsigned long flags;
+	int ret = 0;
+
+	if (unlikely(current->lockdep_recursion))
+		return 1; /* avoid false negative lockdep_assert_held() */
+
+	raw_local_irq_save(flags);
+	check_flags(flags);
+
+	current->lockdep_recursion = 1;
+	ret = __lock_is_held(lock);
+	current->lockdep_recursion = 0;
+	raw_local_irq_restore(flags);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(lock_is_held);
+
+void lockdep_set_current_reclaim_state(gfp_t gfp_mask)
+{
+	current->lockdep_reclaim_gfp = gfp_mask;
+}
+
+void lockdep_clear_current_reclaim_state(void)
+{
+	current->lockdep_reclaim_gfp = 0;
+}
+
+#ifdef CONFIG_LOCK_STAT
+static int
+print_lock_contention_bug(struct task_struct *curr, struct lockdep_map *lock,
+			   unsigned long ip)
+{
+	if (!debug_locks_off())
+		return 0;
+	if (debug_locks_silent)
+		return 0;
+
+	printk("\n");
+	printk("=================================\n");
+	printk("[ BUG: bad contention detected! ]\n");
+	print_kernel_ident();
+	printk("---------------------------------\n");
+	printk("%s/%d is trying to contend lock (",
+		curr->comm, task_pid_nr(curr));
+	print_lockdep_cache(lock);
+	printk(") at:\n");
+	print_ip_sym(ip);
+	printk("but there are no locks held!\n");
+	printk("\nother info that might help us debug this:\n");
+	lockdep_print_held_locks(curr);
+
+	printk("\nstack backtrace:\n");
+	dump_stack();
+
+	return 0;
+}
+
+static void
+__lock_contended(struct lockdep_map *lock, unsigned long ip)
+{
+	struct task_struct *curr = current;
+	struct held_lock *hlock, *prev_hlock;
+	struct lock_class_stats *stats;
+	unsigned int depth;
+	int i, contention_point, contending_point;
+
+	depth = curr->lockdep_depth;
+	/*
+	 * Whee, we contended on this lock, except it seems we're not
+	 * actually trying to acquire anything much at all..
+	 */
+	if (DEBUG_LOCKS_WARN_ON(!depth))
+		return;
+
+	prev_hlock = NULL;
+	for (i = depth-1; i >= 0; i--) {
+		hlock = curr->held_locks + i;
+		/*
+		 * We must not cross into another context:
+		 */
+		if (prev_hlock && prev_hlock->irq_context != hlock->irq_context)
+			break;
+		if (match_held_lock(hlock, lock))
+			goto found_it;
+		prev_hlock = hlock;
+	}
+	print_lock_contention_bug(curr, lock, ip);
+	return;
+
+found_it:
+	if (hlock->instance != lock)
+		return;
+
+	hlock->waittime_stamp = lockstat_clock();
+
+	contention_point = lock_point(hlock_class(hlock)->contention_point, ip);
+	contending_point = lock_point(hlock_class(hlock)->contending_point,
+				      lock->ip);
+
+	stats = get_lock_stats(hlock_class(hlock));
+	if (contention_point < LOCKSTAT_POINTS)
+		stats->contention_point[contention_point]++;
+	if (contending_point < LOCKSTAT_POINTS)
+		stats->contending_point[contending_point]++;
+	if (lock->cpu != smp_processor_id())
+		stats->bounces[bounce_contended + !!hlock->read]++;
+	put_lock_stats(stats);
+}
+
+static void
+__lock_acquired(struct lockdep_map *lock, unsigned long ip)
+{
+	struct task_struct *curr = current;
+	struct held_lock *hlock, *prev_hlock;
+	struct lock_class_stats *stats;
+	unsigned int depth;
+	u64 now, waittime = 0;
+	int i, cpu;
+
+	depth = curr->lockdep_depth;
+	/*
+	 * Yay, we acquired ownership of this lock we didn't try to
+	 * acquire, how the heck did that happen?
+	 */
+	if (DEBUG_LOCKS_WARN_ON(!depth))
+		return;
+
+	prev_hlock = NULL;
+	for (i = depth-1; i >= 0; i--) {
+		hlock = curr->held_locks + i;
+		/*
+		 * We must not cross into another context:
+		 */
+		if (prev_hlock && prev_hlock->irq_context != hlock->irq_context)
+			break;
+		if (match_held_lock(hlock, lock))
+			goto found_it;
+		prev_hlock = hlock;
+	}
+	print_lock_contention_bug(curr, lock, _RET_IP_);
+	return;
+
+found_it:
+	if (hlock->instance != lock)
+		return;
+
+	cpu = smp_processor_id();
+	if (hlock->waittime_stamp) {
+		now = lockstat_clock();
+		waittime = now - hlock->waittime_stamp;
+		hlock->holdtime_stamp = now;
+	}
+
+	trace_lock_acquired(lock, ip);
+
+	stats = get_lock_stats(hlock_class(hlock));
+	if (waittime) {
+		if (hlock->read)
+			lock_time_inc(&stats->read_waittime, waittime);
+		else
+			lock_time_inc(&stats->write_waittime, waittime);
+	}
+	if (lock->cpu != cpu)
+		stats->bounces[bounce_acquired + !!hlock->read]++;
+	put_lock_stats(stats);
+
+	lock->cpu = cpu;
+	lock->ip = ip;
+}
+
+void lock_contended(struct lockdep_map *lock, unsigned long ip)
+{
+	unsigned long flags;
+
+	if (unlikely(!lock_stat))
+		return;
+
+	if (unlikely(current->lockdep_recursion))
+		return;
+
+	raw_local_irq_save(flags);
+	check_flags(flags);
+	current->lockdep_recursion = 1;
+	trace_lock_contended(lock, ip);
+	__lock_contended(lock, ip);
+	current->lockdep_recursion = 0;
+	raw_local_irq_restore(flags);
+}
+EXPORT_SYMBOL_GPL(lock_contended);
+
+void lock_acquired(struct lockdep_map *lock, unsigned long ip)
+{
+	unsigned long flags;
+
+	if (unlikely(!lock_stat))
+		return;
+
+	if (unlikely(current->lockdep_recursion))
+		return;
+
+	raw_local_irq_save(flags);
+	check_flags(flags);
+	current->lockdep_recursion = 1;
+	__lock_acquired(lock, ip);
+	current->lockdep_recursion = 0;
+	raw_local_irq_restore(flags);
+}
+EXPORT_SYMBOL_GPL(lock_acquired);
+#endif
+
+/*
+ * Used by the testsuite, sanitize the validator state
+ * after a simulated failure:
+ */
+
+void lockdep_reset(void)
+{
+	unsigned long flags;
+	int i;
+
+	raw_local_irq_save(flags);
+	current->curr_chain_key = 0;
+	current->lockdep_depth = 0;
+	current->lockdep_recursion = 0;
+	memset(current->held_locks, 0, MAX_LOCK_DEPTH*sizeof(struct held_lock));
+	nr_hardirq_chains = 0;
+	nr_softirq_chains = 0;
+	nr_process_chains = 0;
+	debug_locks = 1;
+	for (i = 0; i < CHAINHASH_SIZE; i++)
+		INIT_LIST_HEAD(chainhash_table + i);
+	raw_local_irq_restore(flags);
+}
+
+static void zap_class(struct lock_class *class)
+{
+	int i;
+
+	/*
+	 * Remove all dependencies this lock is
+	 * involved in:
+	 */
+	for (i = 0; i < nr_list_entries; i++) {
+		if (list_entries[i].class == class)
+			list_del_rcu(&list_entries[i].entry);
+	}
+	/*
+	 * Unhash the class and remove it from the all_lock_classes list:
+	 */
+	list_del_rcu(&class->hash_entry);
+	list_del_rcu(&class->lock_entry);
+
+	class->key = NULL;
+}
+
+static inline int within(const void *addr, void *start, unsigned long size)
+{
+	return addr >= start && addr < start + size;
+}
+
+void lockdep_free_key_range(void *start, unsigned long size)
+{
+	struct lock_class *class, *next;
+	struct list_head *head;
+	unsigned long flags;
+	int i;
+	int locked;
+
+	raw_local_irq_save(flags);
+	locked = graph_lock();
+
+	/*
+	 * Unhash all classes that were created by this module:
+	 */
+	for (i = 0; i < CLASSHASH_SIZE; i++) {
+		head = classhash_table + i;
+		if (list_empty(head))
+			continue;
+		list_for_each_entry_safe(class, next, head, hash_entry) {
+			if (within(class->key, start, size))
+				zap_class(class);
+			else if (within(class->name, start, size))
+				zap_class(class);
+		}
+	}
+
+	if (locked)
+		graph_unlock();
+	raw_local_irq_restore(flags);
+}
+
+void lockdep_reset_lock(struct lockdep_map *lock)
+{
+	struct lock_class *class, *next;
+	struct list_head *head;
+	unsigned long flags;
+	int i, j;
+	int locked;
+
+	raw_local_irq_save(flags);
+
+	/*
+	 * Remove all classes this lock might have:
+	 */
+	for (j = 0; j < MAX_LOCKDEP_SUBCLASSES; j++) {
+		/*
+		 * If the class exists we look it up and zap it:
+		 */
+		class = look_up_lock_class(lock, j);
+		if (class)
+			zap_class(class);
+	}
+	/*
+	 * Debug check: in the end all mapped classes should
+	 * be gone.
+	 */
+	locked = graph_lock();
+	for (i = 0; i < CLASSHASH_SIZE; i++) {
+		head = classhash_table + i;
+		if (list_empty(head))
+			continue;
+		list_for_each_entry_safe(class, next, head, hash_entry) {
+			int match = 0;
+
+			for (j = 0; j < NR_LOCKDEP_CACHING_CLASSES; j++)
+				match |= class == lock->class_cache[j];
+
+			if (unlikely(match)) {
+				if (debug_locks_off_graph_unlock()) {
+					/*
+					 * We all just reset everything, how did it match?
+					 */
+					WARN_ON(1);
+				}
+				goto out_restore;
+			}
+		}
+	}
+	if (locked)
+		graph_unlock();
+
+out_restore:
+	raw_local_irq_restore(flags);
+}
+
+void lockdep_init(void)
+{
+	int i;
+
+	/*
+	 * Some architectures have their own start_kernel()
+	 * code which calls lockdep_init(), while we also
+	 * call lockdep_init() from the start_kernel() itself,
+	 * and we want to initialize the hashes only once:
+	 */
+	if (lockdep_initialized)
+		return;
+
+	for (i = 0; i < CLASSHASH_SIZE; i++)
+		INIT_LIST_HEAD(classhash_table + i);
+
+	for (i = 0; i < CHAINHASH_SIZE; i++)
+		INIT_LIST_HEAD(chainhash_table + i);
+
+	lockdep_initialized = 1;
+}
+
+void __init lockdep_info(void)
+{
+	printk("Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar\n");
+
+	printk("... MAX_LOCKDEP_SUBCLASSES:  %lu\n", MAX_LOCKDEP_SUBCLASSES);
+	printk("... MAX_LOCK_DEPTH:          %lu\n", MAX_LOCK_DEPTH);
+	printk("... MAX_LOCKDEP_KEYS:        %lu\n", MAX_LOCKDEP_KEYS);
+	printk("... CLASSHASH_SIZE:          %lu\n", CLASSHASH_SIZE);
+	printk("... MAX_LOCKDEP_ENTRIES:     %lu\n", MAX_LOCKDEP_ENTRIES);
+	printk("... MAX_LOCKDEP_CHAINS:      %lu\n", MAX_LOCKDEP_CHAINS);
+	printk("... CHAINHASH_SIZE:          %lu\n", CHAINHASH_SIZE);
+
+	printk(" memory used by lock dependency info: %lu kB\n",
+		(sizeof(struct lock_class) * MAX_LOCKDEP_KEYS +
+		sizeof(struct list_head) * CLASSHASH_SIZE +
+		sizeof(struct lock_list) * MAX_LOCKDEP_ENTRIES +
+		sizeof(struct lock_chain) * MAX_LOCKDEP_CHAINS +
+		sizeof(struct list_head) * CHAINHASH_SIZE
+#ifdef CONFIG_PROVE_LOCKING
+		+ sizeof(struct circular_queue)
+#endif
+		) / 1024
+		);
+
+	printk(" per task-struct memory footprint: %lu bytes\n",
+		sizeof(struct held_lock) * MAX_LOCK_DEPTH);
+
+#ifdef CONFIG_DEBUG_LOCKDEP
+	if (lockdep_init_error) {
+		printk("WARNING: lockdep init error! lock-%s was acquired"
+			"before lockdep_init\n", lock_init_error);
+		printk("Call stack leading to lockdep invocation was:\n");
+		print_stack_trace(&lockdep_init_trace, 0);
+	}
+#endif
+}
+
+static void
+print_freed_lock_bug(struct task_struct *curr, const void *mem_from,
+		     const void *mem_to, struct held_lock *hlock)
+{
+	if (!debug_locks_off())
+		return;
+	if (debug_locks_silent)
+		return;
+
+	printk("\n");
+	printk("=========================\n");
+	printk("[ BUG: held lock freed! ]\n");
+	print_kernel_ident();
+	printk("-------------------------\n");
+	printk("%s/%d is freeing memory %p-%p, with a lock still held there!\n",
+		curr->comm, task_pid_nr(curr), mem_from, mem_to-1);
+	print_lock(hlock);
+	lockdep_print_held_locks(curr);
+
+	printk("\nstack backtrace:\n");
+	dump_stack();
+}
+
+static inline int not_in_range(const void* mem_from, unsigned long mem_len,
+				const void* lock_from, unsigned long lock_len)
+{
+	return lock_from + lock_len <= mem_from ||
+		mem_from + mem_len <= lock_from;
+}
+
+/*
+ * Called when kernel memory is freed (or unmapped), or if a lock
+ * is destroyed or reinitialized - this code checks whether there is
+ * any held lock in the memory range of <from> to <to>:
+ */
+void debug_check_no_locks_freed(const void *mem_from, unsigned long mem_len)
+{
+	struct task_struct *curr = current;
+	struct held_lock *hlock;
+	unsigned long flags;
+	int i;
+
+	if (unlikely(!debug_locks))
+		return;
+
+	local_irq_save(flags);
+	for (i = 0; i < curr->lockdep_depth; i++) {
+		hlock = curr->held_locks + i;
+
+		if (not_in_range(mem_from, mem_len, hlock->instance,
+					sizeof(*hlock->instance)))
+			continue;
+
+		print_freed_lock_bug(curr, mem_from, mem_from + mem_len, hlock);
+		break;
+	}
+	local_irq_restore(flags);
+}
+EXPORT_SYMBOL_GPL(debug_check_no_locks_freed);
+
+static void print_held_locks_bug(void)
+{
+	if (!debug_locks_off())
+		return;
+	if (debug_locks_silent)
+		return;
+
+	printk("\n");
+	printk("=====================================\n");
+	printk("[ BUG: %s/%d still has locks held! ]\n",
+	       current->comm, task_pid_nr(current));
+	print_kernel_ident();
+	printk("-------------------------------------\n");
+	lockdep_print_held_locks(current);
+	printk("\nstack backtrace:\n");
+	dump_stack();
+}
+
+void debug_check_no_locks_held(void)
+{
+	if (unlikely(current->lockdep_depth > 0))
+		print_held_locks_bug();
+}
+EXPORT_SYMBOL_GPL(debug_check_no_locks_held);
+
+void debug_show_all_locks(void)
+{
+	struct task_struct *g, *p;
+	int count = 10;
+	int unlock = 1;
+
+	if (unlikely(!debug_locks)) {
+		printk("INFO: lockdep is turned off.\n");
+		return;
+	}
+	printk("\nShowing all locks held in the system:\n");
+
+	/*
+	 * Here we try to get the tasklist_lock as hard as possible,
+	 * if not successful after 2 seconds we ignore it (but keep
+	 * trying). This is to enable a debug printout even if a
+	 * tasklist_lock-holding task deadlocks or crashes.
+	 */
+retry:
+	if (!read_trylock(&tasklist_lock)) {
+		if (count == 10)
+			printk("hm, tasklist_lock locked, retrying... ");
+		if (count) {
+			count--;
+			printk(" #%d", 10-count);
+			mdelay(200);
+			goto retry;
+		}
+		printk(" ignoring it.\n");
+		unlock = 0;
+	} else {
+		if (count != 10)
+			printk(KERN_CONT " locked it.\n");
+	}
+
+	do_each_thread(g, p) {
+		/*
+		 * It's not reliable to print a task's held locks
+		 * if it's not sleeping (or if it's not the current
+		 * task):
+		 */
+		if (p->state == TASK_RUNNING && p != current)
+			continue;
+		if (p->lockdep_depth)
+			lockdep_print_held_locks(p);
+		if (!unlock)
+			if (read_trylock(&tasklist_lock))
+				unlock = 1;
+	} while_each_thread(g, p);
+
+	printk("\n");
+	printk("=============================================\n\n");
+
+	if (unlock)
+		read_unlock(&tasklist_lock);
+}
+EXPORT_SYMBOL_GPL(debug_show_all_locks);
+
+/*
+ * Careful: only use this function if you are sure that
+ * the task cannot run in parallel!
+ */
+void debug_show_held_locks(struct task_struct *task)
+{
+	if (unlikely(!debug_locks)) {
+		printk("INFO: lockdep is turned off.\n");
+		return;
+	}
+	lockdep_print_held_locks(task);
+}
+EXPORT_SYMBOL_GPL(debug_show_held_locks);
+
+void lockdep_sys_exit(void)
+{
+	struct task_struct *curr = current;
+
+	if (unlikely(curr->lockdep_depth)) {
+		if (!debug_locks_off())
+			return;
+		printk("\n");
+		printk("================================================\n");
+		printk("[ BUG: lock held when returning to user space! ]\n");
+		print_kernel_ident();
+		printk("------------------------------------------------\n");
+		printk("%s/%d is leaving the kernel with locks still held!\n",
+				curr->comm, curr->pid);
+		lockdep_print_held_locks(curr);
+	}
+}
+
+void lockdep_rcu_suspicious(const char *file, const int line, const char *s)
+{
+	struct task_struct *curr = current;
+
+#ifndef CONFIG_PROVE_RCU_REPEATEDLY
+	if (!debug_locks_off())
+		return;
+#endif /* #ifdef CONFIG_PROVE_RCU_REPEATEDLY */
+	/* Note: the following can be executed concurrently, so be careful. */
+	printk("\n");
+	printk("===============================\n");
+	printk("[ INFO: suspicious RCU usage. ]\n");
+	print_kernel_ident();
+	printk("-------------------------------\n");
+	printk("%s:%d %s!\n", file, line, s);
+	printk("\nother info that might help us debug this:\n\n");
+	printk("\n%srcu_scheduler_active = %d, debug_locks = %d\n",
+	       !rcu_lockdep_current_cpu_online()
+			? "RCU used illegally from offline CPU!\n"
+			: !rcu_is_watching()
+				? "RCU used illegally from idle CPU!\n"
+				: "",
+	       rcu_scheduler_active, debug_locks);
+
+	/*
+	 * If a CPU is in the RCU-free window in idle (ie: in the section
+	 * between rcu_idle_enter() and rcu_idle_exit(), then RCU
+	 * considers that CPU to be in an "extended quiescent state",
+	 * which means that RCU will be completely ignoring that CPU.
+	 * Therefore, rcu_read_lock() and friends have absolutely no
+	 * effect on a CPU running in that state. In other words, even if
+	 * such an RCU-idle CPU has called rcu_read_lock(), RCU might well
+	 * delete data structures out from under it.  RCU really has no
+	 * choice here: we need to keep an RCU-free window in idle where
+	 * the CPU may possibly enter into low power mode. This way we can
+	 * notice an extended quiescent state to other CPUs that started a grace
+	 * period. Otherwise we would delay any grace period as long as we run
+	 * in the idle task.
+	 *
+	 * So complain bitterly if someone does call rcu_read_lock(),
+	 * rcu_read_lock_bh() and so on from extended quiescent states.
+	 */
+	if (!rcu_is_watching())
+		printk("RCU used illegally from extended quiescent state!\n");
+
+	lockdep_print_held_locks(curr);
+	printk("\nstack backtrace:\n");
+	dump_stack();
+}
+EXPORT_SYMBOL_GPL(lockdep_rcu_suspicious);
diff --git a/kernel/locking/lockdep_internals.h b/kernel/locking/lockdep_internals.h
new file mode 100644
index 000000000000..4f560cfedc8f
--- /dev/null
+++ b/kernel/locking/lockdep_internals.h
@@ -0,0 +1,170 @@
+/*
+ * kernel/lockdep_internals.h
+ *
+ * Runtime locking correctness validator
+ *
+ * lockdep subsystem internal functions and variables.
+ */
+
+/*
+ * Lock-class usage-state bits:
+ */
+enum lock_usage_bit {
+#define LOCKDEP_STATE(__STATE)		\
+	LOCK_USED_IN_##__STATE,		\
+	LOCK_USED_IN_##__STATE##_READ,	\
+	LOCK_ENABLED_##__STATE,		\
+	LOCK_ENABLED_##__STATE##_READ,
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
+	LOCK_USED,
+	LOCK_USAGE_STATES
+};
+
+/*
+ * Usage-state bitmasks:
+ */
+#define __LOCKF(__STATE)	LOCKF_##__STATE = (1 << LOCK_##__STATE),
+
+enum {
+#define LOCKDEP_STATE(__STATE)						\
+	__LOCKF(USED_IN_##__STATE)					\
+	__LOCKF(USED_IN_##__STATE##_READ)				\
+	__LOCKF(ENABLED_##__STATE)					\
+	__LOCKF(ENABLED_##__STATE##_READ)
+#include "lockdep_states.h"
+#undef LOCKDEP_STATE
+	__LOCKF(USED)
+};
+
+#define LOCKF_ENABLED_IRQ (LOCKF_ENABLED_HARDIRQ | LOCKF_ENABLED_SOFTIRQ)
+#define LOCKF_USED_IN_IRQ (LOCKF_USED_IN_HARDIRQ | LOCKF_USED_IN_SOFTIRQ)
+
+#define LOCKF_ENABLED_IRQ_READ \
+		(LOCKF_ENABLED_HARDIRQ_READ | LOCKF_ENABLED_SOFTIRQ_READ)
+#define LOCKF_USED_IN_IRQ_READ \
+		(LOCKF_USED_IN_HARDIRQ_READ | LOCKF_USED_IN_SOFTIRQ_READ)
+
+/*
+ * MAX_LOCKDEP_ENTRIES is the maximum number of lock dependencies
+ * we track.
+ *
+ * We use the per-lock dependency maps in two ways: we grow it by adding
+ * every to-be-taken lock to all currently held lock's own dependency
+ * table (if it's not there yet), and we check it for lock order
+ * conflicts and deadlocks.
+ */
+#define MAX_LOCKDEP_ENTRIES	16384UL
+
+#define MAX_LOCKDEP_CHAINS_BITS	15
+#define MAX_LOCKDEP_CHAINS	(1UL << MAX_LOCKDEP_CHAINS_BITS)
+
+#define MAX_LOCKDEP_CHAIN_HLOCKS (MAX_LOCKDEP_CHAINS*5)
+
+/*
+ * Stack-trace: tightly packed array of stack backtrace
+ * addresses. Protected by the hash_lock.
+ */
+#define MAX_STACK_TRACE_ENTRIES	262144UL
+
+extern struct list_head all_lock_classes;
+extern struct lock_chain lock_chains[];
+
+#define LOCK_USAGE_CHARS (1+LOCK_USAGE_STATES/2)
+
+extern void get_usage_chars(struct lock_class *class,
+			    char usage[LOCK_USAGE_CHARS]);
+
+extern const char * __get_key_name(struct lockdep_subclass_key *key, char *str);
+
+struct lock_class *lock_chain_get_class(struct lock_chain *chain, int i);
+
+extern unsigned long nr_lock_classes;
+extern unsigned long nr_list_entries;
+extern unsigned long nr_lock_chains;
+extern int nr_chain_hlocks;
+extern unsigned long nr_stack_trace_entries;
+
+extern unsigned int nr_hardirq_chains;
+extern unsigned int nr_softirq_chains;
+extern unsigned int nr_process_chains;
+extern unsigned int max_lockdep_depth;
+extern unsigned int max_recursion_depth;
+
+extern unsigned int max_bfs_queue_depth;
+
+#ifdef CONFIG_PROVE_LOCKING
+extern unsigned long lockdep_count_forward_deps(struct lock_class *);
+extern unsigned long lockdep_count_backward_deps(struct lock_class *);
+#else
+static inline unsigned long
+lockdep_count_forward_deps(struct lock_class *class)
+{
+	return 0;
+}
+static inline unsigned long
+lockdep_count_backward_deps(struct lock_class *class)
+{
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_DEBUG_LOCKDEP
+
+#include <asm/local.h>
+/*
+ * Various lockdep statistics.
+ * We want them per cpu as they are often accessed in fast path
+ * and we want to avoid too much cache bouncing.
+ */
+struct lockdep_stats {
+	int	chain_lookup_hits;
+	int	chain_lookup_misses;
+	int	hardirqs_on_events;
+	int	hardirqs_off_events;
+	int	redundant_hardirqs_on;
+	int	redundant_hardirqs_off;
+	int	softirqs_on_events;
+	int	softirqs_off_events;
+	int	redundant_softirqs_on;
+	int	redundant_softirqs_off;
+	int	nr_unused_locks;
+	int	nr_cyclic_checks;
+	int	nr_cyclic_check_recursions;
+	int	nr_find_usage_forwards_checks;
+	int	nr_find_usage_forwards_recursions;
+	int	nr_find_usage_backwards_checks;
+	int	nr_find_usage_backwards_recursions;
+};
+
+DECLARE_PER_CPU(struct lockdep_stats, lockdep_stats);
+
+#define __debug_atomic_inc(ptr)					\
+	this_cpu_inc(lockdep_stats.ptr);
+
+#define debug_atomic_inc(ptr)			{		\
+	WARN_ON_ONCE(!irqs_disabled());				\
+	__this_cpu_inc(lockdep_stats.ptr);			\
+}
+
+#define debug_atomic_dec(ptr)			{		\
+	WARN_ON_ONCE(!irqs_disabled());				\
+	__this_cpu_dec(lockdep_stats.ptr);			\
+}
+
+#define debug_atomic_read(ptr)		({				\
+	struct lockdep_stats *__cpu_lockdep_stats;			\
+	unsigned long long __total = 0;					\
+	int __cpu;							\
+	for_each_possible_cpu(__cpu) {					\
+		__cpu_lockdep_stats = &per_cpu(lockdep_stats, __cpu);	\
+		__total += __cpu_lockdep_stats->ptr;			\
+	}								\
+	__total;							\
+})
+#else
+# define __debug_atomic_inc(ptr)	do { } while (0)
+# define debug_atomic_inc(ptr)		do { } while (0)
+# define debug_atomic_dec(ptr)		do { } while (0)
+# define debug_atomic_read(ptr)		0
+#endif
diff --git a/kernel/locking/lockdep_proc.c b/kernel/locking/lockdep_proc.c
new file mode 100644
index 000000000000..09220656d888
--- /dev/null
+++ b/kernel/locking/lockdep_proc.c
@@ -0,0 +1,683 @@
+/*
+ * kernel/lockdep_proc.c
+ *
+ * Runtime locking correctness validator
+ *
+ * Started by Ingo Molnar:
+ *
+ *  Copyright (C) 2006,2007 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
+ *  Copyright (C) 2007 Red Hat, Inc., Peter Zijlstra <pzijlstr@redhat.com>
+ *
+ * Code for /proc/lockdep and /proc/lockdep_stats:
+ *
+ */
+#include <linux/export.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/kallsyms.h>
+#include <linux/debug_locks.h>
+#include <linux/vmalloc.h>
+#include <linux/sort.h>
+#include <asm/uaccess.h>
+#include <asm/div64.h>
+
+#include "lockdep_internals.h"
+
+static void *l_next(struct seq_file *m, void *v, loff_t *pos)
+{
+	return seq_list_next(v, &all_lock_classes, pos);
+}
+
+static void *l_start(struct seq_file *m, loff_t *pos)
+{
+	return seq_list_start_head(&all_lock_classes, *pos);
+}
+
+static void l_stop(struct seq_file *m, void *v)
+{
+}
+
+static void print_name(struct seq_file *m, struct lock_class *class)
+{
+	char str[KSYM_NAME_LEN];
+	const char *name = class->name;
+
+	if (!name) {
+		name = __get_key_name(class->key, str);
+		seq_printf(m, "%s", name);
+	} else{
+		seq_printf(m, "%s", name);
+		if (class->name_version > 1)
+			seq_printf(m, "#%d", class->name_version);
+		if (class->subclass)
+			seq_printf(m, "/%d", class->subclass);
+	}
+}
+
+static int l_show(struct seq_file *m, void *v)
+{
+	struct lock_class *class = list_entry(v, struct lock_class, lock_entry);
+	struct lock_list *entry;
+	char usage[LOCK_USAGE_CHARS];
+
+	if (v == &all_lock_classes) {
+		seq_printf(m, "all lock classes:\n");
+		return 0;
+	}
+
+	seq_printf(m, "%p", class->key);
+#ifdef CONFIG_DEBUG_LOCKDEP
+	seq_printf(m, " OPS:%8ld", class->ops);
+#endif
+#ifdef CONFIG_PROVE_LOCKING
+	seq_printf(m, " FD:%5ld", lockdep_count_forward_deps(class));
+	seq_printf(m, " BD:%5ld", lockdep_count_backward_deps(class));
+#endif
+
+	get_usage_chars(class, usage);
+	seq_printf(m, " %s", usage);
+
+	seq_printf(m, ": ");
+	print_name(m, class);
+	seq_puts(m, "\n");
+
+	list_for_each_entry(entry, &class->locks_after, entry) {
+		if (entry->distance == 1) {
+			seq_printf(m, " -> [%p] ", entry->class->key);
+			print_name(m, entry->class);
+			seq_puts(m, "\n");
+		}
+	}
+	seq_puts(m, "\n");
+
+	return 0;
+}
+
+static const struct seq_operations lockdep_ops = {
+	.start	= l_start,
+	.next	= l_next,
+	.stop	= l_stop,
+	.show	= l_show,
+};
+
+static int lockdep_open(struct inode *inode, struct file *file)
+{
+	return seq_open(file, &lockdep_ops);
+}
+
+static const struct file_operations proc_lockdep_operations = {
+	.open		= lockdep_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
+
+#ifdef CONFIG_PROVE_LOCKING
+static void *lc_start(struct seq_file *m, loff_t *pos)
+{
+	if (*pos == 0)
+		return SEQ_START_TOKEN;
+
+	if (*pos - 1 < nr_lock_chains)
+		return lock_chains + (*pos - 1);
+
+	return NULL;
+}
+
+static void *lc_next(struct seq_file *m, void *v, loff_t *pos)
+{
+	(*pos)++;
+	return lc_start(m, pos);
+}
+
+static void lc_stop(struct seq_file *m, void *v)
+{
+}
+
+static int lc_show(struct seq_file *m, void *v)
+{
+	struct lock_chain *chain = v;
+	struct lock_class *class;
+	int i;
+
+	if (v == SEQ_START_TOKEN) {
+		seq_printf(m, "all lock chains:\n");
+		return 0;
+	}
+
+	seq_printf(m, "irq_context: %d\n", chain->irq_context);
+
+	for (i = 0; i < chain->depth; i++) {
+		class = lock_chain_get_class(chain, i);
+		if (!class->key)
+			continue;
+
+		seq_printf(m, "[%p] ", class->key);
+		print_name(m, class);
+		seq_puts(m, "\n");
+	}
+	seq_puts(m, "\n");
+
+	return 0;
+}
+
+static const struct seq_operations lockdep_chains_ops = {
+	.start	= lc_start,
+	.next	= lc_next,
+	.stop	= lc_stop,
+	.show	= lc_show,
+};
+
+static int lockdep_chains_open(struct inode *inode, struct file *file)
+{
+	return seq_open(file, &lockdep_chains_ops);
+}
+
+static const struct file_operations proc_lockdep_chains_operations = {
+	.open		= lockdep_chains_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
+#endif /* CONFIG_PROVE_LOCKING */
+
+static void lockdep_stats_debug_show(struct seq_file *m)
+{
+#ifdef CONFIG_DEBUG_LOCKDEP
+	unsigned long long hi1 = debug_atomic_read(hardirqs_on_events),
+			   hi2 = debug_atomic_read(hardirqs_off_events),
+			   hr1 = debug_atomic_read(redundant_hardirqs_on),
+			   hr2 = debug_atomic_read(redundant_hardirqs_off),
+			   si1 = debug_atomic_read(softirqs_on_events),
+			   si2 = debug_atomic_read(softirqs_off_events),
+			   sr1 = debug_atomic_read(redundant_softirqs_on),
+			   sr2 = debug_atomic_read(redundant_softirqs_off);
+
+	seq_printf(m, " chain lookup misses:           %11llu\n",
+		debug_atomic_read(chain_lookup_misses));
+	seq_printf(m, " chain lookup hits:             %11llu\n",
+		debug_atomic_read(chain_lookup_hits));
+	seq_printf(m, " cyclic checks:                 %11llu\n",
+		debug_atomic_read(nr_cyclic_checks));
+	seq_printf(m, " find-mask forwards checks:     %11llu\n",
+		debug_atomic_read(nr_find_usage_forwards_checks));
+	seq_printf(m, " find-mask backwards checks:    %11llu\n",
+		debug_atomic_read(nr_find_usage_backwards_checks));
+
+	seq_printf(m, " hardirq on events:             %11llu\n", hi1);
+	seq_printf(m, " hardirq off events:            %11llu\n", hi2);
+	seq_printf(m, " redundant hardirq ons:         %11llu\n", hr1);
+	seq_printf(m, " redundant hardirq offs:        %11llu\n", hr2);
+	seq_printf(m, " softirq on events:             %11llu\n", si1);
+	seq_printf(m, " softirq off events:            %11llu\n", si2);
+	seq_printf(m, " redundant softirq ons:         %11llu\n", sr1);
+	seq_printf(m, " redundant softirq offs:        %11llu\n", sr2);
+#endif
+}
+
+static int lockdep_stats_show(struct seq_file *m, void *v)
+{
+	struct lock_class *class;
+	unsigned long nr_unused = 0, nr_uncategorized = 0,
+		      nr_irq_safe = 0, nr_irq_unsafe = 0,
+		      nr_softirq_safe = 0, nr_softirq_unsafe = 0,
+		      nr_hardirq_safe = 0, nr_hardirq_unsafe = 0,
+		      nr_irq_read_safe = 0, nr_irq_read_unsafe = 0,
+		      nr_softirq_read_safe = 0, nr_softirq_read_unsafe = 0,
+		      nr_hardirq_read_safe = 0, nr_hardirq_read_unsafe = 0,
+		      sum_forward_deps = 0;
+
+	list_for_each_entry(class, &all_lock_classes, lock_entry) {
+
+		if (class->usage_mask == 0)
+			nr_unused++;
+		if (class->usage_mask == LOCKF_USED)
+			nr_uncategorized++;
+		if (class->usage_mask & LOCKF_USED_IN_IRQ)
+			nr_irq_safe++;
+		if (class->usage_mask & LOCKF_ENABLED_IRQ)
+			nr_irq_unsafe++;
+		if (class->usage_mask & LOCKF_USED_IN_SOFTIRQ)
+			nr_softirq_safe++;
+		if (class->usage_mask & LOCKF_ENABLED_SOFTIRQ)
+			nr_softirq_unsafe++;
+		if (class->usage_mask & LOCKF_USED_IN_HARDIRQ)
+			nr_hardirq_safe++;
+		if (class->usage_mask & LOCKF_ENABLED_HARDIRQ)
+			nr_hardirq_unsafe++;
+		if (class->usage_mask & LOCKF_USED_IN_IRQ_READ)
+			nr_irq_read_safe++;
+		if (class->usage_mask & LOCKF_ENABLED_IRQ_READ)
+			nr_irq_read_unsafe++;
+		if (class->usage_mask & LOCKF_USED_IN_SOFTIRQ_READ)
+			nr_softirq_read_safe++;
+		if (class->usage_mask & LOCKF_ENABLED_SOFTIRQ_READ)
+			nr_softirq_read_unsafe++;
+		if (class->usage_mask & LOCKF_USED_IN_HARDIRQ_READ)
+			nr_hardirq_read_safe++;
+		if (class->usage_mask & LOCKF_ENABLED_HARDIRQ_READ)
+			nr_hardirq_read_unsafe++;
+
+#ifdef CONFIG_PROVE_LOCKING
+		sum_forward_deps += lockdep_count_forward_deps(class);
+#endif
+	}
+#ifdef CONFIG_DEBUG_LOCKDEP
+	DEBUG_LOCKS_WARN_ON(debug_atomic_read(nr_unused_locks) != nr_unused);
+#endif
+	seq_printf(m, " lock-classes:                  %11lu [max: %lu]\n",
+			nr_lock_classes, MAX_LOCKDEP_KEYS);
+	seq_printf(m, " direct dependencies:           %11lu [max: %lu]\n",
+			nr_list_entries, MAX_LOCKDEP_ENTRIES);
+	seq_printf(m, " indirect dependencies:         %11lu\n",
+			sum_forward_deps);
+
+	/*
+	 * Total number of dependencies:
+	 *
+	 * All irq-safe locks may nest inside irq-unsafe locks,
+	 * plus all the other known dependencies:
+	 */
+	seq_printf(m, " all direct dependencies:       %11lu\n",
+			nr_irq_unsafe * nr_irq_safe +
+			nr_hardirq_unsafe * nr_hardirq_safe +
+			nr_list_entries);
+
+#ifdef CONFIG_PROVE_LOCKING
+	seq_printf(m, " dependency chains:             %11lu [max: %lu]\n",
+			nr_lock_chains, MAX_LOCKDEP_CHAINS);
+	seq_printf(m, " dependency chain hlocks:       %11d [max: %lu]\n",
+			nr_chain_hlocks, MAX_LOCKDEP_CHAIN_HLOCKS);
+#endif
+
+#ifdef CONFIG_TRACE_IRQFLAGS
+	seq_printf(m, " in-hardirq chains:             %11u\n",
+			nr_hardirq_chains);
+	seq_printf(m, " in-softirq chains:             %11u\n",
+			nr_softirq_chains);
+#endif
+	seq_printf(m, " in-process chains:             %11u\n",
+			nr_process_chains);
+	seq_printf(m, " stack-trace entries:           %11lu [max: %lu]\n",
+			nr_stack_trace_entries, MAX_STACK_TRACE_ENTRIES);
+	seq_printf(m, " combined max dependencies:     %11u\n",
+			(nr_hardirq_chains + 1) *
+			(nr_softirq_chains + 1) *
+			(nr_process_chains + 1)
+	);
+	seq_printf(m, " hardirq-safe locks:            %11lu\n",
+			nr_hardirq_safe);
+	seq_printf(m, " hardirq-unsafe locks:          %11lu\n",
+			nr_hardirq_unsafe);
+	seq_printf(m, " softirq-safe locks:            %11lu\n",
+			nr_softirq_safe);
+	seq_printf(m, " softirq-unsafe locks:          %11lu\n",
+			nr_softirq_unsafe);
+	seq_printf(m, " irq-safe locks:                %11lu\n",
+			nr_irq_safe);
+	seq_printf(m, " irq-unsafe locks:              %11lu\n",
+			nr_irq_unsafe);
+
+	seq_printf(m, " hardirq-read-safe locks:       %11lu\n",
+			nr_hardirq_read_safe);
+	seq_printf(m, " hardirq-read-unsafe locks:     %11lu\n",
+			nr_hardirq_read_unsafe);
+	seq_printf(m, " softirq-read-safe locks:       %11lu\n",
+			nr_softirq_read_safe);
+	seq_printf(m, " softirq-read-unsafe locks:     %11lu\n",
+			nr_softirq_read_unsafe);
+	seq_printf(m, " irq-read-safe locks:           %11lu\n",
+			nr_irq_read_safe);
+	seq_printf(m, " irq-read-unsafe locks:         %11lu\n",
+			nr_irq_read_unsafe);
+
+	seq_printf(m, " uncategorized locks:           %11lu\n",
+			nr_uncategorized);
+	seq_printf(m, " unused locks:                  %11lu\n",
+			nr_unused);
+	seq_printf(m, " max locking depth:             %11u\n",
+			max_lockdep_depth);
+#ifdef CONFIG_PROVE_LOCKING
+	seq_printf(m, " max bfs queue depth:           %11u\n",
+			max_bfs_queue_depth);
+#endif
+	lockdep_stats_debug_show(m);
+	seq_printf(m, " debug_locks:                   %11u\n",
+			debug_locks);
+
+	return 0;
+}
+
+static int lockdep_stats_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, lockdep_stats_show, NULL);
+}
+
+static const struct file_operations proc_lockdep_stats_operations = {
+	.open		= lockdep_stats_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+#ifdef CONFIG_LOCK_STAT
+
+struct lock_stat_data {
+	struct lock_class *class;
+	struct lock_class_stats stats;
+};
+
+struct lock_stat_seq {
+	struct lock_stat_data *iter_end;
+	struct lock_stat_data stats[MAX_LOCKDEP_KEYS];
+};
+
+/*
+ * sort on absolute number of contentions
+ */
+static int lock_stat_cmp(const void *l, const void *r)
+{
+	const struct lock_stat_data *dl = l, *dr = r;
+	unsigned long nl, nr;
+
+	nl = dl->stats.read_waittime.nr + dl->stats.write_waittime.nr;
+	nr = dr->stats.read_waittime.nr + dr->stats.write_waittime.nr;
+
+	return nr - nl;
+}
+
+static void seq_line(struct seq_file *m, char c, int offset, int length)
+{
+	int i;
+
+	for (i = 0; i < offset; i++)
+		seq_puts(m, " ");
+	for (i = 0; i < length; i++)
+		seq_printf(m, "%c", c);
+	seq_puts(m, "\n");
+}
+
+static void snprint_time(char *buf, size_t bufsiz, s64 nr)
+{
+	s64 div;
+	s32 rem;
+
+	nr += 5; /* for display rounding */
+	div = div_s64_rem(nr, 1000, &rem);
+	snprintf(buf, bufsiz, "%lld.%02d", (long long)div, (int)rem/10);
+}
+
+static void seq_time(struct seq_file *m, s64 time)
+{
+	char num[15];
+
+	snprint_time(num, sizeof(num), time);
+	seq_printf(m, " %14s", num);
+}
+
+static void seq_lock_time(struct seq_file *m, struct lock_time *lt)
+{
+	seq_printf(m, "%14lu", lt->nr);
+	seq_time(m, lt->min);
+	seq_time(m, lt->max);
+	seq_time(m, lt->total);
+	seq_time(m, lt->nr ? do_div(lt->total, lt->nr) : 0);
+}
+
+static void seq_stats(struct seq_file *m, struct lock_stat_data *data)
+{
+	char name[39];
+	struct lock_class *class;
+	struct lock_class_stats *stats;
+	int i, namelen;
+
+	class = data->class;
+	stats = &data->stats;
+
+	namelen = 38;
+	if (class->name_version > 1)
+		namelen -= 2; /* XXX truncates versions > 9 */
+	if (class->subclass)
+		namelen -= 2;
+
+	if (!class->name) {
+		char str[KSYM_NAME_LEN];
+		const char *key_name;
+
+		key_name = __get_key_name(class->key, str);
+		snprintf(name, namelen, "%s", key_name);
+	} else {
+		snprintf(name, namelen, "%s", class->name);
+	}
+	namelen = strlen(name);
+	if (class->name_version > 1) {
+		snprintf(name+namelen, 3, "#%d", class->name_version);
+		namelen += 2;
+	}
+	if (class->subclass) {
+		snprintf(name+namelen, 3, "/%d", class->subclass);
+		namelen += 2;
+	}
+
+	if (stats->write_holdtime.nr) {
+		if (stats->read_holdtime.nr)
+			seq_printf(m, "%38s-W:", name);
+		else
+			seq_printf(m, "%40s:", name);
+
+		seq_printf(m, "%14lu ", stats->bounces[bounce_contended_write]);
+		seq_lock_time(m, &stats->write_waittime);
+		seq_printf(m, " %14lu ", stats->bounces[bounce_acquired_write]);
+		seq_lock_time(m, &stats->write_holdtime);
+		seq_puts(m, "\n");
+	}
+
+	if (stats->read_holdtime.nr) {
+		seq_printf(m, "%38s-R:", name);
+		seq_printf(m, "%14lu ", stats->bounces[bounce_contended_read]);
+		seq_lock_time(m, &stats->read_waittime);
+		seq_printf(m, " %14lu ", stats->bounces[bounce_acquired_read]);
+		seq_lock_time(m, &stats->read_holdtime);
+		seq_puts(m, "\n");
+	}
+
+	if (stats->read_waittime.nr + stats->write_waittime.nr == 0)
+		return;
+
+	if (stats->read_holdtime.nr)
+		namelen += 2;
+
+	for (i = 0; i < LOCKSTAT_POINTS; i++) {
+		char ip[32];
+
+		if (class->contention_point[i] == 0)
+			break;
+
+		if (!i)
+			seq_line(m, '-', 40-namelen, namelen);
+
+		snprintf(ip, sizeof(ip), "[<%p>]",
+				(void *)class->contention_point[i]);
+		seq_printf(m, "%40s %14lu %29s %pS\n",
+			   name, stats->contention_point[i],
+			   ip, (void *)class->contention_point[i]);
+	}
+	for (i = 0; i < LOCKSTAT_POINTS; i++) {
+		char ip[32];
+
+		if (class->contending_point[i] == 0)
+			break;
+
+		if (!i)
+			seq_line(m, '-', 40-namelen, namelen);
+
+		snprintf(ip, sizeof(ip), "[<%p>]",
+				(void *)class->contending_point[i]);
+		seq_printf(m, "%40s %14lu %29s %pS\n",
+			   name, stats->contending_point[i],
+			   ip, (void *)class->contending_point[i]);
+	}
+	if (i) {
+		seq_puts(m, "\n");
+		seq_line(m, '.', 0, 40 + 1 + 12 * (14 + 1));
+		seq_puts(m, "\n");
+	}
+}
+
+static void seq_header(struct seq_file *m)
+{
+	seq_puts(m, "lock_stat version 0.4\n");
+
+	if (unlikely(!debug_locks))
+		seq_printf(m, "*WARNING* lock debugging disabled!! - possibly due to a lockdep warning\n");
+
+	seq_line(m, '-', 0, 40 + 1 + 12 * (14 + 1));
+	seq_printf(m, "%40s %14s %14s %14s %14s %14s %14s %14s %14s %14s %14s "
+			"%14s %14s\n",
+			"class name",
+			"con-bounces",
+			"contentions",
+			"waittime-min",
+			"waittime-max",
+			"waittime-total",
+			"waittime-avg",
+			"acq-bounces",
+			"acquisitions",
+			"holdtime-min",
+			"holdtime-max",
+			"holdtime-total",
+			"holdtime-avg");
+	seq_line(m, '-', 0, 40 + 1 + 12 * (14 + 1));
+	seq_printf(m, "\n");
+}
+
+static void *ls_start(struct seq_file *m, loff_t *pos)
+{
+	struct lock_stat_seq *data = m->private;
+	struct lock_stat_data *iter;
+
+	if (*pos == 0)
+		return SEQ_START_TOKEN;
+
+	iter = data->stats + (*pos - 1);
+	if (iter >= data->iter_end)
+		iter = NULL;
+
+	return iter;
+}
+
+static void *ls_next(struct seq_file *m, void *v, loff_t *pos)
+{
+	(*pos)++;
+	return ls_start(m, pos);
+}
+
+static void ls_stop(struct seq_file *m, void *v)
+{
+}
+
+static int ls_show(struct seq_file *m, void *v)
+{
+	if (v == SEQ_START_TOKEN)
+		seq_header(m);
+	else
+		seq_stats(m, v);
+
+	return 0;
+}
+
+static const struct seq_operations lockstat_ops = {
+	.start	= ls_start,
+	.next	= ls_next,
+	.stop	= ls_stop,
+	.show	= ls_show,
+};
+
+static int lock_stat_open(struct inode *inode, struct file *file)
+{
+	int res;
+	struct lock_class *class;
+	struct lock_stat_seq *data = vmalloc(sizeof(struct lock_stat_seq));
+
+	if (!data)
+		return -ENOMEM;
+
+	res = seq_open(file, &lockstat_ops);
+	if (!res) {
+		struct lock_stat_data *iter = data->stats;
+		struct seq_file *m = file->private_data;
+
+		list_for_each_entry(class, &all_lock_classes, lock_entry) {
+			iter->class = class;
+			iter->stats = lock_stats(class);
+			iter++;
+		}
+		data->iter_end = iter;
+
+		sort(data->stats, data->iter_end - data->stats,
+				sizeof(struct lock_stat_data),
+				lock_stat_cmp, NULL);
+
+		m->private = data;
+	} else
+		vfree(data);
+
+	return res;
+}
+
+static ssize_t lock_stat_write(struct file *file, const char __user *buf,
+			       size_t count, loff_t *ppos)
+{
+	struct lock_class *class;
+	char c;
+
+	if (count) {
+		if (get_user(c, buf))
+			return -EFAULT;
+
+		if (c != '0')
+			return count;
+
+		list_for_each_entry(class, &all_lock_classes, lock_entry)
+			clear_lock_stats(class);
+	}
+	return count;
+}
+
+static int lock_stat_release(struct inode *inode, struct file *file)
+{
+	struct seq_file *seq = file->private_data;
+
+	vfree(seq->private);
+	return seq_release(inode, file);
+}
+
+static const struct file_operations proc_lock_stat_operations = {
+	.open		= lock_stat_open,
+	.write		= lock_stat_write,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= lock_stat_release,
+};
+#endif /* CONFIG_LOCK_STAT */
+
+static int __init lockdep_proc_init(void)
+{
+	proc_create("lockdep", S_IRUSR, NULL, &proc_lockdep_operations);
+#ifdef CONFIG_PROVE_LOCKING
+	proc_create("lockdep_chains", S_IRUSR, NULL,
+		    &proc_lockdep_chains_operations);
+#endif
+	proc_create("lockdep_stats", S_IRUSR, NULL,
+		    &proc_lockdep_stats_operations);
+
+#ifdef CONFIG_LOCK_STAT
+	proc_create("lock_stat", S_IRUSR | S_IWUSR, NULL,
+		    &proc_lock_stat_operations);
+#endif
+
+	return 0;
+}
+
+__initcall(lockdep_proc_init);
+
diff --git a/kernel/locking/lockdep_states.h b/kernel/locking/lockdep_states.h
new file mode 100644
index 000000000000..995b0cc2b84c
--- /dev/null
+++ b/kernel/locking/lockdep_states.h
@@ -0,0 +1,9 @@
+/*
+ * Lockdep states,
+ *
+ * please update XXX_LOCK_USAGE_STATES in include/linux/lockdep.h whenever
+ * you add one, or come up with a nice dynamic solution.
+ */
+LOCKDEP_STATE(HARDIRQ)
+LOCKDEP_STATE(SOFTIRQ)
+LOCKDEP_STATE(RECLAIM_FS)
-- 
cgit 


From 60fc28746a7b61775ae28950ddf7a4ac15955639 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 31 Oct 2013 18:15:36 +0100
Subject: locking: Move the spinlock code to kernel/locking/

Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-b81ol0z3mon45m51o131yc9j@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/Makefile                 |   3 -
 kernel/locking/Makefile         |   4 +
 kernel/locking/spinlock.c       | 399 ++++++++++++++++++++++++++++++++++++++++
 kernel/locking/spinlock_debug.c | 302 ++++++++++++++++++++++++++++++
 kernel/spinlock.c               | 399 ----------------------------------------
 lib/Makefile                    |   1 -
 lib/spinlock_debug.c            | 302 ------------------------------
 7 files changed, 705 insertions(+), 705 deletions(-)
 create mode 100644 kernel/locking/spinlock.c
 create mode 100644 kernel/locking/spinlock_debug.c
 delete mode 100644 kernel/spinlock.c
 delete mode 100644 lib/spinlock_debug.c

diff --git a/kernel/Makefile b/kernel/Makefile
index 4fffd6ee42c1..4bce165dce5d 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -43,9 +43,6 @@ obj-$(CONFIG_SMP) += smp.o
 ifneq ($(CONFIG_SMP),y)
 obj-y += up.o
 endif
-obj-$(CONFIG_SMP) += spinlock.o
-obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock.o
-obj-$(CONFIG_PROVE_LOCKING) += spinlock.o
 obj-$(CONFIG_UID16) += uid16.o
 obj-$(CONFIG_MODULES) += module.o
 obj-$(CONFIG_MODULE_SIG) += module_signing.o modsign_pubkey.o modsign_certificate.o
diff --git a/kernel/locking/Makefile b/kernel/locking/Makefile
index c103599fc1ba..674d2152d10f 100644
--- a/kernel/locking/Makefile
+++ b/kernel/locking/Makefile
@@ -13,3 +13,7 @@ obj-$(CONFIG_LOCKDEP) += lockdep.o
 ifeq ($(CONFIG_PROC_FS),y)
 obj-$(CONFIG_LOCKDEP) += lockdep_proc.o
 endif
+obj-$(CONFIG_SMP) += spinlock.o
+obj-$(CONFIG_PROVE_LOCKING) += spinlock.o
+obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock.o
+obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock_debug.o
diff --git a/kernel/locking/spinlock.c b/kernel/locking/spinlock.c
new file mode 100644
index 000000000000..4b082b5cac9e
--- /dev/null
+++ b/kernel/locking/spinlock.c
@@ -0,0 +1,399 @@
+/*
+ * Copyright (2004) Linus Torvalds
+ *
+ * Author: Zwane Mwaikambo <zwane@fsmlabs.com>
+ *
+ * Copyright (2004, 2005) Ingo Molnar
+ *
+ * This file contains the spinlock/rwlock implementations for the
+ * SMP and the DEBUG_SPINLOCK cases. (UP-nondebug inlines them)
+ *
+ * Note that some architectures have special knowledge about the
+ * stack frames of these functions in their profile_pc. If you
+ * change anything significant here that could change the stack
+ * frame contact the architecture maintainers.
+ */
+
+#include <linux/linkage.h>
+#include <linux/preempt.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/debug_locks.h>
+#include <linux/export.h>
+
+/*
+ * If lockdep is enabled then we use the non-preemption spin-ops
+ * even on CONFIG_PREEMPT, because lockdep assumes that interrupts are
+ * not re-enabled during lock-acquire (which the preempt-spin-ops do):
+ */
+#if !defined(CONFIG_GENERIC_LOCKBREAK) || defined(CONFIG_DEBUG_LOCK_ALLOC)
+/*
+ * The __lock_function inlines are taken from
+ * include/linux/spinlock_api_smp.h
+ */
+#else
+#define raw_read_can_lock(l)	read_can_lock(l)
+#define raw_write_can_lock(l)	write_can_lock(l)
+
+/*
+ * Some architectures can relax in favour of the CPU owning the lock.
+ */
+#ifndef arch_read_relax
+# define arch_read_relax(l)	cpu_relax()
+#endif
+#ifndef arch_write_relax
+# define arch_write_relax(l)	cpu_relax()
+#endif
+#ifndef arch_spin_relax
+# define arch_spin_relax(l)	cpu_relax()
+#endif
+
+/*
+ * We build the __lock_function inlines here. They are too large for
+ * inlining all over the place, but here is only one user per function
+ * which embedds them into the calling _lock_function below.
+ *
+ * This could be a long-held lock. We both prepare to spin for a long
+ * time (making _this_ CPU preemptable if possible), and we also signal
+ * towards that other CPU that it should break the lock ASAP.
+ */
+#define BUILD_LOCK_OPS(op, locktype)					\
+void __lockfunc __raw_##op##_lock(locktype##_t *lock)			\
+{									\
+	for (;;) {							\
+		preempt_disable();					\
+		if (likely(do_raw_##op##_trylock(lock)))		\
+			break;						\
+		preempt_enable();					\
+									\
+		if (!(lock)->break_lock)				\
+			(lock)->break_lock = 1;				\
+		while (!raw_##op##_can_lock(lock) && (lock)->break_lock)\
+			arch_##op##_relax(&lock->raw_lock);		\
+	}								\
+	(lock)->break_lock = 0;						\
+}									\
+									\
+unsigned long __lockfunc __raw_##op##_lock_irqsave(locktype##_t *lock)	\
+{									\
+	unsigned long flags;						\
+									\
+	for (;;) {							\
+		preempt_disable();					\
+		local_irq_save(flags);					\
+		if (likely(do_raw_##op##_trylock(lock)))		\
+			break;						\
+		local_irq_restore(flags);				\
+		preempt_enable();					\
+									\
+		if (!(lock)->break_lock)				\
+			(lock)->break_lock = 1;				\
+		while (!raw_##op##_can_lock(lock) && (lock)->break_lock)\
+			arch_##op##_relax(&lock->raw_lock);		\
+	}								\
+	(lock)->break_lock = 0;						\
+	return flags;							\
+}									\
+									\
+void __lockfunc __raw_##op##_lock_irq(locktype##_t *lock)		\
+{									\
+	_raw_##op##_lock_irqsave(lock);					\
+}									\
+									\
+void __lockfunc __raw_##op##_lock_bh(locktype##_t *lock)		\
+{									\
+	unsigned long flags;						\
+									\
+	/*							*/	\
+	/* Careful: we must exclude softirqs too, hence the	*/	\
+	/* irq-disabling. We use the generic preemption-aware	*/	\
+	/* function:						*/	\
+	/**/								\
+	flags = _raw_##op##_lock_irqsave(lock);				\
+	local_bh_disable();						\
+	local_irq_restore(flags);					\
+}									\
+
+/*
+ * Build preemption-friendly versions of the following
+ * lock-spinning functions:
+ *
+ *         __[spin|read|write]_lock()
+ *         __[spin|read|write]_lock_irq()
+ *         __[spin|read|write]_lock_irqsave()
+ *         __[spin|read|write]_lock_bh()
+ */
+BUILD_LOCK_OPS(spin, raw_spinlock);
+BUILD_LOCK_OPS(read, rwlock);
+BUILD_LOCK_OPS(write, rwlock);
+
+#endif
+
+#ifndef CONFIG_INLINE_SPIN_TRYLOCK
+int __lockfunc _raw_spin_trylock(raw_spinlock_t *lock)
+{
+	return __raw_spin_trylock(lock);
+}
+EXPORT_SYMBOL(_raw_spin_trylock);
+#endif
+
+#ifndef CONFIG_INLINE_SPIN_TRYLOCK_BH
+int __lockfunc _raw_spin_trylock_bh(raw_spinlock_t *lock)
+{
+	return __raw_spin_trylock_bh(lock);
+}
+EXPORT_SYMBOL(_raw_spin_trylock_bh);
+#endif
+
+#ifndef CONFIG_INLINE_SPIN_LOCK
+void __lockfunc _raw_spin_lock(raw_spinlock_t *lock)
+{
+	__raw_spin_lock(lock);
+}
+EXPORT_SYMBOL(_raw_spin_lock);
+#endif
+
+#ifndef CONFIG_INLINE_SPIN_LOCK_IRQSAVE
+unsigned long __lockfunc _raw_spin_lock_irqsave(raw_spinlock_t *lock)
+{
+	return __raw_spin_lock_irqsave(lock);
+}
+EXPORT_SYMBOL(_raw_spin_lock_irqsave);
+#endif
+
+#ifndef CONFIG_INLINE_SPIN_LOCK_IRQ
+void __lockfunc _raw_spin_lock_irq(raw_spinlock_t *lock)
+{
+	__raw_spin_lock_irq(lock);
+}
+EXPORT_SYMBOL(_raw_spin_lock_irq);
+#endif
+
+#ifndef CONFIG_INLINE_SPIN_LOCK_BH
+void __lockfunc _raw_spin_lock_bh(raw_spinlock_t *lock)
+{
+	__raw_spin_lock_bh(lock);
+}
+EXPORT_SYMBOL(_raw_spin_lock_bh);
+#endif
+
+#ifdef CONFIG_UNINLINE_SPIN_UNLOCK
+void __lockfunc _raw_spin_unlock(raw_spinlock_t *lock)
+{
+	__raw_spin_unlock(lock);
+}
+EXPORT_SYMBOL(_raw_spin_unlock);
+#endif
+
+#ifndef CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE
+void __lockfunc _raw_spin_unlock_irqrestore(raw_spinlock_t *lock, unsigned long flags)
+{
+	__raw_spin_unlock_irqrestore(lock, flags);
+}
+EXPORT_SYMBOL(_raw_spin_unlock_irqrestore);
+#endif
+
+#ifndef CONFIG_INLINE_SPIN_UNLOCK_IRQ
+void __lockfunc _raw_spin_unlock_irq(raw_spinlock_t *lock)
+{
+	__raw_spin_unlock_irq(lock);
+}
+EXPORT_SYMBOL(_raw_spin_unlock_irq);
+#endif
+
+#ifndef CONFIG_INLINE_SPIN_UNLOCK_BH
+void __lockfunc _raw_spin_unlock_bh(raw_spinlock_t *lock)
+{
+	__raw_spin_unlock_bh(lock);
+}
+EXPORT_SYMBOL(_raw_spin_unlock_bh);
+#endif
+
+#ifndef CONFIG_INLINE_READ_TRYLOCK
+int __lockfunc _raw_read_trylock(rwlock_t *lock)
+{
+	return __raw_read_trylock(lock);
+}
+EXPORT_SYMBOL(_raw_read_trylock);
+#endif
+
+#ifndef CONFIG_INLINE_READ_LOCK
+void __lockfunc _raw_read_lock(rwlock_t *lock)
+{
+	__raw_read_lock(lock);
+}
+EXPORT_SYMBOL(_raw_read_lock);
+#endif
+
+#ifndef CONFIG_INLINE_READ_LOCK_IRQSAVE
+unsigned long __lockfunc _raw_read_lock_irqsave(rwlock_t *lock)
+{
+	return __raw_read_lock_irqsave(lock);
+}
+EXPORT_SYMBOL(_raw_read_lock_irqsave);
+#endif
+
+#ifndef CONFIG_INLINE_READ_LOCK_IRQ
+void __lockfunc _raw_read_lock_irq(rwlock_t *lock)
+{
+	__raw_read_lock_irq(lock);
+}
+EXPORT_SYMBOL(_raw_read_lock_irq);
+#endif
+
+#ifndef CONFIG_INLINE_READ_LOCK_BH
+void __lockfunc _raw_read_lock_bh(rwlock_t *lock)
+{
+	__raw_read_lock_bh(lock);
+}
+EXPORT_SYMBOL(_raw_read_lock_bh);
+#endif
+
+#ifndef CONFIG_INLINE_READ_UNLOCK
+void __lockfunc _raw_read_unlock(rwlock_t *lock)
+{
+	__raw_read_unlock(lock);
+}
+EXPORT_SYMBOL(_raw_read_unlock);
+#endif
+
+#ifndef CONFIG_INLINE_READ_UNLOCK_IRQRESTORE
+void __lockfunc _raw_read_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
+{
+	__raw_read_unlock_irqrestore(lock, flags);
+}
+EXPORT_SYMBOL(_raw_read_unlock_irqrestore);
+#endif
+
+#ifndef CONFIG_INLINE_READ_UNLOCK_IRQ
+void __lockfunc _raw_read_unlock_irq(rwlock_t *lock)
+{
+	__raw_read_unlock_irq(lock);
+}
+EXPORT_SYMBOL(_raw_read_unlock_irq);
+#endif
+
+#ifndef CONFIG_INLINE_READ_UNLOCK_BH
+void __lockfunc _raw_read_unlock_bh(rwlock_t *lock)
+{
+	__raw_read_unlock_bh(lock);
+}
+EXPORT_SYMBOL(_raw_read_unlock_bh);
+#endif
+
+#ifndef CONFIG_INLINE_WRITE_TRYLOCK
+int __lockfunc _raw_write_trylock(rwlock_t *lock)
+{
+	return __raw_write_trylock(lock);
+}
+EXPORT_SYMBOL(_raw_write_trylock);
+#endif
+
+#ifndef CONFIG_INLINE_WRITE_LOCK
+void __lockfunc _raw_write_lock(rwlock_t *lock)
+{
+	__raw_write_lock(lock);
+}
+EXPORT_SYMBOL(_raw_write_lock);
+#endif
+
+#ifndef CONFIG_INLINE_WRITE_LOCK_IRQSAVE
+unsigned long __lockfunc _raw_write_lock_irqsave(rwlock_t *lock)
+{
+	return __raw_write_lock_irqsave(lock);
+}
+EXPORT_SYMBOL(_raw_write_lock_irqsave);
+#endif
+
+#ifndef CONFIG_INLINE_WRITE_LOCK_IRQ
+void __lockfunc _raw_write_lock_irq(rwlock_t *lock)
+{
+	__raw_write_lock_irq(lock);
+}
+EXPORT_SYMBOL(_raw_write_lock_irq);
+#endif
+
+#ifndef CONFIG_INLINE_WRITE_LOCK_BH
+void __lockfunc _raw_write_lock_bh(rwlock_t *lock)
+{
+	__raw_write_lock_bh(lock);
+}
+EXPORT_SYMBOL(_raw_write_lock_bh);
+#endif
+
+#ifndef CONFIG_INLINE_WRITE_UNLOCK
+void __lockfunc _raw_write_unlock(rwlock_t *lock)
+{
+	__raw_write_unlock(lock);
+}
+EXPORT_SYMBOL(_raw_write_unlock);
+#endif
+
+#ifndef CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE
+void __lockfunc _raw_write_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
+{
+	__raw_write_unlock_irqrestore(lock, flags);
+}
+EXPORT_SYMBOL(_raw_write_unlock_irqrestore);
+#endif
+
+#ifndef CONFIG_INLINE_WRITE_UNLOCK_IRQ
+void __lockfunc _raw_write_unlock_irq(rwlock_t *lock)
+{
+	__raw_write_unlock_irq(lock);
+}
+EXPORT_SYMBOL(_raw_write_unlock_irq);
+#endif
+
+#ifndef CONFIG_INLINE_WRITE_UNLOCK_BH
+void __lockfunc _raw_write_unlock_bh(rwlock_t *lock)
+{
+	__raw_write_unlock_bh(lock);
+}
+EXPORT_SYMBOL(_raw_write_unlock_bh);
+#endif
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+
+void __lockfunc _raw_spin_lock_nested(raw_spinlock_t *lock, int subclass)
+{
+	preempt_disable();
+	spin_acquire(&lock->dep_map, subclass, 0, _RET_IP_);
+	LOCK_CONTENDED(lock, do_raw_spin_trylock, do_raw_spin_lock);
+}
+EXPORT_SYMBOL(_raw_spin_lock_nested);
+
+unsigned long __lockfunc _raw_spin_lock_irqsave_nested(raw_spinlock_t *lock,
+						   int subclass)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	preempt_disable();
+	spin_acquire(&lock->dep_map, subclass, 0, _RET_IP_);
+	LOCK_CONTENDED_FLAGS(lock, do_raw_spin_trylock, do_raw_spin_lock,
+				do_raw_spin_lock_flags, &flags);
+	return flags;
+}
+EXPORT_SYMBOL(_raw_spin_lock_irqsave_nested);
+
+void __lockfunc _raw_spin_lock_nest_lock(raw_spinlock_t *lock,
+				     struct lockdep_map *nest_lock)
+{
+	preempt_disable();
+	spin_acquire_nest(&lock->dep_map, 0, 0, nest_lock, _RET_IP_);
+	LOCK_CONTENDED(lock, do_raw_spin_trylock, do_raw_spin_lock);
+}
+EXPORT_SYMBOL(_raw_spin_lock_nest_lock);
+
+#endif
+
+notrace int in_lock_functions(unsigned long addr)
+{
+	/* Linker adds these: start and end of __lockfunc functions */
+	extern char __lock_text_start[], __lock_text_end[];
+
+	return addr >= (unsigned long)__lock_text_start
+	&& addr < (unsigned long)__lock_text_end;
+}
+EXPORT_SYMBOL(in_lock_functions);
diff --git a/kernel/locking/spinlock_debug.c b/kernel/locking/spinlock_debug.c
new file mode 100644
index 000000000000..0374a596cffa
--- /dev/null
+++ b/kernel/locking/spinlock_debug.c
@@ -0,0 +1,302 @@
+/*
+ * Copyright 2005, Red Hat, Inc., Ingo Molnar
+ * Released under the General Public License (GPL).
+ *
+ * This file contains the spinlock/rwlock implementations for
+ * DEBUG_SPINLOCK.
+ */
+
+#include <linux/spinlock.h>
+#include <linux/nmi.h>
+#include <linux/interrupt.h>
+#include <linux/debug_locks.h>
+#include <linux/delay.h>
+#include <linux/export.h>
+
+void __raw_spin_lock_init(raw_spinlock_t *lock, const char *name,
+			  struct lock_class_key *key)
+{
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+	/*
+	 * Make sure we are not reinitializing a held lock:
+	 */
+	debug_check_no_locks_freed((void *)lock, sizeof(*lock));
+	lockdep_init_map(&lock->dep_map, name, key, 0);
+#endif
+	lock->raw_lock = (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED;
+	lock->magic = SPINLOCK_MAGIC;
+	lock->owner = SPINLOCK_OWNER_INIT;
+	lock->owner_cpu = -1;
+}
+
+EXPORT_SYMBOL(__raw_spin_lock_init);
+
+void __rwlock_init(rwlock_t *lock, const char *name,
+		   struct lock_class_key *key)
+{
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+	/*
+	 * Make sure we are not reinitializing a held lock:
+	 */
+	debug_check_no_locks_freed((void *)lock, sizeof(*lock));
+	lockdep_init_map(&lock->dep_map, name, key, 0);
+#endif
+	lock->raw_lock = (arch_rwlock_t) __ARCH_RW_LOCK_UNLOCKED;
+	lock->magic = RWLOCK_MAGIC;
+	lock->owner = SPINLOCK_OWNER_INIT;
+	lock->owner_cpu = -1;
+}
+
+EXPORT_SYMBOL(__rwlock_init);
+
+static void spin_dump(raw_spinlock_t *lock, const char *msg)
+{
+	struct task_struct *owner = NULL;
+
+	if (lock->owner && lock->owner != SPINLOCK_OWNER_INIT)
+		owner = lock->owner;
+	printk(KERN_EMERG "BUG: spinlock %s on CPU#%d, %s/%d\n",
+		msg, raw_smp_processor_id(),
+		current->comm, task_pid_nr(current));
+	printk(KERN_EMERG " lock: %pS, .magic: %08x, .owner: %s/%d, "
+			".owner_cpu: %d\n",
+		lock, lock->magic,
+		owner ? owner->comm : "<none>",
+		owner ? task_pid_nr(owner) : -1,
+		lock->owner_cpu);
+	dump_stack();
+}
+
+static void spin_bug(raw_spinlock_t *lock, const char *msg)
+{
+	if (!debug_locks_off())
+		return;
+
+	spin_dump(lock, msg);
+}
+
+#define SPIN_BUG_ON(cond, lock, msg) if (unlikely(cond)) spin_bug(lock, msg)
+
+static inline void
+debug_spin_lock_before(raw_spinlock_t *lock)
+{
+	SPIN_BUG_ON(lock->magic != SPINLOCK_MAGIC, lock, "bad magic");
+	SPIN_BUG_ON(lock->owner == current, lock, "recursion");
+	SPIN_BUG_ON(lock->owner_cpu == raw_smp_processor_id(),
+							lock, "cpu recursion");
+}
+
+static inline void debug_spin_lock_after(raw_spinlock_t *lock)
+{
+	lock->owner_cpu = raw_smp_processor_id();
+	lock->owner = current;
+}
+
+static inline void debug_spin_unlock(raw_spinlock_t *lock)
+{
+	SPIN_BUG_ON(lock->magic != SPINLOCK_MAGIC, lock, "bad magic");
+	SPIN_BUG_ON(!raw_spin_is_locked(lock), lock, "already unlocked");
+	SPIN_BUG_ON(lock->owner != current, lock, "wrong owner");
+	SPIN_BUG_ON(lock->owner_cpu != raw_smp_processor_id(),
+							lock, "wrong CPU");
+	lock->owner = SPINLOCK_OWNER_INIT;
+	lock->owner_cpu = -1;
+}
+
+static void __spin_lock_debug(raw_spinlock_t *lock)
+{
+	u64 i;
+	u64 loops = loops_per_jiffy * HZ;
+
+	for (i = 0; i < loops; i++) {
+		if (arch_spin_trylock(&lock->raw_lock))
+			return;
+		__delay(1);
+	}
+	/* lockup suspected: */
+	spin_dump(lock, "lockup suspected");
+#ifdef CONFIG_SMP
+	trigger_all_cpu_backtrace();
+#endif
+
+	/*
+	 * The trylock above was causing a livelock.  Give the lower level arch
+	 * specific lock code a chance to acquire the lock. We have already
+	 * printed a warning/backtrace at this point. The non-debug arch
+	 * specific code might actually succeed in acquiring the lock.  If it is
+	 * not successful, the end-result is the same - there is no forward
+	 * progress.
+	 */
+	arch_spin_lock(&lock->raw_lock);
+}
+
+void do_raw_spin_lock(raw_spinlock_t *lock)
+{
+	debug_spin_lock_before(lock);
+	if (unlikely(!arch_spin_trylock(&lock->raw_lock)))
+		__spin_lock_debug(lock);
+	debug_spin_lock_after(lock);
+}
+
+int do_raw_spin_trylock(raw_spinlock_t *lock)
+{
+	int ret = arch_spin_trylock(&lock->raw_lock);
+
+	if (ret)
+		debug_spin_lock_after(lock);
+#ifndef CONFIG_SMP
+	/*
+	 * Must not happen on UP:
+	 */
+	SPIN_BUG_ON(!ret, lock, "trylock failure on UP");
+#endif
+	return ret;
+}
+
+void do_raw_spin_unlock(raw_spinlock_t *lock)
+{
+	debug_spin_unlock(lock);
+	arch_spin_unlock(&lock->raw_lock);
+}
+
+static void rwlock_bug(rwlock_t *lock, const char *msg)
+{
+	if (!debug_locks_off())
+		return;
+
+	printk(KERN_EMERG "BUG: rwlock %s on CPU#%d, %s/%d, %p\n",
+		msg, raw_smp_processor_id(), current->comm,
+		task_pid_nr(current), lock);
+	dump_stack();
+}
+
+#define RWLOCK_BUG_ON(cond, lock, msg) if (unlikely(cond)) rwlock_bug(lock, msg)
+
+#if 0		/* __write_lock_debug() can lock up - maybe this can too? */
+static void __read_lock_debug(rwlock_t *lock)
+{
+	u64 i;
+	u64 loops = loops_per_jiffy * HZ;
+	int print_once = 1;
+
+	for (;;) {
+		for (i = 0; i < loops; i++) {
+			if (arch_read_trylock(&lock->raw_lock))
+				return;
+			__delay(1);
+		}
+		/* lockup suspected: */
+		if (print_once) {
+			print_once = 0;
+			printk(KERN_EMERG "BUG: read-lock lockup on CPU#%d, "
+					"%s/%d, %p\n",
+				raw_smp_processor_id(), current->comm,
+				current->pid, lock);
+			dump_stack();
+		}
+	}
+}
+#endif
+
+void do_raw_read_lock(rwlock_t *lock)
+{
+	RWLOCK_BUG_ON(lock->magic != RWLOCK_MAGIC, lock, "bad magic");
+	arch_read_lock(&lock->raw_lock);
+}
+
+int do_raw_read_trylock(rwlock_t *lock)
+{
+	int ret = arch_read_trylock(&lock->raw_lock);
+
+#ifndef CONFIG_SMP
+	/*
+	 * Must not happen on UP:
+	 */
+	RWLOCK_BUG_ON(!ret, lock, "trylock failure on UP");
+#endif
+	return ret;
+}
+
+void do_raw_read_unlock(rwlock_t *lock)
+{
+	RWLOCK_BUG_ON(lock->magic != RWLOCK_MAGIC, lock, "bad magic");
+	arch_read_unlock(&lock->raw_lock);
+}
+
+static inline void debug_write_lock_before(rwlock_t *lock)
+{
+	RWLOCK_BUG_ON(lock->magic != RWLOCK_MAGIC, lock, "bad magic");
+	RWLOCK_BUG_ON(lock->owner == current, lock, "recursion");
+	RWLOCK_BUG_ON(lock->owner_cpu == raw_smp_processor_id(),
+							lock, "cpu recursion");
+}
+
+static inline void debug_write_lock_after(rwlock_t *lock)
+{
+	lock->owner_cpu = raw_smp_processor_id();
+	lock->owner = current;
+}
+
+static inline void debug_write_unlock(rwlock_t *lock)
+{
+	RWLOCK_BUG_ON(lock->magic != RWLOCK_MAGIC, lock, "bad magic");
+	RWLOCK_BUG_ON(lock->owner != current, lock, "wrong owner");
+	RWLOCK_BUG_ON(lock->owner_cpu != raw_smp_processor_id(),
+							lock, "wrong CPU");
+	lock->owner = SPINLOCK_OWNER_INIT;
+	lock->owner_cpu = -1;
+}
+
+#if 0		/* This can cause lockups */
+static void __write_lock_debug(rwlock_t *lock)
+{
+	u64 i;
+	u64 loops = loops_per_jiffy * HZ;
+	int print_once = 1;
+
+	for (;;) {
+		for (i = 0; i < loops; i++) {
+			if (arch_write_trylock(&lock->raw_lock))
+				return;
+			__delay(1);
+		}
+		/* lockup suspected: */
+		if (print_once) {
+			print_once = 0;
+			printk(KERN_EMERG "BUG: write-lock lockup on CPU#%d, "
+					"%s/%d, %p\n",
+				raw_smp_processor_id(), current->comm,
+				current->pid, lock);
+			dump_stack();
+		}
+	}
+}
+#endif
+
+void do_raw_write_lock(rwlock_t *lock)
+{
+	debug_write_lock_before(lock);
+	arch_write_lock(&lock->raw_lock);
+	debug_write_lock_after(lock);
+}
+
+int do_raw_write_trylock(rwlock_t *lock)
+{
+	int ret = arch_write_trylock(&lock->raw_lock);
+
+	if (ret)
+		debug_write_lock_after(lock);
+#ifndef CONFIG_SMP
+	/*
+	 * Must not happen on UP:
+	 */
+	RWLOCK_BUG_ON(!ret, lock, "trylock failure on UP");
+#endif
+	return ret;
+}
+
+void do_raw_write_unlock(rwlock_t *lock)
+{
+	debug_write_unlock(lock);
+	arch_write_unlock(&lock->raw_lock);
+}
diff --git a/kernel/spinlock.c b/kernel/spinlock.c
deleted file mode 100644
index 4b082b5cac9e..000000000000
--- a/kernel/spinlock.c
+++ /dev/null
@@ -1,399 +0,0 @@
-/*
- * Copyright (2004) Linus Torvalds
- *
- * Author: Zwane Mwaikambo <zwane@fsmlabs.com>
- *
- * Copyright (2004, 2005) Ingo Molnar
- *
- * This file contains the spinlock/rwlock implementations for the
- * SMP and the DEBUG_SPINLOCK cases. (UP-nondebug inlines them)
- *
- * Note that some architectures have special knowledge about the
- * stack frames of these functions in their profile_pc. If you
- * change anything significant here that could change the stack
- * frame contact the architecture maintainers.
- */
-
-#include <linux/linkage.h>
-#include <linux/preempt.h>
-#include <linux/spinlock.h>
-#include <linux/interrupt.h>
-#include <linux/debug_locks.h>
-#include <linux/export.h>
-
-/*
- * If lockdep is enabled then we use the non-preemption spin-ops
- * even on CONFIG_PREEMPT, because lockdep assumes that interrupts are
- * not re-enabled during lock-acquire (which the preempt-spin-ops do):
- */
-#if !defined(CONFIG_GENERIC_LOCKBREAK) || defined(CONFIG_DEBUG_LOCK_ALLOC)
-/*
- * The __lock_function inlines are taken from
- * include/linux/spinlock_api_smp.h
- */
-#else
-#define raw_read_can_lock(l)	read_can_lock(l)
-#define raw_write_can_lock(l)	write_can_lock(l)
-
-/*
- * Some architectures can relax in favour of the CPU owning the lock.
- */
-#ifndef arch_read_relax
-# define arch_read_relax(l)	cpu_relax()
-#endif
-#ifndef arch_write_relax
-# define arch_write_relax(l)	cpu_relax()
-#endif
-#ifndef arch_spin_relax
-# define arch_spin_relax(l)	cpu_relax()
-#endif
-
-/*
- * We build the __lock_function inlines here. They are too large for
- * inlining all over the place, but here is only one user per function
- * which embedds them into the calling _lock_function below.
- *
- * This could be a long-held lock. We both prepare to spin for a long
- * time (making _this_ CPU preemptable if possible), and we also signal
- * towards that other CPU that it should break the lock ASAP.
- */
-#define BUILD_LOCK_OPS(op, locktype)					\
-void __lockfunc __raw_##op##_lock(locktype##_t *lock)			\
-{									\
-	for (;;) {							\
-		preempt_disable();					\
-		if (likely(do_raw_##op##_trylock(lock)))		\
-			break;						\
-		preempt_enable();					\
-									\
-		if (!(lock)->break_lock)				\
-			(lock)->break_lock = 1;				\
-		while (!raw_##op##_can_lock(lock) && (lock)->break_lock)\
-			arch_##op##_relax(&lock->raw_lock);		\
-	}								\
-	(lock)->break_lock = 0;						\
-}									\
-									\
-unsigned long __lockfunc __raw_##op##_lock_irqsave(locktype##_t *lock)	\
-{									\
-	unsigned long flags;						\
-									\
-	for (;;) {							\
-		preempt_disable();					\
-		local_irq_save(flags);					\
-		if (likely(do_raw_##op##_trylock(lock)))		\
-			break;						\
-		local_irq_restore(flags);				\
-		preempt_enable();					\
-									\
-		if (!(lock)->break_lock)				\
-			(lock)->break_lock = 1;				\
-		while (!raw_##op##_can_lock(lock) && (lock)->break_lock)\
-			arch_##op##_relax(&lock->raw_lock);		\
-	}								\
-	(lock)->break_lock = 0;						\
-	return flags;							\
-}									\
-									\
-void __lockfunc __raw_##op##_lock_irq(locktype##_t *lock)		\
-{									\
-	_raw_##op##_lock_irqsave(lock);					\
-}									\
-									\
-void __lockfunc __raw_##op##_lock_bh(locktype##_t *lock)		\
-{									\
-	unsigned long flags;						\
-									\
-	/*							*/	\
-	/* Careful: we must exclude softirqs too, hence the	*/	\
-	/* irq-disabling. We use the generic preemption-aware	*/	\
-	/* function:						*/	\
-	/**/								\
-	flags = _raw_##op##_lock_irqsave(lock);				\
-	local_bh_disable();						\
-	local_irq_restore(flags);					\
-}									\
-
-/*
- * Build preemption-friendly versions of the following
- * lock-spinning functions:
- *
- *         __[spin|read|write]_lock()
- *         __[spin|read|write]_lock_irq()
- *         __[spin|read|write]_lock_irqsave()
- *         __[spin|read|write]_lock_bh()
- */
-BUILD_LOCK_OPS(spin, raw_spinlock);
-BUILD_LOCK_OPS(read, rwlock);
-BUILD_LOCK_OPS(write, rwlock);
-
-#endif
-
-#ifndef CONFIG_INLINE_SPIN_TRYLOCK
-int __lockfunc _raw_spin_trylock(raw_spinlock_t *lock)
-{
-	return __raw_spin_trylock(lock);
-}
-EXPORT_SYMBOL(_raw_spin_trylock);
-#endif
-
-#ifndef CONFIG_INLINE_SPIN_TRYLOCK_BH
-int __lockfunc _raw_spin_trylock_bh(raw_spinlock_t *lock)
-{
-	return __raw_spin_trylock_bh(lock);
-}
-EXPORT_SYMBOL(_raw_spin_trylock_bh);
-#endif
-
-#ifndef CONFIG_INLINE_SPIN_LOCK
-void __lockfunc _raw_spin_lock(raw_spinlock_t *lock)
-{
-	__raw_spin_lock(lock);
-}
-EXPORT_SYMBOL(_raw_spin_lock);
-#endif
-
-#ifndef CONFIG_INLINE_SPIN_LOCK_IRQSAVE
-unsigned long __lockfunc _raw_spin_lock_irqsave(raw_spinlock_t *lock)
-{
-	return __raw_spin_lock_irqsave(lock);
-}
-EXPORT_SYMBOL(_raw_spin_lock_irqsave);
-#endif
-
-#ifndef CONFIG_INLINE_SPIN_LOCK_IRQ
-void __lockfunc _raw_spin_lock_irq(raw_spinlock_t *lock)
-{
-	__raw_spin_lock_irq(lock);
-}
-EXPORT_SYMBOL(_raw_spin_lock_irq);
-#endif
-
-#ifndef CONFIG_INLINE_SPIN_LOCK_BH
-void __lockfunc _raw_spin_lock_bh(raw_spinlock_t *lock)
-{
-	__raw_spin_lock_bh(lock);
-}
-EXPORT_SYMBOL(_raw_spin_lock_bh);
-#endif
-
-#ifdef CONFIG_UNINLINE_SPIN_UNLOCK
-void __lockfunc _raw_spin_unlock(raw_spinlock_t *lock)
-{
-	__raw_spin_unlock(lock);
-}
-EXPORT_SYMBOL(_raw_spin_unlock);
-#endif
-
-#ifndef CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE
-void __lockfunc _raw_spin_unlock_irqrestore(raw_spinlock_t *lock, unsigned long flags)
-{
-	__raw_spin_unlock_irqrestore(lock, flags);
-}
-EXPORT_SYMBOL(_raw_spin_unlock_irqrestore);
-#endif
-
-#ifndef CONFIG_INLINE_SPIN_UNLOCK_IRQ
-void __lockfunc _raw_spin_unlock_irq(raw_spinlock_t *lock)
-{
-	__raw_spin_unlock_irq(lock);
-}
-EXPORT_SYMBOL(_raw_spin_unlock_irq);
-#endif
-
-#ifndef CONFIG_INLINE_SPIN_UNLOCK_BH
-void __lockfunc _raw_spin_unlock_bh(raw_spinlock_t *lock)
-{
-	__raw_spin_unlock_bh(lock);
-}
-EXPORT_SYMBOL(_raw_spin_unlock_bh);
-#endif
-
-#ifndef CONFIG_INLINE_READ_TRYLOCK
-int __lockfunc _raw_read_trylock(rwlock_t *lock)
-{
-	return __raw_read_trylock(lock);
-}
-EXPORT_SYMBOL(_raw_read_trylock);
-#endif
-
-#ifndef CONFIG_INLINE_READ_LOCK
-void __lockfunc _raw_read_lock(rwlock_t *lock)
-{
-	__raw_read_lock(lock);
-}
-EXPORT_SYMBOL(_raw_read_lock);
-#endif
-
-#ifndef CONFIG_INLINE_READ_LOCK_IRQSAVE
-unsigned long __lockfunc _raw_read_lock_irqsave(rwlock_t *lock)
-{
-	return __raw_read_lock_irqsave(lock);
-}
-EXPORT_SYMBOL(_raw_read_lock_irqsave);
-#endif
-
-#ifndef CONFIG_INLINE_READ_LOCK_IRQ
-void __lockfunc _raw_read_lock_irq(rwlock_t *lock)
-{
-	__raw_read_lock_irq(lock);
-}
-EXPORT_SYMBOL(_raw_read_lock_irq);
-#endif
-
-#ifndef CONFIG_INLINE_READ_LOCK_BH
-void __lockfunc _raw_read_lock_bh(rwlock_t *lock)
-{
-	__raw_read_lock_bh(lock);
-}
-EXPORT_SYMBOL(_raw_read_lock_bh);
-#endif
-
-#ifndef CONFIG_INLINE_READ_UNLOCK
-void __lockfunc _raw_read_unlock(rwlock_t *lock)
-{
-	__raw_read_unlock(lock);
-}
-EXPORT_SYMBOL(_raw_read_unlock);
-#endif
-
-#ifndef CONFIG_INLINE_READ_UNLOCK_IRQRESTORE
-void __lockfunc _raw_read_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
-{
-	__raw_read_unlock_irqrestore(lock, flags);
-}
-EXPORT_SYMBOL(_raw_read_unlock_irqrestore);
-#endif
-
-#ifndef CONFIG_INLINE_READ_UNLOCK_IRQ
-void __lockfunc _raw_read_unlock_irq(rwlock_t *lock)
-{
-	__raw_read_unlock_irq(lock);
-}
-EXPORT_SYMBOL(_raw_read_unlock_irq);
-#endif
-
-#ifndef CONFIG_INLINE_READ_UNLOCK_BH
-void __lockfunc _raw_read_unlock_bh(rwlock_t *lock)
-{
-	__raw_read_unlock_bh(lock);
-}
-EXPORT_SYMBOL(_raw_read_unlock_bh);
-#endif
-
-#ifndef CONFIG_INLINE_WRITE_TRYLOCK
-int __lockfunc _raw_write_trylock(rwlock_t *lock)
-{
-	return __raw_write_trylock(lock);
-}
-EXPORT_SYMBOL(_raw_write_trylock);
-#endif
-
-#ifndef CONFIG_INLINE_WRITE_LOCK
-void __lockfunc _raw_write_lock(rwlock_t *lock)
-{
-	__raw_write_lock(lock);
-}
-EXPORT_SYMBOL(_raw_write_lock);
-#endif
-
-#ifndef CONFIG_INLINE_WRITE_LOCK_IRQSAVE
-unsigned long __lockfunc _raw_write_lock_irqsave(rwlock_t *lock)
-{
-	return __raw_write_lock_irqsave(lock);
-}
-EXPORT_SYMBOL(_raw_write_lock_irqsave);
-#endif
-
-#ifndef CONFIG_INLINE_WRITE_LOCK_IRQ
-void __lockfunc _raw_write_lock_irq(rwlock_t *lock)
-{
-	__raw_write_lock_irq(lock);
-}
-EXPORT_SYMBOL(_raw_write_lock_irq);
-#endif
-
-#ifndef CONFIG_INLINE_WRITE_LOCK_BH
-void __lockfunc _raw_write_lock_bh(rwlock_t *lock)
-{
-	__raw_write_lock_bh(lock);
-}
-EXPORT_SYMBOL(_raw_write_lock_bh);
-#endif
-
-#ifndef CONFIG_INLINE_WRITE_UNLOCK
-void __lockfunc _raw_write_unlock(rwlock_t *lock)
-{
-	__raw_write_unlock(lock);
-}
-EXPORT_SYMBOL(_raw_write_unlock);
-#endif
-
-#ifndef CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE
-void __lockfunc _raw_write_unlock_irqrestore(rwlock_t *lock, unsigned long flags)
-{
-	__raw_write_unlock_irqrestore(lock, flags);
-}
-EXPORT_SYMBOL(_raw_write_unlock_irqrestore);
-#endif
-
-#ifndef CONFIG_INLINE_WRITE_UNLOCK_IRQ
-void __lockfunc _raw_write_unlock_irq(rwlock_t *lock)
-{
-	__raw_write_unlock_irq(lock);
-}
-EXPORT_SYMBOL(_raw_write_unlock_irq);
-#endif
-
-#ifndef CONFIG_INLINE_WRITE_UNLOCK_BH
-void __lockfunc _raw_write_unlock_bh(rwlock_t *lock)
-{
-	__raw_write_unlock_bh(lock);
-}
-EXPORT_SYMBOL(_raw_write_unlock_bh);
-#endif
-
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-
-void __lockfunc _raw_spin_lock_nested(raw_spinlock_t *lock, int subclass)
-{
-	preempt_disable();
-	spin_acquire(&lock->dep_map, subclass, 0, _RET_IP_);
-	LOCK_CONTENDED(lock, do_raw_spin_trylock, do_raw_spin_lock);
-}
-EXPORT_SYMBOL(_raw_spin_lock_nested);
-
-unsigned long __lockfunc _raw_spin_lock_irqsave_nested(raw_spinlock_t *lock,
-						   int subclass)
-{
-	unsigned long flags;
-
-	local_irq_save(flags);
-	preempt_disable();
-	spin_acquire(&lock->dep_map, subclass, 0, _RET_IP_);
-	LOCK_CONTENDED_FLAGS(lock, do_raw_spin_trylock, do_raw_spin_lock,
-				do_raw_spin_lock_flags, &flags);
-	return flags;
-}
-EXPORT_SYMBOL(_raw_spin_lock_irqsave_nested);
-
-void __lockfunc _raw_spin_lock_nest_lock(raw_spinlock_t *lock,
-				     struct lockdep_map *nest_lock)
-{
-	preempt_disable();
-	spin_acquire_nest(&lock->dep_map, 0, 0, nest_lock, _RET_IP_);
-	LOCK_CONTENDED(lock, do_raw_spin_trylock, do_raw_spin_lock);
-}
-EXPORT_SYMBOL(_raw_spin_lock_nest_lock);
-
-#endif
-
-notrace int in_lock_functions(unsigned long addr)
-{
-	/* Linker adds these: start and end of __lockfunc functions */
-	extern char __lock_text_start[], __lock_text_end[];
-
-	return addr >= (unsigned long)__lock_text_start
-	&& addr < (unsigned long)__lock_text_end;
-}
-EXPORT_SYMBOL(in_lock_functions);
diff --git a/lib/Makefile b/lib/Makefile
index f3bb2cb98adf..bee27e1d3431 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -42,7 +42,6 @@ obj-$(CONFIG_GENERIC_PCI_IOMAP) += pci_iomap.o
 obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o
 obj-$(CONFIG_CHECK_SIGNATURE) += check_signature.o
 obj-$(CONFIG_DEBUG_LOCKING_API_SELFTESTS) += locking-selftest.o
-obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock_debug.o
 lib-$(CONFIG_RWSEM_GENERIC_SPINLOCK) += rwsem-spinlock.o
 lib-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += rwsem.o
 lib-$(CONFIG_PERCPU_RWSEM) += percpu-rwsem.o
diff --git a/lib/spinlock_debug.c b/lib/spinlock_debug.c
deleted file mode 100644
index 0374a596cffa..000000000000
--- a/lib/spinlock_debug.c
+++ /dev/null
@@ -1,302 +0,0 @@
-/*
- * Copyright 2005, Red Hat, Inc., Ingo Molnar
- * Released under the General Public License (GPL).
- *
- * This file contains the spinlock/rwlock implementations for
- * DEBUG_SPINLOCK.
- */
-
-#include <linux/spinlock.h>
-#include <linux/nmi.h>
-#include <linux/interrupt.h>
-#include <linux/debug_locks.h>
-#include <linux/delay.h>
-#include <linux/export.h>
-
-void __raw_spin_lock_init(raw_spinlock_t *lock, const char *name,
-			  struct lock_class_key *key)
-{
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-	/*
-	 * Make sure we are not reinitializing a held lock:
-	 */
-	debug_check_no_locks_freed((void *)lock, sizeof(*lock));
-	lockdep_init_map(&lock->dep_map, name, key, 0);
-#endif
-	lock->raw_lock = (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED;
-	lock->magic = SPINLOCK_MAGIC;
-	lock->owner = SPINLOCK_OWNER_INIT;
-	lock->owner_cpu = -1;
-}
-
-EXPORT_SYMBOL(__raw_spin_lock_init);
-
-void __rwlock_init(rwlock_t *lock, const char *name,
-		   struct lock_class_key *key)
-{
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-	/*
-	 * Make sure we are not reinitializing a held lock:
-	 */
-	debug_check_no_locks_freed((void *)lock, sizeof(*lock));
-	lockdep_init_map(&lock->dep_map, name, key, 0);
-#endif
-	lock->raw_lock = (arch_rwlock_t) __ARCH_RW_LOCK_UNLOCKED;
-	lock->magic = RWLOCK_MAGIC;
-	lock->owner = SPINLOCK_OWNER_INIT;
-	lock->owner_cpu = -1;
-}
-
-EXPORT_SYMBOL(__rwlock_init);
-
-static void spin_dump(raw_spinlock_t *lock, const char *msg)
-{
-	struct task_struct *owner = NULL;
-
-	if (lock->owner && lock->owner != SPINLOCK_OWNER_INIT)
-		owner = lock->owner;
-	printk(KERN_EMERG "BUG: spinlock %s on CPU#%d, %s/%d\n",
-		msg, raw_smp_processor_id(),
-		current->comm, task_pid_nr(current));
-	printk(KERN_EMERG " lock: %pS, .magic: %08x, .owner: %s/%d, "
-			".owner_cpu: %d\n",
-		lock, lock->magic,
-		owner ? owner->comm : "<none>",
-		owner ? task_pid_nr(owner) : -1,
-		lock->owner_cpu);
-	dump_stack();
-}
-
-static void spin_bug(raw_spinlock_t *lock, const char *msg)
-{
-	if (!debug_locks_off())
-		return;
-
-	spin_dump(lock, msg);
-}
-
-#define SPIN_BUG_ON(cond, lock, msg) if (unlikely(cond)) spin_bug(lock, msg)
-
-static inline void
-debug_spin_lock_before(raw_spinlock_t *lock)
-{
-	SPIN_BUG_ON(lock->magic != SPINLOCK_MAGIC, lock, "bad magic");
-	SPIN_BUG_ON(lock->owner == current, lock, "recursion");
-	SPIN_BUG_ON(lock->owner_cpu == raw_smp_processor_id(),
-							lock, "cpu recursion");
-}
-
-static inline void debug_spin_lock_after(raw_spinlock_t *lock)
-{
-	lock->owner_cpu = raw_smp_processor_id();
-	lock->owner = current;
-}
-
-static inline void debug_spin_unlock(raw_spinlock_t *lock)
-{
-	SPIN_BUG_ON(lock->magic != SPINLOCK_MAGIC, lock, "bad magic");
-	SPIN_BUG_ON(!raw_spin_is_locked(lock), lock, "already unlocked");
-	SPIN_BUG_ON(lock->owner != current, lock, "wrong owner");
-	SPIN_BUG_ON(lock->owner_cpu != raw_smp_processor_id(),
-							lock, "wrong CPU");
-	lock->owner = SPINLOCK_OWNER_INIT;
-	lock->owner_cpu = -1;
-}
-
-static void __spin_lock_debug(raw_spinlock_t *lock)
-{
-	u64 i;
-	u64 loops = loops_per_jiffy * HZ;
-
-	for (i = 0; i < loops; i++) {
-		if (arch_spin_trylock(&lock->raw_lock))
-			return;
-		__delay(1);
-	}
-	/* lockup suspected: */
-	spin_dump(lock, "lockup suspected");
-#ifdef CONFIG_SMP
-	trigger_all_cpu_backtrace();
-#endif
-
-	/*
-	 * The trylock above was causing a livelock.  Give the lower level arch
-	 * specific lock code a chance to acquire the lock. We have already
-	 * printed a warning/backtrace at this point. The non-debug arch
-	 * specific code might actually succeed in acquiring the lock.  If it is
-	 * not successful, the end-result is the same - there is no forward
-	 * progress.
-	 */
-	arch_spin_lock(&lock->raw_lock);
-}
-
-void do_raw_spin_lock(raw_spinlock_t *lock)
-{
-	debug_spin_lock_before(lock);
-	if (unlikely(!arch_spin_trylock(&lock->raw_lock)))
-		__spin_lock_debug(lock);
-	debug_spin_lock_after(lock);
-}
-
-int do_raw_spin_trylock(raw_spinlock_t *lock)
-{
-	int ret = arch_spin_trylock(&lock->raw_lock);
-
-	if (ret)
-		debug_spin_lock_after(lock);
-#ifndef CONFIG_SMP
-	/*
-	 * Must not happen on UP:
-	 */
-	SPIN_BUG_ON(!ret, lock, "trylock failure on UP");
-#endif
-	return ret;
-}
-
-void do_raw_spin_unlock(raw_spinlock_t *lock)
-{
-	debug_spin_unlock(lock);
-	arch_spin_unlock(&lock->raw_lock);
-}
-
-static void rwlock_bug(rwlock_t *lock, const char *msg)
-{
-	if (!debug_locks_off())
-		return;
-
-	printk(KERN_EMERG "BUG: rwlock %s on CPU#%d, %s/%d, %p\n",
-		msg, raw_smp_processor_id(), current->comm,
-		task_pid_nr(current), lock);
-	dump_stack();
-}
-
-#define RWLOCK_BUG_ON(cond, lock, msg) if (unlikely(cond)) rwlock_bug(lock, msg)
-
-#if 0		/* __write_lock_debug() can lock up - maybe this can too? */
-static void __read_lock_debug(rwlock_t *lock)
-{
-	u64 i;
-	u64 loops = loops_per_jiffy * HZ;
-	int print_once = 1;
-
-	for (;;) {
-		for (i = 0; i < loops; i++) {
-			if (arch_read_trylock(&lock->raw_lock))
-				return;
-			__delay(1);
-		}
-		/* lockup suspected: */
-		if (print_once) {
-			print_once = 0;
-			printk(KERN_EMERG "BUG: read-lock lockup on CPU#%d, "
-					"%s/%d, %p\n",
-				raw_smp_processor_id(), current->comm,
-				current->pid, lock);
-			dump_stack();
-		}
-	}
-}
-#endif
-
-void do_raw_read_lock(rwlock_t *lock)
-{
-	RWLOCK_BUG_ON(lock->magic != RWLOCK_MAGIC, lock, "bad magic");
-	arch_read_lock(&lock->raw_lock);
-}
-
-int do_raw_read_trylock(rwlock_t *lock)
-{
-	int ret = arch_read_trylock(&lock->raw_lock);
-
-#ifndef CONFIG_SMP
-	/*
-	 * Must not happen on UP:
-	 */
-	RWLOCK_BUG_ON(!ret, lock, "trylock failure on UP");
-#endif
-	return ret;
-}
-
-void do_raw_read_unlock(rwlock_t *lock)
-{
-	RWLOCK_BUG_ON(lock->magic != RWLOCK_MAGIC, lock, "bad magic");
-	arch_read_unlock(&lock->raw_lock);
-}
-
-static inline void debug_write_lock_before(rwlock_t *lock)
-{
-	RWLOCK_BUG_ON(lock->magic != RWLOCK_MAGIC, lock, "bad magic");
-	RWLOCK_BUG_ON(lock->owner == current, lock, "recursion");
-	RWLOCK_BUG_ON(lock->owner_cpu == raw_smp_processor_id(),
-							lock, "cpu recursion");
-}
-
-static inline void debug_write_lock_after(rwlock_t *lock)
-{
-	lock->owner_cpu = raw_smp_processor_id();
-	lock->owner = current;
-}
-
-static inline void debug_write_unlock(rwlock_t *lock)
-{
-	RWLOCK_BUG_ON(lock->magic != RWLOCK_MAGIC, lock, "bad magic");
-	RWLOCK_BUG_ON(lock->owner != current, lock, "wrong owner");
-	RWLOCK_BUG_ON(lock->owner_cpu != raw_smp_processor_id(),
-							lock, "wrong CPU");
-	lock->owner = SPINLOCK_OWNER_INIT;
-	lock->owner_cpu = -1;
-}
-
-#if 0		/* This can cause lockups */
-static void __write_lock_debug(rwlock_t *lock)
-{
-	u64 i;
-	u64 loops = loops_per_jiffy * HZ;
-	int print_once = 1;
-
-	for (;;) {
-		for (i = 0; i < loops; i++) {
-			if (arch_write_trylock(&lock->raw_lock))
-				return;
-			__delay(1);
-		}
-		/* lockup suspected: */
-		if (print_once) {
-			print_once = 0;
-			printk(KERN_EMERG "BUG: write-lock lockup on CPU#%d, "
-					"%s/%d, %p\n",
-				raw_smp_processor_id(), current->comm,
-				current->pid, lock);
-			dump_stack();
-		}
-	}
-}
-#endif
-
-void do_raw_write_lock(rwlock_t *lock)
-{
-	debug_write_lock_before(lock);
-	arch_write_lock(&lock->raw_lock);
-	debug_write_lock_after(lock);
-}
-
-int do_raw_write_trylock(rwlock_t *lock)
-{
-	int ret = arch_write_trylock(&lock->raw_lock);
-
-	if (ret)
-		debug_write_lock_after(lock);
-#ifndef CONFIG_SMP
-	/*
-	 * Must not happen on UP:
-	 */
-	RWLOCK_BUG_ON(!ret, lock, "trylock failure on UP");
-#endif
-	return ret;
-}
-
-void do_raw_write_unlock(rwlock_t *lock)
-{
-	debug_write_unlock(lock);
-	arch_write_unlock(&lock->raw_lock);
-}
-- 
cgit 


From e25a64c4017e3a3cda17454b040737e410a12991 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 31 Oct 2013 18:16:43 +0100
Subject: locking: Move the semaphore core to kernel/locking/

Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-vmw5sf6vzmua1z6nx1cg69h2@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/Makefile            |   2 +-
 kernel/locking/Makefile    |   2 +-
 kernel/locking/semaphore.c | 263 +++++++++++++++++++++++++++++++++++++++++++++
 kernel/semaphore.c         | 263 ---------------------------------------------
 4 files changed, 265 insertions(+), 265 deletions(-)
 create mode 100644 kernel/locking/semaphore.c
 delete mode 100644 kernel/semaphore.c

diff --git a/kernel/Makefile b/kernel/Makefile
index 4bce165dce5d..45e5ae26dc03 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -8,7 +8,7 @@ obj-y     = fork.o exec_domain.o panic.o \
 	    signal.o sys.o kmod.o workqueue.o pid.o task_work.o \
 	    extable.o params.o posix-timers.o \
 	    kthread.o sys_ni.o posix-cpu-timers.o \
-	    hrtimer.o rwsem.o nsproxy.o semaphore.o \
+	    hrtimer.o rwsem.o nsproxy.o \
 	    notifier.o ksysfs.o cred.o reboot.o \
 	    async.o range.o groups.o lglock.o smpboot.o
 
diff --git a/kernel/locking/Makefile b/kernel/locking/Makefile
index 674d2152d10f..5978fddf1412 100644
--- a/kernel/locking/Makefile
+++ b/kernel/locking/Makefile
@@ -1,5 +1,5 @@
 
-obj-y += mutex.o
+obj-y += mutex.o semaphore.o
 
 ifdef CONFIG_FUNCTION_TRACER
 CFLAGS_REMOVE_lockdep.o = -pg
diff --git a/kernel/locking/semaphore.c b/kernel/locking/semaphore.c
new file mode 100644
index 000000000000..6815171a4fff
--- /dev/null
+++ b/kernel/locking/semaphore.c
@@ -0,0 +1,263 @@
+/*
+ * Copyright (c) 2008 Intel Corporation
+ * Author: Matthew Wilcox <willy@linux.intel.com>
+ *
+ * Distributed under the terms of the GNU GPL, version 2
+ *
+ * This file implements counting semaphores.
+ * A counting semaphore may be acquired 'n' times before sleeping.
+ * See mutex.c for single-acquisition sleeping locks which enforce
+ * rules which allow code to be debugged more easily.
+ */
+
+/*
+ * Some notes on the implementation:
+ *
+ * The spinlock controls access to the other members of the semaphore.
+ * down_trylock() and up() can be called from interrupt context, so we
+ * have to disable interrupts when taking the lock.  It turns out various
+ * parts of the kernel expect to be able to use down() on a semaphore in
+ * interrupt context when they know it will succeed, so we have to use
+ * irqsave variants for down(), down_interruptible() and down_killable()
+ * too.
+ *
+ * The ->count variable represents how many more tasks can acquire this
+ * semaphore.  If it's zero, there may be tasks waiting on the wait_list.
+ */
+
+#include <linux/compiler.h>
+#include <linux/kernel.h>
+#include <linux/export.h>
+#include <linux/sched.h>
+#include <linux/semaphore.h>
+#include <linux/spinlock.h>
+#include <linux/ftrace.h>
+
+static noinline void __down(struct semaphore *sem);
+static noinline int __down_interruptible(struct semaphore *sem);
+static noinline int __down_killable(struct semaphore *sem);
+static noinline int __down_timeout(struct semaphore *sem, long jiffies);
+static noinline void __up(struct semaphore *sem);
+
+/**
+ * down - acquire the semaphore
+ * @sem: the semaphore to be acquired
+ *
+ * Acquires the semaphore.  If no more tasks are allowed to acquire the
+ * semaphore, calling this function will put the task to sleep until the
+ * semaphore is released.
+ *
+ * Use of this function is deprecated, please use down_interruptible() or
+ * down_killable() instead.
+ */
+void down(struct semaphore *sem)
+{
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&sem->lock, flags);
+	if (likely(sem->count > 0))
+		sem->count--;
+	else
+		__down(sem);
+	raw_spin_unlock_irqrestore(&sem->lock, flags);
+}
+EXPORT_SYMBOL(down);
+
+/**
+ * down_interruptible - acquire the semaphore unless interrupted
+ * @sem: the semaphore to be acquired
+ *
+ * Attempts to acquire the semaphore.  If no more tasks are allowed to
+ * acquire the semaphore, calling this function will put the task to sleep.
+ * If the sleep is interrupted by a signal, this function will return -EINTR.
+ * If the semaphore is successfully acquired, this function returns 0.
+ */
+int down_interruptible(struct semaphore *sem)
+{
+	unsigned long flags;
+	int result = 0;
+
+	raw_spin_lock_irqsave(&sem->lock, flags);
+	if (likely(sem->count > 0))
+		sem->count--;
+	else
+		result = __down_interruptible(sem);
+	raw_spin_unlock_irqrestore(&sem->lock, flags);
+
+	return result;
+}
+EXPORT_SYMBOL(down_interruptible);
+
+/**
+ * down_killable - acquire the semaphore unless killed
+ * @sem: the semaphore to be acquired
+ *
+ * Attempts to acquire the semaphore.  If no more tasks are allowed to
+ * acquire the semaphore, calling this function will put the task to sleep.
+ * If the sleep is interrupted by a fatal signal, this function will return
+ * -EINTR.  If the semaphore is successfully acquired, this function returns
+ * 0.
+ */
+int down_killable(struct semaphore *sem)
+{
+	unsigned long flags;
+	int result = 0;
+
+	raw_spin_lock_irqsave(&sem->lock, flags);
+	if (likely(sem->count > 0))
+		sem->count--;
+	else
+		result = __down_killable(sem);
+	raw_spin_unlock_irqrestore(&sem->lock, flags);
+
+	return result;
+}
+EXPORT_SYMBOL(down_killable);
+
+/**
+ * down_trylock - try to acquire the semaphore, without waiting
+ * @sem: the semaphore to be acquired
+ *
+ * Try to acquire the semaphore atomically.  Returns 0 if the semaphore has
+ * been acquired successfully or 1 if it it cannot be acquired.
+ *
+ * NOTE: This return value is inverted from both spin_trylock and
+ * mutex_trylock!  Be careful about this when converting code.
+ *
+ * Unlike mutex_trylock, this function can be used from interrupt context,
+ * and the semaphore can be released by any task or interrupt.
+ */
+int down_trylock(struct semaphore *sem)
+{
+	unsigned long flags;
+	int count;
+
+	raw_spin_lock_irqsave(&sem->lock, flags);
+	count = sem->count - 1;
+	if (likely(count >= 0))
+		sem->count = count;
+	raw_spin_unlock_irqrestore(&sem->lock, flags);
+
+	return (count < 0);
+}
+EXPORT_SYMBOL(down_trylock);
+
+/**
+ * down_timeout - acquire the semaphore within a specified time
+ * @sem: the semaphore to be acquired
+ * @jiffies: how long to wait before failing
+ *
+ * Attempts to acquire the semaphore.  If no more tasks are allowed to
+ * acquire the semaphore, calling this function will put the task to sleep.
+ * If the semaphore is not released within the specified number of jiffies,
+ * this function returns -ETIME.  It returns 0 if the semaphore was acquired.
+ */
+int down_timeout(struct semaphore *sem, long jiffies)
+{
+	unsigned long flags;
+	int result = 0;
+
+	raw_spin_lock_irqsave(&sem->lock, flags);
+	if (likely(sem->count > 0))
+		sem->count--;
+	else
+		result = __down_timeout(sem, jiffies);
+	raw_spin_unlock_irqrestore(&sem->lock, flags);
+
+	return result;
+}
+EXPORT_SYMBOL(down_timeout);
+
+/**
+ * up - release the semaphore
+ * @sem: the semaphore to release
+ *
+ * Release the semaphore.  Unlike mutexes, up() may be called from any
+ * context and even by tasks which have never called down().
+ */
+void up(struct semaphore *sem)
+{
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&sem->lock, flags);
+	if (likely(list_empty(&sem->wait_list)))
+		sem->count++;
+	else
+		__up(sem);
+	raw_spin_unlock_irqrestore(&sem->lock, flags);
+}
+EXPORT_SYMBOL(up);
+
+/* Functions for the contended case */
+
+struct semaphore_waiter {
+	struct list_head list;
+	struct task_struct *task;
+	bool up;
+};
+
+/*
+ * Because this function is inlined, the 'state' parameter will be
+ * constant, and thus optimised away by the compiler.  Likewise the
+ * 'timeout' parameter for the cases without timeouts.
+ */
+static inline int __sched __down_common(struct semaphore *sem, long state,
+								long timeout)
+{
+	struct task_struct *task = current;
+	struct semaphore_waiter waiter;
+
+	list_add_tail(&waiter.list, &sem->wait_list);
+	waiter.task = task;
+	waiter.up = false;
+
+	for (;;) {
+		if (signal_pending_state(state, task))
+			goto interrupted;
+		if (unlikely(timeout <= 0))
+			goto timed_out;
+		__set_task_state(task, state);
+		raw_spin_unlock_irq(&sem->lock);
+		timeout = schedule_timeout(timeout);
+		raw_spin_lock_irq(&sem->lock);
+		if (waiter.up)
+			return 0;
+	}
+
+ timed_out:
+	list_del(&waiter.list);
+	return -ETIME;
+
+ interrupted:
+	list_del(&waiter.list);
+	return -EINTR;
+}
+
+static noinline void __sched __down(struct semaphore *sem)
+{
+	__down_common(sem, TASK_UNINTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT);
+}
+
+static noinline int __sched __down_interruptible(struct semaphore *sem)
+{
+	return __down_common(sem, TASK_INTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT);
+}
+
+static noinline int __sched __down_killable(struct semaphore *sem)
+{
+	return __down_common(sem, TASK_KILLABLE, MAX_SCHEDULE_TIMEOUT);
+}
+
+static noinline int __sched __down_timeout(struct semaphore *sem, long jiffies)
+{
+	return __down_common(sem, TASK_UNINTERRUPTIBLE, jiffies);
+}
+
+static noinline void __sched __up(struct semaphore *sem)
+{
+	struct semaphore_waiter *waiter = list_first_entry(&sem->wait_list,
+						struct semaphore_waiter, list);
+	list_del(&waiter->list);
+	waiter->up = true;
+	wake_up_process(waiter->task);
+}
diff --git a/kernel/semaphore.c b/kernel/semaphore.c
deleted file mode 100644
index 6815171a4fff..000000000000
--- a/kernel/semaphore.c
+++ /dev/null
@@ -1,263 +0,0 @@
-/*
- * Copyright (c) 2008 Intel Corporation
- * Author: Matthew Wilcox <willy@linux.intel.com>
- *
- * Distributed under the terms of the GNU GPL, version 2
- *
- * This file implements counting semaphores.
- * A counting semaphore may be acquired 'n' times before sleeping.
- * See mutex.c for single-acquisition sleeping locks which enforce
- * rules which allow code to be debugged more easily.
- */
-
-/*
- * Some notes on the implementation:
- *
- * The spinlock controls access to the other members of the semaphore.
- * down_trylock() and up() can be called from interrupt context, so we
- * have to disable interrupts when taking the lock.  It turns out various
- * parts of the kernel expect to be able to use down() on a semaphore in
- * interrupt context when they know it will succeed, so we have to use
- * irqsave variants for down(), down_interruptible() and down_killable()
- * too.
- *
- * The ->count variable represents how many more tasks can acquire this
- * semaphore.  If it's zero, there may be tasks waiting on the wait_list.
- */
-
-#include <linux/compiler.h>
-#include <linux/kernel.h>
-#include <linux/export.h>
-#include <linux/sched.h>
-#include <linux/semaphore.h>
-#include <linux/spinlock.h>
-#include <linux/ftrace.h>
-
-static noinline void __down(struct semaphore *sem);
-static noinline int __down_interruptible(struct semaphore *sem);
-static noinline int __down_killable(struct semaphore *sem);
-static noinline int __down_timeout(struct semaphore *sem, long jiffies);
-static noinline void __up(struct semaphore *sem);
-
-/**
- * down - acquire the semaphore
- * @sem: the semaphore to be acquired
- *
- * Acquires the semaphore.  If no more tasks are allowed to acquire the
- * semaphore, calling this function will put the task to sleep until the
- * semaphore is released.
- *
- * Use of this function is deprecated, please use down_interruptible() or
- * down_killable() instead.
- */
-void down(struct semaphore *sem)
-{
-	unsigned long flags;
-
-	raw_spin_lock_irqsave(&sem->lock, flags);
-	if (likely(sem->count > 0))
-		sem->count--;
-	else
-		__down(sem);
-	raw_spin_unlock_irqrestore(&sem->lock, flags);
-}
-EXPORT_SYMBOL(down);
-
-/**
- * down_interruptible - acquire the semaphore unless interrupted
- * @sem: the semaphore to be acquired
- *
- * Attempts to acquire the semaphore.  If no more tasks are allowed to
- * acquire the semaphore, calling this function will put the task to sleep.
- * If the sleep is interrupted by a signal, this function will return -EINTR.
- * If the semaphore is successfully acquired, this function returns 0.
- */
-int down_interruptible(struct semaphore *sem)
-{
-	unsigned long flags;
-	int result = 0;
-
-	raw_spin_lock_irqsave(&sem->lock, flags);
-	if (likely(sem->count > 0))
-		sem->count--;
-	else
-		result = __down_interruptible(sem);
-	raw_spin_unlock_irqrestore(&sem->lock, flags);
-
-	return result;
-}
-EXPORT_SYMBOL(down_interruptible);
-
-/**
- * down_killable - acquire the semaphore unless killed
- * @sem: the semaphore to be acquired
- *
- * Attempts to acquire the semaphore.  If no more tasks are allowed to
- * acquire the semaphore, calling this function will put the task to sleep.
- * If the sleep is interrupted by a fatal signal, this function will return
- * -EINTR.  If the semaphore is successfully acquired, this function returns
- * 0.
- */
-int down_killable(struct semaphore *sem)
-{
-	unsigned long flags;
-	int result = 0;
-
-	raw_spin_lock_irqsave(&sem->lock, flags);
-	if (likely(sem->count > 0))
-		sem->count--;
-	else
-		result = __down_killable(sem);
-	raw_spin_unlock_irqrestore(&sem->lock, flags);
-
-	return result;
-}
-EXPORT_SYMBOL(down_killable);
-
-/**
- * down_trylock - try to acquire the semaphore, without waiting
- * @sem: the semaphore to be acquired
- *
- * Try to acquire the semaphore atomically.  Returns 0 if the semaphore has
- * been acquired successfully or 1 if it it cannot be acquired.
- *
- * NOTE: This return value is inverted from both spin_trylock and
- * mutex_trylock!  Be careful about this when converting code.
- *
- * Unlike mutex_trylock, this function can be used from interrupt context,
- * and the semaphore can be released by any task or interrupt.
- */
-int down_trylock(struct semaphore *sem)
-{
-	unsigned long flags;
-	int count;
-
-	raw_spin_lock_irqsave(&sem->lock, flags);
-	count = sem->count - 1;
-	if (likely(count >= 0))
-		sem->count = count;
-	raw_spin_unlock_irqrestore(&sem->lock, flags);
-
-	return (count < 0);
-}
-EXPORT_SYMBOL(down_trylock);
-
-/**
- * down_timeout - acquire the semaphore within a specified time
- * @sem: the semaphore to be acquired
- * @jiffies: how long to wait before failing
- *
- * Attempts to acquire the semaphore.  If no more tasks are allowed to
- * acquire the semaphore, calling this function will put the task to sleep.
- * If the semaphore is not released within the specified number of jiffies,
- * this function returns -ETIME.  It returns 0 if the semaphore was acquired.
- */
-int down_timeout(struct semaphore *sem, long jiffies)
-{
-	unsigned long flags;
-	int result = 0;
-
-	raw_spin_lock_irqsave(&sem->lock, flags);
-	if (likely(sem->count > 0))
-		sem->count--;
-	else
-		result = __down_timeout(sem, jiffies);
-	raw_spin_unlock_irqrestore(&sem->lock, flags);
-
-	return result;
-}
-EXPORT_SYMBOL(down_timeout);
-
-/**
- * up - release the semaphore
- * @sem: the semaphore to release
- *
- * Release the semaphore.  Unlike mutexes, up() may be called from any
- * context and even by tasks which have never called down().
- */
-void up(struct semaphore *sem)
-{
-	unsigned long flags;
-
-	raw_spin_lock_irqsave(&sem->lock, flags);
-	if (likely(list_empty(&sem->wait_list)))
-		sem->count++;
-	else
-		__up(sem);
-	raw_spin_unlock_irqrestore(&sem->lock, flags);
-}
-EXPORT_SYMBOL(up);
-
-/* Functions for the contended case */
-
-struct semaphore_waiter {
-	struct list_head list;
-	struct task_struct *task;
-	bool up;
-};
-
-/*
- * Because this function is inlined, the 'state' parameter will be
- * constant, and thus optimised away by the compiler.  Likewise the
- * 'timeout' parameter for the cases without timeouts.
- */
-static inline int __sched __down_common(struct semaphore *sem, long state,
-								long timeout)
-{
-	struct task_struct *task = current;
-	struct semaphore_waiter waiter;
-
-	list_add_tail(&waiter.list, &sem->wait_list);
-	waiter.task = task;
-	waiter.up = false;
-
-	for (;;) {
-		if (signal_pending_state(state, task))
-			goto interrupted;
-		if (unlikely(timeout <= 0))
-			goto timed_out;
-		__set_task_state(task, state);
-		raw_spin_unlock_irq(&sem->lock);
-		timeout = schedule_timeout(timeout);
-		raw_spin_lock_irq(&sem->lock);
-		if (waiter.up)
-			return 0;
-	}
-
- timed_out:
-	list_del(&waiter.list);
-	return -ETIME;
-
- interrupted:
-	list_del(&waiter.list);
-	return -EINTR;
-}
-
-static noinline void __sched __down(struct semaphore *sem)
-{
-	__down_common(sem, TASK_UNINTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT);
-}
-
-static noinline int __sched __down_interruptible(struct semaphore *sem)
-{
-	return __down_common(sem, TASK_INTERRUPTIBLE, MAX_SCHEDULE_TIMEOUT);
-}
-
-static noinline int __sched __down_killable(struct semaphore *sem)
-{
-	return __down_common(sem, TASK_KILLABLE, MAX_SCHEDULE_TIMEOUT);
-}
-
-static noinline int __sched __down_timeout(struct semaphore *sem, long jiffies)
-{
-	return __down_common(sem, TASK_UNINTERRUPTIBLE, jiffies);
-}
-
-static noinline void __sched __up(struct semaphore *sem)
-{
-	struct semaphore_waiter *waiter = list_first_entry(&sem->wait_list,
-						struct semaphore_waiter, list);
-	list_del(&waiter->list);
-	waiter->up = true;
-	wake_up_process(waiter->task);
-}
-- 
cgit 


From 8fe7b65ab4656e5db466a7d98b1fd48ff83b2c64 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 10:31:07 +0100
Subject: ALSA: hda - Apply GPIO setup for MacBooks with CS4208

Apply the existing GPIO0 fixup as default for MacBooks with CS4208
codec.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=64401
Cc: <stable@vger.kernel.org> [v3.12+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_cirrus.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c
index 38d073ed4bcc..1ce1f4067b15 100644
--- a/sound/pci/hda/patch_cirrus.c
+++ b/sound/pci/hda/patch_cirrus.c
@@ -611,6 +611,7 @@ static const struct snd_pci_quirk cs4208_fixup_tbl[] = {
 	/* codec SSID */
 	SND_PCI_QUIRK(0x106b, 0x7100, "MacBookAir 6,1", CS4208_MBA6),
 	SND_PCI_QUIRK(0x106b, 0x7200, "MacBookAir 6,2", CS4208_MBA6),
+	SND_PCI_QUIRK_VENDOR(0x106b, "Apple", CS4208_GPIO0),
 	{} /* terminator */
 };
 
-- 
cgit 


From a477c8594bee3bff639739c48258a8c737ab721e Mon Sep 17 00:00:00 2001
From: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
Date: Tue, 5 Nov 2013 02:15:48 +0900
Subject: x86/cpu: Always print SMP information in /proc/cpuinfo

Currently show_cpuinfo_core() displays cpu core information only if
the number of threads per a whole cores is 2 or larger.

However, this condition doesn't care about the number of
sockets. For example, this condition doesn't hold on systems
with two logical cpus consisting of two sockets and a single
core on each socket - yet the topology information would be
interesting to see in that case as well.

I don't know whether or not there are processors in real world
by which such configurations are possible, but at least on
vitual machine environments, such configuration can occur,
typically when no explicit SMP information is provided in
advance.

For example, on qemu/KVM, SMP information is specified via -smp
command-line option, more specifically, its syntax is:

  -smp n[,cores=cores][,threads=threads][,sockets=sockets][,maxcpus=maxcpus]

If this is not specified, qemu tells configuration with
n-sockets, 1-core and 1-thread to the guest machine, on which
guest, MP information is not displayed in /proc/cpuinfo.

I saw this situation on VMWare guest environment, too.

To fix this issue, this patch simply removes the condition
because this information is useful even if there's only 1
thread.

Signed-off-by: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: H. Peter Anvin <hpa@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/5277D644.4090707@jp.fujitsu.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/cpu/proc.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/arch/x86/kernel/cpu/proc.c b/arch/x86/kernel/cpu/proc.c
index aee6317b902f..06fe3ed8b851 100644
--- a/arch/x86/kernel/cpu/proc.c
+++ b/arch/x86/kernel/cpu/proc.c
@@ -11,15 +11,12 @@ static void show_cpuinfo_core(struct seq_file *m, struct cpuinfo_x86 *c,
 			      unsigned int cpu)
 {
 #ifdef CONFIG_SMP
-	if (c->x86_max_cores * smp_num_siblings > 1) {
-		seq_printf(m, "physical id\t: %d\n", c->phys_proc_id);
-		seq_printf(m, "siblings\t: %d\n",
-			   cpumask_weight(cpu_core_mask(cpu)));
-		seq_printf(m, "core id\t\t: %d\n", c->cpu_core_id);
-		seq_printf(m, "cpu cores\t: %d\n", c->booted_cores);
-		seq_printf(m, "apicid\t\t: %d\n", c->apicid);
-		seq_printf(m, "initial apicid\t: %d\n", c->initial_apicid);
-	}
+	seq_printf(m, "physical id\t: %d\n", c->phys_proc_id);
+	seq_printf(m, "siblings\t: %d\n", cpumask_weight(cpu_core_mask(cpu)));
+	seq_printf(m, "core id\t\t: %d\n", c->cpu_core_id);
+	seq_printf(m, "cpu cores\t: %d\n", c->booted_cores);
+	seq_printf(m, "apicid\t\t: %d\n", c->apicid);
+	seq_printf(m, "initial apicid\t: %d\n", c->initial_apicid);
 #endif
 }
 
-- 
cgit 


From 791b3f596e2331f80244cc8532a25b48d45f126d Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 6 Nov 2013 08:09:35 +0100
Subject: ALSA: intel8x0: Fix chmap application

The playback chmap for multi-channel stream hasn't been properly added
to intel8x0 devices due to the wrong condition.

Reported-by: Raymond Yau <superquad.vortex2@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/intel8x0.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/sound/pci/intel8x0.c b/sound/pci/intel8x0.c
index 59c8aaebb91e..08d8733604a2 100644
--- a/sound/pci/intel8x0.c
+++ b/sound/pci/intel8x0.c
@@ -1541,17 +1541,16 @@ static int snd_intel8x0_pcm1(struct intel8x0 *chip, int device,
 					      snd_dma_pci_data(chip->pci),
 					      rec->prealloc_size, rec->prealloc_max_size);
 
-	if (rec->ac97_idx == ICHD_PCMOUT && rec->playback_ops) {
+	if (rec->playback_ops &&
+	    rec->playback_ops->open == snd_intel8x0_playback_open) {
 		struct snd_pcm_chmap *chmap;
 		int chs = 2;
-		if (rec->ac97_idx == ICHD_PCMOUT) {
-			if (chip->multi8)
-				chs = 8;
-			else if (chip->multi6)
-				chs = 6;
-			else if (chip->multi4)
-				chs = 4;
-		}
+		if (chip->multi8)
+			chs = 8;
+		else if (chip->multi6)
+			chs = 6;
+		else if (chip->multi4)
+			chs = 4;
 		err = snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK,
 					     snd_pcm_alt_chmaps, chs, 0,
 					     &chmap);
-- 
cgit 


From bb61ccc7dbcbc1ed4600bef5610d99ec91fd7032 Mon Sep 17 00:00:00 2001
From: Josh Boyer <jwboyer@redhat.com>
Date: Tue, 5 Nov 2013 09:37:29 -0500
Subject: x86/cpu: Allow higher NR_CPUS values

The current range for SMP configs is 2 - 512 CPUs, or a full
4096 in the case of MAXSMP.  There are machines that have 1024
CPUs in them today and configuring a kernel for that means you
are forced to set MAXSMP.  This adds additional unnecessary
overhead.  While that overhead might be considered tiny for
large machines, it isn't necessarily so if you are building a
kernel that runs across a wide variety of machines.

To cover the range of more common machines today, we allow
NR_CPUS to be up to 4096 when CPUMASK_OFFSTACK is enabled.

Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Cc: prarit@redhat.com
Cc: Russ Anderson <rja@sgi.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20131105143728.GJ9944@hansolo.jdub.homelinux.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/Kconfig | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index f67e839f06c8..f03e428112eb 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -825,14 +825,16 @@ config MAXSMP
 config NR_CPUS
 	int "Maximum number of CPUs" if SMP && !MAXSMP
 	range 2 8 if SMP && X86_32 && !X86_BIGSMP
-	range 2 512 if SMP && !MAXSMP
+	range 2 512 if SMP && !MAXSMP && !CPUMASK_OFFSTACK
+	range 2 4096 if SMP && !MAXSMP && CPUMASK_OFFSTACK && X86_64
 	default "1" if !SMP
 	default "4096" if MAXSMP
 	default "32" if SMP && (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000)
 	default "8" if SMP
 	---help---
 	  This allows you to specify the maximum number of CPUs which this
-	  kernel will support.  The maximum supported value is 512 and the
+	  kernel will support.  If CPUMASK_OFFSTACK is enabled, the maximum
+	  supported value is 4096, otherwise the maximum value is 512.  The
 	  minimum value which makes sense is 2.
 
 	  This is purely to save memory - each supported CPU adds
-- 
cgit 


From b53b5eda8194214928c8243d711a75dbf51809fc Mon Sep 17 00:00:00 2001
From: Josh Boyer <jwboyer@redhat.com>
Date: Tue, 5 Nov 2013 09:38:16 -0500
Subject: x86/cpu: Increase max CPU count to 8192

The MAXSMP option is intended to enable silly large numbers of
CPUs for testing purposes.  The current value of 4096 isn't very
silly any longer as there are actual SGI machines that approach
6096 CPUs when taking HT into account.

Increase the value to a nice round 8192 to account for this and
allow for short term future increases.

Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Cc: prarit@redhat.com
Cc: Russ Anderson <rja@sgi.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20131105143816.GK9944@hansolo.jdub.homelinux.org
[ Tweaked it so that MAXSMP simply sets the maximum of the normal range. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index f03e428112eb..805469a57d9d 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -826,9 +826,9 @@ config NR_CPUS
 	int "Maximum number of CPUs" if SMP && !MAXSMP
 	range 2 8 if SMP && X86_32 && !X86_BIGSMP
 	range 2 512 if SMP && !MAXSMP && !CPUMASK_OFFSTACK
-	range 2 4096 if SMP && !MAXSMP && CPUMASK_OFFSTACK && X86_64
+	range 2 8192 if SMP && !MAXSMP && CPUMASK_OFFSTACK && X86_64
 	default "1" if !SMP
-	default "4096" if MAXSMP
+	default "8192" if MAXSMP
 	default "32" if SMP && (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000)
 	default "8" if SMP
 	---help---
-- 
cgit 


From 80f5b5e700fa9c58480eafce0d47367bafb70006 Mon Sep 17 00:00:00 2001
From: Gleb Natapov <gleb@redhat.com>
Date: Tue, 5 Nov 2013 16:04:18 +0200
Subject: KVM: remove vm mmap method

It was used in conjunction with KVM_SET_MEMORY_REGION ioctl which was
removed by b74a07beed0 in 2010, QEMU stopped using it in 2008, so
it is time to remove the code finally.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 virt/kvm/kvm_main.c | 32 --------------------------------
 1 file changed, 32 deletions(-)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 7a317a7f9025..10015d6e4d08 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2528,44 +2528,12 @@ out:
 }
 #endif
 
-static int kvm_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
-{
-	struct page *page[1];
-	unsigned long addr;
-	int npages;
-	gfn_t gfn = vmf->pgoff;
-	struct kvm *kvm = vma->vm_file->private_data;
-
-	addr = gfn_to_hva(kvm, gfn);
-	if (kvm_is_error_hva(addr))
-		return VM_FAULT_SIGBUS;
-
-	npages = get_user_pages(current, current->mm, addr, 1, 1, 0, page,
-				NULL);
-	if (unlikely(npages != 1))
-		return VM_FAULT_SIGBUS;
-
-	vmf->page = page[0];
-	return 0;
-}
-
-static const struct vm_operations_struct kvm_vm_vm_ops = {
-	.fault = kvm_vm_fault,
-};
-
-static int kvm_vm_mmap(struct file *file, struct vm_area_struct *vma)
-{
-	vma->vm_ops = &kvm_vm_vm_ops;
-	return 0;
-}
-
 static struct file_operations kvm_vm_fops = {
 	.release        = kvm_vm_release,
 	.unlocked_ioctl = kvm_vm_ioctl,
 #ifdef CONFIG_COMPAT
 	.compat_ioctl   = kvm_vm_compat_ioctl,
 #endif
-	.mmap           = kvm_vm_mmap,
 	.llseek		= noop_llseek,
 };
 
-- 
cgit 


From ce332f662deb545c8a4f3f58debcca26bb2e44b0 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Mon, 4 Nov 2013 22:36:17 +0200
Subject: srcu: API for barrier after srcu read unlock

srcu read lock/unlock include a full memory barrier
but that's an implementation detail.
Add an API for make memory fencing explicit for
users that need this barrier, to make sure we
can change it as needed without breaking all users.

Acked-by: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 include/linux/srcu.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/include/linux/srcu.h b/include/linux/srcu.h
index c114614ed172..9b058eecd403 100644
--- a/include/linux/srcu.h
+++ b/include/linux/srcu.h
@@ -237,4 +237,18 @@ static inline void srcu_read_unlock(struct srcu_struct *sp, int idx)
 	__srcu_read_unlock(sp, idx);
 }
 
+/**
+ * smp_mb__after_srcu_read_unlock - ensure full ordering after srcu_read_unlock
+ *
+ * Converts the preceding srcu_read_unlock into a two-way memory barrier.
+ *
+ * Call this after srcu_read_unlock, to guarantee that all memory operations
+ * that occur after smp_mb__after_srcu_read_unlock will appear to happen after
+ * the preceding srcu_read_unlock.
+ */
+static inline void smp_mb__after_srcu_read_unlock(void)
+{
+	/* __srcu_read_unlock has smp_mb() internally so nothing to do here. */
+}
+
 #endif
-- 
cgit 


From 01b71917b55d28c09ade9fb8c683cf0d2aad1858 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Mon, 4 Nov 2013 22:36:25 +0200
Subject: kvm: optimize out smp_mb after srcu_read_unlock

I noticed that srcu_read_lock/unlock both have a memory barrier,
so just by moving srcu_read_unlock earlier we can get rid of
one call to smp_mb() using smp_mb__after_srcu_read_unlock instead.

Unsurprisingly, the gain is small but measureable using the unit test
microbenchmark:
before
        vmcall in the ballpark of 1410 cycles
after
        vmcall in the ballpark of 1360 cycles

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/kvm/x86.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 07c127fc2064..21ef1ba184ae 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -5966,10 +5966,12 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
 
 	vcpu->mode = IN_GUEST_MODE;
 
+	srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx);
+
 	/* We should set ->mode before check ->requests,
 	 * see the comment in make_all_cpus_request.
 	 */
-	smp_mb();
+	smp_mb__after_srcu_read_unlock();
 
 	local_irq_disable();
 
@@ -5979,12 +5981,11 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
 		smp_wmb();
 		local_irq_enable();
 		preempt_enable();
+		vcpu->srcu_idx = srcu_read_lock(&vcpu->kvm->srcu);
 		r = 1;
 		goto cancel_injection;
 	}
 
-	srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx);
-
 	if (req_immediate_exit)
 		smp_send_reschedule(vcpu->cpu);
 
-- 
cgit 


From a9f2d19ba7be38590c84487359891d45a66b62f4 Mon Sep 17 00:00:00 2001
From: Ni Wade <wni@nvidia.com>
Date: Wed, 6 Nov 2013 14:30:13 +0800
Subject: thermal: Fix binding problem when there is thermal zone params

The thermal zone params can be used to set governor
to specific thermal governor for thermal zone device.
But if the thermal zone params has only governor name
without thermal bind params, then the thermal zone device
will not be binding to cooling device. Because tz->ops->bind
operator is not invoked in bind_tz() and bind_cdev() when
there is thermal zone params.

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Jinyoung Park <jinyoungp@nvidia.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
 drivers/thermal/thermal_core.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index db99b334712a..03a567199bbe 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -247,10 +247,11 @@ static void bind_cdev(struct thermal_cooling_device *cdev)
 		if (!pos->tzp && !pos->ops->bind)
 			continue;
 
-		if (!pos->tzp && pos->ops->bind) {
+		if (pos->ops->bind) {
 			ret = pos->ops->bind(pos, cdev);
 			if (ret)
 				print_bind_err_msg(pos, cdev, ret);
+			continue;
 		}
 
 		tzp = pos->tzp;
@@ -282,8 +283,8 @@ static void bind_tz(struct thermal_zone_device *tz)
 
 	mutex_lock(&thermal_list_lock);
 
-	/* If there is no platform data, try to use ops->bind */
-	if (!tzp && tz->ops->bind) {
+	/* If there is ops->bind, try to use ops->bind */
+	if (tz->ops->bind) {
 		list_for_each_entry(pos, &thermal_cdev_list, node) {
 			ret = tz->ops->bind(tz, pos);
 			if (ret)
-- 
cgit 


From 29fa9578046ea51e9cf97c4e16207ea6ec375084 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 15:00:02 +0100
Subject: ALSA: ctxfi: Use WARN_ON() instead of BUG_ON()

BUG_ON() is rather useless for debugging as it leads to panic().
Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/ctxfi/cthardware.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sound/pci/ctxfi/cthardware.c b/sound/pci/ctxfi/cthardware.c
index 110b8ace6d8a..a689f2552706 100644
--- a/sound/pci/ctxfi/cthardware.c
+++ b/sound/pci/ctxfi/cthardware.c
@@ -69,7 +69,8 @@ unsigned int get_field(unsigned int data, unsigned int field)
 {
 	int i;
 
-	BUG_ON(!field);
+	if (WARN_ON(!field))
+		return 0;
 	/* @field should always be greater than 0 */
 	for (i = 0; !(field & (1 << i)); )
 		i++;
@@ -81,7 +82,8 @@ void set_field(unsigned int *data, unsigned int field, unsigned int value)
 {
 	int i;
 
-	BUG_ON(!field);
+	if (WARN_ON(!field))
+		return;
 	/* @field should always be greater than 0 */
 	for (i = 0; !(field & (1 << i)); )
 		i++;
-- 
cgit 


From 025be74c1db44158dd3cfe43b89ba16266d01062 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 15:01:47 +0100
Subject: ALSA: ps3: Use WARN_ON() instead of BUG_ON()

BUG_ON() is rather useless for debugging as it leads to panic().
Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/ppc/snd_ps3.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sound/ppc/snd_ps3.c b/sound/ppc/snd_ps3.c
index 8c7dcbe0118d..ebb76f2d90d7 100644
--- a/sound/ppc/snd_ps3.c
+++ b/sound/ppc/snd_ps3.c
@@ -933,8 +933,10 @@ static int snd_ps3_driver_probe(struct ps3_system_bus_device *dev)
 	int i, ret;
 	u64 lpar_addr, lpar_size;
 
-	BUG_ON(!firmware_has_feature(FW_FEATURE_PS3_LV1));
-	BUG_ON(dev->match_id != PS3_MATCH_ID_SOUND);
+	if (WARN_ON(!firmware_has_feature(FW_FEATURE_PS3_LV1)))
+		return -ENODEV;
+	if (WARN_ON(dev->match_id != PS3_MATCH_ID_SOUND))
+		return -ENODEV;
 
 	the_card.ps3_dev = dev;
 
-- 
cgit 


From 5a19b178d7b4dd162b3d4c7e729f30348f2eb177 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 15:02:42 +0100
Subject: ALSA: sparc/cs4231: Use WARN_ON() instead of BUG_ON()

BUG_ON() is rather useless for debugging as it leads to panic().
Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/sparc/cs4231.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sound/sparc/cs4231.c b/sound/sparc/cs4231.c
index 54aaad2a10f5..b47f6fe6277f 100644
--- a/sound/sparc/cs4231.c
+++ b/sound/sparc/cs4231.c
@@ -429,7 +429,8 @@ static void snd_cs4231_advance_dma(struct cs4231_dma_control *dma_cont,
 		unsigned int period_size = snd_pcm_lib_period_bytes(substream);
 		unsigned int offset = period_size * (*periods_sent);
 
-		BUG_ON(period_size >= (1 << 24));
+		if (WARN_ON(period_size >= (1 << 24)))
+			return;
 
 		if (dma_cont->request(dma_cont,
 				      runtime->dma_addr + offset, period_size))
@@ -912,7 +913,8 @@ static int snd_cs4231_playback_prepare(struct snd_pcm_substream *substream)
 	chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE |
 					    CS4231_PLAYBACK_PIO);
 
-	BUG_ON(runtime->period_size > 0xffff + 1);
+	if (WARN_ON(runtime->period_size > 0xffff + 1))
+		return -EINVAL;
 
 	chip->p_periods_sent = 0;
 	spin_unlock_irqrestore(&chip->lock, flags);
-- 
cgit 


From c3cd1badc86c62f64f7e1d7034b078cb7e9b254b Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 15:03:05 +0100
Subject: ALSA: mips/ad1843: Use WARN_ON() instead of BUG_ON()

BUG_ON() is rather useless for debugging as it leads to panic().
Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/mips/ad1843.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/mips/ad1843.c b/sound/mips/ad1843.c
index c624510ec374..586907500ca5 100644
--- a/sound/mips/ad1843.c
+++ b/sound/mips/ad1843.c
@@ -276,7 +276,7 @@ static void ad1843_write_multi(struct snd_ad1843 *ad1843, int argcount, ...)
 		if (reg == -1)
 			reg = fp->reg;
 		else
-			BUG_ON(reg != fp->reg);
+			WARN_ON(reg != fp->reg);
 		m = ((1 << fp->nbits) - 1) << fp->lo_bit;
 		mask |= m;
 		bits |= (value << fp->lo_bit) & m;
-- 
cgit 


From 88ec7ae82dff8ca815ff8a31622a2811240b5d0c Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 15:33:40 +0100
Subject: ALSA: pxa2xx: Replace BUG() with snd_BUG()

BUG() used in the driver is just to spit the stack trace on buggy
points, not really needed to stop the whole operation.  For that
purpose, it'd be more convenient to use snd_BUG() instead.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/arm/pxa2xx-ac97-lib.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/arm/pxa2xx-ac97-lib.c b/sound/arm/pxa2xx-ac97-lib.c
index 99a466822a7d..66de90ed30ca 100644
--- a/sound/arm/pxa2xx-ac97-lib.c
+++ b/sound/arm/pxa2xx-ac97-lib.c
@@ -208,7 +208,7 @@ bool pxa2xx_ac97_try_warm_reset(struct snd_ac97 *ac97)
 		pxa_ac97_warm_pxa3xx();
 	else
 #endif
-		BUG();
+		snd_BUG();
 
 	while (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR)) && timeout--)
 		mdelay(1);
@@ -245,7 +245,7 @@ bool pxa2xx_ac97_try_cold_reset(struct snd_ac97 *ac97)
 		pxa_ac97_cold_pxa3xx();
 	else
 #endif
-		BUG();
+		snd_BUG();
 
 	while (!((GSR | gsr_bits) & (GSR_PCR | GSR_SCR)) && timeout--)
 		mdelay(1);
-- 
cgit 


From 3b03f72445ba1437cfa29f9719bb3cfdb60558d9 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao2.yu@samsung.com>
Date: Wed, 6 Nov 2013 09:12:04 +0800
Subject: f2fs: avoid to use a NULL point in destroy_segment_manager

A NULL point should avoid to be used in destroy_segment_manager after allocating
memory fail for f2fs_sm_info.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/segment.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 3d4d5fc19e6f..ff363e686b7e 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -1744,6 +1744,8 @@ static void destroy_sit_info(struct f2fs_sb_info *sbi)
 void destroy_segment_manager(struct f2fs_sb_info *sbi)
 {
 	struct f2fs_sm_info *sm_info = SM_I(sbi);
+	if (!sm_info)
+		return;
 	destroy_dirty_segmap(sbi);
 	destroy_curseg(sbi);
 	destroy_free_segmap(sbi);
-- 
cgit 


From d63285e94af3ade4fa8b10b0d9a22bcf72baf2f9 Mon Sep 17 00:00:00 2001
From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Fri, 11 Oct 2013 21:39:25 -0300
Subject: pvclock: detect watchdog reset at pvclock read

Implement reset of kernel watchdogs at pvclock read time. This avoids
adding special code to every watchdog.

This is possible for watchdogs which measure time based on sched_clock() or
ktime_get() variants.

Suggested by Don Zickus.

Acked-by: Don Zickus <dzickus@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/include/asm/pvclock.h |  2 ++
 arch/x86/kernel/kvmclock.c     |  1 +
 arch/x86/kernel/pvclock.c      | 12 ++++++++++++
 3 files changed, 15 insertions(+)

diff --git a/arch/x86/include/asm/pvclock.h b/arch/x86/include/asm/pvclock.h
index be8269b00e2a..d6b078e9fa28 100644
--- a/arch/x86/include/asm/pvclock.h
+++ b/arch/x86/include/asm/pvclock.h
@@ -14,6 +14,8 @@ void pvclock_read_wallclock(struct pvclock_wall_clock *wall,
 			    struct timespec *ts);
 void pvclock_resume(void);
 
+void pvclock_touch_watchdogs(void);
+
 /*
  * Scale a 64-bit delta by scaling and multiplying by a 32-bit fraction,
  * yielding a 64-bit result.
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index 1570e0741344..e6041094ff26 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -139,6 +139,7 @@ bool kvm_check_and_clear_guest_paused(void)
 	src = &hv_clock[cpu].pvti;
 	if ((src->flags & PVCLOCK_GUEST_STOPPED) != 0) {
 		src->flags &= ~PVCLOCK_GUEST_STOPPED;
+		pvclock_touch_watchdogs();
 		ret = true;
 	}
 
diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index a16bae3f83b3..6279928c0a71 100644
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -43,6 +43,13 @@ unsigned long pvclock_tsc_khz(struct pvclock_vcpu_time_info *src)
 	return pv_tsc_khz;
 }
 
+void pvclock_touch_watchdogs(void)
+{
+	touch_softlockup_watchdog_sync();
+	clocksource_touch_watchdog();
+	rcu_cpu_stall_reset();
+}
+
 static atomic64_t last_value = ATOMIC64_INIT(0);
 
 void pvclock_resume(void)
@@ -74,6 +81,11 @@ cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src)
 		version = __pvclock_read_cycles(src, &ret, &flags);
 	} while ((src->version & 1) || version != src->version);
 
+	if (unlikely((flags & PVCLOCK_GUEST_STOPPED) != 0)) {
+		src->flags &= ~PVCLOCK_GUEST_STOPPED;
+		pvclock_touch_watchdogs();
+	}
+
 	if ((valid_flags & PVCLOCK_TSC_STABLE_BIT) &&
 		(flags & PVCLOCK_TSC_STABLE_BIT))
 		return ret;
-- 
cgit 


From edf6844ebf4d66546caf2a75e9d05e579990678c Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Mon, 4 Nov 2013 09:30:18 +0100
Subject: microblaze: Remove unused NO_MMU Kconfig parameter

This removes the NO_MMU Kconfig parameter,
which was no longer used anywhere in the source code
and Makefiles.

This also updates a comment refering to this parameter.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---
 arch/microblaze/Kconfig                       | 5 -----
 arch/microblaze/kernel/hw_exception_handler.S | 4 ++--
 2 files changed, 2 insertions(+), 7 deletions(-)

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index b82f82b74319..d8ec74b4d1ee 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -82,11 +82,6 @@ config MMU
 	bool "MMU support"
 	default n
 
-config NO_MMU
-	bool
-	depends on !MMU
-	default y
-
 comment "Boot options"
 
 config CMDLINE_BOOL
diff --git a/arch/microblaze/kernel/hw_exception_handler.S b/arch/microblaze/kernel/hw_exception_handler.S
index 61b3a1fed46f..fc6b89f4dd31 100644
--- a/arch/microblaze/kernel/hw_exception_handler.S
+++ b/arch/microblaze/kernel/hw_exception_handler.S
@@ -193,8 +193,8 @@
  *      -                            W   S   REG   EXC
  *
  *
- * STACK FRAME STRUCTURE (for NO_MMU)
- * ---------------------------------
+ * STACK FRAME STRUCTURE (for CONFIG_MMU=n)
+ * ----------------------------------------
  *
  *      +-------------+         + 0
  *      |     MSR     |
-- 
cgit 


From 8b414521bc5375ae8ba18c083af95d44b8da0d04 Mon Sep 17 00:00:00 2001
From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Fri, 11 Oct 2013 21:39:26 -0300
Subject: hung_task: add method to reset detector

In certain occasions it is possible for a hung task detector
positive to be false: continuation from a paused VM, for example.

Add a method to reset detection, similar as is done
with other kernel watchdogs.

Acked-by: Don Zickus <dzickus@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/kernel/pvclock.c |  1 +
 include/linux/sched.h     |  8 ++++++++
 kernel/hung_task.c        | 11 +++++++++++
 3 files changed, 20 insertions(+)

diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c
index 6279928c0a71..2f355d229a58 100644
--- a/arch/x86/kernel/pvclock.c
+++ b/arch/x86/kernel/pvclock.c
@@ -48,6 +48,7 @@ void pvclock_touch_watchdogs(void)
 	touch_softlockup_watchdog_sync();
 	clocksource_touch_watchdog();
 	rcu_cpu_stall_reset();
+	reset_hung_task_detector();
 }
 
 static atomic64_t last_value = ATOMIC64_INIT(0);
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 6682da36b293..7bb4b4a2a101 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -285,6 +285,14 @@ static inline void lockup_detector_init(void)
 }
 #endif
 
+#ifdef CONFIG_DETECT_HUNG_TASK
+void reset_hung_task_detector(void);
+#else
+static inline void reset_hung_task_detector(void)
+{
+}
+#endif
+
 /* Attach to any functions which should be ignored in wchan output. */
 #define __sched		__attribute__((__section__(".sched.text")))
 
diff --git a/kernel/hung_task.c b/kernel/hung_task.c
index 3e97fb126e6b..dfdf51534b3e 100644
--- a/kernel/hung_task.c
+++ b/kernel/hung_task.c
@@ -203,6 +203,14 @@ int proc_dohung_task_timeout_secs(struct ctl_table *table, int write,
 	return ret;
 }
 
+static atomic_t reset_hung_task = ATOMIC_INIT(0);
+
+void reset_hung_task_detector(void)
+{
+	atomic_set(&reset_hung_task, 1);
+}
+EXPORT_SYMBOL_GPL(reset_hung_task_detector);
+
 /*
  * kthread which checks for tasks stuck in D state
  */
@@ -216,6 +224,9 @@ static int watchdog(void *dummy)
 		while (schedule_timeout_interruptible(timeout_jiffies(timeout)))
 			timeout = sysctl_hung_task_timeout_secs;
 
+		if (atomic_xchg(&reset_hung_task, 0))
+			continue;
+
 		check_hung_uninterruptible_tasks(timeout);
 	}
 
-- 
cgit 


From 1696a8bee390929fed05c6297164816ae2ced280 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 31 Oct 2013 18:18:19 +0100
Subject: locking: Move the rtmutex code to kernel/locking/

Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-p9ijt8div0hwldexwfm4nlhj@git.kernel.org
[ Fixed build failure in kernel/rcu/tree_plugin.h. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/Makefile                 |    3 -
 kernel/futex.c                  |    2 +-
 kernel/locking/Makefile         |    3 +
 kernel/locking/rtmutex-debug.c  |  187 +++++++
 kernel/locking/rtmutex-debug.h  |   33 ++
 kernel/locking/rtmutex-tester.c |  420 ++++++++++++++++
 kernel/locking/rtmutex.c        | 1060 +++++++++++++++++++++++++++++++++++++++
 kernel/locking/rtmutex.h        |   26 +
 kernel/locking/rtmutex_common.h |  126 +++++
 kernel/rcu/tree_plugin.h        |    2 +-
 kernel/rtmutex-debug.c          |  187 -------
 kernel/rtmutex-debug.h          |   33 --
 kernel/rtmutex-tester.c         |  420 ----------------
 kernel/rtmutex.c                | 1060 ---------------------------------------
 kernel/rtmutex.h                |   26 -
 kernel/rtmutex_common.h         |  126 -----
 16 files changed, 1857 insertions(+), 1857 deletions(-)
 create mode 100644 kernel/locking/rtmutex-debug.c
 create mode 100644 kernel/locking/rtmutex-debug.h
 create mode 100644 kernel/locking/rtmutex-tester.c
 create mode 100644 kernel/locking/rtmutex.c
 create mode 100644 kernel/locking/rtmutex.h
 create mode 100644 kernel/locking/rtmutex_common.h
 delete mode 100644 kernel/rtmutex-debug.c
 delete mode 100644 kernel/rtmutex-debug.h
 delete mode 100644 kernel/rtmutex-tester.c
 delete mode 100644 kernel/rtmutex.c
 delete mode 100644 kernel/rtmutex.h
 delete mode 100644 kernel/rtmutex_common.h

diff --git a/kernel/Makefile b/kernel/Makefile
index 45e5ae26dc03..9c2ad1852223 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -35,9 +35,6 @@ obj-$(CONFIG_FUTEX) += futex.o
 ifeq ($(CONFIG_COMPAT),y)
 obj-$(CONFIG_FUTEX) += futex_compat.o
 endif
-obj-$(CONFIG_RT_MUTEXES) += rtmutex.o
-obj-$(CONFIG_DEBUG_RT_MUTEXES) += rtmutex-debug.o
-obj-$(CONFIG_RT_MUTEX_TESTER) += rtmutex-tester.o
 obj-$(CONFIG_GENERIC_ISA_DMA) += dma.o
 obj-$(CONFIG_SMP) += smp.o
 ifneq ($(CONFIG_SMP),y)
diff --git a/kernel/futex.c b/kernel/futex.c
index c3a1a55a5214..80ba086f021d 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -66,7 +66,7 @@
 
 #include <asm/futex.h>
 
-#include "rtmutex_common.h"
+#include "locking/rtmutex_common.h"
 
 int __read_mostly futex_cmpxchg_enabled;
 
diff --git a/kernel/locking/Makefile b/kernel/locking/Makefile
index 5978fddf1412..59f66dec2bf9 100644
--- a/kernel/locking/Makefile
+++ b/kernel/locking/Makefile
@@ -15,5 +15,8 @@ obj-$(CONFIG_LOCKDEP) += lockdep_proc.o
 endif
 obj-$(CONFIG_SMP) += spinlock.o
 obj-$(CONFIG_PROVE_LOCKING) += spinlock.o
+obj-$(CONFIG_RT_MUTEXES) += rtmutex.o
+obj-$(CONFIG_DEBUG_RT_MUTEXES) += rtmutex-debug.o
+obj-$(CONFIG_RT_MUTEX_TESTER) += rtmutex-tester.o
 obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock.o
 obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock_debug.o
diff --git a/kernel/locking/rtmutex-debug.c b/kernel/locking/rtmutex-debug.c
new file mode 100644
index 000000000000..13b243a323fa
--- /dev/null
+++ b/kernel/locking/rtmutex-debug.c
@@ -0,0 +1,187 @@
+/*
+ * RT-Mutexes: blocking mutual exclusion locks with PI support
+ *
+ * started by Ingo Molnar and Thomas Gleixner:
+ *
+ *  Copyright (C) 2004-2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
+ *  Copyright (C) 2006 Timesys Corp., Thomas Gleixner <tglx@timesys.com>
+ *
+ * This code is based on the rt.c implementation in the preempt-rt tree.
+ * Portions of said code are
+ *
+ *  Copyright (C) 2004  LynuxWorks, Inc., Igor Manyilov, Bill Huey
+ *  Copyright (C) 2006  Esben Nielsen
+ *  Copyright (C) 2006  Kihon Technologies Inc.,
+ *			Steven Rostedt <rostedt@goodmis.org>
+ *
+ * See rt.c in preempt-rt for proper credits and further information
+ */
+#include <linux/sched.h>
+#include <linux/sched/rt.h>
+#include <linux/delay.h>
+#include <linux/export.h>
+#include <linux/spinlock.h>
+#include <linux/kallsyms.h>
+#include <linux/syscalls.h>
+#include <linux/interrupt.h>
+#include <linux/plist.h>
+#include <linux/fs.h>
+#include <linux/debug_locks.h>
+
+#include "rtmutex_common.h"
+
+static void printk_task(struct task_struct *p)
+{
+	if (p)
+		printk("%16s:%5d [%p, %3d]", p->comm, task_pid_nr(p), p, p->prio);
+	else
+		printk("<none>");
+}
+
+static void printk_lock(struct rt_mutex *lock, int print_owner)
+{
+	if (lock->name)
+		printk(" [%p] {%s}\n",
+			lock, lock->name);
+	else
+		printk(" [%p] {%s:%d}\n",
+			lock, lock->file, lock->line);
+
+	if (print_owner && rt_mutex_owner(lock)) {
+		printk(".. ->owner: %p\n", lock->owner);
+		printk(".. held by:  ");
+		printk_task(rt_mutex_owner(lock));
+		printk("\n");
+	}
+}
+
+void rt_mutex_debug_task_free(struct task_struct *task)
+{
+	DEBUG_LOCKS_WARN_ON(!plist_head_empty(&task->pi_waiters));
+	DEBUG_LOCKS_WARN_ON(task->pi_blocked_on);
+}
+
+/*
+ * We fill out the fields in the waiter to store the information about
+ * the deadlock. We print when we return. act_waiter can be NULL in
+ * case of a remove waiter operation.
+ */
+void debug_rt_mutex_deadlock(int detect, struct rt_mutex_waiter *act_waiter,
+			     struct rt_mutex *lock)
+{
+	struct task_struct *task;
+
+	if (!debug_locks || detect || !act_waiter)
+		return;
+
+	task = rt_mutex_owner(act_waiter->lock);
+	if (task && task != current) {
+		act_waiter->deadlock_task_pid = get_pid(task_pid(task));
+		act_waiter->deadlock_lock = lock;
+	}
+}
+
+void debug_rt_mutex_print_deadlock(struct rt_mutex_waiter *waiter)
+{
+	struct task_struct *task;
+
+	if (!waiter->deadlock_lock || !debug_locks)
+		return;
+
+	rcu_read_lock();
+	task = pid_task(waiter->deadlock_task_pid, PIDTYPE_PID);
+	if (!task) {
+		rcu_read_unlock();
+		return;
+	}
+
+	if (!debug_locks_off()) {
+		rcu_read_unlock();
+		return;
+	}
+
+	printk("\n============================================\n");
+	printk(  "[ BUG: circular locking deadlock detected! ]\n");
+	printk("%s\n", print_tainted());
+	printk(  "--------------------------------------------\n");
+	printk("%s/%d is deadlocking current task %s/%d\n\n",
+	       task->comm, task_pid_nr(task),
+	       current->comm, task_pid_nr(current));
+
+	printk("\n1) %s/%d is trying to acquire this lock:\n",
+	       current->comm, task_pid_nr(current));
+	printk_lock(waiter->lock, 1);
+
+	printk("\n2) %s/%d is blocked on this lock:\n",
+		task->comm, task_pid_nr(task));
+	printk_lock(waiter->deadlock_lock, 1);
+
+	debug_show_held_locks(current);
+	debug_show_held_locks(task);
+
+	printk("\n%s/%d's [blocked] stackdump:\n\n",
+		task->comm, task_pid_nr(task));
+	show_stack(task, NULL);
+	printk("\n%s/%d's [current] stackdump:\n\n",
+		current->comm, task_pid_nr(current));
+	dump_stack();
+	debug_show_all_locks();
+	rcu_read_unlock();
+
+	printk("[ turning off deadlock detection."
+	       "Please report this trace. ]\n\n");
+}
+
+void debug_rt_mutex_lock(struct rt_mutex *lock)
+{
+}
+
+void debug_rt_mutex_unlock(struct rt_mutex *lock)
+{
+	DEBUG_LOCKS_WARN_ON(rt_mutex_owner(lock) != current);
+}
+
+void
+debug_rt_mutex_proxy_lock(struct rt_mutex *lock, struct task_struct *powner)
+{
+}
+
+void debug_rt_mutex_proxy_unlock(struct rt_mutex *lock)
+{
+	DEBUG_LOCKS_WARN_ON(!rt_mutex_owner(lock));
+}
+
+void debug_rt_mutex_init_waiter(struct rt_mutex_waiter *waiter)
+{
+	memset(waiter, 0x11, sizeof(*waiter));
+	plist_node_init(&waiter->list_entry, MAX_PRIO);
+	plist_node_init(&waiter->pi_list_entry, MAX_PRIO);
+	waiter->deadlock_task_pid = NULL;
+}
+
+void debug_rt_mutex_free_waiter(struct rt_mutex_waiter *waiter)
+{
+	put_pid(waiter->deadlock_task_pid);
+	DEBUG_LOCKS_WARN_ON(!plist_node_empty(&waiter->list_entry));
+	DEBUG_LOCKS_WARN_ON(!plist_node_empty(&waiter->pi_list_entry));
+	memset(waiter, 0x22, sizeof(*waiter));
+}
+
+void debug_rt_mutex_init(struct rt_mutex *lock, const char *name)
+{
+	/*
+	 * Make sure we are not reinitializing a held lock:
+	 */
+	debug_check_no_locks_freed((void *)lock, sizeof(*lock));
+	lock->name = name;
+}
+
+void
+rt_mutex_deadlock_account_lock(struct rt_mutex *lock, struct task_struct *task)
+{
+}
+
+void rt_mutex_deadlock_account_unlock(struct task_struct *task)
+{
+}
+
diff --git a/kernel/locking/rtmutex-debug.h b/kernel/locking/rtmutex-debug.h
new file mode 100644
index 000000000000..14193d596d78
--- /dev/null
+++ b/kernel/locking/rtmutex-debug.h
@@ -0,0 +1,33 @@
+/*
+ * RT-Mutexes: blocking mutual exclusion locks with PI support
+ *
+ * started by Ingo Molnar and Thomas Gleixner:
+ *
+ *  Copyright (C) 2004-2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
+ *  Copyright (C) 2006, Timesys Corp., Thomas Gleixner <tglx@timesys.com>
+ *
+ * This file contains macros used solely by rtmutex.c. Debug version.
+ */
+
+extern void
+rt_mutex_deadlock_account_lock(struct rt_mutex *lock, struct task_struct *task);
+extern void rt_mutex_deadlock_account_unlock(struct task_struct *task);
+extern void debug_rt_mutex_init_waiter(struct rt_mutex_waiter *waiter);
+extern void debug_rt_mutex_free_waiter(struct rt_mutex_waiter *waiter);
+extern void debug_rt_mutex_init(struct rt_mutex *lock, const char *name);
+extern void debug_rt_mutex_lock(struct rt_mutex *lock);
+extern void debug_rt_mutex_unlock(struct rt_mutex *lock);
+extern void debug_rt_mutex_proxy_lock(struct rt_mutex *lock,
+				      struct task_struct *powner);
+extern void debug_rt_mutex_proxy_unlock(struct rt_mutex *lock);
+extern void debug_rt_mutex_deadlock(int detect, struct rt_mutex_waiter *waiter,
+				    struct rt_mutex *lock);
+extern void debug_rt_mutex_print_deadlock(struct rt_mutex_waiter *waiter);
+# define debug_rt_mutex_reset_waiter(w)			\
+	do { (w)->deadlock_lock = NULL; } while (0)
+
+static inline int debug_rt_mutex_detect_deadlock(struct rt_mutex_waiter *waiter,
+						 int detect)
+{
+	return (waiter != NULL);
+}
diff --git a/kernel/locking/rtmutex-tester.c b/kernel/locking/rtmutex-tester.c
new file mode 100644
index 000000000000..1d96dd0d93c1
--- /dev/null
+++ b/kernel/locking/rtmutex-tester.c
@@ -0,0 +1,420 @@
+/*
+ * RT-Mutex-tester: scriptable tester for rt mutexes
+ *
+ * started by Thomas Gleixner:
+ *
+ *  Copyright (C) 2006, Timesys Corp., Thomas Gleixner <tglx@timesys.com>
+ *
+ */
+#include <linux/device.h>
+#include <linux/kthread.h>
+#include <linux/export.h>
+#include <linux/sched.h>
+#include <linux/sched/rt.h>
+#include <linux/spinlock.h>
+#include <linux/timer.h>
+#include <linux/freezer.h>
+#include <linux/stat.h>
+
+#include "rtmutex.h"
+
+#define MAX_RT_TEST_THREADS	8
+#define MAX_RT_TEST_MUTEXES	8
+
+static spinlock_t rttest_lock;
+static atomic_t rttest_event;
+
+struct test_thread_data {
+	int			opcode;
+	int			opdata;
+	int			mutexes[MAX_RT_TEST_MUTEXES];
+	int			event;
+	struct device		dev;
+};
+
+static struct test_thread_data thread_data[MAX_RT_TEST_THREADS];
+static struct task_struct *threads[MAX_RT_TEST_THREADS];
+static struct rt_mutex mutexes[MAX_RT_TEST_MUTEXES];
+
+enum test_opcodes {
+	RTTEST_NOP = 0,
+	RTTEST_SCHEDOT,		/* 1 Sched other, data = nice */
+	RTTEST_SCHEDRT,		/* 2 Sched fifo, data = prio */
+	RTTEST_LOCK,		/* 3 Lock uninterruptible, data = lockindex */
+	RTTEST_LOCKNOWAIT,	/* 4 Lock uninterruptible no wait in wakeup, data = lockindex */
+	RTTEST_LOCKINT,		/* 5 Lock interruptible, data = lockindex */
+	RTTEST_LOCKINTNOWAIT,	/* 6 Lock interruptible no wait in wakeup, data = lockindex */
+	RTTEST_LOCKCONT,	/* 7 Continue locking after the wakeup delay */
+	RTTEST_UNLOCK,		/* 8 Unlock, data = lockindex */
+	/* 9, 10 - reserved for BKL commemoration */
+	RTTEST_SIGNAL = 11,	/* 11 Signal other test thread, data = thread id */
+	RTTEST_RESETEVENT = 98,	/* 98 Reset event counter */
+	RTTEST_RESET = 99,	/* 99 Reset all pending operations */
+};
+
+static int handle_op(struct test_thread_data *td, int lockwakeup)
+{
+	int i, id, ret = -EINVAL;
+
+	switch(td->opcode) {
+
+	case RTTEST_NOP:
+		return 0;
+
+	case RTTEST_LOCKCONT:
+		td->mutexes[td->opdata] = 1;
+		td->event = atomic_add_return(1, &rttest_event);
+		return 0;
+
+	case RTTEST_RESET:
+		for (i = 0; i < MAX_RT_TEST_MUTEXES; i++) {
+			if (td->mutexes[i] == 4) {
+				rt_mutex_unlock(&mutexes[i]);
+				td->mutexes[i] = 0;
+			}
+		}
+		return 0;
+
+	case RTTEST_RESETEVENT:
+		atomic_set(&rttest_event, 0);
+		return 0;
+
+	default:
+		if (lockwakeup)
+			return ret;
+	}
+
+	switch(td->opcode) {
+
+	case RTTEST_LOCK:
+	case RTTEST_LOCKNOWAIT:
+		id = td->opdata;
+		if (id < 0 || id >= MAX_RT_TEST_MUTEXES)
+			return ret;
+
+		td->mutexes[id] = 1;
+		td->event = atomic_add_return(1, &rttest_event);
+		rt_mutex_lock(&mutexes[id]);
+		td->event = atomic_add_return(1, &rttest_event);
+		td->mutexes[id] = 4;
+		return 0;
+
+	case RTTEST_LOCKINT:
+	case RTTEST_LOCKINTNOWAIT:
+		id = td->opdata;
+		if (id < 0 || id >= MAX_RT_TEST_MUTEXES)
+			return ret;
+
+		td->mutexes[id] = 1;
+		td->event = atomic_add_return(1, &rttest_event);
+		ret = rt_mutex_lock_interruptible(&mutexes[id], 0);
+		td->event = atomic_add_return(1, &rttest_event);
+		td->mutexes[id] = ret ? 0 : 4;
+		return ret ? -EINTR : 0;
+
+	case RTTEST_UNLOCK:
+		id = td->opdata;
+		if (id < 0 || id >= MAX_RT_TEST_MUTEXES || td->mutexes[id] != 4)
+			return ret;
+
+		td->event = atomic_add_return(1, &rttest_event);
+		rt_mutex_unlock(&mutexes[id]);
+		td->event = atomic_add_return(1, &rttest_event);
+		td->mutexes[id] = 0;
+		return 0;
+
+	default:
+		break;
+	}
+	return ret;
+}
+
+/*
+ * Schedule replacement for rtsem_down(). Only called for threads with
+ * PF_MUTEX_TESTER set.
+ *
+ * This allows us to have finegrained control over the event flow.
+ *
+ */
+void schedule_rt_mutex_test(struct rt_mutex *mutex)
+{
+	int tid, op, dat;
+	struct test_thread_data *td;
+
+	/* We have to lookup the task */
+	for (tid = 0; tid < MAX_RT_TEST_THREADS; tid++) {
+		if (threads[tid] == current)
+			break;
+	}
+
+	BUG_ON(tid == MAX_RT_TEST_THREADS);
+
+	td = &thread_data[tid];
+
+	op = td->opcode;
+	dat = td->opdata;
+
+	switch (op) {
+	case RTTEST_LOCK:
+	case RTTEST_LOCKINT:
+	case RTTEST_LOCKNOWAIT:
+	case RTTEST_LOCKINTNOWAIT:
+		if (mutex != &mutexes[dat])
+			break;
+
+		if (td->mutexes[dat] != 1)
+			break;
+
+		td->mutexes[dat] = 2;
+		td->event = atomic_add_return(1, &rttest_event);
+		break;
+
+	default:
+		break;
+	}
+
+	schedule();
+
+
+	switch (op) {
+	case RTTEST_LOCK:
+	case RTTEST_LOCKINT:
+		if (mutex != &mutexes[dat])
+			return;
+
+		if (td->mutexes[dat] != 2)
+			return;
+
+		td->mutexes[dat] = 3;
+		td->event = atomic_add_return(1, &rttest_event);
+		break;
+
+	case RTTEST_LOCKNOWAIT:
+	case RTTEST_LOCKINTNOWAIT:
+		if (mutex != &mutexes[dat])
+			return;
+
+		if (td->mutexes[dat] != 2)
+			return;
+
+		td->mutexes[dat] = 1;
+		td->event = atomic_add_return(1, &rttest_event);
+		return;
+
+	default:
+		return;
+	}
+
+	td->opcode = 0;
+
+	for (;;) {
+		set_current_state(TASK_INTERRUPTIBLE);
+
+		if (td->opcode > 0) {
+			int ret;
+
+			set_current_state(TASK_RUNNING);
+			ret = handle_op(td, 1);
+			set_current_state(TASK_INTERRUPTIBLE);
+			if (td->opcode == RTTEST_LOCKCONT)
+				break;
+			td->opcode = ret;
+		}
+
+		/* Wait for the next command to be executed */
+		schedule();
+	}
+
+	/* Restore previous command and data */
+	td->opcode = op;
+	td->opdata = dat;
+}
+
+static int test_func(void *data)
+{
+	struct test_thread_data *td = data;
+	int ret;
+
+	current->flags |= PF_MUTEX_TESTER;
+	set_freezable();
+	allow_signal(SIGHUP);
+
+	for(;;) {
+
+		set_current_state(TASK_INTERRUPTIBLE);
+
+		if (td->opcode > 0) {
+			set_current_state(TASK_RUNNING);
+			ret = handle_op(td, 0);
+			set_current_state(TASK_INTERRUPTIBLE);
+			td->opcode = ret;
+		}
+
+		/* Wait for the next command to be executed */
+		schedule();
+		try_to_freeze();
+
+		if (signal_pending(current))
+			flush_signals(current);
+
+		if(kthread_should_stop())
+			break;
+	}
+	return 0;
+}
+
+/**
+ * sysfs_test_command - interface for test commands
+ * @dev:	thread reference
+ * @buf:	command for actual step
+ * @count:	length of buffer
+ *
+ * command syntax:
+ *
+ * opcode:data
+ */
+static ssize_t sysfs_test_command(struct device *dev, struct device_attribute *attr,
+				  const char *buf, size_t count)
+{
+	struct sched_param schedpar;
+	struct test_thread_data *td;
+	char cmdbuf[32];
+	int op, dat, tid, ret;
+
+	td = container_of(dev, struct test_thread_data, dev);
+	tid = td->dev.id;
+
+	/* strings from sysfs write are not 0 terminated! */
+	if (count >= sizeof(cmdbuf))
+		return -EINVAL;
+
+	/* strip of \n: */
+	if (buf[count-1] == '\n')
+		count--;
+	if (count < 1)
+		return -EINVAL;
+
+	memcpy(cmdbuf, buf, count);
+	cmdbuf[count] = 0;
+
+	if (sscanf(cmdbuf, "%d:%d", &op, &dat) != 2)
+		return -EINVAL;
+
+	switch (op) {
+	case RTTEST_SCHEDOT:
+		schedpar.sched_priority = 0;
+		ret = sched_setscheduler(threads[tid], SCHED_NORMAL, &schedpar);
+		if (ret)
+			return ret;
+		set_user_nice(current, 0);
+		break;
+
+	case RTTEST_SCHEDRT:
+		schedpar.sched_priority = dat;
+		ret = sched_setscheduler(threads[tid], SCHED_FIFO, &schedpar);
+		if (ret)
+			return ret;
+		break;
+
+	case RTTEST_SIGNAL:
+		send_sig(SIGHUP, threads[tid], 0);
+		break;
+
+	default:
+		if (td->opcode > 0)
+			return -EBUSY;
+		td->opdata = dat;
+		td->opcode = op;
+		wake_up_process(threads[tid]);
+	}
+
+	return count;
+}
+
+/**
+ * sysfs_test_status - sysfs interface for rt tester
+ * @dev:	thread to query
+ * @buf:	char buffer to be filled with thread status info
+ */
+static ssize_t sysfs_test_status(struct device *dev, struct device_attribute *attr,
+				 char *buf)
+{
+	struct test_thread_data *td;
+	struct task_struct *tsk;
+	char *curr = buf;
+	int i;
+
+	td = container_of(dev, struct test_thread_data, dev);
+	tsk = threads[td->dev.id];
+
+	spin_lock(&rttest_lock);
+
+	curr += sprintf(curr,
+		"O: %4d, E:%8d, S: 0x%08lx, P: %4d, N: %4d, B: %p, M:",
+		td->opcode, td->event, tsk->state,
+			(MAX_RT_PRIO - 1) - tsk->prio,
+			(MAX_RT_PRIO - 1) - tsk->normal_prio,
+		tsk->pi_blocked_on);
+
+	for (i = MAX_RT_TEST_MUTEXES - 1; i >=0 ; i--)
+		curr += sprintf(curr, "%d", td->mutexes[i]);
+
+	spin_unlock(&rttest_lock);
+
+	curr += sprintf(curr, ", T: %p, R: %p\n", tsk,
+			mutexes[td->dev.id].owner);
+
+	return curr - buf;
+}
+
+static DEVICE_ATTR(status, S_IRUSR, sysfs_test_status, NULL);
+static DEVICE_ATTR(command, S_IWUSR, NULL, sysfs_test_command);
+
+static struct bus_type rttest_subsys = {
+	.name = "rttest",
+	.dev_name = "rttest",
+};
+
+static int init_test_thread(int id)
+{
+	thread_data[id].dev.bus = &rttest_subsys;
+	thread_data[id].dev.id = id;
+
+	threads[id] = kthread_run(test_func, &thread_data[id], "rt-test-%d", id);
+	if (IS_ERR(threads[id]))
+		return PTR_ERR(threads[id]);
+
+	return device_register(&thread_data[id].dev);
+}
+
+static int init_rttest(void)
+{
+	int ret, i;
+
+	spin_lock_init(&rttest_lock);
+
+	for (i = 0; i < MAX_RT_TEST_MUTEXES; i++)
+		rt_mutex_init(&mutexes[i]);
+
+	ret = subsys_system_register(&rttest_subsys, NULL);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < MAX_RT_TEST_THREADS; i++) {
+		ret = init_test_thread(i);
+		if (ret)
+			break;
+		ret = device_create_file(&thread_data[i].dev, &dev_attr_status);
+		if (ret)
+			break;
+		ret = device_create_file(&thread_data[i].dev, &dev_attr_command);
+		if (ret)
+			break;
+	}
+
+	printk("Initializing RT-Tester: %s\n", ret ? "Failed" : "OK" );
+
+	return ret;
+}
+
+device_initcall(init_rttest);
diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
new file mode 100644
index 000000000000..0dd6aec1cb6a
--- /dev/null
+++ b/kernel/locking/rtmutex.c
@@ -0,0 +1,1060 @@
+/*
+ * RT-Mutexes: simple blocking mutual exclusion locks with PI support
+ *
+ * started by Ingo Molnar and Thomas Gleixner.
+ *
+ *  Copyright (C) 2004-2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
+ *  Copyright (C) 2005-2006 Timesys Corp., Thomas Gleixner <tglx@timesys.com>
+ *  Copyright (C) 2005 Kihon Technologies Inc., Steven Rostedt
+ *  Copyright (C) 2006 Esben Nielsen
+ *
+ *  See Documentation/rt-mutex-design.txt for details.
+ */
+#include <linux/spinlock.h>
+#include <linux/export.h>
+#include <linux/sched.h>
+#include <linux/sched/rt.h>
+#include <linux/timer.h>
+
+#include "rtmutex_common.h"
+
+/*
+ * lock->owner state tracking:
+ *
+ * lock->owner holds the task_struct pointer of the owner. Bit 0
+ * is used to keep track of the "lock has waiters" state.
+ *
+ * owner	bit0
+ * NULL		0	lock is free (fast acquire possible)
+ * NULL		1	lock is free and has waiters and the top waiter
+ *				is going to take the lock*
+ * taskpointer	0	lock is held (fast release possible)
+ * taskpointer	1	lock is held and has waiters**
+ *
+ * The fast atomic compare exchange based acquire and release is only
+ * possible when bit 0 of lock->owner is 0.
+ *
+ * (*) It also can be a transitional state when grabbing the lock
+ * with ->wait_lock is held. To prevent any fast path cmpxchg to the lock,
+ * we need to set the bit0 before looking at the lock, and the owner may be
+ * NULL in this small time, hence this can be a transitional state.
+ *
+ * (**) There is a small time when bit 0 is set but there are no
+ * waiters. This can happen when grabbing the lock in the slow path.
+ * To prevent a cmpxchg of the owner releasing the lock, we need to
+ * set this bit before looking at the lock.
+ */
+
+static void
+rt_mutex_set_owner(struct rt_mutex *lock, struct task_struct *owner)
+{
+	unsigned long val = (unsigned long)owner;
+
+	if (rt_mutex_has_waiters(lock))
+		val |= RT_MUTEX_HAS_WAITERS;
+
+	lock->owner = (struct task_struct *)val;
+}
+
+static inline void clear_rt_mutex_waiters(struct rt_mutex *lock)
+{
+	lock->owner = (struct task_struct *)
+			((unsigned long)lock->owner & ~RT_MUTEX_HAS_WAITERS);
+}
+
+static void fixup_rt_mutex_waiters(struct rt_mutex *lock)
+{
+	if (!rt_mutex_has_waiters(lock))
+		clear_rt_mutex_waiters(lock);
+}
+
+/*
+ * We can speed up the acquire/release, if the architecture
+ * supports cmpxchg and if there's no debugging state to be set up
+ */
+#if defined(__HAVE_ARCH_CMPXCHG) && !defined(CONFIG_DEBUG_RT_MUTEXES)
+# define rt_mutex_cmpxchg(l,c,n)	(cmpxchg(&l->owner, c, n) == c)
+static inline void mark_rt_mutex_waiters(struct rt_mutex *lock)
+{
+	unsigned long owner, *p = (unsigned long *) &lock->owner;
+
+	do {
+		owner = *p;
+	} while (cmpxchg(p, owner, owner | RT_MUTEX_HAS_WAITERS) != owner);
+}
+#else
+# define rt_mutex_cmpxchg(l,c,n)	(0)
+static inline void mark_rt_mutex_waiters(struct rt_mutex *lock)
+{
+	lock->owner = (struct task_struct *)
+			((unsigned long)lock->owner | RT_MUTEX_HAS_WAITERS);
+}
+#endif
+
+/*
+ * Calculate task priority from the waiter list priority
+ *
+ * Return task->normal_prio when the waiter list is empty or when
+ * the waiter is not allowed to do priority boosting
+ */
+int rt_mutex_getprio(struct task_struct *task)
+{
+	if (likely(!task_has_pi_waiters(task)))
+		return task->normal_prio;
+
+	return min(task_top_pi_waiter(task)->pi_list_entry.prio,
+		   task->normal_prio);
+}
+
+/*
+ * Adjust the priority of a task, after its pi_waiters got modified.
+ *
+ * This can be both boosting and unboosting. task->pi_lock must be held.
+ */
+static void __rt_mutex_adjust_prio(struct task_struct *task)
+{
+	int prio = rt_mutex_getprio(task);
+
+	if (task->prio != prio)
+		rt_mutex_setprio(task, prio);
+}
+
+/*
+ * Adjust task priority (undo boosting). Called from the exit path of
+ * rt_mutex_slowunlock() and rt_mutex_slowlock().
+ *
+ * (Note: We do this outside of the protection of lock->wait_lock to
+ * allow the lock to be taken while or before we readjust the priority
+ * of task. We do not use the spin_xx_mutex() variants here as we are
+ * outside of the debug path.)
+ */
+static void rt_mutex_adjust_prio(struct task_struct *task)
+{
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&task->pi_lock, flags);
+	__rt_mutex_adjust_prio(task);
+	raw_spin_unlock_irqrestore(&task->pi_lock, flags);
+}
+
+/*
+ * Max number of times we'll walk the boosting chain:
+ */
+int max_lock_depth = 1024;
+
+/*
+ * Adjust the priority chain. Also used for deadlock detection.
+ * Decreases task's usage by one - may thus free the task.
+ *
+ * @task: the task owning the mutex (owner) for which a chain walk is probably
+ *	  needed
+ * @deadlock_detect: do we have to carry out deadlock detection?
+ * @orig_lock: the mutex (can be NULL if we are walking the chain to recheck
+ * 	       things for a task that has just got its priority adjusted, and
+ *	       is waiting on a mutex)
+ * @orig_waiter: rt_mutex_waiter struct for the task that has just donated
+ *		 its priority to the mutex owner (can be NULL in the case
+ *		 depicted above or if the top waiter is gone away and we are
+ *		 actually deboosting the owner)
+ * @top_task: the current top waiter
+ *
+ * Returns 0 or -EDEADLK.
+ */
+static int rt_mutex_adjust_prio_chain(struct task_struct *task,
+				      int deadlock_detect,
+				      struct rt_mutex *orig_lock,
+				      struct rt_mutex_waiter *orig_waiter,
+				      struct task_struct *top_task)
+{
+	struct rt_mutex *lock;
+	struct rt_mutex_waiter *waiter, *top_waiter = orig_waiter;
+	int detect_deadlock, ret = 0, depth = 0;
+	unsigned long flags;
+
+	detect_deadlock = debug_rt_mutex_detect_deadlock(orig_waiter,
+							 deadlock_detect);
+
+	/*
+	 * The (de)boosting is a step by step approach with a lot of
+	 * pitfalls. We want this to be preemptible and we want hold a
+	 * maximum of two locks per step. So we have to check
+	 * carefully whether things change under us.
+	 */
+ again:
+	if (++depth > max_lock_depth) {
+		static int prev_max;
+
+		/*
+		 * Print this only once. If the admin changes the limit,
+		 * print a new message when reaching the limit again.
+		 */
+		if (prev_max != max_lock_depth) {
+			prev_max = max_lock_depth;
+			printk(KERN_WARNING "Maximum lock depth %d reached "
+			       "task: %s (%d)\n", max_lock_depth,
+			       top_task->comm, task_pid_nr(top_task));
+		}
+		put_task_struct(task);
+
+		return deadlock_detect ? -EDEADLK : 0;
+	}
+ retry:
+	/*
+	 * Task can not go away as we did a get_task() before !
+	 */
+	raw_spin_lock_irqsave(&task->pi_lock, flags);
+
+	waiter = task->pi_blocked_on;
+	/*
+	 * Check whether the end of the boosting chain has been
+	 * reached or the state of the chain has changed while we
+	 * dropped the locks.
+	 */
+	if (!waiter)
+		goto out_unlock_pi;
+
+	/*
+	 * Check the orig_waiter state. After we dropped the locks,
+	 * the previous owner of the lock might have released the lock.
+	 */
+	if (orig_waiter && !rt_mutex_owner(orig_lock))
+		goto out_unlock_pi;
+
+	/*
+	 * Drop out, when the task has no waiters. Note,
+	 * top_waiter can be NULL, when we are in the deboosting
+	 * mode!
+	 */
+	if (top_waiter && (!task_has_pi_waiters(task) ||
+			   top_waiter != task_top_pi_waiter(task)))
+		goto out_unlock_pi;
+
+	/*
+	 * When deadlock detection is off then we check, if further
+	 * priority adjustment is necessary.
+	 */
+	if (!detect_deadlock && waiter->list_entry.prio == task->prio)
+		goto out_unlock_pi;
+
+	lock = waiter->lock;
+	if (!raw_spin_trylock(&lock->wait_lock)) {
+		raw_spin_unlock_irqrestore(&task->pi_lock, flags);
+		cpu_relax();
+		goto retry;
+	}
+
+	/* Deadlock detection */
+	if (lock == orig_lock || rt_mutex_owner(lock) == top_task) {
+		debug_rt_mutex_deadlock(deadlock_detect, orig_waiter, lock);
+		raw_spin_unlock(&lock->wait_lock);
+		ret = deadlock_detect ? -EDEADLK : 0;
+		goto out_unlock_pi;
+	}
+
+	top_waiter = rt_mutex_top_waiter(lock);
+
+	/* Requeue the waiter */
+	plist_del(&waiter->list_entry, &lock->wait_list);
+	waiter->list_entry.prio = task->prio;
+	plist_add(&waiter->list_entry, &lock->wait_list);
+
+	/* Release the task */
+	raw_spin_unlock_irqrestore(&task->pi_lock, flags);
+	if (!rt_mutex_owner(lock)) {
+		/*
+		 * If the requeue above changed the top waiter, then we need
+		 * to wake the new top waiter up to try to get the lock.
+		 */
+
+		if (top_waiter != rt_mutex_top_waiter(lock))
+			wake_up_process(rt_mutex_top_waiter(lock)->task);
+		raw_spin_unlock(&lock->wait_lock);
+		goto out_put_task;
+	}
+	put_task_struct(task);
+
+	/* Grab the next task */
+	task = rt_mutex_owner(lock);
+	get_task_struct(task);
+	raw_spin_lock_irqsave(&task->pi_lock, flags);
+
+	if (waiter == rt_mutex_top_waiter(lock)) {
+		/* Boost the owner */
+		plist_del(&top_waiter->pi_list_entry, &task->pi_waiters);
+		waiter->pi_list_entry.prio = waiter->list_entry.prio;
+		plist_add(&waiter->pi_list_entry, &task->pi_waiters);
+		__rt_mutex_adjust_prio(task);
+
+	} else if (top_waiter == waiter) {
+		/* Deboost the owner */
+		plist_del(&waiter->pi_list_entry, &task->pi_waiters);
+		waiter = rt_mutex_top_waiter(lock);
+		waiter->pi_list_entry.prio = waiter->list_entry.prio;
+		plist_add(&waiter->pi_list_entry, &task->pi_waiters);
+		__rt_mutex_adjust_prio(task);
+	}
+
+	raw_spin_unlock_irqrestore(&task->pi_lock, flags);
+
+	top_waiter = rt_mutex_top_waiter(lock);
+	raw_spin_unlock(&lock->wait_lock);
+
+	if (!detect_deadlock && waiter != top_waiter)
+		goto out_put_task;
+
+	goto again;
+
+ out_unlock_pi:
+	raw_spin_unlock_irqrestore(&task->pi_lock, flags);
+ out_put_task:
+	put_task_struct(task);
+
+	return ret;
+}
+
+/*
+ * Try to take an rt-mutex
+ *
+ * Must be called with lock->wait_lock held.
+ *
+ * @lock:   the lock to be acquired.
+ * @task:   the task which wants to acquire the lock
+ * @waiter: the waiter that is queued to the lock's wait list. (could be NULL)
+ */
+static int try_to_take_rt_mutex(struct rt_mutex *lock, struct task_struct *task,
+		struct rt_mutex_waiter *waiter)
+{
+	/*
+	 * We have to be careful here if the atomic speedups are
+	 * enabled, such that, when
+	 *  - no other waiter is on the lock
+	 *  - the lock has been released since we did the cmpxchg
+	 * the lock can be released or taken while we are doing the
+	 * checks and marking the lock with RT_MUTEX_HAS_WAITERS.
+	 *
+	 * The atomic acquire/release aware variant of
+	 * mark_rt_mutex_waiters uses a cmpxchg loop. After setting
+	 * the WAITERS bit, the atomic release / acquire can not
+	 * happen anymore and lock->wait_lock protects us from the
+	 * non-atomic case.
+	 *
+	 * Note, that this might set lock->owner =
+	 * RT_MUTEX_HAS_WAITERS in the case the lock is not contended
+	 * any more. This is fixed up when we take the ownership.
+	 * This is the transitional state explained at the top of this file.
+	 */
+	mark_rt_mutex_waiters(lock);
+
+	if (rt_mutex_owner(lock))
+		return 0;
+
+	/*
+	 * It will get the lock because of one of these conditions:
+	 * 1) there is no waiter
+	 * 2) higher priority than waiters
+	 * 3) it is top waiter
+	 */
+	if (rt_mutex_has_waiters(lock)) {
+		if (task->prio >= rt_mutex_top_waiter(lock)->list_entry.prio) {
+			if (!waiter || waiter != rt_mutex_top_waiter(lock))
+				return 0;
+		}
+	}
+
+	if (waiter || rt_mutex_has_waiters(lock)) {
+		unsigned long flags;
+		struct rt_mutex_waiter *top;
+
+		raw_spin_lock_irqsave(&task->pi_lock, flags);
+
+		/* remove the queued waiter. */
+		if (waiter) {
+			plist_del(&waiter->list_entry, &lock->wait_list);
+			task->pi_blocked_on = NULL;
+		}
+
+		/*
+		 * We have to enqueue the top waiter(if it exists) into
+		 * task->pi_waiters list.
+		 */
+		if (rt_mutex_has_waiters(lock)) {
+			top = rt_mutex_top_waiter(lock);
+			top->pi_list_entry.prio = top->list_entry.prio;
+			plist_add(&top->pi_list_entry, &task->pi_waiters);
+		}
+		raw_spin_unlock_irqrestore(&task->pi_lock, flags);
+	}
+
+	/* We got the lock. */
+	debug_rt_mutex_lock(lock);
+
+	rt_mutex_set_owner(lock, task);
+
+	rt_mutex_deadlock_account_lock(lock, task);
+
+	return 1;
+}
+
+/*
+ * Task blocks on lock.
+ *
+ * Prepare waiter and propagate pi chain
+ *
+ * This must be called with lock->wait_lock held.
+ */
+static int task_blocks_on_rt_mutex(struct rt_mutex *lock,
+				   struct rt_mutex_waiter *waiter,
+				   struct task_struct *task,
+				   int detect_deadlock)
+{
+	struct task_struct *owner = rt_mutex_owner(lock);
+	struct rt_mutex_waiter *top_waiter = waiter;
+	unsigned long flags;
+	int chain_walk = 0, res;
+
+	raw_spin_lock_irqsave(&task->pi_lock, flags);
+	__rt_mutex_adjust_prio(task);
+	waiter->task = task;
+	waiter->lock = lock;
+	plist_node_init(&waiter->list_entry, task->prio);
+	plist_node_init(&waiter->pi_list_entry, task->prio);
+
+	/* Get the top priority waiter on the lock */
+	if (rt_mutex_has_waiters(lock))
+		top_waiter = rt_mutex_top_waiter(lock);
+	plist_add(&waiter->list_entry, &lock->wait_list);
+
+	task->pi_blocked_on = waiter;
+
+	raw_spin_unlock_irqrestore(&task->pi_lock, flags);
+
+	if (!owner)
+		return 0;
+
+	if (waiter == rt_mutex_top_waiter(lock)) {
+		raw_spin_lock_irqsave(&owner->pi_lock, flags);
+		plist_del(&top_waiter->pi_list_entry, &owner->pi_waiters);
+		plist_add(&waiter->pi_list_entry, &owner->pi_waiters);
+
+		__rt_mutex_adjust_prio(owner);
+		if (owner->pi_blocked_on)
+			chain_walk = 1;
+		raw_spin_unlock_irqrestore(&owner->pi_lock, flags);
+	}
+	else if (debug_rt_mutex_detect_deadlock(waiter, detect_deadlock))
+		chain_walk = 1;
+
+	if (!chain_walk)
+		return 0;
+
+	/*
+	 * The owner can't disappear while holding a lock,
+	 * so the owner struct is protected by wait_lock.
+	 * Gets dropped in rt_mutex_adjust_prio_chain()!
+	 */
+	get_task_struct(owner);
+
+	raw_spin_unlock(&lock->wait_lock);
+
+	res = rt_mutex_adjust_prio_chain(owner, detect_deadlock, lock, waiter,
+					 task);
+
+	raw_spin_lock(&lock->wait_lock);
+
+	return res;
+}
+
+/*
+ * Wake up the next waiter on the lock.
+ *
+ * Remove the top waiter from the current tasks waiter list and wake it up.
+ *
+ * Called with lock->wait_lock held.
+ */
+static void wakeup_next_waiter(struct rt_mutex *lock)
+{
+	struct rt_mutex_waiter *waiter;
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&current->pi_lock, flags);
+
+	waiter = rt_mutex_top_waiter(lock);
+
+	/*
+	 * Remove it from current->pi_waiters. We do not adjust a
+	 * possible priority boost right now. We execute wakeup in the
+	 * boosted mode and go back to normal after releasing
+	 * lock->wait_lock.
+	 */
+	plist_del(&waiter->pi_list_entry, &current->pi_waiters);
+
+	rt_mutex_set_owner(lock, NULL);
+
+	raw_spin_unlock_irqrestore(&current->pi_lock, flags);
+
+	wake_up_process(waiter->task);
+}
+
+/*
+ * Remove a waiter from a lock and give up
+ *
+ * Must be called with lock->wait_lock held and
+ * have just failed to try_to_take_rt_mutex().
+ */
+static void remove_waiter(struct rt_mutex *lock,
+			  struct rt_mutex_waiter *waiter)
+{
+	int first = (waiter == rt_mutex_top_waiter(lock));
+	struct task_struct *owner = rt_mutex_owner(lock);
+	unsigned long flags;
+	int chain_walk = 0;
+
+	raw_spin_lock_irqsave(&current->pi_lock, flags);
+	plist_del(&waiter->list_entry, &lock->wait_list);
+	current->pi_blocked_on = NULL;
+	raw_spin_unlock_irqrestore(&current->pi_lock, flags);
+
+	if (!owner)
+		return;
+
+	if (first) {
+
+		raw_spin_lock_irqsave(&owner->pi_lock, flags);
+
+		plist_del(&waiter->pi_list_entry, &owner->pi_waiters);
+
+		if (rt_mutex_has_waiters(lock)) {
+			struct rt_mutex_waiter *next;
+
+			next = rt_mutex_top_waiter(lock);
+			plist_add(&next->pi_list_entry, &owner->pi_waiters);
+		}
+		__rt_mutex_adjust_prio(owner);
+
+		if (owner->pi_blocked_on)
+			chain_walk = 1;
+
+		raw_spin_unlock_irqrestore(&owner->pi_lock, flags);
+	}
+
+	WARN_ON(!plist_node_empty(&waiter->pi_list_entry));
+
+	if (!chain_walk)
+		return;
+
+	/* gets dropped in rt_mutex_adjust_prio_chain()! */
+	get_task_struct(owner);
+
+	raw_spin_unlock(&lock->wait_lock);
+
+	rt_mutex_adjust_prio_chain(owner, 0, lock, NULL, current);
+
+	raw_spin_lock(&lock->wait_lock);
+}
+
+/*
+ * Recheck the pi chain, in case we got a priority setting
+ *
+ * Called from sched_setscheduler
+ */
+void rt_mutex_adjust_pi(struct task_struct *task)
+{
+	struct rt_mutex_waiter *waiter;
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&task->pi_lock, flags);
+
+	waiter = task->pi_blocked_on;
+	if (!waiter || waiter->list_entry.prio == task->prio) {
+		raw_spin_unlock_irqrestore(&task->pi_lock, flags);
+		return;
+	}
+
+	raw_spin_unlock_irqrestore(&task->pi_lock, flags);
+
+	/* gets dropped in rt_mutex_adjust_prio_chain()! */
+	get_task_struct(task);
+	rt_mutex_adjust_prio_chain(task, 0, NULL, NULL, task);
+}
+
+/**
+ * __rt_mutex_slowlock() - Perform the wait-wake-try-to-take loop
+ * @lock:		 the rt_mutex to take
+ * @state:		 the state the task should block in (TASK_INTERRUPTIBLE
+ * 			 or TASK_UNINTERRUPTIBLE)
+ * @timeout:		 the pre-initialized and started timer, or NULL for none
+ * @waiter:		 the pre-initialized rt_mutex_waiter
+ *
+ * lock->wait_lock must be held by the caller.
+ */
+static int __sched
+__rt_mutex_slowlock(struct rt_mutex *lock, int state,
+		    struct hrtimer_sleeper *timeout,
+		    struct rt_mutex_waiter *waiter)
+{
+	int ret = 0;
+
+	for (;;) {
+		/* Try to acquire the lock: */
+		if (try_to_take_rt_mutex(lock, current, waiter))
+			break;
+
+		/*
+		 * TASK_INTERRUPTIBLE checks for signals and
+		 * timeout. Ignored otherwise.
+		 */
+		if (unlikely(state == TASK_INTERRUPTIBLE)) {
+			/* Signal pending? */
+			if (signal_pending(current))
+				ret = -EINTR;
+			if (timeout && !timeout->task)
+				ret = -ETIMEDOUT;
+			if (ret)
+				break;
+		}
+
+		raw_spin_unlock(&lock->wait_lock);
+
+		debug_rt_mutex_print_deadlock(waiter);
+
+		schedule_rt_mutex(lock);
+
+		raw_spin_lock(&lock->wait_lock);
+		set_current_state(state);
+	}
+
+	return ret;
+}
+
+/*
+ * Slow path lock function:
+ */
+static int __sched
+rt_mutex_slowlock(struct rt_mutex *lock, int state,
+		  struct hrtimer_sleeper *timeout,
+		  int detect_deadlock)
+{
+	struct rt_mutex_waiter waiter;
+	int ret = 0;
+
+	debug_rt_mutex_init_waiter(&waiter);
+
+	raw_spin_lock(&lock->wait_lock);
+
+	/* Try to acquire the lock again: */
+	if (try_to_take_rt_mutex(lock, current, NULL)) {
+		raw_spin_unlock(&lock->wait_lock);
+		return 0;
+	}
+
+	set_current_state(state);
+
+	/* Setup the timer, when timeout != NULL */
+	if (unlikely(timeout)) {
+		hrtimer_start_expires(&timeout->timer, HRTIMER_MODE_ABS);
+		if (!hrtimer_active(&timeout->timer))
+			timeout->task = NULL;
+	}
+
+	ret = task_blocks_on_rt_mutex(lock, &waiter, current, detect_deadlock);
+
+	if (likely(!ret))
+		ret = __rt_mutex_slowlock(lock, state, timeout, &waiter);
+
+	set_current_state(TASK_RUNNING);
+
+	if (unlikely(ret))
+		remove_waiter(lock, &waiter);
+
+	/*
+	 * try_to_take_rt_mutex() sets the waiter bit
+	 * unconditionally. We might have to fix that up.
+	 */
+	fixup_rt_mutex_waiters(lock);
+
+	raw_spin_unlock(&lock->wait_lock);
+
+	/* Remove pending timer: */
+	if (unlikely(timeout))
+		hrtimer_cancel(&timeout->timer);
+
+	debug_rt_mutex_free_waiter(&waiter);
+
+	return ret;
+}
+
+/*
+ * Slow path try-lock function:
+ */
+static inline int
+rt_mutex_slowtrylock(struct rt_mutex *lock)
+{
+	int ret = 0;
+
+	raw_spin_lock(&lock->wait_lock);
+
+	if (likely(rt_mutex_owner(lock) != current)) {
+
+		ret = try_to_take_rt_mutex(lock, current, NULL);
+		/*
+		 * try_to_take_rt_mutex() sets the lock waiters
+		 * bit unconditionally. Clean this up.
+		 */
+		fixup_rt_mutex_waiters(lock);
+	}
+
+	raw_spin_unlock(&lock->wait_lock);
+
+	return ret;
+}
+
+/*
+ * Slow path to release a rt-mutex:
+ */
+static void __sched
+rt_mutex_slowunlock(struct rt_mutex *lock)
+{
+	raw_spin_lock(&lock->wait_lock);
+
+	debug_rt_mutex_unlock(lock);
+
+	rt_mutex_deadlock_account_unlock(current);
+
+	if (!rt_mutex_has_waiters(lock)) {
+		lock->owner = NULL;
+		raw_spin_unlock(&lock->wait_lock);
+		return;
+	}
+
+	wakeup_next_waiter(lock);
+
+	raw_spin_unlock(&lock->wait_lock);
+
+	/* Undo pi boosting if necessary: */
+	rt_mutex_adjust_prio(current);
+}
+
+/*
+ * debug aware fast / slowpath lock,trylock,unlock
+ *
+ * The atomic acquire/release ops are compiled away, when either the
+ * architecture does not support cmpxchg or when debugging is enabled.
+ */
+static inline int
+rt_mutex_fastlock(struct rt_mutex *lock, int state,
+		  int detect_deadlock,
+		  int (*slowfn)(struct rt_mutex *lock, int state,
+				struct hrtimer_sleeper *timeout,
+				int detect_deadlock))
+{
+	if (!detect_deadlock && likely(rt_mutex_cmpxchg(lock, NULL, current))) {
+		rt_mutex_deadlock_account_lock(lock, current);
+		return 0;
+	} else
+		return slowfn(lock, state, NULL, detect_deadlock);
+}
+
+static inline int
+rt_mutex_timed_fastlock(struct rt_mutex *lock, int state,
+			struct hrtimer_sleeper *timeout, int detect_deadlock,
+			int (*slowfn)(struct rt_mutex *lock, int state,
+				      struct hrtimer_sleeper *timeout,
+				      int detect_deadlock))
+{
+	if (!detect_deadlock && likely(rt_mutex_cmpxchg(lock, NULL, current))) {
+		rt_mutex_deadlock_account_lock(lock, current);
+		return 0;
+	} else
+		return slowfn(lock, state, timeout, detect_deadlock);
+}
+
+static inline int
+rt_mutex_fasttrylock(struct rt_mutex *lock,
+		     int (*slowfn)(struct rt_mutex *lock))
+{
+	if (likely(rt_mutex_cmpxchg(lock, NULL, current))) {
+		rt_mutex_deadlock_account_lock(lock, current);
+		return 1;
+	}
+	return slowfn(lock);
+}
+
+static inline void
+rt_mutex_fastunlock(struct rt_mutex *lock,
+		    void (*slowfn)(struct rt_mutex *lock))
+{
+	if (likely(rt_mutex_cmpxchg(lock, current, NULL)))
+		rt_mutex_deadlock_account_unlock(current);
+	else
+		slowfn(lock);
+}
+
+/**
+ * rt_mutex_lock - lock a rt_mutex
+ *
+ * @lock: the rt_mutex to be locked
+ */
+void __sched rt_mutex_lock(struct rt_mutex *lock)
+{
+	might_sleep();
+
+	rt_mutex_fastlock(lock, TASK_UNINTERRUPTIBLE, 0, rt_mutex_slowlock);
+}
+EXPORT_SYMBOL_GPL(rt_mutex_lock);
+
+/**
+ * rt_mutex_lock_interruptible - lock a rt_mutex interruptible
+ *
+ * @lock: 		the rt_mutex to be locked
+ * @detect_deadlock:	deadlock detection on/off
+ *
+ * Returns:
+ *  0 		on success
+ * -EINTR 	when interrupted by a signal
+ * -EDEADLK	when the lock would deadlock (when deadlock detection is on)
+ */
+int __sched rt_mutex_lock_interruptible(struct rt_mutex *lock,
+						 int detect_deadlock)
+{
+	might_sleep();
+
+	return rt_mutex_fastlock(lock, TASK_INTERRUPTIBLE,
+				 detect_deadlock, rt_mutex_slowlock);
+}
+EXPORT_SYMBOL_GPL(rt_mutex_lock_interruptible);
+
+/**
+ * rt_mutex_timed_lock - lock a rt_mutex interruptible
+ *			the timeout structure is provided
+ *			by the caller
+ *
+ * @lock: 		the rt_mutex to be locked
+ * @timeout:		timeout structure or NULL (no timeout)
+ * @detect_deadlock:	deadlock detection on/off
+ *
+ * Returns:
+ *  0 		on success
+ * -EINTR 	when interrupted by a signal
+ * -ETIMEDOUT	when the timeout expired
+ * -EDEADLK	when the lock would deadlock (when deadlock detection is on)
+ */
+int
+rt_mutex_timed_lock(struct rt_mutex *lock, struct hrtimer_sleeper *timeout,
+		    int detect_deadlock)
+{
+	might_sleep();
+
+	return rt_mutex_timed_fastlock(lock, TASK_INTERRUPTIBLE, timeout,
+				       detect_deadlock, rt_mutex_slowlock);
+}
+EXPORT_SYMBOL_GPL(rt_mutex_timed_lock);
+
+/**
+ * rt_mutex_trylock - try to lock a rt_mutex
+ *
+ * @lock:	the rt_mutex to be locked
+ *
+ * Returns 1 on success and 0 on contention
+ */
+int __sched rt_mutex_trylock(struct rt_mutex *lock)
+{
+	return rt_mutex_fasttrylock(lock, rt_mutex_slowtrylock);
+}
+EXPORT_SYMBOL_GPL(rt_mutex_trylock);
+
+/**
+ * rt_mutex_unlock - unlock a rt_mutex
+ *
+ * @lock: the rt_mutex to be unlocked
+ */
+void __sched rt_mutex_unlock(struct rt_mutex *lock)
+{
+	rt_mutex_fastunlock(lock, rt_mutex_slowunlock);
+}
+EXPORT_SYMBOL_GPL(rt_mutex_unlock);
+
+/**
+ * rt_mutex_destroy - mark a mutex unusable
+ * @lock: the mutex to be destroyed
+ *
+ * This function marks the mutex uninitialized, and any subsequent
+ * use of the mutex is forbidden. The mutex must not be locked when
+ * this function is called.
+ */
+void rt_mutex_destroy(struct rt_mutex *lock)
+{
+	WARN_ON(rt_mutex_is_locked(lock));
+#ifdef CONFIG_DEBUG_RT_MUTEXES
+	lock->magic = NULL;
+#endif
+}
+
+EXPORT_SYMBOL_GPL(rt_mutex_destroy);
+
+/**
+ * __rt_mutex_init - initialize the rt lock
+ *
+ * @lock: the rt lock to be initialized
+ *
+ * Initialize the rt lock to unlocked state.
+ *
+ * Initializing of a locked rt lock is not allowed
+ */
+void __rt_mutex_init(struct rt_mutex *lock, const char *name)
+{
+	lock->owner = NULL;
+	raw_spin_lock_init(&lock->wait_lock);
+	plist_head_init(&lock->wait_list);
+
+	debug_rt_mutex_init(lock, name);
+}
+EXPORT_SYMBOL_GPL(__rt_mutex_init);
+
+/**
+ * rt_mutex_init_proxy_locked - initialize and lock a rt_mutex on behalf of a
+ *				proxy owner
+ *
+ * @lock: 	the rt_mutex to be locked
+ * @proxy_owner:the task to set as owner
+ *
+ * No locking. Caller has to do serializing itself
+ * Special API call for PI-futex support
+ */
+void rt_mutex_init_proxy_locked(struct rt_mutex *lock,
+				struct task_struct *proxy_owner)
+{
+	__rt_mutex_init(lock, NULL);
+	debug_rt_mutex_proxy_lock(lock, proxy_owner);
+	rt_mutex_set_owner(lock, proxy_owner);
+	rt_mutex_deadlock_account_lock(lock, proxy_owner);
+}
+
+/**
+ * rt_mutex_proxy_unlock - release a lock on behalf of owner
+ *
+ * @lock: 	the rt_mutex to be locked
+ *
+ * No locking. Caller has to do serializing itself
+ * Special API call for PI-futex support
+ */
+void rt_mutex_proxy_unlock(struct rt_mutex *lock,
+			   struct task_struct *proxy_owner)
+{
+	debug_rt_mutex_proxy_unlock(lock);
+	rt_mutex_set_owner(lock, NULL);
+	rt_mutex_deadlock_account_unlock(proxy_owner);
+}
+
+/**
+ * rt_mutex_start_proxy_lock() - Start lock acquisition for another task
+ * @lock:		the rt_mutex to take
+ * @waiter:		the pre-initialized rt_mutex_waiter
+ * @task:		the task to prepare
+ * @detect_deadlock:	perform deadlock detection (1) or not (0)
+ *
+ * Returns:
+ *  0 - task blocked on lock
+ *  1 - acquired the lock for task, caller should wake it up
+ * <0 - error
+ *
+ * Special API call for FUTEX_REQUEUE_PI support.
+ */
+int rt_mutex_start_proxy_lock(struct rt_mutex *lock,
+			      struct rt_mutex_waiter *waiter,
+			      struct task_struct *task, int detect_deadlock)
+{
+	int ret;
+
+	raw_spin_lock(&lock->wait_lock);
+
+	if (try_to_take_rt_mutex(lock, task, NULL)) {
+		raw_spin_unlock(&lock->wait_lock);
+		return 1;
+	}
+
+	ret = task_blocks_on_rt_mutex(lock, waiter, task, detect_deadlock);
+
+	if (ret && !rt_mutex_owner(lock)) {
+		/*
+		 * Reset the return value. We might have
+		 * returned with -EDEADLK and the owner
+		 * released the lock while we were walking the
+		 * pi chain.  Let the waiter sort it out.
+		 */
+		ret = 0;
+	}
+
+	if (unlikely(ret))
+		remove_waiter(lock, waiter);
+
+	raw_spin_unlock(&lock->wait_lock);
+
+	debug_rt_mutex_print_deadlock(waiter);
+
+	return ret;
+}
+
+/**
+ * rt_mutex_next_owner - return the next owner of the lock
+ *
+ * @lock: the rt lock query
+ *
+ * Returns the next owner of the lock or NULL
+ *
+ * Caller has to serialize against other accessors to the lock
+ * itself.
+ *
+ * Special API call for PI-futex support
+ */
+struct task_struct *rt_mutex_next_owner(struct rt_mutex *lock)
+{
+	if (!rt_mutex_has_waiters(lock))
+		return NULL;
+
+	return rt_mutex_top_waiter(lock)->task;
+}
+
+/**
+ * rt_mutex_finish_proxy_lock() - Complete lock acquisition
+ * @lock:		the rt_mutex we were woken on
+ * @to:			the timeout, null if none. hrtimer should already have
+ * 			been started.
+ * @waiter:		the pre-initialized rt_mutex_waiter
+ * @detect_deadlock:	perform deadlock detection (1) or not (0)
+ *
+ * Complete the lock acquisition started our behalf by another thread.
+ *
+ * Returns:
+ *  0 - success
+ * <0 - error, one of -EINTR, -ETIMEDOUT, or -EDEADLK
+ *
+ * Special API call for PI-futex requeue support
+ */
+int rt_mutex_finish_proxy_lock(struct rt_mutex *lock,
+			       struct hrtimer_sleeper *to,
+			       struct rt_mutex_waiter *waiter,
+			       int detect_deadlock)
+{
+	int ret;
+
+	raw_spin_lock(&lock->wait_lock);
+
+	set_current_state(TASK_INTERRUPTIBLE);
+
+	ret = __rt_mutex_slowlock(lock, TASK_INTERRUPTIBLE, to, waiter);
+
+	set_current_state(TASK_RUNNING);
+
+	if (unlikely(ret))
+		remove_waiter(lock, waiter);
+
+	/*
+	 * try_to_take_rt_mutex() sets the waiter bit unconditionally. We might
+	 * have to fix that up.
+	 */
+	fixup_rt_mutex_waiters(lock);
+
+	raw_spin_unlock(&lock->wait_lock);
+
+	return ret;
+}
diff --git a/kernel/locking/rtmutex.h b/kernel/locking/rtmutex.h
new file mode 100644
index 000000000000..a1a1dd06421d
--- /dev/null
+++ b/kernel/locking/rtmutex.h
@@ -0,0 +1,26 @@
+/*
+ * RT-Mutexes: blocking mutual exclusion locks with PI support
+ *
+ * started by Ingo Molnar and Thomas Gleixner:
+ *
+ *  Copyright (C) 2004-2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
+ *  Copyright (C) 2006, Timesys Corp., Thomas Gleixner <tglx@timesys.com>
+ *
+ * This file contains macros used solely by rtmutex.c.
+ * Non-debug version.
+ */
+
+#define rt_mutex_deadlock_check(l)			(0)
+#define rt_mutex_deadlock_account_lock(m, t)		do { } while (0)
+#define rt_mutex_deadlock_account_unlock(l)		do { } while (0)
+#define debug_rt_mutex_init_waiter(w)			do { } while (0)
+#define debug_rt_mutex_free_waiter(w)			do { } while (0)
+#define debug_rt_mutex_lock(l)				do { } while (0)
+#define debug_rt_mutex_proxy_lock(l,p)			do { } while (0)
+#define debug_rt_mutex_proxy_unlock(l)			do { } while (0)
+#define debug_rt_mutex_unlock(l)			do { } while (0)
+#define debug_rt_mutex_init(m, n)			do { } while (0)
+#define debug_rt_mutex_deadlock(d, a ,l)		do { } while (0)
+#define debug_rt_mutex_print_deadlock(w)		do { } while (0)
+#define debug_rt_mutex_detect_deadlock(w,d)		(d)
+#define debug_rt_mutex_reset_waiter(w)			do { } while (0)
diff --git a/kernel/locking/rtmutex_common.h b/kernel/locking/rtmutex_common.h
new file mode 100644
index 000000000000..53a66c85261b
--- /dev/null
+++ b/kernel/locking/rtmutex_common.h
@@ -0,0 +1,126 @@
+/*
+ * RT Mutexes: blocking mutual exclusion locks with PI support
+ *
+ * started by Ingo Molnar and Thomas Gleixner:
+ *
+ *  Copyright (C) 2004-2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
+ *  Copyright (C) 2006, Timesys Corp., Thomas Gleixner <tglx@timesys.com>
+ *
+ * This file contains the private data structure and API definitions.
+ */
+
+#ifndef __KERNEL_RTMUTEX_COMMON_H
+#define __KERNEL_RTMUTEX_COMMON_H
+
+#include <linux/rtmutex.h>
+
+/*
+ * The rtmutex in kernel tester is independent of rtmutex debugging. We
+ * call schedule_rt_mutex_test() instead of schedule() for the tasks which
+ * belong to the tester. That way we can delay the wakeup path of those
+ * threads to provoke lock stealing and testing of  complex boosting scenarios.
+ */
+#ifdef CONFIG_RT_MUTEX_TESTER
+
+extern void schedule_rt_mutex_test(struct rt_mutex *lock);
+
+#define schedule_rt_mutex(_lock)				\
+  do {								\
+	if (!(current->flags & PF_MUTEX_TESTER))		\
+		schedule();					\
+	else							\
+		schedule_rt_mutex_test(_lock);			\
+  } while (0)
+
+#else
+# define schedule_rt_mutex(_lock)			schedule()
+#endif
+
+/*
+ * This is the control structure for tasks blocked on a rt_mutex,
+ * which is allocated on the kernel stack on of the blocked task.
+ *
+ * @list_entry:		pi node to enqueue into the mutex waiters list
+ * @pi_list_entry:	pi node to enqueue into the mutex owner waiters list
+ * @task:		task reference to the blocked task
+ */
+struct rt_mutex_waiter {
+	struct plist_node	list_entry;
+	struct plist_node	pi_list_entry;
+	struct task_struct	*task;
+	struct rt_mutex		*lock;
+#ifdef CONFIG_DEBUG_RT_MUTEXES
+	unsigned long		ip;
+	struct pid		*deadlock_task_pid;
+	struct rt_mutex		*deadlock_lock;
+#endif
+};
+
+/*
+ * Various helpers to access the waiters-plist:
+ */
+static inline int rt_mutex_has_waiters(struct rt_mutex *lock)
+{
+	return !plist_head_empty(&lock->wait_list);
+}
+
+static inline struct rt_mutex_waiter *
+rt_mutex_top_waiter(struct rt_mutex *lock)
+{
+	struct rt_mutex_waiter *w;
+
+	w = plist_first_entry(&lock->wait_list, struct rt_mutex_waiter,
+			       list_entry);
+	BUG_ON(w->lock != lock);
+
+	return w;
+}
+
+static inline int task_has_pi_waiters(struct task_struct *p)
+{
+	return !plist_head_empty(&p->pi_waiters);
+}
+
+static inline struct rt_mutex_waiter *
+task_top_pi_waiter(struct task_struct *p)
+{
+	return plist_first_entry(&p->pi_waiters, struct rt_mutex_waiter,
+				  pi_list_entry);
+}
+
+/*
+ * lock->owner state tracking:
+ */
+#define RT_MUTEX_HAS_WAITERS	1UL
+#define RT_MUTEX_OWNER_MASKALL	1UL
+
+static inline struct task_struct *rt_mutex_owner(struct rt_mutex *lock)
+{
+	return (struct task_struct *)
+		((unsigned long)lock->owner & ~RT_MUTEX_OWNER_MASKALL);
+}
+
+/*
+ * PI-futex support (proxy locking functions, etc.):
+ */
+extern struct task_struct *rt_mutex_next_owner(struct rt_mutex *lock);
+extern void rt_mutex_init_proxy_locked(struct rt_mutex *lock,
+				       struct task_struct *proxy_owner);
+extern void rt_mutex_proxy_unlock(struct rt_mutex *lock,
+				  struct task_struct *proxy_owner);
+extern int rt_mutex_start_proxy_lock(struct rt_mutex *lock,
+				     struct rt_mutex_waiter *waiter,
+				     struct task_struct *task,
+				     int detect_deadlock);
+extern int rt_mutex_finish_proxy_lock(struct rt_mutex *lock,
+				      struct hrtimer_sleeper *to,
+				      struct rt_mutex_waiter *waiter,
+				      int detect_deadlock);
+
+#ifdef CONFIG_DEBUG_RT_MUTEXES
+# include "rtmutex-debug.h"
+#else
+# include "rtmutex.h"
+#endif
+
+#endif
diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 3822ac0c4b27..6abb03dff5c0 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -1133,7 +1133,7 @@ void exit_rcu(void)
 
 #ifdef CONFIG_RCU_BOOST
 
-#include "../rtmutex_common.h"
+#include "../locking/rtmutex_common.h"
 
 #ifdef CONFIG_RCU_TRACE
 
diff --git a/kernel/rtmutex-debug.c b/kernel/rtmutex-debug.c
deleted file mode 100644
index 13b243a323fa..000000000000
--- a/kernel/rtmutex-debug.c
+++ /dev/null
@@ -1,187 +0,0 @@
-/*
- * RT-Mutexes: blocking mutual exclusion locks with PI support
- *
- * started by Ingo Molnar and Thomas Gleixner:
- *
- *  Copyright (C) 2004-2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
- *  Copyright (C) 2006 Timesys Corp., Thomas Gleixner <tglx@timesys.com>
- *
- * This code is based on the rt.c implementation in the preempt-rt tree.
- * Portions of said code are
- *
- *  Copyright (C) 2004  LynuxWorks, Inc., Igor Manyilov, Bill Huey
- *  Copyright (C) 2006  Esben Nielsen
- *  Copyright (C) 2006  Kihon Technologies Inc.,
- *			Steven Rostedt <rostedt@goodmis.org>
- *
- * See rt.c in preempt-rt for proper credits and further information
- */
-#include <linux/sched.h>
-#include <linux/sched/rt.h>
-#include <linux/delay.h>
-#include <linux/export.h>
-#include <linux/spinlock.h>
-#include <linux/kallsyms.h>
-#include <linux/syscalls.h>
-#include <linux/interrupt.h>
-#include <linux/plist.h>
-#include <linux/fs.h>
-#include <linux/debug_locks.h>
-
-#include "rtmutex_common.h"
-
-static void printk_task(struct task_struct *p)
-{
-	if (p)
-		printk("%16s:%5d [%p, %3d]", p->comm, task_pid_nr(p), p, p->prio);
-	else
-		printk("<none>");
-}
-
-static void printk_lock(struct rt_mutex *lock, int print_owner)
-{
-	if (lock->name)
-		printk(" [%p] {%s}\n",
-			lock, lock->name);
-	else
-		printk(" [%p] {%s:%d}\n",
-			lock, lock->file, lock->line);
-
-	if (print_owner && rt_mutex_owner(lock)) {
-		printk(".. ->owner: %p\n", lock->owner);
-		printk(".. held by:  ");
-		printk_task(rt_mutex_owner(lock));
-		printk("\n");
-	}
-}
-
-void rt_mutex_debug_task_free(struct task_struct *task)
-{
-	DEBUG_LOCKS_WARN_ON(!plist_head_empty(&task->pi_waiters));
-	DEBUG_LOCKS_WARN_ON(task->pi_blocked_on);
-}
-
-/*
- * We fill out the fields in the waiter to store the information about
- * the deadlock. We print when we return. act_waiter can be NULL in
- * case of a remove waiter operation.
- */
-void debug_rt_mutex_deadlock(int detect, struct rt_mutex_waiter *act_waiter,
-			     struct rt_mutex *lock)
-{
-	struct task_struct *task;
-
-	if (!debug_locks || detect || !act_waiter)
-		return;
-
-	task = rt_mutex_owner(act_waiter->lock);
-	if (task && task != current) {
-		act_waiter->deadlock_task_pid = get_pid(task_pid(task));
-		act_waiter->deadlock_lock = lock;
-	}
-}
-
-void debug_rt_mutex_print_deadlock(struct rt_mutex_waiter *waiter)
-{
-	struct task_struct *task;
-
-	if (!waiter->deadlock_lock || !debug_locks)
-		return;
-
-	rcu_read_lock();
-	task = pid_task(waiter->deadlock_task_pid, PIDTYPE_PID);
-	if (!task) {
-		rcu_read_unlock();
-		return;
-	}
-
-	if (!debug_locks_off()) {
-		rcu_read_unlock();
-		return;
-	}
-
-	printk("\n============================================\n");
-	printk(  "[ BUG: circular locking deadlock detected! ]\n");
-	printk("%s\n", print_tainted());
-	printk(  "--------------------------------------------\n");
-	printk("%s/%d is deadlocking current task %s/%d\n\n",
-	       task->comm, task_pid_nr(task),
-	       current->comm, task_pid_nr(current));
-
-	printk("\n1) %s/%d is trying to acquire this lock:\n",
-	       current->comm, task_pid_nr(current));
-	printk_lock(waiter->lock, 1);
-
-	printk("\n2) %s/%d is blocked on this lock:\n",
-		task->comm, task_pid_nr(task));
-	printk_lock(waiter->deadlock_lock, 1);
-
-	debug_show_held_locks(current);
-	debug_show_held_locks(task);
-
-	printk("\n%s/%d's [blocked] stackdump:\n\n",
-		task->comm, task_pid_nr(task));
-	show_stack(task, NULL);
-	printk("\n%s/%d's [current] stackdump:\n\n",
-		current->comm, task_pid_nr(current));
-	dump_stack();
-	debug_show_all_locks();
-	rcu_read_unlock();
-
-	printk("[ turning off deadlock detection."
-	       "Please report this trace. ]\n\n");
-}
-
-void debug_rt_mutex_lock(struct rt_mutex *lock)
-{
-}
-
-void debug_rt_mutex_unlock(struct rt_mutex *lock)
-{
-	DEBUG_LOCKS_WARN_ON(rt_mutex_owner(lock) != current);
-}
-
-void
-debug_rt_mutex_proxy_lock(struct rt_mutex *lock, struct task_struct *powner)
-{
-}
-
-void debug_rt_mutex_proxy_unlock(struct rt_mutex *lock)
-{
-	DEBUG_LOCKS_WARN_ON(!rt_mutex_owner(lock));
-}
-
-void debug_rt_mutex_init_waiter(struct rt_mutex_waiter *waiter)
-{
-	memset(waiter, 0x11, sizeof(*waiter));
-	plist_node_init(&waiter->list_entry, MAX_PRIO);
-	plist_node_init(&waiter->pi_list_entry, MAX_PRIO);
-	waiter->deadlock_task_pid = NULL;
-}
-
-void debug_rt_mutex_free_waiter(struct rt_mutex_waiter *waiter)
-{
-	put_pid(waiter->deadlock_task_pid);
-	DEBUG_LOCKS_WARN_ON(!plist_node_empty(&waiter->list_entry));
-	DEBUG_LOCKS_WARN_ON(!plist_node_empty(&waiter->pi_list_entry));
-	memset(waiter, 0x22, sizeof(*waiter));
-}
-
-void debug_rt_mutex_init(struct rt_mutex *lock, const char *name)
-{
-	/*
-	 * Make sure we are not reinitializing a held lock:
-	 */
-	debug_check_no_locks_freed((void *)lock, sizeof(*lock));
-	lock->name = name;
-}
-
-void
-rt_mutex_deadlock_account_lock(struct rt_mutex *lock, struct task_struct *task)
-{
-}
-
-void rt_mutex_deadlock_account_unlock(struct task_struct *task)
-{
-}
-
diff --git a/kernel/rtmutex-debug.h b/kernel/rtmutex-debug.h
deleted file mode 100644
index 14193d596d78..000000000000
--- a/kernel/rtmutex-debug.h
+++ /dev/null
@@ -1,33 +0,0 @@
-/*
- * RT-Mutexes: blocking mutual exclusion locks with PI support
- *
- * started by Ingo Molnar and Thomas Gleixner:
- *
- *  Copyright (C) 2004-2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
- *  Copyright (C) 2006, Timesys Corp., Thomas Gleixner <tglx@timesys.com>
- *
- * This file contains macros used solely by rtmutex.c. Debug version.
- */
-
-extern void
-rt_mutex_deadlock_account_lock(struct rt_mutex *lock, struct task_struct *task);
-extern void rt_mutex_deadlock_account_unlock(struct task_struct *task);
-extern void debug_rt_mutex_init_waiter(struct rt_mutex_waiter *waiter);
-extern void debug_rt_mutex_free_waiter(struct rt_mutex_waiter *waiter);
-extern void debug_rt_mutex_init(struct rt_mutex *lock, const char *name);
-extern void debug_rt_mutex_lock(struct rt_mutex *lock);
-extern void debug_rt_mutex_unlock(struct rt_mutex *lock);
-extern void debug_rt_mutex_proxy_lock(struct rt_mutex *lock,
-				      struct task_struct *powner);
-extern void debug_rt_mutex_proxy_unlock(struct rt_mutex *lock);
-extern void debug_rt_mutex_deadlock(int detect, struct rt_mutex_waiter *waiter,
-				    struct rt_mutex *lock);
-extern void debug_rt_mutex_print_deadlock(struct rt_mutex_waiter *waiter);
-# define debug_rt_mutex_reset_waiter(w)			\
-	do { (w)->deadlock_lock = NULL; } while (0)
-
-static inline int debug_rt_mutex_detect_deadlock(struct rt_mutex_waiter *waiter,
-						 int detect)
-{
-	return (waiter != NULL);
-}
diff --git a/kernel/rtmutex-tester.c b/kernel/rtmutex-tester.c
deleted file mode 100644
index 1d96dd0d93c1..000000000000
--- a/kernel/rtmutex-tester.c
+++ /dev/null
@@ -1,420 +0,0 @@
-/*
- * RT-Mutex-tester: scriptable tester for rt mutexes
- *
- * started by Thomas Gleixner:
- *
- *  Copyright (C) 2006, Timesys Corp., Thomas Gleixner <tglx@timesys.com>
- *
- */
-#include <linux/device.h>
-#include <linux/kthread.h>
-#include <linux/export.h>
-#include <linux/sched.h>
-#include <linux/sched/rt.h>
-#include <linux/spinlock.h>
-#include <linux/timer.h>
-#include <linux/freezer.h>
-#include <linux/stat.h>
-
-#include "rtmutex.h"
-
-#define MAX_RT_TEST_THREADS	8
-#define MAX_RT_TEST_MUTEXES	8
-
-static spinlock_t rttest_lock;
-static atomic_t rttest_event;
-
-struct test_thread_data {
-	int			opcode;
-	int			opdata;
-	int			mutexes[MAX_RT_TEST_MUTEXES];
-	int			event;
-	struct device		dev;
-};
-
-static struct test_thread_data thread_data[MAX_RT_TEST_THREADS];
-static struct task_struct *threads[MAX_RT_TEST_THREADS];
-static struct rt_mutex mutexes[MAX_RT_TEST_MUTEXES];
-
-enum test_opcodes {
-	RTTEST_NOP = 0,
-	RTTEST_SCHEDOT,		/* 1 Sched other, data = nice */
-	RTTEST_SCHEDRT,		/* 2 Sched fifo, data = prio */
-	RTTEST_LOCK,		/* 3 Lock uninterruptible, data = lockindex */
-	RTTEST_LOCKNOWAIT,	/* 4 Lock uninterruptible no wait in wakeup, data = lockindex */
-	RTTEST_LOCKINT,		/* 5 Lock interruptible, data = lockindex */
-	RTTEST_LOCKINTNOWAIT,	/* 6 Lock interruptible no wait in wakeup, data = lockindex */
-	RTTEST_LOCKCONT,	/* 7 Continue locking after the wakeup delay */
-	RTTEST_UNLOCK,		/* 8 Unlock, data = lockindex */
-	/* 9, 10 - reserved for BKL commemoration */
-	RTTEST_SIGNAL = 11,	/* 11 Signal other test thread, data = thread id */
-	RTTEST_RESETEVENT = 98,	/* 98 Reset event counter */
-	RTTEST_RESET = 99,	/* 99 Reset all pending operations */
-};
-
-static int handle_op(struct test_thread_data *td, int lockwakeup)
-{
-	int i, id, ret = -EINVAL;
-
-	switch(td->opcode) {
-
-	case RTTEST_NOP:
-		return 0;
-
-	case RTTEST_LOCKCONT:
-		td->mutexes[td->opdata] = 1;
-		td->event = atomic_add_return(1, &rttest_event);
-		return 0;
-
-	case RTTEST_RESET:
-		for (i = 0; i < MAX_RT_TEST_MUTEXES; i++) {
-			if (td->mutexes[i] == 4) {
-				rt_mutex_unlock(&mutexes[i]);
-				td->mutexes[i] = 0;
-			}
-		}
-		return 0;
-
-	case RTTEST_RESETEVENT:
-		atomic_set(&rttest_event, 0);
-		return 0;
-
-	default:
-		if (lockwakeup)
-			return ret;
-	}
-
-	switch(td->opcode) {
-
-	case RTTEST_LOCK:
-	case RTTEST_LOCKNOWAIT:
-		id = td->opdata;
-		if (id < 0 || id >= MAX_RT_TEST_MUTEXES)
-			return ret;
-
-		td->mutexes[id] = 1;
-		td->event = atomic_add_return(1, &rttest_event);
-		rt_mutex_lock(&mutexes[id]);
-		td->event = atomic_add_return(1, &rttest_event);
-		td->mutexes[id] = 4;
-		return 0;
-
-	case RTTEST_LOCKINT:
-	case RTTEST_LOCKINTNOWAIT:
-		id = td->opdata;
-		if (id < 0 || id >= MAX_RT_TEST_MUTEXES)
-			return ret;
-
-		td->mutexes[id] = 1;
-		td->event = atomic_add_return(1, &rttest_event);
-		ret = rt_mutex_lock_interruptible(&mutexes[id], 0);
-		td->event = atomic_add_return(1, &rttest_event);
-		td->mutexes[id] = ret ? 0 : 4;
-		return ret ? -EINTR : 0;
-
-	case RTTEST_UNLOCK:
-		id = td->opdata;
-		if (id < 0 || id >= MAX_RT_TEST_MUTEXES || td->mutexes[id] != 4)
-			return ret;
-
-		td->event = atomic_add_return(1, &rttest_event);
-		rt_mutex_unlock(&mutexes[id]);
-		td->event = atomic_add_return(1, &rttest_event);
-		td->mutexes[id] = 0;
-		return 0;
-
-	default:
-		break;
-	}
-	return ret;
-}
-
-/*
- * Schedule replacement for rtsem_down(). Only called for threads with
- * PF_MUTEX_TESTER set.
- *
- * This allows us to have finegrained control over the event flow.
- *
- */
-void schedule_rt_mutex_test(struct rt_mutex *mutex)
-{
-	int tid, op, dat;
-	struct test_thread_data *td;
-
-	/* We have to lookup the task */
-	for (tid = 0; tid < MAX_RT_TEST_THREADS; tid++) {
-		if (threads[tid] == current)
-			break;
-	}
-
-	BUG_ON(tid == MAX_RT_TEST_THREADS);
-
-	td = &thread_data[tid];
-
-	op = td->opcode;
-	dat = td->opdata;
-
-	switch (op) {
-	case RTTEST_LOCK:
-	case RTTEST_LOCKINT:
-	case RTTEST_LOCKNOWAIT:
-	case RTTEST_LOCKINTNOWAIT:
-		if (mutex != &mutexes[dat])
-			break;
-
-		if (td->mutexes[dat] != 1)
-			break;
-
-		td->mutexes[dat] = 2;
-		td->event = atomic_add_return(1, &rttest_event);
-		break;
-
-	default:
-		break;
-	}
-
-	schedule();
-
-
-	switch (op) {
-	case RTTEST_LOCK:
-	case RTTEST_LOCKINT:
-		if (mutex != &mutexes[dat])
-			return;
-
-		if (td->mutexes[dat] != 2)
-			return;
-
-		td->mutexes[dat] = 3;
-		td->event = atomic_add_return(1, &rttest_event);
-		break;
-
-	case RTTEST_LOCKNOWAIT:
-	case RTTEST_LOCKINTNOWAIT:
-		if (mutex != &mutexes[dat])
-			return;
-
-		if (td->mutexes[dat] != 2)
-			return;
-
-		td->mutexes[dat] = 1;
-		td->event = atomic_add_return(1, &rttest_event);
-		return;
-
-	default:
-		return;
-	}
-
-	td->opcode = 0;
-
-	for (;;) {
-		set_current_state(TASK_INTERRUPTIBLE);
-
-		if (td->opcode > 0) {
-			int ret;
-
-			set_current_state(TASK_RUNNING);
-			ret = handle_op(td, 1);
-			set_current_state(TASK_INTERRUPTIBLE);
-			if (td->opcode == RTTEST_LOCKCONT)
-				break;
-			td->opcode = ret;
-		}
-
-		/* Wait for the next command to be executed */
-		schedule();
-	}
-
-	/* Restore previous command and data */
-	td->opcode = op;
-	td->opdata = dat;
-}
-
-static int test_func(void *data)
-{
-	struct test_thread_data *td = data;
-	int ret;
-
-	current->flags |= PF_MUTEX_TESTER;
-	set_freezable();
-	allow_signal(SIGHUP);
-
-	for(;;) {
-
-		set_current_state(TASK_INTERRUPTIBLE);
-
-		if (td->opcode > 0) {
-			set_current_state(TASK_RUNNING);
-			ret = handle_op(td, 0);
-			set_current_state(TASK_INTERRUPTIBLE);
-			td->opcode = ret;
-		}
-
-		/* Wait for the next command to be executed */
-		schedule();
-		try_to_freeze();
-
-		if (signal_pending(current))
-			flush_signals(current);
-
-		if(kthread_should_stop())
-			break;
-	}
-	return 0;
-}
-
-/**
- * sysfs_test_command - interface for test commands
- * @dev:	thread reference
- * @buf:	command for actual step
- * @count:	length of buffer
- *
- * command syntax:
- *
- * opcode:data
- */
-static ssize_t sysfs_test_command(struct device *dev, struct device_attribute *attr,
-				  const char *buf, size_t count)
-{
-	struct sched_param schedpar;
-	struct test_thread_data *td;
-	char cmdbuf[32];
-	int op, dat, tid, ret;
-
-	td = container_of(dev, struct test_thread_data, dev);
-	tid = td->dev.id;
-
-	/* strings from sysfs write are not 0 terminated! */
-	if (count >= sizeof(cmdbuf))
-		return -EINVAL;
-
-	/* strip of \n: */
-	if (buf[count-1] == '\n')
-		count--;
-	if (count < 1)
-		return -EINVAL;
-
-	memcpy(cmdbuf, buf, count);
-	cmdbuf[count] = 0;
-
-	if (sscanf(cmdbuf, "%d:%d", &op, &dat) != 2)
-		return -EINVAL;
-
-	switch (op) {
-	case RTTEST_SCHEDOT:
-		schedpar.sched_priority = 0;
-		ret = sched_setscheduler(threads[tid], SCHED_NORMAL, &schedpar);
-		if (ret)
-			return ret;
-		set_user_nice(current, 0);
-		break;
-
-	case RTTEST_SCHEDRT:
-		schedpar.sched_priority = dat;
-		ret = sched_setscheduler(threads[tid], SCHED_FIFO, &schedpar);
-		if (ret)
-			return ret;
-		break;
-
-	case RTTEST_SIGNAL:
-		send_sig(SIGHUP, threads[tid], 0);
-		break;
-
-	default:
-		if (td->opcode > 0)
-			return -EBUSY;
-		td->opdata = dat;
-		td->opcode = op;
-		wake_up_process(threads[tid]);
-	}
-
-	return count;
-}
-
-/**
- * sysfs_test_status - sysfs interface for rt tester
- * @dev:	thread to query
- * @buf:	char buffer to be filled with thread status info
- */
-static ssize_t sysfs_test_status(struct device *dev, struct device_attribute *attr,
-				 char *buf)
-{
-	struct test_thread_data *td;
-	struct task_struct *tsk;
-	char *curr = buf;
-	int i;
-
-	td = container_of(dev, struct test_thread_data, dev);
-	tsk = threads[td->dev.id];
-
-	spin_lock(&rttest_lock);
-
-	curr += sprintf(curr,
-		"O: %4d, E:%8d, S: 0x%08lx, P: %4d, N: %4d, B: %p, M:",
-		td->opcode, td->event, tsk->state,
-			(MAX_RT_PRIO - 1) - tsk->prio,
-			(MAX_RT_PRIO - 1) - tsk->normal_prio,
-		tsk->pi_blocked_on);
-
-	for (i = MAX_RT_TEST_MUTEXES - 1; i >=0 ; i--)
-		curr += sprintf(curr, "%d", td->mutexes[i]);
-
-	spin_unlock(&rttest_lock);
-
-	curr += sprintf(curr, ", T: %p, R: %p\n", tsk,
-			mutexes[td->dev.id].owner);
-
-	return curr - buf;
-}
-
-static DEVICE_ATTR(status, S_IRUSR, sysfs_test_status, NULL);
-static DEVICE_ATTR(command, S_IWUSR, NULL, sysfs_test_command);
-
-static struct bus_type rttest_subsys = {
-	.name = "rttest",
-	.dev_name = "rttest",
-};
-
-static int init_test_thread(int id)
-{
-	thread_data[id].dev.bus = &rttest_subsys;
-	thread_data[id].dev.id = id;
-
-	threads[id] = kthread_run(test_func, &thread_data[id], "rt-test-%d", id);
-	if (IS_ERR(threads[id]))
-		return PTR_ERR(threads[id]);
-
-	return device_register(&thread_data[id].dev);
-}
-
-static int init_rttest(void)
-{
-	int ret, i;
-
-	spin_lock_init(&rttest_lock);
-
-	for (i = 0; i < MAX_RT_TEST_MUTEXES; i++)
-		rt_mutex_init(&mutexes[i]);
-
-	ret = subsys_system_register(&rttest_subsys, NULL);
-	if (ret)
-		return ret;
-
-	for (i = 0; i < MAX_RT_TEST_THREADS; i++) {
-		ret = init_test_thread(i);
-		if (ret)
-			break;
-		ret = device_create_file(&thread_data[i].dev, &dev_attr_status);
-		if (ret)
-			break;
-		ret = device_create_file(&thread_data[i].dev, &dev_attr_command);
-		if (ret)
-			break;
-	}
-
-	printk("Initializing RT-Tester: %s\n", ret ? "Failed" : "OK" );
-
-	return ret;
-}
-
-device_initcall(init_rttest);
diff --git a/kernel/rtmutex.c b/kernel/rtmutex.c
deleted file mode 100644
index 0dd6aec1cb6a..000000000000
--- a/kernel/rtmutex.c
+++ /dev/null
@@ -1,1060 +0,0 @@
-/*
- * RT-Mutexes: simple blocking mutual exclusion locks with PI support
- *
- * started by Ingo Molnar and Thomas Gleixner.
- *
- *  Copyright (C) 2004-2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
- *  Copyright (C) 2005-2006 Timesys Corp., Thomas Gleixner <tglx@timesys.com>
- *  Copyright (C) 2005 Kihon Technologies Inc., Steven Rostedt
- *  Copyright (C) 2006 Esben Nielsen
- *
- *  See Documentation/rt-mutex-design.txt for details.
- */
-#include <linux/spinlock.h>
-#include <linux/export.h>
-#include <linux/sched.h>
-#include <linux/sched/rt.h>
-#include <linux/timer.h>
-
-#include "rtmutex_common.h"
-
-/*
- * lock->owner state tracking:
- *
- * lock->owner holds the task_struct pointer of the owner. Bit 0
- * is used to keep track of the "lock has waiters" state.
- *
- * owner	bit0
- * NULL		0	lock is free (fast acquire possible)
- * NULL		1	lock is free and has waiters and the top waiter
- *				is going to take the lock*
- * taskpointer	0	lock is held (fast release possible)
- * taskpointer	1	lock is held and has waiters**
- *
- * The fast atomic compare exchange based acquire and release is only
- * possible when bit 0 of lock->owner is 0.
- *
- * (*) It also can be a transitional state when grabbing the lock
- * with ->wait_lock is held. To prevent any fast path cmpxchg to the lock,
- * we need to set the bit0 before looking at the lock, and the owner may be
- * NULL in this small time, hence this can be a transitional state.
- *
- * (**) There is a small time when bit 0 is set but there are no
- * waiters. This can happen when grabbing the lock in the slow path.
- * To prevent a cmpxchg of the owner releasing the lock, we need to
- * set this bit before looking at the lock.
- */
-
-static void
-rt_mutex_set_owner(struct rt_mutex *lock, struct task_struct *owner)
-{
-	unsigned long val = (unsigned long)owner;
-
-	if (rt_mutex_has_waiters(lock))
-		val |= RT_MUTEX_HAS_WAITERS;
-
-	lock->owner = (struct task_struct *)val;
-}
-
-static inline void clear_rt_mutex_waiters(struct rt_mutex *lock)
-{
-	lock->owner = (struct task_struct *)
-			((unsigned long)lock->owner & ~RT_MUTEX_HAS_WAITERS);
-}
-
-static void fixup_rt_mutex_waiters(struct rt_mutex *lock)
-{
-	if (!rt_mutex_has_waiters(lock))
-		clear_rt_mutex_waiters(lock);
-}
-
-/*
- * We can speed up the acquire/release, if the architecture
- * supports cmpxchg and if there's no debugging state to be set up
- */
-#if defined(__HAVE_ARCH_CMPXCHG) && !defined(CONFIG_DEBUG_RT_MUTEXES)
-# define rt_mutex_cmpxchg(l,c,n)	(cmpxchg(&l->owner, c, n) == c)
-static inline void mark_rt_mutex_waiters(struct rt_mutex *lock)
-{
-	unsigned long owner, *p = (unsigned long *) &lock->owner;
-
-	do {
-		owner = *p;
-	} while (cmpxchg(p, owner, owner | RT_MUTEX_HAS_WAITERS) != owner);
-}
-#else
-# define rt_mutex_cmpxchg(l,c,n)	(0)
-static inline void mark_rt_mutex_waiters(struct rt_mutex *lock)
-{
-	lock->owner = (struct task_struct *)
-			((unsigned long)lock->owner | RT_MUTEX_HAS_WAITERS);
-}
-#endif
-
-/*
- * Calculate task priority from the waiter list priority
- *
- * Return task->normal_prio when the waiter list is empty or when
- * the waiter is not allowed to do priority boosting
- */
-int rt_mutex_getprio(struct task_struct *task)
-{
-	if (likely(!task_has_pi_waiters(task)))
-		return task->normal_prio;
-
-	return min(task_top_pi_waiter(task)->pi_list_entry.prio,
-		   task->normal_prio);
-}
-
-/*
- * Adjust the priority of a task, after its pi_waiters got modified.
- *
- * This can be both boosting and unboosting. task->pi_lock must be held.
- */
-static void __rt_mutex_adjust_prio(struct task_struct *task)
-{
-	int prio = rt_mutex_getprio(task);
-
-	if (task->prio != prio)
-		rt_mutex_setprio(task, prio);
-}
-
-/*
- * Adjust task priority (undo boosting). Called from the exit path of
- * rt_mutex_slowunlock() and rt_mutex_slowlock().
- *
- * (Note: We do this outside of the protection of lock->wait_lock to
- * allow the lock to be taken while or before we readjust the priority
- * of task. We do not use the spin_xx_mutex() variants here as we are
- * outside of the debug path.)
- */
-static void rt_mutex_adjust_prio(struct task_struct *task)
-{
-	unsigned long flags;
-
-	raw_spin_lock_irqsave(&task->pi_lock, flags);
-	__rt_mutex_adjust_prio(task);
-	raw_spin_unlock_irqrestore(&task->pi_lock, flags);
-}
-
-/*
- * Max number of times we'll walk the boosting chain:
- */
-int max_lock_depth = 1024;
-
-/*
- * Adjust the priority chain. Also used for deadlock detection.
- * Decreases task's usage by one - may thus free the task.
- *
- * @task: the task owning the mutex (owner) for which a chain walk is probably
- *	  needed
- * @deadlock_detect: do we have to carry out deadlock detection?
- * @orig_lock: the mutex (can be NULL if we are walking the chain to recheck
- * 	       things for a task that has just got its priority adjusted, and
- *	       is waiting on a mutex)
- * @orig_waiter: rt_mutex_waiter struct for the task that has just donated
- *		 its priority to the mutex owner (can be NULL in the case
- *		 depicted above or if the top waiter is gone away and we are
- *		 actually deboosting the owner)
- * @top_task: the current top waiter
- *
- * Returns 0 or -EDEADLK.
- */
-static int rt_mutex_adjust_prio_chain(struct task_struct *task,
-				      int deadlock_detect,
-				      struct rt_mutex *orig_lock,
-				      struct rt_mutex_waiter *orig_waiter,
-				      struct task_struct *top_task)
-{
-	struct rt_mutex *lock;
-	struct rt_mutex_waiter *waiter, *top_waiter = orig_waiter;
-	int detect_deadlock, ret = 0, depth = 0;
-	unsigned long flags;
-
-	detect_deadlock = debug_rt_mutex_detect_deadlock(orig_waiter,
-							 deadlock_detect);
-
-	/*
-	 * The (de)boosting is a step by step approach with a lot of
-	 * pitfalls. We want this to be preemptible and we want hold a
-	 * maximum of two locks per step. So we have to check
-	 * carefully whether things change under us.
-	 */
- again:
-	if (++depth > max_lock_depth) {
-		static int prev_max;
-
-		/*
-		 * Print this only once. If the admin changes the limit,
-		 * print a new message when reaching the limit again.
-		 */
-		if (prev_max != max_lock_depth) {
-			prev_max = max_lock_depth;
-			printk(KERN_WARNING "Maximum lock depth %d reached "
-			       "task: %s (%d)\n", max_lock_depth,
-			       top_task->comm, task_pid_nr(top_task));
-		}
-		put_task_struct(task);
-
-		return deadlock_detect ? -EDEADLK : 0;
-	}
- retry:
-	/*
-	 * Task can not go away as we did a get_task() before !
-	 */
-	raw_spin_lock_irqsave(&task->pi_lock, flags);
-
-	waiter = task->pi_blocked_on;
-	/*
-	 * Check whether the end of the boosting chain has been
-	 * reached or the state of the chain has changed while we
-	 * dropped the locks.
-	 */
-	if (!waiter)
-		goto out_unlock_pi;
-
-	/*
-	 * Check the orig_waiter state. After we dropped the locks,
-	 * the previous owner of the lock might have released the lock.
-	 */
-	if (orig_waiter && !rt_mutex_owner(orig_lock))
-		goto out_unlock_pi;
-
-	/*
-	 * Drop out, when the task has no waiters. Note,
-	 * top_waiter can be NULL, when we are in the deboosting
-	 * mode!
-	 */
-	if (top_waiter && (!task_has_pi_waiters(task) ||
-			   top_waiter != task_top_pi_waiter(task)))
-		goto out_unlock_pi;
-
-	/*
-	 * When deadlock detection is off then we check, if further
-	 * priority adjustment is necessary.
-	 */
-	if (!detect_deadlock && waiter->list_entry.prio == task->prio)
-		goto out_unlock_pi;
-
-	lock = waiter->lock;
-	if (!raw_spin_trylock(&lock->wait_lock)) {
-		raw_spin_unlock_irqrestore(&task->pi_lock, flags);
-		cpu_relax();
-		goto retry;
-	}
-
-	/* Deadlock detection */
-	if (lock == orig_lock || rt_mutex_owner(lock) == top_task) {
-		debug_rt_mutex_deadlock(deadlock_detect, orig_waiter, lock);
-		raw_spin_unlock(&lock->wait_lock);
-		ret = deadlock_detect ? -EDEADLK : 0;
-		goto out_unlock_pi;
-	}
-
-	top_waiter = rt_mutex_top_waiter(lock);
-
-	/* Requeue the waiter */
-	plist_del(&waiter->list_entry, &lock->wait_list);
-	waiter->list_entry.prio = task->prio;
-	plist_add(&waiter->list_entry, &lock->wait_list);
-
-	/* Release the task */
-	raw_spin_unlock_irqrestore(&task->pi_lock, flags);
-	if (!rt_mutex_owner(lock)) {
-		/*
-		 * If the requeue above changed the top waiter, then we need
-		 * to wake the new top waiter up to try to get the lock.
-		 */
-
-		if (top_waiter != rt_mutex_top_waiter(lock))
-			wake_up_process(rt_mutex_top_waiter(lock)->task);
-		raw_spin_unlock(&lock->wait_lock);
-		goto out_put_task;
-	}
-	put_task_struct(task);
-
-	/* Grab the next task */
-	task = rt_mutex_owner(lock);
-	get_task_struct(task);
-	raw_spin_lock_irqsave(&task->pi_lock, flags);
-
-	if (waiter == rt_mutex_top_waiter(lock)) {
-		/* Boost the owner */
-		plist_del(&top_waiter->pi_list_entry, &task->pi_waiters);
-		waiter->pi_list_entry.prio = waiter->list_entry.prio;
-		plist_add(&waiter->pi_list_entry, &task->pi_waiters);
-		__rt_mutex_adjust_prio(task);
-
-	} else if (top_waiter == waiter) {
-		/* Deboost the owner */
-		plist_del(&waiter->pi_list_entry, &task->pi_waiters);
-		waiter = rt_mutex_top_waiter(lock);
-		waiter->pi_list_entry.prio = waiter->list_entry.prio;
-		plist_add(&waiter->pi_list_entry, &task->pi_waiters);
-		__rt_mutex_adjust_prio(task);
-	}
-
-	raw_spin_unlock_irqrestore(&task->pi_lock, flags);
-
-	top_waiter = rt_mutex_top_waiter(lock);
-	raw_spin_unlock(&lock->wait_lock);
-
-	if (!detect_deadlock && waiter != top_waiter)
-		goto out_put_task;
-
-	goto again;
-
- out_unlock_pi:
-	raw_spin_unlock_irqrestore(&task->pi_lock, flags);
- out_put_task:
-	put_task_struct(task);
-
-	return ret;
-}
-
-/*
- * Try to take an rt-mutex
- *
- * Must be called with lock->wait_lock held.
- *
- * @lock:   the lock to be acquired.
- * @task:   the task which wants to acquire the lock
- * @waiter: the waiter that is queued to the lock's wait list. (could be NULL)
- */
-static int try_to_take_rt_mutex(struct rt_mutex *lock, struct task_struct *task,
-		struct rt_mutex_waiter *waiter)
-{
-	/*
-	 * We have to be careful here if the atomic speedups are
-	 * enabled, such that, when
-	 *  - no other waiter is on the lock
-	 *  - the lock has been released since we did the cmpxchg
-	 * the lock can be released or taken while we are doing the
-	 * checks and marking the lock with RT_MUTEX_HAS_WAITERS.
-	 *
-	 * The atomic acquire/release aware variant of
-	 * mark_rt_mutex_waiters uses a cmpxchg loop. After setting
-	 * the WAITERS bit, the atomic release / acquire can not
-	 * happen anymore and lock->wait_lock protects us from the
-	 * non-atomic case.
-	 *
-	 * Note, that this might set lock->owner =
-	 * RT_MUTEX_HAS_WAITERS in the case the lock is not contended
-	 * any more. This is fixed up when we take the ownership.
-	 * This is the transitional state explained at the top of this file.
-	 */
-	mark_rt_mutex_waiters(lock);
-
-	if (rt_mutex_owner(lock))
-		return 0;
-
-	/*
-	 * It will get the lock because of one of these conditions:
-	 * 1) there is no waiter
-	 * 2) higher priority than waiters
-	 * 3) it is top waiter
-	 */
-	if (rt_mutex_has_waiters(lock)) {
-		if (task->prio >= rt_mutex_top_waiter(lock)->list_entry.prio) {
-			if (!waiter || waiter != rt_mutex_top_waiter(lock))
-				return 0;
-		}
-	}
-
-	if (waiter || rt_mutex_has_waiters(lock)) {
-		unsigned long flags;
-		struct rt_mutex_waiter *top;
-
-		raw_spin_lock_irqsave(&task->pi_lock, flags);
-
-		/* remove the queued waiter. */
-		if (waiter) {
-			plist_del(&waiter->list_entry, &lock->wait_list);
-			task->pi_blocked_on = NULL;
-		}
-
-		/*
-		 * We have to enqueue the top waiter(if it exists) into
-		 * task->pi_waiters list.
-		 */
-		if (rt_mutex_has_waiters(lock)) {
-			top = rt_mutex_top_waiter(lock);
-			top->pi_list_entry.prio = top->list_entry.prio;
-			plist_add(&top->pi_list_entry, &task->pi_waiters);
-		}
-		raw_spin_unlock_irqrestore(&task->pi_lock, flags);
-	}
-
-	/* We got the lock. */
-	debug_rt_mutex_lock(lock);
-
-	rt_mutex_set_owner(lock, task);
-
-	rt_mutex_deadlock_account_lock(lock, task);
-
-	return 1;
-}
-
-/*
- * Task blocks on lock.
- *
- * Prepare waiter and propagate pi chain
- *
- * This must be called with lock->wait_lock held.
- */
-static int task_blocks_on_rt_mutex(struct rt_mutex *lock,
-				   struct rt_mutex_waiter *waiter,
-				   struct task_struct *task,
-				   int detect_deadlock)
-{
-	struct task_struct *owner = rt_mutex_owner(lock);
-	struct rt_mutex_waiter *top_waiter = waiter;
-	unsigned long flags;
-	int chain_walk = 0, res;
-
-	raw_spin_lock_irqsave(&task->pi_lock, flags);
-	__rt_mutex_adjust_prio(task);
-	waiter->task = task;
-	waiter->lock = lock;
-	plist_node_init(&waiter->list_entry, task->prio);
-	plist_node_init(&waiter->pi_list_entry, task->prio);
-
-	/* Get the top priority waiter on the lock */
-	if (rt_mutex_has_waiters(lock))
-		top_waiter = rt_mutex_top_waiter(lock);
-	plist_add(&waiter->list_entry, &lock->wait_list);
-
-	task->pi_blocked_on = waiter;
-
-	raw_spin_unlock_irqrestore(&task->pi_lock, flags);
-
-	if (!owner)
-		return 0;
-
-	if (waiter == rt_mutex_top_waiter(lock)) {
-		raw_spin_lock_irqsave(&owner->pi_lock, flags);
-		plist_del(&top_waiter->pi_list_entry, &owner->pi_waiters);
-		plist_add(&waiter->pi_list_entry, &owner->pi_waiters);
-
-		__rt_mutex_adjust_prio(owner);
-		if (owner->pi_blocked_on)
-			chain_walk = 1;
-		raw_spin_unlock_irqrestore(&owner->pi_lock, flags);
-	}
-	else if (debug_rt_mutex_detect_deadlock(waiter, detect_deadlock))
-		chain_walk = 1;
-
-	if (!chain_walk)
-		return 0;
-
-	/*
-	 * The owner can't disappear while holding a lock,
-	 * so the owner struct is protected by wait_lock.
-	 * Gets dropped in rt_mutex_adjust_prio_chain()!
-	 */
-	get_task_struct(owner);
-
-	raw_spin_unlock(&lock->wait_lock);
-
-	res = rt_mutex_adjust_prio_chain(owner, detect_deadlock, lock, waiter,
-					 task);
-
-	raw_spin_lock(&lock->wait_lock);
-
-	return res;
-}
-
-/*
- * Wake up the next waiter on the lock.
- *
- * Remove the top waiter from the current tasks waiter list and wake it up.
- *
- * Called with lock->wait_lock held.
- */
-static void wakeup_next_waiter(struct rt_mutex *lock)
-{
-	struct rt_mutex_waiter *waiter;
-	unsigned long flags;
-
-	raw_spin_lock_irqsave(&current->pi_lock, flags);
-
-	waiter = rt_mutex_top_waiter(lock);
-
-	/*
-	 * Remove it from current->pi_waiters. We do not adjust a
-	 * possible priority boost right now. We execute wakeup in the
-	 * boosted mode and go back to normal after releasing
-	 * lock->wait_lock.
-	 */
-	plist_del(&waiter->pi_list_entry, &current->pi_waiters);
-
-	rt_mutex_set_owner(lock, NULL);
-
-	raw_spin_unlock_irqrestore(&current->pi_lock, flags);
-
-	wake_up_process(waiter->task);
-}
-
-/*
- * Remove a waiter from a lock and give up
- *
- * Must be called with lock->wait_lock held and
- * have just failed to try_to_take_rt_mutex().
- */
-static void remove_waiter(struct rt_mutex *lock,
-			  struct rt_mutex_waiter *waiter)
-{
-	int first = (waiter == rt_mutex_top_waiter(lock));
-	struct task_struct *owner = rt_mutex_owner(lock);
-	unsigned long flags;
-	int chain_walk = 0;
-
-	raw_spin_lock_irqsave(&current->pi_lock, flags);
-	plist_del(&waiter->list_entry, &lock->wait_list);
-	current->pi_blocked_on = NULL;
-	raw_spin_unlock_irqrestore(&current->pi_lock, flags);
-
-	if (!owner)
-		return;
-
-	if (first) {
-
-		raw_spin_lock_irqsave(&owner->pi_lock, flags);
-
-		plist_del(&waiter->pi_list_entry, &owner->pi_waiters);
-
-		if (rt_mutex_has_waiters(lock)) {
-			struct rt_mutex_waiter *next;
-
-			next = rt_mutex_top_waiter(lock);
-			plist_add(&next->pi_list_entry, &owner->pi_waiters);
-		}
-		__rt_mutex_adjust_prio(owner);
-
-		if (owner->pi_blocked_on)
-			chain_walk = 1;
-
-		raw_spin_unlock_irqrestore(&owner->pi_lock, flags);
-	}
-
-	WARN_ON(!plist_node_empty(&waiter->pi_list_entry));
-
-	if (!chain_walk)
-		return;
-
-	/* gets dropped in rt_mutex_adjust_prio_chain()! */
-	get_task_struct(owner);
-
-	raw_spin_unlock(&lock->wait_lock);
-
-	rt_mutex_adjust_prio_chain(owner, 0, lock, NULL, current);
-
-	raw_spin_lock(&lock->wait_lock);
-}
-
-/*
- * Recheck the pi chain, in case we got a priority setting
- *
- * Called from sched_setscheduler
- */
-void rt_mutex_adjust_pi(struct task_struct *task)
-{
-	struct rt_mutex_waiter *waiter;
-	unsigned long flags;
-
-	raw_spin_lock_irqsave(&task->pi_lock, flags);
-
-	waiter = task->pi_blocked_on;
-	if (!waiter || waiter->list_entry.prio == task->prio) {
-		raw_spin_unlock_irqrestore(&task->pi_lock, flags);
-		return;
-	}
-
-	raw_spin_unlock_irqrestore(&task->pi_lock, flags);
-
-	/* gets dropped in rt_mutex_adjust_prio_chain()! */
-	get_task_struct(task);
-	rt_mutex_adjust_prio_chain(task, 0, NULL, NULL, task);
-}
-
-/**
- * __rt_mutex_slowlock() - Perform the wait-wake-try-to-take loop
- * @lock:		 the rt_mutex to take
- * @state:		 the state the task should block in (TASK_INTERRUPTIBLE
- * 			 or TASK_UNINTERRUPTIBLE)
- * @timeout:		 the pre-initialized and started timer, or NULL for none
- * @waiter:		 the pre-initialized rt_mutex_waiter
- *
- * lock->wait_lock must be held by the caller.
- */
-static int __sched
-__rt_mutex_slowlock(struct rt_mutex *lock, int state,
-		    struct hrtimer_sleeper *timeout,
-		    struct rt_mutex_waiter *waiter)
-{
-	int ret = 0;
-
-	for (;;) {
-		/* Try to acquire the lock: */
-		if (try_to_take_rt_mutex(lock, current, waiter))
-			break;
-
-		/*
-		 * TASK_INTERRUPTIBLE checks for signals and
-		 * timeout. Ignored otherwise.
-		 */
-		if (unlikely(state == TASK_INTERRUPTIBLE)) {
-			/* Signal pending? */
-			if (signal_pending(current))
-				ret = -EINTR;
-			if (timeout && !timeout->task)
-				ret = -ETIMEDOUT;
-			if (ret)
-				break;
-		}
-
-		raw_spin_unlock(&lock->wait_lock);
-
-		debug_rt_mutex_print_deadlock(waiter);
-
-		schedule_rt_mutex(lock);
-
-		raw_spin_lock(&lock->wait_lock);
-		set_current_state(state);
-	}
-
-	return ret;
-}
-
-/*
- * Slow path lock function:
- */
-static int __sched
-rt_mutex_slowlock(struct rt_mutex *lock, int state,
-		  struct hrtimer_sleeper *timeout,
-		  int detect_deadlock)
-{
-	struct rt_mutex_waiter waiter;
-	int ret = 0;
-
-	debug_rt_mutex_init_waiter(&waiter);
-
-	raw_spin_lock(&lock->wait_lock);
-
-	/* Try to acquire the lock again: */
-	if (try_to_take_rt_mutex(lock, current, NULL)) {
-		raw_spin_unlock(&lock->wait_lock);
-		return 0;
-	}
-
-	set_current_state(state);
-
-	/* Setup the timer, when timeout != NULL */
-	if (unlikely(timeout)) {
-		hrtimer_start_expires(&timeout->timer, HRTIMER_MODE_ABS);
-		if (!hrtimer_active(&timeout->timer))
-			timeout->task = NULL;
-	}
-
-	ret = task_blocks_on_rt_mutex(lock, &waiter, current, detect_deadlock);
-
-	if (likely(!ret))
-		ret = __rt_mutex_slowlock(lock, state, timeout, &waiter);
-
-	set_current_state(TASK_RUNNING);
-
-	if (unlikely(ret))
-		remove_waiter(lock, &waiter);
-
-	/*
-	 * try_to_take_rt_mutex() sets the waiter bit
-	 * unconditionally. We might have to fix that up.
-	 */
-	fixup_rt_mutex_waiters(lock);
-
-	raw_spin_unlock(&lock->wait_lock);
-
-	/* Remove pending timer: */
-	if (unlikely(timeout))
-		hrtimer_cancel(&timeout->timer);
-
-	debug_rt_mutex_free_waiter(&waiter);
-
-	return ret;
-}
-
-/*
- * Slow path try-lock function:
- */
-static inline int
-rt_mutex_slowtrylock(struct rt_mutex *lock)
-{
-	int ret = 0;
-
-	raw_spin_lock(&lock->wait_lock);
-
-	if (likely(rt_mutex_owner(lock) != current)) {
-
-		ret = try_to_take_rt_mutex(lock, current, NULL);
-		/*
-		 * try_to_take_rt_mutex() sets the lock waiters
-		 * bit unconditionally. Clean this up.
-		 */
-		fixup_rt_mutex_waiters(lock);
-	}
-
-	raw_spin_unlock(&lock->wait_lock);
-
-	return ret;
-}
-
-/*
- * Slow path to release a rt-mutex:
- */
-static void __sched
-rt_mutex_slowunlock(struct rt_mutex *lock)
-{
-	raw_spin_lock(&lock->wait_lock);
-
-	debug_rt_mutex_unlock(lock);
-
-	rt_mutex_deadlock_account_unlock(current);
-
-	if (!rt_mutex_has_waiters(lock)) {
-		lock->owner = NULL;
-		raw_spin_unlock(&lock->wait_lock);
-		return;
-	}
-
-	wakeup_next_waiter(lock);
-
-	raw_spin_unlock(&lock->wait_lock);
-
-	/* Undo pi boosting if necessary: */
-	rt_mutex_adjust_prio(current);
-}
-
-/*
- * debug aware fast / slowpath lock,trylock,unlock
- *
- * The atomic acquire/release ops are compiled away, when either the
- * architecture does not support cmpxchg or when debugging is enabled.
- */
-static inline int
-rt_mutex_fastlock(struct rt_mutex *lock, int state,
-		  int detect_deadlock,
-		  int (*slowfn)(struct rt_mutex *lock, int state,
-				struct hrtimer_sleeper *timeout,
-				int detect_deadlock))
-{
-	if (!detect_deadlock && likely(rt_mutex_cmpxchg(lock, NULL, current))) {
-		rt_mutex_deadlock_account_lock(lock, current);
-		return 0;
-	} else
-		return slowfn(lock, state, NULL, detect_deadlock);
-}
-
-static inline int
-rt_mutex_timed_fastlock(struct rt_mutex *lock, int state,
-			struct hrtimer_sleeper *timeout, int detect_deadlock,
-			int (*slowfn)(struct rt_mutex *lock, int state,
-				      struct hrtimer_sleeper *timeout,
-				      int detect_deadlock))
-{
-	if (!detect_deadlock && likely(rt_mutex_cmpxchg(lock, NULL, current))) {
-		rt_mutex_deadlock_account_lock(lock, current);
-		return 0;
-	} else
-		return slowfn(lock, state, timeout, detect_deadlock);
-}
-
-static inline int
-rt_mutex_fasttrylock(struct rt_mutex *lock,
-		     int (*slowfn)(struct rt_mutex *lock))
-{
-	if (likely(rt_mutex_cmpxchg(lock, NULL, current))) {
-		rt_mutex_deadlock_account_lock(lock, current);
-		return 1;
-	}
-	return slowfn(lock);
-}
-
-static inline void
-rt_mutex_fastunlock(struct rt_mutex *lock,
-		    void (*slowfn)(struct rt_mutex *lock))
-{
-	if (likely(rt_mutex_cmpxchg(lock, current, NULL)))
-		rt_mutex_deadlock_account_unlock(current);
-	else
-		slowfn(lock);
-}
-
-/**
- * rt_mutex_lock - lock a rt_mutex
- *
- * @lock: the rt_mutex to be locked
- */
-void __sched rt_mutex_lock(struct rt_mutex *lock)
-{
-	might_sleep();
-
-	rt_mutex_fastlock(lock, TASK_UNINTERRUPTIBLE, 0, rt_mutex_slowlock);
-}
-EXPORT_SYMBOL_GPL(rt_mutex_lock);
-
-/**
- * rt_mutex_lock_interruptible - lock a rt_mutex interruptible
- *
- * @lock: 		the rt_mutex to be locked
- * @detect_deadlock:	deadlock detection on/off
- *
- * Returns:
- *  0 		on success
- * -EINTR 	when interrupted by a signal
- * -EDEADLK	when the lock would deadlock (when deadlock detection is on)
- */
-int __sched rt_mutex_lock_interruptible(struct rt_mutex *lock,
-						 int detect_deadlock)
-{
-	might_sleep();
-
-	return rt_mutex_fastlock(lock, TASK_INTERRUPTIBLE,
-				 detect_deadlock, rt_mutex_slowlock);
-}
-EXPORT_SYMBOL_GPL(rt_mutex_lock_interruptible);
-
-/**
- * rt_mutex_timed_lock - lock a rt_mutex interruptible
- *			the timeout structure is provided
- *			by the caller
- *
- * @lock: 		the rt_mutex to be locked
- * @timeout:		timeout structure or NULL (no timeout)
- * @detect_deadlock:	deadlock detection on/off
- *
- * Returns:
- *  0 		on success
- * -EINTR 	when interrupted by a signal
- * -ETIMEDOUT	when the timeout expired
- * -EDEADLK	when the lock would deadlock (when deadlock detection is on)
- */
-int
-rt_mutex_timed_lock(struct rt_mutex *lock, struct hrtimer_sleeper *timeout,
-		    int detect_deadlock)
-{
-	might_sleep();
-
-	return rt_mutex_timed_fastlock(lock, TASK_INTERRUPTIBLE, timeout,
-				       detect_deadlock, rt_mutex_slowlock);
-}
-EXPORT_SYMBOL_GPL(rt_mutex_timed_lock);
-
-/**
- * rt_mutex_trylock - try to lock a rt_mutex
- *
- * @lock:	the rt_mutex to be locked
- *
- * Returns 1 on success and 0 on contention
- */
-int __sched rt_mutex_trylock(struct rt_mutex *lock)
-{
-	return rt_mutex_fasttrylock(lock, rt_mutex_slowtrylock);
-}
-EXPORT_SYMBOL_GPL(rt_mutex_trylock);
-
-/**
- * rt_mutex_unlock - unlock a rt_mutex
- *
- * @lock: the rt_mutex to be unlocked
- */
-void __sched rt_mutex_unlock(struct rt_mutex *lock)
-{
-	rt_mutex_fastunlock(lock, rt_mutex_slowunlock);
-}
-EXPORT_SYMBOL_GPL(rt_mutex_unlock);
-
-/**
- * rt_mutex_destroy - mark a mutex unusable
- * @lock: the mutex to be destroyed
- *
- * This function marks the mutex uninitialized, and any subsequent
- * use of the mutex is forbidden. The mutex must not be locked when
- * this function is called.
- */
-void rt_mutex_destroy(struct rt_mutex *lock)
-{
-	WARN_ON(rt_mutex_is_locked(lock));
-#ifdef CONFIG_DEBUG_RT_MUTEXES
-	lock->magic = NULL;
-#endif
-}
-
-EXPORT_SYMBOL_GPL(rt_mutex_destroy);
-
-/**
- * __rt_mutex_init - initialize the rt lock
- *
- * @lock: the rt lock to be initialized
- *
- * Initialize the rt lock to unlocked state.
- *
- * Initializing of a locked rt lock is not allowed
- */
-void __rt_mutex_init(struct rt_mutex *lock, const char *name)
-{
-	lock->owner = NULL;
-	raw_spin_lock_init(&lock->wait_lock);
-	plist_head_init(&lock->wait_list);
-
-	debug_rt_mutex_init(lock, name);
-}
-EXPORT_SYMBOL_GPL(__rt_mutex_init);
-
-/**
- * rt_mutex_init_proxy_locked - initialize and lock a rt_mutex on behalf of a
- *				proxy owner
- *
- * @lock: 	the rt_mutex to be locked
- * @proxy_owner:the task to set as owner
- *
- * No locking. Caller has to do serializing itself
- * Special API call for PI-futex support
- */
-void rt_mutex_init_proxy_locked(struct rt_mutex *lock,
-				struct task_struct *proxy_owner)
-{
-	__rt_mutex_init(lock, NULL);
-	debug_rt_mutex_proxy_lock(lock, proxy_owner);
-	rt_mutex_set_owner(lock, proxy_owner);
-	rt_mutex_deadlock_account_lock(lock, proxy_owner);
-}
-
-/**
- * rt_mutex_proxy_unlock - release a lock on behalf of owner
- *
- * @lock: 	the rt_mutex to be locked
- *
- * No locking. Caller has to do serializing itself
- * Special API call for PI-futex support
- */
-void rt_mutex_proxy_unlock(struct rt_mutex *lock,
-			   struct task_struct *proxy_owner)
-{
-	debug_rt_mutex_proxy_unlock(lock);
-	rt_mutex_set_owner(lock, NULL);
-	rt_mutex_deadlock_account_unlock(proxy_owner);
-}
-
-/**
- * rt_mutex_start_proxy_lock() - Start lock acquisition for another task
- * @lock:		the rt_mutex to take
- * @waiter:		the pre-initialized rt_mutex_waiter
- * @task:		the task to prepare
- * @detect_deadlock:	perform deadlock detection (1) or not (0)
- *
- * Returns:
- *  0 - task blocked on lock
- *  1 - acquired the lock for task, caller should wake it up
- * <0 - error
- *
- * Special API call for FUTEX_REQUEUE_PI support.
- */
-int rt_mutex_start_proxy_lock(struct rt_mutex *lock,
-			      struct rt_mutex_waiter *waiter,
-			      struct task_struct *task, int detect_deadlock)
-{
-	int ret;
-
-	raw_spin_lock(&lock->wait_lock);
-
-	if (try_to_take_rt_mutex(lock, task, NULL)) {
-		raw_spin_unlock(&lock->wait_lock);
-		return 1;
-	}
-
-	ret = task_blocks_on_rt_mutex(lock, waiter, task, detect_deadlock);
-
-	if (ret && !rt_mutex_owner(lock)) {
-		/*
-		 * Reset the return value. We might have
-		 * returned with -EDEADLK and the owner
-		 * released the lock while we were walking the
-		 * pi chain.  Let the waiter sort it out.
-		 */
-		ret = 0;
-	}
-
-	if (unlikely(ret))
-		remove_waiter(lock, waiter);
-
-	raw_spin_unlock(&lock->wait_lock);
-
-	debug_rt_mutex_print_deadlock(waiter);
-
-	return ret;
-}
-
-/**
- * rt_mutex_next_owner - return the next owner of the lock
- *
- * @lock: the rt lock query
- *
- * Returns the next owner of the lock or NULL
- *
- * Caller has to serialize against other accessors to the lock
- * itself.
- *
- * Special API call for PI-futex support
- */
-struct task_struct *rt_mutex_next_owner(struct rt_mutex *lock)
-{
-	if (!rt_mutex_has_waiters(lock))
-		return NULL;
-
-	return rt_mutex_top_waiter(lock)->task;
-}
-
-/**
- * rt_mutex_finish_proxy_lock() - Complete lock acquisition
- * @lock:		the rt_mutex we were woken on
- * @to:			the timeout, null if none. hrtimer should already have
- * 			been started.
- * @waiter:		the pre-initialized rt_mutex_waiter
- * @detect_deadlock:	perform deadlock detection (1) or not (0)
- *
- * Complete the lock acquisition started our behalf by another thread.
- *
- * Returns:
- *  0 - success
- * <0 - error, one of -EINTR, -ETIMEDOUT, or -EDEADLK
- *
- * Special API call for PI-futex requeue support
- */
-int rt_mutex_finish_proxy_lock(struct rt_mutex *lock,
-			       struct hrtimer_sleeper *to,
-			       struct rt_mutex_waiter *waiter,
-			       int detect_deadlock)
-{
-	int ret;
-
-	raw_spin_lock(&lock->wait_lock);
-
-	set_current_state(TASK_INTERRUPTIBLE);
-
-	ret = __rt_mutex_slowlock(lock, TASK_INTERRUPTIBLE, to, waiter);
-
-	set_current_state(TASK_RUNNING);
-
-	if (unlikely(ret))
-		remove_waiter(lock, waiter);
-
-	/*
-	 * try_to_take_rt_mutex() sets the waiter bit unconditionally. We might
-	 * have to fix that up.
-	 */
-	fixup_rt_mutex_waiters(lock);
-
-	raw_spin_unlock(&lock->wait_lock);
-
-	return ret;
-}
diff --git a/kernel/rtmutex.h b/kernel/rtmutex.h
deleted file mode 100644
index a1a1dd06421d..000000000000
--- a/kernel/rtmutex.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * RT-Mutexes: blocking mutual exclusion locks with PI support
- *
- * started by Ingo Molnar and Thomas Gleixner:
- *
- *  Copyright (C) 2004-2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
- *  Copyright (C) 2006, Timesys Corp., Thomas Gleixner <tglx@timesys.com>
- *
- * This file contains macros used solely by rtmutex.c.
- * Non-debug version.
- */
-
-#define rt_mutex_deadlock_check(l)			(0)
-#define rt_mutex_deadlock_account_lock(m, t)		do { } while (0)
-#define rt_mutex_deadlock_account_unlock(l)		do { } while (0)
-#define debug_rt_mutex_init_waiter(w)			do { } while (0)
-#define debug_rt_mutex_free_waiter(w)			do { } while (0)
-#define debug_rt_mutex_lock(l)				do { } while (0)
-#define debug_rt_mutex_proxy_lock(l,p)			do { } while (0)
-#define debug_rt_mutex_proxy_unlock(l)			do { } while (0)
-#define debug_rt_mutex_unlock(l)			do { } while (0)
-#define debug_rt_mutex_init(m, n)			do { } while (0)
-#define debug_rt_mutex_deadlock(d, a ,l)		do { } while (0)
-#define debug_rt_mutex_print_deadlock(w)		do { } while (0)
-#define debug_rt_mutex_detect_deadlock(w,d)		(d)
-#define debug_rt_mutex_reset_waiter(w)			do { } while (0)
diff --git a/kernel/rtmutex_common.h b/kernel/rtmutex_common.h
deleted file mode 100644
index 53a66c85261b..000000000000
--- a/kernel/rtmutex_common.h
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * RT Mutexes: blocking mutual exclusion locks with PI support
- *
- * started by Ingo Molnar and Thomas Gleixner:
- *
- *  Copyright (C) 2004-2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
- *  Copyright (C) 2006, Timesys Corp., Thomas Gleixner <tglx@timesys.com>
- *
- * This file contains the private data structure and API definitions.
- */
-
-#ifndef __KERNEL_RTMUTEX_COMMON_H
-#define __KERNEL_RTMUTEX_COMMON_H
-
-#include <linux/rtmutex.h>
-
-/*
- * The rtmutex in kernel tester is independent of rtmutex debugging. We
- * call schedule_rt_mutex_test() instead of schedule() for the tasks which
- * belong to the tester. That way we can delay the wakeup path of those
- * threads to provoke lock stealing and testing of  complex boosting scenarios.
- */
-#ifdef CONFIG_RT_MUTEX_TESTER
-
-extern void schedule_rt_mutex_test(struct rt_mutex *lock);
-
-#define schedule_rt_mutex(_lock)				\
-  do {								\
-	if (!(current->flags & PF_MUTEX_TESTER))		\
-		schedule();					\
-	else							\
-		schedule_rt_mutex_test(_lock);			\
-  } while (0)
-
-#else
-# define schedule_rt_mutex(_lock)			schedule()
-#endif
-
-/*
- * This is the control structure for tasks blocked on a rt_mutex,
- * which is allocated on the kernel stack on of the blocked task.
- *
- * @list_entry:		pi node to enqueue into the mutex waiters list
- * @pi_list_entry:	pi node to enqueue into the mutex owner waiters list
- * @task:		task reference to the blocked task
- */
-struct rt_mutex_waiter {
-	struct plist_node	list_entry;
-	struct plist_node	pi_list_entry;
-	struct task_struct	*task;
-	struct rt_mutex		*lock;
-#ifdef CONFIG_DEBUG_RT_MUTEXES
-	unsigned long		ip;
-	struct pid		*deadlock_task_pid;
-	struct rt_mutex		*deadlock_lock;
-#endif
-};
-
-/*
- * Various helpers to access the waiters-plist:
- */
-static inline int rt_mutex_has_waiters(struct rt_mutex *lock)
-{
-	return !plist_head_empty(&lock->wait_list);
-}
-
-static inline struct rt_mutex_waiter *
-rt_mutex_top_waiter(struct rt_mutex *lock)
-{
-	struct rt_mutex_waiter *w;
-
-	w = plist_first_entry(&lock->wait_list, struct rt_mutex_waiter,
-			       list_entry);
-	BUG_ON(w->lock != lock);
-
-	return w;
-}
-
-static inline int task_has_pi_waiters(struct task_struct *p)
-{
-	return !plist_head_empty(&p->pi_waiters);
-}
-
-static inline struct rt_mutex_waiter *
-task_top_pi_waiter(struct task_struct *p)
-{
-	return plist_first_entry(&p->pi_waiters, struct rt_mutex_waiter,
-				  pi_list_entry);
-}
-
-/*
- * lock->owner state tracking:
- */
-#define RT_MUTEX_HAS_WAITERS	1UL
-#define RT_MUTEX_OWNER_MASKALL	1UL
-
-static inline struct task_struct *rt_mutex_owner(struct rt_mutex *lock)
-{
-	return (struct task_struct *)
-		((unsigned long)lock->owner & ~RT_MUTEX_OWNER_MASKALL);
-}
-
-/*
- * PI-futex support (proxy locking functions, etc.):
- */
-extern struct task_struct *rt_mutex_next_owner(struct rt_mutex *lock);
-extern void rt_mutex_init_proxy_locked(struct rt_mutex *lock,
-				       struct task_struct *proxy_owner);
-extern void rt_mutex_proxy_unlock(struct rt_mutex *lock,
-				  struct task_struct *proxy_owner);
-extern int rt_mutex_start_proxy_lock(struct rt_mutex *lock,
-				     struct rt_mutex_waiter *waiter,
-				     struct task_struct *task,
-				     int detect_deadlock);
-extern int rt_mutex_finish_proxy_lock(struct rt_mutex *lock,
-				      struct hrtimer_sleeper *to,
-				      struct rt_mutex_waiter *waiter,
-				      int detect_deadlock);
-
-#ifdef CONFIG_DEBUG_RT_MUTEXES
-# include "rtmutex-debug.h"
-#else
-# include "rtmutex.h"
-#endif
-
-#endif
-- 
cgit 


From ed428bfc3caaa4b1e6cd15ea12c90c30291903f0 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 31 Oct 2013 18:19:28 +0100
Subject: locking: Move the rwsem code to kernel/locking/

Notably: changed lib/rwsem* targets from lib- to obj-, no idea about
the ramifications of that.

Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-g0kynfh5feriwc6p3h6kpbw6@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/Makefile                 |   2 +-
 kernel/locking/Makefile         |   4 +-
 kernel/locking/rwsem-spinlock.c | 296 ++++++++++++++++++++++++++++++++++++++++
 kernel/locking/rwsem-xadd.c     | 293 +++++++++++++++++++++++++++++++++++++++
 kernel/locking/rwsem.c          | 157 +++++++++++++++++++++
 kernel/rwsem.c                  | 157 ---------------------
 lib/Makefile                    |   2 -
 lib/rwsem-spinlock.c            | 296 ----------------------------------------
 lib/rwsem.c                     | 293 ---------------------------------------
 9 files changed, 750 insertions(+), 750 deletions(-)
 create mode 100644 kernel/locking/rwsem-spinlock.c
 create mode 100644 kernel/locking/rwsem-xadd.c
 create mode 100644 kernel/locking/rwsem.c
 delete mode 100644 kernel/rwsem.c
 delete mode 100644 lib/rwsem-spinlock.c
 delete mode 100644 lib/rwsem.c

diff --git a/kernel/Makefile b/kernel/Makefile
index 9c2ad1852223..1aef002aa56b 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -8,7 +8,7 @@ obj-y     = fork.o exec_domain.o panic.o \
 	    signal.o sys.o kmod.o workqueue.o pid.o task_work.o \
 	    extable.o params.o posix-timers.o \
 	    kthread.o sys_ni.o posix-cpu-timers.o \
-	    hrtimer.o rwsem.o nsproxy.o \
+	    hrtimer.o nsproxy.o \
 	    notifier.o ksysfs.o cred.o reboot.o \
 	    async.o range.o groups.o lglock.o smpboot.o
 
diff --git a/kernel/locking/Makefile b/kernel/locking/Makefile
index 59f66dec2bf9..b0e0d73516e3 100644
--- a/kernel/locking/Makefile
+++ b/kernel/locking/Makefile
@@ -1,5 +1,5 @@
 
-obj-y += mutex.o semaphore.o
+obj-y += mutex.o semaphore.o rwsem.o
 
 ifdef CONFIG_FUNCTION_TRACER
 CFLAGS_REMOVE_lockdep.o = -pg
@@ -20,3 +20,5 @@ obj-$(CONFIG_DEBUG_RT_MUTEXES) += rtmutex-debug.o
 obj-$(CONFIG_RT_MUTEX_TESTER) += rtmutex-tester.o
 obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock.o
 obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock_debug.o
+obj-$(CONFIG_RWSEM_GENERIC_SPINLOCK) += rwsem-spinlock.o
+obj-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += rwsem-xadd.o
\ No newline at end of file
diff --git a/kernel/locking/rwsem-spinlock.c b/kernel/locking/rwsem-spinlock.c
new file mode 100644
index 000000000000..9be8a9144978
--- /dev/null
+++ b/kernel/locking/rwsem-spinlock.c
@@ -0,0 +1,296 @@
+/* rwsem-spinlock.c: R/W semaphores: contention handling functions for
+ * generic spinlock implementation
+ *
+ * Copyright (c) 2001   David Howells (dhowells@redhat.com).
+ * - Derived partially from idea by Andrea Arcangeli <andrea@suse.de>
+ * - Derived also from comments by Linus
+ */
+#include <linux/rwsem.h>
+#include <linux/sched.h>
+#include <linux/export.h>
+
+enum rwsem_waiter_type {
+	RWSEM_WAITING_FOR_WRITE,
+	RWSEM_WAITING_FOR_READ
+};
+
+struct rwsem_waiter {
+	struct list_head list;
+	struct task_struct *task;
+	enum rwsem_waiter_type type;
+};
+
+int rwsem_is_locked(struct rw_semaphore *sem)
+{
+	int ret = 1;
+	unsigned long flags;
+
+	if (raw_spin_trylock_irqsave(&sem->wait_lock, flags)) {
+		ret = (sem->activity != 0);
+		raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
+	}
+	return ret;
+}
+EXPORT_SYMBOL(rwsem_is_locked);
+
+/*
+ * initialise the semaphore
+ */
+void __init_rwsem(struct rw_semaphore *sem, const char *name,
+		  struct lock_class_key *key)
+{
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+	/*
+	 * Make sure we are not reinitializing a held semaphore:
+	 */
+	debug_check_no_locks_freed((void *)sem, sizeof(*sem));
+	lockdep_init_map(&sem->dep_map, name, key, 0);
+#endif
+	sem->activity = 0;
+	raw_spin_lock_init(&sem->wait_lock);
+	INIT_LIST_HEAD(&sem->wait_list);
+}
+EXPORT_SYMBOL(__init_rwsem);
+
+/*
+ * handle the lock release when processes blocked on it that can now run
+ * - if we come here, then:
+ *   - the 'active count' _reached_ zero
+ *   - the 'waiting count' is non-zero
+ * - the spinlock must be held by the caller
+ * - woken process blocks are discarded from the list after having task zeroed
+ * - writers are only woken if wakewrite is non-zero
+ */
+static inline struct rw_semaphore *
+__rwsem_do_wake(struct rw_semaphore *sem, int wakewrite)
+{
+	struct rwsem_waiter *waiter;
+	struct task_struct *tsk;
+	int woken;
+
+	waiter = list_entry(sem->wait_list.next, struct rwsem_waiter, list);
+
+	if (waiter->type == RWSEM_WAITING_FOR_WRITE) {
+		if (wakewrite)
+			/* Wake up a writer. Note that we do not grant it the
+			 * lock - it will have to acquire it when it runs. */
+			wake_up_process(waiter->task);
+		goto out;
+	}
+
+	/* grant an infinite number of read locks to the front of the queue */
+	woken = 0;
+	do {
+		struct list_head *next = waiter->list.next;
+
+		list_del(&waiter->list);
+		tsk = waiter->task;
+		smp_mb();
+		waiter->task = NULL;
+		wake_up_process(tsk);
+		put_task_struct(tsk);
+		woken++;
+		if (next == &sem->wait_list)
+			break;
+		waiter = list_entry(next, struct rwsem_waiter, list);
+	} while (waiter->type != RWSEM_WAITING_FOR_WRITE);
+
+	sem->activity += woken;
+
+ out:
+	return sem;
+}
+
+/*
+ * wake a single writer
+ */
+static inline struct rw_semaphore *
+__rwsem_wake_one_writer(struct rw_semaphore *sem)
+{
+	struct rwsem_waiter *waiter;
+
+	waiter = list_entry(sem->wait_list.next, struct rwsem_waiter, list);
+	wake_up_process(waiter->task);
+
+	return sem;
+}
+
+/*
+ * get a read lock on the semaphore
+ */
+void __sched __down_read(struct rw_semaphore *sem)
+{
+	struct rwsem_waiter waiter;
+	struct task_struct *tsk;
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&sem->wait_lock, flags);
+
+	if (sem->activity >= 0 && list_empty(&sem->wait_list)) {
+		/* granted */
+		sem->activity++;
+		raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
+		goto out;
+	}
+
+	tsk = current;
+	set_task_state(tsk, TASK_UNINTERRUPTIBLE);
+
+	/* set up my own style of waitqueue */
+	waiter.task = tsk;
+	waiter.type = RWSEM_WAITING_FOR_READ;
+	get_task_struct(tsk);
+
+	list_add_tail(&waiter.list, &sem->wait_list);
+
+	/* we don't need to touch the semaphore struct anymore */
+	raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
+
+	/* wait to be given the lock */
+	for (;;) {
+		if (!waiter.task)
+			break;
+		schedule();
+		set_task_state(tsk, TASK_UNINTERRUPTIBLE);
+	}
+
+	tsk->state = TASK_RUNNING;
+ out:
+	;
+}
+
+/*
+ * trylock for reading -- returns 1 if successful, 0 if contention
+ */
+int __down_read_trylock(struct rw_semaphore *sem)
+{
+	unsigned long flags;
+	int ret = 0;
+
+
+	raw_spin_lock_irqsave(&sem->wait_lock, flags);
+
+	if (sem->activity >= 0 && list_empty(&sem->wait_list)) {
+		/* granted */
+		sem->activity++;
+		ret = 1;
+	}
+
+	raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
+
+	return ret;
+}
+
+/*
+ * get a write lock on the semaphore
+ */
+void __sched __down_write_nested(struct rw_semaphore *sem, int subclass)
+{
+	struct rwsem_waiter waiter;
+	struct task_struct *tsk;
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&sem->wait_lock, flags);
+
+	/* set up my own style of waitqueue */
+	tsk = current;
+	waiter.task = tsk;
+	waiter.type = RWSEM_WAITING_FOR_WRITE;
+	list_add_tail(&waiter.list, &sem->wait_list);
+
+	/* wait for someone to release the lock */
+	for (;;) {
+		/*
+		 * That is the key to support write lock stealing: allows the
+		 * task already on CPU to get the lock soon rather than put
+		 * itself into sleep and waiting for system woke it or someone
+		 * else in the head of the wait list up.
+		 */
+		if (sem->activity == 0)
+			break;
+		set_task_state(tsk, TASK_UNINTERRUPTIBLE);
+		raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
+		schedule();
+		raw_spin_lock_irqsave(&sem->wait_lock, flags);
+	}
+	/* got the lock */
+	sem->activity = -1;
+	list_del(&waiter.list);
+
+	raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
+}
+
+void __sched __down_write(struct rw_semaphore *sem)
+{
+	__down_write_nested(sem, 0);
+}
+
+/*
+ * trylock for writing -- returns 1 if successful, 0 if contention
+ */
+int __down_write_trylock(struct rw_semaphore *sem)
+{
+	unsigned long flags;
+	int ret = 0;
+
+	raw_spin_lock_irqsave(&sem->wait_lock, flags);
+
+	if (sem->activity == 0) {
+		/* got the lock */
+		sem->activity = -1;
+		ret = 1;
+	}
+
+	raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
+
+	return ret;
+}
+
+/*
+ * release a read lock on the semaphore
+ */
+void __up_read(struct rw_semaphore *sem)
+{
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&sem->wait_lock, flags);
+
+	if (--sem->activity == 0 && !list_empty(&sem->wait_list))
+		sem = __rwsem_wake_one_writer(sem);
+
+	raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
+}
+
+/*
+ * release a write lock on the semaphore
+ */
+void __up_write(struct rw_semaphore *sem)
+{
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&sem->wait_lock, flags);
+
+	sem->activity = 0;
+	if (!list_empty(&sem->wait_list))
+		sem = __rwsem_do_wake(sem, 1);
+
+	raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
+}
+
+/*
+ * downgrade a write lock into a read lock
+ * - just wake up any readers at the front of the queue
+ */
+void __downgrade_write(struct rw_semaphore *sem)
+{
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&sem->wait_lock, flags);
+
+	sem->activity = 1;
+	if (!list_empty(&sem->wait_list))
+		sem = __rwsem_do_wake(sem, 0);
+
+	raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
+}
+
diff --git a/kernel/locking/rwsem-xadd.c b/kernel/locking/rwsem-xadd.c
new file mode 100644
index 000000000000..19c5fa95e0b4
--- /dev/null
+++ b/kernel/locking/rwsem-xadd.c
@@ -0,0 +1,293 @@
+/* rwsem.c: R/W semaphores: contention handling functions
+ *
+ * Written by David Howells (dhowells@redhat.com).
+ * Derived from arch/i386/kernel/semaphore.c
+ *
+ * Writer lock-stealing by Alex Shi <alex.shi@intel.com>
+ * and Michel Lespinasse <walken@google.com>
+ */
+#include <linux/rwsem.h>
+#include <linux/sched.h>
+#include <linux/init.h>
+#include <linux/export.h>
+
+/*
+ * Initialize an rwsem:
+ */
+void __init_rwsem(struct rw_semaphore *sem, const char *name,
+		  struct lock_class_key *key)
+{
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+	/*
+	 * Make sure we are not reinitializing a held semaphore:
+	 */
+	debug_check_no_locks_freed((void *)sem, sizeof(*sem));
+	lockdep_init_map(&sem->dep_map, name, key, 0);
+#endif
+	sem->count = RWSEM_UNLOCKED_VALUE;
+	raw_spin_lock_init(&sem->wait_lock);
+	INIT_LIST_HEAD(&sem->wait_list);
+}
+
+EXPORT_SYMBOL(__init_rwsem);
+
+enum rwsem_waiter_type {
+	RWSEM_WAITING_FOR_WRITE,
+	RWSEM_WAITING_FOR_READ
+};
+
+struct rwsem_waiter {
+	struct list_head list;
+	struct task_struct *task;
+	enum rwsem_waiter_type type;
+};
+
+enum rwsem_wake_type {
+	RWSEM_WAKE_ANY,		/* Wake whatever's at head of wait list */
+	RWSEM_WAKE_READERS,	/* Wake readers only */
+	RWSEM_WAKE_READ_OWNED	/* Waker thread holds the read lock */
+};
+
+/*
+ * handle the lock release when processes blocked on it that can now run
+ * - if we come here from up_xxxx(), then:
+ *   - the 'active part' of count (&0x0000ffff) reached 0 (but may have changed)
+ *   - the 'waiting part' of count (&0xffff0000) is -ve (and will still be so)
+ * - there must be someone on the queue
+ * - the spinlock must be held by the caller
+ * - woken process blocks are discarded from the list after having task zeroed
+ * - writers are only woken if downgrading is false
+ */
+static struct rw_semaphore *
+__rwsem_do_wake(struct rw_semaphore *sem, enum rwsem_wake_type wake_type)
+{
+	struct rwsem_waiter *waiter;
+	struct task_struct *tsk;
+	struct list_head *next;
+	long oldcount, woken, loop, adjustment;
+
+	waiter = list_entry(sem->wait_list.next, struct rwsem_waiter, list);
+	if (waiter->type == RWSEM_WAITING_FOR_WRITE) {
+		if (wake_type == RWSEM_WAKE_ANY)
+			/* Wake writer at the front of the queue, but do not
+			 * grant it the lock yet as we want other writers
+			 * to be able to steal it.  Readers, on the other hand,
+			 * will block as they will notice the queued writer.
+			 */
+			wake_up_process(waiter->task);
+		goto out;
+	}
+
+	/* Writers might steal the lock before we grant it to the next reader.
+	 * We prefer to do the first reader grant before counting readers
+	 * so we can bail out early if a writer stole the lock.
+	 */
+	adjustment = 0;
+	if (wake_type != RWSEM_WAKE_READ_OWNED) {
+		adjustment = RWSEM_ACTIVE_READ_BIAS;
+ try_reader_grant:
+		oldcount = rwsem_atomic_update(adjustment, sem) - adjustment;
+		if (unlikely(oldcount < RWSEM_WAITING_BIAS)) {
+			/* A writer stole the lock. Undo our reader grant. */
+			if (rwsem_atomic_update(-adjustment, sem) &
+						RWSEM_ACTIVE_MASK)
+				goto out;
+			/* Last active locker left. Retry waking readers. */
+			goto try_reader_grant;
+		}
+	}
+
+	/* Grant an infinite number of read locks to the readers at the front
+	 * of the queue.  Note we increment the 'active part' of the count by
+	 * the number of readers before waking any processes up.
+	 */
+	woken = 0;
+	do {
+		woken++;
+
+		if (waiter->list.next == &sem->wait_list)
+			break;
+
+		waiter = list_entry(waiter->list.next,
+					struct rwsem_waiter, list);
+
+	} while (waiter->type != RWSEM_WAITING_FOR_WRITE);
+
+	adjustment = woken * RWSEM_ACTIVE_READ_BIAS - adjustment;
+	if (waiter->type != RWSEM_WAITING_FOR_WRITE)
+		/* hit end of list above */
+		adjustment -= RWSEM_WAITING_BIAS;
+
+	if (adjustment)
+		rwsem_atomic_add(adjustment, sem);
+
+	next = sem->wait_list.next;
+	loop = woken;
+	do {
+		waiter = list_entry(next, struct rwsem_waiter, list);
+		next = waiter->list.next;
+		tsk = waiter->task;
+		smp_mb();
+		waiter->task = NULL;
+		wake_up_process(tsk);
+		put_task_struct(tsk);
+	} while (--loop);
+
+	sem->wait_list.next = next;
+	next->prev = &sem->wait_list;
+
+ out:
+	return sem;
+}
+
+/*
+ * wait for the read lock to be granted
+ */
+struct rw_semaphore __sched *rwsem_down_read_failed(struct rw_semaphore *sem)
+{
+	long count, adjustment = -RWSEM_ACTIVE_READ_BIAS;
+	struct rwsem_waiter waiter;
+	struct task_struct *tsk = current;
+
+	/* set up my own style of waitqueue */
+	waiter.task = tsk;
+	waiter.type = RWSEM_WAITING_FOR_READ;
+	get_task_struct(tsk);
+
+	raw_spin_lock_irq(&sem->wait_lock);
+	if (list_empty(&sem->wait_list))
+		adjustment += RWSEM_WAITING_BIAS;
+	list_add_tail(&waiter.list, &sem->wait_list);
+
+	/* we're now waiting on the lock, but no longer actively locking */
+	count = rwsem_atomic_update(adjustment, sem);
+
+	/* If there are no active locks, wake the front queued process(es).
+	 *
+	 * If there are no writers and we are first in the queue,
+	 * wake our own waiter to join the existing active readers !
+	 */
+	if (count == RWSEM_WAITING_BIAS ||
+	    (count > RWSEM_WAITING_BIAS &&
+	     adjustment != -RWSEM_ACTIVE_READ_BIAS))
+		sem = __rwsem_do_wake(sem, RWSEM_WAKE_ANY);
+
+	raw_spin_unlock_irq(&sem->wait_lock);
+
+	/* wait to be given the lock */
+	while (true) {
+		set_task_state(tsk, TASK_UNINTERRUPTIBLE);
+		if (!waiter.task)
+			break;
+		schedule();
+	}
+
+	tsk->state = TASK_RUNNING;
+
+	return sem;
+}
+
+/*
+ * wait until we successfully acquire the write lock
+ */
+struct rw_semaphore __sched *rwsem_down_write_failed(struct rw_semaphore *sem)
+{
+	long count, adjustment = -RWSEM_ACTIVE_WRITE_BIAS;
+	struct rwsem_waiter waiter;
+	struct task_struct *tsk = current;
+
+	/* set up my own style of waitqueue */
+	waiter.task = tsk;
+	waiter.type = RWSEM_WAITING_FOR_WRITE;
+
+	raw_spin_lock_irq(&sem->wait_lock);
+	if (list_empty(&sem->wait_list))
+		adjustment += RWSEM_WAITING_BIAS;
+	list_add_tail(&waiter.list, &sem->wait_list);
+
+	/* we're now waiting on the lock, but no longer actively locking */
+	count = rwsem_atomic_update(adjustment, sem);
+
+	/* If there were already threads queued before us and there are no
+	 * active writers, the lock must be read owned; so we try to wake
+	 * any read locks that were queued ahead of us. */
+	if (count > RWSEM_WAITING_BIAS &&
+	    adjustment == -RWSEM_ACTIVE_WRITE_BIAS)
+		sem = __rwsem_do_wake(sem, RWSEM_WAKE_READERS);
+
+	/* wait until we successfully acquire the lock */
+	set_task_state(tsk, TASK_UNINTERRUPTIBLE);
+	while (true) {
+		if (!(count & RWSEM_ACTIVE_MASK)) {
+			/* Try acquiring the write lock. */
+			count = RWSEM_ACTIVE_WRITE_BIAS;
+			if (!list_is_singular(&sem->wait_list))
+				count += RWSEM_WAITING_BIAS;
+
+			if (sem->count == RWSEM_WAITING_BIAS &&
+			    cmpxchg(&sem->count, RWSEM_WAITING_BIAS, count) ==
+							RWSEM_WAITING_BIAS)
+				break;
+		}
+
+		raw_spin_unlock_irq(&sem->wait_lock);
+
+		/* Block until there are no active lockers. */
+		do {
+			schedule();
+			set_task_state(tsk, TASK_UNINTERRUPTIBLE);
+		} while ((count = sem->count) & RWSEM_ACTIVE_MASK);
+
+		raw_spin_lock_irq(&sem->wait_lock);
+	}
+
+	list_del(&waiter.list);
+	raw_spin_unlock_irq(&sem->wait_lock);
+	tsk->state = TASK_RUNNING;
+
+	return sem;
+}
+
+/*
+ * handle waking up a waiter on the semaphore
+ * - up_read/up_write has decremented the active part of count if we come here
+ */
+struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem)
+{
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&sem->wait_lock, flags);
+
+	/* do nothing if list empty */
+	if (!list_empty(&sem->wait_list))
+		sem = __rwsem_do_wake(sem, RWSEM_WAKE_ANY);
+
+	raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
+
+	return sem;
+}
+
+/*
+ * downgrade a write lock into a read lock
+ * - caller incremented waiting part of count and discovered it still negative
+ * - just wake up any readers at the front of the queue
+ */
+struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *sem)
+{
+	unsigned long flags;
+
+	raw_spin_lock_irqsave(&sem->wait_lock, flags);
+
+	/* do nothing if list empty */
+	if (!list_empty(&sem->wait_list))
+		sem = __rwsem_do_wake(sem, RWSEM_WAKE_READ_OWNED);
+
+	raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
+
+	return sem;
+}
+
+EXPORT_SYMBOL(rwsem_down_read_failed);
+EXPORT_SYMBOL(rwsem_down_write_failed);
+EXPORT_SYMBOL(rwsem_wake);
+EXPORT_SYMBOL(rwsem_downgrade_wake);
diff --git a/kernel/locking/rwsem.c b/kernel/locking/rwsem.c
new file mode 100644
index 000000000000..cfff1435bdfb
--- /dev/null
+++ b/kernel/locking/rwsem.c
@@ -0,0 +1,157 @@
+/* kernel/rwsem.c: R/W semaphores, public implementation
+ *
+ * Written by David Howells (dhowells@redhat.com).
+ * Derived from asm-i386/semaphore.h
+ */
+
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/export.h>
+#include <linux/rwsem.h>
+
+#include <linux/atomic.h>
+
+/*
+ * lock for reading
+ */
+void __sched down_read(struct rw_semaphore *sem)
+{
+	might_sleep();
+	rwsem_acquire_read(&sem->dep_map, 0, 0, _RET_IP_);
+
+	LOCK_CONTENDED(sem, __down_read_trylock, __down_read);
+}
+
+EXPORT_SYMBOL(down_read);
+
+/*
+ * trylock for reading -- returns 1 if successful, 0 if contention
+ */
+int down_read_trylock(struct rw_semaphore *sem)
+{
+	int ret = __down_read_trylock(sem);
+
+	if (ret == 1)
+		rwsem_acquire_read(&sem->dep_map, 0, 1, _RET_IP_);
+	return ret;
+}
+
+EXPORT_SYMBOL(down_read_trylock);
+
+/*
+ * lock for writing
+ */
+void __sched down_write(struct rw_semaphore *sem)
+{
+	might_sleep();
+	rwsem_acquire(&sem->dep_map, 0, 0, _RET_IP_);
+
+	LOCK_CONTENDED(sem, __down_write_trylock, __down_write);
+}
+
+EXPORT_SYMBOL(down_write);
+
+/*
+ * trylock for writing -- returns 1 if successful, 0 if contention
+ */
+int down_write_trylock(struct rw_semaphore *sem)
+{
+	int ret = __down_write_trylock(sem);
+
+	if (ret == 1)
+		rwsem_acquire(&sem->dep_map, 0, 1, _RET_IP_);
+	return ret;
+}
+
+EXPORT_SYMBOL(down_write_trylock);
+
+/*
+ * release a read lock
+ */
+void up_read(struct rw_semaphore *sem)
+{
+	rwsem_release(&sem->dep_map, 1, _RET_IP_);
+
+	__up_read(sem);
+}
+
+EXPORT_SYMBOL(up_read);
+
+/*
+ * release a write lock
+ */
+void up_write(struct rw_semaphore *sem)
+{
+	rwsem_release(&sem->dep_map, 1, _RET_IP_);
+
+	__up_write(sem);
+}
+
+EXPORT_SYMBOL(up_write);
+
+/*
+ * downgrade write lock to read lock
+ */
+void downgrade_write(struct rw_semaphore *sem)
+{
+	/*
+	 * lockdep: a downgraded write will live on as a write
+	 * dependency.
+	 */
+	__downgrade_write(sem);
+}
+
+EXPORT_SYMBOL(downgrade_write);
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+
+void down_read_nested(struct rw_semaphore *sem, int subclass)
+{
+	might_sleep();
+	rwsem_acquire_read(&sem->dep_map, subclass, 0, _RET_IP_);
+
+	LOCK_CONTENDED(sem, __down_read_trylock, __down_read);
+}
+
+EXPORT_SYMBOL(down_read_nested);
+
+void _down_write_nest_lock(struct rw_semaphore *sem, struct lockdep_map *nest)
+{
+	might_sleep();
+	rwsem_acquire_nest(&sem->dep_map, 0, 0, nest, _RET_IP_);
+
+	LOCK_CONTENDED(sem, __down_write_trylock, __down_write);
+}
+
+EXPORT_SYMBOL(_down_write_nest_lock);
+
+void down_read_non_owner(struct rw_semaphore *sem)
+{
+	might_sleep();
+
+	__down_read(sem);
+}
+
+EXPORT_SYMBOL(down_read_non_owner);
+
+void down_write_nested(struct rw_semaphore *sem, int subclass)
+{
+	might_sleep();
+	rwsem_acquire(&sem->dep_map, subclass, 0, _RET_IP_);
+
+	LOCK_CONTENDED(sem, __down_write_trylock, __down_write);
+}
+
+EXPORT_SYMBOL(down_write_nested);
+
+void up_read_non_owner(struct rw_semaphore *sem)
+{
+	__up_read(sem);
+}
+
+EXPORT_SYMBOL(up_read_non_owner);
+
+#endif
+
+
diff --git a/kernel/rwsem.c b/kernel/rwsem.c
deleted file mode 100644
index cfff1435bdfb..000000000000
--- a/kernel/rwsem.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/* kernel/rwsem.c: R/W semaphores, public implementation
- *
- * Written by David Howells (dhowells@redhat.com).
- * Derived from asm-i386/semaphore.h
- */
-
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-#include <linux/export.h>
-#include <linux/rwsem.h>
-
-#include <linux/atomic.h>
-
-/*
- * lock for reading
- */
-void __sched down_read(struct rw_semaphore *sem)
-{
-	might_sleep();
-	rwsem_acquire_read(&sem->dep_map, 0, 0, _RET_IP_);
-
-	LOCK_CONTENDED(sem, __down_read_trylock, __down_read);
-}
-
-EXPORT_SYMBOL(down_read);
-
-/*
- * trylock for reading -- returns 1 if successful, 0 if contention
- */
-int down_read_trylock(struct rw_semaphore *sem)
-{
-	int ret = __down_read_trylock(sem);
-
-	if (ret == 1)
-		rwsem_acquire_read(&sem->dep_map, 0, 1, _RET_IP_);
-	return ret;
-}
-
-EXPORT_SYMBOL(down_read_trylock);
-
-/*
- * lock for writing
- */
-void __sched down_write(struct rw_semaphore *sem)
-{
-	might_sleep();
-	rwsem_acquire(&sem->dep_map, 0, 0, _RET_IP_);
-
-	LOCK_CONTENDED(sem, __down_write_trylock, __down_write);
-}
-
-EXPORT_SYMBOL(down_write);
-
-/*
- * trylock for writing -- returns 1 if successful, 0 if contention
- */
-int down_write_trylock(struct rw_semaphore *sem)
-{
-	int ret = __down_write_trylock(sem);
-
-	if (ret == 1)
-		rwsem_acquire(&sem->dep_map, 0, 1, _RET_IP_);
-	return ret;
-}
-
-EXPORT_SYMBOL(down_write_trylock);
-
-/*
- * release a read lock
- */
-void up_read(struct rw_semaphore *sem)
-{
-	rwsem_release(&sem->dep_map, 1, _RET_IP_);
-
-	__up_read(sem);
-}
-
-EXPORT_SYMBOL(up_read);
-
-/*
- * release a write lock
- */
-void up_write(struct rw_semaphore *sem)
-{
-	rwsem_release(&sem->dep_map, 1, _RET_IP_);
-
-	__up_write(sem);
-}
-
-EXPORT_SYMBOL(up_write);
-
-/*
- * downgrade write lock to read lock
- */
-void downgrade_write(struct rw_semaphore *sem)
-{
-	/*
-	 * lockdep: a downgraded write will live on as a write
-	 * dependency.
-	 */
-	__downgrade_write(sem);
-}
-
-EXPORT_SYMBOL(downgrade_write);
-
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-
-void down_read_nested(struct rw_semaphore *sem, int subclass)
-{
-	might_sleep();
-	rwsem_acquire_read(&sem->dep_map, subclass, 0, _RET_IP_);
-
-	LOCK_CONTENDED(sem, __down_read_trylock, __down_read);
-}
-
-EXPORT_SYMBOL(down_read_nested);
-
-void _down_write_nest_lock(struct rw_semaphore *sem, struct lockdep_map *nest)
-{
-	might_sleep();
-	rwsem_acquire_nest(&sem->dep_map, 0, 0, nest, _RET_IP_);
-
-	LOCK_CONTENDED(sem, __down_write_trylock, __down_write);
-}
-
-EXPORT_SYMBOL(_down_write_nest_lock);
-
-void down_read_non_owner(struct rw_semaphore *sem)
-{
-	might_sleep();
-
-	__down_read(sem);
-}
-
-EXPORT_SYMBOL(down_read_non_owner);
-
-void down_write_nested(struct rw_semaphore *sem, int subclass)
-{
-	might_sleep();
-	rwsem_acquire(&sem->dep_map, subclass, 0, _RET_IP_);
-
-	LOCK_CONTENDED(sem, __down_write_trylock, __down_write);
-}
-
-EXPORT_SYMBOL(down_write_nested);
-
-void up_read_non_owner(struct rw_semaphore *sem)
-{
-	__up_read(sem);
-}
-
-EXPORT_SYMBOL(up_read_non_owner);
-
-#endif
-
-
diff --git a/lib/Makefile b/lib/Makefile
index bee27e1d3431..ca8cadc8fe4d 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -42,8 +42,6 @@ obj-$(CONFIG_GENERIC_PCI_IOMAP) += pci_iomap.o
 obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o
 obj-$(CONFIG_CHECK_SIGNATURE) += check_signature.o
 obj-$(CONFIG_DEBUG_LOCKING_API_SELFTESTS) += locking-selftest.o
-lib-$(CONFIG_RWSEM_GENERIC_SPINLOCK) += rwsem-spinlock.o
-lib-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += rwsem.o
 lib-$(CONFIG_PERCPU_RWSEM) += percpu-rwsem.o
 
 CFLAGS_hweight.o = $(subst $(quote),,$(CONFIG_ARCH_HWEIGHT_CFLAGS))
diff --git a/lib/rwsem-spinlock.c b/lib/rwsem-spinlock.c
deleted file mode 100644
index 9be8a9144978..000000000000
--- a/lib/rwsem-spinlock.c
+++ /dev/null
@@ -1,296 +0,0 @@
-/* rwsem-spinlock.c: R/W semaphores: contention handling functions for
- * generic spinlock implementation
- *
- * Copyright (c) 2001   David Howells (dhowells@redhat.com).
- * - Derived partially from idea by Andrea Arcangeli <andrea@suse.de>
- * - Derived also from comments by Linus
- */
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/export.h>
-
-enum rwsem_waiter_type {
-	RWSEM_WAITING_FOR_WRITE,
-	RWSEM_WAITING_FOR_READ
-};
-
-struct rwsem_waiter {
-	struct list_head list;
-	struct task_struct *task;
-	enum rwsem_waiter_type type;
-};
-
-int rwsem_is_locked(struct rw_semaphore *sem)
-{
-	int ret = 1;
-	unsigned long flags;
-
-	if (raw_spin_trylock_irqsave(&sem->wait_lock, flags)) {
-		ret = (sem->activity != 0);
-		raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
-	}
-	return ret;
-}
-EXPORT_SYMBOL(rwsem_is_locked);
-
-/*
- * initialise the semaphore
- */
-void __init_rwsem(struct rw_semaphore *sem, const char *name,
-		  struct lock_class_key *key)
-{
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-	/*
-	 * Make sure we are not reinitializing a held semaphore:
-	 */
-	debug_check_no_locks_freed((void *)sem, sizeof(*sem));
-	lockdep_init_map(&sem->dep_map, name, key, 0);
-#endif
-	sem->activity = 0;
-	raw_spin_lock_init(&sem->wait_lock);
-	INIT_LIST_HEAD(&sem->wait_list);
-}
-EXPORT_SYMBOL(__init_rwsem);
-
-/*
- * handle the lock release when processes blocked on it that can now run
- * - if we come here, then:
- *   - the 'active count' _reached_ zero
- *   - the 'waiting count' is non-zero
- * - the spinlock must be held by the caller
- * - woken process blocks are discarded from the list after having task zeroed
- * - writers are only woken if wakewrite is non-zero
- */
-static inline struct rw_semaphore *
-__rwsem_do_wake(struct rw_semaphore *sem, int wakewrite)
-{
-	struct rwsem_waiter *waiter;
-	struct task_struct *tsk;
-	int woken;
-
-	waiter = list_entry(sem->wait_list.next, struct rwsem_waiter, list);
-
-	if (waiter->type == RWSEM_WAITING_FOR_WRITE) {
-		if (wakewrite)
-			/* Wake up a writer. Note that we do not grant it the
-			 * lock - it will have to acquire it when it runs. */
-			wake_up_process(waiter->task);
-		goto out;
-	}
-
-	/* grant an infinite number of read locks to the front of the queue */
-	woken = 0;
-	do {
-		struct list_head *next = waiter->list.next;
-
-		list_del(&waiter->list);
-		tsk = waiter->task;
-		smp_mb();
-		waiter->task = NULL;
-		wake_up_process(tsk);
-		put_task_struct(tsk);
-		woken++;
-		if (next == &sem->wait_list)
-			break;
-		waiter = list_entry(next, struct rwsem_waiter, list);
-	} while (waiter->type != RWSEM_WAITING_FOR_WRITE);
-
-	sem->activity += woken;
-
- out:
-	return sem;
-}
-
-/*
- * wake a single writer
- */
-static inline struct rw_semaphore *
-__rwsem_wake_one_writer(struct rw_semaphore *sem)
-{
-	struct rwsem_waiter *waiter;
-
-	waiter = list_entry(sem->wait_list.next, struct rwsem_waiter, list);
-	wake_up_process(waiter->task);
-
-	return sem;
-}
-
-/*
- * get a read lock on the semaphore
- */
-void __sched __down_read(struct rw_semaphore *sem)
-{
-	struct rwsem_waiter waiter;
-	struct task_struct *tsk;
-	unsigned long flags;
-
-	raw_spin_lock_irqsave(&sem->wait_lock, flags);
-
-	if (sem->activity >= 0 && list_empty(&sem->wait_list)) {
-		/* granted */
-		sem->activity++;
-		raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
-		goto out;
-	}
-
-	tsk = current;
-	set_task_state(tsk, TASK_UNINTERRUPTIBLE);
-
-	/* set up my own style of waitqueue */
-	waiter.task = tsk;
-	waiter.type = RWSEM_WAITING_FOR_READ;
-	get_task_struct(tsk);
-
-	list_add_tail(&waiter.list, &sem->wait_list);
-
-	/* we don't need to touch the semaphore struct anymore */
-	raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
-
-	/* wait to be given the lock */
-	for (;;) {
-		if (!waiter.task)
-			break;
-		schedule();
-		set_task_state(tsk, TASK_UNINTERRUPTIBLE);
-	}
-
-	tsk->state = TASK_RUNNING;
- out:
-	;
-}
-
-/*
- * trylock for reading -- returns 1 if successful, 0 if contention
- */
-int __down_read_trylock(struct rw_semaphore *sem)
-{
-	unsigned long flags;
-	int ret = 0;
-
-
-	raw_spin_lock_irqsave(&sem->wait_lock, flags);
-
-	if (sem->activity >= 0 && list_empty(&sem->wait_list)) {
-		/* granted */
-		sem->activity++;
-		ret = 1;
-	}
-
-	raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
-
-	return ret;
-}
-
-/*
- * get a write lock on the semaphore
- */
-void __sched __down_write_nested(struct rw_semaphore *sem, int subclass)
-{
-	struct rwsem_waiter waiter;
-	struct task_struct *tsk;
-	unsigned long flags;
-
-	raw_spin_lock_irqsave(&sem->wait_lock, flags);
-
-	/* set up my own style of waitqueue */
-	tsk = current;
-	waiter.task = tsk;
-	waiter.type = RWSEM_WAITING_FOR_WRITE;
-	list_add_tail(&waiter.list, &sem->wait_list);
-
-	/* wait for someone to release the lock */
-	for (;;) {
-		/*
-		 * That is the key to support write lock stealing: allows the
-		 * task already on CPU to get the lock soon rather than put
-		 * itself into sleep and waiting for system woke it or someone
-		 * else in the head of the wait list up.
-		 */
-		if (sem->activity == 0)
-			break;
-		set_task_state(tsk, TASK_UNINTERRUPTIBLE);
-		raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
-		schedule();
-		raw_spin_lock_irqsave(&sem->wait_lock, flags);
-	}
-	/* got the lock */
-	sem->activity = -1;
-	list_del(&waiter.list);
-
-	raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
-}
-
-void __sched __down_write(struct rw_semaphore *sem)
-{
-	__down_write_nested(sem, 0);
-}
-
-/*
- * trylock for writing -- returns 1 if successful, 0 if contention
- */
-int __down_write_trylock(struct rw_semaphore *sem)
-{
-	unsigned long flags;
-	int ret = 0;
-
-	raw_spin_lock_irqsave(&sem->wait_lock, flags);
-
-	if (sem->activity == 0) {
-		/* got the lock */
-		sem->activity = -1;
-		ret = 1;
-	}
-
-	raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
-
-	return ret;
-}
-
-/*
- * release a read lock on the semaphore
- */
-void __up_read(struct rw_semaphore *sem)
-{
-	unsigned long flags;
-
-	raw_spin_lock_irqsave(&sem->wait_lock, flags);
-
-	if (--sem->activity == 0 && !list_empty(&sem->wait_list))
-		sem = __rwsem_wake_one_writer(sem);
-
-	raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
-}
-
-/*
- * release a write lock on the semaphore
- */
-void __up_write(struct rw_semaphore *sem)
-{
-	unsigned long flags;
-
-	raw_spin_lock_irqsave(&sem->wait_lock, flags);
-
-	sem->activity = 0;
-	if (!list_empty(&sem->wait_list))
-		sem = __rwsem_do_wake(sem, 1);
-
-	raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
-}
-
-/*
- * downgrade a write lock into a read lock
- * - just wake up any readers at the front of the queue
- */
-void __downgrade_write(struct rw_semaphore *sem)
-{
-	unsigned long flags;
-
-	raw_spin_lock_irqsave(&sem->wait_lock, flags);
-
-	sem->activity = 1;
-	if (!list_empty(&sem->wait_list))
-		sem = __rwsem_do_wake(sem, 0);
-
-	raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
-}
-
diff --git a/lib/rwsem.c b/lib/rwsem.c
deleted file mode 100644
index 19c5fa95e0b4..000000000000
--- a/lib/rwsem.c
+++ /dev/null
@@ -1,293 +0,0 @@
-/* rwsem.c: R/W semaphores: contention handling functions
- *
- * Written by David Howells (dhowells@redhat.com).
- * Derived from arch/i386/kernel/semaphore.c
- *
- * Writer lock-stealing by Alex Shi <alex.shi@intel.com>
- * and Michel Lespinasse <walken@google.com>
- */
-#include <linux/rwsem.h>
-#include <linux/sched.h>
-#include <linux/init.h>
-#include <linux/export.h>
-
-/*
- * Initialize an rwsem:
- */
-void __init_rwsem(struct rw_semaphore *sem, const char *name,
-		  struct lock_class_key *key)
-{
-#ifdef CONFIG_DEBUG_LOCK_ALLOC
-	/*
-	 * Make sure we are not reinitializing a held semaphore:
-	 */
-	debug_check_no_locks_freed((void *)sem, sizeof(*sem));
-	lockdep_init_map(&sem->dep_map, name, key, 0);
-#endif
-	sem->count = RWSEM_UNLOCKED_VALUE;
-	raw_spin_lock_init(&sem->wait_lock);
-	INIT_LIST_HEAD(&sem->wait_list);
-}
-
-EXPORT_SYMBOL(__init_rwsem);
-
-enum rwsem_waiter_type {
-	RWSEM_WAITING_FOR_WRITE,
-	RWSEM_WAITING_FOR_READ
-};
-
-struct rwsem_waiter {
-	struct list_head list;
-	struct task_struct *task;
-	enum rwsem_waiter_type type;
-};
-
-enum rwsem_wake_type {
-	RWSEM_WAKE_ANY,		/* Wake whatever's at head of wait list */
-	RWSEM_WAKE_READERS,	/* Wake readers only */
-	RWSEM_WAKE_READ_OWNED	/* Waker thread holds the read lock */
-};
-
-/*
- * handle the lock release when processes blocked on it that can now run
- * - if we come here from up_xxxx(), then:
- *   - the 'active part' of count (&0x0000ffff) reached 0 (but may have changed)
- *   - the 'waiting part' of count (&0xffff0000) is -ve (and will still be so)
- * - there must be someone on the queue
- * - the spinlock must be held by the caller
- * - woken process blocks are discarded from the list after having task zeroed
- * - writers are only woken if downgrading is false
- */
-static struct rw_semaphore *
-__rwsem_do_wake(struct rw_semaphore *sem, enum rwsem_wake_type wake_type)
-{
-	struct rwsem_waiter *waiter;
-	struct task_struct *tsk;
-	struct list_head *next;
-	long oldcount, woken, loop, adjustment;
-
-	waiter = list_entry(sem->wait_list.next, struct rwsem_waiter, list);
-	if (waiter->type == RWSEM_WAITING_FOR_WRITE) {
-		if (wake_type == RWSEM_WAKE_ANY)
-			/* Wake writer at the front of the queue, but do not
-			 * grant it the lock yet as we want other writers
-			 * to be able to steal it.  Readers, on the other hand,
-			 * will block as they will notice the queued writer.
-			 */
-			wake_up_process(waiter->task);
-		goto out;
-	}
-
-	/* Writers might steal the lock before we grant it to the next reader.
-	 * We prefer to do the first reader grant before counting readers
-	 * so we can bail out early if a writer stole the lock.
-	 */
-	adjustment = 0;
-	if (wake_type != RWSEM_WAKE_READ_OWNED) {
-		adjustment = RWSEM_ACTIVE_READ_BIAS;
- try_reader_grant:
-		oldcount = rwsem_atomic_update(adjustment, sem) - adjustment;
-		if (unlikely(oldcount < RWSEM_WAITING_BIAS)) {
-			/* A writer stole the lock. Undo our reader grant. */
-			if (rwsem_atomic_update(-adjustment, sem) &
-						RWSEM_ACTIVE_MASK)
-				goto out;
-			/* Last active locker left. Retry waking readers. */
-			goto try_reader_grant;
-		}
-	}
-
-	/* Grant an infinite number of read locks to the readers at the front
-	 * of the queue.  Note we increment the 'active part' of the count by
-	 * the number of readers before waking any processes up.
-	 */
-	woken = 0;
-	do {
-		woken++;
-
-		if (waiter->list.next == &sem->wait_list)
-			break;
-
-		waiter = list_entry(waiter->list.next,
-					struct rwsem_waiter, list);
-
-	} while (waiter->type != RWSEM_WAITING_FOR_WRITE);
-
-	adjustment = woken * RWSEM_ACTIVE_READ_BIAS - adjustment;
-	if (waiter->type != RWSEM_WAITING_FOR_WRITE)
-		/* hit end of list above */
-		adjustment -= RWSEM_WAITING_BIAS;
-
-	if (adjustment)
-		rwsem_atomic_add(adjustment, sem);
-
-	next = sem->wait_list.next;
-	loop = woken;
-	do {
-		waiter = list_entry(next, struct rwsem_waiter, list);
-		next = waiter->list.next;
-		tsk = waiter->task;
-		smp_mb();
-		waiter->task = NULL;
-		wake_up_process(tsk);
-		put_task_struct(tsk);
-	} while (--loop);
-
-	sem->wait_list.next = next;
-	next->prev = &sem->wait_list;
-
- out:
-	return sem;
-}
-
-/*
- * wait for the read lock to be granted
- */
-struct rw_semaphore __sched *rwsem_down_read_failed(struct rw_semaphore *sem)
-{
-	long count, adjustment = -RWSEM_ACTIVE_READ_BIAS;
-	struct rwsem_waiter waiter;
-	struct task_struct *tsk = current;
-
-	/* set up my own style of waitqueue */
-	waiter.task = tsk;
-	waiter.type = RWSEM_WAITING_FOR_READ;
-	get_task_struct(tsk);
-
-	raw_spin_lock_irq(&sem->wait_lock);
-	if (list_empty(&sem->wait_list))
-		adjustment += RWSEM_WAITING_BIAS;
-	list_add_tail(&waiter.list, &sem->wait_list);
-
-	/* we're now waiting on the lock, but no longer actively locking */
-	count = rwsem_atomic_update(adjustment, sem);
-
-	/* If there are no active locks, wake the front queued process(es).
-	 *
-	 * If there are no writers and we are first in the queue,
-	 * wake our own waiter to join the existing active readers !
-	 */
-	if (count == RWSEM_WAITING_BIAS ||
-	    (count > RWSEM_WAITING_BIAS &&
-	     adjustment != -RWSEM_ACTIVE_READ_BIAS))
-		sem = __rwsem_do_wake(sem, RWSEM_WAKE_ANY);
-
-	raw_spin_unlock_irq(&sem->wait_lock);
-
-	/* wait to be given the lock */
-	while (true) {
-		set_task_state(tsk, TASK_UNINTERRUPTIBLE);
-		if (!waiter.task)
-			break;
-		schedule();
-	}
-
-	tsk->state = TASK_RUNNING;
-
-	return sem;
-}
-
-/*
- * wait until we successfully acquire the write lock
- */
-struct rw_semaphore __sched *rwsem_down_write_failed(struct rw_semaphore *sem)
-{
-	long count, adjustment = -RWSEM_ACTIVE_WRITE_BIAS;
-	struct rwsem_waiter waiter;
-	struct task_struct *tsk = current;
-
-	/* set up my own style of waitqueue */
-	waiter.task = tsk;
-	waiter.type = RWSEM_WAITING_FOR_WRITE;
-
-	raw_spin_lock_irq(&sem->wait_lock);
-	if (list_empty(&sem->wait_list))
-		adjustment += RWSEM_WAITING_BIAS;
-	list_add_tail(&waiter.list, &sem->wait_list);
-
-	/* we're now waiting on the lock, but no longer actively locking */
-	count = rwsem_atomic_update(adjustment, sem);
-
-	/* If there were already threads queued before us and there are no
-	 * active writers, the lock must be read owned; so we try to wake
-	 * any read locks that were queued ahead of us. */
-	if (count > RWSEM_WAITING_BIAS &&
-	    adjustment == -RWSEM_ACTIVE_WRITE_BIAS)
-		sem = __rwsem_do_wake(sem, RWSEM_WAKE_READERS);
-
-	/* wait until we successfully acquire the lock */
-	set_task_state(tsk, TASK_UNINTERRUPTIBLE);
-	while (true) {
-		if (!(count & RWSEM_ACTIVE_MASK)) {
-			/* Try acquiring the write lock. */
-			count = RWSEM_ACTIVE_WRITE_BIAS;
-			if (!list_is_singular(&sem->wait_list))
-				count += RWSEM_WAITING_BIAS;
-
-			if (sem->count == RWSEM_WAITING_BIAS &&
-			    cmpxchg(&sem->count, RWSEM_WAITING_BIAS, count) ==
-							RWSEM_WAITING_BIAS)
-				break;
-		}
-
-		raw_spin_unlock_irq(&sem->wait_lock);
-
-		/* Block until there are no active lockers. */
-		do {
-			schedule();
-			set_task_state(tsk, TASK_UNINTERRUPTIBLE);
-		} while ((count = sem->count) & RWSEM_ACTIVE_MASK);
-
-		raw_spin_lock_irq(&sem->wait_lock);
-	}
-
-	list_del(&waiter.list);
-	raw_spin_unlock_irq(&sem->wait_lock);
-	tsk->state = TASK_RUNNING;
-
-	return sem;
-}
-
-/*
- * handle waking up a waiter on the semaphore
- * - up_read/up_write has decremented the active part of count if we come here
- */
-struct rw_semaphore *rwsem_wake(struct rw_semaphore *sem)
-{
-	unsigned long flags;
-
-	raw_spin_lock_irqsave(&sem->wait_lock, flags);
-
-	/* do nothing if list empty */
-	if (!list_empty(&sem->wait_list))
-		sem = __rwsem_do_wake(sem, RWSEM_WAKE_ANY);
-
-	raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
-
-	return sem;
-}
-
-/*
- * downgrade a write lock into a read lock
- * - caller incremented waiting part of count and discovered it still negative
- * - just wake up any readers at the front of the queue
- */
-struct rw_semaphore *rwsem_downgrade_wake(struct rw_semaphore *sem)
-{
-	unsigned long flags;
-
-	raw_spin_lock_irqsave(&sem->wait_lock, flags);
-
-	/* do nothing if list empty */
-	if (!list_empty(&sem->wait_list))
-		sem = __rwsem_do_wake(sem, RWSEM_WAKE_READ_OWNED);
-
-	raw_spin_unlock_irqrestore(&sem->wait_lock, flags);
-
-	return sem;
-}
-
-EXPORT_SYMBOL(rwsem_down_read_failed);
-EXPORT_SYMBOL(rwsem_down_write_failed);
-EXPORT_SYMBOL(rwsem_wake);
-EXPORT_SYMBOL(rwsem_downgrade_wake);
-- 
cgit 


From cd4d241d57c99c6b00ef1799ad797d90f75a1da9 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 4 Nov 2013 11:51:33 +0100
Subject: locking: Move the lglocks code to kernel/locking/

Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-amd6pg1mif6tikbyktfvby3y@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/Makefile         |  2 +-
 kernel/lglock.c         | 89 -------------------------------------------------
 kernel/locking/Makefile |  2 +-
 kernel/locking/lglock.c | 89 +++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 91 insertions(+), 91 deletions(-)
 delete mode 100644 kernel/lglock.c
 create mode 100644 kernel/locking/lglock.c

diff --git a/kernel/Makefile b/kernel/Makefile
index 1aef002aa56b..09a9c94f42bd 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -10,7 +10,7 @@ obj-y     = fork.o exec_domain.o panic.o \
 	    kthread.o sys_ni.o posix-cpu-timers.o \
 	    hrtimer.o nsproxy.o \
 	    notifier.o ksysfs.o cred.o reboot.o \
-	    async.o range.o groups.o lglock.o smpboot.o
+	    async.o range.o groups.o smpboot.o
 
 ifdef CONFIG_FUNCTION_TRACER
 # Do not trace debug files and internal ftrace files
diff --git a/kernel/lglock.c b/kernel/lglock.c
deleted file mode 100644
index 86ae2aebf004..000000000000
--- a/kernel/lglock.c
+++ /dev/null
@@ -1,89 +0,0 @@
-/* See include/linux/lglock.h for description */
-#include <linux/module.h>
-#include <linux/lglock.h>
-#include <linux/cpu.h>
-#include <linux/string.h>
-
-/*
- * Note there is no uninit, so lglocks cannot be defined in
- * modules (but it's fine to use them from there)
- * Could be added though, just undo lg_lock_init
- */
-
-void lg_lock_init(struct lglock *lg, char *name)
-{
-	LOCKDEP_INIT_MAP(&lg->lock_dep_map, name, &lg->lock_key, 0);
-}
-EXPORT_SYMBOL(lg_lock_init);
-
-void lg_local_lock(struct lglock *lg)
-{
-	arch_spinlock_t *lock;
-
-	preempt_disable();
-	lock_acquire_shared(&lg->lock_dep_map, 0, 0, NULL, _RET_IP_);
-	lock = this_cpu_ptr(lg->lock);
-	arch_spin_lock(lock);
-}
-EXPORT_SYMBOL(lg_local_lock);
-
-void lg_local_unlock(struct lglock *lg)
-{
-	arch_spinlock_t *lock;
-
-	lock_release(&lg->lock_dep_map, 1, _RET_IP_);
-	lock = this_cpu_ptr(lg->lock);
-	arch_spin_unlock(lock);
-	preempt_enable();
-}
-EXPORT_SYMBOL(lg_local_unlock);
-
-void lg_local_lock_cpu(struct lglock *lg, int cpu)
-{
-	arch_spinlock_t *lock;
-
-	preempt_disable();
-	lock_acquire_shared(&lg->lock_dep_map, 0, 0, NULL, _RET_IP_);
-	lock = per_cpu_ptr(lg->lock, cpu);
-	arch_spin_lock(lock);
-}
-EXPORT_SYMBOL(lg_local_lock_cpu);
-
-void lg_local_unlock_cpu(struct lglock *lg, int cpu)
-{
-	arch_spinlock_t *lock;
-
-	lock_release(&lg->lock_dep_map, 1, _RET_IP_);
-	lock = per_cpu_ptr(lg->lock, cpu);
-	arch_spin_unlock(lock);
-	preempt_enable();
-}
-EXPORT_SYMBOL(lg_local_unlock_cpu);
-
-void lg_global_lock(struct lglock *lg)
-{
-	int i;
-
-	preempt_disable();
-	lock_acquire_exclusive(&lg->lock_dep_map, 0, 0, NULL, _RET_IP_);
-	for_each_possible_cpu(i) {
-		arch_spinlock_t *lock;
-		lock = per_cpu_ptr(lg->lock, i);
-		arch_spin_lock(lock);
-	}
-}
-EXPORT_SYMBOL(lg_global_lock);
-
-void lg_global_unlock(struct lglock *lg)
-{
-	int i;
-
-	lock_release(&lg->lock_dep_map, 1, _RET_IP_);
-	for_each_possible_cpu(i) {
-		arch_spinlock_t *lock;
-		lock = per_cpu_ptr(lg->lock, i);
-		arch_spin_unlock(lock);
-	}
-	preempt_enable();
-}
-EXPORT_SYMBOL(lg_global_unlock);
diff --git a/kernel/locking/Makefile b/kernel/locking/Makefile
index b0e0d73516e3..bdd313a3411d 100644
--- a/kernel/locking/Makefile
+++ b/kernel/locking/Makefile
@@ -1,5 +1,5 @@
 
-obj-y += mutex.o semaphore.o rwsem.o
+obj-y += mutex.o semaphore.o rwsem.o lglock.o
 
 ifdef CONFIG_FUNCTION_TRACER
 CFLAGS_REMOVE_lockdep.o = -pg
diff --git a/kernel/locking/lglock.c b/kernel/locking/lglock.c
new file mode 100644
index 000000000000..86ae2aebf004
--- /dev/null
+++ b/kernel/locking/lglock.c
@@ -0,0 +1,89 @@
+/* See include/linux/lglock.h for description */
+#include <linux/module.h>
+#include <linux/lglock.h>
+#include <linux/cpu.h>
+#include <linux/string.h>
+
+/*
+ * Note there is no uninit, so lglocks cannot be defined in
+ * modules (but it's fine to use them from there)
+ * Could be added though, just undo lg_lock_init
+ */
+
+void lg_lock_init(struct lglock *lg, char *name)
+{
+	LOCKDEP_INIT_MAP(&lg->lock_dep_map, name, &lg->lock_key, 0);
+}
+EXPORT_SYMBOL(lg_lock_init);
+
+void lg_local_lock(struct lglock *lg)
+{
+	arch_spinlock_t *lock;
+
+	preempt_disable();
+	lock_acquire_shared(&lg->lock_dep_map, 0, 0, NULL, _RET_IP_);
+	lock = this_cpu_ptr(lg->lock);
+	arch_spin_lock(lock);
+}
+EXPORT_SYMBOL(lg_local_lock);
+
+void lg_local_unlock(struct lglock *lg)
+{
+	arch_spinlock_t *lock;
+
+	lock_release(&lg->lock_dep_map, 1, _RET_IP_);
+	lock = this_cpu_ptr(lg->lock);
+	arch_spin_unlock(lock);
+	preempt_enable();
+}
+EXPORT_SYMBOL(lg_local_unlock);
+
+void lg_local_lock_cpu(struct lglock *lg, int cpu)
+{
+	arch_spinlock_t *lock;
+
+	preempt_disable();
+	lock_acquire_shared(&lg->lock_dep_map, 0, 0, NULL, _RET_IP_);
+	lock = per_cpu_ptr(lg->lock, cpu);
+	arch_spin_lock(lock);
+}
+EXPORT_SYMBOL(lg_local_lock_cpu);
+
+void lg_local_unlock_cpu(struct lglock *lg, int cpu)
+{
+	arch_spinlock_t *lock;
+
+	lock_release(&lg->lock_dep_map, 1, _RET_IP_);
+	lock = per_cpu_ptr(lg->lock, cpu);
+	arch_spin_unlock(lock);
+	preempt_enable();
+}
+EXPORT_SYMBOL(lg_local_unlock_cpu);
+
+void lg_global_lock(struct lglock *lg)
+{
+	int i;
+
+	preempt_disable();
+	lock_acquire_exclusive(&lg->lock_dep_map, 0, 0, NULL, _RET_IP_);
+	for_each_possible_cpu(i) {
+		arch_spinlock_t *lock;
+		lock = per_cpu_ptr(lg->lock, i);
+		arch_spin_lock(lock);
+	}
+}
+EXPORT_SYMBOL(lg_global_lock);
+
+void lg_global_unlock(struct lglock *lg)
+{
+	int i;
+
+	lock_release(&lg->lock_dep_map, 1, _RET_IP_);
+	for_each_possible_cpu(i) {
+		arch_spinlock_t *lock;
+		lock = per_cpu_ptr(lg->lock, i);
+		arch_spin_unlock(lock);
+	}
+	preempt_enable();
+}
+EXPORT_SYMBOL(lg_global_unlock);
-- 
cgit 


From 32cf7c3c94623514eb882addae307212c1507239 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 4 Nov 2013 18:05:09 +0100
Subject: locking: Move the percpu-rwsem code to kernel/locking/

Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-52bjmtty46we26hbfd9sc9iy@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/locking/Makefile       |   3 +-
 kernel/locking/percpu-rwsem.c | 165 ++++++++++++++++++++++++++++++++++++++++++
 lib/Makefile                  |   1 -
 lib/percpu-rwsem.c            | 165 ------------------------------------------
 4 files changed, 167 insertions(+), 167 deletions(-)
 create mode 100644 kernel/locking/percpu-rwsem.c
 delete mode 100644 lib/percpu-rwsem.c

diff --git a/kernel/locking/Makefile b/kernel/locking/Makefile
index bdd313a3411d..baab8e5e7f66 100644
--- a/kernel/locking/Makefile
+++ b/kernel/locking/Makefile
@@ -21,4 +21,5 @@ obj-$(CONFIG_RT_MUTEX_TESTER) += rtmutex-tester.o
 obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock.o
 obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock_debug.o
 obj-$(CONFIG_RWSEM_GENERIC_SPINLOCK) += rwsem-spinlock.o
-obj-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += rwsem-xadd.o
\ No newline at end of file
+obj-$(CONFIG_RWSEM_XCHGADD_ALGORITHM) += rwsem-xadd.o
+obj-$(CONFIG_PERCPU_RWSEM) += percpu-rwsem.o
diff --git a/kernel/locking/percpu-rwsem.c b/kernel/locking/percpu-rwsem.c
new file mode 100644
index 000000000000..652a8ee8efe9
--- /dev/null
+++ b/kernel/locking/percpu-rwsem.c
@@ -0,0 +1,165 @@
+#include <linux/atomic.h>
+#include <linux/rwsem.h>
+#include <linux/percpu.h>
+#include <linux/wait.h>
+#include <linux/lockdep.h>
+#include <linux/percpu-rwsem.h>
+#include <linux/rcupdate.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+
+int __percpu_init_rwsem(struct percpu_rw_semaphore *brw,
+			const char *name, struct lock_class_key *rwsem_key)
+{
+	brw->fast_read_ctr = alloc_percpu(int);
+	if (unlikely(!brw->fast_read_ctr))
+		return -ENOMEM;
+
+	/* ->rw_sem represents the whole percpu_rw_semaphore for lockdep */
+	__init_rwsem(&brw->rw_sem, name, rwsem_key);
+	atomic_set(&brw->write_ctr, 0);
+	atomic_set(&brw->slow_read_ctr, 0);
+	init_waitqueue_head(&brw->write_waitq);
+	return 0;
+}
+
+void percpu_free_rwsem(struct percpu_rw_semaphore *brw)
+{
+	free_percpu(brw->fast_read_ctr);
+	brw->fast_read_ctr = NULL; /* catch use after free bugs */
+}
+
+/*
+ * This is the fast-path for down_read/up_read, it only needs to ensure
+ * there is no pending writer (atomic_read(write_ctr) == 0) and inc/dec the
+ * fast per-cpu counter. The writer uses synchronize_sched_expedited() to
+ * serialize with the preempt-disabled section below.
+ *
+ * The nontrivial part is that we should guarantee acquire/release semantics
+ * in case when
+ *
+ *	R_W: down_write() comes after up_read(), the writer should see all
+ *	     changes done by the reader
+ * or
+ *	W_R: down_read() comes after up_write(), the reader should see all
+ *	     changes done by the writer
+ *
+ * If this helper fails the callers rely on the normal rw_semaphore and
+ * atomic_dec_and_test(), so in this case we have the necessary barriers.
+ *
+ * But if it succeeds we do not have any barriers, atomic_read(write_ctr) or
+ * __this_cpu_add() below can be reordered with any LOAD/STORE done by the
+ * reader inside the critical section. See the comments in down_write and
+ * up_write below.
+ */
+static bool update_fast_ctr(struct percpu_rw_semaphore *brw, unsigned int val)
+{
+	bool success = false;
+
+	preempt_disable();
+	if (likely(!atomic_read(&brw->write_ctr))) {
+		__this_cpu_add(*brw->fast_read_ctr, val);
+		success = true;
+	}
+	preempt_enable();
+
+	return success;
+}
+
+/*
+ * Like the normal down_read() this is not recursive, the writer can
+ * come after the first percpu_down_read() and create the deadlock.
+ *
+ * Note: returns with lock_is_held(brw->rw_sem) == T for lockdep,
+ * percpu_up_read() does rwsem_release(). This pairs with the usage
+ * of ->rw_sem in percpu_down/up_write().
+ */
+void percpu_down_read(struct percpu_rw_semaphore *brw)
+{
+	might_sleep();
+	if (likely(update_fast_ctr(brw, +1))) {
+		rwsem_acquire_read(&brw->rw_sem.dep_map, 0, 0, _RET_IP_);
+		return;
+	}
+
+	down_read(&brw->rw_sem);
+	atomic_inc(&brw->slow_read_ctr);
+	/* avoid up_read()->rwsem_release() */
+	__up_read(&brw->rw_sem);
+}
+
+void percpu_up_read(struct percpu_rw_semaphore *brw)
+{
+	rwsem_release(&brw->rw_sem.dep_map, 1, _RET_IP_);
+
+	if (likely(update_fast_ctr(brw, -1)))
+		return;
+
+	/* false-positive is possible but harmless */
+	if (atomic_dec_and_test(&brw->slow_read_ctr))
+		wake_up_all(&brw->write_waitq);
+}
+
+static int clear_fast_ctr(struct percpu_rw_semaphore *brw)
+{
+	unsigned int sum = 0;
+	int cpu;
+
+	for_each_possible_cpu(cpu) {
+		sum += per_cpu(*brw->fast_read_ctr, cpu);
+		per_cpu(*brw->fast_read_ctr, cpu) = 0;
+	}
+
+	return sum;
+}
+
+/*
+ * A writer increments ->write_ctr to force the readers to switch to the
+ * slow mode, note the atomic_read() check in update_fast_ctr().
+ *
+ * After that the readers can only inc/dec the slow ->slow_read_ctr counter,
+ * ->fast_read_ctr is stable. Once the writer moves its sum into the slow
+ * counter it represents the number of active readers.
+ *
+ * Finally the writer takes ->rw_sem for writing and blocks the new readers,
+ * then waits until the slow counter becomes zero.
+ */
+void percpu_down_write(struct percpu_rw_semaphore *brw)
+{
+	/* tell update_fast_ctr() there is a pending writer */
+	atomic_inc(&brw->write_ctr);
+	/*
+	 * 1. Ensures that write_ctr != 0 is visible to any down_read/up_read
+	 *    so that update_fast_ctr() can't succeed.
+	 *
+	 * 2. Ensures we see the result of every previous this_cpu_add() in
+	 *    update_fast_ctr().
+	 *
+	 * 3. Ensures that if any reader has exited its critical section via
+	 *    fast-path, it executes a full memory barrier before we return.
+	 *    See R_W case in the comment above update_fast_ctr().
+	 */
+	synchronize_sched_expedited();
+
+	/* exclude other writers, and block the new readers completely */
+	down_write(&brw->rw_sem);
+
+	/* nobody can use fast_read_ctr, move its sum into slow_read_ctr */
+	atomic_add(clear_fast_ctr(brw), &brw->slow_read_ctr);
+
+	/* wait for all readers to complete their percpu_up_read() */
+	wait_event(brw->write_waitq, !atomic_read(&brw->slow_read_ctr));
+}
+
+void percpu_up_write(struct percpu_rw_semaphore *brw)
+{
+	/* release the lock, but the readers can't use the fast-path */
+	up_write(&brw->rw_sem);
+	/*
+	 * Insert the barrier before the next fast-path in down_read,
+	 * see W_R case in the comment above update_fast_ctr().
+	 */
+	synchronize_sched_expedited();
+	/* the last writer unblocks update_fast_ctr() */
+	atomic_dec(&brw->write_ctr);
+}
diff --git a/lib/Makefile b/lib/Makefile
index ca8cadc8fe4d..8d3c62936c8b 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -42,7 +42,6 @@ obj-$(CONFIG_GENERIC_PCI_IOMAP) += pci_iomap.o
 obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o
 obj-$(CONFIG_CHECK_SIGNATURE) += check_signature.o
 obj-$(CONFIG_DEBUG_LOCKING_API_SELFTESTS) += locking-selftest.o
-lib-$(CONFIG_PERCPU_RWSEM) += percpu-rwsem.o
 
 CFLAGS_hweight.o = $(subst $(quote),,$(CONFIG_ARCH_HWEIGHT_CFLAGS))
 obj-$(CONFIG_GENERIC_HWEIGHT) += hweight.o
diff --git a/lib/percpu-rwsem.c b/lib/percpu-rwsem.c
deleted file mode 100644
index 652a8ee8efe9..000000000000
--- a/lib/percpu-rwsem.c
+++ /dev/null
@@ -1,165 +0,0 @@
-#include <linux/atomic.h>
-#include <linux/rwsem.h>
-#include <linux/percpu.h>
-#include <linux/wait.h>
-#include <linux/lockdep.h>
-#include <linux/percpu-rwsem.h>
-#include <linux/rcupdate.h>
-#include <linux/sched.h>
-#include <linux/errno.h>
-
-int __percpu_init_rwsem(struct percpu_rw_semaphore *brw,
-			const char *name, struct lock_class_key *rwsem_key)
-{
-	brw->fast_read_ctr = alloc_percpu(int);
-	if (unlikely(!brw->fast_read_ctr))
-		return -ENOMEM;
-
-	/* ->rw_sem represents the whole percpu_rw_semaphore for lockdep */
-	__init_rwsem(&brw->rw_sem, name, rwsem_key);
-	atomic_set(&brw->write_ctr, 0);
-	atomic_set(&brw->slow_read_ctr, 0);
-	init_waitqueue_head(&brw->write_waitq);
-	return 0;
-}
-
-void percpu_free_rwsem(struct percpu_rw_semaphore *brw)
-{
-	free_percpu(brw->fast_read_ctr);
-	brw->fast_read_ctr = NULL; /* catch use after free bugs */
-}
-
-/*
- * This is the fast-path for down_read/up_read, it only needs to ensure
- * there is no pending writer (atomic_read(write_ctr) == 0) and inc/dec the
- * fast per-cpu counter. The writer uses synchronize_sched_expedited() to
- * serialize with the preempt-disabled section below.
- *
- * The nontrivial part is that we should guarantee acquire/release semantics
- * in case when
- *
- *	R_W: down_write() comes after up_read(), the writer should see all
- *	     changes done by the reader
- * or
- *	W_R: down_read() comes after up_write(), the reader should see all
- *	     changes done by the writer
- *
- * If this helper fails the callers rely on the normal rw_semaphore and
- * atomic_dec_and_test(), so in this case we have the necessary barriers.
- *
- * But if it succeeds we do not have any barriers, atomic_read(write_ctr) or
- * __this_cpu_add() below can be reordered with any LOAD/STORE done by the
- * reader inside the critical section. See the comments in down_write and
- * up_write below.
- */
-static bool update_fast_ctr(struct percpu_rw_semaphore *brw, unsigned int val)
-{
-	bool success = false;
-
-	preempt_disable();
-	if (likely(!atomic_read(&brw->write_ctr))) {
-		__this_cpu_add(*brw->fast_read_ctr, val);
-		success = true;
-	}
-	preempt_enable();
-
-	return success;
-}
-
-/*
- * Like the normal down_read() this is not recursive, the writer can
- * come after the first percpu_down_read() and create the deadlock.
- *
- * Note: returns with lock_is_held(brw->rw_sem) == T for lockdep,
- * percpu_up_read() does rwsem_release(). This pairs with the usage
- * of ->rw_sem in percpu_down/up_write().
- */
-void percpu_down_read(struct percpu_rw_semaphore *brw)
-{
-	might_sleep();
-	if (likely(update_fast_ctr(brw, +1))) {
-		rwsem_acquire_read(&brw->rw_sem.dep_map, 0, 0, _RET_IP_);
-		return;
-	}
-
-	down_read(&brw->rw_sem);
-	atomic_inc(&brw->slow_read_ctr);
-	/* avoid up_read()->rwsem_release() */
-	__up_read(&brw->rw_sem);
-}
-
-void percpu_up_read(struct percpu_rw_semaphore *brw)
-{
-	rwsem_release(&brw->rw_sem.dep_map, 1, _RET_IP_);
-
-	if (likely(update_fast_ctr(brw, -1)))
-		return;
-
-	/* false-positive is possible but harmless */
-	if (atomic_dec_and_test(&brw->slow_read_ctr))
-		wake_up_all(&brw->write_waitq);
-}
-
-static int clear_fast_ctr(struct percpu_rw_semaphore *brw)
-{
-	unsigned int sum = 0;
-	int cpu;
-
-	for_each_possible_cpu(cpu) {
-		sum += per_cpu(*brw->fast_read_ctr, cpu);
-		per_cpu(*brw->fast_read_ctr, cpu) = 0;
-	}
-
-	return sum;
-}
-
-/*
- * A writer increments ->write_ctr to force the readers to switch to the
- * slow mode, note the atomic_read() check in update_fast_ctr().
- *
- * After that the readers can only inc/dec the slow ->slow_read_ctr counter,
- * ->fast_read_ctr is stable. Once the writer moves its sum into the slow
- * counter it represents the number of active readers.
- *
- * Finally the writer takes ->rw_sem for writing and blocks the new readers,
- * then waits until the slow counter becomes zero.
- */
-void percpu_down_write(struct percpu_rw_semaphore *brw)
-{
-	/* tell update_fast_ctr() there is a pending writer */
-	atomic_inc(&brw->write_ctr);
-	/*
-	 * 1. Ensures that write_ctr != 0 is visible to any down_read/up_read
-	 *    so that update_fast_ctr() can't succeed.
-	 *
-	 * 2. Ensures we see the result of every previous this_cpu_add() in
-	 *    update_fast_ctr().
-	 *
-	 * 3. Ensures that if any reader has exited its critical section via
-	 *    fast-path, it executes a full memory barrier before we return.
-	 *    See R_W case in the comment above update_fast_ctr().
-	 */
-	synchronize_sched_expedited();
-
-	/* exclude other writers, and block the new readers completely */
-	down_write(&brw->rw_sem);
-
-	/* nobody can use fast_read_ctr, move its sum into slow_read_ctr */
-	atomic_add(clear_fast_ctr(brw), &brw->slow_read_ctr);
-
-	/* wait for all readers to complete their percpu_up_read() */
-	wait_event(brw->write_waitq, !atomic_read(&brw->slow_read_ctr));
-}
-
-void percpu_up_write(struct percpu_rw_semaphore *brw)
-{
-	/* release the lock, but the readers can't use the fast-path */
-	up_write(&brw->rw_sem);
-	/*
-	 * Insert the barrier before the next fast-path in down_read,
-	 * see W_R case in the comment above update_fast_ctr().
-	 */
-	synchronize_sched_expedited();
-	/* the last writer unblocks update_fast_ctr() */
-	atomic_dec(&brw->write_ctr);
-}
-- 
cgit 


From 35a5121b588f88686cab289b29eff3ce011f55a3 Mon Sep 17 00:00:00 2001
From: Josh Triplett <josh@joshtriplett.org>
Date: Sun, 20 Oct 2013 15:29:57 +0100
Subject: kvm: Delete prototype for non-existent function complete_pio

complete_pio ceased to exist in commit
7972995b0c346de76fe260ce0fd6bcc8ffab724a ("KVM: x86 emulator: Move
string pio emulation into emulator.c"), but the prototype remained.
Remove its prototype.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/include/asm/kvm_host.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index de388c55e7ec..5dc75edaaa1d 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -936,7 +936,6 @@ void kvm_mmu_new_cr3(struct kvm_vcpu *vcpu);
 void kvm_enable_tdp(void);
 void kvm_disable_tdp(void);
 
-int complete_pio(struct kvm_vcpu *vcpu);
 bool kvm_check_iopl(struct kvm_vcpu *vcpu);
 
 static inline gpa_t translate_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access)
-- 
cgit 


From 9da8312048edcf246ac1d7ab6aa0293f252de559 Mon Sep 17 00:00:00 2001
From: Greg Ungerer <gerg@uclinux.org>
Date: Tue, 5 Nov 2013 23:11:51 +1000
Subject: pinctrl: imx50: add pinctrl support code for the IMX50 SoC

Add code to support the specific pin arrangements of the Freescale IMX50 SoC.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/Kconfig         |   8 +
 drivers/pinctrl/Makefile        |   1 +
 drivers/pinctrl/pinctrl-imx50.c | 426 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 435 insertions(+)
 create mode 100644 drivers/pinctrl/pinctrl-imx50.c

diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index db1ddcaebf05..33f9dc1f14fd 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -130,6 +130,14 @@ config PINCTRL_IMX35
 	help
 	  Say Y here to enable the imx35 pinctrl driver
 
+config PINCTRL_IMX50
+	bool "IMX50 pinctrl driver"
+	depends on OF
+	depends on SOC_IMX50
+	select PINCTRL_IMX
+	help
+	  Say Y here to enable the imx50 pinctrl driver
+
 config PINCTRL_IMX51
 	bool "IMX51 pinctrl driver"
 	depends on OF
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index 915d19c1cdc6..4f7be2921aa5 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -25,6 +25,7 @@ obj-$(CONFIG_PINCTRL_IMX)	+= pinctrl-imx.o
 obj-$(CONFIG_PINCTRL_IMX1_CORE)	+= pinctrl-imx1-core.o
 obj-$(CONFIG_PINCTRL_IMX27)	+= pinctrl-imx27.o
 obj-$(CONFIG_PINCTRL_IMX35)	+= pinctrl-imx35.o
+obj-$(CONFIG_PINCTRL_IMX50)	+= pinctrl-imx50.o
 obj-$(CONFIG_PINCTRL_IMX51)	+= pinctrl-imx51.o
 obj-$(CONFIG_PINCTRL_IMX53)	+= pinctrl-imx53.o
 obj-$(CONFIG_PINCTRL_IMX6Q)	+= pinctrl-imx6q.o
diff --git a/drivers/pinctrl/pinctrl-imx50.c b/drivers/pinctrl/pinctrl-imx50.c
new file mode 100644
index 000000000000..b06feed1b038
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-imx50.c
@@ -0,0 +1,426 @@
+/*
+ * imx50 pinctrl driver based on imx pinmux core
+ *
+ * Copyright (C) 2013 Greg Ungerer <gerg@uclinux.org>
+ * Copyright (C) 2012 Freescale Semiconductor, Inc.
+ * Copyright (C) 2012 Linaro, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-imx.h"
+
+enum imx50_pads {
+	MX50_PAD_RESERVE0 = 0,
+	MX50_PAD_RESERVE1 = 1,
+	MX50_PAD_RESERVE2 = 2,
+	MX50_PAD_RESERVE3 = 3,
+	MX50_PAD_RESERVE4 = 4,
+	MX50_PAD_RESERVE5 = 5,
+	MX50_PAD_RESERVE6 = 6,
+	MX50_PAD_RESERVE7 = 7,
+	MX50_PAD_KEY_COL0 = 8,
+	MX50_PAD_KEY_ROW0 = 9,
+	MX50_PAD_KEY_COL1 = 10,
+	MX50_PAD_KEY_ROW1 = 11,
+	MX50_PAD_KEY_COL2 = 12,
+	MX50_PAD_KEY_ROW2 = 13,
+	MX50_PAD_KEY_COL3 = 14,
+	MX50_PAD_KEY_ROW3 = 15,
+	MX50_PAD_I2C1_SCL = 16,
+	MX50_PAD_I2C1_SDA = 17,
+	MX50_PAD_I2C2_SCL = 18,
+	MX50_PAD_I2C2_SDA = 19,
+	MX50_PAD_I2C3_SCL = 20,
+	MX50_PAD_I2C3_SDA = 21,
+	MX50_PAD_PWM1 = 22,
+	MX50_PAD_PWM2 = 23,
+	MX50_PAD_0WIRE = 24,
+	MX50_PAD_EPITO = 25,
+	MX50_PAD_WDOG = 26,
+	MX50_PAD_SSI_TXFS = 27,
+	MX50_PAD_SSI_TXC = 28,
+	MX50_PAD_SSI_TXD = 29,
+	MX50_PAD_SSI_RXD = 30,
+	MX50_PAD_SSI_RXF = 31,
+	MX50_PAD_SSI_RXC = 32,
+	MX50_PAD_UART1_TXD = 33,
+	MX50_PAD_UART1_RXD = 34,
+	MX50_PAD_UART1_CTS = 35,
+	MX50_PAD_UART1_RTS = 36,
+	MX50_PAD_UART2_TXD = 37,
+	MX50_PAD_UART2_RXD = 38,
+	MX50_PAD_UART2_CTS = 39,
+	MX50_PAD_UART2_RTS = 40,
+	MX50_PAD_UART3_TXD = 41,
+	MX50_PAD_UART3_RXD = 42,
+	MX50_PAD_UART4_TXD = 43,
+	MX50_PAD_UART4_RXD = 44,
+	MX50_PAD_CSPI_CLK = 45,
+	MX50_PAD_CSPI_MOSI = 46,
+	MX50_PAD_CSPI_MISO = 47,
+	MX50_PAD_CSPI_SS0 = 48,
+	MX50_PAD_ECSPI1_CLK = 49,
+	MX50_PAD_ECSPI1_MOSI = 50,
+	MX50_PAD_ECSPI1_MISO = 51,
+	MX50_PAD_ECSPI1_SS0 = 52,
+	MX50_PAD_ECSPI2_CLK = 53,
+	MX50_PAD_ECSPI2_MOSI = 54,
+	MX50_PAD_ECSPI2_MISO = 55,
+	MX50_PAD_ECSPI2_SS0 = 56,
+	MX50_PAD_SD1_CLK = 57,
+	MX50_PAD_SD1_CMD = 58,
+	MX50_PAD_SD1_D0 = 59,
+	MX50_PAD_SD1_D1 = 60,
+	MX50_PAD_SD1_D2 = 61,
+	MX50_PAD_SD1_D3 = 62,
+	MX50_PAD_SD2_CLK = 63,
+	MX50_PAD_SD2_CMD = 64,
+	MX50_PAD_SD2_D0 = 65,
+	MX50_PAD_SD2_D1 = 66,
+	MX50_PAD_SD2_D2 = 67,
+	MX50_PAD_SD2_D3 = 68,
+	MX50_PAD_SD2_D4 = 69,
+	MX50_PAD_SD2_D5 = 70,
+	MX50_PAD_SD2_D6 = 71,
+	MX50_PAD_SD2_D7 = 72,
+	MX50_PAD_SD2_WP = 73,
+	MX50_PAD_SD2_CD = 74,
+	MX50_PAD_DISP_D0 = 75,
+	MX50_PAD_DISP_D1 = 76,
+	MX50_PAD_DISP_D2 = 77,
+	MX50_PAD_DISP_D3 = 78,
+	MX50_PAD_DISP_D4 = 79,
+	MX50_PAD_DISP_D5 = 80,
+	MX50_PAD_DISP_D6 = 81,
+	MX50_PAD_DISP_D7 = 82,
+	MX50_PAD_DISP_WR = 83,
+	MX50_PAD_DISP_RD = 84,
+	MX50_PAD_DISP_RS = 85,
+	MX50_PAD_DISP_CS = 86,
+	MX50_PAD_DISP_BUSY = 87,
+	MX50_PAD_DISP_RESET = 88,
+	MX50_PAD_SD3_CLK = 89,
+	MX50_PAD_SD3_CMD = 90,
+	MX50_PAD_SD3_D0 = 91,
+	MX50_PAD_SD3_D1 = 92,
+	MX50_PAD_SD3_D2 = 93,
+	MX50_PAD_SD3_D3 = 94,
+	MX50_PAD_SD3_D4 = 95,
+	MX50_PAD_SD3_D5 = 96,
+	MX50_PAD_SD3_D6 = 97,
+	MX50_PAD_SD3_D7 = 98,
+	MX50_PAD_SD3_WP = 99,
+	MX50_PAD_DISP_D8 = 100,
+	MX50_PAD_DISP_D9 = 101,
+	MX50_PAD_DISP_D10 = 102,
+	MX50_PAD_DISP_D11 = 103,
+	MX50_PAD_DISP_D12 = 104,
+	MX50_PAD_DISP_D13 = 105,
+	MX50_PAD_DISP_D14 = 106,
+	MX50_PAD_DISP_D15 = 107,
+	MX50_PAD_EPDC_D0 = 108,
+	MX50_PAD_EPDC_D1 = 109,
+	MX50_PAD_EPDC_D2 = 110,
+	MX50_PAD_EPDC_D3 = 111,
+	MX50_PAD_EPDC_D4 = 112,
+	MX50_PAD_EPDC_D5 = 113,
+	MX50_PAD_EPDC_D6 = 114,
+	MX50_PAD_EPDC_D7 = 115,
+	MX50_PAD_EPDC_D8 = 116,
+	MX50_PAD_EPDC_D9 = 117,
+	MX50_PAD_EPDC_D10 = 118,
+	MX50_PAD_EPDC_D11 = 119,
+	MX50_PAD_EPDC_D12 = 120,
+	MX50_PAD_EPDC_D13 = 121,
+	MX50_PAD_EPDC_D14 = 122,
+	MX50_PAD_EPDC_D15 = 123,
+	MX50_PAD_EPDC_GDCLK = 124,
+	MX50_PAD_EPDC_GDSP = 125,
+	MX50_PAD_EPDC_GDOE = 126,
+	MX50_PAD_EPDC_GDRL = 127,
+	MX50_PAD_EPDC_SDCLK = 128,
+	MX50_PAD_EPDC_SDOEZ = 129,
+	MX50_PAD_EPDC_SDOED = 130,
+	MX50_PAD_EPDC_SDOE = 131,
+	MX50_PAD_EPDC_SDLE = 132,
+	MX50_PAD_EPDC_SDCLKN = 133,
+	MX50_PAD_EPDC_SDSHR = 134,
+	MX50_PAD_EPDC_PWRCOM = 135,
+	MX50_PAD_EPDC_PWRSTAT = 136,
+	MX50_PAD_EPDC_PWRCTRL0 = 137,
+	MX50_PAD_EPDC_PWRCTRL1 = 138,
+	MX50_PAD_EPDC_PWRCTRL2 = 139,
+	MX50_PAD_EPDC_PWRCTRL3 = 140,
+	MX50_PAD_EPDC_VCOM0 = 141,
+	MX50_PAD_EPDC_VCOM1 = 142,
+	MX50_PAD_EPDC_BDR0 = 143,
+	MX50_PAD_EPDC_BDR1 = 144,
+	MX50_PAD_EPDC_SDCE0 = 145,
+	MX50_PAD_EPDC_SDCE1 = 146,
+	MX50_PAD_EPDC_SDCE2 = 147,
+	MX50_PAD_EPDC_SDCE3 = 148,
+	MX50_PAD_EPDC_SDCE4 = 149,
+	MX50_PAD_EPDC_SDCE5 = 150,
+	MX50_PAD_EIM_DA0 = 151,
+	MX50_PAD_EIM_DA1 = 152,
+	MX50_PAD_EIM_DA2 = 153,
+	MX50_PAD_EIM_DA3 = 154,
+	MX50_PAD_EIM_DA4 = 155,
+	MX50_PAD_EIM_DA5 = 156,
+	MX50_PAD_EIM_DA6 = 157,
+	MX50_PAD_EIM_DA7 = 158,
+	MX50_PAD_EIM_DA8 = 159,
+	MX50_PAD_EIM_DA9 = 160,
+	MX50_PAD_EIM_DA10 = 161,
+	MX50_PAD_EIM_DA11 = 162,
+	MX50_PAD_EIM_DA12 = 163,
+	MX50_PAD_EIM_DA13 = 164,
+	MX50_PAD_EIM_DA14 = 165,
+	MX50_PAD_EIM_DA15 = 166,
+	MX50_PAD_EIM_CS2 = 167,
+	MX50_PAD_EIM_CS1 = 168,
+	MX50_PAD_EIM_CS0 = 169,
+	MX50_PAD_EIM_EB0 = 170,
+	MX50_PAD_EIM_EB1 = 171,
+	MX50_PAD_EIM_WAIT = 172,
+	MX50_PAD_EIM_BCLK = 173,
+	MX50_PAD_EIM_RDY = 174,
+	MX50_PAD_EIM_OE = 175,
+	MX50_PAD_EIM_RW = 176,
+	MX50_PAD_EIM_LBA = 177,
+	MX50_PAD_EIM_CRE = 178,
+};
+
+/* Pad names for the pinmux subsystem */
+static const struct pinctrl_pin_desc imx50_pinctrl_pads[] = {
+	IMX_PINCTRL_PIN(MX50_PAD_RESERVE0),
+	IMX_PINCTRL_PIN(MX50_PAD_RESERVE1),
+	IMX_PINCTRL_PIN(MX50_PAD_RESERVE2),
+	IMX_PINCTRL_PIN(MX50_PAD_RESERVE3),
+	IMX_PINCTRL_PIN(MX50_PAD_RESERVE4),
+	IMX_PINCTRL_PIN(MX50_PAD_RESERVE5),
+	IMX_PINCTRL_PIN(MX50_PAD_RESERVE6),
+	IMX_PINCTRL_PIN(MX50_PAD_RESERVE7),
+	IMX_PINCTRL_PIN(MX50_PAD_KEY_COL0),
+	IMX_PINCTRL_PIN(MX50_PAD_KEY_ROW0),
+	IMX_PINCTRL_PIN(MX50_PAD_KEY_COL1),
+	IMX_PINCTRL_PIN(MX50_PAD_KEY_ROW1),
+	IMX_PINCTRL_PIN(MX50_PAD_KEY_COL2),
+	IMX_PINCTRL_PIN(MX50_PAD_KEY_ROW2),
+	IMX_PINCTRL_PIN(MX50_PAD_KEY_COL3),
+	IMX_PINCTRL_PIN(MX50_PAD_KEY_ROW3),
+	IMX_PINCTRL_PIN(MX50_PAD_I2C1_SCL),
+	IMX_PINCTRL_PIN(MX50_PAD_I2C1_SDA),
+	IMX_PINCTRL_PIN(MX50_PAD_I2C2_SCL),
+	IMX_PINCTRL_PIN(MX50_PAD_I2C2_SDA),
+	IMX_PINCTRL_PIN(MX50_PAD_I2C3_SCL),
+	IMX_PINCTRL_PIN(MX50_PAD_I2C3_SDA),
+	IMX_PINCTRL_PIN(MX50_PAD_PWM1),
+	IMX_PINCTRL_PIN(MX50_PAD_PWM2),
+	IMX_PINCTRL_PIN(MX50_PAD_0WIRE),
+	IMX_PINCTRL_PIN(MX50_PAD_EPITO),
+	IMX_PINCTRL_PIN(MX50_PAD_WDOG),
+	IMX_PINCTRL_PIN(MX50_PAD_SSI_TXFS),
+	IMX_PINCTRL_PIN(MX50_PAD_SSI_TXC),
+	IMX_PINCTRL_PIN(MX50_PAD_SSI_TXD),
+	IMX_PINCTRL_PIN(MX50_PAD_SSI_RXD),
+	IMX_PINCTRL_PIN(MX50_PAD_SSI_RXF),
+	IMX_PINCTRL_PIN(MX50_PAD_SSI_RXC),
+	IMX_PINCTRL_PIN(MX50_PAD_UART1_TXD),
+	IMX_PINCTRL_PIN(MX50_PAD_UART1_RXD),
+	IMX_PINCTRL_PIN(MX50_PAD_UART1_CTS),
+	IMX_PINCTRL_PIN(MX50_PAD_UART1_RTS),
+	IMX_PINCTRL_PIN(MX50_PAD_UART2_TXD),
+	IMX_PINCTRL_PIN(MX50_PAD_UART2_RXD),
+	IMX_PINCTRL_PIN(MX50_PAD_UART2_CTS),
+	IMX_PINCTRL_PIN(MX50_PAD_UART2_RTS),
+	IMX_PINCTRL_PIN(MX50_PAD_UART3_TXD),
+	IMX_PINCTRL_PIN(MX50_PAD_UART3_RXD),
+	IMX_PINCTRL_PIN(MX50_PAD_UART4_TXD),
+	IMX_PINCTRL_PIN(MX50_PAD_UART4_RXD),
+	IMX_PINCTRL_PIN(MX50_PAD_CSPI_CLK),
+	IMX_PINCTRL_PIN(MX50_PAD_CSPI_MOSI),
+	IMX_PINCTRL_PIN(MX50_PAD_CSPI_MISO),
+	IMX_PINCTRL_PIN(MX50_PAD_CSPI_SS0),
+	IMX_PINCTRL_PIN(MX50_PAD_ECSPI1_CLK),
+	IMX_PINCTRL_PIN(MX50_PAD_ECSPI1_MOSI),
+	IMX_PINCTRL_PIN(MX50_PAD_ECSPI1_MISO),
+	IMX_PINCTRL_PIN(MX50_PAD_ECSPI1_SS0),
+	IMX_PINCTRL_PIN(MX50_PAD_ECSPI2_CLK),
+	IMX_PINCTRL_PIN(MX50_PAD_ECSPI2_MOSI),
+	IMX_PINCTRL_PIN(MX50_PAD_ECSPI2_MISO),
+	IMX_PINCTRL_PIN(MX50_PAD_ECSPI2_SS0),
+	IMX_PINCTRL_PIN(MX50_PAD_SD1_CLK),
+	IMX_PINCTRL_PIN(MX50_PAD_SD1_CMD),
+	IMX_PINCTRL_PIN(MX50_PAD_SD1_D0),
+	IMX_PINCTRL_PIN(MX50_PAD_SD1_D1),
+	IMX_PINCTRL_PIN(MX50_PAD_SD1_D2),
+	IMX_PINCTRL_PIN(MX50_PAD_SD1_D3),
+	IMX_PINCTRL_PIN(MX50_PAD_SD2_CLK),
+	IMX_PINCTRL_PIN(MX50_PAD_SD2_CMD),
+	IMX_PINCTRL_PIN(MX50_PAD_SD2_D0),
+	IMX_PINCTRL_PIN(MX50_PAD_SD2_D1),
+	IMX_PINCTRL_PIN(MX50_PAD_SD2_D2),
+	IMX_PINCTRL_PIN(MX50_PAD_SD2_D3),
+	IMX_PINCTRL_PIN(MX50_PAD_SD2_D4),
+	IMX_PINCTRL_PIN(MX50_PAD_SD2_D5),
+	IMX_PINCTRL_PIN(MX50_PAD_SD2_D6),
+	IMX_PINCTRL_PIN(MX50_PAD_SD2_D7),
+	IMX_PINCTRL_PIN(MX50_PAD_SD2_WP),
+	IMX_PINCTRL_PIN(MX50_PAD_SD2_CD),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_D0),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_D1),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_D2),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_D3),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_D4),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_D5),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_D6),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_D7),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_WR),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_RD),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_RS),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_CS),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_BUSY),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_RESET),
+	IMX_PINCTRL_PIN(MX50_PAD_SD3_CLK),
+	IMX_PINCTRL_PIN(MX50_PAD_SD3_CMD),
+	IMX_PINCTRL_PIN(MX50_PAD_SD3_D0),
+	IMX_PINCTRL_PIN(MX50_PAD_SD3_D1),
+	IMX_PINCTRL_PIN(MX50_PAD_SD3_D2),
+	IMX_PINCTRL_PIN(MX50_PAD_SD3_D3),
+	IMX_PINCTRL_PIN(MX50_PAD_SD3_D4),
+	IMX_PINCTRL_PIN(MX50_PAD_SD3_D5),
+	IMX_PINCTRL_PIN(MX50_PAD_SD3_D6),
+	IMX_PINCTRL_PIN(MX50_PAD_SD3_D7),
+	IMX_PINCTRL_PIN(MX50_PAD_SD3_WP),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_D8),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_D9),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_D10),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_D11),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_D12),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_D13),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_D14),
+	IMX_PINCTRL_PIN(MX50_PAD_DISP_D15),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_D0),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_D1),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_D2),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_D3),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_D4),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_D5),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_D6),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_D7),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_D8),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_D9),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_D10),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_D11),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_D12),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_D13),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_D14),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_D15),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_GDCLK),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_GDSP),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_GDOE),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_GDRL),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_SDCLK),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_SDOEZ),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_SDOED),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_SDOE),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_SDLE),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_SDCLKN),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_SDSHR),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_PWRCOM),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_PWRSTAT),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_PWRCTRL0),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_PWRCTRL1),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_PWRCTRL2),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_PWRCTRL3),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_VCOM0),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_VCOM1),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_BDR0),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_BDR1),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_SDCE0),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_SDCE1),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_SDCE2),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_SDCE3),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_SDCE4),
+	IMX_PINCTRL_PIN(MX50_PAD_EPDC_SDCE5),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_DA0),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_DA1),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_DA2),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_DA3),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_DA4),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_DA5),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_DA6),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_DA7),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_DA8),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_DA9),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_DA10),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_DA11),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_DA12),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_DA13),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_DA14),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_DA15),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_CS2),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_CS1),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_CS0),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_EB0),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_EB1),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_WAIT),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_BCLK),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_RDY),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_OE),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_RW),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_LBA),
+	IMX_PINCTRL_PIN(MX50_PAD_EIM_CRE),
+};
+
+static struct imx_pinctrl_soc_info imx50_pinctrl_info = {
+	.pins = imx50_pinctrl_pads,
+	.npins = ARRAY_SIZE(imx50_pinctrl_pads),
+};
+
+static struct of_device_id imx50_pinctrl_of_match[] = {
+	{ .compatible = "fsl,imx50-iomuxc", },
+	{ /* sentinel */ }
+};
+
+static int imx50_pinctrl_probe(struct platform_device *pdev)
+{
+	return imx_pinctrl_probe(pdev, &imx50_pinctrl_info);
+}
+
+static struct platform_driver imx50_pinctrl_driver = {
+	.driver = {
+		.name = "imx50-pinctrl",
+		.owner = THIS_MODULE,
+		.of_match_table = of_match_ptr(imx50_pinctrl_of_match),
+	},
+	.probe = imx50_pinctrl_probe,
+	.remove = imx_pinctrl_remove,
+};
+
+static int __init imx50_pinctrl_init(void)
+{
+	return platform_driver_register(&imx50_pinctrl_driver);
+}
+arch_initcall(imx50_pinctrl_init);
+
+static void __exit imx50_pinctrl_exit(void)
+{
+	platform_driver_unregister(&imx50_pinctrl_driver);
+}
+module_exit(imx50_pinctrl_exit);
+MODULE_DESCRIPTION("Freescale IMX50 pinctrl driver");
+MODULE_LICENSE("GPL v2");
-- 
cgit 


From a890b6fefd1775a1c3a7d8fe8af968a3a7b23c04 Mon Sep 17 00:00:00 2001
From: Josh Triplett <josh@joshtriplett.org>
Date: Sun, 20 Oct 2013 15:30:16 +0100
Subject: kvm: Delete prototype for non-existent function kvm_check_iopl

The prototype for kvm_check_iopl appeared in commit
f850e2e603bf5a05b0aee7901857cf85715aa694 ("KVM: x86 emulator: Check IOPL
level during io instruction emulation"), but the function never actually
existed.  Remove the prototype.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/include/asm/kvm_host.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 5dc75edaaa1d..ae5d7830855c 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -936,8 +936,6 @@ void kvm_mmu_new_cr3(struct kvm_vcpu *vcpu);
 void kvm_enable_tdp(void);
 void kvm_disable_tdp(void);
 
-bool kvm_check_iopl(struct kvm_vcpu *vcpu);
-
 static inline gpa_t translate_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access)
 {
 	return gpa;
-- 
cgit 


From 8a24284275f682e3f92b0f91d7d06f2778bc4256 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Tue, 5 Nov 2013 21:27:02 -0600
Subject: gpio: pl061: don't depend on CONFIG_ARM

The pl061 driver has no real dependency on ARM, so remove the kconfig
dependency.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: linux-gpio@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 62eb9ef47e78..972eaa0c9f2a 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -213,7 +213,7 @@ config GPIO_OCTEON
 
 config GPIO_PL061
 	bool "PrimeCell PL061 GPIO support"
-	depends on ARM && ARM_AMBA
+	depends on ARM_AMBA
 	select GENERIC_IRQ_CHIP
 	help
 	  Say yes here to support the PrimeCell PL061 GPIO device
-- 
cgit 


From 68f9672b1388f0999d4087b72c3c80cf1c983fa2 Mon Sep 17 00:00:00 2001
From: Oskar Schirmer <oskar@scara.com>
Date: Tue, 5 Nov 2013 12:13:54 +0000
Subject: ASoC: fsl: imx-pcm-fiq: remove bogus period delta calculation

Originally snd_hrtimer_callback() used iprtd->period_time for
some jiffies based estimation to determine the right moment
to call snd_pcm_period_elapsed(). As timer drifts may well be a
problem, this was changed in commit b4e82b5b785670b6 to be based
on buffer transmission progress, using iprtd->offset and
runtime->buffer_size to calculate the amount of data since last
period had elapsed.

Unfortunately, iprtd->offset counts in bytes, while
runtime->buffer_size counts frames, so adding these to find some
delta is like comparing apples and oranges, and eventually results
in negative delta values every now and then. This is no big harm,
because it simply causes snd_pcm_period_elapsed() being called
more often than necessary, as negative delta is taken for a
large unsigned value by implicit conversion rule.
Nonetheless, the calculation is broken, so one would replace
the runtime->buffer_size by its equivalent in bytes.

But then, there are chances snd_pcm_period_elapsed() is called
late, because calculating the moment for the elapsed period
into delta is based against the iprtd->last_offset, which is not
necessarily the first byte of the period in question, but some
random byte which the FIQ handler left us with in r8/r9 by
accident. Again, negative impact is low, as there are plenty of
periods already prefilled with data, and snd_pcm_period_elapsed()
will probably be called latest when the following period is
reached. However, the calculation is conceptually broken, and we
are best off removing the clever stuff altogether.

snd_pcm_period_elapsed() is now simply called once everytime
snd_hrtimer_callback() is run, which may not be most accurate,
but at least this way we are quite sure we dont miss an end of
period. There is not much extra effort wasted by superfluous
calls to snd_pcm_period_elapsed(), as the timer frequency
closely matches the period size anyway.

Signed-off-by: Oskar Schirmer <oskar@scara.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/imx-pcm-fiq.c | 21 ++-------------------
 1 file changed, 2 insertions(+), 19 deletions(-)

diff --git a/sound/soc/fsl/imx-pcm-fiq.c b/sound/soc/fsl/imx-pcm-fiq.c
index 34043c55f2a6..94720a6dd7b6 100644
--- a/sound/soc/fsl/imx-pcm-fiq.c
+++ b/sound/soc/fsl/imx-pcm-fiq.c
@@ -39,8 +39,6 @@ struct imx_pcm_runtime_data {
 	unsigned int period;
 	int periods;
 	unsigned long offset;
-	unsigned long last_offset;
-	unsigned long size;
 	struct hrtimer hrt;
 	int poll_time_ns;
 	struct snd_pcm_substream *substream;
@@ -54,7 +52,6 @@ static enum hrtimer_restart snd_hrtimer_callback(struct hrtimer *hrt)
 	struct snd_pcm_substream *substream = iprtd->substream;
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct pt_regs regs;
-	unsigned long delta;
 
 	if (!atomic_read(&iprtd->running))
 		return HRTIMER_NORESTART;
@@ -66,19 +63,7 @@ static enum hrtimer_restart snd_hrtimer_callback(struct hrtimer *hrt)
 	else
 		iprtd->offset = regs.ARM_r9 & 0xffff;
 
-	/* How much data have we transferred since the last period report? */
-	if (iprtd->offset >= iprtd->last_offset)
-		delta = iprtd->offset - iprtd->last_offset;
-	else
-		delta = runtime->buffer_size + iprtd->offset
-			- iprtd->last_offset;
-
-	/* If we've transferred at least a period then report it and
-	 * reset our poll time */
-	if (delta >= iprtd->period) {
-		snd_pcm_period_elapsed(substream);
-		iprtd->last_offset = iprtd->offset;
-	}
+	snd_pcm_period_elapsed(substream);
 
 	hrtimer_forward_now(hrt, ns_to_ktime(iprtd->poll_time_ns));
 
@@ -95,11 +80,9 @@ static int snd_imx_pcm_hw_params(struct snd_pcm_substream *substream,
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct imx_pcm_runtime_data *iprtd = runtime->private_data;
 
-	iprtd->size = params_buffer_bytes(params);
 	iprtd->periods = params_periods(params);
-	iprtd->period = params_period_bytes(params) ;
+	iprtd->period = params_period_bytes(params);
 	iprtd->offset = 0;
-	iprtd->last_offset = 0;
 	iprtd->poll_time_ns = 1000000000 / params_rate(params) *
 				params_period_size(params);
 	snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
-- 
cgit 


From 993571273275bfecb5161806796eb368db234106 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Tue, 5 Nov 2013 17:21:22 -0200
Subject: gpio: gpio-mxs: Remove unneeded dt checks

mxs is a devicetree only platform, so there is no need to check whether we
are in dt or platform data case.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-mxs.c | 32 +++++++++-----------------------
 1 file changed, 9 insertions(+), 23 deletions(-)

diff --git a/drivers/gpio/gpio-mxs.c b/drivers/gpio/gpio-mxs.c
index f8e6af20dfbf..532bcb336eff 100644
--- a/drivers/gpio/gpio-mxs.c
+++ b/drivers/gpio/gpio-mxs.c
@@ -254,7 +254,6 @@ static int mxs_gpio_probe(struct platform_device *pdev)
 	struct device_node *parent;
 	static void __iomem *base;
 	struct mxs_gpio_port *port;
-	struct resource *iores = NULL;
 	int irq_base;
 	int err;
 
@@ -262,16 +261,10 @@ static int mxs_gpio_probe(struct platform_device *pdev)
 	if (!port)
 		return -ENOMEM;
 
-	if (np) {
-		port->id = of_alias_get_id(np, "gpio");
-		if (port->id < 0)
-			return port->id;
-		port->devid = (enum mxs_gpio_id) of_id->data;
-	} else {
-		port->id = pdev->id;
-		port->devid = pdev->id_entry->driver_data;
-	}
-
+	port->id = of_alias_get_id(np, "gpio");
+	if (port->id < 0)
+		return port->id;
+	port->devid = (enum mxs_gpio_id) of_id->data;
 	port->irq = platform_get_irq(pdev, 0);
 	if (port->irq < 0)
 		return port->irq;
@@ -281,18 +274,11 @@ static int mxs_gpio_probe(struct platform_device *pdev)
 	 * share the same one
 	 */
 	if (!base) {
-		if (np) {
-			parent = of_get_parent(np);
-			base = of_iomap(parent, 0);
-			of_node_put(parent);
-			if (!base)
-				return -EADDRNOTAVAIL;
-		} else {
-			iores = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-			base = devm_ioremap_resource(&pdev->dev, iores);
-			if (IS_ERR(base))
-				return PTR_ERR(base);
-		}
+		parent = of_get_parent(np);
+		base = of_iomap(parent, 0);
+		of_node_put(parent);
+		if (!base)
+			return -EADDRNOTAVAIL;
 	}
 	port->base = base;
 
-- 
cgit 


From d5b6b65e75ce607c2734227524e11574317a1c1a Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Wed, 6 Nov 2013 10:50:44 +0100
Subject: ALSA: hda - Make sure mute LEDs stay on during runtime suspend
 (Realtek)

Some HP machines with Realtek codecs have mute LEDs connected to VREF pins.
However when these go into runtime suspend, the pin powers down and its
pin control is disabled, thus disabling the LED too.

This patch fixes that issue by making sure that the pin stays in D0 with
correct pin control.

Cc: stable@kernel.org
BugLink: https://bugs.launchpad.net/bugs/1248465
Tested-by: Franz Hsieh <franz.hsieh@canonical.com>
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 02071a58f3f8..f19cd4fcb024 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -2959,6 +2959,23 @@ static void alc269_fixup_mic_mute_hook(void *private_data, int enabled)
 		snd_hda_set_pin_ctl_cache(codec, spec->mute_led_nid, pinval);
 }
 
+/* Make sure the led works even in runtime suspend */
+static unsigned int led_power_filter(struct hda_codec *codec,
+						  hda_nid_t nid,
+						  unsigned int power_state)
+{
+	struct alc_spec *spec = codec->spec;
+
+	if (power_state != AC_PWRST_D3 || nid != spec->mute_led_nid)
+		return power_state;
+
+	/* Set pin ctl again, it might have just been set to 0 */
+	snd_hda_set_pin_ctl(codec, nid,
+			    snd_hda_codec_get_pin_target(codec, nid));
+
+	return AC_PWRST_D0;
+}
+
 static void alc269_fixup_hp_mute_led(struct hda_codec *codec,
 				     const struct hda_fixup *fix, int action)
 {
@@ -2978,6 +2995,7 @@ static void alc269_fixup_hp_mute_led(struct hda_codec *codec,
 		spec->mute_led_nid = pin - 0x0a + 0x18;
 		spec->gen.vmaster_mute.hook = alc269_fixup_mic_mute_hook;
 		spec->gen.vmaster_mute_enum = 1;
+		codec->power_filter = led_power_filter;
 		snd_printd("Detected mute LED for %x:%d\n", spec->mute_led_nid,
 			   spec->mute_led_polarity);
 		break;
@@ -2993,6 +3011,7 @@ static void alc269_fixup_hp_mute_led_mic1(struct hda_codec *codec,
 		spec->mute_led_nid = 0x18;
 		spec->gen.vmaster_mute.hook = alc269_fixup_mic_mute_hook;
 		spec->gen.vmaster_mute_enum = 1;
+		codec->power_filter = led_power_filter;
 	}
 }
 
@@ -3005,6 +3024,7 @@ static void alc269_fixup_hp_mute_led_mic2(struct hda_codec *codec,
 		spec->mute_led_nid = 0x19;
 		spec->gen.vmaster_mute.hook = alc269_fixup_mic_mute_hook;
 		spec->gen.vmaster_mute_enum = 1;
+		codec->power_filter = led_power_filter;
 	}
 }
 
-- 
cgit 


From 18ea3dbc9e5c8a53a361b17c4a5676ea6f4bcb72 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <Marc.Zyngier@arm.com>
Date: Tue, 5 Nov 2013 18:29:45 +0000
Subject: arm64: KVM: initialize HYP mode following the kernel endianness

Force SCTLR_EL2.EE to 1 if the kernel is compiled as BE.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kvm/hyp-init.S | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp-init.S b/arch/arm64/kvm/hyp-init.S
index ba84e6705e20..2b0244d65c16 100644
--- a/arch/arm64/kvm/hyp-init.S
+++ b/arch/arm64/kvm/hyp-init.S
@@ -74,7 +74,10 @@ __do_hyp_init:
 	msr	mair_el2, x4
 	isb
 
-	mov	x4, #SCTLR_EL2_FLAGS
+	mrs	x4, sctlr_el2
+	and	x4, x4, #SCTLR_EL2_EE	// preserve endianness of EL2
+	ldr	x5, =SCTLR_EL2_FLAGS
+	orr	x4, x4, x5
 	msr	sctlr_el2, x4
 	isb
 
-- 
cgit 


From c5b2c0f5203b3bc678a8967daedf7114029975ae Mon Sep 17 00:00:00 2001
From: Marc Zyngier <Marc.Zyngier@arm.com>
Date: Tue, 5 Nov 2013 18:29:46 +0000
Subject: arm64: KVM: vgic: byteswap GICv2 access on world switch if BE

Ensure that accesses to the GICH_* registers are byteswapped
when the kernel is compiled as big-endian.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kvm/hyp.S | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S
index 1ac0bbbdddb2..3b47c36e10ff 100644
--- a/arch/arm64/kvm/hyp.S
+++ b/arch/arm64/kvm/hyp.S
@@ -403,6 +403,14 @@ __kvm_hyp_code_start:
 	ldr	w9, [x2, #GICH_ELRSR0]
 	ldr	w10, [x2, #GICH_ELRSR1]
 	ldr	w11, [x2, #GICH_APR]
+CPU_BE(	rev	w4,  w4  )
+CPU_BE(	rev	w5,  w5  )
+CPU_BE(	rev	w6,  w6  )
+CPU_BE(	rev	w7,  w7  )
+CPU_BE(	rev	w8,  w8  )
+CPU_BE(	rev	w9,  w9  )
+CPU_BE(	rev	w10, w10 )
+CPU_BE(	rev	w11, w11 )
 
 	str	w4, [x3, #VGIC_CPU_HCR]
 	str	w5, [x3, #VGIC_CPU_VMCR]
@@ -421,6 +429,7 @@ __kvm_hyp_code_start:
 	ldr	w4, [x3, #VGIC_CPU_NR_LR]
 	add	x3, x3, #VGIC_CPU_LR
 1:	ldr	w5, [x2], #4
+CPU_BE(	rev	w5, w5 )
 	str	w5, [x3], #4
 	sub	w4, w4, #1
 	cbnz	w4, 1b
@@ -446,6 +455,9 @@ __kvm_hyp_code_start:
 	ldr	w4, [x3, #VGIC_CPU_HCR]
 	ldr	w5, [x3, #VGIC_CPU_VMCR]
 	ldr	w6, [x3, #VGIC_CPU_APR]
+CPU_BE(	rev	w4, w4 )
+CPU_BE(	rev	w5, w5 )
+CPU_BE(	rev	w6, w6 )
 
 	str	w4, [x2, #GICH_HCR]
 	str	w5, [x2, #GICH_VMCR]
@@ -456,6 +468,7 @@ __kvm_hyp_code_start:
 	ldr	w4, [x3, #VGIC_CPU_NR_LR]
 	add	x3, x3, #VGIC_CPU_LR
 1:	ldr	w5, [x3], #4
+CPU_BE(	rev	w5, w5 )
 	str	w5, [x2], #4
 	sub	w4, w4, #1
 	cbnz	w4, 1b
-- 
cgit 


From ddb146da23cb08851fa418481dd84412f99eec1e Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 18:39:48 +0100
Subject: ASoC: blackfin: Use WARN_ON() instead of BUG_ON()

Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/blackfin/bf5xx-sport.c | 32 ++++++++++++++++++++------------
 1 file changed, 20 insertions(+), 12 deletions(-)

diff --git a/sound/soc/blackfin/bf5xx-sport.c b/sound/soc/blackfin/bf5xx-sport.c
index 695351241db8..9dfa1241ea66 100644
--- a/sound/soc/blackfin/bf5xx-sport.c
+++ b/sound/soc/blackfin/bf5xx-sport.c
@@ -179,8 +179,9 @@ static inline int sport_hook_rx_dummy(struct sport_device *sport)
 	struct dmasg *desc, temp_desc;
 	unsigned long flags;
 
-	BUG_ON(sport->dummy_rx_desc == NULL);
-	BUG_ON(sport->curr_rx_desc == sport->dummy_rx_desc);
+	if (WARN_ON(!sport->dummy_rx_desc) ||
+	    WARN_ON(sport->curr_rx_desc == sport->dummy_rx_desc))
+		return -EINVAL;
 
 	/* Maybe the dummy buffer descriptor ring is damaged */
 	sport->dummy_rx_desc->next_desc_addr = sport->dummy_rx_desc + 1;
@@ -250,8 +251,9 @@ int sport_rx_start(struct sport_device *sport)
 		return -EBUSY;
 	if (sport->tx_run) {
 		/* tx is running, rx is not running */
-		BUG_ON(sport->dma_rx_desc == NULL);
-		BUG_ON(sport->curr_rx_desc != sport->dummy_rx_desc);
+		if (WARN_ON(!sport->dma_rx_desc) ||
+		    WARN_ON(sport->curr_rx_desc != sport->dummy_rx_desc))
+			return -EINVAL;
 		local_irq_save(flags);
 		while ((get_dma_curr_desc_ptr(sport->dma_rx_chan) -
 			sizeof(struct dmasg)) != sport->dummy_rx_desc)
@@ -298,8 +300,9 @@ static inline int sport_hook_tx_dummy(struct sport_device *sport)
 	struct dmasg *desc, temp_desc;
 	unsigned long flags;
 
-	BUG_ON(sport->dummy_tx_desc == NULL);
-	BUG_ON(sport->curr_tx_desc == sport->dummy_tx_desc);
+	if (WARN_ON(!sport->dummy_tx_desc) ||
+	    WARN_ON(sport->curr_tx_desc == sport->dummy_tx_desc))
+		return -EINVAL;
 
 	sport->dummy_tx_desc->next_desc_addr = sport->dummy_tx_desc + 1;
 
@@ -331,8 +334,9 @@ int sport_tx_start(struct sport_device *sport)
 	if (sport->tx_run)
 		return -EBUSY;
 	if (sport->rx_run) {
-		BUG_ON(sport->dma_tx_desc == NULL);
-		BUG_ON(sport->curr_tx_desc != sport->dummy_tx_desc);
+		if (WARN_ON(!sport->dma_tx_desc) ||
+		    WARN_ON(sport->curr_tx_desc != sport->dummy_tx_desc))
+			return -EINVAL;
 		/* Hook the normal buffer descriptor */
 		local_irq_save(flags);
 		while ((get_dma_curr_desc_ptr(sport->dma_tx_chan) -
@@ -767,7 +771,8 @@ static irqreturn_t err_handler(int irq, void *dev_id)
 int sport_set_rx_callback(struct sport_device *sport,
 		       void (*rx_callback)(void *), void *rx_data)
 {
-	BUG_ON(rx_callback == NULL);
+	if (WARN_ON(!rx_callback))
+		return -EINVAL;
 	sport->rx_callback = rx_callback;
 	sport->rx_data = rx_data;
 
@@ -778,7 +783,8 @@ EXPORT_SYMBOL(sport_set_rx_callback);
 int sport_set_tx_callback(struct sport_device *sport,
 		void (*tx_callback)(void *), void *tx_data)
 {
-	BUG_ON(tx_callback == NULL);
+	if (WARN_ON(!tx_callback))
+		return -EINVAL;
 	sport->tx_callback = tx_callback;
 	sport->tx_data = tx_data;
 
@@ -789,7 +795,8 @@ EXPORT_SYMBOL(sport_set_tx_callback);
 int sport_set_err_callback(struct sport_device *sport,
 		void (*err_callback)(void *), void *err_data)
 {
-	BUG_ON(err_callback == NULL);
+	if (WARN_ON(!err_callback))
+		return -EINVAL;
 	sport->err_callback = err_callback;
 	sport->err_data = err_data;
 
@@ -856,7 +863,8 @@ struct sport_device *sport_init(struct platform_device *pdev,
 
 	param.wdsize = wdsize;
 	param.dummy_count = dummy_count;
-	BUG_ON(param.wdsize == 0 || param.dummy_count == 0);
+	if (WARN_ON(param.wdsize == 0 || param.dummy_count == 0))
+		return NULL;
 
 	ret = sport_config_pdev(pdev, &param);
 	if (ret)
-- 
cgit 


From bee026d0fe4bcc2b29e9279c319ed5e60a3bda97 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 18:39:49 +0100
Subject: ASoC: max98088: Use WARN_ON() instead of BUG_ON()

Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/max98088.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/max98088.c b/sound/soc/codecs/max98088.c
index 566a367c94fa..8bd2d8a6a2f5 100644
--- a/sound/soc/codecs/max98088.c
+++ b/sound/soc/codecs/max98088.c
@@ -621,8 +621,9 @@ static void m98088_eq_band(struct snd_soc_codec *codec, unsigned int dai,
        unsigned int eq_reg;
        unsigned int i;
 
-       BUG_ON(band > 4);
-       BUG_ON(dai > 1);
+	if (WARN_ON(band > 4) ||
+	    WARN_ON(dai > 1))
+		return;
 
        /* Load the base register address */
        eq_reg = dai ? M98088_REG_84_DAI2_EQ_BASE : M98088_REG_52_DAI1_EQ_BASE;
@@ -962,7 +963,8 @@ static int max98088_line_pga(struct snd_soc_dapm_widget *w,
        struct max98088_priv *max98088 = snd_soc_codec_get_drvdata(codec);
        u8 *state;
 
-       BUG_ON(!((channel == 1) || (channel == 2)));
+	if (WARN_ON(!(channel == 1 || channel == 2)))
+		return -EINVAL;
 
        switch (line) {
        case LINE_INA:
-- 
cgit 


From a922cd7151371f429c7456951b77999c75520955 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 18:39:50 +0100
Subject: ASoC: max98095: Use WARN_ON() instead of BUG_ON()

Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/max98095.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/sound/soc/codecs/max98095.c b/sound/soc/codecs/max98095.c
index 8dbcacd44e6a..04618a5f2a6f 100644
--- a/sound/soc/codecs/max98095.c
+++ b/sound/soc/codecs/max98095.c
@@ -637,8 +637,9 @@ static void m98095_eq_band(struct snd_soc_codec *codec, unsigned int dai,
 	unsigned int eq_reg;
 	unsigned int i;
 
-	BUG_ON(band > 4);
-	BUG_ON(dai > 1);
+	if (WARN_ON(band > 4) ||
+	    WARN_ON(dai > 1))
+		return;
 
 	/* Load the base register address */
 	eq_reg = dai ? M98095_142_DAI2_EQ_BASE : M98095_110_DAI1_EQ_BASE;
@@ -662,8 +663,9 @@ static void m98095_biquad_band(struct snd_soc_codec *codec, unsigned int dai,
 	unsigned int bq_reg;
 	unsigned int i;
 
-	BUG_ON(band > 1);
-	BUG_ON(dai > 1);
+	if (WARN_ON(band > 1) ||
+	    WARN_ON(dai > 1))
+		return;
 
 	/* Load the base register address */
 	bq_reg = dai ? M98095_17E_DAI2_BQ_BASE : M98095_174_DAI1_BQ_BASE;
@@ -1011,7 +1013,8 @@ static int max98095_line_pga(struct snd_soc_dapm_widget *w,
 	struct max98095_priv *max98095 = snd_soc_codec_get_drvdata(codec);
 	u8 *state;
 
-	BUG_ON(!((channel == 1) || (channel == 2)));
+	if (WARN_ON(!(channel == 1 || channel == 2)))
+		return -EINVAL;
 
 	state = &max98095->lin_state;
 
@@ -1868,7 +1871,8 @@ static int max98095_put_eq_enum(struct snd_kcontrol *kcontrol,
 	int fs, best, best_val, i;
 	int regmask, regsave;
 
-	BUG_ON(channel > 1);
+	if (WARN_ON(channel > 1))
+		return -EINVAL;
 
 	if (!pdata || !max98095->eq_textcnt)
 		return 0;
-- 
cgit 


From 773392b25ce1e5d99c72fcc227bb53ba358497be Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 18:39:51 +0100
Subject: ASoC: tpa6130a2: Use WARN_ON() instead of BUG_ON()

Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/tpa6130a2.c | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/sound/soc/codecs/tpa6130a2.c b/sound/soc/codecs/tpa6130a2.c
index c58bee8346ce..348552e1771e 100644
--- a/sound/soc/codecs/tpa6130a2.c
+++ b/sound/soc/codecs/tpa6130a2.c
@@ -55,7 +55,8 @@ static int tpa6130a2_i2c_read(int reg)
 	struct tpa6130a2_data *data;
 	int val;
 
-	BUG_ON(tpa6130a2_client == NULL);
+	if (WARN_ON(!tpa6130a2_client))
+		return -EINVAL;
 	data = i2c_get_clientdata(tpa6130a2_client);
 
 	/* If powered off, return the cached value */
@@ -77,7 +78,8 @@ static int tpa6130a2_i2c_write(int reg, u8 value)
 	struct tpa6130a2_data *data;
 	int val = 0;
 
-	BUG_ON(tpa6130a2_client == NULL);
+	if (WARN_ON(!tpa6130a2_client))
+		return -EINVAL;
 	data = i2c_get_clientdata(tpa6130a2_client);
 
 	if (data->power_state) {
@@ -98,7 +100,8 @@ static u8 tpa6130a2_read(int reg)
 {
 	struct tpa6130a2_data *data;
 
-	BUG_ON(tpa6130a2_client == NULL);
+	if (WARN_ON(!tpa6130a2_client))
+		return 0;
 	data = i2c_get_clientdata(tpa6130a2_client);
 
 	return data->regs[reg];
@@ -109,7 +112,8 @@ static int tpa6130a2_initialize(void)
 	struct tpa6130a2_data *data;
 	int i, ret = 0;
 
-	BUG_ON(tpa6130a2_client == NULL);
+	if (WARN_ON(!tpa6130a2_client))
+		return -EINVAL;
 	data = i2c_get_clientdata(tpa6130a2_client);
 
 	for (i = 1; i < TPA6130A2_REG_VERSION; i++) {
@@ -127,7 +131,8 @@ static int tpa6130a2_power(u8 power)
 	u8	val;
 	int	ret = 0;
 
-	BUG_ON(tpa6130a2_client == NULL);
+	if (WARN_ON(!tpa6130a2_client))
+		return -EINVAL;
 	data = i2c_get_clientdata(tpa6130a2_client);
 
 	mutex_lock(&data->mutex);
@@ -193,7 +198,8 @@ static int tpa6130a2_get_volsw(struct snd_kcontrol *kcontrol,
 	unsigned int mask = (1 << fls(max)) - 1;
 	unsigned int invert = mc->invert;
 
-	BUG_ON(tpa6130a2_client == NULL);
+	if (WARN_ON(!tpa6130a2_client))
+		return -EINVAL;
 	data = i2c_get_clientdata(tpa6130a2_client);
 
 	mutex_lock(&data->mutex);
@@ -223,7 +229,8 @@ static int tpa6130a2_put_volsw(struct snd_kcontrol *kcontrol,
 	unsigned int val = (ucontrol->value.integer.value[0] & mask);
 	unsigned int val_reg;
 
-	BUG_ON(tpa6130a2_client == NULL);
+	if (WARN_ON(!tpa6130a2_client))
+		return -EINVAL;
 	data = i2c_get_clientdata(tpa6130a2_client);
 
 	if (invert)
-- 
cgit 


From f5b3a563943f415b99823be9918119f07337e328 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 18:39:52 +0100
Subject: ASoC: wm0010: Use WARN_ON() instead of BUG_ON()

Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm0010.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wm0010.c b/sound/soc/codecs/wm0010.c
index d5ebcb00019b..aea916431227 100644
--- a/sound/soc/codecs/wm0010.c
+++ b/sound/soc/codecs/wm0010.c
@@ -372,7 +372,8 @@ static int wm0010_firmware_load(const char *name, struct snd_soc_codec *codec)
 	offset = 0;
 	dsp = inforec->dsp_target;
 	wm0010->boot_failed = false;
-	BUG_ON(!list_empty(&xfer_list));
+	if (WARN_ON(!list_empty(&xfer_list)))
+		return -EINVAL;
 	init_completion(&done);
 
 	/* First record should be INFO */
-- 
cgit 


From bf90e895b51f61722681c1ee6e99113cbeba7d13 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 18:39:53 +0100
Subject: ASoC: wm2000: Use WARN_ON() instead of BUG_ON()

Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm2000.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/sound/soc/codecs/wm2000.c b/sound/soc/codecs/wm2000.c
index 7fefd766b582..8ae50274ea8f 100644
--- a/sound/soc/codecs/wm2000.c
+++ b/sound/soc/codecs/wm2000.c
@@ -137,7 +137,8 @@ static int wm2000_power_up(struct i2c_client *i2c, int analogue)
 	unsigned long rate;
 	int ret;
 
-	BUG_ON(wm2000->anc_mode != ANC_OFF);
+	if (WARN_ON(wm2000->anc_mode != ANC_OFF))
+		return -EINVAL;
 
 	dev_dbg(&i2c->dev, "Beginning power up\n");
 
@@ -277,7 +278,8 @@ static int wm2000_enter_bypass(struct i2c_client *i2c, int analogue)
 {
 	struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev);
 
-	BUG_ON(wm2000->anc_mode != ANC_ACTIVE);
+	if (WARN_ON(wm2000->anc_mode != ANC_ACTIVE))
+		return -EINVAL;
 
 	if (analogue) {
 		wm2000_write(i2c, WM2000_REG_SYS_MODE_CNTRL,
@@ -315,7 +317,8 @@ static int wm2000_exit_bypass(struct i2c_client *i2c, int analogue)
 {
 	struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev);
 
-	BUG_ON(wm2000->anc_mode != ANC_BYPASS);
+	if (WARN_ON(wm2000->anc_mode != ANC_BYPASS))
+		return -EINVAL;
 	
 	wm2000_write(i2c, WM2000_REG_SYS_CTL1, 0);
 
@@ -349,7 +352,8 @@ static int wm2000_enter_standby(struct i2c_client *i2c, int analogue)
 {
 	struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev);
 
-	BUG_ON(wm2000->anc_mode != ANC_ACTIVE);
+	if (WARN_ON(wm2000->anc_mode != ANC_ACTIVE))
+		return -EINVAL;
 
 	if (analogue) {
 		wm2000_write(i2c, WM2000_REG_ANA_VMID_PD_TIME, 248 / 4);
@@ -392,7 +396,8 @@ static int wm2000_exit_standby(struct i2c_client *i2c, int analogue)
 {
 	struct wm2000_priv *wm2000 = dev_get_drvdata(&i2c->dev);
 
-	BUG_ON(wm2000->anc_mode != ANC_STANDBY);
+	if (WARN_ON(wm2000->anc_mode != ANC_STANDBY))
+		return -EINVAL;
 
 	wm2000_write(i2c, WM2000_REG_SYS_CTL1, 0);
 
-- 
cgit 


From 4a9e0f919c44fad6a2c591c6aed519ca3247515b Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 18:39:54 +0100
Subject: ASoC: wm8580: Use WARN() instead of BUG_ON()

Use WARN() instead.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm8580.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wm8580.c b/sound/soc/codecs/wm8580.c
index 5e9c40fa7eb2..08a414b57b1e 100644
--- a/sound/soc/codecs/wm8580.c
+++ b/sound/soc/codecs/wm8580.c
@@ -736,7 +736,7 @@ static int wm8580_set_sysclk(struct snd_soc_dai *dai, int clk_id,
 		break;
 
 	default:
-		BUG_ON("Unknown DAI driver ID\n");
+		WARN(1, "Unknown DAI driver ID\n");
 		return -EINVAL;
 	}
 
-- 
cgit 


From 95ff71e9383fdb6efca11455b8e495af034b7ce9 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 18:39:55 +0100
Subject: ASoC: wm5100: Use WARN_ON() instead of BUG_ON()

Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm5100.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wm5100.c b/sound/soc/codecs/wm5100.c
index ac1745d030d6..4cf91deabc02 100644
--- a/sound/soc/codecs/wm5100.c
+++ b/sound/soc/codecs/wm5100.c
@@ -1972,7 +1972,8 @@ static void wm5100_set_detect_mode(struct wm5100_priv *wm5100, int the_mode)
 {
 	struct wm5100_jack_mode *mode = &wm5100->pdata.jack_modes[the_mode];
 
-	BUG_ON(the_mode >= ARRAY_SIZE(wm5100->pdata.jack_modes));
+	if (WARN_ON(the_mode >= ARRAY_SIZE(wm5100->pdata.jack_modes)))
+		return;
 
 	gpio_set_value_cansleep(wm5100->pdata.hp_pol, mode->hp_pol);
 	regmap_update_bits(wm5100->regmap, WM5100_ACCESSORY_DETECT_MODE_1,
-- 
cgit 


From 22a7038c3950a7a4c4d1656a04c3ca8da8296324 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 18:39:56 +0100
Subject: ASoC: wm8776: Use WARN_ON() instead of BUG_ON()

Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm8776.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wm8776.c b/sound/soc/codecs/wm8776.c
index f31017ed1381..942d58e455f3 100644
--- a/sound/soc/codecs/wm8776.c
+++ b/sound/soc/codecs/wm8776.c
@@ -325,7 +325,8 @@ static int wm8776_set_sysclk(struct snd_soc_dai *dai,
 	struct snd_soc_codec *codec = dai->codec;
 	struct wm8776_priv *wm8776 = snd_soc_codec_get_drvdata(codec);
 
-	BUG_ON(dai->driver->id >= ARRAY_SIZE(wm8776->sysclk));
+	if (WARN_ON(dai->driver->id >= ARRAY_SIZE(wm8776->sysclk)))
+		return -EINVAL;
 
 	wm8776->sysclk[dai->driver->id] = freq;
 
-- 
cgit 


From 246e884b82305c5669a892c04e67864f4e7c10d5 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 18:39:57 +0100
Subject: ASoC: wm8900: Use WARN_ON() instead of BUG_ON()

Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm8900.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/sound/soc/codecs/wm8900.c b/sound/soc/codecs/wm8900.c
index 7c8257c5a17b..de67e74dca0c 100644
--- a/sound/soc/codecs/wm8900.c
+++ b/sound/soc/codecs/wm8900.c
@@ -691,7 +691,8 @@ static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
 	unsigned int K, Ndiv, Nmod, target;
 	unsigned int div;
 
-	BUG_ON(!Fout);
+	if (WARN_ON(!Fout))
+		return -EINVAL;
 
 	/* The FLL must run at 90-100MHz which is then scaled down to
 	 * the output value by FLLCLK_DIV. */
@@ -742,8 +743,9 @@ static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
 	/* Move down to proper range now rounding is done */
 	fll_div->k = K / 10;
 
-	BUG_ON(target != Fout * (fll_div->fllclk_div << 2));
-	BUG_ON(!K && target != Fref * fll_div->fll_ratio * fll_div->n);
+	if (WARN_ON(target != Fout * (fll_div->fllclk_div << 2)) ||
+	    WARN_ON(!K && target != Fref * fll_div->fll_ratio * fll_div->n))
+		return -EINVAL;
 
 	return 0;
 }
-- 
cgit 


From 4c8d620ac9e3aea0a0c2edf36851b59b44bd12f2 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 18:39:58 +0100
Subject: ASoC: wm8904: Use WARN_ON() instead of BUG_ON()

Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm8904.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c
index 4dfa8dceeabf..c173ab3cd18a 100644
--- a/sound/soc/codecs/wm8904.c
+++ b/sound/soc/codecs/wm8904.c
@@ -658,7 +658,8 @@ SOC_SINGLE_TLV("EQ5 Volume", WM8904_EQ6, 0, 24, 0, eq_tlv),
 static int cp_event(struct snd_soc_dapm_widget *w,
 		    struct snd_kcontrol *kcontrol, int event)
 {
-	BUG_ON(event != SND_SOC_DAPM_POST_PMU);
+	if (WARN_ON(event != SND_SOC_DAPM_POST_PMU))
+		return -EINVAL;
 
 	/* Maximum startup time */
 	udelay(500);
-- 
cgit 


From fb2e3e70193f6757e536dfdecf21be2e6ee308d4 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 18:39:59 +0100
Subject: ASoC: wm9713: Use WARN_ON() instead of BUG_ON()

Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm9713.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wm9713.c b/sound/soc/codecs/wm9713.c
index a53e175c015a..acea8927905b 100644
--- a/sound/soc/codecs/wm9713.c
+++ b/sound/soc/codecs/wm9713.c
@@ -221,7 +221,8 @@ static int wm9713_voice_shutdown(struct snd_soc_dapm_widget *w,
 	struct snd_soc_codec *codec = w->codec;
 	u16 status, rate;
 
-	BUG_ON(event != SND_SOC_DAPM_PRE_PMD);
+	if (WARN_ON(event != SND_SOC_DAPM_PRE_PMD))
+		return -EINVAL;
 
 	/* Gracefully shut down the voice interface. */
 	status = ac97_read(codec, AC97_EXTENDED_MID) | 0x1000;
-- 
cgit 


From 95281171a713f4d32f1a044b937563ec7776ccfe Mon Sep 17 00:00:00 2001
From: James Hogan <james.hogan@imgtec.com>
Date: Tue, 5 Nov 2013 14:42:03 +0000
Subject: metag: handle low level kicks directly

Kick interrupts trigger the LWK (low level kick) signal, usually handled
by the __TBIDoStdLWK() function which is the only handler inherited from
the bootloader. The LWK signal is converted either to a SWK (plain
software kick) or a SWS (software kick with an attached message).

Linux has kick_handler() to handle SWK and call registered kick handlers
(IPIs and inter-thread comms), but SWS is as far as I'm aware unused
with Linux.

Therefore remove that abstraction and have Linux handle LWK directly.
This will reduce kick latency slightly, and reduce our dependence on the
bootloader, which makes it easier to directly boot a kernel in QEMU
(particularly for SMP).

Signed-off-by: James Hogan <james.hogan@imgtec.com>
---
 arch/metag/include/asm/tbx.h | 19 +++++++------------
 arch/metag/kernel/setup.c    |  6 +-----
 arch/metag/kernel/traps.c    |  5 ++---
 arch/metag/tbx/tbidefr.S     |  2 +-
 4 files changed, 11 insertions(+), 21 deletions(-)

diff --git a/arch/metag/include/asm/tbx.h b/arch/metag/include/asm/tbx.h
index 287b36ff8ad1..703b9cb0ac5c 100644
--- a/arch/metag/include/asm/tbx.h
+++ b/arch/metag/include/asm/tbx.h
@@ -150,11 +150,9 @@
 #else
 /* Reserved 0x04-0x09 */
 #endif
-#define TBID_SIGNUM_SWS     0x0A /* KICK received with SigMask != 0 */
-#define TBID_SIGNUM_SWK     0x0B /* KICK received with SigMask == 0 */
-/* Reserved 0x0C-0x0F */
+/* Reserved 0x0A-0x0F */
 #define TBID_SIGNUM_TRT     0x10 /* Timer trigger */
-#define TBID_SIGNUM_LWK     0x11 /* Low level kick (handler provided by TBI) */
+#define TBID_SIGNUM_LWK     0x11 /* Low level kick */
 #define TBID_SIGNUM_XXF     0x12 /* Fault handler - receives ALL _xxF sigs */
 #ifdef TBI_1_4
 #define TBID_SIGNUM_DFR     0x13 /* Deferred Exception handler */
@@ -183,8 +181,7 @@
    each hardware signal, sometimes this is a many-to-one relationship. */
 #define TBI_TRIG_BIT(SigNum)                                      (\
     ((SigNum) >= TBID_SIGNUM_TRT) ? 1<<((SigNum)-TBID_SIGNUM_TRT) :\
-    ( ((SigNum) == TBID_SIGNUM_SWS) ||                             \
-      ((SigNum) == TBID_SIGNUM_SWK)    ) ?                         \
+    ((SigNum) == TBID_SIGNUM_LWK) ?                                \
                          TXSTAT_KICK_BIT : TXSTATI_BGNDHALT_BIT    )
 
 /* Return the hardware trigger vector number for entries in the
@@ -687,10 +684,8 @@ typedef union _tbires_tag_ {
    Triggers will indicate the status of TXSTAT or TXSTATI sampled by the
           code that called the handler.
           
-   InstOrSWSId is defined firstly as 'Inst' if the SigNum is TBID_SIGNUM_SWx
-          and hold the actual SWITCH instruction detected, secondly if SigNum
-          is TBID_SIGNUM_SWS the 'SWSId' is defined to hold the Id of the
-          software signal detected, in other cases the value of this
+   Inst is defined as 'Inst' if the SigNum is TBID_SIGNUM_SWx and holds the
+          actual SWITCH instruction detected, in other cases the value of this
           parameter is undefined.
    
    pTBI   points at the PTBI structure related to the thread and processing
@@ -709,7 +704,7 @@ typedef union _tbires_tag_ {
 
  */
 typedef TBIRES (*PTBIAPIFN)( TBIRES State, int SigNum,
-                             int Triggers, int InstOrSWSId,
+                             int Triggers, int Inst,
                              volatile struct _tbi_tag_ *pTBI );
 #endif /* ifndef __ASSEMBLY__ */
 
@@ -757,7 +752,7 @@ typedef volatile struct _tbi_tag_ {
 #ifndef __ASSEMBLY__
 /* This handler should be used for TBID_SIGNUM_DFR */
 extern TBIRES __TBIHandleDFR ( TBIRES State, int SigNum,
-                               int Triggers, int InstOrSWSId,
+                               int Triggers, int Inst,
                                volatile struct _tbi_tag_ *pTBI );
 #endif
 #endif
diff --git a/arch/metag/kernel/setup.c b/arch/metag/kernel/setup.c
index c396cd0b425f..e639bae09645 100644
--- a/arch/metag/kernel/setup.c
+++ b/arch/metag/kernel/setup.c
@@ -302,13 +302,9 @@ void __init setup_arch(char **cmdline_p)
 	 * rather than the version from the bootloader. This makes call
 	 * stacks easier to understand and may allow us to unmap the
 	 * bootloader at some point.
-	 *
-	 * We need to keep the LWK handler that TBI installed in order to
-	 * be able to do inter-thread comms.
 	 */
 	for (i = 0; i <= TBID_SIGNUM_MAX; i++)
-		if (i != TBID_SIGNUM_LWK)
-			_pTBI->fnSigs[i] = __TBIUnExpXXX;
+		_pTBI->fnSigs[i] = __TBIUnExpXXX;
 
 	/* A Meta requirement is that the kernel is loaded (virtually)
 	 * at the PAGE_OFFSET.
diff --git a/arch/metag/kernel/traps.c b/arch/metag/kernel/traps.c
index 25f9d1c2ffec..17b2e2e38d5a 100644
--- a/arch/metag/kernel/traps.c
+++ b/arch/metag/kernel/traps.c
@@ -819,8 +819,7 @@ void per_cpu_trap_init(unsigned long cpu)
 
 	set_trigger_mask(TBI_INTS_INIT(thread) | /* interrupts */
 			 TBI_TRIG_BIT(TBID_SIGNUM_LWK) | /* low level kick */
-			 TBI_TRIG_BIT(TBID_SIGNUM_SW1) |
-			 TBI_TRIG_BIT(TBID_SIGNUM_SWS));
+			 TBI_TRIG_BIT(TBID_SIGNUM_SW1));
 
 	/* non-priv - use current stack */
 	int_context.Sig.pCtx = NULL;
@@ -842,7 +841,7 @@ void __init trap_init(void)
 	_pTBI->fnSigs[TBID_SIGNUM_SW1] = switch1_handler;
 	_pTBI->fnSigs[TBID_SIGNUM_SW2] = switchx_handler;
 	_pTBI->fnSigs[TBID_SIGNUM_SW3] = switchx_handler;
-	_pTBI->fnSigs[TBID_SIGNUM_SWK] = kick_handler;
+	_pTBI->fnSigs[TBID_SIGNUM_LWK] = kick_handler;
 
 #ifdef CONFIG_METAG_META21
 	_pTBI->fnSigs[TBID_SIGNUM_DFR] = __TBIHandleDFR;
diff --git a/arch/metag/tbx/tbidefr.S b/arch/metag/tbx/tbidefr.S
index 3eb165ebf540..8f0902b22f70 100644
--- a/arch/metag/tbx/tbidefr.S
+++ b/arch/metag/tbx/tbidefr.S
@@ -20,7 +20,7 @@
 /* D1Ar1:D0Ar2 -- State
  * D0Ar3       -- SigNum
  * D0Ar4       -- Triggers
- * D1Ar5       -- InstOrSWSId
+ * D1Ar5       -- Inst
  * D0Ar6       -- pTBI (volatile)
  */
 ___TBIHandleDFR:
-- 
cgit 


From a2b4f8a473efd82d634117a057e0ba64443354cf Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Wed, 6 Nov 2013 00:06:45 -0800
Subject: ASoC: rcar: remove un-needed select from Kconfig

config RCAR_CLK_ADG is not exist

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/sh/Kconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sound/soc/sh/Kconfig b/sound/soc/sh/Kconfig
index 56d8ff6a402d..14011d90d70a 100644
--- a/sound/soc/sh/Kconfig
+++ b/sound/soc/sh/Kconfig
@@ -37,7 +37,6 @@ config SND_SOC_SH4_SIU
 config SND_SOC_RCAR
 	tristate "R-Car series SRU/SCU/SSIU/SSI support"
 	select SND_SIMPLE_CARD
-	select RCAR_CLK_ADG
 	help
 	  This option enables R-Car SUR/SCU/SSIU/SSI sound support
 
-- 
cgit 


From 8e35cd4ac9967620e03f027f27db18b2e249dcd7 Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Wed, 6 Nov 2013 11:20:01 +0100
Subject: ALSA: HDA - Limit mic boost and add mute LED for an HP machine

This machine has a mute LED as well as a noisy internal mic. Hence it needs
quirks for both limiting the mic boost as well as enabling the LED.

BugLink: https://bugs.launchpad.net/bugs/1248476
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index f19cd4fcb024..215db601267d 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3657,6 +3657,7 @@ enum {
 	ALC271_FIXUP_HP_GATE_MIC_JACK,
 	ALC269_FIXUP_ACER_AC700,
 	ALC269_FIXUP_LIMIT_INT_MIC_BOOST,
+	ALC269_FIXUP_LIMIT_INT_MIC_BOOST_MUTE_LED,
 	ALC269VB_FIXUP_ORDISSIMO_EVE2,
 	ALC283_FIXUP_CHROME_BOOK,
 	ALC282_FIXUP_ASUS_TX300,
@@ -3927,6 +3928,12 @@ static const struct hda_fixup alc269_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc269_fixup_limit_int_mic_boost,
 	},
+	[ALC269_FIXUP_LIMIT_INT_MIC_BOOST_MUTE_LED] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc269_fixup_limit_int_mic_boost,
+		.chained = true,
+		.chain_id = ALC269_FIXUP_HP_MUTE_LED_MIC1,
+	},
 	[ALC269VB_FIXUP_ORDISSIMO_EVE2] = {
 		.type = HDA_FIXUP_PINS,
 		.v.pins = (const struct hda_pintbl[]) {
@@ -4014,6 +4021,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x103c, 0x18e6, "HP", ALC269_FIXUP_HP_GPIO_LED),
 	SND_PCI_QUIRK(0x103c, 0x1973, "HP Pavilion", ALC269_FIXUP_HP_MUTE_LED_MIC1),
 	SND_PCI_QUIRK(0x103c, 0x1983, "HP Pavilion", ALC269_FIXUP_HP_MUTE_LED_MIC1),
+	SND_PCI_QUIRK(0x103c, 0x218b, "HP", ALC269_FIXUP_LIMIT_INT_MIC_BOOST_MUTE_LED),
 	SND_PCI_QUIRK(0x103c, 0x21ed, "HP Falco Chromebook", ALC283_FIXUP_CHROME_BOOK),
 	SND_PCI_QUIRK_VENDOR(0x103c, "HP", ALC269_FIXUP_HP_MUTE_LED),
 	SND_PCI_QUIRK(0x1043, 0x103f, "ASUS TX300", ALC282_FIXUP_ASUS_TX300),
-- 
cgit 


From 26c86da8821f7b64fced498674990318bc34c8de Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 31 Oct 2013 10:19:59 +0100
Subject: perf: Simplify the ring-buffer code

By using CIRC_SPACE() we can obviate the need for perf_output_space().

Shrinks the size of perf_output_begin() by 17 bytes on
x86_64-defconfig.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Michael Neuling <mikey@neuling.org>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: james.hogan@imgtec.com
Cc: Vince Weaver <vince@deater.net>
Cc: Victor Kaplansky <VICTORK@il.ibm.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Anton Blanchard <anton@samba.org>
Link: http://lkml.kernel.org/n/tip-vtb0xb0llebmsdlfn1v5vtfj@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/events/ring_buffer.c | 37 ++++---------------------------------
 1 file changed, 4 insertions(+), 33 deletions(-)

diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c
index 9c2ddfbf4525..6929c5848d4f 100644
--- a/kernel/events/ring_buffer.c
+++ b/kernel/events/ring_buffer.c
@@ -12,40 +12,10 @@
 #include <linux/perf_event.h>
 #include <linux/vmalloc.h>
 #include <linux/slab.h>
+#include <linux/circ_buf.h>
 
 #include "internal.h"
 
-static bool perf_output_space(struct ring_buffer *rb, unsigned long tail,
-			      unsigned long offset, unsigned long head)
-{
-	unsigned long sz = perf_data_size(rb);
-	unsigned long mask = sz - 1;
-
-	/*
-	 * check if user-writable
-	 * overwrite : over-write its own tail
-	 * !overwrite: buffer possibly drops events.
-	 */
-	if (rb->overwrite)
-		return true;
-
-	/*
-	 * verify that payload is not bigger than buffer
-	 * otherwise masking logic may fail to detect
-	 * the "not enough space" condition
-	 */
-	if ((head - offset) > sz)
-		return false;
-
-	offset = (offset - tail) & mask;
-	head   = (head   - tail) & mask;
-
-	if ((int)(head - offset) < 0)
-		return false;
-
-	return true;
-}
-
 static void perf_output_wakeup(struct perf_output_handle *handle)
 {
 	atomic_set(&handle->rb->poll, POLL_IN);
@@ -181,9 +151,10 @@ int perf_output_begin(struct perf_output_handle *handle,
 		tail = ACCESS_ONCE(rb->user_page->data_tail);
 		smp_mb();
 		offset = head = local_read(&rb->head);
-		head += size;
-		if (unlikely(!perf_output_space(rb, tail, offset, head)))
+		if (!rb->overwrite &&
+		    unlikely(CIRC_SPACE(head, tail, perf_data_size(rb)) < size))
 			goto fail;
+		head += size;
 	} while (local_cmpxchg(&rb->head, offset, head) != offset);
 
 	if (head - local_read(&rb->wakeup) > rb->watermark)
-- 
cgit 


From c72b42a3dde487132da80202756c101b371b2add Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 31 Oct 2013 17:20:25 +0100
Subject: perf: Add unlikely() to the ring-buffer code

Add unlikely() annotations to 'slow' paths:

When having a sampling event but no output buffer; you have bigger
issues -- also the bail is still faster than actually doing the work.

When having a sampling event but a control page only buffer, you have
bigger issues -- again the bail is still faster than actually doing
work.

Optimize for the case where you're not loosing events -- again, not
doing the work is still faster but make sure that when you have to
actually do work its as fast as possible.

The typical watermark is 1/2 the buffer size, so most events will not
take this path.

Shrinks perf_output_begin() by 16 bytes on x86_64-defconfig.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Michael Neuling <mikey@neuling.org>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: james.hogan@imgtec.com
Cc: Vince Weaver <vince@deater.net>
Cc: Victor Kaplansky <VICTORK@il.ibm.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Anton Blanchard <anton@samba.org>
Link: http://lkml.kernel.org/n/tip-wlg3jew3qnutm8opd0hyeuwn@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/events/ring_buffer.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c
index 6929c5848d4f..383cde476176 100644
--- a/kernel/events/ring_buffer.c
+++ b/kernel/events/ring_buffer.c
@@ -121,17 +121,17 @@ int perf_output_begin(struct perf_output_handle *handle,
 		event = event->parent;
 
 	rb = rcu_dereference(event->rb);
-	if (!rb)
+	if (unlikely(!rb))
 		goto out;
 
-	handle->rb	= rb;
-	handle->event	= event;
-
-	if (!rb->nr_pages)
+	if (unlikely(!rb->nr_pages))
 		goto out;
 
+	handle->rb    = rb;
+	handle->event = event;
+
 	have_lost = local_read(&rb->lost);
-	if (have_lost) {
+	if (unlikely(have_lost)) {
 		lost_event.header.size = sizeof(lost_event);
 		perf_event_header__init_id(&lost_event.header, &sample_data,
 					   event);
@@ -157,7 +157,7 @@ int perf_output_begin(struct perf_output_handle *handle,
 		head += size;
 	} while (local_cmpxchg(&rb->head, offset, head) != offset);
 
-	if (head - local_read(&rb->wakeup) > rb->watermark)
+	if (unlikely(head - local_read(&rb->wakeup) > rb->watermark))
 		local_add(rb->watermark, &rb->wakeup);
 
 	handle->page = offset >> (PAGE_SHIFT + page_order(rb));
@@ -167,7 +167,7 @@ int perf_output_begin(struct perf_output_handle *handle,
 	handle->addr += handle->size;
 	handle->size = (PAGE_SIZE << page_order(rb)) - handle->size;
 
-	if (have_lost) {
+	if (unlikely(have_lost)) {
 		lost_event.header.type = PERF_RECORD_LOST;
 		lost_event.header.misc = 0;
 		lost_event.id          = event->id;
-- 
cgit 


From 85f59edf9684603026c64c902791748116d29478 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 31 Oct 2013 17:25:38 +0100
Subject: perf: Optimize perf_output_begin()

There's no point in re-doing the memory-barrier when we fail the
cmpxchg(). Also placing it after the space reservation loop makes it
clearer it only separates the userpage->tail read from the data
stores.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Michael Neuling <mikey@neuling.org>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: james.hogan@imgtec.com
Cc: Vince Weaver <vince@deater.net>
Cc: Victor Kaplansky <VICTORK@il.ibm.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Anton Blanchard <anton@samba.org>
Link: http://lkml.kernel.org/n/tip-c19u6egfldyx86tpyc3zgkw9@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/events/ring_buffer.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c
index 383cde476176..6ed16ecfd0a3 100644
--- a/kernel/events/ring_buffer.c
+++ b/kernel/events/ring_buffer.c
@@ -141,15 +141,7 @@ int perf_output_begin(struct perf_output_handle *handle,
 	perf_output_get_handle(handle);
 
 	do {
-		/*
-		 * Userspace could choose to issue a mb() before updating the
-		 * tail pointer. So that all reads will be completed before the
-		 * write is issued.
-		 *
-		 * See perf_output_put_handle().
-		 */
 		tail = ACCESS_ONCE(rb->user_page->data_tail);
-		smp_mb();
 		offset = head = local_read(&rb->head);
 		if (!rb->overwrite &&
 		    unlikely(CIRC_SPACE(head, tail, perf_data_size(rb)) < size))
@@ -157,6 +149,15 @@ int perf_output_begin(struct perf_output_handle *handle,
 		head += size;
 	} while (local_cmpxchg(&rb->head, offset, head) != offset);
 
+	/*
+	 * Separate the userpage->tail read from the data stores below.
+	 * Matches the MB userspace SHOULD issue after reading the data
+	 * and before storing the new tail position.
+	 *
+	 * See perf_output_put_handle().
+	 */
+	smp_mb();
+
 	if (unlikely(head - local_read(&rb->wakeup) > rb->watermark))
 		local_add(rb->watermark, &rb->wakeup);
 
-- 
cgit 


From d20a973f46ed83e0d7d24f6c512064133038e193 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 31 Oct 2013 17:29:29 +0100
Subject: perf: Optimize perf_output_begin() -- lost_event case

Avoid touching the lost_event and sample_data cachelines twince. Its
not like we end up doing less work, but it might help to keep all
accesses to these cachelines in one place.

Due to code shuffle, this looses 4 bytes on x86_64-defconfig.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Michael Neuling <mikey@neuling.org>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: james.hogan@imgtec.com
Cc: Vince Weaver <vince@deater.net>
Cc: Victor Kaplansky <VICTORK@il.ibm.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Anton Blanchard <anton@samba.org>
Link: http://lkml.kernel.org/n/tip-zfxnc58qxj0eawdoj31hhupv@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/events/ring_buffer.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c
index 6ed16ecfd0a3..e4d70f33792f 100644
--- a/kernel/events/ring_buffer.c
+++ b/kernel/events/ring_buffer.c
@@ -106,7 +106,6 @@ int perf_output_begin(struct perf_output_handle *handle,
 	struct ring_buffer *rb;
 	unsigned long tail, offset, head;
 	int have_lost;
-	struct perf_sample_data sample_data;
 	struct {
 		struct perf_event_header header;
 		u64			 id;
@@ -132,10 +131,9 @@ int perf_output_begin(struct perf_output_handle *handle,
 
 	have_lost = local_read(&rb->lost);
 	if (unlikely(have_lost)) {
-		lost_event.header.size = sizeof(lost_event);
-		perf_event_header__init_id(&lost_event.header, &sample_data,
-					   event);
-		size += lost_event.header.size;
+		size += sizeof(lost_event);
+		if (event->attr.sample_id_all)
+			size += event->id_header_size;
 	}
 
 	perf_output_get_handle(handle);
@@ -169,11 +167,16 @@ int perf_output_begin(struct perf_output_handle *handle,
 	handle->size = (PAGE_SIZE << page_order(rb)) - handle->size;
 
 	if (unlikely(have_lost)) {
+		struct perf_sample_data sample_data;
+
+		lost_event.header.size = sizeof(lost_event);
 		lost_event.header.type = PERF_RECORD_LOST;
 		lost_event.header.misc = 0;
 		lost_event.id          = event->id;
 		lost_event.lost        = local_xchg(&rb->lost, 0);
 
+		perf_event_header__init_id(&lost_event.header,
+					   &sample_data, event);
 		perf_output_put(handle, lost_event);
 		perf_event__output_id_sample(event, handle, &sample_data);
 	}
-- 
cgit 


From 524feca5e9da9e5f9e5aa5d5613b1d762db9509e Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 31 Oct 2013 17:36:25 +0100
Subject: perf: Optimize perf_output_begin() -- address calculation

Rewrite the handle address calculation code to be clearer.

Saves 8 bytes on x86_64-defconfig.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Michael Neuling <mikey@neuling.org>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: james.hogan@imgtec.com
Cc: Vince Weaver <vince@deater.net>
Cc: Victor Kaplansky <VICTORK@il.ibm.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Anton Blanchard <anton@samba.org>
Link: http://lkml.kernel.org/n/tip-3trb2n2henb9m27tncef3ag7@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/events/ring_buffer.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c
index e4d70f33792f..c52a32fa5592 100644
--- a/kernel/events/ring_buffer.c
+++ b/kernel/events/ring_buffer.c
@@ -105,7 +105,7 @@ int perf_output_begin(struct perf_output_handle *handle,
 {
 	struct ring_buffer *rb;
 	unsigned long tail, offset, head;
-	int have_lost;
+	int have_lost, page_shift;
 	struct {
 		struct perf_event_header header;
 		u64			 id;
@@ -159,12 +159,12 @@ int perf_output_begin(struct perf_output_handle *handle,
 	if (unlikely(head - local_read(&rb->wakeup) > rb->watermark))
 		local_add(rb->watermark, &rb->wakeup);
 
-	handle->page = offset >> (PAGE_SHIFT + page_order(rb));
-	handle->page &= rb->nr_pages - 1;
-	handle->size = offset & ((PAGE_SIZE << page_order(rb)) - 1);
-	handle->addr = rb->data_pages[handle->page];
-	handle->addr += handle->size;
-	handle->size = (PAGE_SIZE << page_order(rb)) - handle->size;
+	page_shift = PAGE_SHIFT + page_order(rb);
+
+	handle->page = (offset >> page_shift) & (rb->nr_pages - 1);
+	offset &= (1UL << page_shift) - 1;
+	handle->addr = rb->data_pages[handle->page] + offset;
+	handle->size = (1UL << page_shift) - offset;
 
 	if (unlikely(have_lost)) {
 		struct perf_sample_data sample_data;
-- 
cgit 


From 394570b7939e1262f39373866166d8ee0a506e88 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 31 Oct 2013 17:41:23 +0100
Subject: perf: Update a stale comment

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Michael Neuling <mikey@neuling.org>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: james.hogan@imgtec.com
Cc: Vince Weaver <vince@deater.net>
Cc: Victor Kaplansky <VICTORK@il.ibm.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Anton Blanchard <anton@samba.org>
Link: http://lkml.kernel.org/n/tip-9s5mze78gmlz19agt39i8rii@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/events/ring_buffer.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/events/ring_buffer.c b/kernel/events/ring_buffer.c
index c52a32fa5592..e8b168af135b 100644
--- a/kernel/events/ring_buffer.c
+++ b/kernel/events/ring_buffer.c
@@ -85,8 +85,8 @@ again:
 	rb->user_page->data_head = head;
 
 	/*
-	 * Now check if we missed an update, rely on the (compiler)
-	 * barrier in atomic_dec_and_test() to re-read rb->head.
+	 * Now check if we missed an update -- rely on previous implied
+	 * compiler barriers to force a re-read.
 	 */
 	if (unlikely(head != local_read(&rb->head))) {
 		local_inc(&rb->nest);
-- 
cgit 


From 0a196848ca365ec582c6d86659be456be6d4ed96 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 30 Oct 2013 21:16:22 +0100
Subject: perf: Fix arch_perf_out_copy_user default

The arch_perf_output_copy_user() default of
__copy_from_user_inatomic() returns bytes not copied, while all other
argument functions given DEFINE_OUTPUT_COPY() return bytes copied.

Since copy_from_user_nmi() is the odd duck out by returning bytes
copied where all other *copy_{to,from}* functions return bytes not
copied, change it over and ammend DEFINE_OUTPUT_COPY() to expect bytes
not copied.

Oddly enough DEFINE_OUTPUT_COPY() already returned bytes not copied
while expecting its worker functions to return bytes copied.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: will.deacon@arm.com
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/20131030201622.GR16117@laptop.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/cpu/perf_event.c           |  4 ++--
 arch/x86/kernel/cpu/perf_event_intel_ds.c  |  2 +-
 arch/x86/kernel/cpu/perf_event_intel_lbr.c |  2 +-
 arch/x86/lib/usercopy.c                    |  2 +-
 arch/x86/oprofile/backtrace.c              |  4 ++--
 kernel/events/internal.h                   | 35 ++++++++++++++++++++++--------
 6 files changed, 33 insertions(+), 16 deletions(-)

diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c
index 8a87a3224121..8e132931614d 100644
--- a/arch/x86/kernel/cpu/perf_event.c
+++ b/arch/x86/kernel/cpu/perf_event.c
@@ -1989,7 +1989,7 @@ perf_callchain_user32(struct pt_regs *regs, struct perf_callchain_entry *entry)
 		frame.return_address = 0;
 
 		bytes = copy_from_user_nmi(&frame, fp, sizeof(frame));
-		if (bytes != sizeof(frame))
+		if (bytes != 0)
 			break;
 
 		if (!valid_user_frame(fp, sizeof(frame)))
@@ -2041,7 +2041,7 @@ perf_callchain_user(struct perf_callchain_entry *entry, struct pt_regs *regs)
 		frame.return_address = 0;
 
 		bytes = copy_from_user_nmi(&frame, fp, sizeof(frame));
-		if (bytes != sizeof(frame))
+		if (bytes != 0)
 			break;
 
 		if (!valid_user_frame(fp, sizeof(frame)))
diff --git a/arch/x86/kernel/cpu/perf_event_intel_ds.c b/arch/x86/kernel/cpu/perf_event_intel_ds.c
index c1760ff3c757..ae96cfa5eddd 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_ds.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_ds.c
@@ -789,7 +789,7 @@ static int intel_pmu_pebs_fixup_ip(struct pt_regs *regs)
 
 		size = ip - to; /* Must fit our buffer, see above */
 		bytes = copy_from_user_nmi(buf, (void __user *)to, size);
-		if (bytes != size)
+		if (bytes != 0)
 			return 0;
 
 		kaddr = buf;
diff --git a/arch/x86/kernel/cpu/perf_event_intel_lbr.c b/arch/x86/kernel/cpu/perf_event_intel_lbr.c
index 90ee6c1d0542..d82d155aca8c 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_lbr.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_lbr.c
@@ -491,7 +491,7 @@ static int branch_type(unsigned long from, unsigned long to, int abort)
 
 		/* may fail if text not present */
 		bytes = copy_from_user_nmi(buf, (void __user *)from, size);
-		if (bytes != size)
+		if (bytes != 0)
 			return X86_BR_NONE;
 
 		addr = buf;
diff --git a/arch/x86/lib/usercopy.c b/arch/x86/lib/usercopy.c
index 5465b8613944..ddf9ecb53cc3 100644
--- a/arch/x86/lib/usercopy.c
+++ b/arch/x86/lib/usercopy.c
@@ -31,6 +31,6 @@ copy_from_user_nmi(void *to, const void __user *from, unsigned long n)
 	ret = __copy_from_user_inatomic(to, from, n);
 	pagefault_enable();
 
-	return n - ret;
+	return ret;
 }
 EXPORT_SYMBOL_GPL(copy_from_user_nmi);
diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
index d6aa6e8315d1..5d04be5efb64 100644
--- a/arch/x86/oprofile/backtrace.c
+++ b/arch/x86/oprofile/backtrace.c
@@ -47,7 +47,7 @@ dump_user_backtrace_32(struct stack_frame_ia32 *head)
 	unsigned long bytes;
 
 	bytes = copy_from_user_nmi(bufhead, head, sizeof(bufhead));
-	if (bytes != sizeof(bufhead))
+	if (bytes != 0)
 		return NULL;
 
 	fp = (struct stack_frame_ia32 *) compat_ptr(bufhead[0].next_frame);
@@ -93,7 +93,7 @@ static struct stack_frame *dump_user_backtrace(struct stack_frame *head)
 	unsigned long bytes;
 
 	bytes = copy_from_user_nmi(bufhead, head, sizeof(bufhead));
-	if (bytes != sizeof(bufhead))
+	if (bytes != 0)
 		return NULL;
 
 	oprofile_add_trace(bufhead[0].return_address);
diff --git a/kernel/events/internal.h b/kernel/events/internal.h
index ca6599723be5..569b218782ad 100644
--- a/kernel/events/internal.h
+++ b/kernel/events/internal.h
@@ -82,16 +82,16 @@ static inline unsigned long perf_data_size(struct ring_buffer *rb)
 }
 
 #define DEFINE_OUTPUT_COPY(func_name, memcpy_func)			\
-static inline unsigned int						\
+static inline unsigned long						\
 func_name(struct perf_output_handle *handle,				\
-	  const void *buf, unsigned int len)				\
+	  const void *buf, unsigned long len)				\
 {									\
 	unsigned long size, written;					\
 									\
 	do {								\
-		size = min_t(unsigned long, handle->size, len);		\
-									\
+		size    = min(handle->size, len);			\
 		written = memcpy_func(handle->addr, buf, size);		\
+		written = size - written;				\
 									\
 		len -= written;						\
 		handle->addr += written;				\
@@ -110,20 +110,37 @@ func_name(struct perf_output_handle *handle,				\
 	return len;							\
 }
 
-static inline int memcpy_common(void *dst, const void *src, size_t n)
+static inline unsigned long
+memcpy_common(void *dst, const void *src, unsigned long n)
 {
 	memcpy(dst, src, n);
-	return n;
+	return 0;
 }
 
 DEFINE_OUTPUT_COPY(__output_copy, memcpy_common)
 
-#define MEMCPY_SKIP(dst, src, n) (n)
+static inline unsigned long
+memcpy_skip(void *dst, const void *src, unsigned long n)
+{
+	return 0;
+}
 
-DEFINE_OUTPUT_COPY(__output_skip, MEMCPY_SKIP)
+DEFINE_OUTPUT_COPY(__output_skip, memcpy_skip)
 
 #ifndef arch_perf_out_copy_user
-#define arch_perf_out_copy_user __copy_from_user_inatomic
+#define arch_perf_out_copy_user arch_perf_out_copy_user
+
+static inline unsigned long
+arch_perf_out_copy_user(void *dst, const void *src, unsigned long n)
+{
+	unsigned long ret;
+
+	pagefault_disable();
+	ret = __copy_from_user_inatomic(dst, src, n);
+	pagefault_enable();
+
+	return ret;
+}
 #endif
 
 DEFINE_OUTPUT_COPY(__output_copy_user, arch_perf_out_copy_user)
-- 
cgit 


From a94d342b9cb09edfe888ea972af0883b6a8d992b Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 30 Oct 2013 11:42:46 +0100
Subject: tools/perf: Add required memory barriers

To match patch bf378d341e48 ("perf: Fix perf ring buffer memory
ordering") change userspace to also adhere to the ordering outlined.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Michael Neuling <mikey@neuling.org>
Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Cc: james.hogan@imgtec.com
Cc: Vince Weaver <vince@deater.net>
Cc: Victor Kaplansky <VICTORK@il.ibm.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Anton Blanchard <anton@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Michael Ellerman <michael@ellerman.id.au>
Link: http://lkml.kernel.org/r/20131030104246.GH16117@laptop.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/perf.h        | 59 ++++++++++++++++++++++++++++++++++++++----------
 tools/perf/tests/rdpmc.c |  2 --
 tools/perf/util/evlist.h |  4 ++--
 3 files changed, 49 insertions(+), 16 deletions(-)

diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index f61c230beec4..6a587e84fdfe 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -4,6 +4,8 @@
 #include <asm/unistd.h>
 
 #if defined(__i386__)
+#define mb()		asm volatile("lock; addl $0,0(%%esp)" ::: "memory")
+#define wmb()		asm volatile("lock; addl $0,0(%%esp)" ::: "memory")
 #define rmb()		asm volatile("lock; addl $0,0(%%esp)" ::: "memory")
 #define cpu_relax()	asm volatile("rep; nop" ::: "memory");
 #define CPUINFO_PROC	"model name"
@@ -13,6 +15,8 @@
 #endif
 
 #if defined(__x86_64__)
+#define mb()		asm volatile("mfence" ::: "memory")
+#define wmb()		asm volatile("sfence" ::: "memory")
 #define rmb()		asm volatile("lfence" ::: "memory")
 #define cpu_relax()	asm volatile("rep; nop" ::: "memory");
 #define CPUINFO_PROC	"model name"
@@ -23,45 +27,61 @@
 
 #ifdef __powerpc__
 #include "../../arch/powerpc/include/uapi/asm/unistd.h"
+#define mb()		asm volatile ("sync" ::: "memory")
+#define wmb()		asm volatile ("sync" ::: "memory")
 #define rmb()		asm volatile ("sync" ::: "memory")
-#define cpu_relax()	asm volatile ("" ::: "memory");
 #define CPUINFO_PROC	"cpu"
 #endif
 
 #ifdef __s390__
+#define mb()		asm volatile("bcr 15,0" ::: "memory")
+#define wmb()		asm volatile("bcr 15,0" ::: "memory")
 #define rmb()		asm volatile("bcr 15,0" ::: "memory")
-#define cpu_relax()	asm volatile("" ::: "memory");
 #endif
 
 #ifdef __sh__
 #if defined(__SH4A__) || defined(__SH5__)
+# define mb()		asm volatile("synco" ::: "memory")
+# define wmb()		asm volatile("synco" ::: "memory")
 # define rmb()		asm volatile("synco" ::: "memory")
 #else
+# define mb()		asm volatile("" ::: "memory")
+# define wmb()		asm volatile("" ::: "memory")
 # define rmb()		asm volatile("" ::: "memory")
 #endif
-#define cpu_relax()	asm volatile("" ::: "memory")
 #define CPUINFO_PROC	"cpu type"
 #endif
 
 #ifdef __hppa__
+#define mb()		asm volatile("" ::: "memory")
+#define wmb()		asm volatile("" ::: "memory")
 #define rmb()		asm volatile("" ::: "memory")
-#define cpu_relax()	asm volatile("" ::: "memory");
 #define CPUINFO_PROC	"cpu"
 #endif
 
 #ifdef __sparc__
+#ifdef __LP64__
+#define mb()		asm volatile("ba,pt %%xcc, 1f\n"	\
+				     "membar #StoreLoad\n"	\
+				     "1:\n":::"memory")
+#else
+#define mb()		asm volatile("":::"memory")
+#endif
+#define wmb()		asm volatile("":::"memory")
 #define rmb()		asm volatile("":::"memory")
-#define cpu_relax()	asm volatile("":::"memory")
 #define CPUINFO_PROC	"cpu"
 #endif
 
 #ifdef __alpha__
+#define mb()		asm volatile("mb" ::: "memory")
+#define wmb()		asm volatile("wmb" ::: "memory")
 #define rmb()		asm volatile("mb" ::: "memory")
-#define cpu_relax()	asm volatile("" ::: "memory")
 #define CPUINFO_PROC	"cpu model"
 #endif
 
 #ifdef __ia64__
+#define mb()		asm volatile ("mf" ::: "memory")
+#define wmb()		asm volatile ("mf" ::: "memory")
 #define rmb()		asm volatile ("mf" ::: "memory")
 #define cpu_relax()	asm volatile ("hint @pause" ::: "memory")
 #define CPUINFO_PROC	"model name"
@@ -72,40 +92,55 @@
  * Use the __kuser_memory_barrier helper in the CPU helper page. See
  * arch/arm/kernel/entry-armv.S in the kernel source for details.
  */
+#define mb()		((void(*)(void))0xffff0fa0)()
+#define wmb()		((void(*)(void))0xffff0fa0)()
 #define rmb()		((void(*)(void))0xffff0fa0)()
-#define cpu_relax()	asm volatile("":::"memory")
 #define CPUINFO_PROC	"Processor"
 #endif
 
 #ifdef __aarch64__
-#define rmb()		asm volatile("dmb ld" ::: "memory")
+#define mb()		asm volatile("dmb ish" ::: "memory")
+#define wmb()		asm volatile("dmb ishld" ::: "memory")
+#define rmb()		asm volatile("dmb ishst" ::: "memory")
 #define cpu_relax()	asm volatile("yield" ::: "memory")
 #endif
 
 #ifdef __mips__
-#define rmb()		asm volatile(					\
+#define mb()		asm volatile(					\
 				".set	mips2\n\t"			\
 				"sync\n\t"				\
 				".set	mips0"				\
 				: /* no output */			\
 				: /* no input */			\
 				: "memory")
-#define cpu_relax()	asm volatile("" ::: "memory")
+#define wmb()	mb()
+#define rmb()	mb()
 #define CPUINFO_PROC	"cpu model"
 #endif
 
 #ifdef __arc__
+#define mb()		asm volatile("" ::: "memory")
+#define wmb()		asm volatile("" ::: "memory")
 #define rmb()		asm volatile("" ::: "memory")
-#define cpu_relax()	rmb()
 #define CPUINFO_PROC	"Processor"
 #endif
 
 #ifdef __metag__
+#define mb()		asm volatile("" ::: "memory")
+#define wmb()		asm volatile("" ::: "memory")
 #define rmb()		asm volatile("" ::: "memory")
-#define cpu_relax()	asm volatile("" ::: "memory")
 #define CPUINFO_PROC	"CPU"
 #endif
 
+#define barrier() asm volatile ("" ::: "memory")
+
+#ifndef cpu_relax
+#define cpu_relax() barrier()
+#endif
+
+#define ACCESS_ONCE(x) (*(volatile typeof(x) *)&(x))
+
+
 #include <time.h>
 #include <unistd.h>
 #include <sys/types.h>
diff --git a/tools/perf/tests/rdpmc.c b/tools/perf/tests/rdpmc.c
index ff94886aad99..46649c25fa5e 100644
--- a/tools/perf/tests/rdpmc.c
+++ b/tools/perf/tests/rdpmc.c
@@ -9,8 +9,6 @@
 
 #if defined(__x86_64__) || defined(__i386__)
 
-#define barrier() asm volatile("" ::: "memory")
-
 static u64 rdpmc(unsigned int counter)
 {
 	unsigned int low, high;
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index e99eaed92682..ecaa582f40e2 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -177,7 +177,7 @@ int perf_evlist__strerror_open(struct perf_evlist *evlist, int err, char *buf, s
 static inline unsigned int perf_mmap__read_head(struct perf_mmap *mm)
 {
 	struct perf_event_mmap_page *pc = mm->base;
-	int head = pc->data_head;
+	int head = ACCESS_ONCE(pc->data_head);
 	rmb();
 	return head;
 }
@@ -190,7 +190,7 @@ static inline void perf_mmap__write_tail(struct perf_mmap *md,
 	/*
 	 * ensure all reads are done before we write the tail out.
 	 */
-	/* mb(); */
+	mb();
 	pc->data_tail = tail;
 }
 
-- 
cgit 


From c7e548b45ce85f765f6262149dd60d9956a31d60 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Thu, 17 Oct 2013 20:24:17 +0200
Subject: perf: Factor out strncpy() in perf_event_mmap_event()

While this is really minor, but strncpy() does the unnecessary
zero-padding till the end of tmp[16] and it is called every time
we are going to use the string literal.

Turn these strncpy()'s into the single strlcpy() under the new
label, saves 72 bytes.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131017182417.GA17753@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/events/core.c | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index 17b3c6cf1606..4dc078d18929 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5144,8 +5144,8 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event)
 
 		buf = kmalloc(PATH_MAX, GFP_KERNEL);
 		if (!buf) {
-			name = strncpy(tmp, "//enomem", sizeof(tmp));
-			goto got_name;
+			name = "//enomem";
+			goto cpy_name;
 		}
 		/*
 		 * d_path() works from the end of the rb backwards, so we
@@ -5154,8 +5154,8 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event)
 		 */
 		name = d_path(&file->f_path, buf, PATH_MAX - sizeof(u64));
 		if (IS_ERR(name)) {
-			name = strncpy(tmp, "//toolong", sizeof(tmp));
-			goto got_name;
+			name = "//toolong";
+			goto cpy_name;
 		}
 		inode = file_inode(vma->vm_file);
 		dev = inode->i_sb->s_dev;
@@ -5163,30 +5163,30 @@ static void perf_event_mmap_event(struct perf_mmap_event *mmap_event)
 		gen = inode->i_generation;
 		maj = MAJOR(dev);
 		min = MINOR(dev);
-
+		goto got_name;
 	} else {
 		name = (char *)arch_vma_name(vma);
-		if (name) {
-			name = strncpy(tmp, name, sizeof(tmp) - 1);
-			tmp[sizeof(tmp) - 1] = '\0';
-			goto got_name;
-		}
+		if (name)
+			goto cpy_name;
 
 		if (vma->vm_start <= vma->vm_mm->start_brk &&
 				vma->vm_end >= vma->vm_mm->brk) {
-			name = strncpy(tmp, "[heap]", sizeof(tmp));
-			goto got_name;
+			name = "[heap]";
+			goto cpy_name;
 		}
 		if (vma->vm_start <= vma->vm_mm->start_stack &&
 				vma->vm_end >= vma->vm_mm->start_stack) {
-			name = strncpy(tmp, "[stack]", sizeof(tmp));
-			goto got_name;
+			name = "[stack]";
+			goto cpy_name;
 		}
 
-		name = strncpy(tmp, "//anon", sizeof(tmp));
-		goto got_name;
+		name = "//anon";
+		goto cpy_name;
 	}
 
+cpy_name:
+	strlcpy(tmp, name, sizeof(tmp));
+	name = tmp;
 got_name:
 	/*
 	 * Since our buffer works in 8 byte units we need to align our string
-- 
cgit 


From d1e8f4a8365d16fd179cb8cad5b4d20aafd0a695 Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zheng.z.yan@intel.com>
Date: Thu, 31 Oct 2013 13:36:54 +0800
Subject: perf/x86/intel/uncore: Add filter support for IvyBridge-EP QPI boxes

The encoding for filter registers of IvyBridge-EP uncore QPI boxes is
completely the same as SandyBridge-EP.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: eranian@google.com
Cc: "Yan Zheng" <zheng.z.yan@intel.com>
Link: http://lkml.kernel.org/r/1383197815-17706-1-git-send-email-zheng.z.yan@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/cpu/perf_event_intel_uncore.c | 61 ++++++++++++++++++++++-----
 1 file changed, 51 insertions(+), 10 deletions(-)

diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
index 4118f9f68315..6da399943ac6 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -1099,6 +1099,24 @@ static struct attribute *ivt_uncore_qpi_formats_attr[] = {
 	&format_attr_umask.attr,
 	&format_attr_edge.attr,
 	&format_attr_thresh8.attr,
+	&format_attr_match_rds.attr,
+	&format_attr_match_rnid30.attr,
+	&format_attr_match_rnid4.attr,
+	&format_attr_match_dnid.attr,
+	&format_attr_match_mc.attr,
+	&format_attr_match_opc.attr,
+	&format_attr_match_vnw.attr,
+	&format_attr_match0.attr,
+	&format_attr_match1.attr,
+	&format_attr_mask_rds.attr,
+	&format_attr_mask_rnid30.attr,
+	&format_attr_mask_rnid4.attr,
+	&format_attr_mask_dnid.attr,
+	&format_attr_mask_mc.attr,
+	&format_attr_mask_opc.attr,
+	&format_attr_mask_vnw.attr,
+	&format_attr_mask0.attr,
+	&format_attr_mask1.attr,
 	NULL,
 };
 
@@ -1312,17 +1330,30 @@ static struct intel_uncore_type ivt_uncore_imc = {
 	IVT_UNCORE_PCI_COMMON_INIT(),
 };
 
+static struct intel_uncore_ops ivt_uncore_qpi_ops = {
+	.init_box	= ivt_uncore_pci_init_box,
+	.disable_box	= snbep_uncore_pci_disable_box,
+	.enable_box	= snbep_uncore_pci_enable_box,
+	.disable_event	= snbep_uncore_pci_disable_event,
+	.enable_event	= snbep_qpi_enable_event,
+	.read_counter	= snbep_uncore_pci_read_counter,
+	.hw_config	= snbep_qpi_hw_config,
+	.get_constraint	= uncore_get_constraint,
+	.put_constraint	= uncore_put_constraint,
+};
+
 static struct intel_uncore_type ivt_uncore_qpi = {
-	.name		= "qpi",
-	.num_counters   = 4,
-	.num_boxes	= 3,
-	.perf_ctr_bits	= 48,
-	.perf_ctr	= SNBEP_PCI_PMON_CTR0,
-	.event_ctl	= SNBEP_PCI_PMON_CTL0,
-	.event_mask	= IVT_QPI_PCI_PMON_RAW_EVENT_MASK,
-	.box_ctl	= SNBEP_PCI_PMON_BOX_CTL,
-	.ops		= &ivt_uncore_pci_ops,
-	.format_group	= &ivt_uncore_qpi_format_group,
+	.name			= "qpi",
+	.num_counters		= 4,
+	.num_boxes		= 3,
+	.perf_ctr_bits		= 48,
+	.perf_ctr		= SNBEP_PCI_PMON_CTR0,
+	.event_ctl		= SNBEP_PCI_PMON_CTL0,
+	.event_mask		= IVT_QPI_PCI_PMON_RAW_EVENT_MASK,
+	.box_ctl		= SNBEP_PCI_PMON_BOX_CTL,
+	.num_shared_regs	= 1,
+	.ops			= &ivt_uncore_qpi_ops,
+	.format_group		= &ivt_uncore_qpi_format_group,
 };
 
 static struct intel_uncore_type ivt_uncore_r2pcie = {
@@ -1429,6 +1460,16 @@ static DEFINE_PCI_DEVICE_TABLE(ivt_uncore_pci_ids) = {
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe3e),
 		.driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_R3QPI, 2),
 	},
+	{ /* QPI Port 0 filter  */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe86),
+		.driver_data = UNCORE_PCI_DEV_DATA(UNCORE_EXTRA_PCI_DEV,
+						   SNBEP_PCI_QPI_PORT0_FILTER),
+	},
+	{ /* QPI Port 0 filter  */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe96),
+		.driver_data = UNCORE_PCI_DEV_DATA(UNCORE_EXTRA_PCI_DEV,
+						   SNBEP_PCI_QPI_PORT1_FILTER),
+	},
 	{ /* end: all zeroes */ }
 };
 
-- 
cgit 


From f891d8cfb8372eb9cfe9d0d4ca61c75bafeaae37 Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zheng.z.yan@intel.com>
Date: Thu, 31 Oct 2013 13:36:55 +0800
Subject: perf/x86/intel: Add Ivy Bridge-EP uncore IRP box support

Unlike other uncore boxes, IRP boxes live in PCI buses with no UBOX
device. For PCI bus without UBOX device, we find the next bus that
has UBOX device and use its 'bus to socket' mapping.

Besides the counter/control registers in IRP boxes are not properly
aligned.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: eranian@google.com
Cc: "Yan Zheng" <zheng.z.yan@intel.com>
Link: http://lkml.kernel.org/r/1383197815-17706-2-git-send-email-zheng.z.yan@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/cpu/perf_event_intel_uncore.c | 73 +++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)

diff --git a/arch/x86/kernel/cpu/perf_event_intel_uncore.c b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
index 6da399943ac6..29c248799ced 100644
--- a/arch/x86/kernel/cpu/perf_event_intel_uncore.c
+++ b/arch/x86/kernel/cpu/perf_event_intel_uncore.c
@@ -997,6 +997,20 @@ static int snbep_pci2phy_map_init(int devid)
 		}
 	}
 
+	if (!err) {
+		/*
+		 * For PCI bus with no UBOX device, find the next bus
+		 * that has UBOX device and use its mapping.
+		 */
+		i = -1;
+		for (bus = 255; bus >= 0; bus--) {
+			if (pcibus_to_physid[bus] >= 0)
+				i = pcibus_to_physid[bus];
+			else
+				pcibus_to_physid[bus] = i;
+		}
+	}
+
 	if (ubox_dev)
 		pci_dev_put(ubox_dev);
 
@@ -1330,6 +1344,59 @@ static struct intel_uncore_type ivt_uncore_imc = {
 	IVT_UNCORE_PCI_COMMON_INIT(),
 };
 
+/* registers in IRP boxes are not properly aligned */
+static unsigned ivt_uncore_irp_ctls[] = {0xd8, 0xdc, 0xe0, 0xe4};
+static unsigned ivt_uncore_irp_ctrs[] = {0xa0, 0xb0, 0xb8, 0xc0};
+
+static void ivt_uncore_irp_enable_event(struct intel_uncore_box *box, struct perf_event *event)
+{
+	struct pci_dev *pdev = box->pci_dev;
+	struct hw_perf_event *hwc = &event->hw;
+
+	pci_write_config_dword(pdev, ivt_uncore_irp_ctls[hwc->idx],
+			       hwc->config | SNBEP_PMON_CTL_EN);
+}
+
+static void ivt_uncore_irp_disable_event(struct intel_uncore_box *box, struct perf_event *event)
+{
+	struct pci_dev *pdev = box->pci_dev;
+	struct hw_perf_event *hwc = &event->hw;
+
+	pci_write_config_dword(pdev, ivt_uncore_irp_ctls[hwc->idx], hwc->config);
+}
+
+static u64 ivt_uncore_irp_read_counter(struct intel_uncore_box *box, struct perf_event *event)
+{
+	struct pci_dev *pdev = box->pci_dev;
+	struct hw_perf_event *hwc = &event->hw;
+	u64 count = 0;
+
+	pci_read_config_dword(pdev, ivt_uncore_irp_ctrs[hwc->idx], (u32 *)&count);
+	pci_read_config_dword(pdev, ivt_uncore_irp_ctrs[hwc->idx] + 4, (u32 *)&count + 1);
+
+	return count;
+}
+
+static struct intel_uncore_ops ivt_uncore_irp_ops = {
+	.init_box	= ivt_uncore_pci_init_box,
+	.disable_box	= snbep_uncore_pci_disable_box,
+	.enable_box	= snbep_uncore_pci_enable_box,
+	.disable_event	= ivt_uncore_irp_disable_event,
+	.enable_event	= ivt_uncore_irp_enable_event,
+	.read_counter	= ivt_uncore_irp_read_counter,
+};
+
+static struct intel_uncore_type ivt_uncore_irp = {
+	.name			= "irp",
+	.num_counters		= 4,
+	.num_boxes		= 1,
+	.perf_ctr_bits		= 48,
+	.event_mask		= IVT_PMON_RAW_EVENT_MASK,
+	.box_ctl		= SNBEP_PCI_PMON_BOX_CTL,
+	.ops			= &ivt_uncore_irp_ops,
+	.format_group		= &ivt_uncore_format_group,
+};
+
 static struct intel_uncore_ops ivt_uncore_qpi_ops = {
 	.init_box	= ivt_uncore_pci_init_box,
 	.disable_box	= snbep_uncore_pci_disable_box,
@@ -1377,6 +1444,7 @@ static struct intel_uncore_type ivt_uncore_r3qpi = {
 enum {
 	IVT_PCI_UNCORE_HA,
 	IVT_PCI_UNCORE_IMC,
+	IVT_PCI_UNCORE_IRP,
 	IVT_PCI_UNCORE_QPI,
 	IVT_PCI_UNCORE_R2PCIE,
 	IVT_PCI_UNCORE_R3QPI,
@@ -1385,6 +1453,7 @@ enum {
 static struct intel_uncore_type *ivt_pci_uncores[] = {
 	[IVT_PCI_UNCORE_HA]	= &ivt_uncore_ha,
 	[IVT_PCI_UNCORE_IMC]	= &ivt_uncore_imc,
+	[IVT_PCI_UNCORE_IRP]	= &ivt_uncore_irp,
 	[IVT_PCI_UNCORE_QPI]	= &ivt_uncore_qpi,
 	[IVT_PCI_UNCORE_R2PCIE]	= &ivt_uncore_r2pcie,
 	[IVT_PCI_UNCORE_R3QPI]	= &ivt_uncore_r3qpi,
@@ -1432,6 +1501,10 @@ static DEFINE_PCI_DEVICE_TABLE(ivt_uncore_pci_ids) = {
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xef1),
 		.driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_IMC, 7),
 	},
+	{ /* IRP */
+		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe39),
+		.driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_IRP, 0),
+	},
 	{ /* QPI0 Port 0 */
 		PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xe32),
 		.driver_data = UNCORE_PCI_DEV_DATA(IVT_PCI_UNCORE_QPI, 0),
-- 
cgit 


From 2042abe7977222ef606306faa2dce8fd51e98e65 Mon Sep 17 00:00:00 2001
From: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Date: Wed, 30 Oct 2013 08:42:42 +0530
Subject: sched: Fix asymmetric scheduling for POWER7

Asymmetric scheduling within a core is a scheduler loadbalancing
feature that is triggered when SD_ASYM_PACKING flag is set.  The goal
for the load balancer is to move tasks to lower order idle SMT threads
within a core on a POWER7 system.

In nohz_kick_needed(), we intend to check if our sched domain (core)
is completely busy or we have idle cpu.

The following check for SD_ASYM_PACKING:

    (cpumask_first_and(nohz.idle_cpus_mask, sched_domain_span(sd)) < cpu)

already covers the case of checking if the domain has an idle cpu,
because cpumask_first_and() will not yield any set bits if this domain
has no idle cpu.

Hence, nr_busy check against group weight can be removed.

Reported-by: Michael Neuling <michael.neuling@au1.ibm.com>
Signed-off-by: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Signed-off-by: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Tested-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: vincent.guittot@linaro.org
Cc: bitbucket@online.de
Cc: benh@kernel.crashing.org
Cc: anton@samba.org
Cc: Morten.Rasmussen@arm.com
Cc: pjt@google.com
Link: http://lkml.kernel.org/r/20131030031242.23426.13019.stgit@preeti.in.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 41c02b6b090e..074551a792f7 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -6800,7 +6800,7 @@ static inline int nohz_kick_needed(struct rq *rq, int cpu)
 		if (sd->flags & SD_SHARE_PKG_RESOURCES && nr_busy > 1)
 			goto need_kick_unlock;
 
-		if (sd->flags & SD_ASYM_PACKING && nr_busy != sg->group_weight
+		if (sd->flags & SD_ASYM_PACKING
 		    && (cpumask_first_and(nohz.idle_cpus_mask,
 					  sched_domain_span(sd)) < cpu))
 			goto need_kick_unlock;
-- 
cgit 


From 37dc6b50cee97954c4e6edcd5b1fa614b76038ee Mon Sep 17 00:00:00 2001
From: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Date: Wed, 30 Oct 2013 08:42:52 +0530
Subject: sched: Remove unnecessary iteration over sched domains to update
 nr_busy_cpus

nr_busy_cpus parameter is used by nohz_kick_needed() to find out the
number of busy cpus in a sched domain which has SD_SHARE_PKG_RESOURCES
flag set.  Therefore instead of updating nr_busy_cpus at every level
of sched domain, since it is irrelevant, we can update this parameter
only at the parent domain of the sd which has this flag set. Introduce
a per-cpu parameter sd_busy which represents this parent domain.

In nohz_kick_needed() we directly query the nr_busy_cpus parameter
associated with the groups of sd_busy.

By associating sd_busy with the highest domain which has
SD_SHARE_PKG_RESOURCES flag set, we cover all lower level domains
which could have this flag set and trigger nohz_idle_balancing if any
of the levels have more than one busy cpu.

sd_busy is irrelevant for asymmetric load balancing. However sd_asym
has been introduced to represent the highest sched domain which has
SD_ASYM_PACKING flag set so that it can be queried directly when
required.

While we are at it, we might as well change the nohz_idle parameter to
be updated at the sd_busy domain level alone and not the base domain
level of a CPU.  This will unify the concept of busy cpus at just one
level of sched domain where it is currently used.

Signed-off-by: Preeti U Murthy<preeti@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: svaidy@linux.vnet.ibm.com
Cc: vincent.guittot@linaro.org
Cc: bitbucket@online.de
Cc: benh@kernel.crashing.org
Cc: anton@samba.org
Cc: Morten.Rasmussen@arm.com
Cc: pjt@google.com
Cc: peterz@infradead.org
Cc: mikey@neuling.org
Link: http://lkml.kernel.org/r/20131030031252.23426.4417.stgit@preeti.in.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/core.c  |  6 ++++++
 kernel/sched/fair.c  | 38 ++++++++++++++++++++------------------
 kernel/sched/sched.h |  2 ++
 3 files changed, 28 insertions(+), 18 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index aa066f306be2..1deccd78be98 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4883,6 +4883,8 @@ DEFINE_PER_CPU(struct sched_domain *, sd_llc);
 DEFINE_PER_CPU(int, sd_llc_size);
 DEFINE_PER_CPU(int, sd_llc_id);
 DEFINE_PER_CPU(struct sched_domain *, sd_numa);
+DEFINE_PER_CPU(struct sched_domain *, sd_busy);
+DEFINE_PER_CPU(struct sched_domain *, sd_asym);
 
 static void update_top_cache_domain(int cpu)
 {
@@ -4894,6 +4896,7 @@ static void update_top_cache_domain(int cpu)
 	if (sd) {
 		id = cpumask_first(sched_domain_span(sd));
 		size = cpumask_weight(sched_domain_span(sd));
+		rcu_assign_pointer(per_cpu(sd_busy, cpu), sd->parent);
 	}
 
 	rcu_assign_pointer(per_cpu(sd_llc, cpu), sd);
@@ -4902,6 +4905,9 @@ static void update_top_cache_domain(int cpu)
 
 	sd = lowest_flag_domain(cpu, SD_NUMA);
 	rcu_assign_pointer(per_cpu(sd_numa, cpu), sd);
+
+	sd = highest_flag_domain(cpu, SD_ASYM_PACKING);
+	rcu_assign_pointer(per_cpu(sd_asym, cpu), sd);
 }
 
 /*
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 074551a792f7..df77c605c7a6 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -6534,16 +6534,16 @@ static inline void nohz_balance_exit_idle(int cpu)
 static inline void set_cpu_sd_state_busy(void)
 {
 	struct sched_domain *sd;
+	int cpu = smp_processor_id();
 
 	rcu_read_lock();
-	sd = rcu_dereference_check_sched_domain(this_rq()->sd);
+	sd = rcu_dereference(per_cpu(sd_busy, cpu));
 
 	if (!sd || !sd->nohz_idle)
 		goto unlock;
 	sd->nohz_idle = 0;
 
-	for (; sd; sd = sd->parent)
-		atomic_inc(&sd->groups->sgp->nr_busy_cpus);
+	atomic_inc(&sd->groups->sgp->nr_busy_cpus);
 unlock:
 	rcu_read_unlock();
 }
@@ -6551,16 +6551,16 @@ unlock:
 void set_cpu_sd_state_idle(void)
 {
 	struct sched_domain *sd;
+	int cpu = smp_processor_id();
 
 	rcu_read_lock();
-	sd = rcu_dereference_check_sched_domain(this_rq()->sd);
+	sd = rcu_dereference(per_cpu(sd_busy, cpu));
 
 	if (!sd || sd->nohz_idle)
 		goto unlock;
 	sd->nohz_idle = 1;
 
-	for (; sd; sd = sd->parent)
-		atomic_dec(&sd->groups->sgp->nr_busy_cpus);
+	atomic_dec(&sd->groups->sgp->nr_busy_cpus);
 unlock:
 	rcu_read_unlock();
 }
@@ -6767,6 +6767,8 @@ static inline int nohz_kick_needed(struct rq *rq, int cpu)
 {
 	unsigned long now = jiffies;
 	struct sched_domain *sd;
+	struct sched_group_power *sgp;
+	int nr_busy;
 
 	if (unlikely(idle_cpu(cpu)))
 		return 0;
@@ -6792,22 +6794,22 @@ static inline int nohz_kick_needed(struct rq *rq, int cpu)
 		goto need_kick;
 
 	rcu_read_lock();
-	for_each_domain(cpu, sd) {
-		struct sched_group *sg = sd->groups;
-		struct sched_group_power *sgp = sg->sgp;
-		int nr_busy = atomic_read(&sgp->nr_busy_cpus);
+	sd = rcu_dereference(per_cpu(sd_busy, cpu));
 
-		if (sd->flags & SD_SHARE_PKG_RESOURCES && nr_busy > 1)
-			goto need_kick_unlock;
+	if (sd) {
+		sgp = sd->groups->sgp;
+		nr_busy = atomic_read(&sgp->nr_busy_cpus);
 
-		if (sd->flags & SD_ASYM_PACKING
-		    && (cpumask_first_and(nohz.idle_cpus_mask,
-					  sched_domain_span(sd)) < cpu))
+		if (nr_busy > 1)
 			goto need_kick_unlock;
-
-		if (!(sd->flags & (SD_SHARE_PKG_RESOURCES | SD_ASYM_PACKING)))
-			break;
 	}
+
+	sd = rcu_dereference(per_cpu(sd_asym, cpu));
+
+	if (sd && (cpumask_first_and(nohz.idle_cpus_mask,
+				  sched_domain_span(sd)) < cpu))
+		goto need_kick_unlock;
+
 	rcu_read_unlock();
 	return 0;
 
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 4e650acffed7..88c85b21d633 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -623,6 +623,8 @@ DECLARE_PER_CPU(struct sched_domain *, sd_llc);
 DECLARE_PER_CPU(int, sd_llc_size);
 DECLARE_PER_CPU(int, sd_llc_id);
 DECLARE_PER_CPU(struct sched_domain *, sd_numa);
+DECLARE_PER_CPU(struct sched_domain *, sd_busy);
+DECLARE_PER_CPU(struct sched_domain *, sd_asym);
 
 struct sched_group_power {
 	atomic_t ref;
-- 
cgit 


From 827da44c61419f29ae3be198c342e2147f1a10cb Mon Sep 17 00:00:00 2001
From: John Stultz <john.stultz@linaro.org>
Date: Mon, 7 Oct 2013 15:51:58 -0700
Subject: net: Explicitly initialize u64_stats_sync structures for lockdep

In order to enable lockdep on seqcount/seqlock structures, we
must explicitly initialize any locks.

The u64_stats_sync structure, uses a seqcount, and thus we need
to introduce a u64_stats_init() function and use it to initialize
the structure.

This unfortunately adds a lot of fairly trivial initialization code
to a number of drivers. But the benefit of ensuring correctness makes
this worth while.

Because these changes are required for lockdep to be enabled, and the
changes are quite trivial, I've not yet split this patch out into 30-some
separate patches, as I figured it would be better to get the various
maintainers thoughts on how to best merge this change along with
the seqcount lockdep enablement.

Feedback would be appreciated!

Signed-off-by: John Stultz <john.stultz@linaro.org>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: James Morris <jmorris@namei.org>
Cc: Jesse Gross <jesse@nicira.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Mirko Lindner <mlindner@marvell.com>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Roger Luethi <rl@hellgate.ch>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Simon Horman <horms@verge.net.au>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Wensong Zhang <wensong@linux-vs.org>
Cc: netdev@vger.kernel.org
Link: http://lkml.kernel.org/r/1381186321-4906-2-git-send-email-john.stultz@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 drivers/net/dummy.c                            |  6 ++++++
 drivers/net/ethernet/emulex/benet/be_main.c    |  4 ++++
 drivers/net/ethernet/intel/igb/igb_main.c      |  5 +++++
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c  |  4 ++++
 drivers/net/ethernet/marvell/mvneta.c          |  3 +++
 drivers/net/ethernet/marvell/sky2.c            |  3 +++
 drivers/net/ethernet/neterion/vxge/vxge-main.c |  4 ++++
 drivers/net/ethernet/nvidia/forcedeth.c        |  2 ++
 drivers/net/ethernet/realtek/8139too.c         |  3 +++
 drivers/net/ethernet/tile/tilepro.c            |  2 ++
 drivers/net/ethernet/via/via-rhine.c           |  3 +++
 drivers/net/ifb.c                              |  5 +++++
 drivers/net/loopback.c                         |  6 ++++++
 drivers/net/macvlan.c                          |  7 +++++++
 drivers/net/nlmon.c                            |  8 ++++++++
 drivers/net/team/team.c                        |  6 ++++++
 drivers/net/team/team_mode_loadbalance.c       |  9 ++++++++-
 drivers/net/veth.c                             |  8 ++++++++
 drivers/net/virtio_net.c                       |  8 ++++++++
 drivers/net/vxlan.c                            |  8 ++++++++
 drivers/net/xen-netfront.c                     |  6 ++++++
 include/linux/u64_stats_sync.h                 |  7 +++++++
 net/8021q/vlan_dev.c                           |  9 ++++++++-
 net/bridge/br_device.c                         |  7 +++++++
 net/ipv4/af_inet.c                             | 14 ++++++++++++++
 net/ipv4/ip_tunnel.c                           |  8 +++++++-
 net/ipv6/addrconf.c                            | 14 ++++++++++++++
 net/ipv6/af_inet6.c                            | 14 ++++++++++++++
 net/ipv6/ip6_gre.c                             | 15 +++++++++++++++
 net/ipv6/ip6_tunnel.c                          |  7 +++++++
 net/ipv6/sit.c                                 | 15 +++++++++++++++
 net/netfilter/ipvs/ip_vs_ctl.c                 | 25 ++++++++++++++++++++++---
 net/openvswitch/datapath.c                     |  6 ++++++
 net/openvswitch/vport.c                        |  8 ++++++++
 34 files changed, 253 insertions(+), 6 deletions(-)

diff --git a/drivers/net/dummy.c b/drivers/net/dummy.c
index b710c6b2d659..bd8f84b0b894 100644
--- a/drivers/net/dummy.c
+++ b/drivers/net/dummy.c
@@ -88,10 +88,16 @@ static netdev_tx_t dummy_xmit(struct sk_buff *skb, struct net_device *dev)
 
 static int dummy_dev_init(struct net_device *dev)
 {
+	int i;
 	dev->dstats = alloc_percpu(struct pcpu_dstats);
 	if (!dev->dstats)
 		return -ENOMEM;
 
+	for_each_possible_cpu(i) {
+		struct pcpu_dstats *dstats;
+		dstats = per_cpu_ptr(dev->dstats, i);
+		u64_stats_init(&dstats->syncp);
+	}
 	return 0;
 }
 
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 2c38cc402119..edd75950855a 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -2047,6 +2047,9 @@ static int be_tx_qs_create(struct be_adapter *adapter)
 		if (status)
 			return status;
 
+		u64_stats_init(&txo->stats.sync);
+		u64_stats_init(&txo->stats.sync_compl);
+
 		/* If num_evt_qs is less than num_tx_qs, then more than
 		 * one txq share an eq
 		 */
@@ -2108,6 +2111,7 @@ static int be_rx_cqs_create(struct be_adapter *adapter)
 		if (rc)
 			return rc;
 
+		u64_stats_init(&rxo->stats.sync);
 		eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
 		rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
 		if (rc)
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 8cf44f2a8ccd..b6edb93a8fc1 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -1223,6 +1223,9 @@ static int igb_alloc_q_vector(struct igb_adapter *adapter,
 		ring->count = adapter->tx_ring_count;
 		ring->queue_index = txr_idx;
 
+		u64_stats_init(&ring->tx_syncp);
+		u64_stats_init(&ring->tx_syncp2);
+
 		/* assign ring to adapter */
 		adapter->tx_ring[txr_idx] = ring;
 
@@ -1256,6 +1259,8 @@ static int igb_alloc_q_vector(struct igb_adapter *adapter,
 		ring->count = adapter->rx_ring_count;
 		ring->queue_index = rxr_idx;
 
+		u64_stats_init(&ring->rx_syncp);
+
 		/* assign ring to adapter */
 		adapter->rx_ring[rxr_idx] = ring;
 	}
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 0ade0cd5ef53..c1750364ddc0 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -4867,6 +4867,8 @@ int ixgbe_setup_tx_resources(struct ixgbe_ring *tx_ring)
 	if (!tx_ring->tx_buffer_info)
 		goto err;
 
+	u64_stats_init(&tx_ring->syncp);
+
 	/* round up to nearest 4K */
 	tx_ring->size = tx_ring->count * sizeof(union ixgbe_adv_tx_desc);
 	tx_ring->size = ALIGN(tx_ring->size, 4096);
@@ -4949,6 +4951,8 @@ int ixgbe_setup_rx_resources(struct ixgbe_ring *rx_ring)
 	if (!rx_ring->rx_buffer_info)
 		goto err;
 
+	u64_stats_init(&rx_ring->syncp);
+
 	/* Round up to nearest 4K */
 	rx_ring->size = rx_ring->count * sizeof(union ixgbe_adv_rx_desc);
 	rx_ring->size = ALIGN(rx_ring->size, 4096);
diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index e35bac7cfdf1..cb4635c0cd73 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -2792,6 +2792,9 @@ static int mvneta_probe(struct platform_device *pdev)
 
 	pp = netdev_priv(dev);
 
+	u64_stats_init(&pp->tx_stats.syncp);
+	u64_stats_init(&pp->rx_stats.syncp);
+
 	pp->weight = MVNETA_RX_POLL_WEIGHT;
 	pp->phy_node = phy_node;
 	pp->phy_interface = phy_mode;
diff --git a/drivers/net/ethernet/marvell/sky2.c b/drivers/net/ethernet/marvell/sky2.c
index e09a8c6f8536..339d841a538b 100644
--- a/drivers/net/ethernet/marvell/sky2.c
+++ b/drivers/net/ethernet/marvell/sky2.c
@@ -4763,6 +4763,9 @@ static struct net_device *sky2_init_netdev(struct sky2_hw *hw, unsigned port,
 	sky2->hw = hw;
 	sky2->msg_enable = netif_msg_init(debug, default_msg);
 
+	u64_stats_init(&sky2->tx_stats.syncp);
+	u64_stats_init(&sky2->rx_stats.syncp);
+
 	/* Auto speed and flow control */
 	sky2->flags = SKY2_FLAG_AUTO_SPEED | SKY2_FLAG_AUTO_PAUSE;
 	if (hw->chip_id != CHIP_ID_YUKON_XL)
diff --git a/drivers/net/ethernet/neterion/vxge/vxge-main.c b/drivers/net/ethernet/neterion/vxge/vxge-main.c
index 5a20eaf903dd..44626ec1127b 100644
--- a/drivers/net/ethernet/neterion/vxge/vxge-main.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-main.c
@@ -2072,6 +2072,10 @@ static int vxge_open_vpaths(struct vxgedev *vdev)
 				vdev->config.tx_steering_type;
 			vpath->fifo.ndev = vdev->ndev;
 			vpath->fifo.pdev = vdev->pdev;
+
+			u64_stats_init(&vpath->fifo.stats.syncp);
+			u64_stats_init(&vpath->ring.stats.syncp);
+
 			if (vdev->config.tx_steering_type)
 				vpath->fifo.txq =
 					netdev_get_tx_queue(vdev->ndev, i);
diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c
index 098b96dad66f..2d045be4b5cf 100644
--- a/drivers/net/ethernet/nvidia/forcedeth.c
+++ b/drivers/net/ethernet/nvidia/forcedeth.c
@@ -5619,6 +5619,8 @@ static int nv_probe(struct pci_dev *pci_dev, const struct pci_device_id *id)
 	spin_lock_init(&np->lock);
 	spin_lock_init(&np->hwstats_lock);
 	SET_NETDEV_DEV(dev, &pci_dev->dev);
+	u64_stats_init(&np->swstats_rx_syncp);
+	u64_stats_init(&np->swstats_tx_syncp);
 
 	init_timer(&np->oom_kick);
 	np->oom_kick.data = (unsigned long) dev;
diff --git a/drivers/net/ethernet/realtek/8139too.c b/drivers/net/ethernet/realtek/8139too.c
index 3ccedeb8aba0..c40e984868ad 100644
--- a/drivers/net/ethernet/realtek/8139too.c
+++ b/drivers/net/ethernet/realtek/8139too.c
@@ -791,6 +791,9 @@ static struct net_device *rtl8139_init_board(struct pci_dev *pdev)
 
 	pci_set_master (pdev);
 
+	u64_stats_init(&tp->rx_stats.syncp);
+	u64_stats_init(&tp->tx_stats.syncp);
+
 retry:
 	/* PIO bar register comes first. */
 	bar = !use_io;
diff --git a/drivers/net/ethernet/tile/tilepro.c b/drivers/net/ethernet/tile/tilepro.c
index 106be47716e7..edb2e12a0fe2 100644
--- a/drivers/net/ethernet/tile/tilepro.c
+++ b/drivers/net/ethernet/tile/tilepro.c
@@ -1008,6 +1008,8 @@ static void tile_net_register(void *dev_ptr)
 	info->egress_timer.data = (long)info;
 	info->egress_timer.function = tile_net_handle_egress_timer;
 
+	u64_stats_init(&info->stats.syncp);
+
 	priv->cpu[my_cpu] = info;
 
 	/*
diff --git a/drivers/net/ethernet/via/via-rhine.c b/drivers/net/ethernet/via/via-rhine.c
index bdf697b184ae..dd99715e6645 100644
--- a/drivers/net/ethernet/via/via-rhine.c
+++ b/drivers/net/ethernet/via/via-rhine.c
@@ -987,6 +987,9 @@ static int rhine_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 	rp->base = ioaddr;
 
+	u64_stats_init(&rp->tx_stats.syncp);
+	u64_stats_init(&rp->rx_stats.syncp);
+
 	/* Get chip registers into a sane state */
 	rhine_power_init(dev);
 	rhine_hw_init(dev, pioaddr);
diff --git a/drivers/net/ifb.c b/drivers/net/ifb.c
index a3bed28197d2..c14d39bf32d0 100644
--- a/drivers/net/ifb.c
+++ b/drivers/net/ifb.c
@@ -265,6 +265,7 @@ MODULE_PARM_DESC(numifbs, "Number of ifb devices");
 static int __init ifb_init_one(int index)
 {
 	struct net_device *dev_ifb;
+	struct ifb_private *dp;
 	int err;
 
 	dev_ifb = alloc_netdev(sizeof(struct ifb_private),
@@ -273,6 +274,10 @@ static int __init ifb_init_one(int index)
 	if (!dev_ifb)
 		return -ENOMEM;
 
+	dp = netdev_priv(dev_ifb);
+	u64_stats_init(&dp->rsync);
+	u64_stats_init(&dp->tsync);
+
 	dev_ifb->rtnl_link_ops = &ifb_link_ops;
 	err = register_netdevice(dev_ifb);
 	if (err < 0)
diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index a17d85a331f1..ac24c27b4b2d 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -137,10 +137,16 @@ static const struct ethtool_ops loopback_ethtool_ops = {
 
 static int loopback_dev_init(struct net_device *dev)
 {
+	int i;
 	dev->lstats = alloc_percpu(struct pcpu_lstats);
 	if (!dev->lstats)
 		return -ENOMEM;
 
+	for_each_possible_cpu(i) {
+		struct pcpu_lstats *lb_stats;
+		lb_stats = per_cpu_ptr(dev->lstats, i);
+		u64_stats_init(&lb_stats->syncp);
+	}
 	return 0;
 }
 
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 9bf46bd19b87..0924e51b9ee0 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -501,6 +501,7 @@ static int macvlan_init(struct net_device *dev)
 {
 	struct macvlan_dev *vlan = netdev_priv(dev);
 	const struct net_device *lowerdev = vlan->lowerdev;
+	int i;
 
 	dev->state		= (dev->state & ~MACVLAN_STATE_MASK) |
 				  (lowerdev->state & MACVLAN_STATE_MASK);
@@ -516,6 +517,12 @@ static int macvlan_init(struct net_device *dev)
 	if (!vlan->pcpu_stats)
 		return -ENOMEM;
 
+	for_each_possible_cpu(i) {
+		struct macvlan_pcpu_stats *mvlstats;
+		mvlstats = per_cpu_ptr(vlan->pcpu_stats, i);
+		u64_stats_init(&mvlstats->syncp);
+	}
+
 	return 0;
 }
 
diff --git a/drivers/net/nlmon.c b/drivers/net/nlmon.c
index b57ce5f48962..d2bb12bfabd5 100644
--- a/drivers/net/nlmon.c
+++ b/drivers/net/nlmon.c
@@ -47,8 +47,16 @@ static int nlmon_change_mtu(struct net_device *dev, int new_mtu)
 
 static int nlmon_dev_init(struct net_device *dev)
 {
+	int i;
+
 	dev->lstats = alloc_percpu(struct pcpu_lstats);
 
+	for_each_possible_cpu(i) {
+		struct pcpu_lstats *nlmstats;
+		nlmstats = per_cpu_ptr(dev->lstats, i);
+		u64_stats_init(&nlmstats->syncp);
+	}
+
 	return dev->lstats == NULL ? -ENOMEM : 0;
 }
 
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 50e43e64d51d..6574eb8766f9 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -1540,6 +1540,12 @@ static int team_init(struct net_device *dev)
 	if (!team->pcpu_stats)
 		return -ENOMEM;
 
+	for_each_possible_cpu(i) {
+		struct team_pcpu_stats *team_stats;
+		team_stats = per_cpu_ptr(team->pcpu_stats, i);
+		u64_stats_init(&team_stats->syncp);
+	}
+
 	for (i = 0; i < TEAM_PORT_HASHENTRIES; i++)
 		INIT_HLIST_HEAD(&team->en_port_hlist[i]);
 	INIT_LIST_HEAD(&team->port_list);
diff --git a/drivers/net/team/team_mode_loadbalance.c b/drivers/net/team/team_mode_loadbalance.c
index 829a9cd2b4da..d671fc3ac5ac 100644
--- a/drivers/net/team/team_mode_loadbalance.c
+++ b/drivers/net/team/team_mode_loadbalance.c
@@ -570,7 +570,7 @@ static int lb_init(struct team *team)
 {
 	struct lb_priv *lb_priv = get_lb_priv(team);
 	lb_select_tx_port_func_t *func;
-	int err;
+	int i, err;
 
 	/* set default tx port selector */
 	func = lb_select_tx_port_get_func("hash");
@@ -588,6 +588,13 @@ static int lb_init(struct team *team)
 		goto err_alloc_pcpu_stats;
 	}
 
+	for_each_possible_cpu(i) {
+		struct lb_pcpu_stats *team_lb_stats;
+		team_lb_stats = per_cpu_ptr(lb_priv->pcpu_stats, i);
+		u64_stats_init(&team_lb_stats->syncp);
+	}
+
+
 	INIT_DELAYED_WORK(&lb_priv->ex->stats.refresh_dw, lb_stats_refresh);
 
 	err = team_options_register(team, lb_options, ARRAY_SIZE(lb_options));
diff --git a/drivers/net/veth.c b/drivers/net/veth.c
index eee1f19ef1e9..46e83e3fe999 100644
--- a/drivers/net/veth.c
+++ b/drivers/net/veth.c
@@ -230,10 +230,18 @@ static int veth_change_mtu(struct net_device *dev, int new_mtu)
 
 static int veth_dev_init(struct net_device *dev)
 {
+	int i;
+
 	dev->vstats = alloc_percpu(struct pcpu_vstats);
 	if (!dev->vstats)
 		return -ENOMEM;
 
+	for_each_possible_cpu(i) {
+		struct pcpu_vstats *veth_stats;
+		veth_stats = per_cpu_ptr(dev->vstats, i);
+		u64_stats_init(&veth_stats->syncp);
+	}
+
 	return 0;
 }
 
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 9fbdfcd1e1a0..ee384f3d612b 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -1569,6 +1569,14 @@ static int virtnet_probe(struct virtio_device *vdev)
 	if (vi->stats == NULL)
 		goto free;
 
+	for_each_possible_cpu(i) {
+		struct virtnet_stats *virtnet_stats;
+		virtnet_stats = per_cpu_ptr(vi->stats, i);
+		u64_stats_init(&virtnet_stats->tx_syncp);
+		u64_stats_init(&virtnet_stats->rx_syncp);
+	}
+
+
 	vi->vq_index = alloc_percpu(int);
 	if (vi->vq_index == NULL)
 		goto free_stats;
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
index 2ef5b6219f3f..01ab64d5f9a4 100644
--- a/drivers/net/vxlan.c
+++ b/drivers/net/vxlan.c
@@ -1884,11 +1884,19 @@ static int vxlan_init(struct net_device *dev)
 	struct vxlan_dev *vxlan = netdev_priv(dev);
 	struct vxlan_net *vn = net_generic(dev_net(dev), vxlan_net_id);
 	struct vxlan_sock *vs;
+	int i;
 
 	dev->tstats = alloc_percpu(struct pcpu_tstats);
 	if (!dev->tstats)
 		return -ENOMEM;
 
+	for_each_possible_cpu(i) {
+		struct pcpu_tstats *vxlan_stats;
+		vxlan_stats = per_cpu_ptr(dev->tstats, i);
+		u64_stats_init(&vxlan_stats->syncp);
+	}
+
+
 	spin_lock(&vn->sock_lock);
 	vs = vxlan_find_sock(dev_net(dev), vxlan->dst_port);
 	if (vs) {
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 36808bf25677..54223ac6d8a6 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -1338,6 +1338,12 @@ static struct net_device *xennet_create_dev(struct xenbus_device *dev)
 	if (np->stats == NULL)
 		goto exit;
 
+	for_each_possible_cpu(i) {
+		struct netfront_stats *xen_nf_stats;
+		xen_nf_stats = per_cpu_ptr(np->stats, i);
+		u64_stats_init(&xen_nf_stats->syncp);
+	}
+
 	/* Initialise tx_skbs as a free chain containing every entry. */
 	np->tx_skb_freelist = 0;
 	for (i = 0; i < NET_TX_RING_SIZE; i++) {
diff --git a/include/linux/u64_stats_sync.h b/include/linux/u64_stats_sync.h
index 8da8c4e87da3..7bfabd20204c 100644
--- a/include/linux/u64_stats_sync.h
+++ b/include/linux/u64_stats_sync.h
@@ -67,6 +67,13 @@ struct u64_stats_sync {
 #endif
 };
 
+
+#if BITS_PER_LONG == 32 && defined(CONFIG_SMP)
+# define u64_stats_init(syncp)	seqcount_init(syncp.seq)
+#else
+# define u64_stats_init(syncp)	do { } while (0)
+#endif
+
 static inline void u64_stats_update_begin(struct u64_stats_sync *syncp)
 {
 #if BITS_PER_LONG==32 && defined(CONFIG_SMP)
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 09bf1c38805b..4deff3ed1da1 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -558,7 +558,7 @@ static const struct net_device_ops vlan_netdev_ops;
 static int vlan_dev_init(struct net_device *dev)
 {
 	struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
-	int subclass = 0;
+	int subclass = 0, i;
 
 	netif_carrier_off(dev);
 
@@ -612,6 +612,13 @@ static int vlan_dev_init(struct net_device *dev)
 	if (!vlan_dev_priv(dev)->vlan_pcpu_stats)
 		return -ENOMEM;
 
+	for_each_possible_cpu(i) {
+		struct vlan_pcpu_stats *vlan_stat;
+		vlan_stat = per_cpu_ptr(vlan_dev_priv(dev)->vlan_pcpu_stats, i);
+		u64_stats_init(&vlan_stat->syncp);
+	}
+
+
 	return 0;
 }
 
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index ca04163635da..7893d641775b 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -88,11 +88,18 @@ out:
 static int br_dev_init(struct net_device *dev)
 {
 	struct net_bridge *br = netdev_priv(dev);
+	int i;
 
 	br->stats = alloc_percpu(struct br_cpu_netstats);
 	if (!br->stats)
 		return -ENOMEM;
 
+	for_each_possible_cpu(i) {
+		struct br_cpu_netstats *br_dev_stats;
+		br_dev_stats = per_cpu_ptr(br->stats, i);
+		u64_stats_init(&br_dev_stats->syncp);
+	}
+
 	return 0;
 }
 
diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index cfeb85cff4f0..5f4617e377b8 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1518,6 +1518,7 @@ int snmp_mib_init(void __percpu *ptr[2], size_t mibsize, size_t align)
 	ptr[0] = __alloc_percpu(mibsize, align);
 	if (!ptr[0])
 		return -ENOMEM;
+
 #if SNMP_ARRAY_SZ == 2
 	ptr[1] = __alloc_percpu(mibsize, align);
 	if (!ptr[1]) {
@@ -1561,6 +1562,8 @@ static const struct net_protocol icmp_protocol = {
 
 static __net_init int ipv4_mib_init_net(struct net *net)
 {
+	int i;
+
 	if (snmp_mib_init((void __percpu **)net->mib.tcp_statistics,
 			  sizeof(struct tcp_mib),
 			  __alignof__(struct tcp_mib)) < 0)
@@ -1569,6 +1572,17 @@ static __net_init int ipv4_mib_init_net(struct net *net)
 			  sizeof(struct ipstats_mib),
 			  __alignof__(struct ipstats_mib)) < 0)
 		goto err_ip_mib;
+
+	for_each_possible_cpu(i) {
+		struct ipstats_mib *af_inet_stats;
+		af_inet_stats = per_cpu_ptr(net->mib.ip_statistics[0], i);
+		u64_stats_init(&af_inet_stats->syncp);
+#if SNMP_ARRAY_SZ == 2
+		af_inet_stats = per_cpu_ptr(net->mib.ip_statistics[1], i);
+		u64_stats_init(&af_inet_stats->syncp);
+#endif
+	}
+
 	if (snmp_mib_init((void __percpu **)net->mib.net_statistics,
 			  sizeof(struct linux_mib),
 			  __alignof__(struct linux_mib)) < 0)
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index 63a6d6d6b875..caf01176a5e4 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -976,13 +976,19 @@ int ip_tunnel_init(struct net_device *dev)
 {
 	struct ip_tunnel *tunnel = netdev_priv(dev);
 	struct iphdr *iph = &tunnel->parms.iph;
-	int err;
+	int i, err;
 
 	dev->destructor	= ip_tunnel_dev_free;
 	dev->tstats = alloc_percpu(struct pcpu_tstats);
 	if (!dev->tstats)
 		return -ENOMEM;
 
+	for_each_possible_cpu(i) {
+		struct pcpu_tstats *ipt_stats;
+		ipt_stats = per_cpu_ptr(dev->tstats, i);
+		u64_stats_init(&ipt_stats->syncp);
+	}
+
 	err = gro_cells_init(&tunnel->gro_cells, dev);
 	if (err) {
 		free_percpu(dev->tstats);
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index cd3fb301da38..d62d589bb622 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -281,10 +281,24 @@ static void addrconf_mod_dad_timer(struct inet6_ifaddr *ifp,
 
 static int snmp6_alloc_dev(struct inet6_dev *idev)
 {
+	int i;
+
 	if (snmp_mib_init((void __percpu **)idev->stats.ipv6,
 			  sizeof(struct ipstats_mib),
 			  __alignof__(struct ipstats_mib)) < 0)
 		goto err_ip;
+
+	for_each_possible_cpu(i) {
+		struct ipstats_mib *addrconf_stats;
+		addrconf_stats = per_cpu_ptr(idev->stats.ipv6[0], i);
+		u64_stats_init(&addrconf_stats->syncp);
+#if SNMP_ARRAY_SZ == 2
+		addrconf_stats = per_cpu_ptr(idev->stats.ipv6[1], i);
+		u64_stats_init(&addrconf_stats->syncp);
+#endif
+	}
+
+
 	idev->stats.icmpv6dev = kzalloc(sizeof(struct icmpv6_mib_device),
 					GFP_KERNEL);
 	if (!idev->stats.icmpv6dev)
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 7c96100b021e..a8f8559b3dce 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -719,6 +719,8 @@ static void ipv6_packet_cleanup(void)
 
 static int __net_init ipv6_init_mibs(struct net *net)
 {
+	int i;
+
 	if (snmp_mib_init((void __percpu **)net->mib.udp_stats_in6,
 			  sizeof(struct udp_mib),
 			  __alignof__(struct udp_mib)) < 0)
@@ -731,6 +733,18 @@ static int __net_init ipv6_init_mibs(struct net *net)
 			  sizeof(struct ipstats_mib),
 			  __alignof__(struct ipstats_mib)) < 0)
 		goto err_ip_mib;
+
+	for_each_possible_cpu(i) {
+		struct ipstats_mib *af_inet6_stats;
+		af_inet6_stats = per_cpu_ptr(net->mib.ipv6_statistics[0], i);
+		u64_stats_init(&af_inet6_stats->syncp);
+#if SNMP_ARRAY_SZ == 2
+		af_inet6_stats = per_cpu_ptr(net->mib.ipv6_statistics[1], i);
+		u64_stats_init(&af_inet6_stats->syncp);
+#endif
+	}
+
+
 	if (snmp_mib_init((void __percpu **)net->mib.icmpv6_statistics,
 			  sizeof(struct icmpv6_mib),
 			  __alignof__(struct icmpv6_mib)) < 0)
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index bf4a9a084de5..8acb28621f9c 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -1252,6 +1252,7 @@ static void ip6gre_tunnel_setup(struct net_device *dev)
 static int ip6gre_tunnel_init(struct net_device *dev)
 {
 	struct ip6_tnl *tunnel;
+	int i;
 
 	tunnel = netdev_priv(dev);
 
@@ -1269,6 +1270,13 @@ static int ip6gre_tunnel_init(struct net_device *dev)
 	if (!dev->tstats)
 		return -ENOMEM;
 
+	for_each_possible_cpu(i) {
+		struct pcpu_tstats *ip6gre_tunnel_stats;
+		ip6gre_tunnel_stats = per_cpu_ptr(dev->tstats, i);
+		u64_stats_init(&ip6gre_tunnel_stats->syncp);
+	}
+
+
 	return 0;
 }
 
@@ -1449,6 +1457,7 @@ static void ip6gre_netlink_parms(struct nlattr *data[],
 static int ip6gre_tap_init(struct net_device *dev)
 {
 	struct ip6_tnl *tunnel;
+	int i;
 
 	tunnel = netdev_priv(dev);
 
@@ -1462,6 +1471,12 @@ static int ip6gre_tap_init(struct net_device *dev)
 	if (!dev->tstats)
 		return -ENOMEM;
 
+	for_each_possible_cpu(i) {
+		struct pcpu_tstats *ip6gre_tap_stats;
+		ip6gre_tap_stats = per_cpu_ptr(dev->tstats, i);
+		u64_stats_init(&ip6gre_tap_stats->syncp);
+	}
+
 	return 0;
 }
 
diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 583b77e2f69b..df1fa58528c6 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1494,12 +1494,19 @@ static inline int
 ip6_tnl_dev_init_gen(struct net_device *dev)
 {
 	struct ip6_tnl *t = netdev_priv(dev);
+	int i;
 
 	t->dev = dev;
 	t->net = dev_net(dev);
 	dev->tstats = alloc_percpu(struct pcpu_tstats);
 	if (!dev->tstats)
 		return -ENOMEM;
+
+	for_each_possible_cpu(i) {
+		struct pcpu_tstats *ip6_tnl_stats;
+		ip6_tnl_stats = per_cpu_ptr(dev->tstats, i);
+		u64_stats_init(&ip6_tnl_stats->syncp);
+	}
 	return 0;
 }
 
diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 19269453a8ea..365dc5473eb2 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1310,6 +1310,7 @@ static void ipip6_tunnel_setup(struct net_device *dev)
 static int ipip6_tunnel_init(struct net_device *dev)
 {
 	struct ip_tunnel *tunnel = netdev_priv(dev);
+	int i;
 
 	tunnel->dev = dev;
 	tunnel->net = dev_net(dev);
@@ -1322,6 +1323,12 @@ static int ipip6_tunnel_init(struct net_device *dev)
 	if (!dev->tstats)
 		return -ENOMEM;
 
+	for_each_possible_cpu(i) {
+		struct pcpu_tstats *ipip6_tunnel_stats;
+		ipip6_tunnel_stats = per_cpu_ptr(dev->tstats, i);
+		u64_stats_init(&ipip6_tunnel_stats->syncp);
+	}
+
 	return 0;
 }
 
@@ -1331,6 +1338,7 @@ static int __net_init ipip6_fb_tunnel_init(struct net_device *dev)
 	struct iphdr *iph = &tunnel->parms.iph;
 	struct net *net = dev_net(dev);
 	struct sit_net *sitn = net_generic(net, sit_net_id);
+	int i;
 
 	tunnel->dev = dev;
 	tunnel->net = dev_net(dev);
@@ -1344,6 +1352,13 @@ static int __net_init ipip6_fb_tunnel_init(struct net_device *dev)
 	dev->tstats = alloc_percpu(struct pcpu_tstats);
 	if (!dev->tstats)
 		return -ENOMEM;
+
+	for_each_possible_cpu(i) {
+		struct pcpu_tstats *ipip6_fb_stats;
+		ipip6_fb_stats = per_cpu_ptr(dev->tstats, i);
+		u64_stats_init(&ipip6_fb_stats->syncp);
+	}
+
 	dev_hold(dev);
 	rcu_assign_pointer(sitn->tunnels_wc[0], tunnel);
 	return 0;
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index a3df9bddc4f7..3825725907f6 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -842,7 +842,7 @@ ip_vs_new_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest,
 	       struct ip_vs_dest **dest_p)
 {
 	struct ip_vs_dest *dest;
-	unsigned int atype;
+	unsigned int atype, i;
 
 	EnterFunction(2);
 
@@ -869,6 +869,12 @@ ip_vs_new_dest(struct ip_vs_service *svc, struct ip_vs_dest_user_kern *udest,
 	if (!dest->stats.cpustats)
 		goto err_alloc;
 
+	for_each_possible_cpu(i) {
+		struct ip_vs_cpu_stats *ip_vs_dest_stats;
+		ip_vs_dest_stats = per_cpu_ptr(dest->stats.cpustats, i);
+		u64_stats_init(&ip_vs_dest_stats->syncp);
+	}
+
 	dest->af = svc->af;
 	dest->protocol = svc->protocol;
 	dest->vaddr = svc->addr;
@@ -1134,7 +1140,7 @@ static int
 ip_vs_add_service(struct net *net, struct ip_vs_service_user_kern *u,
 		  struct ip_vs_service **svc_p)
 {
-	int ret = 0;
+	int ret = 0, i;
 	struct ip_vs_scheduler *sched = NULL;
 	struct ip_vs_pe *pe = NULL;
 	struct ip_vs_service *svc = NULL;
@@ -1184,6 +1190,13 @@ ip_vs_add_service(struct net *net, struct ip_vs_service_user_kern *u,
 		goto out_err;
 	}
 
+	for_each_possible_cpu(i) {
+		struct ip_vs_cpu_stats *ip_vs_stats;
+		ip_vs_stats = per_cpu_ptr(svc->stats.cpustats, i);
+		u64_stats_init(&ip_vs_stats->syncp);
+	}
+
+
 	/* I'm the first user of the service */
 	atomic_set(&svc->refcnt, 0);
 
@@ -3780,7 +3793,7 @@ static struct notifier_block ip_vs_dst_notifier = {
 
 int __net_init ip_vs_control_net_init(struct net *net)
 {
-	int idx;
+	int i, idx;
 	struct netns_ipvs *ipvs = net_ipvs(net);
 
 	/* Initialize rs_table */
@@ -3799,6 +3812,12 @@ int __net_init ip_vs_control_net_init(struct net *net)
 	if (!ipvs->tot_stats.cpustats)
 		return -ENOMEM;
 
+	for_each_possible_cpu(i) {
+		struct ip_vs_cpu_stats *ipvs_tot_stats;
+		ipvs_tot_stats = per_cpu_ptr(ipvs->tot_stats.cpustats, i);
+		u64_stats_init(&ipvs_tot_stats->syncp);
+	}
+
 	spin_lock_init(&ipvs->tot_stats.lock);
 
 	proc_create("ip_vs", 0, net->proc_net, &ip_vs_info_fops);
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 2aa13bd7f2b2..b92553c02279 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -1698,6 +1698,12 @@ static int ovs_dp_cmd_new(struct sk_buff *skb, struct genl_info *info)
 		goto err_destroy_table;
 	}
 
+	for_each_possible_cpu(i) {
+		struct dp_stats_percpu *dpath_stats;
+		dpath_stats = per_cpu_ptr(dp->stats_percpu, i);
+		u64_stats_init(&dpath_stats->sync);
+	}
+
 	dp->ports = kmalloc(DP_VPORT_HASH_BUCKETS * sizeof(struct hlist_head),
 			GFP_KERNEL);
 	if (!dp->ports) {
diff --git a/net/openvswitch/vport.c b/net/openvswitch/vport.c
index 6f65dbe13812..d830a95f03a4 100644
--- a/net/openvswitch/vport.c
+++ b/net/openvswitch/vport.c
@@ -118,6 +118,7 @@ struct vport *ovs_vport_alloc(int priv_size, const struct vport_ops *ops,
 {
 	struct vport *vport;
 	size_t alloc_size;
+	int i;
 
 	alloc_size = sizeof(struct vport);
 	if (priv_size) {
@@ -141,6 +142,13 @@ struct vport *ovs_vport_alloc(int priv_size, const struct vport_ops *ops,
 		return ERR_PTR(-ENOMEM);
 	}
 
+	for_each_possible_cpu(i) {
+		struct pcpu_tstats *vport_stats;
+		vport_stats = per_cpu_ptr(vport->percpu_stats, i);
+		u64_stats_init(&vport_stats->syncp);
+	}
+
+
 	spin_lock_init(&vport->stats_lock);
 
 	return vport;
-- 
cgit 


From 1ca7d67cf5d5a2aef26a8d9afd789006fa098347 Mon Sep 17 00:00:00 2001
From: John Stultz <john.stultz@linaro.org>
Date: Mon, 7 Oct 2013 15:51:59 -0700
Subject: seqcount: Add lockdep functionality to seqcount/seqlock structures

Currently seqlocks and seqcounts don't support lockdep.

After running across a seqcount related deadlock in the timekeeping
code, I used a less-refined and more focused variant of this patch
to narrow down the cause of the issue.

This is a first-pass attempt to properly enable lockdep functionality
on seqlocks and seqcounts.

Since seqcounts are used in the vdso gettimeofday code, I've provided
non-lockdep accessors for those needs.

I've also handled one case where there were nested seqlock writers
and there may be more edge cases.

Comments and feedback would be appreciated!

Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Link: http://lkml.kernel.org/r/1381186321-4906-3-git-send-email-john.stultz@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/vdso/vclock_gettime.c |  8 ++---
 fs/dcache.c                    |  4 +--
 fs/fs_struct.c                 |  2 +-
 include/linux/init_task.h      |  8 ++---
 include/linux/lockdep.h        |  8 +++--
 include/linux/seqlock.h        | 79 ++++++++++++++++++++++++++++++++++++++----
 mm/filemap_xip.c               |  2 +-
 7 files changed, 90 insertions(+), 21 deletions(-)

diff --git a/arch/x86/vdso/vclock_gettime.c b/arch/x86/vdso/vclock_gettime.c
index 72074d528400..2ada505067cc 100644
--- a/arch/x86/vdso/vclock_gettime.c
+++ b/arch/x86/vdso/vclock_gettime.c
@@ -178,7 +178,7 @@ notrace static int __always_inline do_realtime(struct timespec *ts)
 
 	ts->tv_nsec = 0;
 	do {
-		seq = read_seqcount_begin(&gtod->seq);
+		seq = read_seqcount_begin_no_lockdep(&gtod->seq);
 		mode = gtod->clock.vclock_mode;
 		ts->tv_sec = gtod->wall_time_sec;
 		ns = gtod->wall_time_snsec;
@@ -198,7 +198,7 @@ notrace static int do_monotonic(struct timespec *ts)
 
 	ts->tv_nsec = 0;
 	do {
-		seq = read_seqcount_begin(&gtod->seq);
+		seq = read_seqcount_begin_no_lockdep(&gtod->seq);
 		mode = gtod->clock.vclock_mode;
 		ts->tv_sec = gtod->monotonic_time_sec;
 		ns = gtod->monotonic_time_snsec;
@@ -214,7 +214,7 @@ notrace static int do_realtime_coarse(struct timespec *ts)
 {
 	unsigned long seq;
 	do {
-		seq = read_seqcount_begin(&gtod->seq);
+		seq = read_seqcount_begin_no_lockdep(&gtod->seq);
 		ts->tv_sec = gtod->wall_time_coarse.tv_sec;
 		ts->tv_nsec = gtod->wall_time_coarse.tv_nsec;
 	} while (unlikely(read_seqcount_retry(&gtod->seq, seq)));
@@ -225,7 +225,7 @@ notrace static int do_monotonic_coarse(struct timespec *ts)
 {
 	unsigned long seq;
 	do {
-		seq = read_seqcount_begin(&gtod->seq);
+		seq = read_seqcount_begin_no_lockdep(&gtod->seq);
 		ts->tv_sec = gtod->monotonic_time_coarse.tv_sec;
 		ts->tv_nsec = gtod->monotonic_time_coarse.tv_nsec;
 	} while (unlikely(read_seqcount_retry(&gtod->seq, seq)));
diff --git a/fs/dcache.c b/fs/dcache.c
index ae6ebb88ceff..f750be22c08c 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -2574,7 +2574,7 @@ static void __d_move(struct dentry * dentry, struct dentry * target)
 	dentry_lock_for_move(dentry, target);
 
 	write_seqcount_begin(&dentry->d_seq);
-	write_seqcount_begin(&target->d_seq);
+	write_seqcount_begin_nested(&target->d_seq, DENTRY_D_LOCK_NESTED);
 
 	/* __d_drop does write_seqcount_barrier, but they're OK to nest. */
 
@@ -2706,7 +2706,7 @@ static void __d_materialise_dentry(struct dentry *dentry, struct dentry *anon)
 	dentry_lock_for_move(anon, dentry);
 
 	write_seqcount_begin(&dentry->d_seq);
-	write_seqcount_begin(&anon->d_seq);
+	write_seqcount_begin_nested(&anon->d_seq, DENTRY_D_LOCK_NESTED);
 
 	dparent = dentry->d_parent;
 
diff --git a/fs/fs_struct.c b/fs/fs_struct.c
index d8ac61d0c932..7dca743b2ce1 100644
--- a/fs/fs_struct.c
+++ b/fs/fs_struct.c
@@ -161,6 +161,6 @@ EXPORT_SYMBOL(current_umask);
 struct fs_struct init_fs = {
 	.users		= 1,
 	.lock		= __SPIN_LOCK_UNLOCKED(init_fs.lock),
-	.seq		= SEQCNT_ZERO,
+	.seq		= SEQCNT_ZERO(init_fs.seq),
 	.umask		= 0022,
 };
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 5cd0f0949927..b0ed422e4e4a 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -32,10 +32,10 @@ extern struct fs_struct init_fs;
 #endif
 
 #ifdef CONFIG_CPUSETS
-#define INIT_CPUSET_SEQ							\
-	.mems_allowed_seq = SEQCNT_ZERO,
+#define INIT_CPUSET_SEQ(tsk)							\
+	.mems_allowed_seq = SEQCNT_ZERO(tsk.mems_allowed_seq),
 #else
-#define INIT_CPUSET_SEQ
+#define INIT_CPUSET_SEQ(tsk)
 #endif
 
 #define INIT_SIGNALS(sig) {						\
@@ -220,7 +220,7 @@ extern struct task_group root_task_group;
 	INIT_FTRACE_GRAPH						\
 	INIT_TRACE_RECURSION						\
 	INIT_TASK_RCU_PREEMPT(tsk)					\
-	INIT_CPUSET_SEQ							\
+	INIT_CPUSET_SEQ(tsk)						\
 	INIT_VTIME(tsk)							\
 }
 
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index cfc2f119779a..92b1bfc5da60 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -497,6 +497,10 @@ static inline void print_irqtrace_events(struct task_struct *curr)
 #define rwlock_acquire_read(l, s, t, i)		lock_acquire_shared_recursive(l, s, t, NULL, i)
 #define rwlock_release(l, n, i)			lock_release(l, n, i)
 
+#define seqcount_acquire(l, s, t, i)		lock_acquire_exclusive(l, s, t, NULL, i)
+#define seqcount_acquire_read(l, s, t, i)	lock_acquire_shared_recursive(l, s, t, NULL, i)
+#define seqcount_release(l, n, i)		lock_release(l, n, i)
+
 #define mutex_acquire(l, s, t, i)		lock_acquire_exclusive(l, s, t, NULL, i)
 #define mutex_acquire_nest(l, s, t, n, i)	lock_acquire_exclusive(l, s, t, n, i)
 #define mutex_release(l, n, i)			lock_release(l, n, i)
@@ -504,11 +508,11 @@ static inline void print_irqtrace_events(struct task_struct *curr)
 #define rwsem_acquire(l, s, t, i)		lock_acquire_exclusive(l, s, t, NULL, i)
 #define rwsem_acquire_nest(l, s, t, n, i)	lock_acquire_exclusive(l, s, t, n, i)
 #define rwsem_acquire_read(l, s, t, i)		lock_acquire_shared(l, s, t, NULL, i)
-# define rwsem_release(l, n, i)			lock_release(l, n, i)
+#define rwsem_release(l, n, i)			lock_release(l, n, i)
 
 #define lock_map_acquire(l)			lock_acquire_exclusive(l, 0, 0, NULL, _THIS_IP_)
 #define lock_map_acquire_read(l)		lock_acquire_shared_recursive(l, 0, 0, NULL, _THIS_IP_)
-# define lock_map_release(l)			lock_release(l, 1, _THIS_IP_)
+#define lock_map_release(l)			lock_release(l, 1, _THIS_IP_)
 
 #ifdef CONFIG_PROVE_LOCKING
 # define might_lock(lock) 						\
diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h
index 21a209336e79..1e8a8b6e837d 100644
--- a/include/linux/seqlock.h
+++ b/include/linux/seqlock.h
@@ -34,6 +34,7 @@
 
 #include <linux/spinlock.h>
 #include <linux/preempt.h>
+#include <linux/lockdep.h>
 #include <asm/processor.h>
 
 /*
@@ -44,10 +45,50 @@
  */
 typedef struct seqcount {
 	unsigned sequence;
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+	struct lockdep_map dep_map;
+#endif
 } seqcount_t;
 
-#define SEQCNT_ZERO { 0 }
-#define seqcount_init(x)	do { *(x) = (seqcount_t) SEQCNT_ZERO; } while (0)
+static inline void __seqcount_init(seqcount_t *s, const char *name,
+					  struct lock_class_key *key)
+{
+	/*
+	 * Make sure we are not reinitializing a held lock:
+	 */
+	lockdep_init_map(&s->dep_map, name, key, 0);
+	s->sequence = 0;
+}
+
+#ifdef CONFIG_DEBUG_LOCK_ALLOC
+# define SEQCOUNT_DEP_MAP_INIT(lockname) \
+		.dep_map = { .name = #lockname } \
+
+# define seqcount_init(s)				\
+	do {						\
+		static struct lock_class_key __key;	\
+		__seqcount_init((s), #s, &__key);	\
+	} while (0)
+
+static inline void seqcount_lockdep_reader_access(const seqcount_t *s)
+{
+	seqcount_t *l = (seqcount_t *)s;
+	unsigned long flags;
+
+	local_irq_save(flags);
+	seqcount_acquire_read(&l->dep_map, 0, 0, _RET_IP_);
+	seqcount_release(&l->dep_map, 1, _RET_IP_);
+	local_irq_restore(flags);
+}
+
+#else
+# define SEQCOUNT_DEP_MAP_INIT(lockname)
+# define seqcount_init(s) __seqcount_init(s, NULL, NULL)
+# define seqcount_lockdep_reader_access(x)
+#endif
+
+#define SEQCNT_ZERO(lockname) { .sequence = 0, SEQCOUNT_DEP_MAP_INIT(lockname)}
+
 
 /**
  * __read_seqcount_begin - begin a seq-read critical section (without barrier)
@@ -75,6 +116,22 @@ repeat:
 	return ret;
 }
 
+/**
+ * read_seqcount_begin_no_lockdep - start seq-read critical section w/o lockdep
+ * @s: pointer to seqcount_t
+ * Returns: count to be passed to read_seqcount_retry
+ *
+ * read_seqcount_begin_no_lockdep opens a read critical section of the given
+ * seqcount, but without any lockdep checking. Validity of the critical
+ * section is tested by checking read_seqcount_retry function.
+ */
+static inline unsigned read_seqcount_begin_no_lockdep(const seqcount_t *s)
+{
+	unsigned ret = __read_seqcount_begin(s);
+	smp_rmb();
+	return ret;
+}
+
 /**
  * read_seqcount_begin - begin a seq-read critical section
  * @s: pointer to seqcount_t
@@ -86,9 +143,8 @@ repeat:
  */
 static inline unsigned read_seqcount_begin(const seqcount_t *s)
 {
-	unsigned ret = __read_seqcount_begin(s);
-	smp_rmb();
-	return ret;
+	seqcount_lockdep_reader_access(s);
+	return read_seqcount_begin_no_lockdep(s);
 }
 
 /**
@@ -108,6 +164,8 @@ static inline unsigned read_seqcount_begin(const seqcount_t *s)
 static inline unsigned raw_seqcount_begin(const seqcount_t *s)
 {
 	unsigned ret = ACCESS_ONCE(s->sequence);
+
+	seqcount_lockdep_reader_access(s);
 	smp_rmb();
 	return ret & ~1;
 }
@@ -152,14 +210,21 @@ static inline int read_seqcount_retry(const seqcount_t *s, unsigned start)
  * Sequence counter only version assumes that callers are using their
  * own mutexing.
  */
-static inline void write_seqcount_begin(seqcount_t *s)
+static inline void write_seqcount_begin_nested(seqcount_t *s, int subclass)
 {
 	s->sequence++;
 	smp_wmb();
+	seqcount_acquire(&s->dep_map, subclass, 0, _RET_IP_);
+}
+
+static inline void write_seqcount_begin(seqcount_t *s)
+{
+	write_seqcount_begin_nested(s, 0);
 }
 
 static inline void write_seqcount_end(seqcount_t *s)
 {
+	seqcount_release(&s->dep_map, 1, _RET_IP_);
 	smp_wmb();
 	s->sequence++;
 }
@@ -188,7 +253,7 @@ typedef struct {
  */
 #define __SEQLOCK_UNLOCKED(lockname)			\
 	{						\
-		.seqcount = SEQCNT_ZERO,		\
+		.seqcount = SEQCNT_ZERO(lockname),	\
 		.lock =	__SPIN_LOCK_UNLOCKED(lockname)	\
 	}
 
diff --git a/mm/filemap_xip.c b/mm/filemap_xip.c
index 28fe26b64f8a..d8d9fe3f685c 100644
--- a/mm/filemap_xip.c
+++ b/mm/filemap_xip.c
@@ -26,7 +26,7 @@
  * of ZERO_PAGE(), such as /dev/zero
  */
 static DEFINE_MUTEX(xip_sparse_mutex);
-static seqcount_t xip_sparse_seq = SEQCNT_ZERO;
+static seqcount_t xip_sparse_seq = SEQCNT_ZERO(xip_sparse_seq);
 static struct page *__xip_sparse_page;
 
 /* called under xip_sparse_mutex */
-- 
cgit 


From db751fe3ea6880ff5ac5abe60cb7b80deb5a4140 Mon Sep 17 00:00:00 2001
From: John Stultz <john.stultz@linaro.org>
Date: Mon, 7 Oct 2013 15:52:00 -0700
Subject: cpuset: Fix potential deadlock w/ set_mems_allowed

After adding lockdep support to seqlock/seqcount structures,
I started seeing the following warning:

[    1.070907] ======================================================
[    1.072015] [ INFO: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected ]
[    1.073181] 3.11.0+ #67 Not tainted
[    1.073801] ------------------------------------------------------
[    1.074882] kworker/u4:2/708 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
[    1.076088]  (&p->mems_allowed_seq){+.+...}, at: [<ffffffff81187d7f>] new_slab+0x5f/0x280
[    1.077572]
[    1.077572] and this task is already holding:
[    1.078593]  (&(&q->__queue_lock)->rlock){..-...}, at: [<ffffffff81339f03>] blk_execute_rq_nowait+0x53/0xf0
[    1.080042] which would create a new lock dependency:
[    1.080042]  (&(&q->__queue_lock)->rlock){..-...} -> (&p->mems_allowed_seq){+.+...}
[    1.080042]
[    1.080042] but this new dependency connects a SOFTIRQ-irq-safe lock:
[    1.080042]  (&(&q->__queue_lock)->rlock){..-...}
[    1.080042] ... which became SOFTIRQ-irq-safe at:
[    1.080042]   [<ffffffff810ec179>] __lock_acquire+0x5b9/0x1db0
[    1.080042]   [<ffffffff810edfe5>] lock_acquire+0x95/0x130
[    1.080042]   [<ffffffff818968a1>] _raw_spin_lock+0x41/0x80
[    1.080042]   [<ffffffff81560c9e>] scsi_device_unbusy+0x7e/0xd0
[    1.080042]   [<ffffffff8155a612>] scsi_finish_command+0x32/0xf0
[    1.080042]   [<ffffffff81560e91>] scsi_softirq_done+0xa1/0x130
[    1.080042]   [<ffffffff8133b0f3>] blk_done_softirq+0x73/0x90
[    1.080042]   [<ffffffff81095dc0>] __do_softirq+0x110/0x2f0
[    1.080042]   [<ffffffff81095fcd>] run_ksoftirqd+0x2d/0x60
[    1.080042]   [<ffffffff810bc506>] smpboot_thread_fn+0x156/0x1e0
[    1.080042]   [<ffffffff810b3916>] kthread+0xd6/0xe0
[    1.080042]   [<ffffffff818980ac>] ret_from_fork+0x7c/0xb0
[    1.080042]
[    1.080042] to a SOFTIRQ-irq-unsafe lock:
[    1.080042]  (&p->mems_allowed_seq){+.+...}
[    1.080042] ... which became SOFTIRQ-irq-unsafe at:
[    1.080042] ...  [<ffffffff810ec1d3>] __lock_acquire+0x613/0x1db0
[    1.080042]   [<ffffffff810edfe5>] lock_acquire+0x95/0x130
[    1.080042]   [<ffffffff810b3df2>] kthreadd+0x82/0x180
[    1.080042]   [<ffffffff818980ac>] ret_from_fork+0x7c/0xb0
[    1.080042]
[    1.080042] other info that might help us debug this:
[    1.080042]
[    1.080042]  Possible interrupt unsafe locking scenario:
[    1.080042]
[    1.080042]        CPU0                    CPU1
[    1.080042]        ----                    ----
[    1.080042]   lock(&p->mems_allowed_seq);
[    1.080042]                                local_irq_disable();
[    1.080042]                                lock(&(&q->__queue_lock)->rlock);
[    1.080042]                                lock(&p->mems_allowed_seq);
[    1.080042]   <Interrupt>
[    1.080042]     lock(&(&q->__queue_lock)->rlock);
[    1.080042]
[    1.080042]  *** DEADLOCK ***

The issue stems from the kthreadd() function calling set_mems_allowed
with irqs enabled. While its possibly unlikely for the actual deadlock
to trigger, a fix is fairly simple: disable irqs before taking the
mems_allowed_seq lock.

Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Li Zefan <lizefan@huawei.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Link: http://lkml.kernel.org/r/1381186321-4906-4-git-send-email-john.stultz@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/cpuset.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h
index cc1b01cf2035..3fe661fe96d1 100644
--- a/include/linux/cpuset.h
+++ b/include/linux/cpuset.h
@@ -110,10 +110,14 @@ static inline bool put_mems_allowed(unsigned int seq)
 
 static inline void set_mems_allowed(nodemask_t nodemask)
 {
+	unsigned long flags;
+
 	task_lock(current);
+	local_irq_save(flags);
 	write_seqcount_begin(&current->mems_allowed_seq);
 	current->mems_allowed = nodemask;
 	write_seqcount_end(&current->mems_allowed_seq);
+	local_irq_restore(flags);
 	task_unlock(current);
 }
 
-- 
cgit 


From 5ac68e7c34a4797aa4ca9615e5a6603bda1abe9b Mon Sep 17 00:00:00 2001
From: John Stultz <john.stultz@linaro.org>
Date: Mon, 7 Oct 2013 15:52:01 -0700
Subject: ipv6: Fix possible ipv6 seqlock deadlock

While enabling lockdep on seqlocks, I ran across the warning below
caused by the ipv6 stats being updated in both irq and non-irq context.

This patch changes from IP6_INC_STATS_BH to IP6_INC_STATS (suggested
by Eric Dumazet) to resolve this problem.

[   11.120383] =================================
[   11.121024] [ INFO: inconsistent lock state ]
[   11.121663] 3.12.0-rc1+ #68 Not tainted
[   11.122229] ---------------------------------
[   11.122867] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
[   11.123741] init/4483 [HC0[0]:SC1[3]:HE1:SE0] takes:
[   11.124505]  (&stats->syncp.seq#6){+.?...}, at: [<c1ab80c2>] ndisc_send_ns+0xe2/0x130
[   11.125736] {SOFTIRQ-ON-W} state was registered at:
[   11.126447]   [<c10e0eb7>] __lock_acquire+0x5c7/0x1af0
[   11.127222]   [<c10e2996>] lock_acquire+0x96/0xd0
[   11.127925]   [<c1a9a2c3>] write_seqcount_begin+0x33/0x40
[   11.128766]   [<c1a9aa03>] ip6_dst_lookup_tail+0x3a3/0x460
[   11.129582]   [<c1a9e0ce>] ip6_dst_lookup_flow+0x2e/0x80
[   11.130014]   [<c1ad18e0>] ip6_datagram_connect+0x150/0x4e0
[   11.130014]   [<c1a4d0b5>] inet_dgram_connect+0x25/0x70
[   11.130014]   [<c198dd61>] SYSC_connect+0xa1/0xc0
[   11.130014]   [<c198f571>] SyS_connect+0x11/0x20
[   11.130014]   [<c198fe6b>] SyS_socketcall+0x12b/0x300
[   11.130014]   [<c1bbf880>] syscall_call+0x7/0xb
[   11.130014] irq event stamp: 1184
[   11.130014] hardirqs last  enabled at (1184): [<c1086901>] local_bh_enable+0x71/0x110
[   11.130014] hardirqs last disabled at (1183): [<c10868cd>] local_bh_enable+0x3d/0x110
[   11.130014] softirqs last  enabled at (0): [<c108014d>] copy_process.part.42+0x45d/0x11a0
[   11.130014] softirqs last disabled at (1147): [<c1086e05>] irq_exit+0xa5/0xb0
[   11.130014]
[   11.130014] other info that might help us debug this:
[   11.130014]  Possible unsafe locking scenario:
[   11.130014]
[   11.130014]        CPU0
[   11.130014]        ----
[   11.130014]   lock(&stats->syncp.seq#6);
[   11.130014]   <Interrupt>
[   11.130014]     lock(&stats->syncp.seq#6);
[   11.130014]
[   11.130014]  *** DEADLOCK ***
[   11.130014]
[   11.130014] 3 locks held by init/4483:
[   11.130014]  #0:  (rcu_read_lock){.+.+..}, at: [<c109363c>] SyS_setpriority+0x4c/0x620
[   11.130014]  #1:  (((&ifa->dad_timer))){+.-...}, at: [<c108c1c0>] call_timer_fn+0x0/0xf0
[   11.130014]  #2:  (rcu_read_lock){.+.+..}, at: [<c1ab6494>] ndisc_send_skb+0x54/0x5d0
[   11.130014]
[   11.130014] stack backtrace:
[   11.130014] CPU: 0 PID: 4483 Comm: init Not tainted 3.12.0-rc1+ #68
[   11.130014] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.130014]  00000000 00000000 c55e5c10 c1bb0e71 c57128b0 c55e5c4c c1badf79 c1ec1123
[   11.130014]  c1ec1484 00001183 00000000 00000000 00000001 00000003 00000001 00000000
[   11.130014]  c1ec1484 00000004 c5712dcc 00000000 c55e5c84 c10de492 00000004 c10755f2
[   11.130014] Call Trace:
[   11.130014]  [<c1bb0e71>] dump_stack+0x4b/0x66
[   11.130014]  [<c1badf79>] print_usage_bug+0x1d3/0x1dd
[   11.130014]  [<c10de492>] mark_lock+0x282/0x2f0
[   11.130014]  [<c10755f2>] ? kvm_clock_read+0x22/0x30
[   11.130014]  [<c10dd8b0>] ? check_usage_backwards+0x150/0x150
[   11.130014]  [<c10e0e74>] __lock_acquire+0x584/0x1af0
[   11.130014]  [<c10b1baf>] ? sched_clock_cpu+0xef/0x190
[   11.130014]  [<c10de58c>] ? mark_held_locks+0x8c/0xf0
[   11.130014]  [<c10e2996>] lock_acquire+0x96/0xd0
[   11.130014]  [<c1ab80c2>] ? ndisc_send_ns+0xe2/0x130
[   11.130014]  [<c1ab66d3>] ndisc_send_skb+0x293/0x5d0
[   11.130014]  [<c1ab80c2>] ? ndisc_send_ns+0xe2/0x130
[   11.130014]  [<c1ab80c2>] ndisc_send_ns+0xe2/0x130
[   11.130014]  [<c108cc32>] ? mod_timer+0xf2/0x160
[   11.130014]  [<c1aa706e>] ? addrconf_dad_timer+0xce/0x150
[   11.130014]  [<c1aa70aa>] addrconf_dad_timer+0x10a/0x150
[   11.130014]  [<c1aa6fa0>] ? addrconf_dad_completed+0x1c0/0x1c0
[   11.130014]  [<c108c233>] call_timer_fn+0x73/0xf0
[   11.130014]  [<c108c1c0>] ? __internal_add_timer+0xb0/0xb0
[   11.130014]  [<c1aa6fa0>] ? addrconf_dad_completed+0x1c0/0x1c0
[   11.130014]  [<c108c5b1>] run_timer_softirq+0x141/0x1e0
[   11.130014]  [<c1086b20>] ? __do_softirq+0x70/0x1b0
[   11.130014]  [<c1086b70>] __do_softirq+0xc0/0x1b0
[   11.130014]  [<c1086e05>] irq_exit+0xa5/0xb0
[   11.130014]  [<c106cfd5>] smp_apic_timer_interrupt+0x35/0x50
[   11.130014]  [<c1bbfbca>] apic_timer_interrupt+0x32/0x38
[   11.130014]  [<c10936ed>] ? SyS_setpriority+0xfd/0x620
[   11.130014]  [<c10e26c9>] ? lock_release+0x9/0x240
[   11.130014]  [<c10936d7>] ? SyS_setpriority+0xe7/0x620
[   11.130014]  [<c1bbee6d>] ? _raw_read_unlock+0x1d/0x30
[   11.130014]  [<c1093701>] SyS_setpriority+0x111/0x620
[   11.130014]  [<c109363c>] ? SyS_setpriority+0x4c/0x620
[   11.130014]  [<c1bbf880>] syscall_call+0x7/0xb

Signed-off-by: John Stultz <john.stultz@linaro.org>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: James Morris <jmorris@namei.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: netdev@vger.kernel.org
Link: http://lkml.kernel.org/r/1381186321-4906-5-git-send-email-john.stultz@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 net/ipv6/ip6_output.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 91fb4e8212f5..ad138b187fb2 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -909,7 +909,7 @@ static int ip6_dst_lookup_tail(struct sock *sk,
 
 out_err_release:
 	if (err == -ENETUNREACH)
-		IP6_INC_STATS_BH(net, NULL, IPSTATS_MIB_OUTNOROUTES);
+		IP6_INC_STATS(net, NULL, IPSTATS_MIB_OUTNOROUTES);
 	dst_release(*dst);
 	*dst = NULL;
 	return err;
-- 
cgit 


From 61c77e0802719efce8966619cdc4234de7f252c1 Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Wed, 6 Nov 2013 11:42:41 +0000
Subject: arm64: locks: Remove CONFIG_GENERIC_LOCKBREAK

Commit 52ea2a560a9d (arm64: locks: introduce ticket-based spinlock
implementation) introduces the arch_spin_is_contended() function making
CONFIG_GENERIC_LOCKBREAK unnecessary.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
---
 arch/arm64/Kconfig | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index bbb5d9480130..ce6ae9497492 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -62,10 +62,6 @@ config LOCKDEP_SUPPORT
 config TRACE_IRQFLAGS_SUPPORT
 	def_bool y
 
-config GENERIC_LOCKBREAK
-	def_bool y
-	depends on SMP && PREEMPT
-
 config RWSEM_GENERIC_SPINLOCK
 	def_bool y
 
-- 
cgit 


From de9587a2f54d2d0063f0dbc775328129b9daaaa2 Mon Sep 17 00:00:00 2001
From: Steffen Maier <maier@linux.vnet.ibm.com>
Date: Tue, 5 Nov 2013 12:59:46 +0100
Subject: s390/scm_blk: fix endless loop for requests != REQ_TYPE_FS

The while loop only peeks at the top request in the queue but does
not yet consume it. Since we only handle fs requests, we need to
dequeue and complete all other request command types with error
just in case we would ever receive such an unforeseen request.

Signed-off-by: Steffen Maier <maier@linux.vnet.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/s390/block/scm_blk.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/s390/block/scm_blk.c b/drivers/s390/block/scm_blk.c
index 5d73e6e49af6..548209a9c43c 100644
--- a/drivers/s390/block/scm_blk.c
+++ b/drivers/s390/block/scm_blk.c
@@ -223,8 +223,12 @@ static void scm_blk_request(struct request_queue *rq)
 	int ret;
 
 	while ((req = blk_peek_request(rq))) {
-		if (req->cmd_type != REQ_TYPE_FS)
+		if (req->cmd_type != REQ_TYPE_FS) {
+			blk_start_request(req);
+			blk_dump_rq_flags(req, KMSG_COMPONENT " bad request");
+			blk_end_request_all(req, -EIO);
 			continue;
+		}
 
 		if (!scm_permit_request(bdev, req)) {
 			scm_ensure_queue_restart(bdev);
-- 
cgit 


From fbf8c53f1a2ac7610ed124043600dc074992e71b Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Wed, 6 Nov 2013 14:01:51 +0000
Subject: KEYS: Fix UID check in keyctl_get_persistent()

If the UID is specified by userspace when calling the KEYCTL_GET_PERSISTENT
function and the process does not have the CAP_SETUID capability, then the
function will return -EPERM if the current process's uid, suid, euid and fsuid
all match the requested UID.  This is incorrect.

Fix it such that when a non-privileged caller requests a persistent keyring by
a specific UID they can only request their own (ie. the specified UID matches
either then process's UID or the process's EUID).

This can be tested by logging in as the user and doing:

	keyctl get_persistent @p
	keyctl get_persistent @p `id -u`
	keyctl get_persistent @p 0

The first two should successfully print the same key ID.  The third should do
the same if called by UID 0 or indicate Operation Not Permitted otherwise.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Stephen Gallagher <sgallagh@redhat.com>
---
 security/keys/persistent.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/security/keys/persistent.c b/security/keys/persistent.c
index 82f4957a7acf..0ad3ee283781 100644
--- a/security/keys/persistent.c
+++ b/security/keys/persistent.c
@@ -144,10 +144,8 @@ long keyctl_get_persistent(uid_t _uid, key_serial_t destid)
 		/* You can only see your own persistent cache if you're not
 		 * sufficiently privileged.
 		 */
-		if (uid_eq(uid, current_uid()) &&
-		    uid_eq(uid, current_suid()) &&
-		    uid_eq(uid, current_euid()) &&
-		    uid_eq(uid, current_fsuid()) &&
+		if (!uid_eq(uid, current_uid()) &&
+		    !uid_eq(uid, current_euid()) &&
 		    !ns_capable(ns, CAP_SETUID))
 			return -EPERM;
 	}
-- 
cgit 


From 723ff7943249efcea8fd814ec1eff728f38f5935 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Wed, 23 Oct 2013 12:37:44 +0200
Subject: MIPS: remove duplicate define

This patch removes a duplicate define from
arch/mips/boot/ecoff.h

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/6081/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
---
 arch/mips/boot/ecoff.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/mips/boot/ecoff.h b/arch/mips/boot/ecoff.h
index 83e5c3813d67..7a75ce2c1bcd 100644
--- a/arch/mips/boot/ecoff.h
+++ b/arch/mips/boot/ecoff.h
@@ -12,7 +12,6 @@ typedef struct filehdr {
 } FILHDR;
 #define FILHSZ	sizeof(FILHDR)
 
-#define OMAGIC		0407
 #define MIPSEBMAGIC	0x160
 #define MIPSELMAGIC	0x162
 
-- 
cgit 


From b2f974d6af9accfec11e69cc76d2ab9f0c7359e0 Mon Sep 17 00:00:00 2001
From: Cody P Schafer <cody@linux.vnet.ibm.com>
Date: Wed, 23 Oct 2013 11:49:57 -0700
Subject: tracing: Open tracer when ftrace_dump_on_oops is used

With ftrace_dump_on_oops, we previously did not open the tracer in
question, sometimes causing the trace output to be useless.

For example, the function_graph tracer with tracing_thresh set dumped via
ftrace_dump_on_oops would show a series of '}' indented at different levels,
but no function names.

call trace->open() (and do a few other fixups copied from the normal dump
path) to make the output more intelligible.

Link: http://lkml.kernel.org/r/1382554197-16961-1-git-send-email-cody@linux.vnet.ibm.com

Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/trace.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index f9fa42b180e3..eaacd3aab896 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -6276,6 +6276,17 @@ void trace_init_global_iter(struct trace_iterator *iter)
 	iter->trace = iter->tr->current_trace;
 	iter->cpu_file = RING_BUFFER_ALL_CPUS;
 	iter->trace_buffer = &global_trace.trace_buffer;
+
+	if (iter->trace && iter->trace->open)
+		iter->trace->open(iter);
+
+	/* Annotate start of buffers if we had overruns */
+	if (ring_buffer_overruns(iter->trace_buffer->buffer))
+		iter->iter_flags |= TRACE_FILE_ANNOTATE;
+
+	/* Output in nanoseconds only if we are using a clock in nanoseconds. */
+	if (trace_clocks[iter->tr->clock_id].in_ns)
+		iter->iter_flags |= TRACE_FILE_TIME_IN_NS;
 }
 
 void ftrace_dump(enum ftrace_dump_mode oops_dump_mode)
-- 
cgit 


From 2e86421debc2cf4d1513c9b73fcd34c5ce431ae3 Mon Sep 17 00:00:00 2001
From: "Geyslan G. Bem" <geyslan@gmail.com>
Date: Fri, 18 Oct 2013 21:15:54 -0300
Subject: tracing: Add helper function tracing_is_disabled()

This patch creates the function 'tracing_is_disabled', which
can be used outside of trace.c.

Link: http://lkml.kernel.org/r/1382141754-12155-1-git-send-email-geyslan@gmail.com

Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/trace.c | 5 +++++
 kernel/trace/trace.h | 1 +
 2 files changed, 6 insertions(+)

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index eaacd3aab896..2a595cf14f1c 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -2987,6 +2987,11 @@ int tracing_open_generic(struct inode *inode, struct file *filp)
 	return 0;
 }
 
+bool tracing_is_disabled(void)
+{
+	return (tracing_disabled) ? true: false;
+}
+
 /*
  * Open and update trace_array ref count.
  * Must have the current trace_array passed to it.
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 9c27cdadd71f..4388e16484f1 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -514,6 +514,7 @@ void tracing_reset_online_cpus(struct trace_buffer *buf);
 void tracing_reset_current(int cpu);
 void tracing_reset_all_online_cpus(void);
 int tracing_open_generic(struct inode *inode, struct file *filp);
+bool tracing_is_disabled(void);
 struct dentry *trace_create_file(const char *name,
 				 umode_t mode,
 				 struct dentry *parent,
-- 
cgit 


From 9175c9d2aed528800175ef81c90569d00d23f9be Mon Sep 17 00:00:00 2001
From: Eric Paris <eparis@redhat.com>
Date: Wed, 6 Nov 2013 10:47:17 -0500
Subject: audit: fix type of sessionid in audit_set_loginuid()

sfr pointed out that with CONFIG_UIDGID_STRICT_TYPE_CHECKS set the audit
tree would not build.  This is because the oldsessionid in
audit_set_loginuid() was accidentally being declared as a kuid_t.  This
patch fixes that declaration mistake.

Example of problem:
kernel/auditsc.c: In function 'audit_set_loginuid':
kernel/auditsc.c:2003:15: error: incompatible types when assigning to
type 'kuid_t' from type 'int'
  oldsessionid = audit_get_sessionid(current);

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Eric Paris <eparis@redhat.com>
---
 kernel/auditsc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index dfc5d6745ee5..90594c9f7552 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1995,8 +1995,8 @@ static void audit_log_set_loginuid(kuid_t koldloginuid, kuid_t kloginuid,
 int audit_set_loginuid(kuid_t loginuid)
 {
 	struct task_struct *task = current;
-	unsigned int sessionid = -1;
-	kuid_t oldloginuid, oldsessionid;
+	unsigned int oldsessionid, sessionid = (unsigned int)-1;
+	kuid_t oldloginuid;
 	int rc;
 
 	oldloginuid = audit_get_loginuid(current);
-- 
cgit 


From 77ed16cc6c4d8ff0fe7b18c53e13826a81bd4d06 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 6 Nov 2013 17:54:02 +0100
Subject: ALSA: cmi8328: Fix compile warnings without CONFIG_PM
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Just add an ifdef CONFIG_PM to shut up the warnings:

  sound/isa/cmi8328.c:129:13: warning: ‘snd_cmi8328_cfg_save’ defined but not used [-Wunused-function]
  sound/isa/cmi8328.c:136:13: warning: ‘snd_cmi8328_cfg_restore’ defined but not used [-Wunused-function]

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/isa/cmi8328.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/isa/cmi8328.c b/sound/isa/cmi8328.c
index f84f073fc1e8..ab6b2dc043f1 100644
--- a/sound/isa/cmi8328.c
+++ b/sound/isa/cmi8328.c
@@ -126,6 +126,7 @@ static void snd_cmi8328_cfg_write(u16 port, u8 reg, u8 val)
 	outb(val, port + 3);	/* yes, value goes to the same port as index */
 }
 
+#ifdef CONFIG_PM
 static void snd_cmi8328_cfg_save(u16 port, u8 cfg[])
 {
 	cfg[0] = snd_cmi8328_cfg_read(port, CFG1);
@@ -139,6 +140,7 @@ static void snd_cmi8328_cfg_restore(u16 port, u8 cfg[])
 	snd_cmi8328_cfg_write(port, CFG2, cfg[1]);
 	snd_cmi8328_cfg_write(port, CFG3, cfg[2]);
 }
+#endif /* CONFIG_PM */
 
 static int snd_cmi8328_mixer(struct snd_wss *chip)
 {
-- 
cgit 


From 293db84270c2fc37f56030d09c43c7eb7939a7c3 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 6 Nov 2013 17:54:55 +0100
Subject: ALSA: lx6464es: Fix pointer cast compile warnings

The warnings are really harmless but annoying.  Since they are only
about debug prints, and it's at most 32bit DMA, let's just cast to
unsigned long.

  sound/pci/lx6464es/lx6464es.c:457:22: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
  sound/pci/lx6464es/lx_core.c:1195:21: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/lx6464es/lx6464es.c | 4 ++--
 sound/pci/lx6464es/lx_core.c  | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/sound/pci/lx6464es/lx6464es.c b/sound/pci/lx6464es/lx6464es.c
index 3230e57f246c..5fcaaa6da4a8 100644
--- a/sound/pci/lx6464es/lx6464es.c
+++ b/sound/pci/lx6464es/lx6464es.c
@@ -453,8 +453,8 @@ static void lx_trigger_start(struct lx6464es *chip, struct lx_stream *lx_stream)
 				     lower_32_bits(buf), upper_32_bits(buf),
 				     &buffer_index);
 
-		snd_printdd(LXP "starting: buffer index %x on %p (%d bytes)\n",
-			    buffer_index, (void *)buf, period_bytes);
+		snd_printdd(LXP "starting: buffer index %x on 0x%lx (%d bytes)\n",
+			    buffer_index, (unsigned long)buf, period_bytes);
 		buf += period_bytes;
 	}
 
diff --git a/sound/pci/lx6464es/lx_core.c b/sound/pci/lx6464es/lx_core.c
index 633c8607d053..626ecad4dae7 100644
--- a/sound/pci/lx6464es/lx_core.c
+++ b/sound/pci/lx6464es/lx_core.c
@@ -1191,8 +1191,8 @@ static int lx_interrupt_request_new_buffer(struct lx6464es *chip,
 	unpack_pointer(buf, &buf_lo, &buf_hi);
 	err = lx_buffer_give(chip, 0, is_capture, period_bytes, buf_lo, buf_hi,
 			     &buffer_index);
-	snd_printdd(LXP "interrupt: gave buffer index %x on %p (%d bytes)\n",
-		    buffer_index, (void *)buf, period_bytes);
+	snd_printdd(LXP "interrupt: gave buffer index %x on 0x%lx (%d bytes)\n",
+		    buffer_index, (unsigned long)buf, period_bytes);
 
 	lx_stream->frame_pos = next_pos;
 	spin_unlock_irqrestore(&chip->lock, flags);
-- 
cgit 


From 4c08edd305019061bf1ac95ce089497bdbb8b8ac Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Wed, 6 Nov 2013 10:00:05 -0800
Subject: x86, hyperv: Move a variable to avoid an unused variable warning

The variable hv_lapic_frequency causes an unused variable warning if
CONFIG_X86_LOCAL_APIC is disabled.  Since the variable is only used
inside a small if statement, move the declaration of that variable
into the if statement itself.

Cc: K. Y. Srinivasan <kys@microsoft.com>
Link: http://lkml.kernel.org/r/1381444224-3303-1-git-send-email-kys@microsoft.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/kernel/cpu/mshyperv.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/cpu/mshyperv.c b/arch/x86/kernel/cpu/mshyperv.c
index 9f6e9f89d9d6..9f7ca266864a 100644
--- a/arch/x86/kernel/cpu/mshyperv.c
+++ b/arch/x86/kernel/cpu/mshyperv.c
@@ -70,8 +70,6 @@ static struct clocksource hyperv_cs = {
 
 static void __init ms_hyperv_init_platform(void)
 {
-	u64	hv_lapic_frequency;
-
 	/*
 	 * Extract the features and hints
 	 */
@@ -86,6 +84,8 @@ static void __init ms_hyperv_init_platform(void)
 		/*
 		 * Get the APIC frequency.
 		 */
+		u64	hv_lapic_frequency;
+
 		rdmsrl(HV_X64_MSR_APIC_FREQUENCY, hv_lapic_frequency);
 		hv_lapic_frequency = div_u64(hv_lapic_frequency, HZ);
 		lapic_timer_frequency = hv_lapic_frequency;
-- 
cgit 


From 750b9c90668b173a92b20e747b9736b8537eda5a Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Fri, 1 Nov 2013 15:27:18 +1100
Subject: xfs: trace AIL manipulations

I debugging a log tail issue on a RHEL6 kernel, I added these trace
points to trace log items being added, moved and removed in the AIL
and how that affected the log tail LSN that was written to the log.
They were very helpful in that they immediately identified the cause
of the problem being seen. Hence I'd like to always have them
available for use.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_log.c       |  1 +
 fs/xfs/xfs_trace.h     | 59 +++++++++++++++++++++++++++++++++++++++++++++++++-
 fs/xfs/xfs_trans_ail.c |  3 +++
 3 files changed, 62 insertions(+), 1 deletion(-)

diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 49dd41e6a2dc..8497a00e399d 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -1076,6 +1076,7 @@ xlog_assign_tail_lsn_locked(
 		tail_lsn = lip->li_lsn;
 	else
 		tail_lsn = atomic64_read(&log->l_last_sync_lsn);
+	trace_xfs_log_assign_tail_lsn(log, tail_lsn);
 	atomic64_set(&log->l_tail_lsn, tail_lsn);
 	return tail_lsn;
 }
diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
index 47910e638c18..f195476a037c 100644
--- a/fs/xfs/xfs_trace.h
+++ b/fs/xfs/xfs_trace.h
@@ -31,8 +31,8 @@ struct xfs_da_args;
 struct xfs_da_node_entry;
 struct xfs_dquot;
 struct xfs_log_item;
-struct xlog_ticket;
 struct xlog;
+struct xlog_ticket;
 struct xlog_recover;
 struct xlog_recover_item;
 struct xfs_buf_log_format;
@@ -938,6 +938,63 @@ DEFINE_LOG_ITEM_EVENT(xfs_ail_pinned);
 DEFINE_LOG_ITEM_EVENT(xfs_ail_locked);
 DEFINE_LOG_ITEM_EVENT(xfs_ail_flushing);
 
+DECLARE_EVENT_CLASS(xfs_ail_class,
+	TP_PROTO(struct xfs_log_item *lip, xfs_lsn_t old_lsn, xfs_lsn_t new_lsn),
+	TP_ARGS(lip, old_lsn, new_lsn),
+	TP_STRUCT__entry(
+		__field(dev_t, dev)
+		__field(void *, lip)
+		__field(uint, type)
+		__field(uint, flags)
+		__field(xfs_lsn_t, old_lsn)
+		__field(xfs_lsn_t, new_lsn)
+	),
+	TP_fast_assign(
+		__entry->dev = lip->li_mountp->m_super->s_dev;
+		__entry->lip = lip;
+		__entry->type = lip->li_type;
+		__entry->flags = lip->li_flags;
+		__entry->old_lsn = old_lsn;
+		__entry->new_lsn = new_lsn;
+	),
+	TP_printk("dev %d:%d lip 0x%p old lsn %d/%d new lsn %d/%d type %s flags %s",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->lip,
+		  CYCLE_LSN(__entry->old_lsn), BLOCK_LSN(__entry->old_lsn),
+		  CYCLE_LSN(__entry->new_lsn), BLOCK_LSN(__entry->new_lsn),
+		  __print_symbolic(__entry->type, XFS_LI_TYPE_DESC),
+		  __print_flags(__entry->flags, "|", XFS_LI_FLAGS))
+)
+
+#define DEFINE_AIL_EVENT(name) \
+DEFINE_EVENT(xfs_ail_class, name, \
+	TP_PROTO(struct xfs_log_item *lip, xfs_lsn_t old_lsn, xfs_lsn_t new_lsn), \
+	TP_ARGS(lip, old_lsn, new_lsn))
+DEFINE_AIL_EVENT(xfs_ail_insert);
+DEFINE_AIL_EVENT(xfs_ail_move);
+DEFINE_AIL_EVENT(xfs_ail_delete);
+
+TRACE_EVENT(xfs_log_assign_tail_lsn,
+	TP_PROTO(struct xlog *log, xfs_lsn_t new_lsn),
+	TP_ARGS(log, new_lsn),
+	TP_STRUCT__entry(
+		__field(dev_t, dev)
+		__field(xfs_lsn_t, new_lsn)
+		__field(xfs_lsn_t, old_lsn)
+		__field(xfs_lsn_t, last_sync_lsn)
+	),
+	TP_fast_assign(
+		__entry->dev = log->l_mp->m_super->s_dev;
+		__entry->new_lsn = new_lsn;
+		__entry->old_lsn = atomic64_read(&log->l_tail_lsn);
+		__entry->last_sync_lsn = atomic64_read(&log->l_last_sync_lsn);
+	),
+	TP_printk("dev %d:%d new tail lsn %d/%d, old lsn %d/%d, last sync %d/%d",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  CYCLE_LSN(__entry->new_lsn), BLOCK_LSN(__entry->new_lsn),
+		  CYCLE_LSN(__entry->old_lsn), BLOCK_LSN(__entry->old_lsn),
+		  CYCLE_LSN(__entry->last_sync_lsn), BLOCK_LSN(__entry->last_sync_lsn))
+)
 
 DECLARE_EVENT_CLASS(xfs_file_class,
 	TP_PROTO(struct xfs_inode *ip, size_t count, loff_t offset, int flags),
diff --git a/fs/xfs/xfs_trans_ail.c b/fs/xfs/xfs_trans_ail.c
index 4b47cfebd25b..a7287354e535 100644
--- a/fs/xfs/xfs_trans_ail.c
+++ b/fs/xfs/xfs_trans_ail.c
@@ -659,11 +659,13 @@ xfs_trans_ail_update_bulk(
 			if (XFS_LSN_CMP(lsn, lip->li_lsn) <= 0)
 				continue;
 
+			trace_xfs_ail_move(lip, lip->li_lsn, lsn);
 			xfs_ail_delete(ailp, lip);
 			if (mlip == lip)
 				mlip_changed = 1;
 		} else {
 			lip->li_flags |= XFS_LI_IN_AIL;
+			trace_xfs_ail_insert(lip, 0, lsn);
 		}
 		lip->li_lsn = lsn;
 		list_add(&lip->li_ail, &tmp);
@@ -732,6 +734,7 @@ xfs_trans_ail_delete_bulk(
 			return;
 		}
 
+		trace_xfs_ail_delete(lip, mlip->li_lsn, lip->li_lsn);
 		xfs_ail_delete(ailp, lip);
 		lip->li_flags &= ~XFS_LI_IN_AIL;
 		lip->li_lsn = 0;
-- 
cgit 


From d123031a5673cd38a85ce66cc07243dfe5f424c9 Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Fri, 1 Nov 2013 15:27:19 +1100
Subject: xfs: add tracepoints to AGF/AGI read operations

To help track down AGI/AGF lock ordering issues, I added these
tracepoints to tell us when an AGI or AGF is read and locked.  With
these we can now determine if the lock ordering goes wrong from
tracing captures.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_alloc.c  |  5 ++++-
 fs/xfs/xfs_ialloc.c |  6 +++++-
 fs/xfs/xfs_trace.h  | 25 +++++++++++++++++++++++++
 3 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c
index bcf16528bac5..9eab2dfdcbb5 100644
--- a/fs/xfs/xfs_alloc.c
+++ b/fs/xfs/xfs_alloc.c
@@ -2294,6 +2294,8 @@ xfs_read_agf(
 {
 	int		error;
 
+	trace_xfs_read_agf(mp, agno);
+
 	ASSERT(agno != NULLAGNUMBER);
 	error = xfs_trans_read_buf(
 			mp, tp, mp->m_ddev_targp,
@@ -2324,8 +2326,9 @@ xfs_alloc_read_agf(
 	struct xfs_perag	*pag;		/* per allocation group data */
 	int			error;
 
-	ASSERT(agno != NULLAGNUMBER);
+	trace_xfs_alloc_read_agf(mp, agno);
 
+	ASSERT(agno != NULLAGNUMBER);
 	error = xfs_read_agf(mp, tp, agno,
 			(flags & XFS_ALLOC_FLAG_TRYLOCK) ? XBF_TRYLOCK : 0,
 			bpp);
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index 14d732f61a41..e87719c5bebe 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -40,6 +40,7 @@
 #include "xfs_icreate_item.h"
 #include "xfs_icache.h"
 #include "xfs_dinode.h"
+#include "xfs_trace.h"
 
 
 /*
@@ -1627,8 +1628,9 @@ xfs_read_agi(
 {
 	int			error;
 
-	ASSERT(agno != NULLAGNUMBER);
+	trace_xfs_read_agi(mp, agno);
 
+	ASSERT(agno != NULLAGNUMBER);
 	error = xfs_trans_read_buf(mp, tp, mp->m_ddev_targp,
 			XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp)),
 			XFS_FSS_TO_BB(mp, 1), 0, bpp, &xfs_agi_buf_ops);
@@ -1651,6 +1653,8 @@ xfs_ialloc_read_agi(
 	struct xfs_perag	*pag;	/* per allocation group data */
 	int			error;
 
+	trace_xfs_ialloc_read_agi(mp, agno);
+
 	error = xfs_read_agi(mp, tp, agno, bpp);
 	if (error)
 		return error;
diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h
index f195476a037c..425dfa45b9a0 100644
--- a/fs/xfs/xfs_trace.h
+++ b/fs/xfs/xfs_trace.h
@@ -135,6 +135,31 @@ DEFINE_PERAG_REF_EVENT(xfs_perag_clear_reclaim);
 DEFINE_PERAG_REF_EVENT(xfs_perag_set_eofblocks);
 DEFINE_PERAG_REF_EVENT(xfs_perag_clear_eofblocks);
 
+DECLARE_EVENT_CLASS(xfs_ag_class,
+	TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno),
+	TP_ARGS(mp, agno),
+	TP_STRUCT__entry(
+		__field(dev_t, dev)
+		__field(xfs_agnumber_t, agno)
+	),
+	TP_fast_assign(
+		__entry->dev = mp->m_super->s_dev;
+		__entry->agno = agno;
+	),
+	TP_printk("dev %d:%d agno %u",
+		  MAJOR(__entry->dev), MINOR(__entry->dev),
+		  __entry->agno)
+);
+#define DEFINE_AG_EVENT(name)	\
+DEFINE_EVENT(xfs_ag_class, name,	\
+	TP_PROTO(struct xfs_mount *mp, xfs_agnumber_t agno),	\
+	TP_ARGS(mp, agno))
+
+DEFINE_AG_EVENT(xfs_read_agf);
+DEFINE_AG_EVENT(xfs_alloc_read_agf);
+DEFINE_AG_EVENT(xfs_read_agi);
+DEFINE_AG_EVENT(xfs_ialloc_read_agi);
+
 TRACE_EVENT(xfs_attr_list_node_descend,
 	TP_PROTO(struct xfs_attr_list_context *ctx,
 		 struct xfs_da_node_entry *btree),
-- 
cgit 


From 3820b4d2789f5166afdb136bb14f93166e6cfbc2 Mon Sep 17 00:00:00 2001
From: "David A. Long" <dave.long@linaro.org>
Date: Tue, 15 Oct 2013 17:04:16 -0400
Subject: uprobes: Move function declarations out of arch

Move the function declarations from the arch headers to the common
header, since only the function bodies are architecture-specific.
These changes are from Vincent Rabin's uprobes patch.

[ oleg: update arch/powerpc/include/asm/uprobes.h ]

Signed-off-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: David A. Long <dave.long@linaro.org>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
---
 arch/powerpc/include/asm/uprobes.h | 7 -------
 arch/x86/include/asm/uprobes.h     | 7 -------
 include/linux/uprobes.h            | 8 ++++++++
 3 files changed, 8 insertions(+), 14 deletions(-)

diff --git a/arch/powerpc/include/asm/uprobes.h b/arch/powerpc/include/asm/uprobes.h
index 23016020915e..b6fc3178372a 100644
--- a/arch/powerpc/include/asm/uprobes.h
+++ b/arch/powerpc/include/asm/uprobes.h
@@ -45,11 +45,4 @@ struct arch_uprobe_task {
 	unsigned long	saved_trap_nr;
 };
 
-extern int  arch_uprobe_analyze_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long addr);
-extern int  arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs);
-extern int  arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs);
-extern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk);
-extern int  arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val, void *data);
-extern void arch_uprobe_abort_xol(struct arch_uprobe *aup, struct pt_regs *regs);
-extern unsigned long arch_uretprobe_hijack_return_addr(unsigned long trampoline_vaddr, struct pt_regs *regs);
 #endif	/* _ASM_UPROBES_H */
diff --git a/arch/x86/include/asm/uprobes.h b/arch/x86/include/asm/uprobes.h
index 6e5197910fd8..b20b4d68b934 100644
--- a/arch/x86/include/asm/uprobes.h
+++ b/arch/x86/include/asm/uprobes.h
@@ -49,11 +49,4 @@ struct arch_uprobe_task {
 	unsigned int			saved_tf;
 };
 
-extern int  arch_uprobe_analyze_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long addr);
-extern int  arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs);
-extern int  arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs);
-extern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk);
-extern int  arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val, void *data);
-extern void arch_uprobe_abort_xol(struct arch_uprobe *aup, struct pt_regs *regs);
-extern unsigned long arch_uretprobe_hijack_return_addr(unsigned long trampoline_vaddr, struct pt_regs *regs);
 #endif	/* _ASM_UPROBES_H */
diff --git a/include/linux/uprobes.h b/include/linux/uprobes.h
index 9e0d5a6fe7a8..28473e3f6068 100644
--- a/include/linux/uprobes.h
+++ b/include/linux/uprobes.h
@@ -30,6 +30,7 @@
 struct vm_area_struct;
 struct mm_struct;
 struct inode;
+struct notifier_block;
 
 #ifdef CONFIG_ARCH_SUPPORTS_UPROBES
 # include <asm/uprobes.h>
@@ -125,6 +126,13 @@ extern void uprobe_notify_resume(struct pt_regs *regs);
 extern bool uprobe_deny_signal(void);
 extern bool arch_uprobe_skip_sstep(struct arch_uprobe *aup, struct pt_regs *regs);
 extern void uprobe_clear_state(struct mm_struct *mm);
+extern int  arch_uprobe_analyze_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long addr);
+extern int  arch_uprobe_pre_xol(struct arch_uprobe *aup, struct pt_regs *regs);
+extern int  arch_uprobe_post_xol(struct arch_uprobe *aup, struct pt_regs *regs);
+extern bool arch_uprobe_xol_was_trapped(struct task_struct *tsk);
+extern int  arch_uprobe_exception_notify(struct notifier_block *self, unsigned long val, void *data);
+extern void arch_uprobe_abort_xol(struct arch_uprobe *aup, struct pt_regs *regs);
+extern unsigned long arch_uretprobe_hijack_return_addr(unsigned long trampoline_vaddr, struct pt_regs *regs);
 #else /* !CONFIG_UPROBES */
 struct uprobes_state {
 };
-- 
cgit 


From 736e89d9f782a7dd9a38ecda13b2db916fa72f33 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Thu, 31 Oct 2013 19:28:22 +0100
Subject: uprobes: Kill module_init() and module_exit()

Turn module_init() into __initcall() and kill module_exit().

This code can't be compiled as a module so these module_*()
calls only add the confusion, especially if arch-dependant
code needs its own initialization hooks.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
---
 kernel/events/uprobes.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index ae9e1d2ef256..0012c8ebb098 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -1941,9 +1941,4 @@ static int __init init_uprobes(void)
 
 	return register_die_notifier(&uprobe_exception_nb);
 }
-module_init(init_uprobes);
-
-static void __exit exit_uprobes(void)
-{
-}
-module_exit(exit_uprobes);
+__initcall(init_uprobes);
-- 
cgit 


From 8a8de66c4f6ebd0f6d3da026ec24339aa5d1db12 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Mon, 4 Nov 2013 20:27:13 +0100
Subject: uprobes: Introduce arch_uprobe->ixol

Currently xol_get_insn_slot() assumes that we should simply copy
arch_uprobe->insn[] which is (ignoring arch_uprobe_analyze_insn)
just the copy of the original insn.

This is not true for arm which needs to create another insn to
execute it out-of-line.

So this patch simply adds the new member, ->ixol into the union.
This doesn't make any difference for x86 and powerpc, but arm
can divorce insn/ixol and initialize the correct xol insn in
arch_uprobe_analyze_insn().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
---
 arch/powerpc/include/asm/uprobes.h | 1 +
 arch/x86/include/asm/uprobes.h     | 5 ++++-
 kernel/events/uprobes.c            | 3 ++-
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/include/asm/uprobes.h b/arch/powerpc/include/asm/uprobes.h
index b6fc3178372a..75c6ecdb8f37 100644
--- a/arch/powerpc/include/asm/uprobes.h
+++ b/arch/powerpc/include/asm/uprobes.h
@@ -37,6 +37,7 @@ typedef ppc_opcode_t uprobe_opcode_t;
 struct arch_uprobe {
 	union {
 		u8	insn[MAX_UINSN_BYTES];
+		u8	ixol[MAX_UINSN_BYTES];
 		u32	ainsn;
 	};
 };
diff --git a/arch/x86/include/asm/uprobes.h b/arch/x86/include/asm/uprobes.h
index b20b4d68b934..3087ea9c5f2e 100644
--- a/arch/x86/include/asm/uprobes.h
+++ b/arch/x86/include/asm/uprobes.h
@@ -35,7 +35,10 @@ typedef u8 uprobe_opcode_t;
 
 struct arch_uprobe {
 	u16				fixups;
-	u8				insn[MAX_UINSN_BYTES];
+	union {
+		u8			insn[MAX_UINSN_BYTES];
+		u8			ixol[MAX_UINSN_BYTES];
+	};
 #ifdef CONFIG_X86_64
 	unsigned long			rip_rela_target_address;
 #endif
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 0012c8ebb098..fbcff61b5099 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -1264,7 +1264,8 @@ static unsigned long xol_get_insn_slot(struct uprobe *uprobe)
 		return 0;
 
 	/* Initialize the slot */
-	copy_to_page(area->page, xol_vaddr, uprobe->arch.insn, MAX_UINSN_BYTES);
+	copy_to_page(area->page, xol_vaddr,
+			uprobe->arch.ixol, sizeof(uprobe->arch.ixol));
 	/*
 	 * We probably need flush_icache_user_range() but it needs vma.
 	 * This should work on supported architectures too.
-- 
cgit 


From f72d41fa902fb19a9b63028202a400b0ce497491 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Tue, 5 Nov 2013 19:50:39 +0100
Subject: uprobes: Export write_opcode() as uprobe_write_opcode()

set_swbp() and set_orig_insn() are __weak, but this is pointless
because write_opcode() is static.

Export write_opcode() as uprobe_write_opcode() for the upcoming
arm port, this way it can actually override set_swbp() and use
__opcode_to_mem_arm(bpinsn) instead if UPROBE_SWBP_INSN.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
---
 include/linux/uprobes.h |  1 +
 kernel/events/uprobes.c | 14 +++++++-------
 2 files changed, 8 insertions(+), 7 deletions(-)

diff --git a/include/linux/uprobes.h b/include/linux/uprobes.h
index 28473e3f6068..319eae70fe84 100644
--- a/include/linux/uprobes.h
+++ b/include/linux/uprobes.h
@@ -109,6 +109,7 @@ extern int __weak set_swbp(struct arch_uprobe *aup, struct mm_struct *mm, unsign
 extern int __weak set_orig_insn(struct arch_uprobe *aup, struct mm_struct *mm, unsigned long vaddr);
 extern bool __weak is_swbp_insn(uprobe_opcode_t *insn);
 extern bool __weak is_trap_insn(uprobe_opcode_t *insn);
+extern int uprobe_write_opcode(struct mm_struct *mm, unsigned long vaddr, uprobe_opcode_t);
 extern int uprobe_register(struct inode *inode, loff_t offset, struct uprobe_consumer *uc);
 extern int uprobe_apply(struct inode *inode, loff_t offset, struct uprobe_consumer *uc, bool);
 extern void uprobe_unregister(struct inode *inode, loff_t offset, struct uprobe_consumer *uc);
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index fbcff61b5099..0ac346ae5edb 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -245,12 +245,12 @@ static int verify_opcode(struct page *page, unsigned long vaddr, uprobe_opcode_t
  * the architecture. If an arch has variable length instruction and the
  * breakpoint instruction is not of the smallest length instruction
  * supported by that architecture then we need to modify is_trap_at_addr and
- * write_opcode accordingly. This would never be a problem for archs that
- * have fixed length instructions.
+ * uprobe_write_opcode accordingly. This would never be a problem for archs
+ * that have fixed length instructions.
  */
 
 /*
- * write_opcode - write the opcode at a given virtual address.
+ * uprobe_write_opcode - write the opcode at a given virtual address.
  * @mm: the probed process address space.
  * @vaddr: the virtual address to store the opcode.
  * @opcode: opcode to be written at @vaddr.
@@ -261,7 +261,7 @@ static int verify_opcode(struct page *page, unsigned long vaddr, uprobe_opcode_t
  * For mm @mm, write the opcode at @vaddr.
  * Return 0 (success) or a negative errno.
  */
-static int write_opcode(struct mm_struct *mm, unsigned long vaddr,
+int uprobe_write_opcode(struct mm_struct *mm, unsigned long vaddr,
 			uprobe_opcode_t opcode)
 {
 	struct page *old_page, *new_page;
@@ -315,7 +315,7 @@ put_old:
  */
 int __weak set_swbp(struct arch_uprobe *auprobe, struct mm_struct *mm, unsigned long vaddr)
 {
-	return write_opcode(mm, vaddr, UPROBE_SWBP_INSN);
+	return uprobe_write_opcode(mm, vaddr, UPROBE_SWBP_INSN);
 }
 
 /**
@@ -330,7 +330,7 @@ int __weak set_swbp(struct arch_uprobe *auprobe, struct mm_struct *mm, unsigned
 int __weak
 set_orig_insn(struct arch_uprobe *auprobe, struct mm_struct *mm, unsigned long vaddr)
 {
-	return write_opcode(mm, vaddr, *(uprobe_opcode_t *)auprobe->insn);
+	return uprobe_write_opcode(mm, vaddr, *(uprobe_opcode_t *)auprobe->insn);
 }
 
 static int match_uprobe(struct uprobe *l, struct uprobe *r)
@@ -577,7 +577,7 @@ static int prepare_uprobe(struct uprobe *uprobe, struct file *file,
 	if (ret)
 		goto out;
 
-	/* write_opcode() assumes we don't cross page boundary */
+	/* uprobe_write_opcode() assumes we don't cross page boundary */
 	BUG_ON((uprobe->offset & ~PAGE_MASK) +
 			UPROBE_SWBP_INSN_SIZE > PAGE_SIZE);
 
-- 
cgit 


From 12ae030d54ef250706da5642fc7697cc60ad0df7 Mon Sep 17 00:00:00 2001
From: Steven Rostedt <rostedt@goodmis.org>
Date: Tue, 5 Nov 2013 12:51:11 -0500
Subject: perf/ftrace: Fix paranoid level for enabling function tracer

The current default perf paranoid level is "1" which has
"perf_paranoid_kernel()" return false, and giving any operations that
use it, access to normal users. Unfortunately, this includes function
tracing and normal users should not be allowed to enable function
tracing by default.

The proper level is defined at "-1" (full perf access), which
"perf_paranoid_tracepoint_raw()" will only give access to. Use that
check instead for enabling function tracing.

Reported-by: Dave Jones <davej@redhat.com>
Reported-by: Vince Weaver <vincent.weaver@maine.edu>
Tested-by: Vince Weaver <vincent.weaver@maine.edu>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: stable@vger.kernel.org # 3.4+
CVE: CVE-2013-2930
Fixes: ced39002f5ea ("ftrace, perf: Add support to use function tracepoint in perf")
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/trace_event_perf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/trace_event_perf.c b/kernel/trace/trace_event_perf.c
index 80c36bcf66e8..78e27e3b52ac 100644
--- a/kernel/trace/trace_event_perf.c
+++ b/kernel/trace/trace_event_perf.c
@@ -26,7 +26,7 @@ static int perf_trace_event_perm(struct ftrace_event_call *tp_event,
 {
 	/* The ftrace function trace is allowed only for root. */
 	if (ftrace_event_is_function(tp_event) &&
-	    perf_paranoid_kernel() && !capable(CAP_SYS_ADMIN))
+	    perf_paranoid_tracepoint_raw() && !capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
 	/* No tracing, just counting, so no obvious leak */
-- 
cgit 


From d6d3523caab75196560c85aae80cb8f4a8e380ea Mon Sep 17 00:00:00 2001
From: "Geyslan G. Bem" <geyslan@gmail.com>
Date: Wed, 6 Nov 2013 16:02:51 -0300
Subject: tracing: Do not assign filp->private_data to freed memory

In system_tr_open(), the filp->private_data can be assigned the 'dir'
variable even if it was freed. This is on the error path, and is
harmless because the error return code will prevent filp->private_data
from being used. But for correctness, we should not assign it to
a recently freed variable, as that can cause static tools to give
false warnings.

Also have both subsystem_open() and system_tr_open() return -ENODEV
if tracing has been disabled.

Link: http://lkml.kernel.org/r/1383764571-7318-1-git-send-email-geyslan@gmail.com

Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/trace_events.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 043f833246a0..f919a2e21bf3 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -1062,6 +1062,9 @@ static int subsystem_open(struct inode *inode, struct file *filp)
 	struct trace_array *tr;
 	int ret;
 
+	if (tracing_is_disabled())
+		return -ENODEV;
+
 	/* Make sure the system still exists */
 	mutex_lock(&trace_types_lock);
 	mutex_lock(&event_mutex);
@@ -1108,6 +1111,9 @@ static int system_tr_open(struct inode *inode, struct file *filp)
 	struct trace_array *tr = inode->i_private;
 	int ret;
 
+	if (tracing_is_disabled())
+		return -ENODEV;
+
 	if (trace_array_get(tr) < 0)
 		return -ENODEV;
 
@@ -1124,11 +1130,12 @@ static int system_tr_open(struct inode *inode, struct file *filp)
 	if (ret < 0) {
 		trace_array_put(tr);
 		kfree(dir);
+		return ret;
 	}
 
 	filp->private_data = dir;
 
-	return ret;
+	return 0;
 }
 
 static int subsystem_release(struct inode *inode, struct file *file)
-- 
cgit 


From 042b10d83d05174e50ee861ee3aca55fd6204324 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Wed, 6 Nov 2013 12:19:37 -0500
Subject: tracing: Remove unused function ftrace_off_permanent()

In the past, ftrace_off_permanent() was called if something
strange was detected. But the ftrace_bug() now handles all the
anomolies that can happen with ftrace (function tracing), and there
are no uses of ftrace_off_permanent(). Get rid of it.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 include/linux/kernel.h |  2 --
 kernel/trace/trace.c   | 15 ---------------
 2 files changed, 17 deletions(-)

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 672ddc4de4af..d4e98d13eff4 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -501,7 +501,6 @@ void tracing_snapshot_alloc(void);
 
 extern void tracing_start(void);
 extern void tracing_stop(void);
-extern void ftrace_off_permanent(void);
 
 static inline __printf(1, 2)
 void ____trace_printk_check_format(const char *fmt, ...)
@@ -639,7 +638,6 @@ extern void ftrace_dump(enum ftrace_dump_mode oops_dump_mode);
 #else
 static inline void tracing_start(void) { }
 static inline void tracing_stop(void) { }
-static inline void ftrace_off_permanent(void) { }
 static inline void trace_dump_stack(int skip) { }
 
 static inline void tracing_on(void) { }
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 2a595cf14f1c..d72a15c0b32c 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -1283,21 +1283,6 @@ int is_tracing_stopped(void)
 	return global_trace.stop_count;
 }
 
-/**
- * ftrace_off_permanent - disable all ftrace code permanently
- *
- * This should only be called when a serious anomally has
- * been detected.  This will turn off the function tracing,
- * ring buffers, and other tracing utilites. It takes no
- * locks and can be called from any context.
- */
-void ftrace_off_permanent(void)
-{
-	tracing_disabled = 1;
-	ftrace_stop();
-	tracing_off_permanent();
-}
-
 /**
  * tracing_start - quick start of the tracer
  *
-- 
cgit 


From 6fc84ea70eae478099c866ace022ecfdef998032 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Wed, 6 Nov 2013 14:50:06 -0500
Subject: tracing: Do not use signed enums with unsigned long long in fgragh
 output

The duration field of print_graph_duration() can also be used
to do the space filling by passing an enum in it:

  DURATION_FILL_FULL
  DURATION_FILL_START
  DURATION_FILL_END

The problem is that these are enums and defined as negative,
but the duration field is unsigned long long. Most archs are
fine with this but blackfin fails to compile because of it:

kernel/built-in.o: In function `print_graph_duration':
kernel/trace/trace_functions_graph.c:782: undefined reference to `__ucmpdi2'

Overloading a unsigned long long with an signed enum is just
bad in principle. We can accomplish the same thing by using
part of the flags field instead.

Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/trace.h                 |  2 ++
 kernel/trace/trace_functions_graph.c | 22 +++++++++++-----------
 2 files changed, 13 insertions(+), 11 deletions(-)

diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 4388e16484f1..11a04d6eaa23 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -712,6 +712,8 @@ extern unsigned long trace_flags;
 #define TRACE_GRAPH_PRINT_PROC          0x8
 #define TRACE_GRAPH_PRINT_DURATION      0x10
 #define TRACE_GRAPH_PRINT_ABS_TIME      0x20
+#define TRACE_GRAPH_PRINT_FILL_SHIFT	28
+#define TRACE_GRAPH_PRINT_FILL_MASK	(0x3 << TRACE_GRAPH_PRINT_FILL_SHIFT)
 
 extern enum print_line_t
 print_graph_function_flags(struct trace_iterator *iter, u32 flags);
diff --git a/kernel/trace/trace_functions_graph.c b/kernel/trace/trace_functions_graph.c
index 80387d1d27e1..0b99120d395c 100644
--- a/kernel/trace/trace_functions_graph.c
+++ b/kernel/trace/trace_functions_graph.c
@@ -82,9 +82,9 @@ static struct trace_array *graph_array;
  * to fill in space into DURATION column.
  */
 enum {
-	DURATION_FILL_FULL  = -1,
-	DURATION_FILL_START = -2,
-	DURATION_FILL_END   = -3,
+	FLAGS_FILL_FULL  = 1 << TRACE_GRAPH_PRINT_FILL_SHIFT,
+	FLAGS_FILL_START = 2 << TRACE_GRAPH_PRINT_FILL_SHIFT,
+	FLAGS_FILL_END   = 3 << TRACE_GRAPH_PRINT_FILL_SHIFT,
 };
 
 static enum print_line_t
@@ -702,7 +702,7 @@ print_graph_irq(struct trace_iterator *iter, unsigned long addr,
 	}
 
 	/* No overhead */
-	ret = print_graph_duration(DURATION_FILL_START, s, flags);
+	ret = print_graph_duration(0, s, flags | FLAGS_FILL_START);
 	if (ret != TRACE_TYPE_HANDLED)
 		return ret;
 
@@ -714,7 +714,7 @@ print_graph_irq(struct trace_iterator *iter, unsigned long addr,
 	if (!ret)
 		return TRACE_TYPE_PARTIAL_LINE;
 
-	ret = print_graph_duration(DURATION_FILL_END, s, flags);
+	ret = print_graph_duration(0, s, flags | FLAGS_FILL_END);
 	if (ret != TRACE_TYPE_HANDLED)
 		return ret;
 
@@ -779,14 +779,14 @@ print_graph_duration(unsigned long long duration, struct trace_seq *s,
 			return TRACE_TYPE_HANDLED;
 
 	/* No real adata, just filling the column with spaces */
-	switch (duration) {
-	case DURATION_FILL_FULL:
+	switch (flags & TRACE_GRAPH_PRINT_FILL_MASK) {
+	case FLAGS_FILL_FULL:
 		ret = trace_seq_puts(s, "              |  ");
 		return ret ? TRACE_TYPE_HANDLED : TRACE_TYPE_PARTIAL_LINE;
-	case DURATION_FILL_START:
+	case FLAGS_FILL_START:
 		ret = trace_seq_puts(s, "  ");
 		return ret ? TRACE_TYPE_HANDLED : TRACE_TYPE_PARTIAL_LINE;
-	case DURATION_FILL_END:
+	case FLAGS_FILL_END:
 		ret = trace_seq_puts(s, " |");
 		return ret ? TRACE_TYPE_HANDLED : TRACE_TYPE_PARTIAL_LINE;
 	}
@@ -902,7 +902,7 @@ print_graph_entry_nested(struct trace_iterator *iter,
 	}
 
 	/* No time */
-	ret = print_graph_duration(DURATION_FILL_FULL, s, flags);
+	ret = print_graph_duration(0, s, flags | FLAGS_FILL_FULL);
 	if (ret != TRACE_TYPE_HANDLED)
 		return ret;
 
@@ -1222,7 +1222,7 @@ print_graph_comment(struct trace_seq *s, struct trace_entry *ent,
 		return TRACE_TYPE_PARTIAL_LINE;
 
 	/* No time */
-	ret = print_graph_duration(DURATION_FILL_FULL, s, flags);
+	ret = print_graph_duration(0, s, flags | FLAGS_FILL_FULL);
 	if (ret != TRACE_TYPE_HANDLED)
 		return ret;
 
-- 
cgit 


From 9d71cee66725a0a1333f02f315c06cc42f07650e Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sat, 7 Sep 2013 08:46:49 +0200
Subject: x86/xen: remove deprecated IRQF_DISABLED

This patch proposes to remove the IRQF_DISABLED flag from x86/xen
code. It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
 arch/x86/xen/smp.c      | 10 +++++-----
 arch/x86/xen/spinlock.c |  2 +-
 arch/x86/xen/time.c     |  3 +--
 3 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index d1e4777b4e75..48b57182dbb6 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -149,7 +149,7 @@ static int xen_smp_intr_init(unsigned int cpu)
 	rc = bind_ipi_to_irqhandler(XEN_RESCHEDULE_VECTOR,
 				    cpu,
 				    xen_reschedule_interrupt,
-				    IRQF_DISABLED|IRQF_PERCPU|IRQF_NOBALANCING,
+				    IRQF_PERCPU|IRQF_NOBALANCING,
 				    resched_name,
 				    NULL);
 	if (rc < 0)
@@ -161,7 +161,7 @@ static int xen_smp_intr_init(unsigned int cpu)
 	rc = bind_ipi_to_irqhandler(XEN_CALL_FUNCTION_VECTOR,
 				    cpu,
 				    xen_call_function_interrupt,
-				    IRQF_DISABLED|IRQF_PERCPU|IRQF_NOBALANCING,
+				    IRQF_PERCPU|IRQF_NOBALANCING,
 				    callfunc_name,
 				    NULL);
 	if (rc < 0)
@@ -171,7 +171,7 @@ static int xen_smp_intr_init(unsigned int cpu)
 
 	debug_name = kasprintf(GFP_KERNEL, "debug%d", cpu);
 	rc = bind_virq_to_irqhandler(VIRQ_DEBUG, cpu, xen_debug_interrupt,
-				     IRQF_DISABLED | IRQF_PERCPU | IRQF_NOBALANCING,
+				     IRQF_PERCPU | IRQF_NOBALANCING,
 				     debug_name, NULL);
 	if (rc < 0)
 		goto fail;
@@ -182,7 +182,7 @@ static int xen_smp_intr_init(unsigned int cpu)
 	rc = bind_ipi_to_irqhandler(XEN_CALL_FUNCTION_SINGLE_VECTOR,
 				    cpu,
 				    xen_call_function_single_interrupt,
-				    IRQF_DISABLED|IRQF_PERCPU|IRQF_NOBALANCING,
+				    IRQF_PERCPU|IRQF_NOBALANCING,
 				    callfunc_name,
 				    NULL);
 	if (rc < 0)
@@ -201,7 +201,7 @@ static int xen_smp_intr_init(unsigned int cpu)
 	rc = bind_ipi_to_irqhandler(XEN_IRQ_WORK_VECTOR,
 				    cpu,
 				    xen_irq_work_interrupt,
-				    IRQF_DISABLED|IRQF_PERCPU|IRQF_NOBALANCING,
+				    IRQF_PERCPU|IRQF_NOBALANCING,
 				    callfunc_name,
 				    NULL);
 	if (rc < 0)
diff --git a/arch/x86/xen/spinlock.c b/arch/x86/xen/spinlock.c
index be6b86078957..0e36cde12f7e 100644
--- a/arch/x86/xen/spinlock.c
+++ b/arch/x86/xen/spinlock.c
@@ -234,7 +234,7 @@ void xen_init_lock_cpu(int cpu)
 	irq = bind_ipi_to_irqhandler(XEN_SPIN_UNLOCK_VECTOR,
 				     cpu,
 				     dummy_handler,
-				     IRQF_DISABLED|IRQF_PERCPU|IRQF_NOBALANCING,
+				     IRQF_PERCPU|IRQF_NOBALANCING,
 				     name,
 				     NULL);
 
diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c
index ee365895b06b..12a1ca707b94 100644
--- a/arch/x86/xen/time.c
+++ b/arch/x86/xen/time.c
@@ -443,8 +443,7 @@ void xen_setup_timer(int cpu)
 		name = "<timer kasprintf failed>";
 
 	irq = bind_virq_to_irqhandler(VIRQ_TIMER, cpu, xen_timer_interrupt,
-				      IRQF_DISABLED|IRQF_PERCPU|
-				      IRQF_NOBALANCING|IRQF_TIMER|
+				      IRQF_PERCPU|IRQF_NOBALANCING|IRQF_TIMER|
 				      IRQF_FORCE_RESUME,
 				      name, NULL);
 
-- 
cgit 


From af09d1a73aed4e83ee095f2dabdc09386e31f2ea Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Mon, 9 Sep 2013 05:09:47 +0200
Subject: xen: remove deprecated IRQF_DISABLED

This patch proposes to remove the IRQF_DISABLED flag from drivers/xen
code. It's a NOOP since 2.6.35 and it will be removed one day.

Note that architecture dependent fixes for IRQF_DISABLED
were already submitted through separate patches.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
 drivers/xen/evtchn.c       | 2 +-
 drivers/xen/platform-pci.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/xen/evtchn.c b/drivers/xen/evtchn.c
index 8b3a69a06c39..5de2063e16d3 100644
--- a/drivers/xen/evtchn.c
+++ b/drivers/xen/evtchn.c
@@ -305,7 +305,7 @@ static int evtchn_bind_to_user(struct per_user_data *u, int port)
 	if (rc < 0)
 		goto err;
 
-	rc = bind_evtchn_to_irqhandler(port, evtchn_interrupt, IRQF_DISABLED,
+	rc = bind_evtchn_to_irqhandler(port, evtchn_interrupt, 0,
 				       u->name, evtchn);
 	if (rc < 0)
 		goto err;
diff --git a/drivers/xen/platform-pci.c b/drivers/xen/platform-pci.c
index 99db9e1eb8ba..2f3528e93cb9 100644
--- a/drivers/xen/platform-pci.c
+++ b/drivers/xen/platform-pci.c
@@ -84,7 +84,7 @@ static irqreturn_t do_hvm_evtchn_intr(int irq, void *dev_id)
 static int xen_allocate_irq(struct pci_dev *pdev)
 {
 	return request_irq(pdev->irq, do_hvm_evtchn_intr,
-			IRQF_DISABLED | IRQF_NOBALANCING | IRQF_TRIGGER_RISING,
+			IRQF_NOBALANCING | IRQF_TRIGGER_RISING,
 			"xen-platform-pci", pdev);
 }
 
-- 
cgit 


From 95b60f078899a9680688bab909d02169e1fd632e Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Tue, 5 Nov 2013 13:16:12 -0800
Subject: ib_isert: Add support for completion interrupt coalescing

This patch adds support for completion interrupt coalescing that
allows only every ISERT_COMP_BATCH_COUNT (8) to set IB_SEND_SIGNALED,
thus avoiding completion interrupts for every posted iser_tx_desc.

The batch processing is done using a per isert_conn llist that once
IB_SEND_SIGNALED has been set is saved to tx_desc->comp_llnode_batch,
and completion processing of previously posted iser_tx_descs is done
in a single shot from within isert_send_completion() code.

Note this is only done for response PDUs from ISCSI_OP_SCSI_CMD, and
all other control type of PDU responses will force an implicit batch
drain to occur.

Cc: Or Gerlitz <ogerlitz@mellanox.com>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Kent Overstreet <kmo@daterainc.com>
Cc: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/infiniband/ulp/isert/ib_isert.c | 63 ++++++++++++++++++++++++++-------
 drivers/infiniband/ulp/isert/ib_isert.h |  6 ++++
 2 files changed, 57 insertions(+), 12 deletions(-)

diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index 3591855cc5b5..27708c3430d5 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -22,6 +22,7 @@
 #include <linux/socket.h>
 #include <linux/in.h>
 #include <linux/in6.h>
+#include <linux/llist.h>
 #include <rdma/ib_verbs.h>
 #include <rdma/rdma_cm.h>
 #include <target/target_core_base.h>
@@ -489,6 +490,7 @@ isert_connect_request(struct rdma_cm_id *cma_id, struct rdma_cm_event *event)
 	kref_init(&isert_conn->conn_kref);
 	kref_get(&isert_conn->conn_kref);
 	mutex_init(&isert_conn->conn_mutex);
+	mutex_init(&isert_conn->conn_comp_mutex);
 	spin_lock_init(&isert_conn->conn_lock);
 
 	cma_id->context = isert_conn;
@@ -843,14 +845,32 @@ isert_init_tx_hdrs(struct isert_conn *isert_conn,
 }
 
 static void
-isert_init_send_wr(struct isert_cmd *isert_cmd, struct ib_send_wr *send_wr)
+isert_init_send_wr(struct isert_conn *isert_conn, struct isert_cmd *isert_cmd,
+		   struct ib_send_wr *send_wr, bool coalesce)
 {
+	struct iser_tx_desc *tx_desc = &isert_cmd->tx_desc;
+
 	isert_cmd->rdma_wr.iser_ib_op = ISER_IB_SEND;
 	send_wr->wr_id = (unsigned long)&isert_cmd->tx_desc;
 	send_wr->opcode = IB_WR_SEND;
-	send_wr->send_flags = IB_SEND_SIGNALED;
-	send_wr->sg_list = &isert_cmd->tx_desc.tx_sg[0];
+	send_wr->sg_list = &tx_desc->tx_sg[0];
 	send_wr->num_sge = isert_cmd->tx_desc.num_sge;
+	/*
+	 * Coalesce send completion interrupts by only setting IB_SEND_SIGNALED
+	 * bit for every ISERT_COMP_BATCH_COUNT number of ib_post_send() calls.
+	 */
+	mutex_lock(&isert_conn->conn_comp_mutex);
+	if (coalesce &&
+	    ++isert_conn->conn_comp_batch < ISERT_COMP_BATCH_COUNT) {
+		llist_add(&tx_desc->comp_llnode, &isert_conn->conn_comp_llist);
+		mutex_unlock(&isert_conn->conn_comp_mutex);
+		return;
+	}
+	isert_conn->conn_comp_batch = 0;
+	tx_desc->comp_llnode_batch = llist_del_all(&isert_conn->conn_comp_llist);
+	mutex_unlock(&isert_conn->conn_comp_mutex);
+
+	send_wr->send_flags = IB_SEND_SIGNALED;
 }
 
 static int
@@ -1582,8 +1602,8 @@ isert_response_completion(struct iser_tx_desc *tx_desc,
 }
 
 static void
-isert_send_completion(struct iser_tx_desc *tx_desc,
-		      struct isert_conn *isert_conn)
+__isert_send_completion(struct iser_tx_desc *tx_desc,
+		        struct isert_conn *isert_conn)
 {
 	struct ib_device *ib_dev = isert_conn->conn_cm_id->device;
 	struct isert_cmd *isert_cmd = tx_desc->isert_cmd;
@@ -1623,6 +1643,24 @@ isert_send_completion(struct iser_tx_desc *tx_desc,
 	}
 }
 
+static void
+isert_send_completion(struct iser_tx_desc *tx_desc,
+		      struct isert_conn *isert_conn)
+{
+	struct llist_node *llnode = tx_desc->comp_llnode_batch;
+	struct iser_tx_desc *t;
+	/*
+	 * Drain coalesced completion llist starting from comp_llnode_batch
+	 * setup in isert_init_send_wr(), and then complete trailing tx_desc.
+	 */
+	while (llnode) {
+		t = llist_entry(llnode, struct iser_tx_desc, comp_llnode);
+		llnode = llist_next(llnode);
+		__isert_send_completion(t, isert_conn);
+	}
+	__isert_send_completion(tx_desc, isert_conn);
+}
+
 static void
 isert_cq_comp_err(struct iser_tx_desc *tx_desc, struct isert_conn *isert_conn)
 {
@@ -1793,7 +1831,7 @@ isert_put_response(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
 		isert_cmd->tx_desc.num_sge = 2;
 	}
 
-	isert_init_send_wr(isert_cmd, send_wr);
+	isert_init_send_wr(isert_conn, isert_cmd, send_wr, true);
 
 	pr_debug("Posting SCSI Response IB_WR_SEND >>>>>>>>>>>>>>>>>>>>>>\n");
 
@@ -1813,7 +1851,7 @@ isert_put_nopin(struct iscsi_cmd *cmd, struct iscsi_conn *conn,
 			       &isert_cmd->tx_desc.iscsi_header,
 			       nopout_response);
 	isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc);
-	isert_init_send_wr(isert_cmd, send_wr);
+	isert_init_send_wr(isert_conn, isert_cmd, send_wr, false);
 
 	pr_debug("Posting NOPIN Response IB_WR_SEND >>>>>>>>>>>>>>>>>>>>>>\n");
 
@@ -1831,7 +1869,7 @@ isert_put_logout_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
 	iscsit_build_logout_rsp(cmd, conn, (struct iscsi_logout_rsp *)
 				&isert_cmd->tx_desc.iscsi_header);
 	isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc);
-	isert_init_send_wr(isert_cmd, send_wr);
+	isert_init_send_wr(isert_conn, isert_cmd, send_wr, false);
 
 	pr_debug("Posting Logout Response IB_WR_SEND >>>>>>>>>>>>>>>>>>>>>>\n");
 
@@ -1849,7 +1887,7 @@ isert_put_tm_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
 	iscsit_build_task_mgt_rsp(cmd, conn, (struct iscsi_tm_rsp *)
 				  &isert_cmd->tx_desc.iscsi_header);
 	isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc);
-	isert_init_send_wr(isert_cmd, send_wr);
+	isert_init_send_wr(isert_conn, isert_cmd, send_wr, false);
 
 	pr_debug("Posting Task Management Response IB_WR_SEND >>>>>>>>>>>>>>>>>>>>>>\n");
 
@@ -1881,7 +1919,7 @@ isert_put_reject(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
 	tx_dsg->lkey	= isert_conn->conn_mr->lkey;
 	isert_cmd->tx_desc.num_sge = 2;
 
-	isert_init_send_wr(isert_cmd, send_wr);
+	isert_init_send_wr(isert_conn, isert_cmd, send_wr, false);
 
 	pr_debug("Posting Reject IB_WR_SEND >>>>>>>>>>>>>>>>>>>>>>\n");
 
@@ -1921,7 +1959,7 @@ isert_put_text_rsp(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
 		tx_dsg->lkey	= isert_conn->conn_mr->lkey;
 		isert_cmd->tx_desc.num_sge = 2;
 	}
-	isert_init_send_wr(isert_cmd, send_wr);
+	isert_init_send_wr(isert_conn, isert_cmd, send_wr, false);
 
 	pr_debug("Posting Text Response IB_WR_SEND >>>>>>>>>>>>>>>>>>>>>>\n");
 
@@ -2309,7 +2347,8 @@ isert_put_datain(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
 	iscsit_build_rsp_pdu(cmd, conn, false, (struct iscsi_scsi_rsp *)
 			     &isert_cmd->tx_desc.iscsi_header);
 	isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc);
-	isert_init_send_wr(isert_cmd, &isert_cmd->tx_desc.send_wr);
+	isert_init_send_wr(isert_conn, isert_cmd,
+			   &isert_cmd->tx_desc.send_wr, true);
 
 	atomic_inc(&isert_conn->post_send_buf_count);
 
diff --git a/drivers/infiniband/ulp/isert/ib_isert.h b/drivers/infiniband/ulp/isert/ib_isert.h
index 631f2090f0b8..691f90ff2d83 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.h
+++ b/drivers/infiniband/ulp/isert/ib_isert.h
@@ -43,6 +43,8 @@ struct iser_tx_desc {
 	struct ib_sge	tx_sg[2];
 	int		num_sge;
 	struct isert_cmd *isert_cmd;
+	struct llist_node *comp_llnode_batch;
+	struct llist_node comp_llnode;
 	struct ib_send_wr send_wr;
 } __packed;
 
@@ -121,6 +123,10 @@ struct isert_conn {
 	int			conn_frwr_pool_size;
 	/* lock to protect frwr_pool */
 	spinlock_t		conn_lock;
+#define ISERT_COMP_BATCH_COUNT	8
+	int			conn_comp_batch;
+	struct llist_head	conn_comp_llist;
+	struct mutex		conn_comp_mutex;
 };
 
 #define ISERT_MAX_CQ 64
-- 
cgit 


From 9645ae84ef52d61bc48732a25e57554fc1a9754a Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Thu, 17 Oct 2013 16:32:01 -0700
Subject: scripts/kernel-doc: make unknown function prototype a Warning instead
 of an Error

When scripts/kernel-doc cannot understand a function prototype,
it had been generating a fatal error and stopping immediately.
Make this a Warning instead of an Error and keep going.

Note that this can happen if the kernel-doc notation that is being
parsed is not actually a function prototype; maybe it's a struct or
something else, so I added "function" to the warning message to try
to make it clearer that scripts/kernel-doc is looking for a function
prototype here.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc:	Mark Brown <broonie@kernel.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/kernel-doc | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 4305b2f2ec5e..16e8b50c8fcb 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -2125,8 +2125,7 @@ sub dump_function($$) {
 
 	create_parameterlist($args, ',', $file);
     } else {
-	print STDERR "Error(${file}:$.): cannot understand prototype: '$prototype'\n";
-	++$errors;
+	print STDERR "Warning(${file}:$.): cannot understand function prototype: '$prototype'\n";
 	return;
     }
 
-- 
cgit 


From eea0e9cbb9e65cd553d302a4aefd4c7b70d9fd90 Mon Sep 17 00:00:00 2001
From: Joe Mario <jmario@redhat.com>
Date: Wed, 23 Oct 2013 15:06:53 +0200
Subject: kbuild: Increase kallsyms max symbol length

[AK: This seems like a ticking time bomb even without LTO,
so should be merged now. It causes very weird problems.
Thanks to Joe for tracking them down.]

With the added postfixes that LTO adds for local
symbols, the longest name in the kernel overflows
the namebuf[KSYM_NAME_LEN] array by two bytes.  That name is:
__pci_fixup_resumePCI_VENDOR_ID_SERVERWORKSPCI_DEVICE_ID_SERVERWORKS_HT1000SBquirk_disable_broadcom_boot_interrupt.1488004.672802

Double the max symbol name length.

v2: Use 255  (Joe Perches)
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 include/linux/kallsyms.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index 6883e197acb9..56488708da4b 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -9,7 +9,7 @@
 #include <linux/kernel.h>
 #include <linux/stddef.h>
 
-#define KSYM_NAME_LEN 128
+#define KSYM_NAME_LEN 255
 #define KSYM_SYMBOL_LEN (sizeof("%s+%#lx/%#lx [%s]") + (KSYM_NAME_LEN - 1) + \
 			 2*(BITS_PER_LONG*3/10) + (MODULE_NAME_LEN - 1) + 1)
 
-- 
cgit 


From f3462aa952cfc8f4b095103cb9b3d306dd216558 Mon Sep 17 00:00:00 2001
From: Andi Kleen <andi@firstfloor.org>
Date: Wed, 23 Oct 2013 15:07:53 +0200
Subject: Kbuild: Handle longer symbols in kallsyms.c

Also warn for too long symbols

v2: Add missing newline. Use 255 max (Joe Perches)
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/kallsyms.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index 487ac6f37ca2..967522ab4f39 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -27,7 +27,7 @@
 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0]))
 #endif
 
-#define KSYM_NAME_LEN		128
+#define KSYM_NAME_LEN		255
 
 struct sym_entry {
 	unsigned long long addr;
@@ -111,6 +111,12 @@ static int read_symbol(FILE *in, struct sym_entry *s)
 			fprintf(stderr, "Read error or end of file.\n");
 		return -1;
 	}
+	if (strlen(str) > KSYM_NAME_LEN) {
+		fprintf(stderr, "Symbol %s too long for kallsyms (%lu vs %d).\n"
+                                "Please increase KSYM_NAME_LEN both in kernel and kallsyms.c\n",
+			str, strlen(str), KSYM_NAME_LEN);
+		return -1;
+	}
 
 	sym = str;
 	/* skip prefix char */
-- 
cgit 


From 21cf6e584ce35b79374581e6344dd7c74f8b4a2b Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Tue, 22 Oct 2013 08:46:23 -0700
Subject: kbuild, bloat-o-meter: fix static detection

Disable static detection: the static currently drops a lot of useful
information including clones generated by gcc. Drop this. The statics
will appear now without static. prefix.

But remove the LTO .NUMBER postfixes that look ugly

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/bloat-o-meter | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/bloat-o-meter b/scripts/bloat-o-meter
index 6129020c41a9..855198c9dedb 100755
--- a/scripts/bloat-o-meter
+++ b/scripts/bloat-o-meter
@@ -20,8 +20,8 @@ def getsizes(file):
         if type in "tTdDbBrR":
             # strip generated symbols
             if name[:6] == "__mod_": continue
-            # function names begin with '.' on 64-bit powerpc
-            if "." in name[1:]: name = "static." + name.split(".")[0]
+            # statics and some other optimizations adds random .NUMBER
+            name = re.sub(r'\.[0-9]+', '', name)
             sym[name] = sym.get(name, 0) + int(size, 16)
     return sym
 
-- 
cgit 


From 849464d1ba97a13b388fee9a69fbbeee175b349c Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Fri, 25 Oct 2013 06:14:43 -0700
Subject: kbuild: replace unbounded sprintf call in modpost

The modpost tool could overflow its stack buffer if someone was running
with an insane shell environment. Regardless, it's technically a bug,
so this fixes it to truncate the string instead of seg-faulting.

Found by Coverity.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/mod/sumversion.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/mod/sumversion.c b/scripts/mod/sumversion.c
index 9dfcd6d988da..deb2994b04c4 100644
--- a/scripts/mod/sumversion.c
+++ b/scripts/mod/sumversion.c
@@ -416,7 +416,7 @@ void get_src_version(const char *modname, char sum[], unsigned sumlen)
 		basename = strrchr(modname, '/') + 1;
 	else
 		basename = modname;
-	sprintf(filelist, "%s/%.*s.mod", modverdir,
+	snprintf(filelist, sizeof(filelist), "%s/%.*s.mod", modverdir,
 		(int) strlen(basename) - 2, basename);
 
 	file = grab_file(filelist, &len);
-- 
cgit 


From e363bbac316ffb5daaf45d855f82680148cafe20 Mon Sep 17 00:00:00 2001
From: Jayachandran C <jchandra@broadcom.com>
Date: Mon, 4 Nov 2013 17:51:54 +0530
Subject: MIPS: Netlogic: replace early_init_devtree() call

The early_init_devtree() API was removed in linux-next for 3.13 with
commit "mips: use early_init_dt_scan". This causes Netlogic XLP compile
to fail:

arch/mips/netlogic/xlp/setup.c:101: undefined reference to `early_init_devtree'

Add xlp_early_init_devtree() which uses the __dt_setup_arch() to
handle early device tree related initialization to fix this.

Signed-off-by: Jayachandran C <jchandra@broadcom.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 arch/mips/include/asm/netlogic/xlp-hal/xlp.h |  1 +
 arch/mips/netlogic/xlp/dt.c                  | 18 ++++++++++++++----
 arch/mips/netlogic/xlp/setup.c               |  2 +-
 3 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/arch/mips/include/asm/netlogic/xlp-hal/xlp.h b/arch/mips/include/asm/netlogic/xlp-hal/xlp.h
index 17daffb280a3..470f2095b346 100644
--- a/arch/mips/include/asm/netlogic/xlp-hal/xlp.h
+++ b/arch/mips/include/asm/netlogic/xlp-hal/xlp.h
@@ -69,6 +69,7 @@ void nlm_hal_init(void);
 int xlp_get_dram_map(int n, uint64_t *dram_map);
 
 /* Device tree related */
+void xlp_early_init_devtree(void);
 void *xlp_dt_init(void *fdtp);
 
 static inline int cpu_is_xlpii(void)
diff --git a/arch/mips/netlogic/xlp/dt.c b/arch/mips/netlogic/xlp/dt.c
index 88df445dda76..8316d5454b17 100644
--- a/arch/mips/netlogic/xlp/dt.c
+++ b/arch/mips/netlogic/xlp/dt.c
@@ -39,8 +39,11 @@
 #include <linux/of_platform.h>
 #include <linux/of_device.h>
 
+#include <asm/prom.h>
+
 extern u32 __dtb_xlp_evp_begin[], __dtb_xlp_svp_begin[],
 	__dtb_xlp_fvp_begin[], __dtb_start[];
+static void *xlp_fdt_blob;
 
 void __init *xlp_dt_init(void *fdtp)
 {
@@ -67,19 +70,26 @@ void __init *xlp_dt_init(void *fdtp)
 			break;
 		}
 	}
-	initial_boot_params = fdtp;
+	xlp_fdt_blob = fdtp;
 	return fdtp;
 }
 
+void __init xlp_early_init_devtree(void)
+{
+	__dt_setup_arch(xlp_fdt_blob);
+	strlcpy(arcs_cmdline, boot_command_line, COMMAND_LINE_SIZE);
+}
+
 void __init device_tree_init(void)
 {
 	unsigned long base, size;
+	struct boot_param_header *fdtp = xlp_fdt_blob;
 
-	if (!initial_boot_params)
+	if (!fdtp)
 		return;
 
-	base = virt_to_phys((void *)initial_boot_params);
-	size = be32_to_cpu(initial_boot_params->totalsize);
+	base = virt_to_phys(fdtp);
+	size = be32_to_cpu(fdtp->totalsize);
 
 	/* Before we do anything, lets reserve the dt blob */
 	reserve_bootmem(base, size, BOOTMEM_DEFAULT);
diff --git a/arch/mips/netlogic/xlp/setup.c b/arch/mips/netlogic/xlp/setup.c
index 76a7131e486e..6d981bb337ec 100644
--- a/arch/mips/netlogic/xlp/setup.c
+++ b/arch/mips/netlogic/xlp/setup.c
@@ -98,7 +98,7 @@ void __init plat_mem_setup(void)
 	pm_power_off	= nlm_linux_exit;
 
 	/* memory and bootargs from DT */
-	early_init_devtree(initial_boot_params);
+	xlp_early_init_devtree();
 
 	if (boot_mem_map.nr_map == 0) {
 		pr_info("Using DRAM BARs for memory map.\n");
-- 
cgit 


From 359d992bcd398273637cd9edde10afca953783c4 Mon Sep 17 00:00:00 2001
From: Gu Zheng <guz.fnst@cn.fujitsu.com>
Date: Mon, 4 Nov 2013 18:21:05 +0800
Subject: xfs: simplify kmem_{zone_}zalloc

Introduce flag KM_ZERO which is used to alloc zeroed entry, and convert
kmem_{zone_}zalloc to call kmem_{zone_}alloc() with KM_ZERO directly,
in order to avoid the setting to zero step.
And following Dave's suggestion, make kmem_{zone_}zalloc static inline
into kmem.h as they're now just a simple wrapper.

V2:
  Make kmem_{zone_}zalloc static inline into kmem.h as Dave suggested.

Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/kmem.c | 22 ----------------------
 fs/xfs/kmem.h | 21 ++++++++++++++++++---
 2 files changed, 18 insertions(+), 25 deletions(-)

diff --git a/fs/xfs/kmem.c b/fs/xfs/kmem.c
index a02cfb9e3bce..66a36befc5c0 100644
--- a/fs/xfs/kmem.c
+++ b/fs/xfs/kmem.c
@@ -62,17 +62,6 @@ kmem_alloc(size_t size, xfs_km_flags_t flags)
 	} while (1);
 }
 
-void *
-kmem_zalloc(size_t size, xfs_km_flags_t flags)
-{
-	void	*ptr;
-
-	ptr = kmem_alloc(size, flags);
-	if (ptr)
-		memset((char *)ptr, 0, (int)size);
-	return ptr;
-}
-
 void *
 kmem_zalloc_large(size_t size, xfs_km_flags_t flags)
 {
@@ -128,14 +117,3 @@ kmem_zone_alloc(kmem_zone_t *zone, xfs_km_flags_t flags)
 		congestion_wait(BLK_RW_ASYNC, HZ/50);
 	} while (1);
 }
-
-void *
-kmem_zone_zalloc(kmem_zone_t *zone, xfs_km_flags_t flags)
-{
-	void	*ptr;
-
-	ptr = kmem_zone_alloc(zone, flags);
-	if (ptr)
-		memset((char *)ptr, 0, kmem_cache_size(zone));
-	return ptr;
-}
diff --git a/fs/xfs/kmem.h b/fs/xfs/kmem.h
index 3a7371cab508..64db0e53edea 100644
--- a/fs/xfs/kmem.h
+++ b/fs/xfs/kmem.h
@@ -32,6 +32,7 @@ typedef unsigned __bitwise xfs_km_flags_t;
 #define KM_NOSLEEP	((__force xfs_km_flags_t)0x0002u)
 #define KM_NOFS		((__force xfs_km_flags_t)0x0004u)
 #define KM_MAYFAIL	((__force xfs_km_flags_t)0x0008u)
+#define KM_ZERO		((__force xfs_km_flags_t)0x0010u)
 
 /*
  * We use a special process flag to avoid recursive callbacks into
@@ -43,7 +44,7 @@ kmem_flags_convert(xfs_km_flags_t flags)
 {
 	gfp_t	lflags;
 
-	BUG_ON(flags & ~(KM_SLEEP|KM_NOSLEEP|KM_NOFS|KM_MAYFAIL));
+	BUG_ON(flags & ~(KM_SLEEP|KM_NOSLEEP|KM_NOFS|KM_MAYFAIL|KM_ZERO));
 
 	if (flags & KM_NOSLEEP) {
 		lflags = GFP_ATOMIC | __GFP_NOWARN;
@@ -52,11 +53,14 @@ kmem_flags_convert(xfs_km_flags_t flags)
 		if ((current->flags & PF_FSTRANS) || (flags & KM_NOFS))
 			lflags &= ~__GFP_FS;
 	}
+
+	if (flags & KM_ZERO)
+		lflags |= __GFP_ZERO;
+
 	return lflags;
 }
 
 extern void *kmem_alloc(size_t, xfs_km_flags_t);
-extern void *kmem_zalloc(size_t, xfs_km_flags_t);
 extern void *kmem_zalloc_large(size_t size, xfs_km_flags_t);
 extern void *kmem_realloc(const void *, size_t, size_t, xfs_km_flags_t);
 extern void  kmem_free(const void *);
@@ -64,6 +68,12 @@ extern void  kmem_free(const void *);
 
 extern void *kmem_zalloc_greedy(size_t *, size_t, size_t);
 
+static inline void *
+kmem_zalloc(size_t size, xfs_km_flags_t flags)
+{
+	return kmem_alloc(size, flags | KM_ZERO);
+}
+
 /*
  * Zone interfaces
  */
@@ -102,6 +112,11 @@ kmem_zone_destroy(kmem_zone_t *zone)
 }
 
 extern void *kmem_zone_alloc(kmem_zone_t *, xfs_km_flags_t);
-extern void *kmem_zone_zalloc(kmem_zone_t *, xfs_km_flags_t);
+
+static inline void *
+kmem_zone_zalloc(kmem_zone_t *zone, xfs_km_flags_t flags)
+{
+	return kmem_zone_alloc(zone, flags | KM_ZERO);
+}
 
 #endif /* __XFS_SUPPORT_KMEM_H__ */
-- 
cgit 


From f92d74c1f5afaff7cd1ea14ade8f1ba6b519e422 Mon Sep 17 00:00:00 2001
From: "Stephen M. Cameron" <scameron@beardog.cce.hp.com>
Date: Fri, 1 Nov 2013 14:34:55 -0500
Subject: PCI: Warn on driver probe return value greater than zero

Ages ago, drivers could return values greater than zero from their probe
function and this would be regarded as success.

But after f3ec4f87d607 ("PCI: change device runtime PM settings for probe
and remove") and 967577b06241 ("PCI/PM: Keep runtime PM enabled for unbound
PCI devices"), we set dev->driver to NULL if the driver's probe function
returns a value greater than zero.

__pci_device_probe() treats this as success, and drivers can still mostly
work even with dev->driver == NULL, but PCI power management doesn't work,
and we don't call the driver's remove function on rmmod.

To help catch these driver problems, issue a warning in this case.

[bhelgaas: changelog]
Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 drivers/pci/pci-driver.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index b60fe6737f78..0929ae3e7830 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -264,11 +264,19 @@ static long local_pci_probe(void *_ddi)
 	pm_runtime_get_sync(dev);
 	pci_dev->driver = pci_drv;
 	rc = pci_drv->probe(pci_dev, ddi->id);
-	if (rc) {
+	if (!rc)
+		return rc;
+	if (rc < 0) {
 		pci_dev->driver = NULL;
 		pm_runtime_put_sync(dev);
+		return rc;
 	}
-	return rc;
+	/*
+	 * Probe function should return < 0 for failure, 0 for success
+	 * Treat values > 0 as success, but warn.
+	 */
+	dev_warn(dev, "Driver probe function unexpectedly returned %d\n", rc);
+	return 0;
 }
 
 static int pci_call_probe(struct pci_driver *drv, struct pci_dev *dev,
-- 
cgit 


From 0e4ccb1505a9e29c50170742ce26ac4655baab2d Mon Sep 17 00:00:00 2001
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Date: Wed, 6 Nov 2013 16:16:56 -0500
Subject: PCI: Add x86_msi.msi_mask_irq() and msix_mask_irq()

Certain platforms do not allow writes in the MSI-X BARs to setup or tear
down vector values.  To combat against the generic code trying to write to
that and either silently being ignored or crashing due to the pagetables
being marked R/O this patch introduces a platform override.

Note that we keep two separate, non-weak, functions default_mask_msi_irqs()
and default_mask_msix_irqs() for the behavior of the arch_mask_msi_irqs()
and arch_mask_msix_irqs(), as the default behavior is needed by x86 PCI
code.

For Xen, which does not allow the guest to write to MSI-X tables - as the
hypervisor is solely responsible for setting the vector values - we
implement two nops.

This fixes a Xen guest crash when passing a PCI device with MSI-X to the
guest.  See the bugzilla for more details.

[bhelgaas: add bugzilla info]
Reference: https://bugzilla.kernel.org/show_bug.cgi?id=64581
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com>
CC: Zhenzhong Duan <zhenzhong.duan@oracle.com>
---
 arch/x86/include/asm/x86_init.h |  3 +++
 arch/x86/kernel/x86_init.c      | 10 ++++++++++
 arch/x86/pci/xen.c              | 13 ++++++++++++-
 drivers/pci/msi.c               | 22 ++++++++++++++++------
 include/linux/msi.h             |  2 ++
 5 files changed, 43 insertions(+), 7 deletions(-)

diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index 828a1565ba57..0f1be11e43d2 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -172,6 +172,7 @@ struct x86_platform_ops {
 
 struct pci_dev;
 struct msi_msg;
+struct msi_desc;
 
 struct x86_msi_ops {
 	int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type);
@@ -182,6 +183,8 @@ struct x86_msi_ops {
 	void (*teardown_msi_irqs)(struct pci_dev *dev);
 	void (*restore_msi_irqs)(struct pci_dev *dev, int irq);
 	int  (*setup_hpet_msi)(unsigned int irq, unsigned int id);
+	u32 (*msi_mask_irq)(struct msi_desc *desc, u32 mask, u32 flag);
+	u32 (*msix_mask_irq)(struct msi_desc *desc, u32 flag);
 };
 
 struct IO_APIC_route_entry;
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index 8ce0072cd700..021783b1f46a 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -116,6 +116,8 @@ struct x86_msi_ops x86_msi = {
 	.teardown_msi_irqs	= default_teardown_msi_irqs,
 	.restore_msi_irqs	= default_restore_msi_irqs,
 	.setup_hpet_msi		= default_setup_hpet_msi,
+	.msi_mask_irq		= default_msi_mask_irq,
+	.msix_mask_irq		= default_msix_mask_irq,
 };
 
 /* MSI arch specific hooks */
@@ -138,6 +140,14 @@ void arch_restore_msi_irqs(struct pci_dev *dev, int irq)
 {
 	x86_msi.restore_msi_irqs(dev, irq);
 }
+u32 arch_msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
+{
+	return x86_msi.msi_mask_irq(desc, mask, flag);
+}
+u32 arch_msix_mask_irq(struct msi_desc *desc, u32 flag)
+{
+	return x86_msi.msix_mask_irq(desc, flag);
+}
 #endif
 
 struct x86_io_apic_ops x86_io_apic_ops = {
diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index 48e8461057ba..5eee4959785d 100644
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -382,7 +382,14 @@ static void xen_teardown_msi_irq(unsigned int irq)
 {
 	xen_destroy_irq(irq);
 }
-
+static u32 xen_nop_msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
+{
+	return 0;
+}
+static u32 xen_nop_msix_mask_irq(struct msi_desc *desc, u32 flag)
+{
+	return 0;
+}
 #endif
 
 int __init pci_xen_init(void)
@@ -406,6 +413,8 @@ int __init pci_xen_init(void)
 	x86_msi.setup_msi_irqs = xen_setup_msi_irqs;
 	x86_msi.teardown_msi_irq = xen_teardown_msi_irq;
 	x86_msi.teardown_msi_irqs = xen_teardown_msi_irqs;
+	x86_msi.msi_mask_irq = xen_nop_msi_mask_irq;
+	x86_msi.msix_mask_irq = xen_nop_msix_mask_irq;
 #endif
 	return 0;
 }
@@ -485,6 +494,8 @@ int __init pci_xen_initial_domain(void)
 	x86_msi.setup_msi_irqs = xen_initdom_setup_msi_irqs;
 	x86_msi.teardown_msi_irq = xen_teardown_msi_irq;
 	x86_msi.restore_msi_irqs = xen_initdom_restore_msi_irqs;
+	x86_msi.msi_mask_irq = xen_nop_msi_mask_irq;
+	x86_msi.msix_mask_irq = xen_nop_msix_mask_irq;
 #endif
 	xen_setup_acpi_sci();
 	__acpi_register_gsi = acpi_register_gsi_xen;
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 604265c40853..5e63645a7abe 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -185,7 +185,7 @@ static inline __attribute_const__ u32 msi_enabled_mask(u16 control)
  * reliably as devices without an INTx disable bit will then generate a
  * level IRQ which will never be cleared.
  */
-static u32 __msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
+u32 default_msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
 {
 	u32 mask_bits = desc->masked;
 
@@ -199,9 +199,14 @@ static u32 __msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
 	return mask_bits;
 }
 
+__weak u32 arch_msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
+{
+	return default_msi_mask_irq(desc, mask, flag);
+}
+
 static void msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
 {
-	desc->masked = __msi_mask_irq(desc, mask, flag);
+	desc->masked = arch_msi_mask_irq(desc, mask, flag);
 }
 
 /*
@@ -211,7 +216,7 @@ static void msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag)
  * file.  This saves a few milliseconds when initialising devices with lots
  * of MSI-X interrupts.
  */
-static u32 __msix_mask_irq(struct msi_desc *desc, u32 flag)
+u32 default_msix_mask_irq(struct msi_desc *desc, u32 flag)
 {
 	u32 mask_bits = desc->masked;
 	unsigned offset = desc->msi_attrib.entry_nr * PCI_MSIX_ENTRY_SIZE +
@@ -224,9 +229,14 @@ static u32 __msix_mask_irq(struct msi_desc *desc, u32 flag)
 	return mask_bits;
 }
 
+__weak u32 arch_msix_mask_irq(struct msi_desc *desc, u32 flag)
+{
+	return default_msix_mask_irq(desc, flag);
+}
+
 static void msix_mask_irq(struct msi_desc *desc, u32 flag)
 {
-	desc->masked = __msix_mask_irq(desc, flag);
+	desc->masked = arch_msix_mask_irq(desc, flag);
 }
 
 static void msi_set_mask_bit(struct irq_data *data, u32 flag)
@@ -902,7 +912,7 @@ void pci_msi_shutdown(struct pci_dev *dev)
 	pci_read_config_word(dev, dev->msi_cap + PCI_MSI_FLAGS, &ctrl);
 	mask = msi_capable_mask(ctrl);
 	/* Keep cached state to be restored */
-	__msi_mask_irq(desc, mask, ~mask);
+	arch_msi_mask_irq(desc, mask, ~mask);
 
 	/* Restore dev->irq to its default pin-assertion irq */
 	dev->irq = desc->msi_attrib.default_irq;
@@ -998,7 +1008,7 @@ void pci_msix_shutdown(struct pci_dev *dev)
 	/* Return the device with MSI-X masked as initial states */
 	list_for_each_entry(entry, &dev->msi_list, list) {
 		/* Keep cached states to be restored */
-		__msix_mask_irq(entry, 1);
+		arch_msix_mask_irq(entry, 1);
 	}
 
 	msix_set_enable(dev, 0);
diff --git a/include/linux/msi.h b/include/linux/msi.h
index b17ead818aec..87cce50bd121 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -64,6 +64,8 @@ void arch_restore_msi_irqs(struct pci_dev *dev, int irq);
 
 void default_teardown_msi_irqs(struct pci_dev *dev);
 void default_restore_msi_irqs(struct pci_dev *dev, int irq);
+u32 default_msi_mask_irq(struct msi_desc *desc, u32 mask, u32 flag);
+u32 default_msix_mask_irq(struct msi_desc *desc, u32 flag);
 
 struct msi_chip {
 	struct module *owner;
-- 
cgit 


From b0ced9d220f78f27b93e4d1024b3865ba172dbce Mon Sep 17 00:00:00 2001
From: Tushar Behera <tushar.behera@linaro.org>
Date: Thu, 31 Oct 2013 06:46:14 +0100
Subject: ARM: 7874/2: bL_switcher: Remove cpu_hotplug_driver_{lock,unlock}()

Commit 6dedcca610c6 ("hotplug, powerpc, x86: Remove
cpu_hotplug_driver_lock())" removes the the definition of
cpu_hotplug_driver_{lock,unlock} APIs, thereby causing a build error.

Replace these calls with {lock,unlock}_device_hotplug().

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/common/bL_switcher.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/arm/common/bL_switcher.c b/arch/arm/common/bL_switcher.c
index 63bbc4f70564..5774b6ea7ad5 100644
--- a/arch/arm/common/bL_switcher.c
+++ b/arch/arm/common/bL_switcher.c
@@ -577,9 +577,9 @@ static int bL_switcher_enable(void)
 	int cpu, ret;
 
 	mutex_lock(&bL_switcher_activation_lock);
-	cpu_hotplug_driver_lock();
+	lock_device_hotplug();
 	if (bL_switcher_active) {
-		cpu_hotplug_driver_unlock();
+		unlock_device_hotplug();
 		mutex_unlock(&bL_switcher_activation_lock);
 		return 0;
 	}
@@ -615,7 +615,7 @@ error:
 	bL_activation_notify(BL_NOTIFY_POST_DISABLE);
 
 out:
-	cpu_hotplug_driver_unlock();
+	unlock_device_hotplug();
 	mutex_unlock(&bL_switcher_activation_lock);
 	return ret;
 }
@@ -629,7 +629,7 @@ static void bL_switcher_disable(void)
 	struct task_struct *task;
 
 	mutex_lock(&bL_switcher_activation_lock);
-	cpu_hotplug_driver_lock();
+	lock_device_hotplug();
 
 	if (!bL_switcher_active)
 		goto out;
@@ -685,7 +685,7 @@ static void bL_switcher_disable(void)
 	bL_activation_notify(BL_NOTIFY_POST_DISABLE);
 
 out:
-	cpu_hotplug_driver_unlock();
+	unlock_device_hotplug();
 	mutex_unlock(&bL_switcher_activation_lock);
 }
 
-- 
cgit 


From e16b31bf47738f4498d7ce632e12d7d2a6a2492a Mon Sep 17 00:00:00 2001
From: Marc Zyngier <Marc.Zyngier@arm.com>
Date: Mon, 4 Nov 2013 11:42:29 +0100
Subject: ARM: 7876/1: clear Thumb-2 IT state on exception handling

The exception handling code fails to clear the IT state, potentially
leading to incorrect execution of the fixup if the size of the IT
block is more than one.

Let fixup_exception do the IT sanitizing if a fixup has been found,
and restore CPSR from the stack when returning from a data abort.

Cc: Will Deacon <will.deacon@arm.com>
Cc: stable@vger.kernel.org
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/entry-armv.S | 1 +
 arch/arm/mm/extable.c        | 7 ++++++-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 9cbe70c8b0ef..ec3e5cf46308 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -192,6 +192,7 @@ __dabt_svc:
 	svc_entry
 	mov	r2, sp
 	dabt_helper
+ THUMB(	ldr	r5, [sp, #S_PSR]	)	@ potentially updated CPSR
 	svc_exit r5				@ return from exception
  UNWIND(.fnend		)
 ENDPROC(__dabt_svc)
diff --git a/arch/arm/mm/extable.c b/arch/arm/mm/extable.c
index 9d285626bc7d..312e15e6d00b 100644
--- a/arch/arm/mm/extable.c
+++ b/arch/arm/mm/extable.c
@@ -9,8 +9,13 @@ int fixup_exception(struct pt_regs *regs)
 	const struct exception_table_entry *fixup;
 
 	fixup = search_exception_tables(instruction_pointer(regs));
-	if (fixup)
+	if (fixup) {
 		regs->ARM_pc = fixup->fixup;
+#ifdef CONFIG_THUMB2_KERNEL
+		/* Clear the IT state to avoid nasty surprises in the fixup */
+		regs->ARM_cpsr &= ~PSR_IT_MASK;
+#endif
+	}
 
 	return fixup != NULL;
 }
-- 
cgit 


From 70d42126877b9faa272d446a6de5917614c28dd9 Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Wed, 6 Nov 2013 09:12:40 +0100
Subject: ARM: 7878/1: nommu: Implement dummy early_paging_init()

No-MMU configurations currenty fail to build because they are missing
the early_paging_init() symbol.

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mm/nommu.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c
index 34d4ab217bab..5c668b7a31f9 100644
--- a/arch/arm/mm/nommu.c
+++ b/arch/arm/mm/nommu.c
@@ -295,6 +295,15 @@ void __init sanity_check_meminfo(void)
 	high_memory = __va(end - 1) + 1;
 }
 
+/*
+ * early_paging_init() recreates boot time page table setup, allowing machines
+ * to switch over to a high (>4G) address space on LPAE systems
+ */
+void __init early_paging_init(const struct machine_desc *mdesc,
+			      struct proc_info_list *procinfo)
+{
+}
+
 /*
  * paging_init() sets up the page tables, initialises the zone memory
  * maps, and sets up the zero page, bad page and bad page tables.
-- 
cgit 


From 6ecf830e5029598732e04067e325d946097519cb Mon Sep 17 00:00:00 2001
From: "T.J. Purtell" <tj@mobisocial.us>
Date: Wed, 6 Nov 2013 18:38:05 +0100
Subject: ARM: 7880/1: Clear the IT state independent of the Thumb-2 mode

The ARM architecture reference specifies that the IT state bits in the
PSR must be all zeros in ARM mode or behavior is unspecified.  On the
Qualcomm Snapdragon S4/Krait architecture CPUs the processor continues
to consider the IT state bits while in ARM mode.  This makes it so
that some instructions are skipped by the CPU.

Signed-off-by: T.J. Purtell <tj@mobisocial.us>
[rmk+kernel@arm.linux.org.uk: fixed whitespace formatting in patch]
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/signal.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c
index ab3304225272..1aa5ecdd1b3d 100644
--- a/arch/arm/kernel/signal.c
+++ b/arch/arm/kernel/signal.c
@@ -375,12 +375,18 @@ setup_return(struct pt_regs *regs, struct ksignal *ksig,
 		 */
 		thumb = handler & 1;
 
-		if (thumb) {
-			cpsr |= PSR_T_BIT;
 #if __LINUX_ARM_ARCH__ >= 7
-			/* clear the If-Then Thumb-2 execution state */
-			cpsr &= ~PSR_IT_MASK;
+		/*
+		 * Clear the If-Then Thumb-2 execution state
+		 * ARM spec requires this to be all 000s in ARM mode
+		 * Snapdragon S4/Krait misbehaves on a Thumb=>ARM
+		 * signal transition without this.
+		 */
+		cpsr &= ~PSR_IT_MASK;
 #endif
+
+		if (thumb) {
+			cpsr |= PSR_T_BIT;
 		} else
 			cpsr &= ~PSR_T_BIT;
 	}
-- 
cgit 


From bf18525fd793101df42a1344ecc48b49b62e48c9 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Tue, 29 Oct 2013 20:32:56 +0100
Subject: ARM: 7872/1: Support arch_irq_work_raise() via self IPIs

By default, IRQ work is run from the tick interrupt (see
irq_work_run() in update_process_times()). When we're in full
NOHZ mode, restarting the tick requires the use of IRQ work and
if the only place we run IRQ work is in the tick interrupt we
have an unbreakable cycle. Implement arch_irq_work_raise() via
self IPIs to break this cycle and get the tick started again.
Note that we implement this via IPIs which are only available on
SMP builds. This shouldn't be a problem because full NOHZ is only
supported on SMP builds anyway.

Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Reviewed-by: Kevin Hilman <khilman@linaro.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/include/asm/hardirq.h |  2 +-
 arch/arm/kernel/smp.c          | 18 ++++++++++++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/hardirq.h b/arch/arm/include/asm/hardirq.h
index 2740c2a2df63..3d7351c844aa 100644
--- a/arch/arm/include/asm/hardirq.h
+++ b/arch/arm/include/asm/hardirq.h
@@ -5,7 +5,7 @@
 #include <linux/threads.h>
 #include <asm/irq.h>
 
-#define NR_IPI	6
+#define NR_IPI	7
 
 typedef struct {
 	unsigned int __softirq_pending;
diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index 72024ea8a3a6..bf9a0d6d91dc 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -25,6 +25,7 @@
 #include <linux/clockchips.h>
 #include <linux/completion.h>
 #include <linux/cpufreq.h>
+#include <linux/irq_work.h>
 
 #include <linux/atomic.h>
 #include <asm/smp.h>
@@ -66,6 +67,7 @@ enum ipi_msg_type {
 	IPI_CALL_FUNC,
 	IPI_CALL_FUNC_SINGLE,
 	IPI_CPU_STOP,
+	IPI_IRQ_WORK,
 };
 
 static DECLARE_COMPLETION(cpu_running);
@@ -448,6 +450,13 @@ void arch_send_call_function_single_ipi(int cpu)
 	smp_cross_call(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE);
 }
 
+#ifdef CONFIG_IRQ_WORK
+void arch_irq_work_raise(void)
+{
+	smp_cross_call(cpumask_of(smp_processor_id()), IPI_IRQ_WORK);
+}
+#endif
+
 static const char *ipi_types[NR_IPI] = {
 #define S(x,s)	[x] = s
 	S(IPI_WAKEUP, "CPU wakeup interrupts"),
@@ -456,6 +465,7 @@ static const char *ipi_types[NR_IPI] = {
 	S(IPI_CALL_FUNC, "Function call interrupts"),
 	S(IPI_CALL_FUNC_SINGLE, "Single function call interrupts"),
 	S(IPI_CPU_STOP, "CPU stop interrupts"),
+	S(IPI_IRQ_WORK, "IRQ work interrupts"),
 };
 
 void show_ipi_list(struct seq_file *p, int prec)
@@ -565,6 +575,14 @@ void handle_IPI(int ipinr, struct pt_regs *regs)
 		irq_exit();
 		break;
 
+#ifdef CONFIG_IRQ_WORK
+	case IPI_IRQ_WORK:
+		irq_enter();
+		irq_work_run();
+		irq_exit();
+		break;
+#endif
+
 	default:
 		printk(KERN_CRIT "CPU%u: Unknown IPI message 0x%x\n",
 		       cpu, ipinr);
-- 
cgit 


From 71bba8fafac8975dbb684df4098d2dd6baac1fda Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 7 Nov 2013 01:40:50 +0100
Subject: ACPI: Remove acpi_pci_slot_init() headers from internal.h

Since acpi_pci_slot_init() is now called from acpi_pci_init()
and pci-acpi.h contains its header, remove that header (and the
empty definition of that function for CONFIG_ACPI_PCI_SLOT unset)
from internal.h as it doesn't have to be there any more.  That also
avoids a build warning about duplicate function definitions for
CONFIG_ACPI_PCI_SLOT unset.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/internal.h | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 20f423337e1f..ebc3ad0a188d 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -26,11 +26,6 @@
 acpi_status acpi_os_initialize1(void);
 int init_acpi_device_notify(void);
 int acpi_scan_init(void);
-#ifdef	CONFIG_ACPI_PCI_SLOT
-void acpi_pci_slot_init(void);
-#else
-static inline void acpi_pci_slot_init(void) { }
-#endif
 void acpi_pci_root_init(void);
 void acpi_pci_link_init(void);
 void acpi_pci_root_hp_init(void);
-- 
cgit 


From 6931007cc90ba94b3c2b29179d0a7cde194dabe8 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 7 Nov 2013 01:41:01 +0100
Subject: ACPI / scan: Start matching drivers after trying scan handlers

ACPI scan handlers should always be attached to struct acpi_device
objects before any ACPI drivers, but there is a window during which
a driver may be attached to a struct acpi_device before checking if
there is a matching scan handler.  Namely, that will happen if an
ACPI driver module is loaded during acpi_bus_scan() right after
the first namespace walk is complete and before the given device
is processed by the second namespace walk.

To prevent that from happening, set the match_driver flags of
struct acpi_device objects right before running device_attach()
for them in acpi_bus_device_attach().

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/scan.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index fbdb82e70d10..4d377a22622a 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1677,7 +1677,6 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
 
 void acpi_device_add_finalize(struct acpi_device *device)
 {
-	device->flags.match_driver = true;
 	dev_set_uevent_suppress(&device->dev, false);
 	kobject_uevent(&device->dev.kobj, KOBJ_ADD);
 }
@@ -1916,8 +1915,12 @@ static acpi_status acpi_bus_device_attach(acpi_handle handle, u32 lvl_not_used,
 		return AE_OK;
 
 	ret = acpi_scan_attach_handler(device);
-	if (ret)
-		return ret > 0 ? AE_OK : AE_CTRL_DEPTH;
+	if (ret < 0)
+		return AE_CTRL_DEPTH;
+
+	device->flags.match_driver = true;
+	if (ret > 0)
+		return AE_OK;
 
 	ret = device_attach(&device->dev);
 	return ret >= 0 ? AE_OK : AE_CTRL_DEPTH;
-- 
cgit 


From 7f28ddeccea453fd20b1c74a88df19590ad9203c Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 7 Nov 2013 01:41:14 +0100
Subject: ACPI / hotplug: Refuse to hot-remove all objects with disabled
 hotplug

In theory, an ACPI device object may be the parent of another
device object whose hotplug is disabled by user space through its
scan handler.  In that case, the eject operation targeting the
parent should fail as though the parent's own hotplug was disabled,
but currently this is not the case, because acpi_scan_hot_remove()
doesn't check the disable/enable hotplug status of the children
of the top-most object passed to it.

To fix this, modify acpi_bus_offline_companions() to return an
error code if hotplug is disabled for the given device object.
[Also change the name of the function to acpi_bus_offline(),
because it is not only about companions any more, and change
the name of acpi_bus_online_companions() accordingly.]  Make
acpi_scan_hot_remove() propagate that error to its callers.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/scan.c | 57 +++++++++++++++++++++++++++++++++--------------------
 1 file changed, 36 insertions(+), 21 deletions(-)

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 4d377a22622a..9bdcc187bf4b 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -125,8 +125,8 @@ acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, cha
 }
 static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL);
 
-static acpi_status acpi_bus_offline_companions(acpi_handle handle, u32 lvl,
-					       void *data, void **ret_p)
+static acpi_status acpi_bus_offline(acpi_handle handle, u32 lvl, void *data,
+				    void **ret_p)
 {
 	struct acpi_device *device = NULL;
 	struct acpi_device_physical_node *pn;
@@ -136,6 +136,11 @@ static acpi_status acpi_bus_offline_companions(acpi_handle handle, u32 lvl,
 	if (acpi_bus_get_device(handle, &device))
 		return AE_OK;
 
+	if (device->handler && !device->handler->hotplug.enabled) {
+		*ret_p = &device->dev;
+		return AE_SUPPORT;
+	}
+
 	mutex_lock(&device->physical_node_lock);
 
 	list_for_each_entry(pn, &device->physical_node_list, node) {
@@ -168,8 +173,8 @@ static acpi_status acpi_bus_offline_companions(acpi_handle handle, u32 lvl,
 	return status;
 }
 
-static acpi_status acpi_bus_online_companions(acpi_handle handle, u32 lvl,
-					      void *data, void **ret_p)
+static acpi_status acpi_bus_online(acpi_handle handle, u32 lvl, void *data,
+				   void **ret_p)
 {
 	struct acpi_device *device = NULL;
 	struct acpi_device_physical_node *pn;
@@ -214,26 +219,32 @@ static int acpi_scan_hot_remove(struct acpi_device *device)
 	 * If the first pass is successful, the second one isn't needed, though.
 	 */
 	errdev = NULL;
-	acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
-			    NULL, acpi_bus_offline_companions,
-			    (void *)false, (void **)&errdev);
-	acpi_bus_offline_companions(handle, 0, (void *)false, (void **)&errdev);
+	status = acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
+				     NULL, acpi_bus_offline, (void *)false,
+				     (void **)&errdev);
+	if (status == AE_SUPPORT) {
+		dev_warn(errdev, "Offline disabled.\n");
+		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
+				    acpi_bus_online, NULL, NULL, NULL);
+		put_device(&device->dev);
+		return -EPERM;
+	}
+	acpi_bus_offline(handle, 0, (void *)false, (void **)&errdev);
 	if (errdev) {
 		errdev = NULL;
 		acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX,
-				    NULL, acpi_bus_offline_companions,
-				    (void *)true , (void **)&errdev);
+				    NULL, acpi_bus_offline, (void *)true,
+				    (void **)&errdev);
 		if (!errdev || acpi_force_hot_remove)
-			acpi_bus_offline_companions(handle, 0, (void *)true,
-						    (void **)&errdev);
+			acpi_bus_offline(handle, 0, (void *)true,
+					 (void **)&errdev);
 
 		if (errdev && !acpi_force_hot_remove) {
 			dev_warn(errdev, "Offline failed.\n");
-			acpi_bus_online_companions(handle, 0, NULL, NULL);
+			acpi_bus_online(handle, 0, NULL, NULL);
 			acpi_walk_namespace(ACPI_TYPE_ANY, handle,
-					    ACPI_UINT32_MAX,
-					    acpi_bus_online_companions, NULL,
-					    NULL, NULL);
+					    ACPI_UINT32_MAX, acpi_bus_online,
+					    NULL, NULL, NULL);
 			put_device(&device->dev);
 			return -EBUSY;
 		}
@@ -290,10 +301,9 @@ static void acpi_bus_device_eject(void *context)
 		goto err_out;
 
 	handler = device->handler;
-	if (!handler || !handler->hotplug.enabled) {
-		ost_code = ACPI_OST_SC_EJECT_NOT_SUPPORTED;
-		goto err_out;
-	}
+	if (!handler || !handler->hotplug.enabled)
+		goto err_support;
+
 	acpi_evaluate_hotplug_ost(handle, ACPI_NOTIFY_EJECT_REQUEST,
 				  ACPI_OST_SC_EJECT_IN_PROGRESS, NULL);
 	if (handler->hotplug.mode == AHM_CONTAINER)
@@ -301,14 +311,19 @@ static void acpi_bus_device_eject(void *context)
 
 	get_device(&device->dev);
 	error = acpi_scan_hot_remove(device);
-	if (error)
+	if (error == -EPERM) {
+		goto err_support;
+	} else if (error) {
 		goto err_out;
+	}
 
  out:
 	mutex_unlock(&acpi_scan_lock);
 	unlock_device_hotplug();
 	return;
 
+ err_support:
+	ost_code = ACPI_OST_SC_EJECT_NOT_SUPPORTED;
  err_out:
 	acpi_evaluate_hotplug_ost(handle, ACPI_NOTIFY_EJECT_REQUEST, ost_code,
 				  NULL);
-- 
cgit 


From 2441191a19039002b2c454a261fb45986df15184 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 7 Nov 2013 01:41:27 +0100
Subject: ACPI / hotplug: Fix handle_root_bridge_removal()

It is required to do get_device() on the struct acpi_device in
question before passing it to acpi_bus_hot_remove_device() through
acpi_os_hotplug_execute(), because acpi_bus_hot_remove_device()
calls acpi_scan_hot_remove() that does put_device() on that
object.

The ACPI PCI root removal routine, handle_root_bridge_removal(),
doesn't do that, which may lead to premature freeing of the
device object or to executing put_device() on an object that
has been freed already.

Fix this problem by making handle_root_bridge_removal() use
get_device() as appropriate.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Cc: All applicable <stable@vger.kernel.org>
---
 drivers/acpi/pci_root.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index d3874f425653..d7e53ea53d6c 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -608,9 +608,12 @@ static void handle_root_bridge_removal(struct acpi_device *device)
 	ej_event->device = device;
 	ej_event->event = ACPI_NOTIFY_EJECT_REQUEST;
 
+	get_device(&device->dev);
 	status = acpi_os_hotplug_execute(acpi_bus_hot_remove_device, ej_event);
-	if (ACPI_FAILURE(status))
+	if (ACPI_FAILURE(status)) {
+		put_device(&device->dev);
 		kfree(ej_event);
+	}
 }
 
 static void _handle_hotplug_event_root(struct work_struct *work)
-- 
cgit 


From 5add99cfef416487d32b4b7075fe1a409f3a5e82 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 7 Nov 2013 01:41:39 +0100
Subject: ACPI / hotplug: Simplify device ejection routines

Simplify handle_root_bridge_removal() and acpi_eject_store() by
getting rid of struct acpi_eject_event and passing device objects
directly to async routines executed via acpi_os_hotplug_execute().

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/pci_root.c | 20 ++------------------
 drivers/acpi/scan.c     | 46 ++++++++++++++++++----------------------------
 include/acpi/acpi_bus.h |  5 -----
 3 files changed, 20 insertions(+), 51 deletions(-)

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index d7e53ea53d6c..2c03aaee1006 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -593,27 +593,11 @@ static void handle_root_bridge_insertion(acpi_handle handle)
 static void handle_root_bridge_removal(struct acpi_device *device)
 {
 	acpi_status status;
-	struct acpi_eject_event *ej_event;
-
-	ej_event = kmalloc(sizeof(*ej_event), GFP_KERNEL);
-	if (!ej_event) {
-		/* Inform firmware the hot-remove operation has error */
-		(void) acpi_evaluate_hotplug_ost(device->handle,
-					ACPI_NOTIFY_EJECT_REQUEST,
-					ACPI_OST_SC_NON_SPECIFIC_FAILURE,
-					NULL);
-		return;
-	}
-
-	ej_event->device = device;
-	ej_event->event = ACPI_NOTIFY_EJECT_REQUEST;
 
 	get_device(&device->dev);
-	status = acpi_os_hotplug_execute(acpi_bus_hot_remove_device, ej_event);
-	if (ACPI_FAILURE(status)) {
+	status = acpi_os_hotplug_execute(acpi_bus_hot_remove_device, device);
+	if (ACPI_FAILURE(status))
 		put_device(&device->dev);
-		kfree(ej_event);
-	}
 }
 
 static void _handle_hotplug_event_root(struct work_struct *work)
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 9bdcc187bf4b..cc19d623a18f 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -441,18 +441,8 @@ static void acpi_hotplug_notify_cb(acpi_handle handle, u32 type, void *data)
 					  NULL);
 }
 
-/**
- * acpi_bus_hot_remove_device: hot-remove a device and its children
- * @context: struct acpi_eject_event pointer (freed in this func)
- *
- * Hot-remove a device and its children. This function frees up the
- * memory space passed by arg context, so that the caller may call
- * this function asynchronously through acpi_os_hotplug_execute().
- */
-void acpi_bus_hot_remove_device(void *context)
+void __acpi_bus_hot_remove_device(struct acpi_device *device, u32 ost_src)
 {
-	struct acpi_eject_event *ej_event = context;
-	struct acpi_device *device = ej_event->device;
 	acpi_handle handle = device->handle;
 	int error;
 
@@ -461,13 +451,21 @@ void acpi_bus_hot_remove_device(void *context)
 
 	error = acpi_scan_hot_remove(device);
 	if (error && handle)
-		acpi_evaluate_hotplug_ost(handle, ej_event->event,
+		acpi_evaluate_hotplug_ost(handle, ost_src,
 					  ACPI_OST_SC_NON_SPECIFIC_FAILURE,
 					  NULL);
 
 	mutex_unlock(&acpi_scan_lock);
 	unlock_device_hotplug();
-	kfree(context);
+}
+
+/**
+ * acpi_bus_hot_remove_device: Hot-remove a device and its children.
+ * @context: Address of the ACPI device object to hot-remove.
+ */
+void acpi_bus_hot_remove_device(void *context)
+{
+	__acpi_bus_hot_remove_device(context, ACPI_NOTIFY_EJECT_REQUEST);
 }
 EXPORT_SYMBOL(acpi_bus_hot_remove_device);
 
@@ -497,15 +495,18 @@ static ssize_t power_state_show(struct device *dev,
 
 static DEVICE_ATTR(power_state, 0444, power_state_show, NULL);
 
+static void acpi_eject_store_work(void *context)
+{
+	__acpi_bus_hot_remove_device(context, ACPI_OST_EC_OSPM_EJECT);
+}
+
 static ssize_t
 acpi_eject_store(struct device *d, struct device_attribute *attr,
 		const char *buf, size_t count)
 {
 	struct acpi_device *acpi_device = to_acpi_device(d);
-	struct acpi_eject_event *ej_event;
 	acpi_object_type not_used;
 	acpi_status status;
-	int ret;
 
 	if (!count || buf[0] != '1')
 		return -EINVAL;
@@ -518,28 +519,17 @@ acpi_eject_store(struct device *d, struct device_attribute *attr,
 	if (ACPI_FAILURE(status) || !acpi_device->flags.ejectable)
 		return -ENODEV;
 
-	ej_event = kmalloc(sizeof(*ej_event), GFP_KERNEL);
-	if (!ej_event) {
-		ret = -ENOMEM;
-		goto err_out;
-	}
 	acpi_evaluate_hotplug_ost(acpi_device->handle, ACPI_OST_EC_OSPM_EJECT,
 				  ACPI_OST_SC_EJECT_IN_PROGRESS, NULL);
-	ej_event->device = acpi_device;
-	ej_event->event = ACPI_OST_EC_OSPM_EJECT;
 	get_device(&acpi_device->dev);
-	status = acpi_os_hotplug_execute(acpi_bus_hot_remove_device, ej_event);
+	status = acpi_os_hotplug_execute(acpi_eject_store_work, acpi_device);
 	if (ACPI_SUCCESS(status))
 		return count;
 
 	put_device(&acpi_device->dev);
-	kfree(ej_event);
-	ret = status == AE_NO_MEMORY ? -ENOMEM : -EAGAIN;
-
- err_out:
 	acpi_evaluate_hotplug_ost(acpi_device->handle, ACPI_OST_EC_OSPM_EJECT,
 				  ACPI_OST_SC_NON_SPECIFIC_FAILURE, NULL);
-	return ret;
+	return status == AE_NO_MEMORY ? -ENOMEM : -EAGAIN;
 }
 
 static DEVICE_ATTR(eject, 0200, NULL, acpi_eject_store);
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 02e113bb8b7d..06b644ca052c 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -339,11 +339,6 @@ struct acpi_bus_event {
 	u32 data;
 };
 
-struct acpi_eject_event {
-	struct acpi_device	*device;
-	u32		event;
-};
-
 struct acpi_hp_work {
 	struct work_struct work;
 	acpi_handle handle;
-- 
cgit 


From ace8238b00eafd493b8dbcc7db813ed72b8b6e87 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 7 Nov 2013 01:41:48 +0100
Subject: ACPI / hotplug: Make acpi_bus_hot_remove_device() internal

Notice that handle_root_bridge_removal() is the only user of
acpi_bus_hot_remove_device(), so it doesn't have to be exported
any more and can be made internal to the ACPI core.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/internal.h | 1 +
 drivers/acpi/pci_root.c | 2 ++
 drivers/acpi/scan.c     | 1 -
 include/acpi/acpi_bus.h | 1 -
 4 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index ebc3ad0a188d..6c79ae69d344 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -87,6 +87,7 @@ void acpi_device_add_finalize(struct acpi_device *device);
 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
 int acpi_bind_one(struct device *dev, acpi_handle handle);
 int acpi_unbind_one(struct device *dev);
+void acpi_bus_hot_remove_device(void *context);
 
 /* --------------------------------------------------------------------------
                                   Power Resource
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 2c03aaee1006..add408b07c93 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -39,6 +39,8 @@
 #include <acpi/acpi_drivers.h>
 #include <acpi/apei.h>
 
+#include "internal.h"
+
 #define PREFIX "ACPI: "
 
 #define _COMPONENT		ACPI_PCI_COMPONENT
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index cc19d623a18f..1217ba33f8bf 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -467,7 +467,6 @@ void acpi_bus_hot_remove_device(void *context)
 {
 	__acpi_bus_hot_remove_device(context, ACPI_NOTIFY_EJECT_REQUEST);
 }
-EXPORT_SYMBOL(acpi_bus_hot_remove_device);
 
 static ssize_t real_power_state_show(struct device *dev,
 				     struct device_attribute *attr, char *buf)
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 06b644ca052c..eb37a6fb8665 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -386,7 +386,6 @@ int acpi_scan_add_handler(struct acpi_scan_handler *handler);
 int acpi_bus_register_driver(struct acpi_driver *driver);
 void acpi_bus_unregister_driver(struct acpi_driver *driver);
 int acpi_bus_scan(acpi_handle handle);
-void acpi_bus_hot_remove_device(void *context);
 void acpi_bus_trim(struct acpi_device *start);
 acpi_status acpi_bus_get_ejd(acpi_handle handle, acpi_handle * ejd);
 int acpi_match_device_ids(struct acpi_device *device,
-- 
cgit 


From a3b1b1ef78cd2ffb5d3a223465064dee05929dc3 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 7 Nov 2013 01:41:58 +0100
Subject: ACPI / hotplug: Merge device hot-removal routines

There is no real reasn why acpi_bus_device_eject() and
acpi_bus_hot_remove_device() should work differently, so rework
acpi_bus_device_eject() so that it can be called internally by
both acpi_bus_hot_remove_device() and acpi_eject_store_work().
Accordingly, rework acpi_hotplug_notify_cb() to queue up the
execution of acpi_bus_hot_remove_device() through
acpi_os_hotplug_execute() on eject request notifications.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/scan.c | 84 ++++++++++++++++++++++++-----------------------------
 1 file changed, 38 insertions(+), 46 deletions(-)

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 1217ba33f8bf..4a0a591feed3 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -285,10 +285,9 @@ static int acpi_scan_hot_remove(struct acpi_device *device)
 	return 0;
 }
 
-static void acpi_bus_device_eject(void *context)
+static void acpi_bus_device_eject(struct acpi_device *device, u32 ost_src)
 {
-	acpi_handle handle = context;
-	struct acpi_device *device = NULL;
+	acpi_handle handle = device->handle;
 	struct acpi_scan_handler *handler;
 	u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE;
 	int error;
@@ -296,20 +295,19 @@ static void acpi_bus_device_eject(void *context)
 	lock_device_hotplug();
 	mutex_lock(&acpi_scan_lock);
 
-	acpi_bus_get_device(handle, &device);
-	if (!device)
-		goto err_out;
-
 	handler = device->handler;
-	if (!handler || !handler->hotplug.enabled)
+	if (!handler || !handler->hotplug.enabled) {
+		put_device(&device->dev);
 		goto err_support;
+	}
+
+	if (ost_src == ACPI_NOTIFY_EJECT_REQUEST)
+		acpi_evaluate_hotplug_ost(handle, ACPI_NOTIFY_EJECT_REQUEST,
+					  ACPI_OST_SC_EJECT_IN_PROGRESS, NULL);
 
-	acpi_evaluate_hotplug_ost(handle, ACPI_NOTIFY_EJECT_REQUEST,
-				  ACPI_OST_SC_EJECT_IN_PROGRESS, NULL);
 	if (handler->hotplug.mode == AHM_CONTAINER)
 		kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE);
 
-	get_device(&device->dev);
 	error = acpi_scan_hot_remove(device);
 	if (error == -EPERM) {
 		goto err_support;
@@ -325,8 +323,7 @@ static void acpi_bus_device_eject(void *context)
  err_support:
 	ost_code = ACPI_OST_SC_EJECT_NOT_SUPPORTED;
  err_out:
-	acpi_evaluate_hotplug_ost(handle, ACPI_NOTIFY_EJECT_REQUEST, ost_code,
-				  NULL);
+	acpi_evaluate_hotplug_ost(handle, ost_src, ost_code, NULL);
 	goto out;
 }
 
@@ -408,10 +405,20 @@ static void acpi_hotplug_unsupported(acpi_handle handle, u32 type)
 	acpi_evaluate_hotplug_ost(handle, type, ost_status, NULL);
 }
 
+/**
+ * acpi_bus_hot_remove_device: Hot-remove a device and its children.
+ * @context: Address of the ACPI device object to hot-remove.
+ */
+void acpi_bus_hot_remove_device(void *context)
+{
+	acpi_bus_device_eject(context, ACPI_NOTIFY_EJECT_REQUEST);
+}
+
 static void acpi_hotplug_notify_cb(acpi_handle handle, u32 type, void *data)
 {
 	acpi_osd_exec_callback callback;
 	struct acpi_scan_handler *handler = data;
+	struct acpi_device *adev;
 	acpi_status status;
 
 	if (!handler->hotplug.enabled)
@@ -428,44 +435,29 @@ static void acpi_hotplug_notify_cb(acpi_handle handle, u32 type, void *data)
 		break;
 	case ACPI_NOTIFY_EJECT_REQUEST:
 		acpi_handle_debug(handle, "ACPI_NOTIFY_EJECT_REQUEST event\n");
-		callback = acpi_bus_device_eject;
-		break;
+		status = acpi_bus_get_device(handle, &adev);
+		if (ACPI_FAILURE(status))
+			goto err_out;
+
+		get_device(&adev->dev);
+		callback = acpi_bus_hot_remove_device;
+		status = acpi_os_hotplug_execute(callback, adev);
+		if (ACPI_SUCCESS(status))
+			return;
+
+		put_device(&adev->dev);
+		goto err_out;
 	default:
 		/* non-hotplug event; possibly handled by other handler */
 		return;
 	}
 	status = acpi_os_hotplug_execute(callback, handle);
-	if (ACPI_FAILURE(status))
-		acpi_evaluate_hotplug_ost(handle, type,
-					  ACPI_OST_SC_NON_SPECIFIC_FAILURE,
-					  NULL);
-}
-
-void __acpi_bus_hot_remove_device(struct acpi_device *device, u32 ost_src)
-{
-	acpi_handle handle = device->handle;
-	int error;
-
-	lock_device_hotplug();
-	mutex_lock(&acpi_scan_lock);
-
-	error = acpi_scan_hot_remove(device);
-	if (error && handle)
-		acpi_evaluate_hotplug_ost(handle, ost_src,
-					  ACPI_OST_SC_NON_SPECIFIC_FAILURE,
-					  NULL);
-
-	mutex_unlock(&acpi_scan_lock);
-	unlock_device_hotplug();
-}
+	if (ACPI_SUCCESS(status))
+		return;
 
-/**
- * acpi_bus_hot_remove_device: Hot-remove a device and its children.
- * @context: Address of the ACPI device object to hot-remove.
- */
-void acpi_bus_hot_remove_device(void *context)
-{
-	__acpi_bus_hot_remove_device(context, ACPI_NOTIFY_EJECT_REQUEST);
+ err_out:
+	acpi_evaluate_hotplug_ost(handle, type,
+				  ACPI_OST_SC_NON_SPECIFIC_FAILURE, NULL);
 }
 
 static ssize_t real_power_state_show(struct device *dev,
@@ -496,7 +488,7 @@ static DEVICE_ATTR(power_state, 0444, power_state_show, NULL);
 
 static void acpi_eject_store_work(void *context)
 {
-	__acpi_bus_hot_remove_device(context, ACPI_OST_EC_OSPM_EJECT);
+	acpi_bus_device_eject(context, ACPI_OST_EC_OSPM_EJECT);
 }
 
 static ssize_t
-- 
cgit 


From 43d388832bd3e413e9b5e6f3caef4b0844b901af Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 7 Nov 2013 01:42:09 +0100
Subject: ACPI / hotplug: Carry out PCI root eject directly

Since _handle_hotplug_event_root() is run from the ACPI hotplug
workqueue, it doesn't need to queue up a work item to eject a PCI
host bridge on the same workqueue.  Instead, it can just carry out
the eject by calling acpi_bus_device_eject() directly, so make that
happen.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/internal.h |  2 +-
 drivers/acpi/pci_root.c | 24 ++++++++++--------------
 drivers/acpi/scan.c     |  4 ++--
 3 files changed, 13 insertions(+), 17 deletions(-)

diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 6c79ae69d344..80cd1a10c4c3 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -87,7 +87,7 @@ void acpi_device_add_finalize(struct acpi_device *device);
 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
 int acpi_bind_one(struct device *dev, acpi_handle handle);
 int acpi_unbind_one(struct device *dev);
-void acpi_bus_hot_remove_device(void *context);
+void acpi_bus_device_eject(struct acpi_device *device, u32 ost_src);
 
 /* --------------------------------------------------------------------------
                                   Power Resource
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index add408b07c93..d77f0bf7eda0 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -592,16 +592,6 @@ static void handle_root_bridge_insertion(acpi_handle handle)
 		acpi_handle_err(handle, "cannot add bridge to acpi list\n");
 }
 
-static void handle_root_bridge_removal(struct acpi_device *device)
-{
-	acpi_status status;
-
-	get_device(&device->dev);
-	status = acpi_os_hotplug_execute(acpi_bus_hot_remove_device, device);
-	if (ACPI_FAILURE(status))
-		put_device(&device->dev);
-}
-
 static void _handle_hotplug_event_root(struct work_struct *work)
 {
 	struct acpi_pci_root *root;
@@ -612,6 +602,7 @@ static void _handle_hotplug_event_root(struct work_struct *work)
 	hp_work = container_of(work, struct acpi_hp_work, work);
 	handle = hp_work->handle;
 	type = hp_work->type;
+	kfree(hp_work); /* allocated in handle_hotplug_event_bridge */
 
 	acpi_scan_lock_acquire();
 
@@ -641,9 +632,15 @@ static void _handle_hotplug_event_root(struct work_struct *work)
 		/* request device eject */
 		acpi_handle_printk(KERN_DEBUG, handle,
 				   "Device eject notify on %s\n", __func__);
-		if (root)
-			handle_root_bridge_removal(root->device);
-		break;
+		if (!root)
+			break;
+
+		get_device(&root->device->dev);
+
+		acpi_scan_lock_release();
+
+		acpi_bus_device_eject(root->device, ACPI_NOTIFY_EJECT_REQUEST);
+		return;
 	default:
 		acpi_handle_warn(handle,
 				 "notify_handler: unknown event type 0x%x\n",
@@ -652,7 +649,6 @@ static void _handle_hotplug_event_root(struct work_struct *work)
 	}
 
 	acpi_scan_lock_release();
-	kfree(hp_work); /* allocated in handle_hotplug_event_bridge */
 }
 
 static void handle_hotplug_event_root(acpi_handle handle, u32 type,
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 4a0a591feed3..c7317fe213bf 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -285,7 +285,7 @@ static int acpi_scan_hot_remove(struct acpi_device *device)
 	return 0;
 }
 
-static void acpi_bus_device_eject(struct acpi_device *device, u32 ost_src)
+void acpi_bus_device_eject(struct acpi_device *device, u32 ost_src)
 {
 	acpi_handle handle = device->handle;
 	struct acpi_scan_handler *handler;
@@ -409,7 +409,7 @@ static void acpi_hotplug_unsupported(acpi_handle handle, u32 type)
  * acpi_bus_hot_remove_device: Hot-remove a device and its children.
  * @context: Address of the ACPI device object to hot-remove.
  */
-void acpi_bus_hot_remove_device(void *context)
+static void acpi_bus_hot_remove_device(void *context)
 {
 	acpi_bus_device_eject(context, ACPI_NOTIFY_EJECT_REQUEST);
 }
-- 
cgit 


From 176a88d79d6b5aebabaff16734e8b3107efcaaad Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 7 Nov 2013 01:42:17 +0100
Subject: ACPI / hotplug: Do not execute "insert in progress" _OST

According to the ACPI spec (5.0, Section 6.3.5), the "Device
insertion in progress (pending)" (0x80) _OST status code is
reserved for the "Insertion Processing" (0x200) source event
which is "a result of an OSPM action".  Specifically, it is not
a notification, so that status code should not be used during
notification processing, which unfortunately is done by
acpi_scan_bus_device_check().

For this reason, drop the ACPI_OST_SC_INSERT_IN_PROGRESS _OST
status evaluation from there (it was a mistake to put it in there
in the first place).

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: All applicable <stable@vger.kernel.org>
---
 drivers/acpi/scan.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index c7317fe213bf..5cd7f8c5666a 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -343,8 +343,6 @@ static void acpi_scan_bus_device_check(acpi_handle handle, u32 ost_source)
 			goto out;
 		}
 	}
-	acpi_evaluate_hotplug_ost(handle, ost_source,
-				  ACPI_OST_SC_INSERT_IN_PROGRESS, NULL);
 	error = acpi_bus_scan(handle);
 	if (error) {
 		acpi_handle_warn(handle, "Namespace scan failure\n");
-- 
cgit 


From 94f69966faf8e70bd655ea25f9dd5b9400567b75 Mon Sep 17 00:00:00 2001
From: Jacob Pan <jacob.jun.pan@linux.intel.com>
Date: Mon, 14 Oct 2013 16:02:27 -0700
Subject: tools/thermal: Introduce tmon, a tool for thermal subsystem

Increasingly, Linux is running on thermally constrained devices. The simple
thermal relationship between processor and fan has become past for modern
computers.

As hardware vendors cope with the thermal constraints on their products,
more sensors are added, new cooling capabilities are introduced. The
complexity of the thermal relationship can grow exponentially among cooling
devices, zones, sensors, and trip points. They can also change dynamically.

To expose such relationship to the userspace, Linux generic thermal layer
introduced sysfs entry at /sys/class/thermal with a matrix of symbolic
links, trip point bindings, and device instances. To traverse such
matrix by hand is not a trivial task. Testing is also difficult in that
thermal conditions are often exception cases that hard to reach in
normal operations.

TMON is conceived as a tool to help visualize, tune, and test the
complex thermal subsystem.

Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
---
 tools/Makefile              |  15 +-
 tools/thermal/tmon/Makefile |  47 ++++
 tools/thermal/tmon/README   |  50 ++++
 tools/thermal/tmon/pid.c    | 131 +++++++++
 tools/thermal/tmon/sysfs.c  | 596 +++++++++++++++++++++++++++++++++++++++++
 tools/thermal/tmon/tmon.8   | 142 ++++++++++
 tools/thermal/tmon/tmon.c   | 352 ++++++++++++++++++++++++
 tools/thermal/tmon/tmon.h   | 204 ++++++++++++++
 tools/thermal/tmon/tui.c    | 638 ++++++++++++++++++++++++++++++++++++++++++++
 9 files changed, 2173 insertions(+), 2 deletions(-)
 create mode 100644 tools/thermal/tmon/Makefile
 create mode 100644 tools/thermal/tmon/README
 create mode 100644 tools/thermal/tmon/pid.c
 create mode 100644 tools/thermal/tmon/sysfs.c
 create mode 100644 tools/thermal/tmon/tmon.8
 create mode 100644 tools/thermal/tmon/tmon.c
 create mode 100644 tools/thermal/tmon/tmon.h
 create mode 100644 tools/thermal/tmon/tui.c

diff --git a/tools/Makefile b/tools/Makefile
index 41067f304215..a9b02008443c 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -15,6 +15,7 @@ help:
 	@echo '  net        - misc networking tools'
 	@echo '  vm         - misc vm tools'
 	@echo '  x86_energy_perf_policy - Intel energy policy tool'
+	@echo '  tmon       - thermal monitoring and tuning tool'
 	@echo ''
 	@echo 'You can do:'
 	@echo ' $$ make -C tools/ <tool>_install'
@@ -50,6 +51,9 @@ selftests: FORCE
 turbostat x86_energy_perf_policy: FORCE
 	$(call descend,power/x86/$@)
 
+tmon: FORCE
+	$(call descend,thermal/$@)
+
 cpupower_install:
 	$(call descend,power/$(@:_install=),install)
 
@@ -62,9 +66,13 @@ selftests_install:
 turbostat_install x86_energy_perf_policy_install:
 	$(call descend,power/x86/$(@:_install=),install)
 
+tmon_install:
+	$(call descend,thermal/$(@:_install=),install)
+
 install: cgroup_install cpupower_install firewire_install lguest_install \
 		perf_install selftests_install turbostat_install usb_install \
-		virtio_install vm_install net_install x86_energy_perf_policy_install
+		virtio_install vm_install net_install x86_energy_perf_policy_install \
+	tmon
 
 cpupower_clean:
 	$(call descend,power/cpupower,clean)
@@ -84,8 +92,11 @@ selftests_clean:
 turbostat_clean x86_energy_perf_policy_clean:
 	$(call descend,power/x86/$(@:_clean=),clean)
 
+tmon_clean:
+	$(call descend,thermal/tmon,clean)
+
 clean: cgroup_clean cpupower_clean firewire_clean lguest_clean perf_clean \
 		selftests_clean turbostat_clean usb_clean virtio_clean \
-		vm_clean net_clean x86_energy_perf_policy_clean
+		vm_clean net_clean x86_energy_perf_policy_clean tmon_clean
 
 .PHONY: FORCE
diff --git a/tools/thermal/tmon/Makefile b/tools/thermal/tmon/Makefile
new file mode 100644
index 000000000000..447321104ec0
--- /dev/null
+++ b/tools/thermal/tmon/Makefile
@@ -0,0 +1,47 @@
+VERSION = 1.0
+
+BINDIR=usr/bin
+WARNFLAGS=-Wall -Wshadow -W -Wformat -Wimplicit-function-declaration -Wimplicit-int
+CFLAGS= -O1 ${WARNFLAGS} -fstack-protector
+CC=gcc
+
+CFLAGS+=-D VERSION=\"$(VERSION)\"
+LDFLAGS+=
+TARGET=tmon
+
+INSTALL_PROGRAM=install -m 755 -p
+DEL_FILE=rm -f
+
+INSTALL_CONFIGFILE=install -m 644 -p
+CONFIG_FILE=
+CONFIG_PATH=
+
+
+OBJS = tmon.o tui.o sysfs.o pid.o
+OBJS +=
+
+tmon: $(OBJS) Makefile tmon.h
+	$(CC) ${CFLAGS} $(LDFLAGS) $(OBJS)  -o $(TARGET) -lm -lpanel -lncursesw  -lpthread
+
+valgrind: tmon
+	 sudo valgrind -v --track-origins=yes --tool=memcheck --leak-check=yes --show-reachable=yes --num-callers=20 --track-fds=yes ./$(TARGET)  1> /dev/null
+
+install:
+	- mkdir -p $(INSTALL_ROOT)/$(BINDIR)
+	- $(INSTALL_PROGRAM) "$(TARGET)" "$(INSTALL_ROOT)/$(BINDIR)/$(TARGET)"
+	- mkdir -p $(INSTALL_ROOT)/$(CONFIG_PATH)
+	- $(INSTALL_CONFIGFILE) "$(CONFIG_FILE)" "$(INSTALL_ROOT)/$(CONFIG_PATH)"
+
+uninstall:
+	$(DEL_FILE) "$(INSTALL_ROOT)/$(BINDIR)/$(TARGET)"
+	$(CONFIG_FILE) "$(CONFIG_PATH)"
+
+
+clean:
+	find . -name "*.o" | xargs $(DEL_FILE)
+	rm -f $(TARGET)
+
+dist:
+	git tag v$(VERSION)
+	git archive --format=tar --prefix="$(TARGET)-$(VERSION)/" v$(VERSION) | \
+		gzip > $(TARGET)-$(VERSION).tar.gz
diff --git a/tools/thermal/tmon/README b/tools/thermal/tmon/README
new file mode 100644
index 000000000000..457949897a8e
--- /dev/null
+++ b/tools/thermal/tmon/README
@@ -0,0 +1,50 @@
+TMON - A Monitoring and Testing Tool for Linux kernel thermal subsystem
+
+Why TMON?
+==========
+Increasingly, Linux is running on thermally constrained devices. The simple
+thermal relationship between processor and fan has become past for modern
+computers.
+
+As hardware vendors cope with the thermal constraints on their products, more
+and more sensors are added, new cooling capabilities are introduced. The
+complexity of the thermal relationship can grow exponentially among cooling
+devices, zones, sensors, and trip points. They can also change dynamically.
+
+To expose such relationship to the userspace, Linux generic thermal layer
+introduced sysfs entry at /sys/class/thermal with a matrix of symbolic
+links, trip point bindings, and device instances. To traverse such
+matrix by hand is not a trivial task. Testing is also difficult in that
+thermal conditions are often exception cases that hard to reach in
+normal operations.
+
+TMON is conceived as a tool to help visualize, tune, and test the
+complex thermal subsystem.
+
+Files
+=====
+	tmon.c : main function for set up and configurations.
+	tui.c : handles ncurses based user interface
+	sysfs.c : access to the generic thermal sysfs
+	pid.c : a proportional-integral-derivative (PID) controller
+	that can be used for thermal relationship training.
+
+Requirements
+============
+Depends on ncurses
+
+Build
+=========
+$ make
+$ sudo ./tmon -h
+Usage: tmon [OPTION...]
+  -c, --control         cooling device in control
+  -d, --daemon          run as daemon, no TUI
+  -l, --log             log data to /var/tmp/tmon.log
+  -h, --help            show this help message
+  -t, --time-interval   set time interval for sampling
+  -v, --version         show version
+  -g, --debug           debug message in syslog
+
+1. For monitoring only:
+$ sudo ./tmon
diff --git a/tools/thermal/tmon/pid.c b/tools/thermal/tmon/pid.c
new file mode 100644
index 000000000000..fd7e9e9d6f4a
--- /dev/null
+++ b/tools/thermal/tmon/pid.c
@@ -0,0 +1,131 @@
+/*
+ * pid.c PID controller for testing cooling devices
+ *
+ *
+ *
+ * Copyright (C) 2012 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 or later as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Author Name Jacob Pan <jacob.jun.pan@linux.intel.com>
+ *
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <libintl.h>
+#include <ctype.h>
+#include <assert.h>
+#include <time.h>
+#include <limits.h>
+#include <math.h>
+#include <sys/stat.h>
+#include <syslog.h>
+
+#include "tmon.h"
+
+/**************************************************************************
+ * PID (Proportional-Integral-Derivative) controller is commonly used in
+ * linear control system, consider the the process.
+ * G(s) = U(s)/E(s)
+ * kp = proportional gain
+ * ki = integral gain
+ * kd = derivative gain
+ * Ts
+ * We use type C Alan Bradley equation which takes set point off the
+ * output dependency in P and D term.
+ *
+ *   y[k] = y[k-1] - kp*(x[k] - x[k-1]) + Ki*Ts*e[k] - Kd*(x[k]
+ *          - 2*x[k-1]+x[k-2])/Ts
+ *
+ *
+ ***********************************************************************/
+struct pid_params p_param;
+/* cached data from previous loop */
+static double xk_1, xk_2; /* input temperature x[k-#] */
+
+/*
+ * TODO: make PID parameters tuned automatically,
+ * 1. use CPU burn to produce open loop unit step response
+ * 2. calculate PID based on Ziegler-Nichols rule
+ *
+ * add a flag for tuning PID
+ */
+int init_thermal_controller(void)
+{
+	int ret = 0;
+
+	/* init pid params */
+	p_param.ts = ticktime;
+	/* TODO: get it from TUI tuning tab */
+	p_param.kp = .36;
+	p_param.ki = 5.0;
+	p_param.kd = 0.19;
+
+	p_param.t_target = target_temp_user;
+
+	return ret;
+}
+
+void controller_reset(void)
+{
+	/* TODO: relax control data when not over thermal limit */
+	syslog(LOG_DEBUG, "TC inactive, relax p-state\n");
+	p_param.y_k = 0.0;
+	xk_1 = 0.0;
+	xk_2 = 0.0;
+	set_ctrl_state(0);
+}
+
+/* To be called at time interval Ts. Type C PID controller.
+ *    y[k] = y[k-1] - kp*(x[k] - x[k-1]) + Ki*Ts*e[k] - Kd*(x[k]
+ *          - 2*x[k-1]+x[k-2])/Ts
+ * TODO: add low pass filter for D term
+ */
+#define GUARD_BAND (2)
+void controller_handler(const double xk, double *yk)
+{
+	double ek;
+	double p_term, i_term, d_term;
+
+	ek = p_param.t_target - xk; /* error */
+	if (ek >= 3.0) {
+		syslog(LOG_DEBUG, "PID: %3.1f Below set point %3.1f, stop\n",
+			xk, p_param.t_target);
+		controller_reset();
+		*yk = 0.0;
+		return;
+	}
+	/* compute intermediate PID terms */
+	p_term = -p_param.kp * (xk - xk_1);
+	i_term = p_param.kp * p_param.ki * p_param.ts * ek;
+	d_term = -p_param.kp * p_param.kd * (xk - 2 * xk_1 + xk_2) / p_param.ts;
+	/* compute output */
+	*yk += p_term + i_term + d_term;
+	/* update sample data */
+	xk_1 = xk;
+	xk_2 = xk_1;
+
+	/* clamp output adjustment range */
+	if (*yk < -LIMIT_HIGH)
+		*yk = -LIMIT_HIGH;
+	else if (*yk > -LIMIT_LOW)
+		*yk = -LIMIT_LOW;
+
+	p_param.y_k = *yk;
+
+	set_ctrl_state(lround(fabs(p_param.y_k)));
+
+}
diff --git a/tools/thermal/tmon/sysfs.c b/tools/thermal/tmon/sysfs.c
new file mode 100644
index 000000000000..dfe454855cd2
--- /dev/null
+++ b/tools/thermal/tmon/sysfs.c
@@ -0,0 +1,596 @@
+/*
+ * sysfs.c sysfs ABI access functions for TMON program
+ *
+ * Copyright (C) 2013 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 or later as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Author: Jacob Pan <jacob.jun.pan@linux.intel.com>
+ *
+ */
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <dirent.h>
+#include <libintl.h>
+#include <ctype.h>
+#include <time.h>
+#include <syslog.h>
+#include <sys/time.h>
+#include <errno.h>
+
+#include "tmon.h"
+
+struct tmon_platform_data ptdata;
+const char *trip_type_name[] = {
+	"critical",
+	"hot",
+	"passive",
+	"active",
+};
+
+int sysfs_set_ulong(char *path, char *filename, unsigned long val)
+{
+	FILE *fd;
+	int ret = -1;
+	char filepath[256];
+
+	snprintf(filepath, 256, "%s/%s", path, filename);
+
+	fd = fopen(filepath, "w");
+	if (!fd) {
+		syslog(LOG_ERR, "Err: open %s: %s\n", __func__, filepath);
+		return ret;
+	}
+	ret = fprintf(fd, "%lu", val);
+	fclose(fd);
+
+	return 0;
+}
+
+/* history of thermal data, used for control algo */
+#define NR_THERMAL_RECORDS 3
+struct thermal_data_record trec[NR_THERMAL_RECORDS];
+int cur_thermal_record; /* index to the trec array */
+
+static int sysfs_get_ulong(char *path, char *filename, unsigned long *p_ulong)
+{
+	FILE *fd;
+	int ret = -1;
+	char filepath[256];
+
+	snprintf(filepath, 256, "%s/%s", path, filename);
+
+	fd = fopen(filepath, "r");
+	if (!fd) {
+		syslog(LOG_ERR, "Err: open %s: %s\n", __func__, filepath);
+		return ret;
+	}
+	ret = fscanf(fd, "%lu", p_ulong);
+	fclose(fd);
+
+	return 0;
+}
+
+static int sysfs_get_string(char *path, char *filename, char *str)
+{
+	FILE *fd;
+	int ret = -1;
+	char filepath[256];
+
+	snprintf(filepath, 256, "%s/%s", path, filename);
+
+	fd = fopen(filepath, "r");
+	if (!fd) {
+		syslog(LOG_ERR, "Err: open %s: %s\n", __func__, filepath);
+		return ret;
+	}
+	ret = fscanf(fd, "%256s", str);
+	fclose(fd);
+
+	return ret;
+}
+
+/* get states of the cooling device instance */
+static int probe_cdev(struct cdev_info *cdi, char *path)
+{
+	sysfs_get_string(path, "type", cdi->type);
+	sysfs_get_ulong(path, "max_state",  &cdi->max_state);
+	sysfs_get_ulong(path, "cur_state", &cdi->cur_state);
+
+	syslog(LOG_INFO, "%s: %s: type %s, max %lu, curr %lu inst %d\n",
+		__func__, path,
+		cdi->type, cdi->max_state, cdi->cur_state, cdi->instance);
+
+	return 0;
+}
+
+static int str_to_trip_type(char *name)
+{
+	int i;
+
+	for (i = 0; i < NR_THERMAL_TRIP_TYPE; i++) {
+		if (!strcmp(name, trip_type_name[i]))
+			return i;
+	}
+
+	return -ENOENT;
+}
+
+/* scan and fill in trip point info for a thermal zone and trip point id */
+static int get_trip_point_data(char *tz_path, int tzid, int tpid)
+{
+	char filename[256];
+	char temp_str[256];
+	int trip_type;
+
+	if (tpid >= MAX_NR_TRIP)
+		return -EINVAL;
+	/* check trip point type */
+	snprintf(filename, sizeof(filename), "trip_point_%d_type", tpid);
+	sysfs_get_string(tz_path, filename, temp_str);
+	trip_type = str_to_trip_type(temp_str);
+	if (trip_type < 0) {
+		syslog(LOG_ERR, "%s:%s no matching type\n", __func__, temp_str);
+		return -ENOENT;
+	}
+	ptdata.tzi[tzid].tp[tpid].type = trip_type;
+	syslog(LOG_INFO, "%s:tz:%d tp:%d:type:%s type id %d\n", __func__, tzid,
+		tpid, temp_str, trip_type);
+
+	/* TODO: check attribute */
+
+	return 0;
+}
+
+/* return instance id for file format such as trip_point_4_temp */
+static int get_instance_id(char *name, int pos, int skip)
+{
+	char *ch;
+	int i = 0;
+
+	ch = strtok(name, "_");
+	while (ch != NULL) {
+		++i;
+		syslog(LOG_INFO, "%s:%s:%s:%d", __func__, name, ch, i);
+		ch = strtok(NULL, "_");
+		if (pos == i)
+			return atol(ch + skip);
+	}
+
+	return -1;
+}
+
+/* Find trip point info of a thermal zone */
+static int find_tzone_tp(char *tz_name, char *d_name, struct tz_info *tzi,
+			int tz_id)
+{
+	int tp_id;
+	unsigned long temp_ulong;
+
+	if (strstr(d_name, "trip_point") &&
+		strstr(d_name, "temp")) {
+		/* check if trip point temp is non-zero
+		 * ignore 0/invalid trip points
+		 */
+		sysfs_get_ulong(tz_name, d_name, &temp_ulong);
+		if (temp_ulong < MAX_TEMP_KC) {
+			tzi->nr_trip_pts++;
+			/* found a valid trip point */
+			tp_id = get_instance_id(d_name, 2, 0);
+			syslog(LOG_DEBUG, "tzone %s trip %d temp %lu tpnode %s",
+				tz_name, tp_id, temp_ulong, d_name);
+			if (tp_id < 0 || tp_id >= MAX_NR_TRIP) {
+				syslog(LOG_ERR, "Failed to find TP inst %s\n",
+					d_name);
+				return -1;
+			}
+			get_trip_point_data(tz_name, tz_id, tp_id);
+			tzi->tp[tp_id].temp = temp_ulong;
+		}
+	}
+
+	return 0;
+}
+
+/* check cooling devices for binding info. */
+static int find_tzone_cdev(struct dirent *nl, char *tz_name,
+			struct tz_info *tzi, int tz_id, int cid)
+{
+	unsigned long trip_instance = 0;
+	char cdev_name_linked[256];
+	char cdev_name[256];
+	char cdev_trip_name[256];
+	int cdev_id;
+
+	if (nl->d_type == DT_LNK) {
+		syslog(LOG_DEBUG, "TZ%d: cdev: %s cid %d\n", tz_id, nl->d_name,
+			cid);
+		tzi->nr_cdev++;
+		if (tzi->nr_cdev > ptdata.nr_cooling_dev) {
+			syslog(LOG_ERR, "Err: Too many cdev? %d\n",
+				tzi->nr_cdev);
+			return -EINVAL;
+		}
+		/* find the link to real cooling device record binding */
+		snprintf(cdev_name, 256, "%s/%s", tz_name, nl->d_name);
+		memset(cdev_name_linked, 0, sizeof(cdev_name_linked));
+		if (readlink(cdev_name, cdev_name_linked,
+				sizeof(cdev_name_linked) - 1) != -1) {
+			cdev_id = get_instance_id(cdev_name_linked, 1,
+						sizeof("device") - 1);
+			syslog(LOG_DEBUG, "cdev %s linked to %s : %d\n",
+				cdev_name, cdev_name_linked, cdev_id);
+			tzi->cdev_binding |= (1 << cdev_id);
+
+			/* find the trip point in which the cdev is binded to
+			 * in this tzone
+			 */
+			snprintf(cdev_trip_name, 256, "%s%s", nl->d_name,
+				"_trip_point");
+			sysfs_get_ulong(tz_name, cdev_trip_name,
+					&trip_instance);
+			/* validate trip point range, e.g. trip could return -1
+			 * when passive is enabled
+			 */
+			if (trip_instance > MAX_NR_TRIP)
+				trip_instance = 0;
+			tzi->trip_binding[cdev_id] |= 1 << trip_instance;
+			syslog(LOG_DEBUG, "cdev %s -> trip:%lu: 0x%lx %d\n",
+				cdev_name, trip_instance,
+				tzi->trip_binding[cdev_id],
+				cdev_id);
+
+
+		}
+		return 0;
+	}
+
+	return -ENODEV;
+}
+
+
+
+/*****************************************************************************
+ * Before calling scan_tzones, thermal sysfs must be probed to determine
+ * the number of thermal zones and cooling devices.
+ * We loop through each thermal zone and fill in tz_info struct, i.e.
+ * ptdata.tzi[]
+root@jacob-chiefriver:~# tree -d /sys/class/thermal/thermal_zone0
+/sys/class/thermal/thermal_zone0
+|-- cdev0 -> ../cooling_device4
+|-- cdev1 -> ../cooling_device3
+|-- cdev10 -> ../cooling_device7
+|-- cdev11 -> ../cooling_device6
+|-- cdev12 -> ../cooling_device5
+|-- cdev2 -> ../cooling_device2
+|-- cdev3 -> ../cooling_device1
+|-- cdev4 -> ../cooling_device0
+|-- cdev5 -> ../cooling_device12
+|-- cdev6 -> ../cooling_device11
+|-- cdev7 -> ../cooling_device10
+|-- cdev8 -> ../cooling_device9
+|-- cdev9 -> ../cooling_device8
+|-- device -> ../../../LNXSYSTM:00/device:62/LNXTHERM:00
+|-- power
+`-- subsystem -> ../../../../class/thermal
+*****************************************************************************/
+static int scan_tzones(void)
+{
+	DIR *dir;
+	struct dirent **namelist;
+	char tz_name[256];
+	int i, j, n, k = 0;
+
+	if (!ptdata.nr_tz_sensor)
+		return -1;
+
+	for (i = 0; i <= ptdata.max_tz_instance; i++) {
+		memset(tz_name, 0, sizeof(tz_name));
+		snprintf(tz_name, 256, "%s/%s%d", THERMAL_SYSFS, TZONE, i);
+
+		dir = opendir(tz_name);
+		if (!dir) {
+			syslog(LOG_INFO, "Thermal zone %s skipped\n", tz_name);
+			continue;
+		}
+		/* keep track of valid tzones */
+		n = scandir(tz_name, &namelist, 0, alphasort);
+		if (n < 0)
+			syslog(LOG_ERR, "scandir failed in %s",  tz_name);
+		else {
+			sysfs_get_string(tz_name, "type", ptdata.tzi[k].type);
+			ptdata.tzi[k].instance = i;
+			/* detect trip points and cdev attached to this tzone */
+			j = 0; /* index for cdev */
+			ptdata.tzi[k].nr_cdev = 0;
+			ptdata.tzi[k].nr_trip_pts = 0;
+			while (n--) {
+				char *temp_str;
+
+				if (find_tzone_tp(tz_name, namelist[n]->d_name,
+							&ptdata.tzi[k], k))
+					break;
+				temp_str = strstr(namelist[n]->d_name, "cdev");
+				if (!temp_str) {
+					free(namelist[n]);
+					continue;
+				}
+				if (!find_tzone_cdev(namelist[n], tz_name,
+							&ptdata.tzi[k], i, j))
+					j++; /* increment cdev index */
+				free(namelist[n]);
+			}
+			free(namelist);
+		}
+		/*TODO: reverse trip points */
+		closedir(dir);
+		syslog(LOG_INFO, "TZ %d has %d cdev\n",	i,
+			ptdata.tzi[k].nr_cdev);
+		k++;
+	}
+
+	return 0;
+}
+
+static int scan_cdevs(void)
+{
+	DIR *dir;
+	struct dirent **namelist;
+	char cdev_name[256];
+	int i, n, k = 0;
+
+	if (!ptdata.nr_cooling_dev) {
+		fprintf(stderr, "No cooling devices found\n");
+		return 0;
+	}
+	for (i = 0; i <= ptdata.max_cdev_instance; i++) {
+		memset(cdev_name, 0, sizeof(cdev_name));
+		snprintf(cdev_name, 256, "%s/%s%d", THERMAL_SYSFS, CDEV, i);
+
+		dir = opendir(cdev_name);
+		if (!dir) {
+			syslog(LOG_INFO, "Cooling dev %s skipped\n", cdev_name);
+			/* there is a gap in cooling device id, check again
+			 * for the same index.
+			 */
+			continue;
+		}
+
+		n = scandir(cdev_name, &namelist, 0, alphasort);
+		if (n < 0)
+			syslog(LOG_ERR, "scandir failed in %s",  cdev_name);
+		else {
+			sysfs_get_string(cdev_name, "type", ptdata.cdi[k].type);
+			ptdata.cdi[k].instance = i;
+			if (strstr(ptdata.cdi[k].type, ctrl_cdev)) {
+				ptdata.cdi[k].flag |= CDEV_FLAG_IN_CONTROL;
+				syslog(LOG_DEBUG, "control cdev id %d\n", i);
+			}
+			while (n--)
+				free(namelist[n]);
+			free(namelist);
+		}
+		closedir(dir);
+		k++;
+	}
+	return 0;
+}
+
+
+int probe_thermal_sysfs(void)
+{
+	DIR *dir;
+	struct dirent **namelist;
+	int n;
+
+	dir = opendir(THERMAL_SYSFS);
+	if (!dir) {
+		fprintf(stderr, "\nNo thermal sysfs, exit\n");
+		return -1;
+	}
+	n = scandir(THERMAL_SYSFS, &namelist, 0, alphasort);
+	if (n < 0)
+		syslog(LOG_ERR, "scandir failed in thermal sysfs");
+	else {
+		/* detect number of thermal zones and cooling devices */
+		while (n--) {
+			int inst;
+
+			if (strstr(namelist[n]->d_name, CDEV)) {
+				inst = get_instance_id(namelist[n]->d_name, 1,
+						sizeof("device") - 1);
+				/* keep track of the max cooling device since
+				 * there may be gaps.
+				 */
+				if (inst > ptdata.max_cdev_instance)
+					ptdata.max_cdev_instance = inst;
+
+				syslog(LOG_DEBUG, "found cdev: %s %d %d\n",
+					namelist[n]->d_name,
+					ptdata.nr_cooling_dev,
+					ptdata.max_cdev_instance);
+				ptdata.nr_cooling_dev++;
+			} else if (strstr(namelist[n]->d_name, TZONE)) {
+				inst = get_instance_id(namelist[n]->d_name, 1,
+						sizeof("zone") - 1);
+				if (inst > ptdata.max_tz_instance)
+					ptdata.max_tz_instance = inst;
+
+				syslog(LOG_DEBUG, "found tzone: %s %d %d\n",
+					namelist[n]->d_name,
+					ptdata.nr_tz_sensor,
+					ptdata.max_tz_instance);
+				ptdata.nr_tz_sensor++;
+			}
+			free(namelist[n]);
+		}
+		free(namelist);
+	}
+	syslog(LOG_INFO, "found %d tzone(s), %d cdev(s), target zone %d\n",
+		ptdata.nr_tz_sensor, ptdata.nr_cooling_dev,
+		target_thermal_zone);
+	closedir(dir);
+
+	if (!ptdata.nr_tz_sensor) {
+		fprintf(stderr, "\nNo thermal zones found, exit\n\n");
+		return -1;
+	}
+
+	ptdata.tzi = calloc(sizeof(struct tz_info), ptdata.max_tz_instance+1);
+	if (!ptdata.tzi) {
+		fprintf(stderr, "Err: allocate tz_info\n");
+		return -1;
+	}
+
+	/* we still show thermal zone information if there is no cdev */
+	if (ptdata.nr_cooling_dev) {
+		ptdata.cdi = calloc(sizeof(struct cdev_info),
+				ptdata.max_cdev_instance + 1);
+		if (!ptdata.cdi) {
+			free(ptdata.tzi);
+			fprintf(stderr, "Err: allocate cdev_info\n");
+			return -1;
+		}
+	}
+
+	/* now probe tzones */
+	if (scan_tzones())
+		return -1;
+	if (scan_cdevs())
+		return -1;
+	return 0;
+}
+
+/* convert sysfs zone instance to zone array index */
+int zone_instance_to_index(int zone_inst)
+{
+	int i;
+
+	for (i = 0; i < ptdata.nr_tz_sensor; i++)
+		if (ptdata.tzi[i].instance == zone_inst)
+			return i;
+	return -ENOENT;
+}
+
+/* read temperature of all thermal zones */
+int update_thermal_data()
+{
+	int i;
+	char tz_name[256];
+	static unsigned long samples;
+
+	if (!ptdata.nr_tz_sensor) {
+		syslog(LOG_ERR, "No thermal zones found!\n");
+		return -1;
+	}
+
+	/* circular buffer for keeping historic data */
+	if (cur_thermal_record >= NR_THERMAL_RECORDS)
+		cur_thermal_record = 0;
+	gettimeofday(&trec[cur_thermal_record].tv, NULL);
+	if (tmon_log) {
+		fprintf(tmon_log, "%lu ", ++samples);
+		fprintf(tmon_log, "%3.1f ", p_param.t_target);
+	}
+	for (i = 0; i < ptdata.nr_tz_sensor; i++) {
+		memset(tz_name, 0, sizeof(tz_name));
+		snprintf(tz_name, 256, "%s/%s%d", THERMAL_SYSFS, TZONE,
+			ptdata.tzi[i].instance);
+		sysfs_get_ulong(tz_name, "temp",
+				&trec[cur_thermal_record].temp[i]);
+		if (tmon_log)
+			fprintf(tmon_log, "%lu ",
+				trec[cur_thermal_record].temp[i]/1000);
+	}
+	for (i = 0; i < ptdata.nr_cooling_dev; i++) {
+		char cdev_name[256];
+		unsigned long val;
+
+		snprintf(cdev_name, 256, "%s/%s%d", THERMAL_SYSFS, CDEV,
+			ptdata.cdi[i].instance);
+		probe_cdev(&ptdata.cdi[i], cdev_name);
+		val = ptdata.cdi[i].cur_state;
+		if (val > 1000000)
+			val = 0;
+		if (tmon_log)
+			fprintf(tmon_log, "%lu ", val);
+	}
+
+	if (tmon_log) {
+		fprintf(tmon_log, "\n");
+		fflush(tmon_log);
+	}
+
+	return 0;
+}
+
+void set_ctrl_state(unsigned long state)
+{
+	char ctrl_cdev_path[256];
+	int i;
+	unsigned long cdev_state;
+
+	if (no_control)
+		return;
+	/* set all ctrl cdev to the same state */
+	for (i = 0; i < ptdata.nr_cooling_dev; i++) {
+		if (ptdata.cdi[i].flag & CDEV_FLAG_IN_CONTROL) {
+			if (ptdata.cdi[i].max_state < 10) {
+				strcpy(ctrl_cdev, "None.");
+				return;
+			}
+			/* scale to percentage of max_state */
+			cdev_state = state * ptdata.cdi[i].max_state/100;
+			syslog(LOG_DEBUG,
+				"ctrl cdev %d set state %lu scaled to %lu\n",
+				ptdata.cdi[i].instance, state, cdev_state);
+			snprintf(ctrl_cdev_path, 256, "%s/%s%d", THERMAL_SYSFS,
+				CDEV, ptdata.cdi[i].instance);
+			syslog(LOG_DEBUG, "ctrl cdev path %s", ctrl_cdev_path);
+			sysfs_set_ulong(ctrl_cdev_path, "cur_state",
+					cdev_state);
+		}
+	}
+}
+
+void get_ctrl_state(unsigned long *state)
+{
+	char ctrl_cdev_path[256];
+	int ctrl_cdev_id = -1;
+	int i;
+
+	/* TODO: take average of all ctrl types. also consider change based on
+	 * uevent. Take the first reading for now.
+	 */
+	for (i = 0; i < ptdata.nr_cooling_dev; i++) {
+		if (ptdata.cdi[i].flag & CDEV_FLAG_IN_CONTROL) {
+			ctrl_cdev_id = ptdata.cdi[i].instance;
+			syslog(LOG_INFO, "ctrl cdev %d get state\n",
+				ptdata.cdi[i].instance);
+			break;
+		}
+	}
+	if (ctrl_cdev_id == -1) {
+		*state = 0;
+		return;
+	}
+	snprintf(ctrl_cdev_path, 256, "%s/%s%d", THERMAL_SYSFS,
+		CDEV, ctrl_cdev_id);
+	sysfs_get_ulong(ctrl_cdev_path, "cur_state", state);
+}
+
+void free_thermal_data(void)
+{
+	free(ptdata.tzi);
+	free(ptdata.cdi);
+}
diff --git a/tools/thermal/tmon/tmon.8 b/tools/thermal/tmon/tmon.8
new file mode 100644
index 000000000000..0be727cb9892
--- /dev/null
+++ b/tools/thermal/tmon/tmon.8
@@ -0,0 +1,142 @@
+.TH TMON 8
+.SH NAME
+\fBtmon\fP - A monitoring and testing tool for Linux kernel thermal subsystem
+
+.SH SYNOPSIS
+.ft B
+.B tmon
+.RB [ Options ]
+.br
+.SH DESCRIPTION
+\fBtmon \fP can be used to visualize thermal relationship and
+real-time thermal data; tune
+and test cooling devices and sensors; collect thermal data for offline
+analysis and plot. \fBtmon\fP must be run as root in order to control device
+states via sysfs.
+.PP
+\fBFunctions\fP
+.PP
+.nf
+1. Thermal relationships:
+- show thermal zone information
+- show cooling device information
+- show trip point binding within each thermal zone
+- show trip point and cooling device instance bindings
+.PP
+2. Real time data display
+- show temperature of all thermal zones w.r.t. its trip points and types
+- show states of all cooling devices
+.PP
+3. Thermal relationship learning and device tuning
+- with a built-in Proportional Integral Derivative (\fBPID\fP)
+controller, user can pair a cooling device to a thermal sensor for
+testing the effectiveness and learn about the thermal distance between the two
+- allow manual control of cooling device states and target temperature
+.PP
+4. Data logging in /var/tmp/tmon.log
+- contains thermal configuration data, i.e. cooling device, thermal
+ zones, and trip points. Can be used for data  collection in remote
+ debugging.
+- log real-time thermal data into space separated format that can be
+ directly consumed by plotting tools such as Rscript.
+
+.SS Options
+.PP
+The \fB-c --control\fP option sets a cooling device type to control temperature
+of a thermal zone
+.PP
+The \fB-d --daemon\fP option runs \fBtmon \fP as daemon without user interface
+.PP
+The \fB-g --debug\fP option allow debug messages to be stored in syslog
+.PP
+The \fB-h --help\fP option shows help message
+.PP
+The \fB-l --log\fP option write data to /var/tmp/tmon.log
+.PP
+The \fB-t --time-interval\fP option sets the polling interval in seconds
+.PP
+The \fB-v --version\fP option shows the version of \fBtmon \fP
+.PP
+The \fB-z --zone\fP option sets the target therma zone instance to be controlled
+.PP
+
+.SH FIELD DESCRIPTIONS
+.nf
+.PP
+\fBP \fP passive cooling trip point type
+\fBA \fP active cooling trip point type (fan)
+\fBC \fP critical trip point type
+\fBA \fP hot trip point type
+\fBkp \fP proportional gain of \fBPID\fP controller
+\fBki \fP integral gain of \fBPID\fP controller
+\fBkd \fP derivative gain of \fBPID\fP controller
+
+.SH REQUIREMENT
+Build depends on ncurses
+.PP
+Runtime depends on window size large enough to show the number of
+devices found on the system.
+
+.PP
+
+.SH INTERACTIVE COMMANDS
+.pp
+.nf
+\fBCtrl-C, q/Q\fP stops \fBtmon\fP
+\fBTAB\fP shows tuning pop up panel, choose a letter to modify
+
+.SH EXAMPLES
+Without any parameters, tmon is in monitoring only mode and refresh
+screen every 1 second.
+.PP
+1. For monitoring only:
+.nf
+$ sudo ./tmon
+
+2. Use Processor cooling device to control thermal zone 0 at default 65C.
+$ sudo ./tmon -c Processor -z 0
+
+3. Use intel_powerclamp(idle injection) cooling device to control thermal zone 1
+$ sudo ./tmon -c intel_powerclamp -z 1
+
+4. Turn on debug and collect data log at /var/tmp/tmon.log
+$ sudo ./tmon -g -l
+
+For example, the log below shows PID controller was adjusting current states
+for all cooling devices with "Processor" type such that thermal zone 0
+can stay below 65 dC.
+
+#---------- THERMAL DATA LOG STARTED -----------
+Samples TargetTemp acpitz0    acpitz1    Fan0 Fan1 Fan2 Fan3 Fan4 Fan5
+Fan6 Fan7 Fan8 Fan9 Processor10 Processor11 Processor12 Processor13
+LCD14 intel_powerclamp15 1 65.0 65 65 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0 2
+65.0 66 65 0 0 0 0 0 0 0 0 0 0 4 4 4 4 6 0 3 65.0 60 54 0 0 0 0 0 0 0 0
+0 0 4 4 4 4 6 0 4 65.0 53 53 0 0 0 0 0 0 0 0 0 0 4 4 4 4 6 0
+5 65.0 52 52 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0
+6 65.0 53 65 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0
+7 65.0 68 70 0 0 0 0 0 0 0 0 0 0 0 0 0 0 6 0
+8 65.0 68 68 0 0 0 0 0 0 0 0 0 0 5 5 5 5 6 0
+9 65.0 68 68 0 0 0 0 0 0 0 0 0 0 6 6 6 6 6 0
+10 65.0 67 67 0 0 0 0 0 0 0 0 0 0 7 7 7 7 6 0
+11 65.0 67 67 0 0 0 0 0 0 0 0 0 0 8 8 8 8 6 0
+12 65.0 67 67 0 0 0 0 0 0 0 0 0 0 8 8 8 8 6 0
+13 65.0 67 67 0 0 0 0 0 0 0 0 0 0 9 9 9 9 6 0
+14 65.0 66 66 0 0 0 0 0 0 0 0 0 0 10 10 10 10 6 0
+15 65.0 66 67 0 0 0 0 0 0 0 0 0 0 10 10 10 10 6 0
+16 65.0 66 66 0 0 0 0 0 0 0 0 0 0 11 11 11 11 6 0
+17 65.0 66 66 0 0 0 0 0 0 0 0 0 0 11 11 11 11 6 0
+18 65.0 64 61 0 0 0 0 0 0 0 0 0 0 11 11 11 11 6 0
+19 65.0 60 59 0 0 0 0 0 0 0 0 0 0 12 12 12 12 6 0
+
+Data can be read directly into an array by an example R-script below:
+
+#!/usr/bin/Rscript
+tdata <- read.table("/var/tmp/tmon.log", header=T, comment.char="#")
+attach(tdata)
+jpeg("tmon.jpg")
+X11()
+g_range <- range(0, intel_powerclamp15, TargetTemp, acpitz0)
+plot( Samples, intel_powerclamp15, col="blue", ylim=g_range, axes=FALSE, ann=FALSE)
+par(new=TRUE)
+lines(TargetTemp, type="o", pch=22, lty=2, col="red")
+dev.off()
diff --git a/tools/thermal/tmon/tmon.c b/tools/thermal/tmon/tmon.c
new file mode 100644
index 000000000000..b30f531173e4
--- /dev/null
+++ b/tools/thermal/tmon/tmon.c
@@ -0,0 +1,352 @@
+/*
+ * tmon.c Thermal Monitor (TMON) main function and entry point
+ *
+ * Copyright (C) 2012 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 or later as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Author: Jacob Pan <jacob.jun.pan@linux.intel.com>
+ *
+ */
+
+#include <getopt.h>
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <ncurses.h>
+#include <ctype.h>
+#include <time.h>
+#include <signal.h>
+#include <limits.h>
+#include <sys/time.h>
+#include <pthread.h>
+#include <math.h>
+#include <stdarg.h>
+#include <syslog.h>
+
+#include "tmon.h"
+
+unsigned long ticktime = 1; /* seconds */
+unsigned long no_control = 1; /* monitoring only or use cooling device for
+			       * temperature control.
+			       */
+double time_elapsed = 0.0;
+unsigned long target_temp_user = 65; /* can be select by tui later */
+int dialogue_on;
+int tmon_exit;
+static short	daemon_mode;
+static int logging; /* for recording thermal data to a file */
+static int debug_on;
+FILE *tmon_log;
+/*cooling device used for the PID controller */
+char ctrl_cdev[CDEV_NAME_SIZE] = "None";
+int target_thermal_zone; /* user selected target zone instance */
+static void	start_daemon_mode(void);
+
+pthread_t event_tid;
+pthread_mutex_t input_lock;
+void usage()
+{
+	printf("Usage: tmon [OPTION...]\n");
+	printf("  -c, --control         cooling device in control\n");
+	printf("  -d, --daemon          run as daemon, no TUI\n");
+	printf("  -g, --debug           debug message in syslog\n");
+	printf("  -h, --help            show this help message\n");
+	printf("  -l, --log             log data to /var/tmp/tmon.log\n");
+	printf("  -t, --time-interval   sampling time interval, > 1 sec.\n");
+	printf("  -v, --version         show version\n");
+	printf("  -z, --zone            target thermal zone id\n");
+
+	exit(0);
+}
+
+void version()
+{
+	printf("TMON version %s\n", VERSION);
+	exit(EXIT_SUCCESS);
+}
+
+static void tmon_cleanup(void)
+{
+
+	syslog(LOG_INFO, "TMON exit cleanup\n");
+	fflush(stdout);
+	refresh();
+	if (tmon_log)
+		fclose(tmon_log);
+	if (event_tid) {
+		pthread_mutex_lock(&input_lock);
+		pthread_cancel(event_tid);
+		pthread_mutex_unlock(&input_lock);
+		pthread_mutex_destroy(&input_lock);
+	}
+	closelog();
+	/* relax control knobs, undo throttling */
+	set_ctrl_state(0);
+
+	keypad(stdscr, FALSE);
+	echo();
+	nocbreak();
+	close_windows();
+	endwin();
+	free_thermal_data();
+
+	exit(1);
+}
+
+
+static void tmon_sig_handler(int sig)
+{
+	syslog(LOG_INFO, "TMON caught signal %d\n", sig);
+	refresh();
+	switch (sig) {
+	case SIGTERM:
+		printf("sigterm, exit and clean up\n");
+		fflush(stdout);
+		break;
+	case SIGKILL:
+		printf("sigkill, exit and clean up\n");
+		fflush(stdout);
+		break;
+	case SIGINT:
+		printf("ctrl-c, exit and clean up\n");
+		fflush(stdout);
+		break;
+	default:
+		break;
+	}
+	tmon_exit = true;
+}
+
+
+static void start_syslog(void)
+{
+	if (debug_on)
+		setlogmask(LOG_UPTO(LOG_DEBUG));
+	else
+		setlogmask(LOG_UPTO(LOG_ERR));
+	openlog("tmon.log", LOG_CONS | LOG_PID | LOG_NDELAY, LOG_LOCAL0);
+	syslog(LOG_NOTICE, "TMON started by User %d", getuid());
+}
+
+static void prepare_logging(void)
+{
+	int i;
+
+	if (!logging)
+		return;
+	/* open local data log file */
+	tmon_log = fopen(TMON_LOG_FILE, "w+");
+	if (!tmon_log) {
+		syslog(LOG_ERR, "failed to open log file %s\n", TMON_LOG_FILE);
+		return;
+	}
+
+	fprintf(tmon_log, "#----------- THERMAL SYSTEM CONFIG -------------\n");
+	for (i = 0; i < ptdata.nr_tz_sensor; i++) {
+		char binding_str[33]; /* size of long + 1 */
+		int j;
+
+		memset(binding_str, 0, sizeof(binding_str));
+		for (j = 0; j < 32; j++)
+			binding_str[j] = (ptdata.tzi[i].cdev_binding & 1<<j) ?
+				'1' : '0';
+
+		fprintf(tmon_log, "#thermal zone %s%02d cdevs binding: %32s\n",
+			ptdata.tzi[i].type,
+			ptdata.tzi[i].instance,
+			binding_str);
+		for (j = 0; j <	ptdata.tzi[i].nr_trip_pts; j++) {
+			fprintf(tmon_log, "#\tTP%02d type:%s, temp:%lu\n", j,
+				trip_type_name[ptdata.tzi[i].tp[j].type],
+				ptdata.tzi[i].tp[j].temp);
+		}
+
+	}
+
+	for (i = 0; i <	ptdata.nr_cooling_dev; i++)
+		fprintf(tmon_log, "#cooling devices%02d: %s\n",
+			i, ptdata.cdi[i].type);
+
+	fprintf(tmon_log, "#---------- THERMAL DATA LOG STARTED -----------\n");
+	fprintf(tmon_log, "Samples TargetTemp ");
+	for (i = 0; i < ptdata.nr_tz_sensor; i++) {
+		fprintf(tmon_log, "%s%d    ", ptdata.tzi[i].type,
+			ptdata.tzi[i].instance);
+	}
+	for (i = 0; i <	ptdata.nr_cooling_dev; i++)
+		fprintf(tmon_log, "%s%d ", ptdata.cdi[i].type,
+			ptdata.cdi[i].instance);
+
+	fprintf(tmon_log, "\n");
+}
+
+static struct option opts[] = {
+	{ "control", 1, NULL, 'c' },
+	{ "daemon", 0, NULL, 'd' },
+	{ "time-interval", 1, NULL, 't' },
+	{ "log", 0, NULL, 'l' },
+	{ "help", 0, NULL, 'h' },
+	{ "version", 0, NULL, 'v' },
+	{ "debug", 0, NULL, 'g' },
+	{ 0, 0, NULL, 0 }
+};
+
+
+int main(int argc, char **argv)
+{
+	int err = 0;
+	int id2 = 0, c;
+	double yk = 0.0; /* controller output */
+	int target_tz_index;
+
+	if (geteuid() != 0) {
+		printf("TMON needs to be run as root\n");
+		exit(EXIT_FAILURE);
+	}
+
+	while ((c = getopt_long(argc, argv, "c:dlht:vgz:", opts, &id2)) != -1) {
+		switch (c) {
+		case 'c':
+			no_control = 0;
+			strncpy(ctrl_cdev, optarg, CDEV_NAME_SIZE);
+			break;
+		case 'd':
+			start_daemon_mode();
+			printf("Run TMON in daemon mode\n");
+			break;
+		case 't':
+			ticktime = strtod(optarg, NULL);
+			if (ticktime < 1)
+				ticktime = 1;
+			break;
+		case 'l':
+			printf("Logging data to /var/tmp/tmon.log\n");
+			logging = 1;
+			break;
+		case 'h':
+			usage();
+			break;
+		case 'v':
+			version();
+			break;
+		case 'g':
+			debug_on = 1;
+			break;
+		case 'z':
+			target_thermal_zone = strtod(optarg, NULL);
+			break;
+		default:
+			break;
+		}
+	}
+	if (pthread_mutex_init(&input_lock, NULL) != 0) {
+		fprintf(stderr, "\n mutex init failed, exit\n");
+		return 1;
+	}
+	start_syslog();
+	if (signal(SIGINT, tmon_sig_handler) == SIG_ERR)
+		syslog(LOG_DEBUG, "Cannot handle SIGINT\n");
+	if (signal(SIGTERM, tmon_sig_handler) == SIG_ERR)
+		syslog(LOG_DEBUG, "Cannot handle SIGINT\n");
+
+	if (probe_thermal_sysfs()) {
+		pthread_mutex_destroy(&input_lock);
+		closelog();
+		return -1;
+	}
+	initialize_curses();
+	setup_windows();
+	signal(SIGWINCH, resize_handler);
+	show_title_bar();
+	show_sensors_w();
+	show_cooling_device();
+	update_thermal_data();
+	show_data_w();
+	prepare_logging();
+	init_thermal_controller();
+
+	nodelay(stdscr, TRUE);
+	err = pthread_create(&event_tid, NULL, &handle_tui_events, NULL);
+	if (err != 0) {
+		printf("\ncan't create thread :[%s]", strerror(err));
+		tmon_cleanup();
+		exit(EXIT_FAILURE);
+	}
+
+	/* validate range of user selected target zone, default to the first
+	 * instance if out of range
+	 */
+	target_tz_index = zone_instance_to_index(target_thermal_zone);
+	if (target_tz_index < 0) {
+		target_thermal_zone = ptdata.tzi[0].instance;
+		syslog(LOG_ERR, "target zone is not found, default to %d\n",
+			target_thermal_zone);
+	}
+	while (1) {
+		sleep(ticktime);
+		show_title_bar();
+		show_sensors_w();
+		update_thermal_data();
+		if (!dialogue_on) {
+			show_data_w();
+			show_cooling_device();
+		}
+		cur_thermal_record++;
+		time_elapsed += ticktime;
+		controller_handler(trec[0].temp[target_tz_index] / 1000,
+				&yk);
+		trec[0].pid_out_pct = yk;
+		if (!dialogue_on)
+			show_control_w();
+		if (tmon_exit)
+			break;
+	}
+	tmon_cleanup();
+	return 0;
+}
+
+static void start_daemon_mode()
+{
+	daemon_mode = 1;
+	/* fork */
+	pid_t	sid, pid = fork();
+	if (pid < 0) {
+		exit(EXIT_FAILURE);
+	} else if (pid > 0)
+		/* kill parent */
+		exit(EXIT_SUCCESS);
+
+	/* disable TUI, it may not be necessary, but saves some resource */
+	disable_tui();
+
+	/* change the file mode mask */
+	umask(0);
+
+	/* new SID for the daemon process */
+	sid = setsid();
+	if (sid < 0)
+		exit(EXIT_FAILURE);
+
+	/* change working directory */
+	if ((chdir("/")) < 0)
+		exit(EXIT_FAILURE);
+
+
+	sleep(10);
+
+	close(STDIN_FILENO);
+	close(STDOUT_FILENO);
+	close(STDERR_FILENO);
+
+}
diff --git a/tools/thermal/tmon/tmon.h b/tools/thermal/tmon/tmon.h
new file mode 100644
index 000000000000..9e3c49c547ac
--- /dev/null
+++ b/tools/thermal/tmon/tmon.h
@@ -0,0 +1,204 @@
+/*
+ * tmon.h contains data structures and constants used by TMON
+ *
+ * Copyright (C) 2012 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 or later as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Author Name Jacob Pan <jacob.jun.pan@linux.intel.com>
+ *
+ */
+
+#ifndef TMON_H
+#define TMON_H
+
+#define MAX_DISP_TEMP 125
+#define MAX_CTRL_TEMP 105
+#define MIN_CTRL_TEMP 40
+#define MAX_NR_TZONE 16
+#define MAX_NR_CDEV 32
+#define MAX_NR_TRIP 16
+#define MAX_NR_CDEV_TRIP 12 /* number of cooling devices that can bind
+			     * to a thermal zone trip.
+			     */
+#define MAX_TEMP_KC 140000
+/* starting char position to draw sensor data, such as tz names
+ * trip point list, etc.
+ */
+#define DATA_LEFT_ALIGN 10
+#define NR_LINES_TZDATA 1
+#define TMON_LOG_FILE "/var/tmp/tmon.log"
+
+extern unsigned long ticktime;
+extern double time_elapsed;
+extern unsigned long target_temp_user;
+extern int dialogue_on;
+extern char ctrl_cdev[];
+extern pthread_mutex_t input_lock;
+extern int tmon_exit;
+extern int target_thermal_zone;
+/* use fixed size record to simplify data processing and transfer
+ * TBD: more info to be added, e.g. programmable trip point data.
+*/
+struct thermal_data_record {
+	struct timeval tv;
+	unsigned long temp[MAX_NR_TZONE];
+	double pid_out_pct;
+};
+
+struct cdev_info {
+	char type[64];
+	int instance;
+	unsigned long max_state;
+	unsigned long cur_state;
+	unsigned long flag;
+};
+
+enum trip_type {
+	THERMAL_TRIP_CRITICAL,
+	THERMAL_TRIP_HOT,
+	THERMAL_TRIP_PASSIVE,
+	THERMAL_TRIP_ACTIVE,
+	NR_THERMAL_TRIP_TYPE,
+};
+
+struct trip_point {
+	enum trip_type type;
+	unsigned long temp;
+	unsigned long hysteresis;
+	int attribute; /* programmability etc. */
+};
+
+/* thermal zone configuration information, binding with cooling devices could
+ * change at runtime.
+ */
+struct tz_info {
+	char type[256]; /* e.g. acpitz */
+	int instance;
+	int passive; /* active zone has passive node to force passive mode */
+	int nr_cdev; /* number of cooling device binded */
+	int nr_trip_pts;
+	struct trip_point tp[MAX_NR_TRIP];
+	unsigned long cdev_binding; /* bitmap for attached cdevs */
+	/* cdev bind trip points, allow one cdev bind to multiple trips */
+	unsigned long trip_binding[MAX_NR_CDEV];
+};
+
+struct tmon_platform_data {
+	int nr_tz_sensor;
+	int nr_cooling_dev;
+	/* keep track of instance ids since there might be gaps */
+	int max_tz_instance;
+	int max_cdev_instance;
+	struct tz_info *tzi;
+	struct cdev_info *cdi;
+};
+
+struct control_ops {
+	void (*set_ratio)(unsigned long ratio);
+	unsigned long (*get_ratio)(unsigned long ratio);
+
+};
+
+enum cdev_types {
+	CDEV_TYPE_PROC,
+	CDEV_TYPE_FAN,
+	CDEV_TYPE_MEM,
+	CDEV_TYPE_NR,
+};
+
+/* REVISIT: the idea is to group sensors if possible, e.g. on intel mid
+ * we have "skin0", "skin1", "sys", "msicdie"
+ * on DPTF enabled systems, we might have PCH, TSKN, TAMB, etc.
+ */
+enum tzone_types {
+	TZONE_TYPE_ACPI,
+	TZONE_TYPE_PCH,
+	TZONE_TYPE_NR,
+};
+
+/* limit the output of PID controller adjustment */
+#define LIMIT_HIGH (95)
+#define LIMIT_LOW  (2)
+
+struct pid_params {
+	double kp;  /* Controller gain from Dialog Box */
+	double ki;  /* Time-constant for I action from Dialog Box */
+	double kd;  /* Time-constant for D action from Dialog Box */
+	double ts;
+	double k_lpf;
+
+	double t_target;
+	double y_k;
+};
+
+extern int init_thermal_controller(void);
+extern void controller_handler(const double xk, double *yk);
+
+extern struct tmon_platform_data ptdata;
+extern struct pid_params p_param;
+
+extern FILE *tmon_log;
+extern int cur_thermal_record; /* index to the trec array */
+extern struct thermal_data_record trec[];
+extern const char *trip_type_name[];
+extern unsigned long no_control;
+
+extern void initialize_curses(void);
+extern void show_controller_stats(char *line);
+extern void show_title_bar(void);
+extern void setup_windows(void);
+extern void disable_tui(void);
+extern void show_sensors_w(void);
+extern void show_data_w(void);
+extern void write_status_bar(int x, char *line);
+extern void show_control_w();
+
+extern void show_cooling_device(void);
+extern void show_dialogue(void);
+extern int update_thermal_data(void);
+
+extern int probe_thermal_sysfs(void);
+extern void free_thermal_data(void);
+extern	void resize_handler(int sig);
+extern void set_ctrl_state(unsigned long state);
+extern void get_ctrl_state(unsigned long *state);
+extern void *handle_tui_events(void *arg);
+extern int sysfs_set_ulong(char *path, char *filename, unsigned long val);
+extern int zone_instance_to_index(int zone_inst);
+extern void close_windows(void);
+
+#define PT_COLOR_DEFAULT    1
+#define PT_COLOR_HEADER_BAR 2
+#define PT_COLOR_ERROR      3
+#define PT_COLOR_RED        4
+#define PT_COLOR_YELLOW     5
+#define PT_COLOR_GREEN      6
+#define PT_COLOR_BRIGHT     7
+#define PT_COLOR_BLUE	    8
+
+/* each thermal zone uses 12 chars, 8 for name, 2 for instance, 2 space
+ * also used to list trip points in forms of AAAC, which represents
+ * A: Active
+ * C: Critical
+ */
+#define TZONE_RECORD_SIZE 12
+#define TZ_LEFT_ALIGN 32
+#define CDEV_NAME_SIZE 20
+#define CDEV_FLAG_IN_CONTROL (1 << 0)
+
+/* dialogue box starts */
+#define DIAG_X 48
+#define DIAG_Y 8
+#define THERMAL_SYSFS "/sys/class/thermal"
+#define CDEV "cooling_device"
+#define TZONE "thermal_zone"
+#define TDATA_LEFT 16
+#endif /* TMON_H */
diff --git a/tools/thermal/tmon/tui.c b/tools/thermal/tmon/tui.c
new file mode 100644
index 000000000000..89f8ef0e15c8
--- /dev/null
+++ b/tools/thermal/tmon/tui.c
@@ -0,0 +1,638 @@
+/*
+ * tui.c ncurses text user interface for TMON program
+ *
+ * Copyright (C) 2013 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version
+ * 2 or later as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * Author: Jacob Pan <jacob.jun.pan@linux.intel.com>
+ *
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <ncurses.h>
+#include <time.h>
+#include <syslog.h>
+#include <panel.h>
+#include <pthread.h>
+#include <signal.h>
+
+#include "tmon.h"
+
+static PANEL *data_panel;
+static PANEL *dialogue_panel;
+static PANEL *top;
+
+static WINDOW *title_bar_window;
+static WINDOW *tz_sensor_window;
+static WINDOW *cooling_device_window;
+static WINDOW *control_window;
+static WINDOW *status_bar_window;
+static WINDOW *thermal_data_window;
+static WINDOW *dialogue_window;
+
+char status_bar_slots[10][40];
+static void draw_hbar(WINDOW *win, int y, int start, int len,
+		unsigned long pattern, bool end);
+
+static int maxx, maxy;
+static int maxwidth = 200;
+
+#define TITLE_BAR_HIGHT 1
+#define SENSOR_WIN_HIGHT 4 /* one row for tz name, one for trip points */
+
+
+/* daemon mode flag (set by startup parameter -d) */
+static int  tui_disabled;
+
+static void close_panel(PANEL *p)
+{
+	if (p) {
+		del_panel(p);
+		p = NULL;
+	}
+}
+
+static void close_window(WINDOW *win)
+{
+	if (win) {
+		delwin(win);
+		win = NULL;
+	}
+}
+
+void close_windows(void)
+{
+	if (tui_disabled)
+		return;
+	/* must delete panels before their attached windows */
+	if (dialogue_window)
+		close_panel(dialogue_panel);
+	if (cooling_device_window)
+		close_panel(data_panel);
+
+	close_window(title_bar_window);
+	close_window(tz_sensor_window);
+	close_window(status_bar_window);
+	close_window(cooling_device_window);
+	close_window(control_window);
+	close_window(thermal_data_window);
+	close_window(dialogue_window);
+
+}
+
+void write_status_bar(int x, char *line)
+{
+	mvwprintw(status_bar_window, 0, x, "%s", line);
+	wrefresh(status_bar_window);
+}
+
+void setup_windows(void)
+{
+	int y_begin = 1;
+
+	if (tui_disabled)
+		return;
+
+	getmaxyx(stdscr, maxy, maxx);
+	resizeterm(maxy, maxx);
+
+	title_bar_window = subwin(stdscr, TITLE_BAR_HIGHT, maxx, 0, 0);
+	y_begin += TITLE_BAR_HIGHT;
+
+	tz_sensor_window = subwin(stdscr, SENSOR_WIN_HIGHT, maxx, y_begin, 0);
+	y_begin += SENSOR_WIN_HIGHT;
+
+	cooling_device_window = subwin(stdscr, ptdata.nr_cooling_dev + 3, maxx,
+				y_begin, 0);
+	y_begin += ptdata.nr_cooling_dev + 3; /* 2 lines for border */
+	/* two lines to show borders, one line per tz show trip point position
+	 * and value.
+	 * dialogue window is a pop-up, when needed it lays on top of cdev win
+	 */
+
+	dialogue_window = subwin(stdscr, ptdata.nr_cooling_dev+5, maxx-50,
+				DIAG_Y, DIAG_X);
+
+	thermal_data_window = subwin(stdscr, ptdata.nr_tz_sensor *
+				NR_LINES_TZDATA + 3, maxx, y_begin, 0);
+	y_begin += ptdata.nr_tz_sensor * NR_LINES_TZDATA + 3;
+	control_window = subwin(stdscr, 4, maxx, y_begin, 0);
+
+	scrollok(cooling_device_window, TRUE);
+	maxwidth = maxx - 18;
+	status_bar_window = subwin(stdscr, 1, maxx, maxy-1, 0);
+
+	strcpy(status_bar_slots[0], " Ctrl-c - Quit ");
+	strcpy(status_bar_slots[1], " TAB - Tuning ");
+	wmove(status_bar_window, 1, 30);
+
+	/* prepare panels for dialogue, if panel already created then we must
+	 * be doing resizing, so just replace windows with new ones, old ones
+	 * should have been deleted by close_window
+	 */
+	data_panel = new_panel(cooling_device_window);
+	if (!data_panel)
+		syslog(LOG_DEBUG, "No data panel\n");
+	else {
+		if (dialogue_window) {
+			dialogue_panel = new_panel(dialogue_window);
+			if (!dialogue_panel)
+				syslog(LOG_DEBUG, "No dialogue panel\n");
+			else {
+				/* Set up the user pointer to the next panel*/
+				set_panel_userptr(data_panel, dialogue_panel);
+				set_panel_userptr(dialogue_panel, data_panel);
+				top = data_panel;
+			}
+		} else
+			syslog(LOG_INFO, "no dialogue win, term too small\n");
+	}
+	doupdate();
+	werase(stdscr);
+	refresh();
+}
+
+void resize_handler(int sig)
+{
+	/* start over when term gets resized, but first we clean up */
+	close_windows();
+	endwin();
+	refresh();
+	clear();
+	getmaxyx(stdscr, maxy, maxx);  /* get the new screen size */
+	setup_windows();
+	/* rate limit */
+	sleep(1);
+	syslog(LOG_DEBUG, "SIG %d, term resized to %d x %d\n",
+		sig, maxy, maxx);
+	signal(SIGWINCH, resize_handler);
+}
+
+const char cdev_title[] = " COOLING DEVICES ";
+void show_cooling_device(void)
+{
+	int i, j, x, y = 0;
+
+	if (tui_disabled || !cooling_device_window)
+		return;
+
+	werase(cooling_device_window);
+	wattron(cooling_device_window, A_BOLD);
+	mvwprintw(cooling_device_window,  1, 1,
+		"ID  Cooling Dev   Cur    Max   Thermal Zone Binding");
+	wattroff(cooling_device_window, A_BOLD);
+	for (j = 0; j <	ptdata.nr_cooling_dev; j++) {
+		/* draw cooling device list on the left in the order of
+		 * cooling device instances. skip unused idr.
+		 */
+		mvwprintw(cooling_device_window, j + 2, 1,
+			"%02d %12.12s%6d %6d",
+			ptdata.cdi[j].instance,
+			ptdata.cdi[j].type,
+			ptdata.cdi[j].cur_state,
+			ptdata.cdi[j].max_state);
+	}
+
+	/* show cdev binding, y is the global cooling device instance */
+	for (i = 0; i < ptdata.nr_tz_sensor; i++) {
+		int tz_inst = ptdata.tzi[i].instance;
+		for (j = 0; j < ptdata.nr_cooling_dev; j++) {
+			int cdev_inst;
+			y = j;
+			x = tz_inst * TZONE_RECORD_SIZE + TZ_LEFT_ALIGN;
+
+			draw_hbar(cooling_device_window, y+2, x,
+				TZONE_RECORD_SIZE-1, ACS_VLINE, false);
+
+			/* draw a column of spaces to separate thermal zones */
+			mvwprintw(cooling_device_window, y+2, x-1, " ");
+			if (ptdata.tzi[i].cdev_binding) {
+				cdev_inst = ptdata.cdi[j].instance;
+				unsigned long trip_binding =
+					ptdata.tzi[i].trip_binding[cdev_inst];
+				int k = 0; /* per zone trip point id that
+					    * binded to this cdev, one to
+					    * many possible based on the
+					    * binding bitmask.
+					    */
+				syslog(LOG_DEBUG,
+					"bind tz%d cdev%d tp%lx %d cdev%lx\n",
+					i, j, trip_binding, y,
+					ptdata.tzi[i].cdev_binding);
+				/* draw each trip binding for the cdev */
+				while (trip_binding >>= 1) {
+					k++;
+					if (!(trip_binding & 1))
+						continue;
+					/* draw '*' to show binding */
+					mvwprintw(cooling_device_window,
+						y + 2,
+						x + ptdata.tzi[i].nr_trip_pts -
+						k - 1, "*");
+				}
+			}
+		}
+	}
+	/* draw border after data so that border will not be messed up
+	 * even there is not enough space for all the data to be shown
+	 */
+	wborder(cooling_device_window, 0, 0, 0, 0, 0, 0, 0, 0);
+	wattron(cooling_device_window, A_BOLD);
+	mvwprintw(cooling_device_window, 0, maxx/2 - sizeof(cdev_title),
+		cdev_title);
+	wattroff(cooling_device_window, A_BOLD);
+
+	wrefresh(cooling_device_window);
+}
+
+const char DIAG_TITLE[] = "[ TUNABLES ]";
+#define DIAG_DEV_ROWS  5
+void show_dialogue(void)
+{
+	int j, x = 0, y = 0;
+	WINDOW *w = dialogue_window;
+
+	if (tui_disabled || !w)
+		return;
+
+	werase(w);
+	box(w, 0, 0);
+	mvwprintw(w, 0, maxx/4, DIAG_TITLE);
+	/* list all the available tunables */
+	for (j = 0; j <= ptdata.nr_cooling_dev; j++) {
+		y = j % DIAG_DEV_ROWS;
+		if (y == 0 && j != 0)
+			x += 20;
+		if (j == ptdata.nr_cooling_dev)
+			/* save last choice for target temp */
+			mvwprintw(w, y+1, x+1, "%C-%.12s", 'A'+j, "Set Temp");
+		else
+			mvwprintw(w, y+1, x+1, "%C-%.10s-%2d", 'A'+j,
+				ptdata.cdi[j].type, ptdata.cdi[j].instance);
+	}
+	wattron(w, A_BOLD);
+	mvwprintw(w, DIAG_DEV_ROWS+1, 1, "Enter Choice [A-Z]?");
+	wattroff(w, A_BOLD);
+	/* y size of dialogue win is nr cdev + 5, so print legend
+	 * at the bottom line
+	 */
+	mvwprintw(w, ptdata.nr_cooling_dev+3, 1,
+		"Legend: A=Active, P=Passive, C=Critical");
+
+	wrefresh(dialogue_window);
+}
+
+void write_dialogue_win(char *buf, int y, int x)
+{
+	WINDOW *w = dialogue_window;
+
+	mvwprintw(w, y, x, "%s", buf);
+}
+
+const char control_title[] = " CONTROLS ";
+void show_control_w(void)
+{
+	unsigned long state;
+
+	get_ctrl_state(&state);
+
+	if (tui_disabled || !control_window)
+		return;
+
+	werase(control_window);
+	mvwprintw(control_window, 1, 1,
+		"PID gain: kp=%2.2f ki=%2.2f kd=%2.2f Output %2.2f",
+		p_param.kp, p_param.ki, p_param.kd, p_param.y_k);
+
+	mvwprintw(control_window, 2, 1,
+		"Target Temp: %2.1fC, Zone: %d, Control Device: %.12s",
+		p_param.t_target, target_thermal_zone, ctrl_cdev);
+
+	/* draw border last such that everything is within boundary */
+	wborder(control_window, 0, 0, 0, 0, 0, 0, 0, 0);
+	wattron(control_window, A_BOLD);
+	mvwprintw(control_window, 0, maxx/2 - sizeof(control_title),
+		control_title);
+	wattroff(control_window, A_BOLD);
+
+	wrefresh(control_window);
+}
+
+void initialize_curses(void)
+{
+	if (tui_disabled)
+		return;
+
+	initscr();
+	start_color();
+	keypad(stdscr, TRUE);	/* enable keyboard mapping */
+	nonl();			/* tell curses not to do NL->CR/NL on output */
+	cbreak();		/* take input chars one at a time */
+	noecho();		/* dont echo input */
+	curs_set(0);		/* turn off cursor */
+	use_default_colors();
+
+	init_pair(PT_COLOR_DEFAULT, COLOR_WHITE, COLOR_BLACK);
+	init_pair(PT_COLOR_HEADER_BAR, COLOR_BLACK, COLOR_WHITE);
+	init_pair(PT_COLOR_ERROR, COLOR_BLACK, COLOR_RED);
+	init_pair(PT_COLOR_RED, COLOR_WHITE, COLOR_RED);
+	init_pair(PT_COLOR_YELLOW, COLOR_WHITE, COLOR_YELLOW);
+	init_pair(PT_COLOR_GREEN, COLOR_WHITE, COLOR_GREEN);
+	init_pair(PT_COLOR_BLUE, COLOR_WHITE, COLOR_BLUE);
+	init_pair(PT_COLOR_BRIGHT, COLOR_WHITE, COLOR_BLACK);
+
+}
+
+void show_title_bar(void)
+{
+	int i;
+	int x = 0;
+
+	if (tui_disabled || !title_bar_window)
+		return;
+
+	wattrset(title_bar_window, COLOR_PAIR(PT_COLOR_HEADER_BAR));
+	wbkgd(title_bar_window, COLOR_PAIR(PT_COLOR_HEADER_BAR));
+	werase(title_bar_window);
+
+	mvwprintw(title_bar_window, 0, 0,
+		"     TMON v%s", VERSION);
+
+	wrefresh(title_bar_window);
+
+	werase(status_bar_window);
+
+	for (i = 0; i < 10; i++) {
+		if (strlen(status_bar_slots[i]) == 0)
+			continue;
+		wattron(status_bar_window, A_REVERSE);
+		mvwprintw(status_bar_window, 0, x, "%s", status_bar_slots[i]);
+		wattroff(status_bar_window, A_REVERSE);
+		x += strlen(status_bar_slots[i]) + 1;
+	}
+	wrefresh(status_bar_window);
+}
+
+static void handle_input_val(int ch)
+{
+	char buf[32];
+	int val;
+	char path[256];
+	WINDOW *w = dialogue_window;
+
+	echo();
+	keypad(w, TRUE);
+	wgetnstr(w, buf, 31);
+	val = atoi(buf);
+
+	if (ch == ptdata.nr_cooling_dev) {
+		snprintf(buf, 31, "Invalid Temp %d! %d-%d", val,
+			MIN_CTRL_TEMP, MAX_CTRL_TEMP);
+		if (val < MIN_CTRL_TEMP || val > MAX_CTRL_TEMP)
+			write_status_bar(40, buf);
+		else {
+			p_param.t_target = val;
+			snprintf(buf, 31, "Set New Target Temp %d", val);
+			write_status_bar(40, buf);
+		}
+	} else {
+		snprintf(path, 256, "%s/%s%d", THERMAL_SYSFS,
+			CDEV, ptdata.cdi[ch].instance);
+		sysfs_set_ulong(path, "cur_state", val);
+	}
+	noecho();
+	dialogue_on = 0;
+	show_data_w();
+	show_control_w();
+
+	top = (PANEL *)panel_userptr(top);
+	top_panel(top);
+}
+
+static void handle_input_choice(int ch)
+{
+	char buf[48];
+	int base = 0;
+	int cdev_id = 0;
+
+	if ((ch >= 'A' && ch <= 'A' + ptdata.nr_cooling_dev) ||
+		(ch >= 'a' && ch <= 'a' + ptdata.nr_cooling_dev)) {
+		base = (ch < 'a') ? 'A' : 'a';
+		cdev_id = ch - base;
+		if (ptdata.nr_cooling_dev == cdev_id)
+			snprintf(buf, sizeof(buf), "New Target Temp:");
+		else
+			snprintf(buf, sizeof(buf), "New Value for %.10s-%2d: ",
+				ptdata.cdi[cdev_id].type,
+				ptdata.cdi[cdev_id].instance);
+		write_dialogue_win(buf, DIAG_DEV_ROWS+2, 2);
+		handle_input_val(cdev_id);
+	} else {
+		snprintf(buf, sizeof(buf), "Invalid selection %d", ch);
+		write_dialogue_win(buf, 8, 2);
+	}
+}
+
+void *handle_tui_events(void *arg)
+{
+	int ch;
+
+	keypad(cooling_device_window, TRUE);
+	while ((ch = wgetch(cooling_device_window)) != EOF) {
+		if (tmon_exit)
+			break;
+		/* when term size is too small, no dialogue panels are set.
+		 * we need to filter out such cases.
+		 */
+		if (!data_panel || !dialogue_panel ||
+			!cooling_device_window ||
+			!dialogue_window) {
+
+			continue;
+		}
+		pthread_mutex_lock(&input_lock);
+		if (dialogue_on) {
+			handle_input_choice(ch);
+			/* top panel filter */
+			if (ch == 'q' || ch == 'Q')
+				ch = 0;
+		}
+		switch (ch) {
+		case KEY_LEFT:
+			box(cooling_device_window, 10, 0);
+			break;
+		case 9: /* TAB */
+			top = (PANEL *)panel_userptr(top);
+			top_panel(top);
+			if (top == dialogue_panel) {
+				dialogue_on = 1;
+				show_dialogue();
+			} else {
+				dialogue_on = 0;
+				/* force refresh */
+				show_data_w();
+				show_control_w();
+			}
+			break;
+		case 'q':
+		case 'Q':
+			tmon_exit = 1;
+			break;
+		}
+		update_panels();
+		doupdate();
+		pthread_mutex_unlock(&input_lock);
+	}
+
+	if (arg)
+		*(int *)arg = 0; /* make gcc happy */
+
+	return NULL;
+}
+
+/* draw a horizontal bar in given pattern */
+static void draw_hbar(WINDOW *win, int y, int start, int len, unsigned long ptn,
+		bool end)
+{
+	mvwaddch(win, y, start, ptn);
+	whline(win, ptn, len);
+	if (end)
+		mvwaddch(win, y, MAX_DISP_TEMP+TDATA_LEFT, ']');
+}
+
+static char trip_type_to_char(int type)
+{
+	switch (type) {
+	case THERMAL_TRIP_CRITICAL: return 'C';
+	case THERMAL_TRIP_HOT: return 'H';
+	case THERMAL_TRIP_PASSIVE: return 'P';
+	case THERMAL_TRIP_ACTIVE: return 'A';
+	default:
+		return '?';
+	}
+}
+
+/* fill a string with trip point type and value in one line
+ * e.g.      P(56)    C(106)
+ * maintain the distance one degree per char
+ */
+static void draw_tp_line(int tz, int y)
+{
+	int j;
+	int x;
+
+	for (j = 0; j < ptdata.tzi[tz].nr_trip_pts; j++) {
+		x = ptdata.tzi[tz].tp[j].temp / 1000;
+		mvwprintw(thermal_data_window, y + 0, x + TDATA_LEFT,
+			"%c%d", trip_type_to_char(ptdata.tzi[tz].tp[j].type),
+			x);
+		syslog(LOG_INFO, "%s:tz %d tp %d temp = %lu\n", __func__,
+			tz, j, ptdata.tzi[tz].tp[j].temp);
+	}
+}
+
+const char data_win_title[] = " THERMAL DATA ";
+void show_data_w(void)
+{
+	int i;
+
+
+	if (tui_disabled || !thermal_data_window)
+		return;
+
+	werase(thermal_data_window);
+	wattron(thermal_data_window, A_BOLD);
+	mvwprintw(thermal_data_window, 0, maxx/2 - sizeof(data_win_title),
+		data_win_title);
+	wattroff(thermal_data_window, A_BOLD);
+	/* draw a line as ruler */
+	for (i = 10; i < MAX_DISP_TEMP; i += 10)
+		mvwprintw(thermal_data_window, 1, i+TDATA_LEFT, "%2d", i);
+
+	for (i = 0; i < ptdata.nr_tz_sensor; i++) {
+		int temp = trec[cur_thermal_record].temp[i] / 1000;
+		int y = 0;
+
+		y = i * NR_LINES_TZDATA + 2;
+		/* y at tz temp data line */
+		mvwprintw(thermal_data_window, y, 1, "%6.6s%2d:[%3d][",
+			ptdata.tzi[i].type,
+			ptdata.tzi[i].instance, temp);
+		draw_hbar(thermal_data_window, y, TDATA_LEFT, temp, ACS_RARROW,
+			true);
+		draw_tp_line(i, y);
+	}
+	wborder(thermal_data_window, 0, 0, 0, 0, 0, 0, 0, 0);
+	wrefresh(thermal_data_window);
+}
+
+const char tz_title[] = "THERMAL ZONES(SENSORS)";
+
+void show_sensors_w(void)
+{
+	int i, j;
+	char buffer[512];
+
+	if (tui_disabled || !tz_sensor_window)
+		return;
+
+	werase(tz_sensor_window);
+
+	memset(buffer, 0, sizeof(buffer));
+	wattron(tz_sensor_window, A_BOLD);
+	mvwprintw(tz_sensor_window, 1, 1, "Thermal Zones:");
+	wattroff(tz_sensor_window, A_BOLD);
+
+	mvwprintw(tz_sensor_window, 1, TZ_LEFT_ALIGN, "%s", buffer);
+	/* fill trip points for each tzone */
+	wattron(tz_sensor_window, A_BOLD);
+	mvwprintw(tz_sensor_window, 2, 1, "Trip Points:");
+	wattroff(tz_sensor_window, A_BOLD);
+
+	/* draw trip point from low to high for each tz */
+	for (i = 0; i < ptdata.nr_tz_sensor; i++) {
+		int inst = ptdata.tzi[i].instance;
+
+		mvwprintw(tz_sensor_window, 1,
+			TZ_LEFT_ALIGN+TZONE_RECORD_SIZE * inst, "%.9s%02d",
+			ptdata.tzi[i].type, ptdata.tzi[i].instance);
+		for (j = ptdata.tzi[i].nr_trip_pts - 1; j >= 0; j--) {
+			/* loop through all trip points */
+			char type;
+			int tp_pos;
+			/* reverse the order here since trips are sorted
+			 * in ascending order in terms of temperature.
+			 */
+			tp_pos = ptdata.tzi[i].nr_trip_pts - j - 1;
+
+			type = trip_type_to_char(ptdata.tzi[i].tp[j].type);
+			mvwaddch(tz_sensor_window, 2,
+				inst * TZONE_RECORD_SIZE + TZ_LEFT_ALIGN +
+				tp_pos,	type);
+			syslog(LOG_DEBUG, "draw tz %d tp %d ch:%c\n",
+				inst, j, type);
+		}
+	}
+	wborder(tz_sensor_window, 0, 0, 0, 0, 0, 0, 0, 0);
+	wattron(tz_sensor_window, A_BOLD);
+	mvwprintw(tz_sensor_window, 0, maxx/2 - sizeof(tz_title), tz_title);
+	wattroff(tz_sensor_window, A_BOLD);
+	wrefresh(tz_sensor_window);
+}
+
+void disable_tui(void)
+{
+	tui_disabled = 1;
+}
-- 
cgit 


From fd432b9f8c7c88428a4635b9f5a9c6e174df6e36 Mon Sep 17 00:00:00 2001
From: Aaron Lu <aaron.lu@intel.com>
Date: Wed, 6 Nov 2013 08:41:31 +0800
Subject: PM / hibernate: Avoid overflow in hibernate_preallocate_memory()

When system has a lot of highmem (e.g. 16GiB using a 32 bits kernel),
the code to calculate how much memory we need to preallocate in
normal zone may cause overflow. As Leon has analysed:

 It looks that during computing 'alloc' variable there is overflow:
 alloc = (3943404 - 1970542) - 1978280 = -5418 (signed)
 And this function goes to err_out.

Fix this by avoiding that overflow.

References: https://bugzilla.kernel.org/show_bug.cgi?id=60817
Reported-and-tested-by: Leon Drugi <eyak@wp.pl>
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 kernel/power/snapshot.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 98c3b34a4cff..10c22cae83a0 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -1402,7 +1402,11 @@ int hibernate_preallocate_memory(void)
 	 * highmem and non-highmem zones separately.
 	 */
 	pages_highmem = preallocate_image_highmem(highmem / 2);
-	alloc = (count - max_size) - pages_highmem;
+	alloc = count - max_size;
+	if (alloc > pages_highmem)
+		alloc -= pages_highmem;
+	else
+		alloc = 0;
 	pages = preallocate_image_memory(alloc, avail_normal);
 	if (pages < alloc) {
 		/* We have exhausted non-highmem pages, try highmem. */
-- 
cgit 


From fbbcdc0744dace5fcc8147d11c5fb0791126848a Mon Sep 17 00:00:00 2001
From: Adrian Huang <adrianhuang0701@gmail.com>
Date: Thu, 31 Oct 2013 23:24:05 +0800
Subject: intel_pstate: skip the driver if ACPI has power mgmt option

Do not load the Intel pstate driver if the platform firmware
(ACPI BIOS) supports the power management alternatives.
The ACPI BIOS indicates that the OS control mode can be used
if the _PSS (Performance Supported States) is defined in ACPI
table. For the OS control mode, the Intel pstate driver will be
loaded.

HP BIOS has several power management modes (firmware, OS-control and
so on). For the OS control mode in HP BIOS, the Intel p-state driver
will be loaded. When the customer chooses the firmware power
management in HP BIOS, the Intel p-state driver will be ignored.

I put hw_vendor_info vendor_info in case other vendors (Dell, Lenovo...)
have their firmware power management. Vendors should make sure their
firmware power management works properly, and they can go for adding
their vendor info to the variable.

I have verified the patch on HP ProLiant servers.  The patch worked
correctly.

Signed-off-by: Adrian Huang <adrianhuang0701@gmail.com>
[rjw: Fixed up !CONFIG_ACPI build]
[Linda Knippers: As Adrian has recently left HP, I retested the
updated patch on an HP ProLiant server and verified that it is
behaving correctly.  When the BIOS is configured for OS control for
power management, the intel_pstate driver loads as expected.  When
the BIOS is configured to provide the power management, the
intel_pstate driver does not load and we get the pcc_cpufreq driver
instead.]
Signed-off-by: Linda Knippers <linda.knippers@hp.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/intel_pstate.c | 74 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)

diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 81e0062a6d2a..3b5c5359a44b 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -25,6 +25,7 @@
 #include <linux/types.h>
 #include <linux/fs.h>
 #include <linux/debugfs.h>
+#include <linux/acpi.h>
 #include <trace/events/power.h>
 
 #include <asm/div64.h>
@@ -779,6 +780,72 @@ static void copy_cpu_funcs(struct pstate_funcs *funcs)
 	pstate_funcs.set       = funcs->set;
 }
 
+#if IS_ENABLED(CONFIG_ACPI)
+#include <acpi/processor.h>
+
+static bool intel_pstate_no_acpi_pss(void)
+{
+	int i;
+
+	for_each_possible_cpu(i) {
+		acpi_status status;
+		union acpi_object *pss;
+		struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+		struct acpi_processor *pr = per_cpu(processors, i);
+
+		if (!pr)
+			continue;
+
+		status = acpi_evaluate_object(pr->handle, "_PSS", NULL, &buffer);
+		if (ACPI_FAILURE(status))
+			continue;
+
+		pss = buffer.pointer;
+		if (pss && pss->type == ACPI_TYPE_PACKAGE) {
+			kfree(pss);
+			return false;
+		}
+
+		kfree(pss);
+	}
+
+	return true;
+}
+
+struct hw_vendor_info {
+	u16  valid;
+	char oem_id[ACPI_OEM_ID_SIZE];
+	char oem_table_id[ACPI_OEM_TABLE_ID_SIZE];
+};
+
+/* Hardware vendor-specific info that has its own power management modes */
+static struct hw_vendor_info vendor_info[] = {
+	{1, "HP    ", "ProLiant"},
+	{0, "", ""},
+};
+
+static bool intel_pstate_platform_pwr_mgmt_exists(void)
+{
+	struct acpi_table_header hdr;
+	struct hw_vendor_info *v_info;
+
+	if (acpi_disabled
+	    || ACPI_FAILURE(acpi_get_table_header(ACPI_SIG_FADT, 0, &hdr)))
+		return false;
+
+	for (v_info = vendor_info; v_info->valid; v_info++) {
+		if (!strncmp(hdr.oem_id, v_info->oem_id, ACPI_OEM_ID_SIZE)
+		    && !strncmp(hdr.oem_table_id, v_info->oem_table_id, ACPI_OEM_TABLE_ID_SIZE)
+		    && intel_pstate_no_acpi_pss())
+			return true;
+	}
+
+	return false;
+}
+#else /* CONFIG_ACPI not enabled */
+static inline bool intel_pstate_platform_pwr_mgmt_exists(void) { return false; }
+#endif /* CONFIG_ACPI */
+
 static int __init intel_pstate_init(void)
 {
 	int cpu, rc = 0;
@@ -792,6 +859,13 @@ static int __init intel_pstate_init(void)
 	if (!id)
 		return -ENODEV;
 
+	/*
+	 * The Intel pstate driver will be ignored if the platform
+	 * firmware has its own power management modes.
+	 */
+	if (intel_pstate_platform_pwr_mgmt_exists())
+		return -ENODEV;
+
 	cpu_info = (struct cpu_defaults *)id->driver_data;
 
 	copy_pid_params(&cpu_info->pid_policy);
-- 
cgit 


From 9efa5e50598c5568b0678bb411b239a0b6e9a328 Mon Sep 17 00:00:00 2001
From: Aaron Lu <aaron.lu@intel.com>
Date: Wed, 6 Nov 2013 09:03:15 +0800
Subject: ACPI / video: Fix initial level validity test

When testing if the firmware's initial value is valid, we should use
the corrected level value instead of the raw value returned from
firmware.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/video.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 38c3a28d6392..bf521b36c2f9 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -856,7 +856,7 @@ acpi_video_init_brightness(struct acpi_video_device *device)
 		 * or an index). Set the backlight to max_level in this case.
 		 */
 		for (i = 2; i < br->count; i++)
-			if (level_old == br->levels[i])
+			if (level == br->levels[i])
 				break;
 		if (i == br->count)
 			level = max_level;
-- 
cgit 


From 2c62333a408f5badd2d2ffd7177f95deeccc5ca4 Mon Sep 17 00:00:00 2001
From: Aaron Lu <aaron.lu@intel.com>
Date: Wed, 6 Nov 2013 09:07:10 +0800
Subject: ACPI / video: Quirk initial backlight level 0

Some firmware doesn't initialize initial backlight level to a proper
value and _BQC will return 0 on first time evaluation. We used to be
able to detect such incorrect value with our code logic, as value 0
normally isn't a valid value in _BCL. But with the introduction of Win8,
firmware begins to fill _BCL with values from 0 to 100, now 0 becomes
a valid value but that value will make user's screen black. This patch
test initial _BQC for value 0, if such a value is returned, do not use
it.

References: https://bugzilla.kernel.org/show_bug.cgi?id=64031
References: https://bugzilla.kernel.org/show_bug.cgi?id=61231
References: https://bugzilla.kernel.org/show_bug.cgi?id=63111
Reported-by: Qingshuai Tian <qingshuai.tian@intel.com>
Tested-by: Aaron Lu <aaron.lu@intel.com> # on "Idealpad u330p"
Reported-and-tested-by: <erno@iki.fi> # on "Acer Aspire V5-573G"
Reported-and-tested-by: Kirill Tkhai <tkhai@yandex.ru> # on "HP 250 G1"
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/video.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index bf521b36c2f9..a049fa9360d0 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -858,7 +858,7 @@ acpi_video_init_brightness(struct acpi_video_device *device)
 		for (i = 2; i < br->count; i++)
 			if (level == br->levels[i])
 				break;
-		if (i == br->count)
+		if (i == br->count || !level)
 			level = max_level;
 	}
 
-- 
cgit 


From 906f187b93d4b15e54066802f2a3100ca4681296 Mon Sep 17 00:00:00 2001
From: Aaron Lu <aaron.lu@intel.com>
Date: Wed, 6 Nov 2013 09:18:16 +0800
Subject: Revert "ACPI / video: Ignore BIOS initial backlight value for HP 250
 G1"

This reverts commit e37f14a5fb85522f3bbf88ece6134c4e610ed598.

It turned out other systems also share the same problem with bug 63111
so I made a patch to catch initial brightness level 0 problem. With that
patch applied, we do not need to place HP 250 G1 in DMI table.

References: https://bugzilla.kernel.org/show_bug.cgi?id=63111
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/video.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index a049fa9360d0..18dbdff4656e 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -504,14 +504,6 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion m4 Notebook PC"),
 		},
 	},
-	{
-	 .callback = video_ignore_initial_backlight,
-	 .ident = "HP 250 G1",
-	 .matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "HP 250 G1 Notebook PC"),
-		},
-	},
 	{}
 };
 
-- 
cgit 


From b6568b1a19ad995221d1816c4fcdd116d9c33e42 Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Thu, 7 Nov 2013 12:09:13 +1030
Subject: modpost: fix bogus 'exported twice' warnings.

Andi's change in e0f244c63fc9 ("asmlinkage, module: Make ksymtab and
kcrctab symbols and __this_module __visible") make the crc appear
first in the symbol table.

modpost creates an entry when it sees the CRC, then when it sees the
actual symbol, it complains that it's seen it before.  The preloaded
flag already exists for the equivalent case where we loaded from
Module.symvers, so use that.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Tested-by: The Awesome Power Of linux-next
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 scripts/mod/modpost.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 9b873ac6ed7b..5c677a3e7487 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -164,7 +164,7 @@ struct symbol {
 	unsigned int vmlinux:1;    /* 1 if symbol is defined in vmlinux */
 	unsigned int kernel:1;     /* 1 if symbol is from kernel
 				    *  (only for external modules) **/
-	unsigned int preloaded:1;  /* 1 if symbol from Module.symvers */
+	unsigned int preloaded:1;  /* 1 if symbol from Module.symvers, or crc */
 	enum export  export;       /* Type of export */
 	char name[0];
 };
@@ -332,8 +332,11 @@ static void sym_update_crc(const char *name, struct module *mod,
 {
 	struct symbol *s = find_symbol(name);
 
-	if (!s)
+	if (!s) {
 		s = new_symbol(name, mod, export);
+		/* Don't complain when we find it later. */
+		s->preloaded = 1;
+	}
 	s->crc = crc;
 	s->crc_valid = 1;
 }
-- 
cgit 


From 4ae85370720156025e9cb873c13a0afb06ca1612 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Tue, 5 Nov 2013 21:21:28 +1030
Subject: virtio: mmio: fix signature checking for BE guests

As virtio-mmio config registers are specified to be little-endian,
using readl() to read the magic value and then memcmp() to check it
fails on BE (as readl() has an implicit swab).

Fix it by encoding the magic value as an integer instead of a string.

Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 drivers/virtio/virtio_mmio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/virtio/virtio_mmio.c b/drivers/virtio/virtio_mmio.c
index e9fdeb861992..c600ccfd6922 100644
--- a/drivers/virtio/virtio_mmio.c
+++ b/drivers/virtio/virtio_mmio.c
@@ -471,7 +471,7 @@ static int virtio_mmio_probe(struct platform_device *pdev)
 
 	/* Check magic value */
 	magic = readl(vm_dev->base + VIRTIO_MMIO_MAGIC_VALUE);
-	if (memcmp(&magic, "virt", 4) != 0) {
+	if (magic != ('v' | 'i' << 8 | 'r' << 16 | 't' << 24)) {
 		dev_warn(&pdev->dev, "Wrong magic value 0x%08lx!\n", magic);
 		return -ENODEV;
 	}
-- 
cgit 


From cdd77e87eae52b7251acc5990207a1c4500a84ce Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Tue, 5 Nov 2013 21:22:28 +1030
Subject: x86, asmlinkage, lguest: Pass in globals into assembler statement

Tell the compiler that the inline assembler statement
references lguest_entry.

This fixes compile problems with LTO where the variable
and the assembler code may end up in different files.

Cc: x86@kernel.org
Cc: rusty@rustcorp.com.au
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 drivers/lguest/x86/core.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/lguest/x86/core.c b/drivers/lguest/x86/core.c
index 516923926335..922a1acbf652 100644
--- a/drivers/lguest/x86/core.c
+++ b/drivers/lguest/x86/core.c
@@ -157,7 +157,7 @@ static void run_guest_once(struct lg_cpu *cpu, struct lguest_pages *pages)
 	 * stack, then the address of this call.  This stack layout happens to
 	 * exactly match the stack layout created by an interrupt...
 	 */
-	asm volatile("pushf; lcall *lguest_entry"
+	asm volatile("pushf; lcall *%4"
 		     /*
 		      * This is how we tell GCC that %eax ("a") and %ebx ("b")
 		      * are changed by this routine.  The "=" means output.
@@ -169,7 +169,9 @@ static void run_guest_once(struct lg_cpu *cpu, struct lguest_pages *pages)
 		      * physical address of the Guest's top-level page
 		      * directory.
 		      */
-		     : "0"(pages), "1"(__pa(cpu->lg->pgdirs[cpu->cpu_pgd].pgdir))
+		     : "0"(pages), 
+		       "1"(__pa(cpu->lg->pgdirs[cpu->cpu_pgd].pgdir)),
+		       "m"(lguest_entry)
 		     /*
 		      * We tell gcc that all these registers could change,
 		      * which means we don't have to save and restore them in
-- 
cgit 


From 8f42d7698751a45cd9f7134a5da49bc5b6206179 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 6 Nov 2013 18:47:42 +0100
Subject: ALSA: hda - Add support for CX20952

It's a superset of the existing CX2075x codecs, so we can reuse the
existing parser code.

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_conexant.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index 993b25c17711..c205bb1747fd 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -3656,6 +3656,8 @@ static const struct hda_codec_preset snd_hda_preset_conexant[] = {
 	  .patch = patch_conexant_auto },
 	{ .id = 0x14f15115, .name = "CX20757",
 	  .patch = patch_conexant_auto },
+	{ .id = 0x14f151d7, .name = "CX20952",
+	  .patch = patch_conexant_auto },
 	{} /* terminator */
 };
 
@@ -3682,6 +3684,7 @@ MODULE_ALIAS("snd-hda-codec-id:14f15111");
 MODULE_ALIAS("snd-hda-codec-id:14f15113");
 MODULE_ALIAS("snd-hda-codec-id:14f15114");
 MODULE_ALIAS("snd-hda-codec-id:14f15115");
+MODULE_ALIAS("snd-hda-codec-id:14f151d7");
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Conexant HD-audio codec");
-- 
cgit 


From 487a588d09db0d6508261867df208d8bdc718251 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 7 Nov 2013 07:29:30 +0100
Subject: ALSA: hda - Add pincfg fixup for ASUS W5A

BIOS on ASUS W5A laptop with ALC880 codec doesn't provide any pin
configurations, so we have to set up all pins manually.

Reported-and-tested-by: nb <nb@dagami.org>
Cc: <stable@vger.kernel.org> [v3.4+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 215db601267d..44f12104e8a6 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -1045,6 +1045,7 @@ enum {
 	ALC880_FIXUP_UNIWILL,
 	ALC880_FIXUP_UNIWILL_DIG,
 	ALC880_FIXUP_Z71V,
+	ALC880_FIXUP_ASUS_W5A,
 	ALC880_FIXUP_3ST_BASE,
 	ALC880_FIXUP_3ST,
 	ALC880_FIXUP_3ST_DIG,
@@ -1215,6 +1216,26 @@ static const struct hda_fixup alc880_fixups[] = {
 			{ }
 		}
 	},
+	[ALC880_FIXUP_ASUS_W5A] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			/* set up the whole pins as BIOS is utterly broken */
+			{ 0x14, 0x0121411f }, /* HP */
+			{ 0x15, 0x411111f0 }, /* N/A */
+			{ 0x16, 0x411111f0 }, /* N/A */
+			{ 0x17, 0x411111f0 }, /* N/A */
+			{ 0x18, 0x90a60160 }, /* mic */
+			{ 0x19, 0x411111f0 }, /* N/A */
+			{ 0x1a, 0x411111f0 }, /* N/A */
+			{ 0x1b, 0x411111f0 }, /* N/A */
+			{ 0x1c, 0x411111f0 }, /* N/A */
+			{ 0x1d, 0x411111f0 }, /* N/A */
+			{ 0x1e, 0xb743111e }, /* SPDIF out */
+			{ }
+		},
+		.chained = true,
+		.chain_id = ALC880_FIXUP_GPIO1,
+	},
 	[ALC880_FIXUP_3ST_BASE] = {
 		.type = HDA_FIXUP_PINS,
 		.v.pins = (const struct hda_pintbl[]) {
@@ -1336,6 +1357,7 @@ static const struct hda_fixup alc880_fixups[] = {
 
 static const struct snd_pci_quirk alc880_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1019, 0x0f69, "Coeus G610P", ALC880_FIXUP_W810),
+	SND_PCI_QUIRK(0x1043, 0x10c3, "ASUS W5A", ALC880_FIXUP_ASUS_W5A),
 	SND_PCI_QUIRK(0x1043, 0x1964, "ASUS Z71V", ALC880_FIXUP_Z71V),
 	SND_PCI_QUIRK_VENDOR(0x1043, "ASUS", ALC880_FIXUP_GPIO1),
 	SND_PCI_QUIRK(0x1558, 0x5401, "Clevo GPIO2", ALC880_FIXUP_GPIO2),
-- 
cgit 


From f5ba0b0eda1dd119a8599415ca870e21f7c319e8 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 5 Nov 2013 09:29:55 -0800
Subject: jme: Remove unused #define PFX

It's unused, remove it.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/jme.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/net/ethernet/jme.h b/drivers/net/ethernet/jme.h
index 3efc897c9913..58cd67c0c8e4 100644
--- a/drivers/net/ethernet/jme.h
+++ b/drivers/net/ethernet/jme.h
@@ -28,7 +28,6 @@
 
 #define DRV_NAME	"jme"
 #define DRV_VERSION	"1.0.8"
-#define PFX		DRV_NAME ": "
 
 #define PCI_DEVICE_ID_JMICRON_JMC250	0x0250
 #define PCI_DEVICE_ID_JMICRON_JMC260	0x0260
-- 
cgit 


From acec6d75ac41bc22cd948f62689fac7b878401ff Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 5 Nov 2013 10:34:21 -0800
Subject: smsc9420: Use netif_<level>

Use a more standard logging style.

Convert smsc_<level> macros to use netif_<level>.
Remove unused #define PFX
Add pr_fmt and neaten pr_<level> uses.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/smsc/smsc9420.c | 155 +++++++++++++++++------------------
 1 file changed, 77 insertions(+), 78 deletions(-)

diff --git a/drivers/net/ethernet/smsc/smsc9420.c b/drivers/net/ethernet/smsc/smsc9420.c
index 059bcafc5e62..f433d97aa097 100644
--- a/drivers/net/ethernet/smsc/smsc9420.c
+++ b/drivers/net/ethernet/smsc/smsc9420.c
@@ -19,6 +19,8 @@
  ***************************************************************************
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/interrupt.h>
 #include <linux/kernel.h>
 #include <linux/netdevice.h>
@@ -33,7 +35,6 @@
 #include "smsc9420.h"
 
 #define DRV_NAME		"smsc9420"
-#define PFX			DRV_NAME ": "
 #define DRV_MDIONAME		"smsc9420-mdio"
 #define DRV_DESCRIPTION		"SMSC LAN9420 driver"
 #define DRV_VERSION		"1.01"
@@ -97,21 +98,6 @@ static uint debug = -1;
 module_param(debug, uint, 0);
 MODULE_PARM_DESC(debug, "debug level");
 
-#define smsc_dbg(TYPE, f, a...) \
-do {	if ((pd)->msg_enable & NETIF_MSG_##TYPE) \
-		netdev_dbg((pd)->dev, PFX f "\n", ## a); \
-} while (0)
-
-#define smsc_info(TYPE, f, a...) \
-do {	if ((pd)->msg_enable & NETIF_MSG_##TYPE) \
-		netdev_info((pd)->dev, PFX f "\n", ## a); \
-} while (0)
-
-#define smsc_warn(TYPE, f, a...) \
-do {	if ((pd)->msg_enable & NETIF_MSG_##TYPE) \
-		netdev_warn((pd)->dev, PFX f "\n", ## a); \
-} while (0)
-
 static inline u32 smsc9420_reg_read(struct smsc9420_pdata *pd, u32 offset)
 {
 	return ioread32(pd->ioaddr + offset);
@@ -140,7 +126,7 @@ static int smsc9420_mii_read(struct mii_bus *bus, int phyaddr, int regidx)
 
 	/*  confirm MII not busy */
 	if ((smsc9420_reg_read(pd, MII_ACCESS) & MII_ACCESS_MII_BUSY_)) {
-		smsc_warn(DRV, "MII is busy???");
+		netif_warn(pd, drv, pd->dev, "MII is busy???\n");
 		goto out;
 	}
 
@@ -159,7 +145,7 @@ static int smsc9420_mii_read(struct mii_bus *bus, int phyaddr, int regidx)
 		udelay(10);
 	}
 
-	smsc_warn(DRV, "MII busy timeout!");
+	netif_warn(pd, drv, pd->dev, "MII busy timeout!\n");
 
 out:
 	spin_unlock_irqrestore(&pd->phy_lock, flags);
@@ -178,7 +164,7 @@ static int smsc9420_mii_write(struct mii_bus *bus, int phyaddr, int regidx,
 
 	/* confirm MII not busy */
 	if ((smsc9420_reg_read(pd, MII_ACCESS) & MII_ACCESS_MII_BUSY_)) {
-		smsc_warn(DRV, "MII is busy???");
+		netif_warn(pd, drv, pd->dev, "MII is busy???\n");
 		goto out;
 	}
 
@@ -200,7 +186,7 @@ static int smsc9420_mii_write(struct mii_bus *bus, int phyaddr, int regidx,
 		udelay(10);
 	}
 
-	smsc_warn(DRV, "MII busy timeout!");
+	netif_warn(pd, drv, pd->dev, "MII busy timeout!\n");
 
 out:
 	spin_unlock_irqrestore(&pd->phy_lock, flags);
@@ -222,7 +208,7 @@ static int smsc9420_eeprom_reload(struct smsc9420_pdata *pd)
 	BUG_ON(!pd);
 
 	if (smsc9420_reg_read(pd, E2P_CMD) & E2P_CMD_EPC_BUSY_) {
-		smsc_dbg(DRV, "smsc9420_eeprom_reload: Eeprom busy");
+		netif_dbg(pd, drv, pd->dev, "%s: Eeprom busy\n", __func__);
 		return -EIO;
 	}
 
@@ -235,7 +221,7 @@ static int smsc9420_eeprom_reload(struct smsc9420_pdata *pd)
 			return 0;
 	} while (timeout--);
 
-	smsc_warn(DRV, "smsc9420_eeprom_reload: Eeprom timed out");
+	netif_warn(pd, drv, pd->dev, "%s: Eeprom timed out\n", __func__);
 	return -EIO;
 }
 
@@ -347,9 +333,9 @@ static int smsc9420_eeprom_send_cmd(struct smsc9420_pdata *pd, u32 op)
 	int timeout = 100;
 	u32 e2cmd;
 
-	smsc_dbg(HW, "op 0x%08x", op);
+	netif_dbg(pd, hw, pd->dev, "op 0x%08x\n", op);
 	if (smsc9420_reg_read(pd, E2P_CMD) & E2P_CMD_EPC_BUSY_) {
-		smsc_warn(HW, "Busy at start");
+		netif_warn(pd, hw, pd->dev, "Busy at start\n");
 		return -EBUSY;
 	}
 
@@ -362,12 +348,13 @@ static int smsc9420_eeprom_send_cmd(struct smsc9420_pdata *pd, u32 op)
 	} while ((e2cmd & E2P_CMD_EPC_BUSY_) && (--timeout));
 
 	if (!timeout) {
-		smsc_info(HW, "TIMED OUT");
+		netif_info(pd, hw, pd->dev, "TIMED OUT\n");
 		return -EAGAIN;
 	}
 
 	if (e2cmd & E2P_CMD_EPC_TIMEOUT_) {
-		smsc_info(HW, "Error occurred during eeprom operation");
+		netif_info(pd, hw, pd->dev,
+			   "Error occurred during eeprom operation\n");
 		return -EINVAL;
 	}
 
@@ -380,7 +367,7 @@ static int smsc9420_eeprom_read_location(struct smsc9420_pdata *pd,
 	u32 op = E2P_CMD_EPC_CMD_READ_ | address;
 	int ret;
 
-	smsc_dbg(HW, "address 0x%x", address);
+	netif_dbg(pd, hw, pd->dev, "address 0x%x\n", address);
 	ret = smsc9420_eeprom_send_cmd(pd, op);
 
 	if (!ret)
@@ -395,7 +382,7 @@ static int smsc9420_eeprom_write_location(struct smsc9420_pdata *pd,
 	u32 op = E2P_CMD_EPC_CMD_ERASE_ | address;
 	int ret;
 
-	smsc_dbg(HW, "address 0x%x, data 0x%x", address, data);
+	netif_dbg(pd, hw, pd->dev, "address 0x%x, data 0x%x\n", address, data);
 	ret = smsc9420_eeprom_send_cmd(pd, op);
 
 	if (!ret) {
@@ -492,7 +479,8 @@ static void smsc9420_check_mac_address(struct net_device *dev)
 	/* Check if mac address has been specified when bringing interface up */
 	if (is_valid_ether_addr(dev->dev_addr)) {
 		smsc9420_set_mac_address(dev);
-		smsc_dbg(PROBE, "MAC Address is specified by configuration");
+		netif_dbg(pd, probe, pd->dev,
+			  "MAC Address is specified by configuration\n");
 	} else {
 		/* Try reading mac address from device. if EEPROM is present
 		 * it will already have been set */
@@ -507,12 +495,14 @@ static void smsc9420_check_mac_address(struct net_device *dev)
 
 		if (is_valid_ether_addr(dev->dev_addr)) {
 			/* eeprom values are valid  so use them */
-			smsc_dbg(PROBE, "Mac Address is read from EEPROM");
+			netif_dbg(pd, probe, pd->dev,
+				  "Mac Address is read from EEPROM\n");
 		} else {
 			/* eeprom values are invalid, generate random MAC */
 			eth_hw_addr_random(dev);
 			smsc9420_set_mac_address(dev);
-			smsc_dbg(PROBE, "MAC Address is set to random");
+			netif_dbg(pd, probe, pd->dev,
+				  "MAC Address is set to random\n");
 		}
 	}
 }
@@ -535,7 +525,7 @@ static void smsc9420_stop_tx(struct smsc9420_pdata *pd)
 	}
 
 	if (!timeout)
-		smsc_warn(IFDOWN, "TX DMAC failed to stop");
+		netif_warn(pd, ifdown, pd->dev, "TX DMAC failed to stop\n");
 
 	/* ACK Tx DMAC stop bit */
 	smsc9420_reg_write(pd, DMAC_STATUS, DMAC_STS_TXPS_);
@@ -646,7 +636,8 @@ static void smsc9420_stop_rx(struct smsc9420_pdata *pd)
 	}
 
 	if (!timeout)
-		smsc_warn(IFDOWN, "RX DMAC did not stop! timeout.");
+		netif_warn(pd, ifdown, pd->dev,
+			   "RX DMAC did not stop! timeout\n");
 
 	/* ACK the Rx DMAC stop bit */
 	smsc9420_reg_write(pd, DMAC_STATUS, DMAC_STS_RXPS_);
@@ -736,7 +727,7 @@ static void smsc9420_dmac_soft_reset(struct smsc9420_pdata *pd)
 	smsc9420_reg_read(pd, BUS_MODE);
 	udelay(2);
 	if (smsc9420_reg_read(pd, BUS_MODE) & BUS_MODE_SWR_)
-		smsc_warn(DRV, "Software reset not cleared");
+		netif_warn(pd, drv, pd->dev, "Software reset not cleared\n");
 }
 
 static int smsc9420_stop(struct net_device *dev)
@@ -855,7 +846,7 @@ static int smsc9420_alloc_rx_buffer(struct smsc9420_pdata *pd, int index)
 				 PKT_BUF_SZ, PCI_DMA_FROMDEVICE);
 	if (pci_dma_mapping_error(pd->pdev, mapping)) {
 		dev_kfree_skb_any(skb);
-		smsc_warn(RX_ERR, "pci_map_single failed!");
+		netif_warn(pd, rx_err, pd->dev, "pci_map_single failed!\n");
 		return -ENOMEM;
 	}
 
@@ -1004,7 +995,8 @@ static netdev_tx_t smsc9420_hard_start_xmit(struct sk_buff *skb,
 	mapping = pci_map_single(pd->pdev, skb->data,
 				 skb->len, PCI_DMA_TODEVICE);
 	if (pci_dma_mapping_error(pd->pdev, mapping)) {
-		smsc_warn(TX_ERR, "pci_map_single failed, dropping packet");
+		netif_warn(pd, tx_err, pd->dev,
+			   "pci_map_single failed, dropping packet\n");
 		return NETDEV_TX_BUSY;
 	}
 
@@ -1056,12 +1048,12 @@ static void smsc9420_set_multicast_list(struct net_device *dev)
 	u32 mac_cr = smsc9420_reg_read(pd, MAC_CR);
 
 	if (dev->flags & IFF_PROMISC) {
-		smsc_dbg(HW, "Promiscuous Mode Enabled");
+		netif_dbg(pd, hw, pd->dev, "Promiscuous Mode Enabled\n");
 		mac_cr |= MAC_CR_PRMS_;
 		mac_cr &= (~MAC_CR_MCPAS_);
 		mac_cr &= (~MAC_CR_HPFILT_);
 	} else if (dev->flags & IFF_ALLMULTI) {
-		smsc_dbg(HW, "Receive all Multicast Enabled");
+		netif_dbg(pd, hw, pd->dev, "Receive all Multicast Enabled\n");
 		mac_cr &= (~MAC_CR_PRMS_);
 		mac_cr |= MAC_CR_MCPAS_;
 		mac_cr &= (~MAC_CR_HPFILT_);
@@ -1069,7 +1061,7 @@ static void smsc9420_set_multicast_list(struct net_device *dev)
 		struct netdev_hw_addr *ha;
 		u32 hash_lo = 0, hash_hi = 0;
 
-		smsc_dbg(HW, "Multicast filter enabled");
+		netif_dbg(pd, hw, pd->dev, "Multicast filter enabled\n");
 		netdev_for_each_mc_addr(ha, dev) {
 			u32 bit_num = smsc9420_hash(ha->addr);
 			u32 mask = 1 << (bit_num & 0x1F);
@@ -1087,7 +1079,7 @@ static void smsc9420_set_multicast_list(struct net_device *dev)
 		mac_cr &= (~MAC_CR_MCPAS_);
 		mac_cr |= MAC_CR_HPFILT_;
 	} else {
-		smsc_dbg(HW, "Receive own packets only.");
+		netif_dbg(pd, hw, pd->dev, "Receive own packets only\n");
 		smsc9420_reg_write(pd, HASHH, 0);
 		smsc9420_reg_write(pd, HASHL, 0);
 
@@ -1115,11 +1107,11 @@ static void smsc9420_phy_update_flowcontrol(struct smsc9420_pdata *pd)
 		else
 			flow = 0;
 
-		smsc_info(LINK, "rx pause %s, tx pause %s",
-			(cap & FLOW_CTRL_RX ? "enabled" : "disabled"),
-			(cap & FLOW_CTRL_TX ? "enabled" : "disabled"));
+		netif_info(pd, link, pd->dev, "rx pause %s, tx pause %s\n",
+			   cap & FLOW_CTRL_RX ? "enabled" : "disabled",
+			   cap & FLOW_CTRL_TX ? "enabled" : "disabled");
 	} else {
-		smsc_info(LINK, "half duplex");
+		netif_info(pd, link, pd->dev, "half duplex\n");
 		flow = 0;
 	}
 
@@ -1137,10 +1129,10 @@ static void smsc9420_phy_adjust_link(struct net_device *dev)
 	if (phy_dev->duplex != pd->last_duplex) {
 		u32 mac_cr = smsc9420_reg_read(pd, MAC_CR);
 		if (phy_dev->duplex) {
-			smsc_dbg(LINK, "full duplex mode");
+			netif_dbg(pd, link, pd->dev, "full duplex mode\n");
 			mac_cr |= MAC_CR_FDPX_;
 		} else {
-			smsc_dbg(LINK, "half duplex mode");
+			netif_dbg(pd, link, pd->dev, "half duplex mode\n");
 			mac_cr &= ~MAC_CR_FDPX_;
 		}
 		smsc9420_reg_write(pd, MAC_CR, mac_cr);
@@ -1152,9 +1144,9 @@ static void smsc9420_phy_adjust_link(struct net_device *dev)
 	carrier = netif_carrier_ok(dev);
 	if (carrier != pd->last_carrier) {
 		if (carrier)
-			smsc_dbg(LINK, "carrier OK");
+			netif_dbg(pd, link, pd->dev, "carrier OK\n");
 		else
-			smsc_dbg(LINK, "no carrier");
+			netif_dbg(pd, link, pd->dev, "no carrier\n");
 		pd->last_carrier = carrier;
 	}
 }
@@ -1173,8 +1165,8 @@ static int smsc9420_mii_probe(struct net_device *dev)
 	}
 
 	phydev = pd->mii_bus->phy_map[1];
-	smsc_info(PROBE, "PHY addr %d, phy_id 0x%08X", phydev->addr,
-		phydev->phy_id);
+	netif_info(pd, probe, pd->dev, "PHY addr %d, phy_id 0x%08X\n",
+		   phydev->addr, phydev->phy_id);
 
 	phydev = phy_connect(dev, dev_name(&phydev->dev),
 			     smsc9420_phy_adjust_link, PHY_INTERFACE_MODE_MII);
@@ -1223,12 +1215,12 @@ static int smsc9420_mii_init(struct net_device *dev)
 	pd->mii_bus->phy_mask = ~(1 << 1);
 
 	if (mdiobus_register(pd->mii_bus)) {
-		smsc_warn(PROBE, "Error registering mii bus");
+		netif_warn(pd, probe, pd->dev, "Error registering mii bus\n");
 		goto err_out_free_bus_2;
 	}
 
 	if (smsc9420_mii_probe(dev) < 0) {
-		smsc_warn(PROBE, "Error probing mii bus");
+		netif_warn(pd, probe, pd->dev, "Error probing mii bus\n");
 		goto err_out_unregister_bus_3;
 	}
 
@@ -1281,12 +1273,11 @@ static int smsc9420_alloc_rx_ring(struct smsc9420_pdata *pd)
 
 	BUG_ON(!pd->rx_ring);
 
-	pd->rx_buffers = kmalloc((sizeof(struct smsc9420_ring_info) *
-		RX_RING_SIZE), GFP_KERNEL);
-	if (pd->rx_buffers == NULL) {
-		smsc_warn(IFUP, "Failed to allocated rx_buffers");
+	pd->rx_buffers = kmalloc_array(RX_RING_SIZE,
+				       sizeof(struct smsc9420_ring_info),
+				       GFP_KERNEL);
+	if (pd->rx_buffers == NULL)
 		goto out;
-	}
 
 	/* initialize the rx ring */
 	for (i = 0; i < RX_RING_SIZE; i++) {
@@ -1301,7 +1292,8 @@ static int smsc9420_alloc_rx_ring(struct smsc9420_pdata *pd)
 	/* now allocate the entire ring of skbs */
 	for (i = 0; i < RX_RING_SIZE; i++) {
 		if (smsc9420_alloc_rx_buffer(pd, i)) {
-			smsc_warn(IFUP, "failed to allocate rx skb %d", i);
+			netif_warn(pd, ifup, pd->dev,
+				   "failed to allocate rx skb %d\n", i);
 			goto out_free_rx_skbs;
 		}
 	}
@@ -1310,13 +1302,14 @@ static int smsc9420_alloc_rx_ring(struct smsc9420_pdata *pd)
 	pd->rx_ring_tail = 0;
 
 	smsc9420_reg_write(pd, VLAN1, ETH_P_8021Q);
-	smsc_dbg(IFUP, "VLAN1 = 0x%08x", smsc9420_reg_read(pd, VLAN1));
+	netif_dbg(pd, ifup, pd->dev, "VLAN1 = 0x%08x\n",
+		  smsc9420_reg_read(pd, VLAN1));
 
 	if (pd->rx_csum) {
 		/* Enable RX COE */
 		u32 coe = smsc9420_reg_read(pd, COE_CR) | RX_COE_EN;
 		smsc9420_reg_write(pd, COE_CR, coe);
-		smsc_dbg(IFUP, "COE_CR = 0x%08x", coe);
+		netif_dbg(pd, ifup, pd->dev, "COE_CR = 0x%08x\n", coe);
 	}
 
 	smsc9420_reg_write(pd, RX_BASE_ADDR, pd->rx_dma_addr);
@@ -1339,7 +1332,8 @@ static int smsc9420_open(struct net_device *dev)
 	int result = 0, timeout;
 
 	if (!is_valid_ether_addr(dev->dev_addr)) {
-		smsc_warn(IFUP, "dev_addr is not a valid MAC address");
+		netif_warn(pd, ifup, pd->dev,
+			   "dev_addr is not a valid MAC address\n");
 		result = -EADDRNOTAVAIL;
 		goto out_0;
 	}
@@ -1358,7 +1352,7 @@ static int smsc9420_open(struct net_device *dev)
 
 	result = request_irq(irq, smsc9420_isr, IRQF_SHARED, DRV_NAME, pd);
 	if (result) {
-		smsc_warn(IFUP, "Unable to use IRQ = %d", irq);
+		netif_warn(pd, ifup, pd->dev, "Unable to use IRQ = %d\n", irq);
 		result = -ENODEV;
 		goto out_0;
 	}
@@ -1393,7 +1387,7 @@ static int smsc9420_open(struct net_device *dev)
 	smsc9420_pci_flush_write(pd);
 
 	/* test the IRQ connection to the ISR */
-	smsc_dbg(IFUP, "Testing ISR using IRQ %d", irq);
+	netif_dbg(pd, ifup, pd->dev, "Testing ISR using IRQ %d\n", irq);
 	pd->software_irq_signal = false;
 
 	spin_lock_irqsave(&pd->int_lock, flags);
@@ -1423,30 +1417,32 @@ static int smsc9420_open(struct net_device *dev)
 	spin_unlock_irqrestore(&pd->int_lock, flags);
 
 	if (!pd->software_irq_signal) {
-		smsc_warn(IFUP, "ISR failed signaling test");
+		netif_warn(pd, ifup, pd->dev, "ISR failed signaling test\n");
 		result = -ENODEV;
 		goto out_free_irq_1;
 	}
 
-	smsc_dbg(IFUP, "ISR passed test using IRQ %d", irq);
+	netif_dbg(pd, ifup, pd->dev, "ISR passed test using IRQ %d\n", irq);
 
 	result = smsc9420_alloc_tx_ring(pd);
 	if (result) {
-		smsc_warn(IFUP, "Failed to Initialize tx dma ring");
+		netif_warn(pd, ifup, pd->dev,
+			   "Failed to Initialize tx dma ring\n");
 		result = -ENOMEM;
 		goto out_free_irq_1;
 	}
 
 	result = smsc9420_alloc_rx_ring(pd);
 	if (result) {
-		smsc_warn(IFUP, "Failed to Initialize rx dma ring");
+		netif_warn(pd, ifup, pd->dev,
+			   "Failed to Initialize rx dma ring\n");
 		result = -ENOMEM;
 		goto out_free_tx_ring_2;
 	}
 
 	result = smsc9420_mii_init(dev);
 	if (result) {
-		smsc_warn(IFUP, "Failed to initialize Phy");
+		netif_warn(pd, ifup, pd->dev, "Failed to initialize Phy\n");
 		result = -ENODEV;
 		goto out_free_rx_ring_3;
 	}
@@ -1547,7 +1543,8 @@ static int smsc9420_resume(struct pci_dev *pdev)
 
 	err = pci_enable_wake(pdev, 0, 0);
 	if (err)
-		smsc_warn(IFUP, "pci_enable_wake failed: %d", err);
+		netif_warn(pd, ifup, pd->dev, "pci_enable_wake failed: %d\n",
+			   err);
 
 	if (netif_running(dev)) {
 		/* FIXME: gross. It looks like ancient PM relic.*/
@@ -1582,7 +1579,7 @@ smsc9420_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	int result = 0;
 	u32 id_rev;
 
-	pr_info(DRV_DESCRIPTION " version " DRV_VERSION "\n");
+	pr_info("%s version %s\n", DRV_DESCRIPTION, DRV_VERSION);
 
 	/* First do the PCI initialisation */
 	result = pci_enable_device(pdev);
@@ -1605,19 +1602,19 @@ smsc9420_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	}
 
 	if ((pci_request_regions(pdev, DRV_NAME))) {
-		netdev_err(dev, "Cannot obtain PCI resources, aborting.\n");
+		netdev_err(dev, "Cannot obtain PCI resources, aborting\n");
 		goto out_free_netdev_2;
 	}
 
 	if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
-		netdev_err(dev, "No usable DMA configuration, aborting.\n");
+		netdev_err(dev, "No usable DMA configuration, aborting\n");
 		goto out_free_regions_3;
 	}
 
 	virt_addr = ioremap(pci_resource_start(pdev, SMSC_BAR),
 		pci_resource_len(pdev, SMSC_BAR));
 	if (!virt_addr) {
-		netdev_err(dev, "Cannot map device registers, aborting.\n");
+		netdev_err(dev, "Cannot map device registers, aborting\n");
 		goto out_free_regions_3;
 	}
 
@@ -1646,16 +1643,17 @@ smsc9420_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	pd->msg_enable = smsc_debug;
 	pd->rx_csum = true;
 
-	smsc_dbg(PROBE, "lan_base=0x%08lx", (ulong)virt_addr);
+	netif_dbg(pd, probe, pd->dev, "lan_base=0x%08lx\n", (ulong)virt_addr);
 
 	id_rev = smsc9420_reg_read(pd, ID_REV);
 	switch (id_rev & 0xFFFF0000) {
 	case 0x94200000:
-		smsc_info(PROBE, "LAN9420 identified, ID_REV=0x%08X", id_rev);
+		netif_info(pd, probe, pd->dev,
+			   "LAN9420 identified, ID_REV=0x%08X\n", id_rev);
 		break;
 	default:
-		smsc_warn(PROBE, "LAN9420 NOT identified");
-		smsc_warn(PROBE, "ID_REV=0x%08X", id_rev);
+		netif_warn(pd, probe, pd->dev, "LAN9420 NOT identified\n");
+		netif_warn(pd, probe, pd->dev, "ID_REV=0x%08X\n", id_rev);
 		goto out_free_dmadesc_5;
 	}
 
@@ -1670,7 +1668,8 @@ smsc9420_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 
 	result = register_netdev(dev);
 	if (result) {
-		smsc_warn(PROBE, "error %i registering device", result);
+		netif_warn(pd, probe, pd->dev, "error %i registering device\n",
+			   result);
 		goto out_free_dmadesc_5;
 	}
 
-- 
cgit 


From f9bddcdf1fbbbab4996e079c5ea614baa1803b47 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 5 Nov 2013 14:13:47 -0800
Subject: udp: Remove unnecessary semicolon from do{}while (0) macro

Just an unnecessary semicolon that should be removed...

Whitespace neatening of macro too.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/udp.h | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/include/net/udp.h b/include/net/udp.h
index fe4ba9f32429..a24f0f3e107f 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -230,13 +230,13 @@ struct sock *__udp6_lib_lookup(struct net *net,
 } while(0)
 
 #if IS_ENABLED(CONFIG_IPV6)
-#define UDPX_INC_STATS_BH(sk, field) \
-	do { \
-		if ((sk)->sk_family == AF_INET) \
-			UDP_INC_STATS_BH(sock_net(sk), field, 0); \
-		else \
-			UDP6_INC_STATS_BH(sock_net(sk), field, 0); \
-	} while (0);
+#define UDPX_INC_STATS_BH(sk, field)					\
+do {									\
+	if ((sk)->sk_family == AF_INET)					\
+		UDP_INC_STATS_BH(sock_net(sk), field, 0);		\
+	else								\
+		UDP6_INC_STATS_BH(sock_net(sk), field, 0);		\
+} while (0)
 #else
 #define UDPX_INC_STATS_BH(sk, field) UDP_INC_STATS_BH(sock_net(sk), field, 0)
 #endif
-- 
cgit 


From 2a46f83570380ee2f5893a5bb2402ce2945f4f23 Mon Sep 17 00:00:00 2001
From: Alexander Sverdlin <alexander.sverdlin@nsn.com>
Date: Wed, 2 Oct 2013 18:42:29 +0200
Subject: mtd: phram: Make phram 64-bit compatible

phram was 32-bit limited by design. Machines are growing up, but phram
module is still useful. Update it. The patch is bigger than minimum,
because simple_strtoul() is obsolete.

Tested on MIPS64 and compile-tested for PPC (32 bit).

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nsn.com>
Reviewed-by: Joern Engel <joern@logfs.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/devices/phram.c | 66 ++++++++++++++++++++++-----------------------
 1 file changed, 33 insertions(+), 33 deletions(-)

diff --git a/drivers/mtd/devices/phram.c b/drivers/mtd/devices/phram.c
index 67823de68db6..e1f2aebaa489 100644
--- a/drivers/mtd/devices/phram.c
+++ b/drivers/mtd/devices/phram.c
@@ -94,7 +94,7 @@ static void unregister_devices(void)
 	}
 }
 
-static int register_device(char *name, unsigned long start, unsigned long len)
+static int register_device(char *name, phys_addr_t start, size_t len)
 {
 	struct phram_mtd_list *new;
 	int ret = -ENOMEM;
@@ -141,35 +141,35 @@ out0:
 	return ret;
 }
 
-static int ustrtoul(const char *cp, char **endp, unsigned int base)
+static int parse_num64(uint64_t *num64, char *token)
 {
-	unsigned long result = simple_strtoul(cp, endp, base);
-
-	switch (**endp) {
-	case 'G':
-		result *= 1024;
-	case 'M':
-		result *= 1024;
-	case 'k':
-		result *= 1024;
+	size_t len;
+	int shift = 0;
+	int ret;
+
+	len = strlen(token);
 	/* By dwmw2 editorial decree, "ki", "Mi" or "Gi" are to be used. */
-		if ((*endp)[1] == 'i')
-			(*endp) += 2;
+	if (len > 2) {
+		if (token[len - 1] == 'i') {
+			switch (token[len - 2]) {
+			case 'G':
+				shift += 10;
+			case 'M':
+				shift += 10;
+			case 'k':
+				shift += 10;
+				token[len - 2] = 0;
+				break;
+			default:
+				return -EINVAL;
+			}
+		}
 	}
-	return result;
-}
 
-static int parse_num32(uint32_t *num32, const char *token)
-{
-	char *endp;
-	unsigned long n;
+	ret = kstrtou64(token, 0, num64);
+	*num64 <<= shift;
 
-	n = ustrtoul(token, &endp, 0);
-	if (*endp)
-		return -EINVAL;
-
-	*num32 = n;
-	return 0;
+	return ret;
 }
 
 static int parse_name(char **pname, const char *token)
@@ -209,19 +209,19 @@ static inline void kill_final_newline(char *str)
  * This shall contain the module parameter if any. It is of the form:
  * - phram=<device>,<address>,<size> for module case
  * - phram.phram=<device>,<address>,<size> for built-in case
- * We leave 64 bytes for the device name, 12 for the address and 12 for the
+ * We leave 64 bytes for the device name, 20 for the address and 20 for the
  * size.
  * Example: phram.phram=rootfs,0xa0000000,512Mi
  */
-static __initdata char phram_paramline[64+12+12];
+static __initdata char phram_paramline[64 + 20 + 20];
 
 static int __init phram_setup(const char *val)
 {
-	char buf[64+12+12], *str = buf;
+	char buf[64 + 20 + 20], *str = buf;
 	char *token[3];
 	char *name;
-	uint32_t start;
-	uint32_t len;
+	uint64_t start;
+	uint64_t len;
 	int i, ret;
 
 	if (strnlen(val, sizeof(buf)) >= sizeof(buf))
@@ -243,13 +243,13 @@ static int __init phram_setup(const char *val)
 	if (ret)
 		return ret;
 
-	ret = parse_num32(&start, token[1]);
+	ret = parse_num64(&start, token[1]);
 	if (ret) {
 		kfree(name);
 		parse_err("illegal start address\n");
 	}
 
-	ret = parse_num32(&len, token[2]);
+	ret = parse_num64(&len, token[2]);
 	if (ret) {
 		kfree(name);
 		parse_err("illegal device length\n");
@@ -257,7 +257,7 @@ static int __init phram_setup(const char *val)
 
 	ret = register_device(name, start, len);
 	if (!ret)
-		pr_info("%s device: %#x at %#x\n", name, len, start);
+		pr_info("%s device: %#llx at %#llx\n", name, len, start);
 	else
 		kfree(name);
 
-- 
cgit 


From fe7feb9983dc4f5caadc72c11cee1f1162930533 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 23 Sep 2013 10:29:58 +0900
Subject: mtd: intel_vr_nor: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/maps/intel_vr_nor.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/mtd/maps/intel_vr_nor.c b/drivers/mtd/maps/intel_vr_nor.c
index f581ac1cf022..46d195fca942 100644
--- a/drivers/mtd/maps/intel_vr_nor.c
+++ b/drivers/mtd/maps/intel_vr_nor.c
@@ -180,7 +180,6 @@ static void vr_nor_pci_remove(struct pci_dev *dev)
 {
 	struct vr_nor_mtd *p = pci_get_drvdata(dev);
 
-	pci_set_drvdata(dev, NULL);
 	vr_nor_destroy_partitions(p);
 	vr_nor_destroy_mtd_setup(p);
 	vr_nor_destroy_maps(p);
-- 
cgit 


From cd688920c549da7dbe303dfe21575d4a88adde38 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 23 Sep 2013 10:30:52 +0900
Subject: mtd: pci: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/maps/pci.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/mtd/maps/pci.c b/drivers/mtd/maps/pci.c
index c2604f8b2a5e..36da518915b5 100644
--- a/drivers/mtd/maps/pci.c
+++ b/drivers/mtd/maps/pci.c
@@ -316,7 +316,6 @@ static void mtd_pci_remove(struct pci_dev *dev)
 	map->exit(dev, map);
 	kfree(map);
 
-	pci_set_drvdata(dev, NULL);
 	pci_release_regions(dev);
 }
 
-- 
cgit 


From 4d47011b39a8a2cd29560fee708681b20a5e9a8b Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 23 Sep 2013 10:31:30 +0900
Subject: mtd: scb2_flash: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/maps/scb2_flash.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/mtd/maps/scb2_flash.c b/drivers/mtd/maps/scb2_flash.c
index c77b68c9412f..3051c4c36240 100644
--- a/drivers/mtd/maps/scb2_flash.c
+++ b/drivers/mtd/maps/scb2_flash.c
@@ -212,7 +212,6 @@ static void scb2_flash_remove(struct pci_dev *dev)
 
 	if (!region_fail)
 		release_mem_region(SCB2_ADDR, SCB2_WINDOW);
-	pci_set_drvdata(dev, NULL);
 }
 
 static struct pci_device_id scb2_flash_pci_ids[] = {
-- 
cgit 


From 60d0dc7fa1615bc8b021fef253f3a17dd4f90e70 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 23 Sep 2013 10:32:27 +0900
Subject: mtd: denali: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/denali_pci.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/mtd/nand/denali_pci.c b/drivers/mtd/nand/denali_pci.c
index e3e46623b2b4..033f177a6369 100644
--- a/drivers/mtd/nand/denali_pci.c
+++ b/drivers/mtd/nand/denali_pci.c
@@ -119,7 +119,6 @@ static void denali_pci_remove(struct pci_dev *dev)
 	iounmap(denali->flash_mem);
 	pci_release_regions(dev);
 	pci_disable_device(dev);
-	pci_set_drvdata(dev, NULL);
 	kfree(denali);
 }
 
-- 
cgit 


From 6dcd592022678e44c6fc705ca6f287b4e7ee338f Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 15:10:22 +0530
Subject: mtd: nand: lpc32xx_mlc: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/lpc32xx_mlc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/lpc32xx_mlc.c b/drivers/mtd/nand/lpc32xx_mlc.c
index f4dd2a887ea5..327d96c03505 100644
--- a/drivers/mtd/nand/lpc32xx_mlc.c
+++ b/drivers/mtd/nand/lpc32xx_mlc.c
@@ -905,7 +905,7 @@ static struct platform_driver lpc32xx_nand_driver = {
 	.driver		= {
 		.name	= DRV_NAME,
 		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(lpc32xx_nand_match),
+		.of_match_table = lpc32xx_nand_match,
 	},
 };
 
-- 
cgit 


From fea7b5697ba74102f905ecf318a34f2429071a0a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 15:10:23 +0530
Subject: mtd: nand: lpc32xx_slc: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/lpc32xx_slc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c
index 6d5f8c515436..23e6974ccd20 100644
--- a/drivers/mtd/nand/lpc32xx_slc.c
+++ b/drivers/mtd/nand/lpc32xx_slc.c
@@ -1015,7 +1015,7 @@ static struct platform_driver lpc32xx_nand_driver = {
 	.driver		= {
 		.name	= LPC32XX_MODNAME,
 		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(lpc32xx_nand_match),
+		.of_match_table = lpc32xx_nand_match,
 	},
 };
 
-- 
cgit 


From 5576bc7bef2919dd2b185bffb768bf9c0da76788 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 15:10:24 +0530
Subject: mtd: nand: pxa3xx_nand: Remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/pxa3xx_nand.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index c28d4e29af1a..e08c3c058904 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -1412,7 +1412,7 @@ static int pxa3xx_nand_resume(struct platform_device *pdev)
 static struct platform_driver pxa3xx_nand_driver = {
 	.driver = {
 		.name	= "pxa3xx-nand",
-		.of_match_table = of_match_ptr(pxa3xx_nand_dt_ids),
+		.of_match_table = pxa3xx_nand_dt_ids,
 	},
 	.probe		= pxa3xx_nand_probe,
 	.remove		= pxa3xx_nand_remove,
-- 
cgit 


From 2aabeb20ee4b2f4dce5d4b3855cea42d42c33772 Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Tue, 8 Oct 2013 20:59:08 -0300
Subject: mtd: Use MTD_BLOCK_MAJOR instead of the magic number

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/mtdblock.c    | 2 +-
 drivers/mtd/mtdblock_ro.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c
index 2aef5dda522b..53884cc25916 100644
--- a/drivers/mtd/mtdblock.c
+++ b/drivers/mtd/mtdblock.c
@@ -373,7 +373,7 @@ static void mtdblock_remove_dev(struct mtd_blktrans_dev *dev)
 
 static struct mtd_blktrans_ops mtdblock_tr = {
 	.name		= "mtdblock",
-	.major		= 31,
+	.major		= MTD_BLOCK_MAJOR,
 	.part_bits	= 0,
 	.blksize 	= 512,
 	.open		= mtdblock_open,
diff --git a/drivers/mtd/mtdblock_ro.c b/drivers/mtd/mtdblock_ro.c
index 92759a9d2985..70d27b4d632b 100644
--- a/drivers/mtd/mtdblock_ro.c
+++ b/drivers/mtd/mtdblock_ro.c
@@ -70,7 +70,7 @@ static void mtdblock_remove_dev(struct mtd_blktrans_dev *dev)
 
 static struct mtd_blktrans_ops mtdblock_tr = {
 	.name		= "mtdblock",
-	.major		= 31,
+	.major		= MTD_BLOCK_MAJOR,
 	.part_bits	= 0,
 	.blksize 	= 512,
 	.readsect	= mtdblock_readsect,
-- 
cgit 


From fcfd9f2dd786a79400e1e799713ff71e939b40b5 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 8 Oct 2013 14:51:33 +0530
Subject: mtd: sst25l: Remove redundant spi_set_drvdata

Driver core will set the driver data to NULL upon detach
or probe failure.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/devices/sst25l.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/mtd/devices/sst25l.c b/drivers/mtd/devices/sst25l.c
index a42f1f0e7281..7cc70db97e59 100644
--- a/drivers/mtd/devices/sst25l.c
+++ b/drivers/mtd/devices/sst25l.c
@@ -404,7 +404,6 @@ static int sst25l_probe(struct spi_device *spi)
 					data ? data->nr_parts : 0);
 	if (ret) {
 		kfree(flash);
-		spi_set_drvdata(spi, NULL);
 		return -ENODEV;
 	}
 
-- 
cgit 


From b38be288140c3d5317bf55439cd3d6fd6395a98e Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 8 Oct 2013 14:51:34 +0530
Subject: mtd: sst25l: Use devm_kzalloc

devm_kzalloc is device managed and makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/devices/sst25l.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/mtd/devices/sst25l.c b/drivers/mtd/devices/sst25l.c
index 7cc70db97e59..687bf27ec850 100644
--- a/drivers/mtd/devices/sst25l.c
+++ b/drivers/mtd/devices/sst25l.c
@@ -364,7 +364,7 @@ static int sst25l_probe(struct spi_device *spi)
 	if (!flash_info)
 		return -ENODEV;
 
-	flash = kzalloc(sizeof(struct sst25l_flash), GFP_KERNEL);
+	flash = devm_kzalloc(&spi->dev, sizeof(*flash), GFP_KERNEL);
 	if (!flash)
 		return -ENOMEM;
 
@@ -402,10 +402,8 @@ static int sst25l_probe(struct spi_device *spi)
 	ret = mtd_device_parse_register(&flash->mtd, NULL, NULL,
 					data ? data->parts : NULL,
 					data ? data->nr_parts : 0);
-	if (ret) {
-		kfree(flash);
+	if (ret)
 		return -ENODEV;
-	}
 
 	return 0;
 }
@@ -413,12 +411,8 @@ static int sst25l_probe(struct spi_device *spi)
 static int sst25l_remove(struct spi_device *spi)
 {
 	struct sst25l_flash *flash = spi_get_drvdata(spi);
-	int ret;
 
-	ret = mtd_device_unregister(&flash->mtd);
-	if (ret == 0)
-		kfree(flash);
-	return ret;
+	return mtd_device_unregister(&flash->mtd);
 }
 
 static struct spi_driver sst25l_driver = {
-- 
cgit 


From bcecd39ef06ecf27233a30d516367d0be7e9145f Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 8 Oct 2013 15:08:19 +0530
Subject: mtd: fsl_ifc_nand: Remove redundant dev_set_drvdata

Driver core will set the driver data to NULL upon detach or
probe failure.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/fsl_ifc_nand.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index 47acda6c4e92..64a30ef1421c 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -905,7 +905,6 @@ static int fsl_ifc_chip_remove(struct fsl_ifc_mtd *priv)
 		iounmap(priv->vbase);
 
 	ifc_nand_ctrl->chips[priv->bank] = NULL;
-	dev_set_drvdata(priv->dev, NULL);
 
 	return 0;
 }
-- 
cgit 


From c69ad0ef2fa58168b9aec7f7d1561c9e43376239 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 8 Oct 2013 15:08:20 +0530
Subject: mtd: fsl_ifc_nand: Use module_platform_driver

module_platform_driver removes boiler plate code and makes it
simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/fsl_ifc_nand.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index 64a30ef1421c..1c173d91cbea 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -1079,25 +1079,7 @@ static struct platform_driver fsl_ifc_nand_driver = {
 	.remove      = fsl_ifc_nand_remove,
 };
 
-static int __init fsl_ifc_nand_init(void)
-{
-	int ret;
-
-	ret = platform_driver_register(&fsl_ifc_nand_driver);
-	if (ret)
-		printk(KERN_ERR "fsl-ifc: Failed to register platform"
-				"driver\n");
-
-	return ret;
-}
-
-static void __exit fsl_ifc_nand_exit(void)
-{
-	platform_driver_unregister(&fsl_ifc_nand_driver);
-}
-
-module_init(fsl_ifc_nand_init);
-module_exit(fsl_ifc_nand_exit);
+module_platform_driver(fsl_ifc_nand_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Freescale");
-- 
cgit 


From ecb598d0b2ca4897a3962aed7680ee3d28dda6e8 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 8 Oct 2013 15:31:45 +0530
Subject: mtd: socrates_nand: Remove redundant dev_set_drvdata

Driver core will set the driver data to NULL upon detach or
probe failure.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/socrates_nand.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c
index 09dde7d27178..f44c7c884a20 100644
--- a/drivers/mtd/nand/socrates_nand.c
+++ b/drivers/mtd/nand/socrates_nand.c
@@ -211,7 +211,6 @@ static int socrates_nand_probe(struct platform_device *ofdev)
 	nand_release(mtd);
 
 out:
-	dev_set_drvdata(&ofdev->dev, NULL);
 	iounmap(host->io_base);
 	kfree(host);
 	return res;
@@ -227,7 +226,6 @@ static int socrates_nand_remove(struct platform_device *ofdev)
 
 	nand_release(mtd);
 
-	dev_set_drvdata(&ofdev->dev, NULL);
 	iounmap(host->io_base);
 	kfree(host);
 
-- 
cgit 


From cf3a9b56a128ec8a1631c29aacb8cf19b55ea73d Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 8 Oct 2013 15:31:46 +0530
Subject: mtd: socrates_nand: Use devm_kzalloc

devm_kzalloc is device managed and makes code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/socrates_nand.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c
index f44c7c884a20..e77da7efa200 100644
--- a/drivers/mtd/nand/socrates_nand.c
+++ b/drivers/mtd/nand/socrates_nand.c
@@ -149,17 +149,13 @@ static int socrates_nand_probe(struct platform_device *ofdev)
 	struct mtd_part_parser_data ppdata;
 
 	/* Allocate memory for the device structure (and zero it) */
-	host = kzalloc(sizeof(struct socrates_nand_host), GFP_KERNEL);
-	if (!host) {
-		printk(KERN_ERR
-		       "socrates_nand: failed to allocate device structure.\n");
+	host = devm_kzalloc(&ofdev->dev, sizeof(*host), GFP_KERNEL);
+	if (!host)
 		return -ENOMEM;
-	}
 
 	host->io_base = of_iomap(ofdev->dev.of_node, 0);
 	if (host->io_base == NULL) {
 		printk(KERN_ERR "socrates_nand: ioremap failed\n");
-		kfree(host);
 		return -EIO;
 	}
 
@@ -212,7 +208,6 @@ static int socrates_nand_probe(struct platform_device *ofdev)
 
 out:
 	iounmap(host->io_base);
-	kfree(host);
 	return res;
 }
 
@@ -227,7 +222,6 @@ static int socrates_nand_remove(struct platform_device *ofdev)
 	nand_release(mtd);
 
 	iounmap(host->io_base);
-	kfree(host);
 
 	return 0;
 }
-- 
cgit 


From 5422933d58c28ebc67c7425f20e85ef27b730188 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 8 Oct 2013 15:38:08 +0530
Subject: mtd: socrates_nand: Use dev_err instead of printk

dev_err is preferred to printk.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/socrates_nand.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c
index e77da7efa200..9a9fa4949b4f 100644
--- a/drivers/mtd/nand/socrates_nand.c
+++ b/drivers/mtd/nand/socrates_nand.c
@@ -155,7 +155,7 @@ static int socrates_nand_probe(struct platform_device *ofdev)
 
 	host->io_base = of_iomap(ofdev->dev.of_node, 0);
 	if (host->io_base == NULL) {
-		printk(KERN_ERR "socrates_nand: ioremap failed\n");
+		dev_err(&ofdev->dev, "ioremap failed\n");
 		return -EIO;
 	}
 
-- 
cgit 


From 9fee840c03d944ed1564c127375a702e242d9555 Mon Sep 17 00:00:00 2001
From: Mike Dunn <mikedunn@newsguy.com>
Date: Thu, 10 Oct 2013 10:25:27 -0700
Subject: mtd: docg4: fix status polling loop

The loop that polls the status register waiting for an operation to complete
foolishly bases the timeout simply on the number of loop iterations that have
ocurred.  When I increased the processor clock speed, timeouts started to appear
for long block erasure operations.  This patch measures the timeout using
jiffies.

Signed-off-by: Mike Dunn <mikedunn@newsguy.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/docg4.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c
index 7c38b8ad4404..bd1cb672034f 100644
--- a/drivers/mtd/nand/docg4.c
+++ b/drivers/mtd/nand/docg4.c
@@ -44,6 +44,7 @@
 #include <linux/mtd/nand.h>
 #include <linux/bch.h>
 #include <linux/bitrev.h>
+#include <linux/jiffies.h>
 
 /*
  * In "reliable mode" consecutive 2k pages are used in parallel (in some
@@ -269,7 +270,7 @@ static int poll_status(struct docg4_priv *doc)
 	 */
 
 	uint16_t flash_status;
-	unsigned int timeo;
+	unsigned long timeo;
 	void __iomem *docptr = doc->virtadr;
 
 	dev_dbg(doc->dev, "%s...\n", __func__);
@@ -277,22 +278,18 @@ static int poll_status(struct docg4_priv *doc)
 	/* hardware quirk requires reading twice initially */
 	flash_status = readw(docptr + DOC_FLASHCONTROL);
 
-	timeo = 1000;
+	timeo = jiffies + msecs_to_jiffies(200); /* generous timeout */
 	do {
 		cpu_relax();
 		flash_status = readb(docptr + DOC_FLASHCONTROL);
-	} while (!(flash_status & DOC_CTRL_FLASHREADY) && --timeo);
+	} while (!(flash_status & DOC_CTRL_FLASHREADY) &&
+		 time_before(jiffies, timeo));
 
-
-	if (!timeo) {
+	if (unlikely(!(flash_status & DOC_CTRL_FLASHREADY))) {
 		dev_err(doc->dev, "%s: timed out!\n", __func__);
 		return NAND_STATUS_FAIL;
 	}
 
-	if (unlikely(timeo < 50))
-		dev_warn(doc->dev, "%s: nearly timed out; %d remaining\n",
-			 __func__, timeo);
-
 	return 0;
 }
 
-- 
cgit 


From 39ac9ca336314b39df1488087c05a8214266869c Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 11 Oct 2013 12:40:21 +0800
Subject: mtg: docg3: use free_bch() instead of kfree()

Use free_bch() instead of kfree() to free init_bch()
allocated data.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/devices/docg3.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/devices/docg3.c b/drivers/mtd/devices/docg3.c
index 3e1b0a0ef4db..4f091c1a9981 100644
--- a/drivers/mtd/devices/docg3.c
+++ b/drivers/mtd/devices/docg3.c
@@ -2097,7 +2097,7 @@ notfound:
 	ret = -ENODEV;
 	dev_info(dev, "No supported DiskOnChip found\n");
 err_probe:
-	kfree(cascade->bch);
+	free_bch(cascade->bch);
 	for (floor = 0; floor < DOC_MAX_NBFLOORS; floor++)
 		if (cascade->floors[floor])
 			doc_release_device(cascade->floors[floor]);
-- 
cgit 


From 867f770de8127d2e1dd730ce60608dfdac08d863 Mon Sep 17 00:00:00 2001
From: Priyanka Jain <Priyanka.Jain@freescale.com>
Date: Tue, 15 Oct 2013 11:09:05 +0530
Subject: mtd: m25p80: Add support for Micron N25Q512A memory

Micron N25Q512A is a spi flash memory with following features:
-64MB size, 1.8V, Mulitple I/O, 4KB Sector erase memory.
-Memory is organised as 1024(64KB) main sectors.
-Each sector is divided into 256 pages.
-Register set/Opcodes are similar to other N25Q family products.

Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/devices/m25p80.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index fbc8e7308027..8d6c87be9598 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -790,6 +790,7 @@ static const struct spi_device_id m25p_ids[] = {
 	{ "n25q128a11",  INFO(0x20bb18, 0, 64 * 1024, 256, 0) },
 	{ "n25q128a13",  INFO(0x20ba18, 0, 64 * 1024, 256, 0) },
 	{ "n25q256a", INFO(0x20ba19, 0, 64 * 1024, 512, SECT_4K) },
+	{ "n25q512a", INFO(0x20bb20, 0, 64 * 1024, 1024, SECT_4K) },
 
 	/* PMC */
 	{ "pm25lv512", INFO(0, 0, 32 * 1024, 2, SECT_4K_PMC) },
-- 
cgit 


From 95b26563c739d5ed5101318b1bd8895773a3d872 Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Fri, 4 Oct 2013 15:30:37 -0300
Subject: mtd: nand: pxa3xx: Move DMA I/O enabling

Instead of setting info->dma each time a command is prepared,
we can move it after the DMA buffers are allocated.

This is more clear and it's the proper place to enable this, given
DMA cannot be turned on and off during runtime.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/pxa3xx_nand.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index e08c3c058904..287997487b95 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -540,7 +540,6 @@ static int prepare_command_pool(struct pxa3xx_nand_info *info, int command,
 	info->oob_size		= 0;
 	info->use_ecc		= 0;
 	info->use_spare		= 1;
-	info->use_dma		= (use_dma) ? 1 : 0;
 	info->is_ready		= 0;
 	info->retcode		= ERR_NONE;
 	if (info->cs != 0)
@@ -950,6 +949,11 @@ static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info)
 		return info->data_dma_ch;
 	}
 
+	/*
+	 * Now that DMA buffers are allocated we turn on
+	 * DMA proper for I/O operations.
+	 */
+	info->use_dma = 1;
 	return 0;
 }
 
-- 
cgit 


From 62e8b851783138a11da63285be0fbf69530ff73d Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Fri, 4 Oct 2013 15:30:38 -0300
Subject: mtd: nand: pxa3xx: Allocate data buffer on detected flash size

This commit replaces the currently hardcoded buffer size, by a
dynamic detection scheme. First a small 256 bytes buffer is allocated
so the device can be detected (using READID and friends commands).

After detection, this buffer is released and a new buffer is allocated
to acommodate the page size plus out-of-band size.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/pxa3xx_nand.c | 45 ++++++++++++++++++++++++++++--------------
 1 file changed, 30 insertions(+), 15 deletions(-)

diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index 287997487b95..64c258ec0170 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -39,6 +39,13 @@
 #define NAND_STOP_DELAY		(2 * HZ/50)
 #define PAGE_CHUNK_SIZE		(2048)
 
+/*
+ * Define a buffer size for the initial command that detects the flash device:
+ * STATUS, READID and PARAM. The largest of these is the PARAM command,
+ * needing 256 bytes.
+ */
+#define INIT_BUFFER_SIZE	256
+
 /* registers and bit definitions */
 #define NDCR		(0x00) /* Control register */
 #define NDTR0CS0	(0x04) /* Timing Parameter 0 for CS0 */
@@ -164,6 +171,7 @@ struct pxa3xx_nand_info {
 
 	unsigned int 		buf_start;
 	unsigned int		buf_count;
+	unsigned int		buf_size;
 
 	/* DMA information */
 	int			drcmr_dat;
@@ -911,26 +919,20 @@ static int pxa3xx_nand_detect_config(struct pxa3xx_nand_info *info)
 	return 0;
 }
 
-/* the maximum possible buffer size for large page with OOB data
- * is: 2048 + 64 = 2112 bytes, allocate a page here for both the
- * data buffer and the DMA descriptor
- */
-#define MAX_BUFF_SIZE	PAGE_SIZE
-
 #ifdef ARCH_HAS_DMA
 static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info)
 {
 	struct platform_device *pdev = info->pdev;
-	int data_desc_offset = MAX_BUFF_SIZE - sizeof(struct pxa_dma_desc);
+	int data_desc_offset = info->buf_size - sizeof(struct pxa_dma_desc);
 
 	if (use_dma == 0) {
-		info->data_buff = kmalloc(MAX_BUFF_SIZE, GFP_KERNEL);
+		info->data_buff = kmalloc(info->buf_size, GFP_KERNEL);
 		if (info->data_buff == NULL)
 			return -ENOMEM;
 		return 0;
 	}
 
-	info->data_buff = dma_alloc_coherent(&pdev->dev, MAX_BUFF_SIZE,
+	info->data_buff = dma_alloc_coherent(&pdev->dev, info->buf_size,
 				&info->data_buff_phys, GFP_KERNEL);
 	if (info->data_buff == NULL) {
 		dev_err(&pdev->dev, "failed to allocate dma buffer\n");
@@ -944,7 +946,7 @@ static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info)
 				pxa3xx_nand_data_dma_irq, info);
 	if (info->data_dma_ch < 0) {
 		dev_err(&pdev->dev, "failed to request data dma\n");
-		dma_free_coherent(&pdev->dev, MAX_BUFF_SIZE,
+		dma_free_coherent(&pdev->dev, info->buf_size,
 				info->data_buff, info->data_buff_phys);
 		return info->data_dma_ch;
 	}
@@ -962,7 +964,7 @@ static void pxa3xx_nand_free_buff(struct pxa3xx_nand_info *info)
 	struct platform_device *pdev = info->pdev;
 	if (use_dma) {
 		pxa_free_dma(info->data_dma_ch);
-		dma_free_coherent(&pdev->dev, MAX_BUFF_SIZE,
+		dma_free_coherent(&pdev->dev, info->buf_size,
 				  info->data_buff, info->data_buff_phys);
 	} else {
 		kfree(info->data_buff);
@@ -971,7 +973,7 @@ static void pxa3xx_nand_free_buff(struct pxa3xx_nand_info *info)
 #else
 static int pxa3xx_nand_init_buff(struct pxa3xx_nand_info *info)
 {
-	info->data_buff = kmalloc(MAX_BUFF_SIZE, GFP_KERNEL);
+	info->data_buff = kmalloc(info->buf_size, GFP_KERNEL);
 	if (info->data_buff == NULL)
 		return -ENOMEM;
 	return 0;
@@ -1085,7 +1087,16 @@ KEEP_CONFIG:
 	else
 		host->col_addr_cycles = 1;
 
+	/* release the initial buffer */
+	kfree(info->data_buff);
+
+	/* allocate the real data + oob buffer */
+	info->buf_size = mtd->writesize + mtd->oobsize;
+	ret = pxa3xx_nand_init_buff(info);
+	if (ret)
+		return ret;
 	info->oob_buff = info->data_buff + mtd->writesize;
+
 	if ((mtd->size >> chip->page_shift) > 65536)
 		host->row_addr_cycles = 3;
 	else
@@ -1191,9 +1202,13 @@ static int alloc_nand_resource(struct platform_device *pdev)
 	}
 	info->mmio_phys = r->start;
 
-	ret = pxa3xx_nand_init_buff(info);
-	if (ret)
+	/* Allocate a buffer to allow flash detection */
+	info->buf_size = INIT_BUFFER_SIZE;
+	info->data_buff = kmalloc(info->buf_size, GFP_KERNEL);
+	if (info->data_buff == NULL) {
+		ret = -ENOMEM;
 		goto fail_disable_clk;
+	}
 
 	/* initialize all interrupts to be disabled */
 	disable_int(info, NDSR_MASK);
@@ -1211,7 +1226,7 @@ static int alloc_nand_resource(struct platform_device *pdev)
 
 fail_free_buf:
 	free_irq(irq, info);
-	pxa3xx_nand_free_buff(info);
+	kfree(info->data_buff);
 fail_disable_clk:
 	clk_disable_unprepare(info->clk);
 	return ret;
-- 
cgit 


From 4355b70cf48363c50a9de450b01178c83aba8f6a Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Tue, 27 Aug 2013 18:45:10 -0700
Subject: mtd: nand: hack ONFI for non-power-of-2 dimensions

Some bright specification writers decided to write this in the ONFI spec
(from ONFI 3.0, Section 3.1):

  "The number of blocks and number of pages per block is not required to
  be a power of two. In the case where one of these values is not a
  power of two, the corresponding address shall be rounded to an
  integral number of bits such that it addresses a range up to the
  subsequent power of two value. The host shall not access upper
  addresses in a range that is shown as not supported."

This breaks every assumption MTD makes about NAND block/chip-size
dimensions -- they *must* be a power of two!

And of course, an enterprising manufacturer has made use of this lovely
freedom. Exhibit A: Micron MT29F32G08CBADAWP

  "- Plane size: 2 planes x 1064 blocks per plane
   - Device size: 32Gb: 2128 blockss [sic]"

This quickly hits a BUG() in nand_base.c, since the extra dimensions
overflow so we think it's a second chip (on my single-chip setup):

    ONFI param page 0 valid
    ONFI flash detected
    NAND device: Manufacturer ID: 0x2c, Chip ID: 0x44 (Micron MT29F32G08CBADAWP), 4256MiB, page size: 8192, OOB size: 744
    ------------[ cut here ]------------
    kernel BUG at drivers/mtd/nand/nand_base.c:203!
    Internal error: Oops - BUG: 0 [#1] SMP ARM
    [... trim ...]
    [<c02cf3e4>] (nand_select_chip+0x18/0x2c) from [<c02d25c0>] (nand_do_read_ops+0x90/0x424)
    [<c02d25c0>] (nand_do_read_ops+0x90/0x424) from [<c02d2dd8>] (nand_read+0x54/0x78)
    [<c02d2dd8>] (nand_read+0x54/0x78) from [<c02ad2c8>] (mtd_read+0x84/0xbc)
    [<c02ad2c8>] (mtd_read+0x84/0xbc) from [<c02d4b28>] (scan_read.clone.4+0x4c/0x64)
    [<c02d4b28>] (scan_read.clone.4+0x4c/0x64) from [<c02d4c88>] (search_bbt+0x148/0x290)
    [<c02d4c88>] (search_bbt+0x148/0x290) from [<c02d4ea4>] (nand_scan_bbt+0xd4/0x5c0)
    [... trim ...]
    ---[ end trace 0c9363860d865ff2 ]---

So to fix this, just truncate these dimensions down to the greatest
power-of-2 dimension that is less than or equal to the specified
dimension.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: <stable@vger.kernel.org>
---
 drivers/mtd/nand/nand_base.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 848884473229..ec1db1e19c05 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2987,10 +2987,21 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
 	sanitize_string(p->model, sizeof(p->model));
 	if (!mtd->name)
 		mtd->name = p->model;
+
 	mtd->writesize = le32_to_cpu(p->byte_per_page);
-	mtd->erasesize = le32_to_cpu(p->pages_per_block) * mtd->writesize;
+
+	/*
+	 * pages_per_block and blocks_per_lun may not be a power-of-2 size
+	 * (don't ask me who thought of this...). MTD assumes that these
+	 * dimensions will be power-of-2, so just truncate the remaining area.
+	 */
+	mtd->erasesize = 1 << (fls(le32_to_cpu(p->pages_per_block)) - 1);
+	mtd->erasesize *= mtd->writesize;
+
 	mtd->oobsize = le16_to_cpu(p->spare_bytes_per_page);
-	chip->chipsize = le32_to_cpu(p->blocks_per_lun);
+
+	/* See erasesize comment */
+	chip->chipsize = 1 << (fls(le32_to_cpu(p->blocks_per_lun)) - 1);
 	chip->chipsize *= (uint64_t)mtd->erasesize * p->lun_count;
 	chip->bits_per_cell = p->bits_per_cell;
 
-- 
cgit 


From 98a7c7475d2381febb05d139b5db6f49eeda4427 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 11 Oct 2013 10:11:23 +0530
Subject: mtd: plat-ram: Use module_platform_driver

module_platform_driver simplifies the code by removing boiler
plate.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/maps/plat-ram.c | 16 +---------------
 1 file changed, 1 insertion(+), 15 deletions(-)

diff --git a/drivers/mtd/maps/plat-ram.c b/drivers/mtd/maps/plat-ram.c
index 3e35b9a330c7..10196f5a897d 100644
--- a/drivers/mtd/maps/plat-ram.c
+++ b/drivers/mtd/maps/plat-ram.c
@@ -257,21 +257,7 @@ static struct platform_driver platram_driver = {
 	},
 };
 
-/* module init/exit */
-
-static int __init platram_init(void)
-{
-	printk("Generic platform RAM MTD, (c) 2004 Simtec Electronics\n");
-	return platform_driver_register(&platram_driver);
-}
-
-static void __exit platram_exit(void)
-{
-	platform_driver_unregister(&platram_driver);
-}
-
-module_init(platram_init);
-module_exit(platram_exit);
+module_platform_driver(platram_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
-- 
cgit 


From 994bbd0e91c0dfa4dcda9097b0716607aeec5470 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 11 Oct 2013 10:11:24 +0530
Subject: mtd: bcm47xxnflash: Use module_platform_driver

module_platform_driver simplifies the code by removing boiler plate.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/bcm47xxnflash/main.c | 20 +-------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/drivers/mtd/nand/bcm47xxnflash/main.c b/drivers/mtd/nand/bcm47xxnflash/main.c
index 7bae569fdc79..2dc3aa632f6c 100644
--- a/drivers/mtd/nand/bcm47xxnflash/main.c
+++ b/drivers/mtd/nand/bcm47xxnflash/main.c
@@ -85,22 +85,4 @@ static struct platform_driver bcm47xxnflash_driver = {
 	},
 };
 
-static int __init bcm47xxnflash_init(void)
-{
-	int err;
-
-	err = platform_driver_register(&bcm47xxnflash_driver);
-	if (err)
-		pr_err("Failed to register bcm47xx nand flash driver: %d\n",
-		       err);
-
-	return err;
-}
-
-static void __exit bcm47xxnflash_exit(void)
-{
-	platform_driver_unregister(&bcm47xxnflash_driver);
-}
-
-module_init(bcm47xxnflash_init);
-module_exit(bcm47xxnflash_exit);
+module_platform_driver(bcm47xxnflash_driver);
-- 
cgit 


From 7e3019e364f1b6b9ce123e747addcdc96e8d74ae Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 11 Oct 2013 10:11:25 +0530
Subject: mtd: bcm47xxnflash: Use devm_kzalloc

devm_kzalloc is device managed and simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/bcm47xxnflash/main.c | 18 +++++-------------
 1 file changed, 5 insertions(+), 13 deletions(-)

diff --git a/drivers/mtd/nand/bcm47xxnflash/main.c b/drivers/mtd/nand/bcm47xxnflash/main.c
index 2dc3aa632f6c..107445911315 100644
--- a/drivers/mtd/nand/bcm47xxnflash/main.c
+++ b/drivers/mtd/nand/bcm47xxnflash/main.c
@@ -29,11 +29,9 @@ static int bcm47xxnflash_probe(struct platform_device *pdev)
 	struct bcm47xxnflash *b47n;
 	int err = 0;
 
-	b47n = kzalloc(sizeof(*b47n), GFP_KERNEL);
-	if (!b47n) {
-		err = -ENOMEM;
-		goto out;
-	}
+	b47n = devm_kzalloc(&pdev->dev, sizeof(*b47n), GFP_KERNEL);
+	if (!b47n)
+		return -ENOMEM;
 
 	b47n->nand_chip.priv = b47n;
 	b47n->mtd.owner = THIS_MODULE;
@@ -48,22 +46,16 @@ static int bcm47xxnflash_probe(struct platform_device *pdev)
 	}
 	if (err) {
 		pr_err("Initialization failed: %d\n", err);
-		goto err_init;
+		return err;
 	}
 
 	err = mtd_device_parse_register(&b47n->mtd, probes, NULL, NULL, 0);
 	if (err) {
 		pr_err("Failed to register MTD device: %d\n", err);
-		goto err_dev_reg;
+		return err;
 	}
 
 	return 0;
-
-err_dev_reg:
-err_init:
-	kfree(b47n);
-out:
-	return err;
 }
 
 static int bcm47xxnflash_remove(struct platform_device *pdev)
-- 
cgit 


From 99b1d1887fee36ef9ff5d2ee24f0cf3e8c172104 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sun, 13 Oct 2013 22:53:49 +0200
Subject: mtd: bcm47xxpart: handle malloc failures

Handle return NULL in malloc.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/bcm47xxpart.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/mtd/bcm47xxpart.c b/drivers/mtd/bcm47xxpart.c
index 9279a9174f84..6d427468c4cd 100644
--- a/drivers/mtd/bcm47xxpart.c
+++ b/drivers/mtd/bcm47xxpart.c
@@ -71,7 +71,14 @@ static int bcm47xxpart_parse(struct mtd_info *master,
 	/* Alloc */
 	parts = kzalloc(sizeof(struct mtd_partition) * BCM47XXPART_MAX_PARTS,
 			GFP_KERNEL);
+	if (!parts)
+		return -ENOMEM;
+
 	buf = kzalloc(BCM47XXPART_BYTES_TO_READ, GFP_KERNEL);
+	if (!buf) {
+		kfree(parts);
+		return -ENOMEM;
+	}
 
 	/* Parse block by block looking for magics */
 	for (offset = 0; offset <= master->size - blocksize;
-- 
cgit 


From 020c6bcfbeabee72c18d862769d72cf9241b9004 Mon Sep 17 00:00:00 2001
From: Rafał Miłecki <zajec5@gmail.com>
Date: Mon, 21 Oct 2013 22:34:37 +0200
Subject: mtd: bcm47xxpart: detect block aligned Squashfs partition
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Most of the bcm47xx devices use TRX format for storing kernel and some
partition like Squashfs or JFFS2. This is pretty flexible solution, CFE
(the bootloader) just writes (and later boots) TRX at some hardcoded
place and paritions can vary in the size.

However some devices don't use TRX format. Very recently we have
discovered ZTE H218N that has kernel and rootfs partitions at some
"random" places.

This patch allows Linux find a rootfs partition after installing custom
image with a CFE bootloader.

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/bcm47xxpart.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/mtd/bcm47xxpart.c b/drivers/mtd/bcm47xxpart.c
index 6d427468c4cd..a737450826ec 100644
--- a/drivers/mtd/bcm47xxpart.c
+++ b/drivers/mtd/bcm47xxpart.c
@@ -32,6 +32,7 @@
 #define ML_MAGIC1			0x39685a42
 #define ML_MAGIC2			0x26594131
 #define TRX_MAGIC			0x30524448
+#define SQSH_MAGIC			0x71736873	/* shsq */
 
 struct trx_header {
 	uint32_t magic;
@@ -174,6 +175,13 @@ static int bcm47xxpart_parse(struct mtd_info *master,
 			offset = rounddown(offset + trx->length, blocksize);
 			continue;
 		}
+
+		/* Squashfs on devices not using TRX */
+		if (buf[0x000 / 4] == SQSH_MAGIC) {
+			bcm47xxpart_add_part(&parts[curr_part++], "rootfs",
+					     offset, 0);
+			continue;
+		}
 	}
 
 	/* Look for NVRAM at the end of the last block. */
-- 
cgit 


From 33094c736cd36a6cecadae6bce4daba89dabc326 Mon Sep 17 00:00:00 2001
From: Rafał Miłecki <zajec5@gmail.com>
Date: Mon, 21 Oct 2013 22:35:34 +0200
Subject: mtd: bcm47xxpart: detect "factory" partition
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

A new type of partition with magic FCTY was found on Huawei E970:
46 43 54 59 4b 51 37 4e  41 42 31 38 41 32 39 30  |FCTYKQ7NAB18A290|

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/bcm47xxpart.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/mtd/bcm47xxpart.c b/drivers/mtd/bcm47xxpart.c
index a737450826ec..7a6384b0962a 100644
--- a/drivers/mtd/bcm47xxpart.c
+++ b/drivers/mtd/bcm47xxpart.c
@@ -27,6 +27,7 @@
 
 /* Magics */
 #define BOARD_DATA_MAGIC		0x5246504D	/* MPFR */
+#define FACTORY_MAGIC			0x59544346	/* FCTY */
 #define POT_MAGIC1			0x54544f50	/* POTT */
 #define POT_MAGIC2			0x504f		/* OP */
 #define ML_MAGIC1			0x39685a42
@@ -118,6 +119,13 @@ static int bcm47xxpart_parse(struct mtd_info *master,
 			continue;
 		}
 
+		/* Found on Huawei E970 */
+		if (buf[0x000 / 4] == FACTORY_MAGIC) {
+			bcm47xxpart_add_part(&parts[curr_part++], "factory",
+					     offset, MTD_WRITEABLE);
+			continue;
+		}
+
 		/* POT(TOP) */
 		if (buf[0x000 / 4] == POT_MAGIC1 &&
 		    (buf[0x004 / 4] & 0xFFFF) == POT_MAGIC2) {
-- 
cgit 


From f83c3838b9146b891d0405d3a83660e8f6aed02f Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Sun, 13 Oct 2013 18:05:23 -0300
Subject: mtd: Move major number definitions to major.h

This patch moves the char and block major number definitions
to major.h to be with the rest of the major numbers.
While doing this, include major.h in the files that need it.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/devices/block2mtd.c | 1 +
 drivers/mtd/mtdblock.c          | 1 +
 drivers/mtd/mtdblock_ro.c       | 1 +
 drivers/mtd/mtdchar.c           | 1 +
 drivers/mtd/mtdcore.c           | 1 +
 drivers/mtd/mtdsuper.c          | 1 +
 drivers/mtd/ubi/build.c         | 1 +
 include/linux/mtd/mtd.h         | 3 ---
 include/uapi/linux/major.h      | 2 ++
 9 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c
index 5cb4c04726b2..d9fd87a4c8dc 100644
--- a/drivers/mtd/devices/block2mtd.c
+++ b/drivers/mtd/devices/block2mtd.c
@@ -20,6 +20,7 @@
 #include <linux/mutex.h>
 #include <linux/mount.h>
 #include <linux/slab.h>
+#include <linux/major.h>
 
 /* Info for the block device */
 struct block2mtd_dev {
diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c
index 53884cc25916..485ea751c7f9 100644
--- a/drivers/mtd/mtdblock.c
+++ b/drivers/mtd/mtdblock.c
@@ -32,6 +32,7 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/blktrans.h>
 #include <linux/mutex.h>
+#include <linux/major.h>
 
 
 struct mtdblk_dev {
diff --git a/drivers/mtd/mtdblock_ro.c b/drivers/mtd/mtdblock_ro.c
index 70d27b4d632b..fb5dc89369de 100644
--- a/drivers/mtd/mtdblock_ro.c
+++ b/drivers/mtd/mtdblock_ro.c
@@ -24,6 +24,7 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/blktrans.h>
 #include <linux/module.h>
+#include <linux/major.h>
 
 static int mtdblock_readsect(struct mtd_blktrans_dev *dev,
 			      unsigned long block, char *buf)
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 684bfa39e4ee..9aa0c5e49c1d 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -32,6 +32,7 @@
 #include <linux/mount.h>
 #include <linux/blkpg.h>
 #include <linux/magic.h>
+#include <linux/major.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/map.h>
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 92311a56939f..7189089d87e3 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -37,6 +37,7 @@
 #include <linux/backing-dev.h>
 #include <linux/gfp.h>
 #include <linux/slab.h>
+#include <linux/major.h>
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
diff --git a/drivers/mtd/mtdsuper.c b/drivers/mtd/mtdsuper.c
index 334da5f583c0..20c02a3b7417 100644
--- a/drivers/mtd/mtdsuper.c
+++ b/drivers/mtd/mtdsuper.c
@@ -17,6 +17,7 @@
 #include <linux/export.h>
 #include <linux/ctype.h>
 #include <linux/slab.h>
+#include <linux/major.h>
 
 /*
  * compare superblocks to see if they're equivalent
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index 315dcc6ec1f5..e05dc6298c1d 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -41,6 +41,7 @@
 #include <linux/kthread.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
+#include <linux/major.h>
 #include "ubi.h"
 
 /* Maximum length of the 'mtd=' parameter */
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 88409b813418..8cc0e2fb6894 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -29,9 +29,6 @@
 
 #include <asm/div64.h>
 
-#define MTD_CHAR_MAJOR 90
-#define MTD_BLOCK_MAJOR 31
-
 #define MTD_ERASE_PENDING	0x01
 #define MTD_ERASING		0x02
 #define MTD_ERASE_SUSPEND	0x04
diff --git a/include/uapi/linux/major.h b/include/uapi/linux/major.h
index 6a8ca98c9a96..620252e69b44 100644
--- a/include/uapi/linux/major.h
+++ b/include/uapi/linux/major.h
@@ -54,6 +54,7 @@
 #define ACSI_MAJOR		28
 #define AZTECH_CDROM_MAJOR	29
 #define FB_MAJOR		29   /* /dev/fb* framebuffers */
+#define MTD_BLOCK_MAJOR		31
 #define CM206_CDROM_MAJOR	32
 #define IDE2_MAJOR		33
 #define IDE3_MAJOR		34
@@ -105,6 +106,7 @@
 #define IDE6_MAJOR		88
 #define IDE7_MAJOR		89
 #define IDE8_MAJOR		90
+#define MTD_CHAR_MAJOR		90
 #define IDE9_MAJOR		91
 
 #define DASD_MAJOR		94
-- 
cgit 


From a4d62babf988fe5dfde24437fa135ef147bc7aa0 Mon Sep 17 00:00:00 2001
From: Wang Haitao <wang.haitao1@zte.com.cn>
Date: Thu, 22 Aug 2013 19:32:38 +0800
Subject: mtd: map: fixed bug in 64-bit systems

Hardware:
	CPU: XLP832,the 64-bit OS
	NOR Flash:S29GL128S 128M
Software:
	Kernel:2.6.32.41
	Filesystem:JFFS2
When writing files, errors appear:
	Write len 182  but return retlen 180
	Write of 182 bytes at 0x072c815c failed. returned -5, retlen 180
	Write len 186  but return retlen 184
	Write of 186 bytes at 0x072caff4 failed. returned -5, retlen 184
These errors exist only in 64-bit systems,not in 32-bit systems. After analysis, we
found that the left shift operation is wrong in map_word_load_partial. For instance:
	unsigned char buf[3] ={0x9e,0x3a,0xea};
	map_bankwidth(map) is 4;
	for (i=0; i < 3; i++) {
		int bitpos;
		bitpos = (map_bankwidth(map)-1-i)*8;
		orig.x[0] &= ~(0xff << bitpos);
		orig.x[0] |= buf[i] << bitpos;
	}

The value of orig.x[0] is expected to be 0x9e3aeaff, but in this situation(64-bit
System) we'll get the wrong value of 0xffffffff9e3aeaff due to the 64-bit sign
extension:
buf[i] is defined as "unsigned char" and the left-shift operation will convert it
to the type of "signed int", so when left-shift buf[i] by 24 bits, the final result
will get the wrong value: 0xffffffff9e3aeaff.

If the left-shift bits are less than 24, then sign extension will not occur. Whereas
the bankwidth of the nor flash we used is 4, therefore this BUG emerges.

Signed-off-by: Pang Xunlei <pang.xunlei@zte.com.cn>
Signed-off-by: Zhang Yi <zhang.yi20@zte.com.cn>
Signed-off-by: Lu Zhongjun <lu.zhongjun@zte.com.cn>
Cc: <stable@vger.kernel.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 include/linux/mtd/map.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h
index 4b02512e421c..5f487d776411 100644
--- a/include/linux/mtd/map.h
+++ b/include/linux/mtd/map.h
@@ -365,7 +365,7 @@ static inline map_word map_word_load_partial(struct map_info *map, map_word orig
 			bitpos = (map_bankwidth(map)-1-i)*8;
 #endif
 			orig.x[0] &= ~(0xff << bitpos);
-			orig.x[0] |= buf[i-start] << bitpos;
+			orig.x[0] |= (unsigned long)buf[i-start] << bitpos;
 		}
 	}
 	return orig;
@@ -384,7 +384,7 @@ static inline map_word map_word_ff(struct map_info *map)
 
 	if (map_bankwidth(map) < MAP_FF_LIMIT) {
 		int bw = 8 * map_bankwidth(map);
-		r.x[0] = (1 << bw) - 1;
+		r.x[0] = (1UL << bw) - 1;
 	} else {
 		for (i=0; i<map_words(map); i++)
 			r.x[i] = ~0UL;
-- 
cgit 


From ebff90b288c347f3af1b3d164c258aeb2bed60ec Mon Sep 17 00:00:00 2001
From: Prabhakar Kushwaha <prabhakar@freescale.com>
Date: Tue, 24 Sep 2013 16:41:23 +0530
Subject: driver/mtd/IFC: Add support of 8K page size NAND flash

Current IFC driver supports till 4K page size NAND flash.
Add support of 8K Page size NAND flash
  - Add nand_ecclayout for 4 bit & 8 bit ecc
  - Defines constants
  - also fix ecc.strength for 8bit ecc of 8K page size NAND

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 arch/powerpc/include/asm/fsl_ifc.h |  2 +
 drivers/mtd/nand/fsl_ifc_nand.c    | 77 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 79 insertions(+)

diff --git a/arch/powerpc/include/asm/fsl_ifc.h b/arch/powerpc/include/asm/fsl_ifc.h
index b8a4b9bc50b3..f49ddb1b2273 100644
--- a/arch/powerpc/include/asm/fsl_ifc.h
+++ b/arch/powerpc/include/asm/fsl_ifc.h
@@ -93,6 +93,7 @@
 #define CSOR_NAND_PGS_512		0x00000000
 #define CSOR_NAND_PGS_2K		0x00080000
 #define CSOR_NAND_PGS_4K		0x00100000
+#define CSOR_NAND_PGS_8K		0x00180000
 /* Spare region Size */
 #define CSOR_NAND_SPRZ_MASK		0x0000E000
 #define CSOR_NAND_SPRZ_SHIFT		13
@@ -102,6 +103,7 @@
 #define CSOR_NAND_SPRZ_210		0x00006000
 #define CSOR_NAND_SPRZ_218		0x00008000
 #define CSOR_NAND_SPRZ_224		0x0000A000
+#define CSOR_NAND_SPRZ_CSOR_EXT		0x0000C000
 /* Pages Per Block */
 #define CSOR_NAND_PB_MASK		0x00000700
 #define CSOR_NAND_PB_SHIFT		8
diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index 1c173d91cbea..9d1cf005878f 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -135,6 +135,69 @@ static struct nand_ecclayout oob_4096_ecc8 = {
 	.oobfree = { {2, 6}, {136, 82} },
 };
 
+/* 8192-byte page size with 4-bit ECC */
+static struct nand_ecclayout oob_8192_ecc4 = {
+	.eccbytes = 128,
+	.eccpos = {
+		8, 9, 10, 11, 12, 13, 14, 15,
+		16, 17, 18, 19, 20, 21, 22, 23,
+		24, 25, 26, 27, 28, 29, 30, 31,
+		32, 33, 34, 35, 36, 37, 38, 39,
+		40, 41, 42, 43, 44, 45, 46, 47,
+		48, 49, 50, 51, 52, 53, 54, 55,
+		56, 57, 58, 59, 60, 61, 62, 63,
+		64, 65, 66, 67, 68, 69, 70, 71,
+		72, 73, 74, 75, 76, 77, 78, 79,
+		80, 81, 82, 83, 84, 85, 86, 87,
+		88, 89, 90, 91, 92, 93, 94, 95,
+		96, 97, 98, 99, 100, 101, 102, 103,
+		104, 105, 106, 107, 108, 109, 110, 111,
+		112, 113, 114, 115, 116, 117, 118, 119,
+		120, 121, 122, 123, 124, 125, 126, 127,
+		128, 129, 130, 131, 132, 133, 134, 135,
+	},
+	.oobfree = { {2, 6}, {136, 208} },
+};
+
+/* 8192-byte page size with 8-bit ECC -- requires 218-byte OOB */
+static struct nand_ecclayout oob_8192_ecc8 = {
+	.eccbytes = 256,
+	.eccpos = {
+		8, 9, 10, 11, 12, 13, 14, 15,
+		16, 17, 18, 19, 20, 21, 22, 23,
+		24, 25, 26, 27, 28, 29, 30, 31,
+		32, 33, 34, 35, 36, 37, 38, 39,
+		40, 41, 42, 43, 44, 45, 46, 47,
+		48, 49, 50, 51, 52, 53, 54, 55,
+		56, 57, 58, 59, 60, 61, 62, 63,
+		64, 65, 66, 67, 68, 69, 70, 71,
+		72, 73, 74, 75, 76, 77, 78, 79,
+		80, 81, 82, 83, 84, 85, 86, 87,
+		88, 89, 90, 91, 92, 93, 94, 95,
+		96, 97, 98, 99, 100, 101, 102, 103,
+		104, 105, 106, 107, 108, 109, 110, 111,
+		112, 113, 114, 115, 116, 117, 118, 119,
+		120, 121, 122, 123, 124, 125, 126, 127,
+		128, 129, 130, 131, 132, 133, 134, 135,
+		136, 137, 138, 139, 140, 141, 142, 143,
+		144, 145, 146, 147, 148, 149, 150, 151,
+		152, 153, 154, 155, 156, 157, 158, 159,
+		160, 161, 162, 163, 164, 165, 166, 167,
+		168, 169, 170, 171, 172, 173, 174, 175,
+		176, 177, 178, 179, 180, 181, 182, 183,
+		184, 185, 186, 187, 188, 189, 190, 191,
+		192, 193, 194, 195, 196, 197, 198, 199,
+		200, 201, 202, 203, 204, 205, 206, 207,
+		208, 209, 210, 211, 212, 213, 214, 215,
+		216, 217, 218, 219, 220, 221, 222, 223,
+		224, 225, 226, 227, 228, 229, 230, 231,
+		232, 233, 234, 235, 236, 237, 238, 239,
+		240, 241, 242, 243, 244, 245, 246, 247,
+		248, 249, 250, 251, 252, 253, 254, 255,
+		256, 257, 258, 259, 260, 261, 262, 263,
+	},
+	.oobfree = { {2, 6}, {264, 80} },
+};
 
 /*
  * Generic flash bbt descriptors
@@ -870,11 +933,25 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
 		} else {
 			layout = &oob_4096_ecc8;
 			chip->ecc.bytes = 16;
+			chip->ecc.strength = 8;
 		}
 
 		priv->bufnum_mask = 1;
 		break;
 
+	case CSOR_NAND_PGS_8K:
+		if ((csor & CSOR_NAND_ECC_MODE_MASK) ==
+		    CSOR_NAND_ECC_MODE_4) {
+			layout = &oob_8192_ecc4;
+		} else {
+			layout = &oob_8192_ecc8;
+			chip->ecc.bytes = 16;
+			chip->ecc.strength = 8;
+		}
+
+		priv->bufnum_mask = 0;
+	break;
+
 	default:
 		dev_err(priv->dev, "bad csor %#x: bad page size\n", csor);
 		return -ENODEV;
-- 
cgit 


From 4af9874916b14db407bee18590fe1847f541c2e2 Mon Sep 17 00:00:00 2001
From: Prabhakar Kushwaha <prabhakar@freescale.com>
Date: Thu, 3 Oct 2013 11:36:41 +0530
Subject: driver/mtd/ifc: Read Status while programming NAND flash

as per controller description,
  "While programming a NAND flash, status read should never skipped.
   Because it may happen that a new command is issued to the NAND Flash,
   even when the device has not yet finished processing the previous request.
   This may result in unpredictable behaviour."

IFC controller never polls for R/B signal after command send. It just return
control to software. This behaviour may not occur with NAND flash access.
because new commands are sent after polling R/B signal. But it may happen
in scenario where GPCM-ASIC and NAND flash device are working simultaneously.

Update the controller driver to take care of this requirement

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/fsl_ifc_nand.c | 34 ++++++++++++++++++++++++----------
 1 file changed, 24 insertions(+), 10 deletions(-)

diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c
index 9d1cf005878f..c96e1e0943f5 100644
--- a/drivers/mtd/nand/fsl_ifc_nand.c
+++ b/drivers/mtd/nand/fsl_ifc_nand.c
@@ -504,20 +504,29 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
 		if (mtd->writesize > 512) {
 			nand_fcr0 =
 				(NAND_CMD_SEQIN << IFC_NAND_FCR0_CMD0_SHIFT) |
-				(NAND_CMD_PAGEPROG << IFC_NAND_FCR0_CMD1_SHIFT);
+				(NAND_CMD_STATUS << IFC_NAND_FCR0_CMD1_SHIFT) |
+				(NAND_CMD_PAGEPROG << IFC_NAND_FCR0_CMD2_SHIFT);
 
 			iowrite32be(
-				(IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
-				(IFC_FIR_OP_CA0 << IFC_NAND_FIR0_OP1_SHIFT) |
-				(IFC_FIR_OP_RA0 << IFC_NAND_FIR0_OP2_SHIFT) |
-				(IFC_FIR_OP_WBCD << IFC_NAND_FIR0_OP3_SHIFT) |
-				(IFC_FIR_OP_CW1 << IFC_NAND_FIR0_OP4_SHIFT),
-				&ifc->ifc_nand.nand_fir0);
+				 (IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
+				 (IFC_FIR_OP_CA0 << IFC_NAND_FIR0_OP1_SHIFT) |
+				 (IFC_FIR_OP_RA0 << IFC_NAND_FIR0_OP2_SHIFT) |
+				 (IFC_FIR_OP_WBCD  << IFC_NAND_FIR0_OP3_SHIFT) |
+				 (IFC_FIR_OP_CMD2 << IFC_NAND_FIR0_OP4_SHIFT),
+				 &ifc->ifc_nand.nand_fir0);
+			iowrite32be(
+				 (IFC_FIR_OP_CW1 << IFC_NAND_FIR1_OP5_SHIFT) |
+				 (IFC_FIR_OP_RDSTAT <<
+					IFC_NAND_FIR1_OP6_SHIFT) |
+				 (IFC_FIR_OP_NOP << IFC_NAND_FIR1_OP7_SHIFT),
+				 &ifc->ifc_nand.nand_fir1);
 		} else {
 			nand_fcr0 = ((NAND_CMD_PAGEPROG <<
 					IFC_NAND_FCR0_CMD1_SHIFT) |
 				    (NAND_CMD_SEQIN <<
-					IFC_NAND_FCR0_CMD2_SHIFT));
+					IFC_NAND_FCR0_CMD2_SHIFT) |
+				    (NAND_CMD_STATUS <<
+					IFC_NAND_FCR0_CMD3_SHIFT));
 
 			iowrite32be(
 				(IFC_FIR_OP_CW0 << IFC_NAND_FIR0_OP0_SHIFT) |
@@ -526,8 +535,13 @@ static void fsl_ifc_cmdfunc(struct mtd_info *mtd, unsigned int command,
 				(IFC_FIR_OP_RA0 << IFC_NAND_FIR0_OP3_SHIFT) |
 				(IFC_FIR_OP_WBCD << IFC_NAND_FIR0_OP4_SHIFT),
 				&ifc->ifc_nand.nand_fir0);
-			iowrite32be(IFC_FIR_OP_CW1 << IFC_NAND_FIR1_OP5_SHIFT,
-				    &ifc->ifc_nand.nand_fir1);
+			iowrite32be(
+				 (IFC_FIR_OP_CMD1 << IFC_NAND_FIR1_OP5_SHIFT) |
+				 (IFC_FIR_OP_CW3 << IFC_NAND_FIR1_OP6_SHIFT) |
+				 (IFC_FIR_OP_RDSTAT <<
+					IFC_NAND_FIR1_OP7_SHIFT) |
+				 (IFC_FIR_OP_NOP << IFC_NAND_FIR1_OP8_SHIFT),
+				  &ifc->ifc_nand.nand_fir1);
 
 			if (column >= mtd->writesize)
 				nand_fcr0 |=
-- 
cgit 


From d159d8b7074181b154643aa15347d65a36b7ab59 Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Tue, 27 Aug 2013 17:29:04 +0800
Subject: mtd: gpmi: decouple the chip select from the DMA channel

Decouple the chip select from the DMA channel, we use the DMA channel 0
to accecc all the nand devices.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/gpmi-nand/gpmi-lib.c  | 6 ++++++
 drivers/mtd/nand/gpmi-nand/gpmi-regs.h | 3 +++
 2 files changed, 9 insertions(+)

diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
index 4f8857fa48a7..7d56d87599c0 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
@@ -187,6 +187,12 @@ int gpmi_init(struct gpmi_nand_data *this)
 	/* Select BCH ECC. */
 	writel(BM_GPMI_CTRL1_BCH_MODE, r->gpmi_regs + HW_GPMI_CTRL1_SET);
 
+	/*
+	 * Decouple the chip select from dma channel. We use dma0 for all
+	 * the chips.
+	 */
+	writel(BM_GPMI_CTRL1_DECOUPLE_CS, r->gpmi_regs + HW_GPMI_CTRL1_SET);
+
 	gpmi_disable_clk(this);
 	return 0;
 err_out:
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-regs.h b/drivers/mtd/nand/gpmi-nand/gpmi-regs.h
index 53397cc290fc..82114cdc8330 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-regs.h
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-regs.h
@@ -108,6 +108,9 @@
 #define HW_GPMI_CTRL1_CLR				0x00000068
 #define HW_GPMI_CTRL1_TOG				0x0000006c
 
+#define BP_GPMI_CTRL1_DECOUPLE_CS			24
+#define BM_GPMI_CTRL1_DECOUPLE_CS	(1 << BP_GPMI_CTRL1_DECOUPLE_CS)
+
 #define BP_GPMI_CTRL1_WRN_DLY_SEL			22
 #define BM_GPMI_CTRL1_WRN_DLY_SEL	(0x3 << BP_GPMI_CTRL1_WRN_DLY_SEL)
 #define BF_GPMI_CTRL1_WRN_DLY_SEL(v)  \
-- 
cgit 


From a7c12d016aa50762e4816308f46e2572ff9b5a01 Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Tue, 27 Aug 2013 17:29:05 +0800
Subject: mtd: gpmi: use DMA channel 0 for all the nand chips

We only have one DMA channel : the channel 0.
Use DMA channel 0 to access all the nand chips.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 37508eb350d0..a5c60c4a62b5 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -357,9 +357,8 @@ int common_nfc_set_geometry(struct gpmi_nand_data *this)
 
 struct dma_chan *get_dma_chan(struct gpmi_nand_data *this)
 {
-	int chipnr = this->current_chip;
-
-	return this->dma_chans[chipnr];
+	/* We use the DMA channel 0 to access all the nand chips. */
+	return this->dma_chans[0];
 }
 
 /* Can we use the upper's buffer directly for DMA? */
-- 
cgit 


From a5370e9ed567e68ac261b28a242832eb09fe8559 Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Tue, 27 Aug 2013 17:29:06 +0800
Subject: mtd: gpmi: scan two nand chips

Some nand chip has two DIEs in a single chip, such as Micron MT29F32G08QAA.
Each die has its own chip select pin, so this chip acts as two nand
chips.

If we only scan one chip, we may find that we only get 2G for this chip,
but in actually, this chip's size is 4G.

So scan two chips by default.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index a5c60c4a62b5..7ac22802e4dc 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -1674,7 +1674,7 @@ static int gpmi_nfc_init(struct gpmi_nand_data *this)
 	if (ret)
 		goto err_out;
 
-	ret = nand_scan_ident(mtd, 1, NULL);
+	ret = nand_scan_ident(mtd, 2, NULL);
 	if (ret)
 		goto err_out;
 
-- 
cgit 


From 7caa4fd29068cccaa7be20914af6d23f261be3eb Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Tue, 27 Aug 2013 17:29:07 +0800
Subject: mtd: gpmi: imx6: fix the wrong method for checking ready/busy

In the imx6, all the ready/busy pins are binding togeter.
So we should always check the ready/busy pin of the chip 0.

In the other word, when the CS1 is enabled, we should also check the
ready/busy of chip 0; if we check the ready/busy of chip 1,
we will get the wrong result.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/gpmi-nand/gpmi-lib.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
index 7d56d87599c0..aaced29727fb 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
@@ -1079,6 +1079,13 @@ int gpmi_is_ready(struct gpmi_nand_data *this, unsigned chip)
 		mask = MX23_BM_GPMI_DEBUG_READY0 << chip;
 		reg = readl(r->gpmi_regs + HW_GPMI_DEBUG);
 	} else if (GPMI_IS_MX28(this) || GPMI_IS_MX6Q(this)) {
+		/*
+		 * In the imx6, all the ready/busy pins are bound
+		 * together. So we only need to check chip 0.
+		 */
+		if (GPMI_IS_MX6Q(this))
+			chip = 0;
+
 		/* MX28 shares the same R/B register as MX6Q. */
 		mask = MX28_BF_GPMI_STAT_READY_BUSY(1 << chip);
 		reg = readl(r->gpmi_regs + HW_GPMI_STAT);
-- 
cgit 


From 778d226a1462572b51d6777cdb1d611543410cb4 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Wed, 24 Jul 2013 18:32:07 -0700
Subject: mtd: m25p80: fix allocation size

This patch fixes two memory errors:

1. During a probe failure (in mtd_device_parse_register?) the command
   buffer would not be freed.

2. The command buffer's size is determined based on the 'fast_read'
   boolean, but the assignment of fast_read is made after this
   allocation. Thus, the buffer may be allocated "too small".

To fix the first, just switch to the devres version of kzalloc.

To fix the second, increase MAX_CMD_SIZE unconditionally. It's not worth
saving a byte to fiddle around with the conditions here.

This problem was reported by Yuhang Wang a while back.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reported-by: Yuhang Wang <wangyuhang2014@gmail.com>
Reviewed-by: Sourav Poddar <sourav.poddar@ti.com>
Cc: <stable@vger.kernel.org>
---
 drivers/mtd/devices/m25p80.c | 20 +++++++-------------
 1 file changed, 7 insertions(+), 13 deletions(-)

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 8d6c87be9598..63a95ac89f18 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -78,7 +78,7 @@
 
 /* Define max times to check status register before we give up. */
 #define	MAX_READY_WAIT_JIFFIES	(40 * HZ)	/* M25P16 specs 40s max chip erase */
-#define	MAX_CMD_SIZE		5
+#define	MAX_CMD_SIZE		6
 
 #define JEDEC_MFR(_jedec_id)	((_jedec_id) >> 16)
 
@@ -996,15 +996,13 @@ static int m25p_probe(struct spi_device *spi)
 		}
 	}
 
-	flash = kzalloc(sizeof *flash, GFP_KERNEL);
+	flash = devm_kzalloc(&spi->dev, sizeof(*flash), GFP_KERNEL);
 	if (!flash)
 		return -ENOMEM;
-	flash->command = kmalloc(MAX_CMD_SIZE + (flash->fast_read ? 1 : 0),
-					GFP_KERNEL);
-	if (!flash->command) {
-		kfree(flash);
+
+	flash->command = devm_kzalloc(&spi->dev, MAX_CMD_SIZE, GFP_KERNEL);
+	if (!flash->command)
 		return -ENOMEM;
-	}
 
 	flash->spi = spi;
 	mutex_init(&flash->lock);
@@ -1137,14 +1135,10 @@ static int m25p_probe(struct spi_device *spi)
 static int m25p_remove(struct spi_device *spi)
 {
 	struct m25p	*flash = spi_get_drvdata(spi);
-	int		status;
 
 	/* Clean up MTD stuff. */
-	status = mtd_device_unregister(&flash->mtd);
-	if (status == 0) {
-		kfree(flash->command);
-		kfree(flash);
-	}
+	mtd_device_unregister(&flash->mtd);
+
 	return 0;
 }
 
-- 
cgit 


From 1a874e91018ea99d7f012a0824669aa9ed833d6f Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Mon, 29 Jul 2013 23:57:57 -0700
Subject: mtd: m25p80: remove obsolete FIXME

The FIXME and NOTE have already been fixed (we have FAST_READ support).

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Sourav Poddar <sourav.poddar@ti.com>
Acked-by: Marek Vasut <marex@denx.de>
---
 drivers/mtd/devices/m25p80.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 63a95ac89f18..7c4cbad2e981 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -367,10 +367,6 @@ static int m25p80_read(struct mtd_info *mtd, loff_t from, size_t len,
 	spi_message_init(&m);
 	memset(t, 0, (sizeof t));
 
-	/* NOTE:
-	 * OPCODE_FAST_READ (if available) is faster.
-	 * Should add 1 byte DUMMY_BYTE.
-	 */
 	t[0].tx_buf = flash->command;
 	t[0].len = m25p_cmdsz(flash) + (flash->fast_read ? 1 : 0);
 	spi_message_add_tail(&t[0], &m);
@@ -388,11 +384,6 @@ static int m25p80_read(struct mtd_info *mtd, loff_t from, size_t len,
 		return 1;
 	}
 
-	/* FIXME switch to OPCODE_FAST_READ.  It's required for higher
-	 * clocks; and at this writing, every chip this driver handles
-	 * supports that opcode.
-	 */
-
 	/* Set up the write data buffer. */
 	opcode = flash->read_opcode;
 	flash->command[0] = opcode;
-- 
cgit 


From 6e5d9bda27000c682a9b38f0466941007e295f82 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Fri, 9 Aug 2013 19:41:13 -0700
Subject: mtd: m25p80: re-align ID entries

No change in the table data.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Sourav Poddar <sourav.poddar@ti.com>
---
 drivers/mtd/devices/m25p80.c | 32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 7c4cbad2e981..7e3ec7ae727f 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -740,19 +740,19 @@ static const struct spi_device_id m25p_ids[] = {
 	{ "at45db081d", INFO(0x1f2500, 0, 64 * 1024, 16, SECT_4K) },
 
 	/* EON -- en25xxx */
-	{ "en25f32", INFO(0x1c3116, 0, 64 * 1024,  64, SECT_4K) },
-	{ "en25p32", INFO(0x1c2016, 0, 64 * 1024,  64, 0) },
-	{ "en25q32b", INFO(0x1c3016, 0, 64 * 1024,  64, 0) },
-	{ "en25p64", INFO(0x1c2017, 0, 64 * 1024, 128, 0) },
-	{ "en25q64", INFO(0x1c3017, 0, 64 * 1024, 128, SECT_4K) },
-	{ "en25qh256", INFO(0x1c7019, 0, 64 * 1024, 512, 0) },
+	{ "en25f32",    INFO(0x1c3116, 0, 64 * 1024,   64, SECT_4K) },
+	{ "en25p32",    INFO(0x1c2016, 0, 64 * 1024,   64, 0) },
+	{ "en25q32b",   INFO(0x1c3016, 0, 64 * 1024,   64, 0) },
+	{ "en25p64",    INFO(0x1c2017, 0, 64 * 1024,  128, 0) },
+	{ "en25q64",    INFO(0x1c3017, 0, 64 * 1024,  128, SECT_4K) },
+	{ "en25qh256",  INFO(0x1c7019, 0, 64 * 1024,  512, 0) },
 
 	/* ESMT */
 	{ "f25l32pa", INFO(0x8c2016, 0, 64 * 1024, 64, SECT_4K) },
 
 	/* Everspin */
-	{ "mr25h256", CAT25_INFO(  32 * 1024, 1, 256, 2, M25P_NO_ERASE | M25P_NO_FR) },
-	{ "mr25h10", CAT25_INFO(128 * 1024, 1, 256, 3, M25P_NO_ERASE | M25P_NO_FR) },
+	{ "mr25h256", CAT25_INFO( 32 * 1024, 1, 256, 2, M25P_NO_ERASE | M25P_NO_FR) },
+	{ "mr25h10",  CAT25_INFO(128 * 1024, 1, 256, 3, M25P_NO_ERASE | M25P_NO_FR) },
 
 	/* GigaDevice */
 	{ "gd25q32", INFO(0xc84016, 0, 64 * 1024,  64, SECT_4K) },
@@ -777,16 +777,16 @@ static const struct spi_device_id m25p_ids[] = {
 	{ "mx66l51235l", INFO(0xc2201a, 0, 64 * 1024, 1024, 0) },
 
 	/* Micron */
-	{ "n25q064",  INFO(0x20ba17, 0, 64 * 1024, 128, 0) },
-	{ "n25q128a11",  INFO(0x20bb18, 0, 64 * 1024, 256, 0) },
-	{ "n25q128a13",  INFO(0x20ba18, 0, 64 * 1024, 256, 0) },
-	{ "n25q256a", INFO(0x20ba19, 0, 64 * 1024, 512, SECT_4K) },
-	{ "n25q512a", INFO(0x20bb20, 0, 64 * 1024, 1024, SECT_4K) },
+	{ "n25q064",     INFO(0x20ba17, 0, 64 * 1024,  128, 0) },
+	{ "n25q128a11",  INFO(0x20bb18, 0, 64 * 1024,  256, 0) },
+	{ "n25q128a13",  INFO(0x20ba18, 0, 64 * 1024,  256, 0) },
+	{ "n25q256a",    INFO(0x20ba19, 0, 64 * 1024,  512, SECT_4K) },
+	{ "n25q512a",    INFO(0x20bb20, 0, 64 * 1024, 1024, SECT_4K) },
 
 	/* PMC */
-	{ "pm25lv512", INFO(0, 0, 32 * 1024, 2, SECT_4K_PMC) },
-	{ "pm25lv010", INFO(0, 0, 32 * 1024, 4, SECT_4K_PMC) },
-	{ "pm25lq032", INFO(0x7f9d46, 0, 64 * 1024,  64, SECT_4K) },
+	{ "pm25lv512",   INFO(0,        0, 32 * 1024,    2, SECT_4K_PMC) },
+	{ "pm25lv010",   INFO(0,        0, 32 * 1024,    4, SECT_4K_PMC) },
+	{ "pm25lq032",   INFO(0x7f9d46, 0, 64 * 1024,   64, SECT_4K) },
 
 	/* Spansion -- single (large) sector size only, at least
 	 * for the chips listed here (without boot sectors).
-- 
cgit 


From ddba7c5ad797f4b878f4e177ef300c1f9837cd29 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Mon, 19 Aug 2013 21:30:22 -0700
Subject: mtd: m25p80: remove M25PXX_USE_FAST_READ Kconfig

Remove the compile-time option for FAST_READ, since we have run-time
support for detecting it. This refactors the logic for enabling
fast-read, such that for DT-enabled devices, we honor the
"m25p,fast-read" property but for non-DT devices, we default to using
FAST_READ whenever the flash device supports it.

Normal READ and FAST_READ differ only in the following:

  * FAST_READ supports SPI higher clock frequencies [1]

  * number of dummy cycles; FAST_READ requires 8 dummy cycles (whereas
    READ requires 0) to allow the flash sufficient setup time, even when
    running at higher clock speeds

Thus, for flash chips which support FAST_READ, there is otherwise no
limiting reason why we cannot use the FAST_READ opcode instead of READ.
It simply allows the SPI controller to run at higher clock rates. So
theoretically, nobody should be needing the compile-time option anyway.

  [1] I have a Spansion S25FL128S datasheet which says:

    "The maximum operating clock frequency for the READ command is 50
    MHz."

  And:

    "The maximum operating clock frequency for FAST READ command is 133
    MHz."

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/devices/Kconfig  |  7 -------
 drivers/mtd/devices/m25p80.c | 11 ++++++-----
 2 files changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig
index 74ab4b7e523e..01281382180b 100644
--- a/drivers/mtd/devices/Kconfig
+++ b/drivers/mtd/devices/Kconfig
@@ -95,13 +95,6 @@ config MTD_M25P80
 	  if you want to specify device partitioning or to use a device which
 	  doesn't support the JEDEC ID instruction.
 
-config M25PXX_USE_FAST_READ
-	bool "Use FAST_READ OPCode allowing SPI CLK >= 50MHz"
-	depends on MTD_M25P80
-	default y
-	help
-	  This option enables FAST_READ access supported by ST M25Pxx.
-
 config MTD_SPEAR_SMI
 	tristate "SPEAR MTD NOR Support through SMI controller"
 	depends on PLAT_SPEAR
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 7e3ec7ae727f..d6c5c57380f8 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -1055,13 +1055,14 @@ static int m25p_probe(struct spi_device *spi)
 	flash->page_size = info->page_size;
 	flash->mtd.writebufsize = flash->page_size;
 
-	flash->fast_read = false;
-	if (np && of_property_read_bool(np, "m25p,fast-read"))
+	if (np)
+		/* If we were instantiated by DT, use it */
+		flash->fast_read = of_property_read_bool(np, "m25p,fast-read");
+	else
+		/* If we weren't instantiated by DT, default to fast-read */
 		flash->fast_read = true;
 
-#ifdef CONFIG_M25PXX_USE_FAST_READ
-	flash->fast_read = true;
-#endif
+	/* Some devices cannot do fast-read, no matter what DT tells us */
 	if (info->flags & M25P_NO_FR)
 		flash->fast_read = false;
 
-- 
cgit 


From dc525ff4705cee2291b1637a650489aca86ac937 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Wed, 23 Oct 2013 19:34:46 -0700
Subject: mtd: m25p80: remove 'disabled' device check

It seems like the following commit was never necessary

    commit 5f949137952020214cd167093dd7be448f21c079
    Author: Shaohui Xie <Shaohui.Xie@freescale.com>
    Date:   Fri Oct 14 15:49:00 2011 +0800

        mtd: m25p80: don't probe device which has status of 'disabled'

because it duplicates the code in of_platform_device_create_pdata()
which ensures that 'disabled' nodes are never instantiated.

Also, drop the __maybe_unused.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Sourav Poddar <sourav.poddar@ti.com>
Reviewed-by: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: <devicetree@vger.kernel.org>
---
 drivers/mtd/devices/m25p80.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index d6c5c57380f8..a1dc49a6f84f 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -935,12 +935,7 @@ static int m25p_probe(struct spi_device *spi)
 	struct flash_info		*info;
 	unsigned			i;
 	struct mtd_part_parser_data	ppdata;
-	struct device_node __maybe_unused *np = spi->dev.of_node;
-
-#ifdef CONFIG_MTD_OF_PARTS
-	if (!of_device_is_available(np))
-		return -ENODEV;
-#endif
+	struct device_node *np = spi->dev.of_node;
 
 	/* Platform data helps sort out which chip type we have, as
 	 * well as how this board partitions it.  If we don't have
-- 
cgit 


From ac65caf514ec3e55e8d3d510ee37f80dd97418fe Mon Sep 17 00:00:00 2001
From: Pekon Gupta <pekon@ti.com>
Date: Thu, 24 Oct 2013 18:20:17 +0530
Subject: ARM: OMAP2+: cleaned-up DT support of various ECC schemes

OMAP NAND driver support multiple ECC scheme, which can used in different
flavours, depending on in-build Hardware engines present on SoC.

This patch updates following in DT bindings related to sectionion of ecc-schemes
- ti,elm-id: replaces elm_id (maintains backward compatibility)
- ti,nand-ecc-opts: selection of h/w or s/w implementation of an ecc-scheme
	depends on ti,elm-id. (supported values ham1, bch4, and bch8)
- maintain backward compatibility to deprecated DT bindings (sw, hw, hw-romcode)

Below table shows different flavours of ecc-schemes supported by OMAP devices
+---------------------------------------+---------------+---------------+
| ECC scheme                            |ECC calculation|Error detection|
+---------------------------------------+---------------+---------------+
|OMAP_ECC_HAM1_CODE_HW                  |H/W (GPMC)     |S/W            |
+---------------------------------------+---------------+---------------+
|OMAP_ECC_BCH8_CODE_HW_DETECTION_SW     |H/W (GPMC)     |S/W            |
|(requires CONFIG_MTD_NAND_ECC_BCH)     |               |               |
+---------------------------------------+---------------+---------------+
|OMAP_ECC_BCH8_CODE_HW                  |H/W (GPMC)     |H/W (ELM)      |
|(requires CONFIG_MTD_NAND_OMAP_BCH &&  |               |               |
| ti,elm-id in DT)                      |               |               |
+---------------------------------------+---------------+---------------+

To optimize footprint of omap2-nand driver, selection of some ECC schemes
also require enabling following Kconfigs, in addition to setting appropriate
DT bindings
- Kconfig:CONFIG_MTD_NAND_ECC_BCH        error detection done in software
- Kconfig:CONFIG_MTD_NAND_OMAP_BCH       error detection done by h/w engine

Signed-off-by: Pekon Gupta <pekon@ti.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 .../devicetree/bindings/mtd/gpmc-nand.txt          |  8 +++-
 arch/arm/mach-omap2/gpmc.c                         | 48 +++++++++++++++-------
 include/linux/platform_data/mtd-nand-omap2.h       | 13 +++++-
 3 files changed, 51 insertions(+), 18 deletions(-)

diff --git a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
index df338cb5059c..bfe07e152738 100644
--- a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
@@ -36,8 +36,12 @@ Optional properties:
 		"prefetch-dma"		Prefetch enabled sDMA mode
 		"prefetch-irq"		Prefetch enabled irq mode
 
- - elm_id:	Specifies elm device node. This is required to support BCH
- 		error correction using ELM module.
+ - elm_id:	<deprecated> use "ti,elm-id" instead
+ - ti,elm-id:	Specifies phandle of the ELM devicetree node.
+		ELM is an on-chip hardware engine on TI SoC which is used for
+		locating ECC errors for BCHx algorithms. SoC devices which have
+		ELM hardware engines should specify this device node in .dtsi
+		Using ELM for ECC error correction frees some CPU cycles.
 
 For inline partiton table parsing (optional):
 
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index 579697adaae7..c877129142ba 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -1341,14 +1341,6 @@ static void __maybe_unused gpmc_read_timings_dt(struct device_node *np,
 
 #ifdef CONFIG_MTD_NAND
 
-static const char * const nand_ecc_opts[] = {
-	[OMAP_ECC_HAMMING_CODE_DEFAULT]		= "sw",
-	[OMAP_ECC_HAMMING_CODE_HW]		= "hw",
-	[OMAP_ECC_HAMMING_CODE_HW_ROMCODE]	= "hw-romcode",
-	[OMAP_ECC_BCH4_CODE_HW]			= "bch4",
-	[OMAP_ECC_BCH8_CODE_HW]			= "bch8",
-};
-
 static const char * const nand_xfer_types[] = {
 	[NAND_OMAP_PREFETCH_POLLED]		= "prefetch-polled",
 	[NAND_OMAP_POLLED]			= "polled",
@@ -1378,13 +1370,41 @@ static int gpmc_probe_nand_child(struct platform_device *pdev,
 	gpmc_nand_data->cs = val;
 	gpmc_nand_data->of_node = child;
 
-	if (!of_property_read_string(child, "ti,nand-ecc-opt", &s))
-		for (val = 0; val < ARRAY_SIZE(nand_ecc_opts); val++)
-			if (!strcasecmp(s, nand_ecc_opts[val])) {
-				gpmc_nand_data->ecc_opt = val;
-				break;
-			}
+	/* Detect availability of ELM module */
+	gpmc_nand_data->elm_of_node = of_parse_phandle(child, "ti,elm-id", 0);
+	if (gpmc_nand_data->elm_of_node == NULL)
+		gpmc_nand_data->elm_of_node =
+					of_parse_phandle(child, "elm_id", 0);
+	if (gpmc_nand_data->elm_of_node == NULL)
+		pr_warn("%s: ti,elm-id property not found\n", __func__);
+
+	/* select ecc-scheme for NAND */
+	if (of_property_read_string(child, "ti,nand-ecc-opt", &s)) {
+		pr_err("%s: ti,nand-ecc-opt not found\n", __func__);
+		return -ENODEV;
+	}
+	if (!strcmp(s, "ham1") || !strcmp(s, "sw") ||
+		!strcmp(s, "hw") || !strcmp(s, "hw-romcode"))
+		gpmc_nand_data->ecc_opt =
+				OMAP_ECC_HAM1_CODE_HW;
+	else if (!strcmp(s, "bch4"))
+		if (gpmc_nand_data->elm_of_node)
+			gpmc_nand_data->ecc_opt =
+				OMAP_ECC_BCH4_CODE_HW;
+		else
+			gpmc_nand_data->ecc_opt =
+				OMAP_ECC_BCH4_CODE_HW_DETECTION_SW;
+	else if (!strcmp(s, "bch8"))
+		if (gpmc_nand_data->elm_of_node)
+			gpmc_nand_data->ecc_opt =
+				OMAP_ECC_BCH8_CODE_HW;
+		else
+			gpmc_nand_data->ecc_opt =
+				OMAP_ECC_BCH8_CODE_HW_DETECTION_SW;
+	else
+		pr_err("%s: ti,nand-ecc-opt invalid value\n", __func__);
 
+	/* select data transfer mode for NAND controller */
 	if (!of_property_read_string(child, "ti,nand-xfer-type", &s))
 		for (val = 0; val < ARRAY_SIZE(nand_xfer_types); val++)
 			if (!strcasecmp(s, nand_xfer_types[val])) {
diff --git a/include/linux/platform_data/mtd-nand-omap2.h b/include/linux/platform_data/mtd-nand-omap2.h
index 6bf9ef43ddb1..e4128f1510bf 100644
--- a/include/linux/platform_data/mtd-nand-omap2.h
+++ b/include/linux/platform_data/mtd-nand-omap2.h
@@ -28,8 +28,16 @@ enum omap_ecc {
 	OMAP_ECC_HAMMING_CODE_HW, /* gpmc to detect the error */
 		/* 1-bit ecc: stored at beginning of spare area as romcode */
 	OMAP_ECC_HAMMING_CODE_HW_ROMCODE, /* gpmc method & romcode layout */
-	OMAP_ECC_BCH4_CODE_HW, /* 4-bit BCH ecc code */
-	OMAP_ECC_BCH8_CODE_HW, /* 8-bit BCH ecc code */
+	/* 1-bit  ECC calculation by GPMC, Error detection by Software */
+	OMAP_ECC_HAM1_CODE_HW,
+	/* 4-bit  ECC calculation by GPMC, Error detection by Software */
+	OMAP_ECC_BCH4_CODE_HW_DETECTION_SW,
+	/* 4-bit  ECC calculation by GPMC, Error detection by ELM */
+	OMAP_ECC_BCH4_CODE_HW,
+	/* 8-bit  ECC calculation by GPMC, Error detection by Software */
+	OMAP_ECC_BCH8_CODE_HW_DETECTION_SW,
+	/* 8-bit  ECC calculation by GPMC, Error detection by ELM */
+	OMAP_ECC_BCH8_CODE_HW,
 };
 
 struct gpmc_nand_regs {
@@ -63,5 +71,6 @@ struct omap_nand_platform_data {
 
 	/* for passing the partitions */
 	struct device_node	*of_node;
+	struct device_node	*elm_of_node;
 };
 #endif
-- 
cgit 


From c66d039197e42af8867e5d0d9b904daf0fb9e6bc Mon Sep 17 00:00:00 2001
From: Pekon Gupta <pekon@ti.com>
Date: Thu, 24 Oct 2013 18:20:18 +0530
Subject: mtd: nand: omap: combine different flavours of 1-bit hamming ecc
 schemes

OMAP NAND driver currently supports multiple flavours of 1-bit Hamming
ecc-scheme, like:
- OMAP_ECC_HAMMING_CODE_DEFAULT
	1-bit hamming ecc code using software library
- OMAP_ECC_HAMMING_CODE_HW
	1-bit hamming ecc-code using GPMC h/w engine
- OMAP_ECC_HAMMING_CODE_HW_ROMCODE
	1-bit hamming ecc-code using GPMC h/w engin with ecc-layout compatible
	to ROM code.

This patch combines above multiple ecc-schemes into single implementation:
- OMAP_ECC_HAM1_CODE_HW
	1-bit hamming ecc-code using GPMC h/w engine with ROM-code compatible
	ecc-layout.

Signed-off-by: Pekon Gupta <pekon@ti.com>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 Documentation/devicetree/bindings/mtd/gpmc-nand.txt | 8 ++++----
 arch/arm/mach-omap2/board-flash.c                   | 2 +-
 drivers/mtd/nand/omap2.c                            | 9 +++------
 include/linux/platform_data/mtd-nand-omap2.h        | 7 +------
 4 files changed, 9 insertions(+), 17 deletions(-)

diff --git a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
index bfe07e152738..5e1f31b5ff70 100644
--- a/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/gpmc-nand.txt
@@ -22,10 +22,10 @@ Optional properties:
 				width of 8 is assumed.
 
  - ti,nand-ecc-opt:		A string setting the ECC layout to use. One of:
-
-		"sw"		Software method (default)
-		"hw"		Hardware method
-		"hw-romcode"	gpmc hamming mode method & romcode layout
+		"sw"		<deprecated> use "ham1" instead
+		"hw"		<deprecated> use "ham1" instead
+		"hw-romcode"	<deprecated> use "ham1" instead
+		"ham1"		1-bit Hamming ecc code
 		"bch4"		4-bit BCH ecc code
 		"bch8"		8-bit BCH ecc code
 
diff --git a/arch/arm/mach-omap2/board-flash.c b/arch/arm/mach-omap2/board-flash.c
index fc20a61f6b2a..ac82512b9c8c 100644
--- a/arch/arm/mach-omap2/board-flash.c
+++ b/arch/arm/mach-omap2/board-flash.c
@@ -142,7 +142,7 @@ __init board_nand_init(struct mtd_partition *nand_parts, u8 nr_parts, u8 cs,
 	board_nand_data.nr_parts	= nr_parts;
 	board_nand_data.devsize		= nand_type;
 
-	board_nand_data.ecc_opt = OMAP_ECC_HAMMING_CODE_DEFAULT;
+	board_nand_data.ecc_opt = OMAP_ECC_BCH8_CODE_HW;
 	gpmc_nand_init(&board_nand_data, gpmc_t);
 }
 #endif /* CONFIG_MTD_NAND_OMAP2 || CONFIG_MTD_NAND_OMAP2_MODULE */
diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index 4ecf0e5fd484..8d521aa001c8 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -1993,10 +1993,7 @@ static int omap_nand_probe(struct platform_device *pdev)
 	}
 
 	/* select the ecc type */
-	if (pdata->ecc_opt == OMAP_ECC_HAMMING_CODE_DEFAULT)
-		info->nand.ecc.mode = NAND_ECC_SOFT;
-	else if ((pdata->ecc_opt == OMAP_ECC_HAMMING_CODE_HW) ||
-		(pdata->ecc_opt == OMAP_ECC_HAMMING_CODE_HW_ROMCODE)) {
+	if (pdata->ecc_opt == OMAP_ECC_HAM1_CODE_HW) {
 		info->nand.ecc.bytes            = 3;
 		info->nand.ecc.size             = 512;
 		info->nand.ecc.strength         = 1;
@@ -2025,7 +2022,7 @@ static int omap_nand_probe(struct platform_device *pdev)
 	}
 
 	/* rom code layout */
-	if (pdata->ecc_opt == OMAP_ECC_HAMMING_CODE_HW_ROMCODE) {
+	if (pdata->ecc_opt == OMAP_ECC_HAM1_CODE_HW) {
 
 		if (info->nand.options & NAND_BUSWIDTH_16)
 			offset = 2;
@@ -2033,7 +2030,7 @@ static int omap_nand_probe(struct platform_device *pdev)
 			offset = 1;
 			info->nand.badblock_pattern = &bb_descrip_flashbased;
 		}
-		omap_oobinfo.eccbytes = 3 * (info->mtd.oobsize/16);
+		omap_oobinfo.eccbytes = 3 * (info->mtd.writesize / 512);
 		for (i = 0; i < omap_oobinfo.eccbytes; i++)
 			omap_oobinfo.eccpos[i] = i+offset;
 
diff --git a/include/linux/platform_data/mtd-nand-omap2.h b/include/linux/platform_data/mtd-nand-omap2.h
index e4128f1510bf..4da5bfa2147f 100644
--- a/include/linux/platform_data/mtd-nand-omap2.h
+++ b/include/linux/platform_data/mtd-nand-omap2.h
@@ -23,13 +23,8 @@ enum nand_io {
 };
 
 enum omap_ecc {
-		/* 1-bit ecc: stored at end of spare area */
-	OMAP_ECC_HAMMING_CODE_DEFAULT = 0, /* Default, s/w method */
-	OMAP_ECC_HAMMING_CODE_HW, /* gpmc to detect the error */
-		/* 1-bit ecc: stored at beginning of spare area as romcode */
-	OMAP_ECC_HAMMING_CODE_HW_ROMCODE, /* gpmc method & romcode layout */
 	/* 1-bit  ECC calculation by GPMC, Error detection by Software */
-	OMAP_ECC_HAM1_CODE_HW,
+	OMAP_ECC_HAM1_CODE_HW = 0,
 	/* 4-bit  ECC calculation by GPMC, Error detection by Software */
 	OMAP_ECC_BCH4_CODE_HW_DETECTION_SW,
 	/* 4-bit  ECC calculation by GPMC, Error detection by ELM */
-- 
cgit 


From 633deb58e1ecc81486505fe9d3dc2aa3cfbca719 Mon Sep 17 00:00:00 2001
From: Pekon Gupta <pekon@ti.com>
Date: Thu, 24 Oct 2013 18:20:19 +0530
Subject: mtd: nand: omap: cleanup: replace local references with generic
 framework names

This patch updates following in omap_nand_probe() and omap_nand_remove()
- replaces "info->nand" with "nand_chip" (struct nand_chip *nand_chip)
- replaces "info->mtd" with "mtd" (struct mtd_info *mtd)
- white-space and formatting cleanup

Signed-off-by: Pekon Gupta <pekon@ti.com>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/omap2.c | 112 ++++++++++++++++++++++++-----------------------
 1 file changed, 57 insertions(+), 55 deletions(-)

diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index 8d521aa001c8..5596368a3574 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -1824,10 +1824,12 @@ static int omap_nand_probe(struct platform_device *pdev)
 {
 	struct omap_nand_info		*info;
 	struct omap_nand_platform_data	*pdata;
+	struct mtd_info			*mtd;
+	struct nand_chip		*nand_chip;
 	int				err;
 	int				i, offset;
-	dma_cap_mask_t mask;
-	unsigned sig;
+	dma_cap_mask_t			mask;
+	unsigned			sig;
 	struct resource			*res;
 	struct mtd_part_parser_data	ppdata = {};
 
@@ -1846,17 +1848,16 @@ static int omap_nand_probe(struct platform_device *pdev)
 	spin_lock_init(&info->controller.lock);
 	init_waitqueue_head(&info->controller.wq);
 
-	info->pdev = pdev;
-
+	info->pdev		= pdev;
 	info->gpmc_cs		= pdata->cs;
 	info->reg		= pdata->reg;
-
-	info->mtd.priv		= &info->nand;
-	info->mtd.name		= dev_name(&pdev->dev);
-	info->mtd.owner		= THIS_MODULE;
-
-	info->nand.options	= pdata->devsize;
-	info->nand.options	|= NAND_SKIP_BBTSCAN;
+	mtd			= &info->mtd;
+	mtd->priv		= &info->nand;
+	mtd->name		= dev_name(&pdev->dev);
+	mtd->owner		= THIS_MODULE;
+	nand_chip		= &info->nand;
+	nand_chip->options	= pdata->devsize;
+	nand_chip->options	|= NAND_SKIP_BBTSCAN;
 #ifdef CONFIG_MTD_NAND_OMAP_BCH
 	info->of_node		= pdata->of_node;
 #endif
@@ -1877,16 +1878,16 @@ static int omap_nand_probe(struct platform_device *pdev)
 		goto out_free_info;
 	}
 
-	info->nand.IO_ADDR_R = ioremap(info->phys_base, info->mem_size);
-	if (!info->nand.IO_ADDR_R) {
+	nand_chip->IO_ADDR_R = ioremap(info->phys_base, info->mem_size);
+	if (!nand_chip->IO_ADDR_R) {
 		err = -ENOMEM;
 		goto out_release_mem_region;
 	}
 
-	info->nand.controller = &info->controller;
+	nand_chip->controller = &info->controller;
 
-	info->nand.IO_ADDR_W = info->nand.IO_ADDR_R;
-	info->nand.cmd_ctrl  = omap_hwcontrol;
+	nand_chip->IO_ADDR_W = nand_chip->IO_ADDR_R;
+	nand_chip->cmd_ctrl  = omap_hwcontrol;
 
 	/*
 	 * If RDY/BSY line is connected to OMAP then use the omap ready
@@ -1896,26 +1897,26 @@ static int omap_nand_probe(struct platform_device *pdev)
 	 * device and read status register until you get a failure or success
 	 */
 	if (pdata->dev_ready) {
-		info->nand.dev_ready = omap_dev_ready;
-		info->nand.chip_delay = 0;
+		nand_chip->dev_ready = omap_dev_ready;
+		nand_chip->chip_delay = 0;
 	} else {
-		info->nand.waitfunc = omap_wait;
-		info->nand.chip_delay = 50;
+		nand_chip->waitfunc = omap_wait;
+		nand_chip->chip_delay = 50;
 	}
 
 	switch (pdata->xfer_type) {
 	case NAND_OMAP_PREFETCH_POLLED:
-		info->nand.read_buf   = omap_read_buf_pref;
-		info->nand.write_buf  = omap_write_buf_pref;
+		nand_chip->read_buf   = omap_read_buf_pref;
+		nand_chip->write_buf  = omap_write_buf_pref;
 		break;
 
 	case NAND_OMAP_POLLED:
-		if (info->nand.options & NAND_BUSWIDTH_16) {
-			info->nand.read_buf   = omap_read_buf16;
-			info->nand.write_buf  = omap_write_buf16;
+		if (nand_chip->options & NAND_BUSWIDTH_16) {
+			nand_chip->read_buf   = omap_read_buf16;
+			nand_chip->write_buf  = omap_write_buf16;
 		} else {
-			info->nand.read_buf   = omap_read_buf8;
-			info->nand.write_buf  = omap_write_buf8;
+			nand_chip->read_buf   = omap_read_buf8;
+			nand_chip->write_buf  = omap_write_buf8;
 		}
 		break;
 
@@ -1944,8 +1945,8 @@ static int omap_nand_probe(struct platform_device *pdev)
 					err);
 				goto out_release_mem_region;
 			}
-			info->nand.read_buf   = omap_read_buf_dma_pref;
-			info->nand.write_buf  = omap_write_buf_dma_pref;
+			nand_chip->read_buf   = omap_read_buf_dma_pref;
+			nand_chip->write_buf  = omap_write_buf_dma_pref;
 		}
 		break;
 
@@ -1980,8 +1981,8 @@ static int omap_nand_probe(struct platform_device *pdev)
 			goto out_release_mem_region;
 		}
 
-		info->nand.read_buf  = omap_read_buf_irq_pref;
-		info->nand.write_buf = omap_write_buf_irq_pref;
+		nand_chip->read_buf  = omap_read_buf_irq_pref;
+		nand_chip->write_buf = omap_write_buf_irq_pref;
 
 		break;
 
@@ -1994,16 +1995,16 @@ static int omap_nand_probe(struct platform_device *pdev)
 
 	/* select the ecc type */
 	if (pdata->ecc_opt == OMAP_ECC_HAM1_CODE_HW) {
-		info->nand.ecc.bytes            = 3;
-		info->nand.ecc.size             = 512;
-		info->nand.ecc.strength         = 1;
-		info->nand.ecc.calculate        = omap_calculate_ecc;
-		info->nand.ecc.hwctl            = omap_enable_hwecc;
-		info->nand.ecc.correct          = omap_correct_data;
-		info->nand.ecc.mode             = NAND_ECC_HW;
+		nand_chip->ecc.bytes            = 3;
+		nand_chip->ecc.size             = 512;
+		nand_chip->ecc.strength         = 1;
+		nand_chip->ecc.calculate        = omap_calculate_ecc;
+		nand_chip->ecc.hwctl            = omap_enable_hwecc;
+		nand_chip->ecc.correct          = omap_correct_data;
+		nand_chip->ecc.mode             = NAND_ECC_HW;
 	} else if ((pdata->ecc_opt == OMAP_ECC_BCH4_CODE_HW) ||
 		   (pdata->ecc_opt == OMAP_ECC_BCH8_CODE_HW)) {
-		err = omap3_init_bch(&info->mtd, pdata->ecc_opt);
+		err = omap3_init_bch(mtd, pdata->ecc_opt);
 		if (err) {
 			err = -EINVAL;
 			goto out_release_mem_region;
@@ -2013,9 +2014,9 @@ static int omap_nand_probe(struct platform_device *pdev)
 	/* DIP switches on some boards change between 8 and 16 bit
 	 * bus widths for flash.  Try the other width if the first try fails.
 	 */
-	if (nand_scan_ident(&info->mtd, 1, NULL)) {
-		info->nand.options ^= NAND_BUSWIDTH_16;
-		if (nand_scan_ident(&info->mtd, 1, NULL)) {
+	if (nand_scan_ident(mtd, 1, NULL)) {
+		nand_chip->options ^= NAND_BUSWIDTH_16;
+		if (nand_scan_ident(mtd, 1, NULL)) {
 			err = -ENXIO;
 			goto out_release_mem_region;
 		}
@@ -2024,25 +2025,25 @@ static int omap_nand_probe(struct platform_device *pdev)
 	/* rom code layout */
 	if (pdata->ecc_opt == OMAP_ECC_HAM1_CODE_HW) {
 
-		if (info->nand.options & NAND_BUSWIDTH_16)
+		if (nand_chip->options & NAND_BUSWIDTH_16) {
 			offset = 2;
-		else {
+		} else {
 			offset = 1;
-			info->nand.badblock_pattern = &bb_descrip_flashbased;
+			nand_chip->badblock_pattern = &bb_descrip_flashbased;
 		}
-		omap_oobinfo.eccbytes = 3 * (info->mtd.writesize / 512);
+		omap_oobinfo.eccbytes = 3 * (mtd->writesize / 512);
 		for (i = 0; i < omap_oobinfo.eccbytes; i++)
 			omap_oobinfo.eccpos[i] = i+offset;
 
 		omap_oobinfo.oobfree->offset = offset + omap_oobinfo.eccbytes;
-		omap_oobinfo.oobfree->length = info->mtd.oobsize -
+		omap_oobinfo.oobfree->length = mtd->oobsize -
 					(offset + omap_oobinfo.eccbytes);
 
-		info->nand.ecc.layout = &omap_oobinfo;
+		nand_chip->ecc.layout = &omap_oobinfo;
 	} else if ((pdata->ecc_opt == OMAP_ECC_BCH4_CODE_HW) ||
 		   (pdata->ecc_opt == OMAP_ECC_BCH8_CODE_HW)) {
 		/* build OOB layout for BCH ECC correction */
-		err = omap3_init_bch_tail(&info->mtd);
+		err = omap3_init_bch_tail(mtd);
 		if (err) {
 			err = -EINVAL;
 			goto out_release_mem_region;
@@ -2050,16 +2051,16 @@ static int omap_nand_probe(struct platform_device *pdev)
 	}
 
 	/* second phase scan */
-	if (nand_scan_tail(&info->mtd)) {
+	if (nand_scan_tail(mtd)) {
 		err = -ENXIO;
 		goto out_release_mem_region;
 	}
 
 	ppdata.of_node = pdata->of_node;
-	mtd_device_parse_register(&info->mtd, NULL, &ppdata, pdata->parts,
+	mtd_device_parse_register(mtd, NULL, &ppdata, pdata->parts,
 				  pdata->nr_parts);
 
-	platform_set_drvdata(pdev, &info->mtd);
+	platform_set_drvdata(pdev, mtd);
 
 	return 0;
 
@@ -2080,9 +2081,10 @@ out_free_info:
 static int omap_nand_remove(struct platform_device *pdev)
 {
 	struct mtd_info *mtd = platform_get_drvdata(pdev);
+	struct nand_chip *nand_chip = mtd->priv;
 	struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
 							mtd);
-	omap3_free_bch(&info->mtd);
+	omap3_free_bch(mtd);
 
 	if (info->dma)
 		dma_release_channel(info->dma);
@@ -2093,8 +2095,8 @@ static int omap_nand_remove(struct platform_device *pdev)
 		free_irq(info->gpmc_irq_fifo, info);
 
 	/* Release NAND device, its internal structures and partitions */
-	nand_release(&info->mtd);
-	iounmap(info->nand.IO_ADDR_R);
+	nand_release(mtd);
+	iounmap(nand_chip->IO_ADDR_R);
 	release_mem_region(info->phys_base, info->mem_size);
 	kfree(info);
 	return 0;
-- 
cgit 


From f18befb57b0779094ac7658fa7be5cf559da835f Mon Sep 17 00:00:00 2001
From: Pekon Gupta <pekon@ti.com>
Date: Thu, 24 Oct 2013 18:20:20 +0530
Subject: mtd: nand: omap: use DT specified bus-width only for scanning NAND
 device

This patch:
- calls nand_scan_ident() using bus-width as passed by DT
- removes double calls to nand_scan_ident(), in case first call fails
  then omap_nand_probe just returns error.

Signed-off-by: Pekon Gupta <pekon@ti.com>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/omap2.c | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index 5596368a3574..f464321c598d 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -1856,7 +1856,6 @@ static int omap_nand_probe(struct platform_device *pdev)
 	mtd->name		= dev_name(&pdev->dev);
 	mtd->owner		= THIS_MODULE;
 	nand_chip		= &info->nand;
-	nand_chip->options	= pdata->devsize;
 	nand_chip->options	|= NAND_SKIP_BBTSCAN;
 #ifdef CONFIG_MTD_NAND_OMAP_BCH
 	info->of_node		= pdata->of_node;
@@ -1904,6 +1903,15 @@ static int omap_nand_probe(struct platform_device *pdev)
 		nand_chip->chip_delay = 50;
 	}
 
+	/* scan NAND device connected to chip controller */
+	nand_chip->options |= pdata->devsize & NAND_BUSWIDTH_16;
+	if (nand_scan_ident(mtd, 1, NULL)) {
+		pr_err("nand device scan failed, may be bus-width mismatch\n");
+		err = -ENXIO;
+		goto out_release_mem_region;
+	}
+
+	/* re-populate low-level callbacks based on xfer modes */
 	switch (pdata->xfer_type) {
 	case NAND_OMAP_PREFETCH_POLLED:
 		nand_chip->read_buf   = omap_read_buf_pref;
@@ -2011,17 +2019,6 @@ static int omap_nand_probe(struct platform_device *pdev)
 		}
 	}
 
-	/* DIP switches on some boards change between 8 and 16 bit
-	 * bus widths for flash.  Try the other width if the first try fails.
-	 */
-	if (nand_scan_ident(mtd, 1, NULL)) {
-		nand_chip->options ^= NAND_BUSWIDTH_16;
-		if (nand_scan_ident(mtd, 1, NULL)) {
-			err = -ENXIO;
-			goto out_release_mem_region;
-		}
-	}
-
 	/* rom code layout */
 	if (pdata->ecc_opt == OMAP_ECC_HAM1_CODE_HW) {
 
-- 
cgit 


From a919e51161b58ed7e6e663daba99ab7d558808f3 Mon Sep 17 00:00:00 2001
From: Pekon Gupta <pekon@ti.com>
Date: Thu, 24 Oct 2013 18:20:21 +0530
Subject: mtd: nand: omap2: clean-up BCHx_HW and BCHx_SW ECC configurations in
 device_probe

current implementation in omap3_init_bch() has some redundant code like:
(1) omap3_init_bch() re-probes the DT-binding to detect presence of ELM h/w
    engine on SoC. And based on that it selects implemetation of ecc-scheme.
    However, this is already done as part of GPMC DT parsing.
(2) As omap3_init_bch() serves as common function for configuring all types of
    BCHx ecc-schemes, so there are multiple levels of redudant if..then..else
    checks while populating nand_chip->ecc.

This patch make following changes to OMAP NAND driver:
(1) removes omap3_init_bch(): each ecc-scheme is individually configured in
    omap_nand_probe() there by removing redundant if..then..else checks.
(2) adds is_elm_present(): re-probing of ELM device via DT is not required as
    it's done in GPMC driver probe. Thus is_elm_present() just initializes ELM
    driver with NAND probe data, when ecc-scheme with h/w based error-detection
    is used.
(3) separates out configuration of different flavours of "BCH4" and "BCH8"
    ecc-schemes as given in below table
(4) conditionally compiles callbacks implementations of ecc.hwctl(),
    ecc.calculate(), ecc.correct() to avoid warning of un-used functions.

+---------------------------------------+---------------+---------------+
| ECC scheme                            |ECC calculation|Error detection|
+---------------------------------------+---------------+---------------+
|OMAP_ECC_HAM1_CODE_HW                  |H/W (GPMC)     |S/W            |
+---------------------------------------+---------------+---------------+
|OMAP_ECC_BCH4_CODE_HW_DETECTION_SW     |H/W (GPMC)     |S/W (lib/bch.c)|
| (needs CONFIG_MTD_NAND_ECC_BCH)       |               |               |
|                                       |               |               |
|OMAP_ECC_BCH4_CODE_HW                  |H/W (GPMC)     |H/W (ELM)      |
| (needs CONFIG_MTD_NAND_OMAP_BCH &&    |               |               |
|        ti,elm-id)                     |               |               |
+---------------------------------------+---------------+---------------+
|OMAP_ECC_BCH8_CODE_HW_DETECTION_SW     |H/W (GPMC)     |S/W (lib/bch.c)|
| (needs CONFIG_MTD_NAND_ECC_BCH)       |               |               |
|                                       |               |               |
|OMAP_ECC_BCH8_CODE_HW                  |H/W (GPMC)     |H/W (ELM)      |
| (needs CONFIG_MTD_NAND_OMAP_BCH &&    |               |               |
|        ti,elm-id)                     |               |               |
+---------------------------------------+---------------+---------------+

- 'CONFIG_MTD_NAND_ECC_BCH' is generic KConfig required to build lib/bch.c
    which is required for ECC error detection done in software.
    (mainly used for legacy platforms which do not have on-chip ELM engine)

- 'CONFIG_MTD_NAND_OMAP_BCH' is OMAP specific Kconfig to detemine presence
    on ELM h/w engine on SoC.

Signed-off-by: Pekon Gupta <pekon@ti.com>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/omap2.c | 281 ++++++++++++++++++++++++++---------------------
 1 file changed, 158 insertions(+), 123 deletions(-)

diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index f464321c598d..86ce48b2c47a 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -25,10 +25,8 @@
 #include <linux/of.h>
 #include <linux/of_device.h>
 
-#ifdef CONFIG_MTD_NAND_OMAP_BCH
 #include <linux/bch.h>
 #include <linux/platform_data/elm.h>
-#endif
 
 #include <linux/platform_data/mtd-nand-omap2.h>
 
@@ -141,6 +139,8 @@
 #define BCH_ECC_SIZE0		0x0	/* ecc_size0 = 0, no oob protection */
 #define BCH_ECC_SIZE1		0x20	/* ecc_size1 = 32 */
 
+#define OMAP_ECC_BCH8_POLYNOMIAL	0x201b
+
 #ifdef CONFIG_MTD_NAND_OMAP_BCH
 static u_char bch8_vector[] = {0xf3, 0xdb, 0x14, 0x16, 0x8b, 0xd2, 0xbe, 0xcc,
 	0xac, 0x6b, 0xff, 0x99, 0x7b};
@@ -182,14 +182,12 @@ struct omap_nand_info {
 	u_char				*buf;
 	int					buf_len;
 	struct gpmc_nand_regs		reg;
-
-#ifdef CONFIG_MTD_NAND_OMAP_BCH
+	/* fields specific for BCHx_HW ECC scheme */
 	struct bch_control             *bch;
 	struct nand_ecclayout           ecclayout;
 	bool				is_elm_used;
 	struct device			*elm_dev;
 	struct device_node		*of_node;
-#endif
 };
 
 /**
@@ -1058,8 +1056,7 @@ static int omap_dev_ready(struct mtd_info *mtd)
 	}
 }
 
-#ifdef CONFIG_MTD_NAND_OMAP_BCH
-
+#if defined(CONFIG_MTD_NAND_ECC_BCH) || defined(CONFIG_MTD_NAND_OMAP_BCH)
 /**
  * omap3_enable_hwecc_bch - Program OMAP3 GPMC to perform BCH ECC correction
  * @mtd: MTD device structure
@@ -1140,7 +1137,9 @@ static void omap3_enable_hwecc_bch(struct mtd_info *mtd, int mode)
 	/* Clear ecc and enable bits */
 	writel(ECCCLEAR | ECC1, info->reg.gpmc_ecc_control);
 }
+#endif
 
+#ifdef CONFIG_MTD_NAND_ECC_BCH
 /**
  * omap3_calculate_ecc_bch4 - Generate 7 bytes of ECC bytes
  * @mtd: MTD device structure
@@ -1225,7 +1224,9 @@ static int omap3_calculate_ecc_bch8(struct mtd_info *mtd, const u_char *dat,
 
 	return 0;
 }
+#endif /* CONFIG_MTD_NAND_ECC_BCH */
 
+#ifdef CONFIG_MTD_NAND_OMAP_BCH
 /**
  * omap3_calculate_ecc_bch - Generate bytes of ECC bytes
  * @mtd:	MTD device structure
@@ -1517,7 +1518,9 @@ static int omap_elm_correct_data(struct mtd_info *mtd, u_char *data,
 
 	return stat;
 }
+#endif /* CONFIG_MTD_NAND_OMAP_BCH */
 
+#ifdef CONFIG_MTD_NAND_ECC_BCH
 /**
  * omap3_correct_data_bch - Decode received data and correct errors
  * @mtd: MTD device structure
@@ -1549,7 +1552,9 @@ static int omap3_correct_data_bch(struct mtd_info *mtd, u_char *data,
 	}
 	return count;
 }
+#endif /* CONFIG_MTD_NAND_ECC_BCH */
 
+#ifdef CONFIG_MTD_NAND_OMAP_BCH
 /**
  * omap_write_page_bch - BCH ecc based write page function for entire page
  * @mtd:		mtd info structure
@@ -1637,118 +1642,48 @@ static int omap_read_page_bch(struct mtd_info *mtd, struct nand_chip *chip,
 }
 
 /**
- * omap3_free_bch - Release BCH ecc resources
- * @mtd: MTD device structure
+ * is_elm_present - checks for presence of ELM module by scanning DT nodes
+ * @omap_nand_info: NAND device structure containing platform data
+ * @bch_type: 0x0=BCH4, 0x1=BCH8, 0x2=BCH16
  */
-static void omap3_free_bch(struct mtd_info *mtd)
+static int is_elm_present(struct omap_nand_info *info,
+			struct device_node *elm_node, enum bch_ecc bch_type)
 {
-	struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
-						   mtd);
-	if (info->bch) {
-		free_bch(info->bch);
-		info->bch = NULL;
+	struct platform_device *pdev;
+	info->is_elm_used = false;
+	/* check whether elm-id is passed via DT */
+	if (!elm_node) {
+		pr_err("nand: error: ELM DT node not found\n");
+		return -ENODEV;
+	}
+	pdev = of_find_device_by_node(elm_node);
+	/* check whether ELM device is registered */
+	if (!pdev) {
+		pr_err("nand: error: ELM device not found\n");
+		return -ENODEV;
 	}
+	/* ELM module available, now configure it */
+	info->elm_dev = &pdev->dev;
+	if (elm_config(info->elm_dev, bch_type))
+		return -ENODEV;
+	info->is_elm_used = true;
+	return 0;
 }
+#endif /* CONFIG_MTD_NAND_ECC_BCH */
 
+#ifdef CONFIG_MTD_NAND_ECC_BCH
 /**
- * omap3_init_bch - Initialize BCH ECC
+ * omap3_free_bch - Release BCH ecc resources
  * @mtd: MTD device structure
- * @ecc_opt: OMAP ECC mode (OMAP_ECC_BCH4_CODE_HW or OMAP_ECC_BCH8_CODE_HW)
  */
-static int omap3_init_bch(struct mtd_info *mtd, int ecc_opt)
+static void omap3_free_bch(struct mtd_info *mtd)
 {
-	int max_errors;
 	struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
 						   mtd);
-#ifdef CONFIG_MTD_NAND_OMAP_BCH8
-	const int hw_errors = BCH8_MAX_ERROR;
-#else
-	const int hw_errors = BCH4_MAX_ERROR;
-#endif
-	enum bch_ecc bch_type;
-	const __be32 *parp;
-	int lenp;
-	struct device_node *elm_node;
-
-	info->bch = NULL;
-
-	max_errors = (ecc_opt == OMAP_ECC_BCH8_CODE_HW) ?
-		BCH8_MAX_ERROR : BCH4_MAX_ERROR;
-	if (max_errors != hw_errors) {
-		pr_err("cannot configure %d-bit BCH ecc, only %d-bit supported",
-		       max_errors, hw_errors);
-		goto fail;
-	}
-
-	info->nand.ecc.size = 512;
-	info->nand.ecc.hwctl = omap3_enable_hwecc_bch;
-	info->nand.ecc.mode = NAND_ECC_HW;
-	info->nand.ecc.strength = max_errors;
-
-	if (hw_errors == BCH8_MAX_ERROR)
-		bch_type = BCH8_ECC;
-	else
-		bch_type = BCH4_ECC;
-
-	/* Detect availability of ELM module */
-	parp = of_get_property(info->of_node, "elm_id", &lenp);
-	if ((parp == NULL) && (lenp != (sizeof(void *) * 2))) {
-		pr_err("Missing elm_id property, fall back to Software BCH\n");
-		info->is_elm_used = false;
-	} else {
-		struct platform_device *pdev;
-
-		elm_node = of_find_node_by_phandle(be32_to_cpup(parp));
-		pdev = of_find_device_by_node(elm_node);
-		info->elm_dev = &pdev->dev;
-
-		if (elm_config(info->elm_dev, bch_type) == 0)
-			info->is_elm_used = true;
-	}
-
-	if (info->is_elm_used && (mtd->writesize <= 4096)) {
-
-		if (hw_errors == BCH8_MAX_ERROR)
-			info->nand.ecc.bytes = BCH8_SIZE;
-		else
-			info->nand.ecc.bytes = BCH4_SIZE;
-
-		info->nand.ecc.correct = omap_elm_correct_data;
-		info->nand.ecc.calculate = omap3_calculate_ecc_bch;
-		info->nand.ecc.read_page = omap_read_page_bch;
-		info->nand.ecc.write_page = omap_write_page_bch;
-	} else {
-		/*
-		 * software bch library is only used to detect and
-		 * locate errors
-		 */
-		info->bch = init_bch(13, max_errors,
-				0x201b /* hw polynomial */);
-		if (!info->bch)
-			goto fail;
-
-		info->nand.ecc.correct = omap3_correct_data_bch;
-
-		/*
-		 * The number of corrected errors in an ecc block that will
-		 * trigger block scrubbing defaults to the ecc strength (4 or 8)
-		 * Set mtd->bitflip_threshold here to define a custom threshold.
-		 */
-
-		if (max_errors == 8) {
-			info->nand.ecc.bytes = 13;
-			info->nand.ecc.calculate = omap3_calculate_ecc_bch8;
-		} else {
-			info->nand.ecc.bytes = 7;
-			info->nand.ecc.calculate = omap3_calculate_ecc_bch4;
-		}
+	if (info->bch) {
+		free_bch(info->bch);
+		info->bch = NULL;
 	}
-
-	pr_info("enabling NAND BCH ecc with %d-bit correction\n", max_errors);
-	return 0;
-fail:
-	omap3_free_bch(mtd);
-	return -1;
 }
 
 /**
@@ -1806,11 +1741,6 @@ fail:
 }
 
 #else
-static int omap3_init_bch(struct mtd_info *mtd, int ecc_opt)
-{
-	pr_err("CONFIG_MTD_NAND_OMAP_BCH is not enabled\n");
-	return -1;
-}
 static int omap3_init_bch_tail(struct mtd_info *mtd)
 {
 	return -1;
@@ -1818,7 +1748,7 @@ static int omap3_init_bch_tail(struct mtd_info *mtd)
 static void omap3_free_bch(struct mtd_info *mtd)
 {
 }
-#endif /* CONFIG_MTD_NAND_OMAP_BCH */
+#endif /* CONFIG_MTD_NAND_ECC_BCH */
 
 static int omap_nand_probe(struct platform_device *pdev)
 {
@@ -1851,15 +1781,14 @@ static int omap_nand_probe(struct platform_device *pdev)
 	info->pdev		= pdev;
 	info->gpmc_cs		= pdata->cs;
 	info->reg		= pdata->reg;
+	info->bch		= NULL;
+	info->of_node		= pdata->of_node;
 	mtd			= &info->mtd;
 	mtd->priv		= &info->nand;
 	mtd->name		= dev_name(&pdev->dev);
 	mtd->owner		= THIS_MODULE;
 	nand_chip		= &info->nand;
 	nand_chip->options	|= NAND_SKIP_BBTSCAN;
-#ifdef CONFIG_MTD_NAND_OMAP_BCH
-	info->of_node		= pdata->of_node;
-#endif
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (res == NULL) {
@@ -2001,22 +1930,125 @@ static int omap_nand_probe(struct platform_device *pdev)
 		goto out_release_mem_region;
 	}
 
-	/* select the ecc type */
-	if (pdata->ecc_opt == OMAP_ECC_HAM1_CODE_HW) {
+	/* populate MTD interface based on ECC scheme */
+	switch (pdata->ecc_opt) {
+	case OMAP_ECC_HAM1_CODE_HW:
+		pr_info("nand: using OMAP_ECC_HAM1_CODE_HW\n");
+		nand_chip->ecc.mode             = NAND_ECC_HW;
 		nand_chip->ecc.bytes            = 3;
 		nand_chip->ecc.size             = 512;
 		nand_chip->ecc.strength         = 1;
 		nand_chip->ecc.calculate        = omap_calculate_ecc;
 		nand_chip->ecc.hwctl            = omap_enable_hwecc;
 		nand_chip->ecc.correct          = omap_correct_data;
-		nand_chip->ecc.mode             = NAND_ECC_HW;
-	} else if ((pdata->ecc_opt == OMAP_ECC_BCH4_CODE_HW) ||
-		   (pdata->ecc_opt == OMAP_ECC_BCH8_CODE_HW)) {
-		err = omap3_init_bch(mtd, pdata->ecc_opt);
-		if (err) {
+		break;
+
+	case OMAP_ECC_BCH4_CODE_HW_DETECTION_SW:
+#ifdef CONFIG_MTD_NAND_ECC_BCH
+		pr_info("nand: using OMAP_ECC_BCH4_CODE_HW_DETECTION_SW\n");
+		nand_chip->ecc.mode		= NAND_ECC_HW;
+		nand_chip->ecc.size		= 512;
+		nand_chip->ecc.bytes		= 7;
+		nand_chip->ecc.strength		= 4;
+		nand_chip->ecc.hwctl		= omap3_enable_hwecc_bch;
+		nand_chip->ecc.correct		= omap3_correct_data_bch;
+		nand_chip->ecc.calculate	= omap3_calculate_ecc_bch4;
+		/* software bch library is used for locating errors */
+		info->bch = init_bch(nand_chip->ecc.bytes,
+					nand_chip->ecc.strength,
+					OMAP_ECC_BCH8_POLYNOMIAL);
+		if (!info->bch) {
+			pr_err("nand: error: unable to use s/w BCH library\n");
 			err = -EINVAL;
+		}
+		break;
+#else
+		pr_err("nand: error: CONFIG_MTD_NAND_ECC_BCH not enabled\n");
+		err = -EINVAL;
+		goto out_release_mem_region;
+#endif
+
+	case OMAP_ECC_BCH4_CODE_HW:
+#ifdef CONFIG_MTD_NAND_OMAP_BCH
+		pr_info("nand: using OMAP_ECC_BCH4_CODE_HW ECC scheme\n");
+		nand_chip->ecc.mode		= NAND_ECC_HW;
+		nand_chip->ecc.size		= 512;
+		/* 14th bit is kept reserved for ROM-code compatibility */
+		nand_chip->ecc.bytes		= 7 + 1;
+		nand_chip->ecc.strength		= 4;
+		nand_chip->ecc.hwctl		= omap3_enable_hwecc_bch;
+		nand_chip->ecc.correct		= omap_elm_correct_data;
+		nand_chip->ecc.calculate	= omap3_calculate_ecc_bch;
+		nand_chip->ecc.read_page	= omap_read_page_bch;
+		nand_chip->ecc.write_page	= omap_write_page_bch;
+		/* This ECC scheme requires ELM H/W block */
+		if (is_elm_present(info, pdata->elm_of_node, BCH4_ECC) < 0) {
+			pr_err("nand: error: could not initialize ELM\n");
+			err = -ENODEV;
 			goto out_release_mem_region;
 		}
+		break;
+#else
+		pr_err("nand: error: CONFIG_MTD_NAND_OMAP_BCH not enabled\n");
+		err = -EINVAL;
+		goto out_release_mem_region;
+#endif
+
+	case OMAP_ECC_BCH8_CODE_HW_DETECTION_SW:
+#ifdef CONFIG_MTD_NAND_ECC_BCH
+		pr_info("nand: using OMAP_ECC_BCH8_CODE_HW_DETECTION_SW\n");
+		nand_chip->ecc.mode		= NAND_ECC_HW;
+		nand_chip->ecc.size		= 512;
+		nand_chip->ecc.bytes		= 13;
+		nand_chip->ecc.strength		= 8;
+		nand_chip->ecc.hwctl		= omap3_enable_hwecc_bch;
+		nand_chip->ecc.correct		= omap3_correct_data_bch;
+		nand_chip->ecc.calculate	= omap3_calculate_ecc_bch8;
+		/* software bch library is used for locating errors */
+		info->bch = init_bch(nand_chip->ecc.bytes,
+					nand_chip->ecc.strength,
+					OMAP_ECC_BCH8_POLYNOMIAL);
+		if (!info->bch) {
+			pr_err("nand: error: unable to use s/w BCH library\n");
+			err = -EINVAL;
+			goto out_release_mem_region;
+		}
+		break;
+#else
+		pr_err("nand: error: CONFIG_MTD_NAND_ECC_BCH not enabled\n");
+		err = -EINVAL;
+		goto out_release_mem_region;
+#endif
+
+	case OMAP_ECC_BCH8_CODE_HW:
+#ifdef CONFIG_MTD_NAND_OMAP_BCH
+		pr_info("nand: using OMAP_ECC_BCH8_CODE_HW ECC scheme\n");
+		nand_chip->ecc.mode		= NAND_ECC_HW;
+		nand_chip->ecc.size		= 512;
+		/* 14th bit is kept reserved for ROM-code compatibility */
+		nand_chip->ecc.bytes		= 13 + 1;
+		nand_chip->ecc.strength		= 8;
+		nand_chip->ecc.hwctl		= omap3_enable_hwecc_bch;
+		nand_chip->ecc.correct		= omap_elm_correct_data;
+		nand_chip->ecc.calculate	= omap3_calculate_ecc_bch;
+		nand_chip->ecc.read_page	= omap_read_page_bch;
+		nand_chip->ecc.write_page	= omap_write_page_bch;
+		/* This ECC scheme requires ELM H/W block */
+		if (is_elm_present(info, pdata->elm_of_node, BCH8_ECC) < 0) {
+			pr_err("nand: error: could not initialize ELM\n");
+			goto out_release_mem_region;
+		}
+		break;
+#else
+		pr_err("nand: error: CONFIG_MTD_NAND_OMAP_BCH not enabled\n");
+		err = -EINVAL;
+		goto out_release_mem_region;
+#endif
+
+	default:
+		pr_err("nand: error: invalid or unsupported ECC scheme\n");
+		err = -EINVAL;
+		goto out_release_mem_region;
 	}
 
 	/* rom code layout */
@@ -2038,6 +2070,8 @@ static int omap_nand_probe(struct platform_device *pdev)
 
 		nand_chip->ecc.layout = &omap_oobinfo;
 	} else if ((pdata->ecc_opt == OMAP_ECC_BCH4_CODE_HW) ||
+		   (pdata->ecc_opt == OMAP_ECC_BCH4_CODE_HW_DETECTION_SW) ||
+		   (pdata->ecc_opt == OMAP_ECC_BCH8_CODE_HW_DETECTION_SW) ||
 		   (pdata->ecc_opt == OMAP_ECC_BCH8_CODE_HW)) {
 		/* build OOB layout for BCH ECC correction */
 		err = omap3_init_bch_tail(mtd);
@@ -2070,6 +2104,7 @@ out_release_mem_region:
 		free_irq(info->gpmc_irq_fifo, info);
 	release_mem_region(info->phys_base, info->mem_size);
 out_free_info:
+	omap3_free_bch(mtd);
 	kfree(info);
 
 	return err;
-- 
cgit 


From b491da7233d5dc1a24d46ca1ad0209900329c5d0 Mon Sep 17 00:00:00 2001
From: Pekon Gupta <pekon@ti.com>
Date: Thu, 24 Oct 2013 18:20:22 +0530
Subject: mtd: nand: omap: clean-up ecc layout for BCH ecc schemes

In current implementation omap3_init_bch_tail() is a common function to
define ecc layout for different BCHx ecc schemes.This patch:
(1) removes omap3_init_bch_tail() and defines ecc layout for individual
    ecc-schemes along with populating their nand_chip->ecc data in
    omap_nand_probe(). This improves the readability and scalability of
    code for add new ecc schemes in future.
(2) removes 'struct nand_bbt_descr bb_descrip_flashbased' because default
    nand_bbt_descr in nand_bbt.c matches the same (.len=1 for x8 devices).
(3) add the check to see if NAND device has enough OOB/Spare bytes to
    store ECC signature of whole page, as defined by ecc-scheme.

Signed-off-by: Pekon Gupta <pekon@ti.com>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/omap2.c | 161 ++++++++++++++++++-----------------------------
 1 file changed, 62 insertions(+), 99 deletions(-)

diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index 86ce48b2c47a..b6a08b23853b 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -139,6 +139,7 @@
 #define BCH_ECC_SIZE0		0x0	/* ecc_size0 = 0, no oob protection */
 #define BCH_ECC_SIZE1		0x20	/* ecc_size1 = 32 */
 
+#define BADBLOCK_MARKER_LENGTH		2
 #define OMAP_ECC_BCH8_POLYNOMIAL	0x201b
 
 #ifdef CONFIG_MTD_NAND_OMAP_BCH
@@ -149,17 +150,6 @@ static u_char bch4_vector[] = {0x00, 0x6b, 0x31, 0xdd, 0x41, 0xbc, 0x10};
 
 /* oob info generated runtime depending on ecc algorithm and layout selected */
 static struct nand_ecclayout omap_oobinfo;
-/* Define some generic bad / good block scan pattern which are used
- * while scanning a device for factory marked good / bad blocks
- */
-static uint8_t scan_ff_pattern[] = { 0xff };
-static struct nand_bbt_descr bb_descrip_flashbased = {
-	.options = NAND_BBT_SCANALLPAGES,
-	.offs = 0,
-	.len = 1,
-	.pattern = scan_ff_pattern,
-};
-
 
 struct omap_nand_info {
 	struct nand_hw_control		controller;
@@ -184,7 +174,6 @@ struct omap_nand_info {
 	struct gpmc_nand_regs		reg;
 	/* fields specific for BCHx_HW ECC scheme */
 	struct bch_control             *bch;
-	struct nand_ecclayout           ecclayout;
 	bool				is_elm_used;
 	struct device			*elm_dev;
 	struct device_node		*of_node;
@@ -1686,65 +1675,8 @@ static void omap3_free_bch(struct mtd_info *mtd)
 	}
 }
 
-/**
- * omap3_init_bch_tail - Build an oob layout for BCH ECC correction.
- * @mtd: MTD device structure
- */
-static int omap3_init_bch_tail(struct mtd_info *mtd)
-{
-	int i, steps, offset;
-	struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
-						   mtd);
-	struct nand_ecclayout *layout = &info->ecclayout;
-
-	/* build oob layout */
-	steps = mtd->writesize/info->nand.ecc.size;
-	layout->eccbytes = steps*info->nand.ecc.bytes;
-
-	/* do not bother creating special oob layouts for small page devices */
-	if (mtd->oobsize < 64) {
-		pr_err("BCH ecc is not supported on small page devices\n");
-		goto fail;
-	}
-
-	/* reserve 2 bytes for bad block marker */
-	if (layout->eccbytes+2 > mtd->oobsize) {
-		pr_err("no oob layout available for oobsize %d eccbytes %u\n",
-		       mtd->oobsize, layout->eccbytes);
-		goto fail;
-	}
-
-	/* ECC layout compatible with RBL for BCH8 */
-	if (info->is_elm_used && (info->nand.ecc.bytes == BCH8_SIZE))
-		offset = 2;
-	else
-		offset = mtd->oobsize - layout->eccbytes;
-
-	/* put ecc bytes at oob tail */
-	for (i = 0; i < layout->eccbytes; i++)
-		layout->eccpos[i] = offset + i;
-
-	if (info->is_elm_used && (info->nand.ecc.bytes == BCH8_SIZE))
-		layout->oobfree[0].offset = 2 + layout->eccbytes * steps;
-	else
-		layout->oobfree[0].offset = 2;
-
-	layout->oobfree[0].length = mtd->oobsize-2-layout->eccbytes;
-	info->nand.ecc.layout = layout;
-
-	if (!(info->nand.options & NAND_BUSWIDTH_16))
-		info->nand.badblock_pattern = &bb_descrip_flashbased;
-	return 0;
-fail:
-	omap3_free_bch(mtd);
-	return -1;
-}
-
 #else
-static int omap3_init_bch_tail(struct mtd_info *mtd)
-{
-	return -1;
-}
+
 static void omap3_free_bch(struct mtd_info *mtd)
 {
 }
@@ -1756,8 +1688,9 @@ static int omap_nand_probe(struct platform_device *pdev)
 	struct omap_nand_platform_data	*pdata;
 	struct mtd_info			*mtd;
 	struct nand_chip		*nand_chip;
+	struct nand_ecclayout		*ecclayout;
 	int				err;
-	int				i, offset;
+	int				i;
 	dma_cap_mask_t			mask;
 	unsigned			sig;
 	struct resource			*res;
@@ -1840,6 +1773,13 @@ static int omap_nand_probe(struct platform_device *pdev)
 		goto out_release_mem_region;
 	}
 
+	/* check for small page devices */
+	if ((mtd->oobsize < 64) && (pdata->ecc_opt != OMAP_ECC_HAM1_CODE_HW)) {
+		pr_err("small page devices are not supported\n");
+		err = -EINVAL;
+		goto out_release_mem_region;
+	}
+
 	/* re-populate low-level callbacks based on xfer modes */
 	switch (pdata->xfer_type) {
 	case NAND_OMAP_PREFETCH_POLLED:
@@ -1931,6 +1871,8 @@ static int omap_nand_probe(struct platform_device *pdev)
 	}
 
 	/* populate MTD interface based on ECC scheme */
+	nand_chip->ecc.layout	= &omap_oobinfo;
+	ecclayout		= &omap_oobinfo;
 	switch (pdata->ecc_opt) {
 	case OMAP_ECC_HAM1_CODE_HW:
 		pr_info("nand: using OMAP_ECC_HAM1_CODE_HW\n");
@@ -1941,6 +1883,16 @@ static int omap_nand_probe(struct platform_device *pdev)
 		nand_chip->ecc.calculate        = omap_calculate_ecc;
 		nand_chip->ecc.hwctl            = omap_enable_hwecc;
 		nand_chip->ecc.correct          = omap_correct_data;
+		/* define ECC layout */
+		ecclayout->eccbytes		= nand_chip->ecc.bytes *
+							(mtd->writesize /
+							nand_chip->ecc.size);
+		if (nand_chip->options & NAND_BUSWIDTH_16)
+			ecclayout->eccpos[0]	= BADBLOCK_MARKER_LENGTH;
+		else
+			ecclayout->eccpos[0]	= 1;
+		ecclayout->oobfree->offset	= ecclayout->eccpos[0] +
+							ecclayout->eccbytes;
 		break;
 
 	case OMAP_ECC_BCH4_CODE_HW_DETECTION_SW:
@@ -1953,6 +1905,13 @@ static int omap_nand_probe(struct platform_device *pdev)
 		nand_chip->ecc.hwctl		= omap3_enable_hwecc_bch;
 		nand_chip->ecc.correct		= omap3_correct_data_bch;
 		nand_chip->ecc.calculate	= omap3_calculate_ecc_bch4;
+		/* define ECC layout */
+		ecclayout->eccbytes		= nand_chip->ecc.bytes *
+							(mtd->writesize /
+							nand_chip->ecc.size);
+		ecclayout->eccpos[0]		= BADBLOCK_MARKER_LENGTH;
+		ecclayout->oobfree->offset	= ecclayout->eccpos[0] +
+							ecclayout->eccbytes;
 		/* software bch library is used for locating errors */
 		info->bch = init_bch(nand_chip->ecc.bytes,
 					nand_chip->ecc.strength,
@@ -1981,6 +1940,13 @@ static int omap_nand_probe(struct platform_device *pdev)
 		nand_chip->ecc.calculate	= omap3_calculate_ecc_bch;
 		nand_chip->ecc.read_page	= omap_read_page_bch;
 		nand_chip->ecc.write_page	= omap_write_page_bch;
+		/* define ECC layout */
+		ecclayout->eccbytes		= nand_chip->ecc.bytes *
+							(mtd->writesize /
+							nand_chip->ecc.size);
+		ecclayout->eccpos[0]		= BADBLOCK_MARKER_LENGTH;
+		ecclayout->oobfree->offset	= ecclayout->eccpos[0] +
+							ecclayout->eccbytes;
 		/* This ECC scheme requires ELM H/W block */
 		if (is_elm_present(info, pdata->elm_of_node, BCH4_ECC) < 0) {
 			pr_err("nand: error: could not initialize ELM\n");
@@ -2004,6 +1970,13 @@ static int omap_nand_probe(struct platform_device *pdev)
 		nand_chip->ecc.hwctl		= omap3_enable_hwecc_bch;
 		nand_chip->ecc.correct		= omap3_correct_data_bch;
 		nand_chip->ecc.calculate	= omap3_calculate_ecc_bch8;
+		/* define ECC layout */
+		ecclayout->eccbytes		= nand_chip->ecc.bytes *
+							(mtd->writesize /
+							nand_chip->ecc.size);
+		ecclayout->eccpos[0]		= BADBLOCK_MARKER_LENGTH;
+		ecclayout->oobfree->offset	= ecclayout->eccpos[0] +
+							ecclayout->eccbytes;
 		/* software bch library is used for locating errors */
 		info->bch = init_bch(nand_chip->ecc.bytes,
 					nand_chip->ecc.strength,
@@ -2038,6 +2011,13 @@ static int omap_nand_probe(struct platform_device *pdev)
 			pr_err("nand: error: could not initialize ELM\n");
 			goto out_release_mem_region;
 		}
+		/* define ECC layout */
+		ecclayout->eccbytes		= nand_chip->ecc.bytes *
+							(mtd->writesize /
+							nand_chip->ecc.size);
+		ecclayout->eccpos[0]		= BADBLOCK_MARKER_LENGTH;
+		ecclayout->oobfree->offset	= ecclayout->eccpos[0] +
+							ecclayout->eccbytes;
 		break;
 #else
 		pr_err("nand: error: CONFIG_MTD_NAND_OMAP_BCH not enabled\n");
@@ -2051,34 +2031,17 @@ static int omap_nand_probe(struct platform_device *pdev)
 		goto out_release_mem_region;
 	}
 
-	/* rom code layout */
-	if (pdata->ecc_opt == OMAP_ECC_HAM1_CODE_HW) {
-
-		if (nand_chip->options & NAND_BUSWIDTH_16) {
-			offset = 2;
-		} else {
-			offset = 1;
-			nand_chip->badblock_pattern = &bb_descrip_flashbased;
-		}
-		omap_oobinfo.eccbytes = 3 * (mtd->writesize / 512);
-		for (i = 0; i < omap_oobinfo.eccbytes; i++)
-			omap_oobinfo.eccpos[i] = i+offset;
-
-		omap_oobinfo.oobfree->offset = offset + omap_oobinfo.eccbytes;
-		omap_oobinfo.oobfree->length = mtd->oobsize -
-					(offset + omap_oobinfo.eccbytes);
-
-		nand_chip->ecc.layout = &omap_oobinfo;
-	} else if ((pdata->ecc_opt == OMAP_ECC_BCH4_CODE_HW) ||
-		   (pdata->ecc_opt == OMAP_ECC_BCH4_CODE_HW_DETECTION_SW) ||
-		   (pdata->ecc_opt == OMAP_ECC_BCH8_CODE_HW_DETECTION_SW) ||
-		   (pdata->ecc_opt == OMAP_ECC_BCH8_CODE_HW)) {
-		/* build OOB layout for BCH ECC correction */
-		err = omap3_init_bch_tail(mtd);
-		if (err) {
-			err = -EINVAL;
-			goto out_release_mem_region;
-		}
+	/* populate remaining ECC layout data */
+	ecclayout->oobfree->length = mtd->oobsize - (BADBLOCK_MARKER_LENGTH +
+							ecclayout->eccbytes);
+	for (i = 1; i < ecclayout->eccbytes; i++)
+		ecclayout->eccpos[i] = ecclayout->eccpos[0] + i;
+	/* check if NAND device's OOB is enough to store ECC signatures */
+	if (mtd->oobsize < (ecclayout->eccbytes + BADBLOCK_MARKER_LENGTH)) {
+		pr_err("not enough OOB bytes required = %d, available=%d\n",
+					   ecclayout->eccbytes, mtd->oobsize);
+		err = -EINVAL;
+		goto out_release_mem_region;
 	}
 
 	/* second phase scan */
-- 
cgit 


From 32d42a855a6f1445373f3d680e9125344aca294c Mon Sep 17 00:00:00 2001
From: Pekon Gupta <pekon@ti.com>
Date: Thu, 24 Oct 2013 18:20:23 +0530
Subject: mtd: nand: omap: use drivers/mtd/nand/nand_bch.c wrapper for BCH ECC
 instead of lib/bch.c

generic frame-work in mtd/nand/nand_bch.c is a wrapper above lib/bch.h which
encapsulates all control information specific to BCH ecc algorithm in software.
Thus this patch:
(1) replace omap specific implementations with equivalent wrapper in nand_bch.c
    so that generic code from nand_bch.c is re-used. like;
        omap3_correct_data_bch() -> nand_bch_correct_data()
        omap3_free_bch() -> nand_bch_free()
(2) replace direct calls to lib/bch.c with wrapper functions defined in nand_bch.c
	init_bch() -> nand_bch_init()

Signed-off-by: Pekon Gupta <pekon@ti.com>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/omap2.c | 96 +++++++++++-------------------------------------
 1 file changed, 22 insertions(+), 74 deletions(-)

diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index b6a08b23853b..93aa35c8260c 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -25,7 +25,7 @@
 #include <linux/of.h>
 #include <linux/of_device.h>
 
-#include <linux/bch.h>
+#include <linux/mtd/nand_bch.h>
 #include <linux/platform_data/elm.h>
 
 #include <linux/platform_data/mtd-nand-omap2.h>
@@ -140,7 +140,6 @@
 #define BCH_ECC_SIZE1		0x20	/* ecc_size1 = 32 */
 
 #define BADBLOCK_MARKER_LENGTH		2
-#define OMAP_ECC_BCH8_POLYNOMIAL	0x201b
 
 #ifdef CONFIG_MTD_NAND_OMAP_BCH
 static u_char bch8_vector[] = {0xf3, 0xdb, 0x14, 0x16, 0x8b, 0xd2, 0xbe, 0xcc,
@@ -173,7 +172,6 @@ struct omap_nand_info {
 	int					buf_len;
 	struct gpmc_nand_regs		reg;
 	/* fields specific for BCHx_HW ECC scheme */
-	struct bch_control             *bch;
 	bool				is_elm_used;
 	struct device			*elm_dev;
 	struct device_node		*of_node;
@@ -1507,43 +1505,7 @@ static int omap_elm_correct_data(struct mtd_info *mtd, u_char *data,
 
 	return stat;
 }
-#endif /* CONFIG_MTD_NAND_OMAP_BCH */
 
-#ifdef CONFIG_MTD_NAND_ECC_BCH
-/**
- * omap3_correct_data_bch - Decode received data and correct errors
- * @mtd: MTD device structure
- * @data: page data
- * @read_ecc: ecc read from nand flash
- * @calc_ecc: ecc read from HW ECC registers
- */
-static int omap3_correct_data_bch(struct mtd_info *mtd, u_char *data,
-				  u_char *read_ecc, u_char *calc_ecc)
-{
-	int i, count;
-	/* cannot correct more than 8 errors */
-	unsigned int errloc[8];
-	struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
-						   mtd);
-
-	count = decode_bch(info->bch, NULL, 512, read_ecc, calc_ecc, NULL,
-			   errloc);
-	if (count > 0) {
-		/* correct errors */
-		for (i = 0; i < count; i++) {
-			/* correct data only, not ecc bytes */
-			if (errloc[i] < 8*512)
-				data[errloc[i]/8] ^= 1 << (errloc[i] & 7);
-			pr_debug("corrected bitflip %u\n", errloc[i]);
-		}
-	} else if (count < 0) {
-		pr_err("ecc unrecoverable error\n");
-	}
-	return count;
-}
-#endif /* CONFIG_MTD_NAND_ECC_BCH */
-
-#ifdef CONFIG_MTD_NAND_OMAP_BCH
 /**
  * omap_write_page_bch - BCH ecc based write page function for entire page
  * @mtd:		mtd info structure
@@ -1660,28 +1622,6 @@ static int is_elm_present(struct omap_nand_info *info,
 }
 #endif /* CONFIG_MTD_NAND_ECC_BCH */
 
-#ifdef CONFIG_MTD_NAND_ECC_BCH
-/**
- * omap3_free_bch - Release BCH ecc resources
- * @mtd: MTD device structure
- */
-static void omap3_free_bch(struct mtd_info *mtd)
-{
-	struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
-						   mtd);
-	if (info->bch) {
-		free_bch(info->bch);
-		info->bch = NULL;
-	}
-}
-
-#else
-
-static void omap3_free_bch(struct mtd_info *mtd)
-{
-}
-#endif /* CONFIG_MTD_NAND_ECC_BCH */
-
 static int omap_nand_probe(struct platform_device *pdev)
 {
 	struct omap_nand_info		*info;
@@ -1714,13 +1654,13 @@ static int omap_nand_probe(struct platform_device *pdev)
 	info->pdev		= pdev;
 	info->gpmc_cs		= pdata->cs;
 	info->reg		= pdata->reg;
-	info->bch		= NULL;
 	info->of_node		= pdata->of_node;
 	mtd			= &info->mtd;
 	mtd->priv		= &info->nand;
 	mtd->name		= dev_name(&pdev->dev);
 	mtd->owner		= THIS_MODULE;
 	nand_chip		= &info->nand;
+	nand_chip->ecc.priv	= NULL;
 	nand_chip->options	|= NAND_SKIP_BBTSCAN;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -1903,7 +1843,7 @@ static int omap_nand_probe(struct platform_device *pdev)
 		nand_chip->ecc.bytes		= 7;
 		nand_chip->ecc.strength		= 4;
 		nand_chip->ecc.hwctl		= omap3_enable_hwecc_bch;
-		nand_chip->ecc.correct		= omap3_correct_data_bch;
+		nand_chip->ecc.correct		= nand_bch_correct_data;
 		nand_chip->ecc.calculate	= omap3_calculate_ecc_bch4;
 		/* define ECC layout */
 		ecclayout->eccbytes		= nand_chip->ecc.bytes *
@@ -1913,10 +1853,11 @@ static int omap_nand_probe(struct platform_device *pdev)
 		ecclayout->oobfree->offset	= ecclayout->eccpos[0] +
 							ecclayout->eccbytes;
 		/* software bch library is used for locating errors */
-		info->bch = init_bch(nand_chip->ecc.bytes,
-					nand_chip->ecc.strength,
-					OMAP_ECC_BCH8_POLYNOMIAL);
-		if (!info->bch) {
+		nand_chip->ecc.priv		= nand_bch_init(mtd,
+							nand_chip->ecc.size,
+							nand_chip->ecc.bytes,
+							&nand_chip->ecc.layout);
+		if (!nand_chip->ecc.priv) {
 			pr_err("nand: error: unable to use s/w BCH library\n");
 			err = -EINVAL;
 		}
@@ -1968,7 +1909,7 @@ static int omap_nand_probe(struct platform_device *pdev)
 		nand_chip->ecc.bytes		= 13;
 		nand_chip->ecc.strength		= 8;
 		nand_chip->ecc.hwctl		= omap3_enable_hwecc_bch;
-		nand_chip->ecc.correct		= omap3_correct_data_bch;
+		nand_chip->ecc.correct		= nand_bch_correct_data;
 		nand_chip->ecc.calculate	= omap3_calculate_ecc_bch8;
 		/* define ECC layout */
 		ecclayout->eccbytes		= nand_chip->ecc.bytes *
@@ -1978,10 +1919,11 @@ static int omap_nand_probe(struct platform_device *pdev)
 		ecclayout->oobfree->offset	= ecclayout->eccpos[0] +
 							ecclayout->eccbytes;
 		/* software bch library is used for locating errors */
-		info->bch = init_bch(nand_chip->ecc.bytes,
-					nand_chip->ecc.strength,
-					OMAP_ECC_BCH8_POLYNOMIAL);
-		if (!info->bch) {
+		nand_chip->ecc.priv		= nand_bch_init(mtd,
+							nand_chip->ecc.size,
+							nand_chip->ecc.bytes,
+							&nand_chip->ecc.layout);
+		if (!nand_chip->ecc.priv) {
 			pr_err("nand: error: unable to use s/w BCH library\n");
 			err = -EINVAL;
 			goto out_release_mem_region;
@@ -2067,7 +2009,10 @@ out_release_mem_region:
 		free_irq(info->gpmc_irq_fifo, info);
 	release_mem_region(info->phys_base, info->mem_size);
 out_free_info:
-	omap3_free_bch(mtd);
+	if (nand_chip->ecc.priv) {
+		nand_bch_free(nand_chip->ecc.priv);
+		nand_chip->ecc.priv = NULL;
+	}
 	kfree(info);
 
 	return err;
@@ -2079,7 +2024,10 @@ static int omap_nand_remove(struct platform_device *pdev)
 	struct nand_chip *nand_chip = mtd->priv;
 	struct omap_nand_info *info = container_of(mtd, struct omap_nand_info,
 							mtd);
-	omap3_free_bch(mtd);
+	if (nand_chip->ecc.priv) {
+		nand_bch_free(nand_chip->ecc.priv);
+		nand_chip->ecc.priv = NULL;
+	}
 
 	if (info->dma)
 		dma_release_channel(info->dma);
-- 
cgit 


From 70ba6d71ddcde8aa5a6e2b7f616e77b4bb96b984 Mon Sep 17 00:00:00 2001
From: Pekon Gupta <pekon@ti.com>
Date: Thu, 24 Oct 2013 18:20:25 +0530
Subject: mtd: nand: omap: updated devm_xx for all resource allocation and free
 calls

"Managed Device Resource" or devm_xx calls takes care of automatic freeing
of the resource in case of:
- failure during driver probe
- failure during resource allocation
- detaching or unloading of driver module (rmmod)
Reference: Documentation/driver-model/devres.txt

Though OMAP NAND driver handles freeing of resource allocation in most of
the cases, but using devm_xx provides more clean and effortless approach
to handle all such cases.

- simplifies label for exiting probe during error
  s/out_release_mem_region/return_error

Signed-off-by: Pekon Gupta <pekon@ti.com>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/omap2.c | 85 ++++++++++++++++++++----------------------------
 1 file changed, 35 insertions(+), 50 deletions(-)

diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index 93aa35c8260c..ec40b8d10201 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -1642,7 +1642,8 @@ static int omap_nand_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	info = kzalloc(sizeof(struct omap_nand_info), GFP_KERNEL);
+	info = devm_kzalloc(&pdev->dev, sizeof(struct omap_nand_info),
+				GFP_KERNEL);
 	if (!info)
 		return -ENOMEM;
 
@@ -1667,22 +1668,23 @@ static int omap_nand_probe(struct platform_device *pdev)
 	if (res == NULL) {
 		err = -EINVAL;
 		dev_err(&pdev->dev, "error getting memory resource\n");
-		goto out_free_info;
+		goto return_error;
 	}
 
 	info->phys_base = res->start;
 	info->mem_size = resource_size(res);
 
-	if (!request_mem_region(info->phys_base, info->mem_size,
-				pdev->dev.driver->name)) {
+	if (!devm_request_mem_region(&pdev->dev, info->phys_base,
+				info->mem_size,	pdev->dev.driver->name)) {
 		err = -EBUSY;
-		goto out_free_info;
+		goto return_error;
 	}
 
-	nand_chip->IO_ADDR_R = ioremap(info->phys_base, info->mem_size);
+	nand_chip->IO_ADDR_R = devm_ioremap(&pdev->dev, info->phys_base,
+						info->mem_size);
 	if (!nand_chip->IO_ADDR_R) {
 		err = -ENOMEM;
-		goto out_release_mem_region;
+		goto return_error;
 	}
 
 	nand_chip->controller = &info->controller;
@@ -1710,14 +1712,14 @@ static int omap_nand_probe(struct platform_device *pdev)
 	if (nand_scan_ident(mtd, 1, NULL)) {
 		pr_err("nand device scan failed, may be bus-width mismatch\n");
 		err = -ENXIO;
-		goto out_release_mem_region;
+		goto return_error;
 	}
 
 	/* check for small page devices */
 	if ((mtd->oobsize < 64) && (pdata->ecc_opt != OMAP_ECC_HAM1_CODE_HW)) {
 		pr_err("small page devices are not supported\n");
 		err = -EINVAL;
-		goto out_release_mem_region;
+		goto return_error;
 	}
 
 	/* re-populate low-level callbacks based on xfer modes */
@@ -1745,7 +1747,7 @@ static int omap_nand_probe(struct platform_device *pdev)
 		if (!info->dma) {
 			dev_err(&pdev->dev, "DMA engine request failed\n");
 			err = -ENXIO;
-			goto out_release_mem_region;
+			goto return_error;
 		} else {
 			struct dma_slave_config cfg;
 
@@ -1760,7 +1762,7 @@ static int omap_nand_probe(struct platform_device *pdev)
 			if (err) {
 				dev_err(&pdev->dev, "DMA engine slave config failed: %d\n",
 					err);
-				goto out_release_mem_region;
+				goto return_error;
 			}
 			nand_chip->read_buf   = omap_read_buf_dma_pref;
 			nand_chip->write_buf  = omap_write_buf_dma_pref;
@@ -1772,30 +1774,32 @@ static int omap_nand_probe(struct platform_device *pdev)
 		if (info->gpmc_irq_fifo <= 0) {
 			dev_err(&pdev->dev, "error getting fifo irq\n");
 			err = -ENODEV;
-			goto out_release_mem_region;
+			goto return_error;
 		}
-		err = request_irq(info->gpmc_irq_fifo,	omap_nand_irq,
-					IRQF_SHARED, "gpmc-nand-fifo", info);
+		err = devm_request_irq(&pdev->dev, info->gpmc_irq_fifo,
+					omap_nand_irq, IRQF_SHARED,
+					"gpmc-nand-fifo", info);
 		if (err) {
 			dev_err(&pdev->dev, "requesting irq(%d) error:%d",
 						info->gpmc_irq_fifo, err);
 			info->gpmc_irq_fifo = 0;
-			goto out_release_mem_region;
+			goto return_error;
 		}
 
 		info->gpmc_irq_count = platform_get_irq(pdev, 1);
 		if (info->gpmc_irq_count <= 0) {
 			dev_err(&pdev->dev, "error getting count irq\n");
 			err = -ENODEV;
-			goto out_release_mem_region;
+			goto return_error;
 		}
-		err = request_irq(info->gpmc_irq_count,	omap_nand_irq,
-					IRQF_SHARED, "gpmc-nand-count", info);
+		err = devm_request_irq(&pdev->dev, info->gpmc_irq_count,
+					omap_nand_irq, IRQF_SHARED,
+					"gpmc-nand-count", info);
 		if (err) {
 			dev_err(&pdev->dev, "requesting irq(%d) error:%d",
 						info->gpmc_irq_count, err);
 			info->gpmc_irq_count = 0;
-			goto out_release_mem_region;
+			goto return_error;
 		}
 
 		nand_chip->read_buf  = omap_read_buf_irq_pref;
@@ -1807,7 +1811,7 @@ static int omap_nand_probe(struct platform_device *pdev)
 		dev_err(&pdev->dev,
 			"xfer_type(%d) not supported!\n", pdata->xfer_type);
 		err = -EINVAL;
-		goto out_release_mem_region;
+		goto return_error;
 	}
 
 	/* populate MTD interface based on ECC scheme */
@@ -1865,7 +1869,7 @@ static int omap_nand_probe(struct platform_device *pdev)
 #else
 		pr_err("nand: error: CONFIG_MTD_NAND_ECC_BCH not enabled\n");
 		err = -EINVAL;
-		goto out_release_mem_region;
+		goto return_error;
 #endif
 
 	case OMAP_ECC_BCH4_CODE_HW:
@@ -1892,13 +1896,13 @@ static int omap_nand_probe(struct platform_device *pdev)
 		if (is_elm_present(info, pdata->elm_of_node, BCH4_ECC) < 0) {
 			pr_err("nand: error: could not initialize ELM\n");
 			err = -ENODEV;
-			goto out_release_mem_region;
+			goto return_error;
 		}
 		break;
 #else
 		pr_err("nand: error: CONFIG_MTD_NAND_OMAP_BCH not enabled\n");
 		err = -EINVAL;
-		goto out_release_mem_region;
+		goto return_error;
 #endif
 
 	case OMAP_ECC_BCH8_CODE_HW_DETECTION_SW:
@@ -1926,13 +1930,13 @@ static int omap_nand_probe(struct platform_device *pdev)
 		if (!nand_chip->ecc.priv) {
 			pr_err("nand: error: unable to use s/w BCH library\n");
 			err = -EINVAL;
-			goto out_release_mem_region;
+			goto return_error;
 		}
 		break;
 #else
 		pr_err("nand: error: CONFIG_MTD_NAND_ECC_BCH not enabled\n");
 		err = -EINVAL;
-		goto out_release_mem_region;
+		goto return_error;
 #endif
 
 	case OMAP_ECC_BCH8_CODE_HW:
@@ -1951,7 +1955,7 @@ static int omap_nand_probe(struct platform_device *pdev)
 		/* This ECC scheme requires ELM H/W block */
 		if (is_elm_present(info, pdata->elm_of_node, BCH8_ECC) < 0) {
 			pr_err("nand: error: could not initialize ELM\n");
-			goto out_release_mem_region;
+			goto return_error;
 		}
 		/* define ECC layout */
 		ecclayout->eccbytes		= nand_chip->ecc.bytes *
@@ -1964,13 +1968,13 @@ static int omap_nand_probe(struct platform_device *pdev)
 #else
 		pr_err("nand: error: CONFIG_MTD_NAND_OMAP_BCH not enabled\n");
 		err = -EINVAL;
-		goto out_release_mem_region;
+		goto return_error;
 #endif
 
 	default:
 		pr_err("nand: error: invalid or unsupported ECC scheme\n");
 		err = -EINVAL;
-		goto out_release_mem_region;
+		goto return_error;
 	}
 
 	/* populate remaining ECC layout data */
@@ -1983,13 +1987,13 @@ static int omap_nand_probe(struct platform_device *pdev)
 		pr_err("not enough OOB bytes required = %d, available=%d\n",
 					   ecclayout->eccbytes, mtd->oobsize);
 		err = -EINVAL;
-		goto out_release_mem_region;
+		goto return_error;
 	}
 
 	/* second phase scan */
 	if (nand_scan_tail(mtd)) {
 		err = -ENXIO;
-		goto out_release_mem_region;
+		goto return_error;
 	}
 
 	ppdata.of_node = pdata->of_node;
@@ -2000,21 +2004,13 @@ static int omap_nand_probe(struct platform_device *pdev)
 
 	return 0;
 
-out_release_mem_region:
+return_error:
 	if (info->dma)
 		dma_release_channel(info->dma);
-	if (info->gpmc_irq_count > 0)
-		free_irq(info->gpmc_irq_count, info);
-	if (info->gpmc_irq_fifo > 0)
-		free_irq(info->gpmc_irq_fifo, info);
-	release_mem_region(info->phys_base, info->mem_size);
-out_free_info:
 	if (nand_chip->ecc.priv) {
 		nand_bch_free(nand_chip->ecc.priv);
 		nand_chip->ecc.priv = NULL;
 	}
-	kfree(info);
-
 	return err;
 }
 
@@ -2028,20 +2024,9 @@ static int omap_nand_remove(struct platform_device *pdev)
 		nand_bch_free(nand_chip->ecc.priv);
 		nand_chip->ecc.priv = NULL;
 	}
-
 	if (info->dma)
 		dma_release_channel(info->dma);
-
-	if (info->gpmc_irq_count > 0)
-		free_irq(info->gpmc_irq_count, info);
-	if (info->gpmc_irq_fifo > 0)
-		free_irq(info->gpmc_irq_fifo, info);
-
-	/* Release NAND device, its internal structures and partitions */
 	nand_release(mtd);
-	iounmap(nand_chip->IO_ADDR_R);
-	release_mem_region(info->phys_base, info->mem_size);
-	kfree(info);
 	return 0;
 }
 
-- 
cgit 


From 90c9c955db75f4f85db1f6b4fe17fbc3bcd513b3 Mon Sep 17 00:00:00 2001
From: Pekon Gupta <pekon@ti.com>
Date: Thu, 24 Oct 2013 18:20:26 +0530
Subject: mtd: nand: omap: remove selection of BCH ecc-scheme via KConfig

With OMAP NAND driver updates, selection of ecc-scheme:
*DT enabled kernel*
 	depends on ti,nand-ecc-opt and ti,elm-id DT bindings.
*Non DT enabled kernel*
	depends on elm_dev and ecc-scheme passed along with platform-data
	from board file.

So, selection of ecc-scheme (BCH8 or BCH4) from KConfig can be removed

Signed-off-by: Pekon Gupta <pekon@ti.com>
Tested-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/Kconfig | 40 ++++++----------------------------------
 1 file changed, 6 insertions(+), 34 deletions(-)

diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index d88529841d3f..93ae6a6d94f7 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -96,43 +96,15 @@ config MTD_NAND_OMAP2
 
 config MTD_NAND_OMAP_BCH
 	depends on MTD_NAND && MTD_NAND_OMAP2 && ARCH_OMAP3
-	tristate "Enable support for hardware BCH error correction"
+	tristate "Support hardware based BCH error correction"
 	default n
 	select BCH
-	select BCH_CONST_PARAMS
 	help
-	 Support for hardware BCH error correction.
-
-choice
-	prompt "BCH error correction capability"
-	depends on MTD_NAND_OMAP_BCH
-
-config MTD_NAND_OMAP_BCH8
-	bool "8 bits / 512 bytes (recommended)"
-	help
-	 Support correcting up to 8 bitflips per 512-byte block.
-	 This will use 13 bytes of spare area per 512 bytes of page data.
-	 This is the recommended mode, as 4-bit mode does not work
-	 on some OMAP3 revisions, due to a hardware bug.
-
-config MTD_NAND_OMAP_BCH4
-	bool "4 bits / 512 bytes"
-	help
-	 Support correcting up to 4 bitflips per 512-byte block.
-	 This will use 7 bytes of spare area per 512 bytes of page data.
-	 Note that this mode does not work on some OMAP3 revisions, due to a
-	 hardware bug. Please check your OMAP datasheet before selecting this
-	 mode.
-
-endchoice
-
-if MTD_NAND_OMAP_BCH
-config BCH_CONST_M
-	default 13
-config BCH_CONST_T
-	default 4 if MTD_NAND_OMAP_BCH4
-	default 8 if MTD_NAND_OMAP_BCH8
-endif
+	  This config enables the ELM hardware engine, which can be used to
+	  locate and correct errors when using BCH ECC scheme. This offloads
+	  the cpu from doing ECC error searching and correction. However some
+	  legacy OMAP families like OMAP2xxx, OMAP3xxx do not have ELM engine
+	  so they should not enable this config symbol.
 
 config MTD_NAND_IDS
 	tristate
-- 
cgit 


From 5ff14821a37c92d139181c3fbc939afa993b959f Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Wed, 23 Oct 2013 13:38:09 -0700
Subject: mtd: m25p80: add support for Macronix mx25l3255e

A new 32Mbit SPI NOR flash from Macronix. Nothing special.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Marek Vasut <marex@denx.de>
---
 drivers/mtd/devices/m25p80.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index a1dc49a6f84f..58978892c321 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -769,6 +769,7 @@ static const struct spi_device_id m25p_ids[] = {
 	{ "mx25l8005",   INFO(0xc22014, 0, 64 * 1024,  16, 0) },
 	{ "mx25l1606e",  INFO(0xc22015, 0, 64 * 1024,  32, SECT_4K) },
 	{ "mx25l3205d",  INFO(0xc22016, 0, 64 * 1024,  64, 0) },
+	{ "mx25l3255e",  INFO(0xc29e16, 0, 64 * 1024,  64, SECT_4K) },
 	{ "mx25l6405d",  INFO(0xc22017, 0, 64 * 1024, 128, 0) },
 	{ "mx25l12805d", INFO(0xc22018, 0, 64 * 1024, 256, 0) },
 	{ "mx25l12855e", INFO(0xc22618, 0, 64 * 1024, 256, 0) },
-- 
cgit 


From ca5295f48b25ee58fd9de8830fe4016d1d45eb0a Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 30 Oct 2013 13:34:22 +0800
Subject: mtd: remove duplicated include from mtdcore.c

Remove duplicated include.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/mtdcore.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index 7189089d87e3..92311a56939f 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -37,7 +37,6 @@
 #include <linux/backing-dev.h>
 #include <linux/gfp.h>
 #include <linux/slab.h>
-#include <linux/major.h>
 
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
-- 
cgit 


From d367e37e004ca6847d5503781d218a266e8bc1ef Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 18 Oct 2013 16:16:35 +0530
Subject: mtd: mxc_nand: Include linux/of.h header

'of_match_ptr' is defined in linux/of.h. Include it explicitly to
avoid build breakage in the future.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/mxc_nand.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index ce8242b6c3e7..103775525c53 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -32,6 +32,7 @@
 #include <linux/io.h>
 #include <linux/irq.h>
 #include <linux/completion.h>
+#include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/of_mtd.h>
 
-- 
cgit 


From 9650b9bec61d861b6b59d09eb389410b05d196e4 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Sun, 27 Oct 2013 15:42:12 -0700
Subject: mtd: m25p80: fixup device removal failure path

Device removal should fail if MTD unregistration fails.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Marek Vasut <marex@denx.de>
---
 drivers/mtd/devices/m25p80.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 58978892c321..7eda71dbc183 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -1125,9 +1125,7 @@ static int m25p_remove(struct spi_device *spi)
 	struct m25p	*flash = spi_get_drvdata(spi);
 
 	/* Clean up MTD stuff. */
-	mtd_device_unregister(&flash->mtd);
-
-	return 0;
+	return mtd_device_unregister(&flash->mtd);
 }
 
 
-- 
cgit 


From 5961ad2cb4dd14933889f5219e0d8505669d752d Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Wed, 30 Oct 2013 00:41:30 -0400
Subject: mtd: nand_bbt: kill NAND_BBT_SCANALLPAGES

Now that the last user of NAND_BBT_SCANALLPAGES has been removed, let's
kill this peculiar BBT feature flag.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Reviewed-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
---
 Documentation/DocBook/mtdnand.tmpl |  2 --
 drivers/mtd/nand/nand_bbt.c        | 37 +++----------------------------------
 include/linux/mtd/bbm.h            |  2 --
 3 files changed, 3 insertions(+), 38 deletions(-)

diff --git a/Documentation/DocBook/mtdnand.tmpl b/Documentation/DocBook/mtdnand.tmpl
index a248f42a121e..cd11926e07c7 100644
--- a/Documentation/DocBook/mtdnand.tmpl
+++ b/Documentation/DocBook/mtdnand.tmpl
@@ -1222,8 +1222,6 @@ in this page</entry>
 #define NAND_BBT_VERSION	0x00000100
 /* Create a bbt if none axists */
 #define NAND_BBT_CREATE		0x00000200
-/* Search good / bad pattern through all pages of a block */
-#define NAND_BBT_SCANALLPAGES	0x00000400
 /* Write bbt if neccecary */
 #define NAND_BBT_WRITE		0x00001000
 /* Read and write back block contents when writing bbt */
diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index c75b6a7c6ea4..c0615d1526f9 100644
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -412,25 +412,6 @@ static void read_abs_bbts(struct mtd_info *mtd, uint8_t *buf,
 	}
 }
 
-/* Scan a given block full */
-static int scan_block_full(struct mtd_info *mtd, struct nand_bbt_descr *bd,
-			   loff_t offs, uint8_t *buf, size_t readlen,
-			   int scanlen, int numpages)
-{
-	int ret, j;
-
-	ret = scan_read_oob(mtd, buf, offs, readlen);
-	/* Ignore ECC errors when checking for BBM */
-	if (ret && !mtd_is_bitflip_or_eccerr(ret))
-		return ret;
-
-	for (j = 0; j < numpages; j++, buf += scanlen) {
-		if (check_pattern(buf, scanlen, mtd->writesize, bd))
-			return 1;
-	}
-	return 0;
-}
-
 /* Scan a given block partially */
 static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd,
 			   loff_t offs, uint8_t *buf, int numpages)
@@ -477,24 +458,17 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
 	struct nand_bbt_descr *bd, int chip)
 {
 	struct nand_chip *this = mtd->priv;
-	int i, numblocks, numpages, scanlen;
+	int i, numblocks, numpages;
 	int startblock;
 	loff_t from;
-	size_t readlen;
 
 	pr_info("Scanning device for bad blocks\n");
 
-	if (bd->options & NAND_BBT_SCANALLPAGES)
-		numpages = 1 << (this->bbt_erase_shift - this->page_shift);
-	else if (bd->options & NAND_BBT_SCAN2NDPAGE)
+	if (bd->options & NAND_BBT_SCAN2NDPAGE)
 		numpages = 2;
 	else
 		numpages = 1;
 
-	/* We need only read few bytes from the OOB area */
-	scanlen = 0;
-	readlen = bd->len;
-
 	if (chip == -1) {
 		numblocks = mtd->size >> this->bbt_erase_shift;
 		startblock = 0;
@@ -519,12 +493,7 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf,
 
 		BUG_ON(bd->options & NAND_BBT_NO_OOB);
 
-		if (bd->options & NAND_BBT_SCANALLPAGES)
-			ret = scan_block_full(mtd, bd, from, buf, readlen,
-					      scanlen, numpages);
-		else
-			ret = scan_block_fast(mtd, bd, from, buf, numpages);
-
+		ret = scan_block_fast(mtd, bd, from, buf, numpages);
 		if (ret < 0)
 			return ret;
 
diff --git a/include/linux/mtd/bbm.h b/include/linux/mtd/bbm.h
index 95fc482cef36..36bb6a503f19 100644
--- a/include/linux/mtd/bbm.h
+++ b/include/linux/mtd/bbm.h
@@ -91,8 +91,6 @@ struct nand_bbt_descr {
  * with NAND_BBT_CREATE.
  */
 #define NAND_BBT_CREATE_EMPTY	0x00000400
-/* Search good / bad pattern through all pages of a block */
-#define NAND_BBT_SCANALLPAGES	0x00000800
 /* Write bbt if neccecary */
 #define NAND_BBT_WRITE		0x00002000
 /* Read and write back block contents when writing bbt */
-- 
cgit 


From 9211439b8a933a624d770113d0e0aa742db2ec67 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 1 Nov 2013 08:16:18 +0800
Subject: mtd: nand: omap: fix error return code in omap_nand_probe()

Fix to return a negative error code from the error handling case instead
of 0, to more closely match the rest of this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Pekon Gupta <pekon@ti.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/omap2.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index ec40b8d10201..f77725009907 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -1953,7 +1953,8 @@ static int omap_nand_probe(struct platform_device *pdev)
 		nand_chip->ecc.read_page	= omap_read_page_bch;
 		nand_chip->ecc.write_page	= omap_write_page_bch;
 		/* This ECC scheme requires ELM H/W block */
-		if (is_elm_present(info, pdata->elm_of_node, BCH8_ECC) < 0) {
+		err = is_elm_present(info, pdata->elm_of_node, BCH8_ECC);
+		if (err < 0) {
 			pr_err("nand: error: could not initialize ELM\n");
 			goto return_error;
 		}
-- 
cgit 


From c1fcbaa57a9fe6337b2ab718255d3f2d157efc1c Mon Sep 17 00:00:00 2001
From: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Date: Wed, 6 Nov 2013 15:57:17 +0800
Subject: smsc: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO

This patch fixes coccinelle error regarding usage of IS_ERR and
PTR_ERR instead of PTR_ERR_OR_ZERO.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/smsc/smc9194.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/smsc/smc9194.c b/drivers/net/ethernet/smsc/smc9194.c
index 51aa9cf3a3e7..4092fed47e2f 100644
--- a/drivers/net/ethernet/smsc/smc9194.c
+++ b/drivers/net/ethernet/smsc/smc9194.c
@@ -1569,9 +1569,7 @@ int __init init_module(void)
 
 	/* copy the parameters from insmod into the device structure */
 	devSMC9194 = smc_init(-1);
-	if (IS_ERR(devSMC9194))
-		return PTR_ERR(devSMC9194);
-	return 0;
+	return PTR_ERR_OR_ZERO(devSMC9194);
 }
 
 void __exit cleanup_module(void)
-- 
cgit 


From 17102f8be41699525cfeeab02adbaf969b156731 Mon Sep 17 00:00:00 2001
From: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Date: Wed, 6 Nov 2013 15:58:13 +0800
Subject: net:drivers/net: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO

This patch fixes coccinelle error regarding usage of IS_ERR and
PTR_ERR instead of PTR_ERR_OR_ZERO.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/i825xx/82596.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/i825xx/82596.c b/drivers/net/ethernet/i825xx/82596.c
index a15877affc9b..7ce6379fd1a3 100644
--- a/drivers/net/ethernet/i825xx/82596.c
+++ b/drivers/net/ethernet/i825xx/82596.c
@@ -1527,9 +1527,7 @@ int __init init_module(void)
 	if (debug >= 0)
 		i596_debug = debug;
 	dev_82596 = i82596_probe(-1);
-	if (IS_ERR(dev_82596))
-		return PTR_ERR(dev_82596);
-	return 0;
+	return PTR_ERR_OR_ZERO(dev_82596);
 }
 
 void __exit cleanup_module(void)
-- 
cgit 


From 6fb392b1a63ae36c31f62bc3fc8630b49d602b62 Mon Sep 17 00:00:00 2001
From: Ursula Braun <ursula.braun@de.ibm.com>
Date: Wed, 6 Nov 2013 09:04:52 +0100
Subject: qeth: avoid buffer overflow in snmp ioctl

Check user-defined length in snmp ioctl request and allow request
only if it fits into a qeth command buffer.

Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Reviewed-by: Heiko Carstens <heicars2@linux.vnet.ibm.com>
Reported-by: Nico Golde <nico@ngolde.de>
Reported-by: Fabian Yamaguchi <fabs@goesec.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/s390/net/qeth_core_main.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 0a328d0d11be..bd8c09e7a8d9 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -4451,7 +4451,7 @@ int qeth_snmp_command(struct qeth_card *card, char __user *udata)
 	struct qeth_cmd_buffer *iob;
 	struct qeth_ipa_cmd *cmd;
 	struct qeth_snmp_ureq *ureq;
-	int req_len;
+	unsigned int req_len;
 	struct qeth_arp_query_info qinfo = {0, };
 	int rc = 0;
 
@@ -4467,6 +4467,10 @@ int qeth_snmp_command(struct qeth_card *card, char __user *udata)
 	/* skip 4 bytes (data_len struct member) to get req_len */
 	if (copy_from_user(&req_len, udata + sizeof(int), sizeof(int)))
 		return -EFAULT;
+	if (req_len > (QETH_BUFSIZE - IPA_PDU_HEADER_SIZE -
+		       sizeof(struct qeth_ipacmd_hdr) -
+		       sizeof(struct qeth_ipacmd_setadpparms_hdr)))
+		return -EINVAL;
 	ureq = memdup_user(udata, req_len + sizeof(struct qeth_snmp_ureq_hdr));
 	if (IS_ERR(ureq)) {
 		QETH_CARD_TEXT(card, 2, "snmpnome");
-- 
cgit 


From cb85b7e7a0605de2de139d2c293ff10affc8a81c Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Wed, 16 Oct 2013 13:16:14 +0100
Subject: mtd: dataflash: Say if we find a device we don't support

Ensure that the error message if we identify a flash we don't know how to
talk to is displayed on the console in order to aid diagnostics. While
we're at convert the message to use dev_info() rather than our hand rolled
version of it for consistency.

Signed-off-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/devices/mtd_dataflash.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index 1cfbfcfb6e19..4a47b0266d4e 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -879,7 +879,7 @@ static int dataflash_probe(struct spi_device *spi)
 		break;
 	/* obsolete AT45DB1282 not (yet?) supported */
 	default:
-		pr_debug("%s: unsupported device (%x)\n", dev_name(&spi->dev),
+		dev_info(&spi->dev, "unsupported device (%x)\n",
 				status & 0x3c);
 		status = -ENODEV;
 	}
-- 
cgit 


From b1eb234fb38dd1b6fb86969bf8f27348e4ec4c74 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 13 Oct 2013 08:21:32 +0200
Subject: mtd: nand: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/mxc_nand.c    | 2 +-
 drivers/mtd/nand/pxa3xx_nand.c | 3 +--
 drivers/mtd/nand/tmio_nand.c   | 3 +--
 3 files changed, 3 insertions(+), 5 deletions(-)

diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 103775525c53..4edea7f4462f 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -1508,7 +1508,7 @@ static int mxcnd_probe(struct platform_device *pdev)
 	host->devtype_data->irq_control(host, 0);
 
 	err = devm_request_irq(&pdev->dev, host->irq, mxc_nfc_irq,
-			IRQF_DISABLED, DRIVER_NAME, host);
+			0, DRIVER_NAME, host);
 	if (err)
 		return err;
 
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index 64c258ec0170..4cabdc9fda90 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -1213,8 +1213,7 @@ static int alloc_nand_resource(struct platform_device *pdev)
 	/* initialize all interrupts to be disabled */
 	disable_int(info, NDSR_MASK);
 
-	ret = request_irq(irq, pxa3xx_nand_irq, IRQF_DISABLED,
-			  pdev->name, info);
+	ret = request_irq(irq, pxa3xx_nand_irq, 0, pdev->name, info);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to request IRQ\n");
 		goto fail_free_buf;
diff --git a/drivers/mtd/nand/tmio_nand.c b/drivers/mtd/nand/tmio_nand.c
index 396530d87ecf..a3747c914d57 100644
--- a/drivers/mtd/nand/tmio_nand.c
+++ b/drivers/mtd/nand/tmio_nand.c
@@ -428,8 +428,7 @@ static int tmio_probe(struct platform_device *dev)
 	/* 15 us command delay time */
 	nand_chip->chip_delay = 15;
 
-	retval = request_irq(irq, &tmio_irq,
-				IRQF_DISABLED, dev_name(&dev->dev), tmio);
+	retval = request_irq(irq, &tmio_irq, 0, dev_name(&dev->dev), tmio);
 	if (retval) {
 		dev_err(&dev->dev, "request_irq error %d\n", retval);
 		goto err_irq;
-- 
cgit 


From 97de79e02d5e85b4a147b74cc2947b8613d806f7 Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Fri, 18 Oct 2013 14:20:53 +0800
Subject: mtd: nand: use a local variable to simplify the nand_scan_tail

There are too many "chip->ecc" in the nand_scan_tail() which makes the eyes
sore.

This patch uses a local variable "ecc" to replace the "chip->ecc" to
make the code more graceful.

Do the code change with "s/chip->ecc\./ecc->/g" in the nand_scan_tail,
and also change some lines by hand.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/nand_base.c | 213 +++++++++++++++++++++----------------------
 1 file changed, 104 insertions(+), 109 deletions(-)

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index ec1db1e19c05..bd39f7b67906 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -3558,6 +3558,7 @@ int nand_scan_tail(struct mtd_info *mtd)
 {
 	int i;
 	struct nand_chip *chip = mtd->priv;
+	struct nand_ecc_ctrl *ecc = &chip->ecc;
 
 	/* New bad blocks should be marked in OOB, flash-based BBT, or both */
 	BUG_ON((chip->bbt_options & NAND_BBT_NO_OOB_BBM) &&
@@ -3574,19 +3575,19 @@ int nand_scan_tail(struct mtd_info *mtd)
 	/*
 	 * If no default placement scheme is given, select an appropriate one.
 	 */
-	if (!chip->ecc.layout && (chip->ecc.mode != NAND_ECC_SOFT_BCH)) {
+	if (!ecc->layout && (ecc->mode != NAND_ECC_SOFT_BCH)) {
 		switch (mtd->oobsize) {
 		case 8:
-			chip->ecc.layout = &nand_oob_8;
+			ecc->layout = &nand_oob_8;
 			break;
 		case 16:
-			chip->ecc.layout = &nand_oob_16;
+			ecc->layout = &nand_oob_16;
 			break;
 		case 64:
-			chip->ecc.layout = &nand_oob_64;
+			ecc->layout = &nand_oob_64;
 			break;
 		case 128:
-			chip->ecc.layout = &nand_oob_128;
+			ecc->layout = &nand_oob_128;
 			break;
 		default:
 			pr_warn("No oob scheme defined for oobsize %d\n",
@@ -3603,64 +3604,62 @@ int nand_scan_tail(struct mtd_info *mtd)
 	 * selected and we have 256 byte pagesize fallback to software ECC
 	 */
 
-	switch (chip->ecc.mode) {
+	switch (ecc->mode) {
 	case NAND_ECC_HW_OOB_FIRST:
 		/* Similar to NAND_ECC_HW, but a separate read_page handle */
-		if (!chip->ecc.calculate || !chip->ecc.correct ||
-		     !chip->ecc.hwctl) {
+		if (!ecc->calculate || !ecc->correct || !ecc->hwctl) {
 			pr_warn("No ECC functions supplied; "
 				   "hardware ECC not possible\n");
 			BUG();
 		}
-		if (!chip->ecc.read_page)
-			chip->ecc.read_page = nand_read_page_hwecc_oob_first;
+		if (!ecc->read_page)
+			ecc->read_page = nand_read_page_hwecc_oob_first;
 
 	case NAND_ECC_HW:
 		/* Use standard hwecc read page function? */
-		if (!chip->ecc.read_page)
-			chip->ecc.read_page = nand_read_page_hwecc;
-		if (!chip->ecc.write_page)
-			chip->ecc.write_page = nand_write_page_hwecc;
-		if (!chip->ecc.read_page_raw)
-			chip->ecc.read_page_raw = nand_read_page_raw;
-		if (!chip->ecc.write_page_raw)
-			chip->ecc.write_page_raw = nand_write_page_raw;
-		if (!chip->ecc.read_oob)
-			chip->ecc.read_oob = nand_read_oob_std;
-		if (!chip->ecc.write_oob)
-			chip->ecc.write_oob = nand_write_oob_std;
-		if (!chip->ecc.read_subpage)
-			chip->ecc.read_subpage = nand_read_subpage;
-		if (!chip->ecc.write_subpage)
-			chip->ecc.write_subpage = nand_write_subpage_hwecc;
+		if (!ecc->read_page)
+			ecc->read_page = nand_read_page_hwecc;
+		if (!ecc->write_page)
+			ecc->write_page = nand_write_page_hwecc;
+		if (!ecc->read_page_raw)
+			ecc->read_page_raw = nand_read_page_raw;
+		if (!ecc->write_page_raw)
+			ecc->write_page_raw = nand_write_page_raw;
+		if (!ecc->read_oob)
+			ecc->read_oob = nand_read_oob_std;
+		if (!ecc->write_oob)
+			ecc->write_oob = nand_write_oob_std;
+		if (!ecc->read_subpage)
+			ecc->read_subpage = nand_read_subpage;
+		if (!ecc->write_subpage)
+			ecc->write_subpage = nand_write_subpage_hwecc;
 
 	case NAND_ECC_HW_SYNDROME:
-		if ((!chip->ecc.calculate || !chip->ecc.correct ||
-		     !chip->ecc.hwctl) &&
-		    (!chip->ecc.read_page ||
-		     chip->ecc.read_page == nand_read_page_hwecc ||
-		     !chip->ecc.write_page ||
-		     chip->ecc.write_page == nand_write_page_hwecc)) {
+		if ((!ecc->calculate || !ecc->correct || !ecc->hwctl) &&
+		    (!ecc->read_page ||
+		     ecc->read_page == nand_read_page_hwecc ||
+		     !ecc->write_page ||
+		     ecc->write_page == nand_write_page_hwecc)) {
 			pr_warn("No ECC functions supplied; "
 				   "hardware ECC not possible\n");
 			BUG();
 		}
 		/* Use standard syndrome read/write page function? */
-		if (!chip->ecc.read_page)
-			chip->ecc.read_page = nand_read_page_syndrome;
-		if (!chip->ecc.write_page)
-			chip->ecc.write_page = nand_write_page_syndrome;
-		if (!chip->ecc.read_page_raw)
-			chip->ecc.read_page_raw = nand_read_page_raw_syndrome;
-		if (!chip->ecc.write_page_raw)
-			chip->ecc.write_page_raw = nand_write_page_raw_syndrome;
-		if (!chip->ecc.read_oob)
-			chip->ecc.read_oob = nand_read_oob_syndrome;
-		if (!chip->ecc.write_oob)
-			chip->ecc.write_oob = nand_write_oob_syndrome;
-
-		if (mtd->writesize >= chip->ecc.size) {
-			if (!chip->ecc.strength) {
+		if (!ecc->read_page)
+			ecc->read_page = nand_read_page_syndrome;
+		if (!ecc->write_page)
+			ecc->write_page = nand_write_page_syndrome;
+		if (!ecc->read_page_raw)
+			ecc->read_page_raw = nand_read_page_raw_syndrome;
+		if (!ecc->write_page_raw)
+			ecc->write_page_raw = nand_write_page_raw_syndrome;
+		if (!ecc->read_oob)
+			ecc->read_oob = nand_read_oob_syndrome;
+		if (!ecc->write_oob)
+			ecc->write_oob = nand_write_oob_syndrome;
+
+		if (mtd->writesize >= ecc->size) {
+			if (!ecc->strength) {
 				pr_warn("Driver must set ecc.strength when using hardware ECC\n");
 				BUG();
 			}
@@ -3668,23 +3667,23 @@ int nand_scan_tail(struct mtd_info *mtd)
 		}
 		pr_warn("%d byte HW ECC not possible on "
 			   "%d byte page size, fallback to SW ECC\n",
-			   chip->ecc.size, mtd->writesize);
-		chip->ecc.mode = NAND_ECC_SOFT;
+			   ecc->size, mtd->writesize);
+		ecc->mode = NAND_ECC_SOFT;
 
 	case NAND_ECC_SOFT:
-		chip->ecc.calculate = nand_calculate_ecc;
-		chip->ecc.correct = nand_correct_data;
-		chip->ecc.read_page = nand_read_page_swecc;
-		chip->ecc.read_subpage = nand_read_subpage;
-		chip->ecc.write_page = nand_write_page_swecc;
-		chip->ecc.read_page_raw = nand_read_page_raw;
-		chip->ecc.write_page_raw = nand_write_page_raw;
-		chip->ecc.read_oob = nand_read_oob_std;
-		chip->ecc.write_oob = nand_write_oob_std;
-		if (!chip->ecc.size)
-			chip->ecc.size = 256;
-		chip->ecc.bytes = 3;
-		chip->ecc.strength = 1;
+		ecc->calculate = nand_calculate_ecc;
+		ecc->correct = nand_correct_data;
+		ecc->read_page = nand_read_page_swecc;
+		ecc->read_subpage = nand_read_subpage;
+		ecc->write_page = nand_write_page_swecc;
+		ecc->read_page_raw = nand_read_page_raw;
+		ecc->write_page_raw = nand_write_page_raw;
+		ecc->read_oob = nand_read_oob_std;
+		ecc->write_oob = nand_write_oob_std;
+		if (!ecc->size)
+			ecc->size = 256;
+		ecc->bytes = 3;
+		ecc->strength = 1;
 		break;
 
 	case NAND_ECC_SOFT_BCH:
@@ -3692,87 +3691,83 @@ int nand_scan_tail(struct mtd_info *mtd)
 			pr_warn("CONFIG_MTD_ECC_BCH not enabled\n");
 			BUG();
 		}
-		chip->ecc.calculate = nand_bch_calculate_ecc;
-		chip->ecc.correct = nand_bch_correct_data;
-		chip->ecc.read_page = nand_read_page_swecc;
-		chip->ecc.read_subpage = nand_read_subpage;
-		chip->ecc.write_page = nand_write_page_swecc;
-		chip->ecc.read_page_raw = nand_read_page_raw;
-		chip->ecc.write_page_raw = nand_write_page_raw;
-		chip->ecc.read_oob = nand_read_oob_std;
-		chip->ecc.write_oob = nand_write_oob_std;
+		ecc->calculate = nand_bch_calculate_ecc;
+		ecc->correct = nand_bch_correct_data;
+		ecc->read_page = nand_read_page_swecc;
+		ecc->read_subpage = nand_read_subpage;
+		ecc->write_page = nand_write_page_swecc;
+		ecc->read_page_raw = nand_read_page_raw;
+		ecc->write_page_raw = nand_write_page_raw;
+		ecc->read_oob = nand_read_oob_std;
+		ecc->write_oob = nand_write_oob_std;
 		/*
 		 * Board driver should supply ecc.size and ecc.bytes values to
 		 * select how many bits are correctable; see nand_bch_init()
 		 * for details. Otherwise, default to 4 bits for large page
 		 * devices.
 		 */
-		if (!chip->ecc.size && (mtd->oobsize >= 64)) {
-			chip->ecc.size = 512;
-			chip->ecc.bytes = 7;
+		if (!ecc->size && (mtd->oobsize >= 64)) {
+			ecc->size = 512;
+			ecc->bytes = 7;
 		}
-		chip->ecc.priv = nand_bch_init(mtd,
-					       chip->ecc.size,
-					       chip->ecc.bytes,
-					       &chip->ecc.layout);
-		if (!chip->ecc.priv) {
+		ecc->priv = nand_bch_init(mtd, ecc->size, ecc->bytes,
+					       &ecc->layout);
+		if (!ecc->priv) {
 			pr_warn("BCH ECC initialization failed!\n");
 			BUG();
 		}
-		chip->ecc.strength =
-			chip->ecc.bytes * 8 / fls(8 * chip->ecc.size);
+		ecc->strength = ecc->bytes * 8 / fls(8 * ecc->size);
 		break;
 
 	case NAND_ECC_NONE:
 		pr_warn("NAND_ECC_NONE selected by board driver. "
 			   "This is not recommended!\n");
-		chip->ecc.read_page = nand_read_page_raw;
-		chip->ecc.write_page = nand_write_page_raw;
-		chip->ecc.read_oob = nand_read_oob_std;
-		chip->ecc.read_page_raw = nand_read_page_raw;
-		chip->ecc.write_page_raw = nand_write_page_raw;
-		chip->ecc.write_oob = nand_write_oob_std;
-		chip->ecc.size = mtd->writesize;
-		chip->ecc.bytes = 0;
-		chip->ecc.strength = 0;
+		ecc->read_page = nand_read_page_raw;
+		ecc->write_page = nand_write_page_raw;
+		ecc->read_oob = nand_read_oob_std;
+		ecc->read_page_raw = nand_read_page_raw;
+		ecc->write_page_raw = nand_write_page_raw;
+		ecc->write_oob = nand_write_oob_std;
+		ecc->size = mtd->writesize;
+		ecc->bytes = 0;
+		ecc->strength = 0;
 		break;
 
 	default:
-		pr_warn("Invalid NAND_ECC_MODE %d\n", chip->ecc.mode);
+		pr_warn("Invalid NAND_ECC_MODE %d\n", ecc->mode);
 		BUG();
 	}
 
 	/* For many systems, the standard OOB write also works for raw */
-	if (!chip->ecc.read_oob_raw)
-		chip->ecc.read_oob_raw = chip->ecc.read_oob;
-	if (!chip->ecc.write_oob_raw)
-		chip->ecc.write_oob_raw = chip->ecc.write_oob;
+	if (!ecc->read_oob_raw)
+		ecc->read_oob_raw = ecc->read_oob;
+	if (!ecc->write_oob_raw)
+		ecc->write_oob_raw = ecc->write_oob;
 
 	/*
 	 * The number of bytes available for a client to place data into
 	 * the out of band area.
 	 */
-	chip->ecc.layout->oobavail = 0;
-	for (i = 0; chip->ecc.layout->oobfree[i].length
-			&& i < ARRAY_SIZE(chip->ecc.layout->oobfree); i++)
-		chip->ecc.layout->oobavail +=
-			chip->ecc.layout->oobfree[i].length;
-	mtd->oobavail = chip->ecc.layout->oobavail;
+	ecc->layout->oobavail = 0;
+	for (i = 0; ecc->layout->oobfree[i].length
+			&& i < ARRAY_SIZE(ecc->layout->oobfree); i++)
+		ecc->layout->oobavail += ecc->layout->oobfree[i].length;
+	mtd->oobavail = ecc->layout->oobavail;
 
 	/*
 	 * Set the number of read / write steps for one page depending on ECC
 	 * mode.
 	 */
-	chip->ecc.steps = mtd->writesize / chip->ecc.size;
-	if (chip->ecc.steps * chip->ecc.size != mtd->writesize) {
+	ecc->steps = mtd->writesize / ecc->size;
+	if (ecc->steps * ecc->size != mtd->writesize) {
 		pr_warn("Invalid ECC parameters\n");
 		BUG();
 	}
-	chip->ecc.total = chip->ecc.steps * chip->ecc.bytes;
+	ecc->total = ecc->steps * ecc->bytes;
 
 	/* Allow subpage writes up to ecc.steps. Not possible for MLC flash */
 	if (!(chip->options & NAND_NO_SUBPAGE_WRITE) && nand_is_slc(chip)) {
-		switch (chip->ecc.steps) {
+		switch (ecc->steps) {
 		case 2:
 			mtd->subpage_sft = 1;
 			break;
@@ -3792,7 +3787,7 @@ int nand_scan_tail(struct mtd_info *mtd)
 	chip->pagebuf = -1;
 
 	/* Large page NAND with SOFT_ECC should support subpage reads */
-	if ((chip->ecc.mode == NAND_ECC_SOFT) && (chip->page_shift > 9))
+	if ((ecc->mode == NAND_ECC_SOFT) && (chip->page_shift > 9))
 		chip->options |= NAND_SUBPAGE_READ;
 
 	/* Fill in remaining MTD driver data */
@@ -3817,9 +3812,9 @@ int nand_scan_tail(struct mtd_info *mtd)
 	mtd->writebufsize = mtd->writesize;
 
 	/* propagate ecc info to mtd_info */
-	mtd->ecclayout = chip->ecc.layout;
-	mtd->ecc_strength = chip->ecc.strength;
-	mtd->ecc_step_size = chip->ecc.size;
+	mtd->ecclayout = ecc->layout;
+	mtd->ecc_strength = ecc->strength;
+	mtd->ecc_step_size = ecc->size;
 	/*
 	 * Initialize bitflip_threshold to its default prior scan_bbt() call.
 	 * scan_bbt() might invoke mtd_read(), thus bitflip_threshold must be
-- 
cgit 


From 7f15a256b556bf26780d7a0bd03c88914a852022 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Wed, 6 Nov 2013 16:36:08 +0100
Subject: microblaze: Calculate kernel pad automatically

The kernel needs to setup the first two tlbs with pad
which is used for early page allocation which is used
by mapin_ram() to allocate tables for lowmem memory
before memory initialisation is done.
Calculate pad directly from lowmem size.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---
 arch/microblaze/Kconfig       | 4 ----
 arch/microblaze/kernel/head.S | 2 +-
 2 files changed, 1 insertion(+), 5 deletions(-)

diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index d8ec74b4d1ee..655e1cadf692 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -245,10 +245,6 @@ config MICROBLAZE_64K_PAGES
 
 endchoice
 
-config KERNEL_PAD
-	hex "Kernel PAD for unpacking" if ADVANCED_OPTIONS
-	default "0x80000" if MMU
-
 endmenu
 
 source "mm/Kconfig"
diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S
index fcc797feb9db..817b7eec95b6 100644
--- a/arch/microblaze/kernel/head.S
+++ b/arch/microblaze/kernel/head.S
@@ -176,7 +176,7 @@ _invalidate:
 	/* start to do TLB calculation */
 	addik	r12, r0, _end
 	rsub	r12, r3, r12
-	addik	r12, r12, CONFIG_KERNEL_PAD /* that's the pad */
+	addik	r12, r12, CONFIG_LOWMEM_SIZE >> PTE_SHIFT /* that's the pad */
 
 	or r9, r0, r0 /* TLB0 = 0 */
 	or r10, r0, r0 /* TLB1 = 0 */
-- 
cgit 


From ad8ff99e6beb8708b0bdefd9d5658324e90200f0 Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Thu, 7 Nov 2013 09:28:59 +0100
Subject: ALSA: hda - Another Dell headset quirk

This machine has a multi-function headset jack.

BugLink: https://bugs.launchpad.net/bugs/1248856
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 44f12104e8a6..daf720502385 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4796,6 +4796,7 @@ static const struct snd_pci_quirk alc662_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1025, 0x038b, "Acer Aspire 8943G", ALC662_FIXUP_ASPIRE),
 	SND_PCI_QUIRK(0x1028, 0x05d8, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x05db, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
+	SND_PCI_QUIRK(0x1028, 0x0626, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x103c, 0x1632, "HP RP5800", ALC662_FIXUP_HP_RP5800),
 	SND_PCI_QUIRK(0x1043, 0x1477, "ASUS N56VZ", ALC662_FIXUP_BASS_CHMAP),
 	SND_PCI_QUIRK(0x1043, 0x1bf3, "ASUS N76VZ", ALC662_FIXUP_BASS_CHMAP),
-- 
cgit 


From 7d0857a54aedbd47b3de503933d65ce462970bd6 Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Mon, 9 Sep 2013 16:04:15 +0530
Subject: ARC: [SMP] Disallow RTSC

RTSC is strictly incore and must not be allowed in SMP configs

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/Kconfig       | 6 +-----
 arch/arc/kernel/time.c | 7 ++++---
 2 files changed, 5 insertions(+), 8 deletions(-)

diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index fb4177e48260..5ede5460c806 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -136,9 +136,6 @@ if SMP
 config ARC_HAS_COH_CACHES
 	def_bool n
 
-config ARC_HAS_COH_RTSC
-	def_bool n
-
 config ARC_HAS_REENTRANT_IRQ_LV2
 	def_bool n
 
@@ -332,8 +329,7 @@ config ARC_HAS_RTSC
 	bool "Insn: RTSC (64-bit r/o cycle counter)"
 	default y
 	depends on ARC_CPU_REL_4_10
-	# if SMP, enable RTSC only if counter is coherent across cores
-	depends on !SMP || ARC_HAS_COH_RTSC
+	depends on !SMP
 
 endmenu   # "ARC CPU Configuration"
 
diff --git a/arch/arc/kernel/time.c b/arch/arc/kernel/time.c
index 0a9b6b289c4f..e5f3a837fb35 100644
--- a/arch/arc/kernel/time.c
+++ b/arch/arc/kernel/time.c
@@ -63,9 +63,10 @@
 
 int arc_counter_setup(void)
 {
-	/* RTSC insn taps into cpu clk, needs no setup */
-
-	/* For SMP, only allowed if cross-core-sync, hence usable as cs */
+	/*
+	 * For SMP this needs to be 0. However Kconfig glue doesn't
+	 * enable this option for SMP configs
+	 */
 	return 1;
 }
 
-- 
cgit 


From 06b93c347c93d53f5cd76c3efa277ea114cb2000 Mon Sep 17 00:00:00 2001
From: Jiang Liu <jiang.liu@huawei.com>
Date: Thu, 12 Sep 2013 00:07:07 +0800
Subject: smp, ARC: kill SMP single function call interrupt

Commit 9a46ad6d6df3b54 "smp: make smp_call_function_many() use logic
similar to smp_call_function_single()" has unified the way to handle
single and multiple cross-CPU function calls. Now only one interrupt
is needed for architecture specific code to support generic SMP function
call interfaces, so kill the redundant single function call interrupt.

Signed-off-by: Jiang Liu <jiang.liu@huawei.com>
Cc: Jiang Liu <liuj97@gmail.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/kernel/smp.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
index 41bc4c703f42..c2f9ebbc38f6 100644
--- a/arch/arc/kernel/smp.c
+++ b/arch/arc/kernel/smp.c
@@ -211,7 +211,6 @@ enum ipi_msg_type {
 	IPI_NOP = 0,
 	IPI_RESCHEDULE = 1,
 	IPI_CALL_FUNC,
-	IPI_CALL_FUNC_SINGLE,
 	IPI_CPU_STOP
 };
 
@@ -255,7 +254,7 @@ void smp_send_stop(void)
 
 void arch_send_call_function_single_ipi(int cpu)
 {
-	ipi_send_msg(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE);
+	ipi_send_msg(cpumask_of(cpu), IPI_CALL_FUNC);
 }
 
 void arch_send_call_function_ipi_mask(const struct cpumask *mask)
@@ -287,10 +286,6 @@ static inline void __do_IPI(unsigned long *ops, struct ipi_data *ipi, int cpu)
 			generic_smp_call_function_interrupt();
 			break;
 
-		case IPI_CALL_FUNC_SINGLE:
-			generic_smp_call_function_single_interrupt();
-			break;
-
 		case IPI_CPU_STOP:
 			ipi_cpu_stop(cpu);
 			break;
-- 
cgit 


From 737d5b980be82f722153d8104f7949e4204c5911 Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Fri, 1 Nov 2013 19:54:19 +0530
Subject: ARC: [plat-arcfpga] defconfig update

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/configs/fpga_defconfig | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arc/configs/fpga_defconfig b/arch/arc/configs/fpga_defconfig
index 4ca50f1f8d05..e283aa586934 100644
--- a/arch/arc/configs/fpga_defconfig
+++ b/arch/arc/configs/fpga_defconfig
@@ -2,6 +2,8 @@ CONFIG_CROSS_COMPILE="arc-linux-uclibc-"
 # CONFIG_LOCALVERSION_AUTO is not set
 CONFIG_DEFAULT_HOSTNAME="ARCLinux"
 # CONFIG_SWAP is not set
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
@@ -62,4 +64,5 @@ CONFIG_TMPFS=y
 CONFIG_NFS_FS=y
 # CONFIG_ENABLE_WARN_DEPRECATED is not set
 # CONFIG_ENABLE_MUST_CHECK is not set
+# CONFIG_DEBUG_PREEMPT is not set
 CONFIG_XZ_DEC=y
-- 
cgit 


From f44f2a5417b2968a8724b352cc0b2545a6bcb1f4 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Thu, 7 Nov 2013 10:08:22 +0100
Subject: ALSA: compress: fix drain calls blocking other compress functions
 (v6)

The drain and drain_notify callback were blocked by low level driver
until the draining was complete. Due to this being invoked with big
fat mutex held, others ops like reading timestamp, calling pause, drop
were blocked.

So to fix this we add a new snd_compr_drain_notify() API. This would
be required to be invoked by low level driver when drain or partial
drain has been completed by the DSP. Thus we make the drain and
partial_drain callback as non blocking and driver returns immediately
after notifying DSP.  The waiting is done while releasing the lock so
that other ops can go ahead.

[ The commit 917f4b5cba78 was wrongly applied from the preliminary
  patch.  This commit corrects to the final version.
  Sorry for inconvenience!  -- tiwai ]

Signed-off-by: Vinod Koul <vinod.koul@intel.com>
CC: stable@vger.kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/sound/compress_driver.h | 11 ++++-------
 sound/core/compress_offload.c   | 31 +++++++++++++++++++------------
 2 files changed, 23 insertions(+), 19 deletions(-)

diff --git a/include/sound/compress_driver.h b/include/sound/compress_driver.h
index 175ab3237b58..ae6c3b8ed2f5 100644
--- a/include/sound/compress_driver.h
+++ b/include/sound/compress_driver.h
@@ -48,8 +48,6 @@ struct snd_compr_ops;
  *	the ring buffer
  * @total_bytes_transferred: cumulative bytes transferred by offload DSP
  * @sleep: poll sleep
- * @wait: drain wait queue
- * @drain_wake: condition for drain wake
  */
 struct snd_compr_runtime {
 	snd_pcm_state_t state;
@@ -61,8 +59,6 @@ struct snd_compr_runtime {
 	u64 total_bytes_available;
 	u64 total_bytes_transferred;
 	wait_queue_head_t sleep;
-	wait_queue_head_t wait;
-	unsigned int drain_wake;
 	void *private_data;
 };
 
@@ -177,10 +173,11 @@ static inline void snd_compr_fragment_elapsed(struct snd_compr_stream *stream)
 
 static inline void snd_compr_drain_notify(struct snd_compr_stream *stream)
 {
-	snd_BUG_ON(!stream);
+	if (snd_BUG_ON(!stream))
+		return;
 
-	stream->runtime->drain_wake = 1;
-	wake_up(&stream->runtime->wait);
+	stream->runtime->state = SNDRV_PCM_STATE_SETUP;
+	wake_up(&stream->runtime->sleep);
 }
 
 #endif
diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
index 3eb47d0006a7..d9af6387f37c 100644
--- a/sound/core/compress_offload.c
+++ b/sound/core/compress_offload.c
@@ -123,7 +123,6 @@ static int snd_compr_open(struct inode *inode, struct file *f)
 	}
 	runtime->state = SNDRV_PCM_STATE_OPEN;
 	init_waitqueue_head(&runtime->sleep);
-	init_waitqueue_head(&runtime->wait);
 	data->stream.runtime = runtime;
 	f->private_data = (void *)data;
 	mutex_lock(&compr->lock);
@@ -681,8 +680,6 @@ static int snd_compr_stop(struct snd_compr_stream *stream)
 		return -EPERM;
 	retval = stream->ops->trigger(stream, SNDRV_PCM_TRIGGER_STOP);
 	if (!retval) {
-		stream->runtime->state = SNDRV_PCM_STATE_SETUP;
-		wake_up(&stream->runtime->sleep);
 		snd_compr_drain_notify(stream);
 		stream->runtime->total_bytes_available = 0;
 		stream->runtime->total_bytes_transferred = 0;
@@ -692,6 +689,8 @@ static int snd_compr_stop(struct snd_compr_stream *stream)
 
 static int snd_compress_wait_for_drain(struct snd_compr_stream *stream)
 {
+	int ret;
+
 	/*
 	 * We are called with lock held. So drop the lock while we wait for
 	 * drain complete notfication from the driver
@@ -703,12 +702,24 @@ static int snd_compress_wait_for_drain(struct snd_compr_stream *stream)
 	stream->runtime->state = SNDRV_PCM_STATE_DRAINING;
 	mutex_unlock(&stream->device->lock);
 
-	wait_event(stream->runtime->wait, stream->runtime->drain_wake);
+	/* we wait for drain to complete here, drain can return when
+	 * interruption occurred, wait returned error or success.
+	 * For the first two cases we don't do anything different here and
+	 * return after waking up
+	 */
+
+	ret = wait_event_interruptible(stream->runtime->sleep,
+			(stream->runtime->state != SNDRV_PCM_STATE_DRAINING));
+	if (ret == -ERESTARTSYS)
+		pr_debug("wait aborted by a signal");
+	else if (ret)
+		pr_debug("wait for drain failed with %d\n", ret);
+
 
 	wake_up(&stream->runtime->sleep);
 	mutex_lock(&stream->device->lock);
 
-	return 0;
+	return ret;
 }
 
 static int snd_compr_drain(struct snd_compr_stream *stream)
@@ -719,17 +730,14 @@ static int snd_compr_drain(struct snd_compr_stream *stream)
 			stream->runtime->state == SNDRV_PCM_STATE_SETUP)
 		return -EPERM;
 
-	stream->runtime->drain_wake = 0;
 	retval = stream->ops->trigger(stream, SND_COMPR_TRIGGER_DRAIN);
 	if (retval) {
-		pr_err("SND_COMPR_TRIGGER_DRAIN failed %d\n", retval);
+		pr_debug("SND_COMPR_TRIGGER_DRAIN failed %d\n", retval);
 		wake_up(&stream->runtime->sleep);
 		return retval;
 	}
 
-	retval = snd_compress_wait_for_drain(stream);
-	stream->runtime->state = SNDRV_PCM_STATE_SETUP;
-	return retval;
+	return snd_compress_wait_for_drain(stream);
 }
 
 static int snd_compr_next_track(struct snd_compr_stream *stream)
@@ -764,10 +772,9 @@ static int snd_compr_partial_drain(struct snd_compr_stream *stream)
 	if (stream->next_track == false)
 		return -EPERM;
 
-	stream->runtime->drain_wake = 0;
 	retval = stream->ops->trigger(stream, SND_COMPR_TRIGGER_PARTIAL_DRAIN);
 	if (retval) {
-		pr_err("Partial drain returned failure\n");
+		pr_debug("Partial drain returned failure\n");
 		wake_up(&stream->runtime->sleep);
 		return retval;
 	}
-- 
cgit 


From 522e66464467543c0d88d023336eec4df03ad40b Mon Sep 17 00:00:00 2001
From: Fenghua Yu <fenghua.yu@intel.com>
Date: Wed, 23 Oct 2013 18:30:12 -0700
Subject: x86/apic: Disable I/O APIC before shutdown of the local APIC

In reboot and crash path, when we shut down the local APIC, the I/O APIC is
still active. This may cause issues because external interrupts
can still come in and disturb the local APIC during shutdown process.

To quiet external interrupts, disable I/O APIC before shutdown local APIC.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1382578212-4677-1-git-send-email-fenghua.yu@intel.com
Cc: <stable@kernel.org>
[ I suppose the 'issue' is a hang during shutdown. It's a fine change nevertheless. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/crash.c  | 2 +-
 arch/x86/kernel/reboot.c | 8 ++++----
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/x86/kernel/crash.c b/arch/x86/kernel/crash.c
index e0e0841eef45..18677a90d6a3 100644
--- a/arch/x86/kernel/crash.c
+++ b/arch/x86/kernel/crash.c
@@ -127,12 +127,12 @@ void native_machine_crash_shutdown(struct pt_regs *regs)
 	cpu_emergency_vmxoff();
 	cpu_emergency_svm_disable();
 
-	lapic_shutdown();
 #ifdef CONFIG_X86_IO_APIC
 	/* Prevent crash_kexec() from deadlocking on ioapic_lock. */
 	ioapic_zap_locks();
 	disable_IO_APIC();
 #endif
+	lapic_shutdown();
 #ifdef CONFIG_HPET_TIMER
 	hpet_disable();
 #endif
diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index 7e920bff99a3..618ce264b237 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -550,6 +550,10 @@ static void native_machine_emergency_restart(void)
 void native_machine_shutdown(void)
 {
 	/* Stop the cpus and apics */
+#ifdef CONFIG_X86_IO_APIC
+	disable_IO_APIC();
+#endif
+
 #ifdef CONFIG_SMP
 	/*
 	 * Stop all of the others. Also disable the local irq to
@@ -562,10 +566,6 @@ void native_machine_shutdown(void)
 
 	lapic_shutdown();
 
-#ifdef CONFIG_X86_IO_APIC
-	disable_IO_APIC();
-#endif
-
 #ifdef CONFIG_HPET_TIMER
 	hpet_disable();
 #endif
-- 
cgit 


From bffbbc0a2ccb9f3a3235ea6c646030e5fc3d771e Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 7 Nov 2013 11:09:54 +0300
Subject: ALSA: sb16 - info leak in snd_sb_csp_ioctl()

There is a 2 byte hole after "info.func_nr" so we could leak unitialized
stack information to userspace.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/isa/sb/sb16_csp.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/isa/sb/sb16_csp.c b/sound/isa/sb/sb16_csp.c
index c1aa21edcb65..48da2276683d 100644
--- a/sound/isa/sb/sb16_csp.c
+++ b/sound/isa/sb/sb16_csp.c
@@ -208,6 +208,7 @@ static int snd_sb_csp_ioctl(struct snd_hwdep * hw, struct file *file, unsigned i
 	switch (cmd) {
 		/* get information */
 	case SNDRV_SB_CSP_IOCTL_INFO:
+		memset(&info, 0, sizeof(info));
 		*info.codec_name = *p->codec_name;
 		info.func_nr = p->func_nr;
 		info.acc_format = p->acc_format;
-- 
cgit 


From 3b098eb486868d57d7f2666d05b86c19a07df71b Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Thu, 7 Nov 2013 11:14:29 +0800
Subject: ALSA: include/uapi/sound/firewire.h: use "_UAPI" instead of "UAPI"

When installing, "scripts/headers_install.sh" will strip guard macro'
"_UAPI" to prevent from appearing it to users. And also, all another
files which need uapi prefix always use "_UAPI", not "UAPI".

So use "_UAPI" instead of "UAPI" on the guard macro, and also give a
comment for "#endif".

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 include/uapi/sound/firewire.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/uapi/sound/firewire.h b/include/uapi/sound/firewire.h
index e86131ca49e5..59f5961302bf 100644
--- a/include/uapi/sound/firewire.h
+++ b/include/uapi/sound/firewire.h
@@ -1,5 +1,5 @@
-#ifndef UAPI_SOUND_FIREWIRE_H_INCLUDED
-#define UAPI_SOUND_FIREWIRE_H_INCLUDED
+#ifndef _UAPI_SOUND_FIREWIRE_H_INCLUDED
+#define _UAPI_SOUND_FIREWIRE_H_INCLUDED
 
 #include <linux/ioctl.h>
 
@@ -48,4 +48,4 @@ struct snd_firewire_get_info {
  * Returns -EBUSY if the driver is already streaming.
  */
 
-#endif
+#endif /* _UAPI_SOUND_FIREWIRE_H_INCLUDED */
-- 
cgit 


From 5702941eec32cfd7b8cf9e36a0936e48170011a4 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Fri, 5 Jul 2013 00:31:36 +0800
Subject: irqchip: bcm2835: Convert to use IRQCHIP_DECLARE macro

This patch converts irq-bcm2835 driver to use the new IRQCHIP_DECLARE and
irqchip_init.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
Cc: Simon Arlott <simon@fire.lp0.eu>
Cc: Olof Johansson <olof@lixom.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-rpi-kernel@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 arch/arm/mach-bcm2835/bcm2835.c |  5 ++---
 drivers/irqchip/irq-bcm2835.c   | 22 ++++++++++------------
 include/linux/irqchip/bcm2835.h | 29 -----------------------------
 3 files changed, 12 insertions(+), 44 deletions(-)
 delete mode 100644 include/linux/irqchip/bcm2835.h

diff --git a/arch/arm/mach-bcm2835/bcm2835.c b/arch/arm/mach-bcm2835/bcm2835.c
index 40686d7ef500..a4abd851905a 100644
--- a/arch/arm/mach-bcm2835/bcm2835.c
+++ b/arch/arm/mach-bcm2835/bcm2835.c
@@ -14,7 +14,7 @@
 
 #include <linux/delay.h>
 #include <linux/init.h>
-#include <linux/irqchip/bcm2835.h>
+#include <linux/irqchip.h>
 #include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/clk/bcm2835.h>
@@ -131,8 +131,7 @@ static const char * const bcm2835_compat[] = {
 
 DT_MACHINE_START(BCM2835, "BCM2835")
 	.map_io = bcm2835_map_io,
-	.init_irq = bcm2835_init_irq,
-	.handle_irq = bcm2835_handle_irq,
+	.init_irq = irqchip_init,
 	.init_machine = bcm2835_init,
 	.init_time = clocksource_of_init,
 	.restart = bcm2835_restart,
diff --git a/drivers/irqchip/irq-bcm2835.c b/drivers/irqchip/irq-bcm2835.c
index 16c78f1c5ef2..1693b8e7f26a 100644
--- a/drivers/irqchip/irq-bcm2835.c
+++ b/drivers/irqchip/irq-bcm2835.c
@@ -49,9 +49,11 @@
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
 #include <linux/irqdomain.h>
-#include <linux/irqchip/bcm2835.h>
 
 #include <asm/exception.h>
+#include <asm/mach/irq.h>
+
+#include "irqchip.h"
 
 /* Put the bank and irq (32 bits) into the hwirq */
 #define MAKE_HWIRQ(b, n)	((b << 5) | (n))
@@ -93,6 +95,8 @@ struct armctrl_ic {
 };
 
 static struct armctrl_ic intc __read_mostly;
+static asmlinkage void __exception_irq_entry bcm2835_handle_irq(
+	struct pt_regs *regs);
 
 static void armctrl_mask_irq(struct irq_data *d)
 {
@@ -164,17 +168,9 @@ static int __init armctrl_of_init(struct device_node *node,
 			set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 		}
 	}
-	return 0;
-}
-
-static struct of_device_id irq_of_match[] __initconst = {
-	{ .compatible = "brcm,bcm2835-armctrl-ic", .data = armctrl_of_init },
-	{ }
-};
 
-void __init bcm2835_init_irq(void)
-{
-	of_irq_init(irq_of_match);
+	set_handle_irq(bcm2835_handle_irq);
+	return 0;
 }
 
 /*
@@ -200,7 +196,7 @@ static void armctrl_handle_shortcut(int bank, struct pt_regs *regs,
 	handle_IRQ(irq_linear_revmap(intc.domain, irq), regs);
 }
 
-asmlinkage void __exception_irq_entry bcm2835_handle_irq(
+static asmlinkage void __exception_irq_entry bcm2835_handle_irq(
 	struct pt_regs *regs)
 {
 	u32 stat, irq;
@@ -222,3 +218,5 @@ asmlinkage void __exception_irq_entry bcm2835_handle_irq(
 		}
 	}
 }
+
+IRQCHIP_DECLARE(bcm2835_armctrl_ic, "brcm,bcm2835-armctrl-ic", armctrl_of_init);
diff --git a/include/linux/irqchip/bcm2835.h b/include/linux/irqchip/bcm2835.h
deleted file mode 100644
index 48a859bc9dca..000000000000
--- a/include/linux/irqchip/bcm2835.h
+++ /dev/null
@@ -1,29 +0,0 @@
-/*
- * Copyright (C) 2010 Broadcom
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#ifndef __LINUX_IRQCHIP_BCM2835_H_
-#define __LINUX_IRQCHIP_BCM2835_H_
-
-#include <asm/exception.h>
-
-extern void bcm2835_init_irq(void);
-
-extern asmlinkage void __exception_irq_entry bcm2835_handle_irq(
-	struct pt_regs *regs);
-
-#endif
-- 
cgit 


From 5a7b2d27960c7390f1729b6b81eaf94d9e7f3837 Mon Sep 17 00:00:00 2001
From: Josh Triplett <josh@joshtriplett.org>
Date: Thu, 7 Nov 2013 12:03:06 +1100
Subject: scripts/bloat-o-meter: ignore changes in the size of linux_banner

linux_banner can change size due to changes in the compiler, build number,
or the user@host the system was compiled on; ignore size changes in
linux_banner entirely.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/bloat-o-meter | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/bloat-o-meter b/scripts/bloat-o-meter
index 855198c9dedb..cd2916cfbac4 100755
--- a/scripts/bloat-o-meter
+++ b/scripts/bloat-o-meter
@@ -20,6 +20,7 @@ def getsizes(file):
         if type in "tTdDbBrR":
             # strip generated symbols
             if name[:6] == "__mod_": continue
+            if name == "linux_banner": continue
             # statics and some other optimizations adds random .NUMBER
             name = re.sub(r'\.[0-9]+', '', name)
             sym[name] = sym.get(name, 0) + int(size, 16)
-- 
cgit 


From c2e182fab04c1fb50e7dac05d0fd78d331225ad0 Mon Sep 17 00:00:00 2001
From: Josh Triplett <josh@joshtriplett.org>
Date: Thu, 7 Nov 2013 12:03:06 +1100
Subject: scripts/bloat-o-meter: use .startswith rather than fragile slicing

str.startswith has existed since at least Python 2.0, in 2000; use it
rather than a fragile comparison against an initial slice of a string,
which requires hard-coding the length of the string to compare against.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/bloat-o-meter | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/bloat-o-meter b/scripts/bloat-o-meter
index cd2916cfbac4..549d0ab8c662 100755
--- a/scripts/bloat-o-meter
+++ b/scripts/bloat-o-meter
@@ -19,7 +19,7 @@ def getsizes(file):
         size, type, name = l[:-1].split()
         if type in "tTdDbBrR":
             # strip generated symbols
-            if name[:6] == "__mod_": continue
+            if name.startswith("__mod_"): continue
             if name == "linux_banner": continue
             # statics and some other optimizations adds random .NUMBER
             name = re.sub(r'\.[0-9]+', '', name)
-- 
cgit 


From 1b2ca42267fe8c4e909312f2b83dfef882cf6234 Mon Sep 17 00:00:00 2001
From: Borislav Petkov <bp@suse.de>
Date: Wed, 6 Nov 2013 15:46:02 +0100
Subject: kvm, cpuid: Fix sparse warning

We need to copy padding to kernel space first before looking at it.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/kvm/cpuid.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
index 8f66fba804e4..c6976257eff5 100644
--- a/arch/x86/kvm/cpuid.c
+++ b/arch/x86/kvm/cpuid.c
@@ -564,6 +564,7 @@ static bool sanity_check_entries(struct kvm_cpuid_entry2 __user *entries,
 				 __u32 num_entries, unsigned int ioctl_type)
 {
 	int i;
+	__u32 pad[3];
 
 	if (ioctl_type != KVM_GET_EMULATED_CPUID)
 		return false;
@@ -577,9 +578,10 @@ static bool sanity_check_entries(struct kvm_cpuid_entry2 __user *entries,
 	 * sheds a tear.
 	 */
 	for (i = 0; i < num_entries; i++) {
-		if (entries[i].padding[0] ||
-		    entries[i].padding[1] ||
-		    entries[i].padding[2])
+		if (copy_from_user(pad, entries[i].padding, sizeof(pad)))
+			return true;
+
+		if (pad[0] || pad[1] || pad[2])
 			return true;
 	}
 	return false;
-- 
cgit 


From a894bd7fb539d671149fea9420c94c0fbe6baf7a Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Wed, 6 Nov 2013 10:16:20 +0000
Subject: ASoC: generic-dmaengine-pcm: Clear slave_config memory

We currently assume that the DMA Slave Config will be fully populated
by the platform, however some DMA Engines make decisions based on zero
(default) flags such as DMA_SLAVE_BUSWIDTH_UNDEFINED and as this is a
static declaration we need to memset it to clear the data area.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/soc-generic-dmaengine-pcm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c
index ee0790337ec9..6ad4c7a47f5d 100644
--- a/sound/soc/soc-generic-dmaengine-pcm.c
+++ b/sound/soc/soc-generic-dmaengine-pcm.c
@@ -90,6 +90,8 @@ static int dmaengine_pcm_hw_params(struct snd_pcm_substream *substream,
 	struct dma_slave_config slave_config;
 	int ret;
 
+	memset(&slave_config, 0, sizeof(slave_config));
+
 	if (!pcm->config)
 		prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config;
 	else
-- 
cgit 


From a1212d278c05ca0a38f5cbd7ae90ac2e367228a8 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Thu, 7 Nov 2013 20:47:28 +0900
Subject: Revert "sysfs: drop kobj_ns_type handling"

This reverts commit cb26a311578e67769e92a39a0a63476533cb7e12.

It mysteriously causes NetworkManager to not find the wireless device
for me.  As far as I can tell, Tejun *meant* for this commit to not make
any semantic changes, but there clearly are some.  So revert it, taking
into account some of the calling convention changes that happened in
this area in subsequent commits.

Cc: Tejun Heo <tj@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/sysfs/dir.c     | 88 +++++++++++++++++++++++++++++++++++++++---------------
 fs/sysfs/mount.c   | 24 +++++++++++----
 fs/sysfs/symlink.c | 27 +++++++++++++----
 fs/sysfs/sysfs.h   | 25 +++++++++++-----
 lib/kobject.c      |  5 +---
 5 files changed, 122 insertions(+), 47 deletions(-)

diff --git a/fs/sysfs/dir.c b/fs/sysfs/dir.c
index 08c66969d52a..5e73d6626e50 100644
--- a/fs/sysfs/dir.c
+++ b/fs/sysfs/dir.c
@@ -111,11 +111,6 @@ static int sysfs_link_sibling(struct sysfs_dirent *sd)
 	/* add new node and rebalance the tree */
 	rb_link_node(&sd->s_rb, parent, node);
 	rb_insert_color(&sd->s_rb, &sd->s_parent->s_dir.children);
-
-	/* if @sd has ns tag, mark the parent to enable ns filtering */
-	if (sd->s_ns)
-		sd->s_parent->s_flags |= SYSFS_FLAG_HAS_NS;
-
 	return 0;
 }
 
@@ -135,13 +130,6 @@ static void sysfs_unlink_sibling(struct sysfs_dirent *sd)
 		sd->s_parent->s_dir.subdirs--;
 
 	rb_erase(&sd->s_rb, &sd->s_parent->s_dir.children);
-
-	/*
-	 * Either all or none of the children have tags.  Clearing HAS_NS
-	 * when there's no child left is enough to keep the flag synced.
-	 */
-	if (RB_EMPTY_ROOT(&sd->s_parent->s_dir.children))
-		sd->s_parent->s_flags &= ~SYSFS_FLAG_HAS_NS;
 }
 
 /**
@@ -291,6 +279,7 @@ static int sysfs_dentry_delete(const struct dentry *dentry)
 static int sysfs_dentry_revalidate(struct dentry *dentry, unsigned int flags)
 {
 	struct sysfs_dirent *sd;
+	int type;
 
 	if (flags & LOOKUP_RCU)
 		return -ECHILD;
@@ -311,8 +300,13 @@ static int sysfs_dentry_revalidate(struct dentry *dentry, unsigned int flags)
 		goto out_bad;
 
 	/* The sysfs dirent has been moved to a different namespace */
-	if (sd->s_ns && sd->s_ns != sysfs_info(dentry->d_sb)->ns)
-		goto out_bad;
+	type = KOBJ_NS_TYPE_NONE;
+	if (sd->s_parent) {
+		type = sysfs_ns_type(sd->s_parent);
+		if (type != KOBJ_NS_TYPE_NONE &&
+				sysfs_info(dentry->d_sb)->ns[type] != sd->s_ns)
+			goto out_bad;
+	}
 
 	mutex_unlock(&sysfs_mutex);
 out_valid:
@@ -432,6 +426,13 @@ int __sysfs_add_one(struct sysfs_addrm_cxt *acxt, struct sysfs_dirent *sd,
 	struct sysfs_inode_attrs *ps_iattr;
 	int ret;
 
+	if (!!sysfs_ns_type(parent_sd) != !!sd->s_ns) {
+		WARN(1, KERN_WARNING "sysfs: ns %s in '%s' for '%s'\n",
+			sysfs_ns_type(parent_sd) ? "required" : "invalid",
+			parent_sd->s_name, sd->s_name);
+		return -EINVAL;
+	}
+
 	sd->s_hash = sysfs_name_hash(sd->s_name, sd->s_ns);
 	sd->s_parent = sysfs_get(parent_sd);
 
@@ -611,6 +612,13 @@ struct sysfs_dirent *sysfs_find_dirent(struct sysfs_dirent *parent_sd,
 	struct rb_node *node = parent_sd->s_dir.children.rb_node;
 	unsigned int hash;
 
+	if (!!sysfs_ns_type(parent_sd) != !!ns) {
+		WARN(1, KERN_WARNING "sysfs: ns %s in '%s' for '%s'\n",
+			sysfs_ns_type(parent_sd) ? "required" : "invalid",
+			parent_sd->s_name, name);
+		return NULL;
+	}
+
 	hash = sysfs_name_hash(name, ns);
 	while (node) {
 		struct sysfs_dirent *sd;
@@ -659,6 +667,7 @@ struct sysfs_dirent *sysfs_get_dirent_ns(struct sysfs_dirent *parent_sd,
 EXPORT_SYMBOL_GPL(sysfs_get_dirent_ns);
 
 static int create_dir(struct kobject *kobj, struct sysfs_dirent *parent_sd,
+		      enum kobj_ns_type type,
 		      const char *name, const void *ns,
 		      struct sysfs_dirent **p_sd)
 {
@@ -672,6 +681,7 @@ static int create_dir(struct kobject *kobj, struct sysfs_dirent *parent_sd,
 	if (!sd)
 		return -ENOMEM;
 
+	sd->s_flags |= (type << SYSFS_NS_TYPE_SHIFT);
 	sd->s_ns = ns;
 	sd->s_dir.kobj = kobj;
 
@@ -691,7 +701,33 @@ static int create_dir(struct kobject *kobj, struct sysfs_dirent *parent_sd,
 int sysfs_create_subdir(struct kobject *kobj, const char *name,
 			struct sysfs_dirent **p_sd)
 {
-	return create_dir(kobj, kobj->sd, name, NULL, p_sd);
+	return create_dir(kobj, kobj->sd,
+			  KOBJ_NS_TYPE_NONE, name, NULL, p_sd);
+}
+
+/**
+ *	sysfs_read_ns_type: return associated ns_type
+ *	@kobj: the kobject being queried
+ *
+ *	Each kobject can be tagged with exactly one namespace type
+ *	(i.e. network or user).  Return the ns_type associated with
+ *	this object if any
+ */
+static enum kobj_ns_type sysfs_read_ns_type(struct kobject *kobj)
+{
+	const struct kobj_ns_type_operations *ops;
+	enum kobj_ns_type type;
+
+	ops = kobj_child_ns_ops(kobj);
+	if (!ops)
+		return KOBJ_NS_TYPE_NONE;
+
+	type = ops->type;
+	BUG_ON(type <= KOBJ_NS_TYPE_NONE);
+	BUG_ON(type >= KOBJ_NS_TYPES);
+	BUG_ON(!kobj_ns_type_registered(type));
+
+	return type;
 }
 
 /**
@@ -701,6 +737,7 @@ int sysfs_create_subdir(struct kobject *kobj, const char *name,
  */
 int sysfs_create_dir_ns(struct kobject *kobj, const void *ns)
 {
+	enum kobj_ns_type type;
 	struct sysfs_dirent *parent_sd, *sd;
 	int error = 0;
 
@@ -714,7 +751,9 @@ int sysfs_create_dir_ns(struct kobject *kobj, const void *ns)
 	if (!parent_sd)
 		return -ENOENT;
 
-	error = create_dir(kobj, parent_sd, kobject_name(kobj), ns, &sd);
+	type = sysfs_read_ns_type(kobj);
+
+	error = create_dir(kobj, parent_sd, type, kobject_name(kobj), ns, &sd);
 	if (!error)
 		kobj->sd = sd;
 	return error;
@@ -728,12 +767,13 @@ static struct dentry *sysfs_lookup(struct inode *dir, struct dentry *dentry,
 	struct sysfs_dirent *parent_sd = parent->d_fsdata;
 	struct sysfs_dirent *sd;
 	struct inode *inode;
-	const void *ns = NULL;
+	enum kobj_ns_type type;
+	const void *ns;
 
 	mutex_lock(&sysfs_mutex);
 
-	if (parent_sd->s_flags & SYSFS_FLAG_HAS_NS)
-		ns = sysfs_info(dir->i_sb)->ns;
+	type = sysfs_ns_type(parent_sd);
+	ns = sysfs_info(dir->i_sb)->ns[type];
 
 	sd = sysfs_find_dirent(parent_sd, dentry->d_name.name, ns);
 
@@ -1056,15 +1096,15 @@ static int sysfs_readdir(struct file *file, struct dir_context *ctx)
 	struct dentry *dentry = file->f_path.dentry;
 	struct sysfs_dirent *parent_sd = dentry->d_fsdata;
 	struct sysfs_dirent *pos = file->private_data;
-	const void *ns = NULL;
+	enum kobj_ns_type type;
+	const void *ns;
+
+	type = sysfs_ns_type(parent_sd);
+	ns = sysfs_info(dentry->d_sb)->ns[type];
 
 	if (!dir_emit_dots(file, ctx))
 		return 0;
 	mutex_lock(&sysfs_mutex);
-
-	if (parent_sd->s_flags & SYSFS_FLAG_HAS_NS)
-		ns = sysfs_info(dentry->d_sb)->ns;
-
 	for (pos = sysfs_dir_pos(ns, parent_sd, ctx->pos, pos);
 	     pos;
 	     pos = sysfs_dir_next_pos(ns, parent_sd, ctx->pos, pos)) {
diff --git a/fs/sysfs/mount.c b/fs/sysfs/mount.c
index 8c24bce2f4ae..834ec2cdb7a3 100644
--- a/fs/sysfs/mount.c
+++ b/fs/sysfs/mount.c
@@ -36,7 +36,7 @@ static const struct super_operations sysfs_ops = {
 struct sysfs_dirent sysfs_root = {
 	.s_name		= "",
 	.s_count	= ATOMIC_INIT(1),
-	.s_flags	= SYSFS_DIR,
+	.s_flags	= SYSFS_DIR | (KOBJ_NS_TYPE_NONE << SYSFS_NS_TYPE_SHIFT),
 	.s_mode		= S_IFDIR | S_IRUGO | S_IXUGO,
 	.s_ino		= 1,
 };
@@ -77,8 +77,14 @@ static int sysfs_test_super(struct super_block *sb, void *data)
 {
 	struct sysfs_super_info *sb_info = sysfs_info(sb);
 	struct sysfs_super_info *info = data;
+	enum kobj_ns_type type;
+	int found = 1;
 
-	return sb_info->ns == info->ns;
+	for (type = KOBJ_NS_TYPE_NONE; type < KOBJ_NS_TYPES; type++) {
+		if (sb_info->ns[type] != info->ns[type])
+			found = 0;
+	}
+	return found;
 }
 
 static int sysfs_set_super(struct super_block *sb, void *data)
@@ -92,7 +98,9 @@ static int sysfs_set_super(struct super_block *sb, void *data)
 
 static void free_sysfs_super_info(struct sysfs_super_info *info)
 {
-	kobj_ns_drop(KOBJ_NS_TYPE_NET, info->ns);
+	int type;
+	for (type = KOBJ_NS_TYPE_NONE; type < KOBJ_NS_TYPES; type++)
+		kobj_ns_drop(type, info->ns[type]);
 	kfree(info);
 }
 
@@ -100,6 +108,7 @@ static struct dentry *sysfs_mount(struct file_system_type *fs_type,
 	int flags, const char *dev_name, void *data)
 {
 	struct sysfs_super_info *info;
+	enum kobj_ns_type type;
 	struct super_block *sb;
 	int error;
 
@@ -107,15 +116,18 @@ static struct dentry *sysfs_mount(struct file_system_type *fs_type,
 		if (!capable(CAP_SYS_ADMIN) && !fs_fully_visible(fs_type))
 			return ERR_PTR(-EPERM);
 
-		if (!kobj_ns_current_may_mount(KOBJ_NS_TYPE_NET))
-			return ERR_PTR(-EPERM);
+		for (type = KOBJ_NS_TYPE_NONE; type < KOBJ_NS_TYPES; type++) {
+			if (!kobj_ns_current_may_mount(type))
+				return ERR_PTR(-EPERM);
+		}
 	}
 
 	info = kzalloc(sizeof(*info), GFP_KERNEL);
 	if (!info)
 		return ERR_PTR(-ENOMEM);
 
-	info->ns = kobj_ns_grab_current(KOBJ_NS_TYPE_NET);
+	for (type = KOBJ_NS_TYPE_NONE; type < KOBJ_NS_TYPES; type++)
+		info->ns[type] = kobj_ns_grab_current(type);
 
 	sb = sget(fs_type, sysfs_test_super, sysfs_set_super, flags, info);
 	if (IS_ERR(sb) || sb->s_fs_info != info)
diff --git a/fs/sysfs/symlink.c b/fs/sysfs/symlink.c
index 1a23681b8179..3ae3f1bf1a09 100644
--- a/fs/sysfs/symlink.c
+++ b/fs/sysfs/symlink.c
@@ -28,6 +28,7 @@ static int sysfs_do_create_link_sd(struct sysfs_dirent *parent_sd,
 	struct sysfs_dirent *target_sd = NULL;
 	struct sysfs_dirent *sd = NULL;
 	struct sysfs_addrm_cxt acxt;
+	enum kobj_ns_type ns_type;
 	int error;
 
 	BUG_ON(!name || !parent_sd);
@@ -51,15 +52,29 @@ static int sysfs_do_create_link_sd(struct sysfs_dirent *parent_sd,
 	if (!sd)
 		goto out_put;
 
-	sd->s_ns = target_sd->s_ns;
+	ns_type = sysfs_ns_type(parent_sd);
+	if (ns_type)
+		sd->s_ns = target_sd->s_ns;
 	sd->s_symlink.target_sd = target_sd;
 	target_sd = NULL;	/* reference is now owned by the symlink */
 
 	sysfs_addrm_start(&acxt);
-	if (warn)
-		error = sysfs_add_one(&acxt, sd, parent_sd);
-	else
-		error = __sysfs_add_one(&acxt, sd, parent_sd);
+	/* Symlinks must be between directories with the same ns_type */
+	if (!ns_type ||
+	    (ns_type == sysfs_ns_type(sd->s_symlink.target_sd->s_parent))) {
+		if (warn)
+			error = sysfs_add_one(&acxt, sd, parent_sd);
+		else
+			error = __sysfs_add_one(&acxt, sd, parent_sd);
+	} else {
+		error = -EINVAL;
+		WARN(1, KERN_WARNING
+			"sysfs: symlink across ns_types %s/%s -> %s/%s\n",
+			parent_sd->s_name,
+			sd->s_name,
+			sd->s_symlink.target_sd->s_parent->s_name,
+			sd->s_symlink.target_sd->s_name);
+	}
 	sysfs_addrm_finish(&acxt);
 
 	if (error)
@@ -149,7 +164,7 @@ void sysfs_delete_link(struct kobject *kobj, struct kobject *targ,
 	 * sysfs_remove_dir() for details.
 	 */
 	spin_lock(&sysfs_symlink_target_lock);
-	if (targ->sd)
+	if (targ->sd && sysfs_ns_type(kobj->sd))
 		ns = targ->sd->s_ns;
 	spin_unlock(&sysfs_symlink_target_lock);
 	sysfs_hash_and_remove(kobj->sd, name, ns);
diff --git a/fs/sysfs/sysfs.h b/fs/sysfs/sysfs.h
index e3aea92ebfa3..0af09fbfb3f6 100644
--- a/fs/sysfs/sysfs.h
+++ b/fs/sysfs/sysfs.h
@@ -90,8 +90,11 @@ struct sysfs_dirent {
 #define SYSFS_COPY_NAME			(SYSFS_DIR | SYSFS_KOBJ_LINK)
 #define SYSFS_ACTIVE_REF		(SYSFS_KOBJ_ATTR | SYSFS_KOBJ_BIN_ATTR)
 
-#define SYSFS_FLAG_MASK			~SYSFS_TYPE_MASK
-#define SYSFS_FLAG_HAS_NS		0x01000
+/* identify any namespace tag on sysfs_dirents */
+#define SYSFS_NS_TYPE_MASK		0xf00
+#define SYSFS_NS_TYPE_SHIFT		8
+
+#define SYSFS_FLAG_MASK			~(SYSFS_NS_TYPE_MASK|SYSFS_TYPE_MASK)
 #define SYSFS_FLAG_REMOVED		0x02000
 
 static inline unsigned int sysfs_type(struct sysfs_dirent *sd)
@@ -99,6 +102,15 @@ static inline unsigned int sysfs_type(struct sysfs_dirent *sd)
 	return sd->s_flags & SYSFS_TYPE_MASK;
 }
 
+/*
+ * Return any namespace tags on this dirent.
+ * enum kobj_ns_type is defined in linux/kobject.h
+ */
+static inline enum kobj_ns_type sysfs_ns_type(struct sysfs_dirent *sd)
+{
+	return (sd->s_flags & SYSFS_NS_TYPE_MASK) >> SYSFS_NS_TYPE_SHIFT;
+}
+
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
 
 #define sysfs_dirent_init_lockdep(sd)				\
@@ -143,13 +155,12 @@ struct sysfs_addrm_cxt {
  */
 
 /*
- * Each sb is associated with one namespace tag, currently the network
- * namespace of the task which mounted this sysfs instance.  If multiple
- * tags become necessary, make the following an array and compare
- * sysfs_dirent tag against every entry.
+ * Each sb is associated with a set of namespace tags (i.e.
+ * the network namespace of the task which mounted this sysfs
+ * instance).
  */
 struct sysfs_super_info {
-	void *ns;
+	void *ns[KOBJ_NS_TYPES];
 };
 #define sysfs_info(SB) ((struct sysfs_super_info *)(SB->s_fs_info))
 extern struct sysfs_dirent sysfs_root;
diff --git a/lib/kobject.c b/lib/kobject.c
index 7a1c203083eb..5b4b8886435e 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -30,14 +30,11 @@
 const void *kobject_namespace(struct kobject *kobj)
 {
 	const struct kobj_ns_type_operations *ns_ops = kobj_ns_ops(kobj);
-	const void *ns;
 
 	if (!ns_ops || ns_ops->type == KOBJ_NS_TYPE_NONE)
 		return NULL;
 
-	ns = kobj->ktype->namespace(kobj);
-	WARN_ON(!ns);	/* @kobj in a namespace is required to have !NULL tag */
-	return ns;
+	return kobj->ktype->namespace(kobj);
 }
 
 /*
-- 
cgit 


From efe4710860fa6ed10dd041f13902f0e06c86e8cc Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 7 Nov 2013 13:38:23 +0100
Subject: ALSA: hda - Delay HDMI presence reports while waiting for ELD
 information

There is a small gap between the jack detection unsolicited event and
the time the ELD is updated.  When user-space queries the HDMI ELD
immediately after receiving the notification, it might fail because of
this gap.

For avoiding such a problem, this patch tries to delay the HDMI jack
detect notification until ELD information is fully updated.  The
workaround is imperfect, but good enough as a starting point.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index e22323f50424..ce412d1a15d0 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -1140,7 +1140,7 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
  * Unsolicited events
  */
 
-static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll);
+static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll);
 
 static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
 {
@@ -1166,8 +1166,8 @@ static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
 	if (pin_idx < 0)
 		return;
 
-	hdmi_present_sense(get_pin(spec, pin_idx), 1);
-	snd_hda_jack_report_sync(codec);
+	if (hdmi_present_sense(get_pin(spec, pin_idx), 1))
+		snd_hda_jack_report_sync(codec);
 }
 
 static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res)
@@ -1475,7 +1475,7 @@ static int hdmi_read_pin_conn(struct hda_codec *codec, int pin_idx)
 	return 0;
 }
 
-static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
+static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
 {
 	struct hda_codec *codec = per_pin->codec;
 	struct hdmi_spec *spec = codec->spec;
@@ -1493,6 +1493,7 @@ static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
 	int present = snd_hda_pin_sense(codec, pin_nid);
 	bool update_eld = false;
 	bool eld_changed = false;
+	bool ret;
 
 	mutex_lock(&per_pin->lock);
 	pin_eld->monitor_present = !!(present & AC_PINSENSE_PRESENCE);
@@ -1559,7 +1560,12 @@ static void hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
 			       SNDRV_CTL_EVENT_MASK_VALUE | SNDRV_CTL_EVENT_MASK_INFO,
 			       &per_pin->eld_ctl->id);
  unlock:
+	if ((codec->vendor_id & 0xffff0000) == 0x10020000)
+		ret = true; /* AMD codecs create ELD by itself */
+	else
+		ret = !repoll || !pin_eld->monitor_present || pin_eld->eld_valid;
 	mutex_unlock(&per_pin->lock);
+	return ret;
 }
 
 static void hdmi_repoll_eld(struct work_struct *work)
@@ -1570,7 +1576,8 @@ static void hdmi_repoll_eld(struct work_struct *work)
 	if (per_pin->repoll_count++ > 6)
 		per_pin->repoll_count = 0;
 
-	hdmi_present_sense(per_pin, per_pin->repoll_count);
+	if (hdmi_present_sense(per_pin, per_pin->repoll_count))
+		snd_hda_jack_report_sync(per_pin->codec);
 }
 
 static void intel_haswell_fixup_connect_list(struct hda_codec *codec,
-- 
cgit 


From 0f568959de1c90be3f9ec51c271a40d7583f5809 Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Thu, 7 Nov 2013 13:38:24 +0100
Subject: ALSA: hda - Add a block_report flag to jacks

If the jack should not be reported to userspace (e g, because it is
in some transitional state), one can set this flag.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_jack.c | 2 +-
 sound/pci/hda/hda_jack.h | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/hda_jack.c b/sound/pci/hda/hda_jack.c
index 05b3e3e9108f..afe594411a56 100644
--- a/sound/pci/hda/hda_jack.c
+++ b/sound/pci/hda/hda_jack.c
@@ -286,7 +286,7 @@ void snd_hda_jack_report_sync(struct hda_codec *codec)
 	jack = codec->jacktbl.list;
 	for (i = 0; i < codec->jacktbl.used; i++, jack++)
 		if (jack->nid) {
-			if (!jack->kctl)
+			if (!jack->kctl || jack->block_report)
 				continue;
 			state = get_jack_plug_state(jack->pin_sense);
 			snd_kctl_jack_report(codec->bus->card, jack->kctl, state);
diff --git a/sound/pci/hda/hda_jack.h b/sound/pci/hda/hda_jack.h
index 379420c44eef..46e1ea83ce3c 100644
--- a/sound/pci/hda/hda_jack.h
+++ b/sound/pci/hda/hda_jack.h
@@ -28,6 +28,7 @@ struct hda_jack_tbl {
 	unsigned int jack_detect:1;	/* capable of jack-detection? */
 	unsigned int jack_dirty:1;	/* needs to update? */
 	unsigned int phantom_jack:1;    /* a fixed, always present port? */
+	unsigned int block_report:1;    /* in a transitional state - do not report to userspace */
 	hda_nid_t gating_jack;		/* valid when gating jack plugged */
 	hda_nid_t gated_jack;		/* gated is dependent on this jack */
 	struct snd_kcontrol *kctl;	/* assigned kctl for jack-detection */
-- 
cgit 


From 464837a7bc0a3495e3490e3bf85099bb2300efbd Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Thu, 7 Nov 2013 13:38:25 +0100
Subject: ALSA: hda - block HDMI jack reports while repolling

This fixes a race condition in case several monitors are being
repolled in parallel.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index ce412d1a15d0..a96403a828af 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -1477,6 +1477,7 @@ static int hdmi_read_pin_conn(struct hda_codec *codec, int pin_idx)
 
 static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
 {
+	struct hda_jack_tbl *jack;
 	struct hda_codec *codec = per_pin->codec;
 	struct hdmi_spec *spec = codec->spec;
 	struct hdmi_eld *eld = &spec->temp_eld;
@@ -1564,6 +1565,11 @@ static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
 		ret = true; /* AMD codecs create ELD by itself */
 	else
 		ret = !repoll || !pin_eld->monitor_present || pin_eld->eld_valid;
+
+	jack = snd_hda_jack_tbl_get(codec, pin_nid);
+	if (jack)
+		jack->block_report = !ret;
+
 	mutex_unlock(&per_pin->lock);
 	return ret;
 }
-- 
cgit 


From 9968e459f1378a1c00301472cfe672497fe001d5 Mon Sep 17 00:00:00 2001
From: Mathias Krause <minipli@googlemail.com>
Date: Tue, 5 Nov 2013 21:25:32 +0100
Subject: ACPI / event: remove unneeded NULL pointer check

nla_data() cannot return NULL as it simply adds NLA_HDRLEN to the
passed pointer. The NULL pointer check is therefore superfluous.
Remove it.

Found by smatch:
  drivers/acpi/event.c:130 acpi_bus_generate_netlink_event() warn: can
  'event' even be NULL?

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/event.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c
index 8247fcdde079..fdef416c0ff6 100644
--- a/drivers/acpi/event.c
+++ b/drivers/acpi/event.c
@@ -127,11 +127,6 @@ int acpi_bus_generate_netlink_event(const char *device_class,
 	}
 
 	event = nla_data(attr);
-	if (!event) {
-		nlmsg_free(skb);
-		return -EINVAL;
-	}
-
 	memset(event, 0, sizeof(struct acpi_genl_event));
 
 	strcpy(event->device_class, device_class);
-- 
cgit 


From 744a971940520cf0818e1fe882b64892c528e6de Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Wed, 6 Nov 2013 10:17:38 -0300
Subject: perf evsel: Ditch evsel->handler.data field

Not needed since this cset:

  fcf65bf149af: perf evsel: Cache associated event_format

So lets trim this struct a bit.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-j8setslokt0goiwxq9dogzqm@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-inject.c    | 10 +++++-----
 tools/perf/builtin-kmem.c      |  4 ++--
 tools/perf/builtin-lock.c      |  4 ++--
 tools/perf/builtin-sched.c     |  4 ++--
 tools/perf/builtin-timechart.c |  4 ++--
 tools/perf/builtin-trace.c     |  6 +++---
 tools/perf/util/evlist.c       |  2 +-
 tools/perf/util/evsel.h        |  5 +----
 tools/perf/util/session.c      |  4 ++--
 9 files changed, 20 insertions(+), 23 deletions(-)

diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 409ceaf3b9b9..6a2508589460 100644
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -106,8 +106,8 @@ static int perf_event__repipe_sample(struct perf_tool *tool,
 				     struct perf_evsel *evsel,
 				     struct machine *machine)
 {
-	if (evsel->handler.func) {
-		inject_handler f = evsel->handler.func;
+	if (evsel->handler) {
+		inject_handler f = evsel->handler;
 		return f(tool, event, sample, evsel, machine);
 	}
 
@@ -383,11 +383,11 @@ static int __cmd_inject(struct perf_inject *inject)
 				if (perf_evsel__check_stype(evsel, PERF_SAMPLE_TID, "TID"))
 					return -EINVAL;
 
-				evsel->handler.func = perf_inject__sched_switch;
+				evsel->handler = perf_inject__sched_switch;
 			} else if (!strcmp(name, "sched:sched_process_exit"))
-				evsel->handler.func = perf_inject__sched_process_exit;
+				evsel->handler = perf_inject__sched_process_exit;
 			else if (!strncmp(name, "sched:sched_stat_", 17))
-				evsel->handler.func = perf_inject__sched_stat;
+				evsel->handler = perf_inject__sched_stat;
 		}
 	}
 
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index a28970f7ddfb..929462aa4943 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -317,8 +317,8 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
 
 	dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid);
 
-	if (evsel->handler.func != NULL) {
-		tracepoint_handler f = evsel->handler.func;
+	if (evsel->handler != NULL) {
+		tracepoint_handler f = evsel->handler;
 		return f(evsel, sample);
 	}
 
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 35f9aaa565cc..c852c7a85d32 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -819,8 +819,8 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
 		return -1;
 	}
 
-	if (evsel->handler.func != NULL) {
-		tracepoint_handler f = evsel->handler.func;
+	if (evsel->handler != NULL) {
+		tracepoint_handler f = evsel->handler;
 		return f(evsel, sample);
 	}
 
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index a81ab1828aa5..0f3c65518a2c 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1427,8 +1427,8 @@ static int perf_sched__process_tracepoint_sample(struct perf_tool *tool __maybe_
 	evsel->hists.stats.total_period += sample->period;
 	hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE);
 
-	if (evsel->handler.func != NULL) {
-		tracepoint_handler f = evsel->handler.func;
+	if (evsel->handler != NULL) {
+		tracepoint_handler f = evsel->handler;
 		err = f(tool, evsel, sample, machine);
 	}
 
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index e11c61d9bda4..41c9bde2fb67 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -483,8 +483,8 @@ static int process_sample_event(struct perf_tool *tool __maybe_unused,
 	if (sample->cpu > numcpus)
 		numcpus = sample->cpu;
 
-	if (evsel->handler.func != NULL) {
-		tracepoint_handler f = evsel->handler.func;
+	if (evsel->handler != NULL) {
+		tracepoint_handler f = evsel->handler;
 		return f(evsel, sample);
 	}
 
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index b3e57dc64546..ee59df300a34 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1570,7 +1570,7 @@ static int trace__process_sample(struct perf_tool *tool,
 	struct trace *trace = container_of(tool, struct trace, tool);
 	int err = 0;
 
-	tracepoint_handler handler = evsel->handler.func;
+	tracepoint_handler handler = evsel->handler;
 
 	if (skip_sample(trace, sample))
 		return 0;
@@ -1656,7 +1656,7 @@ static void perf_evlist__add_vfs_getname(struct perf_evlist *evlist)
 		return;
 	}
 
-	evsel->handler.func = trace__vfs_getname;
+	evsel->handler = trace__vfs_getname;
 	perf_evlist__add(evlist, evsel);
 }
 
@@ -1768,7 +1768,7 @@ again:
 				goto next_event;
 			}
 
-			handler = evsel->handler.func;
+			handler = evsel->handler;
 			handler(trace, evsel, &sample);
 next_event:
 			perf_evlist__mmap_consume(evlist, i);
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 1c173ccb0ef2..b939221efd8d 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -255,7 +255,7 @@ int perf_evlist__add_newtp(struct perf_evlist *evlist,
 	if (evsel == NULL)
 		return -1;
 
-	evsel->handler.func = handler;
+	evsel->handler = handler;
 	perf_evlist__add(evlist, evsel);
 	return 0;
 }
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 5aa68cddc7d9..64ec8e1a7a28 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -74,10 +74,7 @@ struct perf_evsel {
 		off_t		id_offset;
 	};
 	struct cgroup_sel	*cgrp;
-	struct {
-		void		*func;
-		void		*data;
-	} handler;
+	void			*handler;
 	struct cpu_map		*cpus;
 	unsigned int		sample_size;
 	int			id_pos;
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 0ce46943d627..f36d24a02445 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -1650,9 +1650,9 @@ int __perf_session__set_tracepoints_handlers(struct perf_session *session,
 			continue;
 
 		err = -EEXIST;
-		if (evsel->handler.func != NULL)
+		if (evsel->handler != NULL)
 			goto out;
-		evsel->handler.func = assocs[i].handler;
+		evsel->handler = assocs[i].handler;
 	}
 
 	err = 0;
-- 
cgit 


From a614d01bdd0cc8200d917da25f5a3d539b944193 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Wed, 6 Nov 2013 08:55:35 -0700
Subject: perf tools: Fix version when building out of tree

When building perf out of tree:

  $ make perf-tar-src-pkg
  $ tar -xf perf-<ver>.tar -C /tmp
  $ cd /tmp/perf<ver>
  $ make -C tools/perf

you get this warning message:
    make[1]: *** No rule to make target `kernelversion'.  Stop.

Fix it by saving the perf version in the tar file and using that for the
out of tree builds.

v2: removed short form request and fixed up version string from usual output.

Signed-off-by: David Ahern <dsahern@gmail.com>
Suggested-by: Ingo Molnar <mingo@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/1383753335-25782-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 scripts/package/Makefile         | 4 +++-
 tools/perf/util/PERF-VERSION-GEN | 3 +++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/scripts/package/Makefile b/scripts/package/Makefile
index a4f31c900fa6..c5d473393816 100644
--- a/scripts/package/Makefile
+++ b/scripts/package/Makefile
@@ -115,7 +115,9 @@ git --git-dir=$(srctree)/.git archive --prefix=$(perf-tar)/         \
 	-o $(perf-tar).tar;                                         \
 mkdir -p $(perf-tar);                                               \
 git --git-dir=$(srctree)/.git rev-parse HEAD > $(perf-tar)/HEAD;    \
-tar rf $(perf-tar).tar $(perf-tar)/HEAD;                            \
+(cd $(srctree)/tools/perf;                                          \
+util/PERF-VERSION-GEN ../../$(perf-tar)/ 2>/dev/null);              \
+tar rf $(perf-tar).tar $(perf-tar)/HEAD $(perf-tar)/PERF-VERSION-FILE; \
 rm -r $(perf-tar);                                                  \
 $(if $(findstring tar-src,$@),,                                     \
 $(if $(findstring bz2,$@),bzip2,                                    \
diff --git a/tools/perf/util/PERF-VERSION-GEN b/tools/perf/util/PERF-VERSION-GEN
index ce7a804b2951..39f17507578d 100755
--- a/tools/perf/util/PERF-VERSION-GEN
+++ b/tools/perf/util/PERF-VERSION-GEN
@@ -19,6 +19,9 @@ if test -d ../../.git -o -f ../../.git
 then
 	TAG=$(git describe --abbrev=0 --match "v[0-9].[0-9]*" 2>/dev/null )
 	CID=$(git log -1 --abbrev=4 --pretty=format:"%h" 2>/dev/null) && CID="-g$CID"
+elif test -f ../../PERF-VERSION-FILE
+then
+	TAG=$(cut -d' ' -f3 ../../PERF-VERSION-FILE | sed -e 's/\"//g')
 fi
 if test -z "$TAG"
 then
-- 
cgit 


From 77170988ff67fb959602ab4df296ae676f556a59 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Wed, 6 Nov 2013 16:35:57 -0300
Subject: perf trace: Don't relookup fields by name in each sample

Instead do the lookups just when creating the tracepoints, initially for
the most common, raw_syscalls:sys_{enter,exit}.

It works by having evsel->priv have a per tracepoint structure with
entries for the fields, for direct access, with the offset and a
function to get the value from the sample, doing the swap if needed.

Using a simple workload that does M millions write syscalls, we go from:

 # perf stat -i -e cycles /tmp/oldperf trace ./sc_hello 100 > /dev/null

 Performance counter stats for '/tmp/oldperf trace ./sc_hello 100':

     8,366,771,459 cycles

       2.668025928 seconds time elapsed

 # perf stat -i -e cycles perf trace ./sc_hello 100 > /dev/null

 Performance counter stats for 'perf trace ./sc_hello 100':

     8,345,187,650 cycles

       2.631748425 seconds time elapsed

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-eyfhvoo510a5i10b27dnvm88@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 199 ++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 188 insertions(+), 11 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index ee59df300a34..329b7832b5da 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -35,6 +35,189 @@
 # define MADV_UNMERGEABLE	13
 #endif
 
+struct tp_field {
+	int offset;
+	union {
+		u64 (*integer)(struct tp_field *field, struct perf_sample *sample);
+		void *(*pointer)(struct tp_field *field, struct perf_sample *sample);
+	};
+};
+
+#define TP_UINT_FIELD(bits) \
+static u64 tp_field__u##bits(struct tp_field *field, struct perf_sample *sample) \
+{ \
+	return *(u##bits *)(sample->raw_data + field->offset); \
+}
+
+TP_UINT_FIELD(8);
+TP_UINT_FIELD(16);
+TP_UINT_FIELD(32);
+TP_UINT_FIELD(64);
+
+#define TP_UINT_FIELD__SWAPPED(bits) \
+static u64 tp_field__swapped_u##bits(struct tp_field *field, struct perf_sample *sample) \
+{ \
+	u##bits value = *(u##bits *)(sample->raw_data + field->offset); \
+	return bswap_##bits(value);\
+}
+
+TP_UINT_FIELD__SWAPPED(16);
+TP_UINT_FIELD__SWAPPED(32);
+TP_UINT_FIELD__SWAPPED(64);
+
+static int tp_field__init_uint(struct tp_field *field,
+			       struct format_field *format_field,
+			       bool needs_swap)
+{
+	field->offset = format_field->offset;
+
+	switch (format_field->size) {
+	case 1:
+		field->integer = tp_field__u8;
+		break;
+	case 2:
+		field->integer = needs_swap ? tp_field__swapped_u16 : tp_field__u16;
+		break;
+	case 4:
+		field->integer = needs_swap ? tp_field__swapped_u32 : tp_field__u32;
+		break;
+	case 8:
+		field->integer = needs_swap ? tp_field__swapped_u64 : tp_field__u64;
+		break;
+	default:
+		return -1;
+	}
+
+	return 0;
+}
+
+static void *tp_field__ptr(struct tp_field *field, struct perf_sample *sample)
+{
+	return sample->raw_data + field->offset;
+}
+
+static int tp_field__init_ptr(struct tp_field *field, struct format_field *format_field)
+{
+	field->offset = format_field->offset;
+	field->pointer = tp_field__ptr;
+	return 0;
+}
+
+struct syscall_tp {
+	struct tp_field id;
+	union {
+		struct tp_field args, ret;
+	};
+};
+
+static int perf_evsel__init_tp_uint_field(struct perf_evsel *evsel,
+					  struct tp_field *field,
+					  const char *name)
+{
+	struct format_field *format_field = perf_evsel__field(evsel, name);
+
+	if (format_field == NULL)
+		return -1;
+
+	return tp_field__init_uint(field, format_field, evsel->needs_swap);
+}
+
+#define perf_evsel__init_sc_tp_uint_field(evsel, name) \
+	({ struct syscall_tp *sc = evsel->priv;\
+	   perf_evsel__init_tp_uint_field(evsel, &sc->name, #name); })
+
+static int perf_evsel__init_tp_ptr_field(struct perf_evsel *evsel,
+					 struct tp_field *field,
+					 const char *name)
+{
+	struct format_field *format_field = perf_evsel__field(evsel, name);
+
+	if (format_field == NULL)
+		return -1;
+
+	return tp_field__init_ptr(field, format_field);
+}
+
+#define perf_evsel__init_sc_tp_ptr_field(evsel, name) \
+	({ struct syscall_tp *sc = evsel->priv;\
+	   perf_evsel__init_tp_ptr_field(evsel, &sc->name, #name); })
+
+static void perf_evsel__delete_priv(struct perf_evsel *evsel)
+{
+	free(evsel->priv);
+	evsel->priv = NULL;
+	perf_evsel__delete(evsel);
+}
+
+static struct perf_evsel *perf_evsel__syscall_newtp(const char *direction,
+						    void *handler, int idx)
+{
+	struct perf_evsel *evsel = perf_evsel__newtp("raw_syscalls", direction, idx);
+
+	if (evsel) {
+		evsel->priv = malloc(sizeof(struct syscall_tp));
+
+		if (evsel->priv == NULL)
+			goto out_delete;
+
+		if (perf_evsel__init_sc_tp_uint_field(evsel, id))
+			goto out_delete;
+
+		evsel->handler = handler;
+	}
+
+	return evsel;
+
+out_delete:
+	perf_evsel__delete_priv(evsel);
+	return NULL;
+}
+
+#define perf_evsel__sc_tp_uint(evsel, name, sample) \
+	({ struct syscall_tp *fields = evsel->priv; \
+	   fields->name.integer(&fields->name, sample); })
+
+#define perf_evsel__sc_tp_ptr(evsel, name, sample) \
+	({ struct syscall_tp *fields = evsel->priv; \
+	   fields->name.pointer(&fields->name, sample); })
+
+static int perf_evlist__add_syscall_newtp(struct perf_evlist *evlist,
+					  void *sys_enter_handler,
+					  void *sys_exit_handler)
+{
+	int ret = -1;
+	int idx = evlist->nr_entries;
+	struct perf_evsel *sys_enter, *sys_exit;
+
+	sys_enter = perf_evsel__syscall_newtp("sys_enter", sys_enter_handler, idx++);
+	if (sys_enter == NULL)
+		goto out;
+
+	if (perf_evsel__init_sc_tp_ptr_field(sys_enter, args))
+		goto out_delete_sys_enter;
+
+	sys_exit = perf_evsel__syscall_newtp("sys_exit", sys_exit_handler, idx++);
+	if (sys_exit == NULL)
+		goto out_delete_sys_enter;
+
+	if (perf_evsel__init_sc_tp_uint_field(sys_exit, ret))
+		goto out_delete_sys_exit;
+
+	perf_evlist__add(evlist, sys_enter);
+	perf_evlist__add(evlist, sys_exit);
+
+	ret = 0;
+out:
+	return ret;
+
+out_delete_sys_exit:
+	perf_evsel__delete_priv(sys_exit);
+out_delete_sys_enter:
+	perf_evsel__delete_priv(sys_enter);
+	goto out;
+}
+
+
 struct syscall_arg {
 	unsigned long val;
 	struct thread *thread;
@@ -1392,7 +1575,7 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
 	void *args;
 	size_t printed = 0;
 	struct thread *thread;
-	int id = perf_evsel__intval(evsel, sample, "id");
+	int id = perf_evsel__sc_tp_uint(evsel, id, sample);
 	struct syscall *sc = trace__syscall_info(trace, evsel, id);
 	struct thread_trace *ttrace;
 
@@ -1407,12 +1590,7 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
 	if (ttrace == NULL)
 		return -1;
 
-	args = perf_evsel__rawptr(evsel, sample, "args");
-	if (args == NULL) {
-		fprintf(trace->output, "Problems reading syscall arguments\n");
-		return -1;
-	}
-
+	args = perf_evsel__sc_tp_ptr(evsel, args, sample);
 	ttrace = thread->priv;
 
 	if (ttrace->entry_str == NULL) {
@@ -1445,7 +1623,7 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
 	int ret;
 	u64 duration = 0;
 	struct thread *thread;
-	int id = perf_evsel__intval(evsel, sample, "id");
+	int id = perf_evsel__sc_tp_uint(evsel, id, sample);
 	struct syscall *sc = trace__syscall_info(trace, evsel, id);
 	struct thread_trace *ttrace;
 
@@ -1463,7 +1641,7 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
 	if (trace->summary)
 		thread__update_stats(ttrace, id, sample);
 
-	ret = perf_evsel__intval(evsel, sample, "ret");
+	ret = perf_evsel__sc_tp_uint(evsel, ret, sample);
 
 	if (id == trace->audit.open_id && ret >= 0 && trace->last_vfs_getname) {
 		trace__set_fd_pathname(thread, ret, trace->last_vfs_getname);
@@ -1675,8 +1853,7 @@ static int trace__run(struct trace *trace, int argc, const char **argv)
 		goto out;
 	}
 
-	if (perf_evlist__add_newtp(evlist, "raw_syscalls", "sys_enter", trace__sys_enter) ||
-		perf_evlist__add_newtp(evlist, "raw_syscalls", "sys_exit", trace__sys_exit))
+	if (perf_evlist__add_syscall_newtp(evlist, trace__sys_enter, trace__sys_exit))
 		goto out_error_tp;
 
 	perf_evlist__add_vfs_getname(evlist);
-- 
cgit 


From 57706abc19afc60f0b629af839d2ebee17739f59 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Wed, 6 Nov 2013 11:41:34 -0700
Subject: perf record: Refactor feature handling into a separate function

Code move only. No logic changes.

Signed-off-by: David Ahern <dsahern@gmail.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1383763297-27066-2-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-record.c | 33 +++++++++++++++++++++------------
 1 file changed, 21 insertions(+), 12 deletions(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index ea4c04f7437e..2932069ad7a8 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -342,9 +342,28 @@ out:
 	return rc;
 }
 
+static void perf_record__init_features(struct perf_record *rec)
+{
+	struct perf_evlist *evsel_list = rec->evlist;
+	struct perf_session *session = rec->session;
+	int feat;
+
+	for (feat = HEADER_FIRST_FEATURE; feat < HEADER_LAST_FEATURE; feat++)
+		perf_header__set_feat(&session->header, feat);
+
+	if (rec->no_buildid)
+		perf_header__clear_feat(&session->header, HEADER_BUILD_ID);
+
+	if (!have_tracepoints(&evsel_list->entries))
+		perf_header__clear_feat(&session->header, HEADER_TRACING_DATA);
+
+	if (!rec->opts.branch_stack)
+		perf_header__clear_feat(&session->header, HEADER_BRANCH_STACK);
+}
+
 static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 {
-	int err, feat;
+	int err;
 	unsigned long waking = 0;
 	const bool forks = argc > 0;
 	struct machine *machine;
@@ -371,17 +390,7 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 
 	rec->session = session;
 
-	for (feat = HEADER_FIRST_FEATURE; feat < HEADER_LAST_FEATURE; feat++)
-		perf_header__set_feat(&session->header, feat);
-
-	if (rec->no_buildid)
-		perf_header__clear_feat(&session->header, HEADER_BUILD_ID);
-
-	if (!have_tracepoints(&evsel_list->entries))
-		perf_header__clear_feat(&session->header, HEADER_TRACING_DATA);
-
-	if (!rec->opts.branch_stack)
-		perf_header__clear_feat(&session->header, HEADER_BRANCH_STACK);
+	perf_record__init_features(rec);
 
 	if (forks) {
 		err = perf_evlist__prepare_workload(evsel_list, &opts->target,
-- 
cgit 


From f34b9001f9a2f6fa41d3582fe515d194cc86bfb2 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Wed, 6 Nov 2013 11:41:35 -0700
Subject: perf record: Remove advance_output function

1 line function with only 1 user; might as well embed directly.

Signed-off-by: David Ahern <dsahern@gmail.com>
Suggested-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1383763297-27066-3-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-record.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 2932069ad7a8..19c4db6bdd6f 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -77,11 +77,6 @@ struct perf_record {
 	off_t			post_processing_offset;
 };
 
-static void advance_output(struct perf_record *rec, size_t size)
-{
-	rec->bytes_written += size;
-}
-
 static int write_output(struct perf_record *rec, void *buf, size_t size)
 {
 	struct perf_data_file *file = &rec->file;
@@ -461,7 +456,7 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 				pr_err("Couldn't record tracing data.\n");
 				goto out_delete_session;
 			}
-			advance_output(rec, err);
+			rec->bytes_written += err;
 		}
 	}
 
-- 
cgit 


From 7ab75cffd6a1b2195944b8522673522f09e7fcb0 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Wed, 6 Nov 2013 11:41:36 -0700
Subject: perf record: Remove post_processing_offset variable

Duplicates the data_offset from header in the session.

Signed-off-by: David Ahern <dsahern@gmail.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1383763297-27066-4-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-record.c | 8 +++-----
 1 file changed, 3 insertions(+), 5 deletions(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 19c4db6bdd6f..15280b5e5574 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -74,7 +74,6 @@ struct perf_record {
 	bool			no_buildid;
 	bool			no_buildid_cache;
 	long			samples;
-	off_t			post_processing_offset;
 };
 
 static int write_output(struct perf_record *rec, void *buf, size_t size)
@@ -247,13 +246,14 @@ static int process_buildids(struct perf_record *rec)
 {
 	struct perf_data_file *file  = &rec->file;
 	struct perf_session *session = rec->session;
+	u64 start = session->header.data_offset;
 
 	u64 size = lseek(file->fd, 0, SEEK_CUR);
 	if (size == 0)
 		return 0;
 
-	return __perf_session__process_events(session, rec->post_processing_offset,
-					      size - rec->post_processing_offset,
+	return __perf_session__process_events(session, start,
+					      size - start,
 					      size, &build_id__mark_dso_hit_ops);
 }
 
@@ -429,8 +429,6 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 		goto out_delete_session;
 	}
 
-	rec->post_processing_offset = lseek(file->fd, 0, SEEK_CUR);
-
 	machine = &session->machines.host;
 
 	if (file->is_pipe) {
-- 
cgit 


From 512a4cb9e7285e6ef8104da808dc85806321aec8 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 7 Nov 2013 15:44:11 +0100
Subject: ALSA: ice1724: Fix compile warning with CONFIG_PROC_FS=n

Just added a missing ifdef:
  sound/pci/ice1712/quartet.c:210:14: warning: 'get_binary' defined but not used [-Wunused-function]

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/ice1712/quartet.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/pci/ice1712/quartet.c b/sound/pci/ice1712/quartet.c
index 975e0357bd5a..71c6003ef338 100644
--- a/sound/pci/ice1712/quartet.c
+++ b/sound/pci/ice1712/quartet.c
@@ -203,6 +203,7 @@ static const char * const ext_clock_names[3] = {"IEC958 In", "Word Clock 1xFS",
 #define AK4620_DEEMVOL_REG	0x03
 #define AK4620_SMUTE		(1<<7)
 
+#ifdef CONFIG_PROC_FS
 /*
  * Conversion from int value to its binary form. Used for debugging.
  * The output buffer must be allocated prior to calling the function.
@@ -227,6 +228,7 @@ static char *get_binary(char *buffer, int value)
 	buffer[pos] = '\0';
 	return buffer;
 }
+#endif /* CONFIG_PROC_FS */
 
 /*
  * Initial setup of the conversion array GPIO <-> rate
-- 
cgit 


From 8ce000e83848578a621d64eccdc88bd34c2fc70c Mon Sep 17 00:00:00 2001
From: Rodrigo Campos <rodrigo@sdfg.com.ar>
Date: Wed, 6 Nov 2013 22:20:54 +0000
Subject: perf tools: Remove unneeded include

There is no point in sort.h including itself.

The include was added when the file was created, in commit "perf tools:
Create util/sort.and use it" (dd68ada2d) and added a include to "sort.h"
in lot of files (all the files that started using the file). It was
probably added by mistake on sort.h too.

Signed-off-by: Rodrigo Campos <rodrigo@sdfg.com.ar>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1383776454-10595-1-git-send-email-rodrigo@sdfg.com.ar
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/sort.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index f4cc147e0220..43e5ff42a609 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -22,7 +22,6 @@
 #include "parse-events.h"
 
 #include "thread.h"
-#include "sort.h"
 
 extern regex_t parent_regex;
 extern const char *sort_order;
-- 
cgit 


From aff747ebbf68c6efc4d091d54058af89b916f82d Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 7 Nov 2013 16:39:37 +0100
Subject: ALSA: hda - Get rid of AMD HDMI exception in hdmi_present_sense()

Since the recent fake ELD patches, we can remove the check for AMD
HDMI in hdmi_present_sense() and decide the return value from
eld_valid value.

Suggested by Anssi Hannula.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index a96403a828af..e68792311bb2 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -1561,10 +1561,7 @@ static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll)
 			       SNDRV_CTL_EVENT_MASK_VALUE | SNDRV_CTL_EVENT_MASK_INFO,
 			       &per_pin->eld_ctl->id);
  unlock:
-	if ((codec->vendor_id & 0xffff0000) == 0x10020000)
-		ret = true; /* AMD codecs create ELD by itself */
-	else
-		ret = !repoll || !pin_eld->monitor_present || pin_eld->eld_valid;
+	ret = !repoll || !pin_eld->monitor_present || pin_eld->eld_valid;
 
 	jack = snd_hda_jack_tbl_get(codec, pin_nid);
 	if (jack)
-- 
cgit 


From 74dac2ed699cbe1dee0e4e7891619d53a5f2632f Mon Sep 17 00:00:00 2001
From: Tomasz Figa <t.figa@samsung.com>
Date: Tue, 5 Nov 2013 16:21:18 +0100
Subject: of: irq: Fix interrupt-map entry matching

This patch fixes interrupt-map entry matching code to properly match all
specifier cells with interrupt map entries.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Tested-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 drivers/of/irq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index d385bb824772..786b0b47fae4 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -199,7 +199,7 @@ int of_irq_parse_raw(const __be32 *addr, struct of_phandle_args *out_irq)
 			/* Compare specifiers */
 			match = 1;
 			for (i = 0; i < (addrsize + intsize); i++, imaplen--)
-				match = !((match_array[i] ^ *imap++) & imask[i]);
+				match &= !((match_array[i] ^ *imap++) & imask[i]);
 
 			pr_debug(" -> match=%d (imaplen=%d)\n", match, imaplen);
 
-- 
cgit 


From 408679cd3ccfd91a5b63337ec4dd0b6b3d6a6504 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Fri, 1 Nov 2013 12:40:40 -0300
Subject: [media] tda9887: remove an warning when compiling for alpha

There's no need to zero the buffer, as if the routine gets an error,
rc will be different than one.
That fixes the following warning:
	drivers/media/tuners/tda9887.c: In function 'tda9887_status':
	drivers/media/tuners/tda9887.c:539:2: warning: value computed is not used [-Wunused-value]
While here, make fix the CodingStyle on this function.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/tuners/tda9887.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/tuners/tda9887.c b/drivers/media/tuners/tda9887.c
index 300005c535ba..9823248d743f 100644
--- a/drivers/media/tuners/tda9887.c
+++ b/drivers/media/tuners/tda9887.c
@@ -536,8 +536,8 @@ static int tda9887_status(struct dvb_frontend *fe)
 	unsigned char buf[1];
 	int rc;
 
-	memset(buf,0,sizeof(buf));
-	if (1 != (rc = tuner_i2c_xfer_recv(&priv->i2c_props,buf,1)))
+	rc = tuner_i2c_xfer_recv(&priv->i2c_props, buf, 1);
+	if (rc != 1)
 		tuner_info("i2c i/o error: rc == %d (should be 1)\n", rc);
 	dump_read_message(fe, buf);
 	return 0;
-- 
cgit 


From c5b0b3cb8a2b6637d652cae73f00761a1bd6e66e Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Fri, 1 Nov 2013 12:44:54 -0300
Subject: [media] radio-shark: remove a warning when CONFIG_PM is not defined

On alpha, allyesconfig doesn't have CONFIG_PM, and produces the following warnings:
	drivers/media/radio/radio-shark.c:274:13: warning: 'shark_resume_leds' defined but not used [-Wunused-function]
	drivers/media/radio/radio-shark2.c:240:13: warning: 'shark_resume_leds' defined but not used [-Wunused-function]
That's because those functions are used only at device resume.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/radio/radio-shark.c  | 2 ++
 drivers/media/radio/radio-shark2.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/media/radio/radio-shark.c b/drivers/media/radio/radio-shark.c
index b91477212413..3db8a8cfe1a8 100644
--- a/drivers/media/radio/radio-shark.c
+++ b/drivers/media/radio/radio-shark.c
@@ -271,6 +271,7 @@ static void shark_unregister_leds(struct shark_device *shark)
 	cancel_work_sync(&shark->led_work);
 }
 
+#ifdef CONFIG_PM
 static void shark_resume_leds(struct shark_device *shark)
 {
 	if (test_bit(BLUE_IS_PULSE, &shark->brightness_new))
@@ -280,6 +281,7 @@ static void shark_resume_leds(struct shark_device *shark)
 	set_bit(RED_LED, &shark->brightness_new);
 	schedule_work(&shark->led_work);
 }
+#endif
 #else
 static int shark_register_leds(struct shark_device *shark, struct device *dev)
 {
diff --git a/drivers/media/radio/radio-shark2.c b/drivers/media/radio/radio-shark2.c
index 9fb669721e66..d86d90dab8bf 100644
--- a/drivers/media/radio/radio-shark2.c
+++ b/drivers/media/radio/radio-shark2.c
@@ -237,6 +237,7 @@ static void shark_unregister_leds(struct shark_device *shark)
 	cancel_work_sync(&shark->led_work);
 }
 
+#ifdef CONFIG_PM
 static void shark_resume_leds(struct shark_device *shark)
 {
 	int i;
@@ -246,6 +247,7 @@ static void shark_resume_leds(struct shark_device *shark)
 
 	schedule_work(&shark->led_work);
 }
+#endif
 #else
 static int shark_register_leds(struct shark_device *shark, struct device *dev)
 {
-- 
cgit 


From 51d8e7fbffe34dc1c75ad28b49d0bcd210792424 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Fri, 1 Nov 2013 12:55:20 -0300
Subject: [media] zoran: don't build it on alpha

This driver uses virt_to_bus() with is deprecated on Alpha:
	drivers/media/pci/zoran/zoran_device.c: In function 'zr36057_set_vfe':
	drivers/media/pci/zoran/zoran_device.c:451:3: warning: 'virt_to_bus' is deprecated (declared at /devel/v4l/ktest-build/arch/alpha/include/asm/io.h:114) [-Wdeprecated-declarations]
	drivers/media/pci/zoran/zoran_device.c:453:3: warning: 'virt_to_bus' is deprecated (declared at /devel/v4l/ktest-build/arch/alpha/include/asm/io.h:114) [-Wdeprecated-declarations]
	drivers/media/pci/zoran/zoran_device.c: In function 'zr36057_set_jpg':
	drivers/media/pci/zoran/zoran_device.c:796:2: warning: 'virt_to_bus' is deprecated (declared at /devel/v4l/ktest-build/arch/alpha/include/asm/io.h:114) [-Wdeprecated-declarations]
	drivers/media/pci/zoran/zoran_driver.c: In function 'v4l_fbuffer_alloc':
	drivers/media/pci/zoran/zoran_driver.c:241:3: warning: 'virt_to_bus' is deprecated (declared at /devel/v4l/ktest-build/arch/alpha/include/asm/io.h:114) [-Wdeprecated-declarations]
	drivers/media/pci/zoran/zoran_driver.c:245:3: warning: 'virt_to_bus' is deprecated (declared at /devel/v4l/ktest-build/arch/alpha/include/asm/io.h:114) [-Wdeprecated-declarations]
	drivers/media/pci/zoran/zoran_driver.c: In function 'jpg_fbuffer_alloc':
	drivers/media/pci/zoran/zoran_driver.c:334:3: warning: 'virt_to_bus' is deprecated (declared at /devel/v4l/ktest-build/arch/alpha/include/asm/io.h:114) [-Wdeprecated-declarations]
	drivers/media/pci/zoran/zoran_driver.c:347:5: warning: 'virt_to_bus' is deprecated (declared at /devel/v4l/ktest-build/arch/alpha/include/asm/io.h:114) [-Wdeprecated-declarations]
	drivers/media/pci/zoran/zoran_driver.c:366:6: warning: 'virt_to_bus' is deprecated (declared at /devel/v4l/ktest-build/arch/alpha/include/asm/io.h:114) [-Wdeprecated-declarations]
As we're not even sure if it works on Alpha, better to just disable its compilation there.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/zoran/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/pci/zoran/Kconfig b/drivers/media/pci/zoran/Kconfig
index 26ca8702e33f..39ec35bd21a5 100644
--- a/drivers/media/pci/zoran/Kconfig
+++ b/drivers/media/pci/zoran/Kconfig
@@ -1,6 +1,7 @@
 config VIDEO_ZORAN
 	tristate "Zoran ZR36057/36067 Video For Linux"
 	depends on PCI && I2C_ALGOBIT && VIDEO_V4L2 && VIRT_TO_BUS
+	depends on !ALPHA
 	help
 	  Say Y for support for MJPEG capture cards based on the Zoran
 	  36057/36067 PCI controller chipset. This includes the Iomega
-- 
cgit 


From 1d212cf0c2d89adf3d0a6d62d729076f49f087dc Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Fri, 1 Nov 2013 13:09:47 -0300
Subject: [media] cx18: struct i2c_client is too big for stack

	drivers/media/pci/cx18/cx18-driver.c: In function 'cx18_read_eeprom':
	drivers/media/pci/cx18/cx18-driver.c:357:1: warning: the frame size of 1072 bytes is larger than 1024 bytes [-Wframe-larger-than=]
That happens because the routine allocates 256 bytes for an eeprom buffer, plus
the size of struct i2c_client, with is big.
Change the logic to dynamically allocate/deallocate space for struct i2c_client,
instead of  using the stack.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/cx18/cx18-driver.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/drivers/media/pci/cx18/cx18-driver.c b/drivers/media/pci/cx18/cx18-driver.c
index ff7232023f56..c1f8cc6f14b2 100644
--- a/drivers/media/pci/cx18/cx18-driver.c
+++ b/drivers/media/pci/cx18/cx18-driver.c
@@ -324,23 +324,24 @@ static void cx18_eeprom_dump(struct cx18 *cx, unsigned char *eedata, int len)
 /* Hauppauge card? get values from tveeprom */
 void cx18_read_eeprom(struct cx18 *cx, struct tveeprom *tv)
 {
-	struct i2c_client c;
+	struct i2c_client *c;
 	u8 eedata[256];
 
-	memset(&c, 0, sizeof(c));
-	strlcpy(c.name, "cx18 tveeprom tmp", sizeof(c.name));
-	c.adapter = &cx->i2c_adap[0];
-	c.addr = 0xA0 >> 1;
+	c = kzalloc(sizeof(*c), GFP_KERNEL);
+
+	strlcpy(c->name, "cx18 tveeprom tmp", sizeof(c->name));
+	c->adapter = &cx->i2c_adap[0];
+	c->addr = 0xa0 >> 1;
 
 	memset(tv, 0, sizeof(*tv));
-	if (tveeprom_read(&c, eedata, sizeof(eedata)))
-		return;
+	if (tveeprom_read(c, eedata, sizeof(eedata)))
+		goto ret;
 
 	switch (cx->card->type) {
 	case CX18_CARD_HVR_1600_ESMT:
 	case CX18_CARD_HVR_1600_SAMSUNG:
 	case CX18_CARD_HVR_1600_S5H1411:
-		tveeprom_hauppauge_analog(&c, tv, eedata);
+		tveeprom_hauppauge_analog(c, tv, eedata);
 		break;
 	case CX18_CARD_YUAN_MPC718:
 	case CX18_CARD_GOTVIEW_PCI_DVD3:
@@ -354,6 +355,9 @@ void cx18_read_eeprom(struct cx18 *cx, struct tveeprom *tv)
 		cx18_eeprom_dump(cx, eedata, sizeof(eedata));
 		break;
 	}
+
+ret:
+	kfree(c);
 }
 
 static void cx18_process_eeprom(struct cx18 *cx)
-- 
cgit 


From 5f27ca418bedd0342942eca61a12f76d73d95962 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Fri, 1 Nov 2013 13:19:05 -0300
Subject: [media] tef6862: fix warning on avr32 arch

On avr32 arch, we get those warnings:
	drivers/media/radio/tef6862.c:59:1: warning: "MODE_SHIFT" redefined
	In file included from /devel/v4l/ktest-build/arch/avr32/include/asm/ptrace.h:11,
	arch/avr32/include/uapi/asm/ptrace.h:41:1: warning: this is the location of the previous definition
Prefix MSA_ to the MSA register bitmap macros, to avoid reusing the same symbol.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/radio/tef6862.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/media/radio/tef6862.c b/drivers/media/radio/tef6862.c
index 06ac69245ca1..69e3245a58a0 100644
--- a/drivers/media/radio/tef6862.c
+++ b/drivers/media/radio/tef6862.c
@@ -48,15 +48,15 @@
 #define WM_SUB_TEST		0xF
 
 /* Different modes of the MSA register */
-#define MODE_BUFFER		0x0
-#define MODE_PRESET		0x1
-#define MODE_SEARCH		0x2
-#define MODE_AF_UPDATE		0x3
-#define MODE_JUMP		0x4
-#define MODE_CHECK		0x5
-#define MODE_LOAD		0x6
-#define MODE_END		0x7
-#define MODE_SHIFT		5
+#define MSA_MODE_BUFFER		0x0
+#define MSA_MODE_PRESET		0x1
+#define MSA_MODE_SEARCH		0x2
+#define MSA_MODE_AF_UPDATE	0x3
+#define MSA_MODE_JUMP		0x4
+#define MSA_MODE_CHECK		0x5
+#define MSA_MODE_LOAD		0x6
+#define MSA_MODE_END		0x7
+#define MSA_MODE_SHIFT		5
 
 struct tef6862_state {
 	struct v4l2_subdev sd;
@@ -114,7 +114,7 @@ static int tef6862_s_frequency(struct v4l2_subdev *sd, const struct v4l2_frequen
 
 	clamp(freq, TEF6862_LO_FREQ, TEF6862_HI_FREQ);
 	pll = 1964 + ((freq - TEF6862_LO_FREQ) * 20) / FREQ_MUL;
-	i2cmsg[0] = (MODE_PRESET << MODE_SHIFT) | WM_SUB_PLLM;
+	i2cmsg[0] = (MSA_MODE_PRESET << MSA_MODE_SHIFT) | WM_SUB_PLLM;
 	i2cmsg[1] = (pll >> 8) & 0xff;
 	i2cmsg[2] = pll & 0xff;
 
-- 
cgit 


From 9bd766b79a80159338c10f8cec4c1f7ed0fe4a4e Mon Sep 17 00:00:00 2001
From: Sean Young <sean@mess.org>
Date: Sun, 3 Nov 2013 19:13:57 -0300
Subject: [media] iguanair: simplify calculation of carrier delay cycles

Simplify the logic that	calculates the carrier,	and removes a warning
on avr32 arch:
        drivers/media/rc/iguanair.c: In function 'iguanair_set_tx_carrier':
        drivers/media/rc/iguanair.c:304: warning: 'sevens' may be used uninitialized in this function

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/rc/iguanair.c | 22 ++++++----------------
 1 file changed, 6 insertions(+), 16 deletions(-)

diff --git a/drivers/media/rc/iguanair.c b/drivers/media/rc/iguanair.c
index 19632b1c2190..7f05e197680b 100644
--- a/drivers/media/rc/iguanair.c
+++ b/drivers/media/rc/iguanair.c
@@ -308,22 +308,12 @@ static int iguanair_set_tx_carrier(struct rc_dev *dev, uint32_t carrier)
 		cycles = DIV_ROUND_CLOSEST(24000000, carrier * 2) -
 							ir->cycle_overhead;
 
-		/*  make up the the remainer of 4-cycle blocks */
-		switch (cycles & 3) {
-		case 0:
-			sevens = 0;
-			break;
-		case 1:
-			sevens = 3;
-			break;
-		case 2:
-			sevens = 2;
-			break;
-		case 3:
-			sevens = 1;
-			break;
-		}
-
+		/*
+		 * Calculate minimum number of 7 cycles needed so
+		 * we are left with a multiple of 4; so we want to have
+		 * (sevens * 7) & 3 == cycles & 3
+		 */
+		sevens = (4 - cycles) & 3;
 		fours = (cycles - sevens * 7) / 4;
 
 		/* magic happens here */
-- 
cgit 


From 67317c2689567c24d18e0dd43ab6d409fd42dc6e Mon Sep 17 00:00:00 2001
From: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Date: Thu, 7 Nov 2013 15:25:44 +0000
Subject: ARM64: /proc/interrupts: display IPIs of online CPUs only

The non-IPI interrupts are displayed only for the online cpus from
show_interrupts in kernel/irq/proc.c before calling arch_show_interrupts().
As a result, the column headers and the IPI count don't match if any
CPU is offline.

This patch fixes show_ipi_list to display IPIs for online CPUs only.

Signed-off-by: Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kernel/smp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index 3abb9e797dd4..a5aeefab03c3 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -455,7 +455,7 @@ void show_ipi_list(struct seq_file *p, int prec)
 	for (i = 0; i < NR_IPI; i++) {
 		seq_printf(p, "%*s%u:%s", prec - 1, "IPI", i + IPI_RESCHEDULE,
 			   prec >= 4 ? " " : "");
-		for_each_present_cpu(cpu)
+		for_each_online_cpu(cpu)
 			seq_printf(p, "%10u ",
 				   __get_irq_stat(cpu, ipi_irqs[i]));
 		seq_printf(p, "      %s\n", ipi_types[i]);
-- 
cgit 


From baab52ded242c35a2290e1fa82e0cc147d0d8c1a Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 7 Nov 2013 01:51:15 +0100
Subject: PM / runtime: Use pm_runtime_put_sync() in __device_release_driver()

Commit fa180eb448fa (PM / Runtime: Idle devices asynchronously after
probe|release) modified __device_release_driver() to call
pm_runtime_put(dev) instead of pm_runtime_put_sync(dev) before
detaching the driver from the device.  However, that was a mistake,
because pm_runtime_put(dev) causes rpm_idle() to be queued up and
the driver may be gone already when that function is executed.
That breaks the assumptions the drivers have the right to make
about the core's behavior on the basis of the existing documentation
and actually causes problems to happen, so revert that part of
commit fa180eb448fa and restore the previous behavior of
__device_release_driver().

Reported-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Fixes: fa180eb448fa (PM / Runtime: Idle devices asynchronously after probe|release)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Kevin Hilman <khilman@linaro.org>
Acked-by: Ulf Hansson <ulf.hansson@linaro.org>
Cc: 3.10+ <stable@vger.kernel.org> # 3.10+
---
 drivers/base/dd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index 35fa36898916..06051767393f 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -499,7 +499,7 @@ static void __device_release_driver(struct device *dev)
 						     BUS_NOTIFY_UNBIND_DRIVER,
 						     dev);
 
-		pm_runtime_put(dev);
+		pm_runtime_put_sync(dev);
 
 		if (dev->bus && dev->bus->remove)
 			dev->bus->remove(dev);
-- 
cgit 


From a749d13acd8e079ed4c77a9456d842dc94af8f17 Mon Sep 17 00:00:00 2001
From: Josh Wu <josh.wu@atmel.com>
Date: Tue, 5 Nov 2013 17:59:07 +0800
Subject: mtd: atmel_nand: fix bug driver will in a dead lock if no nand
 detected

In the atmel driver probe function, the code shows like following:
  atmel_nand_probe(...) {
        ...

  err_nand_ioremap:
        platform_driver_unregister(&atmel_nand_nfc_driver);
        return res;
  }

If no nand flash detected, the driver probe function will goto
err_nand_ioremap label.
Then platform_driver_unregister() will be called. It will get the
lock of atmel_nand device since it is parent of nfc_device. The
problem is the lock is already hold by atmel_nand_probe itself.
So system will be in a dead lock.

This patch just simply removed to platform_driver_unregister() call.
When atmel_nand driver is quit the platform_driver_unregister() will
be called in atmel_nand_remove().

[Brian: the NAND platform probe really has no business
 registering/unregistering another driver; this fixes the deadlock, but
 we should follow up the likely racy behavior here with a better
 architecture]

Signed-off-by: Josh Wu <josh.wu@atmel.com>
Cc: <stable@vger.kernel.org> # 3.12
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/atmel_nand.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index ef9c9f547c01..469d4e2c450a 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -2142,7 +2142,6 @@ err_no_card:
 	if (host->dma_chan)
 		dma_release_channel(host->dma_chan);
 err_nand_ioremap:
-	platform_driver_unregister(&atmel_nand_nfc_driver);
 	return res;
 }
 
-- 
cgit 


From 7b98118aaa5d75644c48f41fc5d0cc181e478383 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 7 Nov 2013 01:45:40 +0100
Subject: ACPI / hotplug: Consolidate deferred execution of ACPI hotplug
 routines

There are two different interfaces for queuing up work items on the
ACPI hotplug workqueue, alloc_acpi_hp_work() used by PCI and PCI host
bridge hotplug code and acpi_os_hotplug_execute() used by the common
ACPI hotplug code and docking stations.  They both are somewhat
cumbersome to use and work slightly differently.

The users of alloc_acpi_hp_work() have to submit a work function that
will extract the necessary data items from a struct acpi_hp_work
object allocated by alloc_acpi_hp_work() and then will free that
object, while it would be more straightforward to simply use a work
function with one more argument and let the interface take care of
the execution details.

The users of acpi_os_hotplug_execute() also have to deal with the
fact that it takes only one argument in addition to the work function
pointer, although acpi_os_execute_deferred() actually takes care of
the allocation and freeing of memory, so it would have been able to
pass more arguments to the work function if it hadn't been
constrained by the connection with acpi_os_execute().

Moreover, while alloc_acpi_hp_work() makes GFP_KERNEL memory
allocations, which is correct, because hotplug work items are
always queued up from process context, acpi_os_hotplug_execute()
uses GFP_ATOMIC, as that is needed by acpi_os_execute().  Also,
acpi_os_execute_deferred() queued up by it waits for the ACPI event
workqueues to flush before executing the work function, whereas
alloc_acpi_hp_work() can't do anything similar.  That leads to
somewhat arbitrary differences in behavior between various ACPI
hotplug code paths and has to be straightened up.

For this reason, replace both alloc_acpi_hp_work() and
acpi_os_hotplug_execute() with a single interface,
acpi_hotplug_execute(), combining their behavior and being more
friendly to its users than any of the two.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
---
 drivers/acpi/dock.c                | 25 ++--------
 drivers/acpi/internal.h            |  2 +-
 drivers/acpi/osl.c                 | 96 ++++++++++++++++++--------------------
 drivers/acpi/pci_root.c            | 14 ++----
 drivers/acpi/scan.c                | 43 ++++-------------
 drivers/pci/hotplug/acpiphp_glue.c | 18 +++----
 include/acpi/acpi_bus.h            | 12 ++---
 include/acpi/acpiosxf.h            |  3 --
 8 files changed, 71 insertions(+), 142 deletions(-)

diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 05ea4be01a83..eab7d1145bfa 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -671,39 +671,20 @@ static void dock_notify(struct dock_station *ds, u32 event)
 	}
 }
 
-struct dock_data {
-	struct dock_station *ds;
-	u32 event;
-};
-
-static void acpi_dock_deferred_cb(void *context)
+static void acpi_dock_deferred_cb(void *data, u32 event)
 {
-	struct dock_data *data = context;
-
 	acpi_scan_lock_acquire();
-	dock_notify(data->ds, data->event);
+	dock_notify(data, event);
 	acpi_scan_lock_release();
-	kfree(data);
 }
 
 static void dock_notify_handler(acpi_handle handle, u32 event, void *data)
 {
-	struct dock_data *dd;
-
 	if (event != ACPI_NOTIFY_BUS_CHECK && event != ACPI_NOTIFY_DEVICE_CHECK
 	   && event != ACPI_NOTIFY_EJECT_REQUEST)
 		return;
 
-	dd = kmalloc(sizeof(*dd), GFP_KERNEL);
-	if (dd) {
-		acpi_status status;
-
-		dd->ds = data;
-		dd->event = event;
-		status = acpi_os_hotplug_execute(acpi_dock_deferred_cb, dd);
-		if (ACPI_FAILURE(status))
-			kfree(dd);
-	}
+	acpi_hotplug_execute(acpi_dock_deferred_cb, data, event);
 }
 
 /**
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 80cd1a10c4c3..c6db680c826c 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -87,7 +87,7 @@ void acpi_device_add_finalize(struct acpi_device *device);
 void acpi_free_pnp_ids(struct acpi_device_pnp *pnp);
 int acpi_bind_one(struct device *dev, acpi_handle handle);
 int acpi_unbind_one(struct device *dev);
-void acpi_bus_device_eject(struct acpi_device *device, u32 ost_src);
+void acpi_bus_device_eject(void *data, u32 ost_src);
 
 /* --------------------------------------------------------------------------
                                   Power Resource
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index e5f416c7f66e..cfc3e260a688 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -61,7 +61,6 @@ struct acpi_os_dpc {
 	acpi_osd_exec_callback function;
 	void *context;
 	struct work_struct work;
-	int wait;
 };
 
 #ifdef CONFIG_ACPI_CUSTOM_DSDT
@@ -1067,9 +1066,6 @@ static void acpi_os_execute_deferred(struct work_struct *work)
 {
 	struct acpi_os_dpc *dpc = container_of(work, struct acpi_os_dpc, work);
 
-	if (dpc->wait)
-		acpi_os_wait_events_complete();
-
 	dpc->function(dpc->context);
 	kfree(dpc);
 }
@@ -1089,8 +1085,8 @@ static void acpi_os_execute_deferred(struct work_struct *work)
  *
  ******************************************************************************/
 
-static acpi_status __acpi_os_execute(acpi_execute_type type,
-	acpi_osd_exec_callback function, void *context, int hp)
+acpi_status acpi_os_execute(acpi_execute_type type,
+			    acpi_osd_exec_callback function, void *context)
 {
 	acpi_status status = AE_OK;
 	struct acpi_os_dpc *dpc;
@@ -1117,20 +1113,11 @@ static acpi_status __acpi_os_execute(acpi_execute_type type,
 	dpc->context = context;
 
 	/*
-	 * We can't run hotplug code in keventd_wq/kacpid_wq/kacpid_notify_wq
-	 * because the hotplug code may call driver .remove() functions,
-	 * which invoke flush_scheduled_work/acpi_os_wait_events_complete
-	 * to flush these workqueues.
-	 *
 	 * To prevent lockdep from complaining unnecessarily, make sure that
 	 * there is a different static lockdep key for each workqueue by using
 	 * INIT_WORK() for each of them separately.
 	 */
-	if (hp) {
-		queue = kacpi_hotplug_wq;
-		dpc->wait = 1;
-		INIT_WORK(&dpc->work, acpi_os_execute_deferred);
-	} else if (type == OSL_NOTIFY_HANDLER) {
+	if (type == OSL_NOTIFY_HANDLER) {
 		queue = kacpi_notify_wq;
 		INIT_WORK(&dpc->work, acpi_os_execute_deferred);
 	} else {
@@ -1155,28 +1142,59 @@ static acpi_status __acpi_os_execute(acpi_execute_type type,
 	}
 	return status;
 }
+EXPORT_SYMBOL(acpi_os_execute);
 
-acpi_status acpi_os_execute(acpi_execute_type type,
-			    acpi_osd_exec_callback function, void *context)
+void acpi_os_wait_events_complete(void)
 {
-	return __acpi_os_execute(type, function, context, 0);
+	flush_workqueue(kacpid_wq);
+	flush_workqueue(kacpi_notify_wq);
 }
-EXPORT_SYMBOL(acpi_os_execute);
 
-acpi_status acpi_os_hotplug_execute(acpi_osd_exec_callback function,
-	void *context)
+struct acpi_hp_work {
+	struct work_struct work;
+	acpi_hp_callback func;
+	void *data;
+	u32 src;
+};
+
+static void acpi_hotplug_work_fn(struct work_struct *work)
 {
-	return __acpi_os_execute(0, function, context, 1);
+	struct acpi_hp_work *hpw = container_of(work, struct acpi_hp_work, work);
+
+	acpi_os_wait_events_complete();
+	hpw->func(hpw->data, hpw->src);
+	kfree(hpw);
 }
-EXPORT_SYMBOL(acpi_os_hotplug_execute);
 
-void acpi_os_wait_events_complete(void)
+acpi_status acpi_hotplug_execute(acpi_hp_callback func, void *data, u32 src)
 {
-	flush_workqueue(kacpid_wq);
-	flush_workqueue(kacpi_notify_wq);
+	struct acpi_hp_work *hpw;
+
+	ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
+		  "Scheduling function [%p(%p, %u)] for deferred execution.\n",
+		  func, data, src));
+
+	hpw = kmalloc(sizeof(*hpw), GFP_KERNEL);
+	if (!hpw)
+		return AE_NO_MEMORY;
+
+	INIT_WORK(&hpw->work, acpi_hotplug_work_fn);
+	hpw->func = func;
+	hpw->data = data;
+	hpw->src = src;
+	/*
+	 * We can't run hotplug code in kacpid_wq/kacpid_notify_wq etc., because
+	 * the hotplug code may call driver .remove() functions, which may
+	 * invoke flush_scheduled_work()/acpi_os_wait_events_complete() to flush
+	 * these workqueues.
+	 */
+	if (!queue_work(kacpi_hotplug_wq, &hpw->work)) {
+		kfree(hpw);
+		return AE_ERROR;
+	}
+	return AE_OK;
 }
 
-EXPORT_SYMBOL(acpi_os_wait_events_complete);
 
 acpi_status
 acpi_os_create_semaphore(u32 max_units, u32 initial_units, acpi_handle * handle)
@@ -1825,25 +1843,3 @@ void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state,
 {
 	__acpi_os_prepare_extended_sleep = func;
 }
-
-
-void alloc_acpi_hp_work(acpi_handle handle, u32 type, void *context,
-			void (*func)(struct work_struct *work))
-{
-	struct acpi_hp_work *hp_work;
-	int ret;
-
-	hp_work = kmalloc(sizeof(*hp_work), GFP_KERNEL);
-	if (!hp_work)
-		return;
-
-	hp_work->handle = handle;
-	hp_work->type = type;
-	hp_work->context = context;
-
-	INIT_WORK(&hp_work->work, func);
-	ret = queue_work(kacpi_hotplug_wq, &hp_work->work);
-	if (!ret)
-		kfree(hp_work);
-}
-EXPORT_SYMBOL_GPL(alloc_acpi_hp_work);
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index d77f0bf7eda0..417876bce854 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -592,17 +592,10 @@ static void handle_root_bridge_insertion(acpi_handle handle)
 		acpi_handle_err(handle, "cannot add bridge to acpi list\n");
 }
 
-static void _handle_hotplug_event_root(struct work_struct *work)
+static void hotplug_event_root(void *data, u32 type)
 {
+	acpi_handle handle = data;
 	struct acpi_pci_root *root;
-	struct acpi_hp_work *hp_work;
-	acpi_handle handle;
-	u32 type;
-
-	hp_work = container_of(work, struct acpi_hp_work, work);
-	handle = hp_work->handle;
-	type = hp_work->type;
-	kfree(hp_work); /* allocated in handle_hotplug_event_bridge */
 
 	acpi_scan_lock_acquire();
 
@@ -654,8 +647,7 @@ static void _handle_hotplug_event_root(struct work_struct *work)
 static void handle_hotplug_event_root(acpi_handle handle, u32 type,
 					void *context)
 {
-	alloc_acpi_hp_work(handle, type, context,
-				_handle_hotplug_event_root);
+	acpi_hotplug_execute(hotplug_event_root, handle, type);
 }
 
 static acpi_status __init
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 5cd7f8c5666a..276cde70a514 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -285,8 +285,9 @@ static int acpi_scan_hot_remove(struct acpi_device *device)
 	return 0;
 }
 
-void acpi_bus_device_eject(struct acpi_device *device, u32 ost_src)
+void acpi_bus_device_eject(void *data, u32 ost_src)
 {
+	struct acpi_device *device = data;
 	acpi_handle handle = device->handle;
 	struct acpi_scan_handler *handler;
 	u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE;
@@ -327,8 +328,9 @@ void acpi_bus_device_eject(struct acpi_device *device, u32 ost_src)
 	goto out;
 }
 
-static void acpi_scan_bus_device_check(acpi_handle handle, u32 ost_source)
+static void acpi_scan_bus_device_check(void *data, u32 ost_source)
 {
+	acpi_handle handle = data;
 	struct acpi_device *device = NULL;
 	u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE;
 	int error;
@@ -363,18 +365,6 @@ static void acpi_scan_bus_device_check(acpi_handle handle, u32 ost_source)
 	unlock_device_hotplug();
 }
 
-static void acpi_scan_bus_check(void *context)
-{
-	acpi_scan_bus_device_check((acpi_handle)context,
-				   ACPI_NOTIFY_BUS_CHECK);
-}
-
-static void acpi_scan_device_check(void *context)
-{
-	acpi_scan_bus_device_check((acpi_handle)context,
-				   ACPI_NOTIFY_DEVICE_CHECK);
-}
-
 static void acpi_hotplug_unsupported(acpi_handle handle, u32 type)
 {
 	u32 ost_status;
@@ -403,18 +393,8 @@ static void acpi_hotplug_unsupported(acpi_handle handle, u32 type)
 	acpi_evaluate_hotplug_ost(handle, type, ost_status, NULL);
 }
 
-/**
- * acpi_bus_hot_remove_device: Hot-remove a device and its children.
- * @context: Address of the ACPI device object to hot-remove.
- */
-static void acpi_bus_hot_remove_device(void *context)
-{
-	acpi_bus_device_eject(context, ACPI_NOTIFY_EJECT_REQUEST);
-}
-
 static void acpi_hotplug_notify_cb(acpi_handle handle, u32 type, void *data)
 {
-	acpi_osd_exec_callback callback;
 	struct acpi_scan_handler *handler = data;
 	struct acpi_device *adev;
 	acpi_status status;
@@ -425,11 +405,9 @@ static void acpi_hotplug_notify_cb(acpi_handle handle, u32 type, void *data)
 	switch (type) {
 	case ACPI_NOTIFY_BUS_CHECK:
 		acpi_handle_debug(handle, "ACPI_NOTIFY_BUS_CHECK event\n");
-		callback = acpi_scan_bus_check;
 		break;
 	case ACPI_NOTIFY_DEVICE_CHECK:
 		acpi_handle_debug(handle, "ACPI_NOTIFY_DEVICE_CHECK event\n");
-		callback = acpi_scan_device_check;
 		break;
 	case ACPI_NOTIFY_EJECT_REQUEST:
 		acpi_handle_debug(handle, "ACPI_NOTIFY_EJECT_REQUEST event\n");
@@ -438,8 +416,7 @@ static void acpi_hotplug_notify_cb(acpi_handle handle, u32 type, void *data)
 			goto err_out;
 
 		get_device(&adev->dev);
-		callback = acpi_bus_hot_remove_device;
-		status = acpi_os_hotplug_execute(callback, adev);
+		status = acpi_hotplug_execute(acpi_bus_device_eject, adev, type);
 		if (ACPI_SUCCESS(status))
 			return;
 
@@ -449,7 +426,7 @@ static void acpi_hotplug_notify_cb(acpi_handle handle, u32 type, void *data)
 		/* non-hotplug event; possibly handled by other handler */
 		return;
 	}
-	status = acpi_os_hotplug_execute(callback, handle);
+	status = acpi_hotplug_execute(acpi_scan_bus_device_check, handle, type);
 	if (ACPI_SUCCESS(status))
 		return;
 
@@ -484,11 +461,6 @@ static ssize_t power_state_show(struct device *dev,
 
 static DEVICE_ATTR(power_state, 0444, power_state_show, NULL);
 
-static void acpi_eject_store_work(void *context)
-{
-	acpi_bus_device_eject(context, ACPI_OST_EC_OSPM_EJECT);
-}
-
 static ssize_t
 acpi_eject_store(struct device *d, struct device_attribute *attr,
 		const char *buf, size_t count)
@@ -511,7 +483,8 @@ acpi_eject_store(struct device *d, struct device_attribute *attr,
 	acpi_evaluate_hotplug_ost(acpi_device->handle, ACPI_OST_EC_OSPM_EJECT,
 				  ACPI_OST_SC_EJECT_IN_PROGRESS, NULL);
 	get_device(&acpi_device->dev);
-	status = acpi_os_hotplug_execute(acpi_eject_store_work, acpi_device);
+	status = acpi_hotplug_execute(acpi_bus_device_eject, acpi_device,
+				      ACPI_OST_EC_OSPM_EJECT);
 	if (ACPI_SUCCESS(status))
 		return count;
 
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 0b7d23b4ad95..5246ba297470 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -875,21 +875,17 @@ static void hotplug_event(acpi_handle handle, u32 type, void *data)
 		put_bridge(bridge);
 }
 
-static void hotplug_event_work(struct work_struct *work)
+static void hotplug_event_work(void *data, u32 type)
 {
-	struct acpiphp_context *context;
-	struct acpi_hp_work *hp_work;
+	struct acpiphp_context *context = data;
+	acpi_handle handle = context->handle;
 
-	hp_work = container_of(work, struct acpi_hp_work, work);
-	context = hp_work->context;
 	acpi_scan_lock_acquire();
 
-	hotplug_event(hp_work->handle, hp_work->type, context);
+	hotplug_event(handle, type, context);
 
 	acpi_scan_lock_release();
-	acpi_evaluate_hotplug_ost(hp_work->handle, hp_work->type,
-				  ACPI_OST_SC_SUCCESS, NULL);
-	kfree(hp_work); /* allocated in handle_hotplug_event() */
+	acpi_evaluate_hotplug_ost(handle, type, ACPI_OST_SC_SUCCESS, NULL);
 	put_bridge(context->func.parent);
 }
 
@@ -940,10 +936,10 @@ static void handle_hotplug_event(acpi_handle handle, u32 type, void *data)
 
 	mutex_lock(&acpiphp_context_lock);
 	context = acpiphp_get_context(handle);
-	if (context) {
+	if (context && !WARN_ON(context->handle != handle)) {
 		get_bridge(context->func.parent);
 		acpiphp_put_context(context);
-		alloc_acpi_hp_work(handle, type, context, hotplug_event_work);
+		acpi_hotplug_execute(hotplug_event_work, context, type);
 		mutex_unlock(&acpiphp_context_lock);
 		return;
 	}
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index eb37a6fb8665..d64a3010332f 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -339,15 +339,6 @@ struct acpi_bus_event {
 	u32 data;
 };
 
-struct acpi_hp_work {
-	struct work_struct work;
-	acpi_handle handle;
-	u32 type;
-	void *context;
-};
-void alloc_acpi_hp_work(acpi_handle handle, u32 type, void *context,
-			void (*func)(struct work_struct *work));
-
 extern struct kobject *acpi_kobj;
 extern int acpi_bus_generate_netlink_event(const char*, const char*, u8, int);
 void acpi_bus_private_data_handler(acpi_handle, void *);
@@ -393,6 +384,9 @@ int acpi_match_device_ids(struct acpi_device *device,
 int acpi_create_dir(struct acpi_device *);
 void acpi_remove_dir(struct acpi_device *);
 
+typedef void (*acpi_hp_callback)(void *data, u32 src);
+
+acpi_status acpi_hotplug_execute(acpi_hp_callback func, void *data, u32 src);
 
 /**
  * module_acpi_driver(acpi_driver) - Helper macro for registering an ACPI driver
diff --git a/include/acpi/acpiosxf.h b/include/acpi/acpiosxf.h
index 64b8c7639520..505cb4d59f23 100644
--- a/include/acpi/acpiosxf.h
+++ b/include/acpi/acpiosxf.h
@@ -200,9 +200,6 @@ acpi_status
 acpi_os_execute(acpi_execute_type type,
 		acpi_osd_exec_callback function, void *context);
 
-acpi_status
-acpi_os_hotplug_execute(acpi_osd_exec_callback function, void *context);
-
 void acpi_os_wait_events_complete(void);
 
 void acpi_os_sleep(u64 milliseconds);
-- 
cgit 


From 3baa976ae644f76f5cdb5be0fb26754c3bfb32cb Mon Sep 17 00:00:00 2001
From: Xiaoguang Chen <chenxg@marvell.com>
Date: Thu, 7 Nov 2013 10:28:50 +0800
Subject: cpufreq: conservative: fix requested_freq reduction issue

When decreasing frequency, requested_freq may be less than
freq_target, So requested_freq minus freq_target may be negative,
But reqested_freq's unit is unsigned int, then the negative result
will be one larger interger which may be even higher than
requested_freq.

This patch is to fix such issue. when result becomes negative,
set requested_freq as the min value of policy.

Signed-off-by: Xiaoguang Chen <chenxg@marvell.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq_conservative.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index f62d822048e6..218460fcd2e4 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -80,13 +80,18 @@ static void cs_check_cpu(int cpu, unsigned int load)
 
 	/* Check for frequency decrease */
 	if (load < cs_tuners->down_threshold) {
+		unsigned int freq_target;
 		/*
 		 * if we cannot reduce the frequency anymore, break out early
 		 */
 		if (policy->cur == policy->min)
 			return;
 
-		dbs_info->requested_freq -= get_freq_target(cs_tuners, policy);
+		freq_target = get_freq_target(cs_tuners, policy);
+		if (dbs_info->requested_freq > freq_target)
+			dbs_info->requested_freq -= freq_target;
+		else
+			dbs_info->requested_freq = policy->min;
 
 		__cpufreq_driver_target(policy, dbs_info->requested_freq,
 				CPUFREQ_RELATION_L);
-- 
cgit 


From edaf4d4aad61134e820c0431cbe3d319794899f9 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Tue, 5 Nov 2013 00:07:05 -0200
Subject: mtd: gpmi: Use devm_kzalloc()

Using devm_kzalloc() can make the code simpler.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 7ac22802e4dc..4b6d802018fb 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -1732,7 +1732,7 @@ static int gpmi_nand_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	this = kzalloc(sizeof(*this), GFP_KERNEL);
+	this = devm_kzalloc(&pdev->dev, sizeof(*this), GFP_KERNEL);
 	if (!this) {
 		pr_err("Failed to allocate per-device memory\n");
 		return -ENOMEM;
@@ -1762,7 +1762,6 @@ exit_nfc_init:
 	release_resources(this);
 exit_acquire_resources:
 	dev_err(this->dev, "driver registration failed: %d\n", ret);
-	kfree(this);
 
 	return ret;
 }
@@ -1773,7 +1772,6 @@ static int gpmi_nand_remove(struct platform_device *pdev)
 
 	gpmi_nfc_exit(this);
 	release_resources(this);
-	kfree(this);
 	return 0;
 }
 
-- 
cgit 


From aeeca404266c8ed2997905afc342ba9561f49ca7 Mon Sep 17 00:00:00 2001
From: Paul Gortmaker <paul.gortmaker@windriver.com>
Date: Thu, 7 Nov 2013 13:34:50 -0500
Subject: x86, intel-mid: Do not re-introduce usage of obsolete __cpuinit

The commit 712b6aa8731a7e148298c58cea66a5209c659e3c [Nov7 linux-next
via tip/auto-latest] ("intel_mid: Renamed *mrst* to *intel_mid*")
adds a __cpuinit.

We removed this a couple versions ago; we now want to remove
the compat no-op stubs.  Introducing new users is not what
we want to see at this point in time, as it will break once
the stubs are gone.

Cc: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Cc: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Link: http://lkml.kernel.org/r/1383849290-11250-1-git-send-email-paul.gortmaker@windriver.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/platform/intel-mid/intel-mid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index 523a1c8f7f07..f90e290f689f 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -123,7 +123,7 @@ static void __init intel_mid_time_init(void)
 	apbt_time_init();
 }
 
-static void __cpuinit intel_mid_arch_setup(void)
+static void intel_mid_arch_setup(void)
 {
 	if (boot_cpu_data.x86 == 6 && boot_cpu_data.x86_model == 0x27)
 		__intel_mid_cpu_chip = INTEL_MID_CPU_CHIP_PENWELL;
-- 
cgit 


From 6d89d2d9b5bac9dbe40ee106ceda9307b6265234 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Tue, 12 Feb 2013 12:40:22 +0000
Subject: arm/arm64: KVM: MMIO support for BE guest

Do the necessary byteswap when host and guest have different
views of the universe. Actually, the only case we need to take
care of is when the guest is BE. All the other cases are naturally
handled.

Also be careful about endianness when the data is being memcopy-ed
from/to the run buffer.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
 arch/arm/include/asm/kvm_emulate.h   | 41 +++++++++++++++++
 arch/arm/kvm/mmio.c                  | 86 +++++++++++++++++++++++++++++++-----
 arch/arm64/include/asm/kvm_emulate.h | 48 ++++++++++++++++++++
 3 files changed, 164 insertions(+), 11 deletions(-)

diff --git a/arch/arm/include/asm/kvm_emulate.h b/arch/arm/include/asm/kvm_emulate.h
index a464e8d7b6c5..8a6be05a46d7 100644
--- a/arch/arm/include/asm/kvm_emulate.h
+++ b/arch/arm/include/asm/kvm_emulate.h
@@ -157,4 +157,45 @@ static inline u32 kvm_vcpu_hvc_get_imm(struct kvm_vcpu *vcpu)
 	return kvm_vcpu_get_hsr(vcpu) & HSR_HVC_IMM_MASK;
 }
 
+static inline bool kvm_vcpu_is_be(struct kvm_vcpu *vcpu)
+{
+	return !!(*vcpu_cpsr(vcpu) & PSR_E_BIT);
+}
+
+static inline unsigned long vcpu_data_guest_to_host(struct kvm_vcpu *vcpu,
+						    unsigned long data,
+						    unsigned int len)
+{
+	if (kvm_vcpu_is_be(vcpu)) {
+		switch (len) {
+		case 1:
+			return data & 0xff;
+		case 2:
+			return be16_to_cpu(data & 0xffff);
+		default:
+			return be32_to_cpu(data);
+		}
+	}
+
+	return data;		/* Leave LE untouched */
+}
+
+static inline unsigned long vcpu_data_host_to_guest(struct kvm_vcpu *vcpu,
+						    unsigned long data,
+						    unsigned int len)
+{
+	if (kvm_vcpu_is_be(vcpu)) {
+		switch (len) {
+		case 1:
+			return data & 0xff;
+		case 2:
+			return cpu_to_be16(data & 0xffff);
+		default:
+			return cpu_to_be32(data);
+		}
+	}
+
+	return data;		/* Leave LE untouched */
+}
+
 #endif /* __ARM_KVM_EMULATE_H__ */
diff --git a/arch/arm/kvm/mmio.c b/arch/arm/kvm/mmio.c
index 0c25d9487d53..4cb5a93182e9 100644
--- a/arch/arm/kvm/mmio.c
+++ b/arch/arm/kvm/mmio.c
@@ -23,6 +23,68 @@
 
 #include "trace.h"
 
+static void mmio_write_buf(char *buf, unsigned int len, unsigned long data)
+{
+	void *datap = NULL;
+	union {
+		u8	byte;
+		u16	hword;
+		u32	word;
+		u64	dword;
+	} tmp;
+
+	switch (len) {
+	case 1:
+		tmp.byte	= data;
+		datap		= &tmp.byte;
+		break;
+	case 2:
+		tmp.hword	= data;
+		datap		= &tmp.hword;
+		break;
+	case 4:
+		tmp.word	= data;
+		datap		= &tmp.word;
+		break;
+	case 8:
+		tmp.dword	= data;
+		datap		= &tmp.dword;
+		break;
+	}
+
+	memcpy(buf, datap, len);
+}
+
+static unsigned long mmio_read_buf(char *buf, unsigned int len)
+{
+	unsigned long data = 0;
+	union {
+		u16	hword;
+		u32	word;
+		u64	dword;
+	} tmp;
+
+	switch (len) {
+	case 1:
+		data = buf[0];
+		break;
+	case 2:
+		memcpy(&tmp.hword, buf, len);
+		data = tmp.hword;
+		break;
+	case 4:
+		memcpy(&tmp.word, buf, len);
+		data = tmp.word;
+		break;
+	case 8:
+		memcpy(&tmp.dword, buf, len);
+		data = tmp.dword;
+		break;
+	}
+
+	return data;
+}
+
 /**
  * kvm_handle_mmio_return -- Handle MMIO loads after user space emulation
  * @vcpu: The VCPU pointer
@@ -33,28 +95,27 @@
  */
 int kvm_handle_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run)
 {
-	unsigned long *dest;
+	unsigned long data;
 	unsigned int len;
 	int mask;
 
 	if (!run->mmio.is_write) {
-		dest = vcpu_reg(vcpu, vcpu->arch.mmio_decode.rt);
-		*dest = 0;
-
 		len = run->mmio.len;
 		if (len > sizeof(unsigned long))
 			return -EINVAL;
 
-		memcpy(dest, run->mmio.data, len);
-
-		trace_kvm_mmio(KVM_TRACE_MMIO_READ, len, run->mmio.phys_addr,
-				*((u64 *)run->mmio.data));
+		data = mmio_read_buf(run->mmio.data, len);
 
 		if (vcpu->arch.mmio_decode.sign_extend &&
 		    len < sizeof(unsigned long)) {
 			mask = 1U << ((len * 8) - 1);
-			*dest = (*dest ^ mask) - mask;
+			data = (data ^ mask) - mask;
 		}
+
+		trace_kvm_mmio(KVM_TRACE_MMIO_READ, len, run->mmio.phys_addr,
+			       data);
+		data = vcpu_data_host_to_guest(vcpu, data, len);
+		*vcpu_reg(vcpu, vcpu->arch.mmio_decode.rt) = data;
 	}
 
 	return 0;
@@ -105,6 +166,7 @@ int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run,
 		 phys_addr_t fault_ipa)
 {
 	struct kvm_exit_mmio mmio;
+	unsigned long data;
 	unsigned long rt;
 	int ret;
 
@@ -125,13 +187,15 @@ int io_mem_abort(struct kvm_vcpu *vcpu, struct kvm_run *run,
 	}
 
 	rt = vcpu->arch.mmio_decode.rt;
+	data = vcpu_data_guest_to_host(vcpu, *vcpu_reg(vcpu, rt), mmio.len);
+
 	trace_kvm_mmio((mmio.is_write) ? KVM_TRACE_MMIO_WRITE :
 					 KVM_TRACE_MMIO_READ_UNSATISFIED,
 			mmio.len, fault_ipa,
-			(mmio.is_write) ? *vcpu_reg(vcpu, rt) : 0);
+			(mmio.is_write) ? data : 0);
 
 	if (mmio.is_write)
-		memcpy(mmio.data, vcpu_reg(vcpu, rt), mmio.len);
+		mmio_write_buf(mmio.data, mmio.len, data);
 
 	if (vgic_handle_mmio(vcpu, run, &mmio))
 		return 1;
diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
index eec073875218..b016577e37a4 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -177,4 +177,52 @@ static inline u8 kvm_vcpu_trap_get_fault(const struct kvm_vcpu *vcpu)
 	return kvm_vcpu_get_hsr(vcpu) & ESR_EL2_FSC_TYPE;
 }
 
+static inline bool kvm_vcpu_is_be(struct kvm_vcpu *vcpu)
+{
+	if (vcpu_mode_is_32bit(vcpu))
+		return !!(*vcpu_cpsr(vcpu) & COMPAT_PSR_E_BIT);
+
+	return !!(vcpu_sys_reg(vcpu, SCTLR_EL1) & (1 << 25));
+}
+
+static inline unsigned long vcpu_data_guest_to_host(struct kvm_vcpu *vcpu,
+						    unsigned long data,
+						    unsigned int len)
+{
+	if (kvm_vcpu_is_be(vcpu)) {
+		switch (len) {
+		case 1:
+			return data & 0xff;
+		case 2:
+			return be16_to_cpu(data & 0xffff);
+		case 4:
+			return be32_to_cpu(data & 0xffffffff);
+		default:
+			return be64_to_cpu(data);
+		}
+	}
+
+	return data;		/* Leave LE untouched */
+}
+
+static inline unsigned long vcpu_data_host_to_guest(struct kvm_vcpu *vcpu,
+						    unsigned long data,
+						    unsigned int len)
+{
+	if (kvm_vcpu_is_be(vcpu)) {
+		switch (len) {
+		case 1:
+			return data & 0xff;
+		case 2:
+			return cpu_to_be16(data & 0xffff);
+		case 4:
+			return cpu_to_be32(data & 0xffffffff);
+		default:
+			return cpu_to_be64(data);
+		}
+	}
+
+	return data;		/* Leave LE untouched */
+}
+
 #endif /* __ARM64_KVM_EMULATE_H__ */
-- 
cgit 


From ce94fe93d566bf381c6ecbd45010d36c5f04d692 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <marc.zyngier@arm.com>
Date: Tue, 5 Nov 2013 14:12:15 +0000
Subject: arm/arm64: KVM: PSCI: propagate caller endianness to the incoming
 vcpu

When booting a vcpu using PSCI, make sure we start it with the
endianness of the caller. Otherwise, secondaries can be pretty
unhappy to execute a BE kernel in LE mode...

This conforms to PSCI spec Rev B, 5.13.3.

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
 arch/arm/include/asm/kvm_emulate.h   | 5 +++++
 arch/arm/kvm/psci.c                  | 4 ++++
 arch/arm64/include/asm/kvm_emulate.h | 8 ++++++++
 3 files changed, 17 insertions(+)

diff --git a/arch/arm/include/asm/kvm_emulate.h b/arch/arm/include/asm/kvm_emulate.h
index 8a6be05a46d7..e844b335e33a 100644
--- a/arch/arm/include/asm/kvm_emulate.h
+++ b/arch/arm/include/asm/kvm_emulate.h
@@ -157,6 +157,11 @@ static inline u32 kvm_vcpu_hvc_get_imm(struct kvm_vcpu *vcpu)
 	return kvm_vcpu_get_hsr(vcpu) & HSR_HVC_IMM_MASK;
 }
 
+static inline void kvm_vcpu_set_be(struct kvm_vcpu *vcpu)
+{
+	*vcpu_cpsr(vcpu) |= PSR_E_BIT;
+}
+
 static inline bool kvm_vcpu_is_be(struct kvm_vcpu *vcpu)
 {
 	return !!(*vcpu_cpsr(vcpu) & PSR_E_BIT);
diff --git a/arch/arm/kvm/psci.c b/arch/arm/kvm/psci.c
index 86a693a02ba3..ae0e06b6a492 100644
--- a/arch/arm/kvm/psci.c
+++ b/arch/arm/kvm/psci.c
@@ -62,6 +62,10 @@ static unsigned long kvm_psci_vcpu_on(struct kvm_vcpu *source_vcpu)
 		vcpu_set_thumb(vcpu);
 	}
 
+	/* Propagate caller endianness */
+	if (kvm_vcpu_is_be(source_vcpu))
+		kvm_vcpu_set_be(vcpu);
+
 	*vcpu_pc(vcpu) = target_pc;
 	vcpu->arch.pause = false;
 	smp_mb();		/* Make sure the above is visible */
diff --git a/arch/arm64/include/asm/kvm_emulate.h b/arch/arm64/include/asm/kvm_emulate.h
index b016577e37a4..db805092698c 100644
--- a/arch/arm64/include/asm/kvm_emulate.h
+++ b/arch/arm64/include/asm/kvm_emulate.h
@@ -177,6 +177,14 @@ static inline u8 kvm_vcpu_trap_get_fault(const struct kvm_vcpu *vcpu)
 	return kvm_vcpu_get_hsr(vcpu) & ESR_EL2_FSC_TYPE;
 }
 
+static inline void kvm_vcpu_set_be(struct kvm_vcpu *vcpu)
+{
+	if (vcpu_mode_is_32bit(vcpu))
+		*vcpu_cpsr(vcpu) |= COMPAT_PSR_E_BIT;
+	else
+		vcpu_sys_reg(vcpu, SCTLR_EL1) |= (1 << 25);
+}
+
 static inline bool kvm_vcpu_is_be(struct kvm_vcpu *vcpu)
 {
 	if (vcpu_mode_is_32bit(vcpu))
-- 
cgit 


From 656a22a105c8135a515daae3d79ede7b472c18ec Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 18:40:01 +0100
Subject: ASoC: mid-x86: Use WARN_ON() instead of BUG_ON()

BUG_ON() is rather useless for debugging as it leads to panic().
Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/mid-x86/sst_platform.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/sound/soc/mid-x86/sst_platform.c b/sound/soc/mid-x86/sst_platform.c
index 392fc0b8f5b8..b6b5eb698d33 100644
--- a/sound/soc/mid-x86/sst_platform.c
+++ b/sound/soc/mid-x86/sst_platform.c
@@ -40,7 +40,8 @@ static DEFINE_MUTEX(sst_lock);
 
 int sst_register_dsp(struct sst_device *dev)
 {
-	BUG_ON(!dev);
+	if (WARN_ON(!dev))
+		return -EINVAL;
 	if (!try_module_get(dev->dev->driver->owner))
 		return -ENODEV;
 	mutex_lock(&sst_lock);
@@ -59,7 +60,8 @@ EXPORT_SYMBOL_GPL(sst_register_dsp);
 
 int sst_unregister_dsp(struct sst_device *dev)
 {
-	BUG_ON(!dev);
+	if (WARN_ON(!dev))
+		return -EINVAL;
 	if (dev != sst)
 		return -EINVAL;
 
-- 
cgit 


From 96b61bc546519ae90317980294c161c86bcd140e Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 18:40:02 +0100
Subject: ASoC: omap: Use WARN_ON() instead of BUG_ON()

Use WARN_ON() and handle the error cases accordingly.

Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/omap/n810.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/sound/soc/omap/n810.c b/sound/soc/omap/n810.c
index 5e8d640d314f..6d216cb6c19b 100644
--- a/sound/soc/omap/n810.c
+++ b/sound/soc/omap/n810.c
@@ -344,8 +344,11 @@ static int __init n810_soc_init(void)
 	clk_set_parent(sys_clkout2_src, func96m_clk);
 	clk_set_rate(sys_clkout2, 12000000);
 
-	BUG_ON((gpio_request(N810_HEADSET_AMP_GPIO, "hs_amp") < 0) ||
-	       (gpio_request(N810_SPEAKER_AMP_GPIO, "spk_amp") < 0));
+	if (WARN_ON((gpio_request(N810_HEADSET_AMP_GPIO, "hs_amp") < 0) ||
+		    (gpio_request(N810_SPEAKER_AMP_GPIO, "spk_amp") < 0))) {
+		err = -EINVAL;
+		goto err4;
+	}
 
 	gpio_direction_output(N810_HEADSET_AMP_GPIO, 0);
 	gpio_direction_output(N810_SPEAKER_AMP_GPIO, 0);
-- 
cgit 


From 8a2e2c86e979a9b3a53e880be65d5fd12820b932 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 18:40:03 +0100
Subject: ASoC: pxa: Use WARN_ON() instead of BUG_ON()

Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/pxa/pxa2xx-i2s.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/pxa/pxa2xx-i2s.c b/sound/soc/pxa/pxa2xx-i2s.c
index d5340a088858..c0d648d3339f 100644
--- a/sound/soc/pxa/pxa2xx-i2s.c
+++ b/sound/soc/pxa/pxa2xx-i2s.c
@@ -165,7 +165,8 @@ static int pxa2xx_i2s_hw_params(struct snd_pcm_substream *substream,
 {
 	struct snd_dmaengine_dai_dma_data *dma_data;
 
-	BUG_ON(IS_ERR(clk_i2s));
+	if (WARN_ON(IS_ERR(clk_i2s)))
+		return -EINVAL;
 	clk_prepare_enable(clk_i2s);
 	clk_ena = 1;
 	pxa_i2s_wait();
-- 
cgit 


From 4a318f1e6c4331633a91ad67b782860c76d8894b Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 18:40:04 +0100
Subject: ASoC: s6000: Use WARN_ON() instead of BUG_ON()

Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/s6000/s6000-pcm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/s6000/s6000-pcm.c b/sound/soc/s6000/s6000-pcm.c
index d0740a762963..5cfaa5464eba 100644
--- a/sound/soc/s6000/s6000-pcm.c
+++ b/sound/soc/s6000/s6000-pcm.c
@@ -90,7 +90,8 @@ static void s6000_pcm_enqueue_dma(struct snd_pcm_substream *substream)
 		return;
 	}
 
-	BUG_ON(period_size & 15);
+	if (WARN_ON(period_size & 15))
+		return;
 	s6dmac_put_fifo(DMA_MASK_DMAC(channel), DMA_INDEX_CHNL(channel),
 			src, dst, period_size);
 
-- 
cgit 


From 8b14719bebfe022f3637c323e76c88b2bc061a61 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 18:40:05 +0100
Subject: ASoC: rcar: Use WARN_ON() instead of BUG_ON()

Use WARN_ON() and handle the error cases accordingly.

Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/sh/rcar/scu.c | 3 ++-
 sound/soc/sh/rcar/ssi.c | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/sound/soc/sh/rcar/scu.c b/sound/soc/sh/rcar/scu.c
index 2df2e9150b89..92e3f51c3a4f 100644
--- a/sound/soc/sh/rcar/scu.c
+++ b/sound/soc/sh/rcar/scu.c
@@ -192,7 +192,8 @@ static struct rsnd_mod_ops rsnd_scu_ops = {
 
 struct rsnd_mod *rsnd_scu_mod_get(struct rsnd_priv *priv, int id)
 {
-	BUG_ON(id < 0 || id >= rsnd_scu_nr(priv));
+	if (WARN_ON(id < 0 || id >= rsnd_scu_nr(priv)))
+		id = 0;
 
 	return &((struct rsnd_scu *)(priv->scu) + id)->mod;
 }
diff --git a/sound/soc/sh/rcar/ssi.c b/sound/soc/sh/rcar/ssi.c
index fae26d3f79d2..fc010d652069 100644
--- a/sound/soc/sh/rcar/ssi.c
+++ b/sound/soc/sh/rcar/ssi.c
@@ -619,7 +619,8 @@ struct rsnd_mod *rsnd_ssi_mod_get_frm_dai(struct rsnd_priv *priv,
 
 struct rsnd_mod *rsnd_ssi_mod_get(struct rsnd_priv *priv, int id)
 {
-	BUG_ON(id < 0 || id >= rsnd_ssi_nr(priv));
+	if (WARN_ON(id < 0 || id >= rsnd_ssi_nr(priv)))
+		id = 0;
 
 	return &(((struct rsnd_ssiu *)(priv->ssiu))->ssi + id)->mod;
 }
-- 
cgit 


From 5f29d4455992ab2edcaa377d4ef61b60240781ac Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 18:40:06 +0100
Subject: ASoC: sh: Use WARN_ON() instead of BUG_ON()

Use WARN_ON() and handle the error cases accordingly.

Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/sh/siu_dai.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/sh/siu_dai.c b/sound/soc/sh/siu_dai.c
index 9dc24ffa892a..d55babee14f8 100644
--- a/sound/soc/sh/siu_dai.c
+++ b/sound/soc/sh/siu_dai.c
@@ -543,7 +543,8 @@ static void siu_dai_shutdown(struct snd_pcm_substream *substream,
 	/* Stop the siu if the other stream is not using it */
 	if (!port_info->play_cap) {
 		/* during stmread or stmwrite ? */
-		BUG_ON(port_info->playback.rw_flg || port_info->capture.rw_flg);
+		if (WARN_ON(port_info->playback.rw_flg || port_info->capture.rw_flg))
+			return;
 		siu_dai_spbstop(port_info);
 		siu_dai_stop(port_info);
 	}
-- 
cgit 


From cb1b10262f986f865fdbafd0af3327f15f83b8af Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 18:40:07 +0100
Subject: ASoC: txx9: Use WARN_ON() instead of BUG_ON()

Use WARN_ON() and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/txx9/txx9aclc.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/sound/soc/txx9/txx9aclc.c b/sound/soc/txx9/txx9aclc.c
index 45a6428cba8d..fbd077f4de72 100644
--- a/sound/soc/txx9/txx9aclc.c
+++ b/sound/soc/txx9/txx9aclc.c
@@ -115,8 +115,8 @@ static void txx9aclc_dma_complete(void *arg)
 	spin_lock_irqsave(&dmadata->dma_lock, flags);
 	if (dmadata->frag_count >= 0) {
 		dmadata->dmacount--;
-		BUG_ON(dmadata->dmacount < 0);
-		tasklet_schedule(&dmadata->tasklet);
+		if (!WARN_ON(dmadata->dmacount < 0))
+			tasklet_schedule(&dmadata->tasklet);
 	}
 	spin_unlock_irqrestore(&dmadata->dma_lock, flags);
 }
@@ -181,7 +181,10 @@ static void txx9aclc_dma_tasklet(unsigned long data)
 		spin_unlock_irqrestore(&dmadata->dma_lock, flags);
 		return;
 	}
-	BUG_ON(dmadata->dmacount >= NR_DMA_CHAIN);
+	if (WARN_ON(dmadata->dmacount >= NR_DMA_CHAIN)) {
+		spin_unlock_irqrestore(&dmadata->dma_lock, flags);
+		return;
+	}
 	while (dmadata->dmacount < NR_DMA_CHAIN) {
 		dmadata->dmacount++;
 		spin_unlock_irqrestore(&dmadata->dma_lock, flags);
-- 
cgit 


From a361f4525d5e01d7ebe2adafc263e107a34834b2 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 6 Nov 2013 11:07:12 +0100
Subject: ASoC: wm8350: Replace BUG() with WARN()

BUG() used in the driver is just to spit the stack trace on buggy
points, not really needed to stop the whole operation.  For that
purpose, it'd be more convenient to use WARN() instead with more
error information.

Cc: patches@opensource.wolfsonmicro.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm8350.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wm8350.c b/sound/soc/codecs/wm8350.c
index af1318ddb062..a183dcf3d5c1 100644
--- a/sound/soc/codecs/wm8350.c
+++ b/sound/soc/codecs/wm8350.c
@@ -274,7 +274,7 @@ static int pga_event(struct snd_soc_dapm_widget *w,
 		break;
 
 	default:
-		BUG();
+		WARN(1, "Invalid shift %d\n", w->shift);
 		return -1;
 	}
 
-- 
cgit 


From d9dea39671ff0066fa031d6469f251447beed14b Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 6 Nov 2013 11:07:13 +0100
Subject: ASoC: wm8900: Replace BUG() with WARN()

BUG() used in the driver is just to spit the stack trace on buggy
points, not really needed to stop the whole operation.  For that
purpose, it'd be more convenient to use WARN() instead with more
error information.

Cc: patches@opensource.wolfsonmicro.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm8900.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wm8900.c b/sound/soc/codecs/wm8900.c
index de67e74dca0c..734209e252c3 100644
--- a/sound/soc/codecs/wm8900.c
+++ b/sound/soc/codecs/wm8900.c
@@ -279,7 +279,8 @@ static int wm8900_hp_event(struct snd_soc_dapm_widget *w,
 		break;
 
 	default:
-		BUG();
+		WARN(1, "Invalid event %d\n", event);
+		break;
 	}
 
 	return 0;
-- 
cgit 


From 8d8bb1ad1ef6e799e85de50f696d2443aa3e84cb Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 6 Nov 2013 11:07:14 +0100
Subject: ASoC: wm8904: Replace BUG() with WARN()

BUG() used in the driver is just to spit the stack trace on buggy
points, not really needed to stop the whole operation.  For that
purpose, it'd be more convenient to use WARN() instead with more
error information.

Cc: patches@opensource.wolfsonmicro.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm8904.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c
index c173ab3cd18a..3938fb1c203e 100644
--- a/sound/soc/codecs/wm8904.c
+++ b/sound/soc/codecs/wm8904.c
@@ -741,7 +741,7 @@ static int out_pga_event(struct snd_soc_dapm_widget *w,
 		dcs_r = 3;
 		break;
 	default:
-		BUG();
+		WARN(1, "Invalid reg %d\n", reg);
 		return -EINVAL;
 	}
 
-- 
cgit 


From a845d59de67d29ac28c39684dfffd252c9d37215 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 6 Nov 2013 11:07:15 +0100
Subject: ASoC: wm8958: Replace BUG() with WARN()

BUG() used in the driver is just to spit the stack trace on buggy
points, not really needed to stop the whole operation.  For that
purpose, it'd be more convenient to use WARN() instead with more
error information.

Cc: patches@opensource.wolfsonmicro.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm8958-dsp2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wm8958-dsp2.c b/sound/soc/codecs/wm8958-dsp2.c
index b0710d817a65..b7488f190d2b 100644
--- a/sound/soc/codecs/wm8958-dsp2.c
+++ b/sound/soc/codecs/wm8958-dsp2.c
@@ -348,7 +348,7 @@ static void wm8958_dsp_apply(struct snd_soc_codec *codec, int path, int start)
 		aif = 1;
 		break;
 	default:
-		BUG();
+		WARN(1, "Invalid path %d\n", path);
 		return;
 	}
 
-- 
cgit 


From 69134367c34aa35e895f10911ed3587ba270dcb0 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 6 Nov 2013 11:07:16 +0100
Subject: ASoC: wm8962: Replace BUG() with WARN()

BUG() used in the driver is just to spit the stack trace on buggy
points, not really needed to stop the whole operation.  For that
purpose, it'd be more convenient to use WARN() instead with more
error information.

Cc: patches@opensource.wolfsonmicro.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm8962.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 11d80f3b6137..22e42e788649 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -1845,7 +1845,7 @@ static int cp_event(struct snd_soc_dapm_widget *w,
 		break;
 
 	default:
-		BUG();
+		WARN(1, "Invalid event %d\n", event);
 		return -EINVAL;
 	}
 
@@ -1937,7 +1937,7 @@ static int hp_event(struct snd_soc_dapm_widget *w,
 		break;
 
 	default:
-		BUG();
+		WARN(1, "Invalid event %d\n", event);
 		return -EINVAL;
 	
 	}
@@ -1966,7 +1966,7 @@ static int out_pga_event(struct snd_soc_dapm_widget *w,
 		reg = WM8962_SPKOUTL_VOLUME;
 		break;
 	default:
-		BUG();
+		WARN(1, "Invalid shift %d\n", w->shift);
 		return -EINVAL;
 	}
 
@@ -1974,7 +1974,7 @@ static int out_pga_event(struct snd_soc_dapm_widget *w,
 	case SND_SOC_DAPM_POST_PMU:
 		return snd_soc_write(codec, reg, snd_soc_read(codec, reg));
 	default:
-		BUG();
+		WARN(1, "Invalid event %d\n", event);
 		return -EINVAL;
 	}
 }
@@ -1997,7 +1997,7 @@ static int dsp2_event(struct snd_soc_dapm_widget *w,
 		break;
 
 	default:
-		BUG();
+		WARN(1, "Invalid event %d\n", event);
 		return -EINVAL;
 	}
 
-- 
cgit 


From d8e9a54414b92efd87e32c7320c894e7d0595158 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 6 Nov 2013 11:07:17 +0100
Subject: ASoC: wm8996: Replace BUG() with WARN()

BUG() used in the driver is just to spit the stack trace on buggy
points, not really needed to stop the whole operation.  For that
purpose, it'd be more convenient to use WARN() instead with more
error information.

Cc: patches@opensource.wolfsonmicro.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm8996.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c
index 46fe83d2b224..d666de03704a 100644
--- a/sound/soc/codecs/wm8996.c
+++ b/sound/soc/codecs/wm8996.c
@@ -608,7 +608,7 @@ static int bg_event(struct snd_soc_dapm_widget *w,
 		wm8996_bg_disable(codec);
 		break;
 	default:
-		BUG();
+		WARN(1, "Invalid event %d\n", event);
 		ret = -EINVAL;
 	}
 
@@ -625,7 +625,7 @@ static int cp_event(struct snd_soc_dapm_widget *w,
 		msleep(5);
 		break;
 	default:
-		BUG();
+		WARN(1, "Invalid event %d\n", event);
 		ret = -EINVAL;
 	}
 
@@ -646,7 +646,7 @@ static int rmv_short_event(struct snd_soc_dapm_widget *w,
 		wm8996->hpout_pending |= w->shift;
 		break;
 	default:
-		BUG();
+		WARN(1, "Invalid event %d\n", event);
 		return -EINVAL;
 	}
 
@@ -767,7 +767,7 @@ static int dcs_start(struct snd_soc_dapm_widget *w,
 		wm8996->dcs_pending |= 1 << w->shift;
 		break;
 	default:
-		BUG();
+		WARN(1, "Invalid event %d\n", event);
 		return -EINVAL;
 	}
 
@@ -1656,7 +1656,7 @@ static int wm8996_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 		lrclk_rx_reg = WM8996_AIF2_RX_LRCLK_2;
 		break;
 	default:
-		BUG();
+		WARN(1, "Invalid dai id %d\n", dai->id);
 		return -EINVAL;
 	}
 
@@ -1768,7 +1768,7 @@ static int wm8996_hw_params(struct snd_pcm_substream *substream,
 		dsp_shift = WM8996_DSP2_DIV_SHIFT;
 		break;
 	default:
-		BUG();
+		WARN(1, "Invalid dai id %d\n", dai->id);
 		return -EINVAL;
 	}
 
-- 
cgit 


From 9a743400a032766a2b79c88233ea3f6430a59b86 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 6 Nov 2013 11:07:18 +0100
Subject: ASoC: wm_hubs: Replace BUG() with WARN()

BUG() used in the driver is just to spit the stack trace on buggy
points, not really needed to stop the whole operation.  For that
purpose, it'd be more convenient to use WARN() instead with more
error information.

Cc: patches@opensource.wolfsonmicro.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm_hubs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wm_hubs.c b/sound/soc/codecs/wm_hubs.c
index 01daf655e20b..b371066dd5bc 100644
--- a/sound/soc/codecs/wm_hubs.c
+++ b/sound/soc/codecs/wm_hubs.c
@@ -611,7 +611,7 @@ static int earpiece_event(struct snd_soc_dapm_widget *w,
 		break;
 
 	default:
-		BUG();
+		WARN(1, "Invalid event %d\n", event);
 		break;
 	}
 
-- 
cgit 


From a6ed0608bd289b45a9e42e3b0f33ff55bdac9b0f Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 6 Nov 2013 11:07:19 +0100
Subject: ASoC: Replace BUG() with WARN()

BUG() used in the driver is just to spit the stack trace on buggy
points, not really needed to stop the whole operation.  For that
purpose, it'd be more convenient to use WARN() instead with more
error information.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/soc-cache.c | 6 ++++--
 sound/soc/soc-dapm.c  | 6 +++---
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/sound/soc/soc-cache.c b/sound/soc/soc-cache.c
index e72f55428f0b..223dc0636fe5 100644
--- a/sound/soc/soc-cache.c
+++ b/sound/soc/soc-cache.c
@@ -39,7 +39,8 @@ static bool snd_soc_set_cache_val(void *base, unsigned int idx,
 		break;
 	}
 	default:
-		BUG();
+		WARN(1, "Invalid word_size %d\n", word_size);
+		break;
 	}
 	return false;
 }
@@ -60,7 +61,8 @@ static unsigned int snd_soc_get_cache_val(const void *base, unsigned int idx,
 		return cache[idx];
 	}
 	default:
-		BUG();
+		WARN(1, "Invalid word_size %d\n", word_size);
+		break;
 	}
 	/* unreachable */
 	return -1;
diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index b2949aed1ac2..974a4ce14239 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -1412,7 +1412,7 @@ static void dapm_seq_check_event(struct snd_soc_card *card,
 		power = 0;
 		break;
 	default:
-		BUG();
+		WARN(1, "Unknown event %d\n", event);
 		return;
 	}
 
@@ -2001,7 +2001,7 @@ static ssize_t dapm_bias_read_file(struct file *file, char __user *user_buf,
 		level = "Off\n";
 		break;
 	default:
-		BUG();
+		WARN(1, "Unknown bias_level %d\n", dapm->bias_level);
 		level = "Unknown\n";
 		break;
 	}
@@ -3416,7 +3416,7 @@ static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w,
 		break;
 
 	default:
-		BUG();
+		WARN(1, "Unknown event %d\n", event);
 		return -EINVAL;
 	}
 
-- 
cgit 


From 6c452bdac799e5ab94d658ea3517cfd57d832e6e Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 5 Nov 2013 18:40:00 +0100
Subject: ASoC: wm_adsp: Fix BUG_ON() and WARN_ON() usages

This patch does:
- Move the sanity check with WARN_ON() in wm_adsp_region_to_reg() and
  remove the checks in the callers,
- Fix wrong WARN_ON() usages, replaced with WARN(),
- Fix unreachable or wrong BUG_ON() usages and replace with WARN_ON().

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm_adsp.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index b38f3506418f..8dfce8f1ad2f 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -341,6 +341,8 @@ static struct wm_adsp_region const *wm_adsp_find_region(struct wm_adsp *dsp,
 static unsigned int wm_adsp_region_to_reg(struct wm_adsp_region const *region,
 					  unsigned int offset)
 {
+	if (WARN_ON(!region))
+		return offset;
 	switch (region->type) {
 	case WMFW_ADSP1_PM:
 		return region->base + (offset * 3);
@@ -353,7 +355,7 @@ static unsigned int wm_adsp_region_to_reg(struct wm_adsp_region const *region,
 	case WMFW_ADSP1_ZM:
 		return region->base + (offset * 2);
 	default:
-		WARN_ON(NULL != "Unknown memory region type");
+		WARN(1, "Unknown memory region type");
 		return offset;
 	}
 }
@@ -602,7 +604,7 @@ static int wm_adsp_load(struct wm_adsp *dsp)
 		break;
 
 	default:
-		BUG_ON(NULL == "Unknown DSP type");
+		WARN(1, "Unknown DSP type");
 		goto out_fw;
 	}
 
@@ -642,27 +644,22 @@ static int wm_adsp_load(struct wm_adsp *dsp)
 			reg = offset;
 			break;
 		case WMFW_ADSP1_PM:
-			BUG_ON(!mem);
 			region_name = "PM";
 			reg = wm_adsp_region_to_reg(mem, offset);
 			break;
 		case WMFW_ADSP1_DM:
-			BUG_ON(!mem);
 			region_name = "DM";
 			reg = wm_adsp_region_to_reg(mem, offset);
 			break;
 		case WMFW_ADSP2_XM:
-			BUG_ON(!mem);
 			region_name = "XM";
 			reg = wm_adsp_region_to_reg(mem, offset);
 			break;
 		case WMFW_ADSP2_YM:
-			BUG_ON(!mem);
 			region_name = "YM";
 			reg = wm_adsp_region_to_reg(mem, offset);
 			break;
 		case WMFW_ADSP1_ZM:
-			BUG_ON(!mem);
 			region_name = "ZM";
 			reg = wm_adsp_region_to_reg(mem, offset);
 			break;
@@ -901,10 +898,8 @@ static int wm_adsp_setup_algs(struct wm_adsp *dsp)
 		break;
 	}
 
-	if (mem == NULL) {
-		BUG_ON(mem != NULL);
+	if (WARN_ON(!mem))
 		return -EINVAL;
-	}
 
 	switch (dsp->type) {
 	case WMFW_ADSP1:
@@ -998,7 +993,7 @@ static int wm_adsp_setup_algs(struct wm_adsp *dsp)
 		break;
 
 	default:
-		BUG_ON(NULL == "Unknown DSP type");
+		WARN(1, "Unknown DSP type");
 		return -EINVAL;
 	}
 
-- 
cgit 


From bf4edea863c435c302041cf8bb01c8b3ca729449 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 7 Nov 2013 18:38:47 +0100
Subject: ASoC: dapm: Use WARN_ON() instead of BUG_ON()

Leaving BUG_ON() in a core layer like dapm is rather inappropriate as
it leads to panic(), even though sanity checks might be still useful
for debugging.
Instead, Use WARN_ON(), and handle the error cases accordingly.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/soc-dapm.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
index 974a4ce14239..47dfe17ed4e8 100644
--- a/sound/soc/soc-dapm.c
+++ b/sound/soc/soc-dapm.c
@@ -1444,7 +1444,7 @@ static void dapm_seq_run_coalesced(struct snd_soc_card *card,
 			       power_list)->reg;
 
 	list_for_each_entry(w, pending, power_list) {
-		BUG_ON(reg != w->reg);
+		WARN_ON(reg != w->reg);
 		w->power = w->new_power;
 
 		mask |= w->mask << w->shift;
@@ -3329,8 +3329,9 @@ static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w,
 	u64 fmt;
 	int ret;
 
-	BUG_ON(!config);
-	BUG_ON(list_empty(&w->sources) || list_empty(&w->sinks));
+	if (WARN_ON(!config) ||
+	    WARN_ON(list_empty(&w->sources) || list_empty(&w->sinks)))
+		return -EINVAL;
 
 	/* We only support a single source and sink, pick the first */
 	source_p = list_first_entry(&w->sources, struct snd_soc_dapm_path,
@@ -3338,9 +3339,10 @@ static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w,
 	sink_p = list_first_entry(&w->sinks, struct snd_soc_dapm_path,
 				  list_source);
 
-	BUG_ON(!source_p || !sink_p);
-	BUG_ON(!sink_p->source || !source_p->sink);
-	BUG_ON(!source_p->source || !sink_p->sink);
+	if (WARN_ON(!source_p || !sink_p) ||
+	    WARN_ON(!sink_p->source || !source_p->sink) ||
+	    WARN_ON(!source_p->source || !sink_p->sink))
+		return -EINVAL;
 
 	source = source_p->source->priv;
 	sink = sink_p->sink->priv;
-- 
cgit 


From dbcbc95cd85854588ac80c0a6d98586fa2129418 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Wed, 6 Nov 2013 20:55:39 -0800
Subject: iscsi-target: Do not generate REJECTs for zero-length DataOUT

This patch changes iscsit_check_dataout_hdr() to no longer generate
REJECTs for zero-length DataOUTs, and instead simply ignore these
requests.

This follows RFC-3720, Section 10.7.7.  DataSegmentLength

  "This is the data payload length of a SCSI Data-In or SCSI Data-Out PDU.
   The sending of 0 length data segments should be avoided, but initiators
   and targets MUST be able to properly receive 0 length data segments."

Reported-by: Santosh Kulkarni <santosh.kulkarni@calsoftinc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/iscsi/iscsi_target.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index e183352a0645..ab64cbbb4976 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -1249,9 +1249,8 @@ iscsit_check_dataout_hdr(struct iscsi_conn *conn, unsigned char *buf,
 	int rc;
 
 	if (!payload_length) {
-		pr_err("DataOUT payload is ZERO, protocol error.\n");
-		return iscsit_add_reject(conn, ISCSI_REASON_PROTOCOL_ERROR,
-					 buf);
+		pr_warn("DataOUT payload is ZERO, ignoring.\n");
+		return 0;
 	}
 
 	/* iSCSI write */
@@ -1481,7 +1480,7 @@ EXPORT_SYMBOL(iscsit_check_dataout_payload);
 
 static int iscsit_handle_data_out(struct iscsi_conn *conn, unsigned char *buf)
 {
-	struct iscsi_cmd *cmd;
+	struct iscsi_cmd *cmd = NULL;
 	struct iscsi_data *hdr = (struct iscsi_data *)buf;
 	int rc;
 	bool data_crc_failed = false;
-- 
cgit 


From 73958329ea1fe0dc149b51e5d8703015f65a03e0 Mon Sep 17 00:00:00 2001
From: Nikolay Aleksandrov <nikolay@redhat.com>
Date: Tue, 5 Nov 2013 13:51:41 +0100
Subject: bonding: extend round-robin mode with packets_per_slave

This patch aims to extend round-robin mode with a new option called
packets_per_slave which can have the following values and effects:
0 - choose a random slave
1 (default) - standard round-robin, 1 packet per slave
 >1 - round-robin when >1 packets have been transmitted per slave
The allowed values are between 0 and 65535.
This patch also fixes the comment style in bond_xmit_roundrobin().

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Acked-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_main.c  | 55 ++++++++++++++++++++++++++++++++++++----
 drivers/net/bonding/bond_sysfs.c | 49 +++++++++++++++++++++++++++++++++++
 drivers/net/bonding/bonding.h    |  3 ++-
 3 files changed, 101 insertions(+), 6 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index a141f406cb98..4dd5ee2a34cc 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -79,6 +79,7 @@
 #include <net/pkt_sched.h>
 #include <linux/rculist.h>
 #include <net/flow_keys.h>
+#include <linux/reciprocal_div.h>
 #include "bonding.h"
 #include "bond_3ad.h"
 #include "bond_alb.h"
@@ -111,6 +112,7 @@ static char *fail_over_mac;
 static int all_slaves_active;
 static struct bond_params bonding_defaults;
 static int resend_igmp = BOND_DEFAULT_RESEND_IGMP;
+static int packets_per_slave = 1;
 
 module_param(max_bonds, int, 0);
 MODULE_PARM_DESC(max_bonds, "Max number of bonded devices");
@@ -183,6 +185,10 @@ MODULE_PARM_DESC(all_slaves_active, "Keep all frames received on an interface"
 module_param(resend_igmp, int, 0);
 MODULE_PARM_DESC(resend_igmp, "Number of IGMP membership reports to send on "
 			      "link failure");
+module_param(packets_per_slave, int, 0);
+MODULE_PARM_DESC(packets_per_slave, "Packets to send per slave in balance-rr "
+				    "mode; 0 for a random slave, 1 packet per "
+				    "slave (default), >1 packets per slave.");
 
 /*----------------------------- Global variables ----------------------------*/
 
@@ -3574,14 +3580,44 @@ void bond_xmit_slave_id(struct bonding *bond, struct sk_buff *skb, int slave_id)
 	kfree_skb(skb);
 }
 
+/**
+ * bond_rr_gen_slave_id - generate slave id based on packets_per_slave
+ * @bond: bonding device to use
+ *
+ * Based on the value of the bonding device's packets_per_slave parameter
+ * this function generates a slave id, which is usually used as the next
+ * slave to transmit through.
+ */
+static u32 bond_rr_gen_slave_id(struct bonding *bond)
+{
+	int packets_per_slave = bond->params.packets_per_slave;
+	u32 slave_id;
+
+	switch (packets_per_slave) {
+	case 0:
+		slave_id = prandom_u32();
+		break;
+	case 1:
+		slave_id = bond->rr_tx_counter;
+		break;
+	default:
+		slave_id = reciprocal_divide(bond->rr_tx_counter,
+					     packets_per_slave);
+		break;
+	}
+	bond->rr_tx_counter++;
+
+	return slave_id;
+}
+
 static int bond_xmit_roundrobin(struct sk_buff *skb, struct net_device *bond_dev)
 {
 	struct bonding *bond = netdev_priv(bond_dev);
 	struct iphdr *iph = ip_hdr(skb);
 	struct slave *slave;
+	u32 slave_id;
 
-	/*
-	 * Start with the curr_active_slave that joined the bond as the
+	/* Start with the curr_active_slave that joined the bond as the
 	 * default for sending IGMP traffic.  For failover purposes one
 	 * needs to maintain some consistency for the interface that will
 	 * send the join/membership reports.  The curr_active_slave found
@@ -3594,8 +3630,8 @@ static int bond_xmit_roundrobin(struct sk_buff *skb, struct net_device *bond_dev
 		else
 			bond_xmit_slave_id(bond, skb, 0);
 	} else {
-		bond_xmit_slave_id(bond, skb,
-				   bond->rr_tx_counter++ % bond->slave_cnt);
+		slave_id = bond_rr_gen_slave_id(bond);
+		bond_xmit_slave_id(bond, skb, slave_id % bond->slave_cnt);
 	}
 
 	return NETDEV_TX_OK;
@@ -4099,6 +4135,12 @@ static int bond_check_params(struct bond_params *params)
 		resend_igmp = BOND_DEFAULT_RESEND_IGMP;
 	}
 
+	if (packets_per_slave < 0 || packets_per_slave > USHRT_MAX) {
+		pr_warn("Warning: packets_per_slave (%d) should be between 0 and %u resetting to 1\n",
+			packets_per_slave, USHRT_MAX);
+		packets_per_slave = 1;
+	}
+
 	/* reset values for TLB/ALB */
 	if ((bond_mode == BOND_MODE_TLB) ||
 	    (bond_mode == BOND_MODE_ALB)) {
@@ -4288,7 +4330,10 @@ static int bond_check_params(struct bond_params *params)
 	params->resend_igmp = resend_igmp;
 	params->min_links = min_links;
 	params->lp_interval = BOND_ALB_DEFAULT_LP_INTERVAL;
-
+	if (packets_per_slave > 1)
+		params->packets_per_slave = reciprocal_value(packets_per_slave);
+	else
+		params->packets_per_slave = packets_per_slave;
 	if (primary) {
 		strncpy(params->primary, primary, IFNAMSIZ);
 		params->primary[IFNAMSIZ - 1] = 0;
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 47749c970a01..75dc4d0efb34 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -40,6 +40,7 @@
 #include <net/net_namespace.h>
 #include <net/netns/generic.h>
 #include <linux/nsproxy.h>
+#include <linux/reciprocal_div.h>
 
 #include "bonding.h"
 
@@ -1640,6 +1641,53 @@ out:
 static DEVICE_ATTR(lp_interval, S_IRUGO | S_IWUSR,
 		   bonding_show_lp_interval, bonding_store_lp_interval);
 
+static ssize_t bonding_show_packets_per_slave(struct device *d,
+					      struct device_attribute *attr,
+					      char *buf)
+{
+	struct bonding *bond = to_bond(d);
+	int packets_per_slave = bond->params.packets_per_slave;
+
+	if (packets_per_slave > 1)
+		packets_per_slave = reciprocal_value(packets_per_slave);
+
+	return sprintf(buf, "%d\n", packets_per_slave);
+}
+
+static ssize_t bonding_store_packets_per_slave(struct device *d,
+					       struct device_attribute *attr,
+					       const char *buf, size_t count)
+{
+	struct bonding *bond = to_bond(d);
+	int new_value, ret = count;
+
+	if (sscanf(buf, "%d", &new_value) != 1) {
+		pr_err("%s: no packets_per_slave value specified.\n",
+		       bond->dev->name);
+		ret = -EINVAL;
+		goto out;
+	}
+	if (new_value < 0 || new_value > USHRT_MAX) {
+		pr_err("%s: packets_per_slave must be between 0 and %u\n",
+		       bond->dev->name, USHRT_MAX);
+		ret = -EINVAL;
+		goto out;
+	}
+	if (bond->params.mode != BOND_MODE_ROUNDROBIN)
+		pr_warn("%s: Warning: packets_per_slave has effect only in balance-rr mode\n",
+			bond->dev->name);
+	if (new_value > 1)
+		bond->params.packets_per_slave = reciprocal_value(new_value);
+	else
+		bond->params.packets_per_slave = new_value;
+out:
+	return ret;
+}
+
+static DEVICE_ATTR(packets_per_slave, S_IRUGO | S_IWUSR,
+		   bonding_show_packets_per_slave,
+		   bonding_store_packets_per_slave);
+
 static struct attribute *per_bond_attrs[] = {
 	&dev_attr_slaves.attr,
 	&dev_attr_mode.attr,
@@ -1671,6 +1719,7 @@ static struct attribute *per_bond_attrs[] = {
 	&dev_attr_resend_igmp.attr,
 	&dev_attr_min_links.attr,
 	&dev_attr_lp_interval.attr,
+	&dev_attr_packets_per_slave.attr,
 	NULL,
 };
 
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 046a60535e04..77a07a12e77f 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -156,6 +156,7 @@ struct bond_params {
 	int all_slaves_active;
 	int resend_igmp;
 	int lp_interval;
+	int packets_per_slave;
 };
 
 struct bond_parm_tbl {
@@ -222,7 +223,7 @@ struct bonding {
 	char     proc_file_name[IFNAMSIZ];
 #endif /* CONFIG_PROC_FS */
 	struct   list_head bond_list;
-	u16      rr_tx_counter;
+	u32      rr_tx_counter;
 	struct   ad_bond_info ad_info;
 	struct   alb_bond_info alb_info;
 	struct   bond_params params;
-- 
cgit 


From 12465fb8338fedddc20464fdc5b1fcbc1971bc3a Mon Sep 17 00:00:00 2001
From: Nikolay Aleksandrov <nikolay@redhat.com>
Date: Tue, 5 Nov 2013 13:51:42 +0100
Subject: bonding: document the new packets_per_slave option

Add new documentation for the packets_per_slave option available
for balance-rr mode.

Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 Documentation/networking/bonding.txt | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt
index 3856ed2c45a9..2cdb8b66caa9 100644
--- a/Documentation/networking/bonding.txt
+++ b/Documentation/networking/bonding.txt
@@ -639,6 +639,15 @@ num_unsol_na
 	are generated by the ipv4 and ipv6 code and the numbers of
 	repetitions cannot be set independently.
 
+packets_per_slave
+
+	Specify the number of packets to transmit through a slave before
+	moving to the next one. When set to 0 then a slave is chosen at
+	random.
+
+	The valid range is 0 - 65535; the default value is 1. This option
+	has effect only in balance-rr mode.
+
 primary
 
 	A string (eth0, eth2, etc) specifying which slave is the
-- 
cgit 


From c9e8d128fe316751230ee0c53478740c64f58436 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Thu, 7 Nov 2013 10:45:35 -0800
Subject: percpu-refcount: Add EXPORT_SYMBOL to use percpu_ref from modules

This patch adds EXPORT_SYMBOL() for percpu_ref_init(),
percpu_ref_cancel_init() and percpu_ref_kill_and_confirm() so
that percpu refcounting can be used by external modules.

Cc: Kent Overstreet <kmo@daterainc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 lib/percpu-refcount.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/percpu-refcount.c b/lib/percpu-refcount.c
index 7deeb6297a48..25b9ac7b93e5 100644
--- a/lib/percpu-refcount.c
+++ b/lib/percpu-refcount.c
@@ -53,6 +53,7 @@ int percpu_ref_init(struct percpu_ref *ref, percpu_ref_func_t *release)
 	ref->release = release;
 	return 0;
 }
+EXPORT_SYMBOL(percpu_ref_init);
 
 /**
  * percpu_ref_cancel_init - cancel percpu_ref_init()
@@ -84,6 +85,7 @@ void percpu_ref_cancel_init(struct percpu_ref *ref)
 		free_percpu(ref->pcpu_count);
 	}
 }
+EXPORT_SYMBOL(percpu_ref_cancel_init);
 
 static void percpu_ref_kill_rcu(struct rcu_head *rcu)
 {
@@ -156,3 +158,4 @@ void percpu_ref_kill_and_confirm(struct percpu_ref *ref,
 
 	call_rcu_sched(&ref->rcu, percpu_ref_kill_rcu);
 }
+EXPORT_SYMBOL(percpu_ref_kill_and_confirm);
-- 
cgit 


From ca2b029515b4a81bbedcffc69a5d9574bb5ba475 Mon Sep 17 00:00:00 2001
From: Nicolin Chen <b42378@freescale.com>
Date: Thu, 7 Nov 2013 14:45:16 +0800
Subject: ASoC: generic-dmaengine-pcm: Use SNDRV_DMA_TYPE_DEV_IRAM as default

When allocating memory space for DMA buffer, use on-chip internal SRAM
as default choice to save power. Since the core would allocate memory
from traditional external memory if iram allocation failed, we don't
need to worry about any side effect.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/soc/soc-generic-dmaengine-pcm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/soc-generic-dmaengine-pcm.c b/sound/soc/soc-generic-dmaengine-pcm.c
index ee0790337ec9..51fded3640a5 100644
--- a/sound/soc/soc-generic-dmaengine-pcm.c
+++ b/sound/soc/soc-generic-dmaengine-pcm.c
@@ -228,7 +228,7 @@ static int dmaengine_pcm_new(struct snd_soc_pcm_runtime *rtd)
 		}
 
 		ret = snd_pcm_lib_preallocate_pages(substream,
-				SNDRV_DMA_TYPE_DEV,
+				SNDRV_DMA_TYPE_DEV_IRAM,
 				dmaengine_dma_dev(pcm, substream),
 				prealloc_buffer_size,
 				max_buffer_size);
-- 
cgit 


From 3b70a67da0bebca02a130eff8084eee457a2b836 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 7 Nov 2013 11:55:15 -0800
Subject: ALSA: hda_intel: ratelimit "spurious response" message

dmesg here has a 100+ consecutive lines of:

[ 1464.219446] hda-intel 0000:00:14.2: spurious response 0x0:0x0, last cmd=0x170500
[ 1464.219451] hda-intel 0000:00:14.2: spurious response 0x0:0x0, last cmd=0x170500
[ 1464.219454] hda-intel 0000:00:14.2: spurious response 0x0:0x0, last cmd=0x170500
...

Ratelimit the message to reduce the dmesg log noise.

Coalesce the format while at it.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_intel.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 17f4aa8cddd5..7a09404579a7 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -914,12 +914,12 @@ static void azx_update_rirb(struct azx *chip)
 			chip->rirb.res[addr] = res;
 			smp_wmb();
 			chip->rirb.cmds[addr]--;
-		} else
-			snd_printk(KERN_ERR SFX "%s: spurious response %#x:%#x, "
-				   "last cmd=%#08x\n",
+		} else if (printk_ratelimit()) {
+			snd_printk(KERN_ERR SFX "%s: spurious response %#x:%#x, last cmd=%#08x\n",
 				   pci_name(chip->pci),
 				   res, res_ex,
 				   chip->last_cmd[addr]);
+		}
 	}
 }
 
-- 
cgit 


From b0db7b0c21a014d01be1018db68e78ebf7d4f0d7 Mon Sep 17 00:00:00 2001
From: Jonas Jensen <jonas.jensen@gmail.com>
Date: Tue, 5 Nov 2013 16:55:01 +0100
Subject: phy: Add MOXA MDIO driver

The MOXA UC-711X hardware(s) has an ethernet controller that seem
to be developed internally. The IC used is "RTL8201CP".

This patch adds an MDIO driver which handles the MII bus.

Signed-off-by: Jonas Jensen <jonas.jensen@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/phy/Kconfig       |   7 ++
 drivers/net/phy/Makefile      |   1 +
 drivers/net/phy/mdio-moxart.c | 201 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 209 insertions(+)
 create mode 100644 drivers/net/phy/mdio-moxart.c

diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 342561ad3158..9b5d46c03eed 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -154,6 +154,13 @@ config MDIO_SUN4I
 	  interface units of the Allwinner SoC that have an EMAC (A10,
 	  A12, A10s, etc.)
 
+config MDIO_MOXART
+        tristate "MOXA ART MDIO interface support"
+        depends on ARCH_MOXART
+        help
+          This driver supports the MDIO interface found in the network
+          interface units of the MOXA ART SoC
+
 config MDIO_BUS_MUX
 	tristate
 	depends on OF_MDIO
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index 23a2ab2e847e..9013dfa12aa3 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -31,3 +31,4 @@ obj-$(CONFIG_MDIO_BUS_MUX)	+= mdio-mux.o
 obj-$(CONFIG_MDIO_BUS_MUX_GPIO)	+= mdio-mux-gpio.o
 obj-$(CONFIG_MDIO_BUS_MUX_MMIOREG) += mdio-mux-mmioreg.o
 obj-$(CONFIG_MDIO_SUN4I)	+= mdio-sun4i.o
+obj-$(CONFIG_MDIO_MOXART)	+= mdio-moxart.o
diff --git a/drivers/net/phy/mdio-moxart.c b/drivers/net/phy/mdio-moxart.c
new file mode 100644
index 000000000000..a5741cb0304e
--- /dev/null
+++ b/drivers/net/phy/mdio-moxart.c
@@ -0,0 +1,201 @@
+/* MOXA ART Ethernet (RTL8201CP) MDIO interface driver
+ *
+ * Copyright (C) 2013 Jonas Jensen <jonas.jensen@gmail.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of_address.h>
+#include <linux/of_mdio.h>
+#include <linux/phy.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
+
+#define REG_PHY_CTRL            0
+#define REG_PHY_WRITE_DATA      4
+
+/* REG_PHY_CTRL */
+#define MIIWR                   BIT(27) /* init write sequence (auto cleared)*/
+#define MIIRD                   BIT(26)
+#define REGAD_MASK              0x3e00000
+#define PHYAD_MASK              0x1f0000
+#define MIIRDATA_MASK           0xffff
+
+/* REG_PHY_WRITE_DATA */
+#define MIIWDATA_MASK           0xffff
+
+struct moxart_mdio_data {
+	void __iomem		*base;
+};
+
+static int moxart_mdio_read(struct mii_bus *bus, int mii_id, int regnum)
+{
+	struct moxart_mdio_data *data = bus->priv;
+	u32 ctrl = 0;
+	unsigned int count = 5;
+
+	dev_dbg(&bus->dev, "%s\n", __func__);
+
+	ctrl |= MIIRD | ((mii_id << 16) & PHYAD_MASK) |
+		((regnum << 21) & REGAD_MASK);
+
+	writel(ctrl, data->base + REG_PHY_CTRL);
+
+	do {
+		ctrl = readl(data->base + REG_PHY_CTRL);
+
+		if (!(ctrl & MIIRD))
+			return ctrl & MIIRDATA_MASK;
+
+		mdelay(10);
+		count--;
+	} while (count > 0);
+
+	dev_dbg(&bus->dev, "%s timed out\n", __func__);
+
+	return -ETIMEDOUT;
+}
+
+static int moxart_mdio_write(struct mii_bus *bus, int mii_id,
+			     int regnum, u16 value)
+{
+	struct moxart_mdio_data *data = bus->priv;
+	u32 ctrl = 0;
+	unsigned int count = 5;
+
+	dev_dbg(&bus->dev, "%s\n", __func__);
+
+	ctrl |= MIIWR | ((mii_id << 16) & PHYAD_MASK) |
+		((regnum << 21) & REGAD_MASK);
+
+	value &= MIIWDATA_MASK;
+
+	writel(value, data->base + REG_PHY_WRITE_DATA);
+	writel(ctrl, data->base + REG_PHY_CTRL);
+
+	do {
+		ctrl = readl(data->base + REG_PHY_CTRL);
+
+		if (!(ctrl & MIIWR))
+			return 0;
+
+		mdelay(10);
+		count--;
+	} while (count > 0);
+
+	dev_dbg(&bus->dev, "%s timed out\n", __func__);
+
+	return -ETIMEDOUT;
+}
+
+static int moxart_mdio_reset(struct mii_bus *bus)
+{
+	int data, i;
+
+	for (i = 0; i < PHY_MAX_ADDR; i++) {
+		data = moxart_mdio_read(bus, i, MII_BMCR);
+		if (data < 0)
+			continue;
+
+		data |= BMCR_RESET;
+		if (moxart_mdio_write(bus, i, MII_BMCR, data) < 0)
+			continue;
+	}
+
+	return 0;
+}
+
+static int moxart_mdio_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct mii_bus *bus;
+	struct moxart_mdio_data *data;
+	struct resource *res;
+	int ret, i;
+
+	bus = mdiobus_alloc_size(sizeof(*data));
+	if (!bus)
+		return -ENOMEM;
+
+	bus->name = "MOXA ART Ethernet MII";
+	bus->read = &moxart_mdio_read;
+	bus->write = &moxart_mdio_write;
+	bus->reset = &moxart_mdio_reset;
+	snprintf(bus->id, MII_BUS_ID_SIZE, "%s-%d-mii", pdev->name, pdev->id);
+	bus->parent = &pdev->dev;
+
+	bus->irq = devm_kzalloc(&pdev->dev, sizeof(int) * PHY_MAX_ADDR,
+			GFP_KERNEL);
+	if (!bus->irq) {
+		ret = -ENOMEM;
+		goto err_out_free_mdiobus;
+	}
+
+	/* Setting PHY_IGNORE_INTERRUPT here even if it has no effect,
+	 * of_mdiobus_register() sets these PHY_POLL.
+	 * Ideally, the interrupt from MAC controller could be used to
+	 * detect link state changes, not polling, i.e. if there was
+	 * a way phy_driver could set PHY_HAS_INTERRUPT but have that
+	 * interrupt handled in ethernet drivercode.
+	 */
+	for (i = 0; i < PHY_MAX_ADDR; i++)
+		bus->irq[i] = PHY_IGNORE_INTERRUPT;
+
+	data = bus->priv;
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	data->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(data->base)) {
+		ret = PTR_ERR(data->base);
+		goto err_out_free_mdiobus;
+	}
+
+	ret = of_mdiobus_register(bus, np);
+	if (ret < 0)
+		goto err_out_free_mdiobus;
+
+	platform_set_drvdata(pdev, bus);
+
+	return 0;
+
+err_out_free_mdiobus:
+	mdiobus_free(bus);
+	return ret;
+}
+
+static int moxart_mdio_remove(struct platform_device *pdev)
+{
+	struct mii_bus *bus = platform_get_drvdata(pdev);
+
+	mdiobus_unregister(bus);
+	mdiobus_free(bus);
+
+	return 0;
+}
+
+static const struct of_device_id moxart_mdio_dt_ids[] = {
+	{ .compatible = "moxa,moxart-mdio" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, moxart_mdio_dt_ids);
+
+static struct platform_driver moxart_mdio_driver = {
+	.probe = moxart_mdio_probe,
+	.remove = moxart_mdio_remove,
+	.driver = {
+		.name = "moxart-mdio",
+		.of_match_table = moxart_mdio_dt_ids,
+	},
+};
+
+module_platform_driver(moxart_mdio_driver);
+
+MODULE_DESCRIPTION("MOXA ART MDIO interface driver");
+MODULE_AUTHOR("Jonas Jensen <jonas.jensen@gmail.com>");
+MODULE_LICENSE("GPL");
-- 
cgit 


From 61dbbaeb86c2181c79efae2d186193e0f8008af1 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Sun, 13 Oct 2013 21:11:30 +0200
Subject: parisc: provide macro to create exception table entries

Provide a macro ASM_EXCEPTIONTABLE_ENTRY() to create exception table
entries and convert all open-coded places to use that macro.

This patch is a first step toward creating a exception table which only
holds 32bit pointers even on a 64bit kernel. That way in my own kernel
I was able to reduce the in-kernel exception table from 44kB to 22kB.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/include/asm/assembly.h | 12 ++++++++++++
 arch/parisc/include/asm/uaccess.h  |  7 ++++---
 arch/parisc/kernel/syscall.S       |  6 ++----
 arch/parisc/lib/lusercopy.S        | 10 +++-------
 arch/parisc/mm/fault.c             |  6 ++++++
 5 files changed, 27 insertions(+), 14 deletions(-)

diff --git a/arch/parisc/include/asm/assembly.h b/arch/parisc/include/asm/assembly.h
index 0da848232344..b3069fd83468 100644
--- a/arch/parisc/include/asm/assembly.h
+++ b/arch/parisc/include/asm/assembly.h
@@ -515,5 +515,17 @@
 	nop	/* 7 */
 	.endm
 
+	/*
+	 * ASM_EXCEPTIONTABLE_ENTRY
+	 *
+	 * Creates an exception table entry.
+	 * Do not convert to a assembler macro. This won't work.
+	 */
+#define ASM_EXCEPTIONTABLE_ENTRY(fault_addr, except_addr)	\
+	.section __ex_table,"aw"			!	\
+	ASM_ULONG_INSN	fault_addr, except_addr		!	\
+	.previous
+
+
 #endif /* __ASSEMBLY__ */
 #endif
diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index e0a82358517e..4006964d8e12 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -59,12 +59,13 @@ static inline long access_ok(int type, const void __user * addr,
 /*
  * The exception table contains two values: the first is an address
  * for an instruction that is allowed to fault, and the second is
- * the address to the fixup routine. 
+ * the address to the fixup routine. Even on a 64bit kernel we could
+ * use a 32bit (unsigned int) address here.
  */
 
 struct exception_table_entry {
-	unsigned long insn;  /* address of insn that is allowed to fault.   */
-	long fixup;          /* fixup routine */
+	unsigned long insn;	/* address of insn that is allowed to fault. */
+	unsigned long fixup;	/* fixup routine */
 };
 
 #define ASM_EXCEPTIONTABLE_ENTRY( fault_addr, except_addr )\
diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S
index e767ab733e32..a63bb179f79a 100644
--- a/arch/parisc/kernel/syscall.S
+++ b/arch/parisc/kernel/syscall.S
@@ -649,10 +649,8 @@ cas_action:
 	/* Two exception table entries, one for the load,
 	   the other for the store. Either return -EFAULT.
 	   Each of the entries must be relocated. */
-	.section __ex_table,"aw"
-	ASM_ULONG_INSN (1b - linux_gateway_page), (3b - linux_gateway_page)
-	ASM_ULONG_INSN (2b - linux_gateway_page), (3b - linux_gateway_page)
-	.previous
+	ASM_EXCEPTIONTABLE_ENTRY(1b-linux_gateway_page, 3b-linux_gateway_page)
+	ASM_EXCEPTIONTABLE_ENTRY(2b-linux_gateway_page, 3b-linux_gateway_page)
 
 
 	/* Make sure nothing else is placed on this page */
diff --git a/arch/parisc/lib/lusercopy.S b/arch/parisc/lib/lusercopy.S
index 6f2d9355efe2..a512f07d4feb 100644
--- a/arch/parisc/lib/lusercopy.S
+++ b/arch/parisc/lib/lusercopy.S
@@ -88,9 +88,7 @@ ENDPROC(lclear_user)
 	ldo        1(%r25),%r25
 	.previous
 
-	.section __ex_table,"aw"
-	ASM_ULONG_INSN 1b,2b
-	.previous
+	ASM_EXCEPTIONTABLE_ENTRY(1b,2b)
 
 	.procend
 
@@ -129,10 +127,8 @@ ENDPROC(lstrnlen_user)
 	copy        %r24,%r26    /* reset r26 so 0 is returned on fault */
 	.previous
 
-	.section __ex_table,"aw"
-	ASM_ULONG_INSN 1b,3b
-	ASM_ULONG_INSN 2b,3b
-	.previous
+	ASM_EXCEPTIONTABLE_ENTRY(1b,3b)
+	ASM_EXCEPTIONTABLE_ENTRY(2b,3b)
 
 	.procend
 
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 0293588d5b8c..df0d32971cdf 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -142,6 +142,12 @@ int fixup_exception(struct pt_regs *regs)
 {
 	const struct exception_table_entry *fix;
 
+	/* If we only stored 32bit addresses in the exception table we can drop
+	 * out if we faulted on a 64bit address. */
+	if ((sizeof(regs->iaoq[0]) > sizeof(fix->insn))
+		&& (regs->iaoq[0] >> 32))
+			return 0;
+
 	fix = search_exception_tables(regs->iaoq[0]);
 	if (fix) {
 		struct exception_data *d;
-- 
cgit 


From 527973c84077eb9273d0b2408655620de2e30136 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Tue, 15 Oct 2013 19:25:46 +0200
Subject: parisc: add kernel audit feature

Implement missing functions for parisc to provide kernel audit feature.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/Kconfig                   |  3 ++
 arch/parisc/include/asm/ptrace.h      |  4 ++
 arch/parisc/include/asm/thread_info.h |  4 +-
 arch/parisc/kernel/Makefile           |  4 +-
 arch/parisc/kernel/audit.c            | 81 +++++++++++++++++++++++++++++++++++
 arch/parisc/kernel/compat_audit.c     | 40 +++++++++++++++++
 arch/parisc/kernel/ptrace.c           | 26 +++++++++--
 init/Kconfig                          |  2 +-
 8 files changed, 158 insertions(+), 6 deletions(-)
 create mode 100644 arch/parisc/kernel/audit.c
 create mode 100644 arch/parisc/kernel/compat_audit.c

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index ad2ce8dab996..7dcde539d61e 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -287,6 +287,9 @@ config SYSVIPC_COMPAT
 	def_bool y
 	depends on COMPAT && SYSVIPC
 
+config AUDIT_ARCH
+	def_bool y
+
 config HPUX
 	bool "Support for HP-UX binaries"
 	depends on !64BIT
diff --git a/arch/parisc/include/asm/ptrace.h b/arch/parisc/include/asm/ptrace.h
index a2db278a5def..3c3cb004b7e2 100644
--- a/arch/parisc/include/asm/ptrace.h
+++ b/arch/parisc/include/asm/ptrace.h
@@ -19,5 +19,9 @@
 #define user_stack_pointer(regs)	((regs)->gr[30])
 unsigned long profile_pc(struct pt_regs *);
 
+static inline unsigned long regs_return_value(struct pt_regs *regs)
+{
+	return regs->gr[20];
+}
 
 #endif
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index 540c88fa8f86..bc7cf120106b 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -59,6 +59,7 @@ struct thread_info {
 #define TIF_32BIT               4       /* 32 bit binary */
 #define TIF_MEMDIE		5	/* is terminating due to OOM killer */
 #define TIF_RESTORE_SIGMASK	6	/* restore saved signal mask */
+#define TIF_SYSCALL_AUDIT	7	/* syscall auditing active */
 #define TIF_NOTIFY_RESUME	8	/* callback before returning to user */
 #define TIF_SINGLESTEP		9	/* single stepping? */
 #define TIF_BLOCKSTEP		10	/* branch stepping? */
@@ -68,6 +69,7 @@ struct thread_info {
 #define _TIF_NEED_RESCHED	(1 << TIF_NEED_RESCHED)
 #define _TIF_POLLING_NRFLAG	(1 << TIF_POLLING_NRFLAG)
 #define _TIF_32BIT		(1 << TIF_32BIT)
+#define _TIF_SYSCALL_AUDIT	(1 << TIF_SYSCALL_AUDIT)
 #define _TIF_NOTIFY_RESUME	(1 << TIF_NOTIFY_RESUME)
 #define _TIF_SINGLESTEP		(1 << TIF_SINGLESTEP)
 #define _TIF_BLOCKSTEP		(1 << TIF_BLOCKSTEP)
@@ -75,7 +77,7 @@ struct thread_info {
 #define _TIF_USER_WORK_MASK     (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | \
                                  _TIF_NEED_RESCHED)
 #define _TIF_SYSCALL_TRACE_MASK (_TIF_SYSCALL_TRACE | _TIF_SINGLESTEP |	\
-				 _TIF_BLOCKSTEP)
+				 _TIF_BLOCKSTEP | _TIF_SYSCALL_AUDIT)
 
 #endif /* __KERNEL__ */
 
diff --git a/arch/parisc/kernel/Makefile b/arch/parisc/kernel/Makefile
index 66ee3f12df58..ff87b4603e3d 100644
--- a/arch/parisc/kernel/Makefile
+++ b/arch/parisc/kernel/Makefile
@@ -29,7 +29,9 @@ obj-$(CONFIG_PCI)	+= pci.o
 obj-$(CONFIG_MODULES)	+= module.o
 obj-$(CONFIG_64BIT)	+= binfmt_elf32.o sys_parisc32.o signal32.o
 obj-$(CONFIG_STACKTRACE)+= stacktrace.o
+obj-$(CONFIG_AUDIT)	+= audit.o
+obj64-$(CONFIG_AUDIT)	+= compat_audit.o
 # only supported for PCX-W/U in 64-bit mode at the moment
-obj-$(CONFIG_64BIT)	+= perf.o perf_asm.o
+obj-$(CONFIG_64BIT)	+= perf.o perf_asm.o $(obj64-y)
 obj-$(CONFIG_FUNCTION_TRACER)		+= ftrace.o
 obj-$(CONFIG_FUNCTION_GRAPH_TRACER)	+= ftrace.o
diff --git a/arch/parisc/kernel/audit.c b/arch/parisc/kernel/audit.c
new file mode 100644
index 000000000000..eb64a6148c82
--- /dev/null
+++ b/arch/parisc/kernel/audit.c
@@ -0,0 +1,81 @@
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/audit.h>
+#include <asm/unistd.h>
+
+static unsigned dir_class[] = {
+#include <asm-generic/audit_dir_write.h>
+~0U
+};
+
+static unsigned read_class[] = {
+#include <asm-generic/audit_read.h>
+~0U
+};
+
+static unsigned write_class[] = {
+#include <asm-generic/audit_write.h>
+~0U
+};
+
+static unsigned chattr_class[] = {
+#include <asm-generic/audit_change_attr.h>
+~0U
+};
+
+static unsigned signal_class[] = {
+#include <asm-generic/audit_signal.h>
+~0U
+};
+
+int audit_classify_arch(int arch)
+{
+#ifdef CONFIG_COMPAT
+	if (arch == AUDIT_ARCH_PARISC)
+		return 1;
+#endif
+	return 0;
+}
+
+int audit_classify_syscall(int abi, unsigned syscall)
+{
+#ifdef CONFIG_COMPAT
+	extern int parisc32_classify_syscall(unsigned);
+	if (abi == AUDIT_ARCH_PARISC)
+		return parisc32_classify_syscall(syscall);
+#endif
+	switch (syscall) {
+	case __NR_open:
+		return 2;
+	case __NR_openat:
+		return 3;
+	case __NR_execve:
+		return 5;
+	default:
+		return 0;
+	}
+}
+
+static int __init audit_classes_init(void)
+{
+#ifdef CONFIG_COMPAT
+	extern __u32 parisc32_dir_class[];
+	extern __u32 parisc32_write_class[];
+	extern __u32 parisc32_read_class[];
+	extern __u32 parisc32_chattr_class[];
+	extern __u32 parisc32_signal_class[];
+	audit_register_class(AUDIT_CLASS_WRITE_32, parisc32_write_class);
+	audit_register_class(AUDIT_CLASS_READ_32, parisc32_read_class);
+	audit_register_class(AUDIT_CLASS_DIR_WRITE_32, parisc32_dir_class);
+	audit_register_class(AUDIT_CLASS_CHATTR_32, parisc32_chattr_class);
+	audit_register_class(AUDIT_CLASS_SIGNAL_32, parisc32_signal_class);
+#endif
+	audit_register_class(AUDIT_CLASS_WRITE, write_class);
+	audit_register_class(AUDIT_CLASS_READ, read_class);
+	audit_register_class(AUDIT_CLASS_DIR_WRITE, dir_class);
+	audit_register_class(AUDIT_CLASS_CHATTR, chattr_class);
+	audit_register_class(AUDIT_CLASS_SIGNAL, signal_class);
+	return 0;
+}
+
+__initcall(audit_classes_init);
diff --git a/arch/parisc/kernel/compat_audit.c b/arch/parisc/kernel/compat_audit.c
new file mode 100644
index 000000000000..c74478f6bc74
--- /dev/null
+++ b/arch/parisc/kernel/compat_audit.c
@@ -0,0 +1,40 @@
+#include <asm/unistd.h>
+
+unsigned int parisc32_dir_class[] = {
+#include <asm-generic/audit_dir_write.h>
+~0U
+};
+
+unsigned int parisc32_chattr_class[] = {
+#include <asm-generic/audit_change_attr.h>
+~0U
+};
+
+unsigned int parisc32_write_class[] = {
+#include <asm-generic/audit_write.h>
+~0U
+};
+
+unsigned int parisc32_read_class[] = {
+#include <asm-generic/audit_read.h>
+~0U
+};
+
+unsigned int parisc32_signal_class[] = {
+#include <asm-generic/audit_signal.h>
+~0U
+};
+
+int parisc32_classify_syscall(unsigned syscall)
+{
+	switch (syscall) {
+	case __NR_open:
+		return 2;
+	case __NR_openat:
+		return 3;
+	case __NR_execve:
+		return 5;
+	default:
+		return 1;
+	}
+}
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c
index 534abd4936e1..e842ee233db4 100644
--- a/arch/parisc/kernel/ptrace.c
+++ b/arch/parisc/kernel/ptrace.c
@@ -19,6 +19,7 @@
 #include <linux/security.h>
 #include <linux/compat.h>
 #include <linux/signal.h>
+#include <linux/audit.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgtable.h>
@@ -267,11 +268,28 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 
 long do_syscall_trace_enter(struct pt_regs *regs)
 {
+	long ret = 0;
+
 	if (test_thread_flag(TIF_SYSCALL_TRACE) &&
 	    tracehook_report_syscall_entry(regs))
-		return -1L;
-
-	return regs->gr[20];
+		ret = -1L;
+
+#ifdef CONFIG_64BIT
+	if (!is_compat_task())
+		audit_syscall_entry(AUDIT_ARCH_PARISC64,
+			regs->gr[20],
+			regs->gr[26], regs->gr[25],
+			regs->gr[24], regs->gr[23]);
+	else
+#endif
+		audit_syscall_entry(AUDIT_ARCH_PARISC,
+			regs->gr[20] & 0xffffffff,
+			regs->gr[26] & 0xffffffff,
+			regs->gr[25] & 0xffffffff,
+			regs->gr[24] & 0xffffffff,
+			regs->gr[23] & 0xffffffff);
+
+	return ret ? : regs->gr[20];
 }
 
 void do_syscall_trace_exit(struct pt_regs *regs)
@@ -279,6 +297,8 @@ void do_syscall_trace_exit(struct pt_regs *regs)
 	int stepping = test_thread_flag(TIF_SINGLESTEP) ||
 		test_thread_flag(TIF_BLOCKSTEP);
 
+	audit_syscall_exit(regs);
+
 	if (stepping || test_thread_flag(TIF_SYSCALL_TRACE))
 		tracehook_report_syscall_exit(regs, stepping);
 }
diff --git a/init/Kconfig b/init/Kconfig
index 3ecd8a1178f1..d9887456007a 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -284,7 +284,7 @@ config AUDIT
 
 config AUDITSYSCALL
 	bool "Enable system-call auditing support"
-	depends on AUDIT && (X86 || PPC || S390 || IA64 || UML || SPARC64 || SUPERH || (ARM && AEABI && !OABI_COMPAT))
+	depends on AUDIT && (X86 || PARISC || PPC || S390 || IA64 || UML || SPARC64 || SUPERH || (ARM && AEABI && !OABI_COMPAT))
 	default y if SECURITY_SELINUX
 	help
 	  Enable low-overhead system-call auditing infrastructure that
-- 
cgit 


From b0756b5adefcb51eaa84810a0b7abd4df8c19eb9 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Fri, 18 Oct 2013 21:18:46 +0200
Subject: parisc: make "make install" not depend on vmlinux

Install targets (install, zinstall, uinstall) on parisc have a
dependency to vmlinux. This may cause parts of the kernel to be rebuilt
during installation. We must avoid this since this may run as root.
Install targets "ABSOLUTELY MUST NOT MODIFY THE SOURCE TREE." as Linus
emphasized this in:

http://lkml.org/lkml/2013/7/10/600

So on parisc and maybe other archs we need the same as for x86:

1648e4f8 x86, kbuild: make "make install" not depend on vmlinux

This parisc patch was inspired by:

19514fc6 arm, kbuild: make "make install" not depend on vmlinux

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/Makefile   | 22 +++++++++++++++-------
 arch/parisc/install.sh | 44 ++++++++++++++++++++++++++++++++++++--------
 2 files changed, 51 insertions(+), 15 deletions(-)

diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index e02f665f804a..7187664034c3 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -94,7 +94,7 @@ PALOCONF := $(shell if [ -f $(src)/palo.conf ]; then echo $(src)/palo.conf; \
 	else echo $(obj)/palo.conf; \
 	fi)
 
-palo: vmlinuz
+palo lifimage: vmlinuz
 	@if test ! -x "$(PALO)"; then \
 		echo 'ERROR: Please install palo first (apt-get install palo)';\
 		echo 'or build it from source and install it somewhere in your $$PATH';\
@@ -109,16 +109,23 @@ palo: vmlinuz
 	fi
 	$(PALO) -f $(PALOCONF)
 
-# Shorthands for known targets not supported by parisc, use vmlinux/vmlinuz as default
+BOOT_TARGETS    = zImage Image palo lifimage
+INSTALL_TARGETS = zinstall install
+
+PHONY += bzImage $(BOOT_TARGETS) $(INSTALL_TARGETS)
+
+bzImage zImage: vmlinuz
 Image: vmlinux
-zImage bzImage: vmlinuz
 
 vmlinuz: vmlinux
 	@gzip -cf -9 $< > $@
 
-install: vmlinuz
-	sh $(src)/arch/parisc/install.sh \
-			$(KERNELRELEASE) $< System.map "$(INSTALL_PATH)"
+install:
+	$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
+			$(KERNELRELEASE) vmlinux System.map "$(INSTALL_PATH)"
+zinstall:
+	$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
+			$(KERNELRELEASE) vmlinuz System.map "$(INSTALL_PATH)"
 
 CLEAN_FILES	+= lifimage
 MRPROPER_FILES	+= palo.conf
@@ -127,10 +134,11 @@ define archhelp
 	@echo  '* vmlinux	- Uncompressed kernel image (./vmlinux)'
 	@echo  '  vmlinuz	- Compressed kernel image (./vmlinuz)'
 	@echo  '  palo		- Bootable image (./lifimage)'
-	@echo  '  install	- Install kernel using'
+	@echo  '  install	- Install uncompressed vmlinux kernel using'
 	@echo  '		  (your) ~/bin/$(INSTALLKERNEL) or'
 	@echo  '		  (distribution) /sbin/$(INSTALLKERNEL) or'
 	@echo  '		  copy to $$(INSTALL_PATH)'
+	@echo  '  zinstall	- Install compressed vmlinuz kernel'
 endef
 
 # we require gcc 3.3 or above to compile the kernel
diff --git a/arch/parisc/install.sh b/arch/parisc/install.sh
index 4da682b466d0..6f68784fea25 100644
--- a/arch/parisc/install.sh
+++ b/arch/parisc/install.sh
@@ -19,20 +19,48 @@
 #   $4 - default install path (blank if root directory)
 #
 
+verify () {
+	if [ ! -f "$1" ]; then
+		echo ""                                                   1>&2
+		echo " *** Missing file: $1"                              1>&2
+		echo ' *** You need to run "make" before "make install".' 1>&2
+		echo ""                                                   1>&2
+		exit 1
+	fi
+}
+
+# Make sure the files actually exist
+
+verify "$2"
+verify "$3"
+
 # User may have a custom install script
 
-if [ -x ~/bin/${INSTALLKERNEL} ]; then exec ~/bin/${INSTALLKERNEL} "$@"; fi
-if [ -x /sbin/${INSTALLKERNEL} ]; then exec /sbin/${INSTALLKERNEL} "$@"; fi
+if [ -n "${INSTALLKERNEL}" ]; then
+  if [ -x ~/bin/${INSTALLKERNEL} ]; then exec ~/bin/${INSTALLKERNEL} "$@"; fi
+  if [ -x /sbin/${INSTALLKERNEL} ]; then exec /sbin/${INSTALLKERNEL} "$@"; fi
+fi
 
 # Default install
 
-if [ -f $4/vmlinuz ]; then
-	mv $4/vmlinuz $4/vmlinuz.old
+if [ "$(basename $2)" = "zImage" ]; then
+# Compressed install
+  echo "Installing compressed kernel"
+  base=vmlinuz
+else
+# Normal install
+  echo "Installing normal kernel"
+  base=vmlinux
+fi
+
+if [ -f $4/$base-$1 ]; then
+  mv $4/$base-$1 $4/$base-$1.old
 fi
+cat $2 > $4/$base-$1
 
-if [ -f $4/System.map ]; then
-	mv $4/System.map $4/System.old
+# Install system map file
+if [ -f $4/System.map-$1 ]; then
+  mv $4/System.map-$1 $4/System.map-$1.old
 fi
+cp $3 $4/System.map-$1
 
-cat $2 > $4/vmlinuz
-cp $3 $4/System.map
-- 
cgit 


From e4be260d156409ebdabf1e13ed547d3703801c5f Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Wed, 23 Oct 2013 12:37:08 +0200
Subject: parisc: remove duplicate define

This patch removes a duplicate define from
arch/parisc/math-emu/float.h

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/math-emu/float.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/parisc/math-emu/float.h b/arch/parisc/math-emu/float.h
index ce76f6dfa25b..7a51f97e72e6 100644
--- a/arch/parisc/math-emu/float.h
+++ b/arch/parisc/math-emu/float.h
@@ -484,7 +484,6 @@ typedef int VOID;
  * |                                                     |G|L|E|U|X|
  * +-------+-------+-------+-------+-------+-------+-------+-------+
  */
-#define Allexception(object) (object)
 #define Greaterthanbit(object) Bitfield_extract( 27, 1,object)
 #define Lessthanbit(object) Bitfield_extract( 28, 1,object)
 #define Equalbit(object) Bitfield_extract( 29, 1,object)
-- 
cgit 


From f6d12eefcda2e4135aa529ab8b5bf2766b4a78dd Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Wed, 23 Oct 2013 23:29:16 +0200
Subject: parisc: make udelay() SMP-safe

Each CPU has it's own Control Register 16 (CR16) which is used as time source
for the udelay() function. But since the CR16 registers across different CPUs
are not synced, we need to recalculate the loop count if we get switched away
to ensure that we really delay as much time as requested.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/include/asm/delay.h | 41 ++++++-----------------
 arch/parisc/lib/Makefile        |  2 +-
 arch/parisc/lib/delay.c         | 73 +++++++++++++++++++++++++++++++++++++++++
 3 files changed, 84 insertions(+), 32 deletions(-)
 create mode 100644 arch/parisc/lib/delay.c

diff --git a/arch/parisc/include/asm/delay.h b/arch/parisc/include/asm/delay.h
index 912ee7e6a579..08e58e679e3e 100644
--- a/arch/parisc/include/asm/delay.h
+++ b/arch/parisc/include/asm/delay.h
@@ -1,15 +1,5 @@
-#ifndef _PARISC_DELAY_H
-#define _PARISC_DELAY_H
-
-#include <asm/special_insns.h>    /* for mfctl() */
-#include <asm/processor.h> /* for boot_cpu_data */
-
-
-/*
- * Copyright (C) 1993 Linus Torvalds
- *
- * Delay routines
- */
+#ifndef _ASM_PARISC_DELAY_H
+#define _ASM_PARISC_DELAY_H
 
 static __inline__ void __delay(unsigned long loops) {
 	asm volatile(
@@ -19,25 +9,14 @@ static __inline__ void __delay(unsigned long loops) {
 		: "=r" (loops) : "0" (loops));
 }
 
-static __inline__ void __cr16_delay(unsigned long clocks) {
-	unsigned long start;
-
-	/*
-	 * Note: Due to unsigned math, cr16 rollovers shouldn't be
-	 * a problem here. However, on 32 bit, we need to make sure
-	 * we don't pass in too big a value. The current default
-	 * value of MAX_UDELAY_MS should help prevent this.
-	 */
+extern void __udelay(unsigned long usecs);
+extern void __udelay_bad(unsigned long usecs);
 
-	start = mfctl(16);
-	while ((mfctl(16) - start) < clocks)
-	    ;
+static inline void udelay(unsigned long usecs)
+{
+	if (__builtin_constant_p(usecs) && (usecs) > 20000)
+		__udelay_bad(usecs);
+	__udelay(usecs);
 }
 
-static __inline__ void __udelay(unsigned long usecs) {
-	__cr16_delay(usecs * ((unsigned long)boot_cpu_data.cpu_hz / 1000000UL));
-}
-
-#define udelay(n) __udelay(n)
-
-#endif /* defined(_PARISC_DELAY_H) */
+#endif /* _ASM_PARISC_DELAY_H */
diff --git a/arch/parisc/lib/Makefile b/arch/parisc/lib/Makefile
index 5651536ac733..8fa92b8d839a 100644
--- a/arch/parisc/lib/Makefile
+++ b/arch/parisc/lib/Makefile
@@ -3,6 +3,6 @@
 #
 
 lib-y	:= lusercopy.o bitops.o checksum.o io.o memset.o fixup.o memcpy.o \
-	   ucmpdi2.o
+	   ucmpdi2.o delay.o
 
 obj-y	:= iomap.o
diff --git a/arch/parisc/lib/delay.c b/arch/parisc/lib/delay.c
new file mode 100644
index 000000000000..ec9255f27a81
--- /dev/null
+++ b/arch/parisc/lib/delay.c
@@ -0,0 +1,73 @@
+/*
+ *	Precise Delay Loops for parisc
+ *
+ *	based on code by:
+ *	Copyright (C) 1993 Linus Torvalds
+ *	Copyright (C) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
+ *	Copyright (C) 2008 Jiri Hladky <hladky _dot_ jiri _at_ gmail _dot_ com>
+ *
+ *	parisc implementation:
+ *	Copyright (C) 2013 Helge Deller <deller@gmx.de>
+ */
+
+
+#include <linux/module.h>
+#include <linux/preempt.h>
+#include <linux/init.h>
+
+#include <asm/processor.h>
+#include <asm/delay.h>
+
+#include <asm/special_insns.h>    /* for mfctl() */
+#include <asm/processor.h> /* for boot_cpu_data */
+
+/* CR16 based delay: */
+static void __cr16_delay(unsigned long __loops)
+{
+	/*
+	 * Note: Due to unsigned math, cr16 rollovers shouldn't be
+	 * a problem here. However, on 32 bit, we need to make sure
+	 * we don't pass in too big a value. The current default
+	 * value of MAX_UDELAY_MS should help prevent this.
+	 */
+	u32 bclock, now, loops = __loops;
+	int cpu;
+
+	preempt_disable();
+	cpu = smp_processor_id();
+	bclock = mfctl(16);
+	for (;;) {
+		now = mfctl(16);
+		if ((now - bclock) >= loops)
+			break;
+
+		/* Allow RT tasks to run */
+		preempt_enable();
+		asm volatile("	nop\n");
+		barrier();
+		preempt_disable();
+
+		/*
+		 * It is possible that we moved to another CPU, and
+		 * since CR16's are per-cpu we need to calculate
+		 * that. The delay must guarantee that we wait "at
+		 * least" the amount of time. Being moved to another
+		 * CPU could make the wait longer but we just need to
+		 * make sure we waited long enough. Rebalance the
+		 * counter for this CPU.
+		 */
+		if (unlikely(cpu != smp_processor_id())) {
+			loops -= (now - bclock);
+			cpu = smp_processor_id();
+			bclock = mfctl(16);
+		}
+	}
+	preempt_enable();
+}
+
+
+void __udelay(unsigned long usecs)
+{
+	__cr16_delay(usecs * ((unsigned long)boot_cpu_data.cpu_hz / 1000000UL));
+}
+EXPORT_SYMBOL(__udelay);
-- 
cgit 


From 3c57e865cfb2dcbb48fdfa08e7d4e3479e9b40f0 Mon Sep 17 00:00:00 2001
From: Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>
Date: Mon, 7 Oct 2013 16:41:07 +0100
Subject: ath9k: enable DFS for IBSS mode

Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Mathias Kretschmer <mathias.kretschmer@fokus.fraunhofer.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/init.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index e89db64532f5..d8643ebabd30 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -845,7 +845,8 @@ static const struct ieee80211_iface_limit if_limits[] = {
 };
 
 static const struct ieee80211_iface_limit if_dfs_limits[] = {
-	{ .max = 1,	.types = BIT(NL80211_IFTYPE_AP) },
+	{ .max = 1,	.types = BIT(NL80211_IFTYPE_AP) |
+				 BIT(NL80211_IFTYPE_ADHOC) },
 };
 
 static const struct ieee80211_iface_combination if_comb[] = {
-- 
cgit 


From 6f0c4aa61d30131ceb32f2a9926dd71cc5cd003a Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Sun, 27 Oct 2013 00:26:20 +0200
Subject: parisc: do not count IPI calls twice

The number of IPI calls is already visible as per-cpu IPI irq counters
in/proc/cpuinfo, so let's drop this additional counting.

This partly reverts:
cd85d55 parisc: more irq statistics in /proc/interrupts

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/include/asm/hardirq.h | 1 -
 arch/parisc/kernel/irq.c          | 4 ----
 arch/parisc/kernel/smp.c          | 5 -----
 3 files changed, 10 deletions(-)

diff --git a/arch/parisc/include/asm/hardirq.h b/arch/parisc/include/asm/hardirq.h
index 241c34518465..9b3bd039a609 100644
--- a/arch/parisc/include/asm/hardirq.h
+++ b/arch/parisc/include/asm/hardirq.h
@@ -21,7 +21,6 @@ typedef struct {
 	unsigned int irq_stack_usage;
 #ifdef CONFIG_SMP
 	unsigned int irq_resched_count;
-	unsigned int irq_call_count;
 #endif
 	unsigned int irq_unaligned_count;
 	unsigned int irq_fpassist_count;
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 2e6443b1e922..501ac8b4dcdf 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -179,10 +179,6 @@ int arch_show_interrupts(struct seq_file *p, int prec)
 	for_each_online_cpu(j)
 		seq_printf(p, "%10u ", irq_stats(j)->irq_resched_count);
 	seq_puts(p, "  Rescheduling interrupts\n");
-	seq_printf(p, "%*s: ", prec, "CAL");
-	for_each_online_cpu(j)
-		seq_printf(p, "%10u ", irq_stats(j)->irq_call_count);
-	seq_puts(p, "  Function call interrupts\n");
 #endif
 	seq_printf(p, "%*s: ", prec, "UAH");
 	for_each_online_cpu(j)
diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c
index 2b96602e812f..ceda229ea6c2 100644
--- a/arch/parisc/kernel/smp.c
+++ b/arch/parisc/kernel/smp.c
@@ -125,11 +125,6 @@ ipi_interrupt(int irq, void *dev_id)
 	unsigned long ops;
 	unsigned long flags;
 
-	/* Count this now; we may make a call that never returns. */
-	inc_irq_stat(irq_call_count);
-
-	mb();	/* Order interrupt and bit testing. */
-
 	for (;;) {
 		spinlock_t *lock = &per_cpu(ipi_lock, this_cpu);
 		spin_lock_irqsave(lock, flags);
-- 
cgit 


From 3a7452b4449d34f2eec377e45036f5e0808aff09 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Thu, 24 Oct 2013 21:45:42 +0200
Subject: parisc: correctly display number of active CPUs

In case we fail to power up other CPUs in a SMP system, the kernel
currently shows a wrong number of online CPUs. This change makes the
output more verbose on how many of the CPUs are online. Example:

CPU(s): 1 out of 2 PA8800 (Mako) at 900.000000 MHz online.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/kernel/setup.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 7349a3fedfc7..72a3c658ad7b 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -318,8 +318,12 @@ static int __init parisc_init(void)
 	pdc_stable_write(0x40, &osid, sizeof(osid));
 	
 	processor_init();
-	printk(KERN_INFO "CPU(s): %d x %s at %d.%06d MHz\n",
-			num_present_cpus(),
+#ifdef CONFIG_SMP
+	pr_info("CPU(s): %d out of %d %s at %d.%06d MHz online\n",
+		num_online_cpus(), num_present_cpus(),
+#else
+	pr_info("CPU(s): 1 x %s at %d.%06d MHz\n",
+#endif
 			boot_cpu_data.cpu_name,
 			boot_cpu_data.cpu_hz / 1000000,
 			boot_cpu_data.cpu_hz % 1000000	);
-- 
cgit 


From 63379c135331c724d40a87b98eb62d2122981341 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Sat, 29 Jun 2013 14:03:14 +0200
Subject: parisc: implement full version of access_ok()

Up to now PA-RISC could live with a trivial version of access_ok().
Our fault handlers can correctly handle fault cases.

But testcases showed that we need a better access check else we won't
always return correct errno failure codes to userspace.

Problem showed up during 32bit userspace tests in which writev() used a
32bit memory area and length which would then wrap around on 64bit
kernel.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/include/asm/uaccess.h | 46 +++++++++++++++++++++++++++++++++++----
 1 file changed, 42 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 4006964d8e12..63f4dd0b49c2 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -4,11 +4,14 @@
 /*
  * User space memory access functions
  */
+#include <asm/processor.h>
 #include <asm/page.h>
 #include <asm/cache.h>
 #include <asm/errno.h>
 #include <asm-generic/uaccess-unaligned.h>
 
+#include <linux/sched.h>
+
 #define VERIFY_READ 0
 #define VERIFY_WRITE 1
 
@@ -33,12 +36,43 @@ extern int __get_user_bad(void);
 extern int __put_kernel_bad(void);
 extern int __put_user_bad(void);
 
-static inline long access_ok(int type, const void __user * addr,
-		unsigned long size)
+
+/*
+ * Test whether a block of memory is a valid user space address.
+ * Returns 0 if the range is valid, nonzero otherwise.
+ */
+static inline int __range_not_ok(unsigned long addr, unsigned long size,
+				 unsigned long limit)
 {
-	return 1;
+	unsigned long __newaddr = addr + size;
+	return (__newaddr < addr || __newaddr > limit || size > limit);
 }
 
+/**
+ * access_ok: - Checks if a user space pointer is valid
+ * @type: Type of access: %VERIFY_READ or %VERIFY_WRITE.  Note that
+ *        %VERIFY_WRITE is a superset of %VERIFY_READ - if it is safe
+ *        to write to a block, it is always safe to read from it.
+ * @addr: User space pointer to start of block to check
+ * @size: Size of block to check
+ *
+ * Context: User context only.  This function may sleep.
+ *
+ * Checks if a pointer to a block of memory in user space is valid.
+ *
+ * Returns true (nonzero) if the memory block may be valid, false (zero)
+ * if it is definitely invalid.
+ *
+ * Note that, depending on architecture, this function probably just
+ * checks that the pointer is in the user space range - after calling
+ * this function, memory access functions may still return -EFAULT.
+ */
+#define access_ok(type, addr, size)					\
+(	__chk_user_ptr(addr),						\
+	!__range_not_ok((unsigned long) (__force void *) (addr),	\
+			size, user_addr_max())				\
+)
+
 #define put_user __put_user
 #define get_user __get_user
 
@@ -219,7 +253,11 @@ extern long lstrnlen_user(const char __user *,long);
 /*
  * Complex access routines -- macros
  */
-#define user_addr_max() (~0UL)
+#ifdef CONFIG_COMPAT
+#define user_addr_max() (TASK_SIZE)
+#else
+#define user_addr_max() (DEFAULT_TASK_SIZE)
+#endif
 
 #define strnlen_user lstrnlen_user
 #define strlen_user(str) lstrnlen_user(str, 0x7fffffffL)
-- 
cgit 


From 1f2048fd8bc4219db821611da305a74f4b72b3c3 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Thu, 7 Nov 2013 17:08:36 +0100
Subject: parisc: signal fixup - SIGBUS vs. SIGSEGV

Clean up code to send correct signal on invalid memory accesses:
Send SIGBUS instead of SIGSEGV for memory accesses outside of mmap'ed
areas

This fixes the mmap13 testcase from the Linux Test Project.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/mm/fault.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index df0d32971cdf..7584a5df0fa4 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -280,12 +280,22 @@ bad_area:
 		}
 		show_regs(regs);
 #endif
-		/* FIXME: actually we need to get the signo and code correct */
-		si.si_signo = SIGSEGV;
+		switch (code) {
+		case 15:	/* Data TLB miss fault/Data page fault */
+		case 17:	/* NA data TLB miss / page fault */
+		case 18:	/* Unaligned access - PCXS only */
+			si.si_signo = SIGBUS;
+			si.si_code = BUS_ADRERR;
+			break;
+		case 16:	/* Non-access instruction TLB miss fault */
+		case 26:	/* PCXL: Data memory access rights trap */
+		default:
+			si.si_signo = SIGSEGV;
+			si.si_code = SEGV_MAPERR;
+		}
 		si.si_errno = 0;
-		si.si_code = SEGV_MAPERR;
 		si.si_addr = (void __user *) address;
-		force_sig_info(SIGSEGV, &si, current);
+		force_sig_info(si.si_signo, &si, current);
 		return;
 	}
 
-- 
cgit 


From c6bde215acfd637708142ae671843b6f0eadbc6d Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Wed, 6 Nov 2013 10:11:48 -0700
Subject: PCI: Add pci_upstream_bridge()

This adds a pci_upstream_bridge() interface to find the PCI-to-PCI bridge
upstream from a device.  This is typically just "dev->bus->self", but in
the case of a VF on a virtual bus, we have to start from the corresponding
PF.  Returns NULL if there is no upstream PCI bridge, i.e., if the device
is on a root bus.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
---
 include/linux/pci.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/linux/pci.h b/include/linux/pci.h
index d3a888ae4b2e..835ec7bf6c05 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -480,6 +480,15 @@ static inline bool pci_is_root_bus(struct pci_bus *pbus)
 	return !(pbus->parent);
 }
 
+static inline struct pci_dev *pci_upstream_bridge(struct pci_dev *dev)
+{
+	dev = pci_physfn(dev);
+	if (pci_is_root_bus(dev->bus))
+		return NULL;
+
+	return dev->bus->self;
+}
+
 #ifdef CONFIG_PCI_MSI
 static inline bool pci_dev_msi_enabled(struct pci_dev *pci_dev)
 {
-- 
cgit 


From 0219132fe7c26574371232b50db085573f6fbd3f Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Wed, 6 Nov 2013 23:38:59 +0100
Subject: parisc: sticon - unbreak on 64bit kernel

STI text console (sticon) was broken on 64bit machines with more than
4GB RAM and this lead in some cases to a kernel crash.

Since sticon uses the 32bit STI API it needs to keep pointers to memory
below 4GB. But on a 64bit kernel some memory regions (e.g. the kernel
stack) might be above 4GB which then may crash the kernel in the STI
functions.

Additionally sticon didn't selected the built-in framebuffer fonts by
default. This is now fixed.

On a side-note: Theoretically we could enhance the sticon driver to
use the 64bit STI API. But - beside the fact that some machines don't
provide a 64bit STI ROM - this would just add complexity.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org # 3.8+
---
 drivers/video/console/sticore.c | 166 +++++++++++++++++++++++++---------------
 drivers/video/sticore.h         |  62 ++++++++++++---
 drivers/video/stifb.c           |  10 +--
 3 files changed, 158 insertions(+), 80 deletions(-)

diff --git a/drivers/video/console/sticore.c b/drivers/video/console/sticore.c
index 35687fd56456..4ad24f2c6472 100644
--- a/drivers/video/console/sticore.c
+++ b/drivers/video/console/sticore.c
@@ -3,7 +3,7 @@
  *	core code for console driver using HP's STI firmware
  *
  *	Copyright (C) 2000 Philipp Rumpf <prumpf@tux.org>
- *	Copyright (C) 2001-2003 Helge Deller <deller@gmx.de>
+ *	Copyright (C) 2001-2013 Helge Deller <deller@gmx.de>
  *	Copyright (C) 2001-2002 Thomas Bogendoerfer <tsbogend@alpha.franken.de>
  * 
  * TODO:
@@ -30,7 +30,7 @@
 
 #include "../sticore.h"
 
-#define STI_DRIVERVERSION "Version 0.9a"
+#define STI_DRIVERVERSION "Version 0.9b"
 
 static struct sti_struct *default_sti __read_mostly;
 
@@ -73,28 +73,34 @@ static const struct sti_init_flags default_init_flags = {
 
 static int sti_init_graph(struct sti_struct *sti)
 {
-	struct sti_init_inptr_ext inptr_ext = { 0, };
-	struct sti_init_inptr inptr = {
-		.text_planes	= 3, /* # of text planes (max 3 for STI) */
-		.ext_ptr	= STI_PTR(&inptr_ext)
-	};
-	struct sti_init_outptr outptr = { 0, };
+	struct sti_init_inptr *inptr = &sti->sti_data->init_inptr;
+	struct sti_init_inptr_ext *inptr_ext = &sti->sti_data->init_inptr_ext;
+	struct sti_init_outptr *outptr = &sti->sti_data->init_outptr;
 	unsigned long flags;
-	int ret;
+	int ret, err;
 
 	spin_lock_irqsave(&sti->lock, flags);
 
-	ret = STI_CALL(sti->init_graph, &default_init_flags, &inptr,
-		&outptr, sti->glob_cfg);
+	memset(inptr, 0, sizeof(*inptr));
+	inptr->text_planes = 3; /* # of text planes (max 3 for STI) */
+	memset(inptr_ext, 0, sizeof(*inptr_ext));
+	inptr->ext_ptr = STI_PTR(inptr_ext);
+	outptr->errno = 0;
+
+	ret = sti_call(sti, sti->init_graph, &default_init_flags, inptr,
+		outptr, sti->glob_cfg);
+
+	if (ret >= 0)
+		sti->text_planes = outptr->text_planes;
+	err = outptr->errno;
 
 	spin_unlock_irqrestore(&sti->lock, flags);
 
 	if (ret < 0) {
-		printk(KERN_ERR "STI init_graph failed (ret %d, errno %d)\n",ret,outptr.errno);
+		pr_err("STI init_graph failed (ret %d, errno %d)\n", ret, err);
 		return -1;
 	}
 	
-	sti->text_planes = outptr.text_planes;
 	return 0;
 }
 
@@ -104,16 +110,18 @@ static const struct sti_conf_flags default_conf_flags = {
 
 static void sti_inq_conf(struct sti_struct *sti)
 {
-	struct sti_conf_inptr inptr = { 0, };
+	struct sti_conf_inptr *inptr = &sti->sti_data->inq_inptr;
+	struct sti_conf_outptr *outptr = &sti->sti_data->inq_outptr;
 	unsigned long flags;
 	s32 ret;
 
-	sti->outptr.ext_ptr = STI_PTR(&sti->outptr_ext);
+	outptr->ext_ptr = STI_PTR(&sti->sti_data->inq_outptr_ext);
 	
 	do {
 		spin_lock_irqsave(&sti->lock, flags);
-		ret = STI_CALL(sti->inq_conf, &default_conf_flags,
-			&inptr, &sti->outptr, sti->glob_cfg);
+		memset(inptr, 0, sizeof(*inptr));
+		ret = sti_call(sti, sti->inq_conf, &default_conf_flags,
+			inptr, outptr, sti->glob_cfg);
 		spin_unlock_irqrestore(&sti->lock, flags);
 	} while (ret == 1);
 }
@@ -126,7 +134,8 @@ static const struct sti_font_flags default_font_flags = {
 void
 sti_putc(struct sti_struct *sti, int c, int y, int x)
 {
-	struct sti_font_inptr inptr = {
+	struct sti_font_inptr *inptr = &sti->sti_data->font_inptr;
+	struct sti_font_inptr inptr_default = {
 		.font_start_addr= STI_PTR(sti->font->raw),
 		.index		= c_index(sti, c),
 		.fg_color	= c_fg(sti, c),
@@ -134,14 +143,15 @@ sti_putc(struct sti_struct *sti, int c, int y, int x)
 		.dest_x		= x * sti->font_width,
 		.dest_y		= y * sti->font_height,
 	};
-	struct sti_font_outptr outptr = { 0, };
+	struct sti_font_outptr *outptr = &sti->sti_data->font_outptr;
 	s32 ret;
 	unsigned long flags;
 
 	do {
 		spin_lock_irqsave(&sti->lock, flags);
-		ret = STI_CALL(sti->font_unpmv, &default_font_flags,
-			&inptr, &outptr, sti->glob_cfg);
+		*inptr = inptr_default;
+		ret = sti_call(sti, sti->font_unpmv, &default_font_flags,
+			inptr, outptr, sti->glob_cfg);
 		spin_unlock_irqrestore(&sti->lock, flags);
 	} while (ret == 1);
 }
@@ -156,7 +166,8 @@ void
 sti_set(struct sti_struct *sti, int src_y, int src_x,
 	int height, int width, u8 color)
 {
-	struct sti_blkmv_inptr inptr = {
+	struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
+	struct sti_blkmv_inptr inptr_default = {
 		.fg_color	= color,
 		.bg_color	= color,
 		.src_x		= src_x,
@@ -166,14 +177,15 @@ sti_set(struct sti_struct *sti, int src_y, int src_x,
 		.width		= width,
 		.height		= height,
 	};
-	struct sti_blkmv_outptr outptr = { 0, };
+	struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
 	s32 ret;
 	unsigned long flags;
 	
 	do {
 		spin_lock_irqsave(&sti->lock, flags);
-		ret = STI_CALL(sti->block_move, &clear_blkmv_flags,
-			&inptr, &outptr, sti->glob_cfg);
+		*inptr = inptr_default;
+		ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
+			inptr, outptr, sti->glob_cfg);
 		spin_unlock_irqrestore(&sti->lock, flags);
 	} while (ret == 1);
 }
@@ -182,7 +194,8 @@ void
 sti_clear(struct sti_struct *sti, int src_y, int src_x,
 	  int height, int width, int c)
 {
-	struct sti_blkmv_inptr inptr = {
+	struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
+	struct sti_blkmv_inptr inptr_default = {
 		.fg_color	= c_fg(sti, c),
 		.bg_color	= c_bg(sti, c),
 		.src_x		= src_x * sti->font_width,
@@ -192,14 +205,15 @@ sti_clear(struct sti_struct *sti, int src_y, int src_x,
 		.width		= width * sti->font_width,
 		.height		= height* sti->font_height,
 	};
-	struct sti_blkmv_outptr outptr = { 0, };
+	struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
 	s32 ret;
 	unsigned long flags;
 
 	do {
 		spin_lock_irqsave(&sti->lock, flags);
-		ret = STI_CALL(sti->block_move, &clear_blkmv_flags,
-			&inptr, &outptr, sti->glob_cfg);
+		*inptr = inptr_default;
+		ret = sti_call(sti, sti->block_move, &clear_blkmv_flags,
+			inptr, outptr, sti->glob_cfg);
 		spin_unlock_irqrestore(&sti->lock, flags);
 	} while (ret == 1);
 }
@@ -212,7 +226,8 @@ void
 sti_bmove(struct sti_struct *sti, int src_y, int src_x,
 	  int dst_y, int dst_x, int height, int width)
 {
-	struct sti_blkmv_inptr inptr = {
+	struct sti_blkmv_inptr *inptr = &sti->sti_data->blkmv_inptr;
+	struct sti_blkmv_inptr inptr_default = {
 		.src_x		= src_x * sti->font_width,
 		.src_y		= src_y * sti->font_height,
 		.dest_x		= dst_x * sti->font_width,
@@ -220,14 +235,15 @@ sti_bmove(struct sti_struct *sti, int src_y, int src_x,
 		.width		= width * sti->font_width,
 		.height		= height* sti->font_height,
 	};
-	struct sti_blkmv_outptr outptr = { 0, };
+	struct sti_blkmv_outptr *outptr = &sti->sti_data->blkmv_outptr;
 	s32 ret;
 	unsigned long flags;
 
 	do {
 		spin_lock_irqsave(&sti->lock, flags);
-		ret = STI_CALL(sti->block_move, &default_blkmv_flags,
-			&inptr, &outptr, sti->glob_cfg);
+		*inptr = inptr_default;
+		ret = sti_call(sti, sti->block_move, &default_blkmv_flags,
+			inptr, outptr, sti->glob_cfg);
 		spin_unlock_irqrestore(&sti->lock, flags);
 	} while (ret == 1);
 }
@@ -284,7 +300,7 @@ __setup("sti=", sti_setup);
 
 
 
-static char *font_name[MAX_STI_ROMS] = { "VGA8x16", };
+static char *font_name[MAX_STI_ROMS];
 static int font_index[MAX_STI_ROMS],
 	   font_height[MAX_STI_ROMS],
 	   font_width[MAX_STI_ROMS];
@@ -389,10 +405,10 @@ static void sti_dump_outptr(struct sti_struct *sti)
 		"%d used bits\n"
 		"%d planes\n"
 		"attributes %08x\n",
-		 sti->outptr.bits_per_pixel,
-		 sti->outptr.bits_used,
-		 sti->outptr.planes,
-		 sti->outptr.attributes));
+		 sti->sti_data->inq_outptr.bits_per_pixel,
+		 sti->sti_data->inq_outptr.bits_used,
+		 sti->sti_data->inq_outptr.planes,
+		 sti->sti_data->inq_outptr.attributes));
 }
 
 static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address,
@@ -402,24 +418,21 @@ static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address,
 	struct sti_glob_cfg_ext *glob_cfg_ext;
 	void *save_addr;
 	void *sti_mem_addr;
-	const int save_addr_size = 1024;	/* XXX */
-	int i;
+	int i, size;
 
-	if (!sti->sti_mem_request)
+	if (sti->sti_mem_request < 256)
 		sti->sti_mem_request = 256; /* STI default */
 
-	glob_cfg = kzalloc(sizeof(*sti->glob_cfg), GFP_KERNEL);
-	glob_cfg_ext = kzalloc(sizeof(*glob_cfg_ext), GFP_KERNEL);
-	save_addr = kzalloc(save_addr_size, GFP_KERNEL);
-	sti_mem_addr = kzalloc(sti->sti_mem_request, GFP_KERNEL);
+	size = sizeof(struct sti_all_data) + sti->sti_mem_request - 256;
 
-	if (!(glob_cfg && glob_cfg_ext && save_addr && sti_mem_addr)) {
-		kfree(glob_cfg);
-		kfree(glob_cfg_ext);
-		kfree(save_addr);
-		kfree(sti_mem_addr);
+	sti->sti_data = kzalloc(size, STI_LOWMEM);
+	if (!sti->sti_data)
 		return -ENOMEM;
-	}
+
+	glob_cfg	= &sti->sti_data->glob_cfg;
+	glob_cfg_ext	= &sti->sti_data->glob_cfg_ext;
+	save_addr	= &sti->sti_data->save_addr;
+	sti_mem_addr	= &sti->sti_data->sti_mem_addr;
 
 	glob_cfg->ext_ptr = STI_PTR(glob_cfg_ext);
 	glob_cfg->save_addr = STI_PTR(save_addr);
@@ -475,32 +488,31 @@ static int sti_init_glob_cfg(struct sti_struct *sti, unsigned long rom_address,
 	return 0;
 }
 
-#ifdef CONFIG_FB
+#ifdef CONFIG_FONTS
 static struct sti_cooked_font *
 sti_select_fbfont(struct sti_cooked_rom *cooked_rom, const char *fbfont_name)
 {
-	const struct font_desc *fbfont;
+	const struct font_desc *fbfont = NULL;
 	unsigned int size, bpc;
 	void *dest;
 	struct sti_rom_font *nf;
 	struct sti_cooked_font *cooked_font;
 	
-	if (!fbfont_name || !strlen(fbfont_name))
-		return NULL;
-	fbfont = find_font(fbfont_name);
+	if (fbfont_name && strlen(fbfont_name))
+		fbfont = find_font(fbfont_name);
 	if (!fbfont)
 		fbfont = get_default_font(1024,768, ~(u32)0, ~(u32)0);
 	if (!fbfont)
 		return NULL;
 
-	DPRINTK((KERN_DEBUG "selected %dx%d fb-font %s\n",
-			fbfont->width, fbfont->height, fbfont->name));
+	pr_info("STI selected %dx%d framebuffer font %s for sticon\n",
+			fbfont->width, fbfont->height, fbfont->name);
 			
 	bpc = ((fbfont->width+7)/8) * fbfont->height; 
 	size = bpc * 256;
 	size += sizeof(struct sti_rom_font);
 
-	nf = kzalloc(size, GFP_KERNEL);
+	nf = kzalloc(size, STI_LOWMEM);
 	if (!nf)
 		return NULL;
 
@@ -637,7 +649,7 @@ static void *sti_bmode_font_raw(struct sti_cooked_font *f)
 	unsigned char *n, *p, *q;
 	int size = f->raw->bytes_per_char*256+sizeof(struct sti_rom_font);
 	
-	n = kzalloc (4*size, GFP_KERNEL);
+	n = kzalloc(4*size, STI_LOWMEM);
 	if (!n)
 		return NULL;
 	p = n + 3;
@@ -673,7 +685,7 @@ static struct sti_rom *sti_get_bmode_rom (unsigned long address)
 	sti_bmode_rom_copy(address + BMODE_LAST_ADDR_OFFS, sizeof(size), &size);
 
 	size = (size+3) / 4;
-	raw = kmalloc(size, GFP_KERNEL);
+	raw = kmalloc(size, STI_LOWMEM);
 	if (raw) {
 		sti_bmode_rom_copy(address, size, raw);
 		memmove (&raw->res004, &raw->type[0], 0x3c);
@@ -707,7 +719,7 @@ static struct sti_rom *sti_get_wmode_rom(unsigned long address)
 	/* read the ROM size directly from the struct in ROM */ 
 	size = gsc_readl(address + offsetof(struct sti_rom,last_addr));
 
-	raw = kmalloc(size, GFP_KERNEL);
+	raw = kmalloc(size, STI_LOWMEM);
 	if (raw)
 		sti_rom_copy(address, size, raw);
 
@@ -743,6 +755,10 @@ static int sti_read_rom(int wordmode, struct sti_struct *sti,
 
 	address = (unsigned long) STI_PTR(raw);
 
+	pr_info("STI ROM supports 32 %sbit firmware functions.\n",
+		raw->alt_code_type == ALT_CODE_TYPE_PA_RISC_64
+		? "and 64 " : "");
+
 	sti->font_unpmv = address + (raw->font_unpmv & 0x03ffffff);
 	sti->block_move = address + (raw->block_move & 0x03ffffff);
 	sti->init_graph = address + (raw->init_graph & 0x03ffffff);
@@ -901,7 +917,8 @@ test_rom:
 	sti_dump_globcfg(sti->glob_cfg, sti->sti_mem_request);
 	sti_dump_outptr(sti);
 	
-	printk(KERN_INFO "    graphics card name: %s\n", sti->outptr.dev_name );
+	pr_info("    graphics card name: %s\n",
+		sti->sti_data->inq_outptr.dev_name);
 
 	sti_roms[num_sti_roms] = sti;
 	num_sti_roms++;
@@ -1073,6 +1090,29 @@ struct sti_struct * sti_get_rom(unsigned int index)
 }
 EXPORT_SYMBOL(sti_get_rom);
 
+
+int sti_call(const struct sti_struct *sti, unsigned long func,
+		const void *flags, void *inptr, void *outptr,
+		struct sti_glob_cfg *glob_cfg)
+{
+	unsigned long _flags = STI_PTR(flags);
+	unsigned long _inptr = STI_PTR(inptr);
+	unsigned long _outptr = STI_PTR(outptr);
+	unsigned long _glob_cfg = STI_PTR(glob_cfg);
+	int ret;
+
+#ifdef CONFIG_64BIT
+	/* Check for overflow when using 32bit STI on 64bit kernel. */
+	if (WARN_ONCE(_flags>>32 || _inptr>>32 || _outptr>>32 || _glob_cfg>>32,
+			"Out of 32bit-range pointers!"))
+		return -1;
+#endif
+
+	ret = pdc_sti_call(func, _flags, _inptr, _outptr, _glob_cfg);
+
+	return ret;
+}
+
 MODULE_AUTHOR("Philipp Rumpf, Helge Deller, Thomas Bogendoerfer");
 MODULE_DESCRIPTION("Core STI driver for HP's NGLE series graphics cards in HP PARISC machines");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/video/sticore.h b/drivers/video/sticore.h
index addf7b615ef8..af1619536ac8 100644
--- a/drivers/video/sticore.h
+++ b/drivers/video/sticore.h
@@ -18,6 +18,9 @@
 #define STI_FONT_HPROMAN8 1
 #define STI_FONT_KANA8 2
 
+#define ALT_CODE_TYPE_UNKNOWN 0x00	/* alt code type values */
+#define ALT_CODE_TYPE_PA_RISC_64 0x01
+
 /* The latency of the STI functions cannot really be reduced by setting
  * this to 0;  STI doesn't seem to be designed to allow calling a different
  * function (or the same function with different arguments) after a
@@ -40,14 +43,6 @@
 
 #define STI_PTR(p)	( virt_to_phys(p) )
 #define PTR_STI(p)	( phys_to_virt((unsigned long)p) )
-#define STI_CALL(func, flags, inptr, outptr, glob_cfg)	\
-       ({						\
-               pdc_sti_call( func, STI_PTR(flags),	\
-				   STI_PTR(inptr),	\
-				   STI_PTR(outptr),	\
-				   STI_PTR(glob_cfg));	\
-       })
-
 
 #define sti_onscreen_x(sti) (sti->glob_cfg->onscreen_x)
 #define sti_onscreen_y(sti) (sti->glob_cfg->onscreen_y)
@@ -56,6 +51,12 @@
 #define sti_font_x(sti) (PTR_STI(sti->font)->width)
 #define sti_font_y(sti) (PTR_STI(sti->font)->height)
 
+#ifdef CONFIG_64BIT
+#define STI_LOWMEM	(GFP_KERNEL | GFP_DMA)
+#else
+#define STI_LOWMEM	(GFP_KERNEL)
+#endif
+
 
 /* STI function configuration structs */
 
@@ -306,6 +307,34 @@ struct sti_blkmv_outptr {
 };
 
 
+/* sti_all_data is an internal struct which needs to be allocated in
+ * low memory (< 4GB) if STI is used with 32bit STI on a 64bit kernel */
+
+struct sti_all_data {
+	struct sti_glob_cfg glob_cfg;
+	struct sti_glob_cfg_ext glob_cfg_ext;
+
+	struct sti_conf_inptr		inq_inptr;
+	struct sti_conf_outptr		inq_outptr; /* configuration */
+	struct sti_conf_outptr_ext	inq_outptr_ext;
+
+	struct sti_init_inptr_ext	init_inptr_ext;
+	struct sti_init_inptr		init_inptr;
+	struct sti_init_outptr		init_outptr;
+
+	struct sti_blkmv_inptr		blkmv_inptr;
+	struct sti_blkmv_outptr		blkmv_outptr;
+
+	struct sti_font_inptr		font_inptr;
+	struct sti_font_outptr		font_outptr;
+
+	/* leave as last entries */
+	unsigned long save_addr[1024 / sizeof(unsigned long)];
+	   /* min 256 bytes which is STI default, max sti->sti_mem_request */
+	unsigned long sti_mem_addr[256 / sizeof(unsigned long)];
+	/* do not add something below here ! */
+};
+
 /* internal generic STI struct */
 
 struct sti_struct {
@@ -330,11 +359,9 @@ struct sti_struct {
 	region_t regions[STI_REGION_MAX];
 	unsigned long regions_phys[STI_REGION_MAX];
 
-	struct sti_glob_cfg *glob_cfg;
-	struct sti_cooked_font *font;	/* ptr to selected font (cooked) */
+	struct sti_glob_cfg *glob_cfg;	/* points into sti_all_data */
 
-	struct sti_conf_outptr outptr; /* configuration */
-	struct sti_conf_outptr_ext outptr_ext;
+	struct sti_cooked_font *font;	/* ptr to selected font (cooked) */
 
 	struct pci_dev *pd;
 
@@ -343,6 +370,9 @@ struct sti_struct {
 
 	/* pointer to the fb_info where this STI device is used */
 	struct fb_info *info;
+
+	/* pointer to all internal data */
+	struct sti_all_data *sti_data;
 };
 
 
@@ -350,6 +380,14 @@ struct sti_struct {
 
 struct sti_struct *sti_get_rom(unsigned int index); /* 0: default sti */
 
+
+/* sticore main function to call STI firmware */
+
+int sti_call(const struct sti_struct *sti, unsigned long func,
+		const void *flags, void *inptr, void *outptr,
+		struct sti_glob_cfg *glob_cfg);
+
+
 /* functions to call the STI ROM directly */
 
 void sti_putc(struct sti_struct *sti, int c, int y, int x);
diff --git a/drivers/video/stifb.c b/drivers/video/stifb.c
index 876648e15e9d..019a1feef995 100644
--- a/drivers/video/stifb.c
+++ b/drivers/video/stifb.c
@@ -1101,6 +1101,7 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref)
 	var = &info->var;
 
 	fb->sti = sti;
+	dev_name = sti->sti_data->inq_outptr.dev_name;
 	/* store upper 32bits of the graphics id */
 	fb->id = fb->sti->graphics_id[0];
 
@@ -1114,11 +1115,11 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref)
 		  Since this driver only supports standard mode, we check
 		  if the device name contains the string "DX" and tell the
 		  user how to reconfigure the card. */
-		if (strstr(sti->outptr.dev_name, "DX")) {
+		if (strstr(dev_name, "DX")) {
 		   printk(KERN_WARNING
 "WARNING: stifb framebuffer driver does not support '%s' in double-buffer mode.\n"
 "WARNING: Please disable the double-buffer mode in IPL menu (the PARISC-BIOS).\n",
-			sti->outptr.dev_name);
+			dev_name);
 		   goto out_err0;
 		}
 		/* fall though */
@@ -1130,7 +1131,7 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref)
 		break;
 	default:
 		printk(KERN_WARNING "stifb: '%s' (id: 0x%08x) not supported.\n",
-			sti->outptr.dev_name, fb->id);
+			dev_name, fb->id);
 		goto out_err0;
 	}
 	
@@ -1154,7 +1155,6 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref)
 		fb->id = S9000_ID_A1659A;
 		break;
 	case S9000_ID_TIMBER:	/* HP9000/710 Any (may be a grayscale device) */
-		dev_name = fb->sti->outptr.dev_name;
 		if (strstr(dev_name, "GRAYSCALE") || 
 		    strstr(dev_name, "Grayscale") ||
 		    strstr(dev_name, "grayscale"))
@@ -1290,7 +1290,7 @@ static int __init stifb_init_fb(struct sti_struct *sti, int bpp_pref)
 		var->xres, 
 		var->yres,
 		var->bits_per_pixel,
-		sti->outptr.dev_name,
+		dev_name,
 		fb->id, 
 		fix->mmio_start);
 
-- 
cgit 


From 79272138bd5c35edb9be5ae7b473a2741751a706 Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Wed, 6 Nov 2013 10:00:51 -0700
Subject: PCI: Enable upstream bridges even for VFs on virtual buses

Previously we enabled the upstream PCI-to-PCI bridge only when
"dev->bus->self != NULL".  In the case of a VF on a virtual bus, where
"bus->self == NULL", we didn't enable the upstream bridge.

This fixes that by enabling the upstream bridge of the PF corresponding to
the VF.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
---
 drivers/pci/pci.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index ac40f90cfd5f..d3ed931c0770 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -1148,12 +1148,12 @@ int pci_reenable_device(struct pci_dev *dev)
 
 static void pci_enable_bridge(struct pci_dev *dev)
 {
+	struct pci_dev *bridge;
 	int retval;
 
-	if (!dev)
-		return;
-
-	pci_enable_bridge(dev->bus->self);
+	bridge = pci_upstream_bridge(dev);
+	if (bridge)
+		pci_enable_bridge(bridge);
 
 	if (pci_is_enabled(dev)) {
 		if (!dev->is_busmaster)
@@ -1170,6 +1170,7 @@ static void pci_enable_bridge(struct pci_dev *dev)
 
 static int pci_enable_device_flags(struct pci_dev *dev, unsigned long flags)
 {
+	struct pci_dev *bridge;
 	int err;
 	int i, bars = 0;
 
@@ -1188,7 +1189,9 @@ static int pci_enable_device_flags(struct pci_dev *dev, unsigned long flags)
 	if (atomic_inc_return(&dev->enable_cnt) > 1)
 		return 0;		/* already enabled */
 
-	pci_enable_bridge(dev->bus->self);
+	bridge = pci_upstream_bridge(dev);
+	if (bridge)
+		pci_enable_bridge(bridge);
 
 	/* only skip sriov related */
 	for (i = 0; i <= PCI_ROM_RESOURCE; i++)
-- 
cgit 


From dce0ce46ca9a676e4d9b36432fea77330a0e901d Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Wed, 10 Jul 2013 23:52:52 +0200
Subject: parisc: add generic 32- and 64-bit defconfigs

New defconfigs which should be able to boot on any 32/64bit machine.
Many drivers are selected to be compiled-in to avoid the need for an
additional initrd and still being able to boot.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/configs/generic-32bit_defconfig | 328 ++++++++++++++++++++++++++
 arch/parisc/configs/generic-64bit_defconfig | 346 ++++++++++++++++++++++++++++
 2 files changed, 674 insertions(+)
 create mode 100644 arch/parisc/configs/generic-32bit_defconfig
 create mode 100644 arch/parisc/configs/generic-64bit_defconfig

diff --git a/arch/parisc/configs/generic-32bit_defconfig b/arch/parisc/configs/generic-32bit_defconfig
new file mode 100644
index 000000000000..33b148f825ba
--- /dev/null
+++ b/arch/parisc/configs/generic-32bit_defconfig
@@ -0,0 +1,328 @@
+CONFIG_LOCALVERSION="-32bit"
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_FHANDLE=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=16
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_RD_BZIP2=y
+CONFIG_RD_LZMA=y
+CONFIG_RD_LZO=y
+CONFIG_EXPERT=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_PERF_EVENTS=y
+CONFIG_SLAB=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+# CONFIG_LBDAF is not set
+# CONFIG_BLK_DEV_BSG is not set
+CONFIG_PA7100LC=y
+CONFIG_SMP=y
+CONFIG_HZ_100=y
+CONFIG_IOMMU_CCIO=y
+CONFIG_GSC_LASI=y
+CONFIG_GSC_WAX=y
+CONFIG_EISA=y
+CONFIG_PCI=y
+CONFIG_GSC_DINO=y
+CONFIG_PCI_LBA=y
+CONFIG_PCCARD=m
+CONFIG_YENTA=m
+# CONFIG_PDC_CHASSIS is not set
+# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
+CONFIG_BINFMT_MISC=m
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_XFRM_USER=m
+CONFIG_NET_KEY=m
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_BOOTP=y
+CONFIG_INET_AH=m
+CONFIG_INET_ESP=m
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+CONFIG_INET_DIAG=m
+CONFIG_LLC2=m
+# CONFIG_WIRELESS is not set
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+# CONFIG_STANDALONE is not set
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+CONFIG_PARPORT=y
+CONFIG_PARPORT_PC=m
+CONFIG_PARPORT_1284=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_CRYPTOLOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=6144
+CONFIG_IDE=y
+CONFIG_BLK_DEV_IDECD=y
+CONFIG_BLK_DEV_GENERIC=y
+CONFIG_BLK_DEV_NS87415=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_CHR_DEV_ST=y
+CONFIG_BLK_DEV_SR=y
+CONFIG_CHR_DEV_SG=y
+CONFIG_SCSI_LASI700=y
+CONFIG_SCSI_SYM53C8XX_2=y
+CONFIG_SCSI_ZALON=y
+CONFIG_SCSI_DH=y
+CONFIG_ATA=y
+CONFIG_MD=y
+CONFIG_BLK_DEV_MD=m
+CONFIG_MD_LINEAR=m
+CONFIG_MD_RAID0=m
+CONFIG_MD_RAID1=m
+CONFIG_MD_RAID10=m
+CONFIG_MD_RAID456=m
+CONFIG_BLK_DEV_DM=y
+CONFIG_DM_UEVENT=y
+CONFIG_NETDEVICES=y
+CONFIG_BONDING=m
+CONFIG_DUMMY=m
+CONFIG_TUN=m
+# CONFIG_NET_VENDOR_3COM is not set
+# CONFIG_NET_VENDOR_ADAPTEC is not set
+# CONFIG_NET_VENDOR_ALTEON is not set
+# CONFIG_NET_VENDOR_AMD is not set
+# CONFIG_NET_VENDOR_ATHEROS is not set
+# CONFIG_NET_CADENCE is not set
+# CONFIG_NET_VENDOR_BROADCOM is not set
+# CONFIG_NET_VENDOR_BROCADE is not set
+# CONFIG_NET_VENDOR_CHELSIO is not set
+# CONFIG_NET_VENDOR_CISCO is not set
+CONFIG_NET_TULIP=y
+CONFIG_TULIP=y
+# CONFIG_NET_VENDOR_DLINK is not set
+# CONFIG_NET_VENDOR_EMULEX is not set
+# CONFIG_NET_VENDOR_EXAR is not set
+# CONFIG_NET_VENDOR_HP is not set
+CONFIG_LASI_82596=y
+# CONFIG_NET_VENDOR_MELLANOX is not set
+# CONFIG_NET_VENDOR_MICREL is not set
+# CONFIG_NET_VENDOR_MYRI is not set
+# CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_NVIDIA is not set
+# CONFIG_NET_VENDOR_OKI is not set
+# CONFIG_NET_PACKET_ENGINE is not set
+# CONFIG_NET_VENDOR_QLOGIC is not set
+# CONFIG_NET_VENDOR_REALTEK is not set
+# CONFIG_NET_VENDOR_RDC is not set
+# CONFIG_NET_VENDOR_SEEQ is not set
+# CONFIG_NET_VENDOR_SILAN is not set
+# CONFIG_NET_VENDOR_SIS is not set
+# CONFIG_NET_VENDOR_STMICRO is not set
+# CONFIG_NET_VENDOR_SUN is not set
+# CONFIG_NET_VENDOR_TEHUTI is not set
+# CONFIG_NET_VENDOR_TI is not set
+# CONFIG_NET_VENDOR_VIA is not set
+CONFIG_PPP=m
+CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
+CONFIG_PPPOE=m
+# CONFIG_WLAN is not set
+CONFIG_INPUT_POLLDEV=y
+CONFIG_KEYBOARD_HIL_OLD=m
+CONFIG_KEYBOARD_HIL=m
+CONFIG_MOUSE_SERIAL=y
+CONFIG_INPUT_MISC=y
+CONFIG_INPUT_UINPUT=m
+CONFIG_LEGACY_PTY_COUNT=64
+CONFIG_SERIAL_8250=y
+# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=8
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_MANY_PORTS=y
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_PRINTER=m
+CONFIG_PPDEV=m
+# CONFIG_HW_RANDOM is not set
+CONFIG_I2C=y
+CONFIG_POWER_SUPPLY=y
+# CONFIG_HWMON is not set
+CONFIG_AGP=y
+CONFIG_VIDEO_OUTPUT_CONTROL=y
+CONFIG_FB=y
+CONFIG_FB_FOREIGN_ENDIAN=y
+CONFIG_FB_MODE_HELPERS=y
+CONFIG_FB_MATROX=m
+CONFIG_FB_MATROX_G=y
+CONFIG_FB_VOODOO1=m
+CONFIG_DUMMY_CONSOLE_COLUMNS=128
+CONFIG_DUMMY_CONSOLE_ROWS=48
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY=y
+CONFIG_LOGO=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+# CONFIG_LOGO_LINUX_CLUT224 is not set
+CONFIG_SOUND=m
+CONFIG_SND=m
+CONFIG_SND_SEQUENCER=m
+CONFIG_SND_MIXER_OSS=m
+CONFIG_SND_PCM_OSS=m
+CONFIG_SND_SEQUENCER_OSS=y
+CONFIG_SND_DYNAMIC_MINORS=y
+CONFIG_SND_AD1889=m
+CONFIG_SND_HARMONY=m
+CONFIG_HIDRAW=y
+CONFIG_HID_A4TECH=y
+CONFIG_HID_APPLE=y
+CONFIG_HID_BELKIN=y
+CONFIG_HID_CHERRY=y
+CONFIG_HID_CHICONY=y
+CONFIG_HID_CYPRESS=y
+CONFIG_HID_DRAGONRISE=y
+CONFIG_HID_EZKEY=y
+CONFIG_HID_KYE=y
+CONFIG_HID_GYRATION=y
+CONFIG_HID_TWINHAN=y
+CONFIG_HID_KENSINGTON=y
+CONFIG_HID_LOGITECH=y
+CONFIG_HID_LOGITECH_DJ=m
+CONFIG_HID_MICROSOFT=y
+CONFIG_HID_MONTEREY=y
+CONFIG_HID_NTRIG=y
+CONFIG_HID_ORTEK=y
+CONFIG_HID_PANTHERLORD=y
+CONFIG_HID_PETALYNX=y
+CONFIG_HID_SAMSUNG=y
+CONFIG_HID_SONY=y
+CONFIG_HID_SUNPLUS=y
+CONFIG_HID_GREENASIA=y
+CONFIG_HID_SMARTJOYPLUS=y
+CONFIG_HID_TOPSEED=y
+CONFIG_HID_THRUSTMASTER=y
+CONFIG_HID_ZEROPLUS=y
+CONFIG_USB=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_MON=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_UHCI_HCD=y
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_TIMER=y
+CONFIG_LEDS_TRIGGER_IDE_DISK=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=y
+CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
+CONFIG_DMADEVICES=y
+CONFIG_AUXDISPLAY=y
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_SECURITY=y
+CONFIG_EXT3_FS=y
+# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
+CONFIG_EXT3_FS_SECURITY=y
+CONFIG_EXT4_FS=y
+CONFIG_XFS_FS=m
+CONFIG_XFS_QUOTA=y
+CONFIG_XFS_RT=y
+CONFIG_QUOTA=y
+CONFIG_QUOTA_NETLINK_INTERFACE=y
+CONFIG_QFMT_V2=y
+CONFIG_AUTOFS4_FS=y
+CONFIG_ISO9660_FS=y
+CONFIG_JOLIET=y
+CONFIG_VFAT_FS=y
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_XATTR=y
+CONFIG_NFS_FS=m
+# CONFIG_NFS_V2 is not set
+CONFIG_NFSD=m
+CONFIG_NFSD_V3=y
+CONFIG_CIFS=m
+CONFIG_CIFS_WEAK_PW_HASH=y
+CONFIG_CIFS_XATTR=y
+CONFIG_CIFS_POSIX=y
+# CONFIG_CIFS_DEBUG is not set
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_CODEPAGE_737=m
+CONFIG_NLS_CODEPAGE_775=m
+CONFIG_NLS_CODEPAGE_850=m
+CONFIG_NLS_CODEPAGE_852=m
+CONFIG_NLS_CODEPAGE_855=m
+CONFIG_NLS_CODEPAGE_857=m
+CONFIG_NLS_CODEPAGE_860=m
+CONFIG_NLS_CODEPAGE_861=m
+CONFIG_NLS_CODEPAGE_862=m
+CONFIG_NLS_CODEPAGE_863=m
+CONFIG_NLS_CODEPAGE_864=m
+CONFIG_NLS_CODEPAGE_865=m
+CONFIG_NLS_CODEPAGE_866=m
+CONFIG_NLS_CODEPAGE_869=m
+CONFIG_NLS_CODEPAGE_936=m
+CONFIG_NLS_CODEPAGE_950=m
+CONFIG_NLS_CODEPAGE_932=m
+CONFIG_NLS_CODEPAGE_949=m
+CONFIG_NLS_CODEPAGE_874=m
+CONFIG_NLS_ISO8859_8=m
+CONFIG_NLS_CODEPAGE_1250=y
+CONFIG_NLS_CODEPAGE_1251=m
+CONFIG_NLS_ASCII=m
+CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_ISO8859_2=m
+CONFIG_NLS_ISO8859_3=m
+CONFIG_NLS_ISO8859_4=m
+CONFIG_NLS_ISO8859_5=m
+CONFIG_NLS_ISO8859_6=m
+CONFIG_NLS_ISO8859_7=m
+CONFIG_NLS_ISO8859_9=m
+CONFIG_NLS_ISO8859_13=m
+CONFIG_NLS_ISO8859_14=m
+CONFIG_NLS_ISO8859_15=m
+CONFIG_NLS_KOI8_R=m
+CONFIG_NLS_KOI8_U=m
+CONFIG_NLS_UTF8=y
+CONFIG_UNUSED_SYMBOLS=y
+CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_MEMORY_INIT=y
+CONFIG_DEBUG_STACKOVERFLOW=y
+CONFIG_DEBUG_SHIRQ=y
+CONFIG_DETECT_HUNG_TASK=y
+CONFIG_TIMER_STATS=y
+CONFIG_DEBUG_RT_MUTEXES=y
+CONFIG_RT_MUTEX_TESTER=y
+CONFIG_DEBUG_SPINLOCK=y
+CONFIG_DEBUG_MUTEXES=y
+CONFIG_RCU_CPU_STALL_INFO=y
+CONFIG_LATENCYTOP=y
+CONFIG_LKDTM=m
+CONFIG_KEYS=y
+CONFIG_KEYS_DEBUG_PROC_KEYS=y
+CONFIG_CRYPTO_NULL=m
+CONFIG_CRYPTO_TEST=m
+CONFIG_CRYPTO_HMAC=y
+CONFIG_CRYPTO_MD5=y
+CONFIG_CRYPTO_MICHAEL_MIC=m
+CONFIG_CRYPTO_SHA1=y
+CONFIG_CRYPTO_SHA512=m
+CONFIG_CRYPTO_TGR192=m
+CONFIG_CRYPTO_WP512=m
+CONFIG_CRYPTO_ANUBIS=m
+CONFIG_CRYPTO_BLOWFISH=m
+CONFIG_CRYPTO_CAST5=m
+CONFIG_CRYPTO_CAST6=m
+CONFIG_CRYPTO_DES=y
+CONFIG_CRYPTO_KHAZAD=m
+CONFIG_CRYPTO_SERPENT=m
+CONFIG_CRYPTO_TEA=m
+CONFIG_CRYPTO_TWOFISH=m
+CONFIG_CRYPTO_DEFLATE=y
+# CONFIG_CRYPTO_ANSI_CPRNG is not set
+CONFIG_CRC_CCITT=m
+CONFIG_CRC_T10DIF=y
+CONFIG_FONTS=y
diff --git a/arch/parisc/configs/generic-64bit_defconfig b/arch/parisc/configs/generic-64bit_defconfig
new file mode 100644
index 000000000000..5874cebee077
--- /dev/null
+++ b/arch/parisc/configs/generic-64bit_defconfig
@@ -0,0 +1,346 @@
+CONFIG_LOCALVERSION="-64bit"
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+# CONFIG_UTS_NS is not set
+# CONFIG_IPC_NS is not set
+# CONFIG_PID_NS is not set
+# CONFIG_NET_NS is not set
+CONFIG_RELAY=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+# CONFIG_COMPAT_BRK is not set
+CONFIG_MODULES=y
+CONFIG_MODULE_FORCE_LOAD=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_MODVERSIONS=y
+CONFIG_BLK_DEV_INTEGRITY=y
+# CONFIG_IOSCHED_DEADLINE is not set
+CONFIG_PA8X00=y
+CONFIG_MLONGCALLS=y
+CONFIG_64BIT=y
+CONFIG_SMP=y
+# CONFIG_COMPACTION is not set
+CONFIG_HPPB=y
+CONFIG_IOMMU_CCIO=y
+CONFIG_GSC_LASI=y
+CONFIG_GSC_WAX=y
+CONFIG_PCI=y
+CONFIG_PCI_STUB=m
+CONFIG_PCI_IOV=y
+CONFIG_GSC_DINO=y
+CONFIG_PCI_LBA=y
+CONFIG_BINFMT_MISC=m
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_XFRM_USER=m
+CONFIG_XFRM_SUB_POLICY=y
+CONFIG_XFRM_MIGRATE=y
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_BOOTP=y
+CONFIG_INET_AH=m
+CONFIG_INET_ESP=m
+CONFIG_INET_XFRM_MODE_TRANSPORT=m
+CONFIG_INET_XFRM_MODE_TUNNEL=m
+CONFIG_INET_XFRM_MODE_BEET=m
+CONFIG_INET_LRO=m
+CONFIG_INET_DIAG=m
+CONFIG_NETFILTER=y
+# CONFIG_NETFILTER_ADVANCED is not set
+CONFIG_NETFILTER_NETLINK_LOG=y
+CONFIG_DCB=y
+# CONFIG_WIRELESS is not set
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_IDE=y
+CONFIG_IDE_GD=m
+CONFIG_IDE_GD_ATAPI=y
+CONFIG_BLK_DEV_IDECD=m
+CONFIG_BLK_DEV_NS87415=y
+CONFIG_BLK_DEV_SIIMAGE=y
+# CONFIG_SCSI_PROC_FS is not set
+CONFIG_BLK_DEV_SD=y
+CONFIG_BLK_DEV_SR=y
+CONFIG_SCSI_ISCSI_ATTRS=y
+CONFIG_SCSI_SRP_ATTRS=y
+CONFIG_ISCSI_BOOT_SYSFS=y
+CONFIG_SCSI_MPT2SAS=y
+CONFIG_SCSI_LASI700=m
+CONFIG_SCSI_SYM53C8XX_2=y
+CONFIG_SCSI_ZALON=y
+CONFIG_SCSI_QLA_ISCSI=m
+CONFIG_SCSI_DH=y
+CONFIG_ATA=y
+CONFIG_ATA_GENERIC=y
+CONFIG_MD=y
+CONFIG_MD_LINEAR=m
+CONFIG_MD_RAID0=m
+CONFIG_BLK_DEV_DM=m
+CONFIG_DM_RAID=m
+CONFIG_DM_UEVENT=y
+CONFIG_FUSION=y
+CONFIG_FUSION_SPI=y
+CONFIG_FUSION_SAS=y
+CONFIG_NETDEVICES=y
+CONFIG_DUMMY=m
+CONFIG_MACVLAN=m
+CONFIG_MACVTAP=m
+CONFIG_NETCONSOLE=m
+CONFIG_NETCONSOLE_DYNAMIC=y
+CONFIG_TUN=y
+# CONFIG_NET_VENDOR_3COM is not set
+# CONFIG_NET_VENDOR_ADAPTEC is not set
+# CONFIG_NET_VENDOR_ALTEON is not set
+# CONFIG_NET_VENDOR_AMD is not set
+# CONFIG_NET_VENDOR_ATHEROS is not set
+# CONFIG_NET_CADENCE is not set
+# CONFIG_NET_VENDOR_BROADCOM is not set
+# CONFIG_NET_VENDOR_BROCADE is not set
+# CONFIG_NET_VENDOR_CHELSIO is not set
+# CONFIG_NET_VENDOR_CISCO is not set
+CONFIG_NET_TULIP=y
+CONFIG_TULIP=y
+# CONFIG_NET_VENDOR_DLINK is not set
+# CONFIG_NET_VENDOR_EMULEX is not set
+# CONFIG_NET_VENDOR_EXAR is not set
+CONFIG_HP100=m
+CONFIG_E1000=y
+CONFIG_LASI_82596=y
+# CONFIG_NET_VENDOR_MARVELL is not set
+# CONFIG_NET_VENDOR_MELLANOX is not set
+# CONFIG_NET_VENDOR_MICREL is not set
+# CONFIG_NET_VENDOR_MYRI is not set
+# CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_NVIDIA is not set
+# CONFIG_NET_VENDOR_OKI is not set
+CONFIG_QLA3XXX=m
+CONFIG_QLCNIC=m
+CONFIG_QLGE=m
+# CONFIG_NET_VENDOR_REALTEK is not set
+# CONFIG_NET_VENDOR_RDC is not set
+# CONFIG_NET_VENDOR_SEEQ is not set
+# CONFIG_NET_VENDOR_SILAN is not set
+# CONFIG_NET_VENDOR_SIS is not set
+# CONFIG_NET_VENDOR_SMSC is not set
+# CONFIG_NET_VENDOR_STMICRO is not set
+# CONFIG_NET_VENDOR_SUN is not set
+# CONFIG_NET_VENDOR_TEHUTI is not set
+# CONFIG_NET_VENDOR_TI is not set
+# CONFIG_NET_VENDOR_VIA is not set
+# CONFIG_NET_VENDOR_WIZNET is not set
+CONFIG_PHYLIB=y
+CONFIG_MARVELL_PHY=m
+CONFIG_DAVICOM_PHY=m
+CONFIG_QSEMI_PHY=m
+CONFIG_LXT_PHY=m
+CONFIG_CICADA_PHY=m
+CONFIG_VITESSE_PHY=m
+CONFIG_SMSC_PHY=m
+CONFIG_BROADCOM_PHY=m
+CONFIG_ICPLUS_PHY=m
+CONFIG_REALTEK_PHY=m
+CONFIG_NATIONAL_PHY=m
+CONFIG_STE10XP=m
+CONFIG_LSI_ET1011C_PHY=m
+CONFIG_MDIO_BITBANG=m
+CONFIG_SLIP=m
+CONFIG_SLIP_COMPRESSED=y
+CONFIG_SLIP_SMART=y
+CONFIG_SLIP_MODE_SLIP6=y
+# CONFIG_WLAN is not set
+CONFIG_INPUT_EVDEV=y
+# CONFIG_KEYBOARD_HIL_OLD is not set
+# CONFIG_KEYBOARD_HIL is not set
+# CONFIG_INPUT_MOUSE is not set
+CONFIG_INPUT_MISC=y
+CONFIG_SERIO_SERPORT=m
+# CONFIG_HP_SDC is not set
+CONFIG_SERIO_RAW=m
+CONFIG_DEVPTS_MULTIPLE_INSTANCES=y
+# CONFIG_LEGACY_PTYS is not set
+CONFIG_NOZOMI=m
+# CONFIG_DEVKMEM is not set
+CONFIG_SERIAL_8250=y
+# CONFIG_SERIAL_8250_DEPRECATED_OPTIONS is not set
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_NR_UARTS=8
+CONFIG_SERIAL_8250_RUNTIME_UARTS=8
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_MANY_PORTS=y
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_JSM=m
+CONFIG_IPMI_HANDLER=y
+CONFIG_IPMI_DEVICE_INTERFACE=y
+CONFIG_IPMI_SI=y
+# CONFIG_HW_RANDOM is not set
+CONFIG_TCG_TPM=m
+CONFIG_TCG_ATMEL=m
+CONFIG_PTP_1588_CLOCK=m
+CONFIG_SENSORS_I5K_AMB=m
+CONFIG_SENSORS_F71882FG=m
+CONFIG_SENSORS_PC87427=m
+CONFIG_SENSORS_VT1211=m
+CONFIG_SENSORS_VT8231=m
+CONFIG_SENSORS_W83627EHF=m
+CONFIG_WATCHDOG=y
+CONFIG_SOFT_WATCHDOG=m
+CONFIG_SSB=m
+CONFIG_SSB_DRIVER_PCICORE=y
+CONFIG_HTC_PASIC3=m
+CONFIG_LPC_SCH=m
+CONFIG_MFD_SM501=m
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=m
+CONFIG_REGULATOR_USERSPACE_CONSUMER=m
+CONFIG_MEDIA_SUPPORT=m
+CONFIG_AGP=y
+CONFIG_AGP_PARISC=y
+CONFIG_DRM=y
+CONFIG_DRM_RADEON=y
+CONFIG_DRM_RADEON_UMS=y
+CONFIG_FIRMWARE_EDID=y
+CONFIG_FB_MODE_HELPERS=y
+CONFIG_BACKLIGHT_LCD_SUPPORT=y
+# CONFIG_BACKLIGHT_GENERIC is not set
+CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
+CONFIG_LOGO=y
+# CONFIG_LOGO_LINUX_MONO is not set
+CONFIG_HID=m
+CONFIG_HIDRAW=y
+CONFIG_HID_DRAGONRISE=m
+CONFIG_DRAGONRISE_FF=y
+CONFIG_HID_KYE=m
+CONFIG_HID_GYRATION=m
+CONFIG_HID_TWINHAN=m
+CONFIG_LOGITECH_FF=y
+CONFIG_LOGIRUMBLEPAD2_FF=y
+CONFIG_HID_NTRIG=m
+CONFIG_HID_PANTHERLORD=m
+CONFIG_PANTHERLORD_FF=y
+CONFIG_HID_PETALYNX=m
+CONFIG_HID_SAMSUNG=m
+CONFIG_HID_SONY=m
+CONFIG_HID_SUNPLUS=m
+CONFIG_HID_GREENASIA=m
+CONFIG_GREENASIA_FF=y
+CONFIG_HID_SMARTJOYPLUS=m
+CONFIG_SMARTJOYPLUS_FF=y
+CONFIG_HID_TOPSEED=m
+CONFIG_HID_THRUSTMASTER=m
+CONFIG_THRUSTMASTER_FF=y
+CONFIG_HID_ZEROPLUS=m
+CONFIG_ZEROPLUS_FF=y
+CONFIG_USB_HID=m
+CONFIG_HID_PID=y
+CONFIG_USB_HIDDEV=y
+CONFIG_USB=y
+CONFIG_USB_DEBUG=y
+CONFIG_USB_ANNOUNCE_NEW_DEVICES=y
+CONFIG_USB_DYNAMIC_MINORS=y
+CONFIG_USB_MON=m
+CONFIG_USB_WUSB_CBAF=m
+CONFIG_USB_XHCI_HCD=m
+CONFIG_USB_EHCI_HCD=m
+CONFIG_USB_OHCI_HCD=m
+CONFIG_USB_R8A66597_HCD=m
+CONFIG_USB_ACM=m
+CONFIG_USB_PRINTER=m
+CONFIG_USB_WDM=m
+CONFIG_USB_TMC=m
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_LEDS_TRIGGER_TIMER=y
+CONFIG_LEDS_TRIGGER_ONESHOT=y
+CONFIG_LEDS_TRIGGER_IDE_DISK=y
+CONFIG_LEDS_TRIGGER_HEARTBEAT=m
+CONFIG_LEDS_TRIGGER_BACKLIGHT=m
+CONFIG_LEDS_TRIGGER_DEFAULT_ON=m
+CONFIG_UIO=y
+CONFIG_UIO_PDRV_GENIRQ=m
+CONFIG_UIO_AEC=m
+CONFIG_UIO_SERCOS3=m
+CONFIG_UIO_PCI_GENERIC=m
+CONFIG_STAGING=y
+# CONFIG_NET_VENDOR_SILICOM is not set
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_SECURITY=y
+CONFIG_EXT3_FS=y
+CONFIG_EXT3_FS_SECURITY=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_XFS_FS=m
+CONFIG_BTRFS_FS=m
+CONFIG_QUOTA=y
+CONFIG_QUOTA_NETLINK_INTERFACE=y
+CONFIG_QFMT_V2=y
+CONFIG_AUTOFS4_FS=y
+CONFIG_FUSE_FS=y
+CONFIG_CUSE=y
+CONFIG_ISO9660_FS=y
+CONFIG_UDF_FS=y
+CONFIG_VFAT_FS=m
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_XATTR=y
+CONFIG_CONFIGFS_FS=y
+CONFIG_SYSV_FS=y
+CONFIG_NFS_FS=m
+CONFIG_NFS_V4=m
+CONFIG_NFS_V4_1=y
+CONFIG_NFSD=m
+CONFIG_NFSD_V4=y
+CONFIG_NLS_DEFAULT="utf8"
+CONFIG_NLS_CODEPAGE_437=m
+CONFIG_NLS_CODEPAGE_850=m
+CONFIG_NLS_CODEPAGE_852=m
+CONFIG_NLS_CODEPAGE_1250=m
+CONFIG_NLS_CODEPAGE_1251=m
+CONFIG_NLS_ASCII=m
+CONFIG_NLS_ISO8859_1=m
+CONFIG_NLS_ISO8859_2=m
+CONFIG_NLS_UTF8=m
+CONFIG_PRINTK_TIME=y
+CONFIG_STRIP_ASM_SYMS=y
+CONFIG_UNUSED_SYMBOLS=y
+CONFIG_DEBUG_FS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_DEBUG_STACKOVERFLOW=y
+CONFIG_LOCKUP_DETECTOR=y
+CONFIG_BOOTPARAM_SOFTLOCKUP_PANIC=y
+CONFIG_BOOTPARAM_HUNG_TASK_PANIC=y
+# CONFIG_SCHED_DEBUG is not set
+CONFIG_TIMER_STATS=y
+CONFIG_DEBUG_STRICT_USER_COPY_CHECKS=y
+CONFIG_CRYPTO_MANAGER=y
+CONFIG_CRYPTO_ECB=m
+CONFIG_CRYPTO_PCBC=m
+CONFIG_CRYPTO_MD4=m
+CONFIG_CRYPTO_MD5=y
+CONFIG_CRYPTO_MICHAEL_MIC=m
+CONFIG_CRYPTO_SHA256=m
+CONFIG_CRYPTO_ARC4=m
+CONFIG_CRYPTO_FCRYPT=m
+CONFIG_CRYPTO_DEFLATE=m
+# CONFIG_CRYPTO_HW is not set
+CONFIG_CRC_CCITT=m
+CONFIG_LIBCRC32C=y
+CONFIG_XZ_DEC_X86=y
+CONFIG_XZ_DEC_POWERPC=y
+CONFIG_XZ_DEC_IA64=y
+CONFIG_XZ_DEC_ARM=y
+CONFIG_XZ_DEC_ARMTHUMB=y
+CONFIG_XZ_DEC_SPARC=y
-- 
cgit 


From 5277797dc4ed873d067477d84e910b39d113f649 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Wed, 6 Nov 2013 21:03:43 -0800
Subject: target: Add percpu refcounting for se_lun access

This patch adds percpu refcounting for se_lun access that allows the
association of an se_lun + se_cmd in transport_lookup_cmd_lun() to
occur without an extra list_head for tracking outstanding I/O during
se_lun shutdown.

This effectively changes se_lun shutdown logic to wait for outstanding
I/O percpu references to complete in transport_lun_remove_cmd() using
se_lun->lun_ref_comp, instead of explicitly draining the per se_lun
command list and waiting for individual se_cmd descriptor processing
to complete.

Cc: Kent Overstreet <kmo@daterainc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/target_core_device.c    | 10 ++++++----
 drivers/target/target_core_internal.h  |  2 +-
 drivers/target/target_core_tpg.c       | 27 ++++++++++++++++++++++++---
 drivers/target/target_core_transport.c | 18 ++++++++----------
 drivers/target/target_core_xcopy.c     |  1 +
 include/target/target_core_base.h      |  5 +++++
 6 files changed, 45 insertions(+), 18 deletions(-)

diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index d90dbb0f1a69..569a3c7c9e5a 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -92,6 +92,9 @@ transport_lookup_cmd_lun(struct se_cmd *se_cmd, u32 unpacked_lun)
 		se_cmd->pr_res_key = deve->pr_res_key;
 		se_cmd->orig_fe_lun = unpacked_lun;
 		se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
+
+		percpu_ref_get(&se_lun->lun_ref);
+		se_cmd->lun_ref_active = true;
 	}
 	spin_unlock_irqrestore(&se_sess->se_node_acl->device_list_lock, flags);
 
@@ -119,6 +122,9 @@ transport_lookup_cmd_lun(struct se_cmd *se_cmd, u32 unpacked_lun)
 		se_cmd->se_lun = &se_sess->se_tpg->tpg_virt_lun0;
 		se_cmd->orig_fe_lun = 0;
 		se_cmd->se_cmd_flags |= SCF_SE_LUN_CMD;
+
+		percpu_ref_get(&se_lun->lun_ref);
+		se_cmd->lun_ref_active = true;
 	}
 
 	/* Directly associate cmd with se_dev */
@@ -134,10 +140,6 @@ transport_lookup_cmd_lun(struct se_cmd *se_cmd, u32 unpacked_lun)
 		dev->read_bytes += se_cmd->data_length;
 	spin_unlock_irqrestore(&dev->stats_lock, flags);
 
-	spin_lock_irqsave(&se_lun->lun_cmd_lock, flags);
-	list_add_tail(&se_cmd->se_lun_node, &se_lun->lun_cmd_list);
-	spin_unlock_irqrestore(&se_lun->lun_cmd_lock, flags);
-
 	return 0;
 }
 EXPORT_SYMBOL(transport_lookup_cmd_lun);
diff --git a/drivers/target/target_core_internal.h b/drivers/target/target_core_internal.h
index 889af4df8562..47b63b094cdc 100644
--- a/drivers/target/target_core_internal.h
+++ b/drivers/target/target_core_internal.h
@@ -100,7 +100,7 @@ int	transport_dump_vpd_assoc(struct t10_vpd *, unsigned char *, int);
 int	transport_dump_vpd_ident_type(struct t10_vpd *, unsigned char *, int);
 int	transport_dump_vpd_ident(struct t10_vpd *, unsigned char *, int);
 bool	target_stop_cmd(struct se_cmd *cmd, unsigned long *flags);
-int	transport_clear_lun_from_sessions(struct se_lun *);
+int	transport_clear_lun_ref(struct se_lun *);
 void	transport_send_task_abort(struct se_cmd *);
 sense_reason_t	target_cmd_size_check(struct se_cmd *cmd, unsigned int size);
 void	target_qf_do_work(struct work_struct *work);
diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c
index ec992208dc55..f321af04ef03 100644
--- a/drivers/target/target_core_tpg.c
+++ b/drivers/target/target_core_tpg.c
@@ -634,6 +634,13 @@ int core_tpg_set_initiator_node_tag(
 }
 EXPORT_SYMBOL(core_tpg_set_initiator_node_tag);
 
+static void core_tpg_lun_ref_release(struct percpu_ref *ref)
+{
+	struct se_lun *lun = container_of(ref, struct se_lun, lun_ref);
+
+	complete(&lun->lun_ref_comp);
+}
+
 static int core_tpg_setup_virtual_lun0(struct se_portal_group *se_tpg)
 {
 	/* Set in core_dev_setup_virtual_lun0() */
@@ -651,11 +658,18 @@ static int core_tpg_setup_virtual_lun0(struct se_portal_group *se_tpg)
 	spin_lock_init(&lun->lun_acl_lock);
 	spin_lock_init(&lun->lun_cmd_lock);
 	spin_lock_init(&lun->lun_sep_lock);
+	init_completion(&lun->lun_ref_comp);
 
-	ret = core_tpg_post_addlun(se_tpg, lun, lun_access, dev);
+	ret = percpu_ref_init(&lun->lun_ref, core_tpg_lun_ref_release);
 	if (ret < 0)
 		return ret;
 
+	ret = core_tpg_post_addlun(se_tpg, lun, lun_access, dev);
+	if (ret < 0) {
+		percpu_ref_cancel_init(&lun->lun_ref);
+		return ret;
+	}
+
 	return 0;
 }
 
@@ -696,6 +710,7 @@ int core_tpg_register(
 		spin_lock_init(&lun->lun_acl_lock);
 		spin_lock_init(&lun->lun_cmd_lock);
 		spin_lock_init(&lun->lun_sep_lock);
+		init_completion(&lun->lun_ref_comp);
 	}
 
 	se_tpg->se_tpg_type = se_tpg_type;
@@ -816,10 +831,16 @@ int core_tpg_post_addlun(
 {
 	int ret;
 
-	ret = core_dev_export(lun_ptr, tpg, lun);
+	ret = percpu_ref_init(&lun->lun_ref, core_tpg_lun_ref_release);
 	if (ret < 0)
 		return ret;
 
+	ret = core_dev_export(lun_ptr, tpg, lun);
+	if (ret < 0) {
+		percpu_ref_cancel_init(&lun->lun_ref);
+		return ret;
+	}
+
 	spin_lock(&tpg->tpg_lun_lock);
 	lun->lun_access = lun_access;
 	lun->lun_status = TRANSPORT_LUN_STATUS_ACTIVE;
@@ -833,7 +854,7 @@ static void core_tpg_shutdown_lun(
 	struct se_lun *lun)
 {
 	core_clear_lun_from_tpg(lun, tpg);
-	transport_clear_lun_from_sessions(lun);
+	transport_clear_lun_ref(lun);
 }
 
 struct se_lun *core_tpg_pre_dellun(
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 84747cc1aac0..ad143d7293ec 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -575,15 +575,11 @@ static int transport_cmd_check_stop_to_fabric(struct se_cmd *cmd)
 static void transport_lun_remove_cmd(struct se_cmd *cmd)
 {
 	struct se_lun *lun = cmd->se_lun;
-	unsigned long flags;
 
-	if (!lun)
+	if (!lun || !cmd->lun_ref_active)
 		return;
 
-	spin_lock_irqsave(&lun->lun_cmd_lock, flags);
-	if (!list_empty(&cmd->se_lun_node))
-		list_del_init(&cmd->se_lun_node);
-	spin_unlock_irqrestore(&lun->lun_cmd_lock, flags);
+	percpu_ref_put(&lun->lun_ref);
 }
 
 void transport_cmd_finish_abort(struct se_cmd *cmd, int remove)
@@ -2537,21 +2533,23 @@ check_cond:
 	spin_unlock_irqrestore(&lun->lun_cmd_lock, lun_flags);
 }
 
-static int transport_clear_lun_thread(void *p)
+static int transport_clear_lun_ref_thread(void *p)
 {
 	struct se_lun *lun = p;
 
-	__transport_clear_lun_from_sessions(lun);
+	percpu_ref_kill(&lun->lun_ref);
+
+	wait_for_completion(&lun->lun_ref_comp);
 	complete(&lun->lun_shutdown_comp);
 
 	return 0;
 }
 
-int transport_clear_lun_from_sessions(struct se_lun *lun)
+int transport_clear_lun_ref(struct se_lun *lun)
 {
 	struct task_struct *kt;
 
-	kt = kthread_run(transport_clear_lun_thread, lun,
+	kt = kthread_run(transport_clear_lun_ref_thread, lun,
 			"tcm_cl_%u", lun->unpacked_lun);
 	if (IS_ERR(kt)) {
 		pr_err("Unable to start clear_lun thread\n");
diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c
index 4d22e7d2adca..7a870f6add7b 100644
--- a/drivers/target/target_core_xcopy.c
+++ b/drivers/target/target_core_xcopy.c
@@ -579,6 +579,7 @@ static int target_xcopy_init_pt_lun(
 	spin_lock_init(&pt_cmd->se_lun->lun_acl_lock);
 	spin_lock_init(&pt_cmd->se_lun->lun_cmd_lock);
 	spin_lock_init(&pt_cmd->se_lun->lun_sep_lock);
+	init_completion(&pt_cmd->se_lun->lun_ref_comp);
 
 	pt_cmd->se_dev = se_dev;
 
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 22e752c4406d..4d16fd9330a6 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -499,6 +499,9 @@ struct se_cmd {
 
 	/* backend private data */
 	void			*priv;
+
+	/* Used for lun->lun_ref counting */
+	bool			lun_ref_active;
 };
 
 struct se_ua {
@@ -757,6 +760,8 @@ struct se_lun {
 	struct se_port		*lun_sep;
 	struct config_group	lun_group;
 	struct se_port_stat_grps port_stat_grps;
+	struct completion	lun_ref_comp;
+	struct percpu_ref	lun_ref;
 };
 
 struct scsi_port_stats {
-- 
cgit 


From 4a9a6c8d538eff6d627fa14409c7c25aff652541 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Wed, 6 Nov 2013 21:05:19 -0800
Subject: target: Drop left-over se_lun->lun_cmd_list shutdown code

Now with percpu refcounting for se_lun in place, go ahead and drop
the legacy per se_cmd accounting for se_lun shutdown.

This includes __transport_clear_lun_from_sessions(), the associated
transport_lun_wait_for_tasks() logic, along with a handful of now
unused se_cmd structure members and ->transport_state bits.

Cc: Kent Overstreet <kmo@daterainc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/infiniband/ulp/srpt/ib_srpt.c  |  10 --
 drivers/target/target_core_tpg.c       |  15 +--
 drivers/target/target_core_transport.c | 219 +--------------------------------
 drivers/target/target_core_xcopy.c     |   2 -
 include/target/target_core_base.h      |  13 +-
 5 files changed, 7 insertions(+), 252 deletions(-)

diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 653ac6bfc57a..16087966cb7d 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -1352,11 +1352,8 @@ static int srpt_abort_cmd(struct srpt_send_ioctx *ioctx)
 
 		/* XXX(hch): this is a horrible layering violation.. */
 		spin_lock_irqsave(&ioctx->cmd.t_state_lock, flags);
-		ioctx->cmd.transport_state |= CMD_T_LUN_STOP;
 		ioctx->cmd.transport_state &= ~CMD_T_ACTIVE;
 		spin_unlock_irqrestore(&ioctx->cmd.t_state_lock, flags);
-
-		complete(&ioctx->cmd.transport_lun_stop_comp);
 		break;
 	case SRPT_STATE_CMD_RSP_SENT:
 		/*
@@ -1364,9 +1361,6 @@ static int srpt_abort_cmd(struct srpt_send_ioctx *ioctx)
 		 * not been received in time.
 		 */
 		srpt_unmap_sg_to_ib_sge(ioctx->ch, ioctx);
-		spin_lock_irqsave(&ioctx->cmd.t_state_lock, flags);
-		ioctx->cmd.transport_state |= CMD_T_LUN_STOP;
-		spin_unlock_irqrestore(&ioctx->cmd.t_state_lock, flags);
 		target_put_sess_cmd(ioctx->ch->sess, &ioctx->cmd);
 		break;
 	case SRPT_STATE_MGMT_RSP_SENT:
@@ -1476,7 +1470,6 @@ static void srpt_handle_rdma_err_comp(struct srpt_rdma_ch *ch,
 {
 	struct se_cmd *cmd;
 	enum srpt_command_state state;
-	unsigned long flags;
 
 	cmd = &ioctx->cmd;
 	state = srpt_get_cmd_state(ioctx);
@@ -1496,9 +1489,6 @@ static void srpt_handle_rdma_err_comp(struct srpt_rdma_ch *ch,
 			       __func__, __LINE__, state);
 		break;
 	case SRPT_RDMA_WRITE_LAST:
-		spin_lock_irqsave(&ioctx->cmd.t_state_lock, flags);
-		ioctx->cmd.transport_state |= CMD_T_LUN_STOP;
-		spin_unlock_irqrestore(&ioctx->cmd.t_state_lock, flags);
 		break;
 	default:
 		printk(KERN_ERR "%s[%d]: opcode = %u\n", __func__,
diff --git a/drivers/target/target_core_tpg.c b/drivers/target/target_core_tpg.c
index f321af04ef03..f697f8baec54 100644
--- a/drivers/target/target_core_tpg.c
+++ b/drivers/target/target_core_tpg.c
@@ -654,9 +654,7 @@ static int core_tpg_setup_virtual_lun0(struct se_portal_group *se_tpg)
 	atomic_set(&lun->lun_acl_count, 0);
 	init_completion(&lun->lun_shutdown_comp);
 	INIT_LIST_HEAD(&lun->lun_acl_list);
-	INIT_LIST_HEAD(&lun->lun_cmd_list);
 	spin_lock_init(&lun->lun_acl_lock);
-	spin_lock_init(&lun->lun_cmd_lock);
 	spin_lock_init(&lun->lun_sep_lock);
 	init_completion(&lun->lun_ref_comp);
 
@@ -706,9 +704,7 @@ int core_tpg_register(
 		atomic_set(&lun->lun_acl_count, 0);
 		init_completion(&lun->lun_shutdown_comp);
 		INIT_LIST_HEAD(&lun->lun_acl_list);
-		INIT_LIST_HEAD(&lun->lun_cmd_list);
 		spin_lock_init(&lun->lun_acl_lock);
-		spin_lock_init(&lun->lun_cmd_lock);
 		spin_lock_init(&lun->lun_sep_lock);
 		init_completion(&lun->lun_ref_comp);
 	}
@@ -849,14 +845,6 @@ int core_tpg_post_addlun(
 	return 0;
 }
 
-static void core_tpg_shutdown_lun(
-	struct se_portal_group *tpg,
-	struct se_lun *lun)
-{
-	core_clear_lun_from_tpg(lun, tpg);
-	transport_clear_lun_ref(lun);
-}
-
 struct se_lun *core_tpg_pre_dellun(
 	struct se_portal_group *tpg,
 	u32 unpacked_lun)
@@ -891,7 +879,8 @@ int core_tpg_post_dellun(
 	struct se_portal_group *tpg,
 	struct se_lun *lun)
 {
-	core_tpg_shutdown_lun(tpg, lun);
+	core_clear_lun_from_tpg(lun, tpg);
+	transport_clear_lun_ref(lun);
 
 	core_dev_unexport(lun->lun_se_dev, tpg, lun);
 
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index ad143d7293ec..e0669ac9278b 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -505,23 +505,6 @@ static int transport_cmd_check_stop(struct se_cmd *cmd, bool remove_from_lists,
 	if (write_pending)
 		cmd->t_state = TRANSPORT_WRITE_PENDING;
 
-	/*
-	 * Determine if IOCTL context caller in requesting the stopping of this
-	 * command for LUN shutdown purposes.
-	 */
-	if (cmd->transport_state & CMD_T_LUN_STOP) {
-		pr_debug("%s:%d CMD_T_LUN_STOP for ITT: 0x%08x\n",
-			__func__, __LINE__, cmd->se_tfo->get_task_tag(cmd));
-
-		cmd->transport_state &= ~CMD_T_ACTIVE;
-		if (remove_from_lists)
-			target_remove_from_state_list(cmd);
-		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
-
-		complete(&cmd->transport_lun_stop_comp);
-		return 1;
-	}
-
 	if (remove_from_lists) {
 		target_remove_from_state_list(cmd);
 
@@ -1078,13 +1061,10 @@ void transport_init_se_cmd(
 	int task_attr,
 	unsigned char *sense_buffer)
 {
-	INIT_LIST_HEAD(&cmd->se_lun_node);
 	INIT_LIST_HEAD(&cmd->se_delayed_node);
 	INIT_LIST_HEAD(&cmd->se_qf_node);
 	INIT_LIST_HEAD(&cmd->se_cmd_list);
 	INIT_LIST_HEAD(&cmd->state_list);
-	init_completion(&cmd->transport_lun_fe_stop_comp);
-	init_completion(&cmd->transport_lun_stop_comp);
 	init_completion(&cmd->t_transport_stop_comp);
 	init_completion(&cmd->cmd_wait_comp);
 	init_completion(&cmd->task_stop_comp);
@@ -1705,29 +1685,14 @@ void target_execute_cmd(struct se_cmd *cmd)
 	/*
 	 * If the received CDB has aleady been aborted stop processing it here.
 	 */
-	if (transport_check_aborted_status(cmd, 1)) {
-		complete(&cmd->transport_lun_stop_comp);
+	if (transport_check_aborted_status(cmd, 1))
 		return;
-	}
 
-	/*
-	 * Determine if IOCTL context caller in requesting the stopping of this
-	 * command for LUN shutdown purposes.
-	 */
-	spin_lock_irq(&cmd->t_state_lock);
-	if (cmd->transport_state & CMD_T_LUN_STOP) {
-		pr_debug("%s:%d CMD_T_LUN_STOP for ITT: 0x%08x\n",
-			__func__, __LINE__, cmd->se_tfo->get_task_tag(cmd));
-
-		cmd->transport_state &= ~CMD_T_ACTIVE;
-		spin_unlock_irq(&cmd->t_state_lock);
-		complete(&cmd->transport_lun_stop_comp);
-		return;
-	}
 	/*
 	 * Determine if frontend context caller is requesting the stopping of
 	 * this command for frontend exceptions.
 	 */
+	spin_lock_irq(&cmd->t_state_lock);
 	if (cmd->transport_state & CMD_T_STOP) {
 		pr_debug("%s:%d CMD_T_STOP for ITT: 0x%08x\n",
 			__func__, __LINE__,
@@ -2390,149 +2355,6 @@ void target_wait_for_sess_cmds(struct se_session *se_sess)
 }
 EXPORT_SYMBOL(target_wait_for_sess_cmds);
 
-/*	transport_lun_wait_for_tasks():
- *
- *	Called from ConfigFS context to stop the passed struct se_cmd to allow
- *	an struct se_lun to be successfully shutdown.
- */
-static int transport_lun_wait_for_tasks(struct se_cmd *cmd, struct se_lun *lun)
-{
-	unsigned long flags;
-	int ret = 0;
-
-	/*
-	 * If the frontend has already requested this struct se_cmd to
-	 * be stopped, we can safely ignore this struct se_cmd.
-	 */
-	spin_lock_irqsave(&cmd->t_state_lock, flags);
-	if (cmd->transport_state & CMD_T_STOP) {
-		cmd->transport_state &= ~CMD_T_LUN_STOP;
-
-		pr_debug("ConfigFS ITT[0x%08x] - CMD_T_STOP, skipping\n",
-			 cmd->se_tfo->get_task_tag(cmd));
-		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
-		transport_cmd_check_stop(cmd, false, false);
-		return -EPERM;
-	}
-	cmd->transport_state |= CMD_T_LUN_FE_STOP;
-	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
-
-	// XXX: audit task_flags checks.
-	spin_lock_irqsave(&cmd->t_state_lock, flags);
-	if ((cmd->transport_state & CMD_T_BUSY) &&
-	    (cmd->transport_state & CMD_T_SENT)) {
-		if (!target_stop_cmd(cmd, &flags))
-			ret++;
-	}
-	spin_unlock_irqrestore(&cmd->t_state_lock, flags);
-
-	pr_debug("ConfigFS: cmd: %p stop tasks ret:"
-			" %d\n", cmd, ret);
-	if (!ret) {
-		pr_debug("ConfigFS: ITT[0x%08x] - stopping cmd....\n",
-				cmd->se_tfo->get_task_tag(cmd));
-		wait_for_completion(&cmd->transport_lun_stop_comp);
-		pr_debug("ConfigFS: ITT[0x%08x] - stopped cmd....\n",
-				cmd->se_tfo->get_task_tag(cmd));
-	}
-
-	return 0;
-}
-
-static void __transport_clear_lun_from_sessions(struct se_lun *lun)
-{
-	struct se_cmd *cmd = NULL;
-	unsigned long lun_flags, cmd_flags;
-	/*
-	 * Do exception processing and return CHECK_CONDITION status to the
-	 * Initiator Port.
-	 */
-	spin_lock_irqsave(&lun->lun_cmd_lock, lun_flags);
-	while (!list_empty(&lun->lun_cmd_list)) {
-		cmd = list_first_entry(&lun->lun_cmd_list,
-		       struct se_cmd, se_lun_node);
-		list_del_init(&cmd->se_lun_node);
-
-		spin_lock(&cmd->t_state_lock);
-		pr_debug("SE_LUN[%d] - Setting cmd->transport"
-			"_lun_stop for  ITT: 0x%08x\n",
-			cmd->se_lun->unpacked_lun,
-			cmd->se_tfo->get_task_tag(cmd));
-		cmd->transport_state |= CMD_T_LUN_STOP;
-		spin_unlock(&cmd->t_state_lock);
-
-		spin_unlock_irqrestore(&lun->lun_cmd_lock, lun_flags);
-
-		if (!cmd->se_lun) {
-			pr_err("ITT: 0x%08x, [i,t]_state: %u/%u\n",
-				cmd->se_tfo->get_task_tag(cmd),
-				cmd->se_tfo->get_cmd_state(cmd), cmd->t_state);
-			BUG();
-		}
-		/*
-		 * If the Storage engine still owns the iscsi_cmd_t, determine
-		 * and/or stop its context.
-		 */
-		pr_debug("SE_LUN[%d] - ITT: 0x%08x before transport"
-			"_lun_wait_for_tasks()\n", cmd->se_lun->unpacked_lun,
-			cmd->se_tfo->get_task_tag(cmd));
-
-		if (transport_lun_wait_for_tasks(cmd, cmd->se_lun) < 0) {
-			spin_lock_irqsave(&lun->lun_cmd_lock, lun_flags);
-			continue;
-		}
-
-		pr_debug("SE_LUN[%d] - ITT: 0x%08x after transport_lun"
-			"_wait_for_tasks(): SUCCESS\n",
-			cmd->se_lun->unpacked_lun,
-			cmd->se_tfo->get_task_tag(cmd));
-
-		spin_lock_irqsave(&cmd->t_state_lock, cmd_flags);
-		if (!(cmd->transport_state & CMD_T_DEV_ACTIVE)) {
-			spin_unlock_irqrestore(&cmd->t_state_lock, cmd_flags);
-			goto check_cond;
-		}
-		cmd->transport_state &= ~CMD_T_DEV_ACTIVE;
-		target_remove_from_state_list(cmd);
-		spin_unlock_irqrestore(&cmd->t_state_lock, cmd_flags);
-
-		/*
-		 * The Storage engine stopped this struct se_cmd before it was
-		 * send to the fabric frontend for delivery back to the
-		 * Initiator Node.  Return this SCSI CDB back with an
-		 * CHECK_CONDITION status.
-		 */
-check_cond:
-		transport_send_check_condition_and_sense(cmd,
-				TCM_NON_EXISTENT_LUN, 0);
-		/*
-		 *  If the fabric frontend is waiting for this iscsi_cmd_t to
-		 * be released, notify the waiting thread now that LU has
-		 * finished accessing it.
-		 */
-		spin_lock_irqsave(&cmd->t_state_lock, cmd_flags);
-		if (cmd->transport_state & CMD_T_LUN_FE_STOP) {
-			pr_debug("SE_LUN[%d] - Detected FE stop for"
-				" struct se_cmd: %p ITT: 0x%08x\n",
-				lun->unpacked_lun,
-				cmd, cmd->se_tfo->get_task_tag(cmd));
-
-			spin_unlock_irqrestore(&cmd->t_state_lock,
-					cmd_flags);
-			transport_cmd_check_stop(cmd, false, false);
-			complete(&cmd->transport_lun_fe_stop_comp);
-			spin_lock_irqsave(&lun->lun_cmd_lock, lun_flags);
-			continue;
-		}
-		pr_debug("SE_LUN[%d] - ITT: 0x%08x finished processing\n",
-			lun->unpacked_lun, cmd->se_tfo->get_task_tag(cmd));
-
-		spin_unlock_irqrestore(&cmd->t_state_lock, cmd_flags);
-		spin_lock_irqsave(&lun->lun_cmd_lock, lun_flags);
-	}
-	spin_unlock_irqrestore(&lun->lun_cmd_lock, lun_flags);
-}
-
 static int transport_clear_lun_ref_thread(void *p)
 {
 	struct se_lun *lun = p;
@@ -2583,43 +2405,6 @@ bool transport_wait_for_tasks(struct se_cmd *cmd)
 		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
 		return false;
 	}
-	/*
-	 * If we are already stopped due to an external event (ie: LUN shutdown)
-	 * sleep until the connection can have the passed struct se_cmd back.
-	 * The cmd->transport_lun_stopped_sem will be upped by
-	 * transport_clear_lun_from_sessions() once the ConfigFS context caller
-	 * has completed its operation on the struct se_cmd.
-	 */
-	if (cmd->transport_state & CMD_T_LUN_STOP) {
-		pr_debug("wait_for_tasks: Stopping"
-			" wait_for_completion(&cmd->t_tasktransport_lun_fe"
-			"_stop_comp); for ITT: 0x%08x\n",
-			cmd->se_tfo->get_task_tag(cmd));
-		/*
-		 * There is a special case for WRITES where a FE exception +
-		 * LUN shutdown means ConfigFS context is still sleeping on
-		 * transport_lun_stop_comp in transport_lun_wait_for_tasks().
-		 * We go ahead and up transport_lun_stop_comp just to be sure
-		 * here.
-		 */
-		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
-		complete(&cmd->transport_lun_stop_comp);
-		wait_for_completion(&cmd->transport_lun_fe_stop_comp);
-		spin_lock_irqsave(&cmd->t_state_lock, flags);
-
-		target_remove_from_state_list(cmd);
-		/*
-		 * At this point, the frontend who was the originator of this
-		 * struct se_cmd, now owns the structure and can be released through
-		 * normal means below.
-		 */
-		pr_debug("wait_for_tasks: Stopped"
-			" wait_for_completion(&cmd->t_tasktransport_lun_fe_"
-			"stop_comp); for ITT: 0x%08x\n",
-			cmd->se_tfo->get_task_tag(cmd));
-
-		cmd->transport_state &= ~CMD_T_LUN_STOP;
-	}
 
 	if (!(cmd->transport_state & CMD_T_ACTIVE)) {
 		spin_unlock_irqrestore(&cmd->t_state_lock, flags);
diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c
index 7a870f6add7b..b12fc43b5463 100644
--- a/drivers/target/target_core_xcopy.c
+++ b/drivers/target/target_core_xcopy.c
@@ -574,10 +574,8 @@ static int target_xcopy_init_pt_lun(
 		return -ENOMEM;
 	}
 	init_completion(&pt_cmd->se_lun->lun_shutdown_comp);
-	INIT_LIST_HEAD(&pt_cmd->se_lun->lun_cmd_list);
 	INIT_LIST_HEAD(&pt_cmd->se_lun->lun_acl_list);
 	spin_lock_init(&pt_cmd->se_lun->lun_acl_lock);
-	spin_lock_init(&pt_cmd->se_lun->lun_cmd_lock);
 	spin_lock_init(&pt_cmd->se_lun->lun_sep_lock);
 	init_completion(&pt_cmd->se_lun->lun_ref_comp);
 
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 4d16fd9330a6..1ad0a4240b00 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -443,7 +443,6 @@ struct se_cmd {
 	/* Used for sense data */
 	void			*sense_buffer;
 	struct list_head	se_delayed_node;
-	struct list_head	se_lun_node;
 	struct list_head	se_qf_node;
 	struct se_device      *se_dev;
 	struct se_dev_entry   *se_deve;
@@ -471,15 +470,11 @@ struct se_cmd {
 #define CMD_T_SENT		(1 << 4)
 #define CMD_T_STOP		(1 << 5)
 #define CMD_T_FAILED		(1 << 6)
-#define CMD_T_LUN_STOP		(1 << 7)
-#define CMD_T_LUN_FE_STOP	(1 << 8)
-#define CMD_T_DEV_ACTIVE	(1 << 9)
-#define CMD_T_REQUEST_STOP	(1 << 10)
-#define CMD_T_BUSY		(1 << 11)
+#define CMD_T_DEV_ACTIVE	(1 << 7)
+#define CMD_T_REQUEST_STOP	(1 << 8)
+#define CMD_T_BUSY		(1 << 9)
 	spinlock_t		t_state_lock;
 	struct completion	t_transport_stop_comp;
-	struct completion	transport_lun_fe_stop_comp;
-	struct completion	transport_lun_stop_comp;
 
 	struct work_struct	work;
 
@@ -751,10 +746,8 @@ struct se_lun {
 	u32			unpacked_lun;
 	atomic_t		lun_acl_count;
 	spinlock_t		lun_acl_lock;
-	spinlock_t		lun_cmd_lock;
 	spinlock_t		lun_sep_lock;
 	struct completion	lun_shutdown_comp;
-	struct list_head	lun_cmd_list;
 	struct list_head	lun_acl_list;
 	struct se_device	*lun_se_dev;
 	struct se_port		*lun_sep;
-- 
cgit 


From 528f6f4bf372511ebf6004eed822de8f749b5930 Mon Sep 17 00:00:00 2001
From: Erik Hugne <erik.hugne@ericsson.com>
Date: Wed, 6 Nov 2013 09:28:05 +0100
Subject: tipc: don't reroute message fragments

When a message fragment is received in a broadcast or unicast link,
the reception code will append the fragment payload to a big reassembly
buffer through a call to the function tipc_recv_fragm(). However, after
the return of that call, the logics goes on and passes the fragment
buffer to the function tipc_net_route_msg(), which will simply drop it.
This behavior is a remnant from the now obsolete multi-cluster
functionality, and has no relevance in the current code base.

Although currently harmless, this unnecessary call would be fatal
after applying the next patch in this series, which introduces
a completely new reassembly algorithm. So we change the code to
eliminate the redundant call.

Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/tipc/bcast.c | 6 ++++--
 net/tipc/link.c  | 3 ++-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index 716de1ac6cb5..766a6eb4a88f 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -487,11 +487,13 @@ receive:
 			spin_lock_bh(&bc_lock);
 			bclink_accept_pkt(node, seqno);
 			bcl->stats.recv_fragments++;
-			if (ret > 0)
+			if (ret > 0) {
 				bcl->stats.recv_fragmented++;
+				spin_unlock_bh(&bc_lock);
+				goto receive;
+			}
 			spin_unlock_bh(&bc_lock);
 			tipc_node_unlock(node);
-			tipc_net_route_msg(buf);
 		} else if (msg_user(msg) == NAME_DISTRIBUTOR) {
 			spin_lock_bh(&bc_lock);
 			bclink_accept_pkt(node, seqno);
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 54163f91b8ae..ada8cadf5af8 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1657,7 +1657,8 @@ deliver:
 			}
 			if (ret == -1)
 				l_ptr->next_in_no--;
-			break;
+			tipc_node_unlock(n_ptr);
+			continue;
 		case CHANGEOVER_PROTOCOL:
 			type = msg_type(msg);
 			if (link_recv_changeover_msg(&l_ptr, &buf)) {
-- 
cgit 


From 40ba3cdf542a469aaa9083fa041656e59b109b90 Mon Sep 17 00:00:00 2001
From: Erik Hugne <erik.hugne@ericsson.com>
Date: Wed, 6 Nov 2013 09:28:06 +0100
Subject: tipc: message reassembly using fragment chain

When the first fragment of a long data data message is received on a link, a
reassembly buffer large enough to hold the data from this and all subsequent
fragments of the message is allocated. The payload of each new fragment is
copied into this buffer upon arrival. When the last fragment is received, the
reassembled message is delivered upwards to the port/socket layer.

Not only is this an inefficient approach, but it may also cause bursts of
reassembly failures in low memory situations. since we may fail to allocate
the necessary large buffer in the first place. Furthermore, after 100 subsequent
such failures the link will be reset, something that in reality aggravates the
situation.

To remedy this problem, this patch introduces a different approach. Instead of
allocating a big reassembly buffer, we now append the arriving fragments
to a reassembly chain on the link, and deliver the whole chain up to the
socket layer once the last fragment has been received. This is safe because
the retransmission layer of a TIPC link always delivers packets in strict
uninterrupted order, to the reassembly layer as to all other upper layers.
Hence there can never be more than one fragment chain pending reassembly at
any given time in a link, and we can trust (but still verify) that the
fragments will be chained up in the correct order.

Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/tipc/bcast.c |  12 +++--
 net/tipc/link.c  | 159 +++++++++++++++----------------------------------------
 net/tipc/link.h  |  20 ++++---
 net/tipc/msg.h   |  12 -----
 net/tipc/node.c  |   7 +--
 net/tipc/node.h  |   6 ++-
 6 files changed, 74 insertions(+), 142 deletions(-)

diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index 766a6eb4a88f..0d4402587fdf 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -480,15 +480,19 @@ receive:
 			tipc_node_unlock(node);
 			tipc_link_recv_bundle(buf);
 		} else if (msg_user(msg) == MSG_FRAGMENTER) {
-			int ret = tipc_link_recv_fragment(&node->bclink.defragm,
-						      &buf, &msg);
-			if (ret < 0)
+			int ret;
+			ret = tipc_link_recv_fragment(&node->bclink.reasm_head,
+						      &node->bclink.reasm_tail,
+						      &buf);
+			if (ret == LINK_REASM_ERROR)
 				goto unlock;
 			spin_lock_bh(&bc_lock);
 			bclink_accept_pkt(node, seqno);
 			bcl->stats.recv_fragments++;
-			if (ret > 0) {
+			if (ret == LINK_REASM_COMPLETE) {
 				bcl->stats.recv_fragmented++;
+				/* Point msg to inner header */
+				msg = buf_msg(buf);
 				spin_unlock_bh(&bc_lock);
 				goto receive;
 			}
diff --git a/net/tipc/link.c b/net/tipc/link.c
index ada8cadf5af8..a63646e6c2cf 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -404,15 +404,9 @@ static void link_release_outqueue(struct tipc_link *l_ptr)
  */
 void tipc_link_reset_fragments(struct tipc_link *l_ptr)
 {
-	struct sk_buff *buf = l_ptr->defragm_buf;
-	struct sk_buff *next;
-
-	while (buf) {
-		next = buf->next;
-		kfree_skb(buf);
-		buf = next;
-	}
-	l_ptr->defragm_buf = NULL;
+	kfree_skb(l_ptr->reasm_head);
+	l_ptr->reasm_head = NULL;
+	l_ptr->reasm_tail = NULL;
 }
 
 /**
@@ -1649,13 +1643,15 @@ deliver:
 			continue;
 		case MSG_FRAGMENTER:
 			l_ptr->stats.recv_fragments++;
-			ret = tipc_link_recv_fragment(&l_ptr->defragm_buf,
-						      &buf, &msg);
-			if (ret == 1) {
+			ret = tipc_link_recv_fragment(&l_ptr->reasm_head,
+						      &l_ptr->reasm_tail,
+						      &buf);
+			if (ret == LINK_REASM_COMPLETE) {
 				l_ptr->stats.recv_fragmented++;
+				msg = buf_msg(buf);
 				goto deliver;
 			}
-			if (ret == -1)
+			if (ret == LINK_REASM_ERROR)
 				l_ptr->next_in_no--;
 			tipc_node_unlock(n_ptr);
 			continue;
@@ -2342,115 +2338,48 @@ static int link_send_long_buf(struct tipc_link *l_ptr, struct sk_buff *buf)
 	return dsz;
 }
 
-/*
- * A pending message being re-assembled must store certain values
- * to handle subsequent fragments correctly. The following functions
- * help storing these values in unused, available fields in the
- * pending message. This makes dynamic memory allocation unnecessary.
- */
-static void set_long_msg_seqno(struct sk_buff *buf, u32 seqno)
-{
-	msg_set_seqno(buf_msg(buf), seqno);
-}
-
-static u32 get_fragm_size(struct sk_buff *buf)
-{
-	return msg_ack(buf_msg(buf));
-}
-
-static void set_fragm_size(struct sk_buff *buf, u32 sz)
-{
-	msg_set_ack(buf_msg(buf), sz);
-}
-
-static u32 get_expected_frags(struct sk_buff *buf)
-{
-	return msg_bcast_ack(buf_msg(buf));
-}
-
-static void set_expected_frags(struct sk_buff *buf, u32 exp)
-{
-	msg_set_bcast_ack(buf_msg(buf), exp);
-}
-
 /*
  * tipc_link_recv_fragment(): Called with node lock on. Returns
  * the reassembled buffer if message is complete.
  */
-int tipc_link_recv_fragment(struct sk_buff **pending, struct sk_buff **fb,
-			    struct tipc_msg **m)
-{
-	struct sk_buff *prev = NULL;
-	struct sk_buff *fbuf = *fb;
-	struct tipc_msg *fragm = buf_msg(fbuf);
-	struct sk_buff *pbuf = *pending;
-	u32 long_msg_seq_no = msg_long_msgno(fragm);
-
-	*fb = NULL;
-
-	/* Is there an incomplete message waiting for this fragment? */
-	while (pbuf && ((buf_seqno(pbuf) != long_msg_seq_no) ||
-			(msg_orignode(fragm) != msg_orignode(buf_msg(pbuf))))) {
-		prev = pbuf;
-		pbuf = pbuf->next;
-	}
-
-	if (!pbuf && (msg_type(fragm) == FIRST_FRAGMENT)) {
-		struct tipc_msg *imsg = (struct tipc_msg *)msg_data(fragm);
-		u32 msg_sz = msg_size(imsg);
-		u32 fragm_sz = msg_data_sz(fragm);
-		u32 exp_fragm_cnt;
-		u32 max =  TIPC_MAX_USER_MSG_SIZE + NAMED_H_SIZE;
-
-		if (msg_type(imsg) == TIPC_MCAST_MSG)
-			max = TIPC_MAX_USER_MSG_SIZE + MCAST_H_SIZE;
-		if (fragm_sz == 0 || msg_size(imsg) > max) {
-			kfree_skb(fbuf);
-			return 0;
-		}
-		exp_fragm_cnt = msg_sz / fragm_sz + !!(msg_sz % fragm_sz);
-		pbuf = tipc_buf_acquire(msg_size(imsg));
-		if (pbuf != NULL) {
-			pbuf->next = *pending;
-			*pending = pbuf;
-			skb_copy_to_linear_data(pbuf, imsg,
-						msg_data_sz(fragm));
-			/*  Prepare buffer for subsequent fragments. */
-			set_long_msg_seqno(pbuf, long_msg_seq_no);
-			set_fragm_size(pbuf, fragm_sz);
-			set_expected_frags(pbuf, exp_fragm_cnt - 1);
-		} else {
-			pr_debug("Link unable to reassemble fragmented message\n");
-			kfree_skb(fbuf);
-			return -1;
-		}
-		kfree_skb(fbuf);
-		return 0;
-	} else if (pbuf && (msg_type(fragm) != FIRST_FRAGMENT)) {
-		u32 dsz = msg_data_sz(fragm);
-		u32 fsz = get_fragm_size(pbuf);
-		u32 crs = ((msg_fragm_no(fragm) - 1) * fsz);
-		u32 exp_frags = get_expected_frags(pbuf) - 1;
-		skb_copy_to_linear_data_offset(pbuf, crs,
-					       msg_data(fragm), dsz);
-		kfree_skb(fbuf);
-
-		/* Is message complete? */
-		if (exp_frags == 0) {
-			if (prev)
-				prev->next = pbuf->next;
-			else
-				*pending = pbuf->next;
-			msg_reset_reroute_cnt(buf_msg(pbuf));
-			*fb = pbuf;
-			*m = buf_msg(pbuf);
-			return 1;
-		}
-		set_expected_frags(pbuf, exp_frags);
+int tipc_link_recv_fragment(struct sk_buff **head, struct sk_buff **tail,
+			    struct sk_buff **fbuf)
+{
+	struct sk_buff *frag = *fbuf;
+	struct tipc_msg *msg = buf_msg(frag);
+	u32 fragid = msg_type(msg);
+	bool headstolen;
+	int delta;
+
+	skb_pull(frag, msg_hdr_sz(msg));
+	if (fragid == FIRST_FRAGMENT) {
+		if (*head || skb_unclone(frag, GFP_ATOMIC))
+			goto out_free;
+		*head = frag;
+		skb_frag_list_init(*head);
 		return 0;
+	} else if (skb_try_coalesce(*head, frag, &headstolen, &delta)) {
+		kfree_skb_partial(frag, headstolen);
+	} else {
+		if (!*head)
+			goto out_free;
+		if (!skb_has_frag_list(*head))
+			skb_shinfo(*head)->frag_list = frag;
+		else
+			(*tail)->next = frag;
+		*tail = frag;
+		(*head)->truesize += frag->truesize;
+	}
+	if (fragid == LAST_FRAGMENT) {
+		*fbuf = *head;
+		*tail = *head = NULL;
+		return LINK_REASM_COMPLETE;
 	}
-	kfree_skb(fbuf);
 	return 0;
+out_free:
+	pr_warn_ratelimited("Link unable to reassemble fragmented message\n");
+	kfree_skb(*fbuf);
+	return LINK_REASM_ERROR;
 }
 
 static void link_set_supervision_props(struct tipc_link *l_ptr, u32 tolerance)
diff --git a/net/tipc/link.h b/net/tipc/link.h
index 55cf8554a08b..8a6c1026644d 100644
--- a/net/tipc/link.h
+++ b/net/tipc/link.h
@@ -40,6 +40,12 @@
 #include "msg.h"
 #include "node.h"
 
+/*
+ * Link reassembly status codes
+ */
+#define LINK_REASM_ERROR	-1
+#define LINK_REASM_COMPLETE	1
+
 /*
  * Out-of-range value for link sequence numbers
  */
@@ -134,7 +140,8 @@ struct tipc_stats {
  * @next_out: ptr to first unsent outbound message in queue
  * @waiting_ports: linked list of ports waiting for link congestion to abate
  * @long_msg_seq_no: next identifier to use for outbound fragmented messages
- * @defragm_buf: list of partially reassembled inbound message fragments
+ * @reasm_head: list head of partially reassembled inbound message fragments
+ * @reasm_tail: last fragment received
  * @stats: collects statistics regarding link activity
  */
 struct tipc_link {
@@ -196,9 +203,10 @@ struct tipc_link {
 	struct sk_buff *next_out;
 	struct list_head waiting_ports;
 
-	/* Fragmentation/defragmentation */
+	/* Fragmentation/reassembly */
 	u32 long_msg_seq_no;
-	struct sk_buff *defragm_buf;
+	struct sk_buff *reasm_head;
+	struct sk_buff *reasm_tail;
 
 	/* Statistics */
 	struct tipc_stats stats;
@@ -229,9 +237,9 @@ int tipc_link_send_sections_fast(struct tipc_port *sender,
 				 struct iovec const *msg_sect,
 				 unsigned int len, u32 destnode);
 void tipc_link_recv_bundle(struct sk_buff *buf);
-int  tipc_link_recv_fragment(struct sk_buff **pending,
-			     struct sk_buff **fb,
-			     struct tipc_msg **msg);
+int  tipc_link_recv_fragment(struct sk_buff **reasm_head,
+			     struct sk_buff **reasm_tail,
+			     struct sk_buff **fbuf);
 void tipc_link_send_proto_msg(struct tipc_link *l_ptr, u32 msg_typ, int prob,
 			      u32 gap, u32 tolerance, u32 priority,
 			      u32 acked_mtu);
diff --git a/net/tipc/msg.h b/net/tipc/msg.h
index 559b73a9bf35..76d1269b9443 100644
--- a/net/tipc/msg.h
+++ b/net/tipc/msg.h
@@ -554,12 +554,6 @@ static inline void msg_set_last_bcast(struct tipc_msg *m, u32 n)
 	msg_set_bits(m, 4, 16, 0xffff, n);
 }
 
-
-static inline u32 msg_fragm_no(struct tipc_msg *m)
-{
-	return msg_bits(m, 4, 16, 0xffff);
-}
-
 static inline void msg_set_fragm_no(struct tipc_msg *m, u32 n)
 {
 	msg_set_bits(m, 4, 16, 0xffff, n);
@@ -576,12 +570,6 @@ static inline void msg_set_next_sent(struct tipc_msg *m, u32 n)
 	msg_set_bits(m, 4, 0, 0xffff, n);
 }
 
-
-static inline u32 msg_long_msgno(struct tipc_msg *m)
-{
-	return msg_bits(m, 4, 0, 0xffff);
-}
-
 static inline void msg_set_long_msgno(struct tipc_msg *m, u32 n)
 {
 	msg_set_bits(m, 4, 0, 0xffff, n);
diff --git a/net/tipc/node.c b/net/tipc/node.c
index 6e6c434872e8..25100c0a6fe8 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -298,9 +298,10 @@ static void node_lost_contact(struct tipc_node *n_ptr)
 		}
 		n_ptr->bclink.deferred_size = 0;
 
-		if (n_ptr->bclink.defragm) {
-			kfree_skb(n_ptr->bclink.defragm);
-			n_ptr->bclink.defragm = NULL;
+		if (n_ptr->bclink.reasm_head) {
+			kfree_skb(n_ptr->bclink.reasm_head);
+			n_ptr->bclink.reasm_head = NULL;
+			n_ptr->bclink.reasm_tail = NULL;
 		}
 
 		tipc_bclink_remove_node(n_ptr->addr);
diff --git a/net/tipc/node.h b/net/tipc/node.h
index 3c189b35b102..e5e96c04e167 100644
--- a/net/tipc/node.h
+++ b/net/tipc/node.h
@@ -74,7 +74,8 @@
  *    @deferred_size: number of OOS b'cast messages in deferred queue
  *    @deferred_head: oldest OOS b'cast message received from node
  *    @deferred_tail: newest OOS b'cast message received from node
- *    @defragm: list of partially reassembled b'cast message fragments from node
+ *    @reasm_head: broadcast reassembly queue head from node
+ *    @reasm_tail: last broadcast fragment received from node
  *    @recv_permitted: true if node is allowed to receive b'cast messages
  */
 struct tipc_node {
@@ -98,7 +99,8 @@ struct tipc_node {
 		u32 deferred_size;
 		struct sk_buff *deferred_head;
 		struct sk_buff *deferred_tail;
-		struct sk_buff *defragm;
+		struct sk_buff *reasm_head;
+		struct sk_buff *reasm_tail;
 		bool recv_permitted;
 	} bclink;
 };
-- 
cgit 


From a715b49e79b0924863ff1424f9823cc1b5972322 Mon Sep 17 00:00:00 2001
From: Erik Hugne <erik.hugne@ericsson.com>
Date: Wed, 6 Nov 2013 09:28:07 +0100
Subject: tipc: reassembly failures should cause link reset

If appending a received fragment to the pending fragment chain
in a unicast link fails, the current code tries to force a retransmission
of the fragment by decrementing the 'next received sequence number'
field in the link. This is done under the assumption that the failure
is caused by an out-of-memory situation, an assumption that does
not hold true after the previous patch in this series.

A failure to append a fragment can now only be caused by a protocol
violation by the sending peer, and it must hence be assumed that it
is either malicious or buggy.  Either way, the correct behavior is now
to reset the link instead of trying to revert its sequence number.
So, this is what we do in this commit.

Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/tipc/link.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/tipc/link.c b/net/tipc/link.c
index a63646e6c2cf..cf465d66ccde 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1652,7 +1652,7 @@ deliver:
 				goto deliver;
 			}
 			if (ret == LINK_REASM_ERROR)
-				l_ptr->next_in_no--;
+				tipc_link_reset(l_ptr);
 			tipc_node_unlock(n_ptr);
 			continue;
 		case CHANGEOVER_PROTOCOL:
-- 
cgit 


From 98bbc06aabac5a2dcc46580d20c59baf8ebe479f Mon Sep 17 00:00:00 2001
From: Andrey Vagin <avagin@openvz.org>
Date: Thu, 7 Nov 2013 08:35:12 +0400
Subject: net: x86: bpf: don't forget to free sk_filter (v2)

sk_filter isn't freed if bpf_func is equal to sk_run_filter.

This memory leak was introduced by v3.12-rc3-224-gd45ed4a4
"net: fix unsafe set_memory_rw from softirq".

Before this patch sk_filter was freed in sk_filter_release_rcu,
now it should be freed in bpf_jit_free.

Here is output of kmemleak:
unreferenced object 0xffff8800b774eab0 (size 128):
  comm "systemd", pid 1, jiffies 4294669014 (age 124.062s)
  hex dump (first 32 bytes):
    00 00 00 00 0b 00 00 00 20 63 7f b7 00 88 ff ff  ........ c......
    60 d4 55 81 ff ff ff ff 30 d9 55 81 ff ff ff ff  `.U.....0.U.....
  backtrace:
    [<ffffffff816444be>] kmemleak_alloc+0x4e/0xb0
    [<ffffffff811845af>] __kmalloc+0xef/0x260
    [<ffffffff81534028>] sock_kmalloc+0x38/0x60
    [<ffffffff8155d4dd>] sk_attach_filter+0x5d/0x190
    [<ffffffff815378a1>] sock_setsockopt+0x991/0x9e0
    [<ffffffff81531bd6>] SyS_setsockopt+0xb6/0xd0
    [<ffffffff8165f3e9>] system_call_fastpath+0x16/0x1b
    [<ffffffffffffffff>] 0xffffffffffffffff

v2: add extra { } after else

Fixes: d45ed4a4e33a ("net: fix unsafe set_memory_rw from softirq")
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/x86/net/bpf_jit_comp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/x86/net/bpf_jit_comp.c b/arch/x86/net/bpf_jit_comp.c
index 516593e1ce33..26328e800869 100644
--- a/arch/x86/net/bpf_jit_comp.c
+++ b/arch/x86/net/bpf_jit_comp.c
@@ -788,5 +788,7 @@ void bpf_jit_free(struct sk_filter *fp)
 	if (fp->bpf_func != sk_run_filter) {
 		INIT_WORK(&fp->work, bpf_jit_free_deferred);
 		schedule_work(&fp->work);
+	} else {
+		kfree(fp);
 	}
 }
-- 
cgit 


From 28fb96552472d8ef6197f6dc4c768cf8a64c570d Mon Sep 17 00:00:00 2001
From: Eilon Greenstein <eilong@broadcom.com>
Date: Wed, 6 Nov 2013 11:51:32 +0200
Subject: MAINTAINERS: Update bnx2x maintainer

Ariel Elior will take over the bnx2x maintenance.

It's been a pleasure!

Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Acked-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 MAINTAINERS | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 727d7e359182..3e1014b87e01 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1822,7 +1822,7 @@ F:	drivers/net/ethernet/broadcom/bnx2.*
 F:	drivers/net/ethernet/broadcom/bnx2_*
 
 BROADCOM BNX2X 10 GIGABIT ETHERNET DRIVER
-M:	Eilon Greenstein <eilong@broadcom.com>
+M:	Ariel Elior <ariele@broadcom.com>
 L:	netdev@vger.kernel.org
 S:	Supported
 F:	drivers/net/ethernet/broadcom/bnx2x/
-- 
cgit 


From 85aec73d595b8847f9c4ea571deb127913f0d508 Mon Sep 17 00:00:00 2001
From: Ivan Vecera <ivecera@redhat.com>
Date: Wed, 6 Nov 2013 14:02:36 +0100
Subject: tg3: avoid double-freeing of rx data memory

If build_skb fails the memory associated with the ring buffer is freed but
the ri->data member is not zeroed in this case. This causes a double-free
of this memory in tg3_free_rings->... path. The patch moves this block after
setting ri->data to NULL.
It would be nice to fix this bug also in stable >= v3.4 trees.

Cc: Nithin Nayak Sujir <nsujir@broadcom.com>
Cc: Michael Chan <mchan@broadcom.com>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Acked-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/tg3.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 819d87c281bf..00c5be8c55b8 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -6862,12 +6862,6 @@ static int tg3_rx(struct tg3_napi *tnapi, int budget)
 			pci_unmap_single(tp->pdev, dma_addr, skb_size,
 					 PCI_DMA_FROMDEVICE);
 
-			skb = build_skb(data, frag_size);
-			if (!skb) {
-				tg3_frag_free(frag_size != 0, data);
-				goto drop_it_no_recycle;
-			}
-			skb_reserve(skb, TG3_RX_OFFSET(tp));
 			/* Ensure that the update to the data happens
 			 * after the usage of the old DMA mapping.
 			 */
@@ -6875,6 +6869,12 @@ static int tg3_rx(struct tg3_napi *tnapi, int budget)
 
 			ri->data = NULL;
 
+			skb = build_skb(data, frag_size);
+			if (!skb) {
+				tg3_frag_free(frag_size != 0, data);
+				goto drop_it_no_recycle;
+			}
+			skb_reserve(skb, TG3_RX_OFFSET(tp));
 		} else {
 			tg3_recycle_rx(tnapi, tpr, opaque_key,
 				       desc_idx, *post_ptr);
-- 
cgit 


From d32435391974e39c35ade4d115f17c538a96a708 Mon Sep 17 00:00:00 2001
From: Eyal Perry <eyalpe@mellanox.com>
Date: Wed, 6 Nov 2013 15:37:23 +0200
Subject: net/vlan: Provide read access to the vlan egress map

Provide a method for read-only access to the vlan device egress mapping.

Do this by refactoring vlan_dev_get_egress_qos_mask() such that now it
receives as an argument the skb priority instead of pointer to the skb.

Such an access is needed for the IBoE stack where the control plane
goes through the network stack. This is an add-on step on top of commit
d4a968658c "net/route: export symbol ip_tos2prio" which allowed the RDMA-CM
to use ip_tos2prio.

Signed-off-by: Eyal Perry <eyalpe@mellanox.com>
Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/if_vlan.h |  9 ++++++++-
 net/8021q/vlan_dev.c    | 18 ++++++++++++------
 2 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index 715c343f7c00..f3088a0112cf 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -88,7 +88,8 @@ extern struct net_device *__vlan_find_dev_deep(struct net_device *real_dev,
 					       __be16 vlan_proto, u16 vlan_id);
 extern struct net_device *vlan_dev_real_dev(const struct net_device *dev);
 extern u16 vlan_dev_vlan_id(const struct net_device *dev);
-
+extern u16 vlan_dev_get_egress_qos_mask(struct net_device *dev,
+					u32 skprio);
 extern bool vlan_do_receive(struct sk_buff **skb);
 extern struct sk_buff *vlan_untag(struct sk_buff *skb);
 
@@ -121,6 +122,12 @@ static inline u16 vlan_dev_vlan_id(const struct net_device *dev)
 	return 0;
 }
 
+static inline u16 vlan_dev_get_egress_qos_mask(struct net_device *dev,
+					       u32 skprio)
+{
+	return 0;
+}
+
 static inline bool vlan_do_receive(struct sk_buff **skb)
 {
 	return false;
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 09bf1c38805b..13904a414929 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -69,15 +69,15 @@ static int vlan_dev_rebuild_header(struct sk_buff *skb)
 }
 
 static inline u16
-vlan_dev_get_egress_qos_mask(struct net_device *dev, struct sk_buff *skb)
+__vlan_dev_get_egress_qos_mask(struct net_device *dev, u32 skprio)
 {
 	struct vlan_priority_tci_mapping *mp;
 
 	smp_rmb(); /* coupled with smp_wmb() in vlan_dev_set_egress_priority() */
 
-	mp = vlan_dev_priv(dev)->egress_priority_map[(skb->priority & 0xF)];
+	mp = vlan_dev_priv(dev)->egress_priority_map[(skprio & 0xF)];
 	while (mp) {
-		if (mp->priority == skb->priority) {
+		if (mp->priority == skprio) {
 			return mp->vlan_qos; /* This should already be shifted
 					      * to mask correctly with the
 					      * VLAN's TCI */
@@ -87,6 +87,12 @@ vlan_dev_get_egress_qos_mask(struct net_device *dev, struct sk_buff *skb)
 	return 0;
 }
 
+u16 vlan_dev_get_egress_qos_mask(struct net_device *dev, u32 skprio)
+{
+	return __vlan_dev_get_egress_qos_mask(dev, skprio);
+}
+EXPORT_SYMBOL(vlan_dev_get_egress_qos_mask);
+
 /*
  *	Create the VLAN header for an arbitrary protocol layer
  *
@@ -111,7 +117,7 @@ static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
 		vhdr = (struct vlan_hdr *) skb_push(skb, VLAN_HLEN);
 
 		vlan_tci = vlan->vlan_id;
-		vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb);
+		vlan_tci |= __vlan_dev_get_egress_qos_mask(dev, skb->priority);
 		vhdr->h_vlan_TCI = htons(vlan_tci);
 
 		/*
@@ -168,7 +174,7 @@ static netdev_tx_t vlan_dev_hard_start_xmit(struct sk_buff *skb,
 	    vlan->flags & VLAN_FLAG_REORDER_HDR) {
 		u16 vlan_tci;
 		vlan_tci = vlan->vlan_id;
-		vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb);
+		vlan_tci |= __vlan_dev_get_egress_qos_mask(dev, skb->priority);
 		skb = __vlan_hwaccel_put_tag(skb, vlan->vlan_proto, vlan_tci);
 	}
 
@@ -253,7 +259,7 @@ int vlan_dev_set_egress_priority(const struct net_device *dev,
 	np->vlan_qos = vlan_qos;
 	/* Before inserting this element in hash table, make sure all its fields
 	 * are committed to memory.
-	 * coupled with smp_rmb() in vlan_dev_get_egress_qos_mask()
+	 * coupled with smp_rmb() in __vlan_dev_get_egress_qos_mask()
 	 */
 	smp_wmb();
 	vlan->egress_priority_map[skb_prio & 0xF] = np;
-- 
cgit 


From eb072c4b8da0ba87bc870c7911aae180bae34d4a Mon Sep 17 00:00:00 2001
From: Eyal Perry <eyalpe@mellanox.com>
Date: Wed, 6 Nov 2013 15:37:24 +0200
Subject: RDMA/cma: Set IBoE SL (user-priority) by egress map when using vlans

On top of commit 366cddb40 "IB/rdma_cm: TOS <=> UP mapping for IBoE", add
support for case vlan egress map is used.

When the IBoE session is being set over a vlan, inherit the socket priority
to vlan priority mapping which was configured for the vlan device egress map.

Signed-off-by: Eyal Perry <eyalpe@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/infiniband/core/cma.c | 26 +++++++++++++++++++++-----
 1 file changed, 21 insertions(+), 5 deletions(-)

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index a082fd9e7ebe..d2172e71f985 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -1848,6 +1848,26 @@ static int cma_resolve_iw_route(struct rdma_id_private *id_priv, int timeout_ms)
 	return 0;
 }
 
+static int iboe_tos_to_sl(struct net_device *ndev, int tos)
+{
+	int prio;
+	struct net_device *dev;
+
+	prio = rt_tos2priority(tos);
+	dev = ndev->priv_flags & IFF_802_1Q_VLAN ?
+		vlan_dev_real_dev(ndev) : ndev;
+
+	if (dev->num_tc)
+		return netdev_get_prio_tc_map(dev, prio);
+
+#if IS_ENABLED(CONFIG_VLAN_8021Q)
+	if (ndev->priv_flags & IFF_802_1Q_VLAN)
+		return (vlan_dev_get_egress_qos_mask(ndev, prio) &
+			VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
+#endif
+	return 0;
+}
+
 static int cma_resolve_iboe_route(struct rdma_id_private *id_priv)
 {
 	struct rdma_route *route = &id_priv->id.route;
@@ -1888,11 +1908,7 @@ static int cma_resolve_iboe_route(struct rdma_id_private *id_priv)
 	route->path_rec->reversible = 1;
 	route->path_rec->pkey = cpu_to_be16(0xffff);
 	route->path_rec->mtu_selector = IB_SA_EQ;
-	route->path_rec->sl = netdev_get_prio_tc_map(
-			ndev->priv_flags & IFF_802_1Q_VLAN ?
-				vlan_dev_real_dev(ndev) : ndev,
-			rt_tos2priority(id_priv->tos));
-
+	route->path_rec->sl = iboe_tos_to_sl(ndev, id_priv->tos);
 	route->path_rec->mtu = iboe_get_mtu(ndev->mtu);
 	route->path_rec->rate_selector = IB_SA_EQ;
 	route->path_rec->rate = iboe_get_rate(ndev);
-- 
cgit 


From 78032f9b3eae3a43da9468d8ce30caa6be84f89d Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 7 Nov 2013 10:44:45 +0300
Subject: 6lowpan: release device on error path

We recently added a new error path and it needs a dev_put().

Fixes: 7adac1ec8198 ('6lowpan: Only make 6lowpan links to IEEE802154 devices')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ieee802154/6lowpan.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index 9497c6f3276b..426b5df1c98f 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -1358,8 +1358,10 @@ static int lowpan_newlink(struct net *src_net, struct net_device *dev,
 	real_dev = dev_get_by_index(src_net, nla_get_u32(tb[IFLA_LINK]));
 	if (!real_dev)
 		return -ENODEV;
-	if (real_dev->type != ARPHRD_IEEE802154)
+	if (real_dev->type != ARPHRD_IEEE802154) {
+		dev_put(real_dev);
 		return -EINVAL;
+	}
 
 	lowpan_dev_info(dev)->real_dev = real_dev;
 	lowpan_dev_info(dev)->fragment_tag = 0;
-- 
cgit 


From df42153c59a38a65c6f7440d5c70d87d1c24438d Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 7 Nov 2013 10:48:49 +0300
Subject: net: make ndev->irq signed for error handling

There is a bug in cpsw_probe() where we do:

	ndev->irq = platform_get_irq(pdev, 0);
	if (ndev->irq < 0) {

The problem is that "ndev->irq" is unsigned so the error handling
doesn't work.  I have changed it to a regular int.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/netdevice.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index e6353cafbf05..b6f6efbcfc74 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1132,7 +1132,7 @@ struct net_device {
 	unsigned long		mem_end;	/* shared mem end	*/
 	unsigned long		mem_start;	/* shared mem start	*/
 	unsigned long		base_addr;	/* device I/O address	*/
-	unsigned int		irq;		/* device IRQ number	*/
+	int			irq;		/* device IRQ number	*/
 
 	/*
 	 *	Some hardware also needs these fields, but they are not
-- 
cgit 


From 5600090eb138e302636dea7d44c63e3d7c890725 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 7 Nov 2013 10:58:06 +0300
Subject: isdn: icn: NULL dereference printing error message

"card2" is NULL here so I have changed it to use "id2" instead of
"card2->interface.id".

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/isdn/icn/icn.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/isdn/icn/icn.c b/drivers/isdn/icn/icn.c
index e74df7c4658f..53d487f0c79d 100644
--- a/drivers/isdn/icn/icn.c
+++ b/drivers/isdn/icn/icn.c
@@ -1580,8 +1580,7 @@ icn_addcard(int port, char *id1, char *id2)
 	}
 	if (!(card2 = icn_initcard(port, id2))) {
 		printk(KERN_INFO
-		       "icn: (%s) half ICN-4B, port 0x%x added\n",
-		       card2->interface.id, port);
+		       "icn: (%s) half ICN-4B, port 0x%x added\n", id2, port);
 		return 0;
 	}
 	card->doubleS0 = 1;
-- 
cgit 


From 1ec4864b10171b0691ee196d7006ae56d2c153f2 Mon Sep 17 00:00:00 2001
From: Amir Vadai <amirv@mellanox.com>
Date: Thu, 7 Nov 2013 11:08:30 +0200
Subject: net/mlx4_en: Fixed crash when port type is changed

timecounter_init() was was called only after first potential
timecounter_read().
Moved mlx4_en_init_timestamp() before mlx4_en_init_netdev()

Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/en_main.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_main.c b/drivers/net/ethernet/mellanox/mlx4/en_main.c
index a071cda2dd04..0d087b03a7b0 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_main.c
@@ -264,6 +264,10 @@ static void *mlx4_en_add(struct mlx4_dev *dev)
 	mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH)
 		mdev->port_cnt++;
 
+	/* Initialize time stamp mechanism */
+	if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)
+		mlx4_en_init_timestamp(mdev);
+
 	mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_ETH) {
 		if (!dev->caps.comp_pool) {
 			mdev->profile.prof[i].rx_ring_num =
@@ -301,10 +305,6 @@ static void *mlx4_en_add(struct mlx4_dev *dev)
 			mdev->pndev[i] = NULL;
 	}
 
-	/* Initialize time stamp mechanism */
-	if (mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_TS)
-		mlx4_en_init_timestamp(mdev);
-
 	return mdev;
 
 err_mr:
-- 
cgit 


From a6cc0cfa72e0b6d9f2c8fd858aacc32313c4f272 Mon Sep 17 00:00:00 2001
From: John Fastabend <john.r.fastabend@intel.com>
Date: Wed, 6 Nov 2013 09:54:46 -0800
Subject: net: Add layer 2 hardware acceleration operations for macvlan devices

Add a operations structure that allows a network interface to export
the fact that it supports package forwarding in hardware between
physical interfaces and other mac layer devices assigned to it (such
as macvlans). This operaions structure can be used by virtual mac
devices to bypass software switching so that forwarding can be done
in hardware more efficiently.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/macvlan.c           | 36 +++++++++++++++++++++++++++++++++++-
 include/linux/if_macvlan.h      |  1 +
 include/linux/netdev_features.h |  2 ++
 include/linux/netdevice.h       | 36 +++++++++++++++++++++++++++++++++++-
 include/uapi/linux/if.h         |  1 +
 net/core/dev.c                  | 18 +++++++++++++-----
 net/core/ethtool.c              |  1 +
 net/sched/sch_generic.c         |  2 +-
 8 files changed, 89 insertions(+), 8 deletions(-)

diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index cc9845ec91c1..af4aaa5893ff 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -297,7 +297,13 @@ netdev_tx_t macvlan_start_xmit(struct sk_buff *skb,
 	int ret;
 	const struct macvlan_dev *vlan = netdev_priv(dev);
 
-	ret = macvlan_queue_xmit(skb, dev);
+	if (vlan->fwd_priv) {
+		skb->dev = vlan->lowerdev;
+		ret = dev_hard_start_xmit(skb, skb->dev, NULL, vlan->fwd_priv);
+	} else {
+		ret = macvlan_queue_xmit(skb, dev);
+	}
+
 	if (likely(ret == NET_XMIT_SUCCESS || ret == NET_XMIT_CN)) {
 		struct macvlan_pcpu_stats *pcpu_stats;
 
@@ -347,6 +353,21 @@ static int macvlan_open(struct net_device *dev)
 		goto hash_add;
 	}
 
+	if (lowerdev->features & NETIF_F_HW_L2FW_DOFFLOAD) {
+		vlan->fwd_priv =
+		      lowerdev->netdev_ops->ndo_dfwd_add_station(lowerdev, dev);
+
+		/* If we get a NULL pointer back, or if we get an error
+		 * then we should just fall through to the non accelerated path
+		 */
+		if (IS_ERR_OR_NULL(vlan->fwd_priv)) {
+			vlan->fwd_priv = NULL;
+		} else {
+			dev->features &= ~NETIF_F_LLTX;
+			return 0;
+		}
+	}
+
 	err = -EBUSY;
 	if (macvlan_addr_busy(vlan->port, dev->dev_addr))
 		goto out;
@@ -367,6 +388,11 @@ hash_add:
 del_unicast:
 	dev_uc_del(lowerdev, dev->dev_addr);
 out:
+	if (vlan->fwd_priv) {
+		lowerdev->netdev_ops->ndo_dfwd_del_station(lowerdev,
+							   vlan->fwd_priv);
+		vlan->fwd_priv = NULL;
+	}
 	return err;
 }
 
@@ -375,6 +401,13 @@ static int macvlan_stop(struct net_device *dev)
 	struct macvlan_dev *vlan = netdev_priv(dev);
 	struct net_device *lowerdev = vlan->lowerdev;
 
+	if (vlan->fwd_priv) {
+		lowerdev->netdev_ops->ndo_dfwd_del_station(lowerdev,
+							   vlan->fwd_priv);
+		vlan->fwd_priv = NULL;
+		return 0;
+	}
+
 	dev_uc_unsync(lowerdev, dev);
 	dev_mc_unsync(lowerdev, dev);
 
@@ -833,6 +866,7 @@ int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
 	if (err < 0)
 		goto destroy_port;
 
+	dev->priv_flags |= IFF_MACVLAN;
 	err = netdev_upper_dev_link(lowerdev, dev);
 	if (err)
 		goto destroy_port;
diff --git a/include/linux/if_macvlan.h b/include/linux/if_macvlan.h
index ddd33fd5904d..c2702856295e 100644
--- a/include/linux/if_macvlan.h
+++ b/include/linux/if_macvlan.h
@@ -61,6 +61,7 @@ struct macvlan_dev {
 	struct hlist_node	hlist;
 	struct macvlan_port	*port;
 	struct net_device	*lowerdev;
+	void			*fwd_priv;
 	struct macvlan_pcpu_stats __percpu *pcpu_stats;
 
 	DECLARE_BITMAP(mc_filter, MACVLAN_MC_FILTER_SZ);
diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h
index b05a4b501ab5..1005ebf17575 100644
--- a/include/linux/netdev_features.h
+++ b/include/linux/netdev_features.h
@@ -62,6 +62,7 @@ enum {
 	NETIF_F_HW_VLAN_STAG_TX_BIT,	/* Transmit VLAN STAG HW acceleration */
 	NETIF_F_HW_VLAN_STAG_RX_BIT,	/* Receive VLAN STAG HW acceleration */
 	NETIF_F_HW_VLAN_STAG_FILTER_BIT,/* Receive filtering on VLAN STAGs */
+	NETIF_F_HW_L2FW_DOFFLOAD_BIT,	/* Allow L2 Forwarding in Hardware */
 
 	/*
 	 * Add your fresh new feature above and remember to update
@@ -116,6 +117,7 @@ enum {
 #define NETIF_F_HW_VLAN_STAG_FILTER __NETIF_F(HW_VLAN_STAG_FILTER)
 #define NETIF_F_HW_VLAN_STAG_RX	__NETIF_F(HW_VLAN_STAG_RX)
 #define NETIF_F_HW_VLAN_STAG_TX	__NETIF_F(HW_VLAN_STAG_TX)
+#define NETIF_F_HW_L2FW_DOFFLOAD	__NETIF_F(HW_L2FW_DOFFLOAD)
 
 /* Features valid for ethtool to change */
 /* = all defined minus driver/device-class-related */
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index b6f6efbcfc74..15fa01c9a3bf 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -962,6 +962,25 @@ struct netdev_phys_port_id {
  *	Called by vxlan to notify the driver about a UDP port and socket
  *	address family that vxlan is not listening to anymore. The operation
  *	is protected by the vxlan_net->sock_lock.
+ *
+ * void* (*ndo_dfwd_add_station)(struct net_device *pdev,
+ *				 struct net_device *dev)
+ *	Called by upper layer devices to accelerate switching or other
+ *	station functionality into hardware. 'pdev is the lowerdev
+ *	to use for the offload and 'dev' is the net device that will
+ *	back the offload. Returns a pointer to the private structure
+ *	the upper layer will maintain.
+ * void (*ndo_dfwd_del_station)(struct net_device *pdev, void *priv)
+ *	Called by upper layer device to delete the station created
+ *	by 'ndo_dfwd_add_station'. 'pdev' is the net device backing
+ *	the station and priv is the structure returned by the add
+ *	operation.
+ * netdev_tx_t (*ndo_dfwd_start_xmit)(struct sk_buff *skb,
+ *				      struct net_device *dev,
+ *				      void *priv);
+ *	Callback to use for xmit over the accelerated station. This
+ *	is used in place of ndo_start_xmit on accelerated net
+ *	devices.
  */
 struct net_device_ops {
 	int			(*ndo_init)(struct net_device *dev);
@@ -1098,6 +1117,15 @@ struct net_device_ops {
 	void			(*ndo_del_vxlan_port)(struct  net_device *dev,
 						      sa_family_t sa_family,
 						      __be16 port);
+
+	void*			(*ndo_dfwd_add_station)(struct net_device *pdev,
+							struct net_device *dev);
+	void			(*ndo_dfwd_del_station)(struct net_device *pdev,
+							void *priv);
+
+	netdev_tx_t		(*ndo_dfwd_start_xmit) (struct sk_buff *skb,
+							struct net_device *dev,
+							void *priv);
 };
 
 /*
@@ -1195,6 +1223,7 @@ struct net_device {
 	/* Management operations */
 	const struct net_device_ops *netdev_ops;
 	const struct ethtool_ops *ethtool_ops;
+	const struct forwarding_accel_ops *fwd_ops;
 
 	/* Hardware header description */
 	const struct header_ops *header_ops;
@@ -2388,7 +2417,7 @@ int dev_change_carrier(struct net_device *, bool new_carrier);
 int dev_get_phys_port_id(struct net_device *dev,
 			 struct netdev_phys_port_id *ppid);
 int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
-			struct netdev_queue *txq);
+			struct netdev_queue *txq, void *accel_priv);
 int dev_forward_skb(struct net_device *dev, struct sk_buff *skb);
 
 extern int		netdev_budget;
@@ -2967,6 +2996,11 @@ static inline void netif_set_gso_max_size(struct net_device *dev,
 	dev->gso_max_size = size;
 }
 
+static inline bool netif_is_macvlan(struct net_device *dev)
+{
+	return dev->priv_flags & IFF_MACVLAN;
+}
+
 static inline bool netif_is_bond_master(struct net_device *dev)
 {
 	return dev->flags & IFF_MASTER && dev->priv_flags & IFF_BONDING;
diff --git a/include/uapi/linux/if.h b/include/uapi/linux/if.h
index 1ec407b01e46..d758163b0e43 100644
--- a/include/uapi/linux/if.h
+++ b/include/uapi/linux/if.h
@@ -83,6 +83,7 @@
 #define IFF_SUPP_NOFCS	0x80000		/* device supports sending custom FCS */
 #define IFF_LIVE_ADDR_CHANGE 0x100000	/* device supports hardware address
 					 * change when it's running */
+#define IFF_MACVLAN 0x200000		/* Macvlan device */
 
 
 #define IF_GET_IFACE	0x0001		/* for querying only */
diff --git a/net/core/dev.c b/net/core/dev.c
index 0e6136546a8c..8ffc52e01ece 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -2538,7 +2538,7 @@ static inline int skb_needs_linearize(struct sk_buff *skb,
 }
 
 int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
-			struct netdev_queue *txq)
+			struct netdev_queue *txq, void *accel_priv)
 {
 	const struct net_device_ops *ops = dev->netdev_ops;
 	int rc = NETDEV_TX_OK;
@@ -2604,9 +2604,13 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev,
 			dev_queue_xmit_nit(skb, dev);
 
 		skb_len = skb->len;
-		rc = ops->ndo_start_xmit(skb, dev);
+		if (accel_priv)
+			rc = ops->ndo_dfwd_start_xmit(skb, dev, accel_priv);
+		else
+			rc = ops->ndo_start_xmit(skb, dev);
+
 		trace_net_dev_xmit(skb, rc, dev, skb_len);
-		if (rc == NETDEV_TX_OK)
+		if (rc == NETDEV_TX_OK && txq)
 			txq_trans_update(txq);
 		return rc;
 	}
@@ -2622,7 +2626,10 @@ gso:
 			dev_queue_xmit_nit(nskb, dev);
 
 		skb_len = nskb->len;
-		rc = ops->ndo_start_xmit(nskb, dev);
+		if (accel_priv)
+			rc = ops->ndo_dfwd_start_xmit(nskb, dev, accel_priv);
+		else
+			rc = ops->ndo_start_xmit(nskb, dev);
 		trace_net_dev_xmit(nskb, rc, dev, skb_len);
 		if (unlikely(rc != NETDEV_TX_OK)) {
 			if (rc & ~NETDEV_TX_MASK)
@@ -2647,6 +2654,7 @@ out_kfree_skb:
 out:
 	return rc;
 }
+EXPORT_SYMBOL_GPL(dev_hard_start_xmit);
 
 static void qdisc_pkt_len_init(struct sk_buff *skb)
 {
@@ -2854,7 +2862,7 @@ int dev_queue_xmit(struct sk_buff *skb)
 
 			if (!netif_xmit_stopped(txq)) {
 				__this_cpu_inc(xmit_recursion);
-				rc = dev_hard_start_xmit(skb, dev, txq);
+				rc = dev_hard_start_xmit(skb, dev, txq, NULL);
 				__this_cpu_dec(xmit_recursion);
 				if (dev_xmit_complete(rc)) {
 					HARD_TX_UNLOCK(dev, txq);
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 862989898f61..30071dec287a 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -96,6 +96,7 @@ static const char netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN]
 	[NETIF_F_LOOPBACK_BIT] =         "loopback",
 	[NETIF_F_RXFCS_BIT] =            "rx-fcs",
 	[NETIF_F_RXALL_BIT] =            "rx-all",
+	[NETIF_F_HW_L2FW_DOFFLOAD_BIT] = "l2-fwd-offload",
 };
 
 static int ethtool_get_features(struct net_device *dev, void __user *useraddr)
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index 7fc899a943a8..922a09406ba7 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -126,7 +126,7 @@ int sch_direct_xmit(struct sk_buff *skb, struct Qdisc *q,
 
 	HARD_TX_LOCK(dev, txq, smp_processor_id());
 	if (!netif_xmit_frozen_or_stopped(txq))
-		ret = dev_hard_start_xmit(skb, dev, txq);
+		ret = dev_hard_start_xmit(skb, dev, txq, NULL);
 
 	HARD_TX_UNLOCK(dev, txq);
 
-- 
cgit 


From 2a47fa45d4dfbc54659d28de311a1f764b296a3c Mon Sep 17 00:00:00 2001
From: John Fastabend <john.r.fastabend@intel.com>
Date: Wed, 6 Nov 2013 09:54:52 -0800
Subject: ixgbe: enable l2 forwarding acceleration for macvlans

Now that l2 acceleration ops are in place from the prior patch,
enable ixgbe to take advantage of these operations.  Allow it to
allocate queues for a macvlan so that when we transmit a frame,
we can do the switching in hardware inside the ixgbe card, rather
than in software.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: "David S. Miller" <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe.h       |  20 ++
 drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c   |  15 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c  | 480 +++++++++++++++++++++----
 drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c |  17 +-
 4 files changed, 443 insertions(+), 89 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index 09149143ee0f..f38fc0a343a2 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -223,6 +223,15 @@ enum ixgbe_ring_state_t {
 	__IXGBE_RX_FCOE,
 };
 
+struct ixgbe_fwd_adapter {
+	unsigned long active_vlans[BITS_TO_LONGS(VLAN_N_VID)];
+	struct net_device *netdev;
+	struct ixgbe_adapter *real_adapter;
+	unsigned int tx_base_queue;
+	unsigned int rx_base_queue;
+	int pool;
+};
+
 #define check_for_tx_hang(ring) \
 	test_bit(__IXGBE_TX_DETECT_HANG, &(ring)->state)
 #define set_check_for_tx_hang(ring) \
@@ -240,6 +249,7 @@ struct ixgbe_ring {
 	struct ixgbe_q_vector *q_vector; /* backpointer to host q_vector */
 	struct net_device *netdev;	/* netdev ring belongs to */
 	struct device *dev;		/* device for DMA mapping */
+	struct ixgbe_fwd_adapter *l2_accel_priv;
 	void *desc;			/* descriptor ring memory */
 	union {
 		struct ixgbe_tx_buffer *tx_buffer_info;
@@ -297,6 +307,12 @@ enum ixgbe_ring_f_enum {
 #define IXGBE_MAX_FCOE_INDICES  8
 #define MAX_RX_QUEUES (IXGBE_MAX_FDIR_INDICES + 1)
 #define MAX_TX_QUEUES (IXGBE_MAX_FDIR_INDICES + 1)
+#define IXGBE_MAX_L2A_QUEUES 4
+#define IXGBE_MAX_L2A_QUEUES 4
+#define IXGBE_BAD_L2A_QUEUE 3
+#define IXGBE_MAX_MACVLANS	31
+#define IXGBE_MAX_DCBMACVLANS	8
+
 struct ixgbe_ring_feature {
 	u16 limit;	/* upper limit on feature indices */
 	u16 indices;	/* current value of indices */
@@ -766,6 +782,7 @@ struct ixgbe_adapter {
 #endif /*CONFIG_DEBUG_FS*/
 
 	u8 default_up;
+	unsigned long fwd_bitmask; /* Bitmask indicating in use pools */
 };
 
 struct ixgbe_fdir_filter {
@@ -939,4 +956,7 @@ void ixgbe_ptp_check_pps_event(struct ixgbe_adapter *adapter, u32 eicr);
 void ixgbe_sriov_reinit(struct ixgbe_adapter *adapter);
 #endif
 
+netdev_tx_t ixgbe_xmit_frame_ring(struct sk_buff *skb,
+				  struct ixgbe_adapter *adapter,
+				  struct ixgbe_ring *tx_ring);
 #endif /* _IXGBE_H_ */
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c
index 90b4e1089ecc..32e3eaaa160a 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c
@@ -498,6 +498,7 @@ static bool ixgbe_set_sriov_queues(struct ixgbe_adapter *adapter)
 #ifdef IXGBE_FCOE
 	u16 fcoe_i = 0;
 #endif
+	bool pools = (find_first_zero_bit(&adapter->fwd_bitmask, 32) > 1);
 
 	/* only proceed if SR-IOV is enabled */
 	if (!(adapter->flags & IXGBE_FLAG_SRIOV_ENABLED))
@@ -510,7 +511,7 @@ static bool ixgbe_set_sriov_queues(struct ixgbe_adapter *adapter)
 	vmdq_i = min_t(u16, IXGBE_MAX_VMDQ_INDICES, vmdq_i);
 
 	/* 64 pool mode with 2 queues per pool */
-	if ((vmdq_i > 32) || (rss_i < 4)) {
+	if ((vmdq_i > 32) || (rss_i < 4) || (vmdq_i > 16 && pools)) {
 		vmdq_m = IXGBE_82599_VMDQ_2Q_MASK;
 		rss_m = IXGBE_RSS_2Q_MASK;
 		rss_i = min_t(u16, rss_i, 2);
@@ -852,7 +853,11 @@ static int ixgbe_alloc_q_vector(struct ixgbe_adapter *adapter,
 
 		/* apply Tx specific ring traits */
 		ring->count = adapter->tx_ring_count;
-		ring->queue_index = txr_idx;
+		if (adapter->num_rx_pools > 1)
+			ring->queue_index =
+				txr_idx % adapter->num_rx_queues_per_pool;
+		else
+			ring->queue_index = txr_idx;
 
 		/* assign ring to adapter */
 		adapter->tx_ring[txr_idx] = ring;
@@ -895,7 +900,11 @@ static int ixgbe_alloc_q_vector(struct ixgbe_adapter *adapter,
 #endif /* IXGBE_FCOE */
 		/* apply Rx specific ring traits */
 		ring->count = adapter->rx_ring_count;
-		ring->queue_index = rxr_idx;
+		if (adapter->num_rx_pools > 1)
+			ring->queue_index =
+				rxr_idx % adapter->num_rx_queues_per_pool;
+		else
+			ring->queue_index = rxr_idx;
 
 		/* assign ring to adapter */
 		adapter->rx_ring[rxr_idx] = ring;
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 5191b3ca9a26..607275de2f1e 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -44,6 +44,7 @@
 #include <linux/ethtool.h>
 #include <linux/if.h>
 #include <linux/if_vlan.h>
+#include <linux/if_macvlan.h>
 #include <linux/if_bridge.h>
 #include <linux/prefetch.h>
 #include <scsi/fc/fc_fcoe.h>
@@ -870,11 +871,18 @@ static u64 ixgbe_get_tx_completed(struct ixgbe_ring *ring)
 
 static u64 ixgbe_get_tx_pending(struct ixgbe_ring *ring)
 {
-	struct ixgbe_adapter *adapter = netdev_priv(ring->netdev);
-	struct ixgbe_hw *hw = &adapter->hw;
+	struct ixgbe_adapter *adapter;
+	struct ixgbe_hw *hw;
+	u32 head, tail;
+
+	if (ring->l2_accel_priv)
+		adapter = ring->l2_accel_priv->real_adapter;
+	else
+		adapter = netdev_priv(ring->netdev);
 
-	u32 head = IXGBE_READ_REG(hw, IXGBE_TDH(ring->reg_idx));
-	u32 tail = IXGBE_READ_REG(hw, IXGBE_TDT(ring->reg_idx));
+	hw = &adapter->hw;
+	head = IXGBE_READ_REG(hw, IXGBE_TDH(ring->reg_idx));
+	tail = IXGBE_READ_REG(hw, IXGBE_TDT(ring->reg_idx));
 
 	if (head != tail)
 		return (head < tail) ?
@@ -3003,7 +3011,7 @@ void ixgbe_configure_tx_ring(struct ixgbe_adapter *adapter,
 		struct ixgbe_q_vector *q_vector = ring->q_vector;
 
 		if (q_vector)
-			netif_set_xps_queue(adapter->netdev,
+			netif_set_xps_queue(ring->netdev,
 					    &q_vector->affinity_mask,
 					    ring->queue_index);
 	}
@@ -3393,7 +3401,7 @@ static void ixgbe_setup_psrtype(struct ixgbe_adapter *adapter)
 {
 	struct ixgbe_hw *hw = &adapter->hw;
 	int rss_i = adapter->ring_feature[RING_F_RSS].indices;
-	int p;
+	u16 pool;
 
 	/* PSRTYPE must be initialized in non 82598 adapters */
 	u32 psrtype = IXGBE_PSRTYPE_TCPHDR |
@@ -3410,9 +3418,8 @@ static void ixgbe_setup_psrtype(struct ixgbe_adapter *adapter)
 	else if (rss_i > 1)
 		psrtype |= 1 << 29;
 
-	for (p = 0; p < adapter->num_rx_pools; p++)
-		IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(VMDQ_P(p)),
-				psrtype);
+	for_each_set_bit(pool, &adapter->fwd_bitmask, 32)
+		IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(VMDQ_P(pool)), psrtype);
 }
 
 static void ixgbe_configure_virtualization(struct ixgbe_adapter *adapter)
@@ -3681,7 +3688,11 @@ static void ixgbe_vlan_strip_disable(struct ixgbe_adapter *adapter)
 	case ixgbe_mac_82599EB:
 	case ixgbe_mac_X540:
 		for (i = 0; i < adapter->num_rx_queues; i++) {
-			j = adapter->rx_ring[i]->reg_idx;
+			struct ixgbe_ring *ring = adapter->rx_ring[i];
+
+			if (ring->l2_accel_priv)
+				continue;
+			j = ring->reg_idx;
 			vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j));
 			vlnctrl &= ~IXGBE_RXDCTL_VME;
 			IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl);
@@ -3711,7 +3722,11 @@ static void ixgbe_vlan_strip_enable(struct ixgbe_adapter *adapter)
 	case ixgbe_mac_82599EB:
 	case ixgbe_mac_X540:
 		for (i = 0; i < adapter->num_rx_queues; i++) {
-			j = adapter->rx_ring[i]->reg_idx;
+			struct ixgbe_ring *ring = adapter->rx_ring[i];
+
+			if (ring->l2_accel_priv)
+				continue;
+			j = ring->reg_idx;
 			vlnctrl = IXGBE_READ_REG(hw, IXGBE_RXDCTL(j));
 			vlnctrl |= IXGBE_RXDCTL_VME;
 			IXGBE_WRITE_REG(hw, IXGBE_RXDCTL(j), vlnctrl);
@@ -3748,7 +3763,7 @@ static int ixgbe_write_uc_addr_list(struct net_device *netdev)
 	unsigned int rar_entries = hw->mac.num_rar_entries - 1;
 	int count = 0;
 
-	/* In SR-IOV mode significantly less RAR entries are available */
+	/* In SR-IOV/VMDQ modes significantly less RAR entries are available */
 	if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED)
 		rar_entries = IXGBE_MAX_PF_MACVLANS - 1;
 
@@ -4113,6 +4128,230 @@ static void ixgbe_fdir_filter_restore(struct ixgbe_adapter *adapter)
 	spin_unlock(&adapter->fdir_perfect_lock);
 }
 
+static void ixgbe_macvlan_set_rx_mode(struct net_device *dev, unsigned int pool,
+				      struct ixgbe_adapter *adapter)
+{
+	struct ixgbe_hw *hw = &adapter->hw;
+	u32 vmolr;
+
+	/* No unicast promiscuous support for VMDQ devices. */
+	vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(pool));
+	vmolr |= (IXGBE_VMOLR_ROMPE | IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE);
+
+	/* clear the affected bit */
+	vmolr &= ~IXGBE_VMOLR_MPE;
+
+	if (dev->flags & IFF_ALLMULTI) {
+		vmolr |= IXGBE_VMOLR_MPE;
+	} else {
+		vmolr |= IXGBE_VMOLR_ROMPE;
+		hw->mac.ops.update_mc_addr_list(hw, dev);
+	}
+	ixgbe_write_uc_addr_list(adapter->netdev);
+	IXGBE_WRITE_REG(hw, IXGBE_VMOLR(pool), vmolr);
+}
+
+static void ixgbe_add_mac_filter(struct ixgbe_adapter *adapter,
+				 u8 *addr, u16 pool)
+{
+	struct ixgbe_hw *hw = &adapter->hw;
+	unsigned int entry;
+
+	entry = hw->mac.num_rar_entries - pool;
+	hw->mac.ops.set_rar(hw, entry, addr, VMDQ_P(pool), IXGBE_RAH_AV);
+}
+
+static void ixgbe_fwd_psrtype(struct ixgbe_fwd_adapter *vadapter)
+{
+	struct ixgbe_adapter *adapter = vadapter->real_adapter;
+	int rss_i = vadapter->netdev->real_num_rx_queues;
+	struct ixgbe_hw *hw = &adapter->hw;
+	u16 pool = vadapter->pool;
+	u32 psrtype = IXGBE_PSRTYPE_TCPHDR |
+		      IXGBE_PSRTYPE_UDPHDR |
+		      IXGBE_PSRTYPE_IPV4HDR |
+		      IXGBE_PSRTYPE_L2HDR |
+		      IXGBE_PSRTYPE_IPV6HDR;
+
+	if (hw->mac.type == ixgbe_mac_82598EB)
+		return;
+
+	if (rss_i > 3)
+		psrtype |= 2 << 29;
+	else if (rss_i > 1)
+		psrtype |= 1 << 29;
+
+	IXGBE_WRITE_REG(hw, IXGBE_PSRTYPE(VMDQ_P(pool)), psrtype);
+}
+
+/**
+ * ixgbe_clean_rx_ring - Free Rx Buffers per Queue
+ * @rx_ring: ring to free buffers from
+ **/
+static void ixgbe_clean_rx_ring(struct ixgbe_ring *rx_ring)
+{
+	struct device *dev = rx_ring->dev;
+	unsigned long size;
+	u16 i;
+
+	/* ring already cleared, nothing to do */
+	if (!rx_ring->rx_buffer_info)
+		return;
+
+	/* Free all the Rx ring sk_buffs */
+	for (i = 0; i < rx_ring->count; i++) {
+		struct ixgbe_rx_buffer *rx_buffer;
+
+		rx_buffer = &rx_ring->rx_buffer_info[i];
+		if (rx_buffer->skb) {
+			struct sk_buff *skb = rx_buffer->skb;
+			if (IXGBE_CB(skb)->page_released) {
+				dma_unmap_page(dev,
+					       IXGBE_CB(skb)->dma,
+					       ixgbe_rx_bufsz(rx_ring),
+					       DMA_FROM_DEVICE);
+				IXGBE_CB(skb)->page_released = false;
+			}
+			dev_kfree_skb(skb);
+		}
+		rx_buffer->skb = NULL;
+		if (rx_buffer->dma)
+			dma_unmap_page(dev, rx_buffer->dma,
+				       ixgbe_rx_pg_size(rx_ring),
+				       DMA_FROM_DEVICE);
+		rx_buffer->dma = 0;
+		if (rx_buffer->page)
+			__free_pages(rx_buffer->page,
+				     ixgbe_rx_pg_order(rx_ring));
+		rx_buffer->page = NULL;
+	}
+
+	size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count;
+	memset(rx_ring->rx_buffer_info, 0, size);
+
+	/* Zero out the descriptor ring */
+	memset(rx_ring->desc, 0, rx_ring->size);
+
+	rx_ring->next_to_alloc = 0;
+	rx_ring->next_to_clean = 0;
+	rx_ring->next_to_use = 0;
+}
+
+static void ixgbe_disable_fwd_ring(struct ixgbe_fwd_adapter *vadapter,
+				   struct ixgbe_ring *rx_ring)
+{
+	struct ixgbe_adapter *adapter = vadapter->real_adapter;
+	int index = rx_ring->queue_index + vadapter->rx_base_queue;
+
+	/* shutdown specific queue receive and wait for dma to settle */
+	ixgbe_disable_rx_queue(adapter, rx_ring);
+	usleep_range(10000, 20000);
+	ixgbe_irq_disable_queues(adapter, ((u64)1 << index));
+	ixgbe_clean_rx_ring(rx_ring);
+	rx_ring->l2_accel_priv = NULL;
+}
+
+int ixgbe_fwd_ring_down(struct net_device *vdev,
+			struct ixgbe_fwd_adapter *accel)
+{
+	struct ixgbe_adapter *adapter = accel->real_adapter;
+	unsigned int rxbase = accel->rx_base_queue;
+	unsigned int txbase = accel->tx_base_queue;
+	int i;
+
+	netif_tx_stop_all_queues(vdev);
+
+	for (i = 0; i < adapter->num_rx_queues_per_pool; i++) {
+		ixgbe_disable_fwd_ring(accel, adapter->rx_ring[rxbase + i]);
+		adapter->rx_ring[rxbase + i]->netdev = adapter->netdev;
+	}
+
+	for (i = 0; i < adapter->num_rx_queues_per_pool; i++) {
+		adapter->tx_ring[txbase + i]->l2_accel_priv = NULL;
+		adapter->tx_ring[txbase + i]->netdev = adapter->netdev;
+	}
+
+
+	return 0;
+}
+
+static int ixgbe_fwd_ring_up(struct net_device *vdev,
+			     struct ixgbe_fwd_adapter *accel)
+{
+	struct ixgbe_adapter *adapter = accel->real_adapter;
+	unsigned int rxbase, txbase, queues;
+	int i, baseq, err = 0;
+
+	if (!test_bit(accel->pool, &adapter->fwd_bitmask))
+		return 0;
+
+	baseq = accel->pool * adapter->num_rx_queues_per_pool;
+	netdev_dbg(vdev, "pool %i:%i queues %i:%i VSI bitmask %lx\n",
+		   accel->pool, adapter->num_rx_pools,
+		   baseq, baseq + adapter->num_rx_queues_per_pool,
+		   adapter->fwd_bitmask);
+
+	accel->netdev = vdev;
+	accel->rx_base_queue = rxbase = baseq;
+	accel->tx_base_queue = txbase = baseq;
+
+	for (i = 0; i < adapter->num_rx_queues_per_pool; i++)
+		ixgbe_disable_fwd_ring(accel, adapter->rx_ring[rxbase + i]);
+
+	for (i = 0; i < adapter->num_rx_queues_per_pool; i++) {
+		adapter->rx_ring[rxbase + i]->netdev = vdev;
+		adapter->rx_ring[rxbase + i]->l2_accel_priv = accel;
+		ixgbe_configure_rx_ring(adapter, adapter->rx_ring[rxbase + i]);
+	}
+
+	for (i = 0; i < adapter->num_rx_queues_per_pool; i++) {
+		adapter->tx_ring[txbase + i]->netdev = vdev;
+		adapter->tx_ring[txbase + i]->l2_accel_priv = accel;
+	}
+
+	queues = min_t(unsigned int,
+		       adapter->num_rx_queues_per_pool, vdev->num_tx_queues);
+	err = netif_set_real_num_tx_queues(vdev, queues);
+	if (err)
+		goto fwd_queue_err;
+
+	queues = min_t(unsigned int,
+		       adapter->num_rx_queues_per_pool, vdev->num_rx_queues);
+	err = netif_set_real_num_rx_queues(vdev, queues);
+	if (err)
+		goto fwd_queue_err;
+
+	if (is_valid_ether_addr(vdev->dev_addr))
+		ixgbe_add_mac_filter(adapter, vdev->dev_addr, accel->pool);
+
+	ixgbe_fwd_psrtype(accel);
+	ixgbe_macvlan_set_rx_mode(vdev, accel->pool, adapter);
+	return err;
+fwd_queue_err:
+	ixgbe_fwd_ring_down(vdev, accel);
+	return err;
+}
+
+static void ixgbe_configure_dfwd(struct ixgbe_adapter *adapter)
+{
+	struct net_device *upper;
+	struct list_head *iter;
+	int err;
+
+	netdev_for_each_all_upper_dev_rcu(adapter->netdev, upper, iter) {
+		if (netif_is_macvlan(upper)) {
+			struct macvlan_dev *dfwd = netdev_priv(upper);
+			struct ixgbe_fwd_adapter *vadapter = dfwd->fwd_priv;
+
+			if (dfwd->fwd_priv) {
+				err = ixgbe_fwd_ring_up(upper, vadapter);
+				if (err)
+					continue;
+			}
+		}
+	}
+}
+
 static void ixgbe_configure(struct ixgbe_adapter *adapter)
 {
 	struct ixgbe_hw *hw = &adapter->hw;
@@ -4164,6 +4403,7 @@ static void ixgbe_configure(struct ixgbe_adapter *adapter)
 #endif /* IXGBE_FCOE */
 	ixgbe_configure_tx(adapter);
 	ixgbe_configure_rx(adapter);
+	ixgbe_configure_dfwd(adapter);
 }
 
 static inline bool ixgbe_is_sfp(struct ixgbe_hw *hw)
@@ -4317,6 +4557,8 @@ static void ixgbe_setup_gpie(struct ixgbe_adapter *adapter)
 static void ixgbe_up_complete(struct ixgbe_adapter *adapter)
 {
 	struct ixgbe_hw *hw = &adapter->hw;
+	struct net_device *upper;
+	struct list_head *iter;
 	int err;
 	u32 ctrl_ext;
 
@@ -4360,6 +4602,16 @@ static void ixgbe_up_complete(struct ixgbe_adapter *adapter)
 	/* enable transmits */
 	netif_tx_start_all_queues(adapter->netdev);
 
+	/* enable any upper devices */
+	netdev_for_each_all_upper_dev_rcu(adapter->netdev, upper, iter) {
+		if (netif_is_macvlan(upper)) {
+			struct macvlan_dev *vlan = netdev_priv(upper);
+
+			if (vlan->fwd_priv)
+				netif_tx_start_all_queues(upper);
+		}
+	}
+
 	/* bring the link up in the watchdog, this could race with our first
 	 * link up interrupt but shouldn't be a problem */
 	adapter->flags |= IXGBE_FLAG_NEED_LINK_UPDATE;
@@ -4450,59 +4702,6 @@ void ixgbe_reset(struct ixgbe_adapter *adapter)
 		ixgbe_ptp_reset(adapter);
 }
 
-/**
- * ixgbe_clean_rx_ring - Free Rx Buffers per Queue
- * @rx_ring: ring to free buffers from
- **/
-static void ixgbe_clean_rx_ring(struct ixgbe_ring *rx_ring)
-{
-	struct device *dev = rx_ring->dev;
-	unsigned long size;
-	u16 i;
-
-	/* ring already cleared, nothing to do */
-	if (!rx_ring->rx_buffer_info)
-		return;
-
-	/* Free all the Rx ring sk_buffs */
-	for (i = 0; i < rx_ring->count; i++) {
-		struct ixgbe_rx_buffer *rx_buffer;
-
-		rx_buffer = &rx_ring->rx_buffer_info[i];
-		if (rx_buffer->skb) {
-			struct sk_buff *skb = rx_buffer->skb;
-			if (IXGBE_CB(skb)->page_released) {
-				dma_unmap_page(dev,
-					       IXGBE_CB(skb)->dma,
-					       ixgbe_rx_bufsz(rx_ring),
-					       DMA_FROM_DEVICE);
-				IXGBE_CB(skb)->page_released = false;
-			}
-			dev_kfree_skb(skb);
-		}
-		rx_buffer->skb = NULL;
-		if (rx_buffer->dma)
-			dma_unmap_page(dev, rx_buffer->dma,
-				       ixgbe_rx_pg_size(rx_ring),
-				       DMA_FROM_DEVICE);
-		rx_buffer->dma = 0;
-		if (rx_buffer->page)
-			__free_pages(rx_buffer->page,
-				     ixgbe_rx_pg_order(rx_ring));
-		rx_buffer->page = NULL;
-	}
-
-	size = sizeof(struct ixgbe_rx_buffer) * rx_ring->count;
-	memset(rx_ring->rx_buffer_info, 0, size);
-
-	/* Zero out the descriptor ring */
-	memset(rx_ring->desc, 0, rx_ring->size);
-
-	rx_ring->next_to_alloc = 0;
-	rx_ring->next_to_clean = 0;
-	rx_ring->next_to_use = 0;
-}
-
 /**
  * ixgbe_clean_tx_ring - Free Tx Buffers
  * @tx_ring: ring to be cleaned
@@ -4580,6 +4779,8 @@ void ixgbe_down(struct ixgbe_adapter *adapter)
 {
 	struct net_device *netdev = adapter->netdev;
 	struct ixgbe_hw *hw = &adapter->hw;
+	struct net_device *upper;
+	struct list_head *iter;
 	u32 rxctrl;
 	int i;
 
@@ -4603,6 +4804,19 @@ void ixgbe_down(struct ixgbe_adapter *adapter)
 	netif_carrier_off(netdev);
 	netif_tx_disable(netdev);
 
+	/* disable any upper devices */
+	netdev_for_each_all_upper_dev_rcu(adapter->netdev, upper, iter) {
+		if (netif_is_macvlan(upper)) {
+			struct macvlan_dev *vlan = netdev_priv(upper);
+
+			if (vlan->fwd_priv) {
+				netif_tx_stop_all_queues(upper);
+				netif_carrier_off(upper);
+				netif_tx_disable(upper);
+			}
+		}
+	}
+
 	ixgbe_irq_disable(adapter);
 
 	ixgbe_napi_disable_all(adapter);
@@ -4833,6 +5047,8 @@ static int ixgbe_sw_init(struct ixgbe_adapter *adapter)
 		return -EIO;
 	}
 
+	/* PF holds first pool slot */
+	set_bit(0, &adapter->fwd_bitmask);
 	set_bit(__IXGBE_DOWN, &adapter->state);
 
 	return 0;
@@ -5138,7 +5354,7 @@ static int ixgbe_change_mtu(struct net_device *netdev, int new_mtu)
 static int ixgbe_open(struct net_device *netdev)
 {
 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
-	int err;
+	int err, queues;
 
 	/* disallow open during test */
 	if (test_bit(__IXGBE_TESTING, &adapter->state))
@@ -5163,16 +5379,21 @@ static int ixgbe_open(struct net_device *netdev)
 		goto err_req_irq;
 
 	/* Notify the stack of the actual queue counts. */
-	err = netif_set_real_num_tx_queues(netdev,
-					   adapter->num_rx_pools > 1 ? 1 :
-					   adapter->num_tx_queues);
+	if (adapter->num_rx_pools > 1)
+		queues = adapter->num_rx_queues_per_pool;
+	else
+		queues = adapter->num_tx_queues;
+
+	err = netif_set_real_num_tx_queues(netdev, queues);
 	if (err)
 		goto err_set_queues;
 
-
-	err = netif_set_real_num_rx_queues(netdev,
-					   adapter->num_rx_pools > 1 ? 1 :
-					   adapter->num_rx_queues);
+	if (adapter->num_rx_pools > 1 &&
+	    adapter->num_rx_queues > IXGBE_MAX_L2A_QUEUES)
+		queues = IXGBE_MAX_L2A_QUEUES;
+	else
+		queues = adapter->num_rx_queues;
+	err = netif_set_real_num_rx_queues(netdev, queues);
 	if (err)
 		goto err_set_queues;
 
@@ -6762,8 +6983,9 @@ out_drop:
 	return NETDEV_TX_OK;
 }
 
-static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb,
-				    struct net_device *netdev)
+static netdev_tx_t __ixgbe_xmit_frame(struct sk_buff *skb,
+				      struct net_device *netdev,
+				      struct ixgbe_ring *ring)
 {
 	struct ixgbe_adapter *adapter = netdev_priv(netdev);
 	struct ixgbe_ring *tx_ring;
@@ -6779,10 +7001,17 @@ static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb,
 		skb_set_tail_pointer(skb, 17);
 	}
 
-	tx_ring = adapter->tx_ring[skb->queue_mapping];
+	tx_ring = ring ? ring : adapter->tx_ring[skb->queue_mapping];
+
 	return ixgbe_xmit_frame_ring(skb, adapter, tx_ring);
 }
 
+static netdev_tx_t ixgbe_xmit_frame(struct sk_buff *skb,
+				    struct net_device *netdev)
+{
+	return __ixgbe_xmit_frame(skb, netdev, NULL);
+}
+
 /**
  * ixgbe_set_mac - Change the Ethernet Address of the NIC
  * @netdev: network interface device structure
@@ -7039,6 +7268,7 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc)
 {
 	struct ixgbe_adapter *adapter = netdev_priv(dev);
 	struct ixgbe_hw *hw = &adapter->hw;
+	bool pools;
 
 	/* Hardware supports up to 8 traffic classes */
 	if (tc > adapter->dcb_cfg.num_tcs.pg_tcs ||
@@ -7046,6 +7276,10 @@ int ixgbe_setup_tc(struct net_device *dev, u8 tc)
 	     tc < MAX_TRAFFIC_CLASS))
 		return -EINVAL;
 
+	pools = (find_first_zero_bit(&adapter->fwd_bitmask, 32) > 1);
+	if (tc && pools && adapter->num_rx_pools > IXGBE_MAX_DCBMACVLANS)
+		return -EBUSY;
+
 	/* Hardware has to reinitialize queues and interrupts to
 	 * match packet buffer alignment. Unfortunately, the
 	 * hardware is not flexible enough to do this dynamically.
@@ -7300,6 +7534,94 @@ static int ixgbe_ndo_bridge_getlink(struct sk_buff *skb, u32 pid, u32 seq,
 	return ndo_dflt_bridge_getlink(skb, pid, seq, dev, mode);
 }
 
+static void *ixgbe_fwd_add(struct net_device *pdev, struct net_device *vdev)
+{
+	struct ixgbe_fwd_adapter *fwd_adapter = NULL;
+	struct ixgbe_adapter *adapter = netdev_priv(pdev);
+	int pool, err;
+
+	/* Check for hardware restriction on number of rx/tx queues */
+	if (vdev->num_rx_queues != vdev->num_tx_queues ||
+	    vdev->num_tx_queues > IXGBE_MAX_L2A_QUEUES ||
+	    vdev->num_tx_queues == IXGBE_BAD_L2A_QUEUE) {
+		netdev_info(pdev,
+			    "%s: Supports RX/TX Queue counts 1,2, and 4\n",
+			    pdev->name);
+		return ERR_PTR(-EINVAL);
+	}
+
+	if (((adapter->flags & IXGBE_FLAG_DCB_ENABLED) &&
+	      adapter->num_rx_pools > IXGBE_MAX_DCBMACVLANS - 1) ||
+	    (adapter->num_rx_pools > IXGBE_MAX_MACVLANS))
+		return ERR_PTR(-EBUSY);
+
+	fwd_adapter = kcalloc(1, sizeof(struct ixgbe_fwd_adapter), GFP_KERNEL);
+	if (!fwd_adapter)
+		return ERR_PTR(-ENOMEM);
+
+	pool = find_first_zero_bit(&adapter->fwd_bitmask, 32);
+	adapter->num_rx_pools++;
+	set_bit(pool, &adapter->fwd_bitmask);
+
+	/* Enable VMDq flag so device will be set in VM mode */
+	adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED | IXGBE_FLAG_SRIOV_ENABLED;
+	adapter->ring_feature[RING_F_VMDQ].limit = adapter->num_rx_pools;
+	adapter->ring_feature[RING_F_RSS].limit = vdev->num_rx_queues;
+
+	/* Force reinit of ring allocation with VMDQ enabled */
+	err = ixgbe_setup_tc(pdev, netdev_get_num_tc(pdev));
+	if (err)
+		goto fwd_add_err;
+	fwd_adapter->pool = pool;
+	fwd_adapter->real_adapter = adapter;
+	err = ixgbe_fwd_ring_up(vdev, fwd_adapter);
+	if (err)
+		goto fwd_add_err;
+	netif_tx_start_all_queues(vdev);
+	return fwd_adapter;
+fwd_add_err:
+	/* unwind counter and free adapter struct */
+	netdev_info(pdev,
+		    "%s: dfwd hardware acceleration failed\n", vdev->name);
+	clear_bit(pool, &adapter->fwd_bitmask);
+	adapter->num_rx_pools--;
+	kfree(fwd_adapter);
+	return ERR_PTR(err);
+}
+
+static void ixgbe_fwd_del(struct net_device *pdev, void *priv)
+{
+	struct ixgbe_fwd_adapter *fwd_adapter = priv;
+	struct ixgbe_adapter *adapter = fwd_adapter->real_adapter;
+
+	clear_bit(fwd_adapter->pool, &adapter->fwd_bitmask);
+	adapter->num_rx_pools--;
+
+	adapter->ring_feature[RING_F_VMDQ].limit = adapter->num_rx_pools;
+	ixgbe_fwd_ring_down(fwd_adapter->netdev, fwd_adapter);
+	ixgbe_setup_tc(pdev, netdev_get_num_tc(pdev));
+	netdev_dbg(pdev, "pool %i:%i queues %i:%i VSI bitmask %lx\n",
+		   fwd_adapter->pool, adapter->num_rx_pools,
+		   fwd_adapter->rx_base_queue,
+		   fwd_adapter->rx_base_queue + adapter->num_rx_queues_per_pool,
+		   adapter->fwd_bitmask);
+	kfree(fwd_adapter);
+}
+
+static netdev_tx_t ixgbe_fwd_xmit(struct sk_buff *skb,
+				  struct net_device *dev,
+				  void *priv)
+{
+	struct ixgbe_fwd_adapter *fwd_adapter = priv;
+	unsigned int queue;
+	struct ixgbe_ring *tx_ring;
+
+	queue = skb->queue_mapping + fwd_adapter->tx_base_queue;
+	tx_ring = fwd_adapter->real_adapter->tx_ring[queue];
+
+	return __ixgbe_xmit_frame(skb, dev, tx_ring);
+}
+
 static const struct net_device_ops ixgbe_netdev_ops = {
 	.ndo_open		= ixgbe_open,
 	.ndo_stop		= ixgbe_close,
@@ -7344,6 +7666,9 @@ static const struct net_device_ops ixgbe_netdev_ops = {
 	.ndo_fdb_add		= ixgbe_ndo_fdb_add,
 	.ndo_bridge_setlink	= ixgbe_ndo_bridge_setlink,
 	.ndo_bridge_getlink	= ixgbe_ndo_bridge_getlink,
+	.ndo_dfwd_add_station	= ixgbe_fwd_add,
+	.ndo_dfwd_del_station	= ixgbe_fwd_del,
+	.ndo_dfwd_start_xmit	= ixgbe_fwd_xmit,
 };
 
 /**
@@ -7645,7 +7970,8 @@ skip_sriov:
 			   NETIF_F_TSO |
 			   NETIF_F_TSO6 |
 			   NETIF_F_RXHASH |
-			   NETIF_F_RXCSUM;
+			   NETIF_F_RXCSUM |
+			   NETIF_F_HW_L2FW_DOFFLOAD;
 
 	netdev->hw_features = netdev->features;
 
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
index 1fe7cb0142e1..a8571e488ea4 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
@@ -223,17 +223,19 @@ int ixgbe_disable_sriov(struct ixgbe_adapter *adapter)
 	IXGBE_WRITE_FLUSH(hw);
 
 	/* Disable VMDq flag so device will be set in VM mode */
-	if (adapter->ring_feature[RING_F_VMDQ].limit == 1)
+	if (adapter->ring_feature[RING_F_VMDQ].limit == 1) {
 		adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED;
-	adapter->ring_feature[RING_F_VMDQ].offset = 0;
+		adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
+		rss = min_t(int, IXGBE_MAX_RSS_INDICES, num_online_cpus());
+	} else {
+		rss = min_t(int, IXGBE_MAX_L2A_QUEUES, num_online_cpus());
+	}
 
-	rss = min_t(int, IXGBE_MAX_RSS_INDICES, num_online_cpus());
+	adapter->ring_feature[RING_F_VMDQ].offset = 0;
 	adapter->ring_feature[RING_F_RSS].limit = rss;
 
 	/* take a breather then clean up driver data */
 	msleep(100);
-
-	adapter->flags &= ~IXGBE_FLAG_SRIOV_ENABLED;
 	return 0;
 }
 
@@ -298,13 +300,10 @@ static int ixgbe_pci_sriov_disable(struct pci_dev *dev)
 	err = ixgbe_disable_sriov(adapter);
 
 	/* Only reinit if no error and state changed */
-	if (!err && current_flags != adapter->flags) {
-		/* ixgbe_disable_sriov() doesn't clear VMDQ flag */
-		adapter->flags &= ~IXGBE_FLAG_VMDQ_ENABLED;
 #ifdef CONFIG_PCI_IOV
+	if (!err && current_flags != adapter->flags)
 		ixgbe_sriov_reinit(adapter);
 #endif
-	}
 
 	return err;
 }
-- 
cgit 


From 75a353d4761ae25f5b7676720bab81a8ad2abf0b Mon Sep 17 00:00:00 2001
From: Eyal Perry <eyalpe@mellanox.com>
Date: Thu, 7 Nov 2013 12:19:49 +0200
Subject: net/mlx4_en: Add RFS support in UDP

Modify RFS code to support applying filters for incoming UDP streams.

Signed-off-by: Eyal Perry <eyalpe@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 45 +++++++++++++++++++-------
 1 file changed, 34 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index b5554121aca4..cd61e26f434d 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -102,6 +102,7 @@ struct mlx4_en_filter {
 	struct list_head next;
 	struct work_struct work;
 
+	u8     ip_proto;
 	__be32 src_ip;
 	__be32 dst_ip;
 	__be16 src_port;
@@ -120,14 +121,26 @@ struct mlx4_en_filter {
 
 static void mlx4_en_filter_rfs_expire(struct mlx4_en_priv *priv);
 
+static enum mlx4_net_trans_rule_id mlx4_ip_proto_to_trans_rule_id(u8 ip_proto)
+{
+	switch (ip_proto) {
+	case IPPROTO_UDP:
+		return MLX4_NET_TRANS_RULE_ID_UDP;
+	case IPPROTO_TCP:
+		return MLX4_NET_TRANS_RULE_ID_TCP;
+	default:
+		return -EPROTONOSUPPORT;
+	}
+};
+
 static void mlx4_en_filter_work(struct work_struct *work)
 {
 	struct mlx4_en_filter *filter = container_of(work,
 						     struct mlx4_en_filter,
 						     work);
 	struct mlx4_en_priv *priv = filter->priv;
-	struct mlx4_spec_list spec_tcp = {
-		.id = MLX4_NET_TRANS_RULE_ID_TCP,
+	struct mlx4_spec_list spec_tcp_udp = {
+		.id = mlx4_ip_proto_to_trans_rule_id(filter->ip_proto),
 		{
 			.tcp_udp = {
 				.dst_port = filter->dst_port,
@@ -163,9 +176,14 @@ static void mlx4_en_filter_work(struct work_struct *work)
 	int rc;
 	__be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16);
 
+	if (spec_tcp_udp.id < 0) {
+		en_warn(priv, "RFS: ignoring unsupported ip protocol (%d)\n",
+			filter->ip_proto);
+		goto ignore;
+	}
 	list_add_tail(&spec_eth.list, &rule.list);
 	list_add_tail(&spec_ip.list, &rule.list);
-	list_add_tail(&spec_tcp.list, &rule.list);
+	list_add_tail(&spec_tcp_udp.list, &rule.list);
 
 	rule.qpn = priv->rss_map.qps[filter->rxq_index].qpn;
 	memcpy(spec_eth.eth.dst_mac, priv->dev->dev_addr, ETH_ALEN);
@@ -183,6 +201,7 @@ static void mlx4_en_filter_work(struct work_struct *work)
 	if (rc)
 		en_err(priv, "Error attaching flow. err = %d\n", rc);
 
+ignore:
 	mlx4_en_filter_rfs_expire(priv);
 
 	filter->activated = 1;
@@ -206,8 +225,8 @@ filter_hash_bucket(struct mlx4_en_priv *priv, __be32 src_ip, __be32 dst_ip,
 
 static struct mlx4_en_filter *
 mlx4_en_filter_alloc(struct mlx4_en_priv *priv, int rxq_index, __be32 src_ip,
-		     __be32 dst_ip, __be16 src_port, __be16 dst_port,
-		     u32 flow_id)
+		     __be32 dst_ip, u8 ip_proto, __be16 src_port,
+		     __be16 dst_port, u32 flow_id)
 {
 	struct mlx4_en_filter *filter = NULL;
 
@@ -221,6 +240,7 @@ mlx4_en_filter_alloc(struct mlx4_en_priv *priv, int rxq_index, __be32 src_ip,
 
 	filter->src_ip = src_ip;
 	filter->dst_ip = dst_ip;
+	filter->ip_proto = ip_proto;
 	filter->src_port = src_port;
 	filter->dst_port = dst_port;
 
@@ -252,7 +272,7 @@ static void mlx4_en_filter_free(struct mlx4_en_filter *filter)
 
 static inline struct mlx4_en_filter *
 mlx4_en_filter_find(struct mlx4_en_priv *priv, __be32 src_ip, __be32 dst_ip,
-		    __be16 src_port, __be16 dst_port)
+		    u8 ip_proto, __be16 src_port, __be16 dst_port)
 {
 	struct mlx4_en_filter *filter;
 	struct mlx4_en_filter *ret = NULL;
@@ -263,6 +283,7 @@ mlx4_en_filter_find(struct mlx4_en_priv *priv, __be32 src_ip, __be32 dst_ip,
 			     filter_chain) {
 		if (filter->src_ip == src_ip &&
 		    filter->dst_ip == dst_ip &&
+		    filter->ip_proto == ip_proto &&
 		    filter->src_port == src_port &&
 		    filter->dst_port == dst_port) {
 			ret = filter;
@@ -281,6 +302,7 @@ mlx4_en_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
 	struct mlx4_en_filter *filter;
 	const struct iphdr *ip;
 	const __be16 *ports;
+	u8 ip_proto;
 	__be32 src_ip;
 	__be32 dst_ip;
 	__be16 src_port;
@@ -295,18 +317,19 @@ mlx4_en_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
 	if (ip_is_fragment(ip))
 		return -EPROTONOSUPPORT;
 
+	if ((ip->protocol != IPPROTO_TCP) && (ip->protocol != IPPROTO_UDP))
+		return -EPROTONOSUPPORT;
 	ports = (const __be16 *)(skb->data + nhoff + 4 * ip->ihl);
 
+	ip_proto = ip->protocol;
 	src_ip = ip->saddr;
 	dst_ip = ip->daddr;
 	src_port = ports[0];
 	dst_port = ports[1];
 
-	if (ip->protocol != IPPROTO_TCP)
-		return -EPROTONOSUPPORT;
-
 	spin_lock_bh(&priv->filters_lock);
-	filter = mlx4_en_filter_find(priv, src_ip, dst_ip, src_port, dst_port);
+	filter = mlx4_en_filter_find(priv, src_ip, dst_ip, ip_proto,
+				     src_port, dst_port);
 	if (filter) {
 		if (filter->rxq_index == rxq_index)
 			goto out;
@@ -314,7 +337,7 @@ mlx4_en_filter_rfs(struct net_device *net_dev, const struct sk_buff *skb,
 		filter->rxq_index = rxq_index;
 	} else {
 		filter = mlx4_en_filter_alloc(priv, rxq_index,
-					      src_ip, dst_ip,
+					      src_ip, dst_ip, ip_proto,
 					      src_port, dst_port, flow_id);
 		if (!filter) {
 			ret = -ENOMEM;
-- 
cgit 


From 571b8b92c7d4cddd899cf19f11f14fb149968898 Mon Sep 17 00:00:00 2001
From: Jack Morgenstein <jackm@dev.mellanox.co.il>
Date: Thu, 7 Nov 2013 12:19:50 +0200
Subject: net/mlx4_core: Initialize all mailbox buffers to zero before use

To guarantee that all unused fields in all FW commands for both inboxes
and outboxes are zeroed out, initialize the mailbox buffer to all zeroes.

This is especially important for SRIOV comm-channel virtual commands
(such as QUERY_FUNC_CAP), where if new fields are added to support new
features, the driver can depend on older kernels passing zeroes in these
fields.

In addition to zeroing out the mailbox buffer at allocation time, all
(now unnecessary) calls to memset by the callers of
mlx4_alloc_cmd_mailbox() are removed.

Signed-off-by: Majd Dibbiny <majd@mellanox.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/infiniband/hw/mlx4/main.c            |  6 ------
 drivers/net/ethernet/mellanox/mlx4/cmd.c     |  2 ++
 drivers/net/ethernet/mellanox/mlx4/cq.c      |  6 ------
 drivers/net/ethernet/mellanox/mlx4/en_port.c |  3 ---
 drivers/net/ethernet/mellanox/mlx4/eq.c      |  1 -
 drivers/net/ethernet/mellanox/mlx4/fw.c      |  7 -------
 drivers/net/ethernet/mellanox/mlx4/mcg.c     |  2 --
 drivers/net/ethernet/mellanox/mlx4/mr.c      |  5 -----
 drivers/net/ethernet/mellanox/mlx4/port.c    | 11 -----------
 drivers/net/ethernet/mellanox/mlx4/srq.c     |  2 --
 10 files changed, 2 insertions(+), 43 deletions(-)

diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 7567437dbd34..6a0a0d29660d 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -526,7 +526,6 @@ static int mlx4_ib_modify_device(struct ib_device *ibdev, int mask,
 	if (IS_ERR(mailbox))
 		return 0;
 
-	memset(mailbox->buf, 0, 256);
 	memcpy(mailbox->buf, props->node_desc, 64);
 	mlx4_cmd(to_mdev(ibdev)->dev, mailbox->dma, 1, 0,
 		 MLX4_CMD_SET_NODE, MLX4_CMD_TIME_CLASS_A, MLX4_CMD_NATIVE);
@@ -547,8 +546,6 @@ static int mlx4_SET_PORT(struct mlx4_ib_dev *dev, u8 port, int reset_qkey_viols,
 	if (IS_ERR(mailbox))
 		return PTR_ERR(mailbox);
 
-	memset(mailbox->buf, 0, 256);
-
 	if (dev->dev->flags & MLX4_FLAG_OLD_PORT_CMDS) {
 		*(u8 *) mailbox->buf	     = !!reset_qkey_viols << 6;
 		((__be32 *) mailbox->buf)[2] = cpu_to_be32(cap_mask);
@@ -879,8 +876,6 @@ static int __mlx4_ib_create_flow(struct ib_qp *qp, struct ib_flow_attr *flow_att
 	struct mlx4_ib_dev *mdev = to_mdev(qp->device);
 	struct mlx4_cmd_mailbox *mailbox;
 	struct mlx4_net_trans_rule_hw_ctrl *ctrl;
-	size_t rule_size = sizeof(struct mlx4_net_trans_rule_hw_ctrl) +
-			   (sizeof(struct _rule_hw) * flow_attr->num_of_specs);
 
 	static const u16 __mlx4_domain[] = {
 		[IB_FLOW_DOMAIN_USER] = MLX4_DOMAIN_UVERBS,
@@ -905,7 +900,6 @@ static int __mlx4_ib_create_flow(struct ib_qp *qp, struct ib_flow_attr *flow_att
 	mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
 	if (IS_ERR(mailbox))
 		return PTR_ERR(mailbox);
-	memset(mailbox->buf, 0, rule_size);
 	ctrl = mailbox->buf;
 
 	ctrl->prio = cpu_to_be16(__mlx4_domain[domain] |
diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index 65d41b76fa2c..7207dcd05759 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -2199,6 +2199,8 @@ struct mlx4_cmd_mailbox *mlx4_alloc_cmd_mailbox(struct mlx4_dev *dev)
 		return ERR_PTR(-ENOMEM);
 	}
 
+	memset(mailbox->buf, 0, MLX4_MAILBOX_SIZE);
+
 	return mailbox;
 }
 EXPORT_SYMBOL_GPL(mlx4_alloc_cmd_mailbox);
diff --git a/drivers/net/ethernet/mellanox/mlx4/cq.c b/drivers/net/ethernet/mellanox/mlx4/cq.c
index 004e4231af67..22fcbe78311c 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cq.c
@@ -128,8 +128,6 @@ int mlx4_cq_modify(struct mlx4_dev *dev, struct mlx4_cq *cq,
 		return PTR_ERR(mailbox);
 
 	cq_context = mailbox->buf;
-	memset(cq_context, 0, sizeof *cq_context);
-
 	cq_context->cq_max_count = cpu_to_be16(count);
 	cq_context->cq_period    = cpu_to_be16(period);
 
@@ -153,8 +151,6 @@ int mlx4_cq_resize(struct mlx4_dev *dev, struct mlx4_cq *cq,
 		return PTR_ERR(mailbox);
 
 	cq_context = mailbox->buf;
-	memset(cq_context, 0, sizeof *cq_context);
-
 	cq_context->logsize_usrpage = cpu_to_be32(ilog2(entries) << 24);
 	cq_context->log_page_size   = mtt->page_shift - 12;
 	mtt_addr = mlx4_mtt_addr(dev, mtt);
@@ -274,8 +270,6 @@ int mlx4_cq_alloc(struct mlx4_dev *dev, int nent,
 	}
 
 	cq_context = mailbox->buf;
-	memset(cq_context, 0, sizeof *cq_context);
-
 	cq_context->flags	    = cpu_to_be32(!!collapsed << 18);
 	if (timestamp_en)
 		cq_context->flags  |= cpu_to_be32(1 << 19);
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_port.c b/drivers/net/ethernet/mellanox/mlx4/en_port.c
index 331791467a22..5f8535e408a3 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_port.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_port.c
@@ -56,7 +56,6 @@ int mlx4_SET_VLAN_FLTR(struct mlx4_dev *dev, struct mlx4_en_priv *priv)
 		return PTR_ERR(mailbox);
 
 	filter = mailbox->buf;
-	memset(filter, 0, sizeof(*filter));
 	for (i = VLAN_FLTR_SIZE - 1; i >= 0; i--) {
 		entry = 0;
 		for (j = 0; j < 32; j++)
@@ -81,7 +80,6 @@ int mlx4_en_QUERY_PORT(struct mlx4_en_dev *mdev, u8 port)
 	mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
 	if (IS_ERR(mailbox))
 		return PTR_ERR(mailbox);
-	memset(mailbox->buf, 0, sizeof(*qport_context));
 	err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, port, 0,
 			   MLX4_CMD_QUERY_PORT, MLX4_CMD_TIME_CLASS_B,
 			   MLX4_CMD_WRAPPED);
@@ -127,7 +125,6 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
 	mailbox = mlx4_alloc_cmd_mailbox(mdev->dev);
 	if (IS_ERR(mailbox))
 		return PTR_ERR(mailbox);
-	memset(mailbox->buf, 0, sizeof(*mlx4_en_stats));
 	err = mlx4_cmd_box(mdev->dev, 0, mailbox->dma, in_mod, 0,
 			   MLX4_CMD_DUMP_ETH_STATS, MLX4_CMD_TIME_CLASS_B,
 			   MLX4_CMD_WRAPPED);
diff --git a/drivers/net/ethernet/mellanox/mlx4/eq.c b/drivers/net/ethernet/mellanox/mlx4/eq.c
index 0416c5b3b35c..c9cdb2a2c596 100644
--- a/drivers/net/ethernet/mellanox/mlx4/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/eq.c
@@ -936,7 +936,6 @@ static int mlx4_create_eq(struct mlx4_dev *dev, int nent,
 	if (err)
 		goto err_out_free_mtt;
 
-	memset(eq_context, 0, sizeof *eq_context);
 	eq_context->flags	  = cpu_to_be32(MLX4_EQ_STATUS_OK   |
 						MLX4_EQ_STATE_ARMED);
 	eq_context->log_eq_size	  = ilog2(eq->nent);
diff --git a/drivers/net/ethernet/mellanox/mlx4/fw.c b/drivers/net/ethernet/mellanox/mlx4/fw.c
index c3e70bc2d875..fda26679f7d5 100644
--- a/drivers/net/ethernet/mellanox/mlx4/fw.c
+++ b/drivers/net/ethernet/mellanox/mlx4/fw.c
@@ -159,8 +159,6 @@ int mlx4_MOD_STAT_CFG(struct mlx4_dev *dev, struct mlx4_mod_stat_cfg *cfg)
 		return PTR_ERR(mailbox);
 	inbox = mailbox->buf;
 
-	memset(inbox, 0, MOD_STAT_CFG_IN_SIZE);
-
 	MLX4_PUT(inbox, cfg->log_pg_sz, MOD_STAT_CFG_PG_SZ_OFFSET);
 	MLX4_PUT(inbox, cfg->log_pg_sz_m, MOD_STAT_CFG_PG_SZ_M_OFFSET);
 
@@ -967,7 +965,6 @@ int mlx4_map_cmd(struct mlx4_dev *dev, u16 op, struct mlx4_icm *icm, u64 virt)
 	mailbox = mlx4_alloc_cmd_mailbox(dev);
 	if (IS_ERR(mailbox))
 		return PTR_ERR(mailbox);
-	memset(mailbox->buf, 0, MLX4_MAILBOX_SIZE);
 	pages = mailbox->buf;
 
 	for (mlx4_icm_first(icm, &iter);
@@ -1316,8 +1313,6 @@ int mlx4_INIT_HCA(struct mlx4_dev *dev, struct mlx4_init_hca_param *param)
 		return PTR_ERR(mailbox);
 	inbox = mailbox->buf;
 
-	memset(inbox, 0, INIT_HCA_IN_SIZE);
-
 	*((u8 *) mailbox->buf + INIT_HCA_VERSION_OFFSET) = INIT_HCA_VERSION;
 
 	*((u8 *) mailbox->buf + INIT_HCA_CACHELINE_SZ_OFFSET) =
@@ -1616,8 +1611,6 @@ int mlx4_INIT_PORT(struct mlx4_dev *dev, int port)
 			return PTR_ERR(mailbox);
 		inbox = mailbox->buf;
 
-		memset(inbox, 0, INIT_PORT_IN_SIZE);
-
 		flags = 0;
 		flags |= (dev->caps.vl_cap[port] & 0xf) << INIT_PORT_VL_SHIFT;
 		flags |= (dev->caps.port_width_cap[port] & 0xf) << INIT_PORT_PORT_WIDTH_SHIFT;
diff --git a/drivers/net/ethernet/mellanox/mlx4/mcg.c b/drivers/net/ethernet/mellanox/mlx4/mcg.c
index 70f0213d68c4..acf9d5f1f922 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mcg.c
+++ b/drivers/net/ethernet/mellanox/mlx4/mcg.c
@@ -506,7 +506,6 @@ static int remove_promisc_qp(struct mlx4_dev *dev, u8 port,
 		goto out_list;
 	}
 	mgm = mailbox->buf;
-	memset(mgm, 0, sizeof *mgm);
 	members_count = 0;
 	list_for_each_entry(dqp, &s_steer->promisc_qps[steer], list)
 		mgm->qp[members_count++] = cpu_to_be32(dqp->qpn & MGM_QPN_MASK);
@@ -857,7 +856,6 @@ int mlx4_flow_attach(struct mlx4_dev *dev,
 	if (IS_ERR(mailbox))
 		return PTR_ERR(mailbox);
 
-	memset(mailbox->buf, 0, sizeof(struct mlx4_net_trans_rule_hw_ctrl));
 	trans_rule_ctrl_to_hw(rule, mailbox->buf);
 
 	size += sizeof(struct mlx4_net_trans_rule_hw_ctrl);
diff --git a/drivers/net/ethernet/mellanox/mlx4/mr.c b/drivers/net/ethernet/mellanox/mlx4/mr.c
index 63391a1a7f8c..b3ee9bafff5e 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mr.c
+++ b/drivers/net/ethernet/mellanox/mlx4/mr.c
@@ -480,9 +480,6 @@ int mlx4_mr_enable(struct mlx4_dev *dev, struct mlx4_mr *mr)
 		goto err_table;
 	}
 	mpt_entry = mailbox->buf;
-
-	memset(mpt_entry, 0, sizeof *mpt_entry);
-
 	mpt_entry->flags = cpu_to_be32(MLX4_MPT_FLAG_MIO	 |
 				       MLX4_MPT_FLAG_REGION	 |
 				       mr->access);
@@ -695,8 +692,6 @@ int mlx4_mw_enable(struct mlx4_dev *dev, struct mlx4_mw *mw)
 	}
 	mpt_entry = mailbox->buf;
 
-	memset(mpt_entry, 0, sizeof(*mpt_entry));
-
 	/* Note that the MLX4_MPT_FLAG_REGION bit in mpt_entry->flags is turned
 	 * off, thus creating a memory window and not a memory region.
 	 */
diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c b/drivers/net/ethernet/mellanox/mlx4/port.c
index caaa15470395..97d342fa5032 100644
--- a/drivers/net/ethernet/mellanox/mlx4/port.c
+++ b/drivers/net/ethernet/mellanox/mlx4/port.c
@@ -469,8 +469,6 @@ int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps)
 
 	inbuf = inmailbox->buf;
 	outbuf = outmailbox->buf;
-	memset(inbuf, 0, 256);
-	memset(outbuf, 0, 256);
 	inbuf[0] = 1;
 	inbuf[1] = 1;
 	inbuf[2] = 1;
@@ -653,8 +651,6 @@ int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port, int pkey_tbl_sz)
 	if (IS_ERR(mailbox))
 		return PTR_ERR(mailbox);
 
-	memset(mailbox->buf, 0, 256);
-
 	((__be32 *) mailbox->buf)[1] = dev->caps.ib_port_def_cap[port];
 
 	if (pkey_tbl_sz >= 0 && mlx4_is_master(dev)) {
@@ -692,8 +688,6 @@ int mlx4_SET_PORT_general(struct mlx4_dev *dev, u8 port, int mtu,
 	if (IS_ERR(mailbox))
 		return PTR_ERR(mailbox);
 	context = mailbox->buf;
-	memset(context, 0, sizeof *context);
-
 	context->flags = SET_PORT_GEN_ALL_VALID;
 	context->mtu = cpu_to_be16(mtu);
 	context->pptx = (pptx * (!pfctx)) << 7;
@@ -727,8 +721,6 @@ int mlx4_SET_PORT_qpn_calc(struct mlx4_dev *dev, u8 port, u32 base_qpn,
 	if (IS_ERR(mailbox))
 		return PTR_ERR(mailbox);
 	context = mailbox->buf;
-	memset(context, 0, sizeof *context);
-
 	context->base_qpn = cpu_to_be32(base_qpn);
 	context->n_mac = dev->caps.log_num_macs;
 	context->promisc = cpu_to_be32(promisc << SET_PORT_PROMISC_SHIFT |
@@ -761,8 +753,6 @@ int mlx4_SET_PORT_PRIO2TC(struct mlx4_dev *dev, u8 port, u8 *prio2tc)
 	if (IS_ERR(mailbox))
 		return PTR_ERR(mailbox);
 	context = mailbox->buf;
-	memset(context, 0, sizeof *context);
-
 	for (i = 0; i < MLX4_NUM_UP; i += 2)
 		context->prio2tc[i >> 1] = prio2tc[i] << 4 | prio2tc[i + 1];
 
@@ -788,7 +778,6 @@ int mlx4_SET_PORT_SCHEDULER(struct mlx4_dev *dev, u8 port, u8 *tc_tx_bw,
 	if (IS_ERR(mailbox))
 		return PTR_ERR(mailbox);
 	context = mailbox->buf;
-	memset(context, 0, sizeof *context);
 
 	for (i = 0; i < MLX4_NUM_TC; i++) {
 		struct mlx4_port_scheduler_tc_cfg_be *tc = &context->tc[i];
diff --git a/drivers/net/ethernet/mellanox/mlx4/srq.c b/drivers/net/ethernet/mellanox/mlx4/srq.c
index 9e08e35ce351..8fdf23753779 100644
--- a/drivers/net/ethernet/mellanox/mlx4/srq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/srq.c
@@ -189,8 +189,6 @@ int mlx4_srq_alloc(struct mlx4_dev *dev, u32 pdn, u32 cqn, u16 xrcd,
 	}
 
 	srq_context = mailbox->buf;
-	memset(srq_context, 0, sizeof *srq_context);
-
 	srq_context->state_logsize_srqn = cpu_to_be32((ilog2(srq->max) << 24) |
 						      srq->srqn);
 	srq_context->logstride          = srq->wqe_shift - 4;
-- 
cgit 


From f0f829bf42cdeb027234a1d0e1e5f62d77380a4d Mon Sep 17 00:00:00 2001
From: Rony Efraim <ronye@mellanox.com>
Date: Thu, 7 Nov 2013 12:19:51 +0200
Subject: net/mlx4_core: Add immediate activate for VGT->VST->VGT

Allow immediate activate of VGT->VST and VST->VGT transitions, without
the need of rebinding in mlx4_master_immediate_activate_vlan_qos().

Also in struct res_qp: add qp parameters (vlan_index,fvl,vlan_cntrol..)
to the saved set, in order to restore when move to VGT.
 - Clear at mlx4_RST2INIT_QP_wrapper()
 - Save at mlx4_INIT2RTR_QP_wrapper()
 - Restore at mlx4_vf_immed_vlan_work_handler()

Update mlx4_vf_immed_vlan_work_handler() to support VGT.

Signed-off-by: Rony Efraim <ronye@mellanox.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Reviewed-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/cmd.c           | 34 ++++------
 .../net/ethernet/mellanox/mlx4/resource_tracker.c  | 79 ++++++++++++++++++----
 2 files changed, 81 insertions(+), 32 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c
index 7207dcd05759..1e9970d2f0f3 100644
--- a/drivers/net/ethernet/mellanox/mlx4/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c
@@ -1539,11 +1539,6 @@ out:
 	return ret;
 }
 
-static int calculate_transition(u16 oper_vlan, u16 admin_vlan)
-{
-	return (2 * (oper_vlan == MLX4_VGT) + (admin_vlan == MLX4_VGT));
-}
-
 static int mlx4_master_immediate_activate_vlan_qos(struct mlx4_priv *priv,
 					    int slave, int port)
 {
@@ -1553,7 +1548,6 @@ static int mlx4_master_immediate_activate_vlan_qos(struct mlx4_priv *priv,
 	struct mlx4_dev *dev = &(priv->dev);
 	int err;
 	int admin_vlan_ix = NO_INDX;
-	enum mlx4_vlan_transition vlan_trans;
 
 	vp_oper = &priv->mfunc.master.vf_oper[slave].vport[port];
 	vp_admin = &priv->mfunc.master.vf_admin[slave].vport[port];
@@ -1563,12 +1557,8 @@ static int mlx4_master_immediate_activate_vlan_qos(struct mlx4_priv *priv,
 	    vp_oper->state.link_state == vp_admin->link_state)
 		return 0;
 
-	vlan_trans = calculate_transition(vp_oper->state.default_vlan,
-					  vp_admin->default_vlan);
-
 	if (!(priv->mfunc.master.slave_state[slave].active &&
-	      dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP &&
-	      vlan_trans == MLX4_VLAN_TRANSITION_VST_VST)) {
+	      dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_UPDATE_QP)) {
 		/* even if the UPDATE_QP command isn't supported, we still want
 		 * to set this VF link according to the admin directive
 		 */
@@ -1586,15 +1576,19 @@ static int mlx4_master_immediate_activate_vlan_qos(struct mlx4_priv *priv,
 		return -ENOMEM;
 
 	if (vp_oper->state.default_vlan != vp_admin->default_vlan) {
-		err = __mlx4_register_vlan(&priv->dev, port,
-					   vp_admin->default_vlan,
-					   &admin_vlan_ix);
-		if (err) {
-			kfree(work);
-			mlx4_warn((&priv->dev),
-				  "No vlan resources slave %d, port %d\n",
-				  slave, port);
-			return err;
+		if (MLX4_VGT != vp_admin->default_vlan) {
+			err = __mlx4_register_vlan(&priv->dev, port,
+						   vp_admin->default_vlan,
+						   &admin_vlan_ix);
+			if (err) {
+				kfree(work);
+				mlx4_warn((&priv->dev),
+					  "No vlan resources slave %d, port %d\n",
+					  slave, port);
+				return err;
+			}
+		} else {
+			admin_vlan_ix = NO_INDX;
 		}
 		work->flags |= MLX4_VF_IMMED_VLAN_FLAG_VLAN;
 		mlx4_dbg((&(priv->dev)),
diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
index b1603e2287a7..2f3f2bc7f283 100644
--- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
+++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c
@@ -110,7 +110,14 @@ struct res_qp {
 	int			local_qpn;
 	atomic_t		ref_count;
 	u32			qpc_flags;
+	/* saved qp params before VST enforcement in order to restore on VGT */
 	u8			sched_queue;
+	__be32			param3;
+	u8			vlan_control;
+	u8			fvl_rx;
+	u8			pri_path_fl;
+	u8			vlan_index;
+	u8			feup;
 };
 
 enum res_mtt_states {
@@ -2568,6 +2575,12 @@ int mlx4_RST2INIT_QP_wrapper(struct mlx4_dev *dev, int slave,
 		return err;
 	qp->local_qpn = local_qpn;
 	qp->sched_queue = 0;
+	qp->param3 = 0;
+	qp->vlan_control = 0;
+	qp->fvl_rx = 0;
+	qp->pri_path_fl = 0;
+	qp->vlan_index = 0;
+	qp->feup = 0;
 	qp->qpc_flags = be32_to_cpu(qpc->flags);
 
 	err = get_res(dev, slave, mtt_base, RES_MTT, &mtt);
@@ -3294,6 +3307,12 @@ int mlx4_INIT2RTR_QP_wrapper(struct mlx4_dev *dev, int slave,
 	int qpn = vhcr->in_modifier & 0x7fffff;
 	struct res_qp *qp;
 	u8 orig_sched_queue;
+	__be32	orig_param3 = qpc->param3;
+	u8 orig_vlan_control = qpc->pri_path.vlan_control;
+	u8 orig_fvl_rx = qpc->pri_path.fvl_rx;
+	u8 orig_pri_path_fl = qpc->pri_path.fl;
+	u8 orig_vlan_index = qpc->pri_path.vlan_index;
+	u8 orig_feup = qpc->pri_path.feup;
 
 	err = verify_qp_parameters(dev, inbox, QP_TRANS_INIT2RTR, slave);
 	if (err)
@@ -3321,9 +3340,15 @@ out:
 	 * essentially the QOS value provided by the VF. This will be useful
 	 * if we allow dynamic changes from VST back to VGT
 	 */
-	if (!err)
+	if (!err) {
 		qp->sched_queue = orig_sched_queue;
-
+		qp->param3	= orig_param3;
+		qp->vlan_control = orig_vlan_control;
+		qp->fvl_rx	=  orig_fvl_rx;
+		qp->pri_path_fl = orig_pri_path_fl;
+		qp->vlan_index  = orig_vlan_index;
+		qp->feup	= orig_feup;
+	}
 	put_res(dev, slave, qpn, RES_QP);
 	return err;
 }
@@ -4437,13 +4462,20 @@ void mlx4_vf_immed_vlan_work_handler(struct work_struct *_work)
 		&tracker->slave_list[work->slave].res_list[RES_QP];
 	struct res_qp *qp;
 	struct res_qp *tmp;
-	u64 qp_mask = ((1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_UNTAGGED) |
+	u64 qp_path_mask_vlan_ctrl =
+		       ((1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_UNTAGGED) |
 		       (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_1P) |
 		       (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_TX_BLOCK_TAGGED) |
 		       (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_UNTAGGED) |
 		       (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_1P) |
-		       (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_TAGGED) |
-		       (1ULL << MLX4_UPD_QP_PATH_MASK_VLAN_INDEX) |
+		       (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_RX_BLOCK_TAGGED));
+
+	u64 qp_path_mask = ((1ULL << MLX4_UPD_QP_PATH_MASK_VLAN_INDEX) |
+		       (1ULL << MLX4_UPD_QP_PATH_MASK_FVL) |
+		       (1ULL << MLX4_UPD_QP_PATH_MASK_CV) |
+		       (1ULL << MLX4_UPD_QP_PATH_MASK_ETH_HIDE_CQE_VLAN) |
+		       (1ULL << MLX4_UPD_QP_PATH_MASK_FEUP) |
+		       (1ULL << MLX4_UPD_QP_PATH_MASK_FVL_RX) |
 		       (1ULL << MLX4_UPD_QP_PATH_MASK_SCHED_QUEUE));
 
 	int err;
@@ -4475,9 +4507,7 @@ void mlx4_vf_immed_vlan_work_handler(struct work_struct *_work)
 			MLX4_VLAN_CTRL_ETH_RX_BLOCK_UNTAGGED;
 
 	upd_context = mailbox->buf;
-	upd_context->primary_addr_path_mask = cpu_to_be64(qp_mask);
-	upd_context->qp_context.pri_path.vlan_control = vlan_control;
-	upd_context->qp_context.pri_path.vlan_index = work->vlan_ix;
+	upd_context->qp_mask = cpu_to_be64(MLX4_UPD_QP_MASK_VSD);
 
 	spin_lock_irq(mlx4_tlock(dev));
 	list_for_each_entry_safe(qp, tmp, qp_list, com.list) {
@@ -4495,10 +4525,35 @@ void mlx4_vf_immed_vlan_work_handler(struct work_struct *_work)
 				spin_lock_irq(mlx4_tlock(dev));
 				continue;
 			}
-			upd_context->qp_context.pri_path.sched_queue =
-				qp->sched_queue & 0xC7;
-			upd_context->qp_context.pri_path.sched_queue |=
-				((work->qos & 0x7) << 3);
+			if (MLX4_QP_ST_RC == ((qp->qpc_flags >> 16) & 0xff))
+				upd_context->primary_addr_path_mask = cpu_to_be64(qp_path_mask);
+			else
+				upd_context->primary_addr_path_mask =
+					cpu_to_be64(qp_path_mask | qp_path_mask_vlan_ctrl);
+			if (work->vlan_id == MLX4_VGT) {
+				upd_context->qp_context.param3 = qp->param3;
+				upd_context->qp_context.pri_path.vlan_control = qp->vlan_control;
+				upd_context->qp_context.pri_path.fvl_rx = qp->fvl_rx;
+				upd_context->qp_context.pri_path.vlan_index = qp->vlan_index;
+				upd_context->qp_context.pri_path.fl = qp->pri_path_fl;
+				upd_context->qp_context.pri_path.feup = qp->feup;
+				upd_context->qp_context.pri_path.sched_queue =
+					qp->sched_queue;
+			} else {
+				upd_context->qp_context.param3 = qp->param3 & ~cpu_to_be32(MLX4_STRIP_VLAN);
+				upd_context->qp_context.pri_path.vlan_control = vlan_control;
+				upd_context->qp_context.pri_path.vlan_index = work->vlan_ix;
+				upd_context->qp_context.pri_path.fvl_rx =
+					qp->fvl_rx | MLX4_FVL_RX_FORCE_ETH_VLAN;
+				upd_context->qp_context.pri_path.fl =
+					qp->pri_path_fl | MLX4_FL_CV | MLX4_FL_ETH_HIDE_CQE_VLAN;
+				upd_context->qp_context.pri_path.feup =
+					qp->feup | MLX4_FEUP_FORCE_ETH_UP | MLX4_FVL_FORCE_ETH_VLAN;
+				upd_context->qp_context.pri_path.sched_queue =
+					qp->sched_queue & 0xC7;
+				upd_context->qp_context.pri_path.sched_queue |=
+					((work->qos & 0x7) << 3);
+			}
 
 			err = mlx4_cmd(dev, mailbox->dma,
 				       qp->local_qpn & 0xffffff,
-- 
cgit 


From 41d942d56cfd21058fba465804e14ba349541442 Mon Sep 17 00:00:00 2001
From: Eugenia Emantayev <eugenia@mellanox.com>
Date: Thu, 7 Nov 2013 12:19:52 +0200
Subject: net/mlx4_en: Datapath resources allocated dynamically

Currently all TX/RX rings and completion queues are part of the
netdev priv structure and are allocated statically. This patch
will change the priv to hold only arrays of pointers and therefore
all TX/RX rings and completetion queues will be allocated
dynamically. This is in preparation for NUMA aware allocations.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.com>
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Reviewed-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/en_cq.c       | 34 ++++++---
 drivers/net/ethernet/mellanox/mlx4/en_ethtool.c  | 36 +++++-----
 drivers/net/ethernet/mellanox/mlx4/en_netdev.c   | 87 ++++++++++++++----------
 drivers/net/ethernet/mellanox/mlx4/en_port.c     | 14 ++--
 drivers/net/ethernet/mellanox/mlx4/en_rx.c       | 57 ++++++++++------
 drivers/net/ethernet/mellanox/mlx4/en_selftest.c |  2 +-
 drivers/net/ethernet/mellanox/mlx4/en_tx.c       | 32 ++++++---
 drivers/net/ethernet/mellanox/mlx4/mlx4_en.h     | 27 ++++----
 8 files changed, 178 insertions(+), 111 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_cq.c b/drivers/net/ethernet/mellanox/mlx4/en_cq.c
index 3e2d5047cdb3..d203f11b9edf 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_cq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_cq.c
@@ -44,12 +44,19 @@ static void mlx4_en_cq_event(struct mlx4_cq *cq, enum mlx4_event event)
 
 
 int mlx4_en_create_cq(struct mlx4_en_priv *priv,
-		      struct mlx4_en_cq *cq,
+		      struct mlx4_en_cq **pcq,
 		      int entries, int ring, enum cq_type mode)
 {
 	struct mlx4_en_dev *mdev = priv->mdev;
+	struct mlx4_en_cq *cq;
 	int err;
 
+	cq = kzalloc(sizeof(*cq), GFP_KERNEL);
+	if (!cq) {
+		en_err(priv, "Failed to allocate CQ structure\n");
+		return -ENOMEM;
+	}
+
 	cq->size = entries;
 	cq->buf_size = cq->size * mdev->dev->caps.cqe_size;
 
@@ -60,14 +67,22 @@ int mlx4_en_create_cq(struct mlx4_en_priv *priv,
 	err = mlx4_alloc_hwq_res(mdev->dev, &cq->wqres,
 				cq->buf_size, 2 * PAGE_SIZE);
 	if (err)
-		return err;
+		goto err_cq;
 
 	err = mlx4_en_map_buffer(&cq->wqres.buf);
 	if (err)
-		mlx4_free_hwq_res(mdev->dev, &cq->wqres, cq->buf_size);
-	else
-		cq->buf = (struct mlx4_cqe *) cq->wqres.buf.direct.buf;
+		goto err_res;
+
+	cq->buf = (struct mlx4_cqe *)cq->wqres.buf.direct.buf;
+	*pcq = cq;
 
+	return 0;
+
+err_res:
+	mlx4_free_hwq_res(mdev->dev, &cq->wqres, cq->buf_size);
+err_cq:
+	kfree(cq);
+	*pcq = NULL;
 	return err;
 }
 
@@ -117,12 +132,12 @@ int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
 		struct mlx4_en_cq *rx_cq;
 
 		cq_idx = cq_idx % priv->rx_ring_num;
-		rx_cq = &priv->rx_cq[cq_idx];
+		rx_cq = priv->rx_cq[cq_idx];
 		cq->vector = rx_cq->vector;
 	}
 
 	if (!cq->is_tx)
-		cq->size = priv->rx_ring[cq->ring].actual_size;
+		cq->size = priv->rx_ring[cq->ring]->actual_size;
 
 	if ((cq->is_tx && priv->hwtstamp_config.tx_type) ||
 	    (!cq->is_tx && priv->hwtstamp_config.rx_filter))
@@ -146,9 +161,10 @@ int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
 	return 0;
 }
 
-void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
+void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq **pcq)
 {
 	struct mlx4_en_dev *mdev = priv->mdev;
+	struct mlx4_en_cq *cq = *pcq;
 
 	mlx4_en_unmap_buffer(&cq->wqres.buf);
 	mlx4_free_hwq_res(mdev->dev, &cq->wqres, cq->buf_size);
@@ -157,6 +173,8 @@ void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
 	cq->vector = 0;
 	cq->buf_size = 0;
 	cq->buf = NULL;
+	kfree(cq);
+	*pcq = NULL;
 }
 
 void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq)
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
index 0c750985f47e..0596f9f85a0e 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_ethtool.c
@@ -51,10 +51,10 @@ static int mlx4_en_moderation_update(struct mlx4_en_priv *priv)
 	int err = 0;
 
 	for (i = 0; i < priv->tx_ring_num; i++) {
-		priv->tx_cq[i].moder_cnt = priv->tx_frames;
-		priv->tx_cq[i].moder_time = priv->tx_usecs;
+		priv->tx_cq[i]->moder_cnt = priv->tx_frames;
+		priv->tx_cq[i]->moder_time = priv->tx_usecs;
 		if (priv->port_up) {
-			err = mlx4_en_set_cq_moder(priv, &priv->tx_cq[i]);
+			err = mlx4_en_set_cq_moder(priv, priv->tx_cq[i]);
 			if (err)
 				return err;
 		}
@@ -64,11 +64,11 @@ static int mlx4_en_moderation_update(struct mlx4_en_priv *priv)
 		return 0;
 
 	for (i = 0; i < priv->rx_ring_num; i++) {
-		priv->rx_cq[i].moder_cnt = priv->rx_frames;
-		priv->rx_cq[i].moder_time = priv->rx_usecs;
+		priv->rx_cq[i]->moder_cnt = priv->rx_frames;
+		priv->rx_cq[i]->moder_time = priv->rx_usecs;
 		priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
 		if (priv->port_up) {
-			err = mlx4_en_set_cq_moder(priv, &priv->rx_cq[i]);
+			err = mlx4_en_set_cq_moder(priv, priv->rx_cq[i]);
 			if (err)
 				return err;
 		}
@@ -274,16 +274,16 @@ static void mlx4_en_get_ethtool_stats(struct net_device *dev,
 		}
 	}
 	for (i = 0; i < priv->tx_ring_num; i++) {
-		data[index++] = priv->tx_ring[i].packets;
-		data[index++] = priv->tx_ring[i].bytes;
+		data[index++] = priv->tx_ring[i]->packets;
+		data[index++] = priv->tx_ring[i]->bytes;
 	}
 	for (i = 0; i < priv->rx_ring_num; i++) {
-		data[index++] = priv->rx_ring[i].packets;
-		data[index++] = priv->rx_ring[i].bytes;
+		data[index++] = priv->rx_ring[i]->packets;
+		data[index++] = priv->rx_ring[i]->bytes;
 #ifdef CONFIG_NET_RX_BUSY_POLL
-		data[index++] = priv->rx_ring[i].yields;
-		data[index++] = priv->rx_ring[i].misses;
-		data[index++] = priv->rx_ring[i].cleaned;
+		data[index++] = priv->rx_ring[i]->yields;
+		data[index++] = priv->rx_ring[i]->misses;
+		data[index++] = priv->rx_ring[i]->cleaned;
 #endif
 	}
 	spin_unlock_bh(&priv->stats_lock);
@@ -510,9 +510,9 @@ static int mlx4_en_set_ringparam(struct net_device *dev,
 	tx_size = max_t(u32, tx_size, MLX4_EN_MIN_TX_SIZE);
 	tx_size = min_t(u32, tx_size, MLX4_EN_MAX_TX_SIZE);
 
-	if (rx_size == (priv->port_up ? priv->rx_ring[0].actual_size :
-					priv->rx_ring[0].size) &&
-	    tx_size == priv->tx_ring[0].size)
+	if (rx_size == (priv->port_up ? priv->rx_ring[0]->actual_size :
+					priv->rx_ring[0]->size) &&
+	    tx_size == priv->tx_ring[0]->size)
 		return 0;
 
 	mutex_lock(&mdev->state_lock);
@@ -553,8 +553,8 @@ static void mlx4_en_get_ringparam(struct net_device *dev,
 	param->rx_max_pending = MLX4_EN_MAX_RX_SIZE;
 	param->tx_max_pending = MLX4_EN_MAX_TX_SIZE;
 	param->rx_pending = priv->port_up ?
-		priv->rx_ring[0].actual_size : priv->rx_ring[0].size;
-	param->tx_pending = priv->tx_ring[0].size;
+		priv->rx_ring[0]->actual_size : priv->rx_ring[0]->size;
+	param->tx_pending = priv->tx_ring[0]->size;
 }
 
 static u32 mlx4_en_get_rxfh_indir_size(struct net_device *dev)
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index cd61e26f434d..f430788cc4fe 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -75,7 +75,7 @@ static int mlx4_en_low_latency_recv(struct napi_struct *napi)
 	struct mlx4_en_cq *cq = container_of(napi, struct mlx4_en_cq, napi);
 	struct net_device *dev = cq->dev;
 	struct mlx4_en_priv *priv = netdev_priv(dev);
-	struct mlx4_en_rx_ring *rx_ring = &priv->rx_ring[cq->ring];
+	struct mlx4_en_rx_ring *rx_ring = priv->rx_ring[cq->ring];
 	int done;
 
 	if (!priv->port_up)
@@ -355,8 +355,7 @@ err:
 	return ret;
 }
 
-void mlx4_en_cleanup_filters(struct mlx4_en_priv *priv,
-			     struct mlx4_en_rx_ring *rx_ring)
+void mlx4_en_cleanup_filters(struct mlx4_en_priv *priv)
 {
 	struct mlx4_en_filter *filter, *tmp;
 	LIST_HEAD(del_list);
@@ -1242,7 +1241,7 @@ static void mlx4_en_netpoll(struct net_device *dev)
 	int i;
 
 	for (i = 0; i < priv->rx_ring_num; i++) {
-		cq = &priv->rx_cq[i];
+		cq = priv->rx_cq[i];
 		spin_lock_irqsave(&cq->lock, flags);
 		napi_synchronize(&cq->napi);
 		mlx4_en_process_rx_cq(dev, cq, 0);
@@ -1264,8 +1263,8 @@ static void mlx4_en_tx_timeout(struct net_device *dev)
 		if (!netif_tx_queue_stopped(netdev_get_tx_queue(dev, i)))
 			continue;
 		en_warn(priv, "TX timeout on queue: %d, QP: 0x%x, CQ: 0x%x, Cons: 0x%x, Prod: 0x%x\n",
-			i, priv->tx_ring[i].qpn, priv->tx_ring[i].cqn,
-			priv->tx_ring[i].cons, priv->tx_ring[i].prod);
+			i, priv->tx_ring[i]->qpn, priv->tx_ring[i]->cqn,
+			priv->tx_ring[i]->cons, priv->tx_ring[i]->prod);
 	}
 
 	priv->port_stats.tx_timeout++;
@@ -1305,7 +1304,7 @@ static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv)
 
 	/* Setup cq moderation params */
 	for (i = 0; i < priv->rx_ring_num; i++) {
-		cq = &priv->rx_cq[i];
+		cq = priv->rx_cq[i];
 		cq->moder_cnt = priv->rx_frames;
 		cq->moder_time = priv->rx_usecs;
 		priv->last_moder_time[i] = MLX4_EN_AUTO_CONF;
@@ -1314,7 +1313,7 @@ static void mlx4_en_set_default_moderation(struct mlx4_en_priv *priv)
 	}
 
 	for (i = 0; i < priv->tx_ring_num; i++) {
-		cq = &priv->tx_cq[i];
+		cq = priv->tx_cq[i];
 		cq->moder_cnt = priv->tx_frames;
 		cq->moder_time = priv->tx_usecs;
 	}
@@ -1348,8 +1347,8 @@ static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv)
 
 	for (ring = 0; ring < priv->rx_ring_num; ring++) {
 		spin_lock_bh(&priv->stats_lock);
-		rx_packets = priv->rx_ring[ring].packets;
-		rx_bytes = priv->rx_ring[ring].bytes;
+		rx_packets = priv->rx_ring[ring]->packets;
+		rx_bytes = priv->rx_ring[ring]->bytes;
 		spin_unlock_bh(&priv->stats_lock);
 
 		rx_pkt_diff = ((unsigned long) (rx_packets -
@@ -1378,7 +1377,7 @@ static void mlx4_en_auto_moderation(struct mlx4_en_priv *priv)
 
 		if (moder_time != priv->last_moder_time[ring]) {
 			priv->last_moder_time[ring] = moder_time;
-			cq = &priv->rx_cq[ring];
+			cq = priv->rx_cq[ring];
 			cq->moder_time = moder_time;
 			cq->moder_cnt = priv->rx_frames;
 			err = mlx4_en_set_cq_moder(priv, cq);
@@ -1501,7 +1500,7 @@ int mlx4_en_start_port(struct net_device *dev)
 		return err;
 	}
 	for (i = 0; i < priv->rx_ring_num; i++) {
-		cq = &priv->rx_cq[i];
+		cq = priv->rx_cq[i];
 
 		mlx4_en_cq_init_lock(cq);
 
@@ -1519,7 +1518,7 @@ int mlx4_en_start_port(struct net_device *dev)
 			goto cq_err;
 		}
 		mlx4_en_arm_cq(priv, cq);
-		priv->rx_ring[i].cqn = cq->mcq.cqn;
+		priv->rx_ring[i]->cqn = cq->mcq.cqn;
 		++rx_index;
 	}
 
@@ -1545,7 +1544,7 @@ int mlx4_en_start_port(struct net_device *dev)
 	/* Configure tx cq's and rings */
 	for (i = 0; i < priv->tx_ring_num; i++) {
 		/* Configure cq */
-		cq = &priv->tx_cq[i];
+		cq = priv->tx_cq[i];
 		err = mlx4_en_activate_cq(priv, cq, i);
 		if (err) {
 			en_err(priv, "Failed allocating Tx CQ\n");
@@ -1561,7 +1560,7 @@ int mlx4_en_start_port(struct net_device *dev)
 		cq->buf->wqe_index = cpu_to_be16(0xffff);
 
 		/* Configure ring */
-		tx_ring = &priv->tx_ring[i];
+		tx_ring = priv->tx_ring[i];
 		err = mlx4_en_activate_tx_ring(priv, tx_ring, cq->mcq.cqn,
 			i / priv->num_tx_rings_p_up);
 		if (err) {
@@ -1631,8 +1630,8 @@ int mlx4_en_start_port(struct net_device *dev)
 
 tx_err:
 	while (tx_index--) {
-		mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[tx_index]);
-		mlx4_en_deactivate_cq(priv, &priv->tx_cq[tx_index]);
+		mlx4_en_deactivate_tx_ring(priv, priv->tx_ring[tx_index]);
+		mlx4_en_deactivate_cq(priv, priv->tx_cq[tx_index]);
 	}
 	mlx4_en_destroy_drop_qp(priv);
 rss_err:
@@ -1641,9 +1640,9 @@ mac_err:
 	mlx4_en_put_qp(priv);
 cq_err:
 	while (rx_index--)
-		mlx4_en_deactivate_cq(priv, &priv->rx_cq[rx_index]);
+		mlx4_en_deactivate_cq(priv, priv->rx_cq[rx_index]);
 	for (i = 0; i < priv->rx_ring_num; i++)
-		mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]);
+		mlx4_en_deactivate_rx_ring(priv, priv->rx_ring[i]);
 
 	return err; /* need to close devices */
 }
@@ -1739,13 +1738,13 @@ void mlx4_en_stop_port(struct net_device *dev, int detach)
 
 	/* Free TX Rings */
 	for (i = 0; i < priv->tx_ring_num; i++) {
-		mlx4_en_deactivate_tx_ring(priv, &priv->tx_ring[i]);
-		mlx4_en_deactivate_cq(priv, &priv->tx_cq[i]);
+		mlx4_en_deactivate_tx_ring(priv, priv->tx_ring[i]);
+		mlx4_en_deactivate_cq(priv, priv->tx_cq[i]);
 	}
 	msleep(10);
 
 	for (i = 0; i < priv->tx_ring_num; i++)
-		mlx4_en_free_tx_buf(dev, &priv->tx_ring[i]);
+		mlx4_en_free_tx_buf(dev, priv->tx_ring[i]);
 
 	/* Free RSS qps */
 	mlx4_en_release_rss_steer(priv);
@@ -1757,7 +1756,7 @@ void mlx4_en_stop_port(struct net_device *dev, int detach)
 
 	/* Free RX Rings */
 	for (i = 0; i < priv->rx_ring_num; i++) {
-		struct mlx4_en_cq *cq = &priv->rx_cq[i];
+		struct mlx4_en_cq *cq = priv->rx_cq[i];
 
 		local_bh_disable();
 		while (!mlx4_en_cq_lock_napi(cq)) {
@@ -1768,7 +1767,7 @@ void mlx4_en_stop_port(struct net_device *dev, int detach)
 
 		while (test_bit(NAPI_STATE_SCHED, &cq->napi.state))
 			msleep(1);
-		mlx4_en_deactivate_rx_ring(priv, &priv->rx_ring[i]);
+		mlx4_en_deactivate_rx_ring(priv, priv->rx_ring[i]);
 		mlx4_en_deactivate_cq(priv, cq);
 	}
 }
@@ -1806,15 +1805,15 @@ static void mlx4_en_clear_stats(struct net_device *dev)
 	memset(&priv->port_stats, 0, sizeof(priv->port_stats));
 
 	for (i = 0; i < priv->tx_ring_num; i++) {
-		priv->tx_ring[i].bytes = 0;
-		priv->tx_ring[i].packets = 0;
-		priv->tx_ring[i].tx_csum = 0;
+		priv->tx_ring[i]->bytes = 0;
+		priv->tx_ring[i]->packets = 0;
+		priv->tx_ring[i]->tx_csum = 0;
 	}
 	for (i = 0; i < priv->rx_ring_num; i++) {
-		priv->rx_ring[i].bytes = 0;
-		priv->rx_ring[i].packets = 0;
-		priv->rx_ring[i].csum_ok = 0;
-		priv->rx_ring[i].csum_none = 0;
+		priv->rx_ring[i]->bytes = 0;
+		priv->rx_ring[i]->packets = 0;
+		priv->rx_ring[i]->csum_ok = 0;
+		priv->rx_ring[i]->csum_none = 0;
 	}
 }
 
@@ -1871,17 +1870,17 @@ void mlx4_en_free_resources(struct mlx4_en_priv *priv)
 #endif
 
 	for (i = 0; i < priv->tx_ring_num; i++) {
-		if (priv->tx_ring[i].tx_info)
+		if (priv->tx_ring && priv->tx_ring[i])
 			mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]);
-		if (priv->tx_cq[i].buf)
+		if (priv->tx_cq && priv->tx_cq[i])
 			mlx4_en_destroy_cq(priv, &priv->tx_cq[i]);
 	}
 
 	for (i = 0; i < priv->rx_ring_num; i++) {
-		if (priv->rx_ring[i].rx_info)
+		if (priv->rx_ring[i])
 			mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i],
 				priv->prof->rx_ring_size, priv->stride);
-		if (priv->rx_cq[i].buf)
+		if (priv->rx_cq[i])
 			mlx4_en_destroy_cq(priv, &priv->rx_cq[i]);
 	}
 
@@ -1937,6 +1936,20 @@ int mlx4_en_alloc_resources(struct mlx4_en_priv *priv)
 
 err:
 	en_err(priv, "Failed to allocate NIC resources\n");
+	for (i = 0; i < priv->rx_ring_num; i++) {
+		if (priv->rx_ring[i])
+			mlx4_en_destroy_rx_ring(priv, &priv->rx_ring[i],
+						prof->rx_ring_size,
+						priv->stride);
+		if (priv->rx_cq[i])
+			mlx4_en_destroy_cq(priv, &priv->rx_cq[i]);
+	}
+	for (i = 0; i < priv->tx_ring_num; i++) {
+		if (priv->tx_ring[i])
+			mlx4_en_destroy_tx_ring(priv, &priv->tx_ring[i]);
+		if (priv->tx_cq[i])
+			mlx4_en_destroy_cq(priv, &priv->tx_cq[i]);
+	}
 	return -ENOMEM;
 }
 
@@ -2230,13 +2243,13 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
 	priv->num_tx_rings_p_up = mdev->profile.num_tx_rings_p_up;
 	priv->tx_ring_num = prof->tx_ring_num;
 
-	priv->tx_ring = kzalloc(sizeof(struct mlx4_en_tx_ring) * MAX_TX_RINGS,
+	priv->tx_ring = kzalloc(sizeof(struct mlx4_en_tx_ring *) * MAX_TX_RINGS,
 				GFP_KERNEL);
 	if (!priv->tx_ring) {
 		err = -ENOMEM;
 		goto out;
 	}
-	priv->tx_cq = kzalloc(sizeof(struct mlx4_en_cq) * MAX_TX_RINGS,
+	priv->tx_cq = kzalloc(sizeof(struct mlx4_en_cq *) * MAX_TX_RINGS,
 			      GFP_KERNEL);
 	if (!priv->tx_cq) {
 		err = -ENOMEM;
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_port.c b/drivers/net/ethernet/mellanox/mlx4/en_port.c
index 5f8535e408a3..dae1a1f4ae55 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_port.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_port.c
@@ -140,18 +140,18 @@ int mlx4_en_DUMP_ETH_STATS(struct mlx4_en_dev *mdev, u8 port, u8 reset)
 	priv->port_stats.rx_chksum_good = 0;
 	priv->port_stats.rx_chksum_none = 0;
 	for (i = 0; i < priv->rx_ring_num; i++) {
-		stats->rx_packets += priv->rx_ring[i].packets;
-		stats->rx_bytes += priv->rx_ring[i].bytes;
-		priv->port_stats.rx_chksum_good += priv->rx_ring[i].csum_ok;
-		priv->port_stats.rx_chksum_none += priv->rx_ring[i].csum_none;
+		stats->rx_packets += priv->rx_ring[i]->packets;
+		stats->rx_bytes += priv->rx_ring[i]->bytes;
+		priv->port_stats.rx_chksum_good += priv->rx_ring[i]->csum_ok;
+		priv->port_stats.rx_chksum_none += priv->rx_ring[i]->csum_none;
 	}
 	stats->tx_packets = 0;
 	stats->tx_bytes = 0;
 	priv->port_stats.tx_chksum_offload = 0;
 	for (i = 0; i < priv->tx_ring_num; i++) {
-		stats->tx_packets += priv->tx_ring[i].packets;
-		stats->tx_bytes += priv->tx_ring[i].bytes;
-		priv->port_stats.tx_chksum_offload += priv->tx_ring[i].tx_csum;
+		stats->tx_packets += priv->tx_ring[i]->packets;
+		stats->tx_bytes += priv->tx_ring[i]->bytes;
+		priv->port_stats.tx_chksum_offload += priv->tx_ring[i]->tx_csum;
 	}
 
 	stats->rx_errors = be64_to_cpu(mlx4_en_stats->PCS) +
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index afe2efa69c86..1c45f88776c5 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -264,7 +264,7 @@ static int mlx4_en_fill_rx_buffers(struct mlx4_en_priv *priv)
 
 	for (buf_ind = 0; buf_ind < priv->prof->rx_ring_size; buf_ind++) {
 		for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++) {
-			ring = &priv->rx_ring[ring_ind];
+			ring = priv->rx_ring[ring_ind];
 
 			if (mlx4_en_prepare_rx_desc(priv, ring,
 						    ring->actual_size,
@@ -289,7 +289,7 @@ static int mlx4_en_fill_rx_buffers(struct mlx4_en_priv *priv)
 
 reduce_rings:
 	for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++) {
-		ring = &priv->rx_ring[ring_ind];
+		ring = priv->rx_ring[ring_ind];
 		while (ring->actual_size > new_size) {
 			ring->actual_size--;
 			ring->prod--;
@@ -319,12 +319,20 @@ static void mlx4_en_free_rx_buf(struct mlx4_en_priv *priv,
 }
 
 int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
-			   struct mlx4_en_rx_ring *ring, u32 size, u16 stride)
+			   struct mlx4_en_rx_ring **pring,
+			   u32 size, u16 stride)
 {
 	struct mlx4_en_dev *mdev = priv->mdev;
+	struct mlx4_en_rx_ring *ring;
 	int err = -ENOMEM;
 	int tmp;
 
+	ring = kzalloc(sizeof(*ring), GFP_KERNEL);
+	if (!ring) {
+		en_err(priv, "Failed to allocate RX ring structure\n");
+		return -ENOMEM;
+	}
+
 	ring->prod = 0;
 	ring->cons = 0;
 	ring->size = size;
@@ -336,8 +344,10 @@ int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
 	tmp = size * roundup_pow_of_two(MLX4_EN_MAX_RX_FRAGS *
 					sizeof(struct mlx4_en_rx_alloc));
 	ring->rx_info = vmalloc(tmp);
-	if (!ring->rx_info)
-		return -ENOMEM;
+	if (!ring->rx_info) {
+		err = -ENOMEM;
+		goto err_ring;
+	}
 
 	en_dbg(DRV, priv, "Allocated rx_info ring at addr:%p size:%d\n",
 		 ring->rx_info, tmp);
@@ -345,7 +355,7 @@ int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
 	err = mlx4_alloc_hwq_res(mdev->dev, &ring->wqres,
 				 ring->buf_size, 2 * PAGE_SIZE);
 	if (err)
-		goto err_ring;
+		goto err_info;
 
 	err = mlx4_en_map_buffer(&ring->wqres.buf);
 	if (err) {
@@ -356,13 +366,18 @@ int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
 
 	ring->hwtstamp_rx_filter = priv->hwtstamp_config.rx_filter;
 
+	*pring = ring;
 	return 0;
 
 err_hwq:
 	mlx4_free_hwq_res(mdev->dev, &ring->wqres, ring->buf_size);
-err_ring:
+err_info:
 	vfree(ring->rx_info);
 	ring->rx_info = NULL;
+err_ring:
+	kfree(ring);
+	*pring = NULL;
+
 	return err;
 }
 
@@ -376,12 +391,12 @@ int mlx4_en_activate_rx_rings(struct mlx4_en_priv *priv)
 					DS_SIZE * priv->num_frags);
 
 	for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++) {
-		ring = &priv->rx_ring[ring_ind];
+		ring = priv->rx_ring[ring_ind];
 
 		ring->prod = 0;
 		ring->cons = 0;
 		ring->actual_size = 0;
-		ring->cqn = priv->rx_cq[ring_ind].mcq.cqn;
+		ring->cqn = priv->rx_cq[ring_ind]->mcq.cqn;
 
 		ring->stride = stride;
 		if (ring->stride <= TXBB_SIZE)
@@ -412,7 +427,7 @@ int mlx4_en_activate_rx_rings(struct mlx4_en_priv *priv)
 		goto err_buffers;
 
 	for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++) {
-		ring = &priv->rx_ring[ring_ind];
+		ring = priv->rx_ring[ring_ind];
 
 		ring->size_mask = ring->actual_size - 1;
 		mlx4_en_update_rx_prod_db(ring);
@@ -422,30 +437,34 @@ int mlx4_en_activate_rx_rings(struct mlx4_en_priv *priv)
 
 err_buffers:
 	for (ring_ind = 0; ring_ind < priv->rx_ring_num; ring_ind++)
-		mlx4_en_free_rx_buf(priv, &priv->rx_ring[ring_ind]);
+		mlx4_en_free_rx_buf(priv, priv->rx_ring[ring_ind]);
 
 	ring_ind = priv->rx_ring_num - 1;
 err_allocator:
 	while (ring_ind >= 0) {
-		if (priv->rx_ring[ring_ind].stride <= TXBB_SIZE)
-			priv->rx_ring[ring_ind].buf -= TXBB_SIZE;
-		mlx4_en_destroy_allocator(priv, &priv->rx_ring[ring_ind]);
+		if (priv->rx_ring[ring_ind]->stride <= TXBB_SIZE)
+			priv->rx_ring[ring_ind]->buf -= TXBB_SIZE;
+		mlx4_en_destroy_allocator(priv, priv->rx_ring[ring_ind]);
 		ring_ind--;
 	}
 	return err;
 }
 
 void mlx4_en_destroy_rx_ring(struct mlx4_en_priv *priv,
-			     struct mlx4_en_rx_ring *ring, u32 size, u16 stride)
+			     struct mlx4_en_rx_ring **pring,
+			     u32 size, u16 stride)
 {
 	struct mlx4_en_dev *mdev = priv->mdev;
+	struct mlx4_en_rx_ring *ring = *pring;
 
 	mlx4_en_unmap_buffer(&ring->wqres.buf);
 	mlx4_free_hwq_res(mdev->dev, &ring->wqres, size * stride + TXBB_SIZE);
 	vfree(ring->rx_info);
 	ring->rx_info = NULL;
+	kfree(ring);
+	*pring = NULL;
 #ifdef CONFIG_RFS_ACCEL
-	mlx4_en_cleanup_filters(priv, ring);
+	mlx4_en_cleanup_filters(priv);
 #endif
 }
 
@@ -592,7 +611,7 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud
 	struct mlx4_en_priv *priv = netdev_priv(dev);
 	struct mlx4_en_dev *mdev = priv->mdev;
 	struct mlx4_cqe *cqe;
-	struct mlx4_en_rx_ring *ring = &priv->rx_ring[cq->ring];
+	struct mlx4_en_rx_ring *ring = priv->rx_ring[cq->ring];
 	struct mlx4_en_rx_alloc *frags;
 	struct mlx4_en_rx_desc *rx_desc;
 	struct sk_buff *skb;
@@ -991,7 +1010,7 @@ int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv)
 
 	for (i = 0; i < priv->rx_ring_num; i++) {
 		qpn = rss_map->base_qpn + i;
-		err = mlx4_en_config_rss_qp(priv, qpn, &priv->rx_ring[i],
+		err = mlx4_en_config_rss_qp(priv, qpn, priv->rx_ring[i],
 					    &rss_map->state[i],
 					    &rss_map->qps[i]);
 		if (err)
@@ -1008,7 +1027,7 @@ int mlx4_en_config_rss_steer(struct mlx4_en_priv *priv)
 	}
 	rss_map->indir_qp.event = mlx4_en_sqp_event;
 	mlx4_en_fill_qp_context(priv, 0, 0, 0, 1, priv->base_qpn,
-				priv->rx_ring[0].cqn, -1, &context);
+				priv->rx_ring[0]->cqn, -1, &context);
 
 	if (!priv->prof->rss_rings || priv->prof->rss_rings > priv->rx_ring_num)
 		rss_rings = priv->rx_ring_num;
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_selftest.c b/drivers/net/ethernet/mellanox/mlx4/en_selftest.c
index 2448f0d669e6..40626690e8a8 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_selftest.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_selftest.c
@@ -156,7 +156,7 @@ retry_tx:
 		 * since we turned the carrier off */
 		msleep(200);
 		for (i = 0; i < priv->tx_ring_num && carrier_ok; i++) {
-			tx_ring = &priv->tx_ring[i];
+			tx_ring = priv->tx_ring[i];
 			if (tx_ring->prod != (tx_ring->cons + tx_ring->last_nr_txbb))
 				goto retry_tx;
 		}
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
index 0698c82d6ff1..d4e4cf30a720 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
@@ -54,13 +54,20 @@ module_param_named(inline_thold, inline_thold, int, 0444);
 MODULE_PARM_DESC(inline_thold, "threshold for using inline data");
 
 int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
-			   struct mlx4_en_tx_ring *ring, int qpn, u32 size,
+			   struct mlx4_en_tx_ring **pring, int qpn, u32 size,
 			   u16 stride)
 {
 	struct mlx4_en_dev *mdev = priv->mdev;
+	struct mlx4_en_tx_ring *ring;
 	int tmp;
 	int err;
 
+	ring = kzalloc(sizeof(*ring), GFP_KERNEL);
+	if (!ring) {
+		en_err(priv, "Failed allocating TX ring\n");
+		return -ENOMEM;
+	}
+
 	ring->size = size;
 	ring->size_mask = size - 1;
 	ring->stride = stride;
@@ -69,8 +76,10 @@ int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
 
 	tmp = size * sizeof(struct mlx4_en_tx_info);
 	ring->tx_info = vmalloc(tmp);
-	if (!ring->tx_info)
-		return -ENOMEM;
+	if (!ring->tx_info) {
+		err = -ENOMEM;
+		goto err_ring;
+	}
 
 	en_dbg(DRV, priv, "Allocated tx_info ring at addr:%p size:%d\n",
 		 ring->tx_info, tmp);
@@ -78,7 +87,7 @@ int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
 	ring->bounce_buf = kmalloc(MAX_DESC_SIZE, GFP_KERNEL);
 	if (!ring->bounce_buf) {
 		err = -ENOMEM;
-		goto err_tx;
+		goto err_info;
 	}
 	ring->buf_size = ALIGN(size * ring->stride, MLX4_EN_PAGE_SIZE);
 
@@ -120,6 +129,7 @@ int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
 
 	ring->hwtstamp_tx_type = priv->hwtstamp_config.tx_type;
 
+	*pring = ring;
 	return 0;
 
 err_map:
@@ -129,16 +139,20 @@ err_hwq_res:
 err_bounce:
 	kfree(ring->bounce_buf);
 	ring->bounce_buf = NULL;
-err_tx:
+err_info:
 	vfree(ring->tx_info);
 	ring->tx_info = NULL;
+err_ring:
+	kfree(ring);
+	*pring = NULL;
 	return err;
 }
 
 void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv,
-			     struct mlx4_en_tx_ring *ring)
+			     struct mlx4_en_tx_ring **pring)
 {
 	struct mlx4_en_dev *mdev = priv->mdev;
+	struct mlx4_en_tx_ring *ring = *pring;
 	en_dbg(DRV, priv, "Destroying tx ring, qpn: %d\n", ring->qpn);
 
 	if (ring->bf_enabled)
@@ -151,6 +165,8 @@ void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv,
 	ring->bounce_buf = NULL;
 	vfree(ring->tx_info);
 	ring->tx_info = NULL;
+	kfree(ring);
+	*pring = NULL;
 }
 
 int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv,
@@ -330,7 +346,7 @@ static void mlx4_en_process_tx_cq(struct net_device *dev, struct mlx4_en_cq *cq)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);
 	struct mlx4_cq *mcq = &cq->mcq;
-	struct mlx4_en_tx_ring *ring = &priv->tx_ring[cq->ring];
+	struct mlx4_en_tx_ring *ring = priv->tx_ring[cq->ring];
 	struct mlx4_cqe *cqe;
 	u16 index;
 	u16 new_index, ring_index, stamp_index;
@@ -622,7 +638,7 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev)
 	}
 
 	tx_ind = skb->queue_mapping;
-	ring = &priv->tx_ring[tx_ind];
+	ring = priv->tx_ring[tx_ind];
 	if (vlan_tx_tag_present(skb))
 		vlan_tag = vlan_tx_tag_get(skb);
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index bf06e3610d27..b2547ae07dfa 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -530,10 +530,10 @@ struct mlx4_en_priv {
 	u16 num_frags;
 	u16 log_rx_info;
 
-	struct mlx4_en_tx_ring *tx_ring;
-	struct mlx4_en_rx_ring rx_ring[MAX_RX_RINGS];
-	struct mlx4_en_cq *tx_cq;
-	struct mlx4_en_cq rx_cq[MAX_RX_RINGS];
+	struct mlx4_en_tx_ring **tx_ring;
+	struct mlx4_en_rx_ring *rx_ring[MAX_RX_RINGS];
+	struct mlx4_en_cq **tx_cq;
+	struct mlx4_en_cq *rx_cq[MAX_RX_RINGS];
 	struct mlx4_qp drop_qp;
 	struct work_struct rx_mode_task;
 	struct work_struct watchdog_task;
@@ -626,7 +626,7 @@ static inline bool mlx4_en_cq_lock_poll(struct mlx4_en_cq *cq)
 	if ((cq->state & MLX4_CQ_LOCKED)) {
 		struct net_device *dev = cq->dev;
 		struct mlx4_en_priv *priv = netdev_priv(dev);
-		struct mlx4_en_rx_ring *rx_ring = &priv->rx_ring[cq->ring];
+		struct mlx4_en_rx_ring *rx_ring = priv->rx_ring[cq->ring];
 
 		cq->state |= MLX4_EN_CQ_STATE_POLL_YIELD;
 		rc = false;
@@ -704,9 +704,9 @@ void mlx4_en_stop_port(struct net_device *dev, int detach);
 void mlx4_en_free_resources(struct mlx4_en_priv *priv);
 int mlx4_en_alloc_resources(struct mlx4_en_priv *priv);
 
-int mlx4_en_create_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
+int mlx4_en_create_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq **pcq,
 		      int entries, int ring, enum cq_type mode);
-void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
+void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq **pcq);
 int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
 			int cq_idx);
 void mlx4_en_deactivate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq);
@@ -717,9 +717,11 @@ void mlx4_en_tx_irq(struct mlx4_cq *mcq);
 u16 mlx4_en_select_queue(struct net_device *dev, struct sk_buff *skb);
 netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev);
 
-int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv, struct mlx4_en_tx_ring *ring,
+int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
+			   struct mlx4_en_tx_ring **pring,
 			   int qpn, u32 size, u16 stride);
-void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv, struct mlx4_en_tx_ring *ring);
+void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv,
+			     struct mlx4_en_tx_ring **pring);
 int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv,
 			     struct mlx4_en_tx_ring *ring,
 			     int cq, int user_prio);
@@ -727,10 +729,10 @@ void mlx4_en_deactivate_tx_ring(struct mlx4_en_priv *priv,
 				struct mlx4_en_tx_ring *ring);
 
 int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
-			   struct mlx4_en_rx_ring *ring,
+			   struct mlx4_en_rx_ring **pring,
 			   u32 size, u16 stride);
 void mlx4_en_destroy_rx_ring(struct mlx4_en_priv *priv,
-			     struct mlx4_en_rx_ring *ring,
+			     struct mlx4_en_rx_ring **pring,
 			     u32 size, u16 stride);
 int mlx4_en_activate_rx_rings(struct mlx4_en_priv *priv);
 void mlx4_en_deactivate_rx_ring(struct mlx4_en_priv *priv,
@@ -768,8 +770,7 @@ extern const struct dcbnl_rtnl_ops mlx4_en_dcbnl_pfc_ops;
 int mlx4_en_setup_tc(struct net_device *dev, u8 up);
 
 #ifdef CONFIG_RFS_ACCEL
-void mlx4_en_cleanup_filters(struct mlx4_en_priv *priv,
-			     struct mlx4_en_rx_ring *rx_ring);
+void mlx4_en_cleanup_filters(struct mlx4_en_priv *priv);
 #endif
 
 #define MLX4_EN_NUM_SELF_TEST	5
-- 
cgit 


From 6e7136ed7793fa4948b0192dcd6862d12a50d67c Mon Sep 17 00:00:00 2001
From: Eugenia Emantayev <eugenia@mellanox.com>
Date: Thu, 7 Nov 2013 12:19:53 +0200
Subject: net/mlx4_core: ICM pages are allocated on device NUMA node

This is done to optimize FW/HW access to host memory.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.com>
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Reviewed-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/icm.c  | 42 ++++++++++++++++++++++---------
 drivers/net/ethernet/mellanox/mlx4/main.c |  1 +
 include/linux/mlx4/device.h               |  1 +
 3 files changed, 32 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/icm.c b/drivers/net/ethernet/mellanox/mlx4/icm.c
index 31d02649be41..5fbf4924c272 100644
--- a/drivers/net/ethernet/mellanox/mlx4/icm.c
+++ b/drivers/net/ethernet/mellanox/mlx4/icm.c
@@ -93,13 +93,17 @@ void mlx4_free_icm(struct mlx4_dev *dev, struct mlx4_icm *icm, int coherent)
 	kfree(icm);
 }
 
-static int mlx4_alloc_icm_pages(struct scatterlist *mem, int order, gfp_t gfp_mask)
+static int mlx4_alloc_icm_pages(struct scatterlist *mem, int order,
+				gfp_t gfp_mask, int node)
 {
 	struct page *page;
 
-	page = alloc_pages(gfp_mask, order);
-	if (!page)
-		return -ENOMEM;
+	page = alloc_pages_node(node, gfp_mask, order);
+	if (!page) {
+		page = alloc_pages(gfp_mask, order);
+		if (!page)
+			return -ENOMEM;
+	}
 
 	sg_set_page(mem, page, PAGE_SIZE << order, 0);
 	return 0;
@@ -130,9 +134,15 @@ struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages,
 	/* We use sg_set_buf for coherent allocs, which assumes low memory */
 	BUG_ON(coherent && (gfp_mask & __GFP_HIGHMEM));
 
-	icm = kmalloc(sizeof *icm, gfp_mask & ~(__GFP_HIGHMEM | __GFP_NOWARN));
-	if (!icm)
-		return NULL;
+	icm = kmalloc_node(sizeof(*icm),
+			   gfp_mask & ~(__GFP_HIGHMEM | __GFP_NOWARN),
+			   dev->numa_node);
+	if (!icm) {
+		icm = kmalloc(sizeof(*icm),
+			      gfp_mask & ~(__GFP_HIGHMEM | __GFP_NOWARN));
+		if (!icm)
+			return NULL;
+	}
 
 	icm->refcount = 0;
 	INIT_LIST_HEAD(&icm->chunk_list);
@@ -141,10 +151,17 @@ struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages,
 
 	while (npages > 0) {
 		if (!chunk) {
-			chunk = kmalloc(sizeof *chunk,
-					gfp_mask & ~(__GFP_HIGHMEM | __GFP_NOWARN));
-			if (!chunk)
-				goto fail;
+			chunk = kmalloc_node(sizeof(*chunk),
+					     gfp_mask & ~(__GFP_HIGHMEM |
+							  __GFP_NOWARN),
+					     dev->numa_node);
+			if (!chunk) {
+				chunk = kmalloc(sizeof(*chunk),
+						gfp_mask & ~(__GFP_HIGHMEM |
+							     __GFP_NOWARN));
+				if (!chunk)
+					goto fail;
+			}
 
 			sg_init_table(chunk->mem, MLX4_ICM_CHUNK_LEN);
 			chunk->npages = 0;
@@ -161,7 +178,8 @@ struct mlx4_icm *mlx4_alloc_icm(struct mlx4_dev *dev, int npages,
 						      cur_order, gfp_mask);
 		else
 			ret = mlx4_alloc_icm_pages(&chunk->mem[chunk->npages],
-						   cur_order, gfp_mask);
+						   cur_order, gfp_mask,
+						   dev->numa_node);
 
 		if (ret) {
 			if (--cur_order < 0)
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index 7d2628dfdc29..5789ea2c934d 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -2191,6 +2191,7 @@ static int __mlx4_init_one(struct pci_dev *pdev, int pci_dev_data)
 	mutex_init(&priv->bf_mutex);
 
 	dev->rev_id = pdev->revision;
+	dev->numa_node = dev_to_node(&pdev->dev);
 	/* Detect if this device is a virtual function */
 	if (pci_dev_data & MLX4_PCI_DEV_IS_VF) {
 		/* When acting as pf, we normally skip vfs unless explicitly
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index f6f59271f857..4cf0b0153639 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -662,6 +662,7 @@ struct mlx4_dev {
 	u8			rev_id;
 	char			board_id[MLX4_BOARD_ID_LEN];
 	int			num_vfs;
+	int			numa_node;
 	int			oper_log_mgm_entry_size;
 	u64			regid_promisc_array[MLX4_MAX_PORTS + 1];
 	u64			regid_allmulti_array[MLX4_MAX_PORTS + 1];
-- 
cgit 


From 163561a4e2f8af44e96453bc10c7a4f9bcc736e1 Mon Sep 17 00:00:00 2001
From: Eugenia Emantayev <eugenia@mellanox.com>
Date: Thu, 7 Nov 2013 12:19:54 +0200
Subject: net/mlx4_en: Datapath structures are allocated per NUMA node

For each RX/TX ring and its CQ, allocation is done on a NUMA node that
corresponds to the core that the data structure should operate on.
The assumption is that the core number is reflected by the ring index.
The affected allocations are the ring/CQ data structures,
the TX/RX info and the shared HW/SW buffer.
For TX rings, each core has rings of all UPs.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.com>
Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Reviewed-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/en_cq.c     | 17 ++++++++++---
 drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 12 ++++++---
 drivers/net/ethernet/mellanox/mlx4/en_rx.c     | 23 +++++++++++------
 drivers/net/ethernet/mellanox/mlx4/en_tx.c     | 34 +++++++++++++++++---------
 drivers/net/ethernet/mellanox/mlx4/mlx4_en.h   |  6 ++---
 drivers/net/ethernet/mellanox/mlx4/pd.c        | 11 ++++++---
 include/linux/mlx4/device.h                    |  2 +-
 7 files changed, 71 insertions(+), 34 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_cq.c b/drivers/net/ethernet/mellanox/mlx4/en_cq.c
index d203f11b9edf..3a098cc4d349 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_cq.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_cq.c
@@ -45,16 +45,20 @@ static void mlx4_en_cq_event(struct mlx4_cq *cq, enum mlx4_event event)
 
 int mlx4_en_create_cq(struct mlx4_en_priv *priv,
 		      struct mlx4_en_cq **pcq,
-		      int entries, int ring, enum cq_type mode)
+		      int entries, int ring, enum cq_type mode,
+		      int node)
 {
 	struct mlx4_en_dev *mdev = priv->mdev;
 	struct mlx4_en_cq *cq;
 	int err;
 
-	cq = kzalloc(sizeof(*cq), GFP_KERNEL);
+	cq = kzalloc_node(sizeof(*cq), GFP_KERNEL, node);
 	if (!cq) {
-		en_err(priv, "Failed to allocate CQ structure\n");
-		return -ENOMEM;
+		cq = kzalloc(sizeof(*cq), GFP_KERNEL);
+		if (!cq) {
+			en_err(priv, "Failed to allocate CQ structure\n");
+			return -ENOMEM;
+		}
 	}
 
 	cq->size = entries;
@@ -64,8 +68,13 @@ int mlx4_en_create_cq(struct mlx4_en_priv *priv,
 	cq->is_tx = mode;
 	spin_lock_init(&cq->lock);
 
+	/* Allocate HW buffers on provided NUMA node.
+	 * dev->numa_node is used in mtt range allocation flow.
+	 */
+	set_dev_node(&mdev->dev->pdev->dev, node);
 	err = mlx4_alloc_hwq_res(mdev->dev, &cq->wqres,
 				cq->buf_size, 2 * PAGE_SIZE);
+	set_dev_node(&mdev->dev->pdev->dev, mdev->dev->numa_node);
 	if (err)
 		goto err_cq;
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
index f430788cc4fe..e72d8a112a6b 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c
@@ -1895,6 +1895,7 @@ int mlx4_en_alloc_resources(struct mlx4_en_priv *priv)
 	struct mlx4_en_port_profile *prof = priv->prof;
 	int i;
 	int err;
+	int node;
 
 	err = mlx4_qp_reserve_range(priv->mdev->dev, priv->tx_ring_num, 256, &priv->base_tx_qpn);
 	if (err) {
@@ -1904,23 +1905,26 @@ int mlx4_en_alloc_resources(struct mlx4_en_priv *priv)
 
 	/* Create tx Rings */
 	for (i = 0; i < priv->tx_ring_num; i++) {
+		node = cpu_to_node(i % num_online_cpus());
 		if (mlx4_en_create_cq(priv, &priv->tx_cq[i],
-				      prof->tx_ring_size, i, TX))
+				      prof->tx_ring_size, i, TX, node))
 			goto err;
 
 		if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i], priv->base_tx_qpn + i,
-					   prof->tx_ring_size, TXBB_SIZE))
+					   prof->tx_ring_size, TXBB_SIZE, node))
 			goto err;
 	}
 
 	/* Create rx Rings */
 	for (i = 0; i < priv->rx_ring_num; i++) {
+		node = cpu_to_node(i % num_online_cpus());
 		if (mlx4_en_create_cq(priv, &priv->rx_cq[i],
-				      prof->rx_ring_size, i, RX))
+				      prof->rx_ring_size, i, RX, node))
 			goto err;
 
 		if (mlx4_en_create_rx_ring(priv, &priv->rx_ring[i],
-					   prof->rx_ring_size, priv->stride))
+					   prof->rx_ring_size, priv->stride,
+					   node))
 			goto err;
 	}
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index 1c45f88776c5..07a1d0fbae47 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -320,17 +320,20 @@ static void mlx4_en_free_rx_buf(struct mlx4_en_priv *priv,
 
 int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
 			   struct mlx4_en_rx_ring **pring,
-			   u32 size, u16 stride)
+			   u32 size, u16 stride, int node)
 {
 	struct mlx4_en_dev *mdev = priv->mdev;
 	struct mlx4_en_rx_ring *ring;
 	int err = -ENOMEM;
 	int tmp;
 
-	ring = kzalloc(sizeof(*ring), GFP_KERNEL);
+	ring = kzalloc_node(sizeof(*ring), GFP_KERNEL, node);
 	if (!ring) {
-		en_err(priv, "Failed to allocate RX ring structure\n");
-		return -ENOMEM;
+		ring = kzalloc(sizeof(*ring), GFP_KERNEL);
+		if (!ring) {
+			en_err(priv, "Failed to allocate RX ring structure\n");
+			return -ENOMEM;
+		}
 	}
 
 	ring->prod = 0;
@@ -343,17 +346,23 @@ int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
 
 	tmp = size * roundup_pow_of_two(MLX4_EN_MAX_RX_FRAGS *
 					sizeof(struct mlx4_en_rx_alloc));
-	ring->rx_info = vmalloc(tmp);
+	ring->rx_info = vmalloc_node(tmp, node);
 	if (!ring->rx_info) {
-		err = -ENOMEM;
-		goto err_ring;
+		ring->rx_info = vmalloc(tmp);
+		if (!ring->rx_info) {
+			err = -ENOMEM;
+			goto err_ring;
+		}
 	}
 
 	en_dbg(DRV, priv, "Allocated rx_info ring at addr:%p size:%d\n",
 		 ring->rx_info, tmp);
 
+	/* Allocate HW buffers on provided NUMA node */
+	set_dev_node(&mdev->dev->pdev->dev, node);
 	err = mlx4_alloc_hwq_res(mdev->dev, &ring->wqres,
 				 ring->buf_size, 2 * PAGE_SIZE);
+	set_dev_node(&mdev->dev->pdev->dev, mdev->dev->numa_node);
 	if (err)
 		goto err_info;
 
diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
index d4e4cf30a720..f54ebd5a1702 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_tx.c
@@ -55,17 +55,20 @@ MODULE_PARM_DESC(inline_thold, "threshold for using inline data");
 
 int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
 			   struct mlx4_en_tx_ring **pring, int qpn, u32 size,
-			   u16 stride)
+			   u16 stride, int node)
 {
 	struct mlx4_en_dev *mdev = priv->mdev;
 	struct mlx4_en_tx_ring *ring;
 	int tmp;
 	int err;
 
-	ring = kzalloc(sizeof(*ring), GFP_KERNEL);
+	ring = kzalloc_node(sizeof(*ring), GFP_KERNEL, node);
 	if (!ring) {
-		en_err(priv, "Failed allocating TX ring\n");
-		return -ENOMEM;
+		ring = kzalloc(sizeof(*ring), GFP_KERNEL);
+		if (!ring) {
+			en_err(priv, "Failed allocating TX ring\n");
+			return -ENOMEM;
+		}
 	}
 
 	ring->size = size;
@@ -75,24 +78,33 @@ int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
 	inline_thold = min(inline_thold, MAX_INLINE);
 
 	tmp = size * sizeof(struct mlx4_en_tx_info);
-	ring->tx_info = vmalloc(tmp);
+	ring->tx_info = vmalloc_node(tmp, node);
 	if (!ring->tx_info) {
-		err = -ENOMEM;
-		goto err_ring;
+		ring->tx_info = vmalloc(tmp);
+		if (!ring->tx_info) {
+			err = -ENOMEM;
+			goto err_ring;
+		}
 	}
 
 	en_dbg(DRV, priv, "Allocated tx_info ring at addr:%p size:%d\n",
 		 ring->tx_info, tmp);
 
-	ring->bounce_buf = kmalloc(MAX_DESC_SIZE, GFP_KERNEL);
+	ring->bounce_buf = kmalloc_node(MAX_DESC_SIZE, GFP_KERNEL, node);
 	if (!ring->bounce_buf) {
-		err = -ENOMEM;
-		goto err_info;
+		ring->bounce_buf = kmalloc(MAX_DESC_SIZE, GFP_KERNEL);
+		if (!ring->bounce_buf) {
+			err = -ENOMEM;
+			goto err_info;
+		}
 	}
 	ring->buf_size = ALIGN(size * ring->stride, MLX4_EN_PAGE_SIZE);
 
+	/* Allocate HW buffers on provided NUMA node */
+	set_dev_node(&mdev->dev->pdev->dev, node);
 	err = mlx4_alloc_hwq_res(mdev->dev, &ring->wqres, ring->buf_size,
 				 2 * PAGE_SIZE);
+	set_dev_node(&mdev->dev->pdev->dev, mdev->dev->numa_node);
 	if (err) {
 		en_err(priv, "Failed allocating hwq resources\n");
 		goto err_bounce;
@@ -118,7 +130,7 @@ int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
 	}
 	ring->qp.event = mlx4_en_sqp_event;
 
-	err = mlx4_bf_alloc(mdev->dev, &ring->bf);
+	err = mlx4_bf_alloc(mdev->dev, &ring->bf, node);
 	if (err) {
 		en_dbg(DRV, priv, "working without blueflame (%d)", err);
 		ring->bf.uar = &mdev->priv_uar;
diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
index b2547ae07dfa..f3758de59c05 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h
@@ -705,7 +705,7 @@ void mlx4_en_free_resources(struct mlx4_en_priv *priv);
 int mlx4_en_alloc_resources(struct mlx4_en_priv *priv);
 
 int mlx4_en_create_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq **pcq,
-		      int entries, int ring, enum cq_type mode);
+		      int entries, int ring, enum cq_type mode, int node);
 void mlx4_en_destroy_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq **pcq);
 int mlx4_en_activate_cq(struct mlx4_en_priv *priv, struct mlx4_en_cq *cq,
 			int cq_idx);
@@ -719,7 +719,7 @@ netdev_tx_t mlx4_en_xmit(struct sk_buff *skb, struct net_device *dev);
 
 int mlx4_en_create_tx_ring(struct mlx4_en_priv *priv,
 			   struct mlx4_en_tx_ring **pring,
-			   int qpn, u32 size, u16 stride);
+			   int qpn, u32 size, u16 stride, int node);
 void mlx4_en_destroy_tx_ring(struct mlx4_en_priv *priv,
 			     struct mlx4_en_tx_ring **pring);
 int mlx4_en_activate_tx_ring(struct mlx4_en_priv *priv,
@@ -730,7 +730,7 @@ void mlx4_en_deactivate_tx_ring(struct mlx4_en_priv *priv,
 
 int mlx4_en_create_rx_ring(struct mlx4_en_priv *priv,
 			   struct mlx4_en_rx_ring **pring,
-			   u32 size, u16 stride);
+			   u32 size, u16 stride, int node);
 void mlx4_en_destroy_rx_ring(struct mlx4_en_priv *priv,
 			     struct mlx4_en_rx_ring **pring,
 			     u32 size, u16 stride);
diff --git a/drivers/net/ethernet/mellanox/mlx4/pd.c b/drivers/net/ethernet/mellanox/mlx4/pd.c
index 00f223acada7..84cfb40bf451 100644
--- a/drivers/net/ethernet/mellanox/mlx4/pd.c
+++ b/drivers/net/ethernet/mellanox/mlx4/pd.c
@@ -168,7 +168,7 @@ void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar)
 }
 EXPORT_SYMBOL_GPL(mlx4_uar_free);
 
-int mlx4_bf_alloc(struct mlx4_dev *dev, struct mlx4_bf *bf)
+int mlx4_bf_alloc(struct mlx4_dev *dev, struct mlx4_bf *bf, int node)
 {
 	struct mlx4_priv *priv = mlx4_priv(dev);
 	struct mlx4_uar *uar;
@@ -186,10 +186,13 @@ int mlx4_bf_alloc(struct mlx4_dev *dev, struct mlx4_bf *bf)
 			err = -ENOMEM;
 			goto out;
 		}
-		uar = kmalloc(sizeof *uar, GFP_KERNEL);
+		uar = kmalloc_node(sizeof(*uar), GFP_KERNEL, node);
 		if (!uar) {
-			err = -ENOMEM;
-			goto out;
+			uar = kmalloc(sizeof(*uar), GFP_KERNEL);
+			if (!uar) {
+				err = -ENOMEM;
+				goto out;
+			}
 		}
 		err = mlx4_uar_alloc(dev, uar);
 		if (err)
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 4cf0b0153639..7d3a523160ba 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -835,7 +835,7 @@ void mlx4_xrcd_free(struct mlx4_dev *dev, u32 xrcdn);
 
 int mlx4_uar_alloc(struct mlx4_dev *dev, struct mlx4_uar *uar);
 void mlx4_uar_free(struct mlx4_dev *dev, struct mlx4_uar *uar);
-int mlx4_bf_alloc(struct mlx4_dev *dev, struct mlx4_bf *bf);
+int mlx4_bf_alloc(struct mlx4_dev *dev, struct mlx4_bf *bf, int node);
 void mlx4_bf_free(struct mlx4_dev *dev, struct mlx4_bf *bf);
 
 int mlx4_mtt_init(struct mlx4_dev *dev, int npages, int page_shift,
-- 
cgit 


From b5ad795e52dae6e9f88b193a5e779b70005d005c Mon Sep 17 00:00:00 2001
From: Andreas Herrmann <andreas.herrmann@calxeda.com>
Date: Thu, 7 Nov 2013 12:07:56 +0100
Subject: net: calxedaxgmac: Fix panic caused by MTU change of active interface

Changing MTU size of an xgmac network interface while it is active can
cause a panic like

  skbuff: skb_over_panic: text:c03bc62c len:1090 put:1090 head:edfb6900 data:edfb6942 tail:0xedfb6d84 end:0xedfb6bc0 dev:eth0
  ------------[ cut here ]------------
  kernel BUG at net/core/skbuff.c:126!
  Internal error: Oops - BUG: 0 [#1] SMP ARM
  Modules linked in:
  CPU: 0 PID: 762 Comm: python Tainted: G        W    3.10.0-00015-g3e33cd7 #309
  task: edcfe000 ti: ed67e000 task.ti: ed67e000
  PC is at skb_panic+0x64/0x70
  LR is at wake_up_klogd+0x5c/0x68

This happens because xgmac_change_mtu modifies dev->mtu before the
network interface is quiesced. And thus there still might be buffers
in use which have a buffer size based on the old MTU.

To fix this I moved the change of dev->mtu after the call to
xgmac_stop.

Another modification is required (in xgmac_stop) to ensure that
xgmac_xmit is really not called anymore (xgmac_tx_complete might wake
up the queue again).

I've tested the fix by switching MTU size every second between 600 and
1500 while network traffic was going on. The test box survived a test
of several hours (until I've stopped it) whereas w/o this fix above
panic occurs after several minutes (at most).

Change since v1:
- remove call to netif_stop_queue at beginning of xgmac_stop
- use netif_tx_disable instead of locking+netif_stop_queue

Signed-off-by: Andreas Herrmann <andreas.herrmann@calxeda.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/calxeda/xgmac.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/calxeda/xgmac.c b/drivers/net/ethernet/calxeda/xgmac.c
index 48f52882a22b..4fc5c8ef5121 100644
--- a/drivers/net/ethernet/calxeda/xgmac.c
+++ b/drivers/net/ethernet/calxeda/xgmac.c
@@ -1060,13 +1060,13 @@ static int xgmac_stop(struct net_device *dev)
 {
 	struct xgmac_priv *priv = netdev_priv(dev);
 
-	netif_stop_queue(dev);
-
 	if (readl(priv->base + XGMAC_DMA_INTR_ENA))
 		napi_disable(&priv->napi);
 
 	writel(0, priv->base + XGMAC_DMA_INTR_ENA);
 
+	netif_tx_disable(dev);
+
 	/* Disable the MAC core */
 	xgmac_mac_disable(priv->base);
 
@@ -1370,11 +1370,8 @@ static int xgmac_change_mtu(struct net_device *dev, int new_mtu)
 	}
 
 	old_mtu = dev->mtu;
-	dev->mtu = new_mtu;
 
 	/* return early if the buffer sizes will not change */
-	if (old_mtu <= ETH_DATA_LEN && new_mtu <= ETH_DATA_LEN)
-		return 0;
 	if (old_mtu == new_mtu)
 		return 0;
 
@@ -1382,8 +1379,9 @@ static int xgmac_change_mtu(struct net_device *dev, int new_mtu)
 	if (!netif_running(dev))
 		return 0;
 
-	/* Bring the interface down and then back up */
+	/* Bring interface down, change mtu and bring interface back up */
 	xgmac_stop(dev);
+	dev->mtu = new_mtu;
 	return xgmac_open(dev);
 }
 
-- 
cgit 


From 0c7ddf36c29c3ce12f2d2931a357ccaa0861035a Mon Sep 17 00:00:00 2001
From: Mathias Krause <mathias.krause@secunet.com>
Date: Thu, 7 Nov 2013 14:18:24 +0100
Subject: net: move pskb_put() to core code

This function has usage beside IPsec so move it to the core skbuff code.
While doing so, give it some documentation and change its return type to
'unsigned char *' to be in line with skb_put().

Signed-off-by: Mathias Krause <mathias.krause@secunet.com>
Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/skbuff.h |  1 +
 include/net/esp.h      |  2 --
 net/core/skbuff.c      | 23 +++++++++++++++++++++++
 net/xfrm/xfrm_algo.c   | 13 -------------
 4 files changed, 24 insertions(+), 15 deletions(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 2e153b69d318..491dd6c2c6cc 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1417,6 +1417,7 @@ static inline void skb_set_tail_pointer(struct sk_buff *skb, const int offset)
 /*
  *	Add data to an sk_buff
  */
+unsigned char *pskb_put(struct sk_buff *skb, struct sk_buff *tail, int len);
 unsigned char *skb_put(struct sk_buff *skb, unsigned int len);
 static inline unsigned char *__skb_put(struct sk_buff *skb, unsigned int len)
 {
diff --git a/include/net/esp.h b/include/net/esp.h
index c92213c38312..a43be85aedc4 100644
--- a/include/net/esp.h
+++ b/include/net/esp.h
@@ -3,8 +3,6 @@
 
 #include <linux/skbuff.h>
 
-void *pskb_put(struct sk_buff *skb, struct sk_buff *tail, int len);
-
 struct ip_esp_hdr;
 
 static inline struct ip_esp_hdr *ip_esp_hdr(const struct sk_buff *skb)
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 3735fad5616e..2fbea08c4f50 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1263,6 +1263,29 @@ free_skb:
 }
 EXPORT_SYMBOL(skb_pad);
 
+/**
+ *	pskb_put - add data to the tail of a potentially fragmented buffer
+ *	@skb: start of the buffer to use
+ *	@tail: tail fragment of the buffer to use
+ *	@len: amount of data to add
+ *
+ *	This function extends the used data area of the potentially
+ *	fragmented buffer. @tail must be the last fragment of @skb -- or
+ *	@skb itself. If this would exceed the total buffer size the kernel
+ *	will panic. A pointer to the first byte of the extra data is
+ *	returned.
+ */
+
+unsigned char *pskb_put(struct sk_buff *skb, struct sk_buff *tail, int len)
+{
+	if (tail != skb) {
+		skb->data_len += len;
+		skb->len += len;
+	}
+	return skb_put(tail, len);
+}
+EXPORT_SYMBOL_GPL(pskb_put);
+
 /**
  *	skb_put - add data to a buffer
  *	@skb: buffer to use
diff --git a/net/xfrm/xfrm_algo.c b/net/xfrm/xfrm_algo.c
index ab4ef72f0b1d..debe733386f8 100644
--- a/net/xfrm/xfrm_algo.c
+++ b/net/xfrm/xfrm_algo.c
@@ -802,17 +802,4 @@ int xfrm_count_pfkey_enc_supported(void)
 }
 EXPORT_SYMBOL_GPL(xfrm_count_pfkey_enc_supported);
 
-#if defined(CONFIG_INET_ESP) || defined(CONFIG_INET_ESP_MODULE) || defined(CONFIG_INET6_ESP) || defined(CONFIG_INET6_ESP_MODULE)
-
-void *pskb_put(struct sk_buff *skb, struct sk_buff *tail, int len)
-{
-	if (tail != skb) {
-		skb->data_len += len;
-		skb->len += len;
-	}
-	return skb_put(tail, len);
-}
-EXPORT_SYMBOL_GPL(pskb_put);
-#endif
-
 MODULE_LICENSE("GPL");
-- 
cgit 


From 253c6daa343104c1278facd11cb5ecfc7554fb38 Mon Sep 17 00:00:00 2001
From: Mathias Krause <mathias.krause@secunet.com>
Date: Thu, 7 Nov 2013 14:18:25 +0100
Subject: caif: use pskb_put() instead of reimplementing its functionality

Also remove the warning for fragmented packets -- skb_cow_data() will
linearize the buffer, removing all fragments.

Signed-off-by: Mathias Krause <mathias.krause@secunet.com>
Cc: Dmitry Tarnyagin <dmitry.tarnyagin@lockless.no>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/caif/cfpkt_skbuff.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/net/caif/cfpkt_skbuff.c b/net/caif/cfpkt_skbuff.c
index 6493351f39c6..1be0b521ac49 100644
--- a/net/caif/cfpkt_skbuff.c
+++ b/net/caif/cfpkt_skbuff.c
@@ -203,20 +203,10 @@ int cfpkt_add_body(struct cfpkt *pkt, const void *data, u16 len)
 			PKT_ERROR(pkt, "cow failed\n");
 			return -EPROTO;
 		}
-		/*
-		 * Is the SKB non-linear after skb_cow_data()? If so, we are
-		 * going to add data to the last SKB, so we need to adjust
-		 * lengths of the top SKB.
-		 */
-		if (lastskb != skb) {
-			pr_warn("Packet is non-linear\n");
-			skb->len += len;
-			skb->data_len += len;
-		}
 	}
 
 	/* All set to put the last SKB and optionally write data there. */
-	to = skb_put(lastskb, len);
+	to = pskb_put(skb, lastskb, len);
 	if (likely(data))
 		memcpy(to, data, len);
 	return 0;
-- 
cgit 


From bc32383cd6496d595e6a25cdc7cff1da6b694462 Mon Sep 17 00:00:00 2001
From: Mathias Krause <mathias.krause@secunet.com>
Date: Thu, 7 Nov 2013 14:18:26 +0100
Subject: net: skbuff - kernel-doc fixes

Use "@" to refer to parameters in the kernel-doc description. According
to Documentation/kernel-doc-nano-HOWTO.txt "&" shall be used to refer to
structures only.

Signed-off-by: Mathias Krause <mathias.krause@secunet.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/skbuff.h |  2 +-
 net/core/skbuff.c      | 10 +++++-----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 491dd6c2c6cc..036ec7d8a83a 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1357,7 +1357,7 @@ static inline void __skb_fill_page_desc(struct sk_buff *skb, int i,
  * @size: the length of the data
  *
  * As per __skb_fill_page_desc() -- initialises the @i'th fragment of
- * @skb to point to &size bytes at offset @off within @page. In
+ * @skb to point to @size bytes at offset @off within @page. In
  * addition updates @skb such that @i is the last fragment.
  *
  * Does not take any additional reference on the fragment.
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 2fbea08c4f50..8c5197fe55a4 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1051,8 +1051,8 @@ EXPORT_SYMBOL(__pskb_copy);
  *	@ntail: room to add at tail
  *	@gfp_mask: allocation priority
  *
- *	Expands (or creates identical copy, if &nhead and &ntail are zero)
- *	header of skb. &sk_buff itself is not changed. &sk_buff MUST have
+ *	Expands (or creates identical copy, if @nhead and @ntail are zero)
+ *	header of @skb. &sk_buff itself is not changed. &sk_buff MUST have
  *	reference count of 1. Returns zero in the case of success or error,
  *	if expansion failed. In the last case, &sk_buff is not changed.
  *
@@ -2563,14 +2563,14 @@ EXPORT_SYMBOL(skb_prepare_seq_read);
  * @data: destination pointer for data to be returned
  * @st: state variable
  *
- * Reads a block of skb data at &consumed relative to the
+ * Reads a block of skb data at @consumed relative to the
  * lower offset specified to skb_prepare_seq_read(). Assigns
- * the head of the data block to &data and returns the length
+ * the head of the data block to @data and returns the length
  * of the block or 0 if the end of the skb data or the upper
  * offset has been reached.
  *
  * The caller is not required to consume all of the data
- * returned, i.e. &consumed is typically set to the number
+ * returned, i.e. @consumed is typically set to the number
  * of bytes already consumed and the next call to
  * skb_seq_read() will return the remaining part of the block.
  *
-- 
cgit 


From f2754114400afe38ad5ade3b588451c4f36a61af Mon Sep 17 00:00:00 2001
From: Eric Sandeen <sandeen@redhat.com>
Date: Thu, 7 Nov 2013 22:22:08 -0500
Subject: ext4: remove unreachable code after ext4_can_extents_be_merged()

Commit ec22ba8e ("ext4: disable merging of uninitialized extents")
ensured that if either extent under consideration is uninit, we
decline to merge, and ext4_can_extents_be_merged() returns false.

So there is no need for the caller to then test whether the
extent under consideration is unitialized; if it were, we
wouldn't have gotten that far.

The comments were also inaccurate; ext4_can_extents_be_merged()
no longer XORs the states, it fails if *either* is uninit.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Reviewed-by: Zheng Liu <wenqing.lz@taobao.com>
---
 fs/ext4/extents.c | 26 --------------------------
 1 file changed, 26 deletions(-)

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index de6d4674ba6e..35f65cf4f318 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -1715,7 +1715,6 @@ static int ext4_ext_try_to_merge_right(struct inode *inode,
 	struct ext4_extent_header *eh;
 	unsigned int depth, len;
 	int merge_done = 0;
-	int uninitialized = 0;
 
 	depth = ext_depth(inode);
 	BUG_ON(path[depth].p_hdr == NULL);
@@ -1725,12 +1724,8 @@ static int ext4_ext_try_to_merge_right(struct inode *inode,
 		if (!ext4_can_extents_be_merged(inode, ex, ex + 1))
 			break;
 		/* merge with next extent! */
-		if (ext4_ext_is_uninitialized(ex))
-			uninitialized = 1;
 		ex->ee_len = cpu_to_le16(ext4_ext_get_actual_len(ex)
 				+ ext4_ext_get_actual_len(ex + 1));
-		if (uninitialized)
-			ext4_ext_mark_uninitialized(ex);
 
 		if (ex + 1 < EXT_LAST_EXTENT(eh)) {
 			len = (EXT_LAST_EXTENT(eh) - ex - 1)
@@ -1885,7 +1880,6 @@ int ext4_ext_insert_extent(handle_t *handle, struct inode *inode,
 	struct ext4_ext_path *npath = NULL;
 	int depth, len, err;
 	ext4_lblk_t next;
-	unsigned uninitialized = 0;
 	int mb_flags = 0;
 
 	if (unlikely(ext4_ext_get_actual_len(newext) == 0)) {
@@ -1937,18 +1931,8 @@ int ext4_ext_insert_extent(handle_t *handle, struct inode *inode,
 			if (err)
 				return err;
 
-			/*
-			 * ext4_can_extents_be_merged should have checked
-			 * that either both extents are uninitialized, or
-			 * both aren't. Thus we need to check only one of
-			 * them here.
-			 */
-			if (ext4_ext_is_uninitialized(ex))
-				uninitialized = 1;
 			ex->ee_len = cpu_to_le16(ext4_ext_get_actual_len(ex)
 					+ ext4_ext_get_actual_len(newext));
-			if (uninitialized)
-				ext4_ext_mark_uninitialized(ex);
 			eh = path[depth].p_hdr;
 			nearex = ex;
 			goto merge;
@@ -1971,20 +1955,10 @@ prepend:
 			if (err)
 				return err;
 
-			/*
-			 * ext4_can_extents_be_merged should have checked
-			 * that either both extents are uninitialized, or
-			 * both aren't. Thus we need to check only one of
-			 * them here.
-			 */
-			if (ext4_ext_is_uninitialized(ex))
-				uninitialized = 1;
 			ex->ee_block = newext->ee_block;
 			ext4_ext_store_pblock(ex, ext4_ext_pblock(newext));
 			ex->ee_len = cpu_to_le16(ext4_ext_get_actual_len(ex)
 					+ ext4_ext_get_actual_len(newext));
-			if (uninitialized)
-				ext4_ext_mark_uninitialized(ex);
 			eh = path[depth].p_hdr;
 			nearex = ex;
 			goto merge;
-- 
cgit 


From fb51b5ef9c07844f80402702bd3d3002ceca5cd9 Mon Sep 17 00:00:00 2001
From: Changman Lee <cm224.lee@samsung.com>
Date: Thu, 7 Nov 2013 12:48:25 +0900
Subject: f2fs: cleanup waiting routine for writeback pages in cp

use genernal method supported by kernel

 o changes from v1
   If any waiter exists at end io, wake up it.

Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/checkpoint.c | 25 ++++++++++++++++---------
 fs/f2fs/f2fs.h       |  2 +-
 fs/f2fs/segment.c    |  5 +++--
 fs/f2fs/super.c      |  1 +
 4 files changed, 21 insertions(+), 12 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index d430157ffe60..5716e5eb4e8e 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -634,6 +634,21 @@ static void unblock_operations(struct f2fs_sb_info *sbi)
 	f2fs_unlock_all(sbi);
 }
 
+static void wait_on_all_pages_writeback(struct f2fs_sb_info *sbi)
+{
+	DEFINE_WAIT(wait);
+
+	for (;;) {
+		prepare_to_wait(&sbi->cp_wait, &wait, TASK_UNINTERRUPTIBLE);
+
+		if (!get_pages(sbi, F2FS_WRITEBACK))
+			break;
+
+		io_schedule();
+	}
+	finish_wait(&sbi->cp_wait, &wait);
+}
+
 static void do_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
 {
 	struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
@@ -743,15 +758,7 @@ static void do_checkpoint(struct f2fs_sb_info *sbi, bool is_umount)
 	f2fs_put_page(cp_page, 1);
 
 	/* wait for previous submitted node/meta pages writeback */
-	sbi->cp_task = current;
-	while (get_pages(sbi, F2FS_WRITEBACK)) {
-		set_current_state(TASK_UNINTERRUPTIBLE);
-		if (!get_pages(sbi, F2FS_WRITEBACK))
-			break;
-		io_schedule();
-	}
-	__set_current_state(TASK_RUNNING);
-	sbi->cp_task = NULL;
+	wait_on_all_pages_writeback(sbi);
 
 	filemap_fdatawait_range(sbi->node_inode->i_mapping, 0, LONG_MAX);
 	filemap_fdatawait_range(sbi->meta_inode->i_mapping, 0, LONG_MAX);
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 625eb4befad4..89dc7508faf2 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -372,7 +372,7 @@ struct f2fs_sb_info {
 	struct mutex writepages;		/* mutex for writepages() */
 	bool por_doing;				/* recovery is doing or not */
 	bool on_build_free_nids;		/* build_free_nids is doing */
-	struct task_struct *cp_task;		/* checkpoint task */
+	wait_queue_head_t cp_wait;
 
 	/* for orphan inode management */
 	struct list_head orphan_inode_list;	/* orphan inode list */
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index ff363e686b7e..86dc28949192 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -592,8 +592,9 @@ static void f2fs_end_io_write(struct bio *bio, int err)
 	if (p->is_sync)
 		complete(p->wait);
 
-	if (!get_pages(p->sbi, F2FS_WRITEBACK) && p->sbi->cp_task)
-		wake_up_process(p->sbi->cp_task);
+	if (!get_pages(p->sbi, F2FS_WRITEBACK) &&
+			!list_empty(&p->sbi->cp_wait.task_list))
+		wake_up(&p->sbi->cp_wait);
 
 	kfree(p);
 	bio_put(bio);
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index e42351cbe166..00e79df5a34f 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -876,6 +876,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
 	spin_lock_init(&sbi->stat_lock);
 	init_rwsem(&sbi->bio_sem);
 	init_rwsem(&sbi->cp_rwsem);
+	init_waitqueue_head(&sbi->cp_wait);
 	init_sb_info(sbi);
 
 	/* get an inode for meta space */
-- 
cgit 


From 1d15bd2034c9b0f9ac88fa0e4cd33e0d792b0bb0 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao2.yu@samsung.com>
Date: Thu, 7 Nov 2013 10:14:51 +0800
Subject: f2fs: fix memory leak after kobject init failed in fill_super

If we failed to init&add kobject when fill_super, stats info and proc object of
f2fs will not be released.
We should free them before we finish fill_super.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/super.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 00e79df5a34f..bafff72de8e8 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -975,12 +975,12 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
 		/* After POR, we can run background GC thread.*/
 		err = start_gc_thread(sbi);
 		if (err)
-			goto fail;
+			goto free_gc;
 	}
 
 	err = f2fs_build_stats(sbi);
 	if (err)
-		goto fail;
+		goto free_gc;
 
 	if (f2fs_proc_root)
 		sbi->s_proc = proc_mkdir(sb->s_id, f2fs_proc_root);
@@ -1006,6 +1006,12 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
 
 	return 0;
 fail:
+	if (sbi->s_proc) {
+		remove_proc_entry("segment_info", sbi->s_proc);
+		remove_proc_entry(sb->s_id, f2fs_proc_root);
+	}
+	f2fs_destroy_stats(sbi);
+free_gc:
 	stop_gc_thread(sbi);
 free_root_inode:
 	dput(sb->s_root);
-- 
cgit 


From dd1f723bf56bd96efc9d90e9e60dc511c79de48f Mon Sep 17 00:00:00 2001
From: Theodore Ts'o <tytso@mit.edu>
Date: Fri, 8 Nov 2013 00:14:53 -0500
Subject: ext4: use prandom_u32() instead of get_random_bytes()

Many of the uses of get_random_bytes() do not actually need
cryptographically secure random numbers.  Replace those uses with a
call to prandom_u32(), which is faster and which doesn't consume
entropy from the /dev/random driver.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 fs/ext4/ialloc.c | 2 +-
 fs/ext4/mmp.c    | 2 +-
 fs/ext4/super.c  | 7 ++-----
 3 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 137193ff389b..0ee59a6644e2 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -432,7 +432,7 @@ static int find_group_orlov(struct super_block *sb, struct inode *parent,
 			ext4fs_dirhash(qstr->name, qstr->len, &hinfo);
 			grp = hinfo.hash;
 		} else
-			get_random_bytes(&grp, sizeof(grp));
+			grp = prandom_u32();
 		parent_group = (unsigned)grp % ngroups;
 		for (i = 0; i < ngroups; i++) {
 			g = (parent_group + i) % ngroups;
diff --git a/fs/ext4/mmp.c b/fs/ext4/mmp.c
index 214461e42a05..04434ad3e8e0 100644
--- a/fs/ext4/mmp.c
+++ b/fs/ext4/mmp.c
@@ -259,7 +259,7 @@ static unsigned int mmp_new_seq(void)
 	u32 new_seq;
 
 	do {
-		get_random_bytes(&new_seq, sizeof(u32));
+		new_seq = prandom_u32();
 	} while (new_seq > EXT4_MMP_SEQ_MAX);
 
 	return new_seq;
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index d3a857bfae47..c977f4e4e63b 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -3068,7 +3068,6 @@ static struct ext4_li_request *ext4_li_request_new(struct super_block *sb,
 {
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
 	struct ext4_li_request *elr;
-	unsigned long rnd;
 
 	elr = kzalloc(sizeof(*elr), GFP_KERNEL);
 	if (!elr)
@@ -3083,10 +3082,8 @@ static struct ext4_li_request *ext4_li_request_new(struct super_block *sb,
 	 * spread the inode table initialization requests
 	 * better.
 	 */
-	get_random_bytes(&rnd, sizeof(rnd));
-	elr->lr_next_sched = jiffies + (unsigned long)rnd %
-			     (EXT4_DEF_LI_MAX_START_DELAY * HZ);
-
+	elr->lr_next_sched = jiffies + (prandom_u32() %
+				(EXT4_DEF_LI_MAX_START_DELAY * HZ));
 	return elr;
 }
 
-- 
cgit 


From 380702192f616df5b2ba704b85cc479a3da92c91 Mon Sep 17 00:00:00 2001
From: Kailang Yang <kailang@realtek.com>
Date: Fri, 1 Nov 2013 15:57:35 +0800
Subject: ALSA: hda/realtek - Make fixup regs persist after resume

Upon suspend / resume, the fixup register settings are lost because
sending HDA_FIXUP_ACT_PRE_PROBE is not part of the resume path. Instead,
write our registers in response to the HDA_FIXUP_ACT_INIT, which happens
after initial probe and upon resume.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index daf720502385..6a214662700e 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3503,6 +3503,8 @@ static void alc283_fixup_chromebook(struct hda_codec *codec,
 		/* Disable AA-loopback as it causes white noise */
 		spec->gen.mixer_nid = 0;
 		spec->gen.hp_automute_hook = alc283_hp_automute_hook;
+		break;
+	case HDA_FIXUP_ACT_INIT:
 		/* MIC2-VREF control */
 		/* Set to manual mode */
 		val = alc_read_coef_idx(codec, 0x06);
-- 
cgit 


From dcd607718385d02ce3741de225927a57f528f93b Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 7 Nov 2013 18:32:06 -0800
Subject: inet: fix a UFO regression

While testing virtio_net and skb_segment() changes, Hannes reported
that UFO was sending wrong frames.

It appears this was introduced by a recent commit :
8c3a897bfab1 ("inet: restore gso for vxlan")

The old condition to perform IP frag was :

tunnel = !!skb->encapsulation;
...
        if (!tunnel && proto == IPPROTO_UDP) {

So the new one should be :

udpfrag = !skb->encapsulation && proto == IPPROTO_UDP;
...
        if (udpfrag) {

Initialization of udpfrag must be done before call
to ops->callbacks.gso_segment(skb, features), as
skb_udp_tunnel_segment() clears skb->encapsulation

(We want udpfrag to be true for UFO, false for VXLAN)

With help from Alexei Starovoitov

Reported-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/af_inet.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 09d78d4a3cff..68af9aac91d0 100644
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -1299,6 +1299,9 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb,
 
 	segs = ERR_PTR(-EPROTONOSUPPORT);
 
+	/* Note : following gso_segment() might change skb->encapsulation */
+	udpfrag = !skb->encapsulation && proto == IPPROTO_UDP;
+
 	ops = rcu_dereference(inet_offloads[proto]);
 	if (likely(ops && ops->callbacks.gso_segment))
 		segs = ops->callbacks.gso_segment(skb, features);
@@ -1306,7 +1309,6 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb,
 	if (IS_ERR_OR_NULL(segs))
 		goto out;
 
-	udpfrag = !!skb->encapsulation && proto == IPPROTO_UDP;
 	skb = segs;
 	do {
 		iph = (struct iphdr *)(skb_mac_header(skb) + nhoff);
-- 
cgit 


From 6f62259b1a7696a335d5c3f2c89cce1d28912bf2 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Fri, 8 Nov 2013 00:45:01 -0200
Subject: scripts: kallsyms: Use %zu to print 'size_t'

Commit f3462aa95 (Kbuild: Handle longer symbols in kallsyms.c) introduced the
following warning on ARM:

scripts/kallsyms.c:121:4: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t' [-Wformat]

Use %zu to print 'size_t'.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/kallsyms.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index 967522ab4f39..48afa2020b00 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -112,7 +112,7 @@ static int read_symbol(FILE *in, struct sym_entry *s)
 		return -1;
 	}
 	if (strlen(str) > KSYM_NAME_LEN) {
-		fprintf(stderr, "Symbol %s too long for kallsyms (%lu vs %d).\n"
+		fprintf(stderr, "Symbol %s too long for kallsyms (%zu vs %d).\n"
                                 "Please increase KSYM_NAME_LEN both in kernel and kallsyms.c\n",
 			str, strlen(str), KSYM_NAME_LEN);
 		return -1;
-- 
cgit 


From 6cf3a6eff77273a55b996a5a43f342b150cfba09 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Thu, 7 Nov 2013 12:09:51 +1100
Subject: scripts/tags.sh: remove obsolete __devinit[const|data]

This removes the use of __devinitconst and __devinitdata in scripts/tags.sh,
which were removed in 3.8.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 scripts/tags.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/tags.sh b/scripts/tags.sh
index f1bcfc11cc72..58c455929091 100755
--- a/scripts/tags.sh
+++ b/scripts/tags.sh
@@ -149,8 +149,8 @@ dogtags()
 exuberant()
 {
 	all_target_sources | xargs $1 -a                        \
-	-I __initdata,__exitdata,__initconst,__devinitdata	\
-	-I __devinitconst,__cpuinitdata,__initdata_memblock	\
+	-I __initdata,__exitdata,__initconst,			\
+	-I __cpuinitdata,__initdata_memblock			\
 	-I __refdata,__attribute,__maybe_unused,__always_unused \
 	-I __acquires,__releases,__deprecated			\
 	-I __read_mostly,__aligned,____cacheline_aligned        \
-- 
cgit 


From 10227a94874435b038d5303ca05c1e158927084b Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Fri, 8 Nov 2013 00:55:00 -0200
Subject: ASoC: fsl: imx-pcm-fiq: Remove unused 'runtime' variable

Commit 68f9672b (ASoC: fsl: imx-pcm-fiq: remove bogus period delta calculation)
introduced the following build warning:

sound/soc/fsl/imx-pcm-fiq.c:53:26: warning: unused variable 'runtime' [-Wunused-variable]

Remove the unused 'runtime' variable.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Oskar Schirmer <oskar@scara.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/imx-pcm-fiq.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sound/soc/fsl/imx-pcm-fiq.c b/sound/soc/fsl/imx-pcm-fiq.c
index 94720a6dd7b6..10e330514ed8 100644
--- a/sound/soc/fsl/imx-pcm-fiq.c
+++ b/sound/soc/fsl/imx-pcm-fiq.c
@@ -50,7 +50,6 @@ static enum hrtimer_restart snd_hrtimer_callback(struct hrtimer *hrt)
 	struct imx_pcm_runtime_data *iprtd =
 		container_of(hrt, struct imx_pcm_runtime_data, hrt);
 	struct snd_pcm_substream *substream = iprtd->substream;
-	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct pt_regs regs;
 
 	if (!atomic_read(&iprtd->running))
-- 
cgit 


From ea8e5e591801b0d0c25dc0a0f1f5b508be7004cb Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 8 Nov 2013 12:54:44 +0300
Subject: ASoC: fsl: imx-wm8962: remove an unneeded check

"data->codec_clk" can't be an ERR_PTR here so I have removed the
superflous check.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/imx-wm8962.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/soc/fsl/imx-wm8962.c b/sound/soc/fsl/imx-wm8962.c
index 8e5b2c6a16d9..f7be44ad443a 100644
--- a/sound/soc/fsl/imx-wm8962.c
+++ b/sound/soc/fsl/imx-wm8962.c
@@ -279,8 +279,7 @@ static int imx_wm8962_probe(struct platform_device *pdev)
 	return 0;
 
 clk_fail:
-	if (!IS_ERR(data->codec_clk))
-		clk_disable_unprepare(data->codec_clk);
+	clk_disable_unprepare(data->codec_clk);
 fail:
 	if (ssi_np)
 		of_node_put(ssi_np);
-- 
cgit 


From 51387306b5c2b0c9eb1e2556de1b37267bb2b583 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 8 Nov 2013 12:45:33 +0300
Subject: metag: off by one in setup_bootmem_node()

If "nid == MAX_NUMNODES" then we write beyond the end of the node_data[]
array.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
---
 arch/metag/mm/numa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/metag/mm/numa.c b/arch/metag/mm/numa.c
index 9ae578c9b620..b172aa45fcf8 100644
--- a/arch/metag/mm/numa.c
+++ b/arch/metag/mm/numa.c
@@ -34,7 +34,7 @@ void __init setup_bootmem_node(int nid, unsigned long start, unsigned long end)
 	unsigned long pgdat_paddr;
 
 	/* Don't allow bogus node assignment */
-	BUG_ON(nid > MAX_NUMNODES || nid <= 0);
+	BUG_ON(nid >= MAX_NUMNODES || nid <= 0);
 
 	start_pfn = start >> PAGE_SHIFT;
 	end_pfn = end >> PAGE_SHIFT;
-- 
cgit 


From c6c3795eefd17a7e5932644c19b25af3e5539929 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Fri, 1 Nov 2013 14:24:21 -0300
Subject: [media] radio-si470x-i2c: fix a warning on ia64

on ia64, those warnings appear:
	drivers/media/radio/si470x/radio-si470x-i2c.c:470:12: warning: 'si470x_i2c_suspend' defined but not used [-Wunused-function]
	drivers/media/radio/si470x/radio-si470x-i2c.c:487:12: warning: 'si470x_i2c_resume' defined but not used [-Wunused-function]
They're caused because the PM logic uses this define:
	#define SET_SYSTEM_SLEEP_PM_OPS()
With is only defined for CONFIG_PM_SLEEP.
So, change the logic there to test for CONFIG_PM_SLEEP, instead of
CONFIG_PM.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/radio/si470x/radio-si470x-i2c.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/media/radio/si470x/radio-si470x-i2c.c b/drivers/media/radio/si470x/radio-si470x-i2c.c
index e5fc9acd0c4f..2a497c80c77f 100644
--- a/drivers/media/radio/si470x/radio-si470x-i2c.c
+++ b/drivers/media/radio/si470x/radio-si470x-i2c.c
@@ -463,7 +463,7 @@ static int si470x_i2c_remove(struct i2c_client *client)
 }
 
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 /*
  * si470x_i2c_suspend - suspend the device
  */
@@ -509,7 +509,7 @@ static struct i2c_driver si470x_i2c_driver = {
 	.driver = {
 		.name		= "si470x",
 		.owner		= THIS_MODULE,
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 		.pm		= &si470x_i2c_pm,
 #endif
 	},
-- 
cgit 


From 221cefa41a31e5dc05d52ec2cd457928eed2b3be Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Fri, 1 Nov 2013 14:37:17 -0300
Subject: [media] rc: Fir warnings on m68k arch

Fix the following warnings:
	drivers/media/rc/fintek-cir.c: In function 'fintek_cr_write':
	drivers/media/rc/fintek-cir.c:45:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/fintek-cir.c:46:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/fintek-cir.c: In function 'fintek_cr_read':
	drivers/media/rc/fintek-cir.c:54:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/fintek-cir.c:55:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/fintek-cir.c: In function 'fintek_config_mode_enable':
	drivers/media/rc/fintek-cir.c:80:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/fintek-cir.c:81:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/fintek-cir.c: In function 'fintek_config_mode_disable':
	drivers/media/rc/fintek-cir.c:87:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/nuvoton-cir.c: In function 'nvt_cr_write':
	drivers/media/rc/nuvoton-cir.c:45:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/nuvoton-cir.c:46:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/nuvoton-cir.c: In function 'nvt_cr_read':
	drivers/media/rc/nuvoton-cir.c:52:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/nuvoton-cir.c:53:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/nuvoton-cir.c: In function 'nvt_efm_enable':
	drivers/media/rc/nuvoton-cir.c:74:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/nuvoton-cir.c:75:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/nuvoton-cir.c: In function 'nvt_efm_disable':
	drivers/media/rc/nuvoton-cir.c:81:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/nuvoton-cir.c: In function 'nvt_select_logical_dev':
	drivers/media/rc/nuvoton-cir.c:91:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
	drivers/media/rc/nuvoton-cir.c:92:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
Those are caused because the I/O port is u32, instead of u8.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/rc/fintek-cir.h  | 4 ++--
 drivers/media/rc/nuvoton-cir.h | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/media/rc/fintek-cir.h b/drivers/media/rc/fintek-cir.h
index 82516a1d39b0..b698f3d2ced9 100644
--- a/drivers/media/rc/fintek-cir.h
+++ b/drivers/media/rc/fintek-cir.h
@@ -76,8 +76,8 @@ struct fintek_dev {
 	} tx;
 
 	/* Config register index/data port pair */
-	u8 cr_ip;
-	u8 cr_dp;
+	u32 cr_ip;
+	u32 cr_dp;
 
 	/* hardware I/O settings */
 	unsigned long cir_addr;
diff --git a/drivers/media/rc/nuvoton-cir.h b/drivers/media/rc/nuvoton-cir.h
index 7c3674ff5ea2..07e83108df0f 100644
--- a/drivers/media/rc/nuvoton-cir.h
+++ b/drivers/media/rc/nuvoton-cir.h
@@ -84,8 +84,8 @@ struct nvt_dev {
 	} tx;
 
 	/* EFER Config register index/data pair */
-	u8 cr_efir;
-	u8 cr_efdr;
+	u32 cr_efir;
+	u32 cr_efdr;
 
 	/* hardware I/O settings */
 	unsigned long cir_addr;
-- 
cgit 


From ce01cbdc54d6869f0ee3230be2b8cfc9fd1366f3 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Fri, 1 Nov 2013 15:39:53 -0300
Subject: [media] uvc/lirc_serial: Fix some warnings on parisc arch

On this arch, usec is not unsigned long. So, we need to typecast,
in order to remove those warnings:
	drivers/media/usb/uvc/uvc_video.c: In function 'uvc_video_clock_update':
	drivers/media/usb/uvc/uvc_video.c:678:2: warning: format '%lu' expects argument of type 'long unsigned int', but argument 9 has type '__kernel_suseconds_t' [-Wformat]
	drivers/staging/media/lirc/lirc_serial.c: In function 'irq_handler':
	drivers/staging/media/lirc/lirc_serial.c:707:5: warning: format '%lx' expects argument of type 'long unsigned int', but argument 6 has type '__kernel_suseconds_t' [-Wformat]
	drivers/staging/media/lirc/lirc_serial.c:707:5: warning: format '%lx' expects argument of type 'long unsigned int', but argument 7 has type '__kernel_suseconds_t' [-Wformat]
	drivers/staging/media/lirc/lirc_serial.c:719:5: warning: format '%lx' expects argument of type 'long unsigned int', but argument 6 has type '__kernel_suseconds_t' [-Wformat]
	drivers/staging/media/lirc/lirc_serial.c:719:5: warning: format '%lx' expects argument of type 'long unsigned int', but argument 7 has type '__kernel_suseconds_t' [-Wformat]
	drivers/staging/media/lirc/lirc_serial.c:728:6: warning: format '%lx' expects argument of type 'long unsigned int', but argument 6 has type '__kernel_suseconds_t' [-Wformat]
	drivers/staging/media/lirc/lirc_serial.c:728:6: warning: format '%lx' expects argument of type 'long unsigned int', but argument 7 has type '__kernel_suseconds_t' [-Wformat]

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/uvc/uvc_video.c        | 3 ++-
 drivers/staging/media/lirc/lirc_serial.c | 9 ++++++---
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c
index 3394c3432011..899cb6d1c4a4 100644
--- a/drivers/media/usb/uvc/uvc_video.c
+++ b/drivers/media/usb/uvc/uvc_video.c
@@ -680,7 +680,8 @@ void uvc_video_clock_update(struct uvc_streaming *stream,
 		  stream->dev->name,
 		  sof >> 16, div_u64(((u64)sof & 0xffff) * 1000000LLU, 65536),
 		  y, ts.tv_sec, ts.tv_nsec / NSEC_PER_USEC,
-		  v4l2_buf->timestamp.tv_sec, v4l2_buf->timestamp.tv_usec,
+		  v4l2_buf->timestamp.tv_sec,
+		  (unsigned long)v4l2_buf->timestamp.tv_usec,
 		  x1, first->host_sof, first->dev_sof,
 		  x2, last->host_sof, last->dev_sof, y1, y2);
 
diff --git a/drivers/staging/media/lirc/lirc_serial.c b/drivers/staging/media/lirc/lirc_serial.c
index af08e677b60f..7b3be2346b4b 100644
--- a/drivers/staging/media/lirc/lirc_serial.c
+++ b/drivers/staging/media/lirc/lirc_serial.c
@@ -707,7 +707,8 @@ static irqreturn_t irq_handler(int i, void *blah)
 				pr_warn("ignoring spike: %d %d %lx %lx %lx %lx\n",
 					dcd, sense,
 					tv.tv_sec, lasttv.tv_sec,
-					tv.tv_usec, lasttv.tv_usec);
+					(unsigned long)tv.tv_usec,
+					(unsigned long)lasttv.tv_usec);
 				continue;
 			}
 
@@ -719,7 +720,8 @@ static irqreturn_t irq_handler(int i, void *blah)
 				pr_warn("%d %d %lx %lx %lx %lx\n",
 					dcd, sense,
 					tv.tv_sec, lasttv.tv_sec,
-					tv.tv_usec, lasttv.tv_usec);
+					(unsigned long)tv.tv_usec,
+					(unsigned long)lasttv.tv_usec);
 				data = PULSE_MASK;
 			} else if (deltv > 15) {
 				data = PULSE_MASK; /* really long time */
@@ -728,7 +730,8 @@ static irqreturn_t irq_handler(int i, void *blah)
 					pr_warn("AIEEEE: %d %d %lx %lx %lx %lx\n",
 						dcd, sense,
 						tv.tv_sec, lasttv.tv_sec,
-						tv.tv_usec, lasttv.tv_usec);
+						(unsigned long)tv.tv_usec,
+						(unsigned long)lasttv.tv_usec);
 					/*
 					 * detecting pulse while this
 					 * MUST be a space!
-- 
cgit 


From 9736a89dafe07359d9c86bf9c3b815a250b354bc Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sat, 2 Nov 2013 04:29:42 -0300
Subject: [media] s5h1420: Don't use dynamic static allocation

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/dvb-frontends/s5h1420.c:851:1: warning: 's5h1420_tuner_i2c_tuner_xfer' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer.
In the specific case of this frontend, only ttpci uses it. The maximum
number of messages there is two, on I2C read operations. As the logic
can add an extra operation, change the size to 3.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/dvb-frontends/s5h1420.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/media/dvb-frontends/s5h1420.c b/drivers/media/dvb-frontends/s5h1420.c
index e2fec9ebf947..93eeaf7118fd 100644
--- a/drivers/media/dvb-frontends/s5h1420.c
+++ b/drivers/media/dvb-frontends/s5h1420.c
@@ -836,9 +836,16 @@ static u32 s5h1420_tuner_i2c_func(struct i2c_adapter *adapter)
 static int s5h1420_tuner_i2c_tuner_xfer(struct i2c_adapter *i2c_adap, struct i2c_msg msg[], int num)
 {
 	struct s5h1420_state *state = i2c_get_adapdata(i2c_adap);
-	struct i2c_msg m[1 + num];
+	struct i2c_msg m[3];
 	u8 tx_open[2] = { CON_1, state->CON_1_val | 1 }; /* repeater stops once there was a stop condition */
 
+	if (1 + num > ARRAY_SIZE(m)) {
+		printk(KERN_WARNING
+		       "%s: i2c xfer: num=%d is too big!\n",
+		       KBUILD_MODNAME, num);
+		return  -EOPNOTSUPP;
+	}
+
 	memset(m, 0, sizeof(struct i2c_msg) * (1 + num));
 
 	m[0].addr = state->config->demod_address;
@@ -847,7 +854,7 @@ static int s5h1420_tuner_i2c_tuner_xfer(struct i2c_adapter *i2c_adap, struct i2c
 
 	memcpy(&m[1], msg, sizeof(struct i2c_msg) * num);
 
-	return i2c_transfer(state->i2c, m, 1+num) == 1 + num ? num : -EIO;
+	return i2c_transfer(state->i2c, m, 1 + num) == 1 + num ? num : -EIO;
 }
 
 static struct i2c_algorithm s5h1420_tuner_i2c_algo = {
-- 
cgit 


From 8393796dfa4cf5dffcceec464c7789bec3a2f471 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sat, 2 Nov 2013 05:05:18 -0300
Subject: [media] dvb-frontends: Don't use dynamic static allocation

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/dvb-frontends/bcm3510.c:230:1: warning: 'bcm3510_do_hab_cmd' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/itd1000.c:69:1: warning: 'itd1000_write_regs.constprop.0' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/mt312.c:126:1: warning: 'mt312_write' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/nxt200x.c:111:1: warning: 'nxt200x_writebytes' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/stb6100.c:216:1: warning: 'stb6100_write_reg_range.constprop.3' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/stv6110.c:98:1: warning: 'stv6110_write_regs' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/stv6110x.c:85:1: warning: 'stv6110x_write_regs' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/tda18271c2dd.c:147:1: warning: 'WriteRegs' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/zl10039.c:119:1: warning: 'zl10039_write' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer. Considering that I2C
transfers are generally limited, and that devices used on USB has a
max data length of 64 bytes for the control URBs.
So, it seem safe to use 64 bytes as the hard limit for all those devices.
 On most cases, the limit is a way lower than that, but this limit
is small enough to not affect the Kernel stack, and it is a no brain
limit, as using smaller ones would require to either carefully each
driver or to take a look on each datasheet.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/dvb-frontends/bcm3510.c      | 15 ++++++++++++++-
 drivers/media/dvb-frontends/itd1000.c      | 13 ++++++++++++-
 drivers/media/dvb-frontends/mt312.c        | 10 +++++++++-
 drivers/media/dvb-frontends/nxt200x.c      | 11 ++++++++++-
 drivers/media/dvb-frontends/stb6100.c      | 11 ++++++++++-
 drivers/media/dvb-frontends/stv6110.c      | 12 +++++++++++-
 drivers/media/dvb-frontends/stv6110x.c     | 13 ++++++++++++-
 drivers/media/dvb-frontends/tda18271c2dd.c | 14 ++++++++++++--
 drivers/media/dvb-frontends/zl10039.c      | 12 +++++++++++-
 9 files changed, 101 insertions(+), 10 deletions(-)

diff --git a/drivers/media/dvb-frontends/bcm3510.c b/drivers/media/dvb-frontends/bcm3510.c
index 1b77909c0c71..39a29dd29519 100644
--- a/drivers/media/dvb-frontends/bcm3510.c
+++ b/drivers/media/dvb-frontends/bcm3510.c
@@ -44,6 +44,9 @@
 #include "bcm3510.h"
 #include "bcm3510_priv.h"
 
+/* Max transfer size done by bcm3510_do_hab_cmd() function */
+#define MAX_XFER_SIZE	128
+
 struct bcm3510_state {
 
 	struct i2c_adapter* i2c;
@@ -201,9 +204,19 @@ static int bcm3510_hab_send_request(struct bcm3510_state *st, u8 *buf, int len)
 
 static int bcm3510_do_hab_cmd(struct bcm3510_state *st, u8 cmd, u8 msgid, u8 *obuf, u8 olen, u8 *ibuf, u8 ilen)
 {
-	u8 ob[olen+2],ib[ilen+2];
+	u8 ob[MAX_XFER_SIZE], ib[MAX_XFER_SIZE];
 	int ret = 0;
 
+	if (ilen + 2 > sizeof(ib)) {
+		deb_hab("do_hab_cmd: ilen=%d is too big!\n", ilen);
+		return -EINVAL;
+	}
+
+	if (olen + 2 > sizeof(ob)) {
+		deb_hab("do_hab_cmd: olen=%d is too big!\n", olen);
+		return -EINVAL;
+	}
+
 	ob[0] = cmd;
 	ob[1] = msgid;
 	memcpy(&ob[2],obuf,olen);
diff --git a/drivers/media/dvb-frontends/itd1000.c b/drivers/media/dvb-frontends/itd1000.c
index c1c3400b2173..cadcae4cff89 100644
--- a/drivers/media/dvb-frontends/itd1000.c
+++ b/drivers/media/dvb-frontends/itd1000.c
@@ -31,6 +31,9 @@
 #include "itd1000.h"
 #include "itd1000_priv.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 static int debug;
 module_param(debug, int, 0644);
 MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
@@ -52,10 +55,18 @@ MODULE_PARM_DESC(debug, "Turn on/off debugging (default:off).");
 /* don't write more than one byte with flexcop behind */
 static int itd1000_write_regs(struct itd1000_state *state, u8 reg, u8 v[], u8 len)
 {
-	u8 buf[1+len];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg msg = {
 		.addr = state->cfg->i2c_address, .flags = 0, .buf = buf, .len = len+1
 	};
+
+	if (1 + len > sizeof(buf)) {
+		printk(KERN_WARNING
+		       "itd1000: i2c wr reg=%04x: len=%d is too big!\n",
+		       reg, len);
+		return -EINVAL;
+	}
+
 	buf[0] = reg;
 	memcpy(&buf[1], v, len);
 
diff --git a/drivers/media/dvb-frontends/mt312.c b/drivers/media/dvb-frontends/mt312.c
index ec388c1d6913..a74ac0ddb833 100644
--- a/drivers/media/dvb-frontends/mt312.c
+++ b/drivers/media/dvb-frontends/mt312.c
@@ -36,6 +36,8 @@
 #include "mt312_priv.h"
 #include "mt312.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
 
 struct mt312_state {
 	struct i2c_adapter *i2c;
@@ -96,9 +98,15 @@ static int mt312_write(struct mt312_state *state, const enum mt312_reg_addr reg,
 		       const u8 *src, const size_t count)
 {
 	int ret;
-	u8 buf[count + 1];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg msg;
 
+	if (1 + count > sizeof(buf)) {
+		printk(KERN_WARNING
+		       "mt312: write: len=%zd is too big!\n", count);
+		return -EINVAL;
+	}
+
 	if (debug) {
 		int i;
 		dprintk("W(%d):", reg & 0x7f);
diff --git a/drivers/media/dvb-frontends/nxt200x.c b/drivers/media/dvb-frontends/nxt200x.c
index 8e288940a61f..fbca9856313a 100644
--- a/drivers/media/dvb-frontends/nxt200x.c
+++ b/drivers/media/dvb-frontends/nxt200x.c
@@ -39,6 +39,9 @@
  */
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 #define NXT2002_DEFAULT_FIRMWARE "dvb-fe-nxt2002.fw"
 #define NXT2004_DEFAULT_FIRMWARE "dvb-fe-nxt2004.fw"
 #define CRC_CCIT_MASK 0x1021
@@ -95,10 +98,16 @@ static int i2c_readbytes(struct nxt200x_state *state, u8 addr, u8 *buf, u8 len)
 static int nxt200x_writebytes (struct nxt200x_state* state, u8 reg,
 			       const u8 *buf, u8 len)
 {
-	u8 buf2 [len+1];
+	u8 buf2[MAX_XFER_SIZE];
 	int err;
 	struct i2c_msg msg = { .addr = state->config->demod_address, .flags = 0, .buf = buf2, .len = len + 1 };
 
+	if (1 + len > sizeof(buf2)) {
+		pr_warn("%s: i2c wr reg=%04x: len=%d is too big!\n",
+			 __func__, reg, len);
+		return -EINVAL;
+	}
+
 	buf2[0] = reg;
 	memcpy(&buf2[1], buf, len);
 
diff --git a/drivers/media/dvb-frontends/stb6100.c b/drivers/media/dvb-frontends/stb6100.c
index 45f9523f968f..cea175d19890 100644
--- a/drivers/media/dvb-frontends/stb6100.c
+++ b/drivers/media/dvb-frontends/stb6100.c
@@ -31,6 +31,8 @@
 static unsigned int verbose;
 module_param(verbose, int, 0644);
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
 
 #define FE_ERROR		0
 #define FE_NOTICE		1
@@ -183,7 +185,7 @@ static int stb6100_read_reg(struct stb6100_state *state, u8 reg)
 static int stb6100_write_reg_range(struct stb6100_state *state, u8 buf[], int start, int len)
 {
 	int rc;
-	u8 cmdbuf[len + 1];
+	u8 cmdbuf[MAX_XFER_SIZE];
 	struct i2c_msg msg = {
 		.addr	= state->config->tuner_address,
 		.flags	= 0,
@@ -191,6 +193,13 @@ static int stb6100_write_reg_range(struct stb6100_state *state, u8 buf[], int st
 		.len	= len + 1
 	};
 
+	if (1 + len > sizeof(buf)) {
+		printk(KERN_WARNING
+		       "%s: i2c wr: len=%d is too big!\n",
+		       KBUILD_MODNAME, len);
+		return -EINVAL;
+	}
+
 	if (unlikely(start < 1 || start + len > STB6100_NUMREGS)) {
 		dprintk(verbose, FE_ERROR, 1, "Invalid register range %d:%d",
 			start, len);
diff --git a/drivers/media/dvb-frontends/stv6110.c b/drivers/media/dvb-frontends/stv6110.c
index 20b5fa92c53e..b1425830a24e 100644
--- a/drivers/media/dvb-frontends/stv6110.c
+++ b/drivers/media/dvb-frontends/stv6110.c
@@ -30,6 +30,9 @@
 
 #include "stv6110.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 static int debug;
 
 struct stv6110_priv {
@@ -68,7 +71,7 @@ static int stv6110_write_regs(struct dvb_frontend *fe, u8 buf[],
 {
 	struct stv6110_priv *priv = fe->tuner_priv;
 	int rc;
-	u8 cmdbuf[len + 1];
+	u8 cmdbuf[MAX_XFER_SIZE];
 	struct i2c_msg msg = {
 		.addr	= priv->i2c_address,
 		.flags	= 0,
@@ -78,6 +81,13 @@ static int stv6110_write_regs(struct dvb_frontend *fe, u8 buf[],
 
 	dprintk("%s\n", __func__);
 
+	if (1 + len > sizeof(cmdbuf)) {
+		printk(KERN_WARNING
+		       "%s: i2c wr: len=%d is too big!\n",
+		       KBUILD_MODNAME, len);
+		return -EINVAL;
+	}
+
 	if (start + len > 8)
 		return -EINVAL;
 
diff --git a/drivers/media/dvb-frontends/stv6110x.c b/drivers/media/dvb-frontends/stv6110x.c
index f36cab12bdc7..e66154e5c1d7 100644
--- a/drivers/media/dvb-frontends/stv6110x.c
+++ b/drivers/media/dvb-frontends/stv6110x.c
@@ -32,6 +32,9 @@
 #include "stv6110x.h"
 #include "stv6110x_priv.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 static unsigned int verbose;
 module_param(verbose, int, 0644);
 MODULE_PARM_DESC(verbose, "Set Verbosity level");
@@ -61,7 +64,8 @@ static int stv6110x_write_regs(struct stv6110x_state *stv6110x, int start, u8 da
 {
 	int ret;
 	const struct stv6110x_config *config = stv6110x->config;
-	u8 buf[len + 1];
+	u8 buf[MAX_XFER_SIZE];
+
 	struct i2c_msg msg = {
 		.addr = config->addr,
 		.flags = 0,
@@ -69,6 +73,13 @@ static int stv6110x_write_regs(struct stv6110x_state *stv6110x, int start, u8 da
 		.len = len + 1
 	};
 
+	if (1 + len > sizeof(buf)) {
+		printk(KERN_WARNING
+		       "%s: i2c wr: len=%d is too big!\n",
+		       KBUILD_MODNAME, len);
+		return -EINVAL;
+	}
+
 	if (start + len > 8)
 		return -EINVAL;
 
diff --git a/drivers/media/dvb-frontends/tda18271c2dd.c b/drivers/media/dvb-frontends/tda18271c2dd.c
index d281f77d5c28..2c54586ac07f 100644
--- a/drivers/media/dvb-frontends/tda18271c2dd.c
+++ b/drivers/media/dvb-frontends/tda18271c2dd.c
@@ -34,6 +34,9 @@
 #include "dvb_frontend.h"
 #include "tda18271c2dd.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 struct SStandardParam {
 	s32   m_IFFrequency;
 	u32   m_BandWidth;
@@ -139,11 +142,18 @@ static int i2c_write(struct i2c_adapter *adap, u8 adr, u8 *data, int len)
 static int WriteRegs(struct tda_state *state,
 		     u8 SubAddr, u8 *Regs, u16 nRegs)
 {
-	u8 data[nRegs+1];
+	u8 data[MAX_XFER_SIZE];
+
+	if (1 + nRegs > sizeof(data)) {
+		printk(KERN_WARNING
+		       "%s: i2c wr: len=%d is too big!\n",
+		       KBUILD_MODNAME, nRegs);
+		return -EINVAL;
+	}
 
 	data[0] = SubAddr;
 	memcpy(data + 1, Regs, nRegs);
-	return i2c_write(state->i2c, state->adr, data, nRegs+1);
+	return i2c_write(state->i2c, state->adr, data, nRegs + 1);
 }
 
 static int WriteReg(struct tda_state *state, u8 SubAddr, u8 Reg)
diff --git a/drivers/media/dvb-frontends/zl10039.c b/drivers/media/dvb-frontends/zl10039.c
index eff9c5fde50a..91b6b2e9b792 100644
--- a/drivers/media/dvb-frontends/zl10039.c
+++ b/drivers/media/dvb-frontends/zl10039.c
@@ -30,6 +30,9 @@
 
 static int debug;
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 #define dprintk(args...) \
 	do { \
 		if (debug) \
@@ -98,7 +101,7 @@ static int zl10039_write(struct zl10039_state *state,
 			const enum zl10039_reg_addr reg, const u8 *src,
 			const size_t count)
 {
-	u8 buf[count + 1];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg msg = {
 		.addr = state->i2c_addr,
 		.flags = 0,
@@ -106,6 +109,13 @@ static int zl10039_write(struct zl10039_state *state,
 		.len = count + 1,
 	};
 
+	if (1 + count > sizeof(buf)) {
+		printk(KERN_WARNING
+		       "%s: i2c wr reg=%04x: len=%zd is too big!\n",
+		       KBUILD_MODNAME, reg, count);
+		return -EINVAL;
+	}
+
 	dprintk("%s\n", __func__);
 	/* Write register address and data in one go */
 	buf[0] = reg;
-- 
cgit 


From 37ebaf6891ee81687bb558e8375c0712d8264ed8 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sat, 2 Nov 2013 05:11:47 -0300
Subject: [media] dvb-frontends: Don't use dynamic static allocation

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/dvb-frontends/af9013.c:77:1: warning: 'af9013_wr_regs_i2c' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/af9033.c:188:1: warning: 'af9033_wr_reg_val_tab' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/af9033.c:68:1: warning: 'af9033_wr_regs' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/bcm3510.c:230:1: warning: 'bcm3510_do_hab_cmd' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/cxd2820r_core.c:84:1: warning: 'cxd2820r_rd_regs_i2c.isra.1' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/rtl2830.c:56:1: warning: 'rtl2830_wr' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/rtl2832.c:187:1: warning: 'rtl2832_wr' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/tda10071.c:52:1: warning: 'tda10071_wr_regs' uses dynamic stack allocation [enabled by default]
	drivers/media/dvb-frontends/tda10071.c:84:1: warning: 'tda10071_rd_regs' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer. Considering that I2C
transfers are generally limited, and that devices used on USB has a
max data length of 64 bytes for	the control URBs.
So, it seem safe to use 64 bytes as the hard limit for all those devices.
 On most cases, the limit is a way lower than that, but	this limit
is small enough to not affect the Kernel stack, and it is a no brain
limit, as using smaller ones would require to either carefully each
driver or to take a look on each datasheet.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/dvb-frontends/af9013.c        | 14 ++++++++++++--
 drivers/media/dvb-frontends/af9033.c        | 23 ++++++++++++++++++++---
 drivers/media/dvb-frontends/cxd2820r_core.c | 21 +++++++++++++++++++--
 drivers/media/dvb-frontends/rtl2830.c       | 14 ++++++++++++--
 drivers/media/dvb-frontends/rtl2832.c       | 14 ++++++++++++--
 drivers/media/dvb-frontends/tda10071.c      | 25 +++++++++++++++++++++----
 6 files changed, 96 insertions(+), 15 deletions(-)

diff --git a/drivers/media/dvb-frontends/af9013.c b/drivers/media/dvb-frontends/af9013.c
index a204f2828820..fb504f1e9125 100644
--- a/drivers/media/dvb-frontends/af9013.c
+++ b/drivers/media/dvb-frontends/af9013.c
@@ -24,6 +24,9 @@
 
 #include "af9013_priv.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 struct af9013_state {
 	struct i2c_adapter *i2c;
 	struct dvb_frontend fe;
@@ -50,16 +53,23 @@ static int af9013_wr_regs_i2c(struct af9013_state *priv, u8 mbox, u16 reg,
 	const u8 *val, int len)
 {
 	int ret;
-	u8 buf[3+len];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg msg[1] = {
 		{
 			.addr = priv->config.i2c_addr,
 			.flags = 0,
-			.len = sizeof(buf),
+			.len = 3 + len,
 			.buf = buf,
 		}
 	};
 
+	if (3 + len > sizeof(buf)) {
+		dev_warn(&priv->i2c->dev,
+			 "%s: i2c wr reg=%04x: len=%d is too big!\n",
+			 KBUILD_MODNAME, reg, len);
+		return -EINVAL;
+	}
+
 	buf[0] = (reg >> 8) & 0xff;
 	buf[1] = (reg >> 0) & 0xff;
 	buf[2] = mbox;
diff --git a/drivers/media/dvb-frontends/af9033.c b/drivers/media/dvb-frontends/af9033.c
index a777b4b944eb..30ee59052157 100644
--- a/drivers/media/dvb-frontends/af9033.c
+++ b/drivers/media/dvb-frontends/af9033.c
@@ -21,6 +21,9 @@
 
 #include "af9033_priv.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 struct af9033_state {
 	struct i2c_adapter *i2c;
 	struct dvb_frontend fe;
@@ -40,16 +43,23 @@ static int af9033_wr_regs(struct af9033_state *state, u32 reg, const u8 *val,
 		int len)
 {
 	int ret;
-	u8 buf[3 + len];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg msg[1] = {
 		{
 			.addr = state->cfg.i2c_addr,
 			.flags = 0,
-			.len = sizeof(buf),
+			.len = 3 + len,
 			.buf = buf,
 		}
 	};
 
+	if (3 + len > sizeof(buf)) {
+		dev_warn(&state->i2c->dev,
+			 "%s: i2c wr reg=%04x: len=%d is too big!\n",
+			 KBUILD_MODNAME, reg, len);
+		return -EINVAL;
+	}
+
 	buf[0] = (reg >> 16) & 0xff;
 	buf[1] = (reg >>  8) & 0xff;
 	buf[2] = (reg >>  0) & 0xff;
@@ -161,7 +171,14 @@ static int af9033_wr_reg_val_tab(struct af9033_state *state,
 		const struct reg_val *tab, int tab_len)
 {
 	int ret, i, j;
-	u8 buf[tab_len];
+	u8 buf[MAX_XFER_SIZE];
+
+	if (tab_len > sizeof(buf)) {
+		dev_warn(&state->i2c->dev,
+			 "%s: i2c wr len=%d is too big!\n",
+			 KBUILD_MODNAME, tab_len);
+		return -EINVAL;
+	}
 
 	dev_dbg(&state->i2c->dev, "%s: tab_len=%d\n", __func__, tab_len);
 
diff --git a/drivers/media/dvb-frontends/cxd2820r_core.c b/drivers/media/dvb-frontends/cxd2820r_core.c
index d9eeeb1dfa96..03930d5e9fea 100644
--- a/drivers/media/dvb-frontends/cxd2820r_core.c
+++ b/drivers/media/dvb-frontends/cxd2820r_core.c
@@ -21,12 +21,15 @@
 
 #include "cxd2820r_priv.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 /* write multiple registers */
 static int cxd2820r_wr_regs_i2c(struct cxd2820r_priv *priv, u8 i2c, u8 reg,
 	u8 *val, int len)
 {
 	int ret;
-	u8 buf[len+1];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg msg[1] = {
 		{
 			.addr = i2c,
@@ -36,6 +39,13 @@ static int cxd2820r_wr_regs_i2c(struct cxd2820r_priv *priv, u8 i2c, u8 reg,
 		}
 	};
 
+	if (1 + len > sizeof(buf)) {
+		dev_warn(&priv->i2c->dev,
+			 "%s: i2c wr reg=%04x: len=%d is too big!\n",
+			 KBUILD_MODNAME, reg, len);
+		return -EINVAL;
+	}
+
 	buf[0] = reg;
 	memcpy(&buf[1], val, len);
 
@@ -55,7 +65,7 @@ static int cxd2820r_rd_regs_i2c(struct cxd2820r_priv *priv, u8 i2c, u8 reg,
 	u8 *val, int len)
 {
 	int ret;
-	u8 buf[len];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg msg[2] = {
 		{
 			.addr = i2c,
@@ -70,6 +80,13 @@ static int cxd2820r_rd_regs_i2c(struct cxd2820r_priv *priv, u8 i2c, u8 reg,
 		}
 	};
 
+	if (len > sizeof(buf)) {
+		dev_warn(&priv->i2c->dev,
+			 "%s: i2c wr reg=%04x: len=%d is too big!\n",
+			 KBUILD_MODNAME, reg, len);
+		return -EINVAL;
+	}
+
 	ret = i2c_transfer(priv->i2c, msg, 2);
 	if (ret == 2) {
 		memcpy(val, buf, len);
diff --git a/drivers/media/dvb-frontends/rtl2830.c b/drivers/media/dvb-frontends/rtl2830.c
index 362d26d11e82..7efb796c472c 100644
--- a/drivers/media/dvb-frontends/rtl2830.c
+++ b/drivers/media/dvb-frontends/rtl2830.c
@@ -27,20 +27,30 @@
 
 #include "rtl2830_priv.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 /* write multiple hardware registers */
 static int rtl2830_wr(struct rtl2830_priv *priv, u8 reg, const u8 *val, int len)
 {
 	int ret;
-	u8 buf[1+len];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg msg[1] = {
 		{
 			.addr = priv->cfg.i2c_addr,
 			.flags = 0,
-			.len = 1+len,
+			.len = 1 + len,
 			.buf = buf,
 		}
 	};
 
+	if (1 + len > sizeof(buf)) {
+		dev_warn(&priv->i2c->dev,
+			 "%s: i2c wr reg=%04x: len=%d is too big!\n",
+			 KBUILD_MODNAME, reg, len);
+		return -EINVAL;
+	}
+
 	buf[0] = reg;
 	memcpy(&buf[1], val, len);
 
diff --git a/drivers/media/dvb-frontends/rtl2832.c b/drivers/media/dvb-frontends/rtl2832.c
index a95dfe0a5ce3..ff73da9365e3 100644
--- a/drivers/media/dvb-frontends/rtl2832.c
+++ b/drivers/media/dvb-frontends/rtl2832.c
@@ -22,6 +22,9 @@
 #include "dvb_math.h"
 #include <linux/bitops.h>
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 int rtl2832_debug;
 module_param_named(debug, rtl2832_debug, int, 0644);
 MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
@@ -162,16 +165,23 @@ static const struct rtl2832_reg_entry registers[] = {
 static int rtl2832_wr(struct rtl2832_priv *priv, u8 reg, u8 *val, int len)
 {
 	int ret;
-	u8 buf[1+len];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg msg[1] = {
 		{
 			.addr = priv->cfg.i2c_addr,
 			.flags = 0,
-			.len = 1+len,
+			.len = 1 + len,
 			.buf = buf,
 		}
 	};
 
+	if (1 + len > sizeof(buf)) {
+		dev_warn(&priv->i2c->dev,
+			 "%s: i2c wr reg=%04x: len=%d is too big!\n",
+			 KBUILD_MODNAME, reg, len);
+		return -EINVAL;
+	}
+
 	buf[0] = reg;
 	memcpy(&buf[1], val, len);
 
diff --git a/drivers/media/dvb-frontends/tda10071.c b/drivers/media/dvb-frontends/tda10071.c
index e79749cfec81..8ad3a57cf640 100644
--- a/drivers/media/dvb-frontends/tda10071.c
+++ b/drivers/media/dvb-frontends/tda10071.c
@@ -20,6 +20,9 @@
 
 #include "tda10071_priv.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 static struct dvb_frontend_ops tda10071_ops;
 
 /* write multiple registers */
@@ -27,16 +30,23 @@ static int tda10071_wr_regs(struct tda10071_priv *priv, u8 reg, u8 *val,
 	int len)
 {
 	int ret;
-	u8 buf[len+1];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg msg[1] = {
 		{
 			.addr = priv->cfg.demod_i2c_addr,
 			.flags = 0,
-			.len = sizeof(buf),
+			.len = 1 + len,
 			.buf = buf,
 		}
 	};
 
+	if (1 + len > sizeof(buf)) {
+		dev_warn(&priv->i2c->dev,
+			 "%s: i2c wr reg=%04x: len=%d is too big!\n",
+			 KBUILD_MODNAME, reg, len);
+		return -EINVAL;
+	}
+
 	buf[0] = reg;
 	memcpy(&buf[1], val, len);
 
@@ -56,7 +66,7 @@ static int tda10071_rd_regs(struct tda10071_priv *priv, u8 reg, u8 *val,
 	int len)
 {
 	int ret;
-	u8 buf[len];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg msg[2] = {
 		{
 			.addr = priv->cfg.demod_i2c_addr,
@@ -66,11 +76,18 @@ static int tda10071_rd_regs(struct tda10071_priv *priv, u8 reg, u8 *val,
 		}, {
 			.addr = priv->cfg.demod_i2c_addr,
 			.flags = I2C_M_RD,
-			.len = sizeof(buf),
+			.len = len,
 			.buf = buf,
 		}
 	};
 
+	if (len > sizeof(buf)) {
+		dev_warn(&priv->i2c->dev,
+			 "%s: i2c wr reg=%04x: len=%d is too big!\n",
+			 KBUILD_MODNAME, reg, len);
+		return -EINVAL;
+	}
+
 	ret = i2c_transfer(priv->i2c, msg, 2);
 	if (ret == 2) {
 		memcpy(val, buf, len);
-- 
cgit 


From ba4746423488aafa435739c32bfe0758f3dd5d77 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sat, 2 Nov 2013 05:14:58 -0300
Subject: [media] stb0899_drv: Don't use dynamic static allocation

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/dvb-frontends/stb0899_drv.c:540:1: warning: 'stb0899_write_regs' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer. Considering that I2C
transfers are generally limited, and that devices used on USB has a
max data length of 64 bytes for	the control URBs.
So, it seem safe to use 64 bytes as the hard limit for all those devices.
 On most cases, the limit is a way lower than that, but	this limit
is small enough to not affect the Kernel stack, and it is a no brain
limit, as using smaller ones would require to either carefully each
driver or to take a look on each datasheet.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/dvb-frontends/stb0899_drv.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/media/dvb-frontends/stb0899_drv.c b/drivers/media/dvb-frontends/stb0899_drv.c
index 3dd5714eadba..07cd5ea7a038 100644
--- a/drivers/media/dvb-frontends/stb0899_drv.c
+++ b/drivers/media/dvb-frontends/stb0899_drv.c
@@ -32,6 +32,9 @@
 #include "stb0899_priv.h"
 #include "stb0899_reg.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 static unsigned int verbose = 0;//1;
 module_param(verbose, int, 0644);
 
@@ -499,7 +502,7 @@ err:
 int stb0899_write_regs(struct stb0899_state *state, unsigned int reg, u8 *data, u32 count)
 {
 	int ret;
-	u8 buf[2 + count];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg i2c_msg = {
 		.addr	= state->config->demod_address,
 		.flags	= 0,
@@ -507,6 +510,13 @@ int stb0899_write_regs(struct stb0899_state *state, unsigned int reg, u8 *data,
 		.len	= 2 + count
 	};
 
+	if (2 + count > sizeof(buf)) {
+		printk(KERN_WARNING
+		       "%s: i2c wr reg=%04x: len=%d is too big!\n",
+		       KBUILD_MODNAME, reg, count);
+		return -EINVAL;
+	}
+
 	buf[0] = reg >> 8;
 	buf[1] = reg & 0xff;
 	memcpy(&buf[2], data, count);
-- 
cgit 


From 9aca4fb0571ce9cfef680ceb08d19dd008015307 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sat, 2 Nov 2013 05:17:01 -0300
Subject: [media] stv0367: Don't use dynamic static allocation

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/dvb-frontends/stv0367.c:791:1: warning: 'stv0367_writeregs.constprop.4' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer. Considering that I2C
transfers are generally limited, and that devices used on USB has a
max data length of 64 bytes for	the control URBs.
So, it seem safe to use 64 bytes as the hard limit for all those devices.
 On most cases, the limit is a way lower than that, but	this limit
is small enough to not affect the Kernel stack, and it is a no brain
limit, as using smaller ones would require to either carefully each
driver or to take a look on each datasheet.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/dvb-frontends/stv0367.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/media/dvb-frontends/stv0367.c b/drivers/media/dvb-frontends/stv0367.c
index 7b6dba3ce55e..458772739423 100644
--- a/drivers/media/dvb-frontends/stv0367.c
+++ b/drivers/media/dvb-frontends/stv0367.c
@@ -33,6 +33,9 @@
 #include "stv0367_regs.h"
 #include "stv0367_priv.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 static int stvdebug;
 module_param_named(debug, stvdebug, int, 0644);
 
@@ -767,7 +770,7 @@ static struct st_register def0367cab[STV0367CAB_NBREGS] = {
 static
 int stv0367_writeregs(struct stv0367_state *state, u16 reg, u8 *data, int len)
 {
-	u8 buf[len + 2];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg msg = {
 		.addr = state->config->demod_address,
 		.flags = 0,
@@ -776,6 +779,14 @@ int stv0367_writeregs(struct stv0367_state *state, u16 reg, u8 *data, int len)
 	};
 	int ret;
 
+	if (2 + len > sizeof(buf)) {
+		printk(KERN_WARNING
+		       "%s: i2c wr reg=%04x: len=%d is too big!\n",
+		       KBUILD_MODNAME, reg, len);
+		return -EINVAL;
+	}
+
+
 	buf[0] = MSB(reg);
 	buf[1] = LSB(reg);
 	memcpy(buf + 2, data, len);
-- 
cgit 


From f7a35df15b1f7de7823946aebc9164854e66ea07 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sat, 2 Nov 2013 05:18:49 -0300
Subject: [media] stv090x: Don't use dynamic static allocation

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
       drivers/media/dvb-frontends/stv090x.c:750:1: warning: 'stv090x_write_regs.constprop.6' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer. Considering that I2C
transfers are generally limited, and that devices used on USB has a
max data length of 64 bytes for	the control URBs.
So, it seem safe to use 64 bytes as the hard limit for all those devices.
 On most cases, the limit is a way lower than that, but	this limit
is small enough to not affect the Kernel stack, and it is a no brain
limit, as using smaller ones would require to either carefully each
driver or to take a look on each datasheet.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/dvb-frontends/stv090x.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/media/dvb-frontends/stv090x.c b/drivers/media/dvb-frontends/stv090x.c
index 56d470ad5a82..23e872f84742 100644
--- a/drivers/media/dvb-frontends/stv090x.c
+++ b/drivers/media/dvb-frontends/stv090x.c
@@ -35,6 +35,9 @@
 #include "stv090x.h"
 #include "stv090x_priv.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 static unsigned int verbose;
 module_param(verbose, int, 0644);
 
@@ -722,9 +725,16 @@ static int stv090x_write_regs(struct stv090x_state *state, unsigned int reg, u8
 {
 	const struct stv090x_config *config = state->config;
 	int ret;
-	u8 buf[2 + count];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg i2c_msg = { .addr = config->address, .flags = 0, .buf = buf, .len = 2 + count };
 
+	if (2 + count > sizeof(buf)) {
+		printk(KERN_WARNING
+		       "%s: i2c wr reg=%04x: len=%d is too big!\n",
+		       KBUILD_MODNAME, reg, count);
+		return -EINVAL;
+	}
+
 	buf[0] = reg >> 8;
 	buf[1] = reg & 0xff;
 	memcpy(&buf[2], data, count);
-- 
cgit 


From 5bf30b3bc4ff80ef71a733a1f459cca4fa507892 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sat, 2 Nov 2013 05:51:59 -0300
Subject: [media] av7110_hw: Don't use dynamic static allocation

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/pci/ttpci/av7110_hw.c:510:1: warning: 'av7110_fw_cmd' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer.
In the specific case of this driver, the maximum fw command size
is 6 + 2, as checked using:
	$ git grep -A1 av7110_fw_cmd drivers/media/pci/ttpci/
So, use 8 for the buffer size.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/ttpci/av7110_hw.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/drivers/media/pci/ttpci/av7110_hw.c b/drivers/media/pci/ttpci/av7110_hw.c
index f1cbfe526989..6299d5dadb82 100644
--- a/drivers/media/pci/ttpci/av7110_hw.c
+++ b/drivers/media/pci/ttpci/av7110_hw.c
@@ -22,7 +22,7 @@
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  * Or, point your browser to http://www.gnu.org/copyleft/gpl.html
  *
- * the project's page is at http://www.linuxtv.org/ 
+ * the project's page is at http://www.linuxtv.org/
  */
 
 /* for debugging ARM communication: */
@@ -40,6 +40,14 @@
 
 #define _NOHANDSHAKE
 
+/*
+ * Max transfer size done by av7110_fw_cmd()
+ *
+ * The maximum size passed to this function is 6 bytes. The buffer also
+ * uses two additional ones for type and size. So, 8 bytes is enough.
+ */
+#define MAX_XFER_SIZE  8
+
 /****************************************************************************
  * DEBI functions
  ****************************************************************************/
@@ -488,11 +496,18 @@ static int av7110_send_fw_cmd(struct av7110 *av7110, u16* buf, int length)
 int av7110_fw_cmd(struct av7110 *av7110, int type, int com, int num, ...)
 {
 	va_list args;
-	u16 buf[num + 2];
+	u16 buf[MAX_XFER_SIZE];
 	int i, ret;
 
 //	dprintk(4, "%p\n", av7110);
 
+	if (2 + num > sizeof(buf)) {
+		printk(KERN_WARNING
+		       "%s: %s len=%d is too big!\n",
+		       KBUILD_MODNAME, __func__, num);
+		return -EINVAL;
+	}
+
 	buf[0] = ((type << 8) | com);
 	buf[1] = num;
 
-- 
cgit 


From f1baab870f6e93b668af7b34d6f6ba49f1b0e982 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sat, 2 Nov 2013 06:07:42 -0300
Subject: [media] tuners: Don't use dynamic static allocation

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/tuners/e4000.c:50:1: warning: 'e4000_wr_regs' uses dynamic stack allocation [enabled by default]
	drivers/media/tuners/e4000.c:83:1: warning: 'e4000_rd_regs' uses dynamic stack allocation [enabled by default]
	drivers/media/tuners/fc2580.c:66:1: warning: 'fc2580_wr_regs.constprop.1' uses dynamic stack allocation [enabled by default]
	drivers/media/tuners/fc2580.c:98:1: warning: 'fc2580_rd_regs.constprop.0' uses dynamic stack allocation [enabled by default]
	drivers/media/tuners/tda18212.c:57:1: warning: 'tda18212_wr_regs' uses dynamic stack allocation [enabled by default]
	drivers/media/tuners/tda18212.c:90:1: warning: 'tda18212_rd_regs.constprop.0' uses dynamic stack allocation [enabled by default]
	drivers/media/tuners/tda18218.c:60:1: warning: 'tda18218_wr_regs' uses dynamic stack allocation [enabled by default]
	drivers/media/tuners/tda18218.c:92:1: warning: 'tda18218_rd_regs.constprop.0' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer. Considering that I2C
transfers are generally limited, and that devices used on USB has a
max data length of 64 bytes for	the control URBs.
So, it seem safe to use 64 bytes as the hard limit for all those devices.
 On most cases, the limit is a way lower than that, but	this limit
is small enough to not affect the Kernel stack, and it is a no brain
limit, as using smaller ones would require to either carefully each
driver or to take a look on each datasheet.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/tuners/e4000.c    | 25 +++++++++++++++++++++----
 drivers/media/tuners/fc2580.c   | 25 +++++++++++++++++++++----
 drivers/media/tuners/tda18212.c | 25 +++++++++++++++++++++----
 drivers/media/tuners/tda18218.c | 23 ++++++++++++++++++++---
 4 files changed, 83 insertions(+), 15 deletions(-)

diff --git a/drivers/media/tuners/e4000.c b/drivers/media/tuners/e4000.c
index ad9309da4a91..c9cc1232f2e5 100644
--- a/drivers/media/tuners/e4000.c
+++ b/drivers/media/tuners/e4000.c
@@ -20,20 +20,30 @@
 
 #include "e4000_priv.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 /* write multiple registers */
 static int e4000_wr_regs(struct e4000_priv *priv, u8 reg, u8 *val, int len)
 {
 	int ret;
-	u8 buf[1 + len];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg msg[1] = {
 		{
 			.addr = priv->cfg->i2c_addr,
 			.flags = 0,
-			.len = sizeof(buf),
+			.len = 1 + len,
 			.buf = buf,
 		}
 	};
 
+	if (1 + len > sizeof(buf)) {
+		dev_warn(&priv->i2c->dev,
+			 "%s: i2c wr reg=%04x: len=%d is too big!\n",
+			 KBUILD_MODNAME, reg, len);
+		return -EINVAL;
+	}
+
 	buf[0] = reg;
 	memcpy(&buf[1], val, len);
 
@@ -53,7 +63,7 @@ static int e4000_wr_regs(struct e4000_priv *priv, u8 reg, u8 *val, int len)
 static int e4000_rd_regs(struct e4000_priv *priv, u8 reg, u8 *val, int len)
 {
 	int ret;
-	u8 buf[len];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg msg[2] = {
 		{
 			.addr = priv->cfg->i2c_addr,
@@ -63,11 +73,18 @@ static int e4000_rd_regs(struct e4000_priv *priv, u8 reg, u8 *val, int len)
 		}, {
 			.addr = priv->cfg->i2c_addr,
 			.flags = I2C_M_RD,
-			.len = sizeof(buf),
+			.len = len,
 			.buf = buf,
 		}
 	};
 
+	if (len > sizeof(buf)) {
+		dev_warn(&priv->i2c->dev,
+			 "%s: i2c rd reg=%04x: len=%d is too big!\n",
+			 KBUILD_MODNAME, reg, len);
+		return -EINVAL;
+	}
+
 	ret = i2c_transfer(priv->i2c, msg, 2);
 	if (ret == 2) {
 		memcpy(val, buf, len);
diff --git a/drivers/media/tuners/fc2580.c b/drivers/media/tuners/fc2580.c
index 81f38aae9c66..3aecaf465094 100644
--- a/drivers/media/tuners/fc2580.c
+++ b/drivers/media/tuners/fc2580.c
@@ -20,6 +20,9 @@
 
 #include "fc2580_priv.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 /*
  * TODO:
  * I2C write and read works only for one single register. Multiple registers
@@ -41,16 +44,23 @@
 static int fc2580_wr_regs(struct fc2580_priv *priv, u8 reg, u8 *val, int len)
 {
 	int ret;
-	u8 buf[1 + len];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg msg[1] = {
 		{
 			.addr = priv->cfg->i2c_addr,
 			.flags = 0,
-			.len = sizeof(buf),
+			.len = 1 + len,
 			.buf = buf,
 		}
 	};
 
+	if (1 + len > sizeof(buf)) {
+		dev_warn(&priv->i2c->dev,
+			 "%s: i2c wr reg=%04x: len=%d is too big!\n",
+			 KBUILD_MODNAME, reg, len);
+		return -EINVAL;
+	}
+
 	buf[0] = reg;
 	memcpy(&buf[1], val, len);
 
@@ -69,7 +79,7 @@ static int fc2580_wr_regs(struct fc2580_priv *priv, u8 reg, u8 *val, int len)
 static int fc2580_rd_regs(struct fc2580_priv *priv, u8 reg, u8 *val, int len)
 {
 	int ret;
-	u8 buf[len];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg msg[2] = {
 		{
 			.addr = priv->cfg->i2c_addr,
@@ -79,11 +89,18 @@ static int fc2580_rd_regs(struct fc2580_priv *priv, u8 reg, u8 *val, int len)
 		}, {
 			.addr = priv->cfg->i2c_addr,
 			.flags = I2C_M_RD,
-			.len = sizeof(buf),
+			.len = len,
 			.buf = buf,
 		}
 	};
 
+	if (len > sizeof(buf)) {
+		dev_warn(&priv->i2c->dev,
+			 "%s: i2c rd reg=%04x: len=%d is too big!\n",
+			 KBUILD_MODNAME, reg, len);
+		return -EINVAL;
+	}
+
 	ret = i2c_transfer(priv->i2c, msg, 2);
 	if (ret == 2) {
 		memcpy(val, buf, len);
diff --git a/drivers/media/tuners/tda18212.c b/drivers/media/tuners/tda18212.c
index e4a84ee231cf..abe256e1f843 100644
--- a/drivers/media/tuners/tda18212.c
+++ b/drivers/media/tuners/tda18212.c
@@ -20,6 +20,9 @@
 
 #include "tda18212.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 struct tda18212_priv {
 	struct tda18212_config *cfg;
 	struct i2c_adapter *i2c;
@@ -32,16 +35,23 @@ static int tda18212_wr_regs(struct tda18212_priv *priv, u8 reg, u8 *val,
 	int len)
 {
 	int ret;
-	u8 buf[len+1];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg msg[1] = {
 		{
 			.addr = priv->cfg->i2c_address,
 			.flags = 0,
-			.len = sizeof(buf),
+			.len = 1 + len,
 			.buf = buf,
 		}
 	};
 
+	if (1 + len > sizeof(buf)) {
+		dev_warn(&priv->i2c->dev,
+			 "%s: i2c wr reg=%04x: len=%d is too big!\n",
+			 KBUILD_MODNAME, reg, len);
+		return -EINVAL;
+	}
+
 	buf[0] = reg;
 	memcpy(&buf[1], val, len);
 
@@ -61,7 +71,7 @@ static int tda18212_rd_regs(struct tda18212_priv *priv, u8 reg, u8 *val,
 	int len)
 {
 	int ret;
-	u8 buf[len];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg msg[2] = {
 		{
 			.addr = priv->cfg->i2c_address,
@@ -71,11 +81,18 @@ static int tda18212_rd_regs(struct tda18212_priv *priv, u8 reg, u8 *val,
 		}, {
 			.addr = priv->cfg->i2c_address,
 			.flags = I2C_M_RD,
-			.len = sizeof(buf),
+			.len = len,
 			.buf = buf,
 		}
 	};
 
+	if (len > sizeof(buf)) {
+		dev_warn(&priv->i2c->dev,
+			 "%s: i2c rd reg=%04x: len=%d is too big!\n",
+			 KBUILD_MODNAME, reg, len);
+		return -EINVAL;
+	}
+
 	ret = i2c_transfer(priv->i2c, msg, 2);
 	if (ret == 2) {
 		memcpy(val, buf, len);
diff --git a/drivers/media/tuners/tda18218.c b/drivers/media/tuners/tda18218.c
index 2d31aeb6b088..9300e9361e3b 100644
--- a/drivers/media/tuners/tda18218.c
+++ b/drivers/media/tuners/tda18218.c
@@ -20,11 +20,14 @@
 
 #include "tda18218_priv.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 /* write multiple registers */
 static int tda18218_wr_regs(struct tda18218_priv *priv, u8 reg, u8 *val, u8 len)
 {
 	int ret = 0, len2, remaining;
-	u8 buf[1 + len];
+	u8 buf[MAX_XFER_SIZE];
 	struct i2c_msg msg[1] = {
 		{
 			.addr = priv->cfg->i2c_address,
@@ -33,6 +36,13 @@ static int tda18218_wr_regs(struct tda18218_priv *priv, u8 reg, u8 *val, u8 len)
 		}
 	};
 
+	if (1 + len > sizeof(buf)) {
+		dev_warn(&priv->i2c->dev,
+			 "%s: i2c wr reg=%04x: len=%d is too big!\n",
+			 KBUILD_MODNAME, reg, len);
+		return -EINVAL;
+	}
+
 	for (remaining = len; remaining > 0;
 			remaining -= (priv->cfg->i2c_wr_max - 1)) {
 		len2 = remaining;
@@ -63,7 +73,7 @@ static int tda18218_wr_regs(struct tda18218_priv *priv, u8 reg, u8 *val, u8 len)
 static int tda18218_rd_regs(struct tda18218_priv *priv, u8 reg, u8 *val, u8 len)
 {
 	int ret;
-	u8 buf[reg+len]; /* we must start read always from reg 0x00 */
+	u8 buf[MAX_XFER_SIZE]; /* we must start read always from reg 0x00 */
 	struct i2c_msg msg[2] = {
 		{
 			.addr = priv->cfg->i2c_address,
@@ -73,11 +83,18 @@ static int tda18218_rd_regs(struct tda18218_priv *priv, u8 reg, u8 *val, u8 len)
 		}, {
 			.addr = priv->cfg->i2c_address,
 			.flags = I2C_M_RD,
-			.len = sizeof(buf),
+			.len = reg + len,
 			.buf = buf,
 		}
 	};
 
+	if (reg + len > sizeof(buf)) {
+		dev_warn(&priv->i2c->dev,
+			 "%s: i2c wr reg=%04x: len=%d is too big!\n",
+			 KBUILD_MODNAME, reg, len);
+		return -EINVAL;
+	}
+
 	ret = i2c_transfer(priv->i2c, msg, 2);
 	if (ret == 2) {
 		memcpy(val, &buf[reg], len);
-- 
cgit 


From 56ac033725ec93a45170caf3979eb2b1211a59a8 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sat, 2 Nov 2013 06:13:11 -0300
Subject: [media] tuner-xc2028: Don't use dynamic static allocation

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/tuners/tuner-xc2028.c:651:1: warning: 'load_firmware' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer.
In the specific case of this driver, the maximum limit is 80, used only
on tm6000 driver. This limit is due to the size of the USB control URBs.
Ok, it would be theoretically possible to use a bigger size on PCI
devices, but the firmware load time is already good enough. Anyway,
if some usage requires more, it is just a matter of also increasing
the buffer size at load_firmware().

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/tuners/tuner-xc2028.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/media/tuners/tuner-xc2028.c b/drivers/media/tuners/tuner-xc2028.c
index e287a7417319..4be5cf808a40 100644
--- a/drivers/media/tuners/tuner-xc2028.c
+++ b/drivers/media/tuners/tuner-xc2028.c
@@ -24,6 +24,9 @@
 #include <linux/dvb/frontend.h>
 #include "dvb_frontend.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  80
+
 /* Registers (Write-only) */
 #define XREG_INIT         0x00
 #define XREG_RF_FREQ      0x02
@@ -547,7 +550,10 @@ static int load_firmware(struct dvb_frontend *fe, unsigned int type,
 {
 	struct xc2028_data *priv = fe->tuner_priv;
 	int                pos, rc;
-	unsigned char      *p, *endp, buf[priv->ctrl.max_len];
+	unsigned char      *p, *endp, buf[MAX_XFER_SIZE];
+
+	if (priv->ctrl.max_len > sizeof(buf))
+		priv->ctrl.max_len = sizeof(buf);
 
 	tuner_dbg("%s called\n", __func__);
 
-- 
cgit 


From 278ba83a3a1932805be726bdd7dfb3156286d33a Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sat, 2 Nov 2013 06:17:47 -0300
Subject: [media] cimax2: Don't use dynamic static allocation

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
        drivers/media/pci/cx23885/cimax2.c:149:1: warning: 'netup_write_i2c' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer. Considering that I2C
transfers are generally limited, and that devices used on USB has a
max data length of 64 bytes for the control URBs.
So, it seem safe to use 64 bytes as the hard limit for all those devices.
On most cases, the limit is a way lower than that, but this limit
is small enough to not affect the Kernel stack, and it is a no brain
limit, as using smaller ones would require to either carefully each
driver or to take a look on each datasheet.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/pci/cx23885/cimax2.c | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/drivers/media/pci/cx23885/cimax2.c b/drivers/media/pci/cx23885/cimax2.c
index 7344849183a7..16fa7ea4d4aa 100644
--- a/drivers/media/pci/cx23885/cimax2.c
+++ b/drivers/media/pci/cx23885/cimax2.c
@@ -26,6 +26,10 @@
 #include "cx23885.h"
 #include "cimax2.h"
 #include "dvb_ca_en50221.h"
+
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 /**** Bit definitions for MC417_RWD and MC417_OEN registers  ***
   bits 31-16
 +-----------+
@@ -125,7 +129,7 @@ static int netup_write_i2c(struct i2c_adapter *i2c_adap, u8 addr, u8 reg,
 						u8 *buf, int len)
 {
 	int ret;
-	u8 buffer[len + 1];
+	u8 buffer[MAX_XFER_SIZE];
 
 	struct i2c_msg msg = {
 		.addr	= addr,
@@ -134,6 +138,13 @@ static int netup_write_i2c(struct i2c_adapter *i2c_adap, u8 addr, u8 reg,
 		.len	= len + 1
 	};
 
+	if (1 + len > sizeof(buffer)) {
+		printk(KERN_WARNING
+		       "%s: i2c wr reg=%04x: len=%d is too big!\n",
+		       KBUILD_MODNAME, reg, len);
+		return -EINVAL;
+	}
+
 	buffer[0] = reg;
 	memcpy(&buffer[1], buf, len);
 
-- 
cgit 


From 24e9a47e14f0a97ee97abc3dd86b2ef254448a17 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sat, 2 Nov 2013 06:20:16 -0300
Subject: [media] v4l2-async: Don't use dynamic static allocation

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/v4l2-core/v4l2-async.c:238:1: warning: 'v4l2_async_notifier_unregister' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer.
In this specific case, there's a hard limit imposed by V4L2_MAX_SUBDEVS,
with is currently 128. That means that the buffer size can be up to
128x8 = 1024 bytes (on a 64bits kernel), with is too big for stack.
Worse than that, someone could increase it and cause real troubles.
So, let's use dynamically allocated data, instead.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/v4l2-core/v4l2-async.c | 30 +++++++++++++++++++++++++++---
 1 file changed, 27 insertions(+), 3 deletions(-)

diff --git a/drivers/media/v4l2-core/v4l2-async.c b/drivers/media/v4l2-core/v4l2-async.c
index c85d69da35bd..85a6a34128a8 100644
--- a/drivers/media/v4l2-core/v4l2-async.c
+++ b/drivers/media/v4l2-core/v4l2-async.c
@@ -189,30 +189,53 @@ void v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier)
 	struct v4l2_subdev *sd, *tmp;
 	unsigned int notif_n_subdev = notifier->num_subdevs;
 	unsigned int n_subdev = min(notif_n_subdev, V4L2_MAX_SUBDEVS);
-	struct device *dev[n_subdev];
+	struct device **dev;
 	int i = 0;
 
 	if (!notifier->v4l2_dev)
 		return;
 
+	dev = kmalloc(n_subdev * sizeof(*dev), GFP_KERNEL);
+	if (!dev) {
+		dev_err(notifier->v4l2_dev->dev,
+			"Failed to allocate device cache!\n");
+	}
+
 	mutex_lock(&list_lock);
 
 	list_del(&notifier->list);
 
 	list_for_each_entry_safe(sd, tmp, &notifier->done, async_list) {
-		dev[i] = get_device(sd->dev);
+		struct device *d;
+
+		d = get_device(sd->dev);
 
 		v4l2_async_cleanup(sd);
 
 		/* If we handled USB devices, we'd have to lock the parent too */
-		device_release_driver(dev[i++]);
+		device_release_driver(d);
 
 		if (notifier->unbind)
 			notifier->unbind(notifier, sd, sd->asd);
+
+		/*
+		 * Store device at the device cache, in order to call
+		 * put_device() on the final step
+		 */
+		if (dev)
+			dev[i++] = d;
+		else
+			put_device(d);
 	}
 
 	mutex_unlock(&list_lock);
 
+	/*
+	 * Call device_attach() to reprobe devices
+	 *
+	 * NOTE: If dev allocation fails, i is 0, and the whole loop won't be
+	 * executed.
+	 */
 	while (i--) {
 		struct device *d = dev[i];
 
@@ -228,6 +251,7 @@ void v4l2_async_notifier_unregister(struct v4l2_async_notifier *notifier)
 		}
 		put_device(d);
 	}
+	kfree(dev);
 
 	notifier->v4l2_dev = NULL;
 
-- 
cgit 


From 64f7ef8afbf89f3c72c4d2472e4914ca198c0668 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sat, 2 Nov 2013 07:18:09 -0300
Subject: [media] cxusb: Don't use dynamic static allocation

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/usb/dvb-usb/cxusb.c:209:1: warning: 'cxusb_i2c_xfer' uses dynamic stack allocation [enabled by default]
	drivers/media/usb/dvb-usb/cxusb.c:69:1: warning: 'cxusb_ctrl_msg' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer to be the max size of
a control URB payload data (64 bytes).

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/dvb-usb/cxusb.c | 41 +++++++++++++++++++++++++++++++++++----
 1 file changed, 37 insertions(+), 4 deletions(-)

diff --git a/drivers/media/usb/dvb-usb/cxusb.c b/drivers/media/usb/dvb-usb/cxusb.c
index 3940bb0f9ef6..20e345d9fe8f 100644
--- a/drivers/media/usb/dvb-usb/cxusb.c
+++ b/drivers/media/usb/dvb-usb/cxusb.c
@@ -43,6 +43,9 @@
 #include "lgs8gxx.h"
 #include "atbm8830.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 /* debug */
 static int dvb_usb_cxusb_debug;
 module_param_named(debug, dvb_usb_cxusb_debug, int, 0644);
@@ -57,7 +60,14 @@ static int cxusb_ctrl_msg(struct dvb_usb_device *d,
 			  u8 cmd, u8 *wbuf, int wlen, u8 *rbuf, int rlen)
 {
 	int wo = (rbuf == NULL || rlen == 0); /* write-only */
-	u8 sndbuf[1+wlen];
+	u8 sndbuf[MAX_XFER_SIZE];
+
+	if (1 + wlen > sizeof(sndbuf)) {
+		warn("i2c wr: len=%d is too big!\n",
+		     wlen);
+		return -EOPNOTSUPP;
+	}
+
 	memset(sndbuf, 0, 1+wlen);
 
 	sndbuf[0] = cmd;
@@ -158,7 +168,13 @@ static int cxusb_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 
 		if (msg[i].flags & I2C_M_RD) {
 			/* read only */
-			u8 obuf[3], ibuf[1+msg[i].len];
+			u8 obuf[3], ibuf[MAX_XFER_SIZE];
+
+			if (1 + msg[i].len > sizeof(ibuf)) {
+				warn("i2c rd: len=%d is too big!\n",
+				     msg[i].len);
+				return -EOPNOTSUPP;
+			}
 			obuf[0] = 0;
 			obuf[1] = msg[i].len;
 			obuf[2] = msg[i].addr;
@@ -172,7 +188,18 @@ static int cxusb_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 		} else if (i+1 < num && (msg[i+1].flags & I2C_M_RD) &&
 			   msg[i].addr == msg[i+1].addr) {
 			/* write to then read from same address */
-			u8 obuf[3+msg[i].len], ibuf[1+msg[i+1].len];
+			u8 obuf[MAX_XFER_SIZE], ibuf[MAX_XFER_SIZE];
+
+			if (3 + msg[i].len > sizeof(obuf)) {
+				warn("i2c wr: len=%d is too big!\n",
+				     msg[i].len);
+				return -EOPNOTSUPP;
+			}
+			if (1 + msg[i + 1].len > sizeof(ibuf)) {
+				warn("i2c rd: len=%d is too big!\n",
+				     msg[i + 1].len);
+				return -EOPNOTSUPP;
+			}
 			obuf[0] = msg[i].len;
 			obuf[1] = msg[i+1].len;
 			obuf[2] = msg[i].addr;
@@ -191,7 +218,13 @@ static int cxusb_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 			i++;
 		} else {
 			/* write only */
-			u8 obuf[2+msg[i].len], ibuf;
+			u8 obuf[MAX_XFER_SIZE], ibuf;
+
+			if (2 + msg[i].len > sizeof(obuf)) {
+				warn("i2c wr: len=%d is too big!\n",
+				     msg[i].len);
+				return -EOPNOTSUPP;
+			}
 			obuf[0] = msg[i].addr;
 			obuf[1] = msg[i].len;
 			memcpy(&obuf[2], msg[i].buf, msg[i].len);
-- 
cgit 


From 1d7fa359d4c0fbb2756fa01cc47212908d90b7b0 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sat, 2 Nov 2013 07:23:49 -0300
Subject: [media] dibusb-common: Don't use dynamic static allocation

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/usb/dvb-usb/dibusb-common.c:124:1: warning: 'dibusb_i2c_msg' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer to be the max size of
a control URB payload data (64 bytes).

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/dvb-usb/dibusb-common.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/media/usb/dvb-usb/dibusb-common.c b/drivers/media/usb/dvb-usb/dibusb-common.c
index c2dded92f1d3..6d68af0c49c8 100644
--- a/drivers/media/usb/dvb-usb/dibusb-common.c
+++ b/drivers/media/usb/dvb-usb/dibusb-common.c
@@ -12,6 +12,9 @@
 #include <linux/kconfig.h>
 #include "dibusb.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 static int debug;
 module_param(debug, int, 0644);
 MODULE_PARM_DESC(debug, "set debugging level (1=info (|-able))." DVB_USB_DEBUG_STATUS);
@@ -105,11 +108,16 @@ EXPORT_SYMBOL(dibusb2_0_power_ctrl);
 static int dibusb_i2c_msg(struct dvb_usb_device *d, u8 addr,
 			  u8 *wbuf, u16 wlen, u8 *rbuf, u16 rlen)
 {
-	u8 sndbuf[wlen+4]; /* lead(1) devaddr,direction(1) addr(2) data(wlen) (len(2) (when reading)) */
+	u8 sndbuf[MAX_XFER_SIZE]; /* lead(1) devaddr,direction(1) addr(2) data(wlen) (len(2) (when reading)) */
 	/* write only ? */
 	int wo = (rbuf == NULL || rlen == 0),
 		len = 2 + wlen + (wo ? 0 : 2);
 
+	if (4 + wlen > sizeof(sndbuf)) {
+		warn("i2c wr: len=%d is too big!\n", wlen);
+		return -EOPNOTSUPP;
+	}
+
 	sndbuf[0] = wo ? DIBUSB_REQ_I2C_WRITE : DIBUSB_REQ_I2C_READ;
 	sndbuf[1] = (addr << 1) | (wo ? 0 : 1);
 
-- 
cgit 


From 0065a79a8698a953e4b201c5fce8db8940530578 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sat, 2 Nov 2013 07:43:40 -0300
Subject: [media] dw2102: Don't use dynamic static allocation

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/usb/dvb-usb/dw2102.c:368:1: warning: 'dw2102_earda_i2c_transfer' uses dynamic stack allocation [enabled by default]
	drivers/media/usb/dvb-usb/dw2102.c:449:1: warning: 'dw2104_i2c_transfer' uses dynamic stack allocation [enabled by default]
	drivers/media/usb/dvb-usb/dw2102.c:512:1: warning: 'dw3101_i2c_transfer' uses dynamic stack allocation [enabled by default]
	drivers/media/usb/dvb-usb/dw2102.c:621:1: warning: 's6x0_i2c_transfer' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer to be the max size of
a control URB payload data (64 bytes).

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/dvb-usb/dw2102.c | 90 +++++++++++++++++++++++++++++++++-----
 1 file changed, 80 insertions(+), 10 deletions(-)

diff --git a/drivers/media/usb/dvb-usb/dw2102.c b/drivers/media/usb/dvb-usb/dw2102.c
index 6136a2c7dbfd..c1a63b2a6baa 100644
--- a/drivers/media/usb/dvb-usb/dw2102.c
+++ b/drivers/media/usb/dvb-usb/dw2102.c
@@ -30,6 +30,9 @@
 #include "stb6100_proc.h"
 #include "m88rs2000.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 #ifndef USB_PID_DW2102
 #define USB_PID_DW2102 0x2102
 #endif
@@ -308,7 +311,14 @@ static int dw2102_earda_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg ms
 	case 2: {
 		/* read */
 		/* first write first register number */
-		u8 ibuf[msg[1].len + 2], obuf[3];
+		u8 ibuf[MAX_XFER_SIZE], obuf[3];
+
+		if (2 + msg[1].len > sizeof(ibuf)) {
+			warn("i2c rd: len=%d is too big!\n",
+			     msg[1].len);
+			return -EOPNOTSUPP;
+		}
+
 		obuf[0] = msg[0].addr << 1;
 		obuf[1] = msg[0].len;
 		obuf[2] = msg[0].buf[0];
@@ -325,7 +335,14 @@ static int dw2102_earda_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg ms
 		switch (msg[0].addr) {
 		case 0x68: {
 			/* write to register */
-			u8 obuf[msg[0].len + 2];
+			u8 obuf[MAX_XFER_SIZE];
+
+			if (2 + msg[0].len > sizeof(obuf)) {
+				warn("i2c wr: len=%d is too big!\n",
+				     msg[1].len);
+				return -EOPNOTSUPP;
+			}
+
 			obuf[0] = msg[0].addr << 1;
 			obuf[1] = msg[0].len;
 			memcpy(obuf + 2, msg[0].buf, msg[0].len);
@@ -335,7 +352,14 @@ static int dw2102_earda_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg ms
 		}
 		case 0x61: {
 			/* write to tuner */
-			u8 obuf[msg[0].len + 2];
+			u8 obuf[MAX_XFER_SIZE];
+
+			if (2 + msg[0].len > sizeof(obuf)) {
+				warn("i2c wr: len=%d is too big!\n",
+				     msg[1].len);
+				return -EOPNOTSUPP;
+			}
+
 			obuf[0] = msg[0].addr << 1;
 			obuf[1] = msg[0].len;
 			memcpy(obuf + 2, msg[0].buf, msg[0].len);
@@ -401,7 +425,14 @@ static int dw2104_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], i
 		default: {
 			if (msg[j].flags == I2C_M_RD) {
 				/* read registers */
-				u8  ibuf[msg[j].len + 2];
+				u8  ibuf[MAX_XFER_SIZE];
+
+				if (2 + msg[j].len > sizeof(ibuf)) {
+					warn("i2c rd: len=%d is too big!\n",
+					     msg[j].len);
+					return -EOPNOTSUPP;
+				}
+
 				dw210x_op_rw(d->udev, 0xc3,
 						(msg[j].addr << 1) + 1, 0,
 						ibuf, msg[j].len + 2,
@@ -430,7 +461,14 @@ static int dw2104_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[], i
 				} while (len > 0);
 			} else {
 				/* write registers */
-				u8 obuf[msg[j].len + 2];
+				u8 obuf[MAX_XFER_SIZE];
+
+				if (2 + msg[j].len > sizeof(obuf)) {
+					warn("i2c wr: len=%d is too big!\n",
+					     msg[j].len);
+					return -EOPNOTSUPP;
+				}
+
 				obuf[0] = msg[j].addr << 1;
 				obuf[1] = msg[j].len;
 				memcpy(obuf + 2, msg[j].buf, msg[j].len);
@@ -463,7 +501,13 @@ static int dw3101_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 	case 2: {
 		/* read */
 		/* first write first register number */
-		u8 ibuf[msg[1].len + 2], obuf[3];
+		u8 ibuf[MAX_XFER_SIZE], obuf[3];
+
+		if (2 + msg[1].len > sizeof(ibuf)) {
+			warn("i2c rd: len=%d is too big!\n",
+			     msg[1].len);
+			return -EOPNOTSUPP;
+		}
 		obuf[0] = msg[0].addr << 1;
 		obuf[1] = msg[0].len;
 		obuf[2] = msg[0].buf[0];
@@ -481,7 +525,13 @@ static int dw3101_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 		case 0x60:
 		case 0x0c: {
 			/* write to register */
-			u8 obuf[msg[0].len + 2];
+			u8 obuf[MAX_XFER_SIZE];
+
+			if (2 + msg[0].len > sizeof(obuf)) {
+				warn("i2c wr: len=%d is too big!\n",
+				     msg[0].len);
+				return -EOPNOTSUPP;
+			}
 			obuf[0] = msg[0].addr << 1;
 			obuf[1] = msg[0].len;
 			memcpy(obuf + 2, msg[0].buf, msg[0].len);
@@ -563,7 +613,14 @@ static int s6x0_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 		default: {
 			if (msg[j].flags == I2C_M_RD) {
 				/* read registers */
-				u8 ibuf[msg[j].len];
+				u8 ibuf[MAX_XFER_SIZE];
+
+				if (msg[j].len > sizeof(ibuf)) {
+					warn("i2c rd: len=%d is too big!\n",
+					     msg[j].len);
+					return -EOPNOTSUPP;
+				}
+
 				dw210x_op_rw(d->udev, 0x91, 0, 0,
 						ibuf, msg[j].len,
 						DW210X_READ_MSG);
@@ -590,7 +647,14 @@ static int s6x0_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 				} while (len > 0);
 			} else if (j < (num - 1)) {
 				/* write register addr before read */
-				u8 obuf[msg[j].len + 2];
+				u8 obuf[MAX_XFER_SIZE];
+
+				if (2 + msg[j].len > sizeof(obuf)) {
+					warn("i2c wr: len=%d is too big!\n",
+					     msg[j].len);
+					return -EOPNOTSUPP;
+				}
+
 				obuf[0] = msg[j + 1].len;
 				obuf[1] = (msg[j].addr << 1);
 				memcpy(obuf + 2, msg[j].buf, msg[j].len);
@@ -602,7 +666,13 @@ static int s6x0_i2c_transfer(struct i2c_adapter *adap, struct i2c_msg msg[],
 				break;
 			} else {
 				/* write registers */
-				u8 obuf[msg[j].len + 2];
+				u8 obuf[MAX_XFER_SIZE];
+
+				if (2 + msg[j].len > sizeof(obuf)) {
+					warn("i2c wr: len=%d is too big!\n",
+					     msg[j].len);
+					return -EOPNOTSUPP;
+				}
 				obuf[0] = msg[j].len + 1;
 				obuf[1] = (msg[j].addr << 1);
 				memcpy(obuf + 2, msg[j].buf, msg[j].len);
-- 
cgit 


From 65e2f1cb3fe0f0630834b9517ba8f631936f325c Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sat, 2 Nov 2013 07:52:04 -0300
Subject: [media] af9015: Don't use dynamic static allocation

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/usb/dvb-usb-v2/af9015.c:433:1: warning: 'af9015_eeprom_hash' uses dynamic stack allocation [enabled by default]
In this specific case, it is a gcc bug, as the size is a const, but
it is easy to just change it from const to a #define, getting rid of
the gcc warning.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/dvb-usb-v2/af9015.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/media/usb/dvb-usb-v2/af9015.c b/drivers/media/usb/dvb-usb-v2/af9015.c
index d556042cf312..da47d2392f2a 100644
--- a/drivers/media/usb/dvb-usb-v2/af9015.c
+++ b/drivers/media/usb/dvb-usb-v2/af9015.c
@@ -397,12 +397,13 @@ error:
 	return ret;
 }
 
+#define AF9015_EEPROM_SIZE 256
+
 /* hash (and dump) eeprom */
 static int af9015_eeprom_hash(struct dvb_usb_device *d)
 {
 	struct af9015_state *state = d_to_priv(d);
 	int ret, i;
-	static const unsigned int AF9015_EEPROM_SIZE = 256;
 	u8 buf[AF9015_EEPROM_SIZE];
 	struct req_t req = {READ_I2C, AF9015_I2C_EEPROM, 0, 0, 1, 1, NULL};
 
-- 
cgit 


From 7760e148350bf6df95662bc0db3734e9d991cb03 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sat, 2 Nov 2013 08:07:12 -0300
Subject: [media] af9035: Don't use dynamic static allocation

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/usb/dvb-usb-v2/af9035.c:142:1: warning: 'af9035_wr_regs' uses dynamic stack allocation [enabled by default]
	drivers/media/usb/dvb-usb-v2/af9035.c:305:1: warning: 'af9035_i2c_master_xfer' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer to be the max size of
a control URB payload data (64 bytes).

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/dvb-usb-v2/af9035.c | 29 ++++++++++++++++++++++++++---
 1 file changed, 26 insertions(+), 3 deletions(-)

diff --git a/drivers/media/usb/dvb-usb-v2/af9035.c b/drivers/media/usb/dvb-usb-v2/af9035.c
index 1ea17dc2a76e..c8fcd78425bd 100644
--- a/drivers/media/usb/dvb-usb-v2/af9035.c
+++ b/drivers/media/usb/dvb-usb-v2/af9035.c
@@ -21,6 +21,9 @@
 
 #include "af9035.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
 
 static u16 af9035_checksum(const u8 *buf, size_t len)
@@ -126,10 +129,16 @@ exit:
 /* write multiple registers */
 static int af9035_wr_regs(struct dvb_usb_device *d, u32 reg, u8 *val, int len)
 {
-	u8 wbuf[6 + len];
+	u8 wbuf[MAX_XFER_SIZE];
 	u8 mbox = (reg >> 16) & 0xff;
 	struct usb_req req = { CMD_MEM_WR, mbox, sizeof(wbuf), wbuf, 0, NULL };
 
+	if (6 + len > sizeof(wbuf)) {
+		dev_warn(&d->udev->dev, "%s: i2c wr: len=%d is too big!\n",
+			 KBUILD_MODNAME, len);
+		return -EOPNOTSUPP;
+	}
+
 	wbuf[0] = len;
 	wbuf[1] = 2;
 	wbuf[2] = 0;
@@ -228,9 +237,16 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
 					msg[1].len);
 		} else {
 			/* I2C */
-			u8 buf[5 + msg[0].len];
+			u8 buf[MAX_XFER_SIZE];
 			struct usb_req req = { CMD_I2C_RD, 0, sizeof(buf),
 					buf, msg[1].len, msg[1].buf };
+
+			if (5 + msg[0].len > sizeof(buf)) {
+				dev_warn(&d->udev->dev,
+					 "%s: i2c xfer: len=%d is too big!\n",
+					 KBUILD_MODNAME, msg[0].len);
+				return -EOPNOTSUPP;
+			}
 			req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 			buf[0] = msg[1].len;
 			buf[1] = msg[0].addr << 1;
@@ -257,9 +273,16 @@ static int af9035_i2c_master_xfer(struct i2c_adapter *adap,
 					msg[0].len - 3);
 		} else {
 			/* I2C */
-			u8 buf[5 + msg[0].len];
+			u8 buf[MAX_XFER_SIZE];
 			struct usb_req req = { CMD_I2C_WR, 0, sizeof(buf), buf,
 					0, NULL };
+
+			if (5 + msg[0].len > sizeof(buf)) {
+				dev_warn(&d->udev->dev,
+					 "%s: i2c xfer: len=%d is too big!\n",
+					 KBUILD_MODNAME, msg[0].len);
+				return -EOPNOTSUPP;
+			}
 			req.mbox |= ((msg[0].addr & 0x80)  >>  3);
 			buf[0] = msg[0].len;
 			buf[1] = msg[0].addr << 1;
-- 
cgit 


From c98300a0e8cf160aaea60bc05d2cd156a7666173 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sat, 2 Nov 2013 08:13:02 -0300
Subject: [media] mxl111sf: Don't use dynamic static allocation

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/usb/dvb-usb-v2/mxl111sf.c:74:1: warning: 'mxl111sf_ctrl_msg' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer to be the max size of
a control URB payload data (64 bytes).

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/usb/dvb-usb-v2/mxl111sf.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/media/usb/dvb-usb-v2/mxl111sf.c b/drivers/media/usb/dvb-usb-v2/mxl111sf.c
index e97964ef7f56..2627553f7de1 100644
--- a/drivers/media/usb/dvb-usb-v2/mxl111sf.c
+++ b/drivers/media/usb/dvb-usb-v2/mxl111sf.c
@@ -23,6 +23,9 @@
 #include "lgdt3305.h"
 #include "lg2160.h"
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 int dvb_usb_mxl111sf_debug;
 module_param_named(debug, dvb_usb_mxl111sf_debug, int, 0644);
 MODULE_PARM_DESC(debug, "set debugging level "
@@ -57,7 +60,12 @@ int mxl111sf_ctrl_msg(struct dvb_usb_device *d,
 {
 	int wo = (rbuf == NULL || rlen == 0); /* write-only */
 	int ret;
-	u8 sndbuf[1+wlen];
+	u8 sndbuf[MAX_XFER_SIZE];
+
+	if (1 + wlen > sizeof(sndbuf)) {
+		pr_warn("%s: len=%d is too big!\n", __func__, wlen);
+		return -EOPNOTSUPP;
+	}
 
 	pr_debug("%s(wlen = %d, rlen = %d)\n", __func__, wlen, rlen);
 
-- 
cgit 


From ac5b4b6bf0c84c48d7e2e3fce22e35b04282ba76 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Sat, 2 Nov 2013 08:16:47 -0300
Subject: [media] lirc_zilog: Don't use dynamic static allocation

Dynamic static allocation is evil, as Kernel stack is too low, and
ompilation complains about it on some archs:
	drivers/staging/media/lirc/lirc_zilog.c:967:1: warning: 'read' uses dynamic stack allocation [enabled by default]
Instead, let's enforce a limit for the buffer to be 64. That should
be more than enough.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/staging/media/lirc/lirc_zilog.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/media/lirc/lirc_zilog.c b/drivers/staging/media/lirc/lirc_zilog.c
index 11d5338b4f2f..0feeaadf29dc 100644
--- a/drivers/staging/media/lirc/lirc_zilog.c
+++ b/drivers/staging/media/lirc/lirc_zilog.c
@@ -61,6 +61,9 @@
 #include <media/lirc_dev.h>
 #include <media/lirc.h>
 
+/* Max transfer size done by I2C transfer functions */
+#define MAX_XFER_SIZE  64
+
 struct IR;
 
 struct IR_rx {
@@ -941,7 +944,14 @@ static ssize_t read(struct file *filep, char *outbuf, size_t n, loff_t *ppos)
 			schedule();
 			set_current_state(TASK_INTERRUPTIBLE);
 		} else {
-			unsigned char buf[rbuf->chunk_size];
+			unsigned char buf[MAX_XFER_SIZE];
+
+			if (rbuf->chunk_size > sizeof(buf)) {
+				zilog_error("chunk_size is too big (%d)!\n",
+					    rbuf->chunk_size);
+				ret = -EINVAL;
+				break;
+			}
 			m = lirc_buffer_read(rbuf, buf);
 			if (m == rbuf->chunk_size) {
 				ret = copy_to_user((void *)outbuf+written, buf,
-- 
cgit 


From 3cdcf7369cdb3406c61090e453b78cb8d4882ef8 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Fri, 1 Nov 2013 13:59:04 -0300
Subject: [media] platform drivers: Fix build on frv arch

On frv, the following errors happen:
	drivers/media/platform/soc_camera/rcar_vin.c: In function 'rcar_vin_setup':
	drivers/media/platform/soc_camera/rcar_vin.c:284:3: error: implicit declaration of function 'iowrite32' [-Werror=implicit-function-declaration]
	drivers/media/platform/soc_camera/rcar_vin.c: In function 'rcar_vin_request_capture_stop':
	drivers/media/platform/soc_camera/rcar_vin.c:353:2: error: implicit declaration of function 'ioread32' [-Werror=implicit-function-declaration]
This is because this driver forgot to include linux/io.h.

Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Reviewed-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/media/platform/soc_camera/rcar_vin.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/platform/soc_camera/rcar_vin.c b/drivers/media/platform/soc_camera/rcar_vin.c
index b21f777f55e7..6866bb4fbebc 100644
--- a/drivers/media/platform/soc_camera/rcar_vin.c
+++ b/drivers/media/platform/soc_camera/rcar_vin.c
@@ -16,6 +16,7 @@
 
 #include <linux/delay.h>
 #include <linux/interrupt.h>
+#include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/platform_data/camera-rcar.h>
-- 
cgit 


From 885845d78551be7bf8570f6283df8b7a7797c4d1 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 8 Nov 2013 12:50:31 +0100
Subject: ALSA: hda - Apply MacBook fixups for CS4208 correctly

The commit [8fe7b65ab465: ALSA: hda - Apply GPIO setup for MacBooks
with CS4208] added a fixup entry matching with the vendor id 0x106b.
This broke the fixups for previous MBA6,1 and 6,2, since the PCI SSID
vendor id matches before evaluating the codec SSIDs.

We had a similar issue on Mac with Sigmatel codecs, and solve this
problem again similarly, by introducing a skeleton entry matching with
the all MacBooks, then remap to the right one.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=64401
Fixes: 8fe7b65ab465 ('ALSA: hda - Apply GPIO setup for MacBooks with CS4208')
Cc: <stable@vger.kernel.org> [v3.12+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_cirrus.c | 27 +++++++++++++++++++++++++--
 1 file changed, 25 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c
index 1ce1f4067b15..072755c8289c 100644
--- a/sound/pci/hda/patch_cirrus.c
+++ b/sound/pci/hda/patch_cirrus.c
@@ -597,6 +597,7 @@ static int patch_cs420x(struct hda_codec *codec)
  * Its layout is no longer compatible with CS4206/CS4207
  */
 enum {
+	CS4208_MAC_AUTO,
 	CS4208_MBA6,
 	CS4208_GPIO0,
 };
@@ -608,10 +609,14 @@ static const struct hda_model_fixup cs4208_models[] = {
 };
 
 static const struct snd_pci_quirk cs4208_fixup_tbl[] = {
-	/* codec SSID */
+	SND_PCI_QUIRK_VENDOR(0x106b, "Apple", CS4208_MAC_AUTO),
+	{} /* terminator */
+};
+
+/* codec SSID matching */
+static const struct snd_pci_quirk cs4208_mac_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x106b, 0x7100, "MacBookAir 6,1", CS4208_MBA6),
 	SND_PCI_QUIRK(0x106b, 0x7200, "MacBookAir 6,2", CS4208_MBA6),
-	SND_PCI_QUIRK_VENDOR(0x106b, "Apple", CS4208_GPIO0),
 	{} /* terminator */
 };
 
@@ -627,6 +632,20 @@ static void cs4208_fixup_gpio0(struct hda_codec *codec,
 	}
 }
 
+static const struct hda_fixup cs4208_fixups[];
+
+/* remap the fixup from codec SSID and apply it */
+static void cs4208_fixup_mac(struct hda_codec *codec,
+			     const struct hda_fixup *fix, int action)
+{
+	if (action != HDA_FIXUP_ACT_PRE_PROBE)
+		return;
+	snd_hda_pick_fixup(codec, NULL, cs4208_mac_fixup_tbl, cs4208_fixups);
+	if (codec->fixup_id < 0 || codec->fixup_id == CS4208_MAC_AUTO)
+		codec->fixup_id = CS4208_GPIO0; /* default fixup */
+	snd_hda_apply_fixup(codec, action);
+}
+
 static const struct hda_fixup cs4208_fixups[] = {
 	[CS4208_MBA6] = {
 		.type = HDA_FIXUP_PINS,
@@ -638,6 +657,10 @@ static const struct hda_fixup cs4208_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = cs4208_fixup_gpio0,
 	},
+	[CS4208_MAC_AUTO] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = cs4208_fixup_mac,
+	},
 };
 
 /* correct the 0dB offset of input pins */
-- 
cgit 


From 9a22a8f558d09a83965d2bbe168294eb8ffb70e9 Mon Sep 17 00:00:00 2001
From: Kailang Yang <kailang@realtek.com>
Date: Fri, 8 Nov 2013 15:54:49 +0800
Subject: ALSA: hda/realtek - Add new codec ALC255/ALC3234 UAJ supported

New codec ALC255/ALC3234 support multifunction jacks.
It used for menual select the input device.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 104 +++++++++++++++++++++++++++++++++++++++---
 1 file changed, 97 insertions(+), 7 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 6a214662700e..24d924d563aa 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -577,26 +577,35 @@ static void alc_ssid_check(struct hda_codec *codec, const hda_nid_t *ports)
 /*
  * COEF access helper functions
  */
-static int alc_read_coef_idx(struct hda_codec *codec,
-			unsigned int coef_idx)
+
+static int alc_read_coefex_idx(struct hda_codec *codec,
+					hda_nid_t nid,
+					unsigned int coef_idx)
 {
 	unsigned int val;
-	snd_hda_codec_write(codec, 0x20, 0, AC_VERB_SET_COEF_INDEX,
+	snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_COEF_INDEX,
 		    		coef_idx);
-	val = snd_hda_codec_read(codec, 0x20, 0,
+	val = snd_hda_codec_read(codec, nid, 0,
 			 	AC_VERB_GET_PROC_COEF, 0);
 	return val;
 }
 
-static void alc_write_coef_idx(struct hda_codec *codec, unsigned int coef_idx,
+#define alc_read_coef_idx(codec, coef_idx) \
+	alc_read_coefex_idx(codec, 0x20, coef_idx)
+
+static void alc_write_coefex_idx(struct hda_codec *codec, hda_nid_t nid,
+							unsigned int coef_idx,
 							unsigned int coef_val)
 {
-	snd_hda_codec_write(codec, 0x20, 0, AC_VERB_SET_COEF_INDEX,
+	snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_COEF_INDEX,
 			    coef_idx);
-	snd_hda_codec_write(codec, 0x20, 0, AC_VERB_SET_PROC_COEF,
+	snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_PROC_COEF,
 			    coef_val);
 }
 
+#define alc_write_coef_idx(codec, coef_idx, coef_val) \
+	alc_write_coefex_idx(codec, 0x20, coef_idx, coef_val)
+
 /* a special bypass for COEF 0; read the cached value at the second time */
 static unsigned int alc_get_coef0(struct hda_codec *codec)
 {
@@ -3109,6 +3118,19 @@ static void alc_headset_mode_unplugged(struct hda_codec *codec)
 	int val;
 
 	switch (codec->vendor_id) {
+	case 0x10ec0255:
+		/* LDO and MISC control */
+		alc_write_coef_idx(codec, 0x1b, 0x0c0b);
+		/* UAJ function set to menual mode */
+		alc_write_coef_idx(codec, 0x45, 0xd089);
+		/* Direct Drive HP Amp control(Set to verb control)*/
+		val = alc_read_coefex_idx(codec, 0x57, 0x05);
+		alc_write_coefex_idx(codec, 0x57, 0x05, val & ~(1<<14));
+		/* Set MIC2 Vref gate with HP */
+		alc_write_coef_idx(codec, 0x06, 0x6104);
+		/* Direct Drive HP Amp control */
+		alc_write_coefex_idx(codec, 0x57, 0x03, 0x8aa6);
+		break;
 	case 0x10ec0283:
 		alc_write_coef_idx(codec, 0x1b, 0x0c0b);
 		alc_write_coef_idx(codec, 0x45, 0xc429);
@@ -3140,6 +3162,14 @@ static void alc_headset_mode_mic_in(struct hda_codec *codec, hda_nid_t hp_pin,
 	int val;
 
 	switch (codec->vendor_id) {
+	case 0x10ec0255:
+		alc_write_coef_idx(codec, 0x45, 0xc489);
+		snd_hda_set_pin_ctl_cache(codec, hp_pin, 0);
+		alc_write_coefex_idx(codec, 0x57, 0x03, 0x8aa6);
+		/* Set MIC2 Vref gate to normal */
+		alc_write_coef_idx(codec, 0x06, 0x6100);
+		snd_hda_set_pin_ctl_cache(codec, mic_pin, PIN_VREF50);
+		break;
 	case 0x10ec0283:
 		alc_write_coef_idx(codec, 0x45, 0xc429);
 		snd_hda_set_pin_ctl_cache(codec, hp_pin, 0);
@@ -3171,6 +3201,12 @@ static void alc_headset_mode_mic_in(struct hda_codec *codec, hda_nid_t hp_pin,
 static void alc_headset_mode_default(struct hda_codec *codec)
 {
 	switch (codec->vendor_id) {
+	case 0x10ec0255:
+		alc_write_coef_idx(codec, 0x45, 0xc089);
+		alc_write_coef_idx(codec, 0x45, 0xc489);
+		alc_write_coefex_idx(codec, 0x57, 0x03, 0x8ea6);
+		alc_write_coef_idx(codec, 0x49, 0x0049);
+		break;
 	case 0x10ec0283:
 		alc_write_coef_idx(codec, 0x06, 0x2100);
 		alc_write_coef_idx(codec, 0x32, 0x4ea3);
@@ -3194,6 +3230,12 @@ static void alc_headset_mode_default(struct hda_codec *codec)
 static void alc_headset_mode_ctia(struct hda_codec *codec)
 {
 	switch (codec->vendor_id) {
+	case 0x10ec0255:
+		/* Set to CTIA type */
+		alc_write_coef_idx(codec, 0x45, 0xd489);
+		alc_write_coef_idx(codec, 0x1b, 0x0c2b);
+		alc_write_coefex_idx(codec, 0x57, 0x03, 0x8ea6);
+		break;
 	case 0x10ec0283:
 		alc_write_coef_idx(codec, 0x45, 0xd429);
 		alc_write_coef_idx(codec, 0x1b, 0x0c2b);
@@ -3216,6 +3258,12 @@ static void alc_headset_mode_ctia(struct hda_codec *codec)
 static void alc_headset_mode_omtp(struct hda_codec *codec)
 {
 	switch (codec->vendor_id) {
+	case 0x10ec0255:
+		/* Set to OMTP Type */
+		alc_write_coef_idx(codec, 0x45, 0xe489);
+		alc_write_coef_idx(codec, 0x1b, 0x0c2b);
+		alc_write_coefex_idx(codec, 0x57, 0x03, 0x8ea6);
+		break;
 	case 0x10ec0283:
 		alc_write_coef_idx(codec, 0x45, 0xe429);
 		alc_write_coef_idx(codec, 0x1b, 0x0c2b);
@@ -3241,6 +3289,15 @@ static void alc_determine_headset_type(struct hda_codec *codec)
 	struct alc_spec *spec = codec->spec;
 
 	switch (codec->vendor_id) {
+	case 0x10ec0255:
+		/* combo jack auto switch control(Check type)*/
+		alc_write_coef_idx(codec, 0x45, 0xd089);
+		/* combo jack auto switch control(Vref conteol) */
+		alc_write_coef_idx(codec, 0x49, 0x0149);
+		msleep(300);
+		val = alc_read_coef_idx(codec, 0x46);
+		is_ctia = (val & 0x0070) == 0x0070;
+		break;
 	case 0x10ec0283:
 		alc_write_coef_idx(codec, 0x45, 0xd029);
 		msleep(300);
@@ -3387,6 +3444,21 @@ static void alc_fixup_headset_mode_no_hp_mic(struct hda_codec *codec,
 		alc_fixup_headset_mode(codec, fix, action);
 }
 
+static void alc_fixup_headset_mode_alc255(struct hda_codec *codec,
+				const struct hda_fixup *fix, int action)
+{
+	if (action == HDA_FIXUP_ACT_PRE_PROBE) {
+		/* Set to iphone type */
+		alc_write_coef_idx(codec, 0x1b, 0x880b);
+		alc_write_coef_idx(codec, 0x45, 0xd089);
+		alc_write_coef_idx(codec, 0x1b, 0x080b);
+		alc_write_coef_idx(codec, 0x46, 0x0004);
+		alc_write_coef_idx(codec, 0x1b, 0x0c0b);
+		msleep(30);
+	}
+	alc_fixup_headset_mode(codec, fix, action);
+}
+
 static void alc_fixup_headset_mode_alc668(struct hda_codec *codec,
 				const struct hda_fixup *fix, int action)
 {
@@ -3688,6 +3760,8 @@ enum {
 	ALC283_FIXUP_INT_MIC,
 	ALC290_FIXUP_MONO_SPEAKERS,
 	ALC269_FIXUP_THINKPAD_ACPI,
+	ALC255_FIXUP_DELL1_MIC_NO_PRESENCE,
+	ALC255_FIXUP_HEADSET_MODE,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
@@ -3997,6 +4071,20 @@ static const struct hda_fixup alc269_fixups[] = {
 		.chained = true,
 		.chain_id = ALC269_FIXUP_LIMIT_INT_MIC_BOOST
 	},
+	[ALC255_FIXUP_DELL1_MIC_NO_PRESENCE] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			{ 0x19, 0x01a1913c }, /* use as headset mic, without its own jack detect */
+			{ 0x1a, 0x01a1913d }, /* use as headphone mic, without its own jack detect */
+			{ }
+		},
+		.chained = true,
+		.chain_id = ALC255_FIXUP_HEADSET_MODE
+	},
+	[ALC255_FIXUP_HEADSET_MODE] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc_fixup_headset_mode_alc255,
+	},
 };
 
 static const struct snd_pci_quirk alc269_fixup_tbl[] = {
@@ -4039,6 +4127,8 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1028, 0x0609, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x0613, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x0616, "Dell Vostro 5470", ALC290_FIXUP_MONO_SPEAKERS),
+	SND_PCI_QUIRK(0x1028, 0x061f, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE),
+	SND_PCI_QUIRK(0x1028, 0x063f, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x15cc, "Dell X5 Precision", ALC269_FIXUP_DELL2_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x15cd, "Dell X5 Precision", ALC269_FIXUP_DELL2_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x103c, 0x1586, "HP", ALC269_FIXUP_HP_MUTE_LED_MIC2),
-- 
cgit 


From f8c231569a7a455dfa1907294a46ba52b3aa8859 Mon Sep 17 00:00:00 2001
From: Simon Wood <simon@mungewell.org>
Date: Wed, 6 Nov 2013 12:30:40 -0700
Subject: HID:hid-lg4ff: Scale autocentering force properly on Logitech wheel

Adjust the scaling and lineartity to match that of the Windows
driver (from MOMO testing).

Reported-by: Elias Vanderstuyft <elias.vds@gmail.com>
Signed-off-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-lg4ff.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c
index 8782fe1aaa07..530fcd19e90e 100644
--- a/drivers/hid/hid-lg4ff.c
+++ b/drivers/hid/hid-lg4ff.c
@@ -218,12 +218,21 @@ static void hid_lg4ff_set_autocenter_default(struct input_dev *dev, u16 magnitud
 	struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
 	struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
 	__s32 *value = report->field[0]->value;
+	__u32 expand_a, expand_b;
+
+	if (magnitude <= 0xaaaa) {
+		expand_a = 0x0c * magnitude;
+		expand_b = 0x80 * magnitude;
+	} else {
+		expand_a = (0x0c * 0xaaaa) + 0x06 * (magnitude - 0xaaaa);
+		expand_b = (0x80 * 0xaaaa) + 0xff * (magnitude - 0xaaaa);
+	}
 
 	value[0] = 0xfe;
 	value[1] = 0x0d;
-	value[2] = magnitude >> 13;
-	value[3] = magnitude >> 13;
-	value[4] = magnitude >> 8;
+	value[2] = expand_a / 0xaaaa;
+	value[3] = expand_a / 0xaaaa;
+	value[4] = expand_b / 0xaaaa;
 	value[5] = 0x00;
 	value[6] = 0x00;
 
-- 
cgit 


From d2c02da549b468bbb28e67d269bd3c9e10683ff5 Mon Sep 17 00:00:00 2001
From: Simon Wood <simon@mungewell.org>
Date: Wed, 6 Nov 2013 12:30:41 -0700
Subject: HID:hid-lg4ff: Switch autocentering off when strength is set to zero.

When the autocenter is set to zero, this patch issues a command to
totally disable the autocenter - this results in less resistance
in the wheel.

Reported-by: Elias Vanderstuyft <elias.vds@gmail.com>
Signed-off-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-lg4ff.c | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c
index 530fcd19e90e..49f6cc0f9919 100644
--- a/drivers/hid/hid-lg4ff.c
+++ b/drivers/hid/hid-lg4ff.c
@@ -220,6 +220,20 @@ static void hid_lg4ff_set_autocenter_default(struct input_dev *dev, u16 magnitud
 	__s32 *value = report->field[0]->value;
 	__u32 expand_a, expand_b;
 
+	/* De-activate Auto-Center */
+	if (magnitude == 0) {
+		value[0] = 0xf5;
+		value[1] = 0x00;
+		value[2] = 0x00;
+		value[3] = 0x00;
+		value[4] = 0x00;
+		value[5] = 0x00;
+		value[6] = 0x00;
+
+		hid_hw_request(hid, report, HID_REQ_SET_REPORT);
+		return;
+	}
+
 	if (magnitude <= 0xaaaa) {
 		expand_a = 0x0c * magnitude;
 		expand_b = 0x80 * magnitude;
@@ -237,6 +251,17 @@ static void hid_lg4ff_set_autocenter_default(struct input_dev *dev, u16 magnitud
 	value[6] = 0x00;
 
 	hid_hw_request(hid, report, HID_REQ_SET_REPORT);
+
+	/* Activate Auto-Center */
+	value[0] = 0x14;
+	value[1] = 0x00;
+	value[2] = 0x00;
+	value[3] = 0x00;
+	value[4] = 0x00;
+	value[5] = 0x00;
+	value[6] = 0x00;
+
+	hid_hw_request(hid, report, HID_REQ_SET_REPORT);
 }
 
 /* Sends autocentering command compatible with Formula Force EX */
-- 
cgit 


From 56930e7ab86f9f453399cfaa4d78525c1e028a8f Mon Sep 17 00:00:00 2001
From: Simon Wood <simon@mungewell.org>
Date: Wed, 6 Nov 2013 12:30:42 -0700
Subject: HID:hid-lg4ff: ensure ConstantForce is disabled when set to 0

When 'Constant Force' is set to 0 it is not turned off completely,
the wheel feels 'heavy'. This patch issues the '13 00..' command
to ensure that the force in slot 1 (the Constant Force) is
deactivated.

Reported-by: Elias Vanderstuyft <elias.vds@gmail.com>
Signed-off-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-lg4ff.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c
index 49f6cc0f9919..5d140b7a450a 100644
--- a/drivers/hid/hid-lg4ff.c
+++ b/drivers/hid/hid-lg4ff.c
@@ -196,6 +196,21 @@ static int hid_lg4ff_play(struct input_dev *dev, void *data, struct ff_effect *e
 	case FF_CONSTANT:
 		x = effect->u.ramp.start_level + 0x80;	/* 0x80 is no force */
 		CLAMP(x);
+
+		if (x == 0x80) {
+			/* De-activate force in slot-1*/
+			value[0] = 0x13;
+			value[1] = 0x00;
+			value[2] = 0x00;
+			value[3] = 0x00;
+			value[4] = 0x00;
+			value[5] = 0x00;
+			value[6] = 0x00;
+
+			hid_hw_request(hid, report, HID_REQ_SET_REPORT);
+			return 0;
+		}
+
 		value[0] = 0x11;	/* Slot 1 */
 		value[1] = 0x08;
 		value[2] = x;
-- 
cgit 


From 114a55cf9dd1576e7ac56189832cd4d7dc56c218 Mon Sep 17 00:00:00 2001
From: Simon Wood <simon@mungewell.org>
Date: Wed, 6 Nov 2013 12:30:43 -0700
Subject: HID:hid-lg4ff: Initialize device properties before we touch
 autocentering.
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Re-arrange code slightly to ensure that device properties are configured
before calling auto-center command.

Reported-by: Michal Malý <madcatxster@prifuk.cz>
Signed-off-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-lg4ff.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c
index 5d140b7a450a..5492809a579f 100644
--- a/drivers/hid/hid-lg4ff.c
+++ b/drivers/hid/hid-lg4ff.c
@@ -589,17 +589,6 @@ int lg4ff_init(struct hid_device *hid)
 	if (error)
 		return error;
 
-	/* Check if autocentering is available and
-	 * set the centering force to zero by default */
-	if (test_bit(FF_AUTOCENTER, dev->ffbit)) {
-		if (rev_maj == FFEX_REV_MAJ && rev_min == FFEX_REV_MIN)	/* Formula Force EX expects different autocentering command */
-			dev->ff->set_autocenter = hid_lg4ff_set_autocenter_ffex;
-		else
-			dev->ff->set_autocenter = hid_lg4ff_set_autocenter_default;
-
-		dev->ff->set_autocenter(dev, 0);
-	}
-
 	/* Get private driver data */
 	drv_data = hid_get_drvdata(hid);
 	if (!drv_data) {
@@ -620,6 +609,17 @@ int lg4ff_init(struct hid_device *hid)
 	entry->max_range = lg4ff_devices[i].max_range;
 	entry->set_range = lg4ff_devices[i].set_range;
 
+	/* Check if autocentering is available and
+	 * set the centering force to zero by default */
+	if (test_bit(FF_AUTOCENTER, dev->ffbit)) {
+		if (rev_maj == FFEX_REV_MAJ && rev_min == FFEX_REV_MIN)	/* Formula Force EX expects different autocentering command */
+			dev->ff->set_autocenter = hid_lg4ff_set_autocenter_ffex;
+		else
+			dev->ff->set_autocenter = hid_lg4ff_set_autocenter_default;
+
+		dev->ff->set_autocenter(dev, 0);
+	}
+
 	/* Create sysfs interface */
 	error = device_create_file(&hid->dev, &dev_attr_range);
 	if (error)
-- 
cgit 


From 1859762ed538477fc80ada926571d12dc4c9c062 Mon Sep 17 00:00:00 2001
From: Simon Wood <simon@mungewell.org>
Date: Wed, 6 Nov 2013 12:30:44 -0700
Subject: HID:hid-lg4ff: Correct Auto-center strength for wheels other than
 MOMO and MOMO2

The MOMO and MOMO2 wheels have a slightly different autocenter command,
and accept values in the range 0..F (rather than 0..7 for the other wheels).

This patch uses the product ID to determine how to compute the strength.

Signed-off-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-lg4ff.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c
index 5492809a579f..befe0e336471 100644
--- a/drivers/hid/hid-lg4ff.c
+++ b/drivers/hid/hid-lg4ff.c
@@ -234,6 +234,20 @@ static void hid_lg4ff_set_autocenter_default(struct input_dev *dev, u16 magnitud
 	struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
 	__s32 *value = report->field[0]->value;
 	__u32 expand_a, expand_b;
+	struct lg4ff_device_entry *entry;
+	struct lg_drv_data *drv_data;
+
+	drv_data = hid_get_drvdata(hid);
+	if (!drv_data) {
+		hid_err(hid, "Private driver data not found!\n");
+		return;
+	}
+
+	entry = drv_data->device_props;
+	if (!entry) {
+		hid_err(hid, "Device properties not found!\n");
+		return;
+	}
 
 	/* De-activate Auto-Center */
 	if (magnitude == 0) {
@@ -257,6 +271,16 @@ static void hid_lg4ff_set_autocenter_default(struct input_dev *dev, u16 magnitud
 		expand_b = (0x80 * 0xaaaa) + 0xff * (magnitude - 0xaaaa);
 	}
 
+	/* Adjust for non-MOMO wheels */
+	switch (entry->product_id) {
+	case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL:
+	case USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2:
+		break;
+	default:
+		expand_a = expand_a >> 1;
+		break;
+	}
+
 	value[0] = 0xfe;
 	value[1] = 0x0d;
 	value[2] = expand_a / 0xaaaa;
-- 
cgit 


From e078809df5611600965f4d3420c3256260fc3e3d Mon Sep 17 00:00:00 2001
From: Stefan Achatz <erazor_de@users.sourceforge.net>
Date: Fri, 8 Nov 2013 14:12:00 +0100
Subject: HID: roccat: add missing special driver declarations

Forgot two special driver declarations and sorted the list.

Signed-off-by: Stefan Achatz <erazor_de@users.sourceforge.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-core.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 00794229a2cf..ec6ba50e7455 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1801,12 +1801,14 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
 #if IS_ENABLED(CONFIG_HID_ROCCAT)
-	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKUFX) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE_OPTICAL) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEXTD) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
-- 
cgit 


From db2a7df0343a0fb166d369e58bcfe605162dc857 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Tue, 20 Aug 2013 16:45:36 +0200
Subject: microblaze: Remove deprecated IRQF_DISABLED

Removed IRQF_DISABLED as it's no-op and should be removed.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---
 arch/microblaze/kernel/timer.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c
index e4b3f33ef34c..d7abb71abf61 100644
--- a/arch/microblaze/kernel/timer.c
+++ b/arch/microblaze/kernel/timer.c
@@ -148,7 +148,7 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id)
 
 static struct irqaction timer_irqaction = {
 	.handler = timer_interrupt,
-	.flags = IRQF_DISABLED | IRQF_TIMER,
+	.flags = IRQF_TIMER,
 	.name = "timer",
 	.dev_id = &clockevent_xilinx_timer,
 };
-- 
cgit 


From 176195e757df0044623b2086527ad5b5cfde9488 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Mon, 16 Sep 2013 07:45:29 +0200
Subject: microblaze: Use predefined SYSCALL_DEFINE macro

Use standard syscall definition.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---
 arch/microblaze/kernel/sys_microblaze.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/microblaze/kernel/sys_microblaze.c b/arch/microblaze/kernel/sys_microblaze.c
index f905b3ae68c7..e80a6c02ac31 100644
--- a/arch/microblaze/kernel/sys_microblaze.c
+++ b/arch/microblaze/kernel/sys_microblaze.c
@@ -33,9 +33,9 @@
 #include <linux/slab.h>
 #include <asm/syscalls.h>
 
-asmlinkage long sys_mmap(unsigned long addr, unsigned long len,
-			unsigned long prot, unsigned long flags,
-			unsigned long fd, off_t pgoff)
+SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
+		unsigned long, prot, unsigned long, flags, unsigned long, fd,
+		off_t, pgoff)
 {
 	if (pgoff & ~PAGE_MASK)
 		return -EINVAL;
-- 
cgit 


From 99399545d62533b4ae742190b5c6b11f7a5826d9 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Mon, 16 Sep 2013 07:46:23 +0200
Subject: microblaze: Fix bug with mmap2 syscall MB implementation

Fix mmap2 behaviour which incorrectly works with pgoff
not in 4k units.

Reported-by: Rich Felker <dalias@aerifal.cx>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---
 arch/microblaze/kernel/sys_microblaze.c | 11 +++++++++++
 arch/microblaze/kernel/syscall_table.S  |  2 +-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/arch/microblaze/kernel/sys_microblaze.c b/arch/microblaze/kernel/sys_microblaze.c
index e80a6c02ac31..f1e1f666ddde 100644
--- a/arch/microblaze/kernel/sys_microblaze.c
+++ b/arch/microblaze/kernel/sys_microblaze.c
@@ -42,3 +42,14 @@ SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
 
 	return sys_mmap_pgoff(addr, len, prot, flags, fd, pgoff >> PAGE_SHIFT);
 }
+
+SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
+		unsigned long, prot, unsigned long, flags, unsigned long, fd,
+		unsigned long, pgoff)
+{
+	if (pgoff & (~PAGE_MASK >> 12))
+		return -EINVAL;
+
+	return sys_mmap_pgoff(addr, len, prot, flags, fd,
+			      pgoff >> (PAGE_SHIFT - 12));
+}
diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S
index 4fca56cf02f6..b882ad50535b 100644
--- a/arch/microblaze/kernel/syscall_table.S
+++ b/arch/microblaze/kernel/syscall_table.S
@@ -192,7 +192,7 @@ ENTRY(sys_call_table)
 	.long sys_ni_syscall		/* reserved for streams2 */
 	.long sys_vfork		/* 190 */
 	.long sys_getrlimit
-	.long sys_mmap_pgoff		/* mmap2 */
+	.long sys_mmap2
 	.long sys_truncate64
 	.long sys_ftruncate64
 	.long sys_stat64		/* 195 */
-- 
cgit 


From 63d7bd1b171d5e7190c50dd3e48b1c561d7803d8 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Fri, 14 Jun 2013 09:53:53 +0200
Subject: microblaze: Remove incorrect file path

Trivial.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---
 arch/microblaze/boot/dts/Makefile | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/microblaze/boot/dts/Makefile b/arch/microblaze/boot/dts/Makefile
index c3b3a5d67b89..c4982d16e555 100644
--- a/arch/microblaze/boot/dts/Makefile
+++ b/arch/microblaze/boot/dts/Makefile
@@ -1,6 +1,4 @@
 #
-# arch/microblaze/boot/Makefile
-#
 
 obj-y += linked_dtb.o
 
-- 
cgit 


From a404d5576bbe586a1097a8bc2f32c5f22651b0aa Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Tue, 17 Sep 2013 22:30:31 +0200
Subject: blktrace: Send BLK_TN_PROCESS events to all running traces

Currently each task sends BLK_TN_PROCESS event to the first traced
device it interacts with after a new trace is started. When there are
several traced devices and the task accesses more devices, this logic
can result in BLK_TN_PROCESS being sent several times to some devices
while it is never sent to other devices. Thus blkparse doesn't display
command name when parsing some blktrace files.

Fix the problem by sending BLK_TN_PROCESS event to all traced devices
when a task interacts with any of them.

Signed-off-by: Jan Kara <jack@suse.cz>
Review-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 include/linux/blktrace_api.h |  2 ++
 kernel/trace/blktrace.c      | 33 +++++++++++++++++++++++++++------
 2 files changed, 29 insertions(+), 6 deletions(-)

diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
index 7c2e030e72f1..a12f6ed91c84 100644
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -5,6 +5,7 @@
 #include <linux/relay.h>
 #include <linux/compat.h>
 #include <uapi/linux/blktrace_api.h>
+#include <linux/list.h>
 
 #if defined(CONFIG_BLK_DEV_IO_TRACE)
 
@@ -23,6 +24,7 @@ struct blk_trace {
 	struct dentry *dir;
 	struct dentry *dropped_file;
 	struct dentry *msg_file;
+	struct list_head running_list;
 	atomic_t dropped;
 };
 
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index b8b8560bfb95..7f727b34280d 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -26,6 +26,7 @@
 #include <linux/export.h>
 #include <linux/time.h>
 #include <linux/uaccess.h>
+#include <linux/list.h>
 
 #include <trace/events/block.h>
 
@@ -38,6 +39,9 @@ static unsigned int blktrace_seq __read_mostly = 1;
 static struct trace_array *blk_tr;
 static bool blk_tracer_enabled __read_mostly;
 
+static LIST_HEAD(running_trace_list);
+static __cacheline_aligned_in_smp DEFINE_SPINLOCK(running_trace_lock);
+
 /* Select an alternative, minimalistic output than the original one */
 #define TRACE_BLK_OPT_CLASSIC	0x1
 
@@ -107,10 +111,18 @@ record_it:
  * Send out a notify for this process, if we haven't done so since a trace
  * started
  */
-static void trace_note_tsk(struct blk_trace *bt, struct task_struct *tsk)
+static void trace_note_tsk(struct task_struct *tsk)
 {
+	unsigned long flags;
+	struct blk_trace *bt;
+
 	tsk->btrace_seq = blktrace_seq;
-	trace_note(bt, tsk->pid, BLK_TN_PROCESS, tsk->comm, sizeof(tsk->comm));
+	spin_lock_irqsave(&running_trace_lock, flags);
+	list_for_each_entry(bt, &running_trace_list, running_list) {
+		trace_note(bt, tsk->pid, BLK_TN_PROCESS, tsk->comm,
+			   sizeof(tsk->comm));
+	}
+	spin_unlock_irqrestore(&running_trace_lock, flags);
 }
 
 static void trace_note_time(struct blk_trace *bt)
@@ -229,16 +241,15 @@ static void __blk_add_trace(struct blk_trace *bt, sector_t sector, int bytes,
 		goto record_it;
 	}
 
+	if (unlikely(tsk->btrace_seq != blktrace_seq))
+		trace_note_tsk(tsk);
+
 	/*
 	 * A word about the locking here - we disable interrupts to reserve
 	 * some space in the relay per-cpu buffer, to prevent an irq
 	 * from coming in and stepping on our toes.
 	 */
 	local_irq_save(flags);
-
-	if (unlikely(tsk->btrace_seq != blktrace_seq))
-		trace_note_tsk(bt, tsk);
-
 	t = relay_reserve(bt->rchan, sizeof(*t) + pdu_len);
 	if (t) {
 		sequence = per_cpu_ptr(bt->sequence, cpu);
@@ -477,6 +488,7 @@ int do_blk_trace_setup(struct request_queue *q, char *name, dev_t dev,
 	bt->dir = dir;
 	bt->dev = dev;
 	atomic_set(&bt->dropped, 0);
+	INIT_LIST_HEAD(&bt->running_list);
 
 	ret = -EIO;
 	bt->dropped_file = debugfs_create_file("dropped", 0444, dir, bt,
@@ -601,6 +613,9 @@ int blk_trace_startstop(struct request_queue *q, int start)
 			blktrace_seq++;
 			smp_mb();
 			bt->trace_state = Blktrace_running;
+			spin_lock_irq(&running_trace_lock);
+			list_add(&bt->running_list, &running_trace_list);
+			spin_unlock_irq(&running_trace_lock);
 
 			trace_note_time(bt);
 			ret = 0;
@@ -608,6 +623,9 @@ int blk_trace_startstop(struct request_queue *q, int start)
 	} else {
 		if (bt->trace_state == Blktrace_running) {
 			bt->trace_state = Blktrace_stopped;
+			spin_lock_irq(&running_trace_lock);
+			list_del_init(&bt->running_list);
+			spin_unlock_irq(&running_trace_lock);
 			relay_flush(bt->rchan);
 			ret = 0;
 		}
@@ -1472,6 +1490,9 @@ static int blk_trace_remove_queue(struct request_queue *q)
 	if (atomic_dec_and_test(&blk_probes_ref))
 		blk_unregister_tracepoints();
 
+	spin_lock_irq(&running_trace_lock);
+	list_del(&bt->running_list);
+	spin_unlock_irq(&running_trace_lock);
 	blk_trace_free(bt);
 	return 0;
 }
-- 
cgit 


From 4912aa6c11e6a5d910264deedbec2075c6f1bb73 Mon Sep 17 00:00:00 2001
From: Jeff Moyer <jmoyer@redhat.com>
Date: Tue, 8 Oct 2013 14:36:41 -0400
Subject: block: fix race between request completion and timeout handling

crocode i2c_i801 i2c_core iTCO_wdt iTCO_vendor_support shpchp ioatdma dca be2net sg ses enclosure ext4 mbcache jbd2 sd_mod crc_t10dif ahci megaraid_sas(U) dm_mirror dm_region_hash dm_log dm_mod [last unloaded: scsi_wait_scan]

Pid: 491, comm: scsi_eh_0 Tainted: G        W  ----------------   2.6.32-220.13.1.el6.x86_64 #1 IBM  -[8722PAX]-/00D1461
RIP: 0010:[<ffffffff8124e424>]  [<ffffffff8124e424>] blk_requeue_request+0x94/0xa0
RSP: 0018:ffff881057eefd60  EFLAGS: 00010012
RAX: ffff881d99e3e8a8 RBX: ffff881d99e3e780 RCX: ffff881d99e3e8a8
RDX: ffff881d99e3e8a8 RSI: ffff881d99e3e780 RDI: ffff881d99e3e780
RBP: ffff881057eefd80 R08: ffff881057eefe90 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff881057f92338
R13: 0000000000000000 R14: ffff881057f92338 R15: ffff883058188000
FS:  0000000000000000(0000) GS:ffff880040200000(0000) knlGS:0000000000000000
CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
CR2: 00000000006d3ec0 CR3: 000000302cd7d000 CR4: 00000000000406b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Process scsi_eh_0 (pid: 491, threadinfo ffff881057eee000, task ffff881057e29540)
Stack:
 0000000000001057 0000000000000286 ffff8810275efdc0 ffff881057f16000
<0> ffff881057eefdd0 ffffffff81362323 ffff881057eefe20 ffffffff8135f393
<0> ffff881057e29af8 ffff8810275efdc0 ffff881057eefe78 ffff881057eefe90
Call Trace:
 [<ffffffff81362323>] __scsi_queue_insert+0xa3/0x150
 [<ffffffff8135f393>] ? scsi_eh_ready_devs+0x5e3/0x850
 [<ffffffff81362a23>] scsi_queue_insert+0x13/0x20
 [<ffffffff8135e4d4>] scsi_eh_flush_done_q+0x104/0x160
 [<ffffffff8135fb6b>] scsi_error_handler+0x35b/0x660
 [<ffffffff8135f810>] ? scsi_error_handler+0x0/0x660
 [<ffffffff810908c6>] kthread+0x96/0xa0
 [<ffffffff8100c14a>] child_rip+0xa/0x20
 [<ffffffff81090830>] ? kthread+0x0/0xa0
 [<ffffffff8100c140>] ? child_rip+0x0/0x20
Code: 00 00 eb d1 4c 8b 2d 3c 8f 97 00 4d 85 ed 74 bf 49 8b 45 00 49 83 c5 08 48 89 de 4c 89 e7 ff d0 49 8b 45 00 48 85 c0 75 eb eb a4 <0f> 0b eb fe 0f 1f 84 00 00 00 00 00 55 48 89 e5 0f 1f 44 00 00
RIP  [<ffffffff8124e424>] blk_requeue_request+0x94/0xa0
 RSP <ffff881057eefd60>

The RIP is this line:
        BUG_ON(blk_queued_rq(rq));

After digging through the code, I think there may be a race between the
request completion and the timer handler running.

A timer is started for each request put on the device's queue (see
blk_start_request->blk_add_timer).  If the request does not complete
before the timer expires, the timer handler (blk_rq_timed_out_timer)
will mark the request complete atomically:

static inline int blk_mark_rq_complete(struct request *rq)
{
        return test_and_set_bit(REQ_ATOM_COMPLETE, &rq->atomic_flags);
}

and then call blk_rq_timed_out.  The latter function will call
scsi_times_out, which will return one of BLK_EH_HANDLED,
BLK_EH_RESET_TIMER or BLK_EH_NOT_HANDLED.  If BLK_EH_RESET_TIMER is
returned, blk_clear_rq_complete is called, and blk_add_timer is again
called to simply wait longer for the request to complete.

Now, if the request happens to complete while this is going on, what
happens?  Given that we know the completion handler will bail if it
finds the REQ_ATOM_COMPLETE bit set, we need to focus on the completion
handler running after that bit is cleared.  So, from the above
paragraph, after the call to blk_clear_rq_complete.  If the completion
sets REQ_ATOM_COMPLETE before the BUG_ON in blk_add_timer, we go boom
there (I haven't seen this in the cores).  Next, if we get the
completion before the call to list_add_tail, then the timer will
eventually fire for an old req, which may either be freed or reallocated
(there is evidence that this might be the case).  Finally, if the
completion comes in *after* the addition to the timeout list, I think
it's harmless.  The request will be removed from the timeout list,
req_atom_complete will be set, and all will be well.

This will only actually explain the coredumps *IF* the request
structure was freed, reallocated *and* queued before the error handler
thread had a chance to process it.  That is possible, but it may make
sense to keep digging for another race.  I think that if this is what
was happening, we would see other instances of this problem showing up
as null pointer or garbage pointer dereferences, for example when the
request structure was not re-used.  It looks like we actually do run
into that situation in other reports.

This patch moves the BUG_ON(test_bit(REQ_ATOM_COMPLETE,
&req->atomic_flags)); from blk_add_timer to the only caller that could
trip over it (blk_start_request).  It then inverts the calls to
blk_clear_rq_complete and blk_add_timer in blk_rq_timed_out to address
the race.  I've boot tested this patch, but nothing more.

Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Acked-by: Hannes Reinecke <hare@suse.de>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-core.c    | 1 +
 block/blk-timeout.c | 3 +--
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index 0a00e4ecf87c..5e00b5a58f6a 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -2227,6 +2227,7 @@ void blk_start_request(struct request *req)
 	if (unlikely(blk_bidi_rq(req)))
 		req->next_rq->resid_len = blk_rq_bytes(req->next_rq);
 
+	BUG_ON(test_bit(REQ_ATOM_COMPLETE, &req->atomic_flags));
 	blk_add_timer(req);
 }
 EXPORT_SYMBOL(blk_start_request);
diff --git a/block/blk-timeout.c b/block/blk-timeout.c
index 65f103563969..655ba909cd6a 100644
--- a/block/blk-timeout.c
+++ b/block/blk-timeout.c
@@ -91,8 +91,8 @@ static void blk_rq_timed_out(struct request *req)
 		__blk_complete_request(req);
 		break;
 	case BLK_EH_RESET_TIMER:
-		blk_clear_rq_complete(req);
 		blk_add_timer(req);
+		blk_clear_rq_complete(req);
 		break;
 	case BLK_EH_NOT_HANDLED:
 		/*
@@ -174,7 +174,6 @@ void blk_add_timer(struct request *req)
 		return;
 
 	BUG_ON(!list_empty(&req->timeout_list));
-	BUG_ON(test_bit(REQ_ATOM_COMPLETE, &req->atomic_flags));
 
 	/*
 	 * Some LLDs, like scsi, peek at the timeout to prevent a
-- 
cgit 


From fff4996b7db7955414ac74386efa5e07fd766b50 Mon Sep 17 00:00:00 2001
From: Mikulas Patocka <mpatocka@redhat.com>
Date: Mon, 14 Oct 2013 12:11:36 -0400
Subject: blk-core: Fix memory corruption if blkcg_init_queue fails

If blkcg_init_queue fails, blk_alloc_queue_node doesn't call bdi_destroy
to clean up structures allocated by the backing dev.

------------[ cut here ]------------
WARNING: at lib/debugobjects.c:260 debug_print_object+0x85/0xa0()
ODEBUG: free active (active state 0) object type: percpu_counter hint:           (null)
Modules linked in: dm_loop dm_mod ip6table_filter ip6_tables uvesafb cfbcopyarea cfbimgblt cfbfillrect fbcon font bitblit fbcon_rotate fbcon_cw fbcon_ud fbcon_ccw softcursor fb fbdev ipt_MASQUERADE iptable_nat nf_nat_ipv4 msr nf_conntrack_ipv4 nf_defrag_ipv4 xt_state ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc tun ipv6 cpufreq_userspace cpufreq_stats cpufreq_powersave cpufreq_ondemand cpufreq_conservative spadfs fuse hid_generic usbhid hid raid0 md_mod dmi_sysfs nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack lm85 hwmon_vid snd_usb_audio snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_page_alloc snd_hwdep snd_usbmidi_lib snd_rawmidi snd soundcore acpi_cpufreq freq_table mperf sata_svw serverworks kvm_amd ide_core ehci_pci ohci_hcd libata ehci_hcd kvm usbcore tg3 usb_common libphy k10temp pcspkr ptp i2c_piix4 i2c_core evdev microcode hwmon rtc_cmos pps_core e100 skge floppy mii processor button unix
CPU: 0 PID: 2739 Comm: lvchange Tainted: G        W
3.10.15-devel #14
Hardware name: empty empty/S3992-E, BIOS 'V1.06   ' 06/09/2009
 0000000000000009 ffff88023c3c1ae8 ffffffff813c8fd4 ffff88023c3c1b20
 ffffffff810399eb ffff88043d35cd58 ffffffff81651940 ffff88023c3c1bf8
 ffffffff82479d90 0000000000000005 ffff88023c3c1b80 ffffffff81039a67
Call Trace:
 [<ffffffff813c8fd4>] dump_stack+0x19/0x1b
 [<ffffffff810399eb>] warn_slowpath_common+0x6b/0xa0
 [<ffffffff81039a67>] warn_slowpath_fmt+0x47/0x50
 [<ffffffff8122aaaf>] ? debug_check_no_obj_freed+0xcf/0x250
 [<ffffffff81229a15>] debug_print_object+0x85/0xa0
 [<ffffffff8122abe3>] debug_check_no_obj_freed+0x203/0x250
 [<ffffffff8113c4ac>] kmem_cache_free+0x20c/0x3a0
 [<ffffffff811f6709>] blk_alloc_queue_node+0x2a9/0x2c0
 [<ffffffff811f672e>] blk_alloc_queue+0xe/0x10
 [<ffffffffa04c0093>] dm_create+0x1a3/0x530 [dm_mod]
 [<ffffffffa04c6bb0>] ? list_version_get_info+0xe0/0xe0 [dm_mod]
 [<ffffffffa04c6c07>] dev_create+0x57/0x2b0 [dm_mod]
 [<ffffffffa04c6bb0>] ? list_version_get_info+0xe0/0xe0 [dm_mod]
 [<ffffffffa04c6bb0>] ? list_version_get_info+0xe0/0xe0 [dm_mod]
 [<ffffffffa04c6528>] ctl_ioctl+0x268/0x500 [dm_mod]
 [<ffffffff81097662>] ? get_lock_stats+0x22/0x70
 [<ffffffffa04c67ce>] dm_ctl_ioctl+0xe/0x20 [dm_mod]
 [<ffffffff81161aad>] do_vfs_ioctl+0x2ed/0x520
 [<ffffffff8116cfc7>] ? fget_light+0x377/0x4e0
 [<ffffffff81161d2b>] SyS_ioctl+0x4b/0x90
 [<ffffffff813cff16>] system_call_fastpath+0x1a/0x1f
---[ end trace 4b5ff0d55673d986 ]---
------------[ cut here ]------------

This fix should be backported to stable kernels starting with 2.6.37. Note
that in the kernels prior to 3.5 the affected code is different, but the
bug is still there - bdi_init is called and bdi_destroy isn't.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: stable@kernel.org	# 2.6.37+
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-core.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index 5e00b5a58f6a..0c611d89d748 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -645,10 +645,12 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)
 	__set_bit(QUEUE_FLAG_BYPASS, &q->queue_flags);
 
 	if (blkcg_init_queue(q))
-		goto fail_id;
+		goto fail_bdi;
 
 	return q;
 
+fail_bdi:
+	bdi_destroy(&q->backing_dev_info);
 fail_id:
 	ida_simple_remove(&blk_queue_ida, q->id);
 fail_q:
-- 
cgit 


From 3ec981e30fae1f3c8728a05c730acaa1f627bcfb Mon Sep 17 00:00:00 2001
From: Mikulas Patocka <mpatocka@redhat.com>
Date: Mon, 14 Oct 2013 12:12:24 -0400
Subject: loop: fix crash if blk_alloc_queue fails

loop: fix crash if blk_alloc_queue fails

If blk_alloc_queue fails, loop_add cleans up, but it doesn't clean up the
identifier allocated with idr_alloc. That causes crash on module unload in
idr_for_each(&loop_index_idr, &loop_exit_cb, NULL); where we attempt to
remove non-existed device with that id.

BUG: unable to handle kernel NULL pointer dereference at 0000000000000380
IP: [<ffffffff812057c9>] del_gendisk+0x19/0x2d0
PGD 43d399067 PUD 43d0ad067 PMD 0
Oops: 0000 [#1] PREEMPT SMP
Modules linked in: loop(-) dm_snapshot dm_zero dm_mirror dm_region_hash dm_log dm_loop dm_mod ip6table_filter ip6_tables uvesafb cfbcopyarea cfbimgblt cfbfillrect fbcon font bitblit fbcon_rotate fbcon_cw fbcon_ud fbcon_ccw softcursor fb fbdev msr ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_conntrack_ipv4 nf_defrag_ipv4 xt_state ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc tun ipv6 cpufreq_userspace cpufreq_stats cpufreq_ondemand cpufreq_conservative cpufreq_powersave spadfs fuse hid_generic usbhid hid raid0 md_mod dmi_sysfs nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack snd_usb_audio snd_pcm_oss snd_mixer_oss snd_pcm snd_timer snd_page_alloc lm85 hwmon_vid snd_hwdep snd_usbmidi_lib snd_rawmidi snd soundcore acpi_cpufreq ohci_hcd freq_table tg3 ehci_pci mperf ehci_hcd kvm_amd kvm sata_svw serverworks libphy libata ide_core k10temp usbcore hwmon microcode ptp pcspkr pps_core e100 skge mii usb_common i2c_piix4 floppy evdev rtc_cmos i2c_core processor but!
 ton unix
CPU: 7 PID: 2735 Comm: rmmod Tainted: G        W    3.10.15-devel #15
Hardware name: empty empty/S3992-E, BIOS 'V1.06   ' 06/09/2009
task: ffff88043d38e780 ti: ffff88043d21e000 task.ti: ffff88043d21e000
RIP: 0010:[<ffffffff812057c9>]  [<ffffffff812057c9>] del_gendisk+0x19/0x2d0
RSP: 0018:ffff88043d21fe10  EFLAGS: 00010282
RAX: ffffffffa05102e0 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffff88043ea82800 RDI: 0000000000000000
RBP: ffff88043d21fe48 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000001 R11: 0000000000000000 R12: 00000000000000ff
R13: 0000000000000080 R14: 0000000000000000 R15: ffff88043ea82800
FS:  00007ff646534700(0000) GS:ffff880447000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000380 CR3: 000000043e9bf000 CR4: 00000000000007e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Stack:
 ffffffff8100aba4 0000000000000092 ffff88043d21fe48 ffff88043ea82800
 00000000000000ff ffff88043d21fe98 0000000000000000 ffff88043d21fe60
 ffffffffa05102b4 0000000000000000 ffff88043d21fe70 ffffffffa05102ec
Call Trace:
 [<ffffffff8100aba4>] ? native_sched_clock+0x24/0x80
 [<ffffffffa05102b4>] loop_remove+0x14/0x40 [loop]
 [<ffffffffa05102ec>] loop_exit_cb+0xc/0x10 [loop]
 [<ffffffff81217b74>] idr_for_each+0x104/0x190
 [<ffffffffa05102e0>] ? loop_remove+0x40/0x40 [loop]
 [<ffffffff8109adc5>] ? trace_hardirqs_on_caller+0x105/0x1d0
 [<ffffffffa05135dc>] loop_exit+0x34/0xa58 [loop]
 [<ffffffff810a98ea>] SyS_delete_module+0x13a/0x260
 [<ffffffff81221d5e>] ? trace_hardirqs_on_thunk+0x3a/0x3f
 [<ffffffff813cff16>] system_call_fastpath+0x1a/0x1f
Code: f0 4c 8b 6d f8 c9 c3 66 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 56 41 55 4c 8d af 80 00 00 00 41 54 53 48 89 fb 48 83 ec 18 <48> 83 bf 80 03 00
00 00 74 4d e8 98 fe ff ff 31 f6 48 c7 c7 20
RIP  [<ffffffff812057c9>] del_gendisk+0x19/0x2d0
 RSP <ffff88043d21fe10>
CR2: 0000000000000380
---[ end trace 64ec069ec70f1309 ]---

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: stable@kernel.org	# 3.1+
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/loop.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 40e715531aa6..de7f4563d1e1 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1633,7 +1633,7 @@ static int loop_add(struct loop_device **l, int i)
 	err = -ENOMEM;
 	lo->lo_queue = blk_alloc_queue(GFP_KERNEL);
 	if (!lo->lo_queue)
-		goto out_free_dev;
+		goto out_free_idr;
 
 	disk = lo->lo_disk = alloc_disk(1 << part_shift);
 	if (!disk)
@@ -1678,6 +1678,8 @@ static int loop_add(struct loop_device **l, int i)
 
 out_free_queue:
 	blk_cleanup_queue(lo->lo_queue);
+out_free_idr:
+	idr_remove(&loop_index_idr, i);
 out_free_dev:
 	kfree(lo);
 out:
-- 
cgit 


From a207f5937630dd35bd2550620bef416937a1365e Mon Sep 17 00:00:00 2001
From: Mikulas Patocka <mpatocka@redhat.com>
Date: Mon, 14 Oct 2013 12:13:24 -0400
Subject: block: fix a probe argument to blk_register_region

The probe function is supposed to return NULL on failure (as we can see in
kobj_lookup: kobj = probe(dev, index, data); ... if (kobj) return kobj;

However, in loop and brd, it returns negative error from ERR_PTR.

This causes a crash if we simulate disk allocation failure and run
less -f /dev/loop0 because the negative number is interpreted as a pointer:

BUG: unable to handle kernel NULL pointer dereference at 00000000000002b4
IP: [<ffffffff8118b188>] __blkdev_get+0x28/0x450
PGD 23c677067 PUD 23d6d1067 PMD 0
Oops: 0000 [#1] PREEMPT SMP
Modules linked in: loop hpfs nvidia(PO) ip6table_filter ip6_tables uvesafb cfbcopyarea cfbimgblt cfbfillrect fbcon font bitblit fbcon_rotate fbcon_cw fbcon_ud fbcon_ccw softcursor fb fbdev msr ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_conntrack_ipv4 nf_defrag_ipv4 xt_state ipt_REJECT xt_tcpudp iptable_filter ip_tables x_tables bridge stp llc tun ipv6 cpufreq_stats cpufreq_ondemand cpufreq_userspace cpufreq_powersave cpufreq_conservative hid_generic spadfs usbhid hid fuse raid0 snd_usb_audio snd_pcm_oss snd_mixer_oss md_mod snd_pcm snd_timer snd_page_alloc snd_hwdep snd_usbmidi_lib dmi_sysfs snd_rawmidi nf_nat_ftp nf_nat nf_conntrack_ftp nf_conntrack snd soundcore lm85 hwmon_vid ohci_hcd ehci_pci ehci_hcd serverworks sata_svw libata acpi_cpufreq freq_table mperf ide_core usbcore kvm_amd kvm tg3 i2c_piix4 libphy microcode e100 usb_common ptp skge i2c_core pcspkr k10temp evdev floppy hwmon pps_core mii rtc_cmos button processor unix [last unloaded: nvidia]
CPU: 1 PID: 6831 Comm: less Tainted: P        W  O 3.10.15-devel #18
Hardware name: empty empty/S3992-E, BIOS 'V1.06   ' 06/09/2009
task: ffff880203cc6bc0 ti: ffff88023e47c000 task.ti: ffff88023e47c000
RIP: 0010:[<ffffffff8118b188>]  [<ffffffff8118b188>] __blkdev_get+0x28/0x450
RSP: 0018:ffff88023e47dbd8  EFLAGS: 00010286
RAX: ffffffffffffff74 RBX: ffffffffffffff74 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: ffff88023e47dc18 R08: 0000000000000002 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88023f519658
R13: ffffffff8118c300 R14: 0000000000000000 R15: ffff88023f519640
FS:  00007f2070bf7700(0000) GS:ffff880247400000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000000002b4 CR3: 000000023da1d000 CR4: 00000000000007e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Stack:
 0000000000000002 0000001d00000000 000000003e47dc50 ffff88023f519640
 ffff88043d5bb668 ffffffff8118c300 ffff88023d683550 ffff88023e47de60
 ffff88023e47dc98 ffffffff8118c10d 0000001d81605698 0000000000000292
Call Trace:
 [<ffffffff8118c300>] ? blkdev_get_by_dev+0x60/0x60
 [<ffffffff8118c10d>] blkdev_get+0x1dd/0x370
 [<ffffffff8118c300>] ? blkdev_get_by_dev+0x60/0x60
 [<ffffffff813cea6c>] ? _raw_spin_unlock+0x2c/0x50
 [<ffffffff8118c300>] ? blkdev_get_by_dev+0x60/0x60
 [<ffffffff8118c365>] blkdev_open+0x65/0x80
 [<ffffffff8114d12e>] do_dentry_open.isra.18+0x23e/0x2f0
 [<ffffffff8114d214>] finish_open+0x34/0x50
 [<ffffffff8115e122>] do_last.isra.62+0x2d2/0xc50
 [<ffffffff8115eb58>] path_openat.isra.63+0xb8/0x4d0
 [<ffffffff81115a8e>] ? might_fault+0x4e/0xa0
 [<ffffffff8115f4f0>] do_filp_open+0x40/0x90
 [<ffffffff813cea6c>] ? _raw_spin_unlock+0x2c/0x50
 [<ffffffff8116db85>] ? __alloc_fd+0xa5/0x1f0
 [<ffffffff8114e45f>] do_sys_open+0xef/0x1d0
 [<ffffffff8114e559>] SyS_open+0x19/0x20
 [<ffffffff813cff16>] system_call_fastpath+0x1a/0x1f
Code: 44 00 00 55 48 89 e5 41 57 49 89 ff 41 56 41 89 d6 41 55 41 54 4c 8d 67 18 53 48 83 ec 18 89 75 cc e9 f2 00 00 00 0f 1f 44 00 00 <48> 8b 80 40 03 00 00 48 89 df 4c 8b 68 58 e8 d5
a4 07 00 44 89
RIP  [<ffffffff8118b188>] __blkdev_get+0x28/0x450
 RSP <ffff88023e47dbd8>
CR2: 00000000000002b4
---[ end trace bb7f32dbf02398dc ]---

The brd change should be backported to stable kernels starting with 2.6.25.
The loop change should be backported to stable kernels starting with 2.6.22.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: stable@kernel.org	# 2.6.22+
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/brd.c  | 2 +-
 drivers/block/loop.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index 9bf4371755f2..d91f1a56e861 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -545,7 +545,7 @@ static struct kobject *brd_probe(dev_t dev, int *part, void *data)
 
 	mutex_lock(&brd_devices_mutex);
 	brd = brd_init_one(MINOR(dev) >> part_shift);
-	kobj = brd ? get_disk(brd->brd_disk) : ERR_PTR(-ENOMEM);
+	kobj = brd ? get_disk(brd->brd_disk) : NULL;
 	mutex_unlock(&brd_devices_mutex);
 
 	*part = 0;
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index de7f4563d1e1..dbdb88a4976c 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -1743,7 +1743,7 @@ static struct kobject *loop_probe(dev_t dev, int *part, void *data)
 	if (err < 0)
 		err = loop_add(&lo, MINOR(dev) >> part_shift);
 	if (err < 0)
-		kobj = ERR_PTR(err);
+		kobj = NULL;
 	else
 		kobj = get_disk(lo->lo_disk);
 	mutex_unlock(&loop_index_mutex);
-- 
cgit 


From 8077c0d983ab276ec5f2700df56a64d671781905 Mon Sep 17 00:00:00 2001
From: Mikulas Patocka <mpatocka@redhat.com>
Date: Mon, 14 Oct 2013 12:14:13 -0400
Subject: bdi: test bdi_init failure

There were two places where return value from bdi_init was not tested.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 fs/char_dev.c               | 3 ++-
 include/linux/backing-dev.h | 4 ++--
 mm/swap.c                   | 3 ++-
 3 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/fs/char_dev.c b/fs/char_dev.c
index afc2bb691780..b9bc05b9513a 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -574,7 +574,8 @@ static struct kobject *base_probe(dev_t dev, int *part, void *data)
 void __init chrdev_init(void)
 {
 	cdev_map = kobj_map_init(base_probe, &chrdevs_lock);
-	bdi_init(&directly_mappable_cdev_bdi);
+	if (bdi_init(&directly_mappable_cdev_bdi))
+		panic("Failed to init directly mappable cdev bdi");
 }
 
 
diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h
index 5f66d519a726..24819001f5c8 100644
--- a/include/linux/backing-dev.h
+++ b/include/linux/backing-dev.h
@@ -109,7 +109,7 @@ struct backing_dev_info {
 #endif
 };
 
-int bdi_init(struct backing_dev_info *bdi);
+int __must_check bdi_init(struct backing_dev_info *bdi);
 void bdi_destroy(struct backing_dev_info *bdi);
 
 __printf(3, 4)
@@ -117,7 +117,7 @@ int bdi_register(struct backing_dev_info *bdi, struct device *parent,
 		const char *fmt, ...);
 int bdi_register_dev(struct backing_dev_info *bdi, dev_t dev);
 void bdi_unregister(struct backing_dev_info *bdi);
-int bdi_setup_and_register(struct backing_dev_info *, char *, unsigned int);
+int __must_check bdi_setup_and_register(struct backing_dev_info *, char *, unsigned int);
 void bdi_start_writeback(struct backing_dev_info *bdi, long nr_pages,
 			enum wb_reason reason);
 void bdi_start_background_writeback(struct backing_dev_info *bdi);
diff --git a/mm/swap.c b/mm/swap.c
index 759c3caf44bd..7a9f80d451f5 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -934,7 +934,8 @@ void __init swap_setup(void)
 #ifdef CONFIG_SWAP
 	int i;
 
-	bdi_init(swapper_spaces[0].backing_dev_info);
+	if (bdi_init(swapper_spaces[0].backing_dev_info))
+		panic("Failed to init swap bdi");
 	for (i = 0; i < MAX_SWAPFILES; i++) {
 		spin_lock_init(&swapper_spaces[i].tree_lock);
 		INIT_LIST_HEAD(&swapper_spaces[i].i_mmap_nonlinear);
-- 
cgit 


From 170d800af83f3ab2b5ced0e370a861e023dee22a Mon Sep 17 00:00:00 2001
From: Christoph Lameter <cl@linux.com>
Date: Tue, 15 Oct 2013 12:22:29 -0600
Subject: block: Replace __get_cpu_var uses

__get_cpu_var() is used for multiple purposes in the kernel source. One of
them is address calculation via the form &__get_cpu_var(x).  This calculates
the address for the instance of the percpu variable of the current processor
based on an offset.

Other use cases are for storing and retrieving data from the current
processors percpu area.  __get_cpu_var() can be used as an lvalue when
writing data or on the right side of an assignment.

__get_cpu_var() is defined as :

#define __get_cpu_var(var) (*this_cpu_ptr(&(var)))

__get_cpu_var() always only does an address determination. However, store
and retrieve operations could use a segment prefix (or global register on
other platforms) to avoid the address calculation.

this_cpu_write() and this_cpu_read() can directly take an offset into a
percpu area and use optimized assembly code to read and write per cpu
variables.

This patch converts __get_cpu_var into either an explicit address
calculation using this_cpu_ptr() or into a use of this_cpu operations that
use the offset.  Thereby address calculations are avoided and less registers
are used when code is generated.

At the end of the patch set all uses of __get_cpu_var have been removed so
the macro is removed too.

The patch set includes passes over all arches as well. Once these operations
are used throughout then specialized macros can be defined in non -x86
arches as well in order to optimize per cpu access by f.e.  using a global
register that may be set to the per cpu base.

Transformations done to __get_cpu_var()

1. Determine the address of the percpu instance of the current processor.

	DEFINE_PER_CPU(int, y);
	int *x = &__get_cpu_var(y);

    Converts to

	int *x = this_cpu_ptr(&y);

2. Same as #1 but this time an array structure is involved.

	DEFINE_PER_CPU(int, y[20]);
	int *x = __get_cpu_var(y);

    Converts to

	int *x = this_cpu_ptr(y);

3. Retrieve the content of the current processors instance of a per cpu
variable.

	DEFINE_PER_CPU(int, y);
	int x = __get_cpu_var(y)

   Converts to

	int x = __this_cpu_read(y);

4. Retrieve the content of a percpu struct

	DEFINE_PER_CPU(struct mystruct, y);
	struct mystruct x = __get_cpu_var(y);

   Converts to

	memcpy(&x, this_cpu_ptr(&y), sizeof(x));

5. Assignment to a per cpu variable

	DEFINE_PER_CPU(int, y)
	__get_cpu_var(y) = x;

   Converts to

	this_cpu_write(y, x);

6. Increment/Decrement etc of a per cpu variable

	DEFINE_PER_CPU(int, y);
	__get_cpu_var(y)++

   Converts to

	this_cpu_inc(y)

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-iopoll.c  | 6 +++---
 block/blk-softirq.c | 8 ++++----
 fs/fscache/object.c | 2 +-
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/block/blk-iopoll.c b/block/blk-iopoll.c
index 4b8d9b541112..1855bf51edb0 100644
--- a/block/blk-iopoll.c
+++ b/block/blk-iopoll.c
@@ -35,7 +35,7 @@ void blk_iopoll_sched(struct blk_iopoll *iop)
 	unsigned long flags;
 
 	local_irq_save(flags);
-	list_add_tail(&iop->list, &__get_cpu_var(blk_cpu_iopoll));
+	list_add_tail(&iop->list, this_cpu_ptr(&blk_cpu_iopoll));
 	__raise_softirq_irqoff(BLOCK_IOPOLL_SOFTIRQ);
 	local_irq_restore(flags);
 }
@@ -79,7 +79,7 @@ EXPORT_SYMBOL(blk_iopoll_complete);
 
 static void blk_iopoll_softirq(struct softirq_action *h)
 {
-	struct list_head *list = &__get_cpu_var(blk_cpu_iopoll);
+	struct list_head *list = this_cpu_ptr(&blk_cpu_iopoll);
 	int rearm = 0, budget = blk_iopoll_budget;
 	unsigned long start_time = jiffies;
 
@@ -201,7 +201,7 @@ static int blk_iopoll_cpu_notify(struct notifier_block *self,
 
 		local_irq_disable();
 		list_splice_init(&per_cpu(blk_cpu_iopoll, cpu),
-				 &__get_cpu_var(blk_cpu_iopoll));
+				 this_cpu_ptr(&blk_cpu_iopoll));
 		__raise_softirq_irqoff(BLOCK_IOPOLL_SOFTIRQ);
 		local_irq_enable();
 	}
diff --git a/block/blk-softirq.c b/block/blk-softirq.c
index ec9e60636f43..ce4b8bfd3d27 100644
--- a/block/blk-softirq.c
+++ b/block/blk-softirq.c
@@ -23,7 +23,7 @@ static void blk_done_softirq(struct softirq_action *h)
 	struct list_head *cpu_list, local_list;
 
 	local_irq_disable();
-	cpu_list = &__get_cpu_var(blk_cpu_done);
+	cpu_list = this_cpu_ptr(&blk_cpu_done);
 	list_replace_init(cpu_list, &local_list);
 	local_irq_enable();
 
@@ -44,7 +44,7 @@ static void trigger_softirq(void *data)
 	struct list_head *list;
 
 	local_irq_save(flags);
-	list = &__get_cpu_var(blk_cpu_done);
+	list = this_cpu_ptr(&blk_cpu_done);
 	list_add_tail(&rq->csd.list, list);
 
 	if (list->next == &rq->csd.list)
@@ -90,7 +90,7 @@ static int blk_cpu_notify(struct notifier_block *self, unsigned long action,
 
 		local_irq_disable();
 		list_splice_init(&per_cpu(blk_cpu_done, cpu),
-				 &__get_cpu_var(blk_cpu_done));
+				 this_cpu_ptr(&blk_cpu_done));
 		raise_softirq_irqoff(BLOCK_SOFTIRQ);
 		local_irq_enable();
 	}
@@ -135,7 +135,7 @@ void __blk_complete_request(struct request *req)
 	if (ccpu == cpu || shared) {
 		struct list_head *list;
 do_local:
-		list = &__get_cpu_var(blk_cpu_done);
+		list = this_cpu_ptr(&blk_cpu_done);
 		list_add_tail(&req->csd.list, list);
 
 		/*
diff --git a/fs/fscache/object.c b/fs/fscache/object.c
index 86d75a60b20c..3b0712213993 100644
--- a/fs/fscache/object.c
+++ b/fs/fscache/object.c
@@ -796,7 +796,7 @@ void fscache_enqueue_object(struct fscache_object *object)
  */
 bool fscache_object_sleep_till_congested(signed long *timeoutp)
 {
-	wait_queue_head_t *cong_wq = &__get_cpu_var(fscache_object_cong_wait);
+	wait_queue_head_t *cong_wq = this_cpu_ptr(&fscache_object_cong_wait);
 	DEFINE_WAIT(wait);
 
 	if (fscache_object_congested())
-- 
cgit 


From eb1c160b22655fd4ec44be732d6594fd1b1e44f4 Mon Sep 17 00:00:00 2001
From: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
Date: Tue, 15 Oct 2013 16:42:16 -0600
Subject: elevator: Fix a race in elevator switching and md device
 initialization

The soft lockup below happens at the boot time of the system using dm
multipath and the udev rules to switch scheduler.

[  356.127001] BUG: soft lockup - CPU#3 stuck for 22s! [sh:483]
[  356.127001] RIP: 0010:[<ffffffff81072a7d>]  [<ffffffff81072a7d>] lock_timer_base.isra.35+0x1d/0x50
...
[  356.127001] Call Trace:
[  356.127001]  [<ffffffff81073810>] try_to_del_timer_sync+0x20/0x70
[  356.127001]  [<ffffffff8118b08a>] ? kmem_cache_alloc_node_trace+0x20a/0x230
[  356.127001]  [<ffffffff810738b2>] del_timer_sync+0x52/0x60
[  356.127001]  [<ffffffff812ece22>] cfq_exit_queue+0x32/0xf0
[  356.127001]  [<ffffffff812c98df>] elevator_exit+0x2f/0x50
[  356.127001]  [<ffffffff812c9f21>] elevator_change+0xf1/0x1c0
[  356.127001]  [<ffffffff812caa50>] elv_iosched_store+0x20/0x50
[  356.127001]  [<ffffffff812d1d09>] queue_attr_store+0x59/0xb0
[  356.127001]  [<ffffffff812143f6>] sysfs_write_file+0xc6/0x140
[  356.127001]  [<ffffffff811a326d>] vfs_write+0xbd/0x1e0
[  356.127001]  [<ffffffff811a3ca9>] SyS_write+0x49/0xa0
[  356.127001]  [<ffffffff8164e899>] system_call_fastpath+0x16/0x1b

This is caused by a race between md device initialization by multipathd and
shell script to switch the scheduler using sysfs.

 - multipathd:
   SyS_ioctl -> do_vfs_ioctl -> dm_ctl_ioctl -> ctl_ioctl -> table_load
   -> dm_setup_md_queue -> blk_init_allocated_queue -> elevator_init
    q->elevator = elevator_alloc(q, e); // not yet initialized

 - sh -c 'echo deadline > /sys/$DEVPATH/queue/scheduler':
   elevator_switch (in the call trace above)
    struct elevator_queue *old = q->elevator;
    q->elevator = elevator_alloc(q, new_e);
    elevator_exit(old);                 // lockup! (*)

 - multipathd: (cont.)
    err = e->ops.elevator_init_fn(q);   // init fails; q->elevator is modified

(*) When del_timer_sync() is called, lock_timer_base() will loop infinitely
while timer->base == NULL. In this case, as timer will never initialized,
it results in lockup.

This patch introduces acquisition of q->sysfs_lock around elevator_init()
into blk_init_allocated_queue(), to provide mutual exclusion between
initialization of the q->scheduler and switching of the scheduler.

This should fix this bugzilla:
https://bugzilla.redhat.com/show_bug.cgi?id=902012

Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-core.c | 10 +++++++++-
 block/elevator.c |  6 ++++++
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/block/blk-core.c b/block/blk-core.c
index 0c611d89d748..fce4b9387f36 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -741,9 +741,17 @@ blk_init_allocated_queue(struct request_queue *q, request_fn_proc *rfn,
 
 	q->sg_reserved_size = INT_MAX;
 
+	/* Protect q->elevator from elevator_change */
+	mutex_lock(&q->sysfs_lock);
+
 	/* init elevator */
-	if (elevator_init(q, NULL))
+	if (elevator_init(q, NULL)) {
+		mutex_unlock(&q->sysfs_lock);
 		return NULL;
+	}
+
+	mutex_unlock(&q->sysfs_lock);
+
 	return q;
 }
 EXPORT_SYMBOL(blk_init_allocated_queue);
diff --git a/block/elevator.c b/block/elevator.c
index 2bcbd8cc14d4..249cc5e10906 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -186,6 +186,12 @@ int elevator_init(struct request_queue *q, char *name)
 	struct elevator_type *e = NULL;
 	int err;
 
+	/*
+	 * q->sysfs_lock must be held to provide mutual exclusion between
+	 * elevator_switch() and here.
+	 */
+	lockdep_assert_held(&q->sysfs_lock);
+
 	if (unlikely(q->elevator))
 		return 0;
 
-- 
cgit 


From 7c8a3679e3d8e9d92d58f282161760a0e247df97 Mon Sep 17 00:00:00 2001
From: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
Date: Tue, 15 Oct 2013 16:42:19 -0600
Subject: elevator: acquire q->sysfs_lock in elevator_change()

Add locking of q->sysfs_lock into elevator_change() (an exported function)
to ensure it is held to protect q->elevator from elevator_init(), even if
elevator_change() is called from non-sysfs paths.
sysfs path (elv_iosched_store) uses __elevator_change(), non-locking
version, as the lock is already taken by elv_iosched_store().

Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/elevator.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/block/elevator.c b/block/elevator.c
index 249cc5e10906..b7ff2861b6bd 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -965,7 +965,7 @@ fail_init:
 /*
  * Switch this queue to the given IO scheduler.
  */
-int elevator_change(struct request_queue *q, const char *name)
+static int __elevator_change(struct request_queue *q, const char *name)
 {
 	char elevator_name[ELV_NAME_MAX];
 	struct elevator_type *e;
@@ -987,6 +987,18 @@ int elevator_change(struct request_queue *q, const char *name)
 
 	return elevator_switch(q, e);
 }
+
+int elevator_change(struct request_queue *q, const char *name)
+{
+	int ret;
+
+	/* Protect q->elevator from elevator_init() */
+	mutex_lock(&q->sysfs_lock);
+	ret = __elevator_change(q, name);
+	mutex_unlock(&q->sysfs_lock);
+
+	return ret;
+}
 EXPORT_SYMBOL(elevator_change);
 
 ssize_t elv_iosched_store(struct request_queue *q, const char *name,
@@ -997,7 +1009,7 @@ ssize_t elv_iosched_store(struct request_queue *q, const char *name,
 	if (!q->elevator)
 		return count;
 
-	ret = elevator_change(q, name);
+	ret = __elevator_change(q, name);
 	if (!ret)
 		return count;
 
-- 
cgit 


From d82ae52e68892338068e7559a0c0657193341ce4 Mon Sep 17 00:00:00 2001
From: Mike Snitzer <snitzer@redhat.com>
Date: Fri, 18 Oct 2013 09:44:49 -0600
Subject: block: properly stack underlying max_segment_size to DM device

Without this patch all DM devices will default to BLK_MAX_SEGMENT_SIZE
(65536) even if the underlying device(s) have a larger value -- this is
due to blk_stack_limits() using min_not_zero() when stacking the
max_segment_size limit.

1073741824

before patch:
65536

after patch:
1073741824

Reported-by: Lukasz Flis <l.flis@cyfronet.pl>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org # v3.3+
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-settings.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/block/blk-settings.c b/block/blk-settings.c
index c50ecf0ea3b1..53309333c2f0 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -144,6 +144,7 @@ void blk_set_stacking_limits(struct queue_limits *lim)
 	lim->discard_zeroes_data = 1;
 	lim->max_segments = USHRT_MAX;
 	lim->max_hw_sectors = UINT_MAX;
+	lim->max_segment_size = UINT_MAX;
 	lim->max_sectors = UINT_MAX;
 	lim->max_write_same_sectors = UINT_MAX;
 }
-- 
cgit 


From 23779fbc99302dddab7f056ae47c3463169cbb64 Mon Sep 17 00:00:00 2001
From: Alireza Haghdoost <alireza@cs.umn.edu>
Date: Wed, 23 Oct 2013 17:08:16 +0100
Subject: block: Enable sysfs nomerge control for I/O requests in the plug list

This patch enables the sysfs to control I/O request merge
functionality in the plug list. While this control has been
implemented for the request queue, it was dismissed in the plug list.
Therefore, block layer merges requests together (or attempt to merge)
even if the merge capability was disable using sysfs nomerge parameter
value 2.

This limitation is directly affects functionality of io_submit()
system call. The system call enables user to submit a bunch of IO
requests from user space using struct iocb **ios input argument.
However, the unconditioned merging functionality in the plug list
potentially merges these requests together down the road. Therefore,
there is no way to distinguish between an application sending bunch of
sequential IOs and an application sending one big IO. Ultimately, all
requests generated by the former app merge within the plug list
together and looks similar to the second app.

While the merging functionality is a desirable feature to improve the
performance of IO subsystem for some applications, it is not useful
for other application like ours at all.

Signed-off-by: Alireza Haghdoost <alireza@cs.umn.edu>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>

Coding style modified.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/block/blk-core.c b/block/blk-core.c
index fce4b9387f36..25f13479f552 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1429,6 +1429,9 @@ static bool attempt_plug_merge(struct request_queue *q, struct bio *bio,
 	struct request *rq;
 	bool ret = false;
 
+	if (blk_queue_nomerges(q))
+		goto out;
+
 	plug = current->plug;
 	if (!plug)
 		goto out;
-- 
cgit 


From e0ce0eacb3197ad6e4ae37006c73af9411f97ecc Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 7 Aug 2013 14:20:17 -0700
Subject: block: Use rw_copy_check_uvector()

No need for silly open coding - and struct sg_iovec has exactly the same
layout as struct iovec...

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/scsi_ioctl.c | 39 ++++++++++-----------------------------
 1 file changed, 10 insertions(+), 29 deletions(-)

diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c
index a5ffcc988f0b..625e3e471d65 100644
--- a/block/scsi_ioctl.c
+++ b/block/scsi_ioctl.c
@@ -286,7 +286,8 @@ static int sg_io(struct request_queue *q, struct gendisk *bd_disk,
 		struct sg_io_hdr *hdr, fmode_t mode)
 {
 	unsigned long start_time;
-	int writing = 0, ret = 0;
+	ssize_t ret = 0;
+	int writing = 0;
 	struct request *rq;
 	char sense[SCSI_SENSE_BUFFERSIZE];
 	struct bio *bio;
@@ -321,37 +322,16 @@ static int sg_io(struct request_queue *q, struct gendisk *bd_disk,
 	}
 
 	if (hdr->iovec_count) {
-		const int size = sizeof(struct sg_iovec) * hdr->iovec_count;
 		size_t iov_data_len;
-		struct sg_iovec *sg_iov;
 		struct iovec *iov;
-		int i;
 
-		sg_iov = kmalloc(size, GFP_KERNEL);
-		if (!sg_iov) {
-			ret = -ENOMEM;
+		ret = rw_copy_check_uvector(-1, hdr->dxferp, hdr->iovec_count,
+					    0, NULL, &iov);
+		if (ret < 0)
 			goto out;
-		}
-
-		if (copy_from_user(sg_iov, hdr->dxferp, size)) {
-			kfree(sg_iov);
-			ret = -EFAULT;
-			goto out;
-		}
 
-		/*
-		 * Sum up the vecs, making sure they don't overflow
-		 */
-		iov = (struct iovec *) sg_iov;
-		iov_data_len = 0;
-		for (i = 0; i < hdr->iovec_count; i++) {
-			if (iov_data_len + iov[i].iov_len < iov_data_len) {
-				kfree(sg_iov);
-				ret = -EINVAL;
-				goto out;
-			}
-			iov_data_len += iov[i].iov_len;
-		}
+		iov_data_len = ret;
+		ret = 0;
 
 		/* SG_IO howto says that the shorter of the two wins */
 		if (hdr->dxfer_len < iov_data_len) {
@@ -361,9 +341,10 @@ static int sg_io(struct request_queue *q, struct gendisk *bd_disk,
 			iov_data_len = hdr->dxfer_len;
 		}
 
-		ret = blk_rq_map_user_iov(q, rq, NULL, sg_iov, hdr->iovec_count,
+		ret = blk_rq_map_user_iov(q, rq, NULL, (struct sg_iovec *) iov,
+					  hdr->iovec_count,
 					  iov_data_len, GFP_KERNEL);
-		kfree(sg_iov);
+		kfree(iov);
 	} else if (hdr->dxfer_len)
 		ret = blk_rq_map_user(q, rq, NULL, hdr->dxferp, hdr->dxfer_len,
 				      GFP_KERNEL);
-- 
cgit 


From 6678d83f18386eb103f8345024e52c5abe61725c Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 7 Aug 2013 11:14:32 -0700
Subject: block: Consolidate duplicated bio_trim() implementations

Someone cut and pasted md's md_trim_bio() into xen-blkfront.c. Come on,
we should know better than this.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Neil Brown <neilb@suse.de>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/xen-blkfront.c | 53 +-------------------------------------------
 drivers/md/md.c              | 40 ---------------------------------
 drivers/md/md.h              |  1 -
 drivers/md/raid1.c           | 10 ++++-----
 drivers/md/raid10.c          | 18 +++++++--------
 fs/bio.c                     | 46 ++++++++++++++++++++++++++++++++++++++
 include/linux/bio.h          |  1 +
 7 files changed, 61 insertions(+), 108 deletions(-)

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index a4660bbee8a6..8d53ed293606 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -1336,57 +1336,6 @@ static int blkfront_probe(struct xenbus_device *dev,
 	return 0;
 }
 
-/*
- * This is a clone of md_trim_bio, used to split a bio into smaller ones
- */
-static void trim_bio(struct bio *bio, int offset, int size)
-{
-	/* 'bio' is a cloned bio which we need to trim to match
-	 * the given offset and size.
-	 * This requires adjusting bi_sector, bi_size, and bi_io_vec
-	 */
-	int i;
-	struct bio_vec *bvec;
-	int sofar = 0;
-
-	size <<= 9;
-	if (offset == 0 && size == bio->bi_size)
-		return;
-
-	bio->bi_sector += offset;
-	bio->bi_size = size;
-	offset <<= 9;
-	clear_bit(BIO_SEG_VALID, &bio->bi_flags);
-
-	while (bio->bi_idx < bio->bi_vcnt &&
-	       bio->bi_io_vec[bio->bi_idx].bv_len <= offset) {
-		/* remove this whole bio_vec */
-		offset -= bio->bi_io_vec[bio->bi_idx].bv_len;
-		bio->bi_idx++;
-	}
-	if (bio->bi_idx < bio->bi_vcnt) {
-		bio->bi_io_vec[bio->bi_idx].bv_offset += offset;
-		bio->bi_io_vec[bio->bi_idx].bv_len -= offset;
-	}
-	/* avoid any complications with bi_idx being non-zero*/
-	if (bio->bi_idx) {
-		memmove(bio->bi_io_vec, bio->bi_io_vec+bio->bi_idx,
-			(bio->bi_vcnt - bio->bi_idx) * sizeof(struct bio_vec));
-		bio->bi_vcnt -= bio->bi_idx;
-		bio->bi_idx = 0;
-	}
-	/* Make sure vcnt and last bv are not too big */
-	bio_for_each_segment(bvec, bio, i) {
-		if (sofar + bvec->bv_len > size)
-			bvec->bv_len = size - sofar;
-		if (bvec->bv_len == 0) {
-			bio->bi_vcnt = i;
-			break;
-		}
-		sofar += bvec->bv_len;
-	}
-}
-
 static void split_bio_end(struct bio *bio, int error)
 {
 	struct split_bio *split_bio = bio->bi_private;
@@ -1522,7 +1471,7 @@ static int blkif_recover(struct blkfront_info *info)
 					   (unsigned int)(bio->bi_size >> 9) - offset);
 				cloned_bio = bio_clone(bio, GFP_NOIO);
 				BUG_ON(cloned_bio == NULL);
-				trim_bio(cloned_bio, offset, size);
+				bio_trim(cloned_bio, offset, size);
 				cloned_bio->bi_private = split_bio;
 				cloned_bio->bi_end_io = split_bio_end;
 				submit_bio(cloned_bio->bi_rw, cloned_bio);
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 561a65f82e26..752119068d66 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -183,46 +183,6 @@ struct bio *bio_clone_mddev(struct bio *bio, gfp_t gfp_mask,
 }
 EXPORT_SYMBOL_GPL(bio_clone_mddev);
 
-void md_trim_bio(struct bio *bio, int offset, int size)
-{
-	/* 'bio' is a cloned bio which we need to trim to match
-	 * the given offset and size.
-	 * This requires adjusting bi_sector, bi_size, and bi_io_vec
-	 */
-	int i;
-	struct bio_vec *bvec;
-	int sofar = 0;
-
-	size <<= 9;
-	if (offset == 0 && size == bio->bi_size)
-		return;
-
-	clear_bit(BIO_SEG_VALID, &bio->bi_flags);
-
-	bio_advance(bio, offset << 9);
-
-	bio->bi_size = size;
-
-	/* avoid any complications with bi_idx being non-zero*/
-	if (bio->bi_idx) {
-		memmove(bio->bi_io_vec, bio->bi_io_vec+bio->bi_idx,
-			(bio->bi_vcnt - bio->bi_idx) * sizeof(struct bio_vec));
-		bio->bi_vcnt -= bio->bi_idx;
-		bio->bi_idx = 0;
-	}
-	/* Make sure vcnt and last bv are not too big */
-	bio_for_each_segment(bvec, bio, i) {
-		if (sofar + bvec->bv_len > size)
-			bvec->bv_len = size - sofar;
-		if (bvec->bv_len == 0) {
-			bio->bi_vcnt = i;
-			break;
-		}
-		sofar += bvec->bv_len;
-	}
-}
-EXPORT_SYMBOL_GPL(md_trim_bio);
-
 /*
  * We have a system wide 'event count' that is incremented
  * on any 'interesting' event, and readers of /proc/mdstat
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 608050c43f17..c96456c16700 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -617,7 +617,6 @@ extern struct bio *bio_clone_mddev(struct bio *bio, gfp_t gfp_mask,
 				   struct mddev *mddev);
 extern struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs,
 				   struct mddev *mddev);
-extern void md_trim_bio(struct bio *bio, int offset, int size);
 
 extern void md_unplug(struct blk_plug_cb *cb, bool from_schedule);
 static inline int mddev_check_plugged(struct mddev *mddev)
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index aacf6bf352d8..af6681b19776 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1097,8 +1097,8 @@ read_again:
 		r1_bio->read_disk = rdisk;
 
 		read_bio = bio_clone_mddev(bio, GFP_NOIO, mddev);
-		md_trim_bio(read_bio, r1_bio->sector - bio->bi_sector,
-			    max_sectors);
+		bio_trim(read_bio, r1_bio->sector - bio->bi_sector,
+			 max_sectors);
 
 		r1_bio->bios[rdisk] = read_bio;
 
@@ -1266,7 +1266,7 @@ read_again:
 			continue;
 
 		mbio = bio_clone_mddev(bio, GFP_NOIO, mddev);
-		md_trim_bio(mbio, r1_bio->sector - bio->bi_sector, max_sectors);
+		bio_trim(mbio, r1_bio->sector - bio->bi_sector, max_sectors);
 
 		if (first_clone) {
 			/* do behind I/O ?
@@ -2126,7 +2126,7 @@ static int narrow_write_error(struct r1bio *r1_bio, int i)
 		wbio->bi_sector = r1_bio->sector;
 		wbio->bi_size = r1_bio->sectors << 9;
 
-		md_trim_bio(wbio, sector - r1_bio->sector, sectors);
+		bio_trim(wbio, sector - r1_bio->sector, sectors);
 		wbio->bi_sector += rdev->data_offset;
 		wbio->bi_bdev = rdev->bdev;
 		if (submit_bio_wait(WRITE, wbio) == 0)
@@ -2241,7 +2241,7 @@ read_more:
 		}
 		r1_bio->read_disk = disk;
 		bio = bio_clone_mddev(r1_bio->master_bio, GFP_NOIO, mddev);
-		md_trim_bio(bio, r1_bio->sector - bio->bi_sector, max_sectors);
+		bio_trim(bio, r1_bio->sector - bio->bi_sector, max_sectors);
 		r1_bio->bios[r1_bio->read_disk] = bio;
 		rdev = conf->mirrors[disk].rdev;
 		printk_ratelimited(KERN_ERR
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 73dc8a377522..7c3508abb5e1 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1302,8 +1302,8 @@ read_again:
 		slot = r10_bio->read_slot;
 
 		read_bio = bio_clone_mddev(bio, GFP_NOIO, mddev);
-		md_trim_bio(read_bio, r10_bio->sector - bio->bi_sector,
-			    max_sectors);
+		bio_trim(read_bio, r10_bio->sector - bio->bi_sector,
+			 max_sectors);
 
 		r10_bio->devs[slot].bio = read_bio;
 		r10_bio->devs[slot].rdev = rdev;
@@ -1510,8 +1510,8 @@ retry_write:
 		if (r10_bio->devs[i].bio) {
 			struct md_rdev *rdev = conf->mirrors[d].rdev;
 			mbio = bio_clone_mddev(bio, GFP_NOIO, mddev);
-			md_trim_bio(mbio, r10_bio->sector - bio->bi_sector,
-				    max_sectors);
+			bio_trim(mbio, r10_bio->sector - bio->bi_sector,
+				 max_sectors);
 			r10_bio->devs[i].bio = mbio;
 
 			mbio->bi_sector	= (r10_bio->devs[i].addr+
@@ -1553,8 +1553,8 @@ retry_write:
 				rdev = conf->mirrors[d].rdev;
 			}
 			mbio = bio_clone_mddev(bio, GFP_NOIO, mddev);
-			md_trim_bio(mbio, r10_bio->sector - bio->bi_sector,
-				    max_sectors);
+			bio_trim(mbio, r10_bio->sector - bio->bi_sector,
+				 max_sectors);
 			r10_bio->devs[i].repl_bio = mbio;
 
 			mbio->bi_sector	= (r10_bio->devs[i].addr +
@@ -2614,7 +2614,7 @@ static int narrow_write_error(struct r10bio *r10_bio, int i)
 			sectors = sect_to_write;
 		/* Write at 'sector' for 'sectors' */
 		wbio = bio_clone_mddev(bio, GFP_NOIO, mddev);
-		md_trim_bio(wbio, sector - bio->bi_sector, sectors);
+		bio_trim(wbio, sector - bio->bi_sector, sectors);
 		wbio->bi_sector = (r10_bio->devs[i].addr+
 				   choose_data_offset(r10_bio, rdev) +
 				   (sector - r10_bio->sector));
@@ -2687,9 +2687,7 @@ read_more:
 		(unsigned long long)r10_bio->sector);
 	bio = bio_clone_mddev(r10_bio->master_bio,
 			      GFP_NOIO, mddev);
-	md_trim_bio(bio,
-		    r10_bio->sector - bio->bi_sector,
-		    max_sectors);
+	bio_trim(bio, r10_bio->sector - bio->bi_sector, max_sectors);
 	r10_bio->devs[slot].bio = bio;
 	r10_bio->devs[slot].rdev = rdev;
 	bio->bi_sector = r10_bio->devs[slot].addr
diff --git a/fs/bio.c b/fs/bio.c
index ea5035da4d9a..2bdb4e25ee77 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -1804,6 +1804,52 @@ struct bio_pair *bio_split(struct bio *bi, int first_sectors)
 }
 EXPORT_SYMBOL(bio_split);
 
+/**
+ * bio_trim - trim a bio
+ * @bio:	bio to trim
+ * @offset:	number of sectors to trim from the front of @bio
+ * @size:	size we want to trim @bio to, in sectors
+ */
+void bio_trim(struct bio *bio, int offset, int size)
+{
+	/* 'bio' is a cloned bio which we need to trim to match
+	 * the given offset and size.
+	 * This requires adjusting bi_sector, bi_size, and bi_io_vec
+	 */
+	int i;
+	struct bio_vec *bvec;
+	int sofar = 0;
+
+	size <<= 9;
+	if (offset == 0 && size == bio->bi_size)
+		return;
+
+	clear_bit(BIO_SEG_VALID, &bio->bi_flags);
+
+	bio_advance(bio, offset << 9);
+
+	bio->bi_size = size;
+
+	/* avoid any complications with bi_idx being non-zero*/
+	if (bio->bi_idx) {
+		memmove(bio->bi_io_vec, bio->bi_io_vec+bio->bi_idx,
+			(bio->bi_vcnt - bio->bi_idx) * sizeof(struct bio_vec));
+		bio->bi_vcnt -= bio->bi_idx;
+		bio->bi_idx = 0;
+	}
+	/* Make sure vcnt and last bv are not too big */
+	bio_for_each_segment(bvec, bio, i) {
+		if (sofar + bvec->bv_len > size)
+			bvec->bv_len = size - sofar;
+		if (bvec->bv_len == 0) {
+			bio->bi_vcnt = i;
+			break;
+		}
+		sofar += bvec->bv_len;
+	}
+}
+EXPORT_SYMBOL_GPL(bio_trim);
+
 /**
  *      bio_sector_offset - Find hardware sector offset in bio
  *      @bio:           bio to inspect
diff --git a/include/linux/bio.h b/include/linux/bio.h
index ec48bac5b039..162036aca741 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -218,6 +218,7 @@ struct bio_pair {
 };
 extern struct bio_pair *bio_split(struct bio *bi, int first_sectors);
 extern void bio_pair_release(struct bio_pair *dbio);
+extern void bio_trim(struct bio *bio, int offset, int size);
 
 extern struct bio_set *bioset_create(unsigned int, unsigned int);
 extern void bioset_free(struct bio_set *);
-- 
cgit 


From f8c5e94486671ffcac696886c246baa6ba89b5cf Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Sun, 3 Nov 2013 22:23:39 +0800
Subject: kernel: trace: blktrace: remove redundent memcpy() in
 compat_blk_trace_setup()

do_blk_trace_setup() will fully initialize 'buts.name', so can remove
the related memcpy(). And also use BLKTRACE_BDEV_SIZE and ARRAY_SIZE
instead of hard code number '32'.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 include/linux/blktrace_api.h | 2 +-
 kernel/trace/blktrace.c      | 3 +--
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
index a12f6ed91c84..afc1343df3c7 100644
--- a/include/linux/blktrace_api.h
+++ b/include/linux/blktrace_api.h
@@ -89,7 +89,7 @@ static inline int blk_trace_init_sysfs(struct device *dev)
 #ifdef CONFIG_COMPAT
 
 struct compat_blk_user_trace_setup {
-	char name[32];
+	char name[BLKTRACE_BDEV_SIZE];
 	u16 act_mask;
 	u32 buf_size;
 	u32 buf_nr;
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c
index 7f727b34280d..f785aef65799 100644
--- a/kernel/trace/blktrace.c
+++ b/kernel/trace/blktrace.c
@@ -579,13 +579,12 @@ static int compat_blk_trace_setup(struct request_queue *q, char *name,
 		.end_lba = cbuts.end_lba,
 		.pid = cbuts.pid,
 	};
-	memcpy(&buts.name, &cbuts.name, 32);
 
 	ret = do_blk_trace_setup(q, name, dev, bdev, &buts);
 	if (ret)
 		return ret;
 
-	if (copy_to_user(arg, &buts.name, 32)) {
+	if (copy_to_user(arg, &buts.name, ARRAY_SIZE(buts.name))) {
 		blk_trace_remove(q);
 		return -EFAULT;
 	}
-- 
cgit 


From 97597dc08f58e25bc74154b7d1c387a4c0432950 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Mon, 4 Nov 2013 14:00:06 +0100
Subject: block: Do not call sector_div() with a 64-bit divisor

do_div() (called by sector_div() if CONFIG_LBDAF=y) is meant for divisions
of 64-bit number by 32-bit numbers.  Passing 64-bit divisor types caused
issues in the past on 32-bit platforms, cfr. commit
ea077b1b96e073eac5c3c5590529e964767fc5f7 ("m68k: Truncate base in
do_div()").

As queue_limits.max_discard_sectors and .discard_granularity are unsigned
int, max_discard_sectors and granularity should be unsigned int.
As bdev_discard_alignment() returns int, alignment should be int.
Now 2 calls to sector_div() can be replaced by 32-bit arithmetic:
  - The 64-bit modulo operation can become a 32-bit modulo operation,
  - The 64-bit division and multiplication can be replaced by a 32-bit
    modulo operation and a subtraction.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-lib.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/block/blk-lib.c b/block/blk-lib.c
index d6f50d572565..9b5b561cb928 100644
--- a/block/blk-lib.c
+++ b/block/blk-lib.c
@@ -43,8 +43,8 @@ int blkdev_issue_discard(struct block_device *bdev, sector_t sector,
 	DECLARE_COMPLETION_ONSTACK(wait);
 	struct request_queue *q = bdev_get_queue(bdev);
 	int type = REQ_WRITE | REQ_DISCARD;
-	sector_t max_discard_sectors;
-	sector_t granularity, alignment;
+	unsigned int max_discard_sectors, granularity;
+	int alignment;
 	struct bio_batch bb;
 	struct bio *bio;
 	int ret = 0;
@@ -58,16 +58,14 @@ int blkdev_issue_discard(struct block_device *bdev, sector_t sector,
 
 	/* Zero-sector (unknown) and one-sector granularities are the same.  */
 	granularity = max(q->limits.discard_granularity >> 9, 1U);
-	alignment = bdev_discard_alignment(bdev) >> 9;
-	alignment = sector_div(alignment, granularity);
+	alignment = (bdev_discard_alignment(bdev) >> 9) % granularity;
 
 	/*
 	 * Ensure that max_discard_sectors is of the proper
 	 * granularity, so that requests stay aligned after a split.
 	 */
 	max_discard_sectors = min(q->limits.max_discard_sectors, UINT_MAX >> 9);
-	sector_div(max_discard_sectors, granularity);
-	max_discard_sectors *= granularity;
+	max_discard_sectors -= max_discard_sectors % granularity;
 	if (unlikely(!max_discard_sectors)) {
 		/* Avoid infinite loop below. Being cautious never hurts. */
 		return -EOPNOTSUPP;
-- 
cgit 


From 8616ebb16bcef312024b9d28719f9bf5c5c3aafb Mon Sep 17 00:00:00 2001
From: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Date: Wed, 6 Nov 2013 15:55:44 +0800
Subject: block: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO

This patch fixes coccinelle error regarding usage of IS_ERR and
PTR_ERR instead of PTR_ERR_OR_ZERO.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-timeout.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/blk-timeout.c b/block/blk-timeout.c
index 655ba909cd6a..abf725c655fc 100644
--- a/block/blk-timeout.c
+++ b/block/blk-timeout.c
@@ -31,7 +31,7 @@ static int __init fail_io_timeout_debugfs(void)
 	struct dentry *dir = fault_create_debugfs_attr("fail_io_timeout",
 						NULL, &fail_io_timeout);
 
-	return IS_ERR(dir) ? PTR_ERR(dir) : 0;
+	return PTR_ERR_OR_ZERO(dir);
 }
 
 late_initcall(fail_io_timeout_debugfs);
-- 
cgit 


From c7d1ba417c7cb7297d14dd47a390ec90ce548d5c Mon Sep 17 00:00:00 2001
From: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Date: Wed, 6 Nov 2013 15:56:39 +0800
Subject: block: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO

This patch fixes coccinelle error regarding usage of IS_ERR and
PTR_ERR instead of PTR_ERR_OR_ZERO.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/ioctl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/ioctl.c b/block/ioctl.c
index a31d91d9bc5a..7d5c3b20af45 100644
--- a/block/ioctl.c
+++ b/block/ioctl.c
@@ -64,7 +64,7 @@ static int blkpg_ioctl(struct block_device *bdev, struct blkpg_ioctl_arg __user
 			part = add_partition(disk, partno, start, length,
 					     ADDPART_FLAG_NONE, NULL);
 			mutex_unlock(&bdev->bd_mutex);
-			return IS_ERR(part) ? PTR_ERR(part) : 0;
+			return PTR_ERR_OR_ZERO(part);
 		case BLKPG_DEL_PARTITION:
 			part = disk_get_part(disk, partno);
 			if (!part)
-- 
cgit 


From 370d6686683f44b6e869210eea2cf6a905b38a55 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sat, 12 Oct 2013 06:33:47 +0200
Subject: mg_disk: remove deprecated IRQF_DISABLED

This patch proposes to remove the use of the IRQF_DISABLED flag

It's a NOOP since 2.6.35 and it will be removed one day.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/mg_disk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/mg_disk.c b/drivers/block/mg_disk.c
index 77a60bedd7a3..7bc363f1ee82 100644
--- a/drivers/block/mg_disk.c
+++ b/drivers/block/mg_disk.c
@@ -936,7 +936,7 @@ static int mg_probe(struct platform_device *plat_dev)
 			goto probe_err_3b;
 		}
 		err = request_irq(host->irq, mg_irq,
-				IRQF_DISABLED | IRQF_TRIGGER_RISING,
+				IRQF_TRIGGER_RISING,
 				MG_DEV_NAME, host);
 		if (err) {
 			printk(KERN_ERR "%s:%d fail (request_irq err=%d)\n",
-- 
cgit 


From fbe363c476afe8ec992d3baf682670a4bd1b6ce6 Mon Sep 17 00:00:00 2001
From: Roger Pau Monne <roger.pau@citrix.com>
Date: Mon, 12 Aug 2013 12:53:44 +0200
Subject: xen-blkfront: revoke foreign access for grants not mapped by the
 backend
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

There's no need to keep the foreign access in a grant if it is not
persistently mapped by the backend. This allows us to free grants that
are not mapped by the backend, thus preventing blkfront from hoarding
all grants.

The main effect of this is that blkfront will only persistently map
the same grants as the backend, and it will always try to use grants
that are already mapped by the backend. Also the number of persistent
grants in blkfront is the same as in blkback (and is controlled by the
value in blkback).

Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Matt Wilson <msw@amazon.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/xen-blkfront.c | 33 +++++++++++++++++++++++++++++----
 1 file changed, 29 insertions(+), 4 deletions(-)

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 8d53ed293606..429d52640940 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -1013,13 +1013,38 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *info,
 	}
 	/* Add the persistent grant into the list of free grants */
 	for (i = 0; i < nseg; i++) {
-		list_add(&s->grants_used[i]->node, &info->persistent_gnts);
-		info->persistent_gnts_c++;
+		if (gnttab_query_foreign_access(s->grants_used[i]->gref)) {
+			/*
+			 * If the grant is still mapped by the backend (the
+			 * backend has chosen to make this grant persistent)
+			 * we add it at the head of the list, so it will be
+			 * reused first.
+			 */
+			list_add(&s->grants_used[i]->node, &info->persistent_gnts);
+			info->persistent_gnts_c++;
+		} else {
+			/*
+			 * If the grant is not mapped by the backend we end the
+			 * foreign access and add it to the tail of the list,
+			 * so it will not be picked again unless we run out of
+			 * persistent grants.
+			 */
+			gnttab_end_foreign_access(s->grants_used[i]->gref, 0, 0UL);
+			s->grants_used[i]->gref = GRANT_INVALID_REF;
+			list_add_tail(&s->grants_used[i]->node, &info->persistent_gnts);
+		}
 	}
 	if (s->req.operation == BLKIF_OP_INDIRECT) {
 		for (i = 0; i < INDIRECT_GREFS(nseg); i++) {
-			list_add(&s->indirect_grants[i]->node, &info->persistent_gnts);
-			info->persistent_gnts_c++;
+			if (gnttab_query_foreign_access(s->indirect_grants[i]->gref)) {
+				list_add(&s->indirect_grants[i]->node, &info->persistent_gnts);
+				info->persistent_gnts_c++;
+			} else {
+				gnttab_end_foreign_access(s->indirect_grants[i]->gref, 0, 0UL);
+				s->indirect_grants[i]->gref = GRANT_INVALID_REF;
+				list_add_tail(&s->indirect_grants[i]->node,
+				              &info->persistent_gnts);
+			}
 		}
 	}
 }
-- 
cgit 


From c47206e25f28232ff979994c32758c82841d81cd Mon Sep 17 00:00:00 2001
From: Roger Pau Monne <roger.pau@citrix.com>
Date: Mon, 12 Aug 2013 12:53:43 +0200
Subject: xen-blkfront: improve aproximation of required grants per request
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Improve the calculation of required grants to process a request by
using nr_phys_segments instead of always assuming a request is going
to use all posible segments.

nr_phys_segments contains the number of scatter-gather DMA addr+len
pairs, which is basically what we put at every granted page.
for_each_sg iterates over the DMA addr+len pairs and uses a grant
page for each of them.

Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/xen-blkfront.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 429d52640940..5b8a15483a4c 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -400,10 +400,13 @@ static int blkif_queue_request(struct request *req)
 	if (unlikely(info->connected != BLKIF_STATE_CONNECTED))
 		return 1;
 
-	max_grefs = info->max_indirect_segments ?
-		    info->max_indirect_segments +
-		    INDIRECT_GREFS(info->max_indirect_segments) :
-		    BLKIF_MAX_SEGMENTS_PER_REQUEST;
+	max_grefs = req->nr_phys_segments;
+	if (max_grefs > BLKIF_MAX_SEGMENTS_PER_REQUEST)
+		/*
+		 * If we are using indirect segments we need to account
+		 * for the indirect grefs used in the request.
+		 */
+		max_grefs += INDIRECT_GREFS(req->nr_phys_segments);
 
 	/* Check if we have enough grants to allocate a requests */
 	if (info->persistent_gnts_c < max_grefs) {
-- 
cgit 


From ea5ec76d76da9279d12027c1828544c5ccbe7932 Mon Sep 17 00:00:00 2001
From: Vegard Nossum <vegard.nossum@oracle.com>
Date: Thu, 5 Sep 2013 13:00:14 +0200
Subject: xen/blkback: fix reference counting

If the permission check fails, we drop a reference to the blkif without
having taken it in the first place. The bug was introduced in commit
604c499cbbcc3d5fe5fb8d53306aa0fae1990109 (xen/blkback: Check device
permissions before allowing OP_DISCARD).

Cc: stable@vger.kernel.org
Cc: Jan Beulich <JBeulich@suse.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/xen-blkback/blkback.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/block/xen-blkback/blkback.c b/drivers/block/xen-blkback/blkback.c
index bf4b9d282c04..6620b73d0490 100644
--- a/drivers/block/xen-blkback/blkback.c
+++ b/drivers/block/xen-blkback/blkback.c
@@ -887,6 +887,8 @@ static int dispatch_discard_io(struct xen_blkif *blkif,
 	unsigned long secure;
 	struct phys_req preq;
 
+	xen_blkif_get(blkif);
+
 	preq.sector_number = req->u.discard.sector_number;
 	preq.nr_sects      = req->u.discard.nr_sectors;
 
@@ -899,7 +901,6 @@ static int dispatch_discard_io(struct xen_blkif *blkif,
 	}
 	blkif->st_ds_req++;
 
-	xen_blkif_get(blkif);
 	secure = (blkif->vbd.discard_secure &&
 		 (req->u.discard.flag & BLKIF_DISCARD_SECURE)) ?
 		 BLKDEV_DISCARD_SECURE : 0;
-- 
cgit 


From ef7e7c82e02b602f29c2b87f42dcd6143a6777da Mon Sep 17 00:00:00 2001
From: Mikulas Patocka <mpatocka@redhat.com>
Date: Tue, 15 Oct 2013 14:14:38 -0600
Subject: loop: fix crash when using unassigned loop device

When the loop module is loaded, it creates 8 loop devices /dev/loop[0-7].
The devices have no request routine and thus, when they are used without
being assigned, a crash happens.

For example, these commands cause crash (assuming there are no used loop
devices):

Kernel Fault: Code=26 regs=000000007f420980 (Addr=0000000000000010)
CPU: 1 PID: 50 Comm: kworker/1:1 Not tainted 3.11.0 #1
Workqueue: ksnaphd do_metadata [dm_snapshot]
task: 000000007fcf4078 ti: 000000007f420000 task.ti: 000000007f420000
[  116.319988]
     YZrvWESTHLNXBCVMcbcbcbcbOGFRQPDI
PSW: 00001000000001001111111100001111 Not tainted
r00-03  000000ff0804ff0f 00000000408bf5d0 00000000402d8204 000000007b7ff6c0
r04-07  00000000408a95d0 000000007f420950 000000007b7ff6c0 000000007d06c930
r08-11  000000007f4205c0 0000000000000001 000000007f4205c0 000000007f4204b8
r12-15  0000000000000010 0000000000000000 0000000000000000 0000000000000000
r16-19  000000001108dd48 000000004061cd7c 000000007d859800 000000000800000f
r20-23  0000000000000000 0000000000000008 0000000000000000 0000000000000000
r24-27  00000000ffffffff 000000007b7ff6c0 000000007d859800 00000000408a95d0
r28-31  0000000000000000 000000007f420950 000000007f420980 000000007f4208e8
sr00-03  0000000000000000 0000000000000000 0000000000000000 0000000000303000
sr04-07  0000000000000000 0000000000000000 0000000000000000 0000000000000000
[  117.549988]
IASQ: 0000000000000000 0000000000000000 IAOQ: 00000000402d82fc 00000000402d8300
 IIR: 53820020    ISR: 0000000000000000  IOR: 0000000000000010
 CPU:        1   CR30: 000000007f420000 CR31: ffffffffffffffff
 ORIG_R28: 0000000000000001
 IAOQ[0]: generic_make_request+0x11c/0x1a0
 IAOQ[1]: generic_make_request+0x120/0x1a0
 RP(r2): generic_make_request+0x24/0x1a0
Backtrace:
 [<00000000402d83f0>] submit_bio+0x70/0x140
 [<0000000011087c4c>] dispatch_io+0x234/0x478 [dm_mod]
 [<0000000011087f44>] sync_io+0xb4/0x190 [dm_mod]
 [<00000000110883bc>] dm_io+0x2c4/0x310 [dm_mod]
 [<00000000110bfcd0>] do_metadata+0x28/0xb0 [dm_snapshot]
 [<00000000401591d8>] process_one_work+0x160/0x460
 [<0000000040159bc0>] worker_thread+0x300/0x478
 [<0000000040161a70>] kthread+0x118/0x128
 [<0000000040104020>] end_fault_vector+0x20/0x28
 [<0000000040177220>] task_tick_fair+0x420/0x4d0
 [<00000000401aa048>] invoke_rcu_core+0x50/0x60
 [<00000000401ad5b8>] rcu_check_callbacks+0x210/0x8d8
 [<000000004014aaa0>] update_process_times+0xa8/0xc0
 [<00000000401ab86c>] rcu_process_callbacks+0x4b4/0x598
 [<0000000040142408>] __do_softirq+0x250/0x2c0
 [<00000000401789d0>] find_busiest_group+0x3c0/0xc70
[  119.379988]
Kernel panic - not syncing: Kernel Fault
Rebooting in 1 seconds..

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/loop.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index dbdb88a4976c..c8dac7305244 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -894,13 +894,6 @@ static int loop_set_fd(struct loop_device *lo, fmode_t mode,
 
 	bio_list_init(&lo->lo_bio_list);
 
-	/*
-	 * set queue make_request_fn, and add limits based on lower level
-	 * device
-	 */
-	blk_queue_make_request(lo->lo_queue, loop_make_request);
-	lo->lo_queue->queuedata = lo;
-
 	if (!(lo_flags & LO_FLAGS_READ_ONLY) && file->f_op->fsync)
 		blk_queue_flush(lo->lo_queue, REQ_FLUSH);
 
@@ -1618,6 +1611,8 @@ static int loop_add(struct loop_device **l, int i)
 	if (!lo)
 		goto out;
 
+	lo->lo_state = Lo_unbound;
+
 	/* allocate id, if @id >= 0, we're requesting that specific id */
 	if (i >= 0) {
 		err = idr_alloc(&loop_index_idr, lo, i, i + 1, GFP_KERNEL);
@@ -1635,6 +1630,12 @@ static int loop_add(struct loop_device **l, int i)
 	if (!lo->lo_queue)
 		goto out_free_idr;
 
+	/*
+	 * set queue make_request_fn
+	 */
+	blk_queue_make_request(lo->lo_queue, loop_make_request);
+	lo->lo_queue->queuedata = lo;
+
 	disk = lo->lo_disk = alloc_disk(1 << part_shift);
 	if (!disk)
 		goto out_free_queue;
-- 
cgit 


From e5feab229f199dadee91073fbef5b507046086fd Mon Sep 17 00:00:00 2001
From: Philip J Kelleher <pjk1939@linux.vnet.ibm.com>
Date: Wed, 4 Sep 2013 13:59:02 -0500
Subject: rsxx: Handling failed pci_map_page on PowerPC and double free.

The rsxx driver was not checking the correct value during a
pci_map_page failure. Fixing this also uncovered a
double free if the bio was returned before it was
broken up into indiviadual 4k dmas, that is also
fixed here.

Signed-off-by: Philip J Kelleher <pjk1939@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/rsxx/core.c      |  3 ++-
 drivers/block/rsxx/dma.c       | 47 ++++++++++++++++++++++++------------------
 drivers/block/rsxx/rsxx_priv.h |  9 +++++++-
 3 files changed, 37 insertions(+), 22 deletions(-)

diff --git a/drivers/block/rsxx/core.c b/drivers/block/rsxx/core.c
index 6e85e21445eb..e740a650d546 100644
--- a/drivers/block/rsxx/core.c
+++ b/drivers/block/rsxx/core.c
@@ -654,7 +654,8 @@ static void rsxx_eeh_failure(struct pci_dev *dev)
 	for (i = 0; i < card->n_targets; i++) {
 		spin_lock_bh(&card->ctrl[i].queue_lock);
 		cnt = rsxx_cleanup_dma_queue(&card->ctrl[i],
-					     &card->ctrl[i].queue);
+					     &card->ctrl[i].queue,
+					     COMPLETE_DMA);
 		spin_unlock_bh(&card->ctrl[i].queue_lock);
 
 		cnt += rsxx_dma_cancel(&card->ctrl[i]);
diff --git a/drivers/block/rsxx/dma.c b/drivers/block/rsxx/dma.c
index bed32f16b084..71d1ca2a1444 100644
--- a/drivers/block/rsxx/dma.c
+++ b/drivers/block/rsxx/dma.c
@@ -221,6 +221,19 @@ static void dma_intr_coal_auto_tune(struct rsxx_cardinfo *card)
 }
 
 /*----------------- RSXX DMA Handling -------------------*/
+static void rsxx_free_dma(struct rsxx_dma_ctrl *ctrl, struct rsxx_dma *dma)
+{
+	if (!pci_dma_mapping_error(ctrl->card->dev, dma->dma_addr)) {
+		pci_unmap_page(ctrl->card->dev, dma->dma_addr,
+			       get_dma_size(dma),
+			       dma->cmd == HW_CMD_BLK_WRITE ?
+					   PCI_DMA_TODEVICE :
+					   PCI_DMA_FROMDEVICE);
+	}
+
+	kmem_cache_free(rsxx_dma_pool, dma);
+}
+
 static void rsxx_complete_dma(struct rsxx_dma_ctrl *ctrl,
 				  struct rsxx_dma *dma,
 				  unsigned int status)
@@ -232,21 +245,14 @@ static void rsxx_complete_dma(struct rsxx_dma_ctrl *ctrl,
 	if (status & DMA_CANCELLED)
 		ctrl->stats.dma_cancelled++;
 
-	if (dma->dma_addr)
-		pci_unmap_page(ctrl->card->dev, dma->dma_addr,
-			       get_dma_size(dma),
-			       dma->cmd == HW_CMD_BLK_WRITE ?
-					   PCI_DMA_TODEVICE :
-					   PCI_DMA_FROMDEVICE);
-
 	if (dma->cb)
 		dma->cb(ctrl->card, dma->cb_data, status ? 1 : 0);
 
-	kmem_cache_free(rsxx_dma_pool, dma);
+	rsxx_free_dma(ctrl, dma);
 }
 
 int rsxx_cleanup_dma_queue(struct rsxx_dma_ctrl *ctrl,
-			   struct list_head *q)
+			   struct list_head *q, unsigned int done)
 {
 	struct rsxx_dma *dma;
 	struct rsxx_dma *tmp;
@@ -254,7 +260,10 @@ int rsxx_cleanup_dma_queue(struct rsxx_dma_ctrl *ctrl,
 
 	list_for_each_entry_safe(dma, tmp, q, list) {
 		list_del(&dma->list);
-		rsxx_complete_dma(ctrl, dma, DMA_CANCELLED);
+		if (done & COMPLETE_DMA)
+			rsxx_complete_dma(ctrl, dma, DMA_CANCELLED);
+		else
+			rsxx_free_dma(ctrl, dma);
 		cnt++;
 	}
 
@@ -370,7 +379,7 @@ static void dma_engine_stalled(unsigned long data)
 
 		/* Clean up the DMA queue */
 		spin_lock(&ctrl->queue_lock);
-		cnt = rsxx_cleanup_dma_queue(ctrl, &ctrl->queue);
+		cnt = rsxx_cleanup_dma_queue(ctrl, &ctrl->queue, COMPLETE_DMA);
 		spin_unlock(&ctrl->queue_lock);
 
 		cnt += rsxx_dma_cancel(ctrl);
@@ -623,7 +632,7 @@ static int rsxx_queue_dma(struct rsxx_cardinfo *card,
 	dma->dma_addr = pci_map_page(card->dev, page, pg_off, dma_len,
 				     dir ? PCI_DMA_TODEVICE :
 				     PCI_DMA_FROMDEVICE);
-	if (!dma->dma_addr) {
+	if (pci_dma_mapping_error(card->dev, dma->dma_addr)) {
 		kmem_cache_free(rsxx_dma_pool, dma);
 		return -ENOMEM;
 	}
@@ -736,11 +745,9 @@ int rsxx_dma_queue_bio(struct rsxx_cardinfo *card,
 	return 0;
 
 bvec_err:
-	for (i = 0; i < card->n_targets; i++) {
-		spin_lock_bh(&card->ctrl[i].queue_lock);
-		rsxx_cleanup_dma_queue(&card->ctrl[i], &dma_list[i]);
-		spin_unlock_bh(&card->ctrl[i].queue_lock);
-	}
+	for (i = 0; i < card->n_targets; i++)
+		rsxx_cleanup_dma_queue(&card->ctrl[i], &dma_list[i],
+					FREE_DMA);
 
 	return st;
 }
@@ -990,7 +997,7 @@ void rsxx_dma_destroy(struct rsxx_cardinfo *card)
 
 		/* Clean up the DMA queue */
 		spin_lock_bh(&ctrl->queue_lock);
-		rsxx_cleanup_dma_queue(ctrl, &ctrl->queue);
+		rsxx_cleanup_dma_queue(ctrl, &ctrl->queue, COMPLETE_DMA);
 		spin_unlock_bh(&ctrl->queue_lock);
 
 		rsxx_dma_cancel(ctrl);
@@ -1045,7 +1052,7 @@ int rsxx_eeh_save_issued_dmas(struct rsxx_cardinfo *card)
 		card->ctrl[i].e_cnt = 0;
 
 		list_for_each_entry(dma, &card->ctrl[i].queue, list) {
-			if (dma->dma_addr)
+			if (!pci_dma_mapping_error(card->dev, dma->dma_addr))
 				pci_unmap_page(card->dev, dma->dma_addr,
 					       get_dma_size(dma),
 					       dma->cmd == HW_CMD_BLK_WRITE ?
@@ -1073,7 +1080,7 @@ int rsxx_eeh_remap_dmas(struct rsxx_cardinfo *card)
 					dma->cmd == HW_CMD_BLK_WRITE ?
 					PCI_DMA_TODEVICE :
 					PCI_DMA_FROMDEVICE);
-			if (!dma->dma_addr) {
+			if (pci_dma_mapping_error(card->dev, dma->dma_addr)) {
 				spin_unlock_bh(&card->ctrl[i].queue_lock);
 				kmem_cache_free(rsxx_dma_pool, dma);
 				return -ENOMEM;
diff --git a/drivers/block/rsxx/rsxx_priv.h b/drivers/block/rsxx/rsxx_priv.h
index 5ad5055a4104..82779058e8ec 100644
--- a/drivers/block/rsxx/rsxx_priv.h
+++ b/drivers/block/rsxx/rsxx_priv.h
@@ -345,6 +345,11 @@ enum rsxx_creg_stat {
 	CREG_STAT_TAG_MASK	= 0x0000ff00,
 };
 
+enum rsxx_dma_finish {
+	FREE_DMA	= 0x0,
+	COMPLETE_DMA	= 0x1,
+};
+
 static inline unsigned int CREG_DATA(int N)
 {
 	return CREG_DATA0 + (N << 2);
@@ -379,7 +384,9 @@ typedef void (*rsxx_dma_cb)(struct rsxx_cardinfo *card,
 int rsxx_dma_setup(struct rsxx_cardinfo *card);
 void rsxx_dma_destroy(struct rsxx_cardinfo *card);
 int rsxx_dma_init(void);
-int rsxx_cleanup_dma_queue(struct rsxx_dma_ctrl *ctrl, struct list_head *q);
+int rsxx_cleanup_dma_queue(struct rsxx_dma_ctrl *ctrl,
+				struct list_head *q,
+				unsigned int done);
 int rsxx_dma_cancel(struct rsxx_dma_ctrl *ctrl);
 void rsxx_dma_cleanup(void);
 void rsxx_dma_queue_reset(struct rsxx_cardinfo *card);
-- 
cgit 


From 1b21f5b2ad6047995b19b15024353a9fa64810f1 Mon Sep 17 00:00:00 2001
From: Philip J Kelleher <pjk1939@linux.vnet.ibm.com>
Date: Wed, 4 Sep 2013 13:59:35 -0500
Subject: rsxx: Moving pci_map_page to prevent overflow.

The pci_map_page function has been moved into our
issued workqueue to prevent an us running out of
mappable addresses on non-HWWD PCIe x8 slots. The
maximum amount that can possible be mapped at one
time now is: 255 dmas X 4 dma channels X 4096 Bytes.

Signed-off-by: Philip J Kelleher <pjk1939@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/rsxx/core.c |  5 ----
 drivers/block/rsxx/dma.c  | 70 +++++++++++++++++++----------------------------
 2 files changed, 28 insertions(+), 47 deletions(-)

diff --git a/drivers/block/rsxx/core.c b/drivers/block/rsxx/core.c
index e740a650d546..a8de2eec6ff3 100644
--- a/drivers/block/rsxx/core.c
+++ b/drivers/block/rsxx/core.c
@@ -749,10 +749,6 @@ static pci_ers_result_t rsxx_slot_reset(struct pci_dev *dev)
 
 	card->eeh_state = 0;
 
-	st = rsxx_eeh_remap_dmas(card);
-	if (st)
-		goto failed_remap_dmas;
-
 	spin_lock_irqsave(&card->irq_lock, flags);
 	if (card->n_targets & RSXX_MAX_TARGETS)
 		rsxx_enable_ier_and_isr(card, CR_INTR_ALL_G);
@@ -779,7 +775,6 @@ static pci_ers_result_t rsxx_slot_reset(struct pci_dev *dev)
 	return PCI_ERS_RESULT_RECOVERED;
 
 failed_hw_buffers_init:
-failed_remap_dmas:
 	for (i = 0; i < card->n_targets; i++) {
 		if (card->ctrl[i].status.buf)
 			pci_free_consistent(card->dev,
diff --git a/drivers/block/rsxx/dma.c b/drivers/block/rsxx/dma.c
index 71d1ca2a1444..34fd1018c8e5 100644
--- a/drivers/block/rsxx/dma.c
+++ b/drivers/block/rsxx/dma.c
@@ -397,6 +397,7 @@ static void rsxx_issue_dmas(struct rsxx_dma_ctrl *ctrl)
 	int tag;
 	int cmds_pending = 0;
 	struct hw_cmd *hw_cmd_buf;
+	int dir;
 
 	hw_cmd_buf = ctrl->cmd.buf;
 
@@ -433,6 +434,28 @@ static void rsxx_issue_dmas(struct rsxx_dma_ctrl *ctrl)
 			continue;
 		}
 
+		if (dma->cmd == HW_CMD_BLK_WRITE)
+			dir = PCI_DMA_TODEVICE;
+		else
+			dir = PCI_DMA_FROMDEVICE;
+
+		/*
+		 * The function pci_map_page is placed here because we can
+		 * only, by design, issue up to 255 commands to the hardware
+		 * at one time per DMA channel. So the maximum amount of mapped
+		 * memory would be 255 * 4 channels * 4096 Bytes which is less
+		 * than 2GB, the limit of a x8 Non-HWWD PCIe slot. This way the
+		 * pci_map_page function should never fail because of a
+		 * lack of mappable memory.
+		 */
+		dma->dma_addr = pci_map_page(ctrl->card->dev, dma->page,
+				     dma->pg_off, dma->sub_page.cnt << 9, dir);
+		if (pci_dma_mapping_error(ctrl->card->dev, dma->dma_addr)) {
+			push_tracker(ctrl->trackers, tag);
+			rsxx_complete_dma(ctrl, dma, DMA_CANCELLED);
+			continue;
+		}
+
 		set_tracker_dma(ctrl->trackers, tag, dma);
 		hw_cmd_buf[ctrl->cmd.idx].command  = dma->cmd;
 		hw_cmd_buf[ctrl->cmd.idx].tag      = tag;
@@ -629,14 +652,6 @@ static int rsxx_queue_dma(struct rsxx_cardinfo *card,
 	if (!dma)
 		return -ENOMEM;
 
-	dma->dma_addr = pci_map_page(card->dev, page, pg_off, dma_len,
-				     dir ? PCI_DMA_TODEVICE :
-				     PCI_DMA_FROMDEVICE);
-	if (pci_dma_mapping_error(card->dev, dma->dma_addr)) {
-		kmem_cache_free(rsxx_dma_pool, dma);
-		return -ENOMEM;
-	}
-
 	dma->cmd          = dir ? HW_CMD_BLK_WRITE : HW_CMD_BLK_READ;
 	dma->laddr        = laddr;
 	dma->sub_page.off = (dma_off >> 9);
@@ -1039,6 +1054,11 @@ int rsxx_eeh_save_issued_dmas(struct rsxx_cardinfo *card)
 			else
 				card->ctrl[i].stats.reads_issued--;
 
+			pci_unmap_page(card->dev, dma->dma_addr,
+				       get_dma_size(dma),
+				       dma->cmd == HW_CMD_BLK_WRITE ?
+				       PCI_DMA_TODEVICE :
+				       PCI_DMA_FROMDEVICE);
 			list_add_tail(&dma->list, &issued_dmas[i]);
 			push_tracker(card->ctrl[i].trackers, j);
 			cnt++;
@@ -1050,15 +1070,6 @@ int rsxx_eeh_save_issued_dmas(struct rsxx_cardinfo *card)
 		atomic_sub(cnt, &card->ctrl[i].stats.hw_q_depth);
 		card->ctrl[i].stats.sw_q_depth += cnt;
 		card->ctrl[i].e_cnt = 0;
-
-		list_for_each_entry(dma, &card->ctrl[i].queue, list) {
-			if (!pci_dma_mapping_error(card->dev, dma->dma_addr))
-				pci_unmap_page(card->dev, dma->dma_addr,
-					       get_dma_size(dma),
-					       dma->cmd == HW_CMD_BLK_WRITE ?
-					       PCI_DMA_TODEVICE :
-					       PCI_DMA_FROMDEVICE);
-		}
 		spin_unlock_bh(&card->ctrl[i].queue_lock);
 	}
 
@@ -1067,31 +1078,6 @@ int rsxx_eeh_save_issued_dmas(struct rsxx_cardinfo *card)
 	return 0;
 }
 
-int rsxx_eeh_remap_dmas(struct rsxx_cardinfo *card)
-{
-	struct rsxx_dma *dma;
-	int i;
-
-	for (i = 0; i < card->n_targets; i++) {
-		spin_lock_bh(&card->ctrl[i].queue_lock);
-		list_for_each_entry(dma, &card->ctrl[i].queue, list) {
-			dma->dma_addr = pci_map_page(card->dev, dma->page,
-					dma->pg_off, get_dma_size(dma),
-					dma->cmd == HW_CMD_BLK_WRITE ?
-					PCI_DMA_TODEVICE :
-					PCI_DMA_FROMDEVICE);
-			if (pci_dma_mapping_error(card->dev, dma->dma_addr)) {
-				spin_unlock_bh(&card->ctrl[i].queue_lock);
-				kmem_cache_free(rsxx_dma_pool, dma);
-				return -ENOMEM;
-			}
-		}
-		spin_unlock_bh(&card->ctrl[i].queue_lock);
-	}
-
-	return 0;
-}
-
 int rsxx_dma_init(void)
 {
 	rsxx_dma_pool = KMEM_CACHE(rsxx_dma, SLAB_HWCACHE_ALIGN);
-- 
cgit 


From 8f8b899563f28ef26e381a6eb90d12dead77389f Mon Sep 17 00:00:00 2001
From: Asai Thambi S P <asamymuthupa@micron.com>
Date: Wed, 11 Sep 2013 13:14:42 -0600
Subject: mtip32xx: Add SRSI support

This patch add support for SRSI(Surprise Removal Surprise Insertion).

Approach:
---------
Surprise Removal:
-----------------
On surprise removal of the device, gendisk, request queue, device index, sysfs
entries, etc are retained as long as device is in use - mounted filesystem,
device opened by an application, etc. The service thread breaks out of the main
while loop, waits for pci remove to exit, and then waits for device to become
free. When there no holders of the device, service thread cleans up the block
and device related stuff and returns.

Surprise Insertion:
-------------------
No change, this scenario follows the normal pci probe() function flow.

Signed-off-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/mtip32xx/mtip32xx.c | 453 +++++++++++++++++++++++---------------
 drivers/block/mtip32xx/mtip32xx.h |  18 +-
 2 files changed, 289 insertions(+), 182 deletions(-)

diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 952dbfe22126..76f3bc4f0c21 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -126,64 +126,30 @@ struct mtip_compat_ide_task_request_s {
 static bool mtip_check_surprise_removal(struct pci_dev *pdev)
 {
 	u16 vendor_id = 0;
+	struct driver_data *dd = pci_get_drvdata(pdev);
+
+	if (dd->sr)
+		return true;
 
        /* Read the vendorID from the configuration space */
 	pci_read_config_word(pdev, 0x00, &vendor_id);
-	if (vendor_id == 0xFFFF)
+	if (vendor_id == 0xFFFF) {
+		dd->sr = true;
+		if (dd->queue)
+			set_bit(QUEUE_FLAG_DEAD, &dd->queue->queue_flags);
+		else
+			dev_warn(&dd->pdev->dev,
+				"%s: dd->queue is NULL\n", __func__);
+		if (dd->port) {
+			set_bit(MTIP_PF_SR_CLEANUP_BIT, &dd->port->flags);
+			wake_up_interruptible(&dd->port->svc_wait);
+		} else
+			dev_warn(&dd->pdev->dev,
+				"%s: dd->port is NULL\n", __func__);
 		return true; /* device removed */
-
-	return false; /* device present */
-}
-
-/*
- * This function is called for clean the pending command in the
- * command slot during the surprise removal of device and return
- * error to the upper layer.
- *
- * @dd Pointer to the DRIVER_DATA structure.
- *
- * return value
- *	None
- */
-static void mtip_command_cleanup(struct driver_data *dd)
-{
-	int group = 0, commandslot = 0, commandindex = 0;
-	struct mtip_cmd *command;
-	struct mtip_port *port = dd->port;
-	static int in_progress;
-
-	if (in_progress)
-		return;
-
-	in_progress = 1;
-
-	for (group = 0; group < 4; group++) {
-		for (commandslot = 0; commandslot < 32; commandslot++) {
-			if (!(port->allocated[group] & (1 << commandslot)))
-				continue;
-
-			commandindex = group << 5 | commandslot;
-			command = &port->commands[commandindex];
-
-			if (atomic_read(&command->active)
-			    && (command->async_callback)) {
-				command->async_callback(command->async_data,
-					-ENODEV);
-				command->async_callback = NULL;
-				command->async_data = NULL;
-			}
-
-			dma_unmap_sg(&port->dd->pdev->dev,
-				command->sg,
-				command->scatter_ents,
-				command->direction);
-		}
 	}
 
-	up(&port->cmd_slot);
-
-	set_bit(MTIP_DDF_CLEANUP_BIT, &dd->dd_flag);
-	in_progress = 0;
+	return false; /* device present */
 }
 
 /*
@@ -222,10 +188,7 @@ static int get_slot(struct mtip_port *port)
 	}
 	dev_warn(&port->dd->pdev->dev, "Failed to get a tag.\n");
 
-	if (mtip_check_surprise_removal(port->dd->pdev)) {
-		/* Device not present, clean outstanding commands */
-		mtip_command_cleanup(port->dd);
-	}
+	mtip_check_surprise_removal(port->dd->pdev);
 	return -1;
 }
 
@@ -245,6 +208,107 @@ static inline void release_slot(struct mtip_port *port, int tag)
 	smp_mb__after_clear_bit();
 }
 
+/*
+ * IO completion function.
+ *
+ * This completion function is called by the driver ISR when a
+ * command that was issued by the kernel completes. It first calls the
+ * asynchronous completion function which normally calls back into the block
+ * layer passing the asynchronous callback data, then unmaps the
+ * scatter list associated with the completed command, and finally
+ * clears the allocated bit associated with the completed command.
+ *
+ * @port   Pointer to the port data structure.
+ * @tag    Tag of the command.
+ * @data   Pointer to driver_data.
+ * @status Completion status.
+ *
+ * return value
+ *	None
+ */
+static void mtip_async_complete(struct mtip_port *port,
+				int tag,
+				void *data,
+				int status)
+{
+	struct mtip_cmd *command;
+	struct driver_data *dd = data;
+	int cb_status = status ? -EIO : 0;
+
+	if (unlikely(!dd) || unlikely(!port))
+		return;
+
+	command = &port->commands[tag];
+
+	if (unlikely(status == PORT_IRQ_TF_ERR)) {
+		dev_warn(&port->dd->pdev->dev,
+			"Command tag %d failed due to TFE\n", tag);
+	}
+
+	/* Upper layer callback */
+	if (likely(command->async_callback))
+		command->async_callback(command->async_data, cb_status);
+
+	command->async_callback = NULL;
+	command->comp_func = NULL;
+
+	/* Unmap the DMA scatter list entries */
+	dma_unmap_sg(&dd->pdev->dev,
+		command->sg,
+		command->scatter_ents,
+		command->direction);
+
+	/* Clear the allocated and active bits for the command */
+	atomic_set(&port->commands[tag].active, 0);
+	release_slot(port, tag);
+
+	up(&port->cmd_slot);
+}
+
+/*
+ * This function is called for clean the pending command in the
+ * command slot during the surprise removal of device and return
+ * error to the upper layer.
+ *
+ * @dd Pointer to the DRIVER_DATA structure.
+ *
+ * return value
+ *	None
+ */
+static void mtip_command_cleanup(struct driver_data *dd)
+{
+	int tag = 0;
+	struct mtip_cmd *cmd;
+	struct mtip_port *port = dd->port;
+	unsigned int num_cmd_slots = dd->slot_groups * 32;
+
+	if (!test_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag))
+		return;
+
+	if (!port)
+		return;
+
+	cmd = &port->commands[MTIP_TAG_INTERNAL];
+	if (atomic_read(&cmd->active))
+		if (readl(port->cmd_issue[MTIP_TAG_INTERNAL]) &
+					(1 << MTIP_TAG_INTERNAL))
+			if (cmd->comp_func)
+				cmd->comp_func(port, MTIP_TAG_INTERNAL,
+					 cmd->comp_data, -ENODEV);
+
+	while (1) {
+		tag = find_next_bit(port->allocated, num_cmd_slots, tag);
+		if (tag >= num_cmd_slots)
+			break;
+
+		cmd = &port->commands[tag];
+		if (atomic_read(&cmd->active))
+			mtip_async_complete(port, tag, dd, -ENODEV);
+	}
+
+	set_bit(MTIP_DDF_CLEANUP_BIT, &dd->dd_flag);
+}
+
 /*
  * Reset the HBA (without sleeping)
  *
@@ -584,6 +648,9 @@ static void mtip_timeout_function(unsigned long int data)
 	if (unlikely(!port))
 		return;
 
+	if (unlikely(port->dd->sr))
+		return;
+
 	if (test_bit(MTIP_DDF_RESUME_BIT, &port->dd->dd_flag)) {
 		mod_timer(&port->cmd_timer,
 			jiffies + msecs_to_jiffies(30000));
@@ -674,66 +741,6 @@ static void mtip_timeout_function(unsigned long int data)
 		jiffies + msecs_to_jiffies(MTIP_TIMEOUT_CHECK_PERIOD));
 }
 
-/*
- * IO completion function.
- *
- * This completion function is called by the driver ISR when a
- * command that was issued by the kernel completes. It first calls the
- * asynchronous completion function which normally calls back into the block
- * layer passing the asynchronous callback data, then unmaps the
- * scatter list associated with the completed command, and finally
- * clears the allocated bit associated with the completed command.
- *
- * @port   Pointer to the port data structure.
- * @tag    Tag of the command.
- * @data   Pointer to driver_data.
- * @status Completion status.
- *
- * return value
- *	None
- */
-static void mtip_async_complete(struct mtip_port *port,
-				int tag,
-				void *data,
-				int status)
-{
-	struct mtip_cmd *command;
-	struct driver_data *dd = data;
-	int cb_status = status ? -EIO : 0;
-
-	if (unlikely(!dd) || unlikely(!port))
-		return;
-
-	command = &port->commands[tag];
-
-	if (unlikely(status == PORT_IRQ_TF_ERR)) {
-		dev_warn(&port->dd->pdev->dev,
-			"Command tag %d failed due to TFE\n", tag);
-	}
-
-	/* Upper layer callback */
-	if (likely(command->async_callback))
-		command->async_callback(command->async_data, cb_status);
-
-	command->async_callback = NULL;
-	command->comp_func = NULL;
-
-	/* Unmap the DMA scatter list entries */
-	dma_unmap_sg(&dd->pdev->dev,
-		command->sg,
-		command->scatter_ents,
-		command->direction);
-
-	/* Clear the allocated and active bits for the command */
-	atomic_set(&port->commands[tag].active, 0);
-	release_slot(port, tag);
-
-	if (unlikely(command->unaligned))
-		up(&port->cmd_slot_unal);
-	else
-		up(&port->cmd_slot);
-}
-
 /*
  * Internal command completion callback function.
  *
@@ -854,7 +861,6 @@ static void mtip_handle_tfe(struct driver_data *dd)
 					"Missing completion func for tag %d",
 					tag);
 				if (mtip_check_surprise_removal(dd->pdev)) {
-					mtip_command_cleanup(dd);
 					/* don't proceed further */
 					return;
 				}
@@ -1018,14 +1024,12 @@ static inline void mtip_workq_sdbfx(struct mtip_port *port, int group,
 					command->comp_data,
 					0);
 			} else {
-				dev_warn(&dd->pdev->dev,
-					"Null completion "
-					"for tag %d",
+				dev_dbg(&dd->pdev->dev,
+					"Null completion for tag %d",
 					tag);
 
 				if (mtip_check_surprise_removal(
 					dd->pdev)) {
-					mtip_command_cleanup(dd);
 					return;
 				}
 			}
@@ -1145,7 +1149,6 @@ static inline irqreturn_t mtip_handle_irq(struct driver_data *data)
 
 		if (unlikely(port_stat & PORT_IRQ_ERR)) {
 			if (unlikely(mtip_check_surprise_removal(dd->pdev))) {
-				mtip_command_cleanup(dd);
 				/* don't proceed further */
 				return IRQ_HANDLED;
 			}
@@ -3006,6 +3009,46 @@ static void mtip_hw_debugfs_exit(struct driver_data *dd)
 		debugfs_remove_recursive(dd->dfs_node);
 }
 
+static int mtip_free_orphan(struct driver_data *dd)
+{
+	struct kobject *kobj;
+
+	if (dd->bdev) {
+		if (dd->bdev->bd_holders >= 1)
+			return -2;
+
+		bdput(dd->bdev);
+		dd->bdev = NULL;
+	}
+
+	mtip_hw_debugfs_exit(dd);
+
+	spin_lock(&rssd_index_lock);
+	ida_remove(&rssd_index_ida, dd->index);
+	spin_unlock(&rssd_index_lock);
+
+	if (!test_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag) &&
+			test_bit(MTIP_DDF_REBUILD_FAILED_BIT, &dd->dd_flag)) {
+		put_disk(dd->disk);
+	} else {
+		if (dd->disk) {
+			kobj = kobject_get(&disk_to_dev(dd->disk)->kobj);
+			if (kobj) {
+				mtip_hw_sysfs_exit(dd, kobj);
+				kobject_put(kobj);
+			}
+			del_gendisk(dd->disk);
+			dd->disk = NULL;
+		}
+		if (dd->queue) {
+			dd->queue->queuedata = NULL;
+			blk_cleanup_queue(dd->queue);
+			dd->queue = NULL;
+		}
+	}
+	kfree(dd);
+	return 0;
+}
 
 /*
  * Perform any init/resume time hardware setup
@@ -3154,6 +3197,7 @@ static int mtip_service_thread(void *data)
 	unsigned long slot, slot_start, slot_wrap;
 	unsigned int num_cmd_slots = dd->slot_groups * 32;
 	struct mtip_port *port = dd->port;
+	int ret;
 
 	while (1) {
 		/*
@@ -3164,13 +3208,18 @@ static int mtip_service_thread(void *data)
 			!(port->flags & MTIP_PF_PAUSE_IO));
 
 		if (kthread_should_stop())
+			goto st_out;
+
+		set_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags);
+
+		/* If I am an orphan, start self cleanup */
+		if (test_bit(MTIP_PF_SR_CLEANUP_BIT, &port->flags))
 			break;
 
 		if (unlikely(test_bit(MTIP_DDF_REMOVE_PENDING_BIT,
 				&dd->dd_flag)))
-			break;
+			goto st_out;
 
-		set_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags);
 		if (test_bit(MTIP_PF_ISSUE_CMDS_BIT, &port->flags)) {
 			slot = 1;
 			/* used to restrict the loop to one iteration */
@@ -3201,7 +3250,7 @@ static int mtip_service_thread(void *data)
 
 			clear_bit(MTIP_PF_ISSUE_CMDS_BIT, &port->flags);
 		} else if (test_bit(MTIP_PF_REBUILD_BIT, &port->flags)) {
-			if (!mtip_ftl_rebuild_poll(dd))
+			if (mtip_ftl_rebuild_poll(dd) < 0)
 				set_bit(MTIP_DDF_REBUILD_FAILED_BIT,
 							&dd->dd_flag);
 			clear_bit(MTIP_PF_REBUILD_BIT, &port->flags);
@@ -3209,8 +3258,30 @@ static int mtip_service_thread(void *data)
 		clear_bit(MTIP_PF_SVC_THD_ACTIVE_BIT, &port->flags);
 
 		if (test_bit(MTIP_PF_SVC_THD_STOP_BIT, &port->flags))
+			goto st_out;
+	}
+
+	/* wait for pci remove to exit */
+	while (1) {
+		if (test_bit(MTIP_DDF_REMOVE_DONE_BIT, &dd->dd_flag))
 			break;
+		msleep_interruptible(1000);
+		if (kthread_should_stop())
+			goto st_out;
 	}
+
+	while (1) {
+		ret = mtip_free_orphan(dd);
+		if (!ret) {
+			/* NOTE: All data structures are invalid, do not
+			 * access any here */
+			return 0;
+		}
+		msleep_interruptible(1000);
+		if (kthread_should_stop())
+			goto st_out;
+	}
+st_out:
 	return 0;
 }
 
@@ -3437,13 +3508,13 @@ static int mtip_hw_init(struct driver_data *dd)
 		rv = -EFAULT;
 		goto out3;
 	}
+	mtip_dump_identify(dd->port);
 
 	if (*(dd->port->identify + MTIP_FTL_REBUILD_OFFSET) ==
 		MTIP_FTL_REBUILD_MAGIC) {
 		set_bit(MTIP_PF_REBUILD_BIT, &dd->port->flags);
 		return MTIP_FTL_REBUILD_MAGIC;
 	}
-	mtip_dump_identify(dd->port);
 
 	/* check write protect, over temp and rebuild statuses */
 	rv = mtip_read_log_page(dd->port, ATA_LOG_SATA_NCQ,
@@ -3467,8 +3538,8 @@ static int mtip_hw_init(struct driver_data *dd)
 		}
 		if (buf[288] == 0xBF) {
 			dev_info(&dd->pdev->dev,
-				"Drive indicates rebuild has failed.\n");
-			/* TODO */
+				"Drive is in security locked state.\n");
+			set_bit(MTIP_DDF_SEC_LOCK_BIT, &dd->dd_flag);
 		}
 	}
 
@@ -3523,9 +3594,8 @@ static int mtip_hw_exit(struct driver_data *dd)
 	 * Send standby immediate (E0h) to the drive so that it
 	 * saves its state.
 	 */
-	if (!test_bit(MTIP_DDF_CLEANUP_BIT, &dd->dd_flag)) {
-
-		if (!test_bit(MTIP_PF_REBUILD_BIT, &dd->port->flags))
+	if (!dd->sr) {
+		if (!test_bit(MTIP_DDF_REBUILD_FAILED_BIT, &dd->dd_flag))
 			if (mtip_standby_immediate(dd->port))
 				dev_warn(&dd->pdev->dev,
 					"STANDBY IMMEDIATE failed\n");
@@ -3551,6 +3621,7 @@ static int mtip_hw_exit(struct driver_data *dd)
 			dd->port->command_list_dma);
 	/* Free the memory allocated for the for structure. */
 	kfree(dd->port);
+	dd->port = NULL;
 
 	return 0;
 }
@@ -3572,7 +3643,8 @@ static int mtip_hw_shutdown(struct driver_data *dd)
 	 * Send standby immediate (E0h) to the drive so that it
 	 * saves its state.
 	 */
-	mtip_standby_immediate(dd->port);
+	if (!dd->sr && dd->port)
+		mtip_standby_immediate(dd->port);
 
 	return 0;
 }
@@ -3887,6 +3959,10 @@ static void mtip_make_request(struct request_queue *queue, struct bio *bio)
 			bio_endio(bio, -ENODATA);
 			return;
 		}
+		if (test_bit(MTIP_DDF_REBUILD_FAILED_BIT, &dd->dd_flag)) {
+			bio_endio(bio, -ENXIO);
+			return;
+		}
 	}
 
 	if (unlikely(bio->bi_rw & REQ_DISCARD)) {
@@ -4010,6 +4086,8 @@ static int mtip_block_initialize(struct driver_data *dd)
 	dd->disk->private_data	= dd;
 	dd->index		= index;
 
+	mtip_hw_debugfs_init(dd);
+
 	/*
 	 * if rebuild pending, start the service thread, and delay the block
 	 * queue creation and add_disk()
@@ -4068,6 +4146,7 @@ skip_create_disk:
 	/* Enable the block device and add it to /dev */
 	add_disk(dd->disk);
 
+	dd->bdev = bdget_disk(dd->disk, 0);
 	/*
 	 * Now that the disk is active, initialize any sysfs attributes
 	 * managed by the protocol layer.
@@ -4077,7 +4156,6 @@ skip_create_disk:
 		mtip_hw_sysfs_init(dd, kobj);
 		kobject_put(kobj);
 	}
-	mtip_hw_debugfs_init(dd);
 
 	if (dd->mtip_svc_handler) {
 		set_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag);
@@ -4103,7 +4181,8 @@ start_service_thread:
 	return rv;
 
 kthread_run_error:
-	mtip_hw_debugfs_exit(dd);
+	bdput(dd->bdev);
+	dd->bdev = NULL;
 
 	/* Delete our gendisk. This also removes the device from /dev */
 	del_gendisk(dd->disk);
@@ -4112,6 +4191,7 @@ read_capacity_error:
 	blk_cleanup_queue(dd->queue);
 
 block_queue_alloc_init_error:
+	mtip_hw_debugfs_exit(dd);
 disk_index_error:
 	spin_lock(&rssd_index_lock);
 	ida_remove(&rssd_index_ida, index);
@@ -4141,40 +4221,48 @@ static int mtip_block_remove(struct driver_data *dd)
 {
 	struct kobject *kobj;
 
-	if (dd->mtip_svc_handler) {
-		set_bit(MTIP_PF_SVC_THD_STOP_BIT, &dd->port->flags);
-		wake_up_interruptible(&dd->port->svc_wait);
-		kthread_stop(dd->mtip_svc_handler);
-	}
+	if (!dd->sr) {
+		mtip_hw_debugfs_exit(dd);
 
-	/* Clean up the sysfs attributes, if created */
-	if (test_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag)) {
-		kobj = kobject_get(&disk_to_dev(dd->disk)->kobj);
-		if (kobj) {
-			mtip_hw_sysfs_exit(dd, kobj);
-			kobject_put(kobj);
+		if (dd->mtip_svc_handler) {
+			set_bit(MTIP_PF_SVC_THD_STOP_BIT, &dd->port->flags);
+			wake_up_interruptible(&dd->port->svc_wait);
+			kthread_stop(dd->mtip_svc_handler);
 		}
-	}
-	mtip_hw_debugfs_exit(dd);
 
-	/*
-	 * Delete our gendisk structure. This also removes the device
-	 * from /dev
-	 */
-	if (dd->disk) {
-		if (dd->disk->queue)
-			del_gendisk(dd->disk);
-		else
-			put_disk(dd->disk);
-	}
-
-	spin_lock(&rssd_index_lock);
-	ida_remove(&rssd_index_ida, dd->index);
-	spin_unlock(&rssd_index_lock);
+		/* Clean up the sysfs attributes, if created */
+		if (test_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag)) {
+			kobj = kobject_get(&disk_to_dev(dd->disk)->kobj);
+			if (kobj) {
+				mtip_hw_sysfs_exit(dd, kobj);
+				kobject_put(kobj);
+			}
+		}
+		/*
+		 * Delete our gendisk structure. This also removes the device
+		 * from /dev
+		 */
+		if (dd->bdev) {
+			bdput(dd->bdev);
+			dd->bdev = NULL;
+		}
+		if (dd->disk) {
+			if (dd->disk->queue) {
+				del_gendisk(dd->disk);
+				blk_cleanup_queue(dd->queue);
+				dd->queue = NULL;
+			} else
+				put_disk(dd->disk);
+		}
+		dd->disk  = NULL;
 
-	blk_cleanup_queue(dd->queue);
-	dd->disk  = NULL;
-	dd->queue = NULL;
+		spin_lock(&rssd_index_lock);
+		ida_remove(&rssd_index_ida, dd->index);
+		spin_unlock(&rssd_index_lock);
+	} else {
+		dev_info(&dd->pdev->dev, "device %s surprise removal\n",
+						dd->disk->disk_name);
+	}
 
 	/* De-initialize the protocol layer. */
 	mtip_hw_exit(dd);
@@ -4490,8 +4578,7 @@ done:
 static void mtip_pci_remove(struct pci_dev *pdev)
 {
 	struct driver_data *dd = pci_get_drvdata(pdev);
-	int counter = 0;
-	unsigned long flags;
+	unsigned long flags, to;
 
 	set_bit(MTIP_DDF_REMOVE_PENDING_BIT, &dd->dd_flag);
 
@@ -4500,17 +4587,22 @@ static void mtip_pci_remove(struct pci_dev *pdev)
 	list_add(&dd->remove_list, &removing_list);
 	spin_unlock_irqrestore(&dev_lock, flags);
 
-	if (mtip_check_surprise_removal(pdev)) {
-		while (!test_bit(MTIP_DDF_CLEANUP_BIT, &dd->dd_flag)) {
-			counter++;
-			msleep(20);
-			if (counter == 10) {
-				/* Cleanup the outstanding commands */
-				mtip_command_cleanup(dd);
-				break;
-			}
-		}
+	mtip_check_surprise_removal(pdev);
+	synchronize_irq(dd->pdev->irq);
+
+	/* Spin until workers are done */
+	to = jiffies + msecs_to_jiffies(4000);
+	do {
+		msleep(20);
+	} while (atomic_read(&dd->irq_workers_active) != 0 &&
+		time_before(jiffies, to));
+
+	if (atomic_read(&dd->irq_workers_active) != 0) {
+		dev_warn(&dd->pdev->dev,
+			"Completion workers still active!\n");
 	}
+	/* Cleanup the outstanding commands */
+	mtip_command_cleanup(dd);
 
 	/* Clean up the block layer. */
 	mtip_block_remove(dd);
@@ -4529,8 +4621,15 @@ static void mtip_pci_remove(struct pci_dev *pdev)
 	list_del_init(&dd->remove_list);
 	spin_unlock_irqrestore(&dev_lock, flags);
 
-	kfree(dd);
+	if (!dd->sr)
+		kfree(dd);
+	else
+		set_bit(MTIP_DDF_REMOVE_DONE_BIT, &dd->dd_flag);
+
 	pcim_iounmap_regions(pdev, 1 << MTIP_ABAR);
+	pci_set_drvdata(pdev, NULL);
+	pci_dev_put(pdev);
+
 }
 
 /*
diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h
index 3bb8a295fbe4..9be7a1582ad3 100644
--- a/drivers/block/mtip32xx/mtip32xx.h
+++ b/drivers/block/mtip32xx/mtip32xx.h
@@ -140,6 +140,7 @@ enum {
 	MTIP_PF_SVC_THD_ACTIVE_BIT  = 4,
 	MTIP_PF_ISSUE_CMDS_BIT      = 5,
 	MTIP_PF_REBUILD_BIT         = 6,
+	MTIP_PF_SR_CLEANUP_BIT      = 7,
 	MTIP_PF_SVC_THD_STOP_BIT    = 8,
 
 	/* below are bit numbers in 'dd_flag' defined in driver_data */
@@ -147,15 +148,18 @@ enum {
 	MTIP_DDF_REMOVE_PENDING_BIT = 1,
 	MTIP_DDF_OVER_TEMP_BIT      = 2,
 	MTIP_DDF_WRITE_PROTECT_BIT  = 3,
-	MTIP_DDF_STOP_IO      = ((1 << MTIP_DDF_REMOVE_PENDING_BIT) |
-				(1 << MTIP_DDF_SEC_LOCK_BIT) |
-				(1 << MTIP_DDF_OVER_TEMP_BIT) |
-				(1 << MTIP_DDF_WRITE_PROTECT_BIT)),
-
+	MTIP_DDF_REMOVE_DONE_BIT    = 4,
 	MTIP_DDF_CLEANUP_BIT        = 5,
 	MTIP_DDF_RESUME_BIT         = 6,
 	MTIP_DDF_INIT_DONE_BIT      = 7,
 	MTIP_DDF_REBUILD_FAILED_BIT = 8,
+
+	MTIP_DDF_STOP_IO      = ((1 << MTIP_DDF_REMOVE_PENDING_BIT) |
+				(1 << MTIP_DDF_SEC_LOCK_BIT) |
+				(1 << MTIP_DDF_OVER_TEMP_BIT) |
+				(1 << MTIP_DDF_WRITE_PROTECT_BIT) |
+				(1 << MTIP_DDF_REBUILD_FAILED_BIT)),
+
 };
 
 struct smart_attr {
@@ -499,6 +503,8 @@ struct driver_data {
 
 	bool trim_supp; /* flag indicating trim support */
 
+	bool sr;
+
 	int numa_node; /* NUMA support */
 
 	char workq_name[32];
@@ -511,6 +517,8 @@ struct driver_data {
 
 	int isr_binding;
 
+	struct block_device *bdev;
+
 	int unal_qdepth; /* qdepth of unaligned IO queue */
 
 	struct list_head online_list; /* linkage for online list */
-- 
cgit 


From c8afd0dcbd14e2352258f2e2d359b36d0edd459f Mon Sep 17 00:00:00 2001
From: David Milburn <dmilburn@redhat.com>
Date: Thu, 23 May 2013 16:23:45 -0500
Subject: mtip32xx: dynamically allocate buffer in debugfs functions
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Dynamically allocate buf to prevent warnings:

drivers/block/mtip32xx/mtip32xx.c: In function ‘mtip_hw_read_device_status’:
drivers/block/mtip32xx/mtip32xx.c:2823: warning: the frame size of 1056 bytes is larger than 1024 bytes
drivers/block/mtip32xx/mtip32xx.c: In function ‘mtip_hw_read_registers’:
drivers/block/mtip32xx/mtip32xx.c:2894: warning: the frame size of 1056 bytes is larger than 1024 bytes
drivers/block/mtip32xx/mtip32xx.c: In function ‘mtip_hw_read_flags’:
drivers/block/mtip32xx/mtip32xx.c:2917: warning: the frame size of 1056 bytes is larger than 1024 bytes

Signed-off-by: David Milburn <dmilburn@redhat.com>
Acked-by: Asai Thambi S P <asamymuthupa@micron.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/mtip32xx/mtip32xx.c | 47 ++++++++++++++++++++++++++++++---------
 1 file changed, 37 insertions(+), 10 deletions(-)

diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 76f3bc4f0c21..050c71267f14 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -2809,34 +2809,51 @@ static ssize_t show_device_status(struct device_driver *drv, char *buf)
 static ssize_t mtip_hw_read_device_status(struct file *f, char __user *ubuf,
 						size_t len, loff_t *offset)
 {
+	struct driver_data *dd =  (struct driver_data *)f->private_data;
 	int size = *offset;
-	char buf[MTIP_DFS_MAX_BUF_SIZE];
+	char *buf;
+	int rv = 0;
 
 	if (!len || *offset)
 		return 0;
 
+	buf = kzalloc(MTIP_DFS_MAX_BUF_SIZE, GFP_KERNEL);
+	if (!buf) {
+		dev_err(&dd->pdev->dev,
+			"Memory allocation: status buffer\n");
+		return -ENOMEM;
+	}
+
 	size += show_device_status(NULL, buf);
 
 	*offset = size <= len ? size : len;
 	size = copy_to_user(ubuf, buf, *offset);
 	if (size)
-		return -EFAULT;
+		rv = -EFAULT;
 
-	return *offset;
+	kfree(buf);
+	return rv ? rv : *offset;
 }
 
 static ssize_t mtip_hw_read_registers(struct file *f, char __user *ubuf,
 				  size_t len, loff_t *offset)
 {
 	struct driver_data *dd =  (struct driver_data *)f->private_data;
-	char buf[MTIP_DFS_MAX_BUF_SIZE];
+	char *buf;
 	u32 group_allocated;
 	int size = *offset;
-	int n;
+	int n, rv = 0;
 
 	if (!len || size)
 		return 0;
 
+	buf = kzalloc(MTIP_DFS_MAX_BUF_SIZE, GFP_KERNEL);
+	if (!buf) {
+		dev_err(&dd->pdev->dev,
+			"Memory allocation: register buffer\n");
+		return -ENOMEM;
+	}
+
 	size += sprintf(&buf[size], "H/ S ACTive      : [ 0x");
 
 	for (n = dd->slot_groups-1; n >= 0; n--)
@@ -2891,21 +2908,30 @@ static ssize_t mtip_hw_read_registers(struct file *f, char __user *ubuf,
 	*offset = size <= len ? size : len;
 	size = copy_to_user(ubuf, buf, *offset);
 	if (size)
-		return -EFAULT;
+		rv = -EFAULT;
 
-	return *offset;
+	kfree(buf);
+	return rv ? rv : *offset;
 }
 
 static ssize_t mtip_hw_read_flags(struct file *f, char __user *ubuf,
 				  size_t len, loff_t *offset)
 {
 	struct driver_data *dd =  (struct driver_data *)f->private_data;
-	char buf[MTIP_DFS_MAX_BUF_SIZE];
+	char *buf;
 	int size = *offset;
+	int rv = 0;
 
 	if (!len || size)
 		return 0;
 
+	buf = kzalloc(MTIP_DFS_MAX_BUF_SIZE, GFP_KERNEL);
+	if (!buf) {
+		dev_err(&dd->pdev->dev,
+			"Memory allocation: flag buffer\n");
+		return -ENOMEM;
+	}
+
 	size += sprintf(&buf[size], "Flag-port : [ %08lX ]\n",
 							dd->port->flags);
 	size += sprintf(&buf[size], "Flag-dd   : [ %08lX ]\n",
@@ -2914,9 +2940,10 @@ static ssize_t mtip_hw_read_flags(struct file *f, char __user *ubuf,
 	*offset = size <= len ? size : len;
 	size = copy_to_user(ubuf, buf, *offset);
 	if (size)
-		return -EFAULT;
+		rv = -EFAULT;
 
-	return *offset;
+	kfree(buf);
+	return rv ? rv : *offset;
 }
 
 static const struct file_operations mtip_device_status_fops = {
-- 
cgit 


From 0317cd6de852a70e0374e7eb40a013072274386f Mon Sep 17 00:00:00 2001
From: Philip J Kelleher <pjk1939@linux.vnet.ibm.com>
Date: Fri, 27 Sep 2013 20:42:50 -0600
Subject: rsxx: Kernel Panic caused by mapping Discards

This fixes a kernel panic injected by commit id
8d26750143341831bc312f61c5ed141eeb75b8d0 where discards
are getting mapped through the pci_map_page function call.

The driver will now start verifying that a dma is not a
discard before issuing a the pci_map_page function call.

Also, we are updating the driver version.

Signed-off-by: Philip J Kelleher <pjk1939@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/rsxx/dma.c       | 43 ++++++++++++++++++++++--------------------
 drivers/block/rsxx/rsxx_priv.h |  2 +-
 2 files changed, 24 insertions(+), 21 deletions(-)

diff --git a/drivers/block/rsxx/dma.c b/drivers/block/rsxx/dma.c
index 34fd1018c8e5..4103601ae675 100644
--- a/drivers/block/rsxx/dma.c
+++ b/drivers/block/rsxx/dma.c
@@ -434,26 +434,29 @@ static void rsxx_issue_dmas(struct rsxx_dma_ctrl *ctrl)
 			continue;
 		}
 
-		if (dma->cmd == HW_CMD_BLK_WRITE)
-			dir = PCI_DMA_TODEVICE;
-		else
-			dir = PCI_DMA_FROMDEVICE;
-
-		/*
-		 * The function pci_map_page is placed here because we can
-		 * only, by design, issue up to 255 commands to the hardware
-		 * at one time per DMA channel. So the maximum amount of mapped
-		 * memory would be 255 * 4 channels * 4096 Bytes which is less
-		 * than 2GB, the limit of a x8 Non-HWWD PCIe slot. This way the
-		 * pci_map_page function should never fail because of a
-		 * lack of mappable memory.
-		 */
-		dma->dma_addr = pci_map_page(ctrl->card->dev, dma->page,
-				     dma->pg_off, dma->sub_page.cnt << 9, dir);
-		if (pci_dma_mapping_error(ctrl->card->dev, dma->dma_addr)) {
-			push_tracker(ctrl->trackers, tag);
-			rsxx_complete_dma(ctrl, dma, DMA_CANCELLED);
-			continue;
+		if (dma->cmd != HW_CMD_BLK_DISCARD) {
+			if (dma->cmd == HW_CMD_BLK_WRITE)
+				dir = PCI_DMA_TODEVICE;
+			else
+				dir = PCI_DMA_FROMDEVICE;
+
+			/*
+			 * The function pci_map_page is placed here because we
+			 * can only, by design, issue up to 255 commands to the
+			 * hardware at one time per DMA channel. So the maximum
+			 * amount of mapped memory would be 255 * 4 channels *
+			 * 4096 Bytes which is less than 2GB, the limit of a x8
+			 * Non-HWWD PCIe slot. This way the pci_map_page
+			 * function should never fail because of a lack of
+			 * mappable memory.
+			 */
+			dma->dma_addr = pci_map_page(ctrl->card->dev, dma->page,
+					dma->pg_off, dma->sub_page.cnt << 9, dir);
+			if (pci_dma_mapping_error(ctrl->card->dev, dma->dma_addr)) {
+				push_tracker(ctrl->trackers, tag);
+				rsxx_complete_dma(ctrl, dma, DMA_CANCELLED);
+				continue;
+			}
 		}
 
 		set_tracker_dma(ctrl->trackers, tag, dma);
diff --git a/drivers/block/rsxx/rsxx_priv.h b/drivers/block/rsxx/rsxx_priv.h
index 82779058e8ec..913740e53d31 100644
--- a/drivers/block/rsxx/rsxx_priv.h
+++ b/drivers/block/rsxx/rsxx_priv.h
@@ -52,7 +52,7 @@ struct proc_cmd;
 #define RS70_PCI_REV_SUPPORTED	4
 
 #define DRIVER_NAME "rsxx"
-#define DRIVER_VERSION "4.0"
+#define DRIVER_VERSION "4.0.1.2498"
 
 /* Block size is 4096 */
 #define RSXX_HW_BLK_SHIFT		12
-- 
cgit 


From e67f86b31ae5be8a88bec27b5ecb18dc2ffc9c56 Mon Sep 17 00:00:00 2001
From: Akhil Bhansali <abhansali@stec-inc.com>
Date: Tue, 15 Oct 2013 14:19:07 -0600
Subject: Add support for sTec's pci-e flash card Kronos

Signed-off-by: Akhil Bhansali <abhansali@stec-inc.com>
Signed-off-by: Ramprasad Chinthekindi <rchinthekindi@stec-inc.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>

Folded patch, contributions to clean up this driver from:

Jens Axboe
Dan Carpenter
Andrew Morton

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/Kconfig     |   10 +
 drivers/block/Makefile    |    2 +
 drivers/block/skd_main.c  | 5817 +++++++++++++++++++++++++++++++++++++++++++++
 drivers/block/skd_s1120.h |  354 +++
 4 files changed, 6183 insertions(+)
 create mode 100644 drivers/block/skd_main.c
 create mode 100644 drivers/block/skd_s1120.h

diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index e07a5fd58ad7..555aed0b50dd 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -316,6 +316,16 @@ config BLK_DEV_NVME
 	  To compile this driver as a module, choose M here: the
 	  module will be called nvme.
 
+config BLK_DEV_SKD
+	tristate "STEC S1120 Block Driver"
+	depends on PCI
+	depends on 64BIT
+	---help---
+	Saying Y or M here will enable support for the
+	STEC, Inc. S1120 PCIe SSD.
+
+	Use device /dev/skd$N amd /dev/skd$Np$M.
+
 config BLK_DEV_OSD
 	tristate "OSD object-as-blkdev support"
 	depends on SCSI_OSD_ULD
diff --git a/drivers/block/Makefile b/drivers/block/Makefile
index ca07399a8d99..f33b36694289 100644
--- a/drivers/block/Makefile
+++ b/drivers/block/Makefile
@@ -23,6 +23,7 @@ obj-$(CONFIG_CDROM_PKTCDVD)	+= pktcdvd.o
 obj-$(CONFIG_MG_DISK)		+= mg_disk.o
 obj-$(CONFIG_SUNVDC)		+= sunvdc.o
 obj-$(CONFIG_BLK_DEV_NVME)	+= nvme.o
+obj-$(CONFIG_BLK_DEV_SKD)	+= skd.o
 obj-$(CONFIG_BLK_DEV_OSD)	+= osdblk.o
 
 obj-$(CONFIG_BLK_DEV_UMEM)	+= umem.o
@@ -43,4 +44,5 @@ obj-$(CONFIG_BLK_DEV_PCIESSD_MTIP32XX)	+= mtip32xx/
 obj-$(CONFIG_BLK_DEV_RSXX) += rsxx/
 
 nvme-y		:= nvme-core.o nvme-scsi.o
+skd-y		:= skd_main.o
 swim_mod-y	:= swim.o swim_asm.o
diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
new file mode 100644
index 000000000000..3110f68ecedd
--- /dev/null
+++ b/drivers/block/skd_main.c
@@ -0,0 +1,5817 @@
+/* Copyright 2012 STEC, Inc.
+ *
+ * This file is licensed under the terms of the 3-clause
+ * BSD License (http://opensource.org/licenses/BSD-3-Clause)
+ * or the GNU GPL-2.0 (http://www.gnu.org/licenses/gpl-2.0.html),
+ * at your option. Both licenses are also available in the LICENSE file
+ * distributed with this project. This file may not be copied, modified,
+ * or distributed except in accordance with those terms.
+ * Gordoni Waidhofer <gwaidhofer@stec-inc.com>
+ * Initial Driver Design!
+ * Thomas Swann <tswann@stec-inc.com>
+ * Interrupt handling.
+ * Ramprasad Chinthekindi <rchinthekindi@stec-inc.com>
+ * biomode implementation.
+ * Akhil Bhansali <abhansali@stec-inc.com>
+ * Added support for DISCARD / FLUSH and FUA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/blkdev.h>
+#include <linux/sched.h>
+#include <linux/interrupt.h>
+#include <linux/compiler.h>
+#include <linux/workqueue.h>
+#include <linux/bitops.h>
+#include <linux/delay.h>
+#include <linux/time.h>
+#include <linux/hdreg.h>
+#include <linux/dma-mapping.h>
+#include <linux/completion.h>
+#include <linux/scatterlist.h>
+#include <linux/version.h>
+#include <linux/err.h>
+#include <linux/scatterlist.h>
+#include <linux/aer.h>
+#include <linux/ctype.h>
+#include <linux/wait.h>
+#include <linux/uio.h>
+#include <scsi/scsi.h>
+#include <scsi/scsi_host.h>
+#include <scsi/scsi_tcq.h>
+#include <scsi/scsi_cmnd.h>
+#include <scsi/sg.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <asm-generic/unaligned.h>
+
+#include "skd_s1120.h"
+
+static int skd_dbg_level;
+static int skd_isr_comp_limit = 4;
+
+enum {
+	STEC_LINK_2_5GTS = 0,
+	STEC_LINK_5GTS = 1,
+	STEC_LINK_8GTS = 2,
+	STEC_LINK_UNKNOWN = 0xFF
+};
+
+enum {
+	SKD_FLUSH_INITIALIZER,
+	SKD_FLUSH_ZERO_SIZE_FIRST,
+	SKD_FLUSH_DATA_SECOND,
+};
+
+#define DPRINTK(skdev, fmt, args ...) \
+	do { \
+		if (unlikely((skdev)->dbg_level > 0)) {	\
+			pr_err("%s:%s:%d " fmt, (skdev)->name,	\
+			       __func__, __LINE__, ## args); \
+		} \
+	} while (0)
+
+#define SKD_ASSERT(expr) \
+	do { \
+		if (unlikely(!(expr))) { \
+			pr_err("Assertion failed! %s,%s,%s,line=%d\n",	\
+			       # expr, __FILE__, __func__, __LINE__); \
+		} \
+	} while (0)
+
+#define VPRINTK(skdev, fmt, args ...) \
+	do { \
+		if (unlikely((skdev)->dbg_level > 1)) {	\
+			pr_err("%s:%s:%d " fmt, (skdev)->name,	\
+			       __func__, __LINE__, ## args); \
+		} \
+	} while (0)
+
+
+#define DRV_NAME "skd"
+#define DRV_VERSION "2.2.1"
+#define DRV_BUILD_ID "0260"
+#define PFX DRV_NAME ": "
+#define DRV_BIN_VERSION 0x100
+#define DRV_VER_COMPL   "2.2.1." DRV_BUILD_ID
+
+MODULE_AUTHOR("bug-reports: support@stec-inc.com");
+MODULE_LICENSE("Dual BSD/GPL");
+
+MODULE_DESCRIPTION("STEC s1120 PCIe SSD block/BIO driver (b" DRV_BUILD_ID ")");
+MODULE_VERSION(DRV_VERSION "-" DRV_BUILD_ID);
+
+#define PCI_VENDOR_ID_STEC      0x1B39
+#define PCI_DEVICE_ID_S1120     0x0001
+
+#define SKD_FUA_NV		(1 << 1)
+#define SKD_MINORS_PER_DEVICE   16
+
+#define SKD_MAX_QUEUE_DEPTH     200u
+
+#define SKD_PAUSE_TIMEOUT       (5 * 1000)
+
+#define SKD_N_FITMSG_BYTES      (512u)
+
+#define SKD_N_SPECIAL_CONTEXT   32u
+#define SKD_N_SPECIAL_FITMSG_BYTES      (128u)
+
+/* SG elements are 32 bytes, so we can make this 4096 and still be under the
+ * 128KB limit.  That allows 4096*4K = 16M xfer size
+ */
+#define SKD_N_SG_PER_REQ_DEFAULT 256u
+#define SKD_N_SG_PER_SPECIAL    256u
+
+#define SKD_N_COMPLETION_ENTRY  256u
+#define SKD_N_READ_CAP_BYTES    (8u)
+
+#define SKD_N_INTERNAL_BYTES    (512u)
+
+/* 5 bits of uniqifier, 0xF800 */
+#define SKD_ID_INCR             (0x400)
+#define SKD_ID_TABLE_MASK       (3u << 8u)
+#define  SKD_ID_RW_REQUEST      (0u << 8u)
+#define  SKD_ID_INTERNAL        (1u << 8u)
+#define  SKD_ID_SPECIAL_REQUEST (2u << 8u)
+#define  SKD_ID_FIT_MSG         (3u << 8u)
+#define SKD_ID_SLOT_MASK        0x00FFu
+#define SKD_ID_SLOT_AND_TABLE_MASK 0x03FFu
+
+#define SKD_N_TIMEOUT_SLOT      4u
+#define SKD_TIMEOUT_SLOT_MASK   3u
+
+#define SKD_N_MAX_SECTORS 2048u
+
+#define SKD_MAX_RETRIES 2u
+
+#define SKD_TIMER_SECONDS(seconds) (seconds)
+#define SKD_TIMER_MINUTES(minutes) ((minutes) * (60))
+
+#define INQ_STD_NBYTES 36
+#define SKD_DISCARD_CDB_LENGTH	24
+
+enum skd_drvr_state {
+	SKD_DRVR_STATE_LOAD,
+	SKD_DRVR_STATE_IDLE,
+	SKD_DRVR_STATE_BUSY,
+	SKD_DRVR_STATE_STARTING,
+	SKD_DRVR_STATE_ONLINE,
+	SKD_DRVR_STATE_PAUSING,
+	SKD_DRVR_STATE_PAUSED,
+	SKD_DRVR_STATE_DRAINING_TIMEOUT,
+	SKD_DRVR_STATE_RESTARTING,
+	SKD_DRVR_STATE_RESUMING,
+	SKD_DRVR_STATE_STOPPING,
+	SKD_DRVR_STATE_FAULT,
+	SKD_DRVR_STATE_DISAPPEARED,
+	SKD_DRVR_STATE_PROTOCOL_MISMATCH,
+	SKD_DRVR_STATE_BUSY_ERASE,
+	SKD_DRVR_STATE_BUSY_SANITIZE,
+	SKD_DRVR_STATE_BUSY_IMMINENT,
+	SKD_DRVR_STATE_WAIT_BOOT,
+	SKD_DRVR_STATE_SYNCING,
+};
+
+#define SKD_WAIT_BOOT_TIMO      SKD_TIMER_SECONDS(90u)
+#define SKD_STARTING_TIMO       SKD_TIMER_SECONDS(8u)
+#define SKD_RESTARTING_TIMO     SKD_TIMER_MINUTES(4u)
+#define SKD_DRAINING_TIMO       SKD_TIMER_SECONDS(6u)
+#define SKD_BUSY_TIMO           SKD_TIMER_MINUTES(20u)
+#define SKD_STARTED_BUSY_TIMO   SKD_TIMER_SECONDS(60u)
+#define SKD_START_WAIT_SECONDS  90u
+
+enum skd_req_state {
+	SKD_REQ_STATE_IDLE,
+	SKD_REQ_STATE_SETUP,
+	SKD_REQ_STATE_BUSY,
+	SKD_REQ_STATE_COMPLETED,
+	SKD_REQ_STATE_TIMEOUT,
+	SKD_REQ_STATE_ABORTED,
+};
+
+enum skd_fit_msg_state {
+	SKD_MSG_STATE_IDLE,
+	SKD_MSG_STATE_BUSY,
+};
+
+enum skd_check_status_action {
+	SKD_CHECK_STATUS_REPORT_GOOD,
+	SKD_CHECK_STATUS_REPORT_SMART_ALERT,
+	SKD_CHECK_STATUS_REQUEUE_REQUEST,
+	SKD_CHECK_STATUS_REPORT_ERROR,
+	SKD_CHECK_STATUS_BUSY_IMMINENT,
+};
+
+struct skd_fitmsg_context {
+	enum skd_fit_msg_state state;
+
+	struct skd_fitmsg_context *next;
+
+	u32 id;
+	u16 outstanding;
+
+	u32 length;
+	u32 offset;
+
+	u8 *msg_buf;
+	dma_addr_t mb_dma_address;
+};
+
+struct skd_request_context {
+	enum skd_req_state state;
+
+	struct skd_request_context *next;
+
+	u16 id;
+	u32 fitmsg_id;
+
+	struct request *req;
+	struct bio *bio;
+	unsigned long start_time;
+	u8 flush_cmd;
+	u8 discard_page;
+
+	u32 timeout_stamp;
+	u8 sg_data_dir;
+	struct scatterlist *sg;
+	u32 n_sg;
+	u32 sg_byte_count;
+
+	struct fit_sg_descriptor *sksg_list;
+	dma_addr_t sksg_dma_address;
+
+	struct fit_completion_entry_v1 completion;
+
+	struct fit_comp_error_info err_info;
+
+};
+#define SKD_DATA_DIR_HOST_TO_CARD       1
+#define SKD_DATA_DIR_CARD_TO_HOST       2
+#define SKD_DATA_DIR_NONE		3	/* especially for DISCARD requests. */
+
+struct skd_special_context {
+	struct skd_request_context req;
+
+	u8 orphaned;
+
+	void *data_buf;
+	dma_addr_t db_dma_address;
+
+	u8 *msg_buf;
+	dma_addr_t mb_dma_address;
+};
+
+struct skd_sg_io {
+	fmode_t mode;
+	void __user *argp;
+
+	struct sg_io_hdr sg;
+
+	u8 cdb[16];
+
+	u32 dxfer_len;
+	u32 iovcnt;
+	struct sg_iovec *iov;
+	struct sg_iovec no_iov_iov;
+
+	struct skd_special_context *skspcl;
+};
+
+typedef enum skd_irq_type {
+	SKD_IRQ_LEGACY,
+	SKD_IRQ_MSI,
+	SKD_IRQ_MSIX
+} skd_irq_type_t;
+
+#define SKD_MAX_BARS                    2
+
+struct skd_device {
+	volatile void __iomem *mem_map[SKD_MAX_BARS];
+	resource_size_t mem_phys[SKD_MAX_BARS];
+	u32 mem_size[SKD_MAX_BARS];
+
+	skd_irq_type_t irq_type;
+	u32 msix_count;
+	struct skd_msix_entry *msix_entries;
+
+	struct pci_dev *pdev;
+	int pcie_error_reporting_is_enabled;
+
+	spinlock_t lock;
+	struct gendisk *disk;
+	struct request_queue *queue;
+	struct device *class_dev;
+	int gendisk_on;
+	int sync_done;
+
+	atomic_t device_count;
+	u32 devno;
+	u32 major;
+	char name[32];
+	char isr_name[30];
+
+	enum skd_drvr_state state;
+	u32 drive_state;
+
+	u32 in_flight;
+	u32 cur_max_queue_depth;
+	u32 queue_low_water_mark;
+	u32 dev_max_queue_depth;
+
+	u32 num_fitmsg_context;
+	u32 num_req_context;
+
+	u32 timeout_slot[SKD_N_TIMEOUT_SLOT];
+	u32 timeout_stamp;
+	struct skd_fitmsg_context *skmsg_free_list;
+	struct skd_fitmsg_context *skmsg_table;
+
+	struct skd_request_context *skreq_free_list;
+	struct skd_request_context *skreq_table;
+
+	struct skd_special_context *skspcl_free_list;
+	struct skd_special_context *skspcl_table;
+
+	struct skd_special_context internal_skspcl;
+	u32 read_cap_blocksize;
+	u32 read_cap_last_lba;
+	int read_cap_is_valid;
+	int inquiry_is_valid;
+	u8 inq_serial_num[13];  /*12 chars plus null term */
+	u8 id_str[80];          /* holds a composite name (pci + sernum) */
+
+	u8 skcomp_cycle;
+	u32 skcomp_ix;
+	struct fit_completion_entry_v1 *skcomp_table;
+	struct fit_comp_error_info *skerr_table;
+	dma_addr_t cq_dma_address;
+
+	wait_queue_head_t waitq;
+
+	struct timer_list timer;
+	u32 timer_countdown;
+	u32 timer_substate;
+
+	int n_special;
+	int sgs_per_request;
+	u32 last_mtd;
+
+	u32 proto_ver;
+
+	int dbg_level;
+	u32 connect_time_stamp;
+	int connect_retries;
+#define SKD_MAX_CONNECT_RETRIES 16
+	u32 drive_jiffies;
+
+	u32 timo_slot;
+
+
+	struct work_struct completion_worker;
+
+	struct bio_list bio_queue;
+	int queue_stopped;
+
+	struct list_head flush_list;
+};
+
+#define SKD_FLUSH_JOB   "skd-flush-jobs"
+struct kmem_cache *skd_flush_slab;
+
+/*
+ * These commands hold "nonzero size FLUSH bios",
+ * which are enqueud in skdev->flush_list during
+ * completion of "zero size FLUSH commands".
+ * It will be active in biomode.
+ */
+struct skd_flush_cmd {
+	void *cmd;
+	struct list_head flist;
+};
+
+#define SKD_WRITEL(DEV, VAL, OFF) skd_reg_write32(DEV, VAL, OFF)
+#define SKD_READL(DEV, OFF)      skd_reg_read32(DEV, OFF)
+#define SKD_WRITEQ(DEV, VAL, OFF) skd_reg_write64(DEV, VAL, OFF)
+
+static inline u32 skd_reg_read32(struct skd_device *skdev, u32 offset)
+{
+	u32 val;
+
+	if (likely(skdev->dbg_level < 2))
+		return readl(skdev->mem_map[1] + offset);
+	else {
+		barrier();
+		val = readl(skdev->mem_map[1] + offset);
+		barrier();
+		VPRINTK(skdev, "offset %x = %x\n", offset, val);
+		return val;
+	}
+
+}
+
+static inline void skd_reg_write32(struct skd_device *skdev, u32 val,
+				   u32 offset)
+{
+	if (likely(skdev->dbg_level < 2)) {
+		writel(val, skdev->mem_map[1] + offset);
+		barrier();
+		readl(skdev->mem_map[1] + offset);
+		barrier();
+	} else {
+		barrier();
+		writel(val, skdev->mem_map[1] + offset);
+		barrier();
+		readl(skdev->mem_map[1] + offset);
+		barrier();
+		VPRINTK(skdev, "offset %x = %x\n", offset, val);
+	}
+}
+
+static inline void skd_reg_write64(struct skd_device *skdev, u64 val,
+				   u32 offset)
+{
+	if (likely(skdev->dbg_level < 2)) {
+		writeq(val, skdev->mem_map[1] + offset);
+		barrier();
+		readq(skdev->mem_map[1] + offset);
+		barrier();
+	} else {
+		barrier();
+		writeq(val, skdev->mem_map[1] + offset);
+		barrier();
+		readq(skdev->mem_map[1] + offset);
+		barrier();
+		VPRINTK(skdev, "offset %x = %016llx\n", offset, val);
+	}
+}
+
+
+#define SKD_IRQ_DEFAULT SKD_IRQ_MSI
+static int skd_isr_type = SKD_IRQ_DEFAULT;
+
+module_param(skd_isr_type, int, 0444);
+MODULE_PARM_DESC(skd_isr_type, "Interrupt type capability."
+		 " (0==legacy, 1==MSI, 2==MSI-X, default==1)");
+
+#define SKD_MAX_REQ_PER_MSG_DEFAULT 1
+static int skd_max_req_per_msg = SKD_MAX_REQ_PER_MSG_DEFAULT;
+
+module_param(skd_max_req_per_msg, int, 0444);
+MODULE_PARM_DESC(skd_max_req_per_msg,
+		 "Maximum SCSI requests packed in a single message."
+		 " (1-14, default==1)");
+
+#define SKD_MAX_QUEUE_DEPTH_DEFAULT 64
+#define SKD_MAX_QUEUE_DEPTH_DEFAULT_STR "64"
+static int skd_max_queue_depth = SKD_MAX_QUEUE_DEPTH_DEFAULT;
+
+module_param(skd_max_queue_depth, int, 0444);
+MODULE_PARM_DESC(skd_max_queue_depth,
+		 "Maximum SCSI requests issued to s1120."
+		 " (1-200, default==" SKD_MAX_QUEUE_DEPTH_DEFAULT_STR ")");
+
+static int skd_sgs_per_request = SKD_N_SG_PER_REQ_DEFAULT;
+module_param(skd_sgs_per_request, int, 0444);
+MODULE_PARM_DESC(skd_sgs_per_request,
+		 "Maximum SG elements per block request."
+		 " (1-4096, default==256)");
+
+static int skd_max_pass_thru = SKD_N_SPECIAL_CONTEXT;
+module_param(skd_max_pass_thru, int, 0444);
+MODULE_PARM_DESC(skd_max_pass_thru,
+		 "Maximum SCSI pass-thru at a time." " (1-50, default==32)");
+
+module_param(skd_dbg_level, int, 0444);
+MODULE_PARM_DESC(skd_dbg_level, "s1120 debug level (0,1,2)");
+
+module_param(skd_isr_comp_limit, int, 0444);
+MODULE_PARM_DESC(skd_isr_comp_limit, "s1120 isr comp limit (0=none) default=4");
+
+static int skd_bio;
+module_param(skd_bio, int, 0444);
+MODULE_PARM_DESC(skd_bio,
+		 "Register as a bio device instead of block (0, 1) default=0");
+
+/* Major device number dynamically assigned. */
+static u32 skd_major;
+
+static struct skd_device *skd_construct(struct pci_dev *pdev);
+static void skd_destruct(struct skd_device *skdev);
+static const struct block_device_operations skd_blockdev_ops;
+static void skd_send_fitmsg(struct skd_device *skdev,
+			    struct skd_fitmsg_context *skmsg);
+static void skd_send_special_fitmsg(struct skd_device *skdev,
+				    struct skd_special_context *skspcl);
+static void skd_request_fn(struct request_queue *rq);
+static void skd_end_request(struct skd_device *skdev,
+			    struct skd_request_context *skreq, int error);
+static int skd_preop_sg_list(struct skd_device *skdev,
+			     struct skd_request_context *skreq);
+static void skd_postop_sg_list(struct skd_device *skdev,
+			       struct skd_request_context *skreq);
+
+static void skd_restart_device(struct skd_device *skdev);
+static int skd_quiesce_dev(struct skd_device *skdev);
+static int skd_unquiesce_dev(struct skd_device *skdev);
+static void skd_release_special(struct skd_device *skdev,
+				struct skd_special_context *skspcl);
+static void skd_disable_interrupts(struct skd_device *skdev);
+static void skd_isr_fwstate(struct skd_device *skdev);
+static void skd_recover_requests(struct skd_device *skdev, int requeue);
+static void skd_soft_reset(struct skd_device *skdev);
+
+static const char *skd_name(struct skd_device *skdev);
+const char *skd_drive_state_to_str(int state);
+const char *skd_skdev_state_to_str(enum skd_drvr_state state);
+static void skd_log_skdev(struct skd_device *skdev, const char *event);
+static void skd_log_skmsg(struct skd_device *skdev,
+			  struct skd_fitmsg_context *skmsg, const char *event);
+static void skd_log_skreq(struct skd_device *skdev,
+			  struct skd_request_context *skreq, const char *event);
+
+/* FLUSH FUA flag handling. */
+static int skd_flush_cmd_enqueue(struct skd_device *, void *);
+static void *skd_flush_cmd_dequeue(struct skd_device *);
+
+
+/*
+ *****************************************************************************
+ * READ/WRITE REQUESTS
+ *****************************************************************************
+ */
+static void skd_stop_queue(struct skd_device *skdev)
+{
+	if (!skd_bio)
+		blk_stop_queue(skdev->queue);
+	else
+		skdev->queue_stopped = 1;
+}
+
+static void skd_unstop_queue(struct skd_device *skdev)
+{
+	if (!skd_bio)
+		queue_flag_clear(QUEUE_FLAG_STOPPED, skdev->queue);
+	else
+		skdev->queue_stopped = 0;
+}
+
+static void skd_start_queue(struct skd_device *skdev)
+{
+	if (!skd_bio) {
+		blk_start_queue(skdev->queue);
+	} else {
+		pr_err("(%s): Starting queue\n", skd_name(skdev));
+		skdev->queue_stopped = 0;
+		skd_request_fn(skdev->queue);
+	}
+}
+
+static int skd_queue_stopped(struct skd_device *skdev)
+{
+	if (!skd_bio)
+		return blk_queue_stopped(skdev->queue);
+	else
+		return skdev->queue_stopped;
+}
+
+static void skd_fail_all_pending_blk(struct skd_device *skdev)
+{
+	struct request_queue *q = skdev->queue;
+	struct request *req;
+
+	for (;; ) {
+		req = blk_peek_request(q);
+		if (req == NULL)
+			break;
+		blk_start_request(req);
+		__blk_end_request_all(req, -EIO);
+	}
+}
+
+static void skd_fail_all_pending_bio(struct skd_device *skdev)
+{
+	struct bio *bio;
+	int error = -EIO;
+
+	for (;; ) {
+		bio = bio_list_pop(&skdev->bio_queue);
+
+		if (bio == NULL)
+			break;
+
+		bio_endio(bio, error);
+	}
+}
+
+static void skd_fail_all_pending(struct skd_device *skdev)
+{
+	if (!skd_bio)
+		skd_fail_all_pending_blk(skdev);
+	else
+		skd_fail_all_pending_bio(skdev);
+}
+
+static void skd_make_request(struct request_queue *q, struct bio *bio)
+{
+	struct skd_device *skdev = q->queuedata;
+	unsigned long flags;
+
+	spin_lock_irqsave(&skdev->lock, flags);
+
+	bio_list_add(&skdev->bio_queue, bio);
+	skd_request_fn(skdev->queue);
+
+	spin_unlock_irqrestore(&skdev->lock, flags);
+}
+
+static void
+skd_prep_rw_cdb(struct skd_scsi_request *scsi_req,
+		int data_dir, unsigned lba,
+		unsigned count)
+{
+	if (data_dir == READ)
+		scsi_req->cdb[0] = 0x28;
+	else
+		scsi_req->cdb[0] = 0x2a;
+
+	scsi_req->cdb[1] = 0;
+	scsi_req->cdb[2] = (lba & 0xff000000) >> 24;
+	scsi_req->cdb[3] = (lba & 0xff0000) >> 16;
+	scsi_req->cdb[4] = (lba & 0xff00) >> 8;
+	scsi_req->cdb[5] = (lba & 0xff);
+	scsi_req->cdb[6] = 0;
+	scsi_req->cdb[7] = (count & 0xff00) >> 8;
+	scsi_req->cdb[8] = count & 0xff;
+	scsi_req->cdb[9] = 0;
+}
+
+static void
+skd_prep_zerosize_flush_cdb(struct skd_scsi_request *scsi_req,
+			struct skd_request_context *skreq)
+{
+	skreq->flush_cmd = 1;
+
+	scsi_req->cdb[0] = 0x35;
+	scsi_req->cdb[1] = 0;
+	scsi_req->cdb[2] = 0;
+	scsi_req->cdb[3] = 0;
+	scsi_req->cdb[4] = 0;
+	scsi_req->cdb[5] = 0;
+	scsi_req->cdb[6] = 0;
+	scsi_req->cdb[7] = 0;
+	scsi_req->cdb[8] = 0;
+	scsi_req->cdb[9] = 0;
+}
+
+static void
+skd_prep_discard_cdb(struct skd_scsi_request *scsi_req,
+			struct skd_request_context *skreq,
+			struct page *page,
+			u32 lba, u32 count)
+{
+	char *buf;
+	unsigned long len;
+	struct request *req;
+
+	buf = page_address(page);
+	len = SKD_DISCARD_CDB_LENGTH;
+
+	scsi_req->cdb[0] = UNMAP;
+	scsi_req->cdb[8] = len;
+
+	put_unaligned_be16(6 + 16, &buf[0]);
+	put_unaligned_be16(16, &buf[2]);
+	put_unaligned_be64(lba, &buf[8]);
+	put_unaligned_be32(count, &buf[16]);
+
+	if (!skd_bio) {
+		req = skreq->req;
+		blk_add_request_payload(req, page, len);
+		req->buffer = buf;
+	} else {
+		skreq->bio->bi_io_vec->bv_page = page;
+		skreq->bio->bi_io_vec->bv_offset = 0;
+		skreq->bio->bi_io_vec->bv_len = len;
+
+		skreq->bio->bi_vcnt = 1;
+		skreq->bio->bi_phys_segments = 1;
+	}
+}
+
+static void skd_request_fn_not_online(struct request_queue *q);
+
+static void skd_request_fn(struct request_queue *q)
+{
+	struct skd_device *skdev = q->queuedata;
+	struct skd_fitmsg_context *skmsg = NULL;
+	struct fit_msg_hdr *fmh = NULL;
+	struct skd_request_context *skreq;
+	struct request *req = NULL;
+	struct bio *bio = NULL;
+	struct skd_scsi_request *scsi_req;
+	struct page *page;
+	unsigned long io_flags;
+	int error;
+	u32 lba;
+	u32 count;
+	int data_dir;
+	u32 be_lba;
+	u32 be_count;
+	u64 be_dmaa;
+	u64 cmdctxt;
+	u32 timo_slot;
+	void *cmd_ptr;
+	int flush, fua;
+
+	if (skdev->state != SKD_DRVR_STATE_ONLINE) {
+		skd_request_fn_not_online(q);
+		return;
+	}
+
+	if (skd_queue_stopped(skdev)) {
+		if (skdev->skmsg_free_list == NULL ||
+		    skdev->skreq_free_list == NULL ||
+		    skdev->in_flight >= skdev->queue_low_water_mark)
+			/* There is still some kind of shortage */
+			return;
+
+		skd_unstop_queue(skdev);
+	}
+
+	/*
+	 * Stop conditions:
+	 *  - There are no more native requests
+	 *  - There are already the maximum number of requests in progress
+	 *  - There are no more skd_request_context entries
+	 *  - There are no more FIT msg buffers
+	 */
+	for (;; ) {
+
+		flush = fua = 0;
+
+		if (!skd_bio) {
+			req = blk_peek_request(q);
+
+			/* Are there any native requests to start? */
+			if (req == NULL)
+				break;
+
+			lba = (u32)blk_rq_pos(req);
+			count = blk_rq_sectors(req);
+			data_dir = rq_data_dir(req);
+			io_flags = req->cmd_flags;
+
+			if (io_flags & REQ_FLUSH)
+				flush++;
+
+			if (io_flags & REQ_FUA)
+				fua++;
+
+			VPRINTK(skdev,
+				"new req=%p lba=%u(0x%x) count=%u(0x%x) dir=%d\n",
+				req, lba, lba, count, count, data_dir);
+		} else {
+			if (!list_empty(&skdev->flush_list)) {
+				/* Process data part of FLUSH request. */
+				bio = (struct bio *)skd_flush_cmd_dequeue(skdev);
+				flush++;
+				VPRINTK(skdev, "processing FLUSH request with data.\n");
+			} else {
+				/* peek at our bio queue */
+				bio = bio_list_peek(&skdev->bio_queue);
+			}
+
+			/* Are there any native requests to start? */
+			if (bio == NULL)
+				break;
+
+			lba = (u32)bio->bi_sector;
+			count = bio_sectors(bio);
+			data_dir = bio_data_dir(bio);
+			io_flags = bio->bi_rw;
+
+			VPRINTK(skdev,
+				"new bio=%p lba=%u(0x%x) count=%u(0x%x) dir=%d\n",
+				bio, lba, lba, count, count, data_dir);
+
+			if (io_flags & REQ_FLUSH)
+				flush++;
+
+			if (io_flags & REQ_FUA)
+				fua++;
+		}
+
+		/* At this point we know there is a request
+		 * (from our bio q or req q depending on the way
+		 * the driver is built do checks for resources.
+		 */
+
+		/* Are too many requets already in progress? */
+		if (skdev->in_flight >= skdev->cur_max_queue_depth) {
+			VPRINTK(skdev, "qdepth %d, limit %d\n",
+				skdev->in_flight, skdev->cur_max_queue_depth);
+			break;
+		}
+
+		/* Is a skd_request_context available? */
+		skreq = skdev->skreq_free_list;
+		if (skreq == NULL) {
+			VPRINTK(skdev, "Out of req=%p\n", q);
+			break;
+		}
+		SKD_ASSERT(skreq->state == SKD_REQ_STATE_IDLE);
+		SKD_ASSERT((skreq->id & SKD_ID_INCR) == 0);
+
+		/* Now we check to see if we can get a fit msg */
+		if (skmsg == NULL) {
+			if (skdev->skmsg_free_list == NULL) {
+				VPRINTK(skdev, "Out of msg\n");
+				break;
+			}
+		}
+
+		skreq->flush_cmd = 0;
+		skreq->n_sg = 0;
+		skreq->sg_byte_count = 0;
+		skreq->discard_page = 0;
+
+		/*
+		 * OK to now dequeue request from either bio or q.
+		 *
+		 * At this point we are comitted to either start or reject
+		 * the native request. Note that skd_request_context is
+		 * available but is still at the head of the free list.
+		 */
+		if (!skd_bio) {
+			blk_start_request(req);
+			skreq->req = req;
+			skreq->fitmsg_id = 0;
+		} else {
+			if (unlikely(flush == SKD_FLUSH_DATA_SECOND)) {
+				skreq->bio = bio;
+			} else {
+				skreq->bio = bio_list_pop(&skdev->bio_queue);
+				SKD_ASSERT(skreq->bio == bio);
+				skreq->start_time = jiffies;
+				part_inc_in_flight(&skdev->disk->part0,
+						   bio_data_dir(bio));
+			}
+
+			skreq->fitmsg_id = 0;
+		}
+
+		/* Either a FIT msg is in progress or we have to start one. */
+		if (skmsg == NULL) {
+			/* Are there any FIT msg buffers available? */
+			skmsg = skdev->skmsg_free_list;
+			if (skmsg == NULL) {
+				VPRINTK(skdev, "Out of msg skdev=%p\n", skdev);
+				break;
+			}
+			SKD_ASSERT(skmsg->state == SKD_MSG_STATE_IDLE);
+			SKD_ASSERT((skmsg->id & SKD_ID_INCR) == 0);
+
+			skdev->skmsg_free_list = skmsg->next;
+
+			skmsg->state = SKD_MSG_STATE_BUSY;
+			skmsg->id += SKD_ID_INCR;
+
+			/* Initialize the FIT msg header */
+			fmh = (struct fit_msg_hdr *)skmsg->msg_buf;
+			memset(fmh, 0, sizeof(*fmh));
+			fmh->protocol_id = FIT_PROTOCOL_ID_SOFIT;
+			skmsg->length = sizeof(*fmh);
+		}
+
+		skreq->fitmsg_id = skmsg->id;
+
+		/*
+		 * Note that a FIT msg may have just been started
+		 * but contains no SoFIT requests yet.
+		 */
+
+		/*
+		 * Transcode the request, checking as we go. The outcome of
+		 * the transcoding is represented by the error variable.
+		 */
+		cmd_ptr = &skmsg->msg_buf[skmsg->length];
+		memset(cmd_ptr, 0, 32);
+
+		be_lba = cpu_to_be32(lba);
+		be_count = cpu_to_be32(count);
+		be_dmaa = cpu_to_be64((u64)skreq->sksg_dma_address);
+		cmdctxt = skreq->id + SKD_ID_INCR;
+
+		scsi_req = cmd_ptr;
+		scsi_req->hdr.tag = cmdctxt;
+		scsi_req->hdr.sg_list_dma_address = be_dmaa;
+
+		if (data_dir == READ)
+			skreq->sg_data_dir = SKD_DATA_DIR_CARD_TO_HOST;
+		else
+			skreq->sg_data_dir = SKD_DATA_DIR_HOST_TO_CARD;
+
+		if (io_flags & REQ_DISCARD) {
+			page = alloc_page(GFP_ATOMIC | __GFP_ZERO);
+			if (!page) {
+				pr_err("request_fn:Page allocation failed.\n");
+				skd_end_request(skdev, skreq, -ENOMEM);
+				break;
+			}
+			skreq->discard_page = 1;
+			skd_prep_discard_cdb(scsi_req, skreq, page, lba, count);
+
+		} else if (flush == SKD_FLUSH_ZERO_SIZE_FIRST) {
+			skd_prep_zerosize_flush_cdb(scsi_req, skreq);
+			SKD_ASSERT(skreq->flush_cmd == 1);
+
+		} else {
+			skd_prep_rw_cdb(scsi_req, data_dir, lba, count);
+		}
+
+		if (fua)
+			scsi_req->cdb[1] |= SKD_FUA_NV;
+
+		if ((!skd_bio && !req->bio) ||
+			(skd_bio && flush == SKD_FLUSH_ZERO_SIZE_FIRST))
+			goto skip_sg;
+
+		error = skd_preop_sg_list(skdev, skreq);
+
+		if (error != 0) {
+			/*
+			 * Complete the native request with error.
+			 * Note that the request context is still at the
+			 * head of the free list, and that the SoFIT request
+			 * was encoded into the FIT msg buffer but the FIT
+			 * msg length has not been updated. In short, the
+			 * only resource that has been allocated but might
+			 * not be used is that the FIT msg could be empty.
+			 */
+			DPRINTK(skdev, "error Out\n");
+			skd_end_request(skdev, skreq, error);
+			continue;
+		}
+
+skip_sg:
+		scsi_req->hdr.sg_list_len_bytes =
+			cpu_to_be32(skreq->sg_byte_count);
+
+		/* Complete resource allocations. */
+		skdev->skreq_free_list = skreq->next;
+		skreq->state = SKD_REQ_STATE_BUSY;
+		skreq->id += SKD_ID_INCR;
+
+		skmsg->length += sizeof(struct skd_scsi_request);
+		fmh->num_protocol_cmds_coalesced++;
+
+		/*
+		 * Update the active request counts.
+		 * Capture the timeout timestamp.
+		 */
+		skreq->timeout_stamp = skdev->timeout_stamp;
+		timo_slot = skreq->timeout_stamp & SKD_TIMEOUT_SLOT_MASK;
+		skdev->timeout_slot[timo_slot]++;
+		skdev->in_flight++;
+		VPRINTK(skdev, "req=0x%x busy=%d\n",
+			skreq->id, skdev->in_flight);
+
+		/*
+		 * If the FIT msg buffer is full send it.
+		 */
+		if (skmsg->length >= SKD_N_FITMSG_BYTES ||
+		    fmh->num_protocol_cmds_coalesced >= skd_max_req_per_msg) {
+			skd_send_fitmsg(skdev, skmsg);
+			skmsg = NULL;
+			fmh = NULL;
+		}
+	}
+
+	/*
+	 * Is a FIT msg in progress? If it is empty put the buffer back
+	 * on the free list. If it is non-empty send what we got.
+	 * This minimizes latency when there are fewer requests than
+	 * what fits in a FIT msg.
+	 */
+	if (skmsg != NULL) {
+		/* Bigger than just a FIT msg header? */
+		if (skmsg->length > sizeof(struct fit_msg_hdr)) {
+			VPRINTK(skdev, "sending msg=%p, len %d\n",
+				skmsg, skmsg->length);
+			skd_send_fitmsg(skdev, skmsg);
+		} else {
+			/*
+			 * The FIT msg is empty. It means we got started
+			 * on the msg, but the requests were rejected.
+			 */
+			skmsg->state = SKD_MSG_STATE_IDLE;
+			skmsg->id += SKD_ID_INCR;
+			skmsg->next = skdev->skmsg_free_list;
+			skdev->skmsg_free_list = skmsg;
+		}
+		skmsg = NULL;
+		fmh = NULL;
+	}
+
+	/*
+	 * If req is non-NULL it means there is something to do but
+	 * we are out of a resource.
+	 */
+	if (((!skd_bio) && req) ||
+	    ((skd_bio) && bio_list_peek(&skdev->bio_queue)))
+		skd_stop_queue(skdev);
+}
+
+static void skd_end_request_blk(struct skd_device *skdev,
+				struct skd_request_context *skreq, int error)
+{
+	struct request *req = skreq->req;
+	unsigned int io_flags = req->cmd_flags;
+
+	if ((io_flags & REQ_DISCARD) &&
+		(skreq->discard_page == 1)) {
+		VPRINTK(skdev, "skd_end_request_blk, free the page!");
+		free_page((unsigned long)req->buffer);
+		req->buffer = NULL;
+	}
+
+	if (unlikely(error)) {
+		struct request *req = skreq->req;
+		char *cmd = (rq_data_dir(req) == READ) ? "read" : "write";
+		u32 lba = (u32)blk_rq_pos(req);
+		u32 count = blk_rq_sectors(req);
+
+		pr_err("(%s): Error cmd=%s sect=%u count=%u id=0x%x\n",
+		       skd_name(skdev), cmd, lba, count, skreq->id);
+	} else
+		VPRINTK(skdev, "id=0x%x error=%d\n", skreq->id, error);
+
+	__blk_end_request_all(skreq->req, error);
+}
+
+static int skd_preop_sg_list_blk(struct skd_device *skdev,
+				 struct skd_request_context *skreq)
+{
+	struct request *req = skreq->req;
+	int writing = skreq->sg_data_dir == SKD_DATA_DIR_HOST_TO_CARD;
+	int pci_dir = writing ? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE;
+	struct scatterlist *sg = &skreq->sg[0];
+	int n_sg;
+	int i;
+
+	skreq->sg_byte_count = 0;
+
+	/* SKD_ASSERT(skreq->sg_data_dir == SKD_DATA_DIR_HOST_TO_CARD ||
+		   skreq->sg_data_dir == SKD_DATA_DIR_CARD_TO_HOST); */
+
+	n_sg = blk_rq_map_sg(skdev->queue, req, sg);
+	if (n_sg <= 0)
+		return -EINVAL;
+
+	/*
+	 * Map scatterlist to PCI bus addresses.
+	 * Note PCI might change the number of entries.
+	 */
+	n_sg = pci_map_sg(skdev->pdev, sg, n_sg, pci_dir);
+	if (n_sg <= 0)
+		return -EINVAL;
+
+	SKD_ASSERT(n_sg <= skdev->sgs_per_request);
+
+	skreq->n_sg = n_sg;
+
+	for (i = 0; i < n_sg; i++) {
+		struct fit_sg_descriptor *sgd = &skreq->sksg_list[i];
+		u32 cnt = sg_dma_len(&sg[i]);
+		uint64_t dma_addr = sg_dma_address(&sg[i]);
+
+		sgd->control = FIT_SGD_CONTROL_NOT_LAST;
+		sgd->byte_count = cnt;
+		skreq->sg_byte_count += cnt;
+		sgd->host_side_addr = dma_addr;
+		sgd->dev_side_addr = 0;
+	}
+
+	skreq->sksg_list[n_sg - 1].next_desc_ptr = 0LL;
+	skreq->sksg_list[n_sg - 1].control = FIT_SGD_CONTROL_LAST;
+
+	if (unlikely(skdev->dbg_level > 1)) {
+		VPRINTK(skdev, "skreq=%x sksg_list=%p sksg_dma=%llx\n",
+			skreq->id, skreq->sksg_list, skreq->sksg_dma_address);
+		for (i = 0; i < n_sg; i++) {
+			struct fit_sg_descriptor *sgd = &skreq->sksg_list[i];
+			VPRINTK(skdev, "  sg[%d] count=%u ctrl=0x%x "
+				"addr=0x%llx next=0x%llx\n",
+				i, sgd->byte_count, sgd->control,
+				sgd->host_side_addr, sgd->next_desc_ptr);
+		}
+	}
+
+	return 0;
+}
+
+static void skd_postop_sg_list_blk(struct skd_device *skdev,
+				   struct skd_request_context *skreq)
+{
+	int writing = skreq->sg_data_dir == SKD_DATA_DIR_HOST_TO_CARD;
+	int pci_dir = writing ? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE;
+
+	/*
+	 * restore the next ptr for next IO request so we
+	 * don't have to set it every time.
+	 */
+	skreq->sksg_list[skreq->n_sg - 1].next_desc_ptr =
+		skreq->sksg_dma_address +
+		((skreq->n_sg) * sizeof(struct fit_sg_descriptor));
+	pci_unmap_sg(skdev->pdev, &skreq->sg[0], skreq->n_sg, pci_dir);
+}
+
+static void skd_end_request_bio(struct skd_device *skdev,
+				struct skd_request_context *skreq, int error)
+{
+	struct bio *bio = skreq->bio;
+	int rw = bio_data_dir(bio);
+	unsigned long io_flags = bio->bi_rw;
+
+	if ((io_flags & REQ_DISCARD) &&
+		(skreq->discard_page == 1)) {
+		VPRINTK(skdev, "biomode: skd_end_request: freeing DISCARD page.\n");
+		free_page((unsigned long)page_address(bio->bi_io_vec->bv_page));
+	}
+
+	if (unlikely(error)) {
+		u32 lba = (u32)skreq->bio->bi_sector;
+		u32 count = bio_sectors(skreq->bio);
+		char *cmd = (rw == WRITE) ? "write" : "read";
+		pr_err("(%s): Error cmd=%s sect=%u count=%u id=0x%x\n",
+		       skd_name(skdev), cmd, lba, count, skreq->id);
+	}
+	{
+		int cpu = part_stat_lock();
+
+		if (likely(!error)) {
+			part_stat_inc(cpu, &skdev->disk->part0, ios[rw]);
+			part_stat_add(cpu, &skdev->disk->part0, sectors[rw],
+				      bio_sectors(bio));
+		}
+		part_stat_add(cpu, &skdev->disk->part0, ticks[rw],
+			      jiffies - skreq->start_time);
+		part_dec_in_flight(&skdev->disk->part0, rw);
+		part_stat_unlock();
+	}
+
+	VPRINTK(skdev, "id=0x%x error=%d\n", skreq->id, error);
+
+	bio_endio(skreq->bio, error);
+}
+
+static int skd_preop_sg_list_bio(struct skd_device *skdev,
+				 struct skd_request_context *skreq)
+{
+	struct bio *bio = skreq->bio;
+	int writing = skreq->sg_data_dir == SKD_DATA_DIR_HOST_TO_CARD;
+	int pci_dir = writing ? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE;
+	int n_sg;
+	int i;
+	struct bio_vec *vec;
+	struct fit_sg_descriptor *sgd;
+	u64 dma_addr;
+	u32 count;
+	int errs = 0;
+	unsigned int io_flags = 0;
+	io_flags |= bio->bi_rw;
+
+	skreq->sg_byte_count = 0;
+	n_sg = skreq->n_sg = skreq->bio->bi_vcnt;
+
+	if (n_sg <= 0)
+		return -EINVAL;
+
+	if (n_sg > skdev->sgs_per_request) {
+		pr_err("(%s): sg overflow n=%d\n",
+		       skd_name(skdev), n_sg);
+		skreq->n_sg = 0;
+		return -EIO;
+	}
+
+	for (i = 0; i < skreq->n_sg; i++) {
+		vec = bio_iovec_idx(bio, i);
+		dma_addr = pci_map_page(skdev->pdev,
+					vec->bv_page,
+					vec->bv_offset, vec->bv_len, pci_dir);
+		count = vec->bv_len;
+
+		if (count == 0 || count > 64u * 1024u || (count & 3) != 0
+		    || (dma_addr & 3) != 0) {
+			pr_err(
+			       "(%s): Bad sg ix=%d count=%d addr=0x%llx\n",
+			       skd_name(skdev), i, count, dma_addr);
+			errs++;
+		}
+
+		sgd = &skreq->sksg_list[i];
+
+		sgd->control = FIT_SGD_CONTROL_NOT_LAST;
+		sgd->byte_count = vec->bv_len;
+		skreq->sg_byte_count += vec->bv_len;
+		sgd->host_side_addr = dma_addr;
+		sgd->dev_side_addr = 0; /* not used */
+	}
+
+	skreq->sksg_list[n_sg - 1].next_desc_ptr = 0LL;
+	skreq->sksg_list[n_sg - 1].control = FIT_SGD_CONTROL_LAST;
+
+
+	 if (!(io_flags & REQ_DISCARD)) {
+		count = bio_sectors(bio) << 9u;
+		if (count != skreq->sg_byte_count) {
+			pr_err("(%s): mismatch count sg=%d req=%d\n",
+			       skd_name(skdev), skreq->sg_byte_count, count);
+			errs++;
+		}
+	}
+
+	if (unlikely(skdev->dbg_level > 1)) {
+		VPRINTK(skdev, "skreq=%x sksg_list=%p sksg_dma=%llx\n",
+			skreq->id, skreq->sksg_list, skreq->sksg_dma_address);
+		for (i = 0; i < n_sg; i++) {
+			struct fit_sg_descriptor *sgd = &skreq->sksg_list[i];
+			VPRINTK(skdev, "  sg[%d] count=%u ctrl=0x%x "
+				"addr=0x%llx next=0x%llx\n",
+				i, sgd->byte_count, sgd->control,
+				sgd->host_side_addr, sgd->next_desc_ptr);
+		}
+	}
+
+	if (errs != 0) {
+		skd_postop_sg_list(skdev, skreq);
+		skreq->n_sg = 0;
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int skd_preop_sg_list(struct skd_device *skdev,
+			     struct skd_request_context *skreq)
+{
+	if (!skd_bio)
+		return skd_preop_sg_list_blk(skdev, skreq);
+	else
+		return skd_preop_sg_list_bio(skdev, skreq);
+}
+
+static void skd_postop_sg_list_bio(struct skd_device *skdev,
+				   struct skd_request_context *skreq)
+{
+	int writing = skreq->sg_data_dir == SKD_DATA_DIR_HOST_TO_CARD;
+	int pci_dir = writing ? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE;
+	int i;
+	struct fit_sg_descriptor *sgd;
+
+	/*
+	 * restore the next ptr for next IO request so we
+	 * don't have to set it every time.
+	 */
+	skreq->sksg_list[skreq->n_sg - 1].next_desc_ptr =
+		skreq->sksg_dma_address +
+		((skreq->n_sg) * sizeof(struct fit_sg_descriptor));
+
+	for (i = 0; i < skreq->n_sg; i++) {
+		sgd = &skreq->sksg_list[i];
+		pci_unmap_page(skdev->pdev, sgd->host_side_addr,
+			       sgd->byte_count, pci_dir);
+	}
+}
+
+static void skd_postop_sg_list(struct skd_device *skdev,
+			       struct skd_request_context *skreq)
+{
+	if (!skd_bio)
+		skd_postop_sg_list_blk(skdev, skreq);
+	else
+		skd_postop_sg_list_bio(skdev, skreq);
+}
+
+static void skd_end_request(struct skd_device *skdev,
+			    struct skd_request_context *skreq, int error)
+{
+	if (likely(!skd_bio))
+		skd_end_request_blk(skdev, skreq, error);
+	else
+		skd_end_request_bio(skdev, skreq, error);
+}
+
+static void skd_request_fn_not_online(struct request_queue *q)
+{
+	struct skd_device *skdev = q->queuedata;
+	int error;
+
+	SKD_ASSERT(skdev->state != SKD_DRVR_STATE_ONLINE);
+
+	skd_log_skdev(skdev, "req_not_online");
+	switch (skdev->state) {
+	case SKD_DRVR_STATE_PAUSING:
+	case SKD_DRVR_STATE_PAUSED:
+	case SKD_DRVR_STATE_STARTING:
+	case SKD_DRVR_STATE_RESTARTING:
+	case SKD_DRVR_STATE_WAIT_BOOT:
+	/* In case of starting, we haven't started the queue,
+	 * so we can't get here... but requests are
+	 * possibly hanging out waiting for us because we
+	 * reported the dev/skd0 already.  They'll wait
+	 * forever if connect doesn't complete.
+	 * What to do??? delay dev/skd0 ??
+	 */
+	case SKD_DRVR_STATE_BUSY:
+	case SKD_DRVR_STATE_BUSY_IMMINENT:
+	case SKD_DRVR_STATE_BUSY_ERASE:
+	case SKD_DRVR_STATE_DRAINING_TIMEOUT:
+		return;
+
+	case SKD_DRVR_STATE_BUSY_SANITIZE:
+	case SKD_DRVR_STATE_STOPPING:
+	case SKD_DRVR_STATE_SYNCING:
+	case SKD_DRVR_STATE_FAULT:
+	case SKD_DRVR_STATE_DISAPPEARED:
+	default:
+		error = -EIO;
+		break;
+	}
+
+	/* If we get here, terminate all pending block requeusts
+	 * with EIO and any scsi pass thru with appropriate sense
+	 */
+
+	skd_fail_all_pending(skdev);
+}
+
+/*
+ *****************************************************************************
+ * TIMER
+ *****************************************************************************
+ */
+
+static void skd_timer_tick_not_online(struct skd_device *skdev);
+
+static void skd_timer_tick(ulong arg)
+{
+	struct skd_device *skdev = (struct skd_device *)arg;
+
+	u32 timo_slot;
+	u32 overdue_timestamp;
+	unsigned long reqflags;
+	u32 state;
+
+	if (skdev->state == SKD_DRVR_STATE_FAULT)
+		/* The driver has declared fault, and we want it to
+		 * stay that way until driver is reloaded.
+		 */
+		return;
+
+	spin_lock_irqsave(&skdev->lock, reqflags);
+
+	state = SKD_READL(skdev, FIT_STATUS);
+	state &= FIT_SR_DRIVE_STATE_MASK;
+	if (state != skdev->drive_state)
+		skd_isr_fwstate(skdev);
+
+	if (skdev->state != SKD_DRVR_STATE_ONLINE) {
+		skd_timer_tick_not_online(skdev);
+		goto timer_func_out;
+	}
+	skdev->timeout_stamp++;
+	timo_slot = skdev->timeout_stamp & SKD_TIMEOUT_SLOT_MASK;
+
+	/*
+	 * All requests that happened during the previous use of
+	 * this slot should be done by now. The previous use was
+	 * over 7 seconds ago.
+	 */
+	if (skdev->timeout_slot[timo_slot] == 0)
+		goto timer_func_out;
+
+	/* Something is overdue */
+	overdue_timestamp = skdev->timeout_stamp - SKD_N_TIMEOUT_SLOT;
+
+	DPRINTK(skdev, "found %d timeouts, draining busy=%d\n",
+		skdev->timeout_slot[timo_slot], skdev->in_flight);
+	pr_err("(%s): Overdue IOs (%d), busy %d\n",
+	       skd_name(skdev), skdev->timeout_slot[timo_slot],
+	       skdev->in_flight);
+
+	skdev->timer_countdown = SKD_DRAINING_TIMO;
+	skdev->state = SKD_DRVR_STATE_DRAINING_TIMEOUT;
+	skdev->timo_slot = timo_slot;
+	skd_stop_queue(skdev);
+
+timer_func_out:
+	mod_timer(&skdev->timer, (jiffies + HZ));
+
+	spin_unlock_irqrestore(&skdev->lock, reqflags);
+}
+
+static void skd_timer_tick_not_online(struct skd_device *skdev)
+{
+	switch (skdev->state) {
+	case SKD_DRVR_STATE_IDLE:
+	case SKD_DRVR_STATE_LOAD:
+		break;
+	case SKD_DRVR_STATE_BUSY_SANITIZE:
+		VPRINTK(skdev, "drive busy sanitize[%x], driver[%x]\n",
+			skdev->drive_state, skdev->state);
+		/* If we've been in sanitize for 3 seconds, we figure we're not
+		 * going to get anymore completions, so recover requests now
+		 */
+		if (skdev->timer_countdown > 0) {
+			skdev->timer_countdown--;
+			return;
+		}
+		skd_recover_requests(skdev, 0);
+		break;
+
+	case SKD_DRVR_STATE_BUSY:
+	case SKD_DRVR_STATE_BUSY_IMMINENT:
+	case SKD_DRVR_STATE_BUSY_ERASE:
+		VPRINTK(skdev, "busy[%x], countdown=%d\n",
+			skdev->state, skdev->timer_countdown);
+		if (skdev->timer_countdown > 0) {
+			skdev->timer_countdown--;
+			return;
+		}
+		DPRINTK(skdev, "busy[%x], timedout=%d, restarting device.",
+			skdev->state, skdev->timer_countdown);
+		skd_restart_device(skdev);
+		break;
+
+	case SKD_DRVR_STATE_WAIT_BOOT:
+	case SKD_DRVR_STATE_STARTING:
+		if (skdev->timer_countdown > 0) {
+			skdev->timer_countdown--;
+			return;
+		}
+		/* For now, we fault the drive.  Could attempt resets to
+		 * revcover at some point. */
+		skdev->state = SKD_DRVR_STATE_FAULT;
+
+		pr_err("(%s): DriveFault Connect Timeout (%x)\n",
+		       skd_name(skdev), skdev->drive_state);
+
+		/*start the queue so we can respond with error to requests */
+		/* wakeup anyone waiting for startup complete */
+		skd_start_queue(skdev);
+		skdev->gendisk_on = -1;
+		wake_up_interruptible(&skdev->waitq);
+		break;
+
+	case SKD_DRVR_STATE_ONLINE:
+		/* shouldn't get here. */
+		break;
+
+	case SKD_DRVR_STATE_PAUSING:
+	case SKD_DRVR_STATE_PAUSED:
+		break;
+
+	case SKD_DRVR_STATE_DRAINING_TIMEOUT:
+		DPRINTK(skdev,
+			"draining busy [%d] tick[%d] qdb[%d] tmls[%d]\n",
+			skdev->timo_slot,
+			skdev->timer_countdown,
+			skdev->in_flight,
+			skdev->timeout_slot[skdev->timo_slot]);
+		/* if the slot has cleared we can let the I/O continue */
+		if (skdev->timeout_slot[skdev->timo_slot] == 0) {
+			DPRINTK(skdev, "Slot drained, starting queue.\n");
+			skdev->state = SKD_DRVR_STATE_ONLINE;
+			skd_start_queue(skdev);
+			return;
+		}
+		if (skdev->timer_countdown > 0) {
+			skdev->timer_countdown--;
+			return;
+		}
+		skd_restart_device(skdev);
+		break;
+
+	case SKD_DRVR_STATE_RESTARTING:
+		if (skdev->timer_countdown > 0) {
+			skdev->timer_countdown--;
+			return;
+		}
+		/* For now, we fault the drive. Could attempt resets to
+		 * revcover at some point. */
+		skdev->state = SKD_DRVR_STATE_FAULT;
+		pr_err("(%s): DriveFault Reconnect Timeout (%x)\n",
+		       skd_name(skdev), skdev->drive_state);
+
+		/*
+		 * Recovering does two things:
+		 * 1. completes IO with error
+		 * 2. reclaims dma resources
+		 * When is it safe to recover requests?
+		 * - if the drive state is faulted
+		 * - if the state is still soft reset after out timeout
+		 * - if the drive registers are dead (state = FF)
+		 * If it is "unsafe", we still need to recover, so we will
+		 * disable pci bus mastering and disable our interrupts.
+		 */
+
+		if ((skdev->drive_state == FIT_SR_DRIVE_SOFT_RESET) ||
+		    (skdev->drive_state == FIT_SR_DRIVE_FAULT) ||
+		    (skdev->drive_state == FIT_SR_DRIVE_STATE_MASK))
+			/* It never came out of soft reset. Try to
+			 * recover the requests and then let them
+			 * fail. This is to mitigate hung processes. */
+			skd_recover_requests(skdev, 0);
+		else {
+			pr_err("(%s): Disable BusMaster (%x)\n",
+			       skd_name(skdev), skdev->drive_state);
+			pci_disable_device(skdev->pdev);
+			skd_disable_interrupts(skdev);
+			skd_recover_requests(skdev, 0);
+		}
+
+		/*start the queue so we can respond with error to requests */
+		/* wakeup anyone waiting for startup complete */
+		skd_start_queue(skdev);
+		skdev->gendisk_on = -1;
+		wake_up_interruptible(&skdev->waitq);
+		break;
+
+	case SKD_DRVR_STATE_RESUMING:
+	case SKD_DRVR_STATE_STOPPING:
+	case SKD_DRVR_STATE_SYNCING:
+	case SKD_DRVR_STATE_FAULT:
+	case SKD_DRVR_STATE_DISAPPEARED:
+	default:
+		break;
+	}
+}
+
+static int skd_start_timer(struct skd_device *skdev)
+{
+	int rc;
+
+	init_timer(&skdev->timer);
+	setup_timer(&skdev->timer, skd_timer_tick, (ulong)skdev);
+
+	rc = mod_timer(&skdev->timer, (jiffies + HZ));
+	if (rc)
+		pr_err("%s: failed to start timer %d\n",
+		       __func__, rc);
+	return rc;
+}
+
+static void skd_kill_timer(struct skd_device *skdev)
+{
+	del_timer_sync(&skdev->timer);
+}
+
+/*
+ *****************************************************************************
+ * IOCTL
+ *****************************************************************************
+ */
+static int skd_ioctl_sg_io(struct skd_device *skdev,
+			   fmode_t mode, void __user *argp);
+static int skd_sg_io_get_and_check_args(struct skd_device *skdev,
+					struct skd_sg_io *sksgio);
+static int skd_sg_io_obtain_skspcl(struct skd_device *skdev,
+				   struct skd_sg_io *sksgio);
+static int skd_sg_io_prep_buffering(struct skd_device *skdev,
+				    struct skd_sg_io *sksgio);
+static int skd_sg_io_copy_buffer(struct skd_device *skdev,
+				 struct skd_sg_io *sksgio, int dxfer_dir);
+static int skd_sg_io_send_fitmsg(struct skd_device *skdev,
+				 struct skd_sg_io *sksgio);
+static int skd_sg_io_await(struct skd_device *skdev, struct skd_sg_io *sksgio);
+static int skd_sg_io_release_skspcl(struct skd_device *skdev,
+				    struct skd_sg_io *sksgio);
+static int skd_sg_io_put_status(struct skd_device *skdev,
+				struct skd_sg_io *sksgio);
+
+static void skd_complete_special(struct skd_device *skdev,
+				 volatile struct fit_completion_entry_v1
+				 *skcomp,
+				 volatile struct fit_comp_error_info *skerr,
+				 struct skd_special_context *skspcl);
+
+static int skd_bdev_ioctl(struct block_device *bdev, fmode_t mode,
+			  uint cmd_in, ulong arg)
+{
+	int rc = 0;
+	struct gendisk *disk = bdev->bd_disk;
+	struct skd_device *skdev = disk->private_data;
+	void __user *p = (void *)arg;
+
+	DPRINTK(skdev, "%s: CMD[%s] ioctl  mode 0x%x, cmd 0x%x arg %0lx\n",
+		disk->disk_name, current->comm, mode, cmd_in, arg);
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
+	switch (cmd_in) {
+	case SG_SET_TIMEOUT:
+	case SG_GET_TIMEOUT:
+	case SG_GET_VERSION_NUM:
+		rc = scsi_cmd_ioctl(disk->queue, disk, mode, cmd_in, p);
+		break;
+	case SG_IO:
+		rc = skd_ioctl_sg_io(skdev, mode, p);
+		break;
+
+	default:
+		rc = -ENOTTY;
+		break;
+	}
+
+	DPRINTK(skdev, "%s:  completion rc %d\n", disk->disk_name, rc);
+	return rc;
+}
+
+static int skd_ioctl_sg_io(struct skd_device *skdev, fmode_t mode,
+			   void __user *argp)
+{
+	int rc;
+	struct skd_sg_io sksgio;
+
+	memset(&sksgio, 0, sizeof(sksgio));
+	sksgio.mode = mode;
+	sksgio.argp = argp;
+	sksgio.iov = &sksgio.no_iov_iov;
+
+	switch (skdev->state) {
+	case SKD_DRVR_STATE_ONLINE:
+	case SKD_DRVR_STATE_BUSY_IMMINENT:
+		break;
+
+	default:
+		DPRINTK(skdev, "drive not online\n");
+		rc = -ENXIO;
+		goto out;
+	}
+
+	if ((rc = skd_sg_io_get_and_check_args(skdev, &sksgio)) ||
+	    (rc = skd_sg_io_obtain_skspcl(skdev, &sksgio)) ||
+	    (rc = skd_sg_io_prep_buffering(skdev, &sksgio)) ||
+	    (rc = skd_sg_io_copy_buffer(skdev, &sksgio, SG_DXFER_TO_DEV)))
+		goto out;
+
+	if ((rc = skd_sg_io_send_fitmsg(skdev, &sksgio)) ||
+	    (rc = skd_sg_io_await(skdev, &sksgio)))
+		goto out;
+
+	if ((rc = skd_sg_io_copy_buffer(skdev, &sksgio, SG_DXFER_FROM_DEV)) ||
+	    (rc = skd_sg_io_put_status(skdev, &sksgio)))
+		goto out;
+
+	rc = 0;
+
+out:
+	skd_sg_io_release_skspcl(skdev, &sksgio);
+
+	if (sksgio.iov != NULL && sksgio.iov != &sksgio.no_iov_iov)
+		kfree(sksgio.iov);
+	return rc;
+}
+
+static int skd_sg_io_get_and_check_args(struct skd_device *skdev,
+					struct skd_sg_io *sksgio)
+{
+	struct sg_io_hdr *sgp = &sksgio->sg;
+	int i, acc;
+
+	if (!access_ok(VERIFY_WRITE, sksgio->argp, sizeof(sg_io_hdr_t))) {
+		DPRINTK(skdev, "access sg failed %p\n", sksgio->argp);
+		return -EFAULT;
+	}
+
+	if (__copy_from_user(sgp, sksgio->argp, sizeof(sg_io_hdr_t))) {
+		DPRINTK(skdev, "copy_from_user sg failed %p\n", sksgio->argp);
+		return -EFAULT;
+	}
+
+	if (sgp->interface_id != SG_INTERFACE_ID_ORIG) {
+		DPRINTK(skdev, "interface_id invalid 0x%x\n",
+			sgp->interface_id);
+		return -EINVAL;
+	}
+
+	if (sgp->cmd_len > sizeof(sksgio->cdb)) {
+		DPRINTK(skdev, "cmd_len invalid %d\n", sgp->cmd_len);
+		return -EINVAL;
+	}
+
+	if (sgp->iovec_count > 256) {
+		DPRINTK(skdev, "iovec_count invalid %d\n", sgp->iovec_count);
+		return -EINVAL;
+	}
+
+	if (sgp->dxfer_len > (PAGE_SIZE * SKD_N_SG_PER_SPECIAL)) {
+		DPRINTK(skdev, "dxfer_len invalid %d\n", sgp->dxfer_len);
+		return -EINVAL;
+	}
+
+	switch (sgp->dxfer_direction) {
+	case SG_DXFER_NONE:
+		acc = -1;
+		break;
+
+	case SG_DXFER_TO_DEV:
+		acc = VERIFY_READ;
+		break;
+
+	case SG_DXFER_FROM_DEV:
+	case SG_DXFER_TO_FROM_DEV:
+		acc = VERIFY_WRITE;
+		break;
+
+	default:
+		DPRINTK(skdev, "dxfer_dir invalid %d\n", sgp->dxfer_direction);
+		return -EINVAL;
+	}
+
+	if (copy_from_user(sksgio->cdb, sgp->cmdp, sgp->cmd_len)) {
+		DPRINTK(skdev, "copy_from_user cmdp failed %p\n", sgp->cmdp);
+		return -EFAULT;
+	}
+
+	if (sgp->mx_sb_len != 0) {
+		if (!access_ok(VERIFY_WRITE, sgp->sbp, sgp->mx_sb_len)) {
+			DPRINTK(skdev, "access sbp failed %p\n", sgp->sbp);
+			return -EFAULT;
+		}
+	}
+
+	if (sgp->iovec_count == 0) {
+		sksgio->iov[0].iov_base = sgp->dxferp;
+		sksgio->iov[0].iov_len = sgp->dxfer_len;
+		sksgio->iovcnt = 1;
+		sksgio->dxfer_len = sgp->dxfer_len;
+	} else {
+		struct sg_iovec *iov;
+		uint nbytes = sizeof(*iov) * sgp->iovec_count;
+		size_t iov_data_len;
+
+		iov = kmalloc(nbytes, GFP_KERNEL);
+		if (iov == NULL) {
+			DPRINTK(skdev, "alloc iovec failed %d\n",
+				sgp->iovec_count);
+			return -ENOMEM;
+		}
+		sksgio->iov = iov;
+		sksgio->iovcnt = sgp->iovec_count;
+
+		if (copy_from_user(iov, sgp->dxferp, nbytes)) {
+			DPRINTK(skdev, "copy_from_user iovec failed %p\n",
+				sgp->dxferp);
+			return -EFAULT;
+		}
+
+		/*
+		 * Sum up the vecs, making sure they don't overflow
+		 */
+		iov_data_len = 0;
+		for (i = 0; i < sgp->iovec_count; i++) {
+			if (iov_data_len + iov[i].iov_len < iov_data_len)
+				return -EINVAL;
+			iov_data_len += iov[i].iov_len;
+		}
+
+		/* SG_IO howto says that the shorter of the two wins */
+		if (sgp->dxfer_len < iov_data_len) {
+			sksgio->iovcnt = iov_shorten((struct iovec *)iov,
+						     sgp->iovec_count,
+						     sgp->dxfer_len);
+			sksgio->dxfer_len = sgp->dxfer_len;
+		} else
+			sksgio->dxfer_len = iov_data_len;
+	}
+
+	if (sgp->dxfer_direction != SG_DXFER_NONE) {
+		struct sg_iovec *iov = sksgio->iov;
+		for (i = 0; i < sksgio->iovcnt; i++, iov++) {
+			if (!access_ok(acc, iov->iov_base, iov->iov_len)) {
+				DPRINTK(skdev, "access data failed %p/%d\n",
+					iov->iov_base, (int)iov->iov_len);
+				return -EFAULT;
+			}
+		}
+	}
+
+	return 0;
+}
+
+static int skd_sg_io_obtain_skspcl(struct skd_device *skdev,
+				   struct skd_sg_io *sksgio)
+{
+	struct skd_special_context *skspcl = NULL;
+	int rc;
+
+	for (;; ) {
+		ulong flags;
+
+		spin_lock_irqsave(&skdev->lock, flags);
+		skspcl = skdev->skspcl_free_list;
+		if (skspcl != NULL) {
+			skdev->skspcl_free_list =
+				(struct skd_special_context *)skspcl->req.next;
+			skspcl->req.id += SKD_ID_INCR;
+			skspcl->req.state = SKD_REQ_STATE_SETUP;
+			skspcl->orphaned = 0;
+			skspcl->req.n_sg = 0;
+		}
+		spin_unlock_irqrestore(&skdev->lock, flags);
+
+		if (skspcl != NULL) {
+			rc = 0;
+			break;
+		}
+
+		DPRINTK(skdev, "blocking\n");
+
+		rc = wait_event_interruptible_timeout(
+				skdev->waitq,
+				(skdev->skspcl_free_list != NULL),
+				msecs_to_jiffies(sksgio->sg.timeout));
+
+		DPRINTK(skdev, "unblocking, rc=%d\n", rc);
+
+		if (rc <= 0) {
+			if (rc == 0)
+				rc = -ETIMEDOUT;
+			else
+				rc = -EINTR;
+			break;
+		}
+		/*
+		 * If we get here rc > 0 meaning the timeout to
+		 * wait_event_interruptible_timeout() had time left, hence the
+		 * sought event -- non-empty free list -- happened.
+		 * Retry the allocation.
+		 */
+	}
+	sksgio->skspcl = skspcl;
+
+	return rc;
+}
+
+static int skd_skreq_prep_buffering(struct skd_device *skdev,
+				    struct skd_request_context *skreq,
+				    u32 dxfer_len)
+{
+	u32 resid = dxfer_len;
+
+	/*
+	 * The DMA engine must have aligned addresses and byte counts.
+	 */
+	resid += (-resid) & 3;
+	skreq->sg_byte_count = resid;
+
+	skreq->n_sg = 0;
+
+	while (resid > 0) {
+		u32 nbytes = PAGE_SIZE;
+		u32 ix = skreq->n_sg;
+		struct scatterlist *sg = &skreq->sg[ix];
+		struct fit_sg_descriptor *sksg = &skreq->sksg_list[ix];
+		struct page *page;
+
+		if (nbytes > resid)
+			nbytes = resid;
+
+		page = alloc_page(GFP_KERNEL);
+		if (page == NULL)
+			return -ENOMEM;
+
+		sg_set_page(sg, page, nbytes, 0);
+
+		/* TODO: This should be going through a pci_???()
+		 * routine to do proper mapping. */
+		sksg->control = FIT_SGD_CONTROL_NOT_LAST;
+		sksg->byte_count = nbytes;
+
+		sksg->host_side_addr = sg_phys(sg);
+
+		sksg->dev_side_addr = 0;
+		sksg->next_desc_ptr = skreq->sksg_dma_address +
+				      (ix + 1) * sizeof(*sksg);
+
+		skreq->n_sg++;
+		resid -= nbytes;
+	}
+
+	if (skreq->n_sg > 0) {
+		u32 ix = skreq->n_sg - 1;
+		struct fit_sg_descriptor *sksg = &skreq->sksg_list[ix];
+
+		sksg->control = FIT_SGD_CONTROL_LAST;
+		sksg->next_desc_ptr = 0;
+	}
+
+	if (unlikely(skdev->dbg_level > 1)) {
+		u32 i;
+
+		VPRINTK(skdev, "skreq=%x sksg_list=%p sksg_dma=%llx\n",
+			skreq->id, skreq->sksg_list, skreq->sksg_dma_address);
+		for (i = 0; i < skreq->n_sg; i++) {
+			struct fit_sg_descriptor *sgd = &skreq->sksg_list[i];
+
+			VPRINTK(skdev, "  sg[%d] count=%u ctrl=0x%x "
+				"addr=0x%llx next=0x%llx\n",
+				i, sgd->byte_count, sgd->control,
+				sgd->host_side_addr, sgd->next_desc_ptr);
+		}
+	}
+
+	return 0;
+}
+
+static int skd_sg_io_prep_buffering(struct skd_device *skdev,
+				    struct skd_sg_io *sksgio)
+{
+	struct skd_special_context *skspcl = sksgio->skspcl;
+	struct skd_request_context *skreq = &skspcl->req;
+	u32 dxfer_len = sksgio->dxfer_len;
+	int rc;
+
+	rc = skd_skreq_prep_buffering(skdev, skreq, dxfer_len);
+	/*
+	 * Eventually, errors or not, skd_release_special() is called
+	 * to recover allocations including partial allocations.
+	 */
+	return rc;
+}
+
+static int skd_sg_io_copy_buffer(struct skd_device *skdev,
+				 struct skd_sg_io *sksgio, int dxfer_dir)
+{
+	struct skd_special_context *skspcl = sksgio->skspcl;
+	u32 iov_ix = 0;
+	struct sg_iovec curiov;
+	u32 sksg_ix = 0;
+	u8 *bufp = NULL;
+	u32 buf_len = 0;
+	u32 resid = sksgio->dxfer_len;
+	int rc;
+
+	curiov.iov_len = 0;
+	curiov.iov_base = NULL;
+
+	if (dxfer_dir != sksgio->sg.dxfer_direction) {
+		if (dxfer_dir != SG_DXFER_TO_DEV ||
+		    sksgio->sg.dxfer_direction != SG_DXFER_TO_FROM_DEV)
+			return 0;
+	}
+
+	while (resid > 0) {
+		u32 nbytes = PAGE_SIZE;
+
+		if (curiov.iov_len == 0) {
+			curiov = sksgio->iov[iov_ix++];
+			continue;
+		}
+
+		if (buf_len == 0) {
+			struct page *page;
+			page = sg_page(&skspcl->req.sg[sksg_ix++]);
+			bufp = page_address(page);
+			buf_len = PAGE_SIZE;
+		}
+
+		nbytes = min_t(u32, nbytes, resid);
+		nbytes = min_t(u32, nbytes, curiov.iov_len);
+		nbytes = min_t(u32, nbytes, buf_len);
+
+		if (dxfer_dir == SG_DXFER_TO_DEV)
+			rc = __copy_from_user(bufp, curiov.iov_base, nbytes);
+		else
+			rc = __copy_to_user(curiov.iov_base, bufp, nbytes);
+
+		if (rc)
+			return -EFAULT;
+
+		resid -= nbytes;
+		curiov.iov_len -= nbytes;
+		curiov.iov_base += nbytes;
+		buf_len -= nbytes;
+	}
+
+	return 0;
+}
+
+static int skd_sg_io_send_fitmsg(struct skd_device *skdev,
+				 struct skd_sg_io *sksgio)
+{
+	struct skd_special_context *skspcl = sksgio->skspcl;
+	struct fit_msg_hdr *fmh = (struct fit_msg_hdr *)skspcl->msg_buf;
+	struct skd_scsi_request *scsi_req = (struct skd_scsi_request *)&fmh[1];
+
+	memset(skspcl->msg_buf, 0, SKD_N_SPECIAL_FITMSG_BYTES);
+
+	/* Initialize the FIT msg header */
+	fmh->protocol_id = FIT_PROTOCOL_ID_SOFIT;
+	fmh->num_protocol_cmds_coalesced = 1;
+
+	/* Initialize the SCSI request */
+	if (sksgio->sg.dxfer_direction != SG_DXFER_NONE)
+		scsi_req->hdr.sg_list_dma_address =
+			cpu_to_be64(skspcl->req.sksg_dma_address);
+	scsi_req->hdr.tag = skspcl->req.id;
+	scsi_req->hdr.sg_list_len_bytes =
+		cpu_to_be32(skspcl->req.sg_byte_count);
+	memcpy(scsi_req->cdb, sksgio->cdb, sizeof(scsi_req->cdb));
+
+	skspcl->req.state = SKD_REQ_STATE_BUSY;
+	skd_send_special_fitmsg(skdev, skspcl);
+
+	return 0;
+}
+
+static int skd_sg_io_await(struct skd_device *skdev, struct skd_sg_io *sksgio)
+{
+	unsigned long flags;
+	int rc;
+
+	rc = wait_event_interruptible_timeout(skdev->waitq,
+					      (sksgio->skspcl->req.state !=
+					       SKD_REQ_STATE_BUSY),
+					      msecs_to_jiffies(sksgio->sg.
+							       timeout));
+
+	spin_lock_irqsave(&skdev->lock, flags);
+
+	if (sksgio->skspcl->req.state == SKD_REQ_STATE_ABORTED) {
+		DPRINTK(skdev, "skspcl %p aborted\n", sksgio->skspcl);
+
+		/* Build check cond, sense and let command finish. */
+		/* For a timeout, we must fabricate completion and sense
+		 * data to complete the command */
+		sksgio->skspcl->req.completion.status =
+			SAM_STAT_CHECK_CONDITION;
+
+		memset(&sksgio->skspcl->req.err_info, 0,
+		       sizeof(sksgio->skspcl->req.err_info));
+		sksgio->skspcl->req.err_info.type = 0x70;
+		sksgio->skspcl->req.err_info.key = ABORTED_COMMAND;
+		sksgio->skspcl->req.err_info.code = 0x44;
+		sksgio->skspcl->req.err_info.qual = 0;
+		rc = 0;
+	} else if (sksgio->skspcl->req.state != SKD_REQ_STATE_BUSY)
+		/* No longer on the adapter. We finish. */
+		rc = 0;
+	else {
+		/* Something's gone wrong. Still busy. Timeout or
+		 * user interrupted (control-C). Mark as an orphan
+		 * so it will be disposed when completed. */
+		sksgio->skspcl->orphaned = 1;
+		sksgio->skspcl = NULL;
+		if (rc == 0) {
+			DPRINTK(skdev, "timed out %p (%u ms)\n", sksgio,
+				sksgio->sg.timeout);
+			rc = -ETIMEDOUT;
+		} else {
+			DPRINTK(skdev, "cntlc %p\n", sksgio);
+			rc = -EINTR;
+		}
+	}
+
+	spin_unlock_irqrestore(&skdev->lock, flags);
+
+	return rc;
+}
+
+static int skd_sg_io_put_status(struct skd_device *skdev,
+				struct skd_sg_io *sksgio)
+{
+	struct sg_io_hdr *sgp = &sksgio->sg;
+	struct skd_special_context *skspcl = sksgio->skspcl;
+	int resid = 0;
+
+	u32 nb = be32_to_cpu(skspcl->req.completion.num_returned_bytes);
+
+	sgp->status = skspcl->req.completion.status;
+	resid = sksgio->dxfer_len - nb;
+
+	sgp->masked_status = sgp->status & STATUS_MASK;
+	sgp->msg_status = 0;
+	sgp->host_status = 0;
+	sgp->driver_status = 0;
+	sgp->resid = resid;
+	if (sgp->masked_status || sgp->host_status || sgp->driver_status)
+		sgp->info |= SG_INFO_CHECK;
+
+	DPRINTK(skdev, "status %x masked %x resid 0x%x\n", sgp->status,
+		sgp->masked_status, sgp->resid);
+
+	if (sgp->masked_status == SAM_STAT_CHECK_CONDITION) {
+		if (sgp->mx_sb_len > 0) {
+			struct fit_comp_error_info *ei = &skspcl->req.err_info;
+			u32 nbytes = sizeof(*ei);
+
+			nbytes = min_t(u32, nbytes, sgp->mx_sb_len);
+
+			sgp->sb_len_wr = nbytes;
+
+			if (__copy_to_user(sgp->sbp, ei, nbytes)) {
+				DPRINTK(skdev, "copy_to_user sense failed %p\n",
+					sgp->sbp);
+				return -EFAULT;
+			}
+		}
+	}
+
+	if (__copy_to_user(sksgio->argp, sgp, sizeof(sg_io_hdr_t))) {
+		DPRINTK(skdev, "copy_to_user sg failed %p\n", sksgio->argp);
+		return -EFAULT;
+	}
+
+	return 0;
+}
+
+static int skd_sg_io_release_skspcl(struct skd_device *skdev,
+				    struct skd_sg_io *sksgio)
+{
+	struct skd_special_context *skspcl = sksgio->skspcl;
+
+	if (skspcl != NULL) {
+		ulong flags;
+
+		sksgio->skspcl = NULL;
+
+		spin_lock_irqsave(&skdev->lock, flags);
+		skd_release_special(skdev, skspcl);
+		spin_unlock_irqrestore(&skdev->lock, flags);
+	}
+
+	return 0;
+}
+
+/*
+ *****************************************************************************
+ * INTERNAL REQUESTS -- generated by driver itself
+ *****************************************************************************
+ */
+
+static int skd_format_internal_skspcl(struct skd_device *skdev)
+{
+	struct skd_special_context *skspcl = &skdev->internal_skspcl;
+	struct fit_sg_descriptor *sgd = &skspcl->req.sksg_list[0];
+	struct fit_msg_hdr *fmh;
+	uint64_t dma_address;
+	struct skd_scsi_request *scsi;
+
+	fmh = (struct fit_msg_hdr *)&skspcl->msg_buf[0];
+	fmh->protocol_id = FIT_PROTOCOL_ID_SOFIT;
+	fmh->num_protocol_cmds_coalesced = 1;
+
+	scsi = (struct skd_scsi_request *)&skspcl->msg_buf[64];
+	memset(scsi, 0, sizeof(*scsi));
+	dma_address = skspcl->req.sksg_dma_address;
+	scsi->hdr.sg_list_dma_address = cpu_to_be64(dma_address);
+	sgd->control = FIT_SGD_CONTROL_LAST;
+	sgd->byte_count = 0;
+	sgd->host_side_addr = skspcl->db_dma_address;
+	sgd->dev_side_addr = 0;
+	sgd->next_desc_ptr = 0LL;
+
+	return 1;
+}
+
+#define WR_BUF_SIZE SKD_N_INTERNAL_BYTES
+
+static void skd_send_internal_skspcl(struct skd_device *skdev,
+				     struct skd_special_context *skspcl,
+				     u8 opcode)
+{
+	struct fit_sg_descriptor *sgd = &skspcl->req.sksg_list[0];
+	struct skd_scsi_request *scsi;
+	unsigned char *buf = skspcl->data_buf;
+	int i;
+
+	if (skspcl->req.state != SKD_REQ_STATE_IDLE)
+		/*
+		 * A refresh is already in progress.
+		 * Just wait for it to finish.
+		 */
+		return;
+
+	SKD_ASSERT((skspcl->req.id & SKD_ID_INCR) == 0);
+	skspcl->req.state = SKD_REQ_STATE_BUSY;
+	skspcl->req.id += SKD_ID_INCR;
+
+	scsi = (struct skd_scsi_request *)&skspcl->msg_buf[64];
+	scsi->hdr.tag = skspcl->req.id;
+
+	memset(scsi->cdb, 0, sizeof(scsi->cdb));
+
+	switch (opcode) {
+	case TEST_UNIT_READY:
+		scsi->cdb[0] = TEST_UNIT_READY;
+		sgd->byte_count = 0;
+		scsi->hdr.sg_list_len_bytes = 0;
+		break;
+
+	case READ_CAPACITY:
+		scsi->cdb[0] = READ_CAPACITY;
+		sgd->byte_count = SKD_N_READ_CAP_BYTES;
+		scsi->hdr.sg_list_len_bytes = cpu_to_be32(sgd->byte_count);
+		break;
+
+	case INQUIRY:
+		scsi->cdb[0] = INQUIRY;
+		scsi->cdb[1] = 0x01;    /* evpd */
+		scsi->cdb[2] = 0x80;    /* serial number page */
+		scsi->cdb[4] = 0x10;
+		sgd->byte_count = 16;
+		scsi->hdr.sg_list_len_bytes = cpu_to_be32(sgd->byte_count);
+		break;
+
+	case SYNCHRONIZE_CACHE:
+		scsi->cdb[0] = SYNCHRONIZE_CACHE;
+		sgd->byte_count = 0;
+		scsi->hdr.sg_list_len_bytes = 0;
+		break;
+
+	case WRITE_BUFFER:
+		scsi->cdb[0] = WRITE_BUFFER;
+		scsi->cdb[1] = 0x02;
+		scsi->cdb[7] = (WR_BUF_SIZE & 0xFF00) >> 8;
+		scsi->cdb[8] = WR_BUF_SIZE & 0xFF;
+		sgd->byte_count = WR_BUF_SIZE;
+		scsi->hdr.sg_list_len_bytes = cpu_to_be32(sgd->byte_count);
+		/* fill incrementing byte pattern */
+		for (i = 0; i < sgd->byte_count; i++)
+			buf[i] = i & 0xFF;
+		break;
+
+	case READ_BUFFER:
+		scsi->cdb[0] = READ_BUFFER;
+		scsi->cdb[1] = 0x02;
+		scsi->cdb[7] = (WR_BUF_SIZE & 0xFF00) >> 8;
+		scsi->cdb[8] = WR_BUF_SIZE & 0xFF;
+		sgd->byte_count = WR_BUF_SIZE;
+		scsi->hdr.sg_list_len_bytes = cpu_to_be32(sgd->byte_count);
+		memset(skspcl->data_buf, 0, sgd->byte_count);
+		break;
+
+	default:
+		SKD_ASSERT("Don't know what to send");
+		return;
+
+	}
+	skd_send_special_fitmsg(skdev, skspcl);
+}
+
+static void skd_refresh_device_data(struct skd_device *skdev)
+{
+	struct skd_special_context *skspcl = &skdev->internal_skspcl;
+
+	skd_send_internal_skspcl(skdev, skspcl, TEST_UNIT_READY);
+}
+
+static int skd_chk_read_buf(struct skd_device *skdev,
+			    struct skd_special_context *skspcl)
+{
+	unsigned char *buf = skspcl->data_buf;
+	int i;
+
+	/* check for incrementing byte pattern */
+	for (i = 0; i < WR_BUF_SIZE; i++)
+		if (buf[i] != (i & 0xFF))
+			return 1;
+
+	return 0;
+}
+
+static void skd_log_check_status(struct skd_device *skdev, u8 status, u8 key,
+				 u8 code, u8 qual, u8 fruc)
+{
+	/* If the check condition is of special interest, log a message */
+	if ((status == SAM_STAT_CHECK_CONDITION) && (key == 0x02)
+	    && (code == 0x04) && (qual == 0x06)) {
+		pr_err("(%s): *** LOST_WRITE_DATA ERROR *** key/asc/"
+		       "ascq/fruc %02x/%02x/%02x/%02x\n",
+		       skd_name(skdev), key, code, qual, fruc);
+	}
+}
+
+static void skd_complete_internal(struct skd_device *skdev,
+				  volatile struct fit_completion_entry_v1
+				  *skcomp,
+				  volatile struct fit_comp_error_info *skerr,
+				  struct skd_special_context *skspcl)
+{
+	u8 *buf = skspcl->data_buf;
+	u8 status;
+	int i;
+	struct skd_scsi_request *scsi =
+		(struct skd_scsi_request *)&skspcl->msg_buf[64];
+
+	SKD_ASSERT(skspcl == &skdev->internal_skspcl);
+
+	DPRINTK(skdev, "complete internal %x\n", scsi->cdb[0]);
+
+	skspcl->req.completion = *skcomp;
+	skspcl->req.state = SKD_REQ_STATE_IDLE;
+	skspcl->req.id += SKD_ID_INCR;
+
+	status = skspcl->req.completion.status;
+
+	skd_log_check_status(skdev, status, skerr->key, skerr->code,
+			     skerr->qual, skerr->fruc);
+
+	switch (scsi->cdb[0]) {
+	case TEST_UNIT_READY:
+		if (status == SAM_STAT_GOOD)
+			skd_send_internal_skspcl(skdev, skspcl, WRITE_BUFFER);
+		else if ((status == SAM_STAT_CHECK_CONDITION) &&
+			 (skerr->key == MEDIUM_ERROR))
+			skd_send_internal_skspcl(skdev, skspcl, WRITE_BUFFER);
+		else {
+			if (skdev->state == SKD_DRVR_STATE_STOPPING) {
+				VPRINTK(skdev, "TUR failed, don't send anymore"
+					"state 0x%x\n", skdev->state);
+				return;
+			}
+			DPRINTK(skdev, "**** TUR failed, retry skerr\n");
+			skd_send_internal_skspcl(skdev, skspcl, 0x00);
+		}
+		break;
+
+	case WRITE_BUFFER:
+		if (status == SAM_STAT_GOOD)
+			skd_send_internal_skspcl(skdev, skspcl, READ_BUFFER);
+		else {
+			if (skdev->state == SKD_DRVR_STATE_STOPPING) {
+				VPRINTK(skdev, "write buffer failed, don't send"
+					" anymore state 0x%x\n", skdev->state);
+				return;
+			}
+			DPRINTK(skdev,
+				"**** write buffer failed, retry skerr\n");
+			skd_send_internal_skspcl(skdev, skspcl, 0x00);
+		}
+		break;
+
+	case READ_BUFFER:
+		if (status == SAM_STAT_GOOD) {
+			if (skd_chk_read_buf(skdev, skspcl) == 0)
+				skd_send_internal_skspcl(skdev, skspcl,
+							 READ_CAPACITY);
+			else {
+				pr_err(
+				       "(%s):*** W/R Buffer mismatch %d ***\n",
+				       skd_name(skdev), skdev->connect_retries);
+				if (skdev->connect_retries <
+				    SKD_MAX_CONNECT_RETRIES) {
+					skdev->connect_retries++;
+					skd_soft_reset(skdev);
+				} else {
+					pr_err(
+					       "(%s): W/R Buffer Connect Error\n",
+					       skd_name(skdev));
+					return;
+				}
+			}
+
+		} else {
+			if (skdev->state == SKD_DRVR_STATE_STOPPING) {
+				VPRINTK(skdev,
+					"read buffer failed, don't send anymore"
+					"state 0x%x\n", skdev->state);
+				return;
+			}
+			DPRINTK(skdev,
+				"**** read buffer failed, retry skerr\n");
+			skd_send_internal_skspcl(skdev, skspcl, 0x00);
+		}
+		break;
+
+	case READ_CAPACITY:
+		skdev->read_cap_is_valid = 0;
+		if (status == SAM_STAT_GOOD) {
+			skdev->read_cap_last_lba =
+				(buf[0] << 24) | (buf[1] << 16) |
+				(buf[2] << 8) | buf[3];
+			skdev->read_cap_blocksize =
+				(buf[4] << 24) | (buf[5] << 16) |
+				(buf[6] << 8) | buf[7];
+
+			DPRINTK(skdev, "last lba %d, bs %d\n",
+				skdev->read_cap_last_lba,
+				skdev->read_cap_blocksize);
+
+			set_capacity(skdev->disk, skdev->read_cap_last_lba + 1);
+
+			skdev->read_cap_is_valid = 1;
+
+			skd_send_internal_skspcl(skdev, skspcl, INQUIRY);
+		} else if ((status == SAM_STAT_CHECK_CONDITION) &&
+			   (skerr->key == MEDIUM_ERROR)) {
+			skdev->read_cap_last_lba = ~0;
+			set_capacity(skdev->disk, skdev->read_cap_last_lba + 1);
+			DPRINTK(skdev,
+				"**** MEDIUM ERROR caused READCAP to fail, ignore failure and continue to inquiry\n");
+			skd_send_internal_skspcl(skdev, skspcl, INQUIRY);
+		} else {
+			DPRINTK(skdev, "**** READCAP failed, retry TUR\n");
+			skd_send_internal_skspcl(skdev, skspcl,
+						 TEST_UNIT_READY);
+		}
+		break;
+
+	case INQUIRY:
+		skdev->inquiry_is_valid = 0;
+		if (status == SAM_STAT_GOOD) {
+			skdev->inquiry_is_valid = 1;
+
+			for (i = 0; i < 12; i++)
+				skdev->inq_serial_num[i] = buf[i + 4];
+			skdev->inq_serial_num[12] = 0;
+		}
+
+		if (skd_unquiesce_dev(skdev) < 0)
+			DPRINTK(skdev, "**** failed, to ONLINE device\n");
+		 /* connection is complete */
+		skdev->connect_retries = 0;
+		break;
+
+	case SYNCHRONIZE_CACHE:
+		if (status == SAM_STAT_GOOD)
+			skdev->sync_done = 1;
+		else
+			skdev->sync_done = -1;
+		wake_up_interruptible(&skdev->waitq);
+		break;
+
+	default:
+		SKD_ASSERT("we didn't send this");
+	}
+}
+
+/*
+ *****************************************************************************
+ * FIT MESSAGES
+ *****************************************************************************
+ */
+
+static void skd_send_fitmsg(struct skd_device *skdev,
+			    struct skd_fitmsg_context *skmsg)
+{
+	u64 qcmd;
+	struct fit_msg_hdr *fmh;
+
+	VPRINTK(skdev, "dma address 0x%llx, busy=%d\n",
+		skmsg->mb_dma_address, skdev->in_flight);
+	VPRINTK(skdev, "msg_buf 0x%p, offset %x\n",
+		skmsg->msg_buf, skmsg->offset);
+
+	qcmd = skmsg->mb_dma_address;
+	qcmd |= FIT_QCMD_QID_NORMAL;
+
+	fmh = (struct fit_msg_hdr *)skmsg->msg_buf;
+	skmsg->outstanding = fmh->num_protocol_cmds_coalesced;
+
+	if (unlikely(skdev->dbg_level > 1)) {
+		u8 *bp = (u8 *)skmsg->msg_buf;
+		int i;
+		for (i = 0; i < skmsg->length; i += 8) {
+			VPRINTK(skdev, "  msg[%2d] %02x %02x %02x %02x "
+				"%02x %02x %02x %02x\n",
+				i, bp[i + 0], bp[i + 1], bp[i + 2],
+				bp[i + 3], bp[i + 4], bp[i + 5],
+				bp[i + 6], bp[i + 7]);
+			if (i == 0)
+				i = 64 - 8;
+		}
+	}
+
+	if (skmsg->length > 256)
+		qcmd |= FIT_QCMD_MSGSIZE_512;
+	else if (skmsg->length > 128)
+		qcmd |= FIT_QCMD_MSGSIZE_256;
+	else if (skmsg->length > 64)
+		qcmd |= FIT_QCMD_MSGSIZE_128;
+	else
+		/*
+		 * This makes no sense because the FIT msg header is
+		 * 64 bytes. If the msg is only 64 bytes long it has
+		 * no payload.
+		 */
+		qcmd |= FIT_QCMD_MSGSIZE_64;
+
+	SKD_WRITEQ(skdev, qcmd, FIT_Q_COMMAND);
+
+}
+
+static void skd_send_special_fitmsg(struct skd_device *skdev,
+				    struct skd_special_context *skspcl)
+{
+	u64 qcmd;
+
+	if (unlikely(skdev->dbg_level > 1)) {
+		u8 *bp = (u8 *)skspcl->msg_buf;
+		int i;
+
+		for (i = 0; i < SKD_N_SPECIAL_FITMSG_BYTES; i += 8) {
+			VPRINTK(skdev,
+				"  spcl[%2d] %02x %02x %02x %02x  "
+				"%02x %02x %02x %02x\n", i,
+				bp[i + 0], bp[i + 1], bp[i + 2], bp[i + 3],
+				bp[i + 4], bp[i + 5], bp[i + 6], bp[i + 7]);
+			if (i == 0)
+				i = 64 - 8;
+		}
+
+		VPRINTK(skdev, "skspcl=%p id=%04x sksg_list=%p sksg_dma=%llx\n",
+			skspcl, skspcl->req.id, skspcl->req.sksg_list,
+			skspcl->req.sksg_dma_address);
+		for (i = 0; i < skspcl->req.n_sg; i++) {
+			struct fit_sg_descriptor *sgd =
+				&skspcl->req.sksg_list[i];
+
+			VPRINTK(skdev, "  sg[%d] count=%u ctrl=0x%x "
+				"addr=0x%llx next=0x%llx\n",
+				i, sgd->byte_count, sgd->control,
+				sgd->host_side_addr, sgd->next_desc_ptr);
+		}
+	}
+
+	/*
+	 * Special FIT msgs are always 128 bytes: a 64-byte FIT hdr
+	 * and one 64-byte SSDI command.
+	 */
+	qcmd = skspcl->mb_dma_address;
+	qcmd |= FIT_QCMD_QID_NORMAL + FIT_QCMD_MSGSIZE_128;
+
+	SKD_WRITEQ(skdev, qcmd, FIT_Q_COMMAND);
+}
+
+/*
+ *****************************************************************************
+ * COMPLETION QUEUE
+ *****************************************************************************
+ */
+
+static void skd_complete_other(struct skd_device *skdev,
+			       volatile struct fit_completion_entry_v1 *skcomp,
+			       volatile struct fit_comp_error_info *skerr);
+
+
+static void skd_requeue_request(struct skd_device *skdev,
+				struct skd_request_context *skreq);
+
+struct sns_info {
+	u8 type;
+	u8 stat;
+	u8 key;
+	u8 asc;
+	u8 ascq;
+	u8 mask;
+	enum skd_check_status_action action;
+};
+
+static struct sns_info skd_chkstat_table[] = {
+	/* Good */
+	{ 0x70, 0x02, RECOVERED_ERROR, 0,    0,	   0x1c,
+	  SKD_CHECK_STATUS_REPORT_GOOD },
+
+	/* Smart alerts */
+	{ 0x70, 0x02, NO_SENSE,	       0x0B, 0x00, 0x1E,	/* warnings */
+	  SKD_CHECK_STATUS_REPORT_SMART_ALERT },
+	{ 0x70, 0x02, NO_SENSE,	       0x5D, 0x00, 0x1E,	/* thresholds */
+	  SKD_CHECK_STATUS_REPORT_SMART_ALERT },
+	{ 0x70, 0x02, RECOVERED_ERROR, 0x0B, 0x01, 0x1F,        /* temperature over trigger */
+	  SKD_CHECK_STATUS_REPORT_SMART_ALERT },
+
+	/* Retry (with limits) */
+	{ 0x70, 0x02, 0x0B,	       0,    0,	   0x1C,        /* This one is for DMA ERROR */
+	  SKD_CHECK_STATUS_REQUEUE_REQUEST },
+	{ 0x70, 0x02, 0x06,	       0x0B, 0x00, 0x1E,        /* warnings */
+	  SKD_CHECK_STATUS_REQUEUE_REQUEST },
+	{ 0x70, 0x02, 0x06,	       0x5D, 0x00, 0x1E,        /* thresholds */
+	  SKD_CHECK_STATUS_REQUEUE_REQUEST },
+	{ 0x70, 0x02, 0x06,	       0x80, 0x30, 0x1F,        /* backup power */
+	  SKD_CHECK_STATUS_REQUEUE_REQUEST },
+
+	/* Busy (or about to be) */
+	{ 0x70, 0x02, 0x06,	       0x3f, 0x01, 0x1F, /* fw changed */
+	  SKD_CHECK_STATUS_BUSY_IMMINENT },
+};
+
+/*
+ * Look up status and sense data to decide how to handle the error
+ * from the device.
+ * mask says which fields must match e.g., mask=0x18 means check
+ * type and stat, ignore key, asc, ascq.
+ */
+
+static enum skd_check_status_action skd_check_status(struct skd_device *skdev,
+				u8 cmp_status,
+				volatile struct fit_comp_error_info *skerr)
+{
+	int i, n;
+
+	pr_err("(%s): key/asc/ascq/fruc %02x/%02x/%02x/%02x\n",
+	       skd_name(skdev), skerr->key, skerr->code, skerr->qual,
+	       skerr->fruc);
+
+	VPRINTK(skdev, "stat: t=%02x stat=%02x k=%02x c=%02x q=%02x "
+		"fruc=%02x\n", skerr->type, cmp_status, skerr->key,
+		skerr->code, skerr->qual, skerr->fruc);
+
+	/* Does the info match an entry in the good category? */
+	n = sizeof(skd_chkstat_table) / sizeof(skd_chkstat_table[0]);
+	for (i = 0; i < n; i++) {
+		struct sns_info *sns = &skd_chkstat_table[i];
+
+		if (sns->mask & 0x10)
+			if (skerr->type != sns->type)
+				continue;
+
+		if (sns->mask & 0x08)
+			if (cmp_status != sns->stat)
+				continue;
+
+		if (sns->mask & 0x04)
+			if (skerr->key != sns->key)
+				continue;
+
+		if (sns->mask & 0x02)
+			if (skerr->code != sns->asc)
+				continue;
+
+		if (sns->mask & 0x01)
+			if (skerr->qual != sns->ascq)
+				continue;
+
+		if (sns->action == SKD_CHECK_STATUS_REPORT_SMART_ALERT) {
+			pr_err("(%s): SMART Alert: sense key/asc/ascq "
+			       "%02x/%02x/%02x\n",
+			       skd_name(skdev), skerr->key,
+			       skerr->code, skerr->qual);
+		}
+		return sns->action;
+	}
+
+	/* No other match, so nonzero status means error,
+	 * zero status means good
+	 */
+	if (cmp_status) {
+		DPRINTK(skdev, "status check: error\n");
+		return SKD_CHECK_STATUS_REPORT_ERROR;
+	}
+
+	DPRINTK(skdev, "status check good default\n");
+	return SKD_CHECK_STATUS_REPORT_GOOD;
+}
+
+static void skd_resolve_req_exception(struct skd_device *skdev,
+				      struct skd_request_context *skreq)
+{
+	u8 cmp_status = skreq->completion.status;
+
+	switch (skd_check_status(skdev, cmp_status, &skreq->err_info)) {
+	case SKD_CHECK_STATUS_REPORT_GOOD:
+	case SKD_CHECK_STATUS_REPORT_SMART_ALERT:
+		skd_end_request(skdev, skreq, 0);
+		break;
+
+	case SKD_CHECK_STATUS_BUSY_IMMINENT:
+		skd_log_skreq(skdev, skreq, "retry(busy)");
+		skd_requeue_request(skdev, skreq);
+		pr_info("(%s) drive BUSY imminent\n", skd_name(skdev));
+		skdev->state = SKD_DRVR_STATE_BUSY_IMMINENT;
+		skdev->timer_countdown = SKD_TIMER_MINUTES(20);
+		skd_quiesce_dev(skdev);
+		break;
+
+	case SKD_CHECK_STATUS_REQUEUE_REQUEST:
+		if (!skd_bio) {
+			if ((unsigned long) ++skreq->req->special <
+			    SKD_MAX_RETRIES) {
+				skd_log_skreq(skdev, skreq, "retry");
+				skd_requeue_request(skdev, skreq);
+				break;
+			}
+		}
+	/* fall through to report error */
+
+	case SKD_CHECK_STATUS_REPORT_ERROR:
+	default:
+		skd_end_request(skdev, skreq, -EIO);
+		break;
+	}
+}
+
+static void skd_requeue_request(struct skd_device *skdev,
+				struct skd_request_context *skreq)
+{
+	if (!skd_bio) {
+		blk_requeue_request(skdev->queue, skreq->req);
+	} else {
+		bio_list_add_head(&skdev->bio_queue, skreq->bio);
+		skreq->bio = NULL;
+	}
+}
+
+
+
+/* assume spinlock is already held */
+static void skd_release_skreq(struct skd_device *skdev,
+			      struct skd_request_context *skreq)
+{
+	u32 msg_slot;
+	struct skd_fitmsg_context *skmsg;
+
+	u32 timo_slot;
+
+	/*
+	 * Reclaim the FIT msg buffer if this is
+	 * the first of the requests it carried to
+	 * be completed. The FIT msg buffer used to
+	 * send this request cannot be reused until
+	 * we are sure the s1120 card has copied
+	 * it to its memory. The FIT msg might have
+	 * contained several requests. As soon as
+	 * any of them are completed we know that
+	 * the entire FIT msg was transferred.
+	 * Only the first completed request will
+	 * match the FIT msg buffer id. The FIT
+	 * msg buffer id is immediately updated.
+	 * When subsequent requests complete the FIT
+	 * msg buffer id won't match, so we know
+	 * quite cheaply that it is already done.
+	 */
+	msg_slot = skreq->fitmsg_id & SKD_ID_SLOT_MASK;
+	SKD_ASSERT(msg_slot < skdev->num_fitmsg_context);
+
+	skmsg = &skdev->skmsg_table[msg_slot];
+	if (skmsg->id == skreq->fitmsg_id) {
+		SKD_ASSERT(skmsg->state == SKD_MSG_STATE_BUSY);
+		SKD_ASSERT(skmsg->outstanding > 0);
+		skmsg->outstanding--;
+		if (skmsg->outstanding == 0) {
+			skmsg->state = SKD_MSG_STATE_IDLE;
+			skmsg->id += SKD_ID_INCR;
+			skmsg->next = skdev->skmsg_free_list;
+			skdev->skmsg_free_list = skmsg;
+		}
+	}
+
+	/*
+	 * Decrease the number of active requests.
+	 * Also decrements the count in the timeout slot.
+	 */
+	SKD_ASSERT(skdev->in_flight > 0);
+	skdev->in_flight -= 1;
+
+	timo_slot = skreq->timeout_stamp & SKD_TIMEOUT_SLOT_MASK;
+	SKD_ASSERT(skdev->timeout_slot[timo_slot] > 0);
+	skdev->timeout_slot[timo_slot] -= 1;
+
+	/*
+	 * Reset backpointer
+	 */
+	if (likely(!skd_bio))
+		skreq->req = NULL;
+	else
+		skreq->bio = NULL;
+
+
+	/*
+	 * Reclaim the skd_request_context
+	 */
+	skreq->state = SKD_REQ_STATE_IDLE;
+	skreq->id += SKD_ID_INCR;
+	skreq->next = skdev->skreq_free_list;
+	skdev->skreq_free_list = skreq;
+}
+
+#define DRIVER_INQ_EVPD_PAGE_CODE   0xDA
+
+static void skd_do_inq_page_00(struct skd_device *skdev,
+			       volatile struct fit_completion_entry_v1 *skcomp,
+			       volatile struct fit_comp_error_info *skerr,
+			       uint8_t *cdb, uint8_t *buf)
+{
+	uint16_t insert_pt, max_bytes, drive_pages, drive_bytes, new_size;
+
+	/* Caller requested "supported pages".  The driver needs to insert
+	 * its page.
+	 */
+	VPRINTK(skdev, "skd_do_driver_inquiry: modify supported pages.\n");
+
+	/* If the device rejected the request because the CDB was
+	 * improperly formed, then just leave.
+	 */
+	if (skcomp->status == SAM_STAT_CHECK_CONDITION &&
+	    skerr->key == ILLEGAL_REQUEST && skerr->code == 0x24)
+		return;
+
+	/* Get the amount of space the caller allocated */
+	max_bytes = (cdb[3] << 8) | cdb[4];
+
+	/* Get the number of pages actually returned by the device */
+	drive_pages = (buf[2] << 8) | buf[3];
+	drive_bytes = drive_pages + 4;
+	new_size = drive_pages + 1;
+
+	/* Supported pages must be in numerical order, so find where
+	 * the driver page needs to be inserted into the list of
+	 * pages returned by the device.
+	 */
+	for (insert_pt = 4; insert_pt < drive_bytes; insert_pt++) {
+		if (buf[insert_pt] == DRIVER_INQ_EVPD_PAGE_CODE)
+			return; /* Device using this page code. abort */
+		else if (buf[insert_pt] > DRIVER_INQ_EVPD_PAGE_CODE)
+			break;
+	}
+
+	if (insert_pt < max_bytes) {
+		uint16_t u;
+
+		/* Shift everything up one byte to make room. */
+		for (u = new_size + 3; u > insert_pt; u--)
+			buf[u] = buf[u - 1];
+		buf[insert_pt] = DRIVER_INQ_EVPD_PAGE_CODE;
+
+		/* SCSI byte order increment of num_returned_bytes by 1 */
+		skcomp->num_returned_bytes =
+			be32_to_cpu(skcomp->num_returned_bytes) + 1;
+		skcomp->num_returned_bytes =
+			be32_to_cpu(skcomp->num_returned_bytes);
+	}
+
+	/* update page length field to reflect the driver's page too */
+	buf[2] = (uint8_t)((new_size >> 8) & 0xFF);
+	buf[3] = (uint8_t)((new_size >> 0) & 0xFF);
+}
+
+static void skd_get_link_info(struct pci_dev *pdev, u8 *speed, u8 *width)
+{
+	int pcie_reg;
+	u16 pci_bus_speed;
+	u8 pci_lanes;
+
+	pcie_reg = pci_find_capability(pdev, PCI_CAP_ID_EXP);
+	if (pcie_reg) {
+		u16 linksta;
+		pci_read_config_word(pdev, pcie_reg + PCI_EXP_LNKSTA, &linksta);
+
+		pci_bus_speed = linksta & 0xF;
+		pci_lanes = (linksta & 0x3F0) >> 4;
+	} else {
+		*speed = STEC_LINK_UNKNOWN;
+		*width = 0xFF;
+		return;
+	}
+
+	switch (pci_bus_speed) {
+	case 1:
+		*speed = STEC_LINK_2_5GTS;
+		break;
+	case 2:
+		*speed = STEC_LINK_5GTS;
+		break;
+	case 3:
+		*speed = STEC_LINK_8GTS;
+		break;
+	default:
+		*speed = STEC_LINK_UNKNOWN;
+		break;
+	}
+
+	if (pci_lanes <= 0x20)
+		*width = pci_lanes;
+	else
+		*width = 0xFF;
+}
+
+static void skd_do_inq_page_da(struct skd_device *skdev,
+			       volatile struct fit_completion_entry_v1 *skcomp,
+			       volatile struct fit_comp_error_info *skerr,
+			       uint8_t *cdb, uint8_t *buf)
+{
+	unsigned max_bytes;
+	struct driver_inquiry_data inq;
+	u16 val;
+
+	VPRINTK(skdev, "skd_do_driver_inquiry: return driver page\n");
+
+	memset(&inq, 0, sizeof(inq));
+
+	inq.page_code = DRIVER_INQ_EVPD_PAGE_CODE;
+
+	if (skdev->pdev && skdev->pdev->bus) {
+		skd_get_link_info(skdev->pdev,
+				  &inq.pcie_link_speed, &inq.pcie_link_lanes);
+		inq.pcie_bus_number = cpu_to_be16(skdev->pdev->bus->number);
+		inq.pcie_device_number = PCI_SLOT(skdev->pdev->devfn);
+		inq.pcie_function_number = PCI_FUNC(skdev->pdev->devfn);
+
+		pci_read_config_word(skdev->pdev, PCI_VENDOR_ID, &val);
+		inq.pcie_vendor_id = cpu_to_be16(val);
+
+		pci_read_config_word(skdev->pdev, PCI_DEVICE_ID, &val);
+		inq.pcie_device_id = cpu_to_be16(val);
+
+		pci_read_config_word(skdev->pdev, PCI_SUBSYSTEM_VENDOR_ID,
+				     &val);
+		inq.pcie_subsystem_vendor_id = cpu_to_be16(val);
+
+		pci_read_config_word(skdev->pdev, PCI_SUBSYSTEM_ID, &val);
+		inq.pcie_subsystem_device_id = cpu_to_be16(val);
+	} else {
+		inq.pcie_bus_number = 0xFFFF;
+		inq.pcie_device_number = 0xFF;
+		inq.pcie_function_number = 0xFF;
+		inq.pcie_link_speed = 0xFF;
+		inq.pcie_link_lanes = 0xFF;
+		inq.pcie_vendor_id = 0xFFFF;
+		inq.pcie_device_id = 0xFFFF;
+		inq.pcie_subsystem_vendor_id = 0xFFFF;
+		inq.pcie_subsystem_device_id = 0xFFFF;
+	}
+
+	/* Driver version, fixed lenth, padded with spaces on the right */
+	inq.driver_version_length = sizeof(inq.driver_version);
+	memset(&inq.driver_version, ' ', sizeof(inq.driver_version));
+	memcpy(inq.driver_version, DRV_VER_COMPL,
+	       min(sizeof(inq.driver_version), strlen(DRV_VER_COMPL)));
+
+	inq.page_length = cpu_to_be16((sizeof(inq) - 4));
+
+	/* Clear the error set by the device */
+	skcomp->status = SAM_STAT_GOOD;
+	memset((void *)skerr, 0, sizeof(*skerr));
+
+	/* copy response into output buffer */
+	max_bytes = (cdb[3] << 8) | cdb[4];
+	memcpy(buf, &inq, min_t(unsigned, max_bytes, sizeof(inq)));
+
+	skcomp->num_returned_bytes =
+		be32_to_cpu(min_t(uint16_t, max_bytes, sizeof(inq)));
+}
+
+static void skd_do_driver_inq(struct skd_device *skdev,
+			      volatile struct fit_completion_entry_v1 *skcomp,
+			      volatile struct fit_comp_error_info *skerr,
+			      uint8_t *cdb, uint8_t *buf)
+{
+	if (!buf)
+		return;
+	else if (cdb[0] != INQUIRY)
+		return;         /* Not an INQUIRY */
+	else if ((cdb[1] & 1) == 0)
+		return;         /* EVPD not set */
+	else if (cdb[2] == 0)
+		/* Need to add driver's page to supported pages list */
+		skd_do_inq_page_00(skdev, skcomp, skerr, cdb, buf);
+	else if (cdb[2] == DRIVER_INQ_EVPD_PAGE_CODE)
+		/* Caller requested driver's page */
+		skd_do_inq_page_da(skdev, skcomp, skerr, cdb, buf);
+}
+
+static unsigned char *skd_sg_1st_page_ptr(struct scatterlist *sg)
+{
+	if (!sg)
+		return NULL;
+	if (!sg_page(sg))
+		return NULL;
+	return sg_virt(sg);
+}
+
+static void skd_process_scsi_inq(struct skd_device *skdev,
+				 volatile struct fit_completion_entry_v1
+				 *skcomp,
+				 volatile struct fit_comp_error_info *skerr,
+				 struct skd_special_context *skspcl)
+{
+	uint8_t *buf;
+	struct fit_msg_hdr *fmh = (struct fit_msg_hdr *)skspcl->msg_buf;
+	struct skd_scsi_request *scsi_req = (struct skd_scsi_request *)&fmh[1];
+
+	dma_sync_sg_for_cpu(skdev->class_dev, skspcl->req.sg, skspcl->req.n_sg,
+			    skspcl->req.sg_data_dir);
+	buf = skd_sg_1st_page_ptr(skspcl->req.sg);
+
+	if (buf)
+		skd_do_driver_inq(skdev, skcomp, skerr, scsi_req->cdb, buf);
+}
+
+
+static int skd_isr_completion_posted(struct skd_device *skdev,
+					int limit, int *enqueued)
+{
+	volatile struct fit_completion_entry_v1 *skcmp = NULL;
+	volatile struct fit_comp_error_info *skerr;
+	u16 req_id;
+	u32 req_slot;
+	struct skd_request_context *skreq;
+	u16 cmp_cntxt = 0;
+	u8 cmp_status = 0;
+	u8 cmp_cycle = 0;
+	u32 cmp_bytes = 0;
+	int rc = 0;
+	int processed = 0;
+	int ret;
+
+
+	for (;; ) {
+		SKD_ASSERT(skdev->skcomp_ix < SKD_N_COMPLETION_ENTRY);
+
+		skcmp = &skdev->skcomp_table[skdev->skcomp_ix];
+		cmp_cycle = skcmp->cycle;
+		cmp_cntxt = skcmp->tag;
+		cmp_status = skcmp->status;
+		cmp_bytes = be32_to_cpu(skcmp->num_returned_bytes);
+
+		skerr = &skdev->skerr_table[skdev->skcomp_ix];
+
+		VPRINTK(skdev,
+			"cycle=%d ix=%d got cycle=%d cmdctxt=0x%x stat=%d "
+			"busy=%d rbytes=0x%x proto=%d\n", skdev->skcomp_cycle,
+			skdev->skcomp_ix, cmp_cycle, cmp_cntxt, cmp_status,
+			skdev->in_flight, cmp_bytes, skdev->proto_ver);
+
+		if (cmp_cycle != skdev->skcomp_cycle) {
+			VPRINTK(skdev, "end of completions\n");
+			break;
+		}
+		/*
+		 * Update the completion queue head index and possibly
+		 * the completion cycle count. 8-bit wrap-around.
+		 */
+		skdev->skcomp_ix++;
+		if (skdev->skcomp_ix >= SKD_N_COMPLETION_ENTRY) {
+			skdev->skcomp_ix = 0;
+			skdev->skcomp_cycle++;
+		}
+
+		/*
+		 * The command context is a unique 32-bit ID. The low order
+		 * bits help locate the request. The request is usually a
+		 * r/w request (see skd_start() above) or a special request.
+		 */
+		req_id = cmp_cntxt;
+		req_slot = req_id & SKD_ID_SLOT_AND_TABLE_MASK;
+
+		/* Is this other than a r/w request? */
+		if (req_slot >= skdev->num_req_context) {
+			/*
+			 * This is not a completion for a r/w request.
+			 */
+			skd_complete_other(skdev, skcmp, skerr);
+			continue;
+		}
+
+		skreq = &skdev->skreq_table[req_slot];
+
+		/*
+		 * Make sure the request ID for the slot matches.
+		 */
+		if (skreq->id != req_id) {
+			DPRINTK(skdev, "mismatch comp_id=0x%x req_id=0x%x\n",
+				req_id, skreq->id);
+			{
+				u16 new_id = cmp_cntxt;
+				pr_err("(%s): Completion mismatch "
+				       "comp_id=0x%04x skreq=0x%04x new=0x%04x\n",
+				       skd_name(skdev), req_id,
+				       skreq->id, new_id);
+
+				continue;
+			}
+		}
+
+		SKD_ASSERT(skreq->state == SKD_REQ_STATE_BUSY);
+
+		if (skreq->state == SKD_REQ_STATE_ABORTED) {
+			DPRINTK(skdev, "reclaim req %p id=%04x\n",
+				skreq, skreq->id);
+			/* a previously timed out command can
+			 * now be cleaned up */
+			skd_release_skreq(skdev, skreq);
+			continue;
+		}
+
+		skreq->completion = *skcmp;
+		if (unlikely(cmp_status == SAM_STAT_CHECK_CONDITION)) {
+			skreq->err_info = *skerr;
+			skd_log_check_status(skdev, cmp_status, skerr->key,
+					     skerr->code, skerr->qual,
+					     skerr->fruc);
+		}
+		/* Release DMA resources for the request. */
+		if (skreq->n_sg > 0)
+			skd_postop_sg_list(skdev, skreq);
+
+		if (((!skd_bio) && !skreq->req) ||
+		    ((skd_bio) && !skreq->bio)) {
+			DPRINTK(skdev, "NULL backptr skdreq %p, "
+				"req=0x%x req_id=0x%x\n",
+				skreq, skreq->id, req_id);
+		} else {
+			/*
+			 * Capture the outcome and post it back to the
+			 * native request.
+			 */
+			if (likely(cmp_status == SAM_STAT_GOOD)) {
+				if (unlikely(skreq->flush_cmd)) {
+					if (skd_bio) {
+						/* if empty size bio, we are all done */
+						if (bio_sectors(skreq->bio) == 0) {
+							skd_end_request(skdev, skreq, 0);
+						} else {
+							ret = skd_flush_cmd_enqueue(skdev, (void *)skreq->bio);
+							if (ret != 0) {
+								pr_err("Failed to enqueue flush bio with Data. Err=%d.\n", ret);
+								skd_end_request(skdev, skreq, ret);
+							} else {
+								((*enqueued)++);
+							}
+						}
+					} else {
+						skd_end_request(skdev, skreq, 0);
+					}
+				} else {
+					skd_end_request(skdev, skreq, 0);
+				}
+			} else {
+				skd_resolve_req_exception(skdev, skreq);
+			}
+		}
+
+		/*
+		 * Release the skreq, its FIT msg (if one), timeout slot,
+		 * and queue depth.
+		 */
+		skd_release_skreq(skdev, skreq);
+
+		/* skd_isr_comp_limit equal zero means no limit */
+		if (limit) {
+			if (++processed >= limit) {
+				rc = 1;
+				break;
+			}
+		}
+	}
+
+	if ((skdev->state == SKD_DRVR_STATE_PAUSING)
+		&& (skdev->in_flight) == 0) {
+		skdev->state = SKD_DRVR_STATE_PAUSED;
+		wake_up_interruptible(&skdev->waitq);
+	}
+
+	return rc;
+}
+
+static void skd_complete_other(struct skd_device *skdev,
+			       volatile struct fit_completion_entry_v1 *skcomp,
+			       volatile struct fit_comp_error_info *skerr)
+{
+	u32 req_id = 0;
+	u32 req_table;
+	u32 req_slot;
+	struct skd_special_context *skspcl;
+
+	req_id = skcomp->tag;
+	req_table = req_id & SKD_ID_TABLE_MASK;
+	req_slot = req_id & SKD_ID_SLOT_MASK;
+
+	DPRINTK(skdev, "table=0x%x id=0x%x slot=%d\n", req_table, req_id,
+		req_slot);
+
+	/*
+	 * Based on the request id, determine how to dispatch this completion.
+	 * This swich/case is finding the good cases and forwarding the
+	 * completion entry. Errors are reported below the switch.
+	 */
+	switch (req_table) {
+	case SKD_ID_RW_REQUEST:
+		/*
+		 * The caller, skd_completion_posted_isr() above,
+		 * handles r/w requests. The only way we get here
+		 * is if the req_slot is out of bounds.
+		 */
+		break;
+
+	case SKD_ID_SPECIAL_REQUEST:
+		/*
+		 * Make sure the req_slot is in bounds and that the id
+		 * matches.
+		 */
+		if (req_slot < skdev->n_special) {
+			skspcl = &skdev->skspcl_table[req_slot];
+			if (skspcl->req.id == req_id &&
+			    skspcl->req.state == SKD_REQ_STATE_BUSY) {
+				skd_complete_special(skdev,
+						     skcomp, skerr, skspcl);
+				return;
+			}
+		}
+		break;
+
+	case SKD_ID_INTERNAL:
+		if (req_slot == 0) {
+			skspcl = &skdev->internal_skspcl;
+			if (skspcl->req.id == req_id &&
+			    skspcl->req.state == SKD_REQ_STATE_BUSY) {
+				skd_complete_internal(skdev,
+						      skcomp, skerr, skspcl);
+				return;
+			}
+		}
+		break;
+
+	case SKD_ID_FIT_MSG:
+		/*
+		 * These id's should never appear in a completion record.
+		 */
+		break;
+
+	default:
+		/*
+		 * These id's should never appear anywhere;
+		 */
+		break;
+	}
+
+	/*
+	 * If we get here it is a bad or stale id.
+	 */
+}
+
+static void skd_complete_special(struct skd_device *skdev,
+				 volatile struct fit_completion_entry_v1
+				 *skcomp,
+				 volatile struct fit_comp_error_info *skerr,
+				 struct skd_special_context *skspcl)
+{
+	DPRINTK(skdev, " completing special request %p\n", skspcl);
+	if (skspcl->orphaned) {
+		/* Discard orphaned request */
+		/* ?: Can this release directly or does it need
+		 * to use a worker? */
+		DPRINTK(skdev, "release orphaned %p\n", skspcl);
+		skd_release_special(skdev, skspcl);
+		return;
+	}
+
+	skd_process_scsi_inq(skdev, skcomp, skerr, skspcl);
+
+	skspcl->req.state = SKD_REQ_STATE_COMPLETED;
+	skspcl->req.completion = *skcomp;
+	skspcl->req.err_info = *skerr;
+
+	skd_log_check_status(skdev, skspcl->req.completion.status, skerr->key,
+			     skerr->code, skerr->qual, skerr->fruc);
+
+	wake_up_interruptible(&skdev->waitq);
+}
+
+/* assume spinlock is already held */
+static void skd_release_special(struct skd_device *skdev,
+				struct skd_special_context *skspcl)
+{
+	int i, was_depleted;
+
+	for (i = 0; i < skspcl->req.n_sg; i++) {
+
+		struct page *page = sg_page(&skspcl->req.sg[i]);
+		__free_page(page);
+	}
+
+	was_depleted = (skdev->skspcl_free_list == NULL);
+
+	skspcl->req.state = SKD_REQ_STATE_IDLE;
+	skspcl->req.id += SKD_ID_INCR;
+	skspcl->req.next =
+		(struct skd_request_context *)skdev->skspcl_free_list;
+	skdev->skspcl_free_list = (struct skd_special_context *)skspcl;
+
+	if (was_depleted) {
+		DPRINTK(skdev, "skspcl was depleted\n");
+		/* Free list was depleted. Their might be waiters. */
+		wake_up_interruptible(&skdev->waitq);
+	}
+}
+
+static void skd_reset_skcomp(struct skd_device *skdev)
+{
+	u32 nbytes;
+	struct fit_completion_entry_v1 *skcomp;
+
+	nbytes = sizeof(*skcomp) * SKD_N_COMPLETION_ENTRY;
+	nbytes += sizeof(struct fit_comp_error_info) * SKD_N_COMPLETION_ENTRY;
+
+	memset(skdev->skcomp_table, 0, nbytes);
+
+	skdev->skcomp_ix = 0;
+	skdev->skcomp_cycle = 1;
+}
+
+/*
+ *****************************************************************************
+ * INTERRUPTS
+ *****************************************************************************
+ */
+static void skd_completion_worker(struct work_struct *work)
+{
+	struct skd_device *skdev =
+		container_of(work, struct skd_device, completion_worker);
+	unsigned long flags;
+	int flush_enqueued = 0;
+
+	spin_lock_irqsave(&skdev->lock, flags);
+
+	/*
+	 * pass in limit=0, which means no limit..
+	 * process everything in compq
+	 */
+	skd_isr_completion_posted(skdev, 0, &flush_enqueued);
+	skd_request_fn(skdev->queue);
+
+	spin_unlock_irqrestore(&skdev->lock, flags);
+}
+
+static void skd_isr_msg_from_dev(struct skd_device *skdev);
+
+irqreturn_t
+static skd_isr(int irq, void *ptr)
+{
+	struct skd_device *skdev;
+	u32 intstat;
+	u32 ack;
+	int rc = 0;
+	int deferred = 0;
+	int flush_enqueued = 0;
+
+	skdev = (struct skd_device *)ptr;
+	spin_lock(&skdev->lock);
+
+	for (;; ) {
+		intstat = SKD_READL(skdev, FIT_INT_STATUS_HOST);
+
+		ack = FIT_INT_DEF_MASK;
+		ack &= intstat;
+
+		VPRINTK(skdev, "intstat=0x%x ack=0x%x\n", intstat, ack);
+
+		/* As long as there is an int pending on device, keep
+		 * running loop.  When none, get out, but if we've never
+		 * done any processing, call completion handler?
+		 */
+		if (ack == 0) {
+			/* No interrupts on device, but run the completion
+			 * processor anyway?
+			 */
+			if (rc == 0)
+				if (likely (skdev->state
+					== SKD_DRVR_STATE_ONLINE))
+					deferred = 1;
+			break;
+		}
+
+		rc = IRQ_HANDLED;
+
+		SKD_WRITEL(skdev, ack, FIT_INT_STATUS_HOST);
+
+		if (likely((skdev->state != SKD_DRVR_STATE_LOAD) &&
+			   (skdev->state != SKD_DRVR_STATE_STOPPING))) {
+			if (intstat & FIT_ISH_COMPLETION_POSTED) {
+				/*
+				 * If we have already deferred completion
+				 * processing, don't bother running it again
+				 */
+				if (deferred == 0)
+					deferred =
+						skd_isr_completion_posted(skdev,
+						skd_isr_comp_limit, &flush_enqueued);
+			}
+
+			if (intstat & FIT_ISH_FW_STATE_CHANGE) {
+				skd_isr_fwstate(skdev);
+				if (skdev->state == SKD_DRVR_STATE_FAULT ||
+				    skdev->state ==
+				    SKD_DRVR_STATE_DISAPPEARED) {
+					spin_unlock(&skdev->lock);
+					return rc;
+				}
+			}
+
+			if (intstat & FIT_ISH_MSG_FROM_DEV)
+				skd_isr_msg_from_dev(skdev);
+		}
+	}
+
+	if (unlikely(flush_enqueued))
+		skd_request_fn(skdev->queue);
+
+	if (deferred)
+		schedule_work(&skdev->completion_worker);
+	else if (!flush_enqueued)
+		skd_request_fn(skdev->queue);
+
+	spin_unlock(&skdev->lock);
+
+	return rc;
+}
+
+
+static void skd_drive_fault(struct skd_device *skdev)
+{
+	skdev->state = SKD_DRVR_STATE_FAULT;
+	pr_err("(%s): Drive FAULT\n", skd_name(skdev));
+}
+
+static void skd_drive_disappeared(struct skd_device *skdev)
+{
+	skdev->state = SKD_DRVR_STATE_DISAPPEARED;
+	pr_err("(%s): Drive DISAPPEARED\n", skd_name(skdev));
+}
+
+static void skd_isr_fwstate(struct skd_device *skdev)
+{
+	u32 sense;
+	u32 state;
+	u32 mtd;
+	int prev_driver_state = skdev->state;
+
+	sense = SKD_READL(skdev, FIT_STATUS);
+	state = sense & FIT_SR_DRIVE_STATE_MASK;
+
+	pr_err("(%s): s1120 state %s(%d)=>%s(%d)\n",
+	       skd_name(skdev),
+	       skd_drive_state_to_str(skdev->drive_state), skdev->drive_state,
+	       skd_drive_state_to_str(state), state);
+
+	skdev->drive_state = state;
+
+	switch (skdev->drive_state) {
+	case FIT_SR_DRIVE_INIT:
+		if (skdev->state == SKD_DRVR_STATE_PROTOCOL_MISMATCH) {
+			skd_disable_interrupts(skdev);
+			break;
+		}
+		if (skdev->state == SKD_DRVR_STATE_RESTARTING)
+			skd_recover_requests(skdev, 0);
+		if (skdev->state == SKD_DRVR_STATE_WAIT_BOOT) {
+			skdev->timer_countdown = SKD_STARTING_TIMO;
+			skdev->state = SKD_DRVR_STATE_STARTING;
+			skd_soft_reset(skdev);
+			break;
+		}
+		mtd = FIT_MXD_CONS(FIT_MTD_FITFW_INIT, 0, 0);
+		SKD_WRITEL(skdev, mtd, FIT_MSG_TO_DEVICE);
+		skdev->last_mtd = mtd;
+		break;
+
+	case FIT_SR_DRIVE_ONLINE:
+		skdev->cur_max_queue_depth = skd_max_queue_depth;
+		if (skdev->cur_max_queue_depth > skdev->dev_max_queue_depth)
+			skdev->cur_max_queue_depth = skdev->dev_max_queue_depth;
+
+		skdev->queue_low_water_mark =
+			skdev->cur_max_queue_depth * 2 / 3 + 1;
+		if (skdev->queue_low_water_mark < 1)
+			skdev->queue_low_water_mark = 1;
+		pr_info(
+		       "(%s): Queue depth limit=%d dev=%d lowat=%d\n",
+		       skd_name(skdev),
+		       skdev->cur_max_queue_depth,
+		       skdev->dev_max_queue_depth, skdev->queue_low_water_mark);
+
+		skd_refresh_device_data(skdev);
+		break;
+
+	case FIT_SR_DRIVE_BUSY:
+		skdev->state = SKD_DRVR_STATE_BUSY;
+		skdev->timer_countdown = SKD_BUSY_TIMO;
+		skd_quiesce_dev(skdev);
+		break;
+	case FIT_SR_DRIVE_BUSY_SANITIZE:
+		/* set timer for 3 seconds, we'll abort any unfinished
+		 * commands after that expires
+		 */
+		skdev->state = SKD_DRVR_STATE_BUSY_SANITIZE;
+		skdev->timer_countdown = SKD_TIMER_SECONDS(3);
+		skd_start_queue(skdev);
+		break;
+	case FIT_SR_DRIVE_BUSY_ERASE:
+		skdev->state = SKD_DRVR_STATE_BUSY_ERASE;
+		skdev->timer_countdown = SKD_BUSY_TIMO;
+		break;
+	case FIT_SR_DRIVE_OFFLINE:
+		skdev->state = SKD_DRVR_STATE_IDLE;
+		break;
+	case FIT_SR_DRIVE_SOFT_RESET:
+		switch (skdev->state) {
+		case SKD_DRVR_STATE_STARTING:
+		case SKD_DRVR_STATE_RESTARTING:
+			/* Expected by a caller of skd_soft_reset() */
+			break;
+		default:
+			skdev->state = SKD_DRVR_STATE_RESTARTING;
+			break;
+		}
+		break;
+	case FIT_SR_DRIVE_FW_BOOTING:
+		VPRINTK(skdev, "ISR FIT_SR_DRIVE_FW_BOOTING %s\n", skdev->name);
+		skdev->state = SKD_DRVR_STATE_WAIT_BOOT;
+		skdev->timer_countdown = SKD_WAIT_BOOT_TIMO;
+		break;
+
+	case FIT_SR_DRIVE_DEGRADED:
+	case FIT_SR_PCIE_LINK_DOWN:
+	case FIT_SR_DRIVE_NEED_FW_DOWNLOAD:
+		break;
+
+	case FIT_SR_DRIVE_FAULT:
+		skd_drive_fault(skdev);
+		skd_recover_requests(skdev, 0);
+		skd_start_queue(skdev);
+		break;
+
+	/* PCIe bus returned all Fs? */
+	case 0xFF:
+		pr_info("(%s): state=0x%x sense=0x%x\n",
+		       skd_name(skdev), state, sense);
+		skd_drive_disappeared(skdev);
+		skd_recover_requests(skdev, 0);
+		skd_start_queue(skdev);
+		break;
+	default:
+		/*
+		 * Uknown FW State. Wait for a state we recognize.
+		 */
+		break;
+	}
+	pr_err("(%s): Driver state %s(%d)=>%s(%d)\n",
+	       skd_name(skdev),
+	       skd_skdev_state_to_str(prev_driver_state), prev_driver_state,
+	       skd_skdev_state_to_str(skdev->state), skdev->state);
+}
+
+static void skd_recover_requests(struct skd_device *skdev, int requeue)
+{
+	int i;
+
+	for (i = 0; i < skdev->num_req_context; i++) {
+		struct skd_request_context *skreq = &skdev->skreq_table[i];
+
+		if (skreq->state == SKD_REQ_STATE_BUSY) {
+			skd_log_skreq(skdev, skreq, "recover");
+
+			SKD_ASSERT((skreq->id & SKD_ID_INCR) != 0);
+			if (!skd_bio)
+				SKD_ASSERT(skreq->req != NULL);
+			else
+				SKD_ASSERT(skreq->bio != NULL);
+
+			/* Release DMA resources for the request. */
+			if (skreq->n_sg > 0)
+				skd_postop_sg_list(skdev, skreq);
+
+			if (!skd_bio) {
+				if (requeue &&
+				    (unsigned long) ++skreq->req->special <
+				    SKD_MAX_RETRIES)
+					skd_requeue_request(skdev, skreq);
+				else
+				skd_end_request(skdev, skreq, -EIO);
+			} else
+				skd_end_request(skdev, skreq, -EIO);
+
+			if (!skd_bio)
+				skreq->req = NULL;
+			else
+				skreq->bio = NULL;
+
+			skreq->state = SKD_REQ_STATE_IDLE;
+			skreq->id += SKD_ID_INCR;
+
+
+		}
+		if (i > 0)
+			skreq[-1].next = skreq;
+		skreq->next = NULL;
+	}
+	skdev->skreq_free_list = skdev->skreq_table;
+
+	for (i = 0; i < skdev->num_fitmsg_context; i++) {
+		struct skd_fitmsg_context *skmsg = &skdev->skmsg_table[i];
+
+		if (skmsg->state == SKD_MSG_STATE_BUSY) {
+			skd_log_skmsg(skdev, skmsg, "salvaged");
+			SKD_ASSERT((skmsg->id & SKD_ID_INCR) != 0);
+			skmsg->state = SKD_MSG_STATE_IDLE;
+			skmsg->id += SKD_ID_INCR;
+		}
+		if (i > 0)
+			skmsg[-1].next = skmsg;
+		skmsg->next = NULL;
+	}
+	skdev->skmsg_free_list = skdev->skmsg_table;
+
+	for (i = 0; i < skdev->n_special; i++) {
+		struct skd_special_context *skspcl = &skdev->skspcl_table[i];
+
+		/* If orphaned, reclaim it because it has already been reported
+		 * to the process as an error (it was just waiting for
+		 * a completion that didn't come, and now it will never come)
+		 * If busy, change to a state that will cause it to error
+		 * out in the wait routine and let it do the normal
+		 * reporting and reclaiming
+		 */
+		if (skspcl->req.state == SKD_REQ_STATE_BUSY) {
+			if (skspcl->orphaned) {
+				DPRINTK(skdev, "orphaned %p\n", skspcl);
+				skd_release_special(skdev, skspcl);
+			} else {
+				DPRINTK(skdev, "not orphaned %p\n", skspcl);
+				skspcl->req.state = SKD_REQ_STATE_ABORTED;
+			}
+		}
+	}
+	skdev->skspcl_free_list = skdev->skspcl_table;
+
+	for (i = 0; i < SKD_N_TIMEOUT_SLOT; i++)
+		skdev->timeout_slot[i] = 0;
+
+	skdev->in_flight = 0;
+}
+
+static void skd_isr_msg_from_dev(struct skd_device *skdev)
+{
+	u32 mfd;
+	u32 mtd;
+	u32 data;
+
+	mfd = SKD_READL(skdev, FIT_MSG_FROM_DEVICE);
+
+	DPRINTK(skdev, "mfd=0x%x last_mtd=0x%x\n", mfd, skdev->last_mtd);
+
+	/* ignore any mtd that is an ack for something we didn't send */
+	if (FIT_MXD_TYPE(mfd) != FIT_MXD_TYPE(skdev->last_mtd))
+		return;
+
+	switch (FIT_MXD_TYPE(mfd)) {
+	case FIT_MTD_FITFW_INIT:
+		skdev->proto_ver = FIT_PROTOCOL_MAJOR_VER(mfd);
+
+		if (skdev->proto_ver != FIT_PROTOCOL_VERSION_1) {
+			pr_err("(%s): protocol mismatch\n",
+			       skdev->name);
+			pr_err("(%s):   got=%d support=%d\n",
+			       skdev->name, skdev->proto_ver,
+			       FIT_PROTOCOL_VERSION_1);
+			pr_err("(%s):   please upgrade driver\n",
+			       skdev->name);
+			skdev->state = SKD_DRVR_STATE_PROTOCOL_MISMATCH;
+			skd_soft_reset(skdev);
+			break;
+		}
+		mtd = FIT_MXD_CONS(FIT_MTD_GET_CMDQ_DEPTH, 0, 0);
+		SKD_WRITEL(skdev, mtd, FIT_MSG_TO_DEVICE);
+		skdev->last_mtd = mtd;
+		break;
+
+	case FIT_MTD_GET_CMDQ_DEPTH:
+		skdev->dev_max_queue_depth = FIT_MXD_DATA(mfd);
+		mtd = FIT_MXD_CONS(FIT_MTD_SET_COMPQ_DEPTH, 0,
+				   SKD_N_COMPLETION_ENTRY);
+		SKD_WRITEL(skdev, mtd, FIT_MSG_TO_DEVICE);
+		skdev->last_mtd = mtd;
+		break;
+
+	case FIT_MTD_SET_COMPQ_DEPTH:
+		SKD_WRITEQ(skdev, skdev->cq_dma_address, FIT_MSG_TO_DEVICE_ARG);
+		mtd = FIT_MXD_CONS(FIT_MTD_SET_COMPQ_ADDR, 0, 0);
+		SKD_WRITEL(skdev, mtd, FIT_MSG_TO_DEVICE);
+		skdev->last_mtd = mtd;
+		break;
+
+	case FIT_MTD_SET_COMPQ_ADDR:
+		skd_reset_skcomp(skdev);
+		mtd = FIT_MXD_CONS(FIT_MTD_CMD_LOG_HOST_ID, 0, skdev->devno);
+		SKD_WRITEL(skdev, mtd, FIT_MSG_TO_DEVICE);
+		skdev->last_mtd = mtd;
+		break;
+
+	case FIT_MTD_CMD_LOG_HOST_ID:
+		skdev->connect_time_stamp = get_seconds();
+		data = skdev->connect_time_stamp & 0xFFFF;
+		mtd = FIT_MXD_CONS(FIT_MTD_CMD_LOG_TIME_STAMP_LO, 0, data);
+		SKD_WRITEL(skdev, mtd, FIT_MSG_TO_DEVICE);
+		skdev->last_mtd = mtd;
+		break;
+
+	case FIT_MTD_CMD_LOG_TIME_STAMP_LO:
+		skdev->drive_jiffies = FIT_MXD_DATA(mfd);
+		data = (skdev->connect_time_stamp >> 16) & 0xFFFF;
+		mtd = FIT_MXD_CONS(FIT_MTD_CMD_LOG_TIME_STAMP_HI, 0, data);
+		SKD_WRITEL(skdev, mtd, FIT_MSG_TO_DEVICE);
+		skdev->last_mtd = mtd;
+		break;
+
+	case FIT_MTD_CMD_LOG_TIME_STAMP_HI:
+		skdev->drive_jiffies |= (FIT_MXD_DATA(mfd) << 16);
+		mtd = FIT_MXD_CONS(FIT_MTD_ARM_QUEUE, 0, 0);
+		SKD_WRITEL(skdev, mtd, FIT_MSG_TO_DEVICE);
+		skdev->last_mtd = mtd;
+
+		pr_err("(%s): Time sync driver=0x%x device=0x%x\n",
+		       skd_name(skdev),
+		       skdev->connect_time_stamp, skdev->drive_jiffies);
+		break;
+
+	case FIT_MTD_ARM_QUEUE:
+		skdev->last_mtd = 0;
+		/*
+		 * State should be, or soon will be, FIT_SR_DRIVE_ONLINE.
+		 */
+		break;
+
+	default:
+		break;
+	}
+}
+
+static void skd_disable_interrupts(struct skd_device *skdev)
+{
+	u32 sense;
+
+	sense = SKD_READL(skdev, FIT_CONTROL);
+	sense &= ~FIT_CR_ENABLE_INTERRUPTS;
+	SKD_WRITEL(skdev, sense, FIT_CONTROL);
+	DPRINTK(skdev, "sense 0x%x\n", sense);
+
+	/* Note that the 1s is written. A 1-bit means
+	 * disable, a 0 means enable.
+	 */
+	SKD_WRITEL(skdev, ~0, FIT_INT_MASK_HOST);
+}
+
+static void skd_enable_interrupts(struct skd_device *skdev)
+{
+	u32 val;
+
+	/* unmask interrupts first */
+	val = FIT_ISH_FW_STATE_CHANGE +
+	      FIT_ISH_COMPLETION_POSTED + FIT_ISH_MSG_FROM_DEV;
+
+	/* Note that the compliment of mask is written. A 1-bit means
+	 * disable, a 0 means enable. */
+	SKD_WRITEL(skdev, ~val, FIT_INT_MASK_HOST);
+	DPRINTK(skdev, "interrupt mask=0x%x\n", ~val);
+
+	val = SKD_READL(skdev, FIT_CONTROL);
+	val |= FIT_CR_ENABLE_INTERRUPTS;
+	DPRINTK(skdev, "control=0x%x\n", val);
+	SKD_WRITEL(skdev, val, FIT_CONTROL);
+}
+
+/*
+ *****************************************************************************
+ * START, STOP, RESTART, QUIESCE, UNQUIESCE
+ *****************************************************************************
+ */
+
+static void skd_soft_reset(struct skd_device *skdev)
+{
+	u32 val;
+
+	val = SKD_READL(skdev, FIT_CONTROL);
+	val |= (FIT_CR_SOFT_RESET);
+	DPRINTK(skdev, "control=0x%x\n", val);
+	SKD_WRITEL(skdev, val, FIT_CONTROL);
+}
+
+static void skd_start_device(struct skd_device *skdev)
+{
+	unsigned long flags;
+	u32 sense;
+	u32 state;
+
+	spin_lock_irqsave(&skdev->lock, flags);
+
+	/* ack all ghost interrupts */
+	SKD_WRITEL(skdev, FIT_INT_DEF_MASK, FIT_INT_STATUS_HOST);
+
+	sense = SKD_READL(skdev, FIT_STATUS);
+
+	DPRINTK(skdev, "initial status=0x%x\n", sense);
+
+	state = sense & FIT_SR_DRIVE_STATE_MASK;
+	skdev->drive_state = state;
+	skdev->last_mtd = 0;
+
+	skdev->state = SKD_DRVR_STATE_STARTING;
+	skdev->timer_countdown = SKD_STARTING_TIMO;
+
+	skd_enable_interrupts(skdev);
+
+	switch (skdev->drive_state) {
+	case FIT_SR_DRIVE_OFFLINE:
+		pr_err("(%s): Drive offline...\n", skd_name(skdev));
+		break;
+
+	case FIT_SR_DRIVE_FW_BOOTING:
+		VPRINTK(skdev, "FIT_SR_DRIVE_FW_BOOTING %s\n", skdev->name);
+		skdev->state = SKD_DRVR_STATE_WAIT_BOOT;
+		skdev->timer_countdown = SKD_WAIT_BOOT_TIMO;
+		break;
+
+	case FIT_SR_DRIVE_BUSY_SANITIZE:
+		pr_info("(%s): Start: BUSY_SANITIZE\n",
+		       skd_name(skdev));
+		skdev->state = SKD_DRVR_STATE_BUSY_SANITIZE;
+		skdev->timer_countdown = SKD_STARTED_BUSY_TIMO;
+		break;
+
+	case FIT_SR_DRIVE_BUSY_ERASE:
+		pr_info("(%s): Start: BUSY_ERASE\n", skd_name(skdev));
+		skdev->state = SKD_DRVR_STATE_BUSY_ERASE;
+		skdev->timer_countdown = SKD_STARTED_BUSY_TIMO;
+		break;
+
+	case FIT_SR_DRIVE_INIT:
+	case FIT_SR_DRIVE_ONLINE:
+		skd_soft_reset(skdev);
+		break;
+
+	case FIT_SR_DRIVE_BUSY:
+		pr_err("(%s): Drive Busy...\n", skd_name(skdev));
+		skdev->state = SKD_DRVR_STATE_BUSY;
+		skdev->timer_countdown = SKD_STARTED_BUSY_TIMO;
+		break;
+
+	case FIT_SR_DRIVE_SOFT_RESET:
+		pr_err("(%s) drive soft reset in prog\n",
+		       skd_name(skdev));
+		break;
+
+	case FIT_SR_DRIVE_FAULT:
+		/* Fault state is bad...soft reset won't do it...
+		 * Hard reset, maybe, but does it work on device?
+		 * For now, just fault so the system doesn't hang.
+		 */
+		skd_drive_fault(skdev);
+		/*start the queue so we can respond with error to requests */
+		VPRINTK(skdev, "starting %s queue\n", skdev->name);
+		skd_start_queue(skdev);
+		skdev->gendisk_on = -1;
+		wake_up_interruptible(&skdev->waitq);
+		break;
+
+	case 0xFF:
+		/* Most likely the device isn't there or isn't responding
+		 * to the BAR1 addresses. */
+		skd_drive_disappeared(skdev);
+		/*start the queue so we can respond with error to requests */
+		VPRINTK(skdev, "starting %s queue to error-out reqs\n",
+			skdev->name);
+		skd_start_queue(skdev);
+		skdev->gendisk_on = -1;
+		wake_up_interruptible(&skdev->waitq);
+		break;
+
+	default:
+		pr_err("(%s) Start: unknown state %x\n",
+		       skd_name(skdev), skdev->drive_state);
+		break;
+	}
+
+	state = SKD_READL(skdev, FIT_CONTROL);
+	DPRINTK(skdev, "FIT Control Status=0x%x\n", state);
+
+	state = SKD_READL(skdev, FIT_INT_STATUS_HOST);
+	DPRINTK(skdev, "Intr Status=0x%x\n", state);
+
+	state = SKD_READL(skdev, FIT_INT_MASK_HOST);
+	DPRINTK(skdev, "Intr Mask=0x%x\n", state);
+
+	state = SKD_READL(skdev, FIT_MSG_FROM_DEVICE);
+	DPRINTK(skdev, "Msg from Dev=0x%x\n", state);
+
+	state = SKD_READL(skdev, FIT_HW_VERSION);
+	DPRINTK(skdev, "HW version=0x%x\n", state);
+
+	spin_unlock_irqrestore(&skdev->lock, flags);
+}
+
+static void skd_stop_device(struct skd_device *skdev)
+{
+	unsigned long flags;
+	struct skd_special_context *skspcl = &skdev->internal_skspcl;
+	u32 dev_state;
+	int i;
+
+	spin_lock_irqsave(&skdev->lock, flags);
+
+	if (skdev->state != SKD_DRVR_STATE_ONLINE) {
+		pr_err("(%s): skd_stop_device not online no sync\n",
+		       skd_name(skdev));
+		goto stop_out;
+	}
+
+	if (skspcl->req.state != SKD_REQ_STATE_IDLE) {
+		pr_err("(%s): skd_stop_device no special\n",
+		       skd_name(skdev));
+		goto stop_out;
+	}
+
+	skdev->state = SKD_DRVR_STATE_SYNCING;
+	skdev->sync_done = 0;
+
+	skd_send_internal_skspcl(skdev, skspcl, SYNCHRONIZE_CACHE);
+
+	spin_unlock_irqrestore(&skdev->lock, flags);
+
+	wait_event_interruptible_timeout(skdev->waitq,
+					 (skdev->sync_done), (10 * HZ));
+
+	spin_lock_irqsave(&skdev->lock, flags);
+
+	switch (skdev->sync_done) {
+	case 0:
+		pr_err("(%s): skd_stop_device no sync\n",
+		       skd_name(skdev));
+		break;
+	case 1:
+		pr_err("(%s): skd_stop_device sync done\n",
+		       skd_name(skdev));
+		break;
+	default:
+		pr_err("(%s): skd_stop_device sync error\n",
+		       skd_name(skdev));
+	}
+
+stop_out:
+	skdev->state = SKD_DRVR_STATE_STOPPING;
+	spin_unlock_irqrestore(&skdev->lock, flags);
+
+	skd_kill_timer(skdev);
+
+	spin_lock_irqsave(&skdev->lock, flags);
+	skd_disable_interrupts(skdev);
+
+	/* ensure all ints on device are cleared */
+	/* soft reset the device to unload with a clean slate */
+	SKD_WRITEL(skdev, FIT_INT_DEF_MASK, FIT_INT_STATUS_HOST);
+	SKD_WRITEL(skdev, FIT_CR_SOFT_RESET, FIT_CONTROL);
+
+	spin_unlock_irqrestore(&skdev->lock, flags);
+
+	/* poll every 100ms, 1 second timeout */
+	for (i = 0; i < 10; i++) {
+		dev_state =
+			SKD_READL(skdev, FIT_STATUS) & FIT_SR_DRIVE_STATE_MASK;
+		if (dev_state == FIT_SR_DRIVE_INIT)
+			break;
+		set_current_state(TASK_INTERRUPTIBLE);
+		schedule_timeout(msecs_to_jiffies(100));
+	}
+
+	if (dev_state != FIT_SR_DRIVE_INIT)
+		pr_err("(%s): skd_stop_device state error 0x%02x\n",
+		       skd_name(skdev), dev_state);
+}
+
+/* assume spinlock is held */
+static void skd_restart_device(struct skd_device *skdev)
+{
+	u32 state;
+
+	/* ack all ghost interrupts */
+	SKD_WRITEL(skdev, FIT_INT_DEF_MASK, FIT_INT_STATUS_HOST);
+
+	state = SKD_READL(skdev, FIT_STATUS);
+
+	DPRINTK(skdev, "drive status=0x%x\n", state);
+
+	state &= FIT_SR_DRIVE_STATE_MASK;
+	skdev->drive_state = state;
+	skdev->last_mtd = 0;
+
+	skdev->state = SKD_DRVR_STATE_RESTARTING;
+	skdev->timer_countdown = SKD_RESTARTING_TIMO;
+
+	skd_soft_reset(skdev);
+}
+
+/* assume spinlock is held */
+static int skd_quiesce_dev(struct skd_device *skdev)
+{
+	int rc = 0;
+
+	switch (skdev->state) {
+	case SKD_DRVR_STATE_BUSY:
+	case SKD_DRVR_STATE_BUSY_IMMINENT:
+		VPRINTK(skdev, "stopping %s queue\n", skdev->name);
+		skd_stop_queue(skdev);
+		break;
+	case SKD_DRVR_STATE_ONLINE:
+	case SKD_DRVR_STATE_STOPPING:
+	case SKD_DRVR_STATE_SYNCING:
+	case SKD_DRVR_STATE_PAUSING:
+	case SKD_DRVR_STATE_PAUSED:
+	case SKD_DRVR_STATE_STARTING:
+	case SKD_DRVR_STATE_RESTARTING:
+	case SKD_DRVR_STATE_RESUMING:
+	default:
+		rc = -EINVAL;
+		VPRINTK(skdev, "state [%d] not implemented\n", skdev->state);
+	}
+	return rc;
+}
+
+/* assume spinlock is held */
+static int skd_unquiesce_dev(struct skd_device *skdev)
+{
+	int prev_driver_state = skdev->state;
+
+	skd_log_skdev(skdev, "unquiesce");
+	if (skdev->state == SKD_DRVR_STATE_ONLINE) {
+		DPRINTK(skdev, "**** device already ONLINE\n");
+		return 0;
+	}
+	if (skdev->drive_state != FIT_SR_DRIVE_ONLINE) {
+		/*
+		 * If there has been an state change to other than
+		 * ONLINE, we will rely on controller state change
+		 * to come back online and restart the queue.
+		 * The BUSY state means that driver is ready to
+		 * continue normal processing but waiting for controller
+		 * to become available.
+		 */
+		skdev->state = SKD_DRVR_STATE_BUSY;
+		DPRINTK(skdev, "drive BUSY state\n");
+		return 0;
+	}
+
+	/*
+	 * Drive has just come online, driver is either in startup,
+	 * paused performing a task, or bust waiting for hardware.
+	 */
+	switch (skdev->state) {
+	case SKD_DRVR_STATE_PAUSED:
+	case SKD_DRVR_STATE_BUSY:
+	case SKD_DRVR_STATE_BUSY_IMMINENT:
+	case SKD_DRVR_STATE_BUSY_ERASE:
+	case SKD_DRVR_STATE_STARTING:
+	case SKD_DRVR_STATE_RESTARTING:
+	case SKD_DRVR_STATE_FAULT:
+	case SKD_DRVR_STATE_IDLE:
+	case SKD_DRVR_STATE_LOAD:
+		skdev->state = SKD_DRVR_STATE_ONLINE;
+		pr_err("(%s): Driver state %s(%d)=>%s(%d)\n",
+		       skd_name(skdev),
+		       skd_skdev_state_to_str(prev_driver_state),
+		       prev_driver_state, skd_skdev_state_to_str(skdev->state),
+		       skdev->state);
+		DPRINTK(skdev, "**** device ONLINE...starting block queue\n");
+		VPRINTK(skdev, "starting %s queue\n", skdev->name);
+		pr_info("(%s): STEC s1120 ONLINE\n", skd_name(skdev));
+		skd_start_queue(skdev);
+		skdev->gendisk_on = 1;
+		wake_up_interruptible(&skdev->waitq);
+		break;
+
+	case SKD_DRVR_STATE_DISAPPEARED:
+	default:
+		DPRINTK(skdev, "**** driver state %d, not implemented \n",
+			skdev->state);
+		return -EBUSY;
+	}
+	return 0;
+}
+
+/*
+ *****************************************************************************
+ * PCIe MSI/MSI-X INTERRUPT HANDLERS
+ *****************************************************************************
+ */
+
+static irqreturn_t skd_reserved_isr(int irq, void *skd_host_data)
+{
+	struct skd_device *skdev = skd_host_data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&skdev->lock, flags);
+	VPRINTK(skdev, "MSIX = 0x%x\n", SKD_READL(skdev, FIT_INT_STATUS_HOST));
+	pr_err("(%s): MSIX reserved irq %d = 0x%x\n", skd_name(skdev),
+	       irq, SKD_READL(skdev, FIT_INT_STATUS_HOST));
+	SKD_WRITEL(skdev, FIT_INT_RESERVED_MASK, FIT_INT_STATUS_HOST);
+	spin_unlock_irqrestore(&skdev->lock, flags);
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t skd_statec_isr(int irq, void *skd_host_data)
+{
+	struct skd_device *skdev = skd_host_data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&skdev->lock, flags);
+	VPRINTK(skdev, "MSIX = 0x%x\n", SKD_READL(skdev, FIT_INT_STATUS_HOST));
+	SKD_WRITEL(skdev, FIT_ISH_FW_STATE_CHANGE, FIT_INT_STATUS_HOST);
+	skd_isr_fwstate(skdev);
+	spin_unlock_irqrestore(&skdev->lock, flags);
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t skd_comp_q(int irq, void *skd_host_data)
+{
+	struct skd_device *skdev = skd_host_data;
+	unsigned long flags;
+	int flush_enqueued = 0;
+	int deferred;
+
+	spin_lock_irqsave(&skdev->lock, flags);
+	VPRINTK(skdev, "MSIX = 0x%x\n", SKD_READL(skdev, FIT_INT_STATUS_HOST));
+	SKD_WRITEL(skdev, FIT_ISH_COMPLETION_POSTED, FIT_INT_STATUS_HOST);
+	deferred = skd_isr_completion_posted(skdev, skd_isr_comp_limit,
+						&flush_enqueued);
+
+	if (flush_enqueued)
+		skd_request_fn(skdev->queue);
+
+	if (deferred)
+		schedule_work(&skdev->completion_worker);
+	else if (!flush_enqueued)
+		skd_request_fn(skdev->queue);
+
+	spin_unlock_irqrestore(&skdev->lock, flags);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t skd_msg_isr(int irq, void *skd_host_data)
+{
+	struct skd_device *skdev = skd_host_data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&skdev->lock, flags);
+	VPRINTK(skdev, "MSIX = 0x%x\n", SKD_READL(skdev, FIT_INT_STATUS_HOST));
+	SKD_WRITEL(skdev, FIT_ISH_MSG_FROM_DEV, FIT_INT_STATUS_HOST);
+	skd_isr_msg_from_dev(skdev);
+	spin_unlock_irqrestore(&skdev->lock, flags);
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t skd_qfull_isr(int irq, void *skd_host_data)
+{
+	struct skd_device *skdev = skd_host_data;
+	unsigned long flags;
+
+	spin_lock_irqsave(&skdev->lock, flags);
+	VPRINTK(skdev, "MSIX = 0x%x\n", SKD_READL(skdev, FIT_INT_STATUS_HOST));
+	SKD_WRITEL(skdev, FIT_INT_QUEUE_FULL, FIT_INT_STATUS_HOST);
+	spin_unlock_irqrestore(&skdev->lock, flags);
+	return IRQ_HANDLED;
+}
+
+/*
+ *****************************************************************************
+ * PCIe MSI/MSI-X SETUP
+ *****************************************************************************
+ */
+
+struct skd_msix_entry {
+	int have_irq;
+	u32 vector;
+	u32 entry;
+	struct skd_device *rsp;
+	char isr_name[30];
+};
+
+struct skd_init_msix_entry {
+	const char *name;
+	irq_handler_t handler;
+};
+
+#define SKD_MAX_MSIX_COUNT              13
+#define SKD_MIN_MSIX_COUNT              7
+#define SKD_BASE_MSIX_IRQ               4
+
+static struct skd_init_msix_entry msix_entries[SKD_MAX_MSIX_COUNT] = {
+	{ "(DMA 0)",	    skd_reserved_isr },
+	{ "(DMA 1)",	    skd_reserved_isr },
+	{ "(DMA 2)",	    skd_reserved_isr },
+	{ "(DMA 3)",	    skd_reserved_isr },
+	{ "(State Change)", skd_statec_isr   },
+	{ "(COMPL_Q)",	    skd_comp_q	     },
+	{ "(MSG)",	    skd_msg_isr	     },
+	{ "(Reserved)",	    skd_reserved_isr },
+	{ "(Reserved)",	    skd_reserved_isr },
+	{ "(Queue Full 0)", skd_qfull_isr    },
+	{ "(Queue Full 1)", skd_qfull_isr    },
+	{ "(Queue Full 2)", skd_qfull_isr    },
+	{ "(Queue Full 3)", skd_qfull_isr    },
+};
+
+static void skd_release_msix(struct skd_device *skdev)
+{
+	struct skd_msix_entry *qentry;
+	int i;
+
+	if (skdev->msix_entries == NULL)
+		return;
+	for (i = 0; i < skdev->msix_count; i++) {
+		qentry = &skdev->msix_entries[i];
+		skdev = qentry->rsp;
+
+		if (qentry->have_irq)
+			devm_free_irq(&skdev->pdev->dev,
+				      qentry->vector, qentry->rsp);
+	}
+	pci_disable_msix(skdev->pdev);
+	kfree(skdev->msix_entries);
+	skdev->msix_count = 0;
+	skdev->msix_entries = NULL;
+}
+
+static int skd_acquire_msix(struct skd_device *skdev)
+{
+	int i, rc;
+	struct pci_dev *pdev;
+	struct msix_entry *entries = NULL;
+	struct skd_msix_entry *qentry;
+
+	pdev = skdev->pdev;
+	skdev->msix_count = SKD_MAX_MSIX_COUNT;
+	entries = kzalloc(sizeof(struct msix_entry) * SKD_MAX_MSIX_COUNT,
+			  GFP_KERNEL);
+	if (!entries)
+		return -ENOMEM;
+
+	for (i = 0; i < SKD_MAX_MSIX_COUNT; i++)
+		entries[i].entry = i;
+
+	rc = pci_enable_msix(pdev, entries, SKD_MAX_MSIX_COUNT);
+	if (rc < 0)
+		goto msix_out;
+	if (rc) {
+		if (rc < SKD_MIN_MSIX_COUNT) {
+			pr_err("(%s): failed to enable MSI-X %d\n",
+			       skd_name(skdev), rc);
+			goto msix_out;
+		}
+		DPRINTK(skdev, "%s: <%s> allocated %d MSI-X vectors\n",
+			pci_name(pdev), skdev->name, rc);
+
+		skdev->msix_count = rc;
+		rc = pci_enable_msix(pdev, entries, skdev->msix_count);
+		if (rc) {
+			pr_err("(%s): failed to enable MSI-X "
+			       "support (%d) %d\n",
+			       skd_name(skdev), skdev->msix_count, rc);
+			goto msix_out;
+		}
+	}
+	skdev->msix_entries = kzalloc(sizeof(struct skd_msix_entry) *
+				      skdev->msix_count, GFP_KERNEL);
+	if (!skdev->msix_entries) {
+		rc = -ENOMEM;
+		skdev->msix_count = 0;
+		pr_err("(%s): msix table allocation error\n",
+		       skd_name(skdev));
+		goto msix_out;
+	}
+
+	qentry = skdev->msix_entries;
+	for (i = 0; i < skdev->msix_count; i++) {
+		qentry->vector = entries[i].vector;
+		qentry->entry = entries[i].entry;
+		qentry->rsp = NULL;
+		qentry->have_irq = 0;
+		DPRINTK(skdev, "%s: <%s> msix (%d) vec %d, entry %x\n",
+			pci_name(pdev), skdev->name,
+			i, qentry->vector, qentry->entry);
+		qentry++;
+	}
+
+	/* Enable MSI-X vectors for the base queue */
+	for (i = 0; i < SKD_MAX_MSIX_COUNT; i++) {
+		qentry = &skdev->msix_entries[i];
+		snprintf(qentry->isr_name, sizeof(qentry->isr_name),
+			 "%s%d-msix %s", DRV_NAME, skdev->devno,
+			 msix_entries[i].name);
+		rc = devm_request_irq(&skdev->pdev->dev, qentry->vector,
+				      msix_entries[i].handler, 0,
+				      qentry->isr_name, skdev);
+		if (rc) {
+			pr_err("(%s): Unable to register(%d) MSI-X "
+			       "handler %d: %s\n",
+			       skd_name(skdev), rc, i, qentry->isr_name);
+			goto msix_out;
+		} else {
+			qentry->have_irq = 1;
+			qentry->rsp = skdev;
+		}
+	}
+	DPRINTK(skdev, "%s: <%s> msix %d irq(s) enabled\n",
+		pci_name(pdev), skdev->name, skdev->msix_count);
+	return 0;
+
+msix_out:
+	if (entries)
+		kfree(entries);
+	skd_release_msix(skdev);
+	return rc;
+}
+
+static int skd_acquire_irq(struct skd_device *skdev)
+{
+	int rc;
+	struct pci_dev *pdev;
+
+	pdev = skdev->pdev;
+	skdev->msix_count = 0;
+
+RETRY_IRQ_TYPE:
+	switch (skdev->irq_type) {
+	case SKD_IRQ_MSIX:
+		rc = skd_acquire_msix(skdev);
+		if (!rc)
+			pr_info("(%s): MSI-X %d irqs enabled\n",
+			       skd_name(skdev), skdev->msix_count);
+		else {
+			pr_err(
+			       "(%s): failed to enable MSI-X, re-trying with MSI %d\n",
+			       skd_name(skdev), rc);
+			skdev->irq_type = SKD_IRQ_MSI;
+			goto RETRY_IRQ_TYPE;
+		}
+		break;
+	case SKD_IRQ_MSI:
+		snprintf(skdev->isr_name, sizeof(skdev->isr_name), "%s%d-msi",
+			 DRV_NAME, skdev->devno);
+		rc = pci_enable_msi(pdev);
+		if (!rc) {
+			rc = devm_request_irq(&pdev->dev, pdev->irq, skd_isr, 0,
+					      skdev->isr_name, skdev);
+			if (rc) {
+				pci_disable_msi(pdev);
+				pr_err(
+				       "(%s): failed to allocate the MSI interrupt %d\n",
+				       skd_name(skdev), rc);
+				goto RETRY_IRQ_LEGACY;
+			}
+			pr_info("(%s): MSI irq %d enabled\n",
+			       skd_name(skdev), pdev->irq);
+		} else {
+RETRY_IRQ_LEGACY:
+			pr_err(
+			       "(%s): failed to enable MSI, re-trying with LEGACY %d\n",
+			       skd_name(skdev), rc);
+			skdev->irq_type = SKD_IRQ_LEGACY;
+			goto RETRY_IRQ_TYPE;
+		}
+		break;
+	case SKD_IRQ_LEGACY:
+		snprintf(skdev->isr_name, sizeof(skdev->isr_name),
+			 "%s%d-legacy", DRV_NAME, skdev->devno);
+		rc = devm_request_irq(&pdev->dev, pdev->irq, skd_isr,
+				      IRQF_SHARED, skdev->isr_name, skdev);
+		if (!rc)
+			pr_info("(%s): LEGACY irq %d enabled\n",
+			       skd_name(skdev), pdev->irq);
+		else
+			pr_err("(%s): request LEGACY irq error %d\n",
+			       skd_name(skdev), rc);
+		break;
+	default:
+		pr_info("(%s): irq_type %d invalid, re-set to %d\n",
+		       skd_name(skdev), skdev->irq_type, SKD_IRQ_DEFAULT);
+		skdev->irq_type = SKD_IRQ_LEGACY;
+		goto RETRY_IRQ_TYPE;
+	}
+	return rc;
+}
+
+static void skd_release_irq(struct skd_device *skdev)
+{
+	switch (skdev->irq_type) {
+	case SKD_IRQ_MSIX:
+		skd_release_msix(skdev);
+		break;
+	case SKD_IRQ_MSI:
+		devm_free_irq(&skdev->pdev->dev, skdev->pdev->irq, skdev);
+		pci_disable_msi(skdev->pdev);
+		break;
+	case SKD_IRQ_LEGACY:
+		devm_free_irq(&skdev->pdev->dev, skdev->pdev->irq, skdev);
+		break;
+	default:
+		pr_err("(%s): wrong irq type %d!",
+		       skd_name(skdev), skdev->irq_type);
+		break;
+	}
+}
+
+/*
+ *****************************************************************************
+ * CONSTRUCT
+ *****************************************************************************
+ */
+
+static int skd_cons_skcomp(struct skd_device *skdev);
+static int skd_cons_skmsg(struct skd_device *skdev);
+static int skd_cons_skreq(struct skd_device *skdev);
+static int skd_cons_skspcl(struct skd_device *skdev);
+static int skd_cons_sksb(struct skd_device *skdev);
+static struct fit_sg_descriptor *skd_cons_sg_list(struct skd_device *skdev,
+						  u32 n_sg,
+						  dma_addr_t *ret_dma_addr);
+static int skd_cons_disk(struct skd_device *skdev);
+
+#define SKD_N_DEV_TABLE         16u
+static u32 skd_next_devno;
+
+static struct skd_device *skd_construct(struct pci_dev *pdev)
+{
+	struct skd_device *skdev;
+	int blk_major = skd_major;
+	int rc;
+
+	skdev = kzalloc(sizeof(*skdev), GFP_KERNEL);
+
+	if (!skdev) {
+		pr_err(PFX "(%s): memory alloc failure\n",
+		       pci_name(pdev));
+		return NULL;
+	}
+
+	skdev->state = SKD_DRVR_STATE_LOAD;
+	skdev->pdev = pdev;
+	skdev->devno = skd_next_devno++;
+	skdev->major = blk_major;
+	skdev->irq_type = skd_isr_type;
+	sprintf(skdev->name, DRV_NAME "%d", skdev->devno);
+	skdev->dev_max_queue_depth = 0;
+
+	skdev->num_req_context = skd_max_queue_depth;
+	skdev->num_fitmsg_context = skd_max_queue_depth;
+	skdev->n_special = skd_max_pass_thru;
+	skdev->cur_max_queue_depth = 1;
+	skdev->queue_low_water_mark = 1;
+	skdev->proto_ver = 99;
+	skdev->sgs_per_request = skd_sgs_per_request;
+	skdev->dbg_level = skd_dbg_level;
+
+	if (skd_bio)
+		bio_list_init(&skdev->bio_queue);
+
+
+	atomic_set(&skdev->device_count, 0);
+
+	spin_lock_init(&skdev->lock);
+
+	INIT_WORK(&skdev->completion_worker, skd_completion_worker);
+	INIT_LIST_HEAD(&skdev->flush_list);
+
+	VPRINTK(skdev, "skcomp\n");
+	rc = skd_cons_skcomp(skdev);
+	if (rc < 0)
+		goto err_out;
+
+	VPRINTK(skdev, "skmsg\n");
+	rc = skd_cons_skmsg(skdev);
+	if (rc < 0)
+		goto err_out;
+
+	VPRINTK(skdev, "skreq\n");
+	rc = skd_cons_skreq(skdev);
+	if (rc < 0)
+		goto err_out;
+
+	VPRINTK(skdev, "skspcl\n");
+	rc = skd_cons_skspcl(skdev);
+	if (rc < 0)
+		goto err_out;
+
+	VPRINTK(skdev, "sksb\n");
+	rc = skd_cons_sksb(skdev);
+	if (rc < 0)
+		goto err_out;
+
+	VPRINTK(skdev, "disk\n");
+	rc = skd_cons_disk(skdev);
+	if (rc < 0)
+		goto err_out;
+
+
+
+	DPRINTK(skdev, "VICTORY\n");
+	return skdev;
+
+err_out:
+	DPRINTK(skdev, "construct failed\n");
+	skd_destruct(skdev);
+	return NULL;
+}
+
+static int skd_cons_skcomp(struct skd_device *skdev)
+{
+	int rc = 0;
+	struct fit_completion_entry_v1 *skcomp;
+	u32 nbytes;
+
+	nbytes = sizeof(*skcomp) * SKD_N_COMPLETION_ENTRY;
+	nbytes += sizeof(struct fit_comp_error_info) * SKD_N_COMPLETION_ENTRY;
+
+	VPRINTK(skdev, "comp pci_alloc, total bytes %d entries %d\n", nbytes,
+		SKD_N_COMPLETION_ENTRY);
+
+	skcomp = pci_alloc_consistent(skdev->pdev, nbytes,
+				      &skdev->cq_dma_address);
+
+	if (skcomp == NULL) {
+		rc = -ENOMEM;
+		goto err_out;
+	}
+
+	memset(skcomp, 0, nbytes);
+
+	skdev->skcomp_table = skcomp;
+	skdev->skerr_table = (struct fit_comp_error_info *)((char *)skcomp +
+							   sizeof(*skcomp) *
+							   SKD_N_COMPLETION_ENTRY);
+
+err_out:
+	return rc;
+}
+
+static int skd_cons_skmsg(struct skd_device *skdev)
+{
+	int rc = 0;
+	u32 i;
+
+	VPRINTK(skdev, "skmsg_table kzalloc, struct %u, count %u total %lu\n",
+		sizeof(struct skd_fitmsg_context),
+		skdev->num_fitmsg_context,
+		(unsigned long) sizeof(struct skd_fitmsg_context) *
+					skdev->num_fitmsg_context);
+
+	skdev->skmsg_table = kzalloc(sizeof(struct skd_fitmsg_context)
+				     *skdev->num_fitmsg_context, GFP_KERNEL);
+	if (skdev->skmsg_table == NULL) {
+		rc = -ENOMEM;
+		goto err_out;
+	}
+
+	for (i = 0; i < skdev->num_fitmsg_context; i++) {
+		struct skd_fitmsg_context *skmsg;
+
+		skmsg = &skdev->skmsg_table[i];
+
+		skmsg->id = i + SKD_ID_FIT_MSG;
+
+		skmsg->state = SKD_MSG_STATE_IDLE;
+		skmsg->msg_buf = pci_alloc_consistent(skdev->pdev,
+						      SKD_N_FITMSG_BYTES + 64,
+						      &skmsg->mb_dma_address);
+
+		if (skmsg->msg_buf == NULL) {
+			rc = -ENOMEM;
+			goto err_out;
+		}
+
+		skmsg->offset = (u32)((u64)skmsg->msg_buf &
+				      (~FIT_QCMD_BASE_ADDRESS_MASK));
+		skmsg->msg_buf += ~FIT_QCMD_BASE_ADDRESS_MASK;
+		skmsg->msg_buf = (u8 *)((u64)skmsg->msg_buf &
+				       FIT_QCMD_BASE_ADDRESS_MASK);
+		skmsg->mb_dma_address += ~FIT_QCMD_BASE_ADDRESS_MASK;
+		skmsg->mb_dma_address &= FIT_QCMD_BASE_ADDRESS_MASK;
+		memset(skmsg->msg_buf, 0, SKD_N_FITMSG_BYTES);
+
+		skmsg->next = &skmsg[1];
+	}
+
+	/* Free list is in order starting with the 0th entry. */
+	skdev->skmsg_table[i - 1].next = NULL;
+	skdev->skmsg_free_list = skdev->skmsg_table;
+
+err_out:
+	return rc;
+}
+
+static int skd_cons_skreq(struct skd_device *skdev)
+{
+	int rc = 0;
+	u32 i;
+
+	VPRINTK(skdev, "skreq_table kzalloc, struct %u, count %u total %u\n",
+		sizeof(struct skd_request_context),
+		skdev->num_req_context,
+		sizeof(struct skd_request_context) * skdev->num_req_context);
+
+	skdev->skreq_table = kzalloc(sizeof(struct skd_request_context)
+				     * skdev->num_req_context, GFP_KERNEL);
+	if (skdev->skreq_table == NULL) {
+		rc = -ENOMEM;
+		goto err_out;
+	}
+
+	VPRINTK(skdev, "alloc sg_table sg_per_req %u scatlist %u total %u\n",
+		skdev->sgs_per_request, sizeof(struct scatterlist),
+		skdev->sgs_per_request * sizeof(struct scatterlist));
+
+	for (i = 0; i < skdev->num_req_context; i++) {
+		struct skd_request_context *skreq;
+
+		skreq = &skdev->skreq_table[i];
+
+		skreq->id = i + SKD_ID_RW_REQUEST;
+		skreq->state = SKD_REQ_STATE_IDLE;
+
+		skreq->sg = kzalloc(sizeof(struct scatterlist) *
+				    skdev->sgs_per_request, GFP_KERNEL);
+		if (skreq->sg == NULL) {
+			rc = -ENOMEM;
+			goto err_out;
+		}
+		sg_init_table(skreq->sg, skdev->sgs_per_request);
+
+		skreq->sksg_list = skd_cons_sg_list(skdev,
+						    skdev->sgs_per_request,
+						    &skreq->sksg_dma_address);
+
+		if (skreq->sksg_list == NULL) {
+			rc = -ENOMEM;
+			goto err_out;
+		}
+
+		skreq->next = &skreq[1];
+	}
+
+	/* Free list is in order starting with the 0th entry. */
+	skdev->skreq_table[i - 1].next = NULL;
+	skdev->skreq_free_list = skdev->skreq_table;
+
+err_out:
+	return rc;
+}
+
+static int skd_cons_skspcl(struct skd_device *skdev)
+{
+	int rc = 0;
+	u32 i, nbytes;
+
+	VPRINTK(skdev, "skspcl_table kzalloc, struct %u, count %u total %u\n",
+		sizeof(struct skd_special_context),
+		skdev->n_special,
+		sizeof(struct skd_special_context) * skdev->n_special);
+
+	skdev->skspcl_table = kzalloc(sizeof(struct skd_special_context)
+				      * skdev->n_special, GFP_KERNEL);
+	if (skdev->skspcl_table == NULL) {
+		rc = -ENOMEM;
+		goto err_out;
+	}
+
+	for (i = 0; i < skdev->n_special; i++) {
+		struct skd_special_context *skspcl;
+
+		skspcl = &skdev->skspcl_table[i];
+
+		skspcl->req.id = i + SKD_ID_SPECIAL_REQUEST;
+		skspcl->req.state = SKD_REQ_STATE_IDLE;
+
+		skspcl->req.next = &skspcl[1].req;
+
+		nbytes = SKD_N_SPECIAL_FITMSG_BYTES;
+
+		skspcl->msg_buf = pci_alloc_consistent(skdev->pdev, nbytes,
+						       &skspcl->mb_dma_address);
+		if (skspcl->msg_buf == NULL) {
+			rc = -ENOMEM;
+			goto err_out;
+		}
+
+		memset(skspcl->msg_buf, 0, nbytes);
+
+		skspcl->req.sg = kzalloc(sizeof(struct scatterlist) *
+					 SKD_N_SG_PER_SPECIAL, GFP_KERNEL);
+		if (skspcl->req.sg == NULL) {
+			rc = -ENOMEM;
+			goto err_out;
+		}
+
+		skspcl->req.sksg_list = skd_cons_sg_list(skdev,
+							 SKD_N_SG_PER_SPECIAL,
+							 &skspcl->req.
+							 sksg_dma_address);
+		if (skspcl->req.sksg_list == NULL) {
+			rc = -ENOMEM;
+			goto err_out;
+		}
+	}
+
+	/* Free list is in order starting with the 0th entry. */
+	skdev->skspcl_table[i - 1].req.next = NULL;
+	skdev->skspcl_free_list = skdev->skspcl_table;
+
+	return rc;
+
+err_out:
+	return rc;
+}
+
+static int skd_cons_sksb(struct skd_device *skdev)
+{
+	int rc = 0;
+	struct skd_special_context *skspcl;
+	u32 nbytes;
+
+	skspcl = &skdev->internal_skspcl;
+
+	skspcl->req.id = 0 + SKD_ID_INTERNAL;
+	skspcl->req.state = SKD_REQ_STATE_IDLE;
+
+	nbytes = SKD_N_INTERNAL_BYTES;
+
+	skspcl->data_buf = pci_alloc_consistent(skdev->pdev, nbytes,
+						&skspcl->db_dma_address);
+	if (skspcl->data_buf == NULL) {
+		rc = -ENOMEM;
+		goto err_out;
+	}
+
+	memset(skspcl->data_buf, 0, nbytes);
+
+	nbytes = SKD_N_SPECIAL_FITMSG_BYTES;
+	skspcl->msg_buf = pci_alloc_consistent(skdev->pdev, nbytes,
+					       &skspcl->mb_dma_address);
+	if (skspcl->msg_buf == NULL) {
+		rc = -ENOMEM;
+		goto err_out;
+	}
+
+	memset(skspcl->msg_buf, 0, nbytes);
+
+	skspcl->req.sksg_list = skd_cons_sg_list(skdev, 1,
+						 &skspcl->req.sksg_dma_address);
+	if (skspcl->req.sksg_list == NULL) {
+		rc = -ENOMEM;
+		goto err_out;
+	}
+
+	if (!skd_format_internal_skspcl(skdev)) {
+		rc = -EINVAL;
+		goto err_out;
+	}
+
+err_out:
+	return rc;
+}
+
+static struct fit_sg_descriptor *skd_cons_sg_list(struct skd_device *skdev,
+						  u32 n_sg,
+						  dma_addr_t *ret_dma_addr)
+{
+	struct fit_sg_descriptor *sg_list;
+	u32 nbytes;
+
+	nbytes = sizeof(*sg_list) * n_sg;
+
+	sg_list = pci_alloc_consistent(skdev->pdev, nbytes, ret_dma_addr);
+
+	if (sg_list != NULL) {
+		uint64_t dma_address = *ret_dma_addr;
+		u32 i;
+
+		memset(sg_list, 0, nbytes);
+
+		for (i = 0; i < n_sg - 1; i++) {
+			uint64_t ndp_off;
+			ndp_off = (i + 1) * sizeof(struct fit_sg_descriptor);
+
+			sg_list[i].next_desc_ptr = dma_address + ndp_off;
+		}
+		sg_list[i].next_desc_ptr = 0LL;
+	}
+
+	return sg_list;
+}
+
+static int skd_cons_disk(struct skd_device *skdev)
+{
+	int rc = 0;
+	struct gendisk *disk;
+	struct request_queue *q;
+	unsigned long flags;
+
+	disk = alloc_disk(SKD_MINORS_PER_DEVICE);
+	if (!disk) {
+		rc = -ENOMEM;
+		goto err_out;
+	}
+
+	skdev->disk = disk;
+	sprintf(disk->disk_name, DRV_NAME "%u", skdev->devno);
+
+	disk->major = skdev->major;
+	disk->first_minor = skdev->devno * SKD_MINORS_PER_DEVICE;
+	disk->fops = &skd_blockdev_ops;
+	disk->private_data = skdev;
+
+	if (!skd_bio) {
+		q = blk_init_queue(skd_request_fn, &skdev->lock);
+	} else {
+		q = blk_alloc_queue(GFP_KERNEL);
+		q->queue_flags = QUEUE_FLAG_IO_STAT | QUEUE_FLAG_STACKABLE;
+	}
+
+	if (!q) {
+		rc = -ENOMEM;
+		goto err_out;
+	}
+
+	skdev->queue = q;
+	disk->queue = q;
+	q->queuedata = skdev;
+
+	if (skd_bio) {
+		q->queue_lock = &skdev->lock;
+		blk_queue_make_request(q, skd_make_request);
+	}
+
+	blk_queue_flush(q, REQ_FLUSH | REQ_FUA);
+	blk_queue_max_segments(q, skdev->sgs_per_request);
+	blk_queue_max_hw_sectors(q, SKD_N_MAX_SECTORS);
+
+	/* set sysfs ptimal_io_size to 8K */
+	blk_queue_io_opt(q, 8192);
+
+	/* DISCARD Flag initialization. */
+	q->limits.discard_granularity = 8192;
+	q->limits.discard_alignment = 0;
+	q->limits.max_discard_sectors = UINT_MAX >> 9;
+	q->limits.discard_zeroes_data = 1;
+	queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
+	queue_flag_set_unlocked(QUEUE_FLAG_NONROT, q);
+
+	spin_lock_irqsave(&skdev->lock, flags);
+	VPRINTK(skdev, "stopping %s queue\n", skdev->name);
+	skd_stop_queue(skdev);
+	spin_unlock_irqrestore(&skdev->lock, flags);
+
+err_out:
+	return rc;
+}
+
+/*
+ *****************************************************************************
+ * DESTRUCT (FREE)
+ *****************************************************************************
+ */
+
+static void skd_free_skcomp(struct skd_device *skdev);
+static void skd_free_skmsg(struct skd_device *skdev);
+static void skd_free_skreq(struct skd_device *skdev);
+static void skd_free_skspcl(struct skd_device *skdev);
+static void skd_free_sksb(struct skd_device *skdev);
+static void skd_free_sg_list(struct skd_device *skdev,
+			     struct fit_sg_descriptor *sg_list,
+			     u32 n_sg, dma_addr_t dma_addr);
+static void skd_free_disk(struct skd_device *skdev);
+
+static void skd_destruct(struct skd_device *skdev)
+{
+	if (skdev == NULL)
+		return;
+
+
+	VPRINTK(skdev, "disk\n");
+	skd_free_disk(skdev);
+
+	VPRINTK(skdev, "sksb\n");
+	skd_free_sksb(skdev);
+
+	VPRINTK(skdev, "skspcl\n");
+	skd_free_skspcl(skdev);
+
+	VPRINTK(skdev, "skreq\n");
+	skd_free_skreq(skdev);
+
+	VPRINTK(skdev, "skmsg\n");
+	skd_free_skmsg(skdev);
+
+	VPRINTK(skdev, "skcomp\n");
+	skd_free_skcomp(skdev);
+
+	VPRINTK(skdev, "skdev\n");
+	kfree(skdev);
+}
+
+static void skd_free_skcomp(struct skd_device *skdev)
+{
+	if (skdev->skcomp_table != NULL) {
+		u32 nbytes;
+
+		nbytes = sizeof(skdev->skcomp_table[0]) *
+			 SKD_N_COMPLETION_ENTRY;
+		pci_free_consistent(skdev->pdev, nbytes,
+				    skdev->skcomp_table, skdev->cq_dma_address);
+	}
+
+	skdev->skcomp_table = NULL;
+	skdev->cq_dma_address = 0;
+}
+
+static void skd_free_skmsg(struct skd_device *skdev)
+{
+	u32 i;
+
+	if (skdev->skmsg_table == NULL)
+		return;
+
+	for (i = 0; i < skdev->num_fitmsg_context; i++) {
+		struct skd_fitmsg_context *skmsg;
+
+		skmsg = &skdev->skmsg_table[i];
+
+		if (skmsg->msg_buf != NULL) {
+			skmsg->msg_buf += skmsg->offset;
+			skmsg->mb_dma_address += skmsg->offset;
+			pci_free_consistent(skdev->pdev, SKD_N_FITMSG_BYTES,
+					    skmsg->msg_buf,
+					    skmsg->mb_dma_address);
+		}
+		skmsg->msg_buf = NULL;
+		skmsg->mb_dma_address = 0;
+	}
+
+	kfree(skdev->skmsg_table);
+	skdev->skmsg_table = NULL;
+}
+
+static void skd_free_skreq(struct skd_device *skdev)
+{
+	u32 i;
+
+	if (skdev->skreq_table == NULL)
+		return;
+
+	for (i = 0; i < skdev->num_req_context; i++) {
+		struct skd_request_context *skreq;
+
+		skreq = &skdev->skreq_table[i];
+
+		skd_free_sg_list(skdev, skreq->sksg_list,
+				 skdev->sgs_per_request,
+				 skreq->sksg_dma_address);
+
+		skreq->sksg_list = NULL;
+		skreq->sksg_dma_address = 0;
+
+		kfree(skreq->sg);
+	}
+
+	kfree(skdev->skreq_table);
+	skdev->skreq_table = NULL;
+}
+
+static void skd_free_skspcl(struct skd_device *skdev)
+{
+	u32 i;
+	u32 nbytes;
+
+	if (skdev->skspcl_table == NULL)
+		return;
+
+	for (i = 0; i < skdev->n_special; i++) {
+		struct skd_special_context *skspcl;
+
+		skspcl = &skdev->skspcl_table[i];
+
+		if (skspcl->msg_buf != NULL) {
+			nbytes = SKD_N_SPECIAL_FITMSG_BYTES;
+			pci_free_consistent(skdev->pdev, nbytes,
+					    skspcl->msg_buf,
+					    skspcl->mb_dma_address);
+		}
+
+		skspcl->msg_buf = NULL;
+		skspcl->mb_dma_address = 0;
+
+		skd_free_sg_list(skdev, skspcl->req.sksg_list,
+				 SKD_N_SG_PER_SPECIAL,
+				 skspcl->req.sksg_dma_address);
+
+		skspcl->req.sksg_list = NULL;
+		skspcl->req.sksg_dma_address = 0;
+
+		kfree(skspcl->req.sg);
+	}
+
+	kfree(skdev->skspcl_table);
+	skdev->skspcl_table = NULL;
+}
+
+static void skd_free_sksb(struct skd_device *skdev)
+{
+	struct skd_special_context *skspcl;
+	u32 nbytes;
+
+	skspcl = &skdev->internal_skspcl;
+
+	if (skspcl->data_buf != NULL) {
+		nbytes = SKD_N_INTERNAL_BYTES;
+
+		pci_free_consistent(skdev->pdev, nbytes,
+				    skspcl->data_buf, skspcl->db_dma_address);
+	}
+
+	skspcl->data_buf = NULL;
+	skspcl->db_dma_address = 0;
+
+	if (skspcl->msg_buf != NULL) {
+		nbytes = SKD_N_SPECIAL_FITMSG_BYTES;
+		pci_free_consistent(skdev->pdev, nbytes,
+				    skspcl->msg_buf, skspcl->mb_dma_address);
+	}
+
+	skspcl->msg_buf = NULL;
+	skspcl->mb_dma_address = 0;
+
+	skd_free_sg_list(skdev, skspcl->req.sksg_list, 1,
+			 skspcl->req.sksg_dma_address);
+
+	skspcl->req.sksg_list = NULL;
+	skspcl->req.sksg_dma_address = 0;
+}
+
+static void skd_free_sg_list(struct skd_device *skdev,
+			     struct fit_sg_descriptor *sg_list,
+			     u32 n_sg, dma_addr_t dma_addr)
+{
+	if (sg_list != NULL) {
+		u32 nbytes;
+
+		nbytes = sizeof(*sg_list) * n_sg;
+
+		pci_free_consistent(skdev->pdev, nbytes, sg_list, dma_addr);
+	}
+}
+
+static void skd_free_disk(struct skd_device *skdev)
+{
+	struct gendisk *disk = skdev->disk;
+
+	if (disk != NULL) {
+		struct request_queue *q = disk->queue;
+
+		if (disk->flags & GENHD_FL_UP)
+			del_gendisk(disk);
+		if (q)
+			blk_cleanup_queue(q);
+		put_disk(disk);
+	}
+	skdev->disk = NULL;
+}
+
+
+
+/*
+ *****************************************************************************
+ * BLOCK DEVICE (BDEV) GLUE
+ *****************************************************************************
+ */
+
+static int skd_bdev_getgeo(struct block_device *bdev, struct hd_geometry *geo)
+{
+	struct skd_device *skdev;
+	u64 capacity;
+
+	skdev = bdev->bd_disk->private_data;
+
+	DPRINTK(skdev, "%s: CMD[%s] getgeo device\n",
+		bdev->bd_disk->disk_name, current->comm);
+
+	if (skdev->read_cap_is_valid) {
+		capacity = get_capacity(skdev->disk);
+		geo->heads = 64;
+		geo->sectors = 255;
+		geo->cylinders = (capacity) / (255 * 64);
+
+		return 0;
+	}
+	return -EIO;
+}
+
+static int skd_bdev_attach(struct skd_device *skdev)
+{
+	DPRINTK(skdev, "add_disk\n");
+	add_disk(skdev->disk);
+	return 0;
+}
+
+static const struct block_device_operations skd_blockdev_ops = {
+	.owner		= THIS_MODULE,
+	.ioctl		= skd_bdev_ioctl,
+	.getgeo		= skd_bdev_getgeo,
+};
+
+
+/*
+ *****************************************************************************
+ * PCIe DRIVER GLUE
+ *****************************************************************************
+ */
+
+static DEFINE_PCI_DEVICE_TABLE(skd_pci_tbl) = {
+	{ PCI_VENDOR_ID_STEC, PCI_DEVICE_ID_S1120,
+	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, },
+	{ 0 }                     /* terminate list */
+};
+
+MODULE_DEVICE_TABLE(pci, skd_pci_tbl);
+
+static char *skd_pci_info(struct skd_device *skdev, char *str)
+{
+	int pcie_reg;
+
+	strcpy(str, "PCIe (");
+	pcie_reg = pci_find_capability(skdev->pdev, PCI_CAP_ID_EXP);
+
+	if (pcie_reg) {
+
+		char lwstr[6];
+		uint16_t pcie_lstat, lspeed, lwidth;
+
+		pcie_reg += 0x12;
+		pci_read_config_word(skdev->pdev, pcie_reg, &pcie_lstat);
+		lspeed = pcie_lstat & (0xF);
+		lwidth = (pcie_lstat & 0x3F0) >> 4;
+
+		if (lspeed == 1)
+			strcat(str, "2.5GT/s ");
+		else if (lspeed == 2)
+			strcat(str, "5.0GT/s ");
+		else
+			strcat(str, "<unknown> ");
+		snprintf(lwstr, sizeof(lwstr), "%dX)", lwidth);
+		strcat(str, lwstr);
+	}
+	return str;
+}
+
+static int skd_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+	int i;
+	int rc = 0;
+	char pci_str[32];
+	struct skd_device *skdev;
+
+	pr_info("STEC s1120 Driver(%s) version %s-b%s\n",
+	       DRV_NAME, DRV_VERSION, DRV_BUILD_ID);
+	pr_info("(skd?:??:[%s]): vendor=%04X device=%04x\n",
+	       pci_name(pdev), pdev->vendor, pdev->device);
+
+	rc = pci_enable_device(pdev);
+	if (rc)
+		return rc;
+	rc = pci_request_regions(pdev, DRV_NAME);
+	if (rc)
+		goto err_out;
+	rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
+	if (!rc) {
+		if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
+
+			pr_err("(%s): consistent DMA mask error %d\n",
+			       pci_name(pdev), rc);
+		}
+	} else {
+		(rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)));
+		if (rc) {
+
+			pr_err("(%s): DMA mask error %d\n",
+			       pci_name(pdev), rc);
+			goto err_out_regions;
+		}
+	}
+
+	skdev = skd_construct(pdev);
+	if (skdev == NULL)
+		goto err_out_regions;
+
+	skd_pci_info(skdev, pci_str);
+	pr_info("(%s): %s 64bit\n", skd_name(skdev), pci_str);
+
+	pci_set_master(pdev);
+	rc = pci_enable_pcie_error_reporting(pdev);
+	if (rc) {
+		pr_err(
+		       "(%s): bad enable of PCIe error reporting rc=%d\n",
+		       skd_name(skdev), rc);
+		skdev->pcie_error_reporting_is_enabled = 0;
+	} else
+		skdev->pcie_error_reporting_is_enabled = 1;
+
+
+	pci_set_drvdata(pdev, skdev);
+	skdev->pdev = pdev;
+	skdev->disk->driverfs_dev = &pdev->dev;
+
+	for (i = 0; i < SKD_MAX_BARS; i++) {
+		skdev->mem_phys[i] = pci_resource_start(pdev, i);
+		skdev->mem_size[i] = (u32)pci_resource_len(pdev, i);
+		skdev->mem_map[i] = ioremap(skdev->mem_phys[i],
+					    skdev->mem_size[i]);
+		if (!skdev->mem_map[i]) {
+			pr_err("(%s): Unable to map adapter memory!\n",
+			       skd_name(skdev));
+			rc = -ENODEV;
+			goto err_out_iounmap;
+		}
+		DPRINTK(skdev, "mem_map=%p, phyd=%016llx, size=%d\n",
+			skdev->mem_map[i],
+			(uint64_t)skdev->mem_phys[i], skdev->mem_size[i]);
+	}
+
+	rc = skd_acquire_irq(skdev);
+	if (rc) {
+		pr_err("(%s): interrupt resource error %d\n",
+		       skd_name(skdev), rc);
+		goto err_out_iounmap;
+	}
+
+	rc = skd_start_timer(skdev);
+	if (rc)
+		goto err_out_timer;
+
+	init_waitqueue_head(&skdev->waitq);
+
+	skd_start_device(skdev);
+
+	rc = wait_event_interruptible_timeout(skdev->waitq,
+					      (skdev->gendisk_on),
+					      (SKD_START_WAIT_SECONDS * HZ));
+	if (skdev->gendisk_on > 0) {
+		/* device came on-line after reset */
+		skd_bdev_attach(skdev);
+		rc = 0;
+	} else {
+		/* we timed out, something is wrong with the device,
+		   don't add the disk structure */
+		pr_err(
+		       "(%s): error: waiting for s1120 timed out %d!\n",
+		       skd_name(skdev), rc);
+		/* in case of no error; we timeout with ENXIO */
+		if (!rc)
+			rc = -ENXIO;
+		goto err_out_timer;
+	}
+
+
+#ifdef SKD_VMK_POLL_HANDLER
+	if (skdev->irq_type == SKD_IRQ_MSIX) {
+		/* MSIX completion handler is being used for coredump */
+		vmklnx_scsi_register_poll_handler(skdev->scsi_host,
+						  skdev->msix_entries[5].vector,
+						  skd_comp_q, skdev);
+	} else {
+		vmklnx_scsi_register_poll_handler(skdev->scsi_host,
+						  skdev->pdev->irq, skd_isr,
+						  skdev);
+	}
+#endif  /* SKD_VMK_POLL_HANDLER */
+
+	return rc;
+
+err_out_timer:
+	skd_stop_device(skdev);
+	skd_release_irq(skdev);
+
+err_out_iounmap:
+	for (i = 0; i < SKD_MAX_BARS; i++)
+		if (skdev->mem_map[i])
+			iounmap(skdev->mem_map[i]);
+
+	if (skdev->pcie_error_reporting_is_enabled)
+		pci_disable_pcie_error_reporting(pdev);
+
+	skd_destruct(skdev);
+
+err_out_regions:
+	pci_release_regions(pdev);
+
+err_out:
+	pci_disable_device(pdev);
+	pci_set_drvdata(pdev, NULL);
+	return rc;
+}
+
+static void skd_pci_remove(struct pci_dev *pdev)
+{
+	int i;
+	struct skd_device *skdev;
+
+	skdev = pci_get_drvdata(pdev);
+	if (!skdev) {
+		pr_err("%s: no device data for PCI\n", pci_name(pdev));
+		return;
+	}
+	skd_stop_device(skdev);
+	skd_release_irq(skdev);
+
+	for (i = 0; i < SKD_MAX_BARS; i++)
+		if (skdev->mem_map[i])
+			iounmap((u32 *)skdev->mem_map[i]);
+
+	if (skdev->pcie_error_reporting_is_enabled)
+		pci_disable_pcie_error_reporting(pdev);
+
+	skd_destruct(skdev);
+
+	pci_release_regions(pdev);
+	pci_disable_device(pdev);
+	pci_set_drvdata(pdev, NULL);
+
+	return;
+}
+
+static int skd_pci_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+	int i;
+	struct skd_device *skdev;
+
+	skdev = pci_get_drvdata(pdev);
+	if (!skdev) {
+		pr_err("%s: no device data for PCI\n", pci_name(pdev));
+		return -EIO;
+	}
+
+	skd_stop_device(skdev);
+
+	skd_release_irq(skdev);
+
+	for (i = 0; i < SKD_MAX_BARS; i++)
+		if (skdev->mem_map[i])
+			iounmap((u32 *)skdev->mem_map[i]);
+
+	if (skdev->pcie_error_reporting_is_enabled)
+		pci_disable_pcie_error_reporting(pdev);
+
+	pci_release_regions(pdev);
+	pci_save_state(pdev);
+	pci_disable_device(pdev);
+	pci_set_power_state(pdev, pci_choose_state(pdev, state));
+	return 0;
+}
+
+static int skd_pci_resume(struct pci_dev *pdev)
+{
+	int i;
+	int rc = 0;
+	struct skd_device *skdev;
+
+	skdev = pci_get_drvdata(pdev);
+	if (!skdev) {
+		pr_err("%s: no device data for PCI\n", pci_name(pdev));
+		return -1;
+	}
+
+	pci_set_power_state(pdev, PCI_D0);
+	pci_enable_wake(pdev, PCI_D0, 0);
+	pci_restore_state(pdev);
+
+	rc = pci_enable_device(pdev);
+	if (rc)
+		return rc;
+	rc = pci_request_regions(pdev, DRV_NAME);
+	if (rc)
+		goto err_out;
+	rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
+	if (!rc) {
+		if (pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64))) {
+
+			pr_err("(%s): consistent DMA mask error %d\n",
+			       pci_name(pdev), rc);
+		}
+	} else {
+		rc = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
+		if (rc) {
+
+			pr_err("(%s): DMA mask error %d\n",
+			       pci_name(pdev), rc);
+			goto err_out_regions;
+		}
+	}
+
+	pci_set_master(pdev);
+	rc = pci_enable_pcie_error_reporting(pdev);
+	if (rc) {
+		pr_err("(%s): bad enable of PCIe error reporting rc=%d\n",
+		       skdev->name, rc);
+		skdev->pcie_error_reporting_is_enabled = 0;
+	} else
+		skdev->pcie_error_reporting_is_enabled = 1;
+
+	for (i = 0; i < SKD_MAX_BARS; i++) {
+
+		skdev->mem_phys[i] = pci_resource_start(pdev, i);
+		skdev->mem_size[i] = (u32)pci_resource_len(pdev, i);
+		skdev->mem_map[i] = ioremap(skdev->mem_phys[i],
+					    skdev->mem_size[i]);
+		if (!skdev->mem_map[i]) {
+			pr_err("(%s): Unable to map adapter memory!\n",
+			       skd_name(skdev));
+			rc = -ENODEV;
+			goto err_out_iounmap;
+		}
+		DPRINTK(skdev, "mem_map=%p, phyd=%016llx, size=%d\n",
+			skdev->mem_map[i],
+			(uint64_t)skdev->mem_phys[i], skdev->mem_size[i]);
+	}
+	rc = skd_acquire_irq(skdev);
+	if (rc) {
+
+		pr_err("(%s): interrupt resource error %d\n",
+		       pci_name(pdev), rc);
+		goto err_out_iounmap;
+	}
+
+	rc = skd_start_timer(skdev);
+	if (rc)
+		goto err_out_timer;
+
+	init_waitqueue_head(&skdev->waitq);
+
+	skd_start_device(skdev);
+
+	return rc;
+
+err_out_timer:
+	skd_stop_device(skdev);
+	skd_release_irq(skdev);
+
+err_out_iounmap:
+	for (i = 0; i < SKD_MAX_BARS; i++)
+		if (skdev->mem_map[i])
+			iounmap(skdev->mem_map[i]);
+
+	if (skdev->pcie_error_reporting_is_enabled)
+		pci_disable_pcie_error_reporting(pdev);
+
+err_out_regions:
+	pci_release_regions(pdev);
+
+err_out:
+	pci_disable_device(pdev);
+	return rc;
+}
+
+static void skd_pci_shutdown(struct pci_dev *pdev)
+{
+	struct skd_device *skdev;
+
+	pr_err("skd_pci_shutdown called\n");
+
+	skdev = pci_get_drvdata(pdev);
+	if (!skdev) {
+		pr_err("%s: no device data for PCI\n", pci_name(pdev));
+		return;
+	}
+
+	pr_err("%s: calling stop\n", skd_name(skdev));
+	skd_stop_device(skdev);
+}
+
+static struct pci_driver skd_driver = {
+	.name		= DRV_NAME,
+	.id_table	= skd_pci_tbl,
+	.probe		= skd_pci_probe,
+	.remove		= skd_pci_remove,
+	.suspend	= skd_pci_suspend,
+	.resume		= skd_pci_resume,
+	.shutdown	= skd_pci_shutdown,
+};
+
+/*
+ *****************************************************************************
+ * LOGGING SUPPORT
+ *****************************************************************************
+ */
+
+static const char *skd_name(struct skd_device *skdev)
+{
+	memset(skdev->id_str, 0, sizeof(skdev->id_str));
+
+	if (skdev->inquiry_is_valid)
+		snprintf(skdev->id_str, sizeof(skdev->id_str), "%s:%s:[%s]",
+			 skdev->name, skdev->inq_serial_num,
+			 pci_name(skdev->pdev));
+	else
+		snprintf(skdev->id_str, sizeof(skdev->id_str), "%s:??:[%s]",
+			 skdev->name, pci_name(skdev->pdev));
+
+	return skdev->id_str;
+}
+
+const char *skd_drive_state_to_str(int state)
+{
+	switch (state) {
+	case FIT_SR_DRIVE_OFFLINE:
+		return "OFFLINE";
+	case FIT_SR_DRIVE_INIT:
+		return "INIT";
+	case FIT_SR_DRIVE_ONLINE:
+		return "ONLINE";
+	case FIT_SR_DRIVE_BUSY:
+		return "BUSY";
+	case FIT_SR_DRIVE_FAULT:
+		return "FAULT";
+	case FIT_SR_DRIVE_DEGRADED:
+		return "DEGRADED";
+	case FIT_SR_PCIE_LINK_DOWN:
+		return "INK_DOWN";
+	case FIT_SR_DRIVE_SOFT_RESET:
+		return "SOFT_RESET";
+	case FIT_SR_DRIVE_NEED_FW_DOWNLOAD:
+		return "NEED_FW";
+	case FIT_SR_DRIVE_INIT_FAULT:
+		return "INIT_FAULT";
+	case FIT_SR_DRIVE_BUSY_SANITIZE:
+		return "BUSY_SANITIZE";
+	case FIT_SR_DRIVE_BUSY_ERASE:
+		return "BUSY_ERASE";
+	case FIT_SR_DRIVE_FW_BOOTING:
+		return "FW_BOOTING";
+	default:
+		return "???";
+	}
+}
+
+const char *skd_skdev_state_to_str(enum skd_drvr_state state)
+{
+	switch (state) {
+	case SKD_DRVR_STATE_LOAD:
+		return "LOAD";
+	case SKD_DRVR_STATE_IDLE:
+		return "IDLE";
+	case SKD_DRVR_STATE_BUSY:
+		return "BUSY";
+	case SKD_DRVR_STATE_STARTING:
+		return "STARTING";
+	case SKD_DRVR_STATE_ONLINE:
+		return "ONLINE";
+	case SKD_DRVR_STATE_PAUSING:
+		return "PAUSING";
+	case SKD_DRVR_STATE_PAUSED:
+		return "PAUSED";
+	case SKD_DRVR_STATE_DRAINING_TIMEOUT:
+		return "DRAINING_TIMEOUT";
+	case SKD_DRVR_STATE_RESTARTING:
+		return "RESTARTING";
+	case SKD_DRVR_STATE_RESUMING:
+		return "RESUMING";
+	case SKD_DRVR_STATE_STOPPING:
+		return "STOPPING";
+	case SKD_DRVR_STATE_SYNCING:
+		return "SYNCING";
+	case SKD_DRVR_STATE_FAULT:
+		return "FAULT";
+	case SKD_DRVR_STATE_DISAPPEARED:
+		return "DISAPPEARED";
+	case SKD_DRVR_STATE_BUSY_ERASE:
+		return "BUSY_ERASE";
+	case SKD_DRVR_STATE_BUSY_SANITIZE:
+		return "BUSY_SANITIZE";
+	case SKD_DRVR_STATE_BUSY_IMMINENT:
+		return "BUSY_IMMINENT";
+	case SKD_DRVR_STATE_WAIT_BOOT:
+		return "WAIT_BOOT";
+
+	default:
+		return "???";
+	}
+}
+
+const char *skd_skmsg_state_to_str(enum skd_fit_msg_state state)
+{
+	switch (state) {
+	case SKD_MSG_STATE_IDLE:
+		return "IDLE";
+	case SKD_MSG_STATE_BUSY:
+		return "BUSY";
+	default:
+		return "???";
+	}
+}
+
+const char *skd_skreq_state_to_str(enum skd_req_state state)
+{
+	switch (state) {
+	case SKD_REQ_STATE_IDLE:
+		return "IDLE";
+	case SKD_REQ_STATE_SETUP:
+		return "SETUP";
+	case SKD_REQ_STATE_BUSY:
+		return "BUSY";
+	case SKD_REQ_STATE_COMPLETED:
+		return "COMPLETED";
+	case SKD_REQ_STATE_TIMEOUT:
+		return "TIMEOUT";
+	case SKD_REQ_STATE_ABORTED:
+		return "ABORTED";
+	default:
+		return "???";
+	}
+}
+
+static void skd_log_skdev(struct skd_device *skdev, const char *event)
+{
+	DPRINTK(skdev, "(%s) skdev=%p event='%s'\n", skdev->name, skdev, event);
+	DPRINTK(skdev, "  drive_state=%s(%d) driver_state=%s(%d)\n",
+		skd_drive_state_to_str(skdev->drive_state), skdev->drive_state,
+		skd_skdev_state_to_str(skdev->state), skdev->state);
+	DPRINTK(skdev, "  busy=%d limit=%d dev=%d lowat=%d\n",
+		skdev->in_flight, skdev->cur_max_queue_depth,
+		skdev->dev_max_queue_depth, skdev->queue_low_water_mark);
+	DPRINTK(skdev, "  timestamp=0x%x cycle=%d cycle_ix=%d\n",
+		skdev->timeout_stamp, skdev->skcomp_cycle, skdev->skcomp_ix);
+}
+
+static void skd_log_skmsg(struct skd_device *skdev,
+			  struct skd_fitmsg_context *skmsg, const char *event)
+{
+	DPRINTK(skdev, "(%s) skmsg=%p event='%s'\n", skdev->name, skmsg, event);
+	DPRINTK(skdev, "  state=%s(%d) id=0x%04x length=%d\n",
+		skd_skmsg_state_to_str(skmsg->state), skmsg->state,
+		skmsg->id, skmsg->length);
+}
+
+static void skd_log_skreq(struct skd_device *skdev,
+			  struct skd_request_context *skreq, const char *event)
+{
+	DPRINTK(skdev, "(%s) skreq=%p event='%s'\n", skdev->name, skreq, event);
+	DPRINTK(skdev, "  state=%s(%d) id=0x%04x fitmsg=0x%04x\n",
+		skd_skreq_state_to_str(skreq->state), skreq->state,
+		skreq->id, skreq->fitmsg_id);
+	DPRINTK(skdev, "  timo=0x%x sg_dir=%d n_sg=%d\n",
+		skreq->timeout_stamp, skreq->sg_data_dir, skreq->n_sg);
+
+	if (!skd_bio) {
+		if (skreq->req != NULL) {
+			struct request *req = skreq->req;
+			u32 lba = (u32)blk_rq_pos(req);
+			u32 count = blk_rq_sectors(req);
+
+			DPRINTK(skdev,
+				"  req=%p lba=%u(0x%x) count=%u(0x%x) dir=%d\n",
+				req, lba, lba, count, count,
+				(int)rq_data_dir(req));
+		} else
+			DPRINTK(skdev, "  req=NULL\n");
+	} else {
+		if (skreq->bio != NULL) {
+			struct bio *bio = skreq->bio;
+			u32 lba = (u32)bio->bi_sector;
+			u32 count = bio_sectors(bio);
+
+			DPRINTK(skdev,
+				"  bio=%p lba=%u(0x%x) count=%u(0x%x) dir=%d\n",
+				bio, lba, lba, count, count,
+				(int)bio_data_dir(bio));
+		} else
+			DPRINTK(skdev, "  req=NULL\n");
+	}
+}
+
+/*
+ *****************************************************************************
+ * MODULE GLUE
+ *****************************************************************************
+ */
+
+static int __init skd_init(void)
+{
+	int rc = 0;
+
+	pr_info(PFX " v%s-b%s loaded\n", DRV_VERSION, DRV_BUILD_ID);
+
+	switch (skd_isr_type) {
+	case SKD_IRQ_LEGACY:
+	case SKD_IRQ_MSI:
+	case SKD_IRQ_MSIX:
+		break;
+	default:
+		pr_info("skd_isr_type %d invalid, re-set to %d\n",
+		       skd_isr_type, SKD_IRQ_DEFAULT);
+		skd_isr_type = SKD_IRQ_DEFAULT;
+	}
+
+	skd_flush_slab = kmem_cache_create(SKD_FLUSH_JOB,
+						sizeof(struct skd_flush_cmd),
+						0, 0, NULL);
+
+	if (!skd_flush_slab) {
+		pr_err("failed to allocated flush slab.\n");
+		return -ENOMEM;
+	}
+
+	if (skd_max_queue_depth < 1
+	    || skd_max_queue_depth > SKD_MAX_QUEUE_DEPTH) {
+		pr_info(
+		       "skd_max_queue_depth %d invalid, re-set to %d\n",
+		       skd_max_queue_depth, SKD_MAX_QUEUE_DEPTH_DEFAULT);
+		skd_max_queue_depth = SKD_MAX_QUEUE_DEPTH_DEFAULT;
+	}
+
+	if (skd_max_req_per_msg < 1 || skd_max_req_per_msg > 14) {
+		pr_info(
+		       "skd_max_req_per_msg %d invalid, re-set to %d\n",
+		       skd_max_req_per_msg, SKD_MAX_REQ_PER_MSG_DEFAULT);
+		skd_max_req_per_msg = SKD_MAX_REQ_PER_MSG_DEFAULT;
+	}
+
+	if (skd_sgs_per_request < 1 || skd_sgs_per_request > 4096) {
+		pr_info(
+		       "skd_sg_per_request %d invalid, re-set to %d\n",
+		       skd_sgs_per_request, SKD_N_SG_PER_REQ_DEFAULT);
+		skd_sgs_per_request = SKD_N_SG_PER_REQ_DEFAULT;
+	}
+
+	if (skd_dbg_level < 0 || skd_dbg_level > 2) {
+		pr_info("skd_dbg_level %d invalid, re-set to %d\n",
+		       skd_dbg_level, 0);
+		skd_dbg_level = 0;
+	}
+
+	if (skd_isr_comp_limit < 0) {
+		pr_info("skd_isr_comp_limit %d invalid, set to %d\n",
+		       skd_isr_comp_limit, 0);
+		skd_isr_comp_limit = 0;
+	}
+
+	if (skd_max_pass_thru < 1 || skd_max_pass_thru > 50) {
+		pr_info("skd_max_pass_thru %d invalid, re-set to %d\n",
+		       skd_max_pass_thru, SKD_N_SPECIAL_CONTEXT);
+		skd_max_pass_thru = SKD_N_SPECIAL_CONTEXT;
+	}
+
+	/* Obtain major device number. */
+	rc = register_blkdev(0, DRV_NAME);
+	if (rc < 0)
+		return rc;
+
+	skd_major = rc;
+
+	return pci_register_driver(&skd_driver);
+
+}
+
+static void __exit skd_exit(void)
+{
+	pr_info(PFX " v%s-b%s unloading\n", DRV_VERSION, DRV_BUILD_ID);
+
+	unregister_blkdev(skd_major, DRV_NAME);
+	pci_unregister_driver(&skd_driver);
+
+	kmem_cache_destroy(skd_flush_slab);
+}
+
+static int
+skd_flush_cmd_enqueue(struct skd_device *skdev, void *cmd)
+{
+	struct skd_flush_cmd *item;
+
+	item = kmem_cache_zalloc(skd_flush_slab, GFP_ATOMIC);
+	if (!item) {
+		pr_err("skd_flush_cmd_enqueue: Failed to allocated item.\n");
+		return -ENOMEM;
+	}
+
+	item->cmd = cmd;
+	list_add_tail(&item->flist, &skdev->flush_list);
+	return 0;
+}
+
+static void *
+skd_flush_cmd_dequeue(struct skd_device *skdev)
+{
+	void *cmd;
+	struct skd_flush_cmd *item;
+
+	item = list_entry(skdev->flush_list.next, struct skd_flush_cmd, flist);
+	list_del_init(&item->flist);
+	cmd = item->cmd;
+	kmem_cache_free(skd_flush_slab, item);
+	return cmd;
+}
+
+module_init(skd_init);
+module_exit(skd_exit);
diff --git a/drivers/block/skd_s1120.h b/drivers/block/skd_s1120.h
new file mode 100644
index 000000000000..bf01941cdd62
--- /dev/null
+++ b/drivers/block/skd_s1120.h
@@ -0,0 +1,354 @@
+/* Copyright 2012 STEC, Inc.
+ *
+ * This file is licensed under the terms of the 3-clause
+ * BSD License (http://opensource.org/licenses/BSD-3-Clause)
+ * or the GNU GPL-2.0 (http://www.gnu.org/licenses/gpl-2.0.html),
+ * at your option. Both licenses are also available in the LICENSE file
+ * distributed with this project. This file may not be copied, modified,
+ * or distributed except in accordance with those terms.
+ */
+
+
+#ifndef SKD_S1120_H
+#define SKD_S1120_H
+
+#pragma pack(push, s1120_h, 1)
+
+/*
+ * Q-channel, 64-bit r/w
+ */
+#define FIT_Q_COMMAND               0x400u
+#define  FIT_QCMD_QID_MASK              (0x3 << 1)
+#define  FIT_QCMD_QID0                  (0x0 << 1)
+#define  FIT_QCMD_QID_NORMAL            FIT_QCMD_QID0
+#ifndef SKD_OMIT_FROM_SRC_DIST
+#define  FIT_QCMD_QID1                  (0x1 << 1)
+#define  FIT_QCMD_QID2                  (0x2 << 1)
+#define  FIT_QCMD_QID3                  (0x3 << 1)
+#endif /* SKD_OMIT_FROM_SRC_DIST */
+#define  FIT_QCMD_FLUSH_QUEUE           (0ull)      /* add QID */
+#define  FIT_QCMD_MSGSIZE_MASK          (0x3 << 4)
+#define  FIT_QCMD_MSGSIZE_64            (0x0 << 4)
+#define  FIT_QCMD_MSGSIZE_128           (0x1 << 4)
+#define  FIT_QCMD_MSGSIZE_256           (0x2 << 4)
+#define  FIT_QCMD_MSGSIZE_512           (0x3 << 4)
+#define  FIT_QCMD_BASE_ADDRESS_MASK     (0xFFFFFFFFFFFFFFC0ull)
+
+
+/*
+ * Control, 32-bit r/w
+ */
+#define FIT_CONTROL                 0x500u
+#ifndef SKD_OMIT_FROM_SRC_DIST
+#define  FIT_CR_HARD_RESET              (1u << 0u)
+#endif /* SKD_OMIT_FROM_SRC_DIST */
+#define  FIT_CR_SOFT_RESET              (1u << 1u)
+#ifndef SKD_OMIT_FROM_SRC_DIST
+#define	 FIT_CR_DIS_TIMESTAMPS		(1u << 6u)
+#endif /* SKD_OMIT_FROM_SRC_DIST */
+#define  FIT_CR_ENABLE_INTERRUPTS       (1u << 7u)
+
+/*
+ * Status, 32-bit, r/o
+ */
+#define FIT_STATUS			0x510u
+#define FIT_SR_DRIVE_STATE_MASK		0x000000FFu
+#ifndef SKD_OMIT_FROM_SRC_DIST
+#define	FIT_SR_SIGNATURE		(0xFF << 8)
+#define	FIT_SR_PIO_DMA			(1 << 16)
+#endif /* SKD_OMIT_FROM_SRC_DIST */
+#define FIT_SR_DRIVE_OFFLINE		0x00
+#define FIT_SR_DRIVE_INIT		0x01
+/* #define FIT_SR_DRIVE_READY		0x02 */
+#define FIT_SR_DRIVE_ONLINE		0x03
+#define FIT_SR_DRIVE_BUSY		0x04
+#define FIT_SR_DRIVE_FAULT		0x05
+#define FIT_SR_DRIVE_DEGRADED		0x06
+#define FIT_SR_PCIE_LINK_DOWN		0x07
+#define FIT_SR_DRIVE_SOFT_RESET		0x08
+#define FIT_SR_DRIVE_INIT_FAULT		0x09
+#define FIT_SR_DRIVE_BUSY_SANITIZE	0x0A
+#define FIT_SR_DRIVE_BUSY_ERASE		0x0B
+#define FIT_SR_DRIVE_FW_BOOTING		0x0C
+#define FIT_SR_DRIVE_NEED_FW_DOWNLOAD	0xFE
+#define FIT_SR_DEVICE_MISSING           0xFF
+#define FIT_SR__RESERVED		0xFFFFFF00u
+
+#ifndef SKD_OMIT_FROM_SRC_DIST
+/*
+ * FIT_STATUS - Status register data definition
+ */
+#define	FIT_SR_STATE_MASK		(0xFF << 0)
+#define	FIT_SR_SIGNATURE		(0xFF << 8)
+#define	FIT_SR_PIO_DMA			(1 << 16)
+#endif /* SKD_OMIT_FROM_SRC_DIST */
+
+
+/*
+ * Interrupt status, 32-bit r/w1c (w1c ==> write 1 to clear)
+ */
+#define FIT_INT_STATUS_HOST         0x520u
+#define  FIT_ISH_FW_STATE_CHANGE        (1u << 0u)
+#define  FIT_ISH_COMPLETION_POSTED      (1u << 1u)
+#define  FIT_ISH_MSG_FROM_DEV           (1u << 2u)
+#define  FIT_ISH_UNDEFINED_3            (1u << 3u)
+#define  FIT_ISH_UNDEFINED_4            (1u << 4u)
+#define  FIT_ISH_Q0_FULL                (1u << 5u)
+#define  FIT_ISH_Q1_FULL                (1u << 6u)
+#define  FIT_ISH_Q2_FULL                (1u << 7u)
+#define  FIT_ISH_Q3_FULL                (1u << 8u)
+#define  FIT_ISH_QCMD_FIFO_OVERRUN      (1u << 9u)
+#define  FIT_ISH_BAD_EXP_ROM_READ       (1u << 10u)
+
+
+#define FIT_INT_DEF_MASK	\
+		(FIT_ISH_FW_STATE_CHANGE | \
+		 FIT_ISH_COMPLETION_POSTED | \
+		 FIT_ISH_MSG_FROM_DEV | \
+		 FIT_ISH_Q0_FULL | \
+		 FIT_ISH_Q1_FULL | \
+		 FIT_ISH_Q2_FULL | \
+		 FIT_ISH_Q3_FULL | \
+		 FIT_ISH_QCMD_FIFO_OVERRUN | \
+		 FIT_ISH_BAD_EXP_ROM_READ)
+
+#define FIT_INT_QUEUE_FULL	\
+		(FIT_ISH_Q0_FULL | \
+		FIT_ISH_Q1_FULL | \
+		FIT_ISH_Q2_FULL | \
+		FIT_ISH_Q3_FULL)
+
+
+#define MSI_MSG_NWL_ERROR_0             0x00000000
+#define MSI_MSG_NWL_ERROR_1             0x00000001
+#define MSI_MSG_NWL_ERROR_2             0x00000002
+#define MSI_MSG_NWL_ERROR_3             0x00000003
+#define MSI_MSG_STATE_CHANGE            0x00000004
+#define MSI_MSG_COMPLETION_POSTED       0x00000005
+#define MSI_MSG_MSG_FROM_DEV            0x00000006
+#define MSI_MSG_RESERVED_0              0x00000007
+#define MSI_MSG_RESERVED_1              0x00000008
+#define MSI_MSG_QUEUE_0_FULL            0x00000009
+#define MSI_MSG_QUEUE_1_FULL            0x0000000A
+#define MSI_MSG_QUEUE_2_FULL            0x0000000B
+#define MSI_MSG_QUEUE_3_FULL            0x0000000C
+
+
+
+#define FIT_INT_RESERVED_MASK	\
+		(FIT_ISH_UNDEFINED_3 | \
+		FIT_ISH_UNDEFINED_4)
+/*
+ * Interrupt mask, 32-bit r/w
+ * Bit definitions are the same as FIT_INT_STATUS_HOST
+ */
+#define FIT_INT_MASK_HOST           0x528u
+
+
+/*
+ * Message to device, 32-bit r/w
+ */
+#define FIT_MSG_TO_DEVICE           0x540u
+
+/*
+ * Message from device, 32-bit, r/o
+ */
+#define FIT_MSG_FROM_DEVICE         0x548u
+
+
+/*
+ * 32-bit messages to/from device, composition/extraction macros
+ */
+#define FIT_MXD_CONS(TYPE, PARAM, DATA) \
+	((((TYPE)  & 0xFFu) << 24u) | \
+	(((PARAM) & 0xFFu) << 16u) | \
+	(((DATA)  & 0xFFFFu) << 0u))
+#define FIT_MXD_TYPE(MXD)               (((MXD) >> 24u) & 0xFFu)
+#define FIT_MXD_PARAM(MXD)              (((MXD) >> 16u) & 0xFFu)
+#define FIT_MXD_DATA(MXD)               (((MXD) >> 0u) & 0xFFFFu)
+
+
+/*
+ * Types of messages to/from device
+ */
+#define FIT_MTD_FITFW_INIT              0x01u
+#define FIT_MTD_GET_CMDQ_DEPTH          0x02u
+#define FIT_MTD_SET_COMPQ_DEPTH         0x03u
+#define FIT_MTD_SET_COMPQ_ADDR          0x04u
+#define FIT_MTD_ARM_QUEUE               0x05u
+#define FIT_MTD_CMD_LOG_HOST_ID         0x07u
+#define FIT_MTD_CMD_LOG_TIME_STAMP_LO   0x08u
+#define FIT_MTD_CMD_LOG_TIME_STAMP_HI   0x09u
+#define FIT_MFD_SMART_EXCEEDED          0x10u
+#define FIT_MFD_POWER_DOWN		        0x11u
+#define FIT_MFD_OFFLINE			        0x12u
+#define FIT_MFD_ONLINE			        0x13u
+#define FIT_MFD_FW_RESTARTING		    0x14u
+#define FIT_MFD_PM_ACTIVE		        0x15u
+#define FIT_MFD_PM_STANDBY		        0x16u
+#define FIT_MFD_PM_SLEEP		        0x17u
+#define FIT_MFD_CMD_PROGRESS		    0x18u
+
+#ifndef SKD_OMIT_FROM_SRC_DIST
+#define FIT_MTD_DEBUG                   0xFEu
+#define FIT_MFD_DEBUG                   0xFFu
+#endif /* SKD_OMIT_FROM_SRC_DIST */
+
+#define FIT_MFD_MASK			(0xFFu)
+#define FIT_MFD_DATA_MASK		(0xFFu)
+#define FIT_MFD_MSG(x)			(((x) >> 24) & FIT_MFD_MASK)
+#define FIT_MFD_DATA(x)			((x) & FIT_MFD_MASK)
+
+
+/*
+ * Extra arg to FIT_MSG_TO_DEVICE, 64-bit r/w
+ * Used to set completion queue address (FIT_MTD_SET_COMPQ_ADDR)
+ * (was Response buffer in docs)
+ */
+#define FIT_MSG_TO_DEVICE_ARG       0x580u
+
+/*
+ * Hardware (ASIC) version, 32-bit r/o
+ */
+#define FIT_HW_VERSION              0x588u
+
+/*
+ * Scatter/gather list descriptor.
+ * 32-bytes and must be aligned on a 32-byte boundary.
+ * All fields are in little endian order.
+ */
+struct fit_sg_descriptor {
+	uint32_t control;
+	uint32_t byte_count;
+	uint64_t host_side_addr;
+	uint64_t dev_side_addr;
+	uint64_t next_desc_ptr;
+};
+
+#define FIT_SGD_CONTROL_NOT_LAST    0x000u
+#define FIT_SGD_CONTROL_LAST        0x40Eu
+
+/*
+ * Header at the beginning of a FIT message. The header
+ * is followed by SSDI requests each 64 bytes.
+ * A FIT message can be up to 512 bytes long and must start
+ * on a 64-byte boundary.
+ */
+struct fit_msg_hdr {
+	uint8_t protocol_id;
+	uint8_t num_protocol_cmds_coalesced;
+	uint8_t _reserved[62];
+};
+
+#define FIT_PROTOCOL_ID_FIT     1
+#define FIT_PROTOCOL_ID_SSDI    2
+#define FIT_PROTOCOL_ID_SOFIT   3
+
+
+#define FIT_PROTOCOL_MINOR_VER(mtd_val) ((mtd_val >> 16) & 0xF)
+#define FIT_PROTOCOL_MAJOR_VER(mtd_val) ((mtd_val >> 20) & 0xF)
+
+#ifndef SKD_OMIT_FROM_SRC_DIST
+/*
+ * Format of a completion entry. The completion queue is circular
+ * and must have at least as many entries as the maximum number
+ * of commands that may be issued to the device.
+ *
+ * There are no head/tail pointers. The cycle value is used to
+ * infer the presence of new completion records.
+ * Initially the cycle in all entries is 0, the index is 0, and
+ * the cycle value to expect is 1. When completions are added
+ * their cycle values are set to 1. When the index wraps the
+ * cycle value to expect is incremented.
+ *
+ * Command_context is opaque and taken verbatim from the SSDI command.
+ * All other fields are big endian.
+ */
+#endif /* SKD_OMIT_FROM_SRC_DIST */
+#define FIT_PROTOCOL_VERSION_0          0
+
+/*
+ *  Protocol major version 1 completion entry.
+ *  The major protocol version is found in bits
+ *  20-23 of the FIT_MTD_FITFW_INIT response.
+ */
+struct fit_completion_entry_v1 {
+	uint32_t	num_returned_bytes;
+	uint16_t	tag;
+	uint8_t		status;  /* SCSI status */
+	uint8_t		cycle;
+};
+#define FIT_PROTOCOL_VERSION_1          1
+#define FIT_PROTOCOL_VERSION_CURRENT    FIT_PROTOCOL_VERSION_1
+
+struct fit_comp_error_info {
+	uint8_t		type:7; /* 00: Bits0-6 indicates the type of sense data. */
+	uint8_t		valid:1; /* 00: Bit 7 := 1 ==> info field is valid. */
+	uint8_t		reserved0; /* 01: Obsolete field */
+	uint8_t		key:4; /* 02: Bits0-3 indicate the sense key. */
+	uint8_t		reserved2:1; /* 02: Reserved bit. */
+	uint8_t		bad_length:1; /* 02: Incorrect Length Indicator */
+	uint8_t		end_medium:1; /* 02: End of Medium */
+	uint8_t		file_mark:1; /* 02: Filemark */
+	uint8_t		info[4]; /* 03: */
+	uint8_t		reserved1; /* 07: Additional Sense Length */
+	uint8_t		cmd_spec[4]; /* 08: Command Specific Information */
+	uint8_t		code; /* 0C: Additional Sense Code */
+	uint8_t		qual; /* 0D: Additional Sense Code Qualifier */
+	uint8_t		fruc; /* 0E: Field Replaceable Unit Code */
+	uint8_t		sks_high:7; /* 0F: Sense Key Specific (MSB) */
+	uint8_t		sks_valid:1; /* 0F: Sense Key Specific Valid */
+	uint16_t	sks_low; /* 10: Sense Key Specific (LSW) */
+	uint16_t	reserved3; /* 12: Part of additional sense bytes (unused) */
+	uint16_t	uec; /* 14: Additional Sense Bytes */
+	uint64_t	per; /* 16: Additional Sense Bytes */
+	uint8_t		reserved4[2]; /* 1E: Additional Sense Bytes (unused) */
+};
+
+
+/* Task management constants */
+#define SOFT_TASK_SIMPLE            0x00
+#define SOFT_TASK_HEAD_OF_QUEUE     0x01
+#define SOFT_TASK_ORDERED           0x02
+
+
+/* Version zero has the last 32 bits reserved,
+ * Version one has the last 32 bits sg_list_len_bytes;
+ */
+struct skd_command_header {
+	uint64_t	sg_list_dma_address;
+	uint16_t	tag;
+	uint8_t		attribute;
+	uint8_t		add_cdb_len;     /* In 32 bit words */
+	uint32_t	sg_list_len_bytes;
+};
+
+struct skd_scsi_request {
+	struct		skd_command_header hdr;
+	unsigned char	cdb[16];
+/*	unsigned char _reserved[16]; */
+};
+
+struct driver_inquiry_data {
+	uint8_t		peripheral_device_type:5;
+	uint8_t		qualifier:3;
+	uint8_t		page_code;
+	uint16_t	page_length;
+	uint16_t	pcie_bus_number;
+	uint8_t		pcie_device_number;
+	uint8_t		pcie_function_number;
+	uint8_t		pcie_link_speed;
+	uint8_t		pcie_link_lanes;
+	uint16_t	pcie_vendor_id;
+	uint16_t	pcie_device_id;
+	uint16_t	pcie_subsystem_vendor_id;
+	uint16_t	pcie_subsystem_device_id;
+	uint8_t		reserved1[2];
+	uint8_t		reserved2[3];
+	uint8_t		driver_version_length;
+	uint8_t		driver_version[0x14];
+};
+
+#pragma pack(pop, s1120_h)
+
+#endif /* SKD_S1120_H */
-- 
cgit 


From 7badfb1c34f85e2b68252e4596d96e9b76f2b0ac Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Thu, 17 Oct 2013 16:38:30 -0600
Subject: block: disable cpqarray in Kconfig

Mike writes:

"cpqarray hasn't been used in over 12 years. It's doubtful that anyone
 still uses the board. It's time the driver was removed from the mainline
 kernel.  The only updates these days are minor and mostly done by people
 outside of HP."

If nobody yells, we'll remove it from the kernel tree completely
for 3.15.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index 555aed0b50dd..f616109a57a6 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -107,7 +107,7 @@ source "drivers/block/mtip32xx/Kconfig"
 
 config BLK_CPQ_DA
 	tristate "Compaq SMART2 support"
-	depends on PCI && VIRT_TO_BUS
+	depends on PCI && VIRT_TO_BUS && 0
 	help
 	  This is the driver for Compaq Smart Array controllers.  Everyone
 	  using these boards should say Y here.  See the file
-- 
cgit 


From 69babf05cbe909a9a520b39772655f88b407f257 Mon Sep 17 00:00:00 2001
From: Lars Ellenberg <lars.ellenberg@linbit.com>
Date: Wed, 23 Oct 2013 10:59:15 +0200
Subject: drbd: fix NULL pointer deref in module init error path

If we want to iterate over the (as of yet still empty) list in the
cleanup path, we need to initialize the list before the first goto fail.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/drbd/drbd_main.c | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 55635edf563b..9e3818b1bc83 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -2750,13 +2750,6 @@ int __init drbd_init(void)
 		return err;
 	}
 
-	err = drbd_genl_register();
-	if (err) {
-		printk(KERN_ERR "drbd: unable to register generic netlink family\n");
-		goto fail;
-	}
-
-
 	register_reboot_notifier(&drbd_notifier);
 
 	/*
@@ -2767,6 +2760,15 @@ int __init drbd_init(void)
 	drbd_proc = NULL; /* play safe for drbd_cleanup */
 	idr_init(&minors);
 
+	rwlock_init(&global_state_lock);
+	INIT_LIST_HEAD(&drbd_tconns);
+
+	err = drbd_genl_register();
+	if (err) {
+		printk(KERN_ERR "drbd: unable to register generic netlink family\n");
+		goto fail;
+	}
+
 	err = drbd_create_mempools();
 	if (err)
 		goto fail;
@@ -2778,9 +2780,6 @@ int __init drbd_init(void)
 		goto fail;
 	}
 
-	rwlock_init(&global_state_lock);
-	INIT_LIST_HEAD(&drbd_tconns);
-
 	retry.wq = create_singlethread_workqueue("drbd-reissue");
 	if (!retry.wq) {
 		printk(KERN_ERR "drbd: unable to create retry workqueue\n");
-- 
cgit 


From b874d231e115af9b2c4a7ed1a4c5ae2db8a21aaf Mon Sep 17 00:00:00 2001
From: Philipp Reisner <philipp.reisner@linbit.com>
Date: Wed, 23 Oct 2013 10:59:16 +0200
Subject: drbd: Fix an connection drop issue after enabling allow-two-primaries

Since drbd-8.4.0 it is possible to change the allow-two-primaries
network option while the connection is established.

The sequence code used to partially order packets from the
data socket with packets from the meta-data socket, still assued
that the allow-two-primaries option is constant while the
connection is established.

I.e.
On a node that has the RESOLVE_CONFLICTS bits set, after enabling
allow-two-primaries, when receiving the next data packet it timed out
while waiting for the necessary packets on the data socket to arrive
(wait_for_and_update_peer_seq() function).

Fixed that by always tracking the sequence number, but only waiting
for it if allow-two-primaries is set.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/drbd/drbd_receiver.c | 39 ++++++++++++++++----------------------
 1 file changed, 16 insertions(+), 23 deletions(-)

diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index cc29cd3bf78b..12c59eb3b127 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -1890,29 +1890,11 @@ static u32 seq_max(u32 a, u32 b)
 	return seq_greater(a, b) ? a : b;
 }
 
-static bool need_peer_seq(struct drbd_conf *mdev)
-{
-	struct drbd_tconn *tconn = mdev->tconn;
-	int tp;
-
-	/*
-	 * We only need to keep track of the last packet_seq number of our peer
-	 * if we are in dual-primary mode and we have the resolve-conflicts flag set; see
-	 * handle_write_conflicts().
-	 */
-
-	rcu_read_lock();
-	tp = rcu_dereference(mdev->tconn->net_conf)->two_primaries;
-	rcu_read_unlock();
-
-	return tp && test_bit(RESOLVE_CONFLICTS, &tconn->flags);
-}
-
 static void update_peer_seq(struct drbd_conf *mdev, unsigned int peer_seq)
 {
 	unsigned int newest_peer_seq;
 
-	if (need_peer_seq(mdev)) {
+	if (test_bit(RESOLVE_CONFLICTS, &mdev->tconn->flags)) {
 		spin_lock(&mdev->peer_seq_lock);
 		newest_peer_seq = seq_max(mdev->peer_seq, peer_seq);
 		mdev->peer_seq = newest_peer_seq;
@@ -1972,22 +1954,31 @@ static int wait_for_and_update_peer_seq(struct drbd_conf *mdev, const u32 peer_s
 {
 	DEFINE_WAIT(wait);
 	long timeout;
-	int ret;
+	int ret = 0, tp;
 
-	if (!need_peer_seq(mdev))
+	if (!test_bit(RESOLVE_CONFLICTS, &mdev->tconn->flags))
 		return 0;
 
 	spin_lock(&mdev->peer_seq_lock);
 	for (;;) {
 		if (!seq_greater(peer_seq - 1, mdev->peer_seq)) {
 			mdev->peer_seq = seq_max(mdev->peer_seq, peer_seq);
-			ret = 0;
 			break;
 		}
+
 		if (signal_pending(current)) {
 			ret = -ERESTARTSYS;
 			break;
 		}
+
+		rcu_read_lock();
+		tp = rcu_dereference(mdev->tconn->net_conf)->two_primaries;
+		rcu_read_unlock();
+
+		if (!tp)
+			break;
+
+		/* Only need to wait if two_primaries is enabled */
 		prepare_to_wait(&mdev->seq_wait, &wait, TASK_INTERRUPTIBLE);
 		spin_unlock(&mdev->peer_seq_lock);
 		rcu_read_lock();
@@ -2228,8 +2219,10 @@ static int receive_Data(struct drbd_tconn *tconn, struct packet_info *pi)
 			}
 			goto out_interrupted;
 		}
-	} else
+	} else {
+		update_peer_seq(mdev, peer_seq);
 		spin_lock_irq(&mdev->tconn->req_lock);
+	}
 	list_add(&peer_req->w.list, &mdev->active_ee);
 	spin_unlock_irq(&mdev->tconn->req_lock);
 
-- 
cgit 


From 57737adc965e45fcb03662fe6f93f6efb19e2c0a Mon Sep 17 00:00:00 2001
From: Philipp Reisner <philipp.reisner@linbit.com>
Date: Wed, 23 Oct 2013 10:59:17 +0200
Subject: drbd: Fix adding of new minors with freshly created meta data

Online adding of new minors with freshly created meta data
to an resource with an established connection failed, with a
wrong state transition on one side on one side of the new minor.

Freshly created meta-data has a la_size (last agreed size) of 0.
When we online add such devices, the code wrongly got into
the code path for resyncing new storage that was added while
the disk was detached.

Fixed that by making the GREW from ZERO a special case.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/drbd/drbd_int.h | 3 ++-
 drivers/block/drbd/drbd_nl.c  | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h
index 2d7f608d181c..0e06f0c5dd1e 100644
--- a/drivers/block/drbd/drbd_int.h
+++ b/drivers/block/drbd/drbd_int.h
@@ -1474,7 +1474,8 @@ enum determine_dev_size {
 	DS_ERROR = -1,
 	DS_UNCHANGED = 0,
 	DS_SHRUNK = 1,
-	DS_GREW = 2
+	DS_GREW = 2,
+	DS_GREW_FROM_ZERO = 3,
 };
 extern enum determine_dev_size
 drbd_determine_dev_size(struct drbd_conf *, enum dds_flags, struct resize_parms *) __must_hold(local);
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 8cc1e640f485..37dad18ba153 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -955,7 +955,7 @@ drbd_determine_dev_size(struct drbd_conf *mdev, enum dds_flags flags, struct res
 	}
 
 	if (size > la_size_sect)
-		rv = DS_GREW;
+		rv = la_size_sect ? DS_GREW : DS_GREW_FROM_ZERO;
 	if (size < la_size_sect)
 		rv = DS_SHRUNK;
 
-- 
cgit 


From d2da5b0cb522c48f8e2f311e6e9b212535371b56 Mon Sep 17 00:00:00 2001
From: Lars Ellenberg <lars.ellenberg@linbit.com>
Date: Wed, 23 Oct 2013 10:59:18 +0200
Subject: drbd: fix decoding of bitmap vli rle for device sizes > 64 TB

Symptoms: disconnect after bitmap exchange due to
bitmap overflow (e:49731075554) while decoding bm RLE packet

In the decoding step of the variable length integer run length encoding
there was potentially an uncatched bitshift by wordsize (variable >> 64).

The result of which is "undefined" :(
(only "sometimes" the result is the desired 0)

Fix: don't do any bit shift magic for shift == 64, just assign.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/drbd/drbd_receiver.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 12c59eb3b127..6fa6673b36b3 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -4125,7 +4125,11 @@ recv_bm_rle_bits(struct drbd_conf *mdev,
 				(unsigned int)bs.buf_len);
 			return -EIO;
 		}
-		look_ahead >>= bits;
+		/* if we consumed all 64 bits, assign 0; >> 64 is "undefined"; */
+		if (likely(bits < 64))
+			look_ahead >>= bits;
+		else
+			look_ahead = 0;
 		have -= bits;
 
 		bits = bitstream_get_bits(&bs, &tmp, 64 - have);
-- 
cgit 


From 35f47ef1a1f069cd2f346314fb8212bb49571eac Mon Sep 17 00:00:00 2001
From: Lars Ellenberg <lars.ellenberg@linbit.com>
Date: Wed, 23 Oct 2013 10:59:19 +0200
Subject: drbd: avoid to shrink max_bio_size due to peer re-configuration

For a long time, the receiving side has spread "too large" incoming
requests over multiple bios.  No need to shrink our max_bio_size
(max_hw_sectors) if the peer is reconfigured to use a different storage.

The problem manifests itself if we are not the top of the device stack
(DRBD is used a LVM PV).

A hardware reconfiguration on the peer may cause the supported
max_bio_size to shrink, and the connection handshake would now
unnecessarily shrink the max_bio_size on the active node.

There is no way to notify upper layers that they have to "re-stack"
their limits. So they won't notice at all, and may keep submitting bios
that are suddenly considered "too large for device".

We already check for compatibility and ignore changes on the peer,
the code only was masked out unless we have a fully established connection.
We just need to allow it a bit earlier during the handshake.

Also consider max_hw_sectors in our merge bvec function, just in case.

Signed-off-by: Philipp Reisner <philipp.reisner@linbit.com>
Signed-off-by: Lars Ellenberg <lars.ellenberg@linbit.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/drbd/drbd_nl.c  | 4 ++--
 drivers/block/drbd/drbd_req.c | 3 +++
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c
index 37dad18ba153..c706d50a8b06 100644
--- a/drivers/block/drbd/drbd_nl.c
+++ b/drivers/block/drbd/drbd_nl.c
@@ -1132,9 +1132,9 @@ void drbd_reconsider_max_bio_size(struct drbd_conf *mdev)
 	/* We may ignore peer limits if the peer is modern enough.
 	   Because new from 8.3.8 onwards the peer can use multiple
 	   BIOs for a single peer_request */
-	if (mdev->state.conn >= C_CONNECTED) {
+	if (mdev->state.conn >= C_WF_REPORT_PARAMS) {
 		if (mdev->tconn->agreed_pro_version < 94)
-			peer = min( mdev->peer_max_bio_size, DRBD_MAX_SIZE_H80_PACKET);
+			peer = min(mdev->peer_max_bio_size, DRBD_MAX_SIZE_H80_PACKET);
 			/* Correct old drbd (up to 8.3.7) if it believes it can do more than 32KiB */
 		else if (mdev->tconn->agreed_pro_version == 94)
 			peer = DRBD_MAX_SIZE_H80_PACKET;
diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c
index c24379ffd4e3..fec7bef44994 100644
--- a/drivers/block/drbd/drbd_req.c
+++ b/drivers/block/drbd/drbd_req.c
@@ -1306,6 +1306,7 @@ int drbd_merge_bvec(struct request_queue *q, struct bvec_merge_data *bvm, struct
 	int backing_limit;
 
 	if (bio_size && get_ldev(mdev)) {
+		unsigned int max_hw_sectors = queue_max_hw_sectors(q);
 		struct request_queue * const b =
 			mdev->ldev->backing_bdev->bd_disk->queue;
 		if (b->merge_bvec_fn) {
@@ -1313,6 +1314,8 @@ int drbd_merge_bvec(struct request_queue *q, struct bvec_merge_data *bvm, struct
 			limit = min(limit, backing_limit);
 		}
 		put_ldev(mdev);
+		if ((limit >> 9) > max_hw_sectors)
+			limit = max_hw_sectors << 9;
 	}
 	return limit;
 }
-- 
cgit 


From e35f38bf73b6c9ec9521d9deb94198a419692db5 Mon Sep 17 00:00:00 2001
From: Philip J Kelleher <pjk1939@linux.vnet.ibm.com>
Date: Fri, 18 Oct 2013 17:11:46 -0500
Subject: rsxx: Disallow discards from being unmapped.

This patch fixes a bug in which discards were always
calling pci_unmap_page. Discards should never call the
pci_unmap_page function call because they are never mapped.

This caused a race condition on PowerPC systems when issuing
discards, writes, and reads all at the same time. The
pci_map_page function would eventually map logical address
0 for a read or write. Discards are always assigned a DMA
address of 0 because they are never mapped. So if
pci_map_page mapped address 0 for a DMA and a discard was
"unmapped" then the address would be freed and would cause
an EEH event to occur when Hardware accesses the address.

This was injected/uncovered in commit:
b347f9cf0bc8d42ee95ba1d3837fd93045ab336b

The pci_dma_mapping_error function declares -1 a DMA_ERROR
not 0 like initially thought So before we would never unmap
discards because they were considered NULL.

This patch should fall on top of commit id:
fc1967bb08a6184ed44ef990e1dd4389901b809c

Also, the driver version is being up dated.

Signed-off-by: Philip J Kelleher <pjk1939@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/rsxx/dma.c       | 27 ++++++++++++++++-----------
 drivers/block/rsxx/rsxx_priv.h |  2 +-
 2 files changed, 17 insertions(+), 12 deletions(-)

diff --git a/drivers/block/rsxx/dma.c b/drivers/block/rsxx/dma.c
index 4103601ae675..fc88ba3e1bd2 100644
--- a/drivers/block/rsxx/dma.c
+++ b/drivers/block/rsxx/dma.c
@@ -223,12 +223,14 @@ static void dma_intr_coal_auto_tune(struct rsxx_cardinfo *card)
 /*----------------- RSXX DMA Handling -------------------*/
 static void rsxx_free_dma(struct rsxx_dma_ctrl *ctrl, struct rsxx_dma *dma)
 {
-	if (!pci_dma_mapping_error(ctrl->card->dev, dma->dma_addr)) {
-		pci_unmap_page(ctrl->card->dev, dma->dma_addr,
-			       get_dma_size(dma),
-			       dma->cmd == HW_CMD_BLK_WRITE ?
-					   PCI_DMA_TODEVICE :
-					   PCI_DMA_FROMDEVICE);
+	if (dma->cmd != HW_CMD_BLK_DISCARD) {
+		if (!pci_dma_mapping_error(ctrl->card->dev, dma->dma_addr)) {
+			pci_unmap_page(ctrl->card->dev, dma->dma_addr,
+				       get_dma_size(dma),
+				       dma->cmd == HW_CMD_BLK_WRITE ?
+						   PCI_DMA_TODEVICE :
+						   PCI_DMA_FROMDEVICE);
+		}
 	}
 
 	kmem_cache_free(rsxx_dma_pool, dma);
@@ -1057,11 +1059,14 @@ int rsxx_eeh_save_issued_dmas(struct rsxx_cardinfo *card)
 			else
 				card->ctrl[i].stats.reads_issued--;
 
-			pci_unmap_page(card->dev, dma->dma_addr,
-				       get_dma_size(dma),
-				       dma->cmd == HW_CMD_BLK_WRITE ?
-				       PCI_DMA_TODEVICE :
-				       PCI_DMA_FROMDEVICE);
+			if (dma->cmd != HW_CMD_BLK_DISCARD) {
+				pci_unmap_page(card->dev, dma->dma_addr,
+					       get_dma_size(dma),
+					       dma->cmd == HW_CMD_BLK_WRITE ?
+					       PCI_DMA_TODEVICE :
+					       PCI_DMA_FROMDEVICE);
+			}
+
 			list_add_tail(&dma->list, &issued_dmas[i]);
 			push_tracker(card->ctrl[i].trackers, j);
 			cnt++;
diff --git a/drivers/block/rsxx/rsxx_priv.h b/drivers/block/rsxx/rsxx_priv.h
index 913740e53d31..23fa05630fef 100644
--- a/drivers/block/rsxx/rsxx_priv.h
+++ b/drivers/block/rsxx/rsxx_priv.h
@@ -52,7 +52,7 @@ struct proc_cmd;
 #define RS70_PCI_REV_SUPPORTED	4
 
 #define DRIVER_NAME "rsxx"
-#define DRIVER_VERSION "4.0.1.2498"
+#define DRIVER_VERSION "4.0.2.2510"
 
 /* Block size is 4096 */
 #define RSXX_HW_BLK_SHIFT		12
-- 
cgit 


From 8c49a77ca451541938f90008f419fca965b76b72 Mon Sep 17 00:00:00 2001
From: Philip J Kelleher <pjk1939@linux.vnet.ibm.com>
Date: Fri, 18 Oct 2013 17:12:35 -0500
Subject: rsxx: Fix possible kernel panic with invalid config.

This patch fixes a possible Kernel Panic on driver load if
the configuration on the card is messed up or not yet set.
The driver could possible give a 32 bit unsigned all Fs to
the kernel as the device's block size.

Now we only write the block size to the kernel if the
configuration from the card is valid.

Also, driver version is being updated.

Signed-off-by: Philip J Kelleher <pjk1939@linux.vnet.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/rsxx/dev.c       | 8 +++++---
 drivers/block/rsxx/rsxx_priv.h | 2 +-
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/block/rsxx/dev.c b/drivers/block/rsxx/dev.c
index d7af441880be..2284f5d3a54a 100644
--- a/drivers/block/rsxx/dev.c
+++ b/drivers/block/rsxx/dev.c
@@ -295,13 +295,15 @@ int rsxx_setup_dev(struct rsxx_cardinfo *card)
 		return -ENOMEM;
 	}
 
-	blk_size = card->config.data.block_size;
+	if (card->config_valid) {
+		blk_size = card->config.data.block_size;
+		blk_queue_dma_alignment(card->queue, blk_size - 1);
+		blk_queue_logical_block_size(card->queue, blk_size);
+	}
 
 	blk_queue_make_request(card->queue, rsxx_make_request);
 	blk_queue_bounce_limit(card->queue, BLK_BOUNCE_ANY);
-	blk_queue_dma_alignment(card->queue, blk_size - 1);
 	blk_queue_max_hw_sectors(card->queue, blkdev_max_hw_sectors);
-	blk_queue_logical_block_size(card->queue, blk_size);
 	blk_queue_physical_block_size(card->queue, RSXX_HW_BLK_SIZE);
 
 	queue_flag_set_unlocked(QUEUE_FLAG_NONROT, card->queue);
diff --git a/drivers/block/rsxx/rsxx_priv.h b/drivers/block/rsxx/rsxx_priv.h
index 23fa05630fef..6bbc64d0f690 100644
--- a/drivers/block/rsxx/rsxx_priv.h
+++ b/drivers/block/rsxx/rsxx_priv.h
@@ -52,7 +52,7 @@ struct proc_cmd;
 #define RS70_PCI_REV_SUPPORTED	4
 
 #define DRIVER_NAME "rsxx"
-#define DRIVER_VERSION "4.0.2.2510"
+#define DRIVER_VERSION "4.0.3.2516"
 
 /* Block size is 4096 */
 #define RSXX_HW_BLK_SHIFT		12
-- 
cgit 


From f721bb0dbd3fd37f16c49c97155f40f22496a970 Mon Sep 17 00:00:00 2001
From: Akhil Bhansali <bhansaliakhil@gmail.com>
Date: Wed, 23 Oct 2013 13:00:08 +0100
Subject: skd: Fix checkpatch ERRORS and removed unused functions

This patch fixes checkpatch.pl errors for assignment in if condition.
It also removes unused readq / readl function calls.

As Andrew had disabled the compilation of drivers for 32 bit,
I have modified format specifiers in few VPRINTKs to avoid warnings
during 64 bit compilation.

Signed-off-by: Akhil Bhansali <abhansali@stec-inc.com>
Reviewed-by: Ramprasad Chinthekindi <rchinthekindi@stec-inc.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/skd_main.c | 53 ++++++++++++++++++++++++++++--------------------
 1 file changed, 31 insertions(+), 22 deletions(-)

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index 3110f68ecedd..308bf474dc39 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -420,14 +420,10 @@ static inline void skd_reg_write32(struct skd_device *skdev, u32 val,
 	if (likely(skdev->dbg_level < 2)) {
 		writel(val, skdev->mem_map[1] + offset);
 		barrier();
-		readl(skdev->mem_map[1] + offset);
-		barrier();
 	} else {
 		barrier();
 		writel(val, skdev->mem_map[1] + offset);
 		barrier();
-		readl(skdev->mem_map[1] + offset);
-		barrier();
 		VPRINTK(skdev, "offset %x = %x\n", offset, val);
 	}
 }
@@ -438,14 +434,10 @@ static inline void skd_reg_write64(struct skd_device *skdev, u64 val,
 	if (likely(skdev->dbg_level < 2)) {
 		writeq(val, skdev->mem_map[1] + offset);
 		barrier();
-		readq(skdev->mem_map[1] + offset);
-		barrier();
 	} else {
 		barrier();
 		writeq(val, skdev->mem_map[1] + offset);
 		barrier();
-		readq(skdev->mem_map[1] + offset);
-		barrier();
 		VPRINTK(skdev, "offset %x = %016llx\n", offset, val);
 	}
 }
@@ -1656,18 +1648,36 @@ static int skd_ioctl_sg_io(struct skd_device *skdev, fmode_t mode,
 		goto out;
 	}
 
-	if ((rc = skd_sg_io_get_and_check_args(skdev, &sksgio)) ||
-	    (rc = skd_sg_io_obtain_skspcl(skdev, &sksgio)) ||
-	    (rc = skd_sg_io_prep_buffering(skdev, &sksgio)) ||
-	    (rc = skd_sg_io_copy_buffer(skdev, &sksgio, SG_DXFER_TO_DEV)))
+	rc = skd_sg_io_get_and_check_args(skdev, &sksgio);
+	if (rc)
+		goto out;
+
+	rc = skd_sg_io_obtain_skspcl(skdev, &sksgio);
+	if (rc)
+		goto out;
+
+	rc = skd_sg_io_prep_buffering(skdev, &sksgio);
+	if (rc)
+		goto out;
+
+	rc = skd_sg_io_copy_buffer(skdev, &sksgio, SG_DXFER_TO_DEV);
+	if (rc)
 		goto out;
 
-	if ((rc = skd_sg_io_send_fitmsg(skdev, &sksgio)) ||
-	    (rc = skd_sg_io_await(skdev, &sksgio)))
+	rc = skd_sg_io_send_fitmsg(skdev, &sksgio);
+	if (rc)
 		goto out;
 
-	if ((rc = skd_sg_io_copy_buffer(skdev, &sksgio, SG_DXFER_FROM_DEV)) ||
-	    (rc = skd_sg_io_put_status(skdev, &sksgio)))
+	rc = skd_sg_io_await(skdev, &sksgio);
+	if (rc)
+		goto out;
+
+	rc = skd_sg_io_copy_buffer(skdev, &sksgio, SG_DXFER_FROM_DEV);
+	if (rc)
+		goto out;
+
+	rc = skd_sg_io_put_status(skdev, &sksgio);
+	if (rc)
 		goto out;
 
 	rc = 0;
@@ -4556,11 +4566,10 @@ static int skd_cons_skmsg(struct skd_device *skdev)
 	int rc = 0;
 	u32 i;
 
-	VPRINTK(skdev, "skmsg_table kzalloc, struct %u, count %u total %lu\n",
+	VPRINTK(skdev, "skmsg_table kzalloc, struct %lu, count %u total %lu\n",
 		sizeof(struct skd_fitmsg_context),
 		skdev->num_fitmsg_context,
-		(unsigned long) sizeof(struct skd_fitmsg_context) *
-					skdev->num_fitmsg_context);
+		sizeof(struct skd_fitmsg_context) * skdev->num_fitmsg_context);
 
 	skdev->skmsg_table = kzalloc(sizeof(struct skd_fitmsg_context)
 				     *skdev->num_fitmsg_context, GFP_KERNEL);
@@ -4611,7 +4620,7 @@ static int skd_cons_skreq(struct skd_device *skdev)
 	int rc = 0;
 	u32 i;
 
-	VPRINTK(skdev, "skreq_table kzalloc, struct %u, count %u total %u\n",
+	VPRINTK(skdev, "skreq_table kzalloc, struct %lu, count %u total %lu\n",
 		sizeof(struct skd_request_context),
 		skdev->num_req_context,
 		sizeof(struct skd_request_context) * skdev->num_req_context);
@@ -4623,7 +4632,7 @@ static int skd_cons_skreq(struct skd_device *skdev)
 		goto err_out;
 	}
 
-	VPRINTK(skdev, "alloc sg_table sg_per_req %u scatlist %u total %u\n",
+	VPRINTK(skdev, "alloc sg_table sg_per_req %u scatlist %lu total %lu\n",
 		skdev->sgs_per_request, sizeof(struct scatterlist),
 		skdev->sgs_per_request * sizeof(struct scatterlist));
 
@@ -4668,7 +4677,7 @@ static int skd_cons_skspcl(struct skd_device *skdev)
 	int rc = 0;
 	u32 i, nbytes;
 
-	VPRINTK(skdev, "skspcl_table kzalloc, struct %u, count %u total %u\n",
+	VPRINTK(skdev, "skspcl_table kzalloc, struct %lu, count %u total %lu\n",
 		sizeof(struct skd_special_context),
 		skdev->n_special,
 		sizeof(struct skd_special_context) * skdev->n_special);
-- 
cgit 


From 2e44b42718ac49a397324a360df4ecab617b3fe2 Mon Sep 17 00:00:00 2001
From: rchinthekindi <rchinthekindi@stec-inc.com>
Date: Thu, 24 Oct 2013 12:51:23 +0100
Subject: skd: Replaced custom debug PRINTKs with pr_debug

Replaced DPRINTK() and VPRINTK() with pr_debug().

Signed-off-by: Ramprasad C <ramprasad.chinthekindi@hgst.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/skd_main.c | 691 ++++++++++++++++++++++++++++-------------------
 1 file changed, 407 insertions(+), 284 deletions(-)

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index 308bf474dc39..ab17bff6b4f9 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -68,14 +68,6 @@ enum {
 	SKD_FLUSH_DATA_SECOND,
 };
 
-#define DPRINTK(skdev, fmt, args ...) \
-	do { \
-		if (unlikely((skdev)->dbg_level > 0)) {	\
-			pr_err("%s:%s:%d " fmt, (skdev)->name,	\
-			       __func__, __LINE__, ## args); \
-		} \
-	} while (0)
-
 #define SKD_ASSERT(expr) \
 	do { \
 		if (unlikely(!(expr))) { \
@@ -84,15 +76,6 @@ enum {
 		} \
 	} while (0)
 
-#define VPRINTK(skdev, fmt, args ...) \
-	do { \
-		if (unlikely((skdev)->dbg_level > 1)) {	\
-			pr_err("%s:%s:%d " fmt, (skdev)->name,	\
-			       __func__, __LINE__, ## args); \
-		} \
-	} while (0)
-
-
 #define DRV_NAME "skd"
 #define DRV_VERSION "2.2.1"
 #define DRV_BUILD_ID "0260"
@@ -408,7 +391,8 @@ static inline u32 skd_reg_read32(struct skd_device *skdev, u32 offset)
 		barrier();
 		val = readl(skdev->mem_map[1] + offset);
 		barrier();
-		VPRINTK(skdev, "offset %x = %x\n", offset, val);
+		pr_debug("%s:%s:%d offset %x = %x\n",
+			 skdev->name, __func__, __LINE__, offset, val);
 		return val;
 	}
 
@@ -424,7 +408,8 @@ static inline void skd_reg_write32(struct skd_device *skdev, u32 val,
 		barrier();
 		writel(val, skdev->mem_map[1] + offset);
 		barrier();
-		VPRINTK(skdev, "offset %x = %x\n", offset, val);
+		pr_debug("%s:%s:%d offset %x = %x\n",
+			 skdev->name, __func__, __LINE__, offset, val);
 	}
 }
 
@@ -438,7 +423,8 @@ static inline void skd_reg_write64(struct skd_device *skdev, u64 val,
 		barrier();
 		writeq(val, skdev->mem_map[1] + offset);
 		barrier();
-		VPRINTK(skdev, "offset %x = %016llx\n", offset, val);
+		pr_debug("%s:%s:%d offset %x = %016llx\n",
+			 skdev->name, __func__, __LINE__, offset, val);
 	}
 }
 
@@ -764,15 +750,17 @@ static void skd_request_fn(struct request_queue *q)
 			if (io_flags & REQ_FUA)
 				fua++;
 
-			VPRINTK(skdev,
-				"new req=%p lba=%u(0x%x) count=%u(0x%x) dir=%d\n",
-				req, lba, lba, count, count, data_dir);
+			pr_debug("%s:%s:%d new req=%p lba=%u(0x%x) "
+				 "count=%u(0x%x) dir=%d\n",
+				 skdev->name, __func__, __LINE__,
+				 req, lba, lba, count, count, data_dir);
 		} else {
 			if (!list_empty(&skdev->flush_list)) {
 				/* Process data part of FLUSH request. */
 				bio = (struct bio *)skd_flush_cmd_dequeue(skdev);
 				flush++;
-				VPRINTK(skdev, "processing FLUSH request with data.\n");
+				pr_debug("%s:%s:%d processing FLUSH request with data.\n",
+					 skdev->name, __func__, __LINE__);
 			} else {
 				/* peek at our bio queue */
 				bio = bio_list_peek(&skdev->bio_queue);
@@ -787,9 +775,10 @@ static void skd_request_fn(struct request_queue *q)
 			data_dir = bio_data_dir(bio);
 			io_flags = bio->bi_rw;
 
-			VPRINTK(skdev,
-				"new bio=%p lba=%u(0x%x) count=%u(0x%x) dir=%d\n",
-				bio, lba, lba, count, count, data_dir);
+			pr_debug("%s:%s:%d new bio=%p lba=%u(0x%x) "
+				 "count=%u(0x%x) dir=%d\n",
+				 skdev->name, __func__, __LINE__,
+				 bio, lba, lba, count, count, data_dir);
 
 			if (io_flags & REQ_FLUSH)
 				flush++;
@@ -805,15 +794,17 @@ static void skd_request_fn(struct request_queue *q)
 
 		/* Are too many requets already in progress? */
 		if (skdev->in_flight >= skdev->cur_max_queue_depth) {
-			VPRINTK(skdev, "qdepth %d, limit %d\n",
-				skdev->in_flight, skdev->cur_max_queue_depth);
+			pr_debug("%s:%s:%d qdepth %d, limit %d\n",
+				 skdev->name, __func__, __LINE__,
+				 skdev->in_flight, skdev->cur_max_queue_depth);
 			break;
 		}
 
 		/* Is a skd_request_context available? */
 		skreq = skdev->skreq_free_list;
 		if (skreq == NULL) {
-			VPRINTK(skdev, "Out of req=%p\n", q);
+			pr_debug("%s:%s:%d Out of req=%p\n",
+				 skdev->name, __func__, __LINE__, q);
 			break;
 		}
 		SKD_ASSERT(skreq->state == SKD_REQ_STATE_IDLE);
@@ -822,7 +813,8 @@ static void skd_request_fn(struct request_queue *q)
 		/* Now we check to see if we can get a fit msg */
 		if (skmsg == NULL) {
 			if (skdev->skmsg_free_list == NULL) {
-				VPRINTK(skdev, "Out of msg\n");
+				pr_debug("%s:%s:%d Out of msg\n",
+					 skdev->name, __func__, __LINE__);
 				break;
 			}
 		}
@@ -862,7 +854,9 @@ static void skd_request_fn(struct request_queue *q)
 			/* Are there any FIT msg buffers available? */
 			skmsg = skdev->skmsg_free_list;
 			if (skmsg == NULL) {
-				VPRINTK(skdev, "Out of msg skdev=%p\n", skdev);
+				pr_debug("%s:%s:%d Out of msg skdev=%p\n",
+					 skdev->name, __func__, __LINE__,
+					 skdev);
 				break;
 			}
 			SKD_ASSERT(skmsg->state == SKD_MSG_STATE_IDLE);
@@ -945,7 +939,8 @@ static void skd_request_fn(struct request_queue *q)
 			 * only resource that has been allocated but might
 			 * not be used is that the FIT msg could be empty.
 			 */
-			DPRINTK(skdev, "error Out\n");
+			pr_debug("%s:%s:%d error Out\n",
+				 skdev->name, __func__, __LINE__);
 			skd_end_request(skdev, skreq, error);
 			continue;
 		}
@@ -970,8 +965,9 @@ skip_sg:
 		timo_slot = skreq->timeout_stamp & SKD_TIMEOUT_SLOT_MASK;
 		skdev->timeout_slot[timo_slot]++;
 		skdev->in_flight++;
-		VPRINTK(skdev, "req=0x%x busy=%d\n",
-			skreq->id, skdev->in_flight);
+		pr_debug("%s:%s:%d req=0x%x busy=%d\n",
+			 skdev->name, __func__, __LINE__,
+			 skreq->id, skdev->in_flight);
 
 		/*
 		 * If the FIT msg buffer is full send it.
@@ -993,8 +989,9 @@ skip_sg:
 	if (skmsg != NULL) {
 		/* Bigger than just a FIT msg header? */
 		if (skmsg->length > sizeof(struct fit_msg_hdr)) {
-			VPRINTK(skdev, "sending msg=%p, len %d\n",
-				skmsg, skmsg->length);
+			pr_debug("%s:%s:%d sending msg=%p, len %d\n",
+				 skdev->name, __func__, __LINE__,
+				 skmsg, skmsg->length);
 			skd_send_fitmsg(skdev, skmsg);
 		} else {
 			/*
@@ -1027,7 +1024,8 @@ static void skd_end_request_blk(struct skd_device *skdev,
 
 	if ((io_flags & REQ_DISCARD) &&
 		(skreq->discard_page == 1)) {
-		VPRINTK(skdev, "skd_end_request_blk, free the page!");
+		pr_debug("%s:%s:%d skd_end_request_blk, free the page!",
+			 skdev->name, __func__, __LINE__);
 		free_page((unsigned long)req->buffer);
 		req->buffer = NULL;
 	}
@@ -1041,7 +1039,8 @@ static void skd_end_request_blk(struct skd_device *skdev,
 		pr_err("(%s): Error cmd=%s sect=%u count=%u id=0x%x\n",
 		       skd_name(skdev), cmd, lba, count, skreq->id);
 	} else
-		VPRINTK(skdev, "id=0x%x error=%d\n", skreq->id, error);
+		pr_debug("%s:%s:%d id=0x%x error=%d\n",
+			 skdev->name, __func__, __LINE__, skreq->id, error);
 
 	__blk_end_request_all(skreq->req, error);
 }
@@ -1093,14 +1092,16 @@ static int skd_preop_sg_list_blk(struct skd_device *skdev,
 	skreq->sksg_list[n_sg - 1].control = FIT_SGD_CONTROL_LAST;
 
 	if (unlikely(skdev->dbg_level > 1)) {
-		VPRINTK(skdev, "skreq=%x sksg_list=%p sksg_dma=%llx\n",
-			skreq->id, skreq->sksg_list, skreq->sksg_dma_address);
+		pr_debug("%s:%s:%d skreq=%x sksg_list=%p sksg_dma=%llx\n",
+			 skdev->name, __func__, __LINE__,
+			 skreq->id, skreq->sksg_list, skreq->sksg_dma_address);
 		for (i = 0; i < n_sg; i++) {
 			struct fit_sg_descriptor *sgd = &skreq->sksg_list[i];
-			VPRINTK(skdev, "  sg[%d] count=%u ctrl=0x%x "
-				"addr=0x%llx next=0x%llx\n",
-				i, sgd->byte_count, sgd->control,
-				sgd->host_side_addr, sgd->next_desc_ptr);
+			pr_debug("%s:%s:%d   sg[%d] count=%u ctrl=0x%x "
+				 "addr=0x%llx next=0x%llx\n",
+				 skdev->name, __func__, __LINE__,
+				 i, sgd->byte_count, sgd->control,
+				 sgd->host_side_addr, sgd->next_desc_ptr);
 		}
 	}
 
@@ -1132,7 +1133,8 @@ static void skd_end_request_bio(struct skd_device *skdev,
 
 	if ((io_flags & REQ_DISCARD) &&
 		(skreq->discard_page == 1)) {
-		VPRINTK(skdev, "biomode: skd_end_request: freeing DISCARD page.\n");
+		pr_debug("%s:%s:%d biomode: skd_end_request: freeing DISCARD page.\n",
+			 skdev->name, __func__, __LINE__);
 		free_page((unsigned long)page_address(bio->bi_io_vec->bv_page));
 	}
 
@@ -1157,7 +1159,8 @@ static void skd_end_request_bio(struct skd_device *skdev,
 		part_stat_unlock();
 	}
 
-	VPRINTK(skdev, "id=0x%x error=%d\n", skreq->id, error);
+	pr_debug("%s:%s:%d id=0x%x error=%d\n",
+		 skdev->name, __func__, __LINE__, skreq->id, error);
 
 	bio_endio(skreq->bio, error);
 }
@@ -1229,14 +1232,16 @@ static int skd_preop_sg_list_bio(struct skd_device *skdev,
 	}
 
 	if (unlikely(skdev->dbg_level > 1)) {
-		VPRINTK(skdev, "skreq=%x sksg_list=%p sksg_dma=%llx\n",
-			skreq->id, skreq->sksg_list, skreq->sksg_dma_address);
+		pr_debug("%s:%s:%d skreq=%x sksg_list=%p sksg_dma=%llx\n",
+			 skdev->name, __func__, __LINE__,
+			 skreq->id, skreq->sksg_list, skreq->sksg_dma_address);
 		for (i = 0; i < n_sg; i++) {
 			struct fit_sg_descriptor *sgd = &skreq->sksg_list[i];
-			VPRINTK(skdev, "  sg[%d] count=%u ctrl=0x%x "
-				"addr=0x%llx next=0x%llx\n",
-				i, sgd->byte_count, sgd->control,
-				sgd->host_side_addr, sgd->next_desc_ptr);
+			pr_debug("%s:%s:%d   sg[%d] count=%u ctrl=0x%x "
+				 "addr=0x%llx next=0x%llx\n",
+				 skdev->name, __func__, __LINE__,
+				 i, sgd->byte_count, sgd->control,
+				 sgd->host_side_addr, sgd->next_desc_ptr);
 		}
 	}
 
@@ -1391,8 +1396,9 @@ static void skd_timer_tick(ulong arg)
 	/* Something is overdue */
 	overdue_timestamp = skdev->timeout_stamp - SKD_N_TIMEOUT_SLOT;
 
-	DPRINTK(skdev, "found %d timeouts, draining busy=%d\n",
-		skdev->timeout_slot[timo_slot], skdev->in_flight);
+	pr_debug("%s:%s:%d found %d timeouts, draining busy=%d\n",
+		 skdev->name, __func__, __LINE__,
+		 skdev->timeout_slot[timo_slot], skdev->in_flight);
 	pr_err("(%s): Overdue IOs (%d), busy %d\n",
 	       skd_name(skdev), skdev->timeout_slot[timo_slot],
 	       skdev->in_flight);
@@ -1415,8 +1421,9 @@ static void skd_timer_tick_not_online(struct skd_device *skdev)
 	case SKD_DRVR_STATE_LOAD:
 		break;
 	case SKD_DRVR_STATE_BUSY_SANITIZE:
-		VPRINTK(skdev, "drive busy sanitize[%x], driver[%x]\n",
-			skdev->drive_state, skdev->state);
+		pr_debug("%s:%s:%d drive busy sanitize[%x], driver[%x]\n",
+			 skdev->name, __func__, __LINE__,
+			 skdev->drive_state, skdev->state);
 		/* If we've been in sanitize for 3 seconds, we figure we're not
 		 * going to get anymore completions, so recover requests now
 		 */
@@ -1430,14 +1437,16 @@ static void skd_timer_tick_not_online(struct skd_device *skdev)
 	case SKD_DRVR_STATE_BUSY:
 	case SKD_DRVR_STATE_BUSY_IMMINENT:
 	case SKD_DRVR_STATE_BUSY_ERASE:
-		VPRINTK(skdev, "busy[%x], countdown=%d\n",
-			skdev->state, skdev->timer_countdown);
+		pr_debug("%s:%s:%d busy[%x], countdown=%d\n",
+			 skdev->name, __func__, __LINE__,
+			 skdev->state, skdev->timer_countdown);
 		if (skdev->timer_countdown > 0) {
 			skdev->timer_countdown--;
 			return;
 		}
-		DPRINTK(skdev, "busy[%x], timedout=%d, restarting device.",
-			skdev->state, skdev->timer_countdown);
+		pr_debug("%s:%s:%d busy[%x], timedout=%d, restarting device.",
+			 skdev->name, __func__, __LINE__,
+			 skdev->state, skdev->timer_countdown);
 		skd_restart_device(skdev);
 		break;
 
@@ -1470,15 +1479,17 @@ static void skd_timer_tick_not_online(struct skd_device *skdev)
 		break;
 
 	case SKD_DRVR_STATE_DRAINING_TIMEOUT:
-		DPRINTK(skdev,
-			"draining busy [%d] tick[%d] qdb[%d] tmls[%d]\n",
-			skdev->timo_slot,
-			skdev->timer_countdown,
-			skdev->in_flight,
-			skdev->timeout_slot[skdev->timo_slot]);
+		pr_debug("%s:%s:%d "
+			 "draining busy [%d] tick[%d] qdb[%d] tmls[%d]\n",
+			 skdev->name, __func__, __LINE__,
+			 skdev->timo_slot,
+			 skdev->timer_countdown,
+			 skdev->in_flight,
+			 skdev->timeout_slot[skdev->timo_slot]);
 		/* if the slot has cleared we can let the I/O continue */
 		if (skdev->timeout_slot[skdev->timo_slot] == 0) {
-			DPRINTK(skdev, "Slot drained, starting queue.\n");
+			pr_debug("%s:%s:%d Slot drained, starting queue.\n",
+				 skdev->name, __func__, __LINE__);
 			skdev->state = SKD_DRVR_STATE_ONLINE;
 			skd_start_queue(skdev);
 			return;
@@ -1601,8 +1612,9 @@ static int skd_bdev_ioctl(struct block_device *bdev, fmode_t mode,
 	struct skd_device *skdev = disk->private_data;
 	void __user *p = (void *)arg;
 
-	DPRINTK(skdev, "%s: CMD[%s] ioctl  mode 0x%x, cmd 0x%x arg %0lx\n",
-		disk->disk_name, current->comm, mode, cmd_in, arg);
+	pr_debug("%s:%s:%d %s: CMD[%s] ioctl  mode 0x%x, cmd 0x%x arg %0lx\n",
+		 skdev->name, __func__, __LINE__,
+		 disk->disk_name, current->comm, mode, cmd_in, arg);
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
@@ -1622,7 +1634,8 @@ static int skd_bdev_ioctl(struct block_device *bdev, fmode_t mode,
 		break;
 	}
 
-	DPRINTK(skdev, "%s:  completion rc %d\n", disk->disk_name, rc);
+	pr_debug("%s:%s:%d %s:  completion rc %d\n",
+		 skdev->name, __func__, __LINE__, disk->disk_name, rc);
 	return rc;
 }
 
@@ -1643,7 +1656,8 @@ static int skd_ioctl_sg_io(struct skd_device *skdev, fmode_t mode,
 		break;
 
 	default:
-		DPRINTK(skdev, "drive not online\n");
+		pr_debug("%s:%s:%d drive not online\n",
+			 skdev->name, __func__, __LINE__);
 		rc = -ENXIO;
 		goto out;
 	}
@@ -1697,33 +1711,38 @@ static int skd_sg_io_get_and_check_args(struct skd_device *skdev,
 	int i, acc;
 
 	if (!access_ok(VERIFY_WRITE, sksgio->argp, sizeof(sg_io_hdr_t))) {
-		DPRINTK(skdev, "access sg failed %p\n", sksgio->argp);
+		pr_debug("%s:%s:%d access sg failed %p\n",
+			 skdev->name, __func__, __LINE__, sksgio->argp);
 		return -EFAULT;
 	}
 
 	if (__copy_from_user(sgp, sksgio->argp, sizeof(sg_io_hdr_t))) {
-		DPRINTK(skdev, "copy_from_user sg failed %p\n", sksgio->argp);
+		pr_debug("%s:%s:%d copy_from_user sg failed %p\n",
+			 skdev->name, __func__, __LINE__, sksgio->argp);
 		return -EFAULT;
 	}
 
 	if (sgp->interface_id != SG_INTERFACE_ID_ORIG) {
-		DPRINTK(skdev, "interface_id invalid 0x%x\n",
-			sgp->interface_id);
+		pr_debug("%s:%s:%d interface_id invalid 0x%x\n",
+			 skdev->name, __func__, __LINE__, sgp->interface_id);
 		return -EINVAL;
 	}
 
 	if (sgp->cmd_len > sizeof(sksgio->cdb)) {
-		DPRINTK(skdev, "cmd_len invalid %d\n", sgp->cmd_len);
+		pr_debug("%s:%s:%d cmd_len invalid %d\n",
+			 skdev->name, __func__, __LINE__, sgp->cmd_len);
 		return -EINVAL;
 	}
 
 	if (sgp->iovec_count > 256) {
-		DPRINTK(skdev, "iovec_count invalid %d\n", sgp->iovec_count);
+		pr_debug("%s:%s:%d iovec_count invalid %d\n",
+			 skdev->name, __func__, __LINE__, sgp->iovec_count);
 		return -EINVAL;
 	}
 
 	if (sgp->dxfer_len > (PAGE_SIZE * SKD_N_SG_PER_SPECIAL)) {
-		DPRINTK(skdev, "dxfer_len invalid %d\n", sgp->dxfer_len);
+		pr_debug("%s:%s:%d dxfer_len invalid %d\n",
+			 skdev->name, __func__, __LINE__, sgp->dxfer_len);
 		return -EINVAL;
 	}
 
@@ -1742,18 +1761,21 @@ static int skd_sg_io_get_and_check_args(struct skd_device *skdev,
 		break;
 
 	default:
-		DPRINTK(skdev, "dxfer_dir invalid %d\n", sgp->dxfer_direction);
+		pr_debug("%s:%s:%d dxfer_dir invalid %d\n",
+			 skdev->name, __func__, __LINE__, sgp->dxfer_direction);
 		return -EINVAL;
 	}
 
 	if (copy_from_user(sksgio->cdb, sgp->cmdp, sgp->cmd_len)) {
-		DPRINTK(skdev, "copy_from_user cmdp failed %p\n", sgp->cmdp);
+		pr_debug("%s:%s:%d copy_from_user cmdp failed %p\n",
+			 skdev->name, __func__, __LINE__, sgp->cmdp);
 		return -EFAULT;
 	}
 
 	if (sgp->mx_sb_len != 0) {
 		if (!access_ok(VERIFY_WRITE, sgp->sbp, sgp->mx_sb_len)) {
-			DPRINTK(skdev, "access sbp failed %p\n", sgp->sbp);
+			pr_debug("%s:%s:%d access sbp failed %p\n",
+				 skdev->name, __func__, __LINE__, sgp->sbp);
 			return -EFAULT;
 		}
 	}
@@ -1770,16 +1792,17 @@ static int skd_sg_io_get_and_check_args(struct skd_device *skdev,
 
 		iov = kmalloc(nbytes, GFP_KERNEL);
 		if (iov == NULL) {
-			DPRINTK(skdev, "alloc iovec failed %d\n",
-				sgp->iovec_count);
+			pr_debug("%s:%s:%d alloc iovec failed %d\n",
+				 skdev->name, __func__, __LINE__,
+				 sgp->iovec_count);
 			return -ENOMEM;
 		}
 		sksgio->iov = iov;
 		sksgio->iovcnt = sgp->iovec_count;
 
 		if (copy_from_user(iov, sgp->dxferp, nbytes)) {
-			DPRINTK(skdev, "copy_from_user iovec failed %p\n",
-				sgp->dxferp);
+			pr_debug("%s:%s:%d copy_from_user iovec failed %p\n",
+				 skdev->name, __func__, __LINE__, sgp->dxferp);
 			return -EFAULT;
 		}
 
@@ -1807,8 +1830,9 @@ static int skd_sg_io_get_and_check_args(struct skd_device *skdev,
 		struct sg_iovec *iov = sksgio->iov;
 		for (i = 0; i < sksgio->iovcnt; i++, iov++) {
 			if (!access_ok(acc, iov->iov_base, iov->iov_len)) {
-				DPRINTK(skdev, "access data failed %p/%d\n",
-					iov->iov_base, (int)iov->iov_len);
+				pr_debug("%s:%s:%d access data failed %p/%d\n",
+					 skdev->name, __func__, __LINE__,
+					 iov->iov_base, (int)iov->iov_len);
 				return -EFAULT;
 			}
 		}
@@ -1843,14 +1867,16 @@ static int skd_sg_io_obtain_skspcl(struct skd_device *skdev,
 			break;
 		}
 
-		DPRINTK(skdev, "blocking\n");
+		pr_debug("%s:%s:%d blocking\n",
+			 skdev->name, __func__, __LINE__);
 
 		rc = wait_event_interruptible_timeout(
 				skdev->waitq,
 				(skdev->skspcl_free_list != NULL),
 				msecs_to_jiffies(sksgio->sg.timeout));
 
-		DPRINTK(skdev, "unblocking, rc=%d\n", rc);
+		pr_debug("%s:%s:%d unblocking, rc=%d\n",
+			 skdev->name, __func__, __LINE__, rc);
 
 		if (rc <= 0) {
 			if (rc == 0)
@@ -1927,15 +1953,17 @@ static int skd_skreq_prep_buffering(struct skd_device *skdev,
 	if (unlikely(skdev->dbg_level > 1)) {
 		u32 i;
 
-		VPRINTK(skdev, "skreq=%x sksg_list=%p sksg_dma=%llx\n",
-			skreq->id, skreq->sksg_list, skreq->sksg_dma_address);
+		pr_debug("%s:%s:%d skreq=%x sksg_list=%p sksg_dma=%llx\n",
+			 skdev->name, __func__, __LINE__,
+			 skreq->id, skreq->sksg_list, skreq->sksg_dma_address);
 		for (i = 0; i < skreq->n_sg; i++) {
 			struct fit_sg_descriptor *sgd = &skreq->sksg_list[i];
 
-			VPRINTK(skdev, "  sg[%d] count=%u ctrl=0x%x "
-				"addr=0x%llx next=0x%llx\n",
-				i, sgd->byte_count, sgd->control,
-				sgd->host_side_addr, sgd->next_desc_ptr);
+			pr_debug("%s:%s:%d   sg[%d] count=%u ctrl=0x%x "
+				 "addr=0x%llx next=0x%llx\n",
+				 skdev->name, __func__, __LINE__,
+				 i, sgd->byte_count, sgd->control,
+				 sgd->host_side_addr, sgd->next_desc_ptr);
 		}
 	}
 
@@ -2057,7 +2085,8 @@ static int skd_sg_io_await(struct skd_device *skdev, struct skd_sg_io *sksgio)
 	spin_lock_irqsave(&skdev->lock, flags);
 
 	if (sksgio->skspcl->req.state == SKD_REQ_STATE_ABORTED) {
-		DPRINTK(skdev, "skspcl %p aborted\n", sksgio->skspcl);
+		pr_debug("%s:%s:%d skspcl %p aborted\n",
+			 skdev->name, __func__, __LINE__, sksgio->skspcl);
 
 		/* Build check cond, sense and let command finish. */
 		/* For a timeout, we must fabricate completion and sense
@@ -2082,11 +2111,13 @@ static int skd_sg_io_await(struct skd_device *skdev, struct skd_sg_io *sksgio)
 		sksgio->skspcl->orphaned = 1;
 		sksgio->skspcl = NULL;
 		if (rc == 0) {
-			DPRINTK(skdev, "timed out %p (%u ms)\n", sksgio,
-				sksgio->sg.timeout);
+			pr_debug("%s:%s:%d timed out %p (%u ms)\n",
+				 skdev->name, __func__, __LINE__,
+				 sksgio, sksgio->sg.timeout);
 			rc = -ETIMEDOUT;
 		} else {
-			DPRINTK(skdev, "cntlc %p\n", sksgio);
+			pr_debug("%s:%s:%d cntlc %p\n",
+				 skdev->name, __func__, __LINE__, sksgio);
 			rc = -EINTR;
 		}
 	}
@@ -2116,8 +2147,9 @@ static int skd_sg_io_put_status(struct skd_device *skdev,
 	if (sgp->masked_status || sgp->host_status || sgp->driver_status)
 		sgp->info |= SG_INFO_CHECK;
 
-	DPRINTK(skdev, "status %x masked %x resid 0x%x\n", sgp->status,
-		sgp->masked_status, sgp->resid);
+	pr_debug("%s:%s:%d status %x masked %x resid 0x%x\n",
+		 skdev->name, __func__, __LINE__,
+		 sgp->status, sgp->masked_status, sgp->resid);
 
 	if (sgp->masked_status == SAM_STAT_CHECK_CONDITION) {
 		if (sgp->mx_sb_len > 0) {
@@ -2129,15 +2161,17 @@ static int skd_sg_io_put_status(struct skd_device *skdev,
 			sgp->sb_len_wr = nbytes;
 
 			if (__copy_to_user(sgp->sbp, ei, nbytes)) {
-				DPRINTK(skdev, "copy_to_user sense failed %p\n",
-					sgp->sbp);
+				pr_debug("%s:%s:%d copy_to_user sense failed %p\n",
+					 skdev->name, __func__, __LINE__,
+					 sgp->sbp);
 				return -EFAULT;
 			}
 		}
 	}
 
 	if (__copy_to_user(sksgio->argp, sgp, sizeof(sg_io_hdr_t))) {
-		DPRINTK(skdev, "copy_to_user sg failed %p\n", sksgio->argp);
+		pr_debug("%s:%s:%d copy_to_user sg failed %p\n",
+			 skdev->name, __func__, __LINE__, sksgio->argp);
 		return -EFAULT;
 	}
 
@@ -2325,7 +2359,8 @@ static void skd_complete_internal(struct skd_device *skdev,
 
 	SKD_ASSERT(skspcl == &skdev->internal_skspcl);
 
-	DPRINTK(skdev, "complete internal %x\n", scsi->cdb[0]);
+	pr_debug("%s:%s:%d complete internal %x\n",
+		 skdev->name, __func__, __LINE__, scsi->cdb[0]);
 
 	skspcl->req.completion = *skcomp;
 	skspcl->req.state = SKD_REQ_STATE_IDLE;
@@ -2345,11 +2380,13 @@ static void skd_complete_internal(struct skd_device *skdev,
 			skd_send_internal_skspcl(skdev, skspcl, WRITE_BUFFER);
 		else {
 			if (skdev->state == SKD_DRVR_STATE_STOPPING) {
-				VPRINTK(skdev, "TUR failed, don't send anymore"
-					"state 0x%x\n", skdev->state);
+				pr_debug("%s:%s:%d TUR failed, don't send anymore state 0x%x\n",
+					 skdev->name, __func__, __LINE__,
+					 skdev->state);
 				return;
 			}
-			DPRINTK(skdev, "**** TUR failed, retry skerr\n");
+			pr_debug("%s:%s:%d **** TUR failed, retry skerr\n",
+				 skdev->name, __func__, __LINE__);
 			skd_send_internal_skspcl(skdev, skspcl, 0x00);
 		}
 		break;
@@ -2359,12 +2396,13 @@ static void skd_complete_internal(struct skd_device *skdev,
 			skd_send_internal_skspcl(skdev, skspcl, READ_BUFFER);
 		else {
 			if (skdev->state == SKD_DRVR_STATE_STOPPING) {
-				VPRINTK(skdev, "write buffer failed, don't send"
-					" anymore state 0x%x\n", skdev->state);
+				pr_debug("%s:%s:%d write buffer failed, don't send anymore state 0x%x\n",
+					 skdev->name, __func__, __LINE__,
+					 skdev->state);
 				return;
 			}
-			DPRINTK(skdev,
-				"**** write buffer failed, retry skerr\n");
+			pr_debug("%s:%s:%d **** write buffer failed, retry skerr\n",
+				 skdev->name, __func__, __LINE__);
 			skd_send_internal_skspcl(skdev, skspcl, 0x00);
 		}
 		break;
@@ -2392,13 +2430,15 @@ static void skd_complete_internal(struct skd_device *skdev,
 
 		} else {
 			if (skdev->state == SKD_DRVR_STATE_STOPPING) {
-				VPRINTK(skdev,
-					"read buffer failed, don't send anymore"
-					"state 0x%x\n", skdev->state);
+				pr_debug("%s:%s:%d "
+					 "read buffer failed, don't send anymore state 0x%x\n",
+					 skdev->name, __func__, __LINE__,
+					 skdev->state);
 				return;
 			}
-			DPRINTK(skdev,
-				"**** read buffer failed, retry skerr\n");
+			pr_debug("%s:%s:%d "
+				 "**** read buffer failed, retry skerr\n",
+				 skdev->name, __func__, __LINE__);
 			skd_send_internal_skspcl(skdev, skspcl, 0x00);
 		}
 		break;
@@ -2413,9 +2453,10 @@ static void skd_complete_internal(struct skd_device *skdev,
 				(buf[4] << 24) | (buf[5] << 16) |
 				(buf[6] << 8) | buf[7];
 
-			DPRINTK(skdev, "last lba %d, bs %d\n",
-				skdev->read_cap_last_lba,
-				skdev->read_cap_blocksize);
+			pr_debug("%s:%s:%d last lba %d, bs %d\n",
+				 skdev->name, __func__, __LINE__,
+				 skdev->read_cap_last_lba,
+				 skdev->read_cap_blocksize);
 
 			set_capacity(skdev->disk, skdev->read_cap_last_lba + 1);
 
@@ -2426,11 +2467,13 @@ static void skd_complete_internal(struct skd_device *skdev,
 			   (skerr->key == MEDIUM_ERROR)) {
 			skdev->read_cap_last_lba = ~0;
 			set_capacity(skdev->disk, skdev->read_cap_last_lba + 1);
-			DPRINTK(skdev,
-				"**** MEDIUM ERROR caused READCAP to fail, ignore failure and continue to inquiry\n");
+			pr_debug("%s:%s:%d "
+				 "**** MEDIUM ERROR caused READCAP to fail, ignore failure and continue to inquiry\n",
+				 skdev->name, __func__, __LINE__);
 			skd_send_internal_skspcl(skdev, skspcl, INQUIRY);
 		} else {
-			DPRINTK(skdev, "**** READCAP failed, retry TUR\n");
+			pr_debug("%s:%s:%d **** READCAP failed, retry TUR\n",
+				 skdev->name, __func__, __LINE__);
 			skd_send_internal_skspcl(skdev, skspcl,
 						 TEST_UNIT_READY);
 		}
@@ -2447,7 +2490,8 @@ static void skd_complete_internal(struct skd_device *skdev,
 		}
 
 		if (skd_unquiesce_dev(skdev) < 0)
-			DPRINTK(skdev, "**** failed, to ONLINE device\n");
+			pr_debug("%s:%s:%d **** failed, to ONLINE device\n",
+				 skdev->name, __func__, __LINE__);
 		 /* connection is complete */
 		skdev->connect_retries = 0;
 		break;
@@ -2477,10 +2521,12 @@ static void skd_send_fitmsg(struct skd_device *skdev,
 	u64 qcmd;
 	struct fit_msg_hdr *fmh;
 
-	VPRINTK(skdev, "dma address 0x%llx, busy=%d\n",
-		skmsg->mb_dma_address, skdev->in_flight);
-	VPRINTK(skdev, "msg_buf 0x%p, offset %x\n",
-		skmsg->msg_buf, skmsg->offset);
+	pr_debug("%s:%s:%d dma address 0x%llx, busy=%d\n",
+		 skdev->name, __func__, __LINE__,
+		 skmsg->mb_dma_address, skdev->in_flight);
+	pr_debug("%s:%s:%d msg_buf 0x%p, offset %x\n",
+		 skdev->name, __func__, __LINE__,
+		 skmsg->msg_buf, skmsg->offset);
 
 	qcmd = skmsg->mb_dma_address;
 	qcmd |= FIT_QCMD_QID_NORMAL;
@@ -2492,11 +2538,12 @@ static void skd_send_fitmsg(struct skd_device *skdev,
 		u8 *bp = (u8 *)skmsg->msg_buf;
 		int i;
 		for (i = 0; i < skmsg->length; i += 8) {
-			VPRINTK(skdev, "  msg[%2d] %02x %02x %02x %02x "
-				"%02x %02x %02x %02x\n",
-				i, bp[i + 0], bp[i + 1], bp[i + 2],
-				bp[i + 3], bp[i + 4], bp[i + 5],
-				bp[i + 6], bp[i + 7]);
+			pr_debug("%s:%s:%d msg[%2d] %02x %02x %02x %02x "
+				 "%02x %02x %02x %02x\n",
+				 skdev->name, __func__, __LINE__,
+				 i, bp[i + 0], bp[i + 1], bp[i + 2],
+				 bp[i + 3], bp[i + 4], bp[i + 5],
+				 bp[i + 6], bp[i + 7]);
 			if (i == 0)
 				i = 64 - 8;
 		}
@@ -2530,26 +2577,28 @@ static void skd_send_special_fitmsg(struct skd_device *skdev,
 		int i;
 
 		for (i = 0; i < SKD_N_SPECIAL_FITMSG_BYTES; i += 8) {
-			VPRINTK(skdev,
-				"  spcl[%2d] %02x %02x %02x %02x  "
-				"%02x %02x %02x %02x\n", i,
-				bp[i + 0], bp[i + 1], bp[i + 2], bp[i + 3],
-				bp[i + 4], bp[i + 5], bp[i + 6], bp[i + 7]);
+			pr_debug("%s:%s:%d  spcl[%2d] %02x %02x %02x %02x  "
+				 "%02x %02x %02x %02x\n",
+				 skdev->name, __func__, __LINE__, i,
+				 bp[i + 0], bp[i + 1], bp[i + 2], bp[i + 3],
+				 bp[i + 4], bp[i + 5], bp[i + 6], bp[i + 7]);
 			if (i == 0)
 				i = 64 - 8;
 		}
 
-		VPRINTK(skdev, "skspcl=%p id=%04x sksg_list=%p sksg_dma=%llx\n",
-			skspcl, skspcl->req.id, skspcl->req.sksg_list,
-			skspcl->req.sksg_dma_address);
+		pr_debug("%s:%s:%d skspcl=%p id=%04x sksg_list=%p sksg_dma=%llx\n",
+			 skdev->name, __func__, __LINE__,
+			 skspcl, skspcl->req.id, skspcl->req.sksg_list,
+			 skspcl->req.sksg_dma_address);
 		for (i = 0; i < skspcl->req.n_sg; i++) {
 			struct fit_sg_descriptor *sgd =
 				&skspcl->req.sksg_list[i];
 
-			VPRINTK(skdev, "  sg[%d] count=%u ctrl=0x%x "
-				"addr=0x%llx next=0x%llx\n",
-				i, sgd->byte_count, sgd->control,
-				sgd->host_side_addr, sgd->next_desc_ptr);
+			pr_debug("%s:%s:%d   sg[%d] count=%u ctrl=0x%x "
+				 "addr=0x%llx next=0x%llx\n",
+				 skdev->name, __func__, __LINE__,
+				 i, sgd->byte_count, sgd->control,
+				 sgd->host_side_addr, sgd->next_desc_ptr);
 		}
 	}
 
@@ -2632,9 +2681,9 @@ static enum skd_check_status_action skd_check_status(struct skd_device *skdev,
 	       skd_name(skdev), skerr->key, skerr->code, skerr->qual,
 	       skerr->fruc);
 
-	VPRINTK(skdev, "stat: t=%02x stat=%02x k=%02x c=%02x q=%02x "
-		"fruc=%02x\n", skerr->type, cmp_status, skerr->key,
-		skerr->code, skerr->qual, skerr->fruc);
+	pr_debug("%s:%s:%d stat: t=%02x stat=%02x k=%02x c=%02x q=%02x fruc=%02x\n",
+		 skdev->name, __func__, __LINE__, skerr->type, cmp_status,
+		 skerr->key, skerr->code, skerr->qual, skerr->fruc);
 
 	/* Does the info match an entry in the good category? */
 	n = sizeof(skd_chkstat_table) / sizeof(skd_chkstat_table[0]);
@@ -2674,11 +2723,13 @@ static enum skd_check_status_action skd_check_status(struct skd_device *skdev,
 	 * zero status means good
 	 */
 	if (cmp_status) {
-		DPRINTK(skdev, "status check: error\n");
+		pr_debug("%s:%s:%d status check: error\n",
+			 skdev->name, __func__, __LINE__);
 		return SKD_CHECK_STATUS_REPORT_ERROR;
 	}
 
-	DPRINTK(skdev, "status check good default\n");
+	pr_debug("%s:%s:%d status check good default\n",
+		 skdev->name, __func__, __LINE__);
 	return SKD_CHECK_STATUS_REPORT_GOOD;
 }
 
@@ -2816,7 +2867,8 @@ static void skd_do_inq_page_00(struct skd_device *skdev,
 	/* Caller requested "supported pages".  The driver needs to insert
 	 * its page.
 	 */
-	VPRINTK(skdev, "skd_do_driver_inquiry: modify supported pages.\n");
+	pr_debug("%s:%s:%d skd_do_driver_inquiry: modify supported pages.\n",
+		 skdev->name, __func__, __LINE__);
 
 	/* If the device rejected the request because the CDB was
 	 * improperly formed, then just leave.
@@ -2913,7 +2965,8 @@ static void skd_do_inq_page_da(struct skd_device *skdev,
 	struct driver_inquiry_data inq;
 	u16 val;
 
-	VPRINTK(skdev, "skd_do_driver_inquiry: return driver page\n");
+	pr_debug("%s:%s:%d skd_do_driver_inquiry: return driver page\n",
+		 skdev->name, __func__, __LINE__);
 
 	memset(&inq, 0, sizeof(inq));
 
@@ -3045,14 +3098,16 @@ static int skd_isr_completion_posted(struct skd_device *skdev,
 
 		skerr = &skdev->skerr_table[skdev->skcomp_ix];
 
-		VPRINTK(skdev,
-			"cycle=%d ix=%d got cycle=%d cmdctxt=0x%x stat=%d "
-			"busy=%d rbytes=0x%x proto=%d\n", skdev->skcomp_cycle,
-			skdev->skcomp_ix, cmp_cycle, cmp_cntxt, cmp_status,
-			skdev->in_flight, cmp_bytes, skdev->proto_ver);
+		pr_debug("%s:%s:%d "
+			 "cycle=%d ix=%d got cycle=%d cmdctxt=0x%x stat=%d "
+			 "busy=%d rbytes=0x%x proto=%d\n",
+			 skdev->name, __func__, __LINE__, skdev->skcomp_cycle,
+			 skdev->skcomp_ix, cmp_cycle, cmp_cntxt, cmp_status,
+			 skdev->in_flight, cmp_bytes, skdev->proto_ver);
 
 		if (cmp_cycle != skdev->skcomp_cycle) {
-			VPRINTK(skdev, "end of completions\n");
+			pr_debug("%s:%s:%d end of completions\n",
+				 skdev->name, __func__, __LINE__);
 			break;
 		}
 		/*
@@ -3088,8 +3143,9 @@ static int skd_isr_completion_posted(struct skd_device *skdev,
 		 * Make sure the request ID for the slot matches.
 		 */
 		if (skreq->id != req_id) {
-			DPRINTK(skdev, "mismatch comp_id=0x%x req_id=0x%x\n",
-				req_id, skreq->id);
+			pr_debug("%s:%s:%d mismatch comp_id=0x%x req_id=0x%x\n",
+				 skdev->name, __func__, __LINE__,
+				 req_id, skreq->id);
 			{
 				u16 new_id = cmp_cntxt;
 				pr_err("(%s): Completion mismatch "
@@ -3104,8 +3160,9 @@ static int skd_isr_completion_posted(struct skd_device *skdev,
 		SKD_ASSERT(skreq->state == SKD_REQ_STATE_BUSY);
 
 		if (skreq->state == SKD_REQ_STATE_ABORTED) {
-			DPRINTK(skdev, "reclaim req %p id=%04x\n",
-				skreq, skreq->id);
+			pr_debug("%s:%s:%d reclaim req %p id=%04x\n",
+				 skdev->name, __func__, __LINE__,
+				 skreq, skreq->id);
 			/* a previously timed out command can
 			 * now be cleaned up */
 			skd_release_skreq(skdev, skreq);
@@ -3125,9 +3182,10 @@ static int skd_isr_completion_posted(struct skd_device *skdev,
 
 		if (((!skd_bio) && !skreq->req) ||
 		    ((skd_bio) && !skreq->bio)) {
-			DPRINTK(skdev, "NULL backptr skdreq %p, "
-				"req=0x%x req_id=0x%x\n",
-				skreq, skreq->id, req_id);
+			pr_debug("%s:%s:%d NULL backptr skdreq %p, "
+				 "req=0x%x req_id=0x%x\n",
+				 skdev->name, __func__, __LINE__,
+				 skreq, skreq->id, req_id);
 		} else {
 			/*
 			 * Capture the outcome and post it back to the
@@ -3196,8 +3254,9 @@ static void skd_complete_other(struct skd_device *skdev,
 	req_table = req_id & SKD_ID_TABLE_MASK;
 	req_slot = req_id & SKD_ID_SLOT_MASK;
 
-	DPRINTK(skdev, "table=0x%x id=0x%x slot=%d\n", req_table, req_id,
-		req_slot);
+	pr_debug("%s:%s:%d table=0x%x id=0x%x slot=%d\n",
+		 skdev->name, __func__, __LINE__,
+		 req_table, req_id, req_slot);
 
 	/*
 	 * Based on the request id, determine how to dispatch this completion.
@@ -3265,12 +3324,14 @@ static void skd_complete_special(struct skd_device *skdev,
 				 volatile struct fit_comp_error_info *skerr,
 				 struct skd_special_context *skspcl)
 {
-	DPRINTK(skdev, " completing special request %p\n", skspcl);
+	pr_debug("%s:%s:%d  completing special request %p\n",
+		 skdev->name, __func__, __LINE__, skspcl);
 	if (skspcl->orphaned) {
 		/* Discard orphaned request */
 		/* ?: Can this release directly or does it need
 		 * to use a worker? */
-		DPRINTK(skdev, "release orphaned %p\n", skspcl);
+		pr_debug("%s:%s:%d release orphaned %p\n",
+			 skdev->name, __func__, __LINE__, skspcl);
 		skd_release_special(skdev, skspcl);
 		return;
 	}
@@ -3308,7 +3369,8 @@ static void skd_release_special(struct skd_device *skdev,
 	skdev->skspcl_free_list = (struct skd_special_context *)skspcl;
 
 	if (was_depleted) {
-		DPRINTK(skdev, "skspcl was depleted\n");
+		pr_debug("%s:%s:%d skspcl was depleted\n",
+			 skdev->name, __func__, __LINE__);
 		/* Free list was depleted. Their might be waiters. */
 		wake_up_interruptible(&skdev->waitq);
 	}
@@ -3373,7 +3435,8 @@ static skd_isr(int irq, void *ptr)
 		ack = FIT_INT_DEF_MASK;
 		ack &= intstat;
 
-		VPRINTK(skdev, "intstat=0x%x ack=0x%x\n", intstat, ack);
+		pr_debug("%s:%s:%d intstat=0x%x ack=0x%x\n",
+			 skdev->name, __func__, __LINE__, intstat, ack);
 
 		/* As long as there is an int pending on device, keep
 		 * running loop.  When none, get out, but if we've never
@@ -3534,7 +3597,8 @@ static void skd_isr_fwstate(struct skd_device *skdev)
 		}
 		break;
 	case FIT_SR_DRIVE_FW_BOOTING:
-		VPRINTK(skdev, "ISR FIT_SR_DRIVE_FW_BOOTING %s\n", skdev->name);
+		pr_debug("%s:%s:%d ISR FIT_SR_DRIVE_FW_BOOTING %s\n",
+			 skdev->name, __func__, __LINE__, skdev->name);
 		skdev->state = SKD_DRVR_STATE_WAIT_BOOT;
 		skdev->timer_countdown = SKD_WAIT_BOOT_TIMO;
 		break;
@@ -3643,10 +3707,14 @@ static void skd_recover_requests(struct skd_device *skdev, int requeue)
 		 */
 		if (skspcl->req.state == SKD_REQ_STATE_BUSY) {
 			if (skspcl->orphaned) {
-				DPRINTK(skdev, "orphaned %p\n", skspcl);
+				pr_debug("%s:%s:%d orphaned %p\n",
+					 skdev->name, __func__, __LINE__,
+					 skspcl);
 				skd_release_special(skdev, skspcl);
 			} else {
-				DPRINTK(skdev, "not orphaned %p\n", skspcl);
+				pr_debug("%s:%s:%d not orphaned %p\n",
+					 skdev->name, __func__, __LINE__,
+					 skspcl);
 				skspcl->req.state = SKD_REQ_STATE_ABORTED;
 			}
 		}
@@ -3667,7 +3735,8 @@ static void skd_isr_msg_from_dev(struct skd_device *skdev)
 
 	mfd = SKD_READL(skdev, FIT_MSG_FROM_DEVICE);
 
-	DPRINTK(skdev, "mfd=0x%x last_mtd=0x%x\n", mfd, skdev->last_mtd);
+	pr_debug("%s:%s:%d mfd=0x%x last_mtd=0x%x\n",
+		 skdev->name, __func__, __LINE__, mfd, skdev->last_mtd);
 
 	/* ignore any mtd that is an ack for something we didn't send */
 	if (FIT_MXD_TYPE(mfd) != FIT_MXD_TYPE(skdev->last_mtd))
@@ -3762,7 +3831,8 @@ static void skd_disable_interrupts(struct skd_device *skdev)
 	sense = SKD_READL(skdev, FIT_CONTROL);
 	sense &= ~FIT_CR_ENABLE_INTERRUPTS;
 	SKD_WRITEL(skdev, sense, FIT_CONTROL);
-	DPRINTK(skdev, "sense 0x%x\n", sense);
+	pr_debug("%s:%s:%d sense 0x%x\n",
+		 skdev->name, __func__, __LINE__, sense);
 
 	/* Note that the 1s is written. A 1-bit means
 	 * disable, a 0 means enable.
@@ -3781,11 +3851,13 @@ static void skd_enable_interrupts(struct skd_device *skdev)
 	/* Note that the compliment of mask is written. A 1-bit means
 	 * disable, a 0 means enable. */
 	SKD_WRITEL(skdev, ~val, FIT_INT_MASK_HOST);
-	DPRINTK(skdev, "interrupt mask=0x%x\n", ~val);
+	pr_debug("%s:%s:%d interrupt mask=0x%x\n",
+		 skdev->name, __func__, __LINE__, ~val);
 
 	val = SKD_READL(skdev, FIT_CONTROL);
 	val |= FIT_CR_ENABLE_INTERRUPTS;
-	DPRINTK(skdev, "control=0x%x\n", val);
+	pr_debug("%s:%s:%d control=0x%x\n",
+		 skdev->name, __func__, __LINE__, val);
 	SKD_WRITEL(skdev, val, FIT_CONTROL);
 }
 
@@ -3801,7 +3873,8 @@ static void skd_soft_reset(struct skd_device *skdev)
 
 	val = SKD_READL(skdev, FIT_CONTROL);
 	val |= (FIT_CR_SOFT_RESET);
-	DPRINTK(skdev, "control=0x%x\n", val);
+	pr_debug("%s:%s:%d control=0x%x\n",
+		 skdev->name, __func__, __LINE__, val);
 	SKD_WRITEL(skdev, val, FIT_CONTROL);
 }
 
@@ -3818,7 +3891,8 @@ static void skd_start_device(struct skd_device *skdev)
 
 	sense = SKD_READL(skdev, FIT_STATUS);
 
-	DPRINTK(skdev, "initial status=0x%x\n", sense);
+	pr_debug("%s:%s:%d initial status=0x%x\n",
+		 skdev->name, __func__, __LINE__, sense);
 
 	state = sense & FIT_SR_DRIVE_STATE_MASK;
 	skdev->drive_state = state;
@@ -3835,7 +3909,8 @@ static void skd_start_device(struct skd_device *skdev)
 		break;
 
 	case FIT_SR_DRIVE_FW_BOOTING:
-		VPRINTK(skdev, "FIT_SR_DRIVE_FW_BOOTING %s\n", skdev->name);
+		pr_debug("%s:%s:%d FIT_SR_DRIVE_FW_BOOTING %s\n",
+			 skdev->name, __func__, __LINE__, skdev->name);
 		skdev->state = SKD_DRVR_STATE_WAIT_BOOT;
 		skdev->timer_countdown = SKD_WAIT_BOOT_TIMO;
 		break;
@@ -3876,7 +3951,8 @@ static void skd_start_device(struct skd_device *skdev)
 		 */
 		skd_drive_fault(skdev);
 		/*start the queue so we can respond with error to requests */
-		VPRINTK(skdev, "starting %s queue\n", skdev->name);
+		pr_debug("%s:%s:%d starting %s queue\n",
+			 skdev->name, __func__, __LINE__, skdev->name);
 		skd_start_queue(skdev);
 		skdev->gendisk_on = -1;
 		wake_up_interruptible(&skdev->waitq);
@@ -3887,8 +3963,8 @@ static void skd_start_device(struct skd_device *skdev)
 		 * to the BAR1 addresses. */
 		skd_drive_disappeared(skdev);
 		/*start the queue so we can respond with error to requests */
-		VPRINTK(skdev, "starting %s queue to error-out reqs\n",
-			skdev->name);
+		pr_debug("%s:%s:%d starting %s queue to error-out reqs\n",
+			 skdev->name, __func__, __LINE__, skdev->name);
 		skd_start_queue(skdev);
 		skdev->gendisk_on = -1;
 		wake_up_interruptible(&skdev->waitq);
@@ -3901,19 +3977,24 @@ static void skd_start_device(struct skd_device *skdev)
 	}
 
 	state = SKD_READL(skdev, FIT_CONTROL);
-	DPRINTK(skdev, "FIT Control Status=0x%x\n", state);
+	pr_debug("%s:%s:%d FIT Control Status=0x%x\n",
+		 skdev->name, __func__, __LINE__, state);
 
 	state = SKD_READL(skdev, FIT_INT_STATUS_HOST);
-	DPRINTK(skdev, "Intr Status=0x%x\n", state);
+	pr_debug("%s:%s:%d Intr Status=0x%x\n",
+		 skdev->name, __func__, __LINE__, state);
 
 	state = SKD_READL(skdev, FIT_INT_MASK_HOST);
-	DPRINTK(skdev, "Intr Mask=0x%x\n", state);
+	pr_debug("%s:%s:%d Intr Mask=0x%x\n",
+		 skdev->name, __func__, __LINE__, state);
 
 	state = SKD_READL(skdev, FIT_MSG_FROM_DEVICE);
-	DPRINTK(skdev, "Msg from Dev=0x%x\n", state);
+	pr_debug("%s:%s:%d Msg from Dev=0x%x\n",
+		 skdev->name, __func__, __LINE__, state);
 
 	state = SKD_READL(skdev, FIT_HW_VERSION);
-	DPRINTK(skdev, "HW version=0x%x\n", state);
+	pr_debug("%s:%s:%d HW version=0x%x\n",
+		 skdev->name, __func__, __LINE__, state);
 
 	spin_unlock_irqrestore(&skdev->lock, flags);
 }
@@ -4006,7 +4087,8 @@ static void skd_restart_device(struct skd_device *skdev)
 
 	state = SKD_READL(skdev, FIT_STATUS);
 
-	DPRINTK(skdev, "drive status=0x%x\n", state);
+	pr_debug("%s:%s:%d drive status=0x%x\n",
+		 skdev->name, __func__, __LINE__, state);
 
 	state &= FIT_SR_DRIVE_STATE_MASK;
 	skdev->drive_state = state;
@@ -4026,7 +4108,8 @@ static int skd_quiesce_dev(struct skd_device *skdev)
 	switch (skdev->state) {
 	case SKD_DRVR_STATE_BUSY:
 	case SKD_DRVR_STATE_BUSY_IMMINENT:
-		VPRINTK(skdev, "stopping %s queue\n", skdev->name);
+		pr_debug("%s:%s:%d stopping %s queue\n",
+			 skdev->name, __func__, __LINE__, skdev->name);
 		skd_stop_queue(skdev);
 		break;
 	case SKD_DRVR_STATE_ONLINE:
@@ -4039,7 +4122,8 @@ static int skd_quiesce_dev(struct skd_device *skdev)
 	case SKD_DRVR_STATE_RESUMING:
 	default:
 		rc = -EINVAL;
-		VPRINTK(skdev, "state [%d] not implemented\n", skdev->state);
+		pr_debug("%s:%s:%d state [%d] not implemented\n",
+			 skdev->name, __func__, __LINE__, skdev->state);
 	}
 	return rc;
 }
@@ -4051,7 +4135,8 @@ static int skd_unquiesce_dev(struct skd_device *skdev)
 
 	skd_log_skdev(skdev, "unquiesce");
 	if (skdev->state == SKD_DRVR_STATE_ONLINE) {
-		DPRINTK(skdev, "**** device already ONLINE\n");
+		pr_debug("%s:%s:%d **** device already ONLINE\n",
+			 skdev->name, __func__, __LINE__);
 		return 0;
 	}
 	if (skdev->drive_state != FIT_SR_DRIVE_ONLINE) {
@@ -4064,7 +4149,8 @@ static int skd_unquiesce_dev(struct skd_device *skdev)
 		 * to become available.
 		 */
 		skdev->state = SKD_DRVR_STATE_BUSY;
-		DPRINTK(skdev, "drive BUSY state\n");
+		pr_debug("%s:%s:%d drive BUSY state\n",
+			 skdev->name, __func__, __LINE__);
 		return 0;
 	}
 
@@ -4088,8 +4174,10 @@ static int skd_unquiesce_dev(struct skd_device *skdev)
 		       skd_skdev_state_to_str(prev_driver_state),
 		       prev_driver_state, skd_skdev_state_to_str(skdev->state),
 		       skdev->state);
-		DPRINTK(skdev, "**** device ONLINE...starting block queue\n");
-		VPRINTK(skdev, "starting %s queue\n", skdev->name);
+		pr_debug("%s:%s:%d **** device ONLINE...starting block queue\n",
+			 skdev->name, __func__, __LINE__);
+		pr_debug("%s:%s:%d starting %s queue\n",
+			 skdev->name, __func__, __LINE__, skdev->name);
 		pr_info("(%s): STEC s1120 ONLINE\n", skd_name(skdev));
 		skd_start_queue(skdev);
 		skdev->gendisk_on = 1;
@@ -4098,8 +4186,9 @@ static int skd_unquiesce_dev(struct skd_device *skdev)
 
 	case SKD_DRVR_STATE_DISAPPEARED:
 	default:
-		DPRINTK(skdev, "**** driver state %d, not implemented \n",
-			skdev->state);
+		pr_debug("%s:%s:%d **** driver state %d, not implemented \n",
+			 skdev->name, __func__, __LINE__,
+			 skdev->state);
 		return -EBUSY;
 	}
 	return 0;
@@ -4117,7 +4206,9 @@ static irqreturn_t skd_reserved_isr(int irq, void *skd_host_data)
 	unsigned long flags;
 
 	spin_lock_irqsave(&skdev->lock, flags);
-	VPRINTK(skdev, "MSIX = 0x%x\n", SKD_READL(skdev, FIT_INT_STATUS_HOST));
+	pr_debug("%s:%s:%d MSIX = 0x%x\n",
+		 skdev->name, __func__, __LINE__,
+		 SKD_READL(skdev, FIT_INT_STATUS_HOST));
 	pr_err("(%s): MSIX reserved irq %d = 0x%x\n", skd_name(skdev),
 	       irq, SKD_READL(skdev, FIT_INT_STATUS_HOST));
 	SKD_WRITEL(skdev, FIT_INT_RESERVED_MASK, FIT_INT_STATUS_HOST);
@@ -4131,7 +4222,9 @@ static irqreturn_t skd_statec_isr(int irq, void *skd_host_data)
 	unsigned long flags;
 
 	spin_lock_irqsave(&skdev->lock, flags);
-	VPRINTK(skdev, "MSIX = 0x%x\n", SKD_READL(skdev, FIT_INT_STATUS_HOST));
+	pr_debug("%s:%s:%d MSIX = 0x%x\n",
+		 skdev->name, __func__, __LINE__,
+		 SKD_READL(skdev, FIT_INT_STATUS_HOST));
 	SKD_WRITEL(skdev, FIT_ISH_FW_STATE_CHANGE, FIT_INT_STATUS_HOST);
 	skd_isr_fwstate(skdev);
 	spin_unlock_irqrestore(&skdev->lock, flags);
@@ -4146,7 +4239,9 @@ static irqreturn_t skd_comp_q(int irq, void *skd_host_data)
 	int deferred;
 
 	spin_lock_irqsave(&skdev->lock, flags);
-	VPRINTK(skdev, "MSIX = 0x%x\n", SKD_READL(skdev, FIT_INT_STATUS_HOST));
+	pr_debug("%s:%s:%d MSIX = 0x%x\n",
+		 skdev->name, __func__, __LINE__,
+		 SKD_READL(skdev, FIT_INT_STATUS_HOST));
 	SKD_WRITEL(skdev, FIT_ISH_COMPLETION_POSTED, FIT_INT_STATUS_HOST);
 	deferred = skd_isr_completion_posted(skdev, skd_isr_comp_limit,
 						&flush_enqueued);
@@ -4170,7 +4265,9 @@ static irqreturn_t skd_msg_isr(int irq, void *skd_host_data)
 	unsigned long flags;
 
 	spin_lock_irqsave(&skdev->lock, flags);
-	VPRINTK(skdev, "MSIX = 0x%x\n", SKD_READL(skdev, FIT_INT_STATUS_HOST));
+	pr_debug("%s:%s:%d MSIX = 0x%x\n",
+		 skdev->name, __func__, __LINE__,
+		 SKD_READL(skdev, FIT_INT_STATUS_HOST));
 	SKD_WRITEL(skdev, FIT_ISH_MSG_FROM_DEV, FIT_INT_STATUS_HOST);
 	skd_isr_msg_from_dev(skdev);
 	spin_unlock_irqrestore(&skdev->lock, flags);
@@ -4183,7 +4280,9 @@ static irqreturn_t skd_qfull_isr(int irq, void *skd_host_data)
 	unsigned long flags;
 
 	spin_lock_irqsave(&skdev->lock, flags);
-	VPRINTK(skdev, "MSIX = 0x%x\n", SKD_READL(skdev, FIT_INT_STATUS_HOST));
+	pr_debug("%s:%s:%d MSIX = 0x%x\n",
+		 skdev->name, __func__, __LINE__,
+		 SKD_READL(skdev, FIT_INT_STATUS_HOST));
 	SKD_WRITEL(skdev, FIT_INT_QUEUE_FULL, FIT_INT_STATUS_HOST);
 	spin_unlock_irqrestore(&skdev->lock, flags);
 	return IRQ_HANDLED;
@@ -4275,8 +4374,9 @@ static int skd_acquire_msix(struct skd_device *skdev)
 			       skd_name(skdev), rc);
 			goto msix_out;
 		}
-		DPRINTK(skdev, "%s: <%s> allocated %d MSI-X vectors\n",
-			pci_name(pdev), skdev->name, rc);
+		pr_debug("%s:%s:%d %s: <%s> allocated %d MSI-X vectors\n",
+			 skdev->name, __func__, __LINE__,
+			 pci_name(pdev), skdev->name, rc);
 
 		skdev->msix_count = rc;
 		rc = pci_enable_msix(pdev, entries, skdev->msix_count);
@@ -4303,9 +4403,10 @@ static int skd_acquire_msix(struct skd_device *skdev)
 		qentry->entry = entries[i].entry;
 		qentry->rsp = NULL;
 		qentry->have_irq = 0;
-		DPRINTK(skdev, "%s: <%s> msix (%d) vec %d, entry %x\n",
-			pci_name(pdev), skdev->name,
-			i, qentry->vector, qentry->entry);
+		pr_debug("%s:%s:%d %s: <%s> msix (%d) vec %d, entry %x\n",
+			 skdev->name, __func__, __LINE__,
+			 pci_name(pdev), skdev->name,
+			 i, qentry->vector, qentry->entry);
 		qentry++;
 	}
 
@@ -4328,8 +4429,9 @@ static int skd_acquire_msix(struct skd_device *skdev)
 			qentry->rsp = skdev;
 		}
 	}
-	DPRINTK(skdev, "%s: <%s> msix %d irq(s) enabled\n",
-		pci_name(pdev), skdev->name, skdev->msix_count);
+	pr_debug("%s:%s:%d %s: <%s> msix %d irq(s) enabled\n",
+		 skdev->name, __func__, __LINE__,
+		 pci_name(pdev), skdev->name, skdev->msix_count);
 	return 0;
 
 msix_out:
@@ -4489,43 +4591,42 @@ static struct skd_device *skd_construct(struct pci_dev *pdev)
 	INIT_WORK(&skdev->completion_worker, skd_completion_worker);
 	INIT_LIST_HEAD(&skdev->flush_list);
 
-	VPRINTK(skdev, "skcomp\n");
+	pr_debug("%s:%s:%d skcomp\n", skdev->name, __func__, __LINE__);
 	rc = skd_cons_skcomp(skdev);
 	if (rc < 0)
 		goto err_out;
 
-	VPRINTK(skdev, "skmsg\n");
+	pr_debug("%s:%s:%d skmsg\n", skdev->name, __func__, __LINE__);
 	rc = skd_cons_skmsg(skdev);
 	if (rc < 0)
 		goto err_out;
 
-	VPRINTK(skdev, "skreq\n");
+	pr_debug("%s:%s:%d skreq\n", skdev->name, __func__, __LINE__);
 	rc = skd_cons_skreq(skdev);
 	if (rc < 0)
 		goto err_out;
 
-	VPRINTK(skdev, "skspcl\n");
+	pr_debug("%s:%s:%d skspcl\n", skdev->name, __func__, __LINE__);
 	rc = skd_cons_skspcl(skdev);
 	if (rc < 0)
 		goto err_out;
 
-	VPRINTK(skdev, "sksb\n");
+	pr_debug("%s:%s:%d sksb\n", skdev->name, __func__, __LINE__);
 	rc = skd_cons_sksb(skdev);
 	if (rc < 0)
 		goto err_out;
 
-	VPRINTK(skdev, "disk\n");
+	pr_debug("%s:%s:%d disk\n", skdev->name, __func__, __LINE__);
 	rc = skd_cons_disk(skdev);
 	if (rc < 0)
 		goto err_out;
 
-
-
-	DPRINTK(skdev, "VICTORY\n");
+	pr_debug("%s:%s:%d VICTORY\n", skdev->name, __func__, __LINE__);
 	return skdev;
 
 err_out:
-	DPRINTK(skdev, "construct failed\n");
+	pr_debug("%s:%s:%d construct failed\n",
+		 skdev->name, __func__, __LINE__);
 	skd_destruct(skdev);
 	return NULL;
 }
@@ -4539,8 +4640,9 @@ static int skd_cons_skcomp(struct skd_device *skdev)
 	nbytes = sizeof(*skcomp) * SKD_N_COMPLETION_ENTRY;
 	nbytes += sizeof(struct fit_comp_error_info) * SKD_N_COMPLETION_ENTRY;
 
-	VPRINTK(skdev, "comp pci_alloc, total bytes %d entries %d\n", nbytes,
-		SKD_N_COMPLETION_ENTRY);
+	pr_debug("%s:%s:%d comp pci_alloc, total bytes %d entries %d\n",
+		 skdev->name, __func__, __LINE__,
+		 nbytes, SKD_N_COMPLETION_ENTRY);
 
 	skcomp = pci_alloc_consistent(skdev->pdev, nbytes,
 				      &skdev->cq_dma_address);
@@ -4566,10 +4668,11 @@ static int skd_cons_skmsg(struct skd_device *skdev)
 	int rc = 0;
 	u32 i;
 
-	VPRINTK(skdev, "skmsg_table kzalloc, struct %lu, count %u total %lu\n",
-		sizeof(struct skd_fitmsg_context),
-		skdev->num_fitmsg_context,
-		sizeof(struct skd_fitmsg_context) * skdev->num_fitmsg_context);
+	pr_debug("%s:%s:%d skmsg_table kzalloc, struct %lu, count %u total %lu\n",
+		 skdev->name, __func__, __LINE__,
+		 sizeof(struct skd_fitmsg_context),
+		 skdev->num_fitmsg_context,
+		 sizeof(struct skd_fitmsg_context) * skdev->num_fitmsg_context);
 
 	skdev->skmsg_table = kzalloc(sizeof(struct skd_fitmsg_context)
 				     *skdev->num_fitmsg_context, GFP_KERNEL);
@@ -4620,10 +4723,11 @@ static int skd_cons_skreq(struct skd_device *skdev)
 	int rc = 0;
 	u32 i;
 
-	VPRINTK(skdev, "skreq_table kzalloc, struct %lu, count %u total %lu\n",
-		sizeof(struct skd_request_context),
-		skdev->num_req_context,
-		sizeof(struct skd_request_context) * skdev->num_req_context);
+	pr_debug("%s:%s:%d skreq_table kzalloc, struct %lu, count %u total %lu\n",
+		 skdev->name, __func__, __LINE__,
+		 sizeof(struct skd_request_context),
+		 skdev->num_req_context,
+		 sizeof(struct skd_request_context) * skdev->num_req_context);
 
 	skdev->skreq_table = kzalloc(sizeof(struct skd_request_context)
 				     * skdev->num_req_context, GFP_KERNEL);
@@ -4632,9 +4736,10 @@ static int skd_cons_skreq(struct skd_device *skdev)
 		goto err_out;
 	}
 
-	VPRINTK(skdev, "alloc sg_table sg_per_req %u scatlist %lu total %lu\n",
-		skdev->sgs_per_request, sizeof(struct scatterlist),
-		skdev->sgs_per_request * sizeof(struct scatterlist));
+	pr_debug("%s:%s:%d alloc sg_table sg_per_req %u scatlist %lu total %lu\n",
+		 skdev->name, __func__, __LINE__,
+		 skdev->sgs_per_request, sizeof(struct scatterlist),
+		 skdev->sgs_per_request * sizeof(struct scatterlist));
 
 	for (i = 0; i < skdev->num_req_context; i++) {
 		struct skd_request_context *skreq;
@@ -4677,10 +4782,11 @@ static int skd_cons_skspcl(struct skd_device *skdev)
 	int rc = 0;
 	u32 i, nbytes;
 
-	VPRINTK(skdev, "skspcl_table kzalloc, struct %lu, count %u total %lu\n",
-		sizeof(struct skd_special_context),
-		skdev->n_special,
-		sizeof(struct skd_special_context) * skdev->n_special);
+	pr_debug("%s:%s:%d skspcl_table kzalloc, struct %lu, count %u total %lu\n",
+		 skdev->name, __func__, __LINE__,
+		 sizeof(struct skd_special_context),
+		 skdev->n_special,
+		 sizeof(struct skd_special_context) * skdev->n_special);
 
 	skdev->skspcl_table = kzalloc(sizeof(struct skd_special_context)
 				      * skdev->n_special, GFP_KERNEL);
@@ -4872,7 +4978,8 @@ static int skd_cons_disk(struct skd_device *skdev)
 	queue_flag_set_unlocked(QUEUE_FLAG_NONROT, q);
 
 	spin_lock_irqsave(&skdev->lock, flags);
-	VPRINTK(skdev, "stopping %s queue\n", skdev->name);
+	pr_debug("%s:%s:%d stopping %s queue\n",
+		 skdev->name, __func__, __LINE__, skdev->name);
 	skd_stop_queue(skdev);
 	spin_unlock_irqrestore(&skdev->lock, flags);
 
@@ -4902,25 +5009,25 @@ static void skd_destruct(struct skd_device *skdev)
 		return;
 
 
-	VPRINTK(skdev, "disk\n");
+	pr_debug("%s:%s:%d disk\n", skdev->name, __func__, __LINE__);
 	skd_free_disk(skdev);
 
-	VPRINTK(skdev, "sksb\n");
+	pr_debug("%s:%s:%d sksb\n", skdev->name, __func__, __LINE__);
 	skd_free_sksb(skdev);
 
-	VPRINTK(skdev, "skspcl\n");
+	pr_debug("%s:%s:%d skspcl\n", skdev->name, __func__, __LINE__);
 	skd_free_skspcl(skdev);
 
-	VPRINTK(skdev, "skreq\n");
+	pr_debug("%s:%s:%d skreq\n", skdev->name, __func__, __LINE__);
 	skd_free_skreq(skdev);
 
-	VPRINTK(skdev, "skmsg\n");
+	pr_debug("%s:%s:%d skmsg\n", skdev->name, __func__, __LINE__);
 	skd_free_skmsg(skdev);
 
-	VPRINTK(skdev, "skcomp\n");
+	pr_debug("%s:%s:%d skcomp\n", skdev->name, __func__, __LINE__);
 	skd_free_skcomp(skdev);
 
-	VPRINTK(skdev, "skdev\n");
+	pr_debug("%s:%s:%d skdev\n", skdev->name, __func__, __LINE__);
 	kfree(skdev);
 }
 
@@ -5106,8 +5213,9 @@ static int skd_bdev_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 
 	skdev = bdev->bd_disk->private_data;
 
-	DPRINTK(skdev, "%s: CMD[%s] getgeo device\n",
-		bdev->bd_disk->disk_name, current->comm);
+	pr_debug("%s:%s:%d %s: CMD[%s] getgeo device\n",
+		 skdev->name, __func__, __LINE__,
+		 bdev->bd_disk->disk_name, current->comm);
 
 	if (skdev->read_cap_is_valid) {
 		capacity = get_capacity(skdev->disk);
@@ -5122,7 +5230,7 @@ static int skd_bdev_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 
 static int skd_bdev_attach(struct skd_device *skdev)
 {
-	DPRINTK(skdev, "add_disk\n");
+	pr_debug("%s:%s:%d add_disk\n", skdev->name, __func__, __LINE__);
 	add_disk(skdev->disk);
 	return 0;
 }
@@ -5245,9 +5353,10 @@ static int skd_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 			rc = -ENODEV;
 			goto err_out_iounmap;
 		}
-		DPRINTK(skdev, "mem_map=%p, phyd=%016llx, size=%d\n",
-			skdev->mem_map[i],
-			(uint64_t)skdev->mem_phys[i], skdev->mem_size[i]);
+		pr_debug("%s:%s:%d mem_map=%p, phyd=%016llx, size=%d\n",
+			 skdev->name, __func__, __LINE__,
+			 skdev->mem_map[i],
+			 (uint64_t)skdev->mem_phys[i], skdev->mem_size[i]);
 	}
 
 	rc = skd_acquire_irq(skdev);
@@ -5441,9 +5550,10 @@ static int skd_pci_resume(struct pci_dev *pdev)
 			rc = -ENODEV;
 			goto err_out_iounmap;
 		}
-		DPRINTK(skdev, "mem_map=%p, phyd=%016llx, size=%d\n",
-			skdev->mem_map[i],
-			(uint64_t)skdev->mem_phys[i], skdev->mem_size[i]);
+		pr_debug("%s:%s:%d mem_map=%p, phyd=%016llx, size=%d\n",
+			 skdev->name, __func__, __LINE__,
+			 skdev->mem_map[i],
+			 (uint64_t)skdev->mem_phys[i], skdev->mem_size[i]);
 	}
 	rc = skd_acquire_irq(skdev);
 	if (rc) {
@@ -5643,35 +5753,44 @@ const char *skd_skreq_state_to_str(enum skd_req_state state)
 
 static void skd_log_skdev(struct skd_device *skdev, const char *event)
 {
-	DPRINTK(skdev, "(%s) skdev=%p event='%s'\n", skdev->name, skdev, event);
-	DPRINTK(skdev, "  drive_state=%s(%d) driver_state=%s(%d)\n",
-		skd_drive_state_to_str(skdev->drive_state), skdev->drive_state,
-		skd_skdev_state_to_str(skdev->state), skdev->state);
-	DPRINTK(skdev, "  busy=%d limit=%d dev=%d lowat=%d\n",
-		skdev->in_flight, skdev->cur_max_queue_depth,
-		skdev->dev_max_queue_depth, skdev->queue_low_water_mark);
-	DPRINTK(skdev, "  timestamp=0x%x cycle=%d cycle_ix=%d\n",
-		skdev->timeout_stamp, skdev->skcomp_cycle, skdev->skcomp_ix);
+	pr_debug("%s:%s:%d (%s) skdev=%p event='%s'\n",
+		 skdev->name, __func__, __LINE__, skdev->name, skdev, event);
+	pr_debug("%s:%s:%d   drive_state=%s(%d) driver_state=%s(%d)\n",
+		 skdev->name, __func__, __LINE__,
+		 skd_drive_state_to_str(skdev->drive_state), skdev->drive_state,
+		 skd_skdev_state_to_str(skdev->state), skdev->state);
+	pr_debug("%s:%s:%d   busy=%d limit=%d dev=%d lowat=%d\n",
+		 skdev->name, __func__, __LINE__,
+		 skdev->in_flight, skdev->cur_max_queue_depth,
+		 skdev->dev_max_queue_depth, skdev->queue_low_water_mark);
+	pr_debug("%s:%s:%d   timestamp=0x%x cycle=%d cycle_ix=%d\n",
+		 skdev->name, __func__, __LINE__,
+		 skdev->timeout_stamp, skdev->skcomp_cycle, skdev->skcomp_ix);
 }
 
 static void skd_log_skmsg(struct skd_device *skdev,
 			  struct skd_fitmsg_context *skmsg, const char *event)
 {
-	DPRINTK(skdev, "(%s) skmsg=%p event='%s'\n", skdev->name, skmsg, event);
-	DPRINTK(skdev, "  state=%s(%d) id=0x%04x length=%d\n",
-		skd_skmsg_state_to_str(skmsg->state), skmsg->state,
-		skmsg->id, skmsg->length);
+	pr_debug("%s:%s:%d (%s) skmsg=%p event='%s'\n",
+		 skdev->name, __func__, __LINE__, skdev->name, skmsg, event);
+	pr_debug("%s:%s:%d   state=%s(%d) id=0x%04x length=%d\n",
+		 skdev->name, __func__, __LINE__,
+		 skd_skmsg_state_to_str(skmsg->state), skmsg->state,
+		 skmsg->id, skmsg->length);
 }
 
 static void skd_log_skreq(struct skd_device *skdev,
 			  struct skd_request_context *skreq, const char *event)
 {
-	DPRINTK(skdev, "(%s) skreq=%p event='%s'\n", skdev->name, skreq, event);
-	DPRINTK(skdev, "  state=%s(%d) id=0x%04x fitmsg=0x%04x\n",
-		skd_skreq_state_to_str(skreq->state), skreq->state,
-		skreq->id, skreq->fitmsg_id);
-	DPRINTK(skdev, "  timo=0x%x sg_dir=%d n_sg=%d\n",
-		skreq->timeout_stamp, skreq->sg_data_dir, skreq->n_sg);
+	pr_debug("%s:%s:%d (%s) skreq=%p event='%s'\n",
+		 skdev->name, __func__, __LINE__, skdev->name, skreq, event);
+	pr_debug("%s:%s:%d   state=%s(%d) id=0x%04x fitmsg=0x%04x\n",
+		 skdev->name, __func__, __LINE__,
+		 skd_skreq_state_to_str(skreq->state), skreq->state,
+		 skreq->id, skreq->fitmsg_id);
+	pr_debug("%s:%s:%d   timo=0x%x sg_dir=%d n_sg=%d\n",
+		 skdev->name, __func__, __LINE__,
+		 skreq->timeout_stamp, skreq->sg_data_dir, skreq->n_sg);
 
 	if (!skd_bio) {
 		if (skreq->req != NULL) {
@@ -5679,24 +5798,28 @@ static void skd_log_skreq(struct skd_device *skdev,
 			u32 lba = (u32)blk_rq_pos(req);
 			u32 count = blk_rq_sectors(req);
 
-			DPRINTK(skdev,
-				"  req=%p lba=%u(0x%x) count=%u(0x%x) dir=%d\n",
-				req, lba, lba, count, count,
-				(int)rq_data_dir(req));
+			pr_debug("%s:%s:%d "
+				 "req=%p lba=%u(0x%x) count=%u(0x%x) dir=%d\n",
+				 skdev->name, __func__, __LINE__,
+				 req, lba, lba, count, count,
+				 (int)rq_data_dir(req));
 		} else
-			DPRINTK(skdev, "  req=NULL\n");
+			pr_debug("%s:%s:%d req=NULL\n",
+				 skdev->name, __func__, __LINE__);
 	} else {
 		if (skreq->bio != NULL) {
 			struct bio *bio = skreq->bio;
 			u32 lba = (u32)bio->bi_sector;
 			u32 count = bio_sectors(bio);
 
-			DPRINTK(skdev,
-				"  bio=%p lba=%u(0x%x) count=%u(0x%x) dir=%d\n",
-				bio, lba, lba, count, count,
-				(int)bio_data_dir(bio));
+			pr_debug("%s:%s:%d "
+				 "bio=%p lba=%u(0x%x) count=%u(0x%x) dir=%d\n",
+				 skdev->name, __func__, __LINE__,
+				 bio, lba, lba, count, count,
+				 (int)bio_data_dir(bio));
 		} else
-			DPRINTK(skdev, "  req=NULL\n");
+			pr_debug("%s:%s:%d req=NULL\n",
+				 skdev->name, __func__, __LINE__);
 	}
 }
 
-- 
cgit 


From b88fac630bf71bd0af44502d6688e99a5426d438 Mon Sep 17 00:00:00 2001
From: "Stephen M. Cameron" <scameron@beardog.cce.hp.com>
Date: Tue, 29 Oct 2013 13:46:06 -0600
Subject: cciss: return 0 from driver probe function on success, not 1

A return value of 1 is interpreted as an error

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/cciss.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index edfa2515bc86..0c004ac05811 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -5183,7 +5183,7 @@ reinit_after_soft_reset:
 	rebuild_lun_table(h, 1, 0);
 	cciss_engage_scsi(h);
 	h->busy_initializing = 0;
-	return 1;
+	return 0;
 
 clean4:
 	cciss_free_cmd_pool(h);
-- 
cgit 


From ef0899410ff630b2e75306da49996dbbfa318165 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Thu, 31 Oct 2013 13:24:28 +0100
Subject: s390/dasd: hold request queue sysfs lock when calling elevator_init()

"elevator: Fix a race in elevator switching and md device initialization"
changed the semantics of elevator_init() in a way that now enforces to hold
the corresponding request queue's sysfs_lock when calling elevator_init()
to fix a race.
The patch did not convert the s390 dasd device driver which is the only
device driver which also calls elevator_init(). So add the missing locking.

Cc: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/s390/block/dasd.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 451bf99582ff..846d5c6609d8 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -2978,12 +2978,12 @@ static int dasd_alloc_queue(struct dasd_block *block)
 
 	elevator_exit(block->request_queue->elevator);
 	block->request_queue->elevator = NULL;
+	mutex_lock(&block->request_queue->sysfs_lock);
 	rc = elevator_init(block->request_queue, "deadline");
-	if (rc) {
+	if (rc)
 		blk_cleanup_queue(block->request_queue);
-		return rc;
-	}
-	return 0;
+	mutex_unlock(&block->request_queue->sysfs_lock);
+	return rc;
 }
 
 /*
-- 
cgit 


From 1762b57fcbe365c2e3f79769a7fe77942ea3165f Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 30 Oct 2013 13:23:53 +0800
Subject: skd: fix error return code in skd_pci_probe()

Fix to return -ENOMEM in the skd construct error handling
case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/skd_main.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index ab17bff6b4f9..1a8717fce41d 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -5321,8 +5321,10 @@ static int skd_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	}
 
 	skdev = skd_construct(pdev);
-	if (skdev == NULL)
+	if (skdev == NULL) {
+		rc = -ENOMEM;
 		goto err_out_regions;
+	}
 
 	skd_pci_info(skdev, pci_str);
 	pr_info("(%s): %s 64bit\n", skd_name(skdev), pci_str);
-- 
cgit 


From fcd37eb3c1347193935d07a82b84dfc7d418dd05 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Fri, 1 Nov 2013 10:14:56 -0600
Subject: skd: rip out bio path

The skd driver has a selectable rq or bio based queueing model.
For 3.14, we want to turn this into a single blk-mq interface
instead. With the immutable biovecs being merged in 3.13, the
bio model would need patches to even work. So rip it out, with
a conversion pending for blk-mq in the next release.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/skd_main.c | 529 ++++++-----------------------------------------
 1 file changed, 62 insertions(+), 467 deletions(-)

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index 1a8717fce41d..49e1e8b48422 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -354,13 +354,7 @@ struct skd_device {
 
 	u32 timo_slot;
 
-
 	struct work_struct completion_worker;
-
-	struct bio_list bio_queue;
-	int queue_stopped;
-
-	struct list_head flush_list;
 };
 
 #define SKD_FLUSH_JOB   "skd-flush-jobs"
@@ -470,11 +464,6 @@ MODULE_PARM_DESC(skd_dbg_level, "s1120 debug level (0,1,2)");
 module_param(skd_isr_comp_limit, int, 0444);
 MODULE_PARM_DESC(skd_isr_comp_limit, "s1120 isr comp limit (0=none) default=4");
 
-static int skd_bio;
-module_param(skd_bio, int, 0444);
-MODULE_PARM_DESC(skd_bio,
-		 "Register as a bio device instead of block (0, 1) default=0");
-
 /* Major device number dynamically assigned. */
 static u32 skd_major;
 
@@ -512,11 +501,6 @@ static void skd_log_skmsg(struct skd_device *skdev,
 static void skd_log_skreq(struct skd_device *skdev,
 			  struct skd_request_context *skreq, const char *event);
 
-/* FLUSH FUA flag handling. */
-static int skd_flush_cmd_enqueue(struct skd_device *, void *);
-static void *skd_flush_cmd_dequeue(struct skd_device *);
-
-
 /*
  *****************************************************************************
  * READ/WRITE REQUESTS
@@ -524,40 +508,25 @@ static void *skd_flush_cmd_dequeue(struct skd_device *);
  */
 static void skd_stop_queue(struct skd_device *skdev)
 {
-	if (!skd_bio)
-		blk_stop_queue(skdev->queue);
-	else
-		skdev->queue_stopped = 1;
+	blk_stop_queue(skdev->queue);
 }
 
 static void skd_unstop_queue(struct skd_device *skdev)
 {
-	if (!skd_bio)
-		queue_flag_clear(QUEUE_FLAG_STOPPED, skdev->queue);
-	else
-		skdev->queue_stopped = 0;
+	queue_flag_clear(QUEUE_FLAG_STOPPED, skdev->queue);
 }
 
 static void skd_start_queue(struct skd_device *skdev)
 {
-	if (!skd_bio) {
-		blk_start_queue(skdev->queue);
-	} else {
-		pr_err("(%s): Starting queue\n", skd_name(skdev));
-		skdev->queue_stopped = 0;
-		skd_request_fn(skdev->queue);
-	}
+	blk_start_queue(skdev->queue);
 }
 
 static int skd_queue_stopped(struct skd_device *skdev)
 {
-	if (!skd_bio)
-		return blk_queue_stopped(skdev->queue);
-	else
-		return skdev->queue_stopped;
+	return blk_queue_stopped(skdev->queue);
 }
 
-static void skd_fail_all_pending_blk(struct skd_device *skdev)
+static void skd_fail_all_pending(struct skd_device *skdev)
 {
 	struct request_queue *q = skdev->queue;
 	struct request *req;
@@ -571,42 +540,6 @@ static void skd_fail_all_pending_blk(struct skd_device *skdev)
 	}
 }
 
-static void skd_fail_all_pending_bio(struct skd_device *skdev)
-{
-	struct bio *bio;
-	int error = -EIO;
-
-	for (;; ) {
-		bio = bio_list_pop(&skdev->bio_queue);
-
-		if (bio == NULL)
-			break;
-
-		bio_endio(bio, error);
-	}
-}
-
-static void skd_fail_all_pending(struct skd_device *skdev)
-{
-	if (!skd_bio)
-		skd_fail_all_pending_blk(skdev);
-	else
-		skd_fail_all_pending_bio(skdev);
-}
-
-static void skd_make_request(struct request_queue *q, struct bio *bio)
-{
-	struct skd_device *skdev = q->queuedata;
-	unsigned long flags;
-
-	spin_lock_irqsave(&skdev->lock, flags);
-
-	bio_list_add(&skdev->bio_queue, bio);
-	skd_request_fn(skdev->queue);
-
-	spin_unlock_irqrestore(&skdev->lock, flags);
-}
-
 static void
 skd_prep_rw_cdb(struct skd_scsi_request *scsi_req,
 		int data_dir, unsigned lba,
@@ -667,18 +600,9 @@ skd_prep_discard_cdb(struct skd_scsi_request *scsi_req,
 	put_unaligned_be64(lba, &buf[8]);
 	put_unaligned_be32(count, &buf[16]);
 
-	if (!skd_bio) {
-		req = skreq->req;
-		blk_add_request_payload(req, page, len);
-		req->buffer = buf;
-	} else {
-		skreq->bio->bi_io_vec->bv_page = page;
-		skreq->bio->bi_io_vec->bv_offset = 0;
-		skreq->bio->bi_io_vec->bv_len = len;
-
-		skreq->bio->bi_vcnt = 1;
-		skreq->bio->bi_phys_segments = 1;
-	}
+	req = skreq->req;
+	blk_add_request_payload(req, page, len);
+	req->buffer = buf;
 }
 
 static void skd_request_fn_not_online(struct request_queue *q);
@@ -690,7 +614,6 @@ static void skd_request_fn(struct request_queue *q)
 	struct fit_msg_hdr *fmh = NULL;
 	struct skd_request_context *skreq;
 	struct request *req = NULL;
-	struct bio *bio = NULL;
 	struct skd_scsi_request *scsi_req;
 	struct page *page;
 	unsigned long io_flags;
@@ -732,60 +655,27 @@ static void skd_request_fn(struct request_queue *q)
 
 		flush = fua = 0;
 
-		if (!skd_bio) {
-			req = blk_peek_request(q);
-
-			/* Are there any native requests to start? */
-			if (req == NULL)
-				break;
-
-			lba = (u32)blk_rq_pos(req);
-			count = blk_rq_sectors(req);
-			data_dir = rq_data_dir(req);
-			io_flags = req->cmd_flags;
-
-			if (io_flags & REQ_FLUSH)
-				flush++;
-
-			if (io_flags & REQ_FUA)
-				fua++;
+		req = blk_peek_request(q);
 
-			pr_debug("%s:%s:%d new req=%p lba=%u(0x%x) "
-				 "count=%u(0x%x) dir=%d\n",
-				 skdev->name, __func__, __LINE__,
-				 req, lba, lba, count, count, data_dir);
-		} else {
-			if (!list_empty(&skdev->flush_list)) {
-				/* Process data part of FLUSH request. */
-				bio = (struct bio *)skd_flush_cmd_dequeue(skdev);
-				flush++;
-				pr_debug("%s:%s:%d processing FLUSH request with data.\n",
-					 skdev->name, __func__, __LINE__);
-			} else {
-				/* peek at our bio queue */
-				bio = bio_list_peek(&skdev->bio_queue);
-			}
+		/* Are there any native requests to start? */
+		if (req == NULL)
+			break;
 
-			/* Are there any native requests to start? */
-			if (bio == NULL)
-				break;
+		lba = (u32)blk_rq_pos(req);
+		count = blk_rq_sectors(req);
+		data_dir = rq_data_dir(req);
+		io_flags = req->cmd_flags;
 
-			lba = (u32)bio->bi_sector;
-			count = bio_sectors(bio);
-			data_dir = bio_data_dir(bio);
-			io_flags = bio->bi_rw;
+		if (io_flags & REQ_FLUSH)
+			flush++;
 
-			pr_debug("%s:%s:%d new bio=%p lba=%u(0x%x) "
-				 "count=%u(0x%x) dir=%d\n",
-				 skdev->name, __func__, __LINE__,
-				 bio, lba, lba, count, count, data_dir);
+		if (io_flags & REQ_FUA)
+			fua++;
 
-			if (io_flags & REQ_FLUSH)
-				flush++;
-
-			if (io_flags & REQ_FUA)
-				fua++;
-		}
+		pr_debug("%s:%s:%d new req=%p lba=%u(0x%x) "
+			 "count=%u(0x%x) dir=%d\n",
+			 skdev->name, __func__, __LINE__,
+			 req, lba, lba, count, count, data_dir);
 
 		/* At this point we know there is a request
 		 * (from our bio q or req q depending on the way
@@ -831,23 +721,9 @@ static void skd_request_fn(struct request_queue *q)
 		 * the native request. Note that skd_request_context is
 		 * available but is still at the head of the free list.
 		 */
-		if (!skd_bio) {
-			blk_start_request(req);
-			skreq->req = req;
-			skreq->fitmsg_id = 0;
-		} else {
-			if (unlikely(flush == SKD_FLUSH_DATA_SECOND)) {
-				skreq->bio = bio;
-			} else {
-				skreq->bio = bio_list_pop(&skdev->bio_queue);
-				SKD_ASSERT(skreq->bio == bio);
-				skreq->start_time = jiffies;
-				part_inc_in_flight(&skdev->disk->part0,
-						   bio_data_dir(bio));
-			}
-
-			skreq->fitmsg_id = 0;
-		}
+		blk_start_request(req);
+		skreq->req = req;
+		skreq->fitmsg_id = 0;
 
 		/* Either a FIT msg is in progress or we have to start one. */
 		if (skmsg == NULL) {
@@ -923,8 +799,7 @@ static void skd_request_fn(struct request_queue *q)
 		if (fua)
 			scsi_req->cdb[1] |= SKD_FUA_NV;
 
-		if ((!skd_bio && !req->bio) ||
-			(skd_bio && flush == SKD_FLUSH_ZERO_SIZE_FIRST))
+		if (!req->bio)
 			goto skip_sg;
 
 		error = skd_preop_sg_list(skdev, skreq);
@@ -1011,8 +886,7 @@ skip_sg:
 	 * If req is non-NULL it means there is something to do but
 	 * we are out of a resource.
 	 */
-	if (((!skd_bio) && req) ||
-	    ((skd_bio) && bio_list_peek(&skdev->bio_queue)))
+	if (req)
 		skd_stop_queue(skdev);
 }
 
@@ -1045,7 +919,7 @@ static void skd_end_request_blk(struct skd_device *skdev,
 	__blk_end_request_all(skreq->req, error);
 }
 
-static int skd_preop_sg_list_blk(struct skd_device *skdev,
+static int skd_preop_sg_list(struct skd_device *skdev,
 				 struct skd_request_context *skreq)
 {
 	struct request *req = skreq->req;
@@ -1108,7 +982,7 @@ static int skd_preop_sg_list_blk(struct skd_device *skdev,
 	return 0;
 }
 
-static void skd_postop_sg_list_blk(struct skd_device *skdev,
+static void skd_postop_sg_list(struct skd_device *skdev,
 				   struct skd_request_context *skreq)
 {
 	int writing = skreq->sg_data_dir == SKD_DATA_DIR_HOST_TO_CARD;
@@ -1124,184 +998,10 @@ static void skd_postop_sg_list_blk(struct skd_device *skdev,
 	pci_unmap_sg(skdev->pdev, &skreq->sg[0], skreq->n_sg, pci_dir);
 }
 
-static void skd_end_request_bio(struct skd_device *skdev,
-				struct skd_request_context *skreq, int error)
-{
-	struct bio *bio = skreq->bio;
-	int rw = bio_data_dir(bio);
-	unsigned long io_flags = bio->bi_rw;
-
-	if ((io_flags & REQ_DISCARD) &&
-		(skreq->discard_page == 1)) {
-		pr_debug("%s:%s:%d biomode: skd_end_request: freeing DISCARD page.\n",
-			 skdev->name, __func__, __LINE__);
-		free_page((unsigned long)page_address(bio->bi_io_vec->bv_page));
-	}
-
-	if (unlikely(error)) {
-		u32 lba = (u32)skreq->bio->bi_sector;
-		u32 count = bio_sectors(skreq->bio);
-		char *cmd = (rw == WRITE) ? "write" : "read";
-		pr_err("(%s): Error cmd=%s sect=%u count=%u id=0x%x\n",
-		       skd_name(skdev), cmd, lba, count, skreq->id);
-	}
-	{
-		int cpu = part_stat_lock();
-
-		if (likely(!error)) {
-			part_stat_inc(cpu, &skdev->disk->part0, ios[rw]);
-			part_stat_add(cpu, &skdev->disk->part0, sectors[rw],
-				      bio_sectors(bio));
-		}
-		part_stat_add(cpu, &skdev->disk->part0, ticks[rw],
-			      jiffies - skreq->start_time);
-		part_dec_in_flight(&skdev->disk->part0, rw);
-		part_stat_unlock();
-	}
-
-	pr_debug("%s:%s:%d id=0x%x error=%d\n",
-		 skdev->name, __func__, __LINE__, skreq->id, error);
-
-	bio_endio(skreq->bio, error);
-}
-
-static int skd_preop_sg_list_bio(struct skd_device *skdev,
-				 struct skd_request_context *skreq)
-{
-	struct bio *bio = skreq->bio;
-	int writing = skreq->sg_data_dir == SKD_DATA_DIR_HOST_TO_CARD;
-	int pci_dir = writing ? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE;
-	int n_sg;
-	int i;
-	struct bio_vec *vec;
-	struct fit_sg_descriptor *sgd;
-	u64 dma_addr;
-	u32 count;
-	int errs = 0;
-	unsigned int io_flags = 0;
-	io_flags |= bio->bi_rw;
-
-	skreq->sg_byte_count = 0;
-	n_sg = skreq->n_sg = skreq->bio->bi_vcnt;
-
-	if (n_sg <= 0)
-		return -EINVAL;
-
-	if (n_sg > skdev->sgs_per_request) {
-		pr_err("(%s): sg overflow n=%d\n",
-		       skd_name(skdev), n_sg);
-		skreq->n_sg = 0;
-		return -EIO;
-	}
-
-	for (i = 0; i < skreq->n_sg; i++) {
-		vec = bio_iovec_idx(bio, i);
-		dma_addr = pci_map_page(skdev->pdev,
-					vec->bv_page,
-					vec->bv_offset, vec->bv_len, pci_dir);
-		count = vec->bv_len;
-
-		if (count == 0 || count > 64u * 1024u || (count & 3) != 0
-		    || (dma_addr & 3) != 0) {
-			pr_err(
-			       "(%s): Bad sg ix=%d count=%d addr=0x%llx\n",
-			       skd_name(skdev), i, count, dma_addr);
-			errs++;
-		}
-
-		sgd = &skreq->sksg_list[i];
-
-		sgd->control = FIT_SGD_CONTROL_NOT_LAST;
-		sgd->byte_count = vec->bv_len;
-		skreq->sg_byte_count += vec->bv_len;
-		sgd->host_side_addr = dma_addr;
-		sgd->dev_side_addr = 0; /* not used */
-	}
-
-	skreq->sksg_list[n_sg - 1].next_desc_ptr = 0LL;
-	skreq->sksg_list[n_sg - 1].control = FIT_SGD_CONTROL_LAST;
-
-
-	 if (!(io_flags & REQ_DISCARD)) {
-		count = bio_sectors(bio) << 9u;
-		if (count != skreq->sg_byte_count) {
-			pr_err("(%s): mismatch count sg=%d req=%d\n",
-			       skd_name(skdev), skreq->sg_byte_count, count);
-			errs++;
-		}
-	}
-
-	if (unlikely(skdev->dbg_level > 1)) {
-		pr_debug("%s:%s:%d skreq=%x sksg_list=%p sksg_dma=%llx\n",
-			 skdev->name, __func__, __LINE__,
-			 skreq->id, skreq->sksg_list, skreq->sksg_dma_address);
-		for (i = 0; i < n_sg; i++) {
-			struct fit_sg_descriptor *sgd = &skreq->sksg_list[i];
-			pr_debug("%s:%s:%d   sg[%d] count=%u ctrl=0x%x "
-				 "addr=0x%llx next=0x%llx\n",
-				 skdev->name, __func__, __LINE__,
-				 i, sgd->byte_count, sgd->control,
-				 sgd->host_side_addr, sgd->next_desc_ptr);
-		}
-	}
-
-	if (errs != 0) {
-		skd_postop_sg_list(skdev, skreq);
-		skreq->n_sg = 0;
-		return -EIO;
-	}
-
-	return 0;
-}
-
-static int skd_preop_sg_list(struct skd_device *skdev,
-			     struct skd_request_context *skreq)
-{
-	if (!skd_bio)
-		return skd_preop_sg_list_blk(skdev, skreq);
-	else
-		return skd_preop_sg_list_bio(skdev, skreq);
-}
-
-static void skd_postop_sg_list_bio(struct skd_device *skdev,
-				   struct skd_request_context *skreq)
-{
-	int writing = skreq->sg_data_dir == SKD_DATA_DIR_HOST_TO_CARD;
-	int pci_dir = writing ? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE;
-	int i;
-	struct fit_sg_descriptor *sgd;
-
-	/*
-	 * restore the next ptr for next IO request so we
-	 * don't have to set it every time.
-	 */
-	skreq->sksg_list[skreq->n_sg - 1].next_desc_ptr =
-		skreq->sksg_dma_address +
-		((skreq->n_sg) * sizeof(struct fit_sg_descriptor));
-
-	for (i = 0; i < skreq->n_sg; i++) {
-		sgd = &skreq->sksg_list[i];
-		pci_unmap_page(skdev->pdev, sgd->host_side_addr,
-			       sgd->byte_count, pci_dir);
-	}
-}
-
-static void skd_postop_sg_list(struct skd_device *skdev,
-			       struct skd_request_context *skreq)
-{
-	if (!skd_bio)
-		skd_postop_sg_list_blk(skdev, skreq);
-	else
-		skd_postop_sg_list_bio(skdev, skreq);
-}
-
 static void skd_end_request(struct skd_device *skdev,
 			    struct skd_request_context *skreq, int error)
 {
-	if (likely(!skd_bio))
-		skd_end_request_blk(skdev, skreq, error);
-	else
-		skd_end_request_bio(skdev, skreq, error);
+	skd_end_request_blk(skdev, skreq, error);
 }
 
 static void skd_request_fn_not_online(struct request_queue *q)
@@ -2754,13 +2454,10 @@ static void skd_resolve_req_exception(struct skd_device *skdev,
 		break;
 
 	case SKD_CHECK_STATUS_REQUEUE_REQUEST:
-		if (!skd_bio) {
-			if ((unsigned long) ++skreq->req->special <
-			    SKD_MAX_RETRIES) {
-				skd_log_skreq(skdev, skreq, "retry");
-				skd_requeue_request(skdev, skreq);
-				break;
-			}
+		if ((unsigned long) ++skreq->req->special < SKD_MAX_RETRIES) {
+			skd_log_skreq(skdev, skreq, "retry");
+			skd_requeue_request(skdev, skreq);
+			break;
 		}
 	/* fall through to report error */
 
@@ -2774,12 +2471,7 @@ static void skd_resolve_req_exception(struct skd_device *skdev,
 static void skd_requeue_request(struct skd_device *skdev,
 				struct skd_request_context *skreq)
 {
-	if (!skd_bio) {
-		blk_requeue_request(skdev->queue, skreq->req);
-	} else {
-		bio_list_add_head(&skdev->bio_queue, skreq->bio);
-		skreq->bio = NULL;
-	}
+	blk_requeue_request(skdev->queue, skreq->req);
 }
 
 
@@ -2840,11 +2532,7 @@ static void skd_release_skreq(struct skd_device *skdev,
 	/*
 	 * Reset backpointer
 	 */
-	if (likely(!skd_bio))
-		skreq->req = NULL;
-	else
-		skreq->bio = NULL;
-
+	skreq->req = NULL;
 
 	/*
 	 * Reclaim the skd_request_context
@@ -3084,8 +2772,6 @@ static int skd_isr_completion_posted(struct skd_device *skdev,
 	u32 cmp_bytes = 0;
 	int rc = 0;
 	int processed = 0;
-	int ret;
-
 
 	for (;; ) {
 		SKD_ASSERT(skdev->skcomp_ix < SKD_N_COMPLETION_ENTRY);
@@ -3180,8 +2866,7 @@ static int skd_isr_completion_posted(struct skd_device *skdev,
 		if (skreq->n_sg > 0)
 			skd_postop_sg_list(skdev, skreq);
 
-		if (((!skd_bio) && !skreq->req) ||
-		    ((skd_bio) && !skreq->bio)) {
+		if (!skreq->req) {
 			pr_debug("%s:%s:%d NULL backptr skdreq %p, "
 				 "req=0x%x req_id=0x%x\n",
 				 skdev->name, __func__, __LINE__,
@@ -3191,30 +2876,10 @@ static int skd_isr_completion_posted(struct skd_device *skdev,
 			 * Capture the outcome and post it back to the
 			 * native request.
 			 */
-			if (likely(cmp_status == SAM_STAT_GOOD)) {
-				if (unlikely(skreq->flush_cmd)) {
-					if (skd_bio) {
-						/* if empty size bio, we are all done */
-						if (bio_sectors(skreq->bio) == 0) {
-							skd_end_request(skdev, skreq, 0);
-						} else {
-							ret = skd_flush_cmd_enqueue(skdev, (void *)skreq->bio);
-							if (ret != 0) {
-								pr_err("Failed to enqueue flush bio with Data. Err=%d.\n", ret);
-								skd_end_request(skdev, skreq, ret);
-							} else {
-								((*enqueued)++);
-							}
-						}
-					} else {
-						skd_end_request(skdev, skreq, 0);
-					}
-				} else {
-					skd_end_request(skdev, skreq, 0);
-				}
-			} else {
+			if (likely(cmp_status == SAM_STAT_GOOD))
+				skd_end_request(skdev, skreq, 0);
+			else
 				skd_resolve_req_exception(skdev, skreq);
-			}
 		}
 
 		/*
@@ -3645,29 +3310,20 @@ static void skd_recover_requests(struct skd_device *skdev, int requeue)
 			skd_log_skreq(skdev, skreq, "recover");
 
 			SKD_ASSERT((skreq->id & SKD_ID_INCR) != 0);
-			if (!skd_bio)
-				SKD_ASSERT(skreq->req != NULL);
-			else
-				SKD_ASSERT(skreq->bio != NULL);
+			SKD_ASSERT(skreq->req != NULL);
 
 			/* Release DMA resources for the request. */
 			if (skreq->n_sg > 0)
 				skd_postop_sg_list(skdev, skreq);
 
-			if (!skd_bio) {
-				if (requeue &&
-				    (unsigned long) ++skreq->req->special <
-				    SKD_MAX_RETRIES)
-					skd_requeue_request(skdev, skreq);
-				else
-				skd_end_request(skdev, skreq, -EIO);
-			} else
+			if (requeue &&
+			    (unsigned long) ++skreq->req->special <
+			    SKD_MAX_RETRIES)
+				skd_requeue_request(skdev, skreq);
+			else
 				skd_end_request(skdev, skreq, -EIO);
 
-			if (!skd_bio)
-				skreq->req = NULL;
-			else
-				skreq->bio = NULL;
+			skreq->req = NULL;
 
 			skreq->state = SKD_REQ_STATE_IDLE;
 			skreq->id += SKD_ID_INCR;
@@ -4580,16 +4236,11 @@ static struct skd_device *skd_construct(struct pci_dev *pdev)
 	skdev->sgs_per_request = skd_sgs_per_request;
 	skdev->dbg_level = skd_dbg_level;
 
-	if (skd_bio)
-		bio_list_init(&skdev->bio_queue);
-
-
 	atomic_set(&skdev->device_count, 0);
 
 	spin_lock_init(&skdev->lock);
 
 	INIT_WORK(&skdev->completion_worker, skd_completion_worker);
-	INIT_LIST_HEAD(&skdev->flush_list);
 
 	pr_debug("%s:%s:%d skcomp\n", skdev->name, __func__, __LINE__);
 	rc = skd_cons_skcomp(skdev);
@@ -4941,13 +4592,7 @@ static int skd_cons_disk(struct skd_device *skdev)
 	disk->fops = &skd_blockdev_ops;
 	disk->private_data = skdev;
 
-	if (!skd_bio) {
-		q = blk_init_queue(skd_request_fn, &skdev->lock);
-	} else {
-		q = blk_alloc_queue(GFP_KERNEL);
-		q->queue_flags = QUEUE_FLAG_IO_STAT | QUEUE_FLAG_STACKABLE;
-	}
-
+	q = blk_init_queue(skd_request_fn, &skdev->lock);
 	if (!q) {
 		rc = -ENOMEM;
 		goto err_out;
@@ -4957,11 +4602,6 @@ static int skd_cons_disk(struct skd_device *skdev)
 	disk->queue = q;
 	q->queuedata = skdev;
 
-	if (skd_bio) {
-		q->queue_lock = &skdev->lock;
-		blk_queue_make_request(q, skd_make_request);
-	}
-
 	blk_queue_flush(q, REQ_FLUSH | REQ_FUA);
 	blk_queue_max_segments(q, skdev->sgs_per_request);
 	blk_queue_max_hw_sectors(q, SKD_N_MAX_SECTORS);
@@ -5794,35 +5434,19 @@ static void skd_log_skreq(struct skd_device *skdev,
 		 skdev->name, __func__, __LINE__,
 		 skreq->timeout_stamp, skreq->sg_data_dir, skreq->n_sg);
 
-	if (!skd_bio) {
-		if (skreq->req != NULL) {
-			struct request *req = skreq->req;
-			u32 lba = (u32)blk_rq_pos(req);
-			u32 count = blk_rq_sectors(req);
-
-			pr_debug("%s:%s:%d "
-				 "req=%p lba=%u(0x%x) count=%u(0x%x) dir=%d\n",
-				 skdev->name, __func__, __LINE__,
-				 req, lba, lba, count, count,
-				 (int)rq_data_dir(req));
-		} else
-			pr_debug("%s:%s:%d req=NULL\n",
-				 skdev->name, __func__, __LINE__);
-	} else {
-		if (skreq->bio != NULL) {
-			struct bio *bio = skreq->bio;
-			u32 lba = (u32)bio->bi_sector;
-			u32 count = bio_sectors(bio);
+	if (skreq->req != NULL) {
+		struct request *req = skreq->req;
+		u32 lba = (u32)blk_rq_pos(req);
+		u32 count = blk_rq_sectors(req);
 
-			pr_debug("%s:%s:%d "
-				 "bio=%p lba=%u(0x%x) count=%u(0x%x) dir=%d\n",
-				 skdev->name, __func__, __LINE__,
-				 bio, lba, lba, count, count,
-				 (int)bio_data_dir(bio));
-		} else
-			pr_debug("%s:%s:%d req=NULL\n",
-				 skdev->name, __func__, __LINE__);
-	}
+		pr_debug("%s:%s:%d "
+			 "req=%p lba=%u(0x%x) count=%u(0x%x) dir=%d\n",
+			 skdev->name, __func__, __LINE__,
+			 req, lba, lba, count, count,
+			 (int)rq_data_dir(req));
+	} else
+		pr_debug("%s:%s:%d req=NULL\n",
+			 skdev->name, __func__, __LINE__);
 }
 
 /*
@@ -5918,34 +5542,5 @@ static void __exit skd_exit(void)
 	kmem_cache_destroy(skd_flush_slab);
 }
 
-static int
-skd_flush_cmd_enqueue(struct skd_device *skdev, void *cmd)
-{
-	struct skd_flush_cmd *item;
-
-	item = kmem_cache_zalloc(skd_flush_slab, GFP_ATOMIC);
-	if (!item) {
-		pr_err("skd_flush_cmd_enqueue: Failed to allocated item.\n");
-		return -ENOMEM;
-	}
-
-	item->cmd = cmd;
-	list_add_tail(&item->flist, &skdev->flush_list);
-	return 0;
-}
-
-static void *
-skd_flush_cmd_dequeue(struct skd_device *skdev)
-{
-	void *cmd;
-	struct skd_flush_cmd *item;
-
-	item = list_entry(skdev->flush_list.next, struct skd_flush_cmd, flist);
-	list_del_init(&item->flist);
-	cmd = item->cmd;
-	kmem_cache_free(skd_flush_slab, item);
-	return cmd;
-}
-
 module_init(skd_init);
 module_exit(skd_exit);
-- 
cgit 


From 6a5ec65b9acee39f9af4a15a81858d5fc07498d0 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Fri, 1 Nov 2013 10:38:45 -0600
Subject: skd: cleanup the skd_*() function block wrapping

Just call the block functions directly, don't wrap them
in skd helpers. With only one queueing model enabled, there's
no point in doing that.

Also kill the ->start_time and ->bio from the skd_request_context,
we don't use those anymore.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/skd_main.c | 52 ++++++++++++++----------------------------------
 1 file changed, 15 insertions(+), 37 deletions(-)

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index 49e1e8b48422..d404d7646d9c 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -214,8 +214,6 @@ struct skd_request_context {
 	u32 fitmsg_id;
 
 	struct request *req;
-	struct bio *bio;
-	unsigned long start_time;
 	u8 flush_cmd;
 	u8 discard_page;
 
@@ -506,26 +504,6 @@ static void skd_log_skreq(struct skd_device *skdev,
  * READ/WRITE REQUESTS
  *****************************************************************************
  */
-static void skd_stop_queue(struct skd_device *skdev)
-{
-	blk_stop_queue(skdev->queue);
-}
-
-static void skd_unstop_queue(struct skd_device *skdev)
-{
-	queue_flag_clear(QUEUE_FLAG_STOPPED, skdev->queue);
-}
-
-static void skd_start_queue(struct skd_device *skdev)
-{
-	blk_start_queue(skdev->queue);
-}
-
-static int skd_queue_stopped(struct skd_device *skdev)
-{
-	return blk_queue_stopped(skdev->queue);
-}
-
 static void skd_fail_all_pending(struct skd_device *skdev)
 {
 	struct request_queue *q = skdev->queue;
@@ -634,14 +612,14 @@ static void skd_request_fn(struct request_queue *q)
 		return;
 	}
 
-	if (skd_queue_stopped(skdev)) {
+	if (blk_queue_stopped(skdev->queue)) {
 		if (skdev->skmsg_free_list == NULL ||
 		    skdev->skreq_free_list == NULL ||
 		    skdev->in_flight >= skdev->queue_low_water_mark)
 			/* There is still some kind of shortage */
 			return;
 
-		skd_unstop_queue(skdev);
+		queue_flag_clear(QUEUE_FLAG_STOPPED, skdev->queue);
 	}
 
 	/*
@@ -887,7 +865,7 @@ skip_sg:
 	 * we are out of a resource.
 	 */
 	if (req)
-		skd_stop_queue(skdev);
+		blk_stop_queue(skdev->queue);
 }
 
 static void skd_end_request_blk(struct skd_device *skdev,
@@ -1106,7 +1084,7 @@ static void skd_timer_tick(ulong arg)
 	skdev->timer_countdown = SKD_DRAINING_TIMO;
 	skdev->state = SKD_DRVR_STATE_DRAINING_TIMEOUT;
 	skdev->timo_slot = timo_slot;
-	skd_stop_queue(skdev);
+	blk_stop_queue(skdev->queue);
 
 timer_func_out:
 	mod_timer(&skdev->timer, (jiffies + HZ));
@@ -1165,7 +1143,7 @@ static void skd_timer_tick_not_online(struct skd_device *skdev)
 
 		/*start the queue so we can respond with error to requests */
 		/* wakeup anyone waiting for startup complete */
-		skd_start_queue(skdev);
+		blk_start_queue(skdev->queue);
 		skdev->gendisk_on = -1;
 		wake_up_interruptible(&skdev->waitq);
 		break;
@@ -1191,7 +1169,7 @@ static void skd_timer_tick_not_online(struct skd_device *skdev)
 			pr_debug("%s:%s:%d Slot drained, starting queue.\n",
 				 skdev->name, __func__, __LINE__);
 			skdev->state = SKD_DRVR_STATE_ONLINE;
-			skd_start_queue(skdev);
+			blk_start_queue(skdev->queue);
 			return;
 		}
 		if (skdev->timer_countdown > 0) {
@@ -1241,7 +1219,7 @@ static void skd_timer_tick_not_online(struct skd_device *skdev)
 
 		/*start the queue so we can respond with error to requests */
 		/* wakeup anyone waiting for startup complete */
-		skd_start_queue(skdev);
+		blk_start_queue(skdev->queue);
 		skdev->gendisk_on = -1;
 		wake_up_interruptible(&skdev->waitq);
 		break;
@@ -3241,7 +3219,7 @@ static void skd_isr_fwstate(struct skd_device *skdev)
 		 */
 		skdev->state = SKD_DRVR_STATE_BUSY_SANITIZE;
 		skdev->timer_countdown = SKD_TIMER_SECONDS(3);
-		skd_start_queue(skdev);
+		blk_start_queue(skdev->queue);
 		break;
 	case FIT_SR_DRIVE_BUSY_ERASE:
 		skdev->state = SKD_DRVR_STATE_BUSY_ERASE;
@@ -3276,7 +3254,7 @@ static void skd_isr_fwstate(struct skd_device *skdev)
 	case FIT_SR_DRIVE_FAULT:
 		skd_drive_fault(skdev);
 		skd_recover_requests(skdev, 0);
-		skd_start_queue(skdev);
+		blk_start_queue(skdev->queue);
 		break;
 
 	/* PCIe bus returned all Fs? */
@@ -3285,7 +3263,7 @@ static void skd_isr_fwstate(struct skd_device *skdev)
 		       skd_name(skdev), state, sense);
 		skd_drive_disappeared(skdev);
 		skd_recover_requests(skdev, 0);
-		skd_start_queue(skdev);
+		blk_start_queue(skdev->queue);
 		break;
 	default:
 		/*
@@ -3609,7 +3587,7 @@ static void skd_start_device(struct skd_device *skdev)
 		/*start the queue so we can respond with error to requests */
 		pr_debug("%s:%s:%d starting %s queue\n",
 			 skdev->name, __func__, __LINE__, skdev->name);
-		skd_start_queue(skdev);
+		blk_start_queue(skdev->queue);
 		skdev->gendisk_on = -1;
 		wake_up_interruptible(&skdev->waitq);
 		break;
@@ -3621,7 +3599,7 @@ static void skd_start_device(struct skd_device *skdev)
 		/*start the queue so we can respond with error to requests */
 		pr_debug("%s:%s:%d starting %s queue to error-out reqs\n",
 			 skdev->name, __func__, __LINE__, skdev->name);
-		skd_start_queue(skdev);
+		blk_start_queue(skdev->queue);
 		skdev->gendisk_on = -1;
 		wake_up_interruptible(&skdev->waitq);
 		break;
@@ -3766,7 +3744,7 @@ static int skd_quiesce_dev(struct skd_device *skdev)
 	case SKD_DRVR_STATE_BUSY_IMMINENT:
 		pr_debug("%s:%s:%d stopping %s queue\n",
 			 skdev->name, __func__, __LINE__, skdev->name);
-		skd_stop_queue(skdev);
+		blk_stop_queue(skdev->queue);
 		break;
 	case SKD_DRVR_STATE_ONLINE:
 	case SKD_DRVR_STATE_STOPPING:
@@ -3835,7 +3813,7 @@ static int skd_unquiesce_dev(struct skd_device *skdev)
 		pr_debug("%s:%s:%d starting %s queue\n",
 			 skdev->name, __func__, __LINE__, skdev->name);
 		pr_info("(%s): STEC s1120 ONLINE\n", skd_name(skdev));
-		skd_start_queue(skdev);
+		blk_start_queue(skdev->queue);
 		skdev->gendisk_on = 1;
 		wake_up_interruptible(&skdev->waitq);
 		break;
@@ -4620,7 +4598,7 @@ static int skd_cons_disk(struct skd_device *skdev)
 	spin_lock_irqsave(&skdev->lock, flags);
 	pr_debug("%s:%s:%d stopping %s queue\n",
 		 skdev->name, __func__, __LINE__, skdev->name);
-	skd_stop_queue(skdev);
+	blk_stop_queue(skdev->queue);
 	spin_unlock_irqrestore(&skdev->lock, flags);
 
 err_out:
-- 
cgit 


From 38d4a1bb994e87057bc8b59e393931904b6b8bc0 Mon Sep 17 00:00:00 2001
From: Mike Snitzer <snitzer@redhat.com>
Date: Fri, 1 Nov 2013 15:05:10 -0400
Subject: skd: more removal of bio-based code

Remove skd_flush_cmd structure and skd_flush_slab.
Remove skd_end_request wrapper around skd_end_request_blk.
Remove skd_requeue_request, use blk_requeue_request directly.
Cleanup some comments (remove "bio" info) and whitespace.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/skd_main.c | 91 +++++++++++-------------------------------------
 1 file changed, 20 insertions(+), 71 deletions(-)

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index d404d7646d9c..5dc5b39e5b85 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -86,7 +86,7 @@ enum {
 MODULE_AUTHOR("bug-reports: support@stec-inc.com");
 MODULE_LICENSE("Dual BSD/GPL");
 
-MODULE_DESCRIPTION("STEC s1120 PCIe SSD block/BIO driver (b" DRV_BUILD_ID ")");
+MODULE_DESCRIPTION("STEC s1120 PCIe SSD block driver (b" DRV_BUILD_ID ")");
 MODULE_VERSION(DRV_VERSION "-" DRV_BUILD_ID);
 
 #define PCI_VENDOR_ID_STEC      0x1B39
@@ -352,21 +352,8 @@ struct skd_device {
 
 	u32 timo_slot;
 
-	struct work_struct completion_worker;
-};
-
-#define SKD_FLUSH_JOB   "skd-flush-jobs"
-struct kmem_cache *skd_flush_slab;
 
-/*
- * These commands hold "nonzero size FLUSH bios",
- * which are enqueud in skdev->flush_list during
- * completion of "zero size FLUSH commands".
- * It will be active in biomode.
- */
-struct skd_flush_cmd {
-	void *cmd;
-	struct list_head flist;
+	struct work_struct completion_worker;
 };
 
 #define SKD_WRITEL(DEV, VAL, OFF) skd_reg_write32(DEV, VAL, OFF)
@@ -541,7 +528,7 @@ skd_prep_rw_cdb(struct skd_scsi_request *scsi_req,
 
 static void
 skd_prep_zerosize_flush_cdb(struct skd_scsi_request *scsi_req,
-			struct skd_request_context *skreq)
+			    struct skd_request_context *skreq)
 {
 	skreq->flush_cmd = 1;
 
@@ -559,9 +546,9 @@ skd_prep_zerosize_flush_cdb(struct skd_scsi_request *scsi_req,
 
 static void
 skd_prep_discard_cdb(struct skd_scsi_request *scsi_req,
-			struct skd_request_context *skreq,
-			struct page *page,
-			u32 lba, u32 count)
+		     struct skd_request_context *skreq,
+		     struct page *page,
+		     u32 lba, u32 count)
 {
 	char *buf;
 	unsigned long len;
@@ -655,10 +642,7 @@ static void skd_request_fn(struct request_queue *q)
 			 skdev->name, __func__, __LINE__,
 			 req, lba, lba, count, count, data_dir);
 
-		/* At this point we know there is a request
-		 * (from our bio q or req q depending on the way
-		 * the driver is built do checks for resources.
-		 */
+		/* At this point we know there is a request */
 
 		/* Are too many requets already in progress? */
 		if (skdev->in_flight >= skdev->cur_max_queue_depth) {
@@ -693,7 +677,7 @@ static void skd_request_fn(struct request_queue *q)
 		skreq->discard_page = 0;
 
 		/*
-		 * OK to now dequeue request from either bio or q.
+		 * OK to now dequeue request from q.
 		 *
 		 * At this point we are comitted to either start or reject
 		 * the native request. Note that skd_request_context is
@@ -868,15 +852,15 @@ skip_sg:
 		blk_stop_queue(skdev->queue);
 }
 
-static void skd_end_request_blk(struct skd_device *skdev,
-				struct skd_request_context *skreq, int error)
+static void skd_end_request(struct skd_device *skdev,
+			    struct skd_request_context *skreq, int error)
 {
 	struct request *req = skreq->req;
 	unsigned int io_flags = req->cmd_flags;
 
 	if ((io_flags & REQ_DISCARD) &&
 		(skreq->discard_page == 1)) {
-		pr_debug("%s:%s:%d skd_end_request_blk, free the page!",
+		pr_debug("%s:%s:%d, free the page!",
 			 skdev->name, __func__, __LINE__);
 		free_page((unsigned long)req->buffer);
 		req->buffer = NULL;
@@ -898,7 +882,7 @@ static void skd_end_request_blk(struct skd_device *skdev,
 }
 
 static int skd_preop_sg_list(struct skd_device *skdev,
-				 struct skd_request_context *skreq)
+			     struct skd_request_context *skreq)
 {
 	struct request *req = skreq->req;
 	int writing = skreq->sg_data_dir == SKD_DATA_DIR_HOST_TO_CARD;
@@ -961,7 +945,7 @@ static int skd_preop_sg_list(struct skd_device *skdev,
 }
 
 static void skd_postop_sg_list(struct skd_device *skdev,
-				   struct skd_request_context *skreq)
+			       struct skd_request_context *skreq)
 {
 	int writing = skreq->sg_data_dir == SKD_DATA_DIR_HOST_TO_CARD;
 	int pci_dir = writing ? PCI_DMA_TODEVICE : PCI_DMA_FROMDEVICE;
@@ -976,12 +960,6 @@ static void skd_postop_sg_list(struct skd_device *skdev,
 	pci_unmap_sg(skdev->pdev, &skreq->sg[0], skreq->n_sg, pci_dir);
 }
 
-static void skd_end_request(struct skd_device *skdev,
-			    struct skd_request_context *skreq, int error)
-{
-	skd_end_request_blk(skdev, skreq, error);
-}
-
 static void skd_request_fn_not_online(struct request_queue *q)
 {
 	struct skd_device *skdev = q->queuedata;
@@ -1525,7 +1503,7 @@ static int skd_sg_io_obtain_skspcl(struct skd_device *skdev,
 	struct skd_special_context *skspcl = NULL;
 	int rc;
 
-	for (;; ) {
+	for (;;) {
 		ulong flags;
 
 		spin_lock_irqsave(&skdev->lock, flags);
@@ -2300,10 +2278,6 @@ static void skd_complete_other(struct skd_device *skdev,
 			       volatile struct fit_completion_entry_v1 *skcomp,
 			       volatile struct fit_comp_error_info *skerr);
 
-
-static void skd_requeue_request(struct skd_device *skdev,
-				struct skd_request_context *skreq);
-
 struct sns_info {
 	u8 type;
 	u8 stat;
@@ -2349,9 +2323,9 @@ static struct sns_info skd_chkstat_table[] = {
  * type and stat, ignore key, asc, ascq.
  */
 
-static enum skd_check_status_action skd_check_status(struct skd_device *skdev,
-				u8 cmp_status,
-				volatile struct fit_comp_error_info *skerr)
+static enum skd_check_status_action
+skd_check_status(struct skd_device *skdev,
+		 u8 cmp_status, volatile struct fit_comp_error_info *skerr)
 {
 	int i, n;
 
@@ -2424,7 +2398,7 @@ static void skd_resolve_req_exception(struct skd_device *skdev,
 
 	case SKD_CHECK_STATUS_BUSY_IMMINENT:
 		skd_log_skreq(skdev, skreq, "retry(busy)");
-		skd_requeue_request(skdev, skreq);
+		blk_requeue_request(skdev->queue, skreq->req);
 		pr_info("(%s) drive BUSY imminent\n", skd_name(skdev));
 		skdev->state = SKD_DRVR_STATE_BUSY_IMMINENT;
 		skdev->timer_countdown = SKD_TIMER_MINUTES(20);
@@ -2434,7 +2408,7 @@ static void skd_resolve_req_exception(struct skd_device *skdev,
 	case SKD_CHECK_STATUS_REQUEUE_REQUEST:
 		if ((unsigned long) ++skreq->req->special < SKD_MAX_RETRIES) {
 			skd_log_skreq(skdev, skreq, "retry");
-			skd_requeue_request(skdev, skreq);
+			blk_requeue_request(skdev->queue, skreq->req);
 			break;
 		}
 	/* fall through to report error */
@@ -2446,14 +2420,6 @@ static void skd_resolve_req_exception(struct skd_device *skdev,
 	}
 }
 
-static void skd_requeue_request(struct skd_device *skdev,
-				struct skd_request_context *skreq)
-{
-	blk_requeue_request(skdev->queue, skreq->req);
-}
-
-
-
 /* assume spinlock is already held */
 static void skd_release_skreq(struct skd_device *skdev,
 			      struct skd_request_context *skreq)
@@ -2998,7 +2964,6 @@ static void skd_release_special(struct skd_device *skdev,
 	int i, was_depleted;
 
 	for (i = 0; i < skspcl->req.n_sg; i++) {
-
 		struct page *page = sg_page(&skspcl->req.sg[i]);
 		__free_page(page);
 	}
@@ -3141,7 +3106,6 @@ static skd_isr(int irq, void *ptr)
 	return rc;
 }
 
-
 static void skd_drive_fault(struct skd_device *skdev)
 {
 	skdev->state = SKD_DRVR_STATE_FAULT;
@@ -3297,7 +3261,7 @@ static void skd_recover_requests(struct skd_device *skdev, int requeue)
 			if (requeue &&
 			    (unsigned long) ++skreq->req->special <
 			    SKD_MAX_RETRIES)
-				skd_requeue_request(skdev, skreq);
+				blk_requeue_request(skdev->queue, skreq->req);
 			else
 				skd_end_request(skdev, skreq, -EIO);
 
@@ -3305,8 +3269,6 @@ static void skd_recover_requests(struct skd_device *skdev, int requeue)
 
 			skreq->state = SKD_REQ_STATE_IDLE;
 			skreq->id += SKD_ID_INCR;
-
-
 		}
 		if (i > 0)
 			skreq[-1].next = skreq;
@@ -3879,7 +3841,6 @@ static irqreturn_t skd_comp_q(int irq, void *skd_host_data)
 	SKD_WRITEL(skdev, FIT_ISH_COMPLETION_POSTED, FIT_INT_STATUS_HOST);
 	deferred = skd_isr_completion_posted(skdev, skd_isr_comp_limit,
 						&flush_enqueued);
-
 	if (flush_enqueued)
 		skd_request_fn(skdev->queue);
 
@@ -5450,15 +5411,6 @@ static int __init skd_init(void)
 		skd_isr_type = SKD_IRQ_DEFAULT;
 	}
 
-	skd_flush_slab = kmem_cache_create(SKD_FLUSH_JOB,
-						sizeof(struct skd_flush_cmd),
-						0, 0, NULL);
-
-	if (!skd_flush_slab) {
-		pr_err("failed to allocated flush slab.\n");
-		return -ENOMEM;
-	}
-
 	if (skd_max_queue_depth < 1
 	    || skd_max_queue_depth > SKD_MAX_QUEUE_DEPTH) {
 		pr_info(
@@ -5507,7 +5459,6 @@ static int __init skd_init(void)
 	skd_major = rc;
 
 	return pci_register_driver(&skd_driver);
-
 }
 
 static void __exit skd_exit(void)
@@ -5516,8 +5467,6 @@ static void __exit skd_exit(void)
 
 	unregister_blkdev(skd_major, DRV_NAME);
 	pci_unregister_driver(&skd_driver);
-
-	kmem_cache_destroy(skd_flush_slab);
 }
 
 module_init(skd_init);
-- 
cgit 


From a073ae953ee20b33c8463f76d563fd7e2851c0ac Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Tue, 5 Nov 2013 12:36:59 +0100
Subject: skd: fix unregister_blkdev() placement

register_blkdev() is called before pci_register_driver() in skd_init()
so unregister_blkdev() should be called after pci_unregister_driver()
in skd_exit(). Fix it.

Cc: Akhil Bhansali <abhansali@stec-inc.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/skd_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index 5dc5b39e5b85..6f09bca3a24f 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -5465,8 +5465,8 @@ static void __exit skd_exit(void)
 {
 	pr_info(PFX " v%s-b%s unloading\n", DRV_VERSION, DRV_BUILD_ID);
 
-	unregister_blkdev(skd_major, DRV_NAME);
 	pci_unregister_driver(&skd_driver);
+	unregister_blkdev(skd_major, DRV_NAME);
 }
 
 module_init(skd_init);
-- 
cgit 


From 2b91c55222a0b2381e12328ca8cc60e6a823a998 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Tue, 5 Nov 2013 12:37:00 +0100
Subject: skd: fix error paths in skd_init()

Cc: Akhil Bhansali <abhansali@stec-inc.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/skd_main.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index 6f09bca3a24f..8c96d182601d 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -5396,7 +5396,7 @@ static void skd_log_skreq(struct skd_device *skdev,
 
 static int __init skd_init(void)
 {
-	int rc = 0;
+	int rc = -ENOMEM;
 
 	pr_info(PFX " v%s-b%s loaded\n", DRV_VERSION, DRV_BUILD_ID);
 
@@ -5454,11 +5454,21 @@ static int __init skd_init(void)
 	/* Obtain major device number. */
 	rc = register_blkdev(0, DRV_NAME);
 	if (rc < 0)
-		return rc;
+		goto err_register_blkdev;
 
 	skd_major = rc;
 
-	return pci_register_driver(&skd_driver);
+	rc = pci_register_driver(&skd_driver);
+	if (rc < 0)
+		goto err_pci_register_driver;
+
+	return rc;
+
+err_pci_register_driver:
+	unregister_blkdev(skd_major, DRV_NAME);
+
+err_register_blkdev:
+	return rc;
 }
 
 static void __exit skd_exit(void)
-- 
cgit 


From fbed149ab328b72f501a3344ab4f20f712c63392 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Tue, 5 Nov 2013 12:37:01 +0100
Subject: skd: fix error messages in skd_init()

* change priority level from KERN_INFO to KERN_ERR
* add "skd: " prefix
* do minor CodingStyle fixes

Cc: Akhil Bhansali <abhansali@stec-inc.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/skd_main.c | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index 8c96d182601d..99d5d1251c45 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -5406,47 +5406,44 @@ static int __init skd_init(void)
 	case SKD_IRQ_MSIX:
 		break;
 	default:
-		pr_info("skd_isr_type %d invalid, re-set to %d\n",
+		pr_err(PFX "skd_isr_type %d invalid, re-set to %d\n",
 		       skd_isr_type, SKD_IRQ_DEFAULT);
 		skd_isr_type = SKD_IRQ_DEFAULT;
 	}
 
-	if (skd_max_queue_depth < 1
-	    || skd_max_queue_depth > SKD_MAX_QUEUE_DEPTH) {
-		pr_info(
-		       "skd_max_queue_depth %d invalid, re-set to %d\n",
+	if (skd_max_queue_depth < 1 ||
+	    skd_max_queue_depth > SKD_MAX_QUEUE_DEPTH) {
+		pr_err(PFX "skd_max_queue_depth %d invalid, re-set to %d\n",
 		       skd_max_queue_depth, SKD_MAX_QUEUE_DEPTH_DEFAULT);
 		skd_max_queue_depth = SKD_MAX_QUEUE_DEPTH_DEFAULT;
 	}
 
 	if (skd_max_req_per_msg < 1 || skd_max_req_per_msg > 14) {
-		pr_info(
-		       "skd_max_req_per_msg %d invalid, re-set to %d\n",
+		pr_err(PFX "skd_max_req_per_msg %d invalid, re-set to %d\n",
 		       skd_max_req_per_msg, SKD_MAX_REQ_PER_MSG_DEFAULT);
 		skd_max_req_per_msg = SKD_MAX_REQ_PER_MSG_DEFAULT;
 	}
 
 	if (skd_sgs_per_request < 1 || skd_sgs_per_request > 4096) {
-		pr_info(
-		       "skd_sg_per_request %d invalid, re-set to %d\n",
+		pr_err(PFX "skd_sg_per_request %d invalid, re-set to %d\n",
 		       skd_sgs_per_request, SKD_N_SG_PER_REQ_DEFAULT);
 		skd_sgs_per_request = SKD_N_SG_PER_REQ_DEFAULT;
 	}
 
 	if (skd_dbg_level < 0 || skd_dbg_level > 2) {
-		pr_info("skd_dbg_level %d invalid, re-set to %d\n",
+		pr_err(PFX "skd_dbg_level %d invalid, re-set to %d\n",
 		       skd_dbg_level, 0);
 		skd_dbg_level = 0;
 	}
 
 	if (skd_isr_comp_limit < 0) {
-		pr_info("skd_isr_comp_limit %d invalid, set to %d\n",
+		pr_err(PFX "skd_isr_comp_limit %d invalid, set to %d\n",
 		       skd_isr_comp_limit, 0);
 		skd_isr_comp_limit = 0;
 	}
 
 	if (skd_max_pass_thru < 1 || skd_max_pass_thru > 50) {
-		pr_info("skd_max_pass_thru %d invalid, re-set to %d\n",
+		pr_err(PFX "skd_max_pass_thru %d invalid, re-set to %d\n",
 		       skd_max_pass_thru, SKD_N_SPECIAL_CONTEXT);
 		skd_max_pass_thru = SKD_N_SPECIAL_CONTEXT;
 	}
-- 
cgit 


From b8df6647c248db457f1c2fb4f0f6350beaf16f9e Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Tue, 5 Nov 2013 12:37:02 +0100
Subject: skd: register block device only if some devices are present

Register block device in skd_pci_probe() instead of in skd_init() so it
is registered only if some devices are present (currently it is always
registered when the driver is loaded). Please note that this change
depends on the fact that register_blkdev(0, ...) never returns 0.

Cc: Akhil Bhansali <abhansali@stec-inc.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/skd_main.c | 33 ++++++++++++---------------------
 1 file changed, 12 insertions(+), 21 deletions(-)

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index 99d5d1251c45..9ff34be89f99 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -4899,6 +4899,14 @@ static int skd_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		}
 	}
 
+	if (!skd_major) {
+		rc = register_blkdev(0, DRV_NAME);
+		if (rc < 0)
+			goto err_out_regions;
+		BUG_ON(!rc);
+		skd_major = rc;
+	}
+
 	skdev = skd_construct(pdev);
 	if (skdev == NULL) {
 		rc = -ENOMEM;
@@ -5396,8 +5404,6 @@ static void skd_log_skreq(struct skd_device *skdev,
 
 static int __init skd_init(void)
 {
-	int rc = -ENOMEM;
-
 	pr_info(PFX " v%s-b%s loaded\n", DRV_VERSION, DRV_BUILD_ID);
 
 	switch (skd_isr_type) {
@@ -5448,24 +5454,7 @@ static int __init skd_init(void)
 		skd_max_pass_thru = SKD_N_SPECIAL_CONTEXT;
 	}
 
-	/* Obtain major device number. */
-	rc = register_blkdev(0, DRV_NAME);
-	if (rc < 0)
-		goto err_register_blkdev;
-
-	skd_major = rc;
-
-	rc = pci_register_driver(&skd_driver);
-	if (rc < 0)
-		goto err_pci_register_driver;
-
-	return rc;
-
-err_pci_register_driver:
-	unregister_blkdev(skd_major, DRV_NAME);
-
-err_register_blkdev:
-	return rc;
+	return pci_register_driver(&skd_driver);
 }
 
 static void __exit skd_exit(void)
@@ -5473,7 +5462,9 @@ static void __exit skd_exit(void)
 	pr_info(PFX " v%s-b%s unloading\n", DRV_VERSION, DRV_BUILD_ID);
 
 	pci_unregister_driver(&skd_driver);
-	unregister_blkdev(skd_major, DRV_NAME);
+
+	if (skd_major)
+		unregister_blkdev(skd_major, DRV_NAME);
 }
 
 module_init(skd_init);
-- 
cgit 


From 43504631d04253d9866b9fbd2e06aed2e88a692b Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Tue, 5 Nov 2013 12:37:03 +0100
Subject: skd: remove SCSI subsystem specific includes

This is not a SCSI host driver so remove SCSI subsystem specific
includes.

Cc: Akhil Bhansali <abhansali@stec-inc.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/skd_main.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index 9ff34be89f99..47d8a6a0a0cf 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -42,9 +42,6 @@
 #include <linux/wait.h>
 #include <linux/uio.h>
 #include <scsi/scsi.h>
-#include <scsi/scsi_host.h>
-#include <scsi/scsi_tcq.h>
-#include <scsi/scsi_cmnd.h>
 #include <scsi/sg.h>
 #include <linux/io.h>
 #include <linux/uaccess.h>
-- 
cgit 


From 4ca90b533278f15849287b5b6c0c7dc45b134cde Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Tue, 5 Nov 2013 12:37:04 +0100
Subject: skd: use <asm/unaligned.h>

Use <asm/unaligned.h> instead of <asm-generic/unaligned.h>.

Cc: Akhil Bhansali <abhansali@stec-inc.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/skd_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index 47d8a6a0a0cf..e3dfd0dae44a 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -45,7 +45,7 @@
 #include <scsi/sg.h>
 #include <linux/io.h>
 #include <linux/uaccess.h>
-#include <asm-generic/unaligned.h>
+#include <asm/unaligned.h>
 
 #include "skd_s1120.h"
 
-- 
cgit 


From ebedd16dab5e7cf22fb1156b74fa53f0233389a7 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Tue, 5 Nov 2013 12:37:05 +0100
Subject: skd: remove redundant skdev->pdev assignment from skd_pci_probe()

skdev->pdev is set to pdev twice in skd_pci_probe(), first time
through skd_construct() call and the second time directly in
the function. Remove the second assignment as it is not needed.

Cc: Akhil Bhansali <abhansali@stec-inc.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/skd_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index e3dfd0dae44a..70118a12eb37 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -4925,7 +4925,7 @@ static int skd_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
 
 	pci_set_drvdata(pdev, skdev);
-	skdev->pdev = pdev;
+
 	skdev->disk->driverfs_dev = &pdev->dev;
 
 	for (i = 0; i < SKD_MAX_BARS; i++) {
-- 
cgit 


From 7f74e5e94477b7b859c239661399af1fe37927f8 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Tue, 5 Nov 2013 12:37:06 +0100
Subject: skd: remove SKD_OMIT_FROM_SRC_DIST ifdefs

SKD_OMIT_FROM_SRC_DIST is never defined.

Cc: Akhil Bhansali <abhansali@stec-inc.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/skd_s1120.h | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/drivers/block/skd_s1120.h b/drivers/block/skd_s1120.h
index bf01941cdd62..426581e6d170 100644
--- a/drivers/block/skd_s1120.h
+++ b/drivers/block/skd_s1120.h
@@ -21,11 +21,9 @@
 #define  FIT_QCMD_QID_MASK              (0x3 << 1)
 #define  FIT_QCMD_QID0                  (0x0 << 1)
 #define  FIT_QCMD_QID_NORMAL            FIT_QCMD_QID0
-#ifndef SKD_OMIT_FROM_SRC_DIST
 #define  FIT_QCMD_QID1                  (0x1 << 1)
 #define  FIT_QCMD_QID2                  (0x2 << 1)
 #define  FIT_QCMD_QID3                  (0x3 << 1)
-#endif /* SKD_OMIT_FROM_SRC_DIST */
 #define  FIT_QCMD_FLUSH_QUEUE           (0ull)      /* add QID */
 #define  FIT_QCMD_MSGSIZE_MASK          (0x3 << 4)
 #define  FIT_QCMD_MSGSIZE_64            (0x0 << 4)
@@ -39,13 +37,9 @@
  * Control, 32-bit r/w
  */
 #define FIT_CONTROL                 0x500u
-#ifndef SKD_OMIT_FROM_SRC_DIST
 #define  FIT_CR_HARD_RESET              (1u << 0u)
-#endif /* SKD_OMIT_FROM_SRC_DIST */
 #define  FIT_CR_SOFT_RESET              (1u << 1u)
-#ifndef SKD_OMIT_FROM_SRC_DIST
 #define	 FIT_CR_DIS_TIMESTAMPS		(1u << 6u)
-#endif /* SKD_OMIT_FROM_SRC_DIST */
 #define  FIT_CR_ENABLE_INTERRUPTS       (1u << 7u)
 
 /*
@@ -53,10 +47,8 @@
  */
 #define FIT_STATUS			0x510u
 #define FIT_SR_DRIVE_STATE_MASK		0x000000FFu
-#ifndef SKD_OMIT_FROM_SRC_DIST
 #define	FIT_SR_SIGNATURE		(0xFF << 8)
 #define	FIT_SR_PIO_DMA			(1 << 16)
-#endif /* SKD_OMIT_FROM_SRC_DIST */
 #define FIT_SR_DRIVE_OFFLINE		0x00
 #define FIT_SR_DRIVE_INIT		0x01
 /* #define FIT_SR_DRIVE_READY		0x02 */
@@ -74,14 +66,12 @@
 #define FIT_SR_DEVICE_MISSING           0xFF
 #define FIT_SR__RESERVED		0xFFFFFF00u
 
-#ifndef SKD_OMIT_FROM_SRC_DIST
 /*
  * FIT_STATUS - Status register data definition
  */
 #define	FIT_SR_STATE_MASK		(0xFF << 0)
 #define	FIT_SR_SIGNATURE		(0xFF << 8)
 #define	FIT_SR_PIO_DMA			(1 << 16)
-#endif /* SKD_OMIT_FROM_SRC_DIST */
 
 
 /*
@@ -189,10 +179,8 @@
 #define FIT_MFD_PM_SLEEP		        0x17u
 #define FIT_MFD_CMD_PROGRESS		    0x18u
 
-#ifndef SKD_OMIT_FROM_SRC_DIST
 #define FIT_MTD_DEBUG                   0xFEu
 #define FIT_MFD_DEBUG                   0xFFu
-#endif /* SKD_OMIT_FROM_SRC_DIST */
 
 #define FIT_MFD_MASK			(0xFFu)
 #define FIT_MFD_DATA_MASK		(0xFFu)
@@ -248,7 +236,6 @@ struct fit_msg_hdr {
 #define FIT_PROTOCOL_MINOR_VER(mtd_val) ((mtd_val >> 16) & 0xF)
 #define FIT_PROTOCOL_MAJOR_VER(mtd_val) ((mtd_val >> 20) & 0xF)
 
-#ifndef SKD_OMIT_FROM_SRC_DIST
 /*
  * Format of a completion entry. The completion queue is circular
  * and must have at least as many entries as the maximum number
@@ -264,7 +251,6 @@ struct fit_msg_hdr {
  * Command_context is opaque and taken verbatim from the SSDI command.
  * All other fields are big endian.
  */
-#endif /* SKD_OMIT_FROM_SRC_DIST */
 #define FIT_PROTOCOL_VERSION_0          0
 
 /*
-- 
cgit 


From fec23f63115622cfc82ed92e5d9348cb81c69173 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Tue, 5 Nov 2013 12:37:07 +0100
Subject: skd: cleanup skd_do_inq_page_da()

skdev->pdev and skdev->pdev->bus are always different than NULL in
skd_do_inq_page_da() so simplify the code accordingly.

Also cache skdev->pdev value in pdev variable while at it.

Cc: Akhil Bhansali <abhansali@stec-inc.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/skd_main.c | 39 +++++++++++++--------------------------
 1 file changed, 13 insertions(+), 26 deletions(-)

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index 70118a12eb37..2886a8c3a64d 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -2590,6 +2590,7 @@ static void skd_do_inq_page_da(struct skd_device *skdev,
 			       volatile struct fit_comp_error_info *skerr,
 			       uint8_t *cdb, uint8_t *buf)
 {
+	struct pci_dev *pdev = skdev->pdev;
 	unsigned max_bytes;
 	struct driver_inquiry_data inq;
 	u16 val;
@@ -2601,36 +2602,22 @@ static void skd_do_inq_page_da(struct skd_device *skdev,
 
 	inq.page_code = DRIVER_INQ_EVPD_PAGE_CODE;
 
-	if (skdev->pdev && skdev->pdev->bus) {
-		skd_get_link_info(skdev->pdev,
-				  &inq.pcie_link_speed, &inq.pcie_link_lanes);
-		inq.pcie_bus_number = cpu_to_be16(skdev->pdev->bus->number);
-		inq.pcie_device_number = PCI_SLOT(skdev->pdev->devfn);
-		inq.pcie_function_number = PCI_FUNC(skdev->pdev->devfn);
+	skd_get_link_info(pdev, &inq.pcie_link_speed, &inq.pcie_link_lanes);
+	inq.pcie_bus_number = cpu_to_be16(pdev->bus->number);
+	inq.pcie_device_number = PCI_SLOT(pdev->devfn);
+	inq.pcie_function_number = PCI_FUNC(pdev->devfn);
 
-		pci_read_config_word(skdev->pdev, PCI_VENDOR_ID, &val);
-		inq.pcie_vendor_id = cpu_to_be16(val);
+	pci_read_config_word(pdev, PCI_VENDOR_ID, &val);
+	inq.pcie_vendor_id = cpu_to_be16(val);
 
-		pci_read_config_word(skdev->pdev, PCI_DEVICE_ID, &val);
-		inq.pcie_device_id = cpu_to_be16(val);
+	pci_read_config_word(pdev, PCI_DEVICE_ID, &val);
+	inq.pcie_device_id = cpu_to_be16(val);
 
-		pci_read_config_word(skdev->pdev, PCI_SUBSYSTEM_VENDOR_ID,
-				     &val);
-		inq.pcie_subsystem_vendor_id = cpu_to_be16(val);
+	pci_read_config_word(pdev, PCI_SUBSYSTEM_VENDOR_ID, &val);
+	inq.pcie_subsystem_vendor_id = cpu_to_be16(val);
 
-		pci_read_config_word(skdev->pdev, PCI_SUBSYSTEM_ID, &val);
-		inq.pcie_subsystem_device_id = cpu_to_be16(val);
-	} else {
-		inq.pcie_bus_number = 0xFFFF;
-		inq.pcie_device_number = 0xFF;
-		inq.pcie_function_number = 0xFF;
-		inq.pcie_link_speed = 0xFF;
-		inq.pcie_link_lanes = 0xFF;
-		inq.pcie_vendor_id = 0xFFFF;
-		inq.pcie_device_id = 0xFFFF;
-		inq.pcie_subsystem_vendor_id = 0xFFFF;
-		inq.pcie_subsystem_device_id = 0xFFFF;
-	}
+	pci_read_config_word(pdev, PCI_SUBSYSTEM_ID, &val);
+	inq.pcie_subsystem_device_id = cpu_to_be16(val);
 
 	/* Driver version, fixed lenth, padded with spaces on the right */
 	inq.driver_version_length = sizeof(inq.driver_version);
-- 
cgit 


From 542d7b0015b8cb30d7c0772657408c6a6e9a8675 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Tue, 5 Nov 2013 12:37:08 +0100
Subject: skd: reorder construct/destruct code

Reorder placement of skd_construct(), skd_cons_sg_list(), skd_destruct()
and skd_free_sg_list() functions. Then remove no longer needed function
prototypes.

Cc: Akhil Bhansali <abhansali@stec-inc.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/skd_main.c | 305 ++++++++++++++++++++++-------------------------
 1 file changed, 141 insertions(+), 164 deletions(-)

diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c
index 2886a8c3a64d..9199c93be926 100644
--- a/drivers/block/skd_main.c
+++ b/drivers/block/skd_main.c
@@ -449,7 +449,6 @@ MODULE_PARM_DESC(skd_isr_comp_limit, "s1120 isr comp limit (0=none) default=4");
 /* Major device number dynamically assigned. */
 static u32 skd_major;
 
-static struct skd_device *skd_construct(struct pci_dev *pdev);
 static void skd_destruct(struct skd_device *skdev);
 static const struct block_device_operations skd_blockdev_ops;
 static void skd_send_fitmsg(struct skd_device *skdev,
@@ -4115,96 +4114,6 @@ static void skd_release_irq(struct skd_device *skdev)
  *****************************************************************************
  */
 
-static int skd_cons_skcomp(struct skd_device *skdev);
-static int skd_cons_skmsg(struct skd_device *skdev);
-static int skd_cons_skreq(struct skd_device *skdev);
-static int skd_cons_skspcl(struct skd_device *skdev);
-static int skd_cons_sksb(struct skd_device *skdev);
-static struct fit_sg_descriptor *skd_cons_sg_list(struct skd_device *skdev,
-						  u32 n_sg,
-						  dma_addr_t *ret_dma_addr);
-static int skd_cons_disk(struct skd_device *skdev);
-
-#define SKD_N_DEV_TABLE         16u
-static u32 skd_next_devno;
-
-static struct skd_device *skd_construct(struct pci_dev *pdev)
-{
-	struct skd_device *skdev;
-	int blk_major = skd_major;
-	int rc;
-
-	skdev = kzalloc(sizeof(*skdev), GFP_KERNEL);
-
-	if (!skdev) {
-		pr_err(PFX "(%s): memory alloc failure\n",
-		       pci_name(pdev));
-		return NULL;
-	}
-
-	skdev->state = SKD_DRVR_STATE_LOAD;
-	skdev->pdev = pdev;
-	skdev->devno = skd_next_devno++;
-	skdev->major = blk_major;
-	skdev->irq_type = skd_isr_type;
-	sprintf(skdev->name, DRV_NAME "%d", skdev->devno);
-	skdev->dev_max_queue_depth = 0;
-
-	skdev->num_req_context = skd_max_queue_depth;
-	skdev->num_fitmsg_context = skd_max_queue_depth;
-	skdev->n_special = skd_max_pass_thru;
-	skdev->cur_max_queue_depth = 1;
-	skdev->queue_low_water_mark = 1;
-	skdev->proto_ver = 99;
-	skdev->sgs_per_request = skd_sgs_per_request;
-	skdev->dbg_level = skd_dbg_level;
-
-	atomic_set(&skdev->device_count, 0);
-
-	spin_lock_init(&skdev->lock);
-
-	INIT_WORK(&skdev->completion_worker, skd_completion_worker);
-
-	pr_debug("%s:%s:%d skcomp\n", skdev->name, __func__, __LINE__);
-	rc = skd_cons_skcomp(skdev);
-	if (rc < 0)
-		goto err_out;
-
-	pr_debug("%s:%s:%d skmsg\n", skdev->name, __func__, __LINE__);
-	rc = skd_cons_skmsg(skdev);
-	if (rc < 0)
-		goto err_out;
-
-	pr_debug("%s:%s:%d skreq\n", skdev->name, __func__, __LINE__);
-	rc = skd_cons_skreq(skdev);
-	if (rc < 0)
-		goto err_out;
-
-	pr_debug("%s:%s:%d skspcl\n", skdev->name, __func__, __LINE__);
-	rc = skd_cons_skspcl(skdev);
-	if (rc < 0)
-		goto err_out;
-
-	pr_debug("%s:%s:%d sksb\n", skdev->name, __func__, __LINE__);
-	rc = skd_cons_sksb(skdev);
-	if (rc < 0)
-		goto err_out;
-
-	pr_debug("%s:%s:%d disk\n", skdev->name, __func__, __LINE__);
-	rc = skd_cons_disk(skdev);
-	if (rc < 0)
-		goto err_out;
-
-	pr_debug("%s:%s:%d VICTORY\n", skdev->name, __func__, __LINE__);
-	return skdev;
-
-err_out:
-	pr_debug("%s:%s:%d construct failed\n",
-		 skdev->name, __func__, __LINE__);
-	skd_destruct(skdev);
-	return NULL;
-}
-
 static int skd_cons_skcomp(struct skd_device *skdev)
 {
 	int rc = 0;
@@ -4292,6 +4201,35 @@ err_out:
 	return rc;
 }
 
+static struct fit_sg_descriptor *skd_cons_sg_list(struct skd_device *skdev,
+						  u32 n_sg,
+						  dma_addr_t *ret_dma_addr)
+{
+	struct fit_sg_descriptor *sg_list;
+	u32 nbytes;
+
+	nbytes = sizeof(*sg_list) * n_sg;
+
+	sg_list = pci_alloc_consistent(skdev->pdev, nbytes, ret_dma_addr);
+
+	if (sg_list != NULL) {
+		uint64_t dma_address = *ret_dma_addr;
+		u32 i;
+
+		memset(sg_list, 0, nbytes);
+
+		for (i = 0; i < n_sg - 1; i++) {
+			uint64_t ndp_off;
+			ndp_off = (i + 1) * sizeof(struct fit_sg_descriptor);
+
+			sg_list[i].next_desc_ptr = dma_address + ndp_off;
+		}
+		sg_list[i].next_desc_ptr = 0LL;
+	}
+
+	return sg_list;
+}
+
 static int skd_cons_skreq(struct skd_device *skdev)
 {
 	int rc = 0;
@@ -4465,35 +4403,6 @@ err_out:
 	return rc;
 }
 
-static struct fit_sg_descriptor *skd_cons_sg_list(struct skd_device *skdev,
-						  u32 n_sg,
-						  dma_addr_t *ret_dma_addr)
-{
-	struct fit_sg_descriptor *sg_list;
-	u32 nbytes;
-
-	nbytes = sizeof(*sg_list) * n_sg;
-
-	sg_list = pci_alloc_consistent(skdev->pdev, nbytes, ret_dma_addr);
-
-	if (sg_list != NULL) {
-		uint64_t dma_address = *ret_dma_addr;
-		u32 i;
-
-		memset(sg_list, 0, nbytes);
-
-		for (i = 0; i < n_sg - 1; i++) {
-			uint64_t ndp_off;
-			ndp_off = (i + 1) * sizeof(struct fit_sg_descriptor);
-
-			sg_list[i].next_desc_ptr = dma_address + ndp_off;
-		}
-		sg_list[i].next_desc_ptr = 0LL;
-	}
-
-	return sg_list;
-}
-
 static int skd_cons_disk(struct skd_device *skdev)
 {
 	int rc = 0;
@@ -4550,50 +4459,92 @@ err_out:
 	return rc;
 }
 
-/*
- *****************************************************************************
- * DESTRUCT (FREE)
- *****************************************************************************
- */
-
-static void skd_free_skcomp(struct skd_device *skdev);
-static void skd_free_skmsg(struct skd_device *skdev);
-static void skd_free_skreq(struct skd_device *skdev);
-static void skd_free_skspcl(struct skd_device *skdev);
-static void skd_free_sksb(struct skd_device *skdev);
-static void skd_free_sg_list(struct skd_device *skdev,
-			     struct fit_sg_descriptor *sg_list,
-			     u32 n_sg, dma_addr_t dma_addr);
-static void skd_free_disk(struct skd_device *skdev);
+#define SKD_N_DEV_TABLE         16u
+static u32 skd_next_devno;
 
-static void skd_destruct(struct skd_device *skdev)
+static struct skd_device *skd_construct(struct pci_dev *pdev)
 {
-	if (skdev == NULL)
-		return;
+	struct skd_device *skdev;
+	int blk_major = skd_major;
+	int rc;
 
+	skdev = kzalloc(sizeof(*skdev), GFP_KERNEL);
 
-	pr_debug("%s:%s:%d disk\n", skdev->name, __func__, __LINE__);
-	skd_free_disk(skdev);
+	if (!skdev) {
+		pr_err(PFX "(%s): memory alloc failure\n",
+		       pci_name(pdev));
+		return NULL;
+	}
 
-	pr_debug("%s:%s:%d sksb\n", skdev->name, __func__, __LINE__);
-	skd_free_sksb(skdev);
+	skdev->state = SKD_DRVR_STATE_LOAD;
+	skdev->pdev = pdev;
+	skdev->devno = skd_next_devno++;
+	skdev->major = blk_major;
+	skdev->irq_type = skd_isr_type;
+	sprintf(skdev->name, DRV_NAME "%d", skdev->devno);
+	skdev->dev_max_queue_depth = 0;
 
-	pr_debug("%s:%s:%d skspcl\n", skdev->name, __func__, __LINE__);
-	skd_free_skspcl(skdev);
+	skdev->num_req_context = skd_max_queue_depth;
+	skdev->num_fitmsg_context = skd_max_queue_depth;
+	skdev->n_special = skd_max_pass_thru;
+	skdev->cur_max_queue_depth = 1;
+	skdev->queue_low_water_mark = 1;
+	skdev->proto_ver = 99;
+	skdev->sgs_per_request = skd_sgs_per_request;
+	skdev->dbg_level = skd_dbg_level;
 
-	pr_debug("%s:%s:%d skreq\n", skdev->name, __func__, __LINE__);
-	skd_free_skreq(skdev);
+	atomic_set(&skdev->device_count, 0);
 
-	pr_debug("%s:%s:%d skmsg\n", skdev->name, __func__, __LINE__);
-	skd_free_skmsg(skdev);
+	spin_lock_init(&skdev->lock);
+
+	INIT_WORK(&skdev->completion_worker, skd_completion_worker);
 
 	pr_debug("%s:%s:%d skcomp\n", skdev->name, __func__, __LINE__);
-	skd_free_skcomp(skdev);
+	rc = skd_cons_skcomp(skdev);
+	if (rc < 0)
+		goto err_out;
 
-	pr_debug("%s:%s:%d skdev\n", skdev->name, __func__, __LINE__);
-	kfree(skdev);
+	pr_debug("%s:%s:%d skmsg\n", skdev->name, __func__, __LINE__);
+	rc = skd_cons_skmsg(skdev);
+	if (rc < 0)
+		goto err_out;
+
+	pr_debug("%s:%s:%d skreq\n", skdev->name, __func__, __LINE__);
+	rc = skd_cons_skreq(skdev);
+	if (rc < 0)
+		goto err_out;
+
+	pr_debug("%s:%s:%d skspcl\n", skdev->name, __func__, __LINE__);
+	rc = skd_cons_skspcl(skdev);
+	if (rc < 0)
+		goto err_out;
+
+	pr_debug("%s:%s:%d sksb\n", skdev->name, __func__, __LINE__);
+	rc = skd_cons_sksb(skdev);
+	if (rc < 0)
+		goto err_out;
+
+	pr_debug("%s:%s:%d disk\n", skdev->name, __func__, __LINE__);
+	rc = skd_cons_disk(skdev);
+	if (rc < 0)
+		goto err_out;
+
+	pr_debug("%s:%s:%d VICTORY\n", skdev->name, __func__, __LINE__);
+	return skdev;
+
+err_out:
+	pr_debug("%s:%s:%d construct failed\n",
+		 skdev->name, __func__, __LINE__);
+	skd_destruct(skdev);
+	return NULL;
 }
 
+/*
+ *****************************************************************************
+ * DESTRUCT (FREE)
+ *****************************************************************************
+ */
+
 static void skd_free_skcomp(struct skd_device *skdev)
 {
 	if (skdev->skcomp_table != NULL) {
@@ -4636,6 +4587,19 @@ static void skd_free_skmsg(struct skd_device *skdev)
 	skdev->skmsg_table = NULL;
 }
 
+static void skd_free_sg_list(struct skd_device *skdev,
+			     struct fit_sg_descriptor *sg_list,
+			     u32 n_sg, dma_addr_t dma_addr)
+{
+	if (sg_list != NULL) {
+		u32 nbytes;
+
+		nbytes = sizeof(*sg_list) * n_sg;
+
+		pci_free_consistent(skdev->pdev, nbytes, sg_list, dma_addr);
+	}
+}
+
 static void skd_free_skreq(struct skd_device *skdev)
 {
 	u32 i;
@@ -4732,19 +4696,6 @@ static void skd_free_sksb(struct skd_device *skdev)
 	skspcl->req.sksg_dma_address = 0;
 }
 
-static void skd_free_sg_list(struct skd_device *skdev,
-			     struct fit_sg_descriptor *sg_list,
-			     u32 n_sg, dma_addr_t dma_addr)
-{
-	if (sg_list != NULL) {
-		u32 nbytes;
-
-		nbytes = sizeof(*sg_list) * n_sg;
-
-		pci_free_consistent(skdev->pdev, nbytes, sg_list, dma_addr);
-	}
-}
-
 static void skd_free_disk(struct skd_device *skdev)
 {
 	struct gendisk *disk = skdev->disk;
@@ -4761,7 +4712,33 @@ static void skd_free_disk(struct skd_device *skdev)
 	skdev->disk = NULL;
 }
 
+static void skd_destruct(struct skd_device *skdev)
+{
+	if (skdev == NULL)
+		return;
+
+
+	pr_debug("%s:%s:%d disk\n", skdev->name, __func__, __LINE__);
+	skd_free_disk(skdev);
+
+	pr_debug("%s:%s:%d sksb\n", skdev->name, __func__, __LINE__);
+	skd_free_sksb(skdev);
+
+	pr_debug("%s:%s:%d skspcl\n", skdev->name, __func__, __LINE__);
+	skd_free_skspcl(skdev);
+
+	pr_debug("%s:%s:%d skreq\n", skdev->name, __func__, __LINE__);
+	skd_free_skreq(skdev);
+
+	pr_debug("%s:%s:%d skmsg\n", skdev->name, __func__, __LINE__);
+	skd_free_skmsg(skdev);
 
+	pr_debug("%s:%s:%d skcomp\n", skdev->name, __func__, __LINE__);
+	skd_free_skcomp(skdev);
+
+	pr_debug("%s:%s:%d skdev\n", skdev->name, __func__, __LINE__);
+	kfree(skdev);
+}
 
 /*
  *****************************************************************************
-- 
cgit 


From f1a3c6191369632ada5b709997b91a7f15045ff4 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Tue, 5 Nov 2013 12:37:09 +0100
Subject: skd: fix formatting in skd_s1120.h

Cc: Akhil Bhansali <abhansali@stec-inc.com>
Cc: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/skd_s1120.h | 230 ++++++++++++++++++++++------------------------
 1 file changed, 110 insertions(+), 120 deletions(-)

diff --git a/drivers/block/skd_s1120.h b/drivers/block/skd_s1120.h
index 426581e6d170..61c757ff0161 100644
--- a/drivers/block/skd_s1120.h
+++ b/drivers/block/skd_s1120.h
@@ -17,30 +17,29 @@
 /*
  * Q-channel, 64-bit r/w
  */
-#define FIT_Q_COMMAND               0x400u
-#define  FIT_QCMD_QID_MASK              (0x3 << 1)
-#define  FIT_QCMD_QID0                  (0x0 << 1)
-#define  FIT_QCMD_QID_NORMAL            FIT_QCMD_QID0
-#define  FIT_QCMD_QID1                  (0x1 << 1)
-#define  FIT_QCMD_QID2                  (0x2 << 1)
-#define  FIT_QCMD_QID3                  (0x3 << 1)
-#define  FIT_QCMD_FLUSH_QUEUE           (0ull)      /* add QID */
-#define  FIT_QCMD_MSGSIZE_MASK          (0x3 << 4)
-#define  FIT_QCMD_MSGSIZE_64            (0x0 << 4)
-#define  FIT_QCMD_MSGSIZE_128           (0x1 << 4)
-#define  FIT_QCMD_MSGSIZE_256           (0x2 << 4)
-#define  FIT_QCMD_MSGSIZE_512           (0x3 << 4)
-#define  FIT_QCMD_BASE_ADDRESS_MASK     (0xFFFFFFFFFFFFFFC0ull)
-
+#define FIT_Q_COMMAND			0x400u
+#define FIT_QCMD_QID_MASK		(0x3 << 1)
+#define  FIT_QCMD_QID0			(0x0 << 1)
+#define  FIT_QCMD_QID_NORMAL		FIT_QCMD_QID0
+#define  FIT_QCMD_QID1			(0x1 << 1)
+#define  FIT_QCMD_QID2			(0x2 << 1)
+#define  FIT_QCMD_QID3			(0x3 << 1)
+#define  FIT_QCMD_FLUSH_QUEUE		(0ull)	/* add QID */
+#define  FIT_QCMD_MSGSIZE_MASK		(0x3 << 4)
+#define  FIT_QCMD_MSGSIZE_64		(0x0 << 4)
+#define  FIT_QCMD_MSGSIZE_128		(0x1 << 4)
+#define  FIT_QCMD_MSGSIZE_256		(0x2 << 4)
+#define  FIT_QCMD_MSGSIZE_512		(0x3 << 4)
+#define  FIT_QCMD_BASE_ADDRESS_MASK	(0xFFFFFFFFFFFFFFC0ull)
 
 /*
  * Control, 32-bit r/w
  */
-#define FIT_CONTROL                 0x500u
-#define  FIT_CR_HARD_RESET              (1u << 0u)
-#define  FIT_CR_SOFT_RESET              (1u << 1u)
-#define	 FIT_CR_DIS_TIMESTAMPS		(1u << 6u)
-#define  FIT_CR_ENABLE_INTERRUPTS       (1u << 7u)
+#define FIT_CONTROL			0x500u
+#define  FIT_CR_HARD_RESET		(1u << 0u)
+#define  FIT_CR_SOFT_RESET		(1u << 1u)
+#define  FIT_CR_DIS_TIMESTAMPS		(1u << 6u)
+#define  FIT_CR_ENABLE_INTERRUPTS	(1u << 7u)
 
 /*
  * Status, 32-bit, r/o
@@ -63,88 +62,82 @@
 #define FIT_SR_DRIVE_BUSY_ERASE		0x0B
 #define FIT_SR_DRIVE_FW_BOOTING		0x0C
 #define FIT_SR_DRIVE_NEED_FW_DOWNLOAD	0xFE
-#define FIT_SR_DEVICE_MISSING           0xFF
+#define FIT_SR_DEVICE_MISSING		0xFF
 #define FIT_SR__RESERVED		0xFFFFFF00u
 
 /*
  * FIT_STATUS - Status register data definition
  */
-#define	FIT_SR_STATE_MASK		(0xFF << 0)
-#define	FIT_SR_SIGNATURE		(0xFF << 8)
-#define	FIT_SR_PIO_DMA			(1 << 16)
-
+#define FIT_SR_STATE_MASK		(0xFF << 0)
+#define FIT_SR_SIGNATURE		(0xFF << 8)
+#define FIT_SR_PIO_DMA			(1 << 16)
 
 /*
  * Interrupt status, 32-bit r/w1c (w1c ==> write 1 to clear)
  */
-#define FIT_INT_STATUS_HOST         0x520u
-#define  FIT_ISH_FW_STATE_CHANGE        (1u << 0u)
-#define  FIT_ISH_COMPLETION_POSTED      (1u << 1u)
-#define  FIT_ISH_MSG_FROM_DEV           (1u << 2u)
-#define  FIT_ISH_UNDEFINED_3            (1u << 3u)
-#define  FIT_ISH_UNDEFINED_4            (1u << 4u)
-#define  FIT_ISH_Q0_FULL                (1u << 5u)
-#define  FIT_ISH_Q1_FULL                (1u << 6u)
-#define  FIT_ISH_Q2_FULL                (1u << 7u)
-#define  FIT_ISH_Q3_FULL                (1u << 8u)
-#define  FIT_ISH_QCMD_FIFO_OVERRUN      (1u << 9u)
-#define  FIT_ISH_BAD_EXP_ROM_READ       (1u << 10u)
-
-
-#define FIT_INT_DEF_MASK	\
-		(FIT_ISH_FW_STATE_CHANGE | \
-		 FIT_ISH_COMPLETION_POSTED | \
-		 FIT_ISH_MSG_FROM_DEV | \
-		 FIT_ISH_Q0_FULL | \
-		 FIT_ISH_Q1_FULL | \
-		 FIT_ISH_Q2_FULL | \
-		 FIT_ISH_Q3_FULL | \
-		 FIT_ISH_QCMD_FIFO_OVERRUN | \
-		 FIT_ISH_BAD_EXP_ROM_READ)
-
-#define FIT_INT_QUEUE_FULL	\
-		(FIT_ISH_Q0_FULL | \
-		FIT_ISH_Q1_FULL | \
-		FIT_ISH_Q2_FULL | \
-		FIT_ISH_Q3_FULL)
-
-
-#define MSI_MSG_NWL_ERROR_0             0x00000000
-#define MSI_MSG_NWL_ERROR_1             0x00000001
-#define MSI_MSG_NWL_ERROR_2             0x00000002
-#define MSI_MSG_NWL_ERROR_3             0x00000003
-#define MSI_MSG_STATE_CHANGE            0x00000004
-#define MSI_MSG_COMPLETION_POSTED       0x00000005
-#define MSI_MSG_MSG_FROM_DEV            0x00000006
-#define MSI_MSG_RESERVED_0              0x00000007
-#define MSI_MSG_RESERVED_1              0x00000008
-#define MSI_MSG_QUEUE_0_FULL            0x00000009
-#define MSI_MSG_QUEUE_1_FULL            0x0000000A
-#define MSI_MSG_QUEUE_2_FULL            0x0000000B
-#define MSI_MSG_QUEUE_3_FULL            0x0000000C
-
-
-
-#define FIT_INT_RESERVED_MASK	\
-		(FIT_ISH_UNDEFINED_3 | \
-		FIT_ISH_UNDEFINED_4)
+#define FIT_INT_STATUS_HOST		0x520u
+#define  FIT_ISH_FW_STATE_CHANGE	(1u << 0u)
+#define  FIT_ISH_COMPLETION_POSTED	(1u << 1u)
+#define  FIT_ISH_MSG_FROM_DEV		(1u << 2u)
+#define  FIT_ISH_UNDEFINED_3		(1u << 3u)
+#define  FIT_ISH_UNDEFINED_4		(1u << 4u)
+#define  FIT_ISH_Q0_FULL		(1u << 5u)
+#define  FIT_ISH_Q1_FULL		(1u << 6u)
+#define  FIT_ISH_Q2_FULL		(1u << 7u)
+#define  FIT_ISH_Q3_FULL		(1u << 8u)
+#define  FIT_ISH_QCMD_FIFO_OVERRUN	(1u << 9u)
+#define  FIT_ISH_BAD_EXP_ROM_READ	(1u << 10u)
+
+#define FIT_INT_DEF_MASK \
+	(FIT_ISH_FW_STATE_CHANGE | \
+	 FIT_ISH_COMPLETION_POSTED | \
+	 FIT_ISH_MSG_FROM_DEV | \
+	 FIT_ISH_Q0_FULL | \
+	 FIT_ISH_Q1_FULL | \
+	 FIT_ISH_Q2_FULL | \
+	 FIT_ISH_Q3_FULL | \
+	 FIT_ISH_QCMD_FIFO_OVERRUN | \
+	 FIT_ISH_BAD_EXP_ROM_READ)
+
+#define FIT_INT_QUEUE_FULL \
+	(FIT_ISH_Q0_FULL | \
+	 FIT_ISH_Q1_FULL | \
+	 FIT_ISH_Q2_FULL | \
+	 FIT_ISH_Q3_FULL)
+
+#define MSI_MSG_NWL_ERROR_0		0x00000000
+#define MSI_MSG_NWL_ERROR_1		0x00000001
+#define MSI_MSG_NWL_ERROR_2		0x00000002
+#define MSI_MSG_NWL_ERROR_3		0x00000003
+#define MSI_MSG_STATE_CHANGE		0x00000004
+#define MSI_MSG_COMPLETION_POSTED	0x00000005
+#define MSI_MSG_MSG_FROM_DEV		0x00000006
+#define MSI_MSG_RESERVED_0		0x00000007
+#define MSI_MSG_RESERVED_1		0x00000008
+#define MSI_MSG_QUEUE_0_FULL		0x00000009
+#define MSI_MSG_QUEUE_1_FULL		0x0000000A
+#define MSI_MSG_QUEUE_2_FULL		0x0000000B
+#define MSI_MSG_QUEUE_3_FULL		0x0000000C
+
+#define FIT_INT_RESERVED_MASK \
+	(FIT_ISH_UNDEFINED_3 | \
+	 FIT_ISH_UNDEFINED_4)
+
 /*
  * Interrupt mask, 32-bit r/w
  * Bit definitions are the same as FIT_INT_STATUS_HOST
  */
-#define FIT_INT_MASK_HOST           0x528u
-
+#define FIT_INT_MASK_HOST		0x528u
 
 /*
  * Message to device, 32-bit r/w
  */
-#define FIT_MSG_TO_DEVICE           0x540u
+#define FIT_MSG_TO_DEVICE		0x540u
 
 /*
  * Message from device, 32-bit, r/o
  */
-#define FIT_MSG_FROM_DEVICE         0x548u
-
+#define FIT_MSG_FROM_DEVICE		0x548u
 
 /*
  * 32-bit messages to/from device, composition/extraction macros
@@ -153,52 +146,50 @@
 	((((TYPE)  & 0xFFu) << 24u) | \
 	(((PARAM) & 0xFFu) << 16u) | \
 	(((DATA)  & 0xFFFFu) << 0u))
-#define FIT_MXD_TYPE(MXD)               (((MXD) >> 24u) & 0xFFu)
-#define FIT_MXD_PARAM(MXD)              (((MXD) >> 16u) & 0xFFu)
-#define FIT_MXD_DATA(MXD)               (((MXD) >> 0u) & 0xFFFFu)
-
+#define FIT_MXD_TYPE(MXD)		(((MXD) >> 24u) & 0xFFu)
+#define FIT_MXD_PARAM(MXD)		(((MXD) >> 16u) & 0xFFu)
+#define FIT_MXD_DATA(MXD)		(((MXD) >> 0u) & 0xFFFFu)
 
 /*
  * Types of messages to/from device
  */
-#define FIT_MTD_FITFW_INIT              0x01u
-#define FIT_MTD_GET_CMDQ_DEPTH          0x02u
-#define FIT_MTD_SET_COMPQ_DEPTH         0x03u
-#define FIT_MTD_SET_COMPQ_ADDR          0x04u
-#define FIT_MTD_ARM_QUEUE               0x05u
-#define FIT_MTD_CMD_LOG_HOST_ID         0x07u
-#define FIT_MTD_CMD_LOG_TIME_STAMP_LO   0x08u
-#define FIT_MTD_CMD_LOG_TIME_STAMP_HI   0x09u
-#define FIT_MFD_SMART_EXCEEDED          0x10u
-#define FIT_MFD_POWER_DOWN		        0x11u
-#define FIT_MFD_OFFLINE			        0x12u
-#define FIT_MFD_ONLINE			        0x13u
-#define FIT_MFD_FW_RESTARTING		    0x14u
-#define FIT_MFD_PM_ACTIVE		        0x15u
-#define FIT_MFD_PM_STANDBY		        0x16u
-#define FIT_MFD_PM_SLEEP		        0x17u
-#define FIT_MFD_CMD_PROGRESS		    0x18u
-
-#define FIT_MTD_DEBUG                   0xFEu
-#define FIT_MFD_DEBUG                   0xFFu
+#define FIT_MTD_FITFW_INIT		0x01u
+#define FIT_MTD_GET_CMDQ_DEPTH		0x02u
+#define FIT_MTD_SET_COMPQ_DEPTH		0x03u
+#define FIT_MTD_SET_COMPQ_ADDR		0x04u
+#define FIT_MTD_ARM_QUEUE		0x05u
+#define FIT_MTD_CMD_LOG_HOST_ID		0x07u
+#define FIT_MTD_CMD_LOG_TIME_STAMP_LO	0x08u
+#define FIT_MTD_CMD_LOG_TIME_STAMP_HI	0x09u
+#define FIT_MFD_SMART_EXCEEDED		0x10u
+#define FIT_MFD_POWER_DOWN		0x11u
+#define FIT_MFD_OFFLINE			0x12u
+#define FIT_MFD_ONLINE			0x13u
+#define FIT_MFD_FW_RESTARTING		0x14u
+#define FIT_MFD_PM_ACTIVE		0x15u
+#define FIT_MFD_PM_STANDBY		0x16u
+#define FIT_MFD_PM_SLEEP		0x17u
+#define FIT_MFD_CMD_PROGRESS		0x18u
+
+#define FIT_MTD_DEBUG			0xFEu
+#define FIT_MFD_DEBUG			0xFFu
 
 #define FIT_MFD_MASK			(0xFFu)
 #define FIT_MFD_DATA_MASK		(0xFFu)
 #define FIT_MFD_MSG(x)			(((x) >> 24) & FIT_MFD_MASK)
 #define FIT_MFD_DATA(x)			((x) & FIT_MFD_MASK)
 
-
 /*
  * Extra arg to FIT_MSG_TO_DEVICE, 64-bit r/w
  * Used to set completion queue address (FIT_MTD_SET_COMPQ_ADDR)
  * (was Response buffer in docs)
  */
-#define FIT_MSG_TO_DEVICE_ARG       0x580u
+#define FIT_MSG_TO_DEVICE_ARG		0x580u
 
 /*
  * Hardware (ASIC) version, 32-bit r/o
  */
-#define FIT_HW_VERSION              0x588u
+#define FIT_HW_VERSION			0x588u
 
 /*
  * Scatter/gather list descriptor.
@@ -213,8 +204,8 @@ struct fit_sg_descriptor {
 	uint64_t next_desc_ptr;
 };
 
-#define FIT_SGD_CONTROL_NOT_LAST    0x000u
-#define FIT_SGD_CONTROL_LAST        0x40Eu
+#define FIT_SGD_CONTROL_NOT_LAST	0x000u
+#define FIT_SGD_CONTROL_LAST		0x40Eu
 
 /*
  * Header at the beginning of a FIT message. The header
@@ -228,9 +219,9 @@ struct fit_msg_hdr {
 	uint8_t _reserved[62];
 };
 
-#define FIT_PROTOCOL_ID_FIT     1
-#define FIT_PROTOCOL_ID_SSDI    2
-#define FIT_PROTOCOL_ID_SOFIT   3
+#define FIT_PROTOCOL_ID_FIT	1
+#define FIT_PROTOCOL_ID_SSDI	2
+#define FIT_PROTOCOL_ID_SOFIT	3
 
 
 #define FIT_PROTOCOL_MINOR_VER(mtd_val) ((mtd_val >> 16) & 0xF)
@@ -251,7 +242,7 @@ struct fit_msg_hdr {
  * Command_context is opaque and taken verbatim from the SSDI command.
  * All other fields are big endian.
  */
-#define FIT_PROTOCOL_VERSION_0          0
+#define FIT_PROTOCOL_VERSION_0		0
 
 /*
  *  Protocol major version 1 completion entry.
@@ -264,8 +255,8 @@ struct fit_completion_entry_v1 {
 	uint8_t		status;  /* SCSI status */
 	uint8_t		cycle;
 };
-#define FIT_PROTOCOL_VERSION_1          1
-#define FIT_PROTOCOL_VERSION_CURRENT    FIT_PROTOCOL_VERSION_1
+#define FIT_PROTOCOL_VERSION_1		1
+#define FIT_PROTOCOL_VERSION_CURRENT	FIT_PROTOCOL_VERSION_1
 
 struct fit_comp_error_info {
 	uint8_t		type:7; /* 00: Bits0-6 indicates the type of sense data. */
@@ -293,10 +284,9 @@ struct fit_comp_error_info {
 
 
 /* Task management constants */
-#define SOFT_TASK_SIMPLE            0x00
-#define SOFT_TASK_HEAD_OF_QUEUE     0x01
-#define SOFT_TASK_ORDERED           0x02
-
+#define SOFT_TASK_SIMPLE		0x00
+#define SOFT_TASK_HEAD_OF_QUEUE		0x01
+#define SOFT_TASK_ORDERED		0x02
 
 /* Version zero has the last 32 bits reserved,
  * Version one has the last 32 bits sg_list_len_bytes;
-- 
cgit 


From bfe11d6de1c416cea4f3f0f35f864162063ce3fa Mon Sep 17 00:00:00 2001
From: Roger Pau Monne <roger.pau@citrix.com>
Date: Tue, 29 Oct 2013 18:31:14 +0100
Subject: xen-blkfront: restore the non-persistent data path
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

When persistent grants were added they were always used, even if the
backend doesn't have this feature (there's no harm in always using the
same set of pages). This restores the old data path when the backend
doesn't have persistent grants, removing the burden of doing a memcpy
when it is not actually needed.

Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reported-by: Felipe Franciosi <felipe.franciosi@citrix.com>
Cc: Felipe Franciosi <felipe.franciosi@citrix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
[v2: Fix up whitespace issues]
---
 drivers/block/xen-blkfront.c | 125 ++++++++++++++++++++++++++++++++++---------
 1 file changed, 100 insertions(+), 25 deletions(-)

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 5b8a15483a4c..432db1b59b00 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -121,7 +121,8 @@ struct blkfront_info
 	struct work_struct work;
 	struct gnttab_free_callback callback;
 	struct blk_shadow shadow[BLK_RING_SIZE];
-	struct list_head persistent_gnts;
+	struct list_head grants;
+	struct list_head indirect_pages;
 	unsigned int persistent_gnts_c;
 	unsigned long shadow_free;
 	unsigned int feature_flush;
@@ -200,15 +201,17 @@ static int fill_grant_buffer(struct blkfront_info *info, int num)
 		if (!gnt_list_entry)
 			goto out_of_memory;
 
-		granted_page = alloc_page(GFP_NOIO);
-		if (!granted_page) {
-			kfree(gnt_list_entry);
-			goto out_of_memory;
+		if (info->feature_persistent) {
+			granted_page = alloc_page(GFP_NOIO);
+			if (!granted_page) {
+				kfree(gnt_list_entry);
+				goto out_of_memory;
+			}
+			gnt_list_entry->pfn = page_to_pfn(granted_page);
 		}
 
-		gnt_list_entry->pfn = page_to_pfn(granted_page);
 		gnt_list_entry->gref = GRANT_INVALID_REF;
-		list_add(&gnt_list_entry->node, &info->persistent_gnts);
+		list_add(&gnt_list_entry->node, &info->grants);
 		i++;
 	}
 
@@ -216,9 +219,10 @@ static int fill_grant_buffer(struct blkfront_info *info, int num)
 
 out_of_memory:
 	list_for_each_entry_safe(gnt_list_entry, n,
-	                         &info->persistent_gnts, node) {
+	                         &info->grants, node) {
 		list_del(&gnt_list_entry->node);
-		__free_page(pfn_to_page(gnt_list_entry->pfn));
+		if (info->feature_persistent)
+			__free_page(pfn_to_page(gnt_list_entry->pfn));
 		kfree(gnt_list_entry);
 		i--;
 	}
@@ -227,13 +231,14 @@ out_of_memory:
 }
 
 static struct grant *get_grant(grant_ref_t *gref_head,
+                               unsigned long pfn,
                                struct blkfront_info *info)
 {
 	struct grant *gnt_list_entry;
 	unsigned long buffer_mfn;
 
-	BUG_ON(list_empty(&info->persistent_gnts));
-	gnt_list_entry = list_first_entry(&info->persistent_gnts, struct grant,
+	BUG_ON(list_empty(&info->grants));
+	gnt_list_entry = list_first_entry(&info->grants, struct grant,
 	                                  node);
 	list_del(&gnt_list_entry->node);
 
@@ -245,6 +250,10 @@ static struct grant *get_grant(grant_ref_t *gref_head,
 	/* Assign a gref to this page */
 	gnt_list_entry->gref = gnttab_claim_grant_reference(gref_head);
 	BUG_ON(gnt_list_entry->gref == -ENOSPC);
+	if (!info->feature_persistent) {
+		BUG_ON(!pfn);
+		gnt_list_entry->pfn = pfn;
+	}
 	buffer_mfn = pfn_to_mfn(gnt_list_entry->pfn);
 	gnttab_grant_foreign_access_ref(gnt_list_entry->gref,
 	                                info->xbdev->otherend_id,
@@ -480,22 +489,34 @@ static int blkif_queue_request(struct request *req)
 
 			if ((ring_req->operation == BLKIF_OP_INDIRECT) &&
 			    (i % SEGS_PER_INDIRECT_FRAME == 0)) {
+				unsigned long pfn;
+
 				if (segments)
 					kunmap_atomic(segments);
 
 				n = i / SEGS_PER_INDIRECT_FRAME;
-				gnt_list_entry = get_grant(&gref_head, info);
+				if (!info->feature_persistent) {
+					struct page *indirect_page;
+
+					/* Fetch a pre-allocated page to use for indirect grefs */
+					BUG_ON(list_empty(&info->indirect_pages));
+					indirect_page = list_first_entry(&info->indirect_pages,
+					                                 struct page, lru);
+					list_del(&indirect_page->lru);
+					pfn = page_to_pfn(indirect_page);
+				}
+				gnt_list_entry = get_grant(&gref_head, pfn, info);
 				info->shadow[id].indirect_grants[n] = gnt_list_entry;
 				segments = kmap_atomic(pfn_to_page(gnt_list_entry->pfn));
 				ring_req->u.indirect.indirect_grefs[n] = gnt_list_entry->gref;
 			}
 
-			gnt_list_entry = get_grant(&gref_head, info);
+			gnt_list_entry = get_grant(&gref_head, page_to_pfn(sg_page(sg)), info);
 			ref = gnt_list_entry->gref;
 
 			info->shadow[id].grants_used[i] = gnt_list_entry;
 
-			if (rq_data_dir(req)) {
+			if (rq_data_dir(req) && info->feature_persistent) {
 				char *bvec_data;
 				void *shared_data;
 
@@ -907,21 +928,36 @@ static void blkif_free(struct blkfront_info *info, int suspend)
 		blk_stop_queue(info->rq);
 
 	/* Remove all persistent grants */
-	if (!list_empty(&info->persistent_gnts)) {
+	if (!list_empty(&info->grants)) {
 		list_for_each_entry_safe(persistent_gnt, n,
-		                         &info->persistent_gnts, node) {
+		                         &info->grants, node) {
 			list_del(&persistent_gnt->node);
 			if (persistent_gnt->gref != GRANT_INVALID_REF) {
 				gnttab_end_foreign_access(persistent_gnt->gref,
 				                          0, 0UL);
 				info->persistent_gnts_c--;
 			}
-			__free_page(pfn_to_page(persistent_gnt->pfn));
+			if (info->feature_persistent)
+				__free_page(pfn_to_page(persistent_gnt->pfn));
 			kfree(persistent_gnt);
 		}
 	}
 	BUG_ON(info->persistent_gnts_c != 0);
 
+	/*
+	 * Remove indirect pages, this only happens when using indirect
+	 * descriptors but not persistent grants
+	 */
+	if (!list_empty(&info->indirect_pages)) {
+		struct page *indirect_page, *n;
+
+		BUG_ON(info->feature_persistent);
+		list_for_each_entry_safe(indirect_page, n, &info->indirect_pages, lru) {
+			list_del(&indirect_page->lru);
+			__free_page(indirect_page);
+		}
+	}
+
 	for (i = 0; i < BLK_RING_SIZE; i++) {
 		/*
 		 * Clear persistent grants present in requests already
@@ -936,7 +972,8 @@ static void blkif_free(struct blkfront_info *info, int suspend)
 		for (j = 0; j < segs; j++) {
 			persistent_gnt = info->shadow[i].grants_used[j];
 			gnttab_end_foreign_access(persistent_gnt->gref, 0, 0UL);
-			__free_page(pfn_to_page(persistent_gnt->pfn));
+			if (info->feature_persistent)
+				__free_page(pfn_to_page(persistent_gnt->pfn));
 			kfree(persistent_gnt);
 		}
 
@@ -995,7 +1032,7 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *info,
 	nseg = s->req.operation == BLKIF_OP_INDIRECT ?
 		s->req.u.indirect.nr_segments : s->req.u.rw.nr_segments;
 
-	if (bret->operation == BLKIF_OP_READ) {
+	if (bret->operation == BLKIF_OP_READ && info->feature_persistent) {
 		/*
 		 * Copy the data received from the backend into the bvec.
 		 * Since bv_offset can be different than 0, and bv_len different
@@ -1023,7 +1060,10 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *info,
 			 * we add it at the head of the list, so it will be
 			 * reused first.
 			 */
-			list_add(&s->grants_used[i]->node, &info->persistent_gnts);
+			if (!info->feature_persistent)
+				pr_alert_ratelimited("backed has not unmapped grant: %u\n",
+						     s->grants_used[i]->gref);
+			list_add(&s->grants_used[i]->node, &info->grants);
 			info->persistent_gnts_c++;
 		} else {
 			/*
@@ -1034,19 +1074,29 @@ static void blkif_completion(struct blk_shadow *s, struct blkfront_info *info,
 			 */
 			gnttab_end_foreign_access(s->grants_used[i]->gref, 0, 0UL);
 			s->grants_used[i]->gref = GRANT_INVALID_REF;
-			list_add_tail(&s->grants_used[i]->node, &info->persistent_gnts);
+			list_add_tail(&s->grants_used[i]->node, &info->grants);
 		}
 	}
 	if (s->req.operation == BLKIF_OP_INDIRECT) {
 		for (i = 0; i < INDIRECT_GREFS(nseg); i++) {
 			if (gnttab_query_foreign_access(s->indirect_grants[i]->gref)) {
-				list_add(&s->indirect_grants[i]->node, &info->persistent_gnts);
+				if (!info->feature_persistent)
+					pr_alert_ratelimited("backed has not unmapped grant: %u\n",
+							     s->indirect_grants[i]->gref);
+				list_add(&s->indirect_grants[i]->node, &info->grants);
 				info->persistent_gnts_c++;
 			} else {
+				struct page *indirect_page;
+
 				gnttab_end_foreign_access(s->indirect_grants[i]->gref, 0, 0UL);
+				/*
+				 * Add the used indirect page back to the list of
+				 * available pages for indirect grefs.
+				 */
+				indirect_page = pfn_to_page(s->indirect_grants[i]->pfn);
+				list_add(&indirect_page->lru, &info->indirect_pages);
 				s->indirect_grants[i]->gref = GRANT_INVALID_REF;
-				list_add_tail(&s->indirect_grants[i]->node,
-				              &info->persistent_gnts);
+				list_add_tail(&s->indirect_grants[i]->node, &info->grants);
 			}
 		}
 	}
@@ -1341,7 +1391,8 @@ static int blkfront_probe(struct xenbus_device *dev,
 	spin_lock_init(&info->io_lock);
 	info->xbdev = dev;
 	info->vdevice = vdevice;
-	INIT_LIST_HEAD(&info->persistent_gnts);
+	INIT_LIST_HEAD(&info->grants);
+	INIT_LIST_HEAD(&info->indirect_pages);
 	info->persistent_gnts_c = 0;
 	info->connected = BLKIF_STATE_DISCONNECTED;
 	INIT_WORK(&info->work, blkif_restart_queue);
@@ -1637,6 +1688,23 @@ static int blkfront_setup_indirect(struct blkfront_info *info)
 	if (err)
 		goto out_of_memory;
 
+	if (!info->feature_persistent && info->max_indirect_segments) {
+		/*
+		 * We are using indirect descriptors but not persistent
+		 * grants, we need to allocate a set of pages that can be
+		 * used for mapping indirect grefs
+		 */
+		int num = INDIRECT_GREFS(segs) * BLK_RING_SIZE;
+
+		BUG_ON(!list_empty(&info->indirect_pages));
+		for (i = 0; i < num; i++) {
+			struct page *indirect_page = alloc_page(GFP_NOIO);
+			if (!indirect_page)
+				goto out_of_memory;
+			list_add(&indirect_page->lru, &info->indirect_pages);
+		}
+	}
+
 	for (i = 0; i < BLK_RING_SIZE; i++) {
 		info->shadow[i].grants_used = kzalloc(
 			sizeof(info->shadow[i].grants_used[0]) * segs,
@@ -1667,6 +1735,13 @@ out_of_memory:
 		kfree(info->shadow[i].indirect_grants);
 		info->shadow[i].indirect_grants = NULL;
 	}
+	if (!list_empty(&info->indirect_pages)) {
+		struct page *indirect_page, *n;
+		list_for_each_entry_safe(indirect_page, n, &info->indirect_pages, lru) {
+			list_del(&indirect_page->lru);
+			__free_page(indirect_page);
+		}
+	}
 	return -ENOMEM;
 }
 
-- 
cgit 


From 49c2856af779bb1a36fa598804e4c0b2251fae57 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 6 Nov 2013 09:24:02 +0100
Subject: pktcdvd: debugfs functions return NULL on error

My static checker complains correctly that this is potential NULL
dereference because debugfs functions return NULL on error.  They return
an ERR_PTR if they are configured out.

We don't need to check for ERR_PTR because if debugfs is stubbed out the
dummy functions won't complain about that.  We don't need to check the
values before calling debugfs_remove() because that accepts ERR_PTRs and
NULL pointers.

We don't need to set pkt->dfs_f_info to NULL in pkt_debugfs_dev_new()
because it was initialized with kzalloc() so I have removed that.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/block/pktcdvd.c | 22 ++++------------------
 1 file changed, 4 insertions(+), 18 deletions(-)

diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c
index 56188475cfd3..ff8668c5efb1 100644
--- a/drivers/block/pktcdvd.c
+++ b/drivers/block/pktcdvd.c
@@ -473,45 +473,31 @@ static void pkt_debugfs_dev_new(struct pktcdvd_device *pd)
 {
 	if (!pkt_debugfs_root)
 		return;
-	pd->dfs_f_info = NULL;
 	pd->dfs_d_root = debugfs_create_dir(pd->name, pkt_debugfs_root);
-	if (IS_ERR(pd->dfs_d_root)) {
-		pd->dfs_d_root = NULL;
+	if (!pd->dfs_d_root)
 		return;
-	}
+
 	pd->dfs_f_info = debugfs_create_file("info", S_IRUGO,
 				pd->dfs_d_root, pd, &debug_fops);
-	if (IS_ERR(pd->dfs_f_info)) {
-		pd->dfs_f_info = NULL;
-		return;
-	}
 }
 
 static void pkt_debugfs_dev_remove(struct pktcdvd_device *pd)
 {
 	if (!pkt_debugfs_root)
 		return;
-	if (pd->dfs_f_info)
-		debugfs_remove(pd->dfs_f_info);
+	debugfs_remove(pd->dfs_f_info);
+	debugfs_remove(pd->dfs_d_root);
 	pd->dfs_f_info = NULL;
-	if (pd->dfs_d_root)
-		debugfs_remove(pd->dfs_d_root);
 	pd->dfs_d_root = NULL;
 }
 
 static void pkt_debugfs_init(void)
 {
 	pkt_debugfs_root = debugfs_create_dir(DRIVER_NAME, NULL);
-	if (IS_ERR(pkt_debugfs_root)) {
-		pkt_debugfs_root = NULL;
-		return;
-	}
 }
 
 static void pkt_debugfs_cleanup(void)
 {
-	if (!pkt_debugfs_root)
-		return;
 	debugfs_remove(pkt_debugfs_root);
 	pkt_debugfs_root = NULL;
 }
-- 
cgit 


From f7cb20f03dc6dff1b19942cf3dda6d154c86f29b Mon Sep 17 00:00:00 2001
From: Ben Harris <bjh21@cam.ac.uk>
Date: Fri, 18 Oct 2013 21:23:35 +0100
Subject: floppy: Correct documentation of driver options when used as a
 module.

The options have to be passed space-separated and prefixed by "floppy=",
rather than separately and unprefixed.

This fixes <http://bugs.debian.org/726655>.

Signed-off-by: Ben Harris <bjh21@cam.ac.uk>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 Documentation/blockdev/floppy.txt | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Documentation/blockdev/floppy.txt b/Documentation/blockdev/floppy.txt
index 470fe4b5e379..e2240f5ab64d 100644
--- a/Documentation/blockdev/floppy.txt
+++ b/Documentation/blockdev/floppy.txt
@@ -39,15 +39,15 @@ Module configuration options
 ============================
 
  If you use the floppy driver as a module, use the following syntax:
-modprobe floppy <options>
+modprobe floppy floppy="<options>"
 
 Example:
- modprobe floppy omnibook messages
+ modprobe floppy floppy="omnibook messages"
 
  If you need certain options enabled every time you load the floppy driver,
 you can put:
 
- options floppy omnibook messages
+ options floppy floppy="omnibook messages"
 
 in a configuration file in /etc/modprobe.d/.
 
-- 
cgit 


From f5ae18ece391c3bbf03bb1edc5fdcf23dc8b7e54 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Thu, 7 Nov 2013 11:54:27 -0600
Subject: dt: disable self-tests for !OF_IRQ

Fix OF selftest compile on sparc which does not enable OF_IRQ.

drivers/of/selftest.c:177: undefined reference to `of_irq_parse_one'
drivers/of/selftest.c:197: undefined reference to `of_irq_parse_one'
drivers/of/selftest.c:248: undefined reference to `of_irq_parse_one'

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
---
 drivers/of/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index 9d2009a9004d..9b28f8b0c3c2 100644
--- a/drivers/of/Kconfig
+++ b/drivers/of/Kconfig
@@ -17,6 +17,7 @@ config PROC_DEVICETREE
 
 config OF_SELFTEST
 	bool "Device Tree Runtime self tests"
+	depends on OF_IRQ
 	help
 	  This option builds in test cases for the device tree infrastructure
 	  that are executed one at boot time, and the results dumped to the
-- 
cgit 


From a8d3f362f52b65207cacbfb4c50f75e9d4751ef6 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Thu, 7 Nov 2013 12:13:27 -0600
Subject: dt/irq: add empty of_irq_count for !OF_IRQ

Add an empty version of of_irq_count for !OF_IRQ. This fixes build error
on sparc in linux-next:

drivers/gpio/gpio-bcm-kona.c:542: undefined reference to `of_irq_count'

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 include/linux/of_irq.h | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/include/linux/of_irq.h b/include/linux/of_irq.h
index c0d6dfe80895..3f23b4472c31 100644
--- a/include/linux/of_irq.h
+++ b/include/linux/of_irq.h
@@ -37,12 +37,20 @@ extern int of_irq_parse_one(struct device_node *device, int index,
 extern unsigned int irq_create_of_mapping(struct of_phandle_args *irq_data);
 extern int of_irq_to_resource(struct device_node *dev, int index,
 			      struct resource *r);
-extern int of_irq_count(struct device_node *dev);
 extern int of_irq_to_resource_table(struct device_node *dev,
 		struct resource *res, int nr_irqs);
 
 extern void of_irq_init(const struct of_device_id *matches);
 
+#ifdef CONFIG_OF_IRQ
+extern int of_irq_count(struct device_node *dev);
+#else
+static inline int of_irq_count(struct device_node *dev)
+{
+	return 0;
+}
+#endif
+
 #if defined(CONFIG_OF)
 /*
  * irq_of_parse_and_map() is used by all OF enabled platforms; but SPARC
-- 
cgit 


From cdc4ead09d3ee0ce48054b81ac31bc8179182dae Mon Sep 17 00:00:00 2001
From: Baruch Siach <baruch@tkos.co.il>
Date: Thu, 7 Nov 2013 17:16:06 +0200
Subject: netdev: smc91x: enable for xtensa

Tested in VLAB Works Xtensa simulation.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/smsc/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/smsc/Kconfig b/drivers/net/ethernet/smsc/Kconfig
index 068fc44d37e1..753630f5d3d3 100644
--- a/drivers/net/ethernet/smsc/Kconfig
+++ b/drivers/net/ethernet/smsc/Kconfig
@@ -6,7 +6,7 @@ config NET_VENDOR_SMSC
 	bool "SMC (SMSC)/Western Digital devices"
 	default y
 	depends on ARM || ISA || MAC || ARM64 || MIPS || M32R || SUPERH || \
-		BLACKFIN || MN10300 || COLDFIRE || PCI || PCMCIA
+		BLACKFIN || MN10300 || COLDFIRE || XTENSA || PCI || PCMCIA
 	---help---
 	  If you have a network (Ethernet) card belonging to this class, say Y
 	  and read the Ethernet-HOWTO, available from
@@ -39,7 +39,7 @@ config SMC91X
 	select CRC32
 	select MII
 	depends on (ARM || M32R || SUPERH || MIPS || BLACKFIN || \
-		    MN10300 || COLDFIRE || ARM64)
+		    MN10300 || COLDFIRE || ARM64 || XTENSA)
 	---help---
 	  This is a driver for SMC's 91x series of Ethernet chipsets,
 	  including the SMC91C94 and the SMC91C111. Say Y if you want it
-- 
cgit 


From 3797d3e8462efdaadb64164ca540626b55fe8336 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 7 Nov 2013 08:37:28 -0800
Subject: net: flow_dissector: small optimizations in IPv4 dissect

By moving code around, we avoid :

1) A reload of iph->ihl (bit field, so needs a mask)

2) A conditional test (replaced by a conditional mov on x86)
   Fast path loads iph->protocol anyway.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/flow_dissector.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index 0242035192f1..d6ef17322500 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -68,13 +68,13 @@ ip:
 		iph = skb_header_pointer(skb, nhoff, sizeof(_iph), &_iph);
 		if (!iph || iph->ihl < 5)
 			return false;
+		nhoff += iph->ihl * 4;
 
+		ip_proto = iph->protocol;
 		if (ip_is_fragment(iph))
 			ip_proto = 0;
-		else
-			ip_proto = iph->protocol;
+
 		iph_to_flow_copy_addrs(flow, iph);
-		nhoff += iph->ihl * 4;
 		break;
 	}
 	case __constant_htons(ETH_P_IPV6): {
-- 
cgit 


From 3fdfa5ff50aee5b524fb22b6e0e511b73752a257 Mon Sep 17 00:00:00 2001
From: Florent Fourcot <florent.fourcot@enst-bretagne.fr>
Date: Thu, 7 Nov 2013 17:53:12 +0100
Subject: ipv6: enable IPV6_FLOWLABEL_MGR for getsockopt

It is already possible to set/put/renew a label
with IPV6_FLOWLABEL_MGR and setsockopt. This patch
add the possibility to get information about this
label (current value, time before expiration, etc).

It helps application to take decision for a renew
or a release of the label.

v2:
 * Add spin_lock to prevent race condition
 * return -ENOENT if no result found
 * check if flr_action is GET

v3:
 * move the spin_lock to protect only the
   relevant code

Signed-off-by: Florent Fourcot <florent.fourcot@enst-bretagne.fr>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/ipv6.h       |  1 +
 net/ipv6/ip6_flowlabel.c | 26 ++++++++++++++++++++++++++
 net/ipv6/ipv6_sockglue.c | 28 ++++++++++++++++++++++++++++
 3 files changed, 55 insertions(+)

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index dd96638ab8ff..2a5f668cd683 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -250,6 +250,7 @@ struct ipv6_txoptions *fl6_merge_options(struct ipv6_txoptions *opt_space,
 					 struct ipv6_txoptions *fopt);
 void fl6_free_socklist(struct sock *sk);
 int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen);
+int ipv6_flowlabel_opt_get(struct sock *sk, struct in6_flowlabel_req *freq);
 int ip6_flowlabel_init(void);
 void ip6_flowlabel_cleanup(void);
 
diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index 819578e92499..4a06ed01d0c3 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -475,6 +475,32 @@ static inline void fl_link(struct ipv6_pinfo *np, struct ipv6_fl_socklist *sfl,
 	spin_unlock_bh(&ip6_sk_fl_lock);
 }
 
+int ipv6_flowlabel_opt_get(struct sock *sk, struct in6_flowlabel_req *freq)
+{
+	struct ipv6_pinfo *np = inet6_sk(sk);
+	struct ipv6_fl_socklist *sfl;
+
+	rcu_read_lock_bh();
+
+	for_each_sk_fl_rcu(np, sfl) {
+		if (sfl->fl->label == (np->flow_label & IPV6_FLOWLABEL_MASK)) {
+			spin_lock_bh(&ip6_fl_lock);
+			freq->flr_label = sfl->fl->label;
+			freq->flr_dst = sfl->fl->dst;
+			freq->flr_share = sfl->fl->share;
+			freq->flr_expires = (sfl->fl->expires - jiffies) / HZ;
+			freq->flr_linger = sfl->fl->linger / HZ;
+
+			spin_unlock_bh(&ip6_fl_lock);
+			rcu_read_unlock_bh();
+			return 0;
+		}
+	}
+	rcu_read_unlock_bh();
+
+	return -ENOENT;
+}
+
 int ipv6_flowlabel_opt(struct sock *sk, char __user *optval, int optlen)
 {
 	int uninitialized_var(err);
diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c
index 4919a8e6063e..1c6ce3119ff8 100644
--- a/net/ipv6/ipv6_sockglue.c
+++ b/net/ipv6/ipv6_sockglue.c
@@ -1212,6 +1212,34 @@ static int do_ipv6_getsockopt(struct sock *sk, int level, int optname,
 		val = np->sndflow;
 		break;
 
+	case IPV6_FLOWLABEL_MGR:
+	{
+		struct in6_flowlabel_req freq;
+
+		if (len < sizeof(freq))
+			return -EINVAL;
+
+		if (copy_from_user(&freq, optval, sizeof(freq)))
+			return -EFAULT;
+
+		if (freq.flr_action != IPV6_FL_A_GET)
+			return -EINVAL;
+
+		len = sizeof(freq);
+		memset(&freq, 0, sizeof(freq));
+
+		val = ipv6_flowlabel_opt_get(sk, &freq);
+		if (val < 0)
+			return val;
+
+		if (put_user(len, optlen))
+			return -EFAULT;
+		if (copy_to_user(optval, &freq, len))
+			return -EFAULT;
+
+		return 0;
+	}
+
 	case IPV6_ADDR_PREFERENCES:
 		val = 0;
 
-- 
cgit 


From 53b47106c0c2b1f42237d255ae272f0fcc3ec413 Mon Sep 17 00:00:00 2001
From: Florent Fourcot <florent.fourcot@enst-bretagne.fr>
Date: Thu, 7 Nov 2013 17:53:13 +0100
Subject: ipv6: increase maximum lifetime of flow labels

If the last RFC 6437 does not give any constraints
for lifetime of flow labels, the previous RFC 3697
spoke of a minimum of 120 seconds between
reattribution of a flow label.

The maximum linger is currently set to 60 seconds
and does not allow this configuration without
CAP_NET_ADMIN right.

This patch increase the maximum linger to 150
seconds, allowing more flexibility to standard
users.

Signed-off-by: Florent Fourcot <florent.fourcot@enst-bretagne.fr>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/ip6_flowlabel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index 4a06ed01d0c3..5f10b0d0bca5 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -41,7 +41,7 @@
 #define FL_MIN_LINGER	6	/* Minimal linger. It is set to 6sec specified
 				   in old IPv6 RFC. Well, it was reasonable value.
 				 */
-#define FL_MAX_LINGER	60	/* Maximal linger timeout */
+#define FL_MAX_LINGER	150	/* Maximal linger timeout */
 
 /* FL hash table */
 
-- 
cgit 


From 394055f6fabd077e74815865f01a73a31dd765d3 Mon Sep 17 00:00:00 2001
From: Florent Fourcot <florent.fourcot@enst-bretagne.fr>
Date: Thu, 7 Nov 2013 17:53:14 +0100
Subject: ipv6: protect flow label renew against GC

Take ip6_fl_lock before to read and update
a label.

v2: protect only the relevant code

Reported-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Florent Fourcot <florent.fourcot@enst-bretagne.fr>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/ip6_flowlabel.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index 5f10b0d0bca5..98fdcc6f51b1 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -345,6 +345,8 @@ static int fl6_renew(struct ip6_flowlabel *fl, unsigned long linger, unsigned lo
 	expires = check_linger(expires);
 	if (!expires)
 		return -EPERM;
+
+	spin_lock_bh(&ip6_fl_lock);
 	fl->lastuse = jiffies;
 	if (time_before(fl->linger, linger))
 		fl->linger = linger;
@@ -352,6 +354,8 @@ static int fl6_renew(struct ip6_flowlabel *fl, unsigned long linger, unsigned lo
 		expires = fl->linger;
 	if (time_before(fl->expires, fl->lastuse + expires))
 		fl->expires = fl->lastuse + expires;
+	spin_unlock_bh(&ip6_fl_lock);
+
 	return 0;
 }
 
-- 
cgit 


From 0a8fd09ca9d4564a1f906b530ea08415a61cff58 Mon Sep 17 00:00:00 2001
From: Alexey Neyman <stilor@att.net>
Date: Tue, 5 Nov 2013 19:40:36 -0800
Subject: mmc: sdhci: Avoid needless loop while handling SDIO interrupts in
 sdhci_irq

Ignore Card Interrupt bit in the interrupt status if we already
know that mmc_signal_sdio_irq() is going to be called at the end of
sdhci_irq(). This avoids a needless loop in sdhci_irq() repeatedly
reading interrupt status and doing nothing.

Signed-off-by: Alexey Neyman <stilor@att.net>
Acked-by: Dong Aisheng <b29396@freescale.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sdhci.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 6785fb1dc5c6..bd8a0982aec3 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -2501,6 +2501,14 @@ again:
 	result = IRQ_HANDLED;
 
 	intmask = sdhci_readl(host, SDHCI_INT_STATUS);
+
+	/*
+	 * If we know we'll call the driver to signal SDIO IRQ, disregard
+	 * further indications of Card Interrupt in the status to avoid a
+	 * needless loop.
+	 */
+	if (cardint)
+		intmask &= ~SDHCI_INT_CARD_INT;
 	if (intmask && --max_loops)
 		goto again;
 out:
-- 
cgit 


From 2d9f0bd1d4a66ab5019194c5e8ec5a55c77dd7e3 Mon Sep 17 00:00:00 2001
From: Yuvaraj Kumar C D <yuvaraj.cd@gmail.com>
Date: Tue, 22 Oct 2013 14:41:56 +0530
Subject: mmc: dw_mmc: exynos: Revert the sdr_timing assignment

e6c784eded7b3 ("mmc: dw_mmc: exynos: move the exynos private init") was
wrongly assigning ddr_timing value to sdr_timing. This patch fixes this
by reverting the sdr_timing assignment statement to the earlier location.

Signed-off-by: Yuvaraj Kumar C D <yuvaraj.cd@samsung.com>
Acked-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/dw_mmc-exynos.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
index d42e664e78bc..3423c5ed50c7 100644
--- a/drivers/mmc/host/dw_mmc-exynos.c
+++ b/drivers/mmc/host/dw_mmc-exynos.c
@@ -251,12 +251,13 @@ static int dw_mci_exynos_parse_dt(struct dw_mci *host)
 	if (ret)
 		return ret;
 
+	priv->sdr_timing = SDMMC_CLKSEL_TIMING(timing[0], timing[1], div);
+
 	ret = of_property_read_u32_array(np,
 			"samsung,dw-mshc-ddr-timing", timing, 2);
 	if (ret)
 		return ret;
 
-	priv->sdr_timing = SDMMC_CLKSEL_TIMING(timing[0], timing[1], div);
 	priv->ddr_timing = SDMMC_CLKSEL_TIMING(timing[0], timing[1], div);
 	host->priv = priv;
 	return 0;
-- 
cgit 


From 51129f31d2e7abcfb4cf35f703a42d1524c45dfa Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Tue, 1 Oct 2013 14:01:46 +0200
Subject: mmc: sh_mmcif: Convert to PM macros when defining dev_pm_ops

Use SET_SYSTEM_SLEEP_PM_OPS to simplify code.

Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sh_mmcif.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index 6bffebe6f57a..32bc4121c965 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -1538,7 +1538,7 @@ static int sh_mmcif_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int sh_mmcif_suspend(struct device *dev)
 {
 	struct sh_mmcif_host *host = dev_get_drvdata(dev);
@@ -1552,10 +1552,7 @@ static int sh_mmcif_resume(struct device *dev)
 {
 	return 0;
 }
-#else
-#define sh_mmcif_suspend	NULL
-#define sh_mmcif_resume		NULL
-#endif	/* CONFIG_PM */
+#endif
 
 static const struct of_device_id mmcif_of_match[] = {
 	{ .compatible = "renesas,sh-mmcif" },
@@ -1564,8 +1561,7 @@ static const struct of_device_id mmcif_of_match[] = {
 MODULE_DEVICE_TABLE(of, mmcif_of_match);
 
 static const struct dev_pm_ops sh_mmcif_dev_pm_ops = {
-	.suspend = sh_mmcif_suspend,
-	.resume = sh_mmcif_resume,
+	SET_SYSTEM_SLEEP_PM_OPS(sh_mmcif_suspend, sh_mmcif_resume)
 };
 
 static struct platform_driver sh_mmcif_driver = {
-- 
cgit 


From ac0a2e98927e4797ae716b7327c3a9c85ba5431c Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Tue, 1 Oct 2013 14:56:57 +0200
Subject: mmc: sh_mmcif: Convert to clk_prepare|unprepare

Previously only clk_enable|disable were being used. Adapt properly
to the clock API, by also using clk_prepare|unprepare.

Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/sh_mmcif.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c
index 32bc4121c965..d032b080ac4d 100644
--- a/drivers/mmc/host/sh_mmcif.c
+++ b/drivers/mmc/host/sh_mmcif.c
@@ -964,7 +964,7 @@ static void sh_mmcif_request(struct mmc_host *mmc, struct mmc_request *mrq)
 
 static int sh_mmcif_clk_update(struct sh_mmcif_host *host)
 {
-	int ret = clk_enable(host->hclk);
+	int ret = clk_prepare_enable(host->hclk);
 
 	if (!ret) {
 		host->clk = clk_get_rate(host->hclk);
@@ -1018,7 +1018,7 @@ static void sh_mmcif_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 		}
 		if (host->power) {
 			pm_runtime_put_sync(&host->pd->dev);
-			clk_disable(host->hclk);
+			clk_disable_unprepare(host->hclk);
 			host->power = false;
 			if (ios->power_mode == MMC_POWER_OFF)
 				sh_mmcif_set_power(host, ios);
@@ -1466,7 +1466,7 @@ static int sh_mmcif_probe(struct platform_device *pdev)
 
 	mutex_init(&host->thread_lock);
 
-	clk_disable(host->hclk);
+	clk_disable_unprepare(host->hclk);
 	ret = mmc_add_host(mmc);
 	if (ret < 0)
 		goto emmcaddh;
@@ -1487,7 +1487,7 @@ ereqirq1:
 ereqirq0:
 	pm_runtime_suspend(&pdev->dev);
 eresume:
-	clk_disable(host->hclk);
+	clk_disable_unprepare(host->hclk);
 eclkupdate:
 	clk_put(host->hclk);
 eclkget:
@@ -1505,7 +1505,7 @@ static int sh_mmcif_remove(struct platform_device *pdev)
 	int irq[2];
 
 	host->dying = true;
-	clk_enable(host->hclk);
+	clk_prepare_enable(host->hclk);
 	pm_runtime_get_sync(&pdev->dev);
 
 	dev_pm_qos_hide_latency_limit(&pdev->dev);
@@ -1530,7 +1530,7 @@ static int sh_mmcif_remove(struct platform_device *pdev)
 	if (irq[1] >= 0)
 		free_irq(irq[1], host);
 
-	clk_disable(host->hclk);
+	clk_disable_unprepare(host->hclk);
 	mmc_free_host(host->mmc);
 	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
-- 
cgit 


From ecd3a7dad982aeba6409ef6d933fd7e372a70127 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Mon, 28 Oct 2013 02:51:41 +0100
Subject: mmc: core: Silence compiler warning in __mmc_switch

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/core/mmc_ops.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c
index aae8d8b45549..e5b5eeb548d1 100644
--- a/drivers/mmc/core/mmc_ops.c
+++ b/drivers/mmc/core/mmc_ops.c
@@ -414,7 +414,7 @@ int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value,
 	int err;
 	struct mmc_command cmd = {0};
 	unsigned long timeout;
-	u32 status;
+	u32 status = 0;
 	bool ignore_crc = false;
 
 	BUG_ON(!card);
-- 
cgit 


From e395c4387c746b4cc7aace4c44baecd7e69a3249 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Mon, 28 Oct 2013 07:45:53 +0100
Subject: mmc: wbsd: Silence compiler warning

The commit "mmc: wbsd: Move away from using deprecated APIs" introduced
a compiler warning, let's silence it.

Cc: Pierre Ossman <pierre@ossman.eu>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
---
 drivers/mmc/host/wbsd.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/mmc/host/wbsd.c b/drivers/mmc/host/wbsd.c
index 024c82414996..1defd5ed3236 100644
--- a/drivers/mmc/host/wbsd.c
+++ b/drivers/mmc/host/wbsd.c
@@ -1859,7 +1859,6 @@ static int wbsd_platform_resume(struct platform_device *dev)
 static int wbsd_pnp_suspend(struct pnp_dev *pnp_dev, pm_message_t state)
 {
 	struct mmc_host *mmc = dev_get_drvdata(&pnp_dev->dev);
-	struct wbsd_host *host;
 
 	if (mmc == NULL)
 		return 0;
-- 
cgit 


From 13eb2ab2d33c57ebddc57437a7d341995fc9138c Mon Sep 17 00:00:00 2001
From: Andreas Henriksson <andreas@fatal.se>
Date: Thu, 7 Nov 2013 18:26:38 +0100
Subject: net: Fix "ip rule delete table 256"

When trying to delete a table >= 256 using iproute2 the local table
will be deleted.
The table id is specified as a netlink attribute when it needs more then
8 bits and iproute2 then sets the table field to RT_TABLE_UNSPEC (0).
Preconditions to matching the table id in the rule delete code
doesn't seem to take the "table id in netlink attribute" into condition
so the frh_get_table helper function never gets to do its job when
matching against current rule.
Use the helper function twice instead of peaking at the table value directly.

Originally reported at: http://bugs.debian.org/724783

Reported-by: Nicolas HICHER <nhicher@avencall.com>
Signed-off-by: Andreas Henriksson <andreas@fatal.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/fib_rules.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/core/fib_rules.c b/net/core/fib_rules.c
index 2e654138433c..f409e0bd35c0 100644
--- a/net/core/fib_rules.c
+++ b/net/core/fib_rules.c
@@ -460,7 +460,8 @@ static int fib_nl_delrule(struct sk_buff *skb, struct nlmsghdr* nlh)
 		if (frh->action && (frh->action != rule->action))
 			continue;
 
-		if (frh->table && (frh_get_table(frh, tb) != rule->table))
+		if (frh_get_table(frh, tb) &&
+		    (frh_get_table(frh, tb) != rule->table))
 			continue;
 
 		if (tb[FRA_PRIORITY] &&
-- 
cgit 


From cdbe7c2d6d485459801838c244c409b938e32df5 Mon Sep 17 00:00:00 2001
From: Jiri Benc <jbenc@redhat.com>
Date: Thu, 7 Nov 2013 19:59:19 +0100
Subject: nfnetlink: do not ack malformed messages

Commit 0628b123c96d ("netfilter: nfnetlink: add batch support and use it
from nf_tables") introduced a bug leading to various crashes in netlink_ack
when netlink message with invalid nlmsg_len was sent by an unprivileged
user.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/netfilter/nfnetlink.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c
index 027f16af51a0..046aa13b4fea 100644
--- a/net/netfilter/nfnetlink.c
+++ b/net/netfilter/nfnetlink.c
@@ -363,13 +363,15 @@ static void nfnetlink_rcv(struct sk_buff *skb)
 	struct net *net = sock_net(skb->sk);
 	int msglen;
 
-	if (!ns_capable(net->user_ns, CAP_NET_ADMIN))
-		return netlink_ack(skb, nlh, -EPERM);
-
 	if (nlh->nlmsg_len < NLMSG_HDRLEN ||
 	    skb->len < nlh->nlmsg_len)
 		return;
 
+	if (!ns_capable(net->user_ns, CAP_NET_ADMIN)) {
+		netlink_ack(skb, nlh, -EPERM);
+		return;
+	}
+
 	if (nlh->nlmsg_type == NFNL_MSG_BATCH_BEGIN) {
 		struct nfgenmsg *nfgenmsg;
 
-- 
cgit 


From 8deb3eb1461e4cb136c88d03ec5a6729ccf2f933 Mon Sep 17 00:00:00 2001
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Date: Fri, 25 Oct 2013 16:26:02 -0400
Subject: xen/mcfg: Call PHYSDEVOP_pci_mmcfg_reserved for MCFG areas.

The PCI MMCONFIG area is usually reserved via the E820 so the Xen hypervisor
is aware of these regions. But they can also be enumerated in the ACPI
DSDT which means the hypervisor won't know of them until the initial
domain informs it of via PHYSDEVOP_pci_mmcfg_reserved.

This is what this patch does for all of the MCFG regions that the
initial domain is aware of (E820 enumerated and ACPI).

Reported-by:  Santosh Jodh <Santosh.Jodh@citrix.com>
CC: Jan Beulich <JBeulich@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
CC: David Vrabel <david.vrabel@citrix.com>
CC: Mukesh Rathor <mukesh.rathor@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
[v1: Redid it a bit]
[v2: Dropped the P2M 1-1 setting]
[v3: Check for Xen in-case we are running under baremetal]
[v4: Wrap with CONFIG_PCI_MMCONFIG]
---
 drivers/xen/pci.c               | 47 +++++++++++++++++++++++++++++++++++++++++
 include/xen/interface/physdev.h | 11 ++++++++++
 2 files changed, 58 insertions(+)

diff --git a/drivers/xen/pci.c b/drivers/xen/pci.c
index 18fff88254eb..d15f6e80479f 100644
--- a/drivers/xen/pci.c
+++ b/drivers/xen/pci.c
@@ -26,6 +26,7 @@
 #include <asm/xen/hypervisor.h>
 #include <asm/xen/hypercall.h>
 #include "../pci/pci.h"
+#include <asm/pci_x86.h>
 
 static bool __read_mostly pci_seg_supported = true;
 
@@ -192,3 +193,49 @@ static int __init register_xen_pci_notifier(void)
 }
 
 arch_initcall(register_xen_pci_notifier);
+
+#ifdef CONFIG_PCI_MMCONFIG
+static int __init xen_mcfg_late(void)
+{
+	struct pci_mmcfg_region *cfg;
+	int rc;
+
+	if (!xen_initial_domain())
+		return 0;
+
+	if ((pci_probe & PCI_PROBE_MMCONF) == 0)
+		return 0;
+
+	if (list_empty(&pci_mmcfg_list))
+		return 0;
+
+	/* Check whether they are in the right area. */
+	list_for_each_entry(cfg, &pci_mmcfg_list, list) {
+		struct physdev_pci_mmcfg_reserved r;
+
+		r.address = cfg->address;
+		r.segment = cfg->segment;
+		r.start_bus = cfg->start_bus;
+		r.end_bus = cfg->end_bus;
+		r.flags = XEN_PCI_MMCFG_RESERVED;
+
+		rc = HYPERVISOR_physdev_op(PHYSDEVOP_pci_mmcfg_reserved, &r);
+		switch (rc) {
+		case 0:
+		case -ENOSYS:
+			continue;
+
+		default:
+			pr_warn("Failed to report MMCONFIG reservation"
+				" state for %s to hypervisor"
+				" (%d)\n",
+				cfg->name, rc);
+		}
+	}
+	return 0;
+}
+/*
+ * Needs to be done after acpi_init which are subsys_initcall.
+ */
+subsys_initcall_sync(xen_mcfg_late);
+#endif
diff --git a/include/xen/interface/physdev.h b/include/xen/interface/physdev.h
index 7000bb1f6e96..42721d13a106 100644
--- a/include/xen/interface/physdev.h
+++ b/include/xen/interface/physdev.h
@@ -231,6 +231,17 @@ struct physdev_get_free_pirq {
 #define XEN_PCI_DEV_VIRTFN             0x2
 #define XEN_PCI_DEV_PXM                0x4
 
+#define XEN_PCI_MMCFG_RESERVED         0x1
+
+#define PHYSDEVOP_pci_mmcfg_reserved    24
+struct physdev_pci_mmcfg_reserved {
+    uint64_t address;
+    uint16_t segment;
+    uint8_t start_bus;
+    uint8_t end_bus;
+    uint32_t flags;
+};
+
 #define PHYSDEVOP_pci_device_add        25
 struct physdev_pci_device_add {
     /* IN */
-- 
cgit 


From c275a57f5ec3056f732843b11659d892235faff7 Mon Sep 17 00:00:00 2001
From: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Date: Wed, 6 Nov 2013 15:37:40 -0500
Subject: xen/balloon: Set balloon's initial state to number of existing RAM
 pages

Currently balloon's initial value is set to max_pfn which includes
non-RAM ranges such as MMIO hole. As result, initial memory target
(specified by guest's configuration file) will appear smaller than
what balloon driver perceives to be the current number of available
pages. Thus it will balloon down "extra" pages, decreasing amount of
available memory for no good reason.

Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
 drivers/xen/balloon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index b232908a6192..1b6230419704 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -641,7 +641,7 @@ static int __init balloon_init(void)
 
 	balloon_stats.current_pages = xen_pv_domain()
 		? min(xen_start_info->nr_pages - xen_released_pages, max_pfn)
-		: max_pfn;
+		: get_num_physpages();
 	balloon_stats.target_pages  = balloon_stats.current_pages;
 	balloon_stats.balloon_low   = 0;
 	balloon_stats.balloon_high  = 0;
-- 
cgit 


From 3b284bde702c191e3c63168e2d627d90d2b2515b Mon Sep 17 00:00:00 2001
From: Paul Gortmaker <paul.gortmaker@windriver.com>
Date: Fri, 8 Nov 2013 11:21:51 -0500
Subject: xen: delete new instances of added __cpuinit

commit 6efa20e49b9cb1db1ab66870cc37323474a75a13
("xen: Support 64-bit PV guest receiving NMIs") and
commit cd9151e26d31048b2b5e00fd02e110e07d2200c9
( "xen/balloon: set a mapping for ballooned out pages")
added new instances of __cpuinit usage.

We removed this a couple versions ago; we now want to remove
the compat no-op stubs.  Introducing new users is not what
we want to see at this point in time, as it will break once
the stubs are gone.

Cc: Konrad Rzeszutek Wilk <konrad@kernel.org>
Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
 arch/x86/xen/setup.c  | 2 +-
 drivers/xen/balloon.c | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/xen/setup.c b/arch/x86/xen/setup.c
index 09f3059cb00b..68c054f59de6 100644
--- a/arch/x86/xen/setup.c
+++ b/arch/x86/xen/setup.c
@@ -556,7 +556,7 @@ void xen_enable_syscall(void)
 	}
 #endif /* CONFIG_X86_64 */
 }
-void __cpuinit xen_enable_nmi(void)
+void xen_enable_nmi(void)
 {
 #ifdef CONFIG_X86_64
 	if (register_callback(CALLBACKTYPE_nmi, nmi))
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 1b6230419704..55ea73f7c70b 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -596,7 +596,7 @@ static void __init balloon_add_region(unsigned long start_pfn,
 	}
 }
 
-static int __cpuinit balloon_cpu_notify(struct notifier_block *self,
+static int balloon_cpu_notify(struct notifier_block *self,
 				    unsigned long action, void *hcpu)
 {
 	int cpu = (long)hcpu;
@@ -616,7 +616,7 @@ static int __cpuinit balloon_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static struct notifier_block balloon_cpu_notifier __cpuinitdata = {
+static struct notifier_block balloon_cpu_notifier = {
 	.notifier_call	= balloon_cpu_notify,
 };
 
-- 
cgit 


From f104a567e673f382b09542a8dc3500aa689957b4 Mon Sep 17 00:00:00 2001
From: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Date: Fri, 8 Nov 2013 09:56:53 +0800
Subject: ipv6: use rt6_get_dflt_router to get default router in rt6_route_rcv

As the rfc 4191 said, the Router Preference and Lifetime values in a
::/0 Route Information Option should override the preference and lifetime
values in the Router Advertisement header. But when the kernel deals with
a ::/0 Route Information Option, the rt6_get_route_info() always return
NULL, that means that overriding will not happen, because those default
routers were added without flag RTF_ROUTEINFO in rt6_add_dflt_router().

In order to deal with that condition, we should call rt6_get_dflt_router
when the prefix length is 0.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/route.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index c28cdda3f5db..7faa9d5e1503 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -731,8 +731,11 @@ int rt6_route_rcv(struct net_device *dev, u8 *opt, int len,
 		prefix = &prefix_buf;
 	}
 
-	rt = rt6_get_route_info(net, prefix, rinfo->prefix_len, gwaddr,
-				dev->ifindex);
+	if (rinfo->prefix_len == 0)
+		rt = rt6_get_dflt_router(gwaddr, dev);
+	else
+		rt = rt6_get_route_info(net, prefix, rinfo->prefix_len,
+					gwaddr, dev->ifindex);
 
 	if (rt && !lifetime) {
 		ip6_del_rt(rt);
-- 
cgit 


From fbd989b1d73e3b3565dad5227a581e6f456c895f Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Wed, 30 Oct 2013 01:21:27 +0000
Subject: arm: make SWIOTLB available

IOMMU_HELPER is needed because SWIOTLB calls iommu_is_span_boundary,
provided by lib/iommu_helper.c.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
CC: will.deacon@arm.com
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>

Changes in v9:
- remove uneeded include asm/cacheflush.h;
- just return 0 if !dev->dma_mask in dma_capable.

Changes in v8:
- use __phys_to_pfn and __pfn_to_phys.

Changes in v7:
- dma_mark_clean: empty implementation;
- in dma_capable use coherent_dma_mask if dma_mask hasn't been
  allocated.

Changes in v6:
- check for dev->dma_mask being NULL in dma_capable.

Changes in v5:
- implement dma_mark_clean using dmac_flush_range.

Changes in v3:
- dma_capable: do not treat dma_mask as a limit;
- remove SWIOTLB dependency on NEED_SG_DMA_LENGTH.
---
 arch/arm/Kconfig                   |  6 ++++++
 arch/arm/include/asm/dma-mapping.h | 33 +++++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 3f7714d8d2d2..180c1321dbfb 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1872,6 +1872,12 @@ config CC_STACKPROTECTOR
 	  neutralized via a kernel panic.
 	  This feature requires gcc version 4.2 or above.
 
+config SWIOTLB
+	def_bool y
+
+config IOMMU_HELPER
+	def_bool SWIOTLB
+
 config XEN_DOM0
 	def_bool y
 	depends on XEN
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 5b579b951503..1ad2c171054b 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -86,6 +86,39 @@ static inline dma_addr_t virt_to_dma(struct device *dev, void *addr)
 }
 #endif
 
+static inline dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
+{
+	unsigned int offset = paddr & ~PAGE_MASK;
+	return pfn_to_dma(dev, __phys_to_pfn(paddr)) + offset;
+}
+
+static inline phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dev_addr)
+{
+	unsigned int offset = dev_addr & ~PAGE_MASK;
+	return __pfn_to_phys(dma_to_pfn(dev, dev_addr)) + offset;
+}
+
+static inline bool dma_capable(struct device *dev, dma_addr_t addr, size_t size)
+{
+	u64 limit, mask;
+
+	if (!dev->dma_mask)
+		return 0;
+
+	mask = *dev->dma_mask;
+
+	limit = (mask + 1) & ~mask;
+	if (limit && size > limit)
+		return 0;
+
+	if ((addr | (addr + size - 1)) & ~mask)
+		return 0;
+
+	return 1;
+}
+
+static inline void dma_mark_clean(void *addr, size_t size) { }
+
 /*
  * DMA errors are defined by all-bits-set in the DMA address.
  */
-- 
cgit 


From 219354d4897fe06cb10d68308c14128a1e3fc074 Mon Sep 17 00:00:00 2001
From: John Fastabend <john.fastabend@gmail.com>
Date: Fri, 8 Nov 2013 00:50:32 -0800
Subject: ixgbe: fix build err, num_rx_queues is only available with CONFIG_RPS

In the recent support for layer 2 hardware acceleration, I added a
few references to real_num_rx_queues and num_rx_queues which are
only available with CONFIG_RPS.

The fix is first to remove unnecessary references to num_rx_queues.
Because the hardware offload case is limited to cases where RX queues
and TX queues are equal we only need a single check. Then wrap the
single case in an ifdef.

The patch that introduce this is here,

commit a6cc0cfa72e0b6d9f2c8fd858aacc32313c4f272
Author: John Fastabend <john.r.fastabend@intel.com>
Date:   Wed Nov 6 09:54:46 2013 -0800

    net: Add layer 2 hardware acceleration operations for macvlan devices

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 607275de2f1e..2e17c307c6df 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -4164,7 +4164,7 @@ static void ixgbe_add_mac_filter(struct ixgbe_adapter *adapter,
 static void ixgbe_fwd_psrtype(struct ixgbe_fwd_adapter *vadapter)
 {
 	struct ixgbe_adapter *adapter = vadapter->real_adapter;
-	int rss_i = vadapter->netdev->real_num_rx_queues;
+	int rss_i = adapter->num_rx_queues_per_pool;
 	struct ixgbe_hw *hw = &adapter->hw;
 	u16 pool = vadapter->pool;
 	u32 psrtype = IXGBE_PSRTYPE_TCPHDR |
@@ -4315,8 +4315,6 @@ static int ixgbe_fwd_ring_up(struct net_device *vdev,
 	if (err)
 		goto fwd_queue_err;
 
-	queues = min_t(unsigned int,
-		       adapter->num_rx_queues_per_pool, vdev->num_rx_queues);
 	err = netif_set_real_num_rx_queues(vdev, queues);
 	if (err)
 		goto fwd_queue_err;
@@ -7540,9 +7538,15 @@ static void *ixgbe_fwd_add(struct net_device *pdev, struct net_device *vdev)
 	struct ixgbe_adapter *adapter = netdev_priv(pdev);
 	int pool, err;
 
+#ifdef CONFIG_RPS
+	if (vdev->num_rx_queues != vdev->num_tx_queues) {
+		netdev_info(pdev, "%s: Only supports a single queue count for TX and RX\n",
+			    vdev->name);
+		return ERR_PTR(-EINVAL);
+	}
+#endif
 	/* Check for hardware restriction on number of rx/tx queues */
-	if (vdev->num_rx_queues != vdev->num_tx_queues ||
-	    vdev->num_tx_queues > IXGBE_MAX_L2A_QUEUES ||
+	if (vdev->num_tx_queues > IXGBE_MAX_L2A_QUEUES ||
 	    vdev->num_tx_queues == IXGBE_BAD_L2A_QUEUE) {
 		netdev_info(pdev,
 			    "%s: Supports RX/TX Queue counts 1,2, and 4\n",
@@ -7566,7 +7570,7 @@ static void *ixgbe_fwd_add(struct net_device *pdev, struct net_device *vdev)
 	/* Enable VMDq flag so device will be set in VM mode */
 	adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED | IXGBE_FLAG_SRIOV_ENABLED;
 	adapter->ring_feature[RING_F_VMDQ].limit = adapter->num_rx_pools;
-	adapter->ring_feature[RING_F_RSS].limit = vdev->num_rx_queues;
+	adapter->ring_feature[RING_F_RSS].limit = vdev->num_tx_queues;
 
 	/* Force reinit of ring allocation with VMDQ enabled */
 	err = ixgbe_setup_tc(pdev, netdev_get_num_tc(pdev));
-- 
cgit 


From 51f3773bdeecf6ec48647dbfea335be4e507da0b Mon Sep 17 00:00:00 2001
From: John Fastabend <john.fastabend@gmail.com>
Date: Fri, 8 Nov 2013 00:51:10 -0800
Subject: ixgbe: deleting dfwd stations out of order can cause null ptr deref

The number of stations in use is kept in the num_rx_pools counter
in the ixgbe_adapter structure. This is in turn used by the queue
allocation scheme to determine how many queues are needed to support
the number of pools in use with the current feature set.

This works as long as the pools are added and destroyed in order
because (num_rx_pools * queues_per_pool) is equal to the last
queue in use by a pool. But as soon as you delete a pool out of
order this is no longer the case. So the above multiplication
allocates to few queues and a pool may reference a ring that has
not been allocated/initialized.

To resolve use the bit mask of in use pools to determine the final
pool being used and allocate enough queues so that we don't
inadvertently remove its queues.

# ip link add link eth2 \
	numtxqueues 4 numrxqueues 4 txqueuelen 50 type macvlan
# ip link set dev macvlan0 up
# ip link add link eth2 \
	numtxqueues 4 numrxqueues 4 txqueuelen 50 type macvlan
# ip link set dev macvlan1 up
# for i in {0..100}; do
  ip link set dev macvlan0 down; ip link set dev macvlan0 up;
  done;

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 2e17c307c6df..ec1bf3edb063 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -7536,6 +7536,7 @@ static void *ixgbe_fwd_add(struct net_device *pdev, struct net_device *vdev)
 {
 	struct ixgbe_fwd_adapter *fwd_adapter = NULL;
 	struct ixgbe_adapter *adapter = netdev_priv(pdev);
+	unsigned int limit;
 	int pool, err;
 
 #ifdef CONFIG_RPS
@@ -7566,10 +7567,11 @@ static void *ixgbe_fwd_add(struct net_device *pdev, struct net_device *vdev)
 	pool = find_first_zero_bit(&adapter->fwd_bitmask, 32);
 	adapter->num_rx_pools++;
 	set_bit(pool, &adapter->fwd_bitmask);
+	limit = find_last_bit(&adapter->fwd_bitmask, 32);
 
 	/* Enable VMDq flag so device will be set in VM mode */
 	adapter->flags |= IXGBE_FLAG_VMDQ_ENABLED | IXGBE_FLAG_SRIOV_ENABLED;
-	adapter->ring_feature[RING_F_VMDQ].limit = adapter->num_rx_pools;
+	adapter->ring_feature[RING_F_VMDQ].limit = limit + 1;
 	adapter->ring_feature[RING_F_RSS].limit = vdev->num_tx_queues;
 
 	/* Force reinit of ring allocation with VMDQ enabled */
@@ -7597,11 +7599,13 @@ static void ixgbe_fwd_del(struct net_device *pdev, void *priv)
 {
 	struct ixgbe_fwd_adapter *fwd_adapter = priv;
 	struct ixgbe_adapter *adapter = fwd_adapter->real_adapter;
+	unsigned int limit;
 
 	clear_bit(fwd_adapter->pool, &adapter->fwd_bitmask);
 	adapter->num_rx_pools--;
 
-	adapter->ring_feature[RING_F_VMDQ].limit = adapter->num_rx_pools;
+	limit = find_last_bit(&adapter->fwd_bitmask, 32);
+	adapter->ring_feature[RING_F_VMDQ].limit = limit + 1;
 	ixgbe_fwd_ring_down(fwd_adapter->netdev, fwd_adapter);
 	ixgbe_setup_tc(pdev, netdev_get_num_tc(pdev));
 	netdev_dbg(pdev, "pool %i:%i queues %i:%i VSI bitmask %lx\n",
-- 
cgit 


From 92c0fd17c090238660ceb8fed95f58b67907eb3e Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Mon, 4 Nov 2013 18:11:54 +0000
Subject: pci-swiotlb-xen: call pci_request_acs only ifdef CONFIG_PCI

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
 arch/x86/xen/pci-swiotlb-xen.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/x86/xen/pci-swiotlb-xen.c b/arch/x86/xen/pci-swiotlb-xen.c
index 969570491c39..0e98e5d241d0 100644
--- a/arch/x86/xen/pci-swiotlb-xen.c
+++ b/arch/x86/xen/pci-swiotlb-xen.c
@@ -75,8 +75,10 @@ void __init pci_xen_swiotlb_init(void)
 		xen_swiotlb_init(1, true /* early */);
 		dma_ops = &xen_swiotlb_dma_ops;
 
+#ifdef CONFIG_PCI
 		/* Make sure ACS will be enabled */
 		pci_request_acs();
+#endif
 	}
 }
 
@@ -92,8 +94,10 @@ int pci_xen_swiotlb_init_late(void)
 		return rc;
 
 	dma_ops = &xen_swiotlb_dma_ops;
+#ifdef CONFIG_PCI
 	/* Make sure ACS will be enabled */
 	pci_request_acs();
+#endif
 
 	return 0;
 }
-- 
cgit 


From 6fe19278ffebdd57e5c5ec10275e6d423404364e Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Mon, 4 Nov 2013 17:54:27 +0000
Subject: swiotlb-xen: missing include dma-direction.h

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
 include/xen/swiotlb-xen.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/xen/swiotlb-xen.h b/include/xen/swiotlb-xen.h
index de8bcc641c49..4d81cccf1097 100644
--- a/include/xen/swiotlb-xen.h
+++ b/include/xen/swiotlb-xen.h
@@ -1,6 +1,7 @@
 #ifndef __LINUX_SWIOTLB_XEN_H
 #define __LINUX_SWIOTLB_XEN_H
 
+#include <linux/dma-direction.h>
 #include <linux/swiotlb.h>
 
 extern int xen_swiotlb_init(int verbose, bool early);
-- 
cgit 


From ffc555be09bd2603abdbc6f8b64c6a7477facc48 Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Wed, 6 Nov 2013 12:38:28 +0000
Subject: arm,arm64/include/asm/io.h: define struct bio_vec

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
 arch/arm/include/asm/io.h   | 1 +
 arch/arm64/include/asm/io.h | 1 +
 2 files changed, 2 insertions(+)

diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index c45effc18312..3c597c222ef2 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -374,6 +374,7 @@ extern void pci_iounmap(struct pci_dev *dev, void __iomem *addr);
 #define BIOVEC_MERGEABLE(vec1, vec2)	\
 	((bvec_to_phys((vec1)) + (vec1)->bv_len) == bvec_to_phys((vec2)))
 
+struct bio_vec;
 extern bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,
 				      const struct bio_vec *vec2);
 #define BIOVEC_PHYS_MERGEABLE(vec1, vec2)				\
diff --git a/arch/arm64/include/asm/io.h b/arch/arm64/include/asm/io.h
index c163287b9871..757c87a04531 100644
--- a/arch/arm64/include/asm/io.h
+++ b/arch/arm64/include/asm/io.h
@@ -266,6 +266,7 @@ extern int devmem_is_allowed(unsigned long pfn);
  */
 #define xlate_dev_kmem_ptr(p)	p
 
+struct bio_vec;
 extern bool xen_biovec_phys_mergeable(const struct bio_vec *vec1,
 				      const struct bio_vec *vec2);
 #define BIOVEC_PHYS_MERGEABLE(vec1, vec2)				\
-- 
cgit 


From 4863e525659abbc903aacc67fd916f12914f6c1d Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Fri, 8 Nov 2013 13:10:44 -0800
Subject: target: Add per device xcopy_lun for copy offload I/O

This patch adds a se_device->xcopy_lun that is used for local
copy offload I/O, instead of allocating + initializing a pseudo
se_lun for each received EXTENDED_COPY operation.

Also, move declaration of struct se_lun + struct se_port_stat_grps
ahead of struct se_device.

Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/target_core_device.c |  9 ++++++
 drivers/target/target_core_xcopy.c  | 18 +-----------
 include/target/target_core_base.h   | 57 +++++++++++++++++++------------------
 3 files changed, 39 insertions(+), 45 deletions(-)

diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index 569a3c7c9e5a..dbe40ef14776 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -1409,6 +1409,7 @@ static void scsi_dump_inquiry(struct se_device *dev)
 struct se_device *target_alloc_device(struct se_hba *hba, const char *name)
 {
 	struct se_device *dev;
+	struct se_lun *xcopy_lun;
 
 	dev = hba->transport->alloc_device(hba, name);
 	if (!dev)
@@ -1471,6 +1472,14 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name)
 	dev->dev_attrib.fabric_max_sectors = DA_FABRIC_MAX_SECTORS;
 	dev->dev_attrib.optimal_sectors = DA_FABRIC_MAX_SECTORS;
 
+	xcopy_lun = &dev->xcopy_lun;
+	xcopy_lun->lun_se_dev = dev;
+	init_completion(&xcopy_lun->lun_shutdown_comp);
+	INIT_LIST_HEAD(&xcopy_lun->lun_acl_list);
+	spin_lock_init(&xcopy_lun->lun_acl_lock);
+	spin_lock_init(&xcopy_lun->lun_sep_lock);
+	init_completion(&xcopy_lun->lun_ref_comp);
+
 	return dev;
 }
 
diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c
index b12fc43b5463..d67304a6aa9e 100644
--- a/drivers/target/target_core_xcopy.c
+++ b/drivers/target/target_core_xcopy.c
@@ -401,9 +401,6 @@ static void xcopy_pt_release_cmd(struct se_cmd *se_cmd)
 	struct xcopy_pt_cmd *xpt_cmd = container_of(se_cmd,
 				struct xcopy_pt_cmd, se_cmd);
 
-	if (xpt_cmd->remote_port)
-		kfree(se_cmd->se_lun);
-
 	kfree(xpt_cmd);
 }
 
@@ -568,21 +565,10 @@ static int target_xcopy_init_pt_lun(
 		return 0;
 	}
 
-	pt_cmd->se_lun = kzalloc(sizeof(struct se_lun), GFP_KERNEL);
-	if (!pt_cmd->se_lun) {
-		pr_err("Unable to allocate pt_cmd->se_lun\n");
-		return -ENOMEM;
-	}
-	init_completion(&pt_cmd->se_lun->lun_shutdown_comp);
-	INIT_LIST_HEAD(&pt_cmd->se_lun->lun_acl_list);
-	spin_lock_init(&pt_cmd->se_lun->lun_acl_lock);
-	spin_lock_init(&pt_cmd->se_lun->lun_sep_lock);
-	init_completion(&pt_cmd->se_lun->lun_ref_comp);
-
+	pt_cmd->se_lun = &se_dev->xcopy_lun;
 	pt_cmd->se_dev = se_dev;
 
 	pr_debug("Setup emulated se_dev: %p from se_dev\n", pt_cmd->se_dev);
-	pt_cmd->se_lun->lun_se_dev = se_dev;
 	pt_cmd->se_cmd_flags |= SCF_SE_LUN_CMD | SCF_CMD_XCOPY_PASSTHROUGH;
 
 	pr_debug("Setup emulated se_dev: %p to pt_cmd->se_lun->lun_se_dev\n",
@@ -653,8 +639,6 @@ static int target_xcopy_setup_pt_cmd(
 	return 0;
 
 out:
-	if (remote_port == true)
-		kfree(cmd->se_lun);
 	return ret;
 }
 
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 1ad0a4240b00..96bf1b0239cc 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -627,6 +627,34 @@ struct se_dev_attrib {
 	struct config_group da_group;
 };
 
+struct se_port_stat_grps {
+	struct config_group stat_group;
+	struct config_group scsi_port_group;
+	struct config_group scsi_tgt_port_group;
+	struct config_group scsi_transport_group;
+};
+
+struct se_lun {
+#define SE_LUN_LINK_MAGIC			0xffff7771
+	u32			lun_link_magic;
+	/* See transport_lun_status_table */
+	enum transport_lun_status_table lun_status;
+	u32			lun_access;
+	u32			lun_flags;
+	u32			unpacked_lun;
+	atomic_t		lun_acl_count;
+	spinlock_t		lun_acl_lock;
+	spinlock_t		lun_sep_lock;
+	struct completion	lun_shutdown_comp;
+	struct list_head	lun_acl_list;
+	struct se_device	*lun_se_dev;
+	struct se_port		*lun_sep;
+	struct config_group	lun_group;
+	struct se_port_stat_grps port_stat_grps;
+	struct completion	lun_ref_comp;
+	struct percpu_ref	lun_ref;
+};
+
 struct se_dev_stat_grps {
 	struct config_group stat_group;
 	struct config_group scsi_dev_group;
@@ -710,6 +738,7 @@ struct se_device {
 	struct se_subsystem_api *transport;
 	/* Linked list for struct se_hba struct se_device list */
 	struct list_head	dev_list;
+	struct se_lun		xcopy_lun;
 };
 
 struct se_hba {
@@ -729,34 +758,6 @@ struct se_hba {
 	struct se_subsystem_api *transport;
 };
 
-struct se_port_stat_grps {
-	struct config_group stat_group;
-	struct config_group scsi_port_group;
-	struct config_group scsi_tgt_port_group;
-	struct config_group scsi_transport_group;
-};
-
-struct se_lun {
-#define SE_LUN_LINK_MAGIC			0xffff7771
-	u32			lun_link_magic;
-	/* See transport_lun_status_table */
-	enum transport_lun_status_table lun_status;
-	u32			lun_access;
-	u32			lun_flags;
-	u32			unpacked_lun;
-	atomic_t		lun_acl_count;
-	spinlock_t		lun_acl_lock;
-	spinlock_t		lun_sep_lock;
-	struct completion	lun_shutdown_comp;
-	struct list_head	lun_acl_list;
-	struct se_device	*lun_se_dev;
-	struct se_port		*lun_sep;
-	struct config_group	lun_group;
-	struct se_port_stat_grps port_stat_grps;
-	struct completion	lun_ref_comp;
-	struct percpu_ref	lun_ref;
-};
-
 struct scsi_port_stats {
        u64     cmd_pdus;
        u64     tx_data_octets;
-- 
cgit 


From 959c071f0974cda7702d7574647de7ad9259eb57 Mon Sep 17 00:00:00 2001
From: Seiji Aguchi <seiji.aguchi@hds.com>
Date: Wed, 30 Oct 2013 16:36:08 -0400
Subject: x86, trace: Remove __alloc_intr_gate()

Prepare to move set_intr_gate() into a macro by removing
__alloc_intr_gate().

The purpose is to avoid failing a kernel build after applying a
subsequent patch which changes set_intr_gate() into a macro.

Signed-off-by: Seiji Aguchi <seiji.aguchi@hds.com>
Link: http://lkml.kernel.org/r/52716DB8.1080702@hds.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/include/asm/desc.h | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h
index b90e5dfeee46..d93956744cfd 100644
--- a/arch/x86/include/asm/desc.h
+++ b/arch/x86/include/asm/desc.h
@@ -395,15 +395,10 @@ static inline void trace_set_intr_gate(unsigned int gate, void *addr)
 #define __trace_alloc_intr_gate(n, addr)
 #endif
 
-static inline void __alloc_intr_gate(unsigned int n, void *addr)
-{
-	set_intr_gate(n, addr);
-}
-
 #define alloc_intr_gate(n, addr)				\
 	do {							\
 		alloc_system_vector(n);				\
-		__alloc_intr_gate(n, addr);			\
+		set_intr_gate(n, addr);				\
 		__trace_alloc_intr_gate(n, trace_##addr);	\
 	} while (0)
 
-- 
cgit 


From 25c74b10bacead867478480170083f69cfc0db48 Mon Sep 17 00:00:00 2001
From: Seiji Aguchi <seiji.aguchi@hds.com>
Date: Wed, 30 Oct 2013 16:37:00 -0400
Subject: x86, trace: Register exception handler to trace IDT

This patch registers exception handlers for tracing to a trace IDT.

To implemented it in set_intr_gate(), this patch does followings.
 - Register the exception handlers to
   the trace IDT by prepending "trace_" to the handler's names.
 - Also, newly introduce trace_page_fault() to add tracepoints
   in a subsequent patch.

Signed-off-by: Seiji Aguchi <seiji.aguchi@hds.com>
Link: http://lkml.kernel.org/r/52716DEC.5050204@hds.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/include/asm/desc.h    | 28 +++++++++++++++++++++++-----
 arch/x86/include/asm/hw_irq.h  |  3 +++
 arch/x86/include/asm/segment.h |  3 +++
 arch/x86/include/asm/traps.h   | 20 ++++++++++++++++++++
 arch/x86/kernel/entry_32.S     | 10 ++++++++++
 arch/x86/kernel/entry_64.S     | 13 ++++++++++++-
 arch/x86/kernel/head64.c       |  2 +-
 arch/x86/kernel/kvm.c          |  2 +-
 arch/x86/kernel/traps.c        | 28 ++++++++++++++--------------
 arch/x86/mm/fault.c            | 10 ++++++++++
 10 files changed, 97 insertions(+), 22 deletions(-)

diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h
index d93956744cfd..3d73437600d7 100644
--- a/arch/x86/include/asm/desc.h
+++ b/arch/x86/include/asm/desc.h
@@ -327,10 +327,25 @@ static inline void write_trace_idt_entry(int entry, const gate_desc *gate)
 {
 	write_idt_entry(trace_idt_table, entry, gate);
 }
+
+static inline void _trace_set_gate(int gate, unsigned type, void *addr,
+				   unsigned dpl, unsigned ist, unsigned seg)
+{
+	gate_desc s;
+
+	pack_gate(&s, type, (unsigned long)addr, dpl, ist, seg);
+	/*
+	 * does not need to be atomic because it is only done once at
+	 * setup time
+	 */
+	write_trace_idt_entry(gate, &s);
+}
 #else
 static inline void write_trace_idt_entry(int entry, const gate_desc *gate)
 {
 }
+
+#define _trace_set_gate(gate, type, addr, dpl, ist, seg)
 #endif
 
 static inline void _set_gate(int gate, unsigned type, void *addr,
@@ -353,11 +368,14 @@ static inline void _set_gate(int gate, unsigned type, void *addr,
  * Pentium F0 0F bugfix can have resulted in the mapped
  * IDT being write-protected.
  */
-static inline void set_intr_gate(unsigned int n, void *addr)
-{
-	BUG_ON((unsigned)n > 0xFF);
-	_set_gate(n, GATE_INTERRUPT, addr, 0, 0, __KERNEL_CS);
-}
+#define set_intr_gate(n, addr)						\
+	do {								\
+		BUG_ON((unsigned)n > 0xFF);				\
+		_set_gate(n, GATE_INTERRUPT, (void *)addr, 0, 0,	\
+			  __KERNEL_CS);					\
+		_trace_set_gate(n, GATE_INTERRUPT, (void *)trace_##addr,\
+				0, 0, __KERNEL_CS);			\
+	} while (0)
 
 extern int first_system_vector;
 /* used_vectors is BITMAP for irq is not managed by percpu vector_irq */
diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
index 92b3bae08b74..cba45d99ac1a 100644
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -187,6 +187,9 @@ extern __visible void smp_invalidate_interrupt(struct pt_regs *);
 #endif
 
 extern void (*__initconst interrupt[NR_VECTORS-FIRST_EXTERNAL_VECTOR])(void);
+#ifdef CONFIG_TRACING
+#define trace_interrupt interrupt
+#endif
 
 typedef int vector_irq_t[NR_VECTORS];
 DECLARE_PER_CPU(vector_irq_t, vector_irq);
diff --git a/arch/x86/include/asm/segment.h b/arch/x86/include/asm/segment.h
index c48a95035a77..6f1c3a8a33ab 100644
--- a/arch/x86/include/asm/segment.h
+++ b/arch/x86/include/asm/segment.h
@@ -214,6 +214,9 @@
 #ifdef __KERNEL__
 #ifndef __ASSEMBLY__
 extern const char early_idt_handlers[NUM_EXCEPTION_VECTORS][2+2+5];
+#ifdef CONFIG_TRACING
+#define trace_early_idt_handlers early_idt_handlers
+#endif
 
 /*
  * Load a segment. Fall back on loading the zero
diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h
index 7036cb60cd87..58d66fe06b61 100644
--- a/arch/x86/include/asm/traps.h
+++ b/arch/x86/include/asm/traps.h
@@ -37,6 +37,23 @@ asmlinkage void machine_check(void);
 #endif /* CONFIG_X86_MCE */
 asmlinkage void simd_coprocessor_error(void);
 
+#ifdef CONFIG_TRACING
+asmlinkage void trace_page_fault(void);
+#define trace_divide_error divide_error
+#define trace_bounds bounds
+#define trace_invalid_op invalid_op
+#define trace_device_not_available device_not_available
+#define trace_coprocessor_segment_overrun coprocessor_segment_overrun
+#define trace_invalid_TSS invalid_TSS
+#define trace_segment_not_present segment_not_present
+#define trace_general_protection general_protection
+#define trace_spurious_interrupt_bug spurious_interrupt_bug
+#define trace_coprocessor_error coprocessor_error
+#define trace_alignment_check alignment_check
+#define trace_simd_coprocessor_error simd_coprocessor_error
+#define trace_async_page_fault async_page_fault
+#endif
+
 dotraplinkage void do_divide_error(struct pt_regs *, long);
 dotraplinkage void do_debug(struct pt_regs *, long);
 dotraplinkage void do_nmi(struct pt_regs *, long);
@@ -55,6 +72,9 @@ asmlinkage __kprobes struct pt_regs *sync_regs(struct pt_regs *);
 #endif
 dotraplinkage void do_general_protection(struct pt_regs *, long);
 dotraplinkage void do_page_fault(struct pt_regs *, unsigned long);
+#ifdef CONFIG_TRACING
+dotraplinkage void trace_do_page_fault(struct pt_regs *, unsigned long);
+#endif
 dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *, long);
 dotraplinkage void do_coprocessor_error(struct pt_regs *, long);
 dotraplinkage void do_alignment_check(struct pt_regs *, long);
diff --git a/arch/x86/kernel/entry_32.S b/arch/x86/kernel/entry_32.S
index f0dcb0ceb6a2..0661abe1c395 100644
--- a/arch/x86/kernel/entry_32.S
+++ b/arch/x86/kernel/entry_32.S
@@ -1247,6 +1247,16 @@ return_to_handler:
  */
 	.pushsection .kprobes.text, "ax"
 
+#ifdef CONFIG_TRACING
+ENTRY(trace_page_fault)
+	RING0_EC_FRAME
+	ASM_CLAC
+	pushl_cfi $trace_do_page_fault
+	jmp error_code
+	CFI_ENDPROC
+END(trace_page_fault)
+#endif
+
 ENTRY(page_fault)
 	RING0_EC_FRAME
 	ASM_CLAC
diff --git a/arch/x86/kernel/entry_64.S b/arch/x86/kernel/entry_64.S
index b077f4cc225a..8b7b1698510d 100644
--- a/arch/x86/kernel/entry_64.S
+++ b/arch/x86/kernel/entry_64.S
@@ -1280,6 +1280,17 @@ ENTRY(\sym)
 END(\sym)
 .endm
 
+#ifdef CONFIG_TRACING
+.macro trace_errorentry sym do_sym
+errorentry trace(\sym) trace(\do_sym)
+errorentry \sym \do_sym
+.endm
+#else
+.macro trace_errorentry sym do_sym
+errorentry \sym \do_sym
+.endm
+#endif
+
 	/* error code is on the stack already */
 .macro paranoiderrorentry sym do_sym
 ENTRY(\sym)
@@ -1482,7 +1493,7 @@ zeroentry xen_int3 do_int3
 errorentry xen_stack_segment do_stack_segment
 #endif
 errorentry general_protection do_general_protection
-errorentry page_fault do_page_fault
+trace_errorentry page_fault do_page_fault
 #ifdef CONFIG_KVM_GUEST
 errorentry async_page_fault do_async_page_fault
 #endif
diff --git a/arch/x86/kernel/head64.c b/arch/x86/kernel/head64.c
index 1be8e43b669e..85126ccbdf6b 100644
--- a/arch/x86/kernel/head64.c
+++ b/arch/x86/kernel/head64.c
@@ -162,7 +162,7 @@ asmlinkage void __init x86_64_start_kernel(char * real_mode_data)
 	clear_bss();
 
 	for (i = 0; i < NUM_EXCEPTION_VECTORS; i++)
-		set_intr_gate(i, &early_idt_handlers[i]);
+		set_intr_gate(i, early_idt_handlers[i]);
 	load_idt((const struct desc_ptr *)&idt_descr);
 
 	copy_bootdata(__va(real_mode_data));
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index b2046e4d0b59..6dd802c6d780 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -464,7 +464,7 @@ static struct notifier_block kvm_cpu_notifier = {
 
 static void __init kvm_apf_trap_init(void)
 {
-	set_intr_gate(14, &async_page_fault);
+	set_intr_gate(14, async_page_fault);
 }
 
 void __init kvm_guest_init(void)
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 8c8093b146ca..1c9d0ad5a193 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -713,7 +713,7 @@ void __init early_trap_init(void)
 	/* int3 can be called from all */
 	set_system_intr_gate_ist(X86_TRAP_BP, &int3, DEBUG_STACK);
 #ifdef CONFIG_X86_32
-	set_intr_gate(X86_TRAP_PF, &page_fault);
+	set_intr_gate(X86_TRAP_PF, page_fault);
 #endif
 	load_idt(&idt_descr);
 }
@@ -721,7 +721,7 @@ void __init early_trap_init(void)
 void __init early_trap_pf_init(void)
 {
 #ifdef CONFIG_X86_64
-	set_intr_gate(X86_TRAP_PF, &page_fault);
+	set_intr_gate(X86_TRAP_PF, page_fault);
 #endif
 }
 
@@ -737,30 +737,30 @@ void __init trap_init(void)
 	early_iounmap(p, 4);
 #endif
 
-	set_intr_gate(X86_TRAP_DE, &divide_error);
+	set_intr_gate(X86_TRAP_DE, divide_error);
 	set_intr_gate_ist(X86_TRAP_NMI, &nmi, NMI_STACK);
 	/* int4 can be called from all */
 	set_system_intr_gate(X86_TRAP_OF, &overflow);
-	set_intr_gate(X86_TRAP_BR, &bounds);
-	set_intr_gate(X86_TRAP_UD, &invalid_op);
-	set_intr_gate(X86_TRAP_NM, &device_not_available);
+	set_intr_gate(X86_TRAP_BR, bounds);
+	set_intr_gate(X86_TRAP_UD, invalid_op);
+	set_intr_gate(X86_TRAP_NM, device_not_available);
 #ifdef CONFIG_X86_32
 	set_task_gate(X86_TRAP_DF, GDT_ENTRY_DOUBLEFAULT_TSS);
 #else
 	set_intr_gate_ist(X86_TRAP_DF, &double_fault, DOUBLEFAULT_STACK);
 #endif
-	set_intr_gate(X86_TRAP_OLD_MF, &coprocessor_segment_overrun);
-	set_intr_gate(X86_TRAP_TS, &invalid_TSS);
-	set_intr_gate(X86_TRAP_NP, &segment_not_present);
+	set_intr_gate(X86_TRAP_OLD_MF, coprocessor_segment_overrun);
+	set_intr_gate(X86_TRAP_TS, invalid_TSS);
+	set_intr_gate(X86_TRAP_NP, segment_not_present);
 	set_intr_gate_ist(X86_TRAP_SS, &stack_segment, STACKFAULT_STACK);
-	set_intr_gate(X86_TRAP_GP, &general_protection);
-	set_intr_gate(X86_TRAP_SPURIOUS, &spurious_interrupt_bug);
-	set_intr_gate(X86_TRAP_MF, &coprocessor_error);
-	set_intr_gate(X86_TRAP_AC, &alignment_check);
+	set_intr_gate(X86_TRAP_GP, general_protection);
+	set_intr_gate(X86_TRAP_SPURIOUS, spurious_interrupt_bug);
+	set_intr_gate(X86_TRAP_MF, coprocessor_error);
+	set_intr_gate(X86_TRAP_AC, alignment_check);
 #ifdef CONFIG_X86_MCE
 	set_intr_gate_ist(X86_TRAP_MC, &machine_check, MCE_STACK);
 #endif
-	set_intr_gate(X86_TRAP_XF, &simd_coprocessor_error);
+	set_intr_gate(X86_TRAP_XF, simd_coprocessor_error);
 
 	/* Reserve all the builtin and the syscall vector: */
 	for (i = 0; i < FIRST_EXTERNAL_VECTOR; i++)
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 3aaeffcfd67a..fd3e281fbc70 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -1231,3 +1231,13 @@ do_page_fault(struct pt_regs *regs, unsigned long error_code)
 	__do_page_fault(regs, error_code);
 	exception_exit(prev_state);
 }
+
+dotraplinkage void __kprobes
+trace_do_page_fault(struct pt_regs *regs, unsigned long error_code)
+{
+	enum ctx_state prev_state;
+
+	prev_state = exception_enter();
+	__do_page_fault(regs, error_code);
+	exception_exit(prev_state);
+}
-- 
cgit 


From ac7956e2699380b8b10146ec2ba8cbe43a03ff7a Mon Sep 17 00:00:00 2001
From: Seiji Aguchi <seiji.aguchi@hds.com>
Date: Wed, 30 Oct 2013 16:37:47 -0400
Subject: x86, trace: Delete __trace_alloc_intr_gate()

Currently irq vector handlers for tracing are registered in both set_intr_gate()
 and __trace_alloc_intr_gate() in alloc_intr_gate().
But, we don't need to do that twice.
So, let's delete __trace_alloc_intr_gate().

Signed-off-by: Seiji Aguchi <seiji.aguchi@hds.com>
Link: http://lkml.kernel.org/r/52716E1B.7090205@hds.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/include/asm/desc.h | 22 ----------------------
 1 file changed, 22 deletions(-)

diff --git a/arch/x86/include/asm/desc.h b/arch/x86/include/asm/desc.h
index 3d73437600d7..50d033a8947d 100644
--- a/arch/x86/include/asm/desc.h
+++ b/arch/x86/include/asm/desc.h
@@ -392,32 +392,10 @@ static inline void alloc_system_vector(int vector)
 	}
 }
 
-#ifdef CONFIG_TRACING
-static inline void trace_set_intr_gate(unsigned int gate, void *addr)
-{
-	gate_desc s;
-
-	pack_gate(&s, GATE_INTERRUPT, (unsigned long)addr, 0, 0, __KERNEL_CS);
-	write_idt_entry(trace_idt_table, gate, &s);
-}
-
-static inline void __trace_alloc_intr_gate(unsigned int n, void *addr)
-{
-	trace_set_intr_gate(n, addr);
-}
-#else
-static inline void trace_set_intr_gate(unsigned int gate, void *addr)
-{
-}
-
-#define __trace_alloc_intr_gate(n, addr)
-#endif
-
 #define alloc_intr_gate(n, addr)				\
 	do {							\
 		alloc_system_vector(n);				\
 		set_intr_gate(n, addr);				\
-		__trace_alloc_intr_gate(n, trace_##addr);	\
 	} while (0)
 
 /*
-- 
cgit 


From d34603b07c4255b2b00a546d34f297ccd50ae4c6 Mon Sep 17 00:00:00 2001
From: Seiji Aguchi <seiji.aguchi@hds.com>
Date: Wed, 30 Oct 2013 16:39:03 -0400
Subject: x86, trace: Add page fault tracepoints

This patch introduces page fault tracepoints to x86 architecture
by switching IDT.

  Two events, for user and kernel spaces, are introduced at the beginning
  of page fault handler for tracing.

  - User space event
    There is a request of page fault event for user space as below.

    https://lkml.kernel.org/r/1368079520-11015-2-git-send-email-fdeslaur+()+gmail+!+com
    https://lkml.kernel.org/r/1368079520-11015-1-git-send-email-fdeslaur+()+gmail+!+com

  - Kernel space event:
    When we measure an overhead in kernel space for investigating performance
    issues, we can check if it comes from the page fault events.

Signed-off-by: Seiji Aguchi <seiji.aguchi@hds.com>
Link: http://lkml.kernel.org/r/52716E67.6090705@hds.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/include/asm/trace/exceptions.h | 52 +++++++++++++++++++++++++++++++++
 arch/x86/mm/Makefile                    |  2 ++
 arch/x86/mm/fault.c                     | 13 +++++++++
 3 files changed, 67 insertions(+)
 create mode 100644 arch/x86/include/asm/trace/exceptions.h

diff --git a/arch/x86/include/asm/trace/exceptions.h b/arch/x86/include/asm/trace/exceptions.h
new file mode 100644
index 000000000000..86540c094ecc
--- /dev/null
+++ b/arch/x86/include/asm/trace/exceptions.h
@@ -0,0 +1,52 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM exceptions
+
+#if !defined(_TRACE_PAGE_FAULT_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_PAGE_FAULT_H
+
+#include <linux/tracepoint.h>
+
+extern void trace_irq_vector_regfunc(void);
+extern void trace_irq_vector_unregfunc(void);
+
+DECLARE_EVENT_CLASS(x86_exceptions,
+
+	TP_PROTO(unsigned long address, struct pt_regs *regs,
+		 unsigned long error_code),
+
+	TP_ARGS(address, regs, error_code),
+
+	TP_STRUCT__entry(
+		__field(		unsigned long, address	)
+		__field(		unsigned long, ip	)
+		__field(		unsigned long, error_code )
+	),
+
+	TP_fast_assign(
+		__entry->address = address;
+		__entry->ip = regs->ip;
+		__entry->error_code = error_code;
+	),
+
+	TP_printk("address=%pf ip=%pf error_code=0x%lx",
+		  (void *)__entry->address, (void *)__entry->ip,
+		  __entry->error_code) );
+
+#define DEFINE_PAGE_FAULT_EVENT(name)				\
+DEFINE_EVENT_FN(x86_exceptions, name,				\
+	TP_PROTO(unsigned long address,	struct pt_regs *regs,	\
+		 unsigned long error_code),			\
+	TP_ARGS(address, regs, error_code),			\
+	trace_irq_vector_regfunc,				\
+	trace_irq_vector_unregfunc);
+
+DEFINE_PAGE_FAULT_EVENT(user_page_fault);
+DEFINE_PAGE_FAULT_EVENT(kernel_page_fault);
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#define TRACE_INCLUDE_FILE exceptions
+#endif /*  _TRACE_PAGE_FAULT_H */
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/arch/x86/mm/Makefile b/arch/x86/mm/Makefile
index 23d8e5fecf76..6a19ad9f370d 100644
--- a/arch/x86/mm/Makefile
+++ b/arch/x86/mm/Makefile
@@ -6,6 +6,8 @@ nostackp := $(call cc-option, -fno-stack-protector)
 CFLAGS_physaddr.o		:= $(nostackp)
 CFLAGS_setup_nx.o		:= $(nostackp)
 
+CFLAGS_fault.o := -I$(src)/../include/asm/trace
+
 obj-$(CONFIG_X86_PAT)		+= pat_rbtree.o
 obj-$(CONFIG_SMP)		+= tlb.o
 
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index fd3e281fbc70..f2730cbce0b5 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -20,6 +20,9 @@
 #include <asm/kmemcheck.h>		/* kmemcheck_*(), ...		*/
 #include <asm/fixmap.h>			/* VSYSCALL_START		*/
 
+#define CREATE_TRACE_POINTS
+#include <asm/trace/exceptions.h>
+
 /*
  * Page fault error code bits:
  *
@@ -1232,12 +1235,22 @@ do_page_fault(struct pt_regs *regs, unsigned long error_code)
 	exception_exit(prev_state);
 }
 
+static void trace_page_fault_entries(struct pt_regs *regs,
+				     unsigned long error_code)
+{
+	if (user_mode(regs))
+		trace_user_page_fault(read_cr2(), regs, error_code);
+	else
+		trace_kernel_page_fault(read_cr2(), regs, error_code);
+}
+
 dotraplinkage void __kprobes
 trace_do_page_fault(struct pt_regs *regs, unsigned long error_code)
 {
 	enum ctx_state prev_state;
 
 	prev_state = exception_enter();
+	trace_page_fault_entries(regs, error_code);
 	__do_page_fault(regs, error_code);
 	exception_exit(prev_state);
 }
-- 
cgit 


From a6b31d18b02ff9d7915c5898c9b5ca41a798cd73 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Fri, 8 Nov 2013 16:03:50 -0500
Subject: SUNRPC: Fix a data corruption issue when retransmitting RPC calls

The following scenario can cause silent data corruption when doing
NFS writes. It has mainly been observed when doing database writes
using O_DIRECT.

1) The RPC client uses sendpage() to do zero-copy of the page data.
2) Due to networking issues, the reply from the server is delayed,
   and so the RPC client times out.

3) The client issues a second sendpage of the page data as part of
   an RPC call retransmission.

4) The reply to the first transmission arrives from the server
   _before_ the client hardware has emptied the TCP socket send
   buffer.
5) After processing the reply, the RPC state machine rules that
   the call to be done, and triggers the completion callbacks.
6) The application notices the RPC call is done, and reuses the
   pages to store something else (e.g. a new write).

7) The client NIC drains the TCP socket send buffer. Since the
   page data has now changed, it reads a corrupted version of the
   initial RPC call, and puts it on the wire.

This patch fixes the problem in the following manner:

The ordering guarantees of TCP ensure that when the server sends a
reply, then we know that the _first_ transmission has completed. Using
zero-copy in that situation is therefore safe.
If a time out occurs, we then send the retransmission using sendmsg()
(i.e. no zero-copy), We then know that the socket contains a full copy of
the data, and so it will retransmit a faithful reproduction even if the
RPC call completes, and the application reuses the O_DIRECT buffer in
the meantime.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
---
 net/sunrpc/xprtsock.c | 28 +++++++++++++++++++++-------
 1 file changed, 21 insertions(+), 7 deletions(-)

diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 17c88928b7db..dd9d295813cf 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -393,8 +393,10 @@ static int xs_send_kvec(struct socket *sock, struct sockaddr *addr, int addrlen,
 	return kernel_sendmsg(sock, &msg, NULL, 0, 0);
 }
 
-static int xs_send_pagedata(struct socket *sock, struct xdr_buf *xdr, unsigned int base, int more)
+static int xs_send_pagedata(struct socket *sock, struct xdr_buf *xdr, unsigned int base, int more, bool zerocopy)
 {
+	ssize_t (*do_sendpage)(struct socket *sock, struct page *page,
+			int offset, size_t size, int flags);
 	struct page **ppage;
 	unsigned int remainder;
 	int err, sent = 0;
@@ -403,6 +405,9 @@ static int xs_send_pagedata(struct socket *sock, struct xdr_buf *xdr, unsigned i
 	base += xdr->page_base;
 	ppage = xdr->pages + (base >> PAGE_SHIFT);
 	base &= ~PAGE_MASK;
+	do_sendpage = sock->ops->sendpage;
+	if (!zerocopy)
+		do_sendpage = sock_no_sendpage;
 	for(;;) {
 		unsigned int len = min_t(unsigned int, PAGE_SIZE - base, remainder);
 		int flags = XS_SENDMSG_FLAGS;
@@ -410,7 +415,7 @@ static int xs_send_pagedata(struct socket *sock, struct xdr_buf *xdr, unsigned i
 		remainder -= len;
 		if (remainder != 0 || more)
 			flags |= MSG_MORE;
-		err = sock->ops->sendpage(sock, *ppage, base, len, flags);
+		err = do_sendpage(sock, *ppage, base, len, flags);
 		if (remainder == 0 || err != len)
 			break;
 		sent += err;
@@ -431,9 +436,10 @@ static int xs_send_pagedata(struct socket *sock, struct xdr_buf *xdr, unsigned i
  * @addrlen: UDP only -- length of destination address
  * @xdr: buffer containing this request
  * @base: starting position in the buffer
+ * @zerocopy: true if it is safe to use sendpage()
  *
  */
-static int xs_sendpages(struct socket *sock, struct sockaddr *addr, int addrlen, struct xdr_buf *xdr, unsigned int base)
+static int xs_sendpages(struct socket *sock, struct sockaddr *addr, int addrlen, struct xdr_buf *xdr, unsigned int base, bool zerocopy)
 {
 	unsigned int remainder = xdr->len - base;
 	int err, sent = 0;
@@ -461,7 +467,7 @@ static int xs_sendpages(struct socket *sock, struct sockaddr *addr, int addrlen,
 	if (base < xdr->page_len) {
 		unsigned int len = xdr->page_len - base;
 		remainder -= len;
-		err = xs_send_pagedata(sock, xdr, base, remainder != 0);
+		err = xs_send_pagedata(sock, xdr, base, remainder != 0, zerocopy);
 		if (remainder == 0 || err != len)
 			goto out;
 		sent += err;
@@ -564,7 +570,7 @@ static int xs_local_send_request(struct rpc_task *task)
 			req->rq_svec->iov_base, req->rq_svec->iov_len);
 
 	status = xs_sendpages(transport->sock, NULL, 0,
-						xdr, req->rq_bytes_sent);
+						xdr, req->rq_bytes_sent, true);
 	dprintk("RPC:       %s(%u) = %d\n",
 			__func__, xdr->len - req->rq_bytes_sent, status);
 	if (likely(status >= 0)) {
@@ -620,7 +626,7 @@ static int xs_udp_send_request(struct rpc_task *task)
 	status = xs_sendpages(transport->sock,
 			      xs_addr(xprt),
 			      xprt->addrlen, xdr,
-			      req->rq_bytes_sent);
+			      req->rq_bytes_sent, true);
 
 	dprintk("RPC:       xs_udp_send_request(%u) = %d\n",
 			xdr->len - req->rq_bytes_sent, status);
@@ -693,6 +699,7 @@ static int xs_tcp_send_request(struct rpc_task *task)
 	struct rpc_xprt *xprt = req->rq_xprt;
 	struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
 	struct xdr_buf *xdr = &req->rq_snd_buf;
+	bool zerocopy = true;
 	int status;
 
 	xs_encode_stream_record_marker(&req->rq_snd_buf);
@@ -700,13 +707,20 @@ static int xs_tcp_send_request(struct rpc_task *task)
 	xs_pktdump("packet data:",
 				req->rq_svec->iov_base,
 				req->rq_svec->iov_len);
+	/* Don't use zero copy if this is a resend. If the RPC call
+	 * completes while the socket holds a reference to the pages,
+	 * then we may end up resending corrupted data.
+	 */
+	if (task->tk_flags & RPC_TASK_SENT)
+		zerocopy = false;
 
 	/* Continue transmitting the packet/record. We must be careful
 	 * to cope with writespace callbacks arriving _after_ we have
 	 * called sendmsg(). */
 	while (1) {
 		status = xs_sendpages(transport->sock,
-					NULL, 0, xdr, req->rq_bytes_sent);
+					NULL, 0, xdr, req->rq_bytes_sent,
+					zerocopy);
 
 		dprintk("RPC:       xs_tcp_send_request(%u) = %d\n",
 				xdr->len - req->rq_bytes_sent, status);
-- 
cgit 


From 29f27e8477aee4e619889add998a1976d67b60a5 Mon Sep 17 00:00:00 2001
From: Doug Ledford <dledford@redhat.com>
Date: Tue, 24 Sep 2013 17:16:27 -0400
Subject: IB/cma: Use cached gids

The cma_acquire_dev function was changed by commit 3c86aa70bf67
("RDMA/cm: Add RDMA CM support for IBoE devices") to use find_gid_port()
because multiport devices might have either IB or IBoE formatted gids.
The old function assumed that all ports on the same device used the
same GID format.

However, when it was changed to use find_gid_port(), we inadvertently
lost usage of the GID cache.  This turned out to be a very costly
change.  In our testing, each iteration through each index of the GID
table takes roughly 35us.  When you have multiple devices in a system,
and the GID you are looking for is on one of the later devices, the
code loops through all of the GID indexes on all of the early devices
before it finally succeeds on the target device.  This pathological
search behavior combined with 35us per GID table index retrieval
results in results such as the following from the cmtime application
that's part of the latest librdmacm git repo:

ib1:
step              total ms     max ms     min us  us / conn
create id    :       29.42       0.04       1.00       2.94
bind addr    :   186705.66      19.00   18556.00   18670.57
resolve addr :       41.93       9.68     619.00       4.19
resolve route:      486.93       0.48     101.00      48.69
create qp    :     4021.95       6.18     330.00     402.20
connect      :    68350.39   68588.17   24632.00    6835.04
disconnect   :     1460.43     252.65-1862269.00     146.04
destroy      :       41.16       0.04       2.00       4.12

ib0:
step              total ms     max ms     min us  us / conn
create id    :       28.61       0.68       1.00       2.86
bind addr    :     2178.86       2.95     201.00     217.89
resolve addr :       51.26      16.85     845.00       5.13
resolve route:      620.08       0.43      92.00      62.01
create qp    :     3344.40       6.36     273.00     334.44
connect      :     6435.99    6368.53    7844.00     643.60
disconnect   :     5095.38     321.90     757.00     509.54
destroy      :       37.13       0.02       2.00       3.71

Clearly, both the bind address and connect operations suffer
a huge penalty for being anything other than the default
GID on the first port in the system.

After applying this patch, the numbers now look like this:

ib1:
step              total ms     max ms     min us  us / conn
create id    :       30.15       0.03       1.00       3.01
bind addr    :       80.27       0.04       7.00       8.03
resolve addr :       43.02      13.53     589.00       4.30
resolve route:      482.90       0.45     100.00      48.29
create qp    :     3986.55       5.80     330.00     398.66
connect      :     7141.53    7051.29    5005.00     714.15
disconnect   :     5038.85     193.63     918.00     503.88
destroy      :       37.02       0.04       2.00       3.70

ib0:
step              total ms     max ms     min us  us / conn
create id    :       34.27       0.05       1.00       3.43
bind addr    :       26.45       0.04       1.00       2.64
resolve addr :       38.25      10.54     760.00       3.82
resolve route:      604.79       0.43      97.00      60.48
create qp    :     3314.95       6.34     273.00     331.49
connect      :    12399.26   12351.10    8609.00    1239.93
disconnect   :     5096.76     270.72    1015.00     509.68
destroy      :       37.10       0.03       2.00       3.71

It's worth noting that we still suffer a bit of a penalty on
connect to the wrong device, but the penalty is much less than
it used to be.  Follow on patches deal with this penalty.

Many thanks to Neil Horman for helping to track the source of
slow function that allowed us to track down the fact that
the original patch I mentioned above backed out cache usage
and identify just how much that impacted the system.

Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/core/cma.c | 35 ++++++-----------------------------
 1 file changed, 6 insertions(+), 29 deletions(-)

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index dab4b41f1715..c62ff9e7f8c6 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -328,28 +328,6 @@ static int cma_set_qkey(struct rdma_id_private *id_priv, u32 qkey)
 	return ret;
 }
 
-static int find_gid_port(struct ib_device *device, union ib_gid *gid, u8 port_num)
-{
-	int i;
-	int err;
-	struct ib_port_attr props;
-	union ib_gid tmp;
-
-	err = ib_query_port(device, port_num, &props);
-	if (err)
-		return err;
-
-	for (i = 0; i < props.gid_tbl_len; ++i) {
-		err = ib_query_gid(device, port_num, i, &tmp);
-		if (err)
-			return err;
-		if (!memcmp(&tmp, gid, sizeof tmp))
-			return 0;
-	}
-
-	return -EADDRNOTAVAIL;
-}
-
 static void cma_translate_ib(struct sockaddr_ib *sib, struct rdma_dev_addr *dev_addr)
 {
 	dev_addr->dev_type = ARPHRD_INFINIBAND;
@@ -377,7 +355,7 @@ static int cma_acquire_dev(struct rdma_id_private *id_priv)
 	struct cma_device *cma_dev;
 	union ib_gid gid, iboe_gid;
 	int ret = -ENODEV;
-	u8 port;
+	u8 port, found_port;
 	enum rdma_link_layer dev_ll = dev_addr->dev_type == ARPHRD_INFINIBAND ?
 		IB_LINK_LAYER_INFINIBAND : IB_LINK_LAYER_ETHERNET;
 
@@ -390,20 +368,19 @@ static int cma_acquire_dev(struct rdma_id_private *id_priv)
 	memcpy(&gid, dev_addr->src_dev_addr +
 	       rdma_addr_gid_offset(dev_addr), sizeof gid);
 	list_for_each_entry(cma_dev, &dev_list, list) {
-		for (port = 1; port <= cma_dev->device->phys_port_cnt; ++port) {
+		for (port = 1; port <= cma_dev->device->phys_port_cnt; ++port)
 			if (rdma_port_get_link_layer(cma_dev->device, port) == dev_ll) {
 				if (rdma_node_get_transport(cma_dev->device->node_type) == RDMA_TRANSPORT_IB &&
 				    rdma_port_get_link_layer(cma_dev->device, port) == IB_LINK_LAYER_ETHERNET)
-					ret = find_gid_port(cma_dev->device, &iboe_gid, port);
+					ret = ib_find_cached_gid(cma_dev->device, &iboe_gid, &found_port, NULL);
 				else
-					ret = find_gid_port(cma_dev->device, &gid, port);
+					ret = ib_find_cached_gid(cma_dev->device, &gid, &found_port, NULL);
 
-				if (!ret) {
-					id_priv->id.port_num = port;
+				if (!ret && (port == found_port)) {
+					id_priv->id.port_num = found_port;
 					goto out;
 				}
 			}
-		}
 	}
 
 out:
-- 
cgit 


From be9130cc927f13ad0159650ed03159ecc82c0262 Mon Sep 17 00:00:00 2001
From: Doug Ledford <dledford@redhat.com>
Date: Tue, 24 Sep 2013 17:16:28 -0400
Subject: IB/cma: Check for GID on listening device first

As a simple optimization that should speed up the vast majority of
connect attemps on IB devices, when we are searching for the GID of an
incoming connection in the cached GID lists of devices, search the
device that received the incoming connection request first.  If we
don't find it there, then move on to other devices.

This reduces the time to perform 10,000 connections considerably.
Prior to this patch, a bad run of cmtime would look like this:

connect      :    12399.26   12351.10    8609.00    1239.93

With this patch, it looks more like this:

connect      :     5864.86    5799.80    8876.00     586.49

Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/core/cma.c | 36 ++++++++++++++++++++++++++++++------
 1 file changed, 30 insertions(+), 6 deletions(-)

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index c62ff9e7f8c6..dadc486b92f0 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -349,7 +349,8 @@ static int cma_translate_addr(struct sockaddr *addr, struct rdma_dev_addr *dev_a
 	return ret;
 }
 
-static int cma_acquire_dev(struct rdma_id_private *id_priv)
+static int cma_acquire_dev(struct rdma_id_private *id_priv,
+			   struct rdma_id_private *listen_id_priv)
 {
 	struct rdma_dev_addr *dev_addr = &id_priv->id.route.addr.dev_addr;
 	struct cma_device *cma_dev;
@@ -367,8 +368,30 @@ static int cma_acquire_dev(struct rdma_id_private *id_priv)
 	iboe_addr_get_sgid(dev_addr, &iboe_gid);
 	memcpy(&gid, dev_addr->src_dev_addr +
 	       rdma_addr_gid_offset(dev_addr), sizeof gid);
+	if (listen_id_priv &&
+	    rdma_port_get_link_layer(listen_id_priv->id.device,
+				     listen_id_priv->id.port_num) == dev_ll) {
+		cma_dev = listen_id_priv->cma_dev;
+		port = listen_id_priv->id.port_num;
+		if (rdma_node_get_transport(cma_dev->device->node_type) == RDMA_TRANSPORT_IB &&
+		    rdma_port_get_link_layer(cma_dev->device, port) == IB_LINK_LAYER_ETHERNET)
+			ret = ib_find_cached_gid(cma_dev->device, &iboe_gid,
+						 &found_port, NULL);
+		else
+			ret = ib_find_cached_gid(cma_dev->device, &gid,
+						 &found_port, NULL);
+
+		if (!ret && (port  == found_port)) {
+			id_priv->id.port_num = found_port;
+			goto out;
+		}
+	}
 	list_for_each_entry(cma_dev, &dev_list, list) {
-		for (port = 1; port <= cma_dev->device->phys_port_cnt; ++port)
+		for (port = 1; port <= cma_dev->device->phys_port_cnt; ++port) {
+			if (listen_id_priv &&
+			    listen_id_priv->cma_dev == cma_dev &&
+			    listen_id_priv->id.port_num == port)
+				continue;
 			if (rdma_port_get_link_layer(cma_dev->device, port) == dev_ll) {
 				if (rdma_node_get_transport(cma_dev->device->node_type) == RDMA_TRANSPORT_IB &&
 				    rdma_port_get_link_layer(cma_dev->device, port) == IB_LINK_LAYER_ETHERNET)
@@ -381,6 +404,7 @@ static int cma_acquire_dev(struct rdma_id_private *id_priv)
 					goto out;
 				}
 			}
+		}
 	}
 
 out:
@@ -1269,7 +1293,7 @@ static int cma_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *ib_event)
 	}
 
 	mutex_lock_nested(&conn_id->handler_mutex, SINGLE_DEPTH_NESTING);
-	ret = cma_acquire_dev(conn_id);
+	ret = cma_acquire_dev(conn_id, listen_id);
 	if (ret)
 		goto err2;
 
@@ -1458,7 +1482,7 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
 		goto out;
 	}
 
-	ret = cma_acquire_dev(conn_id);
+	ret = cma_acquire_dev(conn_id, listen_id);
 	if (ret) {
 		mutex_unlock(&conn_id->handler_mutex);
 		rdma_destroy_id(new_cm_id);
@@ -2027,7 +2051,7 @@ static void addr_handler(int status, struct sockaddr *src_addr,
 		goto out;
 
 	if (!status && !id_priv->cma_dev)
-		status = cma_acquire_dev(id_priv);
+		status = cma_acquire_dev(id_priv, NULL);
 
 	if (status) {
 		if (!cma_comp_exch(id_priv, RDMA_CM_ADDR_RESOLVED,
@@ -2524,7 +2548,7 @@ int rdma_bind_addr(struct rdma_cm_id *id, struct sockaddr *addr)
 		if (ret)
 			goto err1;
 
-		ret = cma_acquire_dev(id_priv);
+		ret = cma_acquire_dev(id_priv, NULL);
 		if (ret)
 			goto err1;
 	}
-- 
cgit 


From 649fb5ec0e5291da4f5e3b6c8eb4fc8c4efbb24f Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Sun, 27 Oct 2013 21:50:45 +0000
Subject: IB/cxgb4: Fix formatting of physical address

Physical addresses may be wider than virtual addresses (e.g. on i386
with PAE) and must not be formatted with %p.

Compile-tested only.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/cxgb4/device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/cxgb4/device.c b/drivers/infiniband/hw/cxgb4/device.c
index 33d2cc6ab562..4a033853312e 100644
--- a/drivers/infiniband/hw/cxgb4/device.c
+++ b/drivers/infiniband/hw/cxgb4/device.c
@@ -602,10 +602,10 @@ static int c4iw_rdev_open(struct c4iw_rdev *rdev)
 	     rdev->lldi.vr->qp.size,
 	     rdev->lldi.vr->cq.start,
 	     rdev->lldi.vr->cq.size);
-	PDBG("udb len 0x%x udb base %p db_reg %p gts_reg %p qpshift %lu "
+	PDBG("udb len 0x%x udb base %llx db_reg %p gts_reg %p qpshift %lu "
 	     "qpmask 0x%x cqshift %lu cqmask 0x%x\n",
 	     (unsigned)pci_resource_len(rdev->lldi.pdev, 2),
-	     (void *)(unsigned long)pci_resource_start(rdev->lldi.pdev, 2),
+	     (u64)pci_resource_start(rdev->lldi.pdev, 2),
 	     rdev->lldi.db_reg,
 	     rdev->lldi.gts_reg,
 	     rdev->qpshift, rdev->qpmask,
-- 
cgit 


From c2bb5628db44735bc0095a8ef8efc0278ba245df Mon Sep 17 00:00:00 2001
From: Erez Shitrit <erezsh@mellanox.com>
Date: Wed, 16 Oct 2013 17:37:47 +0300
Subject: IPoIB: Fix crash in dev_open error flow

If napi has never been enabled when calling ipoib_ib_dev_stop, a
kernel crash occurs, because the verbs layer completion handler
(ipoib_ib_completion) calls napi_schedule unconditionally.

If the napi structure passed in the napi_schedule call has not
been initialized, napi will crash.

The cleanest solution is to simply enable napi before calling
ipoib_ib_dev_stop in the dev_open error flow. (dev_stop then
immediately disables napi).

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/ulp/ipoib/ipoib_ib.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index 196b1d13cbcb..c14f949edcb7 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -685,15 +685,13 @@ int ipoib_ib_dev_open(struct net_device *dev)
 	ret = ipoib_ib_post_receives(dev);
 	if (ret) {
 		ipoib_warn(priv, "ipoib_ib_post_receives returned %d\n", ret);
-		ipoib_ib_dev_stop(dev, 1);
-		return -1;
+		goto dev_stop;
 	}
 
 	ret = ipoib_cm_dev_open(dev);
 	if (ret) {
 		ipoib_warn(priv, "ipoib_cm_dev_open returned %d\n", ret);
-		ipoib_ib_dev_stop(dev, 1);
-		return -1;
+		goto dev_stop;
 	}
 
 	clear_bit(IPOIB_STOP_REAPER, &priv->flags);
@@ -704,6 +702,11 @@ int ipoib_ib_dev_open(struct net_device *dev)
 		napi_enable(&priv->napi);
 
 	return 0;
+dev_stop:
+	if (!test_and_set_bit(IPOIB_FLAG_INITIALIZED, &priv->flags))
+		napi_enable(&priv->napi);
+	ipoib_ib_dev_stop(dev, 1);
+	return -1;
 }
 
 static void ipoib_pkey_dev_check_presence(struct net_device *dev)
-- 
cgit 


From 22252b4e09f19431f82dc26428e0edf697d19a04 Mon Sep 17 00:00:00 2001
From: Tal Alon <talal@mellanox.com>
Date: Wed, 16 Oct 2013 17:37:48 +0300
Subject: IPoIB: Change CM skb memory allocation to be non-atomic during init

Change CM skb memory allocation to use GFP_KERNEL when possible.

During device init there's no need to use GFP_ATOMIC when allocating
memory for the CM skbs -- use GFP_KERNEL instead.

Signed-off-by: Tal Alon <talal@mellanox.com>
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/ulp/ipoib/ipoib_cm.c | 14 +++++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
index 7a3175400b2a..1377f85911c2 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c
@@ -140,7 +140,8 @@ static int ipoib_cm_post_receive_nonsrq(struct net_device *dev,
 static struct sk_buff *ipoib_cm_alloc_rx_skb(struct net_device *dev,
 					     struct ipoib_cm_rx_buf *rx_ring,
 					     int id, int frags,
-					     u64 mapping[IPOIB_CM_RX_SG])
+					     u64 mapping[IPOIB_CM_RX_SG],
+					     gfp_t gfp)
 {
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
 	struct sk_buff *skb;
@@ -164,7 +165,7 @@ static struct sk_buff *ipoib_cm_alloc_rx_skb(struct net_device *dev,
 	}
 
 	for (i = 0; i < frags; i++) {
-		struct page *page = alloc_page(GFP_ATOMIC);
+		struct page *page = alloc_page(gfp);
 
 		if (!page)
 			goto partial_error;
@@ -382,7 +383,8 @@ static int ipoib_cm_nonsrq_init_rx(struct net_device *dev, struct ib_cm_id *cm_i
 
 	for (i = 0; i < ipoib_recvq_size; ++i) {
 		if (!ipoib_cm_alloc_rx_skb(dev, rx->rx_ring, i, IPOIB_CM_RX_SG - 1,
-					   rx->rx_ring[i].mapping)) {
+					   rx->rx_ring[i].mapping,
+					   GFP_KERNEL)) {
 			ipoib_warn(priv, "failed to allocate receive buffer %d\n", i);
 				ret = -ENOMEM;
 				goto err_count;
@@ -639,7 +641,8 @@ void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
 	frags = PAGE_ALIGN(wc->byte_len - min(wc->byte_len,
 					      (unsigned)IPOIB_CM_HEAD_SIZE)) / PAGE_SIZE;
 
-	newskb = ipoib_cm_alloc_rx_skb(dev, rx_ring, wr_id, frags, mapping);
+	newskb = ipoib_cm_alloc_rx_skb(dev, rx_ring, wr_id, frags,
+				       mapping, GFP_ATOMIC);
 	if (unlikely(!newskb)) {
 		/*
 		 * If we can't allocate a new RX buffer, dump
@@ -1556,7 +1559,8 @@ int ipoib_cm_dev_init(struct net_device *dev)
 		for (i = 0; i < ipoib_recvq_size; ++i) {
 			if (!ipoib_cm_alloc_rx_skb(dev, priv->cm.srq_ring, i,
 						   priv->cm.num_frags - 1,
-						   priv->cm.srq_ring[i].mapping)) {
+						   priv->cm.srq_ring[i].mapping,
+						   GFP_KERNEL)) {
 				ipoib_warn(priv, "failed to allocate "
 					   "receive buffer %d\n", i);
 				ipoib_cm_dev_cleanup(dev);
-- 
cgit 


From f47944cc2dba3c7e6f753b81e9f713f4d12bdd5a Mon Sep 17 00:00:00 2001
From: Erez Shitrit <erezsh@mellanox.com>
Date: Wed, 16 Oct 2013 17:37:49 +0300
Subject: IPoIB: Fix deadlock between dev_change_flags() and
 __ipoib_dev_flush()

When ipoib interface is going down it takes all of its children with
it, under mutex.

For each child, dev_change_flags() is called.  That function calls
ipoib_stop() via the ndo, and causes flush of the workqueue.
Sometimes in the workqueue an __ipoib_dev_flush work() is waiting and
when invoked tries to get the same mutex, which leads to a deadlock,
as seen below.

The solution is to switch to rw-sem instead of mutex.

The deadlock:
[11028.165303]  [<ffffffff812b0977>] ? vgacon_scroll+0x107/0x2e0
[11028.171844]  [<ffffffff814eaac5>] schedule_timeout+0x215/0x2e0
[11028.178465]  [<ffffffff8105a5c3>] ? perf_event_task_sched_out+0x33/0x80
[11028.185962]  [<ffffffff814ea743>] wait_for_common+0x123/0x180
[11028.192491]  [<ffffffff8105fa40>] ? default_wake_function+0x0/0x20
[11028.199504]  [<ffffffff814ea85d>] wait_for_completion+0x1d/0x20
[11028.206224]  [<ffffffff8108b4f1>] flush_cpu_workqueue+0x61/0x90
[11028.212948]  [<ffffffff8108b5a0>] ? wq_barrier_func+0x0/0x20
[11028.219375]  [<ffffffff8108bfc4>] flush_workqueue+0x54/0x80
[11028.225712]  [<ffffffffa05a0576>] ipoib_mcast_stop_thread+0x66/0x90 [ib_ipoib]
[11028.233988]  [<ffffffffa059ccea>] ipoib_ib_dev_down+0x6a/0x100 [ib_ipoib]
[11028.241678]  [<ffffffffa059849a>] ipoib_stop+0x8a/0x140 [ib_ipoib]
[11028.248692]  [<ffffffff8142adf1>] dev_close+0x71/0xc0
[11028.254447]  [<ffffffff8142a631>] dev_change_flags+0xa1/0x1d0
[11028.261062]  [<ffffffffa059851b>] ipoib_stop+0x10b/0x140 [ib_ipoib]
[11028.268172]  [<ffffffff8142adf1>] dev_close+0x71/0xc0
[11028.273922]  [<ffffffff8142a631>] dev_change_flags+0xa1/0x1d0
[11028.280452]  [<ffffffff8148f20b>] devinet_ioctl+0x5eb/0x6a0
[11028.286786]  [<ffffffff814903b8>] inet_ioctl+0x88/0xa0
[11028.292633]  [<ffffffff8141591a>] sock_ioctl+0x7a/0x280
[11028.298576]  [<ffffffff81189012>] vfs_ioctl+0x22/0xa0
[11028.304326]  [<ffffffff81140540>] ? unmap_region+0x110/0x130
[11028.310756]  [<ffffffff811891b4>] do_vfs_ioctl+0x84/0x580
[11028.316897]  [<ffffffff81189731>] sys_ioctl+0x81/0xa0

and

11028.017533]  [<ffffffff8105a5c3>] ? perf_event_task_sched_out+0x33/0x80
[11028.025030]  [<ffffffff8100bb8e>] ? apic_timer_interrupt+0xe/0x20
[11028.031945]  [<ffffffff814eb2ae>] __mutex_lock_slowpath+0x13e/0x180
[11028.039053]  [<ffffffff814eb14b>] mutex_lock+0x2b/0x50
[11028.044910]  [<ffffffffa059f7e7>] __ipoib_ib_dev_flush+0x37/0x210 [ib_ipoib]
[11028.052894]  [<ffffffffa059fa00>] ? ipoib_ib_dev_flush_light+0x0/0x20 [ib_ipoib]
[11028.061363]  [<ffffffffa059fa17>] ipoib_ib_dev_flush_light+0x17/0x20 [ib_ipoib]
[11028.069738]  [<ffffffff8108b120>] worker_thread+0x170/0x2a0
[11028.076068]  [<ffffffff81090990>] ? autoremove_wake_function+0x0/0x40
[11028.083374]  [<ffffffff8108afb0>] ? worker_thread+0x0/0x2a0
[11028.089709]  [<ffffffff81090626>] kthread+0x96/0xa0
[11028.095266]  [<ffffffff8100c0ca>] child_rip+0xa/0x20
[11028.100921]  [<ffffffff81090590>] ? kthread+0x0/0xa0
[11028.106573]  [<ffffffff8100c0c0>] ? child_rip+0x0/0x20
[11028.112423] INFO: task ifconfig:23640 blocked for more than 120 seconds.

Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/ulp/ipoib/ipoib.h         |  2 +-
 drivers/infiniband/ulp/ipoib/ipoib_ib.c      |  4 ++--
 drivers/infiniband/ulp/ipoib/ipoib_main.c    | 10 +++++-----
 drivers/infiniband/ulp/ipoib/ipoib_netlink.c |  4 ++--
 drivers/infiniband/ulp/ipoib/ipoib_vlan.c    | 10 ++++++----
 5 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index eb71aaa26a9a..ec9190eff09c 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -299,7 +299,7 @@ struct ipoib_dev_priv {
 
 	unsigned long flags;
 
-	struct mutex vlan_mutex;
+	struct rw_semaphore vlan_rwsem;
 
 	struct rb_root  path_tree;
 	struct list_head path_list;
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index c14f949edcb7..01594de9b11d 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -977,7 +977,7 @@ static void __ipoib_ib_dev_flush(struct ipoib_dev_priv *priv,
 	u16 new_index;
 	int result;
 
-	mutex_lock(&priv->vlan_mutex);
+	down_read(&priv->vlan_rwsem);
 
 	/*
 	 * Flush any child interfaces too -- they might be up even if
@@ -986,7 +986,7 @@ static void __ipoib_ib_dev_flush(struct ipoib_dev_priv *priv,
 	list_for_each_entry(cpriv, &priv->child_intfs, list)
 		__ipoib_ib_dev_flush(cpriv, level);
 
-	mutex_unlock(&priv->vlan_mutex);
+	up_read(&priv->vlan_rwsem);
 
 	if (!test_bit(IPOIB_FLAG_INITIALIZED, &priv->flags)) {
 		/* for non-child devices must check/update the pkey value here */
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index 82cec1af902c..dcb50cef0bda 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -119,7 +119,7 @@ int ipoib_open(struct net_device *dev)
 		struct ipoib_dev_priv *cpriv;
 
 		/* Bring up any child interfaces too */
-		mutex_lock(&priv->vlan_mutex);
+		down_read(&priv->vlan_rwsem);
 		list_for_each_entry(cpriv, &priv->child_intfs, list) {
 			int flags;
 
@@ -129,7 +129,7 @@ int ipoib_open(struct net_device *dev)
 
 			dev_change_flags(cpriv->dev, flags | IFF_UP);
 		}
-		mutex_unlock(&priv->vlan_mutex);
+		up_read(&priv->vlan_rwsem);
 	}
 
 	netif_start_queue(dev);
@@ -162,7 +162,7 @@ static int ipoib_stop(struct net_device *dev)
 		struct ipoib_dev_priv *cpriv;
 
 		/* Bring down any child interfaces too */
-		mutex_lock(&priv->vlan_mutex);
+		down_read(&priv->vlan_rwsem);
 		list_for_each_entry(cpriv, &priv->child_intfs, list) {
 			int flags;
 
@@ -172,7 +172,7 @@ static int ipoib_stop(struct net_device *dev)
 
 			dev_change_flags(cpriv->dev, flags & ~IFF_UP);
 		}
-		mutex_unlock(&priv->vlan_mutex);
+		up_read(&priv->vlan_rwsem);
 	}
 
 	return 0;
@@ -1372,7 +1372,7 @@ void ipoib_setup(struct net_device *dev)
 
 	spin_lock_init(&priv->lock);
 
-	mutex_init(&priv->vlan_mutex);
+	init_rwsem(&priv->vlan_rwsem);
 
 	INIT_LIST_HEAD(&priv->path_list);
 	INIT_LIST_HEAD(&priv->child_intfs);
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_netlink.c b/drivers/infiniband/ulp/ipoib/ipoib_netlink.c
index f81abe16cf09..c29b5c838833 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_netlink.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_netlink.c
@@ -142,10 +142,10 @@ static void ipoib_unregister_child_dev(struct net_device *dev, struct list_head
 	priv = netdev_priv(dev);
 	ppriv = netdev_priv(priv->parent);
 
-	mutex_lock(&ppriv->vlan_mutex);
+	down_write(&ppriv->vlan_rwsem);
 	unregister_netdevice_queue(dev, head);
 	list_del(&priv->list);
-	mutex_unlock(&ppriv->vlan_mutex);
+	up_write(&ppriv->vlan_rwsem);
 }
 
 static size_t ipoib_get_size(const struct net_device *dev)
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
index 8292554bccb5..9fad7b5ac8b9 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_vlan.c
@@ -140,7 +140,7 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
 	if (!rtnl_trylock())
 		return restart_syscall();
 
-	mutex_lock(&ppriv->vlan_mutex);
+	down_write(&ppriv->vlan_rwsem);
 
 	/*
 	 * First ensure this isn't a duplicate. We check the parent device and
@@ -163,7 +163,7 @@ int ipoib_vlan_add(struct net_device *pdev, unsigned short pkey)
 	result = __ipoib_vlan_add(ppriv, priv, pkey, IPOIB_LEGACY_CHILD);
 
 out:
-	mutex_unlock(&ppriv->vlan_mutex);
+	up_write(&ppriv->vlan_rwsem);
 
 	if (result)
 		free_netdev(priv->dev);
@@ -185,7 +185,8 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey)
 
 	if (!rtnl_trylock())
 		return restart_syscall();
-	mutex_lock(&ppriv->vlan_mutex);
+
+	down_write(&ppriv->vlan_rwsem);
 	list_for_each_entry_safe(priv, tpriv, &ppriv->child_intfs, list) {
 		if (priv->pkey == pkey &&
 		    priv->child_type == IPOIB_LEGACY_CHILD) {
@@ -195,7 +196,8 @@ int ipoib_vlan_delete(struct net_device *pdev, unsigned short pkey)
 			break;
 		}
 	}
-	mutex_unlock(&ppriv->vlan_mutex);
+	up_write(&ppriv->vlan_rwsem);
+
 	rtnl_unlock();
 
 	if (dev) {
-- 
cgit 


From aede25011fddf559dcf216d86975187e3f64b109 Mon Sep 17 00:00:00 2001
From: Erez Shitrit <erezsh@mellanox.com>
Date: Wed, 16 Oct 2013 17:37:50 +0300
Subject: IPoIB: Avoid flushing the driver workqueue on dev_down

The driver should not flush the whole workqueue when only one work (the
pkey poll one) needs to be cancelled.  Use cancel_delayed_work_sync()
instead.

Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/ulp/ipoib/ipoib_ib.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index 01594de9b11d..ff64b1629dbf 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -749,10 +749,8 @@ int ipoib_ib_dev_down(struct net_device *dev, int flush)
 	if (!test_bit(IPOIB_PKEY_ASSIGNED, &priv->flags)) {
 		mutex_lock(&pkey_mutex);
 		set_bit(IPOIB_PKEY_STOP, &priv->flags);
-		cancel_delayed_work(&priv->pkey_poll_task);
+		cancel_delayed_work_sync(&priv->pkey_poll_task);
 		mutex_unlock(&pkey_mutex);
-		if (flush)
-			flush_workqueue(ipoib_workqueue);
 	}
 
 	ipoib_mcast_stop_thread(dev, flush);
-- 
cgit 


From a9c8ba588495547d1598f1b83d5eb086bef65e4b Mon Sep 17 00:00:00 2001
From: Erez Shitrit <erezsh@mellanox.com>
Date: Wed, 16 Oct 2013 17:37:51 +0300
Subject: IPoIB: Fix usage of uninitialized multicast objects

The driver should avoid calling ib_sa_free_multicast on the mcast->mc
object until it finishes its initialization state.  Otherwise we can
crash when ipoib_mcast_dev_flush() attempts to use the uninitialized
multicast object.

Instead, only call wait_for_completion() for multicast entries that
started the join process, meaning that ib_sa_join_multicast() finished.

Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/ulp/ipoib/ipoib.h           |  2 ++
 drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 21 +++++++++++++++++----
 2 files changed, 19 insertions(+), 4 deletions(-)

diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index ec9190eff09c..c639f90cfda4 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -101,6 +101,7 @@ enum {
 	IPOIB_MCAST_FLAG_SENDONLY = 1,
 	IPOIB_MCAST_FLAG_BUSY	  = 2,	/* joining or already joined */
 	IPOIB_MCAST_FLAG_ATTACHED = 3,
+	IPOIB_MCAST_JOIN_STARTED  = 4,
 
 	MAX_SEND_CQE		  = 16,
 	IPOIB_CM_COPYBREAK	  = 256,
@@ -151,6 +152,7 @@ struct ipoib_mcast {
 	struct sk_buff_head pkt_queue;
 
 	struct net_device *dev;
+	struct completion done;
 };
 
 struct ipoib_rx_buf {
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index cecb98a4c662..780a2a0df41f 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -386,8 +386,10 @@ static int ipoib_mcast_join_complete(int status,
 			mcast->mcmember.mgid.raw, status);
 
 	/* We trap for port events ourselves. */
-	if (status == -ENETRESET)
-		return 0;
+	if (status == -ENETRESET) {
+		status = 0;
+		goto out;
+	}
 
 	if (!status)
 		status = ipoib_mcast_join_finish(mcast, &multicast->rec);
@@ -407,7 +409,8 @@ static int ipoib_mcast_join_complete(int status,
 		if (mcast == priv->broadcast)
 			queue_work(ipoib_workqueue, &priv->carrier_on_task);
 
-		return 0;
+		status = 0;
+		goto out;
 	}
 
 	if (mcast->logcount++ < 20) {
@@ -434,7 +437,8 @@ static int ipoib_mcast_join_complete(int status,
 				   mcast->backoff * HZ);
 	spin_unlock_irq(&priv->lock);
 	mutex_unlock(&mcast_mutex);
-
+out:
+	complete(&mcast->done);
 	return status;
 }
 
@@ -484,11 +488,15 @@ static void ipoib_mcast_join(struct net_device *dev, struct ipoib_mcast *mcast,
 	}
 
 	set_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags);
+	init_completion(&mcast->done);
+	set_bit(IPOIB_MCAST_JOIN_STARTED, &mcast->flags);
+
 	mcast->mc = ib_sa_join_multicast(&ipoib_sa_client, priv->ca, priv->port,
 					 &rec, comp_mask, GFP_KERNEL,
 					 ipoib_mcast_join_complete, mcast);
 	if (IS_ERR(mcast->mc)) {
 		clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags);
+		complete(&mcast->done);
 		ret = PTR_ERR(mcast->mc);
 		ipoib_warn(priv, "ib_sa_join_multicast failed, status %d\n", ret);
 
@@ -751,6 +759,11 @@ void ipoib_mcast_dev_flush(struct net_device *dev)
 
 	spin_unlock_irqrestore(&priv->lock, flags);
 
+	/* seperate between the wait to the leave*/
+	list_for_each_entry_safe(mcast, tmcast, &remove_list, list)
+		if (test_bit(IPOIB_MCAST_JOIN_STARTED, &mcast->flags))
+			wait_for_completion(&mcast->done);
+
 	list_for_each_entry_safe(mcast, tmcast, &remove_list, list) {
 		ipoib_mcast_leave(dev, mcast);
 		ipoib_mcast_free(mcast);
-- 
cgit 


From a39c52ab887fdcefae1d7f467fb0621f30833c84 Mon Sep 17 00:00:00 2001
From: Erez Shitrit <erezsh@mellanox.com>
Date: Wed, 16 Oct 2013 17:37:52 +0300
Subject: IPoIB: Add path query flushing in ipoib_ib_dev_cleanup

The path_rec_completion() callback may be invoked asynchronously even
at the middle of "driver uninit" process.  This can lead to scheduling
a task that tries to touch members of the priv object that are no
longer valid.  For example the function cm_create_tx_qp can attempt to
create qp with no valid priv->pd object.

The following crash is one of the results:
RIP: 0010:[<ffffffffa021bb47>]  [<ffffffffa021bb47>] ipoib_cm_create_tx_qp+0x57/0x90 [ib_ipoib]
Process ipoib (pid: 5916, threadinfo ffff8803786e4000, task ffff8804150e1500)
Stack:
Call Trace:
[<ffffffff81309ef0>] ? get_random_bytes+0x20/0x30
[<ffffffffa021be2a>] ipoib_cm_tx_init+0xca/0x340 [ib_ipoib]
[<ffffffffa021f765>] ipoib_cm_tx_start+0x215/0x3f0 [ib_ipoib]
[<ffffffffa021f550>] ? ipoib_cm_tx_start+0x0/0x3f0 [ib_ipoib]
[<ffffffff8108b2b0>] worker_thread+0x170/0x2a0
[<ffffffff81090bf0>] ? autoremove_wake_function+0x0/0x40
[<ffffffff8108b140>] ? worker_thread+0x0/0x2a0
[<ffffffff81090886>] kthread+0x96/0xa0
[<ffffffff8100c14a>] child_rip+0xa/0x20
[<ffffffff810907f0>] ? kthread+0x0/0xa0
[<ffffffff8100c140>] ? child_rip+0x0/0x20

Fix that by flushing all pending path queries at this point.

Signed-off-by: Alex Markuze <markuze@mellanox.com>
Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/ulp/ipoib/ipoib_ib.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_ib.c b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
index ff64b1629dbf..6a7003ddb0be 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_ib.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_ib.c
@@ -1082,6 +1082,11 @@ void ipoib_ib_dev_cleanup(struct net_device *dev)
 	struct ipoib_dev_priv *priv = netdev_priv(dev);
 
 	ipoib_dbg(priv, "cleaning up ib_dev\n");
+	/*
+	 * We must make sure there are no more (path) completions
+	 * that may wish to touch priv fields that are no longer valid
+	 */
+	ipoib_flush_paths(dev);
 
 	ipoib_mcast_stop_thread(dev, 1);
 	ipoib_mcast_dev_flush(dev);
-- 
cgit 


From 94232d9ce81755c4b0c1536648442383442b27e0 Mon Sep 17 00:00:00 2001
From: Erez Shitrit <erezsh@mellanox.com>
Date: Wed, 16 Oct 2013 17:37:53 +0300
Subject: IPoIB: Start multicast join process only on active ports

The driver starts the mcast_join task whenever the netdev interface is
UP without relation to the underlying IB port state.

Until the port state is ACTIVE all the join requests are irrelevant,
and the IB core returns -EINVAL. So the user will see errors such as:
"multicast join failed for ff12:401b:... , status -22".

Instead, have ipoib_mcast_join_task() return when the port is not active.

It will be called again when the port state is changed and the
low-level driver triggers the IB_EVENT_PORT_ACTIVE event or the
IB_EVENT_CLIENT_REREGISTER event.

Signed-off-by: Erez Shitrit <erezsh@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
index 780a2a0df41f..d4e005720d01 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c
@@ -518,10 +518,18 @@ void ipoib_mcast_join_task(struct work_struct *work)
 	struct ipoib_dev_priv *priv =
 		container_of(work, struct ipoib_dev_priv, mcast_task.work);
 	struct net_device *dev = priv->dev;
+	struct ib_port_attr port_attr;
 
 	if (!test_bit(IPOIB_MCAST_RUN, &priv->flags))
 		return;
 
+	if (ib_query_port(priv->ca, priv->port, &port_attr) ||
+	    port_attr.state != IB_PORT_ACTIVE) {
+		ipoib_dbg(priv, "port state is not ACTIVE (state = %d) suspending join task\n",
+			  port_attr.state);
+		return;
+	}
+
 	if (ib_query_gid(priv->ca, priv->port, 0, &priv->local_gid))
 		ipoib_warn(priv, "ib_query_gid() failed\n");
 	else
-- 
cgit 


From 7f1a38671c55b5cbda77dbbda8b4651224c50cd7 Mon Sep 17 00:00:00 2001
From: Michal Schmidt <mschmidt@redhat.com>
Date: Wed, 21 Aug 2013 18:50:22 +0200
Subject: IPoIB: lower NAPI weight

Since commit 82dc3c63c692 ("net: introduce NAPI_POLL_WEIGHT")
netif_napi_add() produces an error message if a NAPI poll weight
greater than 64 is requested.

Use the standard NAPI weight.

Signed-off-by: Michal Schmidt <mschmidt@redhat.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/ulp/ipoib/ipoib_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index dcb50cef0bda..d64ed05fb082 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -1350,7 +1350,7 @@ void ipoib_setup(struct net_device *dev)
 
 	ipoib_set_ethtool_ops(dev);
 
-	netif_napi_add(dev, &priv->napi, ipoib_poll, 100);
+	netif_napi_add(dev, &priv->napi, ipoib_poll, NAPI_POLL_WEIGHT);
 
 	dev->watchdog_timeo	 = HZ;
 
-- 
cgit 


From 6b7d103c1b11346499063d9167832596de754ea4 Mon Sep 17 00:00:00 2001
From: Latchesar Ionkov <lucho@ionkov.net>
Date: Sat, 19 Oct 2013 15:55:41 -0600
Subject: IB/core: Pass imm_data from ib_uverbs_send_wr to ib_send_wr correctly

Currently, we don't copy the immediate data from the userspace struct
to the kernel one when UD messages are being sent.

This patch makes sure that the immediate data is set correctly.

Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/core/uverbs_cmd.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 2f0f01b70e3b..5bb2a82d52e7 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -2128,6 +2128,9 @@ ssize_t ib_uverbs_post_send(struct ib_uverbs_file *file,
 			}
 			next->wr.ud.remote_qpn  = user_wr->wr.ud.remote_qpn;
 			next->wr.ud.remote_qkey = user_wr->wr.ud.remote_qkey;
+			if (next->opcode == IB_WR_SEND_WITH_IMM)
+				next->ex.imm_data =
+					(__be32 __force) user_wr->ex.imm_data;
 		} else {
 			switch (next->opcode) {
 			case IB_WR_RDMA_WRITE_WITH_IMM:
-- 
cgit 


From 5476781bb9e273d81a4192be47101811e987114f Mon Sep 17 00:00:00 2001
From: Mathias Krause <minipli@googlemail.com>
Date: Mon, 30 Sep 2013 22:03:54 +0200
Subject: IB/netlink: Remove superfluous RDMA_NL_GET_OP() masking

'op' is the already RDMA_NL_GET_OP() masked 'type'.  No need to mask it again.

Signed-off-by: Mathias Krause <minipli@googlemail.com>
Reviewed-by: Yann Droneaud <ydroneaud@opteya.com>
Acked-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/core/netlink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/core/netlink.c b/drivers/infiniband/core/netlink.c
index da06abde9e0d..a1e9cba84944 100644
--- a/drivers/infiniband/core/netlink.c
+++ b/drivers/infiniband/core/netlink.c
@@ -148,7 +148,7 @@ static int ibnl_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
 	list_for_each_entry(client, &client_list, list) {
 		if (client->index == index) {
 			if (op < 0 || op >= client->nops ||
-			    !client->cb_table[RDMA_NL_GET_OP(op)].dump)
+			    !client->cb_table[op].dump)
 				return -EINVAL;
 
 			{
-- 
cgit 


From 51ee86a4af639e4ee8953dd02ad8a766c40f46a1 Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Wed, 23 Oct 2013 09:53:13 +0300
Subject: IB/mlx5: Fix check of number of entries in create CQ

Verify that the value is non negative before rounding up to power of 2.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/mlx5/cq.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c
index 344ab03948a3..e7c64c57d699 100644
--- a/drivers/infiniband/hw/mlx5/cq.c
+++ b/drivers/infiniband/hw/mlx5/cq.c
@@ -653,8 +653,11 @@ struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev, int entries,
 	int eqn;
 	int err;
 
+	if (entries < 0)
+		return ERR_PTR(-EINVAL);
+
 	entries = roundup_pow_of_two(entries + 1);
-	if (entries < 1 || entries > dev->mdev.caps.max_cqes)
+	if (entries > dev->mdev.caps.max_cqes)
 		return ERR_PTR(-EINVAL);
 
 	cq = kzalloc(sizeof(*cq), GFP_KERNEL);
-- 
cgit 


From 746b5583c1a48a837f4891adaff5e09d61b204a6 Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Wed, 23 Oct 2013 09:53:14 +0300
Subject: IB/mlx5: Multithreaded create MR

Use asynchronous commands to execute up to eight concurrent create MR
commands. This is to fill memory caches faster so we keep consuming
from there.  Also, increase timeout for shrinking caches to five
minutes.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/mlx5/main.c                 |   3 +-
 drivers/infiniband/hw/mlx5/mlx5_ib.h              |   6 +
 drivers/infiniband/hw/mlx5/mr.c                   | 163 +++++++++++++++++-----
 drivers/infiniband/hw/mlx5/qp.c                   |   4 +-
 drivers/net/ethernet/mellanox/mlx5/core/cmd.c     | 106 ++++++++++----
 drivers/net/ethernet/mellanox/mlx5/core/debugfs.c |   8 +-
 drivers/net/ethernet/mellanox/mlx5/core/mr.c      |  32 +++--
 include/linux/mlx5/driver.h                       |  17 ++-
 8 files changed, 255 insertions(+), 84 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index b1a6cb3a2809..306534109627 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -745,7 +745,8 @@ static int alloc_pa_mkey(struct mlx5_ib_dev *dev, u32 *key, u32 pdn)
 	seg->qpn_mkey7_0 = cpu_to_be32(0xffffff << 8);
 	seg->start_addr = 0;
 
-	err = mlx5_core_create_mkey(&dev->mdev, &mr, in, sizeof(*in));
+	err = mlx5_core_create_mkey(&dev->mdev, &mr, in, sizeof(*in),
+				    NULL, NULL, NULL);
 	if (err) {
 		mlx5_ib_warn(dev, "failed to create mkey, %d\n", err);
 		goto err_in;
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index 836be9157242..4c134d93d4fc 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -262,6 +262,9 @@ struct mlx5_ib_mr {
 	int			npages;
 	struct completion	done;
 	enum ib_wc_status	status;
+	struct mlx5_ib_dev     *dev;
+	struct mlx5_create_mkey_mbox_out out;
+	unsigned long		start;
 };
 
 struct mlx5_ib_fast_reg_page_list {
@@ -323,6 +326,7 @@ struct mlx5_cache_ent {
 	struct mlx5_ib_dev     *dev;
 	struct work_struct	work;
 	struct delayed_work	dwork;
+	int			pending;
 };
 
 struct mlx5_mr_cache {
@@ -358,6 +362,8 @@ struct mlx5_ib_dev {
 	spinlock_t			mr_lock;
 	struct mlx5_ib_resources	devr;
 	struct mlx5_mr_cache		cache;
+	struct timer_list		delay_timer;
+	int				fill_delay;
 };
 
 static inline struct mlx5_ib_cq *to_mibcq(struct mlx5_core_cq *mcq)
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 3453580b1eb2..d7f202290747 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -35,11 +35,13 @@
 #include <linux/random.h>
 #include <linux/debugfs.h>
 #include <linux/export.h>
+#include <linux/delay.h>
 #include <rdma/ib_umem.h>
 #include "mlx5_ib.h"
 
 enum {
 	DEF_CACHE_SIZE	= 10,
+	MAX_PENDING_REG_MR = 8,
 };
 
 enum {
@@ -63,6 +65,57 @@ static int order2idx(struct mlx5_ib_dev *dev, int order)
 		return order - cache->ent[0].order;
 }
 
+static void reg_mr_callback(int status, void *context)
+{
+	struct mlx5_ib_mr *mr = context;
+	struct mlx5_ib_dev *dev = mr->dev;
+	struct mlx5_mr_cache *cache = &dev->cache;
+	int c = order2idx(dev, mr->order);
+	struct mlx5_cache_ent *ent = &cache->ent[c];
+	u8 key;
+	unsigned long delta = jiffies - mr->start;
+	unsigned long index;
+	unsigned long flags;
+
+	index = find_last_bit(&delta, 8 * sizeof(delta));
+	if (index == 64)
+		index = 0;
+
+	spin_lock_irqsave(&ent->lock, flags);
+	ent->pending--;
+	spin_unlock_irqrestore(&ent->lock, flags);
+	if (status) {
+		mlx5_ib_warn(dev, "async reg mr failed. status %d\n", status);
+		kfree(mr);
+		dev->fill_delay = 1;
+		mod_timer(&dev->delay_timer, jiffies + HZ);
+		return;
+	}
+
+	if (mr->out.hdr.status) {
+		mlx5_ib_warn(dev, "failed - status %d, syndorme 0x%x\n",
+			     mr->out.hdr.status,
+			     be32_to_cpu(mr->out.hdr.syndrome));
+		kfree(mr);
+		dev->fill_delay = 1;
+		mod_timer(&dev->delay_timer, jiffies + HZ);
+		return;
+	}
+
+	spin_lock_irqsave(&dev->mdev.priv.mkey_lock, flags);
+	key = dev->mdev.priv.mkey_key++;
+	spin_unlock_irqrestore(&dev->mdev.priv.mkey_lock, flags);
+	mr->mmr.key = mlx5_idx_to_mkey(be32_to_cpu(mr->out.mkey) & 0xffffff) | key;
+
+	cache->last_add = jiffies;
+
+	spin_lock_irqsave(&ent->lock, flags);
+	list_add_tail(&mr->list, &ent->head);
+	ent->cur++;
+	ent->size++;
+	spin_unlock_irqrestore(&ent->lock, flags);
+}
+
 static int add_keys(struct mlx5_ib_dev *dev, int c, int num)
 {
 	struct mlx5_mr_cache *cache = &dev->cache;
@@ -78,36 +131,39 @@ static int add_keys(struct mlx5_ib_dev *dev, int c, int num)
 		return -ENOMEM;
 
 	for (i = 0; i < num; i++) {
+		if (ent->pending >= MAX_PENDING_REG_MR) {
+			err = -EAGAIN;
+			break;
+		}
+
 		mr = kzalloc(sizeof(*mr), GFP_KERNEL);
 		if (!mr) {
 			err = -ENOMEM;
-			goto out;
+			break;
 		}
 		mr->order = ent->order;
 		mr->umred = 1;
+		mr->dev = dev;
 		in->seg.status = 1 << 6;
 		in->seg.xlt_oct_size = cpu_to_be32((npages + 1) / 2);
 		in->seg.qpn_mkey7_0 = cpu_to_be32(0xffffff << 8);
 		in->seg.flags = MLX5_ACCESS_MODE_MTT | MLX5_PERM_UMR_EN;
 		in->seg.log2_page_size = 12;
 
+		spin_lock_irq(&ent->lock);
+		ent->pending++;
+		spin_unlock_irq(&ent->lock);
+		mr->start = jiffies;
 		err = mlx5_core_create_mkey(&dev->mdev, &mr->mmr, in,
-					    sizeof(*in));
+					    sizeof(*in), reg_mr_callback,
+					    mr, &mr->out);
 		if (err) {
 			mlx5_ib_warn(dev, "create mkey failed %d\n", err);
 			kfree(mr);
-			goto out;
+			break;
 		}
-		cache->last_add = jiffies;
-
-		spin_lock(&ent->lock);
-		list_add_tail(&mr->list, &ent->head);
-		ent->cur++;
-		ent->size++;
-		spin_unlock(&ent->lock);
 	}
 
-out:
 	kfree(in);
 	return err;
 }
@@ -121,16 +177,16 @@ static void remove_keys(struct mlx5_ib_dev *dev, int c, int num)
 	int i;
 
 	for (i = 0; i < num; i++) {
-		spin_lock(&ent->lock);
+		spin_lock_irq(&ent->lock);
 		if (list_empty(&ent->head)) {
-			spin_unlock(&ent->lock);
+			spin_unlock_irq(&ent->lock);
 			return;
 		}
 		mr = list_first_entry(&ent->head, struct mlx5_ib_mr, list);
 		list_del(&mr->list);
 		ent->cur--;
 		ent->size--;
-		spin_unlock(&ent->lock);
+		spin_unlock_irq(&ent->lock);
 		err = mlx5_core_destroy_mkey(&dev->mdev, &mr->mmr);
 		if (err)
 			mlx5_ib_warn(dev, "failed destroy mkey\n");
@@ -162,9 +218,13 @@ static ssize_t size_write(struct file *filp, const char __user *buf,
 		return -EINVAL;
 
 	if (var > ent->size) {
-		err = add_keys(dev, c, var - ent->size);
-		if (err)
-			return err;
+		do {
+			err = add_keys(dev, c, var - ent->size);
+			if (err && err != -EAGAIN)
+				return err;
+
+			usleep_range(3000, 5000);
+		} while (err);
 	} else if (var < ent->size) {
 		remove_keys(dev, c, ent->size - var);
 	}
@@ -280,23 +340,37 @@ static void __cache_work_func(struct mlx5_cache_ent *ent)
 	struct mlx5_ib_dev *dev = ent->dev;
 	struct mlx5_mr_cache *cache = &dev->cache;
 	int i = order2idx(dev, ent->order);
+	int err;
 
 	if (cache->stopped)
 		return;
 
 	ent = &dev->cache.ent[i];
-	if (ent->cur < 2 * ent->limit) {
-		add_keys(dev, i, 1);
-		if (ent->cur < 2 * ent->limit)
-			queue_work(cache->wq, &ent->work);
+	if (ent->cur < 2 * ent->limit && !dev->fill_delay) {
+		err = add_keys(dev, i, 1);
+		if (ent->cur < 2 * ent->limit) {
+			if (err == -EAGAIN) {
+				mlx5_ib_dbg(dev, "returned eagain, order %d\n",
+					    i + 2);
+				queue_delayed_work(cache->wq, &ent->dwork,
+						   msecs_to_jiffies(3));
+			} else if (err) {
+				mlx5_ib_warn(dev, "command failed order %d, err %d\n",
+					     i + 2, err);
+				queue_delayed_work(cache->wq, &ent->dwork,
+						   msecs_to_jiffies(1000));
+			} else {
+				queue_work(cache->wq, &ent->work);
+			}
+		}
 	} else if (ent->cur > 2 * ent->limit) {
 		if (!someone_adding(cache) &&
-		    time_after(jiffies, cache->last_add + 60 * HZ)) {
+		    time_after(jiffies, cache->last_add + 300 * HZ)) {
 			remove_keys(dev, i, 1);
 			if (ent->cur > ent->limit)
 				queue_work(cache->wq, &ent->work);
 		} else {
-			queue_delayed_work(cache->wq, &ent->dwork, 60 * HZ);
+			queue_delayed_work(cache->wq, &ent->dwork, 300 * HZ);
 		}
 	}
 }
@@ -336,18 +410,18 @@ static struct mlx5_ib_mr *alloc_cached_mr(struct mlx5_ib_dev *dev, int order)
 
 		mlx5_ib_dbg(dev, "order %d, cache index %d\n", ent->order, i);
 
-		spin_lock(&ent->lock);
+		spin_lock_irq(&ent->lock);
 		if (!list_empty(&ent->head)) {
 			mr = list_first_entry(&ent->head, struct mlx5_ib_mr,
 					      list);
 			list_del(&mr->list);
 			ent->cur--;
-			spin_unlock(&ent->lock);
+			spin_unlock_irq(&ent->lock);
 			if (ent->cur < ent->limit)
 				queue_work(cache->wq, &ent->work);
 			break;
 		}
-		spin_unlock(&ent->lock);
+		spin_unlock_irq(&ent->lock);
 
 		queue_work(cache->wq, &ent->work);
 
@@ -374,12 +448,12 @@ static void free_cached_mr(struct mlx5_ib_dev *dev, struct mlx5_ib_mr *mr)
 		return;
 	}
 	ent = &cache->ent[c];
-	spin_lock(&ent->lock);
+	spin_lock_irq(&ent->lock);
 	list_add_tail(&mr->list, &ent->head);
 	ent->cur++;
 	if (ent->cur > 2 * ent->limit)
 		shrink = 1;
-	spin_unlock(&ent->lock);
+	spin_unlock_irq(&ent->lock);
 
 	if (shrink)
 		queue_work(cache->wq, &ent->work);
@@ -394,16 +468,16 @@ static void clean_keys(struct mlx5_ib_dev *dev, int c)
 
 	cancel_delayed_work(&ent->dwork);
 	while (1) {
-		spin_lock(&ent->lock);
+		spin_lock_irq(&ent->lock);
 		if (list_empty(&ent->head)) {
-			spin_unlock(&ent->lock);
+			spin_unlock_irq(&ent->lock);
 			return;
 		}
 		mr = list_first_entry(&ent->head, struct mlx5_ib_mr, list);
 		list_del(&mr->list);
 		ent->cur--;
 		ent->size--;
-		spin_unlock(&ent->lock);
+		spin_unlock_irq(&ent->lock);
 		err = mlx5_core_destroy_mkey(&dev->mdev, &mr->mmr);
 		if (err)
 			mlx5_ib_warn(dev, "failed destroy mkey\n");
@@ -464,6 +538,13 @@ static void mlx5_mr_cache_debugfs_cleanup(struct mlx5_ib_dev *dev)
 	debugfs_remove_recursive(dev->cache.root);
 }
 
+static void delay_time_func(unsigned long ctx)
+{
+	struct mlx5_ib_dev *dev = (struct mlx5_ib_dev *)ctx;
+
+	dev->fill_delay = 0;
+}
+
 int mlx5_mr_cache_init(struct mlx5_ib_dev *dev)
 {
 	struct mlx5_mr_cache *cache = &dev->cache;
@@ -479,6 +560,7 @@ int mlx5_mr_cache_init(struct mlx5_ib_dev *dev)
 		return -ENOMEM;
 	}
 
+	setup_timer(&dev->delay_timer, delay_time_func, (unsigned long)dev);
 	for (i = 0; i < MAX_MR_CACHE_ENTRIES; i++) {
 		INIT_LIST_HEAD(&cache->ent[i].head);
 		spin_lock_init(&cache->ent[i].lock);
@@ -522,6 +604,7 @@ int mlx5_mr_cache_cleanup(struct mlx5_ib_dev *dev)
 		clean_keys(dev, i);
 
 	destroy_workqueue(dev->cache.wq);
+	del_timer_sync(&dev->delay_timer);
 
 	return 0;
 }
@@ -551,7 +634,8 @@ struct ib_mr *mlx5_ib_get_dma_mr(struct ib_pd *pd, int acc)
 	seg->qpn_mkey7_0 = cpu_to_be32(0xffffff << 8);
 	seg->start_addr = 0;
 
-	err = mlx5_core_create_mkey(mdev, &mr->mmr, in, sizeof(*in));
+	err = mlx5_core_create_mkey(mdev, &mr->mmr, in, sizeof(*in), NULL, NULL,
+				    NULL);
 	if (err)
 		goto err_in;
 
@@ -660,14 +744,14 @@ static struct mlx5_ib_mr *reg_umr(struct ib_pd *pd, struct ib_umem *umem,
 	int err;
 	int i;
 
-	for (i = 0; i < 10; i++) {
+	for (i = 0; i < 1; i++) {
 		mr = alloc_cached_mr(dev, order);
 		if (mr)
 			break;
 
 		err = add_keys(dev, order2idx(dev, order), 1);
-		if (err) {
-			mlx5_ib_warn(dev, "add_keys failed\n");
+		if (err && err != -EAGAIN) {
+			mlx5_ib_warn(dev, "add_keys failed, err %d\n", err);
 			break;
 		}
 	}
@@ -759,8 +843,10 @@ static struct mlx5_ib_mr *reg_create(struct ib_pd *pd, u64 virt_addr,
 	in->seg.xlt_oct_size = cpu_to_be32(get_octo_len(virt_addr, length, 1 << page_shift));
 	in->seg.log2_page_size = page_shift;
 	in->seg.qpn_mkey7_0 = cpu_to_be32(0xffffff << 8);
-	in->xlat_oct_act_size = cpu_to_be32(get_octo_len(virt_addr, length, 1 << page_shift));
-	err = mlx5_core_create_mkey(&dev->mdev, &mr->mmr, in, inlen);
+	in->xlat_oct_act_size = cpu_to_be32(get_octo_len(virt_addr, length,
+							 1 << page_shift));
+	err = mlx5_core_create_mkey(&dev->mdev, &mr->mmr, in, inlen, NULL,
+				    NULL, NULL);
 	if (err) {
 		mlx5_ib_warn(dev, "create mkey failed\n");
 		goto err_2;
@@ -944,7 +1030,8 @@ struct ib_mr *mlx5_ib_alloc_fast_reg_mr(struct ib_pd *pd,
 	 * TBD not needed - issue 197292 */
 	in->seg.log2_page_size = PAGE_SHIFT;
 
-	err = mlx5_core_create_mkey(&dev->mdev, &mr->mmr, in, sizeof(*in));
+	err = mlx5_core_create_mkey(&dev->mdev, &mr->mmr, in, sizeof(*in), NULL,
+				    NULL, NULL);
 	kfree(in);
 	if (err)
 		goto err_free;
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 5659ea880741..e3881433f5d7 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -1744,6 +1744,7 @@ static void set_reg_umr_segment(struct mlx5_wqe_umr_ctrl_seg *umr,
 			MLX5_MKEY_MASK_PD		|
 			MLX5_MKEY_MASK_LR		|
 			MLX5_MKEY_MASK_LW		|
+			MLX5_MKEY_MASK_KEY		|
 			MLX5_MKEY_MASK_RR		|
 			MLX5_MKEY_MASK_RW		|
 			MLX5_MKEY_MASK_A		|
@@ -1800,7 +1801,8 @@ static void set_reg_mkey_segment(struct mlx5_mkey_seg *seg, struct ib_send_wr *w
 	seg->start_addr = cpu_to_be64(wr->wr.fast_reg.iova_start);
 	seg->len = cpu_to_be64(wr->wr.fast_reg.length);
 	seg->log2_page_size = wr->wr.fast_reg.page_shift;
-	seg->qpn_mkey7_0 = cpu_to_be32(0xffffff << 8);
+	seg->qpn_mkey7_0 = cpu_to_be32(0xffffff00 |
+				       mlx5_mkey_variant(wr->wr.fast_reg.rkey));
 }
 
 static void set_frwr_pages(struct mlx5_wqe_data_seg *dseg,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index 6ca30739625f..8675d26a678b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -98,6 +98,7 @@ enum {
 static struct mlx5_cmd_work_ent *alloc_cmd(struct mlx5_cmd *cmd,
 					   struct mlx5_cmd_msg *in,
 					   struct mlx5_cmd_msg *out,
+					   void *uout, int uout_size,
 					   mlx5_cmd_cbk_t cbk,
 					   void *context, int page_queue)
 {
@@ -110,6 +111,8 @@ static struct mlx5_cmd_work_ent *alloc_cmd(struct mlx5_cmd *cmd,
 
 	ent->in		= in;
 	ent->out	= out;
+	ent->uout	= uout;
+	ent->uout_size	= uout_size;
 	ent->callback	= cbk;
 	ent->context	= context;
 	ent->cmd	= cmd;
@@ -534,6 +537,7 @@ static void cmd_work_handler(struct work_struct *work)
 	ent->lay = lay;
 	memset(lay, 0, sizeof(*lay));
 	memcpy(lay->in, ent->in->first.data, sizeof(lay->in));
+	ent->op = be32_to_cpu(lay->in[0]) >> 16;
 	if (ent->in->next)
 		lay->in_ptr = cpu_to_be64(ent->in->next->dma);
 	lay->inlen = cpu_to_be32(ent->in->len);
@@ -628,7 +632,8 @@ static int wait_func(struct mlx5_core_dev *dev, struct mlx5_cmd_work_ent *ent)
  *    2. page queue commands do not support asynchrous completion
  */
 static int mlx5_cmd_invoke(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *in,
-			   struct mlx5_cmd_msg *out, mlx5_cmd_cbk_t callback,
+			   struct mlx5_cmd_msg *out, void *uout, int uout_size,
+			   mlx5_cmd_cbk_t callback,
 			   void *context, int page_queue, u8 *status)
 {
 	struct mlx5_cmd *cmd = &dev->cmd;
@@ -642,7 +647,8 @@ static int mlx5_cmd_invoke(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *in,
 	if (callback && page_queue)
 		return -EINVAL;
 
-	ent = alloc_cmd(cmd, in, out, callback, context, page_queue);
+	ent = alloc_cmd(cmd, in, out, uout, uout_size, callback, context,
+			page_queue);
 	if (IS_ERR(ent))
 		return PTR_ERR(ent);
 
@@ -670,10 +676,10 @@ static int mlx5_cmd_invoke(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *in,
 		op = be16_to_cpu(((struct mlx5_inbox_hdr *)in->first.data)->opcode);
 		if (op < ARRAY_SIZE(cmd->stats)) {
 			stats = &cmd->stats[op];
-			spin_lock(&stats->lock);
+			spin_lock_irq(&stats->lock);
 			stats->sum += ds;
 			++stats->n;
-			spin_unlock(&stats->lock);
+			spin_unlock_irq(&stats->lock);
 		}
 		mlx5_core_dbg_mask(dev, 1 << MLX5_CMD_TIME,
 				   "fw exec time for %s is %lld nsec\n",
@@ -826,7 +832,7 @@ static struct mlx5_cmd_msg *mlx5_alloc_cmd_msg(struct mlx5_core_dev *dev,
 	int n;
 	int i;
 
-	msg = kzalloc(sizeof(*msg), GFP_KERNEL);
+	msg = kzalloc(sizeof(*msg), flags);
 	if (!msg)
 		return ERR_PTR(-ENOMEM);
 
@@ -1109,6 +1115,19 @@ void mlx5_cmd_use_polling(struct mlx5_core_dev *dev)
 		up(&cmd->sem);
 }
 
+static void free_msg(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *msg)
+{
+	unsigned long flags;
+
+	if (msg->cache) {
+		spin_lock_irqsave(&msg->cache->lock, flags);
+		list_add_tail(&msg->list, &msg->cache->head);
+		spin_unlock_irqrestore(&msg->cache->lock, flags);
+	} else {
+		mlx5_free_cmd_msg(dev, msg);
+	}
+}
+
 void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, unsigned long vector)
 {
 	struct mlx5_cmd *cmd = &dev->cmd;
@@ -1117,6 +1136,10 @@ void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, unsigned long vector)
 	void *context;
 	int err;
 	int i;
+	ktime_t t1, t2, delta;
+	s64 ds;
+	struct mlx5_cmd_stats *stats;
+	unsigned long flags;
 
 	for (i = 0; i < (1 << cmd->log_sz); i++) {
 		if (test_bit(i, &vector)) {
@@ -1141,9 +1164,29 @@ void mlx5_cmd_comp_handler(struct mlx5_core_dev *dev, unsigned long vector)
 			}
 			free_ent(cmd, ent->idx);
 			if (ent->callback) {
+				t1 = timespec_to_ktime(ent->ts1);
+				t2 = timespec_to_ktime(ent->ts2);
+				delta = ktime_sub(t2, t1);
+				ds = ktime_to_ns(delta);
+				if (ent->op < ARRAY_SIZE(cmd->stats)) {
+					stats = &cmd->stats[ent->op];
+					spin_lock_irqsave(&stats->lock, flags);
+					stats->sum += ds;
+					++stats->n;
+					spin_unlock_irqrestore(&stats->lock, flags);
+				}
+
 				callback = ent->callback;
 				context = ent->context;
 				err = ent->ret;
+				if (!err)
+					err = mlx5_copy_from_msg(ent->uout,
+								 ent->out,
+								 ent->uout_size);
+
+				mlx5_free_cmd_msg(dev, ent->out);
+				free_msg(dev, ent->in);
+
 				free_cmd(ent);
 				callback(err, context);
 			} else {
@@ -1160,7 +1203,8 @@ static int status_to_err(u8 status)
 	return status ? -1 : 0; /* TBD more meaningful codes */
 }
 
-static struct mlx5_cmd_msg *alloc_msg(struct mlx5_core_dev *dev, int in_size)
+static struct mlx5_cmd_msg *alloc_msg(struct mlx5_core_dev *dev, int in_size,
+				      gfp_t gfp)
 {
 	struct mlx5_cmd_msg *msg = ERR_PTR(-ENOMEM);
 	struct mlx5_cmd *cmd = &dev->cmd;
@@ -1172,7 +1216,7 @@ static struct mlx5_cmd_msg *alloc_msg(struct mlx5_core_dev *dev, int in_size)
 		ent = &cmd->cache.med;
 
 	if (ent) {
-		spin_lock(&ent->lock);
+		spin_lock_irq(&ent->lock);
 		if (!list_empty(&ent->head)) {
 			msg = list_entry(ent->head.next, typeof(*msg), list);
 			/* For cached lists, we must explicitly state what is
@@ -1181,43 +1225,34 @@ static struct mlx5_cmd_msg *alloc_msg(struct mlx5_core_dev *dev, int in_size)
 			msg->len = in_size;
 			list_del(&msg->list);
 		}
-		spin_unlock(&ent->lock);
+		spin_unlock_irq(&ent->lock);
 	}
 
 	if (IS_ERR(msg))
-		msg = mlx5_alloc_cmd_msg(dev, GFP_KERNEL, in_size);
+		msg = mlx5_alloc_cmd_msg(dev, gfp, in_size);
 
 	return msg;
 }
 
-static void free_msg(struct mlx5_core_dev *dev, struct mlx5_cmd_msg *msg)
-{
-	if (msg->cache) {
-		spin_lock(&msg->cache->lock);
-		list_add_tail(&msg->list, &msg->cache->head);
-		spin_unlock(&msg->cache->lock);
-	} else {
-		mlx5_free_cmd_msg(dev, msg);
-	}
-}
-
 static int is_manage_pages(struct mlx5_inbox_hdr *in)
 {
 	return be16_to_cpu(in->opcode) == MLX5_CMD_OP_MANAGE_PAGES;
 }
 
-int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
-		  int out_size)
+static int cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
+		    int out_size, mlx5_cmd_cbk_t callback, void *context)
 {
 	struct mlx5_cmd_msg *inb;
 	struct mlx5_cmd_msg *outb;
 	int pages_queue;
+	gfp_t gfp;
 	int err;
 	u8 status = 0;
 
 	pages_queue = is_manage_pages(in);
+	gfp = callback ? GFP_ATOMIC : GFP_KERNEL;
 
-	inb = alloc_msg(dev, in_size);
+	inb = alloc_msg(dev, in_size, gfp);
 	if (IS_ERR(inb)) {
 		err = PTR_ERR(inb);
 		return err;
@@ -1229,13 +1264,14 @@ int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
 		goto out_in;
 	}
 
-	outb = mlx5_alloc_cmd_msg(dev, GFP_KERNEL, out_size);
+	outb = mlx5_alloc_cmd_msg(dev, gfp, out_size);
 	if (IS_ERR(outb)) {
 		err = PTR_ERR(outb);
 		goto out_in;
 	}
 
-	err = mlx5_cmd_invoke(dev, inb, outb, NULL, NULL, pages_queue, &status);
+	err = mlx5_cmd_invoke(dev, inb, outb, out, out_size, callback, context,
+			      pages_queue, &status);
 	if (err)
 		goto out_out;
 
@@ -1248,14 +1284,30 @@ int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
 	err = mlx5_copy_from_msg(out, outb, out_size);
 
 out_out:
-	mlx5_free_cmd_msg(dev, outb);
+	if (!callback)
+		mlx5_free_cmd_msg(dev, outb);
 
 out_in:
-	free_msg(dev, inb);
+	if (!callback)
+		free_msg(dev, inb);
 	return err;
 }
+
+int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
+		  int out_size)
+{
+	return cmd_exec(dev, in, in_size, out, out_size, NULL, NULL);
+}
 EXPORT_SYMBOL(mlx5_cmd_exec);
 
+int mlx5_cmd_exec_cb(struct mlx5_core_dev *dev, void *in, int in_size,
+		     void *out, int out_size, mlx5_cmd_cbk_t callback,
+		     void *context)
+{
+	return cmd_exec(dev, in, in_size, out, out_size, callback, context);
+}
+EXPORT_SYMBOL(mlx5_cmd_exec_cb);
+
 static void destroy_msg_cache(struct mlx5_core_dev *dev)
 {
 	struct mlx5_cmd *cmd = &dev->cmd;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c
index 9c7194b26ee2..80f6d127257a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/debugfs.c
@@ -154,10 +154,10 @@ static ssize_t average_read(struct file *filp, char __user *buf, size_t count,
 		return 0;
 
 	stats = filp->private_data;
-	spin_lock(&stats->lock);
+	spin_lock_irq(&stats->lock);
 	if (stats->n)
 		field = div64_u64(stats->sum, stats->n);
-	spin_unlock(&stats->lock);
+	spin_unlock_irq(&stats->lock);
 	ret = snprintf(tbuf, sizeof(tbuf), "%llu\n", field);
 	if (ret > 0) {
 		if (copy_to_user(buf, tbuf, ret))
@@ -175,10 +175,10 @@ static ssize_t average_write(struct file *filp, const char __user *buf,
 	struct mlx5_cmd_stats *stats;
 
 	stats = filp->private_data;
-	spin_lock(&stats->lock);
+	spin_lock_irq(&stats->lock);
 	stats->sum = 0;
 	stats->n = 0;
-	spin_unlock(&stats->lock);
+	spin_unlock_irq(&stats->lock);
 
 	*pos += count;
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mr.c b/drivers/net/ethernet/mellanox/mlx5/core/mr.c
index 5b44e2e46daf..35e514dc7b7d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/mr.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/mr.c
@@ -37,31 +37,41 @@
 #include "mlx5_core.h"
 
 int mlx5_core_create_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr,
-			  struct mlx5_create_mkey_mbox_in *in, int inlen)
+			  struct mlx5_create_mkey_mbox_in *in, int inlen,
+			  mlx5_cmd_cbk_t callback, void *context,
+			  struct mlx5_create_mkey_mbox_out *out)
 {
-	struct mlx5_create_mkey_mbox_out out;
+	struct mlx5_create_mkey_mbox_out lout;
 	int err;
 	u8 key;
 
-	memset(&out, 0, sizeof(out));
-	spin_lock(&dev->priv.mkey_lock);
+	memset(&lout, 0, sizeof(lout));
+	spin_lock_irq(&dev->priv.mkey_lock);
 	key = dev->priv.mkey_key++;
-	spin_unlock(&dev->priv.mkey_lock);
+	spin_unlock_irq(&dev->priv.mkey_lock);
 	in->seg.qpn_mkey7_0 |= cpu_to_be32(key);
 	in->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_CREATE_MKEY);
-	err = mlx5_cmd_exec(dev, in, inlen, &out, sizeof(out));
+	if (callback) {
+		err = mlx5_cmd_exec_cb(dev, in, inlen, out, sizeof(*out),
+				       callback, context);
+		return err;
+	} else {
+		err = mlx5_cmd_exec(dev, in, inlen, &lout, sizeof(lout));
+	}
+
 	if (err) {
 		mlx5_core_dbg(dev, "cmd exec faile %d\n", err);
 		return err;
 	}
 
-	if (out.hdr.status) {
-		mlx5_core_dbg(dev, "status %d\n", out.hdr.status);
-		return mlx5_cmd_status_to_err(&out.hdr);
+	if (lout.hdr.status) {
+		mlx5_core_dbg(dev, "status %d\n", lout.hdr.status);
+		return mlx5_cmd_status_to_err(&lout.hdr);
 	}
 
-	mr->key = mlx5_idx_to_mkey(be32_to_cpu(out.mkey) & 0xffffff) | key;
-	mlx5_core_dbg(dev, "out 0x%x, key 0x%x, mkey 0x%x\n", be32_to_cpu(out.mkey), key, mr->key);
+	mr->key = mlx5_idx_to_mkey(be32_to_cpu(lout.mkey) & 0xffffff) | key;
+	mlx5_core_dbg(dev, "out 0x%x, key 0x%x, mkey 0x%x\n",
+		      be32_to_cpu(lout.mkey), key, mr->key);
 
 	return err;
 }
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 6b8c496572c8..513619a75695 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -557,9 +557,11 @@ typedef void (*mlx5_cmd_cbk_t)(int status, void *context);
 struct mlx5_cmd_work_ent {
 	struct mlx5_cmd_msg    *in;
 	struct mlx5_cmd_msg    *out;
+	void		       *uout;
+	int			uout_size;
 	mlx5_cmd_cbk_t		callback;
 	void		       *context;
-	int idx;
+	int			idx;
 	struct completion	done;
 	struct mlx5_cmd        *cmd;
 	struct work_struct	work;
@@ -570,6 +572,7 @@ struct mlx5_cmd_work_ent {
 	u8			token;
 	struct timespec		ts1;
 	struct timespec		ts2;
+	u16			op;
 };
 
 struct mlx5_pas {
@@ -653,6 +656,9 @@ void mlx5_cmd_use_polling(struct mlx5_core_dev *dev);
 int mlx5_cmd_status_to_err(struct mlx5_outbox_hdr *hdr);
 int mlx5_cmd_exec(struct mlx5_core_dev *dev, void *in, int in_size, void *out,
 		  int out_size);
+int mlx5_cmd_exec_cb(struct mlx5_core_dev *dev, void *in, int in_size,
+		     void *out, int out_size, mlx5_cmd_cbk_t callback,
+		     void *context);
 int mlx5_cmd_alloc_uar(struct mlx5_core_dev *dev, u32 *uarn);
 int mlx5_cmd_free_uar(struct mlx5_core_dev *dev, u32 uarn);
 int mlx5_alloc_uuars(struct mlx5_core_dev *dev, struct mlx5_uuar_info *uuari);
@@ -676,7 +682,9 @@ int mlx5_core_query_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
 int mlx5_core_arm_srq(struct mlx5_core_dev *dev, struct mlx5_core_srq *srq,
 		      u16 lwm, int is_srq);
 int mlx5_core_create_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr,
-			  struct mlx5_create_mkey_mbox_in *in, int inlen);
+			  struct mlx5_create_mkey_mbox_in *in, int inlen,
+			  mlx5_cmd_cbk_t callback, void *context,
+			  struct mlx5_create_mkey_mbox_out *out);
 int mlx5_core_destroy_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr);
 int mlx5_core_query_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr,
 			 struct mlx5_query_mkey_mbox_out *out, int outlen);
@@ -745,6 +753,11 @@ static inline u32 mlx5_idx_to_mkey(u32 mkey_idx)
 	return mkey_idx << 8;
 }
 
+static inline u8 mlx5_mkey_variant(u32 mkey)
+{
+	return mkey & 0xff;
+}
+
 enum {
 	MLX5_PROF_MASK_QP_SIZE		= (u64)1 << 0,
 	MLX5_PROF_MASK_MR_CACHE		= (u64)1 << 1,
-- 
cgit 


From 9641b74ebee65320fa52172995d6df12b641caa5 Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Wed, 23 Oct 2013 09:53:15 +0300
Subject: IB/mlx5: Fix overflow check in IB_WR_FAST_REG_MR

Make sure not to overflow when reading the page list from struct
ib_fast_reg_page_list.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/mlx5/qp.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index e3881433f5d7..8a36fd78c89f 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -1915,6 +1915,10 @@ static int set_frwr_li_wr(void **seg, struct ib_send_wr *wr, int *size,
 	if (unlikely((*seg == qp->sq.qend)))
 		*seg = mlx5_get_send_wqe(qp, 0);
 	if (!li) {
+		if (unlikely(wr->wr.fast_reg.page_list_len >
+			     wr->wr.fast_reg.page_list->max_page_list_len))
+			return	-ENOMEM;
+
 		set_frwr_pages(*seg, wr, mdev, pd, writ);
 		*seg += sizeof(struct mlx5_wqe_data_seg);
 		*size += (sizeof(struct mlx5_wqe_data_seg) / 16);
-- 
cgit 


From 1faacf82dfb3e0027087ff7e6aae5e0643b98a4d Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Wed, 23 Oct 2013 09:53:16 +0300
Subject: IB/mlx5: Simplify mlx5_ib_destroy_srq

Make use of destroy_srq_kernel() to clear SRQ resouces.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/mlx5/srq.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/srq.c b/drivers/infiniband/hw/mlx5/srq.c
index 0aa478bc291a..f1e5845b42b0 100644
--- a/drivers/infiniband/hw/mlx5/srq.c
+++ b/drivers/infiniband/hw/mlx5/srq.c
@@ -390,9 +390,7 @@ int mlx5_ib_destroy_srq(struct ib_srq *srq)
 		mlx5_ib_db_unmap_user(to_mucontext(srq->uobject->context), &msrq->db);
 		ib_umem_release(msrq->umem);
 	} else {
-		kfree(msrq->wrid);
-		mlx5_buf_free(&dev->mdev, &msrq->buf);
-		mlx5_db_free(&dev->mdev, &msrq->db);
+		destroy_srq_kernel(dev, msrq);
 	}
 
 	kfree(srq);
-- 
cgit 


From cfd8f1d49b61b20aab77d5af5ec907dc99bb0064 Mon Sep 17 00:00:00 2001
From: Moshe Lazer <moshel@mellanox.com>
Date: Wed, 23 Oct 2013 09:53:17 +0300
Subject: IB/mlx5: Fix srq free in destroy qp

On destroy QP the driver walks over the relevant CQ and removes CQEs
reported for the destroyed QP.  It also frees the related SRQ entry
without checking that this is actually an SRQ-related CQE.  In case of
a CQ used for both send and receive QP, we could free SRQ entries for
send CQEs.  This patch resolves this issue by verifying that this is a
SRQ related CQE by checking the SRQ number in the CQE is not zero.

Signed-off-by: Moshe Lazer <moshel@mellanox.com>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/mlx5/cq.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c
index e7c64c57d699..84591865e39d 100644
--- a/drivers/infiniband/hw/mlx5/cq.c
+++ b/drivers/infiniband/hw/mlx5/cq.c
@@ -750,17 +750,9 @@ int mlx5_ib_destroy_cq(struct ib_cq *cq)
 	return 0;
 }
 
-static int is_equal_rsn(struct mlx5_cqe64 *cqe64, struct mlx5_ib_srq *srq,
-			u32 rsn)
+static int is_equal_rsn(struct mlx5_cqe64 *cqe64, u32 rsn)
 {
-	u32 lrsn;
-
-	if (srq)
-		lrsn = be32_to_cpu(cqe64->srqn) & 0xffffff;
-	else
-		lrsn = be32_to_cpu(cqe64->sop_drop_qpn) & 0xffffff;
-
-	return rsn == lrsn;
+	return rsn == (ntohl(cqe64->sop_drop_qpn) & 0xffffff);
 }
 
 void __mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 rsn, struct mlx5_ib_srq *srq)
@@ -790,8 +782,8 @@ void __mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 rsn, struct mlx5_ib_srq *srq)
 	while ((int) --prod_index - (int) cq->mcq.cons_index >= 0) {
 		cqe = get_cqe(cq, prod_index & cq->ibcq.cqe);
 		cqe64 = (cq->mcq.cqe_sz == 64) ? cqe : cqe + 64;
-		if (is_equal_rsn(cqe64, srq, rsn)) {
-			if (srq)
+		if (is_equal_rsn(cqe64, rsn)) {
+			if (srq && (ntohl(cqe64->srqn) & 0xffffff))
 				mlx5_ib_free_srq_wqe(srq, be16_to_cpu(cqe64->wqe_counter));
 			++nfreed;
 		} else if (nfreed) {
-- 
cgit 


From 952f5f6e807ba82e1b82fcfcf7f73db022342aa7 Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Wed, 23 Oct 2013 09:53:18 +0300
Subject: mlx5: Fix cleanup flow when DMA mapping fails

If DMA mapping fails, the driver cleared the object that holds the
previously DMA mapped pages. Fix this by allocating a new object for
the command that reports back to firmware that pages can't be
supplied.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
index 7b12acf210f8..a0d0da35578c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
@@ -181,6 +181,7 @@ static int give_pages(struct mlx5_core_dev *dev, u16 func_id, int npages,
 {
 	struct mlx5_manage_pages_inbox *in;
 	struct mlx5_manage_pages_outbox out;
+	struct mlx5_manage_pages_inbox *nin;
 	struct page *page;
 	int inlen;
 	u64 addr;
@@ -247,13 +248,20 @@ static int give_pages(struct mlx5_core_dev *dev, u16 func_id, int npages,
 
 out_alloc:
 	if (notify_fail) {
-		memset(in, 0, inlen);
+		nin = kzalloc(sizeof(*nin), GFP_KERNEL);
+		if (!nin) {
+			mlx5_core_warn(dev, "allocation failed\n");
+			goto unmap;
+		}
 		memset(&out, 0, sizeof(out));
-		in->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_MANAGE_PAGES);
-		in->hdr.opmod = cpu_to_be16(MLX5_PAGES_CANT_GIVE);
-		if (mlx5_cmd_exec(dev, in, sizeof(*in), &out, sizeof(out)))
-			mlx5_core_warn(dev, "\n");
+		nin->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_MANAGE_PAGES);
+		nin->hdr.opmod = cpu_to_be16(MLX5_PAGES_CANT_GIVE);
+		if (mlx5_cmd_exec(dev, nin, sizeof(*nin), &out, sizeof(out)))
+			mlx5_core_warn(dev, "page notify failed\n");
+		kfree(nin);
 	}
+
+unmap:
 	for (i--; i >= 0; i--) {
 		addr = be64_to_cpu(in->pas[i]);
 		page = remove_page(dev, addr);
-- 
cgit 


From bf0bf77f6519e5dcd57a77b47e1d151c1e81b7ec Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Wed, 23 Oct 2013 09:53:19 +0300
Subject: mlx5: Support communicating arbitrary host page size to firmware

Connect-IB firmware requires 4K pages to be communicated with the
driver. This patch breaks larger pages to 4K units to enable support
for architectures utilizing larger page size, such as PowerPC.  This
patch also fixes several places that referred to PAGE_SHIFT instead of
explicit 12 which is the inherent page shift on Connect-IB.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/mlx5/cq.c                    |   2 +-
 drivers/infiniband/hw/mlx5/qp.c                    |   4 +-
 drivers/infiniband/hw/mlx5/srq.c                   |   4 +-
 drivers/net/ethernet/mellanox/mlx5/core/eq.c       |   2 +-
 .../net/ethernet/mellanox/mlx5/core/pagealloc.c    | 174 ++++++++++++++-------
 include/linux/mlx5/driver.h                        |   1 +
 6 files changed, 127 insertions(+), 60 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c
index 84591865e39d..eecac7b52bcb 100644
--- a/drivers/infiniband/hw/mlx5/cq.c
+++ b/drivers/infiniband/hw/mlx5/cq.c
@@ -620,7 +620,7 @@ static int create_cq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq,
 	}
 	mlx5_fill_page_array(&cq->buf.buf, (*cqb)->pas);
 
-	(*cqb)->ctx.log_pg_sz = cq->buf.buf.page_shift - PAGE_SHIFT;
+	(*cqb)->ctx.log_pg_sz = cq->buf.buf.page_shift - 12;
 	*index = dev->mdev.priv.uuari.uars[0].index;
 
 	return 0;
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 8a36fd78c89f..ce14008a5702 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -551,7 +551,7 @@ static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd,
 	}
 	mlx5_ib_populate_pas(dev, qp->umem, page_shift, (*in)->pas, 0);
 	(*in)->ctx.log_pg_sz_remote_qpn =
-		cpu_to_be32((page_shift - PAGE_SHIFT) << 24);
+		cpu_to_be32((page_shift - 12) << 24);
 	(*in)->ctx.params2 = cpu_to_be32(offset << 6);
 
 	(*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index);
@@ -648,7 +648,7 @@ static int create_kernel_qp(struct mlx5_ib_dev *dev,
 		goto err_buf;
 	}
 	(*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index);
-	(*in)->ctx.log_pg_sz_remote_qpn = cpu_to_be32((qp->buf.page_shift - PAGE_SHIFT) << 24);
+	(*in)->ctx.log_pg_sz_remote_qpn = cpu_to_be32((qp->buf.page_shift - 12) << 24);
 	/* Set "fast registration enabled" for all kernel QPs */
 	(*in)->ctx.params1 |= cpu_to_be32(1 << 11);
 	(*in)->ctx.sq_crq_size |= cpu_to_be16(1 << 4);
diff --git a/drivers/infiniband/hw/mlx5/srq.c b/drivers/infiniband/hw/mlx5/srq.c
index f1e5845b42b0..dbc2c7188c5e 100644
--- a/drivers/infiniband/hw/mlx5/srq.c
+++ b/drivers/infiniband/hw/mlx5/srq.c
@@ -123,7 +123,7 @@ static int create_srq_user(struct ib_pd *pd, struct mlx5_ib_srq *srq,
 		goto err_in;
 	}
 
-	(*in)->ctx.log_pg_sz = page_shift - PAGE_SHIFT;
+	(*in)->ctx.log_pg_sz = page_shift - 12;
 	(*in)->ctx.pgoff_cqn = cpu_to_be32(offset << 26);
 
 	return 0;
@@ -192,7 +192,7 @@ static int create_srq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_srq *srq,
 	}
 	srq->wq_sig = !!srq_signature;
 
-	(*in)->ctx.log_pg_sz = page_shift - PAGE_SHIFT;
+	(*in)->ctx.log_pg_sz = page_shift - 12;
 
 	return 0;
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
index 2231d93cc7ad..6b4b436840bd 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
@@ -354,7 +354,7 @@ int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx,
 	in->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_CREATE_EQ);
 	in->ctx.log_sz_usr_page = cpu_to_be32(ilog2(eq->nent) << 24 | uar->index);
 	in->ctx.intr = vecidx;
-	in->ctx.log_page_size = PAGE_SHIFT - 12;
+	in->ctx.log_page_size = eq->buf.page_shift - 12;
 	in->events_mask = cpu_to_be64(mask);
 
 	err = mlx5_cmd_exec(dev, in, inlen, &out, sizeof(out));
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
index a0d0da35578c..013aa422adee 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
@@ -57,10 +57,13 @@ struct mlx5_pages_req {
 };
 
 struct fw_page {
-	struct rb_node	rb_node;
-	u64		addr;
-	struct page	*page;
-	u16		func_id;
+	struct rb_node		rb_node;
+	u64			addr;
+	struct page	       *page;
+	u16			func_id;
+	unsigned long		bitmask;
+	struct list_head	list;
+	unsigned		free_count;
 };
 
 struct mlx5_query_pages_inbox {
@@ -94,6 +97,11 @@ enum {
 	MAX_RECLAIM_TIME_MSECS	= 5000,
 };
 
+enum {
+	MLX5_MAX_RECLAIM_TIME_MILI	= 5000,
+	MLX5_NUM_4K_IN_PAGE		= PAGE_SIZE / 4096,
+};
+
 static int insert_page(struct mlx5_core_dev *dev, u64 addr, struct page *page, u16 func_id)
 {
 	struct rb_root *root = &dev->priv.page_root;
@@ -101,6 +109,7 @@ static int insert_page(struct mlx5_core_dev *dev, u64 addr, struct page *page, u
 	struct rb_node *parent = NULL;
 	struct fw_page *nfp;
 	struct fw_page *tfp;
+	int i;
 
 	while (*new) {
 		parent = *new;
@@ -113,25 +122,29 @@ static int insert_page(struct mlx5_core_dev *dev, u64 addr, struct page *page, u
 			return -EEXIST;
 	}
 
-	nfp = kmalloc(sizeof(*nfp), GFP_KERNEL);
+	nfp = kzalloc(sizeof(*nfp), GFP_KERNEL);
 	if (!nfp)
 		return -ENOMEM;
 
 	nfp->addr = addr;
 	nfp->page = page;
 	nfp->func_id = func_id;
+	nfp->free_count = MLX5_NUM_4K_IN_PAGE;
+	for (i = 0; i < MLX5_NUM_4K_IN_PAGE; i++)
+		set_bit(i, &nfp->bitmask);
 
 	rb_link_node(&nfp->rb_node, parent, new);
 	rb_insert_color(&nfp->rb_node, root);
+	list_add(&nfp->list, &dev->priv.free_list);
 
 	return 0;
 }
 
-static struct page *remove_page(struct mlx5_core_dev *dev, u64 addr)
+static struct fw_page *find_fw_page(struct mlx5_core_dev *dev, u64 addr)
 {
 	struct rb_root *root = &dev->priv.page_root;
 	struct rb_node *tmp = root->rb_node;
-	struct page *result = NULL;
+	struct fw_page *result = NULL;
 	struct fw_page *tfp;
 
 	while (tmp) {
@@ -141,9 +154,7 @@ static struct page *remove_page(struct mlx5_core_dev *dev, u64 addr)
 		} else if (tfp->addr > addr) {
 			tmp = tmp->rb_right;
 		} else {
-			rb_erase(&tfp->rb_node, root);
-			result = tfp->page;
-			kfree(tfp);
+			result = tfp;
 			break;
 		}
 	}
@@ -176,13 +187,97 @@ static int mlx5_cmd_query_pages(struct mlx5_core_dev *dev, u16 *func_id,
 	return err;
 }
 
+static int alloc_4k(struct mlx5_core_dev *dev, u64 *addr)
+{
+	struct fw_page *fp;
+	unsigned n;
+
+	if (list_empty(&dev->priv.free_list)) {
+		return -ENOMEM;
+		mlx5_core_warn(dev, "\n");
+	}
+
+	fp = list_entry(dev->priv.free_list.next, struct fw_page, list);
+	n = find_first_bit(&fp->bitmask, 8 * sizeof(fp->bitmask));
+	if (n >= MLX5_NUM_4K_IN_PAGE) {
+		mlx5_core_warn(dev, "alloc 4k bug\n");
+		return -ENOENT;
+	}
+	clear_bit(n, &fp->bitmask);
+	fp->free_count--;
+	if (!fp->free_count)
+		list_del(&fp->list);
+
+	*addr = fp->addr + n * 4096;
+
+	return 0;
+}
+
+static void free_4k(struct mlx5_core_dev *dev, u64 addr)
+{
+	struct fw_page *fwp;
+	int n;
+
+	fwp = find_fw_page(dev, addr & PAGE_MASK);
+	if (!fwp) {
+		mlx5_core_warn(dev, "page not found\n");
+		return;
+	}
+
+	n = (addr & ~PAGE_MASK) % 4096;
+	fwp->free_count++;
+	set_bit(n, &fwp->bitmask);
+	if (fwp->free_count == MLX5_NUM_4K_IN_PAGE) {
+		rb_erase(&fwp->rb_node, &dev->priv.page_root);
+		list_del(&fwp->list);
+		dma_unmap_page(&dev->pdev->dev, addr, PAGE_SIZE, DMA_BIDIRECTIONAL);
+		__free_page(fwp->page);
+		kfree(fwp);
+	} else if (fwp->free_count == 1) {
+		list_add(&fwp->list, &dev->priv.free_list);
+	}
+}
+
+static int alloc_system_page(struct mlx5_core_dev *dev, u16 func_id)
+{
+	struct page *page;
+	u64 addr;
+	int err;
+
+	page = alloc_page(GFP_HIGHUSER);
+	if (!page) {
+		mlx5_core_warn(dev, "failed to allocate page\n");
+		return -ENOMEM;
+	}
+	addr = dma_map_page(&dev->pdev->dev, page, 0,
+			    PAGE_SIZE, DMA_BIDIRECTIONAL);
+	if (dma_mapping_error(&dev->pdev->dev, addr)) {
+		mlx5_core_warn(dev, "failed dma mapping page\n");
+		err = -ENOMEM;
+		goto out_alloc;
+	}
+	err = insert_page(dev, addr, page, func_id);
+	if (err) {
+		mlx5_core_err(dev, "failed to track allocated page\n");
+		goto out_mapping;
+	}
+
+	return 0;
+
+out_mapping:
+	dma_unmap_page(&dev->pdev->dev, addr, PAGE_SIZE, DMA_BIDIRECTIONAL);
+
+out_alloc:
+	__free_page(page);
+
+	return err;
+}
 static int give_pages(struct mlx5_core_dev *dev, u16 func_id, int npages,
 		      int notify_fail)
 {
 	struct mlx5_manage_pages_inbox *in;
 	struct mlx5_manage_pages_outbox out;
 	struct mlx5_manage_pages_inbox *nin;
-	struct page *page;
 	int inlen;
 	u64 addr;
 	int err;
@@ -197,27 +292,15 @@ static int give_pages(struct mlx5_core_dev *dev, u16 func_id, int npages,
 	memset(&out, 0, sizeof(out));
 
 	for (i = 0; i < npages; i++) {
-		page = alloc_page(GFP_HIGHUSER);
-		if (!page) {
-			err = -ENOMEM;
-			mlx5_core_warn(dev, "failed to allocate page\n");
-			goto out_alloc;
-		}
-		addr = dma_map_page(&dev->pdev->dev, page, 0,
-				    PAGE_SIZE, DMA_BIDIRECTIONAL);
-		if (dma_mapping_error(&dev->pdev->dev, addr)) {
-			mlx5_core_warn(dev, "failed dma mapping page\n");
-			__free_page(page);
-			err = -ENOMEM;
-			goto out_alloc;
-		}
-		err = insert_page(dev, addr, page, func_id);
+retry:
+		err = alloc_4k(dev, &addr);
 		if (err) {
-			mlx5_core_err(dev, "failed to track allocated page\n");
-			dma_unmap_page(&dev->pdev->dev, addr, PAGE_SIZE, DMA_BIDIRECTIONAL);
-			__free_page(page);
-			err = -ENOMEM;
-			goto out_alloc;
+			if (err == -ENOMEM)
+				err = alloc_system_page(dev, func_id);
+			if (err)
+				goto out_4k;
+
+			goto retry;
 		}
 		in->pas[i] = cpu_to_be64(addr);
 	}
@@ -227,7 +310,6 @@ static int give_pages(struct mlx5_core_dev *dev, u16 func_id, int npages,
 	in->func_id = cpu_to_be16(func_id);
 	in->num_entries = cpu_to_be32(npages);
 	err = mlx5_cmd_exec(dev, in, inlen, &out, sizeof(out));
-	mlx5_core_dbg(dev, "err %d\n", err);
 	if (err) {
 		mlx5_core_warn(dev, "func_id 0x%x, npages %d, err %d\n", func_id, npages, err);
 		goto out_alloc;
@@ -251,7 +333,7 @@ out_alloc:
 		nin = kzalloc(sizeof(*nin), GFP_KERNEL);
 		if (!nin) {
 			mlx5_core_warn(dev, "allocation failed\n");
-			goto unmap;
+			goto out_4k;
 		}
 		memset(&out, 0, sizeof(out));
 		nin->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_MANAGE_PAGES);
@@ -261,19 +343,9 @@ out_alloc:
 		kfree(nin);
 	}
 
-unmap:
-	for (i--; i >= 0; i--) {
-		addr = be64_to_cpu(in->pas[i]);
-		page = remove_page(dev, addr);
-		if (!page) {
-			mlx5_core_err(dev, "BUG: can't remove page at addr 0x%llx\n",
-				      addr);
-			continue;
-		}
-		dma_unmap_page(&dev->pdev->dev, addr, PAGE_SIZE, DMA_BIDIRECTIONAL);
-		__free_page(page);
-	}
-
+out_4k:
+	for (i--; i >= 0; i--)
+		free_4k(dev, be64_to_cpu(in->pas[i]));
 out_free:
 	mlx5_vfree(in);
 	return err;
@@ -284,7 +356,6 @@ static int reclaim_pages(struct mlx5_core_dev *dev, u32 func_id, int npages,
 {
 	struct mlx5_manage_pages_inbox   in;
 	struct mlx5_manage_pages_outbox *out;
-	struct page *page;
 	int num_claimed;
 	int outlen;
 	u64 addr;
@@ -323,13 +394,7 @@ static int reclaim_pages(struct mlx5_core_dev *dev, u32 func_id, int npages,
 
 	for (i = 0; i < num_claimed; i++) {
 		addr = be64_to_cpu(out->pas[i]);
-		page = remove_page(dev, addr);
-		if (!page) {
-			mlx5_core_warn(dev, "FW reported unknown DMA address 0x%llx\n", addr);
-		} else {
-			dma_unmap_page(&dev->pdev->dev, addr, PAGE_SIZE, DMA_BIDIRECTIONAL);
-			__free_page(page);
-		}
+		free_4k(dev, addr);
 	}
 
 out_free:
@@ -435,6 +500,7 @@ int mlx5_reclaim_startup_pages(struct mlx5_core_dev *dev)
 void mlx5_pagealloc_init(struct mlx5_core_dev *dev)
 {
 	dev->priv.page_root = RB_ROOT;
+	INIT_LIST_HEAD(&dev->priv.free_list);
 }
 
 void mlx5_pagealloc_cleanup(struct mlx5_core_dev *dev)
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 513619a75695..554548cd3dd4 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -483,6 +483,7 @@ struct mlx5_priv {
 	struct rb_root		page_root;
 	int			fw_pages;
 	int			reg_pages;
+	struct list_head	free_list;
 
 	struct mlx5_core_health health;
 
-- 
cgit 


From 87b8de492da34942fc554f2958a570ce0642296a Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Wed, 23 Oct 2013 09:53:20 +0300
Subject: mlx5: Clear reserved area in set_hca_cap()

Firmware spec requires reserved fields to be cleared when calling
set_hca_cap.  Current code queries and copy to the set area, possibly
resulting in reserved bits not cleared. This patch copies only
writable fields to the set area.

Fix also typo - msx => max

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/main.c | 35 +++++++++++++++++++++++---
 include/linux/mlx5/device.h                    |  9 +++++--
 2 files changed, 39 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index bc0f5fb66e24..40a9f5ed814d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -159,6 +159,36 @@ struct mlx5_reg_host_endianess {
 	u8      rsvd[15];
 };
 
+
+#define CAP_MASK(pos, size) ((u64)((1 << (size)) - 1) << (pos))
+
+enum {
+	MLX5_CAP_BITS_RW_MASK	= CAP_MASK(MLX5_CAP_OFF_CMDIF_CSUM, 2) |
+				  CAP_MASK(MLX5_CAP_OFF_DCT, 1),
+};
+
+/* selectively copy writable fields clearing any reserved area
+ */
+static void copy_rw_fields(struct mlx5_hca_cap *to, struct mlx5_hca_cap *from)
+{
+	u64 v64;
+
+	to->log_max_qp = from->log_max_qp & 0x1f;
+	to->log_max_ra_req_dc = from->log_max_ra_req_dc & 0x3f;
+	to->log_max_ra_res_dc = from->log_max_ra_res_dc & 0x3f;
+	to->log_max_ra_req_qp = from->log_max_ra_req_qp & 0x3f;
+	to->log_max_ra_res_qp = from->log_max_ra_res_qp & 0x3f;
+	to->log_max_atomic_size_qp = from->log_max_atomic_size_qp;
+	to->log_max_atomic_size_dc = from->log_max_atomic_size_dc;
+	v64 = be64_to_cpu(from->flags) & MLX5_CAP_BITS_RW_MASK;
+	to->flags = cpu_to_be64(v64);
+}
+
+enum {
+	HCA_CAP_OPMOD_GET_MAX	= 0,
+	HCA_CAP_OPMOD_GET_CUR	= 1,
+};
+
 static int handle_hca_cap(struct mlx5_core_dev *dev)
 {
 	struct mlx5_cmd_query_hca_cap_mbox_out *query_out = NULL;
@@ -180,7 +210,7 @@ static int handle_hca_cap(struct mlx5_core_dev *dev)
 	}
 
 	query_ctx.hdr.opcode = cpu_to_be16(MLX5_CMD_OP_QUERY_HCA_CAP);
-	query_ctx.hdr.opmod  = cpu_to_be16(0x1);
+	query_ctx.hdr.opmod  = cpu_to_be16(HCA_CAP_OPMOD_GET_CUR);
 	err = mlx5_cmd_exec(dev, &query_ctx, sizeof(query_ctx),
 				 query_out, sizeof(*query_out));
 	if (err)
@@ -192,8 +222,7 @@ static int handle_hca_cap(struct mlx5_core_dev *dev)
 		goto query_ex;
 	}
 
-	memcpy(&set_ctx->hca_cap, &query_out->hca_cap,
-	       sizeof(set_ctx->hca_cap));
+	copy_rw_fields(&set_ctx->hca_cap, &query_out->hca_cap);
 
 	if (dev->profile->mask & MLX5_PROF_MASK_QP_SIZE)
 		set_ctx->hca_cap.log_max_qp = dev->profile->log_max_qp;
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index 5eb4e31af22b..3d789f43e34b 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -230,6 +230,11 @@ enum {
 	MLX5_MAX_PAGE_SHIFT		= 31
 };
 
+enum {
+	MLX5_CAP_OFF_DCT		= 41,
+	MLX5_CAP_OFF_CMDIF_CSUM		= 46,
+};
+
 struct mlx5_inbox_hdr {
 	__be16		opcode;
 	u8		rsvd[4];
@@ -319,9 +324,9 @@ struct mlx5_hca_cap {
 	u8	rsvd25[42];
 	__be16  log_uar_page_sz;
 	u8	rsvd26[28];
-	u8	log_msx_atomic_size_qp;
+	u8	log_max_atomic_size_qp;
 	u8	rsvd27[2];
-	u8	log_msx_atomic_size_dc;
+	u8	log_max_atomic_size_dc;
 	u8	rsvd28[76];
 };
 
-- 
cgit 


From 4e3d677ba986d5c8e76ee1742c1d4d79bc197d5c Mon Sep 17 00:00:00 2001
From: Moshe Lazer <moshel@mellanox.com>
Date: Wed, 23 Oct 2013 09:53:21 +0300
Subject: mlx5_core: Change optimal_reclaimed_pages for better performance

Change optimal_reclaimed_pages() to increase the output size of each
reclaim pages command. This change reduces significantly the amount of
reclaim pages commands issued to FW when the driver is unloaded which
reduces the overall driver unload time.

Signed-off-by: Moshe Lazer <moshel@mellanox.com>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
index 013aa422adee..ba816c25c5c1 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
@@ -454,14 +454,19 @@ int mlx5_satisfy_startup_pages(struct mlx5_core_dev *dev, int boot)
 	return give_pages(dev, func_id, npages, 0);
 }
 
+enum {
+	MLX5_BLKS_FOR_RECLAIM_PAGES = 12
+};
+
 static int optimal_reclaimed_pages(void)
 {
 	struct mlx5_cmd_prot_block *block;
 	struct mlx5_cmd_layout *lay;
 	int ret;
 
-	ret = (sizeof(lay->in) + sizeof(block->data) -
-	       sizeof(struct mlx5_manage_pages_outbox)) / 8;
+	ret = (sizeof(lay->out) + MLX5_BLKS_FOR_RECLAIM_PAGES * sizeof(block->data) -
+	       sizeof(struct mlx5_manage_pages_outbox)) /
+	       FIELD_SIZEOF(struct mlx5_manage_pages_outbox, pas[0]);
 
 	return ret;
 }
-- 
cgit 


From 2d036fad949080f178e02b12c93a61367e9f562f Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Thu, 24 Oct 2013 12:01:00 +0300
Subject: IB/mlx5: Remove dead code in mr.c

In mlx5_mr_cache_init() the size variable is not used so remove it to
avoid compiler warnings when running with make W=1.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/mlx5/mr.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index d7f202290747..2c4626f7b1b8 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -40,7 +40,6 @@
 #include "mlx5_ib.h"
 
 enum {
-	DEF_CACHE_SIZE	= 10,
 	MAX_PENDING_REG_MR = 8,
 };
 
@@ -550,7 +549,6 @@ int mlx5_mr_cache_init(struct mlx5_ib_dev *dev)
 	struct mlx5_mr_cache *cache = &dev->cache;
 	struct mlx5_cache_ent *ent;
 	int limit;
-	int size;
 	int err;
 	int i;
 
@@ -571,13 +569,11 @@ int mlx5_mr_cache_init(struct mlx5_ib_dev *dev)
 		ent->order = i + 2;
 		ent->dev = dev;
 
-		if (dev->mdev.profile->mask & MLX5_PROF_MASK_MR_CACHE) {
-			size = dev->mdev.profile->mr_cache[i].size;
+		if (dev->mdev.profile->mask & MLX5_PROF_MASK_MR_CACHE)
 			limit = dev->mdev.profile->mr_cache[i].limit;
-		} else {
-			size = DEF_CACHE_SIZE;
+		else
 			limit = 0;
-		}
+
 		INIT_WORK(&ent->work, cache_work_func);
 		INIT_DELAYED_WORK(&ent->dwork, delayed_cache_work_func);
 		ent->limit = limit;
-- 
cgit 


From 07c9113fe8c67e28707b0a4b1e8580abe0327145 Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Thu, 24 Oct 2013 12:01:01 +0300
Subject: IB/mlx5: Remove "Always false" comparison

mlx5_cur and mlx5_new cannot have negative values so remove the
redundant condition.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/mlx5/qp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index ce14008a5702..2e4c4656e047 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -1550,7 +1550,7 @@ static int __mlx5_ib_modify_qp(struct ib_qp *ibqp,
 	mlx5_cur = to_mlx5_state(cur_state);
 	mlx5_new = to_mlx5_state(new_state);
 	mlx5_st = to_mlx5_st(ibqp->qp_type);
-	if (mlx5_cur < 0 || mlx5_new < 0 || mlx5_st < 0)
+	if (mlx5_st < 0)
 		goto out;
 
 	optpar = ib_mask_to_mlx5_opt(attr_mask);
-- 
cgit 


From c2a3431e6153ed90911704356bc1e869624e118d Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Thu, 24 Oct 2013 12:01:02 +0300
Subject: IB/mlx5: Update opt param mask for RTS2RTS

RTS to RTS transition should allow update of alternate path.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/mlx5/qp.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 2e4c4656e047..5bcf57943b84 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -1317,9 +1317,11 @@ static enum mlx5_qp_optpar opt_mask[MLX5_QP_NUM_STATE][MLX5_QP_NUM_STATE][MLX5_Q
 					  MLX5_QP_OPTPAR_RAE		|
 					  MLX5_QP_OPTPAR_RWE		|
 					  MLX5_QP_OPTPAR_RNR_TIMEOUT	|
-					  MLX5_QP_OPTPAR_PM_STATE,
+					  MLX5_QP_OPTPAR_PM_STATE	|
+					  MLX5_QP_OPTPAR_ALT_ADDR_PATH,
 			[MLX5_QP_ST_UC] = MLX5_QP_OPTPAR_RWE		|
-					  MLX5_QP_OPTPAR_PM_STATE,
+					  MLX5_QP_OPTPAR_PM_STATE	|
+					  MLX5_QP_OPTPAR_ALT_ADDR_PATH,
 			[MLX5_QP_ST_UD] = MLX5_QP_OPTPAR_Q_KEY		|
 					  MLX5_QP_OPTPAR_SRQN		|
 					  MLX5_QP_OPTPAR_CQN_RCV,
-- 
cgit 


From 1b77d2bd753d119eedcbc08fda58934307676554 Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Thu, 24 Oct 2013 12:01:03 +0300
Subject: mlx5: Use enum to indicate adapter page size

The Connect-IB adapter has an inherent page size which equals 4K.
Define an new enum that equals the page shift and use it instead of
using the value 12 throughout the code.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/mlx5/cq.c              | 2 +-
 drivers/infiniband/hw/mlx5/qp.c              | 5 +++--
 drivers/infiniband/hw/mlx5/srq.c             | 4 ++--
 drivers/net/ethernet/mellanox/mlx5/core/eq.c | 2 +-
 include/linux/mlx5/device.h                  | 4 ++++
 5 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c
index eecac7b52bcb..28344773f640 100644
--- a/drivers/infiniband/hw/mlx5/cq.c
+++ b/drivers/infiniband/hw/mlx5/cq.c
@@ -620,7 +620,7 @@ static int create_cq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_cq *cq,
 	}
 	mlx5_fill_page_array(&cq->buf.buf, (*cqb)->pas);
 
-	(*cqb)->ctx.log_pg_sz = cq->buf.buf.page_shift - 12;
+	(*cqb)->ctx.log_pg_sz = cq->buf.buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT;
 	*index = dev->mdev.priv.uuari.uars[0].index;
 
 	return 0;
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index 5bcf57943b84..7c6b4ba49bec 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -551,7 +551,7 @@ static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd,
 	}
 	mlx5_ib_populate_pas(dev, qp->umem, page_shift, (*in)->pas, 0);
 	(*in)->ctx.log_pg_sz_remote_qpn =
-		cpu_to_be32((page_shift - 12) << 24);
+		cpu_to_be32((page_shift - MLX5_ADAPTER_PAGE_SHIFT) << 24);
 	(*in)->ctx.params2 = cpu_to_be32(offset << 6);
 
 	(*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index);
@@ -648,7 +648,8 @@ static int create_kernel_qp(struct mlx5_ib_dev *dev,
 		goto err_buf;
 	}
 	(*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index);
-	(*in)->ctx.log_pg_sz_remote_qpn = cpu_to_be32((qp->buf.page_shift - 12) << 24);
+	(*in)->ctx.log_pg_sz_remote_qpn =
+		cpu_to_be32((qp->buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT) << 24);
 	/* Set "fast registration enabled" for all kernel QPs */
 	(*in)->ctx.params1 |= cpu_to_be32(1 << 11);
 	(*in)->ctx.sq_crq_size |= cpu_to_be16(1 << 4);
diff --git a/drivers/infiniband/hw/mlx5/srq.c b/drivers/infiniband/hw/mlx5/srq.c
index dbc2c7188c5e..210b3eaf188a 100644
--- a/drivers/infiniband/hw/mlx5/srq.c
+++ b/drivers/infiniband/hw/mlx5/srq.c
@@ -123,7 +123,7 @@ static int create_srq_user(struct ib_pd *pd, struct mlx5_ib_srq *srq,
 		goto err_in;
 	}
 
-	(*in)->ctx.log_pg_sz = page_shift - 12;
+	(*in)->ctx.log_pg_sz = page_shift - MLX5_ADAPTER_PAGE_SHIFT;
 	(*in)->ctx.pgoff_cqn = cpu_to_be32(offset << 26);
 
 	return 0;
@@ -192,7 +192,7 @@ static int create_srq_kernel(struct mlx5_ib_dev *dev, struct mlx5_ib_srq *srq,
 	}
 	srq->wq_sig = !!srq_signature;
 
-	(*in)->ctx.log_pg_sz = page_shift - 12;
+	(*in)->ctx.log_pg_sz = page_shift - MLX5_ADAPTER_PAGE_SHIFT;
 
 	return 0;
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
index 6b4b436840bd..64a61b286b2c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
@@ -354,7 +354,7 @@ int mlx5_create_map_eq(struct mlx5_core_dev *dev, struct mlx5_eq *eq, u8 vecidx,
 	in->hdr.opcode = cpu_to_be16(MLX5_CMD_OP_CREATE_EQ);
 	in->ctx.log_sz_usr_page = cpu_to_be32(ilog2(eq->nent) << 24 | uar->index);
 	in->ctx.intr = vecidx;
-	in->ctx.log_page_size = eq->buf.page_shift - 12;
+	in->ctx.log_page_size = eq->buf.page_shift - MLX5_ADAPTER_PAGE_SHIFT;
 	in->events_mask = cpu_to_be64(mask);
 
 	err = mlx5_cmd_exec(dev, in, inlen, &out, sizeof(out));
diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index 3d789f43e34b..da78875807fc 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -230,6 +230,10 @@ enum {
 	MLX5_MAX_PAGE_SHIFT		= 31
 };
 
+enum {
+	MLX5_ADAPTER_PAGE_SHIFT		= 12
+};
+
 enum {
 	MLX5_CAP_OFF_DCT		= 41,
 	MLX5_CAP_OFF_CMDIF_CSUM		= 46,
-- 
cgit 


From 6ebacdfc07ca61ba258693c9b4c88f1ffbe8ccd7 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 6 Sep 2013 11:50:46 +0300
Subject: RDMA/ocrdma: Silence an integer underflow warning

We recently added a cap on "max_wqe_allocated" in 43a6b4025c
('RDMA/ocrdma: Create IRD queue fix').

My static checker complains that the cap has a problem because it
casts large values to negative.  "attrs->cap.max_send_wr" is a u32.
It comes from the user, but it's capped in ocrdma_check_qp_params() so
it can't wrap here.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/ocrdma/ocrdma_hw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
index 50219ab2279d..56bf32fcb62c 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
@@ -1783,7 +1783,7 @@ static int ocrdma_set_create_qp_sq_cmd(struct ocrdma_create_qp_req *cmd,
 	u32 max_sges = attrs->cap.max_send_sge;
 
 	/* QP1 may exceed 127 */
-	max_wqe_allocated = min_t(int, attrs->cap.max_send_wr + 1,
+	max_wqe_allocated = min_t(u32, attrs->cap.max_send_wr + 1,
 				dev->attr.max_wqe);
 
 	status = ocrdma_build_q_conf(&max_wqe_allocated,
-- 
cgit 


From 1852d1da3b4723d7db0d490f54c07442b3e1c452 Mon Sep 17 00:00:00 2001
From: Naresh Gottumukkala <bgottumukkala@emulex.com>
Date: Fri, 6 Sep 2013 15:02:47 +0530
Subject: RDMA/ocrdma: Fix a crash in rmmod

1) ocrdma_remove_free() is called from a call_rcu callback funtion
   context, which can be a bottom-half context. So the code in
   ocrdma_remove_free should not sleep.

   But ocrdma_cleanup_hw() can sleep, So move it ocrdma_remove()
   instead of ocrdma_remove_free.

2) Fix a couple of kbuild test robot warnings.

Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/ocrdma/ocrdma.h       | 53 +++++++++++++++--------------
 drivers/infiniband/hw/ocrdma/ocrdma_main.c  |  7 ++--
 drivers/infiniband/hw/ocrdma/ocrdma_verbs.c |  2 +-
 3 files changed, 32 insertions(+), 30 deletions(-)

diff --git a/drivers/infiniband/hw/ocrdma/ocrdma.h b/drivers/infiniband/hw/ocrdma/ocrdma.h
index adc11d14f878..294dd27b601e 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma.h
+++ b/drivers/infiniband/hw/ocrdma/ocrdma.h
@@ -122,6 +122,32 @@ struct mqe_ctx {
 	bool cmd_done;
 };
 
+struct ocrdma_hw_mr {
+	u32 lkey;
+	u8 fr_mr;
+	u8 remote_atomic;
+	u8 remote_rd;
+	u8 remote_wr;
+	u8 local_rd;
+	u8 local_wr;
+	u8 mw_bind;
+	u8 rsvd;
+	u64 len;
+	struct ocrdma_pbl *pbl_table;
+	u32 num_pbls;
+	u32 num_pbes;
+	u32 pbl_size;
+	u32 pbe_size;
+	u64 fbo;
+	u64 va;
+};
+
+struct ocrdma_mr {
+	struct ib_mr ibmr;
+	struct ib_umem *umem;
+	struct ocrdma_hw_mr hwmr;
+};
+
 struct ocrdma_dev {
 	struct ib_device ibdev;
 	struct ocrdma_dev_attr attr;
@@ -169,7 +195,7 @@ struct ocrdma_dev {
 	struct list_head entry;
 	struct rcu_head rcu;
 	int id;
-	u64 stag_arr[OCRDMA_MAX_STAG];
+	struct ocrdma_mr *stag_arr[OCRDMA_MAX_STAG];
 	u16 pvid;
 };
 
@@ -294,31 +320,6 @@ struct ocrdma_qp {
 	u16 db_cache;
 };
 
-struct ocrdma_hw_mr {
-	u32 lkey;
-	u8 fr_mr;
-	u8 remote_atomic;
-	u8 remote_rd;
-	u8 remote_wr;
-	u8 local_rd;
-	u8 local_wr;
-	u8 mw_bind;
-	u8 rsvd;
-	u64 len;
-	struct ocrdma_pbl *pbl_table;
-	u32 num_pbls;
-	u32 num_pbes;
-	u32 pbl_size;
-	u32 pbe_size;
-	u64 fbo;
-	u64 va;
-};
-
-struct ocrdma_mr {
-	struct ib_mr ibmr;
-	struct ib_umem *umem;
-	struct ocrdma_hw_mr hwmr;
-};
 
 struct ocrdma_ucontext {
 	struct ib_ucontext ibucontext;
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
index 0ce7674621ea..91443bcb9e0e 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c
@@ -452,9 +452,6 @@ static void ocrdma_remove_free(struct rcu_head *rcu)
 {
 	struct ocrdma_dev *dev = container_of(rcu, struct ocrdma_dev, rcu);
 
-	ocrdma_free_resources(dev);
-	ocrdma_cleanup_hw(dev);
-
 	idr_remove(&ocrdma_dev_id, dev->id);
 	kfree(dev->mbx_cmd);
 	ib_dealloc_device(&dev->ibdev);
@@ -470,6 +467,10 @@ static void ocrdma_remove(struct ocrdma_dev *dev)
 	spin_lock(&ocrdma_devlist_lock);
 	list_del_rcu(&dev->entry);
 	spin_unlock(&ocrdma_devlist_lock);
+
+	ocrdma_free_resources(dev);
+	ocrdma_cleanup_hw(dev);
+
 	call_rcu(&dev->rcu, ocrdma_remove_free);
 }
 
diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
index 69f1d1221a6b..d4fbf916d3cc 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -2839,7 +2839,7 @@ struct ib_mr *ocrdma_alloc_frmr(struct ib_pd *ibpd, int max_page_list_len)
 		goto mbx_err;
 	mr->ibmr.rkey = mr->hwmr.lkey;
 	mr->ibmr.lkey = mr->hwmr.lkey;
-	dev->stag_arr[(mr->hwmr.lkey >> 8) & (OCRDMA_MAX_STAG - 1)] = (unsigned long) mr;
+	dev->stag_arr[(mr->hwmr.lkey >> 8) & (OCRDMA_MAX_STAG - 1)] = mr;
 	return &mr->ibmr;
 mbx_err:
 	ocrdma_free_mr_pbl_tbl(dev, &mr->hwmr);
-- 
cgit 


From d5e3f378337581af86a8b86a4db8fd6e164eae3c Mon Sep 17 00:00:00 2001
From: Naresh Gottumukkala <bgottumukkala@emulex.com>
Date: Mon, 28 Oct 2013 17:29:34 +0530
Subject: RDMA/ocrdma: Remove redundant check in ocrdma_build_fr()

Remove the redundant check of comparing if a 32-bit value is greater
than 0xffffffffULL.

Reported by Dan Carpenter.

Signed-off-by: Naresh Gottumukkala <bgottumukkala@emulex.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
index d4fbf916d3cc..7686dceadd29 100644
--- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
+++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
@@ -1981,9 +1981,7 @@ static int ocrdma_build_fr(struct ocrdma_qp *qp, struct ocrdma_hdr_wqe *hdr,
 
 	wqe_size = roundup(wqe_size, OCRDMA_WQE_ALIGN_BYTES);
 
-	if ((wr->wr.fast_reg.page_list_len >
-		qp->dev->attr.max_pages_per_frmr) ||
-		(wr->wr.fast_reg.length > 0xffffffffULL))
+	if (wr->wr.fast_reg.page_list_len > qp->dev->attr.max_pages_per_frmr)
 		return -EINVAL;
 
 	hdr->cw |= (OCRDMA_FR_MR << OCRDMA_WQE_OPCODE_SHIFT);
-- 
cgit 


From 4adcf7fb6783e354aab38824d803fa8c4f8e8a27 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Fri, 4 Oct 2013 09:29:06 -0400
Subject: IB/ipath: Convert ipath_user_sdma_pin_pages() to use
 get_user_pages_fast()

ipath_user_sdma_queue_pkts() gets called with mmap_sem held for
writing.  Except for get_user_pages() deep down in
ipath_user_sdma_pin_pages() we don't seem to need mmap_sem at all.

Even more interestingly the function ipath_user_sdma_queue_pkts() (and
also ipath_user_sdma_coalesce() called somewhat later) call
copy_from_user() which can hit a page fault and we deadlock on trying
to get mmap_sem when handling that fault.  So just make
ipath_user_sdma_pin_pages() use get_user_pages_fast() and leave
mmap_sem locking for mm.

This deadlock has actually been observed in the wild when the node
is under memory pressure.

Cc: <stable@vger.kernel.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>

[ Merged in fix for call to get_user_pages_fast from Tetsuo Handa
  <penguin-kernel@I-love.SAKURA.ne.jp>.  - Roland ]

Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/ipath/ipath_user_sdma.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/infiniband/hw/ipath/ipath_user_sdma.c b/drivers/infiniband/hw/ipath/ipath_user_sdma.c
index f5cb13b21445..cc04b7ba3488 100644
--- a/drivers/infiniband/hw/ipath/ipath_user_sdma.c
+++ b/drivers/infiniband/hw/ipath/ipath_user_sdma.c
@@ -280,9 +280,7 @@ static int ipath_user_sdma_pin_pages(const struct ipath_devdata *dd,
 	int j;
 	int ret;
 
-	ret = get_user_pages(current, current->mm, addr,
-			     npages, 0, 1, pages, NULL);
-
+	ret = get_user_pages_fast(addr, npages, 0, pages);
 	if (ret != npages) {
 		int i;
 
@@ -811,10 +809,7 @@ int ipath_user_sdma_writev(struct ipath_devdata *dd,
 	while (dim) {
 		const int mxp = 8;
 
-		down_write(&current->mm->mmap_sem);
 		ret = ipath_user_sdma_queue_pkts(dd, pq, &list, iov, dim, mxp);
-		up_write(&current->mm->mmap_sem);
-
 		if (ret <= 0)
 			goto done_unlock;
 		else {
-- 
cgit 


From 603e7729920e42b3c2f4dbfab9eef4878cb6e8fa Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Fri, 4 Oct 2013 09:29:12 -0400
Subject: IB/qib: Convert qib_user_sdma_pin_pages() to use
 get_user_pages_fast()

qib_user_sdma_queue_pkts() gets called with mmap_sem held for
writing. Except for get_user_pages() deep down in
qib_user_sdma_pin_pages() we don't seem to need mmap_sem at all.  Even
more interestingly the function qib_user_sdma_queue_pkts() (and also
qib_user_sdma_coalesce() called somewhat later) call copy_from_user()
which can hit a page fault and we deadlock on trying to get mmap_sem
when handling that fault.

So just make qib_user_sdma_pin_pages() use get_user_pages_fast() and
leave mmap_sem locking for mm.

This deadlock has actually been observed in the wild when the node
is under memory pressure.

Cc: <stable@vger.kernel.org>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/qib/qib_user_sdma.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/infiniband/hw/qib/qib_user_sdma.c b/drivers/infiniband/hw/qib/qib_user_sdma.c
index d0a0ea0c14d6..165aee2ca8a0 100644
--- a/drivers/infiniband/hw/qib/qib_user_sdma.c
+++ b/drivers/infiniband/hw/qib/qib_user_sdma.c
@@ -594,8 +594,7 @@ static int qib_user_sdma_pin_pages(const struct qib_devdata *dd,
 		else
 			j = npages;
 
-		ret = get_user_pages(current, current->mm, addr,
-			     j, 0, 1, pages, NULL);
+		ret = get_user_pages_fast(addr, j, 0, pages);
 		if (ret != j) {
 			i = 0;
 			j = ret;
@@ -1294,11 +1293,8 @@ int qib_user_sdma_writev(struct qib_ctxtdata *rcd,
 		int mxp = 8;
 		int ndesc = 0;
 
-		down_write(&current->mm->mmap_sem);
 		ret = qib_user_sdma_queue_pkts(dd, ppd, pq,
 				iov, dim, &list, &mxp, &ndesc);
-		up_write(&current->mm->mmap_sem);
-
 		if (ret < 0)
 			goto done_unlock;
 		else {
-- 
cgit 


From 78a5886472085a6e458824858a8c8338113aec4e Mon Sep 17 00:00:00 2001
From: Mike Marciniszyn <mike.marciniszyn@intel.com>
Date: Thu, 24 Oct 2013 11:40:37 -0400
Subject: IB/qib: Fix checkpatch __packed warnings

Convert __attribute__ ((packed)) to __packed.

Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/qib/qib_mad.h   | 14 +++++++-------
 drivers/infiniband/hw/qib/qib_verbs.h | 10 +++++-----
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/infiniband/hw/qib/qib_mad.h b/drivers/infiniband/hw/qib/qib_mad.h
index 28874f8606f8..941d4d50d8e7 100644
--- a/drivers/infiniband/hw/qib/qib_mad.h
+++ b/drivers/infiniband/hw/qib/qib_mad.h
@@ -54,7 +54,7 @@ struct ib_node_info {
 	__be32 revision;
 	u8 local_port_num;
 	u8 vendor_id[3];
-} __attribute__ ((packed));
+} __packed;
 
 struct ib_mad_notice_attr {
 	u8 generic_type;
@@ -73,7 +73,7 @@ struct ib_mad_notice_attr {
 			__be16	reserved;
 			__be16	lid;		/* where violation happened */
 			u8	port_num;	/* where violation happened */
-		} __attribute__ ((packed)) ntc_129_131;
+		} __packed ntc_129_131;
 
 		struct {
 			__be16	reserved;
@@ -83,14 +83,14 @@ struct ib_mad_notice_attr {
 			__be32	new_cap_mask;	/* new capability mask */
 			u8	reserved3;
 			u8	change_flags;	/* low 3 bits only */
-		} __attribute__ ((packed)) ntc_144;
+		} __packed ntc_144;
 
 		struct {
 			__be16	reserved;
 			__be16	lid;		/* lid where sys guid changed */
 			__be16	reserved2;
 			__be64	new_sys_guid;
-		} __attribute__ ((packed)) ntc_145;
+		} __packed ntc_145;
 
 		struct {
 			__be16	reserved;
@@ -104,7 +104,7 @@ struct ib_mad_notice_attr {
 			u8	reserved3;
 			u8	dr_trunc_hop;
 			u8	dr_rtn_path[30];
-		} __attribute__ ((packed)) ntc_256;
+		} __packed ntc_256;
 
 		struct {
 			__be16		reserved;
@@ -115,7 +115,7 @@ struct ib_mad_notice_attr {
 			__be32		qp2;	/* high 8 bits reserved */
 			union ib_gid	gid1;
 			union ib_gid	gid2;
-		} __attribute__ ((packed)) ntc_257_258;
+		} __packed ntc_257_258;
 
 	} details;
 };
@@ -209,7 +209,7 @@ struct ib_pma_portcounters_cong {
 	__be64 port_rcv_packets;
 	__be64 port_xmit_wait;
 	__be64 port_adr_events;
-} __attribute__ ((packed));
+} __packed;
 
 #define IB_PMA_CONG_HW_CONTROL_TIMER            0x00
 #define IB_PMA_CONG_HW_CONTROL_SAMPLE           0x01
diff --git a/drivers/infiniband/hw/qib/qib_verbs.h b/drivers/infiniband/hw/qib/qib_verbs.h
index 012e2c7575ad..a01c7d2cf541 100644
--- a/drivers/infiniband/hw/qib/qib_verbs.h
+++ b/drivers/infiniband/hw/qib/qib_verbs.h
@@ -150,14 +150,14 @@ struct ib_reth {
 	__be64 vaddr;
 	__be32 rkey;
 	__be32 length;
-} __attribute__ ((packed));
+} __packed;
 
 struct ib_atomic_eth {
 	__be32 vaddr[2];        /* unaligned so access as 2 32-bit words */
 	__be32 rkey;
 	__be64 swap_data;
 	__be64 compare_data;
-} __attribute__ ((packed));
+} __packed;
 
 struct qib_other_headers {
 	__be32 bth[3];
@@ -178,7 +178,7 @@ struct qib_other_headers {
 		__be32 aeth;
 		struct ib_atomic_eth atomic_eth;
 	} u;
-} __attribute__ ((packed));
+} __packed;
 
 /*
  * Note that UD packets with a GRH header are 8+40+12+8 = 68 bytes
@@ -195,12 +195,12 @@ struct qib_ib_header {
 		} l;
 		struct qib_other_headers oth;
 	} u;
-} __attribute__ ((packed));
+} __packed;
 
 struct qib_pio_header {
 	__le32 pbc[2];
 	struct qib_ib_header hdr;
-} __attribute__ ((packed));
+} __packed;
 
 /*
  * There is one struct qib_mcast for each multicast GID.
-- 
cgit 


From 2fadd83184d58701f1116ca578465b5a75f9417c Mon Sep 17 00:00:00 2001
From: Mike Marciniszyn <mike.marciniszyn@intel.com>
Date: Fri, 25 Oct 2013 11:17:59 -0400
Subject: IB/qib: Fix txselect regression

Commit 7fac33014f54("IB/qib: checkpatch fixes") was overzealous in
removing a simple_strtoul for a parse routine, setup_txselect().  That
routine is required to handle a multi-value string.

Unwind that aspect of the fix.

Cc: <stable@vger.kernel.org>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/qib/qib_iba7322.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/infiniband/hw/qib/qib_iba7322.c b/drivers/infiniband/hw/qib/qib_iba7322.c
index 016e7429adf6..5bfc02f450e6 100644
--- a/drivers/infiniband/hw/qib/qib_iba7322.c
+++ b/drivers/infiniband/hw/qib/qib_iba7322.c
@@ -6190,21 +6190,20 @@ static int setup_txselect(const char *str, struct kernel_param *kp)
 {
 	struct qib_devdata *dd;
 	unsigned long val;
-	int ret;
-
+	char *n;
 	if (strlen(str) >= MAX_ATTEN_LEN) {
 		pr_info("txselect_values string too long\n");
 		return -ENOSPC;
 	}
-	ret = kstrtoul(str, 0, &val);
-	if (ret || val >= (TXDDS_TABLE_SZ + TXDDS_EXTRA_SZ +
+	val = simple_strtoul(str, &n, 0);
+	if (n == str || val >= (TXDDS_TABLE_SZ + TXDDS_EXTRA_SZ +
 				TXDDS_MFG_SZ)) {
 		pr_info("txselect_values must start with a number < %d\n",
 			TXDDS_TABLE_SZ + TXDDS_EXTRA_SZ + TXDDS_MFG_SZ);
-		return ret ? ret : -EINVAL;
+		return -EINVAL;
 	}
-
 	strcpy(txselect_list, str);
+
 	list_for_each_entry(dd, &qib_dev_list, list)
 		if (dd->deviceid == PCI_DEVICE_ID_QLOGIC_IB_7322)
 			set_no_qsfp_atten(dd, 1);
-- 
cgit 


From 7bb312e4a2f323fa460bbf9f33eeb00b5dabdb6b Mon Sep 17 00:00:00 2001
From: Vu Pham <vuhuong@mellanox.com>
Date: Sat, 26 Oct 2013 14:31:27 +0200
Subject: IB/srp: Make transport layer retry count configurable

Allow the InfiniBand RC retry count to be configured by the user as an
option in the target login string.  Reducing this retry count allows to
reduce the path failover time.

Signed-off-by: Vu Pham <vu@mellanox.com>

[ bvanassche: Rewrote patch description / changed default retry count ]

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 Documentation/ABI/stable/sysfs-driver-ib_srp |  2 ++
 drivers/infiniband/ulp/srp/ib_srp.c          | 24 +++++++++++++++++++++++-
 drivers/infiniband/ulp/srp/ib_srp.h          |  1 +
 3 files changed, 26 insertions(+), 1 deletion(-)

diff --git a/Documentation/ABI/stable/sysfs-driver-ib_srp b/Documentation/ABI/stable/sysfs-driver-ib_srp
index 5c53d28f775c..18e9b279ebb1 100644
--- a/Documentation/ABI/stable/sysfs-driver-ib_srp
+++ b/Documentation/ABI/stable/sysfs-driver-ib_srp
@@ -61,6 +61,8 @@ Description:	Interface for making ib_srp connect to a new target.
 		  interrupt is handled by a different CPU then the comp_vector
 		  parameter can be used to spread the SRP completion workload
 		  over multiple CPU's.
+		* tl_retry_count, a number in the range 2..7 specifying the
+		  IB RC retry count.
 
 What:		/sys/class/infiniband_srp/srp-<hca>-<port_number>/ibdev
 Date:		January 2, 2006
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index f93baf8254c4..11ebf3e7646a 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -390,7 +390,7 @@ static int srp_send_req(struct srp_target_port *target)
 	req->param.responder_resources	      = 4;
 	req->param.remote_cm_response_timeout = 20;
 	req->param.local_cm_response_timeout  = 20;
-	req->param.retry_count 		      = 7;
+	req->param.retry_count                = target->tl_retry_count;
 	req->param.rnr_retry_count 	      = 7;
 	req->param.max_cm_retries 	      = 15;
 
@@ -1907,6 +1907,14 @@ static ssize_t show_comp_vector(struct device *dev,
 	return sprintf(buf, "%d\n", target->comp_vector);
 }
 
+static ssize_t show_tl_retry_count(struct device *dev,
+				   struct device_attribute *attr, char *buf)
+{
+	struct srp_target_port *target = host_to_target(class_to_shost(dev));
+
+	return sprintf(buf, "%d\n", target->tl_retry_count);
+}
+
 static ssize_t show_cmd_sg_entries(struct device *dev,
 				   struct device_attribute *attr, char *buf)
 {
@@ -1934,6 +1942,7 @@ static DEVICE_ATTR(zero_req_lim,    S_IRUGO, show_zero_req_lim,	   NULL);
 static DEVICE_ATTR(local_ib_port,   S_IRUGO, show_local_ib_port,   NULL);
 static DEVICE_ATTR(local_ib_device, S_IRUGO, show_local_ib_device, NULL);
 static DEVICE_ATTR(comp_vector,     S_IRUGO, show_comp_vector,     NULL);
+static DEVICE_ATTR(tl_retry_count,  S_IRUGO, show_tl_retry_count,  NULL);
 static DEVICE_ATTR(cmd_sg_entries,  S_IRUGO, show_cmd_sg_entries,  NULL);
 static DEVICE_ATTR(allow_ext_sg,    S_IRUGO, show_allow_ext_sg,    NULL);
 
@@ -1949,6 +1958,7 @@ static struct device_attribute *srp_host_attrs[] = {
 	&dev_attr_local_ib_port,
 	&dev_attr_local_ib_device,
 	&dev_attr_comp_vector,
+	&dev_attr_tl_retry_count,
 	&dev_attr_cmd_sg_entries,
 	&dev_attr_allow_ext_sg,
 	NULL
@@ -2073,6 +2083,7 @@ enum {
 	SRP_OPT_ALLOW_EXT_SG	= 1 << 10,
 	SRP_OPT_SG_TABLESIZE	= 1 << 11,
 	SRP_OPT_COMP_VECTOR	= 1 << 12,
+	SRP_OPT_TL_RETRY_COUNT	= 1 << 13,
 	SRP_OPT_ALL		= (SRP_OPT_ID_EXT	|
 				   SRP_OPT_IOC_GUID	|
 				   SRP_OPT_DGID		|
@@ -2094,6 +2105,7 @@ static const match_table_t srp_opt_tokens = {
 	{ SRP_OPT_ALLOW_EXT_SG,		"allow_ext_sg=%u"	},
 	{ SRP_OPT_SG_TABLESIZE,		"sg_tablesize=%u"	},
 	{ SRP_OPT_COMP_VECTOR,		"comp_vector=%u"	},
+	{ SRP_OPT_TL_RETRY_COUNT,	"tl_retry_count=%u"	},
 	{ SRP_OPT_ERR,			NULL 			}
 };
 
@@ -2257,6 +2269,15 @@ static int srp_parse_options(const char *buf, struct srp_target_port *target)
 			target->comp_vector = token;
 			break;
 
+		case SRP_OPT_TL_RETRY_COUNT:
+			if (match_int(args, &token) || token < 2 || token > 7) {
+				pr_warn("bad tl_retry_count parameter '%s' (must be a number between 2 and 7)\n",
+					p);
+				goto out;
+			}
+			target->tl_retry_count = token;
+			break;
+
 		default:
 			pr_warn("unknown parameter or missing value '%s' in target creation request\n",
 				p);
@@ -2311,6 +2332,7 @@ static ssize_t srp_create_target(struct device *dev,
 	target->cmd_sg_cnt	= cmd_sg_entries;
 	target->sg_tablesize	= indirect_sg_entries ? : cmd_sg_entries;
 	target->allow_ext_sg	= allow_ext_sg;
+	target->tl_retry_count	= 7;
 
 	ret = srp_parse_options(buf, target);
 	if (ret)
diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h
index e641088c14dc..84d821b24ec7 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.h
+++ b/drivers/infiniband/ulp/srp/ib_srp.h
@@ -157,6 +157,7 @@ struct srp_target_port {
 	unsigned int		scsi_id;
 	unsigned int		sg_tablesize;
 	int			comp_vector;
+	int			tl_retry_count;
 
 	struct ib_sa_path_rec	path;
 	__be16			orig_dgid[8];
-- 
cgit 


From 9dd69a600a680fab1c9235a644c886d8d6a2da2a Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Sat, 26 Oct 2013 14:32:30 +0200
Subject: IB/srp: Keep rport as long as the IB transport layer

Keep the rport data structure around after srp_remove_host() has
finished until cleanup of the IB transport layer has finished
completely. This is necessary because later patches use the rport
pointer inside the queuecommand callback. Without this patch
accessing the rport from inside a queuecommand callback is racy
because srp_remove_host() must be invoked before scsi_remove_host()
and because the queuecommand callback could get invoked after
srp_remove_host() has finished. In other words, without this patch
the queuecommand callback can get invoked after the rport data
structure has been freed.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/ulp/srp/ib_srp.c |  3 +++
 drivers/infiniband/ulp/srp/ib_srp.h |  1 +
 drivers/scsi/scsi_transport_srp.c   | 18 ++++++++++++++++++
 include/scsi/scsi_transport_srp.h   |  2 ++
 4 files changed, 24 insertions(+)

diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 11ebf3e7646a..6edab7855f5e 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -528,11 +528,13 @@ static void srp_remove_target(struct srp_target_port *target)
 	WARN_ON_ONCE(target->state != SRP_TARGET_REMOVED);
 
 	srp_del_scsi_host_attr(target->scsi_host);
+	srp_rport_get(target->rport);
 	srp_remove_host(target->scsi_host);
 	scsi_remove_host(target->scsi_host);
 	srp_disconnect_target(target);
 	ib_destroy_cm_id(target->cm_id);
 	srp_free_target_ib(target);
+	srp_rport_put(target->rport);
 	srp_free_req_data(target);
 	scsi_host_put(target->scsi_host);
 }
@@ -2004,6 +2006,7 @@ static int srp_add_target(struct srp_host *host, struct srp_target_port *target)
 	}
 
 	rport->lld_data = target;
+	target->rport = rport;
 
 	spin_lock(&host->target_lock);
 	list_add_tail(&target->list, &host->target_list);
diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h
index 84d821b24ec7..2a1768fcc57d 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.h
+++ b/drivers/infiniband/ulp/srp/ib_srp.h
@@ -153,6 +153,7 @@ struct srp_target_port {
 	u16			io_class;
 	struct srp_host	       *srp_host;
 	struct Scsi_Host       *scsi_host;
+	struct srp_rport       *rport;
 	char			target_name[32];
 	unsigned int		scsi_id;
 	unsigned int		sg_tablesize;
diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c
index f379c7f3034c..f7ba94aa52cb 100644
--- a/drivers/scsi/scsi_transport_srp.c
+++ b/drivers/scsi/scsi_transport_srp.c
@@ -184,6 +184,24 @@ static int srp_host_match(struct attribute_container *cont, struct device *dev)
 	return &i->t.host_attrs.ac == cont;
 }
 
+/**
+ * srp_rport_get() - increment rport reference count
+ */
+void srp_rport_get(struct srp_rport *rport)
+{
+	get_device(&rport->dev);
+}
+EXPORT_SYMBOL(srp_rport_get);
+
+/**
+ * srp_rport_put() - decrement rport reference count
+ */
+void srp_rport_put(struct srp_rport *rport)
+{
+	put_device(&rport->dev);
+}
+EXPORT_SYMBOL(srp_rport_put);
+
 /**
  * srp_rport_add - add a SRP remote port to the device hierarchy
  * @shost:	scsi host the remote port is connected to.
diff --git a/include/scsi/scsi_transport_srp.h b/include/scsi/scsi_transport_srp.h
index ff0f04ac91aa..5a2d2d1081c1 100644
--- a/include/scsi/scsi_transport_srp.h
+++ b/include/scsi/scsi_transport_srp.h
@@ -38,6 +38,8 @@ extern struct scsi_transport_template *
 srp_attach_transport(struct srp_function_template *);
 extern void srp_release_transport(struct scsi_transport_template *);
 
+extern void srp_rport_get(struct srp_rport *rport);
+extern void srp_rport_put(struct srp_rport *rport);
 extern struct srp_rport *srp_rport_add(struct Scsi_Host *,
 				       struct srp_rport_identifiers *);
 extern void srp_rport_del(struct srp_rport *);
-- 
cgit 


From 29c17324803c8a3bb5b2b69309e43571164cc4de Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Sat, 26 Oct 2013 14:33:30 +0200
Subject: scsi_transport_srp: Add transport layer error handling

Add the necessary functions in the SRP transport module to allow an
SRP initiator driver to implement transport layer error handling
similar to the functionality already provided by the FC transport
layer. This includes:

- Support for implementing fast_io_fail_tmo, the time that should
  elapse after having detected a transport layer problem and
  before failing I/O.
- Support for implementing dev_loss_tmo, the time that should
  elapse after having detected a transport layer problem and
  before removing a remote port.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 Documentation/ABI/stable/sysfs-transport-srp |  31 ++
 drivers/scsi/scsi_transport_srp.c            | 430 ++++++++++++++++++++++++++-
 include/scsi/scsi_transport_srp.h            |  74 ++++-
 3 files changed, 532 insertions(+), 3 deletions(-)

diff --git a/Documentation/ABI/stable/sysfs-transport-srp b/Documentation/ABI/stable/sysfs-transport-srp
index b36fb0dc13c8..8b6acc775b71 100644
--- a/Documentation/ABI/stable/sysfs-transport-srp
+++ b/Documentation/ABI/stable/sysfs-transport-srp
@@ -5,6 +5,24 @@ Contact:	linux-scsi@vger.kernel.org, linux-rdma@vger.kernel.org
 Description:	Instructs an SRP initiator to disconnect from a target and to
 		remove all LUNs imported from that target.
 
+What:		/sys/class/srp_remote_ports/port-<h>:<n>/dev_loss_tmo
+Date:		February 1, 2014
+KernelVersion:	3.13
+Contact:	linux-scsi@vger.kernel.org, linux-rdma@vger.kernel.org
+Description:	Number of seconds the SCSI layer will wait after a transport
+		layer error has been observed before removing a target port.
+		Zero means immediate removal. Setting this attribute to "off"
+		will disable the dev_loss timer.
+
+What:		/sys/class/srp_remote_ports/port-<h>:<n>/fast_io_fail_tmo
+Date:		February 1, 2014
+KernelVersion:	3.13
+Contact:	linux-scsi@vger.kernel.org, linux-rdma@vger.kernel.org
+Description:	Number of seconds the SCSI layer will wait after a transport
+		layer error has been observed before failing I/O. Zero means
+		failing I/O immediately. Setting this attribute to "off" will
+		disable the fast_io_fail timer.
+
 What:		/sys/class/srp_remote_ports/port-<h>:<n>/port_id
 Date:		June 27, 2007
 KernelVersion:	2.6.24
@@ -17,3 +35,16 @@ Date:		June 27, 2007
 KernelVersion:	2.6.24
 Contact:	linux-scsi@vger.kernel.org
 Description:	Role of the remote port. Either "SRP Initiator" or "SRP Target".
+
+What:		/sys/class/srp_remote_ports/port-<h>:<n>/state
+Date:		February 1, 2014
+KernelVersion:	3.13
+Contact:	linux-scsi@vger.kernel.org, linux-rdma@vger.kernel.org
+Description:	State of the transport layer used for communication with the
+		remote port. "running" if the transport layer is operational;
+		"blocked" if a transport layer error has been encountered but
+		the fast_io_fail_tmo timer has not yet fired; "fail-fast"
+		after the fast_io_fail_tmo timer has fired and before the
+		"dev_loss_tmo" timer has fired; "lost" after the
+		"dev_loss_tmo" timer has fired and before the port is finally
+		removed.
diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c
index f7ba94aa52cb..2696e26b3423 100644
--- a/drivers/scsi/scsi_transport_srp.c
+++ b/drivers/scsi/scsi_transport_srp.c
@@ -24,12 +24,15 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/string.h>
+#include <linux/delay.h>
 
 #include <scsi/scsi.h>
+#include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_device.h>
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_transport.h>
 #include <scsi/scsi_transport_srp.h>
+#include "scsi_priv.h"
 #include "scsi_transport_srp_internal.h"
 
 struct srp_host_attrs {
@@ -38,7 +41,7 @@ struct srp_host_attrs {
 #define to_srp_host_attrs(host)	((struct srp_host_attrs *)(host)->shost_data)
 
 #define SRP_HOST_ATTRS 0
-#define SRP_RPORT_ATTRS 3
+#define SRP_RPORT_ATTRS 6
 
 struct srp_internal {
 	struct scsi_transport_template t;
@@ -54,6 +57,34 @@ struct srp_internal {
 
 #define	dev_to_rport(d)	container_of(d, struct srp_rport, dev)
 #define transport_class_to_srp_rport(dev) dev_to_rport((dev)->parent)
+static inline struct Scsi_Host *rport_to_shost(struct srp_rport *r)
+{
+	return dev_to_shost(r->dev.parent);
+}
+
+/**
+ * srp_tmo_valid() - check timeout combination validity
+ *
+ * The combination of the timeout parameters must be such that SCSI commands
+ * are finished in a reasonable time. Hence do not allow the fast I/O fail
+ * timeout to exceed SCSI_DEVICE_BLOCK_MAX_TIMEOUT. Furthermore, these
+ * parameters must be such that multipath can detect failed paths timely.
+ * Hence do not allow both parameters to be disabled simultaneously.
+ */
+int srp_tmo_valid(int fast_io_fail_tmo, int dev_loss_tmo)
+{
+	if (fast_io_fail_tmo < 0 && dev_loss_tmo < 0)
+		return -EINVAL;
+	if (fast_io_fail_tmo > SCSI_DEVICE_BLOCK_MAX_TIMEOUT)
+		return -EINVAL;
+	if (dev_loss_tmo >= LONG_MAX / HZ)
+		return -EINVAL;
+	if (fast_io_fail_tmo >= 0 && dev_loss_tmo >= 0 &&
+	    fast_io_fail_tmo >= dev_loss_tmo)
+		return -EINVAL;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(srp_tmo_valid);
 
 static int srp_host_setup(struct transport_container *tc, struct device *dev,
 			  struct device *cdev)
@@ -134,10 +165,383 @@ static ssize_t store_srp_rport_delete(struct device *dev,
 
 static DEVICE_ATTR(delete, S_IWUSR, NULL, store_srp_rport_delete);
 
+static ssize_t show_srp_rport_state(struct device *dev,
+				    struct device_attribute *attr,
+				    char *buf)
+{
+	static const char *const state_name[] = {
+		[SRP_RPORT_RUNNING]	= "running",
+		[SRP_RPORT_BLOCKED]	= "blocked",
+		[SRP_RPORT_FAIL_FAST]	= "fail-fast",
+		[SRP_RPORT_LOST]	= "lost",
+	};
+	struct srp_rport *rport = transport_class_to_srp_rport(dev);
+	enum srp_rport_state state = rport->state;
+
+	return sprintf(buf, "%s\n",
+		       (unsigned)state < ARRAY_SIZE(state_name) ?
+		       state_name[state] : "???");
+}
+
+static DEVICE_ATTR(state, S_IRUGO, show_srp_rport_state, NULL);
+
+static ssize_t srp_show_tmo(char *buf, int tmo)
+{
+	return tmo >= 0 ? sprintf(buf, "%d\n", tmo) : sprintf(buf, "off\n");
+}
+
+static int srp_parse_tmo(int *tmo, const char *buf)
+{
+	int res = 0;
+
+	if (strncmp(buf, "off", 3) != 0)
+		res = kstrtoint(buf, 0, tmo);
+	else
+		*tmo = -1;
+
+	return res;
+}
+
+static ssize_t show_srp_rport_fast_io_fail_tmo(struct device *dev,
+					       struct device_attribute *attr,
+					       char *buf)
+{
+	struct srp_rport *rport = transport_class_to_srp_rport(dev);
+
+	return srp_show_tmo(buf, rport->fast_io_fail_tmo);
+}
+
+static ssize_t store_srp_rport_fast_io_fail_tmo(struct device *dev,
+						struct device_attribute *attr,
+						const char *buf, size_t count)
+{
+	struct srp_rport *rport = transport_class_to_srp_rport(dev);
+	int res;
+	int fast_io_fail_tmo;
+
+	res = srp_parse_tmo(&fast_io_fail_tmo, buf);
+	if (res)
+		goto out;
+	res = srp_tmo_valid(fast_io_fail_tmo, rport->dev_loss_tmo);
+	if (res)
+		goto out;
+	rport->fast_io_fail_tmo = fast_io_fail_tmo;
+	res = count;
+
+out:
+	return res;
+}
+
+static DEVICE_ATTR(fast_io_fail_tmo, S_IRUGO | S_IWUSR,
+		   show_srp_rport_fast_io_fail_tmo,
+		   store_srp_rport_fast_io_fail_tmo);
+
+static ssize_t show_srp_rport_dev_loss_tmo(struct device *dev,
+					   struct device_attribute *attr,
+					   char *buf)
+{
+	struct srp_rport *rport = transport_class_to_srp_rport(dev);
+
+	return srp_show_tmo(buf, rport->dev_loss_tmo);
+}
+
+static ssize_t store_srp_rport_dev_loss_tmo(struct device *dev,
+					    struct device_attribute *attr,
+					    const char *buf, size_t count)
+{
+	struct srp_rport *rport = transport_class_to_srp_rport(dev);
+	int res;
+	int dev_loss_tmo;
+
+	res = srp_parse_tmo(&dev_loss_tmo, buf);
+	if (res)
+		goto out;
+	res = srp_tmo_valid(rport->fast_io_fail_tmo, dev_loss_tmo);
+	if (res)
+		goto out;
+	rport->dev_loss_tmo = dev_loss_tmo;
+	res = count;
+
+out:
+	return res;
+}
+
+static DEVICE_ATTR(dev_loss_tmo, S_IRUGO | S_IWUSR,
+		   show_srp_rport_dev_loss_tmo,
+		   store_srp_rport_dev_loss_tmo);
+
+static int srp_rport_set_state(struct srp_rport *rport,
+			       enum srp_rport_state new_state)
+{
+	enum srp_rport_state old_state = rport->state;
+
+	lockdep_assert_held(&rport->mutex);
+
+	switch (new_state) {
+	case SRP_RPORT_RUNNING:
+		switch (old_state) {
+		case SRP_RPORT_LOST:
+			goto invalid;
+		default:
+			break;
+		}
+		break;
+	case SRP_RPORT_BLOCKED:
+		switch (old_state) {
+		case SRP_RPORT_RUNNING:
+			break;
+		default:
+			goto invalid;
+		}
+		break;
+	case SRP_RPORT_FAIL_FAST:
+		switch (old_state) {
+		case SRP_RPORT_LOST:
+			goto invalid;
+		default:
+			break;
+		}
+		break;
+	case SRP_RPORT_LOST:
+		break;
+	}
+	rport->state = new_state;
+	return 0;
+
+invalid:
+	return -EINVAL;
+}
+
+static void __rport_fail_io_fast(struct srp_rport *rport)
+{
+	struct Scsi_Host *shost = rport_to_shost(rport);
+	struct srp_internal *i;
+
+	lockdep_assert_held(&rport->mutex);
+
+	if (srp_rport_set_state(rport, SRP_RPORT_FAIL_FAST))
+		return;
+	scsi_target_unblock(rport->dev.parent, SDEV_TRANSPORT_OFFLINE);
+
+	/* Involve the LLD if possible to terminate all I/O on the rport. */
+	i = to_srp_internal(shost->transportt);
+	if (i->f->terminate_rport_io)
+		i->f->terminate_rport_io(rport);
+}
+
+/**
+ * rport_fast_io_fail_timedout() - fast I/O failure timeout handler
+ */
+static void rport_fast_io_fail_timedout(struct work_struct *work)
+{
+	struct srp_rport *rport = container_of(to_delayed_work(work),
+					struct srp_rport, fast_io_fail_work);
+	struct Scsi_Host *shost = rport_to_shost(rport);
+
+	pr_info("fast_io_fail_tmo expired for SRP %s / %s.\n",
+		dev_name(&rport->dev), dev_name(&shost->shost_gendev));
+
+	mutex_lock(&rport->mutex);
+	if (rport->state == SRP_RPORT_BLOCKED)
+		__rport_fail_io_fast(rport);
+	mutex_unlock(&rport->mutex);
+}
+
+/**
+ * rport_dev_loss_timedout() - device loss timeout handler
+ */
+static void rport_dev_loss_timedout(struct work_struct *work)
+{
+	struct srp_rport *rport = container_of(to_delayed_work(work),
+					struct srp_rport, dev_loss_work);
+	struct Scsi_Host *shost = rport_to_shost(rport);
+	struct srp_internal *i = to_srp_internal(shost->transportt);
+
+	pr_info("dev_loss_tmo expired for SRP %s / %s.\n",
+		dev_name(&rport->dev), dev_name(&shost->shost_gendev));
+
+	mutex_lock(&rport->mutex);
+	WARN_ON(srp_rport_set_state(rport, SRP_RPORT_LOST) != 0);
+	scsi_target_unblock(rport->dev.parent, SDEV_TRANSPORT_OFFLINE);
+	mutex_unlock(&rport->mutex);
+
+	i->f->rport_delete(rport);
+}
+
+static void __srp_start_tl_fail_timers(struct srp_rport *rport)
+{
+	struct Scsi_Host *shost = rport_to_shost(rport);
+	int fast_io_fail_tmo, dev_loss_tmo;
+
+	lockdep_assert_held(&rport->mutex);
+
+	if (!rport->deleted) {
+		fast_io_fail_tmo = rport->fast_io_fail_tmo;
+		dev_loss_tmo = rport->dev_loss_tmo;
+		pr_debug("%s current state: %d\n",
+			 dev_name(&shost->shost_gendev), rport->state);
+
+		if (fast_io_fail_tmo >= 0 &&
+		    srp_rport_set_state(rport, SRP_RPORT_BLOCKED) == 0) {
+			pr_debug("%s new state: %d\n",
+				 dev_name(&shost->shost_gendev),
+				 rport->state);
+			scsi_target_block(&shost->shost_gendev);
+			queue_delayed_work(system_long_wq,
+					   &rport->fast_io_fail_work,
+					   1UL * fast_io_fail_tmo * HZ);
+		}
+		if (dev_loss_tmo >= 0)
+			queue_delayed_work(system_long_wq,
+					   &rport->dev_loss_work,
+					   1UL * dev_loss_tmo * HZ);
+	} else {
+		pr_debug("%s has already been deleted\n",
+			 dev_name(&shost->shost_gendev));
+		srp_rport_set_state(rport, SRP_RPORT_FAIL_FAST);
+		scsi_target_unblock(&shost->shost_gendev,
+				    SDEV_TRANSPORT_OFFLINE);
+	}
+}
+
+/**
+ * srp_start_tl_fail_timers() - start the transport layer failure timers
+ *
+ * Start the transport layer fast I/O failure and device loss timers. Do not
+ * modify a timer that was already started.
+ */
+void srp_start_tl_fail_timers(struct srp_rport *rport)
+{
+	mutex_lock(&rport->mutex);
+	__srp_start_tl_fail_timers(rport);
+	mutex_unlock(&rport->mutex);
+}
+EXPORT_SYMBOL(srp_start_tl_fail_timers);
+
+/**
+ * scsi_request_fn_active() - number of kernel threads inside scsi_request_fn()
+ */
+static int scsi_request_fn_active(struct Scsi_Host *shost)
+{
+	struct scsi_device *sdev;
+	struct request_queue *q;
+	int request_fn_active = 0;
+
+	shost_for_each_device(sdev, shost) {
+		q = sdev->request_queue;
+
+		spin_lock_irq(q->queue_lock);
+		request_fn_active += q->request_fn_active;
+		spin_unlock_irq(q->queue_lock);
+	}
+
+	return request_fn_active;
+}
+
+/**
+ * srp_reconnect_rport() - reconnect to an SRP target port
+ *
+ * Blocks SCSI command queueing before invoking reconnect() such that
+ * queuecommand() won't be invoked concurrently with reconnect() from outside
+ * the SCSI EH. This is important since a reconnect() implementation may
+ * reallocate resources needed by queuecommand().
+ *
+ * Notes:
+ * - This function neither waits until outstanding requests have finished nor
+ *   tries to abort these. It is the responsibility of the reconnect()
+ *   function to finish outstanding commands before reconnecting to the target
+ *   port.
+ * - It is the responsibility of the caller to ensure that the resources
+ *   reallocated by the reconnect() function won't be used while this function
+ *   is in progress. One possible strategy is to invoke this function from
+ *   the context of the SCSI EH thread only. Another possible strategy is to
+ *   lock the rport mutex inside each SCSI LLD callback that can be invoked by
+ *   the SCSI EH (the scsi_host_template.eh_*() functions and also the
+ *   scsi_host_template.queuecommand() function).
+ */
+int srp_reconnect_rport(struct srp_rport *rport)
+{
+	struct Scsi_Host *shost = rport_to_shost(rport);
+	struct srp_internal *i = to_srp_internal(shost->transportt);
+	struct scsi_device *sdev;
+	int res;
+
+	pr_debug("SCSI host %s\n", dev_name(&shost->shost_gendev));
+
+	res = mutex_lock_interruptible(&rport->mutex);
+	if (res)
+		goto out;
+	scsi_target_block(&shost->shost_gendev);
+	while (scsi_request_fn_active(shost))
+		msleep(20);
+	res = i->f->reconnect(rport);
+	pr_debug("%s (state %d): transport.reconnect() returned %d\n",
+		 dev_name(&shost->shost_gendev), rport->state, res);
+	if (res == 0) {
+		cancel_delayed_work(&rport->fast_io_fail_work);
+		cancel_delayed_work(&rport->dev_loss_work);
+
+		srp_rport_set_state(rport, SRP_RPORT_RUNNING);
+		scsi_target_unblock(&shost->shost_gendev, SDEV_RUNNING);
+		/*
+		 * If the SCSI error handler has offlined one or more devices,
+		 * invoking scsi_target_unblock() won't change the state of
+		 * these devices into running so do that explicitly.
+		 */
+		spin_lock_irq(shost->host_lock);
+		__shost_for_each_device(sdev, shost)
+			if (sdev->sdev_state == SDEV_OFFLINE)
+				sdev->sdev_state = SDEV_RUNNING;
+		spin_unlock_irq(shost->host_lock);
+	} else if (rport->state == SRP_RPORT_RUNNING) {
+		/*
+		 * srp_reconnect_rport() was invoked with fast_io_fail
+		 * off. Mark the port as failed and start the TL failure
+		 * timers if these had not yet been started.
+		 */
+		__rport_fail_io_fast(rport);
+		scsi_target_unblock(&shost->shost_gendev,
+				    SDEV_TRANSPORT_OFFLINE);
+		__srp_start_tl_fail_timers(rport);
+	} else if (rport->state != SRP_RPORT_BLOCKED) {
+		scsi_target_unblock(&shost->shost_gendev,
+				    SDEV_TRANSPORT_OFFLINE);
+	}
+	mutex_unlock(&rport->mutex);
+
+out:
+	return res;
+}
+EXPORT_SYMBOL(srp_reconnect_rport);
+
+/**
+ * srp_timed_out() - SRP transport intercept of the SCSI timeout EH
+ *
+ * If a timeout occurs while an rport is in the blocked state, ask the SCSI
+ * EH to continue waiting (BLK_EH_RESET_TIMER). Otherwise let the SCSI core
+ * handle the timeout (BLK_EH_NOT_HANDLED).
+ *
+ * Note: This function is called from soft-IRQ context and with the request
+ * queue lock held.
+ */
+static enum blk_eh_timer_return srp_timed_out(struct scsi_cmnd *scmd)
+{
+	struct scsi_device *sdev = scmd->device;
+	struct Scsi_Host *shost = sdev->host;
+	struct srp_internal *i = to_srp_internal(shost->transportt);
+
+	pr_debug("timeout for sdev %s\n", dev_name(&sdev->sdev_gendev));
+	return i->f->reset_timer_if_blocked && scsi_device_blocked(sdev) ?
+		BLK_EH_RESET_TIMER : BLK_EH_NOT_HANDLED;
+}
+
 static void srp_rport_release(struct device *dev)
 {
 	struct srp_rport *rport = dev_to_rport(dev);
 
+	cancel_delayed_work_sync(&rport->fast_io_fail_work);
+	cancel_delayed_work_sync(&rport->dev_loss_work);
+
 	put_device(dev->parent);
 	kfree(rport);
 }
@@ -214,12 +618,15 @@ struct srp_rport *srp_rport_add(struct Scsi_Host *shost,
 {
 	struct srp_rport *rport;
 	struct device *parent = &shost->shost_gendev;
+	struct srp_internal *i = to_srp_internal(shost->transportt);
 	int id, ret;
 
 	rport = kzalloc(sizeof(*rport), GFP_KERNEL);
 	if (!rport)
 		return ERR_PTR(-ENOMEM);
 
+	mutex_init(&rport->mutex);
+
 	device_initialize(&rport->dev);
 
 	rport->dev.parent = get_device(parent);
@@ -228,6 +635,13 @@ struct srp_rport *srp_rport_add(struct Scsi_Host *shost,
 	memcpy(rport->port_id, ids->port_id, sizeof(rport->port_id));
 	rport->roles = ids->roles;
 
+	rport->fast_io_fail_tmo = i->f->fast_io_fail_tmo ?
+		*i->f->fast_io_fail_tmo : 15;
+	rport->dev_loss_tmo = i->f->dev_loss_tmo ? *i->f->dev_loss_tmo : 60;
+	INIT_DELAYED_WORK(&rport->fast_io_fail_work,
+			  rport_fast_io_fail_timedout);
+	INIT_DELAYED_WORK(&rport->dev_loss_work, rport_dev_loss_timedout);
+
 	id = atomic_inc_return(&to_srp_host_attrs(shost)->next_port_id);
 	dev_set_name(&rport->dev, "port-%d:%d", shost->host_no, id);
 
@@ -277,6 +691,13 @@ void srp_rport_del(struct srp_rport *rport)
 	transport_remove_device(dev);
 	device_del(dev);
 	transport_destroy_device(dev);
+
+	mutex_lock(&rport->mutex);
+	if (rport->state == SRP_RPORT_BLOCKED)
+		__rport_fail_io_fast(rport);
+	rport->deleted = true;
+	mutex_unlock(&rport->mutex);
+
 	put_device(dev);
 }
 EXPORT_SYMBOL_GPL(srp_rport_del);
@@ -328,6 +749,8 @@ srp_attach_transport(struct srp_function_template *ft)
 	if (!i)
 		return NULL;
 
+	i->t.eh_timed_out = srp_timed_out;
+
 	i->t.tsk_mgmt_response = srp_tsk_mgmt_response;
 	i->t.it_nexus_response = srp_it_nexus_response;
 
@@ -345,6 +768,11 @@ srp_attach_transport(struct srp_function_template *ft)
 	count = 0;
 	i->rport_attrs[count++] = &dev_attr_port_id;
 	i->rport_attrs[count++] = &dev_attr_roles;
+	if (ft->has_rport_state) {
+		i->rport_attrs[count++] = &dev_attr_state;
+		i->rport_attrs[count++] = &dev_attr_fast_io_fail_tmo;
+		i->rport_attrs[count++] = &dev_attr_dev_loss_tmo;
+	}
 	if (ft->rport_delete)
 		i->rport_attrs[count++] = &dev_attr_delete;
 	i->rport_attrs[count++] = NULL;
diff --git a/include/scsi/scsi_transport_srp.h b/include/scsi/scsi_transport_srp.h
index 5a2d2d1081c1..ee7001677f64 100644
--- a/include/scsi/scsi_transport_srp.h
+++ b/include/scsi/scsi_transport_srp.h
@@ -13,6 +13,26 @@ struct srp_rport_identifiers {
 	u8 roles;
 };
 
+/**
+ * enum srp_rport_state - SRP transport layer state
+ * @SRP_RPORT_RUNNING:   Transport layer operational.
+ * @SRP_RPORT_BLOCKED:   Transport layer not operational; fast I/O fail timer
+ *                       is running and I/O has been blocked.
+ * @SRP_RPORT_FAIL_FAST: Fast I/O fail timer has expired; fail I/O fast.
+ * @SRP_RPORT_LOST:      Device loss timer has expired; port is being removed.
+ */
+enum srp_rport_state {
+	SRP_RPORT_RUNNING,
+	SRP_RPORT_BLOCKED,
+	SRP_RPORT_FAIL_FAST,
+	SRP_RPORT_LOST,
+};
+
+/**
+ * struct srp_rport
+ * @lld_data: LLD private data.
+ * @mutex:    Protects against concurrent rport fast_io_fail / dev_loss_tmo.
+ */
 struct srp_rport {
 	/* for initiator and target drivers */
 
@@ -23,11 +43,38 @@ struct srp_rport {
 
 	/* for initiator drivers */
 
-	void *lld_data;	/* LLD private data */
+	void			*lld_data;
+
+	struct mutex		mutex;
+	enum srp_rport_state	state;
+	bool			deleted;
+	int			fast_io_fail_tmo;
+	int			dev_loss_tmo;
+	struct delayed_work	fast_io_fail_work;
+	struct delayed_work	dev_loss_work;
 };
 
+/**
+ * struct srp_function_template
+ * @has_rport_state: Whether or not to create the state, fast_io_fail_tmo and
+ *     dev_loss_tmo sysfs attribute for an rport.
+ * @reset_timer_if_blocked: Whether or srp_timed_out() should reset the command
+ *     timer if the device on which it has been queued is blocked.
+ * @fast_io_fail_tmo: If not NULL, points to the default fast_io_fail_tmo value.
+ * @dev_loss_tmo: If not NULL, points to the default dev_loss_tmo value.
+ * @reconnect: Callback function for reconnecting to the target. See also
+ *     srp_reconnect_rport().
+ * @terminate_rport_io: Callback function for terminating all outstanding I/O
+ *     requests for an rport.
+ */
 struct srp_function_template {
 	/* for initiator drivers */
+	bool has_rport_state;
+	bool reset_timer_if_blocked;
+	int *fast_io_fail_tmo;
+	int *dev_loss_tmo;
+	int (*reconnect)(struct srp_rport *rport);
+	void (*terminate_rport_io)(struct srp_rport *rport);
 	void (*rport_delete)(struct srp_rport *rport);
 	/* for target drivers */
 	int (* tsk_mgmt_response)(struct Scsi_Host *, u64, u64, int);
@@ -43,7 +90,30 @@ extern void srp_rport_put(struct srp_rport *rport);
 extern struct srp_rport *srp_rport_add(struct Scsi_Host *,
 				       struct srp_rport_identifiers *);
 extern void srp_rport_del(struct srp_rport *);
-
+extern int srp_tmo_valid(int fast_io_fail_tmo, int dev_loss_tmo);
+extern int srp_reconnect_rport(struct srp_rport *rport);
+extern void srp_start_tl_fail_timers(struct srp_rport *rport);
 extern void srp_remove_host(struct Scsi_Host *);
 
+/**
+ * srp_chkready() - evaluate the transport layer state before I/O
+ *
+ * Returns a SCSI result code that can be returned by the LLD queuecommand()
+ * implementation. The role of this function is similar to that of
+ * fc_remote_port_chkready().
+ */
+static inline int srp_chkready(struct srp_rport *rport)
+{
+	switch (rport->state) {
+	case SRP_RPORT_RUNNING:
+	case SRP_RPORT_BLOCKED:
+	default:
+		return 0;
+	case SRP_RPORT_FAIL_FAST:
+		return DID_TRANSPORT_FAILFAST << 16;
+	case SRP_RPORT_LOST:
+		return DID_NO_CONNECT << 16;
+	}
+}
+
 #endif
-- 
cgit 


From ed9b2264fb393327a6c8a4229d8df55df596188e Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Sat, 26 Oct 2013 14:34:27 +0200
Subject: IB/srp: Use SRP transport layer error recovery

Enable fast_io_fail_tmo and dev_loss_tmo functionality for the IB SRP
initiator.  Add kernel module parameters that allow to specify default
values for these parameters.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/ulp/srp/ib_srp.c | 141 ++++++++++++++++++++++++++----------
 drivers/infiniband/ulp/srp/ib_srp.h |   1 -
 2 files changed, 101 insertions(+), 41 deletions(-)

diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 6edab7855f5e..15b4d2ce4989 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -86,6 +86,27 @@ module_param(topspin_workarounds, int, 0444);
 MODULE_PARM_DESC(topspin_workarounds,
 		 "Enable workarounds for Topspin/Cisco SRP target bugs if != 0");
 
+static struct kernel_param_ops srp_tmo_ops;
+
+static int srp_fast_io_fail_tmo = 15;
+module_param_cb(fast_io_fail_tmo, &srp_tmo_ops, &srp_fast_io_fail_tmo,
+		S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(fast_io_fail_tmo,
+		 "Number of seconds between the observation of a transport"
+		 " layer error and failing all I/O. \"off\" means that this"
+		 " functionality is disabled.");
+
+static int srp_dev_loss_tmo = 60;
+module_param_cb(dev_loss_tmo, &srp_tmo_ops, &srp_dev_loss_tmo,
+		S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(dev_loss_tmo,
+		 "Maximum number of seconds that the SRP transport should"
+		 " insulate transport layer errors. After this time has been"
+		 " exceeded the SCSI host is removed. Should be"
+		 " between 1 and " __stringify(SCSI_DEVICE_BLOCK_MAX_TIMEOUT)
+		 " if fast_io_fail_tmo has not been set. \"off\" means that"
+		 " this functionality is disabled.");
+
 static void srp_add_one(struct ib_device *device);
 static void srp_remove_one(struct ib_device *device);
 static void srp_recv_completion(struct ib_cq *cq, void *target_ptr);
@@ -102,6 +123,44 @@ static struct ib_client srp_client = {
 
 static struct ib_sa_client srp_sa_client;
 
+static int srp_tmo_get(char *buffer, const struct kernel_param *kp)
+{
+	int tmo = *(int *)kp->arg;
+
+	if (tmo >= 0)
+		return sprintf(buffer, "%d", tmo);
+	else
+		return sprintf(buffer, "off");
+}
+
+static int srp_tmo_set(const char *val, const struct kernel_param *kp)
+{
+	int tmo, res;
+
+	if (strncmp(val, "off", 3) != 0) {
+		res = kstrtoint(val, 0, &tmo);
+		if (res)
+			goto out;
+	} else {
+		tmo = -1;
+	}
+	if (kp->arg == &srp_fast_io_fail_tmo)
+		res = srp_tmo_valid(tmo, srp_dev_loss_tmo);
+	else
+		res = srp_tmo_valid(srp_fast_io_fail_tmo, tmo);
+	if (res)
+		goto out;
+	*(int *)kp->arg = tmo;
+
+out:
+	return res;
+}
+
+static struct kernel_param_ops srp_tmo_ops = {
+	.get = srp_tmo_get,
+	.set = srp_tmo_set,
+};
+
 static inline struct srp_target_port *host_to_target(struct Scsi_Host *host)
 {
 	return (struct srp_target_port *) host->hostdata;
@@ -688,23 +747,42 @@ static void srp_free_req(struct srp_target_port *target,
 	spin_unlock_irqrestore(&target->lock, flags);
 }
 
-static void srp_reset_req(struct srp_target_port *target, struct srp_request *req)
+static void srp_finish_req(struct srp_target_port *target,
+			   struct srp_request *req, int result)
 {
 	struct scsi_cmnd *scmnd = srp_claim_req(target, req, NULL);
 
 	if (scmnd) {
 		srp_free_req(target, req, scmnd, 0);
-		scmnd->result = DID_RESET << 16;
+		scmnd->result = result;
 		scmnd->scsi_done(scmnd);
 	}
 }
 
-static int srp_reconnect_target(struct srp_target_port *target)
+static void srp_terminate_io(struct srp_rport *rport)
 {
-	struct Scsi_Host *shost = target->scsi_host;
-	int i, ret;
+	struct srp_target_port *target = rport->lld_data;
+	int i;
+
+	for (i = 0; i < SRP_CMD_SQ_SIZE; ++i) {
+		struct srp_request *req = &target->req_ring[i];
+		srp_finish_req(target, req, DID_TRANSPORT_FAILFAST << 16);
+	}
+}
 
-	scsi_target_block(&shost->shost_gendev);
+/*
+ * It is up to the caller to ensure that srp_rport_reconnect() calls are
+ * serialized and that no concurrent srp_queuecommand(), srp_abort(),
+ * srp_reset_device() or srp_reset_host() calls will occur while this function
+ * is in progress. One way to realize that is not to call this function
+ * directly but to call srp_reconnect_rport() instead since that last function
+ * serializes calls of this function via rport->mutex and also blocks
+ * srp_queuecommand() calls before invoking this function.
+ */
+static int srp_rport_reconnect(struct srp_rport *rport)
+{
+	struct srp_target_port *target = rport->lld_data;
+	int i, ret;
 
 	srp_disconnect_target(target);
 	/*
@@ -725,8 +803,7 @@ static int srp_reconnect_target(struct srp_target_port *target)
 
 	for (i = 0; i < SRP_CMD_SQ_SIZE; ++i) {
 		struct srp_request *req = &target->req_ring[i];
-		if (req->scmnd)
-			srp_reset_req(target, req);
+		srp_finish_req(target, req, DID_RESET << 16);
 	}
 
 	INIT_LIST_HEAD(&target->free_tx);
@@ -736,28 +813,9 @@ static int srp_reconnect_target(struct srp_target_port *target)
 	if (ret == 0)
 		ret = srp_connect_target(target);
 
-	scsi_target_unblock(&shost->shost_gendev, ret == 0 ? SDEV_RUNNING :
-			    SDEV_TRANSPORT_OFFLINE);
-	target->transport_offline = !!ret;
-
-	if (ret)
-		goto err;
-
-	shost_printk(KERN_INFO, target->scsi_host, PFX "reconnect succeeded\n");
-
-	return ret;
-
-err:
-	shost_printk(KERN_ERR, target->scsi_host,
-		     PFX "reconnect failed (%d), removing target port.\n", ret);
-
-	/*
-	 * We couldn't reconnect, so kill our target port off.
-	 * However, we have to defer the real removal because we
-	 * are in the context of the SCSI error handler now, which
-	 * will deadlock if we call scsi_remove_host().
-	 */
-	srp_queue_remove_work(target);
+	if (ret == 0)
+		shost_printk(KERN_INFO, target->scsi_host,
+			     PFX "reconnect succeeded\n");
 
 	return ret;
 }
@@ -1356,10 +1414,11 @@ static int srp_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *scmnd)
 	struct srp_cmd *cmd;
 	struct ib_device *dev;
 	unsigned long flags;
-	int len;
+	int len, result;
 
-	if (unlikely(target->transport_offline)) {
-		scmnd->result = DID_NO_CONNECT << 16;
+	result = srp_chkready(target->rport);
+	if (unlikely(result)) {
+		scmnd->result = result;
 		scmnd->scsi_done(scmnd);
 		return 0;
 	}
@@ -1757,7 +1816,7 @@ static int srp_abort(struct scsi_cmnd *scmnd)
 	if (srp_send_tsk_mgmt(target, req->index, scmnd->device->lun,
 			      SRP_TSK_ABORT_TASK) == 0)
 		ret = SUCCESS;
-	else if (target->transport_offline)
+	else if (target->rport->state == SRP_RPORT_LOST)
 		ret = FAST_IO_FAIL;
 	else
 		ret = FAILED;
@@ -1784,7 +1843,7 @@ static int srp_reset_device(struct scsi_cmnd *scmnd)
 	for (i = 0; i < SRP_CMD_SQ_SIZE; ++i) {
 		struct srp_request *req = &target->req_ring[i];
 		if (req->scmnd && req->scmnd->device == scmnd->device)
-			srp_reset_req(target, req);
+			srp_finish_req(target, req, DID_RESET << 16);
 	}
 
 	return SUCCESS;
@@ -1793,14 +1852,10 @@ static int srp_reset_device(struct scsi_cmnd *scmnd)
 static int srp_reset_host(struct scsi_cmnd *scmnd)
 {
 	struct srp_target_port *target = host_to_target(scmnd->device->host);
-	int ret = FAILED;
 
 	shost_printk(KERN_ERR, target->scsi_host, PFX "SRP reset_host called\n");
 
-	if (!srp_reconnect_target(target))
-		ret = SUCCESS;
-
-	return ret;
+	return srp_reconnect_rport(target->rport) == 0 ? SUCCESS : FAILED;
 }
 
 static int srp_slave_configure(struct scsi_device *sdev)
@@ -2637,7 +2692,13 @@ static void srp_remove_one(struct ib_device *device)
 }
 
 static struct srp_function_template ib_srp_transport_functions = {
+	.has_rport_state	 = true,
+	.reset_timer_if_blocked	 = true,
+	.fast_io_fail_tmo	 = &srp_fast_io_fail_tmo,
+	.dev_loss_tmo		 = &srp_dev_loss_tmo,
+	.reconnect		 = srp_rport_reconnect,
 	.rport_delete		 = srp_rport_delete,
+	.terminate_rport_io	 = srp_terminate_io,
 };
 
 static int __init srp_init_module(void)
diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h
index 2a1768fcc57d..fd1817e48ad4 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.h
+++ b/drivers/infiniband/ulp/srp/ib_srp.h
@@ -140,7 +140,6 @@ struct srp_target_port {
 	unsigned int		cmd_sg_cnt;
 	unsigned int		indirect_size;
 	bool			allow_ext_sg;
-	bool			transport_offline;
 
 	/* Everything above this point is used in the hot path of
 	 * command processing. Try to keep them packed into cachelines.
-- 
cgit 


From c1120f8981fe8ac8dd21092afaf664ba030a76cd Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Sat, 26 Oct 2013 14:35:08 +0200
Subject: IB/srp: Start timers if a transport layer error occurs

Start the reconnect timer, fast_io_fail timer and dev_loss timers if a
transport layer error occurs.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/ulp/srp/ib_srp.c | 19 +++++++++++++++++++
 drivers/infiniband/ulp/srp/ib_srp.h |  1 +
 2 files changed, 20 insertions(+)

diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 15b4d2ce4989..076a3ab7f779 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -593,6 +593,7 @@ static void srp_remove_target(struct srp_target_port *target)
 	srp_disconnect_target(target);
 	ib_destroy_cm_id(target->cm_id);
 	srp_free_target_ib(target);
+	cancel_work_sync(&target->tl_err_work);
 	srp_rport_put(target->rport);
 	srp_free_req_data(target);
 	scsi_host_put(target->scsi_host);
@@ -1362,6 +1363,21 @@ static void srp_handle_recv(struct srp_target_port *target, struct ib_wc *wc)
 			     PFX "Recv failed with error code %d\n", res);
 }
 
+/**
+ * srp_tl_err_work() - handle a transport layer error
+ *
+ * Note: This function may get invoked before the rport has been created,
+ * hence the target->rport test.
+ */
+static void srp_tl_err_work(struct work_struct *work)
+{
+	struct srp_target_port *target;
+
+	target = container_of(work, struct srp_target_port, tl_err_work);
+	if (target->rport)
+		srp_start_tl_fail_timers(target->rport);
+}
+
 static void srp_handle_qp_err(enum ib_wc_status wc_status,
 			      enum ib_wc_opcode wc_opcode,
 			      struct srp_target_port *target)
@@ -1371,6 +1387,7 @@ static void srp_handle_qp_err(enum ib_wc_status wc_status,
 			     PFX "failed %s status %d\n",
 			     wc_opcode & IB_WC_RECV ? "receive" : "send",
 			     wc_status);
+		queue_work(system_long_wq, &target->tl_err_work);
 	}
 	target->qp_in_error = true;
 }
@@ -1733,6 +1750,7 @@ static int srp_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event)
 		if (ib_send_cm_drep(cm_id, NULL, 0))
 			shost_printk(KERN_ERR, target->scsi_host,
 				     PFX "Sending CM DREP failed\n");
+		queue_work(system_long_wq, &target->tl_err_work);
 		break;
 
 	case IB_CM_TIMEWAIT_EXIT:
@@ -2419,6 +2437,7 @@ static ssize_t srp_create_target(struct device *dev,
 			     sizeof (struct srp_indirect_buf) +
 			     target->cmd_sg_cnt * sizeof (struct srp_direct_buf);
 
+	INIT_WORK(&target->tl_err_work, srp_tl_err_work);
 	INIT_WORK(&target->remove_work, srp_remove_work);
 	spin_lock_init(&target->lock);
 	INIT_LIST_HEAD(&target->free_tx);
diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h
index fd1817e48ad4..446b0452107b 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.h
+++ b/drivers/infiniband/ulp/srp/ib_srp.h
@@ -177,6 +177,7 @@ struct srp_target_port {
 	struct srp_iu	       *rx_ring[SRP_RQ_SIZE];
 	struct srp_request	req_ring[SRP_CMD_SQ_SIZE];
 
+	struct work_struct	tl_err_work;
 	struct work_struct	remove_work;
 
 	struct list_head	list;
-- 
cgit 


From 8c64e4531c3c3bedf11d723196270d4a7553db45 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Sat, 26 Oct 2013 14:35:59 +0200
Subject: scsi_transport_srp: Add periodic reconnect support

Add support for periodically reconnecting to an SRP target until
the dev_loss timer expires. After the tenth reconnection attempt,
gradually slow down subsequent reconnect attempts.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 Documentation/ABI/stable/sysfs-transport-srp |   8 ++
 drivers/infiniband/ulp/srp/ib_srp.c          |   4 +-
 drivers/scsi/scsi_transport_srp.c            | 106 +++++++++++++++++++++++++--
 include/scsi/scsi_transport_srp.h            |  11 ++-
 4 files changed, 118 insertions(+), 11 deletions(-)

diff --git a/Documentation/ABI/stable/sysfs-transport-srp b/Documentation/ABI/stable/sysfs-transport-srp
index 8b6acc775b71..ec7af69fea0a 100644
--- a/Documentation/ABI/stable/sysfs-transport-srp
+++ b/Documentation/ABI/stable/sysfs-transport-srp
@@ -30,6 +30,14 @@ Contact:	linux-scsi@vger.kernel.org
 Description:	16-byte local SRP port identifier in hexadecimal format. An
 		example: 4c:49:4e:55:58:20:56:49:4f:00:00:00:00:00:00:00.
 
+What:		/sys/class/srp_remote_ports/port-<h>:<n>/reconnect_delay
+Date:		February 1, 2014
+KernelVersion:	3.13
+Contact:	linux-scsi@vger.kernel.org, linux-rdma@vger.kernel.org
+Description:	Number of seconds the SCSI layer will wait after a reconnect
+		attempt failed before retrying. Setting this attribute to
+		"off" will disable time-based reconnecting.
+
 What:		/sys/class/srp_remote_ports/port-<h>:<n>/roles
 Date:		June 27, 2007
 KernelVersion:	2.6.24
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 076a3ab7f779..99c893d1c2ac 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -145,9 +145,9 @@ static int srp_tmo_set(const char *val, const struct kernel_param *kp)
 		tmo = -1;
 	}
 	if (kp->arg == &srp_fast_io_fail_tmo)
-		res = srp_tmo_valid(tmo, srp_dev_loss_tmo);
+		res = srp_tmo_valid(-1, tmo, srp_dev_loss_tmo);
 	else
-		res = srp_tmo_valid(srp_fast_io_fail_tmo, tmo);
+		res = srp_tmo_valid(-1, srp_fast_io_fail_tmo, tmo);
 	if (res)
 		goto out;
 	*(int *)kp->arg = tmo;
diff --git a/drivers/scsi/scsi_transport_srp.c b/drivers/scsi/scsi_transport_srp.c
index 2696e26b3423..2700a5a09bd4 100644
--- a/drivers/scsi/scsi_transport_srp.c
+++ b/drivers/scsi/scsi_transport_srp.c
@@ -41,7 +41,7 @@ struct srp_host_attrs {
 #define to_srp_host_attrs(host)	((struct srp_host_attrs *)(host)->shost_data)
 
 #define SRP_HOST_ATTRS 0
-#define SRP_RPORT_ATTRS 6
+#define SRP_RPORT_ATTRS 8
 
 struct srp_internal {
 	struct scsi_transport_template t;
@@ -69,11 +69,13 @@ static inline struct Scsi_Host *rport_to_shost(struct srp_rport *r)
  * are finished in a reasonable time. Hence do not allow the fast I/O fail
  * timeout to exceed SCSI_DEVICE_BLOCK_MAX_TIMEOUT. Furthermore, these
  * parameters must be such that multipath can detect failed paths timely.
- * Hence do not allow both parameters to be disabled simultaneously.
+ * Hence do not allow all three parameters to be disabled simultaneously.
  */
-int srp_tmo_valid(int fast_io_fail_tmo, int dev_loss_tmo)
+int srp_tmo_valid(int reconnect_delay, int fast_io_fail_tmo, int dev_loss_tmo)
 {
-	if (fast_io_fail_tmo < 0 && dev_loss_tmo < 0)
+	if (reconnect_delay < 0 && fast_io_fail_tmo < 0 && dev_loss_tmo < 0)
+		return -EINVAL;
+	if (reconnect_delay == 0)
 		return -EINVAL;
 	if (fast_io_fail_tmo > SCSI_DEVICE_BLOCK_MAX_TIMEOUT)
 		return -EINVAL;
@@ -202,6 +204,56 @@ static int srp_parse_tmo(int *tmo, const char *buf)
 	return res;
 }
 
+static ssize_t show_reconnect_delay(struct device *dev,
+				    struct device_attribute *attr, char *buf)
+{
+	struct srp_rport *rport = transport_class_to_srp_rport(dev);
+
+	return srp_show_tmo(buf, rport->reconnect_delay);
+}
+
+static ssize_t store_reconnect_delay(struct device *dev,
+				     struct device_attribute *attr,
+				     const char *buf, const size_t count)
+{
+	struct srp_rport *rport = transport_class_to_srp_rport(dev);
+	int res, delay;
+
+	res = srp_parse_tmo(&delay, buf);
+	if (res)
+		goto out;
+	res = srp_tmo_valid(delay, rport->fast_io_fail_tmo,
+			    rport->dev_loss_tmo);
+	if (res)
+		goto out;
+
+	if (rport->reconnect_delay <= 0 && delay > 0 &&
+	    rport->state != SRP_RPORT_RUNNING) {
+		queue_delayed_work(system_long_wq, &rport->reconnect_work,
+				   delay * HZ);
+	} else if (delay <= 0) {
+		cancel_delayed_work(&rport->reconnect_work);
+	}
+	rport->reconnect_delay = delay;
+	res = count;
+
+out:
+	return res;
+}
+
+static DEVICE_ATTR(reconnect_delay, S_IRUGO | S_IWUSR, show_reconnect_delay,
+		   store_reconnect_delay);
+
+static ssize_t show_failed_reconnects(struct device *dev,
+				      struct device_attribute *attr, char *buf)
+{
+	struct srp_rport *rport = transport_class_to_srp_rport(dev);
+
+	return sprintf(buf, "%d\n", rport->failed_reconnects);
+}
+
+static DEVICE_ATTR(failed_reconnects, S_IRUGO, show_failed_reconnects, NULL);
+
 static ssize_t show_srp_rport_fast_io_fail_tmo(struct device *dev,
 					       struct device_attribute *attr,
 					       char *buf)
@@ -222,7 +274,8 @@ static ssize_t store_srp_rport_fast_io_fail_tmo(struct device *dev,
 	res = srp_parse_tmo(&fast_io_fail_tmo, buf);
 	if (res)
 		goto out;
-	res = srp_tmo_valid(fast_io_fail_tmo, rport->dev_loss_tmo);
+	res = srp_tmo_valid(rport->reconnect_delay, fast_io_fail_tmo,
+			    rport->dev_loss_tmo);
 	if (res)
 		goto out;
 	rport->fast_io_fail_tmo = fast_io_fail_tmo;
@@ -256,7 +309,8 @@ static ssize_t store_srp_rport_dev_loss_tmo(struct device *dev,
 	res = srp_parse_tmo(&dev_loss_tmo, buf);
 	if (res)
 		goto out;
-	res = srp_tmo_valid(rport->fast_io_fail_tmo, dev_loss_tmo);
+	res = srp_tmo_valid(rport->reconnect_delay, rport->fast_io_fail_tmo,
+			    dev_loss_tmo);
 	if (res)
 		goto out;
 	rport->dev_loss_tmo = dev_loss_tmo;
@@ -312,6 +366,29 @@ invalid:
 	return -EINVAL;
 }
 
+/**
+ * srp_reconnect_work() - reconnect and schedule a new attempt if necessary
+ */
+static void srp_reconnect_work(struct work_struct *work)
+{
+	struct srp_rport *rport = container_of(to_delayed_work(work),
+					struct srp_rport, reconnect_work);
+	struct Scsi_Host *shost = rport_to_shost(rport);
+	int delay, res;
+
+	res = srp_reconnect_rport(rport);
+	if (res != 0) {
+		shost_printk(KERN_ERR, shost,
+			     "reconnect attempt %d failed (%d)\n",
+			     ++rport->failed_reconnects, res);
+		delay = rport->reconnect_delay *
+			min(100, max(1, rport->failed_reconnects - 10));
+		if (delay > 0)
+			queue_delayed_work(system_long_wq,
+					   &rport->reconnect_work, delay * HZ);
+	}
+}
+
 static void __rport_fail_io_fast(struct srp_rport *rport)
 {
 	struct Scsi_Host *shost = rport_to_shost(rport);
@@ -371,16 +448,21 @@ static void rport_dev_loss_timedout(struct work_struct *work)
 static void __srp_start_tl_fail_timers(struct srp_rport *rport)
 {
 	struct Scsi_Host *shost = rport_to_shost(rport);
-	int fast_io_fail_tmo, dev_loss_tmo;
+	int delay, fast_io_fail_tmo, dev_loss_tmo;
 
 	lockdep_assert_held(&rport->mutex);
 
 	if (!rport->deleted) {
+		delay = rport->reconnect_delay;
 		fast_io_fail_tmo = rport->fast_io_fail_tmo;
 		dev_loss_tmo = rport->dev_loss_tmo;
 		pr_debug("%s current state: %d\n",
 			 dev_name(&shost->shost_gendev), rport->state);
 
+		if (delay > 0)
+			queue_delayed_work(system_long_wq,
+					   &rport->reconnect_work,
+					   1UL * delay * HZ);
 		if (fast_io_fail_tmo >= 0 &&
 		    srp_rport_set_state(rport, SRP_RPORT_BLOCKED) == 0) {
 			pr_debug("%s new state: %d\n",
@@ -481,6 +563,7 @@ int srp_reconnect_rport(struct srp_rport *rport)
 		cancel_delayed_work(&rport->fast_io_fail_work);
 		cancel_delayed_work(&rport->dev_loss_work);
 
+		rport->failed_reconnects = 0;
 		srp_rport_set_state(rport, SRP_RPORT_RUNNING);
 		scsi_target_unblock(&shost->shost_gendev, SDEV_RUNNING);
 		/*
@@ -539,6 +622,7 @@ static void srp_rport_release(struct device *dev)
 {
 	struct srp_rport *rport = dev_to_rport(dev);
 
+	cancel_delayed_work_sync(&rport->reconnect_work);
 	cancel_delayed_work_sync(&rport->fast_io_fail_work);
 	cancel_delayed_work_sync(&rport->dev_loss_work);
 
@@ -635,6 +719,10 @@ struct srp_rport *srp_rport_add(struct Scsi_Host *shost,
 	memcpy(rport->port_id, ids->port_id, sizeof(rport->port_id));
 	rport->roles = ids->roles;
 
+	if (i->f->reconnect)
+		rport->reconnect_delay = i->f->reconnect_delay ?
+			*i->f->reconnect_delay : 10;
+	INIT_DELAYED_WORK(&rport->reconnect_work, srp_reconnect_work);
 	rport->fast_io_fail_tmo = i->f->fast_io_fail_tmo ?
 		*i->f->fast_io_fail_tmo : 15;
 	rport->dev_loss_tmo = i->f->dev_loss_tmo ? *i->f->dev_loss_tmo : 60;
@@ -773,6 +861,10 @@ srp_attach_transport(struct srp_function_template *ft)
 		i->rport_attrs[count++] = &dev_attr_fast_io_fail_tmo;
 		i->rport_attrs[count++] = &dev_attr_dev_loss_tmo;
 	}
+	if (ft->reconnect) {
+		i->rport_attrs[count++] = &dev_attr_reconnect_delay;
+		i->rport_attrs[count++] = &dev_attr_failed_reconnects;
+	}
 	if (ft->rport_delete)
 		i->rport_attrs[count++] = &dev_attr_delete;
 	i->rport_attrs[count++] = NULL;
diff --git a/include/scsi/scsi_transport_srp.h b/include/scsi/scsi_transport_srp.h
index ee7001677f64..4ebf6913b7b2 100644
--- a/include/scsi/scsi_transport_srp.h
+++ b/include/scsi/scsi_transport_srp.h
@@ -31,7 +31,8 @@ enum srp_rport_state {
 /**
  * struct srp_rport
  * @lld_data: LLD private data.
- * @mutex:    Protects against concurrent rport fast_io_fail / dev_loss_tmo.
+ * @mutex:    Protects against concurrent rport reconnect / fast_io_fail /
+ *   dev_loss_tmo activity.
  */
 struct srp_rport {
 	/* for initiator and target drivers */
@@ -48,6 +49,9 @@ struct srp_rport {
 	struct mutex		mutex;
 	enum srp_rport_state	state;
 	bool			deleted;
+	int			reconnect_delay;
+	int			failed_reconnects;
+	struct delayed_work	reconnect_work;
 	int			fast_io_fail_tmo;
 	int			dev_loss_tmo;
 	struct delayed_work	fast_io_fail_work;
@@ -60,6 +64,7 @@ struct srp_rport {
  *     dev_loss_tmo sysfs attribute for an rport.
  * @reset_timer_if_blocked: Whether or srp_timed_out() should reset the command
  *     timer if the device on which it has been queued is blocked.
+ * @reconnect_delay: If not NULL, points to the default reconnect_delay value.
  * @fast_io_fail_tmo: If not NULL, points to the default fast_io_fail_tmo value.
  * @dev_loss_tmo: If not NULL, points to the default dev_loss_tmo value.
  * @reconnect: Callback function for reconnecting to the target. See also
@@ -71,6 +76,7 @@ struct srp_function_template {
 	/* for initiator drivers */
 	bool has_rport_state;
 	bool reset_timer_if_blocked;
+	int *reconnect_delay;
 	int *fast_io_fail_tmo;
 	int *dev_loss_tmo;
 	int (*reconnect)(struct srp_rport *rport);
@@ -90,7 +96,8 @@ extern void srp_rport_put(struct srp_rport *rport);
 extern struct srp_rport *srp_rport_add(struct Scsi_Host *,
 				       struct srp_rport_identifiers *);
 extern void srp_rport_del(struct srp_rport *);
-extern int srp_tmo_valid(int fast_io_fail_tmo, int dev_loss_tmo);
+extern int srp_tmo_valid(int reconnect_delay, int fast_io_fail_tmo,
+			 int dev_loss_tmo);
 extern int srp_reconnect_rport(struct srp_rport *rport);
 extern void srp_start_tl_fail_timers(struct srp_rport *rport);
 extern void srp_remove_host(struct Scsi_Host *);
-- 
cgit 


From a95cadb9dafef41a755b11680529c2b49e7f59bd Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Sat, 26 Oct 2013 14:37:17 +0200
Subject: IB/srp: Add periodic reconnect functionality

After a transport layer occurred, periodically try to reconnect
to the target until the dev_loss timer expires.  Protect the
callback functions that can be invoked from inside the SCSI EH
against concurrent invocation with srp_reconnect_rport() via the
rport mutex. Change the default dev_loss_tmo from 60s into 600s
to give the reconnect mechanism a chance to kick in.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/ulp/srp/ib_srp.c | 52 ++++++++++++++++++++++++++++++++-----
 1 file changed, 46 insertions(+), 6 deletions(-)

diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 99c893d1c2ac..ebbe01bdd306 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -88,6 +88,11 @@ MODULE_PARM_DESC(topspin_workarounds,
 
 static struct kernel_param_ops srp_tmo_ops;
 
+static int srp_reconnect_delay = 10;
+module_param_cb(reconnect_delay, &srp_tmo_ops, &srp_reconnect_delay,
+		S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(reconnect_delay, "Time between successive reconnect attempts");
+
 static int srp_fast_io_fail_tmo = 15;
 module_param_cb(fast_io_fail_tmo, &srp_tmo_ops, &srp_fast_io_fail_tmo,
 		S_IRUGO | S_IWUSR);
@@ -96,7 +101,7 @@ MODULE_PARM_DESC(fast_io_fail_tmo,
 		 " layer error and failing all I/O. \"off\" means that this"
 		 " functionality is disabled.");
 
-static int srp_dev_loss_tmo = 60;
+static int srp_dev_loss_tmo = 600;
 module_param_cb(dev_loss_tmo, &srp_tmo_ops, &srp_dev_loss_tmo,
 		S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(dev_loss_tmo,
@@ -144,10 +149,14 @@ static int srp_tmo_set(const char *val, const struct kernel_param *kp)
 	} else {
 		tmo = -1;
 	}
-	if (kp->arg == &srp_fast_io_fail_tmo)
-		res = srp_tmo_valid(-1, tmo, srp_dev_loss_tmo);
+	if (kp->arg == &srp_reconnect_delay)
+		res = srp_tmo_valid(tmo, srp_fast_io_fail_tmo,
+				    srp_dev_loss_tmo);
+	else if (kp->arg == &srp_fast_io_fail_tmo)
+		res = srp_tmo_valid(srp_reconnect_delay, tmo, srp_dev_loss_tmo);
 	else
-		res = srp_tmo_valid(-1, srp_fast_io_fail_tmo, tmo);
+		res = srp_tmo_valid(srp_reconnect_delay, srp_fast_io_fail_tmo,
+				    tmo);
 	if (res)
 		goto out;
 	*(int *)kp->arg = tmo;
@@ -1426,18 +1435,29 @@ static void srp_send_completion(struct ib_cq *cq, void *target_ptr)
 static int srp_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *scmnd)
 {
 	struct srp_target_port *target = host_to_target(shost);
+	struct srp_rport *rport = target->rport;
 	struct srp_request *req;
 	struct srp_iu *iu;
 	struct srp_cmd *cmd;
 	struct ib_device *dev;
 	unsigned long flags;
 	int len, result;
+	const bool in_scsi_eh = !in_interrupt() && current == shost->ehandler;
+
+	/*
+	 * The SCSI EH thread is the only context from which srp_queuecommand()
+	 * can get invoked for blocked devices (SDEV_BLOCK /
+	 * SDEV_CREATED_BLOCK). Avoid racing with srp_reconnect_rport() by
+	 * locking the rport mutex if invoked from inside the SCSI EH.
+	 */
+	if (in_scsi_eh)
+		mutex_lock(&rport->mutex);
 
 	result = srp_chkready(target->rport);
 	if (unlikely(result)) {
 		scmnd->result = result;
 		scmnd->scsi_done(scmnd);
-		return 0;
+		goto unlock_rport;
 	}
 
 	spin_lock_irqsave(&target->lock, flags);
@@ -1482,6 +1502,10 @@ static int srp_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *scmnd)
 		goto err_unmap;
 	}
 
+unlock_rport:
+	if (in_scsi_eh)
+		mutex_unlock(&rport->mutex);
+
 	return 0;
 
 err_unmap:
@@ -1496,6 +1520,9 @@ err_iu:
 err_unlock:
 	spin_unlock_irqrestore(&target->lock, flags);
 
+	if (in_scsi_eh)
+		mutex_unlock(&rport->mutex);
+
 	return SCSI_MLQUEUE_HOST_BUSY;
 }
 
@@ -1780,6 +1807,7 @@ static int srp_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event)
 static int srp_send_tsk_mgmt(struct srp_target_port *target,
 			     u64 req_tag, unsigned int lun, u8 func)
 {
+	struct srp_rport *rport = target->rport;
 	struct ib_device *dev = target->srp_host->srp_dev->dev;
 	struct srp_iu *iu;
 	struct srp_tsk_mgmt *tsk_mgmt;
@@ -1789,12 +1817,20 @@ static int srp_send_tsk_mgmt(struct srp_target_port *target,
 
 	init_completion(&target->tsk_mgmt_done);
 
+	/*
+	 * Lock the rport mutex to avoid that srp_create_target_ib() is
+	 * invoked while a task management function is being sent.
+	 */
+	mutex_lock(&rport->mutex);
 	spin_lock_irq(&target->lock);
 	iu = __srp_get_tx_iu(target, SRP_IU_TSK_MGMT);
 	spin_unlock_irq(&target->lock);
 
-	if (!iu)
+	if (!iu) {
+		mutex_unlock(&rport->mutex);
+
 		return -1;
+	}
 
 	ib_dma_sync_single_for_cpu(dev, iu->dma, sizeof *tsk_mgmt,
 				   DMA_TO_DEVICE);
@@ -1811,8 +1847,11 @@ static int srp_send_tsk_mgmt(struct srp_target_port *target,
 				      DMA_TO_DEVICE);
 	if (srp_post_send(target, iu, sizeof *tsk_mgmt)) {
 		srp_put_tx_iu(target, iu, SRP_IU_TSK_MGMT);
+		mutex_unlock(&rport->mutex);
+
 		return -1;
 	}
+	mutex_unlock(&rport->mutex);
 
 	if (!wait_for_completion_timeout(&target->tsk_mgmt_done,
 					 msecs_to_jiffies(SRP_ABORT_TIMEOUT_MS)))
@@ -2713,6 +2752,7 @@ static void srp_remove_one(struct ib_device *device)
 static struct srp_function_template ib_srp_transport_functions = {
 	.has_rport_state	 = true,
 	.reset_timer_if_blocked	 = true,
+	.reconnect_delay	 = &srp_reconnect_delay,
 	.fast_io_fail_tmo	 = &srp_fast_io_fail_tmo,
 	.dev_loss_tmo		 = &srp_dev_loss_tmo,
 	.reconnect		 = srp_rport_reconnect,
-- 
cgit 


From 848b3082dba4215e886c8a595b61f5b70247b341 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Sat, 26 Oct 2013 14:38:12 +0200
Subject: IB/srp: Export sgid to sysfs

On an initiator system with multiple IB ports it is not yet possible
to figure out what the originating port of an SRP connection is. Hence
make the source GID available in sysfs.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 Documentation/ABI/stable/sysfs-driver-ib_srp |  7 +++++++
 drivers/infiniband/ulp/srp/ib_srp.c          | 10 ++++++++++
 2 files changed, 17 insertions(+)

diff --git a/Documentation/ABI/stable/sysfs-driver-ib_srp b/Documentation/ABI/stable/sysfs-driver-ib_srp
index 18e9b279ebb1..b95067eb5f18 100644
--- a/Documentation/ABI/stable/sysfs-driver-ib_srp
+++ b/Documentation/ABI/stable/sysfs-driver-ib_srp
@@ -155,6 +155,13 @@ Contact:	linux-rdma@vger.kernel.org
 Description:	InfiniBand service ID used for establishing communication with
 		the SRP	target.
 
+What:		/sys/class/scsi_host/host<n>/sgid
+Date:		February 1, 2014
+KernelVersion:	3.13
+Contact:	linux-rdma@vger.kernel.org
+Description:	InfiniBand GID of the source port used for communication with
+		the SRP target.
+
 What:		/sys/class/scsi_host/host<n>/zero_req_lim
 Date:		September 20, 2006
 KernelVersion:	2.6.18
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index ebbe01bdd306..62e1f2a1c522 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -1965,6 +1965,14 @@ static ssize_t show_pkey(struct device *dev, struct device_attribute *attr,
 	return sprintf(buf, "0x%04x\n", be16_to_cpu(target->path.pkey));
 }
 
+static ssize_t show_sgid(struct device *dev, struct device_attribute *attr,
+			 char *buf)
+{
+	struct srp_target_port *target = host_to_target(class_to_shost(dev));
+
+	return sprintf(buf, "%pI6\n", target->path.sgid.raw);
+}
+
 static ssize_t show_dgid(struct device *dev, struct device_attribute *attr,
 			 char *buf)
 {
@@ -2049,6 +2057,7 @@ static DEVICE_ATTR(id_ext,	    S_IRUGO, show_id_ext,	   NULL);
 static DEVICE_ATTR(ioc_guid,	    S_IRUGO, show_ioc_guid,	   NULL);
 static DEVICE_ATTR(service_id,	    S_IRUGO, show_service_id,	   NULL);
 static DEVICE_ATTR(pkey,	    S_IRUGO, show_pkey,		   NULL);
+static DEVICE_ATTR(sgid,	    S_IRUGO, show_sgid,		   NULL);
 static DEVICE_ATTR(dgid,	    S_IRUGO, show_dgid,		   NULL);
 static DEVICE_ATTR(orig_dgid,	    S_IRUGO, show_orig_dgid,	   NULL);
 static DEVICE_ATTR(req_lim,         S_IRUGO, show_req_lim,         NULL);
@@ -2065,6 +2074,7 @@ static struct device_attribute *srp_host_attrs[] = {
 	&dev_attr_ioc_guid,
 	&dev_attr_service_id,
 	&dev_attr_pkey,
+	&dev_attr_sgid,
 	&dev_attr_dgid,
 	&dev_attr_orig_dgid,
 	&dev_attr_req_lim,
-- 
cgit 


From b81d00bddfdccf000f29a5ba5bf7caa8f26fa00b Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Sat, 26 Oct 2013 14:38:47 +0200
Subject: IB/srp: Introduce srp_alloc_req_data()

This patch does not change any functionality.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Cc: Roland Dreier <roland@purestorage.com>
Cc: Vu Pham <vu@mellanox.com>
Cc: Sebastian Riemer <sebastian.riemer@profitbricks.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/ulp/srp/ib_srp.c | 64 +++++++++++++++++++++++--------------
 1 file changed, 40 insertions(+), 24 deletions(-)

diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 62e1f2a1c522..735af11d9b82 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -576,6 +576,42 @@ static void srp_free_req_data(struct srp_target_port *target)
 	}
 }
 
+static int srp_alloc_req_data(struct srp_target_port *target)
+{
+	struct srp_device *srp_dev = target->srp_host->srp_dev;
+	struct ib_device *ibdev = srp_dev->dev;
+	struct srp_request *req;
+	dma_addr_t dma_addr;
+	int i, ret = -ENOMEM;
+
+	INIT_LIST_HEAD(&target->free_reqs);
+
+	for (i = 0; i < SRP_CMD_SQ_SIZE; ++i) {
+		req = &target->req_ring[i];
+		req->fmr_list = kmalloc(target->cmd_sg_cnt * sizeof(void *),
+					GFP_KERNEL);
+		req->map_page = kmalloc(SRP_FMR_SIZE * sizeof(void *),
+					GFP_KERNEL);
+		req->indirect_desc = kmalloc(target->indirect_size, GFP_KERNEL);
+		if (!req->fmr_list || !req->map_page || !req->indirect_desc)
+			goto out;
+
+		dma_addr = ib_dma_map_single(ibdev, req->indirect_desc,
+					     target->indirect_size,
+					     DMA_TO_DEVICE);
+		if (ib_dma_mapping_error(ibdev, dma_addr))
+			goto out;
+
+		req->indirect_dma_addr = dma_addr;
+		req->index = i;
+		list_add_tail(&req->list, &target->free_reqs);
+	}
+	ret = 0;
+
+out:
+	return ret;
+}
+
 /**
  * srp_del_scsi_host_attr() - Remove attributes defined in the host template.
  * @shost: SCSI host whose attributes to remove from sysfs.
@@ -2433,8 +2469,7 @@ static ssize_t srp_create_target(struct device *dev,
 	struct Scsi_Host *target_host;
 	struct srp_target_port *target;
 	struct ib_device *ibdev = host->srp_dev->dev;
-	dma_addr_t dma_addr;
-	int i, ret;
+	int ret;
 
 	target_host = scsi_host_alloc(&srp_template,
 				      sizeof (struct srp_target_port));
@@ -2490,28 +2525,9 @@ static ssize_t srp_create_target(struct device *dev,
 	INIT_WORK(&target->remove_work, srp_remove_work);
 	spin_lock_init(&target->lock);
 	INIT_LIST_HEAD(&target->free_tx);
-	INIT_LIST_HEAD(&target->free_reqs);
-	for (i = 0; i < SRP_CMD_SQ_SIZE; ++i) {
-		struct srp_request *req = &target->req_ring[i];
-
-		req->fmr_list = kmalloc(target->cmd_sg_cnt * sizeof (void *),
-					GFP_KERNEL);
-		req->map_page = kmalloc(SRP_FMR_SIZE * sizeof (void *),
-					GFP_KERNEL);
-		req->indirect_desc = kmalloc(target->indirect_size, GFP_KERNEL);
-		if (!req->fmr_list || !req->map_page || !req->indirect_desc)
-			goto err_free_mem;
-
-		dma_addr = ib_dma_map_single(ibdev, req->indirect_desc,
-					     target->indirect_size,
-					     DMA_TO_DEVICE);
-		if (ib_dma_mapping_error(ibdev, dma_addr))
-			goto err_free_mem;
-
-		req->indirect_dma_addr = dma_addr;
-		req->index = i;
-		list_add_tail(&req->list, &target->free_reqs);
-	}
+	ret = srp_alloc_req_data(target);
+	if (ret)
+		goto err_free_mem;
 
 	ib_query_gid(ibdev, host->port, 0, &target->path.sgid);
 
-- 
cgit 


From 4d73f95f708ce540a85113b00f5363d0593d871d Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Sat, 26 Oct 2013 14:40:37 +0200
Subject: IB/srp: Make queue size configurable

Certain storage configurations, e.g. a sufficiently large array of
hard disks in a RAID configuration, need a queue depth above 64 to
achieve optimal performance. Hence make the queue depth configurable.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Tested-by: Jack Wang <xjtuwjp@gmail.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 Documentation/ABI/stable/sysfs-driver-ib_srp |   4 +
 drivers/infiniband/ulp/srp/ib_srp.c          | 125 ++++++++++++++++++++-------
 drivers/infiniband/ulp/srp/ib_srp.h          |  17 ++--
 3 files changed, 107 insertions(+), 39 deletions(-)

diff --git a/Documentation/ABI/stable/sysfs-driver-ib_srp b/Documentation/ABI/stable/sysfs-driver-ib_srp
index b95067eb5f18..b9688de8455b 100644
--- a/Documentation/ABI/stable/sysfs-driver-ib_srp
+++ b/Documentation/ABI/stable/sysfs-driver-ib_srp
@@ -63,6 +63,10 @@ Description:	Interface for making ib_srp connect to a new target.
 		  over multiple CPU's.
 		* tl_retry_count, a number in the range 2..7 specifying the
 		  IB RC retry count.
+		* queue_size, the maximum number of commands that the
+		  initiator is allowed to queue per SCSI host. The default
+		  value for this parameter is 62. The lowest supported value
+		  is 2.
 
 What:		/sys/class/infiniband_srp/srp-<hca>-<port_number>/ibdev
 Date:		January 2, 2006
diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 735af11d9b82..6aa660d188a3 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -299,16 +299,16 @@ static int srp_create_target_ib(struct srp_target_port *target)
 		return -ENOMEM;
 
 	recv_cq = ib_create_cq(target->srp_host->srp_dev->dev,
-			       srp_recv_completion, NULL, target, SRP_RQ_SIZE,
-			       target->comp_vector);
+			       srp_recv_completion, NULL, target,
+			       target->queue_size, target->comp_vector);
 	if (IS_ERR(recv_cq)) {
 		ret = PTR_ERR(recv_cq);
 		goto err;
 	}
 
 	send_cq = ib_create_cq(target->srp_host->srp_dev->dev,
-			       srp_send_completion, NULL, target, SRP_SQ_SIZE,
-			       target->comp_vector);
+			       srp_send_completion, NULL, target,
+			       target->queue_size, target->comp_vector);
 	if (IS_ERR(send_cq)) {
 		ret = PTR_ERR(send_cq);
 		goto err_recv_cq;
@@ -317,8 +317,8 @@ static int srp_create_target_ib(struct srp_target_port *target)
 	ib_req_notify_cq(recv_cq, IB_CQ_NEXT_COMP);
 
 	init_attr->event_handler       = srp_qp_event;
-	init_attr->cap.max_send_wr     = SRP_SQ_SIZE;
-	init_attr->cap.max_recv_wr     = SRP_RQ_SIZE;
+	init_attr->cap.max_send_wr     = target->queue_size;
+	init_attr->cap.max_recv_wr     = target->queue_size;
 	init_attr->cap.max_recv_sge    = 1;
 	init_attr->cap.max_send_sge    = 1;
 	init_attr->sq_sig_type         = IB_SIGNAL_ALL_WR;
@@ -364,6 +364,10 @@ err:
 	return ret;
 }
 
+/*
+ * Note: this function may be called without srp_alloc_iu_bufs() having been
+ * invoked. Hence the target->[rt]x_ring checks.
+ */
 static void srp_free_target_ib(struct srp_target_port *target)
 {
 	int i;
@@ -375,10 +379,18 @@ static void srp_free_target_ib(struct srp_target_port *target)
 	target->qp = NULL;
 	target->send_cq = target->recv_cq = NULL;
 
-	for (i = 0; i < SRP_RQ_SIZE; ++i)
-		srp_free_iu(target->srp_host, target->rx_ring[i]);
-	for (i = 0; i < SRP_SQ_SIZE; ++i)
-		srp_free_iu(target->srp_host, target->tx_ring[i]);
+	if (target->rx_ring) {
+		for (i = 0; i < target->queue_size; ++i)
+			srp_free_iu(target->srp_host, target->rx_ring[i]);
+		kfree(target->rx_ring);
+		target->rx_ring = NULL;
+	}
+	if (target->tx_ring) {
+		for (i = 0; i < target->queue_size; ++i)
+			srp_free_iu(target->srp_host, target->tx_ring[i]);
+		kfree(target->tx_ring);
+		target->tx_ring = NULL;
+	}
 }
 
 static void srp_path_rec_completion(int status,
@@ -564,7 +576,11 @@ static void srp_free_req_data(struct srp_target_port *target)
 	struct srp_request *req;
 	int i;
 
-	for (i = 0, req = target->req_ring; i < SRP_CMD_SQ_SIZE; ++i, ++req) {
+	if (!target->req_ring)
+		return;
+
+	for (i = 0; i < target->req_ring_size; ++i) {
+		req = &target->req_ring[i];
 		kfree(req->fmr_list);
 		kfree(req->map_page);
 		if (req->indirect_dma_addr) {
@@ -574,6 +590,9 @@ static void srp_free_req_data(struct srp_target_port *target)
 		}
 		kfree(req->indirect_desc);
 	}
+
+	kfree(target->req_ring);
+	target->req_ring = NULL;
 }
 
 static int srp_alloc_req_data(struct srp_target_port *target)
@@ -586,7 +605,12 @@ static int srp_alloc_req_data(struct srp_target_port *target)
 
 	INIT_LIST_HEAD(&target->free_reqs);
 
-	for (i = 0; i < SRP_CMD_SQ_SIZE; ++i) {
+	target->req_ring = kzalloc(target->req_ring_size *
+				   sizeof(*target->req_ring), GFP_KERNEL);
+	if (!target->req_ring)
+		goto out;
+
+	for (i = 0; i < target->req_ring_size; ++i) {
 		req = &target->req_ring[i];
 		req->fmr_list = kmalloc(target->cmd_sg_cnt * sizeof(void *),
 					GFP_KERNEL);
@@ -810,7 +834,7 @@ static void srp_terminate_io(struct srp_rport *rport)
 	struct srp_target_port *target = rport->lld_data;
 	int i;
 
-	for (i = 0; i < SRP_CMD_SQ_SIZE; ++i) {
+	for (i = 0; i < target->req_ring_size; ++i) {
 		struct srp_request *req = &target->req_ring[i];
 		srp_finish_req(target, req, DID_TRANSPORT_FAILFAST << 16);
 	}
@@ -847,13 +871,13 @@ static int srp_rport_reconnect(struct srp_rport *rport)
 	else
 		srp_create_target_ib(target);
 
-	for (i = 0; i < SRP_CMD_SQ_SIZE; ++i) {
+	for (i = 0; i < target->req_ring_size; ++i) {
 		struct srp_request *req = &target->req_ring[i];
 		srp_finish_req(target, req, DID_RESET << 16);
 	}
 
 	INIT_LIST_HEAD(&target->free_tx);
-	for (i = 0; i < SRP_SQ_SIZE; ++i)
+	for (i = 0; i < target->queue_size; ++i)
 		list_add(&target->tx_ring[i]->list, &target->free_tx);
 
 	if (ret == 0)
@@ -1562,11 +1586,24 @@ err_unlock:
 	return SCSI_MLQUEUE_HOST_BUSY;
 }
 
+/*
+ * Note: the resources allocated in this function are freed in
+ * srp_free_target_ib().
+ */
 static int srp_alloc_iu_bufs(struct srp_target_port *target)
 {
 	int i;
 
-	for (i = 0; i < SRP_RQ_SIZE; ++i) {
+	target->rx_ring = kzalloc(target->queue_size * sizeof(*target->rx_ring),
+				  GFP_KERNEL);
+	if (!target->rx_ring)
+		goto err_no_ring;
+	target->tx_ring = kzalloc(target->queue_size * sizeof(*target->tx_ring),
+				  GFP_KERNEL);
+	if (!target->tx_ring)
+		goto err_no_ring;
+
+	for (i = 0; i < target->queue_size; ++i) {
 		target->rx_ring[i] = srp_alloc_iu(target->srp_host,
 						  target->max_ti_iu_len,
 						  GFP_KERNEL, DMA_FROM_DEVICE);
@@ -1574,7 +1611,7 @@ static int srp_alloc_iu_bufs(struct srp_target_port *target)
 			goto err;
 	}
 
-	for (i = 0; i < SRP_SQ_SIZE; ++i) {
+	for (i = 0; i < target->queue_size; ++i) {
 		target->tx_ring[i] = srp_alloc_iu(target->srp_host,
 						  target->max_iu_len,
 						  GFP_KERNEL, DMA_TO_DEVICE);
@@ -1587,16 +1624,18 @@ static int srp_alloc_iu_bufs(struct srp_target_port *target)
 	return 0;
 
 err:
-	for (i = 0; i < SRP_RQ_SIZE; ++i) {
+	for (i = 0; i < target->queue_size; ++i) {
 		srp_free_iu(target->srp_host, target->rx_ring[i]);
-		target->rx_ring[i] = NULL;
-	}
-
-	for (i = 0; i < SRP_SQ_SIZE; ++i) {
 		srp_free_iu(target->srp_host, target->tx_ring[i]);
-		target->tx_ring[i] = NULL;
 	}
 
+
+err_no_ring:
+	kfree(target->tx_ring);
+	target->tx_ring = NULL;
+	kfree(target->rx_ring);
+	target->rx_ring = NULL;
+
 	return -ENOMEM;
 }
 
@@ -1647,6 +1686,9 @@ static void srp_cm_rep_handler(struct ib_cm_id *cm_id,
 		target->scsi_host->can_queue
 			= min(target->req_lim - SRP_TSK_MGMT_SQ_SIZE,
 			      target->scsi_host->can_queue);
+		target->scsi_host->cmd_per_lun
+			= min_t(int, target->scsi_host->can_queue,
+				target->scsi_host->cmd_per_lun);
 	} else {
 		shost_printk(KERN_WARNING, target->scsi_host,
 			     PFX "Unhandled RSP opcode %#x\n", lrsp->opcode);
@@ -1654,7 +1696,7 @@ static void srp_cm_rep_handler(struct ib_cm_id *cm_id,
 		goto error;
 	}
 
-	if (!target->rx_ring[0]) {
+	if (!target->rx_ring) {
 		ret = srp_alloc_iu_bufs(target);
 		if (ret)
 			goto error;
@@ -1674,7 +1716,7 @@ static void srp_cm_rep_handler(struct ib_cm_id *cm_id,
 	if (ret)
 		goto error_free;
 
-	for (i = 0; i < SRP_RQ_SIZE; i++) {
+	for (i = 0; i < target->queue_size; i++) {
 		struct srp_iu *iu = target->rx_ring[i];
 		ret = srp_post_recv(target, iu);
 		if (ret)
@@ -1933,7 +1975,7 @@ static int srp_reset_device(struct scsi_cmnd *scmnd)
 	if (target->tsk_mgmt_status)
 		return FAILED;
 
-	for (i = 0; i < SRP_CMD_SQ_SIZE; ++i) {
+	for (i = 0; i < target->req_ring_size; ++i) {
 		struct srp_request *req = &target->req_ring[i];
 		if (req->scmnd && req->scmnd->device == scmnd->device)
 			srp_finish_req(target, req, DID_RESET << 16);
@@ -2136,9 +2178,9 @@ static struct scsi_host_template srp_template = {
 	.eh_host_reset_handler		= srp_reset_host,
 	.skip_settle_delay		= true,
 	.sg_tablesize			= SRP_DEF_SG_TABLESIZE,
-	.can_queue			= SRP_CMD_SQ_SIZE,
+	.can_queue			= SRP_DEFAULT_CMD_SQ_SIZE,
 	.this_id			= -1,
-	.cmd_per_lun			= SRP_CMD_SQ_SIZE,
+	.cmd_per_lun			= SRP_DEFAULT_CMD_SQ_SIZE,
 	.use_clustering			= ENABLE_CLUSTERING,
 	.shost_attrs			= srp_host_attrs
 };
@@ -2245,6 +2287,7 @@ enum {
 	SRP_OPT_SG_TABLESIZE	= 1 << 11,
 	SRP_OPT_COMP_VECTOR	= 1 << 12,
 	SRP_OPT_TL_RETRY_COUNT	= 1 << 13,
+	SRP_OPT_QUEUE_SIZE	= 1 << 14,
 	SRP_OPT_ALL		= (SRP_OPT_ID_EXT	|
 				   SRP_OPT_IOC_GUID	|
 				   SRP_OPT_DGID		|
@@ -2267,6 +2310,7 @@ static const match_table_t srp_opt_tokens = {
 	{ SRP_OPT_SG_TABLESIZE,		"sg_tablesize=%u"	},
 	{ SRP_OPT_COMP_VECTOR,		"comp_vector=%u"	},
 	{ SRP_OPT_TL_RETRY_COUNT,	"tl_retry_count=%u"	},
+	{ SRP_OPT_QUEUE_SIZE,		"queue_size=%d"		},
 	{ SRP_OPT_ERR,			NULL 			}
 };
 
@@ -2361,13 +2405,25 @@ static int srp_parse_options(const char *buf, struct srp_target_port *target)
 			target->scsi_host->max_sectors = token;
 			break;
 
+		case SRP_OPT_QUEUE_SIZE:
+			if (match_int(args, &token) || token < 1) {
+				pr_warn("bad queue_size parameter '%s'\n", p);
+				goto out;
+			}
+			target->scsi_host->can_queue = token;
+			target->queue_size = token + SRP_RSP_SQ_SIZE +
+					     SRP_TSK_MGMT_SQ_SIZE;
+			if (!(opt_mask & SRP_OPT_MAX_CMD_PER_LUN))
+				target->scsi_host->cmd_per_lun = token;
+			break;
+
 		case SRP_OPT_MAX_CMD_PER_LUN:
-			if (match_int(args, &token)) {
+			if (match_int(args, &token) || token < 1) {
 				pr_warn("bad max cmd_per_lun parameter '%s'\n",
 					p);
 				goto out;
 			}
-			target->scsi_host->cmd_per_lun = min(token, SRP_CMD_SQ_SIZE);
+			target->scsi_host->cmd_per_lun = token;
 			break;
 
 		case SRP_OPT_IO_CLASS:
@@ -2455,6 +2511,12 @@ static int srp_parse_options(const char *buf, struct srp_target_port *target)
 				pr_warn("target creation request is missing parameter '%s'\n",
 					srp_opt_tokens[i].pattern);
 
+	if (target->scsi_host->cmd_per_lun > target->scsi_host->can_queue
+	    && (opt_mask & SRP_OPT_MAX_CMD_PER_LUN))
+		pr_warn("cmd_per_lun = %d > queue_size = %d\n",
+			target->scsi_host->cmd_per_lun,
+			target->scsi_host->can_queue);
+
 out:
 	kfree(options);
 	return ret;
@@ -2493,11 +2555,14 @@ static ssize_t srp_create_target(struct device *dev,
 	target->sg_tablesize	= indirect_sg_entries ? : cmd_sg_entries;
 	target->allow_ext_sg	= allow_ext_sg;
 	target->tl_retry_count	= 7;
+	target->queue_size	= SRP_DEFAULT_QUEUE_SIZE;
 
 	ret = srp_parse_options(buf, target);
 	if (ret)
 		goto err;
 
+	target->req_ring_size = target->queue_size - SRP_TSK_MGMT_SQ_SIZE;
+
 	if (!srp_conn_unique(target->srp_host, target)) {
 		shost_printk(KERN_INFO, target->scsi_host,
 			     PFX "Already connected to target port with id_ext=%016llx;ioc_guid=%016llx;initiator_ext=%016llx\n",
diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h
index 446b0452107b..575681063f38 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.h
+++ b/drivers/infiniband/ulp/srp/ib_srp.h
@@ -57,14 +57,11 @@ enum {
 	SRP_MAX_LUN		= 512,
 	SRP_DEF_SG_TABLESIZE	= 12,
 
-	SRP_RQ_SHIFT    	= 6,
-	SRP_RQ_SIZE		= 1 << SRP_RQ_SHIFT,
-
-	SRP_SQ_SIZE		= SRP_RQ_SIZE,
+	SRP_DEFAULT_QUEUE_SIZE	= 1 << 6,
 	SRP_RSP_SQ_SIZE		= 1,
-	SRP_REQ_SQ_SIZE		= SRP_SQ_SIZE - SRP_RSP_SQ_SIZE,
 	SRP_TSK_MGMT_SQ_SIZE	= 1,
-	SRP_CMD_SQ_SIZE		= SRP_REQ_SQ_SIZE - SRP_TSK_MGMT_SQ_SIZE,
+	SRP_DEFAULT_CMD_SQ_SIZE = SRP_DEFAULT_QUEUE_SIZE - SRP_RSP_SQ_SIZE -
+				  SRP_TSK_MGMT_SQ_SIZE,
 
 	SRP_TAG_NO_REQ		= ~0U,
 	SRP_TAG_TSK_MGMT	= 1U << 31,
@@ -156,6 +153,8 @@ struct srp_target_port {
 	char			target_name[32];
 	unsigned int		scsi_id;
 	unsigned int		sg_tablesize;
+	int			queue_size;
+	int			req_ring_size;
 	int			comp_vector;
 	int			tl_retry_count;
 
@@ -173,9 +172,9 @@ struct srp_target_port {
 
 	int			zero_req_lim;
 
-	struct srp_iu	       *tx_ring[SRP_SQ_SIZE];
-	struct srp_iu	       *rx_ring[SRP_RQ_SIZE];
-	struct srp_request	req_ring[SRP_CMD_SQ_SIZE];
+	struct srp_iu	       **tx_ring;
+	struct srp_iu	       **rx_ring;
+	struct srp_request	*req_ring;
 
 	struct work_struct	tl_err_work;
 	struct work_struct	remove_work;
-- 
cgit 


From 71444b97816ae08a1cc435f044f9f1f4cbd51e6a Mon Sep 17 00:00:00 2001
From: Jack Wang <jinpu.wang@profitbricks.com>
Date: Thu, 7 Nov 2013 11:37:37 +0100
Subject: IB/srp: Add change_queue_depth and change_queue_type support

Currently, it's not possible to change queue depth for a device behind
SRP host. Sometimes, we need to adjust queue_depth for performance
reason (eg storage busy, we need lower queue_depth to avoid running
into SCSI error handler), so this patch add support for SRP driver.

Signed-off-by: Jack Wang <jinpu.wang@profitbricks.com>
Tested-by: Bart Van Assche <bvanassche@acm.org>
Acked-by: David Dillow <dillowda@ornl.gov>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/ulp/srp/ib_srp.c | 54 +++++++++++++++++++++++++++++++++++++
 1 file changed, 54 insertions(+)

diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 6aa660d188a3..a8f8d0b8a777 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -46,6 +46,7 @@
 #include <scsi/scsi.h>
 #include <scsi/scsi_device.h>
 #include <scsi/scsi_dbg.h>
+#include <scsi/scsi_tcq.h>
 #include <scsi/srp.h>
 #include <scsi/scsi_transport_srp.h>
 
@@ -1882,6 +1883,57 @@ static int srp_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event)
 	return 0;
 }
 
+/**
+ * srp_change_queue_type - changing device queue tag type
+ * @sdev: scsi device struct
+ * @tag_type: requested tag type
+ *
+ * Returns queue tag type.
+ */
+static int
+srp_change_queue_type(struct scsi_device *sdev, int tag_type)
+{
+	if (sdev->tagged_supported) {
+		scsi_set_tag_type(sdev, tag_type);
+		if (tag_type)
+			scsi_activate_tcq(sdev, sdev->queue_depth);
+		else
+			scsi_deactivate_tcq(sdev, sdev->queue_depth);
+	} else
+		tag_type = 0;
+
+	return tag_type;
+}
+
+/**
+ * srp_change_queue_depth - setting device queue depth
+ * @sdev: scsi device struct
+ * @qdepth: requested queue depth
+ * @reason: SCSI_QDEPTH_DEFAULT/SCSI_QDEPTH_QFULL/SCSI_QDEPTH_RAMP_UP
+ * (see include/scsi/scsi_host.h for definition)
+ *
+ * Returns queue depth.
+ */
+static int
+srp_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
+{
+	struct Scsi_Host *shost = sdev->host;
+	int max_depth;
+	if (reason == SCSI_QDEPTH_DEFAULT || reason == SCSI_QDEPTH_RAMP_UP) {
+		max_depth = shost->can_queue;
+		if (!sdev->tagged_supported)
+			max_depth = 1;
+		if (qdepth > max_depth)
+			qdepth = max_depth;
+		scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
+	} else if (reason == SCSI_QDEPTH_QFULL)
+		scsi_track_queue_full(sdev, qdepth);
+	else
+		return -EOPNOTSUPP;
+
+	return sdev->queue_depth;
+}
+
 static int srp_send_tsk_mgmt(struct srp_target_port *target,
 			     u64 req_tag, unsigned int lun, u8 func)
 {
@@ -2173,6 +2225,8 @@ static struct scsi_host_template srp_template = {
 	.slave_configure		= srp_slave_configure,
 	.info				= srp_target_info,
 	.queuecommand			= srp_queuecommand,
+	.change_queue_depth             = srp_change_queue_depth,
+	.change_queue_type              = srp_change_queue_type,
 	.eh_abort_handler		= srp_abort,
 	.eh_device_reset_handler	= srp_reset_device,
 	.eh_host_reset_handler		= srp_reset_host,
-- 
cgit 


From 65d7dd2f3479ef5aec1d9ddd1481cb7851c11af6 Mon Sep 17 00:00:00 2001
From: Vu Pham <vuhuong@mellanox.com>
Date: Thu, 10 Oct 2013 13:50:29 +0200
Subject: IB/srp: Remove target from list before freeing Scsi_Host structure

Remove an SRP target from the SRP target list before invoking the last
scsi_host_put() call.  This change is necessary because that last put
frees the memory that holds the srp_target_port structure.

This patch prevents the following kernel oops:

    RIP: 0010:[<ffffffff810b00d0>] __lock_acquire+0x500/0x1570
    Call Trace:
     [<ffffffff810b11e4>] lock_acquire+0xa4/0x120
     [<ffffffff81531206>] _spin_lock+0x36/0x70
     [<ffffffffa01b6d8f>] srp_remove_work+0xef/0x180 [ib_srp]
     [<ffffffff8109125c>] worker_thread+0x21c/0x3d0
     [<ffffffff81096e86>] kthread+0x96/0xa0
     [<ffffffff8100c20a>] child_rip+0xa/0x20

Signed-off-by: Vu Pham <vuhuong@mellanox.com>

[ bvanassche - Modified path description and CC'ed stable. ]

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/ulp/srp/ib_srp.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index a8f8d0b8a777..a8c06c4451c0 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -666,6 +666,11 @@ static void srp_remove_target(struct srp_target_port *target)
 	cancel_work_sync(&target->tl_err_work);
 	srp_rport_put(target->rport);
 	srp_free_req_data(target);
+
+	spin_lock(&target->srp_host->target_lock);
+	list_del(&target->list);
+	spin_unlock(&target->srp_host->target_lock);
+
 	scsi_host_put(target->scsi_host);
 }
 
@@ -677,10 +682,6 @@ static void srp_remove_work(struct work_struct *work)
 	WARN_ON_ONCE(target->state != SRP_TARGET_REMOVED);
 
 	srp_remove_target(target);
-
-	spin_lock(&target->srp_host->target_lock);
-	list_del(&target->list);
-	spin_unlock(&target->srp_host->target_lock);
 }
 
 static void srp_rport_delete(struct srp_rport *rport)
-- 
cgit 


From 99b6697a50c2acbe3ca2772d359fc9a28835dc84 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Thu, 10 Oct 2013 13:52:33 +0200
Subject: IB/srp: Avoid offlining operational SCSI devices

If SCSI commands are submitted with a SCSI request timeout that is
lower than the the IB RC timeout, it can happen that the SCSI error
handler has already started device recovery before transport layer
error handling starts.  So it can happen that the SCSI error handler
tries to abort a SCSI command after it has been reset by
srp_rport_reconnect().

Tell the SCSI error handler that such commands have finished and that
it is not necessary to continue its recovery strategy for commands
that have been reset by srp_rport_reconnect().

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/ulp/srp/ib_srp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index a8c06c4451c0..4bf2f9feb59a 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -2000,7 +2000,7 @@ static int srp_abort(struct scsi_cmnd *scmnd)
 	shost_printk(KERN_ERR, target->scsi_host, "SRP abort called\n");
 
 	if (!req || !srp_claim_req(target, req, scmnd))
-		return FAILED;
+		return SUCCESS;
 	if (srp_send_tsk_mgmt(target, req->index, scmnd->device->lun,
 			      SRP_TSK_ABORT_TASK) == 0)
 		ret = SUCCESS;
-- 
cgit 


From cd4e38542a5c2cab94e5410fb17c1cc004a60792 Mon Sep 17 00:00:00 2001
From: Bart Van Assche <bvanassche@acm.org>
Date: Thu, 10 Oct 2013 13:53:25 +0200
Subject: IB/srp: Report receive errors correctly

The IB spec does not guarantee that the opcode is available in error
completions.  Hence do not rely on it.  See also commit 948d1e889e5b
("IB/srp: Introduce srp_handle_qp_err()").

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Cc: <stable@vger.kernel.org> # v3.8
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/ulp/srp/ib_srp.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/infiniband/ulp/srp/ib_srp.c b/drivers/infiniband/ulp/srp/ib_srp.c
index 4bf2f9feb59a..a88631918e85 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.c
+++ b/drivers/infiniband/ulp/srp/ib_srp.c
@@ -1449,14 +1449,13 @@ static void srp_tl_err_work(struct work_struct *work)
 		srp_start_tl_fail_timers(target->rport);
 }
 
-static void srp_handle_qp_err(enum ib_wc_status wc_status,
-			      enum ib_wc_opcode wc_opcode,
+static void srp_handle_qp_err(enum ib_wc_status wc_status, bool send_err,
 			      struct srp_target_port *target)
 {
 	if (target->connected && !target->qp_in_error) {
 		shost_printk(KERN_ERR, target->scsi_host,
 			     PFX "failed %s status %d\n",
-			     wc_opcode & IB_WC_RECV ? "receive" : "send",
+			     send_err ? "send" : "receive",
 			     wc_status);
 		queue_work(system_long_wq, &target->tl_err_work);
 	}
@@ -1473,7 +1472,7 @@ static void srp_recv_completion(struct ib_cq *cq, void *target_ptr)
 		if (likely(wc.status == IB_WC_SUCCESS)) {
 			srp_handle_recv(target, &wc);
 		} else {
-			srp_handle_qp_err(wc.status, wc.opcode, target);
+			srp_handle_qp_err(wc.status, false, target);
 		}
 	}
 }
@@ -1489,7 +1488,7 @@ static void srp_send_completion(struct ib_cq *cq, void *target_ptr)
 			iu = (struct srp_iu *) (uintptr_t) wc.wr_id;
 			list_add(&iu->list, &target->free_tx);
 		} else {
-			srp_handle_qp_err(wc.status, wc.opcode, target);
+			srp_handle_qp_err(wc.status, true, target);
 		}
 	}
 }
-- 
cgit 


From c682e51dbc9837f4aa61180775e9ca4f2a463adf Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Sat, 9 Nov 2013 00:38:24 +0100
Subject: ARM: 7887/1: Don't smp_cross_call() on UP devices in
 arch_irq_work_raise()

If we're running a kernel compiled with SMP_ON_UP=y and the
hardware only supports UP operation there isn't any
smp_cross_call function assigned. Unfortunately, we call
smp_cross_call() unconditionally in arch_irq_work_raise() and
crash the kernel on UP devices. Check to make sure we're running
on an SMP device before calling smp_cross_call() here.

Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c0004000
[00000000] *pgd=00000000
Internal error: Oops: 80000005 [#1] SMP ARM
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.12.0-rc6-00018-g8d45144-dirty #16
task: de05b440 ti: de05c000 task.ti: de05c000
PC is at 0x0
LR is at arch_irq_work_raise+0x3c/0x48
pc : [<00000000>]    lr : [<c0019590>]    psr: 60000193
sp : de05dd60  ip : 00000001  fp : 00000000
r10: c085e2f0  r9 : de05c000  r8 : c07be0a4
r7 : de05c000  r6 : de05c000  r5 : c07c5778  r4 : c0824554
r3 : 00000000  r2 : 00000000  r1 : 00000006  r0 : c0529a58
Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM Segment kernel
Control: 10c5387d  Table: 80004019  DAC: 00000017
Process swapper/0 (pid: 1, stack limit = 0xde05c248)
Stack: (0xde05dd60 to 0xde05e000)
dd60: c07b9dbc c00cb2dc 00000001 c08242c0 c08242c0 60000113 c07be0a8 c00b0590
dd80: de05c000 c085e2f0 c08242c0 c08242c0 c1414c28 c00b07cc de05b440 c1414c28
dda0: c08242c0 c00b0af8 c0862bb0 c0862db0 c1414cd8 de05c028 c0824840 de05ddb8
ddc0: 00000000 00000009 00000001 00000024 c07be0a8 c07be0a4 de05c000 c085e2f0
dde0: 00000000 c004a4b0 00000010 de00d2dc 00000054 00000100 00000024 00000000
de00: de05c028 0000000a ffff8ae7 00200040 00000016 de05c000 60000193 de05c000
de20: 00000054 00000000 00000000 00000000 00000000 c004a704 00000000 de05c008
de40: c07ba254 c004aa1c c07c5778 c0014b70 fa200000 00000054 de05de80 c0861244
de60: 00000000 c0008634 de05b440 c051c778 20000113 ffffffff de05deb4 c051d0a4
de80: 00000001 00000001 00000000 de05b440 c082afac de057ac0 de057ac0 de0443c0
dea0: 00000000 00000000 00000000 00000000 c082afbc de05dec8 c009f2a0 c051c778
dec0: 20000113 ffffffff 00000000 c016edb0 00000000 000002b0 de057ac0 de057ac0
dee0: 00000000 c016ee40 c0875e50 de05df2e de057ac0 00000000 00000013 00000000
df00: 00000000 c016f054 de043600 de0443c0 c008eb38 de004ec0 c0875e50 c008eb44
df20: 00000012 00000000 00000000 3931f0f8 00000000 00000000 00000014 c0822e84
df40: 00000000 c008ed2c 00000000 00000000 00000000 c07b7490 c07b7490 c075ab3c
df60: 00000000 c00701ac 00000002 00000000 c0070160 dffadb73 7bf8edb4 00000000
df80: c051092c 00000000 00000000 00000000 00000000 00000000 00000000 c0510934
dfa0: de05aa40 00000000 c051092c c0013ce8 00000000 00000000 00000000 00000000
dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 07efffe5 4dfac6f5
[<c0019590>] (arch_irq_work_raise+0x3c/0x48) from [<c00cb2dc>] (irq_work_queue+0xe4/0xf8)
[<c00cb2dc>] (irq_work_queue+0xe4/0xf8) from [<c00b0590>] (rcu_accelerate_cbs+0x1d4/0x1d8)
[<c00b0590>] (rcu_accelerate_cbs+0x1d4/0x1d8) from [<c00b07cc>] (rcu_start_gp+0x34/0x48)
[<c00b07cc>] (rcu_start_gp+0x34/0x48) from [<c00b0af8>] (rcu_process_callbacks+0x318/0x608)
[<c00b0af8>] (rcu_process_callbacks+0x318/0x608) from [<c004a4b0>] (__do_softirq+0x114/0x2a0)
[<c004a4b0>] (__do_softirq+0x114/0x2a0) from [<c004a704>] (do_softirq+0x6c/0x74)
[<c004a704>] (do_softirq+0x6c/0x74) from [<c004aa1c>] (irq_exit+0xac/0x100)
[<c004aa1c>] (irq_exit+0xac/0x100) from [<c0014b70>] (handle_IRQ+0x54/0xb4)
[<c0014b70>] (handle_IRQ+0x54/0xb4) from [<c0008634>] (omap3_intc_handle_irq+0x60/0x74)
[<c0008634>] (omap3_intc_handle_irq+0x60/0x74) from [<c051d0a4>] (__irq_svc+0x44/0x5c)
Exception stack(0xde05de80 to 0xde05dec8)
de80: 00000001 00000001 00000000 de05b440 c082afac de057ac0 de057ac0 de0443c0
dea0: 00000000 00000000 00000000 00000000 c082afbc de05dec8 c009f2a0 c051c778
dec0: 20000113 ffffffff
[<c051d0a4>] (__irq_svc+0x44/0x5c) from [<c051c778>] (_raw_spin_unlock_irq+0x28/0x2c)
[<c051c778>] (_raw_spin_unlock_irq+0x28/0x2c) from [<c016edb0>] (proc_alloc_inum+0x30/0xa8)
[<c016edb0>] (proc_alloc_inum+0x30/0xa8) from [<c016ee40>] (proc_register+0x18/0x130)
[<c016ee40>] (proc_register+0x18/0x130) from [<c016f054>] (proc_mkdir_data+0x44/0x6c)
[<c016f054>] (proc_mkdir_data+0x44/0x6c) from [<c008eb44>] (register_irq_proc+0x6c/0x128)
[<c008eb44>] (register_irq_proc+0x6c/0x128) from [<c008ed2c>] (init_irq_proc+0x74/0xb0)
[<c008ed2c>] (init_irq_proc+0x74/0xb0) from [<c075ab3c>] (kernel_init_freeable+0x84/0x1c8)
[<c075ab3c>] (kernel_init_freeable+0x84/0x1c8) from [<c0510934>] (kernel_init+0x8/0x150)
[<c0510934>] (kernel_init+0x8/0x150) from [<c0013ce8>] (ret_from_fork+0x14/0x2c)
Code: bad PC value

Fixes: bf18525fd79 "ARM: 7872/1: Support arch_irq_work_raise() via self IPIs"

Reported-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Tested-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/smp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/kernel/smp.c b/arch/arm/kernel/smp.c
index bf9a0d6d91dc..e115cbb0d25a 100644
--- a/arch/arm/kernel/smp.c
+++ b/arch/arm/kernel/smp.c
@@ -453,7 +453,8 @@ void arch_send_call_function_single_ipi(int cpu)
 #ifdef CONFIG_IRQ_WORK
 void arch_irq_work_raise(void)
 {
-	smp_cross_call(cpumask_of(smp_processor_id()), IPI_IRQ_WORK);
+	if (is_smp())
+		smp_cross_call(cpumask_of(smp_processor_id()), IPI_IRQ_WORK);
 }
 #endif
 
-- 
cgit 


From 4d8981f6b784ae445a28de909d77e27836c3ed44 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Tue, 29 Oct 2013 16:02:00 +0100
Subject: ARM: 7871/1: amba: Extend number of IRQS

Xilinx Zynq pl330 dma driver has 9 irqs which all have to
be used by the driver to get it work properly.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 include/linux/amba/bus.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h
index 43ec7e247a80..b327a1b1b7e8 100644
--- a/include/linux/amba/bus.h
+++ b/include/linux/amba/bus.h
@@ -21,7 +21,7 @@
 #include <linux/resource.h>
 #include <linux/regulator/consumer.h>
 
-#define AMBA_NR_IRQS	2
+#define AMBA_NR_IRQS	9
 #define AMBA_CID	0xb105f00d
 
 struct clk;
-- 
cgit 


From 237f12337cfa2175474e4dd015bc07a25eb9080d Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Sat, 26 Oct 2013 15:07:04 +0100
Subject: ARM: 7866/1: include: asm: use 'long long' instead of 'u64' within
 atomic.h

atomic* value is signed value, and atomic* functions need also process
signed value (parameter value, and return value), so 32-bit arm need
use 'long long' instead of 'u64'.

After replacement, it will also fix a bug for atomic64_add_negative():
"u64 is never less than 0".

The modifications are:

  in vim, use "1,% s/\<u64\>/long long/g" command.
  remove '__aligned(8)' which is useless for 64-bit.
  be sure of 80 column limitation after replacement.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/include/asm/atomic.h | 49 ++++++++++++++++++++++---------------------
 1 file changed, 25 insertions(+), 24 deletions(-)

diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
index da1c77d39327..a715ac049e4c 100644
--- a/arch/arm/include/asm/atomic.h
+++ b/arch/arm/include/asm/atomic.h
@@ -238,15 +238,15 @@ static inline int __atomic_add_unless(atomic_t *v, int a, int u)
 
 #ifndef CONFIG_GENERIC_ATOMIC64
 typedef struct {
-	u64 __aligned(8) counter;
+	long long counter;
 } atomic64_t;
 
 #define ATOMIC64_INIT(i) { (i) }
 
 #ifdef CONFIG_ARM_LPAE
-static inline u64 atomic64_read(const atomic64_t *v)
+static inline long long atomic64_read(const atomic64_t *v)
 {
-	u64 result;
+	long long result;
 
 	__asm__ __volatile__("@ atomic64_read\n"
 "	ldrd	%0, %H0, [%1]"
@@ -257,7 +257,7 @@ static inline u64 atomic64_read(const atomic64_t *v)
 	return result;
 }
 
-static inline void atomic64_set(atomic64_t *v, u64 i)
+static inline void atomic64_set(atomic64_t *v, long long i)
 {
 	__asm__ __volatile__("@ atomic64_set\n"
 "	strd	%2, %H2, [%1]"
@@ -266,9 +266,9 @@ static inline void atomic64_set(atomic64_t *v, u64 i)
 	);
 }
 #else
-static inline u64 atomic64_read(const atomic64_t *v)
+static inline long long atomic64_read(const atomic64_t *v)
 {
-	u64 result;
+	long long result;
 
 	__asm__ __volatile__("@ atomic64_read\n"
 "	ldrexd	%0, %H0, [%1]"
@@ -279,9 +279,9 @@ static inline u64 atomic64_read(const atomic64_t *v)
 	return result;
 }
 
-static inline void atomic64_set(atomic64_t *v, u64 i)
+static inline void atomic64_set(atomic64_t *v, long long i)
 {
-	u64 tmp;
+	long long tmp;
 
 	__asm__ __volatile__("@ atomic64_set\n"
 "1:	ldrexd	%0, %H0, [%2]\n"
@@ -294,9 +294,9 @@ static inline void atomic64_set(atomic64_t *v, u64 i)
 }
 #endif
 
-static inline void atomic64_add(u64 i, atomic64_t *v)
+static inline void atomic64_add(long long i, atomic64_t *v)
 {
-	u64 result;
+	long long result;
 	unsigned long tmp;
 
 	__asm__ __volatile__("@ atomic64_add\n"
@@ -311,9 +311,9 @@ static inline void atomic64_add(u64 i, atomic64_t *v)
 	: "cc");
 }
 
-static inline u64 atomic64_add_return(u64 i, atomic64_t *v)
+static inline long long atomic64_add_return(long long i, atomic64_t *v)
 {
-	u64 result;
+	long long result;
 	unsigned long tmp;
 
 	smp_mb();
@@ -334,9 +334,9 @@ static inline u64 atomic64_add_return(u64 i, atomic64_t *v)
 	return result;
 }
 
-static inline void atomic64_sub(u64 i, atomic64_t *v)
+static inline void atomic64_sub(long long i, atomic64_t *v)
 {
-	u64 result;
+	long long result;
 	unsigned long tmp;
 
 	__asm__ __volatile__("@ atomic64_sub\n"
@@ -351,9 +351,9 @@ static inline void atomic64_sub(u64 i, atomic64_t *v)
 	: "cc");
 }
 
-static inline u64 atomic64_sub_return(u64 i, atomic64_t *v)
+static inline long long atomic64_sub_return(long long i, atomic64_t *v)
 {
-	u64 result;
+	long long result;
 	unsigned long tmp;
 
 	smp_mb();
@@ -374,9 +374,10 @@ static inline u64 atomic64_sub_return(u64 i, atomic64_t *v)
 	return result;
 }
 
-static inline u64 atomic64_cmpxchg(atomic64_t *ptr, u64 old, u64 new)
+static inline long long atomic64_cmpxchg(atomic64_t *ptr, long long old,
+					long long new)
 {
-	u64 oldval;
+	long long oldval;
 	unsigned long res;
 
 	smp_mb();
@@ -398,9 +399,9 @@ static inline u64 atomic64_cmpxchg(atomic64_t *ptr, u64 old, u64 new)
 	return oldval;
 }
 
-static inline u64 atomic64_xchg(atomic64_t *ptr, u64 new)
+static inline long long atomic64_xchg(atomic64_t *ptr, long long new)
 {
-	u64 result;
+	long long result;
 	unsigned long tmp;
 
 	smp_mb();
@@ -419,9 +420,9 @@ static inline u64 atomic64_xchg(atomic64_t *ptr, u64 new)
 	return result;
 }
 
-static inline u64 atomic64_dec_if_positive(atomic64_t *v)
+static inline long long atomic64_dec_if_positive(atomic64_t *v)
 {
-	u64 result;
+	long long result;
 	unsigned long tmp;
 
 	smp_mb();
@@ -445,9 +446,9 @@ static inline u64 atomic64_dec_if_positive(atomic64_t *v)
 	return result;
 }
 
-static inline int atomic64_add_unless(atomic64_t *v, u64 a, u64 u)
+static inline int atomic64_add_unless(atomic64_t *v, long long a, long long u)
 {
-	u64 val;
+	long long val;
 	unsigned long tmp;
 	int ret = 1;
 
-- 
cgit 


From 4dcc1cf7316a26e112f5c9fcca531ff98ef44700 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Sat, 26 Oct 2013 15:07:25 +0100
Subject: ARM: 7867/1: include: asm: use 'int' instead of 'unsigned long' for
 'oldval' in atomic_cmpxchg().

For atomic_cmpxchg(), the type of 'oldval' need be 'int' to match the
type of "*ptr" (used by 'ldrex' instruction) and 'old' (used by 'teq'
instruction).

Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/include/asm/atomic.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
index a715ac049e4c..9ee7e01066f9 100644
--- a/arch/arm/include/asm/atomic.h
+++ b/arch/arm/include/asm/atomic.h
@@ -114,7 +114,8 @@ static inline int atomic_sub_return(int i, atomic_t *v)
 
 static inline int atomic_cmpxchg(atomic_t *ptr, int old, int new)
 {
-	unsigned long oldval, res;
+	int oldval;
+	unsigned long res;
 
 	smp_mb();
 
-- 
cgit 


From aed3a4ed7222ae37860ae33cbad3ea7a6b2eaf8e Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Sat, 26 Oct 2013 15:07:41 +0100
Subject: ARM: 7868/1: arm/arm64: remove atomic_clear_mask() in
 "include/asm/atomic.h"

In current kernel wide source code, except other architectures, only
s390 scsi drivers use atomic_clear_mask(), and arm/arm64 need not
support s390 drivers.

So remove atomic_clear_mask() from "arm[64]/include/asm/atomic.h".

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/include/asm/atomic.h   | 24 ------------------------
 arch/arm64/include/asm/atomic.h | 14 --------------
 2 files changed, 38 deletions(-)

diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h
index 9ee7e01066f9..f8a4336ed8fc 100644
--- a/arch/arm/include/asm/atomic.h
+++ b/arch/arm/include/asm/atomic.h
@@ -135,21 +135,6 @@ static inline int atomic_cmpxchg(atomic_t *ptr, int old, int new)
 	return oldval;
 }
 
-static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
-{
-	unsigned long tmp, tmp2;
-
-	__asm__ __volatile__("@ atomic_clear_mask\n"
-"1:	ldrex	%0, [%3]\n"
-"	bic	%0, %0, %4\n"
-"	strex	%1, %0, [%3]\n"
-"	teq	%1, #0\n"
-"	bne	1b"
-	: "=&r" (tmp), "=&r" (tmp2), "+Qo" (*addr)
-	: "r" (addr), "Ir" (mask)
-	: "cc");
-}
-
 #else /* ARM_ARCH_6 */
 
 #ifdef CONFIG_SMP
@@ -198,15 +183,6 @@ static inline int atomic_cmpxchg(atomic_t *v, int old, int new)
 	return ret;
 }
 
-static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
-{
-	unsigned long flags;
-
-	raw_local_irq_save(flags);
-	*addr &= ~mask;
-	raw_local_irq_restore(flags);
-}
-
 #endif /* __LINUX_ARM_ARCH__ */
 
 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
diff --git a/arch/arm64/include/asm/atomic.h b/arch/arm64/include/asm/atomic.h
index 836364468571..01de5aaa3edc 100644
--- a/arch/arm64/include/asm/atomic.h
+++ b/arch/arm64/include/asm/atomic.h
@@ -126,20 +126,6 @@ static inline int atomic_cmpxchg(atomic_t *ptr, int old, int new)
 	return oldval;
 }
 
-static inline void atomic_clear_mask(unsigned long mask, unsigned long *addr)
-{
-	unsigned long tmp, tmp2;
-
-	asm volatile("// atomic_clear_mask\n"
-"1:	ldxr	%0, %2\n"
-"	bic	%0, %0, %3\n"
-"	stxr	%w1, %0, %2\n"
-"	cbnz	%w1, 1b"
-	: "=&r" (tmp), "=&r" (tmp2), "+Q" (*addr)
-	: "Ir" (mask)
-	: "cc");
-}
-
 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
 
 static inline int __atomic_add_unless(atomic_t *v, int a, int u)
-- 
cgit 


From d17ab4592760973d95961bb29f26969246e9dabc Mon Sep 17 00:00:00 2001
From: Grygorii Strashko <grygorii.strashko@ti.com>
Date: Fri, 8 Nov 2013 19:43:48 -0700
Subject: block: cleanup removing dependency on bootmem headers

Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-ioc.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/block/blk-ioc.c b/block/blk-ioc.c
index 46cd7bd18b34..242df01413f6 100644
--- a/block/blk-ioc.c
+++ b/block/blk-ioc.c
@@ -6,7 +6,6 @@
 #include <linux/init.h>
 #include <linux/bio.h>
 #include <linux/blkdev.h>
-#include <linux/bootmem.h>	/* for max_pfn/max_low_pfn */
 #include <linux/slab.h>
 
 #include "blk.h"
-- 
cgit 


From 42c326082d8a2c91506f951ace638deae1faf083 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 8 Nov 2013 12:31:16 -0500
Subject: switch shrink_dcache_for_umount() to use of d_walk()

we have too many iterators in fs/dcache.c...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/dcache.c | 195 ++++++++++++++++++++++++++----------------------------------
 1 file changed, 85 insertions(+), 110 deletions(-)

diff --git a/fs/dcache.c b/fs/dcache.c
index c8e83d0d61ac..eb0978da1bd4 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1074,116 +1074,6 @@ void shrink_dcache_sb(struct super_block *sb)
 }
 EXPORT_SYMBOL(shrink_dcache_sb);
 
-/*
- * destroy a single subtree of dentries for unmount
- * - see the comments on shrink_dcache_for_umount() for a description of the
- *   locking
- */
-static void shrink_dcache_for_umount_subtree(struct dentry *dentry)
-{
-	struct dentry *parent;
-
-	BUG_ON(!IS_ROOT(dentry));
-
-	for (;;) {
-		/* descend to the first leaf in the current subtree */
-		while (!list_empty(&dentry->d_subdirs))
-			dentry = list_entry(dentry->d_subdirs.next,
-					    struct dentry, d_u.d_child);
-
-		/* consume the dentries from this leaf up through its parents
-		 * until we find one with children or run out altogether */
-		do {
-			struct inode *inode;
-
-			/*
-			 * inform the fs that this dentry is about to be
-			 * unhashed and destroyed.
-			 */
-			if ((dentry->d_flags & DCACHE_OP_PRUNE) &&
-			    !d_unhashed(dentry))
-				dentry->d_op->d_prune(dentry);
-
-			dentry_lru_del(dentry);
-			__d_shrink(dentry);
-
-			if (dentry->d_lockref.count != 0) {
-				printk(KERN_ERR
-				       "BUG: Dentry %p{i=%lx,n=%s}"
-				       " still in use (%d)"
-				       " [unmount of %s %s]\n",
-				       dentry,
-				       dentry->d_inode ?
-				       dentry->d_inode->i_ino : 0UL,
-				       dentry->d_name.name,
-				       dentry->d_lockref.count,
-				       dentry->d_sb->s_type->name,
-				       dentry->d_sb->s_id);
-				BUG();
-			}
-
-			if (IS_ROOT(dentry)) {
-				parent = NULL;
-				list_del(&dentry->d_u.d_child);
-			} else {
-				parent = dentry->d_parent;
-				parent->d_lockref.count--;
-				list_del(&dentry->d_u.d_child);
-			}
-
-			inode = dentry->d_inode;
-			if (inode) {
-				dentry->d_inode = NULL;
-				hlist_del_init(&dentry->d_alias);
-				if (dentry->d_op && dentry->d_op->d_iput)
-					dentry->d_op->d_iput(dentry, inode);
-				else
-					iput(inode);
-			}
-
-			d_free(dentry);
-
-			/* finished when we fall off the top of the tree,
-			 * otherwise we ascend to the parent and move to the
-			 * next sibling if there is one */
-			if (!parent)
-				return;
-			dentry = parent;
-		} while (list_empty(&dentry->d_subdirs));
-
-		dentry = list_entry(dentry->d_subdirs.next,
-				    struct dentry, d_u.d_child);
-	}
-}
-
-/*
- * destroy the dentries attached to a superblock on unmounting
- * - we don't need to use dentry->d_lock because:
- *   - the superblock is detached from all mountings and open files, so the
- *     dentry trees will not be rearranged by the VFS
- *   - s_umount is write-locked, so the memory pressure shrinker will ignore
- *     any dentries belonging to this superblock that it comes across
- *   - the filesystem itself is no longer permitted to rearrange the dentries
- *     in this superblock
- */
-void shrink_dcache_for_umount(struct super_block *sb)
-{
-	struct dentry *dentry;
-
-	if (down_read_trylock(&sb->s_umount))
-		BUG();
-
-	dentry = sb->s_root;
-	sb->s_root = NULL;
-	dentry->d_lockref.count--;
-	shrink_dcache_for_umount_subtree(dentry);
-
-	while (!hlist_bl_empty(&sb->s_anon)) {
-		dentry = hlist_bl_entry(hlist_bl_first(&sb->s_anon), struct dentry, d_hash);
-		shrink_dcache_for_umount_subtree(dentry);
-	}
-}
-
 /*
  * This tries to ascend one level of parenthood, but
  * we can race with renaming, so we need to re-check
@@ -1478,6 +1368,91 @@ void shrink_dcache_parent(struct dentry *parent)
 }
 EXPORT_SYMBOL(shrink_dcache_parent);
 
+static enum d_walk_ret umount_collect(void *_data, struct dentry *dentry)
+{
+	struct select_data *data = _data;
+	enum d_walk_ret ret = D_WALK_CONTINUE;
+
+	if (dentry->d_lockref.count) {
+		dentry_lru_del(dentry);
+		if (likely(!list_empty(&dentry->d_subdirs)))
+			goto out;
+		if (dentry == data->start && dentry->d_lockref.count == 1)
+			goto out;
+		printk(KERN_ERR
+		       "BUG: Dentry %p{i=%lx,n=%s}"
+		       " still in use (%d)"
+		       " [unmount of %s %s]\n",
+		       dentry,
+		       dentry->d_inode ?
+		       dentry->d_inode->i_ino : 0UL,
+		       dentry->d_name.name,
+		       dentry->d_lockref.count,
+		       dentry->d_sb->s_type->name,
+		       dentry->d_sb->s_id);
+		BUG();
+	} else if (!(dentry->d_flags & DCACHE_SHRINK_LIST)) {
+		/*
+		 * We can't use d_lru_shrink_move() because we
+		 * need to get the global LRU lock and do the
+		 * LRU accounting.
+		 */
+		if (dentry->d_flags & DCACHE_LRU_LIST)
+			d_lru_del(dentry);
+		d_shrink_add(dentry, &data->dispose);
+		data->found++;
+		ret = D_WALK_NORETRY;
+	}
+out:
+	if (data->found && need_resched())
+		ret = D_WALK_QUIT;
+	return ret;
+}
+
+/*
+ * destroy the dentries attached to a superblock on unmounting
+ */
+void shrink_dcache_for_umount(struct super_block *sb)
+{
+	struct dentry *dentry;
+
+	if (down_read_trylock(&sb->s_umount))
+		BUG();
+
+	dentry = sb->s_root;
+	sb->s_root = NULL;
+	for (;;) {
+		struct select_data data;
+
+		INIT_LIST_HEAD(&data.dispose);
+		data.start = dentry;
+		data.found = 0;
+
+		d_walk(dentry, &data, umount_collect, NULL);
+		if (!data.found)
+			break;
+
+		shrink_dentry_list(&data.dispose);
+		cond_resched();
+	}
+	d_drop(dentry);
+	dput(dentry);
+
+	while (!hlist_bl_empty(&sb->s_anon)) {
+		struct select_data data;
+		dentry = hlist_bl_entry(hlist_bl_first(&sb->s_anon), struct dentry, d_hash);
+
+		INIT_LIST_HEAD(&data.dispose);
+		data.start = NULL;
+		data.found = 0;
+
+		d_walk(dentry, &data, umount_collect, NULL);
+		if (data.found)
+			shrink_dentry_list(&data.dispose);
+		cond_resched();
+	}
+}
+
 static enum d_walk_ret check_and_collect(void *_data, struct dentry *dentry)
 {
 	struct select_data *data = _data;
-- 
cgit 


From 48a066e72d970a3e225a9c18690d570c736fc455 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 29 Sep 2013 22:06:07 -0400
Subject: RCU'd vfsmounts

* RCU-delayed freeing of vfsmounts
* vfsmount_lock replaced with a seqlock (mount_lock)
* sequence number from mount_lock is stored in nameidata->m_seq and
used when we exit RCU mode
* new vfsmount flag - MNT_SYNC_UMOUNT.  Set by umount_tree() when its
caller knows that vfsmount will have no surviving references.
* synchronize_rcu() done between unlocking namespace_sem in namespace_unlock()
and doing pending mntput().
* new helper: legitimize_mnt(mnt, seq).  Checks the mount_lock sequence
number against seq, then grabs reference to mnt.  Then it rechecks mount_lock
again to close the race and either returns success or drops the reference it
has acquired.  The subtle point is that in case of MNT_SYNC_UMOUNT we can
simply decrement the refcount and sod off - aforementioned synchronize_rcu()
makes sure that final mntput() won't come until we leave RCU mode.  We need
that, since we don't want to end up with some lazy pathwalk racing with
umount() and stealing the final mntput() from it - caller of umount() may
expect it to return only once the fs is shut down and we don't want to break
that.  In other cases (i.e. with MNT_SYNC_UMOUNT absent) we have to do
full-blown mntput() in case of mount_lock sequence number mismatch happening
just as we'd grabbed the reference, but in those cases we won't be stealing
the final mntput() from anything that would care.
* mntput_no_expire() doesn't lock anything on the fast path now.  Incidentally,
SMP and UP cases are handled the same way - no ifdefs there.
* normal pathname resolution does *not* do any writes to mount_lock.  It does,
of course, bump the refcounts of vfsmount and dentry in the very end, but that's
it.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/dcache.c           |  20 +++++---
 fs/mount.h            |  10 ++--
 fs/namei.c            |  50 ++++++++++---------
 fs/namespace.c        | 135 ++++++++++++++++++++++++++++++++------------------
 include/linux/mount.h |   2 +
 include/linux/namei.h |   2 +-
 6 files changed, 136 insertions(+), 83 deletions(-)

diff --git a/fs/dcache.c b/fs/dcache.c
index eb0978da1bd4..aafa2a146434 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -2887,24 +2887,28 @@ static int prepend_path(const struct path *path,
 	struct vfsmount *vfsmnt = path->mnt;
 	struct mount *mnt = real_mount(vfsmnt);
 	int error = 0;
-	unsigned seq = 0;
+	unsigned seq, m_seq = 0;
 	char *bptr;
 	int blen;
 
-	br_read_lock(&vfsmount_lock);
 	rcu_read_lock();
+restart_mnt:
+	read_seqbegin_or_lock(&mount_lock, &m_seq);
+	seq = 0;
 restart:
 	bptr = *buffer;
 	blen = *buflen;
+	error = 0;
 	read_seqbegin_or_lock(&rename_lock, &seq);
 	while (dentry != root->dentry || vfsmnt != root->mnt) {
 		struct dentry * parent;
 
 		if (dentry == vfsmnt->mnt_root || IS_ROOT(dentry)) {
+			struct mount *parent = ACCESS_ONCE(mnt->mnt_parent);
 			/* Global root? */
-			if (mnt_has_parent(mnt)) {
-				dentry = mnt->mnt_mountpoint;
-				mnt = mnt->mnt_parent;
+			if (mnt != parent) {
+				dentry = ACCESS_ONCE(mnt->mnt_mountpoint);
+				mnt = parent;
 				vfsmnt = &mnt->mnt;
 				continue;
 			}
@@ -2938,7 +2942,11 @@ restart:
 		goto restart;
 	}
 	done_seqretry(&rename_lock, seq);
-	br_read_unlock(&vfsmount_lock);
+	if (need_seqretry(&mount_lock, m_seq)) {
+		m_seq = 1;
+		goto restart_mnt;
+	}
+	done_seqretry(&mount_lock, m_seq);
 
 	if (error >= 0 && bptr == *buffer) {
 		if (--blen < 0)
diff --git a/fs/mount.h b/fs/mount.h
index f0866076de6e..d64c594be6c4 100644
--- a/fs/mount.h
+++ b/fs/mount.h
@@ -1,7 +1,6 @@
 #include <linux/mount.h>
 #include <linux/seq_file.h>
 #include <linux/poll.h>
-#include <linux/lglock.h>
 
 struct mnt_namespace {
 	atomic_t		count;
@@ -30,6 +29,7 @@ struct mount {
 	struct mount *mnt_parent;
 	struct dentry *mnt_mountpoint;
 	struct vfsmount mnt;
+	struct rcu_head mnt_rcu;
 #ifdef CONFIG_SMP
 	struct mnt_pcp __percpu *mnt_pcp;
 #else
@@ -80,21 +80,23 @@ static inline int is_mounted(struct vfsmount *mnt)
 extern struct mount *__lookup_mnt(struct vfsmount *, struct dentry *);
 extern struct mount *__lookup_mnt_last(struct vfsmount *, struct dentry *);
 
+extern bool legitimize_mnt(struct vfsmount *, unsigned);
+
 static inline void get_mnt_ns(struct mnt_namespace *ns)
 {
 	atomic_inc(&ns->count);
 }
 
-extern struct lglock vfsmount_lock;
+extern seqlock_t mount_lock;
 
 static inline void lock_mount_hash(void)
 {
-	br_write_lock(&vfsmount_lock);
+	write_seqlock(&mount_lock);
 }
 
 static inline void unlock_mount_hash(void)
 {
-	br_write_unlock(&vfsmount_lock);
+	write_sequnlock(&mount_lock);
 }
 
 struct proc_mounts {
diff --git a/fs/namei.c b/fs/namei.c
index 1f844fbfce72..cb0ebae07e52 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -484,14 +484,12 @@ EXPORT_SYMBOL(path_put);
 
 static inline void lock_rcu_walk(void)
 {
-	br_read_lock(&vfsmount_lock);
 	rcu_read_lock();
 }
 
 static inline void unlock_rcu_walk(void)
 {
 	rcu_read_unlock();
-	br_read_unlock(&vfsmount_lock);
 }
 
 /**
@@ -512,26 +510,23 @@ static int unlazy_walk(struct nameidata *nd, struct dentry *dentry)
 	BUG_ON(!(nd->flags & LOOKUP_RCU));
 
 	/*
-	 * Get a reference to the parent first: we're
-	 * going to make "path_put(nd->path)" valid in
-	 * non-RCU context for "terminate_walk()".
-	 *
-	 * If this doesn't work, return immediately with
-	 * RCU walking still active (and then we will do
-	 * the RCU walk cleanup in terminate_walk()).
+	 * After legitimizing the bastards, terminate_walk()
+	 * will do the right thing for non-RCU mode, and all our
+	 * subsequent exit cases should rcu_read_unlock()
+	 * before returning.  Do vfsmount first; if dentry
+	 * can't be legitimized, just set nd->path.dentry to NULL
+	 * and rely on dput(NULL) being a no-op.
 	 */
-	if (!lockref_get_not_dead(&parent->d_lockref))
+	if (!legitimize_mnt(nd->path.mnt, nd->m_seq))
 		return -ECHILD;
-
-	/*
-	 * After the mntget(), we terminate_walk() will do
-	 * the right thing for non-RCU mode, and all our
-	 * subsequent exit cases should unlock_rcu_walk()
-	 * before returning.
-	 */
-	mntget(nd->path.mnt);
 	nd->flags &= ~LOOKUP_RCU;
 
+	if (!lockref_get_not_dead(&parent->d_lockref)) {
+		nd->path.dentry = NULL;	
+		unlock_rcu_walk();
+		return -ECHILD;
+	}
+
 	/*
 	 * For a negative lookup, the lookup sequence point is the parents
 	 * sequence point, and it only needs to revalidate the parent dentry.
@@ -608,16 +603,21 @@ static int complete_walk(struct nameidata *nd)
 		if (!(nd->flags & LOOKUP_ROOT))
 			nd->root.mnt = NULL;
 
+		if (!legitimize_mnt(nd->path.mnt, nd->m_seq)) {
+			unlock_rcu_walk();
+			return -ECHILD;
+		}
 		if (unlikely(!lockref_get_not_dead(&dentry->d_lockref))) {
 			unlock_rcu_walk();
+			mntput(nd->path.mnt);
 			return -ECHILD;
 		}
 		if (read_seqcount_retry(&dentry->d_seq, nd->seq)) {
 			unlock_rcu_walk();
 			dput(dentry);
+			mntput(nd->path.mnt);
 			return -ECHILD;
 		}
-		mntget(nd->path.mnt);
 		unlock_rcu_walk();
 	}
 
@@ -909,15 +909,15 @@ int follow_up(struct path *path)
 	struct mount *parent;
 	struct dentry *mountpoint;
 
-	br_read_lock(&vfsmount_lock);
+	read_seqlock_excl(&mount_lock);
 	parent = mnt->mnt_parent;
 	if (parent == mnt) {
-		br_read_unlock(&vfsmount_lock);
+		read_sequnlock_excl(&mount_lock);
 		return 0;
 	}
 	mntget(&parent->mnt);
 	mountpoint = dget(mnt->mnt_mountpoint);
-	br_read_unlock(&vfsmount_lock);
+	read_sequnlock_excl(&mount_lock);
 	dput(path->dentry);
 	path->dentry = mountpoint;
 	mntput(path->mnt);
@@ -1048,8 +1048,8 @@ static int follow_managed(struct path *path, unsigned flags)
 
 			/* Something is mounted on this dentry in another
 			 * namespace and/or whatever was mounted there in this
-			 * namespace got unmounted before we managed to get the
-			 * vfsmount_lock */
+			 * namespace got unmounted before lookup_mnt() could
+			 * get it */
 		}
 
 		/* Handle an automount point */
@@ -1864,6 +1864,7 @@ static int path_init(int dfd, const char *name, unsigned int flags,
 		if (flags & LOOKUP_RCU) {
 			lock_rcu_walk();
 			nd->seq = __read_seqcount_begin(&nd->path.dentry->d_seq);
+			nd->m_seq = read_seqbegin(&mount_lock);
 		} else {
 			path_get(&nd->path);
 		}
@@ -1872,6 +1873,7 @@ static int path_init(int dfd, const char *name, unsigned int flags,
 
 	nd->root.mnt = NULL;
 
+	nd->m_seq = read_seqbegin(&mount_lock);
 	if (*name=='/') {
 		if (flags & LOOKUP_RCU) {
 			lock_rcu_walk();
diff --git a/fs/namespace.c b/fs/namespace.c
index 500202ce10db..ac2ce8a766e1 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -53,7 +53,7 @@ EXPORT_SYMBOL_GPL(fs_kobj);
  * It should be taken for write in all cases where the vfsmount
  * tree or hash is modified or when a vfsmount structure is modified.
  */
-DEFINE_BRLOCK(vfsmount_lock);
+__cacheline_aligned_in_smp DEFINE_SEQLOCK(mount_lock);
 
 static inline unsigned long hash(struct vfsmount *mnt, struct dentry *dentry)
 {
@@ -547,16 +547,38 @@ static void free_vfsmnt(struct mount *mnt)
 	kmem_cache_free(mnt_cache, mnt);
 }
 
+/* call under rcu_read_lock */
+bool legitimize_mnt(struct vfsmount *bastard, unsigned seq)
+{
+	struct mount *mnt;
+	if (read_seqretry(&mount_lock, seq))
+		return false;
+	if (bastard == NULL)
+		return true;
+	mnt = real_mount(bastard);
+	mnt_add_count(mnt, 1);
+	if (likely(!read_seqretry(&mount_lock, seq)))
+		return true;
+	if (bastard->mnt_flags & MNT_SYNC_UMOUNT) {
+		mnt_add_count(mnt, -1);
+		return false;
+	}
+	rcu_read_unlock();
+	mntput(bastard);
+	rcu_read_lock();
+	return false;
+}
+
 /*
  * find the first mount at @dentry on vfsmount @mnt.
- * vfsmount_lock must be held for read or write.
+ * call under rcu_read_lock()
  */
 struct mount *__lookup_mnt(struct vfsmount *mnt, struct dentry *dentry)
 {
 	struct list_head *head = mount_hashtable + hash(mnt, dentry);
 	struct mount *p;
 
-	list_for_each_entry(p, head, mnt_hash)
+	list_for_each_entry_rcu(p, head, mnt_hash)
 		if (&p->mnt_parent->mnt == mnt && p->mnt_mountpoint == dentry)
 			return p;
 	return NULL;
@@ -564,7 +586,7 @@ struct mount *__lookup_mnt(struct vfsmount *mnt, struct dentry *dentry)
 
 /*
  * find the last mount at @dentry on vfsmount @mnt.
- * vfsmount_lock must be held for read or write.
+ * mount_lock must be held.
  */
 struct mount *__lookup_mnt_last(struct vfsmount *mnt, struct dentry *dentry)
 {
@@ -596,17 +618,17 @@ struct mount *__lookup_mnt_last(struct vfsmount *mnt, struct dentry *dentry)
 struct vfsmount *lookup_mnt(struct path *path)
 {
 	struct mount *child_mnt;
+	struct vfsmount *m;
+	unsigned seq;
 
-	br_read_lock(&vfsmount_lock);
-	child_mnt = __lookup_mnt(path->mnt, path->dentry);
-	if (child_mnt) {
-		mnt_add_count(child_mnt, 1);
-		br_read_unlock(&vfsmount_lock);
-		return &child_mnt->mnt;
-	} else {
-		br_read_unlock(&vfsmount_lock);
-		return NULL;
-	}
+	rcu_read_lock();
+	do {
+		seq = read_seqbegin(&mount_lock);
+		child_mnt = __lookup_mnt(path->mnt, path->dentry);
+		m = child_mnt ? &child_mnt->mnt : NULL;
+	} while (!legitimize_mnt(m, seq));
+	rcu_read_unlock();
+	return m;
 }
 
 static struct mountpoint *new_mountpoint(struct dentry *dentry)
@@ -874,38 +896,46 @@ static struct mount *clone_mnt(struct mount *old, struct dentry *root,
 	return ERR_PTR(err);
 }
 
+static void delayed_free(struct rcu_head *head)
+{
+	struct mount *mnt = container_of(head, struct mount, mnt_rcu);
+	kfree(mnt->mnt_devname);
+#ifdef CONFIG_SMP
+	free_percpu(mnt->mnt_pcp);
+#endif
+	kmem_cache_free(mnt_cache, mnt);
+}
+
 static void mntput_no_expire(struct mount *mnt)
 {
 put_again:
-#ifdef CONFIG_SMP
-	br_read_lock(&vfsmount_lock);
-	if (likely(mnt->mnt_ns)) {
-		/* shouldn't be the last one */
-		mnt_add_count(mnt, -1);
-		br_read_unlock(&vfsmount_lock);
+	rcu_read_lock();
+	mnt_add_count(mnt, -1);
+	if (likely(mnt->mnt_ns)) { /* shouldn't be the last one */
+		rcu_read_unlock();
 		return;
 	}
-	br_read_unlock(&vfsmount_lock);
-
 	lock_mount_hash();
-	mnt_add_count(mnt, -1);
 	if (mnt_get_count(mnt)) {
+		rcu_read_unlock();
 		unlock_mount_hash();
 		return;
 	}
-#else
-	mnt_add_count(mnt, -1);
-	if (likely(mnt_get_count(mnt)))
-		return;
-	lock_mount_hash();
-#endif
 	if (unlikely(mnt->mnt_pinned)) {
 		mnt_add_count(mnt, mnt->mnt_pinned + 1);
 		mnt->mnt_pinned = 0;
+		rcu_read_unlock();
 		unlock_mount_hash();
 		acct_auto_close_mnt(&mnt->mnt);
 		goto put_again;
 	}
+	if (unlikely(mnt->mnt.mnt_flags & MNT_DOOMED)) {
+		rcu_read_unlock();
+		unlock_mount_hash();
+		return;
+	}
+	mnt->mnt.mnt_flags |= MNT_DOOMED;
+	rcu_read_unlock();
 
 	list_del(&mnt->mnt_instance);
 	unlock_mount_hash();
@@ -924,7 +954,8 @@ put_again:
 	fsnotify_vfsmount_delete(&mnt->mnt);
 	dput(mnt->mnt.mnt_root);
 	deactivate_super(mnt->mnt.mnt_sb);
-	free_vfsmnt(mnt);
+	mnt_free_id(mnt);
+	call_rcu(&mnt->mnt_rcu, delayed_free);
 }
 
 void mntput(struct vfsmount *mnt)
@@ -1137,6 +1168,8 @@ static void namespace_unlock(void)
 	list_splice_init(&unmounted, &head);
 	up_write(&namespace_sem);
 
+	synchronize_rcu();
+
 	while (!list_empty(&head)) {
 		mnt = list_first_entry(&head, struct mount, mnt_hash);
 		list_del_init(&mnt->mnt_hash);
@@ -1152,10 +1185,13 @@ static inline void namespace_lock(void)
 }
 
 /*
- * vfsmount lock must be held for write
+ * mount_lock must be held
  * namespace_sem must be held for write
+ * how = 0 => just this tree, don't propagate
+ * how = 1 => propagate; we know that nobody else has reference to any victims
+ * how = 2 => lazy umount
  */
-void umount_tree(struct mount *mnt, int propagate)
+void umount_tree(struct mount *mnt, int how)
 {
 	LIST_HEAD(tmp_list);
 	struct mount *p;
@@ -1163,7 +1199,7 @@ void umount_tree(struct mount *mnt, int propagate)
 	for (p = mnt; p; p = next_mnt(p, mnt))
 		list_move(&p->mnt_hash, &tmp_list);
 
-	if (propagate)
+	if (how)
 		propagate_umount(&tmp_list);
 
 	list_for_each_entry(p, &tmp_list, mnt_hash) {
@@ -1171,6 +1207,8 @@ void umount_tree(struct mount *mnt, int propagate)
 		list_del_init(&p->mnt_list);
 		__touch_mnt_namespace(p->mnt_ns);
 		p->mnt_ns = NULL;
+		if (how < 2)
+			p->mnt.mnt_flags |= MNT_SYNC_UMOUNT;
 		list_del_init(&p->mnt_child);
 		if (mnt_has_parent(p)) {
 			put_mountpoint(p->mnt_mp);
@@ -1262,14 +1300,18 @@ static int do_umount(struct mount *mnt, int flags)
 	lock_mount_hash();
 	event++;
 
-	if (!(flags & MNT_DETACH))
-		shrink_submounts(mnt);
-
-	retval = -EBUSY;
-	if (flags & MNT_DETACH || !propagate_mount_busy(mnt, 2)) {
+	if (flags & MNT_DETACH) {
 		if (!list_empty(&mnt->mnt_list))
-			umount_tree(mnt, 1);
+			umount_tree(mnt, 2);
 		retval = 0;
+	} else {
+		shrink_submounts(mnt);
+		retval = -EBUSY;
+		if (!propagate_mount_busy(mnt, 2)) {
+			if (!list_empty(&mnt->mnt_list))
+				umount_tree(mnt, 1);
+			retval = 0;
+		}
 	}
 	unlock_mount_hash();
 	namespace_unlock();
@@ -1955,7 +1997,7 @@ static int do_add_mount(struct mount *newmnt, struct path *path, int mnt_flags)
 	struct mount *parent;
 	int err;
 
-	mnt_flags &= ~(MNT_SHARED | MNT_WRITE_HOLD | MNT_INTERNAL);
+	mnt_flags &= ~(MNT_SHARED | MNT_WRITE_HOLD | MNT_INTERNAL | MNT_DOOMED | MNT_SYNC_UMOUNT);
 
 	mp = lock_mount(path);
 	if (IS_ERR(mp))
@@ -2172,7 +2214,7 @@ resume:
  * process a list of expirable mountpoints with the intent of discarding any
  * submounts of a specific parent mountpoint
  *
- * vfsmount_lock must be held for write
+ * mount_lock must be held for write
  */
 static void shrink_submounts(struct mount *mnt)
 {
@@ -2558,7 +2600,7 @@ out_type:
 /*
  * Return true if path is reachable from root
  *
- * namespace_sem or vfsmount_lock is held
+ * namespace_sem or mount_lock is held
  */
 bool is_path_reachable(struct mount *mnt, struct dentry *dentry,
 			 const struct path *root)
@@ -2573,9 +2615,9 @@ bool is_path_reachable(struct mount *mnt, struct dentry *dentry,
 int path_is_under(struct path *path1, struct path *path2)
 {
 	int res;
-	br_read_lock(&vfsmount_lock);
+	read_seqlock_excl(&mount_lock);
 	res = is_path_reachable(real_mount(path1->mnt), path1->dentry, path2);
-	br_read_unlock(&vfsmount_lock);
+	read_sequnlock_excl(&mount_lock);
 	return res;
 }
 EXPORT_SYMBOL(path_is_under);
@@ -2748,8 +2790,6 @@ void __init mnt_init(void)
 	for (u = 0; u < HASH_SIZE; u++)
 		INIT_LIST_HEAD(&mountpoint_hashtable[u]);
 
-	br_lock_init(&vfsmount_lock);
-
 	err = sysfs_init();
 	if (err)
 		printk(KERN_WARNING "%s: sysfs_init error: %d\n",
@@ -2788,9 +2828,8 @@ void kern_unmount(struct vfsmount *mnt)
 {
 	/* release long term mount so mount point can be released */
 	if (!IS_ERR_OR_NULL(mnt)) {
-		lock_mount_hash();
 		real_mount(mnt)->mnt_ns = NULL;
-		unlock_mount_hash();
+		synchronize_rcu();	/* yecchhh... */
 		mntput(mnt);
 	}
 }
diff --git a/include/linux/mount.h b/include/linux/mount.h
index 38cd98f112a0..371d346fa270 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -49,6 +49,8 @@ struct mnt_namespace;
 
 #define MNT_LOCK_READONLY	0x400000
 #define MNT_LOCKED		0x800000
+#define MNT_DOOMED		0x1000000
+#define MNT_SYNC_UMOUNT		0x2000000
 
 struct vfsmount {
 	struct dentry *mnt_root;	/* root of the mounted tree */
diff --git a/include/linux/namei.h b/include/linux/namei.h
index 8e47bc7a1665..492de72560fa 100644
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -16,7 +16,7 @@ struct nameidata {
 	struct path	root;
 	struct inode	*inode; /* path.dentry.d_inode */
 	unsigned int	flags;
-	unsigned	seq;
+	unsigned	seq, m_seq;
 	int		last_type;
 	unsigned	depth;
 	char *saved_names[MAX_NESTED_LINKS + 1];
-- 
cgit 


From 8b61e74ffc6310e1d35a9b51c8463093851f8bcf Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 8 Nov 2013 12:45:01 -0500
Subject: get rid of {lock,unlock}_rcu_walk()

those have become aliases for rcu_read_{lock,unlock}()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/namei.c | 38 ++++++++++++++------------------------
 1 file changed, 14 insertions(+), 24 deletions(-)

diff --git a/fs/namei.c b/fs/namei.c
index cb0ebae07e52..e5c0118ba9f8 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -482,16 +482,6 @@ EXPORT_SYMBOL(path_put);
  * to restart the path walk from the beginning in ref-walk mode.
  */
 
-static inline void lock_rcu_walk(void)
-{
-	rcu_read_lock();
-}
-
-static inline void unlock_rcu_walk(void)
-{
-	rcu_read_unlock();
-}
-
 /**
  * unlazy_walk - try to switch to ref-walk mode.
  * @nd: nameidata pathwalk data
@@ -523,7 +513,7 @@ static int unlazy_walk(struct nameidata *nd, struct dentry *dentry)
 
 	if (!lockref_get_not_dead(&parent->d_lockref)) {
 		nd->path.dentry = NULL;	
-		unlock_rcu_walk();
+		rcu_read_unlock();
 		return -ECHILD;
 	}
 
@@ -561,17 +551,17 @@ static int unlazy_walk(struct nameidata *nd, struct dentry *dentry)
 		spin_unlock(&fs->lock);
 	}
 
-	unlock_rcu_walk();
+	rcu_read_unlock();
 	return 0;
 
 unlock_and_drop_dentry:
 	spin_unlock(&fs->lock);
 drop_dentry:
-	unlock_rcu_walk();
+	rcu_read_unlock();
 	dput(dentry);
 	goto drop_root_mnt;
 out:
-	unlock_rcu_walk();
+	rcu_read_unlock();
 drop_root_mnt:
 	if (!(nd->flags & LOOKUP_ROOT))
 		nd->root.mnt = NULL;
@@ -604,21 +594,21 @@ static int complete_walk(struct nameidata *nd)
 			nd->root.mnt = NULL;
 
 		if (!legitimize_mnt(nd->path.mnt, nd->m_seq)) {
-			unlock_rcu_walk();
+			rcu_read_unlock();
 			return -ECHILD;
 		}
 		if (unlikely(!lockref_get_not_dead(&dentry->d_lockref))) {
-			unlock_rcu_walk();
+			rcu_read_unlock();
 			mntput(nd->path.mnt);
 			return -ECHILD;
 		}
 		if (read_seqcount_retry(&dentry->d_seq, nd->seq)) {
-			unlock_rcu_walk();
+			rcu_read_unlock();
 			dput(dentry);
 			mntput(nd->path.mnt);
 			return -ECHILD;
 		}
-		unlock_rcu_walk();
+		rcu_read_unlock();
 	}
 
 	if (likely(!(nd->flags & LOOKUP_JUMPED)))
@@ -1174,7 +1164,7 @@ failed:
 	nd->flags &= ~LOOKUP_RCU;
 	if (!(nd->flags & LOOKUP_ROOT))
 		nd->root.mnt = NULL;
-	unlock_rcu_walk();
+	rcu_read_unlock();
 	return -ECHILD;
 }
 
@@ -1501,7 +1491,7 @@ static void terminate_walk(struct nameidata *nd)
 		nd->flags &= ~LOOKUP_RCU;
 		if (!(nd->flags & LOOKUP_ROOT))
 			nd->root.mnt = NULL;
-		unlock_rcu_walk();
+		rcu_read_unlock();
 	}
 }
 
@@ -1862,7 +1852,7 @@ static int path_init(int dfd, const char *name, unsigned int flags,
 		nd->path = nd->root;
 		nd->inode = inode;
 		if (flags & LOOKUP_RCU) {
-			lock_rcu_walk();
+			rcu_read_lock();
 			nd->seq = __read_seqcount_begin(&nd->path.dentry->d_seq);
 			nd->m_seq = read_seqbegin(&mount_lock);
 		} else {
@@ -1876,7 +1866,7 @@ static int path_init(int dfd, const char *name, unsigned int flags,
 	nd->m_seq = read_seqbegin(&mount_lock);
 	if (*name=='/') {
 		if (flags & LOOKUP_RCU) {
-			lock_rcu_walk();
+			rcu_read_lock();
 			set_root_rcu(nd);
 		} else {
 			set_root(nd);
@@ -1888,7 +1878,7 @@ static int path_init(int dfd, const char *name, unsigned int flags,
 			struct fs_struct *fs = current->fs;
 			unsigned seq;
 
-			lock_rcu_walk();
+			rcu_read_lock();
 
 			do {
 				seq = read_seqcount_begin(&fs->seq);
@@ -1920,7 +1910,7 @@ static int path_init(int dfd, const char *name, unsigned int flags,
 			if (f.need_put)
 				*fp = f.file;
 			nd->seq = __read_seqcount_begin(&nd->path.dentry->d_seq);
-			lock_rcu_walk();
+			rcu_read_lock();
 		} else {
 			path_get(&nd->path);
 			fdput(f);
-- 
cgit 


From eee5cc2702929fd41cce28058dc6d6717f723f87 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 4 Oct 2013 11:06:42 -0400
Subject: get rid of s_files and files_lock

The only thing we need it for is alt-sysrq-r (emergency remount r/o)
and these days we can do just as well without going through the
list of files.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/file_table.c    | 125 -----------------------------------------------------
 fs/internal.h      |   3 --
 fs/open.c          |   2 -
 fs/super.c         |  15 +------
 include/linux/fs.h |  13 ------
 5 files changed, 2 insertions(+), 156 deletions(-)

diff --git a/fs/file_table.c b/fs/file_table.c
index e61e5529fa9d..23b6dca03ba0 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -36,8 +36,6 @@ struct files_stat_struct files_stat = {
 	.max_files = NR_FILE
 };
 
-DEFINE_STATIC_LGLOCK(files_lglock);
-
 /* SLAB cache for file structures */
 static struct kmem_cache *filp_cachep __read_mostly;
 
@@ -134,7 +132,6 @@ struct file *get_empty_filp(void)
 		return ERR_PTR(error);
 	}
 
-	INIT_LIST_HEAD(&f->f_u.fu_list);
 	atomic_long_set(&f->f_count, 1);
 	rwlock_init(&f->f_owner.lock);
 	spin_lock_init(&f->f_lock);
@@ -304,7 +301,6 @@ void fput(struct file *file)
 	if (atomic_long_dec_and_test(&file->f_count)) {
 		struct task_struct *task = current;
 
-		file_sb_list_del(file);
 		if (likely(!in_interrupt() && !(task->flags & PF_KTHREAD))) {
 			init_task_work(&file->f_u.fu_rcuhead, ____fput);
 			if (!task_work_add(task, &file->f_u.fu_rcuhead, true))
@@ -333,7 +329,6 @@ void __fput_sync(struct file *file)
 {
 	if (atomic_long_dec_and_test(&file->f_count)) {
 		struct task_struct *task = current;
-		file_sb_list_del(file);
 		BUG_ON(!(task->flags & PF_KTHREAD));
 		__fput(file);
 	}
@@ -345,129 +340,10 @@ void put_filp(struct file *file)
 {
 	if (atomic_long_dec_and_test(&file->f_count)) {
 		security_file_free(file);
-		file_sb_list_del(file);
 		file_free(file);
 	}
 }
 
-static inline int file_list_cpu(struct file *file)
-{
-#ifdef CONFIG_SMP
-	return file->f_sb_list_cpu;
-#else
-	return smp_processor_id();
-#endif
-}
-
-/* helper for file_sb_list_add to reduce ifdefs */
-static inline void __file_sb_list_add(struct file *file, struct super_block *sb)
-{
-	struct list_head *list;
-#ifdef CONFIG_SMP
-	int cpu;
-	cpu = smp_processor_id();
-	file->f_sb_list_cpu = cpu;
-	list = per_cpu_ptr(sb->s_files, cpu);
-#else
-	list = &sb->s_files;
-#endif
-	list_add(&file->f_u.fu_list, list);
-}
-
-/**
- * file_sb_list_add - add a file to the sb's file list
- * @file: file to add
- * @sb: sb to add it to
- *
- * Use this function to associate a file with the superblock of the inode it
- * refers to.
- */
-void file_sb_list_add(struct file *file, struct super_block *sb)
-{
-	if (likely(!(file->f_mode & FMODE_WRITE)))
-		return;
-	if (!S_ISREG(file_inode(file)->i_mode))
-		return;
-	lg_local_lock(&files_lglock);
-	__file_sb_list_add(file, sb);
-	lg_local_unlock(&files_lglock);
-}
-
-/**
- * file_sb_list_del - remove a file from the sb's file list
- * @file: file to remove
- * @sb: sb to remove it from
- *
- * Use this function to remove a file from its superblock.
- */
-void file_sb_list_del(struct file *file)
-{
-	if (!list_empty(&file->f_u.fu_list)) {
-		lg_local_lock_cpu(&files_lglock, file_list_cpu(file));
-		list_del_init(&file->f_u.fu_list);
-		lg_local_unlock_cpu(&files_lglock, file_list_cpu(file));
-	}
-}
-
-#ifdef CONFIG_SMP
-
-/*
- * These macros iterate all files on all CPUs for a given superblock.
- * files_lglock must be held globally.
- */
-#define do_file_list_for_each_entry(__sb, __file)		\
-{								\
-	int i;							\
-	for_each_possible_cpu(i) {				\
-		struct list_head *list;				\
-		list = per_cpu_ptr((__sb)->s_files, i);		\
-		list_for_each_entry((__file), list, f_u.fu_list)
-
-#define while_file_list_for_each_entry				\
-	}							\
-}
-
-#else
-
-#define do_file_list_for_each_entry(__sb, __file)		\
-{								\
-	struct list_head *list;					\
-	list = &(sb)->s_files;					\
-	list_for_each_entry((__file), list, f_u.fu_list)
-
-#define while_file_list_for_each_entry				\
-}
-
-#endif
-
-/**
- *	mark_files_ro - mark all files read-only
- *	@sb: superblock in question
- *
- *	All files are marked read-only.  We don't care about pending
- *	delete files so this should be used in 'force' mode only.
- */
-void mark_files_ro(struct super_block *sb)
-{
-	struct file *f;
-
-	lg_global_lock(&files_lglock);
-	do_file_list_for_each_entry(sb, f) {
-		if (!file_count(f))
-			continue;
-		if (!(f->f_mode & FMODE_WRITE))
-			continue;
-		spin_lock(&f->f_lock);
-		f->f_mode &= ~FMODE_WRITE;
-		spin_unlock(&f->f_lock);
-		if (file_check_writeable(f) != 0)
-			continue;
-		__mnt_drop_write(f->f_path.mnt);
-		file_release_write(f);
-	} while_file_list_for_each_entry;
-	lg_global_unlock(&files_lglock);
-}
-
 void __init files_init(unsigned long mempages)
 { 
 	unsigned long n;
@@ -483,6 +359,5 @@ void __init files_init(unsigned long mempages)
 	n = (mempages * (PAGE_SIZE / 1024)) / 10;
 	files_stat.max_files = max_t(unsigned long, n, NR_FILE);
 	files_defer_init();
-	lg_lock_init(&files_lglock, "files_lglock");
 	percpu_counter_init(&nr_files, 0);
 } 
diff --git a/fs/internal.h b/fs/internal.h
index 4a11e75ce14d..465742407466 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -73,9 +73,6 @@ extern void chroot_fs_refs(const struct path *, const struct path *);
 /*
  * file_table.c
  */
-extern void file_sb_list_add(struct file *f, struct super_block *sb);
-extern void file_sb_list_del(struct file *f);
-extern void mark_files_ro(struct super_block *);
 extern struct file *get_empty_filp(void);
 
 /*
diff --git a/fs/open.c b/fs/open.c
index a1465b1ec8c7..fffbed40dbe9 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -685,7 +685,6 @@ static int do_dentry_open(struct file *f,
 	}
 
 	f->f_mapping = inode->i_mapping;
-	file_sb_list_add(f, inode->i_sb);
 
 	if (unlikely(f->f_mode & FMODE_PATH)) {
 		f->f_op = &empty_fops;
@@ -724,7 +723,6 @@ static int do_dentry_open(struct file *f,
 
 cleanup_all:
 	fops_put(f->f_op);
-	file_sb_list_del(f);
 	if (f->f_mode & FMODE_WRITE) {
 		put_write_access(inode);
 		if (!special_file(inode->i_mode)) {
diff --git a/fs/super.c b/fs/super.c
index 743bb7118053..e5f6c2cfac38 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -140,9 +140,6 @@ static void destroy_super(struct super_block *s)
 	int i;
 	list_lru_destroy(&s->s_dentry_lru);
 	list_lru_destroy(&s->s_inode_lru);
-#ifdef CONFIG_SMP
-	free_percpu(s->s_files);
-#endif
 	for (i = 0; i < SB_FREEZE_LEVELS; i++)
 		percpu_counter_destroy(&s->s_writers.counter[i]);
 	security_sb_free(s);
@@ -172,15 +169,6 @@ static struct super_block *alloc_super(struct file_system_type *type, int flags)
 	if (security_sb_alloc(s))
 		goto fail;
 
-#ifdef CONFIG_SMP
-	s->s_files = alloc_percpu(struct list_head);
-	if (!s->s_files)
-		goto fail;
-	for_each_possible_cpu(i)
-		INIT_LIST_HEAD(per_cpu_ptr(s->s_files, i));
-#else
-	INIT_LIST_HEAD(&s->s_files);
-#endif
 	for (i = 0; i < SB_FREEZE_LEVELS; i++) {
 		if (percpu_counter_init(&s->s_writers.counter[i], 0) < 0)
 			goto fail;
@@ -722,7 +710,8 @@ int do_remount_sb(struct super_block *sb, int flags, void *data, int force)
 	   make sure there are no rw files opened */
 	if (remount_ro) {
 		if (force) {
-			mark_files_ro(sb);
+			sb->s_readonly_remount = 1;
+			smp_wmb();
 		} else {
 			retval = sb_prepare_remount_readonly(sb);
 			if (retval)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 2ab8a67ee054..2b0f4e974480 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -764,12 +764,7 @@ static inline int ra_has_index(struct file_ra_state *ra, pgoff_t index)
 #define FILE_MNT_WRITE_RELEASED	2
 
 struct file {
-	/*
-	 * fu_list becomes invalid after file_free is called and queued via
-	 * fu_rcuhead for RCU freeing
-	 */
 	union {
-		struct list_head	fu_list;
 		struct llist_node	fu_llist;
 		struct rcu_head 	fu_rcuhead;
 	} f_u;
@@ -783,9 +778,6 @@ struct file {
 	 * Must not be taken from IRQ context.
 	 */
 	spinlock_t		f_lock;
-#ifdef CONFIG_SMP
-	int			f_sb_list_cpu;
-#endif
 	atomic_long_t		f_count;
 	unsigned int 		f_flags;
 	fmode_t			f_mode;
@@ -1264,11 +1256,6 @@ struct super_block {
 
 	struct list_head	s_inodes;	/* all inodes */
 	struct hlist_bl_head	s_anon;		/* anonymous dentries for (nfs) exporting */
-#ifdef CONFIG_SMP
-	struct list_head __percpu *s_files;
-#else
-	struct list_head	s_files;
-#endif
 	struct list_head	s_mounts;	/* list of mounts; _not_ for fs use */
 	struct block_device	*s_bdev;
 	struct backing_dev_info *s_bdi;
-- 
cgit 


From b61625d24596ea44555943867d5a5c1efd81074c Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 4 Oct 2013 11:09:01 -0400
Subject: fold __d_shrink() into its only remaining caller

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/dcache.c | 32 ++++++++++----------------------
 1 file changed, 10 insertions(+), 22 deletions(-)

diff --git a/fs/dcache.c b/fs/dcache.c
index aafa2a146434..fb7bcf3ba5d6 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -483,27 +483,6 @@ static struct dentry *d_kill(struct dentry *dentry, struct dentry *parent)
 	return parent;
 }
 
-/*
- * Unhash a dentry without inserting an RCU walk barrier or checking that
- * dentry->d_lock is locked.  The caller must take care of that, if
- * appropriate.
- */
-static void __d_shrink(struct dentry *dentry)
-{
-	if (!d_unhashed(dentry)) {
-		struct hlist_bl_head *b;
-		if (unlikely(dentry->d_flags & DCACHE_DISCONNECTED))
-			b = &dentry->d_sb->s_anon;
-		else
-			b = d_hash(dentry->d_parent, dentry->d_name.hash);
-
-		hlist_bl_lock(b);
-		__hlist_bl_del(&dentry->d_hash);
-		dentry->d_hash.pprev = NULL;
-		hlist_bl_unlock(b);
-	}
-}
-
 /**
  * d_drop - drop a dentry
  * @dentry: dentry to drop
@@ -522,7 +501,16 @@ static void __d_shrink(struct dentry *dentry)
 void __d_drop(struct dentry *dentry)
 {
 	if (!d_unhashed(dentry)) {
-		__d_shrink(dentry);
+		struct hlist_bl_head *b;
+		if (unlikely(dentry->d_flags & DCACHE_DISCONNECTED))
+			b = &dentry->d_sb->s_anon;
+		else
+			b = d_hash(dentry->d_parent, dentry->d_name.hash);
+
+		hlist_bl_lock(b);
+		__hlist_bl_del(&dentry->d_hash);
+		dentry->d_hash.pprev = NULL;
+		hlist_bl_unlock(b);
 		dentry_rcuwalk_barrier(dentry);
 	}
 }
-- 
cgit 


From 11d100d9a291508be5a5bae1ddf92ea2ba9b8f0c Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 4 Oct 2013 18:17:02 -0400
Subject: coda_revalidate_inode(): switch to passing inode...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/coda/coda_linux.h | 2 +-
 fs/coda/dir.c        | 3 +--
 fs/coda/inode.c      | 2 +-
 3 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/fs/coda/coda_linux.h b/fs/coda/coda_linux.h
index cc0ea9fe5ecf..e7550cb9fb74 100644
--- a/fs/coda/coda_linux.h
+++ b/fs/coda/coda_linux.h
@@ -40,7 +40,7 @@ extern const struct file_operations coda_ioctl_operations;
 int coda_open(struct inode *i, struct file *f);
 int coda_release(struct inode *i, struct file *f);
 int coda_permission(struct inode *inode, int mask);
-int coda_revalidate_inode(struct dentry *);
+int coda_revalidate_inode(struct inode *);
 int coda_getattr(struct vfsmount *, struct dentry *, struct kstat *);
 int coda_setattr(struct dentry *, struct iattr *);
 
diff --git a/fs/coda/dir.c b/fs/coda/dir.c
index 8c8d469c9283..5efbb5ee0adc 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -563,13 +563,12 @@ static int coda_dentry_delete(const struct dentry * dentry)
  * cache manager Venus issues a downcall to the kernel when this 
  * happens 
  */
-int coda_revalidate_inode(struct dentry *dentry)
+int coda_revalidate_inode(struct inode *inode)
 {
 	struct coda_vattr attr;
 	int error;
 	int old_mode;
 	ino_t old_ino;
-	struct inode *inode = dentry->d_inode;
 	struct coda_inode_info *cii = ITOC(inode);
 
 	if (!cii->c_flags)
diff --git a/fs/coda/inode.c b/fs/coda/inode.c
index 4dcc0d81a7aa..506de34a4ef3 100644
--- a/fs/coda/inode.c
+++ b/fs/coda/inode.c
@@ -257,7 +257,7 @@ static void coda_evict_inode(struct inode *inode)
 
 int coda_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
 {
-	int err = coda_revalidate_inode(dentry);
+	int err = coda_revalidate_inode(dentry->d_inode);
 	if (!err)
 		generic_fillattr(dentry->d_inode, stat);
 	return err;
-- 
cgit 


From 0f6ed63b170778b9c93fb0ae4017f110c9ee6416 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 5 Oct 2013 14:19:39 -0400
Subject: no need to keep brlock macros anymore...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 include/linux/lglock.h | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/include/linux/lglock.h b/include/linux/lglock.h
index 0d24e932db0b..96549abe8842 100644
--- a/include/linux/lglock.h
+++ b/include/linux/lglock.h
@@ -25,16 +25,6 @@
 #include <linux/cpu.h>
 #include <linux/notifier.h>
 
-/* can make br locks by using local lock for read side, global lock for write */
-#define br_lock_init(name)	lg_lock_init(name, #name)
-#define br_read_lock(name)	lg_local_lock(name)
-#define br_read_unlock(name)	lg_local_unlock(name)
-#define br_write_lock(name)	lg_global_lock(name)
-#define br_write_unlock(name)	lg_global_unlock(name)
-
-#define DEFINE_BRLOCK(name)		DEFINE_LGLOCK(name)
-#define DEFINE_STATIC_BRLOCK(name)	DEFINE_STATIC_LGLOCK(name)
-
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
 #define LOCKDEP_INIT_MAP lockdep_init_map
 #else
-- 
cgit 


From 7d2f551f6dc933f87933e906e48583169bbc7c27 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 6 Oct 2013 11:10:08 -0400
Subject: restore 32bit aout coredump

just getting rid of bitrot

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/x86/ia32/ia32_aout.c | 70 ++++++++++++++++++++++++-----------------------
 1 file changed, 36 insertions(+), 34 deletions(-)

diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index bae3aba95b15..80361c00fb64 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -25,6 +25,7 @@
 #include <linux/personality.h>
 #include <linux/init.h>
 #include <linux/jiffies.h>
+#include <linux/perf_event.h>
 
 #include <asm/uaccess.h>
 #include <asm/pgalloc.h>
@@ -33,14 +34,18 @@
 #include <asm/ia32.h>
 
 #undef WARN_OLD
-#undef CORE_DUMP /* definitely broken */
 
 static int load_aout_binary(struct linux_binprm *);
 static int load_aout_library(struct file *);
 
-#ifdef CORE_DUMP
-static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file,
-			  unsigned long limit);
+#ifdef CONFIG_COREDUMP
+static int aout_core_dump(struct coredump_params *);
+
+static unsigned long get_dr(int n)
+{
+	struct perf_event *bp = current->thread.ptrace_bps[n];
+	return bp ? bp->hw.info.address : 0;
+}
 
 /*
  * fill in the user structure for a core dump..
@@ -48,6 +53,7 @@ static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file,
 static void dump_thread32(struct pt_regs *regs, struct user32 *dump)
 {
 	u32 fs, gs;
+	memset(dump, 0, sizeof(*dump));
 
 /* changed the size calculations - should hopefully work better. lbt */
 	dump->magic = CMAGIC;
@@ -57,15 +63,12 @@ static void dump_thread32(struct pt_regs *regs, struct user32 *dump)
 	dump->u_dsize = ((unsigned long)
 			 (current->mm->brk + (PAGE_SIZE-1))) >> PAGE_SHIFT;
 	dump->u_dsize -= dump->u_tsize;
-	dump->u_ssize = 0;
-	dump->u_debugreg[0] = current->thread.debugreg0;
-	dump->u_debugreg[1] = current->thread.debugreg1;
-	dump->u_debugreg[2] = current->thread.debugreg2;
-	dump->u_debugreg[3] = current->thread.debugreg3;
-	dump->u_debugreg[4] = 0;
-	dump->u_debugreg[5] = 0;
+	dump->u_debugreg[0] = get_dr(0);
+	dump->u_debugreg[1] = get_dr(1);
+	dump->u_debugreg[2] = get_dr(2);
+	dump->u_debugreg[3] = get_dr(3);
 	dump->u_debugreg[6] = current->thread.debugreg6;
-	dump->u_debugreg[7] = current->thread.debugreg7;
+	dump->u_debugreg[7] = current->thread.ptrace_dr7;
 
 	if (dump->start_stack < 0xc0000000) {
 		unsigned long tmp;
@@ -74,24 +77,24 @@ static void dump_thread32(struct pt_regs *regs, struct user32 *dump)
 		dump->u_ssize = tmp >> PAGE_SHIFT;
 	}
 
-	dump->regs.bx = regs->bx;
-	dump->regs.cx = regs->cx;
-	dump->regs.dx = regs->dx;
-	dump->regs.si = regs->si;
-	dump->regs.di = regs->di;
-	dump->regs.bp = regs->bp;
-	dump->regs.ax = regs->ax;
+	dump->regs.ebx = regs->bx;
+	dump->regs.ecx = regs->cx;
+	dump->regs.edx = regs->dx;
+	dump->regs.esi = regs->si;
+	dump->regs.edi = regs->di;
+	dump->regs.ebp = regs->bp;
+	dump->regs.eax = regs->ax;
 	dump->regs.ds = current->thread.ds;
 	dump->regs.es = current->thread.es;
 	savesegment(fs, fs);
 	dump->regs.fs = fs;
 	savesegment(gs, gs);
 	dump->regs.gs = gs;
-	dump->regs.orig_ax = regs->orig_ax;
-	dump->regs.ip = regs->ip;
+	dump->regs.orig_eax = regs->orig_ax;
+	dump->regs.eip = regs->ip;
 	dump->regs.cs = regs->cs;
-	dump->regs.flags = regs->flags;
-	dump->regs.sp = regs->sp;
+	dump->regs.eflags = regs->flags;
+	dump->regs.esp = regs->sp;
 	dump->regs.ss = regs->ss;
 
 #if 1 /* FIXME */
@@ -107,7 +110,7 @@ static struct linux_binfmt aout_format = {
 	.module		= THIS_MODULE,
 	.load_binary	= load_aout_binary,
 	.load_shlib	= load_aout_library,
-#ifdef CORE_DUMP
+#ifdef CONFIG_COREDUMP
 	.core_dump	= aout_core_dump,
 #endif
 	.min_coredump	= PAGE_SIZE
@@ -122,7 +125,7 @@ static void set_brk(unsigned long start, unsigned long end)
 	vm_brk(start, end - start);
 }
 
-#ifdef CORE_DUMP
+#ifdef CONFIG_COREDUMP
 /*
  * These are the only things you should do on a core-file: use only these
  * macros to write out all the necessary info.
@@ -131,14 +134,14 @@ static void set_brk(unsigned long start, unsigned long end)
 #include <linux/coredump.h>
 
 #define DUMP_WRITE(addr, nr)			     \
-	if (!dump_write(file, (void *)(addr), (nr))) \
+	if (!dump_write(cprm->file, (void *)(addr), (nr))) \
 		goto end_coredump;
 
 #define DUMP_SEEK(offset)		\
-	if (!dump_seek(file, offset))	\
+	if (!dump_seek(cprm->file, offset))	\
 		goto end_coredump;
 
-#define START_DATA()	(u.u_tsize << PAGE_SHIFT)
+#define START_DATA(u)	(u.u_tsize << PAGE_SHIFT)
 #define START_STACK(u)	(u.start_stack)
 
 /*
@@ -151,8 +154,7 @@ static void set_brk(unsigned long start, unsigned long end)
  * dumping of the process results in another error..
  */
 
-static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file,
-			  unsigned long limit)
+static int aout_core_dump(struct coredump_params *cprm)
 {
 	mm_segment_t fs;
 	int has_dumped = 0;
@@ -164,19 +166,19 @@ static int aout_core_dump(long signr, struct pt_regs *regs, struct file *file,
 	has_dumped = 1;
 	strncpy(dump.u_comm, current->comm, sizeof(current->comm));
 	dump.u_ar0 = offsetof(struct user32, regs);
-	dump.signal = signr;
-	dump_thread32(regs, &dump);
+	dump.signal = cprm->siginfo->si_signo;
+	dump_thread32(cprm->regs, &dump);
 
 	/*
 	 * If the size of the dump file exceeds the rlimit, then see
 	 * what would happen if we wrote the stack, but not the data
 	 * area.
 	 */
-	if ((dump.u_dsize + dump.u_ssize + 1) * PAGE_SIZE > limit)
+	if ((dump.u_dsize + dump.u_ssize + 1) * PAGE_SIZE > cprm->limit)
 		dump.u_dsize = 0;
 
 	/* Make sure we have enough room to write the stack and data areas. */
-	if ((dump.u_ssize + 1) * PAGE_SIZE > limit)
+	if ((dump.u_ssize + 1) * PAGE_SIZE > cprm->limit)
 		dump.u_ssize = 0;
 
 	/* make sure we actually have a data and stack area to dump */
-- 
cgit 


From ecc8c7725e6c21528329b34acae2a1d64b3af89b Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 5 Oct 2013 15:32:35 -0400
Subject: new helper: dump_emit()

dump_write() analog, takes core_dump_params instead of file,
keeps track of the amount written in cprm->written and checks for
cprm->limit.  Start using it in binfmt_elf.c...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/binfmt_elf.c          | 60 +++++++++++++++++++-----------------------------
 fs/coredump.c            | 14 +++++++++++
 include/linux/binfmts.h  |  1 +
 include/linux/coredump.h |  2 ++
 4 files changed, 40 insertions(+), 37 deletions(-)

diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 501c8a4d6eb1..00fd9c969a27 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1225,35 +1225,23 @@ static int notesize(struct memelfnote *en)
 	return sz;
 }
 
-#define DUMP_WRITE(addr, nr, foffset)	\
-	do { if (!dump_write(file, (addr), (nr))) return 0; *foffset += (nr); } while(0)
-
-static int alignfile(struct file *file, loff_t *foffset)
+static int alignfile(struct coredump_params *cprm)
 {
 	static const char buf[4] = { 0, };
-	DUMP_WRITE(buf, roundup(*foffset, 4) - *foffset, foffset);
-	return 1;
+	return dump_emit(cprm, buf, roundup(cprm->written, 4) - cprm->written);
 }
 
-static int writenote(struct memelfnote *men, struct file *file,
-			loff_t *foffset)
+static int writenote(struct memelfnote *men, struct coredump_params *cprm)
 {
 	struct elf_note en;
 	en.n_namesz = strlen(men->name) + 1;
 	en.n_descsz = men->datasz;
 	en.n_type = men->type;
 
-	DUMP_WRITE(&en, sizeof(en), foffset);
-	DUMP_WRITE(men->name, en.n_namesz, foffset);
-	if (!alignfile(file, foffset))
-		return 0;
-	DUMP_WRITE(men->data, men->datasz, foffset);
-	if (!alignfile(file, foffset))
-		return 0;
-
-	return 1;
+	return dump_emit(cprm, &en, sizeof(en)) &&
+	    dump_emit(cprm, men->name, en.n_namesz) && alignfile(cprm) &&
+	    dump_emit(cprm, men->data, men->datasz) && alignfile(cprm);
 }
-#undef DUMP_WRITE
 
 static void fill_elf_header(struct elfhdr *elf, int segs,
 			    u16 machine, u32 flags)
@@ -1702,7 +1690,7 @@ static size_t get_note_info_size(struct elf_note_info *info)
  * process-wide notes are interleaved after the first thread-specific note.
  */
 static int write_note_info(struct elf_note_info *info,
-			   struct file *file, loff_t *foffset)
+			   struct coredump_params *cprm)
 {
 	bool first = 1;
 	struct elf_thread_core_info *t = info->thread;
@@ -1710,22 +1698,22 @@ static int write_note_info(struct elf_note_info *info,
 	do {
 		int i;
 
-		if (!writenote(&t->notes[0], file, foffset))
+		if (!writenote(&t->notes[0], cprm))
 			return 0;
 
-		if (first && !writenote(&info->psinfo, file, foffset))
+		if (first && !writenote(&info->psinfo, cprm))
 			return 0;
-		if (first && !writenote(&info->signote, file, foffset))
+		if (first && !writenote(&info->signote, cprm))
 			return 0;
-		if (first && !writenote(&info->auxv, file, foffset))
+		if (first && !writenote(&info->auxv, cprm))
 			return 0;
 		if (first && info->files.data &&
-				!writenote(&info->files, file, foffset))
+				!writenote(&info->files, cprm))
 			return 0;
 
 		for (i = 1; i < info->thread_notes; ++i)
 			if (t->notes[i].data &&
-			    !writenote(&t->notes[i], file, foffset))
+			    !writenote(&t->notes[i], cprm))
 				return 0;
 
 		first = 0;
@@ -1935,13 +1923,13 @@ static size_t get_note_info_size(struct elf_note_info *info)
 }
 
 static int write_note_info(struct elf_note_info *info,
-			   struct file *file, loff_t *foffset)
+			   struct coredump_params *cprm)
 {
 	int i;
 	struct list_head *t;
 
 	for (i = 0; i < info->numnote; i++)
-		if (!writenote(info->notes + i, file, foffset))
+		if (!writenote(info->notes + i, cprm))
 			return 0;
 
 	/* write out the thread status notes section */
@@ -1950,7 +1938,7 @@ static int write_note_info(struct elf_note_info *info,
 				list_entry(t, struct elf_thread_status, list);
 
 		for (i = 0; i < tmp->num_notes; i++)
-			if (!writenote(&tmp->notes[i], file, foffset))
+			if (!writenote(&tmp->notes[i], cprm))
 				return 0;
 	}
 
@@ -2136,13 +2124,10 @@ static int elf_core_dump(struct coredump_params *cprm)
 
 	offset = dataoff;
 
-	size += sizeof(*elf);
-	if (size > cprm->limit || !dump_write(cprm->file, elf, sizeof(*elf)))
+	if (!dump_emit(cprm, elf, sizeof(*elf)))
 		goto end_coredump;
 
-	size += sizeof(*phdr4note);
-	if (size > cprm->limit
-	    || !dump_write(cprm->file, phdr4note, sizeof(*phdr4note)))
+	if (!dump_emit(cprm, phdr4note, sizeof(*phdr4note)))
 		goto end_coredump;
 
 	/* Write program headers for segments dump */
@@ -2164,19 +2149,20 @@ static int elf_core_dump(struct coredump_params *cprm)
 			phdr.p_flags |= PF_X;
 		phdr.p_align = ELF_EXEC_PAGESIZE;
 
-		size += sizeof(phdr);
-		if (size > cprm->limit
-		    || !dump_write(cprm->file, &phdr, sizeof(phdr)))
+		if (!dump_emit(cprm, &phdr, sizeof(phdr)))
 			goto end_coredump;
 	}
+	size = cprm->written;
 
 	if (!elf_core_write_extra_phdrs(cprm->file, offset, &size, cprm->limit))
 		goto end_coredump;
 
+	cprm->written = foffset;	/* will disappear */
  	/* write out the notes section */
-	if (!write_note_info(&info, cprm->file, &foffset))
+	if (!write_note_info(&info, cprm))
 		goto end_coredump;
 
+	foffset = cprm->written;
 	if (elf_coredump_extra_notes_write(cprm->file, &foffset))
 		goto end_coredump;
 
diff --git a/fs/coredump.c b/fs/coredump.c
index 42c3b8423669..319f973bab72 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -693,6 +693,20 @@ int dump_write(struct file *file, const void *addr, int nr)
 }
 EXPORT_SYMBOL(dump_write);
 
+int dump_emit(struct coredump_params *cprm, const void *addr, int nr)
+{
+	struct file *file = cprm->file;
+	if (dump_interrupted() || !access_ok(VERIFY_READ, addr, nr))
+		return 0;
+	if (cprm->written + nr > cprm->limit)
+		return 0;
+	if (file->f_op->write(file, addr, nr, &file->f_pos) != nr)
+		return 0;
+	cprm->written += nr;
+	return 1;
+}
+EXPORT_SYMBOL(dump_emit);
+
 int dump_seek(struct file *file, loff_t off)
 {
 	int ret = 1;
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index e8112ae50531..8aa507e7a41a 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -61,6 +61,7 @@ struct coredump_params {
 	struct file *file;
 	unsigned long limit;
 	unsigned long mm_flags;
+	loff_t written;
 };
 
 /*
diff --git a/include/linux/coredump.h b/include/linux/coredump.h
index a98f1ca60407..2959376a9ad5 100644
--- a/include/linux/coredump.h
+++ b/include/linux/coredump.h
@@ -10,8 +10,10 @@
  * These are the only things you should do on a core-file: use only these
  * functions to write out all the necessary info.
  */
+struct coredump_params;
 extern int dump_write(struct file *file, const void *addr, int nr);
 extern int dump_seek(struct file *file, loff_t off);
+extern int dump_emit(struct coredump_params *cprm, const void *addr, int nr);
 #ifdef CONFIG_COREDUMP
 extern void do_coredump(siginfo_t *siginfo);
 #else
-- 
cgit 


From 506f21c556c747bb07b893f146220ec45cda381b Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 5 Oct 2013 17:22:57 -0400
Subject: switch elf_core_write_extra_phdrs() to dump_emit()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/ia64/kernel/elfcore.c |  6 ++----
 arch/x86/um/elfcore.c      |  7 ++-----
 fs/binfmt_elf.c            |  4 ++--
 fs/binfmt_elf_fdpic.c      |  4 +++-
 include/linux/elfcore.h    |  5 +++--
 kernel/elfcore.c           | 10 +++-------
 6 files changed, 15 insertions(+), 21 deletions(-)

diff --git a/arch/ia64/kernel/elfcore.c b/arch/ia64/kernel/elfcore.c
index bac1639bc320..798ce543da4b 100644
--- a/arch/ia64/kernel/elfcore.c
+++ b/arch/ia64/kernel/elfcore.c
@@ -11,8 +11,7 @@ Elf64_Half elf_core_extra_phdrs(void)
 	return GATE_EHDR->e_phnum;
 }
 
-int elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size,
-			       unsigned long limit)
+int elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset)
 {
 	const struct elf_phdr *const gate_phdrs =
 		(const struct elf_phdr *) (GATE_ADDR + GATE_EHDR->e_phoff);
@@ -35,8 +34,7 @@ int elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size,
 			phdr.p_offset += ofs;
 		}
 		phdr.p_paddr = 0; /* match other core phdrs */
-		*size += sizeof(phdr);
-		if (*size > limit || !dump_write(file, &phdr, sizeof(phdr)))
+		if (!dump_emit(cprm, &phdr, sizeof(phdr)))
 			return 0;
 	}
 	return 1;
diff --git a/arch/x86/um/elfcore.c b/arch/x86/um/elfcore.c
index 6bb49b687c97..fc21f98efafe 100644
--- a/arch/x86/um/elfcore.c
+++ b/arch/x86/um/elfcore.c
@@ -11,8 +11,7 @@ Elf32_Half elf_core_extra_phdrs(void)
 	return vsyscall_ehdr ? (((struct elfhdr *)vsyscall_ehdr)->e_phnum) : 0;
 }
 
-int elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size,
-			       unsigned long limit)
+int elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset)
 {
 	if ( vsyscall_ehdr ) {
 		const struct elfhdr *const ehdrp =
@@ -32,9 +31,7 @@ int elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size,
 				phdr.p_offset += ofs;
 			}
 			phdr.p_paddr = 0; /* match other core phdrs */
-			*size += sizeof(phdr);
-			if (*size > limit
-			    || !dump_write(file, &phdr, sizeof(phdr)))
+			if (!dump_emit(cprm, &phdr, sizeof(phdr)))
 				return 0;
 		}
 	}
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 00fd9c969a27..35c4886dae2d 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -2152,11 +2152,11 @@ static int elf_core_dump(struct coredump_params *cprm)
 		if (!dump_emit(cprm, &phdr, sizeof(phdr)))
 			goto end_coredump;
 	}
-	size = cprm->written;
 
-	if (!elf_core_write_extra_phdrs(cprm->file, offset, &size, cprm->limit))
+	if (!elf_core_write_extra_phdrs(cprm, offset))
 		goto end_coredump;
 
+	size = cprm->written;
 	cprm->written = foffset;	/* will disappear */
  	/* write out the notes section */
 	if (!write_note_info(&info, cprm))
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index ea4c6273b4a5..44db8b92121a 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -1791,9 +1791,11 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
 			goto end_coredump;
 	}
 
-	if (!elf_core_write_extra_phdrs(cprm->file, offset, &size, cprm->limit))
+	cprm->written = size;
+	if (!elf_core_write_extra_phdrs(cprm, offset))
 		goto end_coredump;
 
+	size = cprm->written;
  	/* write out the notes section */
 	for (i = 0; i < numnote; i++)
 		if (!writenote(notes + i, cprm->file, &foffset))
diff --git a/include/linux/elfcore.h b/include/linux/elfcore.h
index cdd3d13efce7..1b92a8c40624 100644
--- a/include/linux/elfcore.h
+++ b/include/linux/elfcore.h
@@ -6,6 +6,8 @@
 #include <asm/elf.h>
 #include <uapi/linux/elfcore.h>
 
+struct coredump_params;
+
 static inline void elf_core_copy_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
 {
 #ifdef ELF_CORE_COPY_REGS
@@ -63,8 +65,7 @@ static inline int elf_core_copy_task_xfpregs(struct task_struct *t, elf_fpxregse
  */
 extern Elf_Half elf_core_extra_phdrs(void);
 extern int
-elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size,
-			   unsigned long limit);
+elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset);
 extern int
 elf_core_write_extra_data(struct file *file, size_t *size, unsigned long limit);
 extern size_t elf_core_extra_data_size(void);
diff --git a/kernel/elfcore.c b/kernel/elfcore.c
index ff915efef66d..e556751d15d9 100644
--- a/kernel/elfcore.c
+++ b/kernel/elfcore.c
@@ -1,23 +1,19 @@
 #include <linux/elf.h>
 #include <linux/fs.h>
 #include <linux/mm.h>
-
-#include <asm/elf.h>
-
+#include <linux/binfmts.h>
 
 Elf_Half __weak elf_core_extra_phdrs(void)
 {
 	return 0;
 }
 
-int __weak elf_core_write_extra_phdrs(struct file *file, loff_t offset, size_t *size,
-				      unsigned long limit)
+int __weak elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset)
 {
 	return 1;
 }
 
-int __weak elf_core_write_extra_data(struct file *file, size_t *size,
-				     unsigned long limit)
+int __weak elf_core_write_extra_data(struct coredump_params *cprm)
 {
 	return 1;
 }
-- 
cgit 


From aa3e7eaf0a0f06edd2b733e84e7e8ffe108e8786 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 5 Oct 2013 17:50:15 -0400
Subject: switch elf_core_write_extra_data() to dump_emit()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/ia64/kernel/elfcore.c | 6 ++----
 arch/x86/um/elfcore.c      | 8 ++------
 fs/binfmt_elf.c            | 4 +++-
 fs/binfmt_elf_fdpic.c      | 4 +++-
 include/linux/elfcore.h    | 2 +-
 5 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/arch/ia64/kernel/elfcore.c b/arch/ia64/kernel/elfcore.c
index 798ce543da4b..04bc8fd5f893 100644
--- a/arch/ia64/kernel/elfcore.c
+++ b/arch/ia64/kernel/elfcore.c
@@ -40,8 +40,7 @@ int elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset)
 	return 1;
 }
 
-int elf_core_write_extra_data(struct file *file, size_t *size,
-			      unsigned long limit)
+int elf_core_write_extra_data(struct coredump_params *cprm)
 {
 	const struct elf_phdr *const gate_phdrs =
 		(const struct elf_phdr *) (GATE_ADDR + GATE_EHDR->e_phoff);
@@ -52,8 +51,7 @@ int elf_core_write_extra_data(struct file *file, size_t *size,
 			void *addr = (void *)gate_phdrs[i].p_vaddr;
 			size_t memsz = PAGE_ALIGN(gate_phdrs[i].p_memsz);
 
-			*size += memsz;
-			if (*size > limit || !dump_write(file, addr, memsz))
+			if (!dump_emit(cprm, addr, memsz))
 				return 0;
 			break;
 		}
diff --git a/arch/x86/um/elfcore.c b/arch/x86/um/elfcore.c
index fc21f98efafe..7bb89a27a5e4 100644
--- a/arch/x86/um/elfcore.c
+++ b/arch/x86/um/elfcore.c
@@ -38,8 +38,7 @@ int elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset)
 	return 1;
 }
 
-int elf_core_write_extra_data(struct file *file, size_t *size,
-			      unsigned long limit)
+int elf_core_write_extra_data(struct coredump_params *cprm)
 {
 	if ( vsyscall_ehdr ) {
 		const struct elfhdr *const ehdrp =
@@ -52,10 +51,7 @@ int elf_core_write_extra_data(struct file *file, size_t *size,
 			if (phdrp[i].p_type == PT_LOAD) {
 				void *addr = (void *) phdrp[i].p_vaddr;
 				size_t filesz = phdrp[i].p_filesz;
-
-				*size += filesz;
-				if (*size > limit
-				    || !dump_write(file, addr, filesz))
+				if (!dump_emit(cprm, addr, filesz))
 					return 0;
 			}
 		}
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 35c4886dae2d..a998b221b53a 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -2196,8 +2196,10 @@ static int elf_core_dump(struct coredump_params *cprm)
 		}
 	}
 
-	if (!elf_core_write_extra_data(cprm->file, &size, cprm->limit))
+	cprm->written = size;
+	if (!elf_core_write_extra_data(cprm))
 		goto end_coredump;
+	size = cprm->written;
 
 	if (e_phnum == PN_XNUM) {
 		size += sizeof(*shdr4extnum);
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 44db8b92121a..77bf7e33e706 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -1818,8 +1818,10 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
 				    cprm->mm_flags) < 0)
 		goto end_coredump;
 
-	if (!elf_core_write_extra_data(cprm->file, &size, cprm->limit))
+	cprm->written = size;
+	if (!elf_core_write_extra_data(cprm))
 		goto end_coredump;
+	size = cprm->written;
 
 	if (e_phnum == PN_XNUM) {
 		size += sizeof(*shdr4extnum);
diff --git a/include/linux/elfcore.h b/include/linux/elfcore.h
index 1b92a8c40624..698d51a0eea3 100644
--- a/include/linux/elfcore.h
+++ b/include/linux/elfcore.h
@@ -67,7 +67,7 @@ extern Elf_Half elf_core_extra_phdrs(void);
 extern int
 elf_core_write_extra_phdrs(struct coredump_params *cprm, loff_t offset);
 extern int
-elf_core_write_extra_data(struct file *file, size_t *size, unsigned long limit);
+elf_core_write_extra_data(struct coredump_params *cprm);
 extern size_t elf_core_extra_data_size(void);
 
 #endif /* _LINUX_ELFCORE_H */
-- 
cgit 


From 13046ece9625f96fafb0cff0b9b95a586b53b553 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 5 Oct 2013 18:08:47 -0400
Subject: binfmt_elf: convert writing actual dump pages to dump_emit()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/binfmt_elf.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index a998b221b53a..ddab40d3d828 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -2093,7 +2093,6 @@ static int elf_core_dump(struct coredump_params *cprm)
 
 	offset += sizeof(*elf);				/* Elf header */
 	offset += segs * sizeof(struct elf_phdr);	/* Program headers */
-	foffset = offset;
 
 	/* Write notes phdr entry */
 	{
@@ -2157,7 +2156,6 @@ static int elf_core_dump(struct coredump_params *cprm)
 		goto end_coredump;
 
 	size = cprm->written;
-	cprm->written = foffset;	/* will disappear */
  	/* write out the notes section */
 	if (!write_note_info(&info, cprm))
 		goto end_coredump;
@@ -2170,6 +2168,7 @@ static int elf_core_dump(struct coredump_params *cprm)
 	if (!dump_seek(cprm->file, dataoff - foffset))
 		goto end_coredump;
 
+	cprm->written = size;
 	for (vma = first_vma(current, gate_vma); vma != NULL;
 			vma = next_vma(vma, gate_vma)) {
 		unsigned long addr;
@@ -2184,9 +2183,7 @@ static int elf_core_dump(struct coredump_params *cprm)
 			page = get_dump_page(addr);
 			if (page) {
 				void *kaddr = kmap(page);
-				stop = ((size += PAGE_SIZE) > cprm->limit) ||
-					!dump_write(cprm->file, kaddr,
-						    PAGE_SIZE);
+				stop = !dump_emit(cprm, kaddr, PAGE_SIZE);
 				kunmap(page);
 				page_cache_release(page);
 			} else
@@ -2196,16 +2193,11 @@ static int elf_core_dump(struct coredump_params *cprm)
 		}
 	}
 
-	cprm->written = size;
 	if (!elf_core_write_extra_data(cprm))
 		goto end_coredump;
-	size = cprm->written;
 
 	if (e_phnum == PN_XNUM) {
-		size += sizeof(*shdr4extnum);
-		if (size > cprm->limit
-		    || !dump_write(cprm->file, shdr4extnum,
-				   sizeof(*shdr4extnum)))
+		if (!dump_emit(cprm, shdr4extnum, sizeof(*shdr4extnum)))
 			goto end_coredump;
 	}
 
-- 
cgit 


From e6c1baa9b562ca296d57178c44f3894795d13d32 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 5 Oct 2013 18:58:47 -0400
Subject: convert the rest of binfmt_elf_fdpic to dump_emit()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/binfmt_elf_fdpic.c | 110 ++++++++++++++------------------------------------
 1 file changed, 31 insertions(+), 79 deletions(-)

diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 77bf7e33e706..70e299917898 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -1267,35 +1267,23 @@ static int notesize(struct memelfnote *en)
 
 /* #define DEBUG */
 
-#define DUMP_WRITE(addr, nr, foffset)	\
-	do { if (!dump_write(file, (addr), (nr))) return 0; *foffset += (nr); } while(0)
-
-static int alignfile(struct file *file, loff_t *foffset)
+static int alignfile(struct coredump_params *cprm)
 {
 	static const char buf[4] = { 0, };
-	DUMP_WRITE(buf, roundup(*foffset, 4) - *foffset, foffset);
-	return 1;
+	return dump_emit(cprm, buf, roundup(cprm->written, 4) - cprm->written);
 }
 
-static int writenote(struct memelfnote *men, struct file *file,
-			loff_t *foffset)
+static int writenote(struct memelfnote *men, struct coredump_params *cprm)
 {
 	struct elf_note en;
 	en.n_namesz = strlen(men->name) + 1;
 	en.n_descsz = men->datasz;
 	en.n_type = men->type;
 
-	DUMP_WRITE(&en, sizeof(en), foffset);
-	DUMP_WRITE(men->name, en.n_namesz, foffset);
-	if (!alignfile(file, foffset))
-		return 0;
-	DUMP_WRITE(men->data, men->datasz, foffset);
-	if (!alignfile(file, foffset))
-		return 0;
-
-	return 1;
+	return dump_emit(cprm, &en, sizeof(en)) &&
+		dump_emit(cprm, men->name, en.n_namesz) && alignfile(cprm) &&
+		dump_emit(cprm, men->data, men->datasz) && alignfile(cprm);
 }
-#undef DUMP_WRITE
 
 static inline void fill_elf_fdpic_header(struct elfhdr *elf, int segs)
 {
@@ -1500,66 +1488,40 @@ static void fill_extnum_info(struct elfhdr *elf, struct elf_shdr *shdr4extnum,
 /*
  * dump the segments for an MMU process
  */
-#ifdef CONFIG_MMU
-static int elf_fdpic_dump_segments(struct file *file, size_t *size,
-			   unsigned long *limit, unsigned long mm_flags)
+static bool elf_fdpic_dump_segments(struct coredump_params *cprm)
 {
 	struct vm_area_struct *vma;
-	int err = 0;
 
 	for (vma = current->mm->mmap; vma; vma = vma->vm_next) {
 		unsigned long addr;
 
-		if (!maydump(vma, mm_flags))
+		if (!maydump(vma, cprm->mm_flags))
 			continue;
 
+#ifdef CONFIG_MMU
 		for (addr = vma->vm_start; addr < vma->vm_end;
 							addr += PAGE_SIZE) {
+			bool res;
 			struct page *page = get_dump_page(addr);
 			if (page) {
 				void *kaddr = kmap(page);
-				*size += PAGE_SIZE;
-				if (*size > *limit)
-					err = -EFBIG;
-				else if (!dump_write(file, kaddr, PAGE_SIZE))
-					err = -EIO;
+				res = dump_emit(cprm, kaddr, PAGE_SIZE);
 				kunmap(page);
 				page_cache_release(page);
-			} else if (!dump_seek(file, PAGE_SIZE))
-				err = -EFBIG;
-			if (err)
-				goto out;
+			} else {
+				res = dump_seek(file, PAGE_SIZE);
+			}
+			if (!res)
+				return false;
 		}
-	}
-out:
-	return err;
-}
-#endif
-
-/*
- * dump the segments for a NOMMU process
- */
-#ifndef CONFIG_MMU
-static int elf_fdpic_dump_segments(struct file *file, size_t *size,
-			   unsigned long *limit, unsigned long mm_flags)
-{
-	struct vm_area_struct *vma;
-
-	for (vma = current->mm->mmap; vma; vma = vma->vm_next) {
-		if (!maydump(vma, mm_flags))
-			continue;
-
-		if ((*size += PAGE_SIZE) > *limit)
-			return -EFBIG;
-
-		if (!dump_write(file, (void *) vma->vm_start,
+#else
+		if (!dump_emit(cprm, (void *) vma->vm_start,
 				vma->vm_end - vma->vm_start))
-			return -EIO;
+			return false;
+#endif
 	}
-
-	return 0;
+	return true;
 }
-#endif
 
 static size_t elf_core_vma_data_size(unsigned long mm_flags)
 {
@@ -1755,13 +1717,10 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
 
 	offset = dataoff;
 
-	size += sizeof(*elf);
-	if (size > cprm->limit || !dump_write(cprm->file, elf, sizeof(*elf)))
+	if (!dump_emit(cprm, elf, sizeof(*elf)))
 		goto end_coredump;
 
-	size += sizeof(*phdr4note);
-	if (size > cprm->limit
-	    || !dump_write(cprm->file, phdr4note, sizeof(*phdr4note)))
+	if (!dump_emit(cprm, phdr4note, sizeof(*phdr4note)))
 		goto end_coredump;
 
 	/* write program headers for segments dump */
@@ -1785,20 +1744,18 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
 			phdr.p_flags |= PF_X;
 		phdr.p_align = ELF_EXEC_PAGESIZE;
 
-		size += sizeof(phdr);
-		if (size > cprm->limit
-		    || !dump_write(cprm->file, &phdr, sizeof(phdr)))
+		if (!dump_emit(cprm, &phdr, sizeof(phdr)))
 			goto end_coredump;
 	}
 
-	cprm->written = size;
 	if (!elf_core_write_extra_phdrs(cprm, offset))
 		goto end_coredump;
 
 	size = cprm->written;
+	cprm->written = foffset;
  	/* write out the notes section */
 	for (i = 0; i < numnote; i++)
-		if (!writenote(notes + i, cprm->file, &foffset))
+		if (!writenote(notes + i, cprm))
 			goto end_coredump;
 
 	/* write out the thread status notes section */
@@ -1807,27 +1764,22 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
 				list_entry(t, struct elf_thread_status, list);
 
 		for (i = 0; i < tmp->num_notes; i++)
-			if (!writenote(&tmp->notes[i], cprm->file, &foffset))
+			if (!writenote(&tmp->notes[i], cprm))
 				goto end_coredump;
 	}
 
-	if (!dump_seek(cprm->file, dataoff - foffset))
+	if (!dump_seek(cprm->file, dataoff - cprm->written))
 		goto end_coredump;
 
-	if (elf_fdpic_dump_segments(cprm->file, &size, &cprm->limit,
-				    cprm->mm_flags) < 0)
+	cprm->written = size;
+	if (!elf_fdpic_dump_segments(cprm))
 		goto end_coredump;
 
-	cprm->written = size;
 	if (!elf_core_write_extra_data(cprm))
 		goto end_coredump;
-	size = cprm->written;
 
 	if (e_phnum == PN_XNUM) {
-		size += sizeof(*shdr4extnum);
-		if (size > cprm->limit
-		    || !dump_write(cprm->file, shdr4extnum,
-				   sizeof(*shdr4extnum)))
+		if (!dump_emit(cprm, shdr4extnum, sizeof(*shdr4extnum)))
 			goto end_coredump;
 	}
 
-- 
cgit 


From cdc3d5627d5f7c4e6b6372b9fb39cba0fe6a9b2a Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 5 Oct 2013 22:24:29 -0400
Subject: switch elf_coredump_extra_notes_write() to dump_emit()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/powerpc/include/asm/spu.h               |  3 +-
 arch/powerpc/platforms/cell/spu_syscalls.c   |  5 ++--
 arch/powerpc/platforms/cell/spufs/coredump.c | 44 +++++++++++-----------------
 arch/powerpc/platforms/cell/spufs/spufs.h    |  3 +-
 fs/binfmt_elf.c                              |  7 ++---
 include/linux/elf.h                          |  6 ++--
 6 files changed, 30 insertions(+), 38 deletions(-)

diff --git a/arch/powerpc/include/asm/spu.h b/arch/powerpc/include/asm/spu.h
index 93f280e23279..37b7ca39ec9f 100644
--- a/arch/powerpc/include/asm/spu.h
+++ b/arch/powerpc/include/asm/spu.h
@@ -235,6 +235,7 @@ extern long spu_sys_callback(struct spu_syscall_block *s);
 
 /* syscalls implemented in spufs */
 struct file;
+struct coredump_params;
 struct spufs_calls {
 	long (*create_thread)(const char __user *name,
 					unsigned int flags, umode_t mode,
@@ -242,7 +243,7 @@ struct spufs_calls {
 	long (*spu_run)(struct file *filp, __u32 __user *unpc,
 						__u32 __user *ustatus);
 	int (*coredump_extra_notes_size)(void);
-	int (*coredump_extra_notes_write)(struct file *file, loff_t *foffset);
+	int (*coredump_extra_notes_write)(struct coredump_params *cprm);
 	void (*notify_spus_active)(void);
 	struct module *owner;
 };
diff --git a/arch/powerpc/platforms/cell/spu_syscalls.c b/arch/powerpc/platforms/cell/spu_syscalls.c
index db4e638cf408..3844f1397fc3 100644
--- a/arch/powerpc/platforms/cell/spu_syscalls.c
+++ b/arch/powerpc/platforms/cell/spu_syscalls.c
@@ -25,6 +25,7 @@
 #include <linux/module.h>
 #include <linux/syscalls.h>
 #include <linux/rcupdate.h>
+#include <linux/binfmts.h>
 
 #include <asm/spu.h>
 
@@ -126,7 +127,7 @@ int elf_coredump_extra_notes_size(void)
 	return ret;
 }
 
-int elf_coredump_extra_notes_write(struct file *file, loff_t *foffset)
+int elf_coredump_extra_notes_write(struct coredump_params *cprm)
 {
 	struct spufs_calls *calls;
 	int ret;
@@ -135,7 +136,7 @@ int elf_coredump_extra_notes_write(struct file *file, loff_t *foffset)
 	if (!calls)
 		return 0;
 
-	ret = calls->coredump_extra_notes_write(file, foffset);
+	ret = calls->coredump_extra_notes_write(cprm);
 
 	spufs_calls_put(calls);
 
diff --git a/arch/powerpc/platforms/cell/spufs/coredump.c b/arch/powerpc/platforms/cell/spufs/coredump.c
index c9500ea7be2f..5d9b0a288f36 100644
--- a/arch/powerpc/platforms/cell/spufs/coredump.c
+++ b/arch/powerpc/platforms/cell/spufs/coredump.c
@@ -27,6 +27,8 @@
 #include <linux/gfp.h>
 #include <linux/list.h>
 #include <linux/syscalls.h>
+#include <linux/coredump.h>
+#include <linux/binfmts.h>
 
 #include <asm/uaccess.h>
 
@@ -52,35 +54,24 @@ static ssize_t do_coredump_read(int num, struct spu_context *ctx, void *buffer,
  * These are the only things you should do on a core-file: use only these
  * functions to write out all the necessary info.
  */
-static int spufs_dump_write(struct file *file, const void *addr, int nr, loff_t *foffset)
+static int spufs_dump_write(struct coredump_params *cprm, const void *addr, int nr)
 {
-	unsigned long limit = rlimit(RLIMIT_CORE);
-	ssize_t written;
-
-	if (*foffset + nr > limit)
+	if (!dump_emit(cprm, addr, nr))
 		return -EIO;
-
-	written = file->f_op->write(file, addr, nr, &file->f_pos);
-	*foffset += written;
-
-	if (written != nr)
-		return -EIO;
-
 	return 0;
 }
 
-static int spufs_dump_align(struct file *file, char *buf, loff_t new_off,
-			    loff_t *foffset)
+static int spufs_dump_align(struct coredump_params *cprm, char *buf, loff_t new_off)
 {
 	int rc, size;
 
-	size = min((loff_t)PAGE_SIZE, new_off - *foffset);
+	size = min((loff_t)PAGE_SIZE, new_off - cprm->written);
 	memset(buf, 0, size);
 
 	rc = 0;
-	while (rc == 0 && new_off > *foffset) {
-		size = min((loff_t)PAGE_SIZE, new_off - *foffset);
-		rc = spufs_dump_write(file, buf, size, foffset);
+	while (rc == 0 && new_off > cprm->written) {
+		size = min((loff_t)PAGE_SIZE, new_off - cprm->written);
+		rc = spufs_dump_write(cprm, buf, size);
 	}
 
 	return rc;
@@ -165,7 +156,7 @@ int spufs_coredump_extra_notes_size(void)
 }
 
 static int spufs_arch_write_note(struct spu_context *ctx, int i,
-				  struct file *file, int dfd, loff_t *foffset)
+				  struct coredump_params *cprm, int dfd)
 {
 	loff_t pos = 0;
 	int sz, rc, nread, total = 0;
@@ -186,22 +177,22 @@ static int spufs_arch_write_note(struct spu_context *ctx, int i,
 	en.n_descsz = sz;
 	en.n_type = NT_SPU;
 
-	rc = spufs_dump_write(file, &en, sizeof(en), foffset);
+	rc = spufs_dump_write(cprm, &en, sizeof(en));
 	if (rc)
 		goto out;
 
-	rc = spufs_dump_write(file, fullname, en.n_namesz, foffset);
+	rc = spufs_dump_write(cprm, fullname, en.n_namesz);
 	if (rc)
 		goto out;
 
-	rc = spufs_dump_align(file, buf, roundup(*foffset, 4), foffset);
+	rc = spufs_dump_align(cprm, buf, roundup(cprm->written, 4));
 	if (rc)
 		goto out;
 
 	do {
 		nread = do_coredump_read(i, ctx, buf, bufsz, &pos);
 		if (nread > 0) {
-			rc = spufs_dump_write(file, buf, nread, foffset);
+			rc = spufs_dump_write(cprm, buf, nread);
 			if (rc)
 				goto out;
 			total += nread;
@@ -213,15 +204,14 @@ static int spufs_arch_write_note(struct spu_context *ctx, int i,
 		goto out;
 	}
 
-	rc = spufs_dump_align(file, buf, roundup(*foffset - total + sz, 4),
-			      foffset);
+	rc = spufs_dump_align(cprm, buf, roundup(cprm->written - total + sz, 4));
 
 out:
 	free_page((unsigned long)buf);
 	return rc;
 }
 
-int spufs_coredump_extra_notes_write(struct file *file, loff_t *foffset)
+int spufs_coredump_extra_notes_write(struct coredump_params *cprm)
 {
 	struct spu_context *ctx;
 	int fd, j, rc;
@@ -233,7 +223,7 @@ int spufs_coredump_extra_notes_write(struct file *file, loff_t *foffset)
 			return rc;
 
 		for (j = 0; spufs_coredump_read[j].name != NULL; j++) {
-			rc = spufs_arch_write_note(ctx, j, file, fd, foffset);
+			rc = spufs_arch_write_note(ctx, j, cprm, fd);
 			if (rc) {
 				spu_release_saved(ctx);
 				return rc;
diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h
index 67852ade4c01..0ba3c9598358 100644
--- a/arch/powerpc/platforms/cell/spufs/spufs.h
+++ b/arch/powerpc/platforms/cell/spufs/spufs.h
@@ -247,12 +247,13 @@ extern const struct spufs_tree_descr spufs_dir_debug_contents[];
 
 /* system call implementation */
 extern struct spufs_calls spufs_calls;
+struct coredump_params;
 long spufs_run_spu(struct spu_context *ctx, u32 *npc, u32 *status);
 long spufs_create(struct path *nd, struct dentry *dentry, unsigned int flags,
 			umode_t mode, struct file *filp);
 /* ELF coredump callbacks for writing SPU ELF notes */
 extern int spufs_coredump_extra_notes_size(void);
-extern int spufs_coredump_extra_notes_write(struct file *file, loff_t *foffset);
+extern int spufs_coredump_extra_notes_write(struct coredump_params *cprm);
 
 extern const struct file_operations spufs_context_fops;
 
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index ddab40d3d828..3bf75d767a4a 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -2037,7 +2037,7 @@ static int elf_core_dump(struct coredump_params *cprm)
 	size_t size = 0;
 	struct vm_area_struct *vma, *gate_vma;
 	struct elfhdr *elf = NULL;
-	loff_t offset = 0, dataoff, foffset;
+	loff_t offset = 0, dataoff;
 	struct elf_note_info info = { };
 	struct elf_phdr *phdr4note = NULL;
 	struct elf_shdr *shdr4extnum = NULL;
@@ -2160,12 +2160,11 @@ static int elf_core_dump(struct coredump_params *cprm)
 	if (!write_note_info(&info, cprm))
 		goto end_coredump;
 
-	foffset = cprm->written;
-	if (elf_coredump_extra_notes_write(cprm->file, &foffset))
+	if (elf_coredump_extra_notes_write(cprm))
 		goto end_coredump;
 
 	/* Align to page */
-	if (!dump_seek(cprm->file, dataoff - foffset))
+	if (!dump_seek(cprm->file, dataoff - cprm->written))
 		goto end_coredump;
 
 	cprm->written = size;
diff --git a/include/linux/elf.h b/include/linux/elf.h
index 40a3c0e01b2b..67a5fa7830c4 100644
--- a/include/linux/elf.h
+++ b/include/linux/elf.h
@@ -39,13 +39,13 @@ extern Elf64_Dyn _DYNAMIC [];
 
 /* Optional callbacks to write extra ELF notes. */
 struct file;
+struct coredump_params;
 
 #ifndef ARCH_HAVE_EXTRA_ELF_NOTES
 static inline int elf_coredump_extra_notes_size(void) { return 0; }
-static inline int elf_coredump_extra_notes_write(struct file *file,
-			loff_t *foffset) { return 0; }
+static inline int elf_coredump_extra_notes_write(struct coredump_params *cprm) { return 0; }
 #else
 extern int elf_coredump_extra_notes_size(void);
-extern int elf_coredump_extra_notes_write(struct file *file, loff_t *foffset);
+extern int elf_coredump_extra_notes_write(struct coredump_params *cprm);
 #endif
 #endif /* _LINUX_ELF_H */
-- 
cgit 


From 43a5d548eb5949580c1d96b9f3fa9f4c0bee0b98 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 7 Oct 2013 07:22:01 -0400
Subject: aout: switch to dump_emit

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/x86/ia32/ia32_aout.c | 20 ++++++++------------
 fs/binfmt_aout.c          |  7 +++----
 2 files changed, 11 insertions(+), 16 deletions(-)

diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index 80361c00fb64..9e26e9e85576 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -133,14 +133,6 @@ static void set_brk(unsigned long start, unsigned long end)
 
 #include <linux/coredump.h>
 
-#define DUMP_WRITE(addr, nr)			     \
-	if (!dump_write(cprm->file, (void *)(addr), (nr))) \
-		goto end_coredump;
-
-#define DUMP_SEEK(offset)		\
-	if (!dump_seek(cprm->file, offset))	\
-		goto end_coredump;
-
 #define START_DATA(u)	(u.u_tsize << PAGE_SHIFT)
 #define START_STACK(u)	(u.start_stack)
 
@@ -192,22 +184,26 @@ static int aout_core_dump(struct coredump_params *cprm)
 
 	set_fs(KERNEL_DS);
 	/* struct user */
-	DUMP_WRITE(&dump, sizeof(dump));
+	if (!dump_emit(cprm, &dump, sizeof(dump)))
+		goto end_coredump;
 	/* Now dump all of the user data.  Include malloced stuff as well */
-	DUMP_SEEK(PAGE_SIZE - sizeof(dump));
+	if (!dump_seek(cprm->file, PAGE_SIZE - sizeof(dump)))
+		goto end_coredump;
 	/* now we start writing out the user space info */
 	set_fs(USER_DS);
 	/* Dump the data area */
 	if (dump.u_dsize != 0) {
 		dump_start = START_DATA(dump);
 		dump_size = dump.u_dsize << PAGE_SHIFT;
-		DUMP_WRITE(dump_start, dump_size);
+		if (!dump_emit(cprm, (void *)dump_start, dump_size))
+			goto end_coredump;
 	}
 	/* Now prepare to dump the stack area */
 	if (dump.u_ssize != 0) {
 		dump_start = START_STACK(dump);
 		dump_size = dump.u_ssize << PAGE_SHIFT;
-		DUMP_WRITE(dump_start, dump_size);
+		if (!dump_emit(cprm, (void *)dump_start, dump_size))
+			goto end_coredump;
 	}
 end_coredump:
 	set_fs(fs);
diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index faaa819f70fa..a4f847f77234 100644
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -45,7 +45,6 @@ static int load_aout_library(struct file*);
  */
 static int aout_core_dump(struct coredump_params *cprm)
 {
-	struct file *file = cprm->file;
 	mm_segment_t fs;
 	int has_dumped = 0;
 	void __user *dump_start;
@@ -85,7 +84,7 @@ static int aout_core_dump(struct coredump_params *cprm)
 
 	set_fs(KERNEL_DS);
 /* struct user */
-	if (!dump_write(file, &dump, sizeof(dump)))
+	if (!dump_emit(cprm, &dump, sizeof(dump)))
 		goto end_coredump;
 /* Now dump all of the user data.  Include malloced stuff as well */
 	if (!dump_seek(cprm->file, PAGE_SIZE - sizeof(dump)))
@@ -96,14 +95,14 @@ static int aout_core_dump(struct coredump_params *cprm)
 	if (dump.u_dsize != 0) {
 		dump_start = START_DATA(dump);
 		dump_size = dump.u_dsize << PAGE_SHIFT;
-		if (!dump_write(file, dump_start, dump_size))
+		if (!dump_emit(cprm, dump_start, dump_size))
 			goto end_coredump;
 	}
 /* Now prepare to dump the stack area */
 	if (dump.u_ssize != 0) {
 		dump_start = START_STACK(dump);
 		dump_size = dump.u_ssize << PAGE_SHIFT;
-		if (!dump_write(file, dump_start, dump_size))
+		if (!dump_emit(cprm, dump_start, dump_size))
 			goto end_coredump;
 	}
 end_coredump:
-- 
cgit 


From 1ad67015e619ba4e0b15ed0482d464292fedf263 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 7 Oct 2013 07:23:45 -0400
Subject: binfmt_elf: count notes towards coredump limit

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/binfmt_elf.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 3bf75d767a4a..4f7dda9d86b5 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -2034,7 +2034,6 @@ static int elf_core_dump(struct coredump_params *cprm)
 	int has_dumped = 0;
 	mm_segment_t fs;
 	int segs;
-	size_t size = 0;
 	struct vm_area_struct *vma, *gate_vma;
 	struct elfhdr *elf = NULL;
 	loff_t offset = 0, dataoff;
@@ -2155,7 +2154,6 @@ static int elf_core_dump(struct coredump_params *cprm)
 	if (!elf_core_write_extra_phdrs(cprm, offset))
 		goto end_coredump;
 
-	size = cprm->written;
  	/* write out the notes section */
 	if (!write_note_info(&info, cprm))
 		goto end_coredump;
@@ -2167,7 +2165,6 @@ static int elf_core_dump(struct coredump_params *cprm)
 	if (!dump_seek(cprm->file, dataoff - cprm->written))
 		goto end_coredump;
 
-	cprm->written = size;
 	for (vma = first_vma(current, gate_vma); vma != NULL;
 			vma = next_vma(vma, gate_vma)) {
 		unsigned long addr;
-- 
cgit 


From 2507a4fbd48a96bc4236e584252635f8539079df Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 8 Oct 2013 09:11:48 -0400
Subject: make dump_emit() use vfs_write() instead of banging at ->f_op->write
 directly

... and deal with short writes properly - the output might be to pipe, after
all; as it is, e.g. no-MMU case of elf_fdpic coredump can write a whole lot
more than a page worth of data at one call.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/coredump.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/fs/coredump.c b/fs/coredump.c
index 319f973bab72..2472ed9e682c 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -696,13 +696,20 @@ EXPORT_SYMBOL(dump_write);
 int dump_emit(struct coredump_params *cprm, const void *addr, int nr)
 {
 	struct file *file = cprm->file;
-	if (dump_interrupted() || !access_ok(VERIFY_READ, addr, nr))
-		return 0;
+	loff_t pos = file->f_pos;
+	ssize_t n;
 	if (cprm->written + nr > cprm->limit)
 		return 0;
-	if (file->f_op->write(file, addr, nr, &file->f_pos) != nr)
-		return 0;
-	cprm->written += nr;
+	while (nr) {
+		if (dump_interrupted())
+			return 0;
+		n = vfs_write(file, addr, nr, &pos);
+		if (n <= 0)
+			return 0;
+		file->f_pos = pos;
+		cprm->written += n;
+		nr -= n;
+	}
 	return 1;
 }
 EXPORT_SYMBOL(dump_emit);
-- 
cgit 


From 9b56d54380adb5fef71f687109bbd6f8413d694f Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 8 Oct 2013 09:26:08 -0400
Subject: dump_skip(): dump_seek() replacement taking coredump_params

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/x86/ia32/ia32_aout.c |  2 +-
 fs/binfmt_aout.c          |  2 +-
 fs/binfmt_elf.c           |  4 ++--
 fs/binfmt_elf_fdpic.c     | 11 +++--------
 fs/coredump.c             | 43 ++++++++++++++-----------------------------
 include/linux/coredump.h  |  3 +--
 6 files changed, 22 insertions(+), 43 deletions(-)

diff --git a/arch/x86/ia32/ia32_aout.c b/arch/x86/ia32/ia32_aout.c
index 9e26e9e85576..d21ff89207cd 100644
--- a/arch/x86/ia32/ia32_aout.c
+++ b/arch/x86/ia32/ia32_aout.c
@@ -187,7 +187,7 @@ static int aout_core_dump(struct coredump_params *cprm)
 	if (!dump_emit(cprm, &dump, sizeof(dump)))
 		goto end_coredump;
 	/* Now dump all of the user data.  Include malloced stuff as well */
-	if (!dump_seek(cprm->file, PAGE_SIZE - sizeof(dump)))
+	if (!dump_skip(cprm, PAGE_SIZE - sizeof(dump)))
 		goto end_coredump;
 	/* now we start writing out the user space info */
 	set_fs(USER_DS);
diff --git a/fs/binfmt_aout.c b/fs/binfmt_aout.c
index a4f847f77234..ca0ba15a7306 100644
--- a/fs/binfmt_aout.c
+++ b/fs/binfmt_aout.c
@@ -87,7 +87,7 @@ static int aout_core_dump(struct coredump_params *cprm)
 	if (!dump_emit(cprm, &dump, sizeof(dump)))
 		goto end_coredump;
 /* Now dump all of the user data.  Include malloced stuff as well */
-	if (!dump_seek(cprm->file, PAGE_SIZE - sizeof(dump)))
+	if (!dump_skip(cprm, PAGE_SIZE - sizeof(dump)))
 		goto end_coredump;
 /* now we start writing out the user space info */
 	set_fs(USER_DS);
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 4f7dda9d86b5..c56ae3264a65 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -2162,7 +2162,7 @@ static int elf_core_dump(struct coredump_params *cprm)
 		goto end_coredump;
 
 	/* Align to page */
-	if (!dump_seek(cprm->file, dataoff - cprm->written))
+	if (!dump_skip(cprm, dataoff - cprm->written))
 		goto end_coredump;
 
 	for (vma = first_vma(current, gate_vma); vma != NULL;
@@ -2183,7 +2183,7 @@ static int elf_core_dump(struct coredump_params *cprm)
 				kunmap(page);
 				page_cache_release(page);
 			} else
-				stop = !dump_seek(cprm->file, PAGE_SIZE);
+				stop = !dump_skip(cprm, PAGE_SIZE);
 			if (stop)
 				goto end_coredump;
 		}
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 70e299917898..a69fc4ae1c85 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -1509,7 +1509,7 @@ static bool elf_fdpic_dump_segments(struct coredump_params *cprm)
 				kunmap(page);
 				page_cache_release(page);
 			} else {
-				res = dump_seek(file, PAGE_SIZE);
+				res = dump_skip(cprm, PAGE_SIZE);
 			}
 			if (!res)
 				return false;
@@ -1547,11 +1547,10 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
 	int has_dumped = 0;
 	mm_segment_t fs;
 	int segs;
-	size_t size = 0;
 	int i;
 	struct vm_area_struct *vma;
 	struct elfhdr *elf = NULL;
-	loff_t offset = 0, dataoff, foffset;
+	loff_t offset = 0, dataoff;
 	int numnote;
 	struct memelfnote *notes = NULL;
 	struct elf_prstatus *prstatus = NULL;	/* NT_PRSTATUS */
@@ -1682,7 +1681,6 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
 
 	offset += sizeof(*elf);				/* Elf header */
 	offset += segs * sizeof(struct elf_phdr);	/* Program headers */
-	foffset = offset;
 
 	/* Write notes phdr entry */
 	{
@@ -1751,8 +1749,6 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
 	if (!elf_core_write_extra_phdrs(cprm, offset))
 		goto end_coredump;
 
-	size = cprm->written;
-	cprm->written = foffset;
  	/* write out the notes section */
 	for (i = 0; i < numnote; i++)
 		if (!writenote(notes + i, cprm))
@@ -1768,10 +1764,9 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
 				goto end_coredump;
 	}
 
-	if (!dump_seek(cprm->file, dataoff - cprm->written))
+	if (!dump_skip(cprm, dataoff - cprm->written))
 		goto end_coredump;
 
-	cprm->written = size;
 	if (!elf_fdpic_dump_segments(cprm))
 		goto end_coredump;
 
diff --git a/fs/coredump.c b/fs/coredump.c
index 2472ed9e682c..18baf2c009d4 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -685,14 +685,6 @@ fail:
  * do on a core-file: use only these functions to write out all the
  * necessary info.
  */
-int dump_write(struct file *file, const void *addr, int nr)
-{
-	return !dump_interrupted() &&
-		access_ok(VERIFY_READ, addr, nr) &&
-		file->f_op->write(file, addr, nr, &file->f_pos) == nr;
-}
-EXPORT_SYMBOL(dump_write);
-
 int dump_emit(struct coredump_params *cprm, const void *addr, int nr)
 {
 	struct file *file = cprm->file;
@@ -714,32 +706,25 @@ int dump_emit(struct coredump_params *cprm, const void *addr, int nr)
 }
 EXPORT_SYMBOL(dump_emit);
 
-int dump_seek(struct file *file, loff_t off)
+int dump_skip(struct coredump_params *cprm, size_t nr)
 {
-	int ret = 1;
-
+	static char zeroes[PAGE_SIZE];
+	struct file *file = cprm->file;
 	if (file->f_op->llseek && file->f_op->llseek != no_llseek) {
+		if (cprm->written + nr > cprm->limit)
+			return 0;
 		if (dump_interrupted() ||
-		    file->f_op->llseek(file, off, SEEK_CUR) < 0)
+		    file->f_op->llseek(file, nr, SEEK_CUR) < 0)
 			return 0;
+		cprm->written += nr;
+		return 1;
 	} else {
-		char *buf = (char *)get_zeroed_page(GFP_KERNEL);
-
-		if (!buf)
-			return 0;
-		while (off > 0) {
-			unsigned long n = off;
-
-			if (n > PAGE_SIZE)
-				n = PAGE_SIZE;
-			if (!dump_write(file, buf, n)) {
-				ret = 0;
-				break;
-			}
-			off -= n;
+		while (nr > PAGE_SIZE) {
+			if (!dump_emit(cprm, zeroes, PAGE_SIZE))
+				return 0;
+			nr -= PAGE_SIZE;
 		}
-		free_page((unsigned long)buf);
+		return dump_emit(cprm, zeroes, nr);
 	}
-	return ret;
 }
-EXPORT_SYMBOL(dump_seek);
+EXPORT_SYMBOL(dump_skip);
diff --git a/include/linux/coredump.h b/include/linux/coredump.h
index 2959376a9ad5..07a0af93f230 100644
--- a/include/linux/coredump.h
+++ b/include/linux/coredump.h
@@ -11,8 +11,7 @@
  * functions to write out all the necessary info.
  */
 struct coredump_params;
-extern int dump_write(struct file *file, const void *addr, int nr);
-extern int dump_seek(struct file *file, loff_t off);
+extern int dump_skip(struct coredump_params *cprm, size_t nr);
 extern int dump_emit(struct coredump_params *cprm, const void *addr, int nr);
 #ifdef CONFIG_COREDUMP
 extern void do_coredump(siginfo_t *siginfo);
-- 
cgit 


From 7b1f4020d0d16a17b9c48570bdb7b4ad99be3553 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 8 Oct 2013 09:44:29 -0400
Subject: spufs: get rid of dump_emit() wrappers

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/powerpc/platforms/cell/spufs/coredump.c | 69 ++++++++--------------------
 1 file changed, 20 insertions(+), 49 deletions(-)

diff --git a/arch/powerpc/platforms/cell/spufs/coredump.c b/arch/powerpc/platforms/cell/spufs/coredump.c
index 5d9b0a288f36..1aaaa586fa50 100644
--- a/arch/powerpc/platforms/cell/spufs/coredump.c
+++ b/arch/powerpc/platforms/cell/spufs/coredump.c
@@ -50,33 +50,6 @@ static ssize_t do_coredump_read(int num, struct spu_context *ctx, void *buffer,
 	return ++ret; /* count trailing NULL */
 }
 
-/*
- * These are the only things you should do on a core-file: use only these
- * functions to write out all the necessary info.
- */
-static int spufs_dump_write(struct coredump_params *cprm, const void *addr, int nr)
-{
-	if (!dump_emit(cprm, addr, nr))
-		return -EIO;
-	return 0;
-}
-
-static int spufs_dump_align(struct coredump_params *cprm, char *buf, loff_t new_off)
-{
-	int rc, size;
-
-	size = min((loff_t)PAGE_SIZE, new_off - cprm->written);
-	memset(buf, 0, size);
-
-	rc = 0;
-	while (rc == 0 && new_off > cprm->written) {
-		size = min((loff_t)PAGE_SIZE, new_off - cprm->written);
-		rc = spufs_dump_write(cprm, buf, size);
-	}
-
-	return rc;
-}
-
 static int spufs_ctx_note_size(struct spu_context *ctx, int dfd)
 {
 	int i, sz, total = 0;
@@ -159,7 +132,7 @@ static int spufs_arch_write_note(struct spu_context *ctx, int i,
 				  struct coredump_params *cprm, int dfd)
 {
 	loff_t pos = 0;
-	int sz, rc, nread, total = 0;
+	int sz, rc, total = 0;
 	const int bufsz = PAGE_SIZE;
 	char *name;
 	char fullname[80], *buf;
@@ -177,38 +150,36 @@ static int spufs_arch_write_note(struct spu_context *ctx, int i,
 	en.n_descsz = sz;
 	en.n_type = NT_SPU;
 
-	rc = spufs_dump_write(cprm, &en, sizeof(en));
-	if (rc)
-		goto out;
+	if (!dump_emit(cprm, &en, sizeof(en)))
+		goto Eio;
 
-	rc = spufs_dump_write(cprm, fullname, en.n_namesz);
-	if (rc)
-		goto out;
+	if (!dump_emit(cprm, fullname, en.n_namesz))
+		goto Eio;
 
-	rc = spufs_dump_align(cprm, buf, roundup(cprm->written, 4));
-	if (rc)
-		goto out;
+	if (!dump_skip(cprm, roundup(cprm->written, 4) - cprm->written))
+		goto Eio;
 
 	do {
-		nread = do_coredump_read(i, ctx, buf, bufsz, &pos);
-		if (nread > 0) {
-			rc = spufs_dump_write(cprm, buf, nread);
-			if (rc)
-				goto out;
-			total += nread;
+		rc = do_coredump_read(i, ctx, buf, bufsz, &pos);
+		if (rc > 0) {
+			if (!dump_emit(cprm, buf, rc))
+				goto Eio;
+			total += rc;
 		}
-	} while (nread == bufsz && total < sz);
+	} while (rc == bufsz && total < sz);
 
-	if (nread < 0) {
-		rc = nread;
+	if (rc < 0)
 		goto out;
-	}
-
-	rc = spufs_dump_align(cprm, buf, roundup(cprm->written - total + sz, 4));
 
+	if (!dump_skip(cprm,
+		       roundup(cprm->written - total + sz, 4) - cprm->written))
+		goto Eio;
 out:
 	free_page((unsigned long)buf);
 	return rc;
+Eio:
+	free_page((unsigned long)buf);
+	return -EIO;
 }
 
 int spufs_coredump_extra_notes_write(struct coredump_params *cprm)
-- 
cgit 


From 22a8cb8248ba5d340307ba72432253b1dbdb5cf7 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Tue, 8 Oct 2013 11:05:01 -0400
Subject: new helper: dump_align()

dump_skip to given alignment...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/powerpc/platforms/cell/spufs/coredump.c |  2 +-
 fs/binfmt_elf.c                              | 10 ++--------
 fs/binfmt_elf_fdpic.c                        | 10 ++--------
 fs/coredump.c                                |  9 +++++++++
 include/linux/coredump.h                     |  1 +
 5 files changed, 15 insertions(+), 17 deletions(-)

diff --git a/arch/powerpc/platforms/cell/spufs/coredump.c b/arch/powerpc/platforms/cell/spufs/coredump.c
index 1aaaa586fa50..be6212ddbf06 100644
--- a/arch/powerpc/platforms/cell/spufs/coredump.c
+++ b/arch/powerpc/platforms/cell/spufs/coredump.c
@@ -156,7 +156,7 @@ static int spufs_arch_write_note(struct spu_context *ctx, int i,
 	if (!dump_emit(cprm, fullname, en.n_namesz))
 		goto Eio;
 
-	if (!dump_skip(cprm, roundup(cprm->written, 4) - cprm->written))
+	if (!dump_align(cprm, 4))
 		goto Eio;
 
 	do {
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index c56ae3264a65..864154972670 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1225,12 +1225,6 @@ static int notesize(struct memelfnote *en)
 	return sz;
 }
 
-static int alignfile(struct coredump_params *cprm)
-{
-	static const char buf[4] = { 0, };
-	return dump_emit(cprm, buf, roundup(cprm->written, 4) - cprm->written);
-}
-
 static int writenote(struct memelfnote *men, struct coredump_params *cprm)
 {
 	struct elf_note en;
@@ -1239,8 +1233,8 @@ static int writenote(struct memelfnote *men, struct coredump_params *cprm)
 	en.n_type = men->type;
 
 	return dump_emit(cprm, &en, sizeof(en)) &&
-	    dump_emit(cprm, men->name, en.n_namesz) && alignfile(cprm) &&
-	    dump_emit(cprm, men->data, men->datasz) && alignfile(cprm);
+	    dump_emit(cprm, men->name, en.n_namesz) && dump_align(cprm, 4) &&
+	    dump_emit(cprm, men->data, men->datasz) && dump_align(cprm, 4);
 }
 
 static void fill_elf_header(struct elfhdr *elf, int segs,
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index a69fc4ae1c85..645f6e56f378 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -1267,12 +1267,6 @@ static int notesize(struct memelfnote *en)
 
 /* #define DEBUG */
 
-static int alignfile(struct coredump_params *cprm)
-{
-	static const char buf[4] = { 0, };
-	return dump_emit(cprm, buf, roundup(cprm->written, 4) - cprm->written);
-}
-
 static int writenote(struct memelfnote *men, struct coredump_params *cprm)
 {
 	struct elf_note en;
@@ -1281,8 +1275,8 @@ static int writenote(struct memelfnote *men, struct coredump_params *cprm)
 	en.n_type = men->type;
 
 	return dump_emit(cprm, &en, sizeof(en)) &&
-		dump_emit(cprm, men->name, en.n_namesz) && alignfile(cprm) &&
-		dump_emit(cprm, men->data, men->datasz) && alignfile(cprm);
+		dump_emit(cprm, men->name, en.n_namesz) && dump_align(cprm, 4) &&
+		dump_emit(cprm, men->data, men->datasz) && dump_align(cprm, 4);
 }
 
 static inline void fill_elf_fdpic_header(struct elfhdr *elf, int segs)
diff --git a/fs/coredump.c b/fs/coredump.c
index 18baf2c009d4..dc1f937413d5 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -728,3 +728,12 @@ int dump_skip(struct coredump_params *cprm, size_t nr)
 	}
 }
 EXPORT_SYMBOL(dump_skip);
+
+int dump_align(struct coredump_params *cprm, int align)
+{
+	unsigned mod = cprm->written & (align - 1);
+	if (align & (align - 1))
+		return -EINVAL;
+	return mod ? dump_skip(cprm, align - mod) : 0;
+}
+EXPORT_SYMBOL(dump_align);
diff --git a/include/linux/coredump.h b/include/linux/coredump.h
index 07a0af93f230..d8eb880be82a 100644
--- a/include/linux/coredump.h
+++ b/include/linux/coredump.h
@@ -13,6 +13,7 @@
 struct coredump_params;
 extern int dump_skip(struct coredump_params *cprm, size_t nr);
 extern int dump_emit(struct coredump_params *cprm, const void *addr, int nr);
+extern int dump_align(struct coredump_params *cprm, int align);
 #ifdef CONFIG_COREDUMP
 extern void do_coredump(siginfo_t *siginfo);
 #else
-- 
cgit 


From 6987843ff7e836ea65b554905aec34d2fad05c94 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Wed, 2 Oct 2013 22:35:11 -0400
Subject: take anon inode allocation to libfs.c

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/anon_inodes.c   | 50 ++------------------------------------------------
 fs/libfs.c         | 43 +++++++++++++++++++++++++++++++++++++++++++
 include/linux/fs.h |  1 +
 3 files changed, 46 insertions(+), 48 deletions(-)

diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
index 85c961849953..22f9698a1214 100644
--- a/fs/anon_inodes.c
+++ b/fs/anon_inodes.c
@@ -24,7 +24,6 @@
 
 static struct vfsmount *anon_inode_mnt __read_mostly;
 static struct inode *anon_inode_inode;
-static const struct file_operations anon_inode_fops;
 
 /*
  * anon_inodefs_dname() is called from d_path().
@@ -39,51 +38,6 @@ static const struct dentry_operations anon_inodefs_dentry_operations = {
 	.d_dname	= anon_inodefs_dname,
 };
 
-/*
- * nop .set_page_dirty method so that people can use .page_mkwrite on
- * anon inodes.
- */
-static int anon_set_page_dirty(struct page *page)
-{
-	return 0;
-};
-
-static const struct address_space_operations anon_aops = {
-	.set_page_dirty = anon_set_page_dirty,
-};
-
-/*
- * A single inode exists for all anon_inode files. Contrary to pipes,
- * anon_inode inodes have no associated per-instance data, so we need
- * only allocate one of them.
- */
-static struct inode *anon_inode_mkinode(struct super_block *s)
-{
-	struct inode *inode = new_inode_pseudo(s);
-
-	if (!inode)
-		return ERR_PTR(-ENOMEM);
-
-	inode->i_ino = get_next_ino();
-	inode->i_fop = &anon_inode_fops;
-
-	inode->i_mapping->a_ops = &anon_aops;
-
-	/*
-	 * Mark the inode dirty from the very beginning,
-	 * that way it will never be moved to the dirty
-	 * list because mark_inode_dirty() will think
-	 * that it already _is_ on the dirty list.
-	 */
-	inode->i_state = I_DIRTY;
-	inode->i_mode = S_IRUSR | S_IWUSR;
-	inode->i_uid = current_fsuid();
-	inode->i_gid = current_fsgid();
-	inode->i_flags |= S_PRIVATE;
-	inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
-	return inode;
-}
-
 static struct dentry *anon_inodefs_mount(struct file_system_type *fs_type,
 				int flags, const char *dev_name, void *data)
 {
@@ -92,7 +46,7 @@ static struct dentry *anon_inodefs_mount(struct file_system_type *fs_type,
 			&anon_inodefs_dentry_operations, ANON_INODE_FS_MAGIC);
 	if (!IS_ERR(root)) {
 		struct super_block *s = root->d_sb;
-		anon_inode_inode = anon_inode_mkinode(s);
+		anon_inode_inode = alloc_anon_inode(s);
 		if (IS_ERR(anon_inode_inode)) {
 			dput(root);
 			deactivate_locked_super(s);
@@ -134,7 +88,7 @@ struct file *anon_inode_getfile_private(const char *name,
 	if (fops->owner && !try_module_get(fops->owner))
 		return ERR_PTR(-ENOENT);
 
-	inode = anon_inode_mkinode(anon_inode_mnt->mnt_sb);
+	inode = alloc_anon_inode(anon_inode_mnt->mnt_sb);
 	if (IS_ERR(inode)) {
 		file = ERR_PTR(-ENOMEM);
 		goto err_module;
diff --git a/fs/libfs.c b/fs/libfs.c
index 8c5018493154..5de06947ba5e 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -1002,3 +1002,46 @@ void kfree_put_link(struct dentry *dentry, struct nameidata *nd,
 		kfree(s);
 }
 EXPORT_SYMBOL(kfree_put_link);
+
+/*
+ * nop .set_page_dirty method so that people can use .page_mkwrite on
+ * anon inodes.
+ */
+static int anon_set_page_dirty(struct page *page)
+{
+	return 0;
+};
+
+/*
+ * A single inode exists for all anon_inode files. Contrary to pipes,
+ * anon_inode inodes have no associated per-instance data, so we need
+ * only allocate one of them.
+ */
+struct inode *alloc_anon_inode(struct super_block *s)
+{
+	static const struct address_space_operations anon_aops = {
+		.set_page_dirty = anon_set_page_dirty,
+	};
+	struct inode *inode = new_inode_pseudo(s);
+
+	if (!inode)
+		return ERR_PTR(-ENOMEM);
+
+	inode->i_ino = get_next_ino();
+	inode->i_mapping->a_ops = &anon_aops;
+
+	/*
+	 * Mark the inode dirty from the very beginning,
+	 * that way it will never be moved to the dirty
+	 * list because mark_inode_dirty() will think
+	 * that it already _is_ on the dirty list.
+	 */
+	inode->i_state = I_DIRTY;
+	inode->i_mode = S_IRUSR | S_IWUSR;
+	inode->i_uid = current_fsuid();
+	inode->i_gid = current_fsgid();
+	inode->i_flags |= S_PRIVATE;
+	inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
+	return inode;
+}
+EXPORT_SYMBOL(alloc_anon_inode);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 2b0f4e974480..e190326ac212 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2562,6 +2562,7 @@ extern int simple_write_begin(struct file *file, struct address_space *mapping,
 extern int simple_write_end(struct file *file, struct address_space *mapping,
 			loff_t pos, unsigned len, unsigned copied,
 			struct page *page, void *fsdata);
+extern struct inode *alloc_anon_inode(struct super_block *);
 
 extern struct dentry *simple_lookup(struct inode *, struct dentry *, unsigned int flags);
 extern ssize_t generic_read_dir(struct file *, char __user *, size_t, loff_t *);
-- 
cgit 


From 71ad7490c1f32bd7829df76360f9fa17829868f3 Mon Sep 17 00:00:00 2001
From: Benjamin LaHaise <bcrl@kvack.org>
Date: Tue, 17 Sep 2013 10:18:25 -0400
Subject: rework aio migrate pages to use aio fs

Don't abuse anon_inodes.c to host private files needed by aio;
we can bloody well declare a mini-fs of our own instead of
patching up what anon_inodes can create for us.

Tested-by: Benjamin LaHaise <bcrl@kvack.org>
Acked-by: Benjamin LaHaise <bcrl@kvack.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/aio.c | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 57 insertions(+), 6 deletions(-)

diff --git a/fs/aio.c b/fs/aio.c
index 067e3d340c35..1f602d9be4c5 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -36,10 +36,10 @@
 #include <linux/eventfd.h>
 #include <linux/blkdev.h>
 #include <linux/compat.h>
-#include <linux/anon_inodes.h>
 #include <linux/migrate.h>
 #include <linux/ramfs.h>
 #include <linux/percpu-refcount.h>
+#include <linux/mount.h>
 
 #include <asm/kmap_types.h>
 #include <asm/uaccess.h>
@@ -152,12 +152,67 @@ unsigned long aio_max_nr = 0x10000; /* system wide maximum number of aio request
 static struct kmem_cache	*kiocb_cachep;
 static struct kmem_cache	*kioctx_cachep;
 
+static struct vfsmount *aio_mnt;
+
+static const struct file_operations aio_ring_fops;
+static const struct address_space_operations aio_ctx_aops;
+
+static struct file *aio_private_file(struct kioctx *ctx, loff_t nr_pages)
+{
+	struct qstr this = QSTR_INIT("[aio]", 5);
+	struct file *file;
+	struct path path;
+	struct inode *inode = alloc_anon_inode(aio_mnt->mnt_sb);
+	if (!inode)
+		return ERR_PTR(-ENOMEM);
+
+	inode->i_mapping->a_ops = &aio_ctx_aops;
+	inode->i_mapping->private_data = ctx;
+	inode->i_size = PAGE_SIZE * nr_pages;
+
+	path.dentry = d_alloc_pseudo(aio_mnt->mnt_sb, &this);
+	if (!path.dentry) {
+		iput(inode);
+		return ERR_PTR(-ENOMEM);
+	}
+	path.mnt = mntget(aio_mnt);
+
+	d_instantiate(path.dentry, inode);
+	file = alloc_file(&path, FMODE_READ | FMODE_WRITE, &aio_ring_fops);
+	if (IS_ERR(file)) {
+		path_put(&path);
+		return file;
+	}
+
+	file->f_flags = O_RDWR;
+	file->private_data = ctx;
+	return file;
+}
+
+static struct dentry *aio_mount(struct file_system_type *fs_type,
+				int flags, const char *dev_name, void *data)
+{
+	static const struct dentry_operations ops = {
+		.d_dname	= simple_dname,
+	};
+	return mount_pseudo(fs_type, "aio:", NULL, &ops, 0xa10a10a1);
+}
+
 /* aio_setup
  *	Creates the slab caches used by the aio routines, panic on
  *	failure as this is done early during the boot sequence.
  */
 static int __init aio_setup(void)
 {
+	static struct file_system_type aio_fs = {
+		.name		= "aio",
+		.mount		= aio_mount,
+		.kill_sb	= kill_anon_super,
+	};
+	aio_mnt = kern_mount(&aio_fs);
+	if (IS_ERR(aio_mnt))
+		panic("Failed to create aio fs mount.");
+
 	kiocb_cachep = KMEM_CACHE(kiocb, SLAB_HWCACHE_ALIGN|SLAB_PANIC);
 	kioctx_cachep = KMEM_CACHE(kioctx,SLAB_HWCACHE_ALIGN|SLAB_PANIC);
 
@@ -283,16 +338,12 @@ static int aio_setup_ring(struct kioctx *ctx)
 	if (nr_pages < 0)
 		return -EINVAL;
 
-	file = anon_inode_getfile_private("[aio]", &aio_ring_fops, ctx, O_RDWR);
+	file = aio_private_file(ctx, nr_pages);
 	if (IS_ERR(file)) {
 		ctx->aio_ring_file = NULL;
 		return -EAGAIN;
 	}
 
-	file->f_inode->i_mapping->a_ops = &aio_ctx_aops;
-	file->f_inode->i_mapping->private_data = ctx;
-	file->f_inode->i_size = PAGE_SIZE * (loff_t)nr_pages;
-
 	for (i = 0; i < nr_pages; i++) {
 		struct page *page;
 		page = find_or_create_page(file->f_inode->i_mapping,
-- 
cgit 


From 078d8e624c1837aa8ad65e58054a4a40d7ac46d2 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Wed, 9 Oct 2013 10:26:28 -0400
Subject: ... and kill anon_inode_getfile_private()

it's a seriously misguided API, now fortunately without users.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/anon_inodes.c            | 66 ---------------------------------------------
 include/linux/anon_inodes.h |  3 ---
 2 files changed, 69 deletions(-)

diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
index 22f9698a1214..24084732b1d0 100644
--- a/fs/anon_inodes.c
+++ b/fs/anon_inodes.c
@@ -62,72 +62,6 @@ static struct file_system_type anon_inode_fs_type = {
 	.kill_sb	= kill_anon_super,
 };
 
-/**
- * anon_inode_getfile_private - creates a new file instance by hooking it up to an
- *                      anonymous inode, and a dentry that describe the "class"
- *                      of the file
- *
- * @name:    [in]    name of the "class" of the new file
- * @fops:    [in]    file operations for the new file
- * @priv:    [in]    private data for the new file (will be file's private_data)
- * @flags:   [in]    flags
- *
- *
- * Similar to anon_inode_getfile, but each file holds a single inode.
- *
- */
-struct file *anon_inode_getfile_private(const char *name,
-					const struct file_operations *fops,
-					void *priv, int flags)
-{
-	struct qstr this;
-	struct path path;
-	struct file *file;
-	struct inode *inode;
-
-	if (fops->owner && !try_module_get(fops->owner))
-		return ERR_PTR(-ENOENT);
-
-	inode = alloc_anon_inode(anon_inode_mnt->mnt_sb);
-	if (IS_ERR(inode)) {
-		file = ERR_PTR(-ENOMEM);
-		goto err_module;
-	}
-
-	/*
-	 * Link the inode to a directory entry by creating a unique name
-	 * using the inode sequence number.
-	 */
-	file = ERR_PTR(-ENOMEM);
-	this.name = name;
-	this.len = strlen(name);
-	this.hash = 0;
-	path.dentry = d_alloc_pseudo(anon_inode_mnt->mnt_sb, &this);
-	if (!path.dentry)
-		goto err_module;
-
-	path.mnt = mntget(anon_inode_mnt);
-
-	d_instantiate(path.dentry, inode);
-
-	file = alloc_file(&path, OPEN_FMODE(flags), fops);
-	if (IS_ERR(file))
-		goto err_dput;
-
-	file->f_mapping = inode->i_mapping;
-	file->f_flags = flags & (O_ACCMODE | O_NONBLOCK);
-	file->private_data = priv;
-
-	return file;
-
-err_dput:
-	path_put(&path);
-err_module:
-	module_put(fops->owner);
-	return file;
-}
-EXPORT_SYMBOL_GPL(anon_inode_getfile_private);
-
 /**
  * anon_inode_getfile - creates a new file instance by hooking it up to an
  *                      anonymous inode, and a dentry that describe the "class"
diff --git a/include/linux/anon_inodes.h b/include/linux/anon_inodes.h
index cf573c22b81e..8013a45242fe 100644
--- a/include/linux/anon_inodes.h
+++ b/include/linux/anon_inodes.h
@@ -13,9 +13,6 @@ struct file_operations;
 struct file *anon_inode_getfile(const char *name,
 				const struct file_operations *fops,
 				void *priv, int flags);
-struct file *anon_inode_getfile_private(const char *name,
-				const struct file_operations *fops,
-				void *priv, int flags);
 int anon_inode_getfd(const char *name, const struct file_operations *fops,
 		     void *priv, int flags);
 
-- 
cgit 


From ce3959604878c1c693979ec552069dc8bdb5ccde Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 13 Oct 2013 17:23:53 -0400
Subject: constify copy_siginfo_to_user{,32}()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/arm64/kernel/signal32.c     | 2 +-
 arch/ia64/kernel/signal.c        | 2 +-
 arch/mips/kernel/signal32.c      | 2 +-
 arch/parisc/kernel/signal32.c    | 2 +-
 arch/parisc/kernel/signal32.h    | 2 +-
 arch/powerpc/kernel/signal_32.c  | 2 +-
 arch/s390/kernel/compat_signal.c | 2 +-
 arch/sparc/kernel/signal32.c     | 2 +-
 arch/tile/kernel/compat_signal.c | 2 +-
 arch/x86/ia32/ia32_signal.c      | 2 +-
 fs/binfmt_elf.c                  | 2 +-
 include/asm-generic/siginfo.h    | 2 +-
 include/linux/compat.h           | 2 +-
 kernel/signal.c                  | 2 +-
 14 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c
index e393174fe859..07da8c0fde2e 100644
--- a/arch/arm64/kernel/signal32.c
+++ b/arch/arm64/kernel/signal32.c
@@ -150,7 +150,7 @@ static inline int get_sigset_t(sigset_t *set,
 	return 0;
 }
 
-int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
+int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from)
 {
 	int err;
 
diff --git a/arch/ia64/kernel/signal.c b/arch/ia64/kernel/signal.c
index 3637e03d2282..33cab9a8adff 100644
--- a/arch/ia64/kernel/signal.c
+++ b/arch/ia64/kernel/signal.c
@@ -105,7 +105,7 @@ restore_sigcontext (struct sigcontext __user *sc, struct sigscratch *scr)
 }
 
 int
-copy_siginfo_to_user (siginfo_t __user *to, siginfo_t *from)
+copy_siginfo_to_user (siginfo_t __user *to, const siginfo_t *from)
 {
 	if (!access_ok(VERIFY_WRITE, to, sizeof(siginfo_t)))
 		return -EFAULT;
diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c
index 57de8b751627..1905a419aa46 100644
--- a/arch/mips/kernel/signal32.c
+++ b/arch/mips/kernel/signal32.c
@@ -314,7 +314,7 @@ SYSCALL_DEFINE3(32_sigaction, long, sig, const struct compat_sigaction __user *,
 	return ret;
 }
 
-int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
+int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from)
 {
 	int err;
 
diff --git a/arch/parisc/kernel/signal32.c b/arch/parisc/kernel/signal32.c
index 6c6a271a6140..984abbee71ca 100644
--- a/arch/parisc/kernel/signal32.c
+++ b/arch/parisc/kernel/signal32.c
@@ -319,7 +319,7 @@ copy_siginfo_from_user32 (siginfo_t *to, compat_siginfo_t __user *from)
 }
 
 int
-copy_siginfo_to_user32 (compat_siginfo_t __user *to, siginfo_t *from)
+copy_siginfo_to_user32 (compat_siginfo_t __user *to, const siginfo_t *from)
 {
 	compat_uptr_t addr;
 	compat_int_t val;
diff --git a/arch/parisc/kernel/signal32.h b/arch/parisc/kernel/signal32.h
index 72ab41a51f32..af51d4ccee42 100644
--- a/arch/parisc/kernel/signal32.h
+++ b/arch/parisc/kernel/signal32.h
@@ -34,7 +34,7 @@ struct compat_ucontext {
 
 /* ELF32 signal handling */
 
-int copy_siginfo_to_user32 (compat_siginfo_t __user *to, siginfo_t *from);
+int copy_siginfo_to_user32 (compat_siginfo_t __user *to, const siginfo_t *from);
 int copy_siginfo_from_user32 (siginfo_t *to, compat_siginfo_t __user *from);
 
 /* In a deft move of uber-hackery, we decide to carry the top half of all
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index bebdf1a1a540..149cd583d061 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -891,7 +891,7 @@ static long restore_tm_user_regs(struct pt_regs *regs,
 #endif
 
 #ifdef CONFIG_PPC64
-int copy_siginfo_to_user32(struct compat_siginfo __user *d, siginfo_t *s)
+int copy_siginfo_to_user32(struct compat_siginfo __user *d, const siginfo_t *s)
 {
 	int err;
 
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index 1389b637dae5..44b25269a970 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -49,7 +49,7 @@ typedef struct
 	__u32 gprs_high[NUM_GPRS];
 } rt_sigframe32;
 
-int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
+int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from)
 {
 	int err;
 
diff --git a/arch/sparc/kernel/signal32.c b/arch/sparc/kernel/signal32.c
index b524f91dd0e5..ee789d2ef05d 100644
--- a/arch/sparc/kernel/signal32.c
+++ b/arch/sparc/kernel/signal32.c
@@ -68,7 +68,7 @@ struct rt_signal_frame32 {
 	/* __siginfo_rwin_t * */u32 rwin_save;
 } __attribute__((aligned(8)));
 
-int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
+int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from)
 {
 	int err;
 
diff --git a/arch/tile/kernel/compat_signal.c b/arch/tile/kernel/compat_signal.c
index 85e00b2f39bf..19c04b5ce408 100644
--- a/arch/tile/kernel/compat_signal.c
+++ b/arch/tile/kernel/compat_signal.c
@@ -49,7 +49,7 @@ struct compat_rt_sigframe {
 	struct compat_ucontext uc;
 };
 
-int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from)
+int copy_siginfo_to_user32(struct compat_siginfo __user *to, const siginfo_t *from)
 {
 	int err;
 
diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c
index 665a730307f2..220675795e08 100644
--- a/arch/x86/ia32/ia32_signal.c
+++ b/arch/x86/ia32/ia32_signal.c
@@ -34,7 +34,7 @@
 #include <asm/sys_ia32.h>
 #include <asm/smap.h>
 
-int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from)
+int copy_siginfo_to_user32(compat_siginfo_t __user *to, const siginfo_t *from)
 {
 	int err = 0;
 	bool ia32 = test_thread_flag(TIF_IA32);
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 864154972670..a6f8cb498b0e 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1374,7 +1374,7 @@ static void fill_auxv_note(struct memelfnote *note, struct mm_struct *mm)
 }
 
 static void fill_siginfo_note(struct memelfnote *note, user_siginfo_t *csigdata,
-		siginfo_t *siginfo)
+		const siginfo_t *siginfo)
 {
 	mm_segment_t old_fs = get_fs();
 	set_fs(KERNEL_DS);
diff --git a/include/asm-generic/siginfo.h b/include/asm-generic/siginfo.h
index b685d3bd32e2..3d1a3af5cf59 100644
--- a/include/asm-generic/siginfo.h
+++ b/include/asm-generic/siginfo.h
@@ -32,6 +32,6 @@ static inline void copy_siginfo(struct siginfo *to, struct siginfo *from)
 
 #endif
 
-extern int copy_siginfo_to_user(struct siginfo __user *to, struct siginfo *from);
+extern int copy_siginfo_to_user(struct siginfo __user *to, const struct siginfo *from);
 
 #endif
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 345da00a86e0..78cdf51ff5ba 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -362,7 +362,7 @@ long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask,
 long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask,
 		       unsigned long bitmap_size);
 int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from);
-int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from);
+int copy_siginfo_to_user32(struct compat_siginfo __user *to, const siginfo_t *from);
 int get_compat_sigevent(struct sigevent *event,
 		const struct compat_sigevent __user *u_event);
 long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig,
diff --git a/kernel/signal.c b/kernel/signal.c
index ded28b91fa53..940b30ee9a30 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2723,7 +2723,7 @@ COMPAT_SYSCALL_DEFINE2(rt_sigpending, compat_sigset_t __user *, uset,
 
 #ifndef HAVE_ARCH_COPY_SIGINFO_TO_USER
 
-int copy_siginfo_to_user(siginfo_t __user *to, siginfo_t *from)
+int copy_siginfo_to_user(siginfo_t __user *to, const siginfo_t *from)
 {
 	int err;
 
-- 
cgit 


From ec57941e031685de434916e5398d0ca1d44cd374 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 13 Oct 2013 17:57:29 -0400
Subject: constify do_coredump() argument

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/binfmt_elf.c          | 4 ++--
 fs/coredump.c            | 2 +-
 include/linux/binfmts.h  | 2 +-
 include/linux/coredump.h | 4 ++--
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index a6f8cb498b0e..1af412b96e06 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1581,7 +1581,7 @@ static int fill_thread_core_info(struct elf_thread_core_info *t,
 
 static int fill_note_info(struct elfhdr *elf, int phdrs,
 			  struct elf_note_info *info,
-			  siginfo_t *siginfo, struct pt_regs *regs)
+			  const siginfo_t *siginfo, struct pt_regs *regs)
 {
 	struct task_struct *dump_task = current;
 	const struct user_regset_view *view = task_user_regset_view(dump_task);
@@ -1830,7 +1830,7 @@ static int elf_note_info_init(struct elf_note_info *info)
 
 static int fill_note_info(struct elfhdr *elf, int phdrs,
 			  struct elf_note_info *info,
-			  siginfo_t *siginfo, struct pt_regs *regs)
+			  const siginfo_t *siginfo, struct pt_regs *regs)
 {
 	struct list_head *t;
 
diff --git a/fs/coredump.c b/fs/coredump.c
index dc1f937413d5..62406b6959b6 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -485,7 +485,7 @@ static int umh_pipe_setup(struct subprocess_info *info, struct cred *new)
 	return err;
 }
 
-void do_coredump(siginfo_t *siginfo)
+void do_coredump(const siginfo_t *siginfo)
 {
 	struct core_state core_state;
 	struct core_name cn;
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index 8aa507e7a41a..790d3305a5a7 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -56,7 +56,7 @@ struct linux_binprm {
 
 /* Function parameter for binfmt->coredump */
 struct coredump_params {
-	siginfo_t *siginfo;
+	const siginfo_t *siginfo;
 	struct pt_regs *regs;
 	struct file *file;
 	unsigned long limit;
diff --git a/include/linux/coredump.h b/include/linux/coredump.h
index d8eb880be82a..d016a121a8c4 100644
--- a/include/linux/coredump.h
+++ b/include/linux/coredump.h
@@ -15,9 +15,9 @@ extern int dump_skip(struct coredump_params *cprm, size_t nr);
 extern int dump_emit(struct coredump_params *cprm, const void *addr, int nr);
 extern int dump_align(struct coredump_params *cprm, int align);
 #ifdef CONFIG_COREDUMP
-extern void do_coredump(siginfo_t *siginfo);
+extern void do_coredump(const siginfo_t *siginfo);
 #else
-static inline void do_coredump(siginfo_t *siginfo) {}
+static inline void do_coredump(const siginfo_t *siginfo) {}
 #endif
 
 #endif /* _LINUX_COREDUMP_H */
-- 
cgit 


From afabada957a6b28abfd37eb52efeefdfe6871c4b Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Mon, 14 Oct 2013 07:39:56 -0400
Subject: elf{,_fdpic} coredump: get rid of pointless if (siginfo->si_signo)

we can't get to do_coredump() if that condition isn't satisfied...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/binfmt_elf.c       | 33 +++++++++++++++------------------
 fs/binfmt_elf_fdpic.c | 35 ++++++++++++++++-------------------
 2 files changed, 31 insertions(+), 37 deletions(-)

diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 1af412b96e06..571a42326908 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -1833,31 +1833,28 @@ static int fill_note_info(struct elfhdr *elf, int phdrs,
 			  const siginfo_t *siginfo, struct pt_regs *regs)
 {
 	struct list_head *t;
+	struct core_thread *ct;
+	struct elf_thread_status *ets;
 
 	if (!elf_note_info_init(info))
 		return 0;
 
-	if (siginfo->si_signo) {
-		struct core_thread *ct;
-		struct elf_thread_status *ets;
-
-		for (ct = current->mm->core_state->dumper.next;
-						ct; ct = ct->next) {
-			ets = kzalloc(sizeof(*ets), GFP_KERNEL);
-			if (!ets)
-				return 0;
+	for (ct = current->mm->core_state->dumper.next;
+					ct; ct = ct->next) {
+		ets = kzalloc(sizeof(*ets), GFP_KERNEL);
+		if (!ets)
+			return 0;
 
-			ets->thread = ct->task;
-			list_add(&ets->list, &info->thread_list);
-		}
+		ets->thread = ct->task;
+		list_add(&ets->list, &info->thread_list);
+	}
 
-		list_for_each(t, &info->thread_list) {
-			int sz;
+	list_for_each(t, &info->thread_list) {
+		int sz;
 
-			ets = list_entry(t, struct elf_thread_status, list);
-			sz = elf_dump_thread_status(siginfo->si_signo, ets);
-			info->thread_status_size += sz;
-		}
+		ets = list_entry(t, struct elf_thread_status, list);
+		sz = elf_dump_thread_status(siginfo->si_signo, ets);
+		info->thread_status_size += sz;
 	}
 	/* now collect the dump for the current */
 	memset(info->prstatus, 0, sizeof(*info->prstatus));
diff --git a/fs/binfmt_elf_fdpic.c b/fs/binfmt_elf_fdpic.c
index 645f6e56f378..fe2a643ee005 100644
--- a/fs/binfmt_elf_fdpic.c
+++ b/fs/binfmt_elf_fdpic.c
@@ -1561,6 +1561,8 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
 	struct elf_shdr *shdr4extnum = NULL;
 	Elf_Half e_phnum;
 	elf_addr_t e_shoff;
+	struct core_thread *ct;
+	struct elf_thread_status *tmp;
 
 	/*
 	 * We no longer stop all VM operations.
@@ -1596,28 +1598,23 @@ static int elf_fdpic_core_dump(struct coredump_params *cprm)
 		goto cleanup;
 #endif
 
-	if (cprm->siginfo->si_signo) {
-		struct core_thread *ct;
-		struct elf_thread_status *tmp;
-
-		for (ct = current->mm->core_state->dumper.next;
-						ct; ct = ct->next) {
-			tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
-			if (!tmp)
-				goto cleanup;
+	for (ct = current->mm->core_state->dumper.next;
+					ct; ct = ct->next) {
+		tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
+		if (!tmp)
+			goto cleanup;
 
-			tmp->thread = ct->task;
-			list_add(&tmp->list, &thread_list);
-		}
+		tmp->thread = ct->task;
+		list_add(&tmp->list, &thread_list);
+	}
 
-		list_for_each(t, &thread_list) {
-			struct elf_thread_status *tmp;
-			int sz;
+	list_for_each(t, &thread_list) {
+		struct elf_thread_status *tmp;
+		int sz;
 
-			tmp = list_entry(t, struct elf_thread_status, list);
-			sz = elf_dump_thread_status(cprm->siginfo->si_signo, tmp);
-			thread_status_size += sz;
-		}
+		tmp = list_entry(t, struct elf_thread_status, list);
+		sz = elf_dump_thread_status(cprm->siginfo->si_signo, tmp);
+		thread_status_size += sz;
 	}
 
 	/* now collect the dump for the current */
-- 
cgit 


From b18825a7c8e37a7cf6abb97a12a6ad71af160de7 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Thu, 12 Sep 2013 19:22:53 +0100
Subject: VFS: Put a small type field into struct dentry::d_flags

Put a type field into struct dentry::d_flags to indicate if the dentry is one
of the following types that relate particularly to pathwalk:

	Miss (negative dentry)
	Directory
	"Automount" directory (defective - no i_op->lookup())
	Symlink
	Other (regular, socket, fifo, device)

The type field is set to one of the first five types on a dentry by calls to
__d_instantiate() and d_obtain_alias() from information in the inode (if one is
given).

The type is cleared by dentry_unlink_inode() when it reconstitutes an existing
dentry as a negative dentry.

Accessors provided are:

	d_set_type(dentry, type)
	d_is_directory(dentry)
	d_is_autodir(dentry)
	d_is_symlink(dentry)
	d_is_file(dentry)
	d_is_negative(dentry)
	d_is_positive(dentry)

A bunch of checks in pathname resolution switched to those.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/dcache.c            |  42 +++++++++++++++++---
 fs/namei.c             |  95 ++++++++++++++++++---------------------------
 include/linux/dcache.h | 103 +++++++++++++++++++++++++++++++++++++++----------
 3 files changed, 158 insertions(+), 82 deletions(-)

diff --git a/fs/dcache.c b/fs/dcache.c
index fb7bcf3ba5d6..525770e576db 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -343,6 +343,7 @@ static void dentry_unlink_inode(struct dentry * dentry)
 	__releases(dentry->d_inode->i_lock)
 {
 	struct inode *inode = dentry->d_inode;
+	__d_clear_type(dentry);
 	dentry->d_inode = NULL;
 	hlist_del_init(&dentry->d_alias);
 	dentry_rcuwalk_barrier(dentry);
@@ -1648,14 +1649,42 @@ void d_set_d_op(struct dentry *dentry, const struct dentry_operations *op)
 }
 EXPORT_SYMBOL(d_set_d_op);
 
+static unsigned d_flags_for_inode(struct inode *inode)
+{
+	unsigned add_flags = DCACHE_FILE_TYPE;
+
+	if (!inode)
+		return DCACHE_MISS_TYPE;
+
+	if (S_ISDIR(inode->i_mode)) {
+		add_flags = DCACHE_DIRECTORY_TYPE;
+		if (unlikely(!(inode->i_opflags & IOP_LOOKUP))) {
+			if (unlikely(!inode->i_op->lookup))
+				add_flags = DCACHE_AUTODIR_TYPE;
+			else
+				inode->i_opflags |= IOP_LOOKUP;
+		}
+	} else if (unlikely(!(inode->i_opflags & IOP_NOFOLLOW))) {
+		if (unlikely(inode->i_op->follow_link))
+			add_flags = DCACHE_SYMLINK_TYPE;
+		else
+			inode->i_opflags |= IOP_NOFOLLOW;
+	}
+
+	if (unlikely(IS_AUTOMOUNT(inode)))
+		add_flags |= DCACHE_NEED_AUTOMOUNT;
+	return add_flags;
+}
+
 static void __d_instantiate(struct dentry *dentry, struct inode *inode)
 {
+	unsigned add_flags = d_flags_for_inode(inode);
+
 	spin_lock(&dentry->d_lock);
-	if (inode) {
-		if (unlikely(IS_AUTOMOUNT(inode)))
-			dentry->d_flags |= DCACHE_NEED_AUTOMOUNT;
+	dentry->d_flags &= ~DCACHE_ENTRY_TYPE;
+	dentry->d_flags |= add_flags;
+	if (inode)
 		hlist_add_head(&dentry->d_alias, &inode->i_dentry);
-	}
 	dentry->d_inode = inode;
 	dentry_rcuwalk_barrier(dentry);
 	spin_unlock(&dentry->d_lock);
@@ -1860,6 +1889,7 @@ struct dentry *d_obtain_alias(struct inode *inode)
 	static const struct qstr anonstring = QSTR_INIT("/", 1);
 	struct dentry *tmp;
 	struct dentry *res;
+	unsigned add_flags;
 
 	if (!inode)
 		return ERR_PTR(-ESTALE);
@@ -1885,9 +1915,11 @@ struct dentry *d_obtain_alias(struct inode *inode)
 	}
 
 	/* attach a disconnected dentry */
+	add_flags = d_flags_for_inode(inode) | DCACHE_DISCONNECTED;
+
 	spin_lock(&tmp->d_lock);
 	tmp->d_inode = inode;
-	tmp->d_flags |= DCACHE_DISCONNECTED;
+	tmp->d_flags |= add_flags;
 	hlist_add_head(&tmp->d_alias, &inode->i_dentry);
 	hlist_bl_lock(&tmp->d_sb->s_anon);
 	hlist_bl_add_head(&tmp->d_hash, &tmp->d_sb->s_anon);
diff --git a/fs/namei.c b/fs/namei.c
index e5c0118ba9f8..e1fa43346c61 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1501,18 +1501,9 @@ static void terminate_walk(struct nameidata *nd)
  * so we keep a cache of "no, this doesn't need follow_link"
  * for the common case.
  */
-static inline int should_follow_link(struct inode *inode, int follow)
+static inline int should_follow_link(struct dentry *dentry, int follow)
 {
-	if (unlikely(!(inode->i_opflags & IOP_NOFOLLOW))) {
-		if (likely(inode->i_op->follow_link))
-			return follow;
-
-		/* This gets set once for the inode lifetime */
-		spin_lock(&inode->i_lock);
-		inode->i_opflags |= IOP_NOFOLLOW;
-		spin_unlock(&inode->i_lock);
-	}
-	return 0;
+	return unlikely(d_is_symlink(dentry)) ? follow : 0;
 }
 
 static inline int walk_component(struct nameidata *nd, struct path *path,
@@ -1542,7 +1533,7 @@ static inline int walk_component(struct nameidata *nd, struct path *path,
 	if (!inode)
 		goto out_path_put;
 
-	if (should_follow_link(inode, follow)) {
+	if (should_follow_link(path->dentry, follow)) {
 		if (nd->flags & LOOKUP_RCU) {
 			if (unlikely(unlazy_walk(nd, path->dentry))) {
 				err = -ECHILD;
@@ -1600,26 +1591,6 @@ static inline int nested_symlink(struct path *path, struct nameidata *nd)
 	return res;
 }
 
-/*
- * We really don't want to look at inode->i_op->lookup
- * when we don't have to. So we keep a cache bit in
- * the inode ->i_opflags field that says "yes, we can
- * do lookup on this inode".
- */
-static inline int can_lookup(struct inode *inode)
-{
-	if (likely(inode->i_opflags & IOP_LOOKUP))
-		return 1;
-	if (likely(!inode->i_op->lookup))
-		return 0;
-
-	/* We do this once for the lifetime of the inode */
-	spin_lock(&inode->i_lock);
-	inode->i_opflags |= IOP_LOOKUP;
-	spin_unlock(&inode->i_lock);
-	return 1;
-}
-
 /*
  * We can do the critical dentry name comparison and hashing
  * operations one word at a time, but we are limited to:
@@ -1823,7 +1794,7 @@ static int link_path_walk(const char *name, struct nameidata *nd)
 			if (err)
 				return err;
 		}
-		if (!can_lookup(nd->inode)) {
+		if (!d_is_directory(nd->path.dentry)) {
 			err = -ENOTDIR; 
 			break;
 		}
@@ -1841,9 +1812,10 @@ static int path_init(int dfd, const char *name, unsigned int flags,
 	nd->flags = flags | LOOKUP_JUMPED;
 	nd->depth = 0;
 	if (flags & LOOKUP_ROOT) {
-		struct inode *inode = nd->root.dentry->d_inode;
+		struct dentry *root = nd->root.dentry;
+		struct inode *inode = root->d_inode;
 		if (*name) {
-			if (!can_lookup(inode))
+			if (!d_is_directory(root))
 				return -ENOTDIR;
 			retval = inode_permission(inode, MAY_EXEC);
 			if (retval)
@@ -1899,7 +1871,7 @@ static int path_init(int dfd, const char *name, unsigned int flags,
 		dentry = f.file->f_path.dentry;
 
 		if (*name) {
-			if (!can_lookup(dentry->d_inode)) {
+			if (!d_is_directory(dentry)) {
 				fdput(f);
 				return -ENOTDIR;
 			}
@@ -1981,7 +1953,7 @@ static int path_lookupat(int dfd, const char *name,
 		err = complete_walk(nd);
 
 	if (!err && nd->flags & LOOKUP_DIRECTORY) {
-		if (!can_lookup(nd->inode)) {
+		if (!d_is_directory(nd->path.dentry)) {
 			path_put(&nd->path);
 			err = -ENOTDIR;
 		}
@@ -2273,7 +2245,7 @@ done:
 	}
 	path->dentry = dentry;
 	path->mnt = mntget(nd->path.mnt);
-	if (should_follow_link(dentry->d_inode, nd->flags & LOOKUP_FOLLOW))
+	if (should_follow_link(dentry, nd->flags & LOOKUP_FOLLOW))
 		return 1;
 	follow_mount(path);
 	error = 0;
@@ -2417,12 +2389,14 @@ static inline int check_sticky(struct inode *dir, struct inode *inode)
  * 10. We don't allow removal of NFS sillyrenamed files; it's handled by
  *     nfs_async_unlink().
  */
-static int may_delete(struct inode *dir,struct dentry *victim,int isdir)
+static int may_delete(struct inode *dir, struct dentry *victim, bool isdir)
 {
+	struct inode *inode = victim->d_inode;
 	int error;
 
-	if (!victim->d_inode)
+	if (d_is_negative(victim))
 		return -ENOENT;
+	BUG_ON(!inode);
 
 	BUG_ON(victim->d_parent->d_inode != dir);
 	audit_inode_child(dir, victim, AUDIT_TYPE_CHILD_DELETE);
@@ -2432,15 +2406,16 @@ static int may_delete(struct inode *dir,struct dentry *victim,int isdir)
 		return error;
 	if (IS_APPEND(dir))
 		return -EPERM;
-	if (check_sticky(dir, victim->d_inode)||IS_APPEND(victim->d_inode)||
-	    IS_IMMUTABLE(victim->d_inode) || IS_SWAPFILE(victim->d_inode))
+
+	if (check_sticky(dir, inode) || IS_APPEND(inode) ||
+	    IS_IMMUTABLE(inode) || IS_SWAPFILE(inode))
 		return -EPERM;
 	if (isdir) {
-		if (!S_ISDIR(victim->d_inode->i_mode))
+		if (!d_is_directory(victim) && !d_is_autodir(victim))
 			return -ENOTDIR;
 		if (IS_ROOT(victim))
 			return -EBUSY;
-	} else if (S_ISDIR(victim->d_inode->i_mode))
+	} else if (d_is_directory(victim) || d_is_autodir(victim))
 		return -EISDIR;
 	if (IS_DEADDIR(dir))
 		return -ENOENT;
@@ -2974,7 +2949,7 @@ retry_lookup:
 	/*
 	 * create/update audit record if it already exists.
 	 */
-	if (path->dentry->d_inode)
+	if (d_is_positive(path->dentry))
 		audit_inode(name, path->dentry, 0);
 
 	/*
@@ -3003,12 +2978,12 @@ retry_lookup:
 finish_lookup:
 	/* we _can_ be in RCU mode here */
 	error = -ENOENT;
-	if (!inode) {
+	if (d_is_negative(path->dentry)) {
 		path_to_nameidata(path, nd);
 		goto out;
 	}
 
-	if (should_follow_link(inode, !symlink_ok)) {
+	if (should_follow_link(path->dentry, !symlink_ok)) {
 		if (nd->flags & LOOKUP_RCU) {
 			if (unlikely(unlazy_walk(nd, path->dentry))) {
 				error = -ECHILD;
@@ -3037,10 +3012,11 @@ finish_open:
 	}
 	audit_inode(name, nd->path.dentry, 0);
 	error = -EISDIR;
-	if ((open_flag & O_CREAT) && S_ISDIR(nd->inode->i_mode))
+	if ((open_flag & O_CREAT) &&
+	    (d_is_directory(nd->path.dentry) || d_is_autodir(nd->path.dentry)))
 		goto out;
 	error = -ENOTDIR;
-	if ((nd->flags & LOOKUP_DIRECTORY) && !can_lookup(nd->inode))
+	if ((nd->flags & LOOKUP_DIRECTORY) && !d_is_directory(nd->path.dentry))
 		goto out;
 	if (!S_ISREG(nd->inode->i_mode))
 		will_truncate = false;
@@ -3266,7 +3242,7 @@ struct file *do_file_open_root(struct dentry *dentry, struct vfsmount *mnt,
 	nd.root.mnt = mnt;
 	nd.root.dentry = dentry;
 
-	if (dentry->d_inode->i_op->follow_link && op->intent & LOOKUP_OPEN)
+	if (d_is_symlink(dentry) && op->intent & LOOKUP_OPEN)
 		return ERR_PTR(-ELOOP);
 
 	file = path_openat(-1, &filename, &nd, op, flags | LOOKUP_RCU);
@@ -3316,8 +3292,9 @@ struct dentry *kern_path_create(int dfd, const char *pathname,
 		goto unlock;
 
 	error = -EEXIST;
-	if (dentry->d_inode)
+	if (d_is_positive(dentry))
 		goto fail;
+
 	/*
 	 * Special case - lookup gave negative, but... we had foo/bar/
 	 * From the vfs_mknod() POV we just have a negative dentry -
@@ -3706,7 +3683,7 @@ retry:
 		if (nd.last.name[nd.last.len])
 			goto slashes;
 		inode = dentry->d_inode;
-		if (!inode)
+		if (d_is_negative(dentry))
 			goto slashes;
 		ihold(inode);
 		error = security_path_unlink(&nd.path, dentry);
@@ -3731,8 +3708,12 @@ exit1:
 	return error;
 
 slashes:
-	error = !dentry->d_inode ? -ENOENT :
-		S_ISDIR(dentry->d_inode->i_mode) ? -EISDIR : -ENOTDIR;
+	if (d_is_negative(dentry))
+		error = -ENOENT;
+	else if (d_is_directory(dentry) || d_is_autodir(dentry))
+		error = -EISDIR;
+	else
+		error = -ENOTDIR;
 	goto exit2;
 }
 
@@ -4046,7 +4027,7 @@ int vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	       struct inode *new_dir, struct dentry *new_dentry)
 {
 	int error;
-	int is_dir = S_ISDIR(old_dentry->d_inode->i_mode);
+	int is_dir = d_is_directory(old_dentry) || d_is_autodir(old_dentry);
 	const unsigned char *old_name;
 
 	if (old_dentry->d_inode == new_dentry->d_inode)
@@ -4134,10 +4115,10 @@ retry:
 		goto exit3;
 	/* source must exist */
 	error = -ENOENT;
-	if (!old_dentry->d_inode)
+	if (d_is_negative(old_dentry))
 		goto exit4;
 	/* unless the source is a directory trailing slashes give -ENOTDIR */
-	if (!S_ISDIR(old_dentry->d_inode->i_mode)) {
+	if (!d_is_directory(old_dentry) && !d_is_autodir(old_dentry)) {
 		error = -ENOTDIR;
 		if (oldnd.last.name[oldnd.last.len])
 			goto exit4;
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index 716c3760ee39..57e87e749a48 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -169,13 +169,13 @@ struct dentry_operations {
  */
 
 /* d_flags entries */
-#define DCACHE_OP_HASH		0x0001
-#define DCACHE_OP_COMPARE	0x0002
-#define DCACHE_OP_REVALIDATE	0x0004
-#define DCACHE_OP_DELETE	0x0008
-#define DCACHE_OP_PRUNE         0x0010
+#define DCACHE_OP_HASH			0x00000001
+#define DCACHE_OP_COMPARE		0x00000002
+#define DCACHE_OP_REVALIDATE		0x00000004
+#define DCACHE_OP_DELETE		0x00000008
+#define DCACHE_OP_PRUNE			0x00000010
 
-#define	DCACHE_DISCONNECTED	0x0020
+#define	DCACHE_DISCONNECTED		0x00000020
      /* This dentry is possibly not currently connected to the dcache tree, in
       * which case its parent will either be itself, or will have this flag as
       * well.  nfsd will not use a dentry with this bit set, but will first
@@ -186,30 +186,38 @@ struct dentry_operations {
       * dentry into place and return that dentry rather than the passed one,
       * typically using d_splice_alias. */
 
-#define DCACHE_REFERENCED	0x0040  /* Recently used, don't discard. */
-#define DCACHE_RCUACCESS	0x0080	/* Entry has ever been RCU-visible */
+#define DCACHE_REFERENCED		0x00000040 /* Recently used, don't discard. */
+#define DCACHE_RCUACCESS		0x00000080 /* Entry has ever been RCU-visible */
 
-#define DCACHE_CANT_MOUNT	0x0100
-#define DCACHE_GENOCIDE		0x0200
-#define DCACHE_SHRINK_LIST	0x0400
+#define DCACHE_CANT_MOUNT		0x00000100
+#define DCACHE_GENOCIDE			0x00000200
+#define DCACHE_SHRINK_LIST		0x00000400
 
-#define DCACHE_OP_WEAK_REVALIDATE	0x0800
+#define DCACHE_OP_WEAK_REVALIDATE	0x00000800
 
-#define DCACHE_NFSFS_RENAMED	0x1000
+#define DCACHE_NFSFS_RENAMED		0x00001000
      /* this dentry has been "silly renamed" and has to be deleted on the last
       * dput() */
-#define DCACHE_COOKIE		0x2000	/* For use by dcookie subsystem */
-#define DCACHE_FSNOTIFY_PARENT_WATCHED 0x4000
+#define DCACHE_COOKIE			0x00002000 /* For use by dcookie subsystem */
+#define DCACHE_FSNOTIFY_PARENT_WATCHED	0x00004000
      /* Parent inode is watched by some fsnotify listener */
 
-#define DCACHE_MOUNTED		0x10000	/* is a mountpoint */
-#define DCACHE_NEED_AUTOMOUNT	0x20000	/* handle automount on this dir */
-#define DCACHE_MANAGE_TRANSIT	0x40000	/* manage transit from this dirent */
+#define DCACHE_DENTRY_KILLED		0x00008000
+
+#define DCACHE_MOUNTED			0x00010000 /* is a mountpoint */
+#define DCACHE_NEED_AUTOMOUNT		0x00020000 /* handle automount on this dir */
+#define DCACHE_MANAGE_TRANSIT		0x00040000 /* manage transit from this dirent */
 #define DCACHE_MANAGED_DENTRY \
 	(DCACHE_MOUNTED|DCACHE_NEED_AUTOMOUNT|DCACHE_MANAGE_TRANSIT)
 
-#define DCACHE_LRU_LIST		0x80000
-#define DCACHE_DENTRY_KILLED	0x100000
+#define DCACHE_LRU_LIST			0x00080000
+
+#define DCACHE_ENTRY_TYPE		0x00700000
+#define DCACHE_MISS_TYPE		0x00000000 /* Negative dentry */
+#define DCACHE_DIRECTORY_TYPE		0x00100000 /* Normal directory */
+#define DCACHE_AUTODIR_TYPE		0x00200000 /* Lookupless directory (presumed automount) */
+#define DCACHE_SYMLINK_TYPE		0x00300000 /* Symlink */
+#define DCACHE_FILE_TYPE		0x00400000 /* Other file type */
 
 extern seqlock_t rename_lock;
 
@@ -394,6 +402,61 @@ static inline bool d_mountpoint(const struct dentry *dentry)
 	return dentry->d_flags & DCACHE_MOUNTED;
 }
 
+/*
+ * Directory cache entry type accessor functions.
+ */
+static inline void __d_set_type(struct dentry *dentry, unsigned type)
+{
+	dentry->d_flags = (dentry->d_flags & ~DCACHE_ENTRY_TYPE) | type;
+}
+
+static inline void __d_clear_type(struct dentry *dentry)
+{
+	__d_set_type(dentry, DCACHE_MISS_TYPE);
+}
+
+static inline void d_set_type(struct dentry *dentry, unsigned type)
+{
+	spin_lock(&dentry->d_lock);
+	__d_set_type(dentry, type);
+	spin_unlock(&dentry->d_lock);
+}
+
+static inline unsigned __d_entry_type(const struct dentry *dentry)
+{
+	return dentry->d_flags & DCACHE_ENTRY_TYPE;
+}
+
+static inline bool d_is_directory(const struct dentry *dentry)
+{
+	return __d_entry_type(dentry) == DCACHE_DIRECTORY_TYPE;
+}
+
+static inline bool d_is_autodir(const struct dentry *dentry)
+{
+	return __d_entry_type(dentry) == DCACHE_AUTODIR_TYPE;
+}
+
+static inline bool d_is_symlink(const struct dentry *dentry)
+{
+	return __d_entry_type(dentry) == DCACHE_SYMLINK_TYPE;
+}
+
+static inline bool d_is_file(const struct dentry *dentry)
+{
+	return __d_entry_type(dentry) == DCACHE_FILE_TYPE;
+}
+
+static inline bool d_is_negative(const struct dentry *dentry)
+{
+	return __d_entry_type(dentry) == DCACHE_MISS_TYPE;
+}
+
+static inline bool d_is_positive(const struct dentry *dentry)
+{
+	return !d_is_negative(dentry);
+}
+
 extern int sysctl_vfs_cache_pressure;
 
 static inline unsigned long vfs_pressure_ratio(unsigned long val)
-- 
cgit 


From 5a3cd99285dc793a4022fa75ceeb323eb6d29ac9 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Wed, 6 Nov 2013 09:54:52 -0500
Subject: iget/iget5: don't bother with ->i_lock until we find a match

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 Documentation/filesystems/porting           |  8 ++++++++
 drivers/staging/lustre/lustre/llite/namei.c |  2 +-
 fs/inode.c                                  | 20 ++++++--------------
 fs/ntfs/inode.c                             |  2 +-
 4 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting
index f0890581f7f6..fe2b7ae6f962 100644
--- a/Documentation/filesystems/porting
+++ b/Documentation/filesystems/porting
@@ -455,3 +455,11 @@ in your dentry operations instead.
 	vfs_follow_link has been removed.  Filesystems must use nd_set_link
 	from ->follow_link for normal symlinks, or nd_jump_link for magic
 	/proc/<pid> style links.
+--
+[mandatory]
+	iget5_locked()/ilookup5()/ilookup5_nowait() test() callback used to be
+	called with both ->i_lock and inode_hash_lock held; the former is *not*
+	taken anymore, so verify that your callbacks do not rely on it (none
+	of the in-tree instances did).  inode_hash_lock is still held,
+	of course, so they are still serialized wrt removal from inode hash,
+	as well as wrt set() callback of iget5_locked().
diff --git a/drivers/staging/lustre/lustre/llite/namei.c b/drivers/staging/lustre/lustre/llite/namei.c
index 34815b550e71..90bbdae824ac 100644
--- a/drivers/staging/lustre/lustre/llite/namei.c
+++ b/drivers/staging/lustre/lustre/llite/namei.c
@@ -83,7 +83,7 @@ int ll_unlock(__u32 mode, struct lustre_handle *lockh)
 }
 
 
-/* called from iget5_locked->find_inode() under inode_lock spinlock */
+/* called from iget5_locked->find_inode() under inode_hash_lock spinlock */
 static int ll_test_inode(struct inode *inode, void *opaque)
 {
 	struct ll_inode_info *lli = ll_i2info(inode);
diff --git a/fs/inode.c b/fs/inode.c
index b33ba8e021cc..bf7a8b3ab937 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -773,15 +773,11 @@ static struct inode *find_inode(struct super_block *sb,
 
 repeat:
 	hlist_for_each_entry(inode, head, i_hash) {
-		spin_lock(&inode->i_lock);
-		if (inode->i_sb != sb) {
-			spin_unlock(&inode->i_lock);
+		if (inode->i_sb != sb)
 			continue;
-		}
-		if (!test(inode, data)) {
-			spin_unlock(&inode->i_lock);
+		if (!test(inode, data))
 			continue;
-		}
+		spin_lock(&inode->i_lock);
 		if (inode->i_state & (I_FREEING|I_WILL_FREE)) {
 			__wait_on_freeing_inode(inode);
 			goto repeat;
@@ -804,15 +800,11 @@ static struct inode *find_inode_fast(struct super_block *sb,
 
 repeat:
 	hlist_for_each_entry(inode, head, i_hash) {
-		spin_lock(&inode->i_lock);
-		if (inode->i_ino != ino) {
-			spin_unlock(&inode->i_lock);
+		if (inode->i_ino != ino)
 			continue;
-		}
-		if (inode->i_sb != sb) {
-			spin_unlock(&inode->i_lock);
+		if (inode->i_sb != sb)
 			continue;
-		}
+		spin_lock(&inode->i_lock);
 		if (inode->i_state & (I_FREEING|I_WILL_FREE)) {
 			__wait_on_freeing_inode(inode);
 			goto repeat;
diff --git a/fs/ntfs/inode.c b/fs/ntfs/inode.c
index 2778b0255dc6..ffb9b3675736 100644
--- a/fs/ntfs/inode.c
+++ b/fs/ntfs/inode.c
@@ -55,7 +55,7 @@
  *
  * Return 1 if the attributes match and 0 if not.
  *
- * NOTE: This function runs with the inode->i_lock spin lock held so it is not
+ * NOTE: This function runs with the inode_hash_lock spin lock held so it is not
  * allowed to sleep.
  */
 int ntfs_test_inode(struct inode *vi, ntfs_attr *na)
-- 
cgit 


From b7a6ec52dd4eced4a9bcda9ca85b3c8af84d3c90 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Wed, 2 Oct 2013 17:01:18 -0400
Subject: vfs: split out vfs_getattr_nosec

The filehandle lookup code wants this version of getattr.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/stat.c          | 31 +++++++++++++++++++++++++------
 include/linux/fs.h |  1 +
 2 files changed, 26 insertions(+), 6 deletions(-)

diff --git a/fs/stat.c b/fs/stat.c
index d0ea7ef75e26..ae0c3cef9927 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -37,14 +37,21 @@ void generic_fillattr(struct inode *inode, struct kstat *stat)
 
 EXPORT_SYMBOL(generic_fillattr);
 
-int vfs_getattr(struct path *path, struct kstat *stat)
+/**
+ * vfs_getattr_nosec - getattr without security checks
+ * @path: file to get attributes from
+ * @stat: structure to return attributes in
+ *
+ * Get attributes without calling security_inode_getattr.
+ *
+ * Currently the only caller other than vfs_getattr is internal to the
+ * filehandle lookup code, which uses only the inode number and returns
+ * no attributes to any user.  Any other code probably wants
+ * vfs_getattr.
+ */
+int vfs_getattr_nosec(struct path *path, struct kstat *stat)
 {
 	struct inode *inode = path->dentry->d_inode;
-	int retval;
-
-	retval = security_inode_getattr(path->mnt, path->dentry);
-	if (retval)
-		return retval;
 
 	if (inode->i_op->getattr)
 		return inode->i_op->getattr(path->mnt, path->dentry, stat);
@@ -53,6 +60,18 @@ int vfs_getattr(struct path *path, struct kstat *stat)
 	return 0;
 }
 
+EXPORT_SYMBOL(vfs_getattr_nosec);
+
+int vfs_getattr(struct path *path, struct kstat *stat)
+{
+	int retval;
+
+	retval = security_inode_getattr(path->mnt, path->dentry);
+	if (retval)
+		return retval;
+	return vfs_getattr_nosec(path, stat);
+}
+
 EXPORT_SYMBOL(vfs_getattr);
 
 int vfs_fstat(unsigned int fd, struct kstat *stat)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index e190326ac212..5e44b0893db8 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2504,6 +2504,7 @@ extern const struct inode_operations page_symlink_inode_operations;
 extern void kfree_put_link(struct dentry *, struct nameidata *, void *);
 extern int generic_readlink(struct dentry *, char __user *, int);
 extern void generic_fillattr(struct inode *, struct kstat *);
+int vfs_getattr_nosec(struct path *path, struct kstat *stat);
 extern int vfs_getattr(struct path *, struct kstat *);
 void __inode_add_bytes(struct inode *inode, loff_t bytes);
 void inode_add_bytes(struct inode *inode, loff_t bytes);
-- 
cgit 


From 950ee9566a5b6cc45d15f5fe044bab4f1e8b62cb Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Tue, 10 Sep 2013 11:41:12 -0400
Subject: exportfs: fix 32-bit nfsd handling of 64-bit inode numbers

Symptoms were spurious -ENOENTs on stat of an NFS filesystem from a
32-bit NFS server exporting a very large XFS filesystem, when the
server's cache is cold (so the inodes in question are not in cache).

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reported-by: Trevor Cordes <trevor@tecnopolis.ca>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/exportfs/expfs.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index a235f0016889..c43fe9b39ff2 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -215,7 +215,7 @@ struct getdents_callback {
 	struct dir_context ctx;
 	char *name;		/* name that was found. It already points to a
 				   buffer NAME_MAX+1 is size */
-	unsigned long ino;	/* the inum we are looking for */
+	u64 ino;		/* the inum we are looking for */
 	int found;		/* inode matched? */
 	int sequence;		/* sequence counter */
 };
@@ -255,10 +255,14 @@ static int get_name(const struct path *path, char *name, struct dentry *child)
 	struct inode *dir = path->dentry->d_inode;
 	int error;
 	struct file *file;
+	struct kstat stat;
+	struct path child_path = {
+		.mnt = path->mnt,
+		.dentry = child,
+	};
 	struct getdents_callback buffer = {
 		.ctx.actor = filldir_one,
 		.name = name,
-		.ino = child->d_inode->i_ino
 	};
 
 	error = -ENOTDIR;
@@ -267,6 +271,16 @@ static int get_name(const struct path *path, char *name, struct dentry *child)
 	error = -EINVAL;
 	if (!dir->i_fop)
 		goto out;
+	/*
+	 * inode->i_ino is unsigned long, kstat->ino is u64, so the
+	 * former would be insufficient on 32-bit hosts when the
+	 * filesystem supports 64-bit inode numbers.  So we need to
+	 * actually call ->getattr, not just read i_ino:
+	 */
+	error = vfs_getattr_nosec(&child_path, &stat);
+	if (error)
+		return error;
+	buffer.ino = stat.ino;
 	/*
 	 * Open the directory ...
 	 */
-- 
cgit 


From fbad2bd13235067eef0b5b5e18b40e84ca425815 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 3 Nov 2013 19:46:35 -0500
Subject: qnx4: i_sb is never NULL

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/qnx4/namei.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/fs/qnx4/namei.c b/fs/qnx4/namei.c
index d024505ba007..e62c8183777a 100644
--- a/fs/qnx4/namei.c
+++ b/fs/qnx4/namei.c
@@ -60,10 +60,6 @@ static struct buffer_head *qnx4_find_entry(int len, struct inode *dir,
 	struct buffer_head *bh;
 
 	*res_dir = NULL;
-	if (!dir->i_sb) {
-		printk(KERN_WARNING "qnx4: no superblock on dir.\n");
-		return NULL;
-	}
 	bh = NULL;
 	block = offset = blkofs = 0;
 	while (blkofs * QNX4_BLOCK_SIZE + offset < dir->i_size) {
-- 
cgit 


From b19f13367454a57cd584031f0d52b05ac5ea97cd Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 3 Nov 2013 19:49:19 -0500
Subject: ocfs2: get rid of impossible checks

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/ocfs2/inode.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/fs/ocfs2/inode.c b/fs/ocfs2/inode.c
index f87f9bd1edff..f29a90fde619 100644
--- a/fs/ocfs2/inode.c
+++ b/fs/ocfs2/inode.c
@@ -386,19 +386,9 @@ static int ocfs2_read_locked_inode(struct inode *inode,
 	u32 generation = 0;
 
 	status = -EINVAL;
-	if (inode == NULL || inode->i_sb == NULL) {
-		mlog(ML_ERROR, "bad inode\n");
-		return status;
-	}
 	sb = inode->i_sb;
 	osb = OCFS2_SB(sb);
 
-	if (!args) {
-		mlog(ML_ERROR, "bad inode args\n");
-		make_bad_inode(inode);
-		return status;
-	}
-
 	/*
 	 * To improve performance of cold-cache inode stats, we take
 	 * the cluster lock here if possible.
-- 
cgit 


From 7632e465feb182cadc3c9aa1282a057201818a8c Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Thu, 28 Jun 2012 12:10:55 -0400
Subject: dcache: use IS_ROOT to decide where dentry is hashed

Every hashed dentry is either hashed in the dentry_hashtable, or a
superblock's s_anon list.

__d_drop() assumes it can determine which is the case by checking
DCACHE_DISCONNECTED; this is not true.

It is true that when DCACHE_DISCONNECTED is cleared, the dentry is not
only hashed on dentry_hashtable, but is fully connected to its parents
back to the root.

But the converse is *not* true: fs/exportfs/expfs.c:reconnect_path()
attempts to connect a directory (found by filehandle lookup) back to
root by ascending to parents and performing lookups one at a time.  It
does not clear DCACHE_DISCONNECTED until it's done, and that is not at
all an atomic process.

In particular, it is possible for DCACHE_DISCONNECTED to be set on a
dentry which is hashed on the dentry_hashtable.

Instead, use IS_ROOT() to check which hash chain a dentry is on.  This
*does* work:

Dentries are hashed only by:

	- d_obtain_alias, which adds an IS_ROOT() dentry to sb_anon.

	- __d_rehash, called by _d_rehash: hashes to the dentry's
	  parent, and all callers of _d_rehash appear to have d_parent
	  set to a "real" parent.
	- __d_rehash, called by __d_move: rehashes the moved dentry to
	  hash chain determined by target, and assigns target's d_parent
	  to its d_parent, before dropping the dentry's d_lock.

Therefore I believe it's safe for a holder of a dentry's d_lock to
assume that it is hashed on sb_anon if and only if IS_ROOT(dentry) is
true.

I believe the incorrect assumption about DCACHE_DISCONNECTED was
originally introduced by ceb5bdc2d246 "fs: dcache per-bucket dcache hash
locking".

Also add a comment while we're here.

Cc: Nick Piggin <npiggin@kernel.dk>
Acked-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: NeilBrown <neilb@suse.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/dcache.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/fs/dcache.c b/fs/dcache.c
index 525770e576db..c2add37082b6 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -503,7 +503,12 @@ void __d_drop(struct dentry *dentry)
 {
 	if (!d_unhashed(dentry)) {
 		struct hlist_bl_head *b;
-		if (unlikely(dentry->d_flags & DCACHE_DISCONNECTED))
+		/*
+		 * Hashed dentries are normally on the dentry hashtable,
+		 * with the exception of those newly allocated by
+		 * d_obtain_alias, which are always IS_ROOT:
+		 */
+		if (unlikely(IS_ROOT(dentry)))
 			b = &dentry->d_sb->s_anon;
 		else
 			b = d_hash(dentry->d_parent, dentry->d_name.hash);
-- 
cgit 


From e1a24bb0aa6abaa86b5a95638722ea2036dbaadd Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Fri, 29 Jun 2012 16:20:47 -0400
Subject: dcache: Don't set DISCONNECTED on "pseudo filesystem" dentries

I can't for the life of me see any reason why anyone should care whether
a dentry that is never hooked into the dentry cache would need
DCACHE_DISCONNECTED set.

This originates from 4b936885ab04dc6e0bb0ef35e0e23c1a7364d9e5 "fs:
improve scalability of pseudo filesystems", which probably just made the
false assumption the DCACHE_DISCONNECTED was meant to be set on anything
not connected to a parent somehow.

So this is just confusing.  Ideally the only uses of DCACHE_DISCONNECTED
would be in the filehandle-lookup code, which needs it to ensure
dentries are connected into the dentry tree before use.

I left d_alloc_pseudo there even though it's now equivalent to
__d_alloc(), just on the theory the name is better documentation of its
intended use outside dcache.c.

Cc: Nick Piggin <npiggin@kernel.dk>
Acked-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/dcache.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/fs/dcache.c b/fs/dcache.c
index c2add37082b6..67662beebc72 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -1607,12 +1607,17 @@ struct dentry *d_alloc(struct dentry * parent, const struct qstr *name)
 }
 EXPORT_SYMBOL(d_alloc);
 
+/**
+ * d_alloc_pseudo - allocate a dentry (for lookup-less filesystems)
+ * @sb: the superblock
+ * @name: qstr of the name
+ *
+ * For a filesystem that just pins its dentries in memory and never
+ * performs lookups at all, return an unhashed IS_ROOT dentry.
+ */
 struct dentry *d_alloc_pseudo(struct super_block *sb, const struct qstr *name)
 {
-	struct dentry *dentry = __d_alloc(sb, name);
-	if (dentry)
-		dentry->d_flags |= DCACHE_DISCONNECTED;
-	return dentry;
+	return __d_alloc(sb, name);
 }
 EXPORT_SYMBOL(d_alloc_pseudo);
 
-- 
cgit 


From f80de2cde10350b8d146e375ff8b634e72e6a827 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Wed, 18 Jul 2012 16:27:37 -0600
Subject: dcache: don't clear DCACHE_DISCONNECTED too early

DCACHE_DISCONNECTED should not be cleared until we're sure the dentry is
connected all the way up to the root of the filesystem.  It *shouldn't*
be cleared as soon as the dentry is connected to a parent.  That will
cause bugs at least on exportable filesystems.

Acked-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/dcache.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/dcache.c b/fs/dcache.c
index 67662beebc72..72c99b88d264 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -2757,7 +2757,6 @@ static void __d_materialise_dentry(struct dentry *dentry, struct dentry *anon)
 	spin_unlock(&dentry->d_lock);
 
 	/* anon->d_lock still locked, returns locked */
-	anon->d_flags &= ~DCACHE_DISCONNECTED;
 }
 
 /**
-- 
cgit 


From 13a2c3be03973d61b6cb89ff870e758c86327bb7 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Wed, 23 Oct 2013 16:09:16 -0400
Subject: dcache: fix outdated DCACHE_NEED_LOOKUP comment

The DCACHE_NEED_LOOKUP case referred to here was removed with
39e3c9553f34381a1b664c27b0c696a266a5735e "vfs: remove
DCACHE_NEED_LOOKUP".

There are only four real_lookup() callers and all of them pass in an
unhashed dentry just returned from d_alloc.

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/namei.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/namei.c b/fs/namei.c
index e1fa43346c61..2a5a7aa9f43f 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1298,8 +1298,8 @@ static struct dentry *lookup_dcache(struct qstr *name, struct dentry *dir,
 }
 
 /*
- * Call i_op->lookup on the dentry.  The dentry must be negative but may be
- * hashed if it was pouplated with DCACHE_NEED_LOOKUP.
+ * Call i_op->lookup on the dentry.  The dentry must be negative and
+ * unhashed.
  *
  * dir->d_inode->i_mutex must be held
  */
-- 
cgit 


From 854ff5caabb5974b7464b438aba0bc47f1b6cf34 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Wed, 16 Oct 2013 15:48:53 -0400
Subject: exportfs: BUG_ON in crazy corner case

This would indicate a nasty bug in the dcache and has never triggered in
the past 10 years as far as I know.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/exportfs/expfs.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index c43fe9b39ff2..6d0a7fa9abb3 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -112,18 +112,14 @@ reconnect_path(struct vfsmount *mnt, struct dentry *target_dir, char *nbuf)
 	while (target_dir->d_flags & DCACHE_DISCONNECTED && noprogress++ < 10) {
 		struct dentry *pd = find_disconnected_root(target_dir);
 
+		BUG_ON(pd == mnt->mnt_sb->s_root);
+
 		if (!IS_ROOT(pd)) {
 			/* must have found a connected parent - great */
 			spin_lock(&pd->d_lock);
 			pd->d_flags &= ~DCACHE_DISCONNECTED;
 			spin_unlock(&pd->d_lock);
 			noprogress = 0;
-		} else if (pd == mnt->mnt_sb->s_root) {
-			printk(KERN_ERR "export: Eeek filesystem root is not connected, impossible\n");
-			spin_lock(&pd->d_lock);
-			pd->d_flags &= ~DCACHE_DISCONNECTED;
-			spin_unlock(&pd->d_lock);
-			noprogress = 0;
 		} else {
 			/*
 			 * We have hit the top of a disconnected path, try to
-- 
cgit 


From 78cee9a8e4b42b3f585ea3bd1c076f5a76fee722 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Tue, 22 Oct 2013 20:59:19 -0400
Subject: exportfs: more detailed comment for path_reconnect

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/exportfs/expfs.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index 6d0a7fa9abb3..87e6dca69e43 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -93,7 +93,19 @@ find_disconnected_root(struct dentry *dentry)
 /*
  * Make sure target_dir is fully connected to the dentry tree.
  *
- * It may already be, as the flag isn't always updated when connection happens.
+ * On successful return, DCACHE_DISCONNECTED will be cleared on
+ * target_dir, and target_dir->d_parent->...->d_parent will reach the
+ * root of the filesystem.
+ *
+ * Whenever DCACHE_DISCONNECTED is unset, target_dir is fully connected.
+ * But the converse is not true: target_dir may have DCACHE_DISCONNECTED
+ * set but already be connected.  In that case we'll verify the
+ * connection to root and then clear the flag.
+ *
+ * Note that target_dir could be removed by a concurrent operation.  In
+ * that case reconnect_path may still succeed with target_dir fully
+ * connected, but further operations using the filehandle will fail when
+ * necessary (due to S_DEAD being set on the directory).
  */
 static int
 reconnect_path(struct vfsmount *mnt, struct dentry *target_dir, char *nbuf)
-- 
cgit 


From 0dbc018a490ed482a1236aad77ac12e20742b322 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Mon, 9 Sep 2013 16:15:13 -0400
Subject: exportfs: clear DISCONNECTED on all parents sooner

Once we've found any connected parent, we know all our parents are
connected--that's true even if there's a concurrent rename.  May as well
clear them all at once and be done with it.

Reviewed-by: Cristoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/exportfs/expfs.c | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index 87e6dca69e43..c65b748688ff 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -90,6 +90,24 @@ find_disconnected_root(struct dentry *dentry)
 	return dentry;
 }
 
+static void clear_disconnected(struct dentry *dentry)
+{
+	dget(dentry);
+	while (dentry->d_flags & DCACHE_DISCONNECTED) {
+		struct dentry *parent = dget_parent(dentry);
+
+		WARN_ON_ONCE(IS_ROOT(dentry));
+
+		spin_lock(&dentry->d_lock);
+		dentry->d_flags &= ~DCACHE_DISCONNECTED;
+		spin_unlock(&dentry->d_lock);
+
+		dput(dentry);
+		dentry = parent;
+	}
+	dput(dentry);
+}
+
 /*
  * Make sure target_dir is fully connected to the dentry tree.
  *
@@ -128,10 +146,9 @@ reconnect_path(struct vfsmount *mnt, struct dentry *target_dir, char *nbuf)
 
 		if (!IS_ROOT(pd)) {
 			/* must have found a connected parent - great */
-			spin_lock(&pd->d_lock);
-			pd->d_flags &= ~DCACHE_DISCONNECTED;
-			spin_unlock(&pd->d_lock);
-			noprogress = 0;
+			clear_disconnected(target_dir);
+			dput(pd);
+			break;
 		} else {
 			/*
 			 * We have hit the top of a disconnected path, try to
-- 
cgit 


From a056cc8934c7bd046dc44af559bba163115fde40 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Wed, 16 Oct 2013 21:09:30 -0400
Subject: exportfs: stop retrying once we race with rename/remove

There are two places here where we could race with a rename or remove:

	- We could find the parent, but then be removed or renamed away
	  from that parent directory before finding our name in that
	  directory.
	- We could find the parent, and find our name in that parent,
	  but then be renamed or removed before we look ourselves up by
	  that name in that parent.

In both cases the concurrent rename or remove will take care of
reconnecting the directory that we're currently examining.  Our target
directory should then also be connected.  Check this and clear
DISCONNECTED in these cases instead of looping around again.

Note: we *do* need to check that this actually happened if we want to be
robust in the face of corrupted filesystems: a corrupted filesystem
could just return a completely wrong parent, and we want to fail with an
error in that case before starting to clear DISCONNECTED on
non-DISCONNECTED filesystems.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/exportfs/expfs.c | 45 ++++++++++++++++++++++++++++++++++++++++-----
 1 file changed, 40 insertions(+), 5 deletions(-)

diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index c65b748688ff..6b5ddd5492bc 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -90,6 +90,23 @@ find_disconnected_root(struct dentry *dentry)
 	return dentry;
 }
 
+static bool dentry_connected(struct dentry *dentry)
+{
+	dget(dentry);
+	while (dentry->d_flags & DCACHE_DISCONNECTED) {
+		struct dentry *parent = dget_parent(dentry);
+
+		dput(dentry);
+		if (IS_ROOT(dentry)) {
+			dput(parent);
+			return false;
+		}
+		dentry = parent;
+	}
+	dput(dentry);
+	return true;
+}
+
 static void clear_disconnected(struct dentry *dentry)
 {
 	dget(dentry);
@@ -189,9 +206,9 @@ reconnect_path(struct vfsmount *mnt, struct dentry *target_dir, char *nbuf)
 				dput(pd);
 				if (err == -ENOENT)
 					/* some race between get_parent and
-					 * get_name?  just try again
+					 * get_name?
 					 */
-					continue;
+					goto out_reconnected;
 				break;
 			}
 			dprintk("%s: found name: %s\n", __func__, nbuf);
@@ -211,12 +228,12 @@ reconnect_path(struct vfsmount *mnt, struct dentry *target_dir, char *nbuf)
 			 * hopefully, npd == pd, though it isn't really
 			 * a problem if it isn't
 			 */
+			dput(npd);
+			dput(ppd);
 			if (npd == pd)
 				noprogress = 0;
 			else
-				printk("%s: npd != pd\n", __func__);
-			dput(npd);
-			dput(ppd);
+				goto out_reconnected;
 			if (IS_ROOT(pd)) {
 				/* something went wrong, we have to give up */
 				dput(pd);
@@ -233,6 +250,24 @@ reconnect_path(struct vfsmount *mnt, struct dentry *target_dir, char *nbuf)
 		return err;
 	}
 
+	return 0;
+out_reconnected:
+	/*
+	 * Someone must have renamed our entry into another parent, in
+	 * which case it has been reconnected by the rename.
+	 *
+	 * Or someone removed it entirely, in which case filehandle
+	 * lookup will succeed but the directory is now IS_DEAD and
+	 * subsequent operations on it will fail.
+	 *
+	 * Alternatively, maybe there was no race at all, and the
+	 * filesystem is just corrupt and gave us a parent that doesn't
+	 * actually contain any entry pointing to this inode.  So,
+	 * double check that this worked and return -ESTALE if not:
+	 */
+	if (!dentry_connected(target_dir))
+		return -ESTALE;
+	clear_disconnected(target_dir);
 	return 0;
 }
 
-- 
cgit 


From e4b70ebeeba954cb9cbcf0f19016bb9c2b8711c1 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Wed, 16 Oct 2013 21:20:19 -0400
Subject: exportfs: eliminate unused "noprogress" counter

Note this counter is now being set to 0 on every pass through the loop,
so it no longer serves any useful purpose.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/exportfs/expfs.c | 15 ++-------------
 1 file changed, 2 insertions(+), 13 deletions(-)

diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index 6b5ddd5492bc..d8ba88ac10e5 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -145,18 +145,9 @@ static void clear_disconnected(struct dentry *dentry)
 static int
 reconnect_path(struct vfsmount *mnt, struct dentry *target_dir, char *nbuf)
 {
-	int noprogress = 0;
 	int err = -ESTALE;
 
-	/*
-	 * It is possible that a confused file system might not let us complete
-	 * the path to the root.  For example, if get_parent returns a directory
-	 * in which we cannot find a name for the child.  While this implies a
-	 * very sick filesystem we don't want it to cause knfsd to spin.  Hence
-	 * the noprogress counter.  If we go through the loop 10 times (2 is
-	 * probably enough) without getting anywhere, we just give up
-	 */
-	while (target_dir->d_flags & DCACHE_DISCONNECTED && noprogress++ < 10) {
+	while (target_dir->d_flags & DCACHE_DISCONNECTED) {
 		struct dentry *pd = find_disconnected_root(target_dir);
 
 		BUG_ON(pd == mnt->mnt_sb->s_root);
@@ -230,9 +221,7 @@ reconnect_path(struct vfsmount *mnt, struct dentry *target_dir, char *nbuf)
 			 */
 			dput(npd);
 			dput(ppd);
-			if (npd == pd)
-				noprogress = 0;
-			else
+			if (npd != pd)
 				goto out_reconnected;
 			if (IS_ROOT(pd)) {
 				/* something went wrong, we have to give up */
-- 
cgit 


From bbf7a8a3562f2de49ce24db3be0f514459dd7f8b Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Thu, 17 Oct 2013 11:13:00 -0400
Subject: exportfs: move most of reconnect_path to helper function

Also replace 3 easily-confused three-letter acronyms by more helpful
variable names.

Just cleanup, no change in functionality, with one exception: the
dentry_connected() check in the "out_reconnected" case will now only
check the ancestors of the current dentry instead of checking all the
way from target_dir.  Since we've already verified connectivity up to
this dentry, that should be sufficient.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/exportfs/expfs.c | 164 +++++++++++++++++++++++++++-------------------------
 1 file changed, 86 insertions(+), 78 deletions(-)

diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index d8ba88ac10e5..d32ead9026f0 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -125,6 +125,86 @@ static void clear_disconnected(struct dentry *dentry)
 	dput(dentry);
 }
 
+/*
+ * Reconnect a directory dentry with its parent.
+ *
+ * This can return a dentry, or NULL, or an error.
+ *
+ * In the first case the returned dentry is the parent of the given
+ * dentry, and may itself need to be reconnected to its parent.
+ *
+ * In the NULL case, a concurrent VFS operation has either renamed or
+ * removed this directory.  The concurrent operation has reconnected our
+ * dentry, so we no longer need to.
+ */
+static struct dentry *reconnect_one(struct vfsmount *mnt,
+		struct dentry *dentry, char *nbuf)
+{
+	struct dentry *parent;
+	struct dentry *tmp;
+	int err;
+
+	parent = ERR_PTR(-EACCES);
+	mutex_lock(&dentry->d_inode->i_mutex);
+	if (mnt->mnt_sb->s_export_op->get_parent)
+		parent = mnt->mnt_sb->s_export_op->get_parent(dentry);
+	mutex_unlock(&dentry->d_inode->i_mutex);
+
+	if (IS_ERR(parent)) {
+		dprintk("%s: get_parent of %ld failed, err %d\n",
+			__func__, dentry->d_inode->i_ino, PTR_ERR(parent));
+		return parent;
+	}
+
+	dprintk("%s: find name of %lu in %lu\n", __func__,
+		dentry->d_inode->i_ino, parent->d_inode->i_ino);
+	err = exportfs_get_name(mnt, parent, nbuf, dentry);
+	if (err == -ENOENT)
+		goto out_reconnected;
+	if (err)
+		goto out_err;
+	dprintk("%s: found name: %s\n", __func__, nbuf);
+	mutex_lock(&parent->d_inode->i_mutex);
+	tmp = lookup_one_len(nbuf, parent, strlen(nbuf));
+	mutex_unlock(&parent->d_inode->i_mutex);
+	if (IS_ERR(tmp)) {
+		dprintk("%s: lookup failed: %d\n", __func__, PTR_ERR(tmp));
+		goto out_err;
+	}
+	if (tmp != dentry) {
+		dput(tmp);
+		goto out_reconnected;
+	}
+	dput(tmp);
+	if (IS_ROOT(dentry)) {
+		err = -ESTALE;
+		goto out_err;
+	}
+	return parent;
+
+out_err:
+	dput(parent);
+	return ERR_PTR(err);
+out_reconnected:
+	dput(parent);
+	/*
+	 * Someone must have renamed our entry into another parent, in
+	 * which case it has been reconnected by the rename.
+	 *
+	 * Or someone removed it entirely, in which case filehandle
+	 * lookup will succeed but the directory is now IS_DEAD and
+	 * subsequent operations on it will fail.
+	 *
+	 * Alternatively, maybe there was no race at all, and the
+	 * filesystem is just corrupt and gave us a parent that doesn't
+	 * actually contain any entry pointing to this inode.  So,
+	 * double check that this worked and return -ESTALE if not:
+	 */
+	if (!dentry_connected(dentry))
+		return ERR_PTR(-ESTALE);
+	return NULL;
+}
+
 /*
  * Make sure target_dir is fully connected to the dentry tree.
  *
@@ -158,76 +238,19 @@ reconnect_path(struct vfsmount *mnt, struct dentry *target_dir, char *nbuf)
 			dput(pd);
 			break;
 		} else {
+			struct dentry *parent;
 			/*
 			 * We have hit the top of a disconnected path, try to
 			 * find parent and connect.
-			 *
-			 * Racing with some other process renaming a directory
-			 * isn't much of a problem here.  If someone renames
-			 * the directory, it will end up properly connected,
-			 * which is what we want
-			 *
-			 * Getting the parent can't be supported generically,
-			 * the locking is too icky.
-			 *
-			 * Instead we just return EACCES.  If server reboots
-			 * or inodes get flushed, you lose
-			 */
-			struct dentry *ppd = ERR_PTR(-EACCES);
-			struct dentry *npd;
-
-			mutex_lock(&pd->d_inode->i_mutex);
-			if (mnt->mnt_sb->s_export_op->get_parent)
-				ppd = mnt->mnt_sb->s_export_op->get_parent(pd);
-			mutex_unlock(&pd->d_inode->i_mutex);
-
-			if (IS_ERR(ppd)) {
-				err = PTR_ERR(ppd);
-				dprintk("%s: get_parent of %ld failed, err %d\n",
-					__func__, pd->d_inode->i_ino, err);
-				dput(pd);
-				break;
-			}
-
-			dprintk("%s: find name of %lu in %lu\n", __func__,
-				pd->d_inode->i_ino, ppd->d_inode->i_ino);
-			err = exportfs_get_name(mnt, ppd, nbuf, pd);
-			if (err) {
-				dput(ppd);
-				dput(pd);
-				if (err == -ENOENT)
-					/* some race between get_parent and
-					 * get_name?
-					 */
-					goto out_reconnected;
-				break;
-			}
-			dprintk("%s: found name: %s\n", __func__, nbuf);
-			mutex_lock(&ppd->d_inode->i_mutex);
-			npd = lookup_one_len(nbuf, ppd, strlen(nbuf));
-			mutex_unlock(&ppd->d_inode->i_mutex);
-			if (IS_ERR(npd)) {
-				err = PTR_ERR(npd);
-				dprintk("%s: lookup failed: %d\n",
-					__func__, err);
-				dput(ppd);
-				dput(pd);
-				break;
-			}
-			/* we didn't really want npd, we really wanted
-			 * a side-effect of the lookup.
-			 * hopefully, npd == pd, though it isn't really
-			 * a problem if it isn't
 			 */
-			dput(npd);
-			dput(ppd);
-			if (npd != pd)
+			 parent = reconnect_one(mnt, pd, nbuf);
+			 if (!parent)
 				goto out_reconnected;
-			if (IS_ROOT(pd)) {
-				/* something went wrong, we have to give up */
-				dput(pd);
+			if (IS_ERR(parent)) {
+				err = PTR_ERR(parent);
 				break;
 			}
+			dput(parent);
 		}
 		dput(pd);
 	}
@@ -241,21 +264,6 @@ reconnect_path(struct vfsmount *mnt, struct dentry *target_dir, char *nbuf)
 
 	return 0;
 out_reconnected:
-	/*
-	 * Someone must have renamed our entry into another parent, in
-	 * which case it has been reconnected by the rename.
-	 *
-	 * Or someone removed it entirely, in which case filehandle
-	 * lookup will succeed but the directory is now IS_DEAD and
-	 * subsequent operations on it will fail.
-	 *
-	 * Alternatively, maybe there was no race at all, and the
-	 * filesystem is just corrupt and gave us a parent that doesn't
-	 * actually contain any entry pointing to this inode.  So,
-	 * double check that this worked and return -ESTALE if not:
-	 */
-	if (!dentry_connected(target_dir))
-		return -ESTALE;
 	clear_disconnected(target_dir);
 	return 0;
 }
-- 
cgit 


From efbf201f7a0be7ffc6532e672fbccb0eed4f5de0 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Thu, 17 Oct 2013 21:42:35 -0400
Subject: exportfs: better variable name

Replace another unhelpful acronym.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/exportfs/expfs.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index d32ead9026f0..b33b9c4deea0 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -228,14 +228,14 @@ reconnect_path(struct vfsmount *mnt, struct dentry *target_dir, char *nbuf)
 	int err = -ESTALE;
 
 	while (target_dir->d_flags & DCACHE_DISCONNECTED) {
-		struct dentry *pd = find_disconnected_root(target_dir);
+		struct dentry *dentry = find_disconnected_root(target_dir);
 
-		BUG_ON(pd == mnt->mnt_sb->s_root);
+		BUG_ON(dentry == mnt->mnt_sb->s_root);
 
-		if (!IS_ROOT(pd)) {
+		if (!IS_ROOT(dentry)) {
 			/* must have found a connected parent - great */
 			clear_disconnected(target_dir);
-			dput(pd);
+			dput(dentry);
 			break;
 		} else {
 			struct dentry *parent;
@@ -243,7 +243,7 @@ reconnect_path(struct vfsmount *mnt, struct dentry *target_dir, char *nbuf)
 			 * We have hit the top of a disconnected path, try to
 			 * find parent and connect.
 			 */
-			 parent = reconnect_one(mnt, pd, nbuf);
+			 parent = reconnect_one(mnt, dentry, nbuf);
 			 if (!parent)
 				goto out_reconnected;
 			if (IS_ERR(parent)) {
@@ -252,7 +252,7 @@ reconnect_path(struct vfsmount *mnt, struct dentry *target_dir, char *nbuf)
 			}
 			dput(parent);
 		}
-		dput(pd);
+		dput(dentry);
 	}
 
 	if (target_dir->d_flags & DCACHE_DISCONNECTED) {
-- 
cgit 


From f27c9298fd717e1f7e63e314a7a85a3a7e77139d Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Thu, 17 Oct 2013 21:34:21 -0400
Subject: exportfs: fix quadratic behavior in filehandle lookup

Suppose we're given the filehandle for a directory whose closest
ancestor in the dcache is its Nth ancestor.

The main loop in reconnect_path searches for an IS_ROOT ancestor of
target_dir, reconnects that ancestor to its parent, then recommences the
search for an IS_ROOT ancestor from target_dir.

This behavior is quadratic in N.  And there's really no need to restart
the search from target_dir each time: once a directory has been looked
up, it won't become IS_ROOT again.  So instead of starting from
target_dir each time, we can continue where we left off.

This simplifies the code and improves performance on very deep directory
heirachies.  (I can't think of any reason anyone should need heirarchies
a hundred or more deep, but the performance improvement may be valuable
if only to limit damage in case of abuse.)

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/exportfs/expfs.c | 66 +++++++++++------------------------------------------
 1 file changed, 13 insertions(+), 53 deletions(-)

diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index b33b9c4deea0..48a359dd286e 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -69,27 +69,6 @@ find_acceptable_alias(struct dentry *result,
 	return NULL;
 }
 
-/*
- * Find root of a disconnected subtree and return a reference to it.
- */
-static struct dentry *
-find_disconnected_root(struct dentry *dentry)
-{
-	dget(dentry);
-	while (!IS_ROOT(dentry)) {
-		struct dentry *parent = dget_parent(dentry);
-
-		if (!(parent->d_flags & DCACHE_DISCONNECTED)) {
-			dput(parent);
-			break;
-		}
-
-		dput(dentry);
-		dentry = parent;
-	}
-	return dentry;
-}
-
 static bool dentry_connected(struct dentry *dentry)
 {
 	dget(dentry);
@@ -225,45 +204,26 @@ out_reconnected:
 static int
 reconnect_path(struct vfsmount *mnt, struct dentry *target_dir, char *nbuf)
 {
-	int err = -ESTALE;
+	struct dentry *dentry, *parent;
 
-	while (target_dir->d_flags & DCACHE_DISCONNECTED) {
-		struct dentry *dentry = find_disconnected_root(target_dir);
+	dentry = dget(target_dir);
 
+	while (dentry->d_flags & DCACHE_DISCONNECTED) {
 		BUG_ON(dentry == mnt->mnt_sb->s_root);
 
-		if (!IS_ROOT(dentry)) {
-			/* must have found a connected parent - great */
-			clear_disconnected(target_dir);
-			dput(dentry);
+		if (IS_ROOT(dentry))
+			parent = reconnect_one(mnt, dentry, nbuf);
+		else
+			parent = dget_parent(dentry);
+
+		if (!parent)
 			break;
-		} else {
-			struct dentry *parent;
-			/*
-			 * We have hit the top of a disconnected path, try to
-			 * find parent and connect.
-			 */
-			 parent = reconnect_one(mnt, dentry, nbuf);
-			 if (!parent)
-				goto out_reconnected;
-			if (IS_ERR(parent)) {
-				err = PTR_ERR(parent);
-				break;
-			}
-			dput(parent);
-		}
 		dput(dentry);
+		if (IS_ERR(parent))
+			return PTR_ERR(parent);
+		dentry = parent;
 	}
-
-	if (target_dir->d_flags & DCACHE_DISCONNECTED) {
-		/* something went wrong - oh-well */
-		if (!err)
-			err = -ESTALE;
-		return err;
-	}
-
-	return 0;
-out_reconnected:
+	dput(dentry);
 	clear_disconnected(target_dir);
 	return 0;
 }
-- 
cgit 


From 375e289ea85166c5241c570940e7e7e966c63a9f Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Wed, 18 Apr 2012 15:16:33 -0400
Subject: vfs: pull ext4's double-i_mutex-locking into common code

We want to do this elsewhere as well.

Also catch any attempts to use it for directories (where this ordering
would conflict with ancestor-first directory ordering in lock_rename).

Cc: Andreas Dilger <adilger.kernel@dilger.ca>
Cc: Dave Chinner <david@fromorbit.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Acked-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/ext4/ext4.h        |  2 --
 fs/ext4/ioctl.c       |  4 ++--
 fs/ext4/move_extent.c | 40 ++--------------------------------------
 fs/inode.c            | 36 ++++++++++++++++++++++++++++++++++++
 include/linux/fs.h    |  3 +++
 5 files changed, 43 insertions(+), 42 deletions(-)

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index af815ea9d7cc..d01d62315f7e 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -2734,8 +2734,6 @@ extern void ext4_double_down_write_data_sem(struct inode *first,
 					    struct inode *second);
 extern void ext4_double_up_write_data_sem(struct inode *orig_inode,
 					  struct inode *donor_inode);
-void ext4_inode_double_lock(struct inode *inode1, struct inode *inode2);
-void ext4_inode_double_unlock(struct inode *inode1, struct inode *inode2);
 extern int ext4_move_extents(struct file *o_filp, struct file *d_filp,
 			     __u64 start_orig, __u64 start_donor,
 			     __u64 len, __u64 *moved_len);
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index a569d335f804..60589b60e9b0 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -130,7 +130,7 @@ static long swap_inode_boot_loader(struct super_block *sb,
 
 	/* Protect orig inodes against a truncate and make sure,
 	 * that only 1 swap_inode_boot_loader is running. */
-	ext4_inode_double_lock(inode, inode_bl);
+	lock_two_nondirectories(inode, inode_bl);
 
 	truncate_inode_pages(&inode->i_data, 0);
 	truncate_inode_pages(&inode_bl->i_data, 0);
@@ -205,7 +205,7 @@ static long swap_inode_boot_loader(struct super_block *sb,
 	ext4_inode_resume_unlocked_dio(inode);
 	ext4_inode_resume_unlocked_dio(inode_bl);
 
-	ext4_inode_double_unlock(inode, inode_bl);
+	unlock_two_nondirectories(inode, inode_bl);
 
 	iput(inode_bl);
 
diff --git a/fs/ext4/move_extent.c b/fs/ext4/move_extent.c
index 7fa4d855dbd5..773b503bd18c 100644
--- a/fs/ext4/move_extent.c
+++ b/fs/ext4/move_extent.c
@@ -1202,42 +1202,6 @@ mext_check_arguments(struct inode *orig_inode,
 	return 0;
 }
 
-/**
- * ext4_inode_double_lock - Lock i_mutex on both @inode1 and @inode2
- *
- * @inode1:	the inode structure
- * @inode2:	the inode structure
- *
- * Lock two inodes' i_mutex
- */
-void
-ext4_inode_double_lock(struct inode *inode1, struct inode *inode2)
-{
-	BUG_ON(inode1 == inode2);
-	if (inode1 < inode2) {
-		mutex_lock_nested(&inode1->i_mutex, I_MUTEX_PARENT);
-		mutex_lock_nested(&inode2->i_mutex, I_MUTEX_CHILD);
-	} else {
-		mutex_lock_nested(&inode2->i_mutex, I_MUTEX_PARENT);
-		mutex_lock_nested(&inode1->i_mutex, I_MUTEX_CHILD);
-	}
-}
-
-/**
- * ext4_inode_double_unlock - Release i_mutex on both @inode1 and @inode2
- *
- * @inode1:     the inode that is released first
- * @inode2:     the inode that is released second
- *
- */
-
-void
-ext4_inode_double_unlock(struct inode *inode1, struct inode *inode2)
-{
-	mutex_unlock(&inode1->i_mutex);
-	mutex_unlock(&inode2->i_mutex);
-}
-
 /**
  * ext4_move_extents - Exchange the specified range of a file
  *
@@ -1327,7 +1291,7 @@ ext4_move_extents(struct file *o_filp, struct file *d_filp,
 		return -EINVAL;
 	}
 	/* Protect orig and donor inodes against a truncate */
-	ext4_inode_double_lock(orig_inode, donor_inode);
+	lock_two_nondirectories(orig_inode, donor_inode);
 
 	/* Wait for all existing dio workers */
 	ext4_inode_block_unlocked_dio(orig_inode);
@@ -1535,7 +1499,7 @@ out:
 	ext4_double_up_write_data_sem(orig_inode, donor_inode);
 	ext4_inode_resume_unlocked_dio(orig_inode);
 	ext4_inode_resume_unlocked_dio(donor_inode);
-	ext4_inode_double_unlock(orig_inode, donor_inode);
+	unlock_two_nondirectories(orig_inode, donor_inode);
 
 	return ret;
 }
diff --git a/fs/inode.c b/fs/inode.c
index bf7a8b3ab937..ef25afdf3906 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -942,6 +942,42 @@ void unlock_new_inode(struct inode *inode)
 }
 EXPORT_SYMBOL(unlock_new_inode);
 
+/**
+ * lock_two_nondirectories - take two i_mutexes on non-directory objects
+ * @inode1: first inode to lock
+ * @inode2: second inode to lock
+ */
+void lock_two_nondirectories(struct inode *inode1, struct inode *inode2)
+{
+	WARN_ON_ONCE(S_ISDIR(inode1->i_mode));
+	if (inode1 == inode2 || !inode2) {
+		mutex_lock_nested(&inode1->i_mutex, I_MUTEX_PARENT);
+		return;
+	}
+	WARN_ON_ONCE(S_ISDIR(inode2->i_mode));
+	if (inode1 < inode2) {
+		mutex_lock_nested(&inode1->i_mutex, I_MUTEX_PARENT);
+		mutex_lock_nested(&inode2->i_mutex, I_MUTEX_CHILD);
+	} else {
+		mutex_lock_nested(&inode2->i_mutex, I_MUTEX_PARENT);
+		mutex_lock_nested(&inode1->i_mutex, I_MUTEX_CHILD);
+	}
+}
+EXPORT_SYMBOL(lock_two_nondirectories);
+
+/**
+ * unlock_two_nondirectories - release locks from lock_two_nondirectories()
+ * @inode1: first inode to unlock
+ * @inode2: second inode to unlock
+ */
+void unlock_two_nondirectories(struct inode *inode1, struct inode *inode2)
+{
+	mutex_unlock(&inode1->i_mutex);
+	if (inode2 && inode2 != inode1)
+		mutex_unlock(&inode2->i_mutex);
+}
+EXPORT_SYMBOL(unlock_two_nondirectories);
+
 /**
  * iget5_locked - obtain an inode from a mounted file system
  * @sb:		super block of file system
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 5e44b0893db8..4e1a0b41f966 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -637,6 +637,9 @@ enum inode_i_mutex_lock_class
 	I_MUTEX_QUOTA
 };
 
+void lock_two_nondirectories(struct inode *, struct inode*);
+void unlock_two_nondirectories(struct inode *, struct inode*);
+
 /*
  * NOTE: in a 32bit arch with a preemptable kernel and
  * an UP compile the i_size_read/write must be atomic
-- 
cgit 


From 275555163e3ac09c016c964a10e0f389cf152c4c Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Wed, 25 Apr 2012 07:19:52 -0400
Subject: vfs: don't use PARENT/CHILD lock classes for non-directories

Reserve I_MUTEX_PARENT and I_MUTEX_CHILD for locking of actual
directories.

(Also I_MUTEX_QUOTA isn't really a meaningful name for this locking
class any more; fixed in a later patch.)

Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/inode.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/inode.c b/fs/inode.c
index ef25afdf3906..51f329b98aa4 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -951,16 +951,16 @@ void lock_two_nondirectories(struct inode *inode1, struct inode *inode2)
 {
 	WARN_ON_ONCE(S_ISDIR(inode1->i_mode));
 	if (inode1 == inode2 || !inode2) {
-		mutex_lock_nested(&inode1->i_mutex, I_MUTEX_PARENT);
+		mutex_lock(&inode1->i_mutex);
 		return;
 	}
 	WARN_ON_ONCE(S_ISDIR(inode2->i_mode));
 	if (inode1 < inode2) {
-		mutex_lock_nested(&inode1->i_mutex, I_MUTEX_PARENT);
-		mutex_lock_nested(&inode2->i_mutex, I_MUTEX_CHILD);
+		mutex_lock(&inode1->i_mutex);
+		mutex_lock_nested(&inode2->i_mutex, I_MUTEX_QUOTA);
 	} else {
-		mutex_lock_nested(&inode2->i_mutex, I_MUTEX_PARENT);
-		mutex_lock_nested(&inode1->i_mutex, I_MUTEX_CHILD);
+		mutex_lock(&inode2->i_mutex);
+		mutex_lock_nested(&inode1->i_mutex, I_MUTEX_QUOTA);
 	}
 }
 EXPORT_SYMBOL(lock_two_nondirectories);
-- 
cgit 


From 40bd22c9f8617ddd5da06044c81f72a2cf700791 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Wed, 18 Apr 2012 15:21:34 -0400
Subject: vfs: rename I_MUTEX_QUOTA now that it's not used for quotas

I_MUTEX_QUOTA is now just being used whenever we want to lock two
non-directories.  So the name isn't right.  I_MUTEX_NONDIR2 isn't
especially elegant but it's the best I could think of.

Also fix some outdated documentation.

Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/inode.c         | 4 ++--
 include/linux/fs.h | 9 ++++++---
 2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/fs/inode.c b/fs/inode.c
index 51f329b98aa4..ce48c359ce9e 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -957,10 +957,10 @@ void lock_two_nondirectories(struct inode *inode1, struct inode *inode2)
 	WARN_ON_ONCE(S_ISDIR(inode2->i_mode));
 	if (inode1 < inode2) {
 		mutex_lock(&inode1->i_mutex);
-		mutex_lock_nested(&inode2->i_mutex, I_MUTEX_QUOTA);
+		mutex_lock_nested(&inode2->i_mutex, I_MUTEX_NONDIR2);
 	} else {
 		mutex_lock(&inode2->i_mutex);
-		mutex_lock_nested(&inode1->i_mutex, I_MUTEX_QUOTA);
+		mutex_lock_nested(&inode1->i_mutex, I_MUTEX_NONDIR2);
 	}
 }
 EXPORT_SYMBOL(lock_two_nondirectories);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 4e1a0b41f966..ed7f94af1ab2 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -623,10 +623,13 @@ static inline int inode_unhashed(struct inode *inode)
  * 0: the object of the current VFS operation
  * 1: parent
  * 2: child/target
- * 3: quota file
+ * 3: xattr
+ * 4: second non-directory
+ * The last is for certain operations (such as rename) which lock two
+ * non-directories at once.
  *
  * The locking order between these classes is
- * parent -> child -> normal -> xattr -> quota
+ * parent -> child -> normal -> xattr -> second non-directory
  */
 enum inode_i_mutex_lock_class
 {
@@ -634,7 +637,7 @@ enum inode_i_mutex_lock_class
 	I_MUTEX_PARENT,
 	I_MUTEX_CHILD,
 	I_MUTEX_XATTR,
-	I_MUTEX_QUOTA
+	I_MUTEX_NONDIR2
 };
 
 void lock_two_nondirectories(struct inode *, struct inode*);
-- 
cgit 


From 6cedba8962f440c72447f811d0d530a8a9dc637a Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Mon, 5 Mar 2012 11:40:41 -0500
Subject: vfs: take i_mutex on renamed file

A read delegation is used by NFSv4 as a guarantee that a client can
perform local read opens without informing the server.

The open operation takes the last component of the pathname as an
argument, thus is also a lookup operation, and giving the client the
above guarantee means informing the client before we allow anything that
would change the set of names pointing to the inode.

Therefore, we need to break delegations on rename, link, and unlink.

We also need to prevent new delegations from being acquired while one of
these operations is in progress.

We could add some completely new locking for that purpose, but it's
simpler to use the i_mutex, since that's already taken by all the
operations we care about.

The single exception is rename.  So, modify rename to take the i_mutex
on the file that is being renamed.

Also fix up lockdep and Documentation/filesystems/directory-locking to
reflect the change.

Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 Documentation/filesystems/directory-locking | 31 ++++++++++++++++++++---------
 fs/namei.c                                  | 10 +++++-----
 2 files changed, 27 insertions(+), 14 deletions(-)

diff --git a/Documentation/filesystems/directory-locking b/Documentation/filesystems/directory-locking
index ff7b611abf33..09bbf9a54f80 100644
--- a/Documentation/filesystems/directory-locking
+++ b/Documentation/filesystems/directory-locking
@@ -2,6 +2,10 @@
 kinds of locks - per-inode (->i_mutex) and per-filesystem
 (->s_vfs_rename_mutex).
 
+	When taking the i_mutex on multiple non-directory objects, we
+always acquire the locks in order by increasing address.  We'll call
+that "inode pointer" order in the following.
+
 	For our purposes all operations fall in 5 classes:
 
 1) read access.  Locking rules: caller locks directory we are accessing.
@@ -12,8 +16,9 @@ kinds of locks - per-inode (->i_mutex) and per-filesystem
 locks victim and calls the method.
 
 4) rename() that is _not_ cross-directory.  Locking rules: caller locks
-the parent, finds source and target, if target already exists - locks it
-and then calls the method.
+the parent and finds source and target.  If target already exists, lock
+it.  If source is a non-directory, lock it.  If that means we need to
+lock both, lock them in inode pointer order.
 
 5) link creation.  Locking rules:
 	* lock parent
@@ -30,7 +35,9 @@ rules:
 		fail with -ENOTEMPTY
 	* if new parent is equal to or is a descendent of source
 		fail with -ELOOP
-	* if target exists - lock it.
+	* If target exists, lock it.  If source is a non-directory, lock
+	  it.  In case that means we need to lock both source and target,
+	  do so in inode pointer order.
 	* call the method.
 
 
@@ -56,9 +63,11 @@ objects - A < B iff A is an ancestor of B.
     renames will be blocked on filesystem lock and we don't start changing
     the order until we had acquired all locks).
 
-(3) any operation holds at most one lock on non-directory object and
-    that lock is acquired after all other locks.  (Proof: see descriptions
-    of operations).
+(3) locks on non-directory objects are acquired only after locks on
+    directory objects, and are acquired in inode pointer order.
+    (Proof: all operations but renames take lock on at most one
+    non-directory object, except renames, which take locks on source and
+    target in inode pointer order in the case they are not directories.)
 
 	Now consider the minimal deadlock.  Each process is blocked on
 attempt to acquire some lock and already holds at least one lock.  Let's
@@ -66,9 +75,13 @@ consider the set of contended locks.  First of all, filesystem lock is
 not contended, since any process blocked on it is not holding any locks.
 Thus all processes are blocked on ->i_mutex.
 
-	Non-directory objects are not contended due to (3).  Thus link
-creation can't be a part of deadlock - it can't be blocked on source
-and it means that it doesn't hold any locks.
+	By (3), any process holding a non-directory lock can only be
+waiting on another non-directory lock with a larger address.  Therefore
+the process holding the "largest" such lock can always make progress, and
+non-directory objects are not included in the set of contended locks.
+
+	Thus link creation can't be a part of deadlock - it can't be
+blocked on source and it means that it doesn't hold any locks.
 
 	Any contended object is either held by cross-directory rename or
 has a child that is also contended.  Indeed, suppose that it is held by
diff --git a/fs/namei.c b/fs/namei.c
index 2a5a7aa9f43f..88cec0330bf7 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3918,7 +3918,8 @@ SYSCALL_DEFINE2(link, const char __user *, oldname, const char __user *, newname
  *	   That's where 4.4 screws up. Current fix: serialization on
  *	   sb->s_vfs_rename_mutex. We might be more accurate, but that's another
  *	   story.
- *	c) we have to lock _three_ objects - parents and victim (if it exists).
+ *	c) we have to lock _four_ objects - parents and victim (if it exists),
+ *	   and source (if it is not a directory).
  *	   And that - after we got ->i_mutex on parents (until then we don't know
  *	   whether the target exists).  Solution: try to be smart with locking
  *	   order for inodes.  We rely on the fact that tree topology may change
@@ -3994,6 +3995,7 @@ static int vfs_rename_other(struct inode *old_dir, struct dentry *old_dentry,
 			    struct inode *new_dir, struct dentry *new_dentry)
 {
 	struct inode *target = new_dentry->d_inode;
+	struct inode *source = old_dentry->d_inode;
 	int error;
 
 	error = security_inode_rename(old_dir, old_dentry, new_dir, new_dentry);
@@ -4001,8 +4003,7 @@ static int vfs_rename_other(struct inode *old_dir, struct dentry *old_dentry,
 		return error;
 
 	dget(new_dentry);
-	if (target)
-		mutex_lock(&target->i_mutex);
+	lock_two_nondirectories(source, target);
 
 	error = -EBUSY;
 	if (d_mountpoint(old_dentry)||d_mountpoint(new_dentry))
@@ -4017,8 +4018,7 @@ static int vfs_rename_other(struct inode *old_dir, struct dentry *old_dentry,
 	if (!(old_dir->i_sb->s_type->fs_flags & FS_RENAME_DOES_D_MOVE))
 		d_move(old_dentry, new_dentry);
 out:
-	if (target)
-		mutex_unlock(&target->i_mutex);
+	unlock_two_nondirectories(source, target);
 	dput(new_dentry);
 	return error;
 }
-- 
cgit 


From 617588d5186c887eb94321b021bb5a46f896f4b3 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Fri, 1 Jul 2011 15:18:34 -0400
Subject: locks: introduce new FL_DELEG lock flag

For now FL_DELEG is just a synonym for FL_LEASE.  So this patch doesn't
change behavior.

Next we'll modify break_lease to treat FL_DELEG leases differently, to
account for the fact that NFSv4 delegations should be broken in more
situations than Windows oplocks.

Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/locks.c          | 2 +-
 fs/nfsd/nfs4state.c | 2 +-
 include/linux/fs.h  | 1 +
 3 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/locks.c b/fs/locks.c
index f155ffd648bb..079abcd8a836 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -134,7 +134,7 @@
 
 #define IS_POSIX(fl)	(fl->fl_flags & FL_POSIX)
 #define IS_FLOCK(fl)	(fl->fl_flags & FL_FLOCK)
-#define IS_LEASE(fl)	(fl->fl_flags & FL_LEASE)
+#define IS_LEASE(fl)	(fl->fl_flags & (FL_LEASE|FL_DELEG))
 
 static bool lease_breaking(struct file_lock *fl)
 {
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index a601fd49f997..f36a30a9f2d1 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -3008,7 +3008,7 @@ static struct file_lock *nfs4_alloc_init_lease(struct nfs4_delegation *dp, int f
 		return NULL;
 	locks_init_lock(fl);
 	fl->fl_lmops = &nfsd_lease_mng_ops;
-	fl->fl_flags = FL_LEASE;
+	fl->fl_flags = FL_DELEG;
 	fl->fl_type = flag == NFS4_OPEN_DELEGATE_READ? F_RDLCK: F_WRLCK;
 	fl->fl_end = OFFSET_MAX;
 	fl->fl_owner = (fl_owner_t)(dp->dl_file);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index ed7f94af1ab2..129e150f9e94 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -880,6 +880,7 @@ static inline int file_check_writeable(struct file *filp)
 
 #define FL_POSIX	1
 #define FL_FLOCK	2
+#define FL_DELEG	4	/* NFSv4 delegation */
 #define FL_ACCESS	8	/* not trying to lock, just looking */
 #define FL_EXISTS	16	/* when unlocking, test for existence */
 #define FL_LEASE	32	/* lease held on this file */
-- 
cgit 


From df4e8d2c1d2bbbbace706bfe5417320c9e3fbee3 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Mon, 5 Mar 2012 13:18:59 -0500
Subject: locks: implement delegations

Implement NFSv4 delegations at the vfs level using the new FL_DELEG lock
type.

Note nfsd is the only delegation user and is only using read
delegations.  Warn on any attempt to set a write delegation for now.
We'll come back to that case later.

Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/locks.c         | 55 ++++++++++++++++++++++++++++++++++++++++++++----------
 include/linux/fs.h | 18 +++++++++++++++---
 2 files changed, 60 insertions(+), 13 deletions(-)

diff --git a/fs/locks.c b/fs/locks.c
index 079abcd8a836..f99d52bdd05a 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1292,28 +1292,40 @@ static void time_out_leases(struct inode *inode)
 	}
 }
 
+static bool leases_conflict(struct file_lock *lease, struct file_lock *breaker)
+{
+	if ((breaker->fl_flags & FL_DELEG) && (lease->fl_flags & FL_LEASE))
+		return false;
+	return locks_conflict(breaker, lease);
+}
+
 /**
  *	__break_lease	-	revoke all outstanding leases on file
  *	@inode: the inode of the file to return
- *	@mode: the open mode (read or write)
+ *	@mode: O_RDONLY: break only write leases; O_WRONLY or O_RDWR:
+ *	    break all leases
+ *	@type: FL_LEASE: break leases and delegations; FL_DELEG: break
+ *	    only delegations
  *
  *	break_lease (inlined for speed) has checked there already is at least
  *	some kind of lock (maybe a lease) on this file.  Leases are broken on
  *	a call to open() or truncate().  This function can sleep unless you
  *	specified %O_NONBLOCK to your open().
  */
-int __break_lease(struct inode *inode, unsigned int mode)
+int __break_lease(struct inode *inode, unsigned int mode, unsigned int type)
 {
 	int error = 0;
 	struct file_lock *new_fl, *flock;
 	struct file_lock *fl;
 	unsigned long break_time;
 	int i_have_this_lease = 0;
+	bool lease_conflict = false;
 	int want_write = (mode & O_ACCMODE) != O_RDONLY;
 
 	new_fl = lease_alloc(NULL, want_write ? F_WRLCK : F_RDLCK);
 	if (IS_ERR(new_fl))
 		return PTR_ERR(new_fl);
+	new_fl->fl_flags = type;
 
 	spin_lock(&inode->i_lock);
 
@@ -1323,13 +1335,16 @@ int __break_lease(struct inode *inode, unsigned int mode)
 	if ((flock == NULL) || !IS_LEASE(flock))
 		goto out;
 
-	if (!locks_conflict(flock, new_fl))
+	for (fl = flock; fl && IS_LEASE(fl); fl = fl->fl_next) {
+		if (leases_conflict(fl, new_fl)) {
+			lease_conflict = true;
+			if (fl->fl_owner == current->files)
+				i_have_this_lease = 1;
+		}
+	}
+	if (!lease_conflict)
 		goto out;
 
-	for (fl = flock; fl && IS_LEASE(fl); fl = fl->fl_next)
-		if (fl->fl_owner == current->files)
-			i_have_this_lease = 1;
-
 	break_time = 0;
 	if (lease_break_time > 0) {
 		break_time = jiffies + lease_break_time * HZ;
@@ -1338,6 +1353,8 @@ int __break_lease(struct inode *inode, unsigned int mode)
 	}
 
 	for (fl = flock; fl && IS_LEASE(fl); fl = fl->fl_next) {
+		if (!leases_conflict(fl, new_fl))
+			continue;
 		if (want_write) {
 			if (fl->fl_flags & FL_UNLOCK_PENDING)
 				continue;
@@ -1379,7 +1396,7 @@ restart:
 		 */
 		for (flock = inode->i_flock; flock && IS_LEASE(flock);
 				flock = flock->fl_next) {
-			if (locks_conflict(new_fl, flock))
+			if (leases_conflict(new_fl, flock))
 				goto restart;
 		}
 		error = 0;
@@ -1460,9 +1477,26 @@ static int generic_add_lease(struct file *filp, long arg, struct file_lock **flp
 	struct file_lock *fl, **before, **my_before = NULL, *lease;
 	struct dentry *dentry = filp->f_path.dentry;
 	struct inode *inode = dentry->d_inode;
+	bool is_deleg = (*flp)->fl_flags & FL_DELEG;
 	int error;
 
 	lease = *flp;
+	/*
+	 * In the delegation case we need mutual exclusion with
+	 * a number of operations that take the i_mutex.  We trylock
+	 * because delegations are an optional optimization, and if
+	 * there's some chance of a conflict--we'd rather not
+	 * bother, maybe that's a sign this just isn't a good file to
+	 * hand out a delegation on.
+	 */
+	if (is_deleg && !mutex_trylock(&inode->i_mutex))
+		return -EAGAIN;
+
+	if (is_deleg && arg == F_WRLCK) {
+		/* Write delegations are not currently supported: */
+		WARN_ON_ONCE(1);
+		return -EINVAL;
+	}
 
 	error = -EAGAIN;
 	if ((arg == F_RDLCK) && (atomic_read(&inode->i_writecount) > 0))
@@ -1514,9 +1548,10 @@ static int generic_add_lease(struct file *filp, long arg, struct file_lock **flp
 		goto out;
 
 	locks_insert_lock(before, lease);
-	return 0;
-
+	error = 0;
 out:
+	if (is_deleg)
+		mutex_unlock(&inode->i_mutex);
 	return error;
 }
 
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 129e150f9e94..8e4be1be1a62 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1022,7 +1022,7 @@ extern int vfs_test_lock(struct file *, struct file_lock *);
 extern int vfs_lock_file(struct file *, unsigned int, struct file_lock *, struct file_lock *);
 extern int vfs_cancel_lock(struct file *filp, struct file_lock *fl);
 extern int flock_lock_file_wait(struct file *filp, struct file_lock *fl);
-extern int __break_lease(struct inode *inode, unsigned int flags);
+extern int __break_lease(struct inode *inode, unsigned int flags, unsigned int type);
 extern void lease_get_mtime(struct inode *, struct timespec *time);
 extern int generic_setlease(struct file *, long, struct file_lock **);
 extern int vfs_setlease(struct file *, long, struct file_lock **);
@@ -1131,7 +1131,7 @@ static inline int flock_lock_file_wait(struct file *filp,
 	return -ENOLCK;
 }
 
-static inline int __break_lease(struct inode *inode, unsigned int mode)
+static inline int __break_lease(struct inode *inode, unsigned int mode, unsigned int type)
 {
 	return 0;
 }
@@ -1961,9 +1961,17 @@ static inline int locks_verify_truncate(struct inode *inode,
 static inline int break_lease(struct inode *inode, unsigned int mode)
 {
 	if (inode->i_flock)
-		return __break_lease(inode, mode);
+		return __break_lease(inode, mode, FL_LEASE);
 	return 0;
 }
+
+static inline int break_deleg(struct inode *inode, unsigned int mode)
+{
+	if (inode->i_flock)
+		return __break_lease(inode, mode, FL_DELEG);
+	return 0;
+}
+
 #else /* !CONFIG_FILE_LOCKING */
 static inline int locks_mandatory_locked(struct inode *inode)
 {
@@ -2003,6 +2011,10 @@ static inline int break_lease(struct inode *inode, unsigned int mode)
 	return 0;
 }
 
+static inline int break_deleg(struct inode *inode, unsigned int mode)
+{
+	return 0;
+}
 #endif /* CONFIG_FILE_LOCKING */
 
 /* fs/open.c */
-- 
cgit 


From 9accbb977ab78234b8f298df5f306ed08d06bedb Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Tue, 28 Aug 2012 07:03:24 -0400
Subject: namei: minor vfs_unlink cleanup

We'll be using dentry->d_inode in one more place.

Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/namei.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/fs/namei.c b/fs/namei.c
index 88cec0330bf7..e633a58d4222 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3617,6 +3617,7 @@ SYSCALL_DEFINE1(rmdir, const char __user *, pathname)
 
 int vfs_unlink(struct inode *dir, struct dentry *dentry)
 {
+	struct inode *target = dentry->d_inode;
 	int error = may_delete(dir, dentry, 0);
 
 	if (error)
@@ -3625,7 +3626,7 @@ int vfs_unlink(struct inode *dir, struct dentry *dentry)
 	if (!dir->i_op->unlink)
 		return -EPERM;
 
-	mutex_lock(&dentry->d_inode->i_mutex);
+	mutex_lock(&target->i_mutex);
 	if (d_mountpoint(dentry))
 		error = -EBUSY;
 	else {
@@ -3636,11 +3637,11 @@ int vfs_unlink(struct inode *dir, struct dentry *dentry)
 				dont_mount(dentry);
 		}
 	}
-	mutex_unlock(&dentry->d_inode->i_mutex);
+	mutex_unlock(&target->i_mutex);
 
 	/* We don't d_delete() NFS sillyrenamed files--they still exist. */
 	if (!error && !(dentry->d_flags & DCACHE_NFSFS_RENAMED)) {
-		fsnotify_link_count(dentry->d_inode);
+		fsnotify_link_count(target);
 		d_delete(dentry);
 	}
 
-- 
cgit 


From b21996e36c8e3b92a84e972378bde80b43acd890 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Tue, 20 Sep 2011 09:14:34 -0400
Subject: locks: break delegations on unlink

We need to break delegations on any operation that changes the set of
links pointing to an inode.  Start with unlink.

Such operations also hold the i_mutex on a parent directory.  Breaking a
delegation may require waiting for a timeout (by default 90 seconds) in
the case of a unresponsive NFS client.  To avoid blocking all directory
operations, we therefore drop locks before waiting for the delegation.
The logic then looks like:

	acquire locks
	...
	test for delegation; if found:
		take reference on inode
		release locks
		wait for delegation break
		drop reference on inode
		retry

It is possible this could never terminate.  (Even if we take precautions
to prevent another delegation being acquired on the same inode, we could
get a different inode on each retry.)  But this seems very unlikely.

The initial test for a delegation happens after the lock on the target
inode is acquired, but the directory inode may have been acquired
further up the call stack.  We therefore add a "struct inode **"
argument to any intervening functions, which we use to pass the inode
back up to the caller in the case it needs a delegation synchronously
broken.

Cc: David Howells <dhowells@redhat.com>
Cc: Tyler Hicks <tyhicks@canonical.com>
Cc: Dustin Kirkland <dustin.kirkland@gazzang.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/base/devtmpfs.c |  2 +-
 fs/cachefiles/namei.c   |  2 +-
 fs/ecryptfs/inode.c     |  4 ++--
 fs/namei.c              | 42 +++++++++++++++++++++++++++++++++++++++---
 fs/nfsd/vfs.c           |  2 +-
 include/linux/fs.h      |  2 +-
 ipc/mqueue.c            |  2 +-
 7 files changed, 46 insertions(+), 10 deletions(-)

diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index 7413d065906b..1b8490e2fbde 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -324,7 +324,7 @@ static int handle_remove(const char *nodename, struct device *dev)
 			mutex_lock(&dentry->d_inode->i_mutex);
 			notify_change(dentry, &newattrs);
 			mutex_unlock(&dentry->d_inode->i_mutex);
-			err = vfs_unlink(parent.dentry->d_inode, dentry);
+			err = vfs_unlink(parent.dentry->d_inode, dentry, NULL);
 			if (!err || err == -ENOENT)
 				deleted = 1;
 		}
diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
index f4a08d7fa2f7..31d480c0e046 100644
--- a/fs/cachefiles/namei.c
+++ b/fs/cachefiles/namei.c
@@ -294,7 +294,7 @@ static int cachefiles_bury_object(struct cachefiles_cache *cache,
 		if (ret < 0) {
 			cachefiles_io_error(cache, "Unlink security error");
 		} else {
-			ret = vfs_unlink(dir->d_inode, rep);
+			ret = vfs_unlink(dir->d_inode, rep, NULL);
 
 			if (preemptive)
 				cachefiles_mark_object_buried(cache, rep);
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 0f9b66eaa767..dc60b8bd09ec 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -153,7 +153,7 @@ static int ecryptfs_do_unlink(struct inode *dir, struct dentry *dentry,
 
 	dget(lower_dentry);
 	lower_dir_dentry = lock_parent(lower_dentry);
-	rc = vfs_unlink(lower_dir_inode, lower_dentry);
+	rc = vfs_unlink(lower_dir_inode, lower_dentry, NULL);
 	if (rc) {
 		printk(KERN_ERR "Error in vfs_unlink; rc = [%d]\n", rc);
 		goto out_unlock;
@@ -208,7 +208,7 @@ ecryptfs_do_create(struct inode *directory_inode,
 	inode = __ecryptfs_get_inode(lower_dentry->d_inode,
 				     directory_inode->i_sb);
 	if (IS_ERR(inode)) {
-		vfs_unlink(lower_dir_dentry->d_inode, lower_dentry);
+		vfs_unlink(lower_dir_dentry->d_inode, lower_dentry, NULL);
 		goto out_lock;
 	}
 	fsstack_copy_attr_times(directory_inode, lower_dir_dentry->d_inode);
diff --git a/fs/namei.c b/fs/namei.c
index e633a58d4222..67ce331a3ed8 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3615,7 +3615,25 @@ SYSCALL_DEFINE1(rmdir, const char __user *, pathname)
 	return do_rmdir(AT_FDCWD, pathname);
 }
 
-int vfs_unlink(struct inode *dir, struct dentry *dentry)
+/**
+ * vfs_unlink - unlink a filesystem object
+ * @dir:	parent directory
+ * @dentry:	victim
+ * @delegated_inode: returns victim inode, if the inode is delegated.
+ *
+ * The caller must hold dir->i_mutex.
+ *
+ * If vfs_unlink discovers a delegation, it will return -EWOULDBLOCK and
+ * return a reference to the inode in delegated_inode.  The caller
+ * should then break the delegation on that inode and retry.  Because
+ * breaking a delegation may take a long time, the caller should drop
+ * dir->i_mutex before doing so.
+ *
+ * Alternatively, a caller may pass NULL for delegated_inode.  This may
+ * be appropriate for callers that expect the underlying filesystem not
+ * to be NFS exported.
+ */
+int vfs_unlink(struct inode *dir, struct dentry *dentry, struct inode **delegated_inode)
 {
 	struct inode *target = dentry->d_inode;
 	int error = may_delete(dir, dentry, 0);
@@ -3632,11 +3650,20 @@ int vfs_unlink(struct inode *dir, struct dentry *dentry)
 	else {
 		error = security_inode_unlink(dir, dentry);
 		if (!error) {
+			error = break_deleg(target, O_WRONLY|O_NONBLOCK);
+			if (error) {
+				if (error == -EWOULDBLOCK && delegated_inode) {
+					*delegated_inode = target;
+					ihold(target);
+				}
+				goto out;
+			}
 			error = dir->i_op->unlink(dir, dentry);
 			if (!error)
 				dont_mount(dentry);
 		}
 	}
+out:
 	mutex_unlock(&target->i_mutex);
 
 	/* We don't d_delete() NFS sillyrenamed files--they still exist. */
@@ -3661,6 +3688,7 @@ static long do_unlinkat(int dfd, const char __user *pathname)
 	struct dentry *dentry;
 	struct nameidata nd;
 	struct inode *inode = NULL;
+	struct inode *delegated_inode = NULL;
 	unsigned int lookup_flags = 0;
 retry:
 	name = user_path_parent(dfd, pathname, &nd, lookup_flags);
@@ -3675,7 +3703,7 @@ retry:
 	error = mnt_want_write(nd.path.mnt);
 	if (error)
 		goto exit1;
-
+retry_deleg:
 	mutex_lock_nested(&nd.path.dentry->d_inode->i_mutex, I_MUTEX_PARENT);
 	dentry = lookup_hash(&nd);
 	error = PTR_ERR(dentry);
@@ -3690,13 +3718,21 @@ retry:
 		error = security_path_unlink(&nd.path, dentry);
 		if (error)
 			goto exit2;
-		error = vfs_unlink(nd.path.dentry->d_inode, dentry);
+		error = vfs_unlink(nd.path.dentry->d_inode, dentry, &delegated_inode);
 exit2:
 		dput(dentry);
 	}
 	mutex_unlock(&nd.path.dentry->d_inode->i_mutex);
 	if (inode)
 		iput(inode);	/* truncate the inode here */
+	inode = NULL;
+	if (delegated_inode) {
+		error = break_deleg(delegated_inode, O_WRONLY);
+		iput(delegated_inode);
+		delegated_inode = NULL;
+		if (!error)
+			goto retry_deleg;
+	}
 	mnt_drop_write(nd.path.mnt);
 exit1:
 	path_put(&nd.path);
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 13886f7f40d5..7a810235d599 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1910,7 +1910,7 @@ nfsd_unlink(struct svc_rqst *rqstp, struct svc_fh *fhp, int type,
 	if (host_err)
 		goto out_put;
 	if (type != S_IFDIR)
-		host_err = vfs_unlink(dirp, rdentry);
+		host_err = vfs_unlink(dirp, rdentry, NULL);
 	else
 		host_err = vfs_rmdir(dirp, rdentry);
 	if (!host_err)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 8e4be1be1a62..a5799233142a 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1455,7 +1455,7 @@ extern int vfs_mknod(struct inode *, struct dentry *, umode_t, dev_t);
 extern int vfs_symlink(struct inode *, struct dentry *, const char *);
 extern int vfs_link(struct dentry *, struct inode *, struct dentry *);
 extern int vfs_rmdir(struct inode *, struct dentry *);
-extern int vfs_unlink(struct inode *, struct dentry *);
+extern int vfs_unlink(struct inode *, struct dentry *, struct inode **);
 extern int vfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *);
 
 /*
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index ae1996d3c539..95827ce2f3c7 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -886,7 +886,7 @@ SYSCALL_DEFINE1(mq_unlink, const char __user *, u_name)
 		err = -ENOENT;
 	} else {
 		ihold(inode);
-		err = vfs_unlink(dentry->d_parent->d_inode, dentry);
+		err = vfs_unlink(dentry->d_parent->d_inode, dentry, NULL);
 	}
 	dput(dentry);
 
-- 
cgit 


From 5a14696c1795d3843673b5cf1982d0e5357a5bbf Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Tue, 28 Aug 2012 07:50:40 -0700
Subject: locks: helper functions for delegation breaking

We'll need the same logic for rename and link.

Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/namei.c         | 13 +++----------
 include/linux/fs.h | 39 +++++++++++++++++++++++++++++++++++++--
 2 files changed, 40 insertions(+), 12 deletions(-)

diff --git a/fs/namei.c b/fs/namei.c
index 67ce331a3ed8..cfaeaae0f2db 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3650,14 +3650,9 @@ int vfs_unlink(struct inode *dir, struct dentry *dentry, struct inode **delegate
 	else {
 		error = security_inode_unlink(dir, dentry);
 		if (!error) {
-			error = break_deleg(target, O_WRONLY|O_NONBLOCK);
-			if (error) {
-				if (error == -EWOULDBLOCK && delegated_inode) {
-					*delegated_inode = target;
-					ihold(target);
-				}
+			error = try_break_deleg(target, delegated_inode);
+			if (error)
 				goto out;
-			}
 			error = dir->i_op->unlink(dir, dentry);
 			if (!error)
 				dont_mount(dentry);
@@ -3727,9 +3722,7 @@ exit2:
 		iput(inode);	/* truncate the inode here */
 	inode = NULL;
 	if (delegated_inode) {
-		error = break_deleg(delegated_inode, O_WRONLY);
-		iput(delegated_inode);
-		delegated_inode = NULL;
+		error = break_deleg_wait(&delegated_inode);
 		if (!error)
 			goto retry_deleg;
 	}
diff --git a/include/linux/fs.h b/include/linux/fs.h
index a5799233142a..931f919f44e1 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1905,6 +1905,9 @@ extern bool fs_fully_visible(struct file_system_type *);
 
 extern int current_umask(void);
 
+extern void ihold(struct inode * inode);
+extern void iput(struct inode *);
+
 /* /sys/fs */
 extern struct kobject *fs_kobj;
 
@@ -1972,6 +1975,28 @@ static inline int break_deleg(struct inode *inode, unsigned int mode)
 	return 0;
 }
 
+static inline int try_break_deleg(struct inode *inode, struct inode **delegated_inode)
+{
+	int ret;
+
+	ret = break_deleg(inode, O_WRONLY|O_NONBLOCK);
+	if (ret == -EWOULDBLOCK && delegated_inode) {
+		*delegated_inode = inode;
+		ihold(inode);
+	}
+	return ret;
+}
+
+static inline int break_deleg_wait(struct inode **delegated_inode)
+{
+	int ret;
+
+	ret = break_deleg(*delegated_inode, O_WRONLY);
+	iput(*delegated_inode);
+	*delegated_inode = NULL;
+	return ret;
+}
+
 #else /* !CONFIG_FILE_LOCKING */
 static inline int locks_mandatory_locked(struct inode *inode)
 {
@@ -2015,6 +2040,18 @@ static inline int break_deleg(struct inode *inode, unsigned int mode)
 {
 	return 0;
 }
+
+static inline int try_break_deleg(struct inode *inode, struct inode **delegated_inode)
+{
+	return 0;
+}
+
+static inline int break_deleg_wait(struct inode **delegated_inode)
+{
+	BUG();
+	return 0;
+}
+
 #endif /* CONFIG_FILE_LOCKING */
 
 /* fs/open.c */
@@ -2350,8 +2387,6 @@ extern loff_t vfs_llseek(struct file *file, loff_t offset, int whence);
 extern int inode_init_always(struct super_block *, struct inode *);
 extern void inode_init_once(struct inode *);
 extern void address_space_init_once(struct address_space *mapping);
-extern void ihold(struct inode * inode);
-extern void iput(struct inode *);
 extern struct inode * igrab(struct inode *);
 extern ino_t iunique(struct super_block *, ino_t);
 extern int inode_needs_sync(struct inode *inode);
-- 
cgit 


From 8e6d782cab50884ba94324632700e6233a252f6a Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Tue, 20 Sep 2011 16:59:58 -0400
Subject: locks: break delegations on rename

Cc: David Howells <dhowells@redhat.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 .../lustre/lustre/include/linux/lustre_compat25.h  |  4 +-
 drivers/staging/lustre/lustre/lvfs/lvfs_linux.c    |  2 +-
 fs/cachefiles/namei.c                              |  2 +-
 fs/ecryptfs/inode.c                                |  3 +-
 fs/namei.c                                         | 47 ++++++++++++++++++++--
 fs/nfsd/vfs.c                                      |  2 +-
 include/linux/fs.h                                 |  2 +-
 7 files changed, 51 insertions(+), 11 deletions(-)

diff --git a/drivers/staging/lustre/lustre/include/linux/lustre_compat25.h b/drivers/staging/lustre/lustre/include/linux/lustre_compat25.h
index 9243dfab43d3..80b019bf969c 100644
--- a/drivers/staging/lustre/lustre/include/linux/lustre_compat25.h
+++ b/drivers/staging/lustre/lustre/include/linux/lustre_compat25.h
@@ -105,8 +105,8 @@ static inline void ll_set_fs_pwd(struct fs_struct *fs, struct vfsmount *mnt,
 #define ll_vfs_unlink(inode,entry,mnt)	  vfs_unlink(inode,entry)
 #define ll_vfs_mknod(dir,entry,mnt,mode,dev)    vfs_mknod(dir,entry,mode,dev)
 #define ll_security_inode_unlink(dir,entry,mnt) security_inode_unlink(dir,entry)
-#define ll_vfs_rename(old,old_dir,mnt,new,new_dir,mnt1) \
-		vfs_rename(old,old_dir,new,new_dir)
+#define ll_vfs_rename(old,old_dir,mnt,new,new_dir,mnt1,delegated_inode) \
+		vfs_rename(old,old_dir,new,new_dir,delegated_inode)
 
 #define cfs_bio_io_error(a,b)   bio_io_error((a))
 #define cfs_bio_endio(a,b,c)    bio_endio((a),(c))
diff --git a/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c b/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c
index 18e1b47a1d65..4ed7c9f0a8be 100644
--- a/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c
+++ b/drivers/staging/lustre/lustre/lvfs/lvfs_linux.c
@@ -220,7 +220,7 @@ int lustre_rename(struct dentry *dir, struct vfsmount *mnt,
 		GOTO(put_old, err = PTR_ERR(dchild_new));
 
 	err = ll_vfs_rename(dir->d_inode, dchild_old, mnt,
-			    dir->d_inode, dchild_new, mnt);
+			    dir->d_inode, dchild_new, mnt, NULL);
 
 	dput(dchild_new);
 put_old:
diff --git a/fs/cachefiles/namei.c b/fs/cachefiles/namei.c
index 31d480c0e046..ca65f39dc8dc 100644
--- a/fs/cachefiles/namei.c
+++ b/fs/cachefiles/namei.c
@@ -396,7 +396,7 @@ try_again:
 		cachefiles_io_error(cache, "Rename security error %d", ret);
 	} else {
 		ret = vfs_rename(dir->d_inode, rep,
-				 cache->graveyard->d_inode, grave);
+				 cache->graveyard->d_inode, grave, NULL);
 		if (ret != 0 && ret != -ENOMEM)
 			cachefiles_io_error(cache,
 					    "Rename failed with error %d", ret);
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index dc60b8bd09ec..c23b01bb7e04 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -640,7 +640,8 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 		goto out_lock;
 	}
 	rc = vfs_rename(lower_old_dir_dentry->d_inode, lower_old_dentry,
-			lower_new_dir_dentry->d_inode, lower_new_dentry);
+			lower_new_dir_dentry->d_inode, lower_new_dentry,
+			NULL);
 	if (rc)
 		goto out_lock;
 	if (target_inode)
diff --git a/fs/namei.c b/fs/namei.c
index cfaeaae0f2db..ce7e580e4e14 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -4022,7 +4022,8 @@ out:
 }
 
 static int vfs_rename_other(struct inode *old_dir, struct dentry *old_dentry,
-			    struct inode *new_dir, struct dentry *new_dentry)
+			    struct inode *new_dir, struct dentry *new_dentry,
+			    struct inode **delegated_inode)
 {
 	struct inode *target = new_dentry->d_inode;
 	struct inode *source = old_dentry->d_inode;
@@ -4039,6 +4040,14 @@ static int vfs_rename_other(struct inode *old_dir, struct dentry *old_dentry,
 	if (d_mountpoint(old_dentry)||d_mountpoint(new_dentry))
 		goto out;
 
+	error = try_break_deleg(source, delegated_inode);
+	if (error)
+		goto out;
+	if (target) {
+		error = try_break_deleg(target, delegated_inode);
+		if (error)
+			goto out;
+	}
 	error = old_dir->i_op->rename(old_dir, old_dentry, new_dir, new_dentry);
 	if (error)
 		goto out;
@@ -4053,8 +4062,30 @@ out:
 	return error;
 }
 
+/**
+ * vfs_rename - rename a filesystem object
+ * @old_dir:	parent of source
+ * @old_dentry:	source
+ * @new_dir:	parent of destination
+ * @new_dentry:	destination
+ * @delegated_inode: returns an inode needing a delegation break
+ *
+ * The caller must hold multiple mutexes--see lock_rename()).
+ *
+ * If vfs_rename discovers a delegation in need of breaking at either
+ * the source or destination, it will return -EWOULDBLOCK and return a
+ * reference to the inode in delegated_inode.  The caller should then
+ * break the delegation and retry.  Because breaking a delegation may
+ * take a long time, the caller should drop all locks before doing
+ * so.
+ *
+ * Alternatively, a caller may pass NULL for delegated_inode.  This may
+ * be appropriate for callers that expect the underlying filesystem not
+ * to be NFS exported.
+ */
 int vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
-	       struct inode *new_dir, struct dentry *new_dentry)
+	       struct inode *new_dir, struct dentry *new_dentry,
+	       struct inode **delegated_inode)
 {
 	int error;
 	int is_dir = d_is_directory(old_dentry) || d_is_autodir(old_dentry);
@@ -4082,7 +4113,7 @@ int vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	if (is_dir)
 		error = vfs_rename_dir(old_dir,old_dentry,new_dir,new_dentry);
 	else
-		error = vfs_rename_other(old_dir,old_dentry,new_dir,new_dentry);
+		error = vfs_rename_other(old_dir,old_dentry,new_dir,new_dentry,delegated_inode);
 	if (!error)
 		fsnotify_move(old_dir, new_dir, old_name, is_dir,
 			      new_dentry->d_inode, old_dentry);
@@ -4098,6 +4129,7 @@ SYSCALL_DEFINE4(renameat, int, olddfd, const char __user *, oldname,
 	struct dentry *old_dentry, *new_dentry;
 	struct dentry *trap;
 	struct nameidata oldnd, newnd;
+	struct inode *delegated_inode = NULL;
 	struct filename *from;
 	struct filename *to;
 	unsigned int lookup_flags = 0;
@@ -4137,6 +4169,7 @@ retry:
 	newnd.flags &= ~LOOKUP_PARENT;
 	newnd.flags |= LOOKUP_RENAME_TARGET;
 
+retry_deleg:
 	trap = lock_rename(new_dir, old_dir);
 
 	old_dentry = lookup_hash(&oldnd);
@@ -4173,13 +4206,19 @@ retry:
 	if (error)
 		goto exit5;
 	error = vfs_rename(old_dir->d_inode, old_dentry,
-				   new_dir->d_inode, new_dentry);
+				   new_dir->d_inode, new_dentry,
+				   &delegated_inode);
 exit5:
 	dput(new_dentry);
 exit4:
 	dput(old_dentry);
 exit3:
 	unlock_rename(new_dir, old_dir);
+	if (delegated_inode) {
+		error = break_deleg_wait(&delegated_inode);
+		if (!error)
+			goto retry_deleg;
+	}
 	mnt_drop_write(oldnd.path.mnt);
 exit2:
 	if (retry_estale(error, lookup_flags))
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 7a810235d599..45bf0295894d 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1837,7 +1837,7 @@ nfsd_rename(struct svc_rqst *rqstp, struct svc_fh *ffhp, char *fname, int flen,
 		if (host_err)
 			goto out_dput_new;
 	}
-	host_err = vfs_rename(fdir, odentry, tdir, ndentry);
+	host_err = vfs_rename(fdir, odentry, tdir, ndentry, NULL);
 	if (!host_err) {
 		host_err = commit_metadata(tfhp);
 		if (!host_err)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 931f919f44e1..5bcff883fa90 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1456,7 +1456,7 @@ extern int vfs_symlink(struct inode *, struct dentry *, const char *);
 extern int vfs_link(struct dentry *, struct inode *, struct dentry *);
 extern int vfs_rmdir(struct inode *, struct dentry *);
 extern int vfs_unlink(struct inode *, struct dentry *, struct inode **);
-extern int vfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *);
+extern int vfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *, struct inode **);
 
 /*
  * VFS dentry helper functions.
-- 
cgit 


From 146a8595c6399ee6ab4b5cc34c0d28aa4835fdc5 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Tue, 20 Sep 2011 17:14:31 -0400
Subject: locks: break delegations on link

Cc: Tyler Hicks <tyhicks@canonical.com>
Cc: Dustin Kirkland <dustin.kirkland@gazzang.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/ecryptfs/inode.c |  2 +-
 fs/namei.c          | 36 ++++++++++++++++++++++++++++++++----
 fs/nfsd/vfs.c       |  2 +-
 include/linux/fs.h  |  2 +-
 4 files changed, 35 insertions(+), 7 deletions(-)

diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index c23b01bb7e04..1c628f023041 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -475,7 +475,7 @@ static int ecryptfs_link(struct dentry *old_dentry, struct inode *dir,
 	dget(lower_new_dentry);
 	lower_dir_dentry = lock_parent(lower_new_dentry);
 	rc = vfs_link(lower_old_dentry, lower_dir_dentry->d_inode,
-		      lower_new_dentry);
+		      lower_new_dentry, NULL);
 	if (rc || !lower_new_dentry->d_inode)
 		goto out_lock;
 	rc = ecryptfs_interpose(lower_new_dentry, new_dentry, dir->i_sb);
diff --git a/fs/namei.c b/fs/namei.c
index ce7e580e4e14..251178a1e383 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -3819,7 +3819,26 @@ SYSCALL_DEFINE2(symlink, const char __user *, oldname, const char __user *, newn
 	return sys_symlinkat(oldname, AT_FDCWD, newname);
 }
 
-int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_dentry)
+/**
+ * vfs_link - create a new link
+ * @old_dentry:	object to be linked
+ * @dir:	new parent
+ * @new_dentry:	where to create the new link
+ * @delegated_inode: returns inode needing a delegation break
+ *
+ * The caller must hold dir->i_mutex
+ *
+ * If vfs_link discovers a delegation on the to-be-linked file in need
+ * of breaking, it will return -EWOULDBLOCK and return a reference to the
+ * inode in delegated_inode.  The caller should then break the delegation
+ * and retry.  Because breaking a delegation may take a long time, the
+ * caller should drop the i_mutex before doing so.
+ *
+ * Alternatively, a caller may pass NULL for delegated_inode.  This may
+ * be appropriate for callers that expect the underlying filesystem not
+ * to be NFS exported.
+ */
+int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_dentry, struct inode **delegated_inode)
 {
 	struct inode *inode = old_dentry->d_inode;
 	unsigned max_links = dir->i_sb->s_max_links;
@@ -3855,8 +3874,11 @@ int vfs_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_de
 		error =  -ENOENT;
 	else if (max_links && inode->i_nlink >= max_links)
 		error = -EMLINK;
-	else
-		error = dir->i_op->link(old_dentry, dir, new_dentry);
+	else {
+		error = try_break_deleg(inode, delegated_inode);
+		if (!error)
+			error = dir->i_op->link(old_dentry, dir, new_dentry);
+	}
 
 	if (!error && (inode->i_state & I_LINKABLE)) {
 		spin_lock(&inode->i_lock);
@@ -3883,6 +3905,7 @@ SYSCALL_DEFINE5(linkat, int, olddfd, const char __user *, oldname,
 {
 	struct dentry *new_dentry;
 	struct path old_path, new_path;
+	struct inode *delegated_inode = NULL;
 	int how = 0;
 	int error;
 
@@ -3921,9 +3944,14 @@ retry:
 	error = security_path_link(old_path.dentry, &new_path, new_dentry);
 	if (error)
 		goto out_dput;
-	error = vfs_link(old_path.dentry, new_path.dentry->d_inode, new_dentry);
+	error = vfs_link(old_path.dentry, new_path.dentry->d_inode, new_dentry, &delegated_inode);
 out_dput:
 	done_path_create(&new_path, new_dentry);
+	if (delegated_inode) {
+		error = break_deleg_wait(&delegated_inode);
+		if (!error)
+			goto retry;
+	}
 	if (retry_estale(error, how)) {
 		how |= LOOKUP_REVAL;
 		goto retry;
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 45bf0295894d..27ba21b5f383 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -1736,7 +1736,7 @@ nfsd_link(struct svc_rqst *rqstp, struct svc_fh *ffhp,
 		err = nfserrno(host_err);
 		goto out_dput;
 	}
-	host_err = vfs_link(dold, dirp, dnew);
+	host_err = vfs_link(dold, dirp, dnew, NULL);
 	if (!host_err) {
 		err = nfserrno(commit_metadata(ffhp));
 		if (!err)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 5bcff883fa90..6e36e7118ec1 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1453,7 +1453,7 @@ extern int vfs_create(struct inode *, struct dentry *, umode_t, bool);
 extern int vfs_mkdir(struct inode *, struct dentry *, umode_t);
 extern int vfs_mknod(struct inode *, struct dentry *, umode_t, dev_t);
 extern int vfs_symlink(struct inode *, struct dentry *, const char *);
-extern int vfs_link(struct dentry *, struct inode *, struct dentry *);
+extern int vfs_link(struct dentry *, struct inode *, struct dentry *, struct inode **);
 extern int vfs_rmdir(struct inode *, struct dentry *);
 extern int vfs_unlink(struct inode *, struct dentry *, struct inode **);
 extern int vfs_rename(struct inode *, struct dentry *, struct inode *, struct dentry *, struct inode **);
-- 
cgit 


From 27ac0ffeac80ba6b9580529568d06144df044366 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Tue, 20 Sep 2011 17:19:26 -0400
Subject: locks: break delegations on any attribute modification

NFSv4 uses leases to guarantee that clients can cache metadata as well
as data.

Cc: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Cc: David Howells <dhowells@redhat.com>
Cc: Tyler Hicks <tyhicks@canonical.com>
Cc: Dustin Kirkland <dustin.kirkland@gazzang.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/base/devtmpfs.c   |  4 ++--
 fs/attr.c                 | 25 ++++++++++++++++++++++++-
 fs/cachefiles/interface.c |  4 ++--
 fs/ecryptfs/inode.c       |  4 ++--
 fs/hpfs/namei.c           |  2 +-
 fs/inode.c                |  6 +++++-
 fs/nfsd/vfs.c             |  8 ++++++--
 fs/open.c                 | 22 ++++++++++++++++++----
 fs/utimes.c               |  9 ++++++++-
 include/linux/fs.h        |  2 +-
 10 files changed, 69 insertions(+), 17 deletions(-)

diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index 1b8490e2fbde..0f3820121e02 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -216,7 +216,7 @@ static int handle_create(const char *nodename, umode_t mode, kuid_t uid,
 		newattrs.ia_gid = gid;
 		newattrs.ia_valid = ATTR_MODE|ATTR_UID|ATTR_GID;
 		mutex_lock(&dentry->d_inode->i_mutex);
-		notify_change(dentry, &newattrs);
+		notify_change(dentry, &newattrs, NULL);
 		mutex_unlock(&dentry->d_inode->i_mutex);
 
 		/* mark as kernel-created inode */
@@ -322,7 +322,7 @@ static int handle_remove(const char *nodename, struct device *dev)
 			newattrs.ia_valid =
 				ATTR_UID|ATTR_GID|ATTR_MODE;
 			mutex_lock(&dentry->d_inode->i_mutex);
-			notify_change(dentry, &newattrs);
+			notify_change(dentry, &newattrs, NULL);
 			mutex_unlock(&dentry->d_inode->i_mutex);
 			err = vfs_unlink(parent.dentry->d_inode, dentry, NULL);
 			if (!err || err == -ENOENT)
diff --git a/fs/attr.c b/fs/attr.c
index 1449adb14ef6..267968d94673 100644
--- a/fs/attr.c
+++ b/fs/attr.c
@@ -167,7 +167,27 @@ void setattr_copy(struct inode *inode, const struct iattr *attr)
 }
 EXPORT_SYMBOL(setattr_copy);
 
-int notify_change(struct dentry * dentry, struct iattr * attr)
+/**
+ * notify_change - modify attributes of a filesytem object
+ * @dentry:	object affected
+ * @iattr:	new attributes
+ * @delegated_inode: returns inode, if the inode is delegated
+ *
+ * The caller must hold the i_mutex on the affected object.
+ *
+ * If notify_change discovers a delegation in need of breaking,
+ * it will return -EWOULDBLOCK and return a reference to the inode in
+ * delegated_inode.  The caller should then break the delegation and
+ * retry.  Because breaking a delegation may take a long time, the
+ * caller should drop the i_mutex before doing so.
+ *
+ * Alternatively, a caller may pass NULL for delegated_inode.  This may
+ * be appropriate for callers that expect the underlying filesystem not
+ * to be NFS exported.  Also, passing NULL is fine for callers holding
+ * the file open for write, as there can be no conflicting delegation in
+ * that case.
+ */
+int notify_change(struct dentry * dentry, struct iattr * attr, struct inode **delegated_inode)
 {
 	struct inode *inode = dentry->d_inode;
 	umode_t mode = inode->i_mode;
@@ -241,6 +261,9 @@ int notify_change(struct dentry * dentry, struct iattr * attr)
 		return 0;
 
 	error = security_inode_setattr(dentry, attr);
+	if (error)
+		return error;
+	error = try_break_deleg(inode, delegated_inode);
 	if (error)
 		return error;
 
diff --git a/fs/cachefiles/interface.c b/fs/cachefiles/interface.c
index 43eb5592cdea..5088a418ac4d 100644
--- a/fs/cachefiles/interface.c
+++ b/fs/cachefiles/interface.c
@@ -449,14 +449,14 @@ static int cachefiles_attr_changed(struct fscache_object *_object)
 		_debug("discard tail %llx", oi_size);
 		newattrs.ia_valid = ATTR_SIZE;
 		newattrs.ia_size = oi_size & PAGE_MASK;
-		ret = notify_change(object->backer, &newattrs);
+		ret = notify_change(object->backer, &newattrs, NULL);
 		if (ret < 0)
 			goto truncate_failed;
 	}
 
 	newattrs.ia_valid = ATTR_SIZE;
 	newattrs.ia_size = ni_size;
-	ret = notify_change(object->backer, &newattrs);
+	ret = notify_change(object->backer, &newattrs, NULL);
 
 truncate_failed:
 	mutex_unlock(&object->backer->d_inode->i_mutex);
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 1c628f023041..c36c44824471 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -882,7 +882,7 @@ int ecryptfs_truncate(struct dentry *dentry, loff_t new_length)
 		struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);
 
 		mutex_lock(&lower_dentry->d_inode->i_mutex);
-		rc = notify_change(lower_dentry, &lower_ia);
+		rc = notify_change(lower_dentry, &lower_ia, NULL);
 		mutex_unlock(&lower_dentry->d_inode->i_mutex);
 	}
 	return rc;
@@ -983,7 +983,7 @@ static int ecryptfs_setattr(struct dentry *dentry, struct iattr *ia)
 		lower_ia.ia_valid &= ~ATTR_MODE;
 
 	mutex_lock(&lower_dentry->d_inode->i_mutex);
-	rc = notify_change(lower_dentry, &lower_ia);
+	rc = notify_change(lower_dentry, &lower_ia, NULL);
 	mutex_unlock(&lower_dentry->d_inode->i_mutex);
 out:
 	fsstack_copy_attr_all(inode, lower_inode);
diff --git a/fs/hpfs/namei.c b/fs/hpfs/namei.c
index 345713d2f8f3..1b39afdd86fd 100644
--- a/fs/hpfs/namei.c
+++ b/fs/hpfs/namei.c
@@ -407,7 +407,7 @@ again:
 			/*printk("HPFS: truncating file before delete.\n");*/
 			newattrs.ia_size = 0;
 			newattrs.ia_valid = ATTR_SIZE | ATTR_CTIME;
-			err = notify_change(dentry, &newattrs);
+			err = notify_change(dentry, &newattrs, NULL);
 			put_write_access(inode);
 			if (!err)
 				goto again;
diff --git a/fs/inode.c b/fs/inode.c
index ce48c359ce9e..4bcdad3c9361 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -1603,7 +1603,11 @@ static int __remove_suid(struct dentry *dentry, int kill)
 	struct iattr newattrs;
 
 	newattrs.ia_valid = ATTR_FORCE | kill;
-	return notify_change(dentry, &newattrs);
+	/*
+	 * Note we call this on write, so notify_change will not
+	 * encounter any conflicting delegations:
+	 */
+	return notify_change(dentry, &newattrs, NULL);
 }
 
 int file_remove_suid(struct file *file)
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 27ba21b5f383..94b5f5d2bfed 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -427,7 +427,7 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
 			goto out_nfserr;
 		fh_lock(fhp);
 
-		host_err = notify_change(dentry, iap);
+		host_err = notify_change(dentry, iap, NULL);
 		err = nfserrno(host_err);
 		fh_unlock(fhp);
 	}
@@ -988,7 +988,11 @@ static void kill_suid(struct dentry *dentry)
 	ia.ia_valid = ATTR_KILL_SUID | ATTR_KILL_SGID | ATTR_KILL_PRIV;
 
 	mutex_lock(&dentry->d_inode->i_mutex);
-	notify_change(dentry, &ia);
+	/*
+	 * Note we call this on write, so notify_change will not
+	 * encounter any conflicting delegations:
+	 */
+	notify_change(dentry, &ia, NULL);
 	mutex_unlock(&dentry->d_inode->i_mutex);
 }
 
diff --git a/fs/open.c b/fs/open.c
index fffbed40dbe9..4b3e1edf2fe4 100644
--- a/fs/open.c
+++ b/fs/open.c
@@ -57,7 +57,8 @@ int do_truncate(struct dentry *dentry, loff_t length, unsigned int time_attrs,
 		newattrs.ia_valid |= ret | ATTR_FORCE;
 
 	mutex_lock(&dentry->d_inode->i_mutex);
-	ret = notify_change(dentry, &newattrs);
+	/* Note any delegations or leases have already been broken: */
+	ret = notify_change(dentry, &newattrs, NULL);
 	mutex_unlock(&dentry->d_inode->i_mutex);
 	return ret;
 }
@@ -464,21 +465,28 @@ out:
 static int chmod_common(struct path *path, umode_t mode)
 {
 	struct inode *inode = path->dentry->d_inode;
+	struct inode *delegated_inode = NULL;
 	struct iattr newattrs;
 	int error;
 
 	error = mnt_want_write(path->mnt);
 	if (error)
 		return error;
+retry_deleg:
 	mutex_lock(&inode->i_mutex);
 	error = security_path_chmod(path, mode);
 	if (error)
 		goto out_unlock;
 	newattrs.ia_mode = (mode & S_IALLUGO) | (inode->i_mode & ~S_IALLUGO);
 	newattrs.ia_valid = ATTR_MODE | ATTR_CTIME;
-	error = notify_change(path->dentry, &newattrs);
+	error = notify_change(path->dentry, &newattrs, &delegated_inode);
 out_unlock:
 	mutex_unlock(&inode->i_mutex);
+	if (delegated_inode) {
+		error = break_deleg_wait(&delegated_inode);
+		if (!error)
+			goto retry_deleg;
+	}
 	mnt_drop_write(path->mnt);
 	return error;
 }
@@ -522,6 +530,7 @@ SYSCALL_DEFINE2(chmod, const char __user *, filename, umode_t, mode)
 static int chown_common(struct path *path, uid_t user, gid_t group)
 {
 	struct inode *inode = path->dentry->d_inode;
+	struct inode *delegated_inode = NULL;
 	int error;
 	struct iattr newattrs;
 	kuid_t uid;
@@ -546,12 +555,17 @@ static int chown_common(struct path *path, uid_t user, gid_t group)
 	if (!S_ISDIR(inode->i_mode))
 		newattrs.ia_valid |=
 			ATTR_KILL_SUID | ATTR_KILL_SGID | ATTR_KILL_PRIV;
+retry_deleg:
 	mutex_lock(&inode->i_mutex);
 	error = security_path_chown(path, uid, gid);
 	if (!error)
-		error = notify_change(path->dentry, &newattrs);
+		error = notify_change(path->dentry, &newattrs, &delegated_inode);
 	mutex_unlock(&inode->i_mutex);
-
+	if (delegated_inode) {
+		error = break_deleg_wait(&delegated_inode);
+		if (!error)
+			goto retry_deleg;
+	}
 	return error;
 }
 
diff --git a/fs/utimes.c b/fs/utimes.c
index f4fb7eca10e8..aa138d64560a 100644
--- a/fs/utimes.c
+++ b/fs/utimes.c
@@ -53,6 +53,7 @@ static int utimes_common(struct path *path, struct timespec *times)
 	int error;
 	struct iattr newattrs;
 	struct inode *inode = path->dentry->d_inode;
+	struct inode *delegated_inode = NULL;
 
 	error = mnt_want_write(path->mnt);
 	if (error)
@@ -101,9 +102,15 @@ static int utimes_common(struct path *path, struct timespec *times)
 				goto mnt_drop_write_and_out;
 		}
 	}
+retry_deleg:
 	mutex_lock(&inode->i_mutex);
-	error = notify_change(path->dentry, &newattrs);
+	error = notify_change(path->dentry, &newattrs, &delegated_inode);
 	mutex_unlock(&inode->i_mutex);
+	if (delegated_inode) {
+		error = break_deleg_wait(&delegated_inode);
+		if (!error)
+			goto retry_deleg;
+	}
 
 mnt_drop_write_and_out:
 	mnt_drop_write(path->mnt);
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 6e36e7118ec1..ab2a0ca82dc5 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2278,7 +2278,7 @@ extern void emergency_remount(void);
 #ifdef CONFIG_BLOCK
 extern sector_t bmap(struct inode *, sector_t);
 #endif
-extern int notify_change(struct dentry *, struct iattr *);
+extern int notify_change(struct dentry *, struct iattr *, struct inode **);
 extern int inode_permission(struct inode *, int);
 extern int generic_permission(struct inode *, int);
 
-- 
cgit 


From 4127c365c9dbd4412e70b1c01f6ae1e3624cafac Mon Sep 17 00:00:00 2001
From: Dave Jones <davej@redhat.com>
Date: Tue, 17 Sep 2013 17:45:54 -0400
Subject: RDMA/nes: Remove self-assignment from nes_query_qp()

Assigning a value to itself is pointless.

Spotted with coverity, no hardware to test.

Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/nes/nes_verbs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
index 5b53ca5a2284..8308e3634767 100644
--- a/drivers/infiniband/hw/nes/nes_verbs.c
+++ b/drivers/infiniband/hw/nes/nes_verbs.c
@@ -2834,7 +2834,7 @@ static int nes_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 	init_attr->qp_context = nesqp->ibqp.qp_context;
 	init_attr->send_cq = nesqp->ibqp.send_cq;
 	init_attr->recv_cq = nesqp->ibqp.recv_cq;
-	init_attr->srq = nesqp->ibqp.srq = nesqp->ibqp.srq;
+	init_attr->srq = nesqp->ibqp.srq;
 	init_attr->cap = attr->cap;
 
 	return 0;
-- 
cgit 


From 180771a3707a4c0577cbf4f830c754dbabfdfccb Mon Sep 17 00:00:00 2001
From: "Upinder Malhi \\(umalhi\\)" <umalhi@cisco.com>
Date: Tue, 10 Sep 2013 03:36:59 +0000
Subject: IB/core: Add Cisco usNIC rdma node and transport types

This patch adds new rdma node and new rdma transport, and supporting
code used by Cisco's low latency driver called usNIC.  usNIC uses its
own transport, distinct from IB and iWARP.

Signed-off-by: Upinder Malhi <umalhi@cisco.com>
Signed-off-by: Jeff Squyres <jsquyres@cisco.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/core/sysfs.c | 1 +
 drivers/infiniband/core/verbs.c | 3 +++
 include/rdma/ib_verbs.h         | 6 ++++--
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c
index cde1e7b5b85d..faad2caf22b1 100644
--- a/drivers/infiniband/core/sysfs.c
+++ b/drivers/infiniband/core/sysfs.c
@@ -612,6 +612,7 @@ static ssize_t show_node_type(struct device *device,
 	switch (dev->node_type) {
 	case RDMA_NODE_IB_CA:	  return sprintf(buf, "%d: CA\n", dev->node_type);
 	case RDMA_NODE_RNIC:	  return sprintf(buf, "%d: RNIC\n", dev->node_type);
+	case RDMA_NODE_USNIC:	  return sprintf(buf, "%d: usNIC\n", dev->node_type);
 	case RDMA_NODE_IB_SWITCH: return sprintf(buf, "%d: switch\n", dev->node_type);
 	case RDMA_NODE_IB_ROUTER: return sprintf(buf, "%d: router\n", dev->node_type);
 	default:		  return sprintf(buf, "%d: <unknown>\n", dev->node_type);
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index a321df28bab2..84f502785f89 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -114,6 +114,8 @@ rdma_node_get_transport(enum rdma_node_type node_type)
 		return RDMA_TRANSPORT_IB;
 	case RDMA_NODE_RNIC:
 		return RDMA_TRANSPORT_IWARP;
+	case RDMA_NODE_USNIC:
+		return RDMA_TRANSPORT_USNIC;
 	default:
 		BUG();
 		return 0;
@@ -130,6 +132,7 @@ enum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device, u8 port_
 	case RDMA_TRANSPORT_IB:
 		return IB_LINK_LAYER_INFINIBAND;
 	case RDMA_TRANSPORT_IWARP:
+	case RDMA_TRANSPORT_USNIC:
 		return IB_LINK_LAYER_ETHERNET;
 	default:
 		return IB_LINK_LAYER_UNSPECIFIED;
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index e393171e2fac..60354d53948e 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -67,12 +67,14 @@ enum rdma_node_type {
 	RDMA_NODE_IB_CA 	= 1,
 	RDMA_NODE_IB_SWITCH,
 	RDMA_NODE_IB_ROUTER,
-	RDMA_NODE_RNIC
+	RDMA_NODE_RNIC,
+	RDMA_NODE_USNIC,
 };
 
 enum rdma_transport_type {
 	RDMA_TRANSPORT_IB,
-	RDMA_TRANSPORT_IWARP
+	RDMA_TRANSPORT_IWARP,
+	RDMA_TRANSPORT_USNIC
 };
 
 enum rdma_transport_type
-- 
cgit 


From 911bdc68ec7fda5ae34fd99c33c2924edb4f8bab Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Tue, 29 Oct 2013 00:59:00 +0000
Subject: iio: Fix mag3110 scan_type

last argument of IIO_ST is shift, not endianness

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/magnetometer/mag3110.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/iio/magnetometer/mag3110.c b/drivers/iio/magnetometer/mag3110.c
index 783c5b417356..becf54496967 100644
--- a/drivers/iio/magnetometer/mag3110.c
+++ b/drivers/iio/magnetometer/mag3110.c
@@ -250,7 +250,12 @@ done:
 	.info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SAMP_FREQ) | \
 		BIT(IIO_CHAN_INFO_SCALE), \
 	.scan_index = idx, \
-	.scan_type = IIO_ST('s', 16, 16, IIO_BE), \
+	.scan_type = { \
+		.sign = 's', \
+		.realbits = 16, \
+		.storagebits = 16, \
+		.endianness = IIO_BE, \
+	}, \
 }
 
 static const struct iio_chan_spec mag3110_channels[] = {
-- 
cgit 


From 50619cb173214b4188dfe14f858380c03c99b877 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Tue, 29 Oct 2013 00:59:00 +0000
Subject: iio: Fix mag3110 Kconfig dependencies

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/magnetometer/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iio/magnetometer/Kconfig b/drivers/iio/magnetometer/Kconfig
index 0cf09637b35b..d86d226dcd67 100644
--- a/drivers/iio/magnetometer/Kconfig
+++ b/drivers/iio/magnetometer/Kconfig
@@ -19,6 +19,8 @@ config AK8975
 config MAG3110
 	tristate "Freescale MAG3110 3-Axis Magnetometer"
 	depends on I2C
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
 	help
 	  Say yes here to build support for the Freescale MAG3110 3-Axis
 	  magnetometer.
-- 
cgit 


From 089b54bd69059b6735fc21c7436b7a95acb3b3dc Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Tue, 29 Oct 2013 00:59:00 +0000
Subject: iio: Fix tcs3472 Kconfig dependencies

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/light/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig
index f98c2b509254..b0d65df3ede2 100644
--- a/drivers/iio/light/Kconfig
+++ b/drivers/iio/light/Kconfig
@@ -81,6 +81,8 @@ config SENSORS_LM3533
 config TCS3472
 	tristate "TAOS TCS3472 color light-to-digital converter"
 	depends on I2C
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
 	help
 	 If you say yes here you get support for the TAOS TCS3472
 	 family of color light-to-digital converters with IR filter.
-- 
cgit 


From 5fa4061301d246203276a663f293c0d2beaec128 Mon Sep 17 00:00:00 2001
From: Peter Meerwald <pmeerw@pmeerw.net>
Date: Tue, 29 Oct 2013 00:59:00 +0000
Subject: staging:iio: Fix hmc5843 Kconfig dependencies

trigger / buffer handling was introduced in changeset
cb9b9a82 staging:iio:hmc5843: Add trigger handling

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/staging/iio/magnetometer/Kconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/iio/magnetometer/Kconfig b/drivers/staging/iio/magnetometer/Kconfig
index a3ea69e9d800..34634da1f9f7 100644
--- a/drivers/staging/iio/magnetometer/Kconfig
+++ b/drivers/staging/iio/magnetometer/Kconfig
@@ -6,6 +6,8 @@ menu "Magnetometer sensors"
 config SENSORS_HMC5843
 	tristate "Honeywell HMC5843/5883/5883L 3-Axis Magnetometer"
 	depends on I2C
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
 	help
 	  Say Y here to add support for the Honeywell HMC5843, HMC5883 and
 	  HMC5883L 3-Axis Magnetometer (digital compass).
-- 
cgit 


From fe26980e03f435164777184a91c1e5f3b4ed22a5 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 24 Oct 2013 10:41:00 +0100
Subject: iio: adc: ti_am335x_adc: avoid double free of buffer.

The driver is missing the iio_buffer_attach() call. As such it will attempt
to free the buffer twice on removal.

Introduced in commit 9e69c9 ("iio: Add reference counting for buffers").

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/adc/ti_am335x_adc.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/iio/adc/ti_am335x_adc.c b/drivers/iio/adc/ti_am335x_adc.c
index 728411ec7642..d4d748214e4b 100644
--- a/drivers/iio/adc/ti_am335x_adc.c
+++ b/drivers/iio/adc/ti_am335x_adc.c
@@ -229,12 +229,15 @@ static int tiadc_iio_buffered_hardware_setup(struct iio_dev *indio_dev,
 	unsigned long flags,
 	const struct iio_buffer_setup_ops *setup_ops)
 {
+	struct iio_buffer *buffer;
 	int ret;
 
-	indio_dev->buffer = iio_kfifo_allocate(indio_dev);
-	if (!indio_dev->buffer)
+	buffer = iio_kfifo_allocate(indio_dev);
+	if (!buffer)
 		return -ENOMEM;
 
+	iio_device_attach_buffer(indio_dev, buffer);
+
 	ret = request_threaded_irq(irq,	pollfunc_th, pollfunc_bh,
 				flags, indio_dev->name, indio_dev);
 	if (ret)
-- 
cgit 


From 251b9c21d26ca9d210e7673f0819ee1f6c19402a Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Sat, 9 Nov 2013 13:12:28 +0100
Subject: regulator: gpio-regulator: Don't oops on missing regulator-type
 property

Catch missing regulator-type property in DT and return an error
gracefully instead of deferencing a NULL pointer and crashing.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/gpio-regulator.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c
index 98a98ffa7fe0..bcd827c363dc 100644
--- a/drivers/regulator/gpio-regulator.c
+++ b/drivers/regulator/gpio-regulator.c
@@ -139,6 +139,7 @@ of_get_gpio_regulator_config(struct device *dev, struct device_node *np)
 	struct property *prop;
 	const char *regtype;
 	int proplen, gpio, i;
+	int ret;
 
 	config = devm_kzalloc(dev,
 			sizeof(struct gpio_regulator_config),
@@ -202,7 +203,11 @@ of_get_gpio_regulator_config(struct device *dev, struct device_node *np)
 	}
 	config->nr_states = i;
 
-	of_property_read_string(np, "regulator-type", &regtype);
+	ret = of_property_read_string(np, "regulator-type", &regtype);
+	if (ret < 0) {
+		dev_err(dev, "Missing 'regulator-type' property\n");
+		return ERR_PTR(-EINVAL);
+	}
 
 	if (!strncmp("voltage", regtype, 7))
 		config->type = REGULATOR_VOLTAGE;
-- 
cgit 


From 70d7f98722a7a1df1a55d6a92d0ce959c7aba9fd Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Fri, 8 Nov 2013 16:35:55 +0100
Subject: uprobes: Fix the wrong usage of current->utask in
 uprobe_copy_process()

Commit aa59c53fd459 "uprobes: Change uprobe_copy_process() to dup
xol_area" has a stupid typo, we need to setup t->utask->vaddr but
the code wrongly uses current->utask.

Even with this bug dup_xol_work() works "in practice", but only
because get_unmapped_area(NULL, TASK_SIZE - PAGE_SIZE) likely
returns the same address every time.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
---
 kernel/events/uprobes.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 0ac346ae5edb..5e5695038d2d 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -1447,7 +1447,7 @@ void uprobe_copy_process(struct task_struct *t, unsigned long flags)
 	if (!work)
 		return uprobe_warn(t, "dup xol area");
 
-	utask->vaddr = area->vaddr;
+	t->utask->vaddr = area->vaddr;
 	init_task_work(work, dup_xol_work);
 	task_work_add(t, work, true);
 }
-- 
cgit 


From 2ded0980a6e4ae96bdd84bda66c7240967d86f3c Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Thu, 7 Nov 2013 19:41:57 +0100
Subject: uprobes: Fix the memory out of bound overwrite in copy_insn()

1. copy_insn() doesn't look very nice, all calculations are
   confusing and it is not immediately clear why do we read
   the 2nd page first.

2. The usage of inode->i_size is wrong on 32-bit machines.

3. "Instruction at end of binary" logic is simply wrong, it
   doesn't handle the case when uprobe->offset > inode->i_size.

   In this case "bytes" overflows, and __copy_insn() writes to
   the memory outside of uprobe->arch.insn.

   Yes, uprobe_register() checks i_size_read(), but this file
   can be truncated after that. All i_size checks are racy, we
   do this only to catch the obvious mistakes.

Change copy_insn() to call __copy_insn() in a loop, simplify
and fix the bytes/nbytes calculations.

Note: we do not care if we read extra bytes after inode->i_size
if we got the valid page. This is fine because the task gets the
same page after page-fault, and arch_uprobe_analyze_insn() can't
know how many bytes were actually read anyway.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
---
 kernel/events/uprobes.c | 43 +++++++++++++++++++++----------------------
 1 file changed, 21 insertions(+), 22 deletions(-)

diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index 5e5695038d2d..24b7d6ca871b 100644
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -504,9 +504,8 @@ static bool consumer_del(struct uprobe *uprobe, struct uprobe_consumer *uc)
 	return ret;
 }
 
-static int
-__copy_insn(struct address_space *mapping, struct file *filp, char *insn,
-			unsigned long nbytes, loff_t offset)
+static int __copy_insn(struct address_space *mapping, struct file *filp,
+			void *insn, int nbytes, loff_t offset)
 {
 	struct page *page;
 
@@ -528,28 +527,28 @@ __copy_insn(struct address_space *mapping, struct file *filp, char *insn,
 
 static int copy_insn(struct uprobe *uprobe, struct file *filp)
 {
-	struct address_space *mapping;
-	unsigned long nbytes;
-	int bytes;
-
-	nbytes = PAGE_SIZE - (uprobe->offset & ~PAGE_MASK);
-	mapping = uprobe->inode->i_mapping;
+	struct address_space *mapping = uprobe->inode->i_mapping;
+	loff_t offs = uprobe->offset;
+	void *insn = uprobe->arch.insn;
+	int size = MAX_UINSN_BYTES;
+	int len, err = -EIO;
 
-	/* Instruction at end of binary; copy only available bytes */
-	if (uprobe->offset + MAX_UINSN_BYTES > uprobe->inode->i_size)
-		bytes = uprobe->inode->i_size - uprobe->offset;
-	else
-		bytes = MAX_UINSN_BYTES;
+	/* Copy only available bytes, -EIO if nothing was read */
+	do {
+		if (offs >= i_size_read(uprobe->inode))
+			break;
 
-	/* Instruction at the page-boundary; copy bytes in second page */
-	if (nbytes < bytes) {
-		int err = __copy_insn(mapping, filp, uprobe->arch.insn + nbytes,
-				bytes - nbytes, uprobe->offset + nbytes);
+		len = min_t(int, size, PAGE_SIZE - (offs & ~PAGE_MASK));
+		err = __copy_insn(mapping, filp, insn, len, offs);
 		if (err)
-			return err;
-		bytes = nbytes;
-	}
-	return __copy_insn(mapping, filp, uprobe->arch.insn, bytes, uprobe->offset);
+			break;
+
+		insn += len;
+		offs += len;
+		size -= len;
+	} while (size);
+
+	return err;
 }
 
 static int prepare_uprobe(struct uprobe *uprobe, struct file *file,
-- 
cgit 


From a33c4a2663c19ac01e557d6b78806271eec2a150 Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Fri, 8 Nov 2013 10:23:34 +0800
Subject: net_sched: tbf: support of 64bit rates

With psched_ratecfg_precompute(), tbf can deal with 64bit rates.
Add two new attributes so that tc can use them to break the 32bit
limit.

Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Suggested-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/uapi/linux/pkt_sched.h |  2 ++
 net/sched/sch_tbf.c            | 22 ++++++++++++++++++----
 2 files changed, 20 insertions(+), 4 deletions(-)

diff --git a/include/uapi/linux/pkt_sched.h b/include/uapi/linux/pkt_sched.h
index f2624b549e61..307f293477e8 100644
--- a/include/uapi/linux/pkt_sched.h
+++ b/include/uapi/linux/pkt_sched.h
@@ -171,6 +171,8 @@ enum {
 	TCA_TBF_PARMS,
 	TCA_TBF_RTAB,
 	TCA_TBF_PTAB,
+	TCA_TBF_RATE64,
+	TCA_TBF_PRATE64,
 	__TCA_TBF_MAX,
 };
 
diff --git a/net/sched/sch_tbf.c b/net/sched/sch_tbf.c
index b0571224f3c9..68f98595819c 100644
--- a/net/sched/sch_tbf.c
+++ b/net/sched/sch_tbf.c
@@ -266,20 +266,23 @@ static const struct nla_policy tbf_policy[TCA_TBF_MAX + 1] = {
 	[TCA_TBF_PARMS]	= { .len = sizeof(struct tc_tbf_qopt) },
 	[TCA_TBF_RTAB]	= { .type = NLA_BINARY, .len = TC_RTAB_SIZE },
 	[TCA_TBF_PTAB]	= { .type = NLA_BINARY, .len = TC_RTAB_SIZE },
+	[TCA_TBF_RATE64]	= { .type = NLA_U64 },
+	[TCA_TBF_PRATE64]	= { .type = NLA_U64 },
 };
 
 static int tbf_change(struct Qdisc *sch, struct nlattr *opt)
 {
 	int err;
 	struct tbf_sched_data *q = qdisc_priv(sch);
-	struct nlattr *tb[TCA_TBF_PTAB + 1];
+	struct nlattr *tb[TCA_TBF_MAX + 1];
 	struct tc_tbf_qopt *qopt;
 	struct qdisc_rate_table *rtab = NULL;
 	struct qdisc_rate_table *ptab = NULL;
 	struct Qdisc *child = NULL;
 	int max_size, n;
+	u64 rate64 = 0, prate64 = 0;
 
-	err = nla_parse_nested(tb, TCA_TBF_PTAB, opt, tbf_policy);
+	err = nla_parse_nested(tb, TCA_TBF_MAX, opt, tbf_policy);
 	if (err < 0)
 		return err;
 
@@ -341,9 +344,13 @@ static int tbf_change(struct Qdisc *sch, struct nlattr *opt)
 	q->tokens = q->buffer;
 	q->ptokens = q->mtu;
 
-	psched_ratecfg_precompute(&q->rate, &rtab->rate, 0);
+	if (tb[TCA_TBF_RATE64])
+		rate64 = nla_get_u64(tb[TCA_TBF_RATE64]);
+	psched_ratecfg_precompute(&q->rate, &rtab->rate, rate64);
 	if (ptab) {
-		psched_ratecfg_precompute(&q->peak, &ptab->rate, 0);
+		if (tb[TCA_TBF_PRATE64])
+			prate64 = nla_get_u64(tb[TCA_TBF_PRATE64]);
+		psched_ratecfg_precompute(&q->peak, &ptab->rate, prate64);
 		q->peak_present = true;
 	} else {
 		q->peak_present = false;
@@ -402,6 +409,13 @@ static int tbf_dump(struct Qdisc *sch, struct sk_buff *skb)
 	opt.buffer = PSCHED_NS2TICKS(q->buffer);
 	if (nla_put(skb, TCA_TBF_PARMS, sizeof(opt), &opt))
 		goto nla_put_failure;
+	if (q->rate.rate_bytes_ps >= (1ULL << 32) &&
+	    nla_put_u64(skb, TCA_TBF_RATE64, q->rate.rate_bytes_ps))
+		goto nla_put_failure;
+	if (q->peak_present &&
+	    q->peak.rate_bytes_ps >= (1ULL << 32) &&
+	    nla_put_u64(skb, TCA_TBF_PRATE64, q->peak.rate_bytes_ps))
+		goto nla_put_failure;
 
 	nla_nest_end(skb, nest);
 	return skb->len;
-- 
cgit 


From 4e3faf88638ceb01523e0bd3db3d0081c6b0c2ab Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Fri, 4 Oct 2013 12:56:39 +0200
Subject: MAINTAINERS: mv643xx_eth: take over maintainership from Lennart

Lennart says: "I haven't been able to spend time on mv643xx_eth for a
while now, so if you want to take over maintainership, I'd be fine with
that."

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 MAINTAINERS | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 3e1014b87e01..ea07b9304475 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5353,7 +5353,7 @@ S:	Orphan
 F:	drivers/net/wireless/libertas/
 
 MARVELL MV643XX ETHERNET DRIVER
-M:	Lennert Buytenhek <buytenh@wantstofly.org>
+M:	Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
 L:	netdev@vger.kernel.org
 S:	Maintained
 F:	drivers/net/ethernet/marvell/mv643xx_eth.*
-- 
cgit 


From 99ba2ae4cd876bbcedb01d94c1a7952ce171418e Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Mon, 21 Oct 2013 11:44:57 +0100
Subject: dm cache policy mq: protect residency method with existing mutex

It is safe to use a mutex in mq_residency() at this point since it is
only called from ioctl context.  But future-proof mq_residency() by
using might_sleep() to catch new contexts that cannot sleep.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-cache-policy-mq.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/md/dm-cache-policy-mq.c b/drivers/md/dm-cache-policy-mq.c
index 4296155090b2..db490f74c7f8 100644
--- a/drivers/md/dm-cache-policy-mq.c
+++ b/drivers/md/dm-cache-policy-mq.c
@@ -1001,10 +1001,14 @@ static void mq_force_mapping(struct dm_cache_policy *p,
 
 static dm_cblock_t mq_residency(struct dm_cache_policy *p)
 {
+	dm_cblock_t r;
 	struct mq_policy *mq = to_mq_policy(p);
 
-	/* FIXME: lock mutex, not sure we can block here */
-	return to_cblock(mq->nr_cblocks_allocated);
+	mutex_lock(&mq->lock);
+	r = to_cblock(mq->nr_cblocks_allocated);
+	mutex_unlock(&mq->lock);
+
+	return r;
 }
 
 static void mq_tick(struct dm_cache_policy *p)
-- 
cgit 


From f8e5f01a3266e68e29024edc2bf2dbf81a864f41 Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Mon, 21 Oct 2013 12:51:45 +0100
Subject: dm cache: io destined for the cache device can now serve as tick bios

Previously only origin bios could trigger ticks, which meant if all
the io was destined for the cache no ticks were generated.  If no ticks
are generated then multiple hits, and movements in general, are
attributed to the same tick.

Only a stop gap fix, we need a better solution.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-cache-target.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 29569768ffbf..c1e92664307c 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -605,6 +605,7 @@ static void remap_to_origin_clear_discard(struct cache *cache, struct bio *bio,
 static void remap_to_cache_dirty(struct cache *cache, struct bio *bio,
 				 dm_oblock_t oblock, dm_cblock_t cblock)
 {
+	check_if_tick_bio_needed(cache, bio);
 	remap_to_cache(cache, bio, cblock);
 	if (bio_data_dir(bio) == WRITE) {
 		set_dirty(cache, oblock, cblock);
-- 
cgit 


From 66cb1910df17b38334153462ec8166e48058035f Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Wed, 30 Oct 2013 17:11:58 +0000
Subject: dm cache: fix a race condition between queuing new migrations and
 quiescing for a shutdown

The code that was trying to do this was inadequate.  The postsuspend
method (in ioctl context), needs to wait for the worker thread to
acknowledge the request to quiesce.  Otherwise the migration count may
drop to zero temporarily before the worker thread realises we're
quiescing.  In this case the target will be taken down, but the worker
thread may have issued a new migration, which will cause an oops when
it completes.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Cc: stable@vger.kernel.org # 3.9+
---
 drivers/md/dm-cache-target.c | 54 ++++++++++++++++++++++++++++++++------------
 1 file changed, 40 insertions(+), 14 deletions(-)

diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index c1e92664307c..25d3253e72d0 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -148,6 +148,9 @@ struct cache {
 	wait_queue_head_t migration_wait;
 	atomic_t nr_migrations;
 
+	wait_queue_head_t quiescing_wait;
+	atomic_t quiescing_ack;
+
 	/*
 	 * cache_size entries, dirty if set
 	 */
@@ -749,8 +752,9 @@ static void cell_defer(struct cache *cache, struct dm_bio_prison_cell *cell,
 
 static void cleanup_migration(struct dm_cache_migration *mg)
 {
-	dec_nr_migrations(mg->cache);
+	struct cache *cache = mg->cache;
 	free_migration(mg);
+	dec_nr_migrations(cache);
 }
 
 static void migration_failure(struct dm_cache_migration *mg)
@@ -1347,34 +1351,51 @@ static void writeback_some_dirty_blocks(struct cache *cache)
 /*----------------------------------------------------------------
  * Main worker loop
  *--------------------------------------------------------------*/
-static void start_quiescing(struct cache *cache)
+static bool is_quiescing(struct cache *cache)
 {
+	int r;
 	unsigned long flags;
 
 	spin_lock_irqsave(&cache->lock, flags);
-	cache->quiescing = 1;
+	r = cache->quiescing;
 	spin_unlock_irqrestore(&cache->lock, flags);
+
+	return r;
 }
 
-static void stop_quiescing(struct cache *cache)
+static void ack_quiescing(struct cache *cache)
+{
+	if (is_quiescing(cache)) {
+		atomic_inc(&cache->quiescing_ack);
+		wake_up(&cache->quiescing_wait);
+	}
+}
+
+static void wait_for_quiescing_ack(struct cache *cache)
+{
+	wait_event(cache->quiescing_wait, atomic_read(&cache->quiescing_ack));
+}
+
+static void start_quiescing(struct cache *cache)
 {
 	unsigned long flags;
 
 	spin_lock_irqsave(&cache->lock, flags);
-	cache->quiescing = 0;
+	cache->quiescing = true;
 	spin_unlock_irqrestore(&cache->lock, flags);
+
+	wait_for_quiescing_ack(cache);
 }
 
-static bool is_quiescing(struct cache *cache)
+static void stop_quiescing(struct cache *cache)
 {
-	int r;
 	unsigned long flags;
 
 	spin_lock_irqsave(&cache->lock, flags);
-	r = cache->quiescing;
+	cache->quiescing = false;
 	spin_unlock_irqrestore(&cache->lock, flags);
 
-	return r;
+	atomic_set(&cache->quiescing_ack, 0);
 }
 
 static void wait_for_migrations(struct cache *cache)
@@ -1421,16 +1442,15 @@ static void do_worker(struct work_struct *ws)
 	struct cache *cache = container_of(ws, struct cache, worker);
 
 	do {
-		if (!is_quiescing(cache))
+		if (!is_quiescing(cache)) {
+			writeback_some_dirty_blocks(cache);
+			process_deferred_writethrough_bios(cache);
 			process_deferred_bios(cache);
+		}
 
 		process_migrations(cache, &cache->quiesced_migrations, issue_copy);
 		process_migrations(cache, &cache->completed_migrations, complete_migration);
 
-		writeback_some_dirty_blocks(cache);
-
-		process_deferred_writethrough_bios(cache);
-
 		if (commit_if_needed(cache)) {
 			process_deferred_flush_bios(cache, false);
 
@@ -1443,6 +1463,9 @@ static void do_worker(struct work_struct *ws)
 			process_migrations(cache, &cache->need_commit_migrations,
 					   migration_success_post_commit);
 		}
+
+		ack_quiescing(cache);
+
 	} while (more_work(cache));
 }
 
@@ -2006,6 +2029,9 @@ static int cache_create(struct cache_args *ca, struct cache **result)
 	atomic_set(&cache->nr_migrations, 0);
 	init_waitqueue_head(&cache->migration_wait);
 
+	init_waitqueue_head(&cache->quiescing_wait);
+	atomic_set(&cache->quiescing_ack, 0);
+
 	r = -ENOMEM;
 	cache->nr_dirty = 0;
 	cache->dirty_bitset = alloc_bitset(from_cblock(cache->cache_size));
-- 
cgit 


From 238f8363b6661fd9dd9aae854917ab9c661f3652 Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Wed, 30 Oct 2013 17:29:30 +0000
Subject: dm cache: improve efficiency of quiescing flag management

Make the quiescing flag an atomic_t and stop protecting it with a spin
lock.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-cache-target.c | 27 +++++----------------------
 1 file changed, 5 insertions(+), 22 deletions(-)

diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 25d3253e72d0..50afdf72285b 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -149,6 +149,7 @@ struct cache {
 	atomic_t nr_migrations;
 
 	wait_queue_head_t quiescing_wait;
+	atomic_t quiescing;
 	atomic_t quiescing_ack;
 
 	/*
@@ -189,7 +190,6 @@ struct cache {
 
 	bool need_tick_bio:1;
 	bool sized:1;
-	bool quiescing:1;
 	bool commit_requested:1;
 	bool loaded_mappings:1;
 	bool loaded_discards:1;
@@ -1353,14 +1353,7 @@ static void writeback_some_dirty_blocks(struct cache *cache)
  *--------------------------------------------------------------*/
 static bool is_quiescing(struct cache *cache)
 {
-	int r;
-	unsigned long flags;
-
-	spin_lock_irqsave(&cache->lock, flags);
-	r = cache->quiescing;
-	spin_unlock_irqrestore(&cache->lock, flags);
-
-	return r;
+	return atomic_read(&cache->quiescing);
 }
 
 static void ack_quiescing(struct cache *cache)
@@ -1378,23 +1371,13 @@ static void wait_for_quiescing_ack(struct cache *cache)
 
 static void start_quiescing(struct cache *cache)
 {
-	unsigned long flags;
-
-	spin_lock_irqsave(&cache->lock, flags);
-	cache->quiescing = true;
-	spin_unlock_irqrestore(&cache->lock, flags);
-
+	atomic_inc(&cache->quiescing);
 	wait_for_quiescing_ack(cache);
 }
 
 static void stop_quiescing(struct cache *cache)
 {
-	unsigned long flags;
-
-	spin_lock_irqsave(&cache->lock, flags);
-	cache->quiescing = false;
-	spin_unlock_irqrestore(&cache->lock, flags);
-
+	atomic_set(&cache->quiescing, 0);
 	atomic_set(&cache->quiescing_ack, 0);
 }
 
@@ -2030,6 +2013,7 @@ static int cache_create(struct cache_args *ca, struct cache **result)
 	init_waitqueue_head(&cache->migration_wait);
 
 	init_waitqueue_head(&cache->quiescing_wait);
+	atomic_set(&cache->quiescing, 0);
 	atomic_set(&cache->quiescing_ack, 0);
 
 	r = -ENOMEM;
@@ -2091,7 +2075,6 @@ static int cache_create(struct cache_args *ca, struct cache **result)
 
 	cache->need_tick_bio = true;
 	cache->sized = false;
-	cache->quiescing = false;
 	cache->commit_requested = false;
 	cache->loaded_mappings = false;
 	cache->loaded_discards = false;
-- 
cgit 


From 3351937e4a6054a925d306e36c4cddc7723b1579 Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Thu, 24 Oct 2013 14:10:28 -0400
Subject: dm cache policy: remove return from void policy_remove_mapping

No need to return from a void function.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-cache-policy-internal.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/dm-cache-policy-internal.h b/drivers/md/dm-cache-policy-internal.h
index 0928abdc49f0..a75f7e7498eb 100644
--- a/drivers/md/dm-cache-policy-internal.h
+++ b/drivers/md/dm-cache-policy-internal.h
@@ -61,7 +61,7 @@ static inline int policy_writeback_work(struct dm_cache_policy *p,
 
 static inline void policy_remove_mapping(struct dm_cache_policy *p, dm_oblock_t oblock)
 {
-	return p->remove_mapping(p, oblock);
+	p->remove_mapping(p, oblock);
 }
 
 static inline void policy_force_mapping(struct dm_cache_policy *p,
-- 
cgit 


From 0184b44e321dda893d4d4be33499d404718c3a86 Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Thu, 24 Oct 2013 14:10:28 -0400
Subject: dm cache policy mq: a few small fixes

Rename takeout_queue to concat_queue.

Fix a harmless bug in mq policies pop() function.  Currently pop()
always succeeds, with up coming changes this wont be the case.

Fix typo in comment above pre_cache_to_cache prototype.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-cache-policy-mq.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/md/dm-cache-policy-mq.c b/drivers/md/dm-cache-policy-mq.c
index db490f74c7f8..a9a25de5b011 100644
--- a/drivers/md/dm-cache-policy-mq.c
+++ b/drivers/md/dm-cache-policy-mq.c
@@ -311,7 +311,7 @@ struct mq_policy {
 
 /*----------------------------------------------------------------*/
 /* Free/alloc mq cache entry structures. */
-static void takeout_queue(struct list_head *lh, struct queue *q)
+static void concat_queue(struct list_head *lh, struct queue *q)
 {
 	unsigned level;
 
@@ -323,8 +323,8 @@ static void free_entries(struct mq_policy *mq)
 {
 	struct entry *e, *tmp;
 
-	takeout_queue(&mq->free, &mq->pre_cache);
-	takeout_queue(&mq->free, &mq->cache);
+	concat_queue(&mq->free, &mq->pre_cache);
+	concat_queue(&mq->free, &mq->cache);
 
 	list_for_each_entry_safe(e, tmp, &mq->free, list)
 		kmem_cache_free(mq_entry_cache, e);
@@ -531,14 +531,16 @@ static void del(struct mq_policy *mq, struct entry *e)
  */
 static struct entry *pop(struct mq_policy *mq, struct queue *q)
 {
-	struct entry *e = container_of(queue_pop(q), struct entry, list);
+	struct entry *e;
+	struct list_head *h = queue_pop(q);
 
-	if (e) {
-		hash_remove(e);
+	if (!h)
+		return NULL;
 
-		if (e->in_cache)
-			free_cblock(mq, e->cblock);
-	}
+	e = container_of(h, struct entry, list);
+	hash_remove(e);
+	if (e->in_cache)
+		free_cblock(mq, e->cblock);
 
 	return e;
 }
@@ -697,7 +699,7 @@ static int cache_entry_found(struct mq_policy *mq,
 }
 
 /*
- * Moves and entry from the pre_cache to the cache.  The main work is
+ * Moves an entry from the pre_cache to the cache.  The main work is
  * finding which cache block to use.
  */
 static int pre_cache_to_cache(struct mq_policy *mq, struct entry *e,
-- 
cgit 


From dd8b0c2096e53b336324e99455efcc498599ba0f Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Thu, 24 Oct 2013 14:10:28 -0400
Subject: dm cache metadata: return bool from __superblock_all_zeroes

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-cache-metadata.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/md/dm-cache-metadata.c b/drivers/md/dm-cache-metadata.c
index 1af7255bbffb..2262b4e57a28 100644
--- a/drivers/md/dm-cache-metadata.c
+++ b/drivers/md/dm-cache-metadata.c
@@ -198,7 +198,7 @@ static int superblock_lock(struct dm_cache_metadata *cmd,
 
 /*----------------------------------------------------------------*/
 
-static int __superblock_all_zeroes(struct dm_block_manager *bm, int *result)
+static int __superblock_all_zeroes(struct dm_block_manager *bm, bool *result)
 {
 	int r;
 	unsigned i;
@@ -214,10 +214,10 @@ static int __superblock_all_zeroes(struct dm_block_manager *bm, int *result)
 		return r;
 
 	data_le = dm_block_data(b);
-	*result = 1;
+	*result = true;
 	for (i = 0; i < sb_block_size; i++) {
 		if (data_le[i] != zero) {
-			*result = 0;
+			*result = false;
 			break;
 		}
 	}
@@ -411,7 +411,8 @@ bad:
 static int __open_or_format_metadata(struct dm_cache_metadata *cmd,
 				     bool format_device)
 {
-	int r, unformatted;
+	int r;
+	bool unformatted = false;
 
 	r = __superblock_all_zeroes(cmd->bm, &unformatted);
 	if (r)
-- 
cgit 


From 4cb3e1db21a94781bbf05238687c3e8a715ab2f9 Mon Sep 17 00:00:00 2001
From: Mikulas Patocka <mpatocka@redhat.com>
Date: Tue, 1 Oct 2013 18:35:39 -0400
Subject: dm cache: return -EINVAL if the user specifies unknown cache policy

Return -EINVAL when the specified cache policy is unknown rather than
returning -ENOMEM.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-cache-policy.c |  4 ++--
 drivers/md/dm-cache-target.c | 13 +++++++------
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/md/dm-cache-policy.c b/drivers/md/dm-cache-policy.c
index 21c03c570c06..d80057968407 100644
--- a/drivers/md/dm-cache-policy.c
+++ b/drivers/md/dm-cache-policy.c
@@ -119,13 +119,13 @@ struct dm_cache_policy *dm_cache_policy_create(const char *name,
 	type = get_policy(name);
 	if (!type) {
 		DMWARN("unknown policy type");
-		return NULL;
+		return ERR_PTR(-EINVAL);
 	}
 
 	p = type->create(cache_size, origin_size, cache_block_size);
 	if (!p) {
 		put_policy(type);
-		return NULL;
+		return ERR_PTR(-ENOMEM);
 	}
 	p->private = type;
 
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 50afdf72285b..81fe85757585 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -1879,14 +1879,15 @@ static int set_config_values(struct cache *cache, int argc, const char **argv)
 static int create_cache_policy(struct cache *cache, struct cache_args *ca,
 			       char **error)
 {
-	cache->policy =	dm_cache_policy_create(ca->policy_name,
-					       cache->cache_size,
-					       cache->origin_sectors,
-					       cache->sectors_per_block);
-	if (!cache->policy) {
+	struct dm_cache_policy *p = dm_cache_policy_create(ca->policy_name,
+							   cache->cache_size,
+							   cache->origin_sectors,
+							   cache->sectors_per_block);
+	if (IS_ERR(p)) {
 		*error = "Error creating cache's policy";
-		return -ENOMEM;
+		return PTR_ERR(p);
 	}
+	cache->policy = p;
 
 	return 0;
 }
-- 
cgit 


From 80f659f3f546beddc5abbec4f1c5f45d22d81348 Mon Sep 17 00:00:00 2001
From: Heinz Mauelshagen <heinzm@redhat.com>
Date: Mon, 14 Oct 2013 17:10:47 +0200
Subject: dm cache: use cell_defer() boolean argument consistently

Fix a few cell_defer() calls that weren't passing a bool.

Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-cache-target.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 81fe85757585..dc63eb2aa69c 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -770,13 +770,13 @@ static void migration_failure(struct dm_cache_migration *mg)
 		DMWARN_LIMIT("demotion failed; couldn't copy block");
 		policy_force_mapping(cache->policy, mg->new_oblock, mg->old_oblock);
 
-		cell_defer(cache, mg->old_ocell, mg->promote ? 0 : 1);
+		cell_defer(cache, mg->old_ocell, mg->promote ? false : true);
 		if (mg->promote)
-			cell_defer(cache, mg->new_ocell, 1);
+			cell_defer(cache, mg->new_ocell, true);
 	} else {
 		DMWARN_LIMIT("promotion failed; couldn't copy block");
 		policy_remove_mapping(cache->policy, mg->new_oblock);
-		cell_defer(cache, mg->new_ocell, 1);
+		cell_defer(cache, mg->new_ocell, true);
 	}
 
 	cleanup_migration(mg);
@@ -828,7 +828,7 @@ static void migration_success_post_commit(struct dm_cache_migration *mg)
 		return;
 
 	} else if (mg->demote) {
-		cell_defer(cache, mg->old_ocell, mg->promote ? 0 : 1);
+		cell_defer(cache, mg->old_ocell, mg->promote ? false : true);
 
 		if (mg->promote) {
 			mg->demote = false;
-- 
cgit 


From 2c2263c93f70c6abdce90ad96a854760532aa52f Mon Sep 17 00:00:00 2001
From: Heinz Mauelshagen <heinzm@redhat.com>
Date: Mon, 14 Oct 2013 17:14:45 +0200
Subject: dm cache: log error message if dm_kcopyd_copy() fails

A migration failure should be logged (albeit limited).

Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-cache-target.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index dc63eb2aa69c..05a10c02043f 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -886,8 +886,10 @@ static void issue_copy_real(struct dm_cache_migration *mg)
 		r = dm_kcopyd_copy(cache->copier, &o_region, 1, &c_region, 0, copy_complete, mg);
 	}
 
-	if (r < 0)
+	if (r < 0) {
+		DMERR_LIMIT("issuing migration failed");
 		migration_failure(mg);
+	}
 }
 
 static void avoid_copy(struct dm_cache_migration *mg)
-- 
cgit 


From da31a0787a2ac92dd219ce0d33322160b66d6a01 Mon Sep 17 00:00:00 2001
From: Milan Broz <gmazyland@gmail.com>
Date: Mon, 28 Oct 2013 23:21:03 +0100
Subject: dm crypt: properly handle extra key string in initialization

Some encryption modes use extra keys (e.g. loopAES has IV seed) which
are not used in block cipher initialization but are part of key string
in table constructor.

This patch adds an additional field which describes the length of the
extra key(s) and substracts it before real key encryption setting.

The key_size always includes the size, in bytes, of the key provided
in mapping table.

The key_parts describes how many parts (usually keys) are contained in
the whole key buffer.  And key_extra_size contains size in bytes of
additional keys part (this number of bytes must be subtracted because it
is processed by the IV generator).

| K1 | K2 | .... | K64 |      Kiv       |
|----------- key_size ----------------- |
|                      |-key_extra_size-|
|     [64 keys]        |  [1 key]       | => key_parts = 65

Example where key string contains main key K, whitening key
Kw and IV seed Kiv:

|     K       |   Kiv   |       Kw      |
|--------------- key_size --------------|
|             |-----key_extra_size------|
|  [1 key]    | [1 key] |     [1 key]   | => key_parts = 3

Because key_extra_size is calculated during IV mode setting, key
initialization is moved after this step.

For now, this change has no effect to supported modes (thanks to ilog2
rounding) but it is required by the following patch.

Also, fix a sparse warning in crypt_iv_lmk_one().

Signed-off-by: Milan Broz <gmazyland@gmail.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-crypt.c | 29 ++++++++++++++++++-----------
 1 file changed, 18 insertions(+), 11 deletions(-)

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 0fce0bc1a957..e0c61a326550 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -171,7 +171,8 @@ struct crypt_config {
 
 	unsigned long flags;
 	unsigned int key_size;
-	unsigned int key_parts;
+	unsigned int key_parts;      /* independent parts in key buffer */
+	unsigned int key_extra_size; /* additional keys length */
 	u8 key[0];
 };
 
@@ -530,7 +531,7 @@ static int crypt_iv_lmk_one(struct crypt_config *cc, u8 *iv,
 		char ctx[crypto_shash_descsize(lmk->hash_tfm)];
 	} sdesc;
 	struct md5_state md5state;
-	u32 buf[4];
+	__le32 buf[4];
 	int i, r;
 
 	sdesc.desc.tfm = lmk->hash_tfm;
@@ -1274,9 +1275,12 @@ static int crypt_alloc_tfms(struct crypt_config *cc, char *ciphermode)
 
 static int crypt_setkey_allcpus(struct crypt_config *cc)
 {
-	unsigned subkey_size = cc->key_size >> ilog2(cc->tfms_count);
+	unsigned subkey_size;
 	int err = 0, i, r;
 
+	/* Ignore extra keys (which are used for IV etc) */
+	subkey_size = (cc->key_size - cc->key_extra_size) >> ilog2(cc->tfms_count);
+
 	for (i = 0; i < cc->tfms_count; i++) {
 		r = crypto_ablkcipher_setkey(cc->tfms[i],
 					     cc->key + (i * subkey_size),
@@ -1409,6 +1413,7 @@ static int crypt_ctr_cipher(struct dm_target *ti,
 		return -EINVAL;
 	}
 	cc->key_parts = cc->tfms_count;
+	cc->key_extra_size = 0;
 
 	cc->cipher = kstrdup(cipher, GFP_KERNEL);
 	if (!cc->cipher)
@@ -1460,13 +1465,6 @@ static int crypt_ctr_cipher(struct dm_target *ti,
 		goto bad;
 	}
 
-	/* Initialize and set key */
-	ret = crypt_set_key(cc, key);
-	if (ret < 0) {
-		ti->error = "Error decoding and setting key";
-		goto bad;
-	}
-
 	/* Initialize IV */
 	cc->iv_size = crypto_ablkcipher_ivsize(any_tfm(cc));
 	if (cc->iv_size)
@@ -1497,14 +1495,23 @@ static int crypt_ctr_cipher(struct dm_target *ti,
 		 * to length of provided multi-key string.
 		 * If present (version 3), last key is used as IV seed.
 		 */
-		if (cc->key_size % cc->key_parts)
+		if (cc->key_size % cc->key_parts) {
 			cc->key_parts++;
+			cc->key_extra_size = cc->key_size / cc->key_parts;
+		}
 	} else {
 		ret = -EINVAL;
 		ti->error = "Invalid IV mode";
 		goto bad;
 	}
 
+	/* Initialize and set key */
+	ret = crypt_set_key(cc, key);
+	if (ret < 0) {
+		ti->error = "Error decoding and setting key";
+		goto bad;
+	}
+
 	/* Allocate IV */
 	if (cc->iv_gen_ops && cc->iv_gen_ops->ctr) {
 		ret = cc->iv_gen_ops->ctr(cc, ti, ivopts);
-- 
cgit 


From ed04d98169f1c33ebc79f510c855eed83924d97f Mon Sep 17 00:00:00 2001
From: Milan Broz <gmazyland@gmail.com>
Date: Mon, 28 Oct 2013 23:21:04 +0100
Subject: dm crypt: add TCW IV mode for old CBC TCRYPT containers

dm-crypt can already activate TCRYPT (TrueCrypt compatible) containers
in LRW or XTS block encryption mode.

TCRYPT containers prior to version 4.1 use CBC mode with some additional
tweaks, this patch adds support for these containers.

This new mode is implemented using special IV generator named TCW
(TrueCrypt IV with whitening).  TCW IV only supports containers that are
encrypted with one cipher (Tested with AES, Twofish, Serpent, CAST5 and
TripleDES).

While this mode is legacy and is known to be vulnerable to some
watermarking attacks (e.g. revealing of hidden disk existence) it can
still be useful to activate old containers without using 3rd party
software or for independent forensic analysis of such containers.

(Both the userspace and kernel code is an independent implementation
based on the format documentation and it completely avoids use of
original source code.)

The TCW IV generator uses two additional keys: Kw (whitening seed, size
is always 16 bytes - TCW_WHITENING_SIZE) and Kiv (IV seed, size is
always the IV size of the selected cipher).  These keys are concatenated
at the end of the main encryption key provided in mapping table.

While whitening is completely independent from IV, it is implemented
inside IV generator for simplification.

The whitening value is always 16 bytes long and is calculated per sector
from provided Kw as initial seed, xored with sector number and mixed
with CRC32 algorithm.  Resulting value is xored with ciphertext sector
content.

IV is calculated from the provided Kiv as initial IV seed and xored with
sector number.

Detailed calculation can be found in the Truecrypt documentation for
version < 4.1 and will also be described on dm-crypt site, see:
http://code.google.com/p/cryptsetup/wiki/DMCrypt

The experimental support for activation of these containers is already
present in git devel brach of cryptsetup.

Signed-off-by: Milan Broz <gmazyland@gmail.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 Documentation/device-mapper/dm-crypt.txt |  11 +-
 drivers/md/dm-crypt.c                    | 185 ++++++++++++++++++++++++++++++-
 2 files changed, 192 insertions(+), 4 deletions(-)

diff --git a/Documentation/device-mapper/dm-crypt.txt b/Documentation/device-mapper/dm-crypt.txt
index 2c656ae43ba7..c81839b52c4d 100644
--- a/Documentation/device-mapper/dm-crypt.txt
+++ b/Documentation/device-mapper/dm-crypt.txt
@@ -4,12 +4,15 @@ dm-crypt
 Device-Mapper's "crypt" target provides transparent encryption of block devices
 using the kernel crypto API.
 
+For a more detailed description of supported parameters see:
+http://code.google.com/p/cryptsetup/wiki/DMCrypt
+
 Parameters: <cipher> <key> <iv_offset> <device path> \
 	      <offset> [<#opt_params> <opt_params>]
 
 <cipher>
     Encryption cipher and an optional IV generation mode.
-    (In format cipher[:keycount]-chainmode-ivopts:ivmode).
+    (In format cipher[:keycount]-chainmode-ivmode[:ivopts]).
     Examples:
        des
        aes-cbc-essiv:sha256
@@ -19,7 +22,11 @@ Parameters: <cipher> <key> <iv_offset> <device path> \
 
 <key>
     Key used for encryption. It is encoded as a hexadecimal number.
-    You can only use key sizes that are valid for the selected cipher.
+    You can only use key sizes that are valid for the selected cipher
+    in combination with the selected iv mode.
+    Note that for some iv modes the key string can contain additional
+    keys (for example IV seed) so the key contains more parts concatenated
+    into a single string.
 
 <keycount>
     Multi-key compatibility mode. You can define <keycount> keys and
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index e0c61a326550..50ea7ed24dce 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -2,6 +2,7 @@
  * Copyright (C) 2003 Christophe Saout <christophe@saout.de>
  * Copyright (C) 2004 Clemens Fruhwirth <clemens@endorphin.org>
  * Copyright (C) 2006-2009 Red Hat, Inc. All rights reserved.
+ * Copyright (C) 2013 Milan Broz <gmazyland@gmail.com>
  *
  * This file is released under the GPL.
  */
@@ -98,6 +99,13 @@ struct iv_lmk_private {
 	u8 *seed;
 };
 
+#define TCW_WHITENING_SIZE 16
+struct iv_tcw_private {
+	struct crypto_shash *crc32_tfm;
+	u8 *iv_seed;
+	u8 *whitening;
+};
+
 /*
  * Crypt: maps a linear range of a block device
  * and encrypts / decrypts at the same time.
@@ -139,6 +147,7 @@ struct crypt_config {
 		struct iv_essiv_private essiv;
 		struct iv_benbi_private benbi;
 		struct iv_lmk_private lmk;
+		struct iv_tcw_private tcw;
 	} iv_gen_private;
 	sector_t iv_offset;
 	unsigned int iv_size;
@@ -231,6 +240,16 @@ static struct crypto_ablkcipher *any_tfm(struct crypt_config *cc)
  *         version 3: the same as version 2 with additional IV seed
  *                   (it uses 65 keys, last key is used as IV seed)
  *
+ * tcw:  Compatible implementation of the block chaining mode used
+ *       by the TrueCrypt device encryption system (prior to version 4.1).
+ *       For more info see: http://www.truecrypt.org
+ *       It operates on full 512 byte sectors and uses CBC
+ *       with an IV derived from initial key and the sector number.
+ *       In addition, whitening value is applied on every sector, whitening
+ *       is calculated from initial key, sector number and mixed using CRC32.
+ *       Note that this encryption scheme is vulnerable to watermarking attacks
+ *       and should be used for old compatible containers access only.
+ *
  * plumb: unimplemented, see:
  * http://article.gmane.org/gmane.linux.kernel.device-mapper.dm-crypt/454
  */
@@ -609,6 +628,153 @@ static int crypt_iv_lmk_post(struct crypt_config *cc, u8 *iv,
 	return r;
 }
 
+static void crypt_iv_tcw_dtr(struct crypt_config *cc)
+{
+	struct iv_tcw_private *tcw = &cc->iv_gen_private.tcw;
+
+	kzfree(tcw->iv_seed);
+	tcw->iv_seed = NULL;
+	kzfree(tcw->whitening);
+	tcw->whitening = NULL;
+
+	if (tcw->crc32_tfm && !IS_ERR(tcw->crc32_tfm))
+		crypto_free_shash(tcw->crc32_tfm);
+	tcw->crc32_tfm = NULL;
+}
+
+static int crypt_iv_tcw_ctr(struct crypt_config *cc, struct dm_target *ti,
+			    const char *opts)
+{
+	struct iv_tcw_private *tcw = &cc->iv_gen_private.tcw;
+
+	if (cc->key_size <= (cc->iv_size + TCW_WHITENING_SIZE)) {
+		ti->error = "Wrong key size for TCW";
+		return -EINVAL;
+	}
+
+	tcw->crc32_tfm = crypto_alloc_shash("crc32", 0, 0);
+	if (IS_ERR(tcw->crc32_tfm)) {
+		ti->error = "Error initializing CRC32 in TCW";
+		return PTR_ERR(tcw->crc32_tfm);
+	}
+
+	tcw->iv_seed = kzalloc(cc->iv_size, GFP_KERNEL);
+	tcw->whitening = kzalloc(TCW_WHITENING_SIZE, GFP_KERNEL);
+	if (!tcw->iv_seed || !tcw->whitening) {
+		crypt_iv_tcw_dtr(cc);
+		ti->error = "Error allocating seed storage in TCW";
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+static int crypt_iv_tcw_init(struct crypt_config *cc)
+{
+	struct iv_tcw_private *tcw = &cc->iv_gen_private.tcw;
+	int key_offset = cc->key_size - cc->iv_size - TCW_WHITENING_SIZE;
+
+	memcpy(tcw->iv_seed, &cc->key[key_offset], cc->iv_size);
+	memcpy(tcw->whitening, &cc->key[key_offset + cc->iv_size],
+	       TCW_WHITENING_SIZE);
+
+	return 0;
+}
+
+static int crypt_iv_tcw_wipe(struct crypt_config *cc)
+{
+	struct iv_tcw_private *tcw = &cc->iv_gen_private.tcw;
+
+	memset(tcw->iv_seed, 0, cc->iv_size);
+	memset(tcw->whitening, 0, TCW_WHITENING_SIZE);
+
+	return 0;
+}
+
+static int crypt_iv_tcw_whitening(struct crypt_config *cc,
+				  struct dm_crypt_request *dmreq,
+				  u8 *data)
+{
+	struct iv_tcw_private *tcw = &cc->iv_gen_private.tcw;
+	u64 sector = cpu_to_le64((u64)dmreq->iv_sector);
+	u8 buf[TCW_WHITENING_SIZE];
+	struct {
+		struct shash_desc desc;
+		char ctx[crypto_shash_descsize(tcw->crc32_tfm)];
+	} sdesc;
+	int i, r;
+
+	/* xor whitening with sector number */
+	memcpy(buf, tcw->whitening, TCW_WHITENING_SIZE);
+	crypto_xor(buf, (u8 *)&sector, 8);
+	crypto_xor(&buf[8], (u8 *)&sector, 8);
+
+	/* calculate crc32 for every 32bit part and xor it */
+	sdesc.desc.tfm = tcw->crc32_tfm;
+	sdesc.desc.flags = CRYPTO_TFM_REQ_MAY_SLEEP;
+	for (i = 0; i < 4; i++) {
+		r = crypto_shash_init(&sdesc.desc);
+		if (r)
+			goto out;
+		r = crypto_shash_update(&sdesc.desc, &buf[i * 4], 4);
+		if (r)
+			goto out;
+		r = crypto_shash_final(&sdesc.desc, &buf[i * 4]);
+		if (r)
+			goto out;
+	}
+	crypto_xor(&buf[0], &buf[12], 4);
+	crypto_xor(&buf[4], &buf[8], 4);
+
+	/* apply whitening (8 bytes) to whole sector */
+	for (i = 0; i < ((1 << SECTOR_SHIFT) / 8); i++)
+		crypto_xor(data + i * 8, buf, 8);
+out:
+	memset(buf, 0, sizeof(buf));
+	return r;
+}
+
+static int crypt_iv_tcw_gen(struct crypt_config *cc, u8 *iv,
+			    struct dm_crypt_request *dmreq)
+{
+	struct iv_tcw_private *tcw = &cc->iv_gen_private.tcw;
+	u64 sector = cpu_to_le64((u64)dmreq->iv_sector);
+	u8 *src;
+	int r = 0;
+
+	/* Remove whitening from ciphertext */
+	if (bio_data_dir(dmreq->ctx->bio_in) != WRITE) {
+		src = kmap_atomic(sg_page(&dmreq->sg_in));
+		r = crypt_iv_tcw_whitening(cc, dmreq, src + dmreq->sg_in.offset);
+		kunmap_atomic(src);
+	}
+
+	/* Calculate IV */
+	memcpy(iv, tcw->iv_seed, cc->iv_size);
+	crypto_xor(iv, (u8 *)&sector, 8);
+	if (cc->iv_size > 8)
+		crypto_xor(&iv[8], (u8 *)&sector, cc->iv_size - 8);
+
+	return r;
+}
+
+static int crypt_iv_tcw_post(struct crypt_config *cc, u8 *iv,
+			     struct dm_crypt_request *dmreq)
+{
+	u8 *dst;
+	int r;
+
+	if (bio_data_dir(dmreq->ctx->bio_in) != WRITE)
+		return 0;
+
+	/* Apply whitening on ciphertext */
+	dst = kmap_atomic(sg_page(&dmreq->sg_out));
+	r = crypt_iv_tcw_whitening(cc, dmreq, dst + dmreq->sg_out.offset);
+	kunmap_atomic(dst);
+
+	return r;
+}
+
 static struct crypt_iv_operations crypt_iv_plain_ops = {
 	.generator = crypt_iv_plain_gen
 };
@@ -644,6 +810,15 @@ static struct crypt_iv_operations crypt_iv_lmk_ops = {
 	.post	   = crypt_iv_lmk_post
 };
 
+static struct crypt_iv_operations crypt_iv_tcw_ops = {
+	.ctr	   = crypt_iv_tcw_ctr,
+	.dtr	   = crypt_iv_tcw_dtr,
+	.init	   = crypt_iv_tcw_init,
+	.wipe	   = crypt_iv_tcw_wipe,
+	.generator = crypt_iv_tcw_gen,
+	.post	   = crypt_iv_tcw_post
+};
+
 static void crypt_convert_init(struct crypt_config *cc,
 			       struct convert_context *ctx,
 			       struct bio *bio_out, struct bio *bio_in,
@@ -1491,14 +1666,20 @@ static int crypt_ctr_cipher(struct dm_target *ti,
 		cc->iv_gen_ops = &crypt_iv_null_ops;
 	else if (strcmp(ivmode, "lmk") == 0) {
 		cc->iv_gen_ops = &crypt_iv_lmk_ops;
-		/* Version 2 and 3 is recognised according
+		/*
+		 * Version 2 and 3 is recognised according
 		 * to length of provided multi-key string.
 		 * If present (version 3), last key is used as IV seed.
+		 * All keys (including IV seed) are always the same size.
 		 */
 		if (cc->key_size % cc->key_parts) {
 			cc->key_parts++;
 			cc->key_extra_size = cc->key_size / cc->key_parts;
 		}
+	} else if (strcmp(ivmode, "tcw") == 0) {
+		cc->iv_gen_ops = &crypt_iv_tcw_ops;
+		cc->key_parts += 2; /* IV + whitening */
+		cc->key_extra_size = cc->iv_size + TCW_WHITENING_SIZE;
 	} else {
 		ret = -EINVAL;
 		ti->error = "Invalid IV mode";
@@ -1824,7 +2005,7 @@ static int crypt_iterate_devices(struct dm_target *ti,
 
 static struct target_type crypt_target = {
 	.name   = "crypt",
-	.version = {1, 12, 1},
+	.version = {1, 13, 0},
 	.module = THIS_MODULE,
 	.ctr    = crypt_ctr,
 	.dtr    = crypt_dtr,
-- 
cgit 


From 7833b08e18241a1c35c09ef38be840cbf6c58acf Mon Sep 17 00:00:00 2001
From: Mike Snitzer <snitzer@redhat.com>
Date: Thu, 24 Oct 2013 14:10:29 -0400
Subject: dm table: print error on preresume failure

If preresume fails it is worth logging an error given that a device is
left suspended due to the failure.

This change was motivated by local preresume error logging that was
added to the cache target ("preresume failed").  Elevating this
target-agnostic context for the where the target-specific error occurred
relative to the DM core's callouts makes sense.

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Joe Thornber <ejt@redhat.com>
---
 drivers/md/dm-table.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index 41d907b58f7e..465f08ca62b1 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -1562,8 +1562,11 @@ int dm_table_resume_targets(struct dm_table *t)
 			continue;
 
 		r = ti->type->preresume(ti);
-		if (r)
+		if (r) {
+			DMERR("%s: %s: preresume failed, error = %d",
+			      dm_device_name(t->md), ti->type->name, r);
 			return r;
+		}
 	}
 
 	for (i = 0; i < t->num_targets; i++) {
-- 
cgit 


From 2c140a246dc0bc085b98eddde978060fcec1080c Mon Sep 17 00:00:00 2001
From: Mikulas Patocka <mpatocka@redhat.com>
Date: Fri, 1 Nov 2013 18:27:41 -0400
Subject: dm: allow remove to be deferred

This patch allows the removal of an open device to be deferred until
it is closed.  (Previously such a removal attempt would fail.)

The deferred remove functionality is enabled by setting the flag
DM_DEFERRED_REMOVE in the ioctl structure on DM_DEV_REMOVE or
DM_REMOVE_ALL ioctl.

On return from DM_DEV_REMOVE, the flag DM_DEFERRED_REMOVE indicates if
the device was removed immediately or flagged to be removed on close -
if the flag is clear, the device was removed.

On return from DM_DEV_STATUS and other ioctls, the flag
DM_DEFERRED_REMOVE is set if the device is scheduled to be removed on
closure.

A device that is scheduled to be deleted can be revived using the
message "@cancel_deferred_remove". This message clears the
DMF_DEFERRED_REMOVE flag so that the device won't be deleted on close.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-ioctl.c         | 36 +++++++++++++++++++++++++++------
 drivers/md/dm.c               | 47 ++++++++++++++++++++++++++++++++++++++++---
 drivers/md/dm.h               | 13 +++++++++++-
 include/uapi/linux/dm-ioctl.h | 15 ++++++++++++--
 4 files changed, 99 insertions(+), 12 deletions(-)

diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index afe08146f73e..51521429fb59 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -57,7 +57,7 @@ struct vers_iter {
 static struct list_head _name_buckets[NUM_BUCKETS];
 static struct list_head _uuid_buckets[NUM_BUCKETS];
 
-static void dm_hash_remove_all(int keep_open_devices);
+static void dm_hash_remove_all(bool keep_open_devices, bool mark_deferred, bool only_deferred);
 
 /*
  * Guards access to both hash tables.
@@ -86,7 +86,7 @@ static int dm_hash_init(void)
 
 static void dm_hash_exit(void)
 {
-	dm_hash_remove_all(0);
+	dm_hash_remove_all(false, false, false);
 }
 
 /*-----------------------------------------------------------------
@@ -276,7 +276,7 @@ static struct dm_table *__hash_remove(struct hash_cell *hc)
 	return table;
 }
 
-static void dm_hash_remove_all(int keep_open_devices)
+static void dm_hash_remove_all(bool keep_open_devices, bool mark_deferred, bool only_deferred)
 {
 	int i, dev_skipped;
 	struct hash_cell *hc;
@@ -293,7 +293,8 @@ retry:
 			md = hc->md;
 			dm_get(md);
 
-			if (keep_open_devices && dm_lock_for_deletion(md)) {
+			if (keep_open_devices &&
+			    dm_lock_for_deletion(md, mark_deferred, only_deferred)) {
 				dm_put(md);
 				dev_skipped++;
 				continue;
@@ -450,6 +451,11 @@ static struct mapped_device *dm_hash_rename(struct dm_ioctl *param,
 	return md;
 }
 
+void dm_deferred_remove(void)
+{
+	dm_hash_remove_all(true, false, true);
+}
+
 /*-----------------------------------------------------------------
  * Implementation of the ioctl commands
  *---------------------------------------------------------------*/
@@ -461,7 +467,7 @@ typedef int (*ioctl_fn)(struct dm_ioctl *param, size_t param_size);
 
 static int remove_all(struct dm_ioctl *param, size_t param_size)
 {
-	dm_hash_remove_all(1);
+	dm_hash_remove_all(true, !!(param->flags & DM_DEFERRED_REMOVE), false);
 	param->data_size = 0;
 	return 0;
 }
@@ -683,6 +689,9 @@ static void __dev_status(struct mapped_device *md, struct dm_ioctl *param)
 	if (dm_suspended_md(md))
 		param->flags |= DM_SUSPEND_FLAG;
 
+	if (dm_test_deferred_remove_flag(md))
+		param->flags |= DM_DEFERRED_REMOVE;
+
 	param->dev = huge_encode_dev(disk_devt(disk));
 
 	/*
@@ -832,8 +841,13 @@ static int dev_remove(struct dm_ioctl *param, size_t param_size)
 	/*
 	 * Ensure the device is not open and nothing further can open it.
 	 */
-	r = dm_lock_for_deletion(md);
+	r = dm_lock_for_deletion(md, !!(param->flags & DM_DEFERRED_REMOVE), false);
 	if (r) {
+		if (r == -EBUSY && param->flags & DM_DEFERRED_REMOVE) {
+			up_write(&_hash_lock);
+			dm_put(md);
+			return 0;
+		}
 		DMDEBUG_LIMIT("unable to remove open device %s", hc->name);
 		up_write(&_hash_lock);
 		dm_put(md);
@@ -848,6 +862,8 @@ static int dev_remove(struct dm_ioctl *param, size_t param_size)
 		dm_table_destroy(t);
 	}
 
+	param->flags &= ~DM_DEFERRED_REMOVE;
+
 	if (!dm_kobject_uevent(md, KOBJ_REMOVE, param->event_nr))
 		param->flags |= DM_UEVENT_GENERATED_FLAG;
 
@@ -1469,6 +1485,14 @@ static int message_for_md(struct mapped_device *md, unsigned argc, char **argv,
 	if (**argv != '@')
 		return 2; /* no '@' prefix, deliver to target */
 
+	if (!strcasecmp(argv[0], "@cancel_deferred_remove")) {
+		if (argc != 1) {
+			DMERR("Invalid arguments for @cancel_deferred_remove");
+			return -EINVAL;
+		}
+		return dm_cancel_deferred_remove(md);
+	}
+
 	r = dm_stats_message(md, argc, argv, result, maxlen);
 	if (r < 2)
 		return r;
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index b3e26c7d1417..0704c523a76b 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -49,6 +49,11 @@ static unsigned int _major = 0;
 static DEFINE_IDR(_minor_idr);
 
 static DEFINE_SPINLOCK(_minor_lock);
+
+static void do_deferred_remove(struct work_struct *w);
+
+static DECLARE_WORK(deferred_remove_work, do_deferred_remove);
+
 /*
  * For bio-based dm.
  * One of these is allocated per bio.
@@ -116,6 +121,7 @@ EXPORT_SYMBOL_GPL(dm_get_rq_mapinfo);
 #define DMF_DELETING 4
 #define DMF_NOFLUSH_SUSPENDING 5
 #define DMF_MERGE_IS_OPTIONAL 6
+#define DMF_DEFERRED_REMOVE 7
 
 /*
  * A dummy definition to make RCU happy.
@@ -299,6 +305,8 @@ out_free_io_cache:
 
 static void local_exit(void)
 {
+	flush_scheduled_work();
+
 	kmem_cache_destroy(_rq_tio_cache);
 	kmem_cache_destroy(_io_cache);
 	unregister_blkdev(_major, _name);
@@ -404,7 +412,10 @@ static void dm_blk_close(struct gendisk *disk, fmode_t mode)
 
 	spin_lock(&_minor_lock);
 
-	atomic_dec(&md->open_count);
+	if (atomic_dec_and_test(&md->open_count) &&
+	    (test_bit(DMF_DEFERRED_REMOVE, &md->flags)))
+		schedule_work(&deferred_remove_work);
+
 	dm_put(md);
 
 	spin_unlock(&_minor_lock);
@@ -418,14 +429,18 @@ int dm_open_count(struct mapped_device *md)
 /*
  * Guarantees nothing is using the device before it's deleted.
  */
-int dm_lock_for_deletion(struct mapped_device *md)
+int dm_lock_for_deletion(struct mapped_device *md, bool mark_deferred, bool only_deferred)
 {
 	int r = 0;
 
 	spin_lock(&_minor_lock);
 
-	if (dm_open_count(md))
+	if (dm_open_count(md)) {
 		r = -EBUSY;
+		if (mark_deferred)
+			set_bit(DMF_DEFERRED_REMOVE, &md->flags);
+	} else if (only_deferred && !test_bit(DMF_DEFERRED_REMOVE, &md->flags))
+		r = -EEXIST;
 	else
 		set_bit(DMF_DELETING, &md->flags);
 
@@ -434,6 +449,27 @@ int dm_lock_for_deletion(struct mapped_device *md)
 	return r;
 }
 
+int dm_cancel_deferred_remove(struct mapped_device *md)
+{
+	int r = 0;
+
+	spin_lock(&_minor_lock);
+
+	if (test_bit(DMF_DELETING, &md->flags))
+		r = -EBUSY;
+	else
+		clear_bit(DMF_DEFERRED_REMOVE, &md->flags);
+
+	spin_unlock(&_minor_lock);
+
+	return r;
+}
+
+static void do_deferred_remove(struct work_struct *w)
+{
+	dm_deferred_remove();
+}
+
 sector_t dm_get_size(struct mapped_device *md)
 {
 	return get_capacity(md->disk);
@@ -2894,6 +2930,11 @@ int dm_suspended_md(struct mapped_device *md)
 	return test_bit(DMF_SUSPENDED, &md->flags);
 }
 
+int dm_test_deferred_remove_flag(struct mapped_device *md)
+{
+	return test_bit(DMF_DEFERRED_REMOVE, &md->flags);
+}
+
 int dm_suspended(struct dm_target *ti)
 {
 	return dm_suspended_md(dm_table_get_md(ti->table));
diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index 1d1ad7b7e527..c57ba550f69e 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -128,6 +128,16 @@ int dm_deleting_md(struct mapped_device *md);
  */
 int dm_suspended_md(struct mapped_device *md);
 
+/*
+ * Test if the device is scheduled for deferred remove.
+ */
+int dm_test_deferred_remove_flag(struct mapped_device *md);
+
+/*
+ * Try to remove devices marked for deferred removal.
+ */
+void dm_deferred_remove(void);
+
 /*
  * The device-mapper can be driven through one of two interfaces;
  * ioctl or filesystem, depending which patch you have applied.
@@ -158,7 +168,8 @@ void dm_stripe_exit(void);
 void dm_destroy(struct mapped_device *md);
 void dm_destroy_immediate(struct mapped_device *md);
 int dm_open_count(struct mapped_device *md);
-int dm_lock_for_deletion(struct mapped_device *md);
+int dm_lock_for_deletion(struct mapped_device *md, bool mark_deferred, bool only_deferred);
+int dm_cancel_deferred_remove(struct mapped_device *md);
 int dm_request_based(struct mapped_device *md);
 sector_t dm_get_size(struct mapped_device *md);
 struct dm_stats *dm_get_stats(struct mapped_device *md);
diff --git a/include/uapi/linux/dm-ioctl.h b/include/uapi/linux/dm-ioctl.h
index f1e12bd40b3b..c8a4302093a3 100644
--- a/include/uapi/linux/dm-ioctl.h
+++ b/include/uapi/linux/dm-ioctl.h
@@ -267,9 +267,9 @@ enum {
 #define DM_DEV_SET_GEOMETRY	_IOWR(DM_IOCTL, DM_DEV_SET_GEOMETRY_CMD, struct dm_ioctl)
 
 #define DM_VERSION_MAJOR	4
-#define DM_VERSION_MINOR	26
+#define DM_VERSION_MINOR	27
 #define DM_VERSION_PATCHLEVEL	0
-#define DM_VERSION_EXTRA	"-ioctl (2013-08-15)"
+#define DM_VERSION_EXTRA	"-ioctl (2013-10-30)"
 
 /* Status bits */
 #define DM_READONLY_FLAG	(1 << 0) /* In/Out */
@@ -341,4 +341,15 @@ enum {
  */
 #define DM_DATA_OUT_FLAG		(1 << 16) /* Out */
 
+/*
+ * If set with DM_DEV_REMOVE or DM_REMOVE_ALL this indicates that if
+ * the device cannot be removed immediately because it is still in use
+ * it should instead be scheduled for removal when it gets closed.
+ *
+ * On return from DM_DEV_REMOVE, DM_DEV_STATUS or other ioctls, this
+ * flag indicates that the device is scheduled to be removed when it
+ * gets closed.
+ */
+#define DM_DEFERRED_REMOVE		(1 << 17) /* In/Out */
+
 #endif				/* _LINUX_DM_IOCTL_H */
-- 
cgit 


From 5442851edb28d7b8dfd98023b2a10c65b93f07a1 Mon Sep 17 00:00:00 2001
From: Mikulas Patocka <mpatocka@redhat.com>
Date: Fri, 8 Nov 2013 10:47:12 -0500
Subject: dm: fix Kconfig menu indentation

The option DM_LOG_USERSPACE is sub-option of DM_MIRROR, so place it
right after DM_MIRROR.  Doing so fixes various other Device mapper
targets/features to be properly nested under "Device mapper support".

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/Kconfig | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/md/Kconfig b/drivers/md/Kconfig
index 30b426ed744b..f2ccbc3b9fe4 100644
--- a/drivers/md/Kconfig
+++ b/drivers/md/Kconfig
@@ -297,6 +297,17 @@ config DM_MIRROR
          Allow volume managers to mirror logical volumes, also
          needed for live data migration tools such as 'pvmove'.
 
+config DM_LOG_USERSPACE
+	tristate "Mirror userspace logging"
+	depends on DM_MIRROR && NET
+	select CONNECTOR
+	---help---
+	  The userspace logging module provides a mechanism for
+	  relaying the dm-dirty-log API to userspace.  Log designs
+	  which are more suited to userspace implementation (e.g.
+	  shared storage logs) or experimental logs can be implemented
+	  by leveraging this framework.
+
 config DM_RAID
        tristate "RAID 1/4/5/6/10 target"
        depends on BLK_DEV_DM
@@ -323,17 +334,6 @@ config DM_RAID
 	 RAID-5, RAID-6 distributes the syndromes across the drives
 	 in one of the available parity distribution methods.
 
-config DM_LOG_USERSPACE
-	tristate "Mirror userspace logging"
-	depends on DM_MIRROR && NET
-	select CONNECTOR
-	---help---
-	  The userspace logging module provides a mechanism for
-	  relaying the dm-dirty-log API to userspace.  Log designs
-	  which are more suited to userspace implementation (e.g.
-	  shared storage logs) or experimental logs can be implemented
-	  by leveraging this framework.
-
 config DM_ZERO
 	tristate "Zero target"
 	depends on BLK_DEV_DM
-- 
cgit 


From 41d35d25e9d4e1b5e944b70f1bec272bcff5f489 Mon Sep 17 00:00:00 2001
From: Mike Snitzer <snitzer@redhat.com>
Date: Mon, 4 Nov 2013 19:42:38 -0500
Subject: MAINTAINERS: add reference to device-mapper's linux-dm.git tree

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 MAINTAINERS | 1 +
 1 file changed, 1 insertion(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 8a0cbf3cf2c8..d6bc019b796b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2637,6 +2637,7 @@ M:	dm-devel@redhat.com
 L:	dm-devel@redhat.com
 W:	http://sources.redhat.com/dm
 Q:	http://patchwork.kernel.org/project/dm-devel/list/
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm.git
 T:	quilt http://people.redhat.com/agk/patches/linux/editing/
 S:	Maintained
 F:	Documentation/device-mapper/
-- 
cgit 


From 40c57f475f416ab241124e1e6a593b2f982eaae3 Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Fri, 9 Aug 2013 14:19:32 +0100
Subject: dm space map disk: optimise sm_disk_dec_block

Don't waste time spotting blocks that have been allocated and then freed
in the same transaction.

The extra lookup is expensive, and I don't think it really gives us much.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/persistent-data/dm-space-map-disk.c | 18 +-----------------
 1 file changed, 1 insertion(+), 17 deletions(-)

diff --git a/drivers/md/persistent-data/dm-space-map-disk.c b/drivers/md/persistent-data/dm-space-map-disk.c
index e735a6d5a793..cfbf9617e465 100644
--- a/drivers/md/persistent-data/dm-space-map-disk.c
+++ b/drivers/md/persistent-data/dm-space-map-disk.c
@@ -140,26 +140,10 @@ static int sm_disk_inc_block(struct dm_space_map *sm, dm_block_t b)
 
 static int sm_disk_dec_block(struct dm_space_map *sm, dm_block_t b)
 {
-	int r;
-	uint32_t old_count;
 	enum allocation_event ev;
 	struct sm_disk *smd = container_of(sm, struct sm_disk, sm);
 
-	r = sm_ll_dec(&smd->ll, b, &ev);
-	if (!r && (ev == SM_FREE)) {
-		/*
-		 * It's only free if it's also free in the last
-		 * transaction.
-		 */
-		r = sm_ll_lookup(&smd->old_ll, b, &old_count);
-		if (r)
-			return r;
-
-		if (!old_count)
-			smd->nr_allocated_this_transaction--;
-	}
-
-	return r;
+	return sm_ll_dec(&smd->ll, b, &ev);
 }
 
 static int sm_disk_new_block(struct dm_space_map *sm, dm_block_t *b)
-- 
cgit 


From ffcbcb6720ab6a4bb6e0a51b3711e8c60872d281 Mon Sep 17 00:00:00 2001
From: Heinz Mauelshagen <heinzm@redhat.com>
Date: Mon, 14 Oct 2013 17:24:43 +0200
Subject: dm cache: optimize commit_if_needed

Check commit_requested flag _before_ calling
dm_cache_changed_this_transaction() superfluously.

Also, be sure to set last_commit_jiffies _after_ dm_cache_commit()
completes.

Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-cache-target.c | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 05a10c02043f..4b564069e08f 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -1234,15 +1234,17 @@ static int need_commit_due_to_time(struct cache *cache)
 
 static int commit_if_needed(struct cache *cache)
 {
-	if (dm_cache_changed_this_transaction(cache->cmd) &&
-	    (cache->commit_requested || need_commit_due_to_time(cache))) {
+	int r = 0;
+
+	if ((cache->commit_requested || need_commit_due_to_time(cache)) &&
+	    dm_cache_changed_this_transaction(cache->cmd)) {
 		atomic_inc(&cache->stats.commit_count);
-		cache->last_commit_jiffies = jiffies;
 		cache->commit_requested = false;
-		return dm_cache_commit(cache->cmd, false);
+		r = dm_cache_commit(cache->cmd, false);
+		cache->last_commit_jiffies = jiffies;
 	}
 
-	return 0;
+	return r;
 }
 
 static void process_deferred_bios(struct cache *cache)
-- 
cgit 


From 01911c19bea63b1a958b9d9024504c2e9079f155 Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Thu, 24 Oct 2013 14:10:28 -0400
Subject: dm cache policy mq: implement writeback_work() and
 mq_{set,clear}_dirty()

There are now two multiqueues for in cache blocks.  A clean one and a
dirty one.

writeback_work comes from the dirty one.  Demotions come from the clean
one.

There are two benefits:
- Performance improvement, since demoting a clean block is a noop.
- The cache cleans itself when io load is light.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 Documentation/device-mapper/cache-policies.txt |   6 +-
 drivers/md/dm-cache-policy-mq.c                | 147 +++++++++++++++++++++----
 2 files changed, 132 insertions(+), 21 deletions(-)

diff --git a/Documentation/device-mapper/cache-policies.txt b/Documentation/device-mapper/cache-policies.txt
index d7c440b444cc..df52a849957f 100644
--- a/Documentation/device-mapper/cache-policies.txt
+++ b/Documentation/device-mapper/cache-policies.txt
@@ -30,8 +30,10 @@ multiqueue
 
 This policy is the default.
 
-The multiqueue policy has two sets of 16 queues: one set for entries
-waiting for the cache and another one for those in the cache.
+The multiqueue policy has three sets of 16 queues: one set for entries
+waiting for the cache and another two for those in the cache (a set for
+clean entries and a set for dirty entries).
+
 Cache entries in the queues are aged based on logical time. Entry into
 the cache is based on variable thresholds and queue selection is based
 on hit count on entry. The policy aims to take different cache miss
diff --git a/drivers/md/dm-cache-policy-mq.c b/drivers/md/dm-cache-policy-mq.c
index a9a25de5b011..6710e038c730 100644
--- a/drivers/md/dm-cache-policy-mq.c
+++ b/drivers/md/dm-cache-policy-mq.c
@@ -224,6 +224,7 @@ struct entry {
 	 * FIXME: pack these better
 	 */
 	bool in_cache:1;
+	bool dirty:1;
 	unsigned hit_count;
 	unsigned generation;
 	unsigned tick;
@@ -238,13 +239,15 @@ struct mq_policy {
 	struct io_tracker tracker;
 
 	/*
-	 * We maintain two queues of entries.  The cache proper contains
-	 * the currently active mappings.  Whereas the pre_cache tracks
-	 * blocks that are being hit frequently and potential candidates
-	 * for promotion to the cache.
+	 * We maintain three queues of entries.  The cache proper,
+	 * consisting of a clean and dirty queue, contains the currently
+	 * active mappings.  Whereas the pre_cache tracks blocks that
+	 * are being hit frequently and potential candidates for promotion
+	 * to the cache.
 	 */
 	struct queue pre_cache;
-	struct queue cache;
+	struct queue cache_clean;
+	struct queue cache_dirty;
 
 	/*
 	 * Keeps track of time, incremented by the core.  We use this to
@@ -324,7 +327,8 @@ static void free_entries(struct mq_policy *mq)
 	struct entry *e, *tmp;
 
 	concat_queue(&mq->free, &mq->pre_cache);
-	concat_queue(&mq->free, &mq->cache);
+	concat_queue(&mq->free, &mq->cache_clean);
+	concat_queue(&mq->free, &mq->cache_dirty);
 
 	list_for_each_entry_safe(e, tmp, &mq->free, list)
 		kmem_cache_free(mq_entry_cache, e);
@@ -508,7 +512,8 @@ static void push(struct mq_policy *mq, struct entry *e)
 
 	if (e->in_cache) {
 		alloc_cblock(mq, e->cblock);
-		queue_push(&mq->cache, queue_level(e), &e->list);
+		queue_push(e->dirty ? &mq->cache_dirty : &mq->cache_clean,
+			   queue_level(e), &e->list);
 	} else
 		queue_push(&mq->pre_cache, queue_level(e), &e->list);
 }
@@ -558,7 +563,8 @@ static bool updated_this_tick(struct mq_policy *mq, struct entry *e)
  * of the entries.
  *
  * At the moment the threshold is taken by averaging the hit counts of some
- * of the entries in the cache (the first 20 entries of the first level).
+ * of the entries in the cache (the first 20 entries across all levels in
+ * ascending order, giving preference to the clean entries at each level).
  *
  * We can be much cleverer than this though.  For example, each promotion
  * could bump up the threshold helping to prevent churn.  Much more to do
@@ -580,7 +586,16 @@ static void check_generation(struct mq_policy *mq)
 		mq->generation++;
 
 		for (level = 0; level < NR_QUEUE_LEVELS && count < MAX_TO_AVERAGE; level++) {
-			head = mq->cache.qs + level;
+			head = mq->cache_clean.qs + level;
+			list_for_each_entry(e, head, list) {
+				nr++;
+				total += e->hit_count;
+
+				if (++count >= MAX_TO_AVERAGE)
+					break;
+			}
+
+			head = mq->cache_dirty.qs + level;
 			list_for_each_entry(e, head, list) {
 				nr++;
 				total += e->hit_count;
@@ -633,19 +648,28 @@ static void requeue_and_update_tick(struct mq_policy *mq, struct entry *e)
  * - set the hit count to a hard coded value other than 1, eg, is it better
  *   if it goes in at level 2?
  */
-static dm_cblock_t demote_cblock(struct mq_policy *mq, dm_oblock_t *oblock)
+static int demote_cblock(struct mq_policy *mq, dm_oblock_t *oblock, dm_cblock_t *cblock)
 {
-	dm_cblock_t result;
-	struct entry *demoted = pop(mq, &mq->cache);
+	struct entry *demoted = pop(mq, &mq->cache_clean);
 
-	BUG_ON(!demoted);
-	result = demoted->cblock;
+	if (!demoted)
+		/*
+		 * We could get a block from mq->cache_dirty, but that
+		 * would add extra latency to the triggering bio as it
+		 * waits for the writeback.  Better to not promote this
+		 * time and hope there's a clean block next time this block
+		 * is hit.
+		 */
+		return -ENOSPC;
+
+	*cblock = demoted->cblock;
 	*oblock = demoted->oblock;
 	demoted->in_cache = false;
+	demoted->dirty = false;
 	demoted->hit_count = 1;
 	push(mq, demoted);
 
-	return result;
+	return 0;
 }
 
 /*
@@ -705,11 +729,16 @@ static int cache_entry_found(struct mq_policy *mq,
 static int pre_cache_to_cache(struct mq_policy *mq, struct entry *e,
 			      struct policy_result *result)
 {
+	int r;
 	dm_cblock_t cblock;
 
 	if (find_free_cblock(mq, &cblock) == -ENOSPC) {
 		result->op = POLICY_REPLACE;
-		cblock = demote_cblock(mq, &result->old_oblock);
+		r = demote_cblock(mq, &result->old_oblock, &cblock);
+		if (r) {
+			result->op = POLICY_MISS;
+			return 0;
+		}
 	} else
 		result->op = POLICY_NEW;
 
@@ -717,6 +746,7 @@ static int pre_cache_to_cache(struct mq_policy *mq, struct entry *e,
 
 	del(mq, e);
 	e->in_cache = true;
+	e->dirty = false;
 	push(mq, e);
 
 	return 0;
@@ -760,6 +790,7 @@ static void insert_in_pre_cache(struct mq_policy *mq,
 	}
 
 	e->in_cache = false;
+	e->dirty = false;
 	e->oblock = oblock;
 	e->hit_count = 1;
 	e->generation = mq->generation;
@@ -787,6 +818,7 @@ static void insert_in_cache(struct mq_policy *mq, dm_oblock_t oblock,
 	e->oblock = oblock;
 	e->cblock = cblock;
 	e->in_cache = true;
+	e->dirty = false;
 	e->hit_count = 1;
 	e->generation = mq->generation;
 	push(mq, e);
@@ -917,6 +949,40 @@ static int mq_lookup(struct dm_cache_policy *p, dm_oblock_t oblock, dm_cblock_t
 	return r;
 }
 
+/*
+ * FIXME: __mq_set_clear_dirty can block due to mutex.
+ * Ideally a policy should not block in functions called
+ * from the map() function.  Explore using RCU.
+ */
+static void __mq_set_clear_dirty(struct dm_cache_policy *p, dm_oblock_t oblock, bool set)
+{
+	struct mq_policy *mq = to_mq_policy(p);
+	struct entry *e;
+
+	mutex_lock(&mq->lock);
+	e = hash_lookup(mq, oblock);
+	if (!e)
+		DMWARN("__mq_set_clear_dirty called for a block that isn't in the cache");
+	else {
+		BUG_ON(!e->in_cache);
+
+		del(mq, e);
+		e->dirty = set;
+		push(mq, e);
+	}
+	mutex_unlock(&mq->lock);
+}
+
+static void mq_set_dirty(struct dm_cache_policy *p, dm_oblock_t oblock)
+{
+	__mq_set_clear_dirty(p, oblock, true);
+}
+
+static void mq_clear_dirty(struct dm_cache_policy *p, dm_oblock_t oblock)
+{
+	__mq_set_clear_dirty(p, oblock, false);
+}
+
 static int mq_load_mapping(struct dm_cache_policy *p,
 			   dm_oblock_t oblock, dm_cblock_t cblock,
 			   uint32_t hint, bool hint_valid)
@@ -931,6 +997,7 @@ static int mq_load_mapping(struct dm_cache_policy *p,
 	e->cblock = cblock;
 	e->oblock = oblock;
 	e->in_cache = true;
+	e->dirty = false;	/* this gets corrected in a minute */
 	e->hit_count = hint_valid ? hint : 1;
 	e->generation = mq->generation;
 	push(mq, e);
@@ -949,7 +1016,14 @@ static int mq_walk_mappings(struct dm_cache_policy *p, policy_walk_fn fn,
 	mutex_lock(&mq->lock);
 
 	for (level = 0; level < NR_QUEUE_LEVELS; level++)
-		list_for_each_entry(e, &mq->cache.qs[level], list) {
+		list_for_each_entry(e, &mq->cache_clean.qs[level], list) {
+			r = fn(context, e->cblock, e->oblock, e->hit_count);
+			if (r)
+				goto out;
+		}
+
+	for (level = 0; level < NR_QUEUE_LEVELS; level++)
+		list_for_each_entry(e, &mq->cache_dirty.qs[level], list) {
 			r = fn(context, e->cblock, e->oblock, e->hit_count);
 			if (r)
 				goto out;
@@ -974,11 +1048,41 @@ static void mq_remove_mapping(struct dm_cache_policy *p, dm_oblock_t oblock)
 
 	del(mq, e);
 	e->in_cache = false;
+	e->dirty = false;
 	push(mq, e);
 
 	mutex_unlock(&mq->lock);
 }
 
+static int __mq_writeback_work(struct mq_policy *mq, dm_oblock_t *oblock,
+			      dm_cblock_t *cblock)
+{
+	struct entry *e = pop(mq, &mq->cache_dirty);
+
+	if (!e)
+		return -ENODATA;
+
+	*oblock = e->oblock;
+	*cblock = e->cblock;
+	e->dirty = false;
+	push(mq, e);
+
+	return 0;
+}
+
+static int mq_writeback_work(struct dm_cache_policy *p, dm_oblock_t *oblock,
+			     dm_cblock_t *cblock)
+{
+	int r;
+	struct mq_policy *mq = to_mq_policy(p);
+
+	mutex_lock(&mq->lock);
+	r = __mq_writeback_work(mq, oblock, cblock);
+	mutex_unlock(&mq->lock);
+
+	return r;
+}
+
 static void force_mapping(struct mq_policy *mq,
 			  dm_oblock_t current_oblock, dm_oblock_t new_oblock)
 {
@@ -988,6 +1092,7 @@ static void force_mapping(struct mq_policy *mq,
 
 	del(mq, e);
 	e->oblock = new_oblock;
+	e->dirty = true;
 	push(mq, e);
 }
 
@@ -1063,10 +1168,12 @@ static void init_policy_functions(struct mq_policy *mq)
 	mq->policy.destroy = mq_destroy;
 	mq->policy.map = mq_map;
 	mq->policy.lookup = mq_lookup;
+	mq->policy.set_dirty = mq_set_dirty;
+	mq->policy.clear_dirty = mq_clear_dirty;
 	mq->policy.load_mapping = mq_load_mapping;
 	mq->policy.walk_mappings = mq_walk_mappings;
 	mq->policy.remove_mapping = mq_remove_mapping;
-	mq->policy.writeback_work = NULL;
+	mq->policy.writeback_work = mq_writeback_work;
 	mq->policy.force_mapping = mq_force_mapping;
 	mq->policy.residency = mq_residency;
 	mq->policy.tick = mq_tick;
@@ -1099,7 +1206,9 @@ static struct dm_cache_policy *mq_create(dm_cblock_t cache_size,
 	mq->find_free_last_word = 0;
 
 	queue_init(&mq->pre_cache);
-	queue_init(&mq->cache);
+	queue_init(&mq->cache_clean);
+	queue_init(&mq->cache_dirty);
+
 	mq->generation_period = max((unsigned) from_cblock(cache_size), 1024U);
 
 	mq->nr_entries = 2 * from_cblock(cache_size);
-- 
cgit 


From c86c30706caa02ffe303e6b87d53ef6a077d4cca Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Thu, 24 Oct 2013 14:10:28 -0400
Subject: dm cache: be much more aggressive about promoting writes to discarded
 blocks

Previously these promotions only got priority if there were unused cache
blocks.  Now we give them priority if there are any clean blocks in the
cache.

The fio_soak_test in the device-mapper-test-suite now gives uniform
performance across subvolumes (~16 seconds).

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-cache-policy-mq.c | 84 ++++++++++++++++++++++++++++++-----------
 1 file changed, 63 insertions(+), 21 deletions(-)

diff --git a/drivers/md/dm-cache-policy-mq.c b/drivers/md/dm-cache-policy-mq.c
index 6710e038c730..444f0bf10b21 100644
--- a/drivers/md/dm-cache-policy-mq.c
+++ b/drivers/md/dm-cache-policy-mq.c
@@ -150,6 +150,21 @@ static void queue_init(struct queue *q)
 		INIT_LIST_HEAD(q->qs + i);
 }
 
+/*
+ * Checks to see if the queue is empty.
+ * FIXME: reduce cpu usage.
+ */
+static bool queue_empty(struct queue *q)
+{
+	unsigned i;
+
+	for (i = 0; i < NR_QUEUE_LEVELS; i++)
+		if (!list_empty(q->qs + i))
+			return false;
+
+	return true;
+}
+
 /*
  * Insert an entry to the back of the given level.
  */
@@ -442,6 +457,11 @@ static bool any_free_cblocks(struct mq_policy *mq)
 	return mq->nr_cblocks_allocated < from_cblock(mq->cache_size);
 }
 
+static bool any_clean_cblocks(struct mq_policy *mq)
+{
+	return !queue_empty(&mq->cache_clean);
+}
+
 /*
  * Fills result out with a cache block that isn't in use, or return
  * -ENOSPC.  This does _not_ mark the cblock as allocated, the caller is
@@ -688,17 +708,18 @@ static int demote_cblock(struct mq_policy *mq, dm_oblock_t *oblock, dm_cblock_t
 static unsigned adjusted_promote_threshold(struct mq_policy *mq,
 					   bool discarded_oblock, int data_dir)
 {
-	if (discarded_oblock && any_free_cblocks(mq) && data_dir == WRITE)
+	if (data_dir == READ)
+		return mq->promote_threshold + READ_PROMOTE_THRESHOLD;
+
+	if (discarded_oblock && (any_free_cblocks(mq) || any_clean_cblocks(mq))) {
 		/*
 		 * We don't need to do any copying at all, so give this a
-		 * very low threshold.  In practice this only triggers
-		 * during initial population after a format.
+		 * very low threshold.
 		 */
 		return DISCARDED_PROMOTE_THRESHOLD;
+	}
 
-	return data_dir == READ ?
-		(mq->promote_threshold + READ_PROMOTE_THRESHOLD) :
-		(mq->promote_threshold + WRITE_PROMOTE_THRESHOLD);
+	return mq->promote_threshold + WRITE_PROMOTE_THRESHOLD;
 }
 
 static bool should_promote(struct mq_policy *mq, struct entry *e,
@@ -772,6 +793,17 @@ static int pre_cache_entry_found(struct mq_policy *mq, struct entry *e,
 	return r;
 }
 
+static void insert_entry_in_pre_cache(struct mq_policy *mq,
+				      struct entry *e, dm_oblock_t oblock)
+{
+	e->in_cache = false;
+	e->dirty = false;
+	e->oblock = oblock;
+	e->hit_count = 1;
+	e->generation = mq->generation;
+	push(mq, e);
+}
+
 static void insert_in_pre_cache(struct mq_policy *mq,
 				dm_oblock_t oblock)
 {
@@ -789,30 +821,41 @@ static void insert_in_pre_cache(struct mq_policy *mq,
 		return;
 	}
 
-	e->in_cache = false;
-	e->dirty = false;
-	e->oblock = oblock;
-	e->hit_count = 1;
-	e->generation = mq->generation;
-	push(mq, e);
+	insert_entry_in_pre_cache(mq, e, oblock);
 }
 
 static void insert_in_cache(struct mq_policy *mq, dm_oblock_t oblock,
 			    struct policy_result *result)
 {
+	int r;
 	struct entry *e;
 	dm_cblock_t cblock;
 
 	if (find_free_cblock(mq, &cblock) == -ENOSPC) {
-		result->op = POLICY_MISS;
-		insert_in_pre_cache(mq, oblock);
-		return;
-	}
+		r = demote_cblock(mq, &result->old_oblock, &cblock);
+		if (unlikely(r)) {
+			result->op = POLICY_MISS;
+			insert_in_pre_cache(mq, oblock);
+			return;
+		}
 
-	e = alloc_entry(mq);
-	if (unlikely(!e)) {
-		result->op = POLICY_MISS;
-		return;
+		/*
+		 * This will always succeed, since we've just demoted.
+		 */
+		e = pop(mq, &mq->pre_cache);
+		result->op = POLICY_REPLACE;
+
+	} else {
+		e = alloc_entry(mq);
+		if (unlikely(!e))
+			e = pop(mq, &mq->pre_cache);
+
+		if (unlikely(!e)) {
+			result->op = POLICY_MISS;
+			return;
+		}
+
+		result->op = POLICY_NEW;
 	}
 
 	e->oblock = oblock;
@@ -823,7 +866,6 @@ static void insert_in_cache(struct mq_policy *mq, dm_oblock_t oblock,
 	e->generation = mq->generation;
 	push(mq, e);
 
-	result->op = POLICY_NEW;
 	result->cblock = e->cblock;
 }
 
-- 
cgit 


From c9d28d5d09a0fd5f02f1321c8e18ff7d9f92270b Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Thu, 31 Oct 2013 13:55:48 -0400
Subject: dm cache: promotion optimisation for writes

If a write block triggers promotion and covers a whole block we can
avoid a copy.

Introduce dm_{hook,unhook}_bio to simplify saving and restoring bio
fields (bi_private is now used by overwrite).  Switch writethrough
support over to using these helpers too.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-cache-target.c | 93 +++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 87 insertions(+), 6 deletions(-)

diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 4b564069e08f..655994fdf308 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -61,6 +61,34 @@ static void free_bitset(unsigned long *bits)
 
 /*----------------------------------------------------------------*/
 
+/*
+ * There are a couple of places where we let a bio run, but want to do some
+ * work before calling its endio function.  We do this by temporarily
+ * changing the endio fn.
+ */
+struct dm_hook_info {
+	bio_end_io_t *bi_end_io;
+	void *bi_private;
+};
+
+static void dm_hook_bio(struct dm_hook_info *h, struct bio *bio,
+			bio_end_io_t *bi_end_io, void *bi_private)
+{
+	h->bi_end_io = bio->bi_end_io;
+	h->bi_private = bio->bi_private;
+
+	bio->bi_end_io = bi_end_io;
+	bio->bi_private = bi_private;
+}
+
+static void dm_unhook_bio(struct dm_hook_info *h, struct bio *bio)
+{
+	bio->bi_end_io = h->bi_end_io;
+	bio->bi_private = h->bi_private;
+}
+
+/*----------------------------------------------------------------*/
+
 #define PRISON_CELLS 1024
 #define MIGRATION_POOL_SIZE 128
 #define COMMIT_PERIOD HZ
@@ -214,7 +242,7 @@ struct per_bio_data {
 	 */
 	struct cache *cache;
 	dm_cblock_t cblock;
-	bio_end_io_t *saved_bi_end_io;
+	struct dm_hook_info hook_info;
 	struct dm_bio_details bio_details;
 };
 
@@ -231,6 +259,7 @@ struct dm_cache_migration {
 	bool writeback:1;
 	bool demote:1;
 	bool promote:1;
+	bool requeue_holder:1;
 
 	struct dm_bio_prison_cell *old_ocell;
 	struct dm_bio_prison_cell *new_ocell;
@@ -666,7 +695,8 @@ static void defer_writethrough_bio(struct cache *cache, struct bio *bio)
 static void writethrough_endio(struct bio *bio, int err)
 {
 	struct per_bio_data *pb = get_per_bio_data(bio, PB_DATA_SIZE_WT);
-	bio->bi_end_io = pb->saved_bi_end_io;
+
+	dm_unhook_bio(&pb->hook_info, bio);
 
 	if (err) {
 		bio_endio(bio, err);
@@ -697,9 +727,8 @@ static void remap_to_origin_then_cache(struct cache *cache, struct bio *bio,
 
 	pb->cache = cache;
 	pb->cblock = cblock;
-	pb->saved_bi_end_io = bio->bi_end_io;
+	dm_hook_bio(&pb->hook_info, bio, writethrough_endio, NULL);
 	dm_bio_record(&pb->bio_details, bio);
-	bio->bi_end_io = writethrough_endio;
 
 	remap_to_origin_clear_discard(pb->cache, bio, oblock);
 }
@@ -841,7 +870,12 @@ static void migration_success_post_commit(struct dm_cache_migration *mg)
 			cleanup_migration(mg);
 
 	} else {
-		cell_defer(cache, mg->new_ocell, true);
+		if (mg->requeue_holder)
+			cell_defer(cache, mg->new_ocell, true);
+		else {
+			bio_endio(mg->new_ocell->holder, 0);
+			cell_defer(cache, mg->new_ocell, false);
+		}
 		clear_dirty(cache, mg->new_oblock, mg->cblock);
 		cleanup_migration(mg);
 	}
@@ -892,6 +926,42 @@ static void issue_copy_real(struct dm_cache_migration *mg)
 	}
 }
 
+static void overwrite_endio(struct bio *bio, int err)
+{
+	struct dm_cache_migration *mg = bio->bi_private;
+	struct cache *cache = mg->cache;
+	size_t pb_data_size = get_per_bio_data_size(cache);
+	struct per_bio_data *pb = get_per_bio_data(bio, pb_data_size);
+	unsigned long flags;
+
+	if (err)
+		mg->err = true;
+
+	spin_lock_irqsave(&cache->lock, flags);
+	list_add_tail(&mg->list, &cache->completed_migrations);
+	dm_unhook_bio(&pb->hook_info, bio);
+	mg->requeue_holder = false;
+	spin_unlock_irqrestore(&cache->lock, flags);
+
+	wake_worker(cache);
+}
+
+static void issue_overwrite(struct dm_cache_migration *mg, struct bio *bio)
+{
+	size_t pb_data_size = get_per_bio_data_size(mg->cache);
+	struct per_bio_data *pb = get_per_bio_data(bio, pb_data_size);
+
+	dm_hook_bio(&pb->hook_info, bio, overwrite_endio, mg);
+	remap_to_cache_dirty(mg->cache, bio, mg->new_oblock, mg->cblock);
+	generic_make_request(bio);
+}
+
+static bool bio_writes_complete_block(struct cache *cache, struct bio *bio)
+{
+	return (bio_data_dir(bio) == WRITE) &&
+		(bio->bi_size == (cache->sectors_per_block << SECTOR_SHIFT));
+}
+
 static void avoid_copy(struct dm_cache_migration *mg)
 {
 	atomic_inc(&mg->cache->stats.copies_avoided);
@@ -906,9 +976,17 @@ static void issue_copy(struct dm_cache_migration *mg)
 	if (mg->writeback || mg->demote)
 		avoid = !is_dirty(cache, mg->cblock) ||
 			is_discarded_oblock(cache, mg->old_oblock);
-	else
+	else {
+		struct bio *bio = mg->new_ocell->holder;
+
 		avoid = is_discarded_oblock(cache, mg->new_oblock);
 
+		if (!avoid && bio_writes_complete_block(cache, bio)) {
+			issue_overwrite(mg, bio);
+			return;
+		}
+	}
+
 	avoid ? avoid_copy(mg) : issue_copy_real(mg);
 }
 
@@ -998,6 +1076,7 @@ static void promote(struct cache *cache, struct prealloc *structs,
 	mg->writeback = false;
 	mg->demote = false;
 	mg->promote = true;
+	mg->requeue_holder = true;
 	mg->cache = cache;
 	mg->new_oblock = oblock;
 	mg->cblock = cblock;
@@ -1019,6 +1098,7 @@ static void writeback(struct cache *cache, struct prealloc *structs,
 	mg->writeback = true;
 	mg->demote = false;
 	mg->promote = false;
+	mg->requeue_holder = true;
 	mg->cache = cache;
 	mg->old_oblock = oblock;
 	mg->cblock = cblock;
@@ -1042,6 +1122,7 @@ static void demote_then_promote(struct cache *cache, struct prealloc *structs,
 	mg->writeback = false;
 	mg->demote = true;
 	mg->promote = true;
+	mg->requeue_holder = true;
 	mg->cache = cache;
 	mg->old_oblock = old_oblock;
 	mg->new_oblock = new_oblock;
-- 
cgit 


From bdd3536618443809d18868563eeafa63b9d29603 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sat, 9 Nov 2013 22:19:48 -0500
Subject: ecryptfs: ->f_op is never NULL

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/ecryptfs/file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index 6b1cd2b0c751..2229a74aeeed 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -318,7 +318,7 @@ ecryptfs_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 
 	if (ecryptfs_file_to_private(file))
 		lower_file = ecryptfs_file_to_lower(file);
-	if (lower_file->f_op && lower_file->f_op->unlocked_ioctl)
+	if (lower_file->f_op->unlocked_ioctl)
 		rc = lower_file->f_op->unlocked_ioctl(lower_file, cmd, arg);
 	return rc;
 }
-- 
cgit 


From 29e59c14ae5c21d25db1580d9651b5855d656a30 Mon Sep 17 00:00:00 2001
From: Changman Lee <cm224.lee@samsung.com>
Date: Mon, 11 Nov 2013 09:24:37 +0900
Subject: f2fs: issue more large discard command

o Changes from v1
  Use find_next(_zero)_bit suggested by jg.kim

When f2fs issues discard command, if segment is contiguous,
let's issue more large segment to gather adjacent segments.

** blktrace **
179,1    0     5859    42.619023770   971  C   D 131072 + 2097152 [0]
179,1    0    33665   108.840475468   971  C   D 2228224 + 2494464 [0]
179,1    0    33671   109.131616427   971  C   D 14909440 + 344064 [0]
179,1    0    33677   109.137100677   971  C   D 15261696 + 4096 [0]

Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
---
 fs/f2fs/segment.c | 36 +++++++++++++++++++++---------------
 1 file changed, 21 insertions(+), 15 deletions(-)

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 86dc28949192..fa284d397199 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -139,27 +139,33 @@ static void set_prefree_as_free_segments(struct f2fs_sb_info *sbi)
 void clear_prefree_segments(struct f2fs_sb_info *sbi)
 {
 	struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
-	unsigned int segno = -1;
+	unsigned long *prefree_map = dirty_i->dirty_segmap[PRE];
 	unsigned int total_segs = TOTAL_SEGS(sbi);
+	unsigned int start = 0, end = -1;
 
 	mutex_lock(&dirty_i->seglist_lock);
+
 	while (1) {
-		segno = find_next_bit(dirty_i->dirty_segmap[PRE], total_segs,
-				segno + 1);
-		if (segno >= total_segs)
+		int i;
+		start = find_next_bit(prefree_map, total_segs, end + 1);
+		if (start >= total_segs)
 			break;
+		end = find_next_zero_bit(prefree_map, total_segs, start + 1);
+
+		for (i = start; i < end; i++)
+			clear_bit(i, prefree_map);
+
+		dirty_i->nr_dirty[PRE] -= end - start;
+
+		if (!test_opt(sbi, DISCARD))
+			continue;
 
-		if (test_and_clear_bit(segno, dirty_i->dirty_segmap[PRE]))
-			dirty_i->nr_dirty[PRE]--;
-
-		/* Let's use trim */
-		if (test_opt(sbi, DISCARD))
-			blkdev_issue_discard(sbi->sb->s_bdev,
-					START_BLOCK(sbi, segno) <<
-					sbi->log_sectors_per_block,
-					1 << (sbi->log_sectors_per_block +
-						sbi->log_blocks_per_seg),
-					GFP_NOFS, 0);
+		blkdev_issue_discard(sbi->sb->s_bdev,
+				START_BLOCK(sbi, start) <<
+				sbi->log_sectors_per_block,
+				(1 << (sbi->log_sectors_per_block +
+				sbi->log_blocks_per_seg)) * (end - start),
+				GFP_NOFS, 0);
 	}
 	mutex_unlock(&dirty_i->seglist_lock);
 }
-- 
cgit 


From 2bf4fd31394a3f875ea093ee8a209f30b378cbf3 Mon Sep 17 00:00:00 2001
From: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Date: Mon, 11 Nov 2013 11:52:43 +1030
Subject: virtio_scsi: verify if queue is broken after virtqueue_get_buf()

If virtqueue_get_buf() returned with a NULL pointer avoid a possibly
endless loop by checking for a broken virtqueue.

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
 drivers/scsi/virtio_scsi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c
index e6bb2352df40..c3173dced870 100644
--- a/drivers/scsi/virtio_scsi.c
+++ b/drivers/scsi/virtio_scsi.c
@@ -224,6 +224,9 @@ static void virtscsi_vq_done(struct virtio_scsi *vscsi,
 		virtqueue_disable_cb(vq);
 		while ((buf = virtqueue_get_buf(vq, &len)) != NULL)
 			fn(vscsi, buf);
+
+		if (unlikely(virtqueue_is_broken(vq)))
+			break;
 	} while (!virtqueue_enable_cb(vq));
 	spin_unlock_irqrestore(&virtscsi_vq->vq_lock, flags);
 }
-- 
cgit 


From 9c8e612d9d622d6e094d67489f5a7da225eb0ea3 Mon Sep 17 00:00:00 2001
From: Christian Ruppert <christian.ruppert@abilis.com>
Date: Thu, 31 Oct 2013 13:58:27 +0100
Subject: ARC: [TB10x] Updates for GPIO and pinctrl

Device tree and Kconfig updates for GPIO and pinctrl drivers.

Signed-off-by: Christian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/boot/dts/abilis_tb100.dtsi    | 172 ++++++++++++++++---------------
 arch/arc/boot/dts/abilis_tb100_dvk.dts |  24 ++---
 arch/arc/boot/dts/abilis_tb101.dtsi    | 178 ++++++++++++++++++---------------
 arch/arc/boot/dts/abilis_tb101_dvk.dts |  24 ++---
 arch/arc/boot/dts/abilis_tb10x.dtsi    |   3 +-
 arch/arc/plat-tb10x/Kconfig            |   2 +
 6 files changed, 216 insertions(+), 187 deletions(-)

diff --git a/arch/arc/boot/dts/abilis_tb100.dtsi b/arch/arc/boot/dts/abilis_tb100.dtsi
index d9f8249aa66e..3942634f805a 100644
--- a/arch/arc/boot/dts/abilis_tb100.dtsi
+++ b/arch/arc/boot/dts/abilis_tb100.dtsi
@@ -43,124 +43,124 @@
 		iomux: iomux@FF10601c {
 			/* Port 1 */
 			pctl_tsin_s0: pctl-tsin-s0 {   /* Serial TS-in 0 */
-				pingrp = "mis0_pins";
+				abilis,function = "mis0";
 			};
 			pctl_tsin_s1: pctl-tsin-s1 {   /* Serial TS-in 1 */
-				pingrp = "mis1_pins";
+				abilis,function = "mis1";
 			};
 			pctl_gpio_a: pctl-gpio-a {     /* GPIO bank A */
-				pingrp = "gpioa_pins";
+				abilis,function = "gpioa";
 			};
 			pctl_tsin_p1: pctl-tsin-p1 {   /* Parallel TS-in 1 */
-				pingrp = "mip1_pins";
+				abilis,function = "mip1";
 			};
 			/* Port 2 */
 			pctl_tsin_s2: pctl-tsin-s2 {   /* Serial TS-in 2 */
-				pingrp = "mis2_pins";
+				abilis,function = "mis2";
 			};
 			pctl_tsin_s3: pctl-tsin-s3 {   /* Serial TS-in 3 */
-				pingrp = "mis3_pins";
+				abilis,function = "mis3";
 			};
 			pctl_gpio_c: pctl-gpio-c {     /* GPIO bank C */
-				pingrp = "gpioc_pins";
+				abilis,function = "gpioc";
 			};
 			pctl_tsin_p3: pctl-tsin-p3 {   /* Parallel TS-in 3 */
-				pingrp = "mip3_pins";
+				abilis,function = "mip3";
 			};
 			/* Port 3 */
 			pctl_tsin_s4: pctl-tsin-s4 {   /* Serial TS-in 4 */
-				pingrp = "mis4_pins";
+				abilis,function = "mis4";
 			};
 			pctl_tsin_s5: pctl-tsin-s5 {   /* Serial TS-in 5 */
-				pingrp = "mis5_pins";
+				abilis,function = "mis5";
 			};
 			pctl_gpio_e: pctl-gpio-e {     /* GPIO bank E */
-				pingrp = "gpioe_pins";
+				abilis,function = "gpioe";
 			};
 			pctl_tsin_p5: pctl-tsin-p5 {   /* Parallel TS-in 5 */
-				pingrp = "mip5_pins";
+				abilis,function = "mip5";
 			};
 			/* Port 4 */
 			pctl_tsin_s6: pctl-tsin-s6 {   /* Serial TS-in 6 */
-				pingrp = "mis6_pins";
+				abilis,function = "mis6";
 			};
 			pctl_tsin_s7: pctl-tsin-s7 {   /* Serial TS-in 7 */
-				pingrp = "mis7_pins";
+				abilis,function = "mis7";
 			};
 			pctl_gpio_g: pctl-gpio-g {     /* GPIO bank G */
-				pingrp = "gpiog_pins";
+				abilis,function = "gpiog";
 			};
 			pctl_tsin_p7: pctl-tsin-p7 {   /* Parallel TS-in 7 */
-				pingrp = "mip7_pins";
+				abilis,function = "mip7";
 			};
 			/* Port 5 */
 			pctl_gpio_j: pctl-gpio-j {     /* GPIO bank J */
-				pingrp = "gpioj_pins";
+				abilis,function = "gpioj";
 			};
 			pctl_gpio_k: pctl-gpio-k {     /* GPIO bank K */
-				pingrp = "gpiok_pins";
+				abilis,function = "gpiok";
 			};
 			pctl_ciplus: pctl-ciplus {     /* CI+ interface */
-				pingrp = "ciplus_pins";
+				abilis,function = "ciplus";
 			};
 			pctl_mcard: pctl-mcard {       /* M-Card interface */
-				pingrp = "mcard_pins";
+				abilis,function = "mcard";
 			};
 			/* Port 6 */
 			pctl_tsout_p: pctl-tsout-p {   /* Parallel TS-out */
-				pingrp = "mop_pins";
+				abilis,function = "mop";
 			};
 			pctl_tsout_s0: pctl-tsout-s0 { /* Serial TS-out 0 */
-				pingrp = "mos0_pins";
+				abilis,function = "mos0";
 			};
 			pctl_tsout_s1: pctl-tsout-s1 { /* Serial TS-out 1 */
-				pingrp = "mos1_pins";
+				abilis,function = "mos1";
 			};
 			pctl_tsout_s2: pctl-tsout-s2 { /* Serial TS-out 2 */
-				pingrp = "mos2_pins";
+				abilis,function = "mos2";
 			};
 			pctl_tsout_s3: pctl-tsout-s3 { /* Serial TS-out 3 */
-				pingrp = "mos3_pins";
+				abilis,function = "mos3";
 			};
 			/* Port 7 */
 			pctl_uart0: pctl-uart0 {       /* UART 0 */
-				pingrp = "uart0_pins";
+				abilis,function = "uart0";
 			};
 			pctl_uart1: pctl-uart1 {       /* UART 1 */
-				pingrp = "uart1_pins";
+				abilis,function = "uart1";
 			};
 			pctl_gpio_l: pctl-gpio-l {     /* GPIO bank L */
-				pingrp = "gpiol_pins";
+				abilis,function = "gpiol";
 			};
 			pctl_gpio_m: pctl-gpio-m {     /* GPIO bank M */
-				pingrp = "gpiom_pins";
+				abilis,function = "gpiom";
 			};
 			/* Port 8 */
 			pctl_spi3: pctl-spi3 {
-				pingrp = "spi3_pins";
+				abilis,function = "spi3";
 			};
 			/* Port 9 */
 			pctl_spi1: pctl-spi1 {
-				pingrp = "spi1_pins";
+				abilis,function = "spi1";
 			};
 			pctl_gpio_n: pctl-gpio-n {
-				pingrp = "gpion_pins";
+				abilis,function = "gpion";
 			};
 			/* Unmuxed GPIOs */
 			pctl_gpio_b: pctl-gpio-b {
-				pingrp = "gpiob_pins";
+				abilis,function = "gpiob";
 			};
 			pctl_gpio_d: pctl-gpio-d {
-				pingrp = "gpiod_pins";
+				abilis,function = "gpiod";
 			};
 			pctl_gpio_f: pctl-gpio-f {
-				pingrp = "gpiof_pins";
+				abilis,function = "gpiof";
 			};
 			pctl_gpio_h: pctl-gpio-h {
-				pingrp = "gpioh_pins";
+				abilis,function = "gpioh";
 			};
 			pctl_gpio_i: pctl-gpio-i {
-				pingrp = "gpioi_pins";
+				abilis,function = "gpioi";
 			};
 		};
 
@@ -172,9 +172,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF140000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <0>;
-			gpio-pins = <&pctl_gpio_a>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <3>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpioa";
 		};
 		gpiob: gpio@FF141000 {
 			compatible = "abilis,tb10x-gpio";
@@ -184,9 +185,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF141000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <3>;
-			gpio-pins = <&pctl_gpio_b>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <2>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpiob";
 		};
 		gpioc: gpio@FF142000 {
 			compatible = "abilis,tb10x-gpio";
@@ -196,9 +198,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF142000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <5>;
-			gpio-pins = <&pctl_gpio_c>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <3>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpioc";
 		};
 		gpiod: gpio@FF143000 {
 			compatible = "abilis,tb10x-gpio";
@@ -208,9 +211,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF143000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <8>;
-			gpio-pins = <&pctl_gpio_d>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <2>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpiod";
 		};
 		gpioe: gpio@FF144000 {
 			compatible = "abilis,tb10x-gpio";
@@ -220,9 +224,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF144000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <10>;
-			gpio-pins = <&pctl_gpio_e>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <3>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpioe";
 		};
 		gpiof: gpio@FF145000 {
 			compatible = "abilis,tb10x-gpio";
@@ -232,9 +237,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF145000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <13>;
-			gpio-pins = <&pctl_gpio_f>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <2>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpiof";
 		};
 		gpiog: gpio@FF146000 {
 			compatible = "abilis,tb10x-gpio";
@@ -244,9 +250,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF146000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <15>;
-			gpio-pins = <&pctl_gpio_g>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <3>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpiog";
 		};
 		gpioh: gpio@FF147000 {
 			compatible = "abilis,tb10x-gpio";
@@ -256,9 +263,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF147000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <18>;
-			gpio-pins = <&pctl_gpio_h>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <2>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpioh";
 		};
 		gpioi: gpio@FF148000 {
 			compatible = "abilis,tb10x-gpio";
@@ -268,9 +276,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF148000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <20>;
-			gpio-pins = <&pctl_gpio_i>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <12>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpioi";
 		};
 		gpioj: gpio@FF149000 {
 			compatible = "abilis,tb10x-gpio";
@@ -280,9 +289,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF149000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <32>;
-			gpio-pins = <&pctl_gpio_j>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <32>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpioj";
 		};
 		gpiok: gpio@FF14a000 {
 			compatible = "abilis,tb10x-gpio";
@@ -292,9 +302,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF14A000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <64>;
-			gpio-pins = <&pctl_gpio_k>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <22>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpiok";
 		};
 		gpiol: gpio@FF14b000 {
 			compatible = "abilis,tb10x-gpio";
@@ -304,9 +315,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF14B000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <86>;
-			gpio-pins = <&pctl_gpio_l>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <4>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpiol";
 		};
 		gpiom: gpio@FF14c000 {
 			compatible = "abilis,tb10x-gpio";
@@ -316,9 +328,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF14C000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <90>;
-			gpio-pins = <&pctl_gpio_m>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <4>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpiom";
 		};
 		gpion: gpio@FF14d000 {
 			compatible = "abilis,tb10x-gpio";
@@ -328,9 +341,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF14D000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <94>;
-			gpio-pins = <&pctl_gpio_n>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <5>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpion";
 		};
 	};
 };
diff --git a/arch/arc/boot/dts/abilis_tb100_dvk.dts b/arch/arc/boot/dts/abilis_tb100_dvk.dts
index ebc313a9f5b2..3dd6ed941464 100644
--- a/arch/arc/boot/dts/abilis_tb100_dvk.dts
+++ b/arch/arc/boot/dts/abilis_tb100_dvk.dts
@@ -64,62 +64,62 @@
 			compatible = "gpio-leds";
 			power {
 				label = "Power";
-				gpios = <&gpioi 0>;
+				gpios = <&gpioi 0 0>;
 				linux,default-trigger = "default-on";
 			};
 			heartbeat {
 				label = "Heartbeat";
-				gpios = <&gpioi 1>;
+				gpios = <&gpioi 1 0>;
 				linux,default-trigger = "heartbeat";
 			};
 			led2 {
 				label = "LED2";
-				gpios = <&gpioi 2>;
+				gpios = <&gpioi 2 0>;
 				default-state = "off";
 			};
 			led3 {
 				label = "LED3";
-				gpios = <&gpioi 3>;
+				gpios = <&gpioi 3 0>;
 				default-state = "off";
 			};
 			led4 {
 				label = "LED4";
-				gpios = <&gpioi 4>;
+				gpios = <&gpioi 4 0>;
 				default-state = "off";
 			};
 			led5 {
 				label = "LED5";
-				gpios = <&gpioi 5>;
+				gpios = <&gpioi 5 0>;
 				default-state = "off";
 			};
 			led6 {
 				label = "LED6";
-				gpios = <&gpioi 6>;
+				gpios = <&gpioi 6 0>;
 				default-state = "off";
 			};
 			led7 {
 				label = "LED7";
-				gpios = <&gpioi 7>;
+				gpios = <&gpioi 7 0>;
 				default-state = "off";
 			};
 			led8 {
 				label = "LED8";
-				gpios = <&gpioi 8>;
+				gpios = <&gpioi 8 0>;
 				default-state = "off";
 			};
 			led9 {
 				label = "LED9";
-				gpios = <&gpioi 9>;
+				gpios = <&gpioi 9 0>;
 				default-state = "off";
 			};
 			led10 {
 				label = "LED10";
-				gpios = <&gpioi 10>;
+				gpios = <&gpioi 10 0>;
 				default-state = "off";
 			};
 			led11 {
 				label = "LED11";
-				gpios = <&gpioi 11>;
+				gpios = <&gpioi 11 0>;
 				default-state = "off";
 			};
 		};
diff --git a/arch/arc/boot/dts/abilis_tb101.dtsi b/arch/arc/boot/dts/abilis_tb101.dtsi
index da8ca7941e67..b0467229a5c4 100644
--- a/arch/arc/boot/dts/abilis_tb101.dtsi
+++ b/arch/arc/boot/dts/abilis_tb101.dtsi
@@ -43,133 +43,133 @@
 		iomux: iomux@FF10601c {
 			/* Port 1 */
 			pctl_tsin_s0: pctl-tsin-s0 {   /* Serial TS-in 0 */
-				pingrp = "mis0_pins";
+				abilis,function = "mis0";
 			};
 			pctl_tsin_s1: pctl-tsin-s1 {   /* Serial TS-in 1 */
-				pingrp = "mis1_pins";
+				abilis,function = "mis1";
 			};
 			pctl_gpio_a: pctl-gpio-a {     /* GPIO bank A */
-				pingrp = "gpioa_pins";
+				abilis,function = "gpioa";
 			};
 			pctl_tsin_p1: pctl-tsin-p1 {   /* Parallel TS-in 1 */
-				pingrp = "mip1_pins";
+				abilis,function = "mip1";
 			};
 			/* Port 2 */
 			pctl_tsin_s2: pctl-tsin-s2 {   /* Serial TS-in 2 */
-				pingrp = "mis2_pins";
+				abilis,function = "mis2";
 			};
 			pctl_tsin_s3: pctl-tsin-s3 {   /* Serial TS-in 3 */
-				pingrp = "mis3_pins";
+				abilis,function = "mis3";
 			};
 			pctl_gpio_c: pctl-gpio-c {     /* GPIO bank C */
-				pingrp = "gpioc_pins";
+				abilis,function = "gpioc";
 			};
 			pctl_tsin_p3: pctl-tsin-p3 {   /* Parallel TS-in 3 */
-				pingrp = "mip3_pins";
+				abilis,function = "mip3";
 			};
 			/* Port 3 */
 			pctl_tsin_s4: pctl-tsin-s4 {   /* Serial TS-in 4 */
-				pingrp = "mis4_pins";
+				abilis,function = "mis4";
 			};
 			pctl_tsin_s5: pctl-tsin-s5 {   /* Serial TS-in 5 */
-				pingrp = "mis5_pins";
+				abilis,function = "mis5";
 			};
 			pctl_gpio_e: pctl-gpio-e {     /* GPIO bank E */
-				pingrp = "gpioe_pins";
+				abilis,function = "gpioe";
 			};
 			pctl_tsin_p5: pctl-tsin-p5 {   /* Parallel TS-in 5 */
-				pingrp = "mip5_pins";
+				abilis,function = "mip5";
 			};
 			/* Port 4 */
 			pctl_tsin_s6: pctl-tsin-s6 {   /* Serial TS-in 6 */
-				pingrp = "mis6_pins";
+				abilis,function = "mis6";
 			};
 			pctl_tsin_s7: pctl-tsin-s7 {   /* Serial TS-in 7 */
-				pingrp = "mis7_pins";
+				abilis,function = "mis7";
 			};
 			pctl_gpio_g: pctl-gpio-g {     /* GPIO bank G */
-				pingrp = "gpiog_pins";
+				abilis,function = "gpiog";
 			};
 			pctl_tsin_p7: pctl-tsin-p7 {   /* Parallel TS-in 7 */
-				pingrp = "mip7_pins";
+				abilis,function = "mip7";
 			};
 			/* Port 5 */
 			pctl_gpio_j: pctl-gpio-j {     /* GPIO bank J */
-				pingrp = "gpioj_pins";
+				abilis,function = "gpioj";
 			};
 			pctl_gpio_k: pctl-gpio-k {     /* GPIO bank K */
-				pingrp = "gpiok_pins";
+				abilis,function = "gpiok";
 			};
 			pctl_ciplus: pctl-ciplus {     /* CI+ interface */
-				pingrp = "ciplus_pins";
+				abilis,function = "ciplus";
 			};
 			pctl_mcard: pctl-mcard {       /* M-Card interface */
-				pingrp = "mcard_pins";
+				abilis,function = "mcard";
 			};
 			pctl_stc0: pctl-stc0 {         /* Smart card I/F 0 */
-				pingrp = "stc0_pins";
+				abilis,function = "stc0";
 			};
 			pctl_stc1: pctl-stc1 {         /* Smart card I/F 1 */
-				pingrp = "stc1_pins";
+				abilis,function = "stc1";
 			};
 			/* Port 6 */
 			pctl_tsout_p: pctl-tsout-p {   /* Parallel TS-out */
-				pingrp = "mop_pins";
+				abilis,function = "mop";
 			};
 			pctl_tsout_s0: pctl-tsout-s0 { /* Serial TS-out 0 */
-				pingrp = "mos0_pins";
+				abilis,function = "mos0";
 			};
 			pctl_tsout_s1: pctl-tsout-s1 { /* Serial TS-out 1 */
-				pingrp = "mos1_pins";
+				abilis,function = "mos1";
 			};
 			pctl_tsout_s2: pctl-tsout-s2 { /* Serial TS-out 2 */
-				pingrp = "mos2_pins";
+				abilis,function = "mos2";
 			};
 			pctl_tsout_s3: pctl-tsout-s3 { /* Serial TS-out 3 */
-				pingrp = "mos3_pins";
+				abilis,function = "mos3";
 			};
 			/* Port 7 */
 			pctl_uart0: pctl-uart0 {       /* UART 0 */
-				pingrp = "uart0_pins";
+				abilis,function = "uart0";
 			};
 			pctl_uart1: pctl-uart1 {       /* UART 1 */
-				pingrp = "uart1_pins";
+				abilis,function = "uart1";
 			};
 			pctl_gpio_l: pctl-gpio-l {     /* GPIO bank L */
-				pingrp = "gpiol_pins";
+				abilis,function = "gpiol";
 			};
 			pctl_gpio_m: pctl-gpio-m {     /* GPIO bank M */
-				pingrp = "gpiom_pins";
+				abilis,function = "gpiom";
 			};
 			/* Port 8 */
 			pctl_spi3: pctl-spi3 {
-				pingrp = "spi3_pins";
+				abilis,function = "spi3";
 			};
 			pctl_jtag: pctl-jtag {
-				pingrp = "jtag_pins";
+				abilis,function = "jtag";
 			};
 			/* Port 9 */
 			pctl_spi1: pctl-spi1 {
-				pingrp = "spi1_pins";
+				abilis,function = "spi1";
 			};
 			pctl_gpio_n: pctl-gpio-n {
-				pingrp = "gpion_pins";
+				abilis,function = "gpion";
 			};
 			/* Unmuxed GPIOs */
 			pctl_gpio_b: pctl-gpio-b {
-				pingrp = "gpiob_pins";
+				abilis,function = "gpiob";
 			};
 			pctl_gpio_d: pctl-gpio-d {
-				pingrp = "gpiod_pins";
+				abilis,function = "gpiod";
 			};
 			pctl_gpio_f: pctl-gpio-f {
-				pingrp = "gpiof_pins";
+				abilis,function = "gpiof";
 			};
 			pctl_gpio_h: pctl-gpio-h {
-				pingrp = "gpioh_pins";
+				abilis,function = "gpioh";
 			};
 			pctl_gpio_i: pctl-gpio-i {
-				pingrp = "gpioi_pins";
+				abilis,function = "gpioi";
 			};
 		};
 
@@ -181,9 +181,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF140000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <0>;
-			gpio-pins = <&pctl_gpio_a>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <3>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpioa";
 		};
 		gpiob: gpio@FF141000 {
 			compatible = "abilis,tb10x-gpio";
@@ -193,9 +194,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF141000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <3>;
-			gpio-pins = <&pctl_gpio_b>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <2>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpiob";
 		};
 		gpioc: gpio@FF142000 {
 			compatible = "abilis,tb10x-gpio";
@@ -205,9 +207,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF142000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <5>;
-			gpio-pins = <&pctl_gpio_c>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <3>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpioc";
 		};
 		gpiod: gpio@FF143000 {
 			compatible = "abilis,tb10x-gpio";
@@ -217,9 +220,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF143000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <8>;
-			gpio-pins = <&pctl_gpio_d>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <2>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpiod";
 		};
 		gpioe: gpio@FF144000 {
 			compatible = "abilis,tb10x-gpio";
@@ -229,9 +233,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF144000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <10>;
-			gpio-pins = <&pctl_gpio_e>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <3>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpioe";
 		};
 		gpiof: gpio@FF145000 {
 			compatible = "abilis,tb10x-gpio";
@@ -241,9 +246,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF145000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <13>;
-			gpio-pins = <&pctl_gpio_f>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <2>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpiof";
 		};
 		gpiog: gpio@FF146000 {
 			compatible = "abilis,tb10x-gpio";
@@ -253,9 +259,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF146000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <15>;
-			gpio-pins = <&pctl_gpio_g>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <3>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpiog";
 		};
 		gpioh: gpio@FF147000 {
 			compatible = "abilis,tb10x-gpio";
@@ -265,9 +272,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF147000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <18>;
-			gpio-pins = <&pctl_gpio_h>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <2>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpioh";
 		};
 		gpioi: gpio@FF148000 {
 			compatible = "abilis,tb10x-gpio";
@@ -277,9 +285,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF148000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <20>;
-			gpio-pins = <&pctl_gpio_i>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <12>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpioi";
 		};
 		gpioj: gpio@FF149000 {
 			compatible = "abilis,tb10x-gpio";
@@ -289,9 +298,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF149000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <32>;
-			gpio-pins = <&pctl_gpio_j>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <32>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpioj";
 		};
 		gpiok: gpio@FF14a000 {
 			compatible = "abilis,tb10x-gpio";
@@ -301,9 +311,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF14A000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <64>;
-			gpio-pins = <&pctl_gpio_k>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <22>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpiok";
 		};
 		gpiol: gpio@FF14b000 {
 			compatible = "abilis,tb10x-gpio";
@@ -313,9 +324,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF14B000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <86>;
-			gpio-pins = <&pctl_gpio_l>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <4>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpiol";
 		};
 		gpiom: gpio@FF14c000 {
 			compatible = "abilis,tb10x-gpio";
@@ -325,9 +337,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF14C000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <90>;
-			gpio-pins = <&pctl_gpio_m>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <4>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpiom";
 		};
 		gpion: gpio@FF14d000 {
 			compatible = "abilis,tb10x-gpio";
@@ -337,9 +350,10 @@
 			interrupts = <27 2>;
 			reg = <0xFF14D000 0x1000>;
 			gpio-controller;
-			#gpio-cells = <1>;
-			gpio-base  = <94>;
-			gpio-pins = <&pctl_gpio_n>;
+			#gpio-cells = <2>;
+			abilis,ngpio = <5>;
+			gpio-ranges = <&iomux 0 0 0>;
+			gpio-ranges-group-names = "gpion";
 		};
 	};
 };
diff --git a/arch/arc/boot/dts/abilis_tb101_dvk.dts b/arch/arc/boot/dts/abilis_tb101_dvk.dts
index b204657993aa..1cf51c280f28 100644
--- a/arch/arc/boot/dts/abilis_tb101_dvk.dts
+++ b/arch/arc/boot/dts/abilis_tb101_dvk.dts
@@ -64,62 +64,62 @@
 			compatible = "gpio-leds";
 			power {
 				label = "Power";
-				gpios = <&gpioi 0>;
+				gpios = <&gpioi 0 0>;
 				linux,default-trigger = "default-on";
 			};
 			heartbeat {
 				label = "Heartbeat";
-				gpios = <&gpioi 1>;
+				gpios = <&gpioi 1 0>;
 				linux,default-trigger = "heartbeat";
 			};
 			led2 {
 				label = "LED2";
-				gpios = <&gpioi 2>;
+				gpios = <&gpioi 2 0>;
 				default-state = "off";
 			};
 			led3 {
 				label = "LED3";
-				gpios = <&gpioi 3>;
+				gpios = <&gpioi 3 0>;
 				default-state = "off";
 			};
 			led4 {
 				label = "LED4";
-				gpios = <&gpioi 4>;
+				gpios = <&gpioi 4 0>;
 				default-state = "off";
 			};
 			led5 {
 				label = "LED5";
-				gpios = <&gpioi 5>;
+				gpios = <&gpioi 5 0>;
 				default-state = "off";
 			};
 			led6 {
 				label = "LED6";
-				gpios = <&gpioi 6>;
+				gpios = <&gpioi 6 0>;
 				default-state = "off";
 			};
 			led7 {
 				label = "LED7";
-				gpios = <&gpioi 7>;
+				gpios = <&gpioi 7 0>;
 				default-state = "off";
 			};
 			led8 {
 				label = "LED8";
-				gpios = <&gpioi 8>;
+				gpios = <&gpioi 8 0>;
 				default-state = "off";
 			};
 			led9 {
 				label = "LED9";
-				gpios = <&gpioi 9>;
+				gpios = <&gpioi 9 0>;
 				default-state = "off";
 			};
 			led10 {
 				label = "LED10";
-				gpios = <&gpioi 10>;
+				gpios = <&gpioi 10 0>;
 				default-state = "off";
 			};
 			led11 {
 				label = "LED11";
-				gpios = <&gpioi 11>;
+				gpios = <&gpioi 11 0>;
 				default-state = "off";
 			};
 		};
diff --git a/arch/arc/boot/dts/abilis_tb10x.dtsi b/arch/arc/boot/dts/abilis_tb10x.dtsi
index edf56f4749e1..a098d7c05e96 100644
--- a/arch/arc/boot/dts/abilis_tb10x.dtsi
+++ b/arch/arc/boot/dts/abilis_tb10x.dtsi
@@ -62,9 +62,8 @@
 		};
 
 		iomux: iomux@FF10601c {
-			#address-cells = <1>;
-			#size-cells = <1>;
 			compatible = "abilis,tb10x-iomux";
+			#gpio-range-cells = <3>;
 			reg = <0xFF10601c 0x4>;
 		};
 
diff --git a/arch/arc/plat-tb10x/Kconfig b/arch/arc/plat-tb10x/Kconfig
index 1ab386bb5da8..6994c188dc88 100644
--- a/arch/arc/plat-tb10x/Kconfig
+++ b/arch/arc/plat-tb10x/Kconfig
@@ -20,8 +20,10 @@ menuconfig ARC_PLAT_TB10X
 	bool "Abilis TB10x"
 	select COMMON_CLK
 	select PINCTRL
+	select PINCTRL_TB10X
 	select PINMUX
 	select ARCH_REQUIRE_GPIOLIB
+	select GPIO_TB10X
 	select TB10X_IRQC
 	help
 	  Support for platforms based on the TB10x home media gateway SOC by
-- 
cgit 


From 9037c3579a277f3a23ba476664629fda8c35f7c4 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Wed, 6 Nov 2013 17:52:19 +0100
Subject: ip6_output: fragment outgoing reassembled skb properly

If reassembled packet would fit into outdev MTU, it is not fragmented
according the original frag size and it is send as single big packet.

The second case is if skb is gso. In that case fragmentation does not happen
according to the original frag size.

This patch fixes these.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/ip6_output.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 91fb4e8212f5..5e31a909a2b0 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -125,7 +125,8 @@ static int ip6_finish_output2(struct sk_buff *skb)
 static int ip6_finish_output(struct sk_buff *skb)
 {
 	if ((skb->len > ip6_skb_dst_mtu(skb) && !skb_is_gso(skb)) ||
-	    dst_allfrag(skb_dst(skb)))
+	    dst_allfrag(skb_dst(skb)) ||
+	    (IP6CB(skb)->frag_max_size && skb->len > IP6CB(skb)->frag_max_size))
 		return ip6_fragment(skb, ip6_finish_output2);
 	else
 		return ip6_finish_output2(skb);
-- 
cgit 


From 6aafeef03b9d9ecf255f3a80ed85ee070260e1ae Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Wed, 6 Nov 2013 17:52:20 +0100
Subject: netfilter: push reasm skb through instead of original frag skbs

Pushing original fragments through causes several problems. For example
for matching, frags may not be matched correctly. Take following
example:

<example>
On HOSTA do:
ip6tables -I INPUT -p icmpv6 -j DROP
ip6tables -I INPUT -p icmpv6 -m icmp6 --icmpv6-type 128 -j ACCEPT

and on HOSTB you do:
ping6 HOSTA -s2000    (MTU is 1500)

Incoming echo requests will be filtered out on HOSTA. This issue does
not occur with smaller packets than MTU (where fragmentation does not happen)
</example>

As was discussed previously, the only correct solution seems to be to use
reassembled skb instead of separete frags. Doing this has positive side
effects in reducing sk_buff by one pointer (nfct_reasm) and also the reams
dances in ipvs and conntrack can be removed.

Future plan is to remove net/ipv6/netfilter/nf_conntrack_reasm.c
entirely and use code in net/ipv6/reassembly.c instead.

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Marcelo Ricardo Leitner <mleitner@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/skbuff.h                         | 32 ---------------
 include/net/ip_vs.h                            | 32 +--------------
 include/net/netfilter/ipv6/nf_defrag_ipv6.h    |  4 +-
 net/core/skbuff.c                              |  3 --
 net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c | 56 +-------------------------
 net/ipv6/netfilter/nf_conntrack_reasm.c        | 19 +--------
 net/ipv6/netfilter/nf_defrag_ipv6_hooks.c      |  7 +++-
 net/netfilter/ipvs/ip_vs_core.c                | 55 +------------------------
 net/netfilter/ipvs/ip_vs_pe_sip.c              |  8 +---
 9 files changed, 13 insertions(+), 203 deletions(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 036ec7d8a83a..215b5ea1cb30 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -337,11 +337,6 @@ typedef unsigned int sk_buff_data_t;
 typedef unsigned char *sk_buff_data_t;
 #endif
 
-#if defined(CONFIG_NF_DEFRAG_IPV4) || defined(CONFIG_NF_DEFRAG_IPV4_MODULE) || \
-    defined(CONFIG_NF_DEFRAG_IPV6) || defined(CONFIG_NF_DEFRAG_IPV6_MODULE)
-#define NET_SKBUFF_NF_DEFRAG_NEEDED 1
-#endif
-
 /** 
  *	struct sk_buff - socket buffer
  *	@next: Next buffer in list
@@ -374,7 +369,6 @@ typedef unsigned char *sk_buff_data_t;
  *	@protocol: Packet protocol from driver
  *	@destructor: Destruct function
  *	@nfct: Associated connection, if any
- *	@nfct_reasm: netfilter conntrack re-assembly pointer
  *	@nf_bridge: Saved data about a bridged frame - see br_netfilter.c
  *	@skb_iif: ifindex of device we arrived on
  *	@tc_index: Traffic control index
@@ -463,9 +457,6 @@ struct sk_buff {
 #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
 	struct nf_conntrack	*nfct;
 #endif
-#ifdef NET_SKBUFF_NF_DEFRAG_NEEDED
-	struct sk_buff		*nfct_reasm;
-#endif
 #ifdef CONFIG_BRIDGE_NETFILTER
 	struct nf_bridge_info	*nf_bridge;
 #endif
@@ -2595,18 +2586,6 @@ static inline void nf_conntrack_get(struct nf_conntrack *nfct)
 		atomic_inc(&nfct->use);
 }
 #endif
-#ifdef NET_SKBUFF_NF_DEFRAG_NEEDED
-static inline void nf_conntrack_get_reasm(struct sk_buff *skb)
-{
-	if (skb)
-		atomic_inc(&skb->users);
-}
-static inline void nf_conntrack_put_reasm(struct sk_buff *skb)
-{
-	if (skb)
-		kfree_skb(skb);
-}
-#endif
 #ifdef CONFIG_BRIDGE_NETFILTER
 static inline void nf_bridge_put(struct nf_bridge_info *nf_bridge)
 {
@@ -2625,10 +2604,6 @@ static inline void nf_reset(struct sk_buff *skb)
 	nf_conntrack_put(skb->nfct);
 	skb->nfct = NULL;
 #endif
-#ifdef NET_SKBUFF_NF_DEFRAG_NEEDED
-	nf_conntrack_put_reasm(skb->nfct_reasm);
-	skb->nfct_reasm = NULL;
-#endif
 #ifdef CONFIG_BRIDGE_NETFILTER
 	nf_bridge_put(skb->nf_bridge);
 	skb->nf_bridge = NULL;
@@ -2650,10 +2625,6 @@ static inline void __nf_copy(struct sk_buff *dst, const struct sk_buff *src)
 	nf_conntrack_get(src->nfct);
 	dst->nfctinfo = src->nfctinfo;
 #endif
-#ifdef NET_SKBUFF_NF_DEFRAG_NEEDED
-	dst->nfct_reasm = src->nfct_reasm;
-	nf_conntrack_get_reasm(src->nfct_reasm);
-#endif
 #ifdef CONFIG_BRIDGE_NETFILTER
 	dst->nf_bridge  = src->nf_bridge;
 	nf_bridge_get(src->nf_bridge);
@@ -2665,9 +2636,6 @@ static inline void nf_copy(struct sk_buff *dst, const struct sk_buff *src)
 #if defined(CONFIG_NF_CONNTRACK) || defined(CONFIG_NF_CONNTRACK_MODULE)
 	nf_conntrack_put(dst->nfct);
 #endif
-#ifdef NET_SKBUFF_NF_DEFRAG_NEEDED
-	nf_conntrack_put_reasm(dst->nfct_reasm);
-#endif
 #ifdef CONFIG_BRIDGE_NETFILTER
 	nf_bridge_put(dst->nf_bridge);
 #endif
diff --git a/include/net/ip_vs.h b/include/net/ip_vs.h
index cd7275f9c463..5679d927562b 100644
--- a/include/net/ip_vs.h
+++ b/include/net/ip_vs.h
@@ -109,7 +109,6 @@ extern int ip_vs_conn_tab_size;
 struct ip_vs_iphdr {
 	__u32 len;	/* IPv4 simply where L4 starts
 			   IPv6 where L4 Transport Header starts */
-	__u32 thoff_reasm; /* Transport Header Offset in nfct_reasm skb */
 	__u16 fragoffs; /* IPv6 fragment offset, 0 if first frag (or not frag)*/
 	__s16 protocol;
 	__s32 flags;
@@ -117,34 +116,12 @@ struct ip_vs_iphdr {
 	union nf_inet_addr daddr;
 };
 
-/* Dependency to module: nf_defrag_ipv6 */
-#if defined(CONFIG_NF_DEFRAG_IPV6) || defined(CONFIG_NF_DEFRAG_IPV6_MODULE)
-static inline struct sk_buff *skb_nfct_reasm(const struct sk_buff *skb)
-{
-	return skb->nfct_reasm;
-}
-static inline void *frag_safe_skb_hp(const struct sk_buff *skb, int offset,
-				      int len, void *buffer,
-				      const struct ip_vs_iphdr *ipvsh)
-{
-	if (unlikely(ipvsh->fragoffs && skb_nfct_reasm(skb)))
-		return skb_header_pointer(skb_nfct_reasm(skb),
-					  ipvsh->thoff_reasm, len, buffer);
-
-	return skb_header_pointer(skb, offset, len, buffer);
-}
-#else
-static inline struct sk_buff *skb_nfct_reasm(const struct sk_buff *skb)
-{
-	return NULL;
-}
 static inline void *frag_safe_skb_hp(const struct sk_buff *skb, int offset,
 				      int len, void *buffer,
 				      const struct ip_vs_iphdr *ipvsh)
 {
 	return skb_header_pointer(skb, offset, len, buffer);
 }
-#endif
 
 static inline void
 ip_vs_fill_ip4hdr(const void *nh, struct ip_vs_iphdr *iphdr)
@@ -171,19 +148,12 @@ ip_vs_fill_iph_skb(int af, const struct sk_buff *skb, struct ip_vs_iphdr *iphdr)
 			(struct ipv6hdr *)skb_network_header(skb);
 		iphdr->saddr.in6 = iph->saddr;
 		iphdr->daddr.in6 = iph->daddr;
-		/* ipv6_find_hdr() updates len, flags, thoff_reasm */
-		iphdr->thoff_reasm = 0;
+		/* ipv6_find_hdr() updates len, flags */
 		iphdr->len	 = 0;
 		iphdr->flags	 = 0;
 		iphdr->protocol  = ipv6_find_hdr(skb, &iphdr->len, -1,
 						 &iphdr->fragoffs,
 						 &iphdr->flags);
-		/* get proto from re-assembled packet and it's offset */
-		if (skb_nfct_reasm(skb))
-			iphdr->protocol = ipv6_find_hdr(skb_nfct_reasm(skb),
-							&iphdr->thoff_reasm,
-							-1, NULL, NULL);
-
 	} else
 #endif
 	{
diff --git a/include/net/netfilter/ipv6/nf_defrag_ipv6.h b/include/net/netfilter/ipv6/nf_defrag_ipv6.h
index 5613412e7dc2..27666d8a0bd0 100644
--- a/include/net/netfilter/ipv6/nf_defrag_ipv6.h
+++ b/include/net/netfilter/ipv6/nf_defrag_ipv6.h
@@ -6,9 +6,7 @@ void nf_defrag_ipv6_enable(void);
 int nf_ct_frag6_init(void);
 void nf_ct_frag6_cleanup(void);
 struct sk_buff *nf_ct_frag6_gather(struct sk_buff *skb, u32 user);
-void nf_ct_frag6_output(unsigned int hooknum, struct sk_buff *skb,
-			struct net_device *in, struct net_device *out,
-			int (*okfn)(struct sk_buff *));
+void nf_ct_frag6_consume_orig(struct sk_buff *skb);
 
 struct inet_frags_ctl;
 
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 8c5197fe55a4..8cec1e6b844d 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -592,9 +592,6 @@ static void skb_release_head_state(struct sk_buff *skb)
 #if IS_ENABLED(CONFIG_NF_CONNTRACK)
 	nf_conntrack_put(skb->nfct);
 #endif
-#ifdef NET_SKBUFF_NF_DEFRAG_NEEDED
-	nf_conntrack_put_reasm(skb->nfct_reasm);
-#endif
 #ifdef CONFIG_BRIDGE_NETFILTER
 	nf_bridge_put(skb->nf_bridge);
 #endif
diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
index 486545eb42ce..4cbc6b290dd5 100644
--- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
@@ -169,64 +169,13 @@ out:
 	return nf_conntrack_confirm(skb);
 }
 
-static unsigned int __ipv6_conntrack_in(struct net *net,
-					unsigned int hooknum,
-					struct sk_buff *skb,
-					const struct net_device *in,
-					const struct net_device *out,
-					int (*okfn)(struct sk_buff *))
-{
-	struct sk_buff *reasm = skb->nfct_reasm;
-	const struct nf_conn_help *help;
-	struct nf_conn *ct;
-	enum ip_conntrack_info ctinfo;
-
-	/* This packet is fragmented and has reassembled packet. */
-	if (reasm) {
-		/* Reassembled packet isn't parsed yet ? */
-		if (!reasm->nfct) {
-			unsigned int ret;
-
-			ret = nf_conntrack_in(net, PF_INET6, hooknum, reasm);
-			if (ret != NF_ACCEPT)
-				return ret;
-		}
-
-		/* Conntrack helpers need the entire reassembled packet in the
-		 * POST_ROUTING hook. In case of unconfirmed connections NAT
-		 * might reassign a helper, so the entire packet is also
-		 * required.
-		 */
-		ct = nf_ct_get(reasm, &ctinfo);
-		if (ct != NULL && !nf_ct_is_untracked(ct)) {
-			help = nfct_help(ct);
-			if ((help && help->helper) || !nf_ct_is_confirmed(ct)) {
-				nf_conntrack_get_reasm(reasm);
-				NF_HOOK_THRESH(NFPROTO_IPV6, hooknum, reasm,
-					       (struct net_device *)in,
-					       (struct net_device *)out,
-					       okfn, NF_IP6_PRI_CONNTRACK + 1);
-				return NF_DROP_ERR(-ECANCELED);
-			}
-		}
-
-		nf_conntrack_get(reasm->nfct);
-		skb->nfct = reasm->nfct;
-		skb->nfctinfo = reasm->nfctinfo;
-		return NF_ACCEPT;
-	}
-
-	return nf_conntrack_in(net, PF_INET6, hooknum, skb);
-}
-
 static unsigned int ipv6_conntrack_in(const struct nf_hook_ops *ops,
 				      struct sk_buff *skb,
 				      const struct net_device *in,
 				      const struct net_device *out,
 				      int (*okfn)(struct sk_buff *))
 {
-	return __ipv6_conntrack_in(dev_net(in), ops->hooknum, skb, in, out,
-				   okfn);
+	return nf_conntrack_in(dev_net(in), PF_INET6, ops->hooknum, skb);
 }
 
 static unsigned int ipv6_conntrack_local(const struct nf_hook_ops *ops,
@@ -240,8 +189,7 @@ static unsigned int ipv6_conntrack_local(const struct nf_hook_ops *ops,
 		net_notice_ratelimited("ipv6_conntrack_local: packet too short\n");
 		return NF_ACCEPT;
 	}
-	return __ipv6_conntrack_in(dev_net(out), ops->hooknum, skb, in, out,
-				   okfn);
+	return nf_conntrack_in(dev_net(out), PF_INET6, ops->hooknum, skb);
 }
 
 static struct nf_hook_ops ipv6_conntrack_ops[] __read_mostly = {
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 4a258263d8ec..767ab8da8218 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -633,31 +633,16 @@ ret_orig:
 	return skb;
 }
 
-void nf_ct_frag6_output(unsigned int hooknum, struct sk_buff *skb,
-			struct net_device *in, struct net_device *out,
-			int (*okfn)(struct sk_buff *))
+void nf_ct_frag6_consume_orig(struct sk_buff *skb)
 {
 	struct sk_buff *s, *s2;
-	unsigned int ret = 0;
 
 	for (s = NFCT_FRAG6_CB(skb)->orig; s;) {
-		nf_conntrack_put_reasm(s->nfct_reasm);
-		nf_conntrack_get_reasm(skb);
-		s->nfct_reasm = skb;
-
 		s2 = s->next;
 		s->next = NULL;
-
-		if (ret != -ECANCELED)
-			ret = NF_HOOK_THRESH(NFPROTO_IPV6, hooknum, s,
-					     in, out, okfn,
-					     NF_IP6_PRI_CONNTRACK_DEFRAG + 1);
-		else
-			kfree_skb(s);
-
+		consume_skb(s);
 		s = s2;
 	}
-	nf_conntrack_put_reasm(skb);
 }
 
 static int nf_ct_net_init(struct net *net)
diff --git a/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c b/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
index ec483aa3f60f..7b9a748c6bac 100644
--- a/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
+++ b/net/ipv6/netfilter/nf_defrag_ipv6_hooks.c
@@ -75,8 +75,11 @@ static unsigned int ipv6_defrag(const struct nf_hook_ops *ops,
 	if (reasm == skb)
 		return NF_ACCEPT;
 
-	nf_ct_frag6_output(ops->hooknum, reasm, (struct net_device *)in,
-			   (struct net_device *)out, okfn);
+	nf_ct_frag6_consume_orig(reasm);
+
+	NF_HOOK_THRESH(NFPROTO_IPV6, ops->hooknum, reasm,
+		       (struct net_device *) in, (struct net_device *) out,
+		       okfn, NF_IP6_PRI_CONNTRACK_DEFRAG + 1);
 
 	return NF_STOLEN;
 }
diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c
index 34fda62f40f6..4f26ee46b51f 100644
--- a/net/netfilter/ipvs/ip_vs_core.c
+++ b/net/netfilter/ipvs/ip_vs_core.c
@@ -1139,12 +1139,6 @@ ip_vs_out(unsigned int hooknum, struct sk_buff *skb, int af)
 	ip_vs_fill_iph_skb(af, skb, &iph);
 #ifdef CONFIG_IP_VS_IPV6
 	if (af == AF_INET6) {
-		if (!iph.fragoffs && skb_nfct_reasm(skb)) {
-			struct sk_buff *reasm = skb_nfct_reasm(skb);
-			/* Save fw mark for coming frags */
-			reasm->ipvs_property = 1;
-			reasm->mark = skb->mark;
-		}
 		if (unlikely(iph.protocol == IPPROTO_ICMPV6)) {
 			int related;
 			int verdict = ip_vs_out_icmp_v6(skb, &related,
@@ -1614,12 +1608,6 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
 
 #ifdef CONFIG_IP_VS_IPV6
 	if (af == AF_INET6) {
-		if (!iph.fragoffs && skb_nfct_reasm(skb)) {
-			struct sk_buff *reasm = skb_nfct_reasm(skb);
-			/* Save fw mark for coming frags. */
-			reasm->ipvs_property = 1;
-			reasm->mark = skb->mark;
-		}
 		if (unlikely(iph.protocol == IPPROTO_ICMPV6)) {
 			int related;
 			int verdict = ip_vs_in_icmp_v6(skb, &related, hooknum,
@@ -1671,9 +1659,8 @@ ip_vs_in(unsigned int hooknum, struct sk_buff *skb, int af)
 		/* sorry, all this trouble for a no-hit :) */
 		IP_VS_DBG_PKT(12, af, pp, skb, 0,
 			      "ip_vs_in: packet continues traversal as normal");
-		if (iph.fragoffs && !skb_nfct_reasm(skb)) {
+		if (iph.fragoffs) {
 			/* Fragment that couldn't be mapped to a conn entry
-			 * and don't have any pointer to a reasm skb
 			 * is missing module nf_defrag_ipv6
 			 */
 			IP_VS_DBG_RL("Unhandled frag, load nf_defrag_ipv6\n");
@@ -1755,38 +1742,6 @@ ip_vs_local_request4(const struct nf_hook_ops *ops, struct sk_buff *skb,
 
 #ifdef CONFIG_IP_VS_IPV6
 
-/*
- * AF_INET6 fragment handling
- * Copy info from first fragment, to the rest of them.
- */
-static unsigned int
-ip_vs_preroute_frag6(const struct nf_hook_ops *ops, struct sk_buff *skb,
-		     const struct net_device *in,
-		     const struct net_device *out,
-		     int (*okfn)(struct sk_buff *))
-{
-	struct sk_buff *reasm = skb_nfct_reasm(skb);
-	struct net *net;
-
-	/* Skip if not a "replay" from nf_ct_frag6_output or first fragment.
-	 * ipvs_property is set when checking first fragment
-	 * in ip_vs_in() and ip_vs_out().
-	 */
-	if (reasm)
-		IP_VS_DBG(2, "Fragment recv prop:%d\n", reasm->ipvs_property);
-	if (!reasm || !reasm->ipvs_property)
-		return NF_ACCEPT;
-
-	net = skb_net(skb);
-	if (!net_ipvs(net)->enable)
-		return NF_ACCEPT;
-
-	/* Copy stored fw mark, saved in ip_vs_{in,out} */
-	skb->mark = reasm->mark;
-
-	return NF_ACCEPT;
-}
-
 /*
  *	AF_INET6 handler in NF_INET_LOCAL_IN chain
  *	Schedule and forward packets from remote clients
@@ -1924,14 +1879,6 @@ static struct nf_hook_ops ip_vs_ops[] __read_mostly = {
 		.priority	= 100,
 	},
 #ifdef CONFIG_IP_VS_IPV6
-	/* After mangle & nat fetch 2:nd fragment and following */
-	{
-		.hook		= ip_vs_preroute_frag6,
-		.owner		= THIS_MODULE,
-		.pf		= NFPROTO_IPV6,
-		.hooknum	= NF_INET_PRE_ROUTING,
-		.priority	= NF_IP6_PRI_NAT_DST + 1,
-	},
 	/* After packet filtering, change source only for VS/NAT */
 	{
 		.hook		= ip_vs_reply6,
diff --git a/net/netfilter/ipvs/ip_vs_pe_sip.c b/net/netfilter/ipvs/ip_vs_pe_sip.c
index 9ef22bdce9f1..bed5f7042529 100644
--- a/net/netfilter/ipvs/ip_vs_pe_sip.c
+++ b/net/netfilter/ipvs/ip_vs_pe_sip.c
@@ -65,7 +65,6 @@ static int get_callid(const char *dptr, unsigned int dataoff,
 static int
 ip_vs_sip_fill_param(struct ip_vs_conn_param *p, struct sk_buff *skb)
 {
-	struct sk_buff *reasm = skb_nfct_reasm(skb);
 	struct ip_vs_iphdr iph;
 	unsigned int dataoff, datalen, matchoff, matchlen;
 	const char *dptr;
@@ -79,15 +78,10 @@ ip_vs_sip_fill_param(struct ip_vs_conn_param *p, struct sk_buff *skb)
 	/* todo: IPv6 fragments:
 	 *       I think this only should be done for the first fragment. /HS
 	 */
-	if (reasm) {
-		skb = reasm;
-		dataoff = iph.thoff_reasm + sizeof(struct udphdr);
-	} else
-		dataoff = iph.len + sizeof(struct udphdr);
+	dataoff = iph.len + sizeof(struct udphdr);
 
 	if (dataoff >= skb->len)
 		return -EINVAL;
-	/* todo: Check if this will mess-up the reasm skb !!! /HS */
 	retc = skb_linearize(skb);
 	if (retc < 0)
 		return retc;
-- 
cgit 


From 0123713957a1977fcb5fc93173122d8af58e0c2c Mon Sep 17 00:00:00 2001
From: Carolyn Wyborny <carolyn.wyborny@intel.com>
Date: Sat, 9 Nov 2013 04:52:14 -0800
Subject: igb: Update link modes display in ethtool

This patch fixes multiple problems in the link modes display in ethtool.
Newer parts have more complicated methods to determine actual link
capabilities.  Older parts cannot communicate with their SFP modules.
Finally, all the available defines are not displayed by ethtool.  This
updates the link modes to be as accurate as possible depending on what data
is available to the driver at any given time.

Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/intel/igb/igb_ethtool.c | 51 +++++++++++++++-------------
 1 file changed, 27 insertions(+), 24 deletions(-)

diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index b918ba3640f9..b0f3666b1d7f 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -146,6 +146,7 @@ static int igb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 	struct e1000_sfp_flags *eth_flags = &dev_spec->eth_flags;
 	u32 status;
 
+	status = rd32(E1000_STATUS);
 	if (hw->phy.media_type == e1000_media_type_copper) {
 
 		ecmd->supported = (SUPPORTED_10baseT_Half |
@@ -169,13 +170,22 @@ static int igb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 		ecmd->transceiver = XCVR_INTERNAL;
 	} else {
 		ecmd->supported = (SUPPORTED_FIBRE |
+				   SUPPORTED_1000baseKX_Full |
 				   SUPPORTED_Autoneg |
 				   SUPPORTED_Pause);
-		ecmd->advertising = ADVERTISED_FIBRE;
-
-		if ((eth_flags->e1000_base_lx) || (eth_flags->e1000_base_sx)) {
-			ecmd->supported |= SUPPORTED_1000baseT_Full;
-			ecmd->advertising |= ADVERTISED_1000baseT_Full;
+		ecmd->advertising = (ADVERTISED_FIBRE |
+				     ADVERTISED_1000baseKX_Full);
+		if (hw->mac.type == e1000_i354) {
+			if ((hw->device_id ==
+			     E1000_DEV_ID_I354_BACKPLANE_2_5GBPS) &&
+			    !(status & E1000_STATUS_2P5_SKU_OVER)) {
+				ecmd->supported |= SUPPORTED_2500baseX_Full;
+				ecmd->supported &=
+					~SUPPORTED_1000baseKX_Full;
+				ecmd->advertising |= ADVERTISED_2500baseX_Full;
+				ecmd->advertising &=
+					~ADVERTISED_1000baseKX_Full;
+			}
 		}
 		if (eth_flags->e100_base_fx) {
 			ecmd->supported |= SUPPORTED_100baseT_Full;
@@ -187,35 +197,29 @@ static int igb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 		ecmd->port = PORT_FIBRE;
 		ecmd->transceiver = XCVR_EXTERNAL;
 	}
-
 	if (hw->mac.autoneg != 1)
 		ecmd->advertising &= ~(ADVERTISED_Pause |
 				       ADVERTISED_Asym_Pause);
 
-	if (hw->fc.requested_mode == e1000_fc_full)
+	switch (hw->fc.requested_mode) {
+	case e1000_fc_full:
 		ecmd->advertising |= ADVERTISED_Pause;
-	else if (hw->fc.requested_mode == e1000_fc_rx_pause)
+		break;
+	case e1000_fc_rx_pause:
 		ecmd->advertising |= (ADVERTISED_Pause |
 				      ADVERTISED_Asym_Pause);
-	else if (hw->fc.requested_mode == e1000_fc_tx_pause)
+		break;
+	case e1000_fc_tx_pause:
 		ecmd->advertising |=  ADVERTISED_Asym_Pause;
-	else
+		break;
+	default:
 		ecmd->advertising &= ~(ADVERTISED_Pause |
 				       ADVERTISED_Asym_Pause);
-
-	status = rd32(E1000_STATUS);
-
+	}
 	if (status & E1000_STATUS_LU) {
-		if (hw->mac.type == e1000_i354) {
-			if ((status & E1000_STATUS_2P5_SKU) &&
-			    !(status & E1000_STATUS_2P5_SKU_OVER)) {
-				ecmd->supported = SUPPORTED_2500baseX_Full;
-				ecmd->advertising = ADVERTISED_2500baseX_Full;
-				ecmd->speed = SPEED_2500;
-			} else {
-				ecmd->supported = SUPPORTED_1000baseT_Full;
-				ecmd->advertising = ADVERTISED_1000baseT_Full;
-			}
+		if ((status & E1000_STATUS_2P5_SKU) &&
+		    !(status & E1000_STATUS_2P5_SKU_OVER)) {
+			ecmd->speed = SPEED_2500;
 		} else if (status & E1000_STATUS_SPEED_1000) {
 			ecmd->speed = SPEED_1000;
 		} else if (status & E1000_STATUS_SPEED_100) {
@@ -232,7 +236,6 @@ static int igb_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
 		ecmd->speed = -1;
 		ecmd->duplex = -1;
 	}
-
 	if ((hw->phy.media_type == e1000_media_type_fiber) ||
 	    hw->mac.autoneg)
 		ecmd->autoneg = AUTONEG_ENABLE;
-- 
cgit 


From 170e85430bcbe4d18e81b5a70bb163c741381092 Mon Sep 17 00:00:00 2001
From: Jacob Keller <jacob.e.keller@intel.com>
Date: Sat, 9 Nov 2013 04:52:32 -0800
Subject: ixgbe: add warning when max_vfs is out of range.

The max_vfs parameter has a limit of 63 and silently fails (adding 0 vfs) when
it is out of range. This patch adds a warning so that the user knows something
went wrong. Also, this patch moves the warning in ixgbe_enable_sriov() to where
max_vfs is checked, so that even an out of range value will show the deprecated
warning. Previously, an out of range parameter didn't even warn the user to use
the new sysfs interface instead.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c  | 17 +++++++++++++----
 drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c |  4 ----
 2 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index ec1bf3edb063..bd8f5239dfe6 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -133,7 +133,7 @@ static struct notifier_block dca_notifier = {
 static unsigned int max_vfs;
 module_param(max_vfs, uint, 0);
 MODULE_PARM_DESC(max_vfs,
-		 "Maximum number of virtual functions to allocate per physical function - default is zero and maximum value is 63");
+		 "Maximum number of virtual functions to allocate per physical function - default is zero and maximum value is 63. (Deprecated)");
 #endif /* CONFIG_PCI_IOV */
 
 static unsigned int allow_unsupported_sfp;
@@ -5023,11 +5023,20 @@ static int ixgbe_sw_init(struct ixgbe_adapter *adapter)
 	hw->fc.disable_fc_autoneg = ixgbe_device_supports_autoneg_fc(hw);
 
 #ifdef CONFIG_PCI_IOV
+	if (max_vfs > 0)
+		e_dev_warn("Enabling SR-IOV VFs using the max_vfs module parameter is deprecated - please use the pci sysfs interface instead.\n");
+
 	/* assign number of SR-IOV VFs */
-	if (hw->mac.type != ixgbe_mac_82598EB)
-		adapter->num_vfs = (max_vfs > 63) ? 0 : max_vfs;
+	if (hw->mac.type != ixgbe_mac_82598EB) {
+		if (max_vfs > 63) {
+			adapter->num_vfs = 0;
+			e_dev_warn("max_vfs parameter out of range. Not assigning any SR-IOV VFs\n");
+		} else {
+			adapter->num_vfs = max_vfs;
+		}
+	}
+#endif /* CONFIG_PCI_IOV */
 
-#endif
 	/* enable itr by default in dynamic mode */
 	adapter->rx_itr_setting = 1;
 	adapter->tx_itr_setting = 1;
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
index a8571e488ea4..d6f0c0d8cf11 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
@@ -129,10 +129,6 @@ void ixgbe_enable_sriov(struct ixgbe_adapter *adapter)
 	if (!pre_existing_vfs && !adapter->num_vfs)
 		return;
 
-	if (!pre_existing_vfs)
-		dev_warn(&adapter->pdev->dev,
-			 "Enabling SR-IOV VFs using the module parameter is deprecated - please use the pci sysfs interface.\n");
-
 	/* If there are pre-existing VFs then we have to force
 	 * use of that many - over ride any module parameter value.
 	 * This may result from the user unloading the PF driver
-- 
cgit 


From e267cb960ab790c94a5019272c0e4dac95dc4dba Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Mon, 11 Nov 2013 00:42:07 -0500
Subject: vlan: Implement vlan_dev_get_egress_qos_mask as an inline.

This is to avoid very silly Kconfig dependencies for modules
using this routine.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/if_vlan.h | 98 ++++++++++++++++++++++++++++++++++++++++++++++++-
 net/8021q/vlan.h        | 77 --------------------------------------
 net/8021q/vlan_dev.c    | 31 ++--------------
 3 files changed, 99 insertions(+), 107 deletions(-)

diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h
index f3088a0112cf..f252deb99454 100644
--- a/include/linux/if_vlan.h
+++ b/include/linux/if_vlan.h
@@ -88,8 +88,102 @@ extern struct net_device *__vlan_find_dev_deep(struct net_device *real_dev,
 					       __be16 vlan_proto, u16 vlan_id);
 extern struct net_device *vlan_dev_real_dev(const struct net_device *dev);
 extern u16 vlan_dev_vlan_id(const struct net_device *dev);
-extern u16 vlan_dev_get_egress_qos_mask(struct net_device *dev,
-					u32 skprio);
+
+/**
+ *	struct vlan_priority_tci_mapping - vlan egress priority mappings
+ *	@priority: skb priority
+ *	@vlan_qos: vlan priority: (skb->priority << 13) & 0xE000
+ *	@next: pointer to next struct
+ */
+struct vlan_priority_tci_mapping {
+	u32					priority;
+	u16					vlan_qos;
+	struct vlan_priority_tci_mapping	*next;
+};
+
+/**
+ *	struct vlan_pcpu_stats - VLAN percpu rx/tx stats
+ *	@rx_packets: number of received packets
+ *	@rx_bytes: number of received bytes
+ *	@rx_multicast: number of received multicast packets
+ *	@tx_packets: number of transmitted packets
+ *	@tx_bytes: number of transmitted bytes
+ *	@syncp: synchronization point for 64bit counters
+ *	@rx_errors: number of rx errors
+ *	@tx_dropped: number of tx drops
+ */
+struct vlan_pcpu_stats {
+	u64			rx_packets;
+	u64			rx_bytes;
+	u64			rx_multicast;
+	u64			tx_packets;
+	u64			tx_bytes;
+	struct u64_stats_sync	syncp;
+	u32			rx_errors;
+	u32			tx_dropped;
+};
+
+struct proc_dir_entry;
+struct netpoll;
+
+/**
+ *	struct vlan_dev_priv - VLAN private device data
+ *	@nr_ingress_mappings: number of ingress priority mappings
+ *	@ingress_priority_map: ingress priority mappings
+ *	@nr_egress_mappings: number of egress priority mappings
+ *	@egress_priority_map: hash of egress priority mappings
+ *	@vlan_proto: VLAN encapsulation protocol
+ *	@vlan_id: VLAN identifier
+ *	@flags: device flags
+ *	@real_dev: underlying netdevice
+ *	@real_dev_addr: address of underlying netdevice
+ *	@dent: proc dir entry
+ *	@vlan_pcpu_stats: ptr to percpu rx stats
+ */
+struct vlan_dev_priv {
+	unsigned int				nr_ingress_mappings;
+	u32					ingress_priority_map[8];
+	unsigned int				nr_egress_mappings;
+	struct vlan_priority_tci_mapping	*egress_priority_map[16];
+
+	__be16					vlan_proto;
+	u16					vlan_id;
+	u16					flags;
+
+	struct net_device			*real_dev;
+	unsigned char				real_dev_addr[ETH_ALEN];
+
+	struct proc_dir_entry			*dent;
+	struct vlan_pcpu_stats __percpu		*vlan_pcpu_stats;
+#ifdef CONFIG_NET_POLL_CONTROLLER
+	struct netpoll				*netpoll;
+#endif
+};
+
+static inline struct vlan_dev_priv *vlan_dev_priv(const struct net_device *dev)
+{
+	return netdev_priv(dev);
+}
+
+static inline u16
+vlan_dev_get_egress_qos_mask(struct net_device *dev, u32 skprio)
+{
+	struct vlan_priority_tci_mapping *mp;
+
+	smp_rmb(); /* coupled with smp_wmb() in vlan_dev_set_egress_priority() */
+
+	mp = vlan_dev_priv(dev)->egress_priority_map[(skprio & 0xF)];
+	while (mp) {
+		if (mp->priority == skprio) {
+			return mp->vlan_qos; /* This should already be shifted
+					      * to mask correctly with the
+					      * VLAN's TCI */
+		}
+		mp = mp->next;
+	}
+	return 0;
+}
+
 extern bool vlan_do_receive(struct sk_buff **skb);
 extern struct sk_buff *vlan_untag(struct sk_buff *skb);
 
diff --git a/net/8021q/vlan.h b/net/8021q/vlan.h
index a2caf00b82cc..5704ed9c3a23 100644
--- a/net/8021q/vlan.h
+++ b/net/8021q/vlan.h
@@ -5,83 +5,6 @@
 #include <linux/u64_stats_sync.h>
 #include <linux/list.h>
 
-
-/**
- *	struct vlan_priority_tci_mapping - vlan egress priority mappings
- *	@priority: skb priority
- *	@vlan_qos: vlan priority: (skb->priority << 13) & 0xE000
- *	@next: pointer to next struct
- */
-struct vlan_priority_tci_mapping {
-	u32					priority;
-	u16					vlan_qos;
-	struct vlan_priority_tci_mapping	*next;
-};
-
-
-/**
- *	struct vlan_pcpu_stats - VLAN percpu rx/tx stats
- *	@rx_packets: number of received packets
- *	@rx_bytes: number of received bytes
- *	@rx_multicast: number of received multicast packets
- *	@tx_packets: number of transmitted packets
- *	@tx_bytes: number of transmitted bytes
- *	@syncp: synchronization point for 64bit counters
- *	@rx_errors: number of rx errors
- *	@tx_dropped: number of tx drops
- */
-struct vlan_pcpu_stats {
-	u64			rx_packets;
-	u64			rx_bytes;
-	u64			rx_multicast;
-	u64			tx_packets;
-	u64			tx_bytes;
-	struct u64_stats_sync	syncp;
-	u32			rx_errors;
-	u32			tx_dropped;
-};
-
-struct netpoll;
-
-/**
- *	struct vlan_dev_priv - VLAN private device data
- *	@nr_ingress_mappings: number of ingress priority mappings
- *	@ingress_priority_map: ingress priority mappings
- *	@nr_egress_mappings: number of egress priority mappings
- *	@egress_priority_map: hash of egress priority mappings
- *	@vlan_proto: VLAN encapsulation protocol
- *	@vlan_id: VLAN identifier
- *	@flags: device flags
- *	@real_dev: underlying netdevice
- *	@real_dev_addr: address of underlying netdevice
- *	@dent: proc dir entry
- *	@vlan_pcpu_stats: ptr to percpu rx stats
- */
-struct vlan_dev_priv {
-	unsigned int				nr_ingress_mappings;
-	u32					ingress_priority_map[8];
-	unsigned int				nr_egress_mappings;
-	struct vlan_priority_tci_mapping	*egress_priority_map[16];
-
-	__be16					vlan_proto;
-	u16					vlan_id;
-	u16					flags;
-
-	struct net_device			*real_dev;
-	unsigned char				real_dev_addr[ETH_ALEN];
-
-	struct proc_dir_entry			*dent;
-	struct vlan_pcpu_stats __percpu		*vlan_pcpu_stats;
-#ifdef CONFIG_NET_POLL_CONTROLLER
-	struct netpoll				*netpoll;
-#endif
-};
-
-static inline struct vlan_dev_priv *vlan_dev_priv(const struct net_device *dev)
-{
-	return netdev_priv(dev);
-}
-
 /* if this changes, algorithm will have to be reworked because this
  * depends on completely exhausting the VLAN identifier space.  Thus
  * it gives constant time look-up, but in many cases it wastes memory.
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 13904a414929..8db1b985dbf1 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -68,31 +68,6 @@ static int vlan_dev_rebuild_header(struct sk_buff *skb)
 	return 0;
 }
 
-static inline u16
-__vlan_dev_get_egress_qos_mask(struct net_device *dev, u32 skprio)
-{
-	struct vlan_priority_tci_mapping *mp;
-
-	smp_rmb(); /* coupled with smp_wmb() in vlan_dev_set_egress_priority() */
-
-	mp = vlan_dev_priv(dev)->egress_priority_map[(skprio & 0xF)];
-	while (mp) {
-		if (mp->priority == skprio) {
-			return mp->vlan_qos; /* This should already be shifted
-					      * to mask correctly with the
-					      * VLAN's TCI */
-		}
-		mp = mp->next;
-	}
-	return 0;
-}
-
-u16 vlan_dev_get_egress_qos_mask(struct net_device *dev, u32 skprio)
-{
-	return __vlan_dev_get_egress_qos_mask(dev, skprio);
-}
-EXPORT_SYMBOL(vlan_dev_get_egress_qos_mask);
-
 /*
  *	Create the VLAN header for an arbitrary protocol layer
  *
@@ -117,7 +92,7 @@ static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
 		vhdr = (struct vlan_hdr *) skb_push(skb, VLAN_HLEN);
 
 		vlan_tci = vlan->vlan_id;
-		vlan_tci |= __vlan_dev_get_egress_qos_mask(dev, skb->priority);
+		vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb->priority);
 		vhdr->h_vlan_TCI = htons(vlan_tci);
 
 		/*
@@ -174,7 +149,7 @@ static netdev_tx_t vlan_dev_hard_start_xmit(struct sk_buff *skb,
 	    vlan->flags & VLAN_FLAG_REORDER_HDR) {
 		u16 vlan_tci;
 		vlan_tci = vlan->vlan_id;
-		vlan_tci |= __vlan_dev_get_egress_qos_mask(dev, skb->priority);
+		vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb->priority);
 		skb = __vlan_hwaccel_put_tag(skb, vlan->vlan_proto, vlan_tci);
 	}
 
@@ -259,7 +234,7 @@ int vlan_dev_set_egress_priority(const struct net_device *dev,
 	np->vlan_qos = vlan_qos;
 	/* Before inserting this element in hash table, make sure all its fields
 	 * are committed to memory.
-	 * coupled with smp_rmb() in __vlan_dev_get_egress_qos_mask()
+	 * coupled with smp_rmb() in vlan_dev_get_egress_qos_mask()
 	 */
 	smp_wmb();
 	vlan->egress_priority_map[skb_prio & 0xF] = np;
-- 
cgit 


From 1fa8455deb92e9ec7756df23030e73b2d28eeca7 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Sun, 10 Nov 2013 21:55:27 -0800
Subject: bcache: Fix dirty_data accounting

Dirty data accounting wasn't quite right - firstly, we were adding the key we're
inserting after it could have merged with another dirty key already in the
btree, and secondly we could sometimes pass the wrong offset to
bcache_dev_sectors_dirty_add() for dirty data we were overwriting - which is
important when tracking dirty data by stripe.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Cc: linux-stable <stable@vger.kernel.org> # >= v3.10
---
 drivers/md/bcache/btree.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index f42fc7ed9cd6..d1734d9d9c79 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -1742,6 +1742,9 @@ static bool fix_overlapping_extents(struct btree *b,
 		if (bkey_cmp(insert, k) < 0) {
 			bch_cut_front(insert, k);
 		} else {
+			if (bkey_cmp(&START_KEY(insert), &START_KEY(k)) > 0)
+				old_offset = KEY_START(insert);
+
 			if (bkey_written(b, k) &&
 			    bkey_cmp(&START_KEY(insert), &START_KEY(k)) <= 0) {
 				/*
@@ -1803,6 +1806,10 @@ static bool btree_insert_key(struct btree *b, struct btree_op *op,
 		if (fix_overlapping_extents(b, k, &iter, op))
 			return false;
 
+		if (KEY_DIRTY(k))
+			bcache_dev_sectors_dirty_add(b->c, KEY_INODE(k),
+						     KEY_START(k), KEY_SIZE(k));
+
 		while (m != end(i) &&
 		       bkey_cmp(k, &START_KEY(m)) > 0)
 			prev = m, m = bkey_next(m);
@@ -1831,10 +1838,6 @@ static bool btree_insert_key(struct btree *b, struct btree_op *op,
 insert:	shift_keys(b, m, k);
 copy:	bkey_copy(m, k);
 merged:
-	if (KEY_DIRTY(k))
-		bcache_dev_sectors_dirty_add(b->c, KEY_INODE(k),
-					     KEY_START(k), KEY_SIZE(k));
-
 	bch_check_keys(b, "%u for %s", status, op_type(op));
 
 	if (b->level && !KEY_OFFSET(k))
-- 
cgit 


From 7857d5d470ec53bae187d144c69065ad3c0ebc21 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Tue, 8 Oct 2013 15:50:46 -0700
Subject: bcache: Fix a journalling performance bug

---
 drivers/md/bcache/journal.c | 47 +++++++++++++++++++++++++--------------------
 drivers/md/bcache/journal.h |  3 ++-
 2 files changed, 28 insertions(+), 22 deletions(-)

diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index 8435f81e5d85..7c9e6bf6aaba 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -554,32 +554,26 @@ static void journal_write_endio(struct bio *bio, int error)
 	struct journal_write *w = bio->bi_private;
 
 	cache_set_err_on(error, w->c, "journal io error");
-	closure_put(&w->c->journal.io.cl);
+	closure_put(&w->c->journal.io);
 }
 
 static void journal_write(struct closure *);
 
 static void journal_write_done(struct closure *cl)
 {
-	struct journal *j = container_of(cl, struct journal, io.cl);
-	struct cache_set *c = container_of(j, struct cache_set, journal);
-
+	struct journal *j = container_of(cl, struct journal, io);
 	struct journal_write *w = (j->cur == j->w)
 		? &j->w[1]
 		: &j->w[0];
 
 	__closure_wake_up(&w->wait);
-
-	if (c->journal_delay_ms)
-		closure_delay(&j->io, msecs_to_jiffies(c->journal_delay_ms));
-
-	continue_at(cl, journal_write, system_wq);
+	continue_at_nobarrier(cl, journal_write, system_wq);
 }
 
 static void journal_write_unlocked(struct closure *cl)
 	__releases(c->journal.lock)
 {
-	struct cache_set *c = container_of(cl, struct cache_set, journal.io.cl);
+	struct cache_set *c = container_of(cl, struct cache_set, journal.io);
 	struct cache *ca;
 	struct journal_write *w = c->journal.cur;
 	struct bkey *k = &c->journal.key;
@@ -660,7 +654,7 @@ static void journal_write_unlocked(struct closure *cl)
 
 static void journal_write(struct closure *cl)
 {
-	struct cache_set *c = container_of(cl, struct cache_set, journal.io.cl);
+	struct cache_set *c = container_of(cl, struct cache_set, journal.io);
 
 	spin_lock(&c->journal.lock);
 	journal_write_unlocked(cl);
@@ -669,7 +663,10 @@ static void journal_write(struct closure *cl)
 static void __journal_try_write(struct cache_set *c, bool noflush)
 	__releases(c->journal.lock)
 {
-	struct closure *cl = &c->journal.io.cl;
+	struct closure *cl = &c->journal.io;
+	struct journal_write *w = c->journal.cur;
+
+	w->need_write = true;
 
 	if (!closure_trylock(cl, &c->cl))
 		spin_unlock(&c->journal.lock);
@@ -688,18 +685,24 @@ void bch_journal_meta(struct cache_set *c, struct closure *cl)
 
 	if (CACHE_SYNC(&c->sb)) {
 		spin_lock(&c->journal.lock);
-
 		w = c->journal.cur;
-		w->need_write = true;
 
 		if (cl)
 			BUG_ON(!closure_wait(&w->wait, cl));
 
-		closure_flush(&c->journal.io);
 		__journal_try_write(c, true);
 	}
 }
 
+static void journal_write_work(struct work_struct *work)
+{
+	struct cache_set *c = container_of(to_delayed_work(work),
+					   struct cache_set,
+					   journal.work);
+	spin_lock(&c->journal.lock);
+	journal_try_write(c);
+}
+
 /*
  * Entry point to the journalling code - bio_insert() and btree_invalidate()
  * pass bch_journal() a list of keys to be journalled, and then
@@ -739,7 +742,6 @@ void bch_journal(struct closure *cl)
 	}
 
 	w = c->journal.cur;
-	w->need_write = true;
 	b = __set_blocks(w->data, w->data->keys + n, c);
 
 	if (b * c->sb.block_size > PAGE_SECTORS << JSET_BITS ||
@@ -755,8 +757,6 @@ void bch_journal(struct closure *cl)
 
 		BUG_ON(!closure_wait(&w->wait, cl));
 
-		closure_flush(&c->journal.io);
-
 		journal_try_write(c);
 		continue_at(cl, bch_journal, bcache_wq);
 	}
@@ -768,11 +768,15 @@ void bch_journal(struct closure *cl)
 	atomic_inc(op->journal);
 
 	if (op->flush_journal) {
-		closure_flush(&c->journal.io);
 		closure_wait(&w->wait, cl->parent);
+		journal_try_write(c);
+	} else if (!w->need_write) {
+		schedule_delayed_work(&c->journal.work,
+				      msecs_to_jiffies(c->journal_delay_ms));
+		spin_unlock(&c->journal.lock);
+	} else {
+		spin_unlock(&c->journal.lock);
 	}
-
-	journal_try_write(c);
 out:
 	bch_btree_insert_async(cl);
 }
@@ -790,6 +794,7 @@ int bch_journal_alloc(struct cache_set *c)
 
 	closure_init_unlocked(&j->io);
 	spin_lock_init(&j->lock);
+	INIT_DELAYED_WORK(&j->work, journal_write_work);
 
 	c->journal_delay_ms = 100;
 
diff --git a/drivers/md/bcache/journal.h b/drivers/md/bcache/journal.h
index 3d7851274b04..3ca93d3d566c 100644
--- a/drivers/md/bcache/journal.h
+++ b/drivers/md/bcache/journal.h
@@ -140,7 +140,8 @@ struct journal {
 	spinlock_t		lock;
 	/* used when waiting because the journal was full */
 	struct closure_waitlist	wait;
-	struct closure_with_timer io;
+	struct closure		io;
+	struct delayed_work	work;
 
 	/* Number of blocks free in the bucket(s) we're currently writing to */
 	unsigned		blocks_free;
-- 
cgit 


From dd9ec84da530d3a92e99ad1f52edae44533cc27f Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Thu, 24 Oct 2013 17:12:52 -0700
Subject: bcache: Fix a lockdep splat

bch_keybuf_del() takes a spinlock that can't be taken in interrupt context -
whoops. Fortunately, this code isn't enabled by default (you have to toggle a
sysfs thing).

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/movinggc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/bcache/movinggc.c b/drivers/md/bcache/movinggc.c
index 1a3b4f4786c3..dd8a035c5ae1 100644
--- a/drivers/md/bcache/movinggc.c
+++ b/drivers/md/bcache/movinggc.c
@@ -113,7 +113,7 @@ static void write_moving(struct closure *cl)
 		bch_insert_data(&s->op.cl);
 	}
 
-	continue_at(cl, write_moving_finish, NULL);
+	continue_at(cl, write_moving_finish, bch_gc_wq);
 }
 
 static void read_moving_submit(struct closure *cl)
-- 
cgit 


From 49b1212dfacfe51f951442563d1617bb06aac575 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 17:16:09 -0700
Subject: bcache: Use blkdev_issue_discard()

The old asynchronous discard code was really a relic from when all the
allocation code was asynchronous - now that allocation runs out of a
dedicated thread there's no point in keeping around all that complicated
machinery.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/alloc.c  | 114 +++++----------------------------------------
 drivers/md/bcache/bcache.h |  10 ----
 drivers/md/bcache/super.c  |   4 --
 3 files changed, 11 insertions(+), 117 deletions(-)

diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c
index e45f5575fd4d..e033b0203b68 100644
--- a/drivers/md/bcache/alloc.c
+++ b/drivers/md/bcache/alloc.c
@@ -63,13 +63,12 @@
 #include "bcache.h"
 #include "btree.h"
 
+#include <linux/blkdev.h>
 #include <linux/freezer.h>
 #include <linux/kthread.h>
 #include <linux/random.h>
 #include <trace/events/bcache.h>
 
-#define MAX_IN_FLIGHT_DISCARDS		8U
-
 /* Bucket heap / gen */
 
 uint8_t bch_inc_gen(struct cache *ca, struct bucket *b)
@@ -121,75 +120,6 @@ void bch_rescale_priorities(struct cache_set *c, int sectors)
 	mutex_unlock(&c->bucket_lock);
 }
 
-/* Discard/TRIM */
-
-struct discard {
-	struct list_head	list;
-	struct work_struct	work;
-	struct cache		*ca;
-	long			bucket;
-
-	struct bio		bio;
-	struct bio_vec		bv;
-};
-
-static void discard_finish(struct work_struct *w)
-{
-	struct discard *d = container_of(w, struct discard, work);
-	struct cache *ca = d->ca;
-	char buf[BDEVNAME_SIZE];
-
-	if (!test_bit(BIO_UPTODATE, &d->bio.bi_flags)) {
-		pr_notice("discard error on %s, disabling",
-			 bdevname(ca->bdev, buf));
-		d->ca->discard = 0;
-	}
-
-	mutex_lock(&ca->set->bucket_lock);
-
-	fifo_push(&ca->free, d->bucket);
-	list_add(&d->list, &ca->discards);
-	atomic_dec(&ca->discards_in_flight);
-
-	mutex_unlock(&ca->set->bucket_lock);
-
-	closure_wake_up(&ca->set->bucket_wait);
-	wake_up_process(ca->alloc_thread);
-
-	closure_put(&ca->set->cl);
-}
-
-static void discard_endio(struct bio *bio, int error)
-{
-	struct discard *d = container_of(bio, struct discard, bio);
-	schedule_work(&d->work);
-}
-
-static void do_discard(struct cache *ca, long bucket)
-{
-	struct discard *d = list_first_entry(&ca->discards,
-					     struct discard, list);
-
-	list_del(&d->list);
-	d->bucket = bucket;
-
-	atomic_inc(&ca->discards_in_flight);
-	closure_get(&ca->set->cl);
-
-	bio_init(&d->bio);
-
-	d->bio.bi_sector	= bucket_to_sector(ca->set, d->bucket);
-	d->bio.bi_bdev		= ca->bdev;
-	d->bio.bi_rw		= REQ_WRITE|REQ_DISCARD;
-	d->bio.bi_max_vecs	= 1;
-	d->bio.bi_io_vec	= d->bio.bi_inline_vecs;
-	d->bio.bi_size		= bucket_bytes(ca);
-	d->bio.bi_end_io	= discard_endio;
-	bio_set_prio(&d->bio, IOPRIO_PRIO_VALUE(IOPRIO_CLASS_IDLE, 0));
-
-	submit_bio(0, &d->bio);
-}
-
 /* Allocation */
 
 static inline bool can_inc_bucket_gen(struct bucket *b)
@@ -398,16 +328,18 @@ static int bch_allocator_thread(void *arg)
 			else
 				break;
 
-			allocator_wait(ca, (int) fifo_free(&ca->free) >
-				       atomic_read(&ca->discards_in_flight));
-
 			if (ca->discard) {
-				allocator_wait(ca, !list_empty(&ca->discards));
-				do_discard(ca, bucket);
-			} else {
-				fifo_push(&ca->free, bucket);
-				closure_wake_up(&ca->set->bucket_wait);
+				mutex_unlock(&ca->set->bucket_lock);
+				blkdev_issue_discard(ca->bdev,
+					bucket_to_sector(ca->set, bucket),
+					ca->sb.block_size, GFP_KERNEL, 0);
+				mutex_lock(&ca->set->bucket_lock);
 			}
+
+			allocator_wait(ca, !fifo_full(&ca->free));
+
+			fifo_push(&ca->free, bucket);
+			closure_wake_up(&ca->set->bucket_wait);
 		}
 
 		/*
@@ -556,22 +488,8 @@ int bch_cache_allocator_start(struct cache *ca)
 	return 0;
 }
 
-void bch_cache_allocator_exit(struct cache *ca)
-{
-	struct discard *d;
-
-	while (!list_empty(&ca->discards)) {
-		d = list_first_entry(&ca->discards, struct discard, list);
-		cancel_work_sync(&d->work);
-		list_del(&d->list);
-		kfree(d);
-	}
-}
-
 int bch_cache_allocator_init(struct cache *ca)
 {
-	unsigned i;
-
 	/*
 	 * Reserve:
 	 * Prio/gen writes first
@@ -589,15 +507,5 @@ int bch_cache_allocator_init(struct cache *ca)
 	ca->watermark[WATERMARK_NONE] = ca->free.size / 2 +
 		ca->watermark[WATERMARK_MOVINGGC];
 
-	for (i = 0; i < MAX_IN_FLIGHT_DISCARDS; i++) {
-		struct discard *d = kzalloc(sizeof(*d), GFP_KERNEL);
-		if (!d)
-			return -ENOMEM;
-
-		d->ca = ca;
-		INIT_WORK(&d->work, discard_finish);
-		list_add(&d->list, &ca->discards);
-	}
-
 	return 0;
 }
diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index 0f12382aa35d..bf37474a6888 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -620,15 +620,6 @@ struct cache {
 
 	bool			discard; /* Get rid of? */
 
-	/*
-	 * We preallocate structs for issuing discards to buckets, and keep them
-	 * on this list when they're not in use; do_discard() issues discards
-	 * whenever there's work to do and is called by free_some_buckets() and
-	 * when a discard finishes.
-	 */
-	atomic_t		discards_in_flight;
-	struct list_head	discards;
-
 	struct journal_device	journal;
 
 	/* The rest of this all shows up in sysfs */
@@ -1222,7 +1213,6 @@ int bch_btree_cache_alloc(struct cache_set *);
 void bch_moving_init_cache_set(struct cache_set *);
 
 int bch_cache_allocator_start(struct cache *ca);
-void bch_cache_allocator_exit(struct cache *ca);
 int bch_cache_allocator_init(struct cache *ca);
 
 void bch_debug_exit(void);
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 547c4c57b052..fd37342a7eb5 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1725,8 +1725,6 @@ void bch_cache_release(struct kobject *kobj)
 	if (ca->set)
 		ca->set->cache[ca->sb.nr_this_dev] = NULL;
 
-	bch_cache_allocator_exit(ca);
-
 	bio_split_pool_free(&ca->bio_split_hook);
 
 	free_pages((unsigned long) ca->disk_buckets, ilog2(bucket_pages(ca)));
@@ -1758,8 +1756,6 @@ static int cache_alloc(struct cache_sb *sb, struct cache *ca)
 	__module_get(THIS_MODULE);
 	kobject_init(&ca->kobj, &bch_cache_ktype);
 
-	INIT_LIST_HEAD(&ca->discards);
-
 	bio_init(&ca->journal.bio);
 	ca->journal.bio.bi_max_vecs = 8;
 	ca->journal.bio.bi_io_vec = ca->journal.bio.bi_inline_vecs;
-- 
cgit 


From 77c320eb46e216c17aee5c943949229ccfed6904 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Thu, 11 Jul 2013 19:42:51 -0700
Subject: bcache: Add on error panic/unregister setting

Works kind of like the ext4 setting, to panic or remount read only on
errors.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bcache.h  |  6 ++++++
 drivers/md/bcache/journal.c |  7 +++----
 drivers/md/bcache/super.c   |  6 +++++-
 drivers/md/bcache/sysfs.c   | 21 +++++++++++++++++++++
 4 files changed, 35 insertions(+), 5 deletions(-)

diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index bf37474a6888..578615604be5 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -843,8 +843,14 @@ struct cache_set {
 	atomic_long_t		cache_read_races;
 	atomic_long_t		writeback_keys_done;
 	atomic_long_t		writeback_keys_failed;
+
+	enum			{
+		ON_ERROR_UNREGISTER,
+		ON_ERROR_PANIC,
+	}			on_error;
 	unsigned		error_limit;
 	unsigned		error_decay;
+
 	unsigned short		journal_delay_ms;
 	unsigned		verify:1;
 	unsigned		key_merging_disabled:1;
diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index 7c9e6bf6aaba..9e8775872dba 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -305,10 +305,9 @@ int bch_journal_replay(struct cache_set *s, struct list_head *list,
 	list_for_each_entry(i, list, list) {
 		BUG_ON(i->pin && atomic_read(i->pin) != 1);
 
-		if (n != i->j.seq)
-			pr_err(
-		"journal entries %llu-%llu missing! (replaying %llu-%llu)\n",
-		n, i->j.seq - 1, start, end);
+		cache_set_err_on(n != i->j.seq, s,
+"bcache: journal entries %llu-%llu missing! (replaying %llu-%llu)",
+				 n, i->j.seq - 1, start, end);
 
 		for (k = i->j.start;
 		     k < end(&i->j);
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index fd37342a7eb5..74f2e902d876 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1260,7 +1260,8 @@ bool bch_cache_set_error(struct cache_set *c, const char *fmt, ...)
 {
 	va_list args;
 
-	if (test_bit(CACHE_SET_STOPPING, &c->flags))
+	if (c->on_error != ON_ERROR_PANIC &&
+	    test_bit(CACHE_SET_STOPPING, &c->flags))
 		return false;
 
 	/* XXX: we can be called from atomic context
@@ -1275,6 +1276,9 @@ bool bch_cache_set_error(struct cache_set *c, const char *fmt, ...)
 
 	printk(", disabling caching\n");
 
+	if (c->on_error == ON_ERROR_PANIC)
+		panic("panic forced after error\n");
+
 	bch_cache_set_unregister(c);
 	return true;
 }
diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
index 924dcfdae111..4211d82179fc 100644
--- a/drivers/md/bcache/sysfs.c
+++ b/drivers/md/bcache/sysfs.c
@@ -21,6 +21,12 @@ static const char * const cache_replacement_policies[] = {
 	NULL
 };
 
+static const char * const error_actions[] = {
+	"unregister",
+	"panic",
+	NULL
+};
+
 write_attribute(attach);
 write_attribute(detach);
 write_attribute(unregister);
@@ -90,6 +96,7 @@ rw_attribute(discard);
 rw_attribute(running);
 rw_attribute(label);
 rw_attribute(readahead);
+rw_attribute(errors);
 rw_attribute(io_error_limit);
 rw_attribute(io_error_halflife);
 rw_attribute(verify);
@@ -492,6 +499,10 @@ lock_root:
 	sysfs_print(writeback_keys_failed,
 		    atomic_long_read(&c->writeback_keys_failed));
 
+	if (attr == &sysfs_errors)
+		return bch_snprint_string_list(buf, PAGE_SIZE, error_actions,
+					       c->on_error);
+
 	/* See count_io_errors for why 88 */
 	sysfs_print(io_error_halflife,	c->error_decay * 88);
 	sysfs_print(io_error_limit,	c->error_limit >> IO_ERROR_SHIFT);
@@ -569,6 +580,15 @@ STORE(__bch_cache_set)
 	sysfs_strtoul(congested_write_threshold_us,
 		      c->congested_write_threshold_us);
 
+	if (attr == &sysfs_errors) {
+		ssize_t v = bch_read_string_list(buf, error_actions);
+
+		if (v < 0)
+			return v;
+
+		c->on_error = v;
+	}
+
 	if (attr == &sysfs_io_error_limit)
 		c->error_limit = strtoul_or_return(buf) << IO_ERROR_SHIFT;
 
@@ -620,6 +640,7 @@ static struct attribute *bch_cache_set_files[] = {
 	&sysfs_average_key_size,
 	&sysfs_dirty_data,
 
+	&sysfs_errors,
 	&sysfs_io_error_limit,
 	&sysfs_io_error_halflife,
 	&sysfs_congested,
-- 
cgit 


From 2d679fc75678551485df62274edaed452becd16d Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Sat, 17 Aug 2013 02:13:15 -0700
Subject: bcache: Stripe size isn't necessarily a power of two

Originally I got this right... except that the divides didn't use
do_div(), which broke 32 bit kernels. When I went to fix that, I forgot
that the raid stripe size usually isn't a power of two... doh

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bcache.h    |  2 +-
 drivers/md/bcache/super.c     |  7 +++----
 drivers/md/bcache/sysfs.c     |  2 +-
 drivers/md/bcache/writeback.c | 33 +++++++++++++++++----------------
 drivers/md/bcache/writeback.h |  8 +++++---
 5 files changed, 27 insertions(+), 25 deletions(-)

diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index 578615604be5..6e836f22f276 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -437,7 +437,7 @@ struct bcache_device {
 	int			flush_done;
 
 	uint64_t		nr_stripes;
-	unsigned		stripe_size_bits;
+	unsigned		stripe_size;
 	atomic_t		*stripe_sectors_dirty;
 
 	unsigned long		sectors_dirty_last;
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 74f2e902d876..d3169c0652f8 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -761,11 +761,10 @@ static int bcache_device_init(struct bcache_device *d, unsigned block_size,
 	struct request_queue *q;
 	size_t n;
 
-	if (!d->stripe_size_bits)
-		d->stripe_size_bits = 31;
+	if (!d->stripe_size)
+		d->stripe_size = 1 << 31;
 
-	d->nr_stripes = round_up(sectors, 1 << d->stripe_size_bits) >>
-		d->stripe_size_bits;
+	d->nr_stripes = DIV_ROUND_UP_ULL(sectors, d->stripe_size);
 
 	if (!d->nr_stripes || d->nr_stripes > SIZE_MAX / sizeof(atomic_t))
 		return -ENOMEM;
diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
index 4211d82179fc..b3a66f17231d 100644
--- a/drivers/md/bcache/sysfs.c
+++ b/drivers/md/bcache/sysfs.c
@@ -157,7 +157,7 @@ SHOW(__bch_cached_dev)
 	sysfs_hprint(dirty_data,
 		     bcache_dev_sectors_dirty(&dc->disk) << 9);
 
-	sysfs_hprint(stripe_size,	(1 << dc->disk.stripe_size_bits) << 9);
+	sysfs_hprint(stripe_size,	dc->disk.stripe_size << 9);
 	var_printf(partial_stripes_expensive,	"%u");
 
 	var_printf(sequential_merge,	"%i");
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index ba3ee48320f2..b842fbfbf1db 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -114,25 +114,25 @@ static bool dirty_pred(struct keybuf *buf, struct bkey *k)
 
 static bool dirty_full_stripe_pred(struct keybuf *buf, struct bkey *k)
 {
-	uint64_t stripe;
+	uint64_t stripe = KEY_START(k);
 	unsigned nr_sectors = KEY_SIZE(k);
 	struct cached_dev *dc = container_of(buf, struct cached_dev,
 					     writeback_keys);
-	unsigned stripe_size = 1 << dc->disk.stripe_size_bits;
 
 	if (!KEY_DIRTY(k))
 		return false;
 
-	stripe = KEY_START(k) >> dc->disk.stripe_size_bits;
-	while (1) {
-		if (atomic_read(dc->disk.stripe_sectors_dirty + stripe) !=
-		    stripe_size)
-			return false;
+	do_div(stripe, dc->disk.stripe_size);
 
-		if (nr_sectors <= stripe_size)
+	while (1) {
+		if (atomic_read(dc->disk.stripe_sectors_dirty + stripe) ==
+		    dc->disk.stripe_size)
 			return true;
 
-		nr_sectors -= stripe_size;
+		if (nr_sectors <= dc->disk.stripe_size)
+			return false;
+
+		nr_sectors -= dc->disk.stripe_size;
 		stripe++;
 	}
 }
@@ -186,11 +186,12 @@ static void refill_dirty(struct closure *cl)
 
 		for (i = 0; i < dc->disk.nr_stripes; i++)
 			if (atomic_read(dc->disk.stripe_sectors_dirty + i) ==
-			    1 << dc->disk.stripe_size_bits)
+			    dc->disk.stripe_size)
 				goto full_stripes;
 
 		goto normal_refill;
 full_stripes:
+		searched_from_start = false;	/* not searching entire btree */
 		bch_refill_keybuf(dc->disk.c, buf, &end,
 				  dirty_full_stripe_pred);
 	} else {
@@ -252,19 +253,19 @@ void bcache_dev_sectors_dirty_add(struct cache_set *c, unsigned inode,
 				  uint64_t offset, int nr_sectors)
 {
 	struct bcache_device *d = c->devices[inode];
-	unsigned stripe_size, stripe_offset;
-	uint64_t stripe;
+	unsigned stripe_offset;
+	uint64_t stripe = offset;
 
 	if (!d)
 		return;
 
-	stripe_size = 1 << d->stripe_size_bits;
-	stripe = offset >> d->stripe_size_bits;
-	stripe_offset = offset & (stripe_size - 1);
+	do_div(stripe, d->stripe_size);
+
+	stripe_offset = offset & (d->stripe_size - 1);
 
 	while (nr_sectors) {
 		int s = min_t(unsigned, abs(nr_sectors),
-			      stripe_size - stripe_offset);
+			      d->stripe_size - stripe_offset);
 
 		if (nr_sectors < 0)
 			s = -s;
diff --git a/drivers/md/bcache/writeback.h b/drivers/md/bcache/writeback.h
index c91f61bb95b6..34961888b5a9 100644
--- a/drivers/md/bcache/writeback.h
+++ b/drivers/md/bcache/writeback.h
@@ -18,16 +18,18 @@ static inline bool bcache_dev_stripe_dirty(struct bcache_device *d,
 					   uint64_t offset,
 					   unsigned nr_sectors)
 {
-	uint64_t stripe = offset >> d->stripe_size_bits;
+	uint64_t stripe = offset;
+
+	do_div(stripe, d->stripe_size);
 
 	while (1) {
 		if (atomic_read(d->stripe_sectors_dirty + stripe))
 			return true;
 
-		if (nr_sectors <= 1 << d->stripe_size_bits)
+		if (nr_sectors <= d->stripe_size)
 			return false;
 
-		nr_sectors -= 1 << d->stripe_size_bits;
+		nr_sectors -= d->stripe_size;
 		stripe++;
 	}
 }
-- 
cgit 


From 8304ad4dc818ffd701c2f3e90683b5b8013f44e2 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 17:20:00 -0700
Subject: bcache: Remove unnecessary check in should_split()

Checking i->seq was redundant, because since ages ago we always
initialize the new bset when advancing b->written

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/btree.h | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index 3333d3723633..8a1c7e6bbbe3 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -353,7 +353,7 @@ static inline void rw_unlock(bool w, struct btree *b)
 		    _w == insert_lock(op, _b))				\
 			_r = bch_btree_ ## fn(_b, op, ##__VA_ARGS__);	\
 		rw_unlock(_w, _b);					\
-		bch_cannibalize_unlock(c, &(op)->cl);		\
+		bch_cannibalize_unlock(c, &(op)->cl);			\
 	} while (_r == -EINTR);						\
 									\
 	_r;								\
@@ -363,8 +363,7 @@ static inline bool should_split(struct btree *b)
 {
 	struct bset *i = write_block(b);
 	return b->written >= btree_blocks(b) ||
-		(i->seq == b->sets[0].data->seq &&
-		 b->written + __set_blocks(i, i->keys + 15, b->c)
+		(b->written + __set_blocks(i, i->keys + 15, b->c)
 		 > btree_blocks(b));
 }
 
-- 
cgit 


From d6fd3b11cea82346837957feab25b0be48aa424c Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 17:20:19 -0700
Subject: bcache: Explicitly track btree node's parent

This is prep work for the reworked btree insertion code.

The way we set b->parent is ugly and hacky... the problem is, when
btree_split() or garbage collection splits or rewrites a btree node, the
parent changes for all its (potentially already cached) children.

I may change this later and add some code to look through the btree node
cache and find all our cached child nodes and change the parent pointer
then...

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/btree.c | 14 ++++++++++----
 drivers/md/bcache/btree.h | 16 ++++++++++------
 2 files changed, 20 insertions(+), 10 deletions(-)

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index d1734d9d9c79..87299baa8a1b 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -884,6 +884,7 @@ out:
 
 	lock_set_subclass(&b->lock.dep_map, level + 1, _THIS_IP_);
 	b->level	= level;
+	b->parent	= (void *) ~0UL;
 
 	mca_reinit(b);
 
@@ -1898,7 +1899,7 @@ out:
 
 static int btree_split(struct btree *b, struct btree_op *op)
 {
-	bool split, root = b == b->c->root;
+	bool split;
 	struct btree *n1, *n2 = NULL, *n3 = NULL;
 	uint64_t start_time = local_clock();
 
@@ -1920,7 +1921,7 @@ static int btree_split(struct btree *b, struct btree_op *op)
 		if (IS_ERR(n2))
 			goto err_free1;
 
-		if (root) {
+		if (!b->parent) {
 			n3 = bch_btree_node_alloc(b->c, b->level + 1, &op->cl);
 			if (IS_ERR(n3))
 				goto err_free2;
@@ -1928,7 +1929,8 @@ static int btree_split(struct btree *b, struct btree_op *op)
 
 		bch_btree_insert_keys(n1, op);
 
-		/* Has to be a linear search because we don't have an auxiliary
+		/*
+		 * Has to be a linear search because we don't have an auxiliary
 		 * search tree yet
 		 */
 
@@ -1960,6 +1962,8 @@ static int btree_split(struct btree *b, struct btree_op *op)
 	bch_btree_node_write(n1, &op->cl);
 
 	if (n3) {
+		/* Depth increases, make a new root */
+
 		bkey_copy_key(&n3->key, &MAX_KEY);
 		bch_btree_insert_keys(n3, op);
 		bch_btree_node_write(n3, &op->cl);
@@ -1967,7 +1971,9 @@ static int btree_split(struct btree *b, struct btree_op *op)
 		closure_sync(&op->cl);
 		bch_btree_set_root(n3);
 		rw_unlock(true, n3);
-	} else if (root) {
+	} else if (!b->parent) {
+		/* Root filled up but didn't need to be split */
+
 		op->keys.top = op->keys.bottom;
 		closure_sync(&op->cl);
 		bch_btree_set_root(n1);
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index 8a1c7e6bbbe3..6d2fb7550706 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -125,6 +125,7 @@ struct btree {
 	unsigned long		seq;
 	struct rw_semaphore	lock;
 	struct cache_set	*c;
+	struct btree		*parent;
 
 	unsigned long		flags;
 	uint16_t		written;	/* would be nice to kill */
@@ -327,12 +328,13 @@ static inline void rw_unlock(bool w, struct btree *b)
 ({									\
 	int _r, l = (b)->level - 1;					\
 	bool _w = l <= (op)->lock;					\
-	struct btree *_b = bch_btree_node_get((b)->c, key, l, op);	\
-	if (!IS_ERR(_b)) {						\
-		_r = bch_btree_ ## fn(_b, op, ##__VA_ARGS__);		\
-		rw_unlock(_w, _b);					\
+	struct btree *_child = bch_btree_node_get((b)->c, key, l, op);	\
+	if (!IS_ERR(_child)) {						\
+		_child->parent = (b);					\
+		_r = bch_btree_ ## fn(_child, op, ##__VA_ARGS__);	\
+		rw_unlock(_w, _child);					\
 	} else								\
-		_r = PTR_ERR(_b);					\
+		_r = PTR_ERR(_child);					\
 	_r;								\
 })
 
@@ -350,8 +352,10 @@ static inline void rw_unlock(bool w, struct btree *b)
 		bool _w = insert_lock(op, _b);				\
 		rw_lock(_w, _b, _b->level);				\
 		if (_b == (c)->root &&					\
-		    _w == insert_lock(op, _b))				\
+		    _w == insert_lock(op, _b)) {			\
+			_b->parent = NULL;				\
 			_r = bch_btree_ ## fn(_b, op, ##__VA_ARGS__);	\
+		}							\
 		rw_unlock(_w, _b);					\
 		bch_cannibalize_unlock(c, &(op)->cl);			\
 	} while (_r == -EINTR);						\
-- 
cgit 


From 26c949f8062cb9221a28b2228104f1cc5b265097 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Tue, 10 Sep 2013 18:41:15 -0700
Subject: bcache: Add btree_insert_node()

The flow of control in the old btree insertion code was rather -
backwards; we'd recurse down the btree (in btree_insert_recurse()), and
then if we needed to split the keys to be inserted into the parent node
would be effectively returned up to btree_insert_recurse(), which would
notice there was more work to do and finish the insertion.

The main problem with this was that the full logic for btree insertion
could only be used by calling btree_insert_recurse; if you'd gotten to a
btree leaf some other way and had a key to insert, if it turned out that
node needed to be split you were SOL.

This inverts the flow of control so btree_insert_node() does _full_
btree insertion, including splitting - and takes a (leaf) btree node to
insert into as a parameter.

This means we can now _correctly_ handle cache misses - for cache
misses, we need to insert a fake "check" key into the btree when we
discover we have a cache miss - while we still have the btree locked.
Previously, if the btree node was full inserting a cache miss would just
fail.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bset.c  |  12 ++++
 drivers/md/bcache/bset.h  |   1 +
 drivers/md/bcache/btree.c | 158 +++++++++++++++++++++++++++-------------------
 3 files changed, 105 insertions(+), 66 deletions(-)

diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c
index 22d1ae72c282..830eede86d56 100644
--- a/drivers/md/bcache/bset.c
+++ b/drivers/md/bcache/bset.c
@@ -73,6 +73,18 @@ struct bkey *bch_keylist_pop(struct keylist *l)
 	return l->top = k;
 }
 
+void bch_keylist_pop_front(struct keylist *l)
+{
+	struct bkey *next = bkey_next(l->bottom);
+	size_t bytes = ((void *) l->top) - ((void *) next);
+
+	memmove(l->bottom,
+		next,
+		bytes);
+
+	l->top = ((void *) l->bottom) + bytes;
+}
+
 /* Pointer validation */
 
 bool __bch_ptr_invalid(struct cache_set *c, int level, const struct bkey *k)
diff --git a/drivers/md/bcache/bset.h b/drivers/md/bcache/bset.h
index ae115a253d73..a3627d0cd88b 100644
--- a/drivers/md/bcache/bset.h
+++ b/drivers/md/bcache/bset.h
@@ -267,6 +267,7 @@ static inline void bch_keylist_free(struct keylist *l)
 
 void bch_keylist_copy(struct keylist *, struct keylist *);
 struct bkey *bch_keylist_pop(struct keylist *);
+void bch_keylist_pop_front(struct keylist *);
 int bch_keylist_realloc(struct keylist *, int, struct cache_set *);
 
 void bch_bkey_copy_single_ptr(struct bkey *, const struct bkey *,
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 87299baa8a1b..c2722e075f18 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -1849,15 +1849,43 @@ merged:
 	return true;
 }
 
-static bool bch_btree_insert_keys(struct btree *b, struct btree_op *op)
+static bool bch_btree_insert_keys(struct btree *b, struct btree_op *op,
+				  struct keylist *insert_keys)
 {
 	bool ret = false;
-	struct bkey *k;
 	unsigned oldsize = bch_count_data(b);
 
-	while ((k = bch_keylist_pop(&op->keys))) {
-		bkey_put(b->c, k, b->level);
-		ret |= btree_insert_key(b, op, k);
+	BUG_ON(!insert_lock(op, b));
+
+	while (!bch_keylist_empty(insert_keys)) {
+		struct bkey *k = insert_keys->bottom;
+
+		if (b->level ||
+		    bkey_cmp(k, &b->key) <= 0) {
+			bkey_put(b->c, k, b->level);
+
+			ret |= btree_insert_key(b, op, k);
+			bch_keylist_pop_front(insert_keys);
+		} else if (bkey_cmp(&START_KEY(k), &b->key) < 0) {
+#if 0
+			if (op->type == BTREE_REPLACE) {
+				bkey_put(b->c, k, b->level);
+				bch_keylist_pop_front(insert_keys);
+				op->insert_collision = true;
+				break;
+			}
+#endif
+			BKEY_PADDED(key) temp;
+			bkey_copy(&temp.key, insert_keys->bottom);
+
+			bch_cut_back(&b->key, &temp.key);
+			bch_cut_front(&b->key, insert_keys->bottom);
+
+			ret |= btree_insert_key(b, op, &temp.key);
+			break;
+		} else {
+			break;
+		}
 	}
 
 	BUG_ON(bch_count_data(b) < oldsize);
@@ -1897,7 +1925,9 @@ out:
 	return ret;
 }
 
-static int btree_split(struct btree *b, struct btree_op *op)
+static int btree_split(struct btree *b, struct btree_op *op,
+		       struct keylist *insert_keys,
+		       struct keylist *parent_keys)
 {
 	bool split;
 	struct btree *n1, *n2 = NULL, *n3 = NULL;
@@ -1927,7 +1957,7 @@ static int btree_split(struct btree *b, struct btree_op *op)
 				goto err_free2;
 		}
 
-		bch_btree_insert_keys(n1, op);
+		bch_btree_insert_keys(n1, op, insert_keys);
 
 		/*
 		 * Has to be a linear search because we don't have an auxiliary
@@ -1949,23 +1979,23 @@ static int btree_split(struct btree *b, struct btree_op *op)
 
 		bkey_copy_key(&n2->key, &b->key);
 
-		bch_keylist_add(&op->keys, &n2->key);
+		bch_keylist_add(parent_keys, &n2->key);
 		bch_btree_node_write(n2, &op->cl);
 		rw_unlock(true, n2);
 	} else {
 		trace_bcache_btree_node_compact(b, n1->sets[0].data->keys);
 
-		bch_btree_insert_keys(n1, op);
+		bch_btree_insert_keys(n1, op, insert_keys);
 	}
 
-	bch_keylist_add(&op->keys, &n1->key);
+	bch_keylist_add(parent_keys, &n1->key);
 	bch_btree_node_write(n1, &op->cl);
 
 	if (n3) {
 		/* Depth increases, make a new root */
 
 		bkey_copy_key(&n3->key, &MAX_KEY);
-		bch_btree_insert_keys(n3, op);
+		bch_btree_insert_keys(n3, op, parent_keys);
 		bch_btree_node_write(n3, &op->cl);
 
 		closure_sync(&op->cl);
@@ -1974,22 +2004,22 @@ static int btree_split(struct btree *b, struct btree_op *op)
 	} else if (!b->parent) {
 		/* Root filled up but didn't need to be split */
 
-		op->keys.top = op->keys.bottom;
+		parent_keys->top = parent_keys->bottom;
 		closure_sync(&op->cl);
 		bch_btree_set_root(n1);
 	} else {
 		unsigned i;
 
-		bkey_copy(op->keys.top, &b->key);
-		bkey_copy_key(op->keys.top, &ZERO_KEY);
+		bkey_copy(parent_keys->top, &b->key);
+		bkey_copy_key(parent_keys->top, &ZERO_KEY);
 
 		for (i = 0; i < KEY_PTRS(&b->key); i++) {
 			uint8_t g = PTR_BUCKET(b->c, &b->key, i)->gen + 1;
 
-			SET_PTR_GEN(op->keys.top, i, g);
+			SET_PTR_GEN(parent_keys->top, i, g);
 		}
 
-		bch_keylist_push(&op->keys);
+		bch_keylist_push(parent_keys);
 		closure_sync(&op->cl);
 		atomic_inc(&b->c->prio_blocked);
 	}
@@ -2018,69 +2048,65 @@ err:
 	return -ENOMEM;
 }
 
-static int bch_btree_insert_recurse(struct btree *b, struct btree_op *op,
-				    struct keylist *stack_keys)
+static int bch_btree_insert_node(struct btree *b, struct btree_op *op,
+				 struct keylist *insert_keys)
 {
-	if (b->level) {
-		int ret;
-		struct bkey *insert = op->keys.bottom;
-		struct bkey *k = bch_next_recurse_key(b, &START_KEY(insert));
+	int ret = 0;
+	struct keylist split_keys;
 
-		if (!k) {
-			btree_bug(b, "no key to recurse on at level %i/%i",
-				  b->level, b->c->root->level);
+	bch_keylist_init(&split_keys);
 
-			op->keys.top = op->keys.bottom;
-			return -EIO;
-		}
+	BUG_ON(b->level);
 
-		if (bkey_cmp(insert, k) > 0) {
-			unsigned i;
+	do {
+		if (should_split(b)) {
+			if (current->bio_list) {
+				op->lock = b->c->root->level + 1;
+				ret = -EAGAIN;
+			} else if (op->lock <= b->c->root->level) {
+				op->lock = b->c->root->level + 1;
+				ret = -EINTR;
+			} else {
+				struct btree *parent = b->parent;
 
-			if (op->type == BTREE_REPLACE) {
-				__bkey_put(b->c, insert);
-				op->keys.top = op->keys.bottom;
-				op->insert_collision = true;
-				return 0;
+				ret = btree_split(b, op, insert_keys,
+						  &split_keys);
+				insert_keys = &split_keys;
+				b = parent;
 			}
+		} else {
+			BUG_ON(write_block(b) != b->sets[b->nsets].data);
 
-			for (i = 0; i < KEY_PTRS(insert); i++)
-				atomic_inc(&PTR_BUCKET(b->c, insert, i)->pin);
-
-			bkey_copy(stack_keys->top, insert);
-
-			bch_cut_back(k, insert);
-			bch_cut_front(k, stack_keys->top);
-
-			bch_keylist_push(stack_keys);
+			if (bch_btree_insert_keys(b, op, insert_keys)) {
+				if (!b->level)
+					bch_btree_leaf_dirty(b, op);
+				else
+					bch_btree_node_write(b, &op->cl);
+			}
 		}
+	} while (!bch_keylist_empty(&split_keys));
 
-		ret = btree(insert_recurse, k, b, op, stack_keys);
-		if (ret)
-			return ret;
-	}
+	return ret;
+}
 
-	if (!bch_keylist_empty(&op->keys)) {
-		if (should_split(b)) {
-			if (op->lock <= b->c->root->level) {
-				BUG_ON(b->level);
-				op->lock = b->c->root->level + 1;
-				return -EINTR;
-			}
-			return btree_split(b, op);
-		}
+static int bch_btree_insert_recurse(struct btree *b, struct btree_op *op)
+{
+	if (b->level) {
+		struct bkey *insert = op->keys.bottom;
+		struct bkey *k = bch_next_recurse_key(b, &START_KEY(insert));
 
-		BUG_ON(write_block(b) != b->sets[b->nsets].data);
+		if (!k) {
+			btree_bug(b, "no key to recurse on at level %i/%i",
+				  b->level, b->c->root->level);
 
-		if (bch_btree_insert_keys(b, op)) {
-			if (!b->level)
-				bch_btree_leaf_dirty(b, op);
-			else
-				bch_btree_node_write(b, &op->cl);
+			op->keys.top = op->keys.bottom;
+			return -EIO;
 		}
-	}
 
-	return 0;
+		return btree(insert_recurse, k, b, op);
+	} else {
+		return bch_btree_insert_node(b, op, &op->keys);
+	}
 }
 
 int bch_btree_insert(struct btree_op *op, struct cache_set *c)
@@ -2106,7 +2132,7 @@ int bch_btree_insert(struct btree_op *op, struct cache_set *c)
 			op->lock = 0;
 		}
 
-		ret = btree_root(insert_recurse, c, op, &stack_keys);
+		ret = btree_root(insert_recurse, c, op);
 
 		if (ret == -EAGAIN) {
 			ret = 0;
-- 
cgit 


From 403b6cdeb1a38d896ffcb1f99ddcfd4e343b5d69 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 17:22:44 -0700
Subject: bcache: Insert multiple keys at a time

We'll often end up with a list of adjacent keys to insert -
because bch_data_insert() may have to fragment the data it writes.

Originally, to simplify things and avoid having to deal with corner
cases bch_btree_insert() would pass keys from this list one at a time to
btree_insert_recurse() - mainly because the list of keys might span leaf
nodes, so it was easier this way.

With the btree_insert_node() refactoring, it's now a lot easier to just
pass down the whole list and have btree_insert_recurse() iterate over
leaf nodes until it's done.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/btree.c | 33 ++++++++++++++++-----------------
 1 file changed, 16 insertions(+), 17 deletions(-)

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index c2722e075f18..60d06465d772 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -1858,10 +1858,14 @@ static bool bch_btree_insert_keys(struct btree *b, struct btree_op *op,
 	BUG_ON(!insert_lock(op, b));
 
 	while (!bch_keylist_empty(insert_keys)) {
+		struct bset *i = write_block(b);
 		struct bkey *k = insert_keys->bottom;
 
-		if (b->level ||
-		    bkey_cmp(k, &b->key) <= 0) {
+		if (b->written + __set_blocks(i, i->keys + bkey_u64s(k), b->c)
+		    > btree_blocks(b))
+			break;
+
+		if (bkey_cmp(k, &b->key) <= 0) {
 			bkey_put(b->c, k, b->level);
 
 			ret |= btree_insert_key(b, op, k);
@@ -1888,6 +1892,8 @@ static bool bch_btree_insert_keys(struct btree *b, struct btree_op *op,
 		}
 	}
 
+	BUG_ON(!bch_keylist_empty(insert_keys) && b->level);
+
 	BUG_ON(bch_count_data(b) < oldsize);
 	return ret;
 }
@@ -2073,6 +2079,8 @@ static int bch_btree_insert_node(struct btree *b, struct btree_op *op,
 						  &split_keys);
 				insert_keys = &split_keys;
 				b = parent;
+				if (!ret)
+					ret = -EINTR;
 			}
 		} else {
 			BUG_ON(write_block(b) != b->sets[b->nsets].data);
@@ -2091,6 +2099,9 @@ static int bch_btree_insert_node(struct btree *b, struct btree_op *op,
 
 static int bch_btree_insert_recurse(struct btree *b, struct btree_op *op)
 {
+	if (bch_keylist_empty(&op->keys))
+		return 0;
+
 	if (b->level) {
 		struct bkey *insert = op->keys.bottom;
 		struct bkey *k = bch_next_recurse_key(b, &START_KEY(insert));
@@ -2112,7 +2123,6 @@ static int bch_btree_insert_recurse(struct btree *b, struct btree_op *op)
 int bch_btree_insert(struct btree_op *op, struct cache_set *c)
 {
 	int ret = 0;
-	struct keylist stack_keys;
 
 	/*
 	 * Don't want to block with the btree locked unless we have to,
@@ -2121,17 +2131,9 @@ int bch_btree_insert(struct btree_op *op, struct cache_set *c)
 	clear_closure_blocking(&op->cl);
 
 	BUG_ON(bch_keylist_empty(&op->keys));
-	bch_keylist_copy(&stack_keys, &op->keys);
-	bch_keylist_init(&op->keys);
-
-	while (!bch_keylist_empty(&stack_keys) ||
-	       !bch_keylist_empty(&op->keys)) {
-		if (bch_keylist_empty(&op->keys)) {
-			bch_keylist_add(&op->keys,
-					bch_keylist_pop(&stack_keys));
-			op->lock = 0;
-		}
 
+	while (!bch_keylist_empty(&op->keys)) {
+		op->lock = 0;
 		ret = btree_root(insert_recurse, c, op);
 
 		if (ret == -EAGAIN) {
@@ -2143,14 +2145,11 @@ int bch_btree_insert(struct btree_op *op, struct cache_set *c)
 			pr_err("error %i trying to insert key for %s",
 			       ret, op_type(op));
 
-			while ((k = bch_keylist_pop(&stack_keys) ?:
-				    bch_keylist_pop(&op->keys)))
+			while ((k = bch_keylist_pop(&op->keys)))
 				bkey_put(c, k, 0);
 		}
 	}
 
-	bch_keylist_free(&stack_keys);
-
 	if (op->journal)
 		atomic_dec_bug(op->journal);
 	op->journal = NULL;
-- 
cgit 


From e7c590eb63509c5d5f48a390d23aa25f4417ac96 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Tue, 10 Sep 2013 18:39:16 -0700
Subject: bcache: Convert btree_insert_check_key() to btree_insert_node()

This was the main point of all this refactoring - now,
btree_insert_check_key() won't fail just because the leaf node happened
to be full.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bcache.h  |  8 -----
 drivers/md/bcache/btree.c   | 82 ++++++++++++++++++++++++++-------------------
 drivers/md/bcache/btree.h   |  6 ++--
 drivers/md/bcache/request.c | 55 +++++++++++++++---------------
 4 files changed, 79 insertions(+), 72 deletions(-)

diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index 6e836f22f276..10ce0c825fce 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -1091,14 +1091,6 @@ do {									\
 	for (b = (ca)->buckets + (ca)->sb.first_bucket;			\
 	     b < (ca)->buckets + (ca)->sb.nbuckets; b++)
 
-static inline void __bkey_put(struct cache_set *c, struct bkey *k)
-{
-	unsigned i;
-
-	for (i = 0; i < KEY_PTRS(k); i++)
-		atomic_dec_bug(&PTR_BUCKET(c, k, i)->pin);
-}
-
 static inline void cached_dev_put(struct cached_dev *dc)
 {
 	if (atomic_dec_and_test(&dc->count))
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 60d06465d772..08a85327431c 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -118,6 +118,15 @@ void bch_btree_op_init_stack(struct btree_op *op)
 
 /* Btree key manipulation */
 
+void __bkey_put(struct cache_set *c, struct bkey *k)
+{
+	unsigned i;
+
+	for (i = 0; i < KEY_PTRS(k); i++)
+		if (ptr_available(c, k, i))
+			atomic_dec_bug(&PTR_BUCKET(c, k, i)->pin);
+}
+
 static void bkey_put(struct cache_set *c, struct bkey *k, int level)
 {
 	if ((level && KEY_OFFSET(k)) || !level)
@@ -1855,8 +1864,6 @@ static bool bch_btree_insert_keys(struct btree *b, struct btree_op *op,
 	bool ret = false;
 	unsigned oldsize = bch_count_data(b);
 
-	BUG_ON(!insert_lock(op, b));
-
 	while (!bch_keylist_empty(insert_keys)) {
 		struct bset *i = write_block(b);
 		struct bkey *k = insert_keys->bottom;
@@ -1898,39 +1905,6 @@ static bool bch_btree_insert_keys(struct btree *b, struct btree_op *op,
 	return ret;
 }
 
-bool bch_btree_insert_check_key(struct btree *b, struct btree_op *op,
-				   struct bio *bio)
-{
-	bool ret = false;
-	uint64_t btree_ptr = b->key.ptr[0];
-	unsigned long seq = b->seq;
-	BKEY_PADDED(k) tmp;
-
-	rw_unlock(false, b);
-	rw_lock(true, b, b->level);
-
-	if (b->key.ptr[0] != btree_ptr ||
-	    b->seq != seq + 1 ||
-	    should_split(b))
-		goto out;
-
-	op->replace = KEY(op->inode, bio_end_sector(bio), bio_sectors(bio));
-
-	SET_KEY_PTRS(&op->replace, 1);
-	get_random_bytes(&op->replace.ptr[0], sizeof(uint64_t));
-
-	SET_PTR_DEV(&op->replace, 0, PTR_CHECK_DEV);
-
-	bkey_copy(&tmp.k, &op->replace);
-
-	BUG_ON(op->type != BTREE_INSERT);
-	BUG_ON(!btree_insert_key(b, op, &tmp.k));
-	ret = true;
-out:
-	downgrade_write(&b->lock);
-	return ret;
-}
-
 static int btree_split(struct btree *b, struct btree_op *op,
 		       struct keylist *insert_keys,
 		       struct keylist *parent_keys)
@@ -2097,6 +2071,44 @@ static int bch_btree_insert_node(struct btree *b, struct btree_op *op,
 	return ret;
 }
 
+int bch_btree_insert_check_key(struct btree *b, struct btree_op *op,
+			       struct bkey *check_key)
+{
+	int ret = -EINTR;
+	uint64_t btree_ptr = b->key.ptr[0];
+	unsigned long seq = b->seq;
+	struct keylist insert;
+	bool upgrade = op->lock == -1;
+
+	bch_keylist_init(&insert);
+
+	if (upgrade) {
+		rw_unlock(false, b);
+		rw_lock(true, b, b->level);
+
+		if (b->key.ptr[0] != btree_ptr ||
+		    b->seq != seq + 1)
+			goto out;
+	}
+
+	SET_KEY_PTRS(check_key, 1);
+	get_random_bytes(&check_key->ptr[0], sizeof(uint64_t));
+
+	SET_PTR_DEV(check_key, 0, PTR_CHECK_DEV);
+
+	bch_keylist_add(&insert, check_key);
+
+	BUG_ON(op->type != BTREE_INSERT);
+
+	ret = bch_btree_insert_node(b, op, &insert);
+
+	BUG_ON(!ret && !bch_keylist_empty(&insert));
+out:
+	if (upgrade)
+		downgrade_write(&b->lock);
+	return ret;
+}
+
 static int bch_btree_insert_recurse(struct btree *b, struct btree_op *op)
 {
 	if (bch_keylist_empty(&op->keys))
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index 6d2fb7550706..73bd62105e39 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -216,6 +216,8 @@ static inline struct bkey *bch_btree_iter_init(struct btree *b,
 	return __bch_btree_iter_init(b, iter, search, b->sets);
 }
 
+void __bkey_put(struct cache_set *c, struct bkey *k);
+
 /* Looping macros */
 
 #define for_each_cached_btree(b, c, iter)				\
@@ -380,8 +382,8 @@ struct btree *bch_btree_node_alloc(struct cache_set *, int, struct closure *);
 struct btree *bch_btree_node_get(struct cache_set *, struct bkey *,
 				int, struct btree_op *);
 
-bool bch_btree_insert_check_key(struct btree *, struct btree_op *,
-				   struct bio *);
+int bch_btree_insert_check_key(struct btree *, struct btree_op *,
+			       struct bkey *);
 int bch_btree_insert(struct btree_op *, struct cache_set *);
 
 int bch_btree_search_recurse(struct btree *, struct btree_op *);
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 2a7f0dd6abab..9ed334ca484d 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -869,35 +869,39 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
 				 struct bio *bio, unsigned sectors)
 {
 	int ret = 0;
-	unsigned reada;
+	unsigned reada = 0;
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 	struct bio *miss;
 
-	miss = bch_bio_split(bio, sectors, GFP_NOIO, s->d->bio_split);
-	if (miss == bio)
-		s->op.lookup_done = true;
+	if (s->cache_miss || s->op.skip) {
+		miss = bch_bio_split(bio, sectors, GFP_NOIO, s->d->bio_split);
+		if (miss == bio)
+			s->op.lookup_done = true;
+		goto out_submit;
+	}
 
-	miss->bi_end_io		= request_endio;
-	miss->bi_private	= &s->cl;
+	if (!(bio->bi_rw & REQ_RAHEAD) &&
+	    !(bio->bi_rw & REQ_META) &&
+	    s->op.c->gc_stats.in_use < CUTOFF_CACHE_READA)
+		reada = min_t(sector_t, dc->readahead >> 9,
+			      bdev_sectors(bio->bi_bdev) - bio_end_sector(bio));
 
-	if (s->cache_miss || s->op.skip)
-		goto out_submit;
+	s->cache_bio_sectors = min(sectors, bio_sectors(bio) + reada);
 
-	if (miss != bio ||
-	    (bio->bi_rw & REQ_RAHEAD) ||
-	    (bio->bi_rw & REQ_META) ||
-	    s->op.c->gc_stats.in_use >= CUTOFF_CACHE_READA)
-		reada = 0;
-	else {
-		reada = min(dc->readahead >> 9,
-			    sectors - bio_sectors(miss));
-
-		if (bio_end_sector(miss) + reada > bdev_sectors(miss->bi_bdev))
-			reada = bdev_sectors(miss->bi_bdev) -
-				bio_end_sector(miss);
-	}
+	s->op.replace = KEY(s->op.inode, bio->bi_sector +
+			    s->cache_bio_sectors, s->cache_bio_sectors);
+
+	ret = bch_btree_insert_check_key(b, &s->op, &s->op.replace);
+	if (ret)
+		return ret;
+
+	miss = bch_bio_split(bio, sectors, GFP_NOIO, s->d->bio_split);
+	if (miss == bio)
+		s->op.lookup_done = true;
+	else
+		/* btree_search_recurse()'s btree iterator is no good anymore */
+		ret = -EINTR;
 
-	s->cache_bio_sectors = bio_sectors(miss) + reada;
 	s->op.cache_bio = bio_alloc_bioset(GFP_NOWAIT,
 			DIV_ROUND_UP(s->cache_bio_sectors, PAGE_SECTORS),
 			dc->disk.bio_split);
@@ -912,11 +916,6 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
 	s->op.cache_bio->bi_end_io	= request_endio;
 	s->op.cache_bio->bi_private	= &s->cl;
 
-	/* btree_search_recurse()'s btree iterator is no good anymore */
-	ret = -EINTR;
-	if (!bch_btree_insert_check_key(b, &s->op, s->op.cache_bio))
-		goto out_put;
-
 	bch_bio_map(s->op.cache_bio, NULL);
 	if (bio_alloc_pages(s->op.cache_bio, __GFP_NOWARN|GFP_NOIO))
 		goto out_put;
@@ -931,6 +930,8 @@ out_put:
 	bio_put(s->op.cache_bio);
 	s->op.cache_bio = NULL;
 out_submit:
+	miss->bi_end_io		= request_endio;
+	miss->bi_private	= &s->cl;
 	closure_bio_submit(miss, &s->cl, s->d);
 	return ret;
 }
-- 
cgit 


From 4f3d40147b8d0ce7055e241e1d263e0aa2b2b46d Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Tue, 10 Sep 2013 18:46:36 -0700
Subject: bcache: Add explicit keylist arg to btree_insert()

Some refactoring - better to explicitly pass stuff around instead of
having it all in the "big bag of state", struct btree_op. Going to prune
struct btree_op quite a bit over time.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/btree.c     | 26 ++++++++++++++------------
 drivers/md/bcache/btree.h     |  2 +-
 drivers/md/bcache/journal.c   |  2 +-
 drivers/md/bcache/request.c   |  2 +-
 drivers/md/bcache/writeback.c |  2 +-
 5 files changed, 18 insertions(+), 16 deletions(-)

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 08a85327431c..fc3cae5c94b2 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -2109,30 +2109,32 @@ out:
 	return ret;
 }
 
-static int bch_btree_insert_recurse(struct btree *b, struct btree_op *op)
+static int bch_btree_insert_recurse(struct btree *b, struct btree_op *op,
+				    struct keylist *keys)
 {
-	if (bch_keylist_empty(&op->keys))
+	if (bch_keylist_empty(keys))
 		return 0;
 
 	if (b->level) {
-		struct bkey *insert = op->keys.bottom;
-		struct bkey *k = bch_next_recurse_key(b, &START_KEY(insert));
+		struct bkey *k;
 
+		k = bch_next_recurse_key(b, &START_KEY(keys->bottom));
 		if (!k) {
 			btree_bug(b, "no key to recurse on at level %i/%i",
 				  b->level, b->c->root->level);
 
-			op->keys.top = op->keys.bottom;
+			keys->top = keys->bottom;
 			return -EIO;
 		}
 
-		return btree(insert_recurse, k, b, op);
+		return btree(insert_recurse, k, b, op, keys);
 	} else {
-		return bch_btree_insert_node(b, op, &op->keys);
+		return bch_btree_insert_node(b, op, keys);
 	}
 }
 
-int bch_btree_insert(struct btree_op *op, struct cache_set *c)
+int bch_btree_insert(struct btree_op *op, struct cache_set *c,
+		     struct keylist *keys)
 {
 	int ret = 0;
 
@@ -2142,11 +2144,11 @@ int bch_btree_insert(struct btree_op *op, struct cache_set *c)
 	 */
 	clear_closure_blocking(&op->cl);
 
-	BUG_ON(bch_keylist_empty(&op->keys));
+	BUG_ON(bch_keylist_empty(keys));
 
-	while (!bch_keylist_empty(&op->keys)) {
+	while (!bch_keylist_empty(keys)) {
 		op->lock = 0;
-		ret = btree_root(insert_recurse, c, op);
+		ret = btree_root(insert_recurse, c, op, keys);
 
 		if (ret == -EAGAIN) {
 			ret = 0;
@@ -2157,7 +2159,7 @@ int bch_btree_insert(struct btree_op *op, struct cache_set *c)
 			pr_err("error %i trying to insert key for %s",
 			       ret, op_type(op));
 
-			while ((k = bch_keylist_pop(&op->keys)))
+			while ((k = bch_keylist_pop(keys)))
 				bkey_put(c, k, 0);
 		}
 	}
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index 73bd62105e39..967aacd20625 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -384,7 +384,7 @@ struct btree *bch_btree_node_get(struct cache_set *, struct bkey *,
 
 int bch_btree_insert_check_key(struct btree *, struct btree_op *,
 			       struct bkey *);
-int bch_btree_insert(struct btree_op *, struct cache_set *);
+int bch_btree_insert(struct btree_op *, struct cache_set *, struct keylist *);
 
 int bch_btree_search_recurse(struct btree *, struct btree_op *);
 
diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index 9e8775872dba..5abe5d5fc183 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -320,7 +320,7 @@ int bch_journal_replay(struct cache_set *s, struct list_head *list,
 			op->journal = i->pin;
 			atomic_inc(op->journal);
 
-			ret = bch_btree_insert(op, s);
+			ret = bch_btree_insert(op, s, &op->keys);
 			if (ret)
 				goto err;
 
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 9ed334ca484d..7fd84ce9e835 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -607,7 +607,7 @@ void bch_btree_insert_async(struct closure *cl)
 	struct btree_op *op = container_of(cl, struct btree_op, cl);
 	struct search *s = container_of(op, struct search, op);
 
-	if (bch_btree_insert(op, op->c)) {
+	if (bch_btree_insert(op, op->c, &op->keys)) {
 		s->error		= -ENOMEM;
 		op->insert_data_done	= true;
 	}
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index b842fbfbf1db..8ffc8ec7231d 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -311,7 +311,7 @@ static void write_dirty_finish(struct closure *cl)
 		for (i = 0; i < KEY_PTRS(&w->key); i++)
 			atomic_inc(&PTR_BUCKET(dc->disk.c, &w->key, i)->pin);
 
-		bch_btree_insert(&op, dc->disk.c);
+		bch_btree_insert(&op, dc->disk.c, &op.keys);
 		closure_sync(&op.cl);
 
 		if (op.insert_collision)
-- 
cgit 


From c2f95ae2ebbe1ab61b1d4437f5923fdf720d4d4d Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 17:24:25 -0700
Subject: bcache: Clean up keylist code

More random refactoring.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bset.c    | 44 +++++++++++++++-----------------------------
 drivers/md/bcache/bset.h    | 35 ++++++++++++++++++++++++++---------
 drivers/md/bcache/btree.c   | 12 ++++++------
 drivers/md/bcache/journal.c | 14 ++++++++------
 drivers/md/bcache/request.c |  4 ++--
 5 files changed, 57 insertions(+), 52 deletions(-)

diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c
index 830eede86d56..d0512e451dda 100644
--- a/drivers/md/bcache/bset.c
+++ b/drivers/md/bcache/bset.c
@@ -14,22 +14,12 @@
 
 /* Keylists */
 
-void bch_keylist_copy(struct keylist *dest, struct keylist *src)
-{
-	*dest = *src;
-
-	if (src->list == src->d) {
-		size_t n = (uint64_t *) src->top - src->d;
-		dest->top = (struct bkey *) &dest->d[n];
-		dest->list = dest->d;
-	}
-}
-
 int bch_keylist_realloc(struct keylist *l, int nptrs, struct cache_set *c)
 {
-	unsigned oldsize = (uint64_t *) l->top - l->list;
-	unsigned newsize = oldsize + 2 + nptrs;
-	uint64_t *new;
+	size_t oldsize = bch_keylist_nkeys(l);
+	size_t newsize = oldsize + 2 + nptrs;
+	uint64_t *old_keys = l->keys_p == l->inline_keys ? NULL : l->keys_p;
+	uint64_t *new_keys;
 
 	/* The journalling code doesn't handle the case where the keys to insert
 	 * is bigger than an empty write: If we just return -ENOMEM here,
@@ -45,24 +35,23 @@ int bch_keylist_realloc(struct keylist *l, int nptrs, struct cache_set *c)
 	    roundup_pow_of_two(oldsize) == newsize)
 		return 0;
 
-	new = krealloc(l->list == l->d ? NULL : l->list,
-		       sizeof(uint64_t) * newsize, GFP_NOIO);
+	new_keys = krealloc(old_keys, sizeof(uint64_t) * newsize, GFP_NOIO);
 
-	if (!new)
+	if (!new_keys)
 		return -ENOMEM;
 
-	if (l->list == l->d)
-		memcpy(new, l->list, sizeof(uint64_t) * KEYLIST_INLINE);
+	if (!old_keys)
+		memcpy(new_keys, l->inline_keys, sizeof(uint64_t) * oldsize);
 
-	l->list = new;
-	l->top = (struct bkey *) (&l->list[oldsize]);
+	l->keys_p = new_keys;
+	l->top_p = new_keys + oldsize;
 
 	return 0;
 }
 
 struct bkey *bch_keylist_pop(struct keylist *l)
 {
-	struct bkey *k = l->bottom;
+	struct bkey *k = l->keys;
 
 	if (k == l->top)
 		return NULL;
@@ -75,14 +64,11 @@ struct bkey *bch_keylist_pop(struct keylist *l)
 
 void bch_keylist_pop_front(struct keylist *l)
 {
-	struct bkey *next = bkey_next(l->bottom);
-	size_t bytes = ((void *) l->top) - ((void *) next);
-
-	memmove(l->bottom,
-		next,
-		bytes);
+	l->top_p -= bkey_u64s(l->keys);
 
-	l->top = ((void *) l->bottom) + bytes;
+	memmove(l->keys,
+		bkey_next(l->keys),
+		bch_keylist_bytes(l));
 }
 
 /* Pointer validation */
diff --git a/drivers/md/bcache/bset.h b/drivers/md/bcache/bset.h
index a3627d0cd88b..8a9305685b7e 100644
--- a/drivers/md/bcache/bset.h
+++ b/drivers/md/bcache/bset.h
@@ -227,20 +227,23 @@ static inline struct bkey *bkey_next(const struct bkey *k)
 /* Keylists */
 
 struct keylist {
-	struct bkey		*top;
 	union {
-		uint64_t		*list;
-		struct bkey		*bottom;
+		struct bkey		*keys;
+		uint64_t		*keys_p;
+	};
+	union {
+		struct bkey		*top;
+		uint64_t		*top_p;
 	};
 
 	/* Enough room for btree_split's keys without realloc */
 #define KEYLIST_INLINE		16
-	uint64_t		d[KEYLIST_INLINE];
+	uint64_t		inline_keys[KEYLIST_INLINE];
 };
 
 static inline void bch_keylist_init(struct keylist *l)
 {
-	l->top = (void *) (l->list = l->d);
+	l->top_p = l->keys_p = l->inline_keys;
 }
 
 static inline void bch_keylist_push(struct keylist *l)
@@ -256,16 +259,30 @@ static inline void bch_keylist_add(struct keylist *l, struct bkey *k)
 
 static inline bool bch_keylist_empty(struct keylist *l)
 {
-	return l->top == (void *) l->list;
+	return l->top == l->keys;
+}
+
+static inline void bch_keylist_reset(struct keylist *l)
+{
+	l->top = l->keys;
 }
 
 static inline void bch_keylist_free(struct keylist *l)
 {
-	if (l->list != l->d)
-		kfree(l->list);
+	if (l->keys_p != l->inline_keys)
+		kfree(l->keys_p);
+}
+
+static inline size_t bch_keylist_nkeys(struct keylist *l)
+{
+	return l->top_p - l->keys_p;
+}
+
+static inline size_t bch_keylist_bytes(struct keylist *l)
+{
+	return bch_keylist_nkeys(l) * sizeof(uint64_t);
 }
 
-void bch_keylist_copy(struct keylist *, struct keylist *);
 struct bkey *bch_keylist_pop(struct keylist *);
 void bch_keylist_pop_front(struct keylist *);
 int bch_keylist_realloc(struct keylist *, int, struct cache_set *);
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index fc3cae5c94b2..f960607f1f25 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -1866,7 +1866,7 @@ static bool bch_btree_insert_keys(struct btree *b, struct btree_op *op,
 
 	while (!bch_keylist_empty(insert_keys)) {
 		struct bset *i = write_block(b);
-		struct bkey *k = insert_keys->bottom;
+		struct bkey *k = insert_keys->keys;
 
 		if (b->written + __set_blocks(i, i->keys + bkey_u64s(k), b->c)
 		    > btree_blocks(b))
@@ -1887,10 +1887,10 @@ static bool bch_btree_insert_keys(struct btree *b, struct btree_op *op,
 			}
 #endif
 			BKEY_PADDED(key) temp;
-			bkey_copy(&temp.key, insert_keys->bottom);
+			bkey_copy(&temp.key, insert_keys->keys);
 
 			bch_cut_back(&b->key, &temp.key);
-			bch_cut_front(&b->key, insert_keys->bottom);
+			bch_cut_front(&b->key, insert_keys->keys);
 
 			ret |= btree_insert_key(b, op, &temp.key);
 			break;
@@ -1984,7 +1984,7 @@ static int btree_split(struct btree *b, struct btree_op *op,
 	} else if (!b->parent) {
 		/* Root filled up but didn't need to be split */
 
-		parent_keys->top = parent_keys->bottom;
+		bch_keylist_reset(parent_keys);
 		closure_sync(&op->cl);
 		bch_btree_set_root(n1);
 	} else {
@@ -2118,12 +2118,12 @@ static int bch_btree_insert_recurse(struct btree *b, struct btree_op *op,
 	if (b->level) {
 		struct bkey *k;
 
-		k = bch_next_recurse_key(b, &START_KEY(keys->bottom));
+		k = bch_next_recurse_key(b, &START_KEY(keys->keys));
 		if (!k) {
 			btree_bug(b, "no key to recurse on at level %i/%i",
 				  b->level, b->c->root->level);
 
-			keys->top = keys->bottom;
+			bch_keylist_reset(keys);
 			return -EIO;
 		}
 
diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index 5abe5d5fc183..1bdefdb1fa71 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -713,7 +713,7 @@ void bch_journal(struct closure *cl)
 	struct btree_op *op = container_of(cl, struct btree_op, cl);
 	struct cache_set *c = op->c;
 	struct journal_write *w;
-	size_t b, n = ((uint64_t *) op->keys.top) - op->keys.list;
+	size_t sectors, nkeys;
 
 	if (op->type != BTREE_INSERT ||
 	    !CACHE_SYNC(&c->sb))
@@ -741,10 +741,12 @@ void bch_journal(struct closure *cl)
 	}
 
 	w = c->journal.cur;
-	b = __set_blocks(w->data, w->data->keys + n, c);
+	nkeys = w->data->keys + bch_keylist_nkeys(&op->keys);
+	sectors = __set_blocks(w->data, nkeys, c) * c->sb.block_size;
 
-	if (b * c->sb.block_size > PAGE_SECTORS << JSET_BITS ||
-	    b > c->journal.blocks_free) {
+	if (sectors > min_t(size_t,
+			    c->journal.blocks_free * c->sb.block_size,
+			    PAGE_SECTORS << JSET_BITS)) {
 		trace_bcache_journal_entry_full(c);
 
 		/*
@@ -760,8 +762,8 @@ void bch_journal(struct closure *cl)
 		continue_at(cl, bch_journal, bcache_wq);
 	}
 
-	memcpy(end(w->data), op->keys.list, n * sizeof(uint64_t));
-	w->data->keys += n;
+	memcpy(end(w->data), op->keys.keys, bch_keylist_bytes(&op->keys));
+	w->data->keys += bch_keylist_nkeys(&op->keys);
 
 	op->journal = &fifo_back(&c->journal.pin);
 	atomic_inc(op->journal);
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 7fd84ce9e835..a000e918b795 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -438,13 +438,13 @@ static void bch_insert_data_error(struct closure *cl)
 	 * from the keys we'll accomplish just that.
 	 */
 
-	struct bkey *src = op->keys.bottom, *dst = op->keys.bottom;
+	struct bkey *src = op->keys.keys, *dst = op->keys.keys;
 
 	while (src != op->keys.top) {
 		struct bkey *n = bkey_next(src);
 
 		SET_KEY_PTRS(src, 0);
-		bkey_copy(dst, src);
+		memmove(dst, src, bkey_bytes(src));
 
 		dst = bkey_next(dst);
 		src = n;
-- 
cgit 


From 84f0db03ea1e024f2a9e6cfcf7ac0323e4f84d3a Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 17:24:52 -0700
Subject: bcache: Refactor request_write()

Try to improve some of the naming a bit to be more consistent, and also
improve the flow of control in request_write() a bit.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/btree.h   |   2 +-
 drivers/md/bcache/request.c | 368 ++++++++++++++++++++++----------------------
 2 files changed, 183 insertions(+), 187 deletions(-)

diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index 967aacd20625..ea0814b51574 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -260,7 +260,7 @@ struct btree_op {
 	} type:8;
 
 	unsigned		csum:1;
-	unsigned		skip:1;
+	unsigned		bypass:1;
 	unsigned		flush_journal:1;
 
 	unsigned		insert_data_done:1;
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index a000e918b795..dbc2ef6e7a35 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -25,8 +25,6 @@
 
 struct kmem_cache *bch_search_cache;
 
-static void check_should_skip(struct cached_dev *, struct search *);
-
 /* Cgroup interface */
 
 #ifdef CONFIG_CGROUP_BCACHE
@@ -480,7 +478,7 @@ static void bch_insert_data_loop(struct closure *cl)
 	struct search *s = container_of(op, struct search, op);
 	struct bio *bio = op->cache_bio, *n;
 
-	if (op->skip)
+	if (op->bypass)
 		return bio_invalidate(cl);
 
 	if (atomic_sub_return(bio_sectors(bio), &op->c->sectors_to_gc) < 0) {
@@ -557,7 +555,7 @@ err:
 		 * we wait for buckets to be freed up, so just invalidate the
 		 * rest of the write.
 		 */
-		op->skip = true;
+		op->bypass = true;
 		return bio_invalidate(cl);
 	} else {
 		/*
@@ -590,8 +588,8 @@ err:
  * It inserts the data in op->cache_bio; bi_sector is used for the key offset,
  * and op->inode is used for the key inode.
  *
- * If op->skip is true, instead of inserting the data it invalidates the region
- * of the cache represented by op->cache_bio and op->inode.
+ * If op->bypass is true, instead of inserting the data it invalidates the
+ * region of the cache represented by op->cache_bio and op->inode.
  */
 void bch_insert_data(struct closure *cl)
 {
@@ -717,7 +715,6 @@ static struct search *search_alloc(struct bio *bio, struct bcache_device *d)
 	s->orig_bio		= bio;
 	s->write		= (bio->bi_rw & REQ_WRITE) != 0;
 	s->op.flush_journal	= (bio->bi_rw & (REQ_FLUSH|REQ_FUA)) != 0;
-	s->op.skip		= (bio->bi_rw & REQ_DISCARD) != 0;
 	s->recoverable		= 1;
 	s->start_time		= jiffies;
 	do_bio_hook(s);
@@ -757,6 +754,134 @@ static void cached_dev_bio_complete(struct closure *cl)
 	cached_dev_put(dc);
 }
 
+unsigned bch_get_congested(struct cache_set *c)
+{
+	int i;
+	long rand;
+
+	if (!c->congested_read_threshold_us &&
+	    !c->congested_write_threshold_us)
+		return 0;
+
+	i = (local_clock_us() - c->congested_last_us) / 1024;
+	if (i < 0)
+		return 0;
+
+	i += atomic_read(&c->congested);
+	if (i >= 0)
+		return 0;
+
+	i += CONGESTED_MAX;
+
+	if (i > 0)
+		i = fract_exp_two(i, 6);
+
+	rand = get_random_int();
+	i -= bitmap_weight(&rand, BITS_PER_LONG);
+
+	return i > 0 ? i : 1;
+}
+
+static void add_sequential(struct task_struct *t)
+{
+	ewma_add(t->sequential_io_avg,
+		 t->sequential_io, 8, 0);
+
+	t->sequential_io = 0;
+}
+
+static struct hlist_head *iohash(struct cached_dev *dc, uint64_t k)
+{
+	return &dc->io_hash[hash_64(k, RECENT_IO_BITS)];
+}
+
+static bool check_should_bypass(struct cached_dev *dc, struct search *s)
+{
+	struct cache_set *c = s->op.c;
+	struct bio *bio = &s->bio.bio;
+	unsigned mode = cache_mode(dc, bio);
+	unsigned sectors, congested = bch_get_congested(c);
+
+	if (atomic_read(&dc->disk.detaching) ||
+	    c->gc_stats.in_use > CUTOFF_CACHE_ADD ||
+	    (bio->bi_rw & REQ_DISCARD))
+		goto skip;
+
+	if (mode == CACHE_MODE_NONE ||
+	    (mode == CACHE_MODE_WRITEAROUND &&
+	     (bio->bi_rw & REQ_WRITE)))
+		goto skip;
+
+	if (bio->bi_sector & (c->sb.block_size - 1) ||
+	    bio_sectors(bio) & (c->sb.block_size - 1)) {
+		pr_debug("skipping unaligned io");
+		goto skip;
+	}
+
+	if (!congested && !dc->sequential_cutoff)
+		goto rescale;
+
+	if (!congested &&
+	    mode == CACHE_MODE_WRITEBACK &&
+	    (bio->bi_rw & REQ_WRITE) &&
+	    (bio->bi_rw & REQ_SYNC))
+		goto rescale;
+
+	if (dc->sequential_merge) {
+		struct io *i;
+
+		spin_lock(&dc->io_lock);
+
+		hlist_for_each_entry(i, iohash(dc, bio->bi_sector), hash)
+			if (i->last == bio->bi_sector &&
+			    time_before(jiffies, i->jiffies))
+				goto found;
+
+		i = list_first_entry(&dc->io_lru, struct io, lru);
+
+		add_sequential(s->task);
+		i->sequential = 0;
+found:
+		if (i->sequential + bio->bi_size > i->sequential)
+			i->sequential	+= bio->bi_size;
+
+		i->last			 = bio_end_sector(bio);
+		i->jiffies		 = jiffies + msecs_to_jiffies(5000);
+		s->task->sequential_io	 = i->sequential;
+
+		hlist_del(&i->hash);
+		hlist_add_head(&i->hash, iohash(dc, i->last));
+		list_move_tail(&i->lru, &dc->io_lru);
+
+		spin_unlock(&dc->io_lock);
+	} else {
+		s->task->sequential_io = bio->bi_size;
+
+		add_sequential(s->task);
+	}
+
+	sectors = max(s->task->sequential_io,
+		      s->task->sequential_io_avg) >> 9;
+
+	if (dc->sequential_cutoff &&
+	    sectors >= dc->sequential_cutoff >> 9) {
+		trace_bcache_bypass_sequential(s->orig_bio);
+		goto skip;
+	}
+
+	if (congested && sectors >= congested) {
+		trace_bcache_bypass_congested(s->orig_bio);
+		goto skip;
+	}
+
+rescale:
+	bch_rescale_priorities(c, bio_sectors(bio));
+	return false;
+skip:
+	bch_mark_sectors_bypassed(s, bio_sectors(bio));
+	return true;
+}
+
 /* Process reads */
 
 static void cached_dev_read_complete(struct closure *cl)
@@ -854,8 +979,8 @@ static void request_read_done_bh(struct closure *cl)
 	struct search *s = container_of(cl, struct search, cl);
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 
-	bch_mark_cache_accounting(s, !s->cache_miss, s->op.skip);
-	trace_bcache_read(s->orig_bio, !s->cache_miss, s->op.skip);
+	bch_mark_cache_accounting(s, !s->cache_miss, s->op.bypass);
+	trace_bcache_read(s->orig_bio, !s->cache_miss, s->op.bypass);
 
 	if (s->error)
 		continue_at_nobarrier(cl, request_read_error, bcache_wq);
@@ -873,7 +998,7 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 	struct bio *miss;
 
-	if (s->cache_miss || s->op.skip) {
+	if (s->cache_miss || s->op.bypass) {
 		miss = bch_bio_split(bio, sectors, GFP_NOIO, s->d->bio_split);
 		if (miss == bio)
 			s->op.lookup_done = true;
@@ -940,9 +1065,7 @@ static void request_read(struct cached_dev *dc, struct search *s)
 {
 	struct closure *cl = &s->cl;
 
-	check_should_skip(dc, s);
 	closure_call(&s->op.cl, btree_read_async, NULL, cl);
-
 	continue_at(cl, request_read_done_bh, NULL);
 }
 
@@ -961,41 +1084,48 @@ static void request_write(struct cached_dev *dc, struct search *s)
 {
 	struct closure *cl = &s->cl;
 	struct bio *bio = &s->bio.bio;
-	struct bkey start, end;
-	start = KEY(dc->disk.id, bio->bi_sector, 0);
-	end = KEY(dc->disk.id, bio_end_sector(bio), 0);
+	struct bkey start = KEY(dc->disk.id, bio->bi_sector, 0);
+	struct bkey end = KEY(dc->disk.id, bio_end_sector(bio), 0);
 
 	bch_keybuf_check_overlapping(&s->op.c->moving_gc_keys, &start, &end);
 
-	check_should_skip(dc, s);
 	down_read_non_owner(&dc->writeback_lock);
-
 	if (bch_keybuf_check_overlapping(&dc->writeback_keys, &start, &end)) {
-		s->op.skip	= false;
+		/*
+		 * We overlap with some dirty data undergoing background
+		 * writeback, force this write to writeback
+		 */
+		s->op.bypass	= false;
 		s->writeback	= true;
 	}
 
+	/*
+	 * Discards aren't _required_ to do anything, so skipping if
+	 * check_overlapping returned true is ok
+	 *
+	 * But check_overlapping drops dirty keys for which io hasn't started,
+	 * so we still want to call it.
+	 */
 	if (bio->bi_rw & REQ_DISCARD)
-		goto skip;
+		s->op.bypass = true;
 
 	if (should_writeback(dc, s->orig_bio,
 			     cache_mode(dc, bio),
-			     s->op.skip)) {
-		s->op.skip = false;
+			     s->op.bypass)) {
+		s->op.bypass = false;
 		s->writeback = true;
 	}
 
-	if (s->op.skip)
-		goto skip;
-
-	trace_bcache_write(s->orig_bio, s->writeback, s->op.skip);
+	trace_bcache_write(s->orig_bio, s->writeback, s->op.bypass);
 
-	if (!s->writeback) {
-		s->op.cache_bio = bio_clone_bioset(bio, GFP_NOIO,
-						   dc->disk.bio_split);
+	if (s->op.bypass) {
+		s->op.cache_bio = s->orig_bio;
+		bio_get(s->op.cache_bio);
 
-		closure_bio_submit(bio, cl, s->d);
-	} else {
+		if (!(bio->bi_rw & REQ_DISCARD) ||
+		    blk_queue_discard(bdev_get_queue(dc->bdev)))
+			closure_bio_submit(bio, cl, s->d);
+	} else if (s->writeback) {
 		bch_writeback_add(dc);
 		s->op.cache_bio = bio;
 
@@ -1011,21 +1141,15 @@ static void request_write(struct cached_dev *dc, struct search *s)
 
 			closure_bio_submit(flush, cl, s->d);
 		}
+	} else {
+		s->op.cache_bio = bio_clone_bioset(bio, GFP_NOIO,
+						   dc->disk.bio_split);
+
+		closure_bio_submit(bio, cl, s->d);
 	}
-out:
+
 	closure_call(&s->op.cl, bch_insert_data, NULL, cl);
 	continue_at(cl, cached_dev_write_complete, NULL);
-skip:
-	s->op.skip = true;
-	s->op.cache_bio = s->orig_bio;
-	bio_get(s->op.cache_bio);
-
-	if ((bio->bi_rw & REQ_DISCARD) &&
-	    !blk_queue_discard(bdev_get_queue(dc->bdev)))
-		goto out;
-
-	closure_bio_submit(bio, cl, s->d);
-	goto out;
 }
 
 static void request_nodata(struct cached_dev *dc, struct search *s)
@@ -1033,14 +1157,10 @@ static void request_nodata(struct cached_dev *dc, struct search *s)
 	struct closure *cl = &s->cl;
 	struct bio *bio = &s->bio.bio;
 
-	if (bio->bi_rw & REQ_DISCARD) {
-		request_write(dc, s);
-		return;
-	}
-
 	if (s->op.flush_journal)
 		bch_journal_meta(s->op.c, cl);
 
+	/* If it's a flush, we send the flush to the backing device too */
 	closure_bio_submit(bio, cl, s->d);
 
 	continue_at(cl, cached_dev_bio_complete, NULL);
@@ -1048,134 +1168,6 @@ static void request_nodata(struct cached_dev *dc, struct search *s)
 
 /* Cached devices - read & write stuff */
 
-unsigned bch_get_congested(struct cache_set *c)
-{
-	int i;
-	long rand;
-
-	if (!c->congested_read_threshold_us &&
-	    !c->congested_write_threshold_us)
-		return 0;
-
-	i = (local_clock_us() - c->congested_last_us) / 1024;
-	if (i < 0)
-		return 0;
-
-	i += atomic_read(&c->congested);
-	if (i >= 0)
-		return 0;
-
-	i += CONGESTED_MAX;
-
-	if (i > 0)
-		i = fract_exp_two(i, 6);
-
-	rand = get_random_int();
-	i -= bitmap_weight(&rand, BITS_PER_LONG);
-
-	return i > 0 ? i : 1;
-}
-
-static void add_sequential(struct task_struct *t)
-{
-	ewma_add(t->sequential_io_avg,
-		 t->sequential_io, 8, 0);
-
-	t->sequential_io = 0;
-}
-
-static struct hlist_head *iohash(struct cached_dev *dc, uint64_t k)
-{
-	return &dc->io_hash[hash_64(k, RECENT_IO_BITS)];
-}
-
-static void check_should_skip(struct cached_dev *dc, struct search *s)
-{
-	struct cache_set *c = s->op.c;
-	struct bio *bio = &s->bio.bio;
-	unsigned mode = cache_mode(dc, bio);
-	unsigned sectors, congested = bch_get_congested(c);
-
-	if (atomic_read(&dc->disk.detaching) ||
-	    c->gc_stats.in_use > CUTOFF_CACHE_ADD ||
-	    (bio->bi_rw & REQ_DISCARD))
-		goto skip;
-
-	if (mode == CACHE_MODE_NONE ||
-	    (mode == CACHE_MODE_WRITEAROUND &&
-	     (bio->bi_rw & REQ_WRITE)))
-		goto skip;
-
-	if (bio->bi_sector   & (c->sb.block_size - 1) ||
-	    bio_sectors(bio) & (c->sb.block_size - 1)) {
-		pr_debug("skipping unaligned io");
-		goto skip;
-	}
-
-	if (!congested && !dc->sequential_cutoff)
-		goto rescale;
-
-	if (!congested &&
-	    mode == CACHE_MODE_WRITEBACK &&
-	    (bio->bi_rw & REQ_WRITE) &&
-	    (bio->bi_rw & REQ_SYNC))
-		goto rescale;
-
-	if (dc->sequential_merge) {
-		struct io *i;
-
-		spin_lock(&dc->io_lock);
-
-		hlist_for_each_entry(i, iohash(dc, bio->bi_sector), hash)
-			if (i->last == bio->bi_sector &&
-			    time_before(jiffies, i->jiffies))
-				goto found;
-
-		i = list_first_entry(&dc->io_lru, struct io, lru);
-
-		add_sequential(s->task);
-		i->sequential = 0;
-found:
-		if (i->sequential + bio->bi_size > i->sequential)
-			i->sequential	+= bio->bi_size;
-
-		i->last			 = bio_end_sector(bio);
-		i->jiffies		 = jiffies + msecs_to_jiffies(5000);
-		s->task->sequential_io	 = i->sequential;
-
-		hlist_del(&i->hash);
-		hlist_add_head(&i->hash, iohash(dc, i->last));
-		list_move_tail(&i->lru, &dc->io_lru);
-
-		spin_unlock(&dc->io_lock);
-	} else {
-		s->task->sequential_io = bio->bi_size;
-
-		add_sequential(s->task);
-	}
-
-	sectors = max(s->task->sequential_io,
-		      s->task->sequential_io_avg) >> 9;
-
-	if (dc->sequential_cutoff &&
-	    sectors >= dc->sequential_cutoff >> 9) {
-		trace_bcache_bypass_sequential(s->orig_bio);
-		goto skip;
-	}
-
-	if (congested && sectors >= congested) {
-		trace_bcache_bypass_congested(s->orig_bio);
-		goto skip;
-	}
-
-rescale:
-	bch_rescale_priorities(c, bio_sectors(bio));
-	return;
-skip:
-	bch_mark_sectors_bypassed(s, bio_sectors(bio));
-	s->op.skip = true;
-}
-
 static void cached_dev_make_request(struct request_queue *q, struct bio *bio)
 {
 	struct search *s;
@@ -1195,12 +1187,16 @@ static void cached_dev_make_request(struct request_queue *q, struct bio *bio)
 		s = search_alloc(bio, d);
 		trace_bcache_request_start(s, bio);
 
-		if (!bio_has_data(bio))
+		if (!bio->bi_size)
 			request_nodata(dc, s);
-		else if (rw)
-			request_write(dc, s);
-		else
-			request_read(dc, s);
+		else {
+			s->op.bypass = check_should_bypass(dc, s);
+
+			if (rw)
+				request_write(dc, s);
+			else
+				request_read(dc, s);
+		}
 	} else {
 		if ((bio->bi_rw & REQ_DISCARD) &&
 		    !blk_queue_discard(bdev_get_queue(dc->bdev)))
@@ -1298,21 +1294,21 @@ static void flash_dev_make_request(struct request_queue *q, struct bio *bio)
 
 	trace_bcache_request_start(s, bio);
 
-	if (bio_has_data(bio) && !rw) {
-		closure_call(&s->op.cl, btree_read_async, NULL, cl);
-	} else if (bio_has_data(bio) || s->op.skip) {
+	if (!bio->bi_size) {
+		if (s->op.flush_journal)
+			bch_journal_meta(s->op.c, cl);
+	} else if (rw) {
 		bch_keybuf_check_overlapping(&s->op.c->moving_gc_keys,
 					&KEY(d->id, bio->bi_sector, 0),
 					&KEY(d->id, bio_end_sector(bio), 0));
 
+		s->op.bypass	= (bio->bi_rw & REQ_DISCARD) != 0;
 		s->writeback	= true;
 		s->op.cache_bio	= bio;
 
 		closure_call(&s->op.cl, bch_insert_data, NULL, cl);
 	} else {
-		/* No data - probably a cache flush */
-		if (s->op.flush_journal)
-			bch_journal_meta(s->op.c, cl);
+		closure_call(&s->op.cl, btree_read_async, NULL, cl);
 	}
 
 	continue_at(cl, search_free, NULL);
-- 
cgit 


From cdd972b164be8fc69f6ee8533c5a07b621da74c7 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Tue, 10 Sep 2013 17:06:17 -0700
Subject: bcache: Refactor read request code a bit

More refactoring, and renaming.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/request.c | 71 ++++++++++++++++++++++-----------------------
 1 file changed, 35 insertions(+), 36 deletions(-)

diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index dbc2ef6e7a35..3b85f33ae4c7 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -884,7 +884,7 @@ skip:
 
 /* Process reads */
 
-static void cached_dev_read_complete(struct closure *cl)
+static void cached_dev_cache_miss_done(struct closure *cl)
 {
 	struct search *s = container_of(cl, struct search, cl);
 
@@ -902,9 +902,10 @@ static void cached_dev_read_complete(struct closure *cl)
 	cached_dev_bio_complete(cl);
 }
 
-static void request_read_error(struct closure *cl)
+static void cached_dev_read_error(struct closure *cl)
 {
 	struct search *s = container_of(cl, struct search, cl);
+	struct bio *bio = &s->bio.bio;
 	struct bio_vec *bv;
 	int i;
 
@@ -928,20 +929,20 @@ static void request_read_error(struct closure *cl)
 
 		/* XXX: invalidate cache */
 
-		closure_bio_submit(&s->bio.bio, &s->cl, s->d);
+		closure_bio_submit(bio, cl, s->d);
 	}
 
-	continue_at(cl, cached_dev_read_complete, NULL);
+	continue_at(cl, cached_dev_cache_miss_done, NULL);
 }
 
-static void request_read_done(struct closure *cl)
+static void cached_dev_read_done(struct closure *cl)
 {
 	struct search *s = container_of(cl, struct search, cl);
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 
 	/*
-	 * s->cache_bio != NULL implies that we had a cache miss; cache_bio now
-	 * contains data ready to be inserted into the cache.
+	 * We had a cache miss; cache_bio now contains data ready to be inserted
+	 * into the cache.
 	 *
 	 * First, we copy the data we just read from cache_bio's bounce buffers
 	 * to the buffers the original bio pointed to:
@@ -971,10 +972,10 @@ static void request_read_done(struct closure *cl)
 		closure_call(&s->op.cl, bch_insert_data, NULL, cl);
 	}
 
-	continue_at(cl, cached_dev_read_complete, NULL);
+	continue_at(cl, cached_dev_cache_miss_done, NULL);
 }
 
-static void request_read_done_bh(struct closure *cl)
+static void cached_dev_read_done_bh(struct closure *cl)
 {
 	struct search *s = container_of(cl, struct search, cl);
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
@@ -983,11 +984,11 @@ static void request_read_done_bh(struct closure *cl)
 	trace_bcache_read(s->orig_bio, !s->cache_miss, s->op.bypass);
 
 	if (s->error)
-		continue_at_nobarrier(cl, request_read_error, bcache_wq);
+		continue_at_nobarrier(cl, cached_dev_read_error, bcache_wq);
 	else if (s->op.cache_bio || verify(dc, &s->bio.bio))
-		continue_at_nobarrier(cl, request_read_done, bcache_wq);
+		continue_at_nobarrier(cl, cached_dev_read_done, bcache_wq);
 	else
-		continue_at_nobarrier(cl, cached_dev_read_complete, NULL);
+		continue_at_nobarrier(cl, cached_dev_bio_complete, NULL);
 }
 
 static int cached_dev_cache_miss(struct btree *b, struct search *s,
@@ -996,7 +997,7 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
 	int ret = 0;
 	unsigned reada = 0;
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
-	struct bio *miss;
+	struct bio *miss, *cache_bio;
 
 	if (s->cache_miss || s->op.bypass) {
 		miss = bch_bio_split(bio, sectors, GFP_NOIO, s->d->bio_split);
@@ -1027,33 +1028,31 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
 		/* btree_search_recurse()'s btree iterator is no good anymore */
 		ret = -EINTR;
 
-	s->op.cache_bio = bio_alloc_bioset(GFP_NOWAIT,
+	cache_bio = bio_alloc_bioset(GFP_NOWAIT,
 			DIV_ROUND_UP(s->cache_bio_sectors, PAGE_SECTORS),
 			dc->disk.bio_split);
-
-	if (!s->op.cache_bio)
+	if (!cache_bio)
 		goto out_submit;
 
-	s->op.cache_bio->bi_sector	= miss->bi_sector;
-	s->op.cache_bio->bi_bdev	= miss->bi_bdev;
-	s->op.cache_bio->bi_size	= s->cache_bio_sectors << 9;
+	cache_bio->bi_sector	= miss->bi_sector;
+	cache_bio->bi_bdev	= miss->bi_bdev;
+	cache_bio->bi_size	= s->cache_bio_sectors << 9;
 
-	s->op.cache_bio->bi_end_io	= request_endio;
-	s->op.cache_bio->bi_private	= &s->cl;
+	cache_bio->bi_end_io	= request_endio;
+	cache_bio->bi_private	= &s->cl;
 
-	bch_bio_map(s->op.cache_bio, NULL);
-	if (bio_alloc_pages(s->op.cache_bio, __GFP_NOWARN|GFP_NOIO))
+	bch_bio_map(cache_bio, NULL);
+	if (bio_alloc_pages(cache_bio, __GFP_NOWARN|GFP_NOIO))
 		goto out_put;
 
-	s->cache_miss = miss;
-	bio_get(s->op.cache_bio);
-
-	closure_bio_submit(s->op.cache_bio, &s->cl, s->d);
+	s->cache_miss	= miss;
+	s->op.cache_bio = cache_bio;
+	bio_get(cache_bio);
+	closure_bio_submit(cache_bio, &s->cl, s->d);
 
 	return ret;
 out_put:
-	bio_put(s->op.cache_bio);
-	s->op.cache_bio = NULL;
+	bio_put(cache_bio);
 out_submit:
 	miss->bi_end_io		= request_endio;
 	miss->bi_private	= &s->cl;
@@ -1061,12 +1060,12 @@ out_submit:
 	return ret;
 }
 
-static void request_read(struct cached_dev *dc, struct search *s)
+static void cached_dev_read(struct cached_dev *dc, struct search *s)
 {
 	struct closure *cl = &s->cl;
 
 	closure_call(&s->op.cl, btree_read_async, NULL, cl);
-	continue_at(cl, request_read_done_bh, NULL);
+	continue_at(cl, cached_dev_read_done_bh, NULL);
 }
 
 /* Process writes */
@@ -1080,7 +1079,7 @@ static void cached_dev_write_complete(struct closure *cl)
 	cached_dev_bio_complete(cl);
 }
 
-static void request_write(struct cached_dev *dc, struct search *s)
+static void cached_dev_write(struct cached_dev *dc, struct search *s)
 {
 	struct closure *cl = &s->cl;
 	struct bio *bio = &s->bio.bio;
@@ -1152,7 +1151,7 @@ static void request_write(struct cached_dev *dc, struct search *s)
 	continue_at(cl, cached_dev_write_complete, NULL);
 }
 
-static void request_nodata(struct cached_dev *dc, struct search *s)
+static void cached_dev_nodata(struct cached_dev *dc, struct search *s)
 {
 	struct closure *cl = &s->cl;
 	struct bio *bio = &s->bio.bio;
@@ -1188,14 +1187,14 @@ static void cached_dev_make_request(struct request_queue *q, struct bio *bio)
 		trace_bcache_request_start(s, bio);
 
 		if (!bio->bi_size)
-			request_nodata(dc, s);
+			cached_dev_nodata(dc, s);
 		else {
 			s->op.bypass = check_should_bypass(dc, s);
 
 			if (rw)
-				request_write(dc, s);
+				cached_dev_write(dc, s);
 			else
-				request_read(dc, s);
+				cached_dev_read(dc, s);
 		}
 	} else {
 		if ((bio->bi_rw & REQ_DISCARD) &&
-- 
cgit 


From a34a8bfd4e6358c646928320d37b0425c0762f8a Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Thu, 24 Oct 2013 17:07:04 -0700
Subject: bcache: Refactor journalling flow control

Making things less asynchronous that don't need to be - bch_journal()
only has to block when the journal or journal entry is full, which is
emphatically not a fast path. So make it a normal function that just
returns when it finishes, to make the code and control flow easier to
follow.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/btree.c    |   3 -
 drivers/md/bcache/closure.h  |   2 +-
 drivers/md/bcache/journal.c  | 213 ++++++++++++++++++++-----------------------
 drivers/md/bcache/journal.h  |   3 +-
 drivers/md/bcache/movinggc.c |   2 +-
 drivers/md/bcache/request.c  | 160 ++++++++++++++++++++------------
 drivers/md/bcache/request.h  |   3 +-
 7 files changed, 207 insertions(+), 179 deletions(-)

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index f960607f1f25..777c01d67ef0 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -2164,9 +2164,6 @@ int bch_btree_insert(struct btree_op *op, struct cache_set *c,
 		}
 	}
 
-	if (op->journal)
-		atomic_dec_bug(op->journal);
-	op->journal = NULL;
 	return ret;
 }
 
diff --git a/drivers/md/bcache/closure.h b/drivers/md/bcache/closure.h
index 00039924ea9d..ab011f03801f 100644
--- a/drivers/md/bcache/closure.h
+++ b/drivers/md/bcache/closure.h
@@ -642,7 +642,7 @@ do {									\
 #define continue_at_nobarrier(_cl, _fn, _wq)				\
 do {									\
 	set_closure_fn(_cl, _fn, _wq);					\
-	closure_queue(cl);						\
+	closure_queue(_cl);						\
 	return;								\
 } while (0)
 
diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index 1bdefdb1fa71..940e89e0d706 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -318,7 +318,6 @@ int bch_journal_replay(struct cache_set *s, struct list_head *list,
 			bch_keylist_push(&op->keys);
 
 			op->journal = i->pin;
-			atomic_inc(op->journal);
 
 			ret = bch_btree_insert(op, s, &op->keys);
 			if (ret)
@@ -357,48 +356,35 @@ static void btree_flush_write(struct cache_set *c)
 	 * Try to find the btree node with that references the oldest journal
 	 * entry, best is our current candidate and is locked if non NULL:
 	 */
-	struct btree *b, *best = NULL;
-	unsigned iter;
+	struct btree *b, *best;
+	unsigned i;
+retry:
+	best = NULL;
+
+	for_each_cached_btree(b, c, i)
+		if (btree_current_write(b)->journal) {
+			if (!best)
+				best = b;
+			else if (journal_pin_cmp(c,
+						 btree_current_write(best),
+						 btree_current_write(b))) {
+				best = b;
+			}
+		}
 
-	for_each_cached_btree(b, c, iter) {
-		if (!down_write_trylock(&b->lock))
-			continue;
+	b = best;
+	if (b) {
+		rw_lock(true, b, b->level);
 
-		if (!btree_node_dirty(b) ||
-		    !btree_current_write(b)->journal) {
+		if (!btree_current_write(b)->journal) {
 			rw_unlock(true, b);
-			continue;
+			/* We raced */
+			goto retry;
 		}
 
-		if (!best)
-			best = b;
-		else if (journal_pin_cmp(c,
-					 btree_current_write(best),
-					 btree_current_write(b))) {
-			rw_unlock(true, best);
-			best = b;
-		} else
-			rw_unlock(true, b);
+		bch_btree_node_write(b, NULL);
+		rw_unlock(true, b);
 	}
-
-	if (best)
-		goto out;
-
-	/* We can't find the best btree node, just pick the first */
-	list_for_each_entry(b, &c->btree_cache, list)
-		if (!b->level && btree_node_dirty(b)) {
-			best = b;
-			rw_lock(true, best, best->level);
-			goto found;
-		}
-
-out:
-	if (!best)
-		return;
-found:
-	if (btree_node_dirty(best))
-		bch_btree_node_write(best, NULL);
-	rw_unlock(true, best);
 }
 
 #define last_seq(j)	((j)->seq - fifo_used(&(j)->pin) + 1)
@@ -494,7 +480,7 @@ static void journal_reclaim(struct cache_set *c)
 		do_journal_discard(ca);
 
 	if (c->journal.blocks_free)
-		return;
+		goto out;
 
 	/*
 	 * Allocate:
@@ -520,7 +506,7 @@ static void journal_reclaim(struct cache_set *c)
 
 	if (n)
 		c->journal.blocks_free = c->sb.bucket_size >> c->block_bits;
-
+out:
 	if (!journal_full(&c->journal))
 		__closure_wake_up(&c->journal.wait);
 }
@@ -659,7 +645,7 @@ static void journal_write(struct closure *cl)
 	journal_write_unlocked(cl);
 }
 
-static void __journal_try_write(struct cache_set *c, bool noflush)
+static void journal_try_write(struct cache_set *c)
 	__releases(c->journal.lock)
 {
 	struct closure *cl = &c->journal.io;
@@ -667,29 +653,59 @@ static void __journal_try_write(struct cache_set *c, bool noflush)
 
 	w->need_write = true;
 
-	if (!closure_trylock(cl, &c->cl))
-		spin_unlock(&c->journal.lock);
-	else if (noflush && journal_full(&c->journal)) {
-		spin_unlock(&c->journal.lock);
-		continue_at(cl, journal_write, system_wq);
-	} else
+	if (closure_trylock(cl, &c->cl))
 		journal_write_unlocked(cl);
+	else
+		spin_unlock(&c->journal.lock);
 }
 
-#define journal_try_write(c)	__journal_try_write(c, false)
-
-void bch_journal_meta(struct cache_set *c, struct closure *cl)
+static struct journal_write *journal_wait_for_write(struct cache_set *c,
+						    unsigned nkeys)
 {
-	struct journal_write *w;
+	size_t sectors;
+	struct closure cl;
 
-	if (CACHE_SYNC(&c->sb)) {
-		spin_lock(&c->journal.lock);
-		w = c->journal.cur;
+	closure_init_stack(&cl);
+
+	spin_lock(&c->journal.lock);
+
+	while (1) {
+		struct journal_write *w = c->journal.cur;
+
+		sectors = __set_blocks(w->data, w->data->keys + nkeys,
+				       c) * c->sb.block_size;
+
+		if (sectors <= min_t(size_t,
+				     c->journal.blocks_free * c->sb.block_size,
+				     PAGE_SECTORS << JSET_BITS))
+			return w;
+
+		/* XXX: tracepoint */
+		if (!journal_full(&c->journal)) {
+			trace_bcache_journal_entry_full(c);
+
+			/*
+			 * XXX: If we were inserting so many keys that they
+			 * won't fit in an _empty_ journal write, we'll
+			 * deadlock. For now, handle this in
+			 * bch_keylist_realloc() - but something to think about.
+			 */
+			BUG_ON(!w->data->keys);
+
+			closure_wait(&w->wait, &cl);
+			journal_try_write(c); /* unlocks */
+		} else {
+			trace_bcache_journal_full(c);
+
+			closure_wait(&c->journal.wait, &cl);
+			journal_reclaim(c);
+			spin_unlock(&c->journal.lock);
 
-		if (cl)
-			BUG_ON(!closure_wait(&w->wait, cl));
+			btree_flush_write(c);
+		}
 
-		__journal_try_write(c, true);
+		closure_sync(&cl);
+		spin_lock(&c->journal.lock);
 	}
 }
 
@@ -708,68 +724,26 @@ static void journal_write_work(struct work_struct *work)
  * bch_journal() hands those same keys off to btree_insert_async()
  */
 
-void bch_journal(struct closure *cl)
+atomic_t *bch_journal(struct cache_set *c,
+		      struct keylist *keys,
+		      struct closure *parent)
 {
-	struct btree_op *op = container_of(cl, struct btree_op, cl);
-	struct cache_set *c = op->c;
 	struct journal_write *w;
-	size_t sectors, nkeys;
-
-	if (op->type != BTREE_INSERT ||
-	    !CACHE_SYNC(&c->sb))
-		goto out;
-
-	/*
-	 * If we're looping because we errored, might already be waiting on
-	 * another journal write:
-	 */
-	while (atomic_read(&cl->parent->remaining) & CLOSURE_WAITING)
-		closure_sync(cl->parent);
-
-	spin_lock(&c->journal.lock);
-
-	if (journal_full(&c->journal)) {
-		trace_bcache_journal_full(c);
-
-		closure_wait(&c->journal.wait, cl);
-
-		journal_reclaim(c);
-		spin_unlock(&c->journal.lock);
-
-		btree_flush_write(c);
-		continue_at(cl, bch_journal, bcache_wq);
-	}
+	atomic_t *ret;
 
-	w = c->journal.cur;
-	nkeys = w->data->keys + bch_keylist_nkeys(&op->keys);
-	sectors = __set_blocks(w->data, nkeys, c) * c->sb.block_size;
+	if (!CACHE_SYNC(&c->sb))
+		return NULL;
 
-	if (sectors > min_t(size_t,
-			    c->journal.blocks_free * c->sb.block_size,
-			    PAGE_SECTORS << JSET_BITS)) {
-		trace_bcache_journal_entry_full(c);
+	w = journal_wait_for_write(c, bch_keylist_nkeys(keys));
 
-		/*
-		 * XXX: If we were inserting so many keys that they won't fit in
-		 * an _empty_ journal write, we'll deadlock. For now, handle
-		 * this in bch_keylist_realloc() - but something to think about.
-		 */
-		BUG_ON(!w->data->keys);
+	memcpy(end(w->data), keys->keys, bch_keylist_bytes(keys));
+	w->data->keys += bch_keylist_nkeys(keys);
 
-		BUG_ON(!closure_wait(&w->wait, cl));
+	ret = &fifo_back(&c->journal.pin);
+	atomic_inc(ret);
 
-		journal_try_write(c);
-		continue_at(cl, bch_journal, bcache_wq);
-	}
-
-	memcpy(end(w->data), op->keys.keys, bch_keylist_bytes(&op->keys));
-	w->data->keys += bch_keylist_nkeys(&op->keys);
-
-	op->journal = &fifo_back(&c->journal.pin);
-	atomic_inc(op->journal);
-
-	if (op->flush_journal) {
-		closure_wait(&w->wait, cl->parent);
+	if (parent) {
+		closure_wait(&w->wait, parent);
 		journal_try_write(c);
 	} else if (!w->need_write) {
 		schedule_delayed_work(&c->journal.work,
@@ -778,8 +752,21 @@ void bch_journal(struct closure *cl)
 	} else {
 		spin_unlock(&c->journal.lock);
 	}
-out:
-	bch_btree_insert_async(cl);
+
+
+	return ret;
+}
+
+void bch_journal_meta(struct cache_set *c, struct closure *cl)
+{
+	struct keylist keys;
+	atomic_t *ref;
+
+	bch_keylist_init(&keys);
+
+	ref = bch_journal(c, &keys, cl);
+	if (ref)
+		atomic_dec_bug(ref);
 }
 
 void bch_journal_free(struct cache_set *c)
diff --git a/drivers/md/bcache/journal.h b/drivers/md/bcache/journal.h
index 3ca93d3d566c..7045e6fd2d5a 100644
--- a/drivers/md/bcache/journal.h
+++ b/drivers/md/bcache/journal.h
@@ -200,8 +200,9 @@ struct journal_device {
 struct closure;
 struct cache_set;
 struct btree_op;
+struct keylist;
 
-void bch_journal(struct closure *);
+atomic_t *bch_journal(struct cache_set *, struct keylist *, struct closure *);
 void bch_journal_next(struct journal *);
 void bch_journal_mark(struct cache_set *, struct list_head *);
 void bch_journal_meta(struct cache_set *, struct closure *);
diff --git a/drivers/md/bcache/movinggc.c b/drivers/md/bcache/movinggc.c
index dd8a035c5ae1..2c42377a65aa 100644
--- a/drivers/md/bcache/movinggc.c
+++ b/drivers/md/bcache/movinggc.c
@@ -110,7 +110,7 @@ static void write_moving(struct closure *cl)
 		bkey_copy(&s->op.replace, &io->w->key);
 
 		closure_init(&s->op.cl, cl);
-		bch_insert_data(&s->op.cl);
+		bch_data_insert(&s->op.cl);
 	}
 
 	continue_at(cl, write_moving_finish, bch_gc_wq);
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 3b85f33ae4c7..1c3af44b097b 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -25,6 +25,8 @@
 
 struct kmem_cache *bch_search_cache;
 
+static void bch_data_insert_start(struct closure *);
+
 /* Cgroup interface */
 
 #ifdef CONFIG_CGROUP_BCACHE
@@ -211,31 +213,42 @@ static void bio_csum(struct bio *bio, struct bkey *k)
 
 /* Insert data into cache */
 
-static void bio_invalidate(struct closure *cl)
+static void bch_data_insert_keys(struct closure *cl)
 {
 	struct btree_op *op = container_of(cl, struct btree_op, cl);
-	struct bio *bio = op->cache_bio;
+	struct search *s = container_of(op, struct search, op);
 
-	pr_debug("invalidating %i sectors from %llu",
-		 bio_sectors(bio), (uint64_t) bio->bi_sector);
+	/*
+	 * If we're looping, might already be waiting on
+	 * another journal write - can't wait on more than one journal write at
+	 * a time
+	 *
+	 * XXX: this looks wrong
+	 */
+#if 0
+	while (atomic_read(&s->cl.remaining) & CLOSURE_WAITING)
+		closure_sync(&s->cl);
+#endif
 
-	while (bio_sectors(bio)) {
-		unsigned len = min(bio_sectors(bio), 1U << 14);
+	if (s->write)
+		op->journal = bch_journal(op->c, &op->keys,
+					  op->flush_journal
+					  ? &s->cl : NULL);
 
-		if (bch_keylist_realloc(&op->keys, 0, op->c))
-			goto out;
+	if (bch_btree_insert(op, op->c, &op->keys)) {
+		s->error		= -ENOMEM;
+		op->insert_data_done	= true;
+	}
 
-		bio->bi_sector	+= len;
-		bio->bi_size	-= len << 9;
+	if (op->journal)
+		atomic_dec_bug(op->journal);
+	op->journal = NULL;
 
-		bch_keylist_add(&op->keys,
-				&KEY(op->inode, bio->bi_sector, len));
-	}
+	if (!op->insert_data_done)
+		continue_at(cl, bch_data_insert_start, bcache_wq);
 
-	op->insert_data_done = true;
-	bio_put(bio);
-out:
-	continue_at(cl, bch_journal, bcache_wq);
+	bch_keylist_free(&op->keys);
+	closure_return(cl);
 }
 
 struct open_bucket {
@@ -423,7 +436,34 @@ static bool bch_alloc_sectors(struct bkey *k, unsigned sectors,
 	return true;
 }
 
-static void bch_insert_data_error(struct closure *cl)
+static void bch_data_invalidate(struct closure *cl)
+{
+	struct btree_op *op = container_of(cl, struct btree_op, cl);
+	struct bio *bio = op->cache_bio;
+
+	pr_debug("invalidating %i sectors from %llu",
+		 bio_sectors(bio), (uint64_t) bio->bi_sector);
+
+	while (bio_sectors(bio)) {
+		unsigned len = min(bio_sectors(bio), 1U << 14);
+
+		if (bch_keylist_realloc(&op->keys, 0, op->c))
+			goto out;
+
+		bio->bi_sector	+= len;
+		bio->bi_size	-= len << 9;
+
+		bch_keylist_add(&op->keys, &KEY(op->inode,
+						bio->bi_sector, len));
+	}
+
+	op->insert_data_done = true;
+	bio_put(bio);
+out:
+	continue_at(cl, bch_data_insert_keys, bcache_wq);
+}
+
+static void bch_data_insert_error(struct closure *cl)
 {
 	struct btree_op *op = container_of(cl, struct btree_op, cl);
 
@@ -450,10 +490,10 @@ static void bch_insert_data_error(struct closure *cl)
 
 	op->keys.top = dst;
 
-	bch_journal(cl);
+	bch_data_insert_keys(cl);
 }
 
-static void bch_insert_data_endio(struct bio *bio, int error)
+static void bch_data_insert_endio(struct bio *bio, int error)
 {
 	struct closure *cl = bio->bi_private;
 	struct btree_op *op = container_of(cl, struct btree_op, cl);
@@ -464,7 +504,7 @@ static void bch_insert_data_endio(struct bio *bio, int error)
 		if (s->writeback)
 			s->error = error;
 		else if (s->write)
-			set_closure_fn(cl, bch_insert_data_error, bcache_wq);
+			set_closure_fn(cl, bch_data_insert_error, bcache_wq);
 		else
 			set_closure_fn(cl, NULL, NULL);
 	}
@@ -472,14 +512,14 @@ static void bch_insert_data_endio(struct bio *bio, int error)
 	bch_bbio_endio(op->c, bio, error, "writing data to cache");
 }
 
-static void bch_insert_data_loop(struct closure *cl)
+static void bch_data_insert_start(struct closure *cl)
 {
 	struct btree_op *op = container_of(cl, struct btree_op, cl);
 	struct search *s = container_of(op, struct search, op);
 	struct bio *bio = op->cache_bio, *n;
 
 	if (op->bypass)
-		return bio_invalidate(cl);
+		return bch_data_invalidate(cl);
 
 	if (atomic_sub_return(bio_sectors(bio), &op->c->sectors_to_gc) < 0) {
 		set_gc_sectors(op->c);
@@ -502,7 +542,7 @@ static void bch_insert_data_loop(struct closure *cl)
 		if (bch_keylist_realloc(&op->keys,
 					1 + (op->csum ? 1 : 0),
 					op->c))
-			continue_at(cl, bch_journal, bcache_wq);
+			continue_at(cl, bch_data_insert_keys, bcache_wq);
 
 		k = op->keys.top;
 		bkey_init(k);
@@ -514,7 +554,7 @@ static void bch_insert_data_loop(struct closure *cl)
 
 		n = bch_bio_split(bio, KEY_SIZE(k), GFP_NOIO, split);
 
-		n->bi_end_io	= bch_insert_data_endio;
+		n->bi_end_io	= bch_data_insert_endio;
 		n->bi_private	= cl;
 
 		if (s->writeback) {
@@ -537,7 +577,7 @@ static void bch_insert_data_loop(struct closure *cl)
 	} while (n != bio);
 
 	op->insert_data_done = true;
-	continue_at(cl, bch_journal, bcache_wq);
+	continue_at(cl, bch_data_insert_keys, bcache_wq);
 err:
 	/* bch_alloc_sectors() blocks if s->writeback = true */
 	BUG_ON(s->writeback);
@@ -556,7 +596,7 @@ err:
 		 * rest of the write.
 		 */
 		op->bypass = true;
-		return bio_invalidate(cl);
+		return bch_data_invalidate(cl);
 	} else {
 		/*
 		 * From a cache miss, we can just insert the keys for the data
@@ -566,14 +606,14 @@ err:
 		bio_put(bio);
 
 		if (!bch_keylist_empty(&op->keys))
-			continue_at(cl, bch_journal, bcache_wq);
+			continue_at(cl, bch_data_insert_keys, bcache_wq);
 		else
 			closure_return(cl);
 	}
 }
 
 /**
- * bch_insert_data - stick some data in the cache
+ * bch_data_insert - stick some data in the cache
  *
  * This is the starting point for any data to end up in a cache device; it could
  * be from a normal write, or a writeback write, or a write to a flash only
@@ -591,30 +631,13 @@ err:
  * If op->bypass is true, instead of inserting the data it invalidates the
  * region of the cache represented by op->cache_bio and op->inode.
  */
-void bch_insert_data(struct closure *cl)
+void bch_data_insert(struct closure *cl)
 {
 	struct btree_op *op = container_of(cl, struct btree_op, cl);
 
 	bch_keylist_init(&op->keys);
 	bio_get(op->cache_bio);
-	bch_insert_data_loop(cl);
-}
-
-void bch_btree_insert_async(struct closure *cl)
-{
-	struct btree_op *op = container_of(cl, struct btree_op, cl);
-	struct search *s = container_of(op, struct search, op);
-
-	if (bch_btree_insert(op, op->c, &op->keys)) {
-		s->error		= -ENOMEM;
-		op->insert_data_done	= true;
-	}
-
-	if (op->insert_data_done) {
-		bch_keylist_free(&op->keys);
-		closure_return(cl);
-	} else
-		continue_at(cl, bch_insert_data_loop, bcache_wq);
+	bch_data_insert_start(cl);
 }
 
 /* Common code for the make_request functions */
@@ -969,7 +992,7 @@ static void cached_dev_read_done(struct closure *cl)
 	if (s->op.cache_bio &&
 	    !test_bit(CACHE_SET_STOPPING, &s->op.c->flags)) {
 		s->op.type = BTREE_REPLACE;
-		closure_call(&s->op.cl, bch_insert_data, NULL, cl);
+		closure_call(&s->op.cl, bch_data_insert, NULL, cl);
 	}
 
 	continue_at(cl, cached_dev_cache_miss_done, NULL);
@@ -1147,13 +1170,13 @@ static void cached_dev_write(struct cached_dev *dc, struct search *s)
 		closure_bio_submit(bio, cl, s->d);
 	}
 
-	closure_call(&s->op.cl, bch_insert_data, NULL, cl);
+	closure_call(&s->op.cl, bch_data_insert, NULL, cl);
 	continue_at(cl, cached_dev_write_complete, NULL);
 }
 
-static void cached_dev_nodata(struct cached_dev *dc, struct search *s)
+static void cached_dev_nodata(struct closure *cl)
 {
-	struct closure *cl = &s->cl;
+	struct search *s = container_of(cl, struct search, cl);
 	struct bio *bio = &s->bio.bio;
 
 	if (s->op.flush_journal)
@@ -1186,9 +1209,15 @@ static void cached_dev_make_request(struct request_queue *q, struct bio *bio)
 		s = search_alloc(bio, d);
 		trace_bcache_request_start(s, bio);
 
-		if (!bio->bi_size)
-			cached_dev_nodata(dc, s);
-		else {
+		if (!bio->bi_size) {
+			/*
+			 * can't call bch_journal_meta from under
+			 * generic_make_request
+			 */
+			continue_at_nobarrier(&s->cl,
+					      cached_dev_nodata,
+					      bcache_wq);
+		} else {
 			s->op.bypass = check_should_bypass(dc, s);
 
 			if (rw)
@@ -1275,6 +1304,16 @@ static int flash_dev_cache_miss(struct btree *b, struct search *s,
 	return 0;
 }
 
+static void flash_dev_nodata(struct closure *cl)
+{
+	struct search *s = container_of(cl, struct search, cl);
+
+	if (s->op.flush_journal)
+		bch_journal_meta(s->op.c, cl);
+
+	continue_at(cl, search_free, NULL);
+}
+
 static void flash_dev_make_request(struct request_queue *q, struct bio *bio)
 {
 	struct search *s;
@@ -1294,8 +1333,13 @@ static void flash_dev_make_request(struct request_queue *q, struct bio *bio)
 	trace_bcache_request_start(s, bio);
 
 	if (!bio->bi_size) {
-		if (s->op.flush_journal)
-			bch_journal_meta(s->op.c, cl);
+		/*
+		 * can't call bch_journal_meta from under
+		 * generic_make_request
+		 */
+		continue_at_nobarrier(&s->cl,
+				      flash_dev_nodata,
+				      bcache_wq);
 	} else if (rw) {
 		bch_keybuf_check_overlapping(&s->op.c->moving_gc_keys,
 					&KEY(d->id, bio->bi_sector, 0),
@@ -1305,7 +1349,7 @@ static void flash_dev_make_request(struct request_queue *q, struct bio *bio)
 		s->writeback	= true;
 		s->op.cache_bio	= bio;
 
-		closure_call(&s->op.cl, bch_insert_data, NULL, cl);
+		closure_call(&s->op.cl, bch_data_insert, NULL, cl);
 	} else {
 		closure_call(&s->op.cl, btree_read_async, NULL, cl);
 	}
diff --git a/drivers/md/bcache/request.h b/drivers/md/bcache/request.h
index 57dc4784f4f4..1f1b59d38db5 100644
--- a/drivers/md/bcache/request.h
+++ b/drivers/md/bcache/request.h
@@ -31,8 +31,7 @@ struct search {
 
 void bch_cache_read_endio(struct bio *, int);
 unsigned bch_get_congested(struct cache_set *);
-void bch_insert_data(struct closure *cl);
-void bch_btree_insert_async(struct closure *);
+void bch_data_insert(struct closure *cl);
 void bch_cache_read_endio(struct bio *, int);
 
 void bch_open_buckets_free(struct cache_set *);
-- 
cgit 


From 0b93207abb40d3c42bb83eba1e1e7edc1da77810 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 17:26:51 -0700
Subject: bcache: Move keylist out of btree_op

Slowly working on pruning struct btree_op - the aim is for it to only
contain things that are actually necessary for traversing the btree.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/btree.c     |  1 -
 drivers/md/bcache/btree.h     |  4 ----
 drivers/md/bcache/journal.c   | 11 +++++++----
 drivers/md/bcache/request.c   | 37 +++++++++++++++++++++----------------
 drivers/md/bcache/request.h   |  4 +++-
 drivers/md/bcache/writeback.c |  7 +++++--
 6 files changed, 36 insertions(+), 28 deletions(-)

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 777c01d67ef0..731cd8e3fe90 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -113,7 +113,6 @@ void bch_btree_op_init_stack(struct btree_op *op)
 	memset(op, 0, sizeof(struct btree_op));
 	closure_init_stack(&op->cl);
 	op->lock = -1;
-	bch_keylist_init(&op->keys);
 }
 
 /* Btree key manipulation */
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index ea0814b51574..17b7a4e39c7e 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -267,10 +267,6 @@ struct btree_op {
 	unsigned		lookup_done:1;
 	unsigned		insert_collision:1;
 
-	/* Anything after this point won't get zeroed in do_bio_hook() */
-
-	/* Keys to be inserted */
-	struct keylist		keys;
 	BKEY_PADDED(replace);
 };
 
diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index 940e89e0d706..8866f8ee3a07 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -301,6 +301,9 @@ int bch_journal_replay(struct cache_set *s, struct list_head *list,
 		list_entry(list->prev, struct journal_replay, list);
 
 	uint64_t start = i->j.last_seq, end = i->j.seq, n = start;
+	struct keylist keylist;
+
+	bch_keylist_init(&keylist);
 
 	list_for_each_entry(i, list, list) {
 		BUG_ON(i->pin && atomic_read(i->pin) != 1);
@@ -314,16 +317,16 @@ int bch_journal_replay(struct cache_set *s, struct list_head *list,
 		     k = bkey_next(k)) {
 			trace_bcache_journal_replay_key(k);
 
-			bkey_copy(op->keys.top, k);
-			bch_keylist_push(&op->keys);
+			bkey_copy(keylist.top, k);
+			bch_keylist_push(&keylist);
 
 			op->journal = i->pin;
 
-			ret = bch_btree_insert(op, s, &op->keys);
+			ret = bch_btree_insert(op, s, &keylist);
 			if (ret)
 				goto err;
 
-			BUG_ON(!bch_keylist_empty(&op->keys));
+			BUG_ON(!bch_keylist_empty(&keylist));
 			keys++;
 
 			cond_resched();
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 1c3af44b097b..d85c7001df61 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -231,11 +231,11 @@ static void bch_data_insert_keys(struct closure *cl)
 #endif
 
 	if (s->write)
-		op->journal = bch_journal(op->c, &op->keys,
+		op->journal = bch_journal(op->c, &s->insert_keys,
 					  op->flush_journal
 					  ? &s->cl : NULL);
 
-	if (bch_btree_insert(op, op->c, &op->keys)) {
+	if (bch_btree_insert(op, op->c, &s->insert_keys)) {
 		s->error		= -ENOMEM;
 		op->insert_data_done	= true;
 	}
@@ -247,7 +247,7 @@ static void bch_data_insert_keys(struct closure *cl)
 	if (!op->insert_data_done)
 		continue_at(cl, bch_data_insert_start, bcache_wq);
 
-	bch_keylist_free(&op->keys);
+	bch_keylist_free(&s->insert_keys);
 	closure_return(cl);
 }
 
@@ -439,6 +439,7 @@ static bool bch_alloc_sectors(struct bkey *k, unsigned sectors,
 static void bch_data_invalidate(struct closure *cl)
 {
 	struct btree_op *op = container_of(cl, struct btree_op, cl);
+	struct search *s = container_of(op, struct search, op);
 	struct bio *bio = op->cache_bio;
 
 	pr_debug("invalidating %i sectors from %llu",
@@ -447,14 +448,14 @@ static void bch_data_invalidate(struct closure *cl)
 	while (bio_sectors(bio)) {
 		unsigned len = min(bio_sectors(bio), 1U << 14);
 
-		if (bch_keylist_realloc(&op->keys, 0, op->c))
+		if (bch_keylist_realloc(&s->insert_keys, 0, op->c))
 			goto out;
 
 		bio->bi_sector	+= len;
 		bio->bi_size	-= len << 9;
 
-		bch_keylist_add(&op->keys, &KEY(op->inode,
-						bio->bi_sector, len));
+		bch_keylist_add(&s->insert_keys,
+				&KEY(op->inode, bio->bi_sector, len));
 	}
 
 	op->insert_data_done = true;
@@ -466,6 +467,7 @@ out:
 static void bch_data_insert_error(struct closure *cl)
 {
 	struct btree_op *op = container_of(cl, struct btree_op, cl);
+	struct search *s = container_of(op, struct search, op);
 
 	/*
 	 * Our data write just errored, which means we've got a bunch of keys to
@@ -476,9 +478,9 @@ static void bch_data_insert_error(struct closure *cl)
 	 * from the keys we'll accomplish just that.
 	 */
 
-	struct bkey *src = op->keys.keys, *dst = op->keys.keys;
+	struct bkey *src = s->insert_keys.keys, *dst = s->insert_keys.keys;
 
-	while (src != op->keys.top) {
+	while (src != s->insert_keys.top) {
 		struct bkey *n = bkey_next(src);
 
 		SET_KEY_PTRS(src, 0);
@@ -488,7 +490,7 @@ static void bch_data_insert_error(struct closure *cl)
 		src = n;
 	}
 
-	op->keys.top = dst;
+	s->insert_keys.top = dst;
 
 	bch_data_insert_keys(cl);
 }
@@ -539,12 +541,12 @@ static void bch_data_insert_start(struct closure *cl)
 			? s->d->bio_split : op->c->bio_split;
 
 		/* 1 for the device pointer and 1 for the chksum */
-		if (bch_keylist_realloc(&op->keys,
+		if (bch_keylist_realloc(&s->insert_keys,
 					1 + (op->csum ? 1 : 0),
 					op->c))
 			continue_at(cl, bch_data_insert_keys, bcache_wq);
 
-		k = op->keys.top;
+		k = s->insert_keys.top;
 		bkey_init(k);
 		SET_KEY_INODE(k, op->inode);
 		SET_KEY_OFFSET(k, bio->bi_sector);
@@ -570,7 +572,7 @@ static void bch_data_insert_start(struct closure *cl)
 			bio_csum(n, k);
 
 		trace_bcache_cache_insert(k);
-		bch_keylist_push(&op->keys);
+		bch_keylist_push(&s->insert_keys);
 
 		n->bi_rw |= REQ_WRITE;
 		bch_submit_bbio(n, op->c, k, 0);
@@ -605,7 +607,7 @@ err:
 		op->insert_data_done = true;
 		bio_put(bio);
 
-		if (!bch_keylist_empty(&op->keys))
+		if (!bch_keylist_empty(&s->insert_keys))
 			continue_at(cl, bch_data_insert_keys, bcache_wq);
 		else
 			closure_return(cl);
@@ -634,8 +636,9 @@ err:
 void bch_data_insert(struct closure *cl)
 {
 	struct btree_op *op = container_of(cl, struct btree_op, cl);
+	struct search *s = container_of(op, struct search, op);
 
-	bch_keylist_init(&op->keys);
+	bch_keylist_init(&s->insert_keys);
 	bio_get(op->cache_bio);
 	bch_data_insert_start(cl);
 }
@@ -724,9 +727,11 @@ static void search_free(struct closure *cl)
 
 static struct search *search_alloc(struct bio *bio, struct bcache_device *d)
 {
+	struct search *s;
 	struct bio_vec *bv;
-	struct search *s = mempool_alloc(d->c->search, GFP_NOIO);
-	memset(s, 0, offsetof(struct search, op.keys));
+
+	s = mempool_alloc(d->c->search, GFP_NOIO);
+	memset(s, 0, offsetof(struct search, insert_keys));
 
 	__closure_init(&s->cl, NULL);
 
diff --git a/drivers/md/bcache/request.h b/drivers/md/bcache/request.h
index 1f1b59d38db5..7d02ac5f936e 100644
--- a/drivers/md/bcache/request.h
+++ b/drivers/md/bcache/request.h
@@ -25,8 +25,10 @@ struct search {
 	short			error;
 	unsigned long		start_time;
 
-	/* Anything past op->keys won't get zeroed in do_bio_hook */
 	struct btree_op		op;
+
+	/* Anything past this point won't get zeroed in search_alloc() */
+	struct keylist		insert_keys;
 };
 
 void bch_cache_read_endio(struct bio *, int);
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index 8ffc8ec7231d..51dc709c9bf7 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -300,18 +300,21 @@ static void write_dirty_finish(struct closure *cl)
 	if (KEY_DIRTY(&w->key)) {
 		unsigned i;
 		struct btree_op op;
+		struct keylist keys;
+
 		bch_btree_op_init_stack(&op);
+		bch_keylist_init(&keys);
 
 		op.type = BTREE_REPLACE;
 		bkey_copy(&op.replace, &w->key);
 
 		SET_KEY_DIRTY(&w->key, false);
-		bch_keylist_add(&op.keys, &w->key);
+		bch_keylist_add(&keys, &w->key);
 
 		for (i = 0; i < KEY_PTRS(&w->key); i++)
 			atomic_inc(&PTR_BUCKET(dc->disk.c, &w->key, i)->pin);
 
-		bch_btree_insert(&op, dc->disk.c, &op.keys);
+		bch_btree_insert(&op, dc->disk.c, &keys);
 		closure_sync(&op.cl);
 
 		if (op.insert_collision)
-- 
cgit 


From e8e1d4682c8cb06dbcb5ef7bb851bf9bcb889c84 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 17:27:07 -0700
Subject: bcache: Convert try_wait to wait_queue_head_t

We never waited on c->try_wait asynchronously, so just use the standard
primitives.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bcache.h |   4 +-
 drivers/md/bcache/btree.c  | 150 ++++++++++++++++++---------------------------
 drivers/md/bcache/btree.h  |  10 ++-
 drivers/md/bcache/super.c  |  10 +--
 4 files changed, 75 insertions(+), 99 deletions(-)

diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index 10ce0c825fce..c1c44191afb1 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -735,8 +735,8 @@ struct cache_set {
 	 * basically a lock for this that we can wait on asynchronously. The
 	 * btree_root() macro releases the lock when it returns.
 	 */
-	struct closure		*try_harder;
-	struct closure_waitlist	try_wait;
+	struct task_struct	*try_harder;
+	wait_queue_head_t	try_wait;
 	uint64_t		try_harder_start;
 
 	/*
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 731cd8e3fe90..4d50f1e7006e 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -437,7 +437,7 @@ static void bch_btree_leaf_dirty(struct btree *b, struct btree_op *op)
 
 	set_btree_node_dirty(b);
 
-	if (op && op->journal) {
+	if (op->journal) {
 		if (w->journal &&
 		    journal_pin_cmp(b->c, w, op)) {
 			atomic_dec_bug(w->journal);
@@ -574,34 +574,35 @@ static struct btree *mca_bucket_alloc(struct cache_set *c,
 	return b;
 }
 
-static int mca_reap(struct btree *b, struct closure *cl, unsigned min_order)
+static int mca_reap(struct btree *b, unsigned min_order, bool flush)
 {
+	struct closure cl;
+
+	closure_init_stack(&cl);
 	lockdep_assert_held(&b->c->bucket_lock);
 
 	if (!down_write_trylock(&b->lock))
 		return -ENOMEM;
 
-	if (b->page_order < min_order) {
+	BUG_ON(btree_node_dirty(b) && !b->sets[0].data);
+
+	if (b->page_order < min_order ||
+	    (!flush &&
+	     (btree_node_dirty(b) ||
+	      atomic_read(&b->io.cl.remaining) != -1))) {
 		rw_unlock(true, b);
 		return -ENOMEM;
 	}
 
-	BUG_ON(btree_node_dirty(b) && !b->sets[0].data);
-
-	if (cl && btree_node_dirty(b))
-		bch_btree_node_write(b, NULL);
-
-	if (cl)
-		closure_wait_event_async(&b->io.wait, cl,
-			 atomic_read(&b->io.cl.remaining) == -1);
-
-	if (btree_node_dirty(b) ||
-	    !closure_is_unlocked(&b->io.cl) ||
-	    work_pending(&b->work.work)) {
-		rw_unlock(true, b);
-		return -EAGAIN;
+	if (btree_node_dirty(b)) {
+		bch_btree_node_write(b, &cl);
+		closure_sync(&cl);
 	}
 
+	/* wait for any in flight btree write */
+	closure_wait_event_sync(&b->io.wait, &cl,
+		atomic_read(&b->io.cl.remaining) == -1);
+
 	return 0;
 }
 
@@ -641,7 +642,7 @@ static unsigned long bch_mca_scan(struct shrinker *shrink,
 			break;
 
 		if (++i > 3 &&
-		    !mca_reap(b, NULL, 0)) {
+		    !mca_reap(b, 0, false)) {
 			mca_data_free(b);
 			rw_unlock(true, b);
 			freed++;
@@ -660,7 +661,7 @@ static unsigned long bch_mca_scan(struct shrinker *shrink,
 		list_rotate_left(&c->btree_cache);
 
 		if (!b->accessed &&
-		    !mca_reap(b, NULL, 0)) {
+		    !mca_reap(b, 0, false)) {
 			mca_bucket_free(b);
 			mca_data_free(b);
 			rw_unlock(true, b);
@@ -783,52 +784,27 @@ out:
 	return b;
 }
 
-static struct btree *mca_cannibalize(struct cache_set *c, struct bkey *k,
-				     int level, struct closure *cl)
+static struct btree *mca_cannibalize(struct cache_set *c, struct bkey *k)
 {
-	int ret = -ENOMEM;
-	struct btree *i;
+	struct btree *b;
 
 	trace_bcache_btree_cache_cannibalize(c);
 
-	if (!cl)
-		return ERR_PTR(-ENOMEM);
-
-	/*
-	 * Trying to free up some memory - i.e. reuse some btree nodes - may
-	 * require initiating IO to flush the dirty part of the node. If we're
-	 * running under generic_make_request(), that IO will never finish and
-	 * we would deadlock. Returning -EAGAIN causes the cache lookup code to
-	 * punt to workqueue and retry.
-	 */
-	if (current->bio_list)
-		return ERR_PTR(-EAGAIN);
-
-	if (c->try_harder && c->try_harder != cl) {
-		closure_wait_event_async(&c->try_wait, cl, !c->try_harder);
-		return ERR_PTR(-EAGAIN);
-	}
+	if (!c->try_harder) {
+		c->try_harder = current;
+		c->try_harder_start = local_clock();
+	} else if (c->try_harder != current)
+		return ERR_PTR(-ENOSPC);
 
-	c->try_harder = cl;
-	c->try_harder_start = local_clock();
-retry:
-	list_for_each_entry_reverse(i, &c->btree_cache, list) {
-		int r = mca_reap(i, cl, btree_order(k));
-		if (!r)
-			return i;
-		if (r != -ENOMEM)
-			ret = r;
-	}
+	list_for_each_entry_reverse(b, &c->btree_cache, list)
+		if (!mca_reap(b, btree_order(k), false))
+			return b;
 
-	if (ret == -EAGAIN &&
-	    closure_blocking(cl)) {
-		mutex_unlock(&c->bucket_lock);
-		closure_sync(cl);
-		mutex_lock(&c->bucket_lock);
-		goto retry;
-	}
+	list_for_each_entry_reverse(b, &c->btree_cache, list)
+		if (!mca_reap(b, btree_order(k), true))
+			return b;
 
-	return ERR_PTR(ret);
+	return ERR_PTR(-ENOMEM);
 }
 
 /*
@@ -839,18 +815,19 @@ retry:
  */
 void bch_cannibalize_unlock(struct cache_set *c, struct closure *cl)
 {
-	if (c->try_harder == cl) {
+	if (c->try_harder == current) {
 		bch_time_stats_update(&c->try_harder_time, c->try_harder_start);
 		c->try_harder = NULL;
-		__closure_wake_up(&c->try_wait);
+		wake_up(&c->try_wait);
 	}
 }
 
-static struct btree *mca_alloc(struct cache_set *c, struct bkey *k,
-			       int level, struct closure *cl)
+static struct btree *mca_alloc(struct cache_set *c, struct bkey *k, int level)
 {
 	struct btree *b;
 
+	BUG_ON(current->bio_list);
+
 	lockdep_assert_held(&c->bucket_lock);
 
 	if (mca_find(c, k))
@@ -860,14 +837,14 @@ static struct btree *mca_alloc(struct cache_set *c, struct bkey *k,
 	 * the list. Check if there's any freed nodes there:
 	 */
 	list_for_each_entry(b, &c->btree_cache_freeable, list)
-		if (!mca_reap(b, NULL, btree_order(k)))
+		if (!mca_reap(b, btree_order(k), false))
 			goto out;
 
 	/* We never free struct btree itself, just the memory that holds the on
 	 * disk node. Check the freed list before allocating a new one:
 	 */
 	list_for_each_entry(b, &c->btree_cache_freed, list)
-		if (!mca_reap(b, NULL, 0)) {
+		if (!mca_reap(b, 0, false)) {
 			mca_data_alloc(b, k, __GFP_NOWARN|GFP_NOIO);
 			if (!b->sets[0].data)
 				goto err;
@@ -901,7 +878,7 @@ err:
 	if (b)
 		rw_unlock(true, b);
 
-	b = mca_cannibalize(c, k, level, cl);
+	b = mca_cannibalize(c, k);
 	if (!IS_ERR(b))
 		goto out;
 
@@ -919,10 +896,9 @@ err:
  * level and op->lock.
  */
 struct btree *bch_btree_node_get(struct cache_set *c, struct bkey *k,
-				 int level, struct btree_op *op)
+				 int level, bool write)
 {
 	int i = 0;
-	bool write = level <= op->lock;
 	struct btree *b;
 
 	BUG_ON(level < 0);
@@ -934,7 +910,7 @@ retry:
 			return ERR_PTR(-EAGAIN);
 
 		mutex_lock(&c->bucket_lock);
-		b = mca_alloc(c, k, level, &op->cl);
+		b = mca_alloc(c, k, level);
 		mutex_unlock(&c->bucket_lock);
 
 		if (!b)
@@ -980,7 +956,7 @@ static void btree_node_prefetch(struct cache_set *c, struct bkey *k, int level)
 	struct btree *b;
 
 	mutex_lock(&c->bucket_lock);
-	b = mca_alloc(c, k, level, NULL);
+	b = mca_alloc(c, k, level);
 	mutex_unlock(&c->bucket_lock);
 
 	if (!IS_ERR_OR_NULL(b)) {
@@ -991,17 +967,12 @@ static void btree_node_prefetch(struct cache_set *c, struct bkey *k, int level)
 
 /* Btree alloc */
 
-static void btree_node_free(struct btree *b, struct btree_op *op)
+static void btree_node_free(struct btree *b)
 {
 	unsigned i;
 
 	trace_bcache_btree_node_free(b);
 
-	/*
-	 * The BUG_ON() in btree_node_get() implies that we must have a write
-	 * lock on parent to free or even invalidate a node
-	 */
-	BUG_ON(op->lock <= b->level);
 	BUG_ON(b == b->c->root);
 
 	if (btree_node_dirty(b))
@@ -1037,7 +1008,7 @@ retry:
 
 	SET_KEY_SIZE(&k.key, c->btree_pages * PAGE_SECTORS);
 
-	b = mca_alloc(c, &k.key, level, cl);
+	b = mca_alloc(c, &k.key, level);
 	if (IS_ERR(b))
 		goto err_free;
 
@@ -1173,8 +1144,7 @@ static int btree_gc_mark_node(struct btree *b, unsigned *keys,
 	return stale;
 }
 
-static struct btree *btree_gc_alloc(struct btree *b, struct bkey *k,
-				    struct btree_op *op)
+static struct btree *btree_gc_alloc(struct btree *b, struct bkey *k)
 {
 	/*
 	 * We block priorities from being written for the duration of garbage
@@ -1191,7 +1161,7 @@ static struct btree *btree_gc_alloc(struct btree *b, struct bkey *k,
 		memcpy(k->ptr, b->key.ptr,
 		       sizeof(uint64_t) * KEY_PTRS(&b->key));
 
-		btree_node_free(n, op);
+		btree_node_free(n);
 		up_write(&n->lock);
 	}
 
@@ -1211,8 +1181,8 @@ struct gc_merge_info {
 	unsigned	keys;
 };
 
-static void btree_gc_coalesce(struct btree *b, struct btree_op *op,
-			      struct gc_stat *gc, struct gc_merge_info *r)
+static void btree_gc_coalesce(struct btree *b, struct gc_stat *gc,
+			      struct gc_merge_info *r)
 {
 	unsigned nodes = 0, keys = 0, blocks;
 	int i;
@@ -1228,7 +1198,7 @@ static void btree_gc_coalesce(struct btree *b, struct btree_op *op,
 
 	for (i = nodes - 1; i >= 0; --i) {
 		if (r[i].b->written)
-			r[i].b = btree_gc_alloc(r[i].b, r[i].k, op);
+			r[i].b = btree_gc_alloc(r[i].b, r[i].k);
 
 		if (r[i].b->written)
 			return;
@@ -1292,7 +1262,7 @@ static void btree_gc_coalesce(struct btree *b, struct btree_op *op,
 		r[i - 1].keys	= n2->keys;
 	}
 
-	btree_node_free(r->b, op);
+	btree_node_free(r->b);
 	up_write(&r->b->lock);
 
 	trace_bcache_btree_gc_coalesce(nodes);
@@ -1324,7 +1294,7 @@ static int btree_gc_recurse(struct btree *b, struct btree_op *op,
 	memset(r, 0, sizeof(r));
 
 	while ((r->k = bch_next_recurse_key(b, &b->c->gc_done))) {
-		r->b = bch_btree_node_get(b->c, r->k, b->level - 1, op);
+		r->b = bch_btree_node_get(b->c, r->k, b->level - 1, true);
 
 		if (IS_ERR(r->b)) {
 			ret = PTR_ERR(r->b);
@@ -1337,7 +1307,7 @@ static int btree_gc_recurse(struct btree *b, struct btree_op *op,
 		if (!b->written &&
 		    (r->b->level || stale > 10 ||
 		     b->c->gc_always_rewrite))
-			r->b = btree_gc_alloc(r->b, r->k, op);
+			r->b = btree_gc_alloc(r->b, r->k);
 
 		if (r->b->level)
 			ret = btree_gc_recurse(r->b, op, writes, gc);
@@ -1350,7 +1320,7 @@ static int btree_gc_recurse(struct btree *b, struct btree_op *op,
 		bkey_copy_key(&b->c->gc_done, r->k);
 
 		if (!b->written)
-			btree_gc_coalesce(b, op, gc, r);
+			btree_gc_coalesce(b, gc, r);
 
 		if (r[GC_MERGE_NODES - 1].b)
 			write(r[GC_MERGE_NODES - 1].b);
@@ -1404,7 +1374,7 @@ static int bch_btree_gc_root(struct btree *b, struct btree_op *op,
 	if (!IS_ERR_OR_NULL(n)) {
 		closure_sync(&op->cl);
 		bch_btree_set_root(b);
-		btree_node_free(n, op);
+		btree_node_free(n);
 		rw_unlock(true, b);
 	}
 
@@ -2004,18 +1974,18 @@ static int btree_split(struct btree *b, struct btree_op *op,
 	}
 
 	rw_unlock(true, n1);
-	btree_node_free(b, op);
+	btree_node_free(b);
 
 	bch_time_stats_update(&b->c->btree_split_time, start_time);
 
 	return 0;
 err_free2:
 	__bkey_put(n2->c, &n2->key);
-	btree_node_free(n2, op);
+	btree_node_free(n2);
 	rw_unlock(true, n2);
 err_free1:
 	__bkey_put(n1->c, &n1->key);
-	btree_node_free(n1, op);
+	btree_node_free(n1);
 	rw_unlock(true, n1);
 err:
 	if (n3 == ERR_PTR(-EAGAIN) ||
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index 17b7a4e39c7e..72794ab8e8e5 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -326,7 +326,7 @@ static inline void rw_unlock(bool w, struct btree *b)
 ({									\
 	int _r, l = (b)->level - 1;					\
 	bool _w = l <= (op)->lock;					\
-	struct btree *_child = bch_btree_node_get((b)->c, key, l, op);	\
+	struct btree *_child = bch_btree_node_get((b)->c, key, l, _w);	\
 	if (!IS_ERR(_child)) {						\
 		_child->parent = (b);					\
 		_r = bch_btree_ ## fn(_child, op, ##__VA_ARGS__);	\
@@ -356,6 +356,11 @@ static inline void rw_unlock(bool w, struct btree *b)
 		}							\
 		rw_unlock(_w, _b);					\
 		bch_cannibalize_unlock(c, &(op)->cl);			\
+		if (_r == -ENOSPC) {					\
+			wait_event((c)->try_wait,			\
+				   !(c)->try_harder);			\
+			_r = -EINTR;					\
+		}							\
 	} while (_r == -EINTR);						\
 									\
 	_r;								\
@@ -375,8 +380,7 @@ void bch_btree_node_write(struct btree *, struct closure *);
 void bch_cannibalize_unlock(struct cache_set *, struct closure *);
 void bch_btree_set_root(struct btree *);
 struct btree *bch_btree_node_alloc(struct cache_set *, int, struct closure *);
-struct btree *bch_btree_node_get(struct cache_set *, struct bkey *,
-				int, struct btree_op *);
+struct btree *bch_btree_node_get(struct cache_set *, struct bkey *, int, bool);
 
 int bch_btree_insert_check_key(struct btree *, struct btree_op *,
 			       struct bkey *);
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index d3169c0652f8..9a164cd4058c 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1436,12 +1436,14 @@ struct cache_set *bch_cache_set_alloc(struct cache_sb *sb)
 
 	c->sort_crit_factor = int_sqrt(c->btree_pages);
 
-	mutex_init(&c->bucket_lock);
-	mutex_init(&c->sort_lock);
-	spin_lock_init(&c->sort_time_lock);
 	closure_init_unlocked(&c->sb_write);
+	mutex_init(&c->bucket_lock);
+	init_waitqueue_head(&c->try_wait);
 	closure_init_unlocked(&c->uuid_write);
+	spin_lock_init(&c->sort_time_lock);
+	mutex_init(&c->sort_lock);
 	spin_lock_init(&c->btree_read_time_lock);
+
 	bch_moving_init_cache_set(c);
 
 	INIT_LIST_HEAD(&c->list);
@@ -1529,7 +1531,7 @@ static void run_cache_set(struct cache_set *c)
 			goto err;
 
 		err = "error reading btree root";
-		c->root = bch_btree_node_get(c, k, j->btree_level, &op);
+		c->root = bch_btree_node_get(c, k, j->btree_level, true);
 		if (IS_ERR_OR_NULL(c->root))
 			goto err;
 
-- 
cgit 


From 35fcd848d72683141052aa9880542461577f2dbe Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 17:29:09 -0700
Subject: bcache: Convert bucket_wait to wait_queue_head_t

At one point we did do fancy asynchronous waiting stuff with
bucket_wait, but that's all gone (and bucket_wait is used a lot less
than it used to be). So use the standard primitives.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/alloc.c   | 82 ++++++++++++++++++++++++++-------------------
 drivers/md/bcache/bcache.h  |  8 ++---
 drivers/md/bcache/btree.c   | 25 ++++++--------
 drivers/md/bcache/btree.h   |  6 ++--
 drivers/md/bcache/request.c |  9 ++---
 drivers/md/bcache/super.c   |  7 ++--
 6 files changed, 70 insertions(+), 67 deletions(-)

diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c
index e033b0203b68..1b64e662e81b 100644
--- a/drivers/md/bcache/alloc.c
+++ b/drivers/md/bcache/alloc.c
@@ -339,7 +339,7 @@ static int bch_allocator_thread(void *arg)
 			allocator_wait(ca, !fifo_full(&ca->free));
 
 			fifo_push(&ca->free, bucket);
-			closure_wake_up(&ca->set->bucket_wait);
+			wake_up(&ca->set->bucket_wait);
 		}
 
 		/*
@@ -365,16 +365,41 @@ static int bch_allocator_thread(void *arg)
 	}
 }
 
-long bch_bucket_alloc(struct cache *ca, unsigned watermark, struct closure *cl)
+long bch_bucket_alloc(struct cache *ca, unsigned watermark, bool wait)
 {
-	long r = -1;
-again:
+	DEFINE_WAIT(w);
+	struct bucket *b;
+	long r;
+
+	/* fastpath */
+	if (fifo_used(&ca->free) > ca->watermark[watermark]) {
+		fifo_pop(&ca->free, r);
+		goto out;
+	}
+
+	if (!wait)
+		return -1;
+
+	while (1) {
+		if (fifo_used(&ca->free) > ca->watermark[watermark]) {
+			fifo_pop(&ca->free, r);
+			break;
+		}
+
+		prepare_to_wait(&ca->set->bucket_wait, &w,
+				TASK_UNINTERRUPTIBLE);
+
+		mutex_unlock(&ca->set->bucket_lock);
+		schedule();
+		mutex_lock(&ca->set->bucket_lock);
+	}
+
+	finish_wait(&ca->set->bucket_wait, &w);
+out:
 	wake_up_process(ca->alloc_thread);
 
-	if (fifo_used(&ca->free) > ca->watermark[watermark] &&
-	    fifo_pop(&ca->free, r)) {
-		struct bucket *b = ca->buckets + r;
 #ifdef CONFIG_BCACHE_EDEBUG
+	{
 		size_t iter;
 		long i;
 
@@ -387,36 +412,23 @@ again:
 			BUG_ON(i == r);
 		fifo_for_each(i, &ca->unused, iter)
 			BUG_ON(i == r);
-#endif
-		BUG_ON(atomic_read(&b->pin) != 1);
-
-		SET_GC_SECTORS_USED(b, ca->sb.bucket_size);
-
-		if (watermark <= WATERMARK_METADATA) {
-			SET_GC_MARK(b, GC_MARK_METADATA);
-			b->prio = BTREE_PRIO;
-		} else {
-			SET_GC_MARK(b, GC_MARK_RECLAIMABLE);
-			b->prio = INITIAL_PRIO;
-		}
-
-		return r;
 	}
+#endif
+	b = ca->buckets + r;
 
-	trace_bcache_alloc_fail(ca);
+	BUG_ON(atomic_read(&b->pin) != 1);
 
-	if (cl) {
-		closure_wait(&ca->set->bucket_wait, cl);
+	SET_GC_SECTORS_USED(b, ca->sb.bucket_size);
 
-		if (closure_blocking(cl)) {
-			mutex_unlock(&ca->set->bucket_lock);
-			closure_sync(cl);
-			mutex_lock(&ca->set->bucket_lock);
-			goto again;
-		}
+	if (watermark <= WATERMARK_METADATA) {
+		SET_GC_MARK(b, GC_MARK_METADATA);
+		b->prio = BTREE_PRIO;
+	} else {
+		SET_GC_MARK(b, GC_MARK_RECLAIMABLE);
+		b->prio = INITIAL_PRIO;
 	}
 
-	return -1;
+	return r;
 }
 
 void bch_bucket_free(struct cache_set *c, struct bkey *k)
@@ -433,7 +445,7 @@ void bch_bucket_free(struct cache_set *c, struct bkey *k)
 }
 
 int __bch_bucket_alloc_set(struct cache_set *c, unsigned watermark,
-			   struct bkey *k, int n, struct closure *cl)
+			   struct bkey *k, int n, bool wait)
 {
 	int i;
 
@@ -446,7 +458,7 @@ int __bch_bucket_alloc_set(struct cache_set *c, unsigned watermark,
 
 	for (i = 0; i < n; i++) {
 		struct cache *ca = c->cache_by_alloc[i];
-		long b = bch_bucket_alloc(ca, watermark, cl);
+		long b = bch_bucket_alloc(ca, watermark, wait);
 
 		if (b == -1)
 			goto err;
@@ -466,11 +478,11 @@ err:
 }
 
 int bch_bucket_alloc_set(struct cache_set *c, unsigned watermark,
-			 struct bkey *k, int n, struct closure *cl)
+			 struct bkey *k, int n, bool wait)
 {
 	int ret;
 	mutex_lock(&c->bucket_lock);
-	ret = __bch_bucket_alloc_set(c, watermark, k, n, cl);
+	ret = __bch_bucket_alloc_set(c, watermark, k, n, wait);
 	mutex_unlock(&c->bucket_lock);
 	return ret;
 }
diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index c1c44191afb1..d3520748bc27 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -750,7 +750,7 @@ struct cache_set {
 	 * written.
 	 */
 	atomic_t		prio_blocked;
-	struct closure_waitlist	bucket_wait;
+	wait_queue_head_t	bucket_wait;
 
 	/*
 	 * For any bio we don't skip we subtract the number of sectors from
@@ -1162,13 +1162,13 @@ uint8_t bch_inc_gen(struct cache *, struct bucket *);
 void bch_rescale_priorities(struct cache_set *, int);
 bool bch_bucket_add_unused(struct cache *, struct bucket *);
 
-long bch_bucket_alloc(struct cache *, unsigned, struct closure *);
+long bch_bucket_alloc(struct cache *, unsigned, bool);
 void bch_bucket_free(struct cache_set *, struct bkey *);
 
 int __bch_bucket_alloc_set(struct cache_set *, unsigned,
-			   struct bkey *, int, struct closure *);
+			   struct bkey *, int, bool);
 int bch_bucket_alloc_set(struct cache_set *, unsigned,
-			 struct bkey *, int, struct closure *);
+			 struct bkey *, int, bool);
 
 __printf(2, 3)
 bool bch_cache_set_error(struct cache_set *, const char *, ...);
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 4d50f1e7006e..935d90df397b 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -813,7 +813,7 @@ static struct btree *mca_cannibalize(struct cache_set *c, struct bkey *k)
  * cannibalize_bucket() will take. This means every time we unlock the root of
  * the btree, we need to release this lock if we have it held.
  */
-void bch_cannibalize_unlock(struct cache_set *c, struct closure *cl)
+void bch_cannibalize_unlock(struct cache_set *c)
 {
 	if (c->try_harder == current) {
 		bch_time_stats_update(&c->try_harder_time, c->try_harder_start);
@@ -995,15 +995,14 @@ static void btree_node_free(struct btree *b)
 	mutex_unlock(&b->c->bucket_lock);
 }
 
-struct btree *bch_btree_node_alloc(struct cache_set *c, int level,
-				   struct closure *cl)
+struct btree *bch_btree_node_alloc(struct cache_set *c, int level)
 {
 	BKEY_PADDED(key) k;
 	struct btree *b = ERR_PTR(-EAGAIN);
 
 	mutex_lock(&c->bucket_lock);
 retry:
-	if (__bch_bucket_alloc_set(c, WATERMARK_METADATA, &k.key, 1, cl))
+	if (__bch_bucket_alloc_set(c, WATERMARK_METADATA, &k.key, 1, true))
 		goto err;
 
 	SET_KEY_SIZE(&k.key, c->btree_pages * PAGE_SECTORS);
@@ -1036,10 +1035,9 @@ err:
 	return b;
 }
 
-static struct btree *btree_node_alloc_replacement(struct btree *b,
-						  struct closure *cl)
+static struct btree *btree_node_alloc_replacement(struct btree *b)
 {
-	struct btree *n = bch_btree_node_alloc(b->c, b->level, cl);
+	struct btree *n = bch_btree_node_alloc(b->c, b->level);
 	if (!IS_ERR_OR_NULL(n))
 		bch_btree_sort_into(b, n);
 
@@ -1152,7 +1150,7 @@ static struct btree *btree_gc_alloc(struct btree *b, struct bkey *k)
 	 * bch_bucket_alloc_set(), or we'd risk deadlock - so we don't pass it
 	 * our closure.
 	 */
-	struct btree *n = btree_node_alloc_replacement(b, NULL);
+	struct btree *n = btree_node_alloc_replacement(b);
 
 	if (!IS_ERR_OR_NULL(n)) {
 		swap(b, n);
@@ -1359,7 +1357,7 @@ static int bch_btree_gc_root(struct btree *b, struct btree_op *op,
 	int ret = 0, stale = btree_gc_mark_node(b, &keys, gc);
 
 	if (b->level || stale > 10)
-		n = btree_node_alloc_replacement(b, NULL);
+		n = btree_node_alloc_replacement(b);
 
 	if (!IS_ERR_OR_NULL(n))
 		swap(b, n);
@@ -1882,10 +1880,7 @@ static int btree_split(struct btree *b, struct btree_op *op,
 	struct btree *n1, *n2 = NULL, *n3 = NULL;
 	uint64_t start_time = local_clock();
 
-	if (b->level)
-		set_closure_blocking(&op->cl);
-
-	n1 = btree_node_alloc_replacement(b, &op->cl);
+	n1 = btree_node_alloc_replacement(b);
 	if (IS_ERR(n1))
 		goto err;
 
@@ -1896,12 +1891,12 @@ static int btree_split(struct btree *b, struct btree_op *op,
 
 		trace_bcache_btree_node_split(b, n1->sets[0].data->keys);
 
-		n2 = bch_btree_node_alloc(b->c, b->level, &op->cl);
+		n2 = bch_btree_node_alloc(b->c, b->level);
 		if (IS_ERR(n2))
 			goto err_free1;
 
 		if (!b->parent) {
-			n3 = bch_btree_node_alloc(b->c, b->level + 1, &op->cl);
+			n3 = bch_btree_node_alloc(b->c, b->level + 1);
 			if (IS_ERR(n3))
 				goto err_free2;
 		}
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index 72794ab8e8e5..d691d954730e 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -355,7 +355,7 @@ static inline void rw_unlock(bool w, struct btree *b)
 			_r = bch_btree_ ## fn(_b, op, ##__VA_ARGS__);	\
 		}							\
 		rw_unlock(_w, _b);					\
-		bch_cannibalize_unlock(c, &(op)->cl);			\
+		bch_cannibalize_unlock(c);				\
 		if (_r == -ENOSPC) {					\
 			wait_event((c)->try_wait,			\
 				   !(c)->try_harder);			\
@@ -377,9 +377,9 @@ static inline bool should_split(struct btree *b)
 void bch_btree_node_read(struct btree *);
 void bch_btree_node_write(struct btree *, struct closure *);
 
-void bch_cannibalize_unlock(struct cache_set *, struct closure *);
+void bch_cannibalize_unlock(struct cache_set *);
 void bch_btree_set_root(struct btree *);
-struct btree *bch_btree_node_alloc(struct cache_set *, int, struct closure *);
+struct btree *bch_btree_node_alloc(struct cache_set *, int);
 struct btree *bch_btree_node_get(struct cache_set *, struct bkey *, int, bool);
 
 int bch_btree_insert_check_key(struct btree *, struct btree_op *,
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index d85c7001df61..26d18f4bf4a0 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -350,14 +350,8 @@ static bool bch_alloc_sectors(struct bkey *k, unsigned sectors,
 	struct cache_set *c = s->op.c;
 	struct open_bucket *b;
 	BKEY_PADDED(key) alloc;
-	struct closure cl, *w = NULL;
 	unsigned i;
 
-	if (s->writeback) {
-		closure_init_stack(&cl);
-		w = &cl;
-	}
-
 	/*
 	 * We might have to allocate a new bucket, which we can't do with a
 	 * spinlock held. So if we have to allocate, we drop the lock, allocate
@@ -375,7 +369,8 @@ static bool bch_alloc_sectors(struct bkey *k, unsigned sectors,
 
 		spin_unlock(&c->data_bucket_lock);
 
-		if (bch_bucket_alloc_set(c, watermark, &alloc.key, 1, w))
+		if (bch_bucket_alloc_set(c, watermark, &alloc.key,
+					 1, s->writeback))
 			return false;
 
 		spin_lock(&c->data_bucket_lock);
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 9a164cd4058c..84398a82fbe3 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -427,7 +427,7 @@ static int __uuid_write(struct cache_set *c)
 
 	lockdep_assert_held(&bch_register_lock);
 
-	if (bch_bucket_alloc_set(c, WATERMARK_METADATA, &k.key, 1, &cl))
+	if (bch_bucket_alloc_set(c, WATERMARK_METADATA, &k.key, 1, true))
 		return 1;
 
 	SET_KEY_SIZE(&k.key, c->sb.bucket_size);
@@ -565,7 +565,7 @@ void bch_prio_write(struct cache *ca)
 		p->magic	= pset_magic(ca);
 		p->csum		= bch_crc64(&p->magic, bucket_bytes(ca) - 8);
 
-		bucket = bch_bucket_alloc(ca, WATERMARK_PRIO, &cl);
+		bucket = bch_bucket_alloc(ca, WATERMARK_PRIO, true);
 		BUG_ON(bucket == -1);
 
 		mutex_unlock(&ca->set->bucket_lock);
@@ -1439,6 +1439,7 @@ struct cache_set *bch_cache_set_alloc(struct cache_sb *sb)
 	closure_init_unlocked(&c->sb_write);
 	mutex_init(&c->bucket_lock);
 	init_waitqueue_head(&c->try_wait);
+	init_waitqueue_head(&c->bucket_wait);
 	closure_init_unlocked(&c->uuid_write);
 	spin_lock_init(&c->sort_time_lock);
 	mutex_init(&c->sort_lock);
@@ -1608,7 +1609,7 @@ static void run_cache_set(struct cache_set *c)
 			goto err_unlock_gc;
 
 		err = "cannot allocate new btree root";
-		c->root = bch_btree_node_alloc(c, 0, &op.cl);
+		c->root = bch_btree_node_alloc(c, 0);
 		if (IS_ERR_OR_NULL(c->root))
 			goto err_unlock_gc;
 
-- 
cgit 


From 72a44517f3ca3725dc86081d105457df46448679 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Thu, 24 Oct 2013 17:19:26 -0700
Subject: bcache: Convert gc to a kthread

We needed a dedicated rescuer workqueue for gc anyways... and gc was
conceptually a dedicated thread, just one that wasn't running all the
time. Switch it to a dedicated thread to make the code a bit more
straightforward.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/alloc.c    |  6 +++---
 drivers/md/bcache/bcache.h   |  9 ++++----
 drivers/md/bcache/btree.c    | 50 ++++++++++++++++++++++++++++++--------------
 drivers/md/bcache/btree.h    | 10 +++++++--
 drivers/md/bcache/movinggc.c | 35 +++++++++++++------------------
 drivers/md/bcache/request.c  |  2 +-
 drivers/md/bcache/super.c    | 20 ++++++++----------
 drivers/md/bcache/sysfs.c    |  2 +-
 8 files changed, 74 insertions(+), 60 deletions(-)

diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c
index 1b64e662e81b..b9bd5866055d 100644
--- a/drivers/md/bcache/alloc.c
+++ b/drivers/md/bcache/alloc.c
@@ -210,7 +210,7 @@ static void invalidate_buckets_lru(struct cache *ca)
 			 * multiple times when it can't do anything
 			 */
 			ca->invalidate_needs_gc = 1;
-			bch_queue_gc(ca->set);
+			wake_up_gc(ca->set);
 			return;
 		}
 
@@ -235,7 +235,7 @@ static void invalidate_buckets_fifo(struct cache *ca)
 
 		if (++checked >= ca->sb.nbuckets) {
 			ca->invalidate_needs_gc = 1;
-			bch_queue_gc(ca->set);
+			wake_up_gc(ca->set);
 			return;
 		}
 	}
@@ -260,7 +260,7 @@ static void invalidate_buckets_random(struct cache *ca)
 
 		if (++checked >= ca->sb.nbuckets / 2) {
 			ca->invalidate_needs_gc = 1;
-			bch_queue_gc(ca->set);
+			wake_up_gc(ca->set);
 			return;
 		}
 	}
diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index d3520748bc27..09410eb07d82 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -773,7 +773,7 @@ struct cache_set {
 	struct gc_stat		gc_stats;
 	size_t			nbuckets;
 
-	struct closure_with_waitlist gc;
+	struct task_struct	*gc_thread;
 	/* Where in the btree gc currently is */
 	struct bkey		gc_done;
 
@@ -786,11 +786,10 @@ struct cache_set {
 	/* Counts how many sectors bio_insert has added to the cache */
 	atomic_t		sectors_to_gc;
 
-	struct closure		moving_gc;
-	struct closure_waitlist	moving_gc_wait;
+	wait_queue_head_t	moving_gc_wait;
 	struct keybuf		moving_gc_keys;
 	/* Number of moving GC bios in flight */
-	atomic_t		in_flight;
+	struct semaphore	moving_in_flight;
 
 	struct btree		*root;
 
@@ -1176,7 +1175,7 @@ bool bch_cache_set_error(struct cache_set *, const char *, ...);
 void bch_prio_write(struct cache *);
 void bch_write_bdev_super(struct cached_dev *, struct closure *);
 
-extern struct workqueue_struct *bcache_wq, *bch_gc_wq;
+extern struct workqueue_struct *bcache_wq;
 extern const char * const bch_cache_modes[];
 extern struct mutex bch_register_lock;
 extern struct list_head bch_cache_sets;
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 935d90df397b..17bfd87fc8f4 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -28,7 +28,9 @@
 
 #include <linux/slab.h>
 #include <linux/bitops.h>
+#include <linux/freezer.h>
 #include <linux/hash.h>
+#include <linux/kthread.h>
 #include <linux/prefetch.h>
 #include <linux/random.h>
 #include <linux/rcupdate.h>
@@ -105,7 +107,6 @@ static const char *op_type(struct btree_op *op)
 #define PTR_HASH(c, k)							\
 	(((k)->ptr[0] >> c->bucket_bits) | PTR_GEN(k, 0))
 
-struct workqueue_struct *bch_gc_wq;
 static struct workqueue_struct *btree_io_wq;
 
 void bch_btree_op_init_stack(struct btree_op *op)
@@ -732,12 +733,9 @@ int bch_btree_cache_alloc(struct cache_set *c)
 {
 	unsigned i;
 
-	/* XXX: doesn't check for errors */
-
-	closure_init_unlocked(&c->gc);
-
 	for (i = 0; i < mca_reserve(c); i++)
-		mca_bucket_alloc(c, &ZERO_KEY, GFP_KERNEL);
+		if (!mca_bucket_alloc(c, &ZERO_KEY, GFP_KERNEL))
+			return -ENOMEM;
 
 	list_splice_init(&c->btree_cache,
 			 &c->btree_cache_freeable);
@@ -1456,9 +1454,8 @@ size_t bch_btree_gc_finish(struct cache_set *c)
 	return available;
 }
 
-static void bch_btree_gc(struct closure *cl)
+static void bch_btree_gc(struct cache_set *c)
 {
-	struct cache_set *c = container_of(cl, struct cache_set, gc.cl);
 	int ret;
 	unsigned long available;
 	struct gc_stat stats;
@@ -1483,7 +1480,7 @@ static void bch_btree_gc(struct closure *cl)
 
 	if (ret) {
 		pr_warn("gc failed!");
-		continue_at(cl, bch_btree_gc, bch_gc_wq);
+		return;
 	}
 
 	/* Possibly wait for new UUIDs or whatever to hit disk */
@@ -1505,12 +1502,35 @@ static void bch_btree_gc(struct closure *cl)
 
 	trace_bcache_gc_end(c);
 
-	continue_at(cl, bch_moving_gc, bch_gc_wq);
+	bch_moving_gc(c);
+}
+
+static int bch_gc_thread(void *arg)
+{
+	struct cache_set *c = arg;
+
+	while (1) {
+		bch_btree_gc(c);
+
+		set_current_state(TASK_INTERRUPTIBLE);
+		if (kthread_should_stop())
+			break;
+
+		try_to_freeze();
+		schedule();
+	}
+
+	return 0;
 }
 
-void bch_queue_gc(struct cache_set *c)
+int bch_gc_thread_start(struct cache_set *c)
 {
-	closure_trylock_call(&c->gc.cl, bch_btree_gc, bch_gc_wq, &c->cl);
+	c->gc_thread = kthread_create(bch_gc_thread, c, "bcache_gc");
+	if (IS_ERR(c->gc_thread))
+		return PTR_ERR(c->gc_thread);
+
+	set_task_state(c->gc_thread, TASK_INTERRUPTIBLE);
+	return 0;
 }
 
 /* Initial partial gc */
@@ -2480,14 +2500,12 @@ void bch_btree_exit(void)
 {
 	if (btree_io_wq)
 		destroy_workqueue(btree_io_wq);
-	if (bch_gc_wq)
-		destroy_workqueue(bch_gc_wq);
 }
 
 int __init bch_btree_init(void)
 {
-	if (!(bch_gc_wq = create_singlethread_workqueue("bch_btree_gc")) ||
-	    !(btree_io_wq = create_singlethread_workqueue("bch_btree_io")))
+	btree_io_wq = create_singlethread_workqueue("bch_btree_io");
+	if (!btree_io_wq)
 		return -ENOMEM;
 
 	return 0;
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index d691d954730e..fa9641aaed39 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -388,12 +388,18 @@ int bch_btree_insert(struct btree_op *, struct cache_set *, struct keylist *);
 
 int bch_btree_search_recurse(struct btree *, struct btree_op *);
 
-void bch_queue_gc(struct cache_set *);
+int bch_gc_thread_start(struct cache_set *);
 size_t bch_btree_gc_finish(struct cache_set *);
-void bch_moving_gc(struct closure *);
+void bch_moving_gc(struct cache_set *);
 int bch_btree_check(struct cache_set *, struct btree_op *);
 uint8_t __bch_btree_mark_key(struct cache_set *, int, struct bkey *);
 
+static inline void wake_up_gc(struct cache_set *c)
+{
+	if (c->gc_thread)
+		wake_up_process(c->gc_thread);
+}
+
 void bch_keybuf_init(struct keybuf *);
 void bch_refill_keybuf(struct cache_set *, struct keybuf *, struct bkey *,
 		       keybuf_pred_fn *);
diff --git a/drivers/md/bcache/movinggc.c b/drivers/md/bcache/movinggc.c
index 2c42377a65aa..6ba050456ec8 100644
--- a/drivers/md/bcache/movinggc.c
+++ b/drivers/md/bcache/movinggc.c
@@ -57,8 +57,7 @@ static void write_moving_finish(struct closure *cl)
 
 	bch_keybuf_del(&io->s.op.c->moving_gc_keys, io->w);
 
-	atomic_dec_bug(&io->s.op.c->in_flight);
-	closure_wake_up(&io->s.op.c->moving_gc_wait);
+	up(&io->s.op.c->moving_in_flight);
 
 	closure_return_with_destructor(cl, moving_io_destructor);
 }
@@ -113,7 +112,7 @@ static void write_moving(struct closure *cl)
 		bch_data_insert(&s->op.cl);
 	}
 
-	continue_at(cl, write_moving_finish, bch_gc_wq);
+	continue_at(cl, write_moving_finish, system_wq);
 }
 
 static void read_moving_submit(struct closure *cl)
@@ -124,15 +123,17 @@ static void read_moving_submit(struct closure *cl)
 
 	bch_submit_bbio(bio, s->op.c, &io->w->key, 0);
 
-	continue_at(cl, write_moving, bch_gc_wq);
+	continue_at(cl, write_moving, system_wq);
 }
 
-static void read_moving(struct closure *cl)
+static void read_moving(struct cache_set *c)
 {
-	struct cache_set *c = container_of(cl, struct cache_set, moving_gc);
 	struct keybuf_key *w;
 	struct moving_io *io;
 	struct bio *bio;
+	struct closure cl;
+
+	closure_init_stack(&cl);
 
 	/* XXX: if we error, background writeback could stall indefinitely */
 
@@ -164,13 +165,8 @@ static void read_moving(struct closure *cl)
 
 		trace_bcache_gc_copy(&w->key);
 
-		closure_call(&io->s.cl, read_moving_submit, NULL, &c->gc.cl);
-
-		if (atomic_inc_return(&c->in_flight) >= 64) {
-			closure_wait_event(&c->moving_gc_wait, cl,
-					   atomic_read(&c->in_flight) < 64);
-			continue_at(cl, read_moving, bch_gc_wq);
-		}
+		down(&c->moving_in_flight);
+		closure_call(&io->s.cl, read_moving_submit, NULL, &cl);
 	}
 
 	if (0) {
@@ -180,7 +176,7 @@ err:		if (!IS_ERR_OR_NULL(w->private))
 		bch_keybuf_del(&c->moving_gc_keys, w);
 	}
 
-	closure_return(cl);
+	closure_sync(&cl);
 }
 
 static bool bucket_cmp(struct bucket *l, struct bucket *r)
@@ -193,15 +189,14 @@ static unsigned bucket_heap_top(struct cache *ca)
 	return GC_SECTORS_USED(heap_peek(&ca->heap));
 }
 
-void bch_moving_gc(struct closure *cl)
+void bch_moving_gc(struct cache_set *c)
 {
-	struct cache_set *c = container_of(cl, struct cache_set, gc.cl);
 	struct cache *ca;
 	struct bucket *b;
 	unsigned i;
 
 	if (!c->copy_gc_enabled)
-		closure_return(cl);
+		return;
 
 	mutex_lock(&c->bucket_lock);
 
@@ -242,13 +237,11 @@ void bch_moving_gc(struct closure *cl)
 
 	c->moving_gc_keys.last_scanned = ZERO_KEY;
 
-	closure_init(&c->moving_gc, cl);
-	read_moving(&c->moving_gc);
-
-	closure_return(cl);
+	read_moving(c);
 }
 
 void bch_moving_init_cache_set(struct cache_set *c)
 {
 	bch_keybuf_init(&c->moving_gc_keys);
+	sema_init(&c->moving_in_flight, 64);
 }
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 26d18f4bf4a0..f779eb420d69 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -520,7 +520,7 @@ static void bch_data_insert_start(struct closure *cl)
 
 	if (atomic_sub_return(bio_sectors(bio), &op->c->sectors_to_gc) < 0) {
 		set_gc_sectors(op->c);
-		bch_queue_gc(op->c);
+		wake_up_gc(op->c);
 	}
 
 	/*
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 84398a82fbe3..f89e2296bde1 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1342,6 +1342,9 @@ static void cache_set_flush(struct closure *cl)
 	kobject_put(&c->internal);
 	kobject_del(&c->kobj);
 
+	if (c->gc_thread)
+		kthread_stop(c->gc_thread);
+
 	if (!IS_ERR_OR_NULL(c->root))
 		list_add(&c->root->list, &c->btree_cache);
 
@@ -1579,8 +1582,6 @@ static void run_cache_set(struct cache_set *c)
 		bch_journal_replay(c, &journal, &op);
 	} else {
 		pr_notice("invalidating existing data");
-		/* Don't want invalidate_buckets() to queue a gc yet */
-		closure_lock(&c->gc, NULL);
 
 		for_each_cache(ca, c, i) {
 			unsigned j;
@@ -1606,12 +1607,12 @@ static void run_cache_set(struct cache_set *c)
 
 		err = "cannot allocate new UUID bucket";
 		if (__uuid_write(c))
-			goto err_unlock_gc;
+			goto err;
 
 		err = "cannot allocate new btree root";
 		c->root = bch_btree_node_alloc(c, 0);
 		if (IS_ERR_OR_NULL(c->root))
-			goto err_unlock_gc;
+			goto err;
 
 		bkey_copy_key(&c->root->key, &MAX_KEY);
 		bch_btree_node_write(c->root, &op.cl);
@@ -1628,12 +1629,12 @@ static void run_cache_set(struct cache_set *c)
 
 		bch_journal_next(&c->journal);
 		bch_journal_meta(c, &op.cl);
-
-		/* Unlock */
-		closure_set_stopped(&c->gc.cl);
-		closure_put(&c->gc.cl);
 	}
 
+	err = "error starting gc thread";
+	if (bch_gc_thread_start(c))
+		goto err;
+
 	closure_sync(&op.cl);
 	c->sb.last_mount = get_seconds();
 	bcache_write_super(c);
@@ -1644,9 +1645,6 @@ static void run_cache_set(struct cache_set *c)
 	flash_devs_run(c);
 
 	return;
-err_unlock_gc:
-	closure_set_stopped(&c->gc.cl);
-	closure_put(&c->gc.cl);
 err:
 	closure_sync(&op.cl);
 	/* XXX: test this, it's broken */
diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
index b3a66f17231d..ab286b9b5e40 100644
--- a/drivers/md/bcache/sysfs.c
+++ b/drivers/md/bcache/sysfs.c
@@ -566,7 +566,7 @@ STORE(__bch_cache_set)
 	}
 
 	if (attr == &sysfs_trigger_gc)
-		bch_queue_gc(c);
+		wake_up_gc(c);
 
 	if (attr == &sysfs_prune_cache) {
 		struct shrink_control sc;
-- 
cgit 


From 5e6926daac267dd99552ae613f041a9e88bbf258 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 17:50:06 -0700
Subject: bcache: Convert writeback to a kthread

This simplifies the writeback flow control quite a bit - previously, it
was conceptually two coroutines, refill_dirty() and read_dirty(). This
makes the code quite a bit more straightforward.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bcache.h    |  10 +-
 drivers/md/bcache/super.c     |   3 +-
 drivers/md/bcache/writeback.c | 371 ++++++++++++++++++++----------------------
 drivers/md/bcache/writeback.h |  25 ++-
 4 files changed, 203 insertions(+), 206 deletions(-)

diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index 09410eb07d82..674e2f42e778 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -509,7 +509,7 @@ struct cached_dev {
 
 	/* Limit number of writeback bios in flight */
 	struct semaphore	in_flight;
-	struct closure_with_timer writeback;
+	struct task_struct	*writeback_thread;
 
 	struct keybuf		writeback_keys;
 
@@ -1038,7 +1038,11 @@ static inline void bkey_init(struct bkey *k)
 
 #define KEY_START(k)		(KEY_OFFSET(k) - KEY_SIZE(k))
 #define START_KEY(k)		KEY(KEY_INODE(k), KEY_START(k), 0)
-#define MAX_KEY			KEY(~(~0 << 20), ((uint64_t) ~0) >> 1, 0)
+
+#define MAX_KEY_INODE		(~(~0 << 20))
+#define MAX_KEY_OFFSET		(((uint64_t) ~0) >> 1)
+#define MAX_KEY			KEY(MAX_KEY_INODE, MAX_KEY_OFFSET, 0)
+
 #define ZERO_KEY		KEY(0, 0, 0)
 
 /*
@@ -1214,8 +1218,6 @@ int bch_cache_allocator_init(struct cache *ca);
 
 void bch_debug_exit(void);
 int bch_debug_init(struct kobject *);
-void bch_writeback_exit(void);
-int bch_writeback_init(void);
 void bch_request_exit(void);
 int bch_request_init(void);
 void bch_btree_exit(void);
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index f89e2296bde1..b79dd5a6679e 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1029,6 +1029,7 @@ static void cached_dev_free(struct closure *cl)
 	struct cached_dev *dc = container_of(cl, struct cached_dev, disk.cl);
 
 	cancel_delayed_work_sync(&dc->writeback_rate_update);
+	kthread_stop(dc->writeback_thread);
 
 	mutex_lock(&bch_register_lock);
 
@@ -2006,7 +2007,6 @@ static struct notifier_block reboot = {
 static void bcache_exit(void)
 {
 	bch_debug_exit();
-	bch_writeback_exit();
 	bch_request_exit();
 	bch_btree_exit();
 	if (bcache_kobj)
@@ -2039,7 +2039,6 @@ static int __init bcache_init(void)
 	    sysfs_create_files(bcache_kobj, files) ||
 	    bch_btree_init() ||
 	    bch_request_init() ||
-	    bch_writeback_init() ||
 	    bch_debug_init(bcache_kobj))
 		goto err;
 
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index 51dc709c9bf7..4392f3f38d62 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -11,18 +11,11 @@
 #include "debug.h"
 #include "writeback.h"
 
+#include <linux/delay.h>
+#include <linux/freezer.h>
+#include <linux/kthread.h>
 #include <trace/events/bcache.h>
 
-static struct workqueue_struct *dirty_wq;
-
-static void read_dirty(struct closure *);
-
-struct dirty_io {
-	struct closure		cl;
-	struct cached_dev	*dc;
-	struct bio		bio;
-};
-
 /* Rate limiting */
 
 static void __update_writeback_rate(struct cached_dev *dc)
@@ -72,9 +65,6 @@ out:
 	dc->writeback_rate_derivative = derivative;
 	dc->writeback_rate_change = change;
 	dc->writeback_rate_target = target;
-
-	schedule_delayed_work(&dc->writeback_rate_update,
-			      dc->writeback_rate_update_seconds * HZ);
 }
 
 static void update_writeback_rate(struct work_struct *work)
@@ -90,6 +80,9 @@ static void update_writeback_rate(struct work_struct *work)
 		__update_writeback_rate(dc);
 
 	up_read(&dc->writeback_lock);
+
+	schedule_delayed_work(&dc->writeback_rate_update,
+			      dc->writeback_rate_update_seconds * HZ);
 }
 
 static unsigned writeback_delay(struct cached_dev *dc, unsigned sectors)
@@ -105,37 +98,11 @@ static unsigned writeback_delay(struct cached_dev *dc, unsigned sectors)
 	return min_t(uint64_t, ret, HZ);
 }
 
-/* Background writeback */
-
-static bool dirty_pred(struct keybuf *buf, struct bkey *k)
-{
-	return KEY_DIRTY(k);
-}
-
-static bool dirty_full_stripe_pred(struct keybuf *buf, struct bkey *k)
-{
-	uint64_t stripe = KEY_START(k);
-	unsigned nr_sectors = KEY_SIZE(k);
-	struct cached_dev *dc = container_of(buf, struct cached_dev,
-					     writeback_keys);
-
-	if (!KEY_DIRTY(k))
-		return false;
-
-	do_div(stripe, dc->disk.stripe_size);
-
-	while (1) {
-		if (atomic_read(dc->disk.stripe_sectors_dirty + stripe) ==
-		    dc->disk.stripe_size)
-			return true;
-
-		if (nr_sectors <= dc->disk.stripe_size)
-			return false;
-
-		nr_sectors -= dc->disk.stripe_size;
-		stripe++;
-	}
-}
+struct dirty_io {
+	struct closure		cl;
+	struct cached_dev	*dc;
+	struct bio		bio;
+};
 
 static void dirty_init(struct keybuf_key *w)
 {
@@ -153,132 +120,6 @@ static void dirty_init(struct keybuf_key *w)
 	bch_bio_map(bio, NULL);
 }
 
-static void refill_dirty(struct closure *cl)
-{
-	struct cached_dev *dc = container_of(cl, struct cached_dev,
-					     writeback.cl);
-	struct keybuf *buf = &dc->writeback_keys;
-	bool searched_from_start = false;
-	struct bkey end = MAX_KEY;
-	SET_KEY_INODE(&end, dc->disk.id);
-
-	if (!atomic_read(&dc->disk.detaching) &&
-	    !dc->writeback_running)
-		closure_return(cl);
-
-	down_write(&dc->writeback_lock);
-
-	if (!atomic_read(&dc->has_dirty)) {
-		SET_BDEV_STATE(&dc->sb, BDEV_STATE_CLEAN);
-		bch_write_bdev_super(dc, NULL);
-
-		up_write(&dc->writeback_lock);
-		closure_return(cl);
-	}
-
-	if (bkey_cmp(&buf->last_scanned, &end) >= 0) {
-		buf->last_scanned = KEY(dc->disk.id, 0, 0);
-		searched_from_start = true;
-	}
-
-	if (dc->partial_stripes_expensive) {
-		uint64_t i;
-
-		for (i = 0; i < dc->disk.nr_stripes; i++)
-			if (atomic_read(dc->disk.stripe_sectors_dirty + i) ==
-			    dc->disk.stripe_size)
-				goto full_stripes;
-
-		goto normal_refill;
-full_stripes:
-		searched_from_start = false;	/* not searching entire btree */
-		bch_refill_keybuf(dc->disk.c, buf, &end,
-				  dirty_full_stripe_pred);
-	} else {
-normal_refill:
-		bch_refill_keybuf(dc->disk.c, buf, &end, dirty_pred);
-	}
-
-	if (bkey_cmp(&buf->last_scanned, &end) >= 0 && searched_from_start) {
-		/* Searched the entire btree  - delay awhile */
-
-		if (RB_EMPTY_ROOT(&buf->keys)) {
-			atomic_set(&dc->has_dirty, 0);
-			cached_dev_put(dc);
-		}
-
-		if (!atomic_read(&dc->disk.detaching))
-			closure_delay(&dc->writeback, dc->writeback_delay * HZ);
-	}
-
-	up_write(&dc->writeback_lock);
-
-	bch_ratelimit_reset(&dc->writeback_rate);
-
-	/* Punt to workqueue only so we don't recurse and blow the stack */
-	continue_at(cl, read_dirty, dirty_wq);
-}
-
-void bch_writeback_queue(struct cached_dev *dc)
-{
-	if (closure_trylock(&dc->writeback.cl, &dc->disk.cl)) {
-		if (!atomic_read(&dc->disk.detaching))
-			closure_delay(&dc->writeback, dc->writeback_delay * HZ);
-
-		continue_at(&dc->writeback.cl, refill_dirty, dirty_wq);
-	}
-}
-
-void bch_writeback_add(struct cached_dev *dc)
-{
-	if (!atomic_read(&dc->has_dirty) &&
-	    !atomic_xchg(&dc->has_dirty, 1)) {
-		atomic_inc(&dc->count);
-
-		if (BDEV_STATE(&dc->sb) != BDEV_STATE_DIRTY) {
-			SET_BDEV_STATE(&dc->sb, BDEV_STATE_DIRTY);
-			/* XXX: should do this synchronously */
-			bch_write_bdev_super(dc, NULL);
-		}
-
-		bch_writeback_queue(dc);
-
-		if (dc->writeback_percent)
-			schedule_delayed_work(&dc->writeback_rate_update,
-				      dc->writeback_rate_update_seconds * HZ);
-	}
-}
-
-void bcache_dev_sectors_dirty_add(struct cache_set *c, unsigned inode,
-				  uint64_t offset, int nr_sectors)
-{
-	struct bcache_device *d = c->devices[inode];
-	unsigned stripe_offset;
-	uint64_t stripe = offset;
-
-	if (!d)
-		return;
-
-	do_div(stripe, d->stripe_size);
-
-	stripe_offset = offset & (d->stripe_size - 1);
-
-	while (nr_sectors) {
-		int s = min_t(unsigned, abs(nr_sectors),
-			      d->stripe_size - stripe_offset);
-
-		if (nr_sectors < 0)
-			s = -s;
-
-		atomic_add(s, d->stripe_sectors_dirty + stripe);
-		nr_sectors -= s;
-		stripe_offset = 0;
-		stripe++;
-	}
-}
-
-/* Background writeback - IO loop */
-
 static void dirty_io_destructor(struct closure *cl)
 {
 	struct dirty_io *io = container_of(cl, struct dirty_io, cl);
@@ -378,30 +219,33 @@ static void read_dirty_submit(struct closure *cl)
 	continue_at(cl, write_dirty, system_wq);
 }
 
-static void read_dirty(struct closure *cl)
+static void read_dirty(struct cached_dev *dc)
 {
-	struct cached_dev *dc = container_of(cl, struct cached_dev,
-					     writeback.cl);
-	unsigned delay = writeback_delay(dc, 0);
+	unsigned delay = 0;
 	struct keybuf_key *w;
 	struct dirty_io *io;
+	struct closure cl;
+
+	closure_init_stack(&cl);
 
 	/*
 	 * XXX: if we error, background writeback just spins. Should use some
 	 * mempools.
 	 */
 
-	while (1) {
+	while (!kthread_should_stop()) {
+		try_to_freeze();
+
 		w = bch_keybuf_next(&dc->writeback_keys);
 		if (!w)
 			break;
 
 		BUG_ON(ptr_stale(dc->disk.c, &w->key, 0));
 
-		if (delay > 0 &&
-		    (KEY_START(&w->key) != dc->last_read ||
-		     jiffies_to_msecs(delay) > 50))
-			delay = schedule_timeout_uninterruptible(delay);
+		if (KEY_START(&w->key) != dc->last_read ||
+		    jiffies_to_msecs(delay) > 50)
+			while (!kthread_should_stop() && delay)
+				delay = schedule_timeout_interruptible(delay);
 
 		dc->last_read	= KEY_OFFSET(&w->key);
 
@@ -427,7 +271,7 @@ static void read_dirty(struct closure *cl)
 		trace_bcache_writeback(&w->key);
 
 		down(&dc->in_flight);
-		closure_call(&io->cl, read_dirty_submit, NULL, cl);
+		closure_call(&io->cl, read_dirty_submit, NULL, &cl);
 
 		delay = writeback_delay(dc, KEY_SIZE(&w->key));
 	}
@@ -443,7 +287,148 @@ err:
 	 * Wait for outstanding writeback IOs to finish (and keybuf slots to be
 	 * freed) before refilling again
 	 */
-	continue_at(cl, refill_dirty, dirty_wq);
+	closure_sync(&cl);
+}
+
+/* Scan for dirty data */
+
+void bcache_dev_sectors_dirty_add(struct cache_set *c, unsigned inode,
+				  uint64_t offset, int nr_sectors)
+{
+	struct bcache_device *d = c->devices[inode];
+	unsigned stripe_offset;
+	uint64_t stripe = offset;
+
+	if (!d)
+		return;
+
+	do_div(stripe, d->stripe_size);
+
+	stripe_offset = offset & (d->stripe_size - 1);
+
+	while (nr_sectors) {
+		int s = min_t(unsigned, abs(nr_sectors),
+			      d->stripe_size - stripe_offset);
+
+		if (nr_sectors < 0)
+			s = -s;
+
+		atomic_add(s, d->stripe_sectors_dirty + stripe);
+		nr_sectors -= s;
+		stripe_offset = 0;
+		stripe++;
+	}
+}
+
+static bool dirty_pred(struct keybuf *buf, struct bkey *k)
+{
+	return KEY_DIRTY(k);
+}
+
+static bool dirty_full_stripe_pred(struct keybuf *buf, struct bkey *k)
+{
+	uint64_t stripe = KEY_START(k);
+	unsigned nr_sectors = KEY_SIZE(k);
+	struct cached_dev *dc = container_of(buf, struct cached_dev,
+					     writeback_keys);
+
+	if (!KEY_DIRTY(k))
+		return false;
+
+	do_div(stripe, dc->disk.stripe_size);
+
+	while (1) {
+		if (atomic_read(dc->disk.stripe_sectors_dirty + stripe) ==
+		    dc->disk.stripe_size)
+			return true;
+
+		if (nr_sectors <= dc->disk.stripe_size)
+			return false;
+
+		nr_sectors -= dc->disk.stripe_size;
+		stripe++;
+	}
+}
+
+static bool refill_dirty(struct cached_dev *dc)
+{
+	struct keybuf *buf = &dc->writeback_keys;
+	bool searched_from_start = false;
+	struct bkey end = KEY(dc->disk.id, MAX_KEY_OFFSET, 0);
+
+	if (bkey_cmp(&buf->last_scanned, &end) >= 0) {
+		buf->last_scanned = KEY(dc->disk.id, 0, 0);
+		searched_from_start = true;
+	}
+
+	if (dc->partial_stripes_expensive) {
+		uint64_t i;
+
+		for (i = 0; i < dc->disk.nr_stripes; i++)
+			if (atomic_read(dc->disk.stripe_sectors_dirty + i) ==
+			    dc->disk.stripe_size)
+				goto full_stripes;
+
+		goto normal_refill;
+full_stripes:
+		searched_from_start = false;	/* not searching entire btree */
+		bch_refill_keybuf(dc->disk.c, buf, &end,
+				  dirty_full_stripe_pred);
+	} else {
+normal_refill:
+		bch_refill_keybuf(dc->disk.c, buf, &end, dirty_pred);
+	}
+
+	return bkey_cmp(&buf->last_scanned, &end) >= 0 && searched_from_start;
+}
+
+static int bch_writeback_thread(void *arg)
+{
+	struct cached_dev *dc = arg;
+	bool searched_full_index;
+
+	while (!kthread_should_stop()) {
+		down_write(&dc->writeback_lock);
+		if (!atomic_read(&dc->has_dirty) ||
+		    (!atomic_read(&dc->disk.detaching) &&
+		     !dc->writeback_running)) {
+			up_write(&dc->writeback_lock);
+			set_current_state(TASK_INTERRUPTIBLE);
+
+			if (kthread_should_stop())
+				return 0;
+
+			try_to_freeze();
+			schedule();
+			continue;
+		}
+
+		searched_full_index = refill_dirty(dc);
+
+		if (searched_full_index &&
+		    RB_EMPTY_ROOT(&dc->writeback_keys.keys)) {
+			atomic_set(&dc->has_dirty, 0);
+			cached_dev_put(dc);
+			SET_BDEV_STATE(&dc->sb, BDEV_STATE_CLEAN);
+			bch_write_bdev_super(dc, NULL);
+		}
+
+		up_write(&dc->writeback_lock);
+
+		bch_ratelimit_reset(&dc->writeback_rate);
+		read_dirty(dc);
+
+		if (searched_full_index) {
+			unsigned delay = dc->writeback_delay * HZ;
+
+			while (delay &&
+			       !kthread_should_stop() &&
+			       !atomic_read(&dc->disk.detaching))
+				delay = schedule_timeout_interruptible(delay);
+		}
+	}
+
+	return 0;
 }
 
 /* Init */
@@ -483,12 +468,10 @@ void bch_sectors_dirty_init(struct cached_dev *dc)
 	btree_root(sectors_dirty_init, dc->disk.c, &op, dc);
 }
 
-void bch_cached_dev_writeback_init(struct cached_dev *dc)
+int bch_cached_dev_writeback_init(struct cached_dev *dc)
 {
 	sema_init(&dc->in_flight, 64);
-	closure_init_unlocked(&dc->writeback);
 	init_rwsem(&dc->writeback_lock);
-
 	bch_keybuf_init(&dc->writeback_keys);
 
 	dc->writeback_metadata		= true;
@@ -502,22 +485,16 @@ void bch_cached_dev_writeback_init(struct cached_dev *dc)
 	dc->writeback_rate_p_term_inverse = 64;
 	dc->writeback_rate_d_smooth	= 8;
 
+	dc->writeback_thread = kthread_create(bch_writeback_thread, dc,
+					      "bcache_writeback");
+	if (IS_ERR(dc->writeback_thread))
+		return PTR_ERR(dc->writeback_thread);
+
+	set_task_state(dc->writeback_thread, TASK_INTERRUPTIBLE);
+
 	INIT_DELAYED_WORK(&dc->writeback_rate_update, update_writeback_rate);
 	schedule_delayed_work(&dc->writeback_rate_update,
 			      dc->writeback_rate_update_seconds * HZ);
-}
-
-void bch_writeback_exit(void)
-{
-	if (dirty_wq)
-		destroy_workqueue(dirty_wq);
-}
-
-int __init bch_writeback_init(void)
-{
-	dirty_wq = create_workqueue("bcache_writeback");
-	if (!dirty_wq)
-		return -ENOMEM;
 
 	return 0;
 }
diff --git a/drivers/md/bcache/writeback.h b/drivers/md/bcache/writeback.h
index 34961888b5a9..60516bfa6052 100644
--- a/drivers/md/bcache/writeback.h
+++ b/drivers/md/bcache/writeback.h
@@ -56,11 +56,30 @@ static inline bool should_writeback(struct cached_dev *dc, struct bio *bio,
 		in_use <= CUTOFF_WRITEBACK;
 }
 
+static inline void bch_writeback_queue(struct cached_dev *dc)
+{
+	wake_up_process(dc->writeback_thread);
+}
+
+static inline void bch_writeback_add(struct cached_dev *dc)
+{
+	if (!atomic_read(&dc->has_dirty) &&
+	    !atomic_xchg(&dc->has_dirty, 1)) {
+		atomic_inc(&dc->count);
+
+		if (BDEV_STATE(&dc->sb) != BDEV_STATE_DIRTY) {
+			SET_BDEV_STATE(&dc->sb, BDEV_STATE_DIRTY);
+			/* XXX: should do this synchronously */
+			bch_write_bdev_super(dc, NULL);
+		}
+
+		bch_writeback_queue(dc);
+	}
+}
+
 void bcache_dev_sectors_dirty_add(struct cache_set *, unsigned, uint64_t, int);
-void bch_writeback_queue(struct cached_dev *);
-void bch_writeback_add(struct cached_dev *);
 
 void bch_sectors_dirty_init(struct cached_dev *dc);
-void bch_cached_dev_writeback_init(struct cached_dev *);
+int bch_cached_dev_writeback_init(struct cached_dev *);
 
 #endif
-- 
cgit 


From 48dad8baf92fe8967d9e1358af1cfdda1d2d3298 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Tue, 10 Sep 2013 18:48:51 -0700
Subject: bcache: Add btree_map() functions

Lots of stuff has been open coding its own btree traversal - which is
generally pretty simple code, but there are a few subtleties.

This adds new new functions, bch_btree_map_nodes() and
bch_btree_map_keys(), which do the traversal for you. Everything that's
open coding btree traversal now (with the exception of garbage
collection) is slowly going to be converted to these two functions;
being able to write other code at a higher level of abstraction  is a
big improvement w.r.t. overall code quality.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bcache.h    |   2 -
 drivers/md/bcache/bset.c      |  33 ++++----
 drivers/md/bcache/btree.c     | 174 +++++++++++++++++++++++++++++-------------
 drivers/md/bcache/btree.h     |  37 ++++++++-
 drivers/md/bcache/writeback.c |  37 ++++-----
 5 files changed, 186 insertions(+), 97 deletions(-)

diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index 674e2f42e778..20fe96c121d9 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -384,8 +384,6 @@ struct keybuf_key {
 	void			*private;
 };
 
-typedef bool (keybuf_pred_fn)(struct keybuf *, struct bkey *);
-
 struct keybuf {
 	struct bkey		last_scanned;
 	spinlock_t		lock;
diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c
index d0512e451dda..14c2a23d3884 100644
--- a/drivers/md/bcache/bset.c
+++ b/drivers/md/bcache/bset.c
@@ -842,6 +842,13 @@ struct bkey *__bch_bset_search(struct btree *b, struct bset_tree *t,
 
 /* Btree iterator */
 
+/*
+ * Returns true if l > r - unless l == r, in which case returns true if l is
+ * older than r.
+ *
+ * Necessary for btree_sort_fixup() - if there are multiple keys that compare
+ * equal in different sets, we have to process them newest to oldest.
+ */
 static inline bool btree_iter_cmp(struct btree_iter_set l,
 				  struct btree_iter_set r)
 {
@@ -1146,16 +1153,16 @@ out:
 /* Sysfs stuff */
 
 struct bset_stats {
+	struct btree_op op;
 	size_t nodes;
 	size_t sets_written, sets_unwritten;
 	size_t bytes_written, bytes_unwritten;
 	size_t floats, failed;
 };
 
-static int bch_btree_bset_stats(struct btree *b, struct btree_op *op,
-			    struct bset_stats *stats)
+static int btree_bset_stats(struct btree_op *op, struct btree *b)
 {
-	struct bkey *k;
+	struct bset_stats *stats = container_of(op, struct bset_stats, op);
 	unsigned i;
 
 	stats->nodes++;
@@ -1180,30 +1187,20 @@ static int bch_btree_bset_stats(struct btree *b, struct btree_op *op,
 		}
 	}
 
-	if (b->level) {
-		struct btree_iter iter;
-
-		for_each_key_filter(b, k, &iter, bch_ptr_bad) {
-			int ret = btree(bset_stats, k, b, op, stats);
-			if (ret)
-				return ret;
-		}
-	}
-
-	return 0;
+	return MAP_CONTINUE;
 }
 
 int bch_bset_print_stats(struct cache_set *c, char *buf)
 {
-	struct btree_op op;
 	struct bset_stats t;
 	int ret;
 
-	bch_btree_op_init_stack(&op);
 	memset(&t, 0, sizeof(struct bset_stats));
+	bch_btree_op_init_stack(&t.op);
+	t.op.c = c;
 
-	ret = btree_root(bset_stats, c, &op, &t);
-	if (ret)
+	ret = bch_btree_map_nodes(&t.op, c, &ZERO_KEY, btree_bset_stats);
+	if (ret < 0)
 		return ret;
 
 	return snprintf(buf, PAGE_SIZE,
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 17bfd87fc8f4..cfbdcf349b7f 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -2296,6 +2296,82 @@ int bch_btree_search_recurse(struct btree *b, struct btree_op *op)
 	return ret;
 }
 
+/* Map across nodes or keys */
+
+static int bch_btree_map_nodes_recurse(struct btree *b, struct btree_op *op,
+				       struct bkey *from,
+				       btree_map_nodes_fn *fn, int flags)
+{
+	int ret = MAP_CONTINUE;
+
+	if (b->level) {
+		struct bkey *k;
+		struct btree_iter iter;
+
+		bch_btree_iter_init(b, &iter, from);
+
+		while ((k = bch_btree_iter_next_filter(&iter, b,
+						       bch_ptr_bad))) {
+			ret = btree(map_nodes_recurse, k, b,
+				    op, from, fn, flags);
+			from = NULL;
+
+			if (ret != MAP_CONTINUE)
+				return ret;
+		}
+	}
+
+	if (!b->level || flags == MAP_ALL_NODES)
+		ret = fn(op, b);
+
+	return ret;
+}
+
+int __bch_btree_map_nodes(struct btree_op *op, struct cache_set *c,
+			  struct bkey *from, btree_map_nodes_fn *fn, int flags)
+{
+	int ret = btree_root(map_nodes_recurse, c, op, from, fn, flags);
+	if (closure_blocking(&op->cl))
+		closure_sync(&op->cl);
+	return ret;
+}
+
+static int bch_btree_map_keys_recurse(struct btree *b, struct btree_op *op,
+				      struct bkey *from, btree_map_keys_fn *fn,
+				      int flags)
+{
+	int ret = MAP_CONTINUE;
+	struct bkey *k;
+	struct btree_iter iter;
+
+	bch_btree_iter_init(b, &iter, from);
+
+	while ((k = bch_btree_iter_next_filter(&iter, b, bch_ptr_bad))) {
+		ret = !b->level
+			? fn(op, b, k)
+			: btree(map_keys_recurse, k, b, op, from, fn, flags);
+		from = NULL;
+
+		if (ret != MAP_CONTINUE)
+			return ret;
+	}
+
+	if (!b->level && (flags & MAP_END_KEY))
+		ret = fn(op, b, &KEY(KEY_INODE(&b->key),
+				     KEY_OFFSET(&b->key), 0));
+
+	return ret;
+}
+
+int bch_btree_map_keys(struct btree_op *op, struct cache_set *c,
+		       struct bkey *from, btree_map_keys_fn *fn, int flags)
+{
+	int ret = btree_root(map_keys_recurse, c, op, from, fn, flags);
+	if (closure_blocking(&op->cl))
+		closure_sync(&op->cl);
+	return ret;
+}
+
 /* Keybuf code */
 
 static inline int keybuf_cmp(struct keybuf_key *l, struct keybuf_key *r)
@@ -2314,74 +2390,70 @@ static inline int keybuf_nonoverlapping_cmp(struct keybuf_key *l,
 	return clamp_t(int64_t, bkey_cmp(&l->key, &r->key), -1, 1);
 }
 
-static int bch_btree_refill_keybuf(struct btree *b, struct btree_op *op,
-				   struct keybuf *buf, struct bkey *end,
-				   keybuf_pred_fn *pred)
-{
-	struct btree_iter iter;
-	bch_btree_iter_init(b, &iter, &buf->last_scanned);
-
-	while (!array_freelist_empty(&buf->freelist)) {
-		struct bkey *k = bch_btree_iter_next_filter(&iter, b,
-							    bch_ptr_bad);
-
-		if (!b->level) {
-			if (!k) {
-				buf->last_scanned = b->key;
-				break;
-			}
+struct refill {
+	struct btree_op	op;
+	struct keybuf	*buf;
+	struct bkey	*end;
+	keybuf_pred_fn	*pred;
+};
 
-			buf->last_scanned = *k;
-			if (bkey_cmp(&buf->last_scanned, end) >= 0)
-				break;
+static int refill_keybuf_fn(struct btree_op *op, struct btree *b,
+			    struct bkey *k)
+{
+	struct refill *refill = container_of(op, struct refill, op);
+	struct keybuf *buf = refill->buf;
+	int ret = MAP_CONTINUE;
 
-			if (pred(buf, k)) {
-				struct keybuf_key *w;
+	if (bkey_cmp(k, refill->end) >= 0) {
+		ret = MAP_DONE;
+		goto out;
+	}
 
-				spin_lock(&buf->lock);
+	if (!KEY_SIZE(k)) /* end key */
+		goto out;
 
-				w = array_alloc(&buf->freelist);
+	if (refill->pred(buf, k)) {
+		struct keybuf_key *w;
 
-				w->private = NULL;
-				bkey_copy(&w->key, k);
+		spin_lock(&buf->lock);
 
-				if (RB_INSERT(&buf->keys, w, node, keybuf_cmp))
-					array_free(&buf->freelist, w);
+		w = array_alloc(&buf->freelist);
+		if (!w) {
+			spin_unlock(&buf->lock);
+			return MAP_DONE;
+		}
 
-				spin_unlock(&buf->lock);
-			}
-		} else {
-			if (!k)
-				break;
+		w->private = NULL;
+		bkey_copy(&w->key, k);
 
-			btree(refill_keybuf, k, b, op, buf, end, pred);
-			/*
-			 * Might get an error here, but can't really do anything
-			 * and it'll get logged elsewhere. Just read what we
-			 * can.
-			 */
+		if (RB_INSERT(&buf->keys, w, node, keybuf_cmp))
+			array_free(&buf->freelist, w);
 
-			if (bkey_cmp(&buf->last_scanned, end) >= 0)
-				break;
+		if (array_freelist_empty(&buf->freelist))
+			ret = MAP_DONE;
 
-			cond_resched();
-		}
+		spin_unlock(&buf->lock);
 	}
-
-	return 0;
+out:
+	buf->last_scanned = *k;
+	return ret;
 }
 
 void bch_refill_keybuf(struct cache_set *c, struct keybuf *buf,
 		       struct bkey *end, keybuf_pred_fn *pred)
 {
 	struct bkey start = buf->last_scanned;
-	struct btree_op op;
-	bch_btree_op_init_stack(&op);
+	struct refill refill;
 
 	cond_resched();
 
-	btree_root(refill_keybuf, c, &op, buf, end, pred);
-	closure_sync(&op.cl);
+	bch_btree_op_init_stack(&refill.op);
+	refill.buf = buf;
+	refill.end = end;
+	refill.pred = pred;
+
+	bch_btree_map_keys(&refill.op, c, &buf->last_scanned,
+			   refill_keybuf_fn, MAP_END_KEY);
 
 	pr_debug("found %s keys from %llu:%llu to %llu:%llu",
 		 RB_EMPTY_ROOT(&buf->keys) ? "no" :
@@ -2465,9 +2537,9 @@ struct keybuf_key *bch_keybuf_next(struct keybuf *buf)
 }
 
 struct keybuf_key *bch_keybuf_next_rescan(struct cache_set *c,
-					     struct keybuf *buf,
-					     struct bkey *end,
-					     keybuf_pred_fn *pred)
+					  struct keybuf *buf,
+					  struct bkey *end,
+					  keybuf_pred_fn *pred)
 {
 	struct keybuf_key *ret;
 
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index fa9641aaed39..cafdeb01e219 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -400,9 +400,42 @@ static inline void wake_up_gc(struct cache_set *c)
 		wake_up_process(c->gc_thread);
 }
 
+#define MAP_DONE	0
+#define MAP_CONTINUE	1
+
+#define MAP_ALL_NODES	0
+#define MAP_LEAF_NODES	1
+
+#define MAP_END_KEY	1
+
+typedef int (btree_map_nodes_fn)(struct btree_op *, struct btree *);
+int __bch_btree_map_nodes(struct btree_op *, struct cache_set *,
+			  struct bkey *, btree_map_nodes_fn *, int);
+
+static inline int bch_btree_map_nodes(struct btree_op *op, struct cache_set *c,
+				      struct bkey *from, btree_map_nodes_fn *fn)
+{
+	return __bch_btree_map_nodes(op, c, from, fn, MAP_ALL_NODES);
+}
+
+static inline int bch_btree_map_leaf_nodes(struct btree_op *op,
+					   struct cache_set *c,
+					   struct bkey *from,
+					   btree_map_nodes_fn *fn)
+{
+	return __bch_btree_map_nodes(op, c, from, fn, MAP_LEAF_NODES);
+}
+
+typedef int (btree_map_keys_fn)(struct btree_op *, struct btree *,
+				struct bkey *);
+int bch_btree_map_keys(struct btree_op *, struct cache_set *,
+		       struct bkey *, btree_map_keys_fn *, int);
+
+typedef bool (keybuf_pred_fn)(struct keybuf *, struct bkey *);
+
 void bch_keybuf_init(struct keybuf *);
-void bch_refill_keybuf(struct cache_set *, struct keybuf *, struct bkey *,
-		       keybuf_pred_fn *);
+void bch_refill_keybuf(struct cache_set *, struct keybuf *,
+		       struct bkey *, keybuf_pred_fn *);
 bool bch_keybuf_check_overlapping(struct keybuf *, struct bkey *,
 				  struct bkey *);
 void bch_keybuf_del(struct keybuf *, struct keybuf_key *);
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index 4392f3f38d62..c68de9f12618 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -433,31 +433,17 @@ static int bch_writeback_thread(void *arg)
 
 /* Init */
 
-static int bch_btree_sectors_dirty_init(struct btree *b, struct btree_op *op,
-					struct cached_dev *dc)
+static int sectors_dirty_init_fn(struct btree_op *op, struct btree *b,
+				 struct bkey *k)
 {
-	struct bkey *k;
-	struct btree_iter iter;
-
-	bch_btree_iter_init(b, &iter, &KEY(dc->disk.id, 0, 0));
-	while ((k = bch_btree_iter_next_filter(&iter, b, bch_ptr_bad)))
-		if (!b->level) {
-			if (KEY_INODE(k) > dc->disk.id)
-				break;
-
-			if (KEY_DIRTY(k))
-				bcache_dev_sectors_dirty_add(b->c, dc->disk.id,
-							     KEY_START(k),
-							     KEY_SIZE(k));
-		} else {
-			btree(sectors_dirty_init, k, b, op, dc);
-			if (KEY_INODE(k) > dc->disk.id)
-				break;
-
-			cond_resched();
-		}
+	if (KEY_INODE(k) > op->inode)
+		return MAP_DONE;
 
-	return 0;
+	if (KEY_DIRTY(k))
+		bcache_dev_sectors_dirty_add(b->c, KEY_INODE(k),
+					     KEY_START(k), KEY_SIZE(k));
+
+	return MAP_CONTINUE;
 }
 
 void bch_sectors_dirty_init(struct cached_dev *dc)
@@ -465,7 +451,10 @@ void bch_sectors_dirty_init(struct cached_dev *dc)
 	struct btree_op op;
 
 	bch_btree_op_init_stack(&op);
-	btree_root(sectors_dirty_init, dc->disk.c, &op, dc);
+	op.inode = dc->disk.id;
+
+	bch_btree_map_keys(&op, dc->disk.c, &KEY(op.inode, 0, 0),
+			   sectors_dirty_init_fn, 0);
 }
 
 int bch_cached_dev_writeback_init(struct cached_dev *dc)
-- 
cgit 


From df8e89701fb02cba6e09c5f46f002778b5b52dd2 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 17:37:59 -0700
Subject: bcache: Move some stuff to btree.c

With the new btree_map() functions, we don't need to export the stuff
needed for traversing the btree anymore.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/btree.c   | 95 ++++++++++++++++++++++++++++++++++++++++++++-
 drivers/md/bcache/btree.h   | 82 +-------------------------------------
 drivers/md/bcache/request.c | 16 +-------
 3 files changed, 96 insertions(+), 97 deletions(-)

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index cfbdcf349b7f..bfd60e6a2312 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -99,6 +99,13 @@ static const char *op_type(struct btree_op *op)
 	return op_types[op->type];
 }
 
+enum {
+	BTREE_INSERT_STATUS_INSERT,
+	BTREE_INSERT_STATUS_BACK_MERGE,
+	BTREE_INSERT_STATUS_OVERWROTE,
+	BTREE_INSERT_STATUS_FRONT_MERGE,
+};
+
 #define MAX_NEED_GC		64
 #define MAX_SAVE_PRIO		72
 
@@ -116,6 +123,78 @@ void bch_btree_op_init_stack(struct btree_op *op)
 	op->lock = -1;
 }
 
+static inline bool should_split(struct btree *b)
+{
+	struct bset *i = write_block(b);
+	return b->written >= btree_blocks(b) ||
+		(b->written + __set_blocks(i, i->keys + 15, b->c)
+		 > btree_blocks(b));
+}
+
+#define insert_lock(s, b)	((b)->level <= (s)->lock)
+
+/*
+ * These macros are for recursing down the btree - they handle the details of
+ * locking and looking up nodes in the cache for you. They're best treated as
+ * mere syntax when reading code that uses them.
+ *
+ * op->lock determines whether we take a read or a write lock at a given depth.
+ * If you've got a read lock and find that you need a write lock (i.e. you're
+ * going to have to split), set op->lock and return -EINTR; btree_root() will
+ * call you again and you'll have the correct lock.
+ */
+
+/**
+ * btree - recurse down the btree on a specified key
+ * @fn:		function to call, which will be passed the child node
+ * @key:	key to recurse on
+ * @b:		parent btree node
+ * @op:		pointer to struct btree_op
+ */
+#define btree(fn, key, b, op, ...)					\
+({									\
+	int _r, l = (b)->level - 1;					\
+	bool _w = l <= (op)->lock;					\
+	struct btree *_child = bch_btree_node_get((b)->c, key, l, _w);	\
+	if (!IS_ERR(_child)) {						\
+		_child->parent = (b);					\
+		_r = bch_btree_ ## fn(_child, op, ##__VA_ARGS__);	\
+		rw_unlock(_w, _child);					\
+	} else								\
+		_r = PTR_ERR(_child);					\
+	_r;								\
+})
+
+/**
+ * btree_root - call a function on the root of the btree
+ * @fn:		function to call, which will be passed the child node
+ * @c:		cache set
+ * @op:		pointer to struct btree_op
+ */
+#define btree_root(fn, c, op, ...)					\
+({									\
+	int _r = -EINTR;						\
+	do {								\
+		struct btree *_b = (c)->root;				\
+		bool _w = insert_lock(op, _b);				\
+		rw_lock(_w, _b, _b->level);				\
+		if (_b == (c)->root &&					\
+		    _w == insert_lock(op, _b)) {			\
+			_b->parent = NULL;				\
+			_r = bch_btree_ ## fn(_b, op, ##__VA_ARGS__);	\
+		}							\
+		rw_unlock(_w, _b);					\
+		bch_cannibalize_unlock(c);				\
+		if (_r == -ENOSPC) {					\
+			wait_event((c)->try_wait,			\
+				   !(c)->try_harder);			\
+			_r = -EINTR;					\
+		}							\
+	} while (_r == -EINTR);						\
+									\
+	_r;								\
+})
+
 /* Btree key manipulation */
 
 void __bkey_put(struct cache_set *c, struct bkey *k)
@@ -811,7 +890,7 @@ static struct btree *mca_cannibalize(struct cache_set *c, struct bkey *k)
  * cannibalize_bucket() will take. This means every time we unlock the root of
  * the btree, we need to release this lock if we have it held.
  */
-void bch_cannibalize_unlock(struct cache_set *c)
+static void bch_cannibalize_unlock(struct cache_set *c)
 {
 	if (c->try_harder == current) {
 		bch_time_stats_update(&c->try_harder_time, c->try_harder_start);
@@ -2262,7 +2341,7 @@ static int submit_partial_cache_hit(struct btree *b, struct btree_op *op,
 	return 0;
 }
 
-int bch_btree_search_recurse(struct btree *b, struct btree_op *op)
+static int bch_btree_search_recurse(struct btree *b, struct btree_op *op)
 {
 	struct search *s = container_of(op, struct search, op);
 	struct bio *bio = &s->bio.bio;
@@ -2296,6 +2375,18 @@ int bch_btree_search_recurse(struct btree *b, struct btree_op *op)
 	return ret;
 }
 
+void bch_btree_search_async(struct closure *cl)
+{
+	struct btree_op *op = container_of(cl, struct btree_op, cl);
+
+	int ret = btree_root(search_recurse, op->c, op);
+
+	if (ret == -EAGAIN)
+		continue_at(cl, bch_btree_search_async, bcache_wq);
+
+	closure_return(cl);
+}
+
 /* Map across nodes or keys */
 
 static int bch_btree_map_nodes_recurse(struct btree *b, struct btree_op *op,
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index cafdeb01e219..1690f4731c1e 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -270,13 +270,6 @@ struct btree_op {
 	BKEY_PADDED(replace);
 };
 
-enum {
-	BTREE_INSERT_STATUS_INSERT,
-	BTREE_INSERT_STATUS_BACK_MERGE,
-	BTREE_INSERT_STATUS_OVERWROTE,
-	BTREE_INSERT_STATUS_FRONT_MERGE,
-};
-
 void bch_btree_op_init_stack(struct btree_op *);
 
 static inline void rw_lock(bool w, struct btree *b, int level)
@@ -302,82 +295,9 @@ static inline void rw_unlock(bool w, struct btree *b)
 	(w ? up_write : up_read)(&b->lock);
 }
 
-#define insert_lock(s, b)	((b)->level <= (s)->lock)
-
-/*
- * These macros are for recursing down the btree - they handle the details of
- * locking and looking up nodes in the cache for you. They're best treated as
- * mere syntax when reading code that uses them.
- *
- * op->lock determines whether we take a read or a write lock at a given depth.
- * If you've got a read lock and find that you need a write lock (i.e. you're
- * going to have to split), set op->lock and return -EINTR; btree_root() will
- * call you again and you'll have the correct lock.
- */
-
-/**
- * btree - recurse down the btree on a specified key
- * @fn:		function to call, which will be passed the child node
- * @key:	key to recurse on
- * @b:		parent btree node
- * @op:		pointer to struct btree_op
- */
-#define btree(fn, key, b, op, ...)					\
-({									\
-	int _r, l = (b)->level - 1;					\
-	bool _w = l <= (op)->lock;					\
-	struct btree *_child = bch_btree_node_get((b)->c, key, l, _w);	\
-	if (!IS_ERR(_child)) {						\
-		_child->parent = (b);					\
-		_r = bch_btree_ ## fn(_child, op, ##__VA_ARGS__);	\
-		rw_unlock(_w, _child);					\
-	} else								\
-		_r = PTR_ERR(_child);					\
-	_r;								\
-})
-
-/**
- * btree_root - call a function on the root of the btree
- * @fn:		function to call, which will be passed the child node
- * @c:		cache set
- * @op:		pointer to struct btree_op
- */
-#define btree_root(fn, c, op, ...)					\
-({									\
-	int _r = -EINTR;						\
-	do {								\
-		struct btree *_b = (c)->root;				\
-		bool _w = insert_lock(op, _b);				\
-		rw_lock(_w, _b, _b->level);				\
-		if (_b == (c)->root &&					\
-		    _w == insert_lock(op, _b)) {			\
-			_b->parent = NULL;				\
-			_r = bch_btree_ ## fn(_b, op, ##__VA_ARGS__);	\
-		}							\
-		rw_unlock(_w, _b);					\
-		bch_cannibalize_unlock(c);				\
-		if (_r == -ENOSPC) {					\
-			wait_event((c)->try_wait,			\
-				   !(c)->try_harder);			\
-			_r = -EINTR;					\
-		}							\
-	} while (_r == -EINTR);						\
-									\
-	_r;								\
-})
-
-static inline bool should_split(struct btree *b)
-{
-	struct bset *i = write_block(b);
-	return b->written >= btree_blocks(b) ||
-		(b->written + __set_blocks(i, i->keys + 15, b->c)
-		 > btree_blocks(b));
-}
-
 void bch_btree_node_read(struct btree *);
 void bch_btree_node_write(struct btree *, struct closure *);
 
-void bch_cannibalize_unlock(struct cache_set *);
 void bch_btree_set_root(struct btree *);
 struct btree *bch_btree_node_alloc(struct cache_set *, int);
 struct btree *bch_btree_node_get(struct cache_set *, struct bkey *, int, bool);
@@ -386,7 +306,7 @@ int bch_btree_insert_check_key(struct btree *, struct btree_op *,
 			       struct bkey *);
 int bch_btree_insert(struct btree_op *, struct cache_set *, struct keylist *);
 
-int bch_btree_search_recurse(struct btree *, struct btree_op *);
+void bch_btree_search_async(struct closure *);
 
 int bch_gc_thread_start(struct cache_set *);
 size_t bch_btree_gc_finish(struct cache_set *);
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index f779eb420d69..a16872541038 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -754,18 +754,6 @@ static struct search *search_alloc(struct bio *bio, struct bcache_device *d)
 	return s;
 }
 
-static void btree_read_async(struct closure *cl)
-{
-	struct btree_op *op = container_of(cl, struct btree_op, cl);
-
-	int ret = btree_root(search_recurse, op->c, op);
-
-	if (ret == -EAGAIN)
-		continue_at(cl, btree_read_async, bcache_wq);
-
-	closure_return(cl);
-}
-
 /* Cached devices */
 
 static void cached_dev_bio_complete(struct closure *cl)
@@ -1087,7 +1075,7 @@ static void cached_dev_read(struct cached_dev *dc, struct search *s)
 {
 	struct closure *cl = &s->cl;
 
-	closure_call(&s->op.cl, btree_read_async, NULL, cl);
+	closure_call(&s->op.cl, bch_btree_search_async, NULL, cl);
 	continue_at(cl, cached_dev_read_done_bh, NULL);
 }
 
@@ -1351,7 +1339,7 @@ static void flash_dev_make_request(struct request_queue *q, struct bio *bio)
 
 		closure_call(&s->op.cl, bch_data_insert, NULL, cl);
 	} else {
-		closure_call(&s->op.cl, btree_read_async, NULL, cl);
+		closure_call(&s->op.cl, bch_btree_search_async, NULL, cl);
 	}
 
 	continue_at(cl, search_free, NULL);
-- 
cgit 


From 2c1953e201a05ddfb1ea53f23d81a492c6513028 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 17:41:08 -0700
Subject: bcache: Convert bch_btree_read_async() to bch_btree_map_keys()

This is a fairly straightforward conversion, mostly reshuffling -
op->lookup_done goes away, replaced by MAP_DONE/MAP_CONTINUE. And the
code for handling cache hits and misses wasn't really btree code, so it
gets moved to request.c.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/btree.c   | 133 --------------------------------------
 drivers/md/bcache/btree.h   |   3 -
 drivers/md/bcache/journal.c |   1 -
 drivers/md/bcache/request.c | 154 +++++++++++++++++++++++++++++++++++---------
 drivers/md/bcache/request.h |   2 -
 5 files changed, 125 insertions(+), 168 deletions(-)

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index bfd60e6a2312..3949673cb1b0 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -23,7 +23,6 @@
 #include "bcache.h"
 #include "btree.h"
 #include "debug.h"
-#include "request.h"
 #include "writeback.h"
 
 #include <linux/slab.h>
@@ -2255,138 +2254,6 @@ void bch_btree_set_root(struct btree *b)
 	closure_sync(&cl);
 }
 
-/* Cache lookup */
-
-static int submit_partial_cache_miss(struct btree *b, struct btree_op *op,
-				     struct bkey *k)
-{
-	struct search *s = container_of(op, struct search, op);
-	struct bio *bio = &s->bio.bio;
-	int ret = 0;
-
-	while (!ret &&
-	       !op->lookup_done) {
-		unsigned sectors = INT_MAX;
-
-		if (KEY_INODE(k) == op->inode) {
-			if (KEY_START(k) <= bio->bi_sector)
-				break;
-
-			sectors = min_t(uint64_t, sectors,
-					KEY_START(k) - bio->bi_sector);
-		}
-
-		ret = s->d->cache_miss(b, s, bio, sectors);
-	}
-
-	return ret;
-}
-
-/*
- * Read from a single key, handling the initial cache miss if the key starts in
- * the middle of the bio
- */
-static int submit_partial_cache_hit(struct btree *b, struct btree_op *op,
-				    struct bkey *k)
-{
-	struct search *s = container_of(op, struct search, op);
-	struct bio *bio = &s->bio.bio;
-	unsigned ptr;
-	struct bio *n;
-
-	int ret = submit_partial_cache_miss(b, op, k);
-	if (ret || op->lookup_done)
-		return ret;
-
-	/* XXX: figure out best pointer - for multiple cache devices */
-	ptr = 0;
-
-	PTR_BUCKET(b->c, k, ptr)->prio = INITIAL_PRIO;
-
-	while (!op->lookup_done &&
-	       KEY_INODE(k) == op->inode &&
-	       bio->bi_sector < KEY_OFFSET(k)) {
-		struct bkey *bio_key;
-		sector_t sector = PTR_OFFSET(k, ptr) +
-			(bio->bi_sector - KEY_START(k));
-		unsigned sectors = min_t(uint64_t, INT_MAX,
-					 KEY_OFFSET(k) - bio->bi_sector);
-
-		n = bch_bio_split(bio, sectors, GFP_NOIO, s->d->bio_split);
-		if (n == bio)
-			op->lookup_done = true;
-
-		bio_key = &container_of(n, struct bbio, bio)->key;
-
-		/*
-		 * The bucket we're reading from might be reused while our bio
-		 * is in flight, and we could then end up reading the wrong
-		 * data.
-		 *
-		 * We guard against this by checking (in cache_read_endio()) if
-		 * the pointer is stale again; if so, we treat it as an error
-		 * and reread from the backing device (but we don't pass that
-		 * error up anywhere).
-		 */
-
-		bch_bkey_copy_single_ptr(bio_key, k, ptr);
-		SET_PTR_OFFSET(bio_key, 0, sector);
-
-		n->bi_end_io	= bch_cache_read_endio;
-		n->bi_private	= &s->cl;
-
-		__bch_submit_bbio(n, b->c);
-	}
-
-	return 0;
-}
-
-static int bch_btree_search_recurse(struct btree *b, struct btree_op *op)
-{
-	struct search *s = container_of(op, struct search, op);
-	struct bio *bio = &s->bio.bio;
-
-	int ret = 0;
-	struct bkey *k;
-	struct btree_iter iter;
-	bch_btree_iter_init(b, &iter, &KEY(op->inode, bio->bi_sector, 0));
-
-	do {
-		k = bch_btree_iter_next_filter(&iter, b, bch_ptr_bad);
-		if (!k) {
-			/*
-			 * b->key would be exactly what we want, except that
-			 * pointers to btree nodes have nonzero size - we
-			 * wouldn't go far enough
-			 */
-
-			ret = submit_partial_cache_miss(b, op,
-					&KEY(KEY_INODE(&b->key),
-					     KEY_OFFSET(&b->key), 0));
-			break;
-		}
-
-		ret = b->level
-			? btree(search_recurse, k, b, op)
-			: submit_partial_cache_hit(b, op, k);
-	} while (!ret &&
-		 !op->lookup_done);
-
-	return ret;
-}
-
-void bch_btree_search_async(struct closure *cl)
-{
-	struct btree_op *op = container_of(cl, struct btree_op, cl);
-
-	int ret = btree_root(search_recurse, op->c, op);
-
-	if (ret == -EAGAIN)
-		continue_at(cl, bch_btree_search_async, bcache_wq);
-
-	closure_return(cl);
-}
-
 /* Map across nodes or keys */
 
 static int bch_btree_map_nodes_recurse(struct btree *b, struct btree_op *op,
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index 1690f4731c1e..60dadd722ace 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -264,7 +264,6 @@ struct btree_op {
 	unsigned		flush_journal:1;
 
 	unsigned		insert_data_done:1;
-	unsigned		lookup_done:1;
 	unsigned		insert_collision:1;
 
 	BKEY_PADDED(replace);
@@ -306,8 +305,6 @@ int bch_btree_insert_check_key(struct btree *, struct btree_op *,
 			       struct bkey *);
 int bch_btree_insert(struct btree_op *, struct cache_set *, struct keylist *);
 
-void bch_btree_search_async(struct closure *);
-
 int bch_gc_thread_start(struct cache_set *);
 size_t bch_btree_gc_finish(struct cache_set *);
 void bch_moving_gc(struct cache_set *);
diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index 8866f8ee3a07..6f4daf031410 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -7,7 +7,6 @@
 #include "bcache.h"
 #include "btree.h"
 #include "debug.h"
-#include "request.h"
 
 #include <trace/events/bcache.h>
 
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index a16872541038..854743e85e76 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -638,24 +638,9 @@ void bch_data_insert(struct closure *cl)
 	bch_data_insert_start(cl);
 }
 
-/* Common code for the make_request functions */
+/* Cache lookup */
 
-static void request_endio(struct bio *bio, int error)
-{
-	struct closure *cl = bio->bi_private;
-
-	if (error) {
-		struct search *s = container_of(cl, struct search, cl);
-		s->error = error;
-		/* Only cache read errors are recoverable */
-		s->recoverable = false;
-	}
-
-	bio_put(bio);
-	closure_put(cl);
-}
-
-void bch_cache_read_endio(struct bio *bio, int error)
+static void bch_cache_read_endio(struct bio *bio, int error)
 {
 	struct bbio *b = container_of(bio, struct bbio, bio);
 	struct closure *cl = bio->bi_private;
@@ -678,6 +663,120 @@ void bch_cache_read_endio(struct bio *bio, int error)
 	bch_bbio_endio(s->op.c, bio, error, "reading from cache");
 }
 
+static int submit_partial_cache_miss(struct btree *b, struct search *s,
+				     struct bkey *k)
+{
+	struct bio *bio = &s->bio.bio;
+	int ret = MAP_CONTINUE;
+
+	do {
+		unsigned sectors = INT_MAX;
+
+		if (KEY_INODE(k) == s->op.inode) {
+			if (KEY_START(k) <= bio->bi_sector)
+				break;
+
+			sectors = min_t(uint64_t, sectors,
+					KEY_START(k) - bio->bi_sector);
+		}
+
+		ret = s->d->cache_miss(b, s, bio, sectors);
+	} while (ret == MAP_CONTINUE);
+
+	return ret;
+}
+
+/*
+ * Read from a single key, handling the initial cache miss if the key starts in
+ * the middle of the bio
+ */
+static int submit_partial_cache_hit(struct btree_op *op, struct btree *b,
+				    struct bkey *k)
+{
+	struct search *s = container_of(op, struct search, op);
+	struct bio *bio = &s->bio.bio;
+	unsigned ptr;
+	struct bio *n;
+
+	int ret = submit_partial_cache_miss(b, s, k);
+	if (ret != MAP_CONTINUE || !KEY_SIZE(k))
+		return ret;
+
+	/* XXX: figure out best pointer - for multiple cache devices */
+	ptr = 0;
+
+	PTR_BUCKET(b->c, k, ptr)->prio = INITIAL_PRIO;
+
+	while (ret == MAP_CONTINUE &&
+	       KEY_INODE(k) == op->inode &&
+	       bio->bi_sector < KEY_OFFSET(k)) {
+		struct bkey *bio_key;
+		sector_t sector = PTR_OFFSET(k, ptr) +
+			(bio->bi_sector - KEY_START(k));
+		unsigned sectors = min_t(uint64_t, INT_MAX,
+					 KEY_OFFSET(k) - bio->bi_sector);
+
+		n = bch_bio_split(bio, sectors, GFP_NOIO, s->d->bio_split);
+		if (n == bio)
+			ret = MAP_DONE;
+
+		bio_key = &container_of(n, struct bbio, bio)->key;
+
+		/*
+		 * The bucket we're reading from might be reused while our bio
+		 * is in flight, and we could then end up reading the wrong
+		 * data.
+		 *
+		 * We guard against this by checking (in cache_read_endio()) if
+		 * the pointer is stale again; if so, we treat it as an error
+		 * and reread from the backing device (but we don't pass that
+		 * error up anywhere).
+		 */
+
+		bch_bkey_copy_single_ptr(bio_key, k, ptr);
+		SET_PTR_OFFSET(bio_key, 0, sector);
+
+		n->bi_end_io	= bch_cache_read_endio;
+		n->bi_private	= &s->cl;
+
+		__bch_submit_bbio(n, b->c);
+	}
+
+	return ret;
+}
+
+static void cache_lookup(struct closure *cl)
+{
+	struct btree_op *op = container_of(cl, struct btree_op, cl);
+	struct search *s = container_of(op, struct search, op);
+	struct bio *bio = &s->bio.bio;
+
+	int ret = bch_btree_map_keys(op, op->c,
+				     &KEY(op->inode, bio->bi_sector, 0),
+				     submit_partial_cache_hit, 1);
+	if (ret == -EAGAIN)
+		continue_at(cl, cache_lookup, bcache_wq);
+
+	closure_return(cl);
+}
+
+/* Common code for the make_request functions */
+
+static void request_endio(struct bio *bio, int error)
+{
+	struct closure *cl = bio->bi_private;
+
+	if (error) {
+		struct search *s = container_of(cl, struct search, cl);
+		s->error = error;
+		/* Only cache read errors are recoverable */
+		s->recoverable = false;
+	}
+
+	bio_put(bio);
+	closure_put(cl);
+}
+
 static void bio_complete(struct search *s)
 {
 	if (s->orig_bio) {
@@ -1005,15 +1104,14 @@ static void cached_dev_read_done_bh(struct closure *cl)
 static int cached_dev_cache_miss(struct btree *b, struct search *s,
 				 struct bio *bio, unsigned sectors)
 {
-	int ret = 0;
+	int ret = MAP_CONTINUE;
 	unsigned reada = 0;
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 	struct bio *miss, *cache_bio;
 
 	if (s->cache_miss || s->op.bypass) {
 		miss = bch_bio_split(bio, sectors, GFP_NOIO, s->d->bio_split);
-		if (miss == bio)
-			s->op.lookup_done = true;
+		ret = miss == bio ? MAP_DONE : MAP_CONTINUE;
 		goto out_submit;
 	}
 
@@ -1033,11 +1131,9 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
 		return ret;
 
 	miss = bch_bio_split(bio, sectors, GFP_NOIO, s->d->bio_split);
-	if (miss == bio)
-		s->op.lookup_done = true;
-	else
-		/* btree_search_recurse()'s btree iterator is no good anymore */
-		ret = -EINTR;
+
+	/* btree_search_recurse()'s btree iterator is no good anymore */
+	ret = miss == bio ? MAP_DONE : -EINTR;
 
 	cache_bio = bio_alloc_bioset(GFP_NOWAIT,
 			DIV_ROUND_UP(s->cache_bio_sectors, PAGE_SECTORS),
@@ -1075,7 +1171,7 @@ static void cached_dev_read(struct cached_dev *dc, struct search *s)
 {
 	struct closure *cl = &s->cl;
 
-	closure_call(&s->op.cl, bch_btree_search_async, NULL, cl);
+	closure_call(&s->op.cl, cache_lookup, NULL, cl);
 	continue_at(cl, cached_dev_read_done_bh, NULL);
 }
 
@@ -1287,9 +1383,9 @@ static int flash_dev_cache_miss(struct btree *b, struct search *s,
 	bio_advance(bio, min(sectors << 9, bio->bi_size));
 
 	if (!bio->bi_size)
-		s->op.lookup_done = true;
+		return MAP_DONE;
 
-	return 0;
+	return MAP_CONTINUE;
 }
 
 static void flash_dev_nodata(struct closure *cl)
@@ -1339,7 +1435,7 @@ static void flash_dev_make_request(struct request_queue *q, struct bio *bio)
 
 		closure_call(&s->op.cl, bch_data_insert, NULL, cl);
 	} else {
-		closure_call(&s->op.cl, bch_btree_search_async, NULL, cl);
+		closure_call(&s->op.cl, cache_lookup, NULL, cl);
 	}
 
 	continue_at(cl, search_free, NULL);
diff --git a/drivers/md/bcache/request.h b/drivers/md/bcache/request.h
index 7d02ac5f936e..b0b4b0b5b7e9 100644
--- a/drivers/md/bcache/request.h
+++ b/drivers/md/bcache/request.h
@@ -31,10 +31,8 @@ struct search {
 	struct keylist		insert_keys;
 };
 
-void bch_cache_read_endio(struct bio *, int);
 unsigned bch_get_congested(struct cache_set *);
 void bch_data_insert(struct closure *cl);
-void bch_cache_read_endio(struct bio *, int);
 
 void bch_open_buckets_free(struct cache_set *);
 int bch_open_buckets_alloc(struct cache_set *);
-- 
cgit 


From cc23196631fbcd1bc3eafedbb712413fdbf946a3 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 17:41:13 -0700
Subject: bcache: Clean up cache_lookup_fn

There was some looping in submit_partial_cache_hit() and
submit_partial_cache_hit() that isn't needed anymore - originally, we
wouldn't necessarily process the full hit or miss all at once because
when splitting the bio, we took into account the restrictions of the
device we were sending it to.

But, device bio size restrictions are now handled elsewhere, with a
wrapper around generic_make_request() - so that looping has been
unnecessary for awhile now and we can now do quite a bit of cleanup.

And if we trim the key we're reading from to match the subset we're
actually reading, we don't have to explicitly calculate bi_sector
anymore. Neat.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/request.c | 108 +++++++++++++++++++-------------------------
 1 file changed, 46 insertions(+), 62 deletions(-)

diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 854743e85e76..de3fc76ffcfc 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -663,86 +663,70 @@ static void bch_cache_read_endio(struct bio *bio, int error)
 	bch_bbio_endio(s->op.c, bio, error, "reading from cache");
 }
 
-static int submit_partial_cache_miss(struct btree *b, struct search *s,
-				     struct bkey *k)
-{
-	struct bio *bio = &s->bio.bio;
-	int ret = MAP_CONTINUE;
-
-	do {
-		unsigned sectors = INT_MAX;
-
-		if (KEY_INODE(k) == s->op.inode) {
-			if (KEY_START(k) <= bio->bi_sector)
-				break;
-
-			sectors = min_t(uint64_t, sectors,
-					KEY_START(k) - bio->bi_sector);
-		}
-
-		ret = s->d->cache_miss(b, s, bio, sectors);
-	} while (ret == MAP_CONTINUE);
-
-	return ret;
-}
-
 /*
  * Read from a single key, handling the initial cache miss if the key starts in
  * the middle of the bio
  */
-static int submit_partial_cache_hit(struct btree_op *op, struct btree *b,
-				    struct bkey *k)
+static int cache_lookup_fn(struct btree_op *op, struct btree *b, struct bkey *k)
 {
 	struct search *s = container_of(op, struct search, op);
-	struct bio *bio = &s->bio.bio;
+	struct bio *n, *bio = &s->bio.bio;
+	struct bkey *bio_key;
 	unsigned ptr;
-	struct bio *n;
 
-	int ret = submit_partial_cache_miss(b, s, k);
-	if (ret != MAP_CONTINUE || !KEY_SIZE(k))
-		return ret;
+	if (bkey_cmp(k, &KEY(op->inode, bio->bi_sector, 0)) <= 0)
+		return MAP_CONTINUE;
+
+	if (KEY_INODE(k) != s->op.inode ||
+	    KEY_START(k) > bio->bi_sector) {
+		unsigned bio_sectors = bio_sectors(bio);
+		unsigned sectors = KEY_INODE(k) == s->op.inode
+			? min_t(uint64_t, INT_MAX,
+				KEY_START(k) - bio->bi_sector)
+			: INT_MAX;
+
+		int ret = s->d->cache_miss(b, s, bio, sectors);
+		if (ret != MAP_CONTINUE)
+			return ret;
+
+		/* if this was a complete miss we shouldn't get here */
+		BUG_ON(bio_sectors <= sectors);
+	}
+
+	if (!KEY_SIZE(k))
+		return MAP_CONTINUE;
 
 	/* XXX: figure out best pointer - for multiple cache devices */
 	ptr = 0;
 
 	PTR_BUCKET(b->c, k, ptr)->prio = INITIAL_PRIO;
 
-	while (ret == MAP_CONTINUE &&
-	       KEY_INODE(k) == op->inode &&
-	       bio->bi_sector < KEY_OFFSET(k)) {
-		struct bkey *bio_key;
-		sector_t sector = PTR_OFFSET(k, ptr) +
-			(bio->bi_sector - KEY_START(k));
-		unsigned sectors = min_t(uint64_t, INT_MAX,
-					 KEY_OFFSET(k) - bio->bi_sector);
-
-		n = bch_bio_split(bio, sectors, GFP_NOIO, s->d->bio_split);
-		if (n == bio)
-			ret = MAP_DONE;
-
-		bio_key = &container_of(n, struct bbio, bio)->key;
+	n = bch_bio_split(bio, min_t(uint64_t, INT_MAX,
+				     KEY_OFFSET(k) - bio->bi_sector),
+			  GFP_NOIO, s->d->bio_split);
 
-		/*
-		 * The bucket we're reading from might be reused while our bio
-		 * is in flight, and we could then end up reading the wrong
-		 * data.
-		 *
-		 * We guard against this by checking (in cache_read_endio()) if
-		 * the pointer is stale again; if so, we treat it as an error
-		 * and reread from the backing device (but we don't pass that
-		 * error up anywhere).
-		 */
+	bio_key = &container_of(n, struct bbio, bio)->key;
+	bch_bkey_copy_single_ptr(bio_key, k, ptr);
 
-		bch_bkey_copy_single_ptr(bio_key, k, ptr);
-		SET_PTR_OFFSET(bio_key, 0, sector);
+	bch_cut_front(&KEY(s->op.inode, n->bi_sector, 0), bio_key);
+	bch_cut_back(&KEY(s->op.inode, bio_end_sector(n), 0), bio_key);
 
-		n->bi_end_io	= bch_cache_read_endio;
-		n->bi_private	= &s->cl;
+	n->bi_end_io	= bch_cache_read_endio;
+	n->bi_private	= &s->cl;
 
-		__bch_submit_bbio(n, b->c);
-	}
+	/*
+	 * The bucket we're reading from might be reused while our bio
+	 * is in flight, and we could then end up reading the wrong
+	 * data.
+	 *
+	 * We guard against this by checking (in cache_read_endio()) if
+	 * the pointer is stale again; if so, we treat it as an error
+	 * and reread from the backing device (but we don't pass that
+	 * error up anywhere).
+	 */
 
-	return ret;
+	__bch_submit_bbio(n, b->c);
+	return n == bio ? MAP_DONE : MAP_CONTINUE;
 }
 
 static void cache_lookup(struct closure *cl)
@@ -753,7 +737,7 @@ static void cache_lookup(struct closure *cl)
 
 	int ret = bch_btree_map_keys(op, op->c,
 				     &KEY(op->inode, bio->bi_sector, 0),
-				     submit_partial_cache_hit, 1);
+				     cache_lookup_fn, MAP_END_KEY);
 	if (ret == -EAGAIN)
 		continue_at(cl, cache_lookup, bcache_wq);
 
-- 
cgit 


From c18536a72ddd7fe30d63e6c1500b5c930ac14594 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 17:44:17 -0700
Subject: bcache: Prune struct btree_op

Eventual goal is for struct btree_op to contain only what is necessary
for traversing the btree.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bset.c      |   1 -
 drivers/md/bcache/btree.c     |  32 ++++----
 drivers/md/bcache/btree.h     |  21 +----
 drivers/md/bcache/journal.c   |  32 ++++----
 drivers/md/bcache/journal.h   |   9 +--
 drivers/md/bcache/movinggc.c  |  18 ++---
 drivers/md/bcache/request.c   | 177 +++++++++++++++++++++---------------------
 drivers/md/bcache/request.h   |  14 ++++
 drivers/md/bcache/stats.c     |   8 +-
 drivers/md/bcache/super.c     |  21 +++--
 drivers/md/bcache/writeback.c |  17 ++--
 11 files changed, 179 insertions(+), 171 deletions(-)

diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c
index 14c2a23d3884..fae5b7b3f5ab 100644
--- a/drivers/md/bcache/bset.c
+++ b/drivers/md/bcache/bset.c
@@ -1197,7 +1197,6 @@ int bch_bset_print_stats(struct cache_set *c, char *buf)
 
 	memset(&t, 0, sizeof(struct bset_stats));
 	bch_btree_op_init_stack(&t.op);
-	t.op.c = c;
 
 	ret = bch_btree_map_nodes(&t.op, c, &ZERO_KEY, btree_bset_stats);
 	if (ret < 0)
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 3949673cb1b0..5cb59c313dc3 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -503,7 +503,7 @@ static void btree_node_write_work(struct work_struct *w)
 	rw_unlock(true, b);
 }
 
-static void bch_btree_leaf_dirty(struct btree *b, struct btree_op *op)
+static void bch_btree_leaf_dirty(struct btree *b, atomic_t *journal_ref)
 {
 	struct bset *i = b->sets[b->nsets].data;
 	struct btree_write *w = btree_current_write(b);
@@ -516,15 +516,15 @@ static void bch_btree_leaf_dirty(struct btree *b, struct btree_op *op)
 
 	set_btree_node_dirty(b);
 
-	if (op->journal) {
+	if (journal_ref) {
 		if (w->journal &&
-		    journal_pin_cmp(b->c, w, op)) {
+		    journal_pin_cmp(b->c, w->journal, journal_ref)) {
 			atomic_dec_bug(w->journal);
 			w->journal = NULL;
 		}
 
 		if (!w->journal) {
-			w->journal = op->journal;
+			w->journal = journal_ref;
 			atomic_inc(w->journal);
 		}
 	}
@@ -1663,13 +1663,16 @@ static int bch_btree_check_recurse(struct btree *b, struct btree_op *op,
 	return 0;
 }
 
-int bch_btree_check(struct cache_set *c, struct btree_op *op)
+int bch_btree_check(struct cache_set *c)
 {
 	int ret = -ENOMEM;
 	unsigned i;
 	unsigned long *seen[MAX_CACHES_PER_SET];
+	struct btree_op op;
 
 	memset(seen, 0, sizeof(seen));
+	bch_btree_op_init_stack(&op);
+	op.lock = SHRT_MAX;
 
 	for (i = 0; c->cache[i]; i++) {
 		size_t n = DIV_ROUND_UP(c->cache[i]->sb.nbuckets, 8);
@@ -1681,7 +1684,7 @@ int bch_btree_check(struct cache_set *c, struct btree_op *op)
 		memset(seen[i], 0xFF, n);
 	}
 
-	ret = btree_root(check_recurse, c, op, seen);
+	ret = btree_root(check_recurse, c, &op, seen);
 err:
 	for (i = 0; i < MAX_CACHES_PER_SET; i++)
 		kfree(seen[i]);
@@ -2091,7 +2094,8 @@ err:
 }
 
 static int bch_btree_insert_node(struct btree *b, struct btree_op *op,
-				 struct keylist *insert_keys)
+				 struct keylist *insert_keys,
+				 atomic_t *journal_ref)
 {
 	int ret = 0;
 	struct keylist split_keys;
@@ -2123,7 +2127,7 @@ static int bch_btree_insert_node(struct btree *b, struct btree_op *op,
 
 			if (bch_btree_insert_keys(b, op, insert_keys)) {
 				if (!b->level)
-					bch_btree_leaf_dirty(b, op);
+					bch_btree_leaf_dirty(b, journal_ref);
 				else
 					bch_btree_node_write(b, &op->cl);
 			}
@@ -2162,7 +2166,7 @@ int bch_btree_insert_check_key(struct btree *b, struct btree_op *op,
 
 	BUG_ON(op->type != BTREE_INSERT);
 
-	ret = bch_btree_insert_node(b, op, &insert);
+	ret = bch_btree_insert_node(b, op, &insert, NULL);
 
 	BUG_ON(!ret && !bch_keylist_empty(&insert));
 out:
@@ -2172,7 +2176,7 @@ out:
 }
 
 static int bch_btree_insert_recurse(struct btree *b, struct btree_op *op,
-				    struct keylist *keys)
+				    struct keylist *keys, atomic_t *journal_ref)
 {
 	if (bch_keylist_empty(keys))
 		return 0;
@@ -2189,14 +2193,14 @@ static int bch_btree_insert_recurse(struct btree *b, struct btree_op *op,
 			return -EIO;
 		}
 
-		return btree(insert_recurse, k, b, op, keys);
+		return btree(insert_recurse, k, b, op, keys, journal_ref);
 	} else {
-		return bch_btree_insert_node(b, op, keys);
+		return bch_btree_insert_node(b, op, keys, journal_ref);
 	}
 }
 
 int bch_btree_insert(struct btree_op *op, struct cache_set *c,
-		     struct keylist *keys)
+		     struct keylist *keys, atomic_t *journal_ref)
 {
 	int ret = 0;
 
@@ -2210,7 +2214,7 @@ int bch_btree_insert(struct btree_op *op, struct cache_set *c,
 
 	while (!bch_keylist_empty(keys)) {
 		op->lock = 0;
-		ret = btree_root(insert_recurse, c, op, keys);
+		ret = btree_root(insert_recurse, c, op, keys, journal_ref);
 
 		if (ret == -EAGAIN) {
 			ret = 0;
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index 60dadd722ace..3f820b67150c 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -238,17 +238,6 @@ void __bkey_put(struct cache_set *c, struct bkey *k);
 
 struct btree_op {
 	struct closure		cl;
-	struct cache_set	*c;
-
-	/* Journal entry we have a refcount on */
-	atomic_t		*journal;
-
-	/* Bio to be inserted into the cache */
-	struct bio		*cache_bio;
-
-	unsigned		inode;
-
-	uint16_t		write_prio;
 
 	/* Btree level at which we start taking write locks */
 	short			lock;
@@ -259,11 +248,6 @@ struct btree_op {
 		BTREE_REPLACE
 	} type:8;
 
-	unsigned		csum:1;
-	unsigned		bypass:1;
-	unsigned		flush_journal:1;
-
-	unsigned		insert_data_done:1;
 	unsigned		insert_collision:1;
 
 	BKEY_PADDED(replace);
@@ -303,12 +287,13 @@ struct btree *bch_btree_node_get(struct cache_set *, struct bkey *, int, bool);
 
 int bch_btree_insert_check_key(struct btree *, struct btree_op *,
 			       struct bkey *);
-int bch_btree_insert(struct btree_op *, struct cache_set *, struct keylist *);
+int bch_btree_insert(struct btree_op *, struct cache_set *,
+		     struct keylist *, atomic_t *);
 
 int bch_gc_thread_start(struct cache_set *);
 size_t bch_btree_gc_finish(struct cache_set *);
 void bch_moving_gc(struct cache_set *);
-int bch_btree_check(struct cache_set *, struct btree_op *);
+int bch_btree_check(struct cache_set *);
 uint8_t __bch_btree_mark_key(struct cache_set *, int, struct bkey *);
 
 static inline void wake_up_gc(struct cache_set *c)
diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index 6f4daf031410..725c8eb9a62a 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -30,17 +30,20 @@ static void journal_read_endio(struct bio *bio, int error)
 }
 
 static int journal_read_bucket(struct cache *ca, struct list_head *list,
-			       struct btree_op *op, unsigned bucket_index)
+			       unsigned bucket_index)
 {
 	struct journal_device *ja = &ca->journal;
 	struct bio *bio = &ja->bio;
 
 	struct journal_replay *i;
 	struct jset *j, *data = ca->set->journal.w[0].data;
+	struct closure cl;
 	unsigned len, left, offset = 0;
 	int ret = 0;
 	sector_t bucket = bucket_to_sector(ca->set, ca->sb.d[bucket_index]);
 
+	closure_init_stack(&cl);
+
 	pr_debug("reading %llu", (uint64_t) bucket);
 
 	while (offset < ca->sb.bucket_size) {
@@ -54,11 +57,11 @@ reread:		left = ca->sb.bucket_size - offset;
 		bio->bi_size	= len << 9;
 
 		bio->bi_end_io	= journal_read_endio;
-		bio->bi_private = &op->cl;
+		bio->bi_private = &cl;
 		bch_bio_map(bio, data);
 
-		closure_bio_submit(bio, &op->cl, ca);
-		closure_sync(&op->cl);
+		closure_bio_submit(bio, &cl, ca);
+		closure_sync(&cl);
 
 		/* This function could be simpler now since we no longer write
 		 * journal entries that overlap bucket boundaries; this means
@@ -128,12 +131,11 @@ next_set:
 	return ret;
 }
 
-int bch_journal_read(struct cache_set *c, struct list_head *list,
-			struct btree_op *op)
+int bch_journal_read(struct cache_set *c, struct list_head *list)
 {
 #define read_bucket(b)							\
 	({								\
-		int ret = journal_read_bucket(ca, list, op, b);		\
+		int ret = journal_read_bucket(ca, list, b);		\
 		__set_bit(b, bitmap);					\
 		if (ret < 0)						\
 			return ret;					\
@@ -291,8 +293,7 @@ void bch_journal_mark(struct cache_set *c, struct list_head *list)
 	}
 }
 
-int bch_journal_replay(struct cache_set *s, struct list_head *list,
-			  struct btree_op *op)
+int bch_journal_replay(struct cache_set *s, struct list_head *list)
 {
 	int ret = 0, keys = 0, entries = 0;
 	struct bkey *k;
@@ -301,8 +302,11 @@ int bch_journal_replay(struct cache_set *s, struct list_head *list,
 
 	uint64_t start = i->j.last_seq, end = i->j.seq, n = start;
 	struct keylist keylist;
+	struct btree_op op;
 
 	bch_keylist_init(&keylist);
+	bch_btree_op_init_stack(&op);
+	op.lock = SHRT_MAX;
 
 	list_for_each_entry(i, list, list) {
 		BUG_ON(i->pin && atomic_read(i->pin) != 1);
@@ -319,9 +323,7 @@ int bch_journal_replay(struct cache_set *s, struct list_head *list,
 			bkey_copy(keylist.top, k);
 			bch_keylist_push(&keylist);
 
-			op->journal = i->pin;
-
-			ret = bch_btree_insert(op, s, &keylist);
+			ret = bch_btree_insert(&op, s, &keylist, i->pin);
 			if (ret)
 				goto err;
 
@@ -346,7 +348,7 @@ int bch_journal_replay(struct cache_set *s, struct list_head *list,
 		kfree(i);
 	}
 err:
-	closure_sync(&op->cl);
+	closure_sync(&op.cl);
 	return ret;
 }
 
@@ -368,8 +370,8 @@ retry:
 			if (!best)
 				best = b;
 			else if (journal_pin_cmp(c,
-						 btree_current_write(best),
-						 btree_current_write(b))) {
+					btree_current_write(best)->journal,
+					btree_current_write(b)->journal)) {
 				best = b;
 			}
 		}
diff --git a/drivers/md/bcache/journal.h b/drivers/md/bcache/journal.h
index 7045e6fd2d5a..5e9edb9ef376 100644
--- a/drivers/md/bcache/journal.h
+++ b/drivers/md/bcache/journal.h
@@ -189,8 +189,7 @@ struct journal_device {
 };
 
 #define journal_pin_cmp(c, l, r)				\
-	(fifo_idx(&(c)->journal.pin, (l)->journal) >		\
-	 fifo_idx(&(c)->journal.pin, (r)->journal))
+	(fifo_idx(&(c)->journal.pin, (l)) > fifo_idx(&(c)->journal.pin, (r)))
 
 #define JOURNAL_PIN	20000
 
@@ -206,10 +205,8 @@ atomic_t *bch_journal(struct cache_set *, struct keylist *, struct closure *);
 void bch_journal_next(struct journal *);
 void bch_journal_mark(struct cache_set *, struct list_head *);
 void bch_journal_meta(struct cache_set *, struct closure *);
-int bch_journal_read(struct cache_set *, struct list_head *,
-			struct btree_op *);
-int bch_journal_replay(struct cache_set *, struct list_head *,
-			  struct btree_op *);
+int bch_journal_read(struct cache_set *, struct list_head *);
+int bch_journal_replay(struct cache_set *, struct list_head *);
 
 void bch_journal_free(struct cache_set *);
 int bch_journal_alloc(struct cache_set *);
diff --git a/drivers/md/bcache/movinggc.c b/drivers/md/bcache/movinggc.c
index 6ba050456ec8..80e30d77221e 100644
--- a/drivers/md/bcache/movinggc.c
+++ b/drivers/md/bcache/movinggc.c
@@ -55,9 +55,9 @@ static void write_moving_finish(struct closure *cl)
 	if (io->s.op.insert_collision)
 		trace_bcache_gc_copy_collision(&io->w->key);
 
-	bch_keybuf_del(&io->s.op.c->moving_gc_keys, io->w);
+	bch_keybuf_del(&io->s.c->moving_gc_keys, io->w);
 
-	up(&io->s.op.c->moving_in_flight);
+	up(&io->s.c->moving_in_flight);
 
 	closure_return_with_destructor(cl, moving_io_destructor);
 }
@@ -70,7 +70,7 @@ static void read_moving_endio(struct bio *bio, int error)
 	if (error)
 		io->s.error = error;
 
-	bch_bbio_endio(io->s.op.c, bio, error, "reading data to move");
+	bch_bbio_endio(io->s.c, bio, error, "reading data to move");
 }
 
 static void moving_init(struct moving_io *io)
@@ -99,11 +99,11 @@ static void write_moving(struct closure *cl)
 
 		io->bio.bio.bi_sector	= KEY_START(&io->w->key);
 		s->op.lock		= -1;
-		s->op.write_prio	= 1;
-		s->op.cache_bio		= &io->bio.bio;
+		s->write_prio		= 1;
+		s->cache_bio		= &io->bio.bio;
 
 		s->writeback		= KEY_DIRTY(&io->w->key);
-		s->op.csum		= KEY_CSUM(&io->w->key);
+		s->csum			= KEY_CSUM(&io->w->key);
 
 		s->op.type = BTREE_REPLACE;
 		bkey_copy(&s->op.replace, &io->w->key);
@@ -121,7 +121,7 @@ static void read_moving_submit(struct closure *cl)
 	struct moving_io *io = container_of(s, struct moving_io, s);
 	struct bio *bio = &io->bio.bio;
 
-	bch_submit_bbio(bio, s->op.c, &io->w->key, 0);
+	bch_submit_bbio(bio, s->c, &io->w->key, 0);
 
 	continue_at(cl, write_moving, system_wq);
 }
@@ -151,8 +151,8 @@ static void read_moving(struct cache_set *c)
 
 		w->private	= io;
 		io->w		= w;
-		io->s.op.inode	= KEY_INODE(&w->key);
-		io->s.op.c	= c;
+		io->s.inode	= KEY_INODE(&w->key);
+		io->s.c		= c;
 
 		moving_init(io);
 		bio = &io->bio.bio;
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index de3fc76ffcfc..818e2e39e71f 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -217,6 +217,7 @@ static void bch_data_insert_keys(struct closure *cl)
 {
 	struct btree_op *op = container_of(cl, struct btree_op, cl);
 	struct search *s = container_of(op, struct search, op);
+	atomic_t *journal_ref = NULL;
 
 	/*
 	 * If we're looping, might already be waiting on
@@ -231,20 +232,19 @@ static void bch_data_insert_keys(struct closure *cl)
 #endif
 
 	if (s->write)
-		op->journal = bch_journal(op->c, &s->insert_keys,
-					  op->flush_journal
+		journal_ref = bch_journal(s->c, &s->insert_keys,
+					  s->flush_journal
 					  ? &s->cl : NULL);
 
-	if (bch_btree_insert(op, op->c, &s->insert_keys)) {
+	if (bch_btree_insert(op, s->c, &s->insert_keys, journal_ref)) {
 		s->error		= -ENOMEM;
-		op->insert_data_done	= true;
+		s->insert_data_done	= true;
 	}
 
-	if (op->journal)
-		atomic_dec_bug(op->journal);
-	op->journal = NULL;
+	if (journal_ref)
+		atomic_dec_bug(journal_ref);
 
-	if (!op->insert_data_done)
+	if (!s->insert_data_done)
 		continue_at(cl, bch_data_insert_start, bcache_wq);
 
 	bch_keylist_free(&s->insert_keys);
@@ -347,7 +347,7 @@ found:
 static bool bch_alloc_sectors(struct bkey *k, unsigned sectors,
 			      struct search *s)
 {
-	struct cache_set *c = s->op.c;
+	struct cache_set *c = s->c;
 	struct open_bucket *b;
 	BKEY_PADDED(key) alloc;
 	unsigned i;
@@ -363,7 +363,7 @@ static bool bch_alloc_sectors(struct bkey *k, unsigned sectors,
 	spin_lock(&c->data_bucket_lock);
 
 	while (!(b = pick_data_bucket(c, k, s->task, &alloc.key))) {
-		unsigned watermark = s->op.write_prio
+		unsigned watermark = s->write_prio
 			? WATERMARK_MOVINGGC
 			: WATERMARK_NONE;
 
@@ -435,7 +435,7 @@ static void bch_data_invalidate(struct closure *cl)
 {
 	struct btree_op *op = container_of(cl, struct btree_op, cl);
 	struct search *s = container_of(op, struct search, op);
-	struct bio *bio = op->cache_bio;
+	struct bio *bio = s->cache_bio;
 
 	pr_debug("invalidating %i sectors from %llu",
 		 bio_sectors(bio), (uint64_t) bio->bi_sector);
@@ -443,17 +443,17 @@ static void bch_data_invalidate(struct closure *cl)
 	while (bio_sectors(bio)) {
 		unsigned len = min(bio_sectors(bio), 1U << 14);
 
-		if (bch_keylist_realloc(&s->insert_keys, 0, op->c))
+		if (bch_keylist_realloc(&s->insert_keys, 0, s->c))
 			goto out;
 
 		bio->bi_sector	+= len;
 		bio->bi_size	-= len << 9;
 
 		bch_keylist_add(&s->insert_keys,
-				&KEY(op->inode, bio->bi_sector, len));
+				&KEY(s->inode, bio->bi_sector, len));
 	}
 
-	op->insert_data_done = true;
+	s->insert_data_done = true;
 	bio_put(bio);
 out:
 	continue_at(cl, bch_data_insert_keys, bcache_wq);
@@ -506,21 +506,21 @@ static void bch_data_insert_endio(struct bio *bio, int error)
 			set_closure_fn(cl, NULL, NULL);
 	}
 
-	bch_bbio_endio(op->c, bio, error, "writing data to cache");
+	bch_bbio_endio(s->c, bio, error, "writing data to cache");
 }
 
 static void bch_data_insert_start(struct closure *cl)
 {
 	struct btree_op *op = container_of(cl, struct btree_op, cl);
 	struct search *s = container_of(op, struct search, op);
-	struct bio *bio = op->cache_bio, *n;
+	struct bio *bio = s->cache_bio, *n;
 
-	if (op->bypass)
+	if (s->bypass)
 		return bch_data_invalidate(cl);
 
-	if (atomic_sub_return(bio_sectors(bio), &op->c->sectors_to_gc) < 0) {
-		set_gc_sectors(op->c);
-		wake_up_gc(op->c);
+	if (atomic_sub_return(bio_sectors(bio), &s->c->sectors_to_gc) < 0) {
+		set_gc_sectors(s->c);
+		wake_up_gc(s->c);
 	}
 
 	/*
@@ -533,17 +533,17 @@ static void bch_data_insert_start(struct closure *cl)
 		unsigned i;
 		struct bkey *k;
 		struct bio_set *split = s->d
-			? s->d->bio_split : op->c->bio_split;
+			? s->d->bio_split : s->c->bio_split;
 
 		/* 1 for the device pointer and 1 for the chksum */
 		if (bch_keylist_realloc(&s->insert_keys,
-					1 + (op->csum ? 1 : 0),
-					op->c))
+					1 + (s->csum ? 1 : 0),
+					s->c))
 			continue_at(cl, bch_data_insert_keys, bcache_wq);
 
 		k = s->insert_keys.top;
 		bkey_init(k);
-		SET_KEY_INODE(k, op->inode);
+		SET_KEY_INODE(k, s->inode);
 		SET_KEY_OFFSET(k, bio->bi_sector);
 
 		if (!bch_alloc_sectors(k, bio_sectors(bio), s))
@@ -558,11 +558,11 @@ static void bch_data_insert_start(struct closure *cl)
 			SET_KEY_DIRTY(k, true);
 
 			for (i = 0; i < KEY_PTRS(k); i++)
-				SET_GC_MARK(PTR_BUCKET(op->c, k, i),
+				SET_GC_MARK(PTR_BUCKET(s->c, k, i),
 					    GC_MARK_DIRTY);
 		}
 
-		SET_KEY_CSUM(k, op->csum);
+		SET_KEY_CSUM(k, s->csum);
 		if (KEY_CSUM(k))
 			bio_csum(n, k);
 
@@ -570,10 +570,10 @@ static void bch_data_insert_start(struct closure *cl)
 		bch_keylist_push(&s->insert_keys);
 
 		n->bi_rw |= REQ_WRITE;
-		bch_submit_bbio(n, op->c, k, 0);
+		bch_submit_bbio(n, s->c, k, 0);
 	} while (n != bio);
 
-	op->insert_data_done = true;
+	s->insert_data_done = true;
 	continue_at(cl, bch_data_insert_keys, bcache_wq);
 err:
 	/* bch_alloc_sectors() blocks if s->writeback = true */
@@ -592,14 +592,14 @@ err:
 		 * we wait for buckets to be freed up, so just invalidate the
 		 * rest of the write.
 		 */
-		op->bypass = true;
+		s->bypass = true;
 		return bch_data_invalidate(cl);
 	} else {
 		/*
 		 * From a cache miss, we can just insert the keys for the data
 		 * we have written or bail out if we didn't do anything.
 		 */
-		op->insert_data_done = true;
+		s->insert_data_done = true;
 		bio_put(bio);
 
 		if (!bch_keylist_empty(&s->insert_keys))
@@ -622,11 +622,11 @@ err:
  * data is written it calls bch_journal, and after the keys have been added to
  * the next journal write they're inserted into the btree.
  *
- * It inserts the data in op->cache_bio; bi_sector is used for the key offset,
+ * It inserts the data in s->cache_bio; bi_sector is used for the key offset,
  * and op->inode is used for the key inode.
  *
- * If op->bypass is true, instead of inserting the data it invalidates the
- * region of the cache represented by op->cache_bio and op->inode.
+ * If s->bypass is true, instead of inserting the data it invalidates the
+ * region of the cache represented by s->cache_bio and op->inode.
  */
 void bch_data_insert(struct closure *cl)
 {
@@ -634,7 +634,7 @@ void bch_data_insert(struct closure *cl)
 	struct search *s = container_of(op, struct search, op);
 
 	bch_keylist_init(&s->insert_keys);
-	bio_get(op->cache_bio);
+	bio_get(s->cache_bio);
 	bch_data_insert_start(cl);
 }
 
@@ -655,12 +655,12 @@ static void bch_cache_read_endio(struct bio *bio, int error)
 
 	if (error)
 		s->error = error;
-	else if (ptr_stale(s->op.c, &b->key, 0)) {
-		atomic_long_inc(&s->op.c->cache_read_races);
+	else if (ptr_stale(s->c, &b->key, 0)) {
+		atomic_long_inc(&s->c->cache_read_races);
 		s->error = -EINTR;
 	}
 
-	bch_bbio_endio(s->op.c, bio, error, "reading from cache");
+	bch_bbio_endio(s->c, bio, error, "reading from cache");
 }
 
 /*
@@ -674,13 +674,13 @@ static int cache_lookup_fn(struct btree_op *op, struct btree *b, struct bkey *k)
 	struct bkey *bio_key;
 	unsigned ptr;
 
-	if (bkey_cmp(k, &KEY(op->inode, bio->bi_sector, 0)) <= 0)
+	if (bkey_cmp(k, &KEY(s->inode, bio->bi_sector, 0)) <= 0)
 		return MAP_CONTINUE;
 
-	if (KEY_INODE(k) != s->op.inode ||
+	if (KEY_INODE(k) != s->inode ||
 	    KEY_START(k) > bio->bi_sector) {
 		unsigned bio_sectors = bio_sectors(bio);
-		unsigned sectors = KEY_INODE(k) == s->op.inode
+		unsigned sectors = KEY_INODE(k) == s->inode
 			? min_t(uint64_t, INT_MAX,
 				KEY_START(k) - bio->bi_sector)
 			: INT_MAX;
@@ -708,8 +708,8 @@ static int cache_lookup_fn(struct btree_op *op, struct btree *b, struct bkey *k)
 	bio_key = &container_of(n, struct bbio, bio)->key;
 	bch_bkey_copy_single_ptr(bio_key, k, ptr);
 
-	bch_cut_front(&KEY(s->op.inode, n->bi_sector, 0), bio_key);
-	bch_cut_back(&KEY(s->op.inode, bio_end_sector(n), 0), bio_key);
+	bch_cut_front(&KEY(s->inode, n->bi_sector, 0), bio_key);
+	bch_cut_back(&KEY(s->inode, bio_end_sector(n), 0), bio_key);
 
 	n->bi_end_io	= bch_cache_read_endio;
 	n->bi_private	= &s->cl;
@@ -735,8 +735,8 @@ static void cache_lookup(struct closure *cl)
 	struct search *s = container_of(op, struct search, op);
 	struct bio *bio = &s->bio.bio;
 
-	int ret = bch_btree_map_keys(op, op->c,
-				     &KEY(op->inode, bio->bi_sector, 0),
+	int ret = bch_btree_map_keys(op, s->c,
+				     &KEY(s->inode, bio->bi_sector, 0),
 				     cache_lookup_fn, MAP_END_KEY);
 	if (ret == -EAGAIN)
 		continue_at(cl, cache_lookup, bcache_wq);
@@ -793,8 +793,8 @@ static void search_free(struct closure *cl)
 	struct search *s = container_of(cl, struct search, cl);
 	bio_complete(s);
 
-	if (s->op.cache_bio)
-		bio_put(s->op.cache_bio);
+	if (s->cache_bio)
+		bio_put(s->cache_bio);
 
 	if (s->unaligned_bvec)
 		mempool_free(s->bio.bio.bi_io_vec, s->d->unaligned_bvec);
@@ -813,14 +813,14 @@ static struct search *search_alloc(struct bio *bio, struct bcache_device *d)
 
 	__closure_init(&s->cl, NULL);
 
-	s->op.inode		= d->id;
-	s->op.c			= d->c;
+	s->inode		= d->id;
+	s->c			= d->c;
 	s->d			= d;
 	s->op.lock		= -1;
 	s->task			= current;
 	s->orig_bio		= bio;
 	s->write		= (bio->bi_rw & REQ_WRITE) != 0;
-	s->op.flush_journal	= (bio->bi_rw & (REQ_FLUSH|REQ_FUA)) != 0;
+	s->flush_journal	= (bio->bi_rw & (REQ_FLUSH|REQ_FUA)) != 0;
 	s->recoverable		= 1;
 	s->start_time		= jiffies;
 	do_bio_hook(s);
@@ -891,7 +891,7 @@ static struct hlist_head *iohash(struct cached_dev *dc, uint64_t k)
 
 static bool check_should_bypass(struct cached_dev *dc, struct search *s)
 {
-	struct cache_set *c = s->op.c;
+	struct cache_set *c = s->c;
 	struct bio *bio = &s->bio.bio;
 	unsigned mode = cache_mode(dc, bio);
 	unsigned sectors, congested = bch_get_congested(c);
@@ -985,11 +985,11 @@ static void cached_dev_cache_miss_done(struct closure *cl)
 	if (s->op.insert_collision)
 		bch_mark_cache_miss_collision(s);
 
-	if (s->op.cache_bio) {
+	if (s->cache_bio) {
 		int i;
 		struct bio_vec *bv;
 
-		__bio_for_each_segment(bv, s->op.cache_bio, i, 0)
+		bio_for_each_segment_all(bv, s->cache_bio, i)
 			__free_page(bv->bv_page);
 	}
 
@@ -1042,14 +1042,15 @@ static void cached_dev_read_done(struct closure *cl)
 	 * to the buffers the original bio pointed to:
 	 */
 
-	if (s->op.cache_bio) {
-		bio_reset(s->op.cache_bio);
-		s->op.cache_bio->bi_sector	= s->cache_miss->bi_sector;
-		s->op.cache_bio->bi_bdev	= s->cache_miss->bi_bdev;
-		s->op.cache_bio->bi_size	= s->cache_bio_sectors << 9;
-		bch_bio_map(s->op.cache_bio, NULL);
+	if (s->cache_bio) {
+		bio_reset(s->cache_bio);
+		s->cache_bio->bi_sector =
+			s->cache_miss->bi_sector;
+		s->cache_bio->bi_bdev = s->cache_miss->bi_bdev;
+		s->cache_bio->bi_size = s->cache_bio_sectors << 9;
+		bch_bio_map(s->cache_bio, NULL);
 
-		bio_copy_data(s->cache_miss, s->op.cache_bio);
+		bio_copy_data(s->cache_miss, s->cache_bio);
 
 		bio_put(s->cache_miss);
 		s->cache_miss = NULL;
@@ -1060,8 +1061,8 @@ static void cached_dev_read_done(struct closure *cl)
 
 	bio_complete(s);
 
-	if (s->op.cache_bio &&
-	    !test_bit(CACHE_SET_STOPPING, &s->op.c->flags)) {
+	if (s->cache_bio &&
+	    !test_bit(CACHE_SET_STOPPING, &s->c->flags)) {
 		s->op.type = BTREE_REPLACE;
 		closure_call(&s->op.cl, bch_data_insert, NULL, cl);
 	}
@@ -1074,12 +1075,12 @@ static void cached_dev_read_done_bh(struct closure *cl)
 	struct search *s = container_of(cl, struct search, cl);
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 
-	bch_mark_cache_accounting(s, !s->cache_miss, s->op.bypass);
-	trace_bcache_read(s->orig_bio, !s->cache_miss, s->op.bypass);
+	bch_mark_cache_accounting(s, !s->cache_miss, s->bypass);
+	trace_bcache_read(s->orig_bio, !s->cache_miss, s->bypass);
 
 	if (s->error)
 		continue_at_nobarrier(cl, cached_dev_read_error, bcache_wq);
-	else if (s->op.cache_bio || verify(dc, &s->bio.bio))
+	else if (s->cache_bio || verify(dc, &s->bio.bio))
 		continue_at_nobarrier(cl, cached_dev_read_done, bcache_wq);
 	else
 		continue_at_nobarrier(cl, cached_dev_bio_complete, NULL);
@@ -1093,7 +1094,7 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 	struct bio *miss, *cache_bio;
 
-	if (s->cache_miss || s->op.bypass) {
+	if (s->cache_miss || s->bypass) {
 		miss = bch_bio_split(bio, sectors, GFP_NOIO, s->d->bio_split);
 		ret = miss == bio ? MAP_DONE : MAP_CONTINUE;
 		goto out_submit;
@@ -1101,13 +1102,13 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
 
 	if (!(bio->bi_rw & REQ_RAHEAD) &&
 	    !(bio->bi_rw & REQ_META) &&
-	    s->op.c->gc_stats.in_use < CUTOFF_CACHE_READA)
+	    s->c->gc_stats.in_use < CUTOFF_CACHE_READA)
 		reada = min_t(sector_t, dc->readahead >> 9,
 			      bdev_sectors(bio->bi_bdev) - bio_end_sector(bio));
 
 	s->cache_bio_sectors = min(sectors, bio_sectors(bio) + reada);
 
-	s->op.replace = KEY(s->op.inode, bio->bi_sector +
+	s->op.replace = KEY(s->inode, bio->bi_sector +
 			    s->cache_bio_sectors, s->cache_bio_sectors);
 
 	ret = bch_btree_insert_check_key(b, &s->op, &s->op.replace);
@@ -1137,7 +1138,7 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
 		goto out_put;
 
 	s->cache_miss	= miss;
-	s->op.cache_bio = cache_bio;
+	s->cache_bio = cache_bio;
 	bio_get(cache_bio);
 	closure_bio_submit(cache_bio, &s->cl, s->d);
 
@@ -1177,7 +1178,7 @@ static void cached_dev_write(struct cached_dev *dc, struct search *s)
 	struct bkey start = KEY(dc->disk.id, bio->bi_sector, 0);
 	struct bkey end = KEY(dc->disk.id, bio_end_sector(bio), 0);
 
-	bch_keybuf_check_overlapping(&s->op.c->moving_gc_keys, &start, &end);
+	bch_keybuf_check_overlapping(&s->c->moving_gc_keys, &start, &end);
 
 	down_read_non_owner(&dc->writeback_lock);
 	if (bch_keybuf_check_overlapping(&dc->writeback_keys, &start, &end)) {
@@ -1185,7 +1186,7 @@ static void cached_dev_write(struct cached_dev *dc, struct search *s)
 		 * We overlap with some dirty data undergoing background
 		 * writeback, force this write to writeback
 		 */
-		s->op.bypass	= false;
+		s->bypass	= false;
 		s->writeback	= true;
 	}
 
@@ -1197,27 +1198,27 @@ static void cached_dev_write(struct cached_dev *dc, struct search *s)
 	 * so we still want to call it.
 	 */
 	if (bio->bi_rw & REQ_DISCARD)
-		s->op.bypass = true;
+		s->bypass = true;
 
 	if (should_writeback(dc, s->orig_bio,
 			     cache_mode(dc, bio),
-			     s->op.bypass)) {
-		s->op.bypass = false;
+			     s->bypass)) {
+		s->bypass = false;
 		s->writeback = true;
 	}
 
-	trace_bcache_write(s->orig_bio, s->writeback, s->op.bypass);
+	trace_bcache_write(s->orig_bio, s->writeback, s->bypass);
 
-	if (s->op.bypass) {
-		s->op.cache_bio = s->orig_bio;
-		bio_get(s->op.cache_bio);
+	if (s->bypass) {
+		s->cache_bio = s->orig_bio;
+		bio_get(s->cache_bio);
 
 		if (!(bio->bi_rw & REQ_DISCARD) ||
 		    blk_queue_discard(bdev_get_queue(dc->bdev)))
 			closure_bio_submit(bio, cl, s->d);
 	} else if (s->writeback) {
 		bch_writeback_add(dc);
-		s->op.cache_bio = bio;
+		s->cache_bio = bio;
 
 		if (bio->bi_rw & REQ_FLUSH) {
 			/* Also need to send a flush to the backing device */
@@ -1232,8 +1233,8 @@ static void cached_dev_write(struct cached_dev *dc, struct search *s)
 			closure_bio_submit(flush, cl, s->d);
 		}
 	} else {
-		s->op.cache_bio = bio_clone_bioset(bio, GFP_NOIO,
-						   dc->disk.bio_split);
+		s->cache_bio = bio_clone_bioset(bio, GFP_NOIO,
+						dc->disk.bio_split);
 
 		closure_bio_submit(bio, cl, s->d);
 	}
@@ -1247,8 +1248,8 @@ static void cached_dev_nodata(struct closure *cl)
 	struct search *s = container_of(cl, struct search, cl);
 	struct bio *bio = &s->bio.bio;
 
-	if (s->op.flush_journal)
-		bch_journal_meta(s->op.c, cl);
+	if (s->flush_journal)
+		bch_journal_meta(s->c, cl);
 
 	/* If it's a flush, we send the flush to the backing device too */
 	closure_bio_submit(bio, cl, s->d);
@@ -1286,7 +1287,7 @@ static void cached_dev_make_request(struct request_queue *q, struct bio *bio)
 					      cached_dev_nodata,
 					      bcache_wq);
 		} else {
-			s->op.bypass = check_should_bypass(dc, s);
+			s->bypass = check_should_bypass(dc, s);
 
 			if (rw)
 				cached_dev_write(dc, s);
@@ -1376,8 +1377,8 @@ static void flash_dev_nodata(struct closure *cl)
 {
 	struct search *s = container_of(cl, struct search, cl);
 
-	if (s->op.flush_journal)
-		bch_journal_meta(s->op.c, cl);
+	if (s->flush_journal)
+		bch_journal_meta(s->c, cl);
 
 	continue_at(cl, search_free, NULL);
 }
@@ -1409,13 +1410,13 @@ static void flash_dev_make_request(struct request_queue *q, struct bio *bio)
 				      flash_dev_nodata,
 				      bcache_wq);
 	} else if (rw) {
-		bch_keybuf_check_overlapping(&s->op.c->moving_gc_keys,
+		bch_keybuf_check_overlapping(&s->c->moving_gc_keys,
 					&KEY(d->id, bio->bi_sector, 0),
 					&KEY(d->id, bio_end_sector(bio), 0));
 
-		s->op.bypass	= (bio->bi_rw & REQ_DISCARD) != 0;
+		s->bypass	= (bio->bi_rw & REQ_DISCARD) != 0;
 		s->writeback	= true;
-		s->op.cache_bio	= bio;
+		s->cache_bio	= bio;
 
 		closure_call(&s->op.cl, bch_data_insert, NULL, cl);
 	} else {
diff --git a/drivers/md/bcache/request.h b/drivers/md/bcache/request.h
index b0b4b0b5b7e9..0f79177c4f33 100644
--- a/drivers/md/bcache/request.h
+++ b/drivers/md/bcache/request.h
@@ -8,19 +8,33 @@ struct search {
 	struct closure		cl;
 
 	struct bcache_device	*d;
+	struct cache_set	*c;
 	struct task_struct	*task;
 
 	struct bbio		bio;
 	struct bio		*orig_bio;
 	struct bio		*cache_miss;
+
+	/* Bio to be inserted into the cache */
+	struct bio		*cache_bio;
 	unsigned		cache_bio_sectors;
 
+	unsigned		inode;
+
 	unsigned		recoverable:1;
 	unsigned		unaligned_bvec:1;
 
 	unsigned		write:1;
 	unsigned		writeback:1;
 
+	unsigned		csum:1;
+	unsigned		bypass:1;
+	unsigned		flush_journal:1;
+
+	unsigned		insert_data_done:1;
+
+	uint16_t		write_prio;
+
 	/* IO error returned to s->bio */
 	short			error;
 	unsigned long		start_time;
diff --git a/drivers/md/bcache/stats.c b/drivers/md/bcache/stats.c
index b8730e714d69..ea77263cf7ef 100644
--- a/drivers/md/bcache/stats.c
+++ b/drivers/md/bcache/stats.c
@@ -200,7 +200,7 @@ void bch_mark_cache_accounting(struct search *s, bool hit, bool bypass)
 {
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 	mark_cache_stats(&dc->accounting.collector, hit, bypass);
-	mark_cache_stats(&s->op.c->accounting.collector, hit, bypass);
+	mark_cache_stats(&s->c->accounting.collector, hit, bypass);
 #ifdef CONFIG_CGROUP_BCACHE
 	mark_cache_stats(&(bch_bio_to_cgroup(s->orig_bio)->stats), hit, bypass);
 #endif
@@ -210,21 +210,21 @@ void bch_mark_cache_readahead(struct search *s)
 {
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 	atomic_inc(&dc->accounting.collector.cache_readaheads);
-	atomic_inc(&s->op.c->accounting.collector.cache_readaheads);
+	atomic_inc(&s->c->accounting.collector.cache_readaheads);
 }
 
 void bch_mark_cache_miss_collision(struct search *s)
 {
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 	atomic_inc(&dc->accounting.collector.cache_miss_collisions);
-	atomic_inc(&s->op.c->accounting.collector.cache_miss_collisions);
+	atomic_inc(&s->c->accounting.collector.cache_miss_collisions);
 }
 
 void bch_mark_sectors_bypassed(struct search *s, int sectors)
 {
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 	atomic_add(sectors, &dc->accounting.collector.sectors_bypassed);
-	atomic_add(sectors, &s->op.c->accounting.collector.sectors_bypassed);
+	atomic_add(sectors, &s->c->accounting.collector.sectors_bypassed);
 }
 
 void bch_cache_accounting_init(struct cache_accounting *acc,
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index b79dd5a6679e..a314c771263f 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1493,11 +1493,10 @@ static void run_cache_set(struct cache_set *c)
 	const char *err = "cannot allocate memory";
 	struct cached_dev *dc, *t;
 	struct cache *ca;
+	struct closure cl;
 	unsigned i;
 
-	struct btree_op op;
-	bch_btree_op_init_stack(&op);
-	op.lock = SHRT_MAX;
+	closure_init_stack(&cl);
 
 	for_each_cache(ca, c, i)
 		c->nbuckets += ca->sb.nbuckets;
@@ -1508,7 +1507,7 @@ static void run_cache_set(struct cache_set *c)
 		struct jset *j;
 
 		err = "cannot allocate memory for journal";
-		if (bch_journal_read(c, &journal, &op))
+		if (bch_journal_read(c, &journal))
 			goto err;
 
 		pr_debug("btree_journal_read() done");
@@ -1543,12 +1542,12 @@ static void run_cache_set(struct cache_set *c)
 		list_del_init(&c->root->list);
 		rw_unlock(true, c->root);
 
-		err = uuid_read(c, j, &op.cl);
+		err = uuid_read(c, j, &cl);
 		if (err)
 			goto err;
 
 		err = "error in recovery";
-		if (bch_btree_check(c, &op))
+		if (bch_btree_check(c))
 			goto err;
 
 		bch_journal_mark(c, &journal);
@@ -1580,7 +1579,7 @@ static void run_cache_set(struct cache_set *c)
 		if (j->version < BCACHE_JSET_VERSION_UUID)
 			__uuid_write(c);
 
-		bch_journal_replay(c, &journal, &op);
+		bch_journal_replay(c, &journal);
 	} else {
 		pr_notice("invalidating existing data");
 
@@ -1616,7 +1615,7 @@ static void run_cache_set(struct cache_set *c)
 			goto err;
 
 		bkey_copy_key(&c->root->key, &MAX_KEY);
-		bch_btree_node_write(c->root, &op.cl);
+		bch_btree_node_write(c->root, &cl);
 
 		bch_btree_set_root(c->root);
 		rw_unlock(true, c->root);
@@ -1629,14 +1628,14 @@ static void run_cache_set(struct cache_set *c)
 		SET_CACHE_SYNC(&c->sb, true);
 
 		bch_journal_next(&c->journal);
-		bch_journal_meta(c, &op.cl);
+		bch_journal_meta(c, &cl);
 	}
 
 	err = "error starting gc thread";
 	if (bch_gc_thread_start(c))
 		goto err;
 
-	closure_sync(&op.cl);
+	closure_sync(&cl);
 	c->sb.last_mount = get_seconds();
 	bcache_write_super(c);
 
@@ -1647,7 +1646,7 @@ static void run_cache_set(struct cache_set *c)
 
 	return;
 err:
-	closure_sync(&op.cl);
+	closure_sync(&cl);
 	/* XXX: test this, it's broken */
 	bch_cache_set_error(c, err);
 }
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index c68de9f12618..b58c2bc91e3f 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -155,7 +155,7 @@ static void write_dirty_finish(struct closure *cl)
 		for (i = 0; i < KEY_PTRS(&w->key); i++)
 			atomic_inc(&PTR_BUCKET(dc->disk.c, &w->key, i)->pin);
 
-		bch_btree_insert(&op, dc->disk.c, &keys);
+		bch_btree_insert(&op, dc->disk.c, &keys, NULL);
 		closure_sync(&op.cl);
 
 		if (op.insert_collision)
@@ -433,9 +433,16 @@ static int bch_writeback_thread(void *arg)
 
 /* Init */
 
-static int sectors_dirty_init_fn(struct btree_op *op, struct btree *b,
+struct sectors_dirty_init {
+	struct btree_op	op;
+	unsigned	inode;
+};
+
+static int sectors_dirty_init_fn(struct btree_op *_op, struct btree *b,
 				 struct bkey *k)
 {
+	struct sectors_dirty_init *op = container_of(_op,
+						struct sectors_dirty_init, op);
 	if (KEY_INODE(k) > op->inode)
 		return MAP_DONE;
 
@@ -448,12 +455,12 @@ static int sectors_dirty_init_fn(struct btree_op *op, struct btree *b,
 
 void bch_sectors_dirty_init(struct cached_dev *dc)
 {
-	struct btree_op op;
+	struct sectors_dirty_init op;
 
-	bch_btree_op_init_stack(&op);
+	bch_btree_op_init_stack(&op.op);
 	op.inode = dc->disk.id;
 
-	bch_btree_map_keys(&op, dc->disk.c, &KEY(op.inode, 0, 0),
+	bch_btree_map_keys(&op.op, dc->disk.c, &KEY(op.inode, 0, 0),
 			   sectors_dirty_init_fn, 0);
 }
 
-- 
cgit 


From b54d6934da7857f87b092df9b77dc1f42818ba94 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 18:04:18 -0700
Subject: bcache: Kill op->cl

This isn't used for waiting asynchronously anymore - so this is a fairly
trivial refactoring.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bset.c      |  2 +-
 drivers/md/bcache/btree.c     | 81 +++++++++++++++++++------------------------
 drivers/md/bcache/btree.h     |  8 +++--
 drivers/md/bcache/journal.c   |  8 ++---
 drivers/md/bcache/movinggc.c  |  4 +--
 drivers/md/bcache/request.c   | 35 ++++++++-----------
 drivers/md/bcache/request.h   |  1 +
 drivers/md/bcache/writeback.c |  5 ++-
 8 files changed, 63 insertions(+), 81 deletions(-)

diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c
index fae5b7b3f5ab..f7b5525ddafa 100644
--- a/drivers/md/bcache/bset.c
+++ b/drivers/md/bcache/bset.c
@@ -1196,7 +1196,7 @@ int bch_bset_print_stats(struct cache_set *c, char *buf)
 	int ret;
 
 	memset(&t, 0, sizeof(struct bset_stats));
-	bch_btree_op_init_stack(&t.op);
+	bch_btree_op_init(&t.op, -1);
 
 	ret = bch_btree_map_nodes(&t.op, c, &ZERO_KEY, btree_bset_stats);
 	if (ret < 0)
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 5cb59c313dc3..cb1a490f7f86 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -115,13 +115,6 @@ enum {
 
 static struct workqueue_struct *btree_io_wq;
 
-void bch_btree_op_init_stack(struct btree_op *op)
-{
-	memset(op, 0, sizeof(struct btree_op));
-	closure_init_stack(&op->cl);
-	op->lock = -1;
-}
-
 static inline bool should_split(struct btree *b)
 {
 	struct bset *i = write_block(b);
@@ -965,8 +958,7 @@ err:
  * bch_btree_node_get - find a btree node in the cache and lock it, reading it
  * in from disk if necessary.
  *
- * If IO is necessary, it uses the closure embedded in struct btree_op to wait;
- * if that closure is in non blocking mode, will return -EAGAIN.
+ * If IO is necessary and running under generic_make_request, returns -EAGAIN.
  *
  * The btree node will have either a read or a write lock held, depending on
  * level and op->lock.
@@ -1260,6 +1252,9 @@ static void btree_gc_coalesce(struct btree *b, struct gc_stat *gc,
 {
 	unsigned nodes = 0, keys = 0, blocks;
 	int i;
+	struct closure cl;
+
+	closure_init_stack(&cl);
 
 	while (nodes < GC_MERGE_NODES && r[nodes].b)
 		keys += r[nodes++].keys;
@@ -1353,9 +1348,7 @@ static int btree_gc_recurse(struct btree *b, struct btree_op *op,
 {
 	void write(struct btree *r)
 	{
-		if (!r->written)
-			bch_btree_node_write(r, &op->cl);
-		else if (btree_node_dirty(r))
+		if (!r->written || btree_node_dirty(r))
 			bch_btree_node_write(r, writes);
 
 		up_write(&r->lock);
@@ -1431,6 +1424,9 @@ static int bch_btree_gc_root(struct btree *b, struct btree_op *op,
 	struct btree *n = NULL;
 	unsigned keys = 0;
 	int ret = 0, stale = btree_gc_mark_node(b, &keys, gc);
+	struct closure cl;
+
+	closure_init_stack(&cl);
 
 	if (b->level || stale > 10)
 		n = btree_node_alloc_replacement(b);
@@ -1442,11 +1438,11 @@ static int bch_btree_gc_root(struct btree *b, struct btree_op *op,
 		ret = btree_gc_recurse(b, op, writes, gc);
 
 	if (!b->written || btree_node_dirty(b)) {
-		bch_btree_node_write(b, n ? &op->cl : NULL);
+		bch_btree_node_write(b, n ? &cl : NULL);
 	}
 
 	if (!IS_ERR_OR_NULL(n)) {
-		closure_sync(&op->cl);
+		closure_sync(&cl);
 		bch_btree_set_root(b);
 		btree_node_free(n);
 		rw_unlock(true, b);
@@ -1545,15 +1541,13 @@ static void bch_btree_gc(struct cache_set *c)
 
 	memset(&stats, 0, sizeof(struct gc_stat));
 	closure_init_stack(&writes);
-	bch_btree_op_init_stack(&op);
-	op.lock = SHRT_MAX;
+	bch_btree_op_init(&op, SHRT_MAX);
 
 	btree_gc_start(c);
 
 	atomic_inc(&c->prio_blocked);
 
 	ret = btree_root(gc_root, c, &op, &writes, &stats);
-	closure_sync(&op.cl);
 	closure_sync(&writes);
 
 	if (ret) {
@@ -1562,8 +1556,8 @@ static void bch_btree_gc(struct cache_set *c)
 	}
 
 	/* Possibly wait for new UUIDs or whatever to hit disk */
-	bch_journal_meta(c, &op.cl);
-	closure_sync(&op.cl);
+	bch_journal_meta(c, &writes);
+	closure_sync(&writes);
 
 	available = bch_btree_gc_finish(c);
 
@@ -1671,8 +1665,7 @@ int bch_btree_check(struct cache_set *c)
 	struct btree_op op;
 
 	memset(seen, 0, sizeof(seen));
-	bch_btree_op_init_stack(&op);
-	op.lock = SHRT_MAX;
+	bch_btree_op_init(&op, SHRT_MAX);
 
 	for (i = 0; c->cache[i]; i++) {
 		size_t n = DIV_ROUND_UP(c->cache[i]->sb.nbuckets, 8);
@@ -1980,6 +1973,9 @@ static int btree_split(struct btree *b, struct btree_op *op,
 	bool split;
 	struct btree *n1, *n2 = NULL, *n3 = NULL;
 	uint64_t start_time = local_clock();
+	struct closure cl;
+
+	closure_init_stack(&cl);
 
 	n1 = btree_node_alloc_replacement(b);
 	if (IS_ERR(n1))
@@ -2025,7 +2021,7 @@ static int btree_split(struct btree *b, struct btree_op *op,
 		bkey_copy_key(&n2->key, &b->key);
 
 		bch_keylist_add(parent_keys, &n2->key);
-		bch_btree_node_write(n2, &op->cl);
+		bch_btree_node_write(n2, &cl);
 		rw_unlock(true, n2);
 	} else {
 		trace_bcache_btree_node_compact(b, n1->sets[0].data->keys);
@@ -2034,23 +2030,23 @@ static int btree_split(struct btree *b, struct btree_op *op,
 	}
 
 	bch_keylist_add(parent_keys, &n1->key);
-	bch_btree_node_write(n1, &op->cl);
+	bch_btree_node_write(n1, &cl);
 
 	if (n3) {
 		/* Depth increases, make a new root */
 
 		bkey_copy_key(&n3->key, &MAX_KEY);
 		bch_btree_insert_keys(n3, op, parent_keys);
-		bch_btree_node_write(n3, &op->cl);
+		bch_btree_node_write(n3, &cl);
 
-		closure_sync(&op->cl);
+		closure_sync(&cl);
 		bch_btree_set_root(n3);
 		rw_unlock(true, n3);
 	} else if (!b->parent) {
 		/* Root filled up but didn't need to be split */
 
 		bch_keylist_reset(parent_keys);
-		closure_sync(&op->cl);
+		closure_sync(&cl);
 		bch_btree_set_root(n1);
 	} else {
 		unsigned i;
@@ -2065,7 +2061,7 @@ static int btree_split(struct btree *b, struct btree_op *op,
 		}
 
 		bch_keylist_push(parent_keys);
-		closure_sync(&op->cl);
+		closure_sync(&cl);
 		atomic_inc(&b->c->prio_blocked);
 	}
 
@@ -2126,10 +2122,15 @@ static int bch_btree_insert_node(struct btree *b, struct btree_op *op,
 			BUG_ON(write_block(b) != b->sets[b->nsets].data);
 
 			if (bch_btree_insert_keys(b, op, insert_keys)) {
-				if (!b->level)
+				if (!b->level) {
 					bch_btree_leaf_dirty(b, journal_ref);
-				else
-					bch_btree_node_write(b, &op->cl);
+				} else {
+					struct closure cl;
+
+					closure_init_stack(&cl);
+					bch_btree_node_write(b, &cl);
+					closure_sync(&cl);
+				}
 			}
 		}
 	} while (!bch_keylist_empty(&split_keys));
@@ -2204,12 +2205,6 @@ int bch_btree_insert(struct btree_op *op, struct cache_set *c,
 {
 	int ret = 0;
 
-	/*
-	 * Don't want to block with the btree locked unless we have to,
-	 * otherwise we get deadlocks with try_harder and between split/gc
-	 */
-	clear_closure_blocking(&op->cl);
-
 	BUG_ON(bch_keylist_empty(keys));
 
 	while (!bch_keylist_empty(keys)) {
@@ -2217,8 +2212,8 @@ int bch_btree_insert(struct btree_op *op, struct cache_set *c,
 		ret = btree_root(insert_recurse, c, op, keys, journal_ref);
 
 		if (ret == -EAGAIN) {
+			BUG();
 			ret = 0;
-			closure_sync(&op->cl);
 		} else if (ret) {
 			struct bkey *k;
 
@@ -2292,10 +2287,7 @@ static int bch_btree_map_nodes_recurse(struct btree *b, struct btree_op *op,
 int __bch_btree_map_nodes(struct btree_op *op, struct cache_set *c,
 			  struct bkey *from, btree_map_nodes_fn *fn, int flags)
 {
-	int ret = btree_root(map_nodes_recurse, c, op, from, fn, flags);
-	if (closure_blocking(&op->cl))
-		closure_sync(&op->cl);
-	return ret;
+	return btree_root(map_nodes_recurse, c, op, from, fn, flags);
 }
 
 static int bch_btree_map_keys_recurse(struct btree *b, struct btree_op *op,
@@ -2328,10 +2320,7 @@ static int bch_btree_map_keys_recurse(struct btree *b, struct btree_op *op,
 int bch_btree_map_keys(struct btree_op *op, struct cache_set *c,
 		       struct bkey *from, btree_map_keys_fn *fn, int flags)
 {
-	int ret = btree_root(map_keys_recurse, c, op, from, fn, flags);
-	if (closure_blocking(&op->cl))
-		closure_sync(&op->cl);
-	return ret;
+	return btree_root(map_keys_recurse, c, op, from, fn, flags);
 }
 
 /* Keybuf code */
@@ -2409,7 +2398,7 @@ void bch_refill_keybuf(struct cache_set *c, struct keybuf *buf,
 
 	cond_resched();
 
-	bch_btree_op_init_stack(&refill.op);
+	bch_btree_op_init(&refill.op, -1);
 	refill.buf = buf;
 	refill.end = end;
 	refill.pred = pred;
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index 3f820b67150c..34ee5359b262 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -237,8 +237,6 @@ void __bkey_put(struct cache_set *c, struct bkey *k);
 /* Recursing down the btree */
 
 struct btree_op {
-	struct closure		cl;
-
 	/* Btree level at which we start taking write locks */
 	short			lock;
 
@@ -253,7 +251,11 @@ struct btree_op {
 	BKEY_PADDED(replace);
 };
 
-void bch_btree_op_init_stack(struct btree_op *);
+static inline void bch_btree_op_init(struct btree_op *op, int write_lock_level)
+{
+	memset(op, 0, sizeof(struct btree_op));
+	op->lock = write_lock_level;
+}
 
 static inline void rw_lock(bool w, struct btree *b, int level)
 {
diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index 725c8eb9a62a..20e900ad5010 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -305,8 +305,7 @@ int bch_journal_replay(struct cache_set *s, struct list_head *list)
 	struct btree_op op;
 
 	bch_keylist_init(&keylist);
-	bch_btree_op_init_stack(&op);
-	op.lock = SHRT_MAX;
+	bch_btree_op_init(&op, SHRT_MAX);
 
 	list_for_each_entry(i, list, list) {
 		BUG_ON(i->pin && atomic_read(i->pin) != 1);
@@ -341,14 +340,13 @@ int bch_journal_replay(struct cache_set *s, struct list_head *list)
 
 	pr_info("journal replay done, %i keys in %i entries, seq %llu",
 		keys, entries, end);
-
+err:
 	while (!list_empty(list)) {
 		i = list_first_entry(list, struct journal_replay, list);
 		list_del(&i->list);
 		kfree(i);
 	}
-err:
-	closure_sync(&op.cl);
+
 	return ret;
 }
 
diff --git a/drivers/md/bcache/movinggc.c b/drivers/md/bcache/movinggc.c
index 80e30d77221e..219356f6159d 100644
--- a/drivers/md/bcache/movinggc.c
+++ b/drivers/md/bcache/movinggc.c
@@ -108,8 +108,8 @@ static void write_moving(struct closure *cl)
 		s->op.type = BTREE_REPLACE;
 		bkey_copy(&s->op.replace, &io->w->key);
 
-		closure_init(&s->op.cl, cl);
-		bch_data_insert(&s->op.cl);
+		closure_init(&s->btree, cl);
+		bch_data_insert(&s->btree);
 	}
 
 	continue_at(cl, write_moving_finish, system_wq);
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 818e2e39e71f..5df44fbc9e1d 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -215,8 +215,7 @@ static void bio_csum(struct bio *bio, struct bkey *k)
 
 static void bch_data_insert_keys(struct closure *cl)
 {
-	struct btree_op *op = container_of(cl, struct btree_op, cl);
-	struct search *s = container_of(op, struct search, op);
+	struct search *s = container_of(cl, struct search, btree);
 	atomic_t *journal_ref = NULL;
 
 	/*
@@ -236,7 +235,7 @@ static void bch_data_insert_keys(struct closure *cl)
 					  s->flush_journal
 					  ? &s->cl : NULL);
 
-	if (bch_btree_insert(op, s->c, &s->insert_keys, journal_ref)) {
+	if (bch_btree_insert(&s->op, s->c, &s->insert_keys, journal_ref)) {
 		s->error		= -ENOMEM;
 		s->insert_data_done	= true;
 	}
@@ -433,8 +432,7 @@ static bool bch_alloc_sectors(struct bkey *k, unsigned sectors,
 
 static void bch_data_invalidate(struct closure *cl)
 {
-	struct btree_op *op = container_of(cl, struct btree_op, cl);
-	struct search *s = container_of(op, struct search, op);
+	struct search *s = container_of(cl, struct search, btree);
 	struct bio *bio = s->cache_bio;
 
 	pr_debug("invalidating %i sectors from %llu",
@@ -461,8 +459,7 @@ out:
 
 static void bch_data_insert_error(struct closure *cl)
 {
-	struct btree_op *op = container_of(cl, struct btree_op, cl);
-	struct search *s = container_of(op, struct search, op);
+	struct search *s = container_of(cl, struct search, btree);
 
 	/*
 	 * Our data write just errored, which means we've got a bunch of keys to
@@ -493,8 +490,7 @@ static void bch_data_insert_error(struct closure *cl)
 static void bch_data_insert_endio(struct bio *bio, int error)
 {
 	struct closure *cl = bio->bi_private;
-	struct btree_op *op = container_of(cl, struct btree_op, cl);
-	struct search *s = container_of(op, struct search, op);
+	struct search *s = container_of(cl, struct search, btree);
 
 	if (error) {
 		/* TODO: We could try to recover from this. */
@@ -511,8 +507,7 @@ static void bch_data_insert_endio(struct bio *bio, int error)
 
 static void bch_data_insert_start(struct closure *cl)
 {
-	struct btree_op *op = container_of(cl, struct btree_op, cl);
-	struct search *s = container_of(op, struct search, op);
+	struct search *s = container_of(cl, struct search, btree);
 	struct bio *bio = s->cache_bio, *n;
 
 	if (s->bypass)
@@ -630,8 +625,7 @@ err:
  */
 void bch_data_insert(struct closure *cl)
 {
-	struct btree_op *op = container_of(cl, struct btree_op, cl);
-	struct search *s = container_of(op, struct search, op);
+	struct search *s = container_of(cl, struct search, btree);
 
 	bch_keylist_init(&s->insert_keys);
 	bio_get(s->cache_bio);
@@ -731,11 +725,10 @@ static int cache_lookup_fn(struct btree_op *op, struct btree *b, struct bkey *k)
 
 static void cache_lookup(struct closure *cl)
 {
-	struct btree_op *op = container_of(cl, struct btree_op, cl);
-	struct search *s = container_of(op, struct search, op);
+	struct search *s = container_of(cl, struct search, btree);
 	struct bio *bio = &s->bio.bio;
 
-	int ret = bch_btree_map_keys(op, s->c,
+	int ret = bch_btree_map_keys(&s->op, s->c,
 				     &KEY(s->inode, bio->bi_sector, 0),
 				     cache_lookup_fn, MAP_END_KEY);
 	if (ret == -EAGAIN)
@@ -1064,7 +1057,7 @@ static void cached_dev_read_done(struct closure *cl)
 	if (s->cache_bio &&
 	    !test_bit(CACHE_SET_STOPPING, &s->c->flags)) {
 		s->op.type = BTREE_REPLACE;
-		closure_call(&s->op.cl, bch_data_insert, NULL, cl);
+		closure_call(&s->btree, bch_data_insert, NULL, cl);
 	}
 
 	continue_at(cl, cached_dev_cache_miss_done, NULL);
@@ -1156,7 +1149,7 @@ static void cached_dev_read(struct cached_dev *dc, struct search *s)
 {
 	struct closure *cl = &s->cl;
 
-	closure_call(&s->op.cl, cache_lookup, NULL, cl);
+	closure_call(&s->btree, cache_lookup, NULL, cl);
 	continue_at(cl, cached_dev_read_done_bh, NULL);
 }
 
@@ -1239,7 +1232,7 @@ static void cached_dev_write(struct cached_dev *dc, struct search *s)
 		closure_bio_submit(bio, cl, s->d);
 	}
 
-	closure_call(&s->op.cl, bch_data_insert, NULL, cl);
+	closure_call(&s->btree, bch_data_insert, NULL, cl);
 	continue_at(cl, cached_dev_write_complete, NULL);
 }
 
@@ -1418,9 +1411,9 @@ static void flash_dev_make_request(struct request_queue *q, struct bio *bio)
 		s->writeback	= true;
 		s->cache_bio	= bio;
 
-		closure_call(&s->op.cl, bch_data_insert, NULL, cl);
+		closure_call(&s->btree, bch_data_insert, NULL, cl);
 	} else {
-		closure_call(&s->op.cl, cache_lookup, NULL, cl);
+		closure_call(&s->btree, cache_lookup, NULL, cl);
 	}
 
 	continue_at(cl, search_free, NULL);
diff --git a/drivers/md/bcache/request.h b/drivers/md/bcache/request.h
index 0f79177c4f33..ed578aa53ee2 100644
--- a/drivers/md/bcache/request.h
+++ b/drivers/md/bcache/request.h
@@ -6,6 +6,7 @@
 struct search {
 	/* Stack frame for bio_complete */
 	struct closure		cl;
+	struct closure		btree;
 
 	struct bcache_device	*d;
 	struct cache_set	*c;
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index b58c2bc91e3f..d0968e8938f7 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -143,7 +143,7 @@ static void write_dirty_finish(struct closure *cl)
 		struct btree_op op;
 		struct keylist keys;
 
-		bch_btree_op_init_stack(&op);
+		bch_btree_op_init(&op, -1);
 		bch_keylist_init(&keys);
 
 		op.type = BTREE_REPLACE;
@@ -156,7 +156,6 @@ static void write_dirty_finish(struct closure *cl)
 			atomic_inc(&PTR_BUCKET(dc->disk.c, &w->key, i)->pin);
 
 		bch_btree_insert(&op, dc->disk.c, &keys, NULL);
-		closure_sync(&op.cl);
 
 		if (op.insert_collision)
 			trace_bcache_writeback_collision(&w->key);
@@ -457,7 +456,7 @@ void bch_sectors_dirty_init(struct cached_dev *dc)
 {
 	struct sectors_dirty_init op;
 
-	bch_btree_op_init_stack(&op.op);
+	bch_btree_op_init(&op.op, -1);
 	op.inode = dc->disk.id;
 
 	bch_btree_map_keys(&op.op, dc->disk.c, &KEY(op.inode, 0, 0),
-- 
cgit 


From faadf0c96547ec8277ad0abd6959f2ef48522f31 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Fri, 1 Nov 2013 18:03:08 -0700
Subject: bcache: Drop some closure stuff

With a the recent bcache refactoring, some of the closure code isn't
needed anymore.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/btree.c   |   6 +-
 drivers/md/bcache/closure.c | 103 ++++---------------------
 drivers/md/bcache/closure.h | 181 +++++---------------------------------------
 3 files changed, 40 insertions(+), 250 deletions(-)

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index cb1a490f7f86..3e0c90130c2e 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -407,7 +407,7 @@ static void do_btree_node_write(struct btree *b)
 	b->bio = bch_bbio_alloc(b->c);
 
 	b->bio->bi_end_io	= btree_node_write_endio;
-	b->bio->bi_private	= &b->io.cl;
+	b->bio->bi_private	= cl;
 	b->bio->bi_rw		= REQ_META|WRITE_SYNC|REQ_FUA;
 	b->bio->bi_size		= set_blocks(i, b->c) * block_bytes(b->c);
 	bch_bio_map(b->bio, i);
@@ -672,8 +672,8 @@ static int mca_reap(struct btree *b, unsigned min_order, bool flush)
 	}
 
 	/* wait for any in flight btree write */
-	closure_wait_event_sync(&b->io.wait, &cl,
-		atomic_read(&b->io.cl.remaining) == -1);
+	closure_wait_event(&b->io.wait, &cl,
+			   atomic_read(&b->io.cl.remaining) == -1);
 
 	return 0;
 }
diff --git a/drivers/md/bcache/closure.c b/drivers/md/bcache/closure.c
index 9aba2017f0d1..dfff2410322e 100644
--- a/drivers/md/bcache/closure.c
+++ b/drivers/md/bcache/closure.c
@@ -11,17 +11,6 @@
 
 #include "closure.h"
 
-void closure_queue(struct closure *cl)
-{
-	struct workqueue_struct *wq = cl->wq;
-	if (wq) {
-		INIT_WORK(&cl->work, cl->work.func);
-		BUG_ON(!queue_work(wq, &cl->work));
-	} else
-		cl->fn(cl);
-}
-EXPORT_SYMBOL_GPL(closure_queue);
-
 #define CL_FIELD(type, field)					\
 	case TYPE_ ## type:					\
 	return &container_of(cl, struct type, cl)->field
@@ -30,17 +19,6 @@ static struct closure_waitlist *closure_waitlist(struct closure *cl)
 {
 	switch (cl->type) {
 		CL_FIELD(closure_with_waitlist, wait);
-		CL_FIELD(closure_with_waitlist_and_timer, wait);
-	default:
-		return NULL;
-	}
-}
-
-static struct timer_list *closure_timer(struct closure *cl)
-{
-	switch (cl->type) {
-		CL_FIELD(closure_with_timer, timer);
-		CL_FIELD(closure_with_waitlist_and_timer, timer);
 	default:
 		return NULL;
 	}
@@ -51,7 +29,7 @@ static inline void closure_put_after_sub(struct closure *cl, int flags)
 	int r = flags & CLOSURE_REMAINING_MASK;
 
 	BUG_ON(flags & CLOSURE_GUARD_MASK);
-	BUG_ON(!r && (flags & ~(CLOSURE_DESTRUCTOR|CLOSURE_BLOCKING)));
+	BUG_ON(!r && (flags & ~CLOSURE_DESTRUCTOR));
 
 	/* Must deliver precisely one wakeup */
 	if (r == 1 && (flags & CLOSURE_SLEEPING))
@@ -59,7 +37,6 @@ static inline void closure_put_after_sub(struct closure *cl, int flags)
 
 	if (!r) {
 		if (cl->fn && !(flags & CLOSURE_DESTRUCTOR)) {
-			/* CLOSURE_BLOCKING might be set - clear it */
 			atomic_set(&cl->remaining,
 				   CLOSURE_REMAINING_INITIALIZER);
 			closure_queue(cl);
@@ -90,13 +67,13 @@ void closure_sub(struct closure *cl, int v)
 {
 	closure_put_after_sub(cl, atomic_sub_return(v, &cl->remaining));
 }
-EXPORT_SYMBOL_GPL(closure_sub);
+EXPORT_SYMBOL(closure_sub);
 
 void closure_put(struct closure *cl)
 {
 	closure_put_after_sub(cl, atomic_dec_return(&cl->remaining));
 }
-EXPORT_SYMBOL_GPL(closure_put);
+EXPORT_SYMBOL(closure_put);
 
 static void set_waiting(struct closure *cl, unsigned long f)
 {
@@ -133,7 +110,7 @@ void __closure_wake_up(struct closure_waitlist *wait_list)
 		closure_sub(cl, CLOSURE_WAITING + 1);
 	}
 }
-EXPORT_SYMBOL_GPL(__closure_wake_up);
+EXPORT_SYMBOL(__closure_wake_up);
 
 bool closure_wait(struct closure_waitlist *list, struct closure *cl)
 {
@@ -146,7 +123,7 @@ bool closure_wait(struct closure_waitlist *list, struct closure *cl)
 
 	return true;
 }
-EXPORT_SYMBOL_GPL(closure_wait);
+EXPORT_SYMBOL(closure_wait);
 
 /**
  * closure_sync() - sleep until a closure a closure has nothing left to wait on
@@ -169,7 +146,7 @@ void closure_sync(struct closure *cl)
 
 	__closure_end_sleep(cl);
 }
-EXPORT_SYMBOL_GPL(closure_sync);
+EXPORT_SYMBOL(closure_sync);
 
 /**
  * closure_trylock() - try to acquire the closure, without waiting
@@ -183,17 +160,17 @@ bool closure_trylock(struct closure *cl, struct closure *parent)
 			   CLOSURE_REMAINING_INITIALIZER) != -1)
 		return false;
 
-	closure_set_ret_ip(cl);
-
 	smp_mb();
+
 	cl->parent = parent;
 	if (parent)
 		closure_get(parent);
 
+	closure_set_ret_ip(cl);
 	closure_debug_create(cl);
 	return true;
 }
-EXPORT_SYMBOL_GPL(closure_trylock);
+EXPORT_SYMBOL(closure_trylock);
 
 void __closure_lock(struct closure *cl, struct closure *parent,
 		    struct closure_waitlist *wait_list)
@@ -205,57 +182,11 @@ void __closure_lock(struct closure *cl, struct closure *parent,
 		if (closure_trylock(cl, parent))
 			return;
 
-		closure_wait_event_sync(wait_list, &wait,
-					atomic_read(&cl->remaining) == -1);
+		closure_wait_event(wait_list, &wait,
+				   atomic_read(&cl->remaining) == -1);
 	}
 }
-EXPORT_SYMBOL_GPL(__closure_lock);
-
-static void closure_delay_timer_fn(unsigned long data)
-{
-	struct closure *cl = (struct closure *) data;
-	closure_sub(cl, CLOSURE_TIMER + 1);
-}
-
-void do_closure_timer_init(struct closure *cl)
-{
-	struct timer_list *timer = closure_timer(cl);
-
-	init_timer(timer);
-	timer->data	= (unsigned long) cl;
-	timer->function = closure_delay_timer_fn;
-}
-EXPORT_SYMBOL_GPL(do_closure_timer_init);
-
-bool __closure_delay(struct closure *cl, unsigned long delay,
-		     struct timer_list *timer)
-{
-	if (atomic_read(&cl->remaining) & CLOSURE_TIMER)
-		return false;
-
-	BUG_ON(timer_pending(timer));
-
-	timer->expires	= jiffies + delay;
-
-	atomic_add(CLOSURE_TIMER + 1, &cl->remaining);
-	add_timer(timer);
-	return true;
-}
-EXPORT_SYMBOL_GPL(__closure_delay);
-
-void __closure_flush(struct closure *cl, struct timer_list *timer)
-{
-	if (del_timer(timer))
-		closure_sub(cl, CLOSURE_TIMER + 1);
-}
-EXPORT_SYMBOL_GPL(__closure_flush);
-
-void __closure_flush_sync(struct closure *cl, struct timer_list *timer)
-{
-	if (del_timer_sync(timer))
-		closure_sub(cl, CLOSURE_TIMER + 1);
-}
-EXPORT_SYMBOL_GPL(__closure_flush_sync);
+EXPORT_SYMBOL(__closure_lock);
 
 #ifdef CONFIG_BCACHE_CLOSURES_DEBUG
 
@@ -273,7 +204,7 @@ void closure_debug_create(struct closure *cl)
 	list_add(&cl->all, &closure_list);
 	spin_unlock_irqrestore(&closure_list_lock, flags);
 }
-EXPORT_SYMBOL_GPL(closure_debug_create);
+EXPORT_SYMBOL(closure_debug_create);
 
 void closure_debug_destroy(struct closure *cl)
 {
@@ -286,7 +217,7 @@ void closure_debug_destroy(struct closure *cl)
 	list_del(&cl->all);
 	spin_unlock_irqrestore(&closure_list_lock, flags);
 }
-EXPORT_SYMBOL_GPL(closure_debug_destroy);
+EXPORT_SYMBOL(closure_debug_destroy);
 
 static struct dentry *debug;
 
@@ -304,14 +235,12 @@ static int debug_seq_show(struct seq_file *f, void *data)
 			   cl, (void *) cl->ip, cl->fn, cl->parent,
 			   r & CLOSURE_REMAINING_MASK);
 
-		seq_printf(f, "%s%s%s%s%s%s\n",
+		seq_printf(f, "%s%s%s%s\n",
 			   test_bit(WORK_STRUCT_PENDING,
 				    work_data_bits(&cl->work)) ? "Q" : "",
 			   r & CLOSURE_RUNNING	? "R" : "",
-			   r & CLOSURE_BLOCKING	? "B" : "",
 			   r & CLOSURE_STACK	? "S" : "",
-			   r & CLOSURE_SLEEPING	? "Sl" : "",
-			   r & CLOSURE_TIMER	? "T" : "");
+			   r & CLOSURE_SLEEPING	? "Sl" : "");
 
 		if (r & CLOSURE_WAITING)
 			seq_printf(f, " W %pF\n",
diff --git a/drivers/md/bcache/closure.h b/drivers/md/bcache/closure.h
index ab011f03801f..9762f1be3304 100644
--- a/drivers/md/bcache/closure.h
+++ b/drivers/md/bcache/closure.h
@@ -155,21 +155,6 @@
  * delayed_work embeds a work item and a timer_list. The important thing is, use
  * it exactly like you would a regular closure and closure_put() will magically
  * handle everything for you.
- *
- * We've got closures that embed timers, too. They're called, appropriately
- * enough:
- * struct closure_with_timer;
- *
- * This gives you access to closure_delay(). It takes a refcount for a specified
- * number of jiffies - you could then call closure_sync() (for a slightly
- * convoluted version of msleep()) or continue_at() - which gives you the same
- * effect as using a delayed work item, except you can reuse the work_struct
- * already embedded in struct closure.
- *
- * Lastly, there's struct closure_with_waitlist_and_timer. It does what you
- * probably expect, if you happen to need the features of both. (You don't
- * really want to know how all this is implemented, but if I've done my job
- * right you shouldn't have to care).
  */
 
 struct closure;
@@ -182,16 +167,11 @@ struct closure_waitlist {
 enum closure_type {
 	TYPE_closure				= 0,
 	TYPE_closure_with_waitlist		= 1,
-	TYPE_closure_with_timer			= 2,
-	TYPE_closure_with_waitlist_and_timer	= 3,
-	MAX_CLOSURE_TYPE			= 3,
+	MAX_CLOSURE_TYPE			= 1,
 };
 
 enum closure_state {
 	/*
-	 * CLOSURE_BLOCKING: Causes closure_wait_event() to block, instead of
-	 * waiting asynchronously
-	 *
 	 * CLOSURE_WAITING: Set iff the closure is on a waitlist. Must be set by
 	 * the thread that owns the closure, and cleared by the thread that's
 	 * waking up the closure.
@@ -200,10 +180,6 @@ enum closure_state {
 	 * - indicates that cl->task is valid and closure_put() may wake it up.
 	 * Only set or cleared by the thread that owns the closure.
 	 *
-	 * CLOSURE_TIMER: Analagous to CLOSURE_WAITING, indicates that a closure
-	 * has an outstanding timer. Must be set by the thread that owns the
-	 * closure, and cleared by the timer function when the timer goes off.
-	 *
 	 * The rest are for debugging and don't affect behaviour:
 	 *
 	 * CLOSURE_RUNNING: Set when a closure is running (i.e. by
@@ -218,19 +194,17 @@ enum closure_state {
 	 * closure with this flag set
 	 */
 
-	CLOSURE_BITS_START	= (1 << 19),
-	CLOSURE_DESTRUCTOR	= (1 << 19),
-	CLOSURE_BLOCKING	= (1 << 21),
-	CLOSURE_WAITING		= (1 << 23),
-	CLOSURE_SLEEPING	= (1 << 25),
-	CLOSURE_TIMER		= (1 << 27),
+	CLOSURE_BITS_START	= (1 << 23),
+	CLOSURE_DESTRUCTOR	= (1 << 23),
+	CLOSURE_WAITING		= (1 << 25),
+	CLOSURE_SLEEPING	= (1 << 27),
 	CLOSURE_RUNNING		= (1 << 29),
 	CLOSURE_STACK		= (1 << 31),
 };
 
 #define CLOSURE_GUARD_MASK					\
-	((CLOSURE_DESTRUCTOR|CLOSURE_BLOCKING|CLOSURE_WAITING|	\
-	  CLOSURE_SLEEPING|CLOSURE_TIMER|CLOSURE_RUNNING|CLOSURE_STACK) << 1)
+	((CLOSURE_DESTRUCTOR|CLOSURE_WAITING|CLOSURE_SLEEPING|	\
+	  CLOSURE_RUNNING|CLOSURE_STACK) << 1)
 
 #define CLOSURE_REMAINING_MASK		(CLOSURE_BITS_START - 1)
 #define CLOSURE_REMAINING_INITIALIZER	(1|CLOSURE_RUNNING)
@@ -268,17 +242,6 @@ struct closure_with_waitlist {
 	struct closure_waitlist	wait;
 };
 
-struct closure_with_timer {
-	struct closure		cl;
-	struct timer_list	timer;
-};
-
-struct closure_with_waitlist_and_timer {
-	struct closure		cl;
-	struct closure_waitlist	wait;
-	struct timer_list	timer;
-};
-
 extern unsigned invalid_closure_type(void);
 
 #define __CLOSURE_TYPE(cl, _t)						\
@@ -289,14 +252,11 @@ extern unsigned invalid_closure_type(void);
 (									\
 	__CLOSURE_TYPE(cl, closure)					\
 	__CLOSURE_TYPE(cl, closure_with_waitlist)			\
-	__CLOSURE_TYPE(cl, closure_with_timer)				\
-	__CLOSURE_TYPE(cl, closure_with_waitlist_and_timer)		\
 	invalid_closure_type()						\
 )
 
 void closure_sub(struct closure *cl, int v);
 void closure_put(struct closure *cl);
-void closure_queue(struct closure *cl);
 void __closure_wake_up(struct closure_waitlist *list);
 bool closure_wait(struct closure_waitlist *list, struct closure *cl);
 void closure_sync(struct closure *cl);
@@ -305,12 +265,6 @@ bool closure_trylock(struct closure *cl, struct closure *parent);
 void __closure_lock(struct closure *cl, struct closure *parent,
 		    struct closure_waitlist *wait_list);
 
-void do_closure_timer_init(struct closure *cl);
-bool __closure_delay(struct closure *cl, unsigned long delay,
-		     struct timer_list *timer);
-void __closure_flush(struct closure *cl, struct timer_list *timer);
-void __closure_flush_sync(struct closure *cl, struct timer_list *timer);
-
 #ifdef CONFIG_BCACHE_CLOSURES_DEBUG
 
 void closure_debug_init(void);
@@ -354,11 +308,6 @@ static inline void closure_set_stopped(struct closure *cl)
 	atomic_sub(CLOSURE_RUNNING, &cl->remaining);
 }
 
-static inline bool closure_is_stopped(struct closure *cl)
-{
-	return !(atomic_read(&cl->remaining) & CLOSURE_RUNNING);
-}
-
 static inline bool closure_is_unlocked(struct closure *cl)
 {
 	return atomic_read(&cl->remaining) == -1;
@@ -367,14 +316,6 @@ static inline bool closure_is_unlocked(struct closure *cl)
 static inline void do_closure_init(struct closure *cl, struct closure *parent,
 				   bool running)
 {
-	switch (cl->type) {
-	case TYPE_closure_with_timer:
-	case TYPE_closure_with_waitlist_and_timer:
-		do_closure_timer_init(cl);
-	default:
-		break;
-	}
-
 	cl->parent = parent;
 	if (parent)
 		closure_get(parent);
@@ -429,8 +370,7 @@ do {								\
 static inline void closure_init_stack(struct closure *cl)
 {
 	memset(cl, 0, sizeof(struct closure));
-	atomic_set(&cl->remaining, CLOSURE_REMAINING_INITIALIZER|
-		   CLOSURE_BLOCKING|CLOSURE_STACK);
+	atomic_set(&cl->remaining, CLOSURE_REMAINING_INITIALIZER|CLOSURE_STACK);
 }
 
 /**
@@ -461,24 +401,6 @@ do {								\
 #define closure_lock(cl, parent)				\
 	__closure_lock(__to_internal_closure(cl), parent, &(cl)->wait)
 
-/**
- * closure_delay() - delay some number of jiffies
- * @cl:		the closure that will sleep
- * @delay:	the delay in jiffies
- *
- * Takes a refcount on @cl which will be released after @delay jiffies; this may
- * be used to have a function run after a delay with continue_at(), or
- * closure_sync() may be used for a convoluted version of msleep().
- */
-#define closure_delay(cl, delay)			\
-	__closure_delay(__to_internal_closure(cl), delay, &(cl)->timer)
-
-#define closure_flush(cl)				\
-	__closure_flush(__to_internal_closure(cl), &(cl)->timer)
-
-#define closure_flush_sync(cl)				\
-	__closure_flush_sync(__to_internal_closure(cl), &(cl)->timer)
-
 static inline void __closure_end_sleep(struct closure *cl)
 {
 	__set_current_state(TASK_RUNNING);
@@ -497,40 +419,6 @@ static inline void __closure_start_sleep(struct closure *cl)
 		atomic_add(CLOSURE_SLEEPING, &cl->remaining);
 }
 
-/**
- * closure_blocking() - returns true if the closure is in blocking mode.
- *
- * If a closure is in blocking mode, closure_wait_event() will sleep until the
- * condition is true instead of waiting asynchronously.
- */
-static inline bool closure_blocking(struct closure *cl)
-{
-	return atomic_read(&cl->remaining) & CLOSURE_BLOCKING;
-}
-
-/**
- * set_closure_blocking() - put a closure in blocking mode.
- *
- * If a closure is in blocking mode, closure_wait_event() will sleep until the
- * condition is true instead of waiting asynchronously.
- *
- * Not thread safe - can only be called by the thread running the closure.
- */
-static inline void set_closure_blocking(struct closure *cl)
-{
-	if (!closure_blocking(cl))
-		atomic_add(CLOSURE_BLOCKING, &cl->remaining);
-}
-
-/*
- * Not thread safe - can only be called by the thread running the closure.
- */
-static inline void clear_closure_blocking(struct closure *cl)
-{
-	if (closure_blocking(cl))
-		atomic_sub(CLOSURE_BLOCKING, &cl->remaining);
-}
-
 /**
  * closure_wake_up() - wake up all closures on a wait list.
  */
@@ -561,63 +449,36 @@ static inline void closure_wake_up(struct closure_waitlist *list)
  * refcount on our closure. If this was a stack allocated closure, that would be
  * bad.
  */
-#define __closure_wait_event(list, cl, condition, _block)		\
+#define closure_wait_event(list, cl, condition)				\
 ({									\
-	bool block = _block;						\
 	typeof(condition) ret;						\
 									\
 	while (1) {							\
 		ret = (condition);					\
 		if (ret) {						\
 			__closure_wake_up(list);			\
-			if (block)					\
-				closure_sync(cl);			\
-									\
+			closure_sync(cl);				\
 			break;						\
 		}							\
 									\
-		if (block)						\
-			__closure_start_sleep(cl);			\
-									\
-		if (!closure_wait(list, cl)) {				\
-			if (!block)					\
-				break;					\
+		__closure_start_sleep(cl);				\
 									\
+		if (!closure_wait(list, cl))				\
 			schedule();					\
-		}							\
 	}								\
 									\
 	ret;								\
 })
 
-/**
- * closure_wait_event() - wait on a condition, synchronously or asynchronously.
- * @list:	the wait list to wait on
- * @cl:		the closure that is doing the waiting
- * @condition:	a C expression for the event to wait for
- *
- * If the closure is in blocking mode, sleeps until the @condition evaluates to
- * true - exactly like wait_event().
- *
- * If the closure is not in blocking mode, waits asynchronously; if the
- * condition is currently false the @cl is put onto @list and returns. @list
- * owns a refcount on @cl; closure_sync() or continue_at() may be used later to
- * wait for another thread to wake up @list, which drops the refcount on @cl.
- *
- * Returns the value of @condition; @cl will be on @list iff @condition was
- * false.
- *
- * closure_wake_up(@list) must be called after changing any variable that could
- * cause @condition to become true.
- */
-#define closure_wait_event(list, cl, condition)				\
-	__closure_wait_event(list, cl, condition, closure_blocking(cl))
-
-#define closure_wait_event_async(list, cl, condition)			\
-	__closure_wait_event(list, cl, condition, false)
-
-#define closure_wait_event_sync(list, cl, condition)			\
-	__closure_wait_event(list, cl, condition, true)
+static inline void closure_queue(struct closure *cl)
+{
+	struct workqueue_struct *wq = cl->wq;
+	if (wq) {
+		INIT_WORK(&cl->work, cl->work.func);
+		BUG_ON(!queue_work(wq, &cl->work));
+	} else
+		cl->fn(cl);
+}
 
 static inline void set_closure_fn(struct closure *cl, closure_fn *fn,
 				  struct workqueue_struct *wq)
-- 
cgit 


From 1b207d80d5b986fb305bc899357435d319319513 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Tue, 10 Sep 2013 18:52:54 -0700
Subject: bcache: Kill op->replace

This is prep work for converting bch_btree_insert to
bch_btree_map_leaf_nodes() - we have to convert all its arguments to
actual arguments. Bunch of churn, but should be straightforward.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/btree.c     | 102 +++++++++++++++++++++---------------------
 drivers/md/bcache/btree.h     |  10 +----
 drivers/md/bcache/journal.c   |   2 +-
 drivers/md/bcache/movinggc.c  |   4 +-
 drivers/md/bcache/request.c   |  14 +++---
 drivers/md/bcache/request.h   |   2 +
 drivers/md/bcache/writeback.c |  10 ++---
 7 files changed, 71 insertions(+), 73 deletions(-)

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 3e0c90130c2e..7a1d8dc19e61 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -89,15 +89,6 @@
  * Test module load/unload
  */
 
-static const char * const op_types[] = {
-	"insert", "replace"
-};
-
-static const char *op_type(struct btree_op *op)
-{
-	return op_types[op->type];
-}
-
 enum {
 	BTREE_INSERT_STATUS_INSERT,
 	BTREE_INSERT_STATUS_BACK_MERGE,
@@ -1699,10 +1690,9 @@ static void shift_keys(struct btree *b, struct bkey *where, struct bkey *insert)
 	bch_bset_fix_lookup_table(b, where);
 }
 
-static bool fix_overlapping_extents(struct btree *b,
-				    struct bkey *insert,
+static bool fix_overlapping_extents(struct btree *b, struct bkey *insert,
 				    struct btree_iter *iter,
-				    struct btree_op *op)
+				    struct bkey *replace_key)
 {
 	void subtract_dirty(struct bkey *k, uint64_t offset, int sectors)
 	{
@@ -1730,39 +1720,38 @@ static bool fix_overlapping_extents(struct btree *b,
 		 * We might overlap with 0 size extents; we can't skip these
 		 * because if they're in the set we're inserting to we have to
 		 * adjust them so they don't overlap with the key we're
-		 * inserting. But we don't want to check them for BTREE_REPLACE
+		 * inserting. But we don't want to check them for replace
 		 * operations.
 		 */
 
-		if (op->type == BTREE_REPLACE &&
-		    KEY_SIZE(k)) {
+		if (replace_key && KEY_SIZE(k)) {
 			/*
 			 * k might have been split since we inserted/found the
 			 * key we're replacing
 			 */
 			unsigned i;
 			uint64_t offset = KEY_START(k) -
-				KEY_START(&op->replace);
+				KEY_START(replace_key);
 
 			/* But it must be a subset of the replace key */
-			if (KEY_START(k) < KEY_START(&op->replace) ||
-			    KEY_OFFSET(k) > KEY_OFFSET(&op->replace))
+			if (KEY_START(k) < KEY_START(replace_key) ||
+			    KEY_OFFSET(k) > KEY_OFFSET(replace_key))
 				goto check_failed;
 
 			/* We didn't find a key that we were supposed to */
 			if (KEY_START(k) > KEY_START(insert) + sectors_found)
 				goto check_failed;
 
-			if (KEY_PTRS(&op->replace) != KEY_PTRS(k))
+			if (KEY_PTRS(replace_key) != KEY_PTRS(k))
 				goto check_failed;
 
 			/* skip past gen */
 			offset <<= 8;
 
-			BUG_ON(!KEY_PTRS(&op->replace));
+			BUG_ON(!KEY_PTRS(replace_key));
 
-			for (i = 0; i < KEY_PTRS(&op->replace); i++)
-				if (k->ptr[i] != op->replace.ptr[i] + offset)
+			for (i = 0; i < KEY_PTRS(replace_key); i++)
+				if (k->ptr[i] != replace_key->ptr[i] + offset)
 					goto check_failed;
 
 			sectors_found = KEY_OFFSET(k) - KEY_START(insert);
@@ -1833,9 +1822,8 @@ static bool fix_overlapping_extents(struct btree *b,
 	}
 
 check_failed:
-	if (op->type == BTREE_REPLACE) {
+	if (replace_key) {
 		if (!sectors_found) {
-			op->insert_collision = true;
 			return true;
 		} else if (sectors_found < KEY_SIZE(insert)) {
 			SET_KEY_OFFSET(insert, KEY_OFFSET(insert) -
@@ -1848,7 +1836,7 @@ check_failed:
 }
 
 static bool btree_insert_key(struct btree *b, struct btree_op *op,
-			     struct bkey *k)
+			     struct bkey *k, struct bkey *replace_key)
 {
 	struct bset *i = b->sets[b->nsets].data;
 	struct bkey *m, *prev;
@@ -1874,8 +1862,10 @@ static bool btree_insert_key(struct btree *b, struct btree_op *op,
 		prev = NULL;
 		m = bch_btree_iter_init(b, &iter, &search);
 
-		if (fix_overlapping_extents(b, k, &iter, op))
+		if (fix_overlapping_extents(b, k, &iter, replace_key)) {
+			op->insert_collision = true;
 			return false;
+		}
 
 		if (KEY_DIRTY(k))
 			bcache_dev_sectors_dirty_add(b->c, KEY_INODE(k),
@@ -1903,24 +1893,28 @@ static bool btree_insert_key(struct btree *b, struct btree_op *op,
 		if (m != end(i) &&
 		    bch_bkey_try_merge(b, k, m))
 			goto copy;
-	} else
+	} else {
+		BUG_ON(replace_key);
 		m = bch_bset_search(b, &b->sets[b->nsets], k);
+	}
 
 insert:	shift_keys(b, m, k);
 copy:	bkey_copy(m, k);
 merged:
-	bch_check_keys(b, "%u for %s", status, op_type(op));
+	bch_check_keys(b, "%u for %s", status,
+		       replace_key ? "replace" : "insert");
 
 	if (b->level && !KEY_OFFSET(k))
 		btree_current_write(b)->prio_blocked++;
 
-	trace_bcache_btree_insert_key(b, k, op->type, status);
+	trace_bcache_btree_insert_key(b, k, replace_key != NULL, status);
 
 	return true;
 }
 
 static bool bch_btree_insert_keys(struct btree *b, struct btree_op *op,
-				  struct keylist *insert_keys)
+				  struct keylist *insert_keys,
+				  struct bkey *replace_key)
 {
 	bool ret = false;
 	unsigned oldsize = bch_count_data(b);
@@ -1936,11 +1930,11 @@ static bool bch_btree_insert_keys(struct btree *b, struct btree_op *op,
 		if (bkey_cmp(k, &b->key) <= 0) {
 			bkey_put(b->c, k, b->level);
 
-			ret |= btree_insert_key(b, op, k);
+			ret |= btree_insert_key(b, op, k, replace_key);
 			bch_keylist_pop_front(insert_keys);
 		} else if (bkey_cmp(&START_KEY(k), &b->key) < 0) {
 #if 0
-			if (op->type == BTREE_REPLACE) {
+			if (replace_key) {
 				bkey_put(b->c, k, b->level);
 				bch_keylist_pop_front(insert_keys);
 				op->insert_collision = true;
@@ -1953,7 +1947,7 @@ static bool bch_btree_insert_keys(struct btree *b, struct btree_op *op,
 			bch_cut_back(&b->key, &temp.key);
 			bch_cut_front(&b->key, insert_keys->keys);
 
-			ret |= btree_insert_key(b, op, &temp.key);
+			ret |= btree_insert_key(b, op, &temp.key, replace_key);
 			break;
 		} else {
 			break;
@@ -1968,7 +1962,8 @@ static bool bch_btree_insert_keys(struct btree *b, struct btree_op *op,
 
 static int btree_split(struct btree *b, struct btree_op *op,
 		       struct keylist *insert_keys,
-		       struct keylist *parent_keys)
+		       struct keylist *parent_keys,
+		       struct bkey *replace_key)
 {
 	bool split;
 	struct btree *n1, *n2 = NULL, *n3 = NULL;
@@ -1998,7 +1993,7 @@ static int btree_split(struct btree *b, struct btree_op *op,
 				goto err_free2;
 		}
 
-		bch_btree_insert_keys(n1, op, insert_keys);
+		bch_btree_insert_keys(n1, op, insert_keys, replace_key);
 
 		/*
 		 * Has to be a linear search because we don't have an auxiliary
@@ -2026,7 +2021,7 @@ static int btree_split(struct btree *b, struct btree_op *op,
 	} else {
 		trace_bcache_btree_node_compact(b, n1->sets[0].data->keys);
 
-		bch_btree_insert_keys(n1, op, insert_keys);
+		bch_btree_insert_keys(n1, op, insert_keys, replace_key);
 	}
 
 	bch_keylist_add(parent_keys, &n1->key);
@@ -2036,7 +2031,7 @@ static int btree_split(struct btree *b, struct btree_op *op,
 		/* Depth increases, make a new root */
 
 		bkey_copy_key(&n3->key, &MAX_KEY);
-		bch_btree_insert_keys(n3, op, parent_keys);
+		bch_btree_insert_keys(n3, op, parent_keys, NULL);
 		bch_btree_node_write(n3, &cl);
 
 		closure_sync(&cl);
@@ -2091,7 +2086,8 @@ err:
 
 static int bch_btree_insert_node(struct btree *b, struct btree_op *op,
 				 struct keylist *insert_keys,
-				 atomic_t *journal_ref)
+				 atomic_t *journal_ref,
+				 struct bkey *replace_key)
 {
 	int ret = 0;
 	struct keylist split_keys;
@@ -2101,6 +2097,8 @@ static int bch_btree_insert_node(struct btree *b, struct btree_op *op,
 	BUG_ON(b->level);
 
 	do {
+		BUG_ON(b->level && replace_key);
+
 		if (should_split(b)) {
 			if (current->bio_list) {
 				op->lock = b->c->root->level + 1;
@@ -2112,8 +2110,9 @@ static int bch_btree_insert_node(struct btree *b, struct btree_op *op,
 				struct btree *parent = b->parent;
 
 				ret = btree_split(b, op, insert_keys,
-						  &split_keys);
+						  &split_keys, replace_key);
 				insert_keys = &split_keys;
+				replace_key = NULL;
 				b = parent;
 				if (!ret)
 					ret = -EINTR;
@@ -2121,7 +2120,8 @@ static int bch_btree_insert_node(struct btree *b, struct btree_op *op,
 		} else {
 			BUG_ON(write_block(b) != b->sets[b->nsets].data);
 
-			if (bch_btree_insert_keys(b, op, insert_keys)) {
+			if (bch_btree_insert_keys(b, op, insert_keys,
+						  replace_key)) {
 				if (!b->level) {
 					bch_btree_leaf_dirty(b, journal_ref);
 				} else {
@@ -2165,9 +2165,7 @@ int bch_btree_insert_check_key(struct btree *b, struct btree_op *op,
 
 	bch_keylist_add(&insert, check_key);
 
-	BUG_ON(op->type != BTREE_INSERT);
-
-	ret = bch_btree_insert_node(b, op, &insert, NULL);
+	ret = bch_btree_insert_node(b, op, &insert, NULL, NULL);
 
 	BUG_ON(!ret && !bch_keylist_empty(&insert));
 out:
@@ -2177,7 +2175,8 @@ out:
 }
 
 static int bch_btree_insert_recurse(struct btree *b, struct btree_op *op,
-				    struct keylist *keys, atomic_t *journal_ref)
+				    struct keylist *keys, atomic_t *journal_ref,
+				    struct bkey *replace_key)
 {
 	if (bch_keylist_empty(keys))
 		return 0;
@@ -2194,14 +2193,17 @@ static int bch_btree_insert_recurse(struct btree *b, struct btree_op *op,
 			return -EIO;
 		}
 
-		return btree(insert_recurse, k, b, op, keys, journal_ref);
+		return btree(insert_recurse, k, b, op, keys,
+			     journal_ref, replace_key);
 	} else {
-		return bch_btree_insert_node(b, op, keys, journal_ref);
+		return bch_btree_insert_node(b, op, keys,
+					     journal_ref, replace_key);
 	}
 }
 
 int bch_btree_insert(struct btree_op *op, struct cache_set *c,
-		     struct keylist *keys, atomic_t *journal_ref)
+		     struct keylist *keys, atomic_t *journal_ref,
+		     struct bkey *replace_key)
 {
 	int ret = 0;
 
@@ -2209,7 +2211,8 @@ int bch_btree_insert(struct btree_op *op, struct cache_set *c,
 
 	while (!bch_keylist_empty(keys)) {
 		op->lock = 0;
-		ret = btree_root(insert_recurse, c, op, keys, journal_ref);
+		ret = btree_root(insert_recurse, c, op, keys,
+				 journal_ref, replace_key);
 
 		if (ret == -EAGAIN) {
 			BUG();
@@ -2217,8 +2220,7 @@ int bch_btree_insert(struct btree_op *op, struct cache_set *c,
 		} else if (ret) {
 			struct bkey *k;
 
-			pr_err("error %i trying to insert key for %s",
-			       ret, op_type(op));
+			pr_err("error %i", ret);
 
 			while ((k = bch_keylist_pop(keys)))
 				bkey_put(c, k, 0);
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index 34ee5359b262..6ff08be3e0c9 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -240,15 +240,7 @@ struct btree_op {
 	/* Btree level at which we start taking write locks */
 	short			lock;
 
-	/* Btree insertion type */
-	enum {
-		BTREE_INSERT,
-		BTREE_REPLACE
-	} type:8;
-
 	unsigned		insert_collision:1;
-
-	BKEY_PADDED(replace);
 };
 
 static inline void bch_btree_op_init(struct btree_op *op, int write_lock_level)
@@ -290,7 +282,7 @@ struct btree *bch_btree_node_get(struct cache_set *, struct bkey *, int, bool);
 int bch_btree_insert_check_key(struct btree *, struct btree_op *,
 			       struct bkey *);
 int bch_btree_insert(struct btree_op *, struct cache_set *,
-		     struct keylist *, atomic_t *);
+		     struct keylist *, atomic_t *, struct bkey *);
 
 int bch_gc_thread_start(struct cache_set *);
 size_t bch_btree_gc_finish(struct cache_set *);
diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index 20e900ad5010..592adf51128f 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -322,7 +322,7 @@ int bch_journal_replay(struct cache_set *s, struct list_head *list)
 			bkey_copy(keylist.top, k);
 			bch_keylist_push(&keylist);
 
-			ret = bch_btree_insert(&op, s, &keylist, i->pin);
+			ret = bch_btree_insert(&op, s, &keylist, i->pin, NULL);
 			if (ret)
 				goto err;
 
diff --git a/drivers/md/bcache/movinggc.c b/drivers/md/bcache/movinggc.c
index 219356f6159d..c45ba4f21bae 100644
--- a/drivers/md/bcache/movinggc.c
+++ b/drivers/md/bcache/movinggc.c
@@ -105,8 +105,8 @@ static void write_moving(struct closure *cl)
 		s->writeback		= KEY_DIRTY(&io->w->key);
 		s->csum			= KEY_CSUM(&io->w->key);
 
-		s->op.type = BTREE_REPLACE;
-		bkey_copy(&s->op.replace, &io->w->key);
+		bkey_copy(&s->replace_key, &io->w->key);
+		s->replace = true;
 
 		closure_init(&s->btree, cl);
 		bch_data_insert(&s->btree);
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 5df44fbc9e1d..16a3e16f3ff4 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -217,6 +217,7 @@ static void bch_data_insert_keys(struct closure *cl)
 {
 	struct search *s = container_of(cl, struct search, btree);
 	atomic_t *journal_ref = NULL;
+	struct bkey *replace_key = s->replace ? &s->replace_key : NULL;
 
 	/*
 	 * If we're looping, might already be waiting on
@@ -235,7 +236,8 @@ static void bch_data_insert_keys(struct closure *cl)
 					  s->flush_journal
 					  ? &s->cl : NULL);
 
-	if (bch_btree_insert(&s->op, s->c, &s->insert_keys, journal_ref)) {
+	if (bch_btree_insert(&s->op, s->c, &s->insert_keys,
+			     journal_ref, replace_key)) {
 		s->error		= -ENOMEM;
 		s->insert_data_done	= true;
 	}
@@ -1056,7 +1058,7 @@ static void cached_dev_read_done(struct closure *cl)
 
 	if (s->cache_bio &&
 	    !test_bit(CACHE_SET_STOPPING, &s->c->flags)) {
-		s->op.type = BTREE_REPLACE;
+		BUG_ON(!s->replace);
 		closure_call(&s->btree, bch_data_insert, NULL, cl);
 	}
 
@@ -1101,13 +1103,15 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
 
 	s->cache_bio_sectors = min(sectors, bio_sectors(bio) + reada);
 
-	s->op.replace = KEY(s->inode, bio->bi_sector +
-			    s->cache_bio_sectors, s->cache_bio_sectors);
+	s->replace_key = KEY(s->inode, bio->bi_sector +
+			     s->cache_bio_sectors, s->cache_bio_sectors);
 
-	ret = bch_btree_insert_check_key(b, &s->op, &s->op.replace);
+	ret = bch_btree_insert_check_key(b, &s->op, &s->replace_key);
 	if (ret)
 		return ret;
 
+	s->replace = true;
+
 	miss = bch_bio_split(bio, sectors, GFP_NOIO, s->d->bio_split);
 
 	/* btree_search_recurse()'s btree iterator is no good anymore */
diff --git a/drivers/md/bcache/request.h b/drivers/md/bcache/request.h
index ed578aa53ee2..5ea7a0e6fca0 100644
--- a/drivers/md/bcache/request.h
+++ b/drivers/md/bcache/request.h
@@ -33,6 +33,7 @@ struct search {
 	unsigned		flush_journal:1;
 
 	unsigned		insert_data_done:1;
+	unsigned		replace:1;
 
 	uint16_t		write_prio;
 
@@ -44,6 +45,7 @@ struct search {
 
 	/* Anything past this point won't get zeroed in search_alloc() */
 	struct keylist		insert_keys;
+	BKEY_PADDED(replace_key);
 };
 
 unsigned bch_get_congested(struct cache_set *);
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index d0968e8938f7..346a5341faca 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -146,16 +146,14 @@ static void write_dirty_finish(struct closure *cl)
 		bch_btree_op_init(&op, -1);
 		bch_keylist_init(&keys);
 
-		op.type = BTREE_REPLACE;
-		bkey_copy(&op.replace, &w->key);
-
-		SET_KEY_DIRTY(&w->key, false);
-		bch_keylist_add(&keys, &w->key);
+		bkey_copy(keys.top, &w->key);
+		SET_KEY_DIRTY(keys.top, false);
+		bch_keylist_push(&keys);
 
 		for (i = 0; i < KEY_PTRS(&w->key); i++)
 			atomic_inc(&PTR_BUCKET(dc->disk.c, &w->key, i)->pin);
 
-		bch_btree_insert(&op, dc->disk.c, &keys, NULL);
+		bch_btree_insert(&op, dc->disk.c, &keys, NULL, &w->key);
 
 		if (op.insert_collision)
 			trace_bcache_writeback_collision(&w->key);
-- 
cgit 


From 6054c6d4da1940c7bf8870c6393773aa794f53d8 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 18:06:22 -0700
Subject: bcache: Don't use op->insert_collision

When we convert bch_btree_insert() to bch_btree_map_leaf_nodes(), we
won't be passing struct btree_op to bch_btree_insert() anymore - so we
need a different way of returning whether there was a collision (really,
a replace collision).

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/btree.c     |  3 +++
 drivers/md/bcache/movinggc.c  |  2 +-
 drivers/md/bcache/request.c   | 10 +++++++---
 drivers/md/bcache/request.h   |  1 +
 drivers/md/bcache/writeback.c |  7 ++++---
 5 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 7a1d8dc19e61..441524dd2d77 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -2227,6 +2227,9 @@ int bch_btree_insert(struct btree_op *op, struct cache_set *c,
 		}
 	}
 
+	if (op->insert_collision)
+		return -ESRCH;
+
 	return ret;
 }
 
diff --git a/drivers/md/bcache/movinggc.c b/drivers/md/bcache/movinggc.c
index c45ba4f21bae..601c96a62b30 100644
--- a/drivers/md/bcache/movinggc.c
+++ b/drivers/md/bcache/movinggc.c
@@ -52,7 +52,7 @@ static void write_moving_finish(struct closure *cl)
 	bio_for_each_segment_all(bv, bio, i)
 		__free_page(bv->bv_page);
 
-	if (io->s.op.insert_collision)
+	if (io->s.insert_collision)
 		trace_bcache_gc_copy_collision(&io->w->key);
 
 	bch_keybuf_del(&io->s.c->moving_gc_keys, io->w);
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 16a3e16f3ff4..bcce06a1e466 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -218,6 +218,7 @@ static void bch_data_insert_keys(struct closure *cl)
 	struct search *s = container_of(cl, struct search, btree);
 	atomic_t *journal_ref = NULL;
 	struct bkey *replace_key = s->replace ? &s->replace_key : NULL;
+	int ret;
 
 	/*
 	 * If we're looping, might already be waiting on
@@ -236,8 +237,11 @@ static void bch_data_insert_keys(struct closure *cl)
 					  s->flush_journal
 					  ? &s->cl : NULL);
 
-	if (bch_btree_insert(&s->op, s->c, &s->insert_keys,
-			     journal_ref, replace_key)) {
+	ret = bch_btree_insert(&s->op, s->c, &s->insert_keys,
+			       journal_ref, replace_key);
+	if (ret == -ESRCH) {
+		s->insert_collision = true;
+	} else if (ret) {
 		s->error		= -ENOMEM;
 		s->insert_data_done	= true;
 	}
@@ -977,7 +981,7 @@ static void cached_dev_cache_miss_done(struct closure *cl)
 {
 	struct search *s = container_of(cl, struct search, cl);
 
-	if (s->op.insert_collision)
+	if (s->insert_collision)
 		bch_mark_cache_miss_collision(s);
 
 	if (s->cache_bio) {
diff --git a/drivers/md/bcache/request.h b/drivers/md/bcache/request.h
index 5ea7a0e6fca0..f0e930b4ca89 100644
--- a/drivers/md/bcache/request.h
+++ b/drivers/md/bcache/request.h
@@ -34,6 +34,7 @@ struct search {
 
 	unsigned		insert_data_done:1;
 	unsigned		replace:1;
+	unsigned		insert_collision:1;
 
 	uint16_t		write_prio;
 
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index 346a5341faca..312032ef34f7 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -142,6 +142,7 @@ static void write_dirty_finish(struct closure *cl)
 		unsigned i;
 		struct btree_op op;
 		struct keylist keys;
+		int ret;
 
 		bch_btree_op_init(&op, -1);
 		bch_keylist_init(&keys);
@@ -153,12 +154,12 @@ static void write_dirty_finish(struct closure *cl)
 		for (i = 0; i < KEY_PTRS(&w->key); i++)
 			atomic_inc(&PTR_BUCKET(dc->disk.c, &w->key, i)->pin);
 
-		bch_btree_insert(&op, dc->disk.c, &keys, NULL, &w->key);
+		ret = bch_btree_insert(&op, dc->disk.c, &keys, NULL, &w->key);
 
-		if (op.insert_collision)
+		if (ret)
 			trace_bcache_writeback_collision(&w->key);
 
-		atomic_long_inc(op.insert_collision
+		atomic_long_inc(ret
 				? &dc->disk.c->writeback_keys_failed
 				: &dc->disk.c->writeback_keys_done);
 	}
-- 
cgit 


From cc7b8819212f437fc82f0f9cdc24deb0fb5d775f Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 18:07:22 -0700
Subject: bcache: Convert bch_btree_insert() to bch_btree_map_leaf_nodes()

Last of the btree_map() conversions. Main visible effect is
bch_btree_insert() is no longer taking a struct btree_op as an argument
anymore - there's no fancy state machine stuff going on, it's just a
normal function.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/btree.c     | 79 ++++++++++++++++++++-----------------------
 drivers/md/bcache/btree.h     |  4 +--
 drivers/md/bcache/journal.c   |  4 +--
 drivers/md/bcache/request.c   |  2 +-
 drivers/md/bcache/writeback.c |  6 ++--
 5 files changed, 43 insertions(+), 52 deletions(-)

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 441524dd2d77..f5aa4adadf1d 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -2174,61 +2174,56 @@ out:
 	return ret;
 }
 
-static int bch_btree_insert_recurse(struct btree *b, struct btree_op *op,
-				    struct keylist *keys, atomic_t *journal_ref,
-				    struct bkey *replace_key)
-{
-	if (bch_keylist_empty(keys))
-		return 0;
-
-	if (b->level) {
-		struct bkey *k;
-
-		k = bch_next_recurse_key(b, &START_KEY(keys->keys));
-		if (!k) {
-			btree_bug(b, "no key to recurse on at level %i/%i",
-				  b->level, b->c->root->level);
+struct btree_insert_op {
+	struct btree_op	op;
+	struct keylist	*keys;
+	atomic_t	*journal_ref;
+	struct bkey	*replace_key;
+};
 
-			bch_keylist_reset(keys);
-			return -EIO;
-		}
+int btree_insert_fn(struct btree_op *b_op, struct btree *b)
+{
+	struct btree_insert_op *op = container_of(b_op,
+					struct btree_insert_op, op);
 
-		return btree(insert_recurse, k, b, op, keys,
-			     journal_ref, replace_key);
-	} else {
-		return bch_btree_insert_node(b, op, keys,
-					     journal_ref, replace_key);
-	}
+	int ret = bch_btree_insert_node(b, &op->op, op->keys,
+					op->journal_ref, op->replace_key);
+	if (ret && !bch_keylist_empty(op->keys))
+		return ret;
+	else
+		return MAP_DONE;
 }
 
-int bch_btree_insert(struct btree_op *op, struct cache_set *c,
-		     struct keylist *keys, atomic_t *journal_ref,
-		     struct bkey *replace_key)
+int bch_btree_insert(struct cache_set *c, struct keylist *keys,
+		     atomic_t *journal_ref, struct bkey *replace_key)
 {
+	struct btree_insert_op op;
 	int ret = 0;
 
+	BUG_ON(current->bio_list);
 	BUG_ON(bch_keylist_empty(keys));
 
-	while (!bch_keylist_empty(keys)) {
-		op->lock = 0;
-		ret = btree_root(insert_recurse, c, op, keys,
-				 journal_ref, replace_key);
+	bch_btree_op_init(&op.op, 0);
+	op.keys		= keys;
+	op.journal_ref	= journal_ref;
+	op.replace_key	= replace_key;
 
-		if (ret == -EAGAIN) {
-			BUG();
-			ret = 0;
-		} else if (ret) {
-			struct bkey *k;
+	while (!ret && !bch_keylist_empty(keys)) {
+		op.op.lock = 0;
+		ret = bch_btree_map_leaf_nodes(&op.op, c,
+					       &START_KEY(keys->keys),
+					       btree_insert_fn);
+	}
 
-			pr_err("error %i", ret);
+	if (ret) {
+		struct bkey *k;
 
-			while ((k = bch_keylist_pop(keys)))
-				bkey_put(c, k, 0);
-		}
-	}
+		pr_err("error %i", ret);
 
-	if (op->insert_collision)
-		return -ESRCH;
+		while ((k = bch_keylist_pop(keys)))
+			bkey_put(c, k, 0);
+	} else if (op.op.insert_collision)
+		ret = -ESRCH;
 
 	return ret;
 }
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index 6ff08be3e0c9..8fc1e8925399 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -281,8 +281,8 @@ struct btree *bch_btree_node_get(struct cache_set *, struct bkey *, int, bool);
 
 int bch_btree_insert_check_key(struct btree *, struct btree_op *,
 			       struct bkey *);
-int bch_btree_insert(struct btree_op *, struct cache_set *,
-		     struct keylist *, atomic_t *, struct bkey *);
+int bch_btree_insert(struct cache_set *, struct keylist *,
+		     atomic_t *, struct bkey *);
 
 int bch_gc_thread_start(struct cache_set *);
 size_t bch_btree_gc_finish(struct cache_set *);
diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index 592adf51128f..86de64a6bf26 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -302,10 +302,8 @@ int bch_journal_replay(struct cache_set *s, struct list_head *list)
 
 	uint64_t start = i->j.last_seq, end = i->j.seq, n = start;
 	struct keylist keylist;
-	struct btree_op op;
 
 	bch_keylist_init(&keylist);
-	bch_btree_op_init(&op, SHRT_MAX);
 
 	list_for_each_entry(i, list, list) {
 		BUG_ON(i->pin && atomic_read(i->pin) != 1);
@@ -322,7 +320,7 @@ int bch_journal_replay(struct cache_set *s, struct list_head *list)
 			bkey_copy(keylist.top, k);
 			bch_keylist_push(&keylist);
 
-			ret = bch_btree_insert(&op, s, &keylist, i->pin, NULL);
+			ret = bch_btree_insert(s, &keylist, i->pin, NULL);
 			if (ret)
 				goto err;
 
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index bcce06a1e466..6cee2ae1d87f 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -237,7 +237,7 @@ static void bch_data_insert_keys(struct closure *cl)
 					  s->flush_journal
 					  ? &s->cl : NULL);
 
-	ret = bch_btree_insert(&s->op, s->c, &s->insert_keys,
+	ret = bch_btree_insert(s->c, &s->insert_keys,
 			       journal_ref, replace_key);
 	if (ret == -ESRCH) {
 		s->insert_collision = true;
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index 312032ef34f7..ab0f6b449111 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -139,12 +139,10 @@ static void write_dirty_finish(struct closure *cl)
 
 	/* This is kind of a dumb way of signalling errors. */
 	if (KEY_DIRTY(&w->key)) {
+		int ret;
 		unsigned i;
-		struct btree_op op;
 		struct keylist keys;
-		int ret;
 
-		bch_btree_op_init(&op, -1);
 		bch_keylist_init(&keys);
 
 		bkey_copy(keys.top, &w->key);
@@ -154,7 +152,7 @@ static void write_dirty_finish(struct closure *cl)
 		for (i = 0; i < KEY_PTRS(&w->key); i++)
 			atomic_inc(&PTR_BUCKET(dc->disk.c, &w->key, i)->pin);
 
-		ret = bch_btree_insert(&op, dc->disk.c, &keys, NULL, &w->key);
+		ret = bch_btree_insert(dc->disk.c, &keys, NULL, &w->key);
 
 		if (ret)
 			trace_bcache_writeback_collision(&w->key);
-- 
cgit 


From 220bb38c21b83e2f7b842f33220bf727093eca89 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Tue, 10 Sep 2013 19:02:45 -0700
Subject: bcache: Break up struct search

With all the recent refactoring around struct btree op struct search has
gotten rather large.

But we can now easily break it up in a different way - we break out
struct btree_insert_op which is for inserting data into the cache, and
that's now what the copying gc code uses - struct search is now specific
to request.c

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/debug.c     |  38 +--
 drivers/md/bcache/debug.h     |   4 +-
 drivers/md/bcache/movinggc.c  |  56 ++--
 drivers/md/bcache/request.c   | 580 ++++++++++++++++++++++--------------------
 drivers/md/bcache/request.h   |  37 +--
 drivers/md/bcache/stats.c     |  26 +-
 drivers/md/bcache/stats.h     |  13 +-
 drivers/md/bcache/trace.c     |   1 -
 include/trace/events/bcache.h |  18 +-
 9 files changed, 378 insertions(+), 395 deletions(-)

diff --git a/drivers/md/bcache/debug.c b/drivers/md/bcache/debug.c
index 88e6411eab4f..d9ccb3169aa2 100644
--- a/drivers/md/bcache/debug.c
+++ b/drivers/md/bcache/debug.c
@@ -8,7 +8,6 @@
 #include "bcache.h"
 #include "btree.h"
 #include "debug.h"
-#include "request.h"
 
 #include <linux/console.h>
 #include <linux/debugfs.h>
@@ -176,42 +175,25 @@ void bch_btree_verify(struct btree *b, struct bset *new)
 	mutex_unlock(&b->c->verify_lock);
 }
 
-static void data_verify_endio(struct bio *bio, int error)
-{
-	struct closure *cl = bio->bi_private;
-	closure_put(cl);
-}
-
-void bch_data_verify(struct search *s)
+void bch_data_verify(struct cached_dev *dc, struct bio *bio)
 {
 	char name[BDEVNAME_SIZE];
-	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
-	struct closure *cl = &s->cl;
 	struct bio *check;
 	struct bio_vec *bv;
 	int i;
 
-	if (!s->unaligned_bvec)
-		bio_for_each_segment(bv, s->orig_bio, i)
-			bv->bv_offset = 0, bv->bv_len = PAGE_SIZE;
-
-	check = bio_clone(s->orig_bio, GFP_NOIO);
+	check = bio_clone(bio, GFP_NOIO);
 	if (!check)
 		return;
 
 	if (bio_alloc_pages(check, GFP_NOIO))
 		goto out_put;
 
-	check->bi_rw		= READ_SYNC;
-	check->bi_private	= cl;
-	check->bi_end_io	= data_verify_endio;
-
-	closure_bio_submit(check, cl, &dc->disk);
-	closure_sync(cl);
+	submit_bio_wait(READ_SYNC, check);
 
-	bio_for_each_segment(bv, s->orig_bio, i) {
-		void *p1 = kmap(bv->bv_page);
-		void *p2 = kmap(check->bi_io_vec[i].bv_page);
+	bio_for_each_segment(bv, bio, i) {
+		void *p1 = kmap_atomic(bv->bv_page);
+		void *p2 = page_address(check->bi_io_vec[i].bv_page);
 
 		if (memcmp(p1 + bv->bv_offset,
 			   p2 + bv->bv_offset,
@@ -219,13 +201,11 @@ void bch_data_verify(struct search *s)
 			printk(KERN_ERR
 			       "bcache (%s): verify failed at sector %llu\n",
 			       bdevname(dc->bdev, name),
-			       (uint64_t) s->orig_bio->bi_sector);
-
-		kunmap(bv->bv_page);
-		kunmap(check->bi_io_vec[i].bv_page);
+			       (uint64_t) bio->bi_sector);
+		kunmap_atomic(p1);
 	}
 
-	__bio_for_each_segment(bv, check, i, 0)
+	bio_for_each_segment_all(bv, check, i)
 		__free_page(bv->bv_page);
 out_put:
 	bio_put(check);
diff --git a/drivers/md/bcache/debug.h b/drivers/md/bcache/debug.h
index 1c39b5a2489b..0f4b3440512c 100644
--- a/drivers/md/bcache/debug.h
+++ b/drivers/md/bcache/debug.h
@@ -29,12 +29,12 @@ void bch_check_keys(struct btree *, const char *, ...);
 #ifdef CONFIG_BCACHE_DEBUG
 
 void bch_btree_verify(struct btree *, struct bset *);
-void bch_data_verify(struct search *);
+void bch_data_verify(struct cached_dev *, struct bio *);
 
 #else /* DEBUG */
 
 static inline void bch_btree_verify(struct btree *b, struct bset *i) {}
-static inline void bch_data_verify(struct search *s) {};
+static inline void bch_data_verify(struct cached_dev *dc, struct bio *bio) {};
 
 #endif
 
diff --git a/drivers/md/bcache/movinggc.c b/drivers/md/bcache/movinggc.c
index 601c96a62b30..7c1275e66025 100644
--- a/drivers/md/bcache/movinggc.c
+++ b/drivers/md/bcache/movinggc.c
@@ -12,8 +12,9 @@
 #include <trace/events/bcache.h>
 
 struct moving_io {
+	struct closure		cl;
 	struct keybuf_key	*w;
-	struct search		s;
+	struct data_insert_op	op;
 	struct bbio		bio;
 };
 
@@ -38,13 +39,13 @@ static bool moving_pred(struct keybuf *buf, struct bkey *k)
 
 static void moving_io_destructor(struct closure *cl)
 {
-	struct moving_io *io = container_of(cl, struct moving_io, s.cl);
+	struct moving_io *io = container_of(cl, struct moving_io, cl);
 	kfree(io);
 }
 
 static void write_moving_finish(struct closure *cl)
 {
-	struct moving_io *io = container_of(cl, struct moving_io, s.cl);
+	struct moving_io *io = container_of(cl, struct moving_io, cl);
 	struct bio *bio = &io->bio.bio;
 	struct bio_vec *bv;
 	int i;
@@ -52,12 +53,12 @@ static void write_moving_finish(struct closure *cl)
 	bio_for_each_segment_all(bv, bio, i)
 		__free_page(bv->bv_page);
 
-	if (io->s.insert_collision)
+	if (io->op.replace_collision)
 		trace_bcache_gc_copy_collision(&io->w->key);
 
-	bch_keybuf_del(&io->s.c->moving_gc_keys, io->w);
+	bch_keybuf_del(&io->op.c->moving_gc_keys, io->w);
 
-	up(&io->s.c->moving_in_flight);
+	up(&io->op.c->moving_in_flight);
 
 	closure_return_with_destructor(cl, moving_io_destructor);
 }
@@ -65,12 +66,12 @@ static void write_moving_finish(struct closure *cl)
 static void read_moving_endio(struct bio *bio, int error)
 {
 	struct moving_io *io = container_of(bio->bi_private,
-					    struct moving_io, s.cl);
+					    struct moving_io, cl);
 
 	if (error)
-		io->s.error = error;
+		io->op.error = error;
 
-	bch_bbio_endio(io->s.c, bio, error, "reading data to move");
+	bch_bbio_endio(io->op.c, bio, error, "reading data to move");
 }
 
 static void moving_init(struct moving_io *io)
@@ -84,32 +85,30 @@ static void moving_init(struct moving_io *io)
 	bio->bi_size		= KEY_SIZE(&io->w->key) << 9;
 	bio->bi_max_vecs	= DIV_ROUND_UP(KEY_SIZE(&io->w->key),
 					       PAGE_SECTORS);
-	bio->bi_private		= &io->s.cl;
+	bio->bi_private		= &io->cl;
 	bio->bi_io_vec		= bio->bi_inline_vecs;
 	bch_bio_map(bio, NULL);
 }
 
 static void write_moving(struct closure *cl)
 {
-	struct search *s = container_of(cl, struct search, cl);
-	struct moving_io *io = container_of(s, struct moving_io, s);
+	struct moving_io *io = container_of(cl, struct moving_io, cl);
+	struct data_insert_op *op = &io->op;
 
-	if (!s->error) {
+	if (!op->error) {
 		moving_init(io);
 
-		io->bio.bio.bi_sector	= KEY_START(&io->w->key);
-		s->op.lock		= -1;
-		s->write_prio		= 1;
-		s->cache_bio		= &io->bio.bio;
+		io->bio.bio.bi_sector = KEY_START(&io->w->key);
+		op->write_prio		= 1;
+		op->bio			= &io->bio.bio;
 
-		s->writeback		= KEY_DIRTY(&io->w->key);
-		s->csum			= KEY_CSUM(&io->w->key);
+		op->writeback		= KEY_DIRTY(&io->w->key);
+		op->csum		= KEY_CSUM(&io->w->key);
 
-		bkey_copy(&s->replace_key, &io->w->key);
-		s->replace = true;
+		bkey_copy(&op->replace_key, &io->w->key);
+		op->replace		= true;
 
-		closure_init(&s->btree, cl);
-		bch_data_insert(&s->btree);
+		closure_call(&op->cl, bch_data_insert, NULL, cl);
 	}
 
 	continue_at(cl, write_moving_finish, system_wq);
@@ -117,11 +116,10 @@ static void write_moving(struct closure *cl)
 
 static void read_moving_submit(struct closure *cl)
 {
-	struct search *s = container_of(cl, struct search, cl);
-	struct moving_io *io = container_of(s, struct moving_io, s);
+	struct moving_io *io = container_of(cl, struct moving_io, cl);
 	struct bio *bio = &io->bio.bio;
 
-	bch_submit_bbio(bio, s->c, &io->w->key, 0);
+	bch_submit_bbio(bio, io->op.c, &io->w->key, 0);
 
 	continue_at(cl, write_moving, system_wq);
 }
@@ -151,8 +149,8 @@ static void read_moving(struct cache_set *c)
 
 		w->private	= io;
 		io->w		= w;
-		io->s.inode	= KEY_INODE(&w->key);
-		io->s.c		= c;
+		io->op.inode	= KEY_INODE(&w->key);
+		io->op.c	= c;
 
 		moving_init(io);
 		bio = &io->bio.bio;
@@ -166,7 +164,7 @@ static void read_moving(struct cache_set *c)
 		trace_bcache_gc_copy(&w->key);
 
 		down(&c->moving_in_flight);
-		closure_call(&io->s.cl, read_moving_submit, NULL, &cl);
+		closure_call(&io->cl, read_moving_submit, NULL, &cl);
 	}
 
 	if (0) {
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 6cee2ae1d87f..05c7c216f65e 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -215,9 +215,9 @@ static void bio_csum(struct bio *bio, struct bkey *k)
 
 static void bch_data_insert_keys(struct closure *cl)
 {
-	struct search *s = container_of(cl, struct search, btree);
+	struct data_insert_op *op = container_of(cl, struct data_insert_op, cl);
 	atomic_t *journal_ref = NULL;
-	struct bkey *replace_key = s->replace ? &s->replace_key : NULL;
+	struct bkey *replace_key = op->replace ? &op->replace_key : NULL;
 	int ret;
 
 	/*
@@ -232,27 +232,26 @@ static void bch_data_insert_keys(struct closure *cl)
 		closure_sync(&s->cl);
 #endif
 
-	if (s->write)
-		journal_ref = bch_journal(s->c, &s->insert_keys,
-					  s->flush_journal
-					  ? &s->cl : NULL);
+	if (!op->replace)
+		journal_ref = bch_journal(op->c, &op->insert_keys,
+					  op->flush_journal ? cl : NULL);
 
-	ret = bch_btree_insert(s->c, &s->insert_keys,
+	ret = bch_btree_insert(op->c, &op->insert_keys,
 			       journal_ref, replace_key);
 	if (ret == -ESRCH) {
-		s->insert_collision = true;
+		op->replace_collision = true;
 	} else if (ret) {
-		s->error		= -ENOMEM;
-		s->insert_data_done	= true;
+		op->error		= -ENOMEM;
+		op->insert_data_done	= true;
 	}
 
 	if (journal_ref)
 		atomic_dec_bug(journal_ref);
 
-	if (!s->insert_data_done)
+	if (!op->insert_data_done)
 		continue_at(cl, bch_data_insert_start, bcache_wq);
 
-	bch_keylist_free(&s->insert_keys);
+	bch_keylist_free(&op->insert_keys);
 	closure_return(cl);
 }
 
@@ -349,10 +348,10 @@ found:
  *
  * If s->writeback is true, will not fail.
  */
-static bool bch_alloc_sectors(struct bkey *k, unsigned sectors,
-			      struct search *s)
+static bool bch_alloc_sectors(struct data_insert_op *op,
+			      struct bkey *k, unsigned sectors)
 {
-	struct cache_set *c = s->c;
+	struct cache_set *c = op->c;
 	struct open_bucket *b;
 	BKEY_PADDED(key) alloc;
 	unsigned i;
@@ -367,15 +366,15 @@ static bool bch_alloc_sectors(struct bkey *k, unsigned sectors,
 	bkey_init(&alloc.key);
 	spin_lock(&c->data_bucket_lock);
 
-	while (!(b = pick_data_bucket(c, k, s->task, &alloc.key))) {
-		unsigned watermark = s->write_prio
+	while (!(b = pick_data_bucket(c, k, op->task, &alloc.key))) {
+		unsigned watermark = op->write_prio
 			? WATERMARK_MOVINGGC
 			: WATERMARK_NONE;
 
 		spin_unlock(&c->data_bucket_lock);
 
 		if (bch_bucket_alloc_set(c, watermark, &alloc.key,
-					 1, s->writeback))
+					 1, op->writeback))
 			return false;
 
 		spin_lock(&c->data_bucket_lock);
@@ -409,7 +408,7 @@ static bool bch_alloc_sectors(struct bkey *k, unsigned sectors,
 	 */
 	list_move_tail(&b->list, &c->data_buckets);
 	bkey_copy_key(&b->key, k);
-	b->last = s->task;
+	b->last = op->task;
 
 	b->sectors_free	-= sectors;
 
@@ -438,8 +437,8 @@ static bool bch_alloc_sectors(struct bkey *k, unsigned sectors,
 
 static void bch_data_invalidate(struct closure *cl)
 {
-	struct search *s = container_of(cl, struct search, btree);
-	struct bio *bio = s->cache_bio;
+	struct data_insert_op *op = container_of(cl, struct data_insert_op, cl);
+	struct bio *bio = op->bio;
 
 	pr_debug("invalidating %i sectors from %llu",
 		 bio_sectors(bio), (uint64_t) bio->bi_sector);
@@ -447,17 +446,17 @@ static void bch_data_invalidate(struct closure *cl)
 	while (bio_sectors(bio)) {
 		unsigned len = min(bio_sectors(bio), 1U << 14);
 
-		if (bch_keylist_realloc(&s->insert_keys, 0, s->c))
+		if (bch_keylist_realloc(&op->insert_keys, 0, op->c))
 			goto out;
 
 		bio->bi_sector	+= len;
 		bio->bi_size	-= len << 9;
 
-		bch_keylist_add(&s->insert_keys,
-				&KEY(s->inode, bio->bi_sector, len));
+		bch_keylist_add(&op->insert_keys,
+				&KEY(op->inode, bio->bi_sector, len));
 	}
 
-	s->insert_data_done = true;
+	op->insert_data_done = true;
 	bio_put(bio);
 out:
 	continue_at(cl, bch_data_insert_keys, bcache_wq);
@@ -465,7 +464,7 @@ out:
 
 static void bch_data_insert_error(struct closure *cl)
 {
-	struct search *s = container_of(cl, struct search, btree);
+	struct data_insert_op *op = container_of(cl, struct data_insert_op, cl);
 
 	/*
 	 * Our data write just errored, which means we've got a bunch of keys to
@@ -476,9 +475,9 @@ static void bch_data_insert_error(struct closure *cl)
 	 * from the keys we'll accomplish just that.
 	 */
 
-	struct bkey *src = s->insert_keys.keys, *dst = s->insert_keys.keys;
+	struct bkey *src = op->insert_keys.keys, *dst = op->insert_keys.keys;
 
-	while (src != s->insert_keys.top) {
+	while (src != op->insert_keys.top) {
 		struct bkey *n = bkey_next(src);
 
 		SET_KEY_PTRS(src, 0);
@@ -488,7 +487,7 @@ static void bch_data_insert_error(struct closure *cl)
 		src = n;
 	}
 
-	s->insert_keys.top = dst;
+	op->insert_keys.top = dst;
 
 	bch_data_insert_keys(cl);
 }
@@ -496,32 +495,32 @@ static void bch_data_insert_error(struct closure *cl)
 static void bch_data_insert_endio(struct bio *bio, int error)
 {
 	struct closure *cl = bio->bi_private;
-	struct search *s = container_of(cl, struct search, btree);
+	struct data_insert_op *op = container_of(cl, struct data_insert_op, cl);
 
 	if (error) {
 		/* TODO: We could try to recover from this. */
-		if (s->writeback)
-			s->error = error;
-		else if (s->write)
+		if (op->writeback)
+			op->error = error;
+		else if (!op->replace)
 			set_closure_fn(cl, bch_data_insert_error, bcache_wq);
 		else
 			set_closure_fn(cl, NULL, NULL);
 	}
 
-	bch_bbio_endio(s->c, bio, error, "writing data to cache");
+	bch_bbio_endio(op->c, bio, error, "writing data to cache");
 }
 
 static void bch_data_insert_start(struct closure *cl)
 {
-	struct search *s = container_of(cl, struct search, btree);
-	struct bio *bio = s->cache_bio, *n;
+	struct data_insert_op *op = container_of(cl, struct data_insert_op, cl);
+	struct bio *bio = op->bio, *n;
 
-	if (s->bypass)
+	if (op->bypass)
 		return bch_data_invalidate(cl);
 
-	if (atomic_sub_return(bio_sectors(bio), &s->c->sectors_to_gc) < 0) {
-		set_gc_sectors(s->c);
-		wake_up_gc(s->c);
+	if (atomic_sub_return(bio_sectors(bio), &op->c->sectors_to_gc) < 0) {
+		set_gc_sectors(op->c);
+		wake_up_gc(op->c);
 	}
 
 	/*
@@ -533,21 +532,20 @@ static void bch_data_insert_start(struct closure *cl)
 	do {
 		unsigned i;
 		struct bkey *k;
-		struct bio_set *split = s->d
-			? s->d->bio_split : s->c->bio_split;
+		struct bio_set *split = op->c->bio_split;
 
 		/* 1 for the device pointer and 1 for the chksum */
-		if (bch_keylist_realloc(&s->insert_keys,
-					1 + (s->csum ? 1 : 0),
-					s->c))
+		if (bch_keylist_realloc(&op->insert_keys,
+					1 + (op->csum ? 1 : 0),
+					op->c))
 			continue_at(cl, bch_data_insert_keys, bcache_wq);
 
-		k = s->insert_keys.top;
+		k = op->insert_keys.top;
 		bkey_init(k);
-		SET_KEY_INODE(k, s->inode);
+		SET_KEY_INODE(k, op->inode);
 		SET_KEY_OFFSET(k, bio->bi_sector);
 
-		if (!bch_alloc_sectors(k, bio_sectors(bio), s))
+		if (!bch_alloc_sectors(op, k, bio_sectors(bio)))
 			goto err;
 
 		n = bch_bio_split(bio, KEY_SIZE(k), GFP_NOIO, split);
@@ -555,30 +553,30 @@ static void bch_data_insert_start(struct closure *cl)
 		n->bi_end_io	= bch_data_insert_endio;
 		n->bi_private	= cl;
 
-		if (s->writeback) {
+		if (op->writeback) {
 			SET_KEY_DIRTY(k, true);
 
 			for (i = 0; i < KEY_PTRS(k); i++)
-				SET_GC_MARK(PTR_BUCKET(s->c, k, i),
+				SET_GC_MARK(PTR_BUCKET(op->c, k, i),
 					    GC_MARK_DIRTY);
 		}
 
-		SET_KEY_CSUM(k, s->csum);
+		SET_KEY_CSUM(k, op->csum);
 		if (KEY_CSUM(k))
 			bio_csum(n, k);
 
 		trace_bcache_cache_insert(k);
-		bch_keylist_push(&s->insert_keys);
+		bch_keylist_push(&op->insert_keys);
 
 		n->bi_rw |= REQ_WRITE;
-		bch_submit_bbio(n, s->c, k, 0);
+		bch_submit_bbio(n, op->c, k, 0);
 	} while (n != bio);
 
-	s->insert_data_done = true;
+	op->insert_data_done = true;
 	continue_at(cl, bch_data_insert_keys, bcache_wq);
 err:
 	/* bch_alloc_sectors() blocks if s->writeback = true */
-	BUG_ON(s->writeback);
+	BUG_ON(op->writeback);
 
 	/*
 	 * But if it's not a writeback write we'd rather just bail out if
@@ -586,24 +584,24 @@ err:
 	 * we might be starving btree writes for gc or something.
 	 */
 
-	if (s->write) {
+	if (!op->replace) {
 		/*
 		 * Writethrough write: We can't complete the write until we've
 		 * updated the index. But we don't want to delay the write while
 		 * we wait for buckets to be freed up, so just invalidate the
 		 * rest of the write.
 		 */
-		s->bypass = true;
+		op->bypass = true;
 		return bch_data_invalidate(cl);
 	} else {
 		/*
 		 * From a cache miss, we can just insert the keys for the data
 		 * we have written or bail out if we didn't do anything.
 		 */
-		s->insert_data_done = true;
+		op->insert_data_done = true;
 		bio_put(bio);
 
-		if (!bch_keylist_empty(&s->insert_keys))
+		if (!bch_keylist_empty(&op->insert_keys))
 			continue_at(cl, bch_data_insert_keys, bcache_wq);
 		else
 			closure_return(cl);
@@ -631,15 +629,169 @@ err:
  */
 void bch_data_insert(struct closure *cl)
 {
-	struct search *s = container_of(cl, struct search, btree);
+	struct data_insert_op *op = container_of(cl, struct data_insert_op, cl);
 
-	bch_keylist_init(&s->insert_keys);
-	bio_get(s->cache_bio);
+	trace_bcache_write(op->bio, op->writeback, op->bypass);
+
+	bch_keylist_init(&op->insert_keys);
+	bio_get(op->bio);
 	bch_data_insert_start(cl);
 }
 
+/* Congested? */
+
+unsigned bch_get_congested(struct cache_set *c)
+{
+	int i;
+	long rand;
+
+	if (!c->congested_read_threshold_us &&
+	    !c->congested_write_threshold_us)
+		return 0;
+
+	i = (local_clock_us() - c->congested_last_us) / 1024;
+	if (i < 0)
+		return 0;
+
+	i += atomic_read(&c->congested);
+	if (i >= 0)
+		return 0;
+
+	i += CONGESTED_MAX;
+
+	if (i > 0)
+		i = fract_exp_two(i, 6);
+
+	rand = get_random_int();
+	i -= bitmap_weight(&rand, BITS_PER_LONG);
+
+	return i > 0 ? i : 1;
+}
+
+static void add_sequential(struct task_struct *t)
+{
+	ewma_add(t->sequential_io_avg,
+		 t->sequential_io, 8, 0);
+
+	t->sequential_io = 0;
+}
+
+static struct hlist_head *iohash(struct cached_dev *dc, uint64_t k)
+{
+	return &dc->io_hash[hash_64(k, RECENT_IO_BITS)];
+}
+
+static bool check_should_bypass(struct cached_dev *dc, struct bio *bio)
+{
+	struct cache_set *c = dc->disk.c;
+	unsigned mode = cache_mode(dc, bio);
+	unsigned sectors, congested = bch_get_congested(c);
+	struct task_struct *task = current;
+
+	if (atomic_read(&dc->disk.detaching) ||
+	    c->gc_stats.in_use > CUTOFF_CACHE_ADD ||
+	    (bio->bi_rw & REQ_DISCARD))
+		goto skip;
+
+	if (mode == CACHE_MODE_NONE ||
+	    (mode == CACHE_MODE_WRITEAROUND &&
+	     (bio->bi_rw & REQ_WRITE)))
+		goto skip;
+
+	if (bio->bi_sector & (c->sb.block_size - 1) ||
+	    bio_sectors(bio) & (c->sb.block_size - 1)) {
+		pr_debug("skipping unaligned io");
+		goto skip;
+	}
+
+	if (!congested && !dc->sequential_cutoff)
+		goto rescale;
+
+	if (!congested &&
+	    mode == CACHE_MODE_WRITEBACK &&
+	    (bio->bi_rw & REQ_WRITE) &&
+	    (bio->bi_rw & REQ_SYNC))
+		goto rescale;
+
+	if (dc->sequential_merge) {
+		struct io *i;
+
+		spin_lock(&dc->io_lock);
+
+		hlist_for_each_entry(i, iohash(dc, bio->bi_sector), hash)
+			if (i->last == bio->bi_sector &&
+			    time_before(jiffies, i->jiffies))
+				goto found;
+
+		i = list_first_entry(&dc->io_lru, struct io, lru);
+
+		add_sequential(task);
+		i->sequential = 0;
+found:
+		if (i->sequential + bio->bi_size > i->sequential)
+			i->sequential	+= bio->bi_size;
+
+		i->last			 = bio_end_sector(bio);
+		i->jiffies		 = jiffies + msecs_to_jiffies(5000);
+		task->sequential_io	 = i->sequential;
+
+		hlist_del(&i->hash);
+		hlist_add_head(&i->hash, iohash(dc, i->last));
+		list_move_tail(&i->lru, &dc->io_lru);
+
+		spin_unlock(&dc->io_lock);
+	} else {
+		task->sequential_io = bio->bi_size;
+
+		add_sequential(task);
+	}
+
+	sectors = max(task->sequential_io,
+		      task->sequential_io_avg) >> 9;
+
+	if (dc->sequential_cutoff &&
+	    sectors >= dc->sequential_cutoff >> 9) {
+		trace_bcache_bypass_sequential(bio);
+		goto skip;
+	}
+
+	if (congested && sectors >= congested) {
+		trace_bcache_bypass_congested(bio);
+		goto skip;
+	}
+
+rescale:
+	bch_rescale_priorities(c, bio_sectors(bio));
+	return false;
+skip:
+	bch_mark_sectors_bypassed(c, dc, bio_sectors(bio));
+	return true;
+}
+
 /* Cache lookup */
 
+struct search {
+	/* Stack frame for bio_complete */
+	struct closure		cl;
+
+	struct bcache_device	*d;
+
+	struct bbio		bio;
+	struct bio		*orig_bio;
+	struct bio		*cache_miss;
+
+	unsigned		insert_bio_sectors;
+
+	unsigned		recoverable:1;
+	unsigned		unaligned_bvec:1;
+	unsigned		write:1;
+
+	unsigned long		start_time;
+
+	struct btree_op		op;
+	struct data_insert_op	iop;
+};
+
 static void bch_cache_read_endio(struct bio *bio, int error)
 {
 	struct bbio *b = container_of(bio, struct bbio, bio);
@@ -654,13 +806,13 @@ static void bch_cache_read_endio(struct bio *bio, int error)
 	 */
 
 	if (error)
-		s->error = error;
-	else if (ptr_stale(s->c, &b->key, 0)) {
-		atomic_long_inc(&s->c->cache_read_races);
-		s->error = -EINTR;
+		s->iop.error = error;
+	else if (ptr_stale(s->iop.c, &b->key, 0)) {
+		atomic_long_inc(&s->iop.c->cache_read_races);
+		s->iop.error = -EINTR;
 	}
 
-	bch_bbio_endio(s->c, bio, error, "reading from cache");
+	bch_bbio_endio(s->iop.c, bio, error, "reading from cache");
 }
 
 /*
@@ -674,13 +826,13 @@ static int cache_lookup_fn(struct btree_op *op, struct btree *b, struct bkey *k)
 	struct bkey *bio_key;
 	unsigned ptr;
 
-	if (bkey_cmp(k, &KEY(s->inode, bio->bi_sector, 0)) <= 0)
+	if (bkey_cmp(k, &KEY(s->iop.inode, bio->bi_sector, 0)) <= 0)
 		return MAP_CONTINUE;
 
-	if (KEY_INODE(k) != s->inode ||
+	if (KEY_INODE(k) != s->iop.inode ||
 	    KEY_START(k) > bio->bi_sector) {
 		unsigned bio_sectors = bio_sectors(bio);
-		unsigned sectors = KEY_INODE(k) == s->inode
+		unsigned sectors = KEY_INODE(k) == s->iop.inode
 			? min_t(uint64_t, INT_MAX,
 				KEY_START(k) - bio->bi_sector)
 			: INT_MAX;
@@ -708,8 +860,8 @@ static int cache_lookup_fn(struct btree_op *op, struct btree *b, struct bkey *k)
 	bio_key = &container_of(n, struct bbio, bio)->key;
 	bch_bkey_copy_single_ptr(bio_key, k, ptr);
 
-	bch_cut_front(&KEY(s->inode, n->bi_sector, 0), bio_key);
-	bch_cut_back(&KEY(s->inode, bio_end_sector(n), 0), bio_key);
+	bch_cut_front(&KEY(s->iop.inode, n->bi_sector, 0), bio_key);
+	bch_cut_back(&KEY(s->iop.inode, bio_end_sector(n), 0), bio_key);
 
 	n->bi_end_io	= bch_cache_read_endio;
 	n->bi_private	= &s->cl;
@@ -731,11 +883,11 @@ static int cache_lookup_fn(struct btree_op *op, struct btree *b, struct bkey *k)
 
 static void cache_lookup(struct closure *cl)
 {
-	struct search *s = container_of(cl, struct search, btree);
+	struct search *s = container_of(cl, struct search, iop.cl);
 	struct bio *bio = &s->bio.bio;
 
-	int ret = bch_btree_map_keys(&s->op, s->c,
-				     &KEY(s->inode, bio->bi_sector, 0),
+	int ret = bch_btree_map_keys(&s->op, s->iop.c,
+				     &KEY(s->iop.inode, bio->bi_sector, 0),
 				     cache_lookup_fn, MAP_END_KEY);
 	if (ret == -EAGAIN)
 		continue_at(cl, cache_lookup, bcache_wq);
@@ -751,7 +903,7 @@ static void request_endio(struct bio *bio, int error)
 
 	if (error) {
 		struct search *s = container_of(cl, struct search, cl);
-		s->error = error;
+		s->iop.error = error;
 		/* Only cache read errors are recoverable */
 		s->recoverable = false;
 	}
@@ -771,8 +923,8 @@ static void bio_complete(struct search *s)
 		part_stat_add(cpu, &s->d->disk->part0, ticks[rw], duration);
 		part_stat_unlock();
 
-		trace_bcache_request_end(s, s->orig_bio);
-		bio_endio(s->orig_bio, s->error);
+		trace_bcache_request_end(s->d, s->orig_bio);
+		bio_endio(s->orig_bio, s->iop.error);
 		s->orig_bio = NULL;
 	}
 }
@@ -792,8 +944,8 @@ static void search_free(struct closure *cl)
 	struct search *s = container_of(cl, struct search, cl);
 	bio_complete(s);
 
-	if (s->cache_bio)
-		bio_put(s->cache_bio);
+	if (s->iop.bio)
+		bio_put(s->iop.bio);
 
 	if (s->unaligned_bvec)
 		mempool_free(s->bio.bio.bi_io_vec, s->d->unaligned_bvec);
@@ -808,18 +960,18 @@ static struct search *search_alloc(struct bio *bio, struct bcache_device *d)
 	struct bio_vec *bv;
 
 	s = mempool_alloc(d->c->search, GFP_NOIO);
-	memset(s, 0, offsetof(struct search, insert_keys));
+	memset(s, 0, offsetof(struct search, iop.insert_keys));
 
 	__closure_init(&s->cl, NULL);
 
-	s->inode		= d->id;
-	s->c			= d->c;
+	s->iop.inode		= d->id;
+	s->iop.c		= d->c;
 	s->d			= d;
 	s->op.lock		= -1;
-	s->task			= current;
+	s->iop.task		= current;
 	s->orig_bio		= bio;
 	s->write		= (bio->bi_rw & REQ_WRITE) != 0;
-	s->flush_journal	= (bio->bi_rw & (REQ_FLUSH|REQ_FUA)) != 0;
+	s->iop.flush_journal	= (bio->bi_rw & (REQ_FLUSH|REQ_FUA)) != 0;
 	s->recoverable		= 1;
 	s->start_time		= jiffies;
 	do_bio_hook(s);
@@ -847,148 +999,20 @@ static void cached_dev_bio_complete(struct closure *cl)
 	cached_dev_put(dc);
 }
 
-unsigned bch_get_congested(struct cache_set *c)
-{
-	int i;
-	long rand;
-
-	if (!c->congested_read_threshold_us &&
-	    !c->congested_write_threshold_us)
-		return 0;
-
-	i = (local_clock_us() - c->congested_last_us) / 1024;
-	if (i < 0)
-		return 0;
-
-	i += atomic_read(&c->congested);
-	if (i >= 0)
-		return 0;
-
-	i += CONGESTED_MAX;
-
-	if (i > 0)
-		i = fract_exp_two(i, 6);
-
-	rand = get_random_int();
-	i -= bitmap_weight(&rand, BITS_PER_LONG);
-
-	return i > 0 ? i : 1;
-}
-
-static void add_sequential(struct task_struct *t)
-{
-	ewma_add(t->sequential_io_avg,
-		 t->sequential_io, 8, 0);
-
-	t->sequential_io = 0;
-}
-
-static struct hlist_head *iohash(struct cached_dev *dc, uint64_t k)
-{
-	return &dc->io_hash[hash_64(k, RECENT_IO_BITS)];
-}
-
-static bool check_should_bypass(struct cached_dev *dc, struct search *s)
-{
-	struct cache_set *c = s->c;
-	struct bio *bio = &s->bio.bio;
-	unsigned mode = cache_mode(dc, bio);
-	unsigned sectors, congested = bch_get_congested(c);
-
-	if (atomic_read(&dc->disk.detaching) ||
-	    c->gc_stats.in_use > CUTOFF_CACHE_ADD ||
-	    (bio->bi_rw & REQ_DISCARD))
-		goto skip;
-
-	if (mode == CACHE_MODE_NONE ||
-	    (mode == CACHE_MODE_WRITEAROUND &&
-	     (bio->bi_rw & REQ_WRITE)))
-		goto skip;
-
-	if (bio->bi_sector & (c->sb.block_size - 1) ||
-	    bio_sectors(bio) & (c->sb.block_size - 1)) {
-		pr_debug("skipping unaligned io");
-		goto skip;
-	}
-
-	if (!congested && !dc->sequential_cutoff)
-		goto rescale;
-
-	if (!congested &&
-	    mode == CACHE_MODE_WRITEBACK &&
-	    (bio->bi_rw & REQ_WRITE) &&
-	    (bio->bi_rw & REQ_SYNC))
-		goto rescale;
-
-	if (dc->sequential_merge) {
-		struct io *i;
-
-		spin_lock(&dc->io_lock);
-
-		hlist_for_each_entry(i, iohash(dc, bio->bi_sector), hash)
-			if (i->last == bio->bi_sector &&
-			    time_before(jiffies, i->jiffies))
-				goto found;
-
-		i = list_first_entry(&dc->io_lru, struct io, lru);
-
-		add_sequential(s->task);
-		i->sequential = 0;
-found:
-		if (i->sequential + bio->bi_size > i->sequential)
-			i->sequential	+= bio->bi_size;
-
-		i->last			 = bio_end_sector(bio);
-		i->jiffies		 = jiffies + msecs_to_jiffies(5000);
-		s->task->sequential_io	 = i->sequential;
-
-		hlist_del(&i->hash);
-		hlist_add_head(&i->hash, iohash(dc, i->last));
-		list_move_tail(&i->lru, &dc->io_lru);
-
-		spin_unlock(&dc->io_lock);
-	} else {
-		s->task->sequential_io = bio->bi_size;
-
-		add_sequential(s->task);
-	}
-
-	sectors = max(s->task->sequential_io,
-		      s->task->sequential_io_avg) >> 9;
-
-	if (dc->sequential_cutoff &&
-	    sectors >= dc->sequential_cutoff >> 9) {
-		trace_bcache_bypass_sequential(s->orig_bio);
-		goto skip;
-	}
-
-	if (congested && sectors >= congested) {
-		trace_bcache_bypass_congested(s->orig_bio);
-		goto skip;
-	}
-
-rescale:
-	bch_rescale_priorities(c, bio_sectors(bio));
-	return false;
-skip:
-	bch_mark_sectors_bypassed(s, bio_sectors(bio));
-	return true;
-}
-
 /* Process reads */
 
 static void cached_dev_cache_miss_done(struct closure *cl)
 {
 	struct search *s = container_of(cl, struct search, cl);
 
-	if (s->insert_collision)
-		bch_mark_cache_miss_collision(s);
+	if (s->iop.replace_collision)
+		bch_mark_cache_miss_collision(s->iop.c, s->d);
 
-	if (s->cache_bio) {
+	if (s->iop.bio) {
 		int i;
 		struct bio_vec *bv;
 
-		bio_for_each_segment_all(bv, s->cache_bio, i)
+		bio_for_each_segment_all(bv, s->iop.bio, i)
 			__free_page(bv->bv_page);
 	}
 
@@ -1006,7 +1030,7 @@ static void cached_dev_read_error(struct closure *cl)
 		/* Retry from the backing device: */
 		trace_bcache_read_retry(s->orig_bio);
 
-		s->error = 0;
+		s->iop.error = 0;
 		bv = s->bio.bio.bi_io_vec;
 		do_bio_hook(s);
 		s->bio.bio.bi_io_vec = bv;
@@ -1041,29 +1065,28 @@ static void cached_dev_read_done(struct closure *cl)
 	 * to the buffers the original bio pointed to:
 	 */
 
-	if (s->cache_bio) {
-		bio_reset(s->cache_bio);
-		s->cache_bio->bi_sector =
-			s->cache_miss->bi_sector;
-		s->cache_bio->bi_bdev = s->cache_miss->bi_bdev;
-		s->cache_bio->bi_size = s->cache_bio_sectors << 9;
-		bch_bio_map(s->cache_bio, NULL);
+	if (s->iop.bio) {
+		bio_reset(s->iop.bio);
+		s->iop.bio->bi_sector = s->cache_miss->bi_sector;
+		s->iop.bio->bi_bdev = s->cache_miss->bi_bdev;
+		s->iop.bio->bi_size = s->insert_bio_sectors << 9;
+		bch_bio_map(s->iop.bio, NULL);
 
-		bio_copy_data(s->cache_miss, s->cache_bio);
+		bio_copy_data(s->cache_miss, s->iop.bio);
 
 		bio_put(s->cache_miss);
 		s->cache_miss = NULL;
 	}
 
-	if (verify(dc, &s->bio.bio) && s->recoverable)
-		bch_data_verify(s);
+	if (verify(dc, &s->bio.bio) && s->recoverable && !s->unaligned_bvec)
+		bch_data_verify(dc, s->orig_bio);
 
 	bio_complete(s);
 
-	if (s->cache_bio &&
-	    !test_bit(CACHE_SET_STOPPING, &s->c->flags)) {
-		BUG_ON(!s->replace);
-		closure_call(&s->btree, bch_data_insert, NULL, cl);
+	if (s->iop.bio &&
+	    !test_bit(CACHE_SET_STOPPING, &s->iop.c->flags)) {
+		BUG_ON(!s->iop.replace);
+		closure_call(&s->iop.cl, bch_data_insert, NULL, cl);
 	}
 
 	continue_at(cl, cached_dev_cache_miss_done, NULL);
@@ -1074,12 +1097,13 @@ static void cached_dev_read_done_bh(struct closure *cl)
 	struct search *s = container_of(cl, struct search, cl);
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 
-	bch_mark_cache_accounting(s, !s->cache_miss, s->bypass);
-	trace_bcache_read(s->orig_bio, !s->cache_miss, s->bypass);
+	bch_mark_cache_accounting(s->iop.c, s->d,
+				  !s->cache_miss, s->iop.bypass);
+	trace_bcache_read(s->orig_bio, !s->cache_miss, s->iop.bypass);
 
-	if (s->error)
+	if (s->iop.error)
 		continue_at_nobarrier(cl, cached_dev_read_error, bcache_wq);
-	else if (s->cache_bio || verify(dc, &s->bio.bio))
+	else if (s->iop.bio || verify(dc, &s->bio.bio))
 		continue_at_nobarrier(cl, cached_dev_read_done, bcache_wq);
 	else
 		continue_at_nobarrier(cl, cached_dev_bio_complete, NULL);
@@ -1093,7 +1117,7 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
 	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 	struct bio *miss, *cache_bio;
 
-	if (s->cache_miss || s->bypass) {
+	if (s->cache_miss || s->iop.bypass) {
 		miss = bch_bio_split(bio, sectors, GFP_NOIO, s->d->bio_split);
 		ret = miss == bio ? MAP_DONE : MAP_CONTINUE;
 		goto out_submit;
@@ -1101,20 +1125,21 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
 
 	if (!(bio->bi_rw & REQ_RAHEAD) &&
 	    !(bio->bi_rw & REQ_META) &&
-	    s->c->gc_stats.in_use < CUTOFF_CACHE_READA)
+	    s->iop.c->gc_stats.in_use < CUTOFF_CACHE_READA)
 		reada = min_t(sector_t, dc->readahead >> 9,
 			      bdev_sectors(bio->bi_bdev) - bio_end_sector(bio));
 
-	s->cache_bio_sectors = min(sectors, bio_sectors(bio) + reada);
+	s->insert_bio_sectors = min(sectors, bio_sectors(bio) + reada);
 
-	s->replace_key = KEY(s->inode, bio->bi_sector +
-			     s->cache_bio_sectors, s->cache_bio_sectors);
+	s->iop.replace_key = KEY(s->iop.inode,
+				 bio->bi_sector + s->insert_bio_sectors,
+				 s->insert_bio_sectors);
 
-	ret = bch_btree_insert_check_key(b, &s->op, &s->replace_key);
+	ret = bch_btree_insert_check_key(b, &s->op, &s->iop.replace_key);
 	if (ret)
 		return ret;
 
-	s->replace = true;
+	s->iop.replace = true;
 
 	miss = bch_bio_split(bio, sectors, GFP_NOIO, s->d->bio_split);
 
@@ -1122,14 +1147,14 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
 	ret = miss == bio ? MAP_DONE : -EINTR;
 
 	cache_bio = bio_alloc_bioset(GFP_NOWAIT,
-			DIV_ROUND_UP(s->cache_bio_sectors, PAGE_SECTORS),
+			DIV_ROUND_UP(s->insert_bio_sectors, PAGE_SECTORS),
 			dc->disk.bio_split);
 	if (!cache_bio)
 		goto out_submit;
 
 	cache_bio->bi_sector	= miss->bi_sector;
 	cache_bio->bi_bdev	= miss->bi_bdev;
-	cache_bio->bi_size	= s->cache_bio_sectors << 9;
+	cache_bio->bi_size	= s->insert_bio_sectors << 9;
 
 	cache_bio->bi_end_io	= request_endio;
 	cache_bio->bi_private	= &s->cl;
@@ -1138,8 +1163,11 @@ static int cached_dev_cache_miss(struct btree *b, struct search *s,
 	if (bio_alloc_pages(cache_bio, __GFP_NOWARN|GFP_NOIO))
 		goto out_put;
 
+	if (reada)
+		bch_mark_cache_readahead(s->iop.c, s->d);
+
 	s->cache_miss	= miss;
-	s->cache_bio = cache_bio;
+	s->iop.bio	= cache_bio;
 	bio_get(cache_bio);
 	closure_bio_submit(cache_bio, &s->cl, s->d);
 
@@ -1157,7 +1185,7 @@ static void cached_dev_read(struct cached_dev *dc, struct search *s)
 {
 	struct closure *cl = &s->cl;
 
-	closure_call(&s->btree, cache_lookup, NULL, cl);
+	closure_call(&s->iop.cl, cache_lookup, NULL, cl);
 	continue_at(cl, cached_dev_read_done_bh, NULL);
 }
 
@@ -1179,7 +1207,7 @@ static void cached_dev_write(struct cached_dev *dc, struct search *s)
 	struct bkey start = KEY(dc->disk.id, bio->bi_sector, 0);
 	struct bkey end = KEY(dc->disk.id, bio_end_sector(bio), 0);
 
-	bch_keybuf_check_overlapping(&s->c->moving_gc_keys, &start, &end);
+	bch_keybuf_check_overlapping(&s->iop.c->moving_gc_keys, &start, &end);
 
 	down_read_non_owner(&dc->writeback_lock);
 	if (bch_keybuf_check_overlapping(&dc->writeback_keys, &start, &end)) {
@@ -1187,8 +1215,8 @@ static void cached_dev_write(struct cached_dev *dc, struct search *s)
 		 * We overlap with some dirty data undergoing background
 		 * writeback, force this write to writeback
 		 */
-		s->bypass	= false;
-		s->writeback	= true;
+		s->iop.bypass = false;
+		s->iop.writeback = true;
 	}
 
 	/*
@@ -1199,27 +1227,25 @@ static void cached_dev_write(struct cached_dev *dc, struct search *s)
 	 * so we still want to call it.
 	 */
 	if (bio->bi_rw & REQ_DISCARD)
-		s->bypass = true;
+		s->iop.bypass = true;
 
 	if (should_writeback(dc, s->orig_bio,
 			     cache_mode(dc, bio),
-			     s->bypass)) {
-		s->bypass = false;
-		s->writeback = true;
+			     s->iop.bypass)) {
+		s->iop.bypass = false;
+		s->iop.writeback = true;
 	}
 
-	trace_bcache_write(s->orig_bio, s->writeback, s->bypass);
-
-	if (s->bypass) {
-		s->cache_bio = s->orig_bio;
-		bio_get(s->cache_bio);
+	if (s->iop.bypass) {
+		s->iop.bio = s->orig_bio;
+		bio_get(s->iop.bio);
 
 		if (!(bio->bi_rw & REQ_DISCARD) ||
 		    blk_queue_discard(bdev_get_queue(dc->bdev)))
 			closure_bio_submit(bio, cl, s->d);
-	} else if (s->writeback) {
+	} else if (s->iop.writeback) {
 		bch_writeback_add(dc);
-		s->cache_bio = bio;
+		s->iop.bio = bio;
 
 		if (bio->bi_rw & REQ_FLUSH) {
 			/* Also need to send a flush to the backing device */
@@ -1234,13 +1260,13 @@ static void cached_dev_write(struct cached_dev *dc, struct search *s)
 			closure_bio_submit(flush, cl, s->d);
 		}
 	} else {
-		s->cache_bio = bio_clone_bioset(bio, GFP_NOIO,
-						dc->disk.bio_split);
+		s->iop.bio = bio_clone_bioset(bio, GFP_NOIO,
+					      dc->disk.bio_split);
 
 		closure_bio_submit(bio, cl, s->d);
 	}
 
-	closure_call(&s->btree, bch_data_insert, NULL, cl);
+	closure_call(&s->iop.cl, bch_data_insert, NULL, cl);
 	continue_at(cl, cached_dev_write_complete, NULL);
 }
 
@@ -1249,8 +1275,8 @@ static void cached_dev_nodata(struct closure *cl)
 	struct search *s = container_of(cl, struct search, cl);
 	struct bio *bio = &s->bio.bio;
 
-	if (s->flush_journal)
-		bch_journal_meta(s->c, cl);
+	if (s->iop.flush_journal)
+		bch_journal_meta(s->iop.c, cl);
 
 	/* If it's a flush, we send the flush to the backing device too */
 	closure_bio_submit(bio, cl, s->d);
@@ -1277,7 +1303,7 @@ static void cached_dev_make_request(struct request_queue *q, struct bio *bio)
 
 	if (cached_dev_get(dc)) {
 		s = search_alloc(bio, d);
-		trace_bcache_request_start(s, bio);
+		trace_bcache_request_start(s->d, bio);
 
 		if (!bio->bi_size) {
 			/*
@@ -1288,7 +1314,7 @@ static void cached_dev_make_request(struct request_queue *q, struct bio *bio)
 					      cached_dev_nodata,
 					      bcache_wq);
 		} else {
-			s->bypass = check_should_bypass(dc, s);
+			s->iop.bypass = check_should_bypass(dc, bio);
 
 			if (rw)
 				cached_dev_write(dc, s);
@@ -1378,8 +1404,8 @@ static void flash_dev_nodata(struct closure *cl)
 {
 	struct search *s = container_of(cl, struct search, cl);
 
-	if (s->flush_journal)
-		bch_journal_meta(s->c, cl);
+	if (s->iop.flush_journal)
+		bch_journal_meta(s->iop.c, cl);
 
 	continue_at(cl, search_free, NULL);
 }
@@ -1400,7 +1426,7 @@ static void flash_dev_make_request(struct request_queue *q, struct bio *bio)
 	cl = &s->cl;
 	bio = &s->bio.bio;
 
-	trace_bcache_request_start(s, bio);
+	trace_bcache_request_start(s->d, bio);
 
 	if (!bio->bi_size) {
 		/*
@@ -1411,17 +1437,17 @@ static void flash_dev_make_request(struct request_queue *q, struct bio *bio)
 				      flash_dev_nodata,
 				      bcache_wq);
 	} else if (rw) {
-		bch_keybuf_check_overlapping(&s->c->moving_gc_keys,
+		bch_keybuf_check_overlapping(&s->iop.c->moving_gc_keys,
 					&KEY(d->id, bio->bi_sector, 0),
 					&KEY(d->id, bio_end_sector(bio), 0));
 
-		s->bypass	= (bio->bi_rw & REQ_DISCARD) != 0;
-		s->writeback	= true;
-		s->cache_bio	= bio;
+		s->iop.bypass		= (bio->bi_rw & REQ_DISCARD) != 0;
+		s->iop.writeback	= true;
+		s->iop.bio		= bio;
 
-		closure_call(&s->btree, bch_data_insert, NULL, cl);
+		closure_call(&s->iop.cl, bch_data_insert, NULL, cl);
 	} else {
-		closure_call(&s->btree, cache_lookup, NULL, cl);
+		closure_call(&s->iop.cl, cache_lookup, NULL, cl);
 	}
 
 	continue_at(cl, search_free, NULL);
diff --git a/drivers/md/bcache/request.h b/drivers/md/bcache/request.h
index f0e930b4ca89..54d7de27356f 100644
--- a/drivers/md/bcache/request.h
+++ b/drivers/md/bcache/request.h
@@ -3,46 +3,25 @@
 
 #include <linux/cgroup.h>
 
-struct search {
-	/* Stack frame for bio_complete */
+struct data_insert_op {
 	struct closure		cl;
-	struct closure		btree;
-
-	struct bcache_device	*d;
 	struct cache_set	*c;
 	struct task_struct	*task;
-
-	struct bbio		bio;
-	struct bio		*orig_bio;
-	struct bio		*cache_miss;
-
-	/* Bio to be inserted into the cache */
-	struct bio		*cache_bio;
-	unsigned		cache_bio_sectors;
+	struct bio		*bio;
 
 	unsigned		inode;
+	uint16_t		write_prio;
+	short			error;
 
-	unsigned		recoverable:1;
-	unsigned		unaligned_bvec:1;
-
-	unsigned		write:1;
-	unsigned		writeback:1;
-
-	unsigned		csum:1;
 	unsigned		bypass:1;
+	unsigned		writeback:1;
 	unsigned		flush_journal:1;
+	unsigned		csum:1;
 
-	unsigned		insert_data_done:1;
 	unsigned		replace:1;
-	unsigned		insert_collision:1;
-
-	uint16_t		write_prio;
-
-	/* IO error returned to s->bio */
-	short			error;
-	unsigned long		start_time;
+	unsigned		replace_collision:1;
 
-	struct btree_op		op;
+	unsigned		insert_data_done:1;
 
 	/* Anything past this point won't get zeroed in search_alloc() */
 	struct keylist		insert_keys;
diff --git a/drivers/md/bcache/stats.c b/drivers/md/bcache/stats.c
index ea77263cf7ef..84d0782f702e 100644
--- a/drivers/md/bcache/stats.c
+++ b/drivers/md/bcache/stats.c
@@ -7,7 +7,6 @@
 #include "bcache.h"
 #include "stats.h"
 #include "btree.h"
-#include "request.h"
 #include "sysfs.h"
 
 /*
@@ -196,35 +195,36 @@ static void mark_cache_stats(struct cache_stat_collector *stats,
 			atomic_inc(&stats->cache_bypass_misses);
 }
 
-void bch_mark_cache_accounting(struct search *s, bool hit, bool bypass)
+void bch_mark_cache_accounting(struct cache_set *c, struct bcache_device *d,
+			       bool hit, bool bypass)
 {
-	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
+	struct cached_dev *dc = container_of(d, struct cached_dev, disk);
 	mark_cache_stats(&dc->accounting.collector, hit, bypass);
-	mark_cache_stats(&s->c->accounting.collector, hit, bypass);
+	mark_cache_stats(&c->accounting.collector, hit, bypass);
 #ifdef CONFIG_CGROUP_BCACHE
 	mark_cache_stats(&(bch_bio_to_cgroup(s->orig_bio)->stats), hit, bypass);
 #endif
 }
 
-void bch_mark_cache_readahead(struct search *s)
+void bch_mark_cache_readahead(struct cache_set *c, struct bcache_device *d)
 {
-	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
+	struct cached_dev *dc = container_of(d, struct cached_dev, disk);
 	atomic_inc(&dc->accounting.collector.cache_readaheads);
-	atomic_inc(&s->c->accounting.collector.cache_readaheads);
+	atomic_inc(&c->accounting.collector.cache_readaheads);
 }
 
-void bch_mark_cache_miss_collision(struct search *s)
+void bch_mark_cache_miss_collision(struct cache_set *c, struct bcache_device *d)
 {
-	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
+	struct cached_dev *dc = container_of(d, struct cached_dev, disk);
 	atomic_inc(&dc->accounting.collector.cache_miss_collisions);
-	atomic_inc(&s->c->accounting.collector.cache_miss_collisions);
+	atomic_inc(&c->accounting.collector.cache_miss_collisions);
 }
 
-void bch_mark_sectors_bypassed(struct search *s, int sectors)
+void bch_mark_sectors_bypassed(struct cache_set *c, struct cached_dev *dc,
+			       int sectors)
 {
-	struct cached_dev *dc = container_of(s->d, struct cached_dev, disk);
 	atomic_add(sectors, &dc->accounting.collector.sectors_bypassed);
-	atomic_add(sectors, &s->c->accounting.collector.sectors_bypassed);
+	atomic_add(sectors, &c->accounting.collector.sectors_bypassed);
 }
 
 void bch_cache_accounting_init(struct cache_accounting *acc,
diff --git a/drivers/md/bcache/stats.h b/drivers/md/bcache/stats.h
index c7c7a8fd29fe..adbff141c887 100644
--- a/drivers/md/bcache/stats.h
+++ b/drivers/md/bcache/stats.h
@@ -38,7 +38,9 @@ struct cache_accounting {
 	struct cache_stats day;
 };
 
-struct search;
+struct cache_set;
+struct cached_dev;
+struct bcache_device;
 
 void bch_cache_accounting_init(struct cache_accounting *acc,
 			       struct closure *parent);
@@ -50,9 +52,10 @@ void bch_cache_accounting_clear(struct cache_accounting *acc);
 
 void bch_cache_accounting_destroy(struct cache_accounting *acc);
 
-void bch_mark_cache_accounting(struct search *s, bool hit, bool bypass);
-void bch_mark_cache_readahead(struct search *s);
-void bch_mark_cache_miss_collision(struct search *s);
-void bch_mark_sectors_bypassed(struct search *s, int sectors);
+void bch_mark_cache_accounting(struct cache_set *, struct bcache_device *,
+			       bool, bool);
+void bch_mark_cache_readahead(struct cache_set *, struct bcache_device *);
+void bch_mark_cache_miss_collision(struct cache_set *, struct bcache_device *);
+void bch_mark_sectors_bypassed(struct cache_set *, struct cached_dev *, int);
 
 #endif /* _BCACHE_STATS_H_ */
diff --git a/drivers/md/bcache/trace.c b/drivers/md/bcache/trace.c
index f7b6c197f90f..adbc3df17a80 100644
--- a/drivers/md/bcache/trace.c
+++ b/drivers/md/bcache/trace.c
@@ -1,6 +1,5 @@
 #include "bcache.h"
 #include "btree.h"
-#include "request.h"
 
 #include <linux/blktrace_api.h>
 #include <linux/module.h>
diff --git a/include/trace/events/bcache.h b/include/trace/events/bcache.h
index 5ebda976ea93..32c89b33c391 100644
--- a/include/trace/events/bcache.h
+++ b/include/trace/events/bcache.h
@@ -6,11 +6,9 @@
 
 #include <linux/tracepoint.h>
 
-struct search;
-
 DECLARE_EVENT_CLASS(bcache_request,
-	TP_PROTO(struct search *s, struct bio *bio),
-	TP_ARGS(s, bio),
+	TP_PROTO(struct bcache_device *d, struct bio *bio),
+	TP_ARGS(d, bio),
 
 	TP_STRUCT__entry(
 		__field(dev_t,		dev			)
@@ -24,8 +22,8 @@ DECLARE_EVENT_CLASS(bcache_request,
 
 	TP_fast_assign(
 		__entry->dev		= bio->bi_bdev->bd_dev;
-		__entry->orig_major	= s->d->disk->major;
-		__entry->orig_minor	= s->d->disk->first_minor;
+		__entry->orig_major	= d->disk->major;
+		__entry->orig_minor	= d->disk->first_minor;
 		__entry->sector		= bio->bi_sector;
 		__entry->orig_sector	= bio->bi_sector - 16;
 		__entry->nr_sector	= bio->bi_size >> 9;
@@ -79,13 +77,13 @@ DECLARE_EVENT_CLASS(btree_node,
 /* request.c */
 
 DEFINE_EVENT(bcache_request, bcache_request_start,
-	TP_PROTO(struct search *s, struct bio *bio),
-	TP_ARGS(s, bio)
+	TP_PROTO(struct bcache_device *d, struct bio *bio),
+	TP_ARGS(d, bio)
 );
 
 DEFINE_EVENT(bcache_request, bcache_request_end,
-	TP_PROTO(struct search *s, struct bio *bio),
-	TP_ARGS(s, bio)
+	TP_PROTO(struct bcache_device *d, struct bio *bio),
+	TP_ARGS(d, bio)
 );
 
 DECLARE_EVENT_CLASS(bcache_bio,
-- 
cgit 


From 2599b53b7b0ea6103d1661dca74d35480cb8fa1f Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 18:11:11 -0700
Subject: bcache: Move sector allocator to alloc.c

Just reorganizing things a bit.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/alloc.c   | 180 ++++++++++++++++++++++++++++++++++++++++++
 drivers/md/bcache/bcache.h  |   4 +
 drivers/md/bcache/request.c | 186 +-------------------------------------------
 drivers/md/bcache/request.h |   5 +-
 4 files changed, 189 insertions(+), 186 deletions(-)

diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c
index b9bd5866055d..4970ddc6a7f6 100644
--- a/drivers/md/bcache/alloc.c
+++ b/drivers/md/bcache/alloc.c
@@ -487,8 +487,188 @@ int bch_bucket_alloc_set(struct cache_set *c, unsigned watermark,
 	return ret;
 }
 
+/* Sector allocator */
+
+struct open_bucket {
+	struct list_head	list;
+	unsigned		last_write_point;
+	unsigned		sectors_free;
+	BKEY_PADDED(key);
+};
+
+/*
+ * We keep multiple buckets open for writes, and try to segregate different
+ * write streams for better cache utilization: first we look for a bucket where
+ * the last write to it was sequential with the current write, and failing that
+ * we look for a bucket that was last used by the same task.
+ *
+ * The ideas is if you've got multiple tasks pulling data into the cache at the
+ * same time, you'll get better cache utilization if you try to segregate their
+ * data and preserve locality.
+ *
+ * For example, say you've starting Firefox at the same time you're copying a
+ * bunch of files. Firefox will likely end up being fairly hot and stay in the
+ * cache awhile, but the data you copied might not be; if you wrote all that
+ * data to the same buckets it'd get invalidated at the same time.
+ *
+ * Both of those tasks will be doing fairly random IO so we can't rely on
+ * detecting sequential IO to segregate their data, but going off of the task
+ * should be a sane heuristic.
+ */
+static struct open_bucket *pick_data_bucket(struct cache_set *c,
+					    const struct bkey *search,
+					    unsigned write_point,
+					    struct bkey *alloc)
+{
+	struct open_bucket *ret, *ret_task = NULL;
+
+	list_for_each_entry_reverse(ret, &c->data_buckets, list)
+		if (!bkey_cmp(&ret->key, search))
+			goto found;
+		else if (ret->last_write_point == write_point)
+			ret_task = ret;
+
+	ret = ret_task ?: list_first_entry(&c->data_buckets,
+					   struct open_bucket, list);
+found:
+	if (!ret->sectors_free && KEY_PTRS(alloc)) {
+		ret->sectors_free = c->sb.bucket_size;
+		bkey_copy(&ret->key, alloc);
+		bkey_init(alloc);
+	}
+
+	if (!ret->sectors_free)
+		ret = NULL;
+
+	return ret;
+}
+
+/*
+ * Allocates some space in the cache to write to, and k to point to the newly
+ * allocated space, and updates KEY_SIZE(k) and KEY_OFFSET(k) (to point to the
+ * end of the newly allocated space).
+ *
+ * May allocate fewer sectors than @sectors, KEY_SIZE(k) indicates how many
+ * sectors were actually allocated.
+ *
+ * If s->writeback is true, will not fail.
+ */
+bool bch_alloc_sectors(struct cache_set *c, struct bkey *k, unsigned sectors,
+		       unsigned write_point, unsigned write_prio, bool wait)
+{
+	struct open_bucket *b;
+	BKEY_PADDED(key) alloc;
+	unsigned i;
+
+	/*
+	 * We might have to allocate a new bucket, which we can't do with a
+	 * spinlock held. So if we have to allocate, we drop the lock, allocate
+	 * and then retry. KEY_PTRS() indicates whether alloc points to
+	 * allocated bucket(s).
+	 */
+
+	bkey_init(&alloc.key);
+	spin_lock(&c->data_bucket_lock);
+
+	while (!(b = pick_data_bucket(c, k, write_point, &alloc.key))) {
+		unsigned watermark = write_prio
+			? WATERMARK_MOVINGGC
+			: WATERMARK_NONE;
+
+		spin_unlock(&c->data_bucket_lock);
+
+		if (bch_bucket_alloc_set(c, watermark, &alloc.key, 1, wait))
+			return false;
+
+		spin_lock(&c->data_bucket_lock);
+	}
+
+	/*
+	 * If we had to allocate, we might race and not need to allocate the
+	 * second time we call find_data_bucket(). If we allocated a bucket but
+	 * didn't use it, drop the refcount bch_bucket_alloc_set() took:
+	 */
+	if (KEY_PTRS(&alloc.key))
+		__bkey_put(c, &alloc.key);
+
+	for (i = 0; i < KEY_PTRS(&b->key); i++)
+		EBUG_ON(ptr_stale(c, &b->key, i));
+
+	/* Set up the pointer to the space we're allocating: */
+
+	for (i = 0; i < KEY_PTRS(&b->key); i++)
+		k->ptr[i] = b->key.ptr[i];
+
+	sectors = min(sectors, b->sectors_free);
+
+	SET_KEY_OFFSET(k, KEY_OFFSET(k) + sectors);
+	SET_KEY_SIZE(k, sectors);
+	SET_KEY_PTRS(k, KEY_PTRS(&b->key));
+
+	/*
+	 * Move b to the end of the lru, and keep track of what this bucket was
+	 * last used for:
+	 */
+	list_move_tail(&b->list, &c->data_buckets);
+	bkey_copy_key(&b->key, k);
+	b->last_write_point = write_point;
+
+	b->sectors_free	-= sectors;
+
+	for (i = 0; i < KEY_PTRS(&b->key); i++) {
+		SET_PTR_OFFSET(&b->key, i, PTR_OFFSET(&b->key, i) + sectors);
+
+		atomic_long_add(sectors,
+				&PTR_CACHE(c, &b->key, i)->sectors_written);
+	}
+
+	if (b->sectors_free < c->sb.block_size)
+		b->sectors_free = 0;
+
+	/*
+	 * k takes refcounts on the buckets it points to until it's inserted
+	 * into the btree, but if we're done with this bucket we just transfer
+	 * get_data_bucket()'s refcount.
+	 */
+	if (b->sectors_free)
+		for (i = 0; i < KEY_PTRS(&b->key); i++)
+			atomic_inc(&PTR_BUCKET(c, &b->key, i)->pin);
+
+	spin_unlock(&c->data_bucket_lock);
+	return true;
+}
+
 /* Init */
 
+void bch_open_buckets_free(struct cache_set *c)
+{
+	struct open_bucket *b;
+
+	while (!list_empty(&c->data_buckets)) {
+		b = list_first_entry(&c->data_buckets,
+				     struct open_bucket, list);
+		list_del(&b->list);
+		kfree(b);
+	}
+}
+
+int bch_open_buckets_alloc(struct cache_set *c)
+{
+	int i;
+
+	spin_lock_init(&c->data_bucket_lock);
+
+	for (i = 0; i < 6; i++) {
+		struct open_bucket *b = kzalloc(sizeof(*b), GFP_KERNEL);
+		if (!b)
+			return -ENOMEM;
+
+		list_add(&b->list, &c->data_buckets);
+	}
+
+	return 0;
+}
+
 int bch_cache_allocator_start(struct cache *ca)
 {
 	struct task_struct *k = kthread_run(bch_allocator_thread,
diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index 20fe96c121d9..e32f6fd91755 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -1170,6 +1170,8 @@ int __bch_bucket_alloc_set(struct cache_set *, unsigned,
 			   struct bkey *, int, bool);
 int bch_bucket_alloc_set(struct cache_set *, unsigned,
 			 struct bkey *, int, bool);
+bool bch_alloc_sectors(struct cache_set *, struct bkey *, unsigned,
+		       unsigned, unsigned, bool);
 
 __printf(2, 3)
 bool bch_cache_set_error(struct cache_set *, const char *, ...);
@@ -1210,6 +1212,8 @@ struct cache_set *bch_cache_set_alloc(struct cache_sb *);
 void bch_btree_cache_free(struct cache_set *);
 int bch_btree_cache_alloc(struct cache_set *);
 void bch_moving_init_cache_set(struct cache_set *);
+int bch_open_buckets_alloc(struct cache_set *);
+void bch_open_buckets_free(struct cache_set *);
 
 int bch_cache_allocator_start(struct cache *ca);
 int bch_cache_allocator_init(struct cache *ca);
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 05c7c216f65e..cf7850a7592c 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -255,186 +255,6 @@ static void bch_data_insert_keys(struct closure *cl)
 	closure_return(cl);
 }
 
-struct open_bucket {
-	struct list_head	list;
-	struct task_struct	*last;
-	unsigned		sectors_free;
-	BKEY_PADDED(key);
-};
-
-void bch_open_buckets_free(struct cache_set *c)
-{
-	struct open_bucket *b;
-
-	while (!list_empty(&c->data_buckets)) {
-		b = list_first_entry(&c->data_buckets,
-				     struct open_bucket, list);
-		list_del(&b->list);
-		kfree(b);
-	}
-}
-
-int bch_open_buckets_alloc(struct cache_set *c)
-{
-	int i;
-
-	spin_lock_init(&c->data_bucket_lock);
-
-	for (i = 0; i < 6; i++) {
-		struct open_bucket *b = kzalloc(sizeof(*b), GFP_KERNEL);
-		if (!b)
-			return -ENOMEM;
-
-		list_add(&b->list, &c->data_buckets);
-	}
-
-	return 0;
-}
-
-/*
- * We keep multiple buckets open for writes, and try to segregate different
- * write streams for better cache utilization: first we look for a bucket where
- * the last write to it was sequential with the current write, and failing that
- * we look for a bucket that was last used by the same task.
- *
- * The ideas is if you've got multiple tasks pulling data into the cache at the
- * same time, you'll get better cache utilization if you try to segregate their
- * data and preserve locality.
- *
- * For example, say you've starting Firefox at the same time you're copying a
- * bunch of files. Firefox will likely end up being fairly hot and stay in the
- * cache awhile, but the data you copied might not be; if you wrote all that
- * data to the same buckets it'd get invalidated at the same time.
- *
- * Both of those tasks will be doing fairly random IO so we can't rely on
- * detecting sequential IO to segregate their data, but going off of the task
- * should be a sane heuristic.
- */
-static struct open_bucket *pick_data_bucket(struct cache_set *c,
-					    const struct bkey *search,
-					    struct task_struct *task,
-					    struct bkey *alloc)
-{
-	struct open_bucket *ret, *ret_task = NULL;
-
-	list_for_each_entry_reverse(ret, &c->data_buckets, list)
-		if (!bkey_cmp(&ret->key, search))
-			goto found;
-		else if (ret->last == task)
-			ret_task = ret;
-
-	ret = ret_task ?: list_first_entry(&c->data_buckets,
-					   struct open_bucket, list);
-found:
-	if (!ret->sectors_free && KEY_PTRS(alloc)) {
-		ret->sectors_free = c->sb.bucket_size;
-		bkey_copy(&ret->key, alloc);
-		bkey_init(alloc);
-	}
-
-	if (!ret->sectors_free)
-		ret = NULL;
-
-	return ret;
-}
-
-/*
- * Allocates some space in the cache to write to, and k to point to the newly
- * allocated space, and updates KEY_SIZE(k) and KEY_OFFSET(k) (to point to the
- * end of the newly allocated space).
- *
- * May allocate fewer sectors than @sectors, KEY_SIZE(k) indicates how many
- * sectors were actually allocated.
- *
- * If s->writeback is true, will not fail.
- */
-static bool bch_alloc_sectors(struct data_insert_op *op,
-			      struct bkey *k, unsigned sectors)
-{
-	struct cache_set *c = op->c;
-	struct open_bucket *b;
-	BKEY_PADDED(key) alloc;
-	unsigned i;
-
-	/*
-	 * We might have to allocate a new bucket, which we can't do with a
-	 * spinlock held. So if we have to allocate, we drop the lock, allocate
-	 * and then retry. KEY_PTRS() indicates whether alloc points to
-	 * allocated bucket(s).
-	 */
-
-	bkey_init(&alloc.key);
-	spin_lock(&c->data_bucket_lock);
-
-	while (!(b = pick_data_bucket(c, k, op->task, &alloc.key))) {
-		unsigned watermark = op->write_prio
-			? WATERMARK_MOVINGGC
-			: WATERMARK_NONE;
-
-		spin_unlock(&c->data_bucket_lock);
-
-		if (bch_bucket_alloc_set(c, watermark, &alloc.key,
-					 1, op->writeback))
-			return false;
-
-		spin_lock(&c->data_bucket_lock);
-	}
-
-	/*
-	 * If we had to allocate, we might race and not need to allocate the
-	 * second time we call find_data_bucket(). If we allocated a bucket but
-	 * didn't use it, drop the refcount bch_bucket_alloc_set() took:
-	 */
-	if (KEY_PTRS(&alloc.key))
-		__bkey_put(c, &alloc.key);
-
-	for (i = 0; i < KEY_PTRS(&b->key); i++)
-		EBUG_ON(ptr_stale(c, &b->key, i));
-
-	/* Set up the pointer to the space we're allocating: */
-
-	for (i = 0; i < KEY_PTRS(&b->key); i++)
-		k->ptr[i] = b->key.ptr[i];
-
-	sectors = min(sectors, b->sectors_free);
-
-	SET_KEY_OFFSET(k, KEY_OFFSET(k) + sectors);
-	SET_KEY_SIZE(k, sectors);
-	SET_KEY_PTRS(k, KEY_PTRS(&b->key));
-
-	/*
-	 * Move b to the end of the lru, and keep track of what this bucket was
-	 * last used for:
-	 */
-	list_move_tail(&b->list, &c->data_buckets);
-	bkey_copy_key(&b->key, k);
-	b->last = op->task;
-
-	b->sectors_free	-= sectors;
-
-	for (i = 0; i < KEY_PTRS(&b->key); i++) {
-		SET_PTR_OFFSET(&b->key, i, PTR_OFFSET(&b->key, i) + sectors);
-
-		atomic_long_add(sectors,
-				&PTR_CACHE(c, &b->key, i)->sectors_written);
-	}
-
-	if (b->sectors_free < c->sb.block_size)
-		b->sectors_free = 0;
-
-	/*
-	 * k takes refcounts on the buckets it points to until it's inserted
-	 * into the btree, but if we're done with this bucket we just transfer
-	 * get_data_bucket()'s refcount.
-	 */
-	if (b->sectors_free)
-		for (i = 0; i < KEY_PTRS(&b->key); i++)
-			atomic_inc(&PTR_BUCKET(c, &b->key, i)->pin);
-
-	spin_unlock(&c->data_bucket_lock);
-	return true;
-}
-
 static void bch_data_invalidate(struct closure *cl)
 {
 	struct data_insert_op *op = container_of(cl, struct data_insert_op, cl);
@@ -545,7 +365,9 @@ static void bch_data_insert_start(struct closure *cl)
 		SET_KEY_INODE(k, op->inode);
 		SET_KEY_OFFSET(k, bio->bi_sector);
 
-		if (!bch_alloc_sectors(op, k, bio_sectors(bio)))
+		if (!bch_alloc_sectors(op->c, k, bio_sectors(bio),
+				       op->write_point, op->write_prio,
+				       op->writeback))
 			goto err;
 
 		n = bch_bio_split(bio, KEY_SIZE(k), GFP_NOIO, split);
@@ -968,7 +790,7 @@ static struct search *search_alloc(struct bio *bio, struct bcache_device *d)
 	s->iop.c		= d->c;
 	s->d			= d;
 	s->op.lock		= -1;
-	s->iop.task		= current;
+	s->iop.write_point	= hash_long((unsigned long) current, 16);
 	s->orig_bio		= bio;
 	s->write		= (bio->bi_rw & REQ_WRITE) != 0;
 	s->iop.flush_journal	= (bio->bi_rw & (REQ_FLUSH|REQ_FUA)) != 0;
diff --git a/drivers/md/bcache/request.h b/drivers/md/bcache/request.h
index 54d7de27356f..2cd65bf073c2 100644
--- a/drivers/md/bcache/request.h
+++ b/drivers/md/bcache/request.h
@@ -6,10 +6,10 @@
 struct data_insert_op {
 	struct closure		cl;
 	struct cache_set	*c;
-	struct task_struct	*task;
 	struct bio		*bio;
 
 	unsigned		inode;
+	uint16_t		write_point;
 	uint16_t		write_prio;
 	short			error;
 
@@ -31,9 +31,6 @@ struct data_insert_op {
 unsigned bch_get_congested(struct cache_set *);
 void bch_data_insert(struct closure *cl);
 
-void bch_open_buckets_free(struct cache_set *);
-int bch_open_buckets_alloc(struct cache_set *);
-
 void bch_cached_dev_request_init(struct cached_dev *dc);
 void bch_flash_dev_request_init(struct bcache_device *d);
 
-- 
cgit 


From 81ab4190ac17df41686a37c97f701623276b652a Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Thu, 31 Oct 2013 15:46:42 -0700
Subject: bcache: Pull on disk data structures out into a separate header

Now, the on disk data structures are in a header that can be exported to
userspace - and having them all centralized is nice too.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bcache.h  | 244 +----------------------------
 drivers/md/bcache/bset.c    |   4 +-
 drivers/md/bcache/bset.h    |  31 ----
 drivers/md/bcache/btree.c   |   2 +-
 drivers/md/bcache/journal.c |   4 +-
 drivers/md/bcache/journal.h |  37 -----
 drivers/md/bcache/request.c |   9 +-
 drivers/md/bcache/super.c   |  13 +-
 drivers/md/bcache/util.h    |  10 --
 include/uapi/linux/bcache.h | 373 ++++++++++++++++++++++++++++++++++++++++++++
 10 files changed, 387 insertions(+), 340 deletions(-)
 create mode 100644 include/uapi/linux/bcache.h

diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index e32f6fd91755..045cb99f1ca6 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -177,6 +177,7 @@
 
 #define pr_fmt(fmt) "bcache: %s() " fmt "\n", __func__
 
+#include <linux/bcache.h>
 #include <linux/bio.h>
 #include <linux/kobject.h>
 #include <linux/list.h>
@@ -210,168 +211,6 @@ BITMASK(GC_MARK,	 struct bucket, gc_mark, 0, 2);
 #define GC_MARK_METADATA	2
 BITMASK(GC_SECTORS_USED, struct bucket, gc_mark, 2, 14);
 
-struct bkey {
-	uint64_t	high;
-	uint64_t	low;
-	uint64_t	ptr[];
-};
-
-/* Enough for a key with 6 pointers */
-#define BKEY_PAD		8
-
-#define BKEY_PADDED(key)					\
-	union { struct bkey key; uint64_t key ## _pad[BKEY_PAD]; }
-
-/* Version 0: Cache device
- * Version 1: Backing device
- * Version 2: Seed pointer into btree node checksum
- * Version 3: Cache device with new UUID format
- * Version 4: Backing device with data offset
- */
-#define BCACHE_SB_VERSION_CDEV			0
-#define BCACHE_SB_VERSION_BDEV			1
-#define BCACHE_SB_VERSION_CDEV_WITH_UUID	3
-#define BCACHE_SB_VERSION_BDEV_WITH_OFFSET	4
-#define BCACHE_SB_MAX_VERSION			4
-
-#define SB_SECTOR		8
-#define SB_SIZE			4096
-#define SB_LABEL_SIZE		32
-#define SB_JOURNAL_BUCKETS	256U
-/* SB_JOURNAL_BUCKETS must be divisible by BITS_PER_LONG */
-#define MAX_CACHES_PER_SET	8
-
-#define BDEV_DATA_START_DEFAULT	16	/* sectors */
-
-struct cache_sb {
-	uint64_t		csum;
-	uint64_t		offset;	/* sector where this sb was written */
-	uint64_t		version;
-
-	uint8_t			magic[16];
-
-	uint8_t			uuid[16];
-	union {
-		uint8_t		set_uuid[16];
-		uint64_t	set_magic;
-	};
-	uint8_t			label[SB_LABEL_SIZE];
-
-	uint64_t		flags;
-	uint64_t		seq;
-	uint64_t		pad[8];
-
-	union {
-	struct {
-		/* Cache devices */
-		uint64_t	nbuckets;	/* device size */
-
-		uint16_t	block_size;	/* sectors */
-		uint16_t	bucket_size;	/* sectors */
-
-		uint16_t	nr_in_set;
-		uint16_t	nr_this_dev;
-	};
-	struct {
-		/* Backing devices */
-		uint64_t	data_offset;
-
-		/*
-		 * block_size from the cache device section is still used by
-		 * backing devices, so don't add anything here until we fix
-		 * things to not need it for backing devices anymore
-		 */
-	};
-	};
-
-	uint32_t		last_mount;	/* time_t */
-
-	uint16_t		first_bucket;
-	union {
-		uint16_t	njournal_buckets;
-		uint16_t	keys;
-	};
-	uint64_t		d[SB_JOURNAL_BUCKETS];	/* journal buckets */
-};
-
-BITMASK(CACHE_SYNC,		struct cache_sb, flags, 0, 1);
-BITMASK(CACHE_DISCARD,		struct cache_sb, flags, 1, 1);
-BITMASK(CACHE_REPLACEMENT,	struct cache_sb, flags, 2, 3);
-#define CACHE_REPLACEMENT_LRU	0U
-#define CACHE_REPLACEMENT_FIFO	1U
-#define CACHE_REPLACEMENT_RANDOM 2U
-
-BITMASK(BDEV_CACHE_MODE,	struct cache_sb, flags, 0, 4);
-#define CACHE_MODE_WRITETHROUGH	0U
-#define CACHE_MODE_WRITEBACK	1U
-#define CACHE_MODE_WRITEAROUND	2U
-#define CACHE_MODE_NONE		3U
-BITMASK(BDEV_STATE,		struct cache_sb, flags, 61, 2);
-#define BDEV_STATE_NONE		0U
-#define BDEV_STATE_CLEAN	1U
-#define BDEV_STATE_DIRTY	2U
-#define BDEV_STATE_STALE	3U
-
-/* Version 1: Seed pointer into btree node checksum
- */
-#define BCACHE_BSET_VERSION	1
-
-/*
- * This is the on disk format for btree nodes - a btree node on disk is a list
- * of these; within each set the keys are sorted
- */
-struct bset {
-	uint64_t		csum;
-	uint64_t		magic;
-	uint64_t		seq;
-	uint32_t		version;
-	uint32_t		keys;
-
-	union {
-		struct bkey	start[0];
-		uint64_t	d[0];
-	};
-};
-
-/*
- * On disk format for priorities and gens - see super.c near prio_write() for
- * more.
- */
-struct prio_set {
-	uint64_t		csum;
-	uint64_t		magic;
-	uint64_t		seq;
-	uint32_t		version;
-	uint32_t		pad;
-
-	uint64_t		next_bucket;
-
-	struct bucket_disk {
-		uint16_t	prio;
-		uint8_t		gen;
-	} __attribute((packed)) data[];
-};
-
-struct uuid_entry {
-	union {
-		struct {
-			uint8_t		uuid[16];
-			uint8_t		label[32];
-			uint32_t	first_reg;
-			uint32_t	last_reg;
-			uint32_t	invalidated;
-
-			uint32_t	flags;
-			/* Size of flash only volumes */
-			uint64_t	sectors;
-		};
-
-		uint8_t	pad[128];
-	};
-};
-
-BITMASK(UUID_FLASH_ONLY,	struct uuid_entry, flags, 0, 1);
-
 #include "journal.h"
 #include "stats.h"
 struct search;
@@ -868,12 +707,6 @@ static inline bool key_merging_disabled(struct cache_set *c)
 #endif
 }
 
-static inline bool SB_IS_BDEV(const struct cache_sb *sb)
-{
-	return sb->version == BCACHE_SB_VERSION_BDEV
-		|| sb->version == BCACHE_SB_VERSION_BDEV_WITH_OFFSET;
-}
-
 struct bbio {
 	unsigned		submit_time_us;
 	union {
@@ -927,59 +760,6 @@ static inline unsigned local_clock_us(void)
 #define prio_buckets(c)					\
 	DIV_ROUND_UP((size_t) (c)->sb.nbuckets, prios_per_bucket(c))
 
-#define JSET_MAGIC		0x245235c1a3625032ULL
-#define PSET_MAGIC		0x6750e15f87337f91ULL
-#define BSET_MAGIC		0x90135c78b99e07f5ULL
-
-#define jset_magic(c)		((c)->sb.set_magic ^ JSET_MAGIC)
-#define pset_magic(c)		((c)->sb.set_magic ^ PSET_MAGIC)
-#define bset_magic(c)		((c)->sb.set_magic ^ BSET_MAGIC)
-
-/* Bkey fields: all units are in sectors */
-
-#define KEY_FIELD(name, field, offset, size)				\
-	BITMASK(name, struct bkey, field, offset, size)
-
-#define PTR_FIELD(name, offset, size)					\
-	static inline uint64_t name(const struct bkey *k, unsigned i)	\
-	{ return (k->ptr[i] >> offset) & ~(((uint64_t) ~0) << size); }	\
-									\
-	static inline void SET_##name(struct bkey *k, unsigned i, uint64_t v)\
-	{								\
-		k->ptr[i] &= ~(~((uint64_t) ~0 << size) << offset);	\
-		k->ptr[i] |= v << offset;				\
-	}
-
-KEY_FIELD(KEY_PTRS,	high, 60, 3)
-KEY_FIELD(HEADER_SIZE,	high, 58, 2)
-KEY_FIELD(KEY_CSUM,	high, 56, 2)
-KEY_FIELD(KEY_PINNED,	high, 55, 1)
-KEY_FIELD(KEY_DIRTY,	high, 36, 1)
-
-KEY_FIELD(KEY_SIZE,	high, 20, 16)
-KEY_FIELD(KEY_INODE,	high, 0,  20)
-
-/* Next time I change the on disk format, KEY_OFFSET() won't be 64 bits */
-
-static inline uint64_t KEY_OFFSET(const struct bkey *k)
-{
-	return k->low;
-}
-
-static inline void SET_KEY_OFFSET(struct bkey *k, uint64_t v)
-{
-	k->low = v;
-}
-
-PTR_FIELD(PTR_DEV,		51, 12)
-PTR_FIELD(PTR_OFFSET,		8,  43)
-PTR_FIELD(PTR_GEN,		0,  8)
-
-#define PTR_CHECK_DEV		((1 << 12) - 1)
-
-#define PTR(gen, offset, dev)						\
-	((((uint64_t) dev) << 51) | ((uint64_t) offset) << 8 | gen)
-
 static inline size_t sector_to_bucket(struct cache_set *c, sector_t s)
 {
 	return s >> c->bucket_bits;
@@ -1018,31 +798,11 @@ static inline struct bucket *PTR_BUCKET(struct cache_set *c,
 
 /* Btree key macros */
 
-/*
- * The high bit being set is a relic from when we used it to do binary
- * searches - it told you where a key started. It's not used anymore,
- * and can probably be safely dropped.
- */
-#define KEY(dev, sector, len)						\
-((struct bkey) {							\
-	.high = (1ULL << 63) | ((uint64_t) (len) << 20) | (dev),	\
-	.low = (sector)							\
-})
-
 static inline void bkey_init(struct bkey *k)
 {
-	*k = KEY(0, 0, 0);
+	*k = ZERO_KEY;
 }
 
-#define KEY_START(k)		(KEY_OFFSET(k) - KEY_SIZE(k))
-#define START_KEY(k)		KEY(KEY_INODE(k), KEY_START(k), 0)
-
-#define MAX_KEY_INODE		(~(~0 << 20))
-#define MAX_KEY_OFFSET		(((uint64_t) ~0) >> 1)
-#define MAX_KEY			KEY(MAX_KEY_INODE, MAX_KEY_OFFSET, 0)
-
-#define ZERO_KEY		KEY(0, 0, 0)
-
 /*
  * This is used for various on disk data structures - cache_sb, prio_set, bset,
  * jset: The checksum is _always_ the first 8 bytes of these structs
diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c
index f7b5525ddafa..7b8713c66050 100644
--- a/drivers/md/bcache/bset.c
+++ b/drivers/md/bcache/bset.c
@@ -684,7 +684,7 @@ void bch_bset_init_next(struct btree *b)
 	} else
 		get_random_bytes(&i->seq, sizeof(uint64_t));
 
-	i->magic	= bset_magic(b->c);
+	i->magic	= bset_magic(&b->c->sb);
 	i->version	= 0;
 	i->keys		= 0;
 
@@ -1034,7 +1034,7 @@ static void __btree_sort(struct btree *b, struct btree_iter *iter,
 		 * memcpy()
 		 */
 
-		out->magic	= bset_magic(b->c);
+		out->magic	= bset_magic(&b->c->sb);
 		out->seq	= b->sets[0].data->seq;
 		out->version	= b->sets[0].data->version;
 		swap(out, b->sets[0].data);
diff --git a/drivers/md/bcache/bset.h b/drivers/md/bcache/bset.h
index 8a9305685b7e..5cd90565dfe2 100644
--- a/drivers/md/bcache/bset.h
+++ b/drivers/md/bcache/bset.h
@@ -193,37 +193,6 @@ static __always_inline int64_t bkey_cmp(const struct bkey *l,
 		: (int64_t) KEY_OFFSET(l) - (int64_t) KEY_OFFSET(r);
 }
 
-static inline size_t bkey_u64s(const struct bkey *k)
-{
-	BUG_ON(KEY_CSUM(k) > 1);
-	return 2 + KEY_PTRS(k) + (KEY_CSUM(k) ? 1 : 0);
-}
-
-static inline size_t bkey_bytes(const struct bkey *k)
-{
-	return bkey_u64s(k) * sizeof(uint64_t);
-}
-
-static inline void bkey_copy(struct bkey *dest, const struct bkey *src)
-{
-	memcpy(dest, src, bkey_bytes(src));
-}
-
-static inline void bkey_copy_key(struct bkey *dest, const struct bkey *src)
-{
-	if (!src)
-		src = &KEY(0, 0, 0);
-
-	SET_KEY_INODE(dest, KEY_INODE(src));
-	SET_KEY_OFFSET(dest, KEY_OFFSET(src));
-}
-
-static inline struct bkey *bkey_next(const struct bkey *k)
-{
-	uint64_t *d = (void *) k;
-	return (struct bkey *) (d + bkey_u64s(k));
-}
-
 /* Keylists */
 
 struct keylist {
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index f5aa4adadf1d..aba787d954e5 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -231,7 +231,7 @@ static void bch_btree_node_read_done(struct btree *b)
 			goto err;
 
 		err = "bad magic";
-		if (i->magic != bset_magic(b->c))
+		if (i->magic != bset_magic(&b->c->sb))
 			goto err;
 
 		err = "bad checksum";
diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c
index 86de64a6bf26..ecdaa671bd50 100644
--- a/drivers/md/bcache/journal.c
+++ b/drivers/md/bcache/journal.c
@@ -74,7 +74,7 @@ reread:		left = ca->sb.bucket_size - offset;
 			struct list_head *where;
 			size_t blocks, bytes = set_bytes(j);
 
-			if (j->magic != jset_magic(ca->set))
+			if (j->magic != jset_magic(&ca->sb))
 				return ret;
 
 			if (bytes > left << 9)
@@ -596,7 +596,7 @@ static void journal_write_unlocked(struct closure *cl)
 	for_each_cache(ca, c, i)
 		w->data->prio_bucket[ca->sb.nr_this_dev] = ca->prio_buckets[0];
 
-	w->data->magic		= jset_magic(c);
+	w->data->magic		= jset_magic(&c->sb);
 	w->data->version	= BCACHE_JSET_VERSION;
 	w->data->last_seq	= last_seq(&c->journal);
 	w->data->csum		= csum_set(w->data);
diff --git a/drivers/md/bcache/journal.h b/drivers/md/bcache/journal.h
index 5e9edb9ef376..a6472fda94b2 100644
--- a/drivers/md/bcache/journal.h
+++ b/drivers/md/bcache/journal.h
@@ -75,43 +75,6 @@
  * nodes that are pinning the oldest journal entries first.
  */
 
-#define BCACHE_JSET_VERSION_UUIDv1	1
-/* Always latest UUID format */
-#define BCACHE_JSET_VERSION_UUID	1
-#define BCACHE_JSET_VERSION		1
-
-/*
- * On disk format for a journal entry:
- * seq is monotonically increasing; every journal entry has its own unique
- * sequence number.
- *
- * last_seq is the oldest journal entry that still has keys the btree hasn't
- * flushed to disk yet.
- *
- * version is for on disk format changes.
- */
-struct jset {
-	uint64_t		csum;
-	uint64_t		magic;
-	uint64_t		seq;
-	uint32_t		version;
-	uint32_t		keys;
-
-	uint64_t		last_seq;
-
-	BKEY_PADDED(uuid_bucket);
-	BKEY_PADDED(btree_root);
-	uint16_t		btree_level;
-	uint16_t		pad[3];
-
-	uint64_t		prio_bucket[MAX_CACHES_PER_SET];
-
-	union {
-		struct bkey	start[0];
-		uint64_t	d[0];
-	};
-};
-
 /*
  * Only used for holding the journal entries we read in btree_journal_read()
  * during cache_registration
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index cf7850a7592c..932300f18973 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -264,16 +264,17 @@ static void bch_data_invalidate(struct closure *cl)
 		 bio_sectors(bio), (uint64_t) bio->bi_sector);
 
 	while (bio_sectors(bio)) {
-		unsigned len = min(bio_sectors(bio), 1U << 14);
+		unsigned sectors = min(bio_sectors(bio),
+				       1U << (KEY_SIZE_BITS - 1));
 
 		if (bch_keylist_realloc(&op->insert_keys, 0, op->c))
 			goto out;
 
-		bio->bi_sector	+= len;
-		bio->bi_size	-= len << 9;
+		bio->bi_sector	+= sectors;
+		bio->bi_size	-= sectors << 9;
 
 		bch_keylist_add(&op->insert_keys,
-				&KEY(op->inode, bio->bi_sector, len));
+				&KEY(op->inode, bio->bi_sector, sectors));
 	}
 
 	op->insert_data_done = true;
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index a314c771263f..c67d19a8913d 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -45,15 +45,6 @@ const char * const bch_cache_modes[] = {
 	NULL
 };
 
-struct uuid_entry_v0 {
-	uint8_t		uuid[16];
-	uint8_t		label[32];
-	uint32_t	first_reg;
-	uint32_t	last_reg;
-	uint32_t	invalidated;
-	uint32_t	pad;
-};
-
 static struct kobject *bcache_kobj;
 struct mutex bch_register_lock;
 LIST_HEAD(bch_cache_sets);
@@ -562,7 +553,7 @@ void bch_prio_write(struct cache *ca)
 		}
 
 		p->next_bucket	= ca->prio_buckets[i + 1];
-		p->magic	= pset_magic(ca);
+		p->magic	= pset_magic(&ca->sb);
 		p->csum		= bch_crc64(&p->magic, bucket_bytes(ca) - 8);
 
 		bucket = bch_bucket_alloc(ca, WATERMARK_PRIO, true);
@@ -613,7 +604,7 @@ static void prio_read(struct cache *ca, uint64_t bucket)
 			if (p->csum != bch_crc64(&p->magic, bucket_bytes(ca) - 8))
 				pr_warn("bad csum reading priorities");
 
-			if (p->magic != pset_magic(ca))
+			if (p->magic != pset_magic(&ca->sb))
 				pr_warn("bad magic reading priorities");
 
 			bucket = p->next_bucket;
diff --git a/drivers/md/bcache/util.h b/drivers/md/bcache/util.h
index ea345c6896f4..38ae7a4ce928 100644
--- a/drivers/md/bcache/util.h
+++ b/drivers/md/bcache/util.h
@@ -27,16 +27,6 @@ struct closure;
 
 #endif
 
-#define BITMASK(name, type, field, offset, size)		\
-static inline uint64_t name(const type *k)			\
-{ return (k->field >> offset) & ~(((uint64_t) ~0) << size); }	\
-								\
-static inline void SET_##name(type *k, uint64_t v)		\
-{								\
-	k->field &= ~(~((uint64_t) ~0 << size) << offset);	\
-	k->field |= v << offset;				\
-}
-
 #define DECLARE_HEAP(type, name)					\
 	struct {							\
 		size_t size, used;					\
diff --git a/include/uapi/linux/bcache.h b/include/uapi/linux/bcache.h
new file mode 100644
index 000000000000..164a7e263988
--- /dev/null
+++ b/include/uapi/linux/bcache.h
@@ -0,0 +1,373 @@
+#ifndef _LINUX_BCACHE_H
+#define _LINUX_BCACHE_H
+
+/*
+ * Bcache on disk data structures
+ */
+
+#include <asm/types.h>
+
+#define BITMASK(name, type, field, offset, size)		\
+static inline __u64 name(const type *k)				\
+{ return (k->field >> offset) & ~(~0ULL << size); }		\
+								\
+static inline void SET_##name(type *k, __u64 v)			\
+{								\
+	k->field &= ~(~(~0ULL << size) << offset);		\
+	k->field |= (v & ~(~0ULL << size)) << offset;		\
+}
+
+/* Btree keys - all units are in sectors */
+
+struct bkey {
+	__u64	high;
+	__u64	low;
+	__u64	ptr[];
+};
+
+#define KEY_FIELD(name, field, offset, size)				\
+	BITMASK(name, struct bkey, field, offset, size)
+
+#define PTR_FIELD(name, offset, size)					\
+static inline __u64 name(const struct bkey *k, unsigned i)		\
+{ return (k->ptr[i] >> offset) & ~(~0ULL << size); }			\
+									\
+static inline void SET_##name(struct bkey *k, unsigned i, __u64 v)	\
+{									\
+	k->ptr[i] &= ~(~(~0ULL << size) << offset);			\
+	k->ptr[i] |= (v & ~(~0ULL << size)) << offset;			\
+}
+
+#define KEY_SIZE_BITS		16
+
+KEY_FIELD(KEY_PTRS,	high, 60, 3)
+KEY_FIELD(HEADER_SIZE,	high, 58, 2)
+KEY_FIELD(KEY_CSUM,	high, 56, 2)
+KEY_FIELD(KEY_PINNED,	high, 55, 1)
+KEY_FIELD(KEY_DIRTY,	high, 36, 1)
+
+KEY_FIELD(KEY_SIZE,	high, 20, KEY_SIZE_BITS)
+KEY_FIELD(KEY_INODE,	high, 0,  20)
+
+/* Next time I change the on disk format, KEY_OFFSET() won't be 64 bits */
+
+static inline __u64 KEY_OFFSET(const struct bkey *k)
+{
+	return k->low;
+}
+
+static inline void SET_KEY_OFFSET(struct bkey *k, __u64 v)
+{
+	k->low = v;
+}
+
+/*
+ * The high bit being set is a relic from when we used it to do binary
+ * searches - it told you where a key started. It's not used anymore,
+ * and can probably be safely dropped.
+ */
+#define KEY(inode, offset, size)					\
+((struct bkey) {							\
+	.high = (1ULL << 63) | ((__u64) (size) << 20) | (inode),	\
+	.low = (offset)							\
+})
+
+#define ZERO_KEY			KEY(0, 0, 0)
+
+#define MAX_KEY_INODE			(~(~0 << 20))
+#define MAX_KEY_OFFSET			(~0ULL >> 1)
+#define MAX_KEY				KEY(MAX_KEY_INODE, MAX_KEY_OFFSET, 0)
+
+#define KEY_START(k)			(KEY_OFFSET(k) - KEY_SIZE(k))
+#define START_KEY(k)			KEY(KEY_INODE(k), KEY_START(k), 0)
+
+#define PTR_DEV_BITS			12
+
+PTR_FIELD(PTR_DEV,			51, PTR_DEV_BITS)
+PTR_FIELD(PTR_OFFSET,			8,  43)
+PTR_FIELD(PTR_GEN,			0,  8)
+
+#define PTR_CHECK_DEV			((1 << PTR_DEV_BITS) - 1)
+
+#define PTR(gen, offset, dev)						\
+	((((__u64) dev) << 51) | ((__u64) offset) << 8 | gen)
+
+/* Bkey utility code */
+
+static inline unsigned long bkey_u64s(const struct bkey *k)
+{
+	return (sizeof(struct bkey) / sizeof(__u64)) + KEY_PTRS(k);
+}
+
+static inline unsigned long bkey_bytes(const struct bkey *k)
+{
+	return bkey_u64s(k) * sizeof(__u64);
+}
+
+#define bkey_copy(_dest, _src)	memcpy(_dest, _src, bkey_bytes(_src))
+
+static inline void bkey_copy_key(struct bkey *dest, const struct bkey *src)
+{
+	SET_KEY_INODE(dest, KEY_INODE(src));
+	SET_KEY_OFFSET(dest, KEY_OFFSET(src));
+}
+
+static inline struct bkey *bkey_next(const struct bkey *k)
+{
+	__u64 *d = (void *) k;
+	return (struct bkey *) (d + bkey_u64s(k));
+}
+
+static inline struct bkey *bkey_last(const struct bkey *k, unsigned nr_keys)
+{
+	__u64 *d = (void *) k;
+	return (struct bkey *) (d + nr_keys);
+}
+/* Enough for a key with 6 pointers */
+#define BKEY_PAD		8
+
+#define BKEY_PADDED(key)					\
+	union { struct bkey key; __u64 key ## _pad[BKEY_PAD]; }
+
+/* Superblock */
+
+/* Version 0: Cache device
+ * Version 1: Backing device
+ * Version 2: Seed pointer into btree node checksum
+ * Version 3: Cache device with new UUID format
+ * Version 4: Backing device with data offset
+ */
+#define BCACHE_SB_VERSION_CDEV		0
+#define BCACHE_SB_VERSION_BDEV		1
+#define BCACHE_SB_VERSION_CDEV_WITH_UUID 3
+#define BCACHE_SB_VERSION_BDEV_WITH_OFFSET 4
+#define BCACHE_SB_MAX_VERSION		4
+
+#define SB_SECTOR			8
+#define SB_SIZE				4096
+#define SB_LABEL_SIZE			32
+#define SB_JOURNAL_BUCKETS		256U
+/* SB_JOURNAL_BUCKETS must be divisible by BITS_PER_LONG */
+#define MAX_CACHES_PER_SET		8
+
+#define BDEV_DATA_START_DEFAULT		16	/* sectors */
+
+struct cache_sb {
+	__u64			csum;
+	__u64			offset;	/* sector where this sb was written */
+	__u64			version;
+
+	__u8			magic[16];
+
+	__u8			uuid[16];
+	union {
+		__u8		set_uuid[16];
+		__u64		set_magic;
+	};
+	__u8			label[SB_LABEL_SIZE];
+
+	__u64			flags;
+	__u64			seq;
+	__u64			pad[8];
+
+	union {
+	struct {
+		/* Cache devices */
+		__u64		nbuckets;	/* device size */
+
+		__u16		block_size;	/* sectors */
+		__u16		bucket_size;	/* sectors */
+
+		__u16		nr_in_set;
+		__u16		nr_this_dev;
+	};
+	struct {
+		/* Backing devices */
+		__u64		data_offset;
+
+		/*
+		 * block_size from the cache device section is still used by
+		 * backing devices, so don't add anything here until we fix
+		 * things to not need it for backing devices anymore
+		 */
+	};
+	};
+
+	__u32			last_mount;	/* time_t */
+
+	__u16			first_bucket;
+	union {
+		__u16		njournal_buckets;
+		__u16		keys;
+	};
+	__u64			d[SB_JOURNAL_BUCKETS];	/* journal buckets */
+};
+
+static inline _Bool SB_IS_BDEV(const struct cache_sb *sb)
+{
+	return sb->version == BCACHE_SB_VERSION_BDEV
+		|| sb->version == BCACHE_SB_VERSION_BDEV_WITH_OFFSET;
+}
+
+BITMASK(CACHE_SYNC,			struct cache_sb, flags, 0, 1);
+BITMASK(CACHE_DISCARD,			struct cache_sb, flags, 1, 1);
+BITMASK(CACHE_REPLACEMENT,		struct cache_sb, flags, 2, 3);
+#define CACHE_REPLACEMENT_LRU		0U
+#define CACHE_REPLACEMENT_FIFO		1U
+#define CACHE_REPLACEMENT_RANDOM	2U
+
+BITMASK(BDEV_CACHE_MODE,		struct cache_sb, flags, 0, 4);
+#define CACHE_MODE_WRITETHROUGH		0U
+#define CACHE_MODE_WRITEBACK		1U
+#define CACHE_MODE_WRITEAROUND		2U
+#define CACHE_MODE_NONE			3U
+BITMASK(BDEV_STATE,			struct cache_sb, flags, 61, 2);
+#define BDEV_STATE_NONE			0U
+#define BDEV_STATE_CLEAN		1U
+#define BDEV_STATE_DIRTY		2U
+#define BDEV_STATE_STALE		3U
+
+/*
+ * Magic numbers
+ *
+ * The various other data structures have their own magic numbers, which are
+ * xored with the first part of the cache set's UUID
+ */
+
+#define JSET_MAGIC			0x245235c1a3625032ULL
+#define PSET_MAGIC			0x6750e15f87337f91ULL
+#define BSET_MAGIC			0x90135c78b99e07f5ULL
+
+static inline __u64 jset_magic(struct cache_sb *sb)
+{
+	return sb->set_magic ^ JSET_MAGIC;
+}
+
+static inline __u64 pset_magic(struct cache_sb *sb)
+{
+	return sb->set_magic ^ PSET_MAGIC;
+}
+
+static inline __u64 bset_magic(struct cache_sb *sb)
+{
+	return sb->set_magic ^ BSET_MAGIC;
+}
+
+/*
+ * Journal
+ *
+ * On disk format for a journal entry:
+ * seq is monotonically increasing; every journal entry has its own unique
+ * sequence number.
+ *
+ * last_seq is the oldest journal entry that still has keys the btree hasn't
+ * flushed to disk yet.
+ *
+ * version is for on disk format changes.
+ */
+
+#define BCACHE_JSET_VERSION_UUIDv1	1
+#define BCACHE_JSET_VERSION_UUID	1	/* Always latest UUID format */
+#define BCACHE_JSET_VERSION		1
+
+struct jset {
+	__u64			csum;
+	__u64			magic;
+	__u64			seq;
+	__u32			version;
+	__u32			keys;
+
+	__u64			last_seq;
+
+	BKEY_PADDED(uuid_bucket);
+	BKEY_PADDED(btree_root);
+	__u16			btree_level;
+	__u16			pad[3];
+
+	__u64			prio_bucket[MAX_CACHES_PER_SET];
+
+	union {
+		struct bkey	start[0];
+		__u64		d[0];
+	};
+};
+
+/* Bucket prios/gens */
+
+struct prio_set {
+	__u64			csum;
+	__u64			magic;
+	__u64			seq;
+	__u32			version;
+	__u32			pad;
+
+	__u64			next_bucket;
+
+	struct bucket_disk {
+		__u16		prio;
+		__u8		gen;
+	} __attribute((packed)) data[];
+};
+
+/* UUIDS - per backing device/flash only volume metadata */
+
+struct uuid_entry {
+	union {
+		struct {
+			__u8	uuid[16];
+			__u8	label[32];
+			__u32	first_reg;
+			__u32	last_reg;
+			__u32	invalidated;
+
+			__u32	flags;
+			/* Size of flash only volumes */
+			__u64	sectors;
+		};
+
+		__u8		pad[128];
+	};
+};
+
+BITMASK(UUID_FLASH_ONLY,	struct uuid_entry, flags, 0, 1);
+
+/* Btree nodes */
+
+/* Version 1: Seed pointer into btree node checksum
+ */
+#define BCACHE_BSET_CSUM		1
+#define BCACHE_BSET_VERSION		1
+
+/*
+ * Btree nodes
+ *
+ * On disk a btree node is a list/log of these; within each set the keys are
+ * sorted
+ */
+struct bset {
+	__u64			csum;
+	__u64			magic;
+	__u64			seq;
+	__u32			version;
+	__u32			keys;
+
+	union {
+		struct bkey	start[0];
+		__u64		d[0];
+	};
+};
+
+/* OBSOLETE */
+
+/* UUIDS - per backing device/flash only volume metadata */
+
+struct uuid_entry_v0 {
+	__u8		uuid[16];
+	__u8		label[32];
+	__u32		first_reg;
+	__u32		last_reg;
+	__u32		invalidated;
+	__u32		pad;
+};
+
+#endif /* _LINUX_BCACHE_H */
-- 
cgit 


From e58ff155034791ed3a5563d24a50fae0a8c1617c Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 18:14:44 -0700
Subject: bcache: Fix bch_ptr_bad()

Previously, bch_ptr_bad() could return false when there was a pointer to
a nonexistant device... it only filtered out keys with PTR_CHECK_DEV
pointers.

This behaviour was intended for multiple cache device support; for that,
just because the device for one of the pointers has gone away doesn't
mean we want to filter out the rest of the pointers.

But we don't yet explicitly filter/check individual pointers, so without
that this behaviour was wrong - a corrupt bkey with a bad device pointer
could cause us to deref a bad pointer. Doh.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bset.c | 67 ++++++++++++++++++++++++------------------------
 1 file changed, 33 insertions(+), 34 deletions(-)

diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c
index 7b8713c66050..f32216c75948 100644
--- a/drivers/md/bcache/bset.c
+++ b/drivers/md/bcache/bset.c
@@ -116,47 +116,46 @@ bool bch_ptr_bad(struct btree *b, const struct bkey *k)
 	    bch_ptr_invalid(b, k))
 		return true;
 
-	if (KEY_PTRS(k) && PTR_DEV(k, 0) == PTR_CHECK_DEV)
-		return true;
+	for (i = 0; i < KEY_PTRS(k); i++) {
+		if (!ptr_available(b->c, k, i))
+			return true;
 
-	for (i = 0; i < KEY_PTRS(k); i++)
-		if (ptr_available(b->c, k, i)) {
-			g = PTR_BUCKET(b->c, k, i);
-			stale = ptr_stale(b->c, k, i);
+		g = PTR_BUCKET(b->c, k, i);
+		stale = ptr_stale(b->c, k, i);
 
-			btree_bug_on(stale > 96, b,
-				     "key too stale: %i, need_gc %u",
-				     stale, b->c->need_gc);
+		btree_bug_on(stale > 96, b,
+			     "key too stale: %i, need_gc %u",
+			     stale, b->c->need_gc);
 
-			btree_bug_on(stale && KEY_DIRTY(k) && KEY_SIZE(k),
-				     b, "stale dirty pointer");
+		btree_bug_on(stale && KEY_DIRTY(k) && KEY_SIZE(k),
+			     b, "stale dirty pointer");
 
-			if (stale)
-				return true;
+		if (stale)
+			return true;
 
 #ifdef CONFIG_BCACHE_EDEBUG
-			if (!mutex_trylock(&b->c->bucket_lock))
-				continue;
-
-			if (b->level) {
-				if (KEY_DIRTY(k) ||
-				    g->prio != BTREE_PRIO ||
-				    (b->c->gc_mark_valid &&
-				     GC_MARK(g) != GC_MARK_METADATA))
-					goto bug;
-
-			} else {
-				if (g->prio == BTREE_PRIO)
-					goto bug;
-
-				if (KEY_DIRTY(k) &&
-				    b->c->gc_mark_valid &&
-				    GC_MARK(g) != GC_MARK_DIRTY)
-					goto bug;
-			}
-			mutex_unlock(&b->c->bucket_lock);
-#endif
+		if (!mutex_trylock(&b->c->bucket_lock))
+			continue;
+
+		if (b->level) {
+			if (KEY_DIRTY(k) ||
+			    g->prio != BTREE_PRIO ||
+			    (b->c->gc_mark_valid &&
+			     GC_MARK(g) != GC_MARK_METADATA))
+				goto bug;
+
+		} else {
+			if (g->prio == BTREE_PRIO)
+				goto bug;
+
+			if (KEY_DIRTY(k) &&
+			    b->c->gc_mark_valid &&
+			    GC_MARK(g) != GC_MARK_DIRTY)
+				goto bug;
 		}
+		mutex_unlock(&b->c->bucket_lock);
+#endif
+	}
 
 	return false;
 #ifdef CONFIG_BCACHE_EDEBUG
-- 
cgit 


From 280481d06c8a683d9aaa26125476222e76b733c5 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Thu, 24 Oct 2013 16:36:03 -0700
Subject: bcache: Debug code improvements

Couple changes:
 * Consolidate bch_check_keys() and bch_check_key_order(), and move the
   checks that only check_key_order() could do to bch_btree_iter_next().

 * Get rid of CONFIG_BCACHE_EDEBUG - now, all that code is compiled in
   when CONFIG_BCACHE_DEBUG is enabled, and there's now a sysfs file to
   flip on the EDEBUG checks at runtime.

 * Dropped an old not terribly useful check in rw_unlock(), and
   refactored/improved a some of the other debug code.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/Kconfig  |  11 +---
 drivers/md/bcache/alloc.c  |   5 +-
 drivers/md/bcache/bcache.h |  10 +---
 drivers/md/bcache/bset.c   | 112 ++++++++++++++++++++-----------------
 drivers/md/bcache/bset.h   |   3 +
 drivers/md/bcache/btree.c  |   8 ++-
 drivers/md/bcache/btree.h  |   8 ---
 drivers/md/bcache/debug.c  | 136 +++++++++++++++++++--------------------------
 drivers/md/bcache/debug.h  |  46 +++++++--------
 drivers/md/bcache/sysfs.c  |   5 ++
 drivers/md/bcache/util.h   |   4 +-
 11 files changed, 162 insertions(+), 186 deletions(-)

diff --git a/drivers/md/bcache/Kconfig b/drivers/md/bcache/Kconfig
index f950c9d29f3e..2638417b19aa 100644
--- a/drivers/md/bcache/Kconfig
+++ b/drivers/md/bcache/Kconfig
@@ -13,15 +13,8 @@ config BCACHE_DEBUG
 	---help---
 	Don't select this option unless you're a developer
 
-	Enables extra debugging tools (primarily a fuzz tester)
-
-config BCACHE_EDEBUG
-	bool "Extended runtime checks"
-	depends on BCACHE
-	---help---
-	Don't select this option unless you're a developer
-
-	Enables extra runtime checks which significantly affect performance
+	Enables extra debugging tools, allows expensive runtime checks to be
+	turned on.
 
 config BCACHE_CLOSURES_DEBUG
 	bool "Debug closures"
diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c
index 4970ddc6a7f6..ed5920b20c61 100644
--- a/drivers/md/bcache/alloc.c
+++ b/drivers/md/bcache/alloc.c
@@ -398,8 +398,7 @@ long bch_bucket_alloc(struct cache *ca, unsigned watermark, bool wait)
 out:
 	wake_up_process(ca->alloc_thread);
 
-#ifdef CONFIG_BCACHE_EDEBUG
-	{
+	if (expensive_debug_checks(ca->set)) {
 		size_t iter;
 		long i;
 
@@ -413,7 +412,7 @@ out:
 		fifo_for_each(i, &ca->unused, iter)
 			BUG_ON(i == r);
 	}
-#endif
+
 	b = ca->buckets + r;
 
 	BUG_ON(atomic_read(&b->pin) != 1);
diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index 045cb99f1ca6..d03bc6f66493 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -690,6 +690,7 @@ struct cache_set {
 	unsigned short		journal_delay_ms;
 	unsigned		verify:1;
 	unsigned		key_merging_disabled:1;
+	unsigned		expensive_debug_checks:1;
 	unsigned		gc_always_rewrite:1;
 	unsigned		shrinker_disabled:1;
 	unsigned		copy_gc_enabled:1;
@@ -698,15 +699,6 @@ struct cache_set {
 	struct hlist_head	bucket_hash[1 << BUCKET_HASH_BITS];
 };
 
-static inline bool key_merging_disabled(struct cache_set *c)
-{
-#ifdef CONFIG_BCACHE_DEBUG
-	return c->key_merging_disabled;
-#else
-	return 0;
-#endif
-}
-
 struct bbio {
 	unsigned		submit_time_us;
 	union {
diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c
index f32216c75948..6bffde478926 100644
--- a/drivers/md/bcache/bset.c
+++ b/drivers/md/bcache/bset.c
@@ -106,6 +106,43 @@ bad:
 	return true;
 }
 
+static bool ptr_bad_expensive_checks(struct btree *b, const struct bkey *k,
+				     unsigned ptr)
+{
+	struct bucket *g = PTR_BUCKET(b->c, k, ptr);
+	char buf[80];
+
+	if (mutex_trylock(&b->c->bucket_lock)) {
+		if (b->level) {
+			if (KEY_DIRTY(k) ||
+			    g->prio != BTREE_PRIO ||
+			    (b->c->gc_mark_valid &&
+			     GC_MARK(g) != GC_MARK_METADATA))
+				goto err;
+
+		} else {
+			if (g->prio == BTREE_PRIO)
+				goto err;
+
+			if (KEY_DIRTY(k) &&
+			    b->c->gc_mark_valid &&
+			    GC_MARK(g) != GC_MARK_DIRTY)
+				goto err;
+		}
+		mutex_unlock(&b->c->bucket_lock);
+	}
+
+	return false;
+err:
+	mutex_unlock(&b->c->bucket_lock);
+	bch_bkey_to_text(buf, sizeof(buf), k);
+	btree_bug(b,
+"inconsistent pointer %s: bucket %zu pin %i prio %i gen %i last_gc %i mark %llu gc_gen %i",
+		  buf, PTR_BUCKET_NR(b->c, k, ptr), atomic_read(&g->pin),
+		  g->prio, g->gen, g->last_gc, GC_MARK(g), g->gc_gen);
+	return true;
+}
+
 bool bch_ptr_bad(struct btree *b, const struct bkey *k)
 {
 	struct bucket *g;
@@ -133,46 +170,12 @@ bool bch_ptr_bad(struct btree *b, const struct bkey *k)
 		if (stale)
 			return true;
 
-#ifdef CONFIG_BCACHE_EDEBUG
-		if (!mutex_trylock(&b->c->bucket_lock))
-			continue;
-
-		if (b->level) {
-			if (KEY_DIRTY(k) ||
-			    g->prio != BTREE_PRIO ||
-			    (b->c->gc_mark_valid &&
-			     GC_MARK(g) != GC_MARK_METADATA))
-				goto bug;
-
-		} else {
-			if (g->prio == BTREE_PRIO)
-				goto bug;
-
-			if (KEY_DIRTY(k) &&
-			    b->c->gc_mark_valid &&
-			    GC_MARK(g) != GC_MARK_DIRTY)
-				goto bug;
-		}
-		mutex_unlock(&b->c->bucket_lock);
-#endif
+		if (expensive_debug_checks(b->c) &&
+		    ptr_bad_expensive_checks(b, k, i))
+			return true;
 	}
 
 	return false;
-#ifdef CONFIG_BCACHE_EDEBUG
-bug:
-	mutex_unlock(&b->c->bucket_lock);
-
-	{
-		char buf[80];
-
-		bch_bkey_to_text(buf, sizeof(buf), k);
-		btree_bug(b,
-"inconsistent pointer %s: bucket %zu pin %i prio %i gen %i last_gc %i mark %llu gc_gen %i",
-			  buf, PTR_BUCKET_NR(b->c, k, i), atomic_read(&g->pin),
-			  g->prio, g->gen, g->last_gc, GC_MARK(g), g->gc_gen);
-	}
-	return true;
-#endif
 }
 
 /* Key/pointer manipulation */
@@ -821,16 +824,16 @@ struct bkey *__bch_bset_search(struct btree *b, struct bset_tree *t,
 	} else
 		i = bset_search_write_set(b, t, search);
 
-#ifdef CONFIG_BCACHE_EDEBUG
-	BUG_ON(bset_written(b, t) &&
-	       i.l != t->data->start &&
-	       bkey_cmp(tree_to_prev_bkey(t,
-		  inorder_to_tree(bkey_to_cacheline(t, i.l), t)),
-			search) > 0);
+	if (expensive_debug_checks(b->c)) {
+		BUG_ON(bset_written(b, t) &&
+		       i.l != t->data->start &&
+		       bkey_cmp(tree_to_prev_bkey(t,
+			  inorder_to_tree(bkey_to_cacheline(t, i.l), t)),
+				search) > 0);
 
-	BUG_ON(i.r != end(t->data) &&
-	       bkey_cmp(i.r, search) <= 0);
-#endif
+		BUG_ON(i.r != end(t->data) &&
+		       bkey_cmp(i.r, search) <= 0);
+	}
 
 	while (likely(i.l != i.r) &&
 	       bkey_cmp(i.l, search) <= 0)
@@ -871,12 +874,16 @@ void bch_btree_iter_push(struct btree_iter *iter, struct bkey *k,
 }
 
 struct bkey *__bch_btree_iter_init(struct btree *b, struct btree_iter *iter,
-			       struct bkey *search, struct bset_tree *start)
+				   struct bkey *search, struct bset_tree *start)
 {
 	struct bkey *ret = NULL;
 	iter->size = ARRAY_SIZE(iter->data);
 	iter->used = 0;
 
+#ifdef CONFIG_BCACHE_DEBUG
+	iter->b = b;
+#endif
+
 	for (; start <= &b->sets[b->nsets]; start++) {
 		ret = bch_bset_search(b, start, search);
 		bch_btree_iter_push(iter, ret, end(start->data));
@@ -891,6 +898,8 @@ struct bkey *bch_btree_iter_next(struct btree_iter *iter)
 	struct bkey *ret = NULL;
 
 	if (!btree_iter_end(iter)) {
+		bch_btree_iter_next_check(iter);
+
 		ret = iter->data->k;
 		iter->data->k = bkey_next(iter->data->k);
 
@@ -1002,7 +1011,6 @@ static void btree_mergesort(struct btree *b, struct bset *out,
 	out->keys = last ? (uint64_t *) bkey_next(last) - out->d : 0;
 
 	pr_debug("sorted %i keys", out->keys);
-	bch_check_key_order(b, out);
 }
 
 static void __btree_sort(struct btree *b, struct btree_iter *iter,
@@ -1063,15 +1071,15 @@ static void __btree_sort(struct btree *b, struct btree_iter *iter,
 
 void bch_btree_sort_partial(struct btree *b, unsigned start)
 {
-	size_t oldsize = 0, order = b->page_order, keys = 0;
+	size_t order = b->page_order, keys = 0;
 	struct btree_iter iter;
+	int oldsize = bch_count_data(b);
+
 	__bch_btree_iter_init(b, &iter, NULL, &b->sets[start]);
 
 	BUG_ON(b->sets[b->nsets].data == write_block(b) &&
 	       (b->sets[b->nsets].size || b->nsets));
 
-	if (b->written)
-		oldsize = bch_count_data(b);
 
 	if (start) {
 		unsigned i;
@@ -1087,7 +1095,7 @@ void bch_btree_sort_partial(struct btree *b, unsigned start)
 
 	__btree_sort(b, &iter, start, order, false);
 
-	EBUG_ON(b->written && bch_count_data(b) != oldsize);
+	EBUG_ON(b->written && oldsize >= 0 && bch_count_data(b) != oldsize);
 }
 
 void bch_btree_sort_and_fix_extents(struct btree *b, struct btree_iter *iter)
diff --git a/drivers/md/bcache/bset.h b/drivers/md/bcache/bset.h
index 5cd90565dfe2..a043a92d4dc9 100644
--- a/drivers/md/bcache/bset.h
+++ b/drivers/md/bcache/bset.h
@@ -148,6 +148,9 @@
 
 struct btree_iter {
 	size_t size, used;
+#ifdef CONFIG_BCACHE_DEBUG
+	struct btree *b;
+#endif
 	struct btree_iter_set {
 		struct bkey *k, *end;
 	} data[MAX_BSETS];
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index aba787d954e5..fa4d0b1f6d75 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -216,6 +216,10 @@ static void bch_btree_node_read_done(struct btree *b)
 	iter->size = b->c->sb.bucket_size / b->c->sb.block_size;
 	iter->used = 0;
 
+#ifdef CONFIG_BCACHE_DEBUG
+	iter->b = b;
+#endif
+
 	if (!i->seq)
 		goto err;
 
@@ -454,7 +458,7 @@ void bch_btree_node_write(struct btree *b, struct closure *parent)
 	BUG_ON(b->written >= btree_blocks(b));
 	BUG_ON(b->written && !i->keys);
 	BUG_ON(b->sets->data->seq != i->seq);
-	bch_check_key_order(b, i);
+	bch_check_keys(b, "writing");
 
 	cancel_delayed_work(&b->work);
 
@@ -1917,7 +1921,7 @@ static bool bch_btree_insert_keys(struct btree *b, struct btree_op *op,
 				  struct bkey *replace_key)
 {
 	bool ret = false;
-	unsigned oldsize = bch_count_data(b);
+	int oldsize = bch_count_data(b);
 
 	while (!bch_keylist_empty(insert_keys)) {
 		struct bset *i = write_block(b);
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index 8fc1e8925399..27e90b189112 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -259,14 +259,6 @@ static inline void rw_lock(bool w, struct btree *b, int level)
 
 static inline void rw_unlock(bool w, struct btree *b)
 {
-#ifdef CONFIG_BCACHE_EDEBUG
-	unsigned i;
-
-	if (w && b->key.ptr[0])
-		for (i = 0; i <= b->nsets; i++)
-			bch_check_key_order(b, b->sets[i].data);
-#endif
-
 	if (w)
 		b->seq++;
 	(w ? up_write : up_read)(&b->lock);
diff --git a/drivers/md/bcache/debug.c b/drivers/md/bcache/debug.c
index d9ccb3169aa2..e99e6b8852b2 100644
--- a/drivers/md/bcache/debug.c
+++ b/drivers/md/bcache/debug.c
@@ -76,29 +76,17 @@ int bch_bkey_to_text(char *buf, size_t size, const struct bkey *k)
 	return out - buf;
 }
 
-int bch_btree_to_text(char *buf, size_t size, const struct btree *b)
-{
-	return scnprintf(buf, size, "%zu level %i/%i",
-			 PTR_BUCKET_NR(b->c, &b->key, 0),
-			 b->level, b->c->root ? b->c->root->level : -1);
-}
-
-#if defined(CONFIG_BCACHE_DEBUG) || defined(CONFIG_BCACHE_EDEBUG)
-
-static bool skipped_backwards(struct btree *b, struct bkey *k)
-{
-	return bkey_cmp(k, (!b->level)
-			? &START_KEY(bkey_next(k))
-			: bkey_next(k)) > 0;
-}
+#ifdef CONFIG_BCACHE_DEBUG
 
 static void dump_bset(struct btree *b, struct bset *i)
 {
-	struct bkey *k;
+	struct bkey *k, *next;
 	unsigned j;
 	char buf[80];
 
-	for (k = i->start; k < end(i); k = bkey_next(k)) {
+	for (k = i->start; k < end(i); k = next) {
+		next = bkey_next(k);
+
 		bch_bkey_to_text(buf, sizeof(buf), k);
 		printk(KERN_ERR "block %zu key %zi/%u: %s", index(i, b),
 		       (uint64_t *) k - i->d, i->keys, buf);
@@ -114,15 +102,21 @@ static void dump_bset(struct btree *b, struct bset *i)
 
 		printk(" %s\n", bch_ptr_status(b->c, k));
 
-		if (bkey_next(k) < end(i) &&
-		    skipped_backwards(b, k))
+		if (next < end(i) &&
+		    bkey_cmp(k, !b->level ? &START_KEY(next) : next) > 0)
 			printk(KERN_ERR "Key skipped backwards\n");
 	}
 }
 
-#endif
+static void bch_dump_bucket(struct btree *b)
+{
+	unsigned i;
 
-#ifdef CONFIG_BCACHE_DEBUG
+	console_lock();
+	for (i = 0; i <= b->nsets; i++)
+		dump_bset(b, b->sets[i].data);
+	console_unlock();
+}
 
 void bch_btree_verify(struct btree *b, struct bset *new)
 {
@@ -211,11 +205,7 @@ out_put:
 	bio_put(check);
 }
 
-#endif
-
-#ifdef CONFIG_BCACHE_EDEBUG
-
-unsigned bch_count_data(struct btree *b)
+int __bch_count_data(struct btree *b)
 {
 	unsigned ret = 0;
 	struct btree_iter iter;
@@ -227,72 +217,60 @@ unsigned bch_count_data(struct btree *b)
 	return ret;
 }
 
-static void vdump_bucket_and_panic(struct btree *b, const char *fmt,
-				   va_list args)
-{
-	unsigned i;
-	char buf[80];
-
-	console_lock();
-
-	for (i = 0; i <= b->nsets; i++)
-		dump_bset(b, b->sets[i].data);
-
-	vprintk(fmt, args);
-
-	console_unlock();
-
-	bch_btree_to_text(buf, sizeof(buf), b);
-	panic("at %s\n", buf);
-}
-
-void bch_check_key_order_msg(struct btree *b, struct bset *i,
-			     const char *fmt, ...)
-{
-	struct bkey *k;
-
-	if (!i->keys)
-		return;
-
-	for (k = i->start; bkey_next(k) < end(i); k = bkey_next(k))
-		if (skipped_backwards(b, k)) {
-			va_list args;
-			va_start(args, fmt);
-
-			vdump_bucket_and_panic(b, fmt, args);
-			va_end(args);
-		}
-}
-
-void bch_check_keys(struct btree *b, const char *fmt, ...)
+void __bch_check_keys(struct btree *b, const char *fmt, ...)
 {
 	va_list args;
 	struct bkey *k, *p = NULL;
 	struct btree_iter iter;
-
-	if (b->level)
-		return;
+	const char *err;
 
 	for_each_key(b, k, &iter) {
-		if (p && bkey_cmp(&START_KEY(p), &START_KEY(k)) > 0) {
-			printk(KERN_ERR "Keys out of order:\n");
-			goto bug;
-		}
-
-		if (bch_ptr_invalid(b, k))
-			continue;
-
-		if (p && bkey_cmp(p, &START_KEY(k)) > 0) {
-			printk(KERN_ERR "Overlapping keys:\n");
-			goto bug;
+		if (!b->level) {
+			err = "Keys out of order";
+			if (p && bkey_cmp(&START_KEY(p), &START_KEY(k)) > 0)
+				goto bug;
+
+			if (bch_ptr_invalid(b, k))
+				continue;
+
+			err =  "Overlapping keys";
+			if (p && bkey_cmp(p, &START_KEY(k)) > 0)
+				goto bug;
+		} else {
+			if (bch_ptr_bad(b, k))
+				continue;
+
+			err = "Duplicate keys";
+			if (p && !bkey_cmp(p, k))
+				goto bug;
 		}
 		p = k;
 	}
+
+	err = "Key larger than btree node key";
+	if (p && bkey_cmp(p, &b->key) > 0)
+		goto bug;
+
 	return;
 bug:
+	bch_dump_bucket(b);
+
 	va_start(args, fmt);
-	vdump_bucket_and_panic(b, fmt, args);
+	vprintk(fmt, args);
 	va_end(args);
+
+	panic("bcache error: %s:\n", err);
+}
+
+void bch_btree_iter_next_check(struct btree_iter *iter)
+{
+	struct bkey *k = iter->data->k, *next = bkey_next(k);
+
+	if (next < iter->data->end &&
+	    bkey_cmp(k, iter->b->level ? next : &START_KEY(next)) > 0) {
+		bch_dump_bucket(iter->b);
+		panic("Key skipped backwards\n");
+	}
 }
 
 #endif
diff --git a/drivers/md/bcache/debug.h b/drivers/md/bcache/debug.h
index 0f4b3440512c..7914ba0ff316 100644
--- a/drivers/md/bcache/debug.h
+++ b/drivers/md/bcache/debug.h
@@ -4,40 +4,42 @@
 /* Btree/bkey debug printing */
 
 int bch_bkey_to_text(char *buf, size_t size, const struct bkey *k);
-int bch_btree_to_text(char *buf, size_t size, const struct btree *b);
-
-#ifdef CONFIG_BCACHE_EDEBUG
-
-unsigned bch_count_data(struct btree *);
-void bch_check_key_order_msg(struct btree *, struct bset *, const char *, ...);
-void bch_check_keys(struct btree *, const char *, ...);
-
-#define bch_check_key_order(b, i)			\
-	bch_check_key_order_msg(b, i, "keys out of order")
-#define EBUG_ON(cond)		BUG_ON(cond)
-
-#else /* EDEBUG */
-
-#define bch_count_data(b)				0
-#define bch_check_key_order(b, i)			do {} while (0)
-#define bch_check_key_order_msg(b, i, ...)		do {} while (0)
-#define bch_check_keys(b, ...)				do {} while (0)
-#define EBUG_ON(cond)					do {} while (0)
-
-#endif
 
 #ifdef CONFIG_BCACHE_DEBUG
 
 void bch_btree_verify(struct btree *, struct bset *);
 void bch_data_verify(struct cached_dev *, struct bio *);
+int __bch_count_data(struct btree *);
+void __bch_check_keys(struct btree *, const char *, ...);
+void bch_btree_iter_next_check(struct btree_iter *);
+
+#define EBUG_ON(cond)			BUG_ON(cond)
+#define expensive_debug_checks(c)	((c)->expensive_debug_checks)
+#define key_merging_disabled(c)		((c)->key_merging_disabled)
 
 #else /* DEBUG */
 
 static inline void bch_btree_verify(struct btree *b, struct bset *i) {}
-static inline void bch_data_verify(struct cached_dev *dc, struct bio *bio) {};
+static inline void bch_data_verify(struct cached_dev *dc, struct bio *bio) {}
+static inline int __bch_count_data(struct btree *b) { return -1; }
+static inline void __bch_check_keys(struct btree *b, const char *fmt, ...) {}
+static inline void bch_btree_iter_next_check(struct btree_iter *iter) {}
+
+#define EBUG_ON(cond)			do { if (cond); } while (0)
+#define expensive_debug_checks(c)	0
+#define key_merging_disabled(c)		0
 
 #endif
 
+#define bch_count_data(b)						\
+	(expensive_debug_checks((b)->c) ? __bch_count_data(b) : -1)
+
+#define bch_check_keys(b, ...)						\
+do {									\
+	if (expensive_debug_checks((b)->c))				\
+		__bch_check_keys(b, __VA_ARGS__);			\
+} while (0)
+
 #ifdef CONFIG_DEBUG_FS
 void bch_debug_init_cache_set(struct cache_set *);
 #else
diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
index ab286b9b5e40..9687771ec6f3 100644
--- a/drivers/md/bcache/sysfs.c
+++ b/drivers/md/bcache/sysfs.c
@@ -102,6 +102,7 @@ rw_attribute(io_error_halflife);
 rw_attribute(verify);
 rw_attribute(key_merging_disabled);
 rw_attribute(gc_always_rewrite);
+rw_attribute(expensive_debug_checks);
 rw_attribute(freelist_percent);
 rw_attribute(cache_replacement_policy);
 rw_attribute(btree_shrinker_disabled);
@@ -517,6 +518,8 @@ lock_root:
 	sysfs_print(active_journal_entries,	fifo_used(&c->journal.pin));
 	sysfs_printf(verify,			"%i", c->verify);
 	sysfs_printf(key_merging_disabled,	"%i", c->key_merging_disabled);
+	sysfs_printf(expensive_debug_checks,
+		     "%i", c->expensive_debug_checks);
 	sysfs_printf(gc_always_rewrite,		"%i", c->gc_always_rewrite);
 	sysfs_printf(btree_shrinker_disabled,	"%i", c->shrinker_disabled);
 	sysfs_printf(copy_gc_enabled,		"%i", c->copy_gc_enabled);
@@ -599,6 +602,7 @@ STORE(__bch_cache_set)
 	sysfs_strtoul(journal_delay_ms,		c->journal_delay_ms);
 	sysfs_strtoul(verify,			c->verify);
 	sysfs_strtoul(key_merging_disabled,	c->key_merging_disabled);
+	sysfs_strtoul(expensive_debug_checks,	c->expensive_debug_checks);
 	sysfs_strtoul(gc_always_rewrite,	c->gc_always_rewrite);
 	sysfs_strtoul(btree_shrinker_disabled,	c->shrinker_disabled);
 	sysfs_strtoul(copy_gc_enabled,		c->copy_gc_enabled);
@@ -674,6 +678,7 @@ static struct attribute *bch_cache_set_internal_files[] = {
 #ifdef CONFIG_BCACHE_DEBUG
 	&sysfs_verify,
 	&sysfs_key_merging_disabled,
+	&sysfs_expensive_debug_checks,
 #endif
 	&sysfs_gc_always_rewrite,
 	&sysfs_btree_shrinker_disabled,
diff --git a/drivers/md/bcache/util.h b/drivers/md/bcache/util.h
index 38ae7a4ce928..8ce5aab55962 100644
--- a/drivers/md/bcache/util.h
+++ b/drivers/md/bcache/util.h
@@ -15,12 +15,12 @@
 
 struct closure;
 
-#ifdef CONFIG_BCACHE_EDEBUG
+#ifdef CONFIG_BCACHE_DEBUG
 
 #define atomic_dec_bug(v)	BUG_ON(atomic_dec_return(v) < 0)
 #define atomic_inc_bug(v, i)	BUG_ON(atomic_inc_return(v) <= i)
 
-#else /* EDEBUG */
+#else /* DEBUG */
 
 #define atomic_dec_bug(v)	atomic_dec(v)
 #define atomic_inc_bug(v, i)	atomic_inc(v)
-- 
cgit 


From 3a3b6a4e075188342b58d4b6560f5540af64cac0 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 16:46:42 -0700
Subject: bcache: Don't bother with bucket refcount for btree node allocations

The bucket refcount (dropped with bkey_put()) is only needed to prevent
the newly allocated bucket from being garbage collected until we've
added a pointer to it somewhere. But for btree node allocations, the
fact that we have btree nodes locked is enough to guard against races
with garbage collection.

Eventually the per bucket refcount is going to be replaced with
something specific to bch_alloc_sectors().

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/alloc.c |  4 ++--
 drivers/md/bcache/btree.c | 28 +++++-----------------------
 drivers/md/bcache/btree.h |  2 +-
 drivers/md/bcache/super.c |  2 +-
 4 files changed, 9 insertions(+), 27 deletions(-)

diff --git a/drivers/md/bcache/alloc.c b/drivers/md/bcache/alloc.c
index ed5920b20c61..2b46bf1d7e40 100644
--- a/drivers/md/bcache/alloc.c
+++ b/drivers/md/bcache/alloc.c
@@ -472,7 +472,7 @@ int __bch_bucket_alloc_set(struct cache_set *c, unsigned watermark,
 	return 0;
 err:
 	bch_bucket_free(c, k);
-	__bkey_put(c, k);
+	bkey_put(c, k);
 	return -1;
 }
 
@@ -588,7 +588,7 @@ bool bch_alloc_sectors(struct cache_set *c, struct bkey *k, unsigned sectors,
 	 * didn't use it, drop the refcount bch_bucket_alloc_set() took:
 	 */
 	if (KEY_PTRS(&alloc.key))
-		__bkey_put(c, &alloc.key);
+		bkey_put(c, &alloc.key);
 
 	for (i = 0; i < KEY_PTRS(&b->key); i++)
 		EBUG_ON(ptr_stale(c, &b->key, i));
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index fa4d0b1f6d75..7dff73ba1b71 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -180,7 +180,7 @@ static inline bool should_split(struct btree *b)
 
 /* Btree key manipulation */
 
-void __bkey_put(struct cache_set *c, struct bkey *k)
+void bkey_put(struct cache_set *c, struct bkey *k)
 {
 	unsigned i;
 
@@ -189,12 +189,6 @@ void __bkey_put(struct cache_set *c, struct bkey *k)
 			atomic_dec_bug(&PTR_BUCKET(c, k, i)->pin);
 }
 
-static void bkey_put(struct cache_set *c, struct bkey *k, int level)
-{
-	if ((level && KEY_OFFSET(k)) || !level)
-		__bkey_put(c, k);
-}
-
 /* Btree IO */
 
 static uint64_t btree_csum_set(struct btree *b, struct bset *i)
@@ -1068,6 +1062,7 @@ retry:
 	if (__bch_bucket_alloc_set(c, WATERMARK_METADATA, &k.key, 1, true))
 		goto err;
 
+	bkey_put(c, &k.key);
 	SET_KEY_SIZE(&k.key, c->btree_pages * PAGE_SECTORS);
 
 	b = mca_alloc(c, &k.key, level);
@@ -1077,7 +1072,6 @@ retry:
 	if (!b) {
 		cache_bug(c,
 			"Tried to allocate bucket that was in btree cache");
-		__bkey_put(c, &k.key);
 		goto retry;
 	}
 
@@ -1090,7 +1084,6 @@ retry:
 	return b;
 err_free:
 	bch_bucket_free(c, &k.key);
-	__bkey_put(c, &k.key);
 err:
 	mutex_unlock(&c->bucket_lock);
 
@@ -1217,7 +1210,6 @@ static struct btree *btree_gc_alloc(struct btree *b, struct bkey *k)
 
 	if (!IS_ERR_OR_NULL(n)) {
 		swap(b, n);
-		__bkey_put(b->c, &b->key);
 
 		memcpy(k->ptr, b->key.ptr,
 		       sizeof(uint64_t) * KEY_PTRS(&b->key));
@@ -1932,19 +1924,12 @@ static bool bch_btree_insert_keys(struct btree *b, struct btree_op *op,
 			break;
 
 		if (bkey_cmp(k, &b->key) <= 0) {
-			bkey_put(b->c, k, b->level);
+			if (!b->level)
+				bkey_put(b->c, k);
 
 			ret |= btree_insert_key(b, op, k, replace_key);
 			bch_keylist_pop_front(insert_keys);
 		} else if (bkey_cmp(&START_KEY(k), &b->key) < 0) {
-#if 0
-			if (replace_key) {
-				bkey_put(b->c, k, b->level);
-				bch_keylist_pop_front(insert_keys);
-				op->insert_collision = true;
-				break;
-			}
-#endif
 			BKEY_PADDED(key) temp;
 			bkey_copy(&temp.key, insert_keys->keys);
 
@@ -2071,11 +2056,9 @@ static int btree_split(struct btree *b, struct btree_op *op,
 
 	return 0;
 err_free2:
-	__bkey_put(n2->c, &n2->key);
 	btree_node_free(n2);
 	rw_unlock(true, n2);
 err_free1:
-	__bkey_put(n1->c, &n1->key);
 	btree_node_free(n1);
 	rw_unlock(true, n1);
 err:
@@ -2225,7 +2208,7 @@ int bch_btree_insert(struct cache_set *c, struct keylist *keys,
 		pr_err("error %i", ret);
 
 		while ((k = bch_keylist_pop(keys)))
-			bkey_put(c, k, 0);
+			bkey_put(c, k);
 	} else if (op.op.insert_collision)
 		ret = -ESRCH;
 
@@ -2251,7 +2234,6 @@ void bch_btree_set_root(struct btree *b)
 	mutex_unlock(&b->c->bucket_lock);
 
 	b->c->root = b;
-	__bkey_put(b->c, &b->key);
 
 	bch_journal_meta(b->c, &cl);
 	closure_sync(&cl);
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index 27e90b189112..d4b705eeec24 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -216,7 +216,7 @@ static inline struct bkey *bch_btree_iter_init(struct btree *b,
 	return __bch_btree_iter_init(b, iter, search, b->sets);
 }
 
-void __bkey_put(struct cache_set *c, struct bkey *k);
+void bkey_put(struct cache_set *c, struct bkey *k);
 
 /* Looping macros */
 
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index c67d19a8913d..05f8ccb9f8ca 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -426,7 +426,7 @@ static int __uuid_write(struct cache_set *c)
 	closure_sync(&cl);
 
 	bkey_copy(&c->uuid_bucket, &k.key);
-	__bkey_put(c, &k.key);
+	bkey_put(c, &k.key);
 	return 0;
 }
 
-- 
cgit 


From d5cc66e95744065f96024add4bf7d7e019be54ac Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 23:06:40 -0700
Subject: bcache: bch_(btree|extent)_ptr_invalid()

Trying to treat btree pointers and leaf node pointers the same way was a
mistake - going to start being more explicit about the type of
key/pointer we're dealing with. This is the first part of that
refactoring; this patch shouldn't change any actual behaviour.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bset.c  | 49 ++++++++++++++++++++++++++++++++++-------------
 drivers/md/bcache/bset.h  |  4 +++-
 drivers/md/bcache/btree.h | 13 ++++++++-----
 drivers/md/bcache/super.c |  4 ++--
 4 files changed, 49 insertions(+), 21 deletions(-)

diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c
index 6bffde478926..b615348c45fc 100644
--- a/drivers/md/bcache/bset.c
+++ b/drivers/md/bcache/bset.c
@@ -73,19 +73,9 @@ void bch_keylist_pop_front(struct keylist *l)
 
 /* Pointer validation */
 
-bool __bch_ptr_invalid(struct cache_set *c, int level, const struct bkey *k)
+static bool __ptr_invalid(struct cache_set *c, const struct bkey *k)
 {
 	unsigned i;
-	char buf[80];
-
-	if (level && (!KEY_PTRS(k) || !KEY_SIZE(k) || KEY_DIRTY(k)))
-		goto bad;
-
-	if (!level && KEY_SIZE(k) > KEY_OFFSET(k))
-		goto bad;
-
-	if (!KEY_SIZE(k))
-		return true;
 
 	for (i = 0; i < KEY_PTRS(k); i++)
 		if (ptr_available(c, k, i)) {
@@ -96,13 +86,46 @@ bool __bch_ptr_invalid(struct cache_set *c, int level, const struct bkey *k)
 			if (KEY_SIZE(k) + r > c->sb.bucket_size ||
 			    bucket <  ca->sb.first_bucket ||
 			    bucket >= ca->sb.nbuckets)
-				goto bad;
+				return true;
 		}
 
+	return false;
+}
+
+bool bch_btree_ptr_invalid(struct cache_set *c, const struct bkey *k)
+{
+	char buf[80];
+
+	if (!KEY_PTRS(k) || !KEY_SIZE(k) || KEY_DIRTY(k))
+		goto bad;
+
+	if (__ptr_invalid(c, k))
+		goto bad;
+
+	return false;
+bad:
+	bch_bkey_to_text(buf, sizeof(buf), k);
+	cache_bug(c, "spotted btree ptr %s: %s", buf, bch_ptr_status(c, k));
+	return true;
+}
+
+bool bch_extent_ptr_invalid(struct cache_set *c, const struct bkey *k)
+{
+	char buf[80];
+
+	if (!KEY_SIZE(k))
+		return true;
+
+	if (KEY_SIZE(k) > KEY_OFFSET(k))
+		goto bad;
+
+	if (__ptr_invalid(c, k))
+		goto bad;
+
 	return false;
 bad:
 	bch_bkey_to_text(buf, sizeof(buf), k);
-	cache_bug(c, "spotted bad key %s: %s", buf, bch_ptr_status(c, k));
+	cache_bug(c, "spotted extent %s: %s", buf, bch_ptr_status(c, k));
 	return true;
 }
 
diff --git a/drivers/md/bcache/bset.h b/drivers/md/bcache/bset.h
index a043a92d4dc9..e67386001814 100644
--- a/drivers/md/bcache/bset.h
+++ b/drivers/md/bcache/bset.h
@@ -277,7 +277,9 @@ static inline bool bch_cut_back(const struct bkey *where, struct bkey *k)
 }
 
 const char *bch_ptr_status(struct cache_set *, const struct bkey *);
-bool __bch_ptr_invalid(struct cache_set *, int level, const struct bkey *);
+bool bch_btree_ptr_invalid(struct cache_set *, const struct bkey *);
+bool bch_extent_ptr_invalid(struct cache_set *, const struct bkey *);
+
 bool bch_ptr_bad(struct btree *, const struct bkey *);
 
 static inline uint8_t gen_after(uint8_t a, uint8_t b)
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index d4b705eeec24..e11bb8571d24 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -204,11 +204,6 @@ static inline void set_gc_sectors(struct cache_set *c)
 	atomic_set(&c->sectors_to_gc, c->sb.bucket_size * c->nbuckets / 8);
 }
 
-static inline bool bch_ptr_invalid(struct btree *b, const struct bkey *k)
-{
-	return __bch_ptr_invalid(b->c, b->level, k);
-}
-
 static inline struct bkey *bch_btree_iter_init(struct btree *b,
 					       struct btree_iter *iter,
 					       struct bkey *search)
@@ -216,6 +211,14 @@ static inline struct bkey *bch_btree_iter_init(struct btree *b,
 	return __bch_btree_iter_init(b, iter, search, b->sets);
 }
 
+static inline bool bch_ptr_invalid(struct btree *b, const struct bkey *k)
+{
+	if (b->level)
+		return bch_btree_ptr_invalid(b->c, k);
+	else
+		return bch_extent_ptr_invalid(b->c, k);
+}
+
 void bkey_put(struct cache_set *c, struct bkey *k);
 
 /* Looping macros */
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 05f8ccb9f8ca..7ab926d94d81 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -373,7 +373,7 @@ static char *uuid_read(struct cache_set *c, struct jset *j, struct closure *cl)
 {
 	struct bkey *k = &j->uuid_bucket;
 
-	if (__bch_ptr_invalid(c, 1, k))
+	if (bch_btree_ptr_invalid(c, k))
 		return "bad uuid pointer";
 
 	bkey_copy(&c->uuid_bucket, k);
@@ -1522,7 +1522,7 @@ static void run_cache_set(struct cache_set *c)
 		k = &j->btree_root;
 
 		err = "bad btree root";
-		if (__bch_ptr_invalid(c, j->btree_level + 1, k))
+		if (bch_btree_ptr_invalid(c, k))
 			goto err;
 
 		err = "error reading btree root";
-- 
cgit 


From 0eacac22034ca21c73fe49e800d0b938b2047250 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Mon, 1 Jul 2013 19:29:05 -0700
Subject: bcache: PRECEDING_KEY()

btree_insert_key() was open coding this, this is just refactoring.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bset.h  | 18 ++++++++++++++++++
 drivers/md/bcache/btree.c |  9 ++-------
 2 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/drivers/md/bcache/bset.h b/drivers/md/bcache/bset.h
index e67386001814..bc9975526aa1 100644
--- a/drivers/md/bcache/bset.h
+++ b/drivers/md/bcache/bset.h
@@ -353,12 +353,30 @@ void bch_bset_fix_lookup_table(struct btree *, struct bkey *);
 struct bkey *__bch_bset_search(struct btree *, struct bset_tree *,
 			   const struct bkey *);
 
+/*
+ * Returns the first key that is strictly greater than search
+ */
 static inline struct bkey *bch_bset_search(struct btree *b, struct bset_tree *t,
 					   const struct bkey *search)
 {
 	return search ? __bch_bset_search(b, t, search) : t->data->start;
 }
 
+#define PRECEDING_KEY(_k)					\
+({								\
+	struct bkey *_ret = NULL;				\
+								\
+	if (KEY_INODE(_k) || KEY_OFFSET(_k)) {			\
+		_ret = &KEY(KEY_INODE(_k), KEY_OFFSET(_k), 0);	\
+								\
+		if (!_ret->low)					\
+			_ret->high--;				\
+		_ret->low--;					\
+	}							\
+								\
+	_ret;							\
+})
+
 bool bch_bkey_try_merge(struct btree *, struct bkey *, struct bkey *);
 void bch_btree_sort_lazy(struct btree *);
 void bch_btree_sort_into(struct btree *, struct btree *);
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 7dff73ba1b71..773b0e929ff4 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -1844,19 +1844,14 @@ static bool btree_insert_key(struct btree *b, struct btree_op *op,
 
 	if (!b->level) {
 		struct btree_iter iter;
-		struct bkey search = KEY(KEY_INODE(k), KEY_START(k), 0);
 
 		/*
 		 * bset_search() returns the first key that is strictly greater
 		 * than the search key - but for back merging, we want to find
-		 * the first key that is greater than or equal to KEY_START(k) -
-		 * unless KEY_START(k) is 0.
+		 * the previous key.
 		 */
-		if (KEY_OFFSET(&search))
-			SET_KEY_OFFSET(&search, KEY_OFFSET(&search) - 1);
-
 		prev = NULL;
-		m = bch_btree_iter_init(b, &iter, &search);
+		m = bch_btree_iter_init(b, &iter, PRECEDING_KEY(&START_KEY(k)));
 
 		if (fix_overlapping_extents(b, k, &iter, replace_key)) {
 			op->insert_collision = true;
-- 
cgit 


From f269af5a078302712de8ee70d273eba2eb4485ca Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Tue, 23 Jul 2013 20:48:29 -0700
Subject: bcache: Add btree_node_write_sync()

More refactoring - mostly making the interfaces more explicit about what
we actually want to do.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/btree.c | 35 ++++++++++++++++-------------------
 1 file changed, 16 insertions(+), 19 deletions(-)

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 773b0e929ff4..7d6204c41840 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -474,6 +474,15 @@ void bch_btree_node_write(struct btree *b, struct closure *parent)
 		bch_bset_init_next(b);
 }
 
+static void bch_btree_node_write_sync(struct btree *b)
+{
+	struct closure cl;
+
+	closure_init_stack(&cl);
+	bch_btree_node_write(b, &cl);
+	closure_sync(&cl);
+}
+
 static void btree_node_write_work(struct work_struct *w)
 {
 	struct btree *b = container_of(to_delayed_work(w), struct btree, work);
@@ -655,10 +664,8 @@ static int mca_reap(struct btree *b, unsigned min_order, bool flush)
 		return -ENOMEM;
 	}
 
-	if (btree_node_dirty(b)) {
-		bch_btree_node_write(b, &cl);
-		closure_sync(&cl);
-	}
+	if (btree_node_dirty(b))
+		bch_btree_node_write_sync(b);
 
 	/* wait for any in flight btree write */
 	closure_wait_event(&b->io.wait, &cl,
@@ -1411,9 +1418,6 @@ static int bch_btree_gc_root(struct btree *b, struct btree_op *op,
 	struct btree *n = NULL;
 	unsigned keys = 0;
 	int ret = 0, stale = btree_gc_mark_node(b, &keys, gc);
-	struct closure cl;
-
-	closure_init_stack(&cl);
 
 	if (b->level || stale > 10)
 		n = btree_node_alloc_replacement(b);
@@ -1424,12 +1428,10 @@ static int bch_btree_gc_root(struct btree *b, struct btree_op *op,
 	if (b->level)
 		ret = btree_gc_recurse(b, op, writes, gc);
 
-	if (!b->written || btree_node_dirty(b)) {
-		bch_btree_node_write(b, n ? &cl : NULL);
-	}
+	if (!b->written || btree_node_dirty(b))
+		bch_btree_node_write_sync(b);
 
 	if (!IS_ERR_OR_NULL(n)) {
-		closure_sync(&cl);
 		bch_btree_set_root(b);
 		btree_node_free(n);
 		rw_unlock(true, b);
@@ -2104,15 +2106,10 @@ static int bch_btree_insert_node(struct btree *b, struct btree_op *op,
 
 			if (bch_btree_insert_keys(b, op, insert_keys,
 						  replace_key)) {
-				if (!b->level) {
+				if (!b->level)
 					bch_btree_leaf_dirty(b, journal_ref);
-				} else {
-					struct closure cl;
-
-					closure_init_stack(&cl);
-					bch_btree_node_write(b, &cl);
-					closure_sync(&cl);
-				}
+				else
+					bch_btree_node_write_sync(b);
 			}
 		}
 	} while (!bch_keylist_empty(&split_keys));
-- 
cgit 


From 8835c1234dd9a838993a2d5cb7572f57992ebbee Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 24 Jul 2013 23:18:05 -0700
Subject: bcache: Add make_btree_freeing_key()

Refactoring, prep work for incremental garbage collection.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/btree.c | 31 ++++++++++++++++++-------------
 1 file changed, 18 insertions(+), 13 deletions(-)

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 7d6204c41840..a3f8ca4ee6e0 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -1107,6 +1107,22 @@ static struct btree *btree_node_alloc_replacement(struct btree *b)
 	return n;
 }
 
+static void make_btree_freeing_key(struct btree *b, struct bkey *k)
+{
+	unsigned i;
+
+	bkey_copy(k, &b->key);
+	bkey_copy_key(k, &ZERO_KEY);
+
+	for (i = 0; i < KEY_PTRS(k); i++) {
+		uint8_t g = PTR_BUCKET(b->c, k, i)->gen + 1;
+
+		SET_PTR_GEN(k, i, g);
+	}
+
+	atomic_inc(&b->c->prio_blocked);
+}
+
 /* Garbage collection */
 
 uint8_t __bch_btree_mark_key(struct cache_set *c, int level, struct bkey *k)
@@ -2030,20 +2046,9 @@ static int btree_split(struct btree *b, struct btree_op *op,
 		closure_sync(&cl);
 		bch_btree_set_root(n1);
 	} else {
-		unsigned i;
-
-		bkey_copy(parent_keys->top, &b->key);
-		bkey_copy_key(parent_keys->top, &ZERO_KEY);
-
-		for (i = 0; i < KEY_PTRS(&b->key); i++) {
-			uint8_t g = PTR_BUCKET(b->c, &b->key, i)->gen + 1;
-
-			SET_PTR_GEN(parent_keys->top, i, g);
-		}
-
-		bch_keylist_push(parent_keys);
 		closure_sync(&cl);
-		atomic_inc(&b->c->prio_blocked);
+		make_btree_freeing_key(b, parent_keys->top);
+		bch_keylist_push(parent_keys);
 	}
 
 	rw_unlock(true, n1);
-- 
cgit 


From a1f0358b2bf69be216cb6e4ea40fe7ae4d38b8a6 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Tue, 10 Sep 2013 19:07:00 -0700
Subject: bcache: Incremental gc

Big garbage collection rewrite; now, garbage collection uses the same
mechanisms as used elsewhere for inserting/updating btree node pointers,
instead of rewriting interior btree nodes in place.

This makes the code significantly cleaner and less fragile, and means we
can now make garbage collection incremental - it doesn't have to hold a
write lock on the root of the btree for the entire duration of garbage
collection.

This means that there's less of a latency hit for doing garbage
collection, which means we can gc more frequently (and do a better job
of reclaiming from the cache), and we can coalesce across more btree
nodes (improving our space efficiency).

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bcache.h |   1 -
 drivers/md/bcache/btree.c  | 388 ++++++++++++++++++++++++++-------------------
 drivers/md/bcache/btree.h  |   2 +-
 drivers/md/bcache/sysfs.c  |   2 -
 4 files changed, 226 insertions(+), 167 deletions(-)

diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index d03bc6f66493..d6970a651e42 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -477,7 +477,6 @@ struct gc_stat {
 
 	size_t			nkeys;
 	uint64_t		data;	/* sectors */
-	uint64_t		dirty;	/* sectors */
 	unsigned		in_use; /* percent */
 };
 
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index a3f8ca4ee6e0..7d283d217438 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -1176,12 +1176,10 @@ uint8_t __bch_btree_mark_key(struct cache_set *c, int level, struct bkey *k)
 
 #define btree_mark_key(b, k)	__bch_btree_mark_key(b->c, b->level, k)
 
-static int btree_gc_mark_node(struct btree *b, unsigned *keys,
-			      struct gc_stat *gc)
+static bool btree_gc_mark_node(struct btree *b, struct gc_stat *gc)
 {
 	uint8_t stale = 0;
-	unsigned last_dev = -1;
-	struct bcache_device *d = NULL;
+	unsigned keys = 0, good_keys = 0;
 	struct bkey *k;
 	struct btree_iter iter;
 	struct bset_tree *t;
@@ -1189,27 +1187,17 @@ static int btree_gc_mark_node(struct btree *b, unsigned *keys,
 	gc->nodes++;
 
 	for_each_key_filter(b, k, &iter, bch_ptr_invalid) {
-		if (last_dev != KEY_INODE(k)) {
-			last_dev = KEY_INODE(k);
-
-			d = KEY_INODE(k) < b->c->nr_uuids
-				? b->c->devices[last_dev]
-				: NULL;
-		}
-
 		stale = max(stale, btree_mark_key(b, k));
+		keys++;
 
 		if (bch_ptr_bad(b, k))
 			continue;
 
-		*keys += bkey_u64s(k);
-
 		gc->key_bytes += bkey_u64s(k);
 		gc->nkeys++;
+		good_keys++;
 
 		gc->data += KEY_SIZE(k);
-		if (KEY_DIRTY(k))
-			gc->dirty += KEY_SIZE(k);
 	}
 
 	for (t = b->sets; t <= &b->sets[b->nsets]; t++)
@@ -1218,79 +1206,74 @@ static int btree_gc_mark_node(struct btree *b, unsigned *keys,
 			     bkey_cmp(&b->key, &t->end) < 0,
 			     b, "found short btree key in gc");
 
-	return stale;
-}
+	if (b->c->gc_always_rewrite)
+		return true;
 
-static struct btree *btree_gc_alloc(struct btree *b, struct bkey *k)
-{
-	/*
-	 * We block priorities from being written for the duration of garbage
-	 * collection, so we can't sleep in btree_alloc() ->
-	 * bch_bucket_alloc_set(), or we'd risk deadlock - so we don't pass it
-	 * our closure.
-	 */
-	struct btree *n = btree_node_alloc_replacement(b);
-
-	if (!IS_ERR_OR_NULL(n)) {
-		swap(b, n);
+	if (stale > 10)
+		return true;
 
-		memcpy(k->ptr, b->key.ptr,
-		       sizeof(uint64_t) * KEY_PTRS(&b->key));
-
-		btree_node_free(n);
-		up_write(&n->lock);
-	}
+	if ((keys - good_keys) * 2 > keys)
+		return true;
 
-	return b;
+	return false;
 }
 
-/*
- * Leaving this at 2 until we've got incremental garbage collection done; it
- * could be higher (and has been tested with 4) except that garbage collection
- * could take much longer, adversely affecting latency.
- */
-#define GC_MERGE_NODES	2U
+#define GC_MERGE_NODES	4U
 
 struct gc_merge_info {
 	struct btree	*b;
-	struct bkey	*k;
 	unsigned	keys;
 };
 
-static void btree_gc_coalesce(struct btree *b, struct gc_stat *gc,
-			      struct gc_merge_info *r)
+static int bch_btree_insert_node(struct btree *, struct btree_op *,
+				 struct keylist *, atomic_t *, struct bkey *);
+
+static int btree_gc_coalesce(struct btree *b, struct btree_op *op,
+			     struct keylist *keylist, struct gc_stat *gc,
+			     struct gc_merge_info *r)
 {
-	unsigned nodes = 0, keys = 0, blocks;
-	int i;
+	unsigned i, nodes = 0, keys = 0, blocks;
+	struct btree *new_nodes[GC_MERGE_NODES];
 	struct closure cl;
+	struct bkey *k;
 
+	memset(new_nodes, 0, sizeof(new_nodes));
 	closure_init_stack(&cl);
 
-	while (nodes < GC_MERGE_NODES && r[nodes].b)
+	while (nodes < GC_MERGE_NODES && !IS_ERR_OR_NULL(r[nodes].b))
 		keys += r[nodes++].keys;
 
 	blocks = btree_default_blocks(b->c) * 2 / 3;
 
 	if (nodes < 2 ||
 	    __set_blocks(b->sets[0].data, keys, b->c) > blocks * (nodes - 1))
-		return;
-
-	for (i = nodes - 1; i >= 0; --i) {
-		if (r[i].b->written)
-			r[i].b = btree_gc_alloc(r[i].b, r[i].k);
+		return 0;
 
-		if (r[i].b->written)
-			return;
+	for (i = 0; i < nodes; i++) {
+		new_nodes[i] = btree_node_alloc_replacement(r[i].b);
+		if (IS_ERR_OR_NULL(new_nodes[i]))
+			goto out_nocoalesce;
 	}
 
 	for (i = nodes - 1; i > 0; --i) {
-		struct bset *n1 = r[i].b->sets->data;
-		struct bset *n2 = r[i - 1].b->sets->data;
+		struct bset *n1 = new_nodes[i]->sets->data;
+		struct bset *n2 = new_nodes[i - 1]->sets->data;
 		struct bkey *k, *last = NULL;
 
 		keys = 0;
 
-		if (i == 1) {
+		if (i > 1) {
+			for (k = n2->start;
+			     k < end(n2);
+			     k = bkey_next(k)) {
+				if (__set_blocks(n1, n1->keys + keys +
+						 bkey_u64s(k), b->c) > blocks)
+					break;
+
+				last = k;
+				keys += bkey_u64s(k);
+			}
+		} else {
 			/*
 			 * Last node we're not getting rid of - we're getting
 			 * rid of the node at r[0]. Have to try and fit all of
@@ -1299,37 +1282,27 @@ static void btree_gc_coalesce(struct btree *b, struct gc_stat *gc,
 			 * length keys (shouldn't be possible in practice,
 			 * though)
 			 */
-			if (__set_blocks(n1, n1->keys + r->keys,
-					 b->c) > btree_blocks(r[i].b))
-				return;
+			if (__set_blocks(n1, n1->keys + n2->keys,
+					 b->c) > btree_blocks(new_nodes[i]))
+				goto out_nocoalesce;
 
 			keys = n2->keys;
+			/* Take the key of the node we're getting rid of */
 			last = &r->b->key;
-		} else
-			for (k = n2->start;
-			     k < end(n2);
-			     k = bkey_next(k)) {
-				if (__set_blocks(n1, n1->keys + keys +
-						 bkey_u64s(k), b->c) > blocks)
-					break;
-
-				last = k;
-				keys += bkey_u64s(k);
-			}
+		}
 
 		BUG_ON(__set_blocks(n1, n1->keys + keys,
-				    b->c) > btree_blocks(r[i].b));
+				    b->c) > btree_blocks(new_nodes[i]));
 
-		if (last) {
-			bkey_copy_key(&r[i].b->key, last);
-			bkey_copy_key(r[i].k, last);
-		}
+		if (last)
+			bkey_copy_key(&new_nodes[i]->key, last);
 
 		memcpy(end(n1),
 		       n2->start,
 		       (void *) node(n2, keys) - (void *) n2->start);
 
 		n1->keys += keys;
+		r[i].keys = n1->keys;
 
 		memmove(n2->start,
 			node(n2, keys),
@@ -1337,93 +1310,175 @@ static void btree_gc_coalesce(struct btree *b, struct gc_stat *gc,
 
 		n2->keys -= keys;
 
-		r[i].keys	= n1->keys;
-		r[i - 1].keys	= n2->keys;
+		if (bch_keylist_realloc(keylist,
+					KEY_PTRS(&new_nodes[i]->key), b->c))
+			goto out_nocoalesce;
+
+		bch_btree_node_write(new_nodes[i], &cl);
+		bch_keylist_add(keylist, &new_nodes[i]->key);
 	}
 
-	btree_node_free(r->b);
-	up_write(&r->b->lock);
+	for (i = 0; i < nodes; i++) {
+		if (bch_keylist_realloc(keylist, KEY_PTRS(&r[i].b->key), b->c))
+			goto out_nocoalesce;
 
-	trace_bcache_btree_gc_coalesce(nodes);
+		make_btree_freeing_key(r[i].b, keylist->top);
+		bch_keylist_push(keylist);
+	}
+
+	/* We emptied out this node */
+	BUG_ON(new_nodes[0]->sets->data->keys);
+	btree_node_free(new_nodes[0]);
+	rw_unlock(true, new_nodes[0]);
 
+	closure_sync(&cl);
+
+	for (i = 0; i < nodes; i++) {
+		btree_node_free(r[i].b);
+		rw_unlock(true, r[i].b);
+
+		r[i].b = new_nodes[i];
+	}
+
+	bch_btree_insert_node(b, op, keylist, NULL, NULL);
+	BUG_ON(!bch_keylist_empty(keylist));
+
+	memmove(r, r + 1, sizeof(r[0]) * (nodes - 1));
+	r[nodes - 1].b = ERR_PTR(-EINTR);
+
+	trace_bcache_btree_gc_coalesce(nodes);
 	gc->nodes--;
-	nodes--;
 
-	memmove(&r[0], &r[1], sizeof(struct gc_merge_info) * nodes);
-	memset(&r[nodes], 0, sizeof(struct gc_merge_info));
+	/* Invalidated our iterator */
+	return -EINTR;
+
+out_nocoalesce:
+	closure_sync(&cl);
+
+	while ((k = bch_keylist_pop(keylist)))
+		if (!bkey_cmp(k, &ZERO_KEY))
+			atomic_dec(&b->c->prio_blocked);
+
+	for (i = 0; i < nodes; i++)
+		if (!IS_ERR_OR_NULL(new_nodes[i])) {
+			btree_node_free(new_nodes[i]);
+			rw_unlock(true, new_nodes[i]);
+		}
+	return 0;
 }
 
-static int btree_gc_recurse(struct btree *b, struct btree_op *op,
-			    struct closure *writes, struct gc_stat *gc)
+static unsigned btree_gc_count_keys(struct btree *b)
 {
-	void write(struct btree *r)
-	{
-		if (!r->written || btree_node_dirty(r))
-			bch_btree_node_write(r, writes);
+	struct bkey *k;
+	struct btree_iter iter;
+	unsigned ret = 0;
 
-		up_write(&r->lock);
-	}
+	for_each_key_filter(b, k, &iter, bch_ptr_bad)
+		ret += bkey_u64s(k);
 
-	int ret = 0, stale;
+	return ret;
+}
+
+static int btree_gc_recurse(struct btree *b, struct btree_op *op,
+			    struct closure *writes, struct gc_stat *gc)
+{
 	unsigned i;
+	int ret = 0;
+	bool should_rewrite;
+	struct btree *n;
+	struct bkey *k;
+	struct keylist keys;
+	struct btree_iter iter;
 	struct gc_merge_info r[GC_MERGE_NODES];
+	struct gc_merge_info *last = r + GC_MERGE_NODES - 1;
 
-	memset(r, 0, sizeof(r));
+	bch_keylist_init(&keys);
+	bch_btree_iter_init(b, &iter, &b->c->gc_done);
 
-	while ((r->k = bch_next_recurse_key(b, &b->c->gc_done))) {
-		r->b = bch_btree_node_get(b->c, r->k, b->level - 1, true);
+	for (i = 0; i < GC_MERGE_NODES; i++)
+		r[i].b = ERR_PTR(-EINTR);
 
-		if (IS_ERR(r->b)) {
-			ret = PTR_ERR(r->b);
-			break;
+	while (1) {
+		k = bch_btree_iter_next_filter(&iter, b, bch_ptr_bad);
+		if (k) {
+			r->b = bch_btree_node_get(b->c, k, b->level - 1, true);
+			if (IS_ERR(r->b)) {
+				ret = PTR_ERR(r->b);
+				break;
+			}
+
+			r->keys = btree_gc_count_keys(r->b);
+
+			ret = btree_gc_coalesce(b, op, &keys, gc, r);
+			if (ret)
+				break;
 		}
 
-		r->keys	= 0;
-		stale = btree_gc_mark_node(r->b, &r->keys, gc);
+		if (!last->b)
+			break;
 
-		if (!b->written &&
-		    (r->b->level || stale > 10 ||
-		     b->c->gc_always_rewrite))
-			r->b = btree_gc_alloc(r->b, r->k);
+		if (!IS_ERR(last->b)) {
+			should_rewrite = btree_gc_mark_node(last->b, gc);
+			if (should_rewrite) {
+				n = btree_node_alloc_replacement(last->b);
 
-		if (r->b->level)
-			ret = btree_gc_recurse(r->b, op, writes, gc);
+				if (!IS_ERR_OR_NULL(n)) {
+					bch_btree_node_write_sync(n);
+					bch_keylist_add(&keys, &n->key);
 
-		if (ret) {
-			write(r->b);
-			break;
-		}
+					make_btree_freeing_key(last->b,
+							       keys.top);
+					bch_keylist_push(&keys);
+
+					btree_node_free(last->b);
 
-		bkey_copy_key(&b->c->gc_done, r->k);
+					bch_btree_insert_node(b, op, &keys,
+							      NULL, NULL);
+					BUG_ON(!bch_keylist_empty(&keys));
 
-		if (!b->written)
-			btree_gc_coalesce(b, gc, r);
+					rw_unlock(true, last->b);
+					last->b = n;
+
+					/* Invalidated our iterator */
+					ret = -EINTR;
+					break;
+				}
+			}
 
-		if (r[GC_MERGE_NODES - 1].b)
-			write(r[GC_MERGE_NODES - 1].b);
+			if (last->b->level) {
+				ret = btree_gc_recurse(last->b, op, writes, gc);
+				if (ret)
+					break;
+			}
 
-		memmove(&r[1], &r[0],
-			sizeof(struct gc_merge_info) * (GC_MERGE_NODES - 1));
+			bkey_copy_key(&b->c->gc_done, &last->b->key);
+
+			/*
+			 * Must flush leaf nodes before gc ends, since replace
+			 * operations aren't journalled
+			 */
+			if (btree_node_dirty(last->b))
+				bch_btree_node_write(last->b, writes);
+			rw_unlock(true, last->b);
+		}
+
+		memmove(r + 1, r, sizeof(r[0]) * (GC_MERGE_NODES - 1));
+		r->b = NULL;
 
-		/* When we've got incremental GC working, we'll want to do
-		 * if (should_resched())
-		 *	return -EAGAIN;
-		 */
-		cond_resched();
-#if 0
 		if (need_resched()) {
 			ret = -EAGAIN;
 			break;
 		}
-#endif
 	}
 
-	for (i = 1; i < GC_MERGE_NODES && r[i].b; i++)
-		write(r[i].b);
+	for (i = 0; i < GC_MERGE_NODES; i++)
+		if (!IS_ERR_OR_NULL(r[i].b)) {
+			if (btree_node_dirty(r[i].b))
+				bch_btree_node_write(r[i].b, writes);
+			rw_unlock(true, r[i].b);
+		}
 
-	/* Might have freed some children, must remove their keys */
-	if (!b->written)
-		bch_btree_sort(b);
+	bch_keylist_free(&keys);
 
 	return ret;
 }
@@ -1432,27 +1487,31 @@ static int bch_btree_gc_root(struct btree *b, struct btree_op *op,
 			     struct closure *writes, struct gc_stat *gc)
 {
 	struct btree *n = NULL;
-	unsigned keys = 0;
-	int ret = 0, stale = btree_gc_mark_node(b, &keys, gc);
+	int ret = 0;
+	bool should_rewrite;
 
-	if (b->level || stale > 10)
+	should_rewrite = btree_gc_mark_node(b, gc);
+	if (should_rewrite) {
 		n = btree_node_alloc_replacement(b);
 
-	if (!IS_ERR_OR_NULL(n))
-		swap(b, n);
-
-	if (b->level)
-		ret = btree_gc_recurse(b, op, writes, gc);
+		if (!IS_ERR_OR_NULL(n)) {
+			bch_btree_node_write_sync(n);
+			bch_btree_set_root(n);
+			btree_node_free(b);
+			rw_unlock(true, n);
 
-	if (!b->written || btree_node_dirty(b))
-		bch_btree_node_write_sync(b);
+			return -EINTR;
+		}
+	}
 
-	if (!IS_ERR_OR_NULL(n)) {
-		bch_btree_set_root(b);
-		btree_node_free(n);
-		rw_unlock(true, b);
+	if (b->level) {
+		ret = btree_gc_recurse(b, op, writes, gc);
+		if (ret)
+			return ret;
 	}
 
+	bkey_copy_key(&b->c->gc_done, &b->key);
+
 	return ret;
 }
 
@@ -1550,29 +1609,20 @@ static void bch_btree_gc(struct cache_set *c)
 
 	btree_gc_start(c);
 
-	atomic_inc(&c->prio_blocked);
-
-	ret = btree_root(gc_root, c, &op, &writes, &stats);
-	closure_sync(&writes);
-
-	if (ret) {
-		pr_warn("gc failed!");
-		return;
-	}
+	do {
+		ret = btree_root(gc_root, c, &op, &writes, &stats);
+		closure_sync(&writes);
 
-	/* Possibly wait for new UUIDs or whatever to hit disk */
-	bch_journal_meta(c, &writes);
-	closure_sync(&writes);
+		if (ret && ret != -EAGAIN)
+			pr_warn("gc failed!");
+	} while (ret);
 
 	available = bch_btree_gc_finish(c);
-
-	atomic_dec(&c->prio_blocked);
 	wake_up_allocators(c);
 
 	bch_time_stats_update(&c->btree_gc_time, start_time);
 
 	stats.key_bytes *= sizeof(uint64_t);
-	stats.dirty	<<= 9;
 	stats.data	<<= 9;
 	stats.in_use	= (c->nbuckets - available) * 100 / c->nbuckets;
 	memcpy(&c->gc_stats, &stats, sizeof(struct gc_stat));
@@ -1585,14 +1635,28 @@ static void bch_btree_gc(struct cache_set *c)
 static int bch_gc_thread(void *arg)
 {
 	struct cache_set *c = arg;
+	struct cache *ca;
+	unsigned i;
 
 	while (1) {
+again:
 		bch_btree_gc(c);
 
 		set_current_state(TASK_INTERRUPTIBLE);
 		if (kthread_should_stop())
 			break;
 
+		mutex_lock(&c->bucket_lock);
+
+		for_each_cache(ca, c, i)
+			if (ca->invalidate_needs_gc) {
+				mutex_unlock(&c->bucket_lock);
+				set_current_state(TASK_RUNNING);
+				goto again;
+			}
+
+		mutex_unlock(&c->bucket_lock);
+
 		try_to_freeze();
 		schedule();
 	}
@@ -2083,8 +2147,6 @@ static int bch_btree_insert_node(struct btree *b, struct btree_op *op,
 
 	bch_keylist_init(&split_keys);
 
-	BUG_ON(b->level);
-
 	do {
 		BUG_ON(b->level && replace_key);
 
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index e11bb8571d24..b5a46affe8eb 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -201,7 +201,7 @@ static inline bool bkey_written(struct btree *b, struct bkey *k)
 
 static inline void set_gc_sectors(struct cache_set *c)
 {
-	atomic_set(&c->sectors_to_gc, c->sb.bucket_size * c->nbuckets / 8);
+	atomic_set(&c->sectors_to_gc, c->sb.bucket_size * c->nbuckets / 16);
 }
 
 static inline struct bkey *bch_btree_iter_init(struct btree *b,
diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
index 9687771ec6f3..c5f73e34d016 100644
--- a/drivers/md/bcache/sysfs.c
+++ b/drivers/md/bcache/sysfs.c
@@ -489,7 +489,6 @@ lock_root:
 
 	sysfs_print(btree_used_percent,	btree_used(c));
 	sysfs_print(btree_nodes,	c->gc_stats.nodes);
-	sysfs_hprint(dirty_data,	c->gc_stats.dirty);
 	sysfs_hprint(average_key_size,	average_key_size(c));
 
 	sysfs_print(cache_read_races,
@@ -642,7 +641,6 @@ static struct attribute *bch_cache_set_files[] = {
 	&sysfs_cache_available_percent,
 
 	&sysfs_average_key_size,
-	&sysfs_dirty_data,
 
 	&sysfs_errors,
 	&sysfs_io_error_limit,
-- 
cgit 


From bc9389eefe479b7b7b323c2729b61a7155d2d0ea Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Tue, 10 Sep 2013 19:07:35 -0700
Subject: bcache: Avoid deadlocking in garbage collection

Not a complete fix - we could still deadlock if btree_insert_node() has
to split...

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/btree.c | 21 +++++++++++----------
 drivers/md/bcache/btree.h |  2 +-
 drivers/md/bcache/super.c |  2 +-
 3 files changed, 13 insertions(+), 12 deletions(-)

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 7d283d217438..bf8f5174b253 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -1059,14 +1059,14 @@ static void btree_node_free(struct btree *b)
 	mutex_unlock(&b->c->bucket_lock);
 }
 
-struct btree *bch_btree_node_alloc(struct cache_set *c, int level)
+struct btree *bch_btree_node_alloc(struct cache_set *c, int level, bool wait)
 {
 	BKEY_PADDED(key) k;
 	struct btree *b = ERR_PTR(-EAGAIN);
 
 	mutex_lock(&c->bucket_lock);
 retry:
-	if (__bch_bucket_alloc_set(c, WATERMARK_METADATA, &k.key, 1, true))
+	if (__bch_bucket_alloc_set(c, WATERMARK_METADATA, &k.key, 1, wait))
 		goto err;
 
 	bkey_put(c, &k.key);
@@ -1098,9 +1098,9 @@ err:
 	return b;
 }
 
-static struct btree *btree_node_alloc_replacement(struct btree *b)
+static struct btree *btree_node_alloc_replacement(struct btree *b, bool wait)
 {
-	struct btree *n = bch_btree_node_alloc(b->c, b->level);
+	struct btree *n = bch_btree_node_alloc(b->c, b->level, wait);
 	if (!IS_ERR_OR_NULL(n))
 		bch_btree_sort_into(b, n);
 
@@ -1250,7 +1250,7 @@ static int btree_gc_coalesce(struct btree *b, struct btree_op *op,
 		return 0;
 
 	for (i = 0; i < nodes; i++) {
-		new_nodes[i] = btree_node_alloc_replacement(r[i].b);
+		new_nodes[i] = btree_node_alloc_replacement(r[i].b, false);
 		if (IS_ERR_OR_NULL(new_nodes[i]))
 			goto out_nocoalesce;
 	}
@@ -1420,7 +1420,8 @@ static int btree_gc_recurse(struct btree *b, struct btree_op *op,
 		if (!IS_ERR(last->b)) {
 			should_rewrite = btree_gc_mark_node(last->b, gc);
 			if (should_rewrite) {
-				n = btree_node_alloc_replacement(last->b);
+				n = btree_node_alloc_replacement(last->b,
+								 false);
 
 				if (!IS_ERR_OR_NULL(n)) {
 					bch_btree_node_write_sync(n);
@@ -1492,7 +1493,7 @@ static int bch_btree_gc_root(struct btree *b, struct btree_op *op,
 
 	should_rewrite = btree_gc_mark_node(b, gc);
 	if (should_rewrite) {
-		n = btree_node_alloc_replacement(b);
+		n = btree_node_alloc_replacement(b, false);
 
 		if (!IS_ERR_OR_NULL(n)) {
 			bch_btree_node_write_sync(n);
@@ -2038,7 +2039,7 @@ static int btree_split(struct btree *b, struct btree_op *op,
 
 	closure_init_stack(&cl);
 
-	n1 = btree_node_alloc_replacement(b);
+	n1 = btree_node_alloc_replacement(b, true);
 	if (IS_ERR(n1))
 		goto err;
 
@@ -2049,12 +2050,12 @@ static int btree_split(struct btree *b, struct btree_op *op,
 
 		trace_bcache_btree_node_split(b, n1->sets[0].data->keys);
 
-		n2 = bch_btree_node_alloc(b->c, b->level);
+		n2 = bch_btree_node_alloc(b->c, b->level, true);
 		if (IS_ERR(n2))
 			goto err_free1;
 
 		if (!b->parent) {
-			n3 = bch_btree_node_alloc(b->c, b->level + 1);
+			n3 = bch_btree_node_alloc(b->c, b->level + 1, true);
 			if (IS_ERR(n3))
 				goto err_free2;
 		}
diff --git a/drivers/md/bcache/btree.h b/drivers/md/bcache/btree.h
index b5a46affe8eb..767e75570896 100644
--- a/drivers/md/bcache/btree.h
+++ b/drivers/md/bcache/btree.h
@@ -271,7 +271,7 @@ void bch_btree_node_read(struct btree *);
 void bch_btree_node_write(struct btree *, struct closure *);
 
 void bch_btree_set_root(struct btree *);
-struct btree *bch_btree_node_alloc(struct cache_set *, int);
+struct btree *bch_btree_node_alloc(struct cache_set *, int, bool);
 struct btree *bch_btree_node_get(struct cache_set *, struct bkey *, int, bool);
 
 int bch_btree_insert_check_key(struct btree *, struct btree_op *,
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 7ab926d94d81..e21200e98da6 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1601,7 +1601,7 @@ static void run_cache_set(struct cache_set *c)
 			goto err;
 
 		err = "cannot allocate new btree root";
-		c->root = bch_btree_node_alloc(c, 0);
+		c->root = bch_btree_node_alloc(c, 0, true);
 		if (IS_ERR_OR_NULL(c->root))
 			goto err;
 
-- 
cgit 


From 50310164bcd789eb3690f45a9baf8a507bf93358 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Tue, 10 Sep 2013 17:18:59 -0700
Subject: bcache: Kill bch_next_recurse_key()

This dates from before the btree iterator, and now it's finally gone

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bset.c  |  8 --------
 drivers/md/bcache/bset.h  |  1 -
 drivers/md/bcache/btree.c | 23 +++++++++++------------
 3 files changed, 11 insertions(+), 21 deletions(-)

diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c
index b615348c45fc..b0fe0dc59ee6 100644
--- a/drivers/md/bcache/bset.c
+++ b/drivers/md/bcache/bset.c
@@ -952,14 +952,6 @@ struct bkey *bch_btree_iter_next_filter(struct btree_iter *iter,
 	return ret;
 }
 
-struct bkey *bch_next_recurse_key(struct btree *b, struct bkey *search)
-{
-	struct btree_iter iter;
-
-	bch_btree_iter_init(b, &iter, search);
-	return bch_btree_iter_next_filter(&iter, b, bch_ptr_bad);
-}
-
 /* Mergesort */
 
 static void sort_key_next(struct btree_iter *iter,
diff --git a/drivers/md/bcache/bset.h b/drivers/md/bcache/bset.h
index bc9975526aa1..1d3c24f9fa0e 100644
--- a/drivers/md/bcache/bset.h
+++ b/drivers/md/bcache/bset.h
@@ -303,7 +303,6 @@ static inline bool ptr_available(struct cache_set *c, const struct bkey *k,
 
 typedef bool (*ptr_filter_fn)(struct btree *, const struct bkey *);
 
-struct bkey *bch_next_recurse_key(struct btree *, struct bkey *);
 struct bkey *bch_btree_iter_next(struct btree_iter *);
 struct bkey *bch_btree_iter_next_filter(struct btree_iter *,
 					struct btree *, ptr_filter_fn);
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index bf8f5174b253..adc5bb0d8e92 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -1680,9 +1680,9 @@ int bch_gc_thread_start(struct cache_set *c)
 static int bch_btree_check_recurse(struct btree *b, struct btree_op *op,
 				   unsigned long **seen)
 {
-	int ret;
+	int ret = 0;
 	unsigned i;
-	struct bkey *k;
+	struct bkey *k, *p = NULL;
 	struct bucket *g;
 	struct btree_iter iter;
 
@@ -1709,19 +1709,18 @@ static int bch_btree_check_recurse(struct btree *b, struct btree_op *op,
 	}
 
 	if (b->level) {
-		k = bch_next_recurse_key(b, &ZERO_KEY);
+		bch_btree_iter_init(b, &iter, NULL);
 
-		while (k) {
-			struct bkey *p = bch_next_recurse_key(b, k);
-			if (p)
-				btree_node_prefetch(b->c, p, b->level - 1);
+		do {
+			k = bch_btree_iter_next_filter(&iter, b, bch_ptr_bad);
+			if (k)
+				btree_node_prefetch(b->c, k, b->level - 1);
 
-			ret = btree(check_recurse, k, b, op, seen);
-			if (ret)
-				return ret;
+			if (p)
+				ret = btree(check_recurse, p, b, op, seen);
 
-			k = p;
-		}
+			p = k;
+		} while (p && !ret);
 	}
 
 	return 0;
-- 
cgit 


From 8aee122071a69ca6fa3314da7713bdf0b61dc07c Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Tue, 30 Jul 2013 22:34:40 -0700
Subject: bcache: Kill sequential_merge option

It never really made sense to expose this, so just kill it.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bcache.h  |  1 -
 drivers/md/bcache/request.c | 43 ++++++++++++++++++-------------------------
 drivers/md/bcache/super.c   |  1 -
 drivers/md/bcache/sysfs.c   |  4 ----
 4 files changed, 18 insertions(+), 31 deletions(-)

diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index d6970a651e42..322735547eab 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -364,7 +364,6 @@ struct cached_dev {
 	unsigned		sequential_cutoff;
 	unsigned		readahead;
 
-	unsigned		sequential_merge:1;
 	unsigned		verify:1;
 
 	unsigned		partial_stripes_expensive:1;
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 932300f18973..f645da61189a 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -510,6 +510,7 @@ static bool check_should_bypass(struct cached_dev *dc, struct bio *bio)
 	unsigned mode = cache_mode(dc, bio);
 	unsigned sectors, congested = bch_get_congested(c);
 	struct task_struct *task = current;
+	struct io *i;
 
 	if (atomic_read(&dc->disk.detaching) ||
 	    c->gc_stats.in_use > CUTOFF_CACHE_ADD ||
@@ -536,38 +537,30 @@ static bool check_should_bypass(struct cached_dev *dc, struct bio *bio)
 	    (bio->bi_rw & REQ_SYNC))
 		goto rescale;
 
-	if (dc->sequential_merge) {
-		struct io *i;
+	spin_lock(&dc->io_lock);
 
-		spin_lock(&dc->io_lock);
+	hlist_for_each_entry(i, iohash(dc, bio->bi_sector), hash)
+		if (i->last == bio->bi_sector &&
+		    time_before(jiffies, i->jiffies))
+			goto found;
 
-		hlist_for_each_entry(i, iohash(dc, bio->bi_sector), hash)
-			if (i->last == bio->bi_sector &&
-			    time_before(jiffies, i->jiffies))
-				goto found;
+	i = list_first_entry(&dc->io_lru, struct io, lru);
 
-		i = list_first_entry(&dc->io_lru, struct io, lru);
-
-		add_sequential(task);
-		i->sequential = 0;
+	add_sequential(task);
+	i->sequential = 0;
 found:
-		if (i->sequential + bio->bi_size > i->sequential)
-			i->sequential	+= bio->bi_size;
-
-		i->last			 = bio_end_sector(bio);
-		i->jiffies		 = jiffies + msecs_to_jiffies(5000);
-		task->sequential_io	 = i->sequential;
+	if (i->sequential + bio->bi_size > i->sequential)
+		i->sequential	+= bio->bi_size;
 
-		hlist_del(&i->hash);
-		hlist_add_head(&i->hash, iohash(dc, i->last));
-		list_move_tail(&i->lru, &dc->io_lru);
+	i->last			 = bio_end_sector(bio);
+	i->jiffies		 = jiffies + msecs_to_jiffies(5000);
+	task->sequential_io	 = i->sequential;
 
-		spin_unlock(&dc->io_lock);
-	} else {
-		task->sequential_io = bio->bi_size;
+	hlist_del(&i->hash);
+	hlist_add_head(&i->hash, iohash(dc, i->last));
+	list_move_tail(&i->lru, &dc->io_lru);
 
-		add_sequential(task);
-	}
+	spin_unlock(&dc->io_lock);
 
 	sectors = max(task->sequential_io,
 		      task->sequential_io_avg) >> 9;
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index e21200e98da6..041dd9d1d882 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1079,7 +1079,6 @@ static int cached_dev_init(struct cached_dev *dc, unsigned block_size)
 	spin_lock_init(&dc->io_lock);
 	bch_cache_accounting_init(&dc->accounting, &dc->disk.cl);
 
-	dc->sequential_merge		= true;
 	dc->sequential_cutoff		= 4 << 20;
 
 	for (io = dc->io; io < dc->io + RECENT_IO; io++) {
diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
index c5f73e34d016..4b672449ffaf 100644
--- a/drivers/md/bcache/sysfs.c
+++ b/drivers/md/bcache/sysfs.c
@@ -72,7 +72,6 @@ rw_attribute(congested_read_threshold_us);
 rw_attribute(congested_write_threshold_us);
 
 rw_attribute(sequential_cutoff);
-rw_attribute(sequential_merge);
 rw_attribute(data_csum);
 rw_attribute(cache_mode);
 rw_attribute(writeback_metadata);
@@ -161,7 +160,6 @@ SHOW(__bch_cached_dev)
 	sysfs_hprint(stripe_size,	dc->disk.stripe_size << 9);
 	var_printf(partial_stripes_expensive,	"%u");
 
-	var_printf(sequential_merge,	"%i");
 	var_hprint(sequential_cutoff);
 	var_hprint(readahead);
 
@@ -207,7 +205,6 @@ STORE(__cached_dev)
 			    dc->writeback_rate_p_term_inverse, 1, INT_MAX);
 	d_strtoul(writeback_rate_d_smooth);
 
-	d_strtoul(sequential_merge);
 	d_strtoi_h(sequential_cutoff);
 	d_strtoi_h(readahead);
 
@@ -319,7 +316,6 @@ static struct attribute *bch_cached_dev_files[] = {
 	&sysfs_stripe_size,
 	&sysfs_partial_stripes_expensive,
 	&sysfs_sequential_cutoff,
-	&sysfs_sequential_merge,
 	&sysfs_clear_stats,
 	&sysfs_running,
 	&sysfs_state,
-- 
cgit 


From 65d22e911bfc4f46cda4751f1b1926b43c316c14 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 31 Jul 2013 00:03:54 -0700
Subject: bcache: Move spinlock into struct time_stats

Minor cleanup.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bcache.h |  2 --
 drivers/md/bcache/bset.c   |  7 +------
 drivers/md/bcache/btree.c  |  3 ---
 drivers/md/bcache/super.c  |  8 ++++++--
 drivers/md/bcache/util.c   | 12 +++++++++---
 drivers/md/bcache/util.h   |  1 +
 6 files changed, 17 insertions(+), 16 deletions(-)

diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index 322735547eab..816d07958fac 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -666,11 +666,9 @@ struct cache_set {
 	unsigned		congested_read_threshold_us;
 	unsigned		congested_write_threshold_us;
 
-	spinlock_t		sort_time_lock;
 	struct time_stats	sort_time;
 	struct time_stats	btree_gc_time;
 	struct time_stats	btree_split_time;
-	spinlock_t		btree_read_time_lock;
 	struct time_stats	btree_read_time;
 	struct time_stats	try_harder_time;
 
diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c
index b0fe0dc59ee6..14573391206b 100644
--- a/drivers/md/bcache/bset.c
+++ b/drivers/md/bcache/bset.c
@@ -1077,11 +1077,8 @@ static void __btree_sort(struct btree *b, struct btree_iter *iter,
 	if (b->written)
 		bset_build_written_tree(b);
 
-	if (!start) {
-		spin_lock(&b->c->sort_time_lock);
+	if (!start)
 		bch_time_stats_update(&b->c->sort_time, start_time);
-		spin_unlock(&b->c->sort_time_lock);
-	}
 }
 
 void bch_btree_sort_partial(struct btree *b, unsigned start)
@@ -1128,9 +1125,7 @@ void bch_btree_sort_into(struct btree *b, struct btree *new)
 
 	btree_mergesort(b, new->sets->data, &iter, false, true);
 
-	spin_lock(&b->c->sort_time_lock);
 	bch_time_stats_update(&b->c->sort_time, start_time);
-	spin_unlock(&b->c->sort_time_lock);
 
 	bkey_copy_key(&new->key, &b->key);
 	new->sets->size = 0;
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index adc5bb0d8e92..1a7530cd1407 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -317,10 +317,7 @@ void bch_btree_node_read(struct btree *b)
 		goto err;
 
 	bch_btree_node_read_done(b);
-
-	spin_lock(&b->c->btree_read_time_lock);
 	bch_time_stats_update(&b->c->btree_read_time, start_time);
-	spin_unlock(&b->c->btree_read_time_lock);
 
 	return;
 err:
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 041dd9d1d882..4813ef67cef5 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1435,9 +1435,13 @@ struct cache_set *bch_cache_set_alloc(struct cache_sb *sb)
 	init_waitqueue_head(&c->try_wait);
 	init_waitqueue_head(&c->bucket_wait);
 	closure_init_unlocked(&c->uuid_write);
-	spin_lock_init(&c->sort_time_lock);
 	mutex_init(&c->sort_lock);
-	spin_lock_init(&c->btree_read_time_lock);
+
+	spin_lock_init(&c->sort_time.lock);
+	spin_lock_init(&c->btree_gc_time.lock);
+	spin_lock_init(&c->btree_split_time.lock);
+	spin_lock_init(&c->btree_read_time.lock);
+	spin_lock_init(&c->try_harder_time.lock);
 
 	bch_moving_init_cache_set(c);
 
diff --git a/drivers/md/bcache/util.c b/drivers/md/bcache/util.c
index 420dad545c7d..462214eeacbe 100644
--- a/drivers/md/bcache/util.c
+++ b/drivers/md/bcache/util.c
@@ -168,10 +168,14 @@ int bch_parse_uuid(const char *s, char *uuid)
 
 void bch_time_stats_update(struct time_stats *stats, uint64_t start_time)
 {
-	uint64_t now		= local_clock();
-	uint64_t duration	= time_after64(now, start_time)
+	uint64_t now, duration, last;
+
+	spin_lock(&stats->lock);
+
+	now		= local_clock();
+	duration	= time_after64(now, start_time)
 		? now - start_time : 0;
-	uint64_t last		= time_after64(now, stats->last)
+	last		= time_after64(now, stats->last)
 		? now - stats->last : 0;
 
 	stats->max_duration = max(stats->max_duration, duration);
@@ -188,6 +192,8 @@ void bch_time_stats_update(struct time_stats *stats, uint64_t start_time)
 	}
 
 	stats->last = now ?: 1;
+
+	spin_unlock(&stats->lock);
 }
 
 /**
diff --git a/drivers/md/bcache/util.h b/drivers/md/bcache/util.h
index 8ce5aab55962..362c4b3f8b4a 100644
--- a/drivers/md/bcache/util.h
+++ b/drivers/md/bcache/util.h
@@ -378,6 +378,7 @@ ssize_t bch_snprint_string_list(char *buf, size_t size, const char * const list[
 ssize_t bch_read_string_list(const char *buf, const char * const list[]);
 
 struct time_stats {
+	spinlock_t	lock;
 	/*
 	 * all fields are in nanoseconds, averages are ewmas stored left shifted
 	 * by 8
-- 
cgit 


From 17e21a9f248d3d330acdfb2405c23b8d84c9c23a Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Fri, 26 Jul 2013 12:32:38 -0700
Subject: bcache: Have btree_split() insert into parent directly

The flow control in btree_insert_node() was... fragile... before,
this'll use more stack (but since our btrees are never more than depth
1, that shouldn't matter) and it should be significantly clearer and
less fragile.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/btree.c | 85 ++++++++++++++++++++++-------------------------
 1 file changed, 39 insertions(+), 46 deletions(-)

diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 1a7530cd1407..6def7c9a1228 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -2025,15 +2025,16 @@ static bool bch_btree_insert_keys(struct btree *b, struct btree_op *op,
 
 static int btree_split(struct btree *b, struct btree_op *op,
 		       struct keylist *insert_keys,
-		       struct keylist *parent_keys,
 		       struct bkey *replace_key)
 {
 	bool split;
 	struct btree *n1, *n2 = NULL, *n3 = NULL;
 	uint64_t start_time = local_clock();
 	struct closure cl;
+	struct keylist parent_keys;
 
 	closure_init_stack(&cl);
+	bch_keylist_init(&parent_keys);
 
 	n1 = btree_node_alloc_replacement(b, true);
 	if (IS_ERR(n1))
@@ -2078,7 +2079,7 @@ static int btree_split(struct btree *b, struct btree_op *op,
 
 		bkey_copy_key(&n2->key, &b->key);
 
-		bch_keylist_add(parent_keys, &n2->key);
+		bch_keylist_add(&parent_keys, &n2->key);
 		bch_btree_node_write(n2, &cl);
 		rw_unlock(true, n2);
 	} else {
@@ -2087,33 +2088,39 @@ static int btree_split(struct btree *b, struct btree_op *op,
 		bch_btree_insert_keys(n1, op, insert_keys, replace_key);
 	}
 
-	bch_keylist_add(parent_keys, &n1->key);
+	bch_keylist_add(&parent_keys, &n1->key);
 	bch_btree_node_write(n1, &cl);
 
 	if (n3) {
 		/* Depth increases, make a new root */
-
 		bkey_copy_key(&n3->key, &MAX_KEY);
-		bch_btree_insert_keys(n3, op, parent_keys, NULL);
+		bch_btree_insert_keys(n3, op, &parent_keys, NULL);
 		bch_btree_node_write(n3, &cl);
 
 		closure_sync(&cl);
 		bch_btree_set_root(n3);
 		rw_unlock(true, n3);
+
+		btree_node_free(b);
 	} else if (!b->parent) {
 		/* Root filled up but didn't need to be split */
-
-		bch_keylist_reset(parent_keys);
 		closure_sync(&cl);
 		bch_btree_set_root(n1);
+
+		btree_node_free(b);
 	} else {
+		/* Split a non root node */
 		closure_sync(&cl);
-		make_btree_freeing_key(b, parent_keys->top);
-		bch_keylist_push(parent_keys);
+		make_btree_freeing_key(b, parent_keys.top);
+		bch_keylist_push(&parent_keys);
+
+		btree_node_free(b);
+
+		bch_btree_insert_node(b->parent, op, &parent_keys, NULL, NULL);
+		BUG_ON(!bch_keylist_empty(&parent_keys));
 	}
 
 	rw_unlock(true, n1);
-	btree_node_free(b);
 
 	bch_time_stats_update(&b->c->btree_split_time, start_time);
 
@@ -2139,46 +2146,32 @@ static int bch_btree_insert_node(struct btree *b, struct btree_op *op,
 				 atomic_t *journal_ref,
 				 struct bkey *replace_key)
 {
-	int ret = 0;
-	struct keylist split_keys;
-
-	bch_keylist_init(&split_keys);
+	BUG_ON(b->level && replace_key);
 
-	do {
-		BUG_ON(b->level && replace_key);
-
-		if (should_split(b)) {
-			if (current->bio_list) {
-				op->lock = b->c->root->level + 1;
-				ret = -EAGAIN;
-			} else if (op->lock <= b->c->root->level) {
-				op->lock = b->c->root->level + 1;
-				ret = -EINTR;
-			} else {
-				struct btree *parent = b->parent;
-
-				ret = btree_split(b, op, insert_keys,
-						  &split_keys, replace_key);
-				insert_keys = &split_keys;
-				replace_key = NULL;
-				b = parent;
-				if (!ret)
-					ret = -EINTR;
-			}
+	if (should_split(b)) {
+		if (current->bio_list) {
+			op->lock = b->c->root->level + 1;
+			return -EAGAIN;
+		} else if (op->lock <= b->c->root->level) {
+			op->lock = b->c->root->level + 1;
+			return -EINTR;
 		} else {
-			BUG_ON(write_block(b) != b->sets[b->nsets].data);
-
-			if (bch_btree_insert_keys(b, op, insert_keys,
-						  replace_key)) {
-				if (!b->level)
-					bch_btree_leaf_dirty(b, journal_ref);
-				else
-					bch_btree_node_write_sync(b);
-			}
+			/* Invalidated all iterators */
+			return btree_split(b, op, insert_keys, replace_key) ?:
+				-EINTR;
 		}
-	} while (!bch_keylist_empty(&split_keys));
+	} else {
+		BUG_ON(write_block(b) != b->sets[b->nsets].data);
 
-	return ret;
+		if (bch_btree_insert_keys(b, op, insert_keys, replace_key)) {
+			if (!b->level)
+				bch_btree_leaf_dirty(b, journal_ref);
+			else
+				bch_btree_node_write_sync(b);
+		}
+
+		return 0;
+	}
 }
 
 int bch_btree_insert_check_key(struct btree *b, struct btree_op *op,
-- 
cgit 


From 48a915a87f0bd98c3d68d029acf223a2e5116f07 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Thu, 31 Oct 2013 15:43:22 -0700
Subject: bcache: Better full stripe scanning

The old scanning-by-stripe code burned too much CPU, this should be
better.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bcache.h    |  5 ++-
 drivers/md/bcache/btree.c     | 19 +++++----
 drivers/md/bcache/super.c     | 17 +++++++-
 drivers/md/bcache/writeback.c | 94 ++++++++++++++++++++++++++-----------------
 drivers/md/bcache/writeback.h | 21 ++++++----
 include/trace/events/bcache.h | 29 +++++++++++++
 6 files changed, 128 insertions(+), 57 deletions(-)

diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index 816d07958fac..ab0b2150fed6 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -237,7 +237,7 @@ struct keybuf {
 
 	struct rb_root		keys;
 
-#define KEYBUF_NR		100
+#define KEYBUF_NR		500
 	DECLARE_ARRAY_ALLOCATOR(struct keybuf_key, freelist, KEYBUF_NR);
 };
 
@@ -273,9 +273,10 @@ struct bcache_device {
 	atomic_t		detaching;
 	int			flush_done;
 
-	uint64_t		nr_stripes;
+	unsigned		nr_stripes;
 	unsigned		stripe_size;
 	atomic_t		*stripe_sectors_dirty;
+	unsigned long		*full_dirty_stripes;
 
 	unsigned long		sectors_dirty_last;
 	long			sectors_dirty_derivative;
diff --git a/drivers/md/bcache/btree.c b/drivers/md/bcache/btree.c
index 6def7c9a1228..5e2765aadce1 100644
--- a/drivers/md/bcache/btree.c
+++ b/drivers/md/bcache/btree.c
@@ -2378,6 +2378,7 @@ static inline int keybuf_nonoverlapping_cmp(struct keybuf_key *l,
 
 struct refill {
 	struct btree_op	op;
+	unsigned	nr_found;
 	struct keybuf	*buf;
 	struct bkey	*end;
 	keybuf_pred_fn	*pred;
@@ -2414,6 +2415,8 @@ static int refill_keybuf_fn(struct btree_op *op, struct btree *b,
 
 		if (RB_INSERT(&buf->keys, w, node, keybuf_cmp))
 			array_free(&buf->freelist, w);
+		else
+			refill->nr_found++;
 
 		if (array_freelist_empty(&buf->freelist))
 			ret = MAP_DONE;
@@ -2434,18 +2437,18 @@ void bch_refill_keybuf(struct cache_set *c, struct keybuf *buf,
 	cond_resched();
 
 	bch_btree_op_init(&refill.op, -1);
-	refill.buf = buf;
-	refill.end = end;
-	refill.pred = pred;
+	refill.nr_found	= 0;
+	refill.buf	= buf;
+	refill.end	= end;
+	refill.pred	= pred;
 
 	bch_btree_map_keys(&refill.op, c, &buf->last_scanned,
 			   refill_keybuf_fn, MAP_END_KEY);
 
-	pr_debug("found %s keys from %llu:%llu to %llu:%llu",
-		 RB_EMPTY_ROOT(&buf->keys) ? "no" :
-		 array_freelist_empty(&buf->freelist) ? "some" : "a few",
-		 KEY_INODE(&start), KEY_OFFSET(&start),
-		 KEY_INODE(&buf->last_scanned), KEY_OFFSET(&buf->last_scanned));
+	trace_bcache_keyscan(refill.nr_found,
+			     KEY_INODE(&start), KEY_OFFSET(&start),
+			     KEY_INODE(&buf->last_scanned),
+			     KEY_OFFSET(&buf->last_scanned));
 
 	spin_lock(&buf->lock);
 
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 4813ef67cef5..43fcfe38be11 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -738,6 +738,10 @@ static void bcache_device_free(struct bcache_device *d)
 		mempool_destroy(d->unaligned_bvec);
 	if (d->bio_split)
 		bioset_free(d->bio_split);
+	if (is_vmalloc_addr(d->full_dirty_stripes))
+		vfree(d->full_dirty_stripes);
+	else
+		kfree(d->full_dirty_stripes);
 	if (is_vmalloc_addr(d->stripe_sectors_dirty))
 		vfree(d->stripe_sectors_dirty);
 	else
@@ -757,8 +761,12 @@ static int bcache_device_init(struct bcache_device *d, unsigned block_size,
 
 	d->nr_stripes = DIV_ROUND_UP_ULL(sectors, d->stripe_size);
 
-	if (!d->nr_stripes || d->nr_stripes > SIZE_MAX / sizeof(atomic_t))
+	if (!d->nr_stripes ||
+	    d->nr_stripes > INT_MAX ||
+	    d->nr_stripes > SIZE_MAX / sizeof(atomic_t)) {
+		pr_err("nr_stripes too large");
 		return -ENOMEM;
+	}
 
 	n = d->nr_stripes * sizeof(atomic_t);
 	d->stripe_sectors_dirty = n < PAGE_SIZE << 6
@@ -767,6 +775,13 @@ static int bcache_device_init(struct bcache_device *d, unsigned block_size,
 	if (!d->stripe_sectors_dirty)
 		return -ENOMEM;
 
+	n = BITS_TO_LONGS(d->nr_stripes) * sizeof(unsigned long);
+	d->full_dirty_stripes = n < PAGE_SIZE << 6
+		? kzalloc(n, GFP_KERNEL)
+		: vzalloc(n);
+	if (!d->full_dirty_stripes)
+		return -ENOMEM;
+
 	if (!(d->bio_split = bioset_create(4, offsetof(struct bbio, bio))) ||
 	    !(d->unaligned_bvec = mempool_create_kmalloc_pool(1,
 				sizeof(struct bio_vec) * BIO_MAX_PAGES)) ||
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index ab0f6b449111..22e21dc9a037 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -292,14 +292,12 @@ void bcache_dev_sectors_dirty_add(struct cache_set *c, unsigned inode,
 				  uint64_t offset, int nr_sectors)
 {
 	struct bcache_device *d = c->devices[inode];
-	unsigned stripe_offset;
-	uint64_t stripe = offset;
+	unsigned stripe_offset, stripe, sectors_dirty;
 
 	if (!d)
 		return;
 
-	do_div(stripe, d->stripe_size);
-
+	stripe = offset_to_stripe(d, offset);
 	stripe_offset = offset & (d->stripe_size - 1);
 
 	while (nr_sectors) {
@@ -309,7 +307,16 @@ void bcache_dev_sectors_dirty_add(struct cache_set *c, unsigned inode,
 		if (nr_sectors < 0)
 			s = -s;
 
-		atomic_add(s, d->stripe_sectors_dirty + stripe);
+		if (stripe >= d->nr_stripes)
+			return;
+
+		sectors_dirty = atomic_add_return(s,
+					d->stripe_sectors_dirty + stripe);
+		if (sectors_dirty == d->stripe_size)
+			set_bit(stripe, d->full_dirty_stripes);
+		else
+			clear_bit(stripe, d->full_dirty_stripes);
+
 		nr_sectors -= s;
 		stripe_offset = 0;
 		stripe++;
@@ -321,59 +328,70 @@ static bool dirty_pred(struct keybuf *buf, struct bkey *k)
 	return KEY_DIRTY(k);
 }
 
-static bool dirty_full_stripe_pred(struct keybuf *buf, struct bkey *k)
+static void refill_full_stripes(struct cached_dev *dc)
 {
-	uint64_t stripe = KEY_START(k);
-	unsigned nr_sectors = KEY_SIZE(k);
-	struct cached_dev *dc = container_of(buf, struct cached_dev,
-					     writeback_keys);
+	struct keybuf *buf = &dc->writeback_keys;
+	unsigned start_stripe, stripe, next_stripe;
+	bool wrapped = false;
+
+	stripe = offset_to_stripe(&dc->disk, KEY_OFFSET(&buf->last_scanned));
 
-	if (!KEY_DIRTY(k))
-		return false;
+	if (stripe >= dc->disk.nr_stripes)
+		stripe = 0;
 
-	do_div(stripe, dc->disk.stripe_size);
+	start_stripe = stripe;
 
 	while (1) {
-		if (atomic_read(dc->disk.stripe_sectors_dirty + stripe) ==
-		    dc->disk.stripe_size)
-			return true;
+		stripe = find_next_bit(dc->disk.full_dirty_stripes,
+				       dc->disk.nr_stripes, stripe);
 
-		if (nr_sectors <= dc->disk.stripe_size)
-			return false;
+		if (stripe == dc->disk.nr_stripes)
+			goto next;
 
-		nr_sectors -= dc->disk.stripe_size;
-		stripe++;
+		next_stripe = find_next_zero_bit(dc->disk.full_dirty_stripes,
+						 dc->disk.nr_stripes, stripe);
+
+		buf->last_scanned = KEY(dc->disk.id,
+					stripe * dc->disk.stripe_size, 0);
+
+		bch_refill_keybuf(dc->disk.c, buf,
+				  &KEY(dc->disk.id,
+				       next_stripe * dc->disk.stripe_size, 0),
+				  dirty_pred);
+
+		if (array_freelist_empty(&buf->freelist))
+			return;
+
+		stripe = next_stripe;
+next:
+		if (wrapped && stripe > start_stripe)
+			return;
+
+		if (stripe == dc->disk.nr_stripes) {
+			stripe = 0;
+			wrapped = true;
+		}
 	}
 }
 
 static bool refill_dirty(struct cached_dev *dc)
 {
 	struct keybuf *buf = &dc->writeback_keys;
-	bool searched_from_start = false;
 	struct bkey end = KEY(dc->disk.id, MAX_KEY_OFFSET, 0);
+	bool searched_from_start = false;
+
+	if (dc->partial_stripes_expensive) {
+		refill_full_stripes(dc);
+		if (array_freelist_empty(&buf->freelist))
+			return false;
+	}
 
 	if (bkey_cmp(&buf->last_scanned, &end) >= 0) {
 		buf->last_scanned = KEY(dc->disk.id, 0, 0);
 		searched_from_start = true;
 	}
 
-	if (dc->partial_stripes_expensive) {
-		uint64_t i;
-
-		for (i = 0; i < dc->disk.nr_stripes; i++)
-			if (atomic_read(dc->disk.stripe_sectors_dirty + i) ==
-			    dc->disk.stripe_size)
-				goto full_stripes;
-
-		goto normal_refill;
-full_stripes:
-		searched_from_start = false;	/* not searching entire btree */
-		bch_refill_keybuf(dc->disk.c, buf, &end,
-				  dirty_full_stripe_pred);
-	} else {
-normal_refill:
-		bch_refill_keybuf(dc->disk.c, buf, &end, dirty_pred);
-	}
+	bch_refill_keybuf(dc->disk.c, buf, &end, dirty_pred);
 
 	return bkey_cmp(&buf->last_scanned, &end) >= 0 && searched_from_start;
 }
diff --git a/drivers/md/bcache/writeback.h b/drivers/md/bcache/writeback.h
index 60516bfa6052..fe7d9d56492b 100644
--- a/drivers/md/bcache/writeback.h
+++ b/drivers/md/bcache/writeback.h
@@ -14,22 +14,27 @@ static inline uint64_t bcache_dev_sectors_dirty(struct bcache_device *d)
 	return ret;
 }
 
-static inline bool bcache_dev_stripe_dirty(struct bcache_device *d,
+static inline unsigned offset_to_stripe(struct bcache_device *d,
+					uint64_t offset)
+{
+	do_div(offset, d->stripe_size);
+	return offset;
+}
+
+static inline bool bcache_dev_stripe_dirty(struct cached_dev *dc,
 					   uint64_t offset,
 					   unsigned nr_sectors)
 {
-	uint64_t stripe = offset;
-
-	do_div(stripe, d->stripe_size);
+	unsigned stripe = offset_to_stripe(&dc->disk, offset);
 
 	while (1) {
-		if (atomic_read(d->stripe_sectors_dirty + stripe))
+		if (atomic_read(dc->disk.stripe_sectors_dirty + stripe))
 			return true;
 
-		if (nr_sectors <= d->stripe_size)
+		if (nr_sectors <= dc->disk.stripe_size)
 			return false;
 
-		nr_sectors -= d->stripe_size;
+		nr_sectors -= dc->disk.stripe_size;
 		stripe++;
 	}
 }
@@ -45,7 +50,7 @@ static inline bool should_writeback(struct cached_dev *dc, struct bio *bio,
 		return false;
 
 	if (dc->partial_stripes_expensive &&
-	    bcache_dev_stripe_dirty(&dc->disk, bio->bi_sector,
+	    bcache_dev_stripe_dirty(dc, bio->bi_sector,
 				    bio_sectors(bio)))
 		return true;
 
diff --git a/include/trace/events/bcache.h b/include/trace/events/bcache.h
index 32c89b33c391..e2b9576d00e2 100644
--- a/include/trace/events/bcache.h
+++ b/include/trace/events/bcache.h
@@ -368,6 +368,35 @@ DEFINE_EVENT(btree_node, bcache_btree_set_root,
 	TP_ARGS(b)
 );
 
+TRACE_EVENT(bcache_keyscan,
+	TP_PROTO(unsigned nr_found,
+		 unsigned start_inode, uint64_t start_offset,
+		 unsigned end_inode, uint64_t end_offset),
+	TP_ARGS(nr_found,
+		start_inode, start_offset,
+		end_inode, end_offset),
+
+	TP_STRUCT__entry(
+		__field(__u32,	nr_found			)
+		__field(__u32,	start_inode			)
+		__field(__u64,	start_offset			)
+		__field(__u32,	end_inode			)
+		__field(__u64,	end_offset			)
+	),
+
+	TP_fast_assign(
+		__entry->nr_found	= nr_found;
+		__entry->start_inode	= start_inode;
+		__entry->start_offset	= start_offset;
+		__entry->end_inode	= end_inode;
+		__entry->end_offset	= end_offset;
+	),
+
+	TP_printk("found %u keys from %u:%llu to %u:%llu", __entry->nr_found,
+		  __entry->start_inode, __entry->start_offset,
+		  __entry->end_inode, __entry->end_offset)
+);
+
 /* Allocator */
 
 TRACE_EVENT(bcache_alloc_invalidate,
-- 
cgit 


From c4d951ddb66fe1d087447b0ba65c4fa4446f1083 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 21 Aug 2013 17:49:09 -0700
Subject: bcache: Fix sysfs splat on shutdown with flash only devs

Whoops.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bcache.h    | 10 ++++------
 drivers/md/bcache/request.c   |  2 +-
 drivers/md/bcache/super.c     | 41 ++++++++++++++++++++---------------------
 drivers/md/bcache/sysfs.c     |  2 +-
 drivers/md/bcache/writeback.c |  6 +++---
 drivers/md/bcache/writeback.h |  2 +-
 6 files changed, 30 insertions(+), 33 deletions(-)

diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index ab0b2150fed6..97ef126b68bb 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -266,12 +266,10 @@ struct bcache_device {
 
 	struct gendisk		*disk;
 
-	/* If nonzero, we're closing */
-	atomic_t		closing;
-
-	/* If nonzero, we're detaching/unregistering from cache set */
-	atomic_t		detaching;
-	int			flush_done;
+	unsigned long		flags;
+#define BCACHE_DEV_CLOSING	0
+#define BCACHE_DEV_DETACHING	1
+#define BCACHE_DEV_UNLINK_DONE	2
 
 	unsigned		nr_stripes;
 	unsigned		stripe_size;
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index f645da61189a..9f5a1386f77a 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -512,7 +512,7 @@ static bool check_should_bypass(struct cached_dev *dc, struct bio *bio)
 	struct task_struct *task = current;
 	struct io *i;
 
-	if (atomic_read(&dc->disk.detaching) ||
+	if (test_bit(BCACHE_DEV_DETACHING, &dc->disk.flags) ||
 	    c->gc_stats.in_use > CUTOFF_CACHE_ADD ||
 	    (bio->bi_rw & REQ_DISCARD))
 		goto skip;
diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 43fcfe38be11..fa1d53087f88 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -621,7 +621,7 @@ static void prio_read(struct cache *ca, uint64_t bucket)
 static int open_dev(struct block_device *b, fmode_t mode)
 {
 	struct bcache_device *d = b->bd_disk->private_data;
-	if (atomic_read(&d->closing))
+	if (test_bit(BCACHE_DEV_CLOSING, &d->flags))
 		return -ENXIO;
 
 	closure_get(&d->cl);
@@ -650,20 +650,24 @@ static const struct block_device_operations bcache_ops = {
 
 void bcache_device_stop(struct bcache_device *d)
 {
-	if (!atomic_xchg(&d->closing, 1))
+	if (!test_and_set_bit(BCACHE_DEV_CLOSING, &d->flags))
 		closure_queue(&d->cl);
 }
 
 static void bcache_device_unlink(struct bcache_device *d)
 {
-	unsigned i;
-	struct cache *ca;
+	lockdep_assert_held(&bch_register_lock);
 
-	sysfs_remove_link(&d->c->kobj, d->name);
-	sysfs_remove_link(&d->kobj, "cache");
+	if (d->c && !test_and_set_bit(BCACHE_DEV_UNLINK_DONE, &d->flags)) {
+		unsigned i;
+		struct cache *ca;
 
-	for_each_cache(ca, d->c, i)
-		bd_unlink_disk_holder(ca->bdev, d->disk);
+		sysfs_remove_link(&d->c->kobj, d->name);
+		sysfs_remove_link(&d->kobj, "cache");
+
+		for_each_cache(ca, d->c, i)
+			bd_unlink_disk_holder(ca->bdev, d->disk);
+	}
 }
 
 static void bcache_device_link(struct bcache_device *d, struct cache_set *c,
@@ -687,19 +691,16 @@ static void bcache_device_detach(struct bcache_device *d)
 {
 	lockdep_assert_held(&bch_register_lock);
 
-	if (atomic_read(&d->detaching)) {
+	if (test_bit(BCACHE_DEV_DETACHING, &d->flags)) {
 		struct uuid_entry *u = d->c->uuids + d->id;
 
 		SET_UUID_FLASH_ONLY(u, 0);
 		memcpy(u->uuid, invalid_uuid, 16);
 		u->invalidated = cpu_to_le32(get_seconds());
 		bch_uuid_write(d->c);
-
-		atomic_set(&d->detaching, 0);
 	}
 
-	if (!d->flush_done)
-		bcache_device_unlink(d);
+	bcache_device_unlink(d);
 
 	d->c->devices[d->id] = NULL;
 	closure_put(&d->c->caching);
@@ -879,7 +880,7 @@ static void cached_dev_detach_finish(struct work_struct *w)
 	struct closure cl;
 	closure_init_stack(&cl);
 
-	BUG_ON(!atomic_read(&dc->disk.detaching));
+	BUG_ON(!test_bit(BCACHE_DEV_DETACHING, &dc->disk.flags));
 	BUG_ON(atomic_read(&dc->count));
 
 	mutex_lock(&bch_register_lock);
@@ -893,6 +894,8 @@ static void cached_dev_detach_finish(struct work_struct *w)
 	bcache_device_detach(&dc->disk);
 	list_move(&dc->list, &uncached_devices);
 
+	clear_bit(BCACHE_DEV_DETACHING, &dc->disk.flags);
+
 	mutex_unlock(&bch_register_lock);
 
 	pr_info("Caching disabled for %s", bdevname(dc->bdev, buf));
@@ -905,10 +908,10 @@ void bch_cached_dev_detach(struct cached_dev *dc)
 {
 	lockdep_assert_held(&bch_register_lock);
 
-	if (atomic_read(&dc->disk.closing))
+	if (test_bit(BCACHE_DEV_CLOSING, &dc->disk.flags))
 		return;
 
-	if (atomic_xchg(&dc->disk.detaching, 1))
+	if (test_and_set_bit(BCACHE_DEV_DETACHING, &dc->disk.flags))
 		return;
 
 	/*
@@ -1064,11 +1067,7 @@ static void cached_dev_flush(struct closure *cl)
 	struct bcache_device *d = &dc->disk;
 
 	mutex_lock(&bch_register_lock);
-	d->flush_done = 1;
-
-	if (d->c)
-		bcache_device_unlink(d);
-
+	bcache_device_unlink(d);
 	mutex_unlock(&bch_register_lock);
 
 	bch_cache_accounting_destroy(&dc->accounting);
diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
index 4b672449ffaf..194d43782ea4 100644
--- a/drivers/md/bcache/sysfs.c
+++ b/drivers/md/bcache/sysfs.c
@@ -370,7 +370,7 @@ STORE(__bch_flash_dev)
 	}
 
 	if (attr == &sysfs_unregister) {
-		atomic_set(&d->detaching, 1);
+		set_bit(BCACHE_DEV_DETACHING, &d->flags);
 		bcache_device_stop(d);
 	}
 
diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c
index 22e21dc9a037..99053b1251be 100644
--- a/drivers/md/bcache/writeback.c
+++ b/drivers/md/bcache/writeback.c
@@ -89,7 +89,7 @@ static unsigned writeback_delay(struct cached_dev *dc, unsigned sectors)
 {
 	uint64_t ret;
 
-	if (atomic_read(&dc->disk.detaching) ||
+	if (test_bit(BCACHE_DEV_DETACHING, &dc->disk.flags) ||
 	    !dc->writeback_percent)
 		return 0;
 
@@ -404,7 +404,7 @@ static int bch_writeback_thread(void *arg)
 	while (!kthread_should_stop()) {
 		down_write(&dc->writeback_lock);
 		if (!atomic_read(&dc->has_dirty) ||
-		    (!atomic_read(&dc->disk.detaching) &&
+		    (!test_bit(BCACHE_DEV_DETACHING, &dc->disk.flags) &&
 		     !dc->writeback_running)) {
 			up_write(&dc->writeback_lock);
 			set_current_state(TASK_INTERRUPTIBLE);
@@ -437,7 +437,7 @@ static int bch_writeback_thread(void *arg)
 
 			while (delay &&
 			       !kthread_should_stop() &&
-			       !atomic_read(&dc->disk.detaching))
+			       !test_bit(BCACHE_DEV_DETACHING, &dc->disk.flags))
 				delay = schedule_timeout_interruptible(delay);
 		}
 	}
diff --git a/drivers/md/bcache/writeback.h b/drivers/md/bcache/writeback.h
index fe7d9d56492b..c9ddcf4614b9 100644
--- a/drivers/md/bcache/writeback.h
+++ b/drivers/md/bcache/writeback.h
@@ -45,7 +45,7 @@ static inline bool should_writeback(struct cached_dev *dc, struct bio *bio,
 	unsigned in_use = dc->disk.c->gc_stats.in_use;
 
 	if (cache_mode != CACHE_MODE_WRITEBACK ||
-	    atomic_read(&dc->disk.detaching) ||
+	    test_bit(BCACHE_DEV_DETACHING, &dc->disk.flags) ||
 	    in_use > CUTOFF_WRITEBACK_SYNC)
 		return false;
 
-- 
cgit 


From 28935ab5163c49ca5c199d67335e5e3c72c50853 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 31 Jul 2013 01:12:02 -0700
Subject: bcache: Use ida for bcache block dev minor

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/super.c | 26 ++++++++++++++++++++------
 1 file changed, 20 insertions(+), 6 deletions(-)

diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index fa1d53087f88..70708ab0b8f9 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -16,6 +16,7 @@
 #include <linux/buffer_head.h>
 #include <linux/debugfs.h>
 #include <linux/genhd.h>
+#include <linux/idr.h>
 #include <linux/kthread.h>
 #include <linux/module.h>
 #include <linux/random.h>
@@ -50,7 +51,8 @@ struct mutex bch_register_lock;
 LIST_HEAD(bch_cache_sets);
 static LIST_HEAD(uncached_devices);
 
-static int bcache_major, bcache_minor;
+static int bcache_major;
+static DEFINE_IDA(bcache_minor);
 static wait_queue_head_t unregister_wait;
 struct workqueue_struct *bcache_wq;
 
@@ -731,8 +733,10 @@ static void bcache_device_free(struct bcache_device *d)
 		del_gendisk(d->disk);
 	if (d->disk && d->disk->queue)
 		blk_cleanup_queue(d->disk->queue);
-	if (d->disk)
+	if (d->disk) {
+		ida_simple_remove(&bcache_minor, d->disk->first_minor);
 		put_disk(d->disk);
+	}
 
 	bio_split_pool_free(&d->bio_split_hook);
 	if (d->unaligned_bvec)
@@ -756,6 +760,7 @@ static int bcache_device_init(struct bcache_device *d, unsigned block_size,
 {
 	struct request_queue *q;
 	size_t n;
+	int minor;
 
 	if (!d->stripe_size)
 		d->stripe_size = 1 << 31;
@@ -783,22 +788,31 @@ static int bcache_device_init(struct bcache_device *d, unsigned block_size,
 	if (!d->full_dirty_stripes)
 		return -ENOMEM;
 
+	minor = ida_simple_get(&bcache_minor, 0, MINORMASK + 1, GFP_KERNEL);
+	if (minor < 0)
+		return minor;
+
 	if (!(d->bio_split = bioset_create(4, offsetof(struct bbio, bio))) ||
 	    !(d->unaligned_bvec = mempool_create_kmalloc_pool(1,
 				sizeof(struct bio_vec) * BIO_MAX_PAGES)) ||
 	    bio_split_pool_init(&d->bio_split_hook) ||
-	    !(d->disk = alloc_disk(1)) ||
-	    !(q = blk_alloc_queue(GFP_KERNEL)))
+	    !(d->disk = alloc_disk(1))) {
+		ida_simple_remove(&bcache_minor, minor);
 		return -ENOMEM;
+	}
 
 	set_capacity(d->disk, sectors);
-	snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", bcache_minor);
+	snprintf(d->disk->disk_name, DISK_NAME_LEN, "bcache%i", minor);
 
 	d->disk->major		= bcache_major;
-	d->disk->first_minor	= bcache_minor++;
+	d->disk->first_minor	= minor;
 	d->disk->fops		= &bcache_ops;
 	d->disk->private_data	= d;
 
+	q = blk_alloc_queue(GFP_KERNEL);
+	if (!q)
+		return -ENOMEM;
+
 	blk_queue_make_request(q, NULL);
 	d->disk->queue			= q;
 	q->queuedata			= d;
-- 
cgit 


From 098fb25498214069e6bbf908515f2952dd7654d0 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Wed, 21 Aug 2013 18:36:45 -0700
Subject: bcache: Delete some slower inline asm

Never saw a profile of bset_search_tree() where it wasn't bottlenecked
on memory until I got my new Haswell machine, but when I tried it there
it was suddenly burning 20% of the cpu in the inner loop on shrd...

Turns out, the version of shrd that takes 64 bit operands has a 9 cycle
latency. hah.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bset.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/drivers/md/bcache/bset.c b/drivers/md/bcache/bset.c
index 14573391206b..7d388b8bb50e 100644
--- a/drivers/md/bcache/bset.c
+++ b/drivers/md/bcache/bset.c
@@ -481,16 +481,8 @@ static struct bkey *table_to_bkey(struct bset_tree *t, unsigned cacheline)
 
 static inline uint64_t shrd128(uint64_t high, uint64_t low, uint8_t shift)
 {
-#ifdef CONFIG_X86_64
-	asm("shrd %[shift],%[high],%[low]"
-	    : [low] "+Rm" (low)
-	    : [high] "R" (high),
-	    [shift] "ci" (shift)
-	    : "cc");
-#else
 	low >>= shift;
 	low  |= (high << 1) << (63U - shift);
-#endif
 	return low;
 }
 
-- 
cgit 


From 5ceaaad7047745c1c02150c39d3fb623b7948d48 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Tue, 10 Sep 2013 14:27:42 -0700
Subject: bcache: Bypass torture test

More testing ftw! Also, now verify mode doesn't break if you read dirty
data.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/bcache.h  |  1 +
 drivers/md/bcache/debug.c   | 15 ++++++++-------
 drivers/md/bcache/debug.h   |  2 ++
 drivers/md/bcache/request.c | 14 +++++++++++++-
 drivers/md/bcache/sysfs.c   |  4 ++++
 5 files changed, 28 insertions(+), 8 deletions(-)

diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h
index 97ef126b68bb..4beb55a0ff30 100644
--- a/drivers/md/bcache/bcache.h
+++ b/drivers/md/bcache/bcache.h
@@ -364,6 +364,7 @@ struct cached_dev {
 	unsigned		readahead;
 
 	unsigned		verify:1;
+	unsigned		bypass_torture_test:1;
 
 	unsigned		partial_stripes_expensive:1;
 	unsigned		writeback_metadata:1;
diff --git a/drivers/md/bcache/debug.c b/drivers/md/bcache/debug.c
index e99e6b8852b2..264fcfbd6290 100644
--- a/drivers/md/bcache/debug.c
+++ b/drivers/md/bcache/debug.c
@@ -189,13 +189,14 @@ void bch_data_verify(struct cached_dev *dc, struct bio *bio)
 		void *p1 = kmap_atomic(bv->bv_page);
 		void *p2 = page_address(check->bi_io_vec[i].bv_page);
 
-		if (memcmp(p1 + bv->bv_offset,
-			   p2 + bv->bv_offset,
-			   bv->bv_len))
-			printk(KERN_ERR
-			       "bcache (%s): verify failed at sector %llu\n",
-			       bdevname(dc->bdev, name),
-			       (uint64_t) bio->bi_sector);
+		cache_set_err_on(memcmp(p1 + bv->bv_offset,
+					p2 + bv->bv_offset,
+					bv->bv_len),
+				 dc->disk.c,
+				 "verify failed at dev %s sector %llu",
+				 bdevname(dc->bdev, name),
+				 (uint64_t) bio->bi_sector);
+
 		kunmap_atomic(p1);
 	}
 
diff --git a/drivers/md/bcache/debug.h b/drivers/md/bcache/debug.h
index 7914ba0ff316..2ede60e31874 100644
--- a/drivers/md/bcache/debug.h
+++ b/drivers/md/bcache/debug.h
@@ -16,6 +16,7 @@ void bch_btree_iter_next_check(struct btree_iter *);
 #define EBUG_ON(cond)			BUG_ON(cond)
 #define expensive_debug_checks(c)	((c)->expensive_debug_checks)
 #define key_merging_disabled(c)		((c)->key_merging_disabled)
+#define bypass_torture_test(d)		((d)->bypass_torture_test)
 
 #else /* DEBUG */
 
@@ -28,6 +29,7 @@ static inline void bch_btree_iter_next_check(struct btree_iter *iter) {}
 #define EBUG_ON(cond)			do { if (cond); } while (0)
 #define expensive_debug_checks(c)	0
 #define key_merging_disabled(c)		0
+#define bypass_torture_test(d)		0
 
 #endif
 
diff --git a/drivers/md/bcache/request.c b/drivers/md/bcache/request.c
index 9f5a1386f77a..fbcc851ed5a5 100644
--- a/drivers/md/bcache/request.c
+++ b/drivers/md/bcache/request.c
@@ -528,6 +528,13 @@ static bool check_should_bypass(struct cached_dev *dc, struct bio *bio)
 		goto skip;
 	}
 
+	if (bypass_torture_test(dc)) {
+		if ((get_random_int() & 3) == 3)
+			goto skip;
+		else
+			goto rescale;
+	}
+
 	if (!congested && !dc->sequential_cutoff)
 		goto rescale;
 
@@ -601,6 +608,7 @@ struct search {
 	unsigned		recoverable:1;
 	unsigned		unaligned_bvec:1;
 	unsigned		write:1;
+	unsigned		read_dirty_data:1;
 
 	unsigned long		start_time;
 
@@ -669,6 +677,9 @@ static int cache_lookup_fn(struct btree_op *op, struct btree *b, struct bkey *k)
 
 	PTR_BUCKET(b->c, k, ptr)->prio = INITIAL_PRIO;
 
+	if (KEY_DIRTY(k))
+		s->read_dirty_data = true;
+
 	n = bch_bio_split(bio, min_t(uint64_t, INT_MAX,
 				     KEY_OFFSET(k) - bio->bi_sector),
 			  GFP_NOIO, s->d->bio_split);
@@ -894,7 +905,8 @@ static void cached_dev_read_done(struct closure *cl)
 		s->cache_miss = NULL;
 	}
 
-	if (verify(dc, &s->bio.bio) && s->recoverable && !s->unaligned_bvec)
+	if (verify(dc, &s->bio.bio) && s->recoverable &&
+	    !s->unaligned_bvec && !s->read_dirty_data)
 		bch_data_verify(dc, s->orig_bio);
 
 	bio_complete(s);
diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c
index 194d43782ea4..80d4c2bee18a 100644
--- a/drivers/md/bcache/sysfs.c
+++ b/drivers/md/bcache/sysfs.c
@@ -99,6 +99,7 @@ rw_attribute(errors);
 rw_attribute(io_error_limit);
 rw_attribute(io_error_halflife);
 rw_attribute(verify);
+rw_attribute(bypass_torture_test);
 rw_attribute(key_merging_disabled);
 rw_attribute(gc_always_rewrite);
 rw_attribute(expensive_debug_checks);
@@ -123,6 +124,7 @@ SHOW(__bch_cached_dev)
 
 	sysfs_printf(data_csum,		"%i", dc->disk.data_csum);
 	var_printf(verify,		"%i");
+	var_printf(bypass_torture_test,	"%i");
 	var_printf(writeback_metadata,	"%i");
 	var_printf(writeback_running,	"%i");
 	var_print(writeback_delay);
@@ -191,6 +193,7 @@ STORE(__cached_dev)
 
 	sysfs_strtoul(data_csum,	dc->disk.data_csum);
 	d_strtoul(verify);
+	d_strtoul(bypass_torture_test);
 	d_strtoul(writeback_metadata);
 	d_strtoul(writeback_running);
 	d_strtoul(writeback_delay);
@@ -323,6 +326,7 @@ static struct attribute *bch_cached_dev_files[] = {
 	&sysfs_readahead,
 #ifdef CONFIG_BCACHE_DEBUG
 	&sysfs_verify,
+	&sysfs_bypass_torture_test,
 #endif
 	NULL
 };
-- 
cgit 


From c86949486d41d9e7d7681fc72923555114fd702f Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Tue, 10 Sep 2013 21:41:34 -0700
Subject: bcache: defensively handle format strings

Just to be safe, call the error reporting function with "%s" to avoid
any possible future format string leak.

Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Kent Overstreet <kmo@daterainc.com>
---
 drivers/md/bcache/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 70708ab0b8f9..dec15cd2d797 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1670,7 +1670,7 @@ static void run_cache_set(struct cache_set *c)
 err:
 	closure_sync(&cl);
 	/* XXX: test this, it's broken */
-	bch_cache_set_error(c, err);
+	bch_cache_set_error(c, "%s", err);
 }
 
 static bool can_attach_cache(struct cache *ca, struct cache_set *c)
-- 
cgit 


From f8c31c8f80dd882f7eb49276989a4078d33d67a7 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Fri, 8 Nov 2013 19:26:21 +0100
Subject: ipv6: protect for_each_sk_fl_rcu in mem_check with rcu_read_lock_bh

Fixes a suspicious rcu derference warning.

Cc: Florent Fourcot <florent.fourcot@enst-bretagne.fr>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/ip6_flowlabel.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/ipv6/ip6_flowlabel.c b/net/ipv6/ip6_flowlabel.c
index 98fdcc6f51b1..e7fb7106550f 100644
--- a/net/ipv6/ip6_flowlabel.c
+++ b/net/ipv6/ip6_flowlabel.c
@@ -457,8 +457,10 @@ static int mem_check(struct sock *sk)
 	if (room > FL_MAX_SIZE - FL_MAX_PER_SOCK)
 		return 0;
 
+	rcu_read_lock_bh();
 	for_each_sk_fl_rcu(np, sfl)
 		count++;
+	rcu_read_unlock_bh();
 
 	if (room <= 0 ||
 	    ((count >= FL_MAX_PER_SOCK ||
-- 
cgit 


From a108193cf9685061660e111f985594d6a344abfb Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Sun, 10 Nov 2013 23:31:17 -0800
Subject: Input: tnetv107x-keypad - make irqs signed for error handling

There is a bug in keypad_probe() where we do:

	kp->irq_press   = platform_get_irq_byname(pdev, "press");
	kp->irq_release = platform_get_irq_byname(pdev, "release");
	if (kp->irq_press < 0 || kp->irq_release < 0) {

The problem is that these irq variables are unsigned so the error
handling doesn't work.  I've changed them to signed values.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/keyboard/tnetv107x-keypad.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/keyboard/tnetv107x-keypad.c b/drivers/input/keyboard/tnetv107x-keypad.c
index 5f7b427dd7ed..8bd24d52bf1b 100644
--- a/drivers/input/keyboard/tnetv107x-keypad.c
+++ b/drivers/input/keyboard/tnetv107x-keypad.c
@@ -60,8 +60,8 @@ struct keypad_data {
 	struct clk			*clk;
 	struct device			*dev;
 	spinlock_t			lock;
-	u32				irq_press;
-	u32				irq_release;
+	int				irq_press;
+	int				irq_release;
 	int				rows, cols, row_shift;
 	int				debounce_ms, active_low;
 	u32				prev_keys[3];
-- 
cgit 


From 158baef35129e46e3eb15838092e91b94f0181e0 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Sun, 10 Nov 2013 23:34:05 -0800
Subject: Input: mpu3050 - add missing i2c_set_clientdata() in mpu3050_probe()

Add missing i2c_set_clientdata() in mpu3050_probe(), otherwise
calling i2c_get_clientdata() in mpu3050_remove() returns NULL.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/misc/mpu3050.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/input/misc/mpu3050.c b/drivers/input/misc/mpu3050.c
index dce0d95943c5..6983ffbbfb94 100644
--- a/drivers/input/misc/mpu3050.c
+++ b/drivers/input/misc/mpu3050.c
@@ -383,6 +383,7 @@ static int mpu3050_probe(struct i2c_client *client,
 
 	pm_runtime_enable(&client->dev);
 	pm_runtime_set_autosuspend_delay(&client->dev, MPU3050_AUTO_DELAY);
+	i2c_set_clientdata(client, sensor);
 
 	return 0;
 
-- 
cgit 


From acc84667c533eddc6c84f5986860b7d8b2b9ee0d Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Sun, 10 Nov 2013 23:35:45 -0800
Subject: Input: mma8450 - add missing i2c_set_clientdata() in mma8450_probe()

Add missing i2c_set_clientdata() in mma8450_probe(), otherwise
calling i2c_get_clientdata() in mma8450_remove() returns NULL.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/misc/mma8450.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/input/misc/mma8450.c b/drivers/input/misc/mma8450.c
index f3309696d053..59d4dcddf6de 100644
--- a/drivers/input/misc/mma8450.c
+++ b/drivers/input/misc/mma8450.c
@@ -168,7 +168,7 @@ static void mma8450_close(struct input_polled_dev *dev)
  * I2C init/probing/exit functions
  */
 static int mma8450_probe(struct i2c_client *c,
-				   const struct i2c_device_id *id)
+			 const struct i2c_device_id *id)
 {
 	struct input_polled_dev *idev;
 	struct mma8450 *m;
@@ -204,6 +204,8 @@ static int mma8450_probe(struct i2c_client *c,
 		goto err_free_mem;
 	}
 
+	i2c_set_clientdata(c, m);
+
 	return 0;
 
 err_free_mem:
-- 
cgit 


From a0137817476ce9dc8c5cfd8078862796bbb8c70c Mon Sep 17 00:00:00 2001
From: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Date: Sun, 10 Nov 2013 23:41:46 -0800
Subject: Input: cyttsp4 - replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO

This patch fixes coccinelle error regarding usage of IS_ERR and
PTR_ERR instead of PTR_ERR_OR_ZERO.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/cyttsp4_spi.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/input/touchscreen/cyttsp4_spi.c b/drivers/input/touchscreen/cyttsp4_spi.c
index a71e1141d638..b19434cebbf6 100644
--- a/drivers/input/touchscreen/cyttsp4_spi.c
+++ b/drivers/input/touchscreen/cyttsp4_spi.c
@@ -171,10 +171,7 @@ static int cyttsp4_spi_probe(struct spi_device *spi)
 	ts = cyttsp4_probe(&cyttsp_spi_bus_ops, &spi->dev, spi->irq,
 			  CY_SPI_DATA_BUF_SIZE);
 
-	if (IS_ERR(ts))
-		return PTR_ERR(ts);
-
-	return 0;
+	return PTR_ERR_OR_ZERO(ts);
 }
 
 static int cyttsp4_spi_remove(struct spi_device *spi)
-- 
cgit 


From c9aeb249bf72edcf1ca28fe301fb3cbb53cb23d8 Mon Sep 17 00:00:00 2001
From: Felipe Balbi <balbi@ti.com>
Date: Sun, 10 Nov 2013 23:56:43 -0800
Subject: Input: ti_am335x_tsc - fix spelling mistake in TSC/ADC DT binding

There was a spelling mistake on TSC/ADC binding where "coordinate" was
spelled as "coordiante".

We can't simply fix the error due to DT being an ABI, the approach taken
was to first use correct spelling and if that fails, fall back to
miss-spelled version.

It's unfortunate that has creeped into the tree.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 .../devicetree/bindings/input/touchscreen/ti-tsc-adc.txt         | 2 +-
 arch/arm/boot/dts/am335x-evm.dts                                 | 2 +-
 drivers/input/touchscreen/ti_am335x_tsc.c                        | 9 ++++++++-
 3 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt b/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt
index 491c97b78384..878549ba814d 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/ti-tsc-adc.txt
@@ -6,7 +6,7 @@ Required properties:
 	ti,wires: Wires refer to application modes i.e. 4/5/8 wire touchscreen
 		  support on the platform.
 	ti,x-plate-resistance: X plate resistance
-	ti,coordiante-readouts: The sequencer supports a total of 16
+	ti,coordinate-readouts: The sequencer supports a total of 16
 				programmable steps each step is used to
 				read a single coordinate. A single
                                 readout is enough but multiple reads can
diff --git a/arch/arm/boot/dts/am335x-evm.dts b/arch/arm/boot/dts/am335x-evm.dts
index e8ec8756e498..c5b73bcd3686 100644
--- a/arch/arm/boot/dts/am335x-evm.dts
+++ b/arch/arm/boot/dts/am335x-evm.dts
@@ -509,7 +509,7 @@
 	tsc {
 		ti,wires = <4>;
 		ti,x-plate-resistance = <200>;
-		ti,coordiante-readouts = <5>;
+		ti,coordinate-readouts = <5>;
 		ti,wire-config = <0x00 0x11 0x22 0x33>;
 	};
 
diff --git a/drivers/input/touchscreen/ti_am335x_tsc.c b/drivers/input/touchscreen/ti_am335x_tsc.c
index df9b24f7e2cb..ad7564296ddf 100644
--- a/drivers/input/touchscreen/ti_am335x_tsc.c
+++ b/drivers/input/touchscreen/ti_am335x_tsc.c
@@ -348,8 +348,15 @@ static int titsc_parse_dt(struct platform_device *pdev,
 	if (err < 0)
 		return err;
 
-	err = of_property_read_u32(node, "ti,coordiante-readouts",
+	/*
+	 * Try with the new binding first. If it fails, try again with
+	 * bogus, miss-spelled version.
+	 */
+	err = of_property_read_u32(node, "ti,coordinate-readouts",
 			&ts_dev->coordinate_readouts);
+	if (err < 0)
+		err = of_property_read_u32(node, "ti,coordiante-readouts",
+				&ts_dev->coordinate_readouts);
 	if (err < 0)
 		return err;
 
-- 
cgit 


From 2c027b7c48a888ab173ba45babb4525e278375d9 Mon Sep 17 00:00:00 2001
From: Felipe Balbi <balbi@ti.com>
Date: Sun, 10 Nov 2013 23:58:31 -0800
Subject: arm: dts: am335x sk: add touchscreen support

Add missing nodes for the touchscreen available on AM335x EVM SK.

Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 arch/arm/boot/dts/am335x-evmsk.dts | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arm/boot/dts/am335x-evmsk.dts b/arch/arm/boot/dts/am335x-evmsk.dts
index 4f339fa91c57..d7c2c0c58437 100644
--- a/arch/arm/boot/dts/am335x-evmsk.dts
+++ b/arch/arm/boot/dts/am335x-evmsk.dts
@@ -419,3 +419,13 @@
 	phy_id = <&davinci_mdio>, <1>;
 	phy-mode = "rgmii-txid";
 };
+
+&tscadc {
+	status = "okay";
+	tsc {
+		ti,wires = <4>;
+		ti,x-plate-resistance = <200>;
+		ti,coordinate-readouts = <5>;
+		ti,wire-config = <0x00 0x11 0x22 0x33>;
+	};
+};
-- 
cgit 


From 9ebddac7ea2a1f4b4ce3335a78312a58dfaadb4d Mon Sep 17 00:00:00 2001
From: "Luck, Tony" <tony.luck@intel.com>
Date: Fri, 8 Nov 2013 14:03:33 -0800
Subject: ACPI, x86: Fix extended error log driver to depend on
 CONFIG_X86_LOCAL_APIC

Randconfig build by Fengguang's robot army reported:

   drivers/built-in.o: In function `extlog_print':
   >> acpi_extlog.c:(.text+0xcc719): undefined reference to `boot_cpu_physical_apicid'

The config had CONFIG_SMP=n so we picked up this definition from:

  <asm/cpu.h>: #define cpu_physical_id(cpu) boot_cpu_physical_apicid

But boot_cpu_physical_apicid is defined in arch/x86/kernel/apic/apic.c
which is only built if CONFIG_X86_LOCAL_APIC=y.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Cc: Chen Gong <gong.chen@linux.intel.com>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Link: http://lkml.kernel.org/r/6be3afdcad7968f7fb7c0b681e547b3e872e44dd.1383947368.git.tony.luck@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 drivers/acpi/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 08eadb4a57cb..e11faae81ed9 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -374,7 +374,7 @@ source "drivers/acpi/apei/Kconfig"
 
 config ACPI_EXTLOG
 	tristate "Extended Error Log support"
-	depends on X86_MCE
+	depends on X86_MCE && X86_LOCAL_APIC
 	select EFI
 	select UEFI_CPER
 	default n
-- 
cgit 


From 1b3f25ce991d528bd0d825b3f14a45904037a382 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 30 Oct 2013 10:09:41 +0530
Subject: Documentation/pwm: Update supported SoC name for pwm-samsung

Updated supported SoC name for pwm-samsung.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
---
 Documentation/devicetree/bindings/pwm/pwm-samsung.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/pwm/pwm-samsung.txt b/Documentation/devicetree/bindings/pwm/pwm-samsung.txt
index d61fccd40bad..5538de9c2007 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-samsung.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-samsung.txt
@@ -15,7 +15,7 @@ Required properties:
     samsung,s5pc100-pwm - for 32-bit timers present on S5PC100, S5PV210,
 			  Exynos4210 rev0 SoCs
     samsung,exynos4210-pwm - for 32-bit timers present on Exynos4210,
-                          Exynos4x12 and Exynos5250 SoCs
+                          Exynos4x12, Exynos5250 and Exynos5420 SoCs
 - reg: base address and size of register area
 - interrupts: list of timer interrupts (one interrupt per timer, starting at
   timer 0)
-- 
cgit 


From 95d50b6c5e18ff7351c5f2a6ff53afaed5f7e664 Mon Sep 17 00:00:00 2001
From: Forest Bond <forest.bond@rapidrollout.com>
Date: Mon, 21 Oct 2013 12:38:02 -0400
Subject: HID: don't ignore eGalax/D-Wav/EETI HIDs

Certain devices with class HID, protocol None did not work with the HID
driver at one point, and as a result were bound to usbtouchscreen
instead as of commit 139ebe8 ("Input: usbtouchscreen - fix eGalax HID
ignoring").  This change was prompted by the following report:

https://lkml.org/lkml/2009/1/25/127

Unfortunately, the device mentioned in this report is no longer
available for testing.

We've recently discovered that some devices with class HID, protocol
None do not work with usbtouchscreen, but do work with usbhid.  Here is
the report that made this evident:

http://comments.gmane.org/gmane.linux.kernel.input/31710

Driver binding for these devices has flip-flopped a few times, so both
of the above reports were regressions.

This situation would appear to leave us with no easy way to bind every
device to the right driver.  However, in my own testing with several
devices I have not found a device with class HID that does not work with
the current HID driver.  It is my belief that changes to the HID driver
since the original report have likely fixed the issue(s) that made it
unsuitable at the time, and that we should prefer it over usbtouchscreen
for these devices.  In particular, HID quirks affecting these devices
were added/removed in the following commits since then:

fe6065d HID: add multi-input quirk for eGalax Touchcontroller
77933c3 Merge branch 'egalax' into for-linus
ebd11fe HID: Add quirk for eGalax touch controler.
d34c4aa HID: add no-get quirk for eGalax touch controller

This patch makes the HID driver no longer ignore eGalax/D-Wav/EETI
devices with class HID.  If there are in fact devices with class HID
that still do not work with the HID driver, we will see another round of
regressions.  In that case I propose we investigate why the device is
not working with the HID driver rather than re-introduce regressions for
functioning HID devices by again binding them to usbtouchscreen.

The corresponding change to usbtouchscreen will be made separately.

Signed-off-by: Forest Bond <forest.bond@rapidrollout.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-core.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 868ebaa39413..3dd1217ff1bc 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -2371,15 +2371,6 @@ bool hid_ignore(struct hid_device *hdev)
 				hdev->type == HID_TYPE_USBNONE)
 			return true;
 		break;
-	case USB_VENDOR_ID_DWAV:
-		/* These are handled by usbtouchscreen. hdev->type is probably
-		 * HID_TYPE_USBNONE, but we say !HID_TYPE_USBMOUSE to match
-		 * usbtouchscreen. */
-		if ((hdev->product == USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER ||
-		     hdev->product == USB_DEVICE_ID_DWAV_TOUCHCONTROLLER) &&
-		    hdev->type != HID_TYPE_USBMOUSE)
-			return true;
-		break;
 	case USB_VENDOR_ID_VELLEMAN:
 		/* These are not HID devices.  They are handled by comedi. */
 		if ((hdev->product >= USB_DEVICE_ID_VELLEMAN_K8055_FIRST &&
-- 
cgit 


From ae2aa3a512fa5f50f67feba9e66bc2efb394bd63 Mon Sep 17 00:00:00 2001
From: Forest Bond <forest.bond@rapidrollout.com>
Date: Mon, 21 Oct 2013 12:38:18 -0400
Subject: Input: usbtouchscreen: ignore eGalax/D-Wav/EETI HIDs

The HID driver now handles these devices, regardless of what protocol
the device claims it supports.

Signed-off-by: Forest Bond <forest.bond@rapidrollout.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/input/touchscreen/usbtouchscreen.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index 721fdb3597ca..ae4b6b903629 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -146,12 +146,10 @@ enum {
 
 #define USB_DEVICE_HID_CLASS(vend, prod) \
 	.match_flags = USB_DEVICE_ID_MATCH_INT_CLASS \
-		| USB_DEVICE_ID_MATCH_INT_PROTOCOL \
 		| USB_DEVICE_ID_MATCH_DEVICE, \
 	.idVendor = (vend), \
 	.idProduct = (prod), \
-	.bInterfaceClass = USB_INTERFACE_CLASS_HID, \
-	.bInterfaceProtocol = USB_INTERFACE_PROTOCOL_MOUSE
+	.bInterfaceClass = USB_INTERFACE_CLASS_HID
 
 static const struct usb_device_id usbtouch_devices[] = {
 #ifdef CONFIG_TOUCHSCREEN_USB_EGALAX
-- 
cgit 


From a08c22c0df0ad23d0df10ae1a9df26643589b3cc Mon Sep 17 00:00:00 2001
From: Sven Eckelmann <sven@narfation.org>
Date: Sat, 9 Nov 2013 19:25:57 +0100
Subject: HID: sony: Add force feedback support for Dualshock3 USB

Sony Dualshock 3 controllers have two motors which can be used to provide
simple force feedback rumble effects. The right motor is can be used to create
a weak rumble effect but does not allow to set the force. The left motor is
used to create a strong rumble effect with adjustable intensity.

The state of both motors can be changed using HID_OUTPUT_REPORT packets and
have no timing information. FF memless is used to keep track of the timing and
the sony driver just generates the necessary URBs.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/Kconfig    |  8 ++++++++
 drivers/hid/hid-sony.c | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 60 insertions(+)

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 53747245d904..48525de02a39 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -613,6 +613,14 @@ config HID_SONY
 	  * Sony PS3 Blue-ray Disk Remote Control (Bluetooth)
 	  * Logitech Harmony adapter for Sony Playstation 3 (Bluetooth)
 
+config SONY_FF
+	bool "Sony PS2/3 accessories force feedback support"
+	depends on HID_SONY
+	select INPUT_FF_MEMLESS
+	---help---
+	Say Y here if you have a Sony PS2/3 accessory and want to enable force
+	feedback support for it.
+
 config HID_SPEEDLINK
 	tristate "Speedlink VAD Cezanne mouse support"
 	depends on HID
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index bc37a1800166..da551d113762 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -614,6 +614,54 @@ static void buzz_remove(struct hid_device *hdev)
 	drv_data->extra = NULL;
 }
 
+#ifdef CONFIG_SONY_FF
+static int sony_play_effect(struct input_dev *dev, void *data,
+			    struct ff_effect *effect)
+{
+	unsigned char buf[] = {
+		0x01,
+		0x00, 0xff, 0x00, 0xff, 0x00,
+		0x00, 0x00, 0x00, 0x00, 0x03,
+		0xff, 0x27, 0x10, 0x00, 0x32,
+		0xff, 0x27, 0x10, 0x00, 0x32,
+		0xff, 0x27, 0x10, 0x00, 0x32,
+		0xff, 0x27, 0x10, 0x00, 0x32,
+		0x00, 0x00, 0x00, 0x00, 0x00
+	};
+	__u8 left;
+	__u8 right;
+	struct hid_device *hid = input_get_drvdata(dev);
+
+	if (effect->type != FF_RUMBLE)
+		return 0;
+
+	left = effect->u.rumble.strong_magnitude / 256;
+	right = effect->u.rumble.weak_magnitude ? 1 : 0;
+
+	buf[3] = right;
+	buf[5] = left;
+
+	return hid->hid_output_raw_report(hid, buf, sizeof(buf),
+					  HID_OUTPUT_REPORT);
+}
+
+static int sony_init_ff(struct hid_device *hdev)
+{
+	struct hid_input *hidinput = list_entry(hdev->inputs.next,
+						struct hid_input, list);
+	struct input_dev *input_dev = hidinput->input;
+
+	input_set_capability(input_dev, EV_FF, FF_RUMBLE);
+	return input_ff_create_memless(input_dev, NULL, sony_play_effect);
+}
+
+#else
+static int sony_init_ff(struct hid_device *hdev)
+{
+	return 0;
+}
+#endif
+
 static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
 {
 	int ret;
@@ -663,6 +711,10 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
 	if (ret < 0)
 		goto err_stop;
 
+	ret = sony_init_ff(hdev);
+	if (ret < 0)
+		goto err_stop;
+
 	return 0;
 err_stop:
 	hid_hw_stop(hdev);
-- 
cgit 


From 24f76f37aab7cfd97e17976b41182817e887f0e1 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Sat, 26 Oct 2013 15:27:04 +0100
Subject: mfd: wm5110: Enable micd clamp functionality

Add missing registers and interrupts required for the microphone
detection clamping.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/wm5110-tables.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/mfd/wm5110-tables.c b/drivers/mfd/wm5110-tables.c
index c5c116a7b5ff..bf8b3b5ad1fe 100644
--- a/drivers/mfd/wm5110-tables.c
+++ b/drivers/mfd/wm5110-tables.c
@@ -243,6 +243,12 @@ int wm5110_patch(struct arizona *arizona)
 EXPORT_SYMBOL_GPL(wm5110_patch);
 
 static const struct regmap_irq wm5110_aod_irqs[ARIZONA_NUM_IRQ] = {
+	[ARIZONA_IRQ_MICD_CLAMP_FALL] = {
+		.mask = ARIZONA_MICD_CLAMP_FALL_EINT1
+	},
+	[ARIZONA_IRQ_MICD_CLAMP_RISE] = {
+		.mask = ARIZONA_MICD_CLAMP_RISE_EINT1
+	},
 	[ARIZONA_IRQ_GP5_FALL] = { .mask = ARIZONA_GP5_FALL_EINT1 },
 	[ARIZONA_IRQ_GP5_RISE] = { .mask = ARIZONA_GP5_RISE_EINT1 },
 	[ARIZONA_IRQ_JD_FALL] = { .mask = ARIZONA_JD1_FALL_EINT1 },
@@ -505,6 +511,7 @@ static const struct reg_default wm5110_reg_default[] = {
 	{ 0x00000293, 0x0000 },    /* R659   - Accessory Detect Mode 1 */
 	{ 0x0000029B, 0x0020 },    /* R667   - Headphone Detect 1 */
 	{ 0x0000029C, 0x0000 },    /* R668   - Headphone Detect 2 */
+	{ 0x000002A2, 0x0000 },    /* R674   - Micd clamp control */
 	{ 0x000002A3, 0x1102 },    /* R675   - Mic Detect 1 */
 	{ 0x000002A4, 0x009F },    /* R676   - Mic Detect 2 */
 	{ 0x000002A5, 0x0000 },    /* R677   - Mic Detect 3 */
@@ -1439,6 +1446,7 @@ static bool wm5110_readable_register(struct device *dev, unsigned int reg)
 	case ARIZONA_ACCESSORY_DETECT_MODE_1:
 	case ARIZONA_HEADPHONE_DETECT_1:
 	case ARIZONA_HEADPHONE_DETECT_2:
+	case ARIZONA_MICD_CLAMP_CONTROL:
 	case ARIZONA_MIC_DETECT_1:
 	case ARIZONA_MIC_DETECT_2:
 	case ARIZONA_MIC_DETECT_3:
-- 
cgit 


From 03e361b25ee8dfb1fd9b890072c23c4aae01c6c7 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Tue, 29 Oct 2013 10:03:04 +0100
Subject: mfd: Stop setting refcounting pointers in original mfd_cell arrays

Commit 1e29af62f2b285bd18685da93c3ce8c33ca2d1db ("mfd: Add refcounting
support to mfd_cells") had to drop the "const" keyword on the "cell"
parameter of mfd_add_devices(), as it added the refcounting pointers
to the objects of the passed mfd_cell array itself.

However, the mfd core code operates on copies of the mfd_cell objects,
so there's no need to modify the originally passed objects.

Hence, move the setting of the refcounting pointers from mfd_add_devices()
to mfd_platform_add_cell(), where the copy of the mfd_cell objects is made.
mfd_clone_cell() can just pass (a copy of) the original usage_count
pointer.

This allows to make the "cell" parameter of mfd_add_devices() "const"
again, and avoids future race conditions when registering multiple
instances of the same device in parallel.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/mfd-core.c   | 17 +++++++++--------
 include/linux/mfd/core.h |  2 +-
 2 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index f421586f29fb..8736f4539bc0 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -63,7 +63,8 @@ int mfd_cell_disable(struct platform_device *pdev)
 EXPORT_SYMBOL(mfd_cell_disable);
 
 static int mfd_platform_add_cell(struct platform_device *pdev,
-				 const struct mfd_cell *cell)
+				 const struct mfd_cell *cell,
+				 atomic_t *usage_count)
 {
 	if (!cell)
 		return 0;
@@ -72,11 +73,12 @@ static int mfd_platform_add_cell(struct platform_device *pdev,
 	if (!pdev->mfd_cell)
 		return -ENOMEM;
 
+	pdev->mfd_cell->usage_count = usage_count;
 	return 0;
 }
 
 static int mfd_add_device(struct device *parent, int id,
-			  const struct mfd_cell *cell,
+			  const struct mfd_cell *cell, atomic_t *usage_count,
 			  struct resource *mem_base,
 			  int irq_base, struct irq_domain *domain)
 {
@@ -115,7 +117,7 @@ static int mfd_add_device(struct device *parent, int id,
 			goto fail_res;
 	}
 
-	ret = mfd_platform_add_cell(pdev, cell);
+	ret = mfd_platform_add_cell(pdev, cell, usage_count);
 	if (ret)
 		goto fail_res;
 
@@ -180,7 +182,7 @@ fail_alloc:
 }
 
 int mfd_add_devices(struct device *parent, int id,
-		    struct mfd_cell *cells, int n_devs,
+		    const struct mfd_cell *cells, int n_devs,
 		    struct resource *mem_base,
 		    int irq_base, struct irq_domain *domain)
 {
@@ -195,8 +197,7 @@ int mfd_add_devices(struct device *parent, int id,
 
 	for (i = 0; i < n_devs; i++) {
 		atomic_set(&cnts[i], 0);
-		cells[i].usage_count = &cnts[i];
-		ret = mfd_add_device(parent, id, cells + i, mem_base,
+		ret = mfd_add_device(parent, id, cells + i, cnts + i, mem_base,
 				     irq_base, domain);
 		if (ret)
 			break;
@@ -259,8 +260,8 @@ int mfd_clone_cell(const char *cell, const char **clones, size_t n_clones)
 	for (i = 0; i < n_clones; i++) {
 		cell_entry.name = clones[i];
 		/* don't give up if a single call fails; just report error */
-		if (mfd_add_device(pdev->dev.parent, -1, &cell_entry, NULL, 0,
-				   NULL))
+		if (mfd_add_device(pdev->dev.parent, -1, &cell_entry,
+				   cell_entry.usage_count, NULL, 0, NULL))
 			dev_err(dev, "failed to create platform device '%s'\n",
 					clones[i]);
 	}
diff --git a/include/linux/mfd/core.h b/include/linux/mfd/core.h
index cebe97ee98b8..60ced604664f 100644
--- a/include/linux/mfd/core.h
+++ b/include/linux/mfd/core.h
@@ -98,7 +98,7 @@ static inline const struct mfd_cell *mfd_get_cell(struct platform_device *pdev)
 }
 
 extern int mfd_add_devices(struct device *parent, int id,
-			   struct mfd_cell *cells, int n_devs,
+			   const struct mfd_cell *cells, int n_devs,
 			   struct resource *mem_base,
 			   int irq_base, struct irq_domain *irq_domain);
 
-- 
cgit 


From 0b208e41acf34c133a55a57189af30aa7924e0c6 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Tue, 29 Oct 2013 15:47:22 +0100
Subject: mfd: Fix memory leak in mfd_add_devices()

If the first call to mfd_add_device() fails, no child devices have been
registered to the parent yet, and thus mfd_remove_devices() won't find
anything to remove nor free.
Hence the previously allocated array of atomic_t objects will leak.

Free the array instead of calling mfd_remove_devices() on failure during
the first loop iteration to fix this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/mfd-core.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/mfd/mfd-core.c b/drivers/mfd/mfd-core.c
index 8736f4539bc0..968775da638a 100644
--- a/drivers/mfd/mfd-core.c
+++ b/drivers/mfd/mfd-core.c
@@ -187,7 +187,7 @@ int mfd_add_devices(struct device *parent, int id,
 		    int irq_base, struct irq_domain *domain)
 {
 	int i;
-	int ret = 0;
+	int ret;
 	atomic_t *cnts;
 
 	/* initialize reference counting for all cells */
@@ -200,12 +200,16 @@ int mfd_add_devices(struct device *parent, int id,
 		ret = mfd_add_device(parent, id, cells + i, cnts + i, mem_base,
 				     irq_base, domain);
 		if (ret)
-			break;
+			goto fail;
 	}
 
-	if (ret)
-		mfd_remove_devices(parent);
+	return 0;
 
+fail:
+	if (i)
+		mfd_remove_devices(parent);
+	else
+		kfree(cnts);
 	return ret;
 }
 EXPORT_SYMBOL(mfd_add_devices);
-- 
cgit 


From d6daef95127e41233ac8e2d8472d8c0cd8687d38 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 7 Nov 2013 11:04:20 +0300
Subject: mfd: pm8921: Potential NULL dereference in pm8921_remove()

We assume that "pmic" could be NULL and then dereference it two lines
later.  I fix this by moving the dereference inside the NULL check.

Fixes: c013f0a56c56 ('mfd: Add pm8xxx irq support')

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 drivers/mfd/pm8921-core.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/mfd/pm8921-core.c b/drivers/mfd/pm8921-core.c
index a6841f77aa5e..484fe66e6c88 100644
--- a/drivers/mfd/pm8921-core.c
+++ b/drivers/mfd/pm8921-core.c
@@ -171,11 +171,12 @@ static int pm8921_remove(struct platform_device *pdev)
 	drvdata = platform_get_drvdata(pdev);
 	if (drvdata)
 		pmic = drvdata->pm_chip_data;
-	if (pmic)
+	if (pmic) {
 		mfd_remove_devices(pmic->dev);
-	if (pmic->irq_chip) {
-		pm8xxx_irq_exit(pmic->irq_chip);
-		pmic->irq_chip = NULL;
+		if (pmic->irq_chip) {
+			pm8xxx_irq_exit(pmic->irq_chip);
+			pmic->irq_chip = NULL;
+		}
 	}
 
 	return 0;
-- 
cgit 


From 9a46847aeac1148d8b15f0db629c8bbd754dfe24 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Fri, 8 Nov 2013 17:05:42 +0530
Subject: Documentation: mfd: Update s2mps11.txt

Updated the number of LDOs and BUCKs as per the user manual.
Fixed trivial typos to improve readability.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
 Documentation/devicetree/bindings/mfd/s2mps11.txt | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/Documentation/devicetree/bindings/mfd/s2mps11.txt b/Documentation/devicetree/bindings/mfd/s2mps11.txt
index c9332c626021..78a840d7510d 100644
--- a/Documentation/devicetree/bindings/mfd/s2mps11.txt
+++ b/Documentation/devicetree/bindings/mfd/s2mps11.txt
@@ -1,10 +1,10 @@
 
 * Samsung S2MPS11 Voltage and Current Regulator
 
-The Samsung S2MP211 is a multi-function device which includes voltage and
+The Samsung S2MPS11 is a multi-function device which includes voltage and
 current regulators, RTC, charger controller and other sub-blocks. It is
-interfaced to the host controller using a I2C interface. Each sub-block is
-addressed by the host system using different I2C slave address.
+interfaced to the host controller using an I2C interface. Each sub-block is
+addressed by the host system using different I2C slave addresses.
 
 Required properties:
 - compatible: Should be "samsung,s2mps11-pmic".
@@ -43,7 +43,8 @@ sub-node should be of the format as listed below.
 
  BUCK[2/3/4/6] supports disabling ramp delay on hardware, so explictly
  regulator-ramp-delay = <0> can be used for them to disable ramp delay.
- In absence of regulator-ramp-delay property, default ramp delay will be used.
+ In the absence of the regulator-ramp-delay property, the default ramp
+ delay will be used.
 
 NOTE: Some BUCKs share the ramp rate setting i.e. same ramp value will be set
 for a particular group of BUCKs. So provide same regulator-ramp-delay<value>.
@@ -58,10 +59,10 @@ supports. Note: The 'n' in LDOn and BUCKn represents the LDO or BUCK number
 as per the datasheet of s2mps11.
 
 	- LDOn
-		  - valid values for n are 1 to 28
+		  - valid values for n are 1 to 38
 		  - Example: LDO0, LD01, LDO28
 	- BUCKn
-		  - valid values for n are 1 to 9.
+		  - valid values for n are 1 to 10.
 		  - Example: BUCK1, BUCK2, BUCK9
 
 Example:
-- 
cgit 


From 67a6de49bf545c34eb8dee99abbb92d9ea268200 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Fri, 8 Nov 2013 08:26:39 +0100
Subject: locking/doc: Update references to kernel/mutex.c

Fix this docbook error:

  >> docproc: kernel/mutex.c: No such file or directory

by updating the stale references to kernel/mutex.c.

Reported-by: fengguang.wu@intel.com
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/n/tip-34pikw1tlsskj65rrt5iusrq@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 Documentation/DocBook/kernel-locking.tmpl |  2 +-
 Documentation/mutex-design.txt            | 10 +++++-----
 include/linux/mutex.h                     |  2 +-
 kernel/locking/mutex.c                    |  2 +-
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/Documentation/DocBook/kernel-locking.tmpl b/Documentation/DocBook/kernel-locking.tmpl
index 09e884e5b9f5..19f2a5a5a5b4 100644
--- a/Documentation/DocBook/kernel-locking.tmpl
+++ b/Documentation/DocBook/kernel-locking.tmpl
@@ -1958,7 +1958,7 @@ machines due to caching.
   <chapter id="apiref-mutex">
    <title>Mutex API reference</title>
 !Iinclude/linux/mutex.h
-!Ekernel/mutex.c
+!Ekernel/locking/mutex.c
   </chapter>
 
   <chapter id="apiref-futex">
diff --git a/Documentation/mutex-design.txt b/Documentation/mutex-design.txt
index 38c10fd7f411..1dfe62c3641d 100644
--- a/Documentation/mutex-design.txt
+++ b/Documentation/mutex-design.txt
@@ -116,11 +116,11 @@ using mutexes at the moment, please let me know if you find any. ]
 Implementation of mutexes
 -------------------------
 
-'struct mutex' is the new mutex type, defined in include/linux/mutex.h
-and implemented in kernel/mutex.c. It is a counter-based mutex with a
-spinlock and a wait-list. The counter has 3 states: 1 for "unlocked",
-0 for "locked" and negative numbers (usually -1) for "locked, potential
-waiters queued".
+'struct mutex' is the new mutex type, defined in include/linux/mutex.h and
+implemented in kernel/locking/mutex.c. It is a counter-based mutex with a
+spinlock and a wait-list. The counter has 3 states: 1 for "unlocked", 0 for
+"locked" and negative numbers (usually -1) for "locked, potential waiters
+queued".
 
 the APIs of 'struct mutex' have been streamlined:
 
diff --git a/include/linux/mutex.h b/include/linux/mutex.h
index bab49da8a0f0..d3181936c138 100644
--- a/include/linux/mutex.h
+++ b/include/linux/mutex.h
@@ -131,7 +131,7 @@ static inline int mutex_is_locked(struct mutex *lock)
 }
 
 /*
- * See kernel/mutex.c for detailed documentation of these APIs.
+ * See kernel/locking/mutex.c for detailed documentation of these APIs.
  * Also see Documentation/mutex-design.txt.
  */
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
diff --git a/kernel/locking/mutex.c b/kernel/locking/mutex.c
index d24105b1b794..4dd6e4c219de 100644
--- a/kernel/locking/mutex.c
+++ b/kernel/locking/mutex.c
@@ -1,5 +1,5 @@
 /*
- * kernel/mutex.c
+ * kernel/locking/mutex.c
  *
  * Mutexes: blocking mutual exclusion locks
  *
-- 
cgit 


From 838cc7b488f89ee642fd8336e8e1b620c8c3ece2 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 6 Nov 2013 17:42:30 +0100
Subject: lockdep/proc: Fix lock-time avg computation

>    kernel/locking/lockdep_proc.c: In function 'seq_lock_time':
> >> kernel/locking/lockdep_proc.c:424:23: warning: comparison of distinct pointer types lacks a cast [enabled by default]
>
>    418	static void seq_lock_time(struct seq_file *m, struct lock_time *lt)
>    419	{
>    420		seq_printf(m, "%14lu", lt->nr);
>    421		seq_time(m, lt->min);
>    422		seq_time(m, lt->max);
>    423		seq_time(m, lt->total);
>  > 424		seq_time(m, lt->nr ? do_div(lt->total, lt->nr) : 0);
>    425	}

My compiler refuses to actually say that; but it looks wrong in that
do_div() returns the remainder, not the divisor.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Tested-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Davidlohr Bueso <davidlohr@hp.com>
Link: http://lkml.kernel.org/r/20131106164230.GE16117@laptop.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/locking/lockdep_proc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/locking/lockdep_proc.c b/kernel/locking/lockdep_proc.c
index 09220656d888..ef43ac4bafb5 100644
--- a/kernel/locking/lockdep_proc.c
+++ b/kernel/locking/lockdep_proc.c
@@ -421,7 +421,7 @@ static void seq_lock_time(struct seq_file *m, struct lock_time *lt)
 	seq_time(m, lt->min);
 	seq_time(m, lt->max);
 	seq_time(m, lt->total);
-	seq_time(m, lt->nr ? do_div(lt->total, lt->nr) : 0);
+	seq_time(m, lt->nr ? div_s64(lt->total, lt->nr) : 0);
 }
 
 static void seq_stats(struct seq_file *m, struct lock_stat_data *data)
-- 
cgit 


From 7053ea1a34fa8567cb5e3c39e04ace4c5d0fbeaa Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Fri, 1 Nov 2013 10:41:46 -0400
Subject: stop_machine: Fix race between stop_two_cpus() and stop_cpus()

There is a race between stop_two_cpus, and the global stop_cpus.

It is possible for two CPUs to get their stopper functions queued
"backwards" from one another, resulting in the stopper threads
getting stuck, and the system hanging. This can happen because
queuing up stoppers is not synchronized.

This patch adds synchronization between stop_cpus (a rare operation),
and stop_two_cpus.

Reported-and-Tested-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Mel Gorman <mgorman@suse.de>
Link: http://lkml.kernel.org/r/20131101104146.03d1e043@annuminas.surriel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/stop_machine.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c
index c530bc5be7cf..84571e09c907 100644
--- a/kernel/stop_machine.c
+++ b/kernel/stop_machine.c
@@ -20,6 +20,7 @@
 #include <linux/kallsyms.h>
 #include <linux/smpboot.h>
 #include <linux/atomic.h>
+#include <linux/lglock.h>
 
 /*
  * Structure to determine completion condition and record errors.  May
@@ -43,6 +44,14 @@ static DEFINE_PER_CPU(struct cpu_stopper, cpu_stopper);
 static DEFINE_PER_CPU(struct task_struct *, cpu_stopper_task);
 static bool stop_machine_initialized = false;
 
+/*
+ * Avoids a race between stop_two_cpus and global stop_cpus, where
+ * the stoppers could get queued up in reverse order, leading to
+ * system deadlock. Using an lglock means stop_two_cpus remains
+ * relatively cheap.
+ */
+DEFINE_STATIC_LGLOCK(stop_cpus_lock);
+
 static void cpu_stop_init_done(struct cpu_stop_done *done, unsigned int nr_todo)
 {
 	memset(done, 0, sizeof(*done));
@@ -276,6 +285,7 @@ int stop_two_cpus(unsigned int cpu1, unsigned int cpu2, cpu_stop_fn_t fn, void *
 		return -ENOENT;
 	}
 
+	lg_local_lock(&stop_cpus_lock);
 	/*
 	 * Queuing needs to be done by the lowest numbered CPU, to ensure
 	 * that works are always queued in the same order on every CPU.
@@ -284,6 +294,7 @@ int stop_two_cpus(unsigned int cpu1, unsigned int cpu2, cpu_stop_fn_t fn, void *
 	smp_call_function_single(min(cpu1, cpu2),
 				 &irq_cpu_stop_queue_work,
 				 &call_args, 0);
+	lg_local_unlock(&stop_cpus_lock);
 	preempt_enable();
 
 	wait_for_completion(&done.completion);
@@ -335,10 +346,10 @@ static void queue_stop_cpus_work(const struct cpumask *cpumask,
 	 * preempted by a stopper which might wait for other stoppers
 	 * to enter @fn which can lead to deadlock.
 	 */
-	preempt_disable();
+	lg_global_lock(&stop_cpus_lock);
 	for_each_cpu(cpu, cpumask)
 		cpu_stop_queue_work(cpu, &per_cpu(stop_cpus_work, cpu));
-	preempt_enable();
+	lg_global_unlock(&stop_cpus_lock);
 }
 
 static int __stop_cpus(const struct cpumask *cpumask,
-- 
cgit 


From e5137b50a0640009fd63a3e65c14bc6e1be8796a Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Fri, 4 Oct 2013 17:28:26 +0200
Subject: ftrace, sched: Add TRACE_FLAG_PREEMPT_RESCHED

Since the introduction of PREEMPT_NEED_RESCHED in:

  f27dde8deef3 ("sched: Add NEED_RESCHED to the preempt_count")

we need to be able to look at both TIF_NEED_RESCHED and
PREEMPT_NEED_RESCHED to understand the full preemption behaviour.

Add it to the trace output.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Huang Ying <ying.huang@intel.com>
Cc: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Link: http://lkml.kernel.org/r/20131004152826.GP3081@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 Documentation/trace/ftrace.txt |  6 +++++-
 kernel/trace/trace.c           |  3 ++-
 kernel/trace/trace.h           |  1 +
 kernel/trace/trace_output.c    | 19 +++++++++++++++++--
 4 files changed, 25 insertions(+), 4 deletions(-)

diff --git a/Documentation/trace/ftrace.txt b/Documentation/trace/ftrace.txt
index ea2d35d64d26..bd365988e8d8 100644
--- a/Documentation/trace/ftrace.txt
+++ b/Documentation/trace/ftrace.txt
@@ -655,7 +655,11 @@ explains which is which.
 		  read the irq flags variable, an 'X' will always
 		  be printed here.
 
-  need-resched: 'N' task need_resched is set, '.' otherwise.
+  need-resched:
+	'N' both TIF_NEED_RESCHED and PREEMPT_NEED_RESCHED is set,
+	'n' only TIF_NEED_RESCHED is set,
+	'p' only PREEMPT_NEED_RESCHED is set,
+	'.' otherwise.
 
   hardirq/softirq:
 	'H' - hard irq occurred inside a softirq.
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 7974ba20557d..d9fea7dfd5d3 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -1509,7 +1509,8 @@ tracing_generic_entry_update(struct trace_entry *entry, unsigned long flags,
 #endif
 		((pc & HARDIRQ_MASK) ? TRACE_FLAG_HARDIRQ : 0) |
 		((pc & SOFTIRQ_MASK) ? TRACE_FLAG_SOFTIRQ : 0) |
-		(need_resched() ? TRACE_FLAG_NEED_RESCHED : 0);
+		(tif_need_resched() ? TRACE_FLAG_NEED_RESCHED : 0) |
+		(test_preempt_need_resched() ? TRACE_FLAG_PREEMPT_RESCHED : 0);
 }
 EXPORT_SYMBOL_GPL(tracing_generic_entry_update);
 
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 10c86fb7a2b4..73d08aa25b55 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -124,6 +124,7 @@ enum trace_flag_type {
 	TRACE_FLAG_NEED_RESCHED		= 0x04,
 	TRACE_FLAG_HARDIRQ		= 0x08,
 	TRACE_FLAG_SOFTIRQ		= 0x10,
+	TRACE_FLAG_PREEMPT_RESCHED	= 0x20,
 };
 
 #define TRACE_BUF_SIZE		1024
diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c
index 34e7cbac0c9c..ed32284fbe32 100644
--- a/kernel/trace/trace_output.c
+++ b/kernel/trace/trace_output.c
@@ -618,8 +618,23 @@ int trace_print_lat_fmt(struct trace_seq *s, struct trace_entry *entry)
 		(entry->flags & TRACE_FLAG_IRQS_OFF) ? 'd' :
 		(entry->flags & TRACE_FLAG_IRQS_NOSUPPORT) ? 'X' :
 		'.';
-	need_resched =
-		(entry->flags & TRACE_FLAG_NEED_RESCHED) ? 'N' : '.';
+
+	switch (entry->flags & (TRACE_FLAG_NEED_RESCHED |
+				TRACE_FLAG_PREEMPT_RESCHED)) {
+	case TRACE_FLAG_NEED_RESCHED | TRACE_FLAG_PREEMPT_RESCHED:
+		need_resched = 'N';
+		break;
+	case TRACE_FLAG_NEED_RESCHED:
+		need_resched = 'n';
+		break;
+	case TRACE_FLAG_PREEMPT_RESCHED:
+		need_resched = 'p';
+		break;
+	default:
+		need_resched = '.';
+		break;
+	}
+
 	hardsoft_irq =
 		(hardirq && softirq) ? 'H' :
 		hardirq ? 'h' :
-- 
cgit 


From d00affb1c6bfa83e216931604f697a38745b4181 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Mon, 28 Oct 2013 23:49:28 +0100
Subject: fbdev: shmobile-hdmi: Convert to clk_prepare/unprepare

Turn clk_enable() and clk_disable() calls into clk_prepare_enable() and
clk_disable_unprepare() to get ready for the migration to the common
clock framework.

Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/sh_mobile_hdmi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/video/sh_mobile_hdmi.c b/drivers/video/sh_mobile_hdmi.c
index 5e2845b9f3a8..9a33ee0413fb 100644
--- a/drivers/video/sh_mobile_hdmi.c
+++ b/drivers/video/sh_mobile_hdmi.c
@@ -1326,7 +1326,7 @@ static int __init sh_hdmi_probe(struct platform_device *pdev)
 		goto erate;
 	}
 
-	ret = clk_enable(hdmi->hdmi_clk);
+	ret = clk_prepare_enable(hdmi->hdmi_clk);
 	if (ret < 0) {
 		dev_err(hdmi->dev, "Cannot enable clock: %d\n", ret);
 		goto erate;
@@ -1404,7 +1404,7 @@ emap_htop1:
 emap:
 	release_mem_region(res->start, resource_size(res));
 ereqreg:
-	clk_disable(hdmi->hdmi_clk);
+	clk_disable_unprepare(hdmi->hdmi_clk);
 erate:
 	clk_put(hdmi->hdmi_clk);
 
@@ -1425,7 +1425,7 @@ static int __exit sh_hdmi_remove(struct platform_device *pdev)
 	cancel_delayed_work_sync(&hdmi->edid_work);
 	pm_runtime_put(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
-	clk_disable(hdmi->hdmi_clk);
+	clk_disable_unprepare(hdmi->hdmi_clk);
 	clk_put(hdmi->hdmi_clk);
 	if (hdmi->htop1)
 		iounmap(hdmi->htop1);
-- 
cgit 


From deccd24f9077ccabc6b34f2e6d2f75c98b528fa1 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Mon, 28 Oct 2013 23:49:29 +0100
Subject: fbdev: shmobile-lcdcfb: Convert to clk_prepare/unprepare

Turn clk_enable() and clk_disable() calls into clk_prepare_enable() and
clk_disable_unprepare() to get ready for the migration to the common
clock framework.

Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: linux-fbdev@vger.kernel.org
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/sh_mobile_lcdcfb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index 0264704a52be..eaeae0fd0962 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -344,7 +344,7 @@ static void sh_mobile_lcdc_clk_on(struct sh_mobile_lcdc_priv *priv)
 {
 	if (atomic_inc_and_test(&priv->hw_usecnt)) {
 		if (priv->dot_clk)
-			clk_enable(priv->dot_clk);
+			clk_prepare_enable(priv->dot_clk);
 		pm_runtime_get_sync(priv->dev);
 		if (priv->meram_dev && priv->meram_dev->pdev)
 			pm_runtime_get_sync(&priv->meram_dev->pdev->dev);
@@ -358,7 +358,7 @@ static void sh_mobile_lcdc_clk_off(struct sh_mobile_lcdc_priv *priv)
 			pm_runtime_put_sync(&priv->meram_dev->pdev->dev);
 		pm_runtime_put(priv->dev);
 		if (priv->dot_clk)
-			clk_disable(priv->dot_clk);
+			clk_disable_unprepare(priv->dot_clk);
 	}
 }
 
-- 
cgit 


From 3a41c5dbe8bc396a7fb16ca8739e945bb003342e Mon Sep 17 00:00:00 2001
From: Gu Zheng <guz.fnst@cn.fujitsu.com>
Date: Tue, 5 Nov 2013 18:00:57 +0800
Subject: fb: reorder the lock sequence to fix potential dead lock

Following commits:

50e244cc79 fb: rework locking to fix lock ordering on takeover
e93a9a8687 fb: Yet another band-aid for fixing lockdep mess
054430e773 fbcon: fix locking harder

reworked locking to fix related lock ordering on takeover, and introduced console_lock
into fbmem, but it seems that the new lock sequence(fb_info->lock ---> console_lock)
is against with the one in console_callback(console_lock ---> fb_info->lock), and leads to
a potential dead lock as following:

[  601.079000] ======================================================
[  601.079000] [ INFO: possible circular locking dependency detected ]
[  601.079000] 3.11.0 #189 Not tainted
[  601.079000] -------------------------------------------------------
[  601.079000] kworker/0:3/619 is trying to acquire lock:
[  601.079000]  (&fb_info->lock){+.+.+.}, at: [<ffffffff81397566>] lock_fb_info+0x26/0x60
[  601.079000]
but task is already holding lock:
[  601.079000]  (console_lock){+.+.+.}, at: [<ffffffff8141aae3>] console_callback+0x13/0x160
[  601.079000]
which lock already depends on the new lock.

[  601.079000]
the existing dependency chain (in reverse order) is:
[  601.079000]
-> #1 (console_lock){+.+.+.}:
[  601.079000]        [<ffffffff810dc971>] lock_acquire+0xa1/0x140
[  601.079000]        [<ffffffff810c6267>] console_lock+0x77/0x80
[  601.079000]        [<ffffffff81399448>] register_framebuffer+0x1d8/0x320
[  601.079000]        [<ffffffff81cfb4c8>] efifb_probe+0x408/0x48f
[  601.079000]        [<ffffffff8144a963>] platform_drv_probe+0x43/0x80
[  601.079000]        [<ffffffff8144853b>] driver_probe_device+0x8b/0x390
[  601.079000]        [<ffffffff814488eb>] __driver_attach+0xab/0xb0
[  601.079000]        [<ffffffff814463bd>] bus_for_each_dev+0x5d/0xa0
[  601.079000]        [<ffffffff81447e6e>] driver_attach+0x1e/0x20
[  601.079000]        [<ffffffff81447a07>] bus_add_driver+0x117/0x290
[  601.079000]        [<ffffffff81448fea>] driver_register+0x7a/0x170
[  601.079000]        [<ffffffff8144a10a>] __platform_driver_register+0x4a/0x50
[  601.079000]        [<ffffffff8144a12d>] platform_driver_probe+0x1d/0xb0
[  601.079000]        [<ffffffff81cfb0a1>] efifb_init+0x273/0x292
[  601.079000]        [<ffffffff81002132>] do_one_initcall+0x102/0x1c0
[  601.079000]        [<ffffffff81cb80a6>] kernel_init_freeable+0x15d/0x1ef
[  601.079000]        [<ffffffff8166d2de>] kernel_init+0xe/0xf0
[  601.079000]        [<ffffffff816914ec>] ret_from_fork+0x7c/0xb0
[  601.079000]
-> #0 (&fb_info->lock){+.+.+.}:
[  601.079000]        [<ffffffff810dc1d8>] __lock_acquire+0x1e18/0x1f10
[  601.079000]        [<ffffffff810dc971>] lock_acquire+0xa1/0x140
[  601.079000]        [<ffffffff816835ca>] mutex_lock_nested+0x7a/0x3b0
[  601.079000]        [<ffffffff81397566>] lock_fb_info+0x26/0x60
[  601.079000]        [<ffffffff813a4aeb>] fbcon_blank+0x29b/0x2e0
[  601.079000]        [<ffffffff81418658>] do_blank_screen+0x1d8/0x280
[  601.079000]        [<ffffffff8141ab34>] console_callback+0x64/0x160
[  601.079000]        [<ffffffff8108d855>] process_one_work+0x1f5/0x540
[  601.079000]        [<ffffffff8108e04c>] worker_thread+0x11c/0x370
[  601.079000]        [<ffffffff81095fbd>] kthread+0xed/0x100
[  601.079000]        [<ffffffff816914ec>] ret_from_fork+0x7c/0xb0
[  601.079000]
other info that might help us debug this:

[  601.079000]  Possible unsafe locking scenario:

[  601.079000]        CPU0                    CPU1
[  601.079000]        ----                    ----
[  601.079000]   lock(console_lock);
[  601.079000]                                lock(&fb_info->lock);
[  601.079000]                                lock(console_lock);
[  601.079000]   lock(&fb_info->lock);
[  601.079000]
 *** DEADLOCK ***

so we reorder the lock sequence the same as it in console_callback() to
avoid this issue. And following Tomi's suggestion, fix these similar
issues all in fb subsystem.

Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/fbmem.c            | 50 +++++++++++++++++++++++++---------------
 drivers/video/fbsysfs.c          | 19 ++++++++++-----
 drivers/video/sh_mobile_lcdcfb.c | 10 ++++----
 3 files changed, 51 insertions(+), 28 deletions(-)

diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index dacaf74256a3..010d19105ebc 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -1108,14 +1108,16 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
 	case FBIOPUT_VSCREENINFO:
 		if (copy_from_user(&var, argp, sizeof(var)))
 			return -EFAULT;
-		if (!lock_fb_info(info))
-			return -ENODEV;
 		console_lock();
+		if (!lock_fb_info(info)) {
+			console_unlock();
+			return -ENODEV;
+		}
 		info->flags |= FBINFO_MISC_USEREVENT;
 		ret = fb_set_var(info, &var);
 		info->flags &= ~FBINFO_MISC_USEREVENT;
-		console_unlock();
 		unlock_fb_info(info);
+		console_unlock();
 		if (!ret && copy_to_user(argp, &var, sizeof(var)))
 			ret = -EFAULT;
 		break;
@@ -1144,12 +1146,14 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
 	case FBIOPAN_DISPLAY:
 		if (copy_from_user(&var, argp, sizeof(var)))
 			return -EFAULT;
-		if (!lock_fb_info(info))
-			return -ENODEV;
 		console_lock();
+		if (!lock_fb_info(info)) {
+			console_unlock();
+			return -ENODEV;
+		}
 		ret = fb_pan_display(info, &var);
-		console_unlock();
 		unlock_fb_info(info);
+		console_unlock();
 		if (ret == 0 && copy_to_user(argp, &var, sizeof(var)))
 			return -EFAULT;
 		break;
@@ -1184,23 +1188,27 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
 			break;
 		}
 		event.data = &con2fb;
-		if (!lock_fb_info(info))
-			return -ENODEV;
 		console_lock();
+		if (!lock_fb_info(info)) {
+			console_unlock();
+			return -ENODEV;
+		}
 		event.info = info;
 		ret = fb_notifier_call_chain(FB_EVENT_SET_CONSOLE_MAP, &event);
-		console_unlock();
 		unlock_fb_info(info);
+		console_unlock();
 		break;
 	case FBIOBLANK:
-		if (!lock_fb_info(info))
-			return -ENODEV;
 		console_lock();
+		if (!lock_fb_info(info)) {
+			console_unlock();
+			return -ENODEV;
+		}
 		info->flags |= FBINFO_MISC_USEREVENT;
 		ret = fb_blank(info, arg);
 		info->flags &= ~FBINFO_MISC_USEREVENT;
-		console_unlock();
 		unlock_fb_info(info);
+		console_unlock();
 		break;
 	default:
 		if (!lock_fb_info(info))
@@ -1660,12 +1668,15 @@ static int do_register_framebuffer(struct fb_info *fb_info)
 	registered_fb[i] = fb_info;
 
 	event.info = fb_info;
-	if (!lock_fb_info(fb_info))
-		return -ENODEV;
 	console_lock();
+	if (!lock_fb_info(fb_info)) {
+		console_unlock();
+		return -ENODEV;
+	}
+
 	fb_notifier_call_chain(FB_EVENT_FB_REGISTERED, &event);
-	console_unlock();
 	unlock_fb_info(fb_info);
+	console_unlock();
 	return 0;
 }
 
@@ -1678,13 +1689,16 @@ static int do_unregister_framebuffer(struct fb_info *fb_info)
 	if (i < 0 || i >= FB_MAX || registered_fb[i] != fb_info)
 		return -EINVAL;
 
-	if (!lock_fb_info(fb_info))
-		return -ENODEV;
 	console_lock();
+	if (!lock_fb_info(fb_info)) {
+		console_unlock();
+		return -ENODEV;
+	}
+
 	event.info = fb_info;
 	ret = fb_notifier_call_chain(FB_EVENT_FB_UNBIND, &event);
-	console_unlock();
 	unlock_fb_info(fb_info);
+	console_unlock();
 
 	if (ret)
 		return -EINVAL;
diff --git a/drivers/video/fbsysfs.c b/drivers/video/fbsysfs.c
index ef476b02fbe5..53444ac19fe0 100644
--- a/drivers/video/fbsysfs.c
+++ b/drivers/video/fbsysfs.c
@@ -177,9 +177,12 @@ static ssize_t store_modes(struct device *device,
 	if (i * sizeof(struct fb_videomode) != count)
 		return -EINVAL;
 
-	if (!lock_fb_info(fb_info))
-		return -ENODEV;
 	console_lock();
+	if (!lock_fb_info(fb_info)) {
+		console_unlock();
+		return -ENODEV;
+	}
+
 	list_splice(&fb_info->modelist, &old_list);
 	fb_videomode_to_modelist((const struct fb_videomode *)buf, i,
 				 &fb_info->modelist);
@@ -189,8 +192,8 @@ static ssize_t store_modes(struct device *device,
 	} else
 		fb_destroy_modelist(&old_list);
 
-	console_unlock();
 	unlock_fb_info(fb_info);
+	console_unlock();
 
 	return 0;
 }
@@ -404,12 +407,16 @@ static ssize_t store_fbstate(struct device *device,
 
 	state = simple_strtoul(buf, &last, 0);
 
-	if (!lock_fb_info(fb_info))
-		return -ENODEV;
 	console_lock();
+	if (!lock_fb_info(fb_info)) {
+		console_unlock();
+		return -ENODEV;
+	}
+
 	fb_set_suspend(fb_info, (int)state);
-	console_unlock();
+
 	unlock_fb_info(fb_info);
+	console_unlock();
 
 	return count;
 }
diff --git a/drivers/video/sh_mobile_lcdcfb.c b/drivers/video/sh_mobile_lcdcfb.c
index eaeae0fd0962..ab85ad6c25ec 100644
--- a/drivers/video/sh_mobile_lcdcfb.c
+++ b/drivers/video/sh_mobile_lcdcfb.c
@@ -574,8 +574,9 @@ static int sh_mobile_lcdc_display_notify(struct sh_mobile_lcdc_chan *ch,
 	switch (event) {
 	case SH_MOBILE_LCDC_EVENT_DISPLAY_CONNECT:
 		/* HDMI plug in */
+		console_lock();
 		if (lock_fb_info(info)) {
-			console_lock();
+
 
 			ch->display.width = monspec->max_x * 10;
 			ch->display.height = monspec->max_y * 10;
@@ -594,19 +595,20 @@ static int sh_mobile_lcdc_display_notify(struct sh_mobile_lcdc_chan *ch,
 				fb_set_suspend(info, 0);
 			}
 
-			console_unlock();
+
 			unlock_fb_info(info);
 		}
+		console_unlock();
 		break;
 
 	case SH_MOBILE_LCDC_EVENT_DISPLAY_DISCONNECT:
 		/* HDMI disconnect */
+		console_lock();
 		if (lock_fb_info(info)) {
-			console_lock();
 			fb_set_suspend(info, 1);
-			console_unlock();
 			unlock_fb_info(info);
 		}
+		console_unlock();
 		break;
 
 	case SH_MOBILE_LCDC_EVENT_DISPLAY_MODE:
-- 
cgit 


From 9b3d423707c3b1f6633be1be7e959623e10c596b Mon Sep 17 00:00:00 2001
From: Jiada Wang <jiada_wang@mentor.com>
Date: Wed, 30 Oct 2013 04:25:51 -0700
Subject: ARM: i.MX6q: fix the wrong parent of can_root clock

instead of pll3_usb_otg the parent of can_root clock
should be pll3_60m.

Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/clk-imx6q.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
index d756d91fd741..edd522e8c4af 100644
--- a/arch/arm/mach-imx/clk-imx6q.c
+++ b/arch/arm/mach-imx/clk-imx6q.c
@@ -298,7 +298,7 @@ static void __init imx6q_clocks_init(struct device_node *ccm_node)
 	clk[asrc_podf]        = imx_clk_divider("asrc_podf",        "asrc_pred",         base + 0x30, 9,  3);
 	clk[spdif_pred]       = imx_clk_divider("spdif_pred",       "spdif_sel",         base + 0x30, 25, 3);
 	clk[spdif_podf]       = imx_clk_divider("spdif_podf",       "spdif_pred",        base + 0x30, 22, 3);
-	clk[can_root]         = imx_clk_divider("can_root",         "pll3_usb_otg",      base + 0x20, 2,  6);
+	clk[can_root]         = imx_clk_divider("can_root",         "pll3_60m",          base + 0x20, 2,  6);
 	clk[ecspi_root]       = imx_clk_divider("ecspi_root",       "pll3_60m",          base + 0x38, 19, 6);
 	clk[gpu2d_core_podf]  = imx_clk_divider("gpu2d_core_podf",  "gpu2d_core_sel",    base + 0x18, 23, 3);
 	clk[gpu3d_core_podf]  = imx_clk_divider("gpu3d_core_podf",  "gpu3d_core_sel",    base + 0x18, 26, 3);
-- 
cgit 


From b6e23bb63f28f0a8ffa7cf9824fa48000c08f9b2 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Mon, 28 Oct 2013 16:37:12 +0800
Subject: ARM: imx: remove imx_src_prepare_restart() call

There is ~10% possibility that the following emergency restart command
fails to reboot imx6q.

$ echo b > /proc/sysrq-trigger

The IMX restart routine mxc_restart() assumes that it will always run on
primary core, and will call imx_src_prepare_restart() to disable
secondary cores in order to get them come to online in the following
boot.  However, the assumption is only true for normal kernel_restart()
case where migrate_to_reboot_cpu() will be called to migrate to primary
core, but not necessarily true for emergency_restart() case.  So when
emergency_restart() calls into mxc_restart() on any secondary core,
system will hang immediately once imx_src_prepare_restart() is called
to disabled secondary cores.  Since emergency_restart() is defined as a
function that is safe to call in interrupt context, we cannot just call
migrate_to_reboot_cpu() to fix the issue.

Fortunately, we just found that the issue can be fixed at imx6q platform
level.  We used to call imx_src_prepare_restart() to disable all
secondary cores before resetting hardware.  Otherwise, the secondary
will fail come to online in the reboot.  However, we recently found that
after commit 6050d18 (ARM: imx: reset core along with enable/disable
operation) comes to play, we do not need to reset the secondary cores
any more.  That said, mxc_restart() now can run on any core to reboot
the system, as long as we remove the imx_src_prepare_restart() call from
mxc_restart().

So let's simply remove imx_src_prepare_restart() call to fix the above
emergency restart failure.

Reported-by: Jiada Wang <jiada_wang@mentor.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/common.h |  5 -----
 arch/arm/mach-imx/src.c    | 15 ---------------
 arch/arm/mach-imx/system.c |  3 ---
 3 files changed, 23 deletions(-)

diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h
index 7cbe22d0c6e9..24a7899e36a8 100644
--- a/arch/arm/mach-imx/common.h
+++ b/arch/arm/mach-imx/common.h
@@ -127,11 +127,6 @@ static inline void imx_smp_prepare(void) {}
 static inline void imx_scu_standby_enable(void) {}
 #endif
 void imx_src_init(void);
-#ifdef CONFIG_HAVE_IMX_SRC
-void imx_src_prepare_restart(void);
-#else
-static inline void imx_src_prepare_restart(void) {}
-#endif
 void imx_gpc_init(void);
 void imx_gpc_pre_suspend(void);
 void imx_gpc_post_resume(void);
diff --git a/arch/arm/mach-imx/src.c b/arch/arm/mach-imx/src.c
index 4754373e7e7d..45f7f4e0a447 100644
--- a/arch/arm/mach-imx/src.c
+++ b/arch/arm/mach-imx/src.c
@@ -115,21 +115,6 @@ void imx_set_cpu_arg(int cpu, u32 arg)
 	writel_relaxed(arg, src_base + SRC_GPR1 + cpu * 8 + 4);
 }
 
-void imx_src_prepare_restart(void)
-{
-	u32 val;
-
-	/* clear enable bits of secondary cores */
-	spin_lock(&scr_lock);
-	val = readl_relaxed(src_base + SRC_SCR);
-	val &= ~(0x7 << BP_SRC_SCR_CORE1_ENABLE);
-	writel_relaxed(val, src_base + SRC_SCR);
-	spin_unlock(&scr_lock);
-
-	/* clear persistent entry register of primary core */
-	writel_relaxed(0, src_base + SRC_GPR1);
-}
-
 void __init imx_src_init(void)
 {
 	struct device_node *np;
diff --git a/arch/arm/mach-imx/system.c b/arch/arm/mach-imx/system.c
index e6edcd38b282..826b72ba08d9 100644
--- a/arch/arm/mach-imx/system.c
+++ b/arch/arm/mach-imx/system.c
@@ -42,9 +42,6 @@ void mxc_restart(enum reboot_mode mode, const char *cmd)
 {
 	unsigned int wcr_enable;
 
-	if (cpu_is_imx6q() || cpu_is_imx6dl())
-		imx_src_prepare_restart();
-
 	if (wdog_clk)
 		clk_enable(wdog_clk);
 
-- 
cgit 


From 2c11b57a8a8d83ffa91aebb12c90488c8802e6f3 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Thu, 31 Oct 2013 10:35:40 +0800
Subject: ARM: imx: improve mxc_restart() on the SRC bit writes

The current comment in the code does not make it clear why the double writes
on SRC bit is needed.  Let's quote the errata to get it clear.  Also, to
ensure there are at least 2 writes happen in the same one 32kHz period,
we actually need 3 writes.  Let's add the third one.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/system.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-imx/system.c b/arch/arm/mach-imx/system.c
index 826b72ba08d9..5e3027d3692f 100644
--- a/arch/arm/mach-imx/system.c
+++ b/arch/arm/mach-imx/system.c
@@ -52,7 +52,14 @@ void mxc_restart(enum reboot_mode mode, const char *cmd)
 
 	/* Assert SRS signal */
 	__raw_writew(wcr_enable, wdog_base);
-	/* write twice to ensure the request will not get ignored */
+	/*
+	 * Due to imx6q errata ERR004346 (WDOG: WDOG SRS bit requires to be
+	 * written twice), we add another two writes to ensure there must be at
+	 * least two writes happen in the same one 32kHz clock period.  We save
+	 * the target check here, since the writes shouldn't be a huge burden
+	 * for other platforms.
+	 */
+	__raw_writew(wcr_enable, wdog_base);
 	__raw_writew(wcr_enable, wdog_base);
 
 	/* wait for reset to assert... */
-- 
cgit 


From 5d48217210a0ae4a08953b7e3db95ed5a992673d Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Thu, 31 Oct 2013 16:37:12 +0800
Subject: ARM: imx: v7_cpu_resume() is needed by imx6sl build

Building a kernel with the following options,

  CONFIG_SMP=n
  CONFIG_PM=y
  CONFIG_SOC_IMX6SL=y
  CONFIG_SOC_IMX6Q=n

we will see the build error below.

  arch/arm/mach-imx/built-in.o: In function `imx6q_pm_enter':
  platform-spi_imx.c:(.text+0x2648): undefined reference to `v7_cpu_resume'
  make[1]: *** [vmlinux] Error 1

This is because that v7_cpu_resume() implemented in headsmp.S is also
needed by imx6sl build.  Let's build headsmp.S for CONFIG_SOC_IMX6SL as
well.

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index bbe1f5bb799c..1789e2b31903 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -102,8 +102,8 @@ obj-$(CONFIG_SOC_IMX6SL) += clk-imx6sl.o mach-imx6sl.o
 
 ifeq ($(CONFIG_PM),y)
 obj-$(CONFIG_SOC_IMX6Q) += pm-imx6q.o headsmp.o
-# i.MX6SL reuses pm-imx6q.c
-obj-$(CONFIG_SOC_IMX6SL) += pm-imx6q.o
+# i.MX6SL reuses i.MX6Q code
+obj-$(CONFIG_SOC_IMX6SL) += pm-imx6q.o headsmp.o
 endif
 
 # i.MX5 based machines
-- 
cgit 


From ec9de6cd95a1ee326269699777301d5e1d5ddb75 Mon Sep 17 00:00:00 2001
From: Lothar Waßmann <LW@KARO-electronics.de>
Date: Thu, 31 Oct 2013 12:55:48 +0100
Subject: ARM: imx6q: add missing sentinel to divider table
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The clk_enet_ref_table[] is missing a final empty entry as end of list
marker. Also make the existing markers more obvious.

Signed-off-by: Lothar Waßmann <LW@KARO-electronics.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/clk-imx6q.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
index edd522e8c4af..04cfd0fcb0e5 100644
--- a/arch/arm/mach-imx/clk-imx6q.c
+++ b/arch/arm/mach-imx/clk-imx6q.c
@@ -122,13 +122,14 @@ static struct clk_div_table clk_enet_ref_table[] = {
 	{ .val = 1, .div = 10, },
 	{ .val = 2, .div = 5, },
 	{ .val = 3, .div = 4, },
+	{ /* sentinel */ }
 };
 
 static struct clk_div_table post_div_table[] = {
 	{ .val = 2, .div = 1, },
 	{ .val = 1, .div = 2, },
 	{ .val = 0, .div = 4, },
-	{ }
+	{ /* sentinel */ }
 };
 
 static struct clk_div_table video_div_table[] = {
@@ -136,7 +137,7 @@ static struct clk_div_table video_div_table[] = {
 	{ .val = 1, .div = 2, },
 	{ .val = 2, .div = 1, },
 	{ .val = 3, .div = 4, },
-	{ }
+	{ /* sentinel */ }
 };
 
 static void __init imx6q_clocks_init(struct device_node *ccm_node)
-- 
cgit 


From 322503a15740bd9383bb4ed452e5dd5a40598170 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Wed, 30 Oct 2013 15:12:55 +0800
Subject: ARM: imx: add sleep for pllv3 relock

The pllv3 relock time varies in the range of 50us ~ 500us, depending on
the specific PLL type, e.g. 50us for ARM PLL and 450us for Audio/Video
PLL.  Let's add a usleep_range() call instead of doing busy wait during
relock.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/clk-pllv3.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-imx/clk-pllv3.c b/arch/arm/mach-imx/clk-pllv3.c
index f6640b6a7b31..c9ca19184420 100644
--- a/arch/arm/mach-imx/clk-pllv3.c
+++ b/arch/arm/mach-imx/clk-pllv3.c
@@ -12,6 +12,7 @@
 
 #include <linux/clk.h>
 #include <linux/clk-provider.h>
+#include <linux/delay.h>
 #include <linux/io.h>
 #include <linux/slab.h>
 #include <linux/jiffies.h>
@@ -66,6 +67,7 @@ static int clk_pllv3_prepare(struct clk_hw *hw)
 			break;
 		if (time_after(jiffies, timeout))
 			break;
+		usleep_range(50, 500);
 	} while (1);
 
 	if (readl_relaxed(pll->base) & BM_PLL_LOCK)
-- 
cgit 


From bc3b84da8a55752d8c54005e558d59ac10fe9953 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Wed, 30 Oct 2013 15:56:22 +0800
Subject: ARM: imx: pllv3 needs relock in .set_rate() call

The pllv3 nees relock not only when powering up but also when rate
changes.  The patch creates a helper function clk_pllv3_wait_lock() and
moves the relock code from clk_pllv3_prepare() into there, so that
both .prepare() and .set_rate() hooks of pllv3 can call into the helper
for relocking.

Since relock is only needed when PLL is powered up while clk_set_rate()
could be called before clk is prepared, we need to add a check in
clk_pllv3_wait_lock() to skip the relock if PLL is not powered.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/clk-pllv3.c | 43 +++++++++++++++++++++++++------------------
 1 file changed, 25 insertions(+), 18 deletions(-)

diff --git a/arch/arm/mach-imx/clk-pllv3.c b/arch/arm/mach-imx/clk-pllv3.c
index c9ca19184420..df1736232961 100644
--- a/arch/arm/mach-imx/clk-pllv3.c
+++ b/arch/arm/mach-imx/clk-pllv3.c
@@ -46,21 +46,15 @@ struct clk_pllv3 {
 
 #define to_clk_pllv3(_hw) container_of(_hw, struct clk_pllv3, hw)
 
-static int clk_pllv3_prepare(struct clk_hw *hw)
+static int clk_pllv3_wait_lock(struct clk_pllv3 *pll)
 {
-	struct clk_pllv3 *pll = to_clk_pllv3(hw);
-	unsigned long timeout;
-	u32 val;
+	unsigned long timeout = jiffies + msecs_to_jiffies(10);
+	u32 val = readl_relaxed(pll->base) & BM_PLL_POWER;
 
-	val = readl_relaxed(pll->base);
-	val &= ~BM_PLL_BYPASS;
-	if (pll->powerup_set)
-		val |= BM_PLL_POWER;
-	else
-		val &= ~BM_PLL_POWER;
-	writel_relaxed(val, pll->base);
+	/* No need to wait for lock when pll is not powered up */
+	if ((pll->powerup_set && !val) || (!pll->powerup_set && val))
+		return 0;
 
-	timeout = jiffies + msecs_to_jiffies(10);
 	/* Wait for PLL to lock */
 	do {
 		if (readl_relaxed(pll->base) & BM_PLL_LOCK)
@@ -70,10 +64,23 @@ static int clk_pllv3_prepare(struct clk_hw *hw)
 		usleep_range(50, 500);
 	} while (1);
 
-	if (readl_relaxed(pll->base) & BM_PLL_LOCK)
-		return 0;
+	return readl_relaxed(pll->base) & BM_PLL_LOCK ? 0 : -ETIMEDOUT;
+}
+
+static int clk_pllv3_prepare(struct clk_hw *hw)
+{
+	struct clk_pllv3 *pll = to_clk_pllv3(hw);
+	u32 val;
+
+	val = readl_relaxed(pll->base);
+	val &= ~BM_PLL_BYPASS;
+	if (pll->powerup_set)
+		val |= BM_PLL_POWER;
 	else
-		return -ETIMEDOUT;
+		val &= ~BM_PLL_POWER;
+	writel_relaxed(val, pll->base);
+
+	return clk_pllv3_wait_lock(pll);
 }
 
 static void clk_pllv3_unprepare(struct clk_hw *hw)
@@ -148,7 +155,7 @@ static int clk_pllv3_set_rate(struct clk_hw *hw, unsigned long rate,
 	val |= div;
 	writel_relaxed(val, pll->base);
 
-	return 0;
+	return clk_pllv3_wait_lock(pll);
 }
 
 static const struct clk_ops clk_pllv3_ops = {
@@ -204,7 +211,7 @@ static int clk_pllv3_sys_set_rate(struct clk_hw *hw, unsigned long rate,
 	val |= div;
 	writel_relaxed(val, pll->base);
 
-	return 0;
+	return clk_pllv3_wait_lock(pll);
 }
 
 static const struct clk_ops clk_pllv3_sys_ops = {
@@ -278,7 +285,7 @@ static int clk_pllv3_av_set_rate(struct clk_hw *hw, unsigned long rate,
 	writel_relaxed(mfn, pll->base + PLL_NUM_OFFSET);
 	writel_relaxed(mfd, pll->base + PLL_DENOM_OFFSET);
 
-	return 0;
+	return clk_pllv3_wait_lock(pll);
 }
 
 static const struct clk_ops clk_pllv3_av_ops = {
-- 
cgit 


From 43c9b9e8a4c64b1dd3026ab233703a4321ac6d7c Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Thu, 31 Oct 2013 09:46:17 +0800
Subject: ARM: imx: set up pllv3 POWER and BYPASS sequentially

Currently, POWER and BYPASS bits are set up in a single write to pllv3
register.  This causes problem occasionally from the IPU/HDMI testing.
Let's follow FSL BSP code to set up POWER bit, relock, and then BYPASS
sequentially.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/mach-imx/clk-pllv3.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-imx/clk-pllv3.c b/arch/arm/mach-imx/clk-pllv3.c
index df1736232961..61364050fccd 100644
--- a/arch/arm/mach-imx/clk-pllv3.c
+++ b/arch/arm/mach-imx/clk-pllv3.c
@@ -71,16 +71,24 @@ static int clk_pllv3_prepare(struct clk_hw *hw)
 {
 	struct clk_pllv3 *pll = to_clk_pllv3(hw);
 	u32 val;
+	int ret;
 
 	val = readl_relaxed(pll->base);
-	val &= ~BM_PLL_BYPASS;
 	if (pll->powerup_set)
 		val |= BM_PLL_POWER;
 	else
 		val &= ~BM_PLL_POWER;
 	writel_relaxed(val, pll->base);
 
-	return clk_pllv3_wait_lock(pll);
+	ret = clk_pllv3_wait_lock(pll);
+	if (ret)
+		return ret;
+
+	val = readl_relaxed(pll->base);
+	val &= ~BM_PLL_BYPASS;
+	writel_relaxed(val, pll->base);
+
+	return 0;
 }
 
 static void clk_pllv3_unprepare(struct clk_hw *hw)
-- 
cgit 


From 036e29918078e38b0b127b89deb4c595028c1bc0 Mon Sep 17 00:00:00 2001
From: Alexander Shiyan <shc_work@mail.ru>
Date: Tue, 5 Nov 2013 18:00:18 +0400
Subject: ARM: dts: i.MX51: Fix OTG PHY clock

Proper clock ID for USB OTG PHY is "usb_phy_gate".
The patch changes this mismatch.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx51.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx51.dtsi b/arch/arm/boot/dts/imx51.dtsi
index f4dcff3a9969..4bcdd3ad15e5 100644
--- a/arch/arm/boot/dts/imx51.dtsi
+++ b/arch/arm/boot/dts/imx51.dtsi
@@ -190,7 +190,7 @@
 
 			usbphy0: usbphy@0 {
 				compatible = "usb-nop-xceiv";
-				clocks = <&clks 124>;
+				clocks = <&clks 75>;
 				clock-names = "main_clk";
 				status = "okay";
 			};
-- 
cgit 


From c11eede69b6ad0ac44ebc1e021a8d2699c5f1f8f Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Sun, 10 Nov 2013 23:19:08 -0600
Subject: powerpc: add missing explicit OF includes for ppc

Commit b5b4bb3f6a11f9 (of: only include prom.h on sparc) removed implicit
includes of of_*.h headers by powerpc's prom.h. Some components were
missed in initial clean-up patch, so add the necessary includes to fix
powerpc builds.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-ide@vger.kernel.org
Cc: linux-crypto@vger.kernel.org
---
 arch/powerpc/platforms/85xx/ppa8548.c     | 1 +
 arch/powerpc/platforms/85xx/sgy_cts1000.c | 1 +
 arch/powerpc/platforms/85xx/smp.c         | 1 +
 arch/powerpc/sysdev/ehv_pic.c             | 1 +
 arch/powerpc/sysdev/ppc4xx_ocm.c          | 1 +
 arch/powerpc/sysdev/xilinx_intc.c         | 1 +
 drivers/ata/sata_dwc_460ex.c              | 2 ++
 drivers/char/hw_random/ppc4xx-rng.c       | 1 +
 drivers/clk/clk-ppc-corenet.c             | 1 +
 drivers/crypto/amcc/crypto4xx_core.c      | 3 +++
 drivers/dma/ppc4xx/adma.c                 | 2 ++
 drivers/mtd/nand/socrates_nand.c          | 1 +
 drivers/pcmcia/m8xx_pcmcia.c              | 2 ++
 drivers/spi/spi-ppc4xx.c                  | 2 ++
 drivers/watchdog/pika_wdt.c               | 1 +
 15 files changed, 21 insertions(+)

diff --git a/arch/powerpc/platforms/85xx/ppa8548.c b/arch/powerpc/platforms/85xx/ppa8548.c
index 6a7704b92c3b..3daff7c63569 100644
--- a/arch/powerpc/platforms/85xx/ppa8548.c
+++ b/arch/powerpc/platforms/85xx/ppa8548.c
@@ -19,6 +19,7 @@
 #include <linux/init.h>
 #include <linux/reboot.h>
 #include <linux/seq_file.h>
+#include <linux/of_fdt.h>
 #include <linux/of_platform.h>
 
 #include <asm/machdep.h>
diff --git a/arch/powerpc/platforms/85xx/sgy_cts1000.c b/arch/powerpc/platforms/85xx/sgy_cts1000.c
index 7179726ba5c5..b9197cea1854 100644
--- a/arch/powerpc/platforms/85xx/sgy_cts1000.c
+++ b/arch/powerpc/platforms/85xx/sgy_cts1000.c
@@ -16,6 +16,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/of_gpio.h>
+#include <linux/of_irq.h>
 #include <linux/workqueue.h>
 #include <linux/reboot.h>
 #include <linux/interrupt.h>
diff --git a/arch/powerpc/platforms/85xx/smp.c b/arch/powerpc/platforms/85xx/smp.c
index 281b7f01df63..393f975ab397 100644
--- a/arch/powerpc/platforms/85xx/smp.c
+++ b/arch/powerpc/platforms/85xx/smp.c
@@ -15,6 +15,7 @@
 #include <linux/init.h>
 #include <linux/delay.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <linux/kexec.h>
 #include <linux/highmem.h>
 #include <linux/cpu.h>
diff --git a/arch/powerpc/sysdev/ehv_pic.c b/arch/powerpc/sysdev/ehv_pic.c
index 9cd0e60716fe..b74085cea1af 100644
--- a/arch/powerpc/sysdev/ehv_pic.c
+++ b/arch/powerpc/sysdev/ehv_pic.c
@@ -19,6 +19,7 @@
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
diff --git a/arch/powerpc/sysdev/ppc4xx_ocm.c b/arch/powerpc/sysdev/ppc4xx_ocm.c
index 1b15f93479c3..b7c43453236d 100644
--- a/arch/powerpc/sysdev/ppc4xx_ocm.c
+++ b/arch/powerpc/sysdev/ppc4xx_ocm.c
@@ -26,6 +26,7 @@
 #include <linux/kernel.h>
 #include <linux/dma-mapping.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <asm/rheap.h>
 #include <asm/ppc4xx_ocm.h>
 #include <linux/slab.h>
diff --git a/arch/powerpc/sysdev/xilinx_intc.c b/arch/powerpc/sysdev/xilinx_intc.c
index f4fdc94ad2c0..83f943a8e0db 100644
--- a/arch/powerpc/sysdev/xilinx_intc.c
+++ b/arch/powerpc/sysdev/xilinx_intc.c
@@ -24,6 +24,7 @@
 #include <linux/irq.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <asm/io.h>
 #include <asm/processor.h>
 #include <asm/i8259.h>
diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
index 2e391730e8be..523524b68022 100644
--- a/drivers/ata/sata_dwc_460ex.c
+++ b/drivers/ata/sata_dwc_460ex.c
@@ -31,6 +31,8 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/device.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/libata.h>
diff --git a/drivers/char/hw_random/ppc4xx-rng.c b/drivers/char/hw_random/ppc4xx-rng.c
index 732c330805fd..521f76b0934b 100644
--- a/drivers/char/hw_random/ppc4xx-rng.c
+++ b/drivers/char/hw_random/ppc4xx-rng.c
@@ -13,6 +13,7 @@
 #include <linux/platform_device.h>
 #include <linux/hw_random.h>
 #include <linux/delay.h>
+#include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <asm/io.h>
 
diff --git a/drivers/clk/clk-ppc-corenet.c b/drivers/clk/clk-ppc-corenet.c
index e9587073bd32..c4f76ed914b0 100644
--- a/drivers/clk/clk-ppc-corenet.c
+++ b/drivers/clk/clk-ppc-corenet.c
@@ -11,6 +11,7 @@
 #include <linux/io.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/of.h>
 #include <linux/slab.h>
diff --git a/drivers/crypto/amcc/crypto4xx_core.c b/drivers/crypto/amcc/crypto4xx_core.c
index f88e3d8f6b64..efaf6302405f 100644
--- a/drivers/crypto/amcc/crypto4xx_core.c
+++ b/drivers/crypto/amcc/crypto4xx_core.c
@@ -27,6 +27,9 @@
 #include <linux/dma-mapping.h>
 #include <linux/platform_device.h>
 #include <linux/init.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/slab.h>
 #include <asm/dcr.h>
diff --git a/drivers/dma/ppc4xx/adma.c b/drivers/dma/ppc4xx/adma.c
index 370ff8265630..e24b5ef486b5 100644
--- a/drivers/dma/ppc4xx/adma.c
+++ b/drivers/dma/ppc4xx/adma.c
@@ -42,6 +42,8 @@
 #include <linux/uaccess.h>
 #include <linux/proc_fs.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <asm/dcr.h>
 #include <asm/dcr-regs.h>
diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c
index 09dde7d27178..49bd9155cb19 100644
--- a/drivers/mtd/nand/socrates_nand.c
+++ b/drivers/mtd/nand/socrates_nand.c
@@ -15,6 +15,7 @@
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
+#include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/io.h>
 
diff --git a/drivers/pcmcia/m8xx_pcmcia.c b/drivers/pcmcia/m8xx_pcmcia.c
index 18c0d8d1ddf7..182034d2ef58 100644
--- a/drivers/pcmcia/m8xx_pcmcia.c
+++ b/drivers/pcmcia/m8xx_pcmcia.c
@@ -48,7 +48,9 @@
 #include <linux/interrupt.h>
 #include <linux/fsl_devices.h>
 #include <linux/bitops.h>
+#include <linux/of_address.h>
 #include <linux/of_device.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 
 #include <asm/io.h>
diff --git a/drivers/spi/spi-ppc4xx.c b/drivers/spi/spi-ppc4xx.c
index 0ee53c25ba58..19d615bd5d67 100644
--- a/drivers/spi/spi-ppc4xx.c
+++ b/drivers/spi/spi-ppc4xx.c
@@ -29,6 +29,8 @@
 #include <linux/slab.h>
 #include <linux/errno.h>
 #include <linux/wait.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/of_gpio.h>
 #include <linux/interrupt.h>
diff --git a/drivers/watchdog/pika_wdt.c b/drivers/watchdog/pika_wdt.c
index 7d3d471f810c..329bc60ad7a2 100644
--- a/drivers/watchdog/pika_wdt.c
+++ b/drivers/watchdog/pika_wdt.c
@@ -22,6 +22,7 @@
 #include <linux/bitops.h>
 #include <linux/uaccess.h>
 #include <linux/io.h>
+#include <linux/of_address.h>
 #include <linux/of_platform.h>
 
 #define DRV_NAME "PIKA-WDT"
-- 
cgit 


From 0c52db8cca7b033d03ebcda652158e2311d5ac64 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 8 Nov 2013 13:03:57 +0100
Subject: ALSA: hda - Control SPDIF out pin on MacBookPro 11,2

The SPDIF output MBP11,2 requires the pin control to be set/cleared
for turning on/off the optical SPDIF.  The red light turns off only
when the corresponding pin control is cleared (or powered to D3).

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=64401
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_cirrus.c | 56 +++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 55 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c
index 072755c8289c..fc492ac24caa 100644
--- a/sound/pci/hda/patch_cirrus.c
+++ b/sound/pci/hda/patch_cirrus.c
@@ -47,6 +47,10 @@ struct cs_spec {
 	unsigned int spdif_present:1;
 	unsigned int sense_b:1;
 	hda_nid_t vendor_nid;
+
+	/* for MBP SPDIF control */
+	int (*spdif_sw_put)(struct snd_kcontrol *kcontrol,
+			    struct snd_ctl_elem_value *ucontrol);
 };
 
 /* available models with CS420x */
@@ -331,10 +335,21 @@ static int cs_init(struct hda_codec *codec)
 	return 0;
 }
 
+static int cs_build_controls(struct hda_codec *codec)
+{
+	int err;
+
+	err = snd_hda_gen_build_controls(codec);
+	if (err < 0)
+		return err;
+	snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_BUILD);
+	return 0;
+}
+
 #define cs_free		snd_hda_gen_free
 
 static const struct hda_codec_ops cs_patch_ops = {
-	.build_controls = snd_hda_gen_build_controls,
+	.build_controls = cs_build_controls,
 	.build_pcms = snd_hda_gen_build_pcms,
 	.init = cs_init,
 	.free = cs_free,
@@ -599,12 +614,14 @@ static int patch_cs420x(struct hda_codec *codec)
 enum {
 	CS4208_MAC_AUTO,
 	CS4208_MBA6,
+	CS4208_MBP11,
 	CS4208_GPIO0,
 };
 
 static const struct hda_model_fixup cs4208_models[] = {
 	{ .id = CS4208_GPIO0, .name = "gpio0" },
 	{ .id = CS4208_MBA6, .name = "mba6" },
+	{ .id = CS4208_MBP11, .name = "mbp11" },
 	{}
 };
 
@@ -615,6 +632,7 @@ static const struct snd_pci_quirk cs4208_fixup_tbl[] = {
 
 /* codec SSID matching */
 static const struct snd_pci_quirk cs4208_mac_fixup_tbl[] = {
+	SND_PCI_QUIRK(0x106b, 0x5e00, "MacBookPro 11,2", CS4208_MBP11),
 	SND_PCI_QUIRK(0x106b, 0x7100, "MacBookAir 6,1", CS4208_MBA6),
 	SND_PCI_QUIRK(0x106b, 0x7200, "MacBookAir 6,2", CS4208_MBA6),
 	{} /* terminator */
@@ -646,6 +664,36 @@ static void cs4208_fixup_mac(struct hda_codec *codec,
 	snd_hda_apply_fixup(codec, action);
 }
 
+static int cs4208_spdif_sw_put(struct snd_kcontrol *kcontrol,
+			       struct snd_ctl_elem_value *ucontrol)
+{
+	struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
+	struct cs_spec *spec = codec->spec;
+	hda_nid_t pin = spec->gen.autocfg.dig_out_pins[0];
+	int pinctl = ucontrol->value.integer.value[0] ? PIN_OUT : 0;
+
+	snd_hda_set_pin_ctl_cache(codec, pin, pinctl);
+	return spec->spdif_sw_put(kcontrol, ucontrol);
+}
+
+/* hook the SPDIF switch */
+static void cs4208_fixup_spdif_switch(struct hda_codec *codec,
+				      const struct hda_fixup *fix, int action)
+{
+	if (action == HDA_FIXUP_ACT_BUILD) {
+		struct cs_spec *spec = codec->spec;
+		struct snd_kcontrol *kctl;
+
+		if (!spec->gen.autocfg.dig_out_pins[0])
+			return;
+		kctl = snd_hda_find_mixer_ctl(codec, "IEC958 Playback Switch");
+		if (!kctl)
+			return;
+		spec->spdif_sw_put = kctl->put;
+		kctl->put = cs4208_spdif_sw_put;
+	}
+}
+
 static const struct hda_fixup cs4208_fixups[] = {
 	[CS4208_MBA6] = {
 		.type = HDA_FIXUP_PINS,
@@ -653,6 +701,12 @@ static const struct hda_fixup cs4208_fixups[] = {
 		.chained = true,
 		.chain_id = CS4208_GPIO0,
 	},
+	[CS4208_MBP11] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = cs4208_fixup_spdif_switch,
+		.chained = true,
+		.chain_id = CS4208_GPIO0,
+	},
 	[CS4208_GPIO0] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = cs4208_fixup_gpio0,
-- 
cgit 


From a522409e9ce4605989bfe87793a2f09b00474e94 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 11 Nov 2013 22:21:33 +0800
Subject: ALSA: sparc: fix missing unlock on error in
 snd_cs4231_playback_prepare()

Add the missing unlock before return from function
snd_cs4231_playback_prepare() in the error handling
case.

Fixes: 5a19b178d7b4 ('ALSA: sparc/cs4231: Use WARN_ON() instead of BUG_ON()')
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/sparc/cs4231.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/sound/sparc/cs4231.c b/sound/sparc/cs4231.c
index b47f6fe6277f..dbb1b625eb2f 100644
--- a/sound/sparc/cs4231.c
+++ b/sound/sparc/cs4231.c
@@ -907,19 +907,24 @@ static int snd_cs4231_playback_prepare(struct snd_pcm_substream *substream)
 	struct snd_cs4231 *chip = snd_pcm_substream_chip(substream);
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	unsigned long flags;
+	int ret = 0;
 
 	spin_lock_irqsave(&chip->lock, flags);
 
 	chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE |
 					    CS4231_PLAYBACK_PIO);
 
-	if (WARN_ON(runtime->period_size > 0xffff + 1))
-		return -EINVAL;
+	if (WARN_ON(runtime->period_size > 0xffff + 1)) {
+		ret = -EINVAL;
+		goto out;
+	}
 
 	chip->p_periods_sent = 0;
+
+out:
 	spin_unlock_irqrestore(&chip->lock, flags);
 
-	return 0;
+	return ret;
 }
 
 static int snd_cs4231_capture_hw_params(struct snd_pcm_substream *substream,
-- 
cgit 


From 94908a39ce971f25c3695c334d88eec4d2837428 Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@iki.fi>
Date: Sun, 10 Nov 2013 21:24:04 +0200
Subject: ALSA: hda - hdmi: Use TFx channel positions instead of FxH

Channel map positions FLH, FCH, FRH duplicate positions TFL, TFC, TFR.
Both are the speakers above the front speakers (CEA uses "high" and USB
audio uses "top" nomenclature).

Since the USB audio code has used the TFx positions since v3.8
(04324ccc75f96, "ALSA: usb-audio: add channel map support") but the HDMI
code only just started using FxH in a5b7d510b2220cccb ("ALSA: hda -
hdmi: Fix channel maps with less common speakers") which is not yet in
any released kernel, standardize on TFx instead.

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index e68792311bb2..8aa104cba241 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -763,12 +763,12 @@ static struct channel_map_table map_tables[] = {
 	{ SNDRV_CHMAP_RC,	RC },
 	{ SNDRV_CHMAP_FLC,	FLC },
 	{ SNDRV_CHMAP_FRC,	FRC },
-	{ SNDRV_CHMAP_FLH,	FLH },
-	{ SNDRV_CHMAP_FRH,	FRH },
+	{ SNDRV_CHMAP_TFL,	FLH },
+	{ SNDRV_CHMAP_TFR,	FRH },
 	{ SNDRV_CHMAP_FLW,	FLW },
 	{ SNDRV_CHMAP_FRW,	FRW },
 	{ SNDRV_CHMAP_TC,	TC },
-	{ SNDRV_CHMAP_FCH,	FCH },
+	{ SNDRV_CHMAP_TFC,	FCH },
 	{} /* terminator */
 };
 
-- 
cgit 


From 71373fddf6dff7cf5e67923e6837fc4de28478ff Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@iki.fi>
Date: Sun, 10 Nov 2013 21:24:05 +0200
Subject: ALSA: usb: Fix wrong mapping of RLC and RRC channels

According to USB Audio spec v2 bits 25 and 26 of bmChannelConfig are
"Back Left of Center - BLC" and "Back Right of Center - BRC",
respectively.

They are currently assigned to ALSA channels BLC/BRC. However, the ALSA
BLC/BRC are actually the rather nonsensical "bottom left center" and
"bottom right center", so the channels will be assigned wrongly. The
comments in the USB code are also similarly wrong, so this is not
readily apparent without looking at the actual specification.

Fix the channel mapping by mapping bits 25 and 26 to RLC (Rear Left
Center) and RRC (Rear Right Center), respectively, instead.

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/stream.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/usb/stream.c b/sound/usb/stream.c
index d737d0e6e558..2fb71be5e100 100644
--- a/sound/usb/stream.c
+++ b/sound/usb/stream.c
@@ -273,8 +273,8 @@ static struct snd_pcm_chmap_elem *convert_chmap(int channels, unsigned int bits,
 		SNDRV_CHMAP_TSL,	/* top side left */
 		SNDRV_CHMAP_TSR,	/* top side right */
 		SNDRV_CHMAP_BC,		/* bottom center */
-		SNDRV_CHMAP_BLC,	/* bottom left center */
-		SNDRV_CHMAP_BRC,	/* bottom right center */
+		SNDRV_CHMAP_RLC,	/* back left of center */
+		SNDRV_CHMAP_RRC,	/* back right of center */
 		0 /* terminator */
 	};
 	struct snd_pcm_chmap_elem *chmap;
-- 
cgit 


From 13122e6ebf24d9f676d8a40edc2e9a265e89b628 Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@iki.fi>
Date: Sun, 10 Nov 2013 20:56:10 +0200
Subject: ALSA: hda - hdmi: Add error-checking to some codec reads

Add error checks to HBR status reads (both generic and ATI/AMD) and
ATI/AMD codec reads for ELD generation.

Unchecked errors in these just caused more errors later on (invalid
codec writes for the HBR ones and ELD parsing errors for the ATI/AMD ELD
ones), but it is better to catch them earlier.

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_eld.c    | 5 ++++-
 sound/pci/hda/patch_hdmi.c | 5 ++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c
index 32d3e3855a6e..e8c55f5a34ff 100644
--- a/sound/pci/hda/hda_eld.c
+++ b/sound/pci/hda/hda_eld.c
@@ -680,7 +680,7 @@ int snd_hdmi_get_eld_ati(struct hda_codec *codec, hda_nid_t nid,
 
 	spkalloc = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_SPEAKER_ALLOCATION, 0);
 
-	if (!spkalloc) {
+	if (spkalloc <= 0) {
 		snd_printd(KERN_INFO "HDMI ATI/AMD: no speaker allocation for ELD\n");
 		return -EINVAL;
 	}
@@ -742,6 +742,9 @@ int snd_hdmi_get_eld_ati(struct hda_codec *codec, hda_nid_t nid,
 		snd_hda_codec_write(codec, nid, 0, ATI_VERB_SET_AUDIO_DESCRIPTOR, i << 3);
 		ati_sad = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_AUDIO_DESCRIPTOR, 0);
 
+		if (ati_sad <= 0)
+			continue;
+
 		if (ati_sad & ATI_AUDIODESC_RATES) {
 			/* format is supported, copy SAD as-is */
 			buf[pos++] = (ati_sad & 0x0000ff) >> 0;
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 8aa104cba241..08407bed093e 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -1247,6 +1247,9 @@ static int hdmi_pin_hbr_setup(struct hda_codec *codec, hda_nid_t pin_nid,
 		pinctl = snd_hda_codec_read(codec, pin_nid, 0,
 					    AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
 
+		if (pinctl < 0)
+			return hbr ? -EINVAL : 0;
+
 		new_pinctl = pinctl & ~AC_PINCTL_EPT;
 		if (hbr)
 			new_pinctl |= AC_PINCTL_EPT_HBR;
@@ -3091,7 +3094,7 @@ static int atihdmi_pin_hbr_setup(struct hda_codec *codec, hda_nid_t pin_nid,
 	int hbr_ctl, hbr_ctl_new;
 
 	hbr_ctl = snd_hda_codec_read(codec, pin_nid, 0, ATI_VERB_GET_HBR_CONTROL, 0);
-	if (hbr_ctl & ATI_HBR_CAPABLE) {
+	if (hbr_ctl >= 0 && (hbr_ctl & ATI_HBR_CAPABLE)) {
 		if (hbr)
 			hbr_ctl_new = hbr_ctl | ATI_HBR_ENABLE;
 		else
-- 
cgit 


From a5666824ce79f4e63e017c25f6e1d9b6e6f267b2 Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@iki.fi>
Date: Sun, 10 Nov 2013 20:56:11 +0200
Subject: ALSA: hda - hdmi: Skip out-of-range latency values in AMD ELD
 generator

The ATI/AMD video/audio latencies are specified in apparent HDMI VSDB
format. In this format values above 251 are not valid (or stream
component is not supported - 255), but no checking is performed since
this was not mentioned in the AMD HDA verbs specification.

Check that the latencies are valid before using them, and add a comment
describing the formats.

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_eld.c | 23 +++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c
index e8c55f5a34ff..9b697a28cf53 100644
--- a/sound/pci/hda/hda_eld.c
+++ b/sound/pci/hda/hda_eld.c
@@ -768,13 +768,28 @@ int snd_hdmi_get_eld_ati(struct hda_codec *codec, hda_nid_t nid,
 		return -EINVAL;
 	}
 
+	/*
+	 * HDMI VSDB latency format:
+	 * separately for both audio and video:
+	 *  0          field not valid or unknown latency
+	 *  [1..251]   msecs = (x-1)*2  (max 500ms with x = 251 = 0xfb)
+	 *  255        audio/video not supported
+	 *
+	 * HDA latency format:
+	 * single value indicating video latency relative to audio:
+	 *  0          unknown or 0ms
+	 *  [1..250]   msecs = x*2  (max 500ms with x = 250 = 0xfa)
+	 *  [251..255] reserved
+	 */
 	aud_synch = snd_hda_codec_read(codec, nid, 0, ATI_VERB_GET_AUDIO_VIDEO_DELAY, 0);
 	if ((aud_synch & ATI_DELAY_VIDEO_LATENCY) && (aud_synch & ATI_DELAY_AUDIO_LATENCY)) {
-		int video_latency = (aud_synch & ATI_DELAY_VIDEO_LATENCY) - 1;
-		int audio_latency = ((aud_synch & ATI_DELAY_AUDIO_LATENCY) >> 8) - 1;
+		int video_latency_hdmi = (aud_synch & ATI_DELAY_VIDEO_LATENCY);
+		int audio_latency_hdmi = (aud_synch & ATI_DELAY_AUDIO_LATENCY) >> 8;
 
-		if (video_latency > audio_latency)
-			buf[6] = min(video_latency - audio_latency, 0xfa);
+		if (video_latency_hdmi <= 0xfb && audio_latency_hdmi <= 0xfb &&
+		    video_latency_hdmi > audio_latency_hdmi)
+			buf[6] = video_latency_hdmi - audio_latency_hdmi;
+		/* else unknown/invalid or 0ms or video ahead of audio, so use zero */
 	}
 
 	/* Baseline length */
-- 
cgit 


From 679605c768e86ceba7b87b8390e1446be3753bfb Mon Sep 17 00:00:00 2001
From: Anssi Hannula <anssi.hannula@iki.fi>
Date: Sun, 10 Nov 2013 22:57:42 +0200
Subject: ALSA: hda - hdmi: Fix wrong baseline length in ATI/AMD generated ELD

According to the HDA specification the baseline ELD length is counted in
DW of 4 bytes instead of in bytes.

Fix the code accordingly.

Baseline length is not used by the kernel so only the ELD exported to
userspace was affected. No issues have been reported.

v2: Fixed so that eld_size is adjusted upwards accordingly as well.

Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_eld.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/sound/pci/hda/hda_eld.c b/sound/pci/hda/hda_eld.c
index 9b697a28cf53..79ca80f6c77a 100644
--- a/sound/pci/hda/hda_eld.c
+++ b/sound/pci/hda/hda_eld.c
@@ -792,12 +792,15 @@ int snd_hdmi_get_eld_ati(struct hda_codec *codec, hda_nid_t nid,
 		/* else unknown/invalid or 0ms or video ahead of audio, so use zero */
 	}
 
-	/* Baseline length */
-	buf[2] = pos - 4;
-
 	/* SAD count */
 	buf[5] |= ((pos - ELD_FIXED_BYTES - sink_desc_len) / 3) << 4;
 
+	/* Baseline ELD block length is 4-byte aligned */
+	pos = round_up(pos, 4);
+
+	/* Baseline ELD length (4-byte header is not counted in) */
+	buf[2] = (pos - 4) / 4;
+
 	*eld_size = pos;
 
 	return 0;
-- 
cgit 


From a4f61dec55c1bdebb84ba77212ebf98f7247736c Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Mon, 11 Nov 2013 08:15:40 -0800
Subject: x86, trace: Change user|kernel_page_fault to page_fault_user|kernel

Tracepoints are named hierachially, and it makes more sense to keep a
general flow of information level from general to specific from left
to right, i.e.

	x86_exceptions.page_fault_user|kernel

rather than

	x86_exceptions.user|kernel_page_fault

Suggested-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Seiji Aguchi <seiji.aguchi@hds.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Link: http://lkml.kernel.org/r/20131111082955.GB12405@gmail.com
---
 arch/x86/include/asm/trace/exceptions.h | 4 ++--
 arch/x86/mm/fault.c                     | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/include/asm/trace/exceptions.h b/arch/x86/include/asm/trace/exceptions.h
index 86540c094ecc..2fbc66c7885b 100644
--- a/arch/x86/include/asm/trace/exceptions.h
+++ b/arch/x86/include/asm/trace/exceptions.h
@@ -40,8 +40,8 @@ DEFINE_EVENT_FN(x86_exceptions, name,				\
 	trace_irq_vector_regfunc,				\
 	trace_irq_vector_unregfunc);
 
-DEFINE_PAGE_FAULT_EVENT(user_page_fault);
-DEFINE_PAGE_FAULT_EVENT(kernel_page_fault);
+DEFINE_PAGE_FAULT_EVENT(page_fault_user);
+DEFINE_PAGE_FAULT_EVENT(page_fault_kernel);
 
 #undef TRACE_INCLUDE_PATH
 #define TRACE_INCLUDE_PATH .
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index f2730cbce0b5..e532230685d7 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -1239,9 +1239,9 @@ static void trace_page_fault_entries(struct pt_regs *regs,
 				     unsigned long error_code)
 {
 	if (user_mode(regs))
-		trace_user_page_fault(read_cr2(), regs, error_code);
+		trace_page_fault_user(read_cr2(), regs, error_code);
 	else
-		trace_kernel_page_fault(read_cr2(), regs, error_code);
+		trace_page_fault_kernel(read_cr2(), regs, error_code);
 }
 
 dotraplinkage void __kprobes
-- 
cgit 


From c6f58d9b362b45c52afebe4342c9137d0dabe47f Mon Sep 17 00:00:00 2001
From: Christoph Lameter <cl@linux.com>
Date: Thu, 7 Nov 2013 16:29:15 +0000
Subject: slub: Handle NULL parameter in kmem_cache_flags

Andreas Herrmann writes:

  When I've used slub_debug kernel option (e.g.
  "slub_debug=,skbuff_fclone_cache" or similar) on a debug session I've
  seen a panic like:

    Highbank #setenv bootargs console=ttyAMA0 root=/dev/sda2 kgdboc.kgdboc=ttyAMA0,115200 slub_debug=,kmalloc-4096 earlyprintk=ttyAMA0
    ...
    Unable to handle kernel NULL pointer dereference at virtual address 00000000
    pgd = c0004000
    [00000000] *pgd=00000000
    Internal error: Oops: 5 [#1] SMP ARM
    Modules linked in:
    CPU: 0 PID: 0 Comm: swapper Tainted: G        W    3.12.0-00048-gbe408cd #314
    task: c0898360 ti: c088a000 task.ti: c088a000
    PC is at strncmp+0x1c/0x84
    LR is at kmem_cache_flags.isra.46.part.47+0x44/0x60
    pc : [<c02c6da0>]    lr : [<c0110a3c>]    psr: 200001d3
    sp : c088bea8  ip : c088beb8  fp : c088beb4
    r10: 00000000  r9 : 413fc090  r8 : 00000001
    r7 : 00000000  r6 : c2984a08  r5 : c0966e78  r4 : 00000000
    r3 : 0000006b  r2 : 0000000c  r1 : 00000000  r0 : c2984a08
    Flags: nzCv  IRQs off  FIQs off  Mode SVC_32  ISA ARM  Segment kernel
    Control: 10c5387d  Table: 0000404a  DAC: 00000015
    Process swapper (pid: 0, stack limit = 0xc088a248)
    Stack: (0xc088bea8 to 0xc088c000)
    bea0:                   c088bed4 c088beb8 c0110a3c c02c6d90 c0966e78 00000040
    bec0: ef001f00 00000040 c088bf14 c088bed8 c0112070 c0110a04 00000005 c010fac8
    bee0: c088bf5c c088bef0 c010fac8 ef001f00 00000040 00000000 00000040 00000001
    bf00: 413fc090 00000000 c088bf34 c088bf18 c0839190 c0112040 00000000 ef001f00
    bf20: 00000000 00000000 c088bf54 c088bf38 c0839200 c083914c 00000006 c0961c4c
    bf40: c0961c28 00000000 c088bf7c c088bf58 c08392ac c08391c0 c08a2ed8 c0966e78
    bf60: c086b874 c08a3f50 c0961c28 00000001 c088bfb4 c088bf80 c083b258 c0839248
    bf80: 2f800000 0f000000 c08935b4 ffffffff c08cd400 ffffffff c08cd400 c0868408
    bfa0: c29849c0 00000000 c088bff4 c088bfb8 c0824974 c083b1e4 ffffffff ffffffff
    bfc0: c08245c0 00000000 00000000 c0868408 00000000 10c5387d c0892bcc c0868404
    bfe0: c0899440 0000406a 00000000 c088bff8 00008074 c0824824 00000000 00000000
    [<c02c6da0>] (strncmp+0x1c/0x84) from [<c0110a3c>] (kmem_cache_flags.isra.46.part.47+0x44/0x60)
    [<c0110a3c>] (kmem_cache_flags.isra.46.part.47+0x44/0x60) from [<c0112070>] (__kmem_cache_create+0x3c/0x410)
    [<c0112070>] (__kmem_cache_create+0x3c/0x410) from [<c0839190>] (create_boot_cache+0x50/0x74)
    [<c0839190>] (create_boot_cache+0x50/0x74) from [<c0839200>] (create_kmalloc_cache+0x4c/0x88)
    [<c0839200>] (create_kmalloc_cache+0x4c/0x88) from [<c08392ac>] (create_kmalloc_caches+0x70/0x114)
    [<c08392ac>] (create_kmalloc_caches+0x70/0x114) from [<c083b258>] (kmem_cache_init+0x80/0xe0)
    [<c083b258>] (kmem_cache_init+0x80/0xe0) from [<c0824974>] (start_kernel+0x15c/0x318)
    [<c0824974>] (start_kernel+0x15c/0x318) from [<00008074>] (0x8074)
    Code: e3520000 01a00002 089da800 e5d03000 (e5d1c000)
    ---[ end trace 1b75b31a2719ed1d ]---
    Kernel panic - not syncing: Fatal exception

  Problem is that slub_debug option is not parsed before
  create_boot_cache is called. Solve this by changing slub_debug to
  early_param.

  Kernels 3.11, 3.10 are also affected.  I am not sure about older
  kernels.

Christoph Lameter explains:

  kmem_cache_flags may be called with NULL parameter during early boot.
  Skip the test in that case.

Cc: stable@vger.kernel.org # 3.10 and 3.11
Reported-by: Andreas Herrmann <andreas.herrmann@calxeda.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
---
 mm/slub.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/slub.c b/mm/slub.c
index 250062c66ec5..2cf39826d4f0 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1220,8 +1220,8 @@ static unsigned long kmem_cache_flags(unsigned long object_size,
 	/*
 	 * Enable debugging if selected on the kernel commandline.
 	 */
-	if (slub_debug && (!slub_debug_slabs ||
-		!strncmp(slub_debug_slabs, name, strlen(slub_debug_slabs))))
+	if (slub_debug && (!slub_debug_slabs || (name &&
+		!strncmp(slub_debug_slabs, name, strlen(slub_debug_slabs)))))
 		flags |= slub_debug;
 
 	return flags;
-- 
cgit 


From a941f8360f200d6849b292f9dc50250bca531c0e Mon Sep 17 00:00:00 2001
From: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Date: Fri, 8 Nov 2013 20:47:36 +0800
Subject: mm, slub: fix the typo in include/linux/slub_def.h

Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
---
 include/linux/slub_def.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 027276fa8713..2dc4e78fc234 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -17,7 +17,7 @@
 enum stat_item {
 	ALLOC_FASTPATH,		/* Allocation from cpu slab */
 	ALLOC_SLOWPATH,		/* Allocation by getting a new cpu slab */
-	FREE_FASTPATH,		/* Free to cpu slub */
+	FREE_FASTPATH,		/* Free to cpu slab */
 	FREE_SLOWPATH,		/* Freeing not to cpu slab */
 	FREE_FROZEN,		/* Freeing to frozen slab */
 	FREE_ADD_PARTIAL,	/* Freeing moves slab to partial list */
-- 
cgit 


From 721ae22ae1a51c25871b7a0b543877aa94ff2a20 Mon Sep 17 00:00:00 2001
From: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Date: Fri, 8 Nov 2013 20:47:37 +0800
Subject: mm, slub: fix the typo in mm/slub.c

Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
---
 mm/slub.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mm/slub.c b/mm/slub.c
index 2cf39826d4f0..1ee14acb3bda 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -155,7 +155,7 @@ static inline bool kmem_cache_has_cpu_partial(struct kmem_cache *s)
 /*
  * Maximum number of desirable partial slabs.
  * The existence of more partial slabs makes kmem_cache_shrink
- * sort the partial list by the number of objects in the.
+ * sort the partial list by the number of objects in use.
  */
 #define MAX_PARTIAL 10
 
@@ -2849,8 +2849,8 @@ static struct kmem_cache *kmem_cache_node;
  * slab on the node for this slabcache. There are no concurrent accesses
  * possible.
  *
- * Note that this function only works on the kmalloc_node_cache
- * when allocating for the kmalloc_node_cache. This is used for bootstrapping
+ * Note that this function only works on the kmem_cache_node
+ * when allocating for the kmem_cache_node. This is used for bootstrapping
  * memory on a fresh node that has no slab structures yet.
  */
 static void early_kmem_cache_node_alloc(int node)
-- 
cgit 


From f494a9c6b1b6dd9a9f21bbb75d9210d478eeb498 Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Thu, 31 Oct 2013 13:55:49 -0400
Subject: dm cache: cache shrinking support

Allow a cache to shrink if the blocks being removed from the cache are
not dirty.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-cache-metadata.c | 66 ++++++++++++++++++++++++++++++++++++++++++
 drivers/md/dm-cache-target.c   | 63 ++++++++++++++++++++++++++++++++++------
 2 files changed, 120 insertions(+), 9 deletions(-)

diff --git a/drivers/md/dm-cache-metadata.c b/drivers/md/dm-cache-metadata.c
index 2262b4e57a28..062b83ed3e84 100644
--- a/drivers/md/dm-cache-metadata.c
+++ b/drivers/md/dm-cache-metadata.c
@@ -667,19 +667,85 @@ void dm_cache_metadata_close(struct dm_cache_metadata *cmd)
 	kfree(cmd);
 }
 
+/*
+ * Checks that the given cache block is either unmapped or clean.
+ */
+static int block_unmapped_or_clean(struct dm_cache_metadata *cmd, dm_cblock_t b,
+				   bool *result)
+{
+	int r;
+	__le64 value;
+	dm_oblock_t ob;
+	unsigned flags;
+
+	r = dm_array_get_value(&cmd->info, cmd->root, from_cblock(b), &value);
+	if (r) {
+		DMERR("block_unmapped_or_clean failed");
+		return r;
+	}
+
+	unpack_value(value, &ob, &flags);
+	*result = !((flags & M_VALID) && (flags & M_DIRTY));
+
+	return 0;
+}
+
+static int blocks_are_unmapped_or_clean(struct dm_cache_metadata *cmd,
+					dm_cblock_t begin, dm_cblock_t end,
+					bool *result)
+{
+	int r;
+	*result = true;
+
+	while (begin != end) {
+		r = block_unmapped_or_clean(cmd, begin, result);
+		if (r)
+			return r;
+
+		if (!*result) {
+			DMERR("cache block %llu is dirty",
+			      (unsigned long long) from_cblock(begin));
+			return 0;
+		}
+
+		begin = to_cblock(from_cblock(begin) + 1);
+	}
+
+	return 0;
+}
+
 int dm_cache_resize(struct dm_cache_metadata *cmd, dm_cblock_t new_cache_size)
 {
 	int r;
+	bool clean;
 	__le64 null_mapping = pack_value(0, 0);
 
 	down_write(&cmd->root_lock);
 	__dm_bless_for_disk(&null_mapping);
+
+	if (from_cblock(new_cache_size) < from_cblock(cmd->cache_blocks)) {
+		r = blocks_are_unmapped_or_clean(cmd, new_cache_size, cmd->cache_blocks, &clean);
+		if (r) {
+			__dm_unbless_for_disk(&null_mapping);
+			goto out;
+		}
+
+		if (!clean) {
+			DMERR("unable to shrink cache due to dirty blocks");
+			r = -EINVAL;
+			__dm_unbless_for_disk(&null_mapping);
+			goto out;
+		}
+	}
+
 	r = dm_array_resize(&cmd->info, cmd->root, from_cblock(cmd->cache_blocks),
 			    from_cblock(new_cache_size),
 			    &null_mapping, &cmd->root);
 	if (!r)
 		cmd->cache_blocks = new_cache_size;
 	cmd->changed = true;
+
+out:
 	up_write(&cmd->root_lock);
 
 	return r;
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 655994fdf308..183dfc9db297 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -2502,26 +2502,71 @@ static int load_discard(void *context, sector_t discard_block_size,
 	return 0;
 }
 
+static dm_cblock_t get_cache_dev_size(struct cache *cache)
+{
+	sector_t size = get_dev_size(cache->cache_dev);
+	(void) sector_div(size, cache->sectors_per_block);
+	return to_cblock(size);
+}
+
+static bool can_resize(struct cache *cache, dm_cblock_t new_size)
+{
+	if (from_cblock(new_size) > from_cblock(cache->cache_size))
+		return true;
+
+	/*
+	 * We can't drop a dirty block when shrinking the cache.
+	 */
+	while (from_cblock(new_size) < from_cblock(cache->cache_size)) {
+		new_size = to_cblock(from_cblock(new_size) + 1);
+		if (is_dirty(cache, new_size)) {
+			DMERR("unable to shrink cache; cache block %llu is dirty",
+			      (unsigned long long) from_cblock(new_size));
+			return false;
+		}
+	}
+
+	return true;
+}
+
+static int resize_cache_dev(struct cache *cache, dm_cblock_t new_size)
+{
+	int r;
+
+	r = dm_cache_resize(cache->cmd, cache->cache_size);
+	if (r) {
+		DMERR("could not resize cache metadata");
+		return r;
+	}
+
+	cache->cache_size = new_size;
+
+	return 0;
+}
+
 static int cache_preresume(struct dm_target *ti)
 {
 	int r = 0;
 	struct cache *cache = ti->private;
-	sector_t actual_cache_size = get_dev_size(cache->cache_dev);
-	(void) sector_div(actual_cache_size, cache->sectors_per_block);
+	dm_cblock_t csize = get_cache_dev_size(cache);
 
 	/*
 	 * Check to see if the cache has resized.
 	 */
-	if (from_cblock(cache->cache_size) != actual_cache_size || !cache->sized) {
-		cache->cache_size = to_cblock(actual_cache_size);
-
-		r = dm_cache_resize(cache->cmd, cache->cache_size);
-		if (r) {
-			DMERR("could not resize cache metadata");
+	if (!cache->sized) {
+		r = resize_cache_dev(cache, csize);
+		if (r)
 			return r;
-		}
 
 		cache->sized = true;
+
+	} else if (csize != cache->cache_size) {
+		if (!can_resize(cache, csize))
+			return -EINVAL;
+
+		r = resize_cache_dev(cache, csize);
+		if (r)
+			return r;
 	}
 
 	if (!cache->loaded_mappings) {
-- 
cgit 


From 2ee57d587357f0d752af6c2e3e46434a74b1bee3 Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Thu, 24 Oct 2013 14:10:29 -0400
Subject: dm cache: add passthrough mode

"Passthrough" is a dm-cache operating mode (like writethrough or
writeback) which is intended to be used when the cache contents are not
known to be coherent with the origin device.  It behaves as follows:

* All reads are served from the origin device (all reads miss the cache)
* All writes are forwarded to the origin device; additionally, write
  hits cause cache block invalidates

This mode decouples cache coherency checks from cache device creation,
largely to avoid having to perform coherency checks while booting.  Boot
scripts can create cache devices in passthrough mode and put them into
service (mount cached filesystems, for example) without having to worry
about coherency.  Coherency that exists is maintained, although the
cache will gradually cool as writes take place.

Later, applications can perform coherency checks, the nature of which
will depend on the type of the underlying storage.  If coherency can be
verified, the cache device can be transitioned to writethrough or
writeback mode while still warm; otherwise, the cache contents can be
discarded prior to transitioning to the desired operating mode.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Heinz Mauelshagen <heinzm@redhat.com>
Signed-off-by: Morgan Mears <Morgan.Mears@netapp.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 Documentation/device-mapper/cache.txt |  19 +++-
 drivers/md/dm-cache-metadata.c        |   5 +
 drivers/md/dm-cache-metadata.h        |   5 +
 drivers/md/dm-cache-target.c          | 209 ++++++++++++++++++++++++++++------
 4 files changed, 200 insertions(+), 38 deletions(-)

diff --git a/Documentation/device-mapper/cache.txt b/Documentation/device-mapper/cache.txt
index 33d45ee0b737..ff6639f72536 100644
--- a/Documentation/device-mapper/cache.txt
+++ b/Documentation/device-mapper/cache.txt
@@ -68,10 +68,11 @@ So large block sizes are bad because they waste cache space.  And small
 block sizes are bad because they increase the amount of metadata (both
 in core and on disk).
 
-Writeback/writethrough
-----------------------
+Cache operating modes
+---------------------
 
-The cache has two modes, writeback and writethrough.
+The cache has three operating modes: writeback, writethrough and
+passthrough.
 
 If writeback, the default, is selected then a write to a block that is
 cached will go only to the cache and the block will be marked dirty in
@@ -81,6 +82,18 @@ If writethrough is selected then a write to a cached block will not
 complete until it has hit both the origin and cache devices.  Clean
 blocks should remain clean.
 
+If passthrough is selected, useful when the cache contents are not known
+to be coherent with the origin device, then all reads are served from
+the origin device (all reads miss the cache) and all writes are
+forwarded to the origin device; additionally, write hits cause cache
+block invalidates.  Passthrough mode allows a cache device to be
+activated without having to worry about coherency.  Coherency that
+exists is maintained, although the cache will gradually cool as writes
+take place.  If the coherency of the cache can later be verified, or
+established, the cache device can can be transitioned to writethrough or
+writeback mode while still warm.  Otherwise, the cache contents can be
+discarded prior to transitioning to the desired operating mode.
+
 A simple cleaner policy is provided, which will clean (write back) all
 dirty blocks in a cache.  Useful for decommissioning a cache.
 
diff --git a/drivers/md/dm-cache-metadata.c b/drivers/md/dm-cache-metadata.c
index 062b83ed3e84..8601425436cd 100644
--- a/drivers/md/dm-cache-metadata.c
+++ b/drivers/md/dm-cache-metadata.c
@@ -1249,3 +1249,8 @@ int dm_cache_save_hint(struct dm_cache_metadata *cmd, dm_cblock_t cblock,
 
 	return r;
 }
+
+int dm_cache_metadata_all_clean(struct dm_cache_metadata *cmd, bool *result)
+{
+	return blocks_are_unmapped_or_clean(cmd, 0, cmd->cache_blocks, result);
+}
diff --git a/drivers/md/dm-cache-metadata.h b/drivers/md/dm-cache-metadata.h
index f45cef21f3d0..cd906f14f98d 100644
--- a/drivers/md/dm-cache-metadata.h
+++ b/drivers/md/dm-cache-metadata.h
@@ -137,6 +137,11 @@ int dm_cache_begin_hints(struct dm_cache_metadata *cmd, struct dm_cache_policy *
 int dm_cache_save_hint(struct dm_cache_metadata *cmd,
 		       dm_cblock_t cblock, uint32_t hint);
 
+/*
+ * Query method.  Are all the blocks in the cache clean?
+ */
+int dm_cache_metadata_all_clean(struct dm_cache_metadata *cmd, bool *result);
+
 /*----------------------------------------------------------------*/
 
 #endif /* DM_CACHE_METADATA_H */
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 183dfc9db297..8c0217753cc5 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -104,14 +104,37 @@ static void dm_unhook_bio(struct dm_hook_info *h, struct bio *bio)
 /*
  * FIXME: the cache is read/write for the time being.
  */
-enum cache_mode {
+enum cache_metadata_mode {
 	CM_WRITE,		/* metadata may be changed */
 	CM_READ_ONLY,		/* metadata may not be changed */
 };
 
+enum cache_io_mode {
+	/*
+	 * Data is written to cached blocks only.  These blocks are marked
+	 * dirty.  If you lose the cache device you will lose data.
+	 * Potential performance increase for both reads and writes.
+	 */
+	CM_IO_WRITEBACK,
+
+	/*
+	 * Data is written to both cache and origin.  Blocks are never
+	 * dirty.  Potential performance benfit for reads only.
+	 */
+	CM_IO_WRITETHROUGH,
+
+	/*
+	 * A degraded mode useful for various cache coherency situations
+	 * (eg, rolling back snapshots).  Reads and writes always go to the
+	 * origin.  If a write goes to a cached oblock, then the cache
+	 * block is invalidated.
+	 */
+	CM_IO_PASSTHROUGH
+};
+
 struct cache_features {
-	enum cache_mode mode;
-	bool write_through:1;
+	enum cache_metadata_mode mode;
+	enum cache_io_mode io_mode;
 };
 
 struct cache_stats {
@@ -565,9 +588,24 @@ static void save_stats(struct cache *cache)
 #define PB_DATA_SIZE_WB (offsetof(struct per_bio_data, cache))
 #define PB_DATA_SIZE_WT (sizeof(struct per_bio_data))
 
+static bool writethrough_mode(struct cache_features *f)
+{
+	return f->io_mode == CM_IO_WRITETHROUGH;
+}
+
+static bool writeback_mode(struct cache_features *f)
+{
+	return f->io_mode == CM_IO_WRITEBACK;
+}
+
+static bool passthrough_mode(struct cache_features *f)
+{
+	return f->io_mode == CM_IO_PASSTHROUGH;
+}
+
 static size_t get_per_bio_data_size(struct cache *cache)
 {
-	return cache->features.write_through ? PB_DATA_SIZE_WT : PB_DATA_SIZE_WB;
+	return writethrough_mode(&cache->features) ? PB_DATA_SIZE_WT : PB_DATA_SIZE_WB;
 }
 
 static struct per_bio_data *get_per_bio_data(struct bio *bio, size_t data_size)
@@ -1135,6 +1173,32 @@ static void demote_then_promote(struct cache *cache, struct prealloc *structs,
 	quiesce_migration(mg);
 }
 
+/*
+ * Invalidate a cache entry.  No writeback occurs; any changes in the cache
+ * block are thrown away.
+ */
+static void invalidate(struct cache *cache, struct prealloc *structs,
+		       dm_oblock_t oblock, dm_cblock_t cblock,
+		       struct dm_bio_prison_cell *cell)
+{
+	struct dm_cache_migration *mg = prealloc_get_migration(structs);
+
+	mg->err = false;
+	mg->writeback = false;
+	mg->demote = true;
+	mg->promote = false;
+	mg->requeue_holder = true;
+	mg->cache = cache;
+	mg->old_oblock = oblock;
+	mg->cblock = cblock;
+	mg->old_ocell = cell;
+	mg->new_ocell = NULL;
+	mg->start_jiffies = jiffies;
+
+	inc_nr_migrations(cache);
+	quiesce_migration(mg);
+}
+
 /*----------------------------------------------------------------
  * bio processing
  *--------------------------------------------------------------*/
@@ -1197,13 +1261,6 @@ static bool spare_migration_bandwidth(struct cache *cache)
 	return current_volume < cache->migration_threshold;
 }
 
-static bool is_writethrough_io(struct cache *cache, struct bio *bio,
-			       dm_cblock_t cblock)
-{
-	return bio_data_dir(bio) == WRITE &&
-		cache->features.write_through && !is_dirty(cache, cblock);
-}
-
 static void inc_hit_counter(struct cache *cache, struct bio *bio)
 {
 	atomic_inc(bio_data_dir(bio) == READ ?
@@ -1216,6 +1273,15 @@ static void inc_miss_counter(struct cache *cache, struct bio *bio)
 		   &cache->stats.read_miss : &cache->stats.write_miss);
 }
 
+static void issue_cache_bio(struct cache *cache, struct bio *bio,
+			    struct per_bio_data *pb,
+			    dm_oblock_t oblock, dm_cblock_t cblock)
+{
+	pb->all_io_entry = dm_deferred_entry_inc(cache->all_io_ds);
+	remap_to_cache_dirty(cache, bio, oblock, cblock);
+	issue(cache, bio);
+}
+
 static void process_bio(struct cache *cache, struct prealloc *structs,
 			struct bio *bio)
 {
@@ -1227,7 +1293,8 @@ static void process_bio(struct cache *cache, struct prealloc *structs,
 	size_t pb_data_size = get_per_bio_data_size(cache);
 	struct per_bio_data *pb = get_per_bio_data(bio, pb_data_size);
 	bool discarded_block = is_discarded_oblock(cache, block);
-	bool can_migrate = discarded_block || spare_migration_bandwidth(cache);
+	bool passthrough = passthrough_mode(&cache->features);
+	bool can_migrate = !passthrough && (discarded_block || spare_migration_bandwidth(cache));
 
 	/*
 	 * Check to see if that block is currently migrating.
@@ -1248,15 +1315,39 @@ static void process_bio(struct cache *cache, struct prealloc *structs,
 
 	switch (lookup_result.op) {
 	case POLICY_HIT:
-		inc_hit_counter(cache, bio);
-		pb->all_io_entry = dm_deferred_entry_inc(cache->all_io_ds);
+		if (passthrough) {
+			inc_miss_counter(cache, bio);
 
-		if (is_writethrough_io(cache, bio, lookup_result.cblock))
-			remap_to_origin_then_cache(cache, bio, block, lookup_result.cblock);
-		else
-			remap_to_cache_dirty(cache, bio, block, lookup_result.cblock);
+			/*
+			 * Passthrough always maps to the origin,
+			 * invalidating any cache blocks that are written
+			 * to.
+			 */
+
+			if (bio_data_dir(bio) == WRITE) {
+				atomic_inc(&cache->stats.demotion);
+				invalidate(cache, structs, block, lookup_result.cblock, new_ocell);
+				release_cell = false;
+
+			} else {
+				/* FIXME: factor out issue_origin() */
+				pb->all_io_entry = dm_deferred_entry_inc(cache->all_io_ds);
+				remap_to_origin_clear_discard(cache, bio, block);
+				issue(cache, bio);
+			}
+		} else {
+			inc_hit_counter(cache, bio);
+
+			if (bio_data_dir(bio) == WRITE &&
+			    writethrough_mode(&cache->features) &&
+			    !is_dirty(cache, lookup_result.cblock)) {
+				pb->all_io_entry = dm_deferred_entry_inc(cache->all_io_ds);
+				remap_to_origin_then_cache(cache, bio, block, lookup_result.cblock);
+				issue(cache, bio);
+			} else
+				issue_cache_bio(cache, bio, pb, block, lookup_result.cblock);
+		}
 
-		issue(cache, bio);
 		break;
 
 	case POLICY_MISS:
@@ -1807,7 +1898,7 @@ static int parse_block_size(struct cache_args *ca, struct dm_arg_set *as,
 static void init_features(struct cache_features *cf)
 {
 	cf->mode = CM_WRITE;
-	cf->write_through = false;
+	cf->io_mode = CM_IO_WRITEBACK;
 }
 
 static int parse_features(struct cache_args *ca, struct dm_arg_set *as,
@@ -1832,10 +1923,13 @@ static int parse_features(struct cache_args *ca, struct dm_arg_set *as,
 		arg = dm_shift_arg(as);
 
 		if (!strcasecmp(arg, "writeback"))
-			cf->write_through = false;
+			cf->io_mode = CM_IO_WRITEBACK;
 
 		else if (!strcasecmp(arg, "writethrough"))
-			cf->write_through = true;
+			cf->io_mode = CM_IO_WRITETHROUGH;
+
+		else if (!strcasecmp(arg, "passthrough"))
+			cf->io_mode = CM_IO_PASSTHROUGH;
 
 		else {
 			*error = "Unrecognised cache feature requested";
@@ -2088,6 +2182,22 @@ static int cache_create(struct cache_args *ca, struct cache **result)
 	}
 	cache->cmd = cmd;
 
+	if (passthrough_mode(&cache->features)) {
+		bool all_clean;
+
+		r = dm_cache_metadata_all_clean(cache->cmd, &all_clean);
+		if (r) {
+			*error = "dm_cache_metadata_all_clean() failed";
+			goto bad;
+		}
+
+		if (!all_clean) {
+			*error = "Cannot enter passthrough mode unless all blocks are clean";
+			r = -EINVAL;
+			goto bad;
+		}
+	}
+
 	spin_lock_init(&cache->lock);
 	bio_list_init(&cache->deferred_bios);
 	bio_list_init(&cache->deferred_flush_bios);
@@ -2303,17 +2413,37 @@ static int cache_map(struct dm_target *ti, struct bio *bio)
 		return DM_MAPIO_SUBMITTED;
 	}
 
+	r = DM_MAPIO_REMAPPED;
 	switch (lookup_result.op) {
 	case POLICY_HIT:
-		inc_hit_counter(cache, bio);
-		pb->all_io_entry = dm_deferred_entry_inc(cache->all_io_ds);
+		if (passthrough_mode(&cache->features)) {
+			if (bio_data_dir(bio) == WRITE) {
+				/*
+				 * We need to invalidate this block, so
+				 * defer for the worker thread.
+				 */
+				cell_defer(cache, cell, true);
+				r = DM_MAPIO_SUBMITTED;
+
+			} else {
+				pb->all_io_entry = dm_deferred_entry_inc(cache->all_io_ds);
+				inc_miss_counter(cache, bio);
+				remap_to_origin_clear_discard(cache, bio, block);
+
+				cell_defer(cache, cell, false);
+			}
 
-		if (is_writethrough_io(cache, bio, lookup_result.cblock))
-			remap_to_origin_then_cache(cache, bio, block, lookup_result.cblock);
-		else
-			remap_to_cache_dirty(cache, bio, block, lookup_result.cblock);
+		} else {
+			inc_hit_counter(cache, bio);
+
+			if (bio_data_dir(bio) == WRITE && writethrough_mode(&cache->features) &&
+			    !is_dirty(cache, lookup_result.cblock))
+				remap_to_origin_then_cache(cache, bio, block, lookup_result.cblock);
+			else
+				remap_to_cache_dirty(cache, bio, block, lookup_result.cblock);
 
-		cell_defer(cache, cell, false);
+			cell_defer(cache, cell, false);
+		}
 		break;
 
 	case POLICY_MISS:
@@ -2338,10 +2468,10 @@ static int cache_map(struct dm_target *ti, struct bio *bio)
 		DMERR_LIMIT("%s: erroring bio: unknown policy op: %u", __func__,
 			    (unsigned) lookup_result.op);
 		bio_io_error(bio);
-		return DM_MAPIO_SUBMITTED;
+		r = DM_MAPIO_SUBMITTED;
 	}
 
-	return DM_MAPIO_REMAPPED;
+	return r;
 }
 
 static int cache_end_io(struct dm_target *ti, struct bio *bio, int error)
@@ -2659,10 +2789,19 @@ static void cache_status(struct dm_target *ti, status_type_t type,
 		       (unsigned long long) from_cblock(residency),
 		       cache->nr_dirty);
 
-		if (cache->features.write_through)
+		if (writethrough_mode(&cache->features))
 			DMEMIT("1 writethrough ");
-		else
-			DMEMIT("0 ");
+
+		else if (passthrough_mode(&cache->features))
+			DMEMIT("1 passthrough ");
+
+		else if (writeback_mode(&cache->features))
+			DMEMIT("1 writeback ");
+
+		else {
+			DMERR("internal error: unknown io mode: %d", (int) cache->features.io_mode);
+			goto err;
+		}
 
 		DMEMIT("2 migration_threshold %llu ", (unsigned long long) cache->migration_threshold);
 		if (sz < maxlen) {
@@ -2771,7 +2910,7 @@ static void cache_io_hints(struct dm_target *ti, struct queue_limits *limits)
 
 static struct target_type cache_target = {
 	.name = "cache",
-	.version = {1, 1, 1},
+	.version = {1, 2, 0},
 	.module = THIS_MODULE,
 	.ctr = cache_ctr,
 	.dtr = cache_dtr,
-- 
cgit 


From 53d498198d3e8bce4287112beafc30befcba98cc Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Wed, 16 Oct 2013 10:59:26 +0100
Subject: dm cache metadata: check the metadata version when reading the
 superblock

Need to check the version to verify on-disk metadata is supported.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-cache-metadata.c | 24 +++++++++++++++++++++---
 1 file changed, 21 insertions(+), 3 deletions(-)

diff --git a/drivers/md/dm-cache-metadata.c b/drivers/md/dm-cache-metadata.c
index 8601425436cd..9ef0752e8a08 100644
--- a/drivers/md/dm-cache-metadata.c
+++ b/drivers/md/dm-cache-metadata.c
@@ -20,7 +20,13 @@
 
 #define CACHE_SUPERBLOCK_MAGIC 06142003
 #define CACHE_SUPERBLOCK_LOCATION 0
-#define CACHE_VERSION 1
+
+/*
+ * defines a range of metadata versions that this module can handle.
+ */
+#define MIN_CACHE_VERSION 1
+#define MAX_CACHE_VERSION 1
+
 #define CACHE_METADATA_CACHE_SIZE 64
 
 /*
@@ -134,6 +140,18 @@ static void sb_prepare_for_write(struct dm_block_validator *v,
 						      SUPERBLOCK_CSUM_XOR));
 }
 
+static int check_metadata_version(struct cache_disk_superblock *disk_super)
+{
+	uint32_t metadata_version = le32_to_cpu(disk_super->version);
+	if (metadata_version < MIN_CACHE_VERSION || metadata_version > MAX_CACHE_VERSION) {
+		DMERR("Cache metadata version %u found, but only versions between %u and %u supported.",
+		      metadata_version, MIN_CACHE_VERSION, MAX_CACHE_VERSION);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
 static int sb_check(struct dm_block_validator *v,
 		    struct dm_block *b,
 		    size_t sb_block_size)
@@ -164,7 +182,7 @@ static int sb_check(struct dm_block_validator *v,
 		return -EILSEQ;
 	}
 
-	return 0;
+	return check_metadata_version(disk_super);
 }
 
 static struct dm_block_validator sb_validator = {
@@ -270,7 +288,7 @@ static int __write_initial_superblock(struct dm_cache_metadata *cmd)
 	disk_super->flags = 0;
 	memset(disk_super->uuid, 0, sizeof(disk_super->uuid));
 	disk_super->magic = cpu_to_le64(CACHE_SUPERBLOCK_MAGIC);
-	disk_super->version = cpu_to_le32(CACHE_VERSION);
+	disk_super->version = cpu_to_le32(MAX_CACHE_VERSION);
 	memset(disk_super->policy_name, 0, sizeof(disk_super->policy_name));
 	memset(disk_super->policy_version, 0, sizeof(disk_super->policy_version));
 	disk_super->policy_hint_size = 0;
-- 
cgit 


From 633618e3353f8953e43d989d08302f5dcd51d8be Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Sat, 9 Nov 2013 11:12:51 +0000
Subject: dm cache policy mq: reduce memory requirements

Rather than storing the cblock in each cache entry, we allocate all
entries in an array and infer the cblock from the entry position.

Saves 4 bytes of memory per cache block.  In addition, this gives us an
easy way of looking up cache entries by cblock.

We no longer need to keep an explicit bitset to track which cblocks
have been allocated.  And no searching is needed to find free cblocks.

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-cache-policy-mq.c | 543 +++++++++++++++++-----------------------
 1 file changed, 231 insertions(+), 312 deletions(-)

diff --git a/drivers/md/dm-cache-policy-mq.c b/drivers/md/dm-cache-policy-mq.c
index 444f0bf10b21..782bf854666a 100644
--- a/drivers/md/dm-cache-policy-mq.c
+++ b/drivers/md/dm-cache-policy-mq.c
@@ -26,19 +26,6 @@ static unsigned next_power(unsigned n, unsigned min)
 
 /*----------------------------------------------------------------*/
 
-static unsigned long *alloc_bitset(unsigned nr_entries)
-{
-	size_t s = sizeof(unsigned long) * dm_div_up(nr_entries, BITS_PER_LONG);
-	return vzalloc(s);
-}
-
-static void free_bitset(unsigned long *bits)
-{
-	vfree(bits);
-}
-
-/*----------------------------------------------------------------*/
-
 /*
  * Large, sequential ios are probably better left on the origin device since
  * spindles tend to have good bandwidth.
@@ -233,18 +220,107 @@ struct entry {
 	struct hlist_node hlist;
 	struct list_head list;
 	dm_oblock_t oblock;
-	dm_cblock_t cblock;	/* valid iff in_cache */
 
 	/*
 	 * FIXME: pack these better
 	 */
-	bool in_cache:1;
 	bool dirty:1;
 	unsigned hit_count;
 	unsigned generation;
 	unsigned tick;
 };
 
+/*
+ * Rather than storing the cblock in an entry, we allocate all entries in
+ * an array, and infer the cblock from the entry position.
+ *
+ * Free entries are linked together into a list.
+ */
+struct entry_pool {
+	struct entry *entries, *entries_end;
+	struct list_head free;
+	unsigned nr_allocated;
+};
+
+static int epool_init(struct entry_pool *ep, unsigned nr_entries)
+{
+	unsigned i;
+
+	ep->entries = vzalloc(sizeof(struct entry) * nr_entries);
+	if (!ep->entries)
+		return -ENOMEM;
+
+	ep->entries_end = ep->entries + nr_entries;
+
+	INIT_LIST_HEAD(&ep->free);
+	for (i = 0; i < nr_entries; i++)
+		list_add(&ep->entries[i].list, &ep->free);
+
+	ep->nr_allocated = 0;
+
+	return 0;
+}
+
+static void epool_exit(struct entry_pool *ep)
+{
+	vfree(ep->entries);
+}
+
+static struct entry *alloc_entry(struct entry_pool *ep)
+{
+	struct entry *e;
+
+	if (list_empty(&ep->free))
+		return NULL;
+
+	e = list_entry(list_pop(&ep->free), struct entry, list);
+	INIT_LIST_HEAD(&e->list);
+	INIT_HLIST_NODE(&e->hlist);
+	ep->nr_allocated++;
+
+	return e;
+}
+
+/*
+ * This assumes the cblock hasn't already been allocated.
+ */
+static struct entry *alloc_particular_entry(struct entry_pool *ep, dm_cblock_t cblock)
+{
+	struct entry *e = ep->entries + from_cblock(cblock);
+	list_del(&e->list);
+
+	INIT_LIST_HEAD(&e->list);
+	INIT_HLIST_NODE(&e->hlist);
+	ep->nr_allocated++;
+
+	return e;
+}
+
+static void free_entry(struct entry_pool *ep, struct entry *e)
+{
+	BUG_ON(!ep->nr_allocated);
+	ep->nr_allocated--;
+	INIT_HLIST_NODE(&e->hlist);
+	list_add(&e->list, &ep->free);
+}
+
+static bool epool_empty(struct entry_pool *ep)
+{
+	return list_empty(&ep->free);
+}
+
+static bool in_pool(struct entry_pool *ep, struct entry *e)
+{
+	return e >= ep->entries && e < ep->entries_end;
+}
+
+static dm_cblock_t infer_cblock(struct entry_pool *ep, struct entry *e)
+{
+	return to_cblock(e - ep->entries);
+}
+
+/*----------------------------------------------------------------*/
+
 struct mq_policy {
 	struct dm_cache_policy policy;
 
@@ -253,6 +329,13 @@ struct mq_policy {
 	dm_cblock_t cache_size;
 	struct io_tracker tracker;
 
+	/*
+	 * Entries come from two pools, one of pre-cache entries, and one
+	 * for the cache proper.
+	 */
+	struct entry_pool pre_cache_pool;
+	struct entry_pool cache_pool;
+
 	/*
 	 * We maintain three queues of entries.  The cache proper,
 	 * consisting of a clean and dirty queue, contains the currently
@@ -299,25 +382,6 @@ struct mq_policy {
 	 */
 	unsigned promote_threshold;
 
-	/*
-	 * We need cache_size entries for the cache, and choose to have
-	 * cache_size entries for the pre_cache too.  One motivation for
-	 * using the same size is to make the hit counts directly
-	 * comparable between pre_cache and cache.
-	 */
-	unsigned nr_entries;
-	unsigned nr_entries_allocated;
-	struct list_head free;
-
-	/*
-	 * Cache blocks may be unallocated.  We store this info in a
-	 * bitset.
-	 */
-	unsigned long *allocation_bitset;
-	unsigned nr_cblocks_allocated;
-	unsigned find_free_nr_words;
-	unsigned find_free_last_word;
-
 	/*
 	 * The hash table allows us to quickly find an entry by origin
 	 * block.  Both pre_cache and cache entries are in here.
@@ -327,50 +391,6 @@ struct mq_policy {
 	struct hlist_head *table;
 };
 
-/*----------------------------------------------------------------*/
-/* Free/alloc mq cache entry structures. */
-static void concat_queue(struct list_head *lh, struct queue *q)
-{
-	unsigned level;
-
-	for (level = 0; level < NR_QUEUE_LEVELS; level++)
-		list_splice(q->qs + level, lh);
-}
-
-static void free_entries(struct mq_policy *mq)
-{
-	struct entry *e, *tmp;
-
-	concat_queue(&mq->free, &mq->pre_cache);
-	concat_queue(&mq->free, &mq->cache_clean);
-	concat_queue(&mq->free, &mq->cache_dirty);
-
-	list_for_each_entry_safe(e, tmp, &mq->free, list)
-		kmem_cache_free(mq_entry_cache, e);
-}
-
-static int alloc_entries(struct mq_policy *mq, unsigned elts)
-{
-	unsigned u = mq->nr_entries;
-
-	INIT_LIST_HEAD(&mq->free);
-	mq->nr_entries_allocated = 0;
-
-	while (u--) {
-		struct entry *e = kmem_cache_zalloc(mq_entry_cache, GFP_KERNEL);
-
-		if (!e) {
-			free_entries(mq);
-			return -ENOMEM;
-		}
-
-
-		list_add(&e->list, &mq->free);
-	}
-
-	return 0;
-}
-
 /*----------------------------------------------------------------*/
 
 /*
@@ -407,54 +427,9 @@ static void hash_remove(struct entry *e)
 
 /*----------------------------------------------------------------*/
 
-/*
- * Allocates a new entry structure.  The memory is allocated in one lump,
- * so we just handing it out here.  Returns NULL if all entries have
- * already been allocated.  Cannot fail otherwise.
- */
-static struct entry *alloc_entry(struct mq_policy *mq)
-{
-	struct entry *e;
-
-	if (mq->nr_entries_allocated >= mq->nr_entries) {
-		BUG_ON(!list_empty(&mq->free));
-		return NULL;
-	}
-
-	e = list_entry(list_pop(&mq->free), struct entry, list);
-	INIT_LIST_HEAD(&e->list);
-	INIT_HLIST_NODE(&e->hlist);
-
-	mq->nr_entries_allocated++;
-	return e;
-}
-
-/*----------------------------------------------------------------*/
-
-/*
- * Mark cache blocks allocated or not in the bitset.
- */
-static void alloc_cblock(struct mq_policy *mq, dm_cblock_t cblock)
-{
-	BUG_ON(from_cblock(cblock) > from_cblock(mq->cache_size));
-	BUG_ON(test_bit(from_cblock(cblock), mq->allocation_bitset));
-
-	set_bit(from_cblock(cblock), mq->allocation_bitset);
-	mq->nr_cblocks_allocated++;
-}
-
-static void free_cblock(struct mq_policy *mq, dm_cblock_t cblock)
-{
-	BUG_ON(from_cblock(cblock) > from_cblock(mq->cache_size));
-	BUG_ON(!test_bit(from_cblock(cblock), mq->allocation_bitset));
-
-	clear_bit(from_cblock(cblock), mq->allocation_bitset);
-	mq->nr_cblocks_allocated--;
-}
-
 static bool any_free_cblocks(struct mq_policy *mq)
 {
-	return mq->nr_cblocks_allocated < from_cblock(mq->cache_size);
+	return !epool_empty(&mq->cache_pool);
 }
 
 static bool any_clean_cblocks(struct mq_policy *mq)
@@ -462,48 +437,6 @@ static bool any_clean_cblocks(struct mq_policy *mq)
 	return !queue_empty(&mq->cache_clean);
 }
 
-/*
- * Fills result out with a cache block that isn't in use, or return
- * -ENOSPC.  This does _not_ mark the cblock as allocated, the caller is
- * reponsible for that.
- */
-static int __find_free_cblock(struct mq_policy *mq, unsigned begin, unsigned end,
-			      dm_cblock_t *result, unsigned *last_word)
-{
-	int r = -ENOSPC;
-	unsigned w;
-
-	for (w = begin; w < end; w++) {
-		/*
-		 * ffz is undefined if no zero exists
-		 */
-		if (mq->allocation_bitset[w] != ~0UL) {
-			*last_word = w;
-			*result = to_cblock((w * BITS_PER_LONG) + ffz(mq->allocation_bitset[w]));
-			if (from_cblock(*result) < from_cblock(mq->cache_size))
-				r = 0;
-
-			break;
-		}
-	}
-
-	return r;
-}
-
-static int find_free_cblock(struct mq_policy *mq, dm_cblock_t *result)
-{
-	int r;
-
-	if (!any_free_cblocks(mq))
-		return -ENOSPC;
-
-	r = __find_free_cblock(mq, mq->find_free_last_word, mq->find_free_nr_words, result, &mq->find_free_last_word);
-	if (r == -ENOSPC && mq->find_free_last_word)
-		r = __find_free_cblock(mq, 0, mq->find_free_last_word, result, &mq->find_free_last_word);
-
-	return r;
-}
-
 /*----------------------------------------------------------------*/
 
 /*
@@ -520,34 +453,35 @@ static unsigned queue_level(struct entry *e)
 	return min((unsigned) ilog2(e->hit_count), NR_QUEUE_LEVELS - 1u);
 }
 
+static bool in_cache(struct mq_policy *mq, struct entry *e)
+{
+	return in_pool(&mq->cache_pool, e);
+}
+
 /*
  * Inserts the entry into the pre_cache or the cache.  Ensures the cache
- * block is marked as allocated if necc.  Inserts into the hash table.  Sets the
- * tick which records when the entry was last moved about.
+ * block is marked as allocated if necc.  Inserts into the hash table.
+ * Sets the tick which records when the entry was last moved about.
  */
 static void push(struct mq_policy *mq, struct entry *e)
 {
 	e->tick = mq->tick;
 	hash_insert(mq, e);
 
-	if (e->in_cache) {
-		alloc_cblock(mq, e->cblock);
+	if (in_cache(mq, e))
 		queue_push(e->dirty ? &mq->cache_dirty : &mq->cache_clean,
 			   queue_level(e), &e->list);
-	} else
+	else
 		queue_push(&mq->pre_cache, queue_level(e), &e->list);
 }
 
 /*
  * Removes an entry from pre_cache or cache.  Removes from the hash table.
- * Frees off the cache block if necc.
  */
 static void del(struct mq_policy *mq, struct entry *e)
 {
 	queue_remove(&e->list);
 	hash_remove(e);
-	if (e->in_cache)
-		free_cblock(mq, e->cblock);
 }
 
 /*
@@ -564,8 +498,6 @@ static struct entry *pop(struct mq_policy *mq, struct queue *q)
 
 	e = container_of(h, struct entry, list);
 	hash_remove(e);
-	if (e->in_cache)
-		free_cblock(mq, e->cblock);
 
 	return e;
 }
@@ -599,9 +531,7 @@ static void check_generation(struct mq_policy *mq)
 	struct list_head *head;
 	struct entry *e;
 
-	if ((mq->hit_count >= mq->generation_period) &&
-	    (mq->nr_cblocks_allocated == from_cblock(mq->cache_size))) {
-
+	if ((mq->hit_count >= mq->generation_period) && (epool_empty(&mq->cache_pool))) {
 		mq->hit_count = 0;
 		mq->generation++;
 
@@ -668,7 +598,7 @@ static void requeue_and_update_tick(struct mq_policy *mq, struct entry *e)
  * - set the hit count to a hard coded value other than 1, eg, is it better
  *   if it goes in at level 2?
  */
-static int demote_cblock(struct mq_policy *mq, dm_oblock_t *oblock, dm_cblock_t *cblock)
+static int demote_cblock(struct mq_policy *mq, dm_oblock_t *oblock)
 {
 	struct entry *demoted = pop(mq, &mq->cache_clean);
 
@@ -682,12 +612,14 @@ static int demote_cblock(struct mq_policy *mq, dm_oblock_t *oblock, dm_cblock_t
 		 */
 		return -ENOSPC;
 
-	*cblock = demoted->cblock;
 	*oblock = demoted->oblock;
-	demoted->in_cache = false;
-	demoted->dirty = false;
-	demoted->hit_count = 1;
-	push(mq, demoted);
+	free_entry(&mq->cache_pool, demoted);
+
+	/*
+	 * We used to put the demoted block into the pre-cache, but I think
+	 * it's simpler to just let it work it's way up from zero again.
+	 * Stops blocks flickering in and out of the cache.
+	 */
 
 	return 0;
 }
@@ -735,9 +667,9 @@ static int cache_entry_found(struct mq_policy *mq,
 {
 	requeue_and_update_tick(mq, e);
 
-	if (e->in_cache) {
+	if (in_cache(mq, e)) {
 		result->op = POLICY_HIT;
-		result->cblock = e->cblock;
+		result->cblock = infer_cblock(&mq->cache_pool, e);
 	}
 
 	return 0;
@@ -751,11 +683,12 @@ static int pre_cache_to_cache(struct mq_policy *mq, struct entry *e,
 			      struct policy_result *result)
 {
 	int r;
-	dm_cblock_t cblock;
+	struct entry *new_e;
 
-	if (find_free_cblock(mq, &cblock) == -ENOSPC) {
+	/* Ensure there's a free cblock in the cache */
+	if (epool_empty(&mq->cache_pool)) {
 		result->op = POLICY_REPLACE;
-		r = demote_cblock(mq, &result->old_oblock, &cblock);
+		r = demote_cblock(mq, &result->old_oblock);
 		if (r) {
 			result->op = POLICY_MISS;
 			return 0;
@@ -763,12 +696,20 @@ static int pre_cache_to_cache(struct mq_policy *mq, struct entry *e,
 	} else
 		result->op = POLICY_NEW;
 
-	result->cblock = e->cblock = cblock;
+	new_e = alloc_entry(&mq->cache_pool);
+	BUG_ON(!new_e);
+
+	new_e->oblock = e->oblock;
+	new_e->dirty = false;
+	new_e->hit_count = e->hit_count;
+	new_e->generation = e->generation;
+	new_e->tick = e->tick;
 
 	del(mq, e);
-	e->in_cache = true;
-	e->dirty = false;
-	push(mq, e);
+	free_entry(&mq->pre_cache_pool, e);
+	push(mq, new_e);
+
+	result->cblock = infer_cblock(&mq->cache_pool, new_e);
 
 	return 0;
 }
@@ -793,21 +734,10 @@ static int pre_cache_entry_found(struct mq_policy *mq, struct entry *e,
 	return r;
 }
 
-static void insert_entry_in_pre_cache(struct mq_policy *mq,
-				      struct entry *e, dm_oblock_t oblock)
-{
-	e->in_cache = false;
-	e->dirty = false;
-	e->oblock = oblock;
-	e->hit_count = 1;
-	e->generation = mq->generation;
-	push(mq, e);
-}
-
 static void insert_in_pre_cache(struct mq_policy *mq,
 				dm_oblock_t oblock)
 {
-	struct entry *e = alloc_entry(mq);
+	struct entry *e = alloc_entry(&mq->pre_cache_pool);
 
 	if (!e)
 		/*
@@ -821,7 +751,11 @@ static void insert_in_pre_cache(struct mq_policy *mq,
 		return;
 	}
 
-	insert_entry_in_pre_cache(mq, e, oblock);
+	e->dirty = false;
+	e->oblock = oblock;
+	e->hit_count = 1;
+	e->generation = mq->generation;
+	push(mq, e);
 }
 
 static void insert_in_cache(struct mq_policy *mq, dm_oblock_t oblock,
@@ -829,10 +763,10 @@ static void insert_in_cache(struct mq_policy *mq, dm_oblock_t oblock,
 {
 	int r;
 	struct entry *e;
-	dm_cblock_t cblock;
 
-	if (find_free_cblock(mq, &cblock) == -ENOSPC) {
-		r = demote_cblock(mq, &result->old_oblock, &cblock);
+	if (epool_empty(&mq->cache_pool)) {
+		result->op = POLICY_REPLACE;
+		r = demote_cblock(mq, &result->old_oblock);
 		if (unlikely(r)) {
 			result->op = POLICY_MISS;
 			insert_in_pre_cache(mq, oblock);
@@ -842,31 +776,21 @@ static void insert_in_cache(struct mq_policy *mq, dm_oblock_t oblock,
 		/*
 		 * This will always succeed, since we've just demoted.
 		 */
-		e = pop(mq, &mq->pre_cache);
-		result->op = POLICY_REPLACE;
+		e = alloc_entry(&mq->cache_pool);
+		BUG_ON(!e);
 
 	} else {
-		e = alloc_entry(mq);
-		if (unlikely(!e))
-			e = pop(mq, &mq->pre_cache);
-
-		if (unlikely(!e)) {
-			result->op = POLICY_MISS;
-			return;
-		}
-
+		e = alloc_entry(&mq->cache_pool);
 		result->op = POLICY_NEW;
 	}
 
 	e->oblock = oblock;
-	e->cblock = cblock;
-	e->in_cache = true;
 	e->dirty = false;
 	e->hit_count = 1;
 	e->generation = mq->generation;
 	push(mq, e);
 
-	result->cblock = e->cblock;
+	result->cblock = infer_cblock(&mq->cache_pool, e);
 }
 
 static int no_entry_found(struct mq_policy *mq, dm_oblock_t oblock,
@@ -897,13 +821,16 @@ static int map(struct mq_policy *mq, dm_oblock_t oblock,
 	int r = 0;
 	struct entry *e = hash_lookup(mq, oblock);
 
-	if (e && e->in_cache)
+	if (e && in_cache(mq, e))
 		r = cache_entry_found(mq, e, result);
+
 	else if (iot_pattern(&mq->tracker) == PATTERN_SEQUENTIAL)
 		result->op = POLICY_MISS;
+
 	else if (e)
 		r = pre_cache_entry_found(mq, e, can_migrate, discarded_oblock,
 					  data_dir, result);
+
 	else
 		r = no_entry_found(mq, oblock, can_migrate, discarded_oblock,
 				   data_dir, result);
@@ -930,9 +857,9 @@ static void mq_destroy(struct dm_cache_policy *p)
 {
 	struct mq_policy *mq = to_mq_policy(p);
 
-	free_bitset(mq->allocation_bitset);
 	kfree(mq->table);
-	free_entries(mq);
+	epool_exit(&mq->cache_pool);
+	epool_exit(&mq->pre_cache_pool);
 	kfree(mq);
 }
 
@@ -980,8 +907,8 @@ static int mq_lookup(struct dm_cache_policy *p, dm_oblock_t oblock, dm_cblock_t
 		return -EWOULDBLOCK;
 
 	e = hash_lookup(mq, oblock);
-	if (e && e->in_cache) {
-		*cblock = e->cblock;
+	if (e && in_cache(mq, e)) {
+		*cblock = infer_cblock(&mq->cache_pool, e);
 		r = 0;
 	} else
 		r = -ENOENT;
@@ -991,38 +918,34 @@ static int mq_lookup(struct dm_cache_policy *p, dm_oblock_t oblock, dm_cblock_t
 	return r;
 }
 
-/*
- * FIXME: __mq_set_clear_dirty can block due to mutex.
- * Ideally a policy should not block in functions called
- * from the map() function.  Explore using RCU.
- */
-static void __mq_set_clear_dirty(struct dm_cache_policy *p, dm_oblock_t oblock, bool set)
+static void __mq_set_clear_dirty(struct mq_policy *mq, dm_oblock_t oblock, bool set)
 {
-	struct mq_policy *mq = to_mq_policy(p);
 	struct entry *e;
 
-	mutex_lock(&mq->lock);
 	e = hash_lookup(mq, oblock);
-	if (!e)
-		DMWARN("__mq_set_clear_dirty called for a block that isn't in the cache");
-	else {
-		BUG_ON(!e->in_cache);
+	BUG_ON(!e || !in_cache(mq, e));
 
-		del(mq, e);
-		e->dirty = set;
-		push(mq, e);
-	}
-	mutex_unlock(&mq->lock);
+	del(mq, e);
+	e->dirty = set;
+	push(mq, e);
 }
 
 static void mq_set_dirty(struct dm_cache_policy *p, dm_oblock_t oblock)
 {
-	__mq_set_clear_dirty(p, oblock, true);
+	struct mq_policy *mq = to_mq_policy(p);
+
+	mutex_lock(&mq->lock);
+	__mq_set_clear_dirty(mq, oblock, true);
+	mutex_unlock(&mq->lock);
 }
 
 static void mq_clear_dirty(struct dm_cache_policy *p, dm_oblock_t oblock)
 {
-	__mq_set_clear_dirty(p, oblock, false);
+	struct mq_policy *mq = to_mq_policy(p);
+
+	mutex_lock(&mq->lock);
+	__mq_set_clear_dirty(mq, oblock, false);
+	mutex_unlock(&mq->lock);
 }
 
 static int mq_load_mapping(struct dm_cache_policy *p,
@@ -1032,13 +955,8 @@ static int mq_load_mapping(struct dm_cache_policy *p,
 	struct mq_policy *mq = to_mq_policy(p);
 	struct entry *e;
 
-	e = alloc_entry(mq);
-	if (!e)
-		return -ENOMEM;
-
-	e->cblock = cblock;
+	e = alloc_particular_entry(&mq->cache_pool, cblock);
 	e->oblock = oblock;
-	e->in_cache = true;
 	e->dirty = false;	/* this gets corrected in a minute */
 	e->hit_count = hint_valid ? hint : 1;
 	e->generation = mq->generation;
@@ -1047,52 +965,58 @@ static int mq_load_mapping(struct dm_cache_policy *p,
 	return 0;
 }
 
+static int mq_save_hints(struct mq_policy *mq, struct queue *q,
+			 policy_walk_fn fn, void *context)
+{
+	int r;
+	unsigned level;
+	struct entry *e;
+
+	for (level = 0; level < NR_QUEUE_LEVELS; level++)
+		list_for_each_entry(e, q->qs + level, list) {
+			r = fn(context, infer_cblock(&mq->cache_pool, e),
+			       e->oblock, e->hit_count);
+			if (r)
+				return r;
+		}
+
+	return 0;
+}
+
 static int mq_walk_mappings(struct dm_cache_policy *p, policy_walk_fn fn,
 			    void *context)
 {
 	struct mq_policy *mq = to_mq_policy(p);
 	int r = 0;
-	struct entry *e;
-	unsigned level;
 
 	mutex_lock(&mq->lock);
 
-	for (level = 0; level < NR_QUEUE_LEVELS; level++)
-		list_for_each_entry(e, &mq->cache_clean.qs[level], list) {
-			r = fn(context, e->cblock, e->oblock, e->hit_count);
-			if (r)
-				goto out;
-		}
-
-	for (level = 0; level < NR_QUEUE_LEVELS; level++)
-		list_for_each_entry(e, &mq->cache_dirty.qs[level], list) {
-			r = fn(context, e->cblock, e->oblock, e->hit_count);
-			if (r)
-				goto out;
-		}
+	r = mq_save_hints(mq, &mq->cache_clean, fn, context);
+	if (!r)
+		r = mq_save_hints(mq, &mq->cache_dirty, fn, context);
 
-out:
 	mutex_unlock(&mq->lock);
 
 	return r;
 }
 
-static void mq_remove_mapping(struct dm_cache_policy *p, dm_oblock_t oblock)
+static void __remove_mapping(struct mq_policy *mq, dm_oblock_t oblock)
 {
-	struct mq_policy *mq = to_mq_policy(p);
 	struct entry *e;
 
-	mutex_lock(&mq->lock);
-
 	e = hash_lookup(mq, oblock);
-
-	BUG_ON(!e || !e->in_cache);
+	BUG_ON(!e || !in_cache(mq, e));
 
 	del(mq, e);
-	e->in_cache = false;
-	e->dirty = false;
-	push(mq, e);
+	free_entry(&mq->cache_pool, e);
+}
+
+static void mq_remove_mapping(struct dm_cache_policy *p, dm_oblock_t oblock)
+{
+	struct mq_policy *mq = to_mq_policy(p);
 
+	mutex_lock(&mq->lock);
+	__remove_mapping(mq, oblock);
 	mutex_unlock(&mq->lock);
 }
 
@@ -1105,7 +1029,7 @@ static int __mq_writeback_work(struct mq_policy *mq, dm_oblock_t *oblock,
 		return -ENODATA;
 
 	*oblock = e->oblock;
-	*cblock = e->cblock;
+	*cblock = infer_cblock(&mq->cache_pool, e);
 	e->dirty = false;
 	push(mq, e);
 
@@ -1125,17 +1049,17 @@ static int mq_writeback_work(struct dm_cache_policy *p, dm_oblock_t *oblock,
 	return r;
 }
 
-static void force_mapping(struct mq_policy *mq,
-			  dm_oblock_t current_oblock, dm_oblock_t new_oblock)
+static void __force_mapping(struct mq_policy *mq,
+			    dm_oblock_t current_oblock, dm_oblock_t new_oblock)
 {
 	struct entry *e = hash_lookup(mq, current_oblock);
 
-	BUG_ON(!e || !e->in_cache);
-
-	del(mq, e);
-	e->oblock = new_oblock;
-	e->dirty = true;
-	push(mq, e);
+	if (e && in_cache(mq, e)) {
+		del(mq, e);
+		e->oblock = new_oblock;
+		e->dirty = true;
+		push(mq, e);
+	}
 }
 
 static void mq_force_mapping(struct dm_cache_policy *p,
@@ -1144,7 +1068,7 @@ static void mq_force_mapping(struct dm_cache_policy *p,
 	struct mq_policy *mq = to_mq_policy(p);
 
 	mutex_lock(&mq->lock);
-	force_mapping(mq, current_oblock, new_oblock);
+	__force_mapping(mq, current_oblock, new_oblock);
 	mutex_unlock(&mq->lock);
 }
 
@@ -1154,7 +1078,7 @@ static dm_cblock_t mq_residency(struct dm_cache_policy *p)
 	struct mq_policy *mq = to_mq_policy(p);
 
 	mutex_lock(&mq->lock);
-	r = to_cblock(mq->nr_cblocks_allocated);
+	r = to_cblock(mq->cache_pool.nr_allocated);
 	mutex_unlock(&mq->lock);
 
 	return r;
@@ -1227,7 +1151,6 @@ static struct dm_cache_policy *mq_create(dm_cblock_t cache_size,
 					 sector_t origin_size,
 					 sector_t cache_block_size)
 {
-	int r;
 	struct mq_policy *mq = kzalloc(sizeof(*mq), GFP_KERNEL);
 
 	if (!mq)
@@ -1235,8 +1158,18 @@ static struct dm_cache_policy *mq_create(dm_cblock_t cache_size,
 
 	init_policy_functions(mq);
 	iot_init(&mq->tracker, SEQUENTIAL_THRESHOLD_DEFAULT, RANDOM_THRESHOLD_DEFAULT);
-
 	mq->cache_size = cache_size;
+
+	if (epool_init(&mq->pre_cache_pool, from_cblock(cache_size))) {
+		DMERR("couldn't initialize pool of pre-cache entries");
+		goto bad_pre_cache_init;
+	}
+
+	if (epool_init(&mq->cache_pool, from_cblock(cache_size))) {
+		DMERR("couldn't initialize pool of cache entries");
+		goto bad_cache_init;
+	}
+
 	mq->tick_protected = 0;
 	mq->tick = 0;
 	mq->hit_count = 0;
@@ -1244,8 +1177,6 @@ static struct dm_cache_policy *mq_create(dm_cblock_t cache_size,
 	mq->promote_threshold = 0;
 	mutex_init(&mq->lock);
 	spin_lock_init(&mq->tick_lock);
-	mq->find_free_nr_words = dm_div_up(from_cblock(mq->cache_size), BITS_PER_LONG);
-	mq->find_free_last_word = 0;
 
 	queue_init(&mq->pre_cache);
 	queue_init(&mq->cache_clean);
@@ -1253,31 +1184,19 @@ static struct dm_cache_policy *mq_create(dm_cblock_t cache_size,
 
 	mq->generation_period = max((unsigned) from_cblock(cache_size), 1024U);
 
-	mq->nr_entries = 2 * from_cblock(cache_size);
-	r = alloc_entries(mq, mq->nr_entries);
-	if (r)
-		goto bad_cache_alloc;
-
-	mq->nr_entries_allocated = 0;
-	mq->nr_cblocks_allocated = 0;
-
 	mq->nr_buckets = next_power(from_cblock(cache_size) / 2, 16);
 	mq->hash_bits = ffs(mq->nr_buckets) - 1;
 	mq->table = kzalloc(sizeof(*mq->table) * mq->nr_buckets, GFP_KERNEL);
 	if (!mq->table)
 		goto bad_alloc_table;
 
-	mq->allocation_bitset = alloc_bitset(from_cblock(cache_size));
-	if (!mq->allocation_bitset)
-		goto bad_alloc_bitset;
-
 	return &mq->policy;
 
-bad_alloc_bitset:
-	kfree(mq->table);
 bad_alloc_table:
-	free_entries(mq);
-bad_cache_alloc:
+	epool_exit(&mq->cache_pool);
+bad_cache_init:
+	epool_exit(&mq->pre_cache_pool);
+bad_pre_cache_init:
 	kfree(mq);
 
 	return NULL;
@@ -1287,7 +1206,7 @@ bad_cache_alloc:
 
 static struct dm_cache_policy_type mq_policy_type = {
 	.name = "mq",
-	.version = {1, 0, 0},
+	.version = {1, 1, 0},
 	.hint_size = 4,
 	.owner = THIS_MODULE,
 	.create = mq_create
@@ -1295,7 +1214,7 @@ static struct dm_cache_policy_type mq_policy_type = {
 
 static struct dm_cache_policy_type default_policy_type = {
 	.name = "default",
-	.version = {1, 0, 0},
+	.version = {1, 1, 0},
 	.hint_size = 4,
 	.owner = THIS_MODULE,
 	.create = mq_create
-- 
cgit 


From 532906aa7f9656209f30f08dfadd328fc1bc6912 Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Fri, 8 Nov 2013 16:36:17 +0000
Subject: dm cache: add remove_cblock method to policy interface

Implement policy_remove_cblock() and add remove_cblock method to the mq
policy.  These methods will be used by the following cache block
invalidation patch which adds the 'invalidate_cblocks' message to the
cache core.

Also, update some comments in dm-cache-policy.h

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 drivers/md/dm-cache-policy-internal.h |  5 +++++
 drivers/md/dm-cache-policy-mq.c       | 35 +++++++++++++++++++++++++++++++++++
 drivers/md/dm-cache-policy.h          | 21 +++++++++++++++++----
 3 files changed, 57 insertions(+), 4 deletions(-)

diff --git a/drivers/md/dm-cache-policy-internal.h b/drivers/md/dm-cache-policy-internal.h
index a75f7e7498eb..2256a1f24f73 100644
--- a/drivers/md/dm-cache-policy-internal.h
+++ b/drivers/md/dm-cache-policy-internal.h
@@ -64,6 +64,11 @@ static inline void policy_remove_mapping(struct dm_cache_policy *p, dm_oblock_t
 	p->remove_mapping(p, oblock);
 }
 
+static inline int policy_remove_cblock(struct dm_cache_policy *p, dm_cblock_t cblock)
+{
+	return p->remove_cblock(p, cblock);
+}
+
 static inline void policy_force_mapping(struct dm_cache_policy *p,
 					dm_oblock_t current_oblock, dm_oblock_t new_oblock)
 {
diff --git a/drivers/md/dm-cache-policy-mq.c b/drivers/md/dm-cache-policy-mq.c
index 782bf854666a..7209fab8b8ed 100644
--- a/drivers/md/dm-cache-policy-mq.c
+++ b/drivers/md/dm-cache-policy-mq.c
@@ -304,6 +304,15 @@ static void free_entry(struct entry_pool *ep, struct entry *e)
 	list_add(&e->list, &ep->free);
 }
 
+/*
+ * Returns NULL if the entry is free.
+ */
+static struct entry *epool_find(struct entry_pool *ep, dm_cblock_t cblock)
+{
+	struct entry *e = ep->entries + from_cblock(cblock);
+	return e->hlist.pprev ? e : NULL;
+}
+
 static bool epool_empty(struct entry_pool *ep)
 {
 	return list_empty(&ep->free);
@@ -1020,6 +1029,31 @@ static void mq_remove_mapping(struct dm_cache_policy *p, dm_oblock_t oblock)
 	mutex_unlock(&mq->lock);
 }
 
+static int __remove_cblock(struct mq_policy *mq, dm_cblock_t cblock)
+{
+	struct entry *e = epool_find(&mq->cache_pool, cblock);
+
+	if (!e)
+		return -ENODATA;
+
+	del(mq, e);
+	free_entry(&mq->cache_pool, e);
+
+	return 0;
+}
+
+static int mq_remove_cblock(struct dm_cache_policy *p, dm_cblock_t cblock)
+{
+	int r;
+	struct mq_policy *mq = to_mq_policy(p);
+
+	mutex_lock(&mq->lock);
+	r = __remove_cblock(mq, cblock);
+	mutex_unlock(&mq->lock);
+
+	return r;
+}
+
 static int __mq_writeback_work(struct mq_policy *mq, dm_oblock_t *oblock,
 			      dm_cblock_t *cblock)
 {
@@ -1139,6 +1173,7 @@ static void init_policy_functions(struct mq_policy *mq)
 	mq->policy.load_mapping = mq_load_mapping;
 	mq->policy.walk_mappings = mq_walk_mappings;
 	mq->policy.remove_mapping = mq_remove_mapping;
+	mq->policy.remove_cblock = mq_remove_cblock;
 	mq->policy.writeback_work = mq_writeback_work;
 	mq->policy.force_mapping = mq_force_mapping;
 	mq->policy.residency = mq_residency;
diff --git a/drivers/md/dm-cache-policy.h b/drivers/md/dm-cache-policy.h
index 33369ca9614f..052c00a84a5c 100644
--- a/drivers/md/dm-cache-policy.h
+++ b/drivers/md/dm-cache-policy.h
@@ -135,9 +135,6 @@ struct dm_cache_policy {
 	 */
 	int (*lookup)(struct dm_cache_policy *p, dm_oblock_t oblock, dm_cblock_t *cblock);
 
-	/*
-	 * oblock must be a mapped block.  Must not block.
-	 */
 	void (*set_dirty)(struct dm_cache_policy *p, dm_oblock_t oblock);
 	void (*clear_dirty)(struct dm_cache_policy *p, dm_oblock_t oblock);
 
@@ -159,8 +156,24 @@ struct dm_cache_policy {
 	void (*force_mapping)(struct dm_cache_policy *p, dm_oblock_t current_oblock,
 			      dm_oblock_t new_oblock);
 
-	int (*writeback_work)(struct dm_cache_policy *p, dm_oblock_t *oblock, dm_cblock_t *cblock);
+	/*
+	 * This is called via the invalidate_cblocks message.  It is
+	 * possible the particular cblock has already been removed due to a
+	 * write io in passthrough mode.  In which case this should return
+	 * -ENODATA.
+	 */
+	int (*remove_cblock)(struct dm_cache_policy *p, dm_cblock_t cblock);
 
+	/*
+	 * Provide a dirty block to be written back by the core target.
+	 *
+	 * Returns:
+	 *
+	 * 0 and @cblock,@oblock: block to write back provided
+	 *
+	 * -ENODATA: no dirty blocks available
+	 */
+	int (*writeback_work)(struct dm_cache_policy *p, dm_oblock_t *oblock, dm_cblock_t *cblock);
 
 	/*
 	 * How full is the cache?
-- 
cgit 


From 65790ff919e2e07ccb4457415c11075b245d643b Mon Sep 17 00:00:00 2001
From: Joe Thornber <ejt@redhat.com>
Date: Fri, 8 Nov 2013 16:39:50 +0000
Subject: dm cache: add cache block invalidation support

Cache block invalidation is removing an entry from the cache without
writing it back.  Cache blocks can be invalidated via the
'invalidate_cblocks' message, which takes an arbitrary number of cblock
ranges:
   invalidate_cblocks [<cblock>|<cblock begin>-<cblock end>]*

E.g.
   dmsetup message my_cache 0 invalidate_cblocks 2345 3456-4567 5678-6789

Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 Documentation/device-mapper/cache.txt |  12 +-
 drivers/md/dm-cache-target.c          | 225 +++++++++++++++++++++++++++++++++-
 2 files changed, 233 insertions(+), 4 deletions(-)

diff --git a/Documentation/device-mapper/cache.txt b/Documentation/device-mapper/cache.txt
index ff6639f72536..fc9d2dfb9415 100644
--- a/Documentation/device-mapper/cache.txt
+++ b/Documentation/device-mapper/cache.txt
@@ -244,12 +244,22 @@ The message format is:
 E.g.
    dmsetup message my_cache 0 sequential_threshold 1024
 
+
+Invalidation is removing an entry from the cache without writing it
+back.  Cache blocks can be invalidated via the invalidate_cblocks
+message, which takes an arbitrary number of cblock ranges.
+
+   invalidate_cblocks [<cblock>|<cblock begin>-<cblock end>]*
+
+E.g.
+   dmsetup message my_cache 0 invalidate_cblocks 2345 3456-4567 5678-6789
+
 Examples
 ========
 
 The test suite can be found here:
 
-https://github.com/jthornber/thinp-test-suite
+https://github.com/jthornber/device-mapper-test-suite
 
 dmsetup create my_cache --table '0 41943040 cache /dev/mapper/metadata \
 	/dev/mapper/ssd /dev/mapper/origin 512 1 writeback default 0'
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 8c0217753cc5..41e664b474f1 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -150,6 +150,25 @@ struct cache_stats {
 	atomic_t discard_count;
 };
 
+/*
+ * Defines a range of cblocks, begin to (end - 1) are in the range.  end is
+ * the one-past-the-end value.
+ */
+struct cblock_range {
+	dm_cblock_t begin;
+	dm_cblock_t end;
+};
+
+struct invalidation_request {
+	struct list_head list;
+	struct cblock_range *cblocks;
+
+	atomic_t complete;
+	int err;
+
+	wait_queue_head_t result_wait;
+};
+
 struct cache {
 	struct dm_target *ti;
 	struct dm_target_callbacks callbacks;
@@ -241,6 +260,7 @@ struct cache {
 
 	bool need_tick_bio:1;
 	bool sized:1;
+	bool invalidate:1;
 	bool commit_requested:1;
 	bool loaded_mappings:1;
 	bool loaded_discards:1;
@@ -251,6 +271,12 @@ struct cache {
 	struct cache_features features;
 
 	struct cache_stats stats;
+
+	/*
+	 * Invalidation fields.
+	 */
+	spinlock_t invalidation_lock;
+	struct list_head invalidation_requests;
 };
 
 struct per_bio_data {
@@ -283,6 +309,7 @@ struct dm_cache_migration {
 	bool demote:1;
 	bool promote:1;
 	bool requeue_holder:1;
+	bool invalidate:1;
 
 	struct dm_bio_prison_cell *old_ocell;
 	struct dm_bio_prison_cell *new_ocell;
@@ -904,8 +931,11 @@ static void migration_success_post_commit(struct dm_cache_migration *mg)
 			list_add_tail(&mg->list, &cache->quiesced_migrations);
 			spin_unlock_irqrestore(&cache->lock, flags);
 
-		} else
+		} else {
+			if (mg->invalidate)
+				policy_remove_mapping(cache->policy, mg->old_oblock);
 			cleanup_migration(mg);
+		}
 
 	} else {
 		if (mg->requeue_holder)
@@ -1115,6 +1145,7 @@ static void promote(struct cache *cache, struct prealloc *structs,
 	mg->demote = false;
 	mg->promote = true;
 	mg->requeue_holder = true;
+	mg->invalidate = false;
 	mg->cache = cache;
 	mg->new_oblock = oblock;
 	mg->cblock = cblock;
@@ -1137,6 +1168,7 @@ static void writeback(struct cache *cache, struct prealloc *structs,
 	mg->demote = false;
 	mg->promote = false;
 	mg->requeue_holder = true;
+	mg->invalidate = false;
 	mg->cache = cache;
 	mg->old_oblock = oblock;
 	mg->cblock = cblock;
@@ -1161,6 +1193,7 @@ static void demote_then_promote(struct cache *cache, struct prealloc *structs,
 	mg->demote = true;
 	mg->promote = true;
 	mg->requeue_holder = true;
+	mg->invalidate = false;
 	mg->cache = cache;
 	mg->old_oblock = old_oblock;
 	mg->new_oblock = new_oblock;
@@ -1188,6 +1221,7 @@ static void invalidate(struct cache *cache, struct prealloc *structs,
 	mg->demote = true;
 	mg->promote = false;
 	mg->requeue_holder = true;
+	mg->invalidate = true;
 	mg->cache = cache;
 	mg->old_oblock = oblock;
 	mg->cblock = cblock;
@@ -1524,6 +1558,58 @@ static void writeback_some_dirty_blocks(struct cache *cache)
 	prealloc_free_structs(cache, &structs);
 }
 
+/*----------------------------------------------------------------
+ * Invalidations.
+ * Dropping something from the cache *without* writing back.
+ *--------------------------------------------------------------*/
+
+static void process_invalidation_request(struct cache *cache, struct invalidation_request *req)
+{
+	int r = 0;
+	uint64_t begin = from_cblock(req->cblocks->begin);
+	uint64_t end = from_cblock(req->cblocks->end);
+
+	while (begin != end) {
+		r = policy_remove_cblock(cache->policy, to_cblock(begin));
+		if (!r) {
+			r = dm_cache_remove_mapping(cache->cmd, to_cblock(begin));
+			if (r)
+				break;
+
+		} else if (r == -ENODATA) {
+			/* harmless, already unmapped */
+			r = 0;
+
+		} else {
+			DMERR("policy_remove_cblock failed");
+			break;
+		}
+
+		begin++;
+        }
+
+	cache->commit_requested = true;
+
+	req->err = r;
+	atomic_set(&req->complete, 1);
+
+	wake_up(&req->result_wait);
+}
+
+static void process_invalidation_requests(struct cache *cache)
+{
+	struct list_head list;
+	struct invalidation_request *req, *tmp;
+
+	INIT_LIST_HEAD(&list);
+	spin_lock(&cache->invalidation_lock);
+	list_splice_init(&cache->invalidation_requests, &list);
+	spin_unlock(&cache->invalidation_lock);
+
+	list_for_each_entry_safe (req, tmp, &list, list)
+		process_invalidation_request(cache, req);
+}
+
 /*----------------------------------------------------------------
  * Main worker loop
  *--------------------------------------------------------------*/
@@ -1593,7 +1679,8 @@ static int more_work(struct cache *cache)
 			!bio_list_empty(&cache->deferred_writethrough_bios) ||
 			!list_empty(&cache->quiesced_migrations) ||
 			!list_empty(&cache->completed_migrations) ||
-			!list_empty(&cache->need_commit_migrations);
+			!list_empty(&cache->need_commit_migrations) ||
+			cache->invalidate;
 }
 
 static void do_worker(struct work_struct *ws)
@@ -1605,6 +1692,7 @@ static void do_worker(struct work_struct *ws)
 			writeback_some_dirty_blocks(cache);
 			process_deferred_writethrough_bios(cache);
 			process_deferred_bios(cache);
+			process_invalidation_requests(cache);
 		}
 
 		process_migrations(cache, &cache->quiesced_migrations, issue_copy);
@@ -2271,6 +2359,7 @@ static int cache_create(struct cache_args *ca, struct cache **result)
 
 	cache->need_tick_bio = true;
 	cache->sized = false;
+	cache->invalidate = false;
 	cache->commit_requested = false;
 	cache->loaded_mappings = false;
 	cache->loaded_discards = false;
@@ -2284,6 +2373,9 @@ static int cache_create(struct cache_args *ca, struct cache **result)
 	atomic_set(&cache->stats.commit_count, 0);
 	atomic_set(&cache->stats.discard_count, 0);
 
+	spin_lock_init(&cache->invalidation_lock);
+	INIT_LIST_HEAD(&cache->invalidation_requests);
+
 	*result = cache;
 	return 0;
 
@@ -2833,7 +2925,128 @@ err:
 }
 
 /*
- * Supports <key> <value>.
+ * A cache block range can take two forms:
+ *
+ * i) A single cblock, eg. '3456'
+ * ii) A begin and end cblock with dots between, eg. 123-234
+ */
+static int parse_cblock_range(struct cache *cache, const char *str,
+			      struct cblock_range *result)
+{
+	char dummy;
+	uint64_t b, e;
+	int r;
+
+	/*
+	 * Try and parse form (ii) first.
+	 */
+	r = sscanf(str, "%llu-%llu%c", &b, &e, &dummy);
+	if (r < 0)
+		return r;
+
+	if (r == 2) {
+		result->begin = to_cblock(b);
+		result->end = to_cblock(e);
+		return 0;
+	}
+
+	/*
+	 * That didn't work, try form (i).
+	 */
+	r = sscanf(str, "%llu%c", &b, &dummy);
+	if (r < 0)
+		return r;
+
+	if (r == 1) {
+		result->begin = to_cblock(b);
+		result->end = to_cblock(from_cblock(result->begin) + 1u);
+		return 0;
+	}
+
+	DMERR("invalid cblock range '%s'", str);
+	return -EINVAL;
+}
+
+static int validate_cblock_range(struct cache *cache, struct cblock_range *range)
+{
+	uint64_t b = from_cblock(range->begin);
+	uint64_t e = from_cblock(range->end);
+	uint64_t n = from_cblock(cache->cache_size);
+
+	if (b >= n) {
+		DMERR("begin cblock out of range: %llu >= %llu", b, n);
+		return -EINVAL;
+	}
+
+	if (e > n) {
+		DMERR("end cblock out of range: %llu > %llu", e, n);
+		return -EINVAL;
+	}
+
+	if (b >= e) {
+		DMERR("invalid cblock range: %llu >= %llu", b, e);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int request_invalidation(struct cache *cache, struct cblock_range *range)
+{
+	struct invalidation_request req;
+
+	INIT_LIST_HEAD(&req.list);
+	req.cblocks = range;
+	atomic_set(&req.complete, 0);
+	req.err = 0;
+	init_waitqueue_head(&req.result_wait);
+
+	spin_lock(&cache->invalidation_lock);
+	list_add(&req.list, &cache->invalidation_requests);
+	spin_unlock(&cache->invalidation_lock);
+	wake_worker(cache);
+
+	wait_event(req.result_wait, atomic_read(&req.complete));
+	return req.err;
+}
+
+static int process_invalidate_cblocks_message(struct cache *cache, unsigned count,
+					      const char **cblock_ranges)
+{
+	int r = 0;
+	unsigned i;
+	struct cblock_range range;
+
+	if (!passthrough_mode(&cache->features)) {
+		DMERR("cache has to be in passthrough mode for invalidation");
+		return -EPERM;
+	}
+
+	for (i = 0; i < count; i++) {
+		r = parse_cblock_range(cache, cblock_ranges[i], &range);
+		if (r)
+			break;
+
+		r = validate_cblock_range(cache, &range);
+		if (r)
+			break;
+
+		/*
+		 * Pass begin and end origin blocks to the worker and wake it.
+		 */
+		r = request_invalidation(cache, &range);
+		if (r)
+			break;
+	}
+
+	return r;
+}
+
+/*
+ * Supports
+ *	"<key> <value>"
+ * and
+ *     "invalidate_cblocks [(<begin>)|(<begin>-<end>)]*
  *
  * The key migration_threshold is supported by the cache target core.
  */
@@ -2841,6 +3054,12 @@ static int cache_message(struct dm_target *ti, unsigned argc, char **argv)
 {
 	struct cache *cache = ti->private;
 
+	if (!argc)
+		return -EINVAL;
+
+	if (!strcmp(argv[0], "invalidate_cblocks"))
+		return process_invalidate_cblocks_message(cache, argc - 1, (const char **) argv + 1);
+
 	if (argc != 2)
 		return -EINVAL;
 
-- 
cgit 


From 3a81a5210b7d33bb6d836b4c4952a54166a336f3 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Mon, 11 Nov 2013 11:47:06 -0500
Subject: tracing: Add rcu annotation for syscall trace descriptors

sparse complains about the enter/exit_sysycall_files[] variables being
dereferenced with rcu_dereference_sched(). The fields need to be
annotated with __rcu.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/trace.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 11a04d6eaa23..7ca1993c33e4 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -192,8 +192,8 @@ struct trace_array {
 #ifdef CONFIG_FTRACE_SYSCALLS
 	int			sys_refcount_enter;
 	int			sys_refcount_exit;
-	struct ftrace_event_file *enter_syscall_files[NR_syscalls];
-	struct ftrace_event_file *exit_syscall_files[NR_syscalls];
+	struct ftrace_event_file __rcu *enter_syscall_files[NR_syscalls];
+	struct ftrace_event_file __rcu *exit_syscall_files[NR_syscalls];
 #endif
 	int			stop_count;
 	int			clock_id;
-- 
cgit 


From ab7474ea5361f5fe883feb5ae637a1c948df1507 Mon Sep 17 00:00:00 2001
From: Borislav Petkov <bp@suse.de>
Date: Mon, 11 Nov 2013 15:27:43 +0100
Subject: Kbuild: Ignore GREP_OPTIONS env variable

When building the kernel in a shell which defines GREP_OPTIONS so that
grep behavior is modified, we can break the generation of the syscalls
table like so:

__SYSCALL_COMMON(^[[01;31m^[[K0^[[m^[[K, sys_read, sys_read)
__SYSCALL_COMMON(^[[01;31m^[[K1^[[m^[[K, sys_write, sys_write)
__SYSCALL_COMMON(^[[01;31m^[[K1^[[m^[[K0, sys_mprotect, sys_mprotect) ...

This is just the initial breakage, later we barf when generating
modules.

In this case, GREP_OPTIONS contains "--color=always" which adds the shell
colors markup and completely fudges the headers under ...generated/asm/.

Fix that by unexporting the GREP_OPTIONS variable for the whole kernel
build as we tend to use grep at a bunch of places.

Signed-off-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 Makefile | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Makefile b/Makefile
index c060363f11c3..2f6c0e9c684a 100644
--- a/Makefile
+++ b/Makefile
@@ -22,6 +22,9 @@ LC_COLLATE=C
 LC_NUMERIC=C
 export LC_COLLATE LC_NUMERIC
 
+# Avoid interference with shell env settings
+unexport GREP_OPTIONS
+
 # We are using a recursive build, so we need to do a little thinking
 # to get the ordering right.
 #
-- 
cgit 


From 4d7e8061b7dbc327d19e2dd9687e41719d03403e Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Mon, 11 Nov 2013 10:04:17 +0100
Subject: MAINTAINERS: drop discontinued mailing list

The ST-internal Nomadik mailing list is going down. Remove
it from the MAINTAINERS file.

Cc: Olivier CLERGEAUD <olivier.clergeaud@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 MAINTAINERS | 1 -
 1 file changed, 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 4d66a03e4f57..7d280b7c1400 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1056,7 +1056,6 @@ S:	Maintained
 ARM/NOMADIK ARCHITECTURE
 M:	Alessandro Rubini <rubini@unipv.it>
 M:	Linus Walleij <linus.walleij@linaro.org>
-M:	STEricsson <STEricsson_nomadik_linux@list.st.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	arch/arm/mach-nomadik/
-- 
cgit 


From 18c51e1a3fabb455ff1f5cd610097d89f577b8f7 Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Mon, 11 Nov 2013 12:50:30 +0000
Subject: xen/arm: pfn_to_mfn and mfn_to_pfn return the argument if nothing is
 in the p2m

Some common Xen drivers, like balloon.c, call pfn_to_mfn and mfn_to_pfn
even for autotranslate guests, expecting the argument back.
The following commit broke these drivers by changing the behavior of
pfn_to_mfn and mfn_to_pfn:

commit 4a19138c6505e224d9f4cc2fe9ada9188d7100ea
Author: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date:   Thu Oct 17 16:22:27 2013 +0000

    arm/xen,arm64/xen: introduce p2m

They now return INVALID_P2M_ENTRY if Linux doesn't actually know what is
the mfn backing a pfn or what is the pfn corresponding to an mfn.
Fix the regression by switching to the old behavior.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Tested-by: Ian Campbell <ian.campbell@citrix.com>
---
 arch/arm/include/asm/xen/page.h | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/arch/arm/include/asm/xen/page.h b/arch/arm/include/asm/xen/page.h
index 71bb779f2761..75579a9d6f76 100644
--- a/arch/arm/include/asm/xen/page.h
+++ b/arch/arm/include/asm/xen/page.h
@@ -46,10 +46,7 @@ static inline unsigned long pfn_to_mfn(unsigned long pfn)
 			return mfn;
 	}
 
-	if (xen_initial_domain())
-		return pfn;
-	else
-		return INVALID_P2M_ENTRY;
+	return pfn;
 }
 
 static inline unsigned long mfn_to_pfn(unsigned long mfn)
@@ -62,10 +59,7 @@ static inline unsigned long mfn_to_pfn(unsigned long mfn)
 			return pfn;
 	}
 
-	if (xen_initial_domain())
-		return mfn;
-	else
-		return INVALID_P2M_ENTRY;
+	return mfn;
 }
 
 #define mfn_to_local_pfn(mfn) mfn_to_pfn(mfn)
-- 
cgit 


From c6b21824c91c0b52e4a8ffda56605bd680defe80 Mon Sep 17 00:00:00 2001
From: Sean Hefty <sean.hefty@intel.com>
Date: Fri, 1 Nov 2013 14:39:50 -0700
Subject: RDMA/ucma: Discard events for IDs not yet claimed by user space

Problem reported by Avneesh Pant <avneesh.pant@oracle.com>:

    It looks like we are triggering a bug in RDMA CM/UCM interaction.
    The bug specifically hits when we have an incoming connection
    request and the connecting process dies BEFORE the passive end of
    the connection can process the request i.e. it does not call
    rdma_get_cm_event() to retrieve the initial connection event.  We
    were able to triage this further and have some additional
    information now.

    In the example below when P1 dies after issuing a connect request
    as the CM id is being destroyed all outstanding connects (to P2)
    are sent a reject message. We see this reject message being
    received on the passive end and the appropriate CM ID created for
    the initial connection message being retrieved in cm_match_req().
    The problem is in the ucma_event_handler() code when this reject
    message is delivered to it and the initial connect message itself
    HAS NOT been delivered to the client. In fact the client has not
    even called rdma_cm_get_event() at this stage so we haven't
    allocated a new ctx in ucma_get_event() and updated the new
    connection CM_ID to point to the new UCMA context.

    This results in the reject message not being dropped in
    ucma_event_handler() for the new connection request as the
    (if (!ctx->uid)) block is skipped since the ctx it refers to is
    the listen CM id context which does have a valid UID associated
    with it (I believe the new CMID for the connection initially
    uses the listen CMID -> context when it is created in
    cma_new_conn_id). Thus the assumption that new events for a
    connection can get dropped in ucma_event_handler() is incorrect
    IF the initial connect request has not been retrieved in the
    first case. We end up getting a CM Reject event on the listen CM
    ID and our upper layer code asserts (in fact this event does not
    even have the listen_id set as that only gets set up librdmacm
    for connect requests).

The solution is to verify that the cm_id being reported in the event
is the same as the cm_id referenced by the ucma context.  A mismatch
indicates that the ucma context corresponds to the listen.  This fix
was validated by using a modified version of librdmacm that was able
to verify the problem and see that the reject message was indeed
dropped after this patch was applied.

Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/core/ucma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index b0f189be543b..826016b013ca 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -271,7 +271,7 @@ static int ucma_event_handler(struct rdma_cm_id *cm_id,
 			goto out;
 		}
 		ctx->backlog--;
-	} else if (!ctx->uid) {
+	} else if (!ctx->uid || ctx->cm_id != cm_id) {
 		/*
 		 * We ignore events for new connections until userspace has set
 		 * their context.  This can only happen if an error occurs on a
-- 
cgit 


From 352b9056352fdfc2e70f81e3f73b9b5c85b2207b Mon Sep 17 00:00:00 2001
From: Michal Nazarewicz <mina86@mina86.com>
Date: Sun, 10 Nov 2013 19:58:35 +0100
Subject: RDMA/cma: Remove unused argument and minor dead code

The dev variable is never assigned after being initialised.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/core/cma.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c
index dadc486b92f0..830c983fdeff 100644
--- a/drivers/infiniband/core/cma.c
+++ b/drivers/infiniband/core/cma.c
@@ -1452,7 +1452,6 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
 {
 	struct rdma_cm_id *new_cm_id;
 	struct rdma_id_private *listen_id, *conn_id;
-	struct net_device *dev = NULL;
 	struct rdma_cm_event event;
 	int ret;
 	struct ib_device_attr attr;
@@ -1530,8 +1529,6 @@ static int iw_conn_req_handler(struct iw_cm_id *cm_id,
 	cma_deref_id(conn_id);
 
 out:
-	if (dev)
-		dev_put(dev);
 	mutex_unlock(&listen_id->handler_mutex);
 	return ret;
 }
-- 
cgit 


From b5dfcb09debc38582c3cb72a3c1a88b919b07f2d Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Mon, 11 Nov 2013 19:53:42 +0100
Subject: Revert "x86/UV: Add uvtrace support"

This reverts commit 8eba18428ac926f436064ac281e76d36d51bd631.

uv_trace() is not used by anything, nor is uv_trace_nmi_func, nor
uv_trace_func.

That's not how we do instrumentation code in the kernel: we add
tracepoints, printk()s, etc. so that everyone not just those with
magic kernel modules can debug a system.

So remove this unused (and misguied) piece of code.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Mike Travis <travis@sgi.com>
Cc: Dimitri Sivanich <sivanich@sgi.com>
Cc: Hedi Berriche <hedi@sgi.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: Jason Wessel <jason.wessel@windriver.com>
Link: http://lkml.kernel.org/n/tip-tumfBffmr4jmnt8Gyxanoblg@git.kernel.org
---
 arch/x86/include/asm/uv/uv.h  |  8 --------
 arch/x86/platform/uv/uv_nmi.c | 13 +------------
 2 files changed, 1 insertion(+), 20 deletions(-)

diff --git a/arch/x86/include/asm/uv/uv.h b/arch/x86/include/asm/uv/uv.h
index 8b1283daa332..6b964a0b86d1 100644
--- a/arch/x86/include/asm/uv/uv.h
+++ b/arch/x86/include/asm/uv/uv.h
@@ -14,13 +14,6 @@ extern void uv_cpu_init(void);
 extern void uv_nmi_init(void);
 extern void uv_register_nmi_notifier(void);
 extern void uv_system_init(void);
-extern void (*uv_trace_nmi_func)(unsigned int reason, struct pt_regs *regs);
-extern void (*uv_trace_func)(const char *f, const int l, const char *fmt, ...);
-#define uv_trace(fmt, ...)						\
-do {									\
-	if (unlikely(uv_trace_func))					\
-		(uv_trace_func)(__func__, __LINE__, fmt, ##__VA_ARGS__);\
-} while (0)
 extern const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask,
 						 struct mm_struct *mm,
 						 unsigned long start,
@@ -33,7 +26,6 @@ static inline enum uv_system_type get_uv_system_type(void) { return UV_NONE; }
 static inline int is_uv_system(void)	{ return 0; }
 static inline void uv_cpu_init(void)	{ }
 static inline void uv_system_init(void)	{ }
-static inline void uv_trace(void *fmt, ...)	{ }
 static inline void uv_register_nmi_notifier(void) { }
 static inline const struct cpumask *
 uv_flush_tlb_others(const struct cpumask *cpumask, struct mm_struct *mm,
diff --git a/arch/x86/platform/uv/uv_nmi.c b/arch/x86/platform/uv/uv_nmi.c
index 9b8ac60ad8db..2e863ad4a772 100644
--- a/arch/x86/platform/uv/uv_nmi.c
+++ b/arch/x86/platform/uv/uv_nmi.c
@@ -1,5 +1,5 @@
 /*
- * SGI NMI/TRACE support routines
+ * SGI NMI support routines
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -39,13 +39,6 @@
 #include <asm/uv/uv_hub.h>
 #include <asm/uv/uv_mmrs.h>
 
-void (*uv_trace_func)(const char *f, const int l, const char *fmt, ...);
-EXPORT_SYMBOL(uv_trace_func);
-
-void (*uv_trace_nmi_func)(unsigned int reason, struct pt_regs *regs);
-EXPORT_SYMBOL(uv_trace_nmi_func);
-
-
 /*
  * UV handler for NMI
  *
@@ -599,10 +592,6 @@ int uv_handle_nmi(unsigned int reason, struct pt_regs *regs)
 		return NMI_DONE;
 	}
 
-	/* Call possible NMI trace function */
-	if (unlikely(uv_trace_nmi_func))
-		(uv_trace_nmi_func)(reason, regs);
-
 	/* Indicate we are the first CPU into the NMI handler */
 	master = (atomic_read(&uv_nmi_cpu) == cpu);
 
-- 
cgit 


From d53e57d039c323fe3a43630e9f729df48134e2c9 Mon Sep 17 00:00:00 2001
From: Patrick Palka <patrick@parcs.ath.cx>
Date: Fri, 25 Oct 2013 20:25:49 -0400
Subject: perf ui tui progress: Don't force a refresh during progress update

Each call to tui_progress__update() would forcibly refresh the entire
screen.  This is somewhat inefficient and causes noticable flickering
during the startup of perf-report, especially on large/slow terminals.

It looks like the force-refresh in tui_progress__update() serves no
purpose other than to clear the screen so that the progress bar of a
previous operation does not subsume that of a subsequent operation.  But
we can do just that in a much more efficient manner by clearing only the
region that a previous progress bar may have occupied before repainting
the new progress bar.  Then the force-refresh could be removed with no
change in visuals.

This patch disables the slow force-refresh in tui_progress__update() and
instead calls SLsmg_fill_region() on the entire area that the progress
bar may occupy before repainting it.  This change makes the startup of
perf-report much faster and appear much "smoother".

It turns out that this was a big bottleneck in the startup speed of
perf-report -- with this patch, perf-report starts up ~2x faster (1.1s
vs 0.55s) on my machines.  (These numbers were measured by running "time
perf report" on an 8MB perf.data and pressing 'q' immediately.)

Signed-off-by: Patrick Palka <patrick@parcs.ath.cx>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1382747149-9716-1-git-send-email-patrick@parcs.ath.cx
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/ui/tui/progress.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/perf/ui/tui/progress.c b/tools/perf/ui/tui/progress.c
index 3e2d936d7443..c61d14b101e0 100644
--- a/tools/perf/ui/tui/progress.c
+++ b/tools/perf/ui/tui/progress.c
@@ -18,13 +18,14 @@ static void tui_progress__update(struct ui_progress *p)
 	if (p->total == 0)
 		return;
 
-	ui__refresh_dimensions(true);
+	ui__refresh_dimensions(false);
 	pthread_mutex_lock(&ui__lock);
 	y = SLtt_Screen_Rows / 2 - 2;
 	SLsmg_set_color(0);
 	SLsmg_draw_box(y, 0, 3, SLtt_Screen_Cols);
 	SLsmg_gotorc(y++, 1);
 	SLsmg_write_string((char *)p->title);
+	SLsmg_fill_region(y, 1, 1, SLtt_Screen_Cols - 2, ' ');
 	SLsmg_set_color(HE_COLORSET_SELECTED);
 	bar = ((SLtt_Screen_Cols - 2) * p->curr) / p->total;
 	SLsmg_fill_region(y, 1, 1, bar, ' ');
-- 
cgit 


From ef503831d8d64e12c6dad5547875cfcd4c5d043c Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Thu, 7 Nov 2013 16:41:19 -0300
Subject: perf evsel: Remove idx parm from constructor

Most uses of the evsel constructor are followed by a call to
perf_evlist__add with an idex of evlist->nr_entries, so make rename
the current constructor to perf_evsel__new_idx and remove the need
for passing the constructor for the common case.

We still need the new_idx variant because the way groups are handled,
with evsel->nr_members holding the number of entries in an evlist,
partitioning the evlist into sublists inside a single linked list.

This asks for a clarifying refactoring, but for now simplify the non
parser cases, so that tool writers don't have to bother with evsel idx
setting.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-zy9tskx6jqm2rmw7468zze2a@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c                | 13 +++++--------
 tools/perf/tests/evsel-tp-sched.c         |  4 ++--
 tools/perf/tests/mmap-basic.c             |  2 +-
 tools/perf/tests/open-syscall-all-cpus.c  |  2 +-
 tools/perf/tests/open-syscall-tp-fields.c |  2 +-
 tools/perf/tests/open-syscall.c           |  2 +-
 tools/perf/tests/sw-clock.c               |  2 +-
 tools/perf/util/evlist.c                  |  9 +++++----
 tools/perf/util/evsel.c                   |  4 ++--
 tools/perf/util/evsel.h                   | 15 +++++++++++++--
 tools/perf/util/header.c                  |  4 ++--
 tools/perf/util/parse-events.c            |  6 +++---
 12 files changed, 37 insertions(+), 28 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 329b7832b5da..68943cad70d4 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -149,10 +149,9 @@ static void perf_evsel__delete_priv(struct perf_evsel *evsel)
 	perf_evsel__delete(evsel);
 }
 
-static struct perf_evsel *perf_evsel__syscall_newtp(const char *direction,
-						    void *handler, int idx)
+static struct perf_evsel *perf_evsel__syscall_newtp(const char *direction, void *handler)
 {
-	struct perf_evsel *evsel = perf_evsel__newtp("raw_syscalls", direction, idx);
+	struct perf_evsel *evsel = perf_evsel__newtp("raw_syscalls", direction);
 
 	if (evsel) {
 		evsel->priv = malloc(sizeof(struct syscall_tp));
@@ -186,17 +185,16 @@ static int perf_evlist__add_syscall_newtp(struct perf_evlist *evlist,
 					  void *sys_exit_handler)
 {
 	int ret = -1;
-	int idx = evlist->nr_entries;
 	struct perf_evsel *sys_enter, *sys_exit;
 
-	sys_enter = perf_evsel__syscall_newtp("sys_enter", sys_enter_handler, idx++);
+	sys_enter = perf_evsel__syscall_newtp("sys_enter", sys_enter_handler);
 	if (sys_enter == NULL)
 		goto out;
 
 	if (perf_evsel__init_sc_tp_ptr_field(sys_enter, args))
 		goto out_delete_sys_enter;
 
-	sys_exit = perf_evsel__syscall_newtp("sys_exit", sys_exit_handler, idx++);
+	sys_exit = perf_evsel__syscall_newtp("sys_exit", sys_exit_handler);
 	if (sys_exit == NULL)
 		goto out_delete_sys_enter;
 
@@ -1824,8 +1822,7 @@ static size_t trace__fprintf_thread_summary(struct trace *trace, FILE *fp);
 
 static void perf_evlist__add_vfs_getname(struct perf_evlist *evlist)
 {
-	struct perf_evsel *evsel = perf_evsel__newtp("probe", "vfs_getname",
-						     evlist->nr_entries);
+	struct perf_evsel *evsel = perf_evsel__newtp("probe", "vfs_getname");
 	if (evsel == NULL)
 		return;
 
diff --git a/tools/perf/tests/evsel-tp-sched.c b/tools/perf/tests/evsel-tp-sched.c
index 9b98c1554833..4774f7fbb758 100644
--- a/tools/perf/tests/evsel-tp-sched.c
+++ b/tools/perf/tests/evsel-tp-sched.c
@@ -32,7 +32,7 @@ static int perf_evsel__test_field(struct perf_evsel *evsel, const char *name,
 
 int test__perf_evsel__tp_sched_test(void)
 {
-	struct perf_evsel *evsel = perf_evsel__newtp("sched", "sched_switch", 0);
+	struct perf_evsel *evsel = perf_evsel__newtp("sched", "sched_switch");
 	int ret = 0;
 
 	if (evsel == NULL) {
@@ -63,7 +63,7 @@ int test__perf_evsel__tp_sched_test(void)
 
 	perf_evsel__delete(evsel);
 
-	evsel = perf_evsel__newtp("sched", "sched_wakeup", 0);
+	evsel = perf_evsel__newtp("sched", "sched_wakeup");
 
 	if (perf_evsel__test_field(evsel, "comm", 16, true))
 		ret = -1;
diff --git a/tools/perf/tests/mmap-basic.c b/tools/perf/tests/mmap-basic.c
index a7232c204eb9..d64ab79c6d35 100644
--- a/tools/perf/tests/mmap-basic.c
+++ b/tools/perf/tests/mmap-basic.c
@@ -65,7 +65,7 @@ int test__basic_mmap(void)
 		char name[64];
 
 		snprintf(name, sizeof(name), "sys_enter_%s", syscall_names[i]);
-		evsels[i] = perf_evsel__newtp("syscalls", name, i);
+		evsels[i] = perf_evsel__newtp("syscalls", name);
 		if (evsels[i] == NULL) {
 			pr_debug("perf_evsel__new\n");
 			goto out_free_evlist;
diff --git a/tools/perf/tests/open-syscall-all-cpus.c b/tools/perf/tests/open-syscall-all-cpus.c
index b0657a9ccda6..5fecdbd2f5f7 100644
--- a/tools/perf/tests/open-syscall-all-cpus.c
+++ b/tools/perf/tests/open-syscall-all-cpus.c
@@ -26,7 +26,7 @@ int test__open_syscall_event_on_all_cpus(void)
 
 	CPU_ZERO(&cpu_set);
 
-	evsel = perf_evsel__newtp("syscalls", "sys_enter_open", 0);
+	evsel = perf_evsel__newtp("syscalls", "sys_enter_open");
 	if (evsel == NULL) {
 		pr_debug("is debugfs mounted on /sys/kernel/debug?\n");
 		goto out_thread_map_delete;
diff --git a/tools/perf/tests/open-syscall-tp-fields.c b/tools/perf/tests/open-syscall-tp-fields.c
index 524b221b829b..41cc0badb74b 100644
--- a/tools/perf/tests/open-syscall-tp-fields.c
+++ b/tools/perf/tests/open-syscall-tp-fields.c
@@ -27,7 +27,7 @@ int test__syscall_open_tp_fields(void)
 		goto out;
 	}
 
-	evsel = perf_evsel__newtp("syscalls", "sys_enter_open", 0);
+	evsel = perf_evsel__newtp("syscalls", "sys_enter_open");
 	if (evsel == NULL) {
 		pr_debug("%s: perf_evsel__newtp\n", __func__);
 		goto out_delete_evlist;
diff --git a/tools/perf/tests/open-syscall.c b/tools/perf/tests/open-syscall.c
index befc0671f95d..c1dc7d25f38c 100644
--- a/tools/perf/tests/open-syscall.c
+++ b/tools/perf/tests/open-syscall.c
@@ -15,7 +15,7 @@ int test__open_syscall_event(void)
 		return -1;
 	}
 
-	evsel = perf_evsel__newtp("syscalls", "sys_enter_open", 0);
+	evsel = perf_evsel__newtp("syscalls", "sys_enter_open");
 	if (evsel == NULL) {
 		pr_debug("is debugfs mounted on /sys/kernel/debug?\n");
 		goto out_thread_map_delete;
diff --git a/tools/perf/tests/sw-clock.c b/tools/perf/tests/sw-clock.c
index 6e2b44ec0749..73c5c37cb27b 100644
--- a/tools/perf/tests/sw-clock.c
+++ b/tools/perf/tests/sw-clock.c
@@ -42,7 +42,7 @@ static int __test__sw_clock_freq(enum perf_sw_ids clock_id)
 		return -1;
 	}
 
-	evsel = perf_evsel__new(&attr, 0);
+	evsel = perf_evsel__new(&attr);
 	if (evsel == NULL) {
 		pr_debug("perf_evsel__new\n");
 		goto out_free_evlist;
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index b939221efd8d..99dc58e5dcc3 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -117,6 +117,8 @@ void perf_evlist__delete(struct perf_evlist *evlist)
 void perf_evlist__add(struct perf_evlist *evlist, struct perf_evsel *entry)
 {
 	list_add_tail(&entry->node, &evlist->entries);
+	entry->idx = evlist->nr_entries;
+
 	if (!evlist->nr_entries++)
 		perf_evlist__set_id_pos(evlist);
 }
@@ -165,7 +167,7 @@ int perf_evlist__add_default(struct perf_evlist *evlist)
 
 	event_attr_init(&attr);
 
-	evsel = perf_evsel__new(&attr, 0);
+	evsel = perf_evsel__new(&attr);
 	if (evsel == NULL)
 		goto error;
 
@@ -190,7 +192,7 @@ static int perf_evlist__add_attrs(struct perf_evlist *evlist,
 	size_t i;
 
 	for (i = 0; i < nr_attrs; i++) {
-		evsel = perf_evsel__new(attrs + i, evlist->nr_entries + i);
+		evsel = perf_evsel__new_idx(attrs + i, evlist->nr_entries + i);
 		if (evsel == NULL)
 			goto out_delete_partial_list;
 		list_add_tail(&evsel->node, &head);
@@ -249,9 +251,8 @@ perf_evlist__find_tracepoint_by_name(struct perf_evlist *evlist,
 int perf_evlist__add_newtp(struct perf_evlist *evlist,
 			   const char *sys, const char *name, void *handler)
 {
-	struct perf_evsel *evsel;
+	struct perf_evsel *evsel = perf_evsel__newtp(sys, name);
 
-	evsel = perf_evsel__newtp(sys, name, evlist->nr_entries);
 	if (evsel == NULL)
 		return -1;
 
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 5280820ed389..f95653a639a6 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -168,7 +168,7 @@ void perf_evsel__init(struct perf_evsel *evsel,
 	perf_evsel__calc_id_pos(evsel);
 }
 
-struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx)
+struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx)
 {
 	struct perf_evsel *evsel = zalloc(sizeof(*evsel));
 
@@ -219,7 +219,7 @@ out:
 	return format;
 }
 
-struct perf_evsel *perf_evsel__newtp(const char *sys, const char *name, int idx)
+struct perf_evsel *perf_evsel__newtp_idx(const char *sys, const char *name, int idx)
 {
 	struct perf_evsel *evsel = zalloc(sizeof(*evsel));
 
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 64ec8e1a7a28..0178233abd64 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -96,8 +96,19 @@ struct thread_map;
 struct perf_evlist;
 struct perf_record_opts;
 
-struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr, int idx);
-struct perf_evsel *perf_evsel__newtp(const char *sys, const char *name, int idx);
+struct perf_evsel *perf_evsel__new_idx(struct perf_event_attr *attr, int idx);
+
+static inline struct perf_evsel *perf_evsel__new(struct perf_event_attr *attr)
+{
+	return perf_evsel__new_idx(attr, 0);
+}
+
+struct perf_evsel *perf_evsel__newtp_idx(const char *sys, const char *name, int idx);
+
+static inline struct perf_evsel *perf_evsel__newtp(const char *sys, const char *name)
+{
+	return perf_evsel__newtp_idx(sys, name, 0);
+}
 
 struct event_format *event_format__new(const char *sys, const char *name);
 
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 26d9520a0c1b..369c03648f88 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2797,7 +2797,7 @@ int perf_session__read_header(struct perf_session *session)
 			perf_event__attr_swap(&f_attr.attr);
 
 		tmp = lseek(fd, 0, SEEK_CUR);
-		evsel = perf_evsel__new(&f_attr.attr, i);
+		evsel = perf_evsel__new(&f_attr.attr);
 
 		if (evsel == NULL)
 			goto out_delete_evlist;
@@ -2916,7 +2916,7 @@ int perf_event__process_attr(struct perf_tool *tool __maybe_unused,
 			return -ENOMEM;
 	}
 
-	evsel = perf_evsel__new(&event->attr.attr, evlist->nr_entries);
+	evsel = perf_evsel__new(&event->attr.attr);
 	if (evsel == NULL)
 		return -ENOMEM;
 
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index c90e55cf7e82..6de6f89c2a61 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -277,7 +277,7 @@ static int __add_event(struct list_head *list, int *idx,
 
 	event_attr_init(attr);
 
-	evsel = perf_evsel__new(attr, (*idx)++);
+	evsel = perf_evsel__new_idx(attr, (*idx)++);
 	if (!evsel)
 		return -ENOMEM;
 
@@ -378,7 +378,7 @@ static int add_tracepoint(struct list_head *list, int *idx,
 {
 	struct perf_evsel *evsel;
 
-	evsel = perf_evsel__newtp(sys_name, evt_name, (*idx)++);
+	evsel = perf_evsel__newtp_idx(sys_name, evt_name, (*idx)++);
 	if (!evsel)
 		return -ENOMEM;
 
@@ -1097,7 +1097,7 @@ static bool is_event_supported(u8 type, unsigned config)
 		.threads = { 0 },
 	};
 
-	evsel = perf_evsel__new(&attr, 0);
+	evsel = perf_evsel__new(&attr);
 	if (evsel) {
 		ret = perf_evsel__open(evsel, NULL, &tmap.map) >= 0;
 		perf_evsel__delete(evsel);
-- 
cgit 


From 62605dc50c27bf0e4ff69b7b3166f226586aff02 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Mon, 11 Nov 2013 09:44:09 -0300
Subject: perf record: Synthesize non-exec MMAP records when --data used

When perf_event_attr.mmap_data is set the kernel will generate
PERF_RECORD_MMAP events when non-exec (data, SysV mem) mmaps are
created, so we need to synthesize from /proc/pid/maps for existing
threads, as we do for exec mmaps.

Right now just 'perf record' does it, but any other tool that uses
perf_event__synthesize_thread(s|map) can request it.

Reported-by: Don Zickus <dzickus@redhat.com>
Tested-by: Don Zickus <dzickus@redhat.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Bill Gray <bgray@redhat.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Don Zickus <dzickus@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Richard Fowles <rfowles@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-ihwzraikx23ian9txinogvv2@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-kvm.c        |  4 ++--
 tools/perf/builtin-record.c     |  6 ++---
 tools/perf/builtin-top.c        |  4 ++--
 tools/perf/builtin-trace.c      |  4 ++--
 tools/perf/tests/code-reading.c |  2 +-
 tools/perf/util/event.c         | 50 ++++++++++++++++++++++++-----------------
 tools/perf/util/event.h         |  4 ++--
 7 files changed, 42 insertions(+), 32 deletions(-)

diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index cd9f92078aba..f36e8209c300 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -1550,10 +1550,10 @@ static int kvm_events_live(struct perf_kvm_stat *kvm,
 		perf_event__synthesize_thread_map(&kvm->tool,
 						  kvm->evlist->threads,
 						  perf_event__process,
-						  &kvm->session->machines.host);
+						  &kvm->session->machines.host, false);
 	else
 		perf_event__synthesize_threads(&kvm->tool, perf_event__process,
-					       &kvm->session->machines.host);
+					       &kvm->session->machines.host, false);
 
 
 	err = kvm_live_open_events(kvm);
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 15280b5e5574..afb252cf6eca 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -482,11 +482,11 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 
 	if (perf_target__has_task(&opts->target))
 		err = perf_event__synthesize_thread_map(tool, evsel_list->threads,
-						  process_synthesized_event,
-						  machine);
+							process_synthesized_event,
+							machine, opts->sample_address);
 	else if (perf_target__has_cpu(&opts->target))
 		err = perf_event__synthesize_threads(tool, process_synthesized_event,
-					       machine);
+						     machine, opts->sample_address);
 	else /* command specified */
 		err = 0;
 
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 9acca8856ccb..cc96d753db96 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -953,10 +953,10 @@ static int __cmd_top(struct perf_top *top)
 	if (perf_target__has_task(&opts->target))
 		perf_event__synthesize_thread_map(&top->tool, top->evlist->threads,
 						  perf_event__process,
-						  &top->session->machines.host);
+						  &top->session->machines.host, false);
 	else
 		perf_event__synthesize_threads(&top->tool, perf_event__process,
-					       &top->session->machines.host);
+					       &top->session->machines.host, false);
 
 	ret = perf_top__start_counters(top);
 	if (ret)
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 68943cad70d4..277c2367e0cf 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1343,10 +1343,10 @@ static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist)
 	if (perf_target__has_task(&trace->opts.target)) {
 		err = perf_event__synthesize_thread_map(&trace->tool, evlist->threads,
 							trace__tool_process,
-							trace->host);
+							trace->host, false);
 	} else {
 		err = perf_event__synthesize_threads(&trace->tool, trace__tool_process,
-						     trace->host);
+						     trace->host, false);
 	}
 
 	if (err)
diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index 49ccc3b2995e..6d9dc198a200 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -441,7 +441,7 @@ static int do_test_code_reading(bool try_kcore)
 	}
 
 	ret = perf_event__synthesize_thread_map(NULL, threads,
-						perf_event__process, machine);
+						perf_event__process, machine, false);
 	if (ret < 0) {
 		pr_debug("perf_event__synthesize_thread_map failed\n");
 		goto out_err;
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index ec9ae1114ed4..6e3a846aed0e 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -170,7 +170,8 @@ static int perf_event__synthesize_mmap_events(struct perf_tool *tool,
 					      union perf_event *event,
 					      pid_t pid, pid_t tgid,
 					      perf_event__handler_t process,
-					      struct machine *machine)
+					      struct machine *machine,
+					      bool mmap_data)
 {
 	char filename[PATH_MAX];
 	FILE *fp;
@@ -188,10 +189,6 @@ static int perf_event__synthesize_mmap_events(struct perf_tool *tool,
 	}
 
 	event->header.type = PERF_RECORD_MMAP;
-	/*
-	 * Just like the kernel, see __perf_event_mmap in kernel/perf_event.c
-	 */
-	event->header.misc = PERF_RECORD_MISC_USER;
 
 	while (1) {
 		char bf[BUFSIZ];
@@ -215,9 +212,17 @@ static int perf_event__synthesize_mmap_events(struct perf_tool *tool,
 
 		if (n != 5)
 			continue;
+		/*
+		 * Just like the kernel, see __perf_event_mmap in kernel/perf_event.c
+		 */
+		event->header.misc = PERF_RECORD_MISC_USER;
 
-		if (prot[2] != 'x')
-			continue;
+		if (prot[2] != 'x') {
+			if (!mmap_data || prot[0] != 'r')
+				continue;
+
+			event->header.misc |= PERF_RECORD_MISC_MMAP_DATA;
+		}
 
 		if (!strcmp(execname, ""))
 			strcpy(execname, anonstr);
@@ -304,20 +309,21 @@ static int __event__synthesize_thread(union perf_event *comm_event,
 				      pid_t pid, int full,
 					  perf_event__handler_t process,
 				      struct perf_tool *tool,
-				      struct machine *machine)
+				      struct machine *machine, bool mmap_data)
 {
 	pid_t tgid = perf_event__synthesize_comm(tool, comm_event, pid, full,
 						 process, machine);
 	if (tgid == -1)
 		return -1;
 	return perf_event__synthesize_mmap_events(tool, mmap_event, pid, tgid,
-						  process, machine);
+						  process, machine, mmap_data);
 }
 
 int perf_event__synthesize_thread_map(struct perf_tool *tool,
 				      struct thread_map *threads,
 				      perf_event__handler_t process,
-				      struct machine *machine)
+				      struct machine *machine,
+				      bool mmap_data)
 {
 	union perf_event *comm_event, *mmap_event;
 	int err = -1, thread, j;
@@ -334,7 +340,8 @@ int perf_event__synthesize_thread_map(struct perf_tool *tool,
 	for (thread = 0; thread < threads->nr; ++thread) {
 		if (__event__synthesize_thread(comm_event, mmap_event,
 					       threads->map[thread], 0,
-					       process, tool, machine)) {
+					       process, tool, machine,
+					       mmap_data)) {
 			err = -1;
 			break;
 		}
@@ -356,10 +363,10 @@ int perf_event__synthesize_thread_map(struct perf_tool *tool,
 
 			/* if not, generate events for it */
 			if (need_leader &&
-			    __event__synthesize_thread(comm_event,
-						      mmap_event,
-						      comm_event->comm.pid, 0,
-						      process, tool, machine)) {
+			    __event__synthesize_thread(comm_event, mmap_event,
+						       comm_event->comm.pid, 0,
+						       process, tool, machine,
+						       mmap_data)) {
 				err = -1;
 				break;
 			}
@@ -374,7 +381,7 @@ out:
 
 int perf_event__synthesize_threads(struct perf_tool *tool,
 				   perf_event__handler_t process,
-				   struct machine *machine)
+				   struct machine *machine, bool mmap_data)
 {
 	DIR *proc;
 	struct dirent dirent, *next;
@@ -404,7 +411,7 @@ int perf_event__synthesize_threads(struct perf_tool *tool,
  		 * one thread couldn't be synthesized.
  		 */
 		__event__synthesize_thread(comm_event, mmap_event, pid, 1,
-					   process, tool, machine);
+					   process, tool, machine, mmap_data);
 	}
 
 	err = 0;
@@ -528,19 +535,22 @@ int perf_event__process_lost(struct perf_tool *tool __maybe_unused,
 
 size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp)
 {
-	return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %s\n",
+	return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 "]: %c %s\n",
 		       event->mmap.pid, event->mmap.tid, event->mmap.start,
-		       event->mmap.len, event->mmap.pgoff, event->mmap.filename);
+		       event->mmap.len, event->mmap.pgoff,
+		       (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x',
+		       event->mmap.filename);
 }
 
 size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp)
 {
 	return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64
-			   " %02x:%02x %"PRIu64" %"PRIu64"]: %s\n",
+			   " %02x:%02x %"PRIu64" %"PRIu64"]: %c %s\n",
 		       event->mmap2.pid, event->mmap2.tid, event->mmap2.start,
 		       event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj,
 		       event->mmap2.min, event->mmap2.ino,
 		       event->mmap2.ino_generation,
+		       (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x',
 		       event->mmap2.filename);
 }
 
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h
index f8d70f3003ab..30fec9901e44 100644
--- a/tools/perf/util/event.h
+++ b/tools/perf/util/event.h
@@ -208,10 +208,10 @@ typedef int (*perf_event__handler_t)(struct perf_tool *tool,
 int perf_event__synthesize_thread_map(struct perf_tool *tool,
 				      struct thread_map *threads,
 				      perf_event__handler_t process,
-				      struct machine *machine);
+				      struct machine *machine, bool mmap_data);
 int perf_event__synthesize_threads(struct perf_tool *tool,
 				   perf_event__handler_t process,
-				   struct machine *machine);
+				   struct machine *machine, bool mmap_data);
 int perf_event__synthesize_kernel_mmap(struct perf_tool *tool,
 				       perf_event__handler_t process,
 				       struct machine *machine,
-- 
cgit 


From 58d925dcede9e8765876707a33a3406011fe1c11 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Mon, 11 Nov 2013 11:28:02 -0300
Subject: perf machine: Introduce synthesize_threads method out of open coded
 equivalent

Further simplifications to be done on following patch, as most tools
don't use the callback, using instead just the canned
machine__process_event one.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-r1m0vuuj3cat4bampno9yc8d@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-kvm.c    | 15 +++------------
 tools/perf/builtin-record.c | 12 ++----------
 tools/perf/builtin-top.c    | 11 +++--------
 tools/perf/builtin-trace.c  | 11 ++---------
 tools/perf/util/machine.c   | 12 ++++++++++++
 tools/perf/util/machine.h   |  4 ++++
 6 files changed, 26 insertions(+), 39 deletions(-)

diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index f36e8209c300..f5d2c4bccbec 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -1544,18 +1544,9 @@ static int kvm_events_live(struct perf_kvm_stat *kvm,
 	}
 	kvm->session->evlist = kvm->evlist;
 	perf_session__set_id_hdr_size(kvm->session);
-
-
-	if (perf_target__has_task(&kvm->opts.target))
-		perf_event__synthesize_thread_map(&kvm->tool,
-						  kvm->evlist->threads,
-						  perf_event__process,
-						  &kvm->session->machines.host, false);
-	else
-		perf_event__synthesize_threads(&kvm->tool, perf_event__process,
-					       &kvm->session->machines.host, false);
-
-
+	machine__synthesize_threads(&kvm->session->machines.host, &kvm->tool,
+				    &kvm->opts.target, kvm->evlist->threads,
+				    perf_event__process, false);
 	err = kvm_live_open_events(kvm);
 	if (err)
 		goto out;
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index afb252cf6eca..41d1f37f5348 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -480,16 +480,8 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 					 perf_event__synthesize_guest_os, tool);
 	}
 
-	if (perf_target__has_task(&opts->target))
-		err = perf_event__synthesize_thread_map(tool, evsel_list->threads,
-							process_synthesized_event,
-							machine, opts->sample_address);
-	else if (perf_target__has_cpu(&opts->target))
-		err = perf_event__synthesize_threads(tool, process_synthesized_event,
-						     machine, opts->sample_address);
-	else /* command specified */
-		err = 0;
-
+	err = machine__synthesize_threads(machine, tool, &opts->target, evsel_list->threads,
+					  process_synthesized_event, opts->sample_address);
 	if (err != 0)
 		goto out_delete_session;
 
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index cc96d753db96..c3a936ef7688 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -950,14 +950,9 @@ static int __cmd_top(struct perf_top *top)
 	if (ret)
 		goto out_delete;
 
-	if (perf_target__has_task(&opts->target))
-		perf_event__synthesize_thread_map(&top->tool, top->evlist->threads,
-						  perf_event__process,
-						  &top->session->machines.host, false);
-	else
-		perf_event__synthesize_threads(&top->tool, perf_event__process,
-					       &top->session->machines.host, false);
-
+	machine__synthesize_threads(&top->session->machines.host, &top->tool,
+				    &opts->target, top->evlist->threads,
+				    perf_event__process, false);
 	ret = perf_top__start_counters(top);
 	if (ret)
 		goto out_delete;
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 277c2367e0cf..7690324824db 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1340,15 +1340,8 @@ static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist)
 	if (trace->host == NULL)
 		return -ENOMEM;
 
-	if (perf_target__has_task(&trace->opts.target)) {
-		err = perf_event__synthesize_thread_map(&trace->tool, evlist->threads,
-							trace__tool_process,
-							trace->host, false);
-	} else {
-		err = perf_event__synthesize_threads(&trace->tool, trace__tool_process,
-						     trace->host, false);
-	}
-
+	err = machine__synthesize_threads(trace->host, &trace->tool, &trace->opts.target,
+					  evlist->threads, trace__tool_process, false);
 	if (err)
 		symbol__exit();
 
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index ce034c183a7e..9f2c61d5a9ed 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1394,3 +1394,15 @@ int machine__for_each_thread(struct machine *machine,
 	}
 	return rc;
 }
+
+int machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
+				struct perf_target *target, struct thread_map *threads,
+				perf_event__handler_t process, bool data_mmap)
+{
+	if (perf_target__has_task(target))
+		return perf_event__synthesize_thread_map(tool, threads, process, machine, data_mmap);
+	else if (perf_target__has_cpu(target))
+		return perf_event__synthesize_threads(tool, process, machine, data_mmap);
+	/* command specified */
+	return 0;
+}
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h
index 2389ba81fafe..14a89d2aecaf 100644
--- a/tools/perf/util/machine.h
+++ b/tools/perf/util/machine.h
@@ -4,6 +4,7 @@
 #include <sys/types.h>
 #include <linux/rbtree.h>
 #include "map.h"
+#include "event.h"
 
 struct addr_location;
 struct branch_stack;
@@ -178,4 +179,7 @@ int machine__for_each_thread(struct machine *machine,
 			     int (*fn)(struct thread *thread, void *p),
 			     void *priv);
 
+int machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
+				struct perf_target *target, struct thread_map *threads,
+				perf_event__handler_t process, bool data_mmap);
 #endif /* __PERF_MACHINE_H */
-- 
cgit 


From a33fbd56ec83b5421090b4d8f2032f635e6a9488 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Mon, 11 Nov 2013 11:36:12 -0300
Subject: perf machine: Simplify synthesize_threads method

Several tools (top, kvm) don't need to be called back to process each of
the syntheiszed records, instead relying on the machine__process_event
function to change the per machine data structures that represent
threads and mmaps, so provide a way to ask for this common idiom.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-pusqibp8n3c4ynegd1frn4zd@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-kvm.c    |  5 ++---
 tools/perf/builtin-record.c |  4 ++--
 tools/perf/builtin-top.c    |  5 ++---
 tools/perf/builtin-trace.c  |  4 ++--
 tools/perf/util/machine.c   |  6 +++---
 tools/perf/util/machine.h   | 14 +++++++++++---
 6 files changed, 22 insertions(+), 16 deletions(-)

diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index f5d2c4bccbec..346bb5909e3d 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -1544,9 +1544,8 @@ static int kvm_events_live(struct perf_kvm_stat *kvm,
 	}
 	kvm->session->evlist = kvm->evlist;
 	perf_session__set_id_hdr_size(kvm->session);
-	machine__synthesize_threads(&kvm->session->machines.host, &kvm->tool,
-				    &kvm->opts.target, kvm->evlist->threads,
-				    perf_event__process, false);
+	machine__synthesize_threads(&kvm->session->machines.host, &kvm->opts.target,
+				    kvm->evlist->threads, false);
 	err = kvm_live_open_events(kvm);
 	if (err)
 		goto out;
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 41d1f37f5348..fc68b26d58f9 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -480,8 +480,8 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 					 perf_event__synthesize_guest_os, tool);
 	}
 
-	err = machine__synthesize_threads(machine, tool, &opts->target, evsel_list->threads,
-					  process_synthesized_event, opts->sample_address);
+	err = __machine__synthesize_threads(machine, tool, &opts->target, evsel_list->threads,
+					    process_synthesized_event, opts->sample_address);
 	if (err != 0)
 		goto out_delete_session;
 
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index c3a936ef7688..8c520d9fecfc 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -950,9 +950,8 @@ static int __cmd_top(struct perf_top *top)
 	if (ret)
 		goto out_delete;
 
-	machine__synthesize_threads(&top->session->machines.host, &top->tool,
-				    &opts->target, top->evlist->threads,
-				    perf_event__process, false);
+	machine__synthesize_threads(&top->session->machines.host, &opts->target,
+				    top->evlist->threads, false);
 	ret = perf_top__start_counters(top);
 	if (ret)
 		goto out_delete;
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 7690324824db..c3008b1c369c 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1340,8 +1340,8 @@ static int trace__symbols_init(struct trace *trace, struct perf_evlist *evlist)
 	if (trace->host == NULL)
 		return -ENOMEM;
 
-	err = machine__synthesize_threads(trace->host, &trace->tool, &trace->opts.target,
-					  evlist->threads, trace__tool_process, false);
+	err = __machine__synthesize_threads(trace->host, &trace->tool, &trace->opts.target,
+					    evlist->threads, trace__tool_process, false);
 	if (err)
 		symbol__exit();
 
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 9f2c61d5a9ed..680700b6d779 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1395,9 +1395,9 @@ int machine__for_each_thread(struct machine *machine,
 	return rc;
 }
 
-int machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
-				struct perf_target *target, struct thread_map *threads,
-				perf_event__handler_t process, bool data_mmap)
+int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
+				  struct perf_target *target, struct thread_map *threads,
+				  perf_event__handler_t process, bool data_mmap)
 {
 	if (perf_target__has_task(target))
 		return perf_event__synthesize_thread_map(tool, threads, process, machine, data_mmap);
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h
index 14a89d2aecaf..fedd1dfaf715 100644
--- a/tools/perf/util/machine.h
+++ b/tools/perf/util/machine.h
@@ -179,7 +179,15 @@ int machine__for_each_thread(struct machine *machine,
 			     int (*fn)(struct thread *thread, void *p),
 			     void *priv);
 
-int machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
-				struct perf_target *target, struct thread_map *threads,
-				perf_event__handler_t process, bool data_mmap);
+int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
+				  struct perf_target *target, struct thread_map *threads,
+				  perf_event__handler_t process, bool data_mmap);
+static inline
+int machine__synthesize_threads(struct machine *machine, struct perf_target *target,
+				struct thread_map *threads, bool data_mmap)
+{
+	return __machine__synthesize_threads(machine, NULL, target, threads,
+					     perf_event__process, data_mmap);
+}
+
 #endif /* __PERF_MACHINE_H */
-- 
cgit 


From 7524f63b997cc02a80aa073558728ae3ee242cf8 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Fri, 8 Nov 2013 17:53:42 +0900
Subject: perf tools: Prevent condition that all sort keys are elided

If given sort keys are all elided there'll be no output except for the
overhead column - actually the TUI shows a noisy output.  In this case
it'd be better to show up the sort keys rather than elide.

Before:

  $ perf report -s comm -c perf
  (...)
  # Overhead
  # ........
  #
     100.00%

After:

  $ perf report -s comm -c perf
  (...)
  # Overhead  Command
  # ........  .......
  #
     100.00%     perf

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1383900822-14609-1-git-send-email-namhyung@kernel.org
[ Us curly braces around multi-line statements, as requested by Ingo Molnar ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/sort.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 3c1b75c8b9a6..8b0bb1f4494a 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -1137,6 +1137,8 @@ static void sort_entry__setup_elide(struct sort_entry *se,
 
 void sort__setup_elide(FILE *output)
 {
+	struct sort_entry *se;
+
 	sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list,
 				"dso", output);
 	sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list,
@@ -1172,4 +1174,15 @@ void sort__setup_elide(FILE *output)
 					"snoop", output);
 	}
 
+	/*
+	 * It makes no sense to elide all of sort entries.
+	 * Just revert them to show up again.
+	 */
+	list_for_each_entry(se, &hist_entry__sort_list, list) {
+		if (!se->elide)
+			return;
+	}
+
+	list_for_each_entry(se, &hist_entry__sort_list, list)
+		se->elide = false;
 }
-- 
cgit 


From 410f17860318f36b999a90138f50350e3dc49933 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 8 Nov 2013 12:27:50 +0200
Subject: perf record: Use correct return type for write()

write() returns a 'ssize_t' not an 'int'.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1383906470-21002-1-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-record.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index fc68b26d58f9..8f5af32d6451 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -81,7 +81,7 @@ static int write_output(struct perf_record *rec, void *buf, size_t size)
 	struct perf_data_file *file = &rec->file;
 
 	while (size) {
-		int ret = write(file->fd, buf, size);
+		ssize_t ret = write(file->fd, buf, size);
 
 		if (ret < 0) {
 			pr_err("failed to write perf data, error: %m\n");
-- 
cgit 


From a9986fad6645b98d5bb3c2f83c22efb0761ca272 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Thu, 7 Nov 2013 21:23:24 -0700
Subject: perf record: Move existing write_output into helper function

Code move only; no logic changes. In preparation for the mmap based
output option in the next patch.

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1383884605-30968-2-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-record.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 8f5af32d6451..880227eae20f 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -76,7 +76,7 @@ struct perf_record {
 	long			samples;
 };
 
-static int write_output(struct perf_record *rec, void *buf, size_t size)
+static int do_write_output(struct perf_record *rec, void *buf, size_t size)
 {
 	struct perf_data_file *file = &rec->file;
 
@@ -97,6 +97,11 @@ static int write_output(struct perf_record *rec, void *buf, size_t size)
 	return 0;
 }
 
+static int write_output(struct perf_record *rec, void *buf, size_t size)
+{
+	return do_write_output(rec, buf, size);
+}
+
 static int process_synthesized_event(struct perf_tool *tool,
 				     union perf_event *event,
 				     struct perf_sample *sample __maybe_unused,
-- 
cgit 


From 45f1b02728438dc3c74a08a90f6ad8f60cbb1c6d Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 11 Nov 2013 14:15:12 +0800
Subject: ethernet/arc/arc_emac: add missing platform_set_drvdata() in
 arc_emac_probe()

Add missing platform_set_drvdata() in arc_emac_probe(), otherwise
calling platform_get_drvdata() in arc_emac_remove() may returns NULL.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/arc/emac_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/arc/emac_main.c b/drivers/net/ethernet/arc/emac_main.c
index d818ded6c05c..473c37786700 100644
--- a/drivers/net/ethernet/arc/emac_main.c
+++ b/drivers/net/ethernet/arc/emac_main.c
@@ -671,6 +671,7 @@ static int arc_emac_probe(struct platform_device *pdev)
 	if (!ndev)
 		return -ENOMEM;
 
+	platform_set_drvdata(pdev, ndev);
 	SET_NETDEV_DEV(ndev, &pdev->dev);
 
 	ndev->netdev_ops = &arc_emac_netdev_ops;
-- 
cgit 


From 06a2feb9e3bd0d2d555ccb19607ff5583cfa03e8 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 11 Nov 2013 14:16:16 +0800
Subject: macmace: add missing platform_set_drvdata() in mace_probe()

Add missing platform_set_drvdata() in mace_probe(), otherwise
calling platform_get_drvdata() in mac_mace_device_remove() may
returns NULL.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/apple/macmace.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/apple/macmace.c b/drivers/net/ethernet/apple/macmace.c
index 4ce8ceb62205..58a200df4c35 100644
--- a/drivers/net/ethernet/apple/macmace.c
+++ b/drivers/net/ethernet/apple/macmace.c
@@ -211,6 +211,7 @@ static int mace_probe(struct platform_device *pdev)
 	mp = netdev_priv(dev);
 
 	mp->device = &pdev->dev;
+	platform_set_drvdata(pdev, dev);
 	SET_NETDEV_DEV(dev, &pdev->dev);
 
 	dev->base_addr = (u32)MACE_BASE;
-- 
cgit 


From 8724be0e4aa357ae9388dd6879aa6733900c6f21 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 11 Nov 2013 14:17:17 +0800
Subject: xtsonic: add missing platform_set_drvdata() in xtsonic_probe()

Add missing platform_set_drvdata() in xtsonic_probe(), otherwise
calling platform_get_drvdata() in xtsonic_device_remove() may
returns NULL.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/natsemi/xtsonic.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/natsemi/xtsonic.c b/drivers/net/ethernet/natsemi/xtsonic.c
index 4da172ac5599..7007d212f3e4 100644
--- a/drivers/net/ethernet/natsemi/xtsonic.c
+++ b/drivers/net/ethernet/natsemi/xtsonic.c
@@ -264,6 +264,7 @@ int xtsonic_probe(struct platform_device *pdev)
 
 	lp = netdev_priv(dev);
 	lp->device = &pdev->dev;
+	platform_set_drvdata(pdev, dev);
 	SET_NETDEV_DEV(dev, &pdev->dev);
 	netdev_boot_setup_check(dev);
 
-- 
cgit 


From 129596674c00352cbbb1efaf36db50726fd374ef Mon Sep 17 00:00:00 2001
From: Jonas Jensen <jonas.jensen@gmail.com>
Date: Mon, 11 Nov 2013 15:46:06 +0100
Subject: PHY: Add RTL8201CP phy_driver to realtek

Add RTL8201CP phy_driver.

Signed-off-by: Jonas Jensen <jonas.jensen@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/phy/realtek.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
index 138de837977f..fa1d69a38ccf 100644
--- a/drivers/net/phy/realtek.c
+++ b/drivers/net/phy/realtek.c
@@ -64,6 +64,18 @@ static int rtl8211e_config_intr(struct phy_device *phydev)
 	return err;
 }
 
+/* RTL8201CP */
+static struct phy_driver rtl8201cp_driver = {
+	.phy_id         = 0x00008201,
+	.name           = "RTL8201CP Ethernet",
+	.phy_id_mask    = 0x0000ffff,
+	.features       = PHY_BASIC_FEATURES,
+	.flags          = PHY_HAS_INTERRUPT,
+	.config_aneg    = &genphy_config_aneg,
+	.read_status    = &genphy_read_status,
+	.driver         = { .owner = THIS_MODULE,},
+};
+
 /* RTL8211B */
 static struct phy_driver rtl8211b_driver = {
 	.phy_id		= 0x001cc912,
@@ -98,6 +110,9 @@ static int __init realtek_init(void)
 {
 	int ret;
 
+	ret = phy_driver_register(&rtl8201cp_driver);
+	if (ret < 0)
+		return -ENODEV;
 	ret = phy_driver_register(&rtl8211b_driver);
 	if (ret < 0)
 		return -ENODEV;
-- 
cgit 


From 80bd33acdaa21fafa8ff4391ccdf879d227111bb Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Thu, 7 Nov 2013 17:46:37 +0800
Subject: mtd: gpmi: only scan two chips for imx6

We cannot scan two chips for imx23 and imx28:
  imx23: the Ready-Busy1 line is not connected for some board.
  imx28: we do not set the pinctrl for Ready-Busy1

So we only scan two chips for imx6.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 4b6d802018fb..3d642b5c3a79 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -1674,7 +1674,7 @@ static int gpmi_nfc_init(struct gpmi_nand_data *this)
 	if (ret)
 		goto err_out;
 
-	ret = nand_scan_ident(mtd, 2, NULL);
+	ret = nand_scan_ident(mtd, GPMI_IS_MX6Q(this) ? 2 : 1, NULL);
 	if (ret)
 		goto err_out;
 
-- 
cgit 


From b99959323732ed0c81da2488252f64c02ad37fbe Mon Sep 17 00:00:00 2001
From: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Date: Mon, 28 Oct 2013 18:08:15 +0200
Subject: mtd: mtdchar: return expected errors on mmap() call

According both to POSIX.1-2008 and Linux Programmer's Manual mmap()
syscall shouldn't return undocumented ENOSYS, this change replaces
the errno with more appropriate ENODEV and EACCESS.

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Cc: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/mtdchar.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index 9aa0c5e49c1d..2147e733533b 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -1100,7 +1100,7 @@ static unsigned long mtdchar_get_unmapped_area(struct file *file,
 		return (unsigned long) -EINVAL;
 
 	ret = mtd_get_unmapped_area(mtd, len, offset, flags);
-	return ret == -EOPNOTSUPP ? -ENOSYS : ret;
+	return ret == -EOPNOTSUPP ? -ENODEV : ret;
 }
 #endif
 
@@ -1125,9 +1125,9 @@ static int mtdchar_mmap(struct file *file, struct vm_area_struct *vma)
 #endif
 		return vm_iomap_memory(vma, map->phys, map->size);
 	}
-	return -ENOSYS;
+	return -ENODEV;
 #else
-	return vma->vm_flags & VM_SHARED ? 0 : -ENOSYS;
+	return vma->vm_flags & VM_SHARED ? 0 : -EACCES;
 #endif
 }
 
-- 
cgit 


From d0b849e9bced36cf279881294c07c43b0b9dce86 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Mon, 11 Nov 2013 16:28:42 -0300
Subject: perf tests: Check return of perf_evlist__open sw clock event period
 test

We were not checking if we successfully opened the counters, i.e. if
sys_perf_event_open worked, when it doesn't in this test, we were
continuing anyway and then segfaulting when trying to access the file
descriptor array, that at that point had been freed in perf_evlist__open
error path:

[root@ssdandy ~]# perf test -v 19
19: Test software clock events have valid period values    :
--- start ---
Segmentation fault (core dumped)
[root@ssdandy ~]#

Do the check and bail out instead.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-6qy8ljkn0e9hm7bh7keo5z68@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/tests/sw-clock.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/tools/perf/tests/sw-clock.c b/tools/perf/tests/sw-clock.c
index 73c5c37cb27b..ed777728dfe7 100644
--- a/tools/perf/tests/sw-clock.c
+++ b/tools/perf/tests/sw-clock.c
@@ -57,7 +57,11 @@ static int __test__sw_clock_freq(enum perf_sw_ids clock_id)
 		goto out_delete_maps;
 	}
 
-	perf_evlist__open(evlist);
+	if (perf_evlist__open(evlist)) {
+		err = -errno;
+		pr_debug("Couldn't open evlist: %s\n", strerror(errno));
+		goto out_delete_maps;
+	}
 
 	err = perf_evlist__mmap(evlist, 128, true);
 	if (err < 0) {
-- 
cgit 


From 51c37a70aaa3f95773af560e6db3073520513912 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 11 Nov 2013 12:20:32 +0100
Subject: random32: fix off-by-one in seeding requirement

For properly initialising the Tausworthe generator [1], we have
a strict seeding requirement, that is, s1 > 1, s2 > 7, s3 > 15.

Commit 697f8d0348 ("random32: seeding improvement") introduced
a __seed() function that imposes boundary checks proposed by the
errata paper [2] to properly ensure above conditions.

However, we're off by one, as the function is implemented as:
"return (x < m) ? x + m : x;", and called with __seed(X, 1),
__seed(X, 7), __seed(X, 15). Thus, an unwanted seed of 1, 7, 15
would be possible, whereas the lower boundary should actually
be of at least 2, 8, 16, just as GSL does. Fix this, as otherwise
an initialization with an unwanted seed could have the effect
that Tausworthe's PRNG properties cannot not be ensured.

Note that this PRNG is *not* used for cryptography in the kernel.

 [1] http://www.iro.umontreal.ca/~lecuyer/myftp/papers/tausme.ps
 [2] http://www.iro.umontreal.ca/~lecuyer/myftp/papers/tausme2.ps

Joint work with Hannes Frederic Sowa.

Fixes: 697f8d0348a6 ("random32: seeding improvement")
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/random.h |  6 +++---
 lib/random32.c         | 14 +++++++-------
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/include/linux/random.h b/include/linux/random.h
index 6312dd9ba449..bf9085e89fb5 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -50,9 +50,9 @@ static inline void prandom_seed_state(struct rnd_state *state, u64 seed)
 {
 	u32 i = (seed >> 32) ^ (seed << 10) ^ seed;
 
-	state->s1 = __seed(i, 1);
-	state->s2 = __seed(i, 7);
-	state->s3 = __seed(i, 15);
+	state->s1 = __seed(i, 2);
+	state->s2 = __seed(i, 8);
+	state->s3 = __seed(i, 16);
 }
 
 #ifdef CONFIG_ARCH_RANDOM
diff --git a/lib/random32.c b/lib/random32.c
index 52280d5526be..01e8890d1089 100644
--- a/lib/random32.c
+++ b/lib/random32.c
@@ -141,7 +141,7 @@ void prandom_seed(u32 entropy)
 	 */
 	for_each_possible_cpu (i) {
 		struct rnd_state *state = &per_cpu(net_rand_state, i);
-		state->s1 = __seed(state->s1 ^ entropy, 1);
+		state->s1 = __seed(state->s1 ^ entropy, 2);
 	}
 }
 EXPORT_SYMBOL(prandom_seed);
@@ -158,9 +158,9 @@ static int __init prandom_init(void)
 		struct rnd_state *state = &per_cpu(net_rand_state,i);
 
 #define LCG(x)	((x) * 69069)	/* super-duper LCG */
-		state->s1 = __seed(LCG(i + jiffies), 1);
-		state->s2 = __seed(LCG(state->s1), 7);
-		state->s3 = __seed(LCG(state->s2), 15);
+		state->s1 = __seed(LCG(i + jiffies), 2);
+		state->s2 = __seed(LCG(state->s1), 8);
+		state->s3 = __seed(LCG(state->s2), 16);
 
 		/* "warm it up" */
 		prandom_u32_state(state);
@@ -187,9 +187,9 @@ static int __init prandom_reseed(void)
 		u32 seeds[3];
 
 		get_random_bytes(&seeds, sizeof(seeds));
-		state->s1 = __seed(seeds[0], 1);
-		state->s2 = __seed(seeds[1], 7);
-		state->s3 = __seed(seeds[2], 15);
+		state->s1 = __seed(seeds[0], 2);
+		state->s2 = __seed(seeds[1], 8);
+		state->s3 = __seed(seeds[2], 16);
 
 		/* mix it in */
 		prandom_u32_state(state);
-- 
cgit 


From 6d31920246a9fc80be4f16acd27c0bbe8d7b8494 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Mon, 11 Nov 2013 12:20:33 +0100
Subject: random32: add periodic reseeding

The current Tausworthe PRNG is never reseeded with truly random data after
the first attempt in late_initcall. As this PRNG is used for some critical
random data as e.g. UDP port randomization we should try better and reseed
the PRNG once in a while with truly random data from get_random_bytes().

When we reseed with prandom_seed we now make also sure to throw the first
output away. This suffices the reseeding procedure.

The delay calculation is based on a proposal from Eric Dumazet.

Joint work with Daniel Borkmann.

Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 lib/random32.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/lib/random32.c b/lib/random32.c
index 01e8890d1089..12215df701e8 100644
--- a/lib/random32.c
+++ b/lib/random32.c
@@ -142,6 +142,7 @@ void prandom_seed(u32 entropy)
 	for_each_possible_cpu (i) {
 		struct rnd_state *state = &per_cpu(net_rand_state, i);
 		state->s1 = __seed(state->s1 ^ entropy, 2);
+		prandom_u32_state(state);
 	}
 }
 EXPORT_SYMBOL(prandom_seed);
@@ -174,6 +175,27 @@ static int __init prandom_init(void)
 }
 core_initcall(prandom_init);
 
+static void __prandom_timer(unsigned long dontcare);
+static DEFINE_TIMER(seed_timer, __prandom_timer, 0, 0);
+
+static void __prandom_timer(unsigned long dontcare)
+{
+	u32 entropy;
+
+	get_random_bytes(&entropy, sizeof(entropy));
+	prandom_seed(entropy);
+	/* reseed every ~60 seconds, in [40 .. 80) interval with slack */
+	seed_timer.expires = jiffies + (40 * HZ + (prandom_u32() % (40 * HZ)));
+	add_timer(&seed_timer);
+}
+
+static void prandom_start_seed_timer(void)
+{
+	set_timer_slack(&seed_timer, HZ);
+	seed_timer.expires = jiffies + 40 * HZ;
+	add_timer(&seed_timer);
+}
+
 /*
  *	Generate better values after random number generator
  *	is fully initialized.
@@ -194,6 +216,7 @@ static int __init prandom_reseed(void)
 		/* mix it in */
 		prandom_u32_state(state);
 	}
+	prandom_start_seed_timer();
 	return 0;
 }
 late_initcall(prandom_reseed);
-- 
cgit 


From 4af712e8df998475736f3e2727701bd31e3751a9 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Mon, 11 Nov 2013 12:20:34 +0100
Subject: random32: add prandom_reseed_late() and call when nonblocking pool
 becomes initialized

The Tausworthe PRNG is initialized at late_initcall time. At that time the
entropy pool serving get_random_bytes is not filled sufficiently. This
patch adds an additional reseeding step as soon as the nonblocking pool
gets marked as initialized.

On some machines it might be possible that late_initcall gets called after
the pool has been initialized. In this situation we won't reseed again.

(A call to prandom_seed_late blocks later invocations of early reseed
attempts.)

Joint work with Daniel Borkmann.

Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/char/random.c  |  5 ++++-
 include/linux/random.h |  1 +
 lib/random32.c         | 23 ++++++++++++++++++++++-
 3 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 7a744d391756..4fe5609eeb72 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -603,8 +603,11 @@ retry:
 
 	if (!r->initialized && nbits > 0) {
 		r->entropy_total += nbits;
-		if (r->entropy_total > 128)
+		if (r->entropy_total > 128) {
 			r->initialized = 1;
+			if (r == &nonblocking_pool)
+				prandom_reseed_late();
+		}
 	}
 
 	trace_credit_entropy_bits(r->name, nbits, entropy_count,
diff --git a/include/linux/random.h b/include/linux/random.h
index bf9085e89fb5..5117ae348fe8 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -29,6 +29,7 @@ unsigned long randomize_range(unsigned long start, unsigned long end, unsigned l
 u32 prandom_u32(void);
 void prandom_bytes(void *buf, int nbytes);
 void prandom_seed(u32 seed);
+void prandom_reseed_late(void);
 
 u32 prandom_u32_state(struct rnd_state *);
 void prandom_bytes_state(struct rnd_state *state, void *buf, int nbytes);
diff --git a/lib/random32.c b/lib/random32.c
index 12215df701e8..9f2f2fb03dfe 100644
--- a/lib/random32.c
+++ b/lib/random32.c
@@ -200,9 +200,18 @@ static void prandom_start_seed_timer(void)
  *	Generate better values after random number generator
  *	is fully initialized.
  */
-static int __init prandom_reseed(void)
+static void __prandom_reseed(bool late)
 {
 	int i;
+	unsigned long flags;
+	static bool latch = false;
+	static DEFINE_SPINLOCK(lock);
+
+	/* only allow initial seeding (late == false) once */
+	spin_lock_irqsave(&lock, flags);
+	if (latch && !late)
+		goto out;
+	latch = true;
 
 	for_each_possible_cpu(i) {
 		struct rnd_state *state = &per_cpu(net_rand_state,i);
@@ -216,6 +225,18 @@ static int __init prandom_reseed(void)
 		/* mix it in */
 		prandom_u32_state(state);
 	}
+out:
+	spin_unlock_irqrestore(&lock, flags);
+}
+
+void prandom_reseed_late(void)
+{
+	__prandom_reseed(true);
+}
+
+static int __init prandom_reseed(void)
+{
+	__prandom_reseed(false);
 	prandom_start_seed_timer();
 	return 0;
 }
-- 
cgit 


From 38e9efcdb33270b4da72143d8e7ca4dcf7f0989b Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 11 Nov 2013 12:20:35 +0100
Subject: random32: move rnd_state to linux/random.h

struct rnd_state got mistakenly pulled into uapi header. It is not
used anywhere and does also not belong there!

Commit 5960164fde ("lib/random32: export pseudo-random number
generator for modules"), the last commit on rnd_state before it
got moved to uapi, says:

  This patch moves the definition of struct rnd_state and the inline
  __seed() function to linux/random.h.  It renames the static __random32()
  function to prandom32() and exports it for use in modules.

Hence, the structure was moved from lib/random32.c to linux/random.h
so that it can be used within modules (FCoE-related code in this
case), but not from user space. However, it seems to have been
mistakenly moved to uapi header through the uapi script. Since no-one
should make use of it from the linux headers, move the structure back
to the kernel for internal use, so that it can be modified on demand.

Joint work with Hannes Frederic Sowa.

Cc: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/random.h      | 4 ++++
 include/uapi/linux/random.h | 7 -------
 2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/include/linux/random.h b/include/linux/random.h
index 5117ae348fe8..8ef0b70bd1f9 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -31,6 +31,10 @@ void prandom_bytes(void *buf, int nbytes);
 void prandom_seed(u32 seed);
 void prandom_reseed_late(void);
 
+struct rnd_state {
+	__u32 s1, s2, s3;
+};
+
 u32 prandom_u32_state(struct rnd_state *);
 void prandom_bytes_state(struct rnd_state *state, void *buf, int nbytes);
 
diff --git a/include/uapi/linux/random.h b/include/uapi/linux/random.h
index 7471b5b3b8ba..fff3528a078f 100644
--- a/include/uapi/linux/random.h
+++ b/include/uapi/linux/random.h
@@ -40,11 +40,4 @@ struct rand_pool_info {
 	__u32	buf[0];
 };
 
-struct rnd_state {
-	__u32 s1, s2, s3;
-};
-
-/* Exported functions */
-
-
 #endif /* _UAPI_LINUX_RANDOM_H */
-- 
cgit 


From a98814cef87946d2708812ad9f8b1e03b8366b6f Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 11 Nov 2013 12:20:36 +0100
Subject: random32: upgrade taus88 generator to taus113 from errata paper

Since we use prandom*() functions quite often in networking code
i.e. in UDP port selection, netfilter code, etc, upgrade the PRNG
from Pierre L'Ecuyer's original paper "Maximally Equidistributed
Combined Tausworthe Generators", Mathematics of Computation, 65,
213 (1996), 203--213 to the version published in his errata paper [1].

The Tausworthe generator is a maximally-equidistributed generator,
that is fast and has good statistical properties [1].

The version presented there upgrades the 3 state LFSR to a 4 state
LFSR with increased periodicity from about 2^88 to 2^113. The
algorithm is presented in [1] by the very same author who also
designed the original algorithm in [2].

Also, by increasing the state, we make it a bit harder for attackers
to "guess" the PRNGs internal state. See also discussion in [3].

Now, as we use this sort of weak initialization discussed in [3]
only between core_initcall() until late_initcall() time [*] for
prandom32*() users, namely in prandom_init(), it is less relevant
from late_initcall() onwards as we overwrite seeds through
prandom_reseed() anyways with a seed source of higher entropy, that
is, get_random_bytes(). In other words, a exhaustive keysearch of
96 bit would be needed. Now, with the help of this patch, this
state-search increases further to 128 bit. Initialization needs
to make sure that s1 > 1, s2 > 7, s3 > 15, s4 > 127.

taus88 and taus113 algorithm is also part of GSL. I added a test
case in the next patch to verify internal behaviour of this patch
with GSL and ran tests with the dieharder 3.31.1 RNG test suite:

$ dieharder -g 052 -a -m 10 -s 1 -S 4137730333 #taus88
$ dieharder -g 054 -a -m 10 -s 1 -S 4137730333 #taus113

With this seed configuration, in order to compare both, we get
the following differences:

algorithm                 taus88           taus113
rands/second [**]         1.61e+08         1.37e+08
sts_serial(4, 1st run)    WEAK             PASSED
sts_serial(9, 2nd run)    WEAK             PASSED
rgb_lagged_sum(31)        WEAK             PASSED

We took out diehard_sums test as according to the authors it is
considered broken and unusable [4]. Despite that and the slight
decrease in performance (which is acceptable), taus113 here passes
all 113 tests (only rgb_minimum_distance_5 in WEAK, the rest PASSED).
In general, taus/taus113 is considered "very good" by the authors
of dieharder [5].

The papers [1][2] states a single warm-up step is sufficient by
running quicktaus once on each state to ensure proper initialization
of ~s_{0}:

Our selection of (s) according to Table 1 of [1] row 1 holds the
condition L - k <= r - s, that is,

  (32 32 32 32) - (31 29 28 25) <= (25 27 15 22) - (18 2 7 13)

with r = k - q and q = (6 2 13 3) as also stated by the paper.
So according to [2] we are safe with one round of quicktaus for
initialization. However we decided to include the warm-up phase
of the PRNG as done in GSL in every case as a safety net. We also
use the warm up phase to make the output of the RNG easier to
verify by the GSL output.

In prandom_init(), we also mix random_get_entropy() into it, just
like drivers/char/random.c does it, jiffies ^ random_get_entropy().
random-get_entropy() is get_cycles(). xor is entropy preserving so
it is fine if it is not implemented by some architectures.

Note, this PRNG is *not* used for cryptography in the kernel, but
rather as a fast PRNG for various randomizations i.e. in the
networking code, or elsewhere for debugging purposes, for example.

[*]: In order to generate some "sort of pseduo-randomness", since
get_random_bytes() is not yet available for us, we use jiffies and
initialize states s1 - s3 with a simple linear congruential generator
(LCG), that is x <- x * 69069; and derive s2, s3, from the 32bit
initialization from s1. So the above quote from [3] accounts only
for the time from core to late initcall, not afterwards.
[**] Single threaded run on MacBook Air w/ Intel Core i5-3317U

 [1] http://www.iro.umontreal.ca/~lecuyer/myftp/papers/tausme2.ps
 [2] http://www.iro.umontreal.ca/~lecuyer/myftp/papers/tausme.ps
 [3] http://thread.gmane.org/gmane.comp.encryption.general/12103/
 [4] http://code.google.com/p/dieharder/source/browse/trunk/libdieharder/diehard_sums.c?spec=svn490&r=490#20
 [5] http://www.phy.duke.edu/~rgb/General/dieharder.php

Joint work with Hannes Frederic Sowa.

Cc: Florian Weimer <fweimer@redhat.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/random.h | 11 +++----
 lib/random32.c         | 80 +++++++++++++++++++++++++++++---------------------
 2 files changed, 52 insertions(+), 39 deletions(-)

diff --git a/include/linux/random.h b/include/linux/random.h
index 8ef0b70bd1f9..4002b3df4c85 100644
--- a/include/linux/random.h
+++ b/include/linux/random.h
@@ -32,10 +32,10 @@ void prandom_seed(u32 seed);
 void prandom_reseed_late(void);
 
 struct rnd_state {
-	__u32 s1, s2, s3;
+	__u32 s1, s2, s3, s4;
 };
 
-u32 prandom_u32_state(struct rnd_state *);
+u32 prandom_u32_state(struct rnd_state *state);
 void prandom_bytes_state(struct rnd_state *state, void *buf, int nbytes);
 
 /*
@@ -55,9 +55,10 @@ static inline void prandom_seed_state(struct rnd_state *state, u64 seed)
 {
 	u32 i = (seed >> 32) ^ (seed << 10) ^ seed;
 
-	state->s1 = __seed(i, 2);
-	state->s2 = __seed(i, 8);
-	state->s3 = __seed(i, 16);
+	state->s1 = __seed(i,   2U);
+	state->s2 = __seed(i,   8U);
+	state->s3 = __seed(i,  16U);
+	state->s4 = __seed(i, 128U);
 }
 
 #ifdef CONFIG_ARCH_RANDOM
diff --git a/lib/random32.c b/lib/random32.c
index 9f2f2fb03dfe..27adb753180f 100644
--- a/lib/random32.c
+++ b/lib/random32.c
@@ -2,19 +2,19 @@
   This is a maximally equidistributed combined Tausworthe generator
   based on code from GNU Scientific Library 1.5 (30 Jun 2004)
 
-   x_n = (s1_n ^ s2_n ^ s3_n)
+  lfsr113 version:
 
-   s1_{n+1} = (((s1_n & 4294967294) <<12) ^ (((s1_n <<13) ^ s1_n) >>19))
-   s2_{n+1} = (((s2_n & 4294967288) << 4) ^ (((s2_n << 2) ^ s2_n) >>25))
-   s3_{n+1} = (((s3_n & 4294967280) <<17) ^ (((s3_n << 3) ^ s3_n) >>11))
+   x_n = (s1_n ^ s2_n ^ s3_n ^ s4_n)
 
-   The period of this generator is about 2^88.
+   s1_{n+1} = (((s1_n & 4294967294) << 18) ^ (((s1_n <<  6) ^ s1_n) >> 13))
+   s2_{n+1} = (((s2_n & 4294967288) <<  2) ^ (((s2_n <<  2) ^ s2_n) >> 27))
+   s3_{n+1} = (((s3_n & 4294967280) <<  7) ^ (((s3_n << 13) ^ s3_n) >> 21))
+   s4_{n+1} = (((s4_n & 4294967168) << 13) ^ (((s4_n <<  3) ^ s4_n) >> 12))
 
-   From: P. L'Ecuyer, "Maximally Equidistributed Combined Tausworthe
-   Generators", Mathematics of Computation, 65, 213 (1996), 203--213.
-
-   This is available on the net from L'Ecuyer's home page,
+   The period of this generator is about 2^113 (see erratum paper).
 
+   From: P. L'Ecuyer, "Maximally Equidistributed Combined Tausworthe
+   Generators", Mathematics of Computation, 65, 213 (1996), 203--213:
    http://www.iro.umontreal.ca/~lecuyer/myftp/papers/tausme.ps
    ftp://ftp.iro.umontreal.ca/pub/simulation/lecuyer/papers/tausme.ps
 
@@ -29,7 +29,7 @@
         that paper.)
 
    This affects the seeding procedure by imposing the requirement
-   s1 > 1, s2 > 7, s3 > 15.
+   s1 > 1, s2 > 7, s3 > 15, s4 > 127.
 
 */
 
@@ -52,11 +52,12 @@ u32 prandom_u32_state(struct rnd_state *state)
 {
 #define TAUSWORTHE(s,a,b,c,d) ((s&c)<<d) ^ (((s <<a) ^ s)>>b)
 
-	state->s1 = TAUSWORTHE(state->s1, 13, 19, 4294967294UL, 12);
-	state->s2 = TAUSWORTHE(state->s2, 2, 25, 4294967288UL, 4);
-	state->s3 = TAUSWORTHE(state->s3, 3, 11, 4294967280UL, 17);
+	state->s1 = TAUSWORTHE(state->s1,  6U, 13U, 4294967294U, 18U);
+	state->s2 = TAUSWORTHE(state->s2,  2U, 27U, 4294967288U,  2U);
+	state->s3 = TAUSWORTHE(state->s3, 13U, 21U, 4294967280U,  7U);
+	state->s4 = TAUSWORTHE(state->s4,  3U, 12U, 4294967168U, 13U);
 
-	return (state->s1 ^ state->s2 ^ state->s3);
+	return (state->s1 ^ state->s2 ^ state->s3 ^ state->s4);
 }
 EXPORT_SYMBOL(prandom_u32_state);
 
@@ -126,6 +127,21 @@ void prandom_bytes(void *buf, int bytes)
 }
 EXPORT_SYMBOL(prandom_bytes);
 
+static void prandom_warmup(struct rnd_state *state)
+{
+	/* Calling RNG ten times to satify recurrence condition */
+	prandom_u32_state(state);
+	prandom_u32_state(state);
+	prandom_u32_state(state);
+	prandom_u32_state(state);
+	prandom_u32_state(state);
+	prandom_u32_state(state);
+	prandom_u32_state(state);
+	prandom_u32_state(state);
+	prandom_u32_state(state);
+	prandom_u32_state(state);
+}
+
 /**
  *	prandom_seed - add entropy to pseudo random number generator
  *	@seed: seed value
@@ -141,8 +157,9 @@ void prandom_seed(u32 entropy)
 	 */
 	for_each_possible_cpu (i) {
 		struct rnd_state *state = &per_cpu(net_rand_state, i);
-		state->s1 = __seed(state->s1 ^ entropy, 2);
-		prandom_u32_state(state);
+
+		state->s1 = __seed(state->s1 ^ entropy, 2U);
+		prandom_warmup(state);
 	}
 }
 EXPORT_SYMBOL(prandom_seed);
@@ -158,18 +175,13 @@ static int __init prandom_init(void)
 	for_each_possible_cpu(i) {
 		struct rnd_state *state = &per_cpu(net_rand_state,i);
 
-#define LCG(x)	((x) * 69069)	/* super-duper LCG */
-		state->s1 = __seed(LCG(i + jiffies), 2);
-		state->s2 = __seed(LCG(state->s1), 8);
-		state->s3 = __seed(LCG(state->s2), 16);
-
-		/* "warm it up" */
-		prandom_u32_state(state);
-		prandom_u32_state(state);
-		prandom_u32_state(state);
-		prandom_u32_state(state);
-		prandom_u32_state(state);
-		prandom_u32_state(state);
+#define LCG(x)	((x) * 69069U)	/* super-duper LCG */
+		state->s1 = __seed(LCG((i + jiffies) ^ random_get_entropy()), 2U);
+		state->s2 = __seed(LCG(state->s1),   8U);
+		state->s3 = __seed(LCG(state->s2),  16U);
+		state->s4 = __seed(LCG(state->s3), 128U);
+
+		prandom_warmup(state);
 	}
 	return 0;
 }
@@ -215,15 +227,15 @@ static void __prandom_reseed(bool late)
 
 	for_each_possible_cpu(i) {
 		struct rnd_state *state = &per_cpu(net_rand_state,i);
-		u32 seeds[3];
+		u32 seeds[4];
 
 		get_random_bytes(&seeds, sizeof(seeds));
-		state->s1 = __seed(seeds[0], 2);
-		state->s2 = __seed(seeds[1], 8);
-		state->s3 = __seed(seeds[2], 16);
+		state->s1 = __seed(seeds[0],   2U);
+		state->s2 = __seed(seeds[1],   8U);
+		state->s3 = __seed(seeds[2],  16U);
+		state->s4 = __seed(seeds[3], 128U);
 
-		/* mix it in */
-		prandom_u32_state(state);
+		prandom_warmup(state);
 	}
 out:
 	spin_unlock_irqrestore(&lock, flags);
-- 
cgit 


From a6a9c0f1bf5a9a5faa605773ea75e0b93c3ab108 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Mon, 11 Nov 2013 12:20:37 +0100
Subject: random32: add test cases for taus113 implementation

We generated a battery of 100 test cases from GSL taus113 implemention
and compare the results from a particular seed and a particular
iteration with our implementation in the kernel. We have verified on
32 and 64 bit machines that our taus113 kernel implementation gives
same results as GSL taus113 implementation:

  [    0.147370] prandom: seed boundary self test passed
  [    0.148078] prandom: 100 self tests passed

This is a Kconfig option that is disabled on default, just like the
crc32 init selftests in order to not unnecessary slow down boot process.
We also refactored out prandom_seed_very_weak() as it's now used in
multiple places in order to reduce redundant code.

GSL code we used for generating test cases:

  int i, j;
  srand(time(NULL));
  for (i = 0; i < 100; ++i) {
    int iteration = 500 + (rand() % 500);
    gsl_rng_default_seed = rand() + 1;
    gsl_rng *r = gsl_rng_alloc(gsl_rng_taus113);
    printf("\t{ %lu, ", gsl_rng_default_seed);
    for (j = 0; j < iteration - 1; ++j)
      gsl_rng_get(r);
    printf("%u, %lu },\n", iteration, gsl_rng_get(r));
    gsl_rng_free(r);
  }

Joint work with Hannes Frederic Sowa.

Cc: Florian Weimer <fweimer@redhat.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 lib/Kconfig    |   7 +++
 lib/random32.c | 195 +++++++++++++++++++++++++++++++++++++++++++++++++++++++--
 2 files changed, 196 insertions(+), 6 deletions(-)

diff --git a/lib/Kconfig b/lib/Kconfig
index b3c8be0da17f..75485e163ca3 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -189,6 +189,13 @@ config AUDIT_GENERIC
 	depends on AUDIT && !AUDIT_ARCH
 	default y
 
+config RANDOM32_SELFTEST
+	bool "PRNG perform self test on init"
+	default n
+	help
+	  This option enables the 32 bit PRNG library functions to perform a
+	  self test on initialization.
+
 #
 # compression support is select'ed if needed
 #
diff --git a/lib/random32.c b/lib/random32.c
index 27adb753180f..82da4f4c3489 100644
--- a/lib/random32.c
+++ b/lib/random32.c
@@ -38,6 +38,11 @@
 #include <linux/export.h>
 #include <linux/jiffies.h>
 #include <linux/random.h>
+#include <linux/sched.h>
+
+#ifdef CONFIG_RANDOM32_SELFTEST
+static void __init prandom_state_selftest(void);
+#endif
 
 static DEFINE_PER_CPU(struct rnd_state, net_rand_state);
 
@@ -142,6 +147,23 @@ static void prandom_warmup(struct rnd_state *state)
 	prandom_u32_state(state);
 }
 
+static void prandom_seed_very_weak(struct rnd_state *state, u32 seed)
+{
+	/* Note: This sort of seeding is ONLY used in test cases and
+	 * during boot at the time from core_initcall until late_initcall
+	 * as we don't have a stronger entropy source available yet.
+	 * After late_initcall, we reseed entire state, we have to (!),
+	 * otherwise an attacker just needs to search 32 bit space to
+	 * probe for our internal 128 bit state if he knows a couple
+	 * of prandom32 outputs!
+	 */
+#define LCG(x)	((x) * 69069U)	/* super-duper LCG */
+	state->s1 = __seed(LCG(seed),        2U);
+	state->s2 = __seed(LCG(state->s1),   8U);
+	state->s3 = __seed(LCG(state->s2),  16U);
+	state->s4 = __seed(LCG(state->s3), 128U);
+}
+
 /**
  *	prandom_seed - add entropy to pseudo random number generator
  *	@seed: seed value
@@ -172,15 +194,14 @@ static int __init prandom_init(void)
 {
 	int i;
 
+#ifdef CONFIG_RANDOM32_SELFTEST
+	prandom_state_selftest();
+#endif
+
 	for_each_possible_cpu(i) {
 		struct rnd_state *state = &per_cpu(net_rand_state,i);
 
-#define LCG(x)	((x) * 69069U)	/* super-duper LCG */
-		state->s1 = __seed(LCG((i + jiffies) ^ random_get_entropy()), 2U);
-		state->s2 = __seed(LCG(state->s1),   8U);
-		state->s3 = __seed(LCG(state->s2),  16U);
-		state->s4 = __seed(LCG(state->s3), 128U);
-
+		prandom_seed_very_weak(state, (i + jiffies) ^ random_get_entropy());
 		prandom_warmup(state);
 	}
 	return 0;
@@ -253,3 +274,165 @@ static int __init prandom_reseed(void)
 	return 0;
 }
 late_initcall(prandom_reseed);
+
+#ifdef CONFIG_RANDOM32_SELFTEST
+static struct prandom_test1 {
+	u32 seed;
+	u32 result;
+} test1[] = {
+	{ 1U, 3484351685U },
+	{ 2U, 2623130059U },
+	{ 3U, 3125133893U },
+	{ 4U,  984847254U },
+};
+
+static struct prandom_test2 {
+	u32 seed;
+	u32 iteration;
+	u32 result;
+} test2[] = {
+	/* Test cases against taus113 from GSL library. */
+	{  931557656U, 959U, 2975593782U },
+	{ 1339693295U, 876U, 3887776532U },
+	{ 1545556285U, 961U, 1615538833U },
+	{  601730776U, 723U, 1776162651U },
+	{ 1027516047U, 687U,  511983079U },
+	{  416526298U, 700U,  916156552U },
+	{ 1395522032U, 652U, 2222063676U },
+	{  366221443U, 617U, 2992857763U },
+	{ 1539836965U, 714U, 3783265725U },
+	{  556206671U, 994U,  799626459U },
+	{  684907218U, 799U,  367789491U },
+	{ 2121230701U, 931U, 2115467001U },
+	{ 1668516451U, 644U, 3620590685U },
+	{  768046066U, 883U, 2034077390U },
+	{ 1989159136U, 833U, 1195767305U },
+	{  536585145U, 996U, 3577259204U },
+	{ 1008129373U, 642U, 1478080776U },
+	{ 1740775604U, 939U, 1264980372U },
+	{ 1967883163U, 508U,   10734624U },
+	{ 1923019697U, 730U, 3821419629U },
+	{  442079932U, 560U, 3440032343U },
+	{ 1961302714U, 845U,  841962572U },
+	{ 2030205964U, 962U, 1325144227U },
+	{ 1160407529U, 507U,  240940858U },
+	{  635482502U, 779U, 4200489746U },
+	{ 1252788931U, 699U,  867195434U },
+	{ 1961817131U, 719U,  668237657U },
+	{ 1071468216U, 983U,  917876630U },
+	{ 1281848367U, 932U, 1003100039U },
+	{  582537119U, 780U, 1127273778U },
+	{ 1973672777U, 853U, 1071368872U },
+	{ 1896756996U, 762U, 1127851055U },
+	{  847917054U, 500U, 1717499075U },
+	{ 1240520510U, 951U, 2849576657U },
+	{ 1685071682U, 567U, 1961810396U },
+	{ 1516232129U, 557U,    3173877U },
+	{ 1208118903U, 612U, 1613145022U },
+	{ 1817269927U, 693U, 4279122573U },
+	{ 1510091701U, 717U,  638191229U },
+	{  365916850U, 807U,  600424314U },
+	{  399324359U, 702U, 1803598116U },
+	{ 1318480274U, 779U, 2074237022U },
+	{  697758115U, 840U, 1483639402U },
+	{ 1696507773U, 840U,  577415447U },
+	{ 2081979121U, 981U, 3041486449U },
+	{  955646687U, 742U, 3846494357U },
+	{ 1250683506U, 749U,  836419859U },
+	{  595003102U, 534U,  366794109U },
+	{   47485338U, 558U, 3521120834U },
+	{  619433479U, 610U, 3991783875U },
+	{  704096520U, 518U, 4139493852U },
+	{ 1712224984U, 606U, 2393312003U },
+	{ 1318233152U, 922U, 3880361134U },
+	{  855572992U, 761U, 1472974787U },
+	{   64721421U, 703U,  683860550U },
+	{  678931758U, 840U,  380616043U },
+	{  692711973U, 778U, 1382361947U },
+	{  677703619U, 530U, 2826914161U },
+	{   92393223U, 586U, 1522128471U },
+	{ 1222592920U, 743U, 3466726667U },
+	{  358288986U, 695U, 1091956998U },
+	{ 1935056945U, 958U,  514864477U },
+	{  735675993U, 990U, 1294239989U },
+	{ 1560089402U, 897U, 2238551287U },
+	{   70616361U, 829U,   22483098U },
+	{  368234700U, 731U, 2913875084U },
+	{   20221190U, 879U, 1564152970U },
+	{  539444654U, 682U, 1835141259U },
+	{ 1314987297U, 840U, 1801114136U },
+	{ 2019295544U, 645U, 3286438930U },
+	{  469023838U, 716U, 1637918202U },
+	{ 1843754496U, 653U, 2562092152U },
+	{  400672036U, 809U, 4264212785U },
+	{  404722249U, 965U, 2704116999U },
+	{  600702209U, 758U,  584979986U },
+	{  519953954U, 667U, 2574436237U },
+	{ 1658071126U, 694U, 2214569490U },
+	{  420480037U, 749U, 3430010866U },
+	{  690103647U, 969U, 3700758083U },
+	{ 1029424799U, 937U, 3787746841U },
+	{ 2012608669U, 506U, 3362628973U },
+	{ 1535432887U, 998U,   42610943U },
+	{ 1330635533U, 857U, 3040806504U },
+	{ 1223800550U, 539U, 3954229517U },
+	{ 1322411537U, 680U, 3223250324U },
+	{ 1877847898U, 945U, 2915147143U },
+	{ 1646356099U, 874U,  965988280U },
+	{  805687536U, 744U, 4032277920U },
+	{ 1948093210U, 633U, 1346597684U },
+	{  392609744U, 783U, 1636083295U },
+	{  690241304U, 770U, 1201031298U },
+	{ 1360302965U, 696U, 1665394461U },
+	{ 1220090946U, 780U, 1316922812U },
+	{  447092251U, 500U, 3438743375U },
+	{ 1613868791U, 592U,  828546883U },
+	{  523430951U, 548U, 2552392304U },
+	{  726692899U, 810U, 1656872867U },
+	{ 1364340021U, 836U, 3710513486U },
+	{ 1986257729U, 931U,  935013962U },
+	{  407983964U, 921U,  728767059U },
+};
+
+static void __init prandom_state_selftest(void)
+{
+	int i, j, errors = 0, runs = 0;
+	bool error = false;
+
+	for (i = 0; i < ARRAY_SIZE(test1); i++) {
+		struct rnd_state state;
+
+		prandom_seed_very_weak(&state, test1[i].seed);
+		prandom_warmup(&state);
+
+		if (test1[i].result != prandom_u32_state(&state))
+			error = true;
+	}
+
+	if (error)
+		pr_warn("prandom: seed boundary self test failed\n");
+	else
+		pr_info("prandom: seed boundary self test passed\n");
+
+	for (i = 0; i < ARRAY_SIZE(test2); i++) {
+		struct rnd_state state;
+
+		prandom_seed_very_weak(&state, test2[i].seed);
+		prandom_warmup(&state);
+
+		for (j = 0; j < test2[i].iteration - 1; j++)
+			prandom_u32_state(&state);
+
+		if (test2[i].result != prandom_u32_state(&state))
+			errors++;
+
+		runs++;
+		cond_resched();
+	}
+
+	if (errors)
+		pr_warn("prandom: %d/%d self tests failed\n", errors, runs);
+	else
+		pr_info("prandom: %d self tests passed\n", runs);
+}
+#endif
-- 
cgit 


From 6264995f864ac7a9c0c721432ed0edfe83d4ee3c Mon Sep 17 00:00:00 2001
From: Felipe Pena <felipensp@gmail.com>
Date: Fri, 18 Oct 2013 21:20:42 -0300
Subject: wireless: rt2800lib: Fix typo on checking

On rt2800_config_channel_rf53xx function the member default_power1 is checked
for bound limit, but default_power2 is used instead.

Signed-off-by: Felipe Pena <felipensp@gmail.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2800lib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index c5738f14c4ba..776aff3678ff 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -2640,7 +2640,7 @@ static void rt2800_config_channel_rf53xx(struct rt2x00_dev *rt2x00dev,
 
 	if (rt2x00_rt(rt2x00dev, RT5392)) {
 		rt2800_rfcsr_read(rt2x00dev, 50, &rfcsr);
-		if (info->default_power1 > POWER_BOUND)
+		if (info->default_power2 > POWER_BOUND)
 			rt2x00_set_field8(&rfcsr, RFCSR50_TX, POWER_BOUND);
 		else
 			rt2x00_set_field8(&rfcsr, RFCSR50_TX,
-- 
cgit 


From 3aef7dde8dcf09e0124f0a2665845a507331972b Mon Sep 17 00:00:00 2001
From: Felipe Pena <felipensp@gmail.com>
Date: Fri, 18 Oct 2013 21:52:40 -0300
Subject: rtlwifi: rtl8192se: Fix wrong assignment

There is a typo in the struct member name on assignment when checking
rtlphy->current_chan_bw == HT_CHANNEL_WIDTH_20_40, the check uses pwrgroup_ht40
for bound limit and uses pwrgroup_ht20 when assigning instead.

Signed-off-by: Felipe Pena <felipensp@gmail.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: stable@vger.kernel.org [3.0+]
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/rtl8192se/rf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/rf.c b/drivers/net/wireless/rtlwifi/rtl8192se/rf.c
index 5061f1db3f02..92d38ab3c60e 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192se/rf.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192se/rf.c
@@ -265,7 +265,7 @@ static void _rtl92s_get_txpower_writeval_byregulatory(struct ieee80211_hw *hw,
 				    rtlefuse->pwrgroup_ht40
 				    [RF90_PATH_A][chnl - 1]) {
 					pwrdiff_limit[i] =
-					  rtlefuse->pwrgroup_ht20
+					  rtlefuse->pwrgroup_ht40
 					  [RF90_PATH_A][chnl - 1];
 				}
 			} else {
-- 
cgit 


From 95edbc30db7882a45c4040747331cf613aa23c4a Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 22 Oct 2013 15:24:42 -0700
Subject: mwifiex: potential integer underflow in mwifiex_ret_wmm_get_status()

Before we loop for next iteration we adjust the buffer pointer and
"resp_len":

		curr += (tlv_len + sizeof(tlv_hdr->header));
		resp_len -= (tlv_len + sizeof(tlv_hdr->header));

If "resp_len" gets set to negative then it counts as a high positive
value.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/mwifiex/wmm.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/mwifiex/wmm.c b/drivers/net/wireless/mwifiex/wmm.c
index 5dd0ccc70b86..13eaeed03898 100644
--- a/drivers/net/wireless/mwifiex/wmm.c
+++ b/drivers/net/wireless/mwifiex/wmm.c
@@ -722,6 +722,9 @@ int mwifiex_ret_wmm_get_status(struct mwifiex_private *priv,
 		tlv_hdr = (struct mwifiex_ie_types_data *) curr;
 		tlv_len = le16_to_cpu(tlv_hdr->header.len);
 
+		if (resp_len < tlv_len + sizeof(tlv_hdr->header))
+			break;
+
 		switch (le16_to_cpu(tlv_hdr->header.type)) {
 		case TLV_TYPE_WMMQSTATUS:
 			tlv_wmm_qstatus =
-- 
cgit 


From 930fd35c8de88cc1ce934aa655181c4879422a37 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Tue, 22 Oct 2013 15:24:43 -0700
Subject: mwifiex: replace u16 with __le16 in struct mwifiex_types_power_group

__le16 to u16 conversion is missing for "pg_tlv_hdr->length"
in mwifiex_get_power_level(). This creates a problem on big
endian machines.
It is resolved by changing definition of the structure
and making required endianness changes.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/mwifiex/fw.h          | 4 ++--
 drivers/net/wireless/mwifiex/sta_cmd.c     | 4 ++--
 drivers/net/wireless/mwifiex/sta_cmdresp.c | 4 ++--
 drivers/net/wireless/mwifiex/sta_ioctl.c   | 5 +++--
 4 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/net/wireless/mwifiex/fw.h b/drivers/net/wireless/mwifiex/fw.h
index f80f30b6160e..c8385ec77a86 100644
--- a/drivers/net/wireless/mwifiex/fw.h
+++ b/drivers/net/wireless/mwifiex/fw.h
@@ -1020,8 +1020,8 @@ struct mwifiex_power_group {
 } __packed;
 
 struct mwifiex_types_power_group {
-	u16 type;
-	u16 length;
+	__le16 type;
+	__le16 length;
 } __packed;
 
 struct host_cmd_ds_txpwr_cfg {
diff --git a/drivers/net/wireless/mwifiex/sta_cmd.c b/drivers/net/wireless/mwifiex/sta_cmd.c
index 7d66018a2e33..2181ee283d82 100644
--- a/drivers/net/wireless/mwifiex/sta_cmd.c
+++ b/drivers/net/wireless/mwifiex/sta_cmd.c
@@ -239,14 +239,14 @@ static int mwifiex_cmd_tx_power_cfg(struct host_cmd_ds_command *cmd,
 			memmove(cmd_txp_cfg, txp,
 				sizeof(struct host_cmd_ds_txpwr_cfg) +
 				sizeof(struct mwifiex_types_power_group) +
-				pg_tlv->length);
+				le16_to_cpu(pg_tlv->length));
 
 			pg_tlv = (struct mwifiex_types_power_group *) ((u8 *)
 				  cmd_txp_cfg +
 				  sizeof(struct host_cmd_ds_txpwr_cfg));
 			cmd->size = cpu_to_le16(le16_to_cpu(cmd->size) +
 				  sizeof(struct mwifiex_types_power_group) +
-				  pg_tlv->length);
+				  le16_to_cpu(pg_tlv->length));
 		} else {
 			memmove(cmd_txp_cfg, txp, sizeof(*txp));
 		}
diff --git a/drivers/net/wireless/mwifiex/sta_cmdresp.c b/drivers/net/wireless/mwifiex/sta_cmdresp.c
index 58a6013712d2..bdf50fd5ef6b 100644
--- a/drivers/net/wireless/mwifiex/sta_cmdresp.c
+++ b/drivers/net/wireless/mwifiex/sta_cmdresp.c
@@ -340,7 +340,7 @@ static int mwifiex_get_power_level(struct mwifiex_private *priv, void *data_buf)
 		((u8 *) data_buf + sizeof(struct host_cmd_ds_txpwr_cfg));
 	pg = (struct mwifiex_power_group *)
 		((u8 *) pg_tlv_hdr + sizeof(struct mwifiex_types_power_group));
-	length = pg_tlv_hdr->length;
+	length = le16_to_cpu(pg_tlv_hdr->length);
 	if (length > 0) {
 		max_power = pg->power_max;
 		min_power = pg->power_min;
@@ -356,7 +356,7 @@ static int mwifiex_get_power_level(struct mwifiex_private *priv, void *data_buf)
 
 		length -= sizeof(struct mwifiex_power_group);
 	}
-	if (pg_tlv_hdr->length > 0) {
+	if (le16_to_cpu(pg_tlv_hdr->length) > 0) {
 		priv->min_tx_power_level = (u8) min_power;
 		priv->max_tx_power_level = (u8) max_power;
 	}
diff --git a/drivers/net/wireless/mwifiex/sta_ioctl.c b/drivers/net/wireless/mwifiex/sta_ioctl.c
index f084412eee0b..c8e029df770e 100644
--- a/drivers/net/wireless/mwifiex/sta_ioctl.c
+++ b/drivers/net/wireless/mwifiex/sta_ioctl.c
@@ -638,8 +638,9 @@ int mwifiex_set_tx_power(struct mwifiex_private *priv,
 		txp_cfg->mode = cpu_to_le32(1);
 		pg_tlv = (struct mwifiex_types_power_group *)
 			 (buf + sizeof(struct host_cmd_ds_txpwr_cfg));
-		pg_tlv->type = TLV_TYPE_POWER_GROUP;
-		pg_tlv->length = 4 * sizeof(struct mwifiex_power_group);
+		pg_tlv->type = cpu_to_le16(TLV_TYPE_POWER_GROUP);
+		pg_tlv->length =
+			cpu_to_le16(4 * sizeof(struct mwifiex_power_group));
 		pg = (struct mwifiex_power_group *)
 		     (buf + sizeof(struct host_cmd_ds_txpwr_cfg)
 		      + sizeof(struct mwifiex_types_power_group));
-- 
cgit 


From fe1c9a443e0d1e0af790883f091fb1c4f418bc8f Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Tue, 22 Oct 2013 15:24:44 -0700
Subject: mwifiex: fix invalid memory access in mwifiex_get_power_level()

With "while (length)" check we may end up in accessing invalid
memory in last iteration.
This patch makes sure that tlv length is not less than the length
of structure mwifiex_power_group when min/max power is calculated.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/mwifiex/sta_cmdresp.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/mwifiex/sta_cmdresp.c b/drivers/net/wireless/mwifiex/sta_cmdresp.c
index bdf50fd5ef6b..5edea4dd05a8 100644
--- a/drivers/net/wireless/mwifiex/sta_cmdresp.c
+++ b/drivers/net/wireless/mwifiex/sta_cmdresp.c
@@ -341,12 +341,16 @@ static int mwifiex_get_power_level(struct mwifiex_private *priv, void *data_buf)
 	pg = (struct mwifiex_power_group *)
 		((u8 *) pg_tlv_hdr + sizeof(struct mwifiex_types_power_group));
 	length = le16_to_cpu(pg_tlv_hdr->length);
-	if (length > 0) {
-		max_power = pg->power_max;
-		min_power = pg->power_min;
-		length -= sizeof(struct mwifiex_power_group);
-	}
-	while (length) {
+
+	/* At least one structure required to update power */
+	if (length < sizeof(struct mwifiex_power_group))
+		return 0;
+
+	max_power = pg->power_max;
+	min_power = pg->power_min;
+	length -= sizeof(struct mwifiex_power_group);
+
+	while (length >= sizeof(struct mwifiex_power_group)) {
 		pg++;
 		if (max_power < pg->power_max)
 			max_power = pg->power_max;
@@ -356,10 +360,8 @@ static int mwifiex_get_power_level(struct mwifiex_private *priv, void *data_buf)
 
 		length -= sizeof(struct mwifiex_power_group);
 	}
-	if (le16_to_cpu(pg_tlv_hdr->length) > 0) {
-		priv->min_tx_power_level = (u8) min_power;
-		priv->max_tx_power_level = (u8) max_power;
-	}
+	priv->min_tx_power_level = (u8) min_power;
+	priv->max_tx_power_level = (u8) max_power;
 
 	return 0;
 }
-- 
cgit 


From 2636c308fd720137d719c91da95adca2cd8f1c51 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Tue, 22 Oct 2013 15:24:45 -0700
Subject: mwifiex: fix invalid memory access in mwifiex_ret_tx_rate_cfg()

As tlv_buf_len is decremented at the end of the loop, we may have
accessed invalid memory in the last iteration.
Modify the while condition and add a break statement at the
begining of the loop to fix the problem.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/mwifiex/sta_cmdresp.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/net/wireless/mwifiex/sta_cmdresp.c b/drivers/net/wireless/mwifiex/sta_cmdresp.c
index 5edea4dd05a8..2675ca7f8d14 100644
--- a/drivers/net/wireless/mwifiex/sta_cmdresp.c
+++ b/drivers/net/wireless/mwifiex/sta_cmdresp.c
@@ -274,17 +274,20 @@ static int mwifiex_ret_tx_rate_cfg(struct mwifiex_private *priv,
 	struct host_cmd_ds_tx_rate_cfg *rate_cfg = &resp->params.tx_rate_cfg;
 	struct mwifiex_rate_scope *rate_scope;
 	struct mwifiex_ie_types_header *head;
-	u16 tlv, tlv_buf_len;
+	u16 tlv, tlv_buf_len, tlv_buf_left;
 	u8 *tlv_buf;
 	u32 i;
 
-	tlv_buf = ((u8 *)rate_cfg) +
-			sizeof(struct host_cmd_ds_tx_rate_cfg);
-	tlv_buf_len = le16_to_cpu(*(__le16 *) (tlv_buf + sizeof(u16)));
+	tlv_buf = ((u8 *)rate_cfg) + sizeof(struct host_cmd_ds_tx_rate_cfg);
+	tlv_buf_left = le16_to_cpu(resp->size) - S_DS_GEN - sizeof(*rate_cfg);
 
-	while (tlv_buf && tlv_buf_len > 0) {
-		tlv = (*tlv_buf);
-		tlv = tlv | (*(tlv_buf + 1) << 8);
+	while (tlv_buf_left >= sizeof(*head)) {
+		head = (struct mwifiex_ie_types_header *)tlv_buf;
+		tlv = le16_to_cpu(head->type);
+		tlv_buf_len = le16_to_cpu(head->len);
+
+		if (tlv_buf_left < (sizeof(*head) + tlv_buf_len))
+			break;
 
 		switch (tlv) {
 		case TLV_TYPE_RATE_SCOPE:
@@ -304,9 +307,8 @@ static int mwifiex_ret_tx_rate_cfg(struct mwifiex_private *priv,
 			/* Add RATE_DROP tlv here */
 		}
 
-		head = (struct mwifiex_ie_types_header *) tlv_buf;
-		tlv_buf += le16_to_cpu(head->len) + sizeof(*head);
-		tlv_buf_len -= le16_to_cpu(head->len);
+		tlv_buf += (sizeof(*head) + tlv_buf_len);
+		tlv_buf_left -= (sizeof(*head) + tlv_buf_len);
 	}
 
 	priv->is_data_rate_auto = mwifiex_is_rate_auto(priv);
-- 
cgit 


From 01c85adfff5a8462aeea70796314c39dab1d9cc2 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Tue, 22 Oct 2013 15:24:46 -0700
Subject: mwifiex: fix invalid memory access in mwifiex_update_autoindex_ies()

While parsing TLVs, return failure if number of remaining bytes
are less than current tlv length. This avoids invalid memory
access.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/mwifiex/ie.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/mwifiex/ie.c b/drivers/net/wireless/mwifiex/ie.c
index 220af4fe0fc6..81ac001ee741 100644
--- a/drivers/net/wireless/mwifiex/ie.c
+++ b/drivers/net/wireless/mwifiex/ie.c
@@ -82,7 +82,7 @@ mwifiex_update_autoindex_ies(struct mwifiex_private *priv,
 			     struct mwifiex_ie_list *ie_list)
 {
 	u16 travel_len, index, mask;
-	s16 input_len;
+	s16 input_len, tlv_len;
 	struct mwifiex_ie *ie;
 	u8 *tmp;
 
@@ -91,11 +91,13 @@ mwifiex_update_autoindex_ies(struct mwifiex_private *priv,
 
 	ie_list->len = 0;
 
-	while (input_len > 0) {
+	while (input_len >= sizeof(struct mwifiex_ie_types_header)) {
 		ie = (struct mwifiex_ie *)(((u8 *)ie_list) + travel_len);
-		input_len -= le16_to_cpu(ie->ie_length) + MWIFIEX_IE_HDR_SIZE;
-		travel_len += le16_to_cpu(ie->ie_length) + MWIFIEX_IE_HDR_SIZE;
+		tlv_len = le16_to_cpu(ie->ie_length);
+		travel_len += tlv_len + MWIFIEX_IE_HDR_SIZE;
 
+		if (input_len < tlv_len + MWIFIEX_IE_HDR_SIZE)
+			return -1;
 		index = le16_to_cpu(ie->ie_index);
 		mask = le16_to_cpu(ie->mgmt_subtype_mask);
 
@@ -132,6 +134,7 @@ mwifiex_update_autoindex_ies(struct mwifiex_private *priv,
 		le16_add_cpu(&ie_list->len,
 			     le16_to_cpu(priv->mgmt_ie[index].ie_length) +
 			     MWIFIEX_IE_HDR_SIZE);
+		input_len -= tlv_len + MWIFIEX_IE_HDR_SIZE;
 	}
 
 	if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
-- 
cgit 


From 450991fd2f9d362562c69b2e70832b2ecb7624cb Mon Sep 17 00:00:00 2001
From: Colin Ian King <colin.king@canonical.com>
Date: Mon, 28 Oct 2013 12:58:12 +0000
Subject: rtlwifi: fix null dereference on efuse_word on kmalloc fail returns
 NULL

kmalloc on efuse_word can return null, leading to free'ing of
elements in efuse_word on the error exit path even though it has not
been allocated.  Instead, don't free the elements of efuse_word if
kmalloc failed.

Also, kmalloc of any of the arrays in efuse_word[] can also fail,
leading to undefined contents in the remaining elements leading to
problems when free'ing these elements later on.  So kzalloc efuse_word
to ensure the kfree on the remaining elements won't cause breakage.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/efuse.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/efuse.c b/drivers/net/wireless/rtlwifi/efuse.c
index ae13fb94b2e8..2ffc7298f686 100644
--- a/drivers/net/wireless/rtlwifi/efuse.c
+++ b/drivers/net/wireless/rtlwifi/efuse.c
@@ -262,9 +262,9 @@ void read_efuse(struct ieee80211_hw *hw, u16 _offset, u16 _size_byte, u8 *pbuf)
 			    sizeof(u8), GFP_ATOMIC);
 	if (!efuse_tbl)
 		return;
-	efuse_word = kmalloc(EFUSE_MAX_WORD_UNIT * sizeof(u16 *), GFP_ATOMIC);
+	efuse_word = kzalloc(EFUSE_MAX_WORD_UNIT * sizeof(u16 *), GFP_ATOMIC);
 	if (!efuse_word)
-		goto done;
+		goto out;
 	for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++) {
 		efuse_word[i] = kmalloc(efuse_max_section * sizeof(u16),
 					GFP_ATOMIC);
@@ -378,6 +378,7 @@ done:
 	for (i = 0; i < EFUSE_MAX_WORD_UNIT; i++)
 		kfree(efuse_word[i]);
 	kfree(efuse_word);
+out:
 	kfree(efuse_tbl);
 }
 
-- 
cgit 


From a497e47d4aec37aaf8f13509f3ef3d1f6a717d88 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 30 Oct 2013 20:12:51 +0300
Subject: libertas: potential oops in debugfs

If we do a zero size allocation then it will oops.  Also we can't be
sure the user passes us a NUL terminated string so I've added a
terminator.

This code can only be triggered by root.

Reported-by: Nico Golde <nico@ngolde.de>
Reported-by: Fabian Yamaguchi <fabs@goesec.de>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/libertas/debugfs.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/libertas/debugfs.c b/drivers/net/wireless/libertas/debugfs.c
index 668dd27616a0..cc6a0a586f0b 100644
--- a/drivers/net/wireless/libertas/debugfs.c
+++ b/drivers/net/wireless/libertas/debugfs.c
@@ -913,7 +913,10 @@ static ssize_t lbs_debugfs_write(struct file *f, const char __user *buf,
 	char *p2;
 	struct debug_data *d = f->private_data;
 
-	pdata = kmalloc(cnt, GFP_KERNEL);
+	if (cnt == 0)
+		return 0;
+
+	pdata = kmalloc(cnt + 1, GFP_KERNEL);
 	if (pdata == NULL)
 		return 0;
 
@@ -922,6 +925,7 @@ static ssize_t lbs_debugfs_write(struct file *f, const char __user *buf,
 		kfree(pdata);
 		return 0;
 	}
+	pdata[cnt] = '\0';
 
 	p0 = pdata;
 	for (i = 0; i < num_of_items; i++) {
-- 
cgit 


From 7777bd458e9e7cf9ac604f22e5b1691628b45c66 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 30 Oct 2013 13:22:34 +0800
Subject: libertas: fix error return code in if_cs_probe()

Fix to return -ENODEV in the unknown model error handling
case instead of 0, as done elsewhere in this function.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/libertas/if_cs.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c
index ef8c98e21098..f499efc6abcf 100644
--- a/drivers/net/wireless/libertas/if_cs.c
+++ b/drivers/net/wireless/libertas/if_cs.c
@@ -902,6 +902,7 @@ static int if_cs_probe(struct pcmcia_device *p_dev)
 	if (card->model == MODEL_UNKNOWN) {
 		pr_err("unsupported manf_id 0x%04x / card_id 0x%04x\n",
 		       p_dev->manf_id, p_dev->card_id);
+		ret = -ENODEV;
 		goto out2;
 	}
 
-- 
cgit 


From 3d8bfe141be8e5c21261fc63da8e7964d44f2645 Mon Sep 17 00:00:00 2001
From: Stanislaw Gruszka <sgruszka@redhat.com>
Date: Thu, 31 Oct 2013 11:23:57 +0100
Subject: rt2x00: fix HT TX descriptor settings regression

Since:

commit 36323f817af0376c78612cfdab714b0feb05fea5
Author: Thomas Huehn <thomas@net.t-labs.tu-berlin.de>
Date:   Mon Jul 23 21:33:42 2012 +0200

    mac80211: move TX station pointer and restructure TX

we do not pass sta pointer to rt2x00queue_create_tx_descriptor_ht(),
hence we do not correctly set station WCID and AMPDU density parameters.

Cc: stable@vger.kernel.org # 3.7+
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2x00lib.h   | 2 +-
 drivers/net/wireless/rt2x00/rt2x00mac.c   | 4 ++--
 drivers/net/wireless/rt2x00/rt2x00queue.c | 4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/rt2x00/rt2x00lib.h b/drivers/net/wireless/rt2x00/rt2x00lib.h
index a0935987fa3a..7f40ab8e1bd8 100644
--- a/drivers/net/wireless/rt2x00/rt2x00lib.h
+++ b/drivers/net/wireless/rt2x00/rt2x00lib.h
@@ -146,7 +146,7 @@ void rt2x00queue_remove_l2pad(struct sk_buff *skb, unsigned int header_length);
  * @local: frame is not from mac80211
  */
 int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb,
-			       bool local);
+			       struct ieee80211_sta *sta, bool local);
 
 /**
  * rt2x00queue_update_beacon - Send new beacon from mac80211
diff --git a/drivers/net/wireless/rt2x00/rt2x00mac.c b/drivers/net/wireless/rt2x00/rt2x00mac.c
index 7c157857f5ce..2183e7978399 100644
--- a/drivers/net/wireless/rt2x00/rt2x00mac.c
+++ b/drivers/net/wireless/rt2x00/rt2x00mac.c
@@ -90,7 +90,7 @@ static int rt2x00mac_tx_rts_cts(struct rt2x00_dev *rt2x00dev,
 				  frag_skb->data, data_length, tx_info,
 				  (struct ieee80211_rts *)(skb->data));
 
-	retval = rt2x00queue_write_tx_frame(queue, skb, true);
+	retval = rt2x00queue_write_tx_frame(queue, skb, NULL, true);
 	if (retval) {
 		dev_kfree_skb_any(skb);
 		rt2x00_warn(rt2x00dev, "Failed to send RTS/CTS frame\n");
@@ -151,7 +151,7 @@ void rt2x00mac_tx(struct ieee80211_hw *hw,
 			goto exit_fail;
 	}
 
-	if (unlikely(rt2x00queue_write_tx_frame(queue, skb, false)))
+	if (unlikely(rt2x00queue_write_tx_frame(queue, skb, control->sta, false)))
 		goto exit_fail;
 
 	/*
diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.c b/drivers/net/wireless/rt2x00/rt2x00queue.c
index 50590b1420a5..a5d38e8ad9e4 100644
--- a/drivers/net/wireless/rt2x00/rt2x00queue.c
+++ b/drivers/net/wireless/rt2x00/rt2x00queue.c
@@ -635,7 +635,7 @@ static void rt2x00queue_bar_check(struct queue_entry *entry)
 }
 
 int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb,
-			       bool local)
+			       struct ieee80211_sta *sta, bool local)
 {
 	struct ieee80211_tx_info *tx_info;
 	struct queue_entry *entry;
@@ -649,7 +649,7 @@ int rt2x00queue_write_tx_frame(struct data_queue *queue, struct sk_buff *skb,
 	 * after that we are free to use the skb->cb array
 	 * for our information.
 	 */
-	rt2x00queue_create_tx_descriptor(queue->rt2x00dev, skb, &txdesc, NULL);
+	rt2x00queue_create_tx_descriptor(queue->rt2x00dev, skb, &txdesc, sta);
 
 	/*
 	 * All information is retrieved from the skb->cb array,
-- 
cgit 


From 87eb01679a9084bc9a4ba3c92c5692def116fffc Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Fri, 1 Nov 2013 20:39:49 +0100
Subject: ath9k: DFS radar use correct width enum

Use correct width enums when setup
radar_detect_widths for DFS.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index d8643ebabd30..d1c5de0c0261 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -863,8 +863,8 @@ static const struct ieee80211_iface_combination if_comb[] = {
 		.max_interfaces = 1,
 		.num_different_channels = 1,
 		.beacon_int_infra_match = true,
-		.radar_detect_widths =	BIT(NL80211_CHAN_NO_HT) |
-					BIT(NL80211_CHAN_HT20),
+		.radar_detect_widths =	BIT(NL80211_CHAN_WIDTH_20_NOHT) |
+					BIT(NL80211_CHAN_WIDTH_20),
 	}
 };
 
-- 
cgit 


From 4be6718c669bce10e9f709e2be68db2c5e22c4f0 Mon Sep 17 00:00:00 2001
From: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Date: Fri, 1 Nov 2013 21:05:28 +0100
Subject: ath9k: dfs_debug fix possible NULL dereference

Fix possible NULL (sc->dfs_detector) pointer dereference.

Detected by Smatch:
drivers/net/wireless/ath/ath9k/dfs_debug.c:67 read_file_dfs()
error: we previously assumed 'sc->dfs_detector' could be null (see line 47)

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/dfs_debug.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/dfs_debug.c b/drivers/net/wireless/ath/ath9k/dfs_debug.c
index 90b8342d1ed4..8824610c21fb 100644
--- a/drivers/net/wireless/ath/ath9k/dfs_debug.c
+++ b/drivers/net/wireless/ath/ath9k/dfs_debug.c
@@ -44,14 +44,20 @@ static ssize_t read_file_dfs(struct file *file, char __user *user_buf,
 	if (buf == NULL)
 		return -ENOMEM;
 
-	if (sc->dfs_detector)
-		dfs_pool_stats = sc->dfs_detector->get_stats(sc->dfs_detector);
-
 	len += scnprintf(buf + len, size - len, "DFS support for "
 			 "macVersion = 0x%x, macRev = 0x%x: %s\n",
 			 hw_ver->macVersion, hw_ver->macRev,
 			 (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_DFS) ?
 					"enabled" : "disabled");
+
+	if (!sc->dfs_detector) {
+		len += scnprintf(buf + len, size - len,
+				 "DFS detector not enabled\n");
+		goto exit;
+	}
+
+	dfs_pool_stats = sc->dfs_detector->get_stats(sc->dfs_detector);
+
 	len += scnprintf(buf + len, size - len, "Pulse detector statistics:\n");
 	ATH9K_DFS_STAT("pulse events reported   ", pulses_total);
 	ATH9K_DFS_STAT("invalid pulse events    ", pulses_no_dfs);
@@ -76,6 +82,7 @@ static ssize_t read_file_dfs(struct file *file, char __user *user_buf,
 	ATH9K_DFS_POOL_STAT("Seqs. alloc error       ", pseq_alloc_error);
 	ATH9K_DFS_POOL_STAT("Seqs. in use            ", pseq_used);
 
+exit:
 	if (len > size)
 		len = size;
 
-- 
cgit 


From 0c5d63f0ab6728f05ddefa25aff55e31297f95e6 Mon Sep 17 00:00:00 2001
From: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Date: Sat, 2 Nov 2013 14:28:35 -0500
Subject: rtlwifi: Fix endian error in extracting packet type

All of the rtlwifi drivers have an error in the routine that tests if
the data is "special". If it is, the subsequant transmission will be
at the lowest rate to enhance reliability. The 16-bit quantity is
big-endian, but was being extracted in native CPU mode. One of the
effects of this bug is to inhibit association under some conditions
as the TX rate is too high.

Based on suggestions by Joe Perches, the entire routine is rewritten.

One of the local headers contained duplicates of some of the ETH_P_XXX
definitions. These are deleted.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: Stable <stable@vger.kernel.org> [2.6.38+]
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/base.c | 93 ++++++++++++++++---------------------
 drivers/net/wireless/rtlwifi/wifi.h |  6 +--
 2 files changed, 42 insertions(+), 57 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/base.c b/drivers/net/wireless/rtlwifi/base.c
index 9a78e3daf742..ff784072fb42 100644
--- a/drivers/net/wireless/rtlwifi/base.c
+++ b/drivers/net/wireless/rtlwifi/base.c
@@ -37,6 +37,7 @@
 
 #include <linux/ip.h>
 #include <linux/module.h>
+#include <linux/udp.h>
 
 /*
  *NOTICE!!!: This file will be very big, we should
@@ -1074,64 +1075,52 @@ u8 rtl_is_special_data(struct ieee80211_hw *hw, struct sk_buff *skb, u8 is_tx)
 	if (!ieee80211_is_data(fc))
 		return false;
 
+	ip = (const struct iphdr *)(skb->data + mac_hdr_len +
+				    SNAP_SIZE + PROTOC_TYPE_SIZE);
+	ether_type = be16_to_cpup((__be16 *)
+				  (skb->data + mac_hdr_len + SNAP_SIZE));
 
-	ip = (struct iphdr *)((u8 *) skb->data + mac_hdr_len +
-			      SNAP_SIZE + PROTOC_TYPE_SIZE);
-	ether_type = *(u16 *) ((u8 *) skb->data + mac_hdr_len + SNAP_SIZE);
-	/*	ether_type = ntohs(ether_type); */
-
-	if (ETH_P_IP == ether_type) {
-		if (IPPROTO_UDP == ip->protocol) {
-			struct udphdr *udp = (struct udphdr *)((u8 *) ip +
-							       (ip->ihl << 2));
-			if (((((u8 *) udp)[1] == 68) &&
-			     (((u8 *) udp)[3] == 67)) ||
-			    ((((u8 *) udp)[1] == 67) &&
-			     (((u8 *) udp)[3] == 68))) {
-				/*
-				 * 68 : UDP BOOTP client
-				 * 67 : UDP BOOTP server
-				 */
-				RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV),
-					 DBG_DMESG, "dhcp %s !!\n",
-					 is_tx ? "Tx" : "Rx");
-
-				if (is_tx) {
-					rtlpriv->enter_ps = false;
-					schedule_work(&rtlpriv->
-						      works.lps_change_work);
-					ppsc->last_delaylps_stamp_jiffies =
-					    jiffies;
-				}
+	switch (ether_type) {
+	case ETH_P_IP: {
+		struct udphdr *udp;
+		u16 src;
+		u16 dst;
 
-				return true;
-			}
-		}
-	} else if (ETH_P_ARP == ether_type) {
-		if (is_tx) {
-			rtlpriv->enter_ps = false;
-			schedule_work(&rtlpriv->works.lps_change_work);
-			ppsc->last_delaylps_stamp_jiffies = jiffies;
-		}
+		if (ip->protocol != IPPROTO_UDP)
+			return false;
+		udp = (struct udphdr *)((u8 *)ip + (ip->ihl << 2));
+		src = be16_to_cpu(udp->source);
+		dst = be16_to_cpu(udp->dest);
 
-		return true;
-	} else if (ETH_P_PAE == ether_type) {
+		/* If this case involves port 68 (UDP BOOTP client) connecting
+		 * with port 67 (UDP BOOTP server), then return true so that
+		 * the lowest speed is used.
+		 */
+		if (!((src == 68 && dst == 67) || (src == 67 && dst == 68)))
+			return false;
+
+		RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
+			 "dhcp %s !!\n", is_tx ? "Tx" : "Rx");
+		break;
+	}
+	case ETH_P_ARP:
+		break;
+	case ETH_P_PAE:
 		RT_TRACE(rtlpriv, (COMP_SEND | COMP_RECV), DBG_DMESG,
 			 "802.1X %s EAPOL pkt!!\n", is_tx ? "Tx" : "Rx");
-
-		if (is_tx) {
-			rtlpriv->enter_ps = false;
-			schedule_work(&rtlpriv->works.lps_change_work);
-			ppsc->last_delaylps_stamp_jiffies = jiffies;
-		}
-
-		return true;
-	} else if (ETH_P_IPV6 == ether_type) {
-		/* IPv6 */
-		return true;
+		break;
+	case ETH_P_IPV6:
+		/* TODO: Is this right? */
+		return false;
+	default:
+		return false;
 	}
-
-	return false;
+	if (is_tx) {
+		rtlpriv->enter_ps = false;
+		schedule_work(&rtlpriv->works.lps_change_work);
+		ppsc->last_delaylps_stamp_jiffies = jiffies;
+	}
+	return true;
 }
 EXPORT_SYMBOL_GPL(rtl_is_special_data);
 
diff --git a/drivers/net/wireless/rtlwifi/wifi.h b/drivers/net/wireless/rtlwifi/wifi.h
index d224dc3bb092..0c65386fa30d 100644
--- a/drivers/net/wireless/rtlwifi/wifi.h
+++ b/drivers/net/wireless/rtlwifi/wifi.h
@@ -77,11 +77,7 @@
 #define RTL_SLOT_TIME_9				9
 #define RTL_SLOT_TIME_20			20
 
-/*related with tcp/ip. */
-/*if_ehther.h*/
-#define ETH_P_PAE		0x888E	/*Port Access Entity (IEEE 802.1X) */
-#define ETH_P_IP		0x0800	/*Internet Protocol packet */
-#define ETH_P_ARP		0x0806	/*Address Resolution packet */
+/*related to tcp/ip. */
 #define SNAP_SIZE		6
 #define PROTOC_TYPE_SIZE	2
 
-- 
cgit 


From b4ade797668e33b4e8353c2701ce01d7084dfafa Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Tue, 5 Nov 2013 15:15:28 -0600
Subject: rtlwifi: rtl8192se: Fix incorrect signal strength for unassociated AP

The routine that processes received frames was returning the RSSI value for the
signal strength; however, that value is available only for associated APs. As
a result, the strength was the absurd value of 10 dBm. As a result, scans
return incorrect values for the strength, which causes unwanted attempts to roam.

This patch fixes https://bugzilla.kernel.org/show_bug.cgi?id=63881.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Reported-by: Matthieu Baerts <matttbe@gmail.com>
Cc: Stable <stable@vger.kernel.org> [3.0 +]
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/rtl8192se/trx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rtlwifi/rtl8192se/trx.c b/drivers/net/wireless/rtlwifi/rtl8192se/trx.c
index 222d2e792ca6..27efbcdac6a9 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192se/trx.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192se/trx.c
@@ -329,7 +329,7 @@ bool rtl92se_rx_query_desc(struct ieee80211_hw *hw, struct rtl_stats *stats,
 	}
 
 	/*rx_status->qual = stats->signal; */
-	rx_status->signal = stats->rssi + 10;
+	rx_status->signal = stats->recvsignalpower + 10;
 
 	return true;
 }
-- 
cgit 


From 78dbfecb95be4635b995af3bd29fa10013409fcd Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Tue, 5 Nov 2013 15:15:29 -0600
Subject: rtlwifi: rtl8192cu: Fix incorrect signal strength for unassociated AP

The routine that processes received frames was returning the RSSI value for the
signal strength; however, that value is available only for associated APs. As
a result, the strength was the absurd value of 10 dBm. As a result, scans
return incorrect values for the strength, which causes unwanted attempts to roam.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> [2.6.39+]
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/rtl8192cu/trx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
index 25e50ffc44ec..b0c346a9e4b8 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
@@ -349,7 +349,7 @@ bool rtl92cu_rx_query_desc(struct ieee80211_hw *hw,
 						 p_drvinfo);
 	}
 	/*rx_status->qual = stats->signal; */
-	rx_status->signal = stats->rssi + 10;
+	rx_status->signal = stats->recvsignalpower + 10;
 	return true;
 }
 
-- 
cgit 


From 3545f3d5f4af715c914394123ce7725a9cf0a1c4 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Tue, 5 Nov 2013 15:15:30 -0600
Subject: rtlwifi: rtl8192de: Fix incorrect signal strength for unassociated AP

The routine that processes received frames was returning the RSSI value for the
signal strength; however, that value is available only for associated APs. As
a result, the strength was the absurd value of 10 dBm. As a result, scans
return incorrect values for the strength, which causes unwanted attempts to roam.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org> [3.1+]
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/rtl8192de/trx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rtlwifi/rtl8192de/trx.c b/drivers/net/wireless/rtlwifi/rtl8192de/trx.c
index 945ddecf90c9..0eb0f4ae5920 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192de/trx.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192de/trx.c
@@ -525,7 +525,7 @@ bool rtl92de_rx_query_desc(struct ieee80211_hw *hw,	struct rtl_stats *stats,
 						   p_drvinfo);
 	}
 	/*rx_status->qual = stats->signal; */
-	rx_status->signal = stats->rssi + 10;
+	rx_status->signal = stats->recvsignalpower + 10;
 	return true;
 }
 
-- 
cgit 


From d03b4aa77e1187b77dfe37d14a923547f00baa66 Mon Sep 17 00:00:00 2001
From: Avinash Patil <patila@marvell.com>
Date: Tue, 5 Nov 2013 15:01:44 -0800
Subject: mwifiex: correct packet length for packets from SDIO interface

While receiving a packet on SDIO interface, we allocate skb with
size multiple of SDIO block size. We need to resize this skb
after RX using packet length from RX header.

Cc: <stable@vger.kernel.org>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/mwifiex/sdio.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c
index 1576104e3d95..9bf8898743ab 100644
--- a/drivers/net/wireless/mwifiex/sdio.c
+++ b/drivers/net/wireless/mwifiex/sdio.c
@@ -1029,7 +1029,10 @@ static int mwifiex_decode_rx_packet(struct mwifiex_adapter *adapter,
 				    struct sk_buff *skb, u32 upld_typ)
 {
 	u8 *cmd_buf;
+	__le16 *curr_ptr = (__le16 *)skb->data;
+	u16 pkt_len = le16_to_cpu(*curr_ptr);
 
+	skb_trim(skb, pkt_len);
 	skb_pull(skb, INTF_HEADER_LEN);
 
 	switch (upld_typ) {
-- 
cgit 


From 8d93f1f309d38b65fce0b9f0de91ba6c96990c07 Mon Sep 17 00:00:00 2001
From: Ujjal Roy <royujjal@gmail.com>
Date: Tue, 5 Nov 2013 15:01:45 -0800
Subject: mwifiex: fix wrong eth_hdr usage for bridged packets in AP mode

The eth_hdr is never defined in this driver but it gets compiled
without any warning/error because kernel has defined eth_hdr.

Fix it by defining our own p_ethhdr and use it instead of eth_hdr.

Cc: <stable@vger.kernel.org> # 3.7+
Signed-off-by: Ujjal Roy <royujjal@gmail.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/mwifiex/uap_txrx.c | 29 ++++++++++++++++++++++++++---
 1 file changed, 26 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/mwifiex/uap_txrx.c b/drivers/net/wireless/mwifiex/uap_txrx.c
index 1cfe5a738c47..92f76d655e6c 100644
--- a/drivers/net/wireless/mwifiex/uap_txrx.c
+++ b/drivers/net/wireless/mwifiex/uap_txrx.c
@@ -97,6 +97,7 @@ static void mwifiex_uap_queue_bridged_pkt(struct mwifiex_private *priv,
 	struct mwifiex_txinfo *tx_info;
 	int hdr_chop;
 	struct timeval tv;
+	struct ethhdr *p_ethhdr;
 	u8 rfc1042_eth_hdr[ETH_ALEN] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00 };
 
 	uap_rx_pd = (struct uap_rxpd *)(skb->data);
@@ -112,14 +113,36 @@ static void mwifiex_uap_queue_bridged_pkt(struct mwifiex_private *priv,
 	}
 
 	if (!memcmp(&rx_pkt_hdr->rfc1042_hdr,
-		    rfc1042_eth_hdr, sizeof(rfc1042_eth_hdr)))
+		    rfc1042_eth_hdr, sizeof(rfc1042_eth_hdr))) {
+		/* Replace the 803 header and rfc1042 header (llc/snap) with
+		 * an Ethernet II header, keep the src/dst and snap_type
+		 * (ethertype).
+		 *
+		 * The firmware only passes up SNAP frames converting all RX
+		 * data from 802.11 to 802.2/LLC/SNAP frames.
+		 *
+		 * To create the Ethernet II, just move the src, dst address
+		 * right before the snap_type.
+		 */
+		p_ethhdr = (struct ethhdr *)
+			((u8 *)(&rx_pkt_hdr->eth803_hdr)
+			 + sizeof(rx_pkt_hdr->eth803_hdr)
+			 + sizeof(rx_pkt_hdr->rfc1042_hdr)
+			 - sizeof(rx_pkt_hdr->eth803_hdr.h_dest)
+			 - sizeof(rx_pkt_hdr->eth803_hdr.h_source)
+			 - sizeof(rx_pkt_hdr->rfc1042_hdr.snap_type));
+		memcpy(p_ethhdr->h_source, rx_pkt_hdr->eth803_hdr.h_source,
+		       sizeof(p_ethhdr->h_source));
+		memcpy(p_ethhdr->h_dest, rx_pkt_hdr->eth803_hdr.h_dest,
+		       sizeof(p_ethhdr->h_dest));
 		/* Chop off the rxpd + the excess memory from
 		 * 802.2/llc/snap header that was removed.
 		 */
-		hdr_chop = (u8 *)eth_hdr - (u8 *)uap_rx_pd;
-	else
+		hdr_chop = (u8 *)p_ethhdr - (u8 *)uap_rx_pd;
+	} else {
 		/* Chop off the rxpd */
 		hdr_chop = (u8 *)&rx_pkt_hdr->eth803_hdr - (u8 *)uap_rx_pd;
+	}
 
 	/* Chop off the leading header bytes so the it points
 	 * to the start of either the reconstructed EthII frame
-- 
cgit 


From 876efcf05c3aa582de5efefa7dd6fbb731b4d085 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 6 Nov 2013 10:41:28 +0300
Subject: wcn36xx: harmless memory corruption bug in debugfs

On 64 bit systems we write past the end of the arg[] array.

Fixes: 8e84c2582169 ('wcn36xx: mac80211 driver for Qualcomm WCN3660/WCN3680 hardware')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/wcn36xx/debug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/debug.c b/drivers/net/wireless/ath/wcn36xx/debug.c
index 5b84f7ae0b1e..ef44a2da644d 100644
--- a/drivers/net/wireless/ath/wcn36xx/debug.c
+++ b/drivers/net/wireless/ath/wcn36xx/debug.c
@@ -126,7 +126,7 @@ static ssize_t write_file_dump(struct file *file,
 		if (begin == NULL)
 			break;
 
-		if (kstrtoul(begin, 0, (unsigned long *)(arg + i)) != 0)
+		if (kstrtou32(begin, 0, &arg[i]) != 0)
 			break;
 	}
 
-- 
cgit 


From 67c1e4a53b17894e6a24f95057cc374c4be051cb Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Mon, 11 Nov 2013 16:33:18 -0300
Subject: perf tests: Use lower sample_freq in sw clock event period test

We were using it at 10 kHz, which doesn't work in machines where somehow
the max freq was auto reduced by the kernel:

[root@ssdandy ~]# perf test 19
19: Test software clock events have valid period values    : FAILED!
[root@ssdandy ~]# perf test -v 19
19: Test software clock events have valid period values    :
--- start ---
Couldn't open evlist: Invalid argument
---- end ----
Test software clock events have valid period values: FAILED!
[root@ssdandy ~]#

[root@ssdandy ~]# cat /proc/sys/kernel/perf_event_max_sample_rate
7000

Reducing it to 500 Hz should be good enough for this test and also
shouldn't affect what it is testing.

But warn the user if it fails, informing the knob and the freq tried.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-548rhj1uo6xbwnxa95kw3hqe@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/tests/sw-clock.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/sw-clock.c b/tools/perf/tests/sw-clock.c
index ed777728dfe7..93a7139ff5f7 100644
--- a/tools/perf/tests/sw-clock.c
+++ b/tools/perf/tests/sw-clock.c
@@ -34,7 +34,7 @@ static int __test__sw_clock_freq(enum perf_sw_ids clock_id)
 		.freq = 1,
 	};
 
-	attr.sample_freq = 10000;
+	attr.sample_freq = 500;
 
 	evlist = perf_evlist__new();
 	if (evlist == NULL) {
@@ -58,8 +58,11 @@ static int __test__sw_clock_freq(enum perf_sw_ids clock_id)
 	}
 
 	if (perf_evlist__open(evlist)) {
+		const char *knob = "/proc/sys/kernel/perf_event_max_sample_rate";
+
 		err = -errno;
-		pr_debug("Couldn't open evlist: %s\n", strerror(errno));
+		pr_debug("Couldn't open evlist: %s\nHint: check %s, using %" PRIu64 " in this test.\n",
+			 strerror(errno), knob, (u64)attr.sample_freq);
 		goto out_delete_maps;
 	}
 
-- 
cgit 


From 7b3d2fb92067bcb29f0f085a9fa9fa64920a6646 Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Mon, 11 Nov 2013 12:13:45 +0800
Subject: mtd: gpmi: fix kernel BUG due to racing DMA operations

[1] The gpmi uses the nand_command_lp to issue the commands to NAND chips.
    The gpmi issues a DMA operation with gpmi_cmd_ctrl when it handles
    a NAND_CMD_NONE control command. So when we read a page(NAND_CMD_READ0)
    from the NAND, we may send two DMA operations back-to-back.

    If we do not serialize the two DMA operations, we will meet a bug when

    1.1) we enable CONFIG_DMA_API_DEBUG, CONFIG_DMADEVICES_DEBUG,
         and CONFIG_DEBUG_SG.

    1.2) Use the following commands in an UART console and a SSH console:
         cmd 1: while true;do dd if=/dev/mtd0 of=/dev/null;done
         cmd 1: while true;do dd if=/dev/mmcblk0 of=/dev/null;done

    The kernel log shows below:
    -----------------------------------------------------------------
    kernel BUG at lib/scatterlist.c:28!
    Unable to handle kernel NULL pointer dereference at virtual address 00000000
      .........................
    [<80044a0c>] (__bug+0x18/0x24) from [<80249b74>] (sg_next+0x48/0x4c)
    [<80249b74>] (sg_next+0x48/0x4c) from [<80255398>] (debug_dma_unmap_sg+0x170/0x1a4)
    [<80255398>] (debug_dma_unmap_sg+0x170/0x1a4) from [<8004af58>] (dma_unmap_sg+0x14/0x6c)
    [<8004af58>] (dma_unmap_sg+0x14/0x6c) from [<8027e594>] (mxs_dma_tasklet+0x18/0x1c)
    [<8027e594>] (mxs_dma_tasklet+0x18/0x1c) from [<8007d444>] (tasklet_action+0x114/0x164)
    -----------------------------------------------------------------

    1.3) Assume the two DMA operations is X (first) and Y (second).

         The root cause of the bug:
	   Assume process P issues DMA X, and sleep on the completion
	 @this->dma_done. X's tasklet callback is dma_irq_callback. It firstly
	 wake up the process sleeping on the completion @this->dma_done,
	 and then trid to unmap the scatterlist S. The waked process P will
	 issue Y in another ARM core. Y initializes S->sg_magic to zero
	 with sg_init_one(), while dma_irq_callback is unmapping S at the same
	 time.

	 See the diagram:

                   ARM core 0              |         ARM core 1
	 -------------------------------------------------------------
         (P issues DMA X, then sleep)  --> |
                                           |
         (X's tasklet wakes P)         --> |
                                           |
                                           | <-- (P begin to issue DMA Y)
                                           |
         (X's tasklet unmap the            |
      scatterlist S with dma_unmap_sg) --> | <-- (Y calls sg_init_one() to init
                                           |      scatterlist S)
                                           |

[2] This patch serialize both the X and Y in the following way:
     Unmap the DMA scatterlist S firstly, and wake up the process at the end
     of the DMA callback, in such a way, Y will be executed after X.

     After this patch:

                   ARM core 0              |         ARM core 1
	 -------------------------------------------------------------
         (P issues DMA X, then sleep)  --> |
                                           |
         (X's tasklet unmap the            |
      scatterlist S with dma_unmap_sg) --> |
                                           |
         (X's tasklet wakes P)         --> |
                                           |
                                           | <-- (P begin to issue DMA Y)
                                           |
                                           | <-- (Y calls sg_init_one() to init
                                           |     scatterlist S)
                                           |

Cc: stable@vger.kernel.org # 3.2
Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index 3d642b5c3a79..c7243dca90fd 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -394,8 +394,6 @@ static void dma_irq_callback(void *param)
 	struct gpmi_nand_data *this = param;
 	struct completion *dma_c = &this->dma_done;
 
-	complete(dma_c);
-
 	switch (this->dma_type) {
 	case DMA_FOR_COMMAND:
 		dma_unmap_sg(this->dev, &this->cmd_sgl, 1, DMA_TO_DEVICE);
@@ -420,6 +418,8 @@ static void dma_irq_callback(void *param)
 	default:
 		pr_err("in wrong DMA operation.\n");
 	}
+
+	complete(dma_c);
 }
 
 int start_dma_without_bch_irq(struct gpmi_nand_data *this,
-- 
cgit 


From 2d22c7dded7dcf6feaede2d6f476fd991426980a Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Fri, 8 Nov 2013 11:45:25 +0530
Subject: ath9k: Use correct PCIE initvals for AR9485

Currently, the PLL is turned off for AR9485 when
switching to a low power state, but AR9485 has an issue
where the card will become unresponsive if left idle
for a long time without any traffic. To fix this,
force the PLL to always be on using a different initval
array, ar9485_1_1_pll_on_cdr_on_clkreq_disable_L1.

This is done for most of the AR9485 based cards
like HB125, WB225 etc. but certain models require the
feature to be turned off. Identify such cards and use
default values for them.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ar9003_hw.c       | 22 +++---
 drivers/net/wireless/ath/ath9k/ar9485_initvals.h | 42 ++++--------
 drivers/net/wireless/ath/ath9k/ath9k.h           | 19 +++---
 drivers/net/wireless/ath/ath9k/hw.h              |  1 +
 drivers/net/wireless/ath/ath9k/init.c            |  5 ++
 drivers/net/wireless/ath/ath9k/pci.c             | 87 ++++++++++++++++++++++++
 6 files changed, 128 insertions(+), 48 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_hw.c b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
index b07f164d65cf..20e49095db2a 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_hw.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_hw.c
@@ -187,17 +187,17 @@ static void ar9003_hw_init_mode_regs(struct ath_hw *ah)
 		INIT_INI_ARRAY(&ah->iniCckfirJapan2484,
 			       ar9485_1_1_baseband_core_txfir_coeff_japan_2484);
 
-		/* Load PCIE SERDES settings from INI */
-
-		/* Awake Setting */
-
-		INIT_INI_ARRAY(&ah->iniPcieSerdes,
-				ar9485_1_1_pcie_phy_clkreq_disable_L1);
-
-		/* Sleep Setting */
-
-		INIT_INI_ARRAY(&ah->iniPcieSerdesLowPower,
-				ar9485_1_1_pcie_phy_clkreq_disable_L1);
+		if (ah->config.no_pll_pwrsave) {
+			INIT_INI_ARRAY(&ah->iniPcieSerdes,
+				       ar9485_1_1_pcie_phy_clkreq_disable_L1);
+			INIT_INI_ARRAY(&ah->iniPcieSerdesLowPower,
+				       ar9485_1_1_pcie_phy_clkreq_disable_L1);
+		} else {
+			INIT_INI_ARRAY(&ah->iniPcieSerdes,
+				       ar9485_1_1_pll_on_cdr_on_clkreq_disable_L1);
+			INIT_INI_ARRAY(&ah->iniPcieSerdesLowPower,
+				       ar9485_1_1_pll_on_cdr_on_clkreq_disable_L1);
+		}
 	} else if (AR_SREV_9462_21(ah)) {
 		INIT_INI_ARRAY(&ah->iniMac[ATH_INI_CORE],
 			       ar9462_2p1_mac_core);
diff --git a/drivers/net/wireless/ath/ath9k/ar9485_initvals.h b/drivers/net/wireless/ath/ath9k/ar9485_initvals.h
index 6f899c692647..7c1845221e1c 100644
--- a/drivers/net/wireless/ath/ath9k/ar9485_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9485_initvals.h
@@ -32,13 +32,6 @@ static const u32 ar9485_1_1_mac_postamble[][5] = {
 	{0x00008318, 0x00003e80, 0x00007d00, 0x00006880, 0x00003440},
 };
 
-static const u32 ar9485_1_1_pcie_phy_pll_on_clkreq_disable_L1[][2] = {
-	/* Addr      allmodes  */
-	{0x00018c00, 0x18012e5e},
-	{0x00018c04, 0x000801d8},
-	{0x00018c08, 0x0000080c},
-};
-
 static const u32 ar9485Common_wo_xlna_rx_gain_1_1[][2] = {
 	/* Addr      allmodes  */
 	{0x00009e00, 0x037216a0},
@@ -1101,20 +1094,6 @@ static const u32 ar9485_common_rx_gain_1_1[][2] = {
 	{0x0000a1fc, 0x00000296},
 };
 
-static const u32 ar9485_1_1_pcie_phy_pll_on_clkreq_enable_L1[][2] = {
-	/* Addr      allmodes  */
-	{0x00018c00, 0x18052e5e},
-	{0x00018c04, 0x000801d8},
-	{0x00018c08, 0x0000080c},
-};
-
-static const u32 ar9485_1_1_pcie_phy_clkreq_enable_L1[][2] = {
-	/* Addr      allmodes  */
-	{0x00018c00, 0x18053e5e},
-	{0x00018c04, 0x000801d8},
-	{0x00018c08, 0x0000080c},
-};
-
 static const u32 ar9485_1_1_soc_preamble[][2] = {
 	/* Addr      allmodes  */
 	{0x00004014, 0xba280400},
@@ -1173,13 +1152,6 @@ static const u32 ar9485_1_1_baseband_postamble[][5] = {
 	{0x0000be18, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
 };
 
-static const u32 ar9485_1_1_pcie_phy_clkreq_disable_L1[][2] = {
-	/* Addr      allmodes  */
-	{0x00018c00, 0x18013e5e},
-	{0x00018c04, 0x000801d8},
-	{0x00018c08, 0x0000080c},
-};
-
 static const u32 ar9485_1_1_radio_postamble[][2] = {
 	/* Addr      allmodes  */
 	{0x0001609c, 0x0b283f31},
@@ -1358,4 +1330,18 @@ static const u32 ar9485_1_1_baseband_core_txfir_coeff_japan_2484[][2] = {
 	{0x0000a3a0, 0xca9228ee},
 };
 
+static const u32 ar9485_1_1_pcie_phy_clkreq_disable_L1[][2] = {
+	/* Addr      allmodes  */
+	{0x00018c00, 0x18013e5e},
+	{0x00018c04, 0x000801d8},
+	{0x00018c08, 0x0000080c},
+};
+
+static const u32 ar9485_1_1_pll_on_cdr_on_clkreq_disable_L1[][2] = {
+	/* Addr      allmodes  */
+	{0x00018c00, 0x1801265e},
+	{0x00018c04, 0x000801d8},
+	{0x00018c08, 0x0000080c},
+};
+
 #endif /* INITVALS_9485_H */
diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index e7a38d844a6a..60a5da53668f 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -632,15 +632,16 @@ void ath_ant_comb_scan(struct ath_softc *sc, struct ath_rx_status *rs);
 /* Main driver core */
 /********************/
 
-#define ATH9K_PCI_CUS198      0x0001
-#define ATH9K_PCI_CUS230      0x0002
-#define ATH9K_PCI_CUS217      0x0004
-#define ATH9K_PCI_CUS252      0x0008
-#define ATH9K_PCI_WOW         0x0010
-#define ATH9K_PCI_BT_ANT_DIV  0x0020
-#define ATH9K_PCI_D3_L1_WAR   0x0040
-#define ATH9K_PCI_AR9565_1ANT 0x0080
-#define ATH9K_PCI_AR9565_2ANT 0x0100
+#define ATH9K_PCI_CUS198          0x0001
+#define ATH9K_PCI_CUS230          0x0002
+#define ATH9K_PCI_CUS217          0x0004
+#define ATH9K_PCI_CUS252          0x0008
+#define ATH9K_PCI_WOW             0x0010
+#define ATH9K_PCI_BT_ANT_DIV      0x0020
+#define ATH9K_PCI_D3_L1_WAR       0x0040
+#define ATH9K_PCI_AR9565_1ANT     0x0080
+#define ATH9K_PCI_AR9565_2ANT     0x0100
+#define ATH9K_PCI_NO_PLL_PWRSAVE  0x0200
 
 /*
  * Default cache line size, in bytes.
diff --git a/drivers/net/wireless/ath/ath9k/hw.h b/drivers/net/wireless/ath/ath9k/hw.h
index 9ea24f1cba73..a2c9a5dbac6b 100644
--- a/drivers/net/wireless/ath/ath9k/hw.h
+++ b/drivers/net/wireless/ath/ath9k/hw.h
@@ -316,6 +316,7 @@ struct ath9k_ops_config {
 	u32 ant_ctrl_comm2g_switch_enable;
 	bool xatten_margin_cfg;
 	bool alt_mingainidx;
+	bool no_pll_pwrsave;
 };
 
 enum ath9k_int {
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index d1c5de0c0261..710192ed27ed 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -609,6 +609,11 @@ static void ath9k_init_platform(struct ath_softc *sc)
 		ah->config.pcie_waen = 0x0040473b;
 		ath_info(common, "Enable WAR for ASPM D3/L1\n");
 	}
+
+	if (sc->driver_data & ATH9K_PCI_NO_PLL_PWRSAVE) {
+		ah->config.no_pll_pwrsave = true;
+		ath_info(common, "Disable PLL PowerSave\n");
+	}
 }
 
 static void ath9k_eeprom_request_cb(const struct firmware *eeprom_blob,
diff --git a/drivers/net/wireless/ath/ath9k/pci.c b/drivers/net/wireless/ath/ath9k/pci.c
index 7e4c2524b630..b5656fce4ff5 100644
--- a/drivers/net/wireless/ath/ath9k/pci.c
+++ b/drivers/net/wireless/ath/ath9k/pci.c
@@ -195,6 +195,93 @@ static DEFINE_PCI_DEVICE_TABLE(ath_pci_id_table) = {
 			 0x3219),
 	  .driver_data = ATH9K_PCI_BT_ANT_DIV },
 
+	/* AR9485 cards with PLL power-save disabled by default. */
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 PCI_VENDOR_ID_AZWAVE,
+			 0x2C97),
+	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 PCI_VENDOR_ID_AZWAVE,
+			 0x2100),
+	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 0x1C56, /* ASKEY */
+			 0x4001),
+	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 0x11AD, /* LITEON */
+			 0x6627),
+	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 0x11AD, /* LITEON */
+			 0x6628),
+	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 PCI_VENDOR_ID_FOXCONN,
+			 0xE04E),
+	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 PCI_VENDOR_ID_FOXCONN,
+			 0xE04F),
+	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 0x144F, /* ASKEY */
+			 0x7197),
+	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 0x1B9A, /* XAVI */
+			 0x2000),
+	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 0x1B9A, /* XAVI */
+			 0x2001),
+	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 PCI_VENDOR_ID_AZWAVE,
+			 0x1186),
+	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 PCI_VENDOR_ID_AZWAVE,
+			 0x1F86),
+	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 PCI_VENDOR_ID_AZWAVE,
+			 0x1195),
+	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 PCI_VENDOR_ID_AZWAVE,
+			 0x1F95),
+	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 0x1B9A, /* XAVI */
+			 0x1C00),
+	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 0x1B9A, /* XAVI */
+			 0x1C01),
+	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
+	{ PCI_DEVICE_SUB(PCI_VENDOR_ID_ATHEROS,
+			 0x0032,
+			 PCI_VENDOR_ID_ASUSTEK,
+			 0x850D),
+	  .driver_data = ATH9K_PCI_NO_PLL_PWRSAVE },
+
 	{ PCI_VDEVICE(ATHEROS, 0x0032) }, /* PCI-E  AR9485 */
 	{ PCI_VDEVICE(ATHEROS, 0x0033) }, /* PCI-E  AR9580 */
 
-- 
cgit 


From 1221c25a33c8b08a65faa2b4adeb9216ea93a5e7 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 8 Nov 2013 17:34:37 +0000
Subject: wcn36xx: Add missing unlock before return

Add the missing unlock before return from function
wcn36xx_smd_update_proberesp_tmpl() in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/wcn36xx/smd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c
index f8c3a10510c2..04df70beba42 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.c
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c
@@ -1327,7 +1327,8 @@ int wcn36xx_smd_update_proberesp_tmpl(struct wcn36xx *wcn,
 	if (skb->len > BEACON_TEMPLATE_SIZE) {
 		wcn36xx_warn("probe response template is too big: %d\n",
 			     skb->len);
-		return -E2BIG;
+		ret = -E2BIG;
+		goto out;
 	}
 
 	msg.probe_resp_template_len = skb->len;
-- 
cgit 


From 95b48c2cdae7645c14ca2cd73b457c7c175371ad Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 8 Nov 2013 17:34:38 +0000
Subject: wcn36xx: missing unlocks on error paths

There are several places which are missing unlocks.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/wcn36xx/smd.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c
index 04df70beba42..de9eb2cfbf4b 100644
--- a/drivers/net/wireless/ath/wcn36xx/smd.c
+++ b/drivers/net/wireless/ath/wcn36xx/smd.c
@@ -1286,7 +1286,8 @@ int wcn36xx_smd_send_beacon(struct wcn36xx *wcn, struct ieee80211_vif *vif,
 	} else {
 		wcn36xx_err("Beacon is to big: beacon size=%d\n",
 			      msg_body.beacon_length);
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto out;
 	}
 	memcpy(msg_body.bssid, vif->addr, ETH_ALEN);
 
@@ -1607,7 +1608,8 @@ int wcn36xx_smd_keep_alive_req(struct wcn36xx *wcn,
 		/* TODO: it also support ARP response type */
 	} else {
 		wcn36xx_warn("unknow keep alive packet type %d\n", packet_type);
-		return -EINVAL;
+		ret = -EINVAL;
+		goto out;
 	}
 
 	PREPARE_HAL_BUF(wcn->hal_buf, msg_body);
-- 
cgit 


From 8e3ffa471091c560deb6738ed9ab7445b7a5fd04 Mon Sep 17 00:00:00 2001
From: Dan Williams <dcbw@redhat.com>
Date: Fri, 8 Nov 2013 13:39:44 -0600
Subject: prism54: set netdev type to "wlan"

Userspace uses the netdev devtype for stuff like device naming and type
detection.  Be nice and set it.  Remove the pointless #if/#endif around
SET_NETDEV_DEV too.

Signed-off-by: Dan Williams <dcbw@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/prism54/islpci_dev.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/prism54/islpci_dev.c b/drivers/net/wireless/prism54/islpci_dev.c
index 41a16d30c79c..e05d9b4c8317 100644
--- a/drivers/net/wireless/prism54/islpci_dev.c
+++ b/drivers/net/wireless/prism54/islpci_dev.c
@@ -811,6 +811,10 @@ static const struct net_device_ops islpci_netdev_ops = {
 	.ndo_validate_addr	= eth_validate_addr,
 };
 
+static struct device_type wlan_type = {
+	.name	= "wlan",
+};
+
 struct net_device *
 islpci_setup(struct pci_dev *pdev)
 {
@@ -821,9 +825,8 @@ islpci_setup(struct pci_dev *pdev)
 		return ndev;
 
 	pci_set_drvdata(pdev, ndev);
-#if defined(SET_NETDEV_DEV)
 	SET_NETDEV_DEV(ndev, &pdev->dev);
-#endif
+	SET_NETDEV_DEVTYPE(ndev, &wlan_type);
 
 	/* setup the structure members */
 	ndev->base_addr = pci_resource_start(pdev, 0);
-- 
cgit 


From eb85d94bdd91fb4dbea4ee465d4349cbea4eaaca Mon Sep 17 00:00:00 2001
From: Pavel Shilovsky <piastry@etersoft.ru>
Date: Wed, 23 Oct 2013 17:49:47 +0400
Subject: CIFS: Fix symbolic links usage

Now we treat any reparse point as a symbolic link and map it to a Unix
one that is not true in a common case due to many reparse point types
supported by SMB servers.

Distinguish reparse point types into two groups:
1) that can be accessed directly through a reparse point
(junctions, deduplicated files, NFS symlinks);
2) that need to be processed manually (Windows symbolic links, DFS);

and map only Windows symbolic links to Unix ones.

Cc: <stable@vger.kernel.org>
Acked-by: Jeff Layton <jlayton@redhat.com>
Reported-and-tested-by: Joao Correia <joaomiguelcorreia@gmail.com>
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/cifsglob.h  |  2 +-
 fs/cifs/inode.c     | 23 +++++++++++++----------
 fs/cifs/readdir.c   | 40 ++++++++--------------------------------
 fs/cifs/smb1ops.c   | 21 ++++++++++++++++++++-
 fs/cifs/smb2inode.c | 16 ++++++++++++----
 fs/cifs/smb2proto.h |  2 +-
 6 files changed, 55 insertions(+), 49 deletions(-)

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 26b1c1dc93f6..cddb807addde 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -261,7 +261,7 @@ struct smb_version_operations {
 	/* query path data from the server */
 	int (*query_path_info)(const unsigned int, struct cifs_tcon *,
 			       struct cifs_sb_info *, const char *,
-			       FILE_ALL_INFO *, bool *);
+			       FILE_ALL_INFO *, bool *, bool *);
 	/* query file data from the server */
 	int (*query_file_info)(const unsigned int, struct cifs_tcon *,
 			       struct cifs_fid *, FILE_ALL_INFO *);
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 867b7cdc794a..36f9ebb93ceb 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -542,7 +542,8 @@ static int cifs_sfu_mode(struct cifs_fattr *fattr, const unsigned char *path,
 /* Fill a cifs_fattr struct with info from FILE_ALL_INFO */
 static void
 cifs_all_info_to_fattr(struct cifs_fattr *fattr, FILE_ALL_INFO *info,
-		       struct cifs_sb_info *cifs_sb, bool adjust_tz)
+		       struct cifs_sb_info *cifs_sb, bool adjust_tz,
+		       bool symlink)
 {
 	struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
 
@@ -569,7 +570,11 @@ cifs_all_info_to_fattr(struct cifs_fattr *fattr, FILE_ALL_INFO *info,
 	fattr->cf_createtime = le64_to_cpu(info->CreationTime);
 
 	fattr->cf_nlink = le32_to_cpu(info->NumberOfLinks);
-	if (fattr->cf_cifsattrs & ATTR_DIRECTORY) {
+
+	if (symlink) {
+		fattr->cf_mode = S_IFLNK;
+		fattr->cf_dtype = DT_LNK;
+	} else if (fattr->cf_cifsattrs & ATTR_DIRECTORY) {
 		fattr->cf_mode = S_IFDIR | cifs_sb->mnt_dir_mode;
 		fattr->cf_dtype = DT_DIR;
 		/*
@@ -578,10 +583,6 @@ cifs_all_info_to_fattr(struct cifs_fattr *fattr, FILE_ALL_INFO *info,
 		 */
 		if (!tcon->unix_ext)
 			fattr->cf_flags |= CIFS_FATTR_UNKNOWN_NLINK;
-	} else if (fattr->cf_cifsattrs & ATTR_REPARSE) {
-		fattr->cf_mode = S_IFLNK;
-		fattr->cf_dtype = DT_LNK;
-		fattr->cf_nlink = le32_to_cpu(info->NumberOfLinks);
 	} else {
 		fattr->cf_mode = S_IFREG | cifs_sb->mnt_file_mode;
 		fattr->cf_dtype = DT_REG;
@@ -626,7 +627,8 @@ cifs_get_file_info(struct file *filp)
 	rc = server->ops->query_file_info(xid, tcon, &cfile->fid, &find_data);
 	switch (rc) {
 	case 0:
-		cifs_all_info_to_fattr(&fattr, &find_data, cifs_sb, false);
+		cifs_all_info_to_fattr(&fattr, &find_data, cifs_sb, false,
+				       false);
 		break;
 	case -EREMOTE:
 		cifs_create_dfs_fattr(&fattr, inode->i_sb);
@@ -673,6 +675,7 @@ cifs_get_inode_info(struct inode **inode, const char *full_path,
 	bool adjust_tz = false;
 	struct cifs_fattr fattr;
 	struct cifs_search_info *srchinf = NULL;
+	bool symlink = false;
 
 	tlink = cifs_sb_tlink(cifs_sb);
 	if (IS_ERR(tlink))
@@ -702,12 +705,12 @@ cifs_get_inode_info(struct inode **inode, const char *full_path,
 		}
 		data = (FILE_ALL_INFO *)buf;
 		rc = server->ops->query_path_info(xid, tcon, cifs_sb, full_path,
-						  data, &adjust_tz);
+						  data, &adjust_tz, &symlink);
 	}
 
 	if (!rc) {
-		cifs_all_info_to_fattr(&fattr, (FILE_ALL_INFO *)data, cifs_sb,
-				       adjust_tz);
+		cifs_all_info_to_fattr(&fattr, data, cifs_sb, adjust_tz,
+				       symlink);
 	} else if (rc == -EREMOTE) {
 		cifs_create_dfs_fattr(&fattr, sb);
 		rc = 0;
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 53a75f3d0179..5940ecabbe6a 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -134,22 +134,6 @@ out:
 	dput(dentry);
 }
 
-/*
- * Is it possible that this directory might turn out to be a DFS referral
- * once we go to try and use it?
- */
-static bool
-cifs_dfs_is_possible(struct cifs_sb_info *cifs_sb)
-{
-#ifdef CONFIG_CIFS_DFS_UPCALL
-	struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
-
-	if (tcon->Flags & SMB_SHARE_IS_IN_DFS)
-		return true;
-#endif
-	return false;
-}
-
 static void
 cifs_fill_common_info(struct cifs_fattr *fattr, struct cifs_sb_info *cifs_sb)
 {
@@ -159,27 +143,19 @@ cifs_fill_common_info(struct cifs_fattr *fattr, struct cifs_sb_info *cifs_sb)
 	if (fattr->cf_cifsattrs & ATTR_DIRECTORY) {
 		fattr->cf_mode = S_IFDIR | cifs_sb->mnt_dir_mode;
 		fattr->cf_dtype = DT_DIR;
-		/*
-		 * Windows CIFS servers generally make DFS referrals look
-		 * like directories in FIND_* responses with the reparse
-		 * attribute flag also set (since DFS junctions are
-		 * reparse points). We must revalidate at least these
-		 * directory inodes before trying to use them (if
-		 * they are DFS we will get PATH_NOT_COVERED back
-		 * when queried directly and can then try to connect
-		 * to the DFS target)
-		 */
-		if (cifs_dfs_is_possible(cifs_sb) &&
-		    (fattr->cf_cifsattrs & ATTR_REPARSE))
-			fattr->cf_flags |= CIFS_FATTR_NEED_REVAL;
-	} else if (fattr->cf_cifsattrs & ATTR_REPARSE) {
-		fattr->cf_mode = S_IFLNK;
-		fattr->cf_dtype = DT_LNK;
 	} else {
 		fattr->cf_mode = S_IFREG | cifs_sb->mnt_file_mode;
 		fattr->cf_dtype = DT_REG;
 	}
 
+	/*
+	 * We need to revalidate it further to make a decision about whether it
+	 * is a symbolic link, DFS referral or a reparse point with a direct
+	 * access like junctions, deduplicated files, NFS symlinks.
+	 */
+	if (fattr->cf_cifsattrs & ATTR_REPARSE)
+		fattr->cf_flags |= CIFS_FATTR_NEED_REVAL;
+
 	/* non-unix readdir doesn't provide nlink */
 	fattr->cf_flags |= CIFS_FATTR_UNKNOWN_NLINK;
 
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index 384cffe42850..5f5ba0dc2ee1 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -534,10 +534,12 @@ cifs_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon,
 static int
 cifs_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
 		     struct cifs_sb_info *cifs_sb, const char *full_path,
-		     FILE_ALL_INFO *data, bool *adjustTZ)
+		     FILE_ALL_INFO *data, bool *adjustTZ, bool *symlink)
 {
 	int rc;
 
+	*symlink = false;
+
 	/* could do find first instead but this returns more info */
 	rc = CIFSSMBQPathInfo(xid, tcon, full_path, data, 0 /* not legacy */,
 			      cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
@@ -554,6 +556,23 @@ cifs_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
 						CIFS_MOUNT_MAP_SPECIAL_CHR);
 		*adjustTZ = true;
 	}
+
+	if (!rc && (le32_to_cpu(data->Attributes) & ATTR_REPARSE)) {
+		int tmprc;
+		int oplock = 0;
+		__u16 netfid;
+
+		/* Need to check if this is a symbolic link or not */
+		tmprc = CIFSSMBOpen(xid, tcon, full_path, FILE_OPEN,
+				    FILE_READ_ATTRIBUTES, 0, &netfid, &oplock,
+				    NULL, cifs_sb->local_nls,
+			cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
+		if (tmprc == -EOPNOTSUPP)
+			*symlink = true;
+		else
+			CIFSSMBClose(xid, tcon, netfid);
+	}
+
 	return rc;
 }
 
diff --git a/fs/cifs/smb2inode.c b/fs/cifs/smb2inode.c
index 78ff88c467b9..84c012a6aba0 100644
--- a/fs/cifs/smb2inode.c
+++ b/fs/cifs/smb2inode.c
@@ -123,12 +123,13 @@ move_smb2_info_to_cifs(FILE_ALL_INFO *dst, struct smb2_file_all_info *src)
 int
 smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
 		     struct cifs_sb_info *cifs_sb, const char *full_path,
-		     FILE_ALL_INFO *data, bool *adjust_tz)
+		     FILE_ALL_INFO *data, bool *adjust_tz, bool *symlink)
 {
 	int rc;
 	struct smb2_file_all_info *smb2_data;
 
 	*adjust_tz = false;
+	*symlink = false;
 
 	smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + MAX_NAME * 2,
 			    GFP_KERNEL);
@@ -136,9 +137,16 @@ smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
 		return -ENOMEM;
 
 	rc = smb2_open_op_close(xid, tcon, cifs_sb, full_path,
-				FILE_READ_ATTRIBUTES, FILE_OPEN,
-				OPEN_REPARSE_POINT, smb2_data,
-				SMB2_OP_QUERY_INFO);
+				FILE_READ_ATTRIBUTES, FILE_OPEN, 0,
+				smb2_data, SMB2_OP_QUERY_INFO);
+	if (rc == -EOPNOTSUPP) {
+		*symlink = true;
+		/* Failed on a symbolic link - query a reparse point info */
+		rc = smb2_open_op_close(xid, tcon, cifs_sb, full_path,
+					FILE_READ_ATTRIBUTES, FILE_OPEN,
+					OPEN_REPARSE_POINT, smb2_data,
+					SMB2_OP_QUERY_INFO);
+	}
 	if (rc)
 		goto out;
 
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index 313813e4c19b..b4eea105b08c 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -61,7 +61,7 @@ extern void move_smb2_info_to_cifs(FILE_ALL_INFO *dst,
 extern int smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
 				struct cifs_sb_info *cifs_sb,
 				const char *full_path, FILE_ALL_INFO *data,
-				bool *adjust_tz);
+				bool *adjust_tz, bool *symlink);
 extern int smb2_set_path_size(const unsigned int xid, struct cifs_tcon *tcon,
 			      const char *full_path, __u64 size,
 			      struct cifs_sb_info *cifs_sb, bool set_alloc);
-- 
cgit 


From cce0244ab0af78f8f01ad826d2f9813a9580b105 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@redhat.com>
Date: Thu, 7 Nov 2013 15:02:35 -0500
Subject: cifs: change ERRnomem error mapping from ENOMEM to EREMOTEIO

Sometimes, the server will report an error that basically indicates
that it's running out of resources. These include these under SMB1:

NT_STATUS_NO_MEMORY
NT_STATUS_SECTION_TOO_BIG
NT_STATUS_TOO_MANY_PAGING_FILES

...and this one under SMB2:

STATUS_NO_MEMORY

Currently, this gets mapped to ENOMEM by the client, but that's
confusing as an ENOMEM error is typically an indicator that the
client is out of memory.

Change these errors to instead map to EREMOTEIO to indicate that
the problem is actually server-side and not on the client.

Reported-by: "ISHIKAWA,chiaki" <ishikawa@yk.rim.or.jp>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/netmisc.c      | 2 +-
 fs/cifs/smb2maperror.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c
index 651a5279607b..049884552e76 100644
--- a/fs/cifs/netmisc.c
+++ b/fs/cifs/netmisc.c
@@ -51,7 +51,7 @@ static const struct smb_to_posix_error mapping_table_ERRDOS[] = {
 	{ERRnoaccess, -EACCES},
 	{ERRbadfid, -EBADF},
 	{ERRbadmcb, -EIO},
-	{ERRnomem, -ENOMEM},
+	{ERRnomem, -EREMOTEIO},
 	{ERRbadmem, -EFAULT},
 	{ERRbadenv, -EFAULT},
 	{ERRbadformat, -EINVAL},
diff --git a/fs/cifs/smb2maperror.c b/fs/cifs/smb2maperror.c
index 7c2f45c06fc2..94bd4fbb13d3 100644
--- a/fs/cifs/smb2maperror.c
+++ b/fs/cifs/smb2maperror.c
@@ -306,7 +306,7 @@ static const struct status_to_posix_error smb2_error_map_table[] = {
 	{STATUS_NONEXISTENT_SECTOR, -EIO, "STATUS_NONEXISTENT_SECTOR"},
 	{STATUS_MORE_PROCESSING_REQUIRED, -EIO,
 	"STATUS_MORE_PROCESSING_REQUIRED"},
-	{STATUS_NO_MEMORY, -ENOMEM, "STATUS_NO_MEMORY"},
+	{STATUS_NO_MEMORY, -EREMOTEIO, "STATUS_NO_MEMORY"},
 	{STATUS_CONFLICTING_ADDRESSES, -EADDRINUSE,
 	"STATUS_CONFLICTING_ADDRESSES"},
 	{STATUS_NOT_MAPPED_VIEW, -EIO, "STATUS_NOT_MAPPED_VIEW"},
-- 
cgit 


From a8582159edb47a60dd1e5df5a21890f225270f62 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@redhat.com>
Date: Thu, 7 Nov 2013 15:03:39 -0500
Subject: cifs: don't spam the logs on unexpected lookup errors

Andrey reported that he was seeing cifs.ko spam the logs with messages
like this:

    CIFS VFS: Unexpected lookup error -26

He was listing the root directory of a server and hitting an error when
trying to QUERY_PATH_INFO against hiberfil.sys and pagefile.sys. The
right fix would be to switch the lookup code over to using FIND_FIRST,
but until then we really don't need to report this at a level of
KERN_ERR. Convert this message over to FYI level.

Reported-by: "Andrey Shernyukov" <andreysh@nioch.nsc.ru>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/dir.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 5384c2a640ca..11ff5f116b20 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -756,7 +756,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
 	/*	if it was once a directory (but how can we tell?) we could do
 		shrink_dcache_parent(direntry); */
 	} else if (rc != -EACCES) {
-		cifs_dbg(VFS, "Unexpected lookup error %d\n", rc);
+		cifs_dbg(FYI, "Unexpected lookup error %d\n", rc);
 		/* We special case check for Access Denied - since that
 		is a common return code */
 	}
-- 
cgit 


From dca692880e887739a669f6c41a80ca68ce2b09fc Mon Sep 17 00:00:00 2001
From: Steve French <smfrench@gmail.com>
Date: Mon, 11 Nov 2013 16:42:37 -0600
Subject: [CIFS] O_DIRECT opens should work on directio mounts

Opens on current cifs/smb2/smb3 mounts with O_DIRECT flag fail
even when caching is disabled on the mount.  This was
reported by those running SMB2 benchmarks who need to
be able to pass O_DIRECT on many of their open calls to
reduce caching effects, but would also be needed by other
applications.

When mounting with forcedirectio ("cache=none") cifs and smb2/smb3
do not go through the page cache and thus opens with O_DIRECT flag
should work (when posix extensions are negotiated we even are
able to send the flag to the server). This patch fixes that
in a simple way.

The 9P client has a similar situation (caching is often disabled)
and takes the same approach to O_DIRECT support ie works if caching
disabled, but if client caching enabled it fails with EINVAL.

A followon idea for a future patch as Pavel noted, could
be that files opened with O_DIRECT could cause us to change
inode->i_fop on the fly from

cifs_file_strict_ops

to

cifs_file_direct_ops

which would allow us to support this on non-forcedirectio mounts
(cache=strict and cache=loose) as well.

Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/file.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 7ddddf2e2504..5a5a87240fe2 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -3663,6 +3663,27 @@ void cifs_oplock_break(struct work_struct *work)
 	}
 }
 
+/*
+ * The presence of cifs_direct_io() in the address space ops vector
+ * allowes open() O_DIRECT flags which would have failed otherwise.
+ *
+ * In the non-cached mode (mount with cache=none), we shunt off direct read and write requests
+ * so this method should never be called.
+ *
+ * Direct IO is not yet supported in the cached mode. 
+ */
+static ssize_t
+cifs_direct_io(int rw, struct kiocb *iocb, const struct iovec *iov,
+               loff_t pos, unsigned long nr_segs)
+{
+        /*
+         * FIXME
+         * Eventually need to support direct IO for non forcedirectio mounts
+         */
+        return -EINVAL;
+}
+
+
 const struct address_space_operations cifs_addr_ops = {
 	.readpage = cifs_readpage,
 	.readpages = cifs_readpages,
@@ -3672,6 +3693,7 @@ const struct address_space_operations cifs_addr_ops = {
 	.write_end = cifs_write_end,
 	.set_page_dirty = __set_page_dirty_nobuffers,
 	.releasepage = cifs_release_page,
+	.direct_IO = cifs_direct_io,
 	.invalidatepage = cifs_invalidate_page,
 	.launder_page = cifs_launder_page,
 };
-- 
cgit 


From 2c957ddf30897787e39462ac56cdc4bf21eb0465 Mon Sep 17 00:00:00 2001
From: Tim Gardner <tim.gardner@canonical.com>
Date: Thu, 7 Nov 2013 16:40:57 -0700
Subject: cifs: Use data structures to compute NTLMv2 response offsets

A bit of cleanup plus some gratuitous variable renaming. I think using
structures instead of numeric offsets makes this code much more
understandable.

Also added a comment about current time range expected by
the server.

Acked-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Shirish Pargaonkar <spargaonkar@suse.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/cifsencrypt.c | 40 ++++++++++++++++++++++++----------------
 fs/cifs/cifspdu.h     |  8 +++++++-
 2 files changed, 31 insertions(+), 17 deletions(-)

diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index fc6f4f3a1a9d..4934347321d3 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -548,7 +548,13 @@ static int
 CalcNTLMv2_response(const struct cifs_ses *ses, char *ntlmv2_hash)
 {
 	int rc;
-	unsigned int offset = CIFS_SESS_KEY_SIZE + 8;
+	struct ntlmv2_resp *ntlmv2 = (struct ntlmv2_resp *)
+	    (ses->auth_key.response + CIFS_SESS_KEY_SIZE);
+	unsigned int hash_len;
+
+	/* The MD5 hash starts at challenge_key.key */
+	hash_len = ses->auth_key.len - (CIFS_SESS_KEY_SIZE +
+		offsetof(struct ntlmv2_resp, challenge.key[0]));
 
 	if (!ses->server->secmech.sdeschmacmd5) {
 		cifs_dbg(VFS, "%s: can't generate ntlmv2 hash\n", __func__);
@@ -556,7 +562,7 @@ CalcNTLMv2_response(const struct cifs_ses *ses, char *ntlmv2_hash)
 	}
 
 	rc = crypto_shash_setkey(ses->server->secmech.hmacmd5,
-				ntlmv2_hash, CIFS_HMAC_MD5_HASH_SIZE);
+				 ntlmv2_hash, CIFS_HMAC_MD5_HASH_SIZE);
 	if (rc) {
 		cifs_dbg(VFS, "%s: Could not set NTLMV2 Hash as a key\n",
 			 __func__);
@@ -570,20 +576,21 @@ CalcNTLMv2_response(const struct cifs_ses *ses, char *ntlmv2_hash)
 	}
 
 	if (ses->server->negflavor == CIFS_NEGFLAVOR_EXTENDED)
-		memcpy(ses->auth_key.response + offset,
-			ses->ntlmssp->cryptkey, CIFS_SERVER_CHALLENGE_SIZE);
+		memcpy(ntlmv2->challenge.key,
+		       ses->ntlmssp->cryptkey, CIFS_SERVER_CHALLENGE_SIZE);
 	else
-		memcpy(ses->auth_key.response + offset,
-			ses->server->cryptkey, CIFS_SERVER_CHALLENGE_SIZE);
+		memcpy(ntlmv2->challenge.key,
+		       ses->server->cryptkey, CIFS_SERVER_CHALLENGE_SIZE);
 	rc = crypto_shash_update(&ses->server->secmech.sdeschmacmd5->shash,
-		ses->auth_key.response + offset, ses->auth_key.len - offset);
+				 ntlmv2->challenge.key, hash_len);
 	if (rc) {
 		cifs_dbg(VFS, "%s: Could not update with response\n", __func__);
 		return rc;
 	}
 
+	/* Note that the MD5 digest over writes anon.challenge_key.key */
 	rc = crypto_shash_final(&ses->server->secmech.sdeschmacmd5->shash,
-		ses->auth_key.response + CIFS_SESS_KEY_SIZE);
+				ntlmv2->ntlmv2_hash);
 	if (rc)
 		cifs_dbg(VFS, "%s: Could not generate md5 hash\n", __func__);
 
@@ -627,7 +634,7 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, const struct nls_table *nls_cp)
 	int rc;
 	int baselen;
 	unsigned int tilen;
-	struct ntlmv2_resp *buf;
+	struct ntlmv2_resp *ntlmv2;
 	char ntlmv2_hash[16];
 	unsigned char *tiblob = NULL; /* target info blob */
 
@@ -660,13 +667,14 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, const struct nls_table *nls_cp)
 	}
 	ses->auth_key.len += baselen;
 
-	buf = (struct ntlmv2_resp *)
+	ntlmv2 = (struct ntlmv2_resp *)
 			(ses->auth_key.response + CIFS_SESS_KEY_SIZE);
-	buf->blob_signature = cpu_to_le32(0x00000101);
-	buf->reserved = 0;
-	buf->time = cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME));
-	get_random_bytes(&buf->client_chal, sizeof(buf->client_chal));
-	buf->reserved2 = 0;
+	ntlmv2->blob_signature = cpu_to_le32(0x00000101);
+	ntlmv2->reserved = 0;
+	/* Must be within 5 minutes of the server */
+	ntlmv2->time = cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME));
+	get_random_bytes(&ntlmv2->client_chal, sizeof(ntlmv2->client_chal));
+	ntlmv2->reserved2 = 0;
 
 	memcpy(ses->auth_key.response + baselen, tiblob, tilen);
 
@@ -706,7 +714,7 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, const struct nls_table *nls_cp)
 	}
 
 	rc = crypto_shash_update(&ses->server->secmech.sdeschmacmd5->shash,
-		ses->auth_key.response + CIFS_SESS_KEY_SIZE,
+		ntlmv2->ntlmv2_hash,
 		CIFS_HMAC_MD5_HASH_SIZE);
 	if (rc) {
 		cifs_dbg(VFS, "%s: Could not update with response\n", __func__);
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index 9e5ee34de986..33df36ef9d52 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -697,7 +697,13 @@ struct ntlmssp2_name {
 } __attribute__((packed));
 
 struct ntlmv2_resp {
-	char ntlmv2_hash[CIFS_ENCPWD_SIZE];
+	union {
+	    char ntlmv2_hash[CIFS_ENCPWD_SIZE];
+	    struct {
+		__u8 reserved[8];
+		__u8 key[CIFS_SERVER_CHALLENGE_SIZE];
+	    } __attribute__((packed)) challenge;
+	} __attribute__((packed));
 	__le32 blob_signature;
 	__u32  reserved;
 	__le64  time;
-- 
cgit 


From 69e9c6c6dc87587d8846e447febedefe037c14f8 Mon Sep 17 00:00:00 2001
From: Stefan Behrens <sbehrens@giantdisaster.de>
Date: Thu, 5 Sep 2013 16:58:43 +0200
Subject: Btrfs: eliminate the exceptional root_tree refs=0

The fact that btrfs_root_refs() returned 0 for the tree_root caused
bugs in the past, therefore it is set to 1 with this patch and
(hopefully) all affected code is adapted to this change.

I verified this change by temporarily adding WARN_ON() checks
everywhere where btrfs_root_refs() is used, checking whether the
logic of the code is changed by btrfs_root_refs() returning 1
instead of 0 for root->root_key.objectid == BTRFS_ROOT_TREE_OBJECTID.
With these added checks, I ran the xfstests './check -g auto'.

The two roots chunk_root and log_root_tree that are only referenced
by the superblock and the log_roots below the log_root_tree still
have btrfs_root_refs() == 0, only the tree_root is changed.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/disk-io.c   |  1 +
 fs/btrfs/inode-map.c |  3 +--
 fs/btrfs/inode.c     | 21 ++++++++-------------
 3 files changed, 10 insertions(+), 15 deletions(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 62176ad89846..f724397b396b 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2670,6 +2670,7 @@ retry_root_backup:
 
 	btrfs_set_root_node(&tree_root->root_item, tree_root->node);
 	tree_root->commit_root = btrfs_root_node(tree_root);
+	btrfs_set_root_refs(&tree_root->root_item, 1);
 
 	location.objectid = BTRFS_EXTENT_TREE_OBJECTID;
 	location.type = BTRFS_ROOT_ITEM_KEY;
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
index 2c66ddbbe670..d11e1c6610b6 100644
--- a/fs/btrfs/inode-map.c
+++ b/fs/btrfs/inode-map.c
@@ -412,8 +412,7 @@ int btrfs_save_ino_cache(struct btrfs_root *root,
 		return 0;
 
 	/* Don't save inode cache if we are deleting this root */
-	if (btrfs_root_refs(&root->root_item) == 0 &&
-	    root != root->fs_info->tree_root)
+	if (btrfs_root_refs(&root->root_item) == 0)
 		return 0;
 
 	if (!btrfs_test_opt(root, INODE_MAP_CACHE))
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 51e3afa78354..dfc60aa40332 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4472,8 +4472,10 @@ void btrfs_evict_inode(struct inode *inode)
 	trace_btrfs_inode_evict(inode);
 
 	truncate_inode_pages(&inode->i_data, 0);
-	if (inode->i_nlink && (btrfs_root_refs(&root->root_item) != 0 ||
-			       btrfs_is_free_space_inode(inode)))
+	if (inode->i_nlink &&
+	    ((btrfs_root_refs(&root->root_item) != 0 &&
+	      root->root_key.objectid != BTRFS_ROOT_TREE_OBJECTID) ||
+	     btrfs_is_free_space_inode(inode)))
 		goto no_delete;
 
 	if (is_bad_inode(inode)) {
@@ -4490,7 +4492,8 @@ void btrfs_evict_inode(struct inode *inode)
 	}
 
 	if (inode->i_nlink > 0) {
-		BUG_ON(btrfs_root_refs(&root->root_item) != 0);
+		BUG_ON(btrfs_root_refs(&root->root_item) != 0 &&
+		       root->root_key.objectid != BTRFS_ROOT_TREE_OBJECTID);
 		goto no_delete;
 	}
 
@@ -4731,14 +4734,7 @@ static void inode_tree_del(struct inode *inode)
 	}
 	spin_unlock(&root->inode_lock);
 
-	/*
-	 * Free space cache has inodes in the tree root, but the tree root has a
-	 * root_refs of 0, so this could end up dropping the tree root as a
-	 * snapshot, so we need the extra !root->fs_info->tree_root check to
-	 * make sure we don't drop it.
-	 */
-	if (empty && btrfs_root_refs(&root->root_item) == 0 &&
-	    root != root->fs_info->tree_root) {
+	if (empty && btrfs_root_refs(&root->root_item) == 0) {
 		synchronize_srcu(&root->fs_info->subvol_srcu);
 		spin_lock(&root->inode_lock);
 		empty = RB_EMPTY_ROOT(&root->inode_tree);
@@ -7857,8 +7853,7 @@ int btrfs_drop_inode(struct inode *inode)
 		return 1;
 
 	/* the snap/subvol tree is on deleting */
-	if (btrfs_root_refs(&root->root_item) == 0 &&
-	    root != root->fs_info->tree_root)
+	if (btrfs_root_refs(&root->root_item) == 0)
 		return 1;
 	else
 		return generic_drop_inode(inode);
-- 
cgit 


From f06becc4119856c984e3beef54aa75538e656c6d Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Mon, 16 Sep 2013 09:53:28 +0100
Subject: Btrfs: don't store NULL byte in symlink extents

It is not necessary to store the NULL byte in a symlink inline file
extent. There's currently no code that requires the NULL byte to be
present in the extent. This change also doesn't break file format
compatibility nor the send/receive feature.

The VFS also doesn't need the NULL byte to be present in the extent,
as it reads up to inode->i_size bytes (which already excluded the NULL
byte) and sets the NULL byte for us (in fs/namei.c:page_getlink()).

So with this change we save 1 byte per symlink file extent (which is
always inlined in the btree leaf) without losing backward and forward
compatibility.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/inode.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index dfc60aa40332..59b4e2e495ac 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8339,7 +8339,7 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
 	struct btrfs_file_extent_item *ei;
 	struct extent_buffer *leaf;
 
-	name_len = strlen(symname) + 1;
+	name_len = strlen(symname);
 	if (name_len > BTRFS_MAX_INLINE_DATA_SIZE(root))
 		return -ENAMETOOLONG;
 
@@ -8427,7 +8427,7 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
 	inode->i_mapping->a_ops = &btrfs_symlink_aops;
 	inode->i_mapping->backing_dev_info = &root->fs_info->bdi;
 	inode_set_bytes(inode, name_len);
-	btrfs_i_size_write(inode, name_len - 1);
+	btrfs_i_size_write(inode, name_len);
 	err = btrfs_update_inode(trans, root, inode);
 	if (err)
 		drop_inode = 1;
-- 
cgit 


From dd3cc16b8750251ea9b1a843ce7806e82b015d5e Mon Sep 17 00:00:00 2001
From: Ross Kirk <ross.kirk@gmail.com>
Date: Mon, 16 Sep 2013 15:58:09 +0100
Subject: btrfs: drop unused parameter from btrfs_item_nr

Remove unused eb parameter from btrfs_item_nr

Signed-off-by: Ross Kirk <ross.kirk@gmail.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/backref.c    |  2 +-
 fs/btrfs/ctree.c      | 34 +++++++++++++++++-----------------
 fs/btrfs/ctree.h      | 13 ++++++-------
 fs/btrfs/dir-item.c   |  2 +-
 fs/btrfs/inode-item.c |  2 +-
 fs/btrfs/inode.c      |  4 ++--
 fs/btrfs/print-tree.c |  2 +-
 fs/btrfs/send.c       |  4 ++--
 8 files changed, 31 insertions(+), 32 deletions(-)

diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 0552a599b28f..721936a5b2ca 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -1619,7 +1619,7 @@ static int iterate_inode_refs(u64 inum, struct btrfs_root *fs_root,
 		btrfs_set_lock_blocking_rw(eb, BTRFS_READ_LOCK);
 		btrfs_release_path(path);
 
-		item = btrfs_item_nr(eb, slot);
+		item = btrfs_item_nr(slot);
 		iref = btrfs_item_ptr(eb, slot, struct btrfs_inode_ref);
 
 		for (cur = 0; cur < btrfs_item_size(eb, item); cur += len) {
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 61b5bcd57b7e..c274a752c93d 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -3337,8 +3337,8 @@ static int leaf_space_used(struct extent_buffer *l, int start, int nr)
 	if (!nr)
 		return 0;
 	btrfs_init_map_token(&token);
-	start_item = btrfs_item_nr(l, start);
-	end_item = btrfs_item_nr(l, end);
+	start_item = btrfs_item_nr(start);
+	end_item = btrfs_item_nr(end);
 	data_len = btrfs_token_item_offset(l, start_item, &token) +
 		btrfs_token_item_size(l, start_item, &token);
 	data_len = data_len - btrfs_token_item_offset(l, end_item, &token);
@@ -3406,7 +3406,7 @@ static noinline int __push_leaf_right(struct btrfs_trans_handle *trans,
 	slot = path->slots[1];
 	i = left_nritems - 1;
 	while (i >= nr) {
-		item = btrfs_item_nr(left, i);
+		item = btrfs_item_nr(i);
 
 		if (!empty && push_items > 0) {
 			if (path->slots[0] > i)
@@ -3470,7 +3470,7 @@ static noinline int __push_leaf_right(struct btrfs_trans_handle *trans,
 	btrfs_set_header_nritems(right, right_nritems);
 	push_space = BTRFS_LEAF_DATA_SIZE(root);
 	for (i = 0; i < right_nritems; i++) {
-		item = btrfs_item_nr(right, i);
+		item = btrfs_item_nr(i);
 		push_space -= btrfs_token_item_size(right, item, &token);
 		btrfs_set_token_item_offset(right, item, push_space, &token);
 	}
@@ -3612,7 +3612,7 @@ static noinline int __push_leaf_left(struct btrfs_trans_handle *trans,
 		nr = min(right_nritems - 1, max_slot);
 
 	for (i = 0; i < nr; i++) {
-		item = btrfs_item_nr(right, i);
+		item = btrfs_item_nr(i);
 
 		if (!empty && push_items > 0) {
 			if (path->slots[0] < i)
@@ -3663,7 +3663,7 @@ static noinline int __push_leaf_left(struct btrfs_trans_handle *trans,
 	for (i = old_left_nritems; i < old_left_nritems + push_items; i++) {
 		u32 ioff;
 
-		item = btrfs_item_nr(left, i);
+		item = btrfs_item_nr(i);
 
 		ioff = btrfs_token_item_offset(left, item, &token);
 		btrfs_set_token_item_offset(left, item,
@@ -3694,7 +3694,7 @@ static noinline int __push_leaf_left(struct btrfs_trans_handle *trans,
 	btrfs_set_header_nritems(right, right_nritems);
 	push_space = BTRFS_LEAF_DATA_SIZE(root);
 	for (i = 0; i < right_nritems; i++) {
-		item = btrfs_item_nr(right, i);
+		item = btrfs_item_nr(i);
 
 		push_space = push_space - btrfs_token_item_size(right,
 								item, &token);
@@ -3835,7 +3835,7 @@ static noinline void copy_for_split(struct btrfs_trans_handle *trans,
 		      btrfs_item_end_nr(l, mid);
 
 	for (i = 0; i < nritems; i++) {
-		struct btrfs_item *item = btrfs_item_nr(right, i);
+		struct btrfs_item *item = btrfs_item_nr(i);
 		u32 ioff;
 
 		ioff = btrfs_token_item_offset(right, item, &token);
@@ -4177,7 +4177,7 @@ static noinline int split_item(struct btrfs_trans_handle *trans,
 
 	btrfs_set_path_blocking(path);
 
-	item = btrfs_item_nr(leaf, path->slots[0]);
+	item = btrfs_item_nr(path->slots[0]);
 	orig_offset = btrfs_item_offset(leaf, item);
 	item_size = btrfs_item_size(leaf, item);
 
@@ -4200,7 +4200,7 @@ static noinline int split_item(struct btrfs_trans_handle *trans,
 	btrfs_cpu_key_to_disk(&disk_key, new_key);
 	btrfs_set_item_key(leaf, &disk_key, slot);
 
-	new_item = btrfs_item_nr(leaf, slot);
+	new_item = btrfs_item_nr(slot);
 
 	btrfs_set_item_offset(leaf, new_item, orig_offset);
 	btrfs_set_item_size(leaf, new_item, item_size - split_offset);
@@ -4339,7 +4339,7 @@ void btrfs_truncate_item(struct btrfs_root *root, struct btrfs_path *path,
 	/* first correct the data pointers */
 	for (i = slot; i < nritems; i++) {
 		u32 ioff;
-		item = btrfs_item_nr(leaf, i);
+		item = btrfs_item_nr(i);
 
 		ioff = btrfs_token_item_offset(leaf, item, &token);
 		btrfs_set_token_item_offset(leaf, item,
@@ -4387,7 +4387,7 @@ void btrfs_truncate_item(struct btrfs_root *root, struct btrfs_path *path,
 			fixup_low_keys(root, path, &disk_key, 1);
 	}
 
-	item = btrfs_item_nr(leaf, slot);
+	item = btrfs_item_nr(slot);
 	btrfs_set_item_size(leaf, item, new_size);
 	btrfs_mark_buffer_dirty(leaf);
 
@@ -4441,7 +4441,7 @@ void btrfs_extend_item(struct btrfs_root *root, struct btrfs_path *path,
 	/* first correct the data pointers */
 	for (i = slot; i < nritems; i++) {
 		u32 ioff;
-		item = btrfs_item_nr(leaf, i);
+		item = btrfs_item_nr(i);
 
 		ioff = btrfs_token_item_offset(leaf, item, &token);
 		btrfs_set_token_item_offset(leaf, item,
@@ -4455,7 +4455,7 @@ void btrfs_extend_item(struct btrfs_root *root, struct btrfs_path *path,
 
 	data_end = old_data;
 	old_size = btrfs_item_size_nr(leaf, slot);
-	item = btrfs_item_nr(leaf, slot);
+	item = btrfs_item_nr(slot);
 	btrfs_set_item_size(leaf, item, old_size + data_size);
 	btrfs_mark_buffer_dirty(leaf);
 
@@ -4514,7 +4514,7 @@ void setup_items_for_insert(struct btrfs_root *root, struct btrfs_path *path,
 		for (i = slot; i < nritems; i++) {
 			u32 ioff;
 
-			item = btrfs_item_nr(leaf, i);
+			item = btrfs_item_nr( i);
 			ioff = btrfs_token_item_offset(leaf, item, &token);
 			btrfs_set_token_item_offset(leaf, item,
 						    ioff - total_data, &token);
@@ -4535,7 +4535,7 @@ void setup_items_for_insert(struct btrfs_root *root, struct btrfs_path *path,
 	for (i = 0; i < nr; i++) {
 		btrfs_cpu_key_to_disk(&disk_key, cpu_key + i);
 		btrfs_set_item_key(leaf, &disk_key, slot + i);
-		item = btrfs_item_nr(leaf, slot + i);
+		item = btrfs_item_nr(slot + i);
 		btrfs_set_token_item_offset(leaf, item,
 					    data_end - data_size[i], &token);
 		data_end -= data_size[i];
@@ -4730,7 +4730,7 @@ int btrfs_del_items(struct btrfs_trans_handle *trans, struct btrfs_root *root,
 		for (i = slot + nr; i < nritems; i++) {
 			u32 ioff;
 
-			item = btrfs_item_nr(leaf, i);
+			item = btrfs_item_nr(i);
 			ioff = btrfs_token_item_offset(leaf, item, &token);
 			btrfs_set_token_item_offset(leaf, item,
 						    ioff + dsize, &token);
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 0506f40ede83..fa117f7d5a8f 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2461,8 +2461,7 @@ static inline unsigned long btrfs_item_nr_offset(int nr)
 		sizeof(struct btrfs_item) * nr;
 }
 
-static inline struct btrfs_item *btrfs_item_nr(struct extent_buffer *eb,
-					       int nr)
+static inline struct btrfs_item *btrfs_item_nr(int nr)
 {
 	return (struct btrfs_item *)btrfs_item_nr_offset(nr);
 }
@@ -2475,30 +2474,30 @@ static inline u32 btrfs_item_end(struct extent_buffer *eb,
 
 static inline u32 btrfs_item_end_nr(struct extent_buffer *eb, int nr)
 {
-	return btrfs_item_end(eb, btrfs_item_nr(eb, nr));
+	return btrfs_item_end(eb, btrfs_item_nr(nr));
 }
 
 static inline u32 btrfs_item_offset_nr(struct extent_buffer *eb, int nr)
 {
-	return btrfs_item_offset(eb, btrfs_item_nr(eb, nr));
+	return btrfs_item_offset(eb, btrfs_item_nr(nr));
 }
 
 static inline u32 btrfs_item_size_nr(struct extent_buffer *eb, int nr)
 {
-	return btrfs_item_size(eb, btrfs_item_nr(eb, nr));
+	return btrfs_item_size(eb, btrfs_item_nr(nr));
 }
 
 static inline void btrfs_item_key(struct extent_buffer *eb,
 			   struct btrfs_disk_key *disk_key, int nr)
 {
-	struct btrfs_item *item = btrfs_item_nr(eb, nr);
+	struct btrfs_item *item = btrfs_item_nr(nr);
 	read_eb_member(eb, item, struct btrfs_item, key, disk_key);
 }
 
 static inline void btrfs_set_item_key(struct extent_buffer *eb,
 			       struct btrfs_disk_key *disk_key, int nr)
 {
-	struct btrfs_item *item = btrfs_item_nr(eb, nr);
+	struct btrfs_item *item = btrfs_item_nr(nr);
 	write_eb_member(eb, item, struct btrfs_item, key, disk_key);
 }
 
diff --git a/fs/btrfs/dir-item.c b/fs/btrfs/dir-item.c
index 79e594e341c7..1c529db1697f 100644
--- a/fs/btrfs/dir-item.c
+++ b/fs/btrfs/dir-item.c
@@ -58,7 +58,7 @@ static struct btrfs_dir_item *insert_with_overflow(struct btrfs_trans_handle
 		return ERR_PTR(ret);
 	WARN_ON(ret > 0);
 	leaf = path->nodes[0];
-	item = btrfs_item_nr(leaf, path->slots[0]);
+	item = btrfs_item_nr(path->slots[0]);
 	ptr = btrfs_item_ptr(leaf, path->slots[0], char);
 	BUG_ON(data_size > btrfs_item_size(leaf, item));
 	ptr += btrfs_item_size(leaf, item) - data_size;
diff --git a/fs/btrfs/inode-item.c b/fs/btrfs/inode-item.c
index e0b7034d6343..ec82fae07097 100644
--- a/fs/btrfs/inode-item.c
+++ b/fs/btrfs/inode-item.c
@@ -369,7 +369,7 @@ static int btrfs_insert_inode_extref(struct btrfs_trans_handle *trans,
 		goto out;
 
 	leaf = path->nodes[0];
-	item = btrfs_item_nr(leaf, path->slots[0]);
+	item = btrfs_item_nr(path->slots[0]);
 	ptr = (unsigned long)btrfs_item_ptr(leaf, path->slots[0], char);
 	ptr += btrfs_item_size(leaf, item) - ins_len;
 	extref = (struct btrfs_inode_extref *)ptr;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 59b4e2e495ac..57b27012d43a 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -5044,7 +5044,7 @@ static int btrfs_real_readdir(struct file *file, struct dir_context *ctx)
 			continue;
 		}
 
-		item = btrfs_item_nr(leaf, slot);
+		item = btrfs_item_nr(slot);
 		btrfs_item_key_to_cpu(leaf, &found_key, slot);
 
 		if (found_key.objectid != key.objectid)
@@ -5856,7 +5856,7 @@ static noinline int uncompress_inline(struct btrfs_path *path,
 	compress_type = btrfs_file_extent_compression(leaf, item);
 	max_size = btrfs_file_extent_ram_bytes(leaf, item);
 	inline_size = btrfs_file_extent_inline_item_len(leaf,
-					btrfs_item_nr(leaf, path->slots[0]));
+					btrfs_item_nr(path->slots[0]));
 	tmp = kmalloc(inline_size, GFP_NOFS);
 	if (!tmp)
 		return -ENOMEM;
diff --git a/fs/btrfs/print-tree.c b/fs/btrfs/print-tree.c
index 0088bedc8631..417053b17181 100644
--- a/fs/btrfs/print-tree.c
+++ b/fs/btrfs/print-tree.c
@@ -193,7 +193,7 @@ void btrfs_print_leaf(struct btrfs_root *root, struct extent_buffer *l)
 	btrfs_info(root->fs_info, "leaf %llu total ptrs %d free space %d",
 		   btrfs_header_bytenr(l), nr, btrfs_leaf_free_space(root, l));
 	for (i = 0 ; i < nr ; i++) {
-		item = btrfs_item_nr(l, i);
+		item = btrfs_item_nr(i);
 		btrfs_item_key_to_cpu(l, &key, i);
 		type = btrfs_key_type(&key);
 		printk(KERN_INFO "\titem %d key (%llu %u %llu) itemoff %d "
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index e46e0ed74925..0a894399be16 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -791,7 +791,7 @@ static int iterate_inode_ref(struct btrfs_root *root, struct btrfs_path *path,
 	if (found_key->type == BTRFS_INODE_REF_KEY) {
 		ptr = (unsigned long)btrfs_item_ptr(eb, slot,
 						    struct btrfs_inode_ref);
-		item = btrfs_item_nr(eb, slot);
+		item = btrfs_item_nr(slot);
 		total = btrfs_item_size(eb, item);
 		elem_size = sizeof(*iref);
 	} else {
@@ -905,7 +905,7 @@ static int iterate_dir_item(struct btrfs_root *root, struct btrfs_path *path,
 
 	eb = path->nodes[0];
 	slot = path->slots[0];
-	item = btrfs_item_nr(eb, slot);
+	item = btrfs_item_nr(slot);
 	di = btrfs_item_ptr(eb, slot, struct btrfs_dir_item);
 	cur = 0;
 	len = 0;
-- 
cgit 


From 06ea65a398a2501e94beee3a425d07e1846ff25a Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Thu, 19 Sep 2013 16:07:01 -0400
Subject: Btrfs: add a sanity test for btrfs_split_item

While looking at somebodys corruption I became completely convinced that
btrfs_split_item was broken, so I wrote this test to verify that it was working
as it was supposed to.  Thankfully it appears to be working as intended, so just
add this test to make sure nobody breaks it in the future.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/Makefile                    |   3 +-
 fs/btrfs/ctree.h                     |   4 +-
 fs/btrfs/disk-io.c                   |  38 +++++-
 fs/btrfs/disk-io.h                   |   4 +
 fs/btrfs/super.c                     |   7 +-
 fs/btrfs/tests/btrfs-tests.h         |   5 +
 fs/btrfs/tests/extent-buffer-tests.c | 229 +++++++++++++++++++++++++++++++++++
 7 files changed, 283 insertions(+), 7 deletions(-)
 create mode 100644 fs/btrfs/tests/extent-buffer-tests.c

diff --git a/fs/btrfs/Makefile b/fs/btrfs/Makefile
index a91a6a355cc5..4c7dfbfaa3b3 100644
--- a/fs/btrfs/Makefile
+++ b/fs/btrfs/Makefile
@@ -14,4 +14,5 @@ btrfs-y += super.o ctree.o extent-tree.o print-tree.o root-tree.o dir-item.o \
 btrfs-$(CONFIG_BTRFS_FS_POSIX_ACL) += acl.o
 btrfs-$(CONFIG_BTRFS_FS_CHECK_INTEGRITY) += check-integrity.o
 
-btrfs-$(CONFIG_BTRFS_FS_RUN_SANITY_TESTS) += tests/free-space-tests.o
+btrfs-$(CONFIG_BTRFS_FS_RUN_SANITY_TESTS) += tests/free-space-tests.o \
+	tests/extent-buffer-tests.o
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index fa117f7d5a8f..ee0b8aa82828 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1724,7 +1724,9 @@ struct btrfs_root {
 	int ref_cows;
 	int track_dirty;
 	int in_radix;
-
+#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
+	int dummy_root;
+#endif
 	u64 defrag_trans_start;
 	struct btrfs_key defrag_progress;
 	struct btrfs_key defrag_max;
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index f724397b396b..db2095486a4f 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1229,14 +1229,18 @@ static void __setup_root(u32 nodesize, u32 leafsize, u32 sectorsize,
 	atomic_set(&root->refs, 1);
 	root->log_transid = 0;
 	root->last_log_commit = 0;
-	extent_io_tree_init(&root->dirty_log_pages,
-			     fs_info->btree_inode->i_mapping);
+	if (fs_info)
+		extent_io_tree_init(&root->dirty_log_pages,
+				     fs_info->btree_inode->i_mapping);
 
 	memset(&root->root_key, 0, sizeof(root->root_key));
 	memset(&root->root_item, 0, sizeof(root->root_item));
 	memset(&root->defrag_progress, 0, sizeof(root->defrag_progress));
 	memset(&root->root_kobj, 0, sizeof(root->root_kobj));
-	root->defrag_trans_start = fs_info->generation;
+	if (fs_info)
+		root->defrag_trans_start = fs_info->generation;
+	else
+		root->defrag_trans_start = 0;
 	init_completion(&root->kobj_unregister);
 	root->defrag_running = 0;
 	root->root_key.objectid = objectid;
@@ -1253,6 +1257,22 @@ static struct btrfs_root *btrfs_alloc_root(struct btrfs_fs_info *fs_info)
 	return root;
 }
 
+#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
+/* Should only be used by the testing infrastructure */
+struct btrfs_root *btrfs_alloc_dummy_root(void)
+{
+	struct btrfs_root *root;
+
+	root = btrfs_alloc_root(NULL);
+	if (!root)
+		return ERR_PTR(-ENOMEM);
+	__setup_root(4096, 4096, 4096, 4096, root, NULL, 1);
+	root->dummy_root = 1;
+
+	return root;
+}
+#endif
+
 struct btrfs_root *btrfs_create_tree(struct btrfs_trans_handle *trans,
 				     struct btrfs_fs_info *fs_info,
 				     u64 objectid)
@@ -3670,10 +3690,20 @@ int btrfs_set_buffer_uptodate(struct extent_buffer *buf)
 
 void btrfs_mark_buffer_dirty(struct extent_buffer *buf)
 {
-	struct btrfs_root *root = BTRFS_I(buf->pages[0]->mapping->host)->root;
+	struct btrfs_root *root;
 	u64 transid = btrfs_header_generation(buf);
 	int was_dirty;
 
+#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
+	/*
+	 * This is a fast path so only do this check if we have sanity tests
+	 * enabled.  Normal people shouldn't be marking dummy buffers as dirty
+	 * outside of the sanity tests.
+	 */
+	if (unlikely(test_bit(EXTENT_BUFFER_DUMMY, &buf->bflags)))
+		return;
+#endif
+	root = BTRFS_I(buf->pages[0]->mapping->host)->root;
 	btrfs_assert_tree_locked(buf);
 	if (transid != root->fs_info->generation)
 		WARN(1, KERN_CRIT "btrfs transid mismatch buffer %llu, "
diff --git a/fs/btrfs/disk-io.h b/fs/btrfs/disk-io.h
index 5ce2a7da8b11..53059df350f8 100644
--- a/fs/btrfs/disk-io.h
+++ b/fs/btrfs/disk-io.h
@@ -86,6 +86,10 @@ void btrfs_drop_and_free_fs_root(struct btrfs_fs_info *fs_info,
 				 struct btrfs_root *root);
 void btrfs_free_fs_root(struct btrfs_root *root);
 
+#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
+struct btrfs_root *btrfs_alloc_dummy_root(void);
+#endif
+
 /*
  * This function is used to grab the root, and avoid it is freed when we
  * access it. But it doesn't ensure that the tree is not dropped.
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index e913328d0f2a..0e398657d759 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1789,7 +1789,12 @@ static void btrfs_print_info(void)
 
 static int btrfs_run_sanity_tests(void)
 {
-	return btrfs_test_free_space_cache();
+	int ret;
+
+	ret = btrfs_test_free_space_cache();
+	if (ret)
+		return ret;
+	return btrfs_test_extent_buffer_operations();
 }
 
 static int __init init_btrfs_fs(void)
diff --git a/fs/btrfs/tests/btrfs-tests.h b/fs/btrfs/tests/btrfs-tests.h
index 580877625776..04f2cd2ca568 100644
--- a/fs/btrfs/tests/btrfs-tests.h
+++ b/fs/btrfs/tests/btrfs-tests.h
@@ -24,11 +24,16 @@
 #define test_msg(fmt, ...) pr_info("btrfs: selftest: " fmt, ##__VA_ARGS__)
 
 int btrfs_test_free_space_cache(void);
+int btrfs_test_extent_buffer_operations(void);
 #else
 static inline int btrfs_test_free_space_cache(void)
 {
 	return 0;
 }
+static inline int btrfs_test_extent_buffer_operations(void)
+{
+	return 0;
+}
 #endif
 
 #endif
diff --git a/fs/btrfs/tests/extent-buffer-tests.c b/fs/btrfs/tests/extent-buffer-tests.c
new file mode 100644
index 000000000000..cc286ce97d1e
--- /dev/null
+++ b/fs/btrfs/tests/extent-buffer-tests.c
@@ -0,0 +1,229 @@
+/*
+ * Copyright (C) 2013 Fusion IO.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+#include <linux/slab.h>
+#include "btrfs-tests.h"
+#include "../ctree.h"
+#include "../extent_io.h"
+#include "../disk-io.h"
+
+static int test_btrfs_split_item(void)
+{
+	struct btrfs_path *path;
+	struct btrfs_root *root;
+	struct extent_buffer *eb;
+	struct btrfs_item *item;
+	char *value = "mary had a little lamb";
+	char *split1 = "mary had a little";
+	char *split2 = " lamb";
+	char *split3 = "mary";
+	char *split4 = " had a little";
+	char buf[32];
+	struct btrfs_key key;
+	u32 value_len = strlen(value);
+	int ret = 0;
+
+	test_msg("Running btrfs_split_item tests\n");
+
+	root = btrfs_alloc_dummy_root();
+	if (IS_ERR(root)) {
+		test_msg("Could not allocate root\n");
+		return PTR_ERR(root);
+	}
+
+	path = btrfs_alloc_path();
+	if (!path) {
+		test_msg("Could not allocate path\n");
+		kfree(root);
+		return -ENOMEM;
+	}
+
+	path->nodes[0] = eb = alloc_dummy_extent_buffer(0, 4096);
+	if (!eb) {
+		test_msg("Could not allocate dummy buffer\n");
+		ret = -ENOMEM;
+		goto out;
+	}
+	path->slots[0] = 0;
+
+	key.objectid = 0;
+	key.type = BTRFS_EXTENT_CSUM_KEY;
+	key.offset = 0;
+
+	setup_items_for_insert(root, path, &key, &value_len, value_len,
+			       value_len + sizeof(struct btrfs_item), 1);
+	item = btrfs_item_nr(0);
+	write_extent_buffer(eb, value, btrfs_item_ptr_offset(eb, 0),
+			    value_len);
+
+	key.offset = 3;
+
+	/*
+	 * Passing NULL trans here should be safe because we have plenty of
+	 * space in this leaf to split the item without having to split the
+	 * leaf.
+	 */
+	ret = btrfs_split_item(NULL, root, path, &key, 17);
+	if (ret) {
+		test_msg("Split item failed %d\n", ret);
+		goto out;
+	}
+
+	/*
+	 * Read the first slot, it should have the original key and contain only
+	 * 'mary had a little'
+	 */
+	btrfs_item_key_to_cpu(eb, &key, 0);
+	if (key.objectid != 0 || key.type != BTRFS_EXTENT_CSUM_KEY ||
+	    key.offset != 0) {
+		test_msg("Invalid key at slot 0\n");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	item = btrfs_item_nr(0);
+	if (btrfs_item_size(eb, item) != strlen(split1)) {
+		test_msg("Invalid len in the first split\n");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	read_extent_buffer(eb, buf, btrfs_item_ptr_offset(eb, 0),
+			   strlen(split1));
+	if (memcmp(buf, split1, strlen(split1))) {
+		test_msg("Data in the buffer doesn't match what it should "
+			 "in the first split have='%.*s' want '%s'\n",
+			 (int)strlen(split1), buf, split1);
+		ret = -EINVAL;
+		goto out;
+	}
+
+	btrfs_item_key_to_cpu(eb, &key, 1);
+	if (key.objectid != 0 || key.type != BTRFS_EXTENT_CSUM_KEY ||
+	    key.offset != 3) {
+		test_msg("Invalid key at slot 1\n");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	item = btrfs_item_nr(1);
+	if (btrfs_item_size(eb, item) != strlen(split2)) {
+		test_msg("Invalid len in the second split\n");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	read_extent_buffer(eb, buf, btrfs_item_ptr_offset(eb, 1),
+			   strlen(split2));
+	if (memcmp(buf, split2, strlen(split2))) {
+		test_msg("Data in the buffer doesn't match what it should "
+			 "in the second split\n");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	key.offset = 1;
+	/* Do it again so we test memmoving the other items in the leaf */
+	ret = btrfs_split_item(NULL, root, path, &key, 4);
+	if (ret) {
+		test_msg("Second split item failed %d\n", ret);
+		goto out;
+	}
+
+	btrfs_item_key_to_cpu(eb, &key, 0);
+	if (key.objectid != 0 || key.type != BTRFS_EXTENT_CSUM_KEY ||
+	    key.offset != 0) {
+		test_msg("Invalid key at slot 0\n");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	item = btrfs_item_nr(0);
+	if (btrfs_item_size(eb, item) != strlen(split3)) {
+		test_msg("Invalid len in the first split\n");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	read_extent_buffer(eb, buf, btrfs_item_ptr_offset(eb, 0),
+			   strlen(split3));
+	if (memcmp(buf, split3, strlen(split3))) {
+		test_msg("Data in the buffer doesn't match what it should "
+			 "in the third split");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	btrfs_item_key_to_cpu(eb, &key, 1);
+	if (key.objectid != 0 || key.type != BTRFS_EXTENT_CSUM_KEY ||
+	    key.offset != 1) {
+		test_msg("Invalid key at slot 1\n");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	item = btrfs_item_nr(1);
+	if (btrfs_item_size(eb, item) != strlen(split4)) {
+		test_msg("Invalid len in the second split\n");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	read_extent_buffer(eb, buf, btrfs_item_ptr_offset(eb, 1),
+			   strlen(split4));
+	if (memcmp(buf, split4, strlen(split4))) {
+		test_msg("Data in the buffer doesn't match what it should "
+			 "in the fourth split\n");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	btrfs_item_key_to_cpu(eb, &key, 2);
+	if (key.objectid != 0 || key.type != BTRFS_EXTENT_CSUM_KEY ||
+	    key.offset != 3) {
+		test_msg("Invalid key at slot 2\n");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	item = btrfs_item_nr(2);
+	if (btrfs_item_size(eb, item) != strlen(split2)) {
+		test_msg("Invalid len in the second split\n");
+		ret = -EINVAL;
+		goto out;
+	}
+
+	read_extent_buffer(eb, buf, btrfs_item_ptr_offset(eb, 2),
+			   strlen(split2));
+	if (memcmp(buf, split2, strlen(split2))) {
+		test_msg("Data in the buffer doesn't match what it should "
+			 "in the last chunk\n");
+		ret = -EINVAL;
+		goto out;
+	}
+out:
+	btrfs_free_path(path);
+	kfree(root);
+	return ret;
+}
+
+int btrfs_test_extent_buffer_operations(void)
+{
+	test_msg("Running extent buffer operation tests");
+	return test_btrfs_split_item();
+}
-- 
cgit 


From d4b4087c43cc00a196c5be57fac41f41309f1d56 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Tue, 24 Sep 2013 14:09:34 -0400
Subject: Btrfs: do a full search everytime in btrfs_search_old_slot

While running some snashot aware defrag tests I noticed I was panicing every
once and a while in key_search.  This is because of the optimization that says
if we find a key at slot 0 it will be at slot 0 all the way down the rest of the
tree.  This isn't the case for btrfs_search_old_slot since it will likely replay
changes to a buffer if something has changed since we took our sequence number.
So short circuit this optimization by setting prev_cmp to -1 every time we call
key_search so we will do our normal binary search.  With this patch I am no
longer seeing the panics I was seeing before.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/ctree.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index c274a752c93d..6932686b61cf 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -2758,7 +2758,7 @@ int btrfs_search_old_slot(struct btrfs_root *root, struct btrfs_key *key,
 	int level;
 	int lowest_unlock = 1;
 	u8 lowest_level = 0;
-	int prev_cmp;
+	int prev_cmp = -1;
 
 	lowest_level = p->lowest_level;
 	WARN_ON(p->nodes[0] != NULL);
@@ -2769,7 +2769,6 @@ int btrfs_search_old_slot(struct btrfs_root *root, struct btrfs_key *key,
 	}
 
 again:
-	prev_cmp = -1;
 	b = get_old_root(root, time_seq);
 	level = btrfs_header_level(b);
 	p->locks[level] = BTRFS_READ_LOCK;
@@ -2787,6 +2786,11 @@ again:
 		 */
 		btrfs_unlock_up_safe(p, level + 1);
 
+		/*
+		 * Since we can unwind eb's we want to do a real search every
+		 * time.
+		 */
+		prev_cmp = -1;
 		ret = key_search(b, key, level, &prev_cmp, &slot);
 
 		if (level != 0) {
-- 
cgit 


From 53645a91f4baed059ec5dfb22340cf3e6b8fdd2c Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Fri, 20 Sep 2013 14:43:28 +0100
Subject: Btrfs: remove duplicated ino cache's inode lookup

We're doing a unnecessary extra lookup of the ino cache's
inode when we already have it (and holding a reference)
during the process of saving the ino cache contents to disk.
Therefore remove this extra lookup.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/free-space-cache.c | 9 ++-------
 fs/btrfs/free-space-cache.h | 3 ++-
 fs/btrfs/inode-map.c        | 2 +-
 3 files changed, 5 insertions(+), 9 deletions(-)

diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index b4f9904c4c6b..9a1e371a6eba 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -2967,19 +2967,15 @@ out:
 
 int btrfs_write_out_ino_cache(struct btrfs_root *root,
 			      struct btrfs_trans_handle *trans,
-			      struct btrfs_path *path)
+			      struct btrfs_path *path,
+			      struct inode *inode)
 {
 	struct btrfs_free_space_ctl *ctl = root->free_ino_ctl;
-	struct inode *inode;
 	int ret;
 
 	if (!btrfs_test_opt(root, INODE_MAP_CACHE))
 		return 0;
 
-	inode = lookup_free_ino_inode(root, path);
-	if (IS_ERR(inode))
-		return 0;
-
 	ret = __btrfs_write_out_cache(root, inode, ctl, NULL, trans, path, 0);
 	if (ret) {
 		btrfs_delalloc_release_metadata(inode, inode->i_size);
@@ -2990,7 +2986,6 @@ int btrfs_write_out_ino_cache(struct btrfs_root *root,
 #endif
 	}
 
-	iput(inode);
 	return ret;
 }
 
diff --git a/fs/btrfs/free-space-cache.h b/fs/btrfs/free-space-cache.h
index e737f92cf6d0..ba8d5a1b64b5 100644
--- a/fs/btrfs/free-space-cache.h
+++ b/fs/btrfs/free-space-cache.h
@@ -76,7 +76,8 @@ int load_free_ino_cache(struct btrfs_fs_info *fs_info,
 			struct btrfs_root *root);
 int btrfs_write_out_ino_cache(struct btrfs_root *root,
 			      struct btrfs_trans_handle *trans,
-			      struct btrfs_path *path);
+			      struct btrfs_path *path,
+			      struct inode *inode);
 
 void btrfs_init_free_space_ctl(struct btrfs_block_group_cache *block_group);
 int __btrfs_add_free_space(struct btrfs_free_space_ctl *ctl,
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
index d11e1c6610b6..b863e45d373b 100644
--- a/fs/btrfs/inode-map.c
+++ b/fs/btrfs/inode-map.c
@@ -503,7 +503,7 @@ again:
 	}
 	btrfs_free_reserved_data_space(inode, prealloc);
 
-	ret = btrfs_write_out_ino_cache(root, trans, path);
+	ret = btrfs_write_out_ino_cache(root, trans, path, inode);
 out_put:
 	iput(inode);
 out_release:
-- 
cgit 


From 74514323947ef27347564bfd7a663fdb3429cb20 Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Fri, 20 Sep 2013 14:46:51 +0100
Subject: Btrfs: remove path arg from btrfs_truncate_free_space_cache

Not used for anything, and removing it avoids caller's need to
allocate a path structure.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/extent-tree.c      |  3 +--
 fs/btrfs/free-space-cache.c |  1 -
 fs/btrfs/free-space-cache.h |  1 -
 fs/btrfs/inode-map.c        |  2 +-
 fs/btrfs/relocation.c       | 11 +----------
 5 files changed, 3 insertions(+), 15 deletions(-)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index d58bef130a41..55b537fcb81a 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3197,8 +3197,7 @@ again:
 		if (ret)
 			goto out_put;
 
-		ret = btrfs_truncate_free_space_cache(root, trans, path,
-						      inode);
+		ret = btrfs_truncate_free_space_cache(root, trans, inode);
 		if (ret)
 			goto out_put;
 	}
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 9a1e371a6eba..4772f3a8e7e5 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -218,7 +218,6 @@ int btrfs_check_trunc_cache_free_space(struct btrfs_root *root,
 
 int btrfs_truncate_free_space_cache(struct btrfs_root *root,
 				    struct btrfs_trans_handle *trans,
-				    struct btrfs_path *path,
 				    struct inode *inode)
 {
 	int ret = 0;
diff --git a/fs/btrfs/free-space-cache.h b/fs/btrfs/free-space-cache.h
index ba8d5a1b64b5..0cf4977ef70d 100644
--- a/fs/btrfs/free-space-cache.h
+++ b/fs/btrfs/free-space-cache.h
@@ -58,7 +58,6 @@ int btrfs_check_trunc_cache_free_space(struct btrfs_root *root,
 				       struct btrfs_block_rsv *rsv);
 int btrfs_truncate_free_space_cache(struct btrfs_root *root,
 				    struct btrfs_trans_handle *trans,
-				    struct btrfs_path *path,
 				    struct inode *inode);
 int load_free_space_cache(struct btrfs_fs_info *fs_info,
 			  struct btrfs_block_group_cache *block_group);
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
index b863e45d373b..014de497e888 100644
--- a/fs/btrfs/inode-map.c
+++ b/fs/btrfs/inode-map.c
@@ -466,7 +466,7 @@ again:
 	}
 
 	if (i_size_read(inode) > 0) {
-		ret = btrfs_truncate_free_space_cache(root, trans, path, inode);
+		ret = btrfs_truncate_free_space_cache(root, trans, inode);
 		if (ret) {
 			if (ret != -ENOSPC)
 				btrfs_abort_transaction(trans, root, ret);
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 4a355726151e..dec4f5aead0f 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -3407,7 +3407,6 @@ static int delete_block_group_cache(struct btrfs_fs_info *fs_info,
 				    struct inode *inode, u64 ino)
 {
 	struct btrfs_key key;
-	struct btrfs_path *path;
 	struct btrfs_root *root = fs_info->tree_root;
 	struct btrfs_trans_handle *trans;
 	int ret = 0;
@@ -3432,22 +3431,14 @@ truncate:
 	if (ret)
 		goto out;
 
-	path = btrfs_alloc_path();
-	if (!path) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
 	trans = btrfs_join_transaction(root);
 	if (IS_ERR(trans)) {
-		btrfs_free_path(path);
 		ret = PTR_ERR(trans);
 		goto out;
 	}
 
-	ret = btrfs_truncate_free_space_cache(root, trans, path, inode);
+	ret = btrfs_truncate_free_space_cache(root, trans, inode);
 
-	btrfs_free_path(path);
 	btrfs_end_transaction(trans, root);
 	btrfs_btree_balance_dirty(root);
 out:
-- 
cgit 


From fe09e16cc8d444ecc52f6f9a651946f16fffa4e1 Mon Sep 17 00:00:00 2001
From: Liu Bo <bo.li.liu@oracle.com>
Date: Sun, 22 Sep 2013 12:54:23 +0800
Subject: Btrfs: export btrfs space shared info to userspace

Similar to ocfs2, btrfs also supports that extents can be shared by
different inodes, and there are some userspace tools requesting
for this kind of 'space shared infomation'.[1]

ocfs2 uses flag FIEMAP_EXTENT_SHARED, so does btrfs.

[1]: http://thr3ads.net/ocfs2-devel/2010/09/489052-PATCH-3-3-shared-du-using-fiemap-to-figure-up-the-shared-extents-per-file-and-the-footprint-in

Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/extent_io.c | 34 +++++++++++++++++++++++++++++++++-
 1 file changed, 33 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 51731b76900d..2bf6f46fae44 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -20,6 +20,7 @@
 #include "check-integrity.h"
 #include "locking.h"
 #include "rcu-string.h"
+#include "backref.h"
 
 static struct kmem_cache *extent_state_cache;
 static struct kmem_cache *extent_buffer_cache;
@@ -4062,6 +4063,19 @@ static struct extent_map *get_extent_skip_holes(struct inode *inode,
 	return NULL;
 }
 
+static noinline int count_ext_ref(u64 inum, u64 offset, u64 root_id, void *ctx)
+{
+	unsigned long cnt = *((unsigned long *)ctx);
+
+	cnt++;
+	*((unsigned long *)ctx) = cnt;
+
+	/* Now we're sure that the extent is shared. */
+	if (cnt > 1)
+		return 1;
+	return 0;
+}
+
 int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
 		__u64 start, __u64 len, get_extent_t *get_extent)
 {
@@ -4128,7 +4142,7 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
 		last = found_key.offset;
 		last_for_get_extent = last + 1;
 	}
-	btrfs_free_path(path);
+	btrfs_release_path(path);
 
 	/*
 	 * we might have some extents allocated but more delalloc past those
@@ -4198,7 +4212,24 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
 			flags |= (FIEMAP_EXTENT_DELALLOC |
 				  FIEMAP_EXTENT_UNKNOWN);
 		} else {
+			unsigned long ref_cnt = 0;
+
 			disko = em->block_start + offset_in_extent;
+
+			/*
+			 * As btrfs supports shared space, this information
+			 * can be exported to userspace tools via
+			 * flag FIEMAP_EXTENT_SHARED.
+			 */
+			ret = iterate_inodes_from_logical(
+					em->block_start,
+					BTRFS_I(inode)->root->fs_info,
+					path, count_ext_ref, &ref_cnt);
+			if (ret < 0 && ret != -ENOENT)
+				goto out_free;
+
+			if (ref_cnt > 1)
+				flags |= FIEMAP_EXTENT_SHARED;
 		}
 		if (test_bit(EXTENT_FLAG_COMPRESSED, &em->flags))
 			flags |= FIEMAP_EXTENT_ENCODED;
@@ -4230,6 +4261,7 @@ int extent_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
 out_free:
 	free_extent_map(em);
 out:
+	btrfs_free_path(path);
 	unlock_extent_cached(&BTRFS_I(inode)->io_tree, start, start + len - 1,
 			     &cached_state, GFP_NOFS);
 	return ret;
-- 
cgit 


From 703c88e035242202e3ab48fcbbbe0a7bc62fb7bb Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Sun, 22 Sep 2013 21:54:55 +0100
Subject: Btrfs: fix tracking of orphan inode count

In inode.c:btrfs_orphan_add() if we failed to insert the orphan
item, we would return without decrementing the orphan count that
we just incremented before attempting the insertion, leaving the
orphan inode count wrong.

In inode.c:btrfs_orphan_del(), we were decrementing the inode
orphan count if the bit BTRFS_INODE_ORPHAN_META_RESERVED was set,
which is logically wrong because it should be decremented if the
bit BTRFS_INODE_HAS_ORPHAN_ITEM was set - after all we increment
the count when we set the bit BTRFS_INODE_HAS_ORPHAN_ITEM elsewhere.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/inode.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 57b27012d43a..939dd1ff34a7 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -2969,6 +2969,7 @@ int btrfs_orphan_add(struct btrfs_trans_handle *trans, struct inode *inode)
 	if (insert >= 1) {
 		ret = btrfs_insert_orphan_item(trans, root, btrfs_ino(inode));
 		if (ret) {
+			atomic_dec(&root->orphan_inodes);
 			if (reserve) {
 				clear_bit(BTRFS_INODE_ORPHAN_META_RESERVED,
 					  &BTRFS_I(inode)->runtime_flags);
@@ -3018,14 +3019,16 @@ static int btrfs_orphan_del(struct btrfs_trans_handle *trans,
 		release_rsv = 1;
 	spin_unlock(&root->orphan_lock);
 
-	if (trans && delete_item)
-		ret = btrfs_del_orphan_item(trans, root, btrfs_ino(inode));
-
-	if (release_rsv) {
-		btrfs_orphan_release_metadata(inode);
+	if (delete_item) {
 		atomic_dec(&root->orphan_inodes);
+		if (trans)
+			ret = btrfs_del_orphan_item(trans, root,
+						    btrfs_ino(inode));
 	}
 
+	if (release_rsv)
+		btrfs_orphan_release_metadata(inode);
+
 	return ret;
 }
 
-- 
cgit 


From 9b1998598625fb5b798e8291cafda1a8ec17c1bd Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Mon, 23 Sep 2013 11:35:11 +0100
Subject: Btrfs: fix sync fs to actually wait for all data to be persisted

Currently the fs sync function (super.c:btrfs_sync_fs()) doesn't
wait for delayed work to finish before returning success to the
caller. This change fixes this, ensuring that there's no data loss
if a power failure happens right after fs sync returns success to
the caller and before the next commit happens.

Steps to reproduce the data loss issue:

$ mkfs.btrfs -f /dev/sdb3
$ mount /dev/sdb3 /mnt/btrfs
$ perl -e '$d = ("\x41" x 6001); open($f,">","/mnt/btrfs/foobar"); print $f $d; close($f);' && btrfs fi sync /mnt/btrfs

Right after the btrfs fi sync command (a second or 2 for example), power
off the machine and reboot it. The file will be empty, as it can be verified
after mounting the filesystem and through btrfs-debug-tree:

$ btrfs-debug-tree /dev/sdb3 | egrep '\(257 INODE_ITEM 0\) itemoff' -B 3 -A 8
        item 3 key (256 DIR_INDEX 2) itemoff 3751 itemsize 36
                location key (257 INODE_ITEM 0) type FILE
                namelen 6 datalen 0 name: foobar
        item 4 key (257 INODE_ITEM 0) itemoff 3591 itemsize 160
                inode generation 7 transid 7 size 0 block group 0 mode 100644 links 1
        item 5 key (257 INODE_REF 256) itemoff 3575 itemsize 16
                inode ref index 2 namelen 6 name: foobar
checksum tree key (CSUM_TREE ROOT_ITEM 0)
leaf 29429760 items 0 free space 3995 generation 7 owner 7
fs uuid 6192815c-af2a-4b75-b3db-a959ffb6166e
chunk uuid b529c44b-938c-4d3d-910a-013b4700bcae
uuid tree key (UUID_TREE ROOT_ITEM 0)

After this patch, the data loss no longer happens after a power failure and
btrfs-debug-tree shows:

$ btrfs-debug-tree /dev/sdb3 | egrep '\(257 INODE_ITEM 0\) itemoff' -B 3 -A 8
	item 3 key (256 DIR_INDEX 2) itemoff 3751 itemsize 36
		location key (257 INODE_ITEM 0) type FILE
		namelen 6 datalen 0 name: foobar
	item 4 key (257 INODE_ITEM 0) itemoff 3591 itemsize 160
		inode generation 6 transid 6 size 6001 block group 0 mode 100644 links 1
	item 5 key (257 INODE_REF 256) itemoff 3575 itemsize 16
		inode ref index 2 namelen 6 name: foobar
	item 6 key (257 EXTENT_DATA 0) itemoff 3522 itemsize 53
		extent data disk byte 12845056 nr 8192
		extent data offset 0 nr 8192 ram 8192
		extent compression 0
checksum tree key (CSUM_TREE ROOT_ITEM 0)

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Reviewed-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/ioctl.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 9d46f60cb943..385c58f2bba1 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -4557,9 +4557,15 @@ long btrfs_ioctl(struct file *file, unsigned int
 		return btrfs_ioctl_logical_to_ino(root, argp);
 	case BTRFS_IOC_SPACE_INFO:
 		return btrfs_ioctl_space_info(root, argp);
-	case BTRFS_IOC_SYNC:
-		btrfs_sync_fs(file->f_dentry->d_sb, 1);
-		return 0;
+	case BTRFS_IOC_SYNC: {
+		int ret;
+
+		ret = btrfs_start_all_delalloc_inodes(root->fs_info, 0);
+		if (ret)
+			return ret;
+		ret = btrfs_sync_fs(file->f_dentry->d_sb, 1);
+		return ret;
+	}
 	case BTRFS_IOC_START_SYNC:
 		return btrfs_ioctl_start_sync(root, argp);
 	case BTRFS_IOC_WAIT_SYNC:
-- 
cgit 


From e84cc14213e2c81ae5a2da341a9da0d58a1dbfad Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Mon, 9 Sep 2013 19:49:43 +0100
Subject: Btrfs: don't leak block group on error

In extent-tree.c:btrfs_write_dirty_block_groups(), if the call to
write_one_cache_group() failed, we would return without putting
the block group first.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/extent-tree.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 55b537fcb81a..54ee542c705e 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3317,10 +3317,9 @@ again:
 		last = cache->key.objectid + cache->key.offset;
 
 		err = write_one_cache_group(trans, root, path, cache);
+		btrfs_put_block_group(cache);
 		if (err) /* File system offline */
 			goto out;
-
-		btrfs_put_block_group(cache);
 	}
 
 	while (1) {
-- 
cgit 


From 4577b014d1bc3db386da3246f625888fc48083a9 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Fri, 27 Sep 2013 09:33:09 -0400
Subject: Btrfs: relocate csums properly with prealloc extents

A user reported a problem where they were getting csum errors when running a
balance and running systemd's journal.  This is because systemd is awesome and
fallocate()'s its log space and writes into it.  Unfortunately we assume that
when we read in all the csums for an extent that they are sequential starting at
the bytenr we care about.  This obviously isn't the case for prealloc extents,
where we could have written to the middle of the prealloc extent only, which
means the csum would be for the bytenr in the middle of our range and not the
front of our range.  Fix this by offsetting the new bytenr we are logging to
based on the original bytenr the csum was for.  With this patch I no longer see
the csum errors I was seeing.  Thanks,

Cc: stable@vger.kernel.org
Reported-by: Chris Murphy <lists@colorremedies.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/relocation.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index dec4f5aead0f..0359eecac95d 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -4472,6 +4472,7 @@ int btrfs_reloc_clone_csums(struct inode *inode, u64 file_pos, u64 len)
 	struct btrfs_root *root = BTRFS_I(inode)->root;
 	int ret;
 	u64 disk_bytenr;
+	u64 new_bytenr;
 	LIST_HEAD(list);
 
 	ordered = btrfs_lookup_ordered_extent(inode, file_pos);
@@ -4483,13 +4484,24 @@ int btrfs_reloc_clone_csums(struct inode *inode, u64 file_pos, u64 len)
 	if (ret)
 		goto out;
 
-	disk_bytenr = ordered->start;
 	while (!list_empty(&list)) {
 		sums = list_entry(list.next, struct btrfs_ordered_sum, list);
 		list_del_init(&sums->list);
 
-		sums->bytenr = disk_bytenr;
-		disk_bytenr += sums->len;
+		/*
+		 * We need to offset the new_bytenr based on where the csum is.
+		 * We need to do this because we will read in entire prealloc
+		 * extents but we may have written to say the middle of the
+		 * prealloc extent, so we need to make sure the csum goes with
+		 * the right disk offset.
+		 *
+		 * We can do this because the data reloc inode refers strictly
+		 * to the on disk bytes, so we don't have to worry about
+		 * disk_len vs real len like with real inodes since it's all
+		 * disk length.
+		 */
+		new_bytenr = ordered->start + (sums->bytenr - disk_bytenr);
+		sums->bytenr = new_bytenr;
 
 		btrfs_add_ordered_sum(inode, ordered, sums);
 	}
-- 
cgit 


From e0228285a8cad70e4b7b4833cc650e36ecd8de89 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Fri, 20 Sep 2013 22:26:29 -0400
Subject: Btrfs: reset intwrite on transaction abort

If we abort a transaction in the middle of a commit we weren't undoing the
intwrite locking.  This patch fixes that problem.

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/transaction.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 8c81bdc1ef9b..7138d6a3726e 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1552,6 +1552,8 @@ static void cleanup_transaction(struct btrfs_trans_handle *trans,
 		root->fs_info->running_transaction = NULL;
 	spin_unlock(&root->fs_info->trans_lock);
 
+	if (trans->type & __TRANS_FREEZABLE)
+		sb_end_intwrite(root->fs_info->sb);
 	put_transaction(cur_trans);
 	put_transaction(cur_trans);
 
-- 
cgit 


From b6d08f0630d51ec09d67f16f6d7839699bbc0402 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Fri, 27 Sep 2013 14:57:43 -0400
Subject: Btrfs: do not release metadata for space cache inodes

I've been testing our error paths and I was tripping the BUG_ON() in
drop_outstanding_extent because our outstanding_extents is 0 for space cache
inodes.  This is because we don't reserve metadata space for these inodes since
we depend on the global block reserve for our space.  To fix this we need to
make sure the DO_ACCOUNTING stuff doesn't actually call release_metadata for
space cache inodes.  With this patch I'm no longer panicing.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/inode.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 939dd1ff34a7..c0dcb4c3d72d 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1551,7 +1551,13 @@ static void btrfs_clear_bit_hook(struct inode *inode,
 			spin_unlock(&BTRFS_I(inode)->lock);
 		}
 
-		if (*bits & EXTENT_DO_ACCOUNTING)
+		/*
+		 * We don't reserve metadata space for space cache inodes so we
+		 * don't need to call dellalloc_release_metadata if there is an
+		 * error.
+		 */
+		if (*bits & EXTENT_DO_ACCOUNTING &&
+		    root != root->fs_info->tree_root)
 			btrfs_delalloc_release_metadata(inode, len);
 
 		if (root->root_key.objectid != BTRFS_DATA_RELOC_TREE_OBJECTID
-- 
cgit 


From 4e121c06adf53aae478ebce3035116595d063413 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Fri, 27 Sep 2013 16:32:39 -0400
Subject: Btrfs: cleanup transaction on abort

If we abort not during a transaction commit we won't clean up anything until we
unmount.  Unfortunately if we abort in the middle of writing out an ordered
extent we won't clean it up and if somebody is waiting on that ordered extent
they will wait forever.  To fix this just make the transaction kthread call the
cleanup transaction stuff if it notices theres an error, and make
btrfs_end_transaction wake up the transaction kthread if there is an error.
Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/disk-io.c     | 3 +++
 fs/btrfs/transaction.c | 4 +++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index db2095486a4f..113cd43530ba 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1800,6 +1800,9 @@ sleep:
 		wake_up_process(root->fs_info->cleaner_kthread);
 		mutex_unlock(&root->fs_info->transaction_kthread_mutex);
 
+		if (unlikely(test_bit(BTRFS_FS_STATE_ERROR,
+				      &root->fs_info->fs_state)))
+			btrfs_cleanup_transaction(root);
 		if (!try_to_freeze()) {
 			set_current_state(TASK_INTERRUPTIBLE);
 			if (!kthread_should_stop() &&
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 7138d6a3726e..a1343e81c59d 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -744,8 +744,10 @@ static int __btrfs_end_transaction(struct btrfs_trans_handle *trans,
 		btrfs_run_delayed_iputs(root);
 
 	if (trans->aborted ||
-	    test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state))
+	    test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state)) {
+		wake_up_process(info->transaction_kthread);
 		err = -EIO;
+	}
 	assert_qgroups_uptodate(trans);
 
 	kmem_cache_free(btrfs_trans_handle_cachep, trans);
-- 
cgit 


From 1de2cfde93c20a0357ff1dffed901598470facf3 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Fri, 27 Sep 2013 16:36:02 -0400
Subject: Btrfs: don't delete ordered roots from list during cleanup

During transaction cleanup after an abort we are just removing roots from the
ordered roots list which is incorrect.  We have a BUG_ON() to make sure that the
root is still part of the ordered roots list when we put our ordered extent
which we were tripping in this case.  So do like we do everywhere else and just
move it to the tail of the ordered roots list and allow the normal cleanup to
take care of stuff.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/disk-io.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 113cd43530ba..01a26e2eb310 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3836,7 +3836,8 @@ static void btrfs_destroy_all_ordered_extents(struct btrfs_fs_info *fs_info)
 	while (!list_empty(&splice)) {
 		root = list_first_entry(&splice, struct btrfs_root,
 					ordered_root);
-		list_del_init(&root->ordered_root);
+		list_move_tail(&root->ordered_root,
+			       &fs_info->ordered_roots);
 
 		btrfs_destroy_ordered_extents(root);
 
-- 
cgit 


From c16ce1901431629fbe5b9387cc966d62a089e4df Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Fri, 27 Sep 2013 16:38:20 -0400
Subject: Btrfs: remove all BUG_ON()'s from commit_cowonly_roots

Noticed this when forcing errors to happen during delayed ref running.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/transaction.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index a1343e81c59d..f08e22885c21 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -950,16 +950,19 @@ static noinline int commit_cowonly_roots(struct btrfs_trans_handle *trans,
 		return ret;
 
 	ret = btrfs_run_dev_stats(trans, root->fs_info);
-	WARN_ON(ret);
+	if (ret)
+		return ret;
 	ret = btrfs_run_dev_replace(trans, root->fs_info);
-	WARN_ON(ret);
-
+	if (ret)
+		return ret;
 	ret = btrfs_run_qgroups(trans, root->fs_info);
-	BUG_ON(ret);
+	if (ret)
+		return ret;
 
 	/* run_qgroups might have added some more refs */
 	ret = btrfs_run_delayed_refs(trans, root, (unsigned long)-1);
-	BUG_ON(ret);
+	if (ret)
+		return ret;
 
 	while (!list_empty(&fs_info->dirty_cowonly_roots)) {
 		next = fs_info->dirty_cowonly_roots.next;
-- 
cgit 


From 724e2315db3d59a8201d4a87c7c7a873e60e1ce0 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Mon, 30 Sep 2013 11:36:38 -0400
Subject: Btrfs: fix two use-after-free bugs with transaction cleanup

I was noticing the slab redzone stuff going off every once and a while during
transaction aborts.  This was caused by two things

1) We would walk the pending snapshots and set their error to -ECANCELED.  We
don't need to do this, the snapshot stuff waits for a transaction commit and if
there is a problem we just free our pending snapshot object and exit.  Doing
this was causing us to touch the pending snapshot object after the thing had
already been freed.

2) We were freeing the transaction manually with wanton disregard for it's
use_count reference counter.  To fix this I cleaned up the transaction freeing
loop to either wait for the transaction commit to finish if it was in the middle
of that (since it will be cleaned and freed up there) or to do the cleanup
oursevles.

I also moved the global "kill all things dirty everywhere" stuff outside of the
transaction cleanup loop since that only needs to be done once.  With this patch
I'm no longer seeing slab corruption because of use after frees.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/disk-io.c     | 111 ++++++++++++++++++-------------------------------
 fs/btrfs/transaction.c |  22 +++++-----
 fs/btrfs/transaction.h |   1 +
 3 files changed, 52 insertions(+), 82 deletions(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 01a26e2eb310..b131d716d5a5 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -64,7 +64,6 @@ static void btrfs_destroy_ordered_operations(struct btrfs_transaction *t,
 static void btrfs_destroy_ordered_extents(struct btrfs_root *root);
 static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
 				      struct btrfs_root *root);
-static void btrfs_evict_pending_snapshots(struct btrfs_transaction *t);
 static void btrfs_destroy_delalloc_inodes(struct btrfs_root *root);
 static int btrfs_destroy_marked_extents(struct btrfs_root *root,
 					struct extent_io_tree *dirty_pages,
@@ -3915,24 +3914,6 @@ static int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans,
 	return ret;
 }
 
-static void btrfs_evict_pending_snapshots(struct btrfs_transaction *t)
-{
-	struct btrfs_pending_snapshot *snapshot;
-	struct list_head splice;
-
-	INIT_LIST_HEAD(&splice);
-
-	list_splice_init(&t->pending_snapshots, &splice);
-
-	while (!list_empty(&splice)) {
-		snapshot = list_entry(splice.next,
-				      struct btrfs_pending_snapshot,
-				      list);
-		snapshot->error = -ECANCELED;
-		list_del_init(&snapshot->list);
-	}
-}
-
 static void btrfs_destroy_delalloc_inodes(struct btrfs_root *root)
 {
 	struct btrfs_inode *btrfs_inode;
@@ -4062,6 +4043,8 @@ again:
 void btrfs_cleanup_one_transaction(struct btrfs_transaction *cur_trans,
 				   struct btrfs_root *root)
 {
+	btrfs_destroy_ordered_operations(cur_trans, root);
+
 	btrfs_destroy_delayed_refs(cur_trans, root);
 	btrfs_block_rsv_release(root, &root->fs_info->trans_block_rsv,
 				cur_trans->dirty_pages.dirty_bytes);
@@ -4069,8 +4052,6 @@ void btrfs_cleanup_one_transaction(struct btrfs_transaction *cur_trans,
 	cur_trans->state = TRANS_STATE_COMMIT_START;
 	wake_up(&root->fs_info->transaction_blocked_wait);
 
-	btrfs_evict_pending_snapshots(cur_trans);
-
 	cur_trans->state = TRANS_STATE_UNBLOCKED;
 	wake_up(&root->fs_info->transaction_wait);
 
@@ -4094,63 +4075,51 @@ void btrfs_cleanup_one_transaction(struct btrfs_transaction *cur_trans,
 static int btrfs_cleanup_transaction(struct btrfs_root *root)
 {
 	struct btrfs_transaction *t;
-	LIST_HEAD(list);
 
 	mutex_lock(&root->fs_info->transaction_kthread_mutex);
 
 	spin_lock(&root->fs_info->trans_lock);
-	list_splice_init(&root->fs_info->trans_list, &list);
-	root->fs_info->running_transaction = NULL;
-	spin_unlock(&root->fs_info->trans_lock);
-
-	while (!list_empty(&list)) {
-		t = list_entry(list.next, struct btrfs_transaction, list);
-
-		btrfs_destroy_ordered_operations(t, root);
-
-		btrfs_destroy_all_ordered_extents(root->fs_info);
-
-		btrfs_destroy_delayed_refs(t, root);
-
-		/*
-		 *  FIXME: cleanup wait for commit
-		 *  We needn't acquire the lock here, because we are during
-		 *  the umount, there is no other task which will change it.
-		 */
-		t->state = TRANS_STATE_COMMIT_START;
-		smp_mb();
-		if (waitqueue_active(&root->fs_info->transaction_blocked_wait))
-			wake_up(&root->fs_info->transaction_blocked_wait);
-
-		btrfs_evict_pending_snapshots(t);
-
-		t->state = TRANS_STATE_UNBLOCKED;
-		smp_mb();
-		if (waitqueue_active(&root->fs_info->transaction_wait))
-			wake_up(&root->fs_info->transaction_wait);
-
-		btrfs_destroy_delayed_inodes(root);
-		btrfs_assert_delayed_root_empty(root);
-
-		btrfs_destroy_all_delalloc_inodes(root->fs_info);
-
-		btrfs_destroy_marked_extents(root, &t->dirty_pages,
-					     EXTENT_DIRTY);
-
-		btrfs_destroy_pinned_extent(root,
-					    root->fs_info->pinned_extents);
-
-		t->state = TRANS_STATE_COMPLETED;
-		smp_mb();
-		if (waitqueue_active(&t->commit_wait))
-			wake_up(&t->commit_wait);
+	while (!list_empty(&root->fs_info->trans_list)) {
+		t = list_first_entry(&root->fs_info->trans_list,
+				     struct btrfs_transaction, list);
+		if (t->state >= TRANS_STATE_COMMIT_START) {
+			atomic_inc(&t->use_count);
+			spin_unlock(&root->fs_info->trans_lock);
+			btrfs_wait_for_commit(root, t->transid);
+			btrfs_put_transaction(t);
+			spin_lock(&root->fs_info->trans_lock);
+			continue;
+		}
+		if (t == root->fs_info->running_transaction) {
+			t->state = TRANS_STATE_COMMIT_DOING;
+			spin_unlock(&root->fs_info->trans_lock);
+			/*
+			 * We wait for 0 num_writers since we don't hold a trans
+			 * handle open currently for this transaction.
+			 */
+			wait_event(t->writer_wait,
+				   atomic_read(&t->num_writers) == 0);
+		} else {
+			spin_unlock(&root->fs_info->trans_lock);
+		}
+		btrfs_cleanup_one_transaction(t, root);
 
-		atomic_set(&t->use_count, 0);
+		spin_lock(&root->fs_info->trans_lock);
+		if (t == root->fs_info->running_transaction)
+			root->fs_info->running_transaction = NULL;
 		list_del_init(&t->list);
-		memset(t, 0, sizeof(*t));
-		kmem_cache_free(btrfs_transaction_cachep, t);
-	}
+		spin_unlock(&root->fs_info->trans_lock);
 
+		btrfs_put_transaction(t);
+		trace_btrfs_transaction_commit(root);
+		spin_lock(&root->fs_info->trans_lock);
+	}
+	spin_unlock(&root->fs_info->trans_lock);
+	btrfs_destroy_all_ordered_extents(root->fs_info);
+	btrfs_destroy_delayed_inodes(root);
+	btrfs_assert_delayed_root_empty(root);
+	btrfs_destroy_pinned_extent(root, root->fs_info->pinned_extents);
+	btrfs_destroy_all_delalloc_inodes(root->fs_info);
 	mutex_unlock(&root->fs_info->transaction_kthread_mutex);
 
 	return 0;
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index f08e22885c21..134039fd59bb 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -57,7 +57,7 @@ static unsigned int btrfs_blocked_trans_types[TRANS_STATE_MAX] = {
 					   __TRANS_JOIN_NOLOCK),
 };
 
-static void put_transaction(struct btrfs_transaction *transaction)
+void btrfs_put_transaction(struct btrfs_transaction *transaction)
 {
 	WARN_ON(atomic_read(&transaction->use_count) == 0);
 	if (atomic_dec_and_test(&transaction->use_count)) {
@@ -332,7 +332,7 @@ static void wait_current_trans(struct btrfs_root *root)
 		wait_event(root->fs_info->transaction_wait,
 			   cur_trans->state >= TRANS_STATE_UNBLOCKED ||
 			   cur_trans->aborted);
-		put_transaction(cur_trans);
+		btrfs_put_transaction(cur_trans);
 	} else {
 		spin_unlock(&root->fs_info->trans_lock);
 	}
@@ -610,7 +610,7 @@ int btrfs_wait_for_commit(struct btrfs_root *root, u64 transid)
 	}
 
 	wait_for_commit(root, cur_trans);
-	put_transaction(cur_trans);
+	btrfs_put_transaction(cur_trans);
 out:
 	return ret;
 }
@@ -735,7 +735,7 @@ static int __btrfs_end_transaction(struct btrfs_trans_handle *trans,
 	smp_mb();
 	if (waitqueue_active(&cur_trans->writer_wait))
 		wake_up(&cur_trans->writer_wait);
-	put_transaction(cur_trans);
+	btrfs_put_transaction(cur_trans);
 
 	if (current->journal_info == trans)
 		current->journal_info = NULL;
@@ -1515,7 +1515,7 @@ int btrfs_commit_transaction_async(struct btrfs_trans_handle *trans,
 	if (current->journal_info == trans)
 		current->journal_info = NULL;
 
-	put_transaction(cur_trans);
+	btrfs_put_transaction(cur_trans);
 	return 0;
 }
 
@@ -1559,8 +1559,8 @@ static void cleanup_transaction(struct btrfs_trans_handle *trans,
 
 	if (trans->type & __TRANS_FREEZABLE)
 		sb_end_intwrite(root->fs_info->sb);
-	put_transaction(cur_trans);
-	put_transaction(cur_trans);
+	btrfs_put_transaction(cur_trans);
+	btrfs_put_transaction(cur_trans);
 
 	trace_btrfs_transaction_commit(root);
 
@@ -1676,7 +1676,7 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
 
 		wait_for_commit(root, cur_trans);
 
-		put_transaction(cur_trans);
+		btrfs_put_transaction(cur_trans);
 
 		return ret;
 	}
@@ -1693,7 +1693,7 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
 
 			wait_for_commit(root, prev_trans);
 
-			put_transaction(prev_trans);
+			btrfs_put_transaction(prev_trans);
 		} else {
 			spin_unlock(&root->fs_info->trans_lock);
 		}
@@ -1892,8 +1892,8 @@ int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
 	list_del_init(&cur_trans->list);
 	spin_unlock(&root->fs_info->trans_lock);
 
-	put_transaction(cur_trans);
-	put_transaction(cur_trans);
+	btrfs_put_transaction(cur_trans);
+	btrfs_put_transaction(cur_trans);
 
 	if (trans->type & __TRANS_FREEZABLE)
 		sb_end_intwrite(root->fs_info->sb);
diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h
index 5c2af8491621..306f88ae1de3 100644
--- a/fs/btrfs/transaction.h
+++ b/fs/btrfs/transaction.h
@@ -166,4 +166,5 @@ int btrfs_wait_marked_extents(struct btrfs_root *root,
 				struct extent_io_tree *dirty_pages, int mark);
 int btrfs_transaction_blocked(struct btrfs_fs_info *info);
 int btrfs_transaction_in_commit(struct btrfs_fs_info *info);
+void btrfs_put_transaction(struct btrfs_transaction *transaction);
 #endif
-- 
cgit 


From 0a4e558609dd4df30a58a07d9eb14c5ddc2c1241 Mon Sep 17 00:00:00 2001
From: Ross Kirk <ross.kirk@gmail.com>
Date: Tue, 24 Sep 2013 10:12:38 +0100
Subject: btrfs: remove unused parameter from btrfs_header_fsid

Remove unused parameter, 'eb'. Unused since introduction in
5f39d397dfbe140a14edecd4e73c34ce23c4f9ee

Updated to be rebased against current upstream and correct diff supplied this time!

Signed-off-by: Ross Kirk <ross.kirk@gmail.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/ctree.c   | 10 +++++-----
 fs/btrfs/ctree.h   |  2 +-
 fs/btrfs/disk-io.c |  6 +++---
 fs/btrfs/ioctl.c   |  2 +-
 4 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 6932686b61cf..6c5239b55495 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -274,7 +274,7 @@ int btrfs_copy_root(struct btrfs_trans_handle *trans,
 	else
 		btrfs_set_header_owner(cow, new_root_objectid);
 
-	write_extent_buffer(cow, root->fs_info->fsid, btrfs_header_fsid(cow),
+	write_extent_buffer(cow, root->fs_info->fsid, btrfs_header_fsid(),
 			    BTRFS_FSID_SIZE);
 
 	WARN_ON(btrfs_header_generation(buf) > trans->transid);
@@ -996,7 +996,7 @@ static noinline int __btrfs_cow_block(struct btrfs_trans_handle *trans,
 	else
 		btrfs_set_header_owner(cow, root->root_key.objectid);
 
-	write_extent_buffer(cow, root->fs_info->fsid, btrfs_header_fsid(cow),
+	write_extent_buffer(cow, root->fs_info->fsid, btrfs_header_fsid(),
 			    BTRFS_FSID_SIZE);
 
 	ret = update_ref_for_cow(trans, root, buf, cow, &last_ref);
@@ -3152,7 +3152,7 @@ static noinline int insert_new_root(struct btrfs_trans_handle *trans,
 	btrfs_set_header_backref_rev(c, BTRFS_MIXED_BACKREF_REV);
 	btrfs_set_header_owner(c, root->root_key.objectid);
 
-	write_extent_buffer(c, root->fs_info->fsid, btrfs_header_fsid(c),
+	write_extent_buffer(c, root->fs_info->fsid, btrfs_header_fsid(),
 			    BTRFS_FSID_SIZE);
 
 	write_extent_buffer(c, root->fs_info->chunk_tree_uuid,
@@ -3291,7 +3291,7 @@ static noinline int split_node(struct btrfs_trans_handle *trans,
 	btrfs_set_header_backref_rev(split, BTRFS_MIXED_BACKREF_REV);
 	btrfs_set_header_owner(split, root->root_key.objectid);
 	write_extent_buffer(split, root->fs_info->fsid,
-			    btrfs_header_fsid(split), BTRFS_FSID_SIZE);
+			    btrfs_header_fsid(), BTRFS_FSID_SIZE);
 	write_extent_buffer(split, root->fs_info->chunk_tree_uuid,
 			    btrfs_header_chunk_tree_uuid(split),
 			    BTRFS_UUID_SIZE);
@@ -4046,7 +4046,7 @@ again:
 	btrfs_set_header_owner(right, root->root_key.objectid);
 	btrfs_set_header_level(right, 0);
 	write_extent_buffer(right, root->fs_info->fsid,
-			    btrfs_header_fsid(right), BTRFS_FSID_SIZE);
+			    btrfs_header_fsid(), BTRFS_FSID_SIZE);
 
 	write_extent_buffer(right, root->fs_info->chunk_tree_uuid,
 			    btrfs_header_chunk_tree_uuid(right),
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index ee0b8aa82828..ee8972b9f1ab 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -2667,7 +2667,7 @@ static inline void btrfs_set_header_backref_rev(struct extent_buffer *eb,
 	btrfs_set_header_flags(eb, flags);
 }
 
-static inline unsigned long btrfs_header_fsid(struct extent_buffer *eb)
+static inline unsigned long btrfs_header_fsid(void)
 {
 	return offsetof(struct btrfs_header, fsid);
 }
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index b131d716d5a5..ade6c0e79616 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -495,7 +495,7 @@ static int check_tree_block_fsid(struct btrfs_root *root,
 	u8 fsid[BTRFS_UUID_SIZE];
 	int ret = 1;
 
-	read_extent_buffer(eb, fsid, btrfs_header_fsid(eb), BTRFS_FSID_SIZE);
+	read_extent_buffer(eb, fsid, btrfs_header_fsid(), BTRFS_FSID_SIZE);
 	while (fs_devices) {
 		if (!memcmp(fsid, fs_devices->fsid, BTRFS_FSID_SIZE)) {
 			ret = 0;
@@ -1311,7 +1311,7 @@ struct btrfs_root *btrfs_create_tree(struct btrfs_trans_handle *trans,
 	btrfs_set_header_owner(leaf, objectid);
 	root->node = leaf;
 
-	write_extent_buffer(leaf, fs_info->fsid, btrfs_header_fsid(leaf),
+	write_extent_buffer(leaf, fs_info->fsid, btrfs_header_fsid(),
 			    BTRFS_FSID_SIZE);
 	write_extent_buffer(leaf, fs_info->chunk_tree_uuid,
 			    btrfs_header_chunk_tree_uuid(leaf),
@@ -1398,7 +1398,7 @@ static struct btrfs_root *alloc_log_tree(struct btrfs_trans_handle *trans,
 	root->node = leaf;
 
 	write_extent_buffer(root->node, root->fs_info->fsid,
-			    btrfs_header_fsid(root->node), BTRFS_FSID_SIZE);
+			    btrfs_header_fsid(), BTRFS_FSID_SIZE);
 	btrfs_mark_buffer_dirty(root->node);
 	btrfs_tree_unlock(root->node);
 	return root;
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 385c58f2bba1..2c47e1a400a9 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -436,7 +436,7 @@ static noinline int create_subvol(struct inode *dir,
 	btrfs_set_header_backref_rev(leaf, BTRFS_MIXED_BACKREF_REV);
 	btrfs_set_header_owner(leaf, objectid);
 
-	write_extent_buffer(leaf, root->fs_info->fsid, btrfs_header_fsid(leaf),
+	write_extent_buffer(leaf, root->fs_info->fsid, btrfs_header_fsid(),
 			    BTRFS_FSID_SIZE);
 	write_extent_buffer(leaf, root->fs_info->chunk_tree_uuid,
 			    btrfs_header_chunk_tree_uuid(leaf),
-- 
cgit 


From 20dd2cbf01888a91fdd921403040a710b275a1ff Mon Sep 17 00:00:00 2001
From: Miao Xie <miaox@cn.fujitsu.com>
Date: Wed, 25 Sep 2013 21:47:45 +0800
Subject: Btrfs: fix BUG_ON() casued by the reserved space migration

When we did space balance and snapshot creation at the same time, we might
meet the following oops:
 kernel BUG at fs/btrfs/inode.c:3038!
 [SNIP]
 Call Trace:
 [<ffffffffa0411ec7>] btrfs_orphan_cleanup+0x293/0x407 [btrfs]
 [<ffffffffa042dc45>] btrfs_mksubvol.isra.28+0x259/0x373 [btrfs]
 [<ffffffffa042de85>] btrfs_ioctl_snap_create_transid+0x126/0x156 [btrfs]
 [<ffffffffa042dff1>] btrfs_ioctl_snap_create_v2+0xd0/0x121 [btrfs]
 [<ffffffffa0430b2c>] btrfs_ioctl+0x414/0x1854 [btrfs]
 [<ffffffff813b60b7>] ? __do_page_fault+0x305/0x379
 [<ffffffff811215a9>] vfs_ioctl+0x1d/0x39
 [<ffffffff81121d7c>] do_vfs_ioctl+0x32d/0x3e2
 [<ffffffff81057fe7>] ? finish_task_switch+0x80/0xb8
 [<ffffffff81121e88>] SyS_ioctl+0x57/0x83
 [<ffffffff813b39ff>] ? do_device_not_available+0x12/0x14
 [<ffffffff813b99c2>] system_call_fastpath+0x16/0x1b
 [SNIP]
 RIP  [<ffffffffa040da40>] btrfs_orphan_add+0xc3/0x126 [btrfs]

The reason of the problem is that the relocation root creation stole
the reserved space, which was reserved for orphan item deletion.

There are several ways to fix this problem, one is to increasing
the reserved space size of the space balace, and then we can use
that space to create the relocation tree for each fs/file trees.
But it is hard to calculate the suitable size because we doesn't
know how many fs/file trees we need relocate.

We fixed this problem by reserving the space for relocation root creation
actively since the space it need is very small (one tree block, used for
root node copy), then we use that reserved space to create the
relocation tree. If we don't reserve space for relocation tree creation,
we will use the reserved space of the balance.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/relocation.c  |  6 ++++--
 fs/btrfs/transaction.c | 24 +++++++++++++++++++++++-
 fs/btrfs/transaction.h |  1 +
 3 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 0359eecac95d..a945374993f7 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -1383,6 +1383,7 @@ int btrfs_init_reloc_root(struct btrfs_trans_handle *trans,
 {
 	struct btrfs_root *reloc_root;
 	struct reloc_control *rc = root->fs_info->reloc_ctl;
+	struct btrfs_block_rsv *rsv;
 	int clear_rsv = 0;
 	int ret;
 
@@ -1396,13 +1397,14 @@ int btrfs_init_reloc_root(struct btrfs_trans_handle *trans,
 	    root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID)
 		return 0;
 
-	if (!trans->block_rsv) {
+	if (!trans->reloc_reserved) {
+		rsv = trans->block_rsv;
 		trans->block_rsv = rc->block_rsv;
 		clear_rsv = 1;
 	}
 	reloc_root = create_reloc_root(trans, root, root->root_key.objectid);
 	if (clear_rsv)
-		trans->block_rsv = NULL;
+		trans->block_rsv = rsv;
 
 	ret = __add_reloc_root(reloc_root);
 	BUG_ON(ret < 0);
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 134039fd59bb..a213bafe68ec 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -353,6 +353,17 @@ static int may_wait_transaction(struct btrfs_root *root, int type)
 	return 0;
 }
 
+static inline bool need_reserve_reloc_root(struct btrfs_root *root)
+{
+	if (!root->fs_info->reloc_ctl ||
+	    !root->ref_cows ||
+	    root->root_key.objectid == BTRFS_TREE_RELOC_OBJECTID ||
+	    root->reloc_root)
+		return false;
+
+	return true;
+}
+
 static struct btrfs_trans_handle *
 start_transaction(struct btrfs_root *root, u64 num_items, unsigned int type,
 		  enum btrfs_reserve_flush_enum flush)
@@ -360,8 +371,9 @@ start_transaction(struct btrfs_root *root, u64 num_items, unsigned int type,
 	struct btrfs_trans_handle *h;
 	struct btrfs_transaction *cur_trans;
 	u64 num_bytes = 0;
-	int ret;
 	u64 qgroup_reserved = 0;
+	bool reloc_reserved = false;
+	int ret;
 
 	if (test_bit(BTRFS_FS_STATE_ERROR, &root->fs_info->fs_state))
 		return ERR_PTR(-EROFS);
@@ -390,6 +402,14 @@ start_transaction(struct btrfs_root *root, u64 num_items, unsigned int type,
 		}
 
 		num_bytes = btrfs_calc_trans_metadata_size(root, num_items);
+		/*
+		 * Do the reservation for the relocation root creation
+		 */
+		if (unlikely(need_reserve_reloc_root(root))) {
+			num_bytes += root->nodesize;
+			reloc_reserved = true;
+		}
+
 		ret = btrfs_block_rsv_add(root,
 					  &root->fs_info->trans_block_rsv,
 					  num_bytes, flush);
@@ -451,6 +471,7 @@ again:
 	h->delayed_ref_elem.seq = 0;
 	h->type = type;
 	h->allocating_chunk = false;
+	h->reloc_reserved = false;
 	INIT_LIST_HEAD(&h->qgroup_ref_list);
 	INIT_LIST_HEAD(&h->new_bgs);
 
@@ -466,6 +487,7 @@ again:
 					      h->transid, num_bytes, 1);
 		h->block_rsv = &root->fs_info->trans_block_rsv;
 		h->bytes_reserved = num_bytes;
+		h->reloc_reserved = reloc_reserved;
 	}
 	h->qgroup_reserved = qgroup_reserved;
 
diff --git a/fs/btrfs/transaction.h b/fs/btrfs/transaction.h
index 306f88ae1de3..7657d115067d 100644
--- a/fs/btrfs/transaction.h
+++ b/fs/btrfs/transaction.h
@@ -92,6 +92,7 @@ struct btrfs_trans_handle {
 	short aborted;
 	short adding_csums;
 	bool allocating_chunk;
+	bool reloc_reserved;
 	unsigned int type;
 	/*
 	 * this root is only needed to validate that the root passed to
-- 
cgit 


From fa7c14947abea7b30f661d902c9a515056be6d90 Mon Sep 17 00:00:00 2001
From: Miao Xie <miaox@cn.fujitsu.com>
Date: Thu, 26 Sep 2013 13:15:27 +0800
Subject: Btrfs: improve jitter performance of the sequential buffered write

The performance was slowed down sometimes when we ran sysbench to measure
the performance of the sequential buffered write by 2 or more threads.

It was because the write order of the test threads might be confused
by the task scheduler, and the coming write would be beyond the end of
the file, in this case, we need insert dummy file extents and create
a hole for the area we skip. But in order to avoid the ongoing ordered
extents which are in the area, we need wait for them. Unfortunately,
the current code doesn't check if there are ordered extents in the area
or not, try to find and flush the dirty pages directly, but in fact,
there is no dirty page in that area, this step of the current code is
unnecessary, and just wastes time. Sometimes, it would increase
the contention of some locks, and makes the performance slow down suddenly.

So we remove the ordered extent flush function before the check, and flush
the dirty pages and wait for the ordered extents only when we find them.

According to my test, we got 1-2 times of the performance regression when
we ran the test by 10 times before applying this patch. After applying
this patch, the regression went away.

Test Environment:
 CPU:		1CPU * 4Cores
 Memory:	6GB
 Partition:	20GB

Test Command:
 # sysbench --test=fileio --file-total-size=16G --file-test-mode=seqwr \
 > --num-threads=512 --file-block-size=16384 --max-time=60 --max-requests=0 run

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/inode.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index c0dcb4c3d72d..1ca49eaba3bb 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4239,15 +4239,16 @@ int btrfs_cont_expand(struct inode *inode, loff_t oldsize, loff_t size)
 
 	while (1) {
 		struct btrfs_ordered_extent *ordered;
-		btrfs_wait_ordered_range(inode, hole_start,
-					 block_end - hole_start);
+
 		lock_extent_bits(io_tree, hole_start, block_end - 1, 0,
 				 &cached_state);
-		ordered = btrfs_lookup_ordered_extent(inode, hole_start);
+		ordered = btrfs_lookup_ordered_range(inode, hole_start,
+						     block_end - hole_start);
 		if (!ordered)
 			break;
 		unlock_extent_cached(io_tree, hole_start, block_end - 1,
 				     &cached_state, GFP_NOFS);
+		btrfs_start_ordered_extent(inode, ordered, 1);
 		btrfs_put_ordered_extent(ordered);
 	}
 
-- 
cgit 


From 7d3d1744f8a7d62e4875bd69cc2192a939813880 Mon Sep 17 00:00:00 2001
From: Liu Bo <bo.li.liu@oracle.com>
Date: Sun, 29 Sep 2013 10:33:16 +0800
Subject: Btrfs: fix memory leak of chunks' extent map

As we're hold a ref on looking up the extent map, we need to drop the ref
before returning to callers.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/volumes.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 043b215769c2..b691f375d837 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -4488,6 +4488,7 @@ int btrfs_num_copies(struct btrfs_fs_info *fs_info, u64 logical, u64 len)
 		btrfs_crit(fs_info, "Invalid mapping for %Lu-%Lu, got "
 			    "%Lu-%Lu\n", logical, logical+len, em->start,
 			    em->start + em->len);
+		free_extent_map(em);
 		return 1;
 	}
 
@@ -4668,6 +4669,7 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
 		btrfs_crit(fs_info, "found a bad mapping, wanted %Lu, "
 			   "found %Lu-%Lu\n", logical, em->start,
 			   em->start + em->len);
+		free_extent_map(em);
 		return -EINVAL;
 	}
 
-- 
cgit 


From 6174d3cb43aa974d0c8590a3e628ac35ab0bbc13 Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Tue, 1 Oct 2013 16:13:42 +0100
Subject: Btrfs: remove unused max_key arg from btrfs_search_forward

It is not used for anything.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/ctree.c       |  1 -
 fs/btrfs/ctree.h       |  1 -
 fs/btrfs/ioctl.c       | 16 ++--------------
 fs/btrfs/tree-defrag.c |  2 +-
 fs/btrfs/tree-log.c    |  9 ++-------
 fs/btrfs/uuid-tree.c   |  6 +-----
 fs/btrfs/volumes.c     |  2 +-
 7 files changed, 7 insertions(+), 30 deletions(-)

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 6c5239b55495..33e9dbdd043d 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -4870,7 +4870,6 @@ static int btrfs_prev_leaf(struct btrfs_root *root, struct btrfs_path *path)
  * was nothing in the tree that matched the search criteria.
  */
 int btrfs_search_forward(struct btrfs_root *root, struct btrfs_key *min_key,
-			 struct btrfs_key *max_key,
 			 struct btrfs_path *path,
 			 u64 min_trans)
 {
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index ee8972b9f1ab..9ca15a84cc5a 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3309,7 +3309,6 @@ int btrfs_find_next_key(struct btrfs_root *root, struct btrfs_path *path,
 			struct btrfs_key *key, int lowest_level,
 			u64 min_trans);
 int btrfs_search_forward(struct btrfs_root *root, struct btrfs_key *min_key,
-			 struct btrfs_key *max_key,
 			 struct btrfs_path *path,
 			 u64 min_trans);
 enum btrfs_compare_tree_result {
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 2c47e1a400a9..98d4ffef961e 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -842,7 +842,6 @@ static int find_new_extents(struct btrfs_root *root,
 {
 	struct btrfs_path *path;
 	struct btrfs_key min_key;
-	struct btrfs_key max_key;
 	struct extent_buffer *leaf;
 	struct btrfs_file_extent_item *extent;
 	int type;
@@ -857,15 +856,10 @@ static int find_new_extents(struct btrfs_root *root,
 	min_key.type = BTRFS_EXTENT_DATA_KEY;
 	min_key.offset = *off;
 
-	max_key.objectid = ino;
-	max_key.type = (u8)-1;
-	max_key.offset = (u64)-1;
-
 	path->keep_locks = 1;
 
 	while(1) {
-		ret = btrfs_search_forward(root, &min_key, &max_key,
-					   path, newer_than);
+		ret = btrfs_search_forward(root, &min_key, path, newer_than);
 		if (ret != 0)
 			goto none;
 		if (min_key.objectid != ino)
@@ -1893,7 +1887,6 @@ static noinline int search_ioctl(struct inode *inode,
 {
 	struct btrfs_root *root;
 	struct btrfs_key key;
-	struct btrfs_key max_key;
 	struct btrfs_path *path;
 	struct btrfs_ioctl_search_key *sk = &args->key;
 	struct btrfs_fs_info *info = BTRFS_I(inode)->root->fs_info;
@@ -1925,15 +1918,10 @@ static noinline int search_ioctl(struct inode *inode,
 	key.type = sk->min_type;
 	key.offset = sk->min_offset;
 
-	max_key.objectid = sk->max_objectid;
-	max_key.type = sk->max_type;
-	max_key.offset = sk->max_offset;
-
 	path->keep_locks = 1;
 
 	while(1) {
-		ret = btrfs_search_forward(root, &key, &max_key, path,
-					   sk->min_transid);
+		ret = btrfs_search_forward(root, &key, path, sk->min_transid);
 		if (ret != 0) {
 			if (ret > 0)
 				ret = 0;
diff --git a/fs/btrfs/tree-defrag.c b/fs/btrfs/tree-defrag.c
index 94e05c1f118a..cbaa73c871a9 100644
--- a/fs/btrfs/tree-defrag.c
+++ b/fs/btrfs/tree-defrag.c
@@ -85,7 +85,7 @@ int btrfs_defrag_leaves(struct btrfs_trans_handle *trans,
 
 	path->keep_locks = 1;
 
-	ret = btrfs_search_forward(root, &key, NULL, path, min_trans);
+	ret = btrfs_search_forward(root, &key, path, min_trans);
 	if (ret < 0)
 		goto out;
 	if (ret > 0) {
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 79f057c0619a..8ac96c261a11 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -2867,7 +2867,6 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,
 			  u64 min_offset, u64 *last_offset_ret)
 {
 	struct btrfs_key min_key;
-	struct btrfs_key max_key;
 	struct btrfs_root *log = root->log_root;
 	struct extent_buffer *src;
 	int err = 0;
@@ -2879,9 +2878,6 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,
 	u64 ino = btrfs_ino(inode);
 
 	log = root->log_root;
-	max_key.objectid = ino;
-	max_key.offset = (u64)-1;
-	max_key.type = key_type;
 
 	min_key.objectid = ino;
 	min_key.type = key_type;
@@ -2889,8 +2885,7 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,
 
 	path->keep_locks = 1;
 
-	ret = btrfs_search_forward(root, &min_key, &max_key,
-				   path, trans->transid);
+	ret = btrfs_search_forward(root, &min_key, path, trans->transid);
 
 	/*
 	 * we didn't find anything from this transaction, see if there
@@ -3719,7 +3714,7 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans,
 
 	while (1) {
 		ins_nr = 0;
-		ret = btrfs_search_forward(root, &min_key, &max_key,
+		ret = btrfs_search_forward(root, &min_key,
 					   path, trans->transid);
 		if (ret != 0)
 			break;
diff --git a/fs/btrfs/uuid-tree.c b/fs/btrfs/uuid-tree.c
index dd0dea3766f7..fbda90004fe9 100644
--- a/fs/btrfs/uuid-tree.c
+++ b/fs/btrfs/uuid-tree.c
@@ -260,7 +260,6 @@ int btrfs_uuid_tree_iterate(struct btrfs_fs_info *fs_info,
 {
 	struct btrfs_root *root = fs_info->uuid_root;
 	struct btrfs_key key;
-	struct btrfs_key max_key;
 	struct btrfs_path *path;
 	int ret = 0;
 	struct extent_buffer *leaf;
@@ -277,13 +276,10 @@ int btrfs_uuid_tree_iterate(struct btrfs_fs_info *fs_info,
 	key.objectid = 0;
 	key.type = 0;
 	key.offset = 0;
-	max_key.objectid = (u64)-1;
-	max_key.type = (u8)-1;
-	max_key.offset = (u64)-1;
 
 again_search_slot:
 	path->keep_locks = 1;
-	ret = btrfs_search_forward(root, &key, &max_key, path, 0);
+	ret = btrfs_search_forward(root, &key, path, 0);
 	if (ret) {
 		if (ret > 0)
 			ret = 0;
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index b691f375d837..c846cc8eb32c 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -3488,7 +3488,7 @@ static int btrfs_uuid_scan_kthread(void *data)
 	path->keep_locks = 1;
 
 	while (1) {
-		ret = btrfs_search_forward(root, &key, &max_key, path, 0);
+		ret = btrfs_search_forward(root, &key, path, 0);
 		if (ret) {
 			if (ret > 0)
 				ret = 0;
-- 
cgit 


From 3d41d70252234db153ea1b037052278ff5786ad5 Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Tue, 1 Oct 2013 17:06:53 +0100
Subject: Btrfs: remove unnecessary tree search when logging inode

In tree-log.c:btrfs_log_inode(), we keep calling btrfs_search_forward()
until it returns a key whose objectid is higher than our inode or until
the key's type is higher than our maximum allowed type.

At the end of the loop, we increment our mininum search key's objectid
and type regardless of our desired target objectid and maximum desired
type, which causes another loop iteration that will call again
btrfs_search_forward() just to figure out we've gone beyond our maximum
key and exit the loop. Therefore while incrementing our minimum key,
don't do it blindly and exit the loop immiediately if the next search
key's objectid or type is beyond what we seek.

Also after incrementing the type, set the key's offset to 0, which was
missing and could make us loose some of the inode's items.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/tree-log.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 8ac96c261a11..964c583ea900 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -3764,14 +3764,14 @@ next_slot:
 		}
 		btrfs_release_path(path);
 
-		if (min_key.offset < (u64)-1)
+		if (min_key.offset < (u64)-1) {
 			min_key.offset++;
-		else if (min_key.type < (u8)-1)
+		} else if (min_key.type < max_key.type) {
 			min_key.type++;
-		else if (min_key.objectid < (u64)-1)
-			min_key.objectid++;
-		else
+			min_key.offset = 0;
+		} else {
 			break;
+		}
 	}
 	if (ins_nr) {
 		ret = copy_items(trans, inode, dst_path, src, ins_start_slot,
-- 
cgit 


From 778ba82b1796e75e719a52679ae431371ca73988 Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Sun, 6 Oct 2013 22:22:33 +0100
Subject: Btrfs: improve inode hash function/inode lookup

Currently the hash value used for adding an inode to the VFS's inode
hash table consists of the plain inode number, which is a 64 bits
integer. This results in hash table buckets (hlist_head lists) with
too many elements for at least 2 important scenarios:

1) When we have many subvolumes. Each subvolume has its own btree
   where its files and directories are added to, and each has its
   own objectid (inode number) namespace. This means that if we have
   N subvolumes, and all have inode number X associated to a file or
   directory, the corresponding inodes all map to the same hash table
   entry, resulting in a bucket (hlist_head list) with N elements;

2) On 32 bits machines. Th VFS hash values are unsigned longs, which
   are 32 bits wide on 32 bits machines, and the inode (objectid)
   numbers are 64 bits unsigned integers. We simply cast the inode
   numbers to hash values, which means that for all inodes with the
   same 32 bits lower half, the same hash bucket is used for all of
   them. For example, all inodes with a number (objectid) between
   0x0000_0000_ffff_ffff and 0xffff_ffff_ffff_ffff will end up in
   the same hash table bucket.

This change ensures the inode's hash value depends both on the
objectid (inode number) and its subvolume's (btree root) objectid.
For 32 bits machines, this change gives better entropy by making
the hash value depend on both the upper and lower 32 bits of the
64 bits hash previously computed.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/btrfs_inode.h | 20 ++++++++++++++++++++
 fs/btrfs/disk-io.c     |  2 +-
 fs/btrfs/inode.c       |  6 ++++--
 3 files changed, 25 insertions(+), 3 deletions(-)

diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index 71f074e1870b..ac0b39db27d1 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -19,6 +19,7 @@
 #ifndef __BTRFS_I__
 #define __BTRFS_I__
 
+#include <linux/hash.h>
 #include "extent_map.h"
 #include "extent_io.h"
 #include "ordered-data.h"
@@ -179,6 +180,25 @@ static inline struct btrfs_inode *BTRFS_I(struct inode *inode)
 	return container_of(inode, struct btrfs_inode, vfs_inode);
 }
 
+static inline unsigned long btrfs_inode_hash(u64 objectid,
+					     const struct btrfs_root *root)
+{
+	u64 h = objectid ^ (root->objectid * GOLDEN_RATIO_PRIME);
+
+#if BITS_PER_LONG == 32
+	h = (h >> 32) ^ (h & 0xffffffff);
+#endif
+
+	return (unsigned long)h;
+}
+
+static inline void btrfs_insert_inode_hash(struct inode *inode)
+{
+	unsigned long h = btrfs_inode_hash(inode->i_ino, BTRFS_I(inode)->root);
+
+	__insert_inode_hash(inode, h);
+}
+
 static inline u64 btrfs_ino(struct inode *inode)
 {
 	u64 ino = BTRFS_I(inode)->location.objectid;
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index ade6c0e79616..d205bddc7776 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2294,7 +2294,7 @@ int open_ctree(struct super_block *sb,
 	       sizeof(struct btrfs_key));
 	set_bit(BTRFS_INODE_DUMMY,
 		&BTRFS_I(fs_info->btree_inode)->runtime_flags);
-	insert_inode_hash(fs_info->btree_inode);
+	btrfs_insert_inode_hash(fs_info->btree_inode);
 
 	spin_lock_init(&fs_info->block_group_cache_lock);
 	fs_info->block_group_cache_tree = RB_ROOT;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 1ca49eaba3bb..bb242f2fb51e 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -4837,10 +4837,12 @@ static struct inode *btrfs_iget_locked(struct super_block *s,
 {
 	struct inode *inode;
 	struct btrfs_iget_args args;
+	unsigned long hashval = btrfs_inode_hash(objectid, root);
+
 	args.ino = objectid;
 	args.root = root;
 
-	inode = iget5_locked(s, objectid, btrfs_find_actor,
+	inode = iget5_locked(s, hashval, btrfs_find_actor,
 			     btrfs_init_locked_inode,
 			     (void *)&args);
 	return inode;
@@ -5460,7 +5462,7 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
 				BTRFS_INODE_NODATASUM;
 	}
 
-	insert_inode_hash(inode);
+	btrfs_insert_inode_hash(inode);
 	inode_tree_add(inode);
 
 	trace_btrfs_inode_new(inode);
-- 
cgit 


From 539f358a30d5113bad81c41a2e7ba8770d6c9f6e Mon Sep 17 00:00:00 2001
From: Ilya Dryomov <idryomov@gmail.com>
Date: Mon, 7 Oct 2013 13:42:57 +0300
Subject: Btrfs: fix the dev-replace suspend sequence

Replace progresses strictly from lower to higher offsets, and the
progress is tracked in chunks, by storing the physical offset of the
dev_extent which is being copied in the cursor_left field of
btrfs_dev_replace_item.  When we are done copying the chunk,
left_cursor is updated to point one byte past the dev_extent, so that
on resume we can skip the dev_extents that have already been copied.

There is a major bug (which goes all the way back to the inception of
dev-replace in 3.8) in the way left_cursor is bumped: the bump is done
unconditionally, without any regard to the scrub_chunk return value.
On suspend (and also on any kind of error) scrub_chunk returns early,
i.e. without completing the copy.  This leads to us skipping the chunk
that hasn't been fully copied yet when resuming.

Fix this by doing the cursor_left update only if scrub_chunk ret is 0.
(On suspend scrub_chunk returns with -ECANCELED, so this fix covers
both suspend and error cases.)

Cc: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/scrub.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index a18e0e23f6a6..f21e2df89bc2 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -2717,8 +2717,6 @@ int scrub_enumerate_chunks(struct scrub_ctx *sctx,
 		mutex_unlock(&fs_info->scrub_lock);
 		wake_up(&fs_info->scrub_pause_wait);
 
-		dev_replace->cursor_left = dev_replace->cursor_right;
-		dev_replace->item_needs_writeback = 1;
 		btrfs_put_block_group(cache);
 		if (ret)
 			break;
@@ -2732,6 +2730,9 @@ int scrub_enumerate_chunks(struct scrub_ctx *sctx,
 			break;
 		}
 
+		dev_replace->cursor_left = dev_replace->cursor_right;
+		dev_replace->item_needs_writeback = 1;
+
 		key.offset = found_key.offset + length;
 		btrfs_release_path(path);
 	}
-- 
cgit 


From 80d94fb3df2bf24a500f13181921736fa23b6c3d Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Mon, 7 Oct 2013 12:04:28 +0100
Subject: Btrfs: fix memory leaks on transaction commit failure

Structures of the types tree_mod_elem and qgroup_update are allocated
during transaction commit but were not being released if the call to
btrfs_run_delayed_items() returned an error.

Stack trace reported by kmemleak:

unreferenced object 0xffff880679f0b398 (size 128):
  comm "umount", pid 21508, jiffies 4295967793 (age 36718.112s)
  hex dump (first 32 bytes):
    60 b5 f0 79 06 88 ff ff 00 00 00 00 00 00 00 00  `..y............
    00 00 00 00 00 00 00 00 50 1c 00 00 00 00 00 00  ........P.......
  backtrace:
    [<ffffffff81742d26>] kmemleak_alloc+0x26/0x50
    [<ffffffff811889c2>] kmem_cache_alloc_trace+0x112/0x200
    [<ffffffffa046f2d3>] tree_mod_log_insert_key.constprop.45+0x93/0x150 [btrfs]
    [<ffffffffa04720f9>] __btrfs_cow_block+0x299/0x4f0 [btrfs]
    [<ffffffffa0472510>] btrfs_cow_block+0x120/0x1f0 [btrfs]
    [<ffffffffa0476679>] btrfs_search_slot+0x449/0x930 [btrfs]
    [<ffffffffa048eecf>] btrfs_lookup_inode+0x2f/0xa0 [btrfs]
    [<ffffffffa04eb49c>] __btrfs_update_delayed_inode+0x1c/0x1d0 [btrfs]
    [<ffffffffa04eb9e2>] __btrfs_run_delayed_items+0x162/0x1e0 [btrfs]
    [<ffffffffa04eba63>] btrfs_delayed_inode_exit+0x3/0x20 [btrfs]
    [<ffffffffa0499c63>] btrfs_commit_transaction+0x203/0xa50 [btrfs]
    [<ffffffffa046b519>] btrfs_sync_fs+0x69/0x110 [btrfs]
    [<ffffffff811cb210>] __sync_filesystem+0x30/0x60
    [<ffffffff811cb2bb>] sync_filesystem+0x4b/0x70
    [<ffffffff8119ce7b>] generic_shutdown_super+0x3b/0xf0
    [<ffffffff8119cfc6>] kill_anon_super+0x16/0x30
unreferenced object 0xffff880677e0dd88 (size 32):
  comm "umount", pid 21508, jiffies 4295967793 (age 36718.112s)
  hex dump (first 32 bytes):
    78 75 11 a9 06 88 ff ff 00 c0 e0 77 06 88 ff ff  xu.........w....
    40 c3 a2 70 06 88 ff ff 00 00 00 00 00 00 00 00  @..p............
  backtrace:
    [<ffffffff81742d26>] kmemleak_alloc+0x26/0x50
    [<ffffffff811889c2>] kmem_cache_alloc_trace+0x112/0x200
    [<ffffffffa04fa54f>] btrfs_qgroup_record_ref+0xf/0x90 [btrfs]
    [<ffffffffa04e1914>] btrfs_add_delayed_tree_ref+0xf4/0x170 [btrfs]
    [<ffffffffa048518a>] btrfs_free_tree_block+0x9a/0x220 [btrfs]
    [<ffffffffa0472163>] __btrfs_cow_block+0x303/0x4f0 [btrfs]
    [<ffffffffa0472510>] btrfs_cow_block+0x120/0x1f0 [btrfs]
    [<ffffffffa0476679>] btrfs_search_slot+0x449/0x930 [btrfs]
    [<ffffffffa048eecf>] btrfs_lookup_inode+0x2f/0xa0 [btrfs]
    [<ffffffffa04eb49c>] __btrfs_update_delayed_inode+0x1c/0x1d0 [btrfs]
    [<ffffffffa04eb9e2>] __btrfs_run_delayed_items+0x162/0x1e0 [btrfs]
    [<ffffffffa04eba63>] btrfs_delayed_inode_exit+0x3/0x20 [btrfs]
    [<ffffffffa0499c63>] btrfs_commit_transaction+0x203/0xa50 [btrfs]
    [<ffffffffa046b519>] btrfs_sync_fs+0x69/0x110 [btrfs]
    [<ffffffff811cb210>] __sync_filesystem+0x30/0x60
    [<ffffffff811cb2bb>] sync_filesystem+0x4b/0x70

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/transaction.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index a213bafe68ec..277fe812d047 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1600,15 +1600,19 @@ static int btrfs_flush_all_pending_stuffs(struct btrfs_trans_handle *trans,
 	int ret;
 
 	ret = btrfs_run_delayed_items(trans, root);
-	if (ret)
-		return ret;
-
 	/*
 	 * running the delayed items may have added new refs. account
 	 * them now so that they hinder processing of more delayed refs
 	 * as little as possible.
 	 */
-	btrfs_delayed_refs_qgroup_accounting(trans, root->fs_info);
+	if (ret) {
+		btrfs_delayed_refs_qgroup_accounting(trans, root->fs_info);
+		return ret;
+	}
+
+	ret = btrfs_delayed_refs_qgroup_accounting(trans, root->fs_info);
+	if (ret)
+		return ret;
 
 	/*
 	 * rename don't use btrfs_join_transaction, so, once we
-- 
cgit 


From eb58bb371a04d3bbab44ec0c5672ce69487bac1e Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Mon, 7 Oct 2013 10:45:07 -0400
Subject: Btrfs: do not free the dirty bytes from the trans block rsv on
 cleanup

The transactions should be cleaning up their reservations on failure, this just
causes us to have warnings on unmount because we go negative by free'ing
reservations that have already been free'ed.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/disk-io.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index d205bddc7776..fdc75ab09483 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -4046,8 +4046,6 @@ void btrfs_cleanup_one_transaction(struct btrfs_transaction *cur_trans,
 	btrfs_destroy_ordered_operations(cur_trans, root);
 
 	btrfs_destroy_delayed_refs(cur_trans, root);
-	btrfs_block_rsv_release(root, &root->fs_info->trans_block_rsv,
-				cur_trans->dirty_pages.dirty_bytes);
 
 	cur_trans->state = TRANS_STATE_COMMIT_START;
 	wake_up(&root->fs_info->transaction_blocked_wait);
-- 
cgit 


From 681ae50917df9fd1fae2571fb36a579d1e872b12 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Mon, 7 Oct 2013 15:11:00 -0400
Subject: Btrfs: cleanup reserved space when freeing tree log on error

On error we will wait and free the tree log at unmount without a transaction.
This means that the actual freeing of the blocks doesn't happen which means we
complain about space leaks on unmount.  So to fix this just skip the transaction
specific cleanup part of the tree log free'ing if we don't have a transaction
and that way we can free up our reserved space and our counters stay happy.
Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/tree-log.c | 47 +++++++++++++++++++++++++----------------------
 1 file changed, 25 insertions(+), 22 deletions(-)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 964c583ea900..849b72985c74 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -2151,11 +2151,13 @@ static noinline int walk_down_log_tree(struct btrfs_trans_handle *trans,
 					return ret;
 				}
 
-				btrfs_tree_lock(next);
-				btrfs_set_lock_blocking(next);
-				clean_tree_block(trans, root, next);
-				btrfs_wait_tree_block_writeback(next);
-				btrfs_tree_unlock(next);
+				if (trans) {
+					btrfs_tree_lock(next);
+					btrfs_set_lock_blocking(next);
+					clean_tree_block(trans, root, next);
+					btrfs_wait_tree_block_writeback(next);
+					btrfs_tree_unlock(next);
+				}
 
 				WARN_ON(root_owner !=
 					BTRFS_TREE_LOG_OBJECTID);
@@ -2227,11 +2229,13 @@ static noinline int walk_up_log_tree(struct btrfs_trans_handle *trans,
 
 				next = path->nodes[*level];
 
-				btrfs_tree_lock(next);
-				btrfs_set_lock_blocking(next);
-				clean_tree_block(trans, root, next);
-				btrfs_wait_tree_block_writeback(next);
-				btrfs_tree_unlock(next);
+				if (trans) {
+					btrfs_tree_lock(next);
+					btrfs_set_lock_blocking(next);
+					clean_tree_block(trans, root, next);
+					btrfs_wait_tree_block_writeback(next);
+					btrfs_tree_unlock(next);
+				}
 
 				WARN_ON(root_owner != BTRFS_TREE_LOG_OBJECTID);
 				ret = btrfs_free_and_pin_reserved_extent(root,
@@ -2301,11 +2305,13 @@ static int walk_log_tree(struct btrfs_trans_handle *trans,
 
 			next = path->nodes[orig_level];
 
-			btrfs_tree_lock(next);
-			btrfs_set_lock_blocking(next);
-			clean_tree_block(trans, log, next);
-			btrfs_wait_tree_block_writeback(next);
-			btrfs_tree_unlock(next);
+			if (trans) {
+				btrfs_tree_lock(next);
+				btrfs_set_lock_blocking(next);
+				clean_tree_block(trans, log, next);
+				btrfs_wait_tree_block_writeback(next);
+				btrfs_tree_unlock(next);
+			}
 
 			WARN_ON(log->root_key.objectid !=
 				BTRFS_TREE_LOG_OBJECTID);
@@ -2608,13 +2614,10 @@ static void free_log_tree(struct btrfs_trans_handle *trans,
 		.process_func = process_one_buffer
 	};
 
-	if (trans) {
-		ret = walk_log_tree(trans, log, &wc);
-
-		/* I don't think this can happen but just in case */
-		if (ret)
-			btrfs_abort_transaction(trans, log, ret);
-	}
+	ret = walk_log_tree(trans, log, &wc);
+	/* I don't think this can happen but just in case */
+	if (ret)
+		btrfs_abort_transaction(trans, log, ret);
 
 	while (1) {
 		ret = find_first_extent_bit(&log->dirty_log_pages,
-- 
cgit 


From 2b1360da35877cd969ed83884d8989ba778254d0 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Mon, 7 Oct 2013 15:14:44 -0400
Subject: Btrfs: free up block groups after everything

If we abort a transaction we will do the tree log cleanup at unmount, but this
happens after we free up the block groups.  This makes all the leak detection
warnings go off because we think we've leaked space but in reality we just
haven't cleaned it up yet.  So instead do the block group cleanup stuff after
free'ing the fs roots so we don't get these warnings.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/disk-io.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index fdc75ab09483..419968e3eaa0 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3637,12 +3637,12 @@ int close_ctree(struct btrfs_root *root)
 		       percpu_counter_sum(&fs_info->delalloc_bytes));
 	}
 
-	btrfs_free_block_groups(fs_info);
-
 	btrfs_stop_all_workers(fs_info);
 
 	del_fs_roots(fs_info);
 
+	btrfs_free_block_groups(fs_info);
+
 	free_root_pointers(fs_info, 1);
 
 	iput(fs_info->btree_inode);
-- 
cgit 


From 0be5dc67c445230b0889dba63defba9a9e5561b4 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Mon, 7 Oct 2013 15:18:52 -0400
Subject: Btrfs: fixup reserved trace points

In trying to track down where we were leaking reserved space I noticed our
reserve extent tracepoints are a little off.  First we were saying that the
reserved space had been alloced in btrfs_reserve_extent, which isn't the case,
this needs to be triggered when we actually allocate the space when we run the
delayed ref.  We were also missing a few places where we should have been
tracing the btrfs_reserve_extent_free tracepoint.  With these in place I was
able to put together where we were leaking reserved space.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/extent-tree.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 54ee542c705e..65401d7ef663 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -5262,6 +5262,8 @@ static int pin_down_extent(struct btrfs_root *root,
 
 	set_extent_dirty(root->fs_info->pinned_extents, bytenr,
 			 bytenr + num_bytes - 1, GFP_NOFS | __GFP_NOFAIL);
+	if (reserved)
+		trace_btrfs_reserved_extent_free(root, bytenr, num_bytes);
 	return 0;
 }
 
@@ -5965,6 +5967,7 @@ void btrfs_free_tree_block(struct btrfs_trans_handle *trans,
 
 		btrfs_add_free_space(cache, buf->start, buf->len);
 		btrfs_update_reserved_bytes(cache, buf->len, RESERVE_FREE);
+		trace_btrfs_reserved_extent_free(root, buf->start, buf->len);
 		pin = 0;
 	}
 out:
@@ -6592,8 +6595,6 @@ again:
 		}
 	}
 
-	trace_btrfs_reserved_extent_alloc(root, ins->objectid, ins->offset);
-
 	return ret;
 }
 
@@ -6705,6 +6706,7 @@ static int alloc_reserved_file_extent(struct btrfs_trans_handle *trans,
 			ins->objectid, ins->offset);
 		BUG();
 	}
+	trace_btrfs_reserved_extent_alloc(root, ins->objectid, ins->offset);
 	return ret;
 }
 
@@ -6777,6 +6779,8 @@ static int alloc_reserved_tree_block(struct btrfs_trans_handle *trans,
 			ins->objectid, ins->offset);
 		BUG();
 	}
+
+	trace_btrfs_reserved_extent_alloc(root, ins->objectid, root->leafsize);
 	return ret;
 }
 
-- 
cgit 


From 857cc2fc29cfaf4ee98fe9967bbf6a3942191136 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Mon, 7 Oct 2013 15:21:08 -0400
Subject: Btrfs: free reserved space on error in a few places

While trying to track down a reserved space leak I noticed a few places where we
won't properly clean up reserved space if we have an error, this patch fixes
those up.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/extent-tree.c | 21 +++++++++++++++++++--
 fs/btrfs/inode.c       |  2 ++
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 65401d7ef663..054b11dc8edf 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2234,8 +2234,12 @@ static int run_one_delayed_ref(struct btrfs_trans_handle *trans,
 {
 	int ret = 0;
 
-	if (trans->aborted)
+	if (trans->aborted) {
+		if (insert_reserved)
+			btrfs_pin_extent(root, node->bytenr,
+					 node->num_bytes, 1);
 		return 0;
+	}
 
 	if (btrfs_delayed_ref_is_head(node)) {
 		struct btrfs_delayed_ref_head *head;
@@ -2411,6 +2415,14 @@ static noinline int run_clustered_refs(struct btrfs_trans_handle *trans,
 				btrfs_free_delayed_extent_op(extent_op);
 
 				if (ret) {
+					/*
+					 * Need to reset must_insert_reserved if
+					 * there was an error so the abort stuff
+					 * can cleanup the reserved space
+					 * properly.
+					 */
+					if (must_insert_reserved)
+						locked_ref->must_insert_reserved = 1;
 					btrfs_debug(fs_info, "run_delayed_extent_op returned %d", ret);
 					spin_lock(&delayed_refs->lock);
 					btrfs_delayed_ref_unlock(locked_ref);
@@ -6731,13 +6743,18 @@ static int alloc_reserved_tree_block(struct btrfs_trans_handle *trans,
 		size += sizeof(*block_info);
 
 	path = btrfs_alloc_path();
-	if (!path)
+	if (!path) {
+		btrfs_free_and_pin_reserved_extent(root, ins->objectid,
+						   root->leafsize);
 		return -ENOMEM;
+	}
 
 	path->leave_spinning = 1;
 	ret = btrfs_insert_empty_item(trans, fs_info->extent_root, path,
 				      ins, size);
 	if (ret) {
+		btrfs_free_and_pin_reserved_extent(root, ins->objectid,
+						   root->leafsize);
 		btrfs_free_path(path);
 		return ret;
 	}
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index bb242f2fb51e..bba7f1a5e9f3 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8498,6 +8498,8 @@ static int __btrfs_prealloc_file_range(struct inode *inode, int mode,
 						  ins.offset, 0, 0, 0,
 						  BTRFS_FILE_EXTENT_PREALLOC);
 		if (ret) {
+			btrfs_free_reserved_extent(root, ins.objectid,
+						   ins.offset);
 			btrfs_abort_transaction(trans, root, ret);
 			if (own_trans)
 				btrfs_end_transaction(trans, root);
-- 
cgit 


From 294e30fee35d3151d100cfe59e839c2dbc16a374 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Wed, 9 Oct 2013 12:00:56 -0400
Subject: Btrfs: add tests for find_lock_delalloc_range

So both Liu and I made huge messes of find_lock_delalloc_range trying to fix
stuff, me first by fixing extent size, then him by fixing something I broke and
then me again telling him to fix it a different way.  So this is obviously a
candidate for some testing.  This patch adds a pseudo fs so we can allocate fake
inodes for tests that need an inode or pages.  Then it addes a bunch of tests to
make sure find_lock_delalloc_range is acting the way it is supposed to.  With
this patch and all of our previous patches to find_lock_delalloc_range I am sure
it is working as expected now.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/Makefile                |   2 +-
 fs/btrfs/ctree.h                 |   6 +
 fs/btrfs/extent_io.c             |   9 +-
 fs/btrfs/extent_io.h             |   6 +
 fs/btrfs/super.c                 |  14 +-
 fs/btrfs/tests/btrfs-tests.c     |  68 ++++++++++
 fs/btrfs/tests/btrfs-tests.h     |  15 +++
 fs/btrfs/tests/extent-io-tests.c | 276 +++++++++++++++++++++++++++++++++++++++
 include/uapi/linux/magic.h       |   2 +-
 9 files changed, 389 insertions(+), 9 deletions(-)
 create mode 100644 fs/btrfs/tests/btrfs-tests.c
 create mode 100644 fs/btrfs/tests/extent-io-tests.c

diff --git a/fs/btrfs/Makefile b/fs/btrfs/Makefile
index 4c7dfbfaa3b3..cac4f2d001a3 100644
--- a/fs/btrfs/Makefile
+++ b/fs/btrfs/Makefile
@@ -15,4 +15,4 @@ btrfs-$(CONFIG_BTRFS_FS_POSIX_ACL) += acl.o
 btrfs-$(CONFIG_BTRFS_FS_CHECK_INTEGRITY) += check-integrity.o
 
 btrfs-$(CONFIG_BTRFS_FS_RUN_SANITY_TESTS) += tests/free-space-tests.o \
-	tests/extent-buffer-tests.o
+	tests/extent-buffer-tests.o tests/btrfs-tests.o tests/extent-io-tests.o
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 9ca15a84cc5a..2f398062b942 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -47,6 +47,12 @@ extern struct kmem_cache *btrfs_path_cachep;
 extern struct kmem_cache *btrfs_free_space_cachep;
 struct btrfs_ordered_sum;
 
+#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
+#define STATIC noinline
+#else
+#define STATIC static noinline
+#endif
+
 #define BTRFS_MAGIC 0x4D5F53665248425FULL /* ascii _BHRfS_M, no null */
 
 #define BTRFS_MAX_MIRRORS 3
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 2bf6f46fae44..c10291cc4fd1 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -1598,11 +1598,10 @@ done:
  *
  * 1 is returned if we find something, 0 if nothing was in the tree
  */
-static noinline u64 find_lock_delalloc_range(struct inode *inode,
-					     struct extent_io_tree *tree,
-					     struct page *locked_page,
-					     u64 *start, u64 *end,
-					     u64 max_bytes)
+STATIC u64 find_lock_delalloc_range(struct inode *inode,
+				    struct extent_io_tree *tree,
+				    struct page *locked_page, u64 *start,
+				    u64 *end, u64 max_bytes)
 {
 	u64 delalloc_start;
 	u64 delalloc_end;
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index 6dbc645f1f3d..f98602eac808 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -345,4 +345,10 @@ int repair_io_failure(struct btrfs_fs_info *fs_info, u64 start,
 int end_extent_writepage(struct page *page, int err, u64 start, u64 end);
 int repair_eb_io_failure(struct btrfs_root *root, struct extent_buffer *eb,
 			 int mirror_num);
+#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
+noinline u64 find_lock_delalloc_range(struct inode *inode,
+				      struct extent_io_tree *tree,
+				      struct page *locked_page, u64 *start,
+				      u64 *end, u64 max_bytes);
+#endif
 #endif
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 0e398657d759..78041e34d15a 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1791,10 +1791,20 @@ static int btrfs_run_sanity_tests(void)
 {
 	int ret;
 
-	ret = btrfs_test_free_space_cache();
+	ret = btrfs_init_test_fs();
 	if (ret)
 		return ret;
-	return btrfs_test_extent_buffer_operations();
+
+	ret = btrfs_test_free_space_cache();
+	if (ret)
+		goto out;
+	ret = btrfs_test_extent_buffer_operations();
+	if (ret)
+		goto out;
+	ret = btrfs_test_extent_io();
+out:
+	btrfs_destroy_test_fs();
+	return ret;
 }
 
 static int __init init_btrfs_fs(void)
diff --git a/fs/btrfs/tests/btrfs-tests.c b/fs/btrfs/tests/btrfs-tests.c
new file mode 100644
index 000000000000..697d527377c1
--- /dev/null
+++ b/fs/btrfs/tests/btrfs-tests.c
@@ -0,0 +1,68 @@
+/*
+ * Copyright (C) 2013 Fusion IO.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+#include <linux/fs.h>
+#include <linux/mount.h>
+#include <linux/magic.h>
+#include "btrfs-tests.h"
+#include "../ctree.h"
+
+static struct vfsmount *test_mnt = NULL;
+
+static struct dentry *btrfs_test_mount(struct file_system_type *fs_type,
+				       int flags, const char *dev_name,
+				       void *data)
+{
+	return mount_pseudo(fs_type, "btrfs_test:", NULL, NULL, BTRFS_TEST_MAGIC);
+}
+
+static struct file_system_type test_type = {
+	.name		= "btrfs_test_fs",
+	.mount		= btrfs_test_mount,
+	.kill_sb	= kill_anon_super,
+};
+
+struct inode *btrfs_new_test_inode(void)
+{
+	return new_inode(test_mnt->mnt_sb);
+}
+
+int btrfs_init_test_fs(void)
+{
+	int ret;
+
+	ret = register_filesystem(&test_type);
+	if (ret) {
+		printk(KERN_ERR "btrfs: cannot register test file system\n");
+		return ret;
+	}
+
+	test_mnt = kern_mount(&test_type);
+	if (IS_ERR(test_mnt)) {
+		printk(KERN_ERR "btrfs: cannot mount test file system\n");
+		unregister_filesystem(&test_type);
+		return ret;
+	}
+	return 0;
+}
+
+void btrfs_destroy_test_fs(void)
+{
+	kern_unmount(test_mnt);
+	unregister_filesystem(&test_type);
+}
diff --git a/fs/btrfs/tests/btrfs-tests.h b/fs/btrfs/tests/btrfs-tests.h
index 04f2cd2ca568..e935fe5291e7 100644
--- a/fs/btrfs/tests/btrfs-tests.h
+++ b/fs/btrfs/tests/btrfs-tests.h
@@ -25,6 +25,10 @@
 
 int btrfs_test_free_space_cache(void);
 int btrfs_test_extent_buffer_operations(void);
+int btrfs_test_extent_io(void);
+int btrfs_init_test_fs(void);
+void btrfs_destroy_test_fs(void);
+struct inode *btrfs_new_test_inode(void);
 #else
 static inline int btrfs_test_free_space_cache(void)
 {
@@ -34,6 +38,17 @@ static inline int btrfs_test_extent_buffer_operations(void)
 {
 	return 0;
 }
+static inline int btrfs_init_test_fs(void)
+{
+	return 0;
+}
+static inline void btrfs_destroy_test_fs(void)
+{
+}
+static inline int btrfs_test_extent_io(void)
+{
+	return 0;
+}
 #endif
 
 #endif
diff --git a/fs/btrfs/tests/extent-io-tests.c b/fs/btrfs/tests/extent-io-tests.c
new file mode 100644
index 000000000000..7e99c2f98dd0
--- /dev/null
+++ b/fs/btrfs/tests/extent-io-tests.c
@@ -0,0 +1,276 @@
+/*
+ * Copyright (C) 2013 Fusion IO.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+#include <linux/pagemap.h>
+#include <linux/sched.h>
+#include "btrfs-tests.h"
+#include "../extent_io.h"
+
+#define PROCESS_UNLOCK		(1 << 0)
+#define PROCESS_RELEASE		(1 << 1)
+#define PROCESS_TEST_LOCKED	(1 << 2)
+
+static noinline int process_page_range(struct inode *inode, u64 start, u64 end,
+				       unsigned long flags)
+{
+	int ret;
+	struct page *pages[16];
+	unsigned long index = start >> PAGE_CACHE_SHIFT;
+	unsigned long end_index = end >> PAGE_CACHE_SHIFT;
+	unsigned long nr_pages = end_index - index + 1;
+	int i;
+	int count = 0;
+	int loops = 0;
+
+	while (nr_pages > 0) {
+		ret = find_get_pages_contig(inode->i_mapping, index,
+				     min_t(unsigned long, nr_pages,
+				     ARRAY_SIZE(pages)), pages);
+		for (i = 0; i < ret; i++) {
+			if (flags & PROCESS_TEST_LOCKED &&
+			    !PageLocked(pages[i]))
+				count++;
+			if (flags & PROCESS_UNLOCK && PageLocked(pages[i]))
+				unlock_page(pages[i]);
+			page_cache_release(pages[i]);
+			if (flags & PROCESS_RELEASE)
+				page_cache_release(pages[i]);
+		}
+		nr_pages -= ret;
+		index += ret;
+		cond_resched();
+		loops++;
+		if (loops > 100000) {
+			printk(KERN_ERR "stuck in a loop, start %Lu, end %Lu, nr_pages %lu, ret %d\n", start, end, nr_pages, ret);
+			break;
+		}
+	}
+	return count;
+}
+
+static int test_find_delalloc(void)
+{
+	struct inode *inode;
+	struct extent_io_tree tmp;
+	struct page *page;
+	struct page *locked_page = NULL;
+	unsigned long index = 0;
+	u64 total_dirty = 256 * 1024 * 1024;
+	u64 max_bytes = 128 * 1024 * 1024;
+	u64 start, end, test_start;
+	u64 found;
+	int ret = -EINVAL;
+
+	inode = btrfs_new_test_inode();
+	if (!inode) {
+		test_msg("Failed to allocate test inode\n");
+		return -ENOMEM;
+	}
+
+	extent_io_tree_init(&tmp, &inode->i_data);
+
+	/*
+	 * First go through and create and mark all of our pages dirty, we pin
+	 * everything to make sure our pages don't get evicted and screw up our
+	 * test.
+	 */
+	for (index = 0; index < (total_dirty >> PAGE_CACHE_SHIFT); index++) {
+		page = find_or_create_page(inode->i_mapping, index, GFP_NOFS);
+		if (!page) {
+			test_msg("Failed to allocate test page\n");
+			ret = -ENOMEM;
+			goto out;
+		}
+		SetPageDirty(page);
+		if (index) {
+			unlock_page(page);
+		} else {
+			page_cache_get(page);
+			locked_page = page;
+		}
+	}
+
+	/* Test this scenario
+	 * |--- delalloc ---|
+	 * |---  search  ---|
+	 */
+	set_extent_delalloc(&tmp, 0, 4095, NULL, GFP_NOFS);
+	start = 0;
+	end = 0;
+	found = find_lock_delalloc_range(inode, &tmp, locked_page, &start,
+					 &end, max_bytes);
+	if (!found) {
+		test_msg("Should have found at least one delalloc\n");
+		goto out_bits;
+	}
+	if (start != 0 || end != 4095) {
+		test_msg("Expected start 0 end 4095, got start %Lu end %Lu\n",
+			 start, end);
+		goto out_bits;
+	}
+	unlock_extent(&tmp, start, end);
+	unlock_page(locked_page);
+	page_cache_release(locked_page);
+
+	/*
+	 * Test this scenario
+	 *
+	 * |--- delalloc ---|
+	 *           |--- search ---|
+	 */
+	test_start = 64 * 1024 * 1024;
+	locked_page = find_lock_page(inode->i_mapping,
+				     test_start >> PAGE_CACHE_SHIFT);
+	if (!locked_page) {
+		test_msg("Couldn't find the locked page\n");
+		goto out_bits;
+	}
+	set_extent_delalloc(&tmp, 4096, max_bytes - 1, NULL, GFP_NOFS);
+	start = test_start;
+	end = 0;
+	found = find_lock_delalloc_range(inode, &tmp, locked_page, &start,
+					 &end, max_bytes);
+	if (!found) {
+		test_msg("Couldn't find delalloc in our range\n");
+		goto out_bits;
+	}
+	if (start != test_start || end != max_bytes - 1) {
+		test_msg("Expected start %Lu end %Lu, got start %Lu, end "
+			 "%Lu\n", test_start, max_bytes - 1, start, end);
+		goto out_bits;
+	}
+	if (process_page_range(inode, start, end,
+			       PROCESS_TEST_LOCKED | PROCESS_UNLOCK)) {
+		test_msg("There were unlocked pages in the range\n");
+		goto out_bits;
+	}
+	unlock_extent(&tmp, start, end);
+	/* locked_page was unlocked above */
+	page_cache_release(locked_page);
+
+	/*
+	 * Test this scenario
+	 * |--- delalloc ---|
+	 *                    |--- search ---|
+	 */
+	test_start = max_bytes + 4096;
+	locked_page = find_lock_page(inode->i_mapping, test_start >>
+				     PAGE_CACHE_SHIFT);
+	if (!locked_page) {
+		test_msg("Could'nt find the locked page\n");
+		goto out_bits;
+	}
+	start = test_start;
+	end = 0;
+	found = find_lock_delalloc_range(inode, &tmp, locked_page, &start,
+					 &end, max_bytes);
+	if (found) {
+		test_msg("Found range when we shouldn't have\n");
+		goto out_bits;
+	}
+	if (end != (u64)-1) {
+		test_msg("Did not return the proper end offset\n");
+		goto out_bits;
+	}
+
+	/*
+	 * Test this scenario
+	 * [------- delalloc -------|
+	 * [max_bytes]|-- search--|
+	 *
+	 * We are re-using our test_start from above since it works out well.
+	 */
+	set_extent_delalloc(&tmp, max_bytes, total_dirty - 1, NULL, GFP_NOFS);
+	start = test_start;
+	end = 0;
+	found = find_lock_delalloc_range(inode, &tmp, locked_page, &start,
+					 &end, max_bytes);
+	if (!found) {
+		test_msg("Didn't find our range\n");
+		goto out_bits;
+	}
+	if (start != test_start || end != total_dirty - 1) {
+		test_msg("Expected start %Lu end %Lu, got start %Lu end %Lu\n",
+			 test_start, total_dirty - 1, start, end);
+		goto out_bits;
+	}
+	if (process_page_range(inode, start, end,
+			       PROCESS_TEST_LOCKED | PROCESS_UNLOCK)) {
+		test_msg("Pages in range were not all locked\n");
+		goto out_bits;
+	}
+	unlock_extent(&tmp, start, end);
+
+	/*
+	 * Now to test where we run into a page that is no longer dirty in the
+	 * range we want to find.
+	 */
+	page = find_get_page(inode->i_mapping, (max_bytes + (1 * 1024 * 1024))
+			     >> PAGE_CACHE_SHIFT);
+	if (!page) {
+		test_msg("Couldn't find our page\n");
+		goto out_bits;
+	}
+	ClearPageDirty(page);
+	page_cache_release(page);
+
+	/* We unlocked it in the previous test */
+	lock_page(locked_page);
+	start = test_start;
+	end = 0;
+	/*
+	 * Currently if we fail to find dirty pages in the delalloc range we
+	 * will adjust max_bytes down to PAGE_CACHE_SIZE and then re-search.  If
+	 * this changes at any point in the future we will need to fix this
+	 * tests expected behavior.
+	 */
+	found = find_lock_delalloc_range(inode, &tmp, locked_page, &start,
+					 &end, max_bytes);
+	if (!found) {
+		test_msg("Didn't find our range\n");
+		goto out_bits;
+	}
+	if (start != test_start && end != test_start + PAGE_CACHE_SIZE - 1) {
+		test_msg("Expected start %Lu end %Lu, got start %Lu end %Lu\n",
+			 test_start, test_start + PAGE_CACHE_SIZE - 1, start,
+			 end);
+		goto out_bits;
+	}
+	if (process_page_range(inode, start, end, PROCESS_TEST_LOCKED |
+			       PROCESS_UNLOCK)) {
+		test_msg("Pages in range were not all locked\n");
+		goto out_bits;
+	}
+	ret = 0;
+out_bits:
+	clear_extent_bits(&tmp, 0, total_dirty - 1,
+			  (unsigned long)-1, GFP_NOFS);
+out:
+	if (locked_page)
+		page_cache_release(locked_page);
+	process_page_range(inode, 0, total_dirty - 1,
+			   PROCESS_UNLOCK | PROCESS_RELEASE);
+	iput(inode);
+	return ret;
+}
+
+int btrfs_test_extent_io(void)
+{
+	test_msg("Running find delalloc tests\n");
+	return test_find_delalloc();
+}
diff --git a/include/uapi/linux/magic.h b/include/uapi/linux/magic.h
index 2944278a8ba7..77c60311a6c6 100644
--- a/include/uapi/linux/magic.h
+++ b/include/uapi/linux/magic.h
@@ -71,6 +71,6 @@
 #define USBDEVICE_SUPER_MAGIC	0x9fa2
 #define MTD_INODE_FS_MAGIC      0x11307854
 #define ANON_INODE_FS_MAGIC	0x09041934
-
+#define BTRFS_TEST_MAGIC	0x73727279
 
 #endif /* __LINUX_MAGIC_H__ */
-- 
cgit 


From aaedb55bc08f384b7f57dbb3222a511baed4decf Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Fri, 11 Oct 2013 14:44:09 -0400
Subject: Btrfs: add tests for btrfs_get_extent

I'm going to be removing hole extents in the near future so I wanted to make a
sanity test for btrfs_get_extent to make sure I don't break anything in the
meantime.  This patch just puts btrfs_get_extent through its paces by giving it
a completely unreasonable mapping to look at and make sure it is giving us back
maps that make sense.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/Makefile            |   3 +-
 fs/btrfs/ctree.h             |   4 +
 fs/btrfs/inode.c             |   8 +
 fs/btrfs/super.c             |   3 +
 fs/btrfs/tests/btrfs-tests.c |   8 +-
 fs/btrfs/tests/btrfs-tests.h |   5 +
 fs/btrfs/tests/inode-tests.c | 832 +++++++++++++++++++++++++++++++++++++++++++
 7 files changed, 861 insertions(+), 2 deletions(-)
 create mode 100644 fs/btrfs/tests/inode-tests.c

diff --git a/fs/btrfs/Makefile b/fs/btrfs/Makefile
index cac4f2d001a3..1a44e42d602a 100644
--- a/fs/btrfs/Makefile
+++ b/fs/btrfs/Makefile
@@ -15,4 +15,5 @@ btrfs-$(CONFIG_BTRFS_FS_POSIX_ACL) += acl.o
 btrfs-$(CONFIG_BTRFS_FS_CHECK_INTEGRITY) += check-integrity.o
 
 btrfs-$(CONFIG_BTRFS_FS_RUN_SANITY_TESTS) += tests/free-space-tests.o \
-	tests/extent-buffer-tests.o tests/btrfs-tests.o tests/extent-io-tests.o
+	tests/extent-buffer-tests.o tests/btrfs-tests.o \
+	tests/extent-io-tests.o tests/inode-tests.o
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 2f398062b942..9f5e1cfb0209 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -4034,5 +4034,9 @@ static inline int btrfs_defrag_cancelled(struct btrfs_fs_info *fs_info)
 	return signal_pending(current);
 }
 
+/* Sanity test specific functions */
+#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
+void btrfs_test_destroy_inode(struct inode *inode);
+#endif
 
 #endif
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index bba7f1a5e9f3..b5c2ad8fe2ca 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7795,6 +7795,14 @@ struct inode *btrfs_alloc_inode(struct super_block *sb)
 	return inode;
 }
 
+#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
+void btrfs_test_destroy_inode(struct inode *inode)
+{
+	btrfs_drop_extent_cache(inode, 0, (u64)-1, 0);
+	kmem_cache_free(btrfs_inode_cachep, BTRFS_I(inode));
+}
+#endif
+
 static void btrfs_i_callback(struct rcu_head *head)
 {
 	struct inode *inode = container_of(head, struct inode, i_rcu);
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 78041e34d15a..1f62c1ccab1f 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1802,6 +1802,9 @@ static int btrfs_run_sanity_tests(void)
 	if (ret)
 		goto out;
 	ret = btrfs_test_extent_io();
+	if (ret)
+		goto out;
+	ret = btrfs_test_inodes();
 out:
 	btrfs_destroy_test_fs();
 	return ret;
diff --git a/fs/btrfs/tests/btrfs-tests.c b/fs/btrfs/tests/btrfs-tests.c
index 697d527377c1..757ef00a75a4 100644
--- a/fs/btrfs/tests/btrfs-tests.c
+++ b/fs/btrfs/tests/btrfs-tests.c
@@ -24,11 +24,17 @@
 
 static struct vfsmount *test_mnt = NULL;
 
+static const struct super_operations btrfs_test_super_ops = {
+	.alloc_inode	= btrfs_alloc_inode,
+	.destroy_inode	= btrfs_test_destroy_inode,
+};
+
 static struct dentry *btrfs_test_mount(struct file_system_type *fs_type,
 				       int flags, const char *dev_name,
 				       void *data)
 {
-	return mount_pseudo(fs_type, "btrfs_test:", NULL, NULL, BTRFS_TEST_MAGIC);
+	return mount_pseudo(fs_type, "btrfs_test:", &btrfs_test_super_ops,
+			    NULL, BTRFS_TEST_MAGIC);
 }
 
 static struct file_system_type test_type = {
diff --git a/fs/btrfs/tests/btrfs-tests.h b/fs/btrfs/tests/btrfs-tests.h
index e935fe5291e7..b353bc806ca0 100644
--- a/fs/btrfs/tests/btrfs-tests.h
+++ b/fs/btrfs/tests/btrfs-tests.h
@@ -26,6 +26,7 @@
 int btrfs_test_free_space_cache(void);
 int btrfs_test_extent_buffer_operations(void);
 int btrfs_test_extent_io(void);
+int btrfs_test_inodes(void);
 int btrfs_init_test_fs(void);
 void btrfs_destroy_test_fs(void);
 struct inode *btrfs_new_test_inode(void);
@@ -49,6 +50,10 @@ static inline int btrfs_test_extent_io(void)
 {
 	return 0;
 }
+static inline int btrfs_test_inodes(void)
+{
+	return 0;
+}
 #endif
 
 #endif
diff --git a/fs/btrfs/tests/inode-tests.c b/fs/btrfs/tests/inode-tests.c
new file mode 100644
index 000000000000..b0fc3bab2a96
--- /dev/null
+++ b/fs/btrfs/tests/inode-tests.c
@@ -0,0 +1,832 @@
+/*
+ * Copyright (C) 2013 Fusion IO.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+#include "btrfs-tests.h"
+#include "../ctree.h"
+#include "../btrfs_inode.h"
+#include "../disk-io.h"
+#include "../extent_io.h"
+#include "../volumes.h"
+
+static struct btrfs_fs_info *alloc_dummy_fs_info(void)
+{
+	struct btrfs_fs_info *fs_info = kzalloc(sizeof(struct btrfs_fs_info),
+						GFP_NOFS);
+	if (!fs_info)
+		return fs_info;
+	fs_info->fs_devices = kzalloc(sizeof(struct btrfs_fs_devices),
+				      GFP_NOFS);
+	if (!fs_info->fs_devices) {
+		kfree(fs_info);
+		return NULL;
+	}
+	return fs_info;
+}
+static void free_dummy_root(struct btrfs_root *root)
+{
+	if (!root)
+		return;
+	if (root->fs_info) {
+		kfree(root->fs_info->fs_devices);
+		kfree(root->fs_info);
+	}
+	if (root->node)
+		free_extent_buffer(root->node);
+	kfree(root);
+}
+
+static void insert_extent(struct btrfs_root *root, u64 start, u64 len,
+			  u64 ram_bytes, u64 offset, u64 disk_bytenr,
+			  u64 disk_len, u32 type, u8 compression, int slot)
+{
+	struct btrfs_path path;
+	struct btrfs_file_extent_item *fi;
+	struct extent_buffer *leaf = root->node;
+	struct btrfs_key key;
+	u32 value_len = sizeof(struct btrfs_file_extent_item);
+
+	if (type == BTRFS_FILE_EXTENT_INLINE)
+		value_len += len;
+	memset(&path, 0, sizeof(path));
+
+	path.nodes[0] = leaf;
+	path.slots[0] = slot;
+
+	key.objectid = BTRFS_FIRST_FREE_OBJECTID;
+	key.type = BTRFS_EXTENT_DATA_KEY;
+	key.offset = start;
+
+	setup_items_for_insert(root, &path, &key, &value_len, value_len,
+			       value_len + sizeof(struct btrfs_item), 1);
+	fi = btrfs_item_ptr(leaf, slot, struct btrfs_file_extent_item);
+	btrfs_set_file_extent_generation(leaf, fi, 1);
+	btrfs_set_file_extent_type(leaf, fi, type);
+	btrfs_set_file_extent_disk_bytenr(leaf, fi, disk_bytenr);
+	btrfs_set_file_extent_disk_num_bytes(leaf, fi, disk_len);
+	btrfs_set_file_extent_offset(leaf, fi, offset);
+	btrfs_set_file_extent_num_bytes(leaf, fi, len);
+	btrfs_set_file_extent_ram_bytes(leaf, fi, ram_bytes);
+	btrfs_set_file_extent_compression(leaf, fi, compression);
+	btrfs_set_file_extent_encryption(leaf, fi, 0);
+	btrfs_set_file_extent_other_encoding(leaf, fi, 0);
+}
+
+/*
+ * Build the most complicated map of extents the earth has ever seen.  We want
+ * this so we can test all of the corner cases of btrfs_get_extent.  Here is a
+ * diagram of how the extents will look though this may not be possible we still
+ * want to make sure everything acts normally (the last number is not inclusive)
+ *
+ * [0 - 5][5 -  6][6 - 10][10 - 4096][  4096 - 8192 ][8192 - 12288]
+ * [hole ][inline][ hole ][ regular ][regular1 split][    hole    ]
+ *
+ * [ 12288 - 20480][20480 - 24576][  24576 - 28672  ][28672 - 36864][36864 - 45056]
+ * [regular1 split][   prealloc1 ][prealloc1 written][   prealloc1 ][ compressed  ]
+ *
+ * [45056 - 49152][49152-53248][53248-61440][61440-65536][     65536+81920   ]
+ * [ compressed1 ][  regular  ][compressed1][  regular  ][ hole but no extent]
+ *
+ * [81920-86016]
+ * [  regular  ]
+ */
+static void setup_file_extents(struct btrfs_root *root)
+{
+	int slot = 0;
+	u64 disk_bytenr = 1 * 1024 * 1024;
+	u64 offset = 0;
+
+	/* First we want a hole */
+	insert_extent(root, offset, 5, 5, 0, 0, 0, BTRFS_FILE_EXTENT_REG, 0,
+		      slot);
+	slot++;
+	offset += 5;
+
+	/*
+	 * Now we want an inline extent, I don't think this is possible but hey
+	 * why not?  Also keep in mind if we have an inline extent it counts as
+	 * the whole first page.  If we were to expand it we would have to cow
+	 * and we wouldn't have an inline extent anymore.
+	 */
+	insert_extent(root, offset, 1, 1, 0, 0, 0, BTRFS_FILE_EXTENT_INLINE, 0,
+		      slot);
+	slot++;
+	offset = 4096;
+
+	/* Now another hole */
+	insert_extent(root, offset, 4, 4, 0, 0, 0, BTRFS_FILE_EXTENT_REG, 0,
+		      slot);
+	slot++;
+	offset += 4;
+
+	/* Now for a regular extent */
+	insert_extent(root, offset, 4095, 4095, 0, disk_bytenr, 4096,
+		      BTRFS_FILE_EXTENT_REG, 0, slot);
+	slot++;
+	disk_bytenr += 4096;
+	offset += 4095;
+
+	/*
+	 * Now for 3 extents that were split from a hole punch so we test
+	 * offsets properly.
+	 */
+	insert_extent(root, offset, 4096, 16384, 0, disk_bytenr, 16384,
+		      BTRFS_FILE_EXTENT_REG, 0, slot);
+	slot++;
+	offset += 4096;
+	insert_extent(root, offset, 4096, 4096, 0, 0, 0, BTRFS_FILE_EXTENT_REG,
+		      0, slot);
+	slot++;
+	offset += 4096;
+	insert_extent(root, offset, 8192, 16384, 8192, disk_bytenr, 16384,
+		      BTRFS_FILE_EXTENT_REG, 0, slot);
+	slot++;
+	offset += 8192;
+	disk_bytenr += 16384;
+
+	/* Now for a unwritten prealloc extent */
+	insert_extent(root, offset, 4096, 4096, 0, disk_bytenr, 4096,
+		      BTRFS_FILE_EXTENT_PREALLOC, 0, slot);
+	slot++;
+	offset += 4096;
+
+	/*
+	 * We want to jack up disk_bytenr a little more so the em stuff doesn't
+	 * merge our records.
+	 */
+	disk_bytenr += 8192;
+
+	/*
+	 * Now for a partially written prealloc extent, basically the same as
+	 * the hole punch example above.  Ram_bytes never changes when you mark
+	 * extents written btw.
+	 */
+	insert_extent(root, offset, 4096, 16384, 0, disk_bytenr, 16384,
+		      BTRFS_FILE_EXTENT_PREALLOC, 0, slot);
+	slot++;
+	offset += 4096;
+	insert_extent(root, offset, 4096, 16384, 4096, disk_bytenr, 16384,
+		      BTRFS_FILE_EXTENT_REG, 0, slot);
+	slot++;
+	offset += 4096;
+	insert_extent(root, offset, 8192, 16384, 8192, disk_bytenr, 16384,
+		      BTRFS_FILE_EXTENT_PREALLOC, 0, slot);
+	slot++;
+	offset += 8192;
+	disk_bytenr += 16384;
+
+	/* Now a normal compressed extent */
+	insert_extent(root, offset, 8192, 8192, 0, disk_bytenr, 4096,
+		      BTRFS_FILE_EXTENT_REG, BTRFS_COMPRESS_ZLIB, slot);
+	slot++;
+	offset += 8192;
+	/* No merges */
+	disk_bytenr += 8192;
+
+	/* Now a split compressed extent */
+	insert_extent(root, offset, 4096, 16384, 0, disk_bytenr, 4096,
+		      BTRFS_FILE_EXTENT_REG, BTRFS_COMPRESS_ZLIB, slot);
+	slot++;
+	offset += 4096;
+	insert_extent(root, offset, 4096, 4096, 0, disk_bytenr + 4096, 4096,
+		      BTRFS_FILE_EXTENT_REG, 0, slot);
+	slot++;
+	offset += 4096;
+	insert_extent(root, offset, 8192, 16384, 8192, disk_bytenr, 4096,
+		      BTRFS_FILE_EXTENT_REG, BTRFS_COMPRESS_ZLIB, slot);
+	slot++;
+	offset += 8192;
+	disk_bytenr += 8192;
+
+	/* Now extents that have a hole but no hole extent */
+	insert_extent(root, offset, 4096, 4096, 0, disk_bytenr, 4096,
+		      BTRFS_FILE_EXTENT_REG, 0, slot);
+	slot++;
+	offset += 16384;
+	disk_bytenr += 4096;
+	insert_extent(root, offset, 4096, 4096, 0, disk_bytenr, 4096,
+		      BTRFS_FILE_EXTENT_REG, 0, slot);
+}
+
+static unsigned long prealloc_only = 0;
+static unsigned long compressed_only = 0;
+static unsigned long vacancy_only = 0;
+
+static noinline int test_btrfs_get_extent(void)
+{
+	struct inode *inode = NULL;
+	struct btrfs_root *root = NULL;
+	struct extent_map *em = NULL;
+	u64 orig_start;
+	u64 disk_bytenr;
+	u64 offset;
+	int ret = -ENOMEM;
+
+	set_bit(EXTENT_FLAG_COMPRESSED, &compressed_only);
+	set_bit(EXTENT_FLAG_VACANCY, &vacancy_only);
+	set_bit(EXTENT_FLAG_PREALLOC, &prealloc_only);
+
+	inode = btrfs_new_test_inode();
+	if (!inode) {
+		test_msg("Couldn't allocate inode\n");
+		return ret;
+	}
+
+	BTRFS_I(inode)->location.type = BTRFS_INODE_ITEM_KEY;
+	BTRFS_I(inode)->location.objectid = BTRFS_FIRST_FREE_OBJECTID;
+	BTRFS_I(inode)->location.offset = 0;
+
+	root = btrfs_alloc_dummy_root();
+	if (IS_ERR(root)) {
+		test_msg("Couldn't allocate root\n");
+		goto out;
+	}
+
+	/*
+	 * We do this since btrfs_get_extent wants to assign em->bdev to
+	 * root->fs_info->fs_devices->latest_bdev.
+	 */
+	root->fs_info = alloc_dummy_fs_info();
+	if (!root->fs_info) {
+		test_msg("Couldn't allocate dummy fs info\n");
+		goto out;
+	}
+
+	root->node = alloc_dummy_extent_buffer(0, 4096);
+	if (!root->node) {
+		test_msg("Couldn't allocate dummy buffer\n");
+		goto out;
+	}
+
+	/*
+	 * We will just free a dummy node if it's ref count is 2 so we need an
+	 * extra ref so our searches don't accidently release our page.
+	 */
+	extent_buffer_get(root->node);
+	btrfs_set_header_nritems(root->node, 0);
+	btrfs_set_header_level(root->node, 0);
+	ret = -EINVAL;
+
+	/* First with no extents */
+	BTRFS_I(inode)->root = root;
+	em = btrfs_get_extent(inode, NULL, 0, 0, 4096, 0);
+	if (IS_ERR(em)) {
+		em = NULL;
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start != EXTENT_MAP_HOLE) {
+		test_msg("Expected a hole, got %llu\n", em->block_start);
+		goto out;
+	}
+	if (!test_bit(EXTENT_FLAG_VACANCY, &em->flags)) {
+		test_msg("Vacancy flag wasn't set properly\n");
+		goto out;
+	}
+	free_extent_map(em);
+	btrfs_drop_extent_cache(inode, 0, (u64)-1, 0);
+
+	/*
+	 * All of the magic numbers are based on the mapping setup in
+	 * setup_file_extents, so if you change anything there you need to
+	 * update the comment and update the expected values below.
+	 */
+	setup_file_extents(root);
+
+	em = btrfs_get_extent(inode, NULL, 0, 0, (u64)-1, 0);
+	if (IS_ERR(em)) {
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start != EXTENT_MAP_HOLE) {
+		test_msg("Expected a hole, got %llu\n", em->block_start);
+		goto out;
+	}
+	if (em->start != 0 || em->len != 5) {
+		test_msg("Unexpected extent wanted start 0 len 5, got start "
+			 "%llu len %llu\n", em->start, em->len);
+		goto out;
+	}
+	if (em->flags != 0) {
+		test_msg("Unexpected flags set, want 0 have %lu\n", em->flags);
+		goto out;
+	}
+	offset = em->start + em->len;
+	free_extent_map(em);
+
+	em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0);
+	if (IS_ERR(em)) {
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start != EXTENT_MAP_INLINE) {
+		test_msg("Expected an inline, got %llu\n", em->block_start);
+		goto out;
+	}
+	if (em->start != offset || em->len != 4091) {
+		test_msg("Unexpected extent wanted start %llu len 1, got start "
+			 "%llu len %llu\n", offset, em->start, em->len);
+		goto out;
+	}
+	if (em->flags != 0) {
+		test_msg("Unexpected flags set, want 0 have %lu\n", em->flags);
+		goto out;
+	}
+	/*
+	 * We don't test anything else for inline since it doesn't get set
+	 * unless we have a page for it to write into.  Maybe we should change
+	 * this?
+	 */
+	offset = em->start + em->len;
+	free_extent_map(em);
+
+	em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0);
+	if (IS_ERR(em)) {
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start != EXTENT_MAP_HOLE) {
+		test_msg("Expected a hole, got %llu\n", em->block_start);
+		goto out;
+	}
+	if (em->start != offset || em->len != 4) {
+		test_msg("Unexpected extent wanted start %llu len 4, got start "
+			 "%llu len %llu\n", offset, em->start, em->len);
+		goto out;
+	}
+	if (em->flags != 0) {
+		test_msg("Unexpected flags set, want 0 have %lu\n", em->flags);
+		goto out;
+	}
+	offset = em->start + em->len;
+	free_extent_map(em);
+
+	/* Regular extent */
+	em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0);
+	if (IS_ERR(em)) {
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start >= EXTENT_MAP_LAST_BYTE) {
+		test_msg("Expected a real extent, got %llu\n", em->block_start);
+		goto out;
+	}
+	if (em->start != offset || em->len != 4095) {
+		test_msg("Unexpected extent wanted start %llu len 4095, got "
+			 "start %llu len %llu\n", offset, em->start, em->len);
+		goto out;
+	}
+	if (em->flags != 0) {
+		test_msg("Unexpected flags set, want 0 have %lu\n", em->flags);
+		goto out;
+	}
+	if (em->orig_start != em->start) {
+		test_msg("Wrong orig offset, want %llu, have %llu\n", em->start,
+			 em->orig_start);
+		goto out;
+	}
+	offset = em->start + em->len;
+	free_extent_map(em);
+
+	/* The next 3 are split extents */
+	em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0);
+	if (IS_ERR(em)) {
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start >= EXTENT_MAP_LAST_BYTE) {
+		test_msg("Expected a real extent, got %llu\n", em->block_start);
+		goto out;
+	}
+	if (em->start != offset || em->len != 4096) {
+		test_msg("Unexpected extent wanted start %llu len 4096, got "
+			 "start %llu len %llu\n", offset, em->start, em->len);
+		goto out;
+	}
+	if (em->flags != 0) {
+		test_msg("Unexpected flags set, want 0 have %lu\n", em->flags);
+		goto out;
+	}
+	if (em->orig_start != em->start) {
+		test_msg("Wrong orig offset, want %llu, have %llu\n", em->start,
+			 em->orig_start);
+		goto out;
+	}
+	disk_bytenr = em->block_start;
+	orig_start = em->start;
+	offset = em->start + em->len;
+	free_extent_map(em);
+
+	em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0);
+	if (IS_ERR(em)) {
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start != EXTENT_MAP_HOLE) {
+		test_msg("Expected a hole, got %llu\n", em->block_start);
+		goto out;
+	}
+	if (em->start != offset || em->len != 4096) {
+		test_msg("Unexpected extent wanted start %llu len 4096, got "
+			 "start %llu len %llu\n", offset, em->start, em->len);
+		goto out;
+	}
+	if (em->flags != 0) {
+		test_msg("Unexpected flags set, want 0 have %lu\n", em->flags);
+		goto out;
+	}
+	offset = em->start + em->len;
+	free_extent_map(em);
+
+	em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0);
+	if (IS_ERR(em)) {
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start >= EXTENT_MAP_LAST_BYTE) {
+		test_msg("Expected a real extent, got %llu\n", em->block_start);
+		goto out;
+	}
+	if (em->start != offset || em->len != 8192) {
+		test_msg("Unexpected extent wanted start %llu len 8192, got "
+			 "start %llu len %llu\n", offset, em->start, em->len);
+		goto out;
+	}
+	if (em->flags != 0) {
+		test_msg("Unexpected flags set, want 0 have %lu\n", em->flags);
+		goto out;
+	}
+	if (em->orig_start != orig_start) {
+		test_msg("Wrong orig offset, want %llu, have %llu\n",
+			 orig_start, em->orig_start);
+		goto out;
+	}
+	disk_bytenr += (em->start - orig_start);
+	if (em->block_start != disk_bytenr) {
+		test_msg("Wrong block start, want %llu, have %llu\n",
+			 disk_bytenr, em->block_start);
+		goto out;
+	}
+	offset = em->start + em->len;
+	free_extent_map(em);
+
+	/* Prealloc extent */
+	em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0);
+	if (IS_ERR(em)) {
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start >= EXTENT_MAP_LAST_BYTE) {
+		test_msg("Expected a real extent, got %llu\n", em->block_start);
+		goto out;
+	}
+	if (em->start != offset || em->len != 4096) {
+		test_msg("Unexpected extent wanted start %llu len 4096, got "
+			 "start %llu len %llu\n", offset, em->start, em->len);
+		goto out;
+	}
+	if (em->flags != prealloc_only) {
+		test_msg("Unexpected flags set, want %lu have %lu\n",
+			 prealloc_only, em->flags);
+		goto out;
+	}
+	if (em->orig_start != em->start) {
+		test_msg("Wrong orig offset, want %llu, have %llu\n", em->start,
+			 em->orig_start);
+		goto out;
+	}
+	offset = em->start + em->len;
+	free_extent_map(em);
+
+	/* The next 3 are a half written prealloc extent */
+	em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0);
+	if (IS_ERR(em)) {
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start >= EXTENT_MAP_LAST_BYTE) {
+		test_msg("Expected a real extent, got %llu\n", em->block_start);
+		goto out;
+	}
+	if (em->start != offset || em->len != 4096) {
+		test_msg("Unexpected extent wanted start %llu len 4096, got "
+			 "start %llu len %llu\n", offset, em->start, em->len);
+		goto out;
+	}
+	if (em->flags != prealloc_only) {
+		test_msg("Unexpected flags set, want %lu have %lu\n",
+			 prealloc_only, em->flags);
+		goto out;
+	}
+	if (em->orig_start != em->start) {
+		test_msg("Wrong orig offset, want %llu, have %llu\n", em->start,
+			 em->orig_start);
+		goto out;
+	}
+	disk_bytenr = em->block_start;
+	orig_start = em->start;
+	offset = em->start + em->len;
+	free_extent_map(em);
+
+	em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0);
+	if (IS_ERR(em)) {
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start >= EXTENT_MAP_HOLE) {
+		test_msg("Expected a real extent, got %llu\n", em->block_start);
+		goto out;
+	}
+	if (em->start != offset || em->len != 4096) {
+		test_msg("Unexpected extent wanted start %llu len 4096, got "
+			 "start %llu len %llu\n", offset, em->start, em->len);
+		goto out;
+	}
+	if (em->flags != 0) {
+		test_msg("Unexpected flags set, want 0 have %lu\n", em->flags);
+		goto out;
+	}
+	if (em->orig_start != orig_start) {
+		test_msg("Unexpected orig offset, wanted %llu, have %llu\n",
+			 orig_start, em->orig_start);
+		goto out;
+	}
+	if (em->block_start != (disk_bytenr + (em->start - em->orig_start))) {
+		test_msg("Unexpected block start, wanted %llu, have %llu\n",
+			 disk_bytenr + (em->start - em->orig_start),
+			 em->block_start);
+		goto out;
+	}
+	offset = em->start + em->len;
+	free_extent_map(em);
+
+	em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0);
+	if (IS_ERR(em)) {
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start >= EXTENT_MAP_LAST_BYTE) {
+		test_msg("Expected a real extent, got %llu\n", em->block_start);
+		goto out;
+	}
+	if (em->start != offset || em->len != 8192) {
+		test_msg("Unexpected extent wanted start %llu len 8192, got "
+			 "start %llu len %llu\n", offset, em->start, em->len);
+		goto out;
+	}
+	if (em->flags != prealloc_only) {
+		test_msg("Unexpected flags set, want %lu have %lu\n",
+			 prealloc_only, em->flags);
+		goto out;
+	}
+	if (em->orig_start != orig_start) {
+		test_msg("Wrong orig offset, want %llu, have %llu\n", orig_start,
+			 em->orig_start);
+		goto out;
+	}
+	if (em->block_start != (disk_bytenr + (em->start - em->orig_start))) {
+		test_msg("Unexpected block start, wanted %llu, have %llu\n",
+			 disk_bytenr + (em->start - em->orig_start),
+			 em->block_start);
+		goto out;
+	}
+	offset = em->start + em->len;
+	free_extent_map(em);
+
+	/* Now for the compressed extent */
+	em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0);
+	if (IS_ERR(em)) {
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start >= EXTENT_MAP_LAST_BYTE) {
+		test_msg("Expected a real extent, got %llu\n", em->block_start);
+		goto out;
+	}
+	if (em->start != offset || em->len != 8192) {
+		test_msg("Unexpected extent wanted start %llu len 8192, got "
+			 "start %llu len %llu\n", offset, em->start, em->len);
+		goto out;
+	}
+	if (em->flags != compressed_only) {
+		test_msg("Unexpected flags set, want %lu have %lu\n",
+			 compressed_only, em->flags);
+		goto out;
+	}
+	if (em->orig_start != em->start) {
+		test_msg("Wrong orig offset, want %llu, have %llu\n",
+			 em->start, em->orig_start);
+		goto out;
+	}
+	if (em->compress_type != BTRFS_COMPRESS_ZLIB) {
+		test_msg("Unexpected compress type, wanted %d, got %d\n",
+			 BTRFS_COMPRESS_ZLIB, em->compress_type);
+		goto out;
+	}
+	offset = em->start + em->len;
+	free_extent_map(em);
+
+	/* Split compressed extent */
+	em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0);
+	if (IS_ERR(em)) {
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start >= EXTENT_MAP_LAST_BYTE) {
+		test_msg("Expected a real extent, got %llu\n", em->block_start);
+		goto out;
+	}
+	if (em->start != offset || em->len != 4096) {
+		test_msg("Unexpected extent wanted start %llu len 4096, got "
+			 "start %llu len %llu\n", offset, em->start, em->len);
+		goto out;
+	}
+	if (em->flags != compressed_only) {
+		test_msg("Unexpected flags set, want %lu have %lu\n",
+			 compressed_only, em->flags);
+		goto out;
+	}
+	if (em->orig_start != em->start) {
+		test_msg("Wrong orig offset, want %llu, have %llu\n",
+			 em->start, em->orig_start);
+		goto out;
+	}
+	if (em->compress_type != BTRFS_COMPRESS_ZLIB) {
+		test_msg("Unexpected compress type, wanted %d, got %d\n",
+			 BTRFS_COMPRESS_ZLIB, em->compress_type);
+		goto out;
+	}
+	disk_bytenr = em->block_start;
+	orig_start = em->start;
+	offset = em->start + em->len;
+	free_extent_map(em);
+
+	em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0);
+	if (IS_ERR(em)) {
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start >= EXTENT_MAP_LAST_BYTE) {
+		test_msg("Expected a real extent, got %llu\n", em->block_start);
+		goto out;
+	}
+	if (em->start != offset || em->len != 4096) {
+		test_msg("Unexpected extent wanted start %llu len 4096, got "
+			 "start %llu len %llu\n", offset, em->start, em->len);
+		goto out;
+	}
+	if (em->flags != 0) {
+		test_msg("Unexpected flags set, want 0 have %lu\n", em->flags);
+		goto out;
+	}
+	if (em->orig_start != em->start) {
+		test_msg("Wrong orig offset, want %llu, have %llu\n", em->start,
+			 em->orig_start);
+		goto out;
+	}
+	offset = em->start + em->len;
+	free_extent_map(em);
+
+	em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0);
+	if (IS_ERR(em)) {
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start != disk_bytenr) {
+		test_msg("Block start does not match, want %llu got %llu\n",
+			 disk_bytenr, em->block_start);
+		goto out;
+	}
+	if (em->start != offset || em->len != 8192) {
+		test_msg("Unexpected extent wanted start %llu len 8192, got "
+			 "start %llu len %llu\n", offset, em->start, em->len);
+		goto out;
+	}
+	if (em->flags != compressed_only) {
+		test_msg("Unexpected flags set, want %lu have %lu\n",
+			 compressed_only, em->flags);
+		goto out;
+	}
+	if (em->orig_start != orig_start) {
+		test_msg("Wrong orig offset, want %llu, have %llu\n",
+			 em->start, orig_start);
+		goto out;
+	}
+	if (em->compress_type != BTRFS_COMPRESS_ZLIB) {
+		test_msg("Unexpected compress type, wanted %d, got %d\n",
+			 BTRFS_COMPRESS_ZLIB, em->compress_type);
+		goto out;
+	}
+	offset = em->start + em->len;
+	free_extent_map(em);
+
+	/* A hole between regular extents but no hole extent */
+	em = btrfs_get_extent(inode, NULL, 0, offset + 6, 4096, 0);
+	if (IS_ERR(em)) {
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start >= EXTENT_MAP_LAST_BYTE) {
+		test_msg("Expected a real extent, got %llu\n", em->block_start);
+		goto out;
+	}
+	if (em->start != offset || em->len != 4096) {
+		test_msg("Unexpected extent wanted start %llu len 4096, got "
+			 "start %llu len %llu\n", offset, em->start, em->len);
+		goto out;
+	}
+	if (em->flags != 0) {
+		test_msg("Unexpected flags set, want 0 have %lu\n", em->flags);
+		goto out;
+	}
+	if (em->orig_start != em->start) {
+		test_msg("Wrong orig offset, want %llu, have %llu\n", em->start,
+			 em->orig_start);
+		goto out;
+	}
+	offset = em->start + em->len;
+	free_extent_map(em);
+
+	em = btrfs_get_extent(inode, NULL, 0, offset, 4096 * 1024, 0);
+	if (IS_ERR(em)) {
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start != EXTENT_MAP_HOLE) {
+		test_msg("Expected a hole extent, got %llu\n", em->block_start);
+		goto out;
+	}
+	/*
+	 * Currently we just return a length that we requested rather than the
+	 * length of the actual hole, if this changes we'll have to change this
+	 * test.
+	 */
+	if (em->start != offset || em->len != 12288) {
+		test_msg("Unexpected extent wanted start %llu len 12288, got "
+			 "start %llu len %llu\n", offset, em->start, em->len);
+		goto out;
+	}
+	if (em->flags != vacancy_only) {
+		test_msg("Unexpected flags set, want %lu have %lu\n",
+			 vacancy_only, em->flags);
+		goto out;
+	}
+	if (em->orig_start != em->start) {
+		test_msg("Wrong orig offset, want %llu, have %llu\n", em->start,
+			 em->orig_start);
+		goto out;
+	}
+	offset = em->start + em->len;
+	free_extent_map(em);
+
+	em = btrfs_get_extent(inode, NULL, 0, offset, 4096, 0);
+	if (IS_ERR(em)) {
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start >= EXTENT_MAP_LAST_BYTE) {
+		test_msg("Expected a real extent, got %llu\n", em->block_start);
+		goto out;
+	}
+	if (em->start != offset || em->len != 4096) {
+		test_msg("Unexpected extent wanted start %llu len 4096, got "
+			 "start %llu len %llu\n", offset, em->start, em->len);
+		goto out;
+	}
+	if (em->flags != 0) {
+		test_msg("Unexpected flags set, want 0 have %lu\n", em->flags);
+		goto out;
+	}
+	if (em->orig_start != em->start) {
+		test_msg("Wrong orig offset, want %llu, have %llu\n", em->start,
+			 em->orig_start);
+		goto out;
+	}
+	ret = 0;
+out:
+	if (!IS_ERR(em))
+		free_extent_map(em);
+	iput(inode);
+	free_dummy_root(root);
+	return ret;
+}
+
+int btrfs_test_inodes(void)
+{
+	test_msg("Running btrfs_get_extent tests\n");
+	return test_btrfs_get_extent();
+}
-- 
cgit 


From 96192499c27e8b58d71f4370f29ca86d4ca915d7 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Wed, 16 Oct 2013 13:53:28 -0400
Subject: Btrfs: stop all workers after we free block groups

Stefan was hitting a panic in the async worker stuff because we had outstanding
read bios while we were stopping the worker threads.  You could reproduce this
easily if you mount -o nospace_cache and ran generic/273.  This is because the
caching thread stuff is still going and we were stopping all the worker threads.
We need to stop the workers after this work is done, and the free block groups
code will wait for all the caching threads to stop first so we don't run into
this problem.  With this patch we no longer panic.  Thanks,

Cc: stable@vger.kernel.org
Reported-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/disk-io.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 419968e3eaa0..b0ea9f4bbc70 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3637,12 +3637,12 @@ int close_ctree(struct btrfs_root *root)
 		       percpu_counter_sum(&fs_info->delalloc_bytes));
 	}
 
-	btrfs_stop_all_workers(fs_info);
-
 	del_fs_roots(fs_info);
 
 	btrfs_free_block_groups(fs_info);
 
+	btrfs_stop_all_workers(fs_info);
+
 	free_root_pointers(fs_info, 1);
 
 	iput(fs_info->btree_inode);
-- 
cgit 


From 25a50341b6269b0622434d9360f0c771d219681a Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Mon, 14 Oct 2013 12:08:38 -0400
Subject: Btrfs: handle a missing extent for the first file extent

While trying to kill our hole extents I noticed I was seeing problems where we
seek into a file and then start writing and then try to fiemap that file later.
This is because we search for offset 0, don't find anything and so back up one
slot, which puts us at the inode ref or something like that, which means we goto
not_found and create an extent map for our entire search area.  This isn't quite
what we want, we want to move forward one slot and see if there is an extent
there so we can limit our hole extent.  This patch fixes this problem, I will
add a testcase for this as well.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/inode.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index b5c2ad8fe2ca..9d39d08a1555 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -5982,7 +5982,14 @@ again:
 	found_type = btrfs_key_type(&found_key);
 	if (found_key.objectid != objectid ||
 	    found_type != BTRFS_EXTENT_DATA_KEY) {
-		goto not_found;
+		/*
+		 * If we backup past the first extent we want to move forward
+		 * and see if there is an extent in front of us, otherwise we'll
+		 * say there is a hole for our whole search range which can
+		 * cause problems.
+		 */
+		extent_end = start;
+		goto next;
 	}
 
 	found_type = btrfs_file_extent_type(leaf, item);
@@ -5997,7 +6004,7 @@ again:
 		size = btrfs_file_extent_inline_len(leaf, item);
 		extent_end = ALIGN(extent_start + size, root->sectorsize);
 	}
-
+next:
 	if (start >= extent_end) {
 		path->slots[0]++;
 		if (path->slots[0] >= btrfs_header_nritems(leaf)) {
-- 
cgit 


From 0e30db86a4524f9e655e8cb9335b4da1787db3c1 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Mon, 14 Oct 2013 13:15:02 -0400
Subject: Btrfs: add a sanity test for a vacant extent at the front of a file

Btrfs_get_extent was not handling this case properly, add a test to make sure we
don't regress.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/tests/inode-tests.c | 133 +++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 128 insertions(+), 5 deletions(-)

diff --git a/fs/btrfs/tests/inode-tests.c b/fs/btrfs/tests/inode-tests.c
index b0fc3bab2a96..397d1f99a8eb 100644
--- a/fs/btrfs/tests/inode-tests.c
+++ b/fs/btrfs/tests/inode-tests.c
@@ -86,6 +86,26 @@ static void insert_extent(struct btrfs_root *root, u64 start, u64 len,
 	btrfs_set_file_extent_other_encoding(leaf, fi, 0);
 }
 
+static void insert_inode_item_key(struct btrfs_root *root)
+{
+	struct btrfs_path path;
+	struct extent_buffer *leaf = root->node;
+	struct btrfs_key key;
+	u32 value_len = 0;
+
+	memset(&path, 0, sizeof(path));
+
+	path.nodes[0] = leaf;
+	path.slots[0] = 0;
+
+	key.objectid = BTRFS_INODE_ITEM_KEY;
+	key.type = BTRFS_INODE_ITEM_KEY;
+	key.offset = 0;
+
+	setup_items_for_insert(root, &path, &key, &value_len, value_len,
+			       value_len + sizeof(struct btrfs_item), 1);
+}
+
 /*
  * Build the most complicated map of extents the earth has ever seen.  We want
  * this so we can test all of the corner cases of btrfs_get_extent.  Here is a
@@ -236,10 +256,6 @@ static noinline int test_btrfs_get_extent(void)
 	u64 offset;
 	int ret = -ENOMEM;
 
-	set_bit(EXTENT_FLAG_COMPRESSED, &compressed_only);
-	set_bit(EXTENT_FLAG_VACANCY, &vacancy_only);
-	set_bit(EXTENT_FLAG_PREALLOC, &prealloc_only);
-
 	inode = btrfs_new_test_inode();
 	if (!inode) {
 		test_msg("Couldn't allocate inode\n");
@@ -825,8 +841,115 @@ out:
 	return ret;
 }
 
+static int test_hole_first(void)
+{
+	struct inode *inode = NULL;
+	struct btrfs_root *root = NULL;
+	struct extent_map *em = NULL;
+	int ret = -ENOMEM;
+
+	inode = btrfs_new_test_inode();
+	if (!inode) {
+		test_msg("Couldn't allocate inode\n");
+		return ret;
+	}
+
+	BTRFS_I(inode)->location.type = BTRFS_INODE_ITEM_KEY;
+	BTRFS_I(inode)->location.objectid = BTRFS_FIRST_FREE_OBJECTID;
+	BTRFS_I(inode)->location.offset = 0;
+
+	root = btrfs_alloc_dummy_root();
+	if (IS_ERR(root)) {
+		test_msg("Couldn't allocate root\n");
+		goto out;
+	}
+
+	root->fs_info = alloc_dummy_fs_info();
+	if (!root->fs_info) {
+		test_msg("Couldn't allocate dummy fs info\n");
+		goto out;
+	}
+
+	root->node = alloc_dummy_extent_buffer(0, 4096);
+	if (!root->node) {
+		test_msg("Couldn't allocate dummy buffer\n");
+		goto out;
+	}
+
+	extent_buffer_get(root->node);
+	btrfs_set_header_nritems(root->node, 0);
+	btrfs_set_header_level(root->node, 0);
+	BTRFS_I(inode)->root = root;
+	ret = -EINVAL;
+
+	/*
+	 * Need a blank inode item here just so we don't confuse
+	 * btrfs_get_extent.
+	 */
+	insert_inode_item_key(root);
+	insert_extent(root, 4096, 4096, 4096, 0, 4096, 4096,
+		      BTRFS_FILE_EXTENT_REG, 0, 1);
+	em = btrfs_get_extent(inode, NULL, 0, 0, 8192, 0);
+	if (IS_ERR(em)) {
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start != EXTENT_MAP_HOLE) {
+		test_msg("Expected a hole, got %llu\n", em->block_start);
+		goto out;
+	}
+	if (em->start != 0 || em->len != 4096) {
+		test_msg("Unexpected extent wanted start 0 len 4096, got start "
+			 "%llu len %llu\n", em->start, em->len);
+		goto out;
+	}
+	if (em->flags != vacancy_only) {
+		test_msg("Wrong flags, wanted %lu, have %lu\n", vacancy_only,
+			 em->flags);
+		goto out;
+	}
+	free_extent_map(em);
+
+	em = btrfs_get_extent(inode, NULL, 0, 4096, 8192, 0);
+	if (IS_ERR(em)) {
+		test_msg("Got an error when we shouldn't have\n");
+		goto out;
+	}
+	if (em->block_start != 4096) {
+		test_msg("Expected a real extent, got %llu\n", em->block_start);
+		goto out;
+	}
+	if (em->start != 4096 || em->len != 4096) {
+		test_msg("Unexpected extent wanted start 4096 len 4096, got "
+			 "start %llu len %llu\n", em->start, em->len);
+		goto out;
+	}
+	if (em->flags != 0) {
+		test_msg("Unexpected flags set, wanted 0 got %lu\n",
+			 em->flags);
+		goto out;
+	}
+	ret = 0;
+out:
+	if (!IS_ERR(em))
+		free_extent_map(em);
+	iput(inode);
+	free_dummy_root(root);
+	return ret;
+}
+
 int btrfs_test_inodes(void)
 {
+	int ret;
+
+	set_bit(EXTENT_FLAG_COMPRESSED, &compressed_only);
+	set_bit(EXTENT_FLAG_VACANCY, &vacancy_only);
+	set_bit(EXTENT_FLAG_PREALLOC, &prealloc_only);
+
 	test_msg("Running btrfs_get_extent tests\n");
-	return test_btrfs_get_extent();
+	ret = test_btrfs_get_extent();
+	if (ret)
+		return ret;
+	test_msg("Running hole first btrfs_get_extent test\n");
+	return test_hole_first();
 }
-- 
cgit 


From ed9e8af88e2551aaa6bf51d8063a2493e2d71597 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Mon, 14 Oct 2013 17:23:08 -0400
Subject: Btrfs: fix hole check in log_one_extent

I added an assert to make sure we were looking up aligned offsets for csums and
I tripped it when running xfstests.  This is because log_one_extent was checking
if block_start == 0 for a hole instead of EXTENT_MAP_HOLE.  This worked out fine
in practice it seems, but it adds a lot of extra work that is uneeded.  With
this fix I'm no longer tripping my assert.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/tree-log.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 849b72985c74..1134aa40b6d1 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -3373,7 +3373,7 @@ static int log_one_extent(struct btrfs_trans_handle *trans,
 		btrfs_set_token_file_extent_type(leaf, fi,
 						 BTRFS_FILE_EXTENT_REG,
 						 &token);
-		if (em->block_start == 0)
+		if (em->block_start == EXTENT_MAP_HOLE)
 			skip_csum = true;
 	}
 
-- 
cgit 


From 4277a9c3b3665f2830c55ece015163867b9414cc Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Tue, 15 Oct 2013 09:36:40 -0400
Subject: Btrfs: add an assert to btrfs_lookup_csums_range for alignment

I was hitting weird issues when trying to remove hole extents and it turned out
it was because I was sending non-aligned offsets down to
btrfs_lookup_csums_range.  So add an assert for this in case somebody trips over
this in the future.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/file-item.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index 4f53159bdb9d..ae8a5139e0ee 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -329,6 +329,9 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
 	u64 csum_end;
 	u16 csum_size = btrfs_super_csum_size(root->fs_info->super_copy);
 
+	ASSERT(start == ALIGN(start, root->sectorsize) &&
+	       (end + 1) == ALIGN(end + 1, root->sectorsize));
+
 	path = btrfs_alloc_path();
 	if (!path)
 		return -ENOMEM;
-- 
cgit 


From 7f4ca37c486733da008778a1f4058fbc194a4fdd Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Fri, 18 Oct 2013 11:44:46 -0400
Subject: Btrfs: fix up seek_hole/seek_data handling

Whoever wrote this was braindead.  Also it doesn't work right if you have
VACANCY's since we assumed you would only have that at the end of the file,
which won't be the case in the near future.  I tested this with generic/285 and
generic/286 as well as the btrfs tests that use fssum since it uses
seek_hole/seek_data to verify things are ok.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/file.c | 94 ++++++++++++---------------------------------------------
 1 file changed, 19 insertions(+), 75 deletions(-)

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 72da4df53c9a..bf3465cf455a 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -2405,14 +2405,12 @@ out_reserve_fail:
 static int find_desired_extent(struct inode *inode, loff_t *offset, int whence)
 {
 	struct btrfs_root *root = BTRFS_I(inode)->root;
-	struct extent_map *em;
+	struct extent_map *em = NULL;
 	struct extent_state *cached_state = NULL;
 	u64 lockstart = *offset;
 	u64 lockend = i_size_read(inode);
 	u64 start = *offset;
-	u64 orig_start = *offset;
 	u64 len = i_size_read(inode);
-	u64 last_end = 0;
 	int ret = 0;
 
 	lockend = max_t(u64, root->sectorsize, lockend);
@@ -2429,89 +2427,35 @@ static int find_desired_extent(struct inode *inode, loff_t *offset, int whence)
 	lock_extent_bits(&BTRFS_I(inode)->io_tree, lockstart, lockend, 0,
 			 &cached_state);
 
-	/*
-	 * Delalloc is such a pain.  If we have a hole and we have pending
-	 * delalloc for a portion of the hole we will get back a hole that
-	 * exists for the entire range since it hasn't been actually written
-	 * yet.  So to take care of this case we need to look for an extent just
-	 * before the position we want in case there is outstanding delalloc
-	 * going on here.
-	 */
-	if (whence == SEEK_HOLE && start != 0) {
-		if (start <= root->sectorsize)
-			em = btrfs_get_extent_fiemap(inode, NULL, 0, 0,
-						     root->sectorsize, 0);
-		else
-			em = btrfs_get_extent_fiemap(inode, NULL, 0,
-						     start - root->sectorsize,
-						     root->sectorsize, 0);
-		if (IS_ERR(em)) {
-			ret = PTR_ERR(em);
-			goto out;
-		}
-		last_end = em->start + em->len;
-		if (em->block_start == EXTENT_MAP_DELALLOC)
-			last_end = min_t(u64, last_end, inode->i_size);
-		free_extent_map(em);
-	}
-
-	while (1) {
+	while (start < inode->i_size) {
 		em = btrfs_get_extent_fiemap(inode, NULL, 0, start, len, 0);
 		if (IS_ERR(em)) {
 			ret = PTR_ERR(em);
+			em = NULL;
 			break;
 		}
 
-		if (em->block_start == EXTENT_MAP_HOLE) {
-			if (test_bit(EXTENT_FLAG_VACANCY, &em->flags)) {
-				if (last_end <= orig_start) {
-					free_extent_map(em);
-					ret = -ENXIO;
-					break;
-				}
-			}
-
-			if (whence == SEEK_HOLE) {
-				*offset = start;
-				free_extent_map(em);
-				break;
-			}
-		} else {
-			if (whence == SEEK_DATA) {
-				if (em->block_start == EXTENT_MAP_DELALLOC) {
-					if (start >= inode->i_size) {
-						free_extent_map(em);
-						ret = -ENXIO;
-						break;
-					}
-				}
-
-				if (!test_bit(EXTENT_FLAG_PREALLOC,
-					      &em->flags)) {
-					*offset = start;
-					free_extent_map(em);
-					break;
-				}
-			}
-		}
+		if (whence == SEEK_HOLE &&
+		    (em->block_start == EXTENT_MAP_HOLE ||
+		     test_bit(EXTENT_FLAG_PREALLOC, &em->flags)))
+			break;
+		else if (whence == SEEK_DATA &&
+			   (em->block_start != EXTENT_MAP_HOLE &&
+			    !test_bit(EXTENT_FLAG_PREALLOC, &em->flags)))
+			break;
 
 		start = em->start + em->len;
-		last_end = em->start + em->len;
-
-		if (em->block_start == EXTENT_MAP_DELALLOC)
-			last_end = min_t(u64, last_end, inode->i_size);
-
-		if (test_bit(EXTENT_FLAG_VACANCY, &em->flags)) {
-			free_extent_map(em);
-			ret = -ENXIO;
-			break;
-		}
 		free_extent_map(em);
+		em = NULL;
 		cond_resched();
 	}
-	if (!ret)
-		*offset = min(*offset, inode->i_size);
-out:
+	free_extent_map(em);
+	if (!ret) {
+		if (whence == SEEK_DATA && start >= inode->i_size)
+			ret = -ENXIO;
+		else
+			*offset = min_t(loff_t, start, inode->i_size);
+	}
 	unlock_extent_cached(&BTRFS_I(inode)->io_tree, lockstart, lockend,
 			     &cached_state, GFP_NOFS);
 	return ret;
-- 
cgit 


From 452c75c3d2187089f6e846710e6ea7883bf30f8a Mon Sep 17 00:00:00 2001
From: Chandra Seetharaman <sekharan@us.ibm.com>
Date: Mon, 7 Oct 2013 10:45:25 -0500
Subject: Btrfs: Simplify the logic in alloc_extent_buffer() for existing
 extent buffer case

alloc_extent_buffer() uses radix_tree_lookup() when radix_tree_insert()
fails with EEXIST. That part of the code is very similar to the code in
find_extent_buffer(). This patch replaces radix_tree_lookup() and
surrounding code in alloc_extent_buffer() with find_extent_buffer().

Note that radix_tree_lookup() does not need to be protected by
tree->buffer_lock. It is protected by eb->refs.

While at it, this patch
  - changes the other usage of radix_tree_lookup() in alloc_extent_buffer()
    with find_extent_buffer() to reduce redundancy.
  - removes the unused argument 'len' to find_extent_buffer().

Signed-Off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Reviewed-by: Zach Brown <zab@redhat.com>

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/disk-io.c   |  3 +--
 fs/btrfs/extent_io.c | 63 ++++++++++++++++++++++------------------------------
 fs/btrfs/extent_io.h |  2 +-
 3 files changed, 28 insertions(+), 40 deletions(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index b0ea9f4bbc70..ebc784aba3f5 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -1104,8 +1104,7 @@ struct extent_buffer *btrfs_find_tree_block(struct btrfs_root *root,
 {
 	struct inode *btree_inode = root->fs_info->btree_inode;
 	struct extent_buffer *eb;
-	eb = find_extent_buffer(&BTRFS_I(btree_inode)->io_tree,
-				bytenr, blocksize);
+	eb = find_extent_buffer(&BTRFS_I(btree_inode)->io_tree, bytenr);
 	return eb;
 }
 
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index c10291cc4fd1..5439f24ab06b 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -4486,6 +4486,23 @@ static void mark_extent_buffer_accessed(struct extent_buffer *eb)
 	}
 }
 
+struct extent_buffer *find_extent_buffer(struct extent_io_tree *tree,
+					 		u64 start)
+{
+	struct extent_buffer *eb;
+
+	rcu_read_lock();
+	eb = radix_tree_lookup(&tree->buffer, start >> PAGE_CACHE_SHIFT);
+	if (eb && atomic_inc_not_zero(&eb->refs)) {
+		rcu_read_unlock();
+		mark_extent_buffer_accessed(eb);
+		return eb;
+	}
+	rcu_read_unlock();
+
+	return NULL;
+}
+
 struct extent_buffer *alloc_extent_buffer(struct extent_io_tree *tree,
 					  u64 start, unsigned long len)
 {
@@ -4499,14 +4516,10 @@ struct extent_buffer *alloc_extent_buffer(struct extent_io_tree *tree,
 	int uptodate = 1;
 	int ret;
 
-	rcu_read_lock();
-	eb = radix_tree_lookup(&tree->buffer, start >> PAGE_CACHE_SHIFT);
-	if (eb && atomic_inc_not_zero(&eb->refs)) {
-		rcu_read_unlock();
-		mark_extent_buffer_accessed(eb);
+
+	eb = find_extent_buffer(tree, start);
+	if (eb)
 		return eb;
-	}
-	rcu_read_unlock();
 
 	eb = __alloc_extent_buffer(tree, start, len, GFP_NOFS);
 	if (!eb)
@@ -4565,24 +4578,17 @@ again:
 
 	spin_lock(&tree->buffer_lock);
 	ret = radix_tree_insert(&tree->buffer, start >> PAGE_CACHE_SHIFT, eb);
+	spin_unlock(&tree->buffer_lock);
+	radix_tree_preload_end();
 	if (ret == -EEXIST) {
-		exists = radix_tree_lookup(&tree->buffer,
-						start >> PAGE_CACHE_SHIFT);
-		if (!atomic_inc_not_zero(&exists->refs)) {
-			spin_unlock(&tree->buffer_lock);
-			radix_tree_preload_end();
-			exists = NULL;
+		exists = find_extent_buffer(tree, start);
+		if (exists)
+			goto free_eb;
+		else
 			goto again;
-		}
-		spin_unlock(&tree->buffer_lock);
-		radix_tree_preload_end();
-		mark_extent_buffer_accessed(exists);
-		goto free_eb;
 	}
 	/* add one reference for the tree */
 	check_buffer_tree_ref(eb);
-	spin_unlock(&tree->buffer_lock);
-	radix_tree_preload_end();
 
 	/*
 	 * there is a race where release page may have
@@ -4613,23 +4619,6 @@ free_eb:
 	return exists;
 }
 
-struct extent_buffer *find_extent_buffer(struct extent_io_tree *tree,
-					 u64 start, unsigned long len)
-{
-	struct extent_buffer *eb;
-
-	rcu_read_lock();
-	eb = radix_tree_lookup(&tree->buffer, start >> PAGE_CACHE_SHIFT);
-	if (eb && atomic_inc_not_zero(&eb->refs)) {
-		rcu_read_unlock();
-		mark_extent_buffer_accessed(eb);
-		return eb;
-	}
-	rcu_read_unlock();
-
-	return NULL;
-}
-
 static inline void btrfs_release_extent_buffer_rcu(struct rcu_head *head)
 {
 	struct extent_buffer *eb =
diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index f98602eac808..19620c58f096 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -271,7 +271,7 @@ struct extent_buffer *alloc_extent_buffer(struct extent_io_tree *tree,
 struct extent_buffer *alloc_dummy_extent_buffer(u64 start, unsigned long len);
 struct extent_buffer *btrfs_clone_extent_buffer(struct extent_buffer *src);
 struct extent_buffer *find_extent_buffer(struct extent_io_tree *tree,
-					 u64 start, unsigned long len);
+					 u64 start);
 void free_extent_buffer(struct extent_buffer *eb);
 void free_extent_buffer_stale(struct extent_buffer *eb);
 #define WAIT_NONE	0
-- 
cgit 


From efd0c4055a26e88689b3c0cf95492dfe147cba67 Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Mon, 7 Oct 2013 21:20:44 +0100
Subject: Btrfs: remove unnecessary key copy when logging inode

The btrfs_insert_empty_item() function doesn't modify its
key argument.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Reviewed-by: Zach Brown <zab@redhat.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/tree-log.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 1134aa40b6d1..f2e0531dc719 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -3170,11 +3170,10 @@ static int log_inode_item(struct btrfs_trans_handle *trans,
 			  struct inode *inode)
 {
 	struct btrfs_inode_item *inode_item;
-	struct btrfs_key key;
 	int ret;
 
-	memcpy(&key, &BTRFS_I(inode)->location, sizeof(key));
-	ret = btrfs_insert_empty_item(trans, log, path, &key,
+	ret = btrfs_insert_empty_item(trans, log, path,
+				      &BTRFS_I(inode)->location,
 				      sizeof(*inode_item));
 	if (ret && ret != -EEXIST)
 		return ret;
-- 
cgit 


From 8319bfe13642ea2d411c885400377d5fc6f32271 Mon Sep 17 00:00:00 2001
From: Liu Bo <bo.li.liu@oracle.com>
Date: Tue, 8 Oct 2013 18:19:14 +0800
Subject: Btrfs: cleanup dead code of defragment

@is_extent is no more needed since we don't defrag extent root.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/tree-defrag.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/btrfs/tree-defrag.c b/fs/btrfs/tree-defrag.c
index cbaa73c871a9..76928ca97741 100644
--- a/fs/btrfs/tree-defrag.c
+++ b/fs/btrfs/tree-defrag.c
@@ -37,7 +37,6 @@ int btrfs_defrag_leaves(struct btrfs_trans_handle *trans,
 	int ret = 0;
 	int wret;
 	int level;
-	int is_extent = 0;
 	int next_key_ret = 0;
 	u64 last_ret = 0;
 	u64 min_trans = 0;
@@ -50,7 +49,7 @@ int btrfs_defrag_leaves(struct btrfs_trans_handle *trans,
 		goto out;
 	}
 
-	if (root->ref_cows == 0 && !is_extent)
+	if (root->ref_cows == 0)
 		goto out;
 
 	if (btrfs_test_opt(root, SSD))
-- 
cgit 


From 498456d33e2ee5150f045e604e4531b088083e7a Mon Sep 17 00:00:00 2001
From: Liu Bo <bo.li.liu@oracle.com>
Date: Tue, 8 Oct 2013 18:19:43 +0800
Subject: Btrfs: kill unused code in btrfs_search_forward

After commit de78b51a2852bddccd6535e9e12de65f92787a1e
(btrfs: remove cache only arguments from defrag path), @blockptr is no more
used.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/ctree.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 33e9dbdd043d..8f3d6f893585 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -4914,10 +4914,8 @@ again:
 		 * If it is too old, old, skip to the next one.
 		 */
 		while (slot < nritems) {
-			u64 blockptr;
 			u64 gen;
 
-			blockptr = btrfs_node_blockptr(cur, slot);
 			gen = btrfs_node_ptr_generation(cur, slot);
 			if (gen < min_trans) {
 				slot++;
-- 
cgit 


From 03b2f08b5f96db5d07dba54ae008e9fdf1396e05 Mon Sep 17 00:00:00 2001
From: "Geyslan G. Bem" <geyslan@gmail.com>
Date: Fri, 11 Oct 2013 15:35:45 -0300
Subject: btrfs: Fix memory leakage in the tree-log.c

In add_inode_ref() function:

Initializes local pointers.

Reduces the logical condition with the __add_inode_ref() return
value by using only one 'goto out'.

Centralizes the exiting, ensuring the freeing of all used memory.

Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Reviewed-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/tree-log.c | 33 +++++++++++++++++++--------------
 1 file changed, 19 insertions(+), 14 deletions(-)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index f2e0531dc719..d12696db9ada 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -1113,11 +1113,11 @@ static noinline int add_inode_ref(struct btrfs_trans_handle *trans,
 				  struct extent_buffer *eb, int slot,
 				  struct btrfs_key *key)
 {
-	struct inode *dir;
-	struct inode *inode;
+	struct inode *dir = NULL;
+	struct inode *inode = NULL;
 	unsigned long ref_ptr;
 	unsigned long ref_end;
-	char *name;
+	char *name = NULL;
 	int namelen;
 	int ret;
 	int search_done = 0;
@@ -1150,13 +1150,15 @@ static noinline int add_inode_ref(struct btrfs_trans_handle *trans,
 	 * care of the rest
 	 */
 	dir = read_one_inode(root, parent_objectid);
-	if (!dir)
-		return -ENOENT;
+	if (!dir) {
+		ret = -ENOENT;
+		goto out;
+	}
 
 	inode = read_one_inode(root, inode_objectid);
 	if (!inode) {
-		iput(dir);
-		return -EIO;
+		ret = -EIO;
+		goto out;
 	}
 
 	while (ref_ptr < ref_end) {
@@ -1169,14 +1171,16 @@ static noinline int add_inode_ref(struct btrfs_trans_handle *trans,
 			 */
 			if (!dir)
 				dir = read_one_inode(root, parent_objectid);
-			if (!dir)
-				return -ENOENT;
+			if (!dir) {
+				ret = -ENOENT;
+				goto out;
+			}
 		} else {
 			ret = ref_get_fields(eb, ref_ptr, &namelen, &name,
 					     &ref_index);
 		}
 		if (ret)
-			return ret;
+			goto out;
 
 		/* if we already have a perfect match, we're done */
 		if (!inode_in_dir(root, path, btrfs_ino(dir), btrfs_ino(inode),
@@ -1196,12 +1200,11 @@ static noinline int add_inode_ref(struct btrfs_trans_handle *trans,
 						      parent_objectid,
 						      ref_index, name, namelen,
 						      &search_done);
-				if (ret == 1) {
-					ret = 0;
+				if (ret) {
+					if (ret == 1)
+						ret = 0;
 					goto out;
 				}
-				if (ret)
-					goto out;
 			}
 
 			/* insert our name */
@@ -1215,6 +1218,7 @@ static noinline int add_inode_ref(struct btrfs_trans_handle *trans,
 
 		ref_ptr = (unsigned long)(ref_ptr + ref_struct_size) + namelen;
 		kfree(name);
+		name = NULL;
 		if (log_ref_ver) {
 			iput(dir);
 			dir = NULL;
@@ -1225,6 +1229,7 @@ static noinline int add_inode_ref(struct btrfs_trans_handle *trans,
 	ret = overwrite_item(trans, root, path, eb, slot, key);
 out:
 	btrfs_release_path(path);
+	kfree(name);
 	iput(dir);
 	iput(inode);
 	return ret;
-- 
cgit 


From f747cab7b75ba298df3ac234de9f1655957786cc Mon Sep 17 00:00:00 2001
From: Ilya Dryomov <idryomov@gmail.com>
Date: Thu, 10 Oct 2013 20:37:29 +0300
Subject: Btrfs: nuke a bogus rw_devices decrement in __btrfs_close_devices

On mount failures, __btrfs_close_devices can be called well before
dev-replace state is read and ->is_tgtdev_for_dev_replace is set.  This
leads to a bogus decrement of ->rw_devices and sets off a WARN_ON in
__btrfs_close_devices if replace target device happens to be on the
lists and we fail early in the mount sequence.  Fix this by checking
the devid instead of ->is_tgtdev_for_dev_replace before the decrement:
for replace targets devid is always equal to BTRFS_DEV_REPLACE_DEVID.

Cc: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/volumes.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index c846cc8eb32c..9dfe038015f7 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -666,7 +666,8 @@ static int __btrfs_close_devices(struct btrfs_fs_devices *fs_devices)
 		if (device->bdev)
 			fs_devices->open_devices--;
 
-		if (device->writeable && !device->is_tgtdev_for_dev_replace) {
+		if (device->writeable &&
+		    device->devid != BTRFS_DEV_REPLACE_DEVID) {
 			list_del_init(&device->dev_alloc_list);
 			fs_devices->rw_devices--;
 		}
-- 
cgit 


From adfa97cbdfe376b02bb3e1ea3166958fec35ca6f Mon Sep 17 00:00:00 2001
From: Ilya Dryomov <idryomov@gmail.com>
Date: Thu, 10 Oct 2013 20:39:28 +0300
Subject: Btrfs: don't leak ioctl args in btrfs_ioctl_dev_replace

struct btrfs_ioctl_dev_replace_args memory is leaked if replace is
requested on a read-only filesystem.  Fix it.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/ioctl.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 98d4ffef961e..08ac53c5f78d 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -3667,9 +3667,10 @@ static long btrfs_ioctl_dev_replace(struct btrfs_root *root, void __user *arg)
 
 	switch (p->cmd) {
 	case BTRFS_IOCTL_DEV_REPLACE_CMD_START:
-		if (root->fs_info->sb->s_flags & MS_RDONLY)
-			return -EROFS;
-
+		if (root->fs_info->sb->s_flags & MS_RDONLY) {
+			ret = -EROFS;
+			goto out;
+		}
 		if (atomic_xchg(
 			&root->fs_info->mutually_exclusive_operation_running,
 			1)) {
@@ -3695,7 +3696,7 @@ static long btrfs_ioctl_dev_replace(struct btrfs_root *root, void __user *arg)
 
 	if (copy_to_user(arg, p, sizeof(*p)))
 		ret = -EFAULT;
-
+out:
 	kfree(p);
 	return ret;
 }
-- 
cgit 


From e649e587cbc66287b2a4bff8b2113ad679a2b8d8 Mon Sep 17 00:00:00 2001
From: Ilya Dryomov <idryomov@gmail.com>
Date: Thu, 10 Oct 2013 20:40:21 +0300
Subject: Btrfs: disallow 'btrfs {balance,replace} cancel' on ro mounts

For both balance and replace, cancelling involves changing the on-disk
state and committing a transaction, which is not a good thing to do on
read-only filesystems.

Cc: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/dev-replace.c | 3 +++
 fs/btrfs/volumes.c     | 3 +++
 2 files changed, 6 insertions(+)

diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 9efb94e95858..98df26181349 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -650,6 +650,9 @@ static u64 __btrfs_dev_replace_cancel(struct btrfs_fs_info *fs_info)
 	u64 result;
 	int ret;
 
+	if (fs_info->sb->s_flags & MS_RDONLY)
+		return -EROFS;
+
 	mutex_lock(&dev_replace->lock_finishing_cancel_unmount);
 	btrfs_dev_replace_lock(dev_replace);
 	switch (dev_replace->replace_state) {
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 9dfe038015f7..5d7ea267d8ff 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -3424,6 +3424,9 @@ int btrfs_pause_balance(struct btrfs_fs_info *fs_info)
 
 int btrfs_cancel_balance(struct btrfs_fs_info *fs_info)
 {
+	if (fs_info->sb->s_flags & MS_RDONLY)
+		return -EROFS;
+
 	mutex_lock(&fs_info->balance_mutex);
 	if (!fs_info->balance_ctl) {
 		mutex_unlock(&fs_info->balance_mutex);
-- 
cgit 


From 30d133fc221a0ec50030c33aa7bf6931503894c7 Mon Sep 17 00:00:00 2001
From: Liu Bo <bo.li.liu@oracle.com>
Date: Fri, 11 Oct 2013 16:30:23 +0800
Subject: Btrfs: fixup error path in __btrfs_inc_extent_ref

When we fail to add a reference after a non-inline insertion by some reasons,
eg. ENOSPC, we'll abort the transaction, but we don't return this error to
the caller who has to walk around again to find something wrong, that's
unnecessary.

Also fixup other error paths to keep it simple.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/extent-tree.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 054b11dc8edf..c4971108f126 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1979,7 +1979,6 @@ static int __btrfs_inc_extent_ref(struct btrfs_trans_handle *trans,
 	struct btrfs_extent_item *item;
 	u64 refs;
 	int ret;
-	int err = 0;
 
 	path = btrfs_alloc_path();
 	if (!path)
@@ -1992,14 +1991,9 @@ static int __btrfs_inc_extent_ref(struct btrfs_trans_handle *trans,
 					   path, bytenr, num_bytes, parent,
 					   root_objectid, owner, offset,
 					   refs_to_add, extent_op);
-	if (ret == 0)
+	if (ret != -EAGAIN)
 		goto out;
 
-	if (ret != -EAGAIN) {
-		err = ret;
-		goto out;
-	}
-
 	leaf = path->nodes[0];
 	item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_extent_item);
 	refs = btrfs_extent_refs(leaf, item);
@@ -2021,7 +2015,7 @@ static int __btrfs_inc_extent_ref(struct btrfs_trans_handle *trans,
 		btrfs_abort_transaction(trans, root, ret);
 out:
 	btrfs_free_path(path);
-	return err;
+	return ret;
 }
 
 static int run_delayed_data_ref(struct btrfs_trans_handle *trans,
-- 
cgit 


From 27087f370174ebb298cdf6dcb36b1e4dcbe34e93 Mon Sep 17 00:00:00 2001
From: Stefan Behrens <sbehrens@giantdisaster.de>
Date: Fri, 11 Oct 2013 15:20:42 +0200
Subject: Btrfs: init device stats for new devices

Device stats are only initialized (read from tree items) on mount.
Trying to read device stats after adding or replacing new devices will
return errors.

btrfs_init_new_device() and btrfs_init_dev_replace_tgtdev() are the two
functions that allocate and initialize new btrfs_device structures after
a filesystem is mounted. They set the device stats to zero by using
kzalloc() which is correct for new devices. The only missing thing was
to declare these stats as being valid (device->dev_stats_valid = 1) and
this patch adds this missing code.

This is the reproducer:

TEST_DEV1=/dev/sdzzzzz1
TEST_DEV2=/dev/sdzzzzz2
TEST_DEV3=/dev/sdzzzzz3
TEST_MNT=/mnt
mkfs.btrfs $TEST_DEV1
mount $TEST_DEV1 $TEST_MNT
btrfs device add $TEST_DEV2 $TEST_MNT
btrfs device stat $TEST_MNT
btrfs replace start -B $TEST_DEV2 $TEST_DEV3 $TEST_MNT
btrfs device stat $TEST_MNT
umount $TEST_MNT

Reported-by: Ondrej Kunc <kunc88@gmail.com>
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/volumes.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 5d7ea267d8ff..f492f7eabf29 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2042,6 +2042,7 @@ int btrfs_init_new_device(struct btrfs_root *root, char *device_path)
 	device->in_fs_metadata = 1;
 	device->is_tgtdev_for_dev_replace = 0;
 	device->mode = FMODE_EXCL;
+	device->dev_stats_valid = 1;
 	set_blocksize(device->bdev, 4096);
 
 	if (seeding_dev) {
@@ -2209,6 +2210,7 @@ int btrfs_init_dev_replace_tgtdev(struct btrfs_root *root, char *device_path,
 	device->in_fs_metadata = 1;
 	device->is_tgtdev_for_dev_replace = 1;
 	device->mode = FMODE_EXCL;
+	device->dev_stats_valid = 1;
 	set_blocksize(device->bdev, 4096);
 	device->fs_devices = fs_info->fs_devices;
 	list_add(&device->dev_list, &fs_info->fs_devices->devices);
-- 
cgit 


From 361c093d7f99c3f6cbb07d5c580ce778ab418c42 Mon Sep 17 00:00:00 2001
From: Stefan Behrens <sbehrens@giantdisaster.de>
Date: Fri, 11 Oct 2013 17:14:58 +0200
Subject: Btrfs: Wait for uuid-tree rebuild task on remount read-only

If the user remounts the filesystem read-only while the uuid-tree
scan and rebuild task is still running (this happens once after the
filesystem was mounted with an old kernel, or when forced with the
mount options), the remount should wait on the tasks completion
before setting the filesystem read-only. Otherwise the background
task continues to write to the filesystem which is apparently not
what users expect.

The reproducer:

TEST_DEV=/dev/sdzzzzz1
TEST_MNT=/mnt
mkfs.btrfs -f $TEST_DEV
mount $TEST_DEV $TEST_MNT
for i in `seq 50000`; do btrfs subvolume create ${TEST_MNT}/$i; done
umount $TEST_MNT
mount $TEST_DEV $TEST_MNT -o rescan_uuid_tree
sleep 1
ps -elf | fgrep '[btrfs-uuid]' | grep -v grep
mount $TEST_DEV $TEST_MNT -o ro,remount
ps -elf | fgrep '[btrfs-uuid]' | grep -v grep
sleep 1
umount $TEST_MNT

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/super.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 1f62c1ccab1f..02f552f11829 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1330,6 +1330,12 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data)
 		 * this also happens on 'umount -rf' or on shutdown, when
 		 * the filesystem is busy.
 		 */
+
+		/* wait for the uuid_scan task to finish */
+		down(&fs_info->uuid_tree_rescan_sem);
+		/* avoid complains from lockdep et al. */
+		up(&fs_info->uuid_tree_rescan_sem);
+
 		sb->s_flags |= MS_RDONLY;
 
 		btrfs_dev_replace_suspend_for_unmount(fs_info);
-- 
cgit 


From 3c77bd94ecb4ad2653d1e3eb22295018533a1e21 Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Sat, 12 Oct 2013 20:32:59 +0100
Subject: Btrfs: don't leak delayed node on path allocation failure

If the path allocation failed, we would return without decrementing
the reference count in the delayed node we got before, resulting
in a leak.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/delayed-inode.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index cbd9523ad09c..df1a496bc8d4 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -1174,8 +1174,10 @@ int btrfs_commit_inode_delayed_items(struct btrfs_trans_handle *trans,
 	mutex_unlock(&delayed_node->mutex);
 
 	path = btrfs_alloc_path();
-	if (!path)
+	if (!path) {
+		btrfs_release_delayed_node(delayed_node);
 		return -ENOMEM;
+	}
 	path->leave_spinning = 1;
 
 	block_rsv = trans->block_rsv;
-- 
cgit 


From 5ede859b00af261c78b3848a362253c76652e035 Mon Sep 17 00:00:00 2001
From: chandan <chandan@linux.vnet.ibm.com>
Date: Mon, 14 Oct 2013 18:44:39 +0530
Subject: Btrfs: btrfs_add_ordered_operation: Fix last modified transaction
 comparison.

Comparison of an inode's last modified transaction with the last committed
transaction is incorrect. Fix it.

Signed-off-by: chandan <chandan@linux.vnet.ibm.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/ordered-data.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index c702cb62f78a..1a36a0c3ee27 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -1076,7 +1076,7 @@ void btrfs_add_ordered_operation(struct btrfs_trans_handle *trans,
 	 * if this file hasn't been changed since the last transaction
 	 * commit, we can safely return without doing anything
 	 */
-	if (last_mod < root->fs_info->last_trans_committed)
+	if (last_mod <= root->fs_info->last_trans_committed)
 		return;
 
 	spin_lock(&root->fs_info->ordered_root_lock);
-- 
cgit 


From 229eed4348a482c11cf8d494392305a85ed478f9 Mon Sep 17 00:00:00 2001
From: "Geyslan G. Bem" <geyslan@gmail.com>
Date: Mon, 14 Oct 2013 12:18:25 -0300
Subject: btrfs: simplify kmalloc+copy_from_user to memdup_user

Use memdup_user rather than duplicating its implementation
This is a little bit restricted to reduce false positives

The semantic patch that makes this report is available
in scripts/coccinelle/api/memdup_user.cocci.

More information about semantic patching is available at
http://coccinelle.lip6.fr/

Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/ioctl.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 08ac53c5f78d..864aab4b1bfa 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2715,15 +2715,10 @@ static long btrfs_ioctl_file_extent_same(struct file *file,
 	size = sizeof(tmp) +
 		tmp.dest_count * sizeof(struct btrfs_ioctl_same_extent_info);
 
-	same = kmalloc(size, GFP_NOFS);
-	if (!same) {
-		ret = -EFAULT;
-		goto out;
-	}
+	same = memdup_user((struct btrfs_ioctl_same_args __user *)argp, size);
 
-	if (copy_from_user(same,
-			   (struct btrfs_ioctl_same_args __user *)argp, size)) {
-		ret = -EFAULT;
+	if (IS_ERR(same)) {
+		ret = PTR_ERR(same);
 		goto out;
 	}
 
-- 
cgit 


From e93ae26fe1123e9077e79cc7af8a0d42adf4812f Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Mon, 14 Oct 2013 22:49:11 +0100
Subject: Btrfs: optimize tree-log.c:count_inode_refs()

Avoid repeated tree searches by processing all inode ref items in
a leaf at once instead of processing one at a time, followed by a
path release and a tree search for a key with a decremented offset.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/tree-log.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index d12696db9ada..d45c04b30690 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -1312,6 +1312,7 @@ static int count_inode_refs(struct btrfs_root *root,
 				break;
 			path->slots[0]--;
 		}
+process_slot:
 		btrfs_item_key_to_cpu(path->nodes[0], &key,
 				      path->slots[0]);
 		if (key.objectid != ino ||
@@ -1332,6 +1333,10 @@ static int count_inode_refs(struct btrfs_root *root,
 
 		if (key.offset == 0)
 			break;
+		if (path->slots[0] > 0) {
+			path->slots[0]--;
+			goto process_slot;
+		}
 		key.offset--;
 		btrfs_release_path(path);
 	}
-- 
cgit 


From e8b0d724d596f2ac1264ad830a04ef8e415be956 Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Tue, 15 Oct 2013 00:12:27 +0100
Subject: Btrfs: fix btrfs_prev_leaf() previous key computation

If we decrement the key type, we must reset its offset to the largest
possible offset (u64)-1. If we decrement the key's objectid, then we
must reset the key's type and offset to their largest possible values,
(u8)-1 and (u64)-1 respectively. Not doing so can make us miss an
items in the tree.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/ctree.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 8f3d6f893585..a749121203df 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -4827,14 +4827,18 @@ static int btrfs_prev_leaf(struct btrfs_root *root, struct btrfs_path *path)
 
 	btrfs_item_key_to_cpu(path->nodes[0], &key, 0);
 
-	if (key.offset > 0)
+	if (key.offset > 0) {
 		key.offset--;
-	else if (key.type > 0)
+	} else if (key.type > 0) {
 		key.type--;
-	else if (key.objectid > 0)
+		key.offset = (u64)-1;
+	} else if (key.objectid > 0) {
 		key.objectid--;
-	else
+		key.type = (u8)-1;
+		key.offset = (u64)-1;
+	} else {
 		return 1;
+	}
 
 	btrfs_release_path(path);
 	ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
-- 
cgit 


From ff76b0565523319d7c1c0b51d5a5a8915d33efab Mon Sep 17 00:00:00 2001
From: Stefan Behrens <sbehrens@giantdisaster.de>
Date: Tue, 15 Oct 2013 20:08:15 +0200
Subject: Btrfs: Don't allocate inode that is already in use

Due to an off-by-one error, it is possible to reproduce a bug
when the inode cache is used.

The same inode number is assigned twice, the second time this
leads to an EEXIST in btrfs_insert_empty_items().

The issue can happen when a file is removed right after a subvolume
is created and then a new inode number is created before the
inodes in free_inode_pinned are processed.
unlink() calls btrfs_return_ino() which calls start_caching() in this
case which adds [highest_ino + 1, BTRFS_LAST_FREE_OBJECTID] by
searching for the highest inode (which already cannot find the
unlinked one anymore in btrfs_find_free_objectid()). So if this
unlinked inode's number is equal to the highest_ino + 1 (or >= this value
instead of > this value which was the off-by-one error), we mustn't add
the inode number to free_ino_pinned (caching_thread() does it right).
In this case we need to try directly to add the number to the inode_cache
which will fail in this case.

When this inode number is allocated while it is still in free_ino_pinned,
it is allocated and still added to the free inode cache when the
pinned inodes are processed, thus one of the following inode number
allocations will get an inode that is already in use and fail with EEXIST
in btrfs_insert_empty_items().

One example which was created with the reproducer below:
Create a snapshot, work in the newly created snapshot for the rest.
In unlink(inode 34284) call btrfs_return_ino() which calls start_caching().
start_caching() calls add_free_space [34284, 18446744073709517077].
In btrfs_return_ino(), call start_caching pinned [34284, 1] which is wrong.
mkdir() call btrfs_find_ino_for_alloc() which returns the number 34284.
btrfs_unpin_free_ino calls add_free_space [34284, 1].
mkdir() call btrfs_find_ino_for_alloc() which returns the number 34284.
EEXIST when the new inode is inserted.

One possible reproducer is this one:
 #!/bin/sh
 # preparation
TEST_DEV=/dev/sdc1
TEST_MNT=/mnt
umount ${TEST_MNT} 2>/dev/null || true
mkfs.btrfs -f ${TEST_DEV}
mount ${TEST_DEV} ${TEST_MNT} -o \
 rw,relatime,compress=lzo,space_cache,inode_cache
btrfs subv create ${TEST_MNT}/s1
for i in `seq 34027`; do touch ${TEST_MNT}/s1/${i}; done
btrfs subv snap ${TEST_MNT}/s1 ${TEST_MNT}/s2
FILENAME=`find ${TEST_MNT}/s1/ -inum 4085 | sed 's|^.*/\([^/]*\)$|\1|'`
rm ${TEST_MNT}/s2/$FILENAME
touch ${TEST_MNT}/s2/$FILENAME
 # the following steps can be repeated to reproduce the issue again and again
[ -e ${TEST_MNT}/s3 ] && btrfs subv del ${TEST_MNT}/s3
btrfs subv snap ${TEST_MNT}/s2 ${TEST_MNT}/s3
rm ${TEST_MNT}/s3/$FILENAME
touch ${TEST_MNT}/s3/$FILENAME
ls -alFi ${TEST_MNT}/s?/$FILENAME
touch ${TEST_MNT}/s3/_1 || logger FAILED
ls -alFi ${TEST_MNT}/s?/_1
touch ${TEST_MNT}/s3/_2 || logger FAILED
ls -alFi ${TEST_MNT}/s?/_2
touch ${TEST_MNT}/s3/__1 || logger FAILED
ls -alFi ${TEST_MNT}/s?/__1
touch ${TEST_MNT}/s3/__2 || logger FAILED
ls -alFi ${TEST_MNT}/s?/__2
 # if the above is not enough, add the following loop:
for i in `seq 3 9`; do touch ${TEST_MNT}/s3/__${i} || logger FAILED; done
 #for i in `seq 3 34027`; do touch ${TEST_MNT}/s3/__${i} || logger FAILED; done
 # one of the touch(1) calls in s3 fail due to EEXIST because the inode is
 # already in use that btrfs_find_ino_for_alloc() returns.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Reviewed-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/inode-map.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
index 014de497e888..ec08004a6a20 100644
--- a/fs/btrfs/inode-map.c
+++ b/fs/btrfs/inode-map.c
@@ -237,7 +237,7 @@ again:
 		start_caching(root);
 
 		if (objectid <= root->cache_progress ||
-		    objectid > root->highest_objectid)
+		    objectid >= root->highest_objectid)
 			__btrfs_add_free_space(ctl, objectid, 1);
 		else
 			__btrfs_add_free_space(pinned, objectid, 1);
-- 
cgit 


From 8185554d3eb09d23a805456b6fa98dcbb34aa518 Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Tue, 15 Oct 2013 18:44:00 +0100
Subject: Btrfs: fix incorrect inode acl reset

When a directory has a default ACL and a subdirectory is created
under that directory, btrfs_init_acl() is called when the
subdirectory's inode is created to initialize the inode's ACL
(inherited from the parent directory) but it was clearing the ACL
from the inode after setting it if posix_acl_create() returned
success, instead of clearing it only if it returned an error.

To reproduce this issue:

$ mkfs.btrfs -f /dev/loop0
$ mount /dev/loop0 /mnt
$ mkdir /mnt/acl
$ setfacl -d --set u::rwx,g::rwx,o::- /mnt/acl
$ getfacl /mnt/acl
user::rwx
group::rwx
other::r-x
default:user::rwx
default:group::rwx
default:other::---

$ mkdir /mnt/acl/dir1
$ getfacl /mnt/acl/dir1
user::rwx
group::rwx
other::---

After unmounting and mounting again the filesystem, fgetacl returned the
expected ACL:

$ umount /mnt/acl
$ mount /dev/loop0 /mnt
$ getfacl /mnt/acl/dir1
user::rwx
group::rwx
other::---
default:user::rwx
default:group::rwx
default:other::---

Meaning that the underlying xattr was persisted.

Reported-by: Giuseppe Fierro <giuseppe@fierro.org>
Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/acl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/acl.c b/fs/btrfs/acl.c
index e15d2b0d8d3b..0890c83643e9 100644
--- a/fs/btrfs/acl.c
+++ b/fs/btrfs/acl.c
@@ -229,7 +229,7 @@ int btrfs_init_acl(struct btrfs_trans_handle *trans,
 		if (ret > 0) {
 			/* we need an acl */
 			ret = btrfs_set_acl(trans, inode, acl, ACL_TYPE_ACCESS);
-		} else {
+		} else if (ret < 0) {
 			cache_no_acl(inode);
 		}
 	} else {
-- 
cgit 


From 4546bcaeba435c1d0b7f38c011cbb2367497ca8d Mon Sep 17 00:00:00 2001
From: Zach Brown <zab@redhat.com>
Date: Wed, 16 Oct 2013 12:10:32 -0700
Subject: btrfs: use get_seconds() instead of btrfs wrapper

Signed-off-by: Zach Brown <zab@redhat.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/dev-replace.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 98df26181349..a36343a2dd68 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -38,7 +38,6 @@
 #include "rcu-string.h"
 #include "dev-replace.h"
 
-static u64 btrfs_get_seconds_since_1970(void);
 static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info,
 				       int scrub_ret);
 static void btrfs_dev_replace_update_device_in_mapping_tree(
@@ -296,13 +295,6 @@ void btrfs_after_dev_replace_commit(struct btrfs_fs_info *fs_info)
 		dev_replace->cursor_left_last_write_of_item;
 }
 
-static u64 btrfs_get_seconds_since_1970(void)
-{
-	struct timespec t = CURRENT_TIME_SEC;
-
-	return t.tv_sec;
-}
-
 int btrfs_dev_replace_start(struct btrfs_root *root,
 			    struct btrfs_ioctl_dev_replace_args *args)
 {
@@ -390,7 +382,7 @@ int btrfs_dev_replace_start(struct btrfs_root *root,
 	 * go to the tgtdev as well (refer to btrfs_map_block()).
 	 */
 	dev_replace->replace_state = BTRFS_IOCTL_DEV_REPLACE_STATE_STARTED;
-	dev_replace->time_started = btrfs_get_seconds_since_1970();
+	dev_replace->time_started = get_seconds();
 	dev_replace->cursor_left = 0;
 	dev_replace->committed_cursor_left = 0;
 	dev_replace->cursor_left_last_write_of_item = 0;
@@ -493,7 +485,7 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info,
 			  : BTRFS_IOCTL_DEV_REPLACE_STATE_FINISHED;
 	dev_replace->tgtdev = NULL;
 	dev_replace->srcdev = NULL;
-	dev_replace->time_stopped = btrfs_get_seconds_since_1970();
+	dev_replace->time_stopped = get_seconds();
 	dev_replace->item_needs_writeback = 1;
 
 	if (scrub_ret) {
@@ -671,7 +663,7 @@ static u64 __btrfs_dev_replace_cancel(struct btrfs_fs_info *fs_info)
 		break;
 	}
 	dev_replace->replace_state = BTRFS_IOCTL_DEV_REPLACE_STATE_CANCELED;
-	dev_replace->time_stopped = btrfs_get_seconds_since_1970();
+	dev_replace->time_stopped = get_seconds();
 	dev_replace->item_needs_writeback = 1;
 	btrfs_dev_replace_unlock(dev_replace);
 	btrfs_scrub_cancel(fs_info);
@@ -706,7 +698,7 @@ void btrfs_dev_replace_suspend_for_unmount(struct btrfs_fs_info *fs_info)
 	case BTRFS_IOCTL_DEV_REPLACE_STATE_STARTED:
 		dev_replace->replace_state =
 			BTRFS_IOCTL_DEV_REPLACE_STATE_SUSPENDED;
-		dev_replace->time_stopped = btrfs_get_seconds_since_1970();
+		dev_replace->time_stopped = get_seconds();
 		dev_replace->item_needs_writeback = 1;
 		pr_info("btrfs: suspending dev_replace for unmount\n");
 		break;
-- 
cgit 


From 1877e1a747db33d7264d8046e96373962da72a3d Mon Sep 17 00:00:00 2001
From: Zach Brown <zab@redhat.com>
Date: Wed, 16 Oct 2013 12:10:33 -0700
Subject: btrfs: remove move_pages()

move_pages() has an inefficient backwards byte copy of regions of two
different pages.  They're different pages so the regions won't overlap
and it could use memcpy().

At that point, though, move_pages() would be a slightly dimmer
re-implementation of copy_pages() that lacked the test for overlapping
page regions.

So remove move_pages() and just call copy_pages().

Signed-off-by: Zach Brown <zab@redhat.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/extent_io.c | 19 +------------------
 1 file changed, 1 insertion(+), 18 deletions(-)

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 5439f24ab06b..5bf98d2ee70f 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -5082,23 +5082,6 @@ void copy_extent_buffer(struct extent_buffer *dst, struct extent_buffer *src,
 	}
 }
 
-static void move_pages(struct page *dst_page, struct page *src_page,
-		       unsigned long dst_off, unsigned long src_off,
-		       unsigned long len)
-{
-	char *dst_kaddr = page_address(dst_page);
-	if (dst_page == src_page) {
-		memmove(dst_kaddr + dst_off, dst_kaddr + src_off, len);
-	} else {
-		char *src_kaddr = page_address(src_page);
-		char *p = dst_kaddr + dst_off + len;
-		char *s = src_kaddr + src_off + len;
-
-		while (len--)
-			*--p = *--s;
-	}
-}
-
 static inline bool areas_overlap(unsigned long src, unsigned long dst, unsigned long len)
 {
 	unsigned long distance = (src > dst) ? src - dst : dst - src;
@@ -5209,7 +5192,7 @@ void memmove_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
 
 		cur = min_t(unsigned long, len, src_off_in_page + 1);
 		cur = min(cur, dst_off_in_page + 1);
-		move_pages(extent_buffer_page(dst, dst_i),
+		copy_pages(extent_buffer_page(dst, dst_i),
 			   extent_buffer_page(dst, src_i),
 			   dst_off_in_page - cur + 1,
 			   src_off_in_page - cur + 1, cur);
-- 
cgit 


From 8b558c5f097b636209b654f4d7775ac96054d6e3 Mon Sep 17 00:00:00 2001
From: Zach Brown <zab@redhat.com>
Date: Wed, 16 Oct 2013 12:10:34 -0700
Subject: btrfs: remove fs/btrfs/compat.h

fs/btrfs/compat.h only contained trivial macro wrappers of drop_nlink()
and inc_nlink().  This doesn't belong in mainline.

Signed-off-by: Zach Brown <zab@redhat.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/compat.h      | 7 -------
 fs/btrfs/compression.c | 1 -
 fs/btrfs/dev-replace.c | 1 -
 fs/btrfs/disk-io.c     | 1 -
 fs/btrfs/export.c      | 1 -
 fs/btrfs/extent-tree.c | 1 -
 fs/btrfs/extent_io.c   | 1 -
 fs/btrfs/file.c        | 1 -
 fs/btrfs/inode.c       | 5 ++---
 fs/btrfs/ioctl.c       | 1 -
 fs/btrfs/raid56.c      | 1 -
 fs/btrfs/super.c       | 1 -
 fs/btrfs/tree-log.c    | 9 ++++-----
 fs/btrfs/volumes.c     | 1 -
 14 files changed, 6 insertions(+), 26 deletions(-)
 delete mode 100644 fs/btrfs/compat.h

diff --git a/fs/btrfs/compat.h b/fs/btrfs/compat.h
deleted file mode 100644
index 7c4503ef6efd..000000000000
--- a/fs/btrfs/compat.h
+++ /dev/null
@@ -1,7 +0,0 @@
-#ifndef _COMPAT_H_
-#define _COMPAT_H_
-
-#define btrfs_drop_nlink(inode) drop_nlink(inode)
-#define btrfs_inc_nlink(inode)	inc_nlink(inode)
-
-#endif /* _COMPAT_H_ */
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index 6aad98cb343f..df019c7f58b2 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -32,7 +32,6 @@
 #include <linux/writeback.h>
 #include <linux/bit_spinlock.h>
 #include <linux/slab.h>
-#include "compat.h"
 #include "ctree.h"
 #include "disk-io.h"
 #include "transaction.h"
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index a36343a2dd68..cb94310db072 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -26,7 +26,6 @@
 #include <linux/kthread.h>
 #include <linux/math64.h>
 #include <asm/div64.h>
-#include "compat.h"
 #include "ctree.h"
 #include "extent_map.h"
 #include "disk-io.h"
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index ebc784aba3f5..62c4aba221bb 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -33,7 +33,6 @@
 #include <linux/uuid.h>
 #include <linux/semaphore.h>
 #include <asm/unaligned.h>
-#include "compat.h"
 #include "ctree.h"
 #include "disk-io.h"
 #include "transaction.h"
diff --git a/fs/btrfs/export.c b/fs/btrfs/export.c
index 4b8691607373..41422a3de8ed 100644
--- a/fs/btrfs/export.c
+++ b/fs/btrfs/export.c
@@ -5,7 +5,6 @@
 #include "btrfs_inode.h"
 #include "print-tree.h"
 #include "export.h"
-#include "compat.h"
 
 #define BTRFS_FID_SIZE_NON_CONNECTABLE (offsetof(struct btrfs_fid, \
 						 parent_objectid) / 4)
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index c4971108f126..4062a65f9fb7 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -25,7 +25,6 @@
 #include <linux/slab.h>
 #include <linux/ratelimit.h>
 #include <linux/percpu_counter.h>
-#include "compat.h"
 #include "hash.h"
 #include "ctree.h"
 #include "disk-io.h"
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 5bf98d2ee70f..a93bab452183 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -13,7 +13,6 @@
 #include <linux/cleancache.h>
 #include "extent_io.h"
 #include "extent_map.h"
-#include "compat.h"
 #include "ctree.h"
 #include "btrfs_inode.h"
 #include "volumes.h"
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index bf3465cf455a..14b41d569a3e 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -39,7 +39,6 @@
 #include "print-tree.h"
 #include "tree-log.h"
 #include "locking.h"
-#include "compat.h"
 #include "volumes.h"
 
 static struct kmem_cache *btrfs_inode_defrag_cachep;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 9d39d08a1555..14c6ab74cf8c 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -43,7 +43,6 @@
 #include <linux/btrfs.h>
 #include <linux/blkdev.h>
 #include <linux/posix_acl_xattr.h>
-#include "compat.h"
 #include "ctree.h"
 #include "disk-io.h"
 #include "transaction.h"
@@ -3645,7 +3644,7 @@ int btrfs_unlink_inode(struct btrfs_trans_handle *trans,
 	int ret;
 	ret = __btrfs_unlink_inode(trans, root, dir, inode, name, name_len);
 	if (!ret) {
-		btrfs_drop_nlink(inode);
+		drop_nlink(inode);
 		ret = btrfs_update_inode(trans, root, inode);
 	}
 	return ret;
@@ -5738,7 +5737,7 @@ static int btrfs_link(struct dentry *old_dentry, struct inode *dir,
 		goto fail;
 	}
 
-	btrfs_inc_nlink(inode);
+	inc_nlink(inode);
 	inode_inc_iversion(inode);
 	inode->i_ctime = CURRENT_TIME;
 	ihold(inode);
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 864aab4b1bfa..9ea05506cb84 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -44,7 +44,6 @@
 #include <linux/uuid.h>
 #include <linux/btrfs.h>
 #include <linux/uaccess.h>
-#include "compat.h"
 #include "ctree.h"
 #include "disk-io.h"
 #include "transaction.h"
diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
index d0ecfbd9cc9f..24ac21840a9a 100644
--- a/fs/btrfs/raid56.c
+++ b/fs/btrfs/raid56.c
@@ -33,7 +33,6 @@
 #include <linux/raid/xor.h>
 #include <linux/vmalloc.h>
 #include <asm/div64.h>
-#include "compat.h"
 #include "ctree.h"
 #include "extent_map.h"
 #include "disk-io.h"
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 02f552f11829..c9079db7441e 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -42,7 +42,6 @@
 #include <linux/cleancache.h>
 #include <linux/ratelimit.h>
 #include <linux/btrfs.h>
-#include "compat.h"
 #include "delayed-inode.h"
 #include "ctree.h"
 #include "disk-io.h"
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index d45c04b30690..f98002ed32b1 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -26,7 +26,6 @@
 #include "locking.h"
 #include "print-tree.h"
 #include "backref.h"
-#include "compat.h"
 #include "tree-log.h"
 #include "hash.h"
 
@@ -936,7 +935,7 @@ again:
 					    parent_objectid,
 					    victim_name,
 					    victim_name_len)) {
-				btrfs_inc_nlink(inode);
+				inc_nlink(inode);
 				btrfs_release_path(path);
 
 				ret = btrfs_unlink_inode(trans, root, dir,
@@ -1006,7 +1005,7 @@ again:
 				victim_parent = read_one_inode(root,
 							       parent_objectid);
 				if (victim_parent) {
-					btrfs_inc_nlink(inode);
+					inc_nlink(inode);
 					btrfs_release_path(path);
 
 					ret = btrfs_unlink_inode(trans, root,
@@ -1490,7 +1489,7 @@ static noinline int link_to_fixup_dir(struct btrfs_trans_handle *trans,
 		if (!inode->i_nlink)
 			set_nlink(inode, 1);
 		else
-			btrfs_inc_nlink(inode);
+			inc_nlink(inode);
 		ret = btrfs_update_inode(trans, root, inode);
 	} else if (ret == -EEXIST) {
 		ret = 0;
@@ -1851,7 +1850,7 @@ again:
 				goto out;
 			}
 
-			btrfs_inc_nlink(inode);
+			inc_nlink(inode);
 			ret = btrfs_unlink_inode(trans, root, dir, inode,
 						 name, name_len);
 			if (!ret)
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index f492f7eabf29..716abee16a5b 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -28,7 +28,6 @@
 #include <linux/raid/pq.h>
 #include <linux/semaphore.h>
 #include <asm/div64.h>
-#include "compat.h"
 #include "ctree.h"
 #include "extent_map.h"
 #include "disk-io.h"
-- 
cgit 


From cab45e22da48b523665b3566f43527a2fead1d1e Mon Sep 17 00:00:00 2001
From: Jeff Mahoney <jeffm@suse.com>
Date: Wed, 16 Oct 2013 16:27:01 -0400
Subject: btrfs: add tracing for failed reservations

When debugging ENOSPC issues, it's nice to be able to see which
reservations failed as well as the ones which succeeded.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/extent-tree.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 4062a65f9fb7..a807acc9a63e 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3684,6 +3684,9 @@ commit_trans:
 			goto again;
 		}
 
+		trace_btrfs_space_reservation(root->fs_info,
+					      "space_info:enospc",
+					      data_sinfo->flags, bytes, 1);
 		return -ENOSPC;
 	}
 	data_sinfo->bytes_may_use += bytes;
@@ -4335,6 +4338,10 @@ out:
 		    !block_rsv_use_bytes(global_rsv, orig_bytes))
 			ret = 0;
 	}
+	if (ret == -ENOSPC)
+		trace_btrfs_space_reservation(root->fs_info,
+					      "space_info:enospc",
+					      space_info->flags, orig_bytes, 1);
 	if (flushing) {
 		spin_lock(&space_info->lock);
 		space_info->flush = 0;
-- 
cgit 


From 55994887082d6e9b3d31b55fc5be158fd97eadbc Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Fri, 18 Oct 2013 15:42:56 +0100
Subject: Btrfs: optimize extent item search in run_delayed_extent_op

Instead of doing another extent tree search if the first search failed
to find a metadata item, check if the previous item in the leaf is an
extent item and use it if it is, otherwise do the second tree search
for an extent item.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/extent-tree.c | 27 ++++++++++++++++++++-------
 1 file changed, 20 insertions(+), 7 deletions(-)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index a807acc9a63e..4595a65db729 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -2130,15 +2130,28 @@ again:
 	}
 	if (ret > 0) {
 		if (metadata) {
-			btrfs_release_path(path);
-			metadata = 0;
+			if (path->slots[0] > 0) {
+				path->slots[0]--;
+				btrfs_item_key_to_cpu(path->nodes[0], &key,
+						      path->slots[0]);
+				if (key.objectid == node->bytenr &&
+				    key.type == BTRFS_EXTENT_ITEM_KEY &&
+				    key.offset == node->num_bytes)
+					ret = 0;
+			}
+			if (ret > 0) {
+				btrfs_release_path(path);
+				metadata = 0;
 
-			key.offset = node->num_bytes;
-			key.type = BTRFS_EXTENT_ITEM_KEY;
-			goto again;
+				key.objectid = node->bytenr;
+				key.offset = node->num_bytes;
+				key.type = BTRFS_EXTENT_ITEM_KEY;
+				goto again;
+			}
+		} else {
+			err = -EIO;
+			goto out;
 		}
-		err = -EIO;
-		goto out;
 	}
 
 	leaf = path->nodes[0];
-- 
cgit 


From a5f519c91df8d81b3e6ed3489806ba66f6b82ca7 Mon Sep 17 00:00:00 2001
From: Stefan Behrens <sbehrens@giantdisaster.de>
Date: Mon, 21 Oct 2013 14:18:17 +0200
Subject: Btrfs: fix check_int 'leaf item out of bounce' regression

Yet another cleanup patch broke code for which no xfstest exists.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/check-integrity.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index 1c47be187240..3281f7ebc0f7 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -1038,7 +1038,7 @@ leaf_item_out_of_bounce_error:
 						     disk_item_offset,
 						     sizeof(struct btrfs_item));
 			item_offset = btrfs_stack_item_offset(&disk_item);
-			item_size = btrfs_stack_item_offset(&disk_item);
+			item_size = btrfs_stack_item_size(&disk_item);
 			disk_key = &disk_item.key;
 			type = btrfs_disk_key_type(disk_key);
 
-- 
cgit 


From 301993a4a13b34c13f7f2a7ed3429d231a6d6166 Mon Sep 17 00:00:00 2001
From: Stefan Behrens <sbehrens@giantdisaster.de>
Date: Mon, 21 Oct 2013 18:46:58 +0200
Subject: Btrfs: check_int, remove warning for mixed-mode

In mixed-mode, when a data-block was later reused for metadata, a
warning was printed. This condition is now filtered out and the
warning is eliminated in this case.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/check-integrity.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index 3281f7ebc0f7..656b07637e39 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -1900,7 +1900,9 @@ again:
 							       dev_state,
 							       dev_bytenr);
 			}
-			if (block->logical_bytenr != bytenr) {
+			if (block->logical_bytenr != bytenr &&
+			    !(!block->is_metadata &&
+			      block->logical_bytenr == 0))
 				printk(KERN_INFO
 				       "Written block @%llu (%s/%llu/%d)"
 				       " found in hash table, %c,"
@@ -1910,15 +1912,14 @@ again:
 				       block->mirror_num,
 				       btrfsic_get_block_type(state, block),
 				       block->logical_bytenr);
-				block->logical_bytenr = bytenr;
-			} else if (state->print_mask &
-				   BTRFSIC_PRINT_MASK_VERBOSE)
+			else if (state->print_mask & BTRFSIC_PRINT_MASK_VERBOSE)
 				printk(KERN_INFO
 				       "Written block @%llu (%s/%llu/%d)"
 				       " found in hash table, %c.\n",
 				       bytenr, dev_state->name, dev_bytenr,
 				       block->mirror_num,
 				       btrfsic_get_block_type(state, block));
+			block->logical_bytenr = bytenr;
 		} else {
 			if (num_pages * PAGE_CACHE_SIZE <
 			    state->datablock_size) {
-- 
cgit 


From ed2590953bd06b892f0411fc94e19175d32f197a Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Fri, 25 Oct 2013 11:36:01 -0400
Subject: Btrfs: stop using vfs_read in send

Apparently we don't actually close the files until we return to userspace, so
stop using vfs_read in send.  This is actually better for us since we can avoid
all the extra logic of holding the file we're sending open and making sure to
clean it up.  This will fix people who have been hitting too many files open
errors when trying to send.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/send.c | 175 +++++++++++++++++++++++---------------------------------
 1 file changed, 72 insertions(+), 103 deletions(-)

diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index 0a894399be16..e26a3a62fd3f 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -121,7 +121,6 @@ struct send_ctx {
 	struct list_head name_cache_list;
 	int name_cache_size;
 
-	struct file *cur_inode_filp;
 	char *read_buf;
 };
 
@@ -2119,77 +2118,6 @@ out:
 	return ret;
 }
 
-/*
- * Called for regular files when sending extents data. Opens a struct file
- * to read from the file.
- */
-static int open_cur_inode_file(struct send_ctx *sctx)
-{
-	int ret = 0;
-	struct btrfs_key key;
-	struct path path;
-	struct inode *inode;
-	struct dentry *dentry;
-	struct file *filp;
-	int new = 0;
-
-	if (sctx->cur_inode_filp)
-		goto out;
-
-	key.objectid = sctx->cur_ino;
-	key.type = BTRFS_INODE_ITEM_KEY;
-	key.offset = 0;
-
-	inode = btrfs_iget(sctx->send_root->fs_info->sb, &key, sctx->send_root,
-			&new);
-	if (IS_ERR(inode)) {
-		ret = PTR_ERR(inode);
-		goto out;
-	}
-
-	dentry = d_obtain_alias(inode);
-	inode = NULL;
-	if (IS_ERR(dentry)) {
-		ret = PTR_ERR(dentry);
-		goto out;
-	}
-
-	path.mnt = sctx->mnt;
-	path.dentry = dentry;
-	filp = dentry_open(&path, O_RDONLY | O_LARGEFILE, current_cred());
-	dput(dentry);
-	dentry = NULL;
-	if (IS_ERR(filp)) {
-		ret = PTR_ERR(filp);
-		goto out;
-	}
-	sctx->cur_inode_filp = filp;
-
-out:
-	/*
-	 * no xxxput required here as every vfs op
-	 * does it by itself on failure
-	 */
-	return ret;
-}
-
-/*
- * Closes the struct file that was created in open_cur_inode_file
- */
-static int close_cur_inode_file(struct send_ctx *sctx)
-{
-	int ret = 0;
-
-	if (!sctx->cur_inode_filp)
-		goto out;
-
-	ret = filp_close(sctx->cur_inode_filp, NULL);
-	sctx->cur_inode_filp = NULL;
-
-out:
-	return ret;
-}
-
 /*
  * Sends a BTRFS_SEND_C_SUBVOL command/item to userspace
  */
@@ -3622,6 +3550,72 @@ out:
 	return ret;
 }
 
+static ssize_t fill_read_buf(struct send_ctx *sctx, u64 offset, u32 len)
+{
+	struct btrfs_root *root = sctx->send_root;
+	struct btrfs_fs_info *fs_info = root->fs_info;
+	struct inode *inode;
+	struct page *page;
+	char *addr;
+	struct btrfs_key key;
+	pgoff_t index = offset >> PAGE_CACHE_SHIFT;
+	pgoff_t last_index;
+	unsigned pg_offset = offset & ~PAGE_CACHE_MASK;
+	ssize_t ret = 0;
+
+	key.objectid = sctx->cur_ino;
+	key.type = BTRFS_INODE_ITEM_KEY;
+	key.offset = 0;
+
+	inode = btrfs_iget(fs_info->sb, &key, root, NULL);
+	if (IS_ERR(inode))
+		return PTR_ERR(inode);
+
+	if (offset + len > i_size_read(inode)) {
+		if (offset > i_size_read(inode))
+			len = 0;
+		else
+			len = offset - i_size_read(inode);
+	}
+	if (len == 0)
+		goto out;
+
+	last_index = (offset + len - 1) >> PAGE_CACHE_SHIFT;
+	while (index <= last_index) {
+		unsigned cur_len = min_t(unsigned, len,
+					 PAGE_CACHE_SIZE - pg_offset);
+		page = find_or_create_page(inode->i_mapping, index, GFP_NOFS);
+		if (!page) {
+			ret = -ENOMEM;
+			break;
+		}
+
+		if (!PageUptodate(page)) {
+			btrfs_readpage(NULL, page);
+			lock_page(page);
+			if (!PageUptodate(page)) {
+				unlock_page(page);
+				page_cache_release(page);
+				ret = -EIO;
+				break;
+			}
+		}
+
+		addr = kmap(page);
+		memcpy(sctx->read_buf + ret, addr + pg_offset, cur_len);
+		kunmap(page);
+		unlock_page(page);
+		page_cache_release(page);
+		index++;
+		pg_offset = 0;
+		len -= cur_len;
+		ret += cur_len;
+	}
+out:
+	iput(inode);
+	return ret;
+}
+
 /*
  * Read some bytes from the current inode/file and send a write command to
  * user space.
@@ -3630,35 +3624,20 @@ static int send_write(struct send_ctx *sctx, u64 offset, u32 len)
 {
 	int ret = 0;
 	struct fs_path *p;
-	loff_t pos = offset;
-	int num_read = 0;
-	mm_segment_t old_fs;
+	ssize_t num_read = 0;
 
 	p = fs_path_alloc();
 	if (!p)
 		return -ENOMEM;
 
-	/*
-	 * vfs normally only accepts user space buffers for security reasons.
-	 * we only read from the file and also only provide the read_buf buffer
-	 * to vfs. As this buffer does not come from a user space call, it's
-	 * ok to temporary allow kernel space buffers.
-	 */
-	old_fs = get_fs();
-	set_fs(KERNEL_DS);
-
 verbose_printk("btrfs: send_write offset=%llu, len=%d\n", offset, len);
 
-	ret = open_cur_inode_file(sctx);
-	if (ret < 0)
-		goto out;
-
-	ret = vfs_read(sctx->cur_inode_filp, sctx->read_buf, len, &pos);
-	if (ret < 0)
-		goto out;
-	num_read = ret;
-	if (!num_read)
+	num_read = fill_read_buf(sctx, offset, len);
+	if (num_read <= 0) {
+		if (num_read < 0)
+			ret = num_read;
 		goto out;
+	}
 
 	ret = begin_cmd(sctx, BTRFS_SEND_C_WRITE);
 	if (ret < 0)
@@ -3677,7 +3656,6 @@ verbose_printk("btrfs: send_write offset=%llu, len=%d\n", offset, len);
 tlv_put_failure:
 out:
 	fs_path_free(p);
-	set_fs(old_fs);
 	if (ret < 0)
 		return ret;
 	return num_read;
@@ -4222,10 +4200,6 @@ static int changed_inode(struct send_ctx *sctx,
 	u64 left_gen = 0;
 	u64 right_gen = 0;
 
-	ret = close_cur_inode_file(sctx);
-	if (ret < 0)
-		goto out;
-
 	sctx->cur_ino = key->objectid;
 	sctx->cur_inode_new_gen = 0;
 
@@ -4686,11 +4660,6 @@ static int send_subvol(struct send_ctx *sctx)
 	}
 
 out:
-	if (!ret)
-		ret = close_cur_inode_file(sctx);
-	else
-		close_cur_inode_file(sctx);
-
 	free_recorded_refs(sctx);
 	return ret;
 }
-- 
cgit 


From 0ef8b726075aa6931ddf1c16f5bae043eef184f9 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Fri, 25 Oct 2013 16:13:35 -0400
Subject: Btrfs: return an error from btrfs_wait_ordered_range

I noticed that if the free space cache has an error writing out it's data it
won't actually error out, it will just carry on.  This is because it doesn't
check the return value of btrfs_wait_ordered_range, which didn't actually return
anything.  So fix this in order to keep us from making free space cache look
valid when it really isnt.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/file.c             | 66 ++++++++++++++++++++++++++-------------------
 fs/btrfs/free-space-cache.c |  9 +++++--
 fs/btrfs/inode.c            |  9 +++++--
 fs/btrfs/ordered-data.c     | 26 ++++++++++++------
 fs/btrfs/ordered-data.h     |  2 +-
 fs/btrfs/relocation.c       |  7 ++++-
 6 files changed, 78 insertions(+), 41 deletions(-)

diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 14b41d569a3e..3a20a12513b2 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1280,6 +1280,7 @@ again:
 		}
 		wait_on_page_writeback(pages[i]);
 	}
+	faili = num_pages - 1;
 	err = 0;
 	if (start_pos < inode->i_size) {
 		struct btrfs_ordered_extent *ordered;
@@ -1298,8 +1299,10 @@ again:
 				unlock_page(pages[i]);
 				page_cache_release(pages[i]);
 			}
-			btrfs_wait_ordered_range(inode, start_pos,
-						 last_pos - start_pos);
+			err = btrfs_wait_ordered_range(inode, start_pos,
+						       last_pos - start_pos);
+			if (err)
+				goto fail;
 			goto again;
 		}
 		if (ordered)
@@ -1808,8 +1811,13 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
 	atomic_inc(&root->log_batch);
 	full_sync = test_bit(BTRFS_INODE_NEEDS_FULL_SYNC,
 			     &BTRFS_I(inode)->runtime_flags);
-	if (full_sync)
-		btrfs_wait_ordered_range(inode, start, end - start + 1);
+	if (full_sync) {
+		ret = btrfs_wait_ordered_range(inode, start, end - start + 1);
+		if (ret) {
+			mutex_unlock(&inode->i_mutex);
+			goto out;
+		}
+	}
 	atomic_inc(&root->log_batch);
 
 	/*
@@ -1875,27 +1883,20 @@ int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync)
 	mutex_unlock(&inode->i_mutex);
 
 	if (ret != BTRFS_NO_LOG_SYNC) {
-		if (ret > 0) {
-			/*
-			 * If we didn't already wait for ordered extents we need
-			 * to do that now.
-			 */
-			if (!full_sync)
-				btrfs_wait_ordered_range(inode, start,
-							 end - start + 1);
-			ret = btrfs_commit_transaction(trans, root);
-		} else {
+		if (!ret) {
 			ret = btrfs_sync_log(trans, root);
-			if (ret == 0) {
+			if (!ret) {
 				ret = btrfs_end_transaction(trans, root);
-			} else {
-				if (!full_sync)
-					btrfs_wait_ordered_range(inode, start,
-								 end -
-								 start + 1);
-				ret = btrfs_commit_transaction(trans, root);
+				goto out;
 			}
 		}
+		if (!full_sync) {
+			ret = btrfs_wait_ordered_range(inode, start,
+						       end - start + 1);
+			if (ret)
+				goto out;
+		}
+		ret = btrfs_commit_transaction(trans, root);
 	} else {
 		ret = btrfs_end_transaction(trans, root);
 	}
@@ -2066,7 +2067,9 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
 	bool same_page = ((offset >> PAGE_CACHE_SHIFT) ==
 			  ((offset + len - 1) >> PAGE_CACHE_SHIFT));
 
-	btrfs_wait_ordered_range(inode, offset, len);
+	ret = btrfs_wait_ordered_range(inode, offset, len);
+	if (ret)
+		return ret;
 
 	mutex_lock(&inode->i_mutex);
 	/*
@@ -2135,8 +2138,12 @@ static int btrfs_punch_hole(struct inode *inode, loff_t offset, loff_t len)
 			btrfs_put_ordered_extent(ordered);
 		unlock_extent_cached(&BTRFS_I(inode)->io_tree, lockstart,
 				     lockend, &cached_state, GFP_NOFS);
-		btrfs_wait_ordered_range(inode, lockstart,
-					 lockend - lockstart + 1);
+		ret = btrfs_wait_ordered_range(inode, lockstart,
+					       lockend - lockstart + 1);
+		if (ret) {
+			mutex_unlock(&inode->i_mutex);
+			return ret;
+		}
 	}
 
 	path = btrfs_alloc_path();
@@ -2307,7 +2314,10 @@ static long btrfs_fallocate(struct file *file, int mode,
 	 * wait for ordered IO before we have any locks.  We'll loop again
 	 * below with the locks held.
 	 */
-	btrfs_wait_ordered_range(inode, alloc_start, alloc_end - alloc_start);
+	ret = btrfs_wait_ordered_range(inode, alloc_start,
+				       alloc_end - alloc_start);
+	if (ret)
+		goto out;
 
 	locked_end = alloc_end - 1;
 	while (1) {
@@ -2331,8 +2341,10 @@ static long btrfs_fallocate(struct file *file, int mode,
 			 * we can't wait on the range with the transaction
 			 * running or with the extent lock held
 			 */
-			btrfs_wait_ordered_range(inode, alloc_start,
-						 alloc_end - alloc_start);
+			ret = btrfs_wait_ordered_range(inode, alloc_start,
+						       alloc_end - alloc_start);
+			if (ret)
+				goto out;
 		} else {
 			if (ordered)
 				btrfs_put_ordered_extent(ordered);
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 4772f3a8e7e5..d7c445c30a16 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -1008,8 +1008,13 @@ static int __btrfs_write_out_cache(struct btrfs_root *root, struct inode *inode,
 	if (ret)
 		goto out;
 
-
-	btrfs_wait_ordered_range(inode, 0, (u64)-1);
+	ret = btrfs_wait_ordered_range(inode, 0, (u64)-1);
+	if (ret) {
+		clear_extent_bit(&BTRFS_I(inode)->io_tree, 0, inode->i_size - 1,
+				 EXTENT_DIRTY | EXTENT_DELALLOC, 0, 0, NULL,
+				 GFP_NOFS);
+		goto out;
+	}
 
 	key.objectid = BTRFS_FREE_SPACE_OBJECTID;
 	key.offset = offset;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 14c6ab74cf8c..f1fbf903bf9b 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7236,7 +7236,9 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb,
 	 * outstanding dirty pages are on disk.
 	 */
 	count = iov_length(iov, nr_segs);
-	btrfs_wait_ordered_range(inode, offset, count);
+	ret = btrfs_wait_ordered_range(inode, offset, count);
+	if (ret)
+		return ret;
 
 	if (rw & WRITE) {
 		/*
@@ -7577,7 +7579,10 @@ static int btrfs_truncate(struct inode *inode)
 	u64 mask = root->sectorsize - 1;
 	u64 min_size = btrfs_calc_trunc_metadata_size(root, 1);
 
-	btrfs_wait_ordered_range(inode, inode->i_size & (~mask), (u64)-1);
+	ret = btrfs_wait_ordered_range(inode, inode->i_size & (~mask),
+				       (u64)-1);
+	if (ret)
+		return ret;
 
 	/*
 	 * Yes ladies and gentelment, this is indeed ugly.  The fact is we have
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 1a36a0c3ee27..bbb1a3864686 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -734,8 +734,9 @@ void btrfs_start_ordered_extent(struct inode *inode,
 /*
  * Used to wait on ordered extents across a large range of bytes.
  */
-void btrfs_wait_ordered_range(struct inode *inode, u64 start, u64 len)
+int btrfs_wait_ordered_range(struct inode *inode, u64 start, u64 len)
 {
+	int ret = 0;
 	u64 end;
 	u64 orig_end;
 	struct btrfs_ordered_extent *ordered;
@@ -751,8 +752,9 @@ void btrfs_wait_ordered_range(struct inode *inode, u64 start, u64 len)
 	/* start IO across the range first to instantiate any delalloc
 	 * extents
 	 */
-	filemap_fdatawrite_range(inode->i_mapping, start, orig_end);
-
+	ret = filemap_fdatawrite_range(inode->i_mapping, start, orig_end);
+	if (ret)
+		return ret;
 	/*
 	 * So with compression we will find and lock a dirty page and clear the
 	 * first one as dirty, setup an async extent, and immediately return
@@ -768,10 +770,15 @@ void btrfs_wait_ordered_range(struct inode *inode, u64 start, u64 len)
 	 * right and you are wrong.
 	 */
 	if (test_bit(BTRFS_INODE_HAS_ASYNC_EXTENT,
-		     &BTRFS_I(inode)->runtime_flags))
-		filemap_fdatawrite_range(inode->i_mapping, start, orig_end);
-
-	filemap_fdatawait_range(inode->i_mapping, start, orig_end);
+		     &BTRFS_I(inode)->runtime_flags)) {
+		ret = filemap_fdatawrite_range(inode->i_mapping, start,
+					       orig_end);
+		if (ret)
+			return ret;
+	}
+	ret = filemap_fdatawait_range(inode->i_mapping, start, orig_end);
+	if (ret)
+		return ret;
 
 	end = orig_end;
 	while (1) {
@@ -788,11 +795,14 @@ void btrfs_wait_ordered_range(struct inode *inode, u64 start, u64 len)
 		}
 		btrfs_start_ordered_extent(inode, ordered, 1);
 		end = ordered->file_offset;
+		if (test_bit(BTRFS_ORDERED_IOERR, &ordered->flags))
+			ret = -EIO;
 		btrfs_put_ordered_extent(ordered);
-		if (end == 0 || end == start)
+		if (ret || end == 0 || end == start)
 			break;
 		end--;
 	}
+	return ret;
 }
 
 /*
diff --git a/fs/btrfs/ordered-data.h b/fs/btrfs/ordered-data.h
index 0c0b35612d7a..3982db1c1b36 100644
--- a/fs/btrfs/ordered-data.h
+++ b/fs/btrfs/ordered-data.h
@@ -180,7 +180,7 @@ struct btrfs_ordered_extent *btrfs_lookup_ordered_extent(struct inode *inode,
 							 u64 file_offset);
 void btrfs_start_ordered_extent(struct inode *inode,
 				struct btrfs_ordered_extent *entry, int wait);
-void btrfs_wait_ordered_range(struct inode *inode, u64 start, u64 len);
+int btrfs_wait_ordered_range(struct inode *inode, u64 start, u64 len);
 struct btrfs_ordered_extent *
 btrfs_lookup_first_ordered_extent(struct inode * inode, u64 file_offset);
 struct btrfs_ordered_extent *btrfs_lookup_ordered_range(struct inode *inode,
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index a945374993f7..729c91e151a3 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -4257,7 +4257,12 @@ int btrfs_relocate_block_group(struct btrfs_root *extent_root, u64 group_start)
 			rc->extents_found);
 
 		if (rc->stage == MOVE_DATA_EXTENTS && rc->found_file_extent) {
-			btrfs_wait_ordered_range(rc->data_inode, 0, (u64)-1);
+			ret = btrfs_wait_ordered_range(rc->data_inode, 0,
+						       (u64)-1);
+			if (ret) {
+				err = ret;
+				goto out;
+			}
 			invalidate_mapping_pages(rc->data_inode->i_mapping,
 						 0, -1);
 			rc->stage = UPDATE_DATA_PTRS;
-- 
cgit 


From 02ecd2c278471a3a7fd255662df92861c6759ebf Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Fri, 25 Oct 2013 16:19:08 -0400
Subject: Btrfs: do not bug_on if we try to cow a free space cache inode

We can just return an error and we'll bail out properly.  We still want to catch
this case to make sure we don't have a bug somewhere, so just warn if this pops
up.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/inode.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index f1fbf903bf9b..a44ca6a4feff 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -843,7 +843,10 @@ static noinline int cow_file_range(struct inode *inode,
 	struct extent_map_tree *em_tree = &BTRFS_I(inode)->extent_tree;
 	int ret = 0;
 
-	BUG_ON(btrfs_is_free_space_inode(inode));
+	if (btrfs_is_free_space_inode(inode)) {
+		WARN_ON_ONCE(1);
+		return -EINVAL;
+	}
 
 	num_bytes = ALIGN(end - start + 1, blocksize);
 	num_bytes = max(blocksize,  num_bytes);
-- 
cgit 


From d788a34929a90f70b945c100cfe9efd4d49fb446 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Fri, 25 Oct 2013 16:55:08 -0400
Subject: Btrfs: don't abort transaction in run_delalloc_nocow

This is just the write path, the only reason we start a transaction is so we can
check cross references, we don't make any actual changes, so there is no reason
to abort the transaction if we fail.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/inode.c | 20 +++++---------------
 1 file changed, 5 insertions(+), 15 deletions(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index a44ca6a4feff..5916ad8681cd 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -1180,10 +1180,8 @@ static noinline int run_delalloc_nocow(struct inode *inode,
 	while (1) {
 		ret = btrfs_lookup_file_extent(trans, root, path, ino,
 					       cur_offset, 0);
-		if (ret < 0) {
-			btrfs_abort_transaction(trans, root, ret);
+		if (ret < 0)
 			goto error;
-		}
 		if (ret > 0 && path->slots[0] > 0 && check_prev) {
 			leaf = path->nodes[0];
 			btrfs_item_key_to_cpu(leaf, &found_key,
@@ -1197,10 +1195,8 @@ next_slot:
 		leaf = path->nodes[0];
 		if (path->slots[0] >= btrfs_header_nritems(leaf)) {
 			ret = btrfs_next_leaf(root, path);
-			if (ret < 0) {
-				btrfs_abort_transaction(trans, root, ret);
+			if (ret < 0)
 				goto error;
-			}
 			if (ret > 0)
 				break;
 			leaf = path->nodes[0];
@@ -1291,10 +1287,8 @@ out_check:
 			ret = cow_file_range(inode, locked_page,
 					     cow_start, found_key.offset - 1,
 					     page_started, nr_written, 1);
-			if (ret) {
-				btrfs_abort_transaction(trans, root, ret);
+			if (ret)
 				goto error;
-			}
 			cow_start = (u64)-1;
 		}
 
@@ -1341,10 +1335,8 @@ out_check:
 		    BTRFS_DATA_RELOC_TREE_OBJECTID) {
 			ret = btrfs_reloc_clone_csums(inode, cur_offset,
 						      num_bytes);
-			if (ret) {
-				btrfs_abort_transaction(trans, root, ret);
+			if (ret)
 				goto error;
-			}
 		}
 
 		extent_clear_unlock_delalloc(inode, cur_offset,
@@ -1366,10 +1358,8 @@ out_check:
 	if (cow_start != (u64)-1) {
 		ret = cow_file_range(inode, locked_page, cow_start, end,
 				     page_started, nr_written, 1);
-		if (ret) {
-			btrfs_abort_transaction(trans, root, ret);
+		if (ret)
 			goto error;
-		}
 	}
 
 error:
-- 
cgit 


From 93858769172c4e3678917810e9d5de360eb991cc Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Mon, 28 Oct 2013 09:13:25 -0400
Subject: Btrfs: take ordered root lock when removing ordered operations inode

A user reported a list corruption warning from btrfs_remove_ordered_extent, it
is because we aren't taking the ordered_root_lock when we remove the inode from
the ordered operations list.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/ordered-data.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index bbb1a3864686..8a5eff366596 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -537,7 +537,9 @@ void btrfs_remove_ordered_extent(struct inode *inode,
 	 */
 	if (RB_EMPTY_ROOT(&tree->tree) &&
 	    !mapping_tagged(inode->i_mapping, PAGECACHE_TAG_DIRTY)) {
+		spin_lock(&root->fs_info->ordered_root_lock);
 		list_del_init(&BTRFS_I(inode)->ordered_operations);
+		spin_unlock(&root->fs_info->ordered_root_lock);
 	}
 
 	if (!root->nr_ordered_extents) {
-- 
cgit 


From 9f23e289edaf1e99f60de3978c50a1c7424f3e92 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Mon, 28 Oct 2013 15:03:41 -0400
Subject: Btrfs: make sure the delalloc workers actually flush compressed
 writes

When using delalloc workers in a non-waiting way (like for enospc handling) we
can end up not actually waiting for the dirty pages to be started if we have
compression.  We need to add an extra filemap flush to make sure any async
extents that have started are actually moved along before returning.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/inode.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 5916ad8681cd..c84adde53023 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8163,18 +8163,24 @@ out_notrans:
 static void btrfs_run_delalloc_work(struct btrfs_work *work)
 {
 	struct btrfs_delalloc_work *delalloc_work;
+	struct inode *inode;
 
 	delalloc_work = container_of(work, struct btrfs_delalloc_work,
 				     work);
-	if (delalloc_work->wait)
-		btrfs_wait_ordered_range(delalloc_work->inode, 0, (u64)-1);
-	else
-		filemap_flush(delalloc_work->inode->i_mapping);
+	inode = delalloc_work->inode;
+	if (delalloc_work->wait) {
+		btrfs_wait_ordered_range(inode, 0, (u64)-1);
+	} else {
+		filemap_flush(inode->i_mapping);
+		if (test_bit(BTRFS_INODE_HAS_ASYNC_EXTENT,
+			     &BTRFS_I(inode)->runtime_flags))
+			filemap_flush(inode->i_mapping);
+	}
 
 	if (delalloc_work->delay_iput)
-		btrfs_add_delayed_iput(delalloc_work->inode);
+		btrfs_add_delayed_iput(inode);
 	else
-		iput(delalloc_work->inode);
+		iput(inode);
 	complete(&delalloc_work->completion);
 }
 
-- 
cgit 


From 9e6a0c52b74b2d63a6cdb09cec5eaf66038b218f Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Thu, 31 Oct 2013 10:07:19 -0400
Subject: Btrfs: stop committing the transaction so much during relocate

I noticed with my horrible snapshot excercisor that we were taking forever to
relocate the larger the file system got.  This appeared to be because we were
committing the transaction _constantly_.  There were a few places where we do
braindead things with metadata reservation, like start a transaction and then
try to refill the block rsv, which not only keeps us from committing a
transaction during the enospc stuff, but keeps us from doing some of the harder
flushing work which will make us more likely to need to commit the transaction.
We also were checking the block rsv and committing the transaction if the block
rsv was below a certain threshold, but we were doing this in a place where we
don't actually keep anything in the block rsv so this was always ending up false
so we always committed the transaction in this case.  I tested this to make sure
it didn't break anything, but it takes about 10 hours to get the box to this
state so I don't know how much of an impact it will really make.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/relocation.c | 33 +++++++++++++--------------------
 1 file changed, 13 insertions(+), 20 deletions(-)

diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 729c91e151a3..92eb4832ff86 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -2060,7 +2060,7 @@ static noinline_for_stack int merge_reloc_root(struct reloc_control *rc,
 	LIST_HEAD(inode_list);
 	struct btrfs_key key;
 	struct btrfs_key next_key;
-	struct btrfs_trans_handle *trans;
+	struct btrfs_trans_handle *trans = NULL;
 	struct btrfs_root *reloc_root;
 	struct btrfs_root_item *root_item;
 	struct btrfs_path *path;
@@ -2109,18 +2109,19 @@ static noinline_for_stack int merge_reloc_root(struct reloc_control *rc,
 	memset(&next_key, 0, sizeof(next_key));
 
 	while (1) {
-		trans = btrfs_start_transaction(root, 0);
-		BUG_ON(IS_ERR(trans));
-		trans->block_rsv = rc->block_rsv;
-
 		ret = btrfs_block_rsv_refill(root, rc->block_rsv, min_reserved,
 					     BTRFS_RESERVE_FLUSH_ALL);
 		if (ret) {
-			BUG_ON(ret != -EAGAIN);
-			ret = btrfs_commit_transaction(trans, root);
-			BUG_ON(ret);
-			continue;
+			err = ret;
+			goto out;
+		}
+		trans = btrfs_start_transaction(root, 0);
+		if (IS_ERR(trans)) {
+			err = PTR_ERR(trans);
+			trans = NULL;
+			goto out;
 		}
+		trans->block_rsv = rc->block_rsv;
 
 		replaced = 0;
 		max_level = level;
@@ -2166,6 +2167,7 @@ static noinline_for_stack int merge_reloc_root(struct reloc_control *rc,
 		root_item->drop_level = level;
 
 		btrfs_end_transaction_throttle(trans, root);
+		trans = NULL;
 
 		btrfs_btree_balance_dirty(root);
 
@@ -2194,7 +2196,8 @@ out:
 		btrfs_update_reloc_root(trans, root);
 	}
 
-	btrfs_end_transaction_throttle(trans, root);
+	if (trans)
+		btrfs_end_transaction_throttle(trans, root);
 
 	btrfs_btree_balance_dirty(root);
 
@@ -3994,16 +3997,6 @@ restart:
 			}
 		}
 
-		ret = btrfs_block_rsv_check(rc->extent_root, rc->block_rsv, 5);
-		if (ret < 0) {
-			if (ret != -ENOSPC) {
-				err = ret;
-				WARN_ON(1);
-				break;
-			}
-			rc->commit_transaction = 1;
-		}
-
 		if (rc->commit_transaction) {
 			rc->commit_transaction = 0;
 			ret = btrfs_commit_transaction(trans, rc->extent_root);
-- 
cgit 


From 9dced186f934648bb7796ad3301cfc2563e2ad6e Mon Sep 17 00:00:00 2001
From: Miao Xie <miaox@cn.fujitsu.com>
Date: Fri, 25 Oct 2013 17:33:36 +0800
Subject: Btrfs: fix the free space write out failure when there is no data
 space

After running space balance on a new fs, the fs check program outputed the
following warning message:
 free space inode generation (0) did not match free space cache generation (20)

Steps to reproduce:
 # mkfs.btrfs -f <dev>
 # mount <dev> <mnt>
 # btrfs balance start <mnt>
 # umount <mnt>
 # btrfs check <dev>

It was because there was no data space after the space balance, and the free
space write out task didn't try to allocate a new data chunk for the free space
inode when doing the reservation. So the data space reservation failed, and in
order to tell the free space loader that this free space inode could not be
trusted, the generation of the free space inode wasn't updated. Then the check
program found this problem and outputed the above message.

But in fact, it is safe that we try to allocate a new data chunk when we find
the data space is not enough. The patch fixes the above problem by this way.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/extent-tree.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 4595a65db729..3aa52701d04a 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -3621,10 +3621,9 @@ int btrfs_check_data_free_space(struct inode *inode, u64 bytes)
 	/* make sure bytes are sectorsize aligned */
 	bytes = ALIGN(bytes, root->sectorsize);
 
-	if (root == root->fs_info->tree_root ||
-	    BTRFS_I(inode)->location.objectid == BTRFS_FREE_INO_OBJECTID) {
-		alloc_chunk = 0;
+	if (btrfs_is_free_space_inode(inode)) {
 		committed = 1;
+		ASSERT(current->journal_info);
 	}
 
 	data_sinfo = fs_info->data_sinfo;
@@ -3652,6 +3651,16 @@ again:
 			spin_unlock(&data_sinfo->lock);
 alloc:
 			alloc_target = btrfs_get_alloc_profile(root, 1);
+			/*
+			 * It is ugly that we don't call nolock join
+			 * transaction for the free space inode case here.
+			 * But it is safe because we only do the data space
+			 * reservation for the free space cache in the
+			 * transaction context, the common join transaction
+			 * just increase the counter of the current transaction
+			 * handler, doesn't try to acquire the trans_lock of
+			 * the fs.
+			 */
 			trans = btrfs_join_transaction(root);
 			if (IS_ERR(trans))
 				return PTR_ERR(trans);
-- 
cgit 


From 7fdf4b608dda5eea114cb23623b52e34dd5972f5 Mon Sep 17 00:00:00 2001
From: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Date: Fri, 25 Oct 2013 18:52:08 +0800
Subject: Btrfs: use 'u64' rather than 'int' to get extent's generation

We define a 'int' to get extent's generation by mistake,fix it.

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/relocation.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 92eb4832ff86..a5f6a8061b21 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -3263,7 +3263,7 @@ static int add_tree_block(struct reloc_control *rc,
 	struct rb_node *rb_node;
 	u32 item_size;
 	int level = -1;
-	int generation;
+	u64 generation;
 
 	eb =  path->nodes[0];
 	item_size = btrfs_item_size_nr(eb, path->slots[0]);
-- 
cgit 


From 9b011adfe14977fcda977234609d43ca52463a3d Mon Sep 17 00:00:00 2001
From: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Date: Fri, 25 Oct 2013 19:12:02 +0800
Subject: Btrfs: remove scrub_super_lock holding in btrfs_sync_log()

Originally, we introduced scrub_super_lock to synchronize
tree log code with scrubbing super.

However we can replace scrub_super_lock with device_list_mutex,
because writing super will hold this mutex, this will reduce an extra
lock holding when writing supers in sync log code.

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/ctree.h    |  3 ---
 fs/btrfs/disk-io.c  |  1 -
 fs/btrfs/scrub.c    | 18 +++++-------------
 fs/btrfs/tree-log.c |  2 --
 fs/btrfs/volumes.h  |  4 +++-
 5 files changed, 8 insertions(+), 20 deletions(-)

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 9f5e1cfb0209..34279665fd69 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -1586,7 +1586,6 @@ struct btrfs_fs_info {
 	atomic_t scrubs_paused;
 	atomic_t scrub_cancel_req;
 	wait_queue_head_t scrub_pause_wait;
-	struct rw_semaphore scrub_super_lock;
 	int scrub_workers_refcnt;
 	struct btrfs_workers scrub_workers;
 	struct btrfs_workers scrub_wr_completion_workers;
@@ -3950,9 +3949,7 @@ int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start,
 		    u64 end, struct btrfs_scrub_progress *progress,
 		    int readonly, int is_dev_replace);
 void btrfs_scrub_pause(struct btrfs_root *root);
-void btrfs_scrub_pause_super(struct btrfs_root *root);
 void btrfs_scrub_continue(struct btrfs_root *root);
-void btrfs_scrub_continue_super(struct btrfs_root *root);
 int btrfs_scrub_cancel(struct btrfs_fs_info *info);
 int btrfs_scrub_cancel_dev(struct btrfs_fs_info *info,
 			   struct btrfs_device *dev);
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 62c4aba221bb..a3ad3a27944d 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2250,7 +2250,6 @@ int open_ctree(struct super_block *sb,
 	atomic_set(&fs_info->scrubs_paused, 0);
 	atomic_set(&fs_info->scrub_cancel_req, 0);
 	init_waitqueue_head(&fs_info->scrub_pause_wait);
-	init_rwsem(&fs_info->scrub_super_lock);
 	fs_info->scrub_workers_refcnt = 0;
 #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
 	fs_info->check_integrity_print_mask = 0;
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index f21e2df89bc2..12009b4279ad 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -2932,13 +2932,15 @@ int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start,
 
 	atomic_inc(&fs_info->scrubs_running);
 	mutex_unlock(&fs_info->scrub_lock);
-	mutex_unlock(&fs_info->fs_devices->device_list_mutex);
 
 	if (!is_dev_replace) {
-		down_read(&fs_info->scrub_super_lock);
+		/*
+		 * by holding device list mutex, we can
+		 * kick off writing super in log tree sync.
+		 */
 		ret = scrub_supers(sctx, dev);
-		up_read(&fs_info->scrub_super_lock);
 	}
+	mutex_unlock(&fs_info->fs_devices->device_list_mutex);
 
 	if (!ret)
 		ret = scrub_enumerate_chunks(sctx, dev, start, end,
@@ -2988,16 +2990,6 @@ void btrfs_scrub_continue(struct btrfs_root *root)
 	wake_up(&fs_info->scrub_pause_wait);
 }
 
-void btrfs_scrub_pause_super(struct btrfs_root *root)
-{
-	down_write(&root->fs_info->scrub_super_lock);
-}
-
-void btrfs_scrub_continue_super(struct btrfs_root *root)
-{
-	up_write(&root->fs_info->scrub_super_lock);
-}
-
 int btrfs_scrub_cancel(struct btrfs_fs_info *fs_info)
 {
 	mutex_lock(&fs_info->scrub_lock);
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index f98002ed32b1..257cbae8c948 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -2586,9 +2586,7 @@ int btrfs_sync_log(struct btrfs_trans_handle *trans,
 	 * the running transaction open, so a full commit can't hop
 	 * in and cause problems either.
 	 */
-	btrfs_scrub_pause_super(root);
 	ret = write_ctree_super(trans, root->fs_info->tree_root, 1);
-	btrfs_scrub_continue_super(root);
 	if (ret) {
 		btrfs_abort_transaction(trans, root, ret);
 		goto out_wake_log_root;
diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index b72f540c8b29..49e0ff01143f 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -132,7 +132,9 @@ struct btrfs_fs_devices {
 
 	/* all of the devices in the FS, protected by a mutex
 	 * so we can safely walk it to write out the supers without
-	 * worrying about add/remove by the multi-device code
+	 * worrying about add/remove by the multi-device code.
+	 * Scrubbing super can kick off supers writing by holding
+	 * this mutex lock.
 	 */
 	struct mutex device_list_mutex;
 	struct list_head devices;
-- 
cgit 


From e46f5388cdde0f402f2dded6f1cad614536c6429 Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Mon, 28 Oct 2013 16:28:30 +0000
Subject: Btrfs: fix verification of dir_item

We were ignoring the name component of the dir_item. Both the
name and data must fit within BTRFS_MAX_XATTR_SIZE(root).

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/dir-item.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/dir-item.c b/fs/btrfs/dir-item.c
index 1c529db1697f..c031ea3fd70f 100644
--- a/fs/btrfs/dir-item.c
+++ b/fs/btrfs/dir-item.c
@@ -474,8 +474,10 @@ int verify_dir_item(struct btrfs_root *root,
 	}
 
 	/* BTRFS_MAX_XATTR_SIZE is the same for all dir items */
-	if (btrfs_dir_data_len(leaf, dir_item) > BTRFS_MAX_XATTR_SIZE(root)) {
-		printk(KERN_CRIT "btrfs: invalid dir item data len: %u\n",
+	if ((btrfs_dir_data_len(leaf, dir_item) +
+	     btrfs_dir_name_len(leaf, dir_item)) > BTRFS_MAX_XATTR_SIZE(root)) {
+		printk(KERN_CRIT "btrfs: invalid dir item name + data len: %u + %u\n",
+		       (unsigned)btrfs_dir_name_len(leaf, dir_item),
 		       (unsigned)btrfs_dir_data_len(leaf, dir_item));
 		return 1;
 	}
-- 
cgit 


From 488111aa0e17102d42e0328299fd782dc6a4a051 Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Mon, 28 Oct 2013 16:30:29 +0000
Subject: Btrfs: fix csum search offset/length calculation in log tree

We were setting the csums search offset and length to the right values if
the extent is compressed, but later on right before doing the csums lookup
we were overriding these two parameters regardless of compression being
set or not for the extent.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/tree-log.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 257cbae8c948..18891c009641 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -3421,11 +3421,6 @@ static int log_one_extent(struct btrfs_trans_handle *trans,
 	if (skip_csum)
 		return 0;
 
-	if (em->compress_type) {
-		csum_offset = 0;
-		csum_len = block_len;
-	}
-
 	/*
 	 * First check and see if our csums are on our outstanding ordered
 	 * extents.
@@ -3509,8 +3504,13 @@ unlocked:
 	if (!mod_len || ret)
 		return ret;
 
-	csum_offset = mod_start - em->start;
-	csum_len = mod_len;
+	if (em->compress_type) {
+		csum_offset = 0;
+		csum_len = block_len;
+	} else {
+		csum_offset = mod_start - em->start;
+		csum_len = mod_len;
+	}
 
 	/* block start is already adjusted for the file extent offset. */
 	ret = btrfs_lookup_csums_range(log->fs_info->csum_root,
-- 
cgit 


From 269d040ff2f340e1ed517dab8b66b2f133c83a77 Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Mon, 28 Oct 2013 17:39:21 +0000
Subject: Btrfs: log recovery, don't unlink inode always on error

If we get any error while doing a dir index/item lookup in the
log tree, we were always unlinking the corresponding inode in
the subvolume. It makes sense to unlink only if the lookup failed
to find the dir index/item, which corresponds to NULL or -ENOENT,
and not when other errors happen (like a transient -ENOMEM or -EIO).

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/tree-log.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 18891c009641..7927a5fa755c 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -1832,7 +1832,7 @@ again:
 						     dir_key->offset,
 						     name, name_len, 0);
 		}
-		if (IS_ERR_OR_NULL(log_di)) {
+		if (!log_di || (IS_ERR(log_di) && PTR_ERR(log_di) == -ENOENT)) {
 			btrfs_dir_item_key_to_cpu(eb, di, &location);
 			btrfs_release_path(path);
 			btrfs_release_path(log_path);
@@ -1869,6 +1869,9 @@ again:
 				goto again;
 			ret = 0;
 			goto out;
+		} else if (IS_ERR(log_di)) {
+			kfree(name);
+			return PTR_ERR(log_di);
 		}
 		btrfs_release_path(log_path);
 		kfree(name);
-- 
cgit 


From 6f519564d7d978c00351d9ab6abac3deeac31621 Mon Sep 17 00:00:00 2001
From: Liu Bo <bo.li.liu@oracle.com>
Date: Tue, 29 Oct 2013 10:45:05 +0800
Subject: Btrfs: do not run snapshot-aware defragment on error

If something wrong happens in write endio, running snapshot-aware defragment
can end up with undefined results, maybe a crash, so we should avoid it.

In order to share similar code, this also adds a helper to free the struct for
snapshot-aware defrag.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/inode.c | 47 ++++++++++++++++++++++++++++-------------------
 1 file changed, 28 insertions(+), 19 deletions(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index c84adde53023..17800221978f 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -2365,10 +2365,23 @@ out_unlock:
 	return ret;
 }
 
+static void free_sa_defrag_extent(struct new_sa_defrag_extent *new)
+{
+	struct old_sa_defrag_extent *old, *tmp;
+
+	if (!new)
+		return;
+
+	list_for_each_entry_safe(old, tmp, &new->head, list) {
+		list_del(&old->list);
+		kfree(old);
+	}
+	kfree(new);
+}
+
 static void relink_file_extents(struct new_sa_defrag_extent *new)
 {
 	struct btrfs_path *path;
-	struct old_sa_defrag_extent *old, *tmp;
 	struct sa_defrag_extent_backref *backref;
 	struct sa_defrag_extent_backref *prev = NULL;
 	struct inode *inode;
@@ -2411,16 +2424,11 @@ static void relink_file_extents(struct new_sa_defrag_extent *new)
 	kfree(prev);
 
 	btrfs_free_path(path);
-
-	list_for_each_entry_safe(old, tmp, &new->head, list) {
-		list_del(&old->list);
-		kfree(old);
-	}
 out:
+	free_sa_defrag_extent(new);
+
 	atomic_dec(&root->fs_info->defrag_running);
 	wake_up(&root->fs_info->transaction_wait);
-
-	kfree(new);
 }
 
 static struct new_sa_defrag_extent *
@@ -2430,7 +2438,7 @@ record_old_file_extents(struct inode *inode,
 	struct btrfs_root *root = BTRFS_I(inode)->root;
 	struct btrfs_path *path;
 	struct btrfs_key key;
-	struct old_sa_defrag_extent *old, *tmp;
+	struct old_sa_defrag_extent *old;
 	struct new_sa_defrag_extent *new;
 	int ret;
 
@@ -2478,7 +2486,7 @@ record_old_file_extents(struct inode *inode,
 		if (slot >= btrfs_header_nritems(l)) {
 			ret = btrfs_next_leaf(root, path);
 			if (ret < 0)
-				goto out_free_list;
+				goto out_free_path;
 			else if (ret > 0)
 				break;
 			continue;
@@ -2507,7 +2515,7 @@ record_old_file_extents(struct inode *inode,
 
 		old = kmalloc(sizeof(*old), GFP_NOFS);
 		if (!old)
-			goto out_free_list;
+			goto out_free_path;
 
 		offset = max(new->file_pos, key.offset);
 		end = min(new->file_pos + new->len, key.offset + num_bytes);
@@ -2529,15 +2537,10 @@ next:
 
 	return new;
 
-out_free_list:
-	list_for_each_entry_safe(old, tmp, &new->head, list) {
-		list_del(&old->list);
-		kfree(old);
-	}
 out_free_path:
 	btrfs_free_path(path);
 out_kfree:
-	kfree(new);
+	free_sa_defrag_extent(new);
 	return NULL;
 }
 
@@ -2708,8 +2711,14 @@ out:
 	btrfs_remove_ordered_extent(inode, ordered_extent);
 
 	/* for snapshot-aware defrag */
-	if (new)
-		relink_file_extents(new);
+	if (new) {
+		if (ret) {
+			free_sa_defrag_extent(new);
+			atomic_dec(&root->fs_info->defrag_running);
+		} else {
+			relink_file_extents(new);
+		}
+	}
 
 	/* once for us */
 	btrfs_put_ordered_extent(ordered_extent);
-- 
cgit 


From 48ec47364b6d493f0a9cdc116977bf3f34e5c3ec Mon Sep 17 00:00:00 2001
From: Liu Bo <bo.li.liu@oracle.com>
Date: Wed, 30 Oct 2013 13:25:24 +0800
Subject: Btrfs: fix a crash when running balance and defrag concurrently

Running balance and defrag concurrently can end up with a crash:

kernel BUG at fs/btrfs/relocation.c:4528!
RIP: 0010:[<ffffffffa01ac33b>]  [<ffffffffa01ac33b>] btrfs_reloc_cow_block+ 0x1eb/0x230 [btrfs]
Call Trace:
  [<ffffffffa01398c1>] ? update_ref_for_cow+0x241/0x380 [btrfs]
  [<ffffffffa0180bad>] ? copy_extent_buffer+0xad/0x110 [btrfs]
  [<ffffffffa0139da1>] __btrfs_cow_block+0x3a1/0x520 [btrfs]
  [<ffffffffa013a0b6>] btrfs_cow_block+0x116/0x1b0 [btrfs]
  [<ffffffffa013ddad>] btrfs_search_slot+0x43d/0x970 [btrfs]
  [<ffffffffa0153c57>] btrfs_lookup_file_extent+0x37/0x40 [btrfs]
  [<ffffffffa0172a5e>] __btrfs_drop_extents+0x11e/0xae0 [btrfs]
  [<ffffffffa013b3fd>] ? generic_bin_search.constprop.39+0x8d/0x1a0 [btrfs]
  [<ffffffff8117d14a>] ? kmem_cache_alloc+0x1da/0x200
  [<ffffffffa0138e7a>] ? btrfs_alloc_path+0x1a/0x20 [btrfs]
  [<ffffffffa0173ef0>] btrfs_drop_extents+0x60/0x90 [btrfs]
  [<ffffffffa016b24d>] relink_extent_backref+0x2ed/0x780 [btrfs]
  [<ffffffffa0162fe0>] ? btrfs_submit_bio_hook+0x1e0/0x1e0 [btrfs]
  [<ffffffffa01b8ed7>] ? iterate_inodes_from_logical+0x87/0xa0 [btrfs]
  [<ffffffffa016b909>] btrfs_finish_ordered_io+0x229/0xac0 [btrfs]
  [<ffffffffa016c3b5>] finish_ordered_fn+0x15/0x20 [btrfs]
  [<ffffffffa018cbe5>] worker_loop+0x125/0x4e0 [btrfs]
  [<ffffffffa018cac0>] ? btrfs_queue_worker+0x300/0x300 [btrfs]
  [<ffffffff81075ea0>] kthread+0xc0/0xd0
  [<ffffffff81075de0>] ? insert_kthread_work+0x40/0x40
  [<ffffffff8164796c>] ret_from_fork+0x7c/0xb0
  [<ffffffff81075de0>] ? insert_kthread_work+0x40/0x40
----------------------------------------------------------------------

It turns out to be that balance operation will bump root's @last_snapshot,
which enables snapshot-aware defrag path, and backref walking stuff will
find data reloc tree as refs' parent, and hit the BUG_ON() during COW.

As data reloc tree's data is just for relocation purpose, and will be deleted right
after relocation is done, it's unnecessary to walk those refs belonged to data reloc
tree, it'd be better to skip them.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/backref.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 721936a5b2ca..30d24cfb45d4 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -185,6 +185,9 @@ static int __add_prelim_ref(struct list_head *head, u64 root_id,
 {
 	struct __prelim_ref *ref;
 
+	if (root_id == BTRFS_DATA_RELOC_TREE_OBJECTID)
+		return 0;
+
 	ref = kmem_cache_alloc(btrfs_prelim_ref_cache, gfp_mask);
 	if (!ref)
 		return -ENOMEM;
-- 
cgit 


From 2e9f5954978cd5b0c26e6eeb9fd4ccbdce0f5ecc Mon Sep 17 00:00:00 2001
From: Rashika <rashika.kheria@gmail.com>
Date: Thu, 31 Oct 2013 02:45:20 +0530
Subject: btrfs: Add helper function for free_root_pointers()

The function free_root_pointers() in disk-io.h contains redundant code.
Therefore, this patch adds a helper function free_root_extent_buffers()
to free_root_pointers() to eliminate redundancy.

Reviewed-by: Zach Brown <zab@redhat.com>
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/disk-io.c | 60 +++++++++++++++++-------------------------------------
 1 file changed, 19 insertions(+), 41 deletions(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index a3ad3a27944d..22443fac9408 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -2033,50 +2033,28 @@ static void btrfs_stop_all_workers(struct btrfs_fs_info *fs_info)
 	btrfs_stop_workers(&fs_info->qgroup_rescan_workers);
 }
 
+static void free_root_extent_buffers(struct btrfs_root *root)
+{
+	if (root) {
+		free_extent_buffer(root->node);
+		free_extent_buffer(root->commit_root);
+		root->node = NULL;
+		root->commit_root = NULL;
+	}
+}
+
 /* helper to cleanup tree roots */
 static void free_root_pointers(struct btrfs_fs_info *info, int chunk_root)
 {
-	free_extent_buffer(info->tree_root->node);
-	free_extent_buffer(info->tree_root->commit_root);
-	info->tree_root->node = NULL;
-	info->tree_root->commit_root = NULL;
-
-	if (info->dev_root) {
-		free_extent_buffer(info->dev_root->node);
-		free_extent_buffer(info->dev_root->commit_root);
-		info->dev_root->node = NULL;
-		info->dev_root->commit_root = NULL;
-	}
-	if (info->extent_root) {
-		free_extent_buffer(info->extent_root->node);
-		free_extent_buffer(info->extent_root->commit_root);
-		info->extent_root->node = NULL;
-		info->extent_root->commit_root = NULL;
-	}
-	if (info->csum_root) {
-		free_extent_buffer(info->csum_root->node);
-		free_extent_buffer(info->csum_root->commit_root);
-		info->csum_root->node = NULL;
-		info->csum_root->commit_root = NULL;
-	}
-	if (info->quota_root) {
-		free_extent_buffer(info->quota_root->node);
-		free_extent_buffer(info->quota_root->commit_root);
-		info->quota_root->node = NULL;
-		info->quota_root->commit_root = NULL;
-	}
-	if (info->uuid_root) {
-		free_extent_buffer(info->uuid_root->node);
-		free_extent_buffer(info->uuid_root->commit_root);
-		info->uuid_root->node = NULL;
-		info->uuid_root->commit_root = NULL;
-	}
-	if (chunk_root) {
-		free_extent_buffer(info->chunk_root->node);
-		free_extent_buffer(info->chunk_root->commit_root);
-		info->chunk_root->node = NULL;
-		info->chunk_root->commit_root = NULL;
-	}
+	free_root_extent_buffers(info->tree_root);
+
+	free_root_extent_buffers(info->dev_root);
+	free_root_extent_buffers(info->extent_root);
+	free_root_extent_buffers(info->csum_root);
+	free_root_extent_buffers(info->quota_root);
+	free_root_extent_buffers(info->uuid_root);
+	if (chunk_root)
+		free_root_extent_buffers(info->chunk_root);
 }
 
 static void del_fs_roots(struct btrfs_fs_info *fs_info)
-- 
cgit 


From 95e94d14b42c1992493ce72492351d4601b274fe Mon Sep 17 00:00:00 2001
From: Rashika <rashika.kheria@gmail.com>
Date: Thu, 31 Oct 2013 03:12:42 +0530
Subject: btrfs: Replace multiple atomic_inc() with atomic_add()

This patch replaces multiple atomic_inc() with atomic_add() in
delayed-inode.c to reduce source code and have few instructions
for compilation.

Reviewed-by: Zach Brown <zab@redhat.com>
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/delayed-inode.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index df1a496bc8d4..af2ecca8a109 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -108,8 +108,8 @@ static struct btrfs_delayed_node *btrfs_get_delayed_node(struct inode *inode)
 			return node;
 		}
 		btrfs_inode->delayed_node = node;
-		atomic_inc(&node->refs);	/* can be accessed */
-		atomic_inc(&node->refs);	/* cached in the inode */
+		/* can be accessed and cached in the inode */
+		atomic_add(2, &node->refs);
 		spin_unlock(&root->inode_lock);
 		return node;
 	}
@@ -138,8 +138,8 @@ again:
 		return ERR_PTR(-ENOMEM);
 	btrfs_init_delayed_node(node, root, ino);
 
-	atomic_inc(&node->refs);	/* cached in the btrfs inode */
-	atomic_inc(&node->refs);	/* can be accessed */
+	/* cached in the btrfs inode and can be accessed */
+	atomic_add(2, &node->refs);
 
 	ret = radix_tree_preload(GFP_NOFS & ~__GFP_HIGHMEM);
 	if (ret) {
-- 
cgit 


From 3c45bfc1528ccb8b94c06d5740854bb75f8a92fb Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Thu, 31 Oct 2013 09:57:33 +0530
Subject: btrfs: Pack struct btrfs_device

Pack the structure btrfs_device in volumes.h to eliminate holes detected
by pahole, thus reducing binary memory footprint.

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Reviewed-by: Zach Brown <zab@redhat.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/volumes.h | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h
index 49e0ff01143f..8b3cd142b373 100644
--- a/fs/btrfs/volumes.h
+++ b/fs/btrfs/volumes.h
@@ -43,9 +43,8 @@ struct btrfs_device {
 	/* WRITE_SYNC bios */
 	struct btrfs_pending_bios pending_sync_bios;
 
-	int running_pending;
 	u64 generation;
-
+	int running_pending;
 	int writeable;
 	int in_fs_metadata;
 	int missing;
@@ -53,11 +52,11 @@ struct btrfs_device {
 	int is_tgtdev_for_dev_replace;
 
 	spinlock_t io_lock;
+	/* the mode sent to blkdev_get */
+	fmode_t mode;
 
 	struct block_device *bdev;
 
-	/* the mode sent to blkdev_get */
-	fmode_t mode;
 
 	struct rcu_string *name;
 
@@ -78,16 +77,21 @@ struct btrfs_device {
 
 	/* optimal io width for this device */
 	u32 io_width;
+	/* type and info about this device */
+	u64 type;
 
 	/* minimal io size for this device */
 	u32 sector_size;
 
-	/* type and info about this device */
-	u64 type;
 
 	/* physical drive uuid (or lvm uuid) */
 	u8 uuid[BTRFS_UUID_SIZE];
 
+	/* for sending down flush barriers */
+	int nobarriers;
+	struct bio *flush_bio;
+	struct completion flush_wait;
+
 	/* per-device scrub information */
 	struct scrub_ctx *scrub_device;
 
@@ -103,10 +107,6 @@ struct btrfs_device {
 	struct radix_tree_root reada_zones;
 	struct radix_tree_root reada_extents;
 
-	/* for sending down flush barriers */
-	struct bio *flush_bio;
-	struct completion flush_wait;
-	int nobarriers;
 
 	/* disk I/O failure stats. For detailed description refer to
 	 * enum btrfs_dev_stat_values in ioctl.h */
-- 
cgit 


From b19e684393752ec129a36924e6c270daf79676d6 Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Thu, 31 Oct 2013 10:29:38 +0530
Subject: btrfs: Remove redundant local zero structure

Remove redundant local zero structure, replacing it by the kernel's
global ZERO_PAGE.

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Reviewed-by: Zach Brown <zab@redhat.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/ioctl.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 9ea05506cb84..78d20482b72a 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -368,9 +368,8 @@ static noinline int btrfs_ioctl_fitrim(struct file *file, void __user *arg)
 
 int btrfs_is_empty_uuid(u8 *uuid)
 {
-	static char empty_uuid[BTRFS_UUID_SIZE] = {0};
-
-	return !memcmp(uuid, empty_uuid, BTRFS_UUID_SIZE);
+	BUILD_BUG_ON(BTRFS_UUID_SIZE > PAGE_SIZE);
+	return !memcmp(uuid, empty_zero_page, BTRFS_UUID_SIZE);
 }
 
 static noinline int create_subvol(struct inode *dir,
-- 
cgit 


From fae7f21cece9a4c181a8d8131870c7247e153f65 Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Thu, 31 Oct 2013 10:30:08 +0530
Subject: btrfs: Use WARN_ON()'s return value in place of WARN_ON(1)

Use WARN_ON()'s return value in place of WARN_ON(1) for cleaner source
code that outputs a more descriptive warnings. Also fix the styling
warning of redundant braces that came up as a result of this fix.

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Reviewed-by: Zach Brown <zab@redhat.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/backref.c         |  3 +--
 fs/btrfs/check-integrity.c |  7 ++-----
 fs/btrfs/ctree.c           |  6 ++----
 fs/btrfs/delayed-inode.c   |  3 +--
 fs/btrfs/disk-io.c         |  8 +-------
 fs/btrfs/extent-tree.c     | 11 ++++-------
 fs/btrfs/extent_io.c       |  7 ++-----
 fs/btrfs/file-item.c       |  4 +---
 fs/btrfs/inode-map.c       |  4 +---
 fs/btrfs/inode.c           | 10 +++-------
 fs/btrfs/relocation.c      | 13 ++++---------
 fs/btrfs/send.c            |  4 +---
 fs/btrfs/tree-log.c        |  7 ++-----
 fs/btrfs/volumes.c         | 11 +++--------
 14 files changed, 28 insertions(+), 70 deletions(-)

diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 30d24cfb45d4..3775947429b2 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -326,8 +326,7 @@ static int __resolve_indirect_ref(struct btrfs_fs_info *fs_info,
 
 	eb = path->nodes[level];
 	while (!eb) {
-		if (!level) {
-			WARN_ON(1);
+		if (WARN_ON(!level)) {
 			ret = 1;
 			goto out;
 		}
diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index 656b07637e39..e0aab4456974 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -2464,10 +2464,8 @@ static int btrfsic_process_written_superblock(
 		}
 	}
 
-	if (-1 == btrfsic_check_all_ref_blocks(state, superblock, 0)) {
-		WARN_ON(1);
+	if (WARN_ON(-1 == btrfsic_check_all_ref_blocks(state, superblock, 0)))
 		btrfsic_dump_tree(state);
-	}
 
 	return 0;
 }
@@ -2907,7 +2905,7 @@ static void btrfsic_cmp_log_and_dev_bytenr(struct btrfsic_state *state,
 		btrfsic_release_block_ctx(&block_ctx);
 	}
 
-	if (!match) {
+	if (WARN_ON(!match)) {
 		printk(KERN_INFO "btrfs: attempt to write M-block which contains logical bytenr that doesn't map to dev+physical bytenr of submit_bio,"
 		       " buffer->log_bytenr=%llu, submit_bio(bdev=%s,"
 		       " phys_bytenr=%llu)!\n",
@@ -2924,7 +2922,6 @@ static void btrfsic_cmp_log_and_dev_bytenr(struct btrfsic_state *state,
 			       bytenr, block_ctx.dev->name,
 			       block_ctx.dev_bytenr, mirror_num);
 		}
-		WARN_ON(1);
 	}
 }
 
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index a749121203df..03c606cefd50 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -1285,11 +1285,10 @@ get_old_root(struct btrfs_root *root, u64 time_seq)
 		free_extent_buffer(eb_root);
 		blocksize = btrfs_level_size(root, old_root->level);
 		old = read_tree_block(root, logical, blocksize, 0);
-		if (!old || !extent_buffer_uptodate(old)) {
+		if (WARN_ON(!old || !extent_buffer_uptodate(old))) {
 			free_extent_buffer(old);
 			pr_warn("btrfs: failed to read tree block %llu from get_old_root\n",
 				logical);
-			WARN_ON(1);
 		} else {
 			eb = btrfs_clone_extent_buffer(old);
 			free_extent_buffer(old);
@@ -3643,8 +3642,7 @@ static noinline int __push_leaf_left(struct btrfs_trans_handle *trans,
 		ret = 1;
 		goto out;
 	}
-	if (!empty && push_items == btrfs_header_nritems(right))
-		WARN_ON(1);
+	WARN_ON(!empty && push_items == btrfs_header_nritems(right));
 
 	/* push data from right to left */
 	copy_extent_buffer(left, right,
diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index af2ecca8a109..2bb8e1a988a1 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -649,14 +649,13 @@ static int btrfs_delayed_inode_reserve_metadata(
 			goto out;
 
 		ret = btrfs_block_rsv_migrate(src_rsv, dst_rsv, num_bytes);
-		if (!ret)
+		if (!WARN_ON(ret))
 			goto out;
 
 		/*
 		 * Ok this is a problem, let's just steal from the global rsv
 		 * since this really shouldn't happen that often.
 		 */
-		WARN_ON(1);
 		ret = btrfs_block_rsv_migrate(&root->fs_info->global_block_rsv,
 					      dst_rsv, num_bytes);
 		goto out;
diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 22443fac9408..77fa2d99252f 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -475,14 +475,8 @@ static int csum_dirty_buffer(struct btrfs_root *root, struct page *page)
 	if (page != eb->pages[0])
 		return 0;
 	found_start = btrfs_header_bytenr(eb);
-	if (found_start != start) {
-		WARN_ON(1);
+	if (WARN_ON(found_start != start || !PageUptodate(page)))
 		return 0;
-	}
-	if (!PageUptodate(page)) {
-		WARN_ON(1);
-		return 0;
-	}
 	csum_tree_block(root, eb, 0);
 	return 0;
 }
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 3aa52701d04a..2d58461bd035 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -1550,9 +1550,8 @@ again:
 	if (ret && !insert) {
 		err = -ENOENT;
 		goto out;
-	} else if (ret) {
+	} else if (WARN_ON(ret)) {
 		err = -EIO;
-		WARN_ON(1);
 		goto out;
 	}
 
@@ -5752,9 +5751,8 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans,
 			}
 			extent_slot = path->slots[0];
 		}
-	} else if (ret == -ENOENT) {
+	} else if (WARN_ON(ret == -ENOENT)) {
 		btrfs_print_leaf(extent_root, path->nodes[0]);
-		WARN_ON(1);
 		btrfs_err(info,
 			"unable to find ref byte nr %llu parent %llu root %llu  owner %llu offset %llu",
 			bytenr, parent, root_objectid, owner_objectid,
@@ -8317,10 +8315,9 @@ int btrfs_free_block_groups(struct btrfs_fs_info *info)
 					struct btrfs_space_info,
 					list);
 		if (btrfs_test_opt(info->tree_root, ENOSPC_DEBUG)) {
-			if (space_info->bytes_pinned > 0 ||
+			if (WARN_ON(space_info->bytes_pinned > 0 ||
 			    space_info->bytes_reserved > 0 ||
-			    space_info->bytes_may_use > 0) {
-				WARN_ON(1);
+			    space_info->bytes_may_use > 0)) {
 				dump_space_info(space_info, 0, 0);
 			}
 		}
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index a93bab452183..fb782ed62426 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -1739,10 +1739,8 @@ u64 count_range_bits(struct extent_io_tree *tree,
 	u64 last = 0;
 	int found = 0;
 
-	if (search_end <= cur_start) {
-		WARN_ON(1);
+	if (WARN_ON(search_end <= cur_start))
 		return 0;
-	}
 
 	spin_lock(&tree->lock);
 	if (cur_start == 0 && bits == EXTENT_DIRTY) {
@@ -3568,9 +3566,8 @@ retry:
 			 * but no sense in crashing the users box for something
 			 * we can survive anyway.
 			 */
-			if (!eb) {
+			if (WARN_ON(!eb)) {
 				spin_unlock(&mapping->private_lock);
-				WARN_ON(1);
 				continue;
 			}
 
diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index ae8a5139e0ee..6f3848860283 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -849,10 +849,8 @@ insert:
 	path->leave_spinning = 0;
 	if (ret < 0)
 		goto fail_unlock;
-	if (ret != 0) {
-		WARN_ON(1);
+	if (WARN_ON(ret != 0))
 		goto fail_unlock;
-	}
 	leaf = path->nodes[0];
 csum:
 	item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_csum_item);
diff --git a/fs/btrfs/inode-map.c b/fs/btrfs/inode-map.c
index ec08004a6a20..ab485e57b6fe 100644
--- a/fs/btrfs/inode-map.c
+++ b/fs/btrfs/inode-map.c
@@ -78,10 +78,8 @@ again:
 			    btrfs_transaction_in_commit(fs_info)) {
 				leaf = path->nodes[0];
 
-				if (btrfs_header_nritems(leaf) == 0) {
-					WARN_ON(1);
+				if (WARN_ON(btrfs_header_nritems(leaf) == 0))
 					break;
-				}
 
 				/*
 				 * Save the key so we can advances forward
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 17800221978f..ddecc9c332f4 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -2039,10 +2039,8 @@ static noinline int record_one_backref(u64 inum, u64 offset, u64 root_id,
 		key.offset = offset;
 
 	ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
-	if (ret < 0) {
-		WARN_ON(1);
+	if (WARN_ON(ret < 0))
 		return ret;
-	}
 	ret = 0;
 
 	while (1) {
@@ -3182,8 +3180,7 @@ int btrfs_orphan_cleanup(struct btrfs_root *root)
 
 		/* if we have links, this was a truncate, lets do that */
 		if (inode->i_nlink) {
-			if (!S_ISREG(inode->i_mode)) {
-				WARN_ON(1);
+			if (WARN_ON(!S_ISREG(inode->i_mode))) {
 				iput(inode);
 				continue;
 			}
@@ -8023,8 +8020,7 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 		if (ret == -EEXIST) {
 			/* we shouldn't get
 			 * eexist without a new_inode */
-			if (!new_inode) {
-				WARN_ON(1);
+			if (WARN_ON(!new_inode)) {
 				return ret;
 			}
 		} else {
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index a5f6a8061b21..70eca79bae52 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -1777,8 +1777,7 @@ again:
 			new_ptr_gen = 0;
 		}
 
-		if (new_bytenr > 0 && new_bytenr == old_bytenr) {
-			WARN_ON(1);
+		if (WARN_ON(new_bytenr > 0 && new_bytenr == old_bytenr)) {
 			ret = level;
 			break;
 		}
@@ -3545,10 +3544,8 @@ static int find_data_references(struct reloc_control *rc,
 				err = ret;
 				goto out;
 			}
-			if (ret > 0) {
-				WARN_ON(1);
+			if (WARN_ON(ret > 0))
 				goto out;
-			}
 
 			leaf = path->nodes[0];
 			nritems = btrfs_header_nritems(leaf);
@@ -3568,11 +3565,9 @@ static int find_data_references(struct reloc_control *rc,
 		}
 
 		btrfs_item_key_to_cpu(leaf, &key, path->slots[0]);
-		if (key.objectid != ref_objectid ||
-		    key.type != BTRFS_EXTENT_DATA_KEY) {
-			WARN_ON(1);
+		if (WARN_ON(key.objectid != ref_objectid ||
+		    key.type != BTRFS_EXTENT_DATA_KEY))
 			break;
-		}
 
 		fi = btrfs_item_ptr(leaf, path->slots[0],
 				    struct btrfs_file_extent_item);
diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index e26a3a62fd3f..ec2f02435287 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -564,10 +564,8 @@ static int begin_cmd(struct send_ctx *sctx, int cmd)
 {
 	struct btrfs_cmd_header *hdr;
 
-	if (!sctx->send_buf) {
-		WARN_ON(1);
+	if (WARN_ON(!sctx->send_buf))
 		return -EINVAL;
-	}
 
 	BUG_ON(sctx->send_size);
 
diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 7927a5fa755c..744553c83fe2 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -2130,8 +2130,7 @@ static noinline int walk_down_log_tree(struct btrfs_trans_handle *trans,
 		WARN_ON(*level >= BTRFS_MAX_LEVEL);
 		cur = path->nodes[*level];
 
-		if (btrfs_header_level(cur) != *level)
-			WARN_ON(1);
+		WARN_ON(btrfs_header_level(cur) != *level);
 
 		if (path->slots[*level] >=
 		    btrfs_header_nritems(cur))
@@ -2951,10 +2950,8 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,
 
 	/* find the first key from this transaction again */
 	ret = btrfs_search_slot(NULL, root, &min_key, path, 0, 0);
-	if (ret != 0) {
-		WARN_ON(1);
+	if (WARN_ON(ret != 0))
 		goto done;
-	}
 
 	/*
 	 * we have a block from this transaction, log every item in it
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 716abee16a5b..3c16da51348f 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -2552,8 +2552,7 @@ again:
 		failed = 0;
 		retried = true;
 		goto again;
-	} else if (failed && retried) {
-		WARN_ON(1);
+	} else if (WARN_ON(failed && retried)) {
 		ret = -ENOSPC;
 	}
 error:
@@ -5402,10 +5401,8 @@ static int bio_size_ok(struct block_device *bdev, struct bio *bio,
 		.bi_rw = bio->bi_rw,
 	};
 
-	if (bio->bi_vcnt == 0) {
-		WARN_ON(1);
+	if (WARN_ON(bio->bi_vcnt == 0))
 		return 1;
-	}
 
 	prev = &bio->bi_io_vec[bio->bi_vcnt - 1];
 	if (bio_sectors(bio) > max_sectors)
@@ -5638,10 +5635,8 @@ struct btrfs_device *btrfs_alloc_device(struct btrfs_fs_info *fs_info,
 	struct btrfs_device *dev;
 	u64 tmp;
 
-	if (!devid && !fs_info) {
-		WARN_ON(1);
+	if (WARN_ON(!devid && !fs_info))
 		return ERR_PTR(-EINVAL);
-	}
 
 	dev = __alloc_device();
 	if (IS_ERR(dev))
-- 
cgit 


From e248e04e7798d234ddbeab6ee6acdec2476fe1a8 Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Thu, 31 Oct 2013 10:31:13 +0530
Subject: btrfs: Enclose macros with complex values within parenthesis

Enclose macros with complex values within parenthesis in accordance to
checkpatch.pl.

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Reviewed-by: Zach Brown <zab@redhat.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/extent_map.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/btrfs/extent_map.h b/fs/btrfs/extent_map.h
index 61adc44b7805..93fba716d7f8 100644
--- a/fs/btrfs/extent_map.h
+++ b/fs/btrfs/extent_map.h
@@ -3,10 +3,10 @@
 
 #include <linux/rbtree.h>
 
-#define EXTENT_MAP_LAST_BYTE (u64)-4
-#define EXTENT_MAP_HOLE (u64)-3
-#define EXTENT_MAP_INLINE (u64)-2
-#define EXTENT_MAP_DELALLOC (u64)-1
+#define EXTENT_MAP_LAST_BYTE ((u64)-4)
+#define EXTENT_MAP_HOLE ((u64)-3)
+#define EXTENT_MAP_INLINE ((u64)-2)
+#define EXTENT_MAP_DELALLOC ((u64)-1)
 
 /* bits for the flags field */
 #define EXTENT_FLAG_PINNED 0 /* this entry not yet on disk, don't free it */
-- 
cgit 


From d9b0d9ba04cf99abff9125b688c03e154598a644 Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Thu, 31 Oct 2013 10:32:18 +0530
Subject: btrfs: Replace kmalloc with kmalloc_array

Replace kmalloc(size * nr, ) with kmalloc_array(nr, size), thus making
it easier to check is that the calculation doesn't wrap or return a smaller allocation

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Reviewed-by: Zach Brown <zab@redhat.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/delayed-inode.c | 4 ++--
 fs/btrfs/ioctl.c         | 2 +-
 fs/btrfs/super.c         | 2 +-
 fs/btrfs/volumes.c       | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/btrfs/delayed-inode.c b/fs/btrfs/delayed-inode.c
index 2bb8e1a988a1..8d292fbae659 100644
--- a/fs/btrfs/delayed-inode.c
+++ b/fs/btrfs/delayed-inode.c
@@ -770,13 +770,13 @@ static int btrfs_batch_insert_items(struct btrfs_root *root,
 	 */
 	btrfs_set_path_blocking(path);
 
-	keys = kmalloc(sizeof(struct btrfs_key) * nitems, GFP_NOFS);
+	keys = kmalloc_array(nitems, sizeof(struct btrfs_key), GFP_NOFS);
 	if (!keys) {
 		ret = -ENOMEM;
 		goto out;
 	}
 
-	data_size = kmalloc(sizeof(u32) * nitems, GFP_NOFS);
+	data_size = kmalloc_array(nitems, sizeof(u32), GFP_NOFS);
 	if (!data_size) {
 		ret = -ENOMEM;
 		goto error;
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 78d20482b72a..3712ef86ca82 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -1198,7 +1198,7 @@ int btrfs_defrag_file(struct inode *inode, struct file *file,
 		ra = &file->f_ra;
 	}
 
-	pages = kmalloc(sizeof(struct page *) * max_cluster,
+	pages = kmalloc_array(max_cluster, sizeof(struct page *),
 			GFP_NOFS);
 	if (!pages) {
 		ret = -ENOMEM;
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index c9079db7441e..1de6d4d67431 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1470,7 +1470,7 @@ static int btrfs_calc_avail_data_space(struct btrfs_root *root, u64 *free_bytes)
 	nr_devices = fs_info->fs_devices->open_devices;
 	BUG_ON(!nr_devices);
 
-	devices_info = kmalloc(sizeof(*devices_info) * nr_devices,
+	devices_info = kmalloc_array(nr_devices, sizeof(*devices_info),
 			       GFP_NOFS);
 	if (!devices_info)
 		return -ENOMEM;
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 3c16da51348f..0db637097862 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -4901,7 +4901,7 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
 			num_stripes = map->num_stripes;
 			max_errors = nr_parity_stripes(map);
 
-			raid_map = kmalloc(sizeof(u64) * num_stripes,
+			raid_map = kmalloc_array(num_stripes, sizeof(u64),
 					   GFP_NOFS);
 			if (!raid_map) {
 				ret = -ENOMEM;
-- 
cgit 


From 678712545b62715a6c867471320ff5f60a521f3a Mon Sep 17 00:00:00 2001
From: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Date: Thu, 31 Oct 2013 10:33:04 +0530
Subject: btrfs: Fix checkpatch.pl warning of spacing issues

Fix spacing issues detected via checkpatch.pl in accordance with the
kernel style guidelines.

Signed-off-by: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/async-thread.c     |  2 +-
 fs/btrfs/compression.c      |  2 +-
 fs/btrfs/ctree.c            |  2 +-
 fs/btrfs/extent-tree.c      |  6 +++---
 fs/btrfs/extent_io.c        |  2 +-
 fs/btrfs/file.c             |  2 +-
 fs/btrfs/free-space-cache.c |  2 +-
 fs/btrfs/inode.c            |  6 +++---
 fs/btrfs/ioctl.c            | 14 +++++++-------
 9 files changed, 19 insertions(+), 19 deletions(-)

diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c
index 08cc08f037a6..8aec751fa464 100644
--- a/fs/btrfs/async-thread.c
+++ b/fs/btrfs/async-thread.c
@@ -262,7 +262,7 @@ static struct btrfs_work *get_next_work(struct btrfs_worker_thread *worker,
 	struct btrfs_work *work = NULL;
 	struct list_head *cur = NULL;
 
-	if(!list_empty(prio_head))
+	if (!list_empty(prio_head))
 		cur = prio_head->next;
 
 	smp_mb();
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c
index df019c7f58b2..1499b27b4186 100644
--- a/fs/btrfs/compression.c
+++ b/fs/btrfs/compression.c
@@ -359,7 +359,7 @@ int btrfs_submit_compressed_write(struct inode *inode, u64 start,
 	bdev = BTRFS_I(inode)->root->fs_info->fs_devices->latest_bdev;
 
 	bio = compressed_bio_alloc(bdev, first_byte, GFP_NOFS);
-	if(!bio) {
+	if (!bio) {
 		kfree(cb);
 		return -ENOMEM;
 	}
diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c
index 03c606cefd50..316136bd6dd7 100644
--- a/fs/btrfs/ctree.c
+++ b/fs/btrfs/ctree.c
@@ -4018,7 +4018,7 @@ again:
 				    data_size > BTRFS_LEAF_DATA_SIZE(root)) {
 					if (data_size && !tried_avoid_double)
 						goto push_for_double;
-					split = 2 ;
+					split = 2;
 				}
 			}
 		}
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 2d58461bd035..fb5c76795eda 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -5017,7 +5017,7 @@ int btrfs_delalloc_reserve_metadata(struct inode *inode, u64 num_bytes)
 		mutex_unlock(&BTRFS_I(inode)->delalloc_mutex);
 
 	if (to_reserve)
-		trace_btrfs_space_reservation(root->fs_info,"delalloc",
+		trace_btrfs_space_reservation(root->fs_info, "delalloc",
 					      btrfs_ino(inode), to_reserve, 1);
 	block_rsv_add_bytes(block_rsv, to_reserve, 1);
 
@@ -8022,7 +8022,7 @@ u64 btrfs_account_ro_block_groups_free_space(struct btrfs_space_info *sinfo)
 
 	spin_lock(&sinfo->lock);
 
-	for(i = 0; i < BTRFS_NR_RAID_TYPES; i++)
+	for (i = 0; i < BTRFS_NR_RAID_TYPES; i++)
 		if (!list_empty(&sinfo->block_groups[i]))
 			free_bytes += __btrfs_get_ro_block_group_free_space(
 						&sinfo->block_groups[i]);
@@ -8310,7 +8310,7 @@ int btrfs_free_block_groups(struct btrfs_fs_info *info)
 
 	release_global_block_rsv(info);
 
-	while(!list_empty(&info->space_info)) {
+	while (!list_empty(&info->space_info)) {
 		space_info = list_entry(info->space_info.next,
 					struct btrfs_space_info,
 					list);
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index fb782ed62426..856bc2b2192c 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -4034,7 +4034,7 @@ static struct extent_map *get_extent_skip_holes(struct inode *inode,
 	if (offset >= last)
 		return NULL;
 
-	while(1) {
+	while (1) {
 		len = last - offset;
 		if (len == 0)
 			break;
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 3a20a12513b2..82d0342763c5 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -369,7 +369,7 @@ int btrfs_run_defrag_inodes(struct btrfs_fs_info *fs_info)
 	u64 root_objectid = 0;
 
 	atomic_inc(&fs_info->defrag_running);
-	while(1) {
+	while (1) {
 		/* Pause the auto defragger. */
 		if (test_bit(BTRFS_FS_STATE_REMOUNTING,
 			     &fs_info->fs_state))
diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index d7c445c30a16..057be95b1e1e 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -2280,7 +2280,7 @@ u64 btrfs_alloc_from_cluster(struct btrfs_block_group_cache *block_group,
 		goto out;
 
 	entry = rb_entry(node, struct btrfs_free_space, offset_index);
-	while(1) {
+	while (1) {
 		if (entry->bytes < bytes && entry->bytes > *max_extent_size)
 			*max_extent_size = entry->bytes;
 
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index ddecc9c332f4..57fa19d69e90 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6262,7 +6262,7 @@ struct extent_map *btrfs_get_extent_fiemap(struct inode *inode, struct page *pag
 	/* adjust the range_start to make sure it doesn't
 	 * go backwards from the start they passed in
 	 */
-	range_start = max(start,range_start);
+	range_start = max(start, range_start);
 	found = found_end - range_start;
 
 	if (found > 0) {
@@ -7066,7 +7066,7 @@ static int btrfs_submit_direct_hook(int rw, struct btrfs_dio_private *dip,
 			}
 		} else {
 			submit_len += bvec->bv_len;
-			nr_pages ++;
+			nr_pages++;
 			bvec++;
 		}
 	}
@@ -8367,7 +8367,7 @@ static int btrfs_symlink(struct inode *dir, struct dentry *dentry,
 	int err;
 	int drop_inode = 0;
 	u64 objectid;
-	u64 index = 0 ;
+	u64 index = 0;
 	int name_len;
 	int datasize;
 	unsigned long ptr;
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 3712ef86ca82..6523108d2984 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -686,7 +686,7 @@ static inline int btrfs_check_sticky(struct inode *dir, struct inode *inode)
  *     nfs_async_unlink().
  */
 
-static int btrfs_may_delete(struct inode *dir,struct dentry *victim,int isdir)
+static int btrfs_may_delete(struct inode *dir, struct dentry *victim, int isdir)
 {
 	int error;
 
@@ -856,7 +856,7 @@ static int find_new_extents(struct btrfs_root *root,
 
 	path->keep_locks = 1;
 
-	while(1) {
+	while (1) {
 		ret = btrfs_search_forward(root, &min_key, path, newer_than);
 		if (ret != 0)
 			goto none;
@@ -1918,7 +1918,7 @@ static noinline int search_ioctl(struct inode *inode,
 
 	path->keep_locks = 1;
 
-	while(1) {
+	while (1) {
 		ret = btrfs_search_forward(root, &key, path, sk->min_transid);
 		if (ret != 0) {
 			if (ret > 0)
@@ -2004,7 +2004,7 @@ static noinline int btrfs_search_path_in_tree(struct btrfs_fs_info *info,
 	key.type = BTRFS_INODE_REF_KEY;
 	key.offset = (u64)-1;
 
-	while(1) {
+	while (1) {
 		ret = btrfs_search_slot(NULL, root, &key, path, 0, 0);
 		if (ret < 0)
 			goto out;
@@ -2033,7 +2033,7 @@ static noinline int btrfs_search_path_in_tree(struct btrfs_fs_info *info,
 		}
 
 		*(ptr + len) = '/';
-		read_extent_buffer(l, ptr,(unsigned long)(iref + 1), len);
+		read_extent_buffer(l, ptr, (unsigned long)(iref + 1), len);
 
 		if (key.offset == BTRFS_FIRST_FREE_OBJECTID)
 			break;
@@ -2044,7 +2044,7 @@ static noinline int btrfs_search_path_in_tree(struct btrfs_fs_info *info,
 		dirid = key.objectid;
 	}
 	memmove(name, ptr, total_len);
-	name[total_len]='\0';
+	name[total_len] = '\0';
 	ret = 0;
 out:
 	btrfs_free_path(path);
@@ -2130,7 +2130,7 @@ static noinline int btrfs_ioctl_snap_destroy(struct file *file,
 
 	inode = dentry->d_inode;
 	dest = BTRFS_I(inode)->root;
-	if (!capable(CAP_SYS_ADMIN)){
+	if (!capable(CAP_SYS_ADMIN)) {
 		/*
 		 * Regular user.  Only allow this with a special mount
 		 * option, when the user has write+exec access to the
-- 
cgit 


From f570e757b54ca6eceabc9b19a6342f14e836c196 Mon Sep 17 00:00:00 2001
From: Rashika <rashika.kheria@gmail.com>
Date: Thu, 31 Oct 2013 16:50:42 +0530
Subject: btrfs: Remove useless variable in write_ctree_super()

The function write_ctree_super() in disk-io.c uses variable ret to return
the result of function write_all_supers(). Since, this variable serves
no purpose, hence the patch removes it and returns the call of the
called function.

Reviewed-by: Zach Brown <zab@redhat.com>
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/disk-io.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 77fa2d99252f..4c4ed0bb3da1 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3440,10 +3440,7 @@ static int write_all_supers(struct btrfs_root *root, int max_mirrors)
 int write_ctree_super(struct btrfs_trans_handle *trans,
 		      struct btrfs_root *root, int max_mirrors)
 {
-	int ret;
-
-	ret = write_all_supers(root, max_mirrors);
-	return ret;
+	return write_all_supers(root, max_mirrors);
 }
 
 /* Drop a fs root from the radix tree and free it. */
-- 
cgit 


From 007d31f755294b9db69c3d18e90d6edae9f1604d Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Thu, 31 Oct 2013 16:49:02 -0400
Subject: Btrfs: check file extent type before anything else

I hit this problem with my no holes patch and it made me realize what the
problem was for bz 60834.  If the first item in the leaf is an inline extent and
we try to read anything starting from disk_bytenr onward we will read off the
end of the leaf.  So we need to check to see what it's type is, and if it's not
REG we can just break out.  This should fix this problem.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/send.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
index ec2f02435287..6837fe87f3a6 100644
--- a/fs/btrfs/send.c
+++ b/fs/btrfs/send.c
@@ -3902,16 +3902,16 @@ static int is_extent_unchanged(struct send_ctx *sctx,
 	while (key.offset < ekey->offset + left_len) {
 		ei = btrfs_item_ptr(eb, slot, struct btrfs_file_extent_item);
 		right_type = btrfs_file_extent_type(eb, ei);
-		right_disknr = btrfs_file_extent_disk_bytenr(eb, ei);
-		right_len = btrfs_file_extent_num_bytes(eb, ei);
-		right_offset = btrfs_file_extent_offset(eb, ei);
-		right_gen = btrfs_file_extent_generation(eb, ei);
-
 		if (right_type != BTRFS_FILE_EXTENT_REG) {
 			ret = 0;
 			goto out;
 		}
 
+		right_disknr = btrfs_file_extent_disk_bytenr(eb, ei);
+		right_len = btrfs_file_extent_num_bytes(eb, ei);
+		right_offset = btrfs_file_extent_offset(eb, ei);
+		right_gen = btrfs_file_extent_generation(eb, ei);
+
 		/*
 		 * Are we at extent 8? If yes, we know the extent is changed.
 		 * This may only happen on the first iteration.
-- 
cgit 


From 3b7a016f44d51ba8425c244f4c607f93fa213fd2 Mon Sep 17 00:00:00 2001
From: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Date: Sat, 12 Oct 2013 02:11:12 +0800
Subject: Btrfs: avoid unnecessary scrub workers allocation

We only allocate scrub workers if we pass all the necessary
checks, for example, there are no operation in progress.

Besides, move mutex lock protection outside of scrub_workers_get()
/scrub_workers_put().

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/scrub.c | 23 ++++++++++-------------
 1 file changed, 10 insertions(+), 13 deletions(-)

diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 12009b4279ad..2544805544f0 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -2784,7 +2784,6 @@ static noinline_for_stack int scrub_workers_get(struct btrfs_fs_info *fs_info,
 {
 	int ret = 0;
 
-	mutex_lock(&fs_info->scrub_lock);
 	if (fs_info->scrub_workers_refcnt == 0) {
 		if (is_dev_replace)
 			btrfs_init_workers(&fs_info->scrub_workers, "scrub", 1,
@@ -2814,21 +2813,17 @@ static noinline_for_stack int scrub_workers_get(struct btrfs_fs_info *fs_info,
 	}
 	++fs_info->scrub_workers_refcnt;
 out:
-	mutex_unlock(&fs_info->scrub_lock);
-
 	return ret;
 }
 
 static noinline_for_stack void scrub_workers_put(struct btrfs_fs_info *fs_info)
 {
-	mutex_lock(&fs_info->scrub_lock);
 	if (--fs_info->scrub_workers_refcnt == 0) {
 		btrfs_stop_workers(&fs_info->scrub_workers);
 		btrfs_stop_workers(&fs_info->scrub_wr_completion_workers);
 		btrfs_stop_workers(&fs_info->scrub_nocow_workers);
 	}
 	WARN_ON(fs_info->scrub_workers_refcnt < 0);
-	mutex_unlock(&fs_info->scrub_lock);
 }
 
 int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start,
@@ -2889,23 +2884,18 @@ int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start,
 		return -EINVAL;
 	}
 
-	ret = scrub_workers_get(fs_info, is_dev_replace);
-	if (ret)
-		return ret;
 
 	mutex_lock(&fs_info->fs_devices->device_list_mutex);
 	dev = btrfs_find_device(fs_info, devid, NULL, NULL);
 	if (!dev || (dev->missing && !is_dev_replace)) {
 		mutex_unlock(&fs_info->fs_devices->device_list_mutex);
-		scrub_workers_put(fs_info);
 		return -ENODEV;
 	}
-	mutex_lock(&fs_info->scrub_lock);
 
+	mutex_lock(&fs_info->scrub_lock);
 	if (!dev->in_fs_metadata || dev->is_tgtdev_for_dev_replace) {
 		mutex_unlock(&fs_info->scrub_lock);
 		mutex_unlock(&fs_info->fs_devices->device_list_mutex);
-		scrub_workers_put(fs_info);
 		return -EIO;
 	}
 
@@ -2916,10 +2906,17 @@ int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start,
 		btrfs_dev_replace_unlock(&fs_info->dev_replace);
 		mutex_unlock(&fs_info->scrub_lock);
 		mutex_unlock(&fs_info->fs_devices->device_list_mutex);
-		scrub_workers_put(fs_info);
 		return -EINPROGRESS;
 	}
 	btrfs_dev_replace_unlock(&fs_info->dev_replace);
+
+	ret = scrub_workers_get(fs_info, is_dev_replace);
+	if (ret) {
+		mutex_unlock(&fs_info->scrub_lock);
+		mutex_unlock(&fs_info->fs_devices->device_list_mutex);
+		return ret;
+	}
+
 	sctx = scrub_setup_ctx(dev, is_dev_replace);
 	if (IS_ERR(sctx)) {
 		mutex_unlock(&fs_info->scrub_lock);
@@ -2957,10 +2954,10 @@ int btrfs_scrub_dev(struct btrfs_fs_info *fs_info, u64 devid, u64 start,
 
 	mutex_lock(&fs_info->scrub_lock);
 	dev->scrub_device = NULL;
+	scrub_workers_put(fs_info);
 	mutex_unlock(&fs_info->scrub_lock);
 
 	scrub_free_ctx(sctx);
-	scrub_workers_put(fs_info);
 
 	return ret;
 }
-- 
cgit 


From d3ee29e39653455b7d799f77872d7df8c4060613 Mon Sep 17 00:00:00 2001
From: Miao Xie <miaox@cn.fujitsu.com>
Date: Mon, 4 Nov 2013 23:13:20 +0800
Subject: Btrfs: remove unnecessary initialization and memory barrior in
 shrink_delalloc()

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/extent-tree.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index fb5c76795eda..5e0e6bcf67b9 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4034,15 +4034,14 @@ static void shrink_delalloc(struct btrfs_root *root, u64 to_reclaim, u64 orig,
 	u64 delalloc_bytes;
 	u64 max_reclaim;
 	long time_left;
-	unsigned long nr_pages = (2 * 1024 * 1024) >> PAGE_CACHE_SHIFT;
-	int loops = 0;
+	unsigned long nr_pages;
+	int loops;
 	enum btrfs_reserve_flush_enum flush;
 
 	trans = (struct btrfs_trans_handle *)current->journal_info;
 	block_rsv = &root->fs_info->delalloc_block_rsv;
 	space_info = block_rsv->space_info;
 
-	smp_mb();
 	delalloc_bytes = percpu_counter_sum_positive(
 						&root->fs_info->delalloc_bytes);
 	if (delalloc_bytes == 0) {
@@ -4052,6 +4051,7 @@ static void shrink_delalloc(struct btrfs_root *root, u64 to_reclaim, u64 orig,
 		return;
 	}
 
+	loops = 0;
 	while (delalloc_bytes && loops < 3) {
 		max_reclaim = min(delalloc_bytes, to_reclaim);
 		nr_pages = max_reclaim >> PAGE_CACHE_SHIFT;
@@ -4082,7 +4082,6 @@ static void shrink_delalloc(struct btrfs_root *root, u64 to_reclaim, u64 orig,
 			if (time_left)
 				break;
 		}
-		smp_mb();
 		delalloc_bytes = percpu_counter_sum_positive(
 						&root->fs_info->delalloc_bytes);
 	}
-- 
cgit 


From 38c135af8e22baf2ef3ebf9b213e398997a90946 Mon Sep 17 00:00:00 2001
From: Miao Xie <miaox@cn.fujitsu.com>
Date: Mon, 4 Nov 2013 23:13:21 +0800
Subject: Btrfs: wait for the ordered extent only when we want

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/extent-tree.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 5e0e6bcf67b9..2564cbfdf417 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4047,7 +4047,8 @@ static void shrink_delalloc(struct btrfs_root *root, u64 to_reclaim, u64 orig,
 	if (delalloc_bytes == 0) {
 		if (trans)
 			return;
-		btrfs_wait_all_ordered_extents(root->fs_info);
+		if (wait_ordered)
+			btrfs_wait_all_ordered_extents(root->fs_info);
 		return;
 	}
 
-- 
cgit 


From 18cd8ea6df32e72548a4b055cba54d1a898c81e5 Mon Sep 17 00:00:00 2001
From: Miao Xie <miaox@cn.fujitsu.com>
Date: Mon, 4 Nov 2013 23:13:22 +0800
Subject: Btrfs: pick up the code for the item number calculation in
 flush_space()

This patch picked up the code that was used to calculate the number of
the items for which we need reserve space, and we will use it in the next
patch.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/extent-tree.c | 25 ++++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 2564cbfdf417..9183f9cbc121 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4022,6 +4022,18 @@ static void btrfs_writeback_inodes_sb_nr(struct btrfs_root *root,
 	}
 }
 
+static inline int calc_reclaim_items_nr(struct btrfs_root *root, u64 to_reclaim)
+{
+	u64 bytes;
+	int nr;
+
+	bytes = btrfs_calc_trans_metadata_size(root, 1);
+	nr = (int)div64_u64(to_reclaim, bytes);
+	if (!nr)
+		nr = 1;
+	return nr;
+}
+
 /*
  * shrink metadata reservation for delalloc
  */
@@ -4167,16 +4179,11 @@ static int flush_space(struct btrfs_root *root,
 	switch (state) {
 	case FLUSH_DELAYED_ITEMS_NR:
 	case FLUSH_DELAYED_ITEMS:
-		if (state == FLUSH_DELAYED_ITEMS_NR) {
-			u64 bytes = btrfs_calc_trans_metadata_size(root, 1);
-
-			nr = (int)div64_u64(num_bytes, bytes);
-			if (!nr)
-				nr = 1;
-			nr *= 2;
-		} else {
+		if (state == FLUSH_DELAYED_ITEMS_NR)
+			nr = calc_reclaim_items_nr(root, num_bytes) * 2;
+		else
 			nr = -1;
-		}
+
 		trans = btrfs_join_transaction(root);
 		if (IS_ERR(trans)) {
 			ret = PTR_ERR(trans);
-- 
cgit 


From c61a16a701a12659e2933c5965afe8d45284146a Mon Sep 17 00:00:00 2001
From: Miao Xie <miaox@cn.fujitsu.com>
Date: Mon, 4 Nov 2013 23:13:23 +0800
Subject: Btrfs: fix the confusion between delalloc bytes and metadata bytes

In shrink_delalloc(), what we need reclaim is the metadata space, so
flushing pages by to_reclaim is not reasonable, it is very likely that
the pages we flush are not enough. And then we had to invoke the flush
function for several times, at the worst, we need call flush_space for
several times. It wasted time.

We improve this problem by converting the metadata space size we need
reserve to the delalloc bytes, By this way, we can flush the pages
by a reasonable number.

(Now we use a fixed number to do conversion, it is not flexible, maybe
 we can find a good way to improve it in the future.)

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/extent-tree.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 9183f9cbc121..d8da538d01fb 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4034,6 +4034,8 @@ static inline int calc_reclaim_items_nr(struct btrfs_root *root, u64 to_reclaim)
 	return nr;
 }
 
+#define EXTENT_SIZE_PER_ITEM	(256 * 1024)
+
 /*
  * shrink metadata reservation for delalloc
  */
@@ -4050,6 +4052,10 @@ static void shrink_delalloc(struct btrfs_root *root, u64 to_reclaim, u64 orig,
 	int loops;
 	enum btrfs_reserve_flush_enum flush;
 
+	/* Calc the number of the pages we need flush for space reservation */
+	to_reclaim = calc_reclaim_items_nr(root, to_reclaim);
+	to_reclaim *= EXTENT_SIZE_PER_ITEM;
+
 	trans = (struct btrfs_trans_handle *)current->journal_info;
 	block_rsv = &root->fs_info->delalloc_block_rsv;
 	space_info = block_rsv->space_info;
-- 
cgit 


From 9f3a074d108810139ad4af49a29d347a4cf41e9a Mon Sep 17 00:00:00 2001
From: Miao Xie <miaox@cn.fujitsu.com>
Date: Mon, 4 Nov 2013 23:13:24 +0800
Subject: Btrfs: don't wait for all the async delalloc when shrinking delalloc

It was very likely that there were lots of async delalloc pages in the
filesystem, if we waited until all the pages were flushed, we would be
blocked for a long time, and the performance would also drop down.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/extent-tree.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index d8da538d01fb..83bffbea7d97 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4079,9 +4079,19 @@ static void shrink_delalloc(struct btrfs_root *root, u64 to_reclaim, u64 orig,
 		 * We need to wait for the async pages to actually start before
 		 * we do anything.
 		 */
-		wait_event(root->fs_info->async_submit_wait,
-			   !atomic_read(&root->fs_info->async_delalloc_pages));
+		max_reclaim = atomic_read(&root->fs_info->async_delalloc_pages);
+		if (!max_reclaim)
+			goto skip_async;
+
+		if (max_reclaim <= nr_pages)
+			max_reclaim = 0;
+		else
+			max_reclaim -= nr_pages;
 
+		wait_event(root->fs_info->async_submit_wait,
+			   atomic_read(&root->fs_info->async_delalloc_pages) <=
+			   (int)max_reclaim);
+skip_async:
 		if (!trans)
 			flush = BTRFS_RESERVE_FLUSH_ALL;
 		else
-- 
cgit 


From b02441999efcc6152b87cd58e7970bb7843f76cf Mon Sep 17 00:00:00 2001
From: Miao Xie <miaox@cn.fujitsu.com>
Date: Mon, 4 Nov 2013 23:13:25 +0800
Subject: Btrfs: don't wait for the completion of all the ordered extents

It is very likely that there are lots of ordered extents in the filesytem,
if we wait for the completion of all of them when we want to reclaim some
space for the metadata space reservation, we would be blocked for a long
time. The performance would drop down suddenly for a long time.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/dev-replace.c  |  4 ++--
 fs/btrfs/extent-tree.c  | 11 ++++++-----
 fs/btrfs/ioctl.c        |  2 +-
 fs/btrfs/ordered-data.c | 22 +++++++++++++++++-----
 fs/btrfs/ordered-data.h |  4 ++--
 fs/btrfs/relocation.c   |  2 +-
 fs/btrfs/super.c        |  2 +-
 fs/btrfs/transaction.c  |  2 +-
 8 files changed, 31 insertions(+), 18 deletions(-)

diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index cb94310db072..3d2495e83e62 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -391,7 +391,7 @@ int btrfs_dev_replace_start(struct btrfs_root *root,
 	args->result = BTRFS_IOCTL_DEV_REPLACE_RESULT_NO_ERROR;
 	btrfs_dev_replace_unlock(dev_replace);
 
-	btrfs_wait_all_ordered_extents(root->fs_info);
+	btrfs_wait_ordered_roots(root->fs_info, -1);
 
 	/* force writing the updated state information to disk */
 	trans = btrfs_start_transaction(root, 0);
@@ -466,7 +466,7 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info,
 		mutex_unlock(&dev_replace->lock_finishing_cancel_unmount);
 		return ret;
 	}
-	btrfs_wait_all_ordered_extents(root->fs_info);
+	btrfs_wait_ordered_roots(root->fs_info, -1);
 
 	trans = btrfs_start_transaction(root, 0);
 	if (IS_ERR(trans)) {
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index 83bffbea7d97..a21bbf83fdc2 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4018,7 +4018,7 @@ static void btrfs_writeback_inodes_sb_nr(struct btrfs_root *root,
 		 */
 		btrfs_start_all_delalloc_inodes(root->fs_info, 0);
 		if (!current->journal_info)
-			btrfs_wait_all_ordered_extents(root->fs_info);
+			btrfs_wait_ordered_roots(root->fs_info, -1);
 	}
 }
 
@@ -4050,11 +4050,12 @@ static void shrink_delalloc(struct btrfs_root *root, u64 to_reclaim, u64 orig,
 	long time_left;
 	unsigned long nr_pages;
 	int loops;
+	int items;
 	enum btrfs_reserve_flush_enum flush;
 
 	/* Calc the number of the pages we need flush for space reservation */
-	to_reclaim = calc_reclaim_items_nr(root, to_reclaim);
-	to_reclaim *= EXTENT_SIZE_PER_ITEM;
+	items = calc_reclaim_items_nr(root, to_reclaim);
+	to_reclaim = items * EXTENT_SIZE_PER_ITEM;
 
 	trans = (struct btrfs_trans_handle *)current->journal_info;
 	block_rsv = &root->fs_info->delalloc_block_rsv;
@@ -4066,7 +4067,7 @@ static void shrink_delalloc(struct btrfs_root *root, u64 to_reclaim, u64 orig,
 		if (trans)
 			return;
 		if (wait_ordered)
-			btrfs_wait_all_ordered_extents(root->fs_info);
+			btrfs_wait_ordered_roots(root->fs_info, items);
 		return;
 	}
 
@@ -4105,7 +4106,7 @@ skip_async:
 
 		loops++;
 		if (wait_ordered && !trans) {
-			btrfs_wait_all_ordered_extents(root->fs_info);
+			btrfs_wait_ordered_roots(root->fs_info, items);
 		} else {
 			time_left = schedule_timeout_killable(1);
 			if (time_left)
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 6523108d2984..d4f2861b0d9e 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -572,7 +572,7 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir,
 	if (ret)
 		return ret;
 
-	btrfs_wait_ordered_extents(root);
+	btrfs_wait_ordered_extents(root, -1);
 
 	pending_snapshot = kzalloc(sizeof(*pending_snapshot), GFP_NOFS);
 	if (!pending_snapshot)
diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 8a5eff366596..25a8f3812f14 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -565,10 +565,11 @@ static void btrfs_run_ordered_extent_work(struct btrfs_work *work)
  * wait for all the ordered extents in a root.  This is done when balancing
  * space between drives.
  */
-void btrfs_wait_ordered_extents(struct btrfs_root *root)
+int btrfs_wait_ordered_extents(struct btrfs_root *root, int nr)
 {
 	struct list_head splice, works;
 	struct btrfs_ordered_extent *ordered, *next;
+	int count = 0;
 
 	INIT_LIST_HEAD(&splice);
 	INIT_LIST_HEAD(&works);
@@ -576,7 +577,7 @@ void btrfs_wait_ordered_extents(struct btrfs_root *root)
 	mutex_lock(&root->fs_info->ordered_operations_mutex);
 	spin_lock(&root->ordered_extent_lock);
 	list_splice_init(&root->ordered_extents, &splice);
-	while (!list_empty(&splice)) {
+	while (!list_empty(&splice) && nr) {
 		ordered = list_first_entry(&splice, struct btrfs_ordered_extent,
 					   root_extent_list);
 		list_move_tail(&ordered->root_extent_list,
@@ -591,7 +592,11 @@ void btrfs_wait_ordered_extents(struct btrfs_root *root)
 
 		cond_resched();
 		spin_lock(&root->ordered_extent_lock);
+		if (nr != -1)
+			nr--;
+		count++;
 	}
+	list_splice_tail(&splice, &root->ordered_extents);
 	spin_unlock(&root->ordered_extent_lock);
 
 	list_for_each_entry_safe(ordered, next, &works, work_list) {
@@ -601,18 +606,21 @@ void btrfs_wait_ordered_extents(struct btrfs_root *root)
 		cond_resched();
 	}
 	mutex_unlock(&root->fs_info->ordered_operations_mutex);
+
+	return count;
 }
 
-void btrfs_wait_all_ordered_extents(struct btrfs_fs_info *fs_info)
+void btrfs_wait_ordered_roots(struct btrfs_fs_info *fs_info, int nr)
 {
 	struct btrfs_root *root;
 	struct list_head splice;
+	int done;
 
 	INIT_LIST_HEAD(&splice);
 
 	spin_lock(&fs_info->ordered_root_lock);
 	list_splice_init(&fs_info->ordered_roots, &splice);
-	while (!list_empty(&splice)) {
+	while (!list_empty(&splice) && nr) {
 		root = list_first_entry(&splice, struct btrfs_root,
 					ordered_root);
 		root = btrfs_grab_fs_root(root);
@@ -621,10 +629,14 @@ void btrfs_wait_all_ordered_extents(struct btrfs_fs_info *fs_info)
 			       &fs_info->ordered_roots);
 		spin_unlock(&fs_info->ordered_root_lock);
 
-		btrfs_wait_ordered_extents(root);
+		done = btrfs_wait_ordered_extents(root, nr);
 		btrfs_put_fs_root(root);
 
 		spin_lock(&fs_info->ordered_root_lock);
+		if (nr != -1) {
+			nr -= done;
+			WARN_ON(nr < 0);
+		}
 	}
 	spin_unlock(&fs_info->ordered_root_lock);
 }
diff --git a/fs/btrfs/ordered-data.h b/fs/btrfs/ordered-data.h
index 3982db1c1b36..9b0450f7ac20 100644
--- a/fs/btrfs/ordered-data.h
+++ b/fs/btrfs/ordered-data.h
@@ -195,8 +195,8 @@ int btrfs_run_ordered_operations(struct btrfs_trans_handle *trans,
 void btrfs_add_ordered_operation(struct btrfs_trans_handle *trans,
 				 struct btrfs_root *root,
 				 struct inode *inode);
-void btrfs_wait_ordered_extents(struct btrfs_root *root);
-void btrfs_wait_all_ordered_extents(struct btrfs_fs_info *fs_info);
+int btrfs_wait_ordered_extents(struct btrfs_root *root, int nr);
+void btrfs_wait_ordered_roots(struct btrfs_fs_info *fs_info, int nr);
 void btrfs_get_logged_extents(struct btrfs_root *log, struct inode *inode);
 void btrfs_wait_logged_extents(struct btrfs_root *log, u64 transid);
 void btrfs_free_logged_extents(struct btrfs_root *log, u64 transid);
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index 70eca79bae52..e1b3c2c73c44 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -4227,7 +4227,7 @@ int btrfs_relocate_block_group(struct btrfs_root *extent_root, u64 group_start)
 		err = ret;
 		goto out;
 	}
-	btrfs_wait_all_ordered_extents(fs_info);
+	btrfs_wait_ordered_roots(fs_info, -1);
 
 	while (1) {
 		mutex_lock(&fs_info->cleaner_mutex);
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index 1de6d4d67431..2d8ac1bf0cf9 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -920,7 +920,7 @@ int btrfs_sync_fs(struct super_block *sb, int wait)
 		return 0;
 	}
 
-	btrfs_wait_all_ordered_extents(fs_info);
+	btrfs_wait_ordered_roots(fs_info, -1);
 
 	trans = btrfs_attach_transaction_barrier(root);
 	if (IS_ERR(trans)) {
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 277fe812d047..32c100b8c563 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1636,7 +1636,7 @@ static inline int btrfs_start_delalloc_flush(struct btrfs_fs_info *fs_info)
 static inline void btrfs_wait_delalloc_flush(struct btrfs_fs_info *fs_info)
 {
 	if (btrfs_test_opt(fs_info->tree_root, FLUSHONCOMMIT))
-		btrfs_wait_all_ordered_extents(fs_info);
+		btrfs_wait_ordered_roots(fs_info, -1);
 }
 
 int btrfs_commit_transaction(struct btrfs_trans_handle *trans,
-- 
cgit 


From 91aef86f3b8ab0685d930a5468254384513d1c97 Mon Sep 17 00:00:00 2001
From: Miao Xie <miaox@cn.fujitsu.com>
Date: Mon, 4 Nov 2013 23:13:26 +0800
Subject: Btrfs: rename btrfs_start_all_delalloc_inodes

rename the function -- btrfs_start_all_delalloc_inodes(), and make its
name be compatible to btrfs_wait_ordered_roots(), since they are always
used at the same place.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/ctree.h       | 3 +--
 fs/btrfs/dev-replace.c | 2 +-
 fs/btrfs/extent-tree.c | 2 +-
 fs/btrfs/inode.c       | 3 +--
 fs/btrfs/ioctl.c       | 2 +-
 fs/btrfs/relocation.c  | 2 +-
 fs/btrfs/transaction.c | 2 +-
 7 files changed, 7 insertions(+), 9 deletions(-)

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index 34279665fd69..aea4433081dc 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3680,8 +3680,7 @@ int btrfs_truncate_inode_items(struct btrfs_trans_handle *trans,
 			       u32 min_type);
 
 int btrfs_start_delalloc_inodes(struct btrfs_root *root, int delay_iput);
-int btrfs_start_all_delalloc_inodes(struct btrfs_fs_info *fs_info,
-				    int delay_iput);
+int btrfs_start_delalloc_roots(struct btrfs_fs_info *fs_info, int delay_iput);
 int btrfs_set_extent_delalloc(struct inode *inode, u64 start, u64 end,
 			      struct extent_state **cached_state);
 int btrfs_create_subvol_root(struct btrfs_trans_handle *trans,
diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 3d2495e83e62..342f9fd411e3 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -461,7 +461,7 @@ static int btrfs_dev_replace_finishing(struct btrfs_fs_info *fs_info,
 	 * flush all outstanding I/O and inode extent mappings before the
 	 * copy operation is declared as being finished
 	 */
-	ret = btrfs_start_all_delalloc_inodes(root->fs_info, 0);
+	ret = btrfs_start_delalloc_roots(root->fs_info, 0);
 	if (ret) {
 		mutex_unlock(&dev_replace->lock_finishing_cancel_unmount);
 		return ret;
diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c
index a21bbf83fdc2..45d98d01028f 100644
--- a/fs/btrfs/extent-tree.c
+++ b/fs/btrfs/extent-tree.c
@@ -4016,7 +4016,7 @@ static void btrfs_writeback_inodes_sb_nr(struct btrfs_root *root,
 		 * the filesystem is readonly(all dirty pages are written to
 		 * the disk).
 		 */
-		btrfs_start_all_delalloc_inodes(root->fs_info, 0);
+		btrfs_start_delalloc_roots(root->fs_info, 0);
 		if (!current->journal_info)
 			btrfs_wait_ordered_roots(root->fs_info, -1);
 	}
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 57fa19d69e90..da8d2f696ac5 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8306,8 +8306,7 @@ int btrfs_start_delalloc_inodes(struct btrfs_root *root, int delay_iput)
 	return ret;
 }
 
-int btrfs_start_all_delalloc_inodes(struct btrfs_fs_info *fs_info,
-				    int delay_iput)
+int btrfs_start_delalloc_roots(struct btrfs_fs_info *fs_info, int delay_iput)
 {
 	struct btrfs_root *root;
 	struct list_head splice;
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index d4f2861b0d9e..1d04b5559e61 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -4542,7 +4542,7 @@ long btrfs_ioctl(struct file *file, unsigned int
 	case BTRFS_IOC_SYNC: {
 		int ret;
 
-		ret = btrfs_start_all_delalloc_inodes(root->fs_info, 0);
+		ret = btrfs_start_delalloc_roots(root->fs_info, 0);
 		if (ret)
 			return ret;
 		ret = btrfs_sync_fs(file->f_dentry->d_sb, 1);
diff --git a/fs/btrfs/relocation.c b/fs/btrfs/relocation.c
index e1b3c2c73c44..ce459a7cb16d 100644
--- a/fs/btrfs/relocation.c
+++ b/fs/btrfs/relocation.c
@@ -4222,7 +4222,7 @@ int btrfs_relocate_block_group(struct btrfs_root *extent_root, u64 group_start)
 	printk(KERN_INFO "btrfs: relocating block group %llu flags %llu\n",
 	       rc->block_group->key.objectid, rc->block_group->flags);
 
-	ret = btrfs_start_all_delalloc_inodes(fs_info, 0);
+	ret = btrfs_start_delalloc_roots(fs_info, 0);
 	if (ret < 0) {
 		err = ret;
 		goto out;
diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 32c100b8c563..57c16b46afbd 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1629,7 +1629,7 @@ static int btrfs_flush_all_pending_stuffs(struct btrfs_trans_handle *trans,
 static inline int btrfs_start_delalloc_flush(struct btrfs_fs_info *fs_info)
 {
 	if (btrfs_test_opt(fs_info->tree_root, FLUSHONCOMMIT))
-		return btrfs_start_all_delalloc_inodes(fs_info, 1);
+		return btrfs_start_delalloc_roots(fs_info, 1);
 	return 0;
 }
 
-- 
cgit 


From 9206c561554c948111d3cf6fc563a0beaaf790b3 Mon Sep 17 00:00:00 2001
From: Andreas Dilger <andreas.dilger@intel.com>
Date: Mon, 11 Nov 2013 22:38:12 -0500
Subject: ext4: return non-zero st_blocks for inline data

Return a non-zero st_blocks to userspace for statfs() and friends.
Some versions of tar will assume that files with st_blocks == 0
do not contain any data and will skip reading them entirely.

Signed-off-by: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 fs/ext4/inode.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 43015fa69c3a..075763474118 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4693,6 +4693,15 @@ int ext4_getattr(struct vfsmount *mnt, struct dentry *dentry,
 	inode = dentry->d_inode;
 	generic_fillattr(inode, stat);
 
+	/*
+	 * If there is inline data in the inode, the inode will normally not
+	 * have data blocks allocated (it may have an external xattr block).
+	 * Report at least one sector for such files, so tools like tar, rsync,
+	 * others doen't incorrectly think the file is completely sparse.
+	 */
+	if (unlikely(ext4_has_inline_data(inode)))
+		stat->blocks += (stat->size + 511) >> 9;
+
 	/*
 	 * We can't update i_blocks if the block allocation is delayed
 	 * otherwise in the case of system crash before the real block
@@ -4704,9 +4713,8 @@ int ext4_getattr(struct vfsmount *mnt, struct dentry *dentry,
 	 * blocks for this file.
 	 */
 	delalloc_blocks = EXT4_C2B(EXT4_SB(inode->i_sb),
-				EXT4_I(inode)->i_reserved_data_blocks);
-
-	stat->blocks += delalloc_blocks << (inode->i_sb->s_blocksize_bits-9);
+				   EXT4_I(inode)->i_reserved_data_blocks);
+	stat->blocks += delalloc_blocks << (inode->i_sb->s_blocksize_bits - 9);
 	return 0;
 }
 
-- 
cgit 


From 3f61c0cc706d5c0beee7af17ffeb706403cf513c Mon Sep 17 00:00:00 2001
From: Andreas Dilger <adilger@dilger.ca>
Date: Mon, 11 Nov 2013 22:40:40 -0500
Subject: ext4: add prototypes for macro-generated functions

It isn't very easy to find the declarations for the functions created
by EXT4_INODE_BIT_FNS() because the names are generated by macros:

    ext4_test_inode_flag, ext4_set_inode_flag, ext4_clear_inode_flag
    ext4_test_inode_state, ext4_set_inode_state, ext4_clear_inode_state

Add explicit declarations for these functions so that grep and tags
can find them.

Signed-off-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---
 fs/ext4/ext4.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 65485ab7a889..2238e6097cfa 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1402,7 +1402,18 @@ static inline void ext4_clear_inode_##name(struct inode *inode, int bit) \
 	clear_bit(bit + (offset), &EXT4_I(inode)->i_##field);		\
 }
 
+/* Add these declarations here only so that these functions can be
+ * found by name.  Otherwise, they are very hard to locate. */
+static inline int ext4_test_inode_flag(struct inode *inode, int bit);
+static inline void ext4_set_inode_flag(struct inode *inode, int bit);
+static inline void ext4_clear_inode_flag(struct inode *inode, int bit);
 EXT4_INODE_BIT_FNS(flag, flags, 0)
+
+/* Add these declarations here only so that these functions can be
+ * found by name.  Otherwise, they are very hard to locate. */
+static inline int ext4_test_inode_state(struct inode *inode, int bit);
+static inline void ext4_set_inode_state(struct inode *inode, int bit);
+static inline void ext4_clear_inode_state(struct inode *inode, int bit);
 #if (BITS_PER_LONG < 64)
 EXT4_INODE_BIT_FNS(state, state_flags, 0)
 
-- 
cgit 


From 50a9c70714dfb17a85a3fb762675a64f598d504b Mon Sep 17 00:00:00 2001
From: Joel Fernandes <joelf@ti.com>
Date: Thu, 31 Oct 2013 16:31:23 -0500
Subject: dma: edma: Add support for Cyclic DMA

Using the PaRAM configuration function that we split for reuse by the
different DMA types, we implement Cyclic DMA support.
For the cyclic case, we pass different configuration parameters to this
function, and handle all the Cyclic-specific functionality separately.

Callbacks to the DMA users are handled using vchan_cyclic_callback in
the virt-dma layer. Linking is handled the same way as the slave SG case
except for the last slot where we link it back to the first one in a
cyclic fashion.

For continuity, we check for cases where no.of periods is great than the
MAX number of slots the driver can allocate for a particular descriptor
and error out on such cases.

Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/edma.c | 159 ++++++++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 151 insertions(+), 8 deletions(-)

diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index 183ec85cb6ca..592f3be8b435 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -60,6 +60,7 @@
 struct edma_desc {
 	struct virt_dma_desc		vdesc;
 	struct list_head		node;
+	int				cyclic;
 	int				absync;
 	int				pset_nr;
 	int				processed;
@@ -173,8 +174,13 @@ static void edma_execute(struct edma_chan *echan)
 	 * then setup a link to the dummy slot, this results in all future
 	 * events being absorbed and that's OK because we're done
 	 */
-	if (edesc->processed == edesc->pset_nr)
-		edma_link(echan->slot[nslots-1], echan->ecc->dummy_slot);
+	if (edesc->processed == edesc->pset_nr) {
+		if (edesc->cyclic)
+			edma_link(echan->slot[nslots-1], echan->slot[1]);
+		else
+			edma_link(echan->slot[nslots-1],
+				  echan->ecc->dummy_slot);
+	}
 
 	edma_resume(echan->ch_num);
 
@@ -459,6 +465,138 @@ static struct dma_async_tx_descriptor *edma_prep_slave_sg(
 	return vchan_tx_prep(&echan->vchan, &edesc->vdesc, tx_flags);
 }
 
+static struct dma_async_tx_descriptor *edma_prep_dma_cyclic(
+	struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len,
+	size_t period_len, enum dma_transfer_direction direction,
+	unsigned long tx_flags, void *context)
+{
+	struct edma_chan *echan = to_edma_chan(chan);
+	struct device *dev = chan->device->dev;
+	struct edma_desc *edesc;
+	dma_addr_t src_addr, dst_addr;
+	enum dma_slave_buswidth dev_width;
+	u32 burst;
+	int i, ret, nslots;
+
+	if (unlikely(!echan || !buf_len || !period_len))
+		return NULL;
+
+	if (direction == DMA_DEV_TO_MEM) {
+		src_addr = echan->cfg.src_addr;
+		dst_addr = buf_addr;
+		dev_width = echan->cfg.src_addr_width;
+		burst = echan->cfg.src_maxburst;
+	} else if (direction == DMA_MEM_TO_DEV) {
+		src_addr = buf_addr;
+		dst_addr = echan->cfg.dst_addr;
+		dev_width = echan->cfg.dst_addr_width;
+		burst = echan->cfg.dst_maxburst;
+	} else {
+		dev_err(dev, "%s: bad direction?\n", __func__);
+		return NULL;
+	}
+
+	if (dev_width == DMA_SLAVE_BUSWIDTH_UNDEFINED) {
+		dev_err(dev, "Undefined slave buswidth\n");
+		return NULL;
+	}
+
+	if (unlikely(buf_len % period_len)) {
+		dev_err(dev, "Period should be multiple of Buffer length\n");
+		return NULL;
+	}
+
+	nslots = (buf_len / period_len) + 1;
+
+	/*
+	 * Cyclic DMA users such as audio cannot tolerate delays introduced
+	 * by cases where the number of periods is more than the maximum
+	 * number of SGs the EDMA driver can handle at a time. For DMA types
+	 * such as Slave SGs, such delays are tolerable and synchronized,
+	 * but the synchronization is difficult to achieve with Cyclic and
+	 * cannot be guaranteed, so we error out early.
+	 */
+	if (nslots > MAX_NR_SG)
+		return NULL;
+
+	edesc = kzalloc(sizeof(*edesc) + nslots *
+		sizeof(edesc->pset[0]), GFP_ATOMIC);
+	if (!edesc) {
+		dev_dbg(dev, "Failed to allocate a descriptor\n");
+		return NULL;
+	}
+
+	edesc->cyclic = 1;
+	edesc->pset_nr = nslots;
+
+	dev_dbg(dev, "%s: nslots=%d\n", __func__, nslots);
+	dev_dbg(dev, "%s: period_len=%d\n", __func__, period_len);
+	dev_dbg(dev, "%s: buf_len=%d\n", __func__, buf_len);
+
+	for (i = 0; i < nslots; i++) {
+		/* Allocate a PaRAM slot, if needed */
+		if (echan->slot[i] < 0) {
+			echan->slot[i] =
+				edma_alloc_slot(EDMA_CTLR(echan->ch_num),
+						EDMA_SLOT_ANY);
+			if (echan->slot[i] < 0) {
+				dev_err(dev, "Failed to allocate slot\n");
+				return NULL;
+			}
+		}
+
+		if (i == nslots - 1) {
+			memcpy(&edesc->pset[i], &edesc->pset[0],
+			       sizeof(edesc->pset[0]));
+			break;
+		}
+
+		ret = edma_config_pset(chan, &edesc->pset[i], src_addr,
+				       dst_addr, burst, dev_width, period_len,
+				       direction);
+		if (ret < 0)
+			return NULL;
+
+		if (direction == DMA_DEV_TO_MEM)
+			dst_addr += period_len;
+		else
+			src_addr += period_len;
+
+		dev_dbg(dev, "%s: Configure period %d of buf:\n", __func__, i);
+		dev_dbg(dev,
+			"\n pset[%d]:\n"
+			"  chnum\t%d\n"
+			"  slot\t%d\n"
+			"  opt\t%08x\n"
+			"  src\t%08x\n"
+			"  dst\t%08x\n"
+			"  abcnt\t%08x\n"
+			"  ccnt\t%08x\n"
+			"  bidx\t%08x\n"
+			"  cidx\t%08x\n"
+			"  lkrld\t%08x\n",
+			i, echan->ch_num, echan->slot[i],
+			edesc->pset[i].opt,
+			edesc->pset[i].src,
+			edesc->pset[i].dst,
+			edesc->pset[i].a_b_cnt,
+			edesc->pset[i].ccnt,
+			edesc->pset[i].src_dst_bidx,
+			edesc->pset[i].src_dst_cidx,
+			edesc->pset[i].link_bcntrld);
+
+		edesc->absync = ret;
+
+		/*
+		 * Enable interrupts for every period because callback
+		 * has to be called for every period.
+		 */
+		edesc->pset[i].opt |= TCINTEN;
+	}
+
+	return vchan_tx_prep(&echan->vchan, &edesc->vdesc, tx_flags);
+}
+
 static void edma_callback(unsigned ch_num, u16 ch_status, void *data)
 {
 	struct edma_chan *echan = data;
@@ -467,24 +605,28 @@ static void edma_callback(unsigned ch_num, u16 ch_status, void *data)
 	unsigned long flags;
 	struct edmacc_param p;
 
-	/* Pause the channel */
-	edma_pause(echan->ch_num);
+	edesc = echan->edesc;
+
+	/* Pause the channel for non-cyclic */
+	if (!edesc || (edesc && !edesc->cyclic))
+		edma_pause(echan->ch_num);
 
 	switch (ch_status) {
 	case EDMA_DMA_COMPLETE:
 		spin_lock_irqsave(&echan->vchan.lock, flags);
 
-		edesc = echan->edesc;
 		if (edesc) {
-			if (edesc->processed == edesc->pset_nr) {
+			if (edesc->cyclic) {
+				vchan_cyclic_callback(&edesc->vdesc);
+			} else if (edesc->processed == edesc->pset_nr) {
 				dev_dbg(dev, "Transfer complete, stopping channel %d\n", ch_num);
 				edma_stop(echan->ch_num);
 				vchan_cookie_complete(&edesc->vdesc);
+				edma_execute(echan);
 			} else {
 				dev_dbg(dev, "Intermediate transfer complete on channel %d\n", ch_num);
+				edma_execute(echan);
 			}
-
-			edma_execute(echan);
 		}
 
 		spin_unlock_irqrestore(&echan->vchan.lock, flags);
@@ -680,6 +822,7 @@ static void edma_dma_init(struct edma_cc *ecc, struct dma_device *dma,
 			  struct device *dev)
 {
 	dma->device_prep_slave_sg = edma_prep_slave_sg;
+	dma->device_prep_dma_cyclic = edma_prep_dma_cyclic;
 	dma->device_alloc_chan_resources = edma_alloc_chan_resources;
 	dma->device_free_chan_resources = edma_free_chan_resources;
 	dma->device_issue_pending = edma_issue_pending;
-- 
cgit 


From 0dd450fe13da4aeacc69916ecfe39d3d0b531900 Mon Sep 17 00:00:00 2001
From: Mischa Jonker <mjonker@synopsys.com>
Date: Thu, 7 Nov 2013 14:55:11 +0100
Subject: ARC: Add perf support for ARC700 cores

This adds basic perf support for ARC700 cores. Most PERF_COUNT_HW* events
are supported now.

Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/boot/dts/angel4.dts      |   4 +
 arch/arc/include/asm/perf_event.h | 204 +++++++++++++++++++++++-
 arch/arc/kernel/Makefile          |   1 +
 arch/arc/kernel/perf_event.c      | 322 ++++++++++++++++++++++++++++++++++++++
 4 files changed, 530 insertions(+), 1 deletion(-)
 create mode 100644 arch/arc/kernel/perf_event.c

diff --git a/arch/arc/boot/dts/angel4.dts b/arch/arc/boot/dts/angel4.dts
index 4fb2d6f655bd..bcf662d21a57 100644
--- a/arch/arc/boot/dts/angel4.dts
+++ b/arch/arc/boot/dts/angel4.dts
@@ -67,5 +67,9 @@
 				reg = <1>;
 			};
 		};
+
+		arcpmu0: pmu {
+			compatible = "snps,arc700-pmu";
+		};
 	};
 };
diff --git a/arch/arc/include/asm/perf_event.h b/arch/arc/include/asm/perf_event.h
index 115ad96480e6..cbf755e32a03 100644
--- a/arch/arc/include/asm/perf_event.h
+++ b/arch/arc/include/asm/perf_event.h
@@ -1,5 +1,7 @@
 /*
- * Copyright (C) 2011-2012 Synopsys, Inc. (www.synopsys.com)
+ * Linux performance counter support for ARC
+ *
+ * Copyright (C) 2011-2013 Synopsys, Inc. (www.synopsys.com)
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -10,4 +12,204 @@
 #ifndef __ASM_PERF_EVENT_H
 #define __ASM_PERF_EVENT_H
 
+/* real maximum varies per CPU, this is the maximum supported by the driver */
+#define ARC_PMU_MAX_HWEVENTS	64
+
+#define ARC_REG_CC_BUILD	0xF6
+#define ARC_REG_CC_INDEX	0x240
+#define ARC_REG_CC_NAME0	0x241
+#define ARC_REG_CC_NAME1	0x242
+
+#define ARC_REG_PCT_BUILD	0xF5
+#define ARC_REG_PCT_COUNTL	0x250
+#define ARC_REG_PCT_COUNTH	0x251
+#define ARC_REG_PCT_SNAPL	0x252
+#define ARC_REG_PCT_SNAPH	0x253
+#define ARC_REG_PCT_CONFIG	0x254
+#define ARC_REG_PCT_CONTROL	0x255
+#define ARC_REG_PCT_INDEX	0x256
+
+#define ARC_REG_PCT_CONTROL_CC	(1 << 16)	/* clear counts */
+#define ARC_REG_PCT_CONTROL_SN	(1 << 17)	/* snapshot */
+
+struct arc_reg_pct_build {
+#ifdef CONFIG_CPU_BIG_ENDIAN
+	unsigned int m:8, c:8, r:6, s:2, v:8;
+#else
+	unsigned int v:8, s:2, r:6, c:8, m:8;
+#endif
+};
+
+struct arc_reg_cc_build {
+#ifdef CONFIG_CPU_BIG_ENDIAN
+	unsigned int c:16, r:8, v:8;
+#else
+	unsigned int v:8, r:8, c:16;
+#endif
+};
+
+#define PERF_COUNT_ARC_DCLM	(PERF_COUNT_HW_MAX + 0)
+#define PERF_COUNT_ARC_DCSM	(PERF_COUNT_HW_MAX + 1)
+#define PERF_COUNT_ARC_ICM	(PERF_COUNT_HW_MAX + 2)
+#define PERF_COUNT_ARC_BPOK	(PERF_COUNT_HW_MAX + 3)
+#define PERF_COUNT_ARC_EDTLB	(PERF_COUNT_HW_MAX + 4)
+#define PERF_COUNT_ARC_EITLB	(PERF_COUNT_HW_MAX + 5)
+#define PERF_COUNT_ARC_HW_MAX	(PERF_COUNT_HW_MAX + 6)
+
+/*
+ * The "generalized" performance events seem to really be a copy
+ * of the available events on x86 processors; the mapping to ARC
+ * events is not always possible 1-to-1. Fortunately, there doesn't
+ * seem to be an exact definition for these events, so we can cheat
+ * a bit where necessary.
+ *
+ * In particular, the following PERF events may behave a bit differently
+ * compared to other architectures:
+ *
+ * PERF_COUNT_HW_CPU_CYCLES
+ *	Cycles not in halted state
+ *
+ * PERF_COUNT_HW_REF_CPU_CYCLES
+ *	Reference cycles not in halted state, same as PERF_COUNT_HW_CPU_CYCLES
+ *	for now as we don't do Dynamic Voltage/Frequency Scaling (yet)
+ *
+ * PERF_COUNT_HW_BUS_CYCLES
+ *	Unclear what this means, Intel uses 0x013c, which according to
+ *	their datasheet means "unhalted reference cycles". It sounds similar
+ *	to PERF_COUNT_HW_REF_CPU_CYCLES, and we use the same counter for it.
+ *
+ * PERF_COUNT_HW_STALLED_CYCLES_BACKEND
+ * PERF_COUNT_HW_STALLED_CYCLES_FRONTEND
+ *	The ARC 700 can either measure stalls per pipeline stage, or all stalls
+ *	combined; for now we assign all stalls to STALLED_CYCLES_BACKEND
+ *	and all pipeline flushes (e.g. caused by mispredicts, etc.) to
+ *	STALLED_CYCLES_FRONTEND.
+ *
+ *	We could start multiple performance counters and combine everything
+ *	afterwards, but that makes it complicated.
+ *
+ *	Note that I$ cache misses aren't counted by either of the two!
+ */
+
+static const char * const arc_pmu_ev_hw_map[] = {
+	[PERF_COUNT_HW_CPU_CYCLES] = "crun",
+	[PERF_COUNT_HW_REF_CPU_CYCLES] = "crun",
+	[PERF_COUNT_HW_BUS_CYCLES] = "crun",
+	[PERF_COUNT_HW_INSTRUCTIONS] = "iall",
+	[PERF_COUNT_HW_BRANCH_MISSES] = "bpfail",
+	[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = "ijmp",
+	[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = "bflush",
+	[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = "bstall",
+	[PERF_COUNT_ARC_DCLM] = "dclm",
+	[PERF_COUNT_ARC_DCSM] = "dcsm",
+	[PERF_COUNT_ARC_ICM] = "icm",
+	[PERF_COUNT_ARC_BPOK] = "bpok",
+	[PERF_COUNT_ARC_EDTLB] = "edtlb",
+	[PERF_COUNT_ARC_EITLB] = "eitlb",
+};
+
+#define C(_x)			PERF_COUNT_HW_CACHE_##_x
+#define CACHE_OP_UNSUPPORTED	0xffff
+
+static const unsigned arc_pmu_cache_map[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = {
+	[C(L1D)] = {
+		[C(OP_READ)] = {
+			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,
+			[C(RESULT_MISS)]	= PERF_COUNT_ARC_DCLM,
+		},
+		[C(OP_WRITE)] = {
+			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,
+			[C(RESULT_MISS)]	= PERF_COUNT_ARC_DCSM,
+		},
+		[C(OP_PREFETCH)] = {
+			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,
+			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,
+		},
+	},
+	[C(L1I)] = {
+		[C(OP_READ)] = {
+			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,
+			[C(RESULT_MISS)]	= PERF_COUNT_ARC_ICM,
+		},
+		[C(OP_WRITE)] = {
+			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,
+			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,
+		},
+		[C(OP_PREFETCH)] = {
+			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,
+			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,
+		},
+	},
+	[C(LL)] = {
+		[C(OP_READ)] = {
+			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,
+			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,
+		},
+		[C(OP_WRITE)] = {
+			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,
+			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,
+		},
+		[C(OP_PREFETCH)] = {
+			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,
+			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,
+		},
+	},
+	[C(DTLB)] = {
+		[C(OP_READ)] = {
+			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,
+			[C(RESULT_MISS)]	= PERF_COUNT_ARC_EDTLB,
+		},
+		[C(OP_WRITE)] = {
+			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,
+			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,
+		},
+		[C(OP_PREFETCH)] = {
+			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,
+			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,
+		},
+	},
+	[C(ITLB)] = {
+		[C(OP_READ)] = {
+			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,
+			[C(RESULT_MISS)]	= PERF_COUNT_ARC_EITLB,
+		},
+		[C(OP_WRITE)] = {
+			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,
+			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,
+		},
+		[C(OP_PREFETCH)] = {
+			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,
+			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,
+		},
+	},
+	[C(BPU)] = {
+		[C(OP_READ)] = {
+			[C(RESULT_ACCESS)] = PERF_COUNT_HW_BRANCH_INSTRUCTIONS,
+			[C(RESULT_MISS)]	= PERF_COUNT_HW_BRANCH_MISSES,
+		},
+		[C(OP_WRITE)] = {
+			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,
+			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,
+		},
+		[C(OP_PREFETCH)] = {
+			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,
+			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,
+		},
+	},
+	[C(NODE)] = {
+		[C(OP_READ)] = {
+			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,
+			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,
+		},
+		[C(OP_WRITE)] = {
+			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,
+			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,
+		},
+		[C(OP_PREFETCH)] = {
+			[C(RESULT_ACCESS)]	= CACHE_OP_UNSUPPORTED,
+			[C(RESULT_MISS)]	= CACHE_OP_UNSUPPORTED,
+		},
+	},
+};
+
 #endif /* __ASM_PERF_EVENT_H */
diff --git a/arch/arc/kernel/Makefile b/arch/arc/kernel/Makefile
index c242ef07ba70..8004b4fa6461 100644
--- a/arch/arc/kernel/Makefile
+++ b/arch/arc/kernel/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_KPROBES)      		+= kprobes.o
 obj-$(CONFIG_ARC_MISALIGN_ACCESS) 	+= unaligned.o
 obj-$(CONFIG_KGDB)			+= kgdb.o
 obj-$(CONFIG_ARC_METAWARE_HLINK)	+= arc_hostlink.o
+obj-$(CONFIG_PERF_EVENTS)		+= perf_event.o
 
 obj-$(CONFIG_ARC_FPU_SAVE_RESTORE)	+= fpu.o
 CFLAGS_fpu.o   += -mdpfp
diff --git a/arch/arc/kernel/perf_event.c b/arch/arc/kernel/perf_event.c
new file mode 100644
index 000000000000..759e5f3e9029
--- /dev/null
+++ b/arch/arc/kernel/perf_event.c
@@ -0,0 +1,322 @@
+/*
+ * Linux performance counter support for ARC700 series
+ *
+ * Copyright (C) 2013 Synopsys, Inc. (www.synopsys.com)
+ *
+ * This code is inspired by the perf support of various other architectures.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+#include <linux/errno.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/perf_event.h>
+#include <linux/platform_device.h>
+#include <asm/arcregs.h>
+
+struct arc_pmu {
+	struct pmu	pmu;
+	int		counter_size;	/* in bits */
+	int		n_counters;
+	unsigned long	used_mask[BITS_TO_LONGS(ARC_PMU_MAX_HWEVENTS)];
+	int		ev_hw_idx[PERF_COUNT_ARC_HW_MAX];
+};
+
+/* read counter #idx; note that counter# != event# on ARC! */
+static uint64_t arc_pmu_read_counter(int idx)
+{
+	uint32_t tmp;
+	uint64_t result;
+
+	/*
+	 * ARC supports making 'snapshots' of the counters, so we don't
+	 * need to care about counters wrapping to 0 underneath our feet
+	 */
+	write_aux_reg(ARC_REG_PCT_INDEX, idx);
+	tmp = read_aux_reg(ARC_REG_PCT_CONTROL);
+	write_aux_reg(ARC_REG_PCT_CONTROL, tmp | ARC_REG_PCT_CONTROL_SN);
+	result = (uint64_t) (read_aux_reg(ARC_REG_PCT_SNAPH)) << 32;
+	result |= read_aux_reg(ARC_REG_PCT_SNAPL);
+
+	return result;
+}
+
+static void arc_perf_event_update(struct perf_event *event,
+				  struct hw_perf_event *hwc, int idx)
+{
+	struct arc_pmu *arc_pmu = container_of(event->pmu, struct arc_pmu, pmu);
+	uint64_t prev_raw_count, new_raw_count;
+	int64_t delta;
+
+	do {
+		prev_raw_count = local64_read(&hwc->prev_count);
+		new_raw_count = arc_pmu_read_counter(idx);
+	} while (local64_cmpxchg(&hwc->prev_count, prev_raw_count,
+				 new_raw_count) != prev_raw_count);
+
+	delta = (new_raw_count - prev_raw_count) &
+		((1ULL << arc_pmu->counter_size) - 1ULL);
+
+	local64_add(delta, &event->count);
+	local64_sub(delta, &hwc->period_left);
+}
+
+static void arc_pmu_read(struct perf_event *event)
+{
+	arc_perf_event_update(event, &event->hw, event->hw.idx);
+}
+
+static int arc_pmu_cache_event(u64 config)
+{
+	unsigned int cache_type, cache_op, cache_result;
+	int ret;
+
+	cache_type	= (config >>  0) & 0xff;
+	cache_op	= (config >>  8) & 0xff;
+	cache_result	= (config >> 16) & 0xff;
+	if (cache_type >= PERF_COUNT_HW_CACHE_MAX)
+		return -EINVAL;
+	if (cache_type >= PERF_COUNT_HW_CACHE_OP_MAX)
+		return -EINVAL;
+	if (cache_type >= PERF_COUNT_HW_CACHE_RESULT_MAX)
+		return -EINVAL;
+
+	ret = arc_pmu_cache_map[cache_type][cache_op][cache_result];
+
+	if (ret == CACHE_OP_UNSUPPORTED)
+		return -ENOENT;
+
+	return ret;
+}
+
+/* initializes hw_perf_event structure if event is supported */
+static int arc_pmu_event_init(struct perf_event *event)
+{
+	struct arc_pmu *arc_pmu = container_of(event->pmu, struct arc_pmu, pmu);
+	struct hw_perf_event *hwc = &event->hw;
+	int ret;
+
+	switch (event->attr.type) {
+	case PERF_TYPE_HARDWARE:
+		if (event->attr.config >= PERF_COUNT_HW_MAX)
+			return -ENOENT;
+		if (arc_pmu->ev_hw_idx[event->attr.config] < 0)
+			return -ENOENT;
+		hwc->config = arc_pmu->ev_hw_idx[event->attr.config];
+		pr_debug("initializing event %d with cfg %d\n",
+			 (int) event->attr.config, (int) hwc->config);
+		return 0;
+	case PERF_TYPE_HW_CACHE:
+		ret = arc_pmu_cache_event(event->attr.config);
+		if (ret < 0)
+			return ret;
+		hwc->config = arc_pmu->ev_hw_idx[ret];
+		return 0;
+	default:
+		return -ENOENT;
+	}
+}
+
+/* starts all counters */
+static void arc_pmu_enable(struct pmu *pmu)
+{
+	uint32_t tmp;
+	tmp = read_aux_reg(ARC_REG_PCT_CONTROL);
+	write_aux_reg(ARC_REG_PCT_CONTROL, (tmp & 0xffff0000) | 0x1);
+}
+
+/* stops all counters */
+static void arc_pmu_disable(struct pmu *pmu)
+{
+	uint32_t tmp;
+	tmp = read_aux_reg(ARC_REG_PCT_CONTROL);
+	write_aux_reg(ARC_REG_PCT_CONTROL, (tmp & 0xffff0000) | 0x0);
+}
+
+/*
+ * Assigns hardware counter to hardware condition.
+ * Note that there is no separate start/stop mechanism;
+ * stopping is achieved by assigning the 'never' condition
+ */
+static void arc_pmu_start(struct perf_event *event, int flags)
+{
+	struct hw_perf_event *hwc = &event->hw;
+	int idx = hwc->idx;
+
+	if (WARN_ON_ONCE(idx == -1))
+		return;
+
+	if (flags & PERF_EF_RELOAD)
+		WARN_ON_ONCE(!(event->hw.state & PERF_HES_UPTODATE));
+
+	event->hw.state = 0;
+
+	/* enable ARC pmu here */
+	write_aux_reg(ARC_REG_PCT_INDEX, idx);
+	write_aux_reg(ARC_REG_PCT_CONFIG, hwc->config);
+}
+
+static void arc_pmu_stop(struct perf_event *event, int flags)
+{
+	struct hw_perf_event *hwc = &event->hw;
+	int idx = hwc->idx;
+
+	if (!(event->hw.state & PERF_HES_STOPPED)) {
+		/* stop ARC pmu here */
+		write_aux_reg(ARC_REG_PCT_INDEX, idx);
+
+		/* condition code #0 is always "never" */
+		write_aux_reg(ARC_REG_PCT_CONFIG, 0);
+
+		event->hw.state |= PERF_HES_STOPPED;
+	}
+
+	if ((flags & PERF_EF_UPDATE) &&
+	    !(event->hw.state & PERF_HES_UPTODATE)) {
+		arc_perf_event_update(event, &event->hw, idx);
+		event->hw.state |= PERF_HES_UPTODATE;
+	}
+}
+
+static void arc_pmu_del(struct perf_event *event, int flags)
+{
+	struct arc_pmu *arc_pmu = container_of(event->pmu, struct arc_pmu, pmu);
+
+	arc_pmu_stop(event, PERF_EF_UPDATE);
+	__clear_bit(event->hw.idx, arc_pmu->used_mask);
+
+	perf_event_update_userpage(event);
+}
+
+/* allocate hardware counter and optionally start counting */
+static int arc_pmu_add(struct perf_event *event, int flags)
+{
+	struct arc_pmu *arc_pmu = container_of(event->pmu, struct arc_pmu, pmu);
+	struct hw_perf_event *hwc = &event->hw;
+	int idx = hwc->idx;
+
+	if (__test_and_set_bit(idx, arc_pmu->used_mask)) {
+		idx = find_first_zero_bit(arc_pmu->used_mask,
+					  arc_pmu->n_counters);
+		if (idx == arc_pmu->n_counters)
+			return -EAGAIN;
+
+		__set_bit(idx, arc_pmu->used_mask);
+		hwc->idx = idx;
+	}
+
+	write_aux_reg(ARC_REG_PCT_INDEX, idx);
+	write_aux_reg(ARC_REG_PCT_CONFIG, 0);
+	write_aux_reg(ARC_REG_PCT_COUNTL, 0);
+	write_aux_reg(ARC_REG_PCT_COUNTH, 0);
+	local64_set(&hwc->prev_count, 0);
+
+	hwc->state = PERF_HES_UPTODATE | PERF_HES_STOPPED;
+	if (flags & PERF_EF_START)
+		arc_pmu_start(event, PERF_EF_RELOAD);
+
+	perf_event_update_userpage(event);
+
+	return 0;
+}
+
+static int arc_pmu_device_probe(struct platform_device *pdev)
+{
+	struct arc_pmu *arc_pmu;
+	struct arc_reg_pct_build pct_bcr;
+	struct arc_reg_cc_build cc_bcr;
+	int i, j, ret;
+
+	union cc_name {
+		struct {
+			uint32_t word0, word1;
+			char sentinel;
+		} indiv;
+		char str[9];
+	} cc_name;
+
+
+	READ_BCR(ARC_REG_PCT_BUILD, pct_bcr);
+	if (!pct_bcr.v) {
+		pr_err("This core does not have performance counters!\n");
+		return -ENODEV;
+	}
+
+	arc_pmu = devm_kzalloc(&pdev->dev, sizeof(struct arc_pmu),
+			       GFP_KERNEL);
+	if (!arc_pmu)
+		return -ENOMEM;
+
+	arc_pmu->n_counters = pct_bcr.c;
+	BUG_ON(arc_pmu->n_counters > ARC_PMU_MAX_HWEVENTS);
+
+	arc_pmu->counter_size = 32 + (pct_bcr.s << 4);
+	pr_info("ARC PMU found with %d counters of size %d bits\n",
+		arc_pmu->n_counters, arc_pmu->counter_size);
+
+	READ_BCR(ARC_REG_CC_BUILD, cc_bcr);
+
+	if (!cc_bcr.v)
+		pr_err("Strange! Performance counters exist, but no countable conditions?\n");
+
+	pr_info("ARC PMU has %d countable conditions\n", cc_bcr.c);
+
+	cc_name.str[8] = 0;
+	for (i = 0; i < PERF_COUNT_HW_MAX; i++)
+		arc_pmu->ev_hw_idx[i] = -1;
+
+	for (j = 0; j < cc_bcr.c; j++) {
+		write_aux_reg(ARC_REG_CC_INDEX, j);
+		cc_name.indiv.word0 = read_aux_reg(ARC_REG_CC_NAME0);
+		cc_name.indiv.word1 = read_aux_reg(ARC_REG_CC_NAME1);
+		for (i = 0; i < ARRAY_SIZE(arc_pmu_ev_hw_map); i++) {
+			if (arc_pmu_ev_hw_map[i] &&
+			    !strcmp(arc_pmu_ev_hw_map[i], cc_name.str) &&
+			    strlen(arc_pmu_ev_hw_map[i])) {
+				pr_debug("mapping %d to idx %d with name %s\n",
+					 i, j, cc_name.str);
+				arc_pmu->ev_hw_idx[i] = j;
+			}
+		}
+	}
+
+	arc_pmu->pmu = (struct pmu) {
+		.pmu_enable	= arc_pmu_enable,
+		.pmu_disable	= arc_pmu_disable,
+		.event_init	= arc_pmu_event_init,
+		.add		= arc_pmu_add,
+		.del		= arc_pmu_del,
+		.start		= arc_pmu_start,
+		.stop		= arc_pmu_stop,
+		.read		= arc_pmu_read,
+	};
+
+	ret = perf_pmu_register(&arc_pmu->pmu, pdev->name, PERF_TYPE_RAW);
+
+	return ret;
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id arc_pmu_match[] = {
+	{ .compatible = "snps,arc700-pmu" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, arc_pmu_match);
+#endif
+
+static struct platform_driver arc_pmu_driver = {
+	.driver	= {
+		.name		= "arc700-pmu",
+		.of_match_table = of_match_ptr(arc_pmu_match),
+	},
+	.probe		= arc_pmu_device_probe,
+};
+
+module_platform_driver(arc_pmu_driver);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Mischa Jonker <mjonker@synopsys.com>");
+MODULE_DESCRIPTION("ARC PMU driver");
-- 
cgit 


From d6a7f73db712a11b1c30b2566758de65b308da73 Mon Sep 17 00:00:00 2001
From: Mischa Jonker <mjonker@synopsys.com>
Date: Thu, 7 Nov 2013 14:55:12 +0100
Subject: ARC: Add documentation on DT binding for ARC700 PMU

Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 Documentation/devicetree/bindings/arc/pmu.txt | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arc/pmu.txt

diff --git a/Documentation/devicetree/bindings/arc/pmu.txt b/Documentation/devicetree/bindings/arc/pmu.txt
new file mode 100644
index 000000000000..49d517340de3
--- /dev/null
+++ b/Documentation/devicetree/bindings/arc/pmu.txt
@@ -0,0 +1,24 @@
+* ARC Performance Monitor Unit
+
+The ARC 700 can be configured with a pipeline performance monitor for counting
+CPU and cache events like cache misses and hits.
+
+Note that:
+ * ARC 700 refers to a family of ARC processor cores;
+   - There is only one type of PMU available for the whole family;
+   - The PMU may support different sets of events; supported events are probed
+     at boot time, as required by the reference manual.
+
+ * The ARC 700 PMU does not support interrupts; although HW events may be
+   counted, the HW events themselves cannot serve as a trigger for a sample.
+
+Required properties:
+
+- compatible : should contain
+	"snps,arc700-pmu"
+
+Example:
+
+pmu {
+        compatible = "snps,arc700-pmu";
+};
-- 
cgit 


From 262093791b936a5cc8ef2ede37454bc1ddcdb911 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Date: Mon, 4 Nov 2013 13:51:53 +0100
Subject: fix missing edma changes to EDMA_DMA_COMPLETE status

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 sound/soc/davinci/davinci-pcm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/davinci/davinci-pcm.c b/sound/soc/davinci/davinci-pcm.c
index 8460edce1c3b..e68ba31a7a00 100644
--- a/sound/soc/davinci/davinci-pcm.c
+++ b/sound/soc/davinci/davinci-pcm.c
@@ -238,7 +238,7 @@ static void davinci_pcm_dma_irq(unsigned link, u16 ch_status, void *data)
 	print_buf_info(prtd->ram_channel, "i ram_channel");
 	pr_debug("davinci_pcm: link=%d, status=0x%x\n", link, ch_status);
 
-	if (unlikely(ch_status != DMA_COMPLETE))
+	if (unlikely(ch_status != EDMA_DMA_COMPLETE))
 		return;
 
 	if (snd_pcm_running(substream)) {
-- 
cgit 


From c15b149a301ca214ef7ee92e2527b655ad007bb1 Mon Sep 17 00:00:00 2001
From: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Date: Tue, 22 Oct 2013 11:26:48 +0100
Subject: ALSA: compress_core: don't return -EBADFD from poll if paused

Pausing audio playback is not an illegal state so it doesn't
seem sensible for poll() to return -EBADFD on a paused stream.
There's also no reason to assume that we can't write more data
to the DSP while playback is paused. Remove the -EBADFD so that
a stream in paused state will still report the buffer
availability from poll(). It is up to the user process to
manage its state so that it knows whether it is paused or not.

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Acked-by VInod Koul <vinod.koul@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/core/compress_offload.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
index d9af6387f37c..9d518ac73eea 100644
--- a/sound/core/compress_offload.c
+++ b/sound/core/compress_offload.c
@@ -384,8 +384,7 @@ static unsigned int snd_compr_poll(struct file *f, poll_table *wait)
 		return -EFAULT;
 
 	mutex_lock(&stream->device->lock);
-	if (stream->runtime->state == SNDRV_PCM_STATE_PAUSED ||
-			stream->runtime->state == SNDRV_PCM_STATE_OPEN) {
+	if (stream->runtime->state == SNDRV_PCM_STATE_OPEN) {
 		retval = -EBADFD;
 		goto out;
 	}
-- 
cgit 


From 092f9cd16aac7d054af1755c945f37c1b33399e6 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 12 Nov 2013 08:06:20 +0100
Subject: ALSA: msnd: Avoid duplicated driver name

msnd_pinnacle.c is used for both snd-msnd-pinnacle and
snd-msnd-classic drivers, and both should have different driver
names.  Using the same driver name results in the sysfs warning for
duplicated entries like
 kobject: 'msnd-pinnacle.7' (cec33408): kobject_release, parent   (null) (delayed)
 kobject: 'msnd-pinnacle' (cecd4980): kobject_release, parent cf3ad9b0 (delayed)
 ------------[ cut here ]------------
 WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:486 sysfs_warn_dup+0x7d/0xa0()
 sysfs: cannot create duplicate filename '/bus/isa/drivers/msnd-pinnacle'
 ......

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/isa/msnd/msnd_pinnacle.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/isa/msnd/msnd_pinnacle.c b/sound/isa/msnd/msnd_pinnacle.c
index 81aeb934261a..0a90bd6ae232 100644
--- a/sound/isa/msnd/msnd_pinnacle.c
+++ b/sound/isa/msnd/msnd_pinnacle.c
@@ -73,9 +73,11 @@
 #ifdef MSND_CLASSIC
 #  include "msnd_classic.h"
 #  define LOGNAME			"msnd_classic"
+#  define DEV_NAME			"msnd-classic"
 #else
 #  include "msnd_pinnacle.h"
 #  define LOGNAME			"snd_msnd_pinnacle"
+#  define DEV_NAME			"msnd-pinnacle"
 #endif
 
 static void set_default_audio_parameters(struct snd_msnd *chip)
@@ -1067,8 +1069,6 @@ static int snd_msnd_isa_remove(struct device *pdev, unsigned int dev)
 	return 0;
 }
 
-#define DEV_NAME "msnd-pinnacle"
-
 static struct isa_driver snd_msnd_driver = {
 	.match		= snd_msnd_isa_match,
 	.probe		= snd_msnd_isa_probe,
-- 
cgit 


From f8964968ab841cb28b0999f346ee3c2491076257 Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Tue, 22 Oct 2013 12:14:03 +0200
Subject: dma: cppi41: restore more registers

With active users over suspend/resume cycles, it turns out that
more registers, in particular DMA_TDFDQ and RXHPCRA0, have to be
restored on resume.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/cppi41.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c
index 278b3058919a..7a90317d2e7d 100644
--- a/drivers/dma/cppi41.c
+++ b/drivers/dma/cppi41.c
@@ -141,6 +141,9 @@ struct cppi41_dd {
 	const struct chan_queues *queues_rx;
 	const struct chan_queues *queues_tx;
 	struct chan_queues td_queue;
+
+	/* context for suspend/resume */
+	unsigned int dma_tdfdq;
 };
 
 #define FIST_COMPLETION_QUEUE	93
@@ -1050,6 +1053,7 @@ static int cppi41_suspend(struct device *dev)
 {
 	struct cppi41_dd *cdd = dev_get_drvdata(dev);
 
+	cdd->dma_tdfdq = cppi_readl(cdd->ctrl_mem + DMA_TDFDQ);
 	cppi_writel(0, cdd->usbss_mem + USBSS_IRQ_CLEARR);
 	disable_sched(cdd);
 
@@ -1059,12 +1063,23 @@ static int cppi41_suspend(struct device *dev)
 static int cppi41_resume(struct device *dev)
 {
 	struct cppi41_dd *cdd = dev_get_drvdata(dev);
+	struct cppi41_channel *c;
 	int i;
 
 	for (i = 0; i < DESCS_AREAS; i++)
 		cppi_writel(cdd->descs_phys, cdd->qmgr_mem + QMGR_MEMBASE(i));
 
+	list_for_each_entry(c, &cdd->ddev.channels, chan.device_node)
+		if (!c->is_tx)
+			cppi_writel(c->q_num, c->gcr_reg + RXHPCRA0);
+
 	init_sched(cdd);
+
+	cppi_writel(cdd->dma_tdfdq, cdd->ctrl_mem + DMA_TDFDQ);
+	cppi_writel(cdd->scratch_phys, cdd->qmgr_mem + QMGR_LRAM0_BASE);
+	cppi_writel(QMGR_SCRATCH_SIZE, cdd->qmgr_mem + QMGR_LRAM_SIZE);
+	cppi_writel(0, cdd->qmgr_mem + QMGR_LRAM1_BASE);
+
 	cppi_writel(USBSS_IRQ_PD_COMP, cdd->usbss_mem + USBSS_IRQ_ENABLER);
 
 	return 0;
-- 
cgit 


From 706ff628f0669f28e370d2ad30672e5032dc64b2 Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Tue, 22 Oct 2013 12:14:04 +0200
Subject: dma: cppi41: use cppi41_pop_desc() where possible

Use cppi41_pop_desc() when appropriate instead of open-coding the same
functionality again. That makes the code more readable. The function has
to be moved some lines up for this change.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/cppi41.c | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c
index 7a90317d2e7d..2500f60393f4 100644
--- a/drivers/dma/cppi41.c
+++ b/drivers/dma/cppi41.c
@@ -266,6 +266,15 @@ static u32 pd_trans_len(u32 val)
 	return val & ((1 << (DESC_LENGTH_BITS_NUM + 1)) - 1);
 }
 
+static u32 cppi41_pop_desc(struct cppi41_dd *cdd, unsigned queue_num)
+{
+	u32 desc;
+
+	desc = cppi_readl(cdd->qmgr_mem + QMGR_QUEUE_D(queue_num));
+	desc &= ~0x1f;
+	return desc;
+}
+
 static irqreturn_t cppi41_irq(int irq, void *data)
 {
 	struct cppi41_dd *cdd = data;
@@ -303,8 +312,7 @@ static irqreturn_t cppi41_irq(int irq, void *data)
 			q_num = __fls(val);
 			val &= ~(1 << q_num);
 			q_num += 32 * i;
-			desc = cppi_readl(cdd->qmgr_mem + QMGR_QUEUE_D(q_num));
-			desc &= ~0x1f;
+			desc = cppi41_pop_desc(cdd, q_num);
 			c = desc_to_chan(cdd, desc);
 			if (WARN_ON(!c)) {
 				pr_err("%s() q %d desc %08x\n", __func__,
@@ -520,15 +528,6 @@ static void cppi41_compute_td_desc(struct cppi41_desc *d)
 	d->pd0 = DESC_TYPE_TEARD << DESC_TYPE;
 }
 
-static u32 cppi41_pop_desc(struct cppi41_dd *cdd, unsigned queue_num)
-{
-	u32 desc;
-
-	desc = cppi_readl(cdd->qmgr_mem + QMGR_QUEUE_D(queue_num));
-	desc &= ~0x1f;
-	return desc;
-}
-
 static int cppi41_tear_down_chan(struct cppi41_channel *c)
 {
 	struct cppi41_dd *cdd = c->cdd;
@@ -612,7 +611,7 @@ static int cppi41_tear_down_chan(struct cppi41_channel *c)
 
 	WARN_ON(!c->td_retry);
 	if (!c->td_desc_seen) {
-		desc_phys = cppi_readl(cdd->qmgr_mem + QMGR_QUEUE_D(c->q_num));
+		desc_phys = cppi41_pop_desc(cdd, c->q_num);
 		WARN_ON(!desc_phys);
 	}
 
-- 
cgit 


From 1e378a6d7789bf142319c6207398367336c49082 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 22 Oct 2013 12:14:05 +0200
Subject: dma: cppi41: redo descriptor collection in abort case

Most of the logic here is try and error since what actually happens does
not match the trm or I miss read it.
My first assumption was that the queue on which the tear-down descriptor
completes (their own complete queue vs "active descriptor" complete
queue) depends on the transfer direction. This seems not to be true
because I manage to trigger
|  WARN_ON(c->desc_phys != desc_phys);
and the other few were fine means the tear-down descriptor was valid but
on different queue.

This patch changes the logic here to look on both queues for the
descriptor.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/cppi41.c | 42 ++++++++++++++++--------------------------
 1 file changed, 16 insertions(+), 26 deletions(-)

diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c
index 2500f60393f4..ec87492cfb07 100644
--- a/drivers/dma/cppi41.c
+++ b/drivers/dma/cppi41.c
@@ -563,36 +563,26 @@ static int cppi41_tear_down_chan(struct cppi41_channel *c)
 		c->td_retry = 100;
 	}
 
-	if (!c->td_seen) {
-		unsigned td_comp_queue;
+	if (!c->td_seen || !c->td_desc_seen) {
 
-		if (c->is_tx)
-			td_comp_queue =  cdd->td_queue.complete;
-		else
-			td_comp_queue =  c->q_comp_num;
+		desc_phys = cppi41_pop_desc(cdd, cdd->td_queue.complete);
+		if (!desc_phys)
+			desc_phys = cppi41_pop_desc(cdd, c->q_comp_num);
 
-		desc_phys = cppi41_pop_desc(cdd, td_comp_queue);
-		if (desc_phys) {
-			__iormb();
+		if (desc_phys == c->desc_phys) {
+			c->td_desc_seen = 1;
+
+		} else if (desc_phys == td_desc_phys) {
+			u32 pd0;
 
-			if (desc_phys == td_desc_phys) {
-				u32 pd0;
-				pd0 = td->pd0;
-				WARN_ON((pd0 >> DESC_TYPE) != DESC_TYPE_TEARD);
-				WARN_ON(!c->is_tx && !(pd0 & TD_DESC_IS_RX));
-				WARN_ON((pd0 & 0x1f) != c->port_num);
-			} else {
-				WARN_ON_ONCE(1);
-			}
-			c->td_seen = 1;
-		}
-	}
-	if (!c->td_desc_seen) {
-		desc_phys = cppi41_pop_desc(cdd, c->q_comp_num);
-		if (desc_phys) {
 			__iormb();
-			WARN_ON(c->desc_phys != desc_phys);
-			c->td_desc_seen = 1;
+			pd0 = td->pd0;
+			WARN_ON((pd0 >> DESC_TYPE) != DESC_TYPE_TEARD);
+			WARN_ON(!c->is_tx && !(pd0 & TD_DESC_IS_RX));
+			WARN_ON((pd0 & 0x1f) != c->port_num);
+			c->td_seen = 1;
+		} else if (desc_phys) {
+			WARN_ON_ONCE(1);
 		}
 	}
 	c->td_retry--;
-- 
cgit 


From cbf1e56e6aa2fc116a9995d457e8f3cf2be20442 Mon Sep 17 00:00:00 2001
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Tue, 22 Oct 2013 12:14:06 +0200
Subject: dma: cppi41: return code > 0 of pm_runtime_get_sync() is not an error

Return code of pm_runtime_get_sync() > 0 is not an error and may happen.
Noticed during rmmod & modprobe testing.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/cppi41.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/cppi41.c b/drivers/dma/cppi41.c
index ec87492cfb07..c29dacff66fa 100644
--- a/drivers/dma/cppi41.c
+++ b/drivers/dma/cppi41.c
@@ -956,7 +956,7 @@ static int cppi41_dma_probe(struct platform_device *pdev)
 
 	pm_runtime_enable(dev);
 	ret = pm_runtime_get_sync(dev);
-	if (ret)
+	if (ret < 0)
 		goto err_get_sync;
 
 	cdd->queues_rx = glue_info->queues_rx;
-- 
cgit 


From 5959a6bc1124211a359525d209005abc07b0197b Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Tue, 12 Nov 2013 11:10:57 +0100
Subject: ALSA: hda - Fix Line Out automute on Realtek multifunction jacks

In case there is both a multifunction headset jack and a Line Out
jack, automuting was not working properly from the Line Out jack.
This patch fixes that issue.

Cc: stable@vger.kernel.org (3.10+)
BugLink: https://bugs.launchpad.net/bugs/1250377
Tested-by: Cyrus Lien <cyrus.lien@canonical.com>
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 24d924d563aa..04d1e6be600e 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3344,8 +3344,10 @@ static void alc_update_headset_mode(struct hda_codec *codec)
 	else
 		new_headset_mode = ALC_HEADSET_MODE_HEADPHONE;
 
-	if (new_headset_mode == spec->current_headset_mode)
+	if (new_headset_mode == spec->current_headset_mode) {
+		snd_hda_gen_update_outputs(codec);
 		return;
+	}
 
 	switch (new_headset_mode) {
 	case ALC_HEADSET_MODE_UNPLUGGED:
-- 
cgit 


From 468ac413045af1e0e4d1272291bed6878f248a69 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 12 Nov 2013 11:36:00 +0100
Subject: ALSA: hda - Check keep_eapd_on before inv_eapd

We don't change the EAPD bit in set_pin_eapd() if keep_eapd_on flag is
set by the codec driver and enable is false.  But, we also apply the
flipping of enable value according to inv_eapd flag in the same
function, and this confused the former check, handled as if it's
turned ON.  The inverted EAPD check must be applied after keep_eapd_on
check, instead.

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_generic.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index 276f6e759bac..3067ed4fe3b2 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -796,10 +796,10 @@ static void set_pin_eapd(struct hda_codec *codec, hda_nid_t pin, bool enable)
 	if (spec->own_eapd_ctl ||
 	    !(snd_hda_query_pin_caps(codec, pin) & AC_PINCAP_EAPD))
 		return;
-	if (codec->inv_eapd)
-		enable = !enable;
 	if (spec->keep_eapd_on && !enable)
 		return;
+	if (codec->inv_eapd)
+		enable = !enable;
 	snd_hda_codec_update_cache(codec, pin, 0,
 				   AC_VERB_SET_EAPD_BTLENABLE,
 				   enable ? 0x02 : 0x00);
-- 
cgit 


From f4cdb6b493ec4cc97387e81a1e0c50335ed0b45d Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Tue, 12 Nov 2013 10:52:10 +0000
Subject: ASoC: wm8997: Correct typo in ISRC mux routes

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm8997.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wm8997.c b/sound/soc/codecs/wm8997.c
index 6ec3de3efa4f..2e886caf44de 100644
--- a/sound/soc/codecs/wm8997.c
+++ b/sound/soc/codecs/wm8997.c
@@ -887,7 +887,7 @@ static const struct snd_soc_dapm_route wm8997_dapm_routes[] = {
 	ARIZONA_MIXER_ROUTES("Mic Mute Mixer", "Mic"),
 
 	ARIZONA_MUX_ROUTES("ISRC1INT1", "ISRC1INT1"),
-	ARIZONA_MUX_ROUTES("ISRC1INT2", "ISRC2INT2"),
+	ARIZONA_MUX_ROUTES("ISRC1INT2", "ISRC1INT2"),
 
 	ARIZONA_MUX_ROUTES("ISRC1DEC1", "ISRC1DEC1"),
 	ARIZONA_MUX_ROUTES("ISRC1DEC2", "ISRC1DEC2"),
-- 
cgit 


From 73faab3a421351c342b10b0177fec9eea1a1d809 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Tue, 12 Nov 2013 15:24:59 +0900
Subject: perf trace: Beautify fifth argument of mmap() as fd

The fifth argument of mmap syscall is fd and it often contains -1 as a
value for anon mappings.  Without this patch it doesn't show the file
name as well as it shows -1 as 4294967295.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1384237500-22991-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index c3008b1c369c..aeb6296a76bd 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -951,7 +951,8 @@ static struct syscall_fmt {
 	{ .name	    = "mmap",	    .hexret = true,
 	  .arg_scnprintf = { [0] = SCA_HEX,	  /* addr */
 			     [2] = SCA_MMAP_PROT, /* prot */
-			     [3] = SCA_MMAP_FLAGS, /* flags */ }, },
+			     [3] = SCA_MMAP_FLAGS, /* flags */
+			     [4] = SCA_FD, 	  /* fd */ }, },
 	{ .name	    = "mprotect",   .errmsg = true,
 	  .arg_scnprintf = { [0] = SCA_HEX, /* start */
 			     [2] = SCA_MMAP_PROT, /* prot */ }, },
-- 
cgit 


From 96695d440242aca871ef8d797bd98d9cbd7ad8a0 Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung@kernel.org>
Date: Tue, 12 Nov 2013 08:51:45 -0300
Subject: perf trace: Separate tp syscall field caching into init routine to be
 reused

We need to set this in evsels coming out of a perf.data file header, not
just for new ones created for live sessions.

So separate the code that caches the syscall entry/exit tracepoint
format fields into a new function that will be used in the next
changeset.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/20131112115700.GC4053@ghostprotocols.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 28 ++++++++++++++++++++--------
 1 file changed, 20 insertions(+), 8 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index aeb6296a76bd..3fa1dce6d43e 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -149,20 +149,32 @@ static void perf_evsel__delete_priv(struct perf_evsel *evsel)
 	perf_evsel__delete(evsel);
 }
 
+static int perf_evsel__init_syscall_tp(struct perf_evsel *evsel, void *handler)
+{
+	evsel->priv = malloc(sizeof(struct syscall_tp));
+	if (evsel->priv != NULL) {
+		if (perf_evsel__init_sc_tp_uint_field(evsel, id))
+			goto out_delete;
+
+		evsel->handler = handler;
+		return 0;
+	}
+
+	return -ENOMEM;
+
+out_delete:
+	free(evsel->priv);
+	evsel->priv = NULL;
+	return -ENOENT;
+}
+
 static struct perf_evsel *perf_evsel__syscall_newtp(const char *direction, void *handler)
 {
 	struct perf_evsel *evsel = perf_evsel__newtp("raw_syscalls", direction);
 
 	if (evsel) {
-		evsel->priv = malloc(sizeof(struct syscall_tp));
-
-		if (evsel->priv == NULL)
+		if (perf_evsel__init_syscall_tp(evsel, handler))
 			goto out_delete;
-
-		if (perf_evsel__init_sc_tp_uint_field(evsel, id))
-			goto out_delete;
-
-		evsel->handler = handler;
 	}
 
 	return evsel;
-- 
cgit 


From 003824e8c27eeb8d3eec54cfab5845ec01ab532e Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Tue, 12 Nov 2013 15:25:00 +0900
Subject: perf trace: Fix segfault on perf trace -i perf.data

When replaying a previous record session, it'll get a segfault since it
doesn't initialize raw_syscalls enter/exit tracepoint's evsel->priv for
caching the format fields.

So fix it by properly initializing sys_enter/exit evsels that comes from
reading the perf.data file header.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1384237500-22991-2-git-send-email-namhyung@kernel.org
[ Split the syscall tp field caching part in the previous patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 37 +++++++++++++++++++++----------------
 1 file changed, 21 insertions(+), 16 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 3fa1dce6d43e..8d6ea8fbf476 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1766,16 +1766,6 @@ static int trace__process_sample(struct perf_tool *tool,
 	return err;
 }
 
-static bool
-perf_session__has_tp(struct perf_session *session, const char *name)
-{
-	struct perf_evsel *evsel;
-
-	evsel = perf_evlist__find_tracepoint_by_name(session->evlist, name);
-
-	return evsel != NULL;
-}
-
 static int parse_target_str(struct trace *trace)
 {
 	if (trace->opts.target.pid) {
@@ -2012,8 +2002,6 @@ out_error:
 static int trace__replay(struct trace *trace)
 {
 	const struct perf_evsel_str_handler handlers[] = {
-		{ "raw_syscalls:sys_enter",  trace__sys_enter, },
-		{ "raw_syscalls:sys_exit",   trace__sys_exit, },
 		{ "probe:vfs_getname",	     trace__vfs_getname, },
 	};
 	struct perf_data_file file = {
@@ -2021,6 +2009,7 @@ static int trace__replay(struct trace *trace)
 		.mode  = PERF_DATA_MODE_READ,
 	};
 	struct perf_session *session;
+	struct perf_evsel *evsel;
 	int err = -1;
 
 	trace->tool.sample	  = trace__process_sample;
@@ -2052,13 +2041,29 @@ static int trace__replay(struct trace *trace)
 	if (err)
 		goto out;
 
-	if (!perf_session__has_tp(session, "raw_syscalls:sys_enter")) {
-		pr_err("Data file does not have raw_syscalls:sys_enter events\n");
+	evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
+						     "raw_syscalls:sys_enter");
+	if (evsel == NULL) {
+		pr_err("Data file does not have raw_syscalls:sys_enter event\n");
+		goto out;
+	}
+
+	if (perf_evsel__init_syscall_tp(evsel, trace__sys_enter) < 0 ||
+	    perf_evsel__init_sc_tp_ptr_field(evsel, args)) {
+		pr_err("Error during initialize raw_syscalls:sys_enter event\n");
+		goto out;
+	}
+
+	evsel = perf_evlist__find_tracepoint_by_name(session->evlist,
+						     "raw_syscalls:sys_exit");
+	if (evsel == NULL) {
+		pr_err("Data file does not have raw_syscalls:sys_exit event\n");
 		goto out;
 	}
 
-	if (!perf_session__has_tp(session, "raw_syscalls:sys_exit")) {
-		pr_err("Data file does not have raw_syscalls:sys_exit events\n");
+	if (perf_evsel__init_syscall_tp(evsel, trace__sys_exit) < 0 ||
+	    perf_evsel__init_sc_tp_uint_field(evsel, ret)) {
+		pr_err("Error during initialize raw_syscalls:sys_exit event\n");
 		goto out;
 	}
 
-- 
cgit 


From 3fe2130523b2e098085eb4d38cd5b737a97cbee6 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 12 Nov 2013 11:45:21 -0300
Subject: perf tests: Compensate lower sample freq with longer test loop

Doesn't work for me:

./perf test -v 19
19: Test software clock events have valid period values    :
--- start ---
mmap size 528384B
mmap size 528384B
All (0) samples have period value of 1!
---- end ----
Test software clock events have valid period values: FAILED!

Compensate the lower freq introduced in 67c1e4a53b17 with a longer loop,

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/5281D3B8.2030104@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/tests/sw-clock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/tests/sw-clock.c b/tools/perf/tests/sw-clock.c
index 93a7139ff5f7..6664a7cd828c 100644
--- a/tools/perf/tests/sw-clock.c
+++ b/tools/perf/tests/sw-clock.c
@@ -9,7 +9,7 @@
 #include "util/cpumap.h"
 #include "util/thread_map.h"
 
-#define NR_LOOPS  1000000
+#define NR_LOOPS  10000000
 
 /*
  * This test will open software clock events (cpu-clock, task-clock)
-- 
cgit 


From 7f7a4138c66e857cc5bbf6e248a47379765349b5 Mon Sep 17 00:00:00 2001
From: Pekka Enberg <penberg@kernel.org>
Date: Tue, 12 Nov 2013 16:10:10 +0200
Subject: perf trace: Change syscall summary duration order

Switch duration order to minimum, average, maximum for the '--summary'
command line option because it's more natural to read.

Signed-off-by: Pekka Enberg <penberg@kernel.org>
Acked-by: David Ahern <dsahern@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Link: http://lkml.kernel.org/r/1384265410-12344-1-git-send-email-penberg@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 8d6ea8fbf476..8990fbeb8b41 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2093,7 +2093,7 @@ static size_t trace__fprintf_threads_header(FILE *fp)
 	printed  = fprintf(fp, "\n _____________________________________________________________________________\n");
 	printed += fprintf(fp, " __)    Summary of events    (__\n\n");
 	printed += fprintf(fp, "              [ task - pid ]     [ events ] [ ratio ]  [ runtime ]\n");
-	printed += fprintf(fp, "                                  syscall  count    min     max    avg  stddev\n");
+	printed += fprintf(fp, "                                  syscall  count    min     avg    max  stddev\n");
 	printed += fprintf(fp, "                                                   msec    msec   msec     %%\n");
 	printed += fprintf(fp, " _____________________________________________________________________________\n\n");
 
@@ -2129,8 +2129,8 @@ static size_t thread__dump_stats(struct thread_trace *ttrace,
 			sc = &trace->syscalls.table[inode->i];
 			printed += fprintf(fp, "%24s  %14s : ", "", sc->name);
 			printed += fprintf(fp, "%5" PRIu64 "  %8.3f  %8.3f",
-					   n, min, max);
-			printed += fprintf(fp, "  %8.3f  %6.2f\n", avg, pct);
+					   n, min, avg);
+			printed += fprintf(fp, "  %8.3f  %6.2f\n", max, pct);
 		}
 
 		inode = intlist__next(inode);
-- 
cgit 


From 99ff7150547382ee612c40d8d6a0670ddec7c9fc Mon Sep 17 00:00:00 2001
From: Pekka Enberg <penberg@kernel.org>
Date: Tue, 12 Nov 2013 16:42:14 +0200
Subject: perf trace: Simplify '--summary' output

The output of 'perf trace --summary' tries to be too cute with
formatting and makes it very hard to read.  Simplify it in the spirit of
"strace -c":

[penberg@localhost libtrading]$ perf trace -a --duration 10000 --summary -- sleep 1
^C
 Summary of events:

 dbus-daemon (555), 10 events, 0.0%, 0.000 msec

                                                    msec/call
   syscall            calls      min      avg      max stddev
   --------------- -------- -------- -------- -------- ------
   sendmsg                2    0.002    0.005    0.008  55.00
   recvmsg                2    0.002    0.003    0.005  44.00
   epoll_wait             1    0.000    0.000    0.000   0.00

 NetworkManager (667), 56 events, 0.0%, 0.000 msec

                                                    msec/call
   syscall            calls      min      avg      max stddev
   --------------- -------- -------- -------- -------- ------
   poll                   2    0.000    0.002    0.003 100.00
   sendmsg               10    0.004    0.007    0.016  15.41
   recvmsg               16    0.002    0.003    0.005   8.24

 zfs-fuse (669), 4 events, 0.0%, 0.000 msec

                                                    msec/call
   syscall            calls      min      avg      max stddev
   --------------- -------- -------- -------- -------- ------
   futex                  2    0.000    0.001    0.002 100.00

Signed-off-by: Pekka Enberg <penberg@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Link: http://lkml.kernel.org/r/1384267334-18953-1-git-send-email-penberg@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 8990fbeb8b41..0964c0cdc982 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2090,12 +2090,7 @@ static size_t trace__fprintf_threads_header(FILE *fp)
 {
 	size_t printed;
 
-	printed  = fprintf(fp, "\n _____________________________________________________________________________\n");
-	printed += fprintf(fp, " __)    Summary of events    (__\n\n");
-	printed += fprintf(fp, "              [ task - pid ]     [ events ] [ ratio ]  [ runtime ]\n");
-	printed += fprintf(fp, "                                  syscall  count    min     avg    max  stddev\n");
-	printed += fprintf(fp, "                                                   msec    msec   msec     %%\n");
-	printed += fprintf(fp, " _____________________________________________________________________________\n\n");
+	printed  = fprintf(fp, "\n Summary of events:\n\n");
 
 	return printed;
 }
@@ -2113,6 +2108,10 @@ static size_t thread__dump_stats(struct thread_trace *ttrace,
 
 	printed += fprintf(fp, "\n");
 
+	printed += fprintf(fp, "                                                    msec/call\n");
+	printed += fprintf(fp, "   syscall            calls      min      avg      max stddev\n");
+	printed += fprintf(fp, "   --------------- -------- -------- -------- -------- ------\n");
+
 	/* each int_node is a syscall */
 	while (inode) {
 		stats = inode->priv;
@@ -2127,10 +2126,10 @@ static size_t thread__dump_stats(struct thread_trace *ttrace,
 			avg /= NSEC_PER_MSEC;
 
 			sc = &trace->syscalls.table[inode->i];
-			printed += fprintf(fp, "%24s  %14s : ", "", sc->name);
-			printed += fprintf(fp, "%5" PRIu64 "  %8.3f  %8.3f",
+			printed += fprintf(fp, "   %-15s", sc->name);
+			printed += fprintf(fp, " %8" PRIu64 " %8.3f %8.3f",
 					   n, min, avg);
-			printed += fprintf(fp, "  %8.3f  %6.2f\n", max, pct);
+			printed += fprintf(fp, " %8.3f %6.2f\n", max, pct);
 		}
 
 		inode = intlist__next(inode);
@@ -2171,10 +2170,10 @@ static int trace__fprintf_one_thread(struct thread *thread, void *priv)
 	else if (ratio > 5.0)
 		color = PERF_COLOR_YELLOW;
 
-	printed += color_fprintf(fp, color, "%20s", thread__comm_str(thread));
-	printed += fprintf(fp, " - %-5d :%11lu   [", thread->tid, ttrace->nr_events);
-	printed += color_fprintf(fp, color, "%5.1f%%", ratio);
-	printed += fprintf(fp, " ] %10.3f ms\n", ttrace->runtime_ms);
+	printed += color_fprintf(fp, color, " %s (%d), ", thread__comm_str(thread), thread->tid);
+	printed += fprintf(fp, "%lu events, ", ttrace->nr_events);
+	printed += color_fprintf(fp, color, "%.1f%%", ratio);
+	printed += fprintf(fp, ", %.3f msec\n", ttrace->runtime_ms);
 	printed += thread__dump_stats(ttrace, trace, fp);
 
 	data->printed += printed;
-- 
cgit 


From f06c3d2bb8e9e6d697ca059556d8de0647e2905d Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Tue, 17 Sep 2013 10:01:02 -0400
Subject: sunrpc: comment typo fix

Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 net/sunrpc/xprtsock.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index ee03d35677d9..940d723d3dff 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -2859,8 +2859,8 @@ static struct rpc_xprt *xs_setup_bc_tcp(struct xprt_create *args)
 	if (args->bc_xprt->xpt_bc_xprt) {
 		/*
 		 * This server connection already has a backchannel
-		 * export; we can't create a new one, as we wouldn't be
-		 * able to match replies based on xid any more.  So,
+		 * transport; we can't create a new one, as we wouldn't
+		 * be able to match replies based on xid any more.  So,
 		 * reuse the already-existing one:
 		 */
 		 return args->bc_xprt->xpt_bc_xprt;
-- 
cgit 


From e17f5d7667c5414b8f12a93ef14aae0824bd2beb Mon Sep 17 00:00:00 2001
From: Tristan Rice <rice@outerearth.net>
Date: Tue, 12 Nov 2013 19:06:23 +0100
Subject: HID: enable Mayflash USB Gamecube Adapter

This is a patch that adds the new Mayflash Gamecube Controller to USB adapter
(ID 1a34:f705 ACRUX) to the ACRUX driver (drivers/hid/hid-axff.c) with full
force feedback support.

Signed-off-by: Tristan Rice <rice@outerearth.net>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-axff.c | 3 ++-
 drivers/hid/hid-core.c | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/hid/hid-axff.c b/drivers/hid/hid-axff.c
index 64ab94a55aa7..a594e478a1e2 100644
--- a/drivers/hid/hid-axff.c
+++ b/drivers/hid/hid-axff.c
@@ -95,7 +95,7 @@ static int axff_init(struct hid_device *hid)
 		}
 	}
 
-	if (field_count < 4) {
+	if (field_count < 4 && hid->product != 0xf705) {
 		hid_err(hid, "not enough fields in the report: %d\n",
 			field_count);
 		return -ENODEV;
@@ -180,6 +180,7 @@ static void ax_remove(struct hid_device *hdev)
 
 static const struct hid_device_id ax_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802), },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0xf705), },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, ax_devices);
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 3dd1217ff1bc..4c2f3b4ffa30 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1602,6 +1602,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0xf705) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
-- 
cgit 


From 7b6b2bc98c0303b7f043ad5b35906f833e56308d Mon Sep 17 00:00:00 2001
From: Mike Snitzer <snitzer@redhat.com>
Date: Tue, 12 Nov 2013 12:17:43 -0500
Subject: dm cache: resolve small nits and improve Documentation

Document passthrough mode, cache shrinking, and cache invalidation.
Also, use strcasecmp() and hlist_unhashed().

Reported-by: Alasdair G Kergon <agk@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
---
 Documentation/device-mapper/cache.txt | 42 ++++++++++++++++++++++++++---------
 drivers/md/dm-cache-policy-mq.c       |  2 +-
 drivers/md/dm-cache-target.c          |  2 +-
 3 files changed, 34 insertions(+), 12 deletions(-)

diff --git a/Documentation/device-mapper/cache.txt b/Documentation/device-mapper/cache.txt
index fc9d2dfb9415..274752f8bdf9 100644
--- a/Documentation/device-mapper/cache.txt
+++ b/Documentation/device-mapper/cache.txt
@@ -86,16 +86,27 @@ If passthrough is selected, useful when the cache contents are not known
 to be coherent with the origin device, then all reads are served from
 the origin device (all reads miss the cache) and all writes are
 forwarded to the origin device; additionally, write hits cause cache
-block invalidates.  Passthrough mode allows a cache device to be
-activated without having to worry about coherency.  Coherency that
-exists is maintained, although the cache will gradually cool as writes
-take place.  If the coherency of the cache can later be verified, or
-established, the cache device can can be transitioned to writethrough or
-writeback mode while still warm.  Otherwise, the cache contents can be
-discarded prior to transitioning to the desired operating mode.
+block invalidates.  To enable passthrough mode the cache must be clean.
+Passthrough mode allows a cache device to be activated without having to
+worry about coherency.  Coherency that exists is maintained, although
+the cache will gradually cool as writes take place.  If the coherency of
+the cache can later be verified, or established through use of the
+"invalidate_cblocks" message, the cache device can be transitioned to
+writethrough or writeback mode while still warm.  Otherwise, the cache
+contents can be discarded prior to transitioning to the desired
+operating mode.
 
 A simple cleaner policy is provided, which will clean (write back) all
-dirty blocks in a cache.  Useful for decommissioning a cache.
+dirty blocks in a cache.  Useful for decommissioning a cache or when
+shrinking a cache.  Shrinking the cache's fast device requires all cache
+blocks, in the area of the cache being removed, to be clean.  If the
+area being removed from the cache still contains dirty blocks the resize
+will fail.  Care must be taken to never reduce the volume used for the
+cache's fast device until the cache is clean.  This is of particular
+importance if writeback mode is used.  Writethrough and passthrough
+modes already maintain a clean cache.  Future support to partially clean
+the cache, above a specified threshold, will allow for keeping the cache
+warm and in writeback mode during resize.
 
 Migration throttling
 --------------------
@@ -174,7 +185,7 @@ Constructor
  block size      : cache unit size in sectors
 
  #feature args   : number of feature arguments passed
- feature args    : writethrough.  (The default is writeback.)
+ feature args    : writethrough or passthrough (The default is writeback.)
 
  policy          : the replacement policy to use
  #policy args    : an even number of arguments corresponding to
@@ -190,6 +201,13 @@ Optional feature arguments are:
 		   back cache block contents later for performance reasons,
 		   so they may differ from the corresponding origin blocks.
 
+   passthrough	 : a degraded mode useful for various cache coherency
+		   situations (e.g., rolling back snapshots of
+		   underlying storage).	 Reads and writes always go to
+		   the origin.	If a write goes to a cached origin
+		   block, then the cache block is invalidated.
+		   To enable passthrough mode the cache must be clean.
+
 A policy called 'default' is always registered.  This is an alias for
 the policy we currently think is giving best all round performance.
 
@@ -247,7 +265,11 @@ E.g.
 
 Invalidation is removing an entry from the cache without writing it
 back.  Cache blocks can be invalidated via the invalidate_cblocks
-message, which takes an arbitrary number of cblock ranges.
+message, which takes an arbitrary number of cblock ranges.  Each cblock
+must be expressed as a decimal value, in the future a variant message
+that takes cblock ranges expressed in hexidecimal may be needed to
+better support efficient invalidation of larger caches.  The cache must
+be in passthrough mode when invalidate_cblocks is used.
 
    invalidate_cblocks [<cblock>|<cblock begin>-<cblock end>]*
 
diff --git a/drivers/md/dm-cache-policy-mq.c b/drivers/md/dm-cache-policy-mq.c
index 7209fab8b8ed..416b7b752a6e 100644
--- a/drivers/md/dm-cache-policy-mq.c
+++ b/drivers/md/dm-cache-policy-mq.c
@@ -310,7 +310,7 @@ static void free_entry(struct entry_pool *ep, struct entry *e)
 static struct entry *epool_find(struct entry_pool *ep, dm_cblock_t cblock)
 {
 	struct entry *e = ep->entries + from_cblock(cblock);
-	return e->hlist.pprev ? e : NULL;
+	return !hlist_unhashed(&e->hlist) ? e : NULL;
 }
 
 static bool epool_empty(struct entry_pool *ep)
diff --git a/drivers/md/dm-cache-target.c b/drivers/md/dm-cache-target.c
index 41e664b474f1..9efcf1059b99 100644
--- a/drivers/md/dm-cache-target.c
+++ b/drivers/md/dm-cache-target.c
@@ -3057,7 +3057,7 @@ static int cache_message(struct dm_target *ti, unsigned argc, char **argv)
 	if (!argc)
 		return -EINVAL;
 
-	if (!strcmp(argv[0], "invalidate_cblocks"))
+	if (!strcasecmp(argv[0], "invalidate_cblocks"))
 		return process_invalidate_cblocks_message(cache, argc - 1, (const char **) argv + 1);
 
 	if (argc != 2)
-- 
cgit 


From 885d71e5838f68d5dbee92ab952cc90ad6c1dc6b Mon Sep 17 00:00:00 2001
From: Huang Shijie <b32955@freescale.com>
Date: Tue, 12 Nov 2013 12:23:08 +0800
Subject: mtd: gpmi: fix the NULL pointer

The imx23 board will check the fingerprint, so it will call the
mx23_check_transcription_stamp. This function will use @chip->buffers->databuf
as its buffer which is allocated in the nand_scan_tail().

Unfortunately, the mx23_check_transcription_stamp is called before the
nand_scan_tail(). So we will meet a NULL pointer bug:

--------------------------------------------------------------------
[    1.150000] NAND device: Manufacturer ID: 0xec, Chip ID: 0xd7 (Samsung NAND 4GiB 3,3V 8-bit), 4096MiB, page size: 4096, OOB size: 8
[    1.160000] Unable to handle kernel NULL pointer dereference at virtual address 000005d0
[    1.170000] pgd = c0004000
[    1.170000] [000005d0] *pgd=00000000
[    1.180000] Internal error: Oops: 5 [#1] ARM
[    1.180000] Modules linked in:
[    1.180000] CPU: 0 PID: 1 Comm: swapper Not tainted 3.12.0 #89
[    1.180000] task: c7440000 ti: c743a000 task.ti: c743a000
[    1.180000] PC is at memcmp+0x10/0x54
[    1.180000] LR is at gpmi_nand_probe+0x42c/0x894
[    1.180000] pc : [<c025fcb0>]    lr : [<c02f6a68>]    psr: 20000053
[    1.180000] sp : c743be2c  ip : 600000d3  fp : ffffffff
[    1.180000] r10: 000005d0  r9 : c02f5f08  r8 : 00000000
[    1.180000] r7 : c75858a8  r6 : c75858a8  r5 : c7585b18  r4 : c7585800
[    1.180000] r3 : 000005d0  r2 : 00000004  r1 : c05c33e4  r0 : 000005d0
[    1.180000] Flags: nzCv  IRQs on  FIQs off  Mode SVC_32  ISA ARM  Segment kernel
[    1.180000] Control: 0005317f  Table: 40004000  DAC: 00000017
[    1.180000] Process swapper (pid: 1, stack limit = 0xc743a1c0)
--------------------------------------------------------------------

This patch rearrange the init procedure:
   Set the NAND_SKIP_BBTSCAN to skip the nand scan firstly, and after we
   set the proper settings, we will call the chip->scan_bbt() manually.

Cc: stable@vger.kernel.org # 3.12
Signed-off-by: Huang Shijie <b32955@freescale.com>
Reported-by: Fabio Estevam <festevam@gmail.com>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
 drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
index c7243dca90fd..dabbc14db563 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c
@@ -1578,8 +1578,6 @@ static int gpmi_set_geometry(struct gpmi_nand_data *this)
 
 static int gpmi_pre_bbt_scan(struct gpmi_nand_data  *this)
 {
-	int ret;
-
 	/* Set up swap_block_mark, must be set before the gpmi_set_geometry() */
 	if (GPMI_IS_MX23(this))
 		this->swap_block_mark = false;
@@ -1587,12 +1585,8 @@ static int gpmi_pre_bbt_scan(struct gpmi_nand_data  *this)
 		this->swap_block_mark = true;
 
 	/* Set up the medium geometry */
-	ret = gpmi_set_geometry(this);
-	if (ret)
-		return ret;
+	return gpmi_set_geometry(this);
 
-	/* NAND boot init, depends on the gpmi_set_geometry(). */
-	return nand_boot_init(this);
 }
 
 static void gpmi_nfc_exit(struct gpmi_nand_data *this)
@@ -1682,10 +1676,16 @@ static int gpmi_nfc_init(struct gpmi_nand_data *this)
 	if (ret)
 		goto err_out;
 
+	chip->options |= NAND_SKIP_BBTSCAN;
 	ret = nand_scan_tail(mtd);
 	if (ret)
 		goto err_out;
 
+	ret = nand_boot_init(this);
+	if (ret)
+		goto err_out;
+	chip->scan_bbt(mtd);
+
 	ppdata.of_node = this->pdev->dev.of_node;
 	ret = mtd_device_parse_register(mtd, NULL, &ppdata, NULL, 0);
 	if (ret)
-- 
cgit 


From fd2eabaf16984bc75695e43f4b76e6f20ed4ea41 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Tue, 12 Nov 2013 09:31:15 -0700
Subject: perf trace: Add summary only option

Per request from Pekka make --summary a summary only option meaning do
not show the individual system calls. Add another option to see all
syscalls along with the summary. In addition use 's' and 'S' as
shortcuts for the options.

Requested-by: Pekka Enberg <penberg@kernel.org>
Signed-off-by: David Ahern <dsahern@gmail.com>
Tested-by: Pekka Enberg <penberg@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Pekka Enberg <penberg@kernel.org>
Link: http://lkml.kernel.org/r/1384273875-3751-1-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-trace.txt | 10 ++++++++--
 tools/perf/builtin-trace.c              | 16 +++++++++++++---
 2 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt
index 7b0497f95a75..fae38d9a44a4 100644
--- a/tools/perf/Documentation/perf-trace.txt
+++ b/tools/perf/Documentation/perf-trace.txt
@@ -93,9 +93,15 @@ the thread executes on the designated CPUs. Default is to monitor all CPUs.
 --comm::
         Show process COMM right beside its ID, on by default, disable with --no-comm.
 
+-s::
 --summary::
-	Show a summary of syscalls by thread with min, max, and average times (in
-    msec) and relative stddev.
+	Show only a summary of syscalls by thread with min, max, and average times
+    (in msec) and relative stddev.
+
+-S::
+--with-summary::
+	Show all syscalls followed by a summary by thread with min, max, and
+    average times (in msec) and relative stddev.
 
 --tool_stats::
 	Show tool stats such as number of times fd->pathname was discovered thru
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 0964c0cdc982..aa5702ffa2cb 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1168,6 +1168,7 @@ struct trace {
 	bool			sched;
 	bool			multiple_threads;
 	bool			summary;
+	bool			summary_only;
 	bool			show_comm;
 	bool			show_tool_stats;
 	double			duration_filter;
@@ -1611,7 +1612,7 @@ static int trace__sys_enter(struct trace *trace, struct perf_evsel *evsel,
 					   args, trace, thread);
 
 	if (!strcmp(sc->name, "exit_group") || !strcmp(sc->name, "exit")) {
-		if (!trace->duration_filter) {
+		if (!trace->duration_filter && !trace->summary_only) {
 			trace__fprintf_entry_head(trace, thread, 1, sample->time, trace->output);
 			fprintf(trace->output, "%-70s\n", ttrace->entry_str);
 		}
@@ -1664,6 +1665,9 @@ static int trace__sys_exit(struct trace *trace, struct perf_evsel *evsel,
 	} else if (trace->duration_filter)
 		goto out;
 
+	if (trace->summary_only)
+		goto out;
+
 	trace__fprintf_entry_head(trace, thread, duration, sample->time, trace->output);
 
 	if (ttrace->entry_pending) {
@@ -2282,8 +2286,10 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
 	OPT_INCR('v', "verbose", &verbose, "be more verbose"),
 	OPT_BOOLEAN('T', "time", &trace.full_time,
 		    "Show full timestamp, not time relative to first start"),
-	OPT_BOOLEAN(0, "summary", &trace.summary,
-		    "Show syscall summary with statistics"),
+	OPT_BOOLEAN('s', "summary", &trace.summary_only,
+		    "Show only syscall summary with statistics"),
+	OPT_BOOLEAN('S', "with-summary", &trace.summary,
+		    "Show all syscalls and summary with statistics"),
 	OPT_END()
 	};
 	int err;
@@ -2294,6 +2300,10 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
 
 	argc = parse_options(argc, argv, trace_options, trace_usage, 0);
 
+	/* summary_only implies summary option, but don't overwrite summary if set */
+	if (trace.summary_only)
+		trace.summary = trace.summary_only;
+
 	if (output_name != NULL) {
 		err = trace__open_output(&trace, output_name);
 		if (err < 0) {
-- 
cgit 


From 8973504be70b2986a2081eeff7d9a4210dec295d Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Tue, 12 Nov 2013 07:46:53 -0700
Subject: perf record: Fix segfault with --no-mmap-pages

Adrian reported a segfault when using --no-out-pages:

$ tools/perf/perf record -vv --no-out-pages uname
Segmentation fault (core dumped)

The same occurs with --no-mmap-pages. Fix by checking that str is
non-NULL before parsing it.

Signed-off-by: David Ahern <dsahern@gmail.com>
Reported-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1384267617-3446-2-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evlist.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 99dc58e5dcc3..3960560f873a 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -719,6 +719,9 @@ int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str,
 		{ .tag  = 0 },
 	};
 
+	if (str == NULL)
+		return -1;
+
 	val = parse_tag_value(str, tags);
 	if (val != (unsigned long) -1) {
 		/* we got file size value */
-- 
cgit 


From 9639837e95db90d056f4683c911717921519320e Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Tue, 12 Nov 2013 07:46:54 -0700
Subject: perf evlist: Round mmap pages to power 2 - v2

Currently perf requires the -m / --mmap_pages option to be a power of 2.

To be more user friendly perf should automatically round this up to the
next power of 2.

Currently:
  $ perf record -m 3 -a -- sleep 1
  --mmap_pages/-m value must be a power of two.sleep: Terminated

With patch:
  $ perf record -m 3 -a -- sleep 1
  rounding mmap pages size to 16384 (4 pages)
  ...

v2: Add bytes units to rounding message per Ingo's request. Other
    suggestions (e.g., prefixing INFO) should be addressed by wrapping
    pr_info to catch all instances.

Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1384267617-3446-3-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evlist.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 3960560f873a..fb4727d3df85 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -710,7 +710,6 @@ int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str,
 {
 	unsigned int *mmap_pages = opt->value;
 	unsigned long pages, val;
-	size_t size;
 	static struct parse_tag tags[] = {
 		{ .tag  = 'B', .mult = 1       },
 		{ .tag  = 'K', .mult = 1 << 10 },
@@ -726,11 +725,6 @@ int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str,
 	if (val != (unsigned long) -1) {
 		/* we got file size value */
 		pages = PERF_ALIGN(val, page_size) / page_size;
-		if (pages < (1UL << 31) && !is_power_of_2(pages)) {
-			pages = next_pow2(pages);
-			pr_info("rounding mmap pages size to %lu (%lu pages)\n",
-				pages * page_size, pages);
-		}
 	} else {
 		/* we got pages count value */
 		char *eptr;
@@ -741,14 +735,14 @@ int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str,
 		}
 	}
 
-	if (pages > UINT_MAX || pages > SIZE_MAX / page_size) {
-		pr_err("--mmap_pages/-m value too big\n");
-		return -1;
+	if (pages < (1UL << 31) && !is_power_of_2(pages)) {
+		pages = next_pow2(pages);
+		pr_info("rounding mmap pages size to %lu bytes (%lu pages)\n",
+			pages * page_size, pages);
 	}
 
-	size = perf_evlist__mmap_size(pages);
-	if (!size) {
-		pr_err("--mmap_pages/-m value must be a power of two.");
+	if (pages > UINT_MAX || pages > SIZE_MAX / page_size) {
+		pr_err("--mmap_pages/-m value too big\n");
 		return -1;
 	}
 
-- 
cgit 


From 33c2dcfdfe7f114cc656bcb4c839f5939d5e60ba Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Tue, 12 Nov 2013 07:46:55 -0700
Subject: perf evlist: Refactor mmap_pages parsing

Logic will be re-used for the out-pages argument for mmap based writes
in perf-record.

Signed-off-by: David Ahern <dsahern@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/r/1384267617-3446-4-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/evlist.c | 39 ++++++++++++++++++++++++++++-----------
 1 file changed, 28 insertions(+), 11 deletions(-)

diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index fb4727d3df85..cb19044601bb 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -705,10 +705,9 @@ static size_t perf_evlist__mmap_size(unsigned long pages)
 	return (pages + 1) * page_size;
 }
 
-int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str,
-				  int unset __maybe_unused)
+static long parse_pages_arg(const char *str, unsigned long min,
+			    unsigned long max)
 {
-	unsigned int *mmap_pages = opt->value;
 	unsigned long pages, val;
 	static struct parse_tag tags[] = {
 		{ .tag  = 'B', .mult = 1       },
@@ -719,7 +718,7 @@ int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str,
 	};
 
 	if (str == NULL)
-		return -1;
+		return -EINVAL;
 
 	val = parse_tag_value(str, tags);
 	if (val != (unsigned long) -1) {
@@ -729,20 +728,38 @@ int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str,
 		/* we got pages count value */
 		char *eptr;
 		pages = strtoul(str, &eptr, 10);
-		if (*eptr != '\0') {
-			pr_err("failed to parse --mmap_pages/-m value\n");
-			return -1;
-		}
+		if (*eptr != '\0')
+			return -EINVAL;
 	}
 
-	if (pages < (1UL << 31) && !is_power_of_2(pages)) {
+	if ((pages == 0) && (min == 0)) {
+		/* leave number of pages at 0 */
+	} else if (pages < (1UL << 31) && !is_power_of_2(pages)) {
+		/* round pages up to next power of 2 */
 		pages = next_pow2(pages);
 		pr_info("rounding mmap pages size to %lu bytes (%lu pages)\n",
 			pages * page_size, pages);
 	}
 
-	if (pages > UINT_MAX || pages > SIZE_MAX / page_size) {
-		pr_err("--mmap_pages/-m value too big\n");
+	if (pages > max)
+		return -EINVAL;
+
+	return pages;
+}
+
+int perf_evlist__parse_mmap_pages(const struct option *opt, const char *str,
+				  int unset __maybe_unused)
+{
+	unsigned int *mmap_pages = opt->value;
+	unsigned long max = UINT_MAX;
+	long pages;
+
+	if (max < SIZE_MAX / page_size)
+		max = SIZE_MAX / page_size;
+
+	pages = parse_pages_arg(str, 1, max);
+	if (pages < 0) {
+		pr_err("Invalid argument for --mmap_pages/-m\n");
 		return -1;
 	}
 
-- 
cgit 


From 48095b721ca54ffa70427185c00473530f4aef06 Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Tue, 12 Nov 2013 09:59:33 +0200
Subject: perf tests: Handle throttle events in 'object code reading' test

Unhandled events cause an error that fails the test, fix it.

Reported-by: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/5281DFE5.3000909@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/tests/code-reading.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index 6d9dc198a200..85d4919dd623 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -275,8 +275,19 @@ static int process_event(struct machine *machine, struct perf_evlist *evlist,
 	if (event->header.type == PERF_RECORD_SAMPLE)
 		return process_sample_event(machine, evlist, event, state);
 
-	if (event->header.type < PERF_RECORD_MAX)
-		return machine__process_event(machine, event, NULL);
+	if (event->header.type == PERF_RECORD_THROTTLE ||
+	    event->header.type == PERF_RECORD_UNTHROTTLE)
+		return 0;
+
+	if (event->header.type < PERF_RECORD_MAX) {
+		int ret;
+
+		ret = machine__process_event(machine, event, NULL);
+		if (ret < 0)
+			pr_debug("machine__process_event failed, event type %u\n",
+				 event->header.type);
+		return ret;
+	}
 
 	return 0;
 }
-- 
cgit 


From 602ad878d41ef097cc9aa2def7830d5bb27a15d8 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue, 12 Nov 2013 16:46:16 -0300
Subject: perf target: Shorten perf_target__ to target__

Getting unwieldly long, for this app domain should be descriptive enough
and the use of __ to separate the class from the method names should
help with avoiding clashes with other code bases.

Reported-by: David Ahern <dsahern@gmail.com>
Suggested-by: Ingo Molnar <mingo@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/20131112113427.GA4053@ghostprotocols.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-kvm.c     |  6 ++---
 tools/perf/builtin-record.c  | 14 ++++++------
 tools/perf/builtin-stat.c    | 21 ++++++++---------
 tools/perf/builtin-top.c     | 14 ++++++------
 tools/perf/builtin-trace.c   | 10 ++++----
 tools/perf/perf.h            |  2 +-
 tools/perf/tests/task-exit.c |  2 +-
 tools/perf/util/evlist.c     | 12 ++++------
 tools/perf/util/evlist.h     |  5 ++--
 tools/perf/util/evsel.c      |  9 ++++----
 tools/perf/util/evsel.h      |  3 +--
 tools/perf/util/machine.c    |  6 ++---
 tools/perf/util/machine.h    |  4 ++--
 tools/perf/util/target.c     | 54 +++++++++++++++++++++-----------------------
 tools/perf/util/target.h     | 44 +++++++++++++++++-------------------
 tools/perf/util/top.c        |  2 +-
 16 files changed, 99 insertions(+), 109 deletions(-)

diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index 346bb5909e3d..f8bf5f244d77 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -1510,13 +1510,13 @@ static int kvm_events_live(struct perf_kvm_stat *kvm,
 	/*
 	 * target related setups
 	 */
-	err = perf_target__validate(&kvm->opts.target);
+	err = target__validate(&kvm->opts.target);
 	if (err) {
-		perf_target__strerror(&kvm->opts.target, err, errbuf, BUFSIZ);
+		target__strerror(&kvm->opts.target, err, errbuf, BUFSIZ);
 		ui__warning("%s", errbuf);
 	}
 
-	if (perf_target__none(&kvm->opts.target))
+	if (target__none(&kvm->opts.target))
 		kvm->opts.target.system_wide = true;
 
 
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 880227eae20f..4d644fe2d5b7 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -506,7 +506,7 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 	 * (apart from group members) have enable_on_exec=1 set,
 	 * so don't spoil it by prematurely enabling them.
 	 */
-	if (!perf_target__none(&opts->target))
+	if (!target__none(&opts->target))
 		perf_evlist__enable(evsel_list);
 
 	/*
@@ -535,7 +535,7 @@ static int __cmd_record(struct perf_record *rec, int argc, const char **argv)
 		 * die with the process and we wait for that. Thus no need to
 		 * disable events in this case.
 		 */
-		if (done && !disabled && !perf_target__none(&opts->target)) {
+		if (done && !disabled && !target__none(&opts->target)) {
 			perf_evlist__disable(evsel_list);
 			disabled = true;
 		}
@@ -906,7 +906,7 @@ int cmd_record(int argc, const char **argv, const char *prefix __maybe_unused)
 
 	argc = parse_options(argc, argv, record_options, record_usage,
 			    PARSE_OPT_STOP_AT_NON_OPTION);
-	if (!argc && perf_target__none(&rec->opts.target))
+	if (!argc && target__none(&rec->opts.target))
 		usage_with_options(record_usage, record_options);
 
 	if (nr_cgroups && !rec->opts.target.system_wide) {
@@ -936,17 +936,17 @@ int cmd_record(int argc, const char **argv, const char *prefix __maybe_unused)
 		goto out_symbol_exit;
 	}
 
-	err = perf_target__validate(&rec->opts.target);
+	err = target__validate(&rec->opts.target);
 	if (err) {
-		perf_target__strerror(&rec->opts.target, err, errbuf, BUFSIZ);
+		target__strerror(&rec->opts.target, err, errbuf, BUFSIZ);
 		ui__warning("%s", errbuf);
 	}
 
-	err = perf_target__parse_uid(&rec->opts.target);
+	err = target__parse_uid(&rec->opts.target);
 	if (err) {
 		int saved_errno = errno;
 
-		perf_target__strerror(&rec->opts.target, err, errbuf, BUFSIZ);
+		target__strerror(&rec->opts.target, err, errbuf, BUFSIZ);
 		ui__error("%s", errbuf);
 
 		err = -saved_errno;
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 0fc1c941a73c..ee0d565f83e3 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -108,7 +108,7 @@ enum {
 
 static struct perf_evlist	*evsel_list;
 
-static struct perf_target	target = {
+static struct target target = {
 	.uid	= UINT_MAX,
 };
 
@@ -294,11 +294,10 @@ static int create_perf_stat_counter(struct perf_evsel *evsel)
 
 	attr->inherit = !no_inherit;
 
-	if (perf_target__has_cpu(&target))
+	if (target__has_cpu(&target))
 		return perf_evsel__open_per_cpu(evsel, perf_evsel__cpus(evsel));
 
-	if (!perf_target__has_task(&target) &&
-	    perf_evsel__is_group_leader(evsel)) {
+	if (!target__has_task(&target) && perf_evsel__is_group_leader(evsel)) {
 		attr->disabled = 1;
 		if (!initial_delay)
 			attr->enable_on_exec = 1;
@@ -1236,7 +1235,7 @@ static void print_stat(int argc, const char **argv)
 			fprintf(output, "\'system wide");
 		else if (target.cpu_list)
 			fprintf(output, "\'CPU(s) %s", target.cpu_list);
-		else if (!perf_target__has_task(&target)) {
+		else if (!target__has_task(&target)) {
 			fprintf(output, "\'%s", argv[0]);
 			for (i = 1; i < argc; i++)
 				fprintf(output, " %s", argv[i]);
@@ -1667,7 +1666,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
 	} else if (big_num_opt == 0) /* User passed --no-big-num */
 		big_num = false;
 
-	if (!argc && perf_target__none(&target))
+	if (!argc && target__none(&target))
 		usage_with_options(stat_usage, options);
 
 	if (run_count < 0) {
@@ -1680,8 +1679,8 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
 	}
 
 	/* no_aggr, cgroup are for system-wide only */
-	if ((aggr_mode != AGGR_GLOBAL || nr_cgroups)
-	     && !perf_target__has_cpu(&target)) {
+	if ((aggr_mode != AGGR_GLOBAL || nr_cgroups) &&
+	    !target__has_cpu(&target)) {
 		fprintf(stderr, "both cgroup and no-aggregation "
 			"modes only available in system-wide mode\n");
 
@@ -1694,14 +1693,14 @@ int cmd_stat(int argc, const char **argv, const char *prefix __maybe_unused)
 	if (add_default_attributes())
 		goto out;
 
-	perf_target__validate(&target);
+	target__validate(&target);
 
 	if (perf_evlist__create_maps(evsel_list, &target) < 0) {
-		if (perf_target__has_task(&target)) {
+		if (target__has_task(&target)) {
 			pr_err("Problems finding threads of monitor\n");
 			parse_options_usage(stat_usage, options, "p", 1);
 			parse_options_usage(NULL, options, "t", 1);
-		} else if (perf_target__has_cpu(&target)) {
+		} else if (target__has_cpu(&target)) {
 			perror("failed to parse CPUs map");
 			parse_options_usage(stat_usage, options, "C", 1);
 			parse_options_usage(NULL, options, "a", 1);
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index 8c520d9fecfc..b8f8e29db332 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -967,7 +967,7 @@ static int __cmd_top(struct perf_top *top)
 	 * XXX 'top' still doesn't start workloads like record, trace, but should,
 	 * so leave the check here.
 	 */
-        if (!perf_target__none(&opts->target))
+        if (!target__none(&opts->target))
                 perf_evlist__enable(top->evlist);
 
 	/* Wait for a minimal set of events before starting the snapshot */
@@ -1053,7 +1053,7 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
 		.sym_pcnt_filter     = 5,
 	};
 	struct perf_record_opts *opts = &top.record_opts;
-	struct perf_target *target = &opts->target;
+	struct target *target = &opts->target;
 	const struct option options[] = {
 	OPT_CALLBACK('e', "event", &top.evlist, "event",
 		     "event selector. use 'perf list' to list available events",
@@ -1169,24 +1169,24 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
 
 	setup_browser(false);
 
-	status = perf_target__validate(target);
+	status = target__validate(target);
 	if (status) {
-		perf_target__strerror(target, status, errbuf, BUFSIZ);
+		target__strerror(target, status, errbuf, BUFSIZ);
 		ui__warning("%s", errbuf);
 	}
 
-	status = perf_target__parse_uid(target);
+	status = target__parse_uid(target);
 	if (status) {
 		int saved_errno = errno;
 
-		perf_target__strerror(target, status, errbuf, BUFSIZ);
+		target__strerror(target, status, errbuf, BUFSIZ);
 		ui__error("%s", errbuf);
 
 		status = -saved_errno;
 		goto out_delete_evlist;
 	}
 
-	if (perf_target__none(target))
+	if (target__none(target))
 		target->system_wide = true;
 
 	if (perf_evlist__create_maps(top.evlist, target) < 0)
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index aa5702ffa2cb..6b230af940e2 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2327,21 +2327,21 @@ int cmd_trace(int argc, const char **argv, const char *prefix __maybe_unused)
 		}
 	}
 
-	err = perf_target__validate(&trace.opts.target);
+	err = target__validate(&trace.opts.target);
 	if (err) {
-		perf_target__strerror(&trace.opts.target, err, bf, sizeof(bf));
+		target__strerror(&trace.opts.target, err, bf, sizeof(bf));
 		fprintf(trace.output, "%s", bf);
 		goto out_close;
 	}
 
-	err = perf_target__parse_uid(&trace.opts.target);
+	err = target__parse_uid(&trace.opts.target);
 	if (err) {
-		perf_target__strerror(&trace.opts.target, err, bf, sizeof(bf));
+		target__strerror(&trace.opts.target, err, bf, sizeof(bf));
 		fprintf(trace.output, "%s", bf);
 		goto out_close;
 	}
 
-	if (!argc && perf_target__none(&trace.opts.target))
+	if (!argc && target__none(&trace.opts.target))
 		trace.opts.target.system_wide = true;
 
 	if (input_name)
diff --git a/tools/perf/perf.h b/tools/perf/perf.h
index 6a587e84fdfe..b079304bd53d 100644
--- a/tools/perf/perf.h
+++ b/tools/perf/perf.h
@@ -248,7 +248,7 @@ enum perf_call_graph_mode {
 };
 
 struct perf_record_opts {
-	struct perf_target target;
+	struct target target;
 	int	     call_graph;
 	bool	     group;
 	bool	     inherit_stat;
diff --git a/tools/perf/tests/task-exit.c b/tools/perf/tests/task-exit.c
index c33d95f9559a..d09ab579119e 100644
--- a/tools/perf/tests/task-exit.c
+++ b/tools/perf/tests/task-exit.c
@@ -28,7 +28,7 @@ int test__task_exit(void)
 	union perf_event *event;
 	struct perf_evsel *evsel;
 	struct perf_evlist *evlist;
-	struct perf_target target = {
+	struct target target = {
 		.uid		= UINT_MAX,
 		.uses_mmap	= true,
 	};
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index cb19044601bb..dc6fa3fbb180 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -811,8 +811,7 @@ int perf_evlist__mmap(struct perf_evlist *evlist, unsigned int pages,
 	return perf_evlist__mmap_per_cpu(evlist, prot, mask);
 }
 
-int perf_evlist__create_maps(struct perf_evlist *evlist,
-			     struct perf_target *target)
+int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target)
 {
 	evlist->threads = thread_map__new_str(target->pid, target->tid,
 					      target->uid);
@@ -820,9 +819,9 @@ int perf_evlist__create_maps(struct perf_evlist *evlist,
 	if (evlist->threads == NULL)
 		return -1;
 
-	if (perf_target__has_task(target))
+	if (target__has_task(target))
 		evlist->cpus = cpu_map__dummy_new();
-	else if (!perf_target__has_cpu(target) && !target->uses_mmap)
+	else if (!target__has_cpu(target) && !target->uses_mmap)
 		evlist->cpus = cpu_map__dummy_new();
 	else
 		evlist->cpus = cpu_map__new(target->cpu_list);
@@ -1031,8 +1030,7 @@ out_err:
 	return err;
 }
 
-int perf_evlist__prepare_workload(struct perf_evlist *evlist,
-				  struct perf_target *target,
+int perf_evlist__prepare_workload(struct perf_evlist *evlist, struct target *target,
 				  const char *argv[], bool pipe_output,
 				  bool want_signal)
 {
@@ -1084,7 +1082,7 @@ int perf_evlist__prepare_workload(struct perf_evlist *evlist,
 		exit(-1);
 	}
 
-	if (perf_target__none(target))
+	if (target__none(target))
 		evlist->threads->map[0] = evlist->workload.pid;
 
 	close(child_ready_pipe[1]);
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index ecaa582f40e2..649d6ea98a84 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -102,7 +102,7 @@ void perf_evlist__config(struct perf_evlist *evlist,
 int perf_record_opts__config(struct perf_record_opts *opts);
 
 int perf_evlist__prepare_workload(struct perf_evlist *evlist,
-				  struct perf_target *target,
+				  struct target *target,
 				  const char *argv[], bool pipe_output,
 				  bool want_signal);
 int perf_evlist__start_workload(struct perf_evlist *evlist);
@@ -134,8 +134,7 @@ static inline void perf_evlist__set_maps(struct perf_evlist *evlist,
 	evlist->threads	= threads;
 }
 
-int perf_evlist__create_maps(struct perf_evlist *evlist,
-			     struct perf_target *target);
+int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target);
 void perf_evlist__delete_maps(struct perf_evlist *evlist);
 int perf_evlist__apply_filters(struct perf_evlist *evlist);
 
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index f95653a639a6..18f7c188ff63 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -645,7 +645,7 @@ void perf_evsel__config(struct perf_evsel *evsel,
 		}
 	}
 
-	if (perf_target__has_cpu(&opts->target))
+	if (target__has_cpu(&opts->target))
 		perf_evsel__set_sample_bit(evsel, CPU);
 
 	if (opts->period)
@@ -653,7 +653,7 @@ void perf_evsel__config(struct perf_evsel *evsel,
 
 	if (!perf_missing_features.sample_id_all &&
 	    (opts->sample_time || !opts->no_inherit ||
-	     perf_target__has_cpu(&opts->target)))
+	     target__has_cpu(&opts->target)))
 		perf_evsel__set_sample_bit(evsel, TIME);
 
 	if (opts->raw_samples) {
@@ -696,7 +696,7 @@ void perf_evsel__config(struct perf_evsel *evsel,
 	 * Setting enable_on_exec for independent events and
 	 * group leaders for traced executed by perf.
 	 */
-	if (perf_target__none(&opts->target) && perf_evsel__is_group_leader(evsel))
+	if (target__none(&opts->target) && perf_evsel__is_group_leader(evsel))
 		attr->enable_on_exec = 1;
 }
 
@@ -2006,8 +2006,7 @@ bool perf_evsel__fallback(struct perf_evsel *evsel, int err,
 	return false;
 }
 
-int perf_evsel__open_strerror(struct perf_evsel *evsel,
-			      struct perf_target *target,
+int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target,
 			      int err, char *msg, size_t size)
 {
 	switch (err) {
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 0178233abd64..f5029653dcd7 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -318,8 +318,7 @@ int perf_evsel__fprintf(struct perf_evsel *evsel,
 
 bool perf_evsel__fallback(struct perf_evsel *evsel, int err,
 			  char *msg, size_t msgsize);
-int perf_evsel__open_strerror(struct perf_evsel *evsel,
-			      struct perf_target *target,
+int perf_evsel__open_strerror(struct perf_evsel *evsel, struct target *target,
 			      int err, char *msg, size_t size);
 
 static inline int perf_evsel__group_idx(struct perf_evsel *evsel)
diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 680700b6d779..0393912d8033 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1396,12 +1396,12 @@ int machine__for_each_thread(struct machine *machine,
 }
 
 int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
-				  struct perf_target *target, struct thread_map *threads,
+				  struct target *target, struct thread_map *threads,
 				  perf_event__handler_t process, bool data_mmap)
 {
-	if (perf_target__has_task(target))
+	if (target__has_task(target))
 		return perf_event__synthesize_thread_map(tool, threads, process, machine, data_mmap);
-	else if (perf_target__has_cpu(target))
+	else if (target__has_cpu(target))
 		return perf_event__synthesize_threads(tool, process, machine, data_mmap);
 	/* command specified */
 	return 0;
diff --git a/tools/perf/util/machine.h b/tools/perf/util/machine.h
index fedd1dfaf715..477133015440 100644
--- a/tools/perf/util/machine.h
+++ b/tools/perf/util/machine.h
@@ -180,10 +180,10 @@ int machine__for_each_thread(struct machine *machine,
 			     void *priv);
 
 int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,
-				  struct perf_target *target, struct thread_map *threads,
+				  struct target *target, struct thread_map *threads,
 				  perf_event__handler_t process, bool data_mmap);
 static inline
-int machine__synthesize_threads(struct machine *machine, struct perf_target *target,
+int machine__synthesize_threads(struct machine *machine, struct target *target,
 				struct thread_map *threads, bool data_mmap)
 {
 	return __machine__synthesize_threads(machine, NULL, target, threads,
diff --git a/tools/perf/util/target.c b/tools/perf/util/target.c
index 065528b7563e..3c778a07b7cc 100644
--- a/tools/perf/util/target.c
+++ b/tools/perf/util/target.c
@@ -13,9 +13,9 @@
 #include <string.h>
 
 
-enum perf_target_errno perf_target__validate(struct perf_target *target)
+enum target_errno target__validate(struct target *target)
 {
-	enum perf_target_errno ret = PERF_ERRNO_TARGET__SUCCESS;
+	enum target_errno ret = TARGET_ERRNO__SUCCESS;
 
 	if (target->pid)
 		target->tid = target->pid;
@@ -23,42 +23,42 @@ enum perf_target_errno perf_target__validate(struct perf_target *target)
 	/* CPU and PID are mutually exclusive */
 	if (target->tid && target->cpu_list) {
 		target->cpu_list = NULL;
-		if (ret == PERF_ERRNO_TARGET__SUCCESS)
-			ret = PERF_ERRNO_TARGET__PID_OVERRIDE_CPU;
+		if (ret == TARGET_ERRNO__SUCCESS)
+			ret = TARGET_ERRNO__PID_OVERRIDE_CPU;
 	}
 
 	/* UID and PID are mutually exclusive */
 	if (target->tid && target->uid_str) {
 		target->uid_str = NULL;
-		if (ret == PERF_ERRNO_TARGET__SUCCESS)
-			ret = PERF_ERRNO_TARGET__PID_OVERRIDE_UID;
+		if (ret == TARGET_ERRNO__SUCCESS)
+			ret = TARGET_ERRNO__PID_OVERRIDE_UID;
 	}
 
 	/* UID and CPU are mutually exclusive */
 	if (target->uid_str && target->cpu_list) {
 		target->cpu_list = NULL;
-		if (ret == PERF_ERRNO_TARGET__SUCCESS)
-			ret = PERF_ERRNO_TARGET__UID_OVERRIDE_CPU;
+		if (ret == TARGET_ERRNO__SUCCESS)
+			ret = TARGET_ERRNO__UID_OVERRIDE_CPU;
 	}
 
 	/* PID and SYSTEM are mutually exclusive */
 	if (target->tid && target->system_wide) {
 		target->system_wide = false;
-		if (ret == PERF_ERRNO_TARGET__SUCCESS)
-			ret = PERF_ERRNO_TARGET__PID_OVERRIDE_SYSTEM;
+		if (ret == TARGET_ERRNO__SUCCESS)
+			ret = TARGET_ERRNO__PID_OVERRIDE_SYSTEM;
 	}
 
 	/* UID and SYSTEM are mutually exclusive */
 	if (target->uid_str && target->system_wide) {
 		target->system_wide = false;
-		if (ret == PERF_ERRNO_TARGET__SUCCESS)
-			ret = PERF_ERRNO_TARGET__UID_OVERRIDE_SYSTEM;
+		if (ret == TARGET_ERRNO__SUCCESS)
+			ret = TARGET_ERRNO__UID_OVERRIDE_SYSTEM;
 	}
 
 	return ret;
 }
 
-enum perf_target_errno perf_target__parse_uid(struct perf_target *target)
+enum target_errno target__parse_uid(struct target *target)
 {
 	struct passwd pwd, *result;
 	char buf[1024];
@@ -66,7 +66,7 @@ enum perf_target_errno perf_target__parse_uid(struct perf_target *target)
 
 	target->uid = UINT_MAX;
 	if (str == NULL)
-		return PERF_ERRNO_TARGET__SUCCESS;
+		return TARGET_ERRNO__SUCCESS;
 
 	/* Try user name first */
 	getpwnam_r(str, &pwd, buf, sizeof(buf), &result);
@@ -79,22 +79,22 @@ enum perf_target_errno perf_target__parse_uid(struct perf_target *target)
 		int uid = strtol(str, &endptr, 10);
 
 		if (*endptr != '\0')
-			return PERF_ERRNO_TARGET__INVALID_UID;
+			return TARGET_ERRNO__INVALID_UID;
 
 		getpwuid_r(uid, &pwd, buf, sizeof(buf), &result);
 
 		if (result == NULL)
-			return PERF_ERRNO_TARGET__USER_NOT_FOUND;
+			return TARGET_ERRNO__USER_NOT_FOUND;
 	}
 
 	target->uid = result->pw_uid;
-	return PERF_ERRNO_TARGET__SUCCESS;
+	return TARGET_ERRNO__SUCCESS;
 }
 
 /*
- * This must have a same ordering as the enum perf_target_errno.
+ * This must have a same ordering as the enum target_errno.
  */
-static const char *perf_target__error_str[] = {
+static const char *target__error_str[] = {
 	"PID/TID switch overriding CPU",
 	"PID/TID switch overriding UID",
 	"UID switch overriding CPU",
@@ -104,7 +104,7 @@ static const char *perf_target__error_str[] = {
 	"Problems obtaining information for user %s",
 };
 
-int perf_target__strerror(struct perf_target *target, int errnum,
+int target__strerror(struct target *target, int errnum,
 			  char *buf, size_t buflen)
 {
 	int idx;
@@ -124,21 +124,19 @@ int perf_target__strerror(struct perf_target *target, int errnum,
 		return 0;
 	}
 
-	if (errnum <  __PERF_ERRNO_TARGET__START ||
-	    errnum >= __PERF_ERRNO_TARGET__END)
+	if (errnum <  __TARGET_ERRNO__START || errnum >= __TARGET_ERRNO__END)
 		return -1;
 
-	idx = errnum - __PERF_ERRNO_TARGET__START;
-	msg = perf_target__error_str[idx];
+	idx = errnum - __TARGET_ERRNO__START;
+	msg = target__error_str[idx];
 
 	switch (errnum) {
-	case PERF_ERRNO_TARGET__PID_OVERRIDE_CPU
-	 ... PERF_ERRNO_TARGET__UID_OVERRIDE_SYSTEM:
+	case TARGET_ERRNO__PID_OVERRIDE_CPU ... TARGET_ERRNO__UID_OVERRIDE_SYSTEM:
 		snprintf(buf, buflen, "%s", msg);
 		break;
 
-	case PERF_ERRNO_TARGET__INVALID_UID:
-	case PERF_ERRNO_TARGET__USER_NOT_FOUND:
+	case TARGET_ERRNO__INVALID_UID:
+	case TARGET_ERRNO__USER_NOT_FOUND:
 		snprintf(buf, buflen, msg, target->uid_str);
 		break;
 
diff --git a/tools/perf/util/target.h b/tools/perf/util/target.h
index a4be8575fda5..89bab7129de4 100644
--- a/tools/perf/util/target.h
+++ b/tools/perf/util/target.h
@@ -4,7 +4,7 @@
 #include <stdbool.h>
 #include <sys/types.h>
 
-struct perf_target {
+struct target {
 	const char   *pid;
 	const char   *tid;
 	const char   *cpu_list;
@@ -14,8 +14,8 @@ struct perf_target {
 	bool	     uses_mmap;
 };
 
-enum perf_target_errno {
-	PERF_ERRNO_TARGET__SUCCESS		= 0,
+enum target_errno {
+	TARGET_ERRNO__SUCCESS		= 0,
 
 	/*
 	 * Choose an arbitrary negative big number not to clash with standard
@@ -24,42 +24,40 @@ enum perf_target_errno {
 	 *
 	 * http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/errno.h.html
 	 */
-	__PERF_ERRNO_TARGET__START		= -10000,
+	__TARGET_ERRNO__START		= -10000,
 
+	/* for target__validate() */
+	TARGET_ERRNO__PID_OVERRIDE_CPU	= __TARGET_ERRNO__START,
+	TARGET_ERRNO__PID_OVERRIDE_UID,
+	TARGET_ERRNO__UID_OVERRIDE_CPU,
+	TARGET_ERRNO__PID_OVERRIDE_SYSTEM,
+	TARGET_ERRNO__UID_OVERRIDE_SYSTEM,
 
-	/* for perf_target__validate() */
-	PERF_ERRNO_TARGET__PID_OVERRIDE_CPU	= __PERF_ERRNO_TARGET__START,
-	PERF_ERRNO_TARGET__PID_OVERRIDE_UID,
-	PERF_ERRNO_TARGET__UID_OVERRIDE_CPU,
-	PERF_ERRNO_TARGET__PID_OVERRIDE_SYSTEM,
-	PERF_ERRNO_TARGET__UID_OVERRIDE_SYSTEM,
+	/* for target__parse_uid() */
+	TARGET_ERRNO__INVALID_UID,
+	TARGET_ERRNO__USER_NOT_FOUND,
 
-	/* for perf_target__parse_uid() */
-	PERF_ERRNO_TARGET__INVALID_UID,
-	PERF_ERRNO_TARGET__USER_NOT_FOUND,
-
-	__PERF_ERRNO_TARGET__END,
+	__TARGET_ERRNO__END,
 };
 
-enum perf_target_errno perf_target__validate(struct perf_target *target);
-enum perf_target_errno perf_target__parse_uid(struct perf_target *target);
+enum target_errno target__validate(struct target *target);
+enum target_errno target__parse_uid(struct target *target);
 
-int perf_target__strerror(struct perf_target *target, int errnum, char *buf,
-			  size_t buflen);
+int target__strerror(struct target *target, int errnum, char *buf, size_t buflen);
 
-static inline bool perf_target__has_task(struct perf_target *target)
+static inline bool target__has_task(struct target *target)
 {
 	return target->tid || target->pid || target->uid_str;
 }
 
-static inline bool perf_target__has_cpu(struct perf_target *target)
+static inline bool target__has_cpu(struct target *target)
 {
 	return target->system_wide || target->cpu_list;
 }
 
-static inline bool perf_target__none(struct perf_target *target)
+static inline bool target__none(struct target *target)
 {
-	return !perf_target__has_task(target) && !perf_target__has_cpu(target);
+	return !target__has_task(target) && !target__has_cpu(target);
 }
 
 #endif /* _PERF_TARGET_H */
diff --git a/tools/perf/util/top.c b/tools/perf/util/top.c
index f857b51b6bde..ce793c7dd23c 100644
--- a/tools/perf/util/top.c
+++ b/tools/perf/util/top.c
@@ -27,7 +27,7 @@ size_t perf_top__header_snprintf(struct perf_top *top, char *bf, size_t size)
 	float ksamples_per_sec;
 	float esamples_percent;
 	struct perf_record_opts *opts = &top->record_opts;
-	struct perf_target *target = &opts->target;
+	struct target *target = &opts->target;
 	size_t ret = 0;
 
 	if (top->samples) {
-- 
cgit 


From 5f01c98859073cb512b01d4fad74b5f4e047be0b Mon Sep 17 00:00:00 2001
From: Jiri Slaby <jslaby@suse.cz>
Date: Fri, 25 Oct 2013 15:06:58 +0200
Subject: x86/dumpstack: Fix printk_address for direct addresses

Consider a kernel crash in a module, simulated the following way:

 static int my_init(void)
 {
         char *map = (void *)0x5;
         *map = 3;
         return 0;
 }
 module_init(my_init);

When we turn off FRAME_POINTERs, the very first instruction in
that function causes a BUG. The problem is that we print IP in
the BUG report using %pB (from printk_address). And %pB
decrements the pointer by one to fix printing addresses of
functions with tail calls.

This was added in commit 71f9e59800e5ad4 ("x86, dumpstack: Use
%pB format specifier for stack trace") to fix the call stack
printouts.

So instead of correct output:

  BUG: unable to handle kernel NULL pointer dereference at 0000000000000005
  IP: [<ffffffffa01ac000>] my_init+0x0/0x10 [pb173]

We get:

  BUG: unable to handle kernel NULL pointer dereference at 0000000000000005
  IP: [<ffffffffa0152000>] 0xffffffffa0151fff

To fix that, we use %pS only for stack addresses printouts (via
newly added printk_stack_address) and %pB for regs->ip (via
printk_address). I.e. we revert to the old behaviour for all
except call stacks. And since from all those reliable is 1, we
remove that parameter from printk_address.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: joe@perches.com
Cc: jirislaby@gmail.com
Link: http://lkml.kernel.org/r/1382706418-8435-1-git-send-email-jslaby@suse.cz
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/include/asm/kdebug.h |  2 +-
 arch/x86/kernel/dumpstack.c   | 11 ++++++++---
 arch/x86/kernel/process_64.c  |  2 +-
 arch/x86/mm/fault.c           |  2 +-
 arch/x86/platform/uv/uv_nmi.c |  2 +-
 5 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/arch/x86/include/asm/kdebug.h b/arch/x86/include/asm/kdebug.h
index 2c37aadcbc35..32ce71375b21 100644
--- a/arch/x86/include/asm/kdebug.h
+++ b/arch/x86/include/asm/kdebug.h
@@ -21,7 +21,7 @@ enum die_val {
 	DIE_NMIUNKNOWN,
 };
 
-extern void printk_address(unsigned long address, int reliable);
+extern void printk_address(unsigned long address);
 extern void die(const char *, struct pt_regs *,long);
 extern int __must_check __die(const char *, struct pt_regs *, long);
 extern void show_trace(struct task_struct *t, struct pt_regs *regs,
diff --git a/arch/x86/kernel/dumpstack.c b/arch/x86/kernel/dumpstack.c
index deb6421c9e69..d9c12d3022a7 100644
--- a/arch/x86/kernel/dumpstack.c
+++ b/arch/x86/kernel/dumpstack.c
@@ -25,12 +25,17 @@ unsigned int code_bytes = 64;
 int kstack_depth_to_print = 3 * STACKSLOTS_PER_LINE;
 static int die_counter;
 
-void printk_address(unsigned long address, int reliable)
+static void printk_stack_address(unsigned long address, int reliable)
 {
 	pr_cont(" [<%p>] %s%pB\n",
 		(void *)address, reliable ? "" : "? ", (void *)address);
 }
 
+void printk_address(unsigned long address)
+{
+	pr_cont(" [<%p>] %pS\n", (void *)address, (void *)address);
+}
+
 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
 static void
 print_ftrace_graph_addr(unsigned long addr, void *data,
@@ -151,7 +156,7 @@ static void print_trace_address(void *data, unsigned long addr, int reliable)
 {
 	touch_nmi_watchdog();
 	printk(data);
-	printk_address(addr, reliable);
+	printk_stack_address(addr, reliable);
 }
 
 static const struct stacktrace_ops print_trace_ops = {
@@ -281,7 +286,7 @@ int __kprobes __die(const char *str, struct pt_regs *regs, long err)
 #else
 	/* Executive summary in case the oops scrolled away */
 	printk(KERN_ALERT "RIP ");
-	printk_address(regs->ip, 1);
+	printk_address(regs->ip);
 	printk(" RSP <%016lx>\n", regs->sp);
 #endif
 	return 0;
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 45ab4d6fc8a7..176ad94e1d57 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -63,7 +63,7 @@ void __show_regs(struct pt_regs *regs, int all)
 	unsigned int ds, cs, es;
 
 	printk(KERN_DEFAULT "RIP: %04lx:[<%016lx>] ", regs->cs & 0xffff, regs->ip);
-	printk_address(regs->ip, 1);
+	printk_address(regs->ip);
 	printk(KERN_DEFAULT "RSP: %04lx:%016lx  EFLAGS: %08lx\n", regs->ss,
 			regs->sp, regs->flags);
 	printk(KERN_DEFAULT "RAX: %016lx RBX: %016lx RCX: %016lx\n",
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 7a517bb41060..e7e1cac74e8d 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -596,7 +596,7 @@ show_fault_oops(struct pt_regs *regs, unsigned long error_code,
 
 	printk(KERN_CONT " at %p\n", (void *) address);
 	printk(KERN_ALERT "IP:");
-	printk_address(regs->ip, 1);
+	printk_address(regs->ip);
 
 	dump_pagetable(address);
 }
diff --git a/arch/x86/platform/uv/uv_nmi.c b/arch/x86/platform/uv/uv_nmi.c
index 2e863ad4a772..8eeccba73130 100644
--- a/arch/x86/platform/uv/uv_nmi.c
+++ b/arch/x86/platform/uv/uv_nmi.c
@@ -399,7 +399,7 @@ static void uv_nmi_dump_cpu_ip(int cpu, struct pt_regs *regs)
 	printk(KERN_DEFAULT "UV: %4d %6d %-32.32s ",
 		cpu, current->pid, current->comm);
 
-	printk_address(regs->ip, 1);
+	printk_address(regs->ip);
 }
 
 /* Dump this cpu's state */
-- 
cgit 


From 0497a9ebaf7ae4d573497b3e053ad4c3d5c9921d Mon Sep 17 00:00:00 2001
From: Steven Rostedt <rostedt@goodmis.org>
Date: Mon, 11 Nov 2013 16:08:10 -0500
Subject: tools lib traceevent: Add direct access to dynamic arrays

Jiri Olsa was writing a plugin for the cfg80211_tx_mlme_mgmt trace
event, and was not able to get the implemented function working.
The event's print fmt looks like:

   "netdev:%s(%d), ftype:0x%.2x", REC->name, REC->ifindex,
            __le16_to_cpup((__le16 *)__get_dynamic_array(frame))

As there's no helper function for __le16_to_cpup(), Jiri was creating one
with a plugin. But unfortunately, it would not work even though he set
up the plugin correctly.

The problem is that the function parameters do not handle the helper
function "__get_dynamic_array()", and that passes in a NULL pointer.

Adding PRINT_DYNAMIC_ARRAY direct support to eval_num_arg() allows the
use of __get_dynamic_array() in function parameters.

Reported-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Tested-by: Jiri Olsa <jolsa@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20131111160810.0ba9df7d@gandalf.local.home
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 8f450adaa9c2..0362d575de7d 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -3435,6 +3435,19 @@ eval_num_arg(void *data, int size, struct event_format *event, struct print_arg
 			goto out_warning_op;
 		}
 		break;
+	case PRINT_DYNAMIC_ARRAY:
+		/* Without [], we pass the address to the dynamic data */
+		offset = pevent_read_number(pevent,
+					    data + arg->dynarray.field->offset,
+					    arg->dynarray.field->size);
+		/*
+		 * The actual length of the dynamic array is stored
+		 * in the top half of the field, and the offset
+		 * is in the bottom half of the 32 bit field.
+		 */
+		offset &= 0xffff;
+		val = (unsigned long long)(data + offset);
+		break;
 	default: /* not sure what to do there */
 		return 0;
 	}
-- 
cgit 


From 11f918d3e2d3861b6931e97b3aa778e4984935aa Mon Sep 17 00:00:00 2001
From: Thomas Renninger <trenn@suse.de>
Date: Tue, 12 Nov 2013 17:39:43 +0100
Subject: x86/microcode/amd: Tone down printk(), don't treat a missing firmware
 file as an error

Do it the same way as done in microcode_intel.c: use pr_debug()
for missing firmware files.

There seem to be CPUs out there for which no microcode update
has been submitted to kernel-firmware repo yet resulting in
scary sounding error messages in dmesg:

  microcode: failed to load file amd-ucode/microcode_amd_fam16h.bin

Signed-off-by: Thomas Renninger <trenn@suse.de>
Acked-by: Borislav Petkov <bp@suse.de>
Cc: <stable@kernel.org>
Link: http://lkml.kernel.org/r/1384274383-43510-1-git-send-email-trenn@suse.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/microcode_amd.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c
index af99f71aeb7f..c3d4cc972eca 100644
--- a/arch/x86/kernel/microcode_amd.c
+++ b/arch/x86/kernel/microcode_amd.c
@@ -431,7 +431,7 @@ static enum ucode_state request_microcode_amd(int cpu, struct device *device,
 		snprintf(fw_name, sizeof(fw_name), "amd-ucode/microcode_amd_fam%.2xh.bin", c->x86);
 
 	if (request_firmware(&fw, (const char *)fw_name, device)) {
-		pr_err("failed to load file %s\n", fw_name);
+		pr_debug("failed to load file %s\n", fw_name);
 		goto out;
 	}
 
-- 
cgit 


From f01b9f73392b48c6cda7c2c66594c73137c776da Mon Sep 17 00:00:00 2001
From: Vu Pham <vu@mellanox.com>
Date: Mon, 11 Nov 2013 19:04:29 +0200
Subject: iser-target: Avoid using FRMR for single dma entry requests

This patch changes isert_reg_rdma_frwr() to not use FRMR for single
dma entry requests from small I/Os, in order to avoid the associated
memory registration overhead.

Using DMA MR is sufficient here for the single dma entry requests,
and addresses a >= v3.12 performance regression.

Signed-off-by: Vu Pham <vu@mellanox.com>
Cc: <stable@vger.kernel.org> # v3.12+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/infiniband/ulp/isert/ib_isert.c | 32 ++++++++++++++++++++------------
 1 file changed, 20 insertions(+), 12 deletions(-)

diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index 27708c3430d5..bbd86e82e042 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -2297,18 +2297,26 @@ isert_reg_rdma_frwr(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 	data_len = min(data_left, rdma_write_max);
 	wr->cur_rdma_length = data_len;
 
-	spin_lock_irqsave(&isert_conn->conn_lock, flags);
-	fr_desc = list_first_entry(&isert_conn->conn_frwr_pool,
-				   struct fast_reg_descriptor, list);
-	list_del(&fr_desc->list);
-	spin_unlock_irqrestore(&isert_conn->conn_lock, flags);
-	wr->fr_desc = fr_desc;
-
-	ret = isert_fast_reg_mr(fr_desc, isert_cmd, isert_conn,
-			  ib_sge, offset, data_len);
-	if (ret) {
-		list_add_tail(&fr_desc->list, &isert_conn->conn_frwr_pool);
-		goto unmap_sg;
+	/* if there is a single dma entry, dma mr is sufficient */
+	if (count == 1) {
+		ib_sge->addr = ib_sg_dma_address(ib_dev, &sg_start[0]);
+		ib_sge->length = ib_sg_dma_len(ib_dev, &sg_start[0]);
+		ib_sge->lkey = isert_conn->conn_mr->lkey;
+		wr->fr_desc = NULL;
+	} else {
+		spin_lock_irqsave(&isert_conn->conn_lock, flags);
+		fr_desc = list_first_entry(&isert_conn->conn_frwr_pool,
+					   struct fast_reg_descriptor, list);
+		list_del(&fr_desc->list);
+		spin_unlock_irqrestore(&isert_conn->conn_lock, flags);
+		wr->fr_desc = fr_desc;
+
+		ret = isert_fast_reg_mr(fr_desc, isert_cmd, isert_conn,
+				  ib_sge, offset, data_len);
+		if (ret) {
+			list_add_tail(&fr_desc->list, &isert_conn->conn_frwr_pool);
+			goto unmap_sg;
+		}
 	}
 
 	return 0;
-- 
cgit 


From 7f7caf6aa74a4f4ad21ebe08bf23b594fce45ca7 Mon Sep 17 00:00:00 2001
From: Andy Grover <agrover@redhat.com>
Date: Mon, 11 Nov 2013 08:59:17 -0800
Subject: target: Pass through I/O topology for block backstores

In addition to block size (already implemented), passing through
alignment offset, logical-to-phys block exponent, I/O granularity and
optimal I/O length will allow initiators to properly handle layout on
LUNs with 4K block sizes.

Tested with various weird values via scsi_debug module.

One thing to look at with this patch is the new block limits values --
instead of granularity 1 optimal 8192, Lio will now be returning whatever
the block device says, which may affect performance.

Signed-off-by: Andy Grover <agrover@redhat.com>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/target_core_iblock.c  | 43 ++++++++++++++++++++++++++++++++++++
 drivers/target/target_core_sbc.c     | 12 +++++++++-
 drivers/target/target_core_spc.c     | 11 +++++++--
 include/target/target_core_backend.h |  5 +++++
 4 files changed, 68 insertions(+), 3 deletions(-)

diff --git a/drivers/target/target_core_iblock.c b/drivers/target/target_core_iblock.c
index b9a3394fe479..c87959f12760 100644
--- a/drivers/target/target_core_iblock.c
+++ b/drivers/target/target_core_iblock.c
@@ -710,6 +710,45 @@ static sector_t iblock_get_blocks(struct se_device *dev)
 	return iblock_emulate_read_cap_with_block_size(dev, bd, q);
 }
 
+static sector_t iblock_get_alignment_offset_lbas(struct se_device *dev)
+{
+	struct iblock_dev *ib_dev = IBLOCK_DEV(dev);
+	struct block_device *bd = ib_dev->ibd_bd;
+	int ret;
+
+	ret = bdev_alignment_offset(bd);
+	if (ret == -1)
+		return 0;
+
+	/* convert offset-bytes to offset-lbas */
+	return ret / bdev_logical_block_size(bd);
+}
+
+static unsigned int iblock_get_lbppbe(struct se_device *dev)
+{
+	struct iblock_dev *ib_dev = IBLOCK_DEV(dev);
+	struct block_device *bd = ib_dev->ibd_bd;
+	int logs_per_phys = bdev_physical_block_size(bd) / bdev_logical_block_size(bd);
+
+	return ilog2(logs_per_phys);
+}
+
+static unsigned int iblock_get_io_min(struct se_device *dev)
+{
+	struct iblock_dev *ib_dev = IBLOCK_DEV(dev);
+	struct block_device *bd = ib_dev->ibd_bd;
+
+	return bdev_io_min(bd);
+}
+
+static unsigned int iblock_get_io_opt(struct se_device *dev)
+{
+	struct iblock_dev *ib_dev = IBLOCK_DEV(dev);
+	struct block_device *bd = ib_dev->ibd_bd;
+
+	return bdev_io_opt(bd);
+}
+
 static struct sbc_ops iblock_sbc_ops = {
 	.execute_rw		= iblock_execute_rw,
 	.execute_sync_cache	= iblock_execute_sync_cache,
@@ -749,6 +788,10 @@ static struct se_subsystem_api iblock_template = {
 	.show_configfs_dev_params = iblock_show_configfs_dev_params,
 	.get_device_type	= sbc_get_device_type,
 	.get_blocks		= iblock_get_blocks,
+	.get_alignment_offset_lbas = iblock_get_alignment_offset_lbas,
+	.get_lbppbe		= iblock_get_lbppbe,
+	.get_io_min		= iblock_get_io_min,
+	.get_io_opt		= iblock_get_io_opt,
 	.get_write_cache	= iblock_get_write_cache,
 };
 
diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c
index 6c17295e8d7c..61a30f0d7583 100644
--- a/drivers/target/target_core_sbc.c
+++ b/drivers/target/target_core_sbc.c
@@ -105,12 +105,22 @@ sbc_emulate_readcapacity_16(struct se_cmd *cmd)
 	buf[9] = (dev->dev_attrib.block_size >> 16) & 0xff;
 	buf[10] = (dev->dev_attrib.block_size >> 8) & 0xff;
 	buf[11] = dev->dev_attrib.block_size & 0xff;
+
+	if (dev->transport->get_lbppbe)
+		buf[13] = dev->transport->get_lbppbe(dev) & 0x0f;
+
+	if (dev->transport->get_alignment_offset_lbas) {
+		u16 lalba = dev->transport->get_alignment_offset_lbas(dev);
+		buf[14] = (lalba >> 8) & 0x3f;
+		buf[15] = lalba & 0xff;
+	}
+
 	/*
 	 * Set Thin Provisioning Enable bit following sbc3r22 in section
 	 * READ CAPACITY (16) byte 14 if emulate_tpu or emulate_tpws is enabled.
 	 */
 	if (dev->dev_attrib.emulate_tpu || dev->dev_attrib.emulate_tpws)
-		buf[14] = 0x80;
+		buf[14] |= 0x80;
 
 	rbuf = transport_kmap_data_sg(cmd);
 	if (rbuf) {
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index 074539558a54..f89a86f29ee3 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -452,6 +452,7 @@ spc_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf)
 	struct se_device *dev = cmd->se_dev;
 	u32 max_sectors;
 	int have_tp = 0;
+	int opt, min;
 
 	/*
 	 * Following spc3r22 section 6.5.3 Block Limits VPD page, when
@@ -475,7 +476,10 @@ spc_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf)
 	/*
 	 * Set OPTIMAL TRANSFER LENGTH GRANULARITY
 	 */
-	put_unaligned_be16(1, &buf[6]);
+	if (dev->transport->get_io_min && (min = dev->transport->get_io_min(dev)))
+		put_unaligned_be16(min / dev->dev_attrib.block_size, &buf[6]);
+	else
+		put_unaligned_be16(1, &buf[6]);
 
 	/*
 	 * Set MAXIMUM TRANSFER LENGTH
@@ -487,7 +491,10 @@ spc_emulate_evpd_b0(struct se_cmd *cmd, unsigned char *buf)
 	/*
 	 * Set OPTIMAL TRANSFER LENGTH
 	 */
-	put_unaligned_be32(dev->dev_attrib.optimal_sectors, &buf[12]);
+	if (dev->transport->get_io_opt && (opt = dev->transport->get_io_opt(dev)))
+		put_unaligned_be32(opt / dev->dev_attrib.block_size, &buf[12]);
+	else
+		put_unaligned_be32(dev->dev_attrib.optimal_sectors, &buf[12]);
 
 	/*
 	 * Exit now if we don't support TP.
diff --git a/include/target/target_core_backend.h b/include/target/target_core_backend.h
index 5ebe21cd5d1c..39e0114d70c5 100644
--- a/include/target/target_core_backend.h
+++ b/include/target/target_core_backend.h
@@ -34,6 +34,11 @@ struct se_subsystem_api {
 	sense_reason_t (*parse_cdb)(struct se_cmd *cmd);
 	u32 (*get_device_type)(struct se_device *);
 	sector_t (*get_blocks)(struct se_device *);
+	sector_t (*get_alignment_offset_lbas)(struct se_device *);
+	/* lbppbe = logical blocks per physical block exponent. see SBC-3 */
+	unsigned int (*get_lbppbe)(struct se_device *);
+	unsigned int (*get_io_min)(struct se_device *);
+	unsigned int (*get_io_opt)(struct se_device *);
 	unsigned char *(*get_sense_buffer)(struct se_cmd *);
 	bool (*get_write_cache)(struct se_device *);
 };
-- 
cgit 


From 0f59cc3fc1c04413eb1368b57f5e806ebd731ef8 Mon Sep 17 00:00:00 2001
From: Andy Grover <agrover@redhat.com>
Date: Mon, 11 Nov 2013 08:59:18 -0800
Subject: target: Core does not need blkdev.h

Target core does not depend on the block layer, only backstores that
use the block layer do.

Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/target_core_rd.c        | 1 -
 drivers/target/target_core_stat.c      | 1 -
 drivers/target/target_core_transport.c | 1 -
 3 files changed, 3 deletions(-)

diff --git a/drivers/target/target_core_rd.c b/drivers/target/target_core_rd.c
index 131327ac7f5b..4ffe5f2ec0e9 100644
--- a/drivers/target/target_core_rd.c
+++ b/drivers/target/target_core_rd.c
@@ -27,7 +27,6 @@
 #include <linux/string.h>
 #include <linux/parser.h>
 #include <linux/timer.h>
-#include <linux/blkdev.h>
 #include <linux/slab.h>
 #include <linux/spinlock.h>
 #include <scsi/scsi.h>
diff --git a/drivers/target/target_core_stat.c b/drivers/target/target_core_stat.c
index 9c642e02cba1..632665c026a8 100644
--- a/drivers/target/target_core_stat.c
+++ b/drivers/target/target_core_stat.c
@@ -32,7 +32,6 @@
 #include <linux/utsname.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
-#include <linux/blkdev.h>
 #include <linux/configfs.h>
 #include <scsi/scsi.h>
 #include <scsi/scsi_device.h>
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index e0669ac9278b..71f79f65bdf3 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -28,7 +28,6 @@
 #include <linux/string.h>
 #include <linux/timer.h>
 #include <linux/slab.h>
-#include <linux/blkdev.h>
 #include <linux/spinlock.h>
 #include <linux/kthread.h>
 #include <linux/in.h>
-- 
cgit 


From 4c47cb197e136912f4eecc68ab9410487f2df831 Mon Sep 17 00:00:00 2001
From: Len Brown <len.brown@intel.com>
Date: Sat, 9 Nov 2013 00:13:16 -0500
Subject: ACPI: delete CONFIG_ACPI_BLACKLIST_YEAR

About 10 years ago, this option was created to help
distros enable ACPI and not get distracted by ACPI
BIOS issues in machines which were deemed old
at that time, eg 1999 and earlier.

After a couple of years, the high volume distros
stopped bothering to set this option, and instead
simply ran in ACPI mode on all systems with an
ACPI BIOS -- regardless of BIOS DMI year.

Recently there have been some ACPI-enabled systems
with no DMI, mandating that CONFIG_ACPI_BLACKLIST_YEAR=0.

So it seems vanishingly unlikely that this option
is helping anybody run a 2013 kernel on a 1998 system,
and now more systems mandate this option be disabled,
so we simplify by deleting it entirely.

Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/Kconfig     | 11 -----------
 drivers/acpi/blacklist.c | 35 -----------------------------------
 2 files changed, 46 deletions(-)

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 6efe2ac6902f..7e5c18a60541 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -251,17 +251,6 @@ config ACPI_INITRD_TABLE_OVERRIDE
 	  initrd, therefore it's safe to say Y.
 	  See Documentation/acpi/initrd_table_override.txt for details
 
-config ACPI_BLACKLIST_YEAR
-	int "Disable ACPI for systems before Jan 1st this year" if X86_32
-	default 0
-	help
-	  Enter a 4-digit year, e.g., 2001, to disable ACPI by default
-	  on platforms with DMI BIOS date before January 1st that year.
-	  "acpi=force" can be used to override this mechanism.
-
-	  Enter 0 to disable this mechanism and allow ACPI to
-	  run by default no matter what the year.  (default)
-
 config ACPI_DEBUG
 	bool "Debug Statements"
 	default n
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index 9515f18898b2..a87958830849 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -75,39 +75,6 @@ static struct acpi_blacklist_item acpi_blacklist[] __initdata = {
 	{""}
 };
 
-#if	CONFIG_ACPI_BLACKLIST_YEAR
-
-static int __init blacklist_by_year(void)
-{
-	int year;
-
-	/* Doesn't exist? Likely an old system */
-	if (!dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL)) {
-		printk(KERN_ERR PREFIX "no DMI BIOS year, "
-			"acpi=force is required to enable ACPI\n" );
-		return 1;
-	}
-	/* 0? Likely a buggy new BIOS */
-	if (year == 0) {
-		printk(KERN_ERR PREFIX "DMI BIOS year==0, "
-			"assuming ACPI-capable machine\n" );
-		return 0;
-	}
-	if (year < CONFIG_ACPI_BLACKLIST_YEAR) {
-		printk(KERN_ERR PREFIX "BIOS age (%d) fails cutoff (%d), "
-		       "acpi=force is required to enable ACPI\n",
-		       year, CONFIG_ACPI_BLACKLIST_YEAR);
-		return 1;
-	}
-	return 0;
-}
-#else
-static inline int blacklist_by_year(void)
-{
-	return 0;
-}
-#endif
-
 int __init acpi_blacklisted(void)
 {
 	int i = 0;
@@ -166,8 +133,6 @@ int __init acpi_blacklisted(void)
 		}
 	}
 
-	blacklisted += blacklist_by_year();
-
 	dmi_check_system(acpi_osi_dmi_table);
 
 	return blacklisted;
-- 
cgit 


From a4d97536a1a20a70a65ded5d445013a3904d5a8d Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Tue, 12 Nov 2013 11:48:19 +0200
Subject: ACPI / LPSS: add ACPI IDs for newer Intel PCHs

Some recent Intel PCHs with LPSS have different ACPI IDs for the LPSS
devices, so add these to the list as well.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpi_lpss.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index fb78bb9ad8f6..242885715331 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -157,6 +157,15 @@ static const struct acpi_device_id acpi_lpss_device_ids[] = {
 	{ "80860F41", (unsigned long)&byt_i2c_dev_desc },
 	{ "INT33B2", },
 
+	{ "INT3430", (unsigned long)&lpt_dev_desc },
+	{ "INT3431", (unsigned long)&lpt_dev_desc },
+	{ "INT3432", (unsigned long)&lpt_dev_desc },
+	{ "INT3433", (unsigned long)&lpt_dev_desc },
+	{ "INT3434", (unsigned long)&lpt_uart_dev_desc },
+	{ "INT3435", (unsigned long)&lpt_uart_dev_desc },
+	{ "INT3436", (unsigned long)&lpt_sdio_dev_desc },
+	{ "INT3437", },
+
 	{ }
 };
 
-- 
cgit 


From fab04b2208dd1d4121319f0096c5a5f4b70abc54 Mon Sep 17 00:00:00 2001
From: Len Brown <len.brown@intel.com>
Date: Sat, 9 Nov 2013 00:30:17 -0500
Subject: intel_idle: Support Intel Atom Processor C2000 Product Family

Support the "Intel(R) Atom(TM) Processor C2000 Product Family",
formerly code-named Avoton.  It is based on the next generation
Intel Atom processor architecture, formerly code-named Silvermont.

Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/idle/intel_idle.c | 24 +++++++++++++++++++++++-
 1 file changed, 23 insertions(+), 1 deletion(-)

diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 3f95a533c1a8..afd3c683c73b 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -1,7 +1,7 @@
 /*
  * intel_idle.c - native hardware idle loop for modern Intel processors
  *
- * Copyright (c) 2010, Intel Corporation.
+ * Copyright (c) 2013, Intel Corporation.
  * Len Brown <len.brown@intel.com>
  *
  * This program is free software; you can redistribute it and/or modify it
@@ -329,6 +329,22 @@ static struct cpuidle_state atom_cstates[] __initdata = {
 	{
 		.enter = NULL }
 };
+static struct cpuidle_state avn_cstates[CPUIDLE_STATE_MAX] = {
+	{
+		.name = "C1-AVN",
+		.desc = "MWAIT 0x00",
+		.flags = MWAIT2flg(0x00) | CPUIDLE_FLAG_TIME_VALID,
+		.exit_latency = 2,
+		.target_residency = 2,
+		.enter = &intel_idle },
+	{
+		.name = "C6-AVN",
+		.desc = "MWAIT 0x51",
+		.flags = MWAIT2flg(0x58) | CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
+		.exit_latency = 15,
+		.target_residency = 45,
+		.enter = &intel_idle },
+};
 
 /**
  * intel_idle
@@ -462,6 +478,11 @@ static const struct idle_cpu idle_cpu_hsw = {
 	.disable_promotion_to_c1e = true,
 };
 
+static const struct idle_cpu idle_cpu_avn = {
+	.state_table = avn_cstates,
+	.disable_promotion_to_c1e = true,
+};
+
 #define ICPU(model, cpu) \
 	{ X86_VENDOR_INTEL, 6, model, X86_FEATURE_MWAIT, (unsigned long)&cpu }
 
@@ -483,6 +504,7 @@ static const struct x86_cpu_id intel_idle_ids[] = {
 	ICPU(0x3f, idle_cpu_hsw),
 	ICPU(0x45, idle_cpu_hsw),
 	ICPU(0x46, idle_cpu_hsw),
+	ICPU(0x4D, idle_cpu_avn),
 	{}
 };
 MODULE_DEVICE_TABLE(x86cpu, intel_idle_ids);
-- 
cgit 


From 144b44b1355df48eac7fee4c7519f4be0aafa4a3 Mon Sep 17 00:00:00 2001
From: Len Brown <len.brown@intel.com>
Date: Sat, 9 Nov 2013 00:30:16 -0500
Subject: tools / power turbostat: Support Silvermont

Support the next generation Intel Atom processor
mirco-architecture, formerly called Silvermont.

The server version, formerly called "Avoton",
is named the "Intel(R) Atom(TM) Processor C2000 Product Family".

The client version, formerly called "Bay Trail",
is named the "Intel Atom Processor Z3000 Series",
as well as various "Intel Pentium Processor"
and "Intel Celeron Processor" brands, depending
on form-factor.

Silvermont has a set of MSRs not far off from NHM,
but the RAPL register set is a sub-set of those previously supported.

Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/x86/include/uapi/asm/msr-index.h |   2 +
 tools/power/x86/turbostat/turbostat.c | 197 ++++++++++++++++++++++++----------
 2 files changed, 143 insertions(+), 56 deletions(-)

diff --git a/arch/x86/include/uapi/asm/msr-index.h b/arch/x86/include/uapi/asm/msr-index.h
index bb0465090ae5..940ed3fd889a 100644
--- a/arch/x86/include/uapi/asm/msr-index.h
+++ b/arch/x86/include/uapi/asm/msr-index.h
@@ -147,6 +147,8 @@
 #define MSR_PP1_ENERGY_STATUS		0x00000641
 #define MSR_PP1_POLICY			0x00000642
 
+#define MSR_CORE_C1_RES			0x00000660
+
 #define MSR_AMD64_MC0_MASK		0xc0010044
 
 #define MSR_IA32_MCx_CTL(x)		(MSR_IA32_MC0_CTL + 4*(x))
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index fe702076ca46..9d77f13c2d25 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -2,7 +2,7 @@
  * turbostat -- show CPU frequency and C-state residency
  * on modern Intel turbo-capable processors.
  *
- * Copyright (c) 2012 Intel Corporation.
+ * Copyright (c) 2013 Intel Corporation.
  * Len Brown <len.brown@intel.com>
  *
  * This program is free software; you can redistribute it and/or modify it
@@ -47,6 +47,8 @@ unsigned int skip_c1;
 unsigned int do_nhm_cstates;
 unsigned int do_snb_cstates;
 unsigned int do_c8_c9_c10;
+unsigned int do_slm_cstates;
+unsigned int use_c1_residency_msr;
 unsigned int has_aperf;
 unsigned int has_epb;
 unsigned int units = 1000000000;	/* Ghz etc */
@@ -81,6 +83,8 @@ double rapl_joule_counter_range;
 #define RAPL_DRAM	(1 << 3)
 #define RAPL_PKG_PERF_STATUS	(1 << 4)
 #define RAPL_DRAM_PERF_STATUS	(1 << 5)
+#define RAPL_PKG_POWER_INFO	(1 << 6)
+#define RAPL_CORE_POLICY	(1 << 7)
 #define	TJMAX_DEFAULT	100
 
 #define MAX(a, b) ((a) > (b) ? (a) : (b))
@@ -96,7 +100,7 @@ struct thread_data {
 	unsigned long long tsc;
 	unsigned long long aperf;
 	unsigned long long mperf;
-	unsigned long long c1;	/* derived */
+	unsigned long long c1;
 	unsigned long long extra_msr64;
 	unsigned long long extra_delta64;
 	unsigned long long extra_msr32;
@@ -266,7 +270,7 @@ void print_header(void)
 		outp += sprintf(outp, "           MSR 0x%03X", extra_msr_offset64);
 	if (do_nhm_cstates)
 		outp += sprintf(outp, "    %%c1");
-	if (do_nhm_cstates)
+	if (do_nhm_cstates && !do_slm_cstates)
 		outp += sprintf(outp, "    %%c3");
 	if (do_nhm_cstates)
 		outp += sprintf(outp, "    %%c6");
@@ -280,9 +284,9 @@ void print_header(void)
 
 	if (do_snb_cstates)
 		outp += sprintf(outp, "   %%pc2");
-	if (do_nhm_cstates)
+	if (do_nhm_cstates && !do_slm_cstates)
 		outp += sprintf(outp, "   %%pc3");
-	if (do_nhm_cstates)
+	if (do_nhm_cstates && !do_slm_cstates)
 		outp += sprintf(outp, "   %%pc6");
 	if (do_snb_cstates)
 		outp += sprintf(outp, "   %%pc7");
@@ -480,7 +484,7 @@ int format_counters(struct thread_data *t, struct core_data *c,
 	if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
 		goto done;
 
-	if (do_nhm_cstates)
+	if (do_nhm_cstates && !do_slm_cstates)
 		outp += sprintf(outp, " %6.2f", 100.0 * c->c3/t->tsc);
 	if (do_nhm_cstates)
 		outp += sprintf(outp, " %6.2f", 100.0 * c->c6/t->tsc);
@@ -499,9 +503,9 @@ int format_counters(struct thread_data *t, struct core_data *c,
 
 	if (do_snb_cstates)
 		outp += sprintf(outp, " %6.2f", 100.0 * p->pc2/t->tsc);
-	if (do_nhm_cstates)
+	if (do_nhm_cstates && !do_slm_cstates)
 		outp += sprintf(outp, " %6.2f", 100.0 * p->pc3/t->tsc);
-	if (do_nhm_cstates)
+	if (do_nhm_cstates && !do_slm_cstates)
 		outp += sprintf(outp, " %6.2f", 100.0 * p->pc6/t->tsc);
 	if (do_snb_cstates)
 		outp += sprintf(outp, " %6.2f", 100.0 * p->pc7/t->tsc);
@@ -648,17 +652,24 @@ delta_thread(struct thread_data *new, struct thread_data *old,
 	}
 
 
-	/*
-	 * As counter collection is not atomic,
-	 * it is possible for mperf's non-halted cycles + idle states
-	 * to exceed TSC's all cycles: show c1 = 0% in that case.
-	 */
-	if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > old->tsc)
-		old->c1 = 0;
-	else {
-		/* normal case, derive c1 */
-		old->c1 = old->tsc - old->mperf - core_delta->c3
+	if (use_c1_residency_msr) {
+		/*
+		 * Some models have a dedicated C1 residency MSR,
+		 * which should be more accurate than the derivation below.
+		 */
+	} else {
+		/*
+		 * As counter collection is not atomic,
+		 * it is possible for mperf's non-halted cycles + idle states
+		 * to exceed TSC's all cycles: show c1 = 0% in that case.
+		 */
+		if ((old->mperf + core_delta->c3 + core_delta->c6 + core_delta->c7) > old->tsc)
+			old->c1 = 0;
+		else {
+			/* normal case, derive c1 */
+			old->c1 = old->tsc - old->mperf - core_delta->c3
 				- core_delta->c6 - core_delta->c7;
+		}
 	}
 
 	if (old->mperf == 0) {
@@ -872,13 +883,21 @@ int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
 		if (get_msr(cpu, extra_msr_offset64, &t->extra_msr64))
 			return -5;
 
+	if (use_c1_residency_msr) {
+		if (get_msr(cpu, MSR_CORE_C1_RES, &t->c1))
+			return -6;
+	}
+
 	/* collect core counters only for 1st thread in core */
 	if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
 		return 0;
 
-	if (do_nhm_cstates) {
+	if (do_nhm_cstates && !do_slm_cstates) {
 		if (get_msr(cpu, MSR_CORE_C3_RESIDENCY, &c->c3))
 			return -6;
+	}
+
+	if (do_nhm_cstates) {
 		if (get_msr(cpu, MSR_CORE_C6_RESIDENCY, &c->c6))
 			return -7;
 	}
@@ -898,7 +917,7 @@ int get_counters(struct thread_data *t, struct core_data *c, struct pkg_data *p)
 	if (!(t->flags & CPU_IS_FIRST_CORE_IN_PACKAGE))
 		return 0;
 
-	if (do_nhm_cstates) {
+	if (do_nhm_cstates && !do_slm_cstates) {
 		if (get_msr(cpu, MSR_PKG_C3_RESIDENCY, &p->pc3))
 			return -9;
 		if (get_msr(cpu, MSR_PKG_C6_RESIDENCY, &p->pc6))
@@ -977,7 +996,7 @@ void print_verbose_header(void)
 		ratio, bclk, ratio * bclk);
 
 	get_msr(0, MSR_IA32_POWER_CTL, &msr);
-	fprintf(stderr, "cpu0: MSR_IA32_POWER_CTL: 0x%08llx (C1E: %sabled)\n",
+	fprintf(stderr, "cpu0: MSR_IA32_POWER_CTL: 0x%08llx (C1E auto-promotion: %sabled)\n",
 		msr, msr & 0x2 ? "EN" : "DIS");
 
 	if (!do_ivt_turbo_ratio_limit)
@@ -1046,25 +1065,28 @@ print_nhm_turbo_ratio_limits:
 
 	switch(msr & 0x7) {
 	case 0:
-		fprintf(stderr, "pc0");
+		fprintf(stderr, do_slm_cstates ? "no pkg states" : "pc0");
 		break;
 	case 1:
-		fprintf(stderr, do_snb_cstates ? "pc2" : "pc0");
+		fprintf(stderr, do_slm_cstates ? "no pkg states" : do_snb_cstates ? "pc2" : "pc0");
 		break;
 	case 2:
-		fprintf(stderr, do_snb_cstates ? "pc6-noret" : "pc3");
+		fprintf(stderr, do_slm_cstates ? "invalid" : do_snb_cstates ? "pc6-noret" : "pc3");
 		break;
 	case 3:
-		fprintf(stderr, "pc6");
+		fprintf(stderr, do_slm_cstates ? "invalid" : "pc6");
 		break;
 	case 4:
-		fprintf(stderr, "pc7");
+		fprintf(stderr, do_slm_cstates ? "pc4" : "pc7");
 		break;
 	case 5:
-		fprintf(stderr, do_snb_cstates ? "pc7s" : "invalid");
+		fprintf(stderr, do_slm_cstates ? "invalid" : do_snb_cstates ? "pc7s" : "invalid");
+		break;
+	case 6:
+		fprintf(stderr, do_slm_cstates ? "pc6" : "invalid");
 		break;
 	case 7:
-		fprintf(stderr, "unlimited");
+		fprintf(stderr, do_slm_cstates ? "pc7" : "unlimited");
 		break;
 	default:
 		fprintf(stderr, "invalid");
@@ -1460,6 +1482,8 @@ int has_nehalem_turbo_ratio_limit(unsigned int family, unsigned int model)
 	case 0x3F:	/* HSW */
 	case 0x45:	/* HSW */
 	case 0x46:	/* HSW */
+	case 0x37:	/* BYT */
+	case 0x4D:	/* AVN */
 		return 1;
 	case 0x2E:	/* Nehalem-EX Xeon - Beckton */
 	case 0x2F:	/* Westmere-EX Xeon - Eagleton */
@@ -1532,14 +1556,33 @@ int print_epb(struct thread_data *t, struct core_data *c, struct pkg_data *p)
 #define	RAPL_POWER_GRANULARITY	0x7FFF	/* 15 bit power granularity */
 #define	RAPL_TIME_GRANULARITY	0x3F /* 6 bit time granularity */
 
+double get_tdp(model)
+{
+	unsigned long long msr;
+
+	if (do_rapl & RAPL_PKG_POWER_INFO)
+		if (!get_msr(0, MSR_PKG_POWER_INFO, &msr))
+			return ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units;
+
+	switch (model) {
+	case 0x37:
+	case 0x4D:
+		return 30.0;
+	default:
+		return 135.0;
+	}
+}
+
+
 /*
  * rapl_probe()
  *
- * sets do_rapl
+ * sets do_rapl, rapl_power_units, rapl_energy_units, rapl_time_units
  */
 void rapl_probe(unsigned int family, unsigned int model)
 {
 	unsigned long long msr;
+	unsigned int time_unit;
 	double tdp;
 
 	if (!genuine_intel)
@@ -1555,11 +1598,15 @@ void rapl_probe(unsigned int family, unsigned int model)
 	case 0x3F:	/* HSW */
 	case 0x45:	/* HSW */
 	case 0x46:	/* HSW */
-		do_rapl = RAPL_PKG | RAPL_CORES | RAPL_GFX;
+		do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_GFX | RAPL_PKG_POWER_INFO;
 		break;
 	case 0x2D:
 	case 0x3E:
-		do_rapl = RAPL_PKG | RAPL_CORES | RAPL_DRAM | RAPL_PKG_PERF_STATUS | RAPL_DRAM_PERF_STATUS;
+		do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_DRAM | RAPL_PKG_PERF_STATUS | RAPL_DRAM_PERF_STATUS | RAPL_PKG_POWER_INFO;
+		break;
+	case 0x37:	/* BYT */
+	case 0x4D:	/* AVN */
+		do_rapl = RAPL_PKG | RAPL_CORES ;
 		break;
 	default:
 		return;
@@ -1570,19 +1617,22 @@ void rapl_probe(unsigned int family, unsigned int model)
 		return;
 
 	rapl_power_units = 1.0 / (1 << (msr & 0xF));
-	rapl_energy_units = 1.0 / (1 << (msr >> 8 & 0x1F));
-	rapl_time_units = 1.0 / (1 << (msr >> 16 & 0xF));
+	if (model == 0x37)
+		rapl_energy_units = 1.0 * (1 << (msr >> 8 & 0x1F)) / 1000000;
+	else
+		rapl_energy_units = 1.0 / (1 << (msr >> 8 & 0x1F));
 
-	/* get TDP to determine energy counter range */
-	if (get_msr(0, MSR_PKG_POWER_INFO, &msr))
-		return;
+	time_unit = msr >> 16 & 0xF;
+	if (time_unit == 0)
+		time_unit = 0xA;
 
-	tdp = ((msr >> 0) & RAPL_POWER_GRANULARITY) * rapl_power_units;
+	rapl_time_units = 1.0 / (1 << (time_unit));
 
-	rapl_joule_counter_range = 0xFFFFFFFF * rapl_energy_units / tdp;
+	tdp = get_tdp(model);
 
+	rapl_joule_counter_range = 0xFFFFFFFF * rapl_energy_units / tdp;
 	if (verbose)
-		fprintf(stderr, "RAPL: %.0f sec. Joule Counter Range\n", rapl_joule_counter_range);
+		fprintf(stderr, "RAPL: %.0f sec. Joule Counter Range, at %.0f Watts\n", rapl_joule_counter_range, tdp);
 
 	return;
 }
@@ -1668,7 +1718,6 @@ int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p)
 {
 	unsigned long long msr;
 	int cpu;
-	double local_rapl_power_units, local_rapl_energy_units, local_rapl_time_units;
 
 	if (!do_rapl)
 		return 0;
@@ -1686,23 +1735,13 @@ int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p)
 	if (get_msr(cpu, MSR_RAPL_POWER_UNIT, &msr))
 		return -1;
 
-	local_rapl_power_units = 1.0 / (1 << (msr & 0xF));
-	local_rapl_energy_units = 1.0 / (1 << (msr >> 8 & 0x1F));
-	local_rapl_time_units = 1.0 / (1 << (msr >> 16 & 0xF));
-
-	if (local_rapl_power_units != rapl_power_units)
-		fprintf(stderr, "cpu%d, ERROR: Power units mis-match\n", cpu);
-	if (local_rapl_energy_units != rapl_energy_units)
-		fprintf(stderr, "cpu%d, ERROR: Energy units mis-match\n", cpu);
-	if (local_rapl_time_units != rapl_time_units)
-		fprintf(stderr, "cpu%d, ERROR: Time units mis-match\n", cpu);
-
 	if (verbose) {
 		fprintf(stderr, "cpu%d: MSR_RAPL_POWER_UNIT: 0x%08llx "
 			"(%f Watts, %f Joules, %f sec.)\n", cpu, msr,
-			local_rapl_power_units, local_rapl_energy_units, local_rapl_time_units);
+			rapl_power_units, rapl_energy_units, rapl_time_units);
 	}
-	if (do_rapl & RAPL_PKG) {
+	if (do_rapl & RAPL_PKG_POWER_INFO) {
+
 		if (get_msr(cpu, MSR_PKG_POWER_INFO, &msr))
                 	return -5;
 
@@ -1714,6 +1753,9 @@ int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p)
 			((msr >> 32) & RAPL_POWER_GRANULARITY) * rapl_power_units,
 			((msr >> 48) & RAPL_TIME_GRANULARITY) * rapl_time_units);
 
+	}
+	if (do_rapl & RAPL_PKG) {
+
 		if (get_msr(cpu, MSR_PKG_POWER_LIMIT, &msr))
 			return -9;
 
@@ -1749,12 +1791,16 @@ int print_rapl(struct thread_data *t, struct core_data *c, struct pkg_data *p)
 
 		print_power_limit_msr(cpu, msr, "DRAM Limit");
 	}
-	if (do_rapl & RAPL_CORES) {
+	if (do_rapl & RAPL_CORE_POLICY) {
 		if (verbose) {
 			if (get_msr(cpu, MSR_PP0_POLICY, &msr))
 				return -7;
 
 			fprintf(stderr, "cpu%d: MSR_PP0_POLICY: %lld\n", cpu, msr & 0xF);
+		}
+	}
+	if (do_rapl & RAPL_CORES) {
+		if (verbose) {
 
 			if (get_msr(cpu, MSR_PP0_POWER_LIMIT, &msr))
 				return -9;
@@ -1813,10 +1859,48 @@ int has_c8_c9_c10(unsigned int family, unsigned int model)
 }
 
 
+int is_slm(unsigned int family, unsigned int model)
+{
+	if (!genuine_intel)
+		return 0;
+	switch (model) {
+	case 0x37:	/* BYT */
+	case 0x4D:	/* AVN */
+		return 1;
+	}
+	return 0;
+}
+
+#define SLM_BCLK_FREQS 5
+double slm_freq_table[SLM_BCLK_FREQS] = { 83.3, 100.0, 133.3, 116.7, 80.0};
+
+double slm_bclk(void)
+{
+	unsigned long long msr = 3;
+	unsigned int i;
+	double freq;
+
+	if (get_msr(0, MSR_FSB_FREQ, &msr))
+		fprintf(stderr, "SLM BCLK: unknown\n");
+
+	i = msr & 0xf;
+	if (i >= SLM_BCLK_FREQS) {
+		fprintf(stderr, "SLM BCLK[%d] invalid\n", i);
+		msr = 3;
+	}
+	freq = slm_freq_table[i];
+
+	fprintf(stderr, "SLM BCLK: %.1f Mhz\n", freq);
+
+	return freq;
+}
+
 double discover_bclk(unsigned int family, unsigned int model)
 {
 	if (is_snb(family, model))
 		return 100.00;
+	else if (is_slm(family, model))
+		return slm_bclk();
 	else
 		return 133.33;
 }
@@ -1873,7 +1957,7 @@ int set_temperature_target(struct thread_data *t, struct core_data *c, struct pk
 		fprintf(stderr, "cpu%d: MSR_IA32_TEMPERATURE_TARGET: 0x%08llx (%d C)\n",
 			cpu, msr, target_c_local);
 
-	if (target_c_local < 85 || target_c_local > 120)
+	if (target_c_local < 85 || target_c_local > 127)
 		goto guess;
 
 	tcc_activation_temp = target_c_local;
@@ -1970,6 +2054,7 @@ void check_cpuid()
 	do_smi = do_nhm_cstates;
 	do_snb_cstates = is_snb(family, model);
 	do_c8_c9_c10 = has_c8_c9_c10(family, model);
+	do_slm_cstates = is_slm(family, model);
 	bclk = discover_bclk(family, model);
 
 	do_nehalem_turbo_ratio_limit = has_nehalem_turbo_ratio_limit(family, model);
@@ -2331,7 +2416,7 @@ int main(int argc, char **argv)
 	cmdline(argc, argv);
 
 	if (verbose)
-		fprintf(stderr, "turbostat v3.4 April 17, 2013"
+		fprintf(stderr, "turbostat v3.5 April 26, 2013"
 			" - Len Brown <lenb@kernel.org>\n");
 
 	turbostat_init();
-- 
cgit 


From 6d7bcb1464a89181ddc4b4584ad6e0c7566ae31b Mon Sep 17 00:00:00 2001
From: Xiaoguang Chen <chenxg@marvell.com>
Date: Fri, 8 Nov 2013 13:23:52 +0800
Subject: cpufreq: conservative: set requested_freq to policy max when it is
 over policy max

When requested_freq is over policy->max, set it to policy->max.
This can help to speed up decreasing frequency.

Signed-off-by: Xiaoguang Chen <chenxg@marvell.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq_conservative.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/cpufreq/cpufreq_conservative.c b/drivers/cpufreq/cpufreq_conservative.c
index 218460fcd2e4..25a70d06c5bf 100644
--- a/drivers/cpufreq/cpufreq_conservative.c
+++ b/drivers/cpufreq/cpufreq_conservative.c
@@ -68,6 +68,9 @@ static void cs_check_cpu(int cpu, unsigned int load)
 
 		dbs_info->requested_freq += get_freq_target(cs_tuners, policy);
 
+		if (dbs_info->requested_freq > policy->max)
+			dbs_info->requested_freq = policy->max;
+
 		__cpufreq_driver_target(policy, dbs_info->requested_freq,
 			CPUFREQ_RELATION_H);
 		return;
-- 
cgit 


From ea309944e226d655d7d4adca9623c575ba786bbe Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Fri, 8 Nov 2013 06:13:51 +0100
Subject: PM / Runtime: Update documentation around probe|remove|suspend

PM core and driver core has changed some behavior regarding use of
runtime PM. Update the documentation accordingly.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 Documentation/power/runtime_pm.txt | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/Documentation/power/runtime_pm.txt b/Documentation/power/runtime_pm.txt
index 0f54333b0ff2..b6ce00b2be9a 100644
--- a/Documentation/power/runtime_pm.txt
+++ b/Documentation/power/runtime_pm.txt
@@ -547,13 +547,11 @@ helper functions described in Section 4.  In that case, pm_runtime_resume()
 should be used.  Of course, for this purpose the device's runtime PM has to be
 enabled earlier by calling pm_runtime_enable().
 
-If the device bus type's or driver's ->probe() callback runs
-pm_runtime_suspend() or pm_runtime_idle() or their asynchronous counterparts,
-they will fail returning -EAGAIN, because the device's usage counter is
-incremented by the driver core before executing ->probe().  Still, it may be
-desirable to suspend the device as soon as ->probe() has finished, so the driver
-core uses pm_runtime_put_sync() to invoke the subsystem-level idle callback for
-the device at that time.
+It may be desirable to suspend the device once ->probe() has finished.
+Therefore the driver core uses the asyncronous pm_request_idle() to submit a
+request to execute the subsystem-level idle callback for the device at that
+time.  A driver that makes use of the runtime autosuspend feature, may want to
+update the last busy mark before returning from ->probe().
 
 Moreover, the driver core prevents runtime PM callbacks from racing with the bus
 notifier callback in __device_release_driver(), which is necessary, because the
@@ -656,7 +654,7 @@ out the following operations:
     __pm_runtime_disable() with 'false' as the second argument for every device
     right before executing the subsystem-level .suspend_late() callback for it.
 
-  * During system resume it calls pm_runtime_enable() and pm_runtime_put_sync()
+  * During system resume it calls pm_runtime_enable() and pm_runtime_put()
     for every device right after executing the subsystem-level .resume_early()
     callback and right after executing the subsystem-level .resume() callback
     for it, respectively.
-- 
cgit 


From c920745e6964bd4b9315a17b018d83fad66010d3 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 18 Sep 2013 11:58:32 -0700
Subject: sparc64: Clean up 64-bit mmap exclusion defines.

Older UltraSPARC chips had an address space hole due to the MMU only
supporting 44-bit virtual addresses.

The top end of this hole also has the same value as the current
definition of PAGE_OFFSET, so this can be confusing.

Consolidate the defines for the userspace mmap exclusion range into
page_64.h and use them in sys_sparc_64.c and hugetlbpage.c

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Bob Picco <bob.picco@oracle.com>
---
 arch/sparc/include/asm/page_64.h | 17 +++++++++++++++--
 arch/sparc/kernel/sys_sparc_64.c |  3 ---
 arch/sparc/mm/hugetlbpage.c      |  2 --
 3 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/arch/sparc/include/asm/page_64.h b/arch/sparc/include/asm/page_64.h
index e15538899f3d..d95931247feb 100644
--- a/arch/sparc/include/asm/page_64.h
+++ b/arch/sparc/include/asm/page_64.h
@@ -93,9 +93,22 @@ typedef unsigned long pgprot_t;
 
 typedef pte_t *pgtable_t;
 
+/* These two values define the virtual address space range in which we
+ * must forbid 64-bit user processes from making mappings.  It
+ * represents the virtual address space hole present in most early
+ * sparc64 chips including UltraSPARC-I.  The next two defines specify
+ * the actual exclusion region we enforce, wherein we use a 4GB red
+ * zone on each side of the VA hole.
+ */
+#define SPARC64_VA_HOLE_TOP	_AC(0xfffff80000000000,UL)
+#define SPARC64_VA_HOLE_BOTTOM	_AC(0x0000080000000000,UL)
+
+#define VA_EXCLUDE_START (SPARC64_VA_HOLE_BOTTOM - (1UL << 32UL))
+#define VA_EXCLUDE_END   (SPARC64_VA_HOLE_TOP + (1UL << 32UL))
+
 #define TASK_UNMAPPED_BASE	(test_thread_flag(TIF_32BIT) ? \
-				 (_AC(0x0000000070000000,UL)) : \
-				 (_AC(0xfffff80000000000,UL) + (1UL << 32UL)))
+				 _AC(0x0000000070000000,UL) : \
+				 VA_EXCLUDE_END)
 
 #include <asm-generic/memory_model.h>
 
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 51561b8b15ba..d05eb9c1d846 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -39,9 +39,6 @@ asmlinkage unsigned long sys_getpagesize(void)
 	return PAGE_SIZE;
 }
 
-#define VA_EXCLUDE_START (0x0000080000000000UL - (1UL << 32UL))
-#define VA_EXCLUDE_END   (0xfffff80000000000UL + (1UL << 32UL))
-
 /* Does addr --> addr+len fall within 4GB of the VA-space hole or
  * overflow past the end of the 64-bit address space?
  */
diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c
index 96399646570a..30963178d7e9 100644
--- a/arch/sparc/mm/hugetlbpage.c
+++ b/arch/sparc/mm/hugetlbpage.c
@@ -21,8 +21,6 @@
 /* Slightly simplified from the non-hugepage variant because by
  * definition we don't have to worry about any page coloring stuff
  */
-#define VA_EXCLUDE_START (0x0000080000000000UL - (1UL << 32UL))
-#define VA_EXCLUDE_END   (0xfffff80000000000UL + (1UL << 32UL))
 
 static unsigned long hugetlb_get_unmapped_area_bottomup(struct file *filp,
 							unsigned long addr,
-- 
cgit 


From 922631b988d8cbb821ebe2c67feffc0b95264894 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 18 Sep 2013 12:00:00 -0700
Subject: sparc64: Use PAGE_OFFSET instead of a magic constant.

This pertains to all of the computations of the kernel fast
TLB miss xor values.

Based upon a patch by Bob Picco.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Bob Picco <bob.picco@oracle.com>
---
 arch/sparc/mm/init_64.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index ed82edad1a39..e295a5b30ac9 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -1722,7 +1722,7 @@ static void __init sun4v_linear_pte_xor_finalize(void)
 #ifndef CONFIG_DEBUG_PAGEALLOC
 	if (cpu_pgsz_mask & HV_PGSZ_MASK_256MB) {
 		kern_linear_pte_xor[1] = (_PAGE_VALID | _PAGE_SZ256MB_4V) ^
-			0xfffff80000000000UL;
+			PAGE_OFFSET;
 		kern_linear_pte_xor[1] |= (_PAGE_CP_4V | _PAGE_CV_4V |
 					   _PAGE_P_4V | _PAGE_W_4V);
 	} else {
@@ -1731,7 +1731,7 @@ static void __init sun4v_linear_pte_xor_finalize(void)
 
 	if (cpu_pgsz_mask & HV_PGSZ_MASK_2GB) {
 		kern_linear_pte_xor[2] = (_PAGE_VALID | _PAGE_SZ2GB_4V) ^
-			0xfffff80000000000UL;
+			PAGE_OFFSET;
 		kern_linear_pte_xor[2] |= (_PAGE_CP_4V | _PAGE_CV_4V |
 					   _PAGE_P_4V | _PAGE_W_4V);
 	} else {
@@ -1740,7 +1740,7 @@ static void __init sun4v_linear_pte_xor_finalize(void)
 
 	if (cpu_pgsz_mask & HV_PGSZ_MASK_16GB) {
 		kern_linear_pte_xor[3] = (_PAGE_VALID | _PAGE_SZ16GB_4V) ^
-			0xfffff80000000000UL;
+			PAGE_OFFSET;
 		kern_linear_pte_xor[3] |= (_PAGE_CP_4V | _PAGE_CV_4V |
 					   _PAGE_P_4V | _PAGE_W_4V);
 	} else {
@@ -2261,10 +2261,10 @@ static void __init sun4u_pgprot_init(void)
 		     __ACCESS_BITS_4U | _PAGE_E_4U);
 
 #ifdef CONFIG_DEBUG_PAGEALLOC
-	kern_linear_pte_xor[0] = _PAGE_VALID ^ 0xfffff80000000000UL;
+	kern_linear_pte_xor[0] = _PAGE_VALID ^ PAGE_OFFSET;
 #else
 	kern_linear_pte_xor[0] = (_PAGE_VALID | _PAGE_SZ4MB_4U) ^
-		0xfffff80000000000UL;
+		PAGE_OFFSET;
 #endif
 	kern_linear_pte_xor[0] |= (_PAGE_CP_4U | _PAGE_CV_4U |
 				   _PAGE_P_4U | _PAGE_W_4U);
@@ -2308,10 +2308,10 @@ static void __init sun4v_pgprot_init(void)
 	_PAGE_CACHE = _PAGE_CACHE_4V;
 
 #ifdef CONFIG_DEBUG_PAGEALLOC
-	kern_linear_pte_xor[0] = _PAGE_VALID ^ 0xfffff80000000000UL;
+	kern_linear_pte_xor[0] = _PAGE_VALID ^ PAGE_OFFSET;
 #else
 	kern_linear_pte_xor[0] = (_PAGE_VALID | _PAGE_SZ4MB_4V) ^
-		0xfffff80000000000UL;
+		PAGE_OFFSET;
 #endif
 	kern_linear_pte_xor[0] |= (_PAGE_CP_4V | _PAGE_CV_4V |
 				   _PAGE_P_4V | _PAGE_W_4V);
-- 
cgit 


From e0a45e3580a033669b24b04c3535515d69bb9702 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 18 Sep 2013 14:22:34 -0700
Subject: sparc64: Define PAGE_OFFSET in terms of physical address bits.

This makes clearer the implications for a given choosen
value.

Based upon patches by Bob Picco.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Bob Picco <bob.picco@oracle.com>
---
 arch/sparc/include/asm/page_64.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/sparc/include/asm/page_64.h b/arch/sparc/include/asm/page_64.h
index d95931247feb..9dd0f7360822 100644
--- a/arch/sparc/include/asm/page_64.h
+++ b/arch/sparc/include/asm/page_64.h
@@ -117,7 +117,9 @@ typedef pte_t *pgtable_t;
 /* We used to stick this into a hard-coded global register (%g4)
  * but that does not make sense anymore.
  */
-#define PAGE_OFFSET		_AC(0xFFFFF80000000000,UL)
+#define MAX_SUPPORTED_PA_BITS	43
+#define PAGE_OFFSET_BY_BITS(X)	(-(_AC(1,UL) << (X)))
+#define PAGE_OFFSET		PAGE_OFFSET_BY_BITS(MAX_SUPPORTED_PA_BITS)
 
 #ifndef __ASSEMBLY__
 
-- 
cgit 


From bb7b435388b9f035ecfb16f42b5c6bf428359c63 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 18 Sep 2013 15:39:06 -0700
Subject: sparc64: Document the shift counts used to validate linear kernel
 addresses.

This way we can see exactly what they are derived from, and in particular
how they would change if we were to use a different PAGE_OFFSET value.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Bob Picco <bob.picco@oracle.com>
---
 arch/sparc/include/asm/page_64.h | 16 ++++++++++++++++
 arch/sparc/kernel/ktlb.S         | 10 +++++-----
 arch/sparc/mm/init_64.h          |  4 +++-
 3 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/arch/sparc/include/asm/page_64.h b/arch/sparc/include/asm/page_64.h
index 9dd0f7360822..978ea6d022e9 100644
--- a/arch/sparc/include/asm/page_64.h
+++ b/arch/sparc/include/asm/page_64.h
@@ -121,6 +121,22 @@ typedef pte_t *pgtable_t;
 #define PAGE_OFFSET_BY_BITS(X)	(-(_AC(1,UL) << (X)))
 #define PAGE_OFFSET		PAGE_OFFSET_BY_BITS(MAX_SUPPORTED_PA_BITS)
 
+/* The "virtual" portion of PAGE_OFFSET, used to clip off the non-physical
+ * bits of a linear kernel address.
+ */
+#define PAGE_OFFSET_VA_BITS	(64 - MAX_SUPPORTED_PA_BITS)
+
+/* The actual number of physical memory address bits we support, this is
+ * used to size various tables used to manage kernel TLB misses.
+ */
+#define MAX_PHYS_ADDRESS_BITS	41
+
+/* These two shift counts are used when indexing sparc64_valid_addr_bitmap
+ * and kpte_linear_bitmap.
+ */
+#define ILOG2_4MB		22
+#define ILOG2_256MB		28
+
 #ifndef __ASSEMBLY__
 
 #define __pa(x)			((unsigned long)(x) - PAGE_OFFSET)
diff --git a/arch/sparc/kernel/ktlb.S b/arch/sparc/kernel/ktlb.S
index fde5a419cf27..7ad46bc0c698 100644
--- a/arch/sparc/kernel/ktlb.S
+++ b/arch/sparc/kernel/ktlb.S
@@ -153,12 +153,12 @@ kvmap_dtlb_tsb4m_miss:
 	/* Clear the PAGE_OFFSET top virtual bits, shift
 	 * down to get PFN, and make sure PFN is in range.
 	 */
-	sllx		%g4, 21, %g5
+	sllx		%g4, PAGE_OFFSET_VA_BITS, %g5
 
 	/* Check to see if we know about valid memory at the 4MB
 	 * chunk this physical address will reside within.
 	 */
-	srlx		%g5, 21 + 41, %g2
+	srlx		%g5, PAGE_OFFSET_VA_BITS + MAX_PHYS_ADDRESS_BITS, %g2
 	brnz,pn		%g2, kvmap_dtlb_longpath
 	 nop
 
@@ -176,7 +176,7 @@ valid_addr_bitmap_patch:
 	or		%g7, %lo(sparc64_valid_addr_bitmap), %g7
 	.previous
 
-	srlx		%g5, 21 + 22, %g2
+	srlx		%g5, PAGE_OFFSET_VA_BITS + ILOG2_4MB, %g2
 	srlx		%g2, 6, %g5
 	and		%g2, 63, %g2
 	sllx		%g5, 3, %g5
@@ -189,9 +189,9 @@ valid_addr_bitmap_patch:
 2:	 sethi		%hi(kpte_linear_bitmap), %g2
 
 	/* Get the 256MB physical address index. */
-	sllx		%g4, 21, %g5
+	sllx		%g4, PAGE_OFFSET_VA_BITS, %g5
 	or		%g2, %lo(kpte_linear_bitmap), %g2
-	srlx		%g5, 21 + 28, %g5
+	srlx		%g5, PAGE_OFFSET_VA_BITS + ILOG2_256MB, %g5
 	and		%g5, (32 - 1), %g7
 
 	/* Divide by 32 to get the offset into the bitmask.  */
diff --git a/arch/sparc/mm/init_64.h b/arch/sparc/mm/init_64.h
index 0661aa606dec..5d3782deb403 100644
--- a/arch/sparc/mm/init_64.h
+++ b/arch/sparc/mm/init_64.h
@@ -1,11 +1,13 @@
 #ifndef _SPARC64_MM_INIT_H
 #define _SPARC64_MM_INIT_H
 
+#include <asm/page.h>
+
 /* Most of the symbols in this file are defined in init.c and
  * marked non-static so that assembler code can get at them.
  */
 
-#define MAX_PHYS_ADDRESS	(1UL << 41UL)
+#define MAX_PHYS_ADDRESS	(1UL << MAX_PHYS_ADDRESS_BITS)
 #define KPTE_BITMAP_CHUNK_SZ		(256UL * 1024UL * 1024UL)
 #define KPTE_BITMAP_BYTES	\
 	((MAX_PHYS_ADDRESS / KPTE_BITMAP_CHUNK_SZ) / 4)
-- 
cgit 


From f998c9c0d663b013e3aa3ba78908396c8c497218 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 18 Sep 2013 18:39:25 -0700
Subject: sparc64: Fix inconsistent max-physical-address defines.

Some parts of the code use '41' others use '42', make them
all use the same value.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Bob Picco <bob.picco@oracle.com>
---
 arch/sparc/include/asm/sparsemem.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/sparc/include/asm/sparsemem.h b/arch/sparc/include/asm/sparsemem.h
index b99d4e4b6d28..e5e1752d5d78 100644
--- a/arch/sparc/include/asm/sparsemem.h
+++ b/arch/sparc/include/asm/sparsemem.h
@@ -3,9 +3,11 @@
 
 #ifdef __KERNEL__
 
+#include <asm/page.h>
+
 #define SECTION_SIZE_BITS       30
-#define MAX_PHYSADDR_BITS       42
-#define MAX_PHYSMEM_BITS        42
+#define MAX_PHYSADDR_BITS       MAX_PHYS_ADDRESS_BITS
+#define MAX_PHYSMEM_BITS        MAX_PHYS_ADDRESS_BITS
 
 #endif /* !(__KERNEL__) */
 
-- 
cgit 


From b2d438348024b75a1ee8b66b85d77f569a5dfed8 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Fri, 20 Sep 2013 21:50:41 -0700
Subject: sparc64: Make PAGE_OFFSET variable.

Choose PAGE_OFFSET dynamically based upon cpu type.

Original UltraSPARC-I (spitfire) chips only supported a 44-bit
virtual address space.

Newer chips (T4 and later) support 52-bit virtual addresses
and up to 47-bits of physical memory space.

Therefore we have to adjust PAGE_SIZE dynamically based upon
the capabilities of the chip.

Note that this change alone does not allow us to support > 43-bit
physical memory, to do that we need to re-arrange our page table
support.  The current encodings of the pmd_t and pgd_t pointers
restricts us to "32 + 11" == 43 bits.

This change can waste quite a bit of memory for the various tables.
In particular, a future change should work to size and allocate
kern_linear_bitmap[] and sparc64_valid_addr_bitmap[] dynamically.
This isn't easy as we really cannot take a TLB miss when accessing
kern_linear_bitmap[].  We'd have to lock it into the TLB or similar.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Bob Picco <bob.picco@oracle.com>
---
 arch/sparc/include/asm/page_64.h | 20 +++------
 arch/sparc/kernel/ktlb.S         | 30 ++++++++++---
 arch/sparc/kernel/vmlinux.lds.S  |  5 +++
 arch/sparc/lib/clear_page.S      |  4 +-
 arch/sparc/lib/copy_page.S       |  4 +-
 arch/sparc/mm/init_64.c          | 92 ++++++++++++++++++++++++++++++++++++++++
 arch/sparc/mm/ultra.S            | 12 +++---
 7 files changed, 138 insertions(+), 29 deletions(-)

diff --git a/arch/sparc/include/asm/page_64.h b/arch/sparc/include/asm/page_64.h
index 978ea6d022e9..89e07fd0ac88 100644
--- a/arch/sparc/include/asm/page_64.h
+++ b/arch/sparc/include/asm/page_64.h
@@ -112,24 +112,16 @@ typedef pte_t *pgtable_t;
 
 #include <asm-generic/memory_model.h>
 
-#endif /* !(__ASSEMBLY__) */
-
-/* We used to stick this into a hard-coded global register (%g4)
- * but that does not make sense anymore.
- */
-#define MAX_SUPPORTED_PA_BITS	43
 #define PAGE_OFFSET_BY_BITS(X)	(-(_AC(1,UL) << (X)))
-#define PAGE_OFFSET		PAGE_OFFSET_BY_BITS(MAX_SUPPORTED_PA_BITS)
+extern unsigned long PAGE_OFFSET;
 
-/* The "virtual" portion of PAGE_OFFSET, used to clip off the non-physical
- * bits of a linear kernel address.
- */
-#define PAGE_OFFSET_VA_BITS	(64 - MAX_SUPPORTED_PA_BITS)
+#endif /* !(__ASSEMBLY__) */
 
-/* The actual number of physical memory address bits we support, this is
- * used to size various tables used to manage kernel TLB misses.
+/* The maximum number of physical memory address bits we support, this
+ * is used to size various tables used to manage kernel TLB misses and
+ * also the sparsemem code.
  */
-#define MAX_PHYS_ADDRESS_BITS	41
+#define MAX_PHYS_ADDRESS_BITS	47
 
 /* These two shift counts are used when indexing sparc64_valid_addr_bitmap
  * and kpte_linear_bitmap.
diff --git a/arch/sparc/kernel/ktlb.S b/arch/sparc/kernel/ktlb.S
index 7ad46bc0c698..542e96ac4d39 100644
--- a/arch/sparc/kernel/ktlb.S
+++ b/arch/sparc/kernel/ktlb.S
@@ -153,12 +153,19 @@ kvmap_dtlb_tsb4m_miss:
 	/* Clear the PAGE_OFFSET top virtual bits, shift
 	 * down to get PFN, and make sure PFN is in range.
 	 */
-	sllx		%g4, PAGE_OFFSET_VA_BITS, %g5
+661:	sllx		%g4, 0, %g5
+	.section	.page_offset_shift_patch, "ax"
+	.word		661b
+	.previous
 
 	/* Check to see if we know about valid memory at the 4MB
 	 * chunk this physical address will reside within.
 	 */
-	srlx		%g5, PAGE_OFFSET_VA_BITS + MAX_PHYS_ADDRESS_BITS, %g2
+661:	srlx		%g5, MAX_PHYS_ADDRESS_BITS, %g2
+	.section	.page_offset_shift_patch, "ax"
+	.word		661b
+	.previous
+
 	brnz,pn		%g2, kvmap_dtlb_longpath
 	 nop
 
@@ -176,7 +183,11 @@ valid_addr_bitmap_patch:
 	or		%g7, %lo(sparc64_valid_addr_bitmap), %g7
 	.previous
 
-	srlx		%g5, PAGE_OFFSET_VA_BITS + ILOG2_4MB, %g2
+661:	srlx		%g5, ILOG2_4MB, %g2
+	.section	.page_offset_shift_patch, "ax"
+	.word		661b
+	.previous
+
 	srlx		%g2, 6, %g5
 	and		%g2, 63, %g2
 	sllx		%g5, 3, %g5
@@ -189,9 +200,18 @@ valid_addr_bitmap_patch:
 2:	 sethi		%hi(kpte_linear_bitmap), %g2
 
 	/* Get the 256MB physical address index. */
-	sllx		%g4, PAGE_OFFSET_VA_BITS, %g5
+661:	sllx		%g4, 0, %g5
+	.section	.page_offset_shift_patch, "ax"
+	.word		661b
+	.previous
+
 	or		%g2, %lo(kpte_linear_bitmap), %g2
-	srlx		%g5, PAGE_OFFSET_VA_BITS + ILOG2_256MB, %g5
+
+661:	srlx		%g5, ILOG2_256MB, %g5
+	.section	.page_offset_shift_patch, "ax"
+	.word		661b
+	.previous
+
 	and		%g5, (32 - 1), %g7
 
 	/* Divide by 32 to get the offset into the bitmask.  */
diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S
index 0bacceb19150..932ff90fd760 100644
--- a/arch/sparc/kernel/vmlinux.lds.S
+++ b/arch/sparc/kernel/vmlinux.lds.S
@@ -122,6 +122,11 @@ SECTIONS
 		*(.swapper_4m_tsb_phys_patch)
 		__swapper_4m_tsb_phys_patch_end = .;
 	}
+	.page_offset_shift_patch : {
+		__page_offset_shift_patch = .;
+		*(.page_offset_shift_patch)
+		__page_offset_shift_patch_end = .;
+	}
 	.popc_3insn_patch : {
 		__popc_3insn_patch = .;
 		*(.popc_3insn_patch)
diff --git a/arch/sparc/lib/clear_page.S b/arch/sparc/lib/clear_page.S
index 77e531f6c2a7..46272dfc26e8 100644
--- a/arch/sparc/lib/clear_page.S
+++ b/arch/sparc/lib/clear_page.S
@@ -37,10 +37,10 @@ _clear_page:		/* %o0=dest */
 	.globl		clear_user_page
 clear_user_page:	/* %o0=dest, %o1=vaddr */
 	lduw		[%g6 + TI_PRE_COUNT], %o2
-	sethi		%uhi(PAGE_OFFSET), %g2
+	sethi		%hi(PAGE_OFFSET), %g2
 	sethi		%hi(PAGE_SIZE), %o4
 
-	sllx		%g2, 32, %g2
+	ldx		[%g2 + %lo(PAGE_OFFSET)], %g2
 	sethi		%hi(PAGE_KERNEL_LOCKED), %g3
 
 	ldx		[%g3 + %lo(PAGE_KERNEL_LOCKED)], %g3
diff --git a/arch/sparc/lib/copy_page.S b/arch/sparc/lib/copy_page.S
index 4d2df328e514..dd16c61f3263 100644
--- a/arch/sparc/lib/copy_page.S
+++ b/arch/sparc/lib/copy_page.S
@@ -46,10 +46,10 @@
 	.type		copy_user_page,#function
 copy_user_page:		/* %o0=dest, %o1=src, %o2=vaddr */
 	lduw		[%g6 + TI_PRE_COUNT], %o4
-	sethi		%uhi(PAGE_OFFSET), %g2
+	sethi		%hi(PAGE_OFFSET), %g2
 	sethi		%hi(PAGE_SIZE), %o3
 
-	sllx		%g2, 32, %g2
+	ldx		[%g2 + %lo(PAGE_OFFSET)], %g2
 	sethi		%hi(PAGE_KERNEL_LOCKED), %g3
 
 	ldx		[%g3 + %lo(PAGE_KERNEL_LOCKED)], %g3
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index e295a5b30ac9..7a97b5a28b4b 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -1557,6 +1557,96 @@ unsigned long __init find_ecache_flush_span(unsigned long size)
 	return ~0UL;
 }
 
+unsigned long PAGE_OFFSET;
+EXPORT_SYMBOL(PAGE_OFFSET);
+
+static void __init page_offset_shift_patch_one(unsigned int *insn, unsigned long phys_bits)
+{
+	unsigned long final_shift;
+	unsigned int val = *insn;
+	unsigned int cnt;
+
+	/* We are patching in ilog2(max_supported_phys_address), and
+	 * we are doing so in a manner similar to a relocation addend.
+	 * That is, we are adding the shift value to whatever value
+	 * is in the shift instruction count field already.
+	 */
+	cnt = (val & 0x3f);
+	val &= ~0x3f;
+
+	/* If we are trying to shift >= 64 bits, clear the destination
+	 * register.  This can happen when phys_bits ends up being equal
+	 * to MAX_PHYS_ADDRESS_BITS.
+	 */
+	final_shift = (cnt + (64 - phys_bits));
+	if (final_shift >= 64) {
+		unsigned int rd = (val >> 25) & 0x1f;
+
+		val = 0x80100000 | (rd << 25);
+	} else {
+		val |= final_shift;
+	}
+	*insn = val;
+
+	__asm__ __volatile__("flush	%0"
+			     : /* no outputs */
+			     : "r" (insn));
+}
+
+static void __init page_offset_shift_patch(unsigned long phys_bits)
+{
+	extern unsigned int __page_offset_shift_patch;
+	extern unsigned int __page_offset_shift_patch_end;
+	unsigned int *p;
+
+	p = &__page_offset_shift_patch;
+	while (p < &__page_offset_shift_patch_end) {
+		unsigned int *insn = (unsigned int *)(unsigned long)*p;
+
+		page_offset_shift_patch_one(insn, phys_bits);
+
+		p++;
+	}
+}
+
+static void __init setup_page_offset(void)
+{
+	unsigned long max_phys_bits = 40;
+
+	if (tlb_type == cheetah || tlb_type == cheetah_plus) {
+		max_phys_bits = 42;
+	} else if (tlb_type == hypervisor) {
+		switch (sun4v_chip_type) {
+		case SUN4V_CHIP_NIAGARA1:
+		case SUN4V_CHIP_NIAGARA2:
+			max_phys_bits = 39;
+			break;
+		case SUN4V_CHIP_NIAGARA3:
+			max_phys_bits = 43;
+			break;
+		case SUN4V_CHIP_NIAGARA4:
+		case SUN4V_CHIP_NIAGARA5:
+		case SUN4V_CHIP_SPARC64X:
+		default:
+			max_phys_bits = 47;
+			break;
+		}
+	}
+
+	if (max_phys_bits > MAX_PHYS_ADDRESS_BITS) {
+		prom_printf("MAX_PHYS_ADDRESS_BITS is too small, need %lu\n",
+			    max_phys_bits);
+		prom_halt();
+	}
+
+	PAGE_OFFSET = PAGE_OFFSET_BY_BITS(max_phys_bits);
+
+	pr_info("PAGE_OFFSET is 0x%016lx (max_phys_bits == %lu)\n",
+		PAGE_OFFSET, max_phys_bits);
+
+	page_offset_shift_patch(max_phys_bits);
+}
+
 static void __init tsb_phys_patch(void)
 {
 	struct tsb_ldquad_phys_patch_entry *pquad;
@@ -1763,6 +1853,8 @@ void __init paging_init(void)
 	unsigned long real_end, i;
 	int node;
 
+	setup_page_offset();
+
 	/* These build time checkes make sure that the dcache_dirty_cpu()
 	 * page->flags usage will work.
 	 *
diff --git a/arch/sparc/mm/ultra.S b/arch/sparc/mm/ultra.S
index 432aa0cb1b38..b4f4733abc6e 100644
--- a/arch/sparc/mm/ultra.S
+++ b/arch/sparc/mm/ultra.S
@@ -153,10 +153,10 @@ __spitfire_flush_tlb_mm_slow:
 	.globl		__flush_icache_page
 __flush_icache_page:	/* %o0 = phys_page */
 	srlx		%o0, PAGE_SHIFT, %o0
-	sethi		%uhi(PAGE_OFFSET), %g1
+	sethi		%hi(PAGE_OFFSET), %g1
 	sllx		%o0, PAGE_SHIFT, %o0
 	sethi		%hi(PAGE_SIZE), %g2
-	sllx		%g1, 32, %g1
+	ldx		[%g1 + %lo(PAGE_OFFSET)], %g1
 	add		%o0, %g1, %o0
 1:	subcc		%g2, 32, %g2
 	bne,pt		%icc, 1b
@@ -178,8 +178,8 @@ __flush_icache_page:	/* %o0 = phys_page */
 	.align		64
 	.globl		__flush_dcache_page
 __flush_dcache_page:	/* %o0=kaddr, %o1=flush_icache */
-	sethi		%uhi(PAGE_OFFSET), %g1
-	sllx		%g1, 32, %g1
+	sethi		%hi(PAGE_OFFSET), %g1
+	ldx		[%g1 + %lo(PAGE_OFFSET)], %g1
 	sub		%o0, %g1, %o0			! physical address
 	srlx		%o0, 11, %o0			! make D-cache TAG
 	sethi		%hi(1 << 14), %o2		! D-cache size
@@ -287,8 +287,8 @@ __cheetah_flush_tlb_pending:	/* 27 insns */
 
 #ifdef DCACHE_ALIASING_POSSIBLE
 __cheetah_flush_dcache_page: /* 11 insns */
-	sethi		%uhi(PAGE_OFFSET), %g1
-	sllx		%g1, 32, %g1
+	sethi		%hi(PAGE_OFFSET), %g1
+	ldx		[%g1 + %lo(PAGE_OFFSET)], %g1
 	sub		%o0, %g1, %o0
 	sethi		%hi(PAGE_SIZE), %o4
 1:	subcc		%o4, (1 << 5), %o4
-- 
cgit 


From 37b3a8ff3e086cd5c369e77d2383b691b2874cd6 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 25 Sep 2013 13:48:49 -0700
Subject: sparc64: Move from 4MB to 8MB huge pages.

The impetus for this is that we would like to move to 64-bit PMDs and
PGDs, but that would result in only supporting a 42-bit address space
with the current page table layout.  It'd be nice to support at least
43-bits.

The reason we'd end up with only 42-bits after making PMDs and PGDs
64-bit is that we only use half-page sized PTE tables in order to make
PMDs line up to 4MB, the hardware huge page size we use.

So what we do here is we make huge pages 8MB, and fabricate them using
4MB hw TLB entries.

Facilitate this by providing a "REAL_HPAGE_SHIFT" which is used in
places that really need to operate on hardware 4MB pages.

Use full pages (512 entries) for PTE tables, and adjust PMD_SHIFT,
PGD_SHIFT, and the build time CPP test as needed.  Use a CPP test to
make sure REAL_HPAGE_SHIFT and the _PAGE_SZHUGE_* we use match up.

This makes the pgtable cache completely unused, so remove the code
managing it and the state used in mm_context_t.  Now we have less
spinlocks taken in the page table allocation path.

The technique we use to fabricate the 8MB pages is to transfer bit 22
from the missing virtual address into the PTEs physical address field.
That takes care of the transparent huge pages case.

For hugetlb, we fill things in at the PTE level and that code already
puts the sub huge page physical bits into the PTEs, based upon the
offset, so there is nothing special we need to do.  It all just works
out.

So, a small amount of complexity in the THP case, but this code is
about to get much simpler when we move the 64-bit PMDs as we can move
away from the fancy 32-bit huge PMD encoding and just put a real PTE
value in there.

With bug fixes and help from Bob Picco.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/include/asm/mmu_64.h     |  1 -
 arch/sparc/include/asm/page_64.h    |  5 ++-
 arch/sparc/include/asm/pgtable_64.h | 12 ++++--
 arch/sparc/include/asm/tsb.h        | 17 ++++++---
 arch/sparc/kernel/sun4v_tlb_miss.S  |  2 +-
 arch/sparc/kernel/tsb.S             |  2 +-
 arch/sparc/mm/init_64.c             | 74 ++++++++-----------------------------
 arch/sparc/mm/tlb.c                 |  6 ++-
 arch/sparc/mm/tsb.c                 | 13 +------
 9 files changed, 47 insertions(+), 85 deletions(-)

diff --git a/arch/sparc/include/asm/mmu_64.h b/arch/sparc/include/asm/mmu_64.h
index 76092c4dd277..f668797ae234 100644
--- a/arch/sparc/include/asm/mmu_64.h
+++ b/arch/sparc/include/asm/mmu_64.h
@@ -93,7 +93,6 @@ typedef struct {
 	spinlock_t		lock;
 	unsigned long		sparc64_ctx_val;
 	unsigned long		huge_pte_count;
-	struct page		*pgtable_page;
 	struct tsb_config	tsb_block[MM_NUM_TSBS];
 	struct hv_tsb_descr	tsb_descr[MM_NUM_TSBS];
 } mm_context_t;
diff --git a/arch/sparc/include/asm/page_64.h b/arch/sparc/include/asm/page_64.h
index 89e07fd0ac88..1958bfbe300c 100644
--- a/arch/sparc/include/asm/page_64.h
+++ b/arch/sparc/include/asm/page_64.h
@@ -15,7 +15,10 @@
 #define DCACHE_ALIASING_POSSIBLE
 #endif
 
-#define HPAGE_SHIFT		22
+#define HPAGE_SHIFT		23
+#define REAL_HPAGE_SHIFT	22
+
+#define REAL_HPAGE_SIZE		(_AC(1,UL) << REAL_HPAGE_SHIFT)
 
 #if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
 #define HPAGE_SIZE		(_AC(1,UL) << HPAGE_SHIFT)
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index 36760317814f..012b6eeeb06a 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -48,18 +48,18 @@
 /* PMD_SHIFT determines the size of the area a second-level page
  * table can map
  */
-#define PMD_SHIFT	(PAGE_SHIFT + (PAGE_SHIFT-4))
+#define PMD_SHIFT	(PAGE_SHIFT + (PAGE_SHIFT-3))
 #define PMD_SIZE	(_AC(1,UL) << PMD_SHIFT)
 #define PMD_MASK	(~(PMD_SIZE-1))
 #define PMD_BITS	(PAGE_SHIFT - 2)
 
 /* PGDIR_SHIFT determines what a third-level page table entry can map */
-#define PGDIR_SHIFT	(PAGE_SHIFT + (PAGE_SHIFT-4) + PMD_BITS)
+#define PGDIR_SHIFT	(PAGE_SHIFT + (PAGE_SHIFT-3) + PMD_BITS)
 #define PGDIR_SIZE	(_AC(1,UL) << PGDIR_SHIFT)
 #define PGDIR_MASK	(~(PGDIR_SIZE-1))
 #define PGDIR_BITS	(PAGE_SHIFT - 2)
 
-#if (PGDIR_SHIFT + PGDIR_BITS) != 44
+#if (PGDIR_SHIFT + PGDIR_BITS) != 45
 #error Page table parameters do not cover virtual address space properly.
 #endif
 
@@ -95,7 +95,7 @@
 #include <linux/sched.h>
 
 /* Entries per page directory level. */
-#define PTRS_PER_PTE	(1UL << (PAGE_SHIFT-4))
+#define PTRS_PER_PTE	(1UL << (PAGE_SHIFT-3))
 #define PTRS_PER_PMD	(1UL << PMD_BITS)
 #define PTRS_PER_PGD	(1UL << PGDIR_BITS)
 
@@ -180,6 +180,10 @@
 #define _PAGE_SZBITS_4U	_PAGE_SZ8K_4U
 #define _PAGE_SZBITS_4V	_PAGE_SZ8K_4V
 
+#if REAL_HPAGE_SHIFT != 22
+#error REAL_HPAGE_SHIFT and _PAGE_SZHUGE_foo must match up
+#endif
+
 #define _PAGE_SZHUGE_4U	_PAGE_SZ4MB_4U
 #define _PAGE_SZHUGE_4V	_PAGE_SZ4MB_4V
 
diff --git a/arch/sparc/include/asm/tsb.h b/arch/sparc/include/asm/tsb.h
index e696432b950d..16e577711a7b 100644
--- a/arch/sparc/include/asm/tsb.h
+++ b/arch/sparc/include/asm/tsb.h
@@ -152,7 +152,7 @@ extern struct tsb_phys_patch_entry __tsb_phys_patch, __tsb_phys_patch_end;
 	lduwa		[REG1 + REG2] ASI_PHYS_USE_EC, REG1; \
 	brz,pn		REG1, FAIL_LABEL; \
 	 sllx		VADDR, 64 - PMD_SHIFT, REG2; \
-	srlx		REG2, 64 - (PAGE_SHIFT - 1), REG2; \
+	srlx		REG2, 64 - PAGE_SHIFT, REG2; \
 	sllx		REG1, PMD_PADDR_SHIFT, REG1; \
 	andn		REG2, 0x7, REG2; \
 	add		REG1, REG2, REG1;
@@ -177,8 +177,15 @@ extern struct tsb_phys_patch_entry __tsb_phys_patch, __tsb_phys_patch_end;
 	or		REG, _PAGE_##NAME##_4V, REG;	\
 	.previous;
 
-	/* Load into REG the PTE value for VALID, CACHE, and SZHUGE.  */
-#define BUILD_PTE_VALID_SZHUGE_CACHE(REG)				   \
+	/* Load into REG the PTE value for VALID, CACHE, and SZHUGE.
+	 *
+	 * We are fabricating an 8MB page using 2 4MB HW pages here.
+	 */
+#define BUILD_PTE_VALID_SZHUGE_CACHE(VADDR, PADDR_BITS, REG)		   \
+	sethi		%hi(4 * 1024 * 1024), REG;			   \
+	andn		PADDR_BITS, REG, PADDR_BITS;			   \
+	and		VADDR, REG, REG;				   \
+	or		PADDR_BITS, REG, PADDR_BITS;			   \
 661:	sethi		%uhi(_PAGE_VALID|_PAGE_SZHUGE_4U), REG;		   \
 	.section	.sun4v_1insn_patch, "ax";			   \
 	.word		661b;						   \
@@ -231,7 +238,7 @@ extern struct tsb_phys_patch_entry __tsb_phys_patch, __tsb_phys_patch_end;
 	 nop;								      \
 	OR_PTE_BIT_2INSN(REG2, REG1, EXEC);				      \
 	/* REG1 can now be clobbered, build final PTE */		      \
-1:	BUILD_PTE_VALID_SZHUGE_CACHE(REG1);				      \
+1:	BUILD_PTE_VALID_SZHUGE_CACHE(VADDR, REG2, REG1);		      \
 	ba,pt		%xcc, PTE_LABEL;				      \
 	 or		REG1, REG2, REG1;				      \
 700:
@@ -263,7 +270,7 @@ extern struct tsb_phys_patch_entry __tsb_phys_patch, __tsb_phys_patch_end;
 	lduwa		[REG1 + REG2] ASI_PHYS_USE_EC, REG1; \
 	USER_PGTABLE_CHECK_PMD_HUGE(VADDR, REG1, REG2, FAIL_LABEL, 800f) \
 	sllx		VADDR, 64 - PMD_SHIFT, REG2; \
-	srlx		REG2, 64 - (PAGE_SHIFT - 1), REG2; \
+	srlx		REG2, 64 - PAGE_SHIFT, REG2; \
 	sllx		REG1, PMD_PADDR_SHIFT, REG1; \
 	andn		REG2, 0x7, REG2; \
 	add		REG1, REG2, REG1; \
diff --git a/arch/sparc/kernel/sun4v_tlb_miss.S b/arch/sparc/kernel/sun4v_tlb_miss.S
index bde867fd71e8..e0c09bf85610 100644
--- a/arch/sparc/kernel/sun4v_tlb_miss.S
+++ b/arch/sparc/kernel/sun4v_tlb_miss.S
@@ -182,7 +182,7 @@ sun4v_tsb_miss_common:
 	cmp	%g5, -1
 	be,pt	%xcc, 80f
 	 nop
-	COMPUTE_TSB_PTR(%g5, %g4, HPAGE_SHIFT, %g2, %g7)
+	COMPUTE_TSB_PTR(%g5, %g4, REAL_HPAGE_SHIFT, %g2, %g7)
 
 	/* That clobbered %g2, reload it.  */
 	ldxa	[%g0] ASI_SCRATCHPAD, %g2
diff --git a/arch/sparc/kernel/tsb.S b/arch/sparc/kernel/tsb.S
index a313e4a9399b..14158d40ba76 100644
--- a/arch/sparc/kernel/tsb.S
+++ b/arch/sparc/kernel/tsb.S
@@ -75,7 +75,7 @@ tsb_miss_page_table_walk:
 	mov		512, %g7
 	andn		%g5, 0x7, %g5
 	sllx		%g7, %g6, %g7
-	srlx		%g4, HPAGE_SHIFT, %g6
+	srlx		%g4, REAL_HPAGE_SHIFT, %g6
 	sub		%g7, 1, %g7
 	and		%g6, %g7, %g6
 	sllx		%g6, 4, %g6
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 7a97b5a28b4b..807e10833512 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -354,7 +354,7 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t *
 
 #if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
 	if (mm->context.huge_pte_count && is_hugetlb_pte(pte))
-		__update_mmu_tsb_insert(mm, MM_TSB_HUGE, HPAGE_SHIFT,
+		__update_mmu_tsb_insert(mm, MM_TSB_HUGE, REAL_HPAGE_SHIFT,
 					address, pte_val(pte));
 	else
 #endif
@@ -2547,53 +2547,13 @@ void __flush_tlb_all(void)
 			     : : "r" (pstate));
 }
 
-static pte_t *get_from_cache(struct mm_struct *mm)
-{
-	struct page *page;
-	pte_t *ret;
-
-	spin_lock(&mm->page_table_lock);
-	page = mm->context.pgtable_page;
-	ret = NULL;
-	if (page) {
-		void *p = page_address(page);
-
-		mm->context.pgtable_page = NULL;
-
-		ret = (pte_t *) (p + (PAGE_SIZE / 2));
-	}
-	spin_unlock(&mm->page_table_lock);
-
-	return ret;
-}
-
-static struct page *__alloc_for_cache(struct mm_struct *mm)
-{
-	struct page *page = alloc_page(GFP_KERNEL | __GFP_NOTRACK |
-				       __GFP_REPEAT | __GFP_ZERO);
-
-	if (page) {
-		spin_lock(&mm->page_table_lock);
-		if (!mm->context.pgtable_page) {
-			atomic_set(&page->_count, 2);
-			mm->context.pgtable_page = page;
-		}
-		spin_unlock(&mm->page_table_lock);
-	}
-	return page;
-}
-
 pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 			    unsigned long address)
 {
-	struct page *page;
-	pte_t *pte;
-
-	pte = get_from_cache(mm);
-	if (pte)
-		return pte;
+	struct page *page = alloc_page(GFP_KERNEL | __GFP_NOTRACK |
+				       __GFP_REPEAT | __GFP_ZERO);
+	pte_t *pte = NULL;
 
-	page = __alloc_for_cache(mm);
 	if (page)
 		pte = (pte_t *) page_address(page);
 
@@ -2603,14 +2563,10 @@ pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 pgtable_t pte_alloc_one(struct mm_struct *mm,
 			unsigned long address)
 {
-	struct page *page;
-	pte_t *pte;
-
-	pte = get_from_cache(mm);
-	if (pte)
-		return pte;
+	struct page *page = alloc_page(GFP_KERNEL | __GFP_NOTRACK |
+				       __GFP_REPEAT | __GFP_ZERO);
+	pte_t *pte = NULL;
 
-	page = __alloc_for_cache(mm);
 	if (page) {
 		pgtable_page_ctor(page);
 		pte = (pte_t *) page_address(page);
@@ -2621,18 +2577,15 @@ pgtable_t pte_alloc_one(struct mm_struct *mm,
 
 void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 {
-	struct page *page = virt_to_page(pte);
-	if (put_page_testzero(page))
-		free_hot_cold_page(page, 0);
+	free_page((unsigned long)pte);
 }
 
 static void __pte_free(pgtable_t pte)
 {
 	struct page *page = virt_to_page(pte);
-	if (put_page_testzero(page)) {
-		pgtable_page_dtor(page);
-		free_hot_cold_page(page, 0);
-	}
+
+	pgtable_page_dtor(page);
+	__free_page(page);
 }
 
 void pte_free(struct mm_struct *mm, pgtable_t pte)
@@ -2752,6 +2705,9 @@ void update_mmu_cache_pmd(struct vm_area_struct *vma, unsigned long addr,
 	pte <<= PMD_PADDR_SHIFT;
 	pte |= _PAGE_VALID;
 
+	/* We are fabricating 8MB pages using 4MB real hw pages.  */
+	pte |= (addr & (1UL << REAL_HPAGE_SHIFT));
+
 	prot = pmd_pgprot(entry);
 
 	if (tlb_type == hypervisor)
@@ -2766,7 +2722,7 @@ void update_mmu_cache_pmd(struct vm_area_struct *vma, unsigned long addr,
 	spin_lock_irqsave(&mm->context.lock, flags);
 
 	if (mm->context.tsb_block[MM_TSB_HUGE].tsb != NULL)
-		__update_mmu_tsb_insert(mm, MM_TSB_HUGE, HPAGE_SHIFT,
+		__update_mmu_tsb_insert(mm, MM_TSB_HUGE, REAL_HPAGE_SHIFT,
 					addr, pte);
 
 	spin_unlock_irqrestore(&mm->context.lock, flags);
diff --git a/arch/sparc/mm/tlb.c b/arch/sparc/mm/tlb.c
index 7a91f288c708..97d1e56e9863 100644
--- a/arch/sparc/mm/tlb.c
+++ b/arch/sparc/mm/tlb.c
@@ -181,10 +181,12 @@ void set_pmd_at(struct mm_struct *mm, unsigned long addr,
 		bool exec = ((pmd_val(orig) & PMD_HUGE_EXEC) != 0);
 
 		addr &= HPAGE_MASK;
-		if (pmd_val(orig) & PMD_ISHUGE)
+		if (pmd_val(orig) & PMD_ISHUGE) {
 			tlb_batch_add_one(mm, addr, exec);
-		else
+			tlb_batch_add_one(mm, addr + REAL_HPAGE_SIZE, exec);
+		} else {
 			tlb_batch_pmd_scan(mm, addr, orig, exec);
+		}
 	}
 }
 
diff --git a/arch/sparc/mm/tsb.c b/arch/sparc/mm/tsb.c
index 2cc3bce5ee91..3b3a360b429a 100644
--- a/arch/sparc/mm/tsb.c
+++ b/arch/sparc/mm/tsb.c
@@ -87,7 +87,7 @@ void flush_tsb_user(struct tlb_batch *tb)
 		nentries = mm->context.tsb_block[MM_TSB_HUGE].tsb_nentries;
 		if (tlb_type == cheetah_plus || tlb_type == hypervisor)
 			base = __pa(base);
-		__flush_tsb_one(tb, HPAGE_SHIFT, base, nentries);
+		__flush_tsb_one(tb, REAL_HPAGE_SHIFT, base, nentries);
 	}
 #endif
 	spin_unlock_irqrestore(&mm->context.lock, flags);
@@ -111,7 +111,7 @@ void flush_tsb_user_page(struct mm_struct *mm, unsigned long vaddr)
 		nentries = mm->context.tsb_block[MM_TSB_HUGE].tsb_nentries;
 		if (tlb_type == cheetah_plus || tlb_type == hypervisor)
 			base = __pa(base);
-		__flush_tsb_one_entry(base, vaddr, HPAGE_SHIFT, nentries);
+		__flush_tsb_one_entry(base, vaddr, REAL_HPAGE_SHIFT, nentries);
 	}
 #endif
 	spin_unlock_irqrestore(&mm->context.lock, flags);
@@ -472,8 +472,6 @@ int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
 	mm->context.huge_pte_count = 0;
 #endif
 
-	mm->context.pgtable_page = NULL;
-
 	/* copy_mm() copies over the parent's mm_struct before calling
 	 * us, so we need to zero out the TSB pointer or else tsb_grow()
 	 * will be confused and think there is an older TSB to free up.
@@ -512,17 +510,10 @@ static void tsb_destroy_one(struct tsb_config *tp)
 void destroy_context(struct mm_struct *mm)
 {
 	unsigned long flags, i;
-	struct page *page;
 
 	for (i = 0; i < MM_NUM_TSBS; i++)
 		tsb_destroy_one(&mm->context.tsb_block[i]);
 
-	page = mm->context.pgtable_page;
-	if (page && put_page_testzero(page)) {
-		pgtable_page_dtor(page);
-		free_hot_cold_page(page, 0);
-	}
-
 	spin_lock_irqsave(&ctx_alloc_lock, flags);
 
 	if (CTX_VALID(mm->context)) {
-- 
cgit 


From 2b77933c28f5044629bb19e8045aae65b72b939d Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 25 Sep 2013 14:33:16 -0700
Subject: sparc64: Move to 64-bit PGDs and PMDs.

To make the page tables compact, we were using 32-bit PGDs and PMDs.
We only had to support <= 43 bits of physical addresses so this was
quite feasible.

In order to support larger physical addresses we have to move to
64-bit PGDs and PMDs.

Most of the changes are straight-forward:

1) {pgd,pmd}_t --> unsigned long

2) Anything that tries to use plain "unsigned int" types with pgd/pmd
   values needs to be adjusted.  In particular things like "0U" become
   "0UL".

3) {PGDIR,PMD}_BITS decrease by one.

4) In the assembler page table walkers, use "ldxa" instead of "lduwa"
   and adjust the low bit masks to clear out the low 3 bits instead of
   just the low 2 bits during pgd/pmd address formation.

Also, use PTRS_PER_PGD and PTRS_PER_PMD in the sizing of the
swapper_{pg_dir,low_pmd_dir} arrays.

This patch does not try to take advantage of having 64-bits in the
PMDs to simplify the hugepage code, that will come in a subsequent
change.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/include/asm/page_64.h    | 25 ++++++++++++++-----------
 arch/sparc/include/asm/pgtable_64.h | 22 +++++++++++-----------
 arch/sparc/include/asm/tsb.h        | 16 ++++++++--------
 arch/sparc/mm/init_64.c             |  2 +-
 4 files changed, 34 insertions(+), 31 deletions(-)

diff --git a/arch/sparc/include/asm/page_64.h b/arch/sparc/include/asm/page_64.h
index 1958bfbe300c..aac53fcea807 100644
--- a/arch/sparc/include/asm/page_64.h
+++ b/arch/sparc/include/asm/page_64.h
@@ -56,8 +56,8 @@ extern void copy_user_page(void *to, void *from, unsigned long vaddr, struct pag
 /* These are used to make use of C type-checking.. */
 typedef struct { unsigned long pte; } pte_t;
 typedef struct { unsigned long iopte; } iopte_t;
-typedef struct { unsigned int pmd; } pmd_t;
-typedef struct { unsigned int pgd; } pgd_t;
+typedef struct { unsigned long pmd; } pmd_t;
+typedef struct { unsigned long pgd; } pgd_t;
 typedef struct { unsigned long pgprot; } pgprot_t;
 
 #define pte_val(x)	((x).pte)
@@ -76,8 +76,8 @@ typedef struct { unsigned long pgprot; } pgprot_t;
 /* .. while these make it easier on the compiler */
 typedef unsigned long pte_t;
 typedef unsigned long iopte_t;
-typedef unsigned int pmd_t;
-typedef unsigned int pgd_t;
+typedef unsigned long pmd_t;
+typedef unsigned long pgd_t;
 typedef unsigned long pgprot_t;
 
 #define pte_val(x)	(x)
@@ -97,15 +97,18 @@ typedef unsigned long pgprot_t;
 typedef pte_t *pgtable_t;
 
 /* These two values define the virtual address space range in which we
- * must forbid 64-bit user processes from making mappings.  It
- * represents the virtual address space hole present in most early
- * sparc64 chips including UltraSPARC-I.  The next two defines specify
- * the actual exclusion region we enforce, wherein we use a 4GB red
- * zone on each side of the VA hole.
+ * must forbid 64-bit user processes from making mappings.  It used to
+ * represent precisely the virtual address space hole present in most
+ * early sparc64 chips including UltraSPARC-I.  But now it also is
+ * further constrained by the limits of our page tables, which is
+ * 43-bits of virtual address.
  */
-#define SPARC64_VA_HOLE_TOP	_AC(0xfffff80000000000,UL)
-#define SPARC64_VA_HOLE_BOTTOM	_AC(0x0000080000000000,UL)
+#define SPARC64_VA_HOLE_TOP	_AC(0xfffffc0000000000,UL)
+#define SPARC64_VA_HOLE_BOTTOM	_AC(0x0000040000000000,UL)
 
+/* The next two defines specify the actual exclusion region we
+ * enforce, wherein we use a 4GB red zone on each side of the VA hole.
+ */
 #define VA_EXCLUDE_START (SPARC64_VA_HOLE_BOTTOM - (1UL << 32UL))
 #define VA_EXCLUDE_END   (SPARC64_VA_HOLE_TOP + (1UL << 32UL))
 
diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index 012b6eeeb06a..eee803e10b92 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -51,15 +51,15 @@
 #define PMD_SHIFT	(PAGE_SHIFT + (PAGE_SHIFT-3))
 #define PMD_SIZE	(_AC(1,UL) << PMD_SHIFT)
 #define PMD_MASK	(~(PMD_SIZE-1))
-#define PMD_BITS	(PAGE_SHIFT - 2)
+#define PMD_BITS	(PAGE_SHIFT - 3)
 
 /* PGDIR_SHIFT determines what a third-level page table entry can map */
 #define PGDIR_SHIFT	(PAGE_SHIFT + (PAGE_SHIFT-3) + PMD_BITS)
 #define PGDIR_SIZE	(_AC(1,UL) << PGDIR_SHIFT)
 #define PGDIR_MASK	(~(PGDIR_SIZE-1))
-#define PGDIR_BITS	(PAGE_SHIFT - 2)
+#define PGDIR_BITS	(PAGE_SHIFT - 3)
 
-#if (PGDIR_SHIFT + PGDIR_BITS) != 45
+#if (PGDIR_SHIFT + PGDIR_BITS) != 43
 #error Page table parameters do not cover virtual address space properly.
 #endif
 
@@ -714,7 +714,7 @@ extern pgprot_t pmd_pgprot(pmd_t entry);
 
 static inline int pmd_present(pmd_t pmd)
 {
-	return pmd_val(pmd) != 0U;
+	return pmd_val(pmd) != 0UL;
 }
 
 #define pmd_none(pmd)			(!pmd_val(pmd))
@@ -741,7 +741,7 @@ static inline void pmd_set(struct mm_struct *mm, pmd_t *pmdp, pte_t *ptep)
 	(pud_val(*(pudp)) = (__pa((unsigned long) (pmdp)) >> PGD_PADDR_SHIFT))
 static inline unsigned long __pmd_page(pmd_t pmd)
 {
-	unsigned long paddr = (unsigned long) pmd_val(pmd);
+	unsigned long paddr = pmd_val(pmd);
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 	if (pmd_val(pmd) & PMD_ISHUGE)
 		paddr &= PMD_HUGE_PADDR;
@@ -751,14 +751,14 @@ static inline unsigned long __pmd_page(pmd_t pmd)
 }
 #define pmd_page(pmd) 			virt_to_page((void *)__pmd_page(pmd))
 #define pud_page_vaddr(pud)		\
-	((unsigned long) __va((((unsigned long)pud_val(pud))<<PGD_PADDR_SHIFT)))
+	((unsigned long) __va((pud_val(pud)<<PGD_PADDR_SHIFT)))
 #define pud_page(pud) 			virt_to_page((void *)pud_page_vaddr(pud))
 #define pmd_bad(pmd)			(0)
-#define pmd_clear(pmdp)			(pmd_val(*(pmdp)) = 0U)
+#define pmd_clear(pmdp)			(pmd_val(*(pmdp)) = 0UL)
 #define pud_none(pud)			(!pud_val(pud))
 #define pud_bad(pud)			(0)
 #define pud_present(pud)		(pud_val(pud) != 0U)
-#define pud_clear(pudp)			(pud_val(*(pudp)) = 0U)
+#define pud_clear(pudp)			(pud_val(*(pudp)) = 0UL)
 
 /* Same in both SUN4V and SUN4U.  */
 #define pte_none(pte) 			(!pte_val(pte))
@@ -793,7 +793,7 @@ static inline pmd_t pmdp_get_and_clear(struct mm_struct *mm,
 				       pmd_t *pmdp)
 {
 	pmd_t pmd = *pmdp;
-	set_pmd_at(mm, addr, pmdp, __pmd(0U));
+	set_pmd_at(mm, addr, pmdp, __pmd(0UL));
 	return pmd;
 }
 
@@ -841,8 +841,8 @@ static inline void __set_pte_at(struct mm_struct *mm, unsigned long addr,
 })
 #endif
 
-extern pgd_t swapper_pg_dir[2048];
-extern pmd_t swapper_low_pmd_dir[2048];
+extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
+extern pmd_t swapper_low_pmd_dir[PTRS_PER_PMD];
 
 extern void paging_init(void);
 extern unsigned long find_ecache_flush_span(unsigned long size);
diff --git a/arch/sparc/include/asm/tsb.h b/arch/sparc/include/asm/tsb.h
index 16e577711a7b..cc0432f15817 100644
--- a/arch/sparc/include/asm/tsb.h
+++ b/arch/sparc/include/asm/tsb.h
@@ -142,14 +142,14 @@ extern struct tsb_phys_patch_entry __tsb_phys_patch, __tsb_phys_patch_end;
 	or		REG1, %lo(swapper_pg_dir), REG1; \
 	sllx		VADDR, 64 - (PGDIR_SHIFT + PGDIR_BITS), REG2; \
 	srlx		REG2, 64 - PAGE_SHIFT, REG2; \
-	andn		REG2, 0x3, REG2; \
-	lduw		[REG1 + REG2], REG1; \
+	andn		REG2, 0x7, REG2; \
+	ldx		[REG1 + REG2], REG1; \
 	brz,pn		REG1, FAIL_LABEL; \
 	 sllx		VADDR, 64 - (PMD_SHIFT + PMD_BITS), REG2; \
 	srlx		REG2, 64 - PAGE_SHIFT, REG2; \
 	sllx		REG1, PGD_PADDR_SHIFT, REG1; \
-	andn		REG2, 0x3, REG2; \
-	lduwa		[REG1 + REG2] ASI_PHYS_USE_EC, REG1; \
+	andn		REG2, 0x7, REG2; \
+	ldxa		[REG1 + REG2] ASI_PHYS_USE_EC, REG1; \
 	brz,pn		REG1, FAIL_LABEL; \
 	 sllx		VADDR, 64 - PMD_SHIFT, REG2; \
 	srlx		REG2, 64 - PAGE_SHIFT, REG2; \
@@ -260,14 +260,14 @@ extern struct tsb_phys_patch_entry __tsb_phys_patch, __tsb_phys_patch_end;
 #define USER_PGTABLE_WALK_TL1(VADDR, PHYS_PGD, REG1, REG2, FAIL_LABEL)	\
 	sllx		VADDR, 64 - (PGDIR_SHIFT + PGDIR_BITS), REG2; \
 	srlx		REG2, 64 - PAGE_SHIFT, REG2; \
-	andn		REG2, 0x3, REG2; \
-	lduwa		[PHYS_PGD + REG2] ASI_PHYS_USE_EC, REG1; \
+	andn		REG2, 0x7, REG2; \
+	ldxa		[PHYS_PGD + REG2] ASI_PHYS_USE_EC, REG1; \
 	brz,pn		REG1, FAIL_LABEL; \
 	 sllx		VADDR, 64 - (PMD_SHIFT + PMD_BITS), REG2; \
 	srlx		REG2, 64 - PAGE_SHIFT, REG2; \
 	sllx		REG1, PGD_PADDR_SHIFT, REG1; \
-	andn		REG2, 0x3, REG2; \
-	lduwa		[REG1 + REG2] ASI_PHYS_USE_EC, REG1; \
+	andn		REG2, 0x7, REG2; \
+	ldxa		[REG1 + REG2] ASI_PHYS_USE_EC, REG1; \
 	USER_PGTABLE_CHECK_PMD_HUGE(VADDR, REG1, REG2, FAIL_LABEL, 800f) \
 	sllx		VADDR, 64 - PMD_SHIFT, REG2; \
 	srlx		REG2, 64 - PAGE_SHIFT, REG2; \
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 807e10833512..828784419e25 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -1842,7 +1842,7 @@ static void __init sun4v_linear_pte_xor_finalize(void)
 /* paging_init() sets up the page tables */
 
 static unsigned long last_valid_pfn;
-pgd_t swapper_pg_dir[2048];
+pgd_t swapper_pg_dir[PTRS_PER_PGD];
 
 static void sun4u_pgprot_init(void);
 static void sun4v_pgprot_init(void);
-- 
cgit 


From d07ba8422f1e58be94cc98a1f475946dc1b89f1b Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Tue, 12 Nov 2013 17:24:36 -0500
Subject: SUNRPC: Avoid deep recursion in rpc_release_client

In cases where an rpc client has a parent hierarchy, then
rpc_free_client may end up calling rpc_release_client() on the
parent, thus recursing back into rpc_free_client. If the hierarchy
is deep enough, then we can get into situations where the stack
simply overflows.

The fix is to have rpc_release_client() loop so that it can take
care of the parent rpc client hierarchy without needing to
recurse.

Reported-by: Jeff Layton <jlayton@redhat.com>
Reported-by: Weston Andros Adamson <dros@netapp.com>
Reported-by: Bruce Fields <bfields@fieldses.org>
Link: http://lkml.kernel.org/r/2C73011F-0939-434C-9E4D-13A1EB1403D7@netapp.com
Cc: stable@vger.kernel.org
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 net/sunrpc/clnt.c | 29 +++++++++++++++++------------
 1 file changed, 17 insertions(+), 12 deletions(-)

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index dab09dac8fc7..f09b7db2c492 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -750,14 +750,16 @@ EXPORT_SYMBOL_GPL(rpc_shutdown_client);
 /*
  * Free an RPC client
  */
-static void
+static struct rpc_clnt *
 rpc_free_client(struct rpc_clnt *clnt)
 {
+	struct rpc_clnt *parent = NULL;
+
 	dprintk_rcu("RPC:       destroying %s client for %s\n",
 			clnt->cl_program->name,
 			rcu_dereference(clnt->cl_xprt)->servername);
 	if (clnt->cl_parent != clnt)
-		rpc_release_client(clnt->cl_parent);
+		parent = clnt->cl_parent;
 	rpc_clnt_remove_pipedir(clnt);
 	rpc_unregister_client(clnt);
 	rpc_free_iostats(clnt->cl_metrics);
@@ -766,18 +768,17 @@ rpc_free_client(struct rpc_clnt *clnt)
 	rpciod_down();
 	rpc_free_clid(clnt);
 	kfree(clnt);
+	return parent;
 }
 
 /*
  * Free an RPC client
  */
-static void
+static struct rpc_clnt * 
 rpc_free_auth(struct rpc_clnt *clnt)
 {
-	if (clnt->cl_auth == NULL) {
-		rpc_free_client(clnt);
-		return;
-	}
+	if (clnt->cl_auth == NULL)
+		return rpc_free_client(clnt);
 
 	/*
 	 * Note: RPCSEC_GSS may need to send NULL RPC calls in order to
@@ -788,7 +789,8 @@ rpc_free_auth(struct rpc_clnt *clnt)
 	rpcauth_release(clnt->cl_auth);
 	clnt->cl_auth = NULL;
 	if (atomic_dec_and_test(&clnt->cl_count))
-		rpc_free_client(clnt);
+		return rpc_free_client(clnt);
+	return NULL;
 }
 
 /*
@@ -799,10 +801,13 @@ rpc_release_client(struct rpc_clnt *clnt)
 {
 	dprintk("RPC:       rpc_release_client(%p)\n", clnt);
 
-	if (list_empty(&clnt->cl_tasks))
-		wake_up(&destroy_wait);
-	if (atomic_dec_and_test(&clnt->cl_count))
-		rpc_free_auth(clnt);
+	do {
+		if (list_empty(&clnt->cl_tasks))
+			wake_up(&destroy_wait);
+		if (!atomic_dec_and_test(&clnt->cl_count))
+			break;
+		clnt = rpc_free_auth(clnt);
+	} while (clnt != NULL);
 }
 EXPORT_SYMBOL_GPL(rpc_release_client);
 
-- 
cgit 


From 5e8e6b4b3adebf01a9d97056cbbfd8c44330df99 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Tue, 12 Nov 2013 17:54:56 -0800
Subject: iscsi-target: Fix mutex_trylock usage in iscsit_increment_maxcmdsn

This patch fixes a >= v3.10 regression bug with mutex_trylock() usage
within iscsit_increment_maxcmdsn(), that was originally added to allow
for a special case where ->cmdsn_mutex was already held from the
iscsit_execute_cmd() exception path for ib_isert.

When !mutex_trylock() was occuring under contention during normal RX/TX
process context codepaths, the bug was manifesting itself as the following
protocol error:

  Received CmdSN: 0x000fcbb7 is greater than MaxCmdSN: 0x000fcbb6, protocol error.
  Received CmdSN: 0x000fcbb8 is greater than MaxCmdSN: 0x000fcbb6, protocol error.

This patch simply avoids the direct ib_isert callback in lio_queue_status()
for the special iscsi_execute_cmd() exception cases, that allows the problematic
mutex_trylock() usage in iscsit_increment_maxcmdsn() to go away.

Reported-by: Moussa Ba <moussaba@micron.com>
Tested-by: Moussa Ba <moussaba@micron.com>
Cc: <stable@vger.kernel.org> # v3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/iscsi/iscsi_target_configfs.c | 5 +++++
 drivers/target/iscsi/iscsi_target_device.c   | 6 +-----
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index 1eec37c47662..fde3624dce7e 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -1790,6 +1790,11 @@ static int lio_queue_status(struct se_cmd *se_cmd)
 	struct iscsi_cmd *cmd = container_of(se_cmd, struct iscsi_cmd, se_cmd);
 
 	cmd->i_state = ISTATE_SEND_STATUS;
+
+	if (cmd->se_cmd.scsi_status || cmd->sense_reason) {
+		iscsit_add_cmd_to_response_queue(cmd, cmd->conn, cmd->i_state);
+		return 0;
+	}
 	cmd->conn->conn_transport->iscsit_queue_status(cmd->conn, cmd);
 
 	return 0;
diff --git a/drivers/target/iscsi/iscsi_target_device.c b/drivers/target/iscsi/iscsi_target_device.c
index 6c7a5104a4cd..7087c736daa5 100644
--- a/drivers/target/iscsi/iscsi_target_device.c
+++ b/drivers/target/iscsi/iscsi_target_device.c
@@ -58,11 +58,7 @@ void iscsit_increment_maxcmdsn(struct iscsi_cmd *cmd, struct iscsi_session *sess
 
 	cmd->maxcmdsn_inc = 1;
 
-	if (!mutex_trylock(&sess->cmdsn_mutex)) {
-		sess->max_cmd_sn += 1;
-		pr_debug("Updated MaxCmdSN to 0x%08x\n", sess->max_cmd_sn);
-		return;
-	}
+	mutex_lock(&sess->cmdsn_mutex);
 	sess->max_cmd_sn += 1;
 	pr_debug("Updated MaxCmdSN to 0x%08x\n", sess->max_cmd_sn);
 	mutex_unlock(&sess->cmdsn_mutex);
-- 
cgit 


From 04d9cd1224e5bc9d6146bab2866cdc81deb9b509 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Tue, 12 Nov 2013 18:05:07 -0800
Subject: ib_isert: Avoid duplicate iscsit_increment_maxcmdsn call

This patch avoids a duplicate iscsit_increment_maxcmdsn() call for
ISER_IB_RDMA_WRITE within isert_map_rdma() + isert_reg_rdma_frwr(),
which will already be occuring once during isert_put_datain() ->
iscsit_build_rsp_pdu() operation.

It also removes the local conn->stat_sn assignment + increment,
and changes the third parameter to iscsit_build_rsp_pdu() to
signal this should be done by iscsi_target_mode code.

Tested-by: Moussa Ba <moussaba@micron.com>
Cc: <stable@vger.kernel.org> # v3.10+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/infiniband/ulp/isert/ib_isert.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index bbd86e82e042..56610751eb28 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -2029,8 +2029,6 @@ isert_map_rdma(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 
 	if (wr->iser_ib_op == ISER_IB_RDMA_WRITE) {
 		data_left = se_cmd->data_length;
-		iscsit_increment_maxcmdsn(cmd, conn->sess);
-		cmd->stat_sn = conn->stat_sn++;
 	} else {
 		sg_off = cmd->write_data_done / PAGE_SIZE;
 		data_left = se_cmd->data_length - cmd->write_data_done;
@@ -2242,8 +2240,6 @@ isert_reg_rdma_frwr(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 
 	if (wr->iser_ib_op == ISER_IB_RDMA_WRITE) {
 		data_left = se_cmd->data_length;
-		iscsit_increment_maxcmdsn(cmd, conn->sess);
-		cmd->stat_sn = conn->stat_sn++;
 	} else {
 		sg_off = cmd->write_data_done / PAGE_SIZE;
 		data_left = se_cmd->data_length - cmd->write_data_done;
@@ -2352,7 +2348,7 @@ isert_put_datain(struct iscsi_conn *conn, struct iscsi_cmd *cmd)
 	 * Build isert_conn->tx_desc for iSCSI response PDU and attach
 	 */
 	isert_create_send_desc(isert_conn, isert_cmd, &isert_cmd->tx_desc);
-	iscsit_build_rsp_pdu(cmd, conn, false, (struct iscsi_scsi_rsp *)
+	iscsit_build_rsp_pdu(cmd, conn, true, (struct iscsi_scsi_rsp *)
 			     &isert_cmd->tx_desc.iscsi_header);
 	isert_init_tx_hdrs(isert_conn, &isert_cmd->tx_desc);
 	isert_init_send_wr(isert_conn, isert_cmd,
-- 
cgit 


From 786235eeba0e1e85e5cbbb9f97d1087ad03dfa21 Mon Sep 17 00:00:00 2001
From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Date: Tue, 12 Nov 2013 15:06:45 -0800
Subject: kthread: make kthread_create() killable

Any user process callers of wait_for_completion() except global init
process might be chosen by the OOM killer while waiting for completion()
call by some other process which does memory allocation.  See
CVE-2012-4398 "kernel: request_module() OOM local DoS" can happen.

When such users are chosen by the OOM killer when they are waiting for
completion() in TASK_UNINTERRUPTIBLE, the system will be kept stressed
due to memory starvation because the OOM killer cannot kill such users.

kthread_create() is one of such users and this patch fixes the problem
for kthreadd by making kthread_create() killable - the same approach
used for fixing CVE-2012-4398.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Oleg Nesterov <oleg@redhat.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/kthread.c | 73 ++++++++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 55 insertions(+), 18 deletions(-)

diff --git a/kernel/kthread.c b/kernel/kthread.c
index 760e86df8c20..b5ae3ee860a9 100644
--- a/kernel/kthread.c
+++ b/kernel/kthread.c
@@ -33,7 +33,7 @@ struct kthread_create_info
 
 	/* Result passed back to kthread_create() from kthreadd. */
 	struct task_struct *result;
-	struct completion done;
+	struct completion *done;
 
 	struct list_head list;
 };
@@ -178,6 +178,7 @@ static int kthread(void *_create)
 	struct kthread_create_info *create = _create;
 	int (*threadfn)(void *data) = create->threadfn;
 	void *data = create->data;
+	struct completion *done;
 	struct kthread self;
 	int ret;
 
@@ -187,10 +188,16 @@ static int kthread(void *_create)
 	init_completion(&self.parked);
 	current->vfork_done = &self.exited;
 
+	/* If user was SIGKILLed, I release the structure. */
+	done = xchg(&create->done, NULL);
+	if (!done) {
+		kfree(create);
+		do_exit(-EINTR);
+	}
 	/* OK, tell user we're spawned, wait for stop or wakeup */
 	__set_current_state(TASK_UNINTERRUPTIBLE);
 	create->result = current;
-	complete(&create->done);
+	complete(done);
 	schedule();
 
 	ret = -EINTR;
@@ -223,8 +230,15 @@ static void create_kthread(struct kthread_create_info *create)
 	/* We want our own signal handler (we take no signals by default). */
 	pid = kernel_thread(kthread, create, CLONE_FS | CLONE_FILES | SIGCHLD);
 	if (pid < 0) {
+		/* If user was SIGKILLed, I release the structure. */
+		struct completion *done = xchg(&create->done, NULL);
+
+		if (!done) {
+			kfree(create);
+			return;
+		}
 		create->result = ERR_PTR(pid);
-		complete(&create->done);
+		complete(done);
 	}
 }
 
@@ -255,36 +269,59 @@ struct task_struct *kthread_create_on_node(int (*threadfn)(void *data),
 					   const char namefmt[],
 					   ...)
 {
-	struct kthread_create_info create;
-
-	create.threadfn = threadfn;
-	create.data = data;
-	create.node = node;
-	init_completion(&create.done);
+	DECLARE_COMPLETION_ONSTACK(done);
+	struct task_struct *task;
+	struct kthread_create_info *create = kmalloc(sizeof(*create),
+						     GFP_KERNEL);
+
+	if (!create)
+		return ERR_PTR(-ENOMEM);
+	create->threadfn = threadfn;
+	create->data = data;
+	create->node = node;
+	create->done = &done;
 
 	spin_lock(&kthread_create_lock);
-	list_add_tail(&create.list, &kthread_create_list);
+	list_add_tail(&create->list, &kthread_create_list);
 	spin_unlock(&kthread_create_lock);
 
 	wake_up_process(kthreadd_task);
-	wait_for_completion(&create.done);
-
-	if (!IS_ERR(create.result)) {
+	/*
+	 * Wait for completion in killable state, for I might be chosen by
+	 * the OOM killer while kthreadd is trying to allocate memory for
+	 * new kernel thread.
+	 */
+	if (unlikely(wait_for_completion_killable(&done))) {
+		/*
+		 * If I was SIGKILLed before kthreadd (or new kernel thread)
+		 * calls complete(), leave the cleanup of this structure to
+		 * that thread.
+		 */
+		if (xchg(&create->done, NULL))
+			return ERR_PTR(-ENOMEM);
+		/*
+		 * kthreadd (or new kernel thread) will call complete()
+		 * shortly.
+		 */
+		wait_for_completion(&done);
+	}
+	task = create->result;
+	if (!IS_ERR(task)) {
 		static const struct sched_param param = { .sched_priority = 0 };
 		va_list args;
 
 		va_start(args, namefmt);
-		vsnprintf(create.result->comm, sizeof(create.result->comm),
-			  namefmt, args);
+		vsnprintf(task->comm, sizeof(task->comm), namefmt, args);
 		va_end(args);
 		/*
 		 * root may have changed our (kthreadd's) priority or CPU mask.
 		 * The kernel thread should not inherit these properties.
 		 */
-		sched_setscheduler_nocheck(create.result, SCHED_NORMAL, &param);
-		set_cpus_allowed_ptr(create.result, cpu_all_mask);
+		sched_setscheduler_nocheck(task, SCHED_NORMAL, &param);
+		set_cpus_allowed_ptr(task, cpu_all_mask);
 	}
-	return create.result;
+	kfree(create);
+	return task;
 }
 EXPORT_SYMBOL(kthread_create_on_node);
 
-- 
cgit 


From 42b43341b045227c5ffca04c2d9424c77abed4fb Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Tue, 12 Nov 2013 15:06:46 -0800
Subject: sh64: kernel: use 'usp' instead of 'fn'

'fn' is not defined, according to the implementation copy_thread() in
'sh32', need use 'usp' instead of.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/sh/kernel/process_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index 174d124b419e..eac5947ac063 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -393,7 +393,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
 	if (unlikely(p->flags & PF_KTHREAD)) {
 		memset(childregs, 0, sizeof(struct pt_regs));
 		childregs->regs[2] = (unsigned long)arg;
-		childregs->regs[3] = (unsigned long)fn;
+		childregs->regs[3] = (unsigned long)usp;
 		childregs->sr = (1 << 30); /* not user_mode */
 		childregs->sr |= SR_FD; /* Invalidate FPU flag */
 		p->thread.pc = (unsigned long) ret_from_kernel_thread;
-- 
cgit 


From 8d28df813e5077913a60c61aaef2e6bf940d8cd9 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Tue, 12 Nov 2013 15:06:48 -0800
Subject: sh64: kernel: remove useless variable 'regs'

Remove useless variable 'regs' to avoid the related warnings (warning is
treated as error).

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/sh/kernel/process_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/sh/kernel/process_64.c b/arch/sh/kernel/process_64.c
index eac5947ac063..e2062e643341 100644
--- a/arch/sh/kernel/process_64.c
+++ b/arch/sh/kernel/process_64.c
@@ -374,7 +374,7 @@ asmlinkage void ret_from_kernel_thread(void);
 int copy_thread(unsigned long clone_flags, unsigned long usp,
 		unsigned long arg, struct task_struct *p)
 {
-	struct pt_regs *childregs, *regs = current_pt_regs();
+	struct pt_regs *childregs;
 
 #ifdef CONFIG_SH_FPU
 	/* can't happen for a kernel thread */
-- 
cgit 


From 72a0c5571351f5184195754d23db3e14495b2080 Mon Sep 17 00:00:00 2001
From: Mauro Carvalho Chehab <m.chehab@samsung.com>
Date: Tue, 12 Nov 2013 15:06:49 -0800
Subject: cris: media platform drivers: fix build

On cris arch, the functions below aren't defined:

  drivers/media/platform/sh_veu.c: In function 'sh_veu_reg_read':

  drivers/media/platform/sh_veu.c:228:2: error: implicit declaration of function 'ioread32' [-Werror=implicit-function-declaration]
  drivers/media/platform/sh_veu.c: In function 'sh_veu_reg_write':

  drivers/media/platform/sh_veu.c:234:2: error: implicit declaration of function 'iowrite32' [-Werror=implicit-function-declaration]
  drivers/media/platform/vsp1/vsp1.h: In function 'vsp1_read':
  drivers/media/platform/vsp1/vsp1.h:66:2: error: implicit declaration of function 'ioread32' [-Werror=implicit-function-declaration]
  drivers/media/platform/vsp1/vsp1.h: In function 'vsp1_write':
  drivers/media/platform/vsp1/vsp1.h:71:2: error: implicit declaration of function 'iowrite32' [-Werror=implicit-function-declaration]
  drivers/media/platform/vsp1/vsp1.h: In function 'vsp1_read':
  drivers/media/platform/vsp1/vsp1.h:66:2: error: implicit declaration of function 'ioread32' [-Werror=implicit-function-declaration]
  drivers/media/platform/vsp1/vsp1.h: In function 'vsp1_write':
  drivers/media/platform/vsp1/vsp1.h:71:2: error: implicit declaration of function 'iowrite32' [-Werror=implicit-function-declaration]
  drivers/media/platform/soc_camera/rcar_vin.c: In function 'rcar_vin_setup':
  drivers/media/platform/soc_camera/rcar_vin.c:284:3: error: implicit declaration of function 'iowrite32' [-Werror=implicit-function-declaration]

  drivers/media/platform/soc_camera/rcar_vin.c: In function 'rcar_vin_request_capture_stop':
  drivers/media/platform/soc_camera/rcar_vin.c:353:2: error: implicit declaration of function 'ioread32' [-Werror=implicit-function-declaration]

Yet, they're available, as CONFIG_GENERIC_IOMAP is defined.  What happens
is that asm/io.h was not including asm-generic/iomap.h.

Suggested-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/cris/include/asm/io.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/cris/include/asm/io.h b/arch/cris/include/asm/io.h
index 5d3047e5563b..4353cf239a13 100644
--- a/arch/cris/include/asm/io.h
+++ b/arch/cris/include/asm/io.h
@@ -3,6 +3,7 @@
 
 #include <asm/page.h>   /* for __va, __pa */
 #include <arch/io.h>
+#include <asm-generic/iomap.h>
 #include <linux/kernel.h>
 
 struct cris_io_operations
-- 
cgit 


From a2529ad9e5bed1935ac30cbe5b53de805485b171 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:06:50 -0800
Subject: drivers/iommu/omap-iopgtable.h: remove unneeded cast of void*

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/iommu/omap-iopgtable.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/omap-iopgtable.h b/drivers/iommu/omap-iopgtable.h
index f4003d568a92..b6f9a51746ca 100644
--- a/drivers/iommu/omap-iopgtable.h
+++ b/drivers/iommu/omap-iopgtable.h
@@ -95,4 +95,4 @@ static inline phys_addr_t omap_iommu_translate(u32 d, u32 va, u32 mask)
 #define iopte_offset(iopgd, da)	(iopgd_page_vaddr(iopgd) + iopte_index(da))
 
 #define to_iommu(dev)							\
-	((struct omap_iommu *)platform_get_drvdata(to_platform_device(dev)))
+	(platform_get_drvdata(to_platform_device(dev)))
-- 
cgit 


From 59c36455d061e200f386e1817362f6afd6265b6a Mon Sep 17 00:00:00 2001
From: Jamie Iles <jamie.iles@oracle.com>
Date: Tue, 12 Nov 2013 15:06:51 -0800
Subject: scripts/sortextable: support objects with more than 64K sections.

Building with a large config and -ffunction-sections results in a large
number of sections and sortextable needs to be able to handle that.
Implement support for > 64K sections as modpost does.

Signed-off-by: Jamie Iles <jamie.iles@oracle.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Michal Marek <mmarek@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/sortextable.c | 24 ++++++++++++++++++++++++
 scripts/sortextable.h | 26 +++++++++++++++++++++++---
 2 files changed, 47 insertions(+), 3 deletions(-)

diff --git a/scripts/sortextable.c b/scripts/sortextable.c
index 7c2310c5b996..5f7a8b663cb9 100644
--- a/scripts/sortextable.c
+++ b/scripts/sortextable.c
@@ -152,6 +152,30 @@ static void (*w2)(uint16_t, uint16_t *);
 
 typedef void (*table_sort_t)(char *, int);
 
+/*
+ * Move reserved section indices SHN_LORESERVE..SHN_HIRESERVE out of
+ * the way to -256..-1, to avoid conflicting with real section
+ * indices.
+ */
+#define SPECIAL(i) ((i) - (SHN_HIRESERVE + 1))
+
+static inline int is_shndx_special(unsigned int i)
+{
+	return i != SHN_XINDEX && i >= SHN_LORESERVE && i <= SHN_HIRESERVE;
+}
+
+/* Accessor for sym->st_shndx, hides ugliness of "64k sections" */
+static inline unsigned int get_secindex(unsigned int shndx,
+					unsigned int sym_offs,
+					const Elf32_Word *symtab_shndx_start)
+{
+	if (is_shndx_special(shndx))
+		return SPECIAL(shndx);
+	if (shndx != SHN_XINDEX)
+		return shndx;
+	return r(&symtab_shndx_start[sym_offs]);
+}
+
 /* 32 bit and 64 bit are very similar */
 #include "sortextable.h"
 #define SORTEXTABLE_64
diff --git a/scripts/sortextable.h b/scripts/sortextable.h
index f5eb43d42926..8fac3fd697a6 100644
--- a/scripts/sortextable.h
+++ b/scripts/sortextable.h
@@ -98,6 +98,8 @@ do_func(Elf_Ehdr *ehdr, char const *const fname, table_sort_t custom_sort)
 	Elf_Shdr *symtab_sec = NULL;
 	Elf_Shdr *extab_sec = NULL;
 	Elf_Sym *sym;
+	const Elf_Sym *symtab;
+	Elf32_Word *symtab_shndx_start = NULL;
 	Elf_Sym *sort_needed_sym;
 	Elf_Shdr *sort_needed_sec;
 	Elf_Rel *relocs = NULL;
@@ -109,11 +111,22 @@ do_func(Elf_Ehdr *ehdr, char const *const fname, table_sort_t custom_sort)
 	int extab_index = 0;
 	int i;
 	int idx;
+	unsigned int num_sections;
+	unsigned int secindex_strings;
 
 	shdr = (Elf_Shdr *)((char *)ehdr + _r(&ehdr->e_shoff));
-	shstrtab_sec = shdr + r2(&ehdr->e_shstrndx);
+
+	num_sections = r2(&ehdr->e_shnum);
+	if (num_sections == SHN_UNDEF)
+		num_sections = _r(&shdr[0].sh_size);
+
+	secindex_strings = r2(&ehdr->e_shstrndx);
+	if (secindex_strings == SHN_XINDEX)
+		secindex_strings = r(&shdr[0].sh_link);
+
+	shstrtab_sec = shdr + secindex_strings;
 	secstrtab = (const char *)ehdr + _r(&shstrtab_sec->sh_offset);
-	for (i = 0; i < r2(&ehdr->e_shnum); i++) {
+	for (i = 0; i < num_sections; i++) {
 		idx = r(&shdr[i].sh_name);
 		if (strcmp(secstrtab + idx, "__ex_table") == 0) {
 			extab_sec = shdr + i;
@@ -129,6 +142,9 @@ do_func(Elf_Ehdr *ehdr, char const *const fname, table_sort_t custom_sort)
 			symtab_sec = shdr + i;
 		if (strcmp(secstrtab + idx, ".strtab") == 0)
 			strtab_sec = shdr + i;
+		if (r(&shdr[i].sh_type) == SHT_SYMTAB_SHNDX)
+			symtab_shndx_start = (Elf32_Word *)(
+				(const char *)ehdr + _r(&shdr[i].sh_offset));
 	}
 	if (strtab_sec == NULL) {
 		fprintf(stderr,	"no .strtab in  file: %s\n", fname);
@@ -138,6 +154,8 @@ do_func(Elf_Ehdr *ehdr, char const *const fname, table_sort_t custom_sort)
 		fprintf(stderr,	"no .symtab in  file: %s\n", fname);
 		fail_file();
 	}
+	symtab = (const Elf_Sym *)((const char *)ehdr +
+				   _r(&symtab_sec->sh_offset));
 	if (extab_sec == NULL) {
 		fprintf(stderr,	"no __ex_table in  file: %s\n", fname);
 		fail_file();
@@ -176,7 +194,9 @@ do_func(Elf_Ehdr *ehdr, char const *const fname, table_sort_t custom_sort)
 			fname);
 		fail_file();
 	}
-	sort_needed_sec = &shdr[r2(&sort_needed_sym->st_shndx)];
+	sort_needed_sec = &shdr[get_secindex(r2(&sym->st_shndx),
+					     sort_needed_sym - symtab,
+					     symtab_shndx_start)];
 	sort_done_location = (void *)ehdr +
 		_r(&sort_needed_sec->sh_offset) +
 		_r(&sort_needed_sym->st_value) -
-- 
cgit 


From 06f9da6e826a0b459652b98a21541bca274bd440 Mon Sep 17 00:00:00 2001
From: Goldwyn Rodrigues <rgoldwyn@suse.de>
Date: Tue, 12 Nov 2013 15:06:52 -0800
Subject: fs/ocfs2: remove unnecessary variable bits_wanted from
 ocfs2_calc_extend_credits

Code cleanup to remove unnecessary variable passed but never used
to ocfs2_calc_extend_credits.

Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ocfs2/aops.c         |  3 +--
 fs/ocfs2/dir.c          |  4 ++--
 fs/ocfs2/file.c         |  3 +--
 fs/ocfs2/journal.h      |  3 +--
 fs/ocfs2/move_extents.c |  3 +--
 fs/ocfs2/refcounttree.c |  9 +++------
 fs/ocfs2/xattr.c        | 20 +++++++-------------
 7 files changed, 16 insertions(+), 29 deletions(-)

diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index f37d3c0e2053..c0d4797618ef 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -1802,8 +1802,7 @@ try_again:
 			data_ac->ac_resv = &OCFS2_I(inode)->ip_la_data_resv;
 
 		credits = ocfs2_calc_extend_credits(inode->i_sb,
-						    &di->id2.i_list,
-						    clusters_to_alloc);
+						    &di->id2.i_list);
 
 	}
 
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index 30544ce8e9f7..93b079115edc 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -3284,7 +3284,7 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb,
 		if (ocfs2_dir_resv_allowed(osb))
 			data_ac->ac_resv = &OCFS2_I(dir)->ip_la_data_resv;
 
-		credits = ocfs2_calc_extend_credits(sb, el, 1);
+		credits = ocfs2_calc_extend_credits(sb, el);
 	} else {
 		spin_unlock(&OCFS2_I(dir)->ip_lock);
 		credits = OCFS2_SIMPLE_DIR_EXTEND_CREDITS;
@@ -3716,7 +3716,7 @@ static int ocfs2_dx_dir_rebalance_credits(struct ocfs2_super *osb,
 {
 	int credits = ocfs2_clusters_to_blocks(osb->sb, 2);
 
-	credits += ocfs2_calc_extend_credits(osb->sb, &dx_root->dr_list, 1);
+	credits += ocfs2_calc_extend_credits(osb->sb, &dx_root->dr_list);
 	credits += ocfs2_quota_trans_credits(osb->sb);
 	return credits;
 }
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index d71903c6068b..67c037af301a 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -603,8 +603,7 @@ restart_all:
 		goto leave;
 	}
 
-	credits = ocfs2_calc_extend_credits(osb->sb, &fe->id2.i_list,
-					    clusters_to_add);
+	credits = ocfs2_calc_extend_credits(osb->sb, &fe->id2.i_list);
 	handle = ocfs2_start_trans(osb, credits);
 	if (IS_ERR(handle)) {
 		status = PTR_ERR(handle);
diff --git a/fs/ocfs2/journal.h b/fs/ocfs2/journal.h
index 0b479bab3671..9ff4e8cf9d97 100644
--- a/fs/ocfs2/journal.h
+++ b/fs/ocfs2/journal.h
@@ -524,8 +524,7 @@ static inline int ocfs2_calc_dxi_expand_credits(struct super_block *sb)
  * the result may be wrong.
  */
 static inline int ocfs2_calc_extend_credits(struct super_block *sb,
-					    struct ocfs2_extent_list *root_el,
-					    u32 bits_wanted)
+					    struct ocfs2_extent_list *root_el)
 {
 	int bitmap_blocks, sysfile_bitmap_blocks, extent_blocks;
 
diff --git a/fs/ocfs2/move_extents.c b/fs/ocfs2/move_extents.c
index 3d3f3c83065c..445678d9163c 100644
--- a/fs/ocfs2/move_extents.c
+++ b/fs/ocfs2/move_extents.c
@@ -201,8 +201,7 @@ static int ocfs2_lock_allocators_move_extents(struct inode *inode,
 		}
 	}
 
-	*credits += ocfs2_calc_extend_credits(osb->sb, et->et_root_el,
-					      clusters_to_move + 2);
+	*credits += ocfs2_calc_extend_credits(osb->sb, et->et_root_el);
 
 	mlog(0, "reserve metadata_blocks: %d, data_clusters: %u, credits: %d\n",
 	     extra_blocks, clusters_to_move, *credits);
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index bf4dfc14bb2c..0022192e7ac8 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -2502,8 +2502,7 @@ static int ocfs2_calc_refcount_meta_credits(struct super_block *sb,
 		ocfs2_init_refcount_extent_tree(&et, ci, ref_root_bh);
 		*meta_add += ocfs2_extend_meta_needed(et.et_root_el);
 		*credits += ocfs2_calc_extend_credits(sb,
-						      et.et_root_el,
-						      ref_blocks);
+						      et.et_root_el);
 	} else {
 		*credits += OCFS2_EXPAND_REFCOUNT_TREE_CREDITS;
 		*meta_add += 1;
@@ -2874,8 +2873,7 @@ static int ocfs2_lock_refcount_allocators(struct super_block *sb,
 		meta_add =
 			ocfs2_extend_meta_needed(et->et_root_el);
 
-	*credits += ocfs2_calc_extend_credits(sb, et->et_root_el,
-					      num_clusters + 2);
+	*credits += ocfs2_calc_extend_credits(sb, et->et_root_el);
 
 	ret = ocfs2_calc_refcount_meta_credits(sb, ref_ci, ref_root_bh,
 					       p_cluster, num_clusters,
@@ -3625,8 +3623,7 @@ int ocfs2_refcounted_xattr_delete_need(struct inode *inode,
 
 		ocfs2_init_refcount_extent_tree(&et, ref_ci, ref_root_bh);
 		*credits += ocfs2_calc_extend_credits(inode->i_sb,
-						      et.et_root_el,
-						      ref_blocks);
+						      et.et_root_el);
 	}
 
 out:
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index 6ce0686eab72..aaaab8ba82ab 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -754,8 +754,7 @@ static int ocfs2_xattr_extend_allocation(struct inode *inode,
 			BUG_ON(why == RESTART_META);
 
 			credits = ocfs2_calc_extend_credits(inode->i_sb,
-							    &vb->vb_xv->xr_list,
-							    clusters_to_add);
+							    &vb->vb_xv->xr_list);
 			status = ocfs2_extend_trans(handle, credits);
 			if (status < 0) {
 				status = -ENOMEM;
@@ -3040,8 +3039,7 @@ static int ocfs2_calc_xattr_set_need(struct inode *inode,
 		if (xi->xi_value_len > OCFS2_XATTR_INLINE_SIZE) {
 			clusters_add += new_clusters;
 			credits += ocfs2_calc_extend_credits(inode->i_sb,
-							&def_xv.xv.xr_list,
-							new_clusters);
+							&def_xv.xv.xr_list);
 		}
 
 		goto meta_guess;
@@ -3106,8 +3104,7 @@ static int ocfs2_calc_xattr_set_need(struct inode *inode,
 			if (!ocfs2_xattr_is_local(xe))
 				credits += ocfs2_calc_extend_credits(
 							inode->i_sb,
-							&def_xv.xv.xr_list,
-							new_clusters);
+							&def_xv.xv.xr_list);
 			goto out;
 		}
 	}
@@ -3132,9 +3129,7 @@ static int ocfs2_calc_xattr_set_need(struct inode *inode,
 			meta_add += ocfs2_extend_meta_needed(&xv->xr_list);
 			clusters_add += new_clusters - old_clusters;
 			credits += ocfs2_calc_extend_credits(inode->i_sb,
-							     &xv->xr_list,
-							     new_clusters -
-							     old_clusters);
+							     &xv->xr_list);
 			if (value_size >= OCFS2_XATTR_ROOT_SIZE)
 				goto out;
 		}
@@ -3180,7 +3175,7 @@ meta_guess:
 				 &xb->xb_attrs.xb_root.xt_list;
 			meta_add += ocfs2_extend_meta_needed(el);
 			credits += ocfs2_calc_extend_credits(inode->i_sb,
-							     el, 1);
+							     el);
 		} else
 			credits += OCFS2_SUBALLOC_ALLOC + 1;
 
@@ -6216,8 +6211,7 @@ static int ocfs2_value_metas_in_xattr_header(struct super_block *sb,
 			  le16_to_cpu(xv->xr_list.l_next_free_rec);
 
 		*credits += ocfs2_calc_extend_credits(sb,
-						&def_xv.xv.xr_list,
-						le32_to_cpu(xv->xr_clusters));
+						&def_xv.xv.xr_list);
 
 		/*
 		 * If the value is a tree with depth > 1, We don't go deep
@@ -6782,7 +6776,7 @@ static int ocfs2_lock_reflink_xattr_rec_allocators(
 		metas.num_metas += ocfs2_extend_meta_needed(xt_et->et_root_el);
 
 	*credits += ocfs2_calc_extend_credits(osb->sb,
-					      xt_et->et_root_el, len);
+					      xt_et->et_root_el);
 
 	if (metas.num_metas) {
 		ret = ocfs2_reserve_new_metadata_blocks(osb, metas.num_metas,
-- 
cgit 


From f0cb0f0bca233935ac70707d47f5885419a7fd31 Mon Sep 17 00:00:00 2001
From: Junxiao Bi <junxiao.bi@oracle.com>
Date: Tue, 12 Nov 2013 15:06:53 -0800
Subject: fs/ocfs2/file.c: fix wrong comment

Unwritten extent only exists for file systems which support holes.  But
the comment said was opposite meaning and also the comment is not very
clear, so rephase it.

Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ocfs2/file.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 67c037af301a..6fff128cad16 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -580,7 +580,7 @@ static int __ocfs2_extend_allocation(struct inode *inode, u32 logical_start,
 	int did_quota = 0;
 
 	/*
-	 * This function only exists for file systems which don't
+	 * Unwritten extent only exists for file systems which
 	 * support holes.
 	 */
 	BUG_ON(mark_unwritten && !ocfs2_sparse_alloc(osb));
-- 
cgit 


From 7391a294b861bf2c3b762dfdcf61b9c5f1bffa1f Mon Sep 17 00:00:00 2001
From: Rui Xiang <rui.xiang@huawei.com>
Date: Tue, 12 Nov 2013 15:06:54 -0800
Subject: ocfs2: return ENOMEM when sb_getblk() fails

The only reason for sb_getblk() failing is if it can't allocate the
buffer_head.  So return ENOMEM instead when it fails.

[joseph.qi@huawei.com: ocfs2_symlink_get_block() and ocfs2_read_blocks_sync() and ocfs2_read_blocks() need the same change]
Signed-off-by: Rui Xiang <rui.xiang@huawei.com>
Reviewed-by: Jie Liu <jeff.liu@oracle.com>
Reviewed-by: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Joseph Qi <joseph.qi@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ocfs2/alloc.c          | 2 +-
 fs/ocfs2/aops.c           | 2 ++
 fs/ocfs2/buffer_head_io.c | 4 ++--
 fs/ocfs2/dir.c            | 8 ++++----
 fs/ocfs2/namei.c          | 2 +-
 fs/ocfs2/refcounttree.c   | 6 +++---
 fs/ocfs2/suballoc.c       | 4 ++--
 fs/ocfs2/super.c          | 4 ++--
 fs/ocfs2/xattr.c          | 2 +-
 9 files changed, 18 insertions(+), 16 deletions(-)

diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index 17e6bdde96c5..dc7411fe185d 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -1025,7 +1025,7 @@ static int ocfs2_create_new_meta_bhs(handle_t *handle,
 		for(i = count;  i < (num_got + count); i++) {
 			bhs[i] = sb_getblk(osb->sb, first_blkno);
 			if (bhs[i] == NULL) {
-				status = -EIO;
+				status = -ENOMEM;
 				mlog_errno(status);
 				goto bail;
 			}
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index c0d4797618ef..c20360002f29 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -80,6 +80,7 @@ static int ocfs2_symlink_get_block(struct inode *inode, sector_t iblock,
 
 	if ((u64)iblock >= ocfs2_clusters_to_blocks(inode->i_sb,
 						    le32_to_cpu(fe->i_clusters))) {
+		err = -ENOMEM;
 		mlog(ML_ERROR, "block offset is outside the allocated size: "
 		     "%llu\n", (unsigned long long)iblock);
 		goto bail;
@@ -92,6 +93,7 @@ static int ocfs2_symlink_get_block(struct inode *inode, sector_t iblock,
 			    iblock;
 		buffer_cache_bh = sb_getblk(osb->sb, blkno);
 		if (!buffer_cache_bh) {
+			err = -ENOMEM;
 			mlog(ML_ERROR, "couldn't getblock for symlink!\n");
 			goto bail;
 		}
diff --git a/fs/ocfs2/buffer_head_io.c b/fs/ocfs2/buffer_head_io.c
index 5d18ad10c27f..5b704c63a103 100644
--- a/fs/ocfs2/buffer_head_io.c
+++ b/fs/ocfs2/buffer_head_io.c
@@ -115,7 +115,7 @@ int ocfs2_read_blocks_sync(struct ocfs2_super *osb, u64 block,
 		if (bhs[i] == NULL) {
 			bhs[i] = sb_getblk(osb->sb, block++);
 			if (bhs[i] == NULL) {
-				status = -EIO;
+				status = -ENOMEM;
 				mlog_errno(status);
 				goto bail;
 			}
@@ -214,7 +214,7 @@ int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr,
 			bhs[i] = sb_getblk(sb, block++);
 			if (bhs[i] == NULL) {
 				ocfs2_metadata_cache_io_unlock(ci);
-				status = -EIO;
+				status = -ENOMEM;
 				mlog_errno(status);
 				goto bail;
 			}
diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c
index 93b079115edc..91a7e85ac8fd 100644
--- a/fs/ocfs2/dir.c
+++ b/fs/ocfs2/dir.c
@@ -2349,7 +2349,7 @@ static int ocfs2_dx_dir_attach_index(struct ocfs2_super *osb,
 
 	dx_root_bh = sb_getblk(osb->sb, dr_blkno);
 	if (dx_root_bh == NULL) {
-		ret = -EIO;
+		ret = -ENOMEM;
 		goto out;
 	}
 	ocfs2_set_new_buffer_uptodate(INODE_CACHE(dir), dx_root_bh);
@@ -2422,7 +2422,7 @@ static int ocfs2_dx_dir_format_cluster(struct ocfs2_super *osb,
 	for (i = 0; i < num_dx_leaves; i++) {
 		bh = sb_getblk(osb->sb, start_blk + i);
 		if (bh == NULL) {
-			ret = -EIO;
+			ret = -ENOMEM;
 			goto out;
 		}
 		dx_leaves[i] = bh;
@@ -2929,7 +2929,7 @@ static int ocfs2_expand_inline_dir(struct inode *dir, struct buffer_head *di_bh,
 	blkno = ocfs2_clusters_to_blocks(dir->i_sb, bit_off);
 	dirdata_bh = sb_getblk(sb, blkno);
 	if (!dirdata_bh) {
-		ret = -EIO;
+		ret = -ENOMEM;
 		mlog_errno(ret);
 		goto out_commit;
 	}
@@ -3159,7 +3159,7 @@ static int ocfs2_do_extend_dir(struct super_block *sb,
 
 	*new_bh = sb_getblk(sb, p_blkno);
 	if (!*new_bh) {
-		status = -EIO;
+		status = -ENOMEM;
 		mlog_errno(status);
 		goto bail;
 	}
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index be3f8676a438..4f791f6d27d0 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -489,7 +489,7 @@ static int __ocfs2_mknod_locked(struct inode *dir,
 
 	*new_fe_bh = sb_getblk(osb->sb, fe_blkno);
 	if (!*new_fe_bh) {
-		status = -EIO;
+		status = -ENOMEM;
 		mlog_errno(status);
 		goto leave;
 	}
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 0022192e7ac8..70d083e60d40 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -1310,7 +1310,7 @@ static int ocfs2_expand_inline_ref_root(handle_t *handle,
 
 	new_bh = sb_getblk(sb, blkno);
 	if (new_bh == NULL) {
-		ret = -EIO;
+		ret = -ENOMEM;
 		mlog_errno(ret);
 		goto out;
 	}
@@ -1561,7 +1561,7 @@ static int ocfs2_new_leaf_refcount_block(handle_t *handle,
 
 	new_bh = sb_getblk(sb, blkno);
 	if (new_bh == NULL) {
-		ret = -EIO;
+		ret = -ENOMEM;
 		mlog_errno(ret);
 		goto out;
 	}
@@ -3029,7 +3029,7 @@ int ocfs2_duplicate_clusters_by_jbd(handle_t *handle,
 	for (i = 0; i < blocks; i++, old_block++, new_block++) {
 		new_bh = sb_getblk(osb->sb, new_block);
 		if (new_bh == NULL) {
-			ret = -EIO;
+			ret = -ENOMEM;
 			mlog_errno(ret);
 			break;
 		}
diff --git a/fs/ocfs2/suballoc.c b/fs/ocfs2/suballoc.c
index 5397c07ce608..2c91452c4047 100644
--- a/fs/ocfs2/suballoc.c
+++ b/fs/ocfs2/suballoc.c
@@ -481,7 +481,7 @@ ocfs2_block_group_alloc_contig(struct ocfs2_super *osb, handle_t *handle,
 
 	bg_bh = sb_getblk(osb->sb, bg_blkno);
 	if (!bg_bh) {
-		status = -EIO;
+		status = -ENOMEM;
 		mlog_errno(status);
 		goto bail;
 	}
@@ -661,7 +661,7 @@ ocfs2_block_group_alloc_discontig(handle_t *handle,
 
 	bg_bh = sb_getblk(osb->sb, bg_blkno);
 	if (!bg_bh) {
-		status = -EIO;
+		status = -ENOMEM;
 		mlog_errno(status);
 		goto bail;
 	}
diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c
index d4e81e4a9b04..c41492957aa5 100644
--- a/fs/ocfs2/super.c
+++ b/fs/ocfs2/super.c
@@ -1848,8 +1848,8 @@ static int ocfs2_get_sector(struct super_block *sb,
 
 	*bh = sb_getblk(sb, block);
 	if (!*bh) {
-		mlog_errno(-EIO);
-		return -EIO;
+		mlog_errno(-ENOMEM);
+		return -ENOMEM;
 	}
 	lock_buffer(*bh);
 	if (!buffer_dirty(*bh))
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index aaaab8ba82ab..82257299d5ea 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -377,7 +377,7 @@ static int ocfs2_init_xattr_bucket(struct ocfs2_xattr_bucket *bucket,
 		bucket->bu_bhs[i] = sb_getblk(bucket->bu_inode->i_sb,
 					      xb_blkno + i);
 		if (!bucket->bu_bhs[i]) {
-			rc = -EIO;
+			rc = -ENOMEM;
 			mlog_errno(rc);
 			break;
 		}
-- 
cgit 


From 58796207cf09552706b0c3e0669f2ce52ea6cee1 Mon Sep 17 00:00:00 2001
From: Rui Xiang <rui.xiang@huawei.com>
Date: Tue, 12 Nov 2013 15:06:55 -0800
Subject: ocfs2: add necessary check in case sb_getblk() fails

sb_getblk() may return an err, so add a check for bh.

[joseph.qi@huawei.com: also add a check after calling sb_getblk() in ocfs2_create_xattr_block()]
Signed-off-by: Rui Xiang <rui.xiang@huawei.com>
Reviewed-by: Jie Liu <jeff.liu@oracle.com>
Reviewed-by: Mark Fasheh <mfasheh@suse.de>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Joseph Qi <joseph.qi@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ocfs2/refcounttree.c | 5 +++++
 fs/ocfs2/xattr.c        | 6 ++++++
 2 files changed, 11 insertions(+)

diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 70d083e60d40..55767e1ba724 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -612,6 +612,11 @@ static int ocfs2_create_refcount_tree(struct inode *inode,
 	}
 
 	new_bh = sb_getblk(inode->i_sb, first_blkno);
+	if (!new_bh) {
+		ret = -ENOMEM;
+		mlog_errno(ret);
+		goto out_commit;
+	}
 	ocfs2_set_new_buffer_uptodate(&new_tree->rf_ci, new_bh);
 
 	ret = ocfs2_journal_access_rb(handle, &new_tree->rf_ci, new_bh,
diff --git a/fs/ocfs2/xattr.c b/fs/ocfs2/xattr.c
index 82257299d5ea..f0a1326d9bba 100644
--- a/fs/ocfs2/xattr.c
+++ b/fs/ocfs2/xattr.c
@@ -2864,6 +2864,12 @@ static int ocfs2_create_xattr_block(struct inode *inode,
 	}
 
 	new_bh = sb_getblk(inode->i_sb, first_blkno);
+	if (!new_bh) {
+		ret = -ENOMEM;
+		mlog_errno(ret);
+		goto end;
+	}
+
 	ocfs2_set_new_buffer_uptodate(INODE_CACHE(inode), new_bh);
 
 	ret = ocfs2_journal_access_xb(ctxt->handle, INODE_CACHE(inode),
-- 
cgit 


From 910bffe0861c956096c31ad7e887cc23169955ed Mon Sep 17 00:00:00 2001
From: Joel Becker <jlbec@evilplan.org>
Date: Tue, 12 Nov 2013 15:06:57 -0800
Subject: ocfs2: don't spam on -EDQUOT
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

-EDQUOT is a user-visible error, not a logic problem.  Teach mlog_errno()
to ignore it like it ignores -ENOSPC, etc.

Signed-off-by: Joel Becker <jlbec@evilplan.org>
Reviewed-by: Jan Kara <jack@suse.cz>
Reported-by: Marek Królikowski <admin@wset.edu.pl>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ocfs2/cluster/masklog.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/ocfs2/cluster/masklog.h b/fs/ocfs2/cluster/masklog.h
index baa2b9ef7eef..2260fb9e6508 100644
--- a/fs/ocfs2/cluster/masklog.h
+++ b/fs/ocfs2/cluster/masklog.h
@@ -199,7 +199,8 @@ extern struct mlog_bits mlog_and_bits, mlog_not_bits;
 #define mlog_errno(st) do {						\
 	int _st = (st);							\
 	if (_st != -ERESTARTSYS && _st != -EINTR &&			\
-	    _st != AOP_TRUNCATED_PAGE && _st != -ENOSPC)		\
+	    _st != AOP_TRUNCATED_PAGE && _st != -ENOSPC &&		\
+	    _st != -EDQUOT)						\
 		mlog(ML_ERROR, "status = %lld\n", (long long)_st);	\
 } while (0)
 
-- 
cgit 


From a8f70de37bbb991033208edff7758d997d68db37 Mon Sep 17 00:00:00 2001
From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Tue, 12 Nov 2013 15:06:58 -0800
Subject: ocfs2: use bitmap_weight()

Use bitmap_weight() instead of reinventing the wheel.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ocfs2/cluster/heartbeat.c | 22 +++++++---------------
 1 file changed, 7 insertions(+), 15 deletions(-)

diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index 363f0dcc924f..292a13b05b6e 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -35,6 +35,7 @@
 #include <linux/time.h>
 #include <linux/debugfs.h>
 #include <linux/slab.h>
+#include <linux/bitmap.h>
 
 #include "heartbeat.h"
 #include "tcp.h"
@@ -282,15 +283,6 @@ struct o2hb_bio_wait_ctxt {
 	int               wc_error;
 };
 
-static int o2hb_pop_count(void *map, int count)
-{
-	int i = -1, pop = 0;
-
-	while ((i = find_next_bit(map, count, i + 1)) < count)
-		pop++;
-	return pop;
-}
-
 static void o2hb_write_timeout(struct work_struct *work)
 {
 	int failed, quorum;
@@ -307,9 +299,9 @@ static void o2hb_write_timeout(struct work_struct *work)
 		spin_lock_irqsave(&o2hb_live_lock, flags);
 		if (test_bit(reg->hr_region_num, o2hb_quorum_region_bitmap))
 			set_bit(reg->hr_region_num, o2hb_failed_region_bitmap);
-		failed = o2hb_pop_count(&o2hb_failed_region_bitmap,
+		failed = bitmap_weight(o2hb_failed_region_bitmap,
 					O2NM_MAX_REGIONS);
-		quorum = o2hb_pop_count(&o2hb_quorum_region_bitmap,
+		quorum = bitmap_weight(o2hb_quorum_region_bitmap,
 					O2NM_MAX_REGIONS);
 		spin_unlock_irqrestore(&o2hb_live_lock, flags);
 
@@ -765,7 +757,7 @@ static void o2hb_set_quorum_device(struct o2hb_region *reg)
 	 * If global heartbeat active, unpin all regions if the
 	 * region count > CUT_OFF
 	 */
-	if (o2hb_pop_count(&o2hb_quorum_region_bitmap,
+	if (bitmap_weight(o2hb_quorum_region_bitmap,
 			   O2NM_MAX_REGIONS) > O2HB_PIN_CUT_OFF)
 		o2hb_region_unpin(NULL);
 unlock:
@@ -1829,7 +1821,7 @@ static ssize_t o2hb_region_dev_write(struct o2hb_region *reg,
 	live_threshold = O2HB_LIVE_THRESHOLD;
 	if (o2hb_global_heartbeat_active()) {
 		spin_lock(&o2hb_live_lock);
-		if (o2hb_pop_count(&o2hb_region_bitmap, O2NM_MAX_REGIONS) == 1)
+		if (bitmap_weight(o2hb_region_bitmap, O2NM_MAX_REGIONS) == 1)
 			live_threshold <<= 1;
 		spin_unlock(&o2hb_live_lock);
 	}
@@ -2180,7 +2172,7 @@ static void o2hb_heartbeat_group_drop_item(struct config_group *group,
 	if (!o2hb_dependent_users)
 		goto unlock;
 
-	if (o2hb_pop_count(&o2hb_quorum_region_bitmap,
+	if (bitmap_weight(o2hb_quorum_region_bitmap,
 			   O2NM_MAX_REGIONS) <= O2HB_PIN_CUT_OFF)
 		o2hb_region_pin(NULL);
 
@@ -2480,7 +2472,7 @@ static int o2hb_region_inc_user(const char *region_uuid)
 	if (o2hb_dependent_users > 1)
 		goto unlock;
 
-	if (o2hb_pop_count(&o2hb_quorum_region_bitmap,
+	if (bitmap_weight(o2hb_quorum_region_bitmap,
 			   O2NM_MAX_REGIONS) <= O2HB_PIN_CUT_OFF)
 		ret = o2hb_region_pin(NULL);
 
-- 
cgit 


From 750e3c6581304c7dff813ac2317f5d733f84cb23 Mon Sep 17 00:00:00 2001
From: Xue jiufei <xuejiufei@huawei.com>
Date: Tue, 12 Nov 2013 15:06:59 -0800
Subject: ocfs2: skip locks in the blocked list

A parallel umount on 4 nodes triggered a bug in
dlm_process_recovery_date().  Here's the situation:

Receiving MIG_LOCKRES message, A node processes the locks in migratable
lockres.  It copys lvb from migratable lockres when processing the first
valid lock.

If there is a lock in the blocked list with the EX level, it triggers the
BUG.  Since valid lvbs are set when locks are granted with EX or PR
levels, locks in the blocked list cannot have valid lvbs.  Therefore I
think we should skip the locks in the blocked list.

Signed-off-by: Xuejiufei <xuejiufei@huawei.com>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ocfs2/dlm/dlmrecovery.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c
index 0b5adca1b178..7035af09cc03 100644
--- a/fs/ocfs2/dlm/dlmrecovery.c
+++ b/fs/ocfs2/dlm/dlmrecovery.c
@@ -1886,6 +1886,13 @@ static int dlm_process_recovery_data(struct dlm_ctxt *dlm,
 		if (ml->type == LKM_NLMODE)
 			goto skip_lvb;
 
+		/*
+		 * If the lock is in the blocked list it can't have a valid lvb,
+		 * so skip it
+		 */
+		if (ml->list == DLM_BLOCKED_LIST)
+			goto skip_lvb;
+
 		if (!dlm_lvb_is_empty(mres->lvb)) {
 			if (lksb->flags & DLM_LKSB_PUT_LVB) {
 				/* other node was trying to update
-- 
cgit 


From fae477b6f005d6bd8a6fb3f052b30d55cfa70c26 Mon Sep 17 00:00:00 2001
From: Xue jiufei <xuejiufei@huawei.com>
Date: Tue, 12 Nov 2013 15:07:00 -0800
Subject: ocfs2: delay migration when the lockres is in migration state

We trigger a bug in __dlm_lockres_reserve_ast() when we parallel umount 4
nodes.  The situation is as follows:

1) Node A migrate all lockres it owned(eg.  lockres A) to other nodes
   say node B when it umounts.

2) Receiving MIG_LOCKRES message from A, Node B masters the lockres A
   with DLM_LOCK_RES_MIGRATING state set.

3) Then we umount ocfs2 on node B.  It also should migrate lockres A to
   another node, say node C.  But now, DLM_LOCK_RES_MIGRATING state of
   lockers A is not cleared.  Node B triggered the BUG on lockres with
   state DLM_LOCK_RES_MIGRATING.

Signed-off-by: Xuejiufei <xuejiufei@huawei.com>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Tariq Saeed <tariq.x.saeed@oracle.com>
Cc: Srinivas Eeda <srinivas.eeda@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ocfs2/dlm/dlmmaster.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index cf0f103963b1..5a0ef78fe029 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -2354,6 +2354,10 @@ static int dlm_is_lockres_migrateable(struct dlm_ctxt *dlm,
 
 	assert_spin_locked(&res->spinlock);
 
+	/* delay migration when the lockres is in MIGRATING state */
+	if (res->state & DLM_LOCK_RES_MIGRATING)
+		return 0;
+
 	if (res->owner != dlm->node_num)
 		return 0;
 
-- 
cgit 


From 518df6bdf38559247ee90b9e59a40fae779d57d0 Mon Sep 17 00:00:00 2001
From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Tue, 12 Nov 2013 15:07:01 -0800
Subject: ocfs2: use find_last_bit()

We already have find_last_bit().  So just use it as described in the
comment.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ocfs2/cluster/heartbeat.c | 18 ++----------------
 1 file changed, 2 insertions(+), 16 deletions(-)

diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c
index 292a13b05b6e..73920ffda05b 100644
--- a/fs/ocfs2/cluster/heartbeat.c
+++ b/fs/ocfs2/cluster/heartbeat.c
@@ -946,23 +946,9 @@ out:
 	return changed;
 }
 
-/* This could be faster if we just implmented a find_last_bit, but I
- * don't think the circumstances warrant it. */
-static int o2hb_highest_node(unsigned long *nodes,
-			     int numbits)
+static int o2hb_highest_node(unsigned long *nodes, int numbits)
 {
-	int highest, node;
-
-	highest = numbits;
-	node = -1;
-	while ((node = find_next_bit(nodes, numbits, node + 1)) != -1) {
-		if (node >= numbits)
-			break;
-
-		highest = node;
-	}
-
-	return highest;
+	return find_last_bit(nodes, numbits);
 }
 
 static int o2hb_do_disk_heartbeat(struct o2hb_region *reg)
-- 
cgit 


From 728b98059a2f19393f906ba4febc0f2d1d15f280 Mon Sep 17 00:00:00 2001
From: Junxiao Bi <junxiao.bi@oracle.com>
Date: Tue, 12 Nov 2013 15:07:02 -0800
Subject: ocfs2: break useless while loop

Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Signed-off-by: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ocfs2/dlm/dlmmaster.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/ocfs2/dlm/dlmmaster.c b/fs/ocfs2/dlm/dlmmaster.c
index 5a0ef78fe029..af3f7aa73e13 100644
--- a/fs/ocfs2/dlm/dlmmaster.c
+++ b/fs/ocfs2/dlm/dlmmaster.c
@@ -1885,8 +1885,10 @@ ok:
 			 * up nodes that this node contacted */
 			while ((nn = find_next_bit (mle->response_map, O2NM_MAX_NODES,
 						    nn+1)) < O2NM_MAX_NODES) {
-				if (nn != dlm->node_num && nn != assert->node_idx)
+				if (nn != dlm->node_num && nn != assert->node_idx) {
 					master_request = 1;
+					break;
+				}
 			}
 		}
 		mle->master = assert->node_idx;
-- 
cgit 


From eedd40e1cad4217c9b7e2577debcdd0c48732cc3 Mon Sep 17 00:00:00 2001
From: Younger Liu <younger.liu@huawei.com>
Date: Tue, 12 Nov 2013 15:07:03 -0800
Subject: ocfs2: rollback transaction in ocfs2_group_add()

If ocfs2_journal_access_di() fails, group->bg_next_group should rollback.
Otherwise, there would be a inconsistency between group_bh and main_bm_bh.

Signed-off-by: Younger Liu <younger.liu@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Acked-by: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ocfs2/resize.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/fs/ocfs2/resize.c b/fs/ocfs2/resize.c
index ec55add7604a..376750f7883e 100644
--- a/fs/ocfs2/resize.c
+++ b/fs/ocfs2/resize.c
@@ -469,6 +469,7 @@ int ocfs2_group_add(struct inode *inode, struct ocfs2_new_group_input *input)
 	struct ocfs2_chain_list *cl;
 	struct ocfs2_chain_rec *cr;
 	u16 cl_bpc;
+	u64 bg_ptr;
 
 	if (ocfs2_is_hard_readonly(osb) || ocfs2_is_soft_readonly(osb))
 		return -EROFS;
@@ -538,12 +539,14 @@ int ocfs2_group_add(struct inode *inode, struct ocfs2_new_group_input *input)
 	}
 
 	group = (struct ocfs2_group_desc *)group_bh->b_data;
+	bg_ptr = le64_to_cpu(group->bg_next_group);
 	group->bg_next_group = cr->c_blkno;
 	ocfs2_journal_dirty(handle, group_bh);
 
 	ret = ocfs2_journal_access_di(handle, INODE_CACHE(main_bm_inode),
 				      main_bm_bh, OCFS2_JOURNAL_ACCESS_WRITE);
 	if (ret < 0) {
+		group->bg_next_group = cpu_to_le64(bg_ptr);
 		mlog_errno(ret);
 		goto out_commit;
 	}
-- 
cgit 


From 8abaae8d85d4e1de0fcc81b733ba04a5d318ba7a Mon Sep 17 00:00:00 2001
From: Younger Liu <younger.liu@huawei.com>
Date: Tue, 12 Nov 2013 15:07:04 -0800
Subject: ocfs2: do not call brelse() if group_bh is not initialized in
 ocfs2_group_add()

If group_bh is not initialized, there is no need to release.  This
problem does not cause anything wrong, but the patch would make the code
more logical.

Signed-off-by: Younger Liu <younger.liu@huawei.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Acked-by: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ocfs2/resize.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/fs/ocfs2/resize.c b/fs/ocfs2/resize.c
index 376750f7883e..822ebc10f281 100644
--- a/fs/ocfs2/resize.c
+++ b/fs/ocfs2/resize.c
@@ -514,7 +514,7 @@ int ocfs2_group_add(struct inode *inode, struct ocfs2_new_group_input *input)
 	ret = ocfs2_verify_group_and_input(main_bm_inode, fe, input, group_bh);
 	if (ret) {
 		mlog_errno(ret);
-		goto out_unlock;
+		goto out_free_group_bh;
 	}
 
 	trace_ocfs2_group_add((unsigned long long)input->group,
@@ -524,7 +524,7 @@ int ocfs2_group_add(struct inode *inode, struct ocfs2_new_group_input *input)
 	if (IS_ERR(handle)) {
 		mlog_errno(PTR_ERR(handle));
 		ret = -EINVAL;
-		goto out_unlock;
+		goto out_free_group_bh;
 	}
 
 	cl_bpc = le16_to_cpu(fe->id2.i_chain.cl_bpc);
@@ -577,8 +577,11 @@ int ocfs2_group_add(struct inode *inode, struct ocfs2_new_group_input *input)
 
 out_commit:
 	ocfs2_commit_trans(osb, handle);
-out_unlock:
+
+out_free_group_bh:
 	brelse(group_bh);
+
+out_unlock:
 	brelse(main_bm_bh);
 
 	ocfs2_inode_unlock(main_bm_inode, 1);
-- 
cgit 


From bfbca926d67c9bf3212d1077c6afd48d2995a285 Mon Sep 17 00:00:00 2001
From: Younger Liu <younger.liu@huawei.com>
Date: Tue, 12 Nov 2013 15:07:05 -0800
Subject: ocfs2: add missing errno in ocfs2_ioctl_move_extents()

If the file is not regular or writeable, it should return errno(EPERM).

This patch is based on 85a258b70d ("ocfs2: fix error handling in
ocfs2_ioctl_move_extents()").

Signed-off-by: Younger Liu <younger.liu@huawei.com>
Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Jie Liu <jeff.liu@oracle.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ocfs2/move_extents.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/fs/ocfs2/move_extents.c b/fs/ocfs2/move_extents.c
index 445678d9163c..631a98213474 100644
--- a/fs/ocfs2/move_extents.c
+++ b/fs/ocfs2/move_extents.c
@@ -1066,8 +1066,10 @@ int ocfs2_ioctl_move_extents(struct file *filp, void __user *argp)
 	if (status)
 		return status;
 
-	if ((!S_ISREG(inode->i_mode)) || !(filp->f_mode & FMODE_WRITE))
+	if ((!S_ISREG(inode->i_mode)) || !(filp->f_mode & FMODE_WRITE)) {
+		status = -EPERM;
 		goto out_drop;
+	}
 
 	if (inode->i_flags & (S_IMMUTABLE|S_APPEND)) {
 		status = -EPERM;
@@ -1089,8 +1091,10 @@ int ocfs2_ioctl_move_extents(struct file *filp, void __user *argp)
 		goto out_free;
 	}
 
-	if (range.me_start > i_size_read(inode))
+	if (range.me_start > i_size_read(inode)) {
+		status = -EINVAL;
 		goto out_free;
+	}
 
 	if (range.me_start + range.me_len > i_size_read(inode))
 			range.me_len = i_size_read(inode) - range.me_start;
-- 
cgit 


From b1214e4757b7d5fcea483b927e130361d41430a5 Mon Sep 17 00:00:00 2001
From: Xue jiufei <xuejiufei@huawei.com>
Date: Tue, 12 Nov 2013 15:07:06 -0800
Subject: ocfs2: fix possible double free in ocfs2_write_begin_nolock

When ocfs2_write_cluster_by_desc() failed in ocfs2_write_begin_nolock()
because of ENOSPC, it goes to out_quota, freeing data_ac(meta_ac).  Then
it calls ocfs2_try_to_free_truncate_log() to free space.  If enough
space freed, it will try to write again.  Unfortunately, some error
happenes before ocfs2_lock_allocators(), it goes to out and free
data_ac(meta_ac) again.

Signed-off-by: joyce <xuejiufei@huawei.com>
Reviewed-by: Jie Liu <jeff.liu@oracle.com>
Acked-by: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ocfs2/aops.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index c20360002f29..f959a1532767 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -1898,10 +1898,14 @@ out_commit:
 out:
 	ocfs2_free_write_ctxt(wc);
 
-	if (data_ac)
+	if (data_ac) {
 		ocfs2_free_alloc_context(data_ac);
-	if (meta_ac)
+		data_ac = NULL;
+	}
+	if (meta_ac) {
 		ocfs2_free_alloc_context(meta_ac);
+		meta_ac = NULL;
+	}
 
 	if (ret == -ENOSPC && try_free) {
 		/*
-- 
cgit 


From d00d2f8ab9f20f8e6a0fc3804847b418498d80b8 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 12 Nov 2013 15:07:07 -0800
Subject: ocfs2: convert use of typedef ctl_table to struct ctl_table

This typedef is unnecessary and should just be removed.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Acked-by: Joel Becker <jlbec@evilplan.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ocfs2/stackglue.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/fs/ocfs2/stackglue.c b/fs/ocfs2/stackglue.c
index 39abf89697ed..cb7ec0b63ddc 100644
--- a/fs/ocfs2/stackglue.c
+++ b/fs/ocfs2/stackglue.c
@@ -643,7 +643,7 @@ error:
 
 #define FS_OCFS2_NM		1
 
-static ctl_table ocfs2_nm_table[] = {
+static struct ctl_table ocfs2_nm_table[] = {
 	{
 		.procname	= "hb_ctl_path",
 		.data		= ocfs2_hb_ctl_path,
@@ -654,7 +654,7 @@ static ctl_table ocfs2_nm_table[] = {
 	{ }
 };
 
-static ctl_table ocfs2_mod_table[] = {
+static struct ctl_table ocfs2_mod_table[] = {
 	{
 		.procname	= "nm",
 		.data		= NULL,
@@ -665,7 +665,7 @@ static ctl_table ocfs2_mod_table[] = {
 	{ }
 };
 
-static ctl_table ocfs2_kern_table[] = {
+static struct ctl_table ocfs2_kern_table[] = {
 	{
 		.procname	= "ocfs2",
 		.data		= NULL,
@@ -676,7 +676,7 @@ static ctl_table ocfs2_kern_table[] = {
 	{ }
 };
 
-static ctl_table ocfs2_root_table[] = {
+static struct ctl_table ocfs2_root_table[] = {
 	{
 		.procname	= "fs",
 		.data		= NULL,
-- 
cgit 


From 41ecc345984bcc8bf341a3e758c1eb3fc543dd83 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Tue, 12 Nov 2013 15:07:08 -0800
Subject: ocfs2: simplify ocfs2_invalidatepage() and ocfs2_releasepage()

Ocfs2 doesn't do data journalling.  Thus its ->invalidatepage and
->releasepage functions never get called on buffers that have journal
heads attached.  So just use standard variants of functions from
buffer.c.

Signed-off-by: Jan Kara <jack@suse.cz>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/ocfs2/aops.c | 19 ++-----------------
 1 file changed, 2 insertions(+), 17 deletions(-)

diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c
index f959a1532767..aeb44e879c51 100644
--- a/fs/ocfs2/aops.c
+++ b/fs/ocfs2/aops.c
@@ -594,26 +594,11 @@ static void ocfs2_dio_end_io(struct kiocb *iocb,
 	ocfs2_rw_unlock(inode, level);
 }
 
-/*
- * ocfs2_invalidatepage() and ocfs2_releasepage() are shamelessly stolen
- * from ext3.  PageChecked() bits have been removed as OCFS2 does not
- * do journalled data.
- */
-static void ocfs2_invalidatepage(struct page *page, unsigned int offset,
-				 unsigned int length)
-{
-	journal_t *journal = OCFS2_SB(page->mapping->host->i_sb)->journal->j_journal;
-
-	jbd2_journal_invalidatepage(journal, page, offset, length);
-}
-
 static int ocfs2_releasepage(struct page *page, gfp_t wait)
 {
-	journal_t *journal = OCFS2_SB(page->mapping->host->i_sb)->journal->j_journal;
-
 	if (!page_has_buffers(page))
 		return 0;
-	return jbd2_journal_try_to_free_buffers(journal, page, wait);
+	return try_to_free_buffers(page);
 }
 
 static ssize_t ocfs2_direct_IO(int rw,
@@ -2092,7 +2077,7 @@ const struct address_space_operations ocfs2_aops = {
 	.write_end		= ocfs2_write_end,
 	.bmap			= ocfs2_bmap,
 	.direct_IO		= ocfs2_direct_IO,
-	.invalidatepage		= ocfs2_invalidatepage,
+	.invalidatepage		= block_invalidatepage,
 	.releasepage		= ocfs2_releasepage,
 	.migratepage		= buffer_migrate_page,
 	.is_partially_uptodate	= block_is_partially_uptodate,
-- 
cgit 


From 63d0f0a3c7e1281fd79268a8d988167eff607fb6 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Tue, 12 Nov 2013 15:07:09 -0800
Subject: mm/readahead.c:do_readhead(): don't check for ->readpage

The callee force_page_cache_readahead() already does this and unlike
do_readahead(), force_page_cache_readahead() remembers to check for
->readpages() as well.

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/readahead.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/readahead.c b/mm/readahead.c
index e4ed04149785..50241836fe82 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -569,7 +569,7 @@ static ssize_t
 do_readahead(struct address_space *mapping, struct file *filp,
 	     pgoff_t index, unsigned long nr)
 {
-	if (!mapping || !mapping->a_ops || !mapping->a_ops->readpage)
+	if (!mapping || !mapping->a_ops)
 		return -EINVAL;
 
 	force_page_cache_readahead(mapping, filp, index, nr);
-- 
cgit 


From bafe1e14403ad40714ffcfa1fb173b371cc87a1f Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 12 Nov 2013 15:07:10 -0800
Subject: ksm: remove redundant __GFP_ZERO from kcalloc

kcalloc returns zeroed memory.  There's no need to use this flag.

Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/ksm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/ksm.c b/mm/ksm.c
index 0bea2b262a47..175fff79dc95 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -2309,8 +2309,8 @@ static ssize_t merge_across_nodes_store(struct kobject *kobj,
 			 * Allocate stable and unstable together:
 			 * MAXSMP NODES_SHIFT 10 will use 16kB.
 			 */
-			buf = kcalloc(nr_node_ids + nr_node_ids,
-				sizeof(*buf), GFP_KERNEL | __GFP_ZERO);
+			buf = kcalloc(nr_node_ids + nr_node_ids, sizeof(*buf),
+				      GFP_KERNEL);
 			/* Let us assume that RB_ROOT is NULL is zero */
 			if (!buf)
 				err = -ENOMEM;
-- 
cgit 


From 4b90951c0bd8ca6695837354a253794192f6dfd5 Mon Sep 17 00:00:00 2001
From: Jianguo Wu <wujianguo@huawei.com>
Date: Tue, 12 Nov 2013 15:07:11 -0800
Subject: mm/vmalloc: use NUMA_NO_NODE

Use more appropriate "if (node == NUMA_NO_NODE)" instead of "if (node < 0)"

Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/vmalloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 107454312d5e..dea15e6bfc8d 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1577,7 +1577,7 @@ static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask,
 		struct page *page;
 		gfp_t tmp_mask = gfp_mask | __GFP_NOWARN;
 
-		if (node < 0)
+		if (node == NUMA_NO_NODE)
 			page = alloc_page(tmp_mask);
 		else
 			page = alloc_pages_node(node, tmp_mask, order);
-- 
cgit 


From 9e4be4708e9e88da46ae1f0bb1054c3619cc476e Mon Sep 17 00:00:00 2001
From: Jerome Marchand <jmarchan@redhat.com>
Date: Tue, 12 Nov 2013 15:07:12 -0800
Subject: mm/compaction.c: update comment about zone lock in
 isolate_freepages_block

Since commit f40d1e42bb98 ("mm: compaction: acquire the zone->lock as
late as possible"), isolate_freepages_block() takes the zone->lock
itself.  The function description however still states that the
zone->lock must be held.

This patch removes this outdated statement.

Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/compaction.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/mm/compaction.c b/mm/compaction.c
index b5326b141a25..805165bcd3dd 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -235,10 +235,9 @@ static bool suitable_migration_target(struct page *page)
 }
 
 /*
- * Isolate free pages onto a private freelist. Caller must hold zone->lock.
- * If @strict is true, will abort returning 0 on any invalid PFNs or non-free
- * pages inside of the pageblock (even though it may still end up isolating
- * some pages).
+ * Isolate free pages onto a private freelist. If @strict is true, will abort
+ * returning 0 on any invalid PFNs or non-free pages inside of the pageblock
+ * (even though it may still end up isolating some pages).
  */
 static unsigned long isolate_freepages_block(struct compact_control *cc,
 				unsigned long blockpfn,
-- 
cgit 


From c1ce4b375fa7b76d8b553d4f8d6cc5a09f063691 Mon Sep 17 00:00:00 2001
From: Xishi Qiu <qiuxishi@huawei.com>
Date: Tue, 12 Nov 2013 15:07:13 -0800
Subject: mm/arch: use __free_reserved_page() to simplify the code

Use __free_reserved_page() to simplify the code in arch.

It used split_page() in consistent_alloc()/__dma_alloc_coherent()/dma_alloc_coherent(),
so page->_count == 1, and we can free it safely.

__free_reserved_page()
	ClearPageReserved()
	init_page_count()  // it won't change the value
	__free_page()

Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/metag/kernel/dma.c           | 4 +---
 arch/microblaze/mm/consistent.c   | 7 ++-----
 arch/powerpc/mm/dma-noncoherent.c | 4 +---
 3 files changed, 4 insertions(+), 11 deletions(-)

diff --git a/arch/metag/kernel/dma.c b/arch/metag/kernel/dma.c
index 8c00dedadc54..db589ad5dbc4 100644
--- a/arch/metag/kernel/dma.c
+++ b/arch/metag/kernel/dma.c
@@ -305,9 +305,7 @@ void dma_free_coherent(struct device *dev, size_t size,
 
 			if (pfn_valid(pfn)) {
 				struct page *page = pfn_to_page(pfn);
-				ClearPageReserved(page);
-
-				__free_page(page);
+				__free_reserved_page(page);
 				continue;
 			}
 		}
diff --git a/arch/microblaze/mm/consistent.c b/arch/microblaze/mm/consistent.c
index 5226b09cbbb2..dbbf2246a260 100644
--- a/arch/microblaze/mm/consistent.c
+++ b/arch/microblaze/mm/consistent.c
@@ -176,8 +176,7 @@ void consistent_free(size_t size, void *vaddr)
 	page = virt_to_page(vaddr);
 
 	do {
-		ClearPageReserved(page);
-		__free_page(page);
+		__free_reserved_page(page);
 		page++;
 	} while (size -= PAGE_SIZE);
 #else
@@ -194,9 +193,7 @@ void consistent_free(size_t size, void *vaddr)
 			pte_clear(&init_mm, (unsigned int)vaddr, ptep);
 			if (pfn_valid(pfn)) {
 				page = pfn_to_page(pfn);
-
-				ClearPageReserved(page);
-				__free_page(page);
+				__free_reserved_page(page);
 			}
 		}
 		vaddr += PAGE_SIZE;
diff --git a/arch/powerpc/mm/dma-noncoherent.c b/arch/powerpc/mm/dma-noncoherent.c
index 6747eece84af..7b6c10750179 100644
--- a/arch/powerpc/mm/dma-noncoherent.c
+++ b/arch/powerpc/mm/dma-noncoherent.c
@@ -287,9 +287,7 @@ void __dma_free_coherent(size_t size, void *vaddr)
 			pte_clear(&init_mm, addr, ptep);
 			if (pfn_valid(pfn)) {
 				struct page *page = pfn_to_page(pfn);
-
-				ClearPageReserved(page);
-				__free_page(page);
+				__free_reserved_page(page);
 			}
 		}
 		addr += PAGE_SIZE;
-- 
cgit 


From 3207d9e72c6227b0a9a2624ae7984b32af5fb288 Mon Sep 17 00:00:00 2001
From: Xishi Qiu <qiuxishi@huawei.com>
Date: Tue, 12 Nov 2013 15:07:14 -0800
Subject: drivers/video/acornfb.c: use __free_reserved_page() to simplify the
 code

Use __free_reserved_page() to simplify the code in the others.

Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/acornfb.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/video/acornfb.c b/drivers/video/acornfb.c
index 7e8346ec9cdc..a305caea58ee 100644
--- a/drivers/video/acornfb.c
+++ b/drivers/video/acornfb.c
@@ -949,9 +949,7 @@ free_unused_pages(unsigned int virtual_start, unsigned int virtual_end)
 		 * the page.
 		 */
 		page = virt_to_page(virtual_start);
-		ClearPageReserved(page);
-		init_page_count(page);
-		free_page(virtual_start);
+		__free_reserved_page(page);
 
 		virtual_start += PAGE_SIZE;
 		mb_freed += PAGE_SIZE / 1024;
-- 
cgit 


From c69ded84a968e8ecc529b4de68522e4a2dcbf92a Mon Sep 17 00:00:00 2001
From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Date: Tue, 12 Nov 2013 15:07:15 -0800
Subject: mm: remove obsolete comments about page table lock

The callers of free_pgd_range() and hugetlb_free_pgd_range() don't hold
page table locks.  The comments seems to be obsolete, so let's remove
them.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/powerpc/mm/hugetlbpage.c | 2 --
 mm/memory.c                   | 2 --
 2 files changed, 4 deletions(-)

diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index d67db4bd672d..90bb6d9409bf 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -633,8 +633,6 @@ static void hugetlb_free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
 
 /*
  * This function frees user-level page tables of a process.
- *
- * Must be called with pagetable lock held.
  */
 void hugetlb_free_pgd_range(struct mmu_gather *tlb,
 			    unsigned long addr, unsigned long end,
diff --git a/mm/memory.c b/mm/memory.c
index 1f2287eaa88e..15744b2cf919 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -453,8 +453,6 @@ static inline void free_pud_range(struct mmu_gather *tlb, pgd_t *pgd,
 
 /*
  * This function frees user-level page tables of a process.
- *
- * Must be called with pagetable lock held.
  */
 void free_pgd_range(struct mmu_gather *tlb,
 			unsigned long addr, unsigned long end,
-- 
cgit 


From 8bfa3f9a012c4049f3d661f7a772cd9c27a7da99 Mon Sep 17 00:00:00 2001
From: Jianguo Wu <wujianguo@huawei.com>
Date: Tue, 12 Nov 2013 15:07:16 -0800
Subject: mm/huge_memory.c: fix stale comments of transparent_hugepage_flags

Since commit 13ece886d99c ("thp: transparent hugepage config choice"),
transparent hugepage support is disabled by default, and
TRANSPARENT_HUGEPAGE_ALWAYS is configured when TRANSPARENT_HUGEPAGE=y.

And since commit d39d33c332c6 ("thp: enable direct defrag"), defrag is
enable for all transparent hugepage page faults by default, not only in
MADV_HUGEPAGE regions.

Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/huge_memory.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 2612f60f53ee..4f7e2113646c 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -27,11 +27,12 @@
 #include "internal.h"
 
 /*
- * By default transparent hugepage support is enabled for all mappings
- * and khugepaged scans all mappings. Defrag is only invoked by
- * khugepaged hugepage allocations and by page faults inside
- * MADV_HUGEPAGE regions to avoid the risk of slowing down short lived
- * allocations.
+ * By default transparent hugepage support is disabled in order that avoid
+ * to risk increase the memory footprint of applications without a guaranteed
+ * benefit. When transparent hugepage support is enabled, is for all mappings,
+ * and khugepaged scans all mappings.
+ * Defrag is invoked by khugepaged hugepage allocations and by page faults
+ * for all hugepage allocations.
  */
 unsigned long transparent_hugepage_flags __read_mostly =
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS
-- 
cgit 


From 6408068ee6ce9d80d66908a2c01a24ee88afd47d Mon Sep 17 00:00:00 2001
From: Xishi Qiu <qiuxishi@huawei.com>
Date: Tue, 12 Nov 2013 15:07:17 -0800
Subject: mm: use pgdat_end_pfn() to simplify the code in arch

Use "pgdat_end_pfn()" instead of "pgdat->node_start_pfn +
pgdat->node_spanned_pages".  Simplify the code, no functional change.

Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/ia64/mm/init.c    | 4 +---
 arch/metag/mm/init.c   | 2 +-
 arch/powerpc/mm/numa.c | 3 +--
 arch/sh/mm/init.c      | 2 +-
 4 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index b6f7f43424ec..88504abf5704 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -357,9 +357,7 @@ int vmemmap_find_next_valid_pfn(int node, int i)
 
 	end_address = (unsigned long) &vmem_map[pgdat->node_start_pfn + i];
 	end_address = PAGE_ALIGN(end_address);
-
-	stop_address = (unsigned long) &vmem_map[
-		pgdat->node_start_pfn + pgdat->node_spanned_pages];
+	stop_address = (unsigned long) &vmem_map[pgdat_end_pfn(pgdat)];
 
 	do {
 		pgd_t *pgd;
diff --git a/arch/metag/mm/init.c b/arch/metag/mm/init.c
index 249fff66add3..3cd6288f65c2 100644
--- a/arch/metag/mm/init.c
+++ b/arch/metag/mm/init.c
@@ -148,7 +148,7 @@ static void __init bootmem_init_one_node(unsigned int nid)
 	if (!p->node_spanned_pages)
 		return;
 
-	end_pfn = p->node_start_pfn + p->node_spanned_pages;
+	end_pfn = pgdat_end_pfn(p);
 #ifdef CONFIG_HIGHMEM
 	if (end_pfn > max_low_pfn)
 		end_pfn = max_low_pfn;
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 33d67844062c..078d3e00a616 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -938,8 +938,7 @@ static void __init mark_reserved_regions_for_nid(int nid)
 		unsigned long start_pfn = physbase >> PAGE_SHIFT;
 		unsigned long end_pfn = PFN_UP(physbase + size);
 		struct node_active_region node_ar;
-		unsigned long node_end_pfn = node->node_start_pfn +
-					     node->node_spanned_pages;
+		unsigned long node_end_pfn = pgdat_end_pfn(node);
 
 		/*
 		 * Check to make sure that this memblock.reserved area is
diff --git a/arch/sh/mm/init.c b/arch/sh/mm/init.c
index 33890fd267cb..2d089fe2cba9 100644
--- a/arch/sh/mm/init.c
+++ b/arch/sh/mm/init.c
@@ -231,7 +231,7 @@ static void __init bootmem_init_one_node(unsigned int nid)
 	if (!p->node_spanned_pages)
 		return;
 
-	end_pfn = p->node_start_pfn + p->node_spanned_pages;
+	end_pfn = pgdat_end_pfn(p);
 
 	total_pages = bootmem_bootmap_pages(p->node_spanned_pages);
 
-- 
cgit 


From 83285c72e08c42848808039ef2d3b67a1bb88832 Mon Sep 17 00:00:00 2001
From: Xishi Qiu <qiuxishi@huawei.com>
Date: Tue, 12 Nov 2013 15:07:19 -0800
Subject: mm: use pgdat_end_pfn() to simplify the code in others

Use "pgdat_end_pfn()" instead of "pgdat->node_start_pfn +
pgdat->node_spanned_pages".  Simplify the code, no functional change.

Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/proc/kcore.c     | 3 +--
 mm/bootmem.c        | 2 +-
 mm/memory_hotplug.c | 9 ++++-----
 3 files changed, 6 insertions(+), 8 deletions(-)

diff --git a/fs/proc/kcore.c b/fs/proc/kcore.c
index 06ea155e1a59..5ed0e52d6aa0 100644
--- a/fs/proc/kcore.c
+++ b/fs/proc/kcore.c
@@ -255,8 +255,7 @@ static int kcore_update_ram(void)
 	end_pfn = 0;
 	for_each_node_state(nid, N_MEMORY) {
 		unsigned long node_end;
-		node_end  = NODE_DATA(nid)->node_start_pfn +
-			NODE_DATA(nid)->node_spanned_pages;
+		node_end = node_end_pfn(nid);
 		if (end_pfn < node_end)
 			end_pfn = node_end;
 	}
diff --git a/mm/bootmem.c b/mm/bootmem.c
index 6ab7744e692e..95b528cd4de7 100644
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -784,7 +784,7 @@ void * __init __alloc_bootmem_node_high(pg_data_t *pgdat, unsigned long size,
 		return kzalloc_node(size, GFP_NOWAIT, pgdat->node_id);
 
 	/* update goal according ...MAX_DMA32_PFN */
-	end_pfn = pgdat->node_start_pfn + pgdat->node_spanned_pages;
+	end_pfn = pgdat_end_pfn(pgdat);
 
 	if (end_pfn > MAX_DMA32_PFN + (128 >> (20 - PAGE_SHIFT)) &&
 	    (goal >> PAGE_SHIFT) < MAX_DMA32_PFN) {
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index ed85fe3870e2..375a42d76b2c 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -365,8 +365,7 @@ out_fail:
 static void grow_pgdat_span(struct pglist_data *pgdat, unsigned long start_pfn,
 			    unsigned long end_pfn)
 {
-	unsigned long old_pgdat_end_pfn =
-		pgdat->node_start_pfn + pgdat->node_spanned_pages;
+	unsigned long old_pgdat_end_pfn = pgdat_end_pfn(pgdat);
 
 	if (!pgdat->node_spanned_pages || start_pfn < pgdat->node_start_pfn)
 		pgdat->node_start_pfn = start_pfn;
@@ -579,9 +578,9 @@ static void shrink_zone_span(struct zone *zone, unsigned long start_pfn,
 static void shrink_pgdat_span(struct pglist_data *pgdat,
 			      unsigned long start_pfn, unsigned long end_pfn)
 {
-	unsigned long pgdat_start_pfn =  pgdat->node_start_pfn;
-	unsigned long pgdat_end_pfn =
-		pgdat->node_start_pfn + pgdat->node_spanned_pages;
+	unsigned long pgdat_start_pfn = pgdat->node_start_pfn;
+	unsigned long p = pgdat_end_pfn(pgdat); /* pgdat_end_pfn namespace clash */
+	unsigned long pgdat_end_pfn = p;
 	unsigned long pfn;
 	struct mem_section *ms;
 	int nid = pgdat->node_id;
-- 
cgit 


From b38a872596dad80bd77d98f5fdbc58cc8f438dbb Mon Sep 17 00:00:00 2001
From: Xishi Qiu <qiuxishi@huawei.com>
Date: Tue, 12 Nov 2013 15:07:20 -0800
Subject: mm: use populated_zone() instead of if(zone->present_pages)

Use "if (zone->present_pages)" instead of "if (zone->present_pages)".
Simplify the code, no functional change.

Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/page_alloc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 73d812f16dde..3d1d75a6629f 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -4266,7 +4266,7 @@ static __meminit void zone_pcp_init(struct zone *zone)
 	 */
 	zone->pageset = &boot_pageset;
 
-	if (zone->present_pages)
+	if (populated_zone(zone))
 		printk(KERN_DEBUG "  %s zone: %lu pages, LIFO batch:%u\n",
 			zone->name, zone->present_pages,
 					 zone_batchsize(zone));
@@ -5160,7 +5160,7 @@ static void check_for_memory(pg_data_t *pgdat, int nid)
 
 	for (zone_type = 0; zone_type <= ZONE_MOVABLE - 1; zone_type++) {
 		struct zone *zone = &pgdat->node_zones[zone_type];
-		if (zone->present_pages) {
+		if (populated_zone(zone)) {
 			node_set_state(nid, N_HIGH_MEMORY);
 			if (N_NORMAL_MEMORY != N_HIGH_MEMORY &&
 			    zone_type <= ZONE_NORMAL)
-- 
cgit 


From d6de9d5349db61e134ab7fb6b2436a4c7938714c Mon Sep 17 00:00:00 2001
From: Xishi Qiu <qiuxishi@huawei.com>
Date: Tue, 12 Nov 2013 15:07:20 -0800
Subject: mm/memory_hotplug.c: rename the function is_memblock_offlined_cb()

A is_memblock_offlined() return or 1 means memory block is offlined, but
is_memblock_offlined_cb() returning 1 means memory block is not offlined,
this will confuse somebody, so rename the function.

Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/memory_hotplug.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 375a42d76b2c..133a4e132632 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1701,7 +1701,7 @@ int walk_memory_range(unsigned long start_pfn, unsigned long end_pfn,
 }
 
 #ifdef CONFIG_MEMORY_HOTREMOVE
-static int is_memblock_offlined_cb(struct memory_block *mem, void *arg)
+static int check_memblock_offlined_cb(struct memory_block *mem, void *arg)
 {
 	int ret = !is_memblock_offlined(mem);
 
@@ -1853,7 +1853,7 @@ void __ref remove_memory(int nid, u64 start, u64 size)
 	 * if this is not the case.
 	 */
 	ret = walk_memory_range(PFN_DOWN(start), PFN_UP(start + size - 1), NULL,
-				is_memblock_offlined_cb);
+				check_memblock_offlined_cb);
 	if (ret) {
 		unlock_memory_hotplug();
 		BUG();
-- 
cgit 


From 9c2606b77d6bffb422928bca66c8dc84d85089be Mon Sep 17 00:00:00 2001
From: Xishi Qiu <qiuxishi@huawei.com>
Date: Tue, 12 Nov 2013 15:07:21 -0800
Subject: mm/memory_hotplug.c: use pfn_to_nid() instead of
 page_to_nid(pfn_to_page())

Use "pfn_to_nid(pfn)" instead of "page_to_nid(pfn_to_page(pfn))".

Signed-off-by: Xishi Qiu <qiuxishi@huawei.com>
Acked-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/memory_hotplug.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 133a4e132632..5118028468eb 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -934,7 +934,7 @@ int __ref online_pages(unsigned long pfn, unsigned long nr_pages, int online_typ
 	arg.nr_pages = nr_pages;
 	node_states_check_changes_online(nr_pages, zone, &arg);
 
-	nid = page_to_nid(pfn_to_page(pfn));
+	nid = pfn_to_nid(pfn);
 
 	ret = memory_notify(MEM_GOING_ONLINE, &arg);
 	ret = notifier_to_errno(ret);
-- 
cgit 


From b9921ecdee66984b00c38c00a358ef3f611d2b50 Mon Sep 17 00:00:00 2001
From: Qiang Huang <h.huangqiang@huawei.com>
Date: Tue, 12 Nov 2013 15:07:22 -0800
Subject: mm: add a helper function to check may oom condition

Use helper function to check if we need to deal with oom condition.

Signed-off-by: Qiang Huang <h.huangqiang@huawei.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/oom.h | 5 +++++
 mm/memcontrol.c     | 9 +--------
 mm/page_alloc.c     | 2 +-
 3 files changed, 7 insertions(+), 9 deletions(-)

diff --git a/include/linux/oom.h b/include/linux/oom.h
index da60007075b5..4cd62677feb9 100644
--- a/include/linux/oom.h
+++ b/include/linux/oom.h
@@ -82,6 +82,11 @@ static inline void oom_killer_enable(void)
 	oom_killer_disabled = false;
 }
 
+static inline bool oom_gfp_allowed(gfp_t gfp_mask)
+{
+	return (gfp_mask & __GFP_FS) && !(gfp_mask & __GFP_NORETRY);
+}
+
 extern struct task_struct *find_lock_task_mm(struct task_struct *p);
 
 /* sysctls */
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 13b9d0f221b8..3427de9897a5 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2984,21 +2984,14 @@ static int memcg_charge_kmem(struct mem_cgroup *memcg, gfp_t gfp, u64 size)
 	struct res_counter *fail_res;
 	struct mem_cgroup *_memcg;
 	int ret = 0;
-	bool may_oom;
 
 	ret = res_counter_charge(&memcg->kmem, size, &fail_res);
 	if (ret)
 		return ret;
 
-	/*
-	 * Conditions under which we can wait for the oom_killer. Those are
-	 * the same conditions tested by the core page allocator
-	 */
-	may_oom = (gfp & __GFP_FS) && !(gfp & __GFP_NORETRY);
-
 	_memcg = memcg;
 	ret = __mem_cgroup_try_charge(NULL, gfp, size >> PAGE_SHIFT,
-				      &_memcg, may_oom);
+				      &_memcg, oom_gfp_allowed(gfp));
 
 	if (ret == -EINTR)  {
 		/*
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 3d1d75a6629f..e0412c026e0d 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2593,7 +2593,7 @@ rebalance:
 	 * running out of options and have to consider going OOM
 	 */
 	if (!did_some_progress) {
-		if ((gfp_mask & __GFP_FS) && !(gfp_mask & __GFP_NORETRY)) {
+		if (oom_gfp_allowed(gfp_mask)) {
 			if (oom_killer_disabled)
 				goto nopage;
 			/* Coredumps can quickly deplete all memory reserves */
-- 
cgit 


From 309d0b3917387b48d1fa1a15aa6762de489c9123 Mon Sep 17 00:00:00 2001
From: Robin Holt <robin.m.holt@gmail.com>
Date: Tue, 12 Nov 2013 15:07:23 -0800
Subject: mm/nobootmem.c: have __free_pages_memory() free in larger chunks.

On large memory machines it can take a few minutes to get through
free_all_bootmem().

Currently, when free_all_bootmem() calls __free_pages_memory(), the number
of contiguous pages that __free_pages_memory() passes to the buddy
allocator is limited to BITS_PER_LONG.  BITS_PER_LONG was originally
chosen to keep things similar to mm/nobootmem.c.  But it is more efficient
to limit it to MAX_ORDER.

       base   new  change
8TB    202s  172s   30s
16TB   401s  351s   50s

That is around 1%-3% improvement on total boot time.

This patch was spun off from the boot time rfc Robin and I had been
working on.

Signed-off-by: Robin Holt <robin.m.holt@gmail.com>
Signed-off-by: Nathan Zimmer <nzimmer@sgi.com>
Cc: Robin Holt <robinmholt@linux.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Mike Travis <travis@sgi.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Mel Gorman <mgorman@suse.de>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/nobootmem.c | 25 ++++++++-----------------
 1 file changed, 8 insertions(+), 17 deletions(-)

diff --git a/mm/nobootmem.c b/mm/nobootmem.c
index 61107cf55bb3..2c254d374655 100644
--- a/mm/nobootmem.c
+++ b/mm/nobootmem.c
@@ -82,27 +82,18 @@ void __init free_bootmem_late(unsigned long addr, unsigned long size)
 
 static void __init __free_pages_memory(unsigned long start, unsigned long end)
 {
-	unsigned long i, start_aligned, end_aligned;
-	int order = ilog2(BITS_PER_LONG);
+	int order;
 
-	start_aligned = (start + (BITS_PER_LONG - 1)) & ~(BITS_PER_LONG - 1);
-	end_aligned = end & ~(BITS_PER_LONG - 1);
+	while (start < end) {
+		order = min(MAX_ORDER - 1UL, __ffs(start));
 
-	if (end_aligned <= start_aligned) {
-		for (i = start; i < end; i++)
-			__free_pages_bootmem(pfn_to_page(i), 0);
+		while (start + (1UL << order) > end)
+			order--;
 
-		return;
-	}
-
-	for (i = start; i < start_aligned; i++)
-		__free_pages_bootmem(pfn_to_page(i), 0);
+		__free_pages_bootmem(pfn_to_page(start), order);
 
-	for (i = start_aligned; i < end_aligned; i += BITS_PER_LONG)
-		__free_pages_bootmem(pfn_to_page(i), order);
-
-	for (i = end_aligned; i < end; i++)
-		__free_pages_bootmem(pfn_to_page(i), 0);
+		start += (1UL << order);
+	}
 }
 
 static unsigned long __init __free_memory_core(phys_addr_t start,
-- 
cgit 


From 01b0f19707c51ef247404e6af1d4a97a11ba34f7 Mon Sep 17 00:00:00 2001
From: Toshi Kani <toshi.kani@hp.com>
Date: Tue, 12 Nov 2013 15:07:25 -0800
Subject: cpu/mem hotplug: add try_online_node() for cpu_up()

cpu_up() has #ifdef CONFIG_MEMORY_HOTPLUG code blocks, which call
mem_online_node() to put its node online if offlined and then call
build_all_zonelists() to initialize the zone list.

These steps are specific to memory hotplug, and should be managed in
mm/memory_hotplug.c.  lock_memory_hotplug() should also be held for the
whole steps.

For this reason, this patch replaces mem_online_node() with
try_online_node(), which performs the whole steps with
lock_memory_hotplug() held.  try_online_node() is named after
try_offline_node() as they have similar purpose.

There is no functional change in this patch.

Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/memory_hotplug.h |  8 +++++++-
 kernel/cpu.c                   | 29 +++--------------------------
 mm/memory_hotplug.c            | 16 ++++++++++++++--
 3 files changed, 24 insertions(+), 29 deletions(-)

diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
index dd38e62b84d2..22203c293f07 100644
--- a/include/linux/memory_hotplug.h
+++ b/include/linux/memory_hotplug.h
@@ -94,6 +94,8 @@ extern void __online_page_set_limits(struct page *page);
 extern void __online_page_increment_counters(struct page *page);
 extern void __online_page_free(struct page *page);
 
+extern int try_online_node(int nid);
+
 #ifdef CONFIG_MEMORY_HOTREMOVE
 extern bool is_pageblock_removable_nolock(struct page *page);
 extern int arch_remove_memory(u64 start, u64 size);
@@ -225,6 +227,11 @@ static inline void register_page_bootmem_info_node(struct pglist_data *pgdat)
 {
 }
 
+static inline int try_online_node(int nid)
+{
+	return 0;
+}
+
 static inline void lock_memory_hotplug(void) {}
 static inline void unlock_memory_hotplug(void) {}
 
@@ -256,7 +263,6 @@ static inline void remove_memory(int nid, u64 start, u64 size) {}
 
 extern int walk_memory_range(unsigned long start_pfn, unsigned long end_pfn,
 		void *arg, int (*func)(struct memory_block *, void *));
-extern int mem_online_node(int nid);
 extern int add_memory(int nid, u64 start, u64 size);
 extern int arch_add_memory(int nid, u64 start, u64 size);
 extern int offline_pages(unsigned long start_pfn, unsigned long nr_pages);
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 63aa50d7ce1e..973d034acf84 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -437,11 +437,6 @@ int cpu_up(unsigned int cpu)
 {
 	int err = 0;
 
-#ifdef	CONFIG_MEMORY_HOTPLUG
-	int nid;
-	pg_data_t	*pgdat;
-#endif
-
 	if (!cpu_possible(cpu)) {
 		printk(KERN_ERR "can't online cpu %d because it is not "
 			"configured as may-hotadd at boot time\n", cpu);
@@ -452,27 +447,9 @@ int cpu_up(unsigned int cpu)
 		return -EINVAL;
 	}
 
-#ifdef	CONFIG_MEMORY_HOTPLUG
-	nid = cpu_to_node(cpu);
-	if (!node_online(nid)) {
-		err = mem_online_node(nid);
-		if (err)
-			return err;
-	}
-
-	pgdat = NODE_DATA(nid);
-	if (!pgdat) {
-		printk(KERN_ERR
-			"Can't online cpu %d due to NULL pgdat\n", cpu);
-		return -ENOMEM;
-	}
-
-	if (pgdat->node_zonelists->_zonerefs->zone == NULL) {
-		mutex_lock(&zonelists_mutex);
-		build_all_zonelists(NULL, NULL);
-		mutex_unlock(&zonelists_mutex);
-	}
-#endif
+	err = try_online_node(cpu_to_node(cpu));
+	if (err)
+		return err;
 
 	cpu_maps_update_begin();
 
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 5118028468eb..8285346be663 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -1043,17 +1043,23 @@ static void rollback_node_hotadd(int nid, pg_data_t *pgdat)
 }
 
 
-/*
+/**
+ * try_online_node - online a node if offlined
+ *
  * called by cpu_up() to online a node without onlined memory.
  */
-int mem_online_node(int nid)
+int try_online_node(int nid)
 {
 	pg_data_t	*pgdat;
 	int	ret;
 
+	if (node_online(nid))
+		return 0;
+
 	lock_memory_hotplug();
 	pgdat = hotadd_new_pgdat(nid, 0);
 	if (!pgdat) {
+		pr_err("Cannot online node %d due to NULL pgdat\n", nid);
 		ret = -ENOMEM;
 		goto out;
 	}
@@ -1061,6 +1067,12 @@ int mem_online_node(int nid)
 	ret = register_one_node(nid);
 	BUG_ON(ret);
 
+	if (pgdat->node_zonelists->_zonerefs->zone == NULL) {
+		mutex_lock(&zonelists_mutex);
+		build_all_zonelists(NULL, NULL);
+		mutex_unlock(&zonelists_mutex);
+	}
+
 out:
 	unlock_memory_hotplug();
 	return ret;
-- 
cgit 


From 03b61ff3c324e094944b663cc611a8bab252539c Mon Sep 17 00:00:00 2001
From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Date: Tue, 12 Nov 2013 15:07:26 -0800
Subject: mm/memory-failure.c: move set_migratetype_isolate() outside
 get_any_page()

Chen Gong pointed out that set/unset_migratetype_isolate() was done in
different functions in mm/memory-failure.c, which makes the code less
readable/maintainable.  So this patch does it in soft_offline_page().

With this patch, we get to hold lock_memory_hotplug() longer but it's
not a problem because races between memory hotplug and soft offline are
very rare.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Reviewed-by: Chen, Gong <gong.chen@linux.intel.com>
Acked-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/memory-failure.c | 36 +++++++++++++++++-------------------
 1 file changed, 17 insertions(+), 19 deletions(-)

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index bf3351b5115e..f9d78ec7831f 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1422,19 +1422,6 @@ static int __get_any_page(struct page *p, unsigned long pfn, int flags)
 	if (flags & MF_COUNT_INCREASED)
 		return 1;
 
-	/*
-	 * The lock_memory_hotplug prevents a race with memory hotplug.
-	 * This is a big hammer, a better would be nicer.
-	 */
-	lock_memory_hotplug();
-
-	/*
-	 * Isolate the page, so that it doesn't get reallocated if it
-	 * was free. This flag should be kept set until the source page
-	 * is freed and PG_hwpoison on it is set.
-	 */
-	if (get_pageblock_migratetype(p) != MIGRATE_ISOLATE)
-		set_migratetype_isolate(p, true);
 	/*
 	 * When the target page is a free hugepage, just remove it
 	 * from free hugepage list.
@@ -1455,7 +1442,6 @@ static int __get_any_page(struct page *p, unsigned long pfn, int flags)
 		/* Not a free page */
 		ret = 1;
 	}
-	unlock_memory_hotplug();
 	return ret;
 }
 
@@ -1654,15 +1640,28 @@ int soft_offline_page(struct page *page, int flags)
 		}
 	}
 
+	/*
+	 * The lock_memory_hotplug prevents a race with memory hotplug.
+	 * This is a big hammer, a better would be nicer.
+	 */
+	lock_memory_hotplug();
+
+	/*
+	 * Isolate the page, so that it doesn't get reallocated if it
+	 * was free. This flag should be kept set until the source page
+	 * is freed and PG_hwpoison on it is set.
+	 */
+	if (get_pageblock_migratetype(page) != MIGRATE_ISOLATE)
+		set_migratetype_isolate(page, true);
+
 	ret = get_any_page(page, pfn, flags);
-	if (ret < 0)
-		goto unset;
-	if (ret) { /* for in-use pages */
+	unlock_memory_hotplug();
+	if (ret > 0) { /* for in-use pages */
 		if (PageHuge(page))
 			ret = soft_offline_huge_page(page, flags);
 		else
 			ret = __soft_offline_page(page, flags);
-	} else { /* for free pages */
+	} else if (ret == 0) { /* for free pages */
 		if (PageHuge(page)) {
 			set_page_hwpoison_huge_page(hpage);
 			dequeue_hwpoisoned_huge_page(hpage);
@@ -1673,7 +1672,6 @@ int soft_offline_page(struct page *page, int flags)
 			atomic_long_inc(&num_poisoned_pages);
 		}
 	}
-unset:
 	unset_migratetype_isolate(page, MIGRATE_MOVABLE);
 	return ret;
 }
-- 
cgit 


From 40c3baa7c66f1352521378ee83509fb8f4c465de Mon Sep 17 00:00:00 2001
From: Jianguo Wu <wujianguo@huawei.com>
Date: Tue, 12 Nov 2013 15:07:27 -0800
Subject: mm/arch: use NUMA_NO_NODE

Use more appropriate NUMA_NO_NODE instead of -1 in all archs' module_alloc()

Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/arm/kernel/module.c    | 2 +-
 arch/arm64/kernel/module.c  | 2 +-
 arch/parisc/kernel/module.c | 2 +-
 arch/s390/kernel/module.c   | 2 +-
 arch/sparc/kernel/module.c  | 2 +-
 arch/x86/kernel/module.c    | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm/kernel/module.c b/arch/arm/kernel/module.c
index 084dc8896986..c9dfff3b8008 100644
--- a/arch/arm/kernel/module.c
+++ b/arch/arm/kernel/module.c
@@ -40,7 +40,7 @@
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				GFP_KERNEL, PAGE_KERNEL_EXEC, -1,
+				GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #endif
diff --git a/arch/arm64/kernel/module.c b/arch/arm64/kernel/module.c
index 2c28a6cf93e6..e2ad0d87721f 100644
--- a/arch/arm64/kernel/module.c
+++ b/arch/arm64/kernel/module.c
@@ -29,7 +29,7 @@
 void *module_alloc(unsigned long size)
 {
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				    GFP_KERNEL, PAGE_KERNEL_EXEC, -1,
+				    GFP_KERNEL, PAGE_KERNEL_EXEC, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 
diff --git a/arch/parisc/kernel/module.c b/arch/parisc/kernel/module.c
index 2a625fb063e1..50dfafc3f2c1 100644
--- a/arch/parisc/kernel/module.c
+++ b/arch/parisc/kernel/module.c
@@ -219,7 +219,7 @@ void *module_alloc(unsigned long size)
 	 * init_data correctly */
 	return __vmalloc_node_range(size, 1, VMALLOC_START, VMALLOC_END,
 				    GFP_KERNEL | __GFP_HIGHMEM,
-				    PAGE_KERNEL_RWX, -1,
+				    PAGE_KERNEL_RWX, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 
diff --git a/arch/s390/kernel/module.c b/arch/s390/kernel/module.c
index 7845e15a17df..b89b59158b95 100644
--- a/arch/s390/kernel/module.c
+++ b/arch/s390/kernel/module.c
@@ -50,7 +50,7 @@ void *module_alloc(unsigned long size)
 	if (PAGE_ALIGN(size) > MODULES_LEN)
 		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				    GFP_KERNEL, PAGE_KERNEL, -1,
+				    GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
 				    __builtin_return_address(0));
 }
 #endif
diff --git a/arch/sparc/kernel/module.c b/arch/sparc/kernel/module.c
index 4435488ebe25..97655e0fd243 100644
--- a/arch/sparc/kernel/module.c
+++ b/arch/sparc/kernel/module.c
@@ -29,7 +29,7 @@ static void *module_map(unsigned long size)
 	if (PAGE_ALIGN(size) > MODULES_LEN)
 		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
-				GFP_KERNEL, PAGE_KERNEL, -1,
+				GFP_KERNEL, PAGE_KERNEL, NUMA_NO_NODE,
 				__builtin_return_address(0));
 }
 #else
diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c
index 216a4d754b0c..18be189368bb 100644
--- a/arch/x86/kernel/module.c
+++ b/arch/x86/kernel/module.c
@@ -49,7 +49,7 @@ void *module_alloc(unsigned long size)
 		return NULL;
 	return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END,
 				GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC,
-				-1, __builtin_return_address(0));
+				NUMA_NO_NODE, __builtin_return_address(0));
 }
 
 #ifdef CONFIG_X86_32
-- 
cgit 


From 948927ee9e4f35f287e61a79c9f0e85ca2202c7d Mon Sep 17 00:00:00 2001
From: David Rientjes <rientjes@google.com>
Date: Tue, 12 Nov 2013 15:07:28 -0800
Subject: mm, mempolicy: make mpol_to_str robust and always succeed

mpol_to_str() should not fail.  Currently, it either fails because the
string buffer is too small or because a string hasn't been defined for a
mempolicy mode.

If a new mempolicy mode is introduced and no string is defined for it,
just warn and return "unknown".

If the buffer is too small, just truncate the string and return, the
same behavior as snprintf().

This also fixes a bug where there was no NULL-byte termination when doing
*p++ = '=' and *p++ ':' and maxlen has been reached.

Signed-off-by: David Rientjes <rientjes@google.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Chen Gang <gang.chen@asianux.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Dave Jones <davej@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/proc/task_mmu.c        | 14 ++++++-------
 include/linux/mempolicy.h |  5 ++---
 mm/mempolicy.c            | 52 +++++++++++++++--------------------------------
 3 files changed, 24 insertions(+), 47 deletions(-)

diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 390bdab01c3c..9f1369fe0afb 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -1387,8 +1387,8 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
 	struct mm_struct *mm = vma->vm_mm;
 	struct mm_walk walk = {};
 	struct mempolicy *pol;
-	int n;
-	char buffer[50];
+	char buffer[64];
+	int nid;
 
 	if (!mm)
 		return 0;
@@ -1404,10 +1404,8 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
 	walk.mm = mm;
 
 	pol = get_vma_policy(task, vma, vma->vm_start);
-	n = mpol_to_str(buffer, sizeof(buffer), pol);
+	mpol_to_str(buffer, sizeof(buffer), pol);
 	mpol_cond_put(pol);
-	if (n < 0)
-		return n;
 
 	seq_printf(m, "%08lx %s", vma->vm_start, buffer);
 
@@ -1460,9 +1458,9 @@ static int show_numa_map(struct seq_file *m, void *v, int is_pid)
 	if (md->writeback)
 		seq_printf(m, " writeback=%lu", md->writeback);
 
-	for_each_node_state(n, N_MEMORY)
-		if (md->node[n])
-			seq_printf(m, " N%d=%lu", n, md->node[n]);
+	for_each_node_state(nid, N_MEMORY)
+		if (md->node[nid])
+			seq_printf(m, " N%d=%lu", nid, md->node[nid]);
 out:
 	seq_putc(m, '\n');
 
diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index ea4d2495c646..9fe426b30a41 100644
--- a/include/linux/mempolicy.h
+++ b/include/linux/mempolicy.h
@@ -169,7 +169,7 @@ int do_migrate_pages(struct mm_struct *mm, const nodemask_t *from,
 extern int mpol_parse_str(char *str, struct mempolicy **mpol);
 #endif
 
-extern int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol);
+extern void mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol);
 
 /* Check if a vma is migratable */
 static inline int vma_migratable(struct vm_area_struct *vma)
@@ -307,9 +307,8 @@ static inline int mpol_parse_str(char *str, struct mempolicy **mpol)
 }
 #endif
 
-static inline int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol)
+static inline void mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol)
 {
-	return 0;
 }
 
 static inline int mpol_misplaced(struct page *page, struct vm_area_struct *vma,
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 71cb253368cb..260b8213a873 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2914,62 +2914,45 @@ out:
  * @maxlen:  length of @buffer
  * @pol:  pointer to mempolicy to be formatted
  *
- * Convert a mempolicy into a string.
- * Returns the number of characters in buffer (if positive)
- * or an error (negative)
+ * Convert @pol into a string.  If @buffer is too short, truncate the string.
+ * Recommend a @maxlen of at least 32 for the longest mode, "interleave", the
+ * longest flag, "relative", and to display at least a few node ids.
  */
-int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol)
+void mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol)
 {
 	char *p = buffer;
-	int l;
-	nodemask_t nodes;
-	unsigned short mode;
-	unsigned short flags = pol ? pol->flags : 0;
-
-	/*
-	 * Sanity check:  room for longest mode, flag and some nodes
-	 */
-	VM_BUG_ON(maxlen < strlen("interleave") + strlen("relative") + 16);
+	nodemask_t nodes = NODE_MASK_NONE;
+	unsigned short mode = MPOL_DEFAULT;
+	unsigned short flags = 0;
 
-	if (!pol || pol == &default_policy)
-		mode = MPOL_DEFAULT;
-	else
+	if (pol && pol != &default_policy) {
 		mode = pol->mode;
+		flags = pol->flags;
+	}
 
 	switch (mode) {
 	case MPOL_DEFAULT:
-		nodes_clear(nodes);
 		break;
-
 	case MPOL_PREFERRED:
-		nodes_clear(nodes);
 		if (flags & MPOL_F_LOCAL)
 			mode = MPOL_LOCAL;
 		else
 			node_set(pol->v.preferred_node, nodes);
 		break;
-
 	case MPOL_BIND:
-		/* Fall through */
 	case MPOL_INTERLEAVE:
 		nodes = pol->v.nodes;
 		break;
-
 	default:
-		return -EINVAL;
+		WARN_ON_ONCE(1);
+		snprintf(p, maxlen, "unknown");
+		return;
 	}
 
-	l = strlen(policy_modes[mode]);
-	if (buffer + maxlen < p + l + 1)
-		return -ENOSPC;
-
-	strcpy(p, policy_modes[mode]);
-	p += l;
+	p += snprintf(p, maxlen, policy_modes[mode]);
 
 	if (flags & MPOL_MODE_FLAGS) {
-		if (buffer + maxlen < p + 2)
-			return -ENOSPC;
-		*p++ = '=';
+		p += snprintf(p, buffer + maxlen - p, "=");
 
 		/*
 		 * Currently, the only defined flags are mutually exclusive
@@ -2981,10 +2964,7 @@ int mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol)
 	}
 
 	if (!nodes_empty(nodes)) {
-		if (buffer + maxlen < p + 2)
-			return -ENOSPC;
-		*p++ = ':';
+		p += snprintf(p, buffer + maxlen - p, ":");
 	 	p += nodelist_scnprintf(p, buffer + maxlen - p, nodes);
 	}
-	return p - buffer;
 }
-- 
cgit 


From 3722e13cff361035583f6ecfa784437b824fe659 Mon Sep 17 00:00:00 2001
From: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Date: Tue, 12 Nov 2013 15:07:29 -0800
Subject: mm/vmalloc: don't set area->caller twice

The caller address has already been set in set_vmalloc_vm(), there's no
need to set it again in __vmalloc_area_node.

Reviewed-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Mitsuo Hayasaka <mitsuo.hayasaka.hu@hitachi.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/vmalloc.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index dea15e6bfc8d..285f0e7d28e7 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1546,7 +1546,7 @@ static void *__vmalloc_node(unsigned long size, unsigned long align,
 			    gfp_t gfp_mask, pgprot_t prot,
 			    int node, const void *caller);
 static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask,
-				 pgprot_t prot, int node, const void *caller)
+				 pgprot_t prot, int node)
 {
 	const int order = 0;
 	struct page **pages;
@@ -1560,13 +1560,12 @@ static void *__vmalloc_area_node(struct vm_struct *area, gfp_t gfp_mask,
 	/* Please note that the recursion is strictly bounded. */
 	if (array_size > PAGE_SIZE) {
 		pages = __vmalloc_node(array_size, 1, nested_gfp|__GFP_HIGHMEM,
-				PAGE_KERNEL, node, caller);
+				PAGE_KERNEL, node, area->caller);
 		area->flags |= VM_VPAGES;
 	} else {
 		pages = kmalloc_node(array_size, nested_gfp, node);
 	}
 	area->pages = pages;
-	area->caller = caller;
 	if (!area->pages) {
 		remove_vm_area(area->addr);
 		kfree(area);
@@ -1634,7 +1633,7 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 	if (!area)
 		goto fail;
 
-	addr = __vmalloc_area_node(area, gfp_mask, prot, node, caller);
+	addr = __vmalloc_area_node(area, gfp_mask, prot, node);
 	if (!addr)
 		goto fail;
 
-- 
cgit 


From c2ce8c142c43c360047e173d2018d94a4d0f7a59 Mon Sep 17 00:00:00 2001
From: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Date: Tue, 12 Nov 2013 15:07:31 -0800
Subject: mm/vmalloc: fix show vmap_area information race with vmap_area tear
 down

There is a race window between vmap_area tear down and show vmap_area
information.

	A                                                B

remove_vm_area
spin_lock(&vmap_area_lock);
va->vm = NULL;
va->flags &= ~VM_VM_AREA;
spin_unlock(&vmap_area_lock);
						spin_lock(&vmap_area_lock);
						if (va->flags & (VM_LAZY_FREE | VM_LAZY_FREEZING))
							return 0;
						if (!(va->flags & VM_VM_AREA)) {
							seq_printf(m, "0x%pK-0x%pK %7ld vm_map_ram\n",
								(void *)va->va_start, (void *)va->va_end,
								va->va_end - va->va_start);
							return 0;
						}
free_unmap_vmap_area(va);
	flush_cache_vunmap
	free_unmap_vmap_area_noflush
		unmap_vmap_area
		free_vmap_area_noflush
			va->flags |= VM_LAZY_FREE

The assumption !VM_VM_AREA represents vm_map_ram allocation is
introduced by d4033afdf828 ("mm, vmalloc: iterate vmap_area_list,
instead of vmlist, in vmallocinfo()").

However, !VM_VM_AREA also represents vmap_area is being tear down in
race window mentioned above.  This patch fix it by don't dump any
information for !VM_VM_AREA case and also remove (VM_LAZY_FREE |
VM_LAZY_FREEING) check since they are not possible for !VM_VM_AREA case.

Suggested-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Mitsuo Hayasaka <mitsuo.hayasaka.hu@hitachi.com>
Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/vmalloc.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 285f0e7d28e7..814ce9122709 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -2578,15 +2578,12 @@ static int s_show(struct seq_file *m, void *p)
 	struct vmap_area *va = p;
 	struct vm_struct *v;
 
-	if (va->flags & (VM_LAZY_FREE | VM_LAZY_FREEING))
-		return 0;
-
-	if (!(va->flags & VM_VM_AREA)) {
-		seq_printf(m, "0x%pK-0x%pK %7ld vm_map_ram\n",
-			(void *)va->va_start, (void *)va->va_end,
-					va->va_end - va->va_start);
+	/*
+	 * s_show can encounter race with remove_vm_area, !VM_VM_AREA on
+	 * behalf of vmap area is being tear down or vm_map_ram allocation.
+	 */
+	if (!(va->flags & VM_VM_AREA))
 		return 0;
-	}
 
 	v = va->vm;
 
-- 
cgit 


From af12346cdacda36f0c35c657088282b8ecd0df72 Mon Sep 17 00:00:00 2001
From: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Date: Tue, 12 Nov 2013 15:07:32 -0800
Subject: mm/vmalloc: revert "mm/vmalloc.c: check VM_UNINITIALIZED flag in
 s_show instead of show_numa_info"

The VM_UNINITIALIZED/VM_UNLIST flag introduced by f5252e009d5b ("mm:
avoid null pointer access in vm_struct via /proc/vmallocinfo") is used
to avoid accessing the pages field with unallocated page when
show_numa_info() is called.

This patch moves the check just before show_numa_info in order that some
messages still can be dumped via /proc/vmallocinfo.  This patch reverts
commit d157a55815ff ("mm/vmalloc.c: check VM_UNINITIALIZED flag in
s_show instead of show_numa_info");

Reviewed-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Mitsuo Hayasaka <mitsuo.hayasaka.hu@hitachi.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/vmalloc.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 814ce9122709..67535f87846c 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -2562,6 +2562,11 @@ static void show_numa_info(struct seq_file *m, struct vm_struct *v)
 		if (!counters)
 			return;
 
+		/* Pair with smp_wmb() in clear_vm_uninitialized_flag() */
+		smp_rmb();
+		if (v->flags & VM_UNINITIALIZED)
+			return;
+
 		memset(counters, 0, nr_node_ids * sizeof(unsigned int));
 
 		for (nr = 0; nr < v->nr_pages; nr++)
@@ -2587,11 +2592,6 @@ static int s_show(struct seq_file *m, void *p)
 
 	v = va->vm;
 
-	/* Pair with smp_wmb() in clear_vm_uninitialized_flag() */
-	smp_rmb();
-	if (v->flags & VM_UNINITIALIZED)
-		return 0;
-
 	seq_printf(m, "0x%pK-0x%pK %7ld",
 		v->addr, v->addr + v->size, v->size);
 
-- 
cgit 


From b82225f3ff5be4c52cb588a4a53686db50aa6eb6 Mon Sep 17 00:00:00 2001
From: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Date: Tue, 12 Nov 2013 15:07:33 -0800
Subject: revert mm/vmalloc.c: emit the failure message before return

Don't warn twice in __vmalloc_area_node and __vmalloc_node_range if
__vmalloc_area_node allocation failure.  This patch reverts commit
46c001a2753f ("mm/vmalloc.c: emit the failure message before return").

Signed-off-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Reviewed-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Mitsuo Hayasaka <mitsuo.hayasaka.hu@hitachi.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/vmalloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 67535f87846c..745fa9567475 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1635,7 +1635,7 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 
 	addr = __vmalloc_area_node(area, gfp_mask, prot, node);
 	if (!addr)
-		goto fail;
+		return NULL;
 
 	/*
 	 * In this function, newly allocated vm_struct has VM_UNINITIALIZED
-- 
cgit 


From 0151e3d6d9d72df8f823c3f991a14ba63fb13f28 Mon Sep 17 00:00:00 2001
From: Christian Hesse <mail@eworm.de>
Date: Tue, 12 Nov 2013 15:07:34 -0800
Subject: Documentation/vm/zswap.txt: fix typos

Signed-off-by: Christian Hesse <mail@eworm.de>
Acked-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Documentation/vm/zswap.txt | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Documentation/vm/zswap.txt b/Documentation/vm/zswap.txt
index 7e492d8aaeaf..00c3d31e7971 100644
--- a/Documentation/vm/zswap.txt
+++ b/Documentation/vm/zswap.txt
@@ -8,7 +8,7 @@ significant performance improvement if reads from the compressed cache are
 faster than reads from a swap device.
 
 NOTE: Zswap is a new feature as of v3.11 and interacts heavily with memory
-reclaim.  This interaction has not be fully explored on the large set of
+reclaim.  This interaction has not been fully explored on the large set of
 potential configurations and workloads that exist.  For this reason, zswap
 is a work in progress and should be considered experimental.
 
@@ -23,7 +23,7 @@ Some potential benefits:
     drastically reducing life-shortening writes.
 
 Zswap evicts pages from compressed cache on an LRU basis to the backing swap
-device when the compressed pool reaches it size limit.  This requirement had
+device when the compressed pool reaches its size limit.  This requirement had
 been identified in prior community discussions.
 
 To enabled zswap, the "enabled" attribute must be set to 1 at boot time.  e.g.
@@ -37,7 +37,7 @@ the backing swap device in the case that the compressed pool is full.
 
 Zswap makes use of zbud for the managing the compressed memory pool.  Each
 allocation in zbud is not directly accessible by address.  Rather, a handle is
-return by the allocation routine and that handle must be mapped before being
+returned by the allocation routine and that handle must be mapped before being
 accessed.  The compressed memory pool grows on demand and shrinks as compressed
 pages are freed.  The pool is not preallocated.
 
@@ -56,7 +56,7 @@ in the swap_map goes to 0) the swap code calls the zswap invalidate function,
 via frontswap, to free the compressed entry.
 
 Zswap seeks to be simple in its policies.  Sysfs attributes allow for one user
-controlled policies:
+controlled policy:
 * max_pool_percent - The maximum percentage of memory that the compressed
     pool can occupy.
 
-- 
cgit 


From 10dc4155c7714f508fe2e4667164925ea971fb25 Mon Sep 17 00:00:00 2001
From: Bob Liu <lliubbo@gmail.com>
Date: Tue, 12 Nov 2013 15:07:35 -0800
Subject: mm: thp: cleanup: mv alloc_hugepage to better place

Move alloc_hugepage() to a better place, no need for a seperate #ifndef
CONFIG_NUMA

Signed-off-by: Bob Liu <bob.liu@oracle.com>
Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Andrew Davidoff <davidoff@qedmf.net>
Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/huge_memory.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 4f7e2113646c..411c4f2c0492 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -759,14 +759,6 @@ static inline struct page *alloc_hugepage_vma(int defrag,
 			       HPAGE_PMD_ORDER, vma, haddr, nd);
 }
 
-#ifndef CONFIG_NUMA
-static inline struct page *alloc_hugepage(int defrag)
-{
-	return alloc_pages(alloc_hugepage_gfpmask(defrag, 0),
-			   HPAGE_PMD_ORDER);
-}
-#endif
-
 static bool set_huge_zero_page(pgtable_t pgtable, struct mm_struct *mm,
 		struct vm_area_struct *vma, unsigned long haddr, pmd_t *pmd,
 		struct page *zero_page)
@@ -2251,6 +2243,12 @@ static struct page
 	return *hpage;
 }
 #else
+static inline struct page *alloc_hugepage(int defrag)
+{
+	return alloc_pages(alloc_hugepage_gfpmask(defrag, 0),
+			   HPAGE_PMD_ORDER);
+}
+
 static struct page *khugepaged_alloc_hugepage(bool *wait)
 {
 	struct page *hpage;
-- 
cgit 


From 9f1b868a13ac36bd207a571f5ea1193d823ab18d Mon Sep 17 00:00:00 2001
From: Bob Liu <lliubbo@gmail.com>
Date: Tue, 12 Nov 2013 15:07:37 -0800
Subject: mm: thp: khugepaged: add policy for finding target node

Khugepaged will scan/free HPAGE_PMD_NR normal pages and replace with a
hugepage which is allocated from the node of the first scanned normal
page, but this policy is too rough and may end with unexpected result to
upper users.

The problem is the original page-balancing among all nodes will be
broken after hugepaged started.  Thinking about the case if the first
scanned normal page is allocated from node A, most of other scanned
normal pages are allocated from node B or C..  But hugepaged will always
allocate hugepage from node A which will cause extra memory pressure on
node A which is not the situation before khugepaged started.

This patch try to fix this problem by making khugepaged allocate
hugepage from the node which have max record of scaned normal pages hit,
so that the effect to original page-balancing can be minimized.

The other problem is if normal scanned pages are equally allocated from
Node A,B and C, after khugepaged started Node A will still suffer extra
memory pressure.

Andrew Davidoff reported a related issue several days ago.  He wanted
his application interleaving among all nodes and "numactl
--interleave=all ./test" was used to run the testcase, but the result
wasn't not as expected.

  cat /proc/2814/numa_maps:
  7f50bd440000 interleave:0-3 anon=51403 dirty=51403 N0=435 N1=435 N2=435 N3=50098

The end result showed that most pages are from Node3 instead of
interleave among node0-3 which was unreasonable.

This patch also fix this issue by allocating hugepage round robin from
all nodes have the same record, after this patch the result was as
expected:

  7f78399c0000 interleave:0-3 anon=51403 dirty=51403 N0=12723 N1=12723 N2=13235 N3=12722

The simple testcase is like this:

int main() {
	char *p;
	int i;
	int j;

	for (i=0; i < 200; i++) {
		p = (char *)malloc(1048576);
		printf("malloc done\n");

		if (p == 0) {
			printf("Out of memory\n");
			return 1;
		}
		for (j=0; j < 1048576; j++) {
			p[j] = 'A';
		}
		printf("touched memory\n");

		sleep(1);
	}
	printf("enter sleep\n");
	while(1) {
		sleep(100);
	}
}

[akpm@linux-foundation.org: make last_khugepaged_target_node local to khugepaged_find_target_node()]
Reported-by: Andrew Davidoff <davidoff@qedmf.net>
Tested-by: Andrew Davidoff <davidoff@qedmf.net>
Signed-off-by: Bob Liu <bob.liu@oracle.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/huge_memory.c | 53 ++++++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 44 insertions(+), 9 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 411c4f2c0492..0556c6a44959 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2191,7 +2191,34 @@ static void khugepaged_alloc_sleep(void)
 			msecs_to_jiffies(khugepaged_alloc_sleep_millisecs));
 }
 
+static int khugepaged_node_load[MAX_NUMNODES];
+
 #ifdef CONFIG_NUMA
+static int khugepaged_find_target_node(void)
+{
+	static int last_khugepaged_target_node = NUMA_NO_NODE;
+	int nid, target_node = 0, max_value = 0;
+
+	/* find first node with max normal pages hit */
+	for (nid = 0; nid < MAX_NUMNODES; nid++)
+		if (khugepaged_node_load[nid] > max_value) {
+			max_value = khugepaged_node_load[nid];
+			target_node = nid;
+		}
+
+	/* do some balance if several nodes have the same hit record */
+	if (target_node <= last_khugepaged_target_node)
+		for (nid = last_khugepaged_target_node + 1; nid < MAX_NUMNODES;
+				nid++)
+			if (max_value == khugepaged_node_load[nid]) {
+				target_node = nid;
+				break;
+			}
+
+	last_khugepaged_target_node = target_node;
+	return target_node;
+}
+
 static bool khugepaged_prealloc_page(struct page **hpage, bool *wait)
 {
 	if (IS_ERR(*hpage)) {
@@ -2225,9 +2252,8 @@ static struct page
 	 * mmap_sem in read mode is good idea also to allow greater
 	 * scalability.
 	 */
-	*hpage  = alloc_hugepage_vma(khugepaged_defrag(), vma, address,
-				      node, __GFP_OTHER_NODE);
-
+	*hpage = alloc_pages_exact_node(node, alloc_hugepage_gfpmask(
+		khugepaged_defrag(), __GFP_OTHER_NODE), HPAGE_PMD_ORDER);
 	/*
 	 * After allocating the hugepage, release the mmap_sem read lock in
 	 * preparation for taking it in write mode.
@@ -2243,6 +2269,11 @@ static struct page
 	return *hpage;
 }
 #else
+static int khugepaged_find_target_node(void)
+{
+	return 0;
+}
+
 static inline struct page *alloc_hugepage(int defrag)
 {
 	return alloc_pages(alloc_hugepage_gfpmask(defrag, 0),
@@ -2455,6 +2486,7 @@ static int khugepaged_scan_pmd(struct mm_struct *mm,
 	if (pmd_trans_huge(*pmd))
 		goto out;
 
+	memset(khugepaged_node_load, 0, sizeof(khugepaged_node_load));
 	pte = pte_offset_map_lock(mm, pmd, address, &ptl);
 	for (_address = address, _pte = pte; _pte < pte+HPAGE_PMD_NR;
 	     _pte++, _address += PAGE_SIZE) {
@@ -2471,12 +2503,13 @@ static int khugepaged_scan_pmd(struct mm_struct *mm,
 		if (unlikely(!page))
 			goto out_unmap;
 		/*
-		 * Chose the node of the first page. This could
-		 * be more sophisticated and look at more pages,
-		 * but isn't for now.
+		 * Record which node the original page is from and save this
+		 * information to khugepaged_node_load[].
+		 * Khupaged will allocate hugepage from the node has the max
+		 * hit record.
 		 */
-		if (node == NUMA_NO_NODE)
-			node = page_to_nid(page);
+		node = page_to_nid(page);
+		khugepaged_node_load[node]++;
 		VM_BUG_ON(PageCompound(page));
 		if (!PageLRU(page) || PageLocked(page) || !PageAnon(page))
 			goto out_unmap;
@@ -2491,9 +2524,11 @@ static int khugepaged_scan_pmd(struct mm_struct *mm,
 		ret = 1;
 out_unmap:
 	pte_unmap_unlock(pte, ptl);
-	if (ret)
+	if (ret) {
+		node = khugepaged_find_target_node();
 		/* collapse_huge_page will return with the mmap_sem released */
 		collapse_huge_page(mm, address, hpage, vma, node);
+	}
 out:
 	return ret;
 }
-- 
cgit 


From b76ac7e734608d706bf225be062a7a46d165dda6 Mon Sep 17 00:00:00 2001
From: Jianguo Wu <wujianguo@huawei.com>
Date: Tue, 12 Nov 2013 15:07:39 -0800
Subject: mm/mempolicy: use NUMA_NO_NODE

Use more appropriate NUMA_NO_NODE instead of -1

Signed-off-by: Jianguo Wu <wujianguo@huawei.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/mempolicy.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 260b8213a873..4cc19f6ab6c6 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -1125,7 +1125,7 @@ int do_migrate_pages(struct mm_struct *mm, const nodemask_t *from,
 	tmp = *from;
 	while (!nodes_empty(tmp)) {
 		int s,d;
-		int source = -1;
+		int source = NUMA_NO_NODE;
 		int dest = 0;
 
 		for_each_node_mask(s, tmp) {
@@ -1160,7 +1160,7 @@ int do_migrate_pages(struct mm_struct *mm, const nodemask_t *from,
 			if (!node_isset(dest, tmp))
 				break;
 		}
-		if (source == -1)
+		if (source == NUMA_NO_NODE)
 			break;
 
 		node_clear(source, tmp);
@@ -1835,7 +1835,7 @@ static unsigned offset_il_node(struct mempolicy *pol,
 	unsigned nnodes = nodes_weight(pol->v.nodes);
 	unsigned target;
 	int c;
-	int nid = -1;
+	int nid = NUMA_NO_NODE;
 
 	if (!nnodes)
 		return numa_node_id();
@@ -1872,11 +1872,11 @@ static inline unsigned interleave_nid(struct mempolicy *pol,
 
 /*
  * Return the bit number of a random bit set in the nodemask.
- * (returns -1 if nodemask is empty)
+ * (returns NUMA_NO_NODE if nodemask is empty)
  */
 int node_random(const nodemask_t *maskp)
 {
-	int w, bit = -1;
+	int w, bit = NUMA_NO_NODE;
 
 	w = nodes_weight(*maskp);
 	if (w)
-- 
cgit 


From 25485de6e90ef1684c55a203988fad5eab7a45d6 Mon Sep 17 00:00:00 2001
From: Greg Thelen <gthelen@google.com>
Date: Tue, 12 Nov 2013 15:07:40 -0800
Subject: memcg: refactor mem_control_numa_stat_show()

Refactor mem_control_numa_stat_show() to use a new stats structure for
smaller and simpler code.  This consolidates nearly identical code.

    text      data      bss        dec      hex   filename
  8,137,679 1,703,496 1,896,448 11,737,623 b31a17 vmlinux.before
  8,136,911 1,703,496 1,896,448 11,736,855 b31717 vmlinux.after

Signed-off-by: Greg Thelen <gthelen@google.com>
Signed-off-by: Ying Han <yinghan@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/memcontrol.c | 56 ++++++++++++++++++++++----------------------------------
 1 file changed, 22 insertions(+), 34 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 3427de9897a5..91b5d3a62059 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -5369,45 +5369,33 @@ static int mem_cgroup_move_charge_write(struct cgroup_subsys_state *css,
 static int memcg_numa_stat_show(struct cgroup_subsys_state *css,
 				struct cftype *cft, struct seq_file *m)
 {
+	struct numa_stat {
+		const char *name;
+		unsigned int lru_mask;
+	};
+
+	static const struct numa_stat stats[] = {
+		{ "total", LRU_ALL },
+		{ "file", LRU_ALL_FILE },
+		{ "anon", LRU_ALL_ANON },
+		{ "unevictable", BIT(LRU_UNEVICTABLE) },
+	};
+	const struct numa_stat *stat;
 	int nid;
-	unsigned long total_nr, file_nr, anon_nr, unevictable_nr;
-	unsigned long node_nr;
+	unsigned long nr;
 	struct mem_cgroup *memcg = mem_cgroup_from_css(css);
 
-	total_nr = mem_cgroup_nr_lru_pages(memcg, LRU_ALL);
-	seq_printf(m, "total=%lu", total_nr);
-	for_each_node_state(nid, N_MEMORY) {
-		node_nr = mem_cgroup_node_nr_lru_pages(memcg, nid, LRU_ALL);
-		seq_printf(m, " N%d=%lu", nid, node_nr);
-	}
-	seq_putc(m, '\n');
-
-	file_nr = mem_cgroup_nr_lru_pages(memcg, LRU_ALL_FILE);
-	seq_printf(m, "file=%lu", file_nr);
-	for_each_node_state(nid, N_MEMORY) {
-		node_nr = mem_cgroup_node_nr_lru_pages(memcg, nid,
-				LRU_ALL_FILE);
-		seq_printf(m, " N%d=%lu", nid, node_nr);
-	}
-	seq_putc(m, '\n');
-
-	anon_nr = mem_cgroup_nr_lru_pages(memcg, LRU_ALL_ANON);
-	seq_printf(m, "anon=%lu", anon_nr);
-	for_each_node_state(nid, N_MEMORY) {
-		node_nr = mem_cgroup_node_nr_lru_pages(memcg, nid,
-				LRU_ALL_ANON);
-		seq_printf(m, " N%d=%lu", nid, node_nr);
+	for (stat = stats; stat < stats + ARRAY_SIZE(stats); stat++) {
+		nr = mem_cgroup_nr_lru_pages(memcg, stat->lru_mask);
+		seq_printf(m, "%s=%lu", stat->name, nr);
+		for_each_node_state(nid, N_MEMORY) {
+			nr = mem_cgroup_node_nr_lru_pages(memcg, nid,
+							  stat->lru_mask);
+			seq_printf(m, " N%d=%lu", nid, nr);
+		}
+		seq_putc(m, '\n');
 	}
-	seq_putc(m, '\n');
 
-	unevictable_nr = mem_cgroup_nr_lru_pages(memcg, BIT(LRU_UNEVICTABLE));
-	seq_printf(m, "unevictable=%lu", unevictable_nr);
-	for_each_node_state(nid, N_MEMORY) {
-		node_nr = mem_cgroup_node_nr_lru_pages(memcg, nid,
-				BIT(LRU_UNEVICTABLE));
-		seq_printf(m, " N%d=%lu", nid, node_nr);
-	}
-	seq_putc(m, '\n');
 	return 0;
 }
 #endif /* CONFIG_NUMA */
-- 
cgit 


From 071aee138410210e3764f3ae8d37ef46dc6d3b42 Mon Sep 17 00:00:00 2001
From: Ying Han <yinghan@google.com>
Date: Tue, 12 Nov 2013 15:07:41 -0800
Subject: memcg: support hierarchical memory.numa_stats

The memory.numa_stat file was not hierarchical.  Memory charged to the
children was not shown in parent's numa_stat.

This change adds the "hierarchical_" stats to the existing stats.  The
new hierarchical stats include the sum of all children's values in
addition to the value of the memcg.

Tested: Create cgroup a, a/b and run workload under b.  The values of
b are included in the "hierarchical_*" under a.

$ cd /sys/fs/cgroup
$ echo 1 > memory.use_hierarchy
$ mkdir a a/b

Run workload in a/b:
$ (echo $BASHPID >> a/b/cgroup.procs && cat /some/file && bash) &

The hierarchical_ fields in parent (a) show use of workload in a/b:
$ cat a/memory.numa_stat
total=0 N0=0 N1=0 N2=0 N3=0
file=0 N0=0 N1=0 N2=0 N3=0
anon=0 N0=0 N1=0 N2=0 N3=0
unevictable=0 N0=0 N1=0 N2=0 N3=0
hierarchical_total=908 N0=552 N1=317 N2=39 N3=0
hierarchical_file=850 N0=549 N1=301 N2=0 N3=0
hierarchical_anon=58 N0=3 N1=16 N2=39 N3=0
hierarchical_unevictable=0 N0=0 N1=0 N2=0 N3=0

$ cat a/b/memory.numa_stat
total=908 N0=552 N1=317 N2=39 N3=0
file=850 N0=549 N1=301 N2=0 N3=0
anon=58 N0=3 N1=16 N2=39 N3=0
unevictable=0 N0=0 N1=0 N2=0 N3=0
hierarchical_total=908 N0=552 N1=317 N2=39 N3=0
hierarchical_file=850 N0=549 N1=301 N2=0 N3=0
hierarchical_anon=58 N0=3 N1=16 N2=39 N3=0
hierarchical_unevictable=0 N0=0 N1=0 N2=0 N3=0

Signed-off-by: Ying Han <yinghan@google.com>
Signed-off-by: Greg Thelen <gthelen@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Documentation/cgroups/memory.txt | 10 +++++++---
 mm/memcontrol.c                  | 17 +++++++++++++++++
 2 files changed, 24 insertions(+), 3 deletions(-)

diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt
index 8af4ad121828..e2bc132608fd 100644
--- a/Documentation/cgroups/memory.txt
+++ b/Documentation/cgroups/memory.txt
@@ -573,15 +573,19 @@ an memcg since the pages are allowed to be allocated from any physical
 node.  One of the use cases is evaluating application performance by
 combining this information with the application's CPU allocation.
 
-We export "total", "file", "anon" and "unevictable" pages per-node for
-each memcg.  The ouput format of memory.numa_stat is:
+Each memcg's numa_stat file includes "total", "file", "anon" and "unevictable"
+per-node page counts including "hierarchical_<counter>" which sums up all
+hierarchical children's values in addition to the memcg's own value.
+
+The ouput format of memory.numa_stat is:
 
 total=<total pages> N0=<node 0 pages> N1=<node 1 pages> ...
 file=<total file pages> N0=<node 0 pages> N1=<node 1 pages> ...
 anon=<total anon pages> N0=<node 0 pages> N1=<node 1 pages> ...
 unevictable=<total anon pages> N0=<node 0 pages> N1=<node 1 pages> ...
+hierarchical_<counter>=<counter pages> N0=<node 0 pages> N1=<node 1 pages> ...
 
-And we have total = file + anon + unevictable.
+The "total" count is sum of file + anon + unevictable.
 
 6. Hierarchy support
 
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 91b5d3a62059..c89072443166 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -5396,6 +5396,23 @@ static int memcg_numa_stat_show(struct cgroup_subsys_state *css,
 		seq_putc(m, '\n');
 	}
 
+	for (stat = stats; stat < stats + ARRAY_SIZE(stats); stat++) {
+		struct mem_cgroup *iter;
+
+		nr = 0;
+		for_each_mem_cgroup_tree(iter, memcg)
+			nr += mem_cgroup_nr_lru_pages(iter, stat->lru_mask);
+		seq_printf(m, "hierarchical_%s=%lu", stat->name, nr);
+		for_each_node_state(nid, N_MEMORY) {
+			nr = 0;
+			for_each_mem_cgroup_tree(iter, memcg)
+				nr += mem_cgroup_node_nr_lru_pages(
+					iter, nid, stat->lru_mask);
+			seq_printf(m, " N%d=%lu", nid, nr);
+		}
+		seq_putc(m, '\n');
+	}
+
 	return 0;
 }
 #endif /* CONFIG_NUMA */
-- 
cgit 


From 85b35feaecd4d2284505b22708795bc1f03fc897 Mon Sep 17 00:00:00 2001
From: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Date: Tue, 12 Nov 2013 15:07:42 -0800
Subject: mm/sparsemem: use PAGES_PER_SECTION to remove redundant nr_pages
 parameter

For below functions,

- sparse_add_one_section()
- kmalloc_section_memmap()
- __kmalloc_section_memmap()
- __kfree_section_memmap()

they are always invoked to operate on one memory section, so it is
redundant to always pass a nr_pages parameter, which is the page numbers
in one section.  So we can directly use predefined macro PAGES_PER_SECTION
instead of passing the parameter.

Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Toshi Kani <toshi.kani@hp.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/memory_hotplug.h |  3 +--
 mm/memory_hotplug.c            |  3 +--
 mm/sparse.c                    | 33 +++++++++++++++------------------
 3 files changed, 17 insertions(+), 22 deletions(-)

diff --git a/include/linux/memory_hotplug.h b/include/linux/memory_hotplug.h
index 22203c293f07..4ca3d951fe91 100644
--- a/include/linux/memory_hotplug.h
+++ b/include/linux/memory_hotplug.h
@@ -268,8 +268,7 @@ extern int arch_add_memory(int nid, u64 start, u64 size);
 extern int offline_pages(unsigned long start_pfn, unsigned long nr_pages);
 extern bool is_memblock_offlined(struct memory_block *mem);
 extern void remove_memory(int nid, u64 start, u64 size);
-extern int sparse_add_one_section(struct zone *zone, unsigned long start_pfn,
-								int nr_pages);
+extern int sparse_add_one_section(struct zone *zone, unsigned long start_pfn);
 extern void sparse_remove_one_section(struct zone *zone, struct mem_section *ms);
 extern struct page *sparse_decode_mem_map(unsigned long coded_mem_map,
 					  unsigned long pnum);
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 8285346be663..1b6fe8ca71e6 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -401,13 +401,12 @@ static int __meminit __add_zone(struct zone *zone, unsigned long phys_start_pfn)
 static int __meminit __add_section(int nid, struct zone *zone,
 					unsigned long phys_start_pfn)
 {
-	int nr_pages = PAGES_PER_SECTION;
 	int ret;
 
 	if (pfn_valid(phys_start_pfn))
 		return -EEXIST;
 
-	ret = sparse_add_one_section(zone, phys_start_pfn, nr_pages);
+	ret = sparse_add_one_section(zone, phys_start_pfn);
 
 	if (ret < 0)
 		return ret;
diff --git a/mm/sparse.c b/mm/sparse.c
index 4ac1d7ef548f..fbb9dbc6aca9 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -590,16 +590,15 @@ void __init sparse_init(void)
 
 #ifdef CONFIG_MEMORY_HOTPLUG
 #ifdef CONFIG_SPARSEMEM_VMEMMAP
-static inline struct page *kmalloc_section_memmap(unsigned long pnum, int nid,
-						 unsigned long nr_pages)
+static inline struct page *kmalloc_section_memmap(unsigned long pnum, int nid)
 {
 	/* This will make the necessary allocations eventually. */
 	return sparse_mem_map_populate(pnum, nid);
 }
-static void __kfree_section_memmap(struct page *memmap, unsigned long nr_pages)
+static void __kfree_section_memmap(struct page *memmap)
 {
 	unsigned long start = (unsigned long)memmap;
-	unsigned long end = (unsigned long)(memmap + nr_pages);
+	unsigned long end = (unsigned long)(memmap + PAGES_PER_SECTION);
 
 	vmemmap_free(start, end);
 }
@@ -613,10 +612,10 @@ static void free_map_bootmem(struct page *memmap, unsigned long nr_pages)
 }
 #endif /* CONFIG_MEMORY_HOTREMOVE */
 #else
-static struct page *__kmalloc_section_memmap(unsigned long nr_pages)
+static struct page *__kmalloc_section_memmap(void)
 {
 	struct page *page, *ret;
-	unsigned long memmap_size = sizeof(struct page) * nr_pages;
+	unsigned long memmap_size = sizeof(struct page) * PAGES_PER_SECTION;
 
 	page = alloc_pages(GFP_KERNEL|__GFP_NOWARN, get_order(memmap_size));
 	if (page)
@@ -634,19 +633,18 @@ got_map_ptr:
 	return ret;
 }
 
-static inline struct page *kmalloc_section_memmap(unsigned long pnum, int nid,
-						  unsigned long nr_pages)
+static inline struct page *kmalloc_section_memmap(unsigned long pnum, int nid)
 {
-	return __kmalloc_section_memmap(nr_pages);
+	return __kmalloc_section_memmap();
 }
 
-static void __kfree_section_memmap(struct page *memmap, unsigned long nr_pages)
+static void __kfree_section_memmap(struct page *memmap)
 {
 	if (is_vmalloc_addr(memmap))
 		vfree(memmap);
 	else
 		free_pages((unsigned long)memmap,
-			   get_order(sizeof(struct page) * nr_pages));
+			   get_order(sizeof(struct page) * PAGES_PER_SECTION));
 }
 
 #ifdef CONFIG_MEMORY_HOTREMOVE
@@ -684,8 +682,7 @@ static void free_map_bootmem(struct page *memmap, unsigned long nr_pages)
  * set.  If this is <=0, then that means that the passed-in
  * map was not consumed and must be freed.
  */
-int __meminit sparse_add_one_section(struct zone *zone, unsigned long start_pfn,
-			   int nr_pages)
+int __meminit sparse_add_one_section(struct zone *zone, unsigned long start_pfn)
 {
 	unsigned long section_nr = pfn_to_section_nr(start_pfn);
 	struct pglist_data *pgdat = zone->zone_pgdat;
@@ -702,12 +699,12 @@ int __meminit sparse_add_one_section(struct zone *zone, unsigned long start_pfn,
 	ret = sparse_index_init(section_nr, pgdat->node_id);
 	if (ret < 0 && ret != -EEXIST)
 		return ret;
-	memmap = kmalloc_section_memmap(section_nr, pgdat->node_id, nr_pages);
+	memmap = kmalloc_section_memmap(section_nr, pgdat->node_id);
 	if (!memmap)
 		return -ENOMEM;
 	usemap = __kmalloc_section_usemap();
 	if (!usemap) {
-		__kfree_section_memmap(memmap, nr_pages);
+		__kfree_section_memmap(memmap);
 		return -ENOMEM;
 	}
 
@@ -719,7 +716,7 @@ int __meminit sparse_add_one_section(struct zone *zone, unsigned long start_pfn,
 		goto out;
 	}
 
-	memset(memmap, 0, sizeof(struct page) * nr_pages);
+	memset(memmap, 0, sizeof(struct page) * PAGES_PER_SECTION);
 
 	ms->section_mem_map |= SECTION_MARKED_PRESENT;
 
@@ -729,7 +726,7 @@ out:
 	pgdat_resize_unlock(pgdat, &flags);
 	if (ret <= 0) {
 		kfree(usemap);
-		__kfree_section_memmap(memmap, nr_pages);
+		__kfree_section_memmap(memmap);
 	}
 	return ret;
 }
@@ -771,7 +768,7 @@ static void free_section_usemap(struct page *memmap, unsigned long *usemap)
 	if (PageSlab(usemap_page) || PageCompound(usemap_page)) {
 		kfree(usemap);
 		if (memmap)
-			__kfree_section_memmap(memmap, PAGES_PER_SECTION);
+			__kfree_section_memmap(memmap);
 		return;
 	}
 
-- 
cgit 


From 81556b02525181e19ef073a798ba9d48db96f708 Mon Sep 17 00:00:00 2001
From: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Date: Tue, 12 Nov 2013 15:07:43 -0800
Subject: mm/sparsemem: fix a bug in free_map_bootmem when
 CONFIG_SPARSEMEM_VMEMMAP

We pass the number of pages which hold page structs of a memory section
to free_map_bootmem().  This is right when !CONFIG_SPARSEMEM_VMEMMAP but
wrong when CONFIG_SPARSEMEM_VMEMMAP.  When CONFIG_SPARSEMEM_VMEMMAP, we
should pass the number of pages of a memory section to free_map_bootmem.

So the fix is removing the nr_pages parameter.  When
CONFIG_SPARSEMEM_VMEMMAP, we directly use the prefined marco
PAGES_PER_SECTION in free_map_bootmem.  When !CONFIG_SPARSEMEM_VMEMMAP,
we calculate page numbers needed to hold the page structs for a memory
section and use the value in free_map_bootmem().

This was found by reading the code.  And I have no machine that support
memory hot-remove to test the bug now.

Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Cc: Tang Chen <tangchen@cn.fujitsu.com>
Cc: Toshi Kani <toshi.kani@hp.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/sparse.c | 20 +++++++++-----------
 1 file changed, 9 insertions(+), 11 deletions(-)

diff --git a/mm/sparse.c b/mm/sparse.c
index fbb9dbc6aca9..8cc7be0e9590 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -603,10 +603,10 @@ static void __kfree_section_memmap(struct page *memmap)
 	vmemmap_free(start, end);
 }
 #ifdef CONFIG_MEMORY_HOTREMOVE
-static void free_map_bootmem(struct page *memmap, unsigned long nr_pages)
+static void free_map_bootmem(struct page *memmap)
 {
 	unsigned long start = (unsigned long)memmap;
-	unsigned long end = (unsigned long)(memmap + nr_pages);
+	unsigned long end = (unsigned long)(memmap + PAGES_PER_SECTION);
 
 	vmemmap_free(start, end);
 }
@@ -648,12 +648,15 @@ static void __kfree_section_memmap(struct page *memmap)
 }
 
 #ifdef CONFIG_MEMORY_HOTREMOVE
-static void free_map_bootmem(struct page *memmap, unsigned long nr_pages)
+static void free_map_bootmem(struct page *memmap)
 {
 	unsigned long maps_section_nr, removing_section_nr, i;
-	unsigned long magic;
+	unsigned long magic, nr_pages;
 	struct page *page = virt_to_page(memmap);
 
+	nr_pages = PAGE_ALIGN(PAGES_PER_SECTION * sizeof(struct page))
+		>> PAGE_SHIFT;
+
 	for (i = 0; i < nr_pages; i++, page++) {
 		magic = (unsigned long) page->lru.next;
 
@@ -756,7 +759,6 @@ static inline void clear_hwpoisoned_pages(struct page *memmap, int nr_pages)
 static void free_section_usemap(struct page *memmap, unsigned long *usemap)
 {
 	struct page *usemap_page;
-	unsigned long nr_pages;
 
 	if (!usemap)
 		return;
@@ -777,12 +779,8 @@ static void free_section_usemap(struct page *memmap, unsigned long *usemap)
 	 * on the section which has pgdat at boot time. Just keep it as is now.
 	 */
 
-	if (memmap) {
-		nr_pages = PAGE_ALIGN(PAGES_PER_SECTION * sizeof(struct page))
-			>> PAGE_SHIFT;
-
-		free_map_bootmem(memmap, nr_pages);
-	}
+	if (memmap)
+		free_map_bootmem(memmap);
 }
 
 void sparse_remove_one_section(struct zone *zone, struct mem_section *ms)
-- 
cgit 


From 7f88f88f83ed609650a01b18572e605ea50cd163 Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Tue, 12 Nov 2013 15:07:45 -0800
Subject: mm: kmemleak: avoid false negatives on vmalloc'ed objects

Commit 248ac0e1943a ("mm/vmalloc: remove guard page from between vmap
blocks") had the side effect of making vmap_area.va_end member point to
the next vmap_area.va_start.  This was creating an artificial reference
to vmalloc'ed objects and kmemleak was rarely reporting vmalloc() leaks.

This patch marks the vmap_area containing pointers explicitly and
reduces the min ref_count to 2 as vm_struct still contains a reference
to the vmalloc'ed object.  The kmemleak add_scan_area() function has
been improved to allow a SIZE_MAX argument covering the rest of the
object (for simpler calling sites).

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/kmemleak.c |  4 +++-
 mm/vmalloc.c  | 14 ++++++++++----
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index e126b0ef9ad2..31f01c5011e5 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -753,7 +753,9 @@ static void add_scan_area(unsigned long ptr, size_t size, gfp_t gfp)
 	}
 
 	spin_lock_irqsave(&object->lock, flags);
-	if (ptr + size > object->pointer + object->size) {
+	if (size == SIZE_MAX) {
+		size = object->pointer + object->size - ptr;
+	} else if (ptr + size > object->pointer + object->size) {
 		kmemleak_warn("Scan area larger than object 0x%08lx\n", ptr);
 		dump_object_info(object);
 		kmem_cache_free(scan_area_cache, area);
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 745fa9567475..0fdf96803c5b 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -359,6 +359,12 @@ static struct vmap_area *alloc_vmap_area(unsigned long size,
 	if (unlikely(!va))
 		return ERR_PTR(-ENOMEM);
 
+	/*
+	 * Only scan the relevant parts containing pointers to other objects
+	 * to avoid false negatives.
+	 */
+	kmemleak_scan_area(&va->rb_node, SIZE_MAX, gfp_mask & GFP_RECLAIM_MASK);
+
 retry:
 	spin_lock(&vmap_area_lock);
 	/*
@@ -1645,11 +1651,11 @@ void *__vmalloc_node_range(unsigned long size, unsigned long align,
 	clear_vm_uninitialized_flag(area);
 
 	/*
-	 * A ref_count = 3 is needed because the vm_struct and vmap_area
-	 * structures allocated in the __get_vm_area_node() function contain
-	 * references to the virtual address of the vmalloc'ed block.
+	 * A ref_count = 2 is needed because vm_struct allocated in
+	 * __get_vm_area_node() contains a reference to the virtual address of
+	 * the vmalloc'ed block.
 	 */
-	kmemleak_alloc(addr, real_size, 3, gfp_mask);
+	kmemleak_alloc(addr, real_size, 2, gfp_mask);
 
 	return addr;
 
-- 
cgit 


From 2de1a7e40a30bed83f3da60d8cf0937354d9e7d1 Mon Sep 17 00:00:00 2001
From: Seth Jennings <sjenning@linux.vnet.ibm.com>
Date: Tue, 12 Nov 2013 15:07:46 -0800
Subject: mm/swapfile.c: fix comment typos

Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/swapfile.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/mm/swapfile.c b/mm/swapfile.c
index de7c904e52e5..64458e3997bc 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -707,7 +707,7 @@ noswap:
 	return (swp_entry_t) {0};
 }
 
-/* The only caller of this function is now susupend routine */
+/* The only caller of this function is now suspend routine */
 swp_entry_t get_swap_page_of_type(int type)
 {
 	struct swap_info_struct *si;
@@ -845,7 +845,7 @@ static unsigned char swap_entry_free(struct swap_info_struct *p,
 }
 
 /*
- * Caller has made sure that the swapdevice corresponding to entry
+ * Caller has made sure that the swap device corresponding to entry
  * is still around or has not been recycled.
  */
 void swap_free(swp_entry_t entry)
@@ -947,7 +947,7 @@ int try_to_free_swap(struct page *page)
 	 * original page might be freed under memory pressure, then
 	 * later read back in from swap, now with the wrong data.
 	 *
-	 * Hibration suspends storage while it is writing the image
+	 * Hibernation suspends storage while it is writing the image
 	 * to disk so check that here.
 	 */
 	if (pm_suspended_storage())
@@ -1179,7 +1179,7 @@ static int unuse_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
 	 * some architectures (e.g. x86_32 with PAE) we might catch a glimpse
 	 * of unmatched parts which look like swp_pte, so unuse_pte must
 	 * recheck under pte lock.  Scanning without pte lock lets it be
-	 * preemptible whenever CONFIG_PREEMPT but not CONFIG_HIGHPTE.
+	 * preemptable whenever CONFIG_PREEMPT but not CONFIG_HIGHPTE.
 	 */
 	pte = pte_offset_map(pmd, addr);
 	do {
@@ -1934,7 +1934,7 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
 	vfree(swap_map);
 	vfree(cluster_info);
 	vfree(frontswap_map);
-	/* Destroy swap account informatin */
+	/* Destroy swap account information */
 	swap_cgroup_swapoff(type);
 
 	inode = mapping->host;
@@ -2786,8 +2786,8 @@ int add_swap_count_continuation(swp_entry_t entry, gfp_t gfp_mask)
 
 	/*
 	 * We are fortunate that although vmalloc_to_page uses pte_offset_map,
-	 * no architecture is using highmem pages for kernel pagetables: so it
-	 * will not corrupt the GFP_ATOMIC caller's atomic pagetable kmaps.
+	 * no architecture is using highmem pages for kernel page tables: so it
+	 * will not corrupt the GFP_ATOMIC caller's atomic page table kmaps.
 	 */
 	head = vmalloc_to_page(si->swap_map + offset);
 	offset &= ~PAGE_MASK;
-- 
cgit 


From 58e97ba6b1a0c78d0c847998cf3bcfa5344c19aa Mon Sep 17 00:00:00 2001
From: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Date: Tue, 12 Nov 2013 15:07:47 -0800
Subject: frontswap: enable call to invalidate area on swapoff

During swapoff the frontswap_map was NULL-ified before calling
frontswap_invalidate_area().  However the frontswap_invalidate_area()
exits early if frontswap_map is NULL.  Invalidate was never called
during swapoff.

This patch moves frontswap_map_set() in swapoff just after calling
frontswap_invalidate_area() so outside of locks (swap_lock and
swap_info_struct->lock).  This shouldn't be a problem as during swapon
the frontswap_map_set() is called also outside of any locks.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Shaohua Li <shli@fusionio.com>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/swapfile.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/swapfile.c b/mm/swapfile.c
index 64458e3997bc..612a7c9795f6 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -1924,10 +1924,10 @@ SYSCALL_DEFINE1(swapoff, const char __user *, specialfile)
 	p->cluster_info = NULL;
 	p->flags = 0;
 	frontswap_map = frontswap_map_get(p);
-	frontswap_map_set(p, NULL);
 	spin_unlock(&p->lock);
 	spin_unlock(&swap_lock);
 	frontswap_invalidate_area(type);
+	frontswap_map_set(p, NULL);
 	mutex_unlock(&swapon_mutex);
 	free_percpu(p->percpu_cluster);
 	p->percpu_cluster = NULL;
-- 
cgit 


From bfc4f9d5206739d0612782508a39e93b0793609d Mon Sep 17 00:00:00 2001
From: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Date: Tue, 12 Nov 2013 15:07:48 -0800
Subject: mm/page_alloc.c: remove unused marco LONG_ALIGN

Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/page_alloc.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index e0412c026e0d..770dbb43465f 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -3881,8 +3881,6 @@ static inline unsigned long wait_table_bits(unsigned long size)
 	return ffz(~size);
 }
 
-#define LONG_ALIGN(x) (((x)+(sizeof(long))-1)&~((sizeof(long))-1))
-
 /*
  * Check if a pageblock contains reserved pages
  */
-- 
cgit 


From ec8e41aec13005fed0dbee002fb8c99b4e001d50 Mon Sep 17 00:00:00 2001
From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Date: Tue, 12 Nov 2013 15:07:49 -0800
Subject: /proc/pid/smaps: show VM_SOFTDIRTY flag in VmFlags line

This flag shows that the VMA is "newly created" and thus represents
"dirty" in the task's VM.

You can clear it by "echo 4 > /proc/pid/clear_refs."

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Acked-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Documentation/filesystems/proc.txt | 1 +
 fs/proc/task_mmu.c                 | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index 823c95faebd2..22d89aa37218 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -460,6 +460,7 @@ manner. The codes are the following:
     nl  - non-linear mapping
     ar  - architecture specific flag
     dd  - do not include area into core dump
+    sd  - soft-dirty flag
     mm  - mixed map area
     hg  - huge page advise flag
     nh  - no-huge page advise flag
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 9f1369fe0afb..abbe825d20ff 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -561,6 +561,9 @@ static void show_smap_vma_flags(struct seq_file *m, struct vm_area_struct *vma)
 		[ilog2(VM_NONLINEAR)]	= "nl",
 		[ilog2(VM_ARCH_1)]	= "ar",
 		[ilog2(VM_DONTDUMP)]	= "dd",
+#ifdef CONFIG_MEM_SOFT_DIRTY
+		[ilog2(VM_SOFTDIRTY)]	= "sd",
+#endif
 		[ilog2(VM_MIXEDMAP)]	= "mm",
 		[ilog2(VM_HUGEPAGE)]	= "hg",
 		[ilog2(VM_NOHUGEPAGE)]	= "nh",
-- 
cgit 


From 46c77e2bb07eba3b38edfec76873f12942c49dd3 Mon Sep 17 00:00:00 2001
From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Date: Tue, 12 Nov 2013 15:07:50 -0800
Subject: tools/vm/page-types.c: support KPF_SOFTDIRTY bit

Soft dirty bit allows us to track which pages are written since the last
clear_ref (by "echo 4 > /proc/pid/clear_refs".) This is useful for
userspace applications to know their memory footprints.

Note that the kernel exposes this flag via bit[55] of /proc/pid/pagemap,
and the semantics is not a default one (scheduled to be the default in the
near future.) However, it shifts to the new semantics at the first
clear_ref, and the users of soft dirty bit always do it before utilizing
the bit, so that's not a big deal.  Users must avoid relying on the bit in
page-types before the first clear_ref.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Wu Fengguang <fengguang.wu@intel.com>
Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/kernel-page-flags.h |  1 +
 tools/vm/page-types.c             | 32 ++++++++++++++++++++------------
 2 files changed, 21 insertions(+), 12 deletions(-)

diff --git a/include/linux/kernel-page-flags.h b/include/linux/kernel-page-flags.h
index 546eb6a76934..f65ce09784f1 100644
--- a/include/linux/kernel-page-flags.h
+++ b/include/linux/kernel-page-flags.h
@@ -15,5 +15,6 @@
 #define KPF_OWNER_PRIVATE	37
 #define KPF_ARCH		38
 #define KPF_UNCACHED		39
+#define KPF_SOFTDIRTY		40
 
 #endif /* LINUX_KERNEL_PAGE_FLAGS_H */
diff --git a/tools/vm/page-types.c b/tools/vm/page-types.c
index 71c9c2511ee7..d5e9d6d185c8 100644
--- a/tools/vm/page-types.c
+++ b/tools/vm/page-types.c
@@ -59,12 +59,14 @@
 #define PM_PSHIFT_BITS      6
 #define PM_PSHIFT_OFFSET    (PM_STATUS_OFFSET - PM_PSHIFT_BITS)
 #define PM_PSHIFT_MASK      (((1LL << PM_PSHIFT_BITS) - 1) << PM_PSHIFT_OFFSET)
-#define PM_PSHIFT(x)        (((u64) (x) << PM_PSHIFT_OFFSET) & PM_PSHIFT_MASK)
+#define __PM_PSHIFT(x)      (((uint64_t) (x) << PM_PSHIFT_OFFSET) & PM_PSHIFT_MASK)
 #define PM_PFRAME_MASK      ((1LL << PM_PSHIFT_OFFSET) - 1)
 #define PM_PFRAME(x)        ((x) & PM_PFRAME_MASK)
 
+#define __PM_SOFT_DIRTY      (1LL)
 #define PM_PRESENT          PM_STATUS(4LL)
 #define PM_SWAP             PM_STATUS(2LL)
+#define PM_SOFT_DIRTY       __PM_PSHIFT(__PM_SOFT_DIRTY)
 
 
 /*
@@ -83,6 +85,7 @@
 #define KPF_OWNER_PRIVATE	37
 #define KPF_ARCH		38
 #define KPF_UNCACHED		39
+#define KPF_SOFTDIRTY		40
 
 /* [48-] take some arbitrary free slots for expanding overloaded flags
  * not part of kernel API
@@ -132,6 +135,7 @@ static const char * const page_flag_names[] = {
 	[KPF_OWNER_PRIVATE]	= "O:owner_private",
 	[KPF_ARCH]		= "h:arch",
 	[KPF_UNCACHED]		= "c:uncached",
+	[KPF_SOFTDIRTY]		= "f:softdirty",
 
 	[KPF_READAHEAD]		= "I:readahead",
 	[KPF_SLOB_FREE]		= "P:slob_free",
@@ -417,7 +421,7 @@ static int bit_mask_ok(uint64_t flags)
 	return 1;
 }
 
-static uint64_t expand_overloaded_flags(uint64_t flags)
+static uint64_t expand_overloaded_flags(uint64_t flags, uint64_t pme)
 {
 	/* SLOB/SLUB overload several page flags */
 	if (flags & BIT(SLAB)) {
@@ -433,6 +437,9 @@ static uint64_t expand_overloaded_flags(uint64_t flags)
 	if ((flags & (BIT(RECLAIM) | BIT(WRITEBACK))) == BIT(RECLAIM))
 		flags ^= BIT(RECLAIM) | BIT(READAHEAD);
 
+	if (pme & PM_SOFT_DIRTY)
+		flags |= BIT(SOFTDIRTY);
+
 	return flags;
 }
 
@@ -448,11 +455,11 @@ static uint64_t well_known_flags(uint64_t flags)
 	return flags;
 }
 
-static uint64_t kpageflags_flags(uint64_t flags)
+static uint64_t kpageflags_flags(uint64_t flags, uint64_t pme)
 {
-	flags = expand_overloaded_flags(flags);
-
-	if (!opt_raw)
+	if (opt_raw)
+		flags = expand_overloaded_flags(flags, pme);
+	else
 		flags = well_known_flags(flags);
 
 	return flags;
@@ -545,9 +552,9 @@ static size_t hash_slot(uint64_t flags)
 }
 
 static void add_page(unsigned long voffset,
-		     unsigned long offset, uint64_t flags)
+		     unsigned long offset, uint64_t flags, uint64_t pme)
 {
-	flags = kpageflags_flags(flags);
+	flags = kpageflags_flags(flags, pme);
 
 	if (!bit_mask_ok(flags))
 		return;
@@ -569,7 +576,8 @@ static void add_page(unsigned long voffset,
 #define KPAGEFLAGS_BATCH	(64 << 10)	/* 64k pages */
 static void walk_pfn(unsigned long voffset,
 		     unsigned long index,
-		     unsigned long count)
+		     unsigned long count,
+		     uint64_t pme)
 {
 	uint64_t buf[KPAGEFLAGS_BATCH];
 	unsigned long batch;
@@ -583,7 +591,7 @@ static void walk_pfn(unsigned long voffset,
 			break;
 
 		for (i = 0; i < pages; i++)
-			add_page(voffset + i, index + i, buf[i]);
+			add_page(voffset + i, index + i, buf[i], pme);
 
 		index += pages;
 		count -= pages;
@@ -608,7 +616,7 @@ static void walk_vma(unsigned long index, unsigned long count)
 		for (i = 0; i < pages; i++) {
 			pfn = pagemap_pfn(buf[i]);
 			if (pfn)
-				walk_pfn(index + i, pfn, 1);
+				walk_pfn(index + i, pfn, 1, buf[i]);
 		}
 
 		index += pages;
@@ -659,7 +667,7 @@ static void walk_addr_ranges(void)
 
 	for (i = 0; i < nr_addr_ranges; i++)
 		if (!opt_pid)
-			walk_pfn(0, opt_offset[i], opt_size[i]);
+			walk_pfn(0, opt_offset[i], opt_size[i], 0);
 		else
 			walk_task(opt_offset[i], opt_size[i]);
 
-- 
cgit 


From c4a391b53a72d2df4ee97f96f78c1d5971b47489 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Tue, 12 Nov 2013 15:07:51 -0800
Subject: writeback: do not sync data dirtied after sync start

When there are processes heavily creating small files while sync(2) is
running, it can easily happen that quite some new files are created
between WB_SYNC_NONE and WB_SYNC_ALL pass of sync(2).  That can happen
especially if there are several busy filesystems (remember that sync
traverses filesystems sequentially and waits in WB_SYNC_ALL phase on one
fs before starting it on another fs).  Because WB_SYNC_ALL pass is slow
(e.g.  causes a transaction commit and cache flush for each inode in
ext3), resulting sync(2) times are rather large.

The following script reproduces the problem:

  function run_writers
  {
    for (( i = 0; i < 10; i++ )); do
      mkdir $1/dir$i
      for (( j = 0; j < 40000; j++ )); do
        dd if=/dev/zero of=$1/dir$i/$j bs=4k count=4 &>/dev/null
      done &
    done
  }

  for dir in "$@"; do
    run_writers $dir
  done

  sleep 40
  time sync

Fix the problem by disregarding inodes dirtied after sync(2) was called
in the WB_SYNC_ALL pass.  To allow for this, sync_inodes_sb() now takes
a time stamp when sync has started which is used for setting up work for
flusher threads.

To give some numbers, when above script is run on two ext4 filesystems
on simple SATA drive, the average sync time from 10 runs is 267.549
seconds with standard deviation 104.799426.  With the patched kernel,
the average sync time from 10 runs is 2.995 seconds with standard
deviation 0.096.

Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Fengguang Wu <fengguang.wu@intel.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/fs-writeback.c                | 33 ++++++++++++++++++++++-----------
 fs/sync.c                        | 15 +++++++++------
 fs/xfs/xfs_super.c               |  2 +-
 include/linux/writeback.h        |  2 +-
 include/trace/events/writeback.h |  6 +++---
 5 files changed, 36 insertions(+), 22 deletions(-)

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 9f4935b8f208..4afdbd6d9678 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -39,13 +39,18 @@
 struct wb_writeback_work {
 	long nr_pages;
 	struct super_block *sb;
-	unsigned long *older_than_this;
+	/*
+	 * Write only inodes dirtied before this time. Don't forget to set
+	 * older_than_this_is_set when you set this.
+	 */
+	unsigned long older_than_this;
 	enum writeback_sync_modes sync_mode;
 	unsigned int tagged_writepages:1;
 	unsigned int for_kupdate:1;
 	unsigned int range_cyclic:1;
 	unsigned int for_background:1;
 	unsigned int for_sync:1;	/* sync(2) WB_SYNC_ALL writeback */
+	unsigned int older_than_this_is_set:1;
 	enum wb_reason reason;		/* why was writeback initiated? */
 
 	struct list_head list;		/* pending work list */
@@ -246,10 +251,10 @@ static int move_expired_inodes(struct list_head *delaying_queue,
 	int do_sb_sort = 0;
 	int moved = 0;
 
+	WARN_ON_ONCE(!work->older_than_this_is_set);
 	while (!list_empty(delaying_queue)) {
 		inode = wb_inode(delaying_queue->prev);
-		if (work->older_than_this &&
-		    inode_dirtied_after(inode, *work->older_than_this))
+		if (inode_dirtied_after(inode, work->older_than_this))
 			break;
 		list_move(&inode->i_wb_list, &tmp);
 		moved++;
@@ -733,6 +738,8 @@ static long writeback_inodes_wb(struct bdi_writeback *wb, long nr_pages,
 		.sync_mode	= WB_SYNC_NONE,
 		.range_cyclic	= 1,
 		.reason		= reason,
+		.older_than_this = jiffies,
+		.older_than_this_is_set = 1,
 	};
 
 	spin_lock(&wb->list_lock);
@@ -791,12 +798,13 @@ static long wb_writeback(struct bdi_writeback *wb,
 {
 	unsigned long wb_start = jiffies;
 	long nr_pages = work->nr_pages;
-	unsigned long oldest_jif;
 	struct inode *inode;
 	long progress;
 
-	oldest_jif = jiffies;
-	work->older_than_this = &oldest_jif;
+	if (!work->older_than_this_is_set) {
+		work->older_than_this = jiffies;
+		work->older_than_this_is_set = 1;
+	}
 
 	spin_lock(&wb->list_lock);
 	for (;;) {
@@ -830,10 +838,10 @@ static long wb_writeback(struct bdi_writeback *wb,
 		 * safe.
 		 */
 		if (work->for_kupdate) {
-			oldest_jif = jiffies -
+			work->older_than_this = jiffies -
 				msecs_to_jiffies(dirty_expire_interval * 10);
 		} else if (work->for_background)
-			oldest_jif = jiffies;
+			work->older_than_this = jiffies;
 
 		trace_writeback_start(wb->bdi, work);
 		if (list_empty(&wb->b_io))
@@ -1345,18 +1353,21 @@ EXPORT_SYMBOL(try_to_writeback_inodes_sb);
 
 /**
  * sync_inodes_sb	-	sync sb inode pages
- * @sb: the superblock
+ * @sb:			the superblock
+ * @older_than_this:	timestamp
  *
  * This function writes and waits on any dirty inode belonging to this
- * super_block.
+ * superblock that has been dirtied before given timestamp.
  */
-void sync_inodes_sb(struct super_block *sb)
+void sync_inodes_sb(struct super_block *sb, unsigned long older_than_this)
 {
 	DECLARE_COMPLETION_ONSTACK(done);
 	struct wb_writeback_work work = {
 		.sb		= sb,
 		.sync_mode	= WB_SYNC_ALL,
 		.nr_pages	= LONG_MAX,
+		.older_than_this = older_than_this,
+		.older_than_this_is_set = 1,
 		.range_cyclic	= 0,
 		.done		= &done,
 		.reason		= WB_REASON_SYNC,
diff --git a/fs/sync.c b/fs/sync.c
index 905f3f6b3d85..ff96f99fef64 100644
--- a/fs/sync.c
+++ b/fs/sync.c
@@ -27,10 +27,11 @@
  * wait == 1 case since in that case write_inode() functions do
  * sync_dirty_buffer() and thus effectively write one block at a time.
  */
-static int __sync_filesystem(struct super_block *sb, int wait)
+static int __sync_filesystem(struct super_block *sb, int wait,
+			     unsigned long start)
 {
 	if (wait)
-		sync_inodes_sb(sb);
+		sync_inodes_sb(sb, start);
 	else
 		writeback_inodes_sb(sb, WB_REASON_SYNC);
 
@@ -47,6 +48,7 @@ static int __sync_filesystem(struct super_block *sb, int wait)
 int sync_filesystem(struct super_block *sb)
 {
 	int ret;
+	unsigned long start = jiffies;
 
 	/*
 	 * We need to be protected against the filesystem going from
@@ -60,17 +62,17 @@ int sync_filesystem(struct super_block *sb)
 	if (sb->s_flags & MS_RDONLY)
 		return 0;
 
-	ret = __sync_filesystem(sb, 0);
+	ret = __sync_filesystem(sb, 0, start);
 	if (ret < 0)
 		return ret;
-	return __sync_filesystem(sb, 1);
+	return __sync_filesystem(sb, 1, start);
 }
 EXPORT_SYMBOL_GPL(sync_filesystem);
 
 static void sync_inodes_one_sb(struct super_block *sb, void *arg)
 {
 	if (!(sb->s_flags & MS_RDONLY))
-		sync_inodes_sb(sb);
+		sync_inodes_sb(sb, *((unsigned long *)arg));
 }
 
 static void sync_fs_one_sb(struct super_block *sb, void *arg)
@@ -102,9 +104,10 @@ static void fdatawait_one_bdev(struct block_device *bdev, void *arg)
 SYSCALL_DEFINE0(sync)
 {
 	int nowait = 0, wait = 1;
+	unsigned long start = jiffies;
 
 	wakeup_flusher_threads(0, WB_REASON_SYNC);
-	iterate_supers(sync_inodes_one_sb, NULL);
+	iterate_supers(sync_inodes_one_sb, &start);
 	iterate_supers(sync_fs_one_sb, &nowait);
 	iterate_supers(sync_fs_one_sb, &wait);
 	iterate_bdevs(fdatawrite_one_bdev, NULL);
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 15188cc99449..8968f5036fa1 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -918,7 +918,7 @@ xfs_flush_inodes(
 	struct super_block	*sb = mp->m_super;
 
 	if (down_read_trylock(&sb->s_umount)) {
-		sync_inodes_sb(sb);
+		sync_inodes_sb(sb, jiffies);
 		up_read(&sb->s_umount);
 	}
 }
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index 021b8a319b9e..fc0e4320aa6d 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -97,7 +97,7 @@ void writeback_inodes_sb_nr(struct super_block *, unsigned long nr,
 int try_to_writeback_inodes_sb(struct super_block *, enum wb_reason reason);
 int try_to_writeback_inodes_sb_nr(struct super_block *, unsigned long nr,
 				  enum wb_reason reason);
-void sync_inodes_sb(struct super_block *);
+void sync_inodes_sb(struct super_block *sb, unsigned long older_than_this);
 void wakeup_flusher_threads(long nr_pages, enum wb_reason reason);
 void inode_wait_for_writeback(struct inode *inode);
 
diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h
index 464ea82e10db..c7bbbe794e65 100644
--- a/include/trace/events/writeback.h
+++ b/include/trace/events/writeback.h
@@ -287,11 +287,11 @@ TRACE_EVENT(writeback_queue_io,
 		__field(int,		reason)
 	),
 	TP_fast_assign(
-		unsigned long *older_than_this = work->older_than_this;
+		unsigned long older_than_this = work->older_than_this;
 		strncpy(__entry->name, dev_name(wb->bdi->dev), 32);
-		__entry->older	= older_than_this ?  *older_than_this : 0;
+		__entry->older	= older_than_this;
 		__entry->age	= older_than_this ?
-				  (jiffies - *older_than_this) * 1000 / HZ : -1;
+				  (jiffies - older_than_this) * 1000 / HZ : -1;
 		__entry->moved	= moved;
 		__entry->reason	= work->reason;
 	),
-- 
cgit 


From b349acc76b7f65400b85abd09a5379ddd6fa5a97 Mon Sep 17 00:00:00 2001
From: Weijie Yang <weijie.yang@samsung.com>
Date: Tue, 12 Nov 2013 15:07:52 -0800
Subject: mm/zswap: avoid unnecessary page scanning

Add SetPageReclaim() before __swap_writepage() so that page can be moved
to the tail of the inactive list, which can avoid unnecessary page
scanning as this page was reclaimed by swap subsystem before.

Signed-off-by: Weijie Yang <weijie.yang@samsung.com>
Reviewed-by: Bob Liu <bob.liu@oracle.com>
Reviewed-by: Minchan Kim <minchan@kernel.org>
Acked-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/zswap.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mm/zswap.c b/mm/zswap.c
index d93510c6aa2d..001474c1a594 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -556,6 +556,9 @@ static int zswap_writeback_entry(struct zbud_pool *pool, unsigned long handle)
 		SetPageUptodate(page);
 	}
 
+	/* move it to the tail of the inactive list after end_writeback */
+	SetPageReclaim(page);
+
 	/* start writeback */
 	__swap_writepage(page, &wbc, end_swap_bio_write);
 	page_cache_release(page);
-- 
cgit 


From 4e99b02131b280b064d30a5926ef1c4763f3097b Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Tue, 12 Nov 2013 15:07:54 -0800
Subject: mmap: arch_get_unmapped_area(): use proper mmap base for bottom up
 direction

This is more or less the generic variant of commit 41aacc1eea64 ("x86
get_unmapped_area: Access mmap_legacy_base through mm_struct member").

So effectively architectures which use an own arch_pick_mmap_layout()
implementation but call the generic arch_get_unmapped_area() now can
also randomize their mmap_base.

All architectures which have an own arch_pick_mmap_layout() and call the
generic arch_get_unmapped_area() (arm64, s390, tile) currently set
mmap_base to TASK_UNMAPPED_BASE.  This is also true for the generic
arch_pick_mmap_layout() function.  So this change is a no-op currently.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Radu Caragea <sinaelgl@gmail.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/mmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/mmap.c b/mm/mmap.c
index 9d548512ff8a..fa206abb5c9d 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1872,7 +1872,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 
 	info.flags = 0;
 	info.length = len;
-	info.low_limit = TASK_UNMAPPED_BASE;
+	info.low_limit = mm->mmap_base;
 	info.high_limit = TASK_SIZE;
 	info.align_mask = 0;
 	return vm_unmapped_area(&info);
-- 
cgit 


From 7aba842f08bb9e8485ff40067dc090ada4c7f575 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Tue, 12 Nov 2013 15:07:55 -0800
Subject: s390/mmap: randomize mmap base for bottom up direction

Implement mmap base randomization for the bottom up direction, so ASLR
works for both mmap layouts on s390.  See also commit df54d6fa5427 ("x86
get_unmapped_area(): use proper mmap base for bottom-up direction").

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Radu Caragea <sinaelgl@gmail.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/s390/mm/mmap.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/s390/mm/mmap.c b/arch/s390/mm/mmap.c
index 6bcb045d2bd2..9b436c21195e 100644
--- a/arch/s390/mm/mmap.c
+++ b/arch/s390/mm/mmap.c
@@ -64,6 +64,11 @@ static unsigned long mmap_rnd(void)
 	return (get_random_int() & 0x7ffUL) << PAGE_SHIFT;
 }
 
+static unsigned long mmap_base_legacy(void)
+{
+	return TASK_UNMAPPED_BASE + mmap_rnd();
+}
+
 static inline unsigned long mmap_base(void)
 {
 	unsigned long gap = rlimit(RLIMIT_STACK);
@@ -89,7 +94,7 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	 * bit is set, or if the expected stack growth is unlimited:
 	 */
 	if (mmap_is_legacy()) {
-		mm->mmap_base = TASK_UNMAPPED_BASE;
+		mm->mmap_base = mmap_base_legacy();
 		mm->get_unmapped_area = arch_get_unmapped_area;
 	} else {
 		mm->mmap_base = mmap_base();
@@ -164,7 +169,7 @@ void arch_pick_mmap_layout(struct mm_struct *mm)
 	 * bit is set, or if the expected stack growth is unlimited:
 	 */
 	if (mmap_is_legacy()) {
-		mm->mmap_base = TASK_UNMAPPED_BASE;
+		mm->mmap_base = mmap_base_legacy();
 		mm->get_unmapped_area = s390_get_unmapped_area;
 	} else {
 		mm->mmap_base = mmap_base();
-- 
cgit 


From 1402899e43fda490f08d2c47a7558931f8b9c60c Mon Sep 17 00:00:00 2001
From: Tang Chen <tangchen@cn.fujitsu.com>
Date: Tue, 12 Nov 2013 15:07:57 -0800
Subject: mm/memblock.c: factor out of top-down allocation

[Problem]

The current Linux cannot migrate pages used by the kernel because of the
kernel direct mapping.  In Linux kernel space, va = pa + PAGE_OFFSET.
When the pa is changed, we cannot simply update the pagetable and keep the
va unmodified.  So the kernel pages are not migratable.

There are also some other issues will cause the kernel pages not
migratable.  For example, the physical address may be cached somewhere and
will be used.  It is not to update all the caches.

When doing memory hotplug in Linux, we first migrate all the pages in one
memory device somewhere else, and then remove the device.  But if pages
are used by the kernel, they are not migratable.  As a result, memory used
by the kernel cannot be hot-removed.

Modifying the kernel direct mapping mechanism is too difficult to do.  And
it may cause the kernel performance down and unstable.  So we use the
following way to do memory hotplug.

[What we are doing]

In Linux, memory in one numa node is divided into several zones.  One of
the zones is ZONE_MOVABLE, which the kernel won't use.

In order to implement memory hotplug in Linux, we are going to arrange all
hotpluggable memory in ZONE_MOVABLE so that the kernel won't use these
memory.  To do this, we need ACPI's help.

In ACPI, SRAT(System Resource Affinity Table) contains NUMA info.  The
memory affinities in SRAT record every memory range in the system, and
also, flags specifying if the memory range is hotpluggable.  (Please refer
to ACPI spec 5.0 5.2.16)

With the help of SRAT, we have to do the following two things to achieve our
goal:

1. When doing memory hot-add, allow the users arranging hotpluggable as
   ZONE_MOVABLE.
   (This has been done by the MOVABLE_NODE functionality in Linux.)

2. when the system is booting, prevent bootmem allocator from allocating
   hotpluggable memory for the kernel before the memory initialization
   finishes.

The problem 2 is the key problem we are going to solve. But before solving it,
we need some preparation. Please see below.

[Preparation]

Bootloader has to load the kernel image into memory.  And this memory must
be unhotpluggable.  We cannot prevent this anyway.  So in a memory hotplug
system, we can assume any node the kernel resides in is not hotpluggable.

Before SRAT is parsed, we don't know which memory ranges are hotpluggable.
 But memblock has already started to work.  In the current kernel,
memblock allocates the following memory before SRAT is parsed:

setup_arch()
 |->memblock_x86_fill()            /* memblock is ready */
 |......
 |->early_reserve_e820_mpc_new()   /* allocate memory under 1MB */
 |->reserve_real_mode()            /* allocate memory under 1MB */
 |->init_mem_mapping()             /* allocate page tables, about 2MB to map 1GB memory */
 |->dma_contiguous_reserve()       /* specified by user, should be low */
 |->setup_log_buf()                /* specified by user, several mega bytes */
 |->relocate_initrd()              /* could be large, but will be freed after boot, should reorder */
 |->acpi_initrd_override()         /* several mega bytes */
 |->reserve_crashkernel()          /* could be large, should reorder */
 |......
 |->initmem_init()                 /* Parse SRAT */

According to Tejun's advice, before SRAT is parsed, we should try our best
to allocate memory near the kernel image.  Since the whole node the kernel
resides in won't be hotpluggable, and for a modern server, a node may have
at least 16GB memory, allocating several mega bytes memory around the
kernel image won't cross to hotpluggable memory.

[About this patchset]

So this patchset is the preparation for the problem 2 that we want to
solve.  It does the following:

1. Make memblock be able to allocate memory bottom up.
   1) Keep all the memblock APIs' prototype unmodified.
   2) When the direction is bottom up, keep the start address greater than the
      end of kernel image.

2. Improve init_mem_mapping() to support allocate page tables in
   bottom up direction.

3. Introduce "movable_node" boot option to enable and disable this
   functionality.

This patch (of 6):

Create a new function __memblock_find_range_top_down to factor out of
top-down allocation from memblock_find_in_range_node.  This is a
preparation because we will introduce a new bottom-up allocation mode in
the following patch.

Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Thomas Renninger <trenn@suse.de>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Taku Izumi <izumi.taku@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/memblock.c | 47 ++++++++++++++++++++++++++++++++++-------------
 1 file changed, 34 insertions(+), 13 deletions(-)

diff --git a/mm/memblock.c b/mm/memblock.c
index 0ac412a0a7ee..accff1087137 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -83,33 +83,25 @@ static long __init_memblock memblock_overlaps_region(struct memblock_type *type,
 }
 
 /**
- * memblock_find_in_range_node - find free area in given range and node
+ * __memblock_find_range_top_down - find free area utility, in top-down
  * @start: start of candidate range
  * @end: end of candidate range, can be %MEMBLOCK_ALLOC_{ANYWHERE|ACCESSIBLE}
  * @size: size of free area to find
  * @align: alignment of free area to find
  * @nid: nid of the free area to find, %MAX_NUMNODES for any node
  *
- * Find @size free area aligned to @align in the specified range and node.
+ * Utility called from memblock_find_in_range_node(), find free area top-down.
  *
  * RETURNS:
  * Found address on success, %0 on failure.
  */
-phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t start,
-					phys_addr_t end, phys_addr_t size,
-					phys_addr_t align, int nid)
+static phys_addr_t __init_memblock
+__memblock_find_range_top_down(phys_addr_t start, phys_addr_t end,
+			       phys_addr_t size, phys_addr_t align, int nid)
 {
 	phys_addr_t this_start, this_end, cand;
 	u64 i;
 
-	/* pump up @end */
-	if (end == MEMBLOCK_ALLOC_ACCESSIBLE)
-		end = memblock.current_limit;
-
-	/* avoid allocating the first page */
-	start = max_t(phys_addr_t, start, PAGE_SIZE);
-	end = max(start, end);
-
 	for_each_free_mem_range_reverse(i, nid, &this_start, &this_end, NULL) {
 		this_start = clamp(this_start, start, end);
 		this_end = clamp(this_end, start, end);
@@ -121,9 +113,38 @@ phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t start,
 		if (cand >= this_start)
 			return cand;
 	}
+
 	return 0;
 }
 
+/**
+ * memblock_find_in_range_node - find free area in given range and node
+ * @start: start of candidate range
+ * @end: end of candidate range, can be %MEMBLOCK_ALLOC_{ANYWHERE|ACCESSIBLE}
+ * @size: size of free area to find
+ * @align: alignment of free area to find
+ * @nid: nid of the free area to find, %MAX_NUMNODES for any node
+ *
+ * Find @size free area aligned to @align in the specified range and node.
+ *
+ * RETURNS:
+ * Found address on success, %0 on failure.
+ */
+phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t start,
+					phys_addr_t end, phys_addr_t size,
+					phys_addr_t align, int nid)
+{
+	/* pump up @end */
+	if (end == MEMBLOCK_ALLOC_ACCESSIBLE)
+		end = memblock.current_limit;
+
+	/* avoid allocating the first page */
+	start = max_t(phys_addr_t, start, PAGE_SIZE);
+	end = max(start, end);
+
+	return __memblock_find_range_top_down(start, end, size, align, nid);
+}
+
 /**
  * memblock_find_in_range - find free area in given range
  * @start: start of candidate range
-- 
cgit 


From 79442ed189acb8b949662676e750eda173c06f9b Mon Sep 17 00:00:00 2001
From: Tang Chen <tangchen@cn.fujitsu.com>
Date: Tue, 12 Nov 2013 15:07:59 -0800
Subject: mm/memblock.c: introduce bottom-up allocation mode

The Linux kernel cannot migrate pages used by the kernel.  As a result,
kernel pages cannot be hot-removed.  So we cannot allocate hotpluggable
memory for the kernel.

ACPI SRAT (System Resource Affinity Table) contains the memory hotplug
info.  But before SRAT is parsed, memblock has already started to allocate
memory for the kernel.  So we need to prevent memblock from doing this.

In a memory hotplug system, any numa node the kernel resides in should be
unhotpluggable.  And for a modern server, each node could have at least
16GB memory.  So memory around the kernel image is highly likely
unhotpluggable.

So the basic idea is: Allocate memory from the end of the kernel image and
to the higher memory.  Since memory allocation before SRAT is parsed won't
be too much, it could highly likely be in the same node with kernel image.

The current memblock can only allocate memory top-down.  So this patch
introduces a new bottom-up allocation mode to allocate memory bottom-up.
And later when we use this allocation direction to allocate memory, we
will limit the start address above the kernel.

Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Thomas Renninger <trenn@suse.de>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Taku Izumi <izumi.taku@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/memblock.h | 24 ++++++++++++++
 include/linux/mm.h       |  4 +++
 mm/memblock.c            | 83 ++++++++++++++++++++++++++++++++++++++++++++++--
 3 files changed, 108 insertions(+), 3 deletions(-)

diff --git a/include/linux/memblock.h b/include/linux/memblock.h
index 31e95acddb4d..77c60e52939d 100644
--- a/include/linux/memblock.h
+++ b/include/linux/memblock.h
@@ -35,6 +35,7 @@ struct memblock_type {
 };
 
 struct memblock {
+	bool bottom_up;  /* is bottom up direction? */
 	phys_addr_t current_limit;
 	struct memblock_type memory;
 	struct memblock_type reserved;
@@ -148,6 +149,29 @@ phys_addr_t memblock_alloc_try_nid(phys_addr_t size, phys_addr_t align, int nid)
 
 phys_addr_t memblock_alloc(phys_addr_t size, phys_addr_t align);
 
+#ifdef CONFIG_MOVABLE_NODE
+/*
+ * Set the allocation direction to bottom-up or top-down.
+ */
+static inline void memblock_set_bottom_up(bool enable)
+{
+	memblock.bottom_up = enable;
+}
+
+/*
+ * Check if the allocation direction is bottom-up or not.
+ * if this is true, that said, memblock will allocate memory
+ * in bottom-up direction.
+ */
+static inline bool memblock_bottom_up(void)
+{
+	return memblock.bottom_up;
+}
+#else
+static inline void memblock_set_bottom_up(bool enable) {}
+static inline bool memblock_bottom_up(void) { return false; }
+#endif
+
 /* Flags for memblock_alloc_base() amd __memblock_alloc_base() */
 #define MEMBLOCK_ALLOC_ANYWHERE	(~(phys_addr_t)0)
 #define MEMBLOCK_ALLOC_ACCESSIBLE	0
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 8aa4006b9636..42a35d94b82c 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -50,6 +50,10 @@ extern int sysctl_legacy_va_layout;
 #include <asm/pgtable.h>
 #include <asm/processor.h>
 
+#ifndef __pa_symbol
+#define __pa_symbol(x)  __pa(RELOC_HIDE((unsigned long)(x), 0))
+#endif
+
 extern unsigned long sysctl_user_reserve_kbytes;
 extern unsigned long sysctl_admin_reserve_kbytes;
 
diff --git a/mm/memblock.c b/mm/memblock.c
index accff1087137..53e477bb5558 100644
--- a/mm/memblock.c
+++ b/mm/memblock.c
@@ -20,6 +20,8 @@
 #include <linux/seq_file.h>
 #include <linux/memblock.h>
 
+#include <asm-generic/sections.h>
+
 static struct memblock_region memblock_memory_init_regions[INIT_MEMBLOCK_REGIONS] __initdata_memblock;
 static struct memblock_region memblock_reserved_init_regions[INIT_MEMBLOCK_REGIONS] __initdata_memblock;
 
@@ -32,6 +34,7 @@ struct memblock memblock __initdata_memblock = {
 	.reserved.cnt		= 1,	/* empty dummy entry */
 	.reserved.max		= INIT_MEMBLOCK_REGIONS,
 
+	.bottom_up		= false,
 	.current_limit		= MEMBLOCK_ALLOC_ANYWHERE,
 };
 
@@ -82,6 +85,38 @@ static long __init_memblock memblock_overlaps_region(struct memblock_type *type,
 	return (i < type->cnt) ? i : -1;
 }
 
+/*
+ * __memblock_find_range_bottom_up - find free area utility in bottom-up
+ * @start: start of candidate range
+ * @end: end of candidate range, can be %MEMBLOCK_ALLOC_{ANYWHERE|ACCESSIBLE}
+ * @size: size of free area to find
+ * @align: alignment of free area to find
+ * @nid: nid of the free area to find, %MAX_NUMNODES for any node
+ *
+ * Utility called from memblock_find_in_range_node(), find free area bottom-up.
+ *
+ * RETURNS:
+ * Found address on success, 0 on failure.
+ */
+static phys_addr_t __init_memblock
+__memblock_find_range_bottom_up(phys_addr_t start, phys_addr_t end,
+				phys_addr_t size, phys_addr_t align, int nid)
+{
+	phys_addr_t this_start, this_end, cand;
+	u64 i;
+
+	for_each_free_mem_range(i, nid, &this_start, &this_end, NULL) {
+		this_start = clamp(this_start, start, end);
+		this_end = clamp(this_end, start, end);
+
+		cand = round_up(this_start, align);
+		if (cand < this_end && this_end - cand >= size)
+			return cand;
+	}
+
+	return 0;
+}
+
 /**
  * __memblock_find_range_top_down - find free area utility, in top-down
  * @start: start of candidate range
@@ -93,7 +128,7 @@ static long __init_memblock memblock_overlaps_region(struct memblock_type *type,
  * Utility called from memblock_find_in_range_node(), find free area top-down.
  *
  * RETURNS:
- * Found address on success, %0 on failure.
+ * Found address on success, 0 on failure.
  */
 static phys_addr_t __init_memblock
 __memblock_find_range_top_down(phys_addr_t start, phys_addr_t end,
@@ -127,13 +162,24 @@ __memblock_find_range_top_down(phys_addr_t start, phys_addr_t end,
  *
  * Find @size free area aligned to @align in the specified range and node.
  *
+ * When allocation direction is bottom-up, the @start should be greater
+ * than the end of the kernel image. Otherwise, it will be trimmed. The
+ * reason is that we want the bottom-up allocation just near the kernel
+ * image so it is highly likely that the allocated memory and the kernel
+ * will reside in the same node.
+ *
+ * If bottom-up allocation failed, will try to allocate memory top-down.
+ *
  * RETURNS:
- * Found address on success, %0 on failure.
+ * Found address on success, 0 on failure.
  */
 phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t start,
 					phys_addr_t end, phys_addr_t size,
 					phys_addr_t align, int nid)
 {
+	int ret;
+	phys_addr_t kernel_end;
+
 	/* pump up @end */
 	if (end == MEMBLOCK_ALLOC_ACCESSIBLE)
 		end = memblock.current_limit;
@@ -141,6 +187,37 @@ phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t start,
 	/* avoid allocating the first page */
 	start = max_t(phys_addr_t, start, PAGE_SIZE);
 	end = max(start, end);
+	kernel_end = __pa_symbol(_end);
+
+	/*
+	 * try bottom-up allocation only when bottom-up mode
+	 * is set and @end is above the kernel image.
+	 */
+	if (memblock_bottom_up() && end > kernel_end) {
+		phys_addr_t bottom_up_start;
+
+		/* make sure we will allocate above the kernel */
+		bottom_up_start = max(start, kernel_end);
+
+		/* ok, try bottom-up allocation first */
+		ret = __memblock_find_range_bottom_up(bottom_up_start, end,
+						      size, align, nid);
+		if (ret)
+			return ret;
+
+		/*
+		 * we always limit bottom-up allocation above the kernel,
+		 * but top-down allocation doesn't have the limit, so
+		 * retrying top-down allocation may succeed when bottom-up
+		 * allocation failed.
+		 *
+		 * bottom-up allocation is expected to be fail very rarely,
+		 * so we use WARN_ONCE() here to see the stack trace if
+		 * fail happens.
+		 */
+		WARN_ONCE(1, "memblock: bottom-up allocation failed, "
+			     "memory hotunplug may be affected\n");
+	}
 
 	return __memblock_find_range_top_down(start, end, size, align, nid);
 }
@@ -155,7 +232,7 @@ phys_addr_t __init_memblock memblock_find_in_range_node(phys_addr_t start,
  * Find @size free area aligned to @align in the specified range.
  *
  * RETURNS:
- * Found address on success, %0 on failure.
+ * Found address on success, 0 on failure.
  */
 phys_addr_t __init_memblock memblock_find_in_range(phys_addr_t start,
 					phys_addr_t end, phys_addr_t size,
-- 
cgit 


From 0167d7d8b0beb4cf12076b47e4dc73897ae5acb0 Mon Sep 17 00:00:00 2001
From: Tang Chen <tangchen@cn.fujitsu.com>
Date: Tue, 12 Nov 2013 15:08:02 -0800
Subject: x86/mm: factor out of top-down direct mapping setup

Create a new function memory_map_top_down to factor out of the top-down
direct memory mapping pagetable setup.  This is also a preparation for the
following patch, which will introduce the bottom-up memory mapping.  That
said, we will put the two ways of pagetable setup into separate functions,
and choose to use which way in init_mem_mapping, which makes the code more
clear.

Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Thomas Renninger <trenn@suse.de>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Taku Izumi <izumi.taku@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/x86/mm/init.c | 59 ++++++++++++++++++++++++++++++++++++------------------
 1 file changed, 39 insertions(+), 20 deletions(-)

diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index ce32017c5e38..742d6d4ad9eb 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -418,27 +418,27 @@ static unsigned long __init get_new_step_size(unsigned long step_size)
 	return step_size << 5;
 }
 
-void __init init_mem_mapping(void)
+/**
+ * memory_map_top_down - Map [map_start, map_end) top down
+ * @map_start: start address of the target memory range
+ * @map_end: end address of the target memory range
+ *
+ * This function will setup direct mapping for memory range
+ * [map_start, map_end) in top-down. That said, the page tables
+ * will be allocated at the end of the memory, and we map the
+ * memory in top-down.
+ */
+static void __init memory_map_top_down(unsigned long map_start,
+				       unsigned long map_end)
 {
-	unsigned long end, real_end, start, last_start;
+	unsigned long real_end, start, last_start;
 	unsigned long step_size;
 	unsigned long addr;
 	unsigned long mapped_ram_size = 0;
 	unsigned long new_mapped_ram_size;
 
-	probe_page_size_mask();
-
-#ifdef CONFIG_X86_64
-	end = max_pfn << PAGE_SHIFT;
-#else
-	end = max_low_pfn << PAGE_SHIFT;
-#endif
-
-	/* the ISA range is always mapped regardless of memory holes */
-	init_memory_mapping(0, ISA_END_ADDRESS);
-
 	/* xen has big range in reserved near end of ram, skip it at first.*/
-	addr = memblock_find_in_range(ISA_END_ADDRESS, end, PMD_SIZE, PMD_SIZE);
+	addr = memblock_find_in_range(map_start, map_end, PMD_SIZE, PMD_SIZE);
 	real_end = addr + PMD_SIZE;
 
 	/* step_size need to be small so pgt_buf from BRK could cover it */
@@ -453,13 +453,13 @@ void __init init_mem_mapping(void)
 	 * end of RAM in [min_pfn_mapped, max_pfn_mapped) used as new pages
 	 * for page table.
 	 */
-	while (last_start > ISA_END_ADDRESS) {
+	while (last_start > map_start) {
 		if (last_start > step_size) {
 			start = round_down(last_start - 1, step_size);
-			if (start < ISA_END_ADDRESS)
-				start = ISA_END_ADDRESS;
+			if (start < map_start)
+				start = map_start;
 		} else
-			start = ISA_END_ADDRESS;
+			start = map_start;
 		new_mapped_ram_size = init_range_memory_mapping(start,
 							last_start);
 		last_start = start;
@@ -470,8 +470,27 @@ void __init init_mem_mapping(void)
 		mapped_ram_size += new_mapped_ram_size;
 	}
 
-	if (real_end < end)
-		init_range_memory_mapping(real_end, end);
+	if (real_end < map_end)
+		init_range_memory_mapping(real_end, map_end);
+}
+
+void __init init_mem_mapping(void)
+{
+	unsigned long end;
+
+	probe_page_size_mask();
+
+#ifdef CONFIG_X86_64
+	end = max_pfn << PAGE_SHIFT;
+#else
+	end = max_low_pfn << PAGE_SHIFT;
+#endif
+
+	/* the ISA range is always mapped regardless of memory holes */
+	init_memory_mapping(0, ISA_END_ADDRESS);
+
+	/* setup direct mapping for range [ISA_END_ADDRESS, end) in top-down*/
+	memory_map_top_down(ISA_END_ADDRESS, end);
 
 #ifdef CONFIG_X86_64
 	if (max_pfn > max_low_pfn) {
-- 
cgit 


From b959ed6c73845aebf51afb8f76bb74b9388344d2 Mon Sep 17 00:00:00 2001
From: Tang Chen <tangchen@cn.fujitsu.com>
Date: Tue, 12 Nov 2013 15:08:05 -0800
Subject: x86/mem-hotplug: support initialize page tables in bottom-up

The Linux kernel cannot migrate pages used by the kernel.  As a result,
kernel pages cannot be hot-removed.  So we cannot allocate hotpluggable
memory for the kernel.

In a memory hotplug system, any numa node the kernel resides in should be
unhotpluggable.  And for a modern server, each node could have at least
16GB memory.  So memory around the kernel image is highly likely
unhotpluggable.

ACPI SRAT (System Resource Affinity Table) contains the memory hotplug
info.  But before SRAT is parsed, memblock has already started to allocate
memory for the kernel.  So we need to prevent memblock from doing this.

So direct memory mapping page tables setup is the case.
init_mem_mapping() is called before SRAT is parsed.  To prevent page
tables being allocated within hotpluggable memory, we will use bottom-up
direction to allocate page tables from the end of kernel image to the
higher memory.

Note:
As for allocating page tables in lower memory, TJ said:

: This is an optional behavior which is triggered by a very specific kernel
: boot param, which I suspect is gonna need to stick around to support
: memory hotplug in the current setup unless we add another layer of address
: translation to support memory hotplug.

As for page tables may occupy too much lower memory if using 4K mapping
(CONFIG_DEBUG_PAGEALLOC and CONFIG_KMEMCHECK both disable using >4k
pages), TJ said:

: But as I said in the same paragraph, parsing SRAT earlier doesn't solve
: the problem in itself either.  Ignoring the option if 4k mapping is
: required and memory consumption would be prohibitive should work, no?
: Something like that would be necessary if we're gonna worry about cases
: like this no matter how we implement it, but, frankly, I'm not sure this
: is something worth worrying about.

Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Thomas Renninger <trenn@suse.de>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Taku Izumi <izumi.taku@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/x86/mm/init.c | 66 ++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 64 insertions(+), 2 deletions(-)

diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 742d6d4ad9eb..91b522072a4d 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -474,6 +474,51 @@ static void __init memory_map_top_down(unsigned long map_start,
 		init_range_memory_mapping(real_end, map_end);
 }
 
+/**
+ * memory_map_bottom_up - Map [map_start, map_end) bottom up
+ * @map_start: start address of the target memory range
+ * @map_end: end address of the target memory range
+ *
+ * This function will setup direct mapping for memory range
+ * [map_start, map_end) in bottom-up. Since we have limited the
+ * bottom-up allocation above the kernel, the page tables will
+ * be allocated just above the kernel and we map the memory
+ * in [map_start, map_end) in bottom-up.
+ */
+static void __init memory_map_bottom_up(unsigned long map_start,
+					unsigned long map_end)
+{
+	unsigned long next, new_mapped_ram_size, start;
+	unsigned long mapped_ram_size = 0;
+	/* step_size need to be small so pgt_buf from BRK could cover it */
+	unsigned long step_size = PMD_SIZE;
+
+	start = map_start;
+	min_pfn_mapped = start >> PAGE_SHIFT;
+
+	/*
+	 * We start from the bottom (@map_start) and go to the top (@map_end).
+	 * The memblock_find_in_range() gets us a block of RAM from the
+	 * end of RAM in [min_pfn_mapped, max_pfn_mapped) used as new pages
+	 * for page table.
+	 */
+	while (start < map_end) {
+		if (map_end - start > step_size) {
+			next = round_up(start + 1, step_size);
+			if (next > map_end)
+				next = map_end;
+		} else
+			next = map_end;
+
+		new_mapped_ram_size = init_range_memory_mapping(start, next);
+		start = next;
+
+		if (new_mapped_ram_size > mapped_ram_size)
+			step_size = get_new_step_size(step_size);
+		mapped_ram_size += new_mapped_ram_size;
+	}
+}
+
 void __init init_mem_mapping(void)
 {
 	unsigned long end;
@@ -489,8 +534,25 @@ void __init init_mem_mapping(void)
 	/* the ISA range is always mapped regardless of memory holes */
 	init_memory_mapping(0, ISA_END_ADDRESS);
 
-	/* setup direct mapping for range [ISA_END_ADDRESS, end) in top-down*/
-	memory_map_top_down(ISA_END_ADDRESS, end);
+	/*
+	 * If the allocation is in bottom-up direction, we setup direct mapping
+	 * in bottom-up, otherwise we setup direct mapping in top-down.
+	 */
+	if (memblock_bottom_up()) {
+		unsigned long kernel_end = __pa_symbol(_end);
+
+		/*
+		 * we need two separate calls here. This is because we want to
+		 * allocate page tables above the kernel. So we first map
+		 * [kernel_end, end) to make memory above the kernel be mapped
+		 * as soon as possible. And then use page tables allocated above
+		 * the kernel to map [ISA_END_ADDRESS, kernel_end).
+		 */
+		memory_map_bottom_up(kernel_end, end);
+		memory_map_bottom_up(ISA_END_ADDRESS, kernel_end);
+	} else {
+		memory_map_top_down(ISA_END_ADDRESS, end);
+	}
 
 #ifdef CONFIG_X86_64
 	if (max_pfn > max_low_pfn) {
-- 
cgit 


From fa591c4ae76ecbd4d26d7e8f65429d6d454554a6 Mon Sep 17 00:00:00 2001
From: Tang Chen <tangchen@cn.fujitsu.com>
Date: Tue, 12 Nov 2013 15:08:07 -0800
Subject: x86, acpi, crash, kdump: do reserve_crashkernel() after SRAT is
 parsed.

Memory reserved for crashkernel could be large.  So we should not allocate
this memory bottom up from the end of kernel image.

When SRAT is parsed, we will be able to know which memory is hotpluggable,
and we can avoid allocating this memory for the kernel.  So reorder
reserve_crashkernel() after SRAT is parsed.

Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Thomas Renninger <trenn@suse.de>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Taku Izumi <izumi.taku@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/x86/kernel/setup.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 918d489fa53d..cb233bc9dee3 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -1121,8 +1121,6 @@ void __init setup_arch(char **cmdline_p)
 	acpi_initrd_override((void *)initrd_start, initrd_end - initrd_start);
 #endif
 
-	reserve_crashkernel();
-
 	vsmp_init();
 
 	io_delay_init();
@@ -1135,6 +1133,13 @@ void __init setup_arch(char **cmdline_p)
 	early_acpi_boot_init();
 
 	initmem_init();
+
+	/*
+	 * Reserve memory for crash kernel after SRAT is parsed so that it
+	 * won't consume hotpluggable memory.
+	 */
+	reserve_crashkernel();
+
 	memblock_find_dma_reserve();
 
 #ifdef CONFIG_KVM_GUEST
-- 
cgit 


From c5320926e370b4cfb8f10c2169e26f960079cf67 Mon Sep 17 00:00:00 2001
From: Tang Chen <tangchen@cn.fujitsu.com>
Date: Tue, 12 Nov 2013 15:08:10 -0800
Subject: mem-hotplug: introduce movable_node boot option

The hot-Pluggable field in SRAT specifies which memory is hotpluggable.
As we mentioned before, if hotpluggable memory is used by the kernel, it
cannot be hot-removed.  So memory hotplug users may want to set all
hotpluggable memory in ZONE_MOVABLE so that the kernel won't use it.

Memory hotplug users may also set a node as movable node, which has
ZONE_MOVABLE only, so that the whole node can be hot-removed.

But the kernel cannot use memory in ZONE_MOVABLE.  By doing this, the
kernel cannot use memory in movable nodes.  This will cause NUMA
performance down.  And other users may be unhappy.

So we need a way to allow users to enable and disable this functionality.
In this patch, we introduce movable_node boot option to allow users to
choose to not to consume hotpluggable memory at early boot time and later
we can set it as ZONE_MOVABLE.

To achieve this, the movable_node boot option will control the memblock
allocation direction.  That said, after memblock is ready, before SRAT is
parsed, we should allocate memory near the kernel image as we explained in
the previous patches.  So if movable_node boot option is set, the kernel
does the following:

1. After memblock is ready, make memblock allocate memory bottom up.
2. After SRAT is parsed, make memblock behave as default, allocate memory
   top down.

Users can specify "movable_node" in kernel commandline to enable this
functionality.  For those who don't use memory hotplug or who don't want
to lose their NUMA performance, just don't specify anything.  The kernel
will work as before.

Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Suggested-by: Kamezawa Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Suggested-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Thomas Renninger <trenn@suse.de>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Jiang Liu <jiang.liu@huawei.com>
Cc: Wen Congyang <wency@cn.fujitsu.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Cc: Taku Izumi <izumi.taku@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Nazarewicz <mina86@mina86.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Documentation/kernel-parameters.txt |  3 +++
 arch/x86/mm/numa.c                  | 11 +++++++++++
 mm/Kconfig                          | 17 ++++++++++++-----
 mm/memory_hotplug.c                 | 31 +++++++++++++++++++++++++++++++
 4 files changed, 57 insertions(+), 5 deletions(-)

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index fd3ecedc084d..882a40d405c8 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1775,6 +1775,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			that the amount of memory usable for all allocations
 			is not too small.
 
+	movable_node	[KNL,X86] Boot-time switch to enable the effects
+			of CONFIG_MOVABLE_NODE=y. See mm/Kconfig for details.
+
 	MTD_Partition=	[MTD]
 			Format: <name>,<region-number>,<size>,<offset>
 
diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c
index 8bf93bae1f13..24aec58d6afd 100644
--- a/arch/x86/mm/numa.c
+++ b/arch/x86/mm/numa.c
@@ -567,6 +567,17 @@ static int __init numa_init(int (*init_func)(void))
 	ret = init_func();
 	if (ret < 0)
 		return ret;
+
+	/*
+	 * We reset memblock back to the top-down direction
+	 * here because if we configured ACPI_NUMA, we have
+	 * parsed SRAT in init_func(). It is ok to have the
+	 * reset here even if we did't configure ACPI_NUMA
+	 * or acpi numa init fails and fallbacks to dummy
+	 * numa init.
+	 */
+	memblock_set_bottom_up(false);
+
 	ret = numa_cleanup_meminfo(&numa_meminfo);
 	if (ret < 0)
 		return ret;
diff --git a/mm/Kconfig b/mm/Kconfig
index 394838f489eb..3f4ffda152bb 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -153,11 +153,18 @@ config MOVABLE_NODE
 	help
 	  Allow a node to have only movable memory.  Pages used by the kernel,
 	  such as direct mapping pages cannot be migrated.  So the corresponding
-	  memory device cannot be hotplugged.  This option allows users to
-	  online all the memory of a node as movable memory so that the whole
-	  node can be hotplugged.  Users who don't use the memory hotplug
-	  feature are fine with this option on since they don't online memory
-	  as movable.
+	  memory device cannot be hotplugged.  This option allows the following
+	  two things:
+	  - When the system is booting, node full of hotpluggable memory can
+	  be arranged to have only movable memory so that the whole node can
+	  be hot-removed. (need movable_node boot option specified).
+	  - After the system is up, the option allows users to online all the
+	  memory of a node as movable memory so that the whole node can be
+	  hot-removed.
+
+	  Users who don't use the memory hotplug feature are fine with this
+	  option on since they don't specify movable_node boot option or they
+	  don't online memory as movable.
 
 	  Say Y here if you want to hotplug a whole node.
 	  Say N here if you want kernel to use memory on all nodes evenly.
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index 1b6fe8ca71e6..489f235502db 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -31,6 +31,7 @@
 #include <linux/firmware-map.h>
 #include <linux/stop_machine.h>
 #include <linux/hugetlb.h>
+#include <linux/memblock.h>
 
 #include <asm/tlbflush.h>
 
@@ -1422,6 +1423,36 @@ static bool can_offline_normal(struct zone *zone, unsigned long nr_pages)
 }
 #endif /* CONFIG_MOVABLE_NODE */
 
+static int __init cmdline_parse_movable_node(char *p)
+{
+#ifdef CONFIG_MOVABLE_NODE
+	/*
+	 * Memory used by the kernel cannot be hot-removed because Linux
+	 * cannot migrate the kernel pages. When memory hotplug is
+	 * enabled, we should prevent memblock from allocating memory
+	 * for the kernel.
+	 *
+	 * ACPI SRAT records all hotpluggable memory ranges. But before
+	 * SRAT is parsed, we don't know about it.
+	 *
+	 * The kernel image is loaded into memory at very early time. We
+	 * cannot prevent this anyway. So on NUMA system, we set any
+	 * node the kernel resides in as un-hotpluggable.
+	 *
+	 * Since on modern servers, one node could have double-digit
+	 * gigabytes memory, we can assume the memory around the kernel
+	 * image is also un-hotpluggable. So before SRAT is parsed, just
+	 * allocate memory near the kernel image to try the best to keep
+	 * the kernel away from hotpluggable memory.
+	 */
+	memblock_set_bottom_up(true);
+#else
+	pr_warn("movable_node option not supported\n");
+#endif
+	return 0;
+}
+early_param("movable_node", cmdline_parse_movable_node);
+
 /* check which state of node_states will be changed when offline memory */
 static void node_states_check_changes_offline(unsigned long nr_pages,
 		struct zone *zone, struct memory_notify *arg)
-- 
cgit 


From d7e0b37a87c39f5c02dd7b5d55c7a3ec2f65b943 Mon Sep 17 00:00:00 2001
From: Toshi Kani <toshi.kani@hp.com>
Date: Tue, 12 Nov 2013 15:08:12 -0800
Subject: mm: set N_CPU to node_states during boot

After a system booted, N_CPU is not set to any node as has_cpu shows an
empty line.

  # cat /sys/devices/system/node/has_cpu
  (show-empty-line)

setup_vmstat() registers its CPU notifier callback,
vmstat_cpuup_callback(), which marks N_CPU to a node when a CPU is put
into online.  However, setup_vmstat() is called after all CPUs are
launched in the boot sequence.

Changed setup_vmstat() to mark N_CPU to the nodes with online CPUs at
boot, which is consistent with other operations in
vmstat_cpuup_callback(), i.e.  start_cpu_timer() and
refresh_zone_stat_thresholds().

Also added get_online_cpus() to protect the for_each_online_cpu() loop.

Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Acked-by: Christoph Lameter <cl@linux.com>
Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Tested-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/vmstat.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/mm/vmstat.c b/mm/vmstat.c
index 9bb314577911..0a1f7de972b3 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1276,8 +1276,12 @@ static int __init setup_vmstat(void)
 
 	register_cpu_notifier(&vmstat_notifier);
 
-	for_each_online_cpu(cpu)
+	get_online_cpus();
+	for_each_online_cpu(cpu) {
 		start_cpu_timer(cpu);
+		node_set_state(cpu_to_node(cpu), N_CPU);
+	}
+	put_online_cpus();
 #endif
 #ifdef CONFIG_PROC_FS
 	proc_create("buddyinfo", S_IRUGO, NULL, &fragmentation_file_operations);
-- 
cgit 


From 807a1bd2b2a38845fd422b93328e7d69f13eb13a Mon Sep 17 00:00:00 2001
From: Toshi Kani <toshi.kani@hp.com>
Date: Tue, 12 Nov 2013 15:08:13 -0800
Subject: mm: clear N_CPU from node_states at CPU offline

vmstat_cpuup_callback() is a CPU notifier callback, which marks N_CPU to a
node at CPU online event.  However, it does not update this N_CPU info at
CPU offline event.

Changed vmstat_cpuup_callback() to clear N_CPU when the last CPU in the
node is put into offline, i.e.  the node no longer has any online CPU.

Signed-off-by: Toshi Kani <toshi.kani@hp.com>
Acked-by: Christoph Lameter <cl@linux.com>
Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Tested-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/vmstat.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/mm/vmstat.c b/mm/vmstat.c
index 0a1f7de972b3..b6d17edf8cf3 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1229,6 +1229,20 @@ static void start_cpu_timer(int cpu)
 	schedule_delayed_work_on(cpu, work, __round_jiffies_relative(HZ, cpu));
 }
 
+static void vmstat_cpu_dead(int node)
+{
+	int cpu;
+
+	get_online_cpus();
+	for_each_online_cpu(cpu)
+		if (cpu_to_node(cpu) == node)
+			goto end;
+
+	node_clear_state(node, N_CPU);
+end:
+	put_online_cpus();
+}
+
 /*
  * Use the cpu notifier to insure that the thresholds are recalculated
  * when necessary.
@@ -1258,6 +1272,7 @@ static int vmstat_cpuup_callback(struct notifier_block *nfb,
 	case CPU_DEAD:
 	case CPU_DEAD_FROZEN:
 		refresh_zone_stat_thresholds();
+		vmstat_cpu_dead(cpu_to_node(cpu));
 		break;
 	default:
 		break;
-- 
cgit 


From 4a099fb4bdb9982759ce2625f50636a6fbd173bc Mon Sep 17 00:00:00 2001
From: Daeseok Youn <daeseok.youn@gmail.com>
Date: Tue, 12 Nov 2013 15:08:14 -0800
Subject: mm/bootmem.c: remove unused local `map'

Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/bootmem.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mm/bootmem.c b/mm/bootmem.c
index 95b528cd4de7..90bd3507b413 100644
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -172,11 +172,12 @@ void __init free_bootmem_late(unsigned long physaddr, unsigned long size)
 static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata)
 {
 	struct page *page;
-	unsigned long start, end, pages, count = 0;
+	unsigned long *map, start, end, pages, count = 0;
 
 	if (!bdata->node_bootmem_map)
 		return 0;
 
+	map = bdata->node_bootmem_map;
 	start = bdata->node_min_pfn;
 	end = bdata->node_low_pfn;
 
@@ -184,10 +185,9 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata)
 		bdata - bootmem_node_data, start, end);
 
 	while (start < end) {
-		unsigned long *map, idx, vec;
+		unsigned long idx, vec;
 		unsigned shift;
 
-		map = bdata->node_bootmem_map;
 		idx = start - bdata->node_min_pfn;
 		shift = idx & (BITS_PER_LONG - 1);
 		/*
-- 
cgit 


From c78e93630d15b5f5774213aad9bdc9f52473a89b Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Tue, 12 Nov 2013 15:08:15 -0800
Subject: mm: do not walk all of system memory during show_mem

It has been reported on very large machines that show_mem is taking almost
5 minutes to display information.  This is a serious problem if there is
an OOM storm.  The bulk of the cost is in show_mem doing a very expensive
PFN walk to give us the following information

  Total RAM:       Also available as totalram_pages
  Highmem pages:   Also available as totalhigh_pages
  Reserved pages:  Can be inferred from the zone structure
  Shared pages:    PFN walk required
  Unshared pages:  PFN walk required
  Quick pages:     Per-cpu walk required

Only the shared/unshared pages requires a full PFN walk but that
information is useless.  It is also inaccurate as page pins of unshared
pages would be accounted for as shared.  Even if the information was
accurate, I'm struggling to think how the shared/unshared information
could be useful for debugging OOM conditions.  Maybe it was useful before
rmap existed when reclaiming shared pages was costly but it is less
relevant today.

The PFN walk could be optimised a bit but why bother as the information is
useless.  This patch deletes the PFN walker and infers the total RAM,
highmem and reserved pages count from struct zone.  It omits the
shared/unshared page usage on the grounds that it is useless.  It also
corrects the reporting of HighMem as HighMem/MovableOnly as ZONE_MOVABLE
has similar problems to HighMem with respect to lowmem/highmem exhaustion.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Cc: David Rientjes <rientjes@google.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 lib/show_mem.c | 39 +++++++++++----------------------------
 1 file changed, 11 insertions(+), 28 deletions(-)

diff --git a/lib/show_mem.c b/lib/show_mem.c
index b7c72311ad0c..5847a4921b8e 100644
--- a/lib/show_mem.c
+++ b/lib/show_mem.c
@@ -12,8 +12,7 @@
 void show_mem(unsigned int filter)
 {
 	pg_data_t *pgdat;
-	unsigned long total = 0, reserved = 0, shared = 0,
-		nonshared = 0, highmem = 0;
+	unsigned long total = 0, reserved = 0, highmem = 0;
 
 	printk("Mem-Info:\n");
 	show_free_areas(filter);
@@ -22,43 +21,27 @@ void show_mem(unsigned int filter)
 		return;
 
 	for_each_online_pgdat(pgdat) {
-		unsigned long i, flags;
+		unsigned long flags;
+		int zoneid;
 
 		pgdat_resize_lock(pgdat, &flags);
-		for (i = 0; i < pgdat->node_spanned_pages; i++) {
-			struct page *page;
-			unsigned long pfn = pgdat->node_start_pfn + i;
-
-			if (unlikely(!(i % MAX_ORDER_NR_PAGES)))
-				touch_nmi_watchdog();
-
-			if (!pfn_valid(pfn))
+		for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) {
+			struct zone *zone = &pgdat->node_zones[zoneid];
+			if (!populated_zone(zone))
 				continue;
 
-			page = pfn_to_page(pfn);
-
-			if (PageHighMem(page))
-				highmem++;
+			total += zone->present_pages;
+			reserved = zone->present_pages - zone->managed_pages;
 
-			if (PageReserved(page))
-				reserved++;
-			else if (page_count(page) == 1)
-				nonshared++;
-			else if (page_count(page) > 1)
-				shared += page_count(page) - 1;
-
-			total++;
+			if (is_highmem_idx(zoneid))
+				highmem += zone->present_pages;
 		}
 		pgdat_resize_unlock(pgdat, &flags);
 	}
 
 	printk("%lu pages RAM\n", total);
-#ifdef CONFIG_HIGHMEM
-	printk("%lu pages HighMem\n", highmem);
-#endif
+	printk("%lu pages HighMem/MovableOnly\n", highmem);
 	printk("%lu pages reserved\n", reserved);
-	printk("%lu pages shared\n", shared);
-	printk("%lu pages non-shared\n", nonshared);
 #ifdef CONFIG_QUICKLIST
 	printk("%lu pages in pagetable cache\n",
 		quicklist_total_size());
-- 
cgit 


From af248a0c67457e5c6d2bcf288f07b4b2ed064f1f Mon Sep 17 00:00:00 2001
From: Damien Ramonda <damien.ramonda@intel.com>
Date: Tue, 12 Nov 2013 15:08:16 -0800
Subject: readahead: fix sequential read cache miss detection

The kernel's readahead algorithm sometimes interprets random read
accesses as sequential and triggers unnecessary data prefecthing from
storage device (impacting random read average latency).

In order to identify sequential cache read misses, the readahead
algorithm intends to check whether offset - previous offset == 1
(trivial sequential reads) or offset - previous offset == 0 (sequential
reads not aligned on page boundary):

  if (offset - (ra->prev_pos >> PAGE_CACHE_SHIFT) <= 1UL)

The current offset is stored in the "offset" variable of type "pgoff_t"
(unsigned long), while previous offset is stored in "ra->prev_pos" of
type "loff_t" (long long).  Therefore, operands of the if statement are
implicitly converted to type long long.  Consequently, when previous
offset > current offset (which happens on random pattern), the if
condition is true and access is wrongly interpeted as sequential.  An
unnecessary data prefetching is triggered, impacting the average random
read latency.

Storing the previous offset value in a "pgoff_t" variable (unsigned
long) fixes the sequential read detection logic.

Signed-off-by: Damien Ramonda <damien.ramonda@intel.com>
Reviewed-by: Fengguang Wu <fengguang.wu@intel.com>
Acked-by: Pierre Tardy <pierre.tardy@intel.com>
Acked-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/readahead.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/mm/readahead.c b/mm/readahead.c
index 50241836fe82..7cdbb44aa90b 100644
--- a/mm/readahead.c
+++ b/mm/readahead.c
@@ -401,6 +401,7 @@ ondemand_readahead(struct address_space *mapping,
 		   unsigned long req_size)
 {
 	unsigned long max = max_sane_readahead(ra->ra_pages);
+	pgoff_t prev_offset;
 
 	/*
 	 * start of file
@@ -452,8 +453,11 @@ ondemand_readahead(struct address_space *mapping,
 
 	/*
 	 * sequential cache miss
+	 * trivial case: (offset - prev_offset) == 1
+	 * unaligned reads: (offset - prev_offset) == 0
 	 */
-	if (offset - (ra->prev_pos >> PAGE_CACHE_SHIFT) <= 1UL)
+	prev_offset = (unsigned long long)ra->prev_pos >> PAGE_CACHE_SHIFT;
+	if (offset - prev_offset <= 1UL)
 		goto initial_readahead;
 
 	/*
-- 
cgit 


From 5d0f3f72efb1c1968ce1f56c58f9e3e6495effa6 Mon Sep 17 00:00:00 2001
From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Date: Tue, 12 Nov 2013 15:08:18 -0800
Subject: mm: fix page_group_by_mobility_disabled breakage

Currently, set_pageblock_migratetype() screws up MIGRATE_CMA and
MIGRATE_ISOLATE if page_group_by_mobility_disabled is true.  It rewrites
the argument to MIGRATE_UNMOVABLE and we lost these attribute.

The problem was introduced by commit 49255c619fbd ("page allocator: move
check for disabled anti-fragmentation out of fastpath").  So a 4 year
old issue may mean that nobody uses page_group_by_mobility_disabled.

But anyway, this patch fixes the problem.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/page_alloc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 770dbb43465f..5a9883614d99 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -234,8 +234,8 @@ int page_group_by_mobility_disabled __read_mostly;
 
 void set_pageblock_migratetype(struct page *page, int migratetype)
 {
-
-	if (unlikely(page_group_by_mobility_disabled))
+	if (unlikely(page_group_by_mobility_disabled &&
+		     migratetype < MIGRATE_PCPTYPES))
 		migratetype = MIGRATE_UNMOVABLE;
 
 	set_pageblock_flags_group(page, (unsigned long)migratetype,
-- 
cgit 


From 52c8f6a5aeb0bdd396849ecaa72d96f8175528f5 Mon Sep 17 00:00:00 2001
From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Date: Tue, 12 Nov 2013 15:08:19 -0800
Subject: mm: get rid of unnecessary overhead of trace_mm_page_alloc_extfrag()

In general, every tracepoint should be zero overhead if it is disabled.
However, trace_mm_page_alloc_extfrag() is one of exception.  It evaluate
"new_type == start_migratetype" even if tracepoint is disabled.

However, the code can be moved into tracepoint's TP_fast_assign() and
TP_fast_assign exist exactly such purpose.  This patch does it.

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/trace/events/kmem.h | 10 ++++------
 mm/page_alloc.c             |  5 ++---
 2 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/include/trace/events/kmem.h b/include/trace/events/kmem.h
index d0c613476620..aece1346ceb7 100644
--- a/include/trace/events/kmem.h
+++ b/include/trace/events/kmem.h
@@ -267,14 +267,12 @@ DEFINE_EVENT_PRINT(mm_page, mm_page_pcpu_drain,
 TRACE_EVENT(mm_page_alloc_extfrag,
 
 	TP_PROTO(struct page *page,
-			int alloc_order, int fallback_order,
-			int alloc_migratetype, int fallback_migratetype,
-			int change_ownership),
+		int alloc_order, int fallback_order,
+		int alloc_migratetype, int fallback_migratetype, int new_migratetype),
 
 	TP_ARGS(page,
 		alloc_order, fallback_order,
-		alloc_migratetype, fallback_migratetype,
-		change_ownership),
+		alloc_migratetype, fallback_migratetype, new_migratetype),
 
 	TP_STRUCT__entry(
 		__field(	struct page *,	page			)
@@ -291,7 +289,7 @@ TRACE_EVENT(mm_page_alloc_extfrag,
 		__entry->fallback_order		= fallback_order;
 		__entry->alloc_migratetype	= alloc_migratetype;
 		__entry->fallback_migratetype	= fallback_migratetype;
-		__entry->change_ownership	= change_ownership;
+		__entry->change_ownership	= (new_migratetype == alloc_migratetype);
 	),
 
 	TP_printk("page=%p pfn=%lu alloc_order=%d fallback_order=%d pageblock_order=%d alloc_migratetype=%d fallback_migratetype=%d fragmenting=%d change_ownership=%d",
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 5a9883614d99..442f1298f9a7 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1103,9 +1103,8 @@ __rmqueue_fallback(struct zone *zone, int order, int start_migratetype)
 			       is_migrate_cma(migratetype)
 			     ? migratetype : start_migratetype);
 
-			trace_mm_page_alloc_extfrag(page, order,
-				current_order, start_migratetype, migratetype,
-				new_type == start_migratetype);
+			trace_mm_page_alloc_extfrag(page, order, current_order,
+				start_migratetype, migratetype, new_type);
 
 			return page;
 		}
-- 
cgit 


From 0cbef29a782162a3896487901eca4550bfa397ef Mon Sep 17 00:00:00 2001
From: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Date: Tue, 12 Nov 2013 15:08:20 -0800
Subject: mm: __rmqueue_fallback() should respect pageblock type

When __rmqueue_fallback() doesn't find a free block with the required size
it splits a larger page and puts the rest of the page onto the free list.

But it has one serious mistake.  When putting back, __rmqueue_fallback()
always use start_migratetype if type is not CMA.  However,
__rmqueue_fallback() is only called when all of the start_migratetype
queue is empty.  That said, __rmqueue_fallback always puts back memory to
the wrong queue except try_to_steal_freepages() changed pageblock type
(i.e.  requested size is smaller than half of page block).  The end result
is that the antifragmentation framework increases fragmenation instead of
decreasing it.

Mel's original anti fragmentation does the right thing.  But commit
47118af076f6 ("mm: mmzone: MIGRATE_CMA migration type added") broke it.

This patch restores sane and old behavior.  It also removes an incorrect
comment which was introduced by commit fef903efcf0c ("mm/page_alloc.c:
restructure free-page stealing code and fix a bug").

Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/page_alloc.c | 15 +++++----------
 1 file changed, 5 insertions(+), 10 deletions(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 442f1298f9a7..cb17e8b800d6 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1027,6 +1027,10 @@ static int try_to_steal_freepages(struct zone *zone, struct page *page,
 {
 	int current_order = page_order(page);
 
+	/*
+	 * When borrowing from MIGRATE_CMA, we need to release the excess
+	 * buddy pages to CMA itself.
+	 */
 	if (is_migrate_cma(fallback_type))
 		return fallback_type;
 
@@ -1091,17 +1095,8 @@ __rmqueue_fallback(struct zone *zone, int order, int start_migratetype)
 			list_del(&page->lru);
 			rmv_page_order(page);
 
-			/*
-			 * Borrow the excess buddy pages as well, irrespective
-			 * of whether we stole freepages, or took ownership of
-			 * the pageblock or not.
-			 *
-			 * Exception: When borrowing from MIGRATE_CMA, release
-			 * the excess buddy pages to CMA itself.
-			 */
 			expand(zone, page, order, current_order, area,
-			       is_migrate_cma(migratetype)
-			     ? migratetype : start_migratetype);
+			       new_type);
 
 			trace_mm_page_alloc_extfrag(page, order, current_order,
 				start_migratetype, migratetype, new_type);
-- 
cgit 


From 2afc745f3e3079ab16c826be4860da2529054dd2 Mon Sep 17 00:00:00 2001
From: Akira Takeuchi <takeuchi.akr@jp.panasonic.com>
Date: Tue, 12 Nov 2013 15:08:21 -0800
Subject: mm: ensure get_unmapped_area() returns higher address than
 mmap_min_addr

This patch fixes the problem that get_unmapped_area() can return illegal
address and result in failing mmap(2) etc.

In case that the address higher than PAGE_SIZE is set to
/proc/sys/vm/mmap_min_addr, the address lower than mmap_min_addr can be
returned by get_unmapped_area(), even if you do not pass any virtual
address hint (i.e.  the second argument).

This is because the current get_unmapped_area() code does not take into
account mmap_min_addr.

This leads to two actual problems as follows:

1. mmap(2) can fail with EPERM on the process without CAP_SYS_RAWIO,
   although any illegal parameter is not passed.

2. The bottom-up search path after the top-down search might not work in
   arch_get_unmapped_area_topdown().

Note: The first and third chunk of my patch, which changes "len" check,
are for more precise check using mmap_min_addr, and not for solving the
above problem.

[How to reproduce]

	--- test.c -------------------------------------------------
	#include <stdio.h>
	#include <unistd.h>
	#include <sys/mman.h>
	#include <sys/errno.h>

	int main(int argc, char *argv[])
	{
		void *ret = NULL, *last_map;
		size_t pagesize = sysconf(_SC_PAGESIZE);

		do {
			last_map = ret;
			ret = mmap(0, pagesize, PROT_NONE,
				MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
	//		printf("ret=%p\n", ret);
		} while (ret != MAP_FAILED);

		if (errno != ENOMEM) {
			printf("ERR: unexpected errno: %d (last map=%p)\n",
			errno, last_map);
		}

		return 0;
	}
	---------------------------------------------------------------

	$ gcc -m32 -o test test.c
	$ sudo sysctl -w vm.mmap_min_addr=65536
	vm.mmap_min_addr = 65536
	$ ./test  (run as non-priviledge user)
	ERR: unexpected errno: 1 (last map=0x10000)

Signed-off-by: Akira Takeuchi <takeuchi.akr@jp.panasonic.com>
Signed-off-by: Kiyoshi Owada <owada.kiyoshi@jp.panasonic.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/mmap.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/mm/mmap.c b/mm/mmap.c
index fa206abb5c9d..3d3e224be771 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1856,7 +1856,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	struct vm_area_struct *vma;
 	struct vm_unmapped_area_info info;
 
-	if (len > TASK_SIZE)
+	if (len > TASK_SIZE - mmap_min_addr)
 		return -ENOMEM;
 
 	if (flags & MAP_FIXED)
@@ -1865,7 +1865,7 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
 	if (addr) {
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
+		if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
 		    (!vma || addr + len <= vma->vm_start))
 			return addr;
 	}
@@ -1895,7 +1895,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	struct vm_unmapped_area_info info;
 
 	/* requested length too big for entire address space */
-	if (len > TASK_SIZE)
+	if (len > TASK_SIZE - mmap_min_addr)
 		return -ENOMEM;
 
 	if (flags & MAP_FIXED)
@@ -1905,14 +1905,14 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 	if (addr) {
 		addr = PAGE_ALIGN(addr);
 		vma = find_vma(mm, addr);
-		if (TASK_SIZE - len >= addr &&
+		if (TASK_SIZE - len >= addr && addr >= mmap_min_addr &&
 				(!vma || addr + len <= vma->vm_start))
 			return addr;
 	}
 
 	info.flags = VM_UNMAPPED_AREA_TOPDOWN;
 	info.length = len;
-	info.low_limit = PAGE_SIZE;
+	info.low_limit = max(PAGE_SIZE, mmap_min_addr);
 	info.high_limit = mm->mmap_base;
 	info.align_mask = 0;
 	addr = vm_unmapped_area(&info);
-- 
cgit 


From f35c3a8eed52878c2dde9c4b9a87b276127f7f8d Mon Sep 17 00:00:00 2001
From: Qiang Huang <h.huangqiang@huawei.com>
Date: Tue, 12 Nov 2013 15:08:22 -0800
Subject: memcg, kmem: use is_root_cache instead of hard code

Signed-off-by: Qiang Huang <h.huangqiang@huawei.com>
Reviewed-by: Pekka Enberg <penberg@kernel.org>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Glauber Costa <glommer@parallels.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/memcontrol.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index c89072443166..3d28d5a61efd 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -59,6 +59,7 @@
 #include <net/sock.h>
 #include <net/ip.h>
 #include <net/tcp_memcontrol.h>
+#include "slab.h"
 
 #include <asm/uaccess.h>
 
@@ -3131,7 +3132,7 @@ int memcg_update_cache_size(struct kmem_cache *s, int num_groups)
 {
 	struct memcg_cache_params *cur_params = s->memcg_params;
 
-	VM_BUG_ON(s->memcg_params && !s->memcg_params->is_root_cache);
+	VM_BUG_ON(!is_root_cache(s));
 
 	if (num_groups > memcg_limited_groups_array_size) {
 		int i;
-- 
cgit 


From 2ade4de871172b17dd81b336cf0488a83885ffde Mon Sep 17 00:00:00 2001
From: Qiang Huang <h.huangqiang@huawei.com>
Date: Tue, 12 Nov 2013 15:08:23 -0800
Subject: memcg, kmem: rename cache_from_memcg to cache_from_memcg_idx

We can't see the relationship with memcg from the parameters,
so the name with memcg_idx would be more reasonable.

Signed-off-by: Qiang Huang <h.huangqiang@huawei.com>
Reviewed-by: Pekka Enberg <penberg@kernel.org>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Glauber Costa <glommer@parallels.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/slab.c        | 2 +-
 mm/slab.h        | 6 ++++--
 mm/slab_common.c | 2 +-
 mm/slub.c        | 2 +-
 4 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index 2580db062df9..0c8967bb2018 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -3982,7 +3982,7 @@ static int do_tune_cpucache(struct kmem_cache *cachep, int limit,
 
 	VM_BUG_ON(!mutex_is_locked(&slab_mutex));
 	for_each_memcg_cache_index(i) {
-		c = cache_from_memcg(cachep, i);
+		c = cache_from_memcg_idx(cachep, i);
 		if (c)
 			/* return value determined by the parent cache only */
 			__do_tune_cpucache(c, limit, batchcount, shared, gfp);
diff --git a/mm/slab.h b/mm/slab.h
index a535033f7e9a..0859c4241ba1 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -160,7 +160,8 @@ static inline const char *cache_name(struct kmem_cache *s)
 	return s->name;
 }
 
-static inline struct kmem_cache *cache_from_memcg(struct kmem_cache *s, int idx)
+static inline struct kmem_cache *
+cache_from_memcg_idx(struct kmem_cache *s, int idx)
 {
 	if (!s->memcg_params)
 		return NULL;
@@ -204,7 +205,8 @@ static inline const char *cache_name(struct kmem_cache *s)
 	return s->name;
 }
 
-static inline struct kmem_cache *cache_from_memcg(struct kmem_cache *s, int idx)
+static inline struct kmem_cache *
+cache_from_memcg_idx(struct kmem_cache *s, int idx)
 {
 	return NULL;
 }
diff --git a/mm/slab_common.c b/mm/slab_common.c
index e2e98af703ea..0b7bb399b0e4 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -571,7 +571,7 @@ memcg_accumulate_slabinfo(struct kmem_cache *s, struct slabinfo *info)
 		return;
 
 	for_each_memcg_cache_index(i) {
-		c = cache_from_memcg(s, i);
+		c = cache_from_memcg_idx(s, i);
 		if (!c)
 			continue;
 
diff --git a/mm/slub.c b/mm/slub.c
index c3eb3d3ca835..92737a0b787b 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -4983,7 +4983,7 @@ static ssize_t slab_attr_store(struct kobject *kobj,
 		 * through the descendants with best-effort propagation.
 		 */
 		for_each_memcg_cache_index(i) {
-			struct kmem_cache *c = cache_from_memcg(s, i);
+			struct kmem_cache *c = cache_from_memcg_idx(s, i);
 			if (c)
 				attribute->store(c, buf, len);
 		}
-- 
cgit 


From 7a67d7abcc8da30a16ed64c3909d3fea004bde93 Mon Sep 17 00:00:00 2001
From: Qiang Huang <h.huangqiang@huawei.com>
Date: Tue, 12 Nov 2013 15:08:24 -0800
Subject: memcg, kmem: use cache_from_memcg_idx instead of hard code

Signed-off-by: Qiang Huang <h.huangqiang@huawei.com>
Reviewed-by: Pekka Enberg <penberg@kernel.org>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Glauber Costa <glommer@parallels.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/memcontrol.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 3d28d5a61efd..3d4bb07c7679 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2956,7 +2956,7 @@ static struct kmem_cache *memcg_params_to_cache(struct memcg_cache_params *p)
 
 	VM_BUG_ON(p->is_root_cache);
 	cachep = p->root_cache;
-	return cachep->memcg_params->memcg_caches[memcg_cache_id(p->memcg)];
+	return cache_from_memcg_idx(cachep, memcg_cache_id(p->memcg));
 }
 
 #ifdef CONFIG_SLABINFO
@@ -3393,7 +3393,7 @@ static struct kmem_cache *memcg_create_kmem_cache(struct mem_cgroup *memcg,
 	idx = memcg_cache_id(memcg);
 
 	mutex_lock(&memcg_cache_mutex);
-	new_cachep = cachep->memcg_params->memcg_caches[idx];
+	new_cachep = cache_from_memcg_idx(cachep, idx);
 	if (new_cachep) {
 		css_put(&memcg->css);
 		goto out;
@@ -3439,8 +3439,8 @@ void kmem_cache_destroy_memcg_children(struct kmem_cache *s)
 	 * we'll take the set_limit_mutex to protect ourselves against this.
 	 */
 	mutex_lock(&set_limit_mutex);
-	for (i = 0; i < memcg_limited_groups_array_size; i++) {
-		c = s->memcg_params->memcg_caches[i];
+	for_each_memcg_cache_index(i) {
+		c = cache_from_memcg_idx(s, i);
 		if (!c)
 			continue;
 
@@ -3573,8 +3573,8 @@ struct kmem_cache *__memcg_kmem_get_cache(struct kmem_cache *cachep,
 	 * code updating memcg_caches will issue a write barrier to match this.
 	 */
 	read_barrier_depends();
-	if (likely(cachep->memcg_params->memcg_caches[idx])) {
-		cachep = cachep->memcg_params->memcg_caches[idx];
+	if (likely(cache_from_memcg_idx(cachep, idx))) {
+		cachep = cache_from_memcg_idx(cachep, idx);
 		goto out;
 	}
 
-- 
cgit 


From 67d13fe846c57a54d12578e7a4518f68c5c86ad7 Mon Sep 17 00:00:00 2001
From: Weijie Yang <weijie.yang@samsung.com>
Date: Tue, 12 Nov 2013 15:08:26 -0800
Subject: mm/zswap: bugfix: memory leak when invalidate and reclaim occur
 concurrently

Consider the following scenario:

thread 0: reclaim entry x (get refcount, but not call zswap_get_swap_cache_page)
thread 1: call zswap_frontswap_invalidate_page to invalidate entry x.
	finished, entry x and its zbud is not freed as its refcount != 0
	now, the swap_map[x] = 0
thread 0: now call zswap_get_swap_cache_page
	swapcache_prepare return -ENOENT because entry x is not used any more
	zswap_get_swap_cache_page return ZSWAP_SWAPCACHE_NOMEM
	zswap_writeback_entry do nothing except put refcount

Now, the memory of zswap_entry x and its zpage leak.

Modify:
 - check the refcount in fail path, free memory if it is not referenced.

 - use ZSWAP_SWAPCACHE_FAIL instead of ZSWAP_SWAPCACHE_NOMEM as the fail path
   can be not only caused by nomem but also by invalidate.

Signed-off-by: Weijie Yang <weijie.yang@samsung.com>
Reviewed-by: Bob Liu <bob.liu@oracle.com>
Reviewed-by: Minchan Kim <minchan@kernel.org>
Acked-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/zswap.c | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/mm/zswap.c b/mm/zswap.c
index 001474c1a594..0ffcad03baea 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -387,7 +387,7 @@ static void zswap_free_entry(struct zswap_tree *tree, struct zswap_entry *entry)
 enum zswap_get_swap_ret {
 	ZSWAP_SWAPCACHE_NEW,
 	ZSWAP_SWAPCACHE_EXIST,
-	ZSWAP_SWAPCACHE_NOMEM
+	ZSWAP_SWAPCACHE_FAIL,
 };
 
 /*
@@ -401,9 +401,10 @@ enum zswap_get_swap_ret {
  * added to the swap cache, and returned in retpage.
  *
  * If success, the swap cache page is returned in retpage
- * Returns 0 if page was already in the swap cache, page is not locked
- * Returns 1 if the new page needs to be populated, page is locked
- * Returns <0 on error
+ * Returns ZSWAP_SWAPCACHE_EXIST if page was already in the swap cache
+ * Returns ZSWAP_SWAPCACHE_NEW if the new page needs to be populated,
+ *     the new page is added to swapcache and locked
+ * Returns ZSWAP_SWAPCACHE_FAIL on error
  */
 static int zswap_get_swap_cache_page(swp_entry_t entry,
 				struct page **retpage)
@@ -475,7 +476,7 @@ static int zswap_get_swap_cache_page(swp_entry_t entry,
 	if (new_page)
 		page_cache_release(new_page);
 	if (!found_page)
-		return ZSWAP_SWAPCACHE_NOMEM;
+		return ZSWAP_SWAPCACHE_FAIL;
 	*retpage = found_page;
 	return ZSWAP_SWAPCACHE_EXIST;
 }
@@ -529,11 +530,11 @@ static int zswap_writeback_entry(struct zbud_pool *pool, unsigned long handle)
 
 	/* try to allocate swap cache page */
 	switch (zswap_get_swap_cache_page(swpentry, &page)) {
-	case ZSWAP_SWAPCACHE_NOMEM: /* no memory */
+	case ZSWAP_SWAPCACHE_FAIL: /* no memory or invalidate happened */
 		ret = -ENOMEM;
 		goto fail;
 
-	case ZSWAP_SWAPCACHE_EXIST: /* page is unlocked */
+	case ZSWAP_SWAPCACHE_EXIST:
 		/* page is already in the swap cache, ignore for now */
 		page_cache_release(page);
 		ret = -EEXIST;
@@ -594,7 +595,12 @@ static int zswap_writeback_entry(struct zbud_pool *pool, unsigned long handle)
 
 fail:
 	spin_lock(&tree->lock);
-	zswap_entry_put(entry);
+	refcount = zswap_entry_put(entry);
+	if (refcount <= 0) {
+		/* invalidate happened, consider writeback as success */
+		zswap_free_entry(tree, entry);
+		ret = 0;
+	}
 	spin_unlock(&tree->lock);
 	return ret;
 }
-- 
cgit 


From 0ab0abcf511545d1fddbe72a36b3ca73388ac937 Mon Sep 17 00:00:00 2001
From: Weijie Yang <weijie.yang@samsung.com>
Date: Tue, 12 Nov 2013 15:08:27 -0800
Subject: mm/zswap: refactor the get/put routines

The refcount routine was not fit the kernel get/put semantic exactly,
There were too many judgement statements on refcount and it could be
minus.

This patch does the following:

 - move refcount judgement to zswap_entry_put() to hide resource free function.

 - add a new function zswap_entry_find_get(), so that callers can use
   easily in the following pattern:

     zswap_entry_find_get
     .../* do something */
     zswap_entry_put

 - to eliminate compile error, move some functions declaration

This patch is based on Minchan Kim <minchan@kernel.org> 's idea and suggestion.

Signed-off-by: Weijie Yang <weijie.yang@samsung.com>
Cc: Seth Jennings <sjennings@variantweb.net>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: Bob Liu <bob.liu@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/zswap.c | 182 ++++++++++++++++++++++++++++++-------------------------------
 1 file changed, 88 insertions(+), 94 deletions(-)

diff --git a/mm/zswap.c b/mm/zswap.c
index 0ffcad03baea..5a63f78a5601 100644
--- a/mm/zswap.c
+++ b/mm/zswap.c
@@ -217,6 +217,7 @@ static struct zswap_entry *zswap_entry_cache_alloc(gfp_t gfp)
 	if (!entry)
 		return NULL;
 	entry->refcount = 1;
+	RB_CLEAR_NODE(&entry->rbnode);
 	return entry;
 }
 
@@ -225,19 +226,6 @@ static void zswap_entry_cache_free(struct zswap_entry *entry)
 	kmem_cache_free(zswap_entry_cache, entry);
 }
 
-/* caller must hold the tree lock */
-static void zswap_entry_get(struct zswap_entry *entry)
-{
-	entry->refcount++;
-}
-
-/* caller must hold the tree lock */
-static int zswap_entry_put(struct zswap_entry *entry)
-{
-	entry->refcount--;
-	return entry->refcount;
-}
-
 /*********************************
 * rbtree functions
 **********************************/
@@ -285,6 +273,61 @@ static int zswap_rb_insert(struct rb_root *root, struct zswap_entry *entry,
 	return 0;
 }
 
+static void zswap_rb_erase(struct rb_root *root, struct zswap_entry *entry)
+{
+	if (!RB_EMPTY_NODE(&entry->rbnode)) {
+		rb_erase(&entry->rbnode, root);
+		RB_CLEAR_NODE(&entry->rbnode);
+	}
+}
+
+/*
+ * Carries out the common pattern of freeing and entry's zsmalloc allocation,
+ * freeing the entry itself, and decrementing the number of stored pages.
+ */
+static void zswap_free_entry(struct zswap_tree *tree,
+			struct zswap_entry *entry)
+{
+	zbud_free(tree->pool, entry->handle);
+	zswap_entry_cache_free(entry);
+	atomic_dec(&zswap_stored_pages);
+	zswap_pool_pages = zbud_get_pool_size(tree->pool);
+}
+
+/* caller must hold the tree lock */
+static void zswap_entry_get(struct zswap_entry *entry)
+{
+	entry->refcount++;
+}
+
+/* caller must hold the tree lock
+* remove from the tree and free it, if nobody reference the entry
+*/
+static void zswap_entry_put(struct zswap_tree *tree,
+			struct zswap_entry *entry)
+{
+	int refcount = --entry->refcount;
+
+	BUG_ON(refcount < 0);
+	if (refcount == 0) {
+		zswap_rb_erase(&tree->rbroot, entry);
+		zswap_free_entry(tree, entry);
+	}
+}
+
+/* caller must hold the tree lock */
+static struct zswap_entry *zswap_entry_find_get(struct rb_root *root,
+				pgoff_t offset)
+{
+	struct zswap_entry *entry = NULL;
+
+	entry = zswap_rb_search(root, offset);
+	if (entry)
+		zswap_entry_get(entry);
+
+	return entry;
+}
+
 /*********************************
 * per-cpu code
 **********************************/
@@ -368,18 +411,6 @@ static bool zswap_is_full(void)
 		zswap_pool_pages);
 }
 
-/*
- * Carries out the common pattern of freeing and entry's zsmalloc allocation,
- * freeing the entry itself, and decrementing the number of stored pages.
- */
-static void zswap_free_entry(struct zswap_tree *tree, struct zswap_entry *entry)
-{
-	zbud_free(tree->pool, entry->handle);
-	zswap_entry_cache_free(entry);
-	atomic_dec(&zswap_stored_pages);
-	zswap_pool_pages = zbud_get_pool_size(tree->pool);
-}
-
 /*********************************
 * writeback code
 **********************************/
@@ -503,7 +534,7 @@ static int zswap_writeback_entry(struct zbud_pool *pool, unsigned long handle)
 	struct page *page;
 	u8 *src, *dst;
 	unsigned int dlen;
-	int ret, refcount;
+	int ret;
 	struct writeback_control wbc = {
 		.sync_mode = WB_SYNC_NONE,
 	};
@@ -518,13 +549,12 @@ static int zswap_writeback_entry(struct zbud_pool *pool, unsigned long handle)
 
 	/* find and ref zswap entry */
 	spin_lock(&tree->lock);
-	entry = zswap_rb_search(&tree->rbroot, offset);
+	entry = zswap_entry_find_get(&tree->rbroot, offset);
 	if (!entry) {
 		/* entry was invalidated */
 		spin_unlock(&tree->lock);
 		return 0;
 	}
-	zswap_entry_get(entry);
 	spin_unlock(&tree->lock);
 	BUG_ON(offset != entry->offset);
 
@@ -566,42 +596,35 @@ static int zswap_writeback_entry(struct zbud_pool *pool, unsigned long handle)
 	zswap_written_back_pages++;
 
 	spin_lock(&tree->lock);
-
 	/* drop local reference */
-	zswap_entry_put(entry);
-	/* drop the initial reference from entry creation */
-	refcount = zswap_entry_put(entry);
+	zswap_entry_put(tree, entry);
 
 	/*
-	 * There are three possible values for refcount here:
-	 * (1) refcount is 1, load is in progress, unlink from rbtree,
-	 *     load will free
-	 * (2) refcount is 0, (normal case) entry is valid,
-	 *     remove from rbtree and free entry
-	 * (3) refcount is -1, invalidate happened during writeback,
-	 *     free entry
-	 */
-	if (refcount >= 0) {
-		/* no invalidate yet, remove from rbtree */
-		rb_erase(&entry->rbnode, &tree->rbroot);
-	}
+	* There are two possible situations for entry here:
+	* (1) refcount is 1(normal case),  entry is valid and on the tree
+	* (2) refcount is 0, entry is freed and not on the tree
+	*     because invalidate happened during writeback
+	*  search the tree and free the entry if find entry
+	*/
+	if (entry == zswap_rb_search(&tree->rbroot, offset))
+		zswap_entry_put(tree, entry);
 	spin_unlock(&tree->lock);
-	if (refcount <= 0) {
-		/* free the entry */
-		zswap_free_entry(tree, entry);
-		return 0;
-	}
-	return -EAGAIN;
 
+	goto end;
+
+	/*
+	* if we get here due to ZSWAP_SWAPCACHE_EXIST
+	* a load may happening concurrently
+	* it is safe and okay to not free the entry
+	* if we free the entry in the following put
+	* it it either okay to return !0
+	*/
 fail:
 	spin_lock(&tree->lock);
-	refcount = zswap_entry_put(entry);
-	if (refcount <= 0) {
-		/* invalidate happened, consider writeback as success */
-		zswap_free_entry(tree, entry);
-		ret = 0;
-	}
+	zswap_entry_put(tree, entry);
 	spin_unlock(&tree->lock);
+
+end:
 	return ret;
 }
 
@@ -685,11 +708,8 @@ static int zswap_frontswap_store(unsigned type, pgoff_t offset,
 		if (ret == -EEXIST) {
 			zswap_duplicate_entry++;
 			/* remove from rbtree */
-			rb_erase(&dupentry->rbnode, &tree->rbroot);
-			if (!zswap_entry_put(dupentry)) {
-				/* free */
-				zswap_free_entry(tree, dupentry);
-			}
+			zswap_rb_erase(&tree->rbroot, dupentry);
+			zswap_entry_put(tree, dupentry);
 		}
 	} while (ret == -EEXIST);
 	spin_unlock(&tree->lock);
@@ -718,17 +738,16 @@ static int zswap_frontswap_load(unsigned type, pgoff_t offset,
 	struct zswap_entry *entry;
 	u8 *src, *dst;
 	unsigned int dlen;
-	int refcount, ret;
+	int ret;
 
 	/* find */
 	spin_lock(&tree->lock);
-	entry = zswap_rb_search(&tree->rbroot, offset);
+	entry = zswap_entry_find_get(&tree->rbroot, offset);
 	if (!entry) {
 		/* entry was written back */
 		spin_unlock(&tree->lock);
 		return -1;
 	}
-	zswap_entry_get(entry);
 	spin_unlock(&tree->lock);
 
 	/* decompress */
@@ -743,22 +762,9 @@ static int zswap_frontswap_load(unsigned type, pgoff_t offset,
 	BUG_ON(ret);
 
 	spin_lock(&tree->lock);
-	refcount = zswap_entry_put(entry);
-	if (likely(refcount)) {
-		spin_unlock(&tree->lock);
-		return 0;
-	}
+	zswap_entry_put(tree, entry);
 	spin_unlock(&tree->lock);
 
-	/*
-	 * We don't have to unlink from the rbtree because
-	 * zswap_writeback_entry() or zswap_frontswap_invalidate page()
-	 * has already done this for us if we are the last reference.
-	 */
-	/* free */
-
-	zswap_free_entry(tree, entry);
-
 	return 0;
 }
 
@@ -767,7 +773,6 @@ static void zswap_frontswap_invalidate_page(unsigned type, pgoff_t offset)
 {
 	struct zswap_tree *tree = zswap_trees[type];
 	struct zswap_entry *entry;
-	int refcount;
 
 	/* find */
 	spin_lock(&tree->lock);
@@ -779,20 +784,12 @@ static void zswap_frontswap_invalidate_page(unsigned type, pgoff_t offset)
 	}
 
 	/* remove from rbtree */
-	rb_erase(&entry->rbnode, &tree->rbroot);
+	zswap_rb_erase(&tree->rbroot, entry);
 
 	/* drop the initial reference from entry creation */
-	refcount = zswap_entry_put(entry);
+	zswap_entry_put(tree, entry);
 
 	spin_unlock(&tree->lock);
-
-	if (refcount) {
-		/* writeback in progress, writeback will free */
-		return;
-	}
-
-	/* free */
-	zswap_free_entry(tree, entry);
 }
 
 /* frees all zswap entries for the given swap type */
@@ -806,11 +803,8 @@ static void zswap_frontswap_invalidate_area(unsigned type)
 
 	/* walk the tree and free everything */
 	spin_lock(&tree->lock);
-	rbtree_postorder_for_each_entry_safe(entry, n, &tree->rbroot, rbnode) {
-		zbud_free(tree->pool, entry->handle);
-		zswap_entry_cache_free(entry);
-		atomic_dec(&zswap_stored_pages);
-	}
+	rbtree_postorder_for_each_entry_safe(entry, n, &tree->rbroot, rbnode)
+		zswap_free_entry(tree, entry);
 	tree->rbroot = RB_ROOT;
 	spin_unlock(&tree->lock);
 
-- 
cgit 


From d4dd100f2ebb2bc9aca5378ad3cb333b6117069c Mon Sep 17 00:00:00 2001
From: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Date: Tue, 12 Nov 2013 15:08:28 -0800
Subject: arch/x86/mm/init.c: fix incorrect function name in alloc_low_pages()

Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/x86/mm/init.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 91b522072a4d..f97130618113 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -53,12 +53,12 @@ __ref void *alloc_low_pages(unsigned int num)
 	if ((pgt_buf_end + num) > pgt_buf_top || !can_use_brk_pgt) {
 		unsigned long ret;
 		if (min_pfn_mapped >= max_pfn_mapped)
-			panic("alloc_low_page: ran out of memory");
+			panic("alloc_low_pages: ran out of memory");
 		ret = memblock_find_in_range(min_pfn_mapped << PAGE_SHIFT,
 					max_pfn_mapped << PAGE_SHIFT,
 					PAGE_SIZE * num , PAGE_SIZE);
 		if (!ret)
-			panic("alloc_low_page: can not alloc memory");
+			panic("alloc_low_pages: can not alloc memory");
 		memblock_reserve(ret, PAGE_SIZE * num);
 		pfn = ret >> PAGE_SHIFT;
 	} else {
-- 
cgit 


From a1aeb65a4c80d8e97eca8bcde02a5aeae11f6201 Mon Sep 17 00:00:00 2001
From: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Date: Tue, 12 Nov 2013 15:08:29 -0800
Subject: mm/page_alloc.c: fix comment in zlc_setup()

Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/page_alloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index cb17e8b800d6..580a5f075ed0 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1705,7 +1705,7 @@ bool zone_watermark_ok_safe(struct zone *z, int order, unsigned long mark,
  * comments in mmzone.h.  Reduces cache footprint of zonelist scans
  * that have to skip over a lot of full or unallowed zones.
  *
- * If the zonelist cache is present in the passed in zonelist, then
+ * If the zonelist cache is present in the passed zonelist, then
  * returns a pointer to the allowed node mask (either the current
  * tasks mems_allowed, or node_states[N_MEMORY].)
  *
-- 
cgit 


From 715ea41e60277f28f84d6c937737350e00955d56 Mon Sep 17 00:00:00 2001
From: Zheng Liu <wenqing.lz@taobao.com>
Date: Tue, 12 Nov 2013 15:08:30 -0800
Subject: mm: improve the description for dirty_background_ratio/dirty_ratio
 sysctl

Now dirty_background_ratio/dirty_ratio contains a percentage of total
avaiable memory, which contains free pages and reclaimable pages.  The
number of these pages is not equal to the number of total system memory.
But they are described as a percentage of total system memory in
Documentation/sysctl/vm.txt.  So we need to fix them to avoid
misunderstanding.

Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Cc: Rob Landley <rob@landley.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Documentation/sysctl/vm.txt | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/Documentation/sysctl/vm.txt b/Documentation/sysctl/vm.txt
index 79a797eb3e87..1fbd4eb7b64a 100644
--- a/Documentation/sysctl/vm.txt
+++ b/Documentation/sysctl/vm.txt
@@ -119,8 +119,11 @@ other appears as 0 when read.
 
 dirty_background_ratio
 
-Contains, as a percentage of total system memory, the number of pages at which
-the background kernel flusher threads will start writing out dirty data.
+Contains, as a percentage of total available memory that contains free pages
+and reclaimable pages, the number of pages at which the background kernel
+flusher threads will start writing out dirty data.
+
+The total avaiable memory is not equal to total system memory.
 
 ==============================================================
 
@@ -151,9 +154,11 @@ interval will be written out next time a flusher thread wakes up.
 
 dirty_ratio
 
-Contains, as a percentage of total system memory, the number of pages at which
-a process which is generating disk writes will itself start writing out dirty
-data.
+Contains, as a percentage of total available memory that contains free pages
+and reclaimable pages, the number of pages at which a process which is
+generating disk writes will itself start writing out dirty data.
+
+The total avaiable memory is not equal to total system memory.
 
 ==============================================================
 
-- 
cgit 


From 00619bcc44d6b779aa366130b354153c222e4380 Mon Sep 17 00:00:00 2001
From: Jerome Marchand <jmarchan@redhat.com>
Date: Tue, 12 Nov 2013 15:08:31 -0800
Subject: mm: factor commit limit calculation

The same calculation is currently done in three differents places.
Factor that code so future changes has to be made at only one place.

[akpm@linux-foundation.org: uninline vm_commit_limit()]
Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/proc/meminfo.c    |  5 +----
 include/linux/mman.h |  2 ++
 mm/mmap.c            |  4 +---
 mm/nommu.c           |  3 +--
 mm/util.c            | 13 +++++++++++++
 5 files changed, 18 insertions(+), 9 deletions(-)

diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index 59d85d608898..c805d5b69ba1 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -24,7 +24,6 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
 {
 	struct sysinfo i;
 	unsigned long committed;
-	unsigned long allowed;
 	struct vmalloc_info vmi;
 	long cached;
 	unsigned long pages[NR_LRU_LISTS];
@@ -37,8 +36,6 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
 	si_meminfo(&i);
 	si_swapinfo(&i);
 	committed = percpu_counter_read_positive(&vm_committed_as);
-	allowed = ((totalram_pages - hugetlb_total_pages())
-		* sysctl_overcommit_ratio / 100) + total_swap_pages;
 
 	cached = global_page_state(NR_FILE_PAGES) -
 			total_swapcache_pages() - i.bufferram;
@@ -147,7 +144,7 @@ static int meminfo_proc_show(struct seq_file *m, void *v)
 		K(global_page_state(NR_UNSTABLE_NFS)),
 		K(global_page_state(NR_BOUNCE)),
 		K(global_page_state(NR_WRITEBACK_TEMP)),
-		K(allowed),
+		K(vm_commit_limit()),
 		K(committed),
 		(unsigned long)VMALLOC_TOTAL >> 10,
 		vmi.used >> 10,
diff --git a/include/linux/mman.h b/include/linux/mman.h
index 92dc257251e4..7f7f8dae4b1d 100644
--- a/include/linux/mman.h
+++ b/include/linux/mman.h
@@ -87,4 +87,6 @@ calc_vm_flag_bits(unsigned long flags)
 	       _calc_vm_trans(flags, MAP_DENYWRITE,  VM_DENYWRITE ) |
 	       _calc_vm_trans(flags, MAP_LOCKED,     VM_LOCKED    );
 }
+
+unsigned long vm_commit_limit(void);
 #endif /* _LINUX_MMAN_H */
diff --git a/mm/mmap.c b/mm/mmap.c
index 3d3e224be771..803048e9c568 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -179,14 +179,12 @@ int __vm_enough_memory(struct mm_struct *mm, long pages, int cap_sys_admin)
 		goto error;
 	}
 
-	allowed = (totalram_pages - hugetlb_total_pages())
-	       	* sysctl_overcommit_ratio / 100;
+	allowed = vm_commit_limit();
 	/*
 	 * Reserve some for root
 	 */
 	if (!cap_sys_admin)
 		allowed -= sysctl_admin_reserve_kbytes >> (PAGE_SHIFT - 10);
-	allowed += total_swap_pages;
 
 	/*
 	 * Don't let a single process grow so big a user can't recover
diff --git a/mm/nommu.c b/mm/nommu.c
index ecd1f158548e..d8a957bb9e31 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -1948,13 +1948,12 @@ int __vm_enough_memory(struct mm_struct *mm, long pages, int cap_sys_admin)
 		goto error;
 	}
 
-	allowed = totalram_pages * sysctl_overcommit_ratio / 100;
+	allowed = vm_commit_limit();
 	/*
 	 * Reserve some 3% for root
 	 */
 	if (!cap_sys_admin)
 		allowed -= sysctl_admin_reserve_kbytes >> (PAGE_SHIFT - 10);
-	allowed += total_swap_pages;
 
 	/*
 	 * Don't let a single process grow so big a user can't recover
diff --git a/mm/util.c b/mm/util.c
index eaf63fc2c92f..f7bc2096071c 100644
--- a/mm/util.c
+++ b/mm/util.c
@@ -7,6 +7,9 @@
 #include <linux/security.h>
 #include <linux/swap.h>
 #include <linux/swapops.h>
+#include <linux/mman.h>
+#include <linux/hugetlb.h>
+
 #include <asm/uaccess.h>
 
 #include "internal.h"
@@ -398,6 +401,16 @@ struct address_space *page_mapping(struct page *page)
 	return mapping;
 }
 
+/*
+ * Committed memory limit enforced when OVERCOMMIT_NEVER policy is used
+ */
+unsigned long vm_commit_limit(void)
+{
+	return ((totalram_pages - hugetlb_total_pages())
+		* sysctl_overcommit_ratio / 100) + total_swap_pages;
+}
+
+
 /* Tracepoints definitions. */
 EXPORT_TRACEPOINT_SYMBOL(kmalloc);
 EXPORT_TRACEPOINT_SYMBOL(kmem_cache_alloc);
-- 
cgit 


From 72403b4a0fbdf433c1fe0127e49864658f6f6468 Mon Sep 17 00:00:00 2001
From: Mel Gorman <mgorman@suse.de>
Date: Tue, 12 Nov 2013 15:08:32 -0800
Subject: mm: numa: return the number of base pages altered by protection
 changes

Commit 0255d4918480 ("mm: Account for a THP NUMA hinting update as one
PTE update") was added to account for the number of PTE updates when
marking pages prot_numa.  task_numa_work was using the old return value
to track how much address space had been updated.  Altering the return
value causes the scanner to do more work than it is configured or
documented to in a single unit of work.

This patch reverts that commit and accounts for the number of THP
updates separately in vmstat.  It is up to the administrator to
interpret the pair of values correctly.  This is a straight-forward
operation and likely to only be of interest when actively debugging NUMA
balancing problems.

The impact of this patch is that the NUMA PTE scanner will scan slower
when THP is enabled and workloads may converge slower as a result.  On
the flip size system CPU usage should be lower than recent tests
reported.  This is an illustrative example of a short single JVM specjbb
test

specjbb
                       3.12.0                3.12.0
                      vanilla      acctupdates
TPut 1      26143.00 (  0.00%)     25747.00 ( -1.51%)
TPut 7     185257.00 (  0.00%)    183202.00 ( -1.11%)
TPut 13    329760.00 (  0.00%)    346577.00 (  5.10%)
TPut 19    442502.00 (  0.00%)    460146.00 (  3.99%)
TPut 25    540634.00 (  0.00%)    549053.00 (  1.56%)
TPut 31    512098.00 (  0.00%)    519611.00 (  1.47%)
TPut 37    461276.00 (  0.00%)    474973.00 (  2.97%)
TPut 43    403089.00 (  0.00%)    414172.00 (  2.75%)

              3.12.0      3.12.0
             vanillaacctupdates
User         5169.64     5184.14
System        100.45       80.02
Elapsed       252.75      251.85

Performance is similar but note the reduction in system CPU time.  While
this showed a performance gain, it will not be universal but at least
it'll be behaving as documented.  The vmstats are obviously different but
here is an obvious interpretation of them from mmtests.

                                3.12.0      3.12.0
                               vanillaacctupdates
NUMA page range updates        1408326    11043064
NUMA huge PMD updates                0       21040
NUMA PTE updates               1408326      291624

"NUMA page range updates" == nr_pte_updates and is the value returned to
the NUMA pte scanner.  NUMA huge PMD updates were the number of THP
updates which in combination can be used to calculate how many ptes were
updated from userspace.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Reported-by: Alex Thorlton <athorlton@sgi.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/vm_event_item.h |  1 +
 mm/mprotect.c                 | 10 +++++++---
 mm/vmstat.c                   |  1 +
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/include/linux/vm_event_item.h b/include/linux/vm_event_item.h
index 1855f0a22add..c557c6d096de 100644
--- a/include/linux/vm_event_item.h
+++ b/include/linux/vm_event_item.h
@@ -39,6 +39,7 @@ enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
 		PAGEOUTRUN, ALLOCSTALL, PGROTATED,
 #ifdef CONFIG_NUMA_BALANCING
 		NUMA_PTE_UPDATES,
+		NUMA_HUGE_PTE_UPDATES,
 		NUMA_HINT_FAULTS,
 		NUMA_HINT_FAULTS_LOCAL,
 		NUMA_PAGE_MIGRATE,
diff --git a/mm/mprotect.c b/mm/mprotect.c
index a597f2ffcd6f..26667971c824 100644
--- a/mm/mprotect.c
+++ b/mm/mprotect.c
@@ -112,6 +112,7 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
 	pmd_t *pmd;
 	unsigned long next;
 	unsigned long pages = 0;
+	unsigned long nr_huge_updates = 0;
 
 	pmd = pmd_offset(pud, addr);
 	do {
@@ -126,9 +127,10 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
 						newprot, prot_numa);
 
 				if (nr_ptes) {
-					if (nr_ptes == HPAGE_PMD_NR)
-						pages++;
-
+					if (nr_ptes == HPAGE_PMD_NR) {
+						pages += HPAGE_PMD_NR;
+						nr_huge_updates++;
+					}
 					continue;
 				}
 			}
@@ -141,6 +143,8 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma,
 		pages += this_pages;
 	} while (pmd++, addr = next, addr != end);
 
+	if (nr_huge_updates)
+		count_vm_numa_events(NUMA_HUGE_PTE_UPDATES, nr_huge_updates);
 	return pages;
 }
 
diff --git a/mm/vmstat.c b/mm/vmstat.c
index b6d17edf8cf3..72496140ac08 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -812,6 +812,7 @@ const char * const vmstat_text[] = {
 
 #ifdef CONFIG_NUMA_BALANCING
 	"numa_pte_updates",
+	"numa_huge_pte_updates",
 	"numa_hint_faults",
 	"numa_hint_faults_local",
 	"numa_pages_migrated",
-- 
cgit 


From 3d035f580699feba352f8703cced127fc203f0dd Mon Sep 17 00:00:00 2001
From: Prarit Bhargava <prarit@redhat.com>
Date: Tue, 12 Nov 2013 15:08:33 -0800
Subject: drivers/char/hpet.c: allow user controlled mmap for user processes

The CONFIG_HPET_MMAP Kconfig option exposes the memory map of the HPET
registers to userspace.  The Kconfig help points out that in some cases
this can be a security risk as some systems may erroneously configure the
map such that additional data is exposed to userspace.

This is a problem for distributions -- some users want the MMAP
functionality but it comes with a significant security risk.  In an effort
to mitigate this risk, and due to the low number of users of the MMAP
functionality, I've introduced a kernel parameter, hpet_mmap_enable, that
is required in order to actually have the HPET MMAP exposed.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Acked-by: Matt Wilson <msw@amazon.com>
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Documentation/kernel-parameters.txt |  3 +++
 drivers/char/Kconfig                | 10 ++++++++--
 drivers/char/hpet.c                 | 24 ++++++++++++++++++++++--
 3 files changed, 33 insertions(+), 4 deletions(-)

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 882a40d405c8..9ca3e74a10e1 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -1070,6 +1070,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 				VIA, nVidia)
 			verbose: show contents of HPET registers during setup
 
+	hpet_mmap=	[X86, HPET_MMAP] Allow userspace to mmap HPET
+			registers.  Default set by CONFIG_HPET_MMAP_DEFAULT.
+
 	hugepages=	[HW,X86-32,IA-64] HugeTLB pages to allocate at boot.
 	hugepagesz=	[HW,IA-64,PPC,X86-64] The size of the HugeTLB pages.
 			On x86-64 and powerpc, this option can be specified
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index 14219972c745..fa3243d71c76 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -522,10 +522,16 @@ config HPET_MMAP
 	  If you say Y here, user applications will be able to mmap
 	  the HPET registers.
 
+config HPET_MMAP_DEFAULT
+	bool "Enable HPET MMAP access by default"
+	default y
+	depends on HPET_MMAP
+	help
 	  In some hardware implementations, the page containing HPET
 	  registers may also contain other things that shouldn't be
-	  exposed to the user.  If this applies to your hardware,
-	  say N here.
+	  exposed to the user.  This option selects the default (if
+	  kernel parameter hpet_mmap is not set) user access to the
+	  registers for applications that require it.
 
 config HANGCHECK_TIMER
 	tristate "Hangcheck timer"
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index dca5834685cf..5d9c31dfc905 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -367,12 +367,29 @@ static unsigned int hpet_poll(struct file *file, poll_table * wait)
 	return 0;
 }
 
+#ifdef CONFIG_HPET_MMAP
+#ifdef CONFIG_HPET_MMAP_DEFAULT
+static int hpet_mmap_enabled = 1;
+#else
+static int hpet_mmap_enabled = 0;
+#endif
+
+static __init int hpet_mmap_enable(char *str)
+{
+	get_option(&str, &hpet_mmap_enabled);
+	pr_info("HPET mmap %s\n", hpet_mmap_enabled ? "enabled" : "disabled");
+	return 1;
+}
+__setup("hpet_mmap", hpet_mmap_enable);
+
 static int hpet_mmap(struct file *file, struct vm_area_struct *vma)
 {
-#ifdef	CONFIG_HPET_MMAP
 	struct hpet_dev *devp;
 	unsigned long addr;
 
+	if (!hpet_mmap_enabled)
+		return -EACCES;
+
 	devp = file->private_data;
 	addr = devp->hd_hpets->hp_hpet_phys;
 
@@ -381,10 +398,13 @@ static int hpet_mmap(struct file *file, struct vm_area_struct *vma)
 
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 	return vm_iomap_memory(vma, addr, PAGE_SIZE);
+}
 #else
+static int hpet_mmap(struct file *file, struct vm_area_struct *vma)
+{
 	return -ENOSYS;
-#endif
 }
+#endif
 
 static int hpet_fasync(int fd, struct file *file, int on)
 {
-- 
cgit 


From 623fd8072c7c4d77a184bc9e35192acf480c18e4 Mon Sep 17 00:00:00 2001
From: Greg Thelen <gthelen@google.com>
Date: Tue, 12 Nov 2013 15:08:34 -0800
Subject: percpu: add test module for various percpu operations

Tests various percpu operations.

Enable with CONFIG_PERCPU_TEST=m.

Signed-off-by: Greg Thelen <gthelen@google.com>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 lib/Kconfig.debug |   9 ++++
 lib/Makefile      |   2 +
 lib/percpu_test.c | 138 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 149 insertions(+)
 create mode 100644 lib/percpu_test.c

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index ebef88f61b7d..db25707aa41b 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -1481,6 +1481,15 @@ config INTERVAL_TREE_TEST
 	help
 	  A benchmark measuring the performance of the interval tree library
 
+config PERCPU_TEST
+	tristate "Per cpu operations test"
+	depends on m && DEBUG_KERNEL
+	help
+	  Enable this option to build test module which validates per-cpu
+	  operations.
+
+	  If unsure, say N.
+
 config ATOMIC64_SELFTEST
 	bool "Perform an atomic64_t self-test at boot"
 	help
diff --git a/lib/Makefile b/lib/Makefile
index f3bb2cb98adf..bb016e116ba4 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -157,6 +157,8 @@ obj-$(CONFIG_INTERVAL_TREE_TEST) += interval_tree_test.o
 
 interval_tree_test-objs := interval_tree_test_main.o interval_tree.o
 
+obj-$(CONFIG_PERCPU_TEST) += percpu_test.o
+
 obj-$(CONFIG_ASN1) += asn1_decoder.o
 
 obj-$(CONFIG_FONT_SUPPORT) += fonts/
diff --git a/lib/percpu_test.c b/lib/percpu_test.c
new file mode 100644
index 000000000000..0b5d14dadd1a
--- /dev/null
+++ b/lib/percpu_test.c
@@ -0,0 +1,138 @@
+#include <linux/module.h>
+
+/* validate @native and @pcp counter values match @expected */
+#define CHECK(native, pcp, expected)                                    \
+	do {                                                            \
+		WARN((native) != (expected),                            \
+		     "raw %ld (0x%lx) != expected %lld (0x%llx)",	\
+		     (native), (native),				\
+		     (long long)(expected), (long long)(expected));	\
+		WARN(__this_cpu_read(pcp) != (expected),                \
+		     "pcp %ld (0x%lx) != expected %lld (0x%llx)",	\
+		     __this_cpu_read(pcp), __this_cpu_read(pcp),	\
+		     (long long)(expected), (long long)(expected));	\
+	} while (0)
+
+static DEFINE_PER_CPU(long, long_counter);
+static DEFINE_PER_CPU(unsigned long, ulong_counter);
+
+static int __init percpu_test_init(void)
+{
+	/*
+	 * volatile prevents compiler from optimizing it uses, otherwise the
+	 * +ul_one/-ul_one below would replace with inc/dec instructions.
+	 */
+	volatile unsigned int ui_one = 1;
+	long l = 0;
+	unsigned long ul = 0;
+
+	pr_info("percpu test start\n");
+
+	preempt_disable();
+
+	l += -1;
+	__this_cpu_add(long_counter, -1);
+	CHECK(l, long_counter, -1);
+
+	l += 1;
+	__this_cpu_add(long_counter, 1);
+	CHECK(l, long_counter, 0);
+
+	ul = 0;
+	__this_cpu_write(ulong_counter, 0);
+
+	ul += 1UL;
+	__this_cpu_add(ulong_counter, 1UL);
+	CHECK(ul, ulong_counter, 1);
+
+	ul += -1UL;
+	__this_cpu_add(ulong_counter, -1UL);
+	CHECK(ul, ulong_counter, 0);
+
+	ul += -(unsigned long)1;
+	__this_cpu_add(ulong_counter, -(unsigned long)1);
+	CHECK(ul, ulong_counter, -1);
+
+	ul = 0;
+	__this_cpu_write(ulong_counter, 0);
+
+	ul -= 1;
+	__this_cpu_dec(ulong_counter);
+	CHECK(ul, ulong_counter, -1);
+	CHECK(ul, ulong_counter, ULONG_MAX);
+
+	l += -ui_one;
+	__this_cpu_add(long_counter, -ui_one);
+	CHECK(l, long_counter, 0xffffffff);
+
+	l += ui_one;
+	__this_cpu_add(long_counter, ui_one);
+	CHECK(l, long_counter, (long)0x100000000LL);
+
+
+	l = 0;
+	__this_cpu_write(long_counter, 0);
+
+	l -= ui_one;
+	__this_cpu_sub(long_counter, ui_one);
+	CHECK(l, long_counter, -1);
+
+	l = 0;
+	__this_cpu_write(long_counter, 0);
+
+	l += ui_one;
+	__this_cpu_add(long_counter, ui_one);
+	CHECK(l, long_counter, 1);
+
+	l += -ui_one;
+	__this_cpu_add(long_counter, -ui_one);
+	CHECK(l, long_counter, (long)0x100000000LL);
+
+	l = 0;
+	__this_cpu_write(long_counter, 0);
+
+	l -= ui_one;
+	this_cpu_sub(long_counter, ui_one);
+	CHECK(l, long_counter, -1);
+	CHECK(l, long_counter, ULONG_MAX);
+
+	ul = 0;
+	__this_cpu_write(ulong_counter, 0);
+
+	ul += ui_one;
+	__this_cpu_add(ulong_counter, ui_one);
+	CHECK(ul, ulong_counter, 1);
+
+	ul = 0;
+	__this_cpu_write(ulong_counter, 0);
+
+	ul -= ui_one;
+	__this_cpu_sub(ulong_counter, ui_one);
+	CHECK(ul, ulong_counter, -1);
+	CHECK(ul, ulong_counter, ULONG_MAX);
+
+	ul = 3;
+	__this_cpu_write(ulong_counter, 3);
+
+	ul = this_cpu_sub_return(ulong_counter, ui_one);
+	CHECK(ul, ulong_counter, 2);
+
+	ul = __this_cpu_sub_return(ulong_counter, ui_one);
+	CHECK(ul, ulong_counter, 1);
+
+	preempt_enable();
+
+	pr_info("percpu test done\n");
+	return -EAGAIN;  /* Fail will directly unload the module */
+}
+
+static void __exit percpu_test_exit(void)
+{
+}
+
+module_init(percpu_test_init)
+module_exit(percpu_test_exit)
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Greg Thelen");
+MODULE_DESCRIPTION("percpu operations test");
-- 
cgit 


From 54886a7153353ea2bf21ebfc1b8e030e71d151d7 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Tue, 12 Nov 2013 15:08:35 -0800
Subject: cramfs: mark as obsolete

Who needs cramfs when you have squashfs?  At least, we should warn people
that cramfs is obsolete.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 MAINTAINERS       | 2 +-
 fs/cramfs/Kconfig | 5 ++++-
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 051e4dc5b70f..f5867f469f13 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2373,7 +2373,7 @@ F:	kernel/cpuset.c
 
 CRAMFS FILESYSTEM
 W:	http://sourceforge.net/projects/cramfs/
-S:	Orphan
+S:	Orphan / Obsolete
 F:	Documentation/filesystems/cramfs.txt
 F:	fs/cramfs/
 
diff --git a/fs/cramfs/Kconfig b/fs/cramfs/Kconfig
index cd06466f365e..11b29d491b7c 100644
--- a/fs/cramfs/Kconfig
+++ b/fs/cramfs/Kconfig
@@ -1,5 +1,5 @@
 config CRAMFS
-	tristate "Compressed ROM file system support (cramfs)"
+	tristate "Compressed ROM file system support (cramfs) (OBSOLETE)"
 	depends on BLOCK
 	select ZLIB_INFLATE
 	help
@@ -16,4 +16,7 @@ config CRAMFS
 	  cramfs.  Note that the root file system (the one containing the
 	  directory /) cannot be compiled as a module.
 
+	  This filesystem is obsoleted by SquashFS, which is much better
+	  in terms of performance and features.
+
 	  If unsure, say N.
-- 
cgit 


From 83460ec8dcac14142e7860a01fa59c267ac4657c Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Tue, 12 Nov 2013 15:08:36 -0800
Subject: syscalls.h: use gcc alias instead of assembler aliases for syscalls

Use standard gcc __attribute__((alias(foo))) to define the syscall aliases
instead of custom assembler macros.

This is far cleaner, and also fixes my LTO kernel build.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/compat.h   | 4 ++--
 include/linux/syscalls.h | 4 ++--
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/include/linux/compat.h b/include/linux/compat.h
index 345da00a86e0..ada34c92b684 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -41,14 +41,14 @@
 	COMPAT_SYSCALL_DEFINEx(6, _##name, __VA_ARGS__)
 
 #define COMPAT_SYSCALL_DEFINEx(x, name, ...)				\
-	asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
+	asmlinkage long compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))\
+		__attribute__((alias(__stringify(compat_SyS##name))));  \
 	static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));\
 	asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__));\
 	asmlinkage long compat_SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))\
 	{								\
 		return C_SYSC##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__));	\
 	}								\
-	SYSCALL_ALIAS(compat_sys##name, compat_SyS##name);		\
 	static inline long C_SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
 
 #ifndef compat_user_stack_pointer
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 7fac04e7ff6e..c27f846f6b71 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -184,7 +184,8 @@ extern struct trace_event_functions exit_syscall_print_funcs;
 
 #define __PROTECT(...) asmlinkage_protect(__VA_ARGS__)
 #define __SYSCALL_DEFINEx(x, name, ...)					\
-	asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));	\
+	asmlinkage long sys##name(__MAP(x,__SC_DECL,__VA_ARGS__))	\
+		__attribute__((alias(__stringify(SyS##name))));		\
 	static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__));	\
 	asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__));	\
 	asmlinkage long SyS##name(__MAP(x,__SC_LONG,__VA_ARGS__))	\
@@ -194,7 +195,6 @@ extern struct trace_event_functions exit_syscall_print_funcs;
 		__PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__));	\
 		return ret;						\
 	}								\
-	SYSCALL_ALIAS(sys##name, SyS##name);				\
 	static inline long SYSC##name(__MAP(x,__SC_DECL,__VA_ARGS__))
 
 asmlinkage long sys_time(time_t __user *tloc);
-- 
cgit 


From b5064654c538ad9a2eb1195d80e7593b2e1c1452 Mon Sep 17 00:00:00 2001
From: Andi Kleen <ak@linux.intel.com>
Date: Tue, 12 Nov 2013 15:08:38 -0800
Subject: scripts/mod/modpost.c: handle non ABS crc symbols

For some reason I managed to trick gcc into create CRC symbols that are
not absolute anymore, but weak.

Make modpost handle this case.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Al Viro <viro@ZenIV.linux.org.uk>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/mod/modpost.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 8247979e8f64..bfcea5d3b27d 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -599,18 +599,17 @@ static void handle_modversions(struct module *mod, struct elf_info *info,
 	else
 		export = export_from_sec(info, get_secindex(info, sym));
 
+	/* CRC'd symbol */
+	if (strncmp(symname, CRC_PFX, strlen(CRC_PFX)) == 0) {
+		crc = (unsigned int) sym->st_value;
+		sym_update_crc(symname + strlen(CRC_PFX), mod, crc,
+				export);
+	}
+
 	switch (sym->st_shndx) {
 	case SHN_COMMON:
 		warn("\"%s\" [%s] is COMMON symbol\n", symname, mod->name);
 		break;
-	case SHN_ABS:
-		/* CRC'd symbol */
-		if (strncmp(symname, CRC_PFX, strlen(CRC_PFX)) == 0) {
-			crc = (unsigned int) sym->st_value;
-			sym_update_crc(symname + strlen(CRC_PFX), mod, crc,
-					export);
-		}
-		break;
 	case SHN_UNDEF:
 		/* undefined symbol */
 		if (ELF_ST_BIND(sym->st_info) != STB_GLOBAL &&
-- 
cgit 


From 6c251611ce68d80e0067aab80a0a3b6bc652d5f5 Mon Sep 17 00:00:00 2001
From: Sebastian Capella <sebastian.capella@linaro.org>
Date: Tue, 12 Nov 2013 15:08:39 -0800
Subject: init/do_mounts.c: add maj:min syntax comment

The name_to_dev_t function has a comment block which lists the supported
syntaxes for the device name.  Add a bullet for the <major>:<minor>
syntax, which is already supported in the code

Signed-off-by: Sebastian Capella <sebastian.capella@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 init/do_mounts.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/init/do_mounts.c b/init/do_mounts.c
index a51cddc2ff8c..8e5addc45874 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -197,6 +197,8 @@ done:
  *	   is a zero-filled hex representation of the 1-based partition number.
  *	7) PARTUUID=<UUID>/PARTNROFF=<int> to select a partition in relation to
  *	   a partition with a known unique id.
+ *	8) <major>:<minor> major and minor number of the device separated by
+ *	   a colon.
  *
  *	If name doesn't have fall into the categories above, we return (0,0).
  *	block_class is used to check if something is a disk name. If the disk
-- 
cgit 


From 0ca43435188b9f911c8efcdf10731f726142dda1 Mon Sep 17 00:00:00 2001
From: Eric Sandeen <sandeen@redhat.com>
Date: Tue, 12 Nov 2013 15:08:40 -0800
Subject: errno.h: remove "NFS" from descriptions in comments

glibc recently changed the error string for ESTALE to remove "NFS" -

https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=96945714ec61951cc748da2b4b8a80cf02127ee9

from: [ERR_REMAP (ESTALE)] = N_("Stale NFS file handle"),
to:   [ERR_REMAP (ESTALE)] = N_("Stale file handle"),

And some have expressed concern that the kernel's errno.h
comments still refer to NFS.

So make that change... note that this is a comment-only change,
and has no functional difference.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/alpha/include/uapi/asm/errno.h                         | 2 +-
 arch/mips/include/uapi/asm/errno.h                          | 2 +-
 arch/parisc/include/uapi/asm/errno.h                        | 2 +-
 arch/sparc/include/uapi/asm/errno.h                         | 2 +-
 drivers/staging/lustre/lustre/include/lustre/lustre_errno.h | 2 +-
 include/uapi/asm-generic/errno.h                            | 2 +-
 6 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/alpha/include/uapi/asm/errno.h b/arch/alpha/include/uapi/asm/errno.h
index e5f29ca28180..17f92aa76b2f 100644
--- a/arch/alpha/include/uapi/asm/errno.h
+++ b/arch/alpha/include/uapi/asm/errno.h
@@ -43,7 +43,7 @@
 
 #define	EUSERS		68	/* Too many users */
 #define	EDQUOT		69	/* Quota exceeded */
-#define	ESTALE		70	/* Stale NFS file handle */
+#define	ESTALE		70	/* Stale file handle */
 #define	EREMOTE		71	/* Object is remote */
 
 #define	ENOLCK		77	/* No record locks available */
diff --git a/arch/mips/include/uapi/asm/errno.h b/arch/mips/include/uapi/asm/errno.h
index 31575e2fd1bd..02d645d7aa9a 100644
--- a/arch/mips/include/uapi/asm/errno.h
+++ b/arch/mips/include/uapi/asm/errno.h
@@ -102,7 +102,7 @@
 #define EWOULDBLOCK	EAGAIN	/* Operation would block */
 #define EALREADY	149	/* Operation already in progress */
 #define EINPROGRESS	150	/* Operation now in progress */
-#define ESTALE		151	/* Stale NFS file handle */
+#define ESTALE		151	/* Stale file handle */
 #define ECANCELED	158	/* AIO operation canceled */
 
 /*
diff --git a/arch/parisc/include/uapi/asm/errno.h b/arch/parisc/include/uapi/asm/errno.h
index 135ad6047e51..f3a8aa554841 100644
--- a/arch/parisc/include/uapi/asm/errno.h
+++ b/arch/parisc/include/uapi/asm/errno.h
@@ -37,7 +37,7 @@
 #define	EBADMSG		67	/* Not a data message */
 #define	EUSERS		68	/* Too many users */
 #define	EDQUOT		69	/* Quota exceeded */
-#define	ESTALE		70	/* Stale NFS file handle */
+#define	ESTALE		70	/* Stale file handle */
 #define	EREMOTE		71	/* Object is remote */
 #define	EOVERFLOW	72	/* Value too large for defined data type */
 
diff --git a/arch/sparc/include/uapi/asm/errno.h b/arch/sparc/include/uapi/asm/errno.h
index c351aba997b7..20423e172853 100644
--- a/arch/sparc/include/uapi/asm/errno.h
+++ b/arch/sparc/include/uapi/asm/errno.h
@@ -40,7 +40,7 @@
 #define EPROCLIM        67      /* SUNOS: Too many processes */
 #define	EUSERS		68	/* Too many users */
 #define	EDQUOT		69	/* Quota exceeded */
-#define	ESTALE		70	/* Stale NFS file handle */
+#define	ESTALE		70	/* Stale file handle */
 #define	EREMOTE		71	/* Object is remote */
 #define	ENOSTR		72	/* Device not a stream */
 #define	ETIME		73	/* Timer expired */
diff --git a/drivers/staging/lustre/lustre/include/lustre/lustre_errno.h b/drivers/staging/lustre/lustre/include/lustre/lustre_errno.h
index 2870487dd286..35aefa2cdad1 100644
--- a/drivers/staging/lustre/lustre/include/lustre/lustre_errno.h
+++ b/drivers/staging/lustre/lustre/include/lustre/lustre_errno.h
@@ -165,7 +165,7 @@
 #define LUSTRE_EHOSTUNREACH	113	/* No route to host */
 #define LUSTRE_EALREADY		114	/* Operation already in progress */
 #define LUSTRE_EINPROGRESS	115	/* Operation now in progress */
-#define LUSTRE_ESTALE		116	/* Stale NFS file handle */
+#define LUSTRE_ESTALE		116	/* Stale file handle */
 #define LUSTRE_EUCLEAN		117	/* Structure needs cleaning */
 #define LUSTRE_ENOTNAM		118	/* Not a XENIX named type file */
 #define LUSTRE_ENAVAIL		119	/* No XENIX semaphores available */
diff --git a/include/uapi/asm-generic/errno.h b/include/uapi/asm-generic/errno.h
index a1331ce50445..1e1ea6e6e7a5 100644
--- a/include/uapi/asm-generic/errno.h
+++ b/include/uapi/asm-generic/errno.h
@@ -86,7 +86,7 @@
 #define	EHOSTUNREACH	113	/* No route to host */
 #define	EALREADY	114	/* Operation already in progress */
 #define	EINPROGRESS	115	/* Operation now in progress */
-#define	ESTALE		116	/* Stale NFS file handle */
+#define	ESTALE		116	/* Stale file handle */
 #define	EUCLEAN		117	/* Structure needs cleaning */
 #define	ENOTNAM		118	/* Not a XENIX named type file */
 #define	ENAVAIL		119	/* No XENIX semaphores available */
-- 
cgit 


From c725ee54c30b34427cb8fa68d1fe8804aca6d400 Mon Sep 17 00:00:00 2001
From: Michal Nazarewicz <mina86@mina86.com>
Date: Tue, 12 Nov 2013 15:08:41 -0800
Subject: gen_init_cpio: avoid NULL pointer dereference and rework env
 expanding

getenv() may return NULL if given environment variable does not exist
which leads to NULL dereference when calling strncat.

Besides that, the environment variable name was copied to a temporary
env_var buffer, but this copying can be avoided by simply using the input
string.

Lastly, the whole loop can be greatly simplified by using the snprintf
function instead of the playing with strncat.

 By the way, the current implementation allows a recursive variable
 expansion, as in:

   $ echo 'out ${A} out ' | A='a ${B} a' B=b /tmp/a
   out a b a out

 I'm assuming this is just a side effect and not a conscious decision
 (especially as this may lead to infinite loop), but I didn't want to
 change this behaviour without consulting.

 If the current behaviour is deamed incorrect, I'll be happy to send
 a patch without recursive processing.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Jesper Juhl <jj@codesealer.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 usr/gen_init_cpio.c | 27 +++++++++------------------
 1 file changed, 9 insertions(+), 18 deletions(-)

diff --git a/usr/gen_init_cpio.c b/usr/gen_init_cpio.c
index af8c925e93eb..225ad244cf88 100644
--- a/usr/gen_init_cpio.c
+++ b/usr/gen_init_cpio.c
@@ -382,24 +382,15 @@ error:
 static char *cpio_replace_env(char *new_location)
 {
 	char expanded[PATH_MAX + 1];
-	char env_var[PATH_MAX + 1];
-	char *start;
-	char *end;
-
-	for (start = NULL; (start = strstr(new_location, "${")); ) {
-		end = strchr(start, '}');
-		if (start < end) {
-			*env_var = *expanded = '\0';
-			strncat(env_var, start + 2, end - start - 2);
-			strncat(expanded, new_location, start - new_location);
-			strncat(expanded, getenv(env_var),
-				PATH_MAX - strlen(expanded));
-			strncat(expanded, end + 1,
-				PATH_MAX - strlen(expanded));
-			strncpy(new_location, expanded, PATH_MAX);
-			new_location[PATH_MAX] = 0;
-		} else
-			break;
+	char *start, *end, *var;
+
+	while ((start = strstr(new_location, "${")) &&
+	       (end = strchr(start + 2, '}'))) {
+		*start = *end = 0;
+		var = getenv(start + 2);
+		snprintf(expanded, sizeof expanded, "%s%s%s",
+			 new_location, var ? var : "", end + 1);
+		strcpy(new_location, expanded);
 	}
 
 	return new_location;
-- 
cgit 


From 324d666a5378946dd271c71036792235ef360204 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Tue, 12 Nov 2013 15:08:42 -0800
Subject: kernel/delayacct.c: remove redundant checking in
 __delayacct_add_tsk()

The wrapper function delayacct_add_tsk() already checked 'tsk->delays',
and __delayacct_add_tsk() has no another direct callers, so can remove the
redundancy checking code.

And the label 'done' is also useless, so remove it, too.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/delayacct.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/kernel/delayacct.c b/kernel/delayacct.c
index d473988c1d0b..54996b71e66d 100644
--- a/kernel/delayacct.c
+++ b/kernel/delayacct.c
@@ -108,12 +108,6 @@ int __delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk)
 	struct timespec ts;
 	cputime_t utime, stime, stimescaled, utimescaled;
 
-	/* Though tsk->delays accessed later, early exit avoids
-	 * unnecessary returning of other data
-	 */
-	if (!tsk->delays)
-		goto done;
-
 	tmp = (s64)d->cpu_run_real_total;
 	task_cputime(tsk, &utime, &stime);
 	cputime_to_timespec(utime + stime, &ts);
@@ -158,7 +152,6 @@ int __delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk)
 	d->freepages_count += tsk->delays->freepages_count;
 	spin_unlock_irqrestore(&tsk->delays->lock, flags);
 
-done:
 	return 0;
 }
 
-- 
cgit 


From 81e41ea25b52ca8175ceb209438f14182a600d6d Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Tue, 12 Nov 2013 15:08:43 -0800
Subject: kernel/sys.c: remove obsolete #include <linux/kexec.h>

Commit 15d94b82565e ("reboot: move shutdown/reboot related functions to
kernel/reboot.c") moved all kexec-related functionality to
kernel/reboot.c, so kernel/sys.c no longer needs to include
<linux/kexec.h>.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Robin Holt <holt@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/sys.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/kernel/sys.c b/kernel/sys.c
index c18ecca575b4..c72311324ea7 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -16,7 +16,6 @@
 #include <linux/perf_event.h>
 #include <linux/resource.h>
 #include <linux/kernel.h>
-#include <linux/kexec.h>
 #include <linux/workqueue.h>
 #include <linux/capability.h>
 #include <linux/device.h>
-- 
cgit 


From 261adc9a609dbfde815337889b9e2c8728959ab8 Mon Sep 17 00:00:00 2001
From: Roel Kluin <roel.kluin@gmail.com>
Date: Tue, 12 Nov 2013 15:08:44 -0800
Subject: jump_label: unlikely(x) > 0

if (unlikely(x) > 0) doesn't seem to help branch prediction

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: "H. Peter Anvin" <hpa@linux.intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/jump_label.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h
index a5079072da66..cf08540d6204 100644
--- a/include/linux/jump_label.h
+++ b/include/linux/jump_label.h
@@ -132,14 +132,14 @@ static __always_inline void jump_label_init(void)
 
 static __always_inline bool static_key_false(struct static_key *key)
 {
-	if (unlikely(atomic_read(&key->enabled)) > 0)
+	if (unlikely(atomic_read(&key->enabled) > 0))
 		return true;
 	return false;
 }
 
 static __always_inline bool static_key_true(struct static_key *key)
 {
-	if (likely(atomic_read(&key->enabled)) > 0)
+	if (likely(atomic_read(&key->enabled) > 0))
 		return true;
 	return false;
 }
-- 
cgit 


From 616c05d110bb4ef8203f49c9d2476874077c2f6a Mon Sep 17 00:00:00 2001
From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Date: Tue, 12 Nov 2013 15:08:45 -0800
Subject: sh: move fpu_counter into ARCH specific thread_struct

Only a couple of arches (sh/x86) use fpu_counter in task_struct so it can
be moved out into ARCH specific thread_struct, reducing the size of
task_struct for other arches.

Compile tested sh defconfig + sh4-linux-gcc (4.6.3)

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Paul Mundt <paul.mundt@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/sh/include/asm/fpu.h          |  2 +-
 arch/sh/include/asm/processor_32.h | 10 ++++++++++
 arch/sh/include/asm/processor_64.h | 10 ++++++++++
 arch/sh/kernel/cpu/fpu.c           |  2 +-
 arch/sh/kernel/process_32.c        |  6 +++---
 5 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/arch/sh/include/asm/fpu.h b/arch/sh/include/asm/fpu.h
index 06c4281aab65..09fc2bc8a790 100644
--- a/arch/sh/include/asm/fpu.h
+++ b/arch/sh/include/asm/fpu.h
@@ -46,7 +46,7 @@ static inline void __unlazy_fpu(struct task_struct *tsk, struct pt_regs *regs)
 		save_fpu(tsk);
 		release_fpu(regs);
 	} else
-		tsk->fpu_counter = 0;
+		tsk->thread.fpu_counter = 0;
 }
 
 static inline void unlazy_fpu(struct task_struct *tsk, struct pt_regs *regs)
diff --git a/arch/sh/include/asm/processor_32.h b/arch/sh/include/asm/processor_32.h
index e699a12cdcca..18e0377f72bb 100644
--- a/arch/sh/include/asm/processor_32.h
+++ b/arch/sh/include/asm/processor_32.h
@@ -111,6 +111,16 @@ struct thread_struct {
 
 	/* Extended processor state */
 	union thread_xstate *xstate;
+
+	/*
+	 * fpu_counter contains the number of consecutive context switches
+	 * that the FPU is used. If this is over a threshold, the lazy fpu
+	 * saving becomes unlazy to save the trap. This is an unsigned char
+	 * so that after 256 times the counter wraps and the behavior turns
+	 * lazy again; this to deal with bursty apps that only use FPU for
+	 * a short time
+	 */
+	unsigned char fpu_counter;
 };
 
 #define INIT_THREAD  {						\
diff --git a/arch/sh/include/asm/processor_64.h b/arch/sh/include/asm/processor_64.h
index 1cc7d3197143..eedd4f625d07 100644
--- a/arch/sh/include/asm/processor_64.h
+++ b/arch/sh/include/asm/processor_64.h
@@ -126,6 +126,16 @@ struct thread_struct {
 
 	/* floating point info */
 	union thread_xstate *xstate;
+
+	/*
+	 * fpu_counter contains the number of consecutive context switches
+	 * that the FPU is used. If this is over a threshold, the lazy fpu
+	 * saving becomes unlazy to save the trap. This is an unsigned char
+	 * so that after 256 times the counter wraps and the behavior turns
+	 * lazy again; this to deal with bursty apps that only use FPU for
+	 * a short time
+	 */
+	unsigned char fpu_counter;
 };
 
 #define INIT_MMAP \
diff --git a/arch/sh/kernel/cpu/fpu.c b/arch/sh/kernel/cpu/fpu.c
index f8f7af51c128..4e332244ea75 100644
--- a/arch/sh/kernel/cpu/fpu.c
+++ b/arch/sh/kernel/cpu/fpu.c
@@ -44,7 +44,7 @@ void __fpu_state_restore(void)
 	restore_fpu(tsk);
 
 	task_thread_info(tsk)->status |= TS_USEDFPU;
-	tsk->fpu_counter++;
+	tsk->thread.fpu_counter++;
 }
 
 void fpu_state_restore(struct pt_regs *regs)
diff --git a/arch/sh/kernel/process_32.c b/arch/sh/kernel/process_32.c
index ebd3933005b4..2885fc9d9dcd 100644
--- a/arch/sh/kernel/process_32.c
+++ b/arch/sh/kernel/process_32.c
@@ -156,7 +156,7 @@ int copy_thread(unsigned long clone_flags, unsigned long usp,
 #endif
 		ti->addr_limit = KERNEL_DS;
 		ti->status &= ~TS_USEDFPU;
-		p->fpu_counter = 0;
+		p->thread.fpu_counter = 0;
 		return 0;
 	}
 	*childregs = *current_pt_regs();
@@ -189,7 +189,7 @@ __switch_to(struct task_struct *prev, struct task_struct *next)
 	unlazy_fpu(prev, task_pt_regs(prev));
 
 	/* we're going to use this soon, after a few expensive things */
-	if (next->fpu_counter > 5)
+	if (next->thread.fpu_counter > 5)
 		prefetch(next_t->xstate);
 
 #ifdef CONFIG_MMU
@@ -207,7 +207,7 @@ __switch_to(struct task_struct *prev, struct task_struct *next)
 	 * restore of the math state immediately to avoid the trap; the
 	 * chances of needing FPU soon are obviously high now
 	 */
-	if (next->fpu_counter > 5)
+	if (next->thread.fpu_counter > 5)
 		__fpu_state_restore();
 
 	return prev;
-- 
cgit 


From c375f15a434db1867cb004bafba92aba739e4e39 Mon Sep 17 00:00:00 2001
From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Date: Tue, 12 Nov 2013 15:08:46 -0800
Subject: x86: move fpu_counter into ARCH specific thread_struct

Only a couple of arches (sh/x86) use fpu_counter in task_struct so it can
be moved out into ARCH specific thread_struct, reducing the size of
task_struct for other arches.

Compile tested i386_defconfig + gcc 4.7.3

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mundt <paul.mundt@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/x86/include/asm/fpu-internal.h | 10 +++++-----
 arch/x86/include/asm/processor.h    |  9 +++++++++
 arch/x86/kernel/i387.c              |  2 +-
 arch/x86/kernel/process_32.c        |  4 ++--
 arch/x86/kernel/process_64.c        |  2 +-
 arch/x86/kernel/traps.c             |  2 +-
 6 files changed, 19 insertions(+), 10 deletions(-)

diff --git a/arch/x86/include/asm/fpu-internal.h b/arch/x86/include/asm/fpu-internal.h
index 4d0bda7b11e3..c49a613c6452 100644
--- a/arch/x86/include/asm/fpu-internal.h
+++ b/arch/x86/include/asm/fpu-internal.h
@@ -365,7 +365,7 @@ static inline void drop_fpu(struct task_struct *tsk)
 	 * Forget coprocessor state..
 	 */
 	preempt_disable();
-	tsk->fpu_counter = 0;
+	tsk->thread.fpu_counter = 0;
 	__drop_fpu(tsk);
 	clear_used_math();
 	preempt_enable();
@@ -424,7 +424,7 @@ static inline fpu_switch_t switch_fpu_prepare(struct task_struct *old, struct ta
 	 * or if the past 5 consecutive context-switches used math.
 	 */
 	fpu.preload = tsk_used_math(new) && (use_eager_fpu() ||
-					     new->fpu_counter > 5);
+					     new->thread.fpu_counter > 5);
 	if (__thread_has_fpu(old)) {
 		if (!__save_init_fpu(old))
 			cpu = ~0;
@@ -433,16 +433,16 @@ static inline fpu_switch_t switch_fpu_prepare(struct task_struct *old, struct ta
 
 		/* Don't change CR0.TS if we just switch! */
 		if (fpu.preload) {
-			new->fpu_counter++;
+			new->thread.fpu_counter++;
 			__thread_set_has_fpu(new);
 			prefetch(new->thread.fpu.state);
 		} else if (!use_eager_fpu())
 			stts();
 	} else {
-		old->fpu_counter = 0;
+		old->thread.fpu_counter = 0;
 		old->thread.fpu.last_cpu = ~0;
 		if (fpu.preload) {
-			new->fpu_counter++;
+			new->thread.fpu_counter++;
 			if (!use_eager_fpu() && fpu_lazy_restore(new, cpu))
 				fpu.preload = 0;
 			else
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 987c75ecc334..7b034a4057f9 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -488,6 +488,15 @@ struct thread_struct {
 	unsigned long		iopl;
 	/* Max allowed port in the bitmap, in bytes: */
 	unsigned		io_bitmap_max;
+	/*
+	 * fpu_counter contains the number of consecutive context switches
+	 * that the FPU is used. If this is over a threshold, the lazy fpu
+	 * saving becomes unlazy to save the trap. This is an unsigned char
+	 * so that after 256 times the counter wraps and the behavior turns
+	 * lazy again; this to deal with bursty apps that only use FPU for
+	 * a short time
+	 */
+	unsigned char fpu_counter;
 };
 
 /*
diff --git a/arch/x86/kernel/i387.c b/arch/x86/kernel/i387.c
index 5d576ab34403..e8368c6dd2a2 100644
--- a/arch/x86/kernel/i387.c
+++ b/arch/x86/kernel/i387.c
@@ -100,7 +100,7 @@ void unlazy_fpu(struct task_struct *tsk)
 		__save_init_fpu(tsk);
 		__thread_fpu_end(tsk);
 	} else
-		tsk->fpu_counter = 0;
+		tsk->thread.fpu_counter = 0;
 	preempt_enable();
 }
 EXPORT_SYMBOL(unlazy_fpu);
diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c
index c2ec1aa6d454..6f1236c29c4b 100644
--- a/arch/x86/kernel/process_32.c
+++ b/arch/x86/kernel/process_32.c
@@ -153,7 +153,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
 		childregs->orig_ax = -1;
 		childregs->cs = __KERNEL_CS | get_kernel_rpl();
 		childregs->flags = X86_EFLAGS_IF | X86_EFLAGS_FIXED;
-		p->fpu_counter = 0;
+		p->thread.fpu_counter = 0;
 		p->thread.io_bitmap_ptr = NULL;
 		memset(p->thread.ptrace_bps, 0, sizeof(p->thread.ptrace_bps));
 		return 0;
@@ -166,7 +166,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
 	p->thread.ip = (unsigned long) ret_from_fork;
 	task_user_gs(p) = get_user_gs(current_pt_regs());
 
-	p->fpu_counter = 0;
+	p->thread.fpu_counter = 0;
 	p->thread.io_bitmap_ptr = NULL;
 	tsk = current;
 	err = -ENOMEM;
diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c
index 45ab4d6fc8a7..10fe4c189621 100644
--- a/arch/x86/kernel/process_64.c
+++ b/arch/x86/kernel/process_64.c
@@ -163,7 +163,7 @@ int copy_thread(unsigned long clone_flags, unsigned long sp,
 	p->thread.sp = (unsigned long) childregs;
 	p->thread.usersp = me->thread.usersp;
 	set_tsk_thread_flag(p, TIF_FORK);
-	p->fpu_counter = 0;
+	p->thread.fpu_counter = 0;
 	p->thread.io_bitmap_ptr = NULL;
 
 	savesegment(gs, p->thread.gsindex);
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 729aa779ff75..996ce2313ce6 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -653,7 +653,7 @@ void math_state_restore(void)
 		return;
 	}
 
-	tsk->fpu_counter++;
+	tsk->thread.fpu_counter++;
 }
 EXPORT_SYMBOL_GPL(math_state_restore);
 
-- 
cgit 


From 27f69e68a5e534412faebc53a4e04acc9ce7fd7e Mon Sep 17 00:00:00 2001
From: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Date: Tue, 12 Nov 2013 15:08:47 -0800
Subject: sched: remove ARCH specific fpu_counter from task_struct

fpu_counter in task_struct was used only by sh/x86.  Both of these now
carry it in ARCH specific thread_struct, hence this can now be removed
from generic task_struct, shrinking it slightly for other arches.

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Paul Mundt <paul.mundt@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/sched.h | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index 045b0d227846..5e226fe3e512 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -1062,15 +1062,6 @@ struct task_struct {
 	struct hlist_head preempt_notifiers;
 #endif
 
-	/*
-	 * fpu_counter contains the number of consecutive context switches
-	 * that the FPU is used. If this is over a threshold, the lazy fpu
-	 * saving becomes unlazy to save the trap. This is an unsigned char
-	 * so that after 256 times the counter wraps and the behavior turns
-	 * lazy again; this to deal with bursty apps that only use FPU for
-	 * a short time
-	 */
-	unsigned char fpu_counter;
 #ifdef CONFIG_BLK_DEV_IO_TRACE
 	unsigned int btrace_seq;
 #endif
-- 
cgit 


From 8f6b2ae49a84841c4bcf00cff35752b223c3f8d6 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Tue, 12 Nov 2013 15:08:48 -0800
Subject: init/main.c: remove prototype for softirq_init()

It's already available in <linux/interrupt.h>

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 init/main.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/init/main.c b/init/main.c
index 379090fadac9..aa061ef17626 100644
--- a/init/main.c
+++ b/init/main.c
@@ -124,7 +124,6 @@ EXPORT_SYMBOL(system_state);
 extern void time_init(void);
 /* Default late time init is NULL. archs can override this later. */
 void (*__initdata late_time_init)(void);
-extern void softirq_init(void);
 
 /* Untouched command line saved by arch-specific code. */
 char __initdata boot_command_line[COMMAND_LINE_SIZE];
-- 
cgit 


From 6b80239447f6785b719345e8913af420d8ec0818 Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Tue, 12 Nov 2013 15:08:49 -0800
Subject: printk: report console names during cut-over

This reports the names of consoles as they're being disabled to help
identify which is which during cut-over.  Helps answer the question
"which boot console actually got activated?" once the regular console is
running, mostly when debugging boot console failures.

Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Joe Perches <joe@perches.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/printk/printk.c | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index b4e8500afdb3..555ad2d445b4 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -2358,21 +2358,18 @@ void register_console(struct console *newcon)
 	 * users know there might be something in the kernel's log buffer that
 	 * went to the bootconsole (that they do not see on the real console)
 	 */
+	printk(KERN_INFO "%sconsole [%s%d] enabled\n",
+		(newcon->flags & CON_BOOT) ? "boot" : "" ,
+		newcon->name, newcon->index);
 	if (bcon &&
 	    ((newcon->flags & (CON_CONSDEV | CON_BOOT)) == CON_CONSDEV) &&
 	    !keep_bootcon) {
-		/* we need to iterate through twice, to make sure we print
-		 * everything out, before we unregister the console(s)
+		/* We need to iterate through all boot consoles, to make
+		 * sure we print everything out, before we unregister them.
 		 */
-		printk(KERN_INFO "console [%s%d] enabled, bootconsole disabled\n",
-			newcon->name, newcon->index);
 		for_each_console(bcon)
 			if (bcon->flags & CON_BOOT)
 				unregister_console(bcon);
-	} else {
-		printk(KERN_INFO "%sconsole [%s%d] enabled\n",
-			(newcon->flags & CON_BOOT) ? "boot" : "" ,
-			newcon->name, newcon->index);
 	}
 }
 EXPORT_SYMBOL(register_console);
@@ -2382,6 +2379,10 @@ int unregister_console(struct console *console)
         struct console *a, *b;
 	int res;
 
+	printk(KERN_INFO "%sconsole [%s%d] disabled\n",
+		(console->flags & CON_BOOT) ? "boot" : "" ,
+		console->name, console->index);
+
 	res = _braille_unregister_console(console);
 	if (res)
 		return res;
@@ -2421,8 +2422,6 @@ static int __init printk_late_init(void)
 
 	for_each_console(con) {
 		if (!keep_bootcon && con->flags & CON_BOOT) {
-			printk(KERN_INFO "turn off boot console %s%d\n",
-				con->name, con->index);
 			unregister_console(con);
 		}
 	}
-- 
cgit 


From 27083baca51358fe0fba8cf40b7df9bb696c931a Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Tue, 12 Nov 2013 15:08:50 -0800
Subject: kernel/printk/printk.c: convert to pr_foo()

It was half-and-half.

Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Joe Perches <joe@perches.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/printk/printk.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 555ad2d445b4..78b7c0f38259 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -791,7 +791,7 @@ static bool __read_mostly ignore_loglevel;
 static int __init ignore_loglevel_setup(char *str)
 {
 	ignore_loglevel = 1;
-	printk(KERN_INFO "debug: ignoring loglevel setting.\n");
+	pr_info("debug: ignoring loglevel setting.\n");
 
 	return 0;
 }
@@ -2193,7 +2193,7 @@ static int __read_mostly keep_bootcon;
 static int __init keep_bootcon_setup(char *str)
 {
 	keep_bootcon = 1;
-	printk(KERN_INFO "debug: skip boot console de-registration.\n");
+	pr_info("debug: skip boot console de-registration.\n");
 
 	return 0;
 }
@@ -2241,7 +2241,7 @@ void register_console(struct console *newcon)
 		/* find the last or real console */
 		for_each_console(bcon) {
 			if (!(bcon->flags & CON_BOOT)) {
-				printk(KERN_INFO "Too late to register bootconsole %s%d\n",
+				pr_info("Too late to register bootconsole %s%d\n",
 					newcon->name, newcon->index);
 				return;
 			}
@@ -2358,7 +2358,7 @@ void register_console(struct console *newcon)
 	 * users know there might be something in the kernel's log buffer that
 	 * went to the bootconsole (that they do not see on the real console)
 	 */
-	printk(KERN_INFO "%sconsole [%s%d] enabled\n",
+	pr_info("%sconsole [%s%d] enabled\n",
 		(newcon->flags & CON_BOOT) ? "boot" : "" ,
 		newcon->name, newcon->index);
 	if (bcon &&
@@ -2379,7 +2379,7 @@ int unregister_console(struct console *console)
         struct console *a, *b;
 	int res;
 
-	printk(KERN_INFO "%sconsole [%s%d] disabled\n",
+	pr_info("%sconsole [%s%d] disabled\n",
 		(console->flags & CON_BOOT) ? "boot" : "" ,
 		console->name, console->index);
 
@@ -2448,7 +2448,7 @@ static void wake_up_klogd_work_func(struct irq_work *irq_work)
 
 	if (pending & PRINTK_PENDING_SCHED) {
 		char *buf = __get_cpu_var(printk_sched_buf);
-		printk(KERN_WARNING "[sched_delayed] %s", buf);
+		pr_warn("[sched_delayed] %s", buf);
 	}
 
 	if (pending & PRINTK_PENDING_WAKEUP)
-- 
cgit 


From 312b4e226951f707e120b95b118cbc14f3d162b2 Mon Sep 17 00:00:00 2001
From: Ryan Mallon <rmallon@gmail.com>
Date: Tue, 12 Nov 2013 15:08:51 -0800
Subject: vsprintf: check real user/group id for %pK

Some setuid binaries will allow reading of files which have read
permission by the real user id.  This is problematic with files which
use %pK because the file access permission is checked at open() time,
but the kptr_restrict setting is checked at read() time.  If a setuid
binary opens a %pK file as an unprivileged user, and then elevates
permissions before reading the file, then kernel pointer values may be
leaked.

This happens for example with the setuid pppd application on Ubuntu 12.04:

  $ head -1 /proc/kallsyms
  00000000 T startup_32

  $ pppd file /proc/kallsyms
  pppd: In file /proc/kallsyms: unrecognized option 'c1000000'

This will only leak the pointer value from the first line, but other
setuid binaries may leak more information.

Fix this by adding a check that in addition to the current process having
CAP_SYSLOG, that effective user and group ids are equal to the real ids.
If a setuid binary reads the contents of a file which uses %pK then the
pointer values will be printed as NULL if the real user is unprivileged.

Update the sysctl documentation to reflect the changes, and also correct
the documentation to state the kptr_restrict=0 is the default.

This is a only temporary solution to the issue.  The correct solution is
to do the permission check at open() time on files, and to replace %pK
with a function which checks the open() time permission.  %pK uses in
printk should be removed since no sane permission check can be done, and
instead protected by using dmesg_restrict.

Signed-off-by: Ryan Mallon <rmallon@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Joe Perches <joe@perches.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Documentation/sysctl/kernel.txt | 25 ++++++++++++++++++-------
 lib/vsprintf.c                  | 33 ++++++++++++++++++++++++++++++---
 2 files changed, 48 insertions(+), 10 deletions(-)

diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt
index 4273b2d71a27..26b7ee491df8 100644
--- a/Documentation/sysctl/kernel.txt
+++ b/Documentation/sysctl/kernel.txt
@@ -290,13 +290,24 @@ Default value is "/sbin/hotplug".
 kptr_restrict:
 
 This toggle indicates whether restrictions are placed on
-exposing kernel addresses via /proc and other interfaces.  When
-kptr_restrict is set to (0), there are no restrictions.  When
-kptr_restrict is set to (1), the default, kernel pointers
-printed using the %pK format specifier will be replaced with 0's
-unless the user has CAP_SYSLOG.  When kptr_restrict is set to
-(2), kernel pointers printed using %pK will be replaced with 0's
-regardless of privileges.
+exposing kernel addresses via /proc and other interfaces.
+
+When kptr_restrict is set to (0), the default, there are no restrictions.
+
+When kptr_restrict is set to (1), kernel pointers printed using the %pK
+format specifier will be replaced with 0's unless the user has CAP_SYSLOG
+and effective user and group ids are equal to the real ids. This is
+because %pK checks are done at read() time rather than open() time, so
+if permissions are elevated between the open() and the read() (e.g via
+a setuid binary) then %pK will not leak kernel pointers to unprivileged
+users. Note, this is a temporary solution only. The correct long-term
+solution is to do the permission checks at open() time. Consider removing
+world read permissions from files that use %pK, and using dmesg_restrict
+to protect against uses of %pK in dmesg(8) if leaking kernel pointer
+values to unprivileged users is a concern.
+
+When kptr_restrict is set to (2), kernel pointers printed using
+%pK will be replaced with 0's regardless of privileges.
 
 ==============================================================
 
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 26559bdb4c49..d76555c45ff4 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -27,6 +27,7 @@
 #include <linux/uaccess.h>
 #include <linux/ioport.h>
 #include <linux/dcache.h>
+#include <linux/cred.h>
 #include <net/addrconf.h>
 
 #include <asm/page.h>		/* for PAGE_SIZE */
@@ -1312,11 +1313,37 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
 				spec.field_width = default_width;
 			return string(buf, end, "pK-error", spec);
 		}
-		if (!((kptr_restrict == 0) ||
-		      (kptr_restrict == 1 &&
-		       has_capability_noaudit(current, CAP_SYSLOG))))
+
+		switch (kptr_restrict) {
+		case 0:
+			/* Always print %pK values */
+			break;
+		case 1: {
+			/*
+			 * Only print the real pointer value if the current
+			 * process has CAP_SYSLOG and is running with the
+			 * same credentials it started with. This is because
+			 * access to files is checked at open() time, but %pK
+			 * checks permission at read() time. We don't want to
+			 * leak pointer values if a binary opens a file using
+			 * %pK and then elevates privileges before reading it.
+			 */
+			const struct cred *cred = current_cred();
+
+			if (!has_capability_noaudit(current, CAP_SYSLOG) ||
+			    !uid_eq(cred->euid, cred->uid) ||
+			    !gid_eq(cred->egid, cred->gid))
+				ptr = NULL;
+			break;
+		}
+		case 2:
+		default:
+			/* Always print 0's for %pK */
 			ptr = NULL;
+			break;
+		}
 		break;
+
 	case 'N':
 		switch (fmt[1]) {
 		case 'F':
-- 
cgit 


From 29e9d22559065af169bba6f99166eb9ab64c01c6 Mon Sep 17 00:00:00 2001
From: Dave Young <dyoung@redhat.com>
Date: Tue, 12 Nov 2013 15:08:53 -0800
Subject: kernel/printk/printk.c: enable boot delay for earlyprintk

boot_delay does not work for earlyprintk because the kernel cmdline
parsing is late.

Change to use early_param so early kernel messages can also be delayed.

Signed-off-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/printk/printk.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 78b7c0f38259..9b527d41f8f1 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -820,9 +820,9 @@ static int __init boot_delay_setup(char *str)
 	pr_debug("boot_delay: %u, preset_lpj: %ld, lpj: %lu, "
 		"HZ: %d, loops_per_msec: %llu\n",
 		boot_delay, preset_lpj, lpj, HZ, loops_per_msec);
-	return 1;
+	return 0;
 }
-__setup("boot_delay=", boot_delay_setup);
+early_param("boot_delay", boot_delay_setup);
 
 static void boot_delay_msec(int level)
 {
-- 
cgit 


From 4c1ace6408c83797117621f4c324dfa76259d16e Mon Sep 17 00:00:00 2001
From: Dirk Gouders <dirk@gouders.net>
Date: Tue, 12 Nov 2013 15:08:54 -0800
Subject: printk.c: comments should refer to /proc/vmcore instead of
 /proc/vmcoreinfo

In one of those comments a typo was fixed, too.

Signed-off-by: Dirk Gouders <dirk@gouders.net>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/printk/printk.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index 9b527d41f8f1..be7c86bae576 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -705,9 +705,9 @@ const struct file_operations kmsg_fops = {
 
 #ifdef CONFIG_KEXEC
 /*
- * This appends the listed symbols to /proc/vmcoreinfo
+ * This appends the listed symbols to /proc/vmcore
  *
- * /proc/vmcoreinfo is used by various utiilties, like crash and makedumpfile to
+ * /proc/vmcore is used by various utilities, like crash and makedumpfile to
  * obtain access to symbols that are otherwise very difficult to locate.  These
  * symbols are specifically used so that utilities can access and extract the
  * dmesg log from a vmcore file after a crash.
-- 
cgit 


From 07eb6597c059d9276c8dc7cd0401083ed66ad714 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:08:55 -0800
Subject: MAINTAINERS: remove Richard Purdie as backlight maintainer

Remove Richard Purdie as backlight subsystem maintainer,

akpm: Richard is still responsive and is reviewing some of the patches,
but appears to agree that listing him as the maintainer is no longer
appropriate.

[akpm@linux-foundation.org: s/USA/UK/]
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 CREDITS     | 5 +++++
 MAINTAINERS | 1 -
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/CREDITS b/CREDITS
index b928516eea90..dc04d8f80a89 100644
--- a/CREDITS
+++ b/CREDITS
@@ -2895,6 +2895,11 @@ S: Framewood Road
 S: Wexham SL3 6PJ
 S: United Kingdom
 
+N: Richard Purdie
+E: rpurdie@rpsys.net
+D: Backlight subsystem maintainer
+S: United Kingdom
+
 N: Daniel Quinlan
 E: quinlan@pathname.com
 W: http://www.pathname.com/~quinlan/
diff --git a/MAINTAINERS b/MAINTAINERS
index f5867f469f13..30c1e3913cb3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1661,7 +1661,6 @@ S:	Maintained
 F:	drivers/net/wireless/b43legacy/
 
 BACKLIGHT CLASS/SUBSYSTEM
-M:	Richard Purdie <rpurdie@rpsys.net>
 M:	Jingoo Han <jg1.han@samsung.com>
 S:	Maintained
 F:	drivers/video/backlight/
-- 
cgit 


From b300645aec9a5d71f6d85d5138215a9d6d7fe5e6 Mon Sep 17 00:00:00 2001
From: Jean Delvare <jdelvare@suse.de>
Date: Tue, 12 Nov 2013 15:08:56 -0800
Subject: MAINTAINERS: update Zwane Mwaikambo's e-mail address

Zwane Mwaikambo's @arm.linux.org.uk address no longer works.  In February
2013 he asked for his gmail address to be used instead [1] so let's just
do that.

[1] http://marc.info/?l=linux-kernel&m=136079068903214&w=2

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Zwane Mwaikambo <zwanem@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 CREDITS                       | 2 +-
 Documentation/cpu-hotplug.txt | 2 +-
 MAINTAINERS                   | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/CREDITS b/CREDITS
index dc04d8f80a89..4fc997d58ab2 100644
--- a/CREDITS
+++ b/CREDITS
@@ -2576,7 +2576,7 @@ S: Toronto, Ontario
 S: Canada
 
 N: Zwane Mwaikambo
-E: zwane@arm.linux.org.uk
+E: zwanem@gmail.com
 D: Various driver hacking
 D: Lowlevel x86 kernel hacking
 D: General debugging
diff --git a/Documentation/cpu-hotplug.txt b/Documentation/cpu-hotplug.txt
index 786dc82f98ce..8cb9938cc47e 100644
--- a/Documentation/cpu-hotplug.txt
+++ b/Documentation/cpu-hotplug.txt
@@ -5,7 +5,7 @@
 			Rusty Russell <rusty@rustcorp.com.au>
 			Srivatsa Vaddagiri <vatsa@in.ibm.com>
 		i386:
-			Zwane Mwaikambo <zwane@arm.linux.org.uk>
+			Zwane Mwaikambo <zwanem@gmail.com>
 		ppc64:
 			Nathan Lynch <nathanl@austin.ibm.com>
 			Joel Schopp <jschopp@austin.ibm.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 30c1e3913cb3..5cfa91b1974a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -7319,7 +7319,7 @@ S:	Odd Fixes
 F:	drivers/media/usb/tlg2300/
 
 SC1200 WDT DRIVER
-M:	Zwane Mwaikambo <zwane@arm.linux.org.uk>
+M:	Zwane Mwaikambo <zwanem@gmail.com>
 S:	Maintained
 F:	drivers/watchdog/sc1200wdt.c
 
-- 
cgit 


From 5812c13a4e636da4bd7f7cabbbbc59d9dbf3c86c Mon Sep 17 00:00:00 2001
From: Milo Kim <milo.kim@ti.com>
Date: Tue, 12 Nov 2013 15:08:57 -0800
Subject: backlight: lp855x_bl: support new LP8555 device

LP8555 is one of the LP855x family devices.

This device needs pre_init_device() and post_init_device() driver
structure.  It's same as LP8557, so the device configuration code is
shared with LP8557.  Backlight outputs are generated from dual DC-DC boost
converters.  It's configurable EPROM settings which are defined in the
platform data.

Driver documentation and device tree bindings are updated.

Signed-off-by: Milo Kim <milo.kim@ti.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Documentation/backlight/lp855x-driver.txt          |  5 ++--
 .../devicetree/bindings/video/backlight/lp855x.txt | 29 +++++++++++++++++++++-
 drivers/video/backlight/Kconfig                    |  4 +--
 drivers/video/backlight/lp855x_bl.c                | 17 +++++++++++--
 include/linux/platform_data/lp855x.h               | 19 ++++++++++++++
 5 files changed, 67 insertions(+), 7 deletions(-)

diff --git a/Documentation/backlight/lp855x-driver.txt b/Documentation/backlight/lp855x-driver.txt
index 1c732f0c6758..01bce243d3d7 100644
--- a/Documentation/backlight/lp855x-driver.txt
+++ b/Documentation/backlight/lp855x-driver.txt
@@ -4,7 +4,8 @@ Kernel driver lp855x
 Backlight driver for LP855x ICs
 
 Supported chips:
-	Texas Instruments LP8550, LP8551, LP8552, LP8553, LP8556 and LP8557
+	Texas Instruments LP8550, LP8551, LP8552, LP8553, LP8555, LP8556 and
+	LP8557
 
 Author: Milo(Woogyom) Kim <milo.kim@ti.com>
 
@@ -24,7 +25,7 @@ Value : pwm based or register based
 
 2) chip_id
 The lp855x chip id.
-Value : lp8550/lp8551/lp8552/lp8553/lp8556/lp8557
+Value : lp8550/lp8551/lp8552/lp8553/lp8555/lp8556/lp8557
 
 Platform data for lp855x
 ------------------------
diff --git a/Documentation/devicetree/bindings/video/backlight/lp855x.txt b/Documentation/devicetree/bindings/video/backlight/lp855x.txt
index 1482103d288f..96e83a56048e 100644
--- a/Documentation/devicetree/bindings/video/backlight/lp855x.txt
+++ b/Documentation/devicetree/bindings/video/backlight/lp855x.txt
@@ -2,7 +2,7 @@ lp855x bindings
 
 Required properties:
   - compatible: "ti,lp8550", "ti,lp8551", "ti,lp8552", "ti,lp8553",
-                "ti,lp8556", "ti,lp8557"
+                "ti,lp8555", "ti,lp8556", "ti,lp8557"
   - reg: I2C slave address (u8)
   - dev-ctrl: Value of DEVICE CONTROL register (u8). It depends on the device.
 
@@ -15,6 +15,33 @@ Optional properties:
 
 Example:
 
+	/* LP8555 */
+	backlight@2c {
+		compatible = "ti,lp8555";
+		reg = <0x2c>;
+
+		dev-ctrl = /bits/ 8 <0x00>;
+		pwm-period = <10000>;
+
+		/* 4V OV, 4 output LED0 string enabled */
+		rom_14h {
+			rom-addr = /bits/ 8 <0x14>;
+			rom-val = /bits/ 8 <0xcf>;
+		};
+
+		/* Heavy smoothing, 24ms ramp time step */
+		rom_15h {
+			rom-addr = /bits/ 8 <0x15>;
+			rom-val = /bits/ 8 <0xc7>;
+		};
+
+		/* 4 output LED1 string enabled */
+		rom_19h {
+			rom-addr = /bits/ 8 <0x19>;
+			rom-val = /bits/ 8 <0x0f>;
+		};
+	};
+
 	/* LP8556 */
 	backlight@2c {
 		compatible = "ti,lp8556";
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index d4a7a351d67c..a65dd063ecad 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -388,8 +388,8 @@ config BACKLIGHT_LP855X
 	tristate "Backlight driver for TI LP855X"
 	depends on BACKLIGHT_CLASS_DEVICE && I2C
 	help
-	  This supports TI LP8550, LP8551, LP8552, LP8553, LP8556 and LP8557
-	  backlight driver.
+	  This supports TI LP8550, LP8551, LP8552, LP8553, LP8555, LP8556 and
+	  LP8557 backlight driver.
 
 config BACKLIGHT_LP8788
 	tristate "Backlight driver for TI LP8788 MFD"
diff --git a/drivers/video/backlight/lp855x_bl.c b/drivers/video/backlight/lp855x_bl.c
index c0b41f13bd4a..c952175d4113 100644
--- a/drivers/video/backlight/lp855x_bl.c
+++ b/drivers/video/backlight/lp855x_bl.c
@@ -26,13 +26,15 @@
 #define LP8556_EPROM_START		0xA0
 #define LP8556_EPROM_END		0xAF
 
-/* LP8557 Registers */
+/* LP8555/7 Registers */
 #define LP8557_BL_CMD			0x00
 #define LP8557_BL_MASK			0x01
 #define LP8557_BL_ON			0x01
 #define LP8557_BL_OFF			0x00
 #define LP8557_BRIGHTNESS_CTRL		0x04
 #define LP8557_CONFIG			0x10
+#define LP8555_EPROM_START		0x10
+#define LP8555_EPROM_END		0x7A
 #define LP8557_EPROM_START		0x10
 #define LP8557_EPROM_END		0x1E
 
@@ -111,6 +113,10 @@ static bool lp855x_is_valid_rom_area(struct lp855x *lp, u8 addr)
 		start = LP8556_EPROM_START;
 		end = LP8556_EPROM_END;
 		break;
+	case LP8555:
+		start = LP8555_EPROM_START;
+		end = LP8555_EPROM_END;
+		break;
 	case LP8557:
 		start = LP8557_EPROM_START;
 		end = LP8557_EPROM_END;
@@ -165,9 +171,14 @@ static int lp855x_configure(struct lp855x *lp)
 	struct lp855x_platform_data *pd = lp->pdata;
 
 	switch (lp->chip_id) {
-	case LP8550 ... LP8556:
+	case LP8550:
+	case LP8551:
+	case LP8552:
+	case LP8553:
+	case LP8556:
 		lp->cfg = &lp855x_dev_cfg;
 		break;
+	case LP8555:
 	case LP8557:
 		lp->cfg = &lp8557_dev_cfg;
 		break;
@@ -470,6 +481,7 @@ static const struct of_device_id lp855x_dt_ids[] = {
 	{ .compatible = "ti,lp8551", },
 	{ .compatible = "ti,lp8552", },
 	{ .compatible = "ti,lp8553", },
+	{ .compatible = "ti,lp8555", },
 	{ .compatible = "ti,lp8556", },
 	{ .compatible = "ti,lp8557", },
 	{ }
@@ -481,6 +493,7 @@ static const struct i2c_device_id lp855x_ids[] = {
 	{"lp8551", LP8551},
 	{"lp8552", LP8552},
 	{"lp8553", LP8553},
+	{"lp8555", LP8555},
 	{"lp8556", LP8556},
 	{"lp8557", LP8557},
 	{ }
diff --git a/include/linux/platform_data/lp855x.h b/include/linux/platform_data/lp855x.h
index ea3200527dd3..1b2ba24e4e03 100644
--- a/include/linux/platform_data/lp855x.h
+++ b/include/linux/platform_data/lp855x.h
@@ -40,6 +40,17 @@
 #define LP8553_PWM_CONFIG	LP8550_PWM_CONFIG
 #define LP8553_I2C_CONFIG	LP8550_I2C_CONFIG
 
+/* CONFIG register - LP8555 */
+#define LP8555_PWM_STANDBY	BIT(7)
+#define LP8555_PWM_FILTER	BIT(6)
+#define LP8555_RELOAD_EPROM	BIT(3)	/* use it if EPROMs should be reset
+					   when the backlight turns on */
+#define LP8555_OFF_OPENLEDS	BIT(2)
+#define LP8555_PWM_CONFIG	LP8555_PWM_ONLY
+#define LP8555_I2C_CONFIG	LP8555_I2C_ONLY
+#define LP8555_COMB1_CONFIG	LP8555_COMBINED1
+#define LP8555_COMB2_CONFIG	LP8555_COMBINED2
+
 /* DEVICE CONTROL register - LP8556 */
 #define LP8556_PWM_CONFIG	(LP8556_PWM_ONLY << BRT_MODE_SHFT)
 #define LP8556_COMB1_CONFIG	(LP8556_COMBINED1 << BRT_MODE_SHFT)
@@ -65,6 +76,7 @@ enum lp855x_chip_id {
 	LP8551,
 	LP8552,
 	LP8553,
+	LP8555,
 	LP8556,
 	LP8557,
 };
@@ -89,6 +101,13 @@ enum lp8553_brighntess_source {
 	LP8553_I2C_ONLY = LP8550_I2C_ONLY,
 };
 
+enum lp8555_brightness_source {
+	LP8555_PWM_ONLY,
+	LP8555_I2C_ONLY,
+	LP8555_COMBINED1,	/* Brightness register with shaped PWM */
+	LP8555_COMBINED2,	/* PWM with shaped brightness register */
+};
+
 enum lp8556_brightness_source {
 	LP8556_PWM_ONLY,
 	LP8556_COMBINED1,	/* pwm + i2c before the shaper block */
-- 
cgit 


From 28e64a68a2ef1c48f30e8b6803725199929069fc Mon Sep 17 00:00:00 2001
From: Daniel Jeong <gshark.jeong@gmail.com>
Date: Tue, 12 Nov 2013 15:08:58 -0800
Subject: backlight: lm3630: apply chip revision

The LM3630 chip was revised by TI and chip name was also changed to
LM3630A.  And register map, default values and initial sequences are
changed.  The files, lm3630_bl.{c,h} are replaced by lm3630a_bl.{c,h} You
can find more information about LM3630A(datasheet, evm etc) at
http://www.ti.com/product/lm3630a

Signed-off-by: Daniel Jeong <gshark.jeong@gmail.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/Kconfig          |   6 +-
 drivers/video/backlight/Makefile         |   2 +-
 drivers/video/backlight/lm3630_bl.c      | 475 ------------------------------
 drivers/video/backlight/lm3630a_bl.c     | 483 +++++++++++++++++++++++++++++++
 include/linux/platform_data/lm3630_bl.h  |  57 ----
 include/linux/platform_data/lm3630a_bl.h |  65 +++++
 6 files changed, 552 insertions(+), 536 deletions(-)
 delete mode 100644 drivers/video/backlight/lm3630_bl.c
 create mode 100644 drivers/video/backlight/lm3630a_bl.c
 delete mode 100644 include/linux/platform_data/lm3630_bl.h
 create mode 100644 include/linux/platform_data/lm3630a_bl.h

diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index a65dd063ecad..5a3eb2ecb525 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -368,12 +368,12 @@ config BACKLIGHT_AAT2870
 	  If you have a AnalogicTech AAT2870 say Y to enable the
 	  backlight driver.
 
-config BACKLIGHT_LM3630
-	tristate "Backlight Driver for LM3630"
+config BACKLIGHT_LM3630A
+	tristate "Backlight Driver for LM3630A"
 	depends on BACKLIGHT_CLASS_DEVICE && I2C
 	select REGMAP_I2C
 	help
-	  This supports TI LM3630 Backlight Driver
+	  This supports TI LM3630A Backlight Driver
 
 config BACKLIGHT_LM3639
 	tristate "Backlight Driver for LM3639"
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index 38e1babb1946..bb820024f346 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -37,7 +37,7 @@ obj-$(CONFIG_BACKLIGHT_GPIO)		+= gpio_backlight.o
 obj-$(CONFIG_BACKLIGHT_HP680)		+= hp680_bl.o
 obj-$(CONFIG_BACKLIGHT_HP700)		+= jornada720_bl.o
 obj-$(CONFIG_BACKLIGHT_LM3533)		+= lm3533_bl.o
-obj-$(CONFIG_BACKLIGHT_LM3630)		+= lm3630_bl.o
+obj-$(CONFIG_BACKLIGHT_LM3630A)		+= lm3630a_bl.o
 obj-$(CONFIG_BACKLIGHT_LM3639)		+= lm3639_bl.o
 obj-$(CONFIG_BACKLIGHT_LOCOMO)		+= locomolcd.o
 obj-$(CONFIG_BACKLIGHT_LP855X)		+= lp855x_bl.o
diff --git a/drivers/video/backlight/lm3630_bl.c b/drivers/video/backlight/lm3630_bl.c
deleted file mode 100644
index 76a62e978fc3..000000000000
--- a/drivers/video/backlight/lm3630_bl.c
+++ /dev/null
@@ -1,475 +0,0 @@
-/*
-* Simple driver for Texas Instruments LM3630 Backlight driver chip
-* Copyright (C) 2012 Texas Instruments
-*
-* This program is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License version 2 as
-* published by the Free Software Foundation.
-*
-*/
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/i2c.h>
-#include <linux/backlight.h>
-#include <linux/err.h>
-#include <linux/delay.h>
-#include <linux/uaccess.h>
-#include <linux/interrupt.h>
-#include <linux/regmap.h>
-#include <linux/platform_data/lm3630_bl.h>
-
-#define REG_CTRL	0x00
-#define REG_CONFIG	0x01
-#define REG_BRT_A	0x03
-#define REG_BRT_B	0x04
-#define REG_INT_STATUS	0x09
-#define REG_INT_EN	0x0A
-#define REG_FAULT	0x0B
-#define REG_PWM_OUTLOW	0x12
-#define REG_PWM_OUTHIGH	0x13
-#define REG_MAX		0x1F
-
-#define INT_DEBOUNCE_MSEC	10
-
-enum lm3630_leds {
-	BLED_ALL = 0,
-	BLED_1,
-	BLED_2
-};
-
-static const char * const bled_name[] = {
-	[BLED_ALL] = "lm3630_bled",	/*Bank1 controls all string */
-	[BLED_1] = "lm3630_bled1",	/*Bank1 controls bled1 */
-	[BLED_2] = "lm3630_bled2",	/*Bank1 or 2 controls bled2 */
-};
-
-struct lm3630_chip_data {
-	struct device *dev;
-	struct delayed_work work;
-	int irq;
-	struct workqueue_struct *irqthread;
-	struct lm3630_platform_data *pdata;
-	struct backlight_device *bled1;
-	struct backlight_device *bled2;
-	struct regmap *regmap;
-};
-
-/* initialize chip */
-static int lm3630_chip_init(struct lm3630_chip_data *pchip)
-{
-	int ret;
-	unsigned int reg_val;
-	struct lm3630_platform_data *pdata = pchip->pdata;
-
-	/*pwm control */
-	reg_val = ((pdata->pwm_active & 0x01) << 2) | (pdata->pwm_ctrl & 0x03);
-	ret = regmap_update_bits(pchip->regmap, REG_CONFIG, 0x07, reg_val);
-	if (ret < 0)
-		goto out;
-
-	/* bank control */
-	reg_val = ((pdata->bank_b_ctrl & 0x01) << 1) |
-			(pdata->bank_a_ctrl & 0x07);
-	ret = regmap_update_bits(pchip->regmap, REG_CTRL, 0x07, reg_val);
-	if (ret < 0)
-		goto out;
-
-	ret = regmap_update_bits(pchip->regmap, REG_CTRL, 0x80, 0x00);
-	if (ret < 0)
-		goto out;
-
-	/* set initial brightness */
-	if (pdata->bank_a_ctrl != BANK_A_CTRL_DISABLE) {
-		ret = regmap_write(pchip->regmap,
-				   REG_BRT_A, pdata->init_brt_led1);
-		if (ret < 0)
-			goto out;
-	}
-
-	if (pdata->bank_b_ctrl != BANK_B_CTRL_DISABLE) {
-		ret = regmap_write(pchip->regmap,
-				   REG_BRT_B, pdata->init_brt_led2);
-		if (ret < 0)
-			goto out;
-	}
-	return ret;
-
-out:
-	dev_err(pchip->dev, "i2c failed to access register\n");
-	return ret;
-}
-
-/* interrupt handling */
-static void lm3630_delayed_func(struct work_struct *work)
-{
-	int ret;
-	unsigned int reg_val;
-	struct lm3630_chip_data *pchip;
-
-	pchip = container_of(work, struct lm3630_chip_data, work.work);
-
-	ret = regmap_read(pchip->regmap, REG_INT_STATUS, &reg_val);
-	if (ret < 0) {
-		dev_err(pchip->dev,
-			"i2c failed to access REG_INT_STATUS Register\n");
-		return;
-	}
-
-	dev_info(pchip->dev, "REG_INT_STATUS Register is 0x%x\n", reg_val);
-}
-
-static irqreturn_t lm3630_isr_func(int irq, void *chip)
-{
-	int ret;
-	struct lm3630_chip_data *pchip = chip;
-	unsigned long delay = msecs_to_jiffies(INT_DEBOUNCE_MSEC);
-
-	queue_delayed_work(pchip->irqthread, &pchip->work, delay);
-
-	ret = regmap_update_bits(pchip->regmap, REG_CTRL, 0x80, 0x00);
-	if (ret < 0)
-		goto out;
-
-	return IRQ_HANDLED;
-out:
-	dev_err(pchip->dev, "i2c failed to access register\n");
-	return IRQ_HANDLED;
-}
-
-static int lm3630_intr_config(struct lm3630_chip_data *pchip)
-{
-	INIT_DELAYED_WORK(&pchip->work, lm3630_delayed_func);
-	pchip->irqthread = create_singlethread_workqueue("lm3630-irqthd");
-	if (!pchip->irqthread) {
-		dev_err(pchip->dev, "create irq thread fail...\n");
-		return -1;
-	}
-	if (request_threaded_irq
-	    (pchip->irq, NULL, lm3630_isr_func,
-	     IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "lm3630_irq", pchip)) {
-		dev_err(pchip->dev, "request threaded irq fail..\n");
-		return -1;
-	}
-	return 0;
-}
-
-static bool
-set_intensity(struct backlight_device *bl, struct lm3630_chip_data *pchip)
-{
-	if (!pchip->pdata->pwm_set_intensity)
-		return false;
-	pchip->pdata->pwm_set_intensity(bl->props.brightness - 1,
-					pchip->pdata->pwm_period);
-	return true;
-}
-
-/* update and get brightness */
-static int lm3630_bank_a_update_status(struct backlight_device *bl)
-{
-	int ret;
-	struct lm3630_chip_data *pchip = bl_get_data(bl);
-	enum lm3630_pwm_ctrl pwm_ctrl = pchip->pdata->pwm_ctrl;
-
-	/* brightness 0 means disable */
-	if (!bl->props.brightness) {
-		ret = regmap_update_bits(pchip->regmap, REG_CTRL, 0x04, 0x00);
-		if (ret < 0)
-			goto out;
-		return bl->props.brightness;
-	}
-
-	/* pwm control */
-	if (pwm_ctrl == PWM_CTRL_BANK_A || pwm_ctrl == PWM_CTRL_BANK_ALL) {
-		if (!set_intensity(bl, pchip))
-			dev_err(pchip->dev, "No pwm control func. in plat-data\n");
-	} else {
-
-		/* i2c control */
-		ret = regmap_update_bits(pchip->regmap, REG_CTRL, 0x80, 0x00);
-		if (ret < 0)
-			goto out;
-		mdelay(1);
-		ret = regmap_write(pchip->regmap,
-				   REG_BRT_A, bl->props.brightness - 1);
-		if (ret < 0)
-			goto out;
-	}
-	return bl->props.brightness;
-out:
-	dev_err(pchip->dev, "i2c failed to access REG_CTRL\n");
-	return bl->props.brightness;
-}
-
-static int lm3630_bank_a_get_brightness(struct backlight_device *bl)
-{
-	unsigned int reg_val;
-	int brightness, ret;
-	struct lm3630_chip_data *pchip = bl_get_data(bl);
-	enum lm3630_pwm_ctrl pwm_ctrl = pchip->pdata->pwm_ctrl;
-
-	if (pwm_ctrl == PWM_CTRL_BANK_A || pwm_ctrl == PWM_CTRL_BANK_ALL) {
-		ret = regmap_read(pchip->regmap, REG_PWM_OUTHIGH, &reg_val);
-		if (ret < 0)
-			goto out;
-		brightness = reg_val & 0x01;
-		ret = regmap_read(pchip->regmap, REG_PWM_OUTLOW, &reg_val);
-		if (ret < 0)
-			goto out;
-		brightness = ((brightness << 8) | reg_val) + 1;
-	} else {
-		ret = regmap_update_bits(pchip->regmap, REG_CTRL, 0x80, 0x00);
-		if (ret < 0)
-			goto out;
-		mdelay(1);
-		ret = regmap_read(pchip->regmap, REG_BRT_A, &reg_val);
-		if (ret < 0)
-			goto out;
-		brightness = reg_val + 1;
-	}
-	bl->props.brightness = brightness;
-	return bl->props.brightness;
-out:
-	dev_err(pchip->dev, "i2c failed to access register\n");
-	return 0;
-}
-
-static const struct backlight_ops lm3630_bank_a_ops = {
-	.options = BL_CORE_SUSPENDRESUME,
-	.update_status = lm3630_bank_a_update_status,
-	.get_brightness = lm3630_bank_a_get_brightness,
-};
-
-static int lm3630_bank_b_update_status(struct backlight_device *bl)
-{
-	int ret;
-	struct lm3630_chip_data *pchip = bl_get_data(bl);
-	enum lm3630_pwm_ctrl pwm_ctrl = pchip->pdata->pwm_ctrl;
-
-	if (pwm_ctrl == PWM_CTRL_BANK_B || pwm_ctrl == PWM_CTRL_BANK_ALL) {
-		if (!set_intensity(bl, pchip))
-			dev_err(pchip->dev,
-				"no pwm control func. in plat-data\n");
-	} else {
-		ret = regmap_update_bits(pchip->regmap, REG_CTRL, 0x80, 0x00);
-		if (ret < 0)
-			goto out;
-		mdelay(1);
-		ret = regmap_write(pchip->regmap,
-				   REG_BRT_B, bl->props.brightness - 1);
-	}
-	return bl->props.brightness;
-out:
-	dev_err(pchip->dev, "i2c failed to access register\n");
-	return bl->props.brightness;
-}
-
-static int lm3630_bank_b_get_brightness(struct backlight_device *bl)
-{
-	unsigned int reg_val;
-	int brightness, ret;
-	struct lm3630_chip_data *pchip = bl_get_data(bl);
-	enum lm3630_pwm_ctrl pwm_ctrl = pchip->pdata->pwm_ctrl;
-
-	if (pwm_ctrl == PWM_CTRL_BANK_B || pwm_ctrl == PWM_CTRL_BANK_ALL) {
-		ret = regmap_read(pchip->regmap, REG_PWM_OUTHIGH, &reg_val);
-		if (ret < 0)
-			goto out;
-		brightness = reg_val & 0x01;
-		ret = regmap_read(pchip->regmap, REG_PWM_OUTLOW, &reg_val);
-		if (ret < 0)
-			goto out;
-		brightness = ((brightness << 8) | reg_val) + 1;
-	} else {
-		ret = regmap_update_bits(pchip->regmap, REG_CTRL, 0x80, 0x00);
-		if (ret < 0)
-			goto out;
-		mdelay(1);
-		ret = regmap_read(pchip->regmap, REG_BRT_B, &reg_val);
-		if (ret < 0)
-			goto out;
-		brightness = reg_val + 1;
-	}
-	bl->props.brightness = brightness;
-
-	return bl->props.brightness;
-out:
-	dev_err(pchip->dev, "i2c failed to access register\n");
-	return bl->props.brightness;
-}
-
-static const struct backlight_ops lm3630_bank_b_ops = {
-	.options = BL_CORE_SUSPENDRESUME,
-	.update_status = lm3630_bank_b_update_status,
-	.get_brightness = lm3630_bank_b_get_brightness,
-};
-
-static int lm3630_backlight_register(struct lm3630_chip_data *pchip,
-				     enum lm3630_leds ledno)
-{
-	const char *name = bled_name[ledno];
-	struct backlight_properties props;
-	struct lm3630_platform_data *pdata = pchip->pdata;
-
-	props.type = BACKLIGHT_RAW;
-	switch (ledno) {
-	case BLED_1:
-	case BLED_ALL:
-		props.brightness = pdata->init_brt_led1;
-		props.max_brightness = pdata->max_brt_led1;
-		pchip->bled1 =
-		    backlight_device_register(name, pchip->dev, pchip,
-					      &lm3630_bank_a_ops, &props);
-		if (IS_ERR(pchip->bled1))
-			return PTR_ERR(pchip->bled1);
-		break;
-	case BLED_2:
-		props.brightness = pdata->init_brt_led2;
-		props.max_brightness = pdata->max_brt_led2;
-		pchip->bled2 =
-		    backlight_device_register(name, pchip->dev, pchip,
-					      &lm3630_bank_b_ops, &props);
-		if (IS_ERR(pchip->bled2))
-			return PTR_ERR(pchip->bled2);
-		break;
-	}
-	return 0;
-}
-
-static void lm3630_backlight_unregister(struct lm3630_chip_data *pchip)
-{
-	if (pchip->bled1)
-		backlight_device_unregister(pchip->bled1);
-	if (pchip->bled2)
-		backlight_device_unregister(pchip->bled2);
-}
-
-static const struct regmap_config lm3630_regmap = {
-	.reg_bits = 8,
-	.val_bits = 8,
-	.max_register = REG_MAX,
-};
-
-static int lm3630_probe(struct i2c_client *client,
-				  const struct i2c_device_id *id)
-{
-	struct lm3630_platform_data *pdata = client->dev.platform_data;
-	struct lm3630_chip_data *pchip;
-	int ret;
-
-	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
-		dev_err(&client->dev, "fail : i2c functionality check...\n");
-		return -EOPNOTSUPP;
-	}
-
-	if (pdata == NULL) {
-		dev_err(&client->dev, "fail : no platform data.\n");
-		return -ENODATA;
-	}
-
-	pchip = devm_kzalloc(&client->dev, sizeof(struct lm3630_chip_data),
-			     GFP_KERNEL);
-	if (!pchip)
-		return -ENOMEM;
-	pchip->pdata = pdata;
-	pchip->dev = &client->dev;
-
-	pchip->regmap = devm_regmap_init_i2c(client, &lm3630_regmap);
-	if (IS_ERR(pchip->regmap)) {
-		ret = PTR_ERR(pchip->regmap);
-		dev_err(&client->dev, "fail : allocate register map: %d\n",
-			ret);
-		return ret;
-	}
-	i2c_set_clientdata(client, pchip);
-
-	/* chip initialize */
-	ret = lm3630_chip_init(pchip);
-	if (ret < 0) {
-		dev_err(&client->dev, "fail : init chip\n");
-		goto err_chip_init;
-	}
-
-	switch (pdata->bank_a_ctrl) {
-	case BANK_A_CTRL_ALL:
-		ret = lm3630_backlight_register(pchip, BLED_ALL);
-		pdata->bank_b_ctrl = BANK_B_CTRL_DISABLE;
-		break;
-	case BANK_A_CTRL_LED1:
-		ret = lm3630_backlight_register(pchip, BLED_1);
-		break;
-	case BANK_A_CTRL_LED2:
-		ret = lm3630_backlight_register(pchip, BLED_2);
-		pdata->bank_b_ctrl = BANK_B_CTRL_DISABLE;
-		break;
-	default:
-		break;
-	}
-
-	if (ret < 0)
-		goto err_bl_reg;
-
-	if (pdata->bank_b_ctrl && pchip->bled2 == NULL) {
-		ret = lm3630_backlight_register(pchip, BLED_2);
-		if (ret < 0)
-			goto err_bl_reg;
-	}
-
-	/* interrupt enable  : irq 0 is not allowed for lm3630 */
-	pchip->irq = client->irq;
-	if (pchip->irq)
-		lm3630_intr_config(pchip);
-
-	dev_info(&client->dev, "LM3630 backlight register OK.\n");
-	return 0;
-
-err_bl_reg:
-	dev_err(&client->dev, "fail : backlight register.\n");
-	lm3630_backlight_unregister(pchip);
-err_chip_init:
-	return ret;
-}
-
-static int lm3630_remove(struct i2c_client *client)
-{
-	int ret;
-	struct lm3630_chip_data *pchip = i2c_get_clientdata(client);
-
-	ret = regmap_write(pchip->regmap, REG_BRT_A, 0);
-	if (ret < 0)
-		dev_err(pchip->dev, "i2c failed to access register\n");
-
-	ret = regmap_write(pchip->regmap, REG_BRT_B, 0);
-	if (ret < 0)
-		dev_err(pchip->dev, "i2c failed to access register\n");
-
-	lm3630_backlight_unregister(pchip);
-	if (pchip->irq) {
-		free_irq(pchip->irq, pchip);
-		flush_workqueue(pchip->irqthread);
-		destroy_workqueue(pchip->irqthread);
-	}
-	return 0;
-}
-
-static const struct i2c_device_id lm3630_id[] = {
-	{LM3630_NAME, 0},
-	{}
-};
-
-MODULE_DEVICE_TABLE(i2c, lm3630_id);
-
-static struct i2c_driver lm3630_i2c_driver = {
-	.driver = {
-		   .name = LM3630_NAME,
-		   },
-	.probe = lm3630_probe,
-	.remove = lm3630_remove,
-	.id_table = lm3630_id,
-};
-
-module_i2c_driver(lm3630_i2c_driver);
-
-MODULE_DESCRIPTION("Texas Instruments Backlight driver for LM3630");
-MODULE_AUTHOR("G.Shark Jeong <gshark.jeong@gmail.com>");
-MODULE_AUTHOR("Daniel Jeong <daniel.jeong@ti.com>");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/video/backlight/lm3630a_bl.c b/drivers/video/backlight/lm3630a_bl.c
new file mode 100644
index 000000000000..cf40cc8e662b
--- /dev/null
+++ b/drivers/video/backlight/lm3630a_bl.c
@@ -0,0 +1,483 @@
+/*
+* Simple driver for Texas Instruments LM3630A Backlight driver chip
+* Copyright (C) 2012 Texas Instruments
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 2 as
+* published by the Free Software Foundation.
+*
+*/
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/backlight.h>
+#include <linux/err.h>
+#include <linux/delay.h>
+#include <linux/uaccess.h>
+#include <linux/interrupt.h>
+#include <linux/regmap.h>
+#include <linux/pwm.h>
+#include <linux/platform_data/lm3630a_bl.h>
+
+#define REG_CTRL	0x00
+#define REG_BOOST	0x02
+#define REG_CONFIG	0x01
+#define REG_BRT_A	0x03
+#define REG_BRT_B	0x04
+#define REG_I_A		0x05
+#define REG_I_B		0x06
+#define REG_INT_STATUS	0x09
+#define REG_INT_EN	0x0A
+#define REG_FAULT	0x0B
+#define REG_PWM_OUTLOW	0x12
+#define REG_PWM_OUTHIGH	0x13
+#define REG_MAX		0x1F
+
+#define INT_DEBOUNCE_MSEC	10
+struct lm3630a_chip {
+	struct device *dev;
+	struct delayed_work work;
+
+	int irq;
+	struct workqueue_struct *irqthread;
+	struct lm3630a_platform_data *pdata;
+	struct backlight_device *bleda;
+	struct backlight_device *bledb;
+	struct regmap *regmap;
+	struct pwm_device *pwmd;
+};
+
+/* i2c access */
+static int lm3630a_read(struct lm3630a_chip *pchip, unsigned int reg)
+{
+	int rval;
+	unsigned int reg_val;
+
+	rval = regmap_read(pchip->regmap, reg, &reg_val);
+	if (rval < 0)
+		return rval;
+	return reg_val & 0xFF;
+}
+
+static int lm3630a_write(struct lm3630a_chip *pchip,
+			 unsigned int reg, unsigned int data)
+{
+	return regmap_write(pchip->regmap, reg, data);
+}
+
+static int lm3630a_update(struct lm3630a_chip *pchip,
+			  unsigned int reg, unsigned int mask,
+			  unsigned int data)
+{
+	return regmap_update_bits(pchip->regmap, reg, mask, data);
+}
+
+/* initialize chip */
+static int lm3630a_chip_init(struct lm3630a_chip *pchip)
+{
+	int rval;
+	struct lm3630a_platform_data *pdata = pchip->pdata;
+
+	usleep_range(1000, 2000);
+	/* set Filter Strength Register */
+	rval = lm3630a_write(pchip, 0x50, 0x03);
+	/* set Cofig. register */
+	rval |= lm3630a_update(pchip, REG_CONFIG, 0x07, pdata->pwm_ctrl);
+	/* set boost control */
+	rval |= lm3630a_write(pchip, REG_BOOST, 0x38);
+	/* set current A */
+	rval |= lm3630a_update(pchip, REG_I_A, 0x1F, 0x1F);
+	/* set current B */
+	rval |= lm3630a_write(pchip, REG_I_B, 0x1F);
+	/* set control */
+	rval |=
+	    lm3630a_write(pchip, REG_CTRL, pdata->leda_ctrl | pdata->ledb_ctrl);
+	usleep_range(1000, 2000);
+	/* set brightness A and B */
+	rval |= lm3630a_write(pchip, REG_BRT_A, pdata->leda_init_brt);
+	rval |= lm3630a_write(pchip, REG_BRT_B, pdata->ledb_init_brt);
+
+	if (rval < 0)
+		dev_err(pchip->dev, "i2c failed to access register\n");
+	return rval;
+}
+
+/* interrupt handling */
+static void lm3630a_delayed_func(struct work_struct *work)
+{
+	unsigned int rval;
+	struct lm3630a_chip *pchip;
+
+	pchip = container_of(work, struct lm3630a_chip, work.work);
+
+	rval = lm3630a_read(pchip, REG_INT_STATUS);
+	if (rval < 0) {
+		dev_err(pchip->dev,
+			"i2c failed to access REG_INT_STATUS Register\n");
+		return;
+	}
+
+	dev_info(pchip->dev, "REG_INT_STATUS Register is 0x%x\n", rval);
+}
+
+static irqreturn_t lm3630a_isr_func(int irq, void *chip)
+{
+	int rval;
+	struct lm3630a_chip *pchip = chip;
+	unsigned long delay = msecs_to_jiffies(INT_DEBOUNCE_MSEC);
+
+	queue_delayed_work(pchip->irqthread, &pchip->work, delay);
+
+	rval = lm3630a_update(pchip, REG_CTRL, 0x80, 0x00);
+	if (rval < 0) {
+		dev_err(pchip->dev, "i2c failed to access register\n");
+		return IRQ_NONE;
+	}
+	return IRQ_HANDLED;
+}
+
+static int lm3630a_intr_config(struct lm3630a_chip *pchip)
+{
+	int rval;
+
+	rval = lm3630a_write(pchip, REG_INT_EN, 0x87);
+	if (rval < 0)
+		return rval;
+
+	INIT_DELAYED_WORK(&pchip->work, lm3630a_delayed_func);
+	pchip->irqthread = create_singlethread_workqueue("lm3630a-irqthd");
+	if (!pchip->irqthread) {
+		dev_err(pchip->dev, "create irq thread fail\n");
+		return -ENOMEM;
+	}
+	if (request_threaded_irq
+	    (pchip->irq, NULL, lm3630a_isr_func,
+	     IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "lm3630a_irq", pchip)) {
+		dev_err(pchip->dev, "request threaded irq fail\n");
+		return -ENOMEM;
+	}
+	return rval;
+}
+
+static void lm3630a_pwm_ctrl(struct lm3630a_chip *pchip, int br, int br_max)
+{
+	unsigned int period = pwm_get_period(pchip->pwmd);
+	unsigned int duty = br * period / br_max;
+
+	pwm_config(pchip->pwmd, duty, period);
+	if (duty)
+		pwm_enable(pchip->pwmd);
+	else
+		pwm_disable(pchip->pwmd);
+}
+
+/* update and get brightness */
+static int lm3630a_bank_a_update_status(struct backlight_device *bl)
+{
+	int ret;
+	struct lm3630a_chip *pchip = bl_get_data(bl);
+	enum lm3630a_pwm_ctrl pwm_ctrl = pchip->pdata->pwm_ctrl;
+
+	/* pwm control */
+	if ((pwm_ctrl & LM3630A_PWM_BANK_A) != 0) {
+		lm3630a_pwm_ctrl(pchip, bl->props.brightness,
+				 bl->props.max_brightness);
+		return bl->props.brightness;
+	}
+
+	/* disable sleep */
+	ret = lm3630a_update(pchip, REG_CTRL, 0x80, 0x00);
+	if (ret < 0)
+		goto out_i2c_err;
+	usleep_range(1000, 2000);
+	/* minimum brightness is 0x04 */
+	ret = lm3630a_write(pchip, REG_BRT_A, bl->props.brightness);
+	if (bl->props.brightness < 0x4)
+		ret |= lm3630a_update(pchip, REG_CTRL, LM3630A_LEDA_ENABLE, 0);
+	else
+		ret |= lm3630a_update(pchip, REG_CTRL,
+				      LM3630A_LEDA_ENABLE, LM3630A_LEDA_ENABLE);
+	if (ret < 0)
+		goto out_i2c_err;
+	return bl->props.brightness;
+
+out_i2c_err:
+	dev_err(pchip->dev, "i2c failed to access\n");
+	return bl->props.brightness;
+}
+
+static int lm3630a_bank_a_get_brightness(struct backlight_device *bl)
+{
+	int brightness, rval;
+	struct lm3630a_chip *pchip = bl_get_data(bl);
+	enum lm3630a_pwm_ctrl pwm_ctrl = pchip->pdata->pwm_ctrl;
+
+	if ((pwm_ctrl & LM3630A_PWM_BANK_A) != 0) {
+		rval = lm3630a_read(pchip, REG_PWM_OUTHIGH);
+		if (rval < 0)
+			goto out_i2c_err;
+		brightness = (rval & 0x01) << 8;
+		rval = lm3630a_read(pchip, REG_PWM_OUTLOW);
+		if (rval < 0)
+			goto out_i2c_err;
+		brightness |= rval;
+		goto out;
+	}
+
+	/* disable sleep */
+	rval = lm3630a_update(pchip, REG_CTRL, 0x80, 0x00);
+	if (rval < 0)
+		goto out_i2c_err;
+	usleep_range(1000, 2000);
+	rval = lm3630a_read(pchip, REG_BRT_A);
+	if (rval < 0)
+		goto out_i2c_err;
+	brightness = rval;
+
+out:
+	bl->props.brightness = brightness;
+	return bl->props.brightness;
+out_i2c_err:
+	dev_err(pchip->dev, "i2c failed to access register\n");
+	return 0;
+}
+
+static const struct backlight_ops lm3630a_bank_a_ops = {
+	.options = BL_CORE_SUSPENDRESUME,
+	.update_status = lm3630a_bank_a_update_status,
+	.get_brightness = lm3630a_bank_a_get_brightness,
+};
+
+/* update and get brightness */
+static int lm3630a_bank_b_update_status(struct backlight_device *bl)
+{
+	int ret;
+	struct lm3630a_chip *pchip = bl_get_data(bl);
+	enum lm3630a_pwm_ctrl pwm_ctrl = pchip->pdata->pwm_ctrl;
+
+	/* pwm control */
+	if ((pwm_ctrl & LM3630A_PWM_BANK_B) != 0) {
+		lm3630a_pwm_ctrl(pchip, bl->props.brightness,
+				 bl->props.max_brightness);
+		return bl->props.brightness;
+	}
+
+	/* disable sleep */
+	ret = lm3630a_update(pchip, REG_CTRL, 0x80, 0x00);
+	if (ret < 0)
+		goto out_i2c_err;
+	usleep_range(1000, 2000);
+	/* minimum brightness is 0x04 */
+	ret = lm3630a_write(pchip, REG_BRT_B, bl->props.brightness);
+	if (bl->props.brightness < 0x4)
+		ret |= lm3630a_update(pchip, REG_CTRL, LM3630A_LEDB_ENABLE, 0);
+	else
+		ret |= lm3630a_update(pchip, REG_CTRL,
+				      LM3630A_LEDB_ENABLE, LM3630A_LEDB_ENABLE);
+	if (ret < 0)
+		goto out_i2c_err;
+	return bl->props.brightness;
+
+out_i2c_err:
+	dev_err(pchip->dev, "i2c failed to access REG_CTRL\n");
+	return bl->props.brightness;
+}
+
+static int lm3630a_bank_b_get_brightness(struct backlight_device *bl)
+{
+	int brightness, rval;
+	struct lm3630a_chip *pchip = bl_get_data(bl);
+	enum lm3630a_pwm_ctrl pwm_ctrl = pchip->pdata->pwm_ctrl;
+
+	if ((pwm_ctrl & LM3630A_PWM_BANK_B) != 0) {
+		rval = lm3630a_read(pchip, REG_PWM_OUTHIGH);
+		if (rval < 0)
+			goto out_i2c_err;
+		brightness = (rval & 0x01) << 8;
+		rval = lm3630a_read(pchip, REG_PWM_OUTLOW);
+		if (rval < 0)
+			goto out_i2c_err;
+		brightness |= rval;
+		goto out;
+	}
+
+	/* disable sleep */
+	rval = lm3630a_update(pchip, REG_CTRL, 0x80, 0x00);
+	if (rval < 0)
+		goto out_i2c_err;
+	usleep_range(1000, 2000);
+	rval = lm3630a_read(pchip, REG_BRT_B);
+	if (rval < 0)
+		goto out_i2c_err;
+	brightness = rval;
+
+out:
+	bl->props.brightness = brightness;
+	return bl->props.brightness;
+out_i2c_err:
+	dev_err(pchip->dev, "i2c failed to access register\n");
+	return 0;
+}
+
+static const struct backlight_ops lm3630a_bank_b_ops = {
+	.options = BL_CORE_SUSPENDRESUME,
+	.update_status = lm3630a_bank_b_update_status,
+	.get_brightness = lm3630a_bank_b_get_brightness,
+};
+
+static int lm3630a_backlight_register(struct lm3630a_chip *pchip)
+{
+	struct backlight_properties props;
+	struct lm3630a_platform_data *pdata = pchip->pdata;
+
+	props.type = BACKLIGHT_RAW;
+	if (pdata->leda_ctrl != LM3630A_LEDA_DISABLE) {
+		props.brightness = pdata->leda_init_brt;
+		props.max_brightness = pdata->leda_max_brt;
+		pchip->bleda =
+		    devm_backlight_device_register(pchip->dev, "lm3630a_leda",
+						   pchip->dev, pchip,
+						   &lm3630a_bank_a_ops, &props);
+		if (IS_ERR(pchip->bleda))
+			return PTR_ERR(pchip->bleda);
+	}
+
+	if ((pdata->ledb_ctrl != LM3630A_LEDB_DISABLE) &&
+	    (pdata->ledb_ctrl != LM3630A_LEDB_ON_A)) {
+		props.brightness = pdata->ledb_init_brt;
+		props.max_brightness = pdata->ledb_max_brt;
+		pchip->bledb =
+		    devm_backlight_device_register(pchip->dev, "lm3630a_ledb",
+						   pchip->dev, pchip,
+						   &lm3630a_bank_b_ops, &props);
+		if (IS_ERR(pchip->bledb))
+			return PTR_ERR(pchip->bledb);
+	}
+	return 0;
+}
+
+static const struct regmap_config lm3630a_regmap = {
+	.reg_bits = 8,
+	.val_bits = 8,
+	.max_register = REG_MAX,
+};
+
+static int lm3630a_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
+{
+	struct lm3630a_platform_data *pdata = client->dev.platform_data;
+	struct lm3630a_chip *pchip;
+	int rval;
+
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
+		dev_err(&client->dev, "fail : i2c functionality check\n");
+		return -EOPNOTSUPP;
+	}
+
+	pchip = devm_kzalloc(&client->dev, sizeof(struct lm3630a_chip),
+			     GFP_KERNEL);
+	if (!pchip)
+		return -ENOMEM;
+	pchip->dev = &client->dev;
+
+	pchip->regmap = devm_regmap_init_i2c(client, &lm3630a_regmap);
+	if (IS_ERR(pchip->regmap)) {
+		rval = PTR_ERR(pchip->regmap);
+		dev_err(&client->dev, "fail : allocate reg. map: %d\n", rval);
+		return rval;
+	}
+
+	i2c_set_clientdata(client, pchip);
+	if (pdata == NULL) {
+		pchip->pdata = devm_kzalloc(pchip->dev,
+					    sizeof(struct
+						   lm3630a_platform_data),
+					    GFP_KERNEL);
+		if (pchip->pdata == NULL)
+			return -ENOMEM;
+		/* default values */
+		pchip->pdata->leda_ctrl = LM3630A_LEDA_ENABLE;
+		pchip->pdata->ledb_ctrl = LM3630A_LEDB_ENABLE;
+		pchip->pdata->leda_max_brt = LM3630A_MAX_BRIGHTNESS;
+		pchip->pdata->ledb_max_brt = LM3630A_MAX_BRIGHTNESS;
+		pchip->pdata->leda_init_brt = LM3630A_MAX_BRIGHTNESS;
+		pchip->pdata->ledb_init_brt = LM3630A_MAX_BRIGHTNESS;
+	} else {
+		pchip->pdata = pdata;
+	}
+	/* chip initialize */
+	rval = lm3630a_chip_init(pchip);
+	if (rval < 0) {
+		dev_err(&client->dev, "fail : init chip\n");
+		return rval;
+	}
+	/* backlight register */
+	rval = lm3630a_backlight_register(pchip);
+	if (rval < 0) {
+		dev_err(&client->dev, "fail : backlight register.\n");
+		return rval;
+	}
+	/* pwm */
+	if (pdata->pwm_ctrl != LM3630A_PWM_DISABLE) {
+		pchip->pwmd = devm_pwm_get(pchip->dev, "lm3630a-pwm");
+		if (IS_ERR(pchip->pwmd)) {
+			dev_err(&client->dev, "fail : get pwm device\n");
+			return PTR_ERR(pchip->pwmd);
+		}
+	}
+	pchip->pwmd->period = pdata->pwm_period;
+
+	/* interrupt enable  : irq 0 is not allowed */
+	pchip->irq = client->irq;
+	if (pchip->irq) {
+		rval = lm3630a_intr_config(pchip);
+		if (rval < 0)
+			return rval;
+	}
+	dev_info(&client->dev, "LM3630A backlight register OK.\n");
+	return 0;
+}
+
+static int lm3630a_remove(struct i2c_client *client)
+{
+	int rval;
+	struct lm3630a_chip *pchip = i2c_get_clientdata(client);
+
+	rval = lm3630a_write(pchip, REG_BRT_A, 0);
+	if (rval < 0)
+		dev_err(pchip->dev, "i2c failed to access register\n");
+
+	rval = lm3630a_write(pchip, REG_BRT_B, 0);
+	if (rval < 0)
+		dev_err(pchip->dev, "i2c failed to access register\n");
+
+	if (pchip->irq) {
+		free_irq(pchip->irq, pchip);
+		flush_workqueue(pchip->irqthread);
+		destroy_workqueue(pchip->irqthread);
+	}
+	return 0;
+}
+
+static const struct i2c_device_id lm3630a_id[] = {
+	{LM3630A_NAME, 0},
+	{}
+};
+
+MODULE_DEVICE_TABLE(i2c, lm3630a_id);
+
+static struct i2c_driver lm3630a_i2c_driver = {
+	.driver = {
+		   .name = LM3630A_NAME,
+		   },
+	.probe = lm3630a_probe,
+	.remove = lm3630a_remove,
+	.id_table = lm3630a_id,
+};
+
+module_i2c_driver(lm3630a_i2c_driver);
+
+MODULE_DESCRIPTION("Texas Instruments Backlight driver for LM3630A");
+MODULE_AUTHOR("Daniel Jeong <gshark.jeong@gmail.com>");
+MODULE_AUTHOR("LDD MLP <ldd-mlp@list.ti.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/include/linux/platform_data/lm3630_bl.h b/include/linux/platform_data/lm3630_bl.h
deleted file mode 100644
index 9176dd3f2d63..000000000000
--- a/include/linux/platform_data/lm3630_bl.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/*
-* Simple driver for Texas Instruments LM3630 LED Flash driver chip
-* Copyright (C) 2012 Texas Instruments
-*
-* This program is free software; you can redistribute it and/or modify
-* it under the terms of the GNU General Public License version 2 as
-* published by the Free Software Foundation.
-*
-*/
-
-#ifndef __LINUX_LM3630_H
-#define __LINUX_LM3630_H
-
-#define LM3630_NAME "lm3630_bl"
-
-enum lm3630_pwm_ctrl {
-	PWM_CTRL_DISABLE = 0,
-	PWM_CTRL_BANK_A,
-	PWM_CTRL_BANK_B,
-	PWM_CTRL_BANK_ALL,
-};
-
-enum lm3630_pwm_active {
-	PWM_ACTIVE_HIGH = 0,
-	PWM_ACTIVE_LOW,
-};
-
-enum lm3630_bank_a_ctrl {
-	BANK_A_CTRL_DISABLE = 0x0,
-	BANK_A_CTRL_LED1 = 0x4,
-	BANK_A_CTRL_LED2 = 0x1,
-	BANK_A_CTRL_ALL = 0x5,
-};
-
-enum lm3630_bank_b_ctrl {
-	BANK_B_CTRL_DISABLE = 0,
-	BANK_B_CTRL_LED2,
-};
-
-struct lm3630_platform_data {
-
-	/* maximum brightness */
-	int max_brt_led1;
-	int max_brt_led2;
-
-	/* initial on brightness */
-	int init_brt_led1;
-	int init_brt_led2;
-	enum lm3630_pwm_ctrl pwm_ctrl;
-	enum lm3630_pwm_active pwm_active;
-	enum lm3630_bank_a_ctrl bank_a_ctrl;
-	enum lm3630_bank_b_ctrl bank_b_ctrl;
-	unsigned int pwm_period;
-	void (*pwm_set_intensity) (int brightness, int max_brightness);
-};
-
-#endif /* __LINUX_LM3630_H */
diff --git a/include/linux/platform_data/lm3630a_bl.h b/include/linux/platform_data/lm3630a_bl.h
new file mode 100644
index 000000000000..7538e38e270b
--- /dev/null
+++ b/include/linux/platform_data/lm3630a_bl.h
@@ -0,0 +1,65 @@
+/*
+* Simple driver for Texas Instruments LM3630A LED Flash driver chip
+* Copyright (C) 2012 Texas Instruments
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 2 as
+* published by the Free Software Foundation.
+*
+*/
+
+#ifndef __LINUX_LM3630A_H
+#define __LINUX_LM3630A_H
+
+#define LM3630A_NAME "lm3630a_bl"
+
+enum lm3630a_pwm_ctrl {
+	LM3630A_PWM_DISABLE = 0x00,
+	LM3630A_PWM_BANK_A,
+	LM3630A_PWM_BANK_B,
+	LM3630A_PWM_BANK_ALL,
+	LM3630A_PWM_BANK_A_ACT_LOW = 0x05,
+	LM3630A_PWM_BANK_B_ACT_LOW,
+	LM3630A_PWM_BANK_ALL_ACT_LOW,
+};
+
+enum lm3630a_leda_ctrl {
+	LM3630A_LEDA_DISABLE = 0x00,
+	LM3630A_LEDA_ENABLE = 0x04,
+	LM3630A_LEDA_ENABLE_LINEAR = 0x14,
+};
+
+enum lm3630a_ledb_ctrl {
+	LM3630A_LEDB_DISABLE = 0x00,
+	LM3630A_LEDB_ON_A = 0x01,
+	LM3630A_LEDB_ENABLE = 0x02,
+	LM3630A_LEDB_ENABLE_LINEAR = 0x0A,
+};
+
+#define LM3630A_MAX_BRIGHTNESS 255
+/*
+ *@leda_init_brt : led a init brightness. 4~255
+ *@leda_max_brt  : led a max brightness.  4~255
+ *@leda_ctrl     : led a disable, enable linear, enable exponential
+ *@ledb_init_brt : led b init brightness. 4~255
+ *@ledb_max_brt  : led b max brightness.  4~255
+ *@ledb_ctrl     : led b disable, enable linear, enable exponential
+ *@pwm_period    : pwm period
+ *@pwm_ctrl      : pwm disable, bank a or b, active high or low
+ */
+struct lm3630a_platform_data {
+
+	/* led a config.  */
+	int leda_init_brt;
+	int leda_max_brt;
+	enum lm3630a_leda_ctrl leda_ctrl;
+	/* led b config. */
+	int ledb_init_brt;
+	int ledb_max_brt;
+	enum lm3630a_ledb_ctrl ledb_ctrl;
+	/* pwm config. */
+	unsigned int pwm_period;
+	enum lm3630a_pwm_ctrl pwm_ctrl;
+};
+
+#endif /* __LINUX_LM3630A_H */
-- 
cgit 


From 2a0c316bf3ccd910dc58ec62465ff620c664b5e4 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 12 Nov 2013 15:08:59 -0800
Subject: drivers/video/backlight/lm3630a_bl.c: fix signedness bug in
 lm3630a_chip_init()

"rval" needs to be signed for the error handling to work.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/lm3630a_bl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/backlight/lm3630a_bl.c b/drivers/video/backlight/lm3630a_bl.c
index cf40cc8e662b..200dca04383f 100644
--- a/drivers/video/backlight/lm3630a_bl.c
+++ b/drivers/video/backlight/lm3630a_bl.c
@@ -105,7 +105,7 @@ static int lm3630a_chip_init(struct lm3630a_chip *pchip)
 /* interrupt handling */
 static void lm3630a_delayed_func(struct work_struct *work)
 {
-	unsigned int rval;
+	int rval;
 	struct lm3630a_chip *pchip;
 
 	pchip = container_of(work, struct lm3630a_chip, work.work);
-- 
cgit 


From e19493c1f29a3ac48db8797a79532b62a03442b8 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 12 Nov 2013 15:09:00 -0800
Subject: drivers/video/backlight/lm3630a_bl.c: potential NULL deref in probe()

We dereference "pdata" later in the function so we can't leave it as NULL.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/lm3630a_bl.c | 25 ++++++++++++-------------
 1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/drivers/video/backlight/lm3630a_bl.c b/drivers/video/backlight/lm3630a_bl.c
index 200dca04383f..d719a89a4381 100644
--- a/drivers/video/backlight/lm3630a_bl.c
+++ b/drivers/video/backlight/lm3630a_bl.c
@@ -389,22 +389,21 @@ static int lm3630a_probe(struct i2c_client *client,
 
 	i2c_set_clientdata(client, pchip);
 	if (pdata == NULL) {
-		pchip->pdata = devm_kzalloc(pchip->dev,
-					    sizeof(struct
-						   lm3630a_platform_data),
-					    GFP_KERNEL);
-		if (pchip->pdata == NULL)
+		pdata = devm_kzalloc(pchip->dev,
+				     sizeof(struct lm3630a_platform_data),
+				     GFP_KERNEL);
+		if (pdata == NULL)
 			return -ENOMEM;
 		/* default values */
-		pchip->pdata->leda_ctrl = LM3630A_LEDA_ENABLE;
-		pchip->pdata->ledb_ctrl = LM3630A_LEDB_ENABLE;
-		pchip->pdata->leda_max_brt = LM3630A_MAX_BRIGHTNESS;
-		pchip->pdata->ledb_max_brt = LM3630A_MAX_BRIGHTNESS;
-		pchip->pdata->leda_init_brt = LM3630A_MAX_BRIGHTNESS;
-		pchip->pdata->ledb_init_brt = LM3630A_MAX_BRIGHTNESS;
-	} else {
-		pchip->pdata = pdata;
+		pdata->leda_ctrl = LM3630A_LEDA_ENABLE;
+		pdata->ledb_ctrl = LM3630A_LEDB_ENABLE;
+		pdata->leda_max_brt = LM3630A_MAX_BRIGHTNESS;
+		pdata->ledb_max_brt = LM3630A_MAX_BRIGHTNESS;
+		pdata->leda_init_brt = LM3630A_MAX_BRIGHTNESS;
+		pdata->ledb_init_brt = LM3630A_MAX_BRIGHTNESS;
 	}
+	pchip->pdata = pdata;
+
 	/* chip initialize */
 	rval = lm3630a_chip_init(pchip);
 	if (rval < 0) {
-- 
cgit 


From 4c4d2a3a064c893324ad3daca5c097dc7f06bbe3 Mon Sep 17 00:00:00 2001
From: Daniel Jeong <gshark.jeong@gmail.com>
Date: Tue, 12 Nov 2013 15:09:01 -0800
Subject: backlight: lm3630: fix sparse warning

This patch is to fix sparse warning due to mixing different enum type.

Signed-off-by: Daniel Jeong <gshark.jeong@gmail.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/lm3630a_bl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/backlight/lm3630a_bl.c b/drivers/video/backlight/lm3630a_bl.c
index d719a89a4381..1128a022e1d3 100644
--- a/drivers/video/backlight/lm3630a_bl.c
+++ b/drivers/video/backlight/lm3630a_bl.c
@@ -90,8 +90,8 @@ static int lm3630a_chip_init(struct lm3630a_chip *pchip)
 	/* set current B */
 	rval |= lm3630a_write(pchip, REG_I_B, 0x1F);
 	/* set control */
-	rval |=
-	    lm3630a_write(pchip, REG_CTRL, pdata->leda_ctrl | pdata->ledb_ctrl);
+	rval |= lm3630a_update(pchip, REG_CTRL, 0x14, pdata->leda_ctrl);
+	rval |= lm3630a_update(pchip, REG_CTRL, 0x0B, pdata->ledb_ctrl);
 	usleep_range(1000, 2000);
 	/* set brightness A and B */
 	rval |= lm3630a_write(pchip, REG_BRT_A, pdata->leda_init_brt);
-- 
cgit 


From 86b15d5d3bae0b4a64bd2bf834fc1d876285dbf0 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:01 -0800
Subject: backlight: ld9040: Staticize local variable gamma_table

Fix the following sparse warnings:

  drivers/video/backlight/ld9040_gamma.h:172:3: warning: symbol 'gamma_table' was not declared. Should it be static?

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/ld9040_gamma.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/video/backlight/ld9040_gamma.h b/drivers/video/backlight/ld9040_gamma.h
index 038d9c86ec03..c5e586d97385 100644
--- a/drivers/video/backlight/ld9040_gamma.h
+++ b/drivers/video/backlight/ld9040_gamma.h
@@ -169,7 +169,9 @@ static const unsigned int ld9040_22_50[] = {
 
 struct ld9040_gamma {
 	unsigned int *gamma_22_table[MAX_GAMMA_LEVEL];
-} gamma_table = {
+};
+
+static struct ld9040_gamma gamma_table = {
 	.gamma_22_table[0] = (unsigned int *)&ld9040_22_50,
 	.gamma_22_table[1] = (unsigned int *)&ld9040_22_70,
 	.gamma_22_table[2] = (unsigned int *)&ld9040_22_80,
-- 
cgit 


From 0ab7b20fa011f25f900b04e8f6f6e8221864eefd Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:02 -0800
Subject: backlight: lm3639: don't mix different enum types

Don't mix different enum types to fix the sparse warnings.

  drivers/video/backlight/lm3639_bl.c:80:51: warning: mixing different enum types
  drivers/video/backlight/lm3639_bl.c:80:51:     int enum lm3639_fleds  versus
  drivers/video/backlight/lm3639_bl.c:80:51:     int enum lm3639_bleds
  drivers/video/backlight/lm3639_bl.c:82:51: warning: mixing different enum types
  drivers/video/backlight/lm3639_bl.c:82:51:     int enum lm3639_fleds  versus
  drivers/video/backlight/lm3639_bl.c:82:51:     int enum lm3639_bleds

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/lm3639_bl.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/video/backlight/lm3639_bl.c b/drivers/video/backlight/lm3639_bl.c
index 053964da8dd3..6c888e39e4cd 100644
--- a/drivers/video/backlight/lm3639_bl.c
+++ b/drivers/video/backlight/lm3639_bl.c
@@ -76,10 +76,13 @@ static int lm3639_chip_init(struct lm3639_chip_data *pchip)
 		goto out;
 
 	/* output pins config. */
-	if (!pdata->init_brt_led)
-		reg_val = pdata->fled_pins | pdata->bled_pins;
-	else
-		reg_val = pdata->fled_pins | pdata->bled_pins | 0x01;
+	if (!pdata->init_brt_led) {
+		reg_val = pdata->fled_pins;
+		reg_val |= pdata->bled_pins;
+	} else {
+		reg_val = pdata->fled_pins;
+		reg_val |= pdata->bled_pins | 0x01;
+	}
 
 	ret = regmap_update_bits(pchip->regmap, REG_ENABLE, 0x79, reg_val);
 	if (ret < 0)
-- 
cgit 


From 1f299997b460d08356006945345a8962f7ecd719 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:03 -0800
Subject: backlight: lp8788: staticize 'default_bl_config'

Fix the following sparse warning:

  drivers/video/backlight/lp8788_bl.c:55:25: warning: symbol 'default_bl_config' was not declared. Should it be static?

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/lp8788_bl.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/backlight/lp8788_bl.c b/drivers/video/backlight/lp8788_bl.c
index 980855ec9bb1..e49905d495dc 100644
--- a/drivers/video/backlight/lp8788_bl.c
+++ b/drivers/video/backlight/lp8788_bl.c
@@ -52,7 +52,7 @@ struct lp8788_bl {
 	struct pwm_device *pwm;
 };
 
-struct lp8788_bl_config default_bl_config = {
+static struct lp8788_bl_config default_bl_config = {
 	.bl_mode    = LP8788_BL_REGISTER_ONLY,
 	.dim_mode   = LP8788_DIM_EXPONENTIAL,
 	.full_scale = LP8788_FULLSCALE_1900uA,
-- 
cgit 


From c512794cada491e008eeca822af7e4ad5db72a56 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:04 -0800
Subject: backlight: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.  This is a cosmetic change to
make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/88pm860x_bl.c        | 2 +-
 drivers/video/backlight/aat2870_bl.c         | 2 +-
 drivers/video/backlight/adp5520_bl.c         | 2 +-
 drivers/video/backlight/adp8860_bl.c         | 6 +++---
 drivers/video/backlight/adp8870_bl.c         | 6 +++---
 drivers/video/backlight/ams369fg06.c         | 2 +-
 drivers/video/backlight/atmel-pwm-bl.c       | 2 +-
 drivers/video/backlight/bd6107.c             | 2 +-
 drivers/video/backlight/corgi_lcd.c          | 2 +-
 drivers/video/backlight/da903x_bl.c          | 2 +-
 drivers/video/backlight/generic_bl.c         | 2 +-
 drivers/video/backlight/gpio_backlight.c     | 3 ++-
 drivers/video/backlight/ili9320.c            | 2 +-
 drivers/video/backlight/kb3886_bl.c          | 2 +-
 drivers/video/backlight/l4f00242t03.c        | 6 +++---
 drivers/video/backlight/ld9040.c             | 2 +-
 drivers/video/backlight/lm3533_bl.c          | 2 +-
 drivers/video/backlight/lm3630a_bl.c         | 2 +-
 drivers/video/backlight/lm3639_bl.c          | 2 +-
 drivers/video/backlight/lms283gf05.c         | 4 ++--
 drivers/video/backlight/lms501kf03.c         | 2 +-
 drivers/video/backlight/lp855x_bl.c          | 4 ++--
 drivers/video/backlight/lv5207lp.c           | 2 +-
 drivers/video/backlight/omap1_bl.c           | 2 +-
 drivers/video/backlight/pcf50633-backlight.c | 2 +-
 drivers/video/backlight/platform_lcd.c       | 2 +-
 drivers/video/backlight/pwm_bl.c             | 2 +-
 drivers/video/backlight/s6e63m0.c            | 2 +-
 drivers/video/backlight/tdo24m.c             | 2 +-
 drivers/video/backlight/tosa_bl.c            | 2 +-
 drivers/video/backlight/tps65217_bl.c        | 5 ++---
 drivers/video/backlight/wm831x_bl.c          | 8 +++-----
 32 files changed, 44 insertions(+), 46 deletions(-)

diff --git a/drivers/video/backlight/88pm860x_bl.c b/drivers/video/backlight/88pm860x_bl.c
index 2cd63507ed74..a84a12a6bf91 100644
--- a/drivers/video/backlight/88pm860x_bl.c
+++ b/drivers/video/backlight/88pm860x_bl.c
@@ -196,7 +196,7 @@ static int pm860x_backlight_dt_init(struct platform_device *pdev,
 static int pm860x_backlight_probe(struct platform_device *pdev)
 {
 	struct pm860x_chip *chip = dev_get_drvdata(pdev->dev.parent);
-	struct pm860x_backlight_pdata *pdata = pdev->dev.platform_data;
+	struct pm860x_backlight_pdata *pdata = dev_get_platdata(&pdev->dev);
 	struct pm860x_backlight_data *data;
 	struct backlight_device *bl;
 	struct resource *res;
diff --git a/drivers/video/backlight/aat2870_bl.c b/drivers/video/backlight/aat2870_bl.c
index c6fc668d6236..c68232b8b7de 100644
--- a/drivers/video/backlight/aat2870_bl.c
+++ b/drivers/video/backlight/aat2870_bl.c
@@ -127,7 +127,7 @@ static const struct backlight_ops aat2870_bl_ops = {
 
 static int aat2870_bl_probe(struct platform_device *pdev)
 {
-	struct aat2870_bl_platform_data *pdata = pdev->dev.platform_data;
+	struct aat2870_bl_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct aat2870_bl_driver_data *aat2870_bl;
 	struct backlight_device *bd;
 	struct backlight_properties props;
diff --git a/drivers/video/backlight/adp5520_bl.c b/drivers/video/backlight/adp5520_bl.c
index c84701b7ca6e..fe8e3d1c9798 100644
--- a/drivers/video/backlight/adp5520_bl.c
+++ b/drivers/video/backlight/adp5520_bl.c
@@ -297,7 +297,7 @@ static int adp5520_bl_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	data->master = pdev->dev.parent;
-	data->pdata = pdev->dev.platform_data;
+	data->pdata = dev_get_platdata(&pdev->dev);
 
 	if (data->pdata  == NULL) {
 		dev_err(&pdev->dev, "missing platform data\n");
diff --git a/drivers/video/backlight/adp8860_bl.c b/drivers/video/backlight/adp8860_bl.c
index 75b10f876127..2f77f37fac3c 100644
--- a/drivers/video/backlight/adp8860_bl.c
+++ b/drivers/video/backlight/adp8860_bl.c
@@ -216,7 +216,7 @@ static int adp8860_led_setup(struct adp8860_led *led)
 static int adp8860_led_probe(struct i2c_client *client)
 {
 	struct adp8860_backlight_platform_data *pdata =
-		client->dev.platform_data;
+		dev_get_platdata(&client->dev);
 	struct adp8860_bl *data = i2c_get_clientdata(client);
 	struct adp8860_led *led, *led_dat;
 	struct led_info *cur_led;
@@ -300,7 +300,7 @@ static int adp8860_led_probe(struct i2c_client *client)
 static int adp8860_led_remove(struct i2c_client *client)
 {
 	struct adp8860_backlight_platform_data *pdata =
-		client->dev.platform_data;
+		dev_get_platdata(&client->dev);
 	struct adp8860_bl *data = i2c_get_clientdata(client);
 	int i;
 
@@ -658,7 +658,7 @@ static int adp8860_probe(struct i2c_client *client,
 	struct backlight_device *bl;
 	struct adp8860_bl *data;
 	struct adp8860_backlight_platform_data *pdata =
-		client->dev.platform_data;
+		dev_get_platdata(&client->dev);
 	struct backlight_properties props;
 	uint8_t reg_val;
 	int ret;
diff --git a/drivers/video/backlight/adp8870_bl.c b/drivers/video/backlight/adp8870_bl.c
index 90049d7b5c60..9eee69fea49d 100644
--- a/drivers/video/backlight/adp8870_bl.c
+++ b/drivers/video/backlight/adp8870_bl.c
@@ -238,7 +238,7 @@ static int adp8870_led_setup(struct adp8870_led *led)
 static int adp8870_led_probe(struct i2c_client *client)
 {
 	struct adp8870_backlight_platform_data *pdata =
-		client->dev.platform_data;
+		dev_get_platdata(&client->dev);
 	struct adp8870_bl *data = i2c_get_clientdata(client);
 	struct adp8870_led *led, *led_dat;
 	struct led_info *cur_led;
@@ -325,7 +325,7 @@ static int adp8870_led_probe(struct i2c_client *client)
 static int adp8870_led_remove(struct i2c_client *client)
 {
 	struct adp8870_backlight_platform_data *pdata =
-		client->dev.platform_data;
+		dev_get_platdata(&client->dev);
 	struct adp8870_bl *data = i2c_get_clientdata(client);
 	int i;
 
@@ -848,7 +848,7 @@ static int adp8870_probe(struct i2c_client *client,
 	struct backlight_device *bl;
 	struct adp8870_bl *data;
 	struct adp8870_backlight_platform_data *pdata =
-		client->dev.platform_data;
+		dev_get_platdata(&client->dev);
 	uint8_t reg_val;
 	int ret;
 
diff --git a/drivers/video/backlight/ams369fg06.c b/drivers/video/backlight/ams369fg06.c
index 319fef6cb422..df5507b2b492 100644
--- a/drivers/video/backlight/ams369fg06.c
+++ b/drivers/video/backlight/ams369fg06.c
@@ -471,7 +471,7 @@ static int ams369fg06_probe(struct spi_device *spi)
 	lcd->spi = spi;
 	lcd->dev = &spi->dev;
 
-	lcd->lcd_pd = spi->dev.platform_data;
+	lcd->lcd_pd = dev_get_platdata(&spi->dev);
 	if (!lcd->lcd_pd) {
 		dev_err(&spi->dev, "platform data is NULL\n");
 		return -EINVAL;
diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c
index f7447f7004fb..c11121e9176b 100644
--- a/drivers/video/backlight/atmel-pwm-bl.c
+++ b/drivers/video/backlight/atmel-pwm-bl.c
@@ -133,7 +133,7 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev)
 
 	pwmbl->pdev = pdev;
 
-	pdata = pdev->dev.platform_data;
+	pdata = dev_get_platdata(&pdev->dev);
 	if (!pdata) {
 		retval = -ENODEV;
 		goto err_free_mem;
diff --git a/drivers/video/backlight/bd6107.c b/drivers/video/backlight/bd6107.c
index 15e3294b29fe..43c434e7dc86 100644
--- a/drivers/video/backlight/bd6107.c
+++ b/drivers/video/backlight/bd6107.c
@@ -128,7 +128,7 @@ static const struct backlight_ops bd6107_backlight_ops = {
 static int bd6107_probe(struct i2c_client *client,
 			  const struct i2c_device_id *id)
 {
-	struct bd6107_platform_data *pdata = client->dev.platform_data;
+	struct bd6107_platform_data *pdata = dev_get_platdata(&client->dev);
 	struct backlight_device *backlight;
 	struct backlight_properties props;
 	struct bd6107 *bd;
diff --git a/drivers/video/backlight/corgi_lcd.c b/drivers/video/backlight/corgi_lcd.c
index c97867a717a7..be56cfe03845 100644
--- a/drivers/video/backlight/corgi_lcd.c
+++ b/drivers/video/backlight/corgi_lcd.c
@@ -533,7 +533,7 @@ static int setup_gpio_backlight(struct corgi_lcd *lcd,
 static int corgi_lcd_probe(struct spi_device *spi)
 {
 	struct backlight_properties props;
-	struct corgi_lcd_platform_data *pdata = spi->dev.platform_data;
+	struct corgi_lcd_platform_data *pdata = dev_get_platdata(&spi->dev);
 	struct corgi_lcd *lcd;
 	int ret = 0;
 
diff --git a/drivers/video/backlight/da903x_bl.c b/drivers/video/backlight/da903x_bl.c
index 67cadd30e273..bbad5c21ed9e 100644
--- a/drivers/video/backlight/da903x_bl.c
+++ b/drivers/video/backlight/da903x_bl.c
@@ -109,7 +109,7 @@ static const struct backlight_ops da903x_backlight_ops = {
 
 static int da903x_backlight_probe(struct platform_device *pdev)
 {
-	struct da9034_backlight_pdata *pdata = pdev->dev.platform_data;
+	struct da9034_backlight_pdata *pdata = dev_get_platdata(&pdev->dev);
 	struct da903x_backlight_data *data;
 	struct backlight_device *bl;
 	struct backlight_properties props;
diff --git a/drivers/video/backlight/generic_bl.c b/drivers/video/backlight/generic_bl.c
index 19e393b41438..48fa9146958b 100644
--- a/drivers/video/backlight/generic_bl.c
+++ b/drivers/video/backlight/generic_bl.c
@@ -79,7 +79,7 @@ static const struct backlight_ops genericbl_ops = {
 static int genericbl_probe(struct platform_device *pdev)
 {
 	struct backlight_properties props;
-	struct generic_bl_info *machinfo = pdev->dev.platform_data;
+	struct generic_bl_info *machinfo = dev_get_platdata(&pdev->dev);
 	const char *name = "generic-bl";
 	struct backlight_device *bd;
 
diff --git a/drivers/video/backlight/gpio_backlight.c b/drivers/video/backlight/gpio_backlight.c
index 5fa217f9f445..118da0c6386f 100644
--- a/drivers/video/backlight/gpio_backlight.c
+++ b/drivers/video/backlight/gpio_backlight.c
@@ -62,7 +62,8 @@ static const struct backlight_ops gpio_backlight_ops = {
 
 static int gpio_backlight_probe(struct platform_device *pdev)
 {
-	struct gpio_backlight_platform_data *pdata = pdev->dev.platform_data;
+	struct gpio_backlight_platform_data *pdata =
+		dev_get_platdata(&pdev->dev);
 	struct backlight_properties props;
 	struct backlight_device *bl;
 	struct gpio_backlight *gbl;
diff --git a/drivers/video/backlight/ili9320.c b/drivers/video/backlight/ili9320.c
index f8be90c5dedc..4dd43e079a8d 100644
--- a/drivers/video/backlight/ili9320.c
+++ b/drivers/video/backlight/ili9320.c
@@ -198,7 +198,7 @@ static void ili9320_setup_spi(struct ili9320 *ili,
 int ili9320_probe_spi(struct spi_device *spi,
 				struct ili9320_client *client)
 {
-	struct ili9320_platdata *cfg = spi->dev.platform_data;
+	struct ili9320_platdata *cfg = dev_get_platdata(&spi->dev);
 	struct device *dev = &spi->dev;
 	struct ili9320 *ili;
 	struct lcd_device *lcd;
diff --git a/drivers/video/backlight/kb3886_bl.c b/drivers/video/backlight/kb3886_bl.c
index bca6ccc74dfb..5bacabb233d6 100644
--- a/drivers/video/backlight/kb3886_bl.c
+++ b/drivers/video/backlight/kb3886_bl.c
@@ -141,7 +141,7 @@ static const struct backlight_ops kb3886bl_ops = {
 static int kb3886bl_probe(struct platform_device *pdev)
 {
 	struct backlight_properties props;
-	struct kb3886bl_machinfo *machinfo = pdev->dev.platform_data;
+	struct kb3886bl_machinfo *machinfo = dev_get_platdata(&pdev->dev);
 
 	bl_machinfo = machinfo;
 	if (!machinfo->limit_mask)
diff --git a/drivers/video/backlight/l4f00242t03.c b/drivers/video/backlight/l4f00242t03.c
index a35a38c709cf..923eae2f85f8 100644
--- a/drivers/video/backlight/l4f00242t03.c
+++ b/drivers/video/backlight/l4f00242t03.c
@@ -48,7 +48,7 @@ static void l4f00242t03_reset(unsigned int gpio)
 
 static void l4f00242t03_lcd_init(struct spi_device *spi)
 {
-	struct l4f00242t03_pdata *pdata = spi->dev.platform_data;
+	struct l4f00242t03_pdata *pdata = dev_get_platdata(&spi->dev);
 	struct l4f00242t03_priv *priv = spi_get_drvdata(spi);
 	const u16 cmd[] = { 0x36, param(0), 0x3A, param(0x60) };
 	int ret;
@@ -88,7 +88,7 @@ static void l4f00242t03_lcd_init(struct spi_device *spi)
 
 static void l4f00242t03_lcd_powerdown(struct spi_device *spi)
 {
-	struct l4f00242t03_pdata *pdata = spi->dev.platform_data;
+	struct l4f00242t03_pdata *pdata = dev_get_platdata(&spi->dev);
 	struct l4f00242t03_priv *priv = spi_get_drvdata(spi);
 
 	dev_dbg(&spi->dev, "Powering down LCD\n");
@@ -171,7 +171,7 @@ static struct lcd_ops l4f_ops = {
 static int l4f00242t03_probe(struct spi_device *spi)
 {
 	struct l4f00242t03_priv *priv;
-	struct l4f00242t03_pdata *pdata = spi->dev.platform_data;
+	struct l4f00242t03_pdata *pdata = dev_get_platdata(&spi->dev);
 	int ret;
 
 	if (pdata == NULL) {
diff --git a/drivers/video/backlight/ld9040.c b/drivers/video/backlight/ld9040.c
index 1e0a3093ce50..26d5139b0696 100644
--- a/drivers/video/backlight/ld9040.c
+++ b/drivers/video/backlight/ld9040.c
@@ -702,7 +702,7 @@ static int ld9040_probe(struct spi_device *spi)
 	lcd->spi = spi;
 	lcd->dev = &spi->dev;
 
-	lcd->lcd_pd = spi->dev.platform_data;
+	lcd->lcd_pd = dev_get_platdata(&spi->dev);
 	if (!lcd->lcd_pd) {
 		dev_err(&spi->dev, "platform data is NULL.\n");
 		return -EINVAL;
diff --git a/drivers/video/backlight/lm3533_bl.c b/drivers/video/backlight/lm3533_bl.c
index 1d1dbfb789e3..93eea65f4cf9 100644
--- a/drivers/video/backlight/lm3533_bl.c
+++ b/drivers/video/backlight/lm3533_bl.c
@@ -284,7 +284,7 @@ static int lm3533_bl_probe(struct platform_device *pdev)
 	if (!lm3533)
 		return -EINVAL;
 
-	pdata = pdev->dev.platform_data;
+	pdata = dev_get_platdata(&pdev->dev);
 	if (!pdata) {
 		dev_err(&pdev->dev, "no platform data\n");
 		return -EINVAL;
diff --git a/drivers/video/backlight/lm3630a_bl.c b/drivers/video/backlight/lm3630a_bl.c
index 1128a022e1d3..999075a48863 100644
--- a/drivers/video/backlight/lm3630a_bl.c
+++ b/drivers/video/backlight/lm3630a_bl.c
@@ -365,7 +365,7 @@ static const struct regmap_config lm3630a_regmap = {
 static int lm3630a_probe(struct i2c_client *client,
 			 const struct i2c_device_id *id)
 {
-	struct lm3630a_platform_data *pdata = client->dev.platform_data;
+	struct lm3630a_platform_data *pdata = dev_get_platdata(&client->dev);
 	struct lm3630a_chip *pchip;
 	int rval;
 
diff --git a/drivers/video/backlight/lm3639_bl.c b/drivers/video/backlight/lm3639_bl.c
index 6c888e39e4cd..6fd60adf922e 100644
--- a/drivers/video/backlight/lm3639_bl.c
+++ b/drivers/video/backlight/lm3639_bl.c
@@ -307,7 +307,7 @@ static int lm3639_probe(struct i2c_client *client,
 {
 	int ret;
 	struct lm3639_chip_data *pchip;
-	struct lm3639_platform_data *pdata = client->dev.platform_data;
+	struct lm3639_platform_data *pdata = dev_get_platdata(&client->dev);
 	struct backlight_properties props;
 
 	if (!i2c_check_functionality(client->adapter, I2C_FUNC_I2C)) {
diff --git a/drivers/video/backlight/lms283gf05.c b/drivers/video/backlight/lms283gf05.c
index 4eec47261cd3..80b5929d4872 100644
--- a/drivers/video/backlight/lms283gf05.c
+++ b/drivers/video/backlight/lms283gf05.c
@@ -128,7 +128,7 @@ static int lms283gf05_power_set(struct lcd_device *ld, int power)
 {
 	struct lms283gf05_state *st = lcd_get_data(ld);
 	struct spi_device *spi = st->spi;
-	struct lms283gf05_pdata *pdata = spi->dev.platform_data;
+	struct lms283gf05_pdata *pdata = dev_get_platdata(&spi->dev);
 
 	if (power <= FB_BLANK_NORMAL) {
 		if (pdata)
@@ -153,7 +153,7 @@ static struct lcd_ops lms_ops = {
 static int lms283gf05_probe(struct spi_device *spi)
 {
 	struct lms283gf05_state *st;
-	struct lms283gf05_pdata *pdata = spi->dev.platform_data;
+	struct lms283gf05_pdata *pdata = dev_get_platdata(&spi->dev);
 	struct lcd_device *ld;
 	int ret = 0;
 
diff --git a/drivers/video/backlight/lms501kf03.c b/drivers/video/backlight/lms501kf03.c
index cf01b9ac8131..ff46e194a117 100644
--- a/drivers/video/backlight/lms501kf03.c
+++ b/drivers/video/backlight/lms501kf03.c
@@ -344,7 +344,7 @@ static int lms501kf03_probe(struct spi_device *spi)
 	lcd->spi = spi;
 	lcd->dev = &spi->dev;
 
-	lcd->lcd_pd = spi->dev.platform_data;
+	lcd->lcd_pd = dev_get_platdata(&spi->dev);
 	if (!lcd->lcd_pd) {
 		dev_err(&spi->dev, "platform data is NULL\n");
 		return -EINVAL;
diff --git a/drivers/video/backlight/lp855x_bl.c b/drivers/video/backlight/lp855x_bl.c
index c952175d4113..57f005a9b475 100644
--- a/drivers/video/backlight/lp855x_bl.c
+++ b/drivers/video/backlight/lp855x_bl.c
@@ -405,7 +405,7 @@ static int lp855x_parse_dt(struct device *dev, struct device_node *node)
 static int lp855x_probe(struct i2c_client *cl, const struct i2c_device_id *id)
 {
 	struct lp855x *lp;
-	struct lp855x_platform_data *pdata = cl->dev.platform_data;
+	struct lp855x_platform_data *pdata = dev_get_platdata(&cl->dev);
 	struct device_node *node = cl->dev.of_node;
 	int ret;
 
@@ -414,7 +414,7 @@ static int lp855x_probe(struct i2c_client *cl, const struct i2c_device_id *id)
 		if (ret < 0)
 			return ret;
 
-		pdata = cl->dev.platform_data;
+		pdata = dev_get_platdata(&cl->dev);
 	}
 
 	if (!i2c_check_functionality(cl->adapter, I2C_FUNC_SMBUS_I2C_BLOCK))
diff --git a/drivers/video/backlight/lv5207lp.c b/drivers/video/backlight/lv5207lp.c
index 498fd73d59b9..8091a28b2405 100644
--- a/drivers/video/backlight/lv5207lp.c
+++ b/drivers/video/backlight/lv5207lp.c
@@ -93,7 +93,7 @@ static const struct backlight_ops lv5207lp_backlight_ops = {
 static int lv5207lp_probe(struct i2c_client *client,
 			  const struct i2c_device_id *id)
 {
-	struct lv5207lp_platform_data *pdata = client->dev.platform_data;
+	struct lv5207lp_platform_data *pdata = dev_get_platdata(&client->dev);
 	struct backlight_device *backlight;
 	struct backlight_properties props;
 	struct lv5207lp *lv;
diff --git a/drivers/video/backlight/omap1_bl.c b/drivers/video/backlight/omap1_bl.c
index 812e22e35cab..ac11a4650c19 100644
--- a/drivers/video/backlight/omap1_bl.c
+++ b/drivers/video/backlight/omap1_bl.c
@@ -133,7 +133,7 @@ static int omapbl_probe(struct platform_device *pdev)
 	struct backlight_properties props;
 	struct backlight_device *dev;
 	struct omap_backlight *bl;
-	struct omap_backlight_config *pdata = pdev->dev.platform_data;
+	struct omap_backlight_config *pdata = dev_get_platdata(&pdev->dev);
 
 	if (!pdata)
 		return -ENXIO;
diff --git a/drivers/video/backlight/pcf50633-backlight.c b/drivers/video/backlight/pcf50633-backlight.c
index 6ed76be18f19..b2184cf70b92 100644
--- a/drivers/video/backlight/pcf50633-backlight.c
+++ b/drivers/video/backlight/pcf50633-backlight.c
@@ -103,7 +103,7 @@ static int pcf50633_bl_probe(struct platform_device *pdev)
 {
 	struct pcf50633_bl *pcf_bl;
 	struct device *parent = pdev->dev.parent;
-	struct pcf50633_platform_data *pcf50633_data = parent->platform_data;
+	struct pcf50633_platform_data *pcf50633_data = dev_get_platdata(parent);
 	struct pcf50633_bl_platform_data *pdata = pcf50633_data->backlight_data;
 	struct backlight_properties bl_props;
 
diff --git a/drivers/video/backlight/platform_lcd.c b/drivers/video/backlight/platform_lcd.c
index 056836706708..cc0f0675366e 100644
--- a/drivers/video/backlight/platform_lcd.c
+++ b/drivers/video/backlight/platform_lcd.c
@@ -80,7 +80,7 @@ static int platform_lcd_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	int err;
 
-	pdata = pdev->dev.platform_data;
+	pdata = dev_get_platdata(&pdev->dev);
 	if (!pdata) {
 		dev_err(dev, "no platform data supplied\n");
 		return -EINVAL;
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index 1fea627394d7..36db5d98dd2f 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -163,7 +163,7 @@ static int pwm_backlight_parse_dt(struct device *dev,
 
 static int pwm_backlight_probe(struct platform_device *pdev)
 {
-	struct platform_pwm_backlight_data *data = pdev->dev.platform_data;
+	struct platform_pwm_backlight_data *data = dev_get_platdata(&pdev->dev);
 	struct platform_pwm_backlight_data defdata;
 	struct backlight_properties props;
 	struct backlight_device *bl;
diff --git a/drivers/video/backlight/s6e63m0.c b/drivers/video/backlight/s6e63m0.c
index b37bb1854bf4..4e339adc1f57 100644
--- a/drivers/video/backlight/s6e63m0.c
+++ b/drivers/video/backlight/s6e63m0.c
@@ -735,7 +735,7 @@ static int s6e63m0_probe(struct spi_device *spi)
 	lcd->spi = spi;
 	lcd->dev = &spi->dev;
 
-	lcd->lcd_pd = spi->dev.platform_data;
+	lcd->lcd_pd = dev_get_platdata(&spi->dev);
 	if (!lcd->lcd_pd) {
 		dev_err(&spi->dev, "platform data is NULL.\n");
 		return -EINVAL;
diff --git a/drivers/video/backlight/tdo24m.c b/drivers/video/backlight/tdo24m.c
index 18cdf466d50a..2ccfa46eee7c 100644
--- a/drivers/video/backlight/tdo24m.c
+++ b/drivers/video/backlight/tdo24m.c
@@ -338,7 +338,7 @@ static int tdo24m_probe(struct spi_device *spi)
 	enum tdo24m_model model;
 	int err;
 
-	pdata = spi->dev.platform_data;
+	pdata = dev_get_platdata(&spi->dev);
 	if (pdata)
 		model = pdata->model;
 	else
diff --git a/drivers/video/backlight/tosa_bl.c b/drivers/video/backlight/tosa_bl.c
index 9df66ac68b34..b8db9338cacd 100644
--- a/drivers/video/backlight/tosa_bl.c
+++ b/drivers/video/backlight/tosa_bl.c
@@ -38,7 +38,7 @@ struct tosa_bl_data {
 
 static void tosa_bl_set_backlight(struct tosa_bl_data *data, int brightness)
 {
-	struct spi_device *spi = data->i2c->dev.platform_data;
+	struct spi_device *spi = dev_get_platdata(&data->i2c->dev);
 
 	i2c_smbus_write_byte_data(data->i2c, DAC_CH1, data->comadj);
 
diff --git a/drivers/video/backlight/tps65217_bl.c b/drivers/video/backlight/tps65217_bl.c
index 05782312aeb3..4ea20394e951 100644
--- a/drivers/video/backlight/tps65217_bl.c
+++ b/drivers/video/backlight/tps65217_bl.c
@@ -287,12 +287,11 @@ static int tps65217_bl_probe(struct platform_device *pdev)
 		if (IS_ERR(pdata))
 			return PTR_ERR(pdata);
 	} else {
-		if (!pdev->dev.platform_data) {
+		pdata = dev_get_platdata(&pdev->dev);
+		if (!pdata) {
 			dev_err(&pdev->dev, "no platform data provided\n");
 			return -EINVAL;
 		}
-
-		pdata = pdev->dev.platform_data;
 	}
 
 	tps65217_bl = devm_kzalloc(&pdev->dev, sizeof(*tps65217_bl),
diff --git a/drivers/video/backlight/wm831x_bl.c b/drivers/video/backlight/wm831x_bl.c
index 9e5517a3a52b..2ccf3206e93f 100644
--- a/drivers/video/backlight/wm831x_bl.c
+++ b/drivers/video/backlight/wm831x_bl.c
@@ -123,7 +123,7 @@ static const struct backlight_ops wm831x_backlight_ops = {
 static int wm831x_backlight_probe(struct platform_device *pdev)
 {
 	struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
-	struct wm831x_pdata *wm831x_pdata;
+	struct wm831x_pdata *wm831x_pdata = dev_get_platdata(pdev->dev.parent);
 	struct wm831x_backlight_pdata *pdata;
 	struct wm831x_backlight_data *data;
 	struct backlight_device *bl;
@@ -131,12 +131,10 @@ static int wm831x_backlight_probe(struct platform_device *pdev)
 	int ret, i, max_isel, isink_reg, dcdc_cfg;
 
 	/* We need platform data */
-	if (pdev->dev.parent->platform_data) {
-		wm831x_pdata = pdev->dev.parent->platform_data;
+	if (wm831x_pdata)
 		pdata = wm831x_pdata->backlight;
-	} else {
+	else
 		pdata = NULL;
-	}
 
 	if (!pdata) {
 		dev_err(&pdev->dev, "No platform data supplied\n");
-- 
cgit 


From f829c9ef826a4247ac2e6017632be266df0b13ae Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:05 -0800
Subject: backlight: 88pm860x_bl: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler, and
remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/88pm860x_bl.c | 16 ++--------------
 1 file changed, 2 insertions(+), 14 deletions(-)

diff --git a/drivers/video/backlight/88pm860x_bl.c b/drivers/video/backlight/88pm860x_bl.c
index a84a12a6bf91..7db5234462d0 100644
--- a/drivers/video/backlight/88pm860x_bl.c
+++ b/drivers/video/backlight/88pm860x_bl.c
@@ -243,7 +243,7 @@ static int pm860x_backlight_probe(struct platform_device *pdev)
 	memset(&props, 0, sizeof(struct backlight_properties));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = MAX_BRIGHTNESS;
-	bl = backlight_device_register(name, &pdev->dev, data,
+	bl = devm_backlight_device_register(&pdev->dev, name, &pdev->dev, data,
 					&pm860x_backlight_ops, &props);
 	if (IS_ERR(bl)) {
 		dev_err(&pdev->dev, "failed to register backlight\n");
@@ -256,21 +256,10 @@ static int pm860x_backlight_probe(struct platform_device *pdev)
 	/* read current backlight */
 	ret = pm860x_backlight_get_brightness(bl);
 	if (ret < 0)
-		goto out_brt;
+		return ret;
 
 	backlight_update_status(bl);
 	return 0;
-out_brt:
-	backlight_device_unregister(bl);
-	return ret;
-}
-
-static int pm860x_backlight_remove(struct platform_device *pdev)
-{
-	struct backlight_device *bl = platform_get_drvdata(pdev);
-
-	backlight_device_unregister(bl);
-	return 0;
 }
 
 static struct platform_driver pm860x_backlight_driver = {
@@ -279,7 +268,6 @@ static struct platform_driver pm860x_backlight_driver = {
 		.owner	= THIS_MODULE,
 	},
 	.probe		= pm860x_backlight_probe,
-	.remove		= pm860x_backlight_remove,
 };
 
 module_platform_driver(pm860x_backlight_driver);
-- 
cgit 


From c7a2bf3b217869f277c5cce229e482ef3bf5ad16 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:06 -0800
Subject: backlight: aat2870: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/aat2870_bl.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/video/backlight/aat2870_bl.c b/drivers/video/backlight/aat2870_bl.c
index c68232b8b7de..ee0c0a982e4e 100644
--- a/drivers/video/backlight/aat2870_bl.c
+++ b/drivers/video/backlight/aat2870_bl.c
@@ -158,8 +158,9 @@ static int aat2870_bl_probe(struct platform_device *pdev)
 	memset(&props, 0, sizeof(struct backlight_properties));
 
 	props.type = BACKLIGHT_RAW;
-	bd = backlight_device_register("aat2870-backlight", &pdev->dev,
-				       aat2870_bl, &aat2870_bl_ops, &props);
+	bd = devm_backlight_device_register(&pdev->dev, "aat2870-backlight",
+					&pdev->dev, aat2870_bl, &aat2870_bl_ops,
+					&props);
 	if (IS_ERR(bd)) {
 		dev_err(&pdev->dev,
 			"Failed allocate memory for backlight device\n");
@@ -194,13 +195,11 @@ static int aat2870_bl_probe(struct platform_device *pdev)
 	ret = aat2870_bl_update_status(bd);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Failed to initialize\n");
-		goto out_bl_dev_unregister;
+		return ret;
 	}
 
 	return 0;
 
-out_bl_dev_unregister:
-	backlight_device_unregister(bd);
 out:
 	return ret;
 }
@@ -214,8 +213,6 @@ static int aat2870_bl_remove(struct platform_device *pdev)
 	bd->props.brightness = 0;
 	backlight_update_status(bd);
 
-	backlight_device_unregister(bd);
-
 	return 0;
 }
 
-- 
cgit 


From 5f652c710d0aa7a4b97b4a55a2d035187eb0efcf Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:07 -0800
Subject: backlight: adp5520: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/adp5520_bl.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/drivers/video/backlight/adp5520_bl.c b/drivers/video/backlight/adp5520_bl.c
index fe8e3d1c9798..f37097a261a2 100644
--- a/drivers/video/backlight/adp5520_bl.c
+++ b/drivers/video/backlight/adp5520_bl.c
@@ -312,8 +312,9 @@ static int adp5520_bl_probe(struct platform_device *pdev)
 	memset(&props, 0, sizeof(struct backlight_properties));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = ADP5020_MAX_BRIGHTNESS;
-	bl = backlight_device_register(pdev->name, data->master, data,
-				       &adp5520_bl_ops, &props);
+	bl = devm_backlight_device_register(&pdev->dev, pdev->name,
+					data->master, data, &adp5520_bl_ops,
+					&props);
 	if (IS_ERR(bl)) {
 		dev_err(&pdev->dev, "failed to register backlight\n");
 		return PTR_ERR(bl);
@@ -326,7 +327,7 @@ static int adp5520_bl_probe(struct platform_device *pdev)
 
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register sysfs\n");
-		backlight_device_unregister(bl);
+		return ret;
 	}
 
 	platform_set_drvdata(pdev, bl);
@@ -347,8 +348,6 @@ static int adp5520_bl_remove(struct platform_device *pdev)
 		sysfs_remove_group(&bl->dev.kobj,
 				&adp5520_bl_attr_group);
 
-	backlight_device_unregister(bl);
-
 	return 0;
 }
 
-- 
cgit 


From 91fa4ee8f4c77e7ab87a42d795d6589ef3478094 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:08 -0800
Subject: backlight: adp8860: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/adp8860_bl.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/video/backlight/adp8860_bl.c b/drivers/video/backlight/adp8860_bl.c
index 2f77f37fac3c..9d656717d0f7 100644
--- a/drivers/video/backlight/adp8860_bl.c
+++ b/drivers/video/backlight/adp8860_bl.c
@@ -711,8 +711,9 @@ static int adp8860_probe(struct i2c_client *client,
 
 	mutex_init(&data->lock);
 
-	bl = backlight_device_register(dev_driver_string(&client->dev),
-			&client->dev, data, &adp8860_bl_ops, &props);
+	bl = devm_backlight_device_register(&client->dev,
+				dev_driver_string(&client->dev),
+				&client->dev, data, &adp8860_bl_ops, &props);
 	if (IS_ERR(bl)) {
 		dev_err(&client->dev, "failed to register backlight\n");
 		return PTR_ERR(bl);
@@ -728,7 +729,7 @@ static int adp8860_probe(struct i2c_client *client,
 
 	if (ret) {
 		dev_err(&client->dev, "failed to register sysfs\n");
-		goto out1;
+		return ret;
 	}
 
 	ret = adp8860_bl_setup(bl);
@@ -751,8 +752,6 @@ out:
 	if (data->en_ambl_sens)
 		sysfs_remove_group(&data->bl->dev.kobj,
 			&adp8860_bl_attr_group);
-out1:
-	backlight_device_unregister(bl);
 
 	return ret;
 }
@@ -770,8 +769,6 @@ static int adp8860_remove(struct i2c_client *client)
 		sysfs_remove_group(&data->bl->dev.kobj,
 			&adp8860_bl_attr_group);
 
-	backlight_device_unregister(data->bl);
-
 	return 0;
 }
 
-- 
cgit 


From 568ee6c3c852610a3951da31519aa28cc9f1927e Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:09 -0800
Subject: backlight: adp8870: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/adp8870_bl.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/video/backlight/adp8870_bl.c b/drivers/video/backlight/adp8870_bl.c
index 9eee69fea49d..63707205326b 100644
--- a/drivers/video/backlight/adp8870_bl.c
+++ b/drivers/video/backlight/adp8870_bl.c
@@ -888,8 +888,9 @@ static int adp8870_probe(struct i2c_client *client,
 	memset(&props, 0, sizeof(props));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = props.brightness = ADP8870_MAX_BRIGHTNESS;
-	bl = backlight_device_register(dev_driver_string(&client->dev),
-			&client->dev, data, &adp8870_bl_ops, &props);
+	bl = devm_backlight_device_register(&client->dev,
+				dev_driver_string(&client->dev),
+				&client->dev, data, &adp8870_bl_ops, &props);
 	if (IS_ERR(bl)) {
 		dev_err(&client->dev, "failed to register backlight\n");
 		return PTR_ERR(bl);
@@ -902,7 +903,7 @@ static int adp8870_probe(struct i2c_client *client,
 			&adp8870_bl_attr_group);
 		if (ret) {
 			dev_err(&client->dev, "failed to register sysfs\n");
-			goto out1;
+			return ret;
 		}
 	}
 
@@ -925,8 +926,6 @@ out:
 	if (data->pdata->en_ambl_sens)
 		sysfs_remove_group(&data->bl->dev.kobj,
 			&adp8870_bl_attr_group);
-out1:
-	backlight_device_unregister(bl);
 
 	return ret;
 }
@@ -944,8 +943,6 @@ static int adp8870_remove(struct i2c_client *client)
 		sysfs_remove_group(&data->bl->dev.kobj,
 			&adp8870_bl_attr_group);
 
-	backlight_device_unregister(data->bl);
-
 	return 0;
 }
 
-- 
cgit 


From 83dedc056b61bcfc693d1085b76aa32cc242db6f Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:10 -0800
Subject: backlight: as3711_bl: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler, and
remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/as3711_bl.c | 26 +++++---------------------
 1 file changed, 5 insertions(+), 21 deletions(-)

diff --git a/drivers/video/backlight/as3711_bl.c b/drivers/video/backlight/as3711_bl.c
index 123887cd76bd..bb1fc45b7549 100644
--- a/drivers/video/backlight/as3711_bl.c
+++ b/drivers/video/backlight/as3711_bl.c
@@ -240,7 +240,8 @@ static int as3711_bl_register(struct platform_device *pdev,
 	/* max tuning I = 31uA for voltage- and 38250uA for current-feedback */
 	props.max_brightness = max_brightness;
 
-	bl = backlight_device_register(su->type == AS3711_BL_SU1 ?
+	bl = devm_backlight_device_register(&pdev->dev,
+				       su->type == AS3711_BL_SU1 ?
 				       "as3711-su1" : "as3711-su2",
 				       &pdev->dev, su,
 				       &as3711_bl_ops, &props);
@@ -432,8 +433,7 @@ static int as3711_backlight_probe(struct platform_device *pdev)
 		case AS3711_SU2_LX_SD4:
 			break;
 		default:
-			ret = -EINVAL;
-			goto esu2;
+			return -EINVAL;
 		}
 
 		switch (pdata->su2_feedback) {
@@ -447,8 +447,7 @@ static int as3711_backlight_probe(struct platform_device *pdev)
 			max_brightness = min(pdata->su2_max_uA / 150, 255);
 			break;
 		default:
-			ret = -EINVAL;
-			goto esu2;
+			return -EINVAL;
 		}
 
 		ret = as3711_bl_init_su2(supply);
@@ -457,25 +456,11 @@ static int as3711_backlight_probe(struct platform_device *pdev)
 
 		ret = as3711_bl_register(pdev, max_brightness, su);
 		if (ret < 0)
-			goto esu2;
+			return ret;
 	}
 
 	platform_set_drvdata(pdev, supply);
 
-	return 0;
-
-esu2:
-	backlight_device_unregister(supply->su1.bl);
-	return ret;
-}
-
-static int as3711_backlight_remove(struct platform_device *pdev)
-{
-	struct as3711_bl_supply *supply = platform_get_drvdata(pdev);
-
-	backlight_device_unregister(supply->su1.bl);
-	backlight_device_unregister(supply->su2.bl);
-
 	return 0;
 }
 
@@ -485,7 +470,6 @@ static struct platform_driver as3711_backlight_driver = {
 		.owner	= THIS_MODULE,
 	},
 	.probe		= as3711_backlight_probe,
-	.remove		= as3711_backlight_remove,
 };
 
 module_platform_driver(as3711_backlight_driver);
-- 
cgit 


From 3e61c73c52443b98a587a0db70a7ebf417de34f6 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:11 -0800
Subject: backlight: atmel-pwm-bl: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/atmel-pwm-bl.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c
index c11121e9176b..66885fbb8e97 100644
--- a/drivers/video/backlight/atmel-pwm-bl.c
+++ b/drivers/video/backlight/atmel-pwm-bl.c
@@ -171,8 +171,9 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev)
 	memset(&props, 0, sizeof(struct backlight_properties));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = pdata->pwm_duty_max - pdata->pwm_duty_min;
-	bldev = backlight_device_register("atmel-pwm-bl", &pdev->dev, pwmbl,
-					  &atmel_pwm_bl_ops, &props);
+	bldev = devm_backlight_device_register(&pdev->dev, "atmel-pwm-bl",
+					&pdev->dev, pwmbl, &atmel_pwm_bl_ops,
+					&props);
 	if (IS_ERR(bldev)) {
 		retval = PTR_ERR(bldev);
 		goto err_free_pwm;
@@ -188,14 +189,12 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev)
 
 	retval = atmel_pwm_bl_init_pwm(pwmbl);
 	if (retval)
-		goto err_free_bl_dev;
+		goto err_free_pwm;
 
 	atmel_pwm_bl_set_intensity(bldev);
 
 	return 0;
 
-err_free_bl_dev:
-	backlight_device_unregister(bldev);
 err_free_pwm:
 	pwm_channel_free(&pwmbl->pwmc);
 err_free_mem:
@@ -210,7 +209,6 @@ static int atmel_pwm_bl_remove(struct platform_device *pdev)
 		gpio_set_value(pwmbl->gpio_on, 0);
 	pwm_channel_disable(&pwmbl->pwmc);
 	pwm_channel_free(&pwmbl->pwmc);
-	backlight_device_unregister(pwmbl->bldev);
 
 	return 0;
 }
-- 
cgit 


From 26faf15cc650c6f30687c3e3c22d480bb1e3542b Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:12 -0800
Subject: backlight: bd6107: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/bd6107.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/backlight/bd6107.c b/drivers/video/backlight/bd6107.c
index 43c434e7dc86..16dd9bc625bd 100644
--- a/drivers/video/backlight/bd6107.c
+++ b/drivers/video/backlight/bd6107.c
@@ -166,7 +166,8 @@ static int bd6107_probe(struct i2c_client *client,
 	props.brightness = clamp_t(unsigned int, pdata->def_value, 0,
 				   props.max_brightness);
 
-	backlight = backlight_device_register(dev_name(&client->dev),
+	backlight = devm_backlight_device_register(&client->dev,
+					      dev_name(&client->dev),
 					      &bd->client->dev, bd,
 					      &bd6107_backlight_ops, &props);
 	if (IS_ERR(backlight)) {
@@ -186,7 +187,6 @@ static int bd6107_remove(struct i2c_client *client)
 
 	backlight->props.brightness = 0;
 	backlight_update_status(backlight);
-	backlight_device_unregister(backlight);
 
 	return 0;
 }
-- 
cgit 


From 564452938311c81194fb9da8fc51f2a12c9a3afd Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:12 -0800
Subject: backlight: da903x_bl: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler, and
remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/da903x_bl.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/video/backlight/da903x_bl.c b/drivers/video/backlight/da903x_bl.c
index bbad5c21ed9e..12c5d840c590 100644
--- a/drivers/video/backlight/da903x_bl.c
+++ b/drivers/video/backlight/da903x_bl.c
@@ -144,8 +144,9 @@ static int da903x_backlight_probe(struct platform_device *pdev)
 	memset(&props, 0, sizeof(props));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = max_brightness;
-	bl = backlight_device_register(pdev->name, data->da903x_dev, data,
-				       &da903x_backlight_ops, &props);
+	bl = devm_backlight_device_register(&pdev->dev, pdev->name,
+					data->da903x_dev, data,
+					&da903x_backlight_ops, &props);
 	if (IS_ERR(bl)) {
 		dev_err(&pdev->dev, "failed to register backlight\n");
 		return PTR_ERR(bl);
@@ -158,21 +159,12 @@ static int da903x_backlight_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int da903x_backlight_remove(struct platform_device *pdev)
-{
-	struct backlight_device *bl = platform_get_drvdata(pdev);
-
-	backlight_device_unregister(bl);
-	return 0;
-}
-
 static struct platform_driver da903x_backlight_driver = {
 	.driver		= {
 		.name	= "da903x-backlight",
 		.owner	= THIS_MODULE,
 	},
 	.probe		= da903x_backlight_probe,
-	.remove		= da903x_backlight_remove,
 };
 
 module_platform_driver(da903x_backlight_driver);
-- 
cgit 


From 02f0092cb37669fd9c68770365a18168b8cd5f60 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:13 -0800
Subject: backlight: da9052_bl: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/da9052_bl.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/video/backlight/da9052_bl.c b/drivers/video/backlight/da9052_bl.c
index 842da5a3ac4f..20d55becaa74 100644
--- a/drivers/video/backlight/da9052_bl.c
+++ b/drivers/video/backlight/da9052_bl.c
@@ -125,8 +125,9 @@ static int da9052_backlight_probe(struct platform_device *pdev)
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = DA9052_MAX_BRIGHTNESS;
 
-	bl = backlight_device_register(pdev->name, wleds->da9052->dev, wleds,
-				       &da9052_backlight_ops, &props);
+	bl = devm_backlight_device_register(&pdev->dev, pdev->name,
+					wleds->da9052->dev, wleds,
+					&da9052_backlight_ops, &props);
 	if (IS_ERR(bl)) {
 		dev_err(&pdev->dev, "Failed to register backlight\n");
 		return PTR_ERR(bl);
@@ -147,7 +148,6 @@ static int da9052_backlight_remove(struct platform_device *pdev)
 	wleds->brightness = 0;
 	wleds->state = DA9052_WLEDS_OFF;
 	da9052_adjust_wled_brightness(wleds);
-	backlight_device_unregister(bl);
 
 	return 0;
 }
-- 
cgit 


From 23741ada20103cda6a39fad9eb0171757ef997ff Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:14 -0800
Subject: backlight: ep93xx: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler, and
remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/ep93xx_bl.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/video/backlight/ep93xx_bl.c b/drivers/video/backlight/ep93xx_bl.c
index 018368ba4124..0d1f633c6480 100644
--- a/drivers/video/backlight/ep93xx_bl.c
+++ b/drivers/video/backlight/ep93xx_bl.c
@@ -92,8 +92,8 @@ static int ep93xxbl_probe(struct platform_device *dev)
 	memset(&props, 0, sizeof(struct backlight_properties));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = EP93XX_MAX_BRIGHT;
-	bl = backlight_device_register(dev->name, &dev->dev, ep93xxbl,
-				       &ep93xxbl_ops, &props);
+	bl = devm_backlight_device_register(&dev->dev, dev->name, &dev->dev,
+					ep93xxbl, &ep93xxbl_ops, &props);
 	if (IS_ERR(bl))
 		return PTR_ERR(bl);
 
@@ -106,14 +106,6 @@ static int ep93xxbl_probe(struct platform_device *dev)
 	return 0;
 }
 
-static int ep93xxbl_remove(struct platform_device *dev)
-{
-	struct backlight_device *bl = platform_get_drvdata(dev);
-
-	backlight_device_unregister(bl);
-	return 0;
-}
-
 #ifdef CONFIG_PM_SLEEP
 static int ep93xxbl_suspend(struct device *dev)
 {
@@ -140,7 +132,6 @@ static struct platform_driver ep93xxbl_driver = {
 		.pm	= &ep93xxbl_pm_ops,
 	},
 	.probe		= ep93xxbl_probe,
-	.remove		= ep93xxbl_remove,
 };
 
 module_platform_driver(ep93xxbl_driver);
-- 
cgit 


From de2efd2a9ffba56eb0c00a48346685baa377c370 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:15 -0800
Subject: backlight: generic_bl: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/generic_bl.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/video/backlight/generic_bl.c b/drivers/video/backlight/generic_bl.c
index 48fa9146958b..5d8d65200db7 100644
--- a/drivers/video/backlight/generic_bl.c
+++ b/drivers/video/backlight/generic_bl.c
@@ -93,8 +93,8 @@ static int genericbl_probe(struct platform_device *pdev)
 	memset(&props, 0, sizeof(struct backlight_properties));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = machinfo->max_intensity;
-	bd = backlight_device_register(name, &pdev->dev, NULL, &genericbl_ops,
-				       &props);
+	bd = devm_backlight_device_register(&pdev->dev, name, &pdev->dev,
+					NULL, &genericbl_ops, &props);
 	if (IS_ERR(bd))
 		return PTR_ERR(bd);
 
@@ -118,8 +118,6 @@ static int genericbl_remove(struct platform_device *pdev)
 	bd->props.brightness = 0;
 	backlight_update_status(bd);
 
-	backlight_device_unregister(bd);
-
 	dev_info(&pdev->dev, "Generic Backlight Driver Unloaded\n");
 	return 0;
 }
-- 
cgit 


From ff47201582a5bbe6d14d2004e637351c41f78214 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:16 -0800
Subject: backlight: gpio_backlight: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler, and
remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/gpio_backlight.c | 14 +++-----------
 1 file changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/video/backlight/gpio_backlight.c b/drivers/video/backlight/gpio_backlight.c
index 118da0c6386f..81fb12770c2a 100644
--- a/drivers/video/backlight/gpio_backlight.c
+++ b/drivers/video/backlight/gpio_backlight.c
@@ -95,8 +95,9 @@ static int gpio_backlight_probe(struct platform_device *pdev)
 	memset(&props, 0, sizeof(props));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = 1;
-	bl = backlight_device_register(dev_name(&pdev->dev), &pdev->dev, gbl,
-				       &gpio_backlight_ops, &props);
+	bl = devm_backlight_device_register(&pdev->dev, dev_name(&pdev->dev),
+					&pdev->dev, gbl, &gpio_backlight_ops,
+					&props);
 	if (IS_ERR(bl)) {
 		dev_err(&pdev->dev, "failed to register backlight\n");
 		return PTR_ERR(bl);
@@ -109,21 +110,12 @@ static int gpio_backlight_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int gpio_backlight_remove(struct platform_device *pdev)
-{
-	struct backlight_device *bl = platform_get_drvdata(pdev);
-
-	backlight_device_unregister(bl);
-	return 0;
-}
-
 static struct platform_driver gpio_backlight_driver = {
 	.driver		= {
 		.name		= "gpio-backlight",
 		.owner		= THIS_MODULE,
 	},
 	.probe		= gpio_backlight_probe,
-	.remove		= gpio_backlight_remove,
 };
 
 module_platform_driver(gpio_backlight_driver);
-- 
cgit 


From da6537850eb0d54eed44ba686be0f5f83c5c6559 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:17 -0800
Subject: backlight: kb3886_bl: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler, and
remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/kb3886_bl.c | 18 ++++--------------
 1 file changed, 4 insertions(+), 14 deletions(-)

diff --git a/drivers/video/backlight/kb3886_bl.c b/drivers/video/backlight/kb3886_bl.c
index 5bacabb233d6..7592cc25c963 100644
--- a/drivers/video/backlight/kb3886_bl.c
+++ b/drivers/video/backlight/kb3886_bl.c
@@ -150,10 +150,10 @@ static int kb3886bl_probe(struct platform_device *pdev)
 	memset(&props, 0, sizeof(struct backlight_properties));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = machinfo->max_intensity;
-	kb3886_backlight_device = backlight_device_register("kb3886-bl",
-							    &pdev->dev, NULL,
-							    &kb3886bl_ops,
-							    &props);
+	kb3886_backlight_device = devm_backlight_device_register(&pdev->dev,
+							"kb3886-bl", &pdev->dev,
+							NULL, &kb3886bl_ops,
+							&props);
 	if (IS_ERR(kb3886_backlight_device))
 		return PTR_ERR(kb3886_backlight_device);
 
@@ -166,18 +166,8 @@ static int kb3886bl_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int kb3886bl_remove(struct platform_device *pdev)
-{
-	struct backlight_device *bd = platform_get_drvdata(pdev);
-
-	backlight_device_unregister(bd);
-
-	return 0;
-}
-
 static struct platform_driver kb3886bl_driver = {
 	.probe		= kb3886bl_probe,
-	.remove		= kb3886bl_remove,
 	.driver		= {
 		.name	= "kb3886-bl",
 		.pm	= &kb3886bl_pm_ops,
-- 
cgit 


From e86c7098942d6446004ccf89a81c93328d93446a Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:18 -0800
Subject: backlight: lm3533_bl: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/lm3533_bl.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/video/backlight/lm3533_bl.c b/drivers/video/backlight/lm3533_bl.c
index 93eea65f4cf9..187d1c283c1d 100644
--- a/drivers/video/backlight/lm3533_bl.c
+++ b/drivers/video/backlight/lm3533_bl.c
@@ -313,8 +313,9 @@ static int lm3533_bl_probe(struct platform_device *pdev)
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = LM3533_BL_MAX_BRIGHTNESS;
 	props.brightness = pdata->default_brightness;
-	bd = backlight_device_register(pdata->name, pdev->dev.parent, bl,
-						&lm3533_bl_ops, &props);
+	bd = devm_backlight_device_register(&pdev->dev, pdata->name,
+					pdev->dev.parent, bl, &lm3533_bl_ops,
+					&props);
 	if (IS_ERR(bd)) {
 		dev_err(&pdev->dev, "failed to register backlight device\n");
 		return PTR_ERR(bd);
@@ -328,7 +329,7 @@ static int lm3533_bl_probe(struct platform_device *pdev)
 	ret = sysfs_create_group(&bd->dev.kobj, &lm3533_bl_attribute_group);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to create sysfs attributes\n");
-		goto err_unregister;
+		return ret;
 	}
 
 	backlight_update_status(bd);
@@ -345,8 +346,6 @@ static int lm3533_bl_probe(struct platform_device *pdev)
 
 err_sysfs_remove:
 	sysfs_remove_group(&bd->dev.kobj, &lm3533_bl_attribute_group);
-err_unregister:
-	backlight_device_unregister(bd);
 
 	return ret;
 }
@@ -363,7 +362,6 @@ static int lm3533_bl_remove(struct platform_device *pdev)
 
 	lm3533_ctrlbank_disable(&bl->cb);
 	sysfs_remove_group(&bd->dev.kobj, &lm3533_bl_attribute_group);
-	backlight_device_unregister(bd);
 
 	return 0;
 }
-- 
cgit 


From 6255e8e9849767bcc9c9074aff7c0ec4f6e06c88 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:19 -0800
Subject: backlight: lp855x: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler.  Also,
unnecessary lp855x_backlight_unregister() is removed.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/lp855x_bl.c | 20 ++++----------------
 1 file changed, 4 insertions(+), 16 deletions(-)

diff --git a/drivers/video/backlight/lp855x_bl.c b/drivers/video/backlight/lp855x_bl.c
index 57f005a9b475..cae80d555e84 100644
--- a/drivers/video/backlight/lp855x_bl.c
+++ b/drivers/video/backlight/lp855x_bl.c
@@ -300,7 +300,7 @@ static int lp855x_backlight_register(struct lp855x *lp)
 
 	props.brightness = pdata->initial_brightness;
 
-	bl = backlight_device_register(name, lp->dev, lp,
+	bl = devm_backlight_device_register(lp->dev, name, lp->dev, lp,
 				       &lp855x_bl_ops, &props);
 	if (IS_ERR(bl))
 		return PTR_ERR(bl);
@@ -310,12 +310,6 @@ static int lp855x_backlight_register(struct lp855x *lp)
 	return 0;
 }
 
-static void lp855x_backlight_unregister(struct lp855x *lp)
-{
-	if (lp->bl)
-		backlight_device_unregister(lp->bl);
-}
-
 static ssize_t lp855x_get_chip_id(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
@@ -439,29 +433,24 @@ static int lp855x_probe(struct i2c_client *cl, const struct i2c_device_id *id)
 	ret = lp855x_configure(lp);
 	if (ret) {
 		dev_err(lp->dev, "device config err: %d", ret);
-		goto err_dev;
+		return ret;
 	}
 
 	ret = lp855x_backlight_register(lp);
 	if (ret) {
 		dev_err(lp->dev,
 			"failed to register backlight. err: %d\n", ret);
-		goto err_dev;
+		return ret;
 	}
 
 	ret = sysfs_create_group(&lp->dev->kobj, &lp855x_attr_group);
 	if (ret) {
 		dev_err(lp->dev, "failed to register sysfs. err: %d\n", ret);
-		goto err_sysfs;
+		return ret;
 	}
 
 	backlight_update_status(lp->bl);
 	return 0;
-
-err_sysfs:
-	lp855x_backlight_unregister(lp);
-err_dev:
-	return ret;
 }
 
 static int lp855x_remove(struct i2c_client *cl)
@@ -471,7 +460,6 @@ static int lp855x_remove(struct i2c_client *cl)
 	lp->bl->props.brightness = 0;
 	backlight_update_status(lp->bl);
 	sysfs_remove_group(&lp->dev->kobj, &lp855x_attr_group);
-	lp855x_backlight_unregister(lp);
 
 	return 0;
 }
-- 
cgit 


From e924c2aadfbd18a38bcc805f32e5ffc1bdad4ad7 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:20 -0800
Subject: backlight: lv5207lp: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/lv5207lp.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/drivers/video/backlight/lv5207lp.c b/drivers/video/backlight/lv5207lp.c
index 8091a28b2405..1802b2d1357d 100644
--- a/drivers/video/backlight/lv5207lp.c
+++ b/drivers/video/backlight/lv5207lp.c
@@ -124,9 +124,9 @@ static int lv5207lp_probe(struct i2c_client *client,
 	props.brightness = clamp_t(unsigned int, pdata->def_value, 0,
 				   props.max_brightness);
 
-	backlight = backlight_device_register(dev_name(&client->dev),
-					      &lv->client->dev, lv,
-					      &lv5207lp_backlight_ops, &props);
+	backlight = devm_backlight_device_register(&client->dev,
+				dev_name(&client->dev), &lv->client->dev,
+				lv, &lv5207lp_backlight_ops, &props);
 	if (IS_ERR(backlight)) {
 		dev_err(&client->dev, "failed to register backlight\n");
 		return PTR_ERR(backlight);
@@ -144,7 +144,6 @@ static int lv5207lp_remove(struct i2c_client *client)
 
 	backlight->props.brightness = 0;
 	backlight_update_status(backlight);
-	backlight_device_unregister(backlight);
 
 	return 0;
 }
-- 
cgit 


From 18d9dbce468135c07ab57d2a53b406b9d1e05f18 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:21 -0800
Subject: backlight: max8925_bl: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler, and
remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/max8925_bl.c | 17 +++--------------
 1 file changed, 3 insertions(+), 14 deletions(-)

diff --git a/drivers/video/backlight/max8925_bl.c b/drivers/video/backlight/max8925_bl.c
index 886e797f75f9..66fa08c920d2 100644
--- a/drivers/video/backlight/max8925_bl.c
+++ b/drivers/video/backlight/max8925_bl.c
@@ -163,7 +163,8 @@ static int max8925_backlight_probe(struct platform_device *pdev)
 	memset(&props, 0, sizeof(struct backlight_properties));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = MAX_BRIGHTNESS;
-	bl = backlight_device_register("max8925-backlight", &pdev->dev, data,
+	bl = devm_backlight_device_register(&pdev->dev, "max8925-backlight",
+					&pdev->dev, data,
 					&max8925_backlight_ops, &props);
 	if (IS_ERR(bl)) {
 		dev_err(&pdev->dev, "failed to register backlight\n");
@@ -188,20 +189,9 @@ static int max8925_backlight_probe(struct platform_device *pdev)
 	}
 	ret = max8925_set_bits(chip->i2c, data->reg_mode_cntl, 0xfe, value);
 	if (ret < 0)
-		goto out_brt;
+		return ret;
 	backlight_update_status(bl);
 	return 0;
-out_brt:
-	backlight_device_unregister(bl);
-	return ret;
-}
-
-static int max8925_backlight_remove(struct platform_device *pdev)
-{
-	struct backlight_device *bl = platform_get_drvdata(pdev);
-
-	backlight_device_unregister(bl);
-	return 0;
 }
 
 static struct platform_driver max8925_backlight_driver = {
@@ -210,7 +200,6 @@ static struct platform_driver max8925_backlight_driver = {
 		.owner	= THIS_MODULE,
 	},
 	.probe		= max8925_backlight_probe,
-	.remove		= max8925_backlight_remove,
 };
 
 module_platform_driver(max8925_backlight_driver);
-- 
cgit 


From 75d4baec9becbf1ed9c8804bd94004622f38cb11 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:22 -0800
Subject: backlight: pandora_bl: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler, and
remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/pandora_bl.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/video/backlight/pandora_bl.c b/drivers/video/backlight/pandora_bl.c
index 633b0a22fd64..2098c5d6efb9 100644
--- a/drivers/video/backlight/pandora_bl.c
+++ b/drivers/video/backlight/pandora_bl.c
@@ -120,8 +120,8 @@ static int pandora_backlight_probe(struct platform_device *pdev)
 	memset(&props, 0, sizeof(props));
 	props.max_brightness = MAX_USER_VALUE;
 	props.type = BACKLIGHT_RAW;
-	bl = backlight_device_register(pdev->name, &pdev->dev,
-			NULL, &pandora_backlight_ops, &props);
+	bl = devm_backlight_device_register(&pdev->dev, pdev->name, &pdev->dev,
+					NULL, &pandora_backlight_ops, &props);
 	if (IS_ERR(bl)) {
 		dev_err(&pdev->dev, "failed to register backlight\n");
 		return PTR_ERR(bl);
@@ -145,20 +145,12 @@ static int pandora_backlight_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int pandora_backlight_remove(struct platform_device *pdev)
-{
-	struct backlight_device *bl = platform_get_drvdata(pdev);
-	backlight_device_unregister(bl);
-	return 0;
-}
-
 static struct platform_driver pandora_backlight_driver = {
 	.driver		= {
 		.name	= "pandora-backlight",
 		.owner	= THIS_MODULE,
 	},
 	.probe		= pandora_backlight_probe,
-	.remove		= pandora_backlight_remove,
 };
 
 module_platform_driver(pandora_backlight_driver);
-- 
cgit 


From c423a7712170f2ce51a71cc117cd2d588664bebe Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:23 -0800
Subject: backlight: pcf50633: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler, and
remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/pcf50633-backlight.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/video/backlight/pcf50633-backlight.c b/drivers/video/backlight/pcf50633-backlight.c
index b2184cf70b92..b95d3b0aaffe 100644
--- a/drivers/video/backlight/pcf50633-backlight.c
+++ b/drivers/video/backlight/pcf50633-backlight.c
@@ -126,7 +126,8 @@ static int pcf50633_bl_probe(struct platform_device *pdev)
 
 	pcf_bl->pcf = dev_to_pcf50633(pdev->dev.parent);
 
-	pcf_bl->bl = backlight_device_register(pdev->name, &pdev->dev, pcf_bl,
+	pcf_bl->bl = devm_backlight_device_register(&pdev->dev, pdev->name,
+						&pdev->dev, pcf_bl,
 						&pcf50633_bl_ops, &bl_props);
 
 	if (IS_ERR(pcf_bl->bl))
@@ -147,18 +148,8 @@ static int pcf50633_bl_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int pcf50633_bl_remove(struct platform_device *pdev)
-{
-	struct pcf50633_bl *pcf_bl = platform_get_drvdata(pdev);
-
-	backlight_device_unregister(pcf_bl->bl);
-
-	return 0;
-}
-
 static struct platform_driver pcf50633_bl_driver = {
 	.probe =	pcf50633_bl_probe,
-	.remove =	pcf50633_bl_remove,
 	.driver = {
 		.name = "pcf50633-backlight",
 	},
-- 
cgit 


From 626d09089f350f876f965c1e6fa4621498213b1e Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:24 -0800
Subject: backlight: tps65217_bl: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler, and
remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/tps65217_bl.c | 12 +-----------
 1 file changed, 1 insertion(+), 11 deletions(-)

diff --git a/drivers/video/backlight/tps65217_bl.c b/drivers/video/backlight/tps65217_bl.c
index 4ea20394e951..cbba37e6836e 100644
--- a/drivers/video/backlight/tps65217_bl.c
+++ b/drivers/video/backlight/tps65217_bl.c
@@ -313,7 +313,7 @@ static int tps65217_bl_probe(struct platform_device *pdev)
 	bl_props.type = BACKLIGHT_RAW;
 	bl_props.max_brightness = 100;
 
-	tps65217_bl->bl = backlight_device_register(pdev->name,
+	tps65217_bl->bl = devm_backlight_device_register(&pdev->dev, pdev->name,
 						tps65217_bl->dev, tps65217_bl,
 						&tps65217_bl_ops, &bl_props);
 	if (IS_ERR(tps65217_bl->bl)) {
@@ -329,18 +329,8 @@ static int tps65217_bl_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int tps65217_bl_remove(struct platform_device *pdev)
-{
-	struct tps65217_bl *tps65217_bl = platform_get_drvdata(pdev);
-
-	backlight_device_unregister(tps65217_bl->bl);
-
-	return 0;
-}
-
 static struct platform_driver tps65217_bl_driver = {
 	.probe		= tps65217_bl_probe,
-	.remove		= tps65217_bl_remove,
 	.driver		= {
 		.owner	= THIS_MODULE,
 		.name	= "tps65217-bl",
-- 
cgit 


From f369e664498c8e73f24d137f5356bb3492917bc2 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:25 -0800
Subject: backlight: wm831x_bl: use devm_backlight_device_register()

Use devm_backlight_device_register() to make cleanup paths simpler, and
remove unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/wm831x_bl.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/video/backlight/wm831x_bl.c b/drivers/video/backlight/wm831x_bl.c
index 2ccf3206e93f..8b9455e93069 100644
--- a/drivers/video/backlight/wm831x_bl.c
+++ b/drivers/video/backlight/wm831x_bl.c
@@ -195,8 +195,8 @@ static int wm831x_backlight_probe(struct platform_device *pdev)
 	memset(&props, 0, sizeof(props));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = max_isel;
-	bl = backlight_device_register("wm831x", &pdev->dev, data,
-				       &wm831x_backlight_ops, &props);
+	bl = devm_backlight_device_register(&pdev->dev, "wm831x", &pdev->dev,
+					data, &wm831x_backlight_ops, &props);
 	if (IS_ERR(bl)) {
 		dev_err(&pdev->dev, "failed to register backlight\n");
 		return PTR_ERR(bl);
@@ -214,21 +214,12 @@ static int wm831x_backlight_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int wm831x_backlight_remove(struct platform_device *pdev)
-{
-	struct backlight_device *bl = platform_get_drvdata(pdev);
-
-	backlight_device_unregister(bl);
-	return 0;
-}
-
 static struct platform_driver wm831x_backlight_driver = {
 	.driver		= {
 		.name	= "wm831x-backlight",
 		.owner	= THIS_MODULE,
 	},
 	.probe		= wm831x_backlight_probe,
-	.remove		= wm831x_backlight_remove,
 };
 
 module_platform_driver(wm831x_backlight_driver);
-- 
cgit 


From ea5092c890ed093297554e0216188543ee445068 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:25 -0800
Subject: backlight: hx8357: use devm_lcd_device_register()

Use devm_lcd_device_register() to make cleanup paths simpler, and remove
unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/hx8357.c | 18 +++---------------
 1 file changed, 3 insertions(+), 15 deletions(-)

diff --git a/drivers/video/backlight/hx8357.c b/drivers/video/backlight/hx8357.c
index c7af8c45ab8a..0d252e720d13 100644
--- a/drivers/video/backlight/hx8357.c
+++ b/drivers/video/backlight/hx8357.c
@@ -648,7 +648,8 @@ static int hx8357_probe(struct spi_device *spi)
 		lcd->use_im_pins = 0;
 	}
 
-	lcdev = lcd_device_register("mxsfb", &spi->dev, lcd, &hx8357_ops);
+	lcdev = devm_lcd_device_register(&spi->dev, "mxsfb", &spi->dev, lcd,
+					&hx8357_ops);
 	if (IS_ERR(lcdev)) {
 		ret = PTR_ERR(lcdev);
 		return ret;
@@ -660,29 +661,16 @@ static int hx8357_probe(struct spi_device *spi)
 	ret = ((int (*)(struct lcd_device *))match->data)(lcdev);
 	if (ret) {
 		dev_err(&spi->dev, "Couldn't initialize panel\n");
-		goto init_error;
+		return ret;
 	}
 
 	dev_info(&spi->dev, "Panel probed\n");
 
 	return 0;
-
-init_error:
-	lcd_device_unregister(lcdev);
-	return ret;
-}
-
-static int hx8357_remove(struct spi_device *spi)
-{
-	struct lcd_device *lcdev = spi_get_drvdata(spi);
-
-	lcd_device_unregister(lcdev);
-	return 0;
 }
 
 static struct spi_driver hx8357_driver = {
 	.probe  = hx8357_probe,
-	.remove = hx8357_remove,
 	.driver = {
 		.name = "hx8357",
 		.of_match_table = of_match_ptr(hx8357_dt_ids),
-- 
cgit 


From a7e9e3ffd7e80db0d5eb181bc5b3054604db7811 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:26 -0800
Subject: backlight: ili922x: use devm_lcd_device_register()

Use devm_lcd_device_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/ili922x.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/video/backlight/ili922x.c b/drivers/video/backlight/ili922x.c
index d9f65c2d9b01..73464e4b4c74 100644
--- a/drivers/video/backlight/ili922x.c
+++ b/drivers/video/backlight/ili922x.c
@@ -513,8 +513,8 @@ static int ili922x_probe(struct spi_device *spi)
 
 	ili->power = FB_BLANK_POWERDOWN;
 
-	lcd = lcd_device_register("ili922xlcd", &spi->dev, ili,
-				  &ili922x_ops);
+	lcd = devm_lcd_device_register(&spi->dev, "ili922xlcd", &spi->dev, ili,
+					&ili922x_ops);
 	if (IS_ERR(lcd)) {
 		dev_err(&spi->dev, "cannot register LCD\n");
 		return PTR_ERR(lcd);
@@ -530,10 +530,7 @@ static int ili922x_probe(struct spi_device *spi)
 
 static int ili922x_remove(struct spi_device *spi)
 {
-	struct ili922x *ili = spi_get_drvdata(spi);
-
 	ili922x_poweroff(spi);
-	lcd_device_unregister(ili->ld);
 	return 0;
 }
 
-- 
cgit 


From 5690378efa8b232161d4cae5d9650da85c88ab1f Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:27 -0800
Subject: backlight: ili9320: use devm_lcd_device_register()

Use devm_lcd_device_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/ili9320.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/video/backlight/ili9320.c b/drivers/video/backlight/ili9320.c
index 4dd43e079a8d..e2b8b40a9bd9 100644
--- a/drivers/video/backlight/ili9320.c
+++ b/drivers/video/backlight/ili9320.c
@@ -235,7 +235,8 @@ int ili9320_probe_spi(struct spi_device *spi,
 
 	ili9320_setup_spi(ili, spi);
 
-	lcd = lcd_device_register("ili9320", dev, ili, &ili9320_ops);
+	lcd = devm_lcd_device_register(&spi->dev, "ili9320", dev, ili,
+					&ili9320_ops);
 	if (IS_ERR(lcd)) {
 		dev_err(dev, "failed to register lcd device\n");
 		return PTR_ERR(lcd);
@@ -248,24 +249,16 @@ int ili9320_probe_spi(struct spi_device *spi,
 	ret = ili9320_power(ili, FB_BLANK_UNBLANK);
 	if (ret != 0) {
 		dev_err(dev, "failed to set lcd power state\n");
-		goto err_unregister;
+		return ret;
 	}
 
 	return 0;
-
- err_unregister:
-	lcd_device_unregister(lcd);
-
-	return ret;
 }
 EXPORT_SYMBOL_GPL(ili9320_probe_spi);
 
 int ili9320_remove(struct ili9320 *ili)
 {
 	ili9320_power(ili, FB_BLANK_POWERDOWN);
-
-	lcd_device_unregister(ili->lcd);
-
 	return 0;
 }
 EXPORT_SYMBOL_GPL(ili9320_remove);
-- 
cgit 


From 0a1c55d0212661a582e9b4688410ccf9d4b163e8 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:28 -0800
Subject: backlight: lms283gf05: use devm_lcd_device_register()

Use devm_lcd_device_register() to make cleanup paths simpler, and remove
unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/lms283gf05.c | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/drivers/video/backlight/lms283gf05.c b/drivers/video/backlight/lms283gf05.c
index 80b5929d4872..de8832504f68 100644
--- a/drivers/video/backlight/lms283gf05.c
+++ b/drivers/video/backlight/lms283gf05.c
@@ -173,7 +173,8 @@ static int lms283gf05_probe(struct spi_device *spi)
 		return -ENOMEM;
 	}
 
-	ld = lcd_device_register("lms283gf05", &spi->dev, st, &lms_ops);
+	ld = devm_lcd_device_register(&spi->dev, "lms283gf05", &spi->dev, st,
+					&lms_ops);
 	if (IS_ERR(ld))
 		return PTR_ERR(ld);
 
@@ -190,22 +191,12 @@ static int lms283gf05_probe(struct spi_device *spi)
 	return 0;
 }
 
-static int lms283gf05_remove(struct spi_device *spi)
-{
-	struct lms283gf05_state *st = spi_get_drvdata(spi);
-
-	lcd_device_unregister(st->ld);
-
-	return 0;
-}
-
 static struct spi_driver lms283gf05_driver = {
 	.driver = {
 		.name	= "lms283gf05",
 		.owner	= THIS_MODULE,
 	},
 	.probe		= lms283gf05_probe,
-	.remove		= lms283gf05_remove,
 };
 
 module_spi_driver(lms283gf05_driver);
-- 
cgit 


From 8358741ab72a6a15165d1a855304c81beee74240 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:29 -0800
Subject: backlight: lms501kf03: use devm_lcd_device_register()

Use devm_lcd_device_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/lms501kf03.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/video/backlight/lms501kf03.c b/drivers/video/backlight/lms501kf03.c
index ff46e194a117..77258b7b04be 100644
--- a/drivers/video/backlight/lms501kf03.c
+++ b/drivers/video/backlight/lms501kf03.c
@@ -350,8 +350,8 @@ static int lms501kf03_probe(struct spi_device *spi)
 		return -EINVAL;
 	}
 
-	ld = lcd_device_register("lms501kf03", &spi->dev, lcd,
-				&lms501kf03_lcd_ops);
+	ld = devm_lcd_device_register(&spi->dev, "lms501kf03", &spi->dev, lcd,
+					&lms501kf03_lcd_ops);
 	if (IS_ERR(ld))
 		return PTR_ERR(ld);
 
@@ -382,8 +382,6 @@ static int lms501kf03_remove(struct spi_device *spi)
 	struct lms501kf03 *lcd = spi_get_drvdata(spi);
 
 	lms501kf03_power(lcd, FB_BLANK_POWERDOWN);
-	lcd_device_unregister(lcd->ld);
-
 	return 0;
 }
 
-- 
cgit 


From e8796d9f4fde228478ccf953c3f97a58f8e34e48 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:30 -0800
Subject: backlight: ltv350qv: use devm_lcd_device_register()

Use devm_lcd_device_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/ltv350qv.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/video/backlight/ltv350qv.c b/drivers/video/backlight/ltv350qv.c
index ed1b39268131..383f550e165e 100644
--- a/drivers/video/backlight/ltv350qv.c
+++ b/drivers/video/backlight/ltv350qv.c
@@ -242,7 +242,8 @@ static int ltv350qv_probe(struct spi_device *spi)
 	if (!lcd->buffer)
 		return -ENOMEM;
 
-	ld = lcd_device_register("ltv350qv", &spi->dev, lcd, &ltv_ops);
+	ld = devm_lcd_device_register(&spi->dev, "ltv350qv", &spi->dev, lcd,
+					&ltv_ops);
 	if (IS_ERR(ld))
 		return PTR_ERR(ld);
 
@@ -250,15 +251,11 @@ static int ltv350qv_probe(struct spi_device *spi)
 
 	ret = ltv350qv_power(lcd, FB_BLANK_UNBLANK);
 	if (ret)
-		goto out_unregister;
+		return ret;
 
 	spi_set_drvdata(spi, lcd);
 
 	return 0;
-
-out_unregister:
-	lcd_device_unregister(ld);
-	return ret;
 }
 
 static int ltv350qv_remove(struct spi_device *spi)
@@ -266,8 +263,6 @@ static int ltv350qv_remove(struct spi_device *spi)
 	struct ltv350qv *lcd = spi_get_drvdata(spi);
 
 	ltv350qv_power(lcd, FB_BLANK_POWERDOWN);
-	lcd_device_unregister(lcd->ld);
-
 	return 0;
 }
 
-- 
cgit 


From 1f9ca1eee8e93cacf1bff11dc3fdd01b7fd80cd7 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:31 -0800
Subject: backlight: platform_lcd: use devm_lcd_device_register()

Use devm_lcd_device_register() to make cleanup paths simpler, and remove
unnecessary remove().

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/platform_lcd.c | 20 +++-----------------
 1 file changed, 3 insertions(+), 17 deletions(-)

diff --git a/drivers/video/backlight/platform_lcd.c b/drivers/video/backlight/platform_lcd.c
index cc0f0675366e..d01884d4f1bf 100644
--- a/drivers/video/backlight/platform_lcd.c
+++ b/drivers/video/backlight/platform_lcd.c
@@ -101,29 +101,16 @@ static int platform_lcd_probe(struct platform_device *pdev)
 
 	plcd->us = dev;
 	plcd->pdata = pdata;
-	plcd->lcd = lcd_device_register(dev_name(dev), dev,
-					plcd, &platform_lcd_ops);
+	plcd->lcd = devm_lcd_device_register(&pdev->dev, dev_name(dev), dev,
+						plcd, &platform_lcd_ops);
 	if (IS_ERR(plcd->lcd)) {
 		dev_err(dev, "cannot register lcd device\n");
-		err = PTR_ERR(plcd->lcd);
-		goto err;
+		return PTR_ERR(plcd->lcd);
 	}
 
 	platform_set_drvdata(pdev, plcd);
 	platform_lcd_set_power(plcd->lcd, FB_BLANK_NORMAL);
 
-	return 0;
-
- err:
-	return err;
-}
-
-static int platform_lcd_remove(struct platform_device *pdev)
-{
-	struct platform_lcd *plcd = platform_get_drvdata(pdev);
-
-	lcd_device_unregister(plcd->lcd);
-
 	return 0;
 }
 
@@ -168,7 +155,6 @@ static struct platform_driver platform_lcd_driver = {
 		.of_match_table = of_match_ptr(platform_lcd_of_match),
 	},
 	.probe		= platform_lcd_probe,
-	.remove		= platform_lcd_remove,
 };
 
 module_platform_driver(platform_lcd_driver);
-- 
cgit 


From 0524fc5194e548a4fe32d87850b976e0ec4e9007 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:32 -0800
Subject: backlight: tdo24m: use devm_lcd_device_register()

Use devm_lcd_device_register() to make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/tdo24m.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/video/backlight/tdo24m.c b/drivers/video/backlight/tdo24m.c
index 2ccfa46eee7c..908016fc5829 100644
--- a/drivers/video/backlight/tdo24m.c
+++ b/drivers/video/backlight/tdo24m.c
@@ -385,21 +385,17 @@ static int tdo24m_probe(struct spi_device *spi)
 		return -EINVAL;
 	}
 
-	lcd->lcd_dev = lcd_device_register("tdo24m", &spi->dev,
-					lcd, &tdo24m_ops);
+	lcd->lcd_dev = devm_lcd_device_register(&spi->dev, "tdo24m", &spi->dev,
+						lcd, &tdo24m_ops);
 	if (IS_ERR(lcd->lcd_dev))
 		return PTR_ERR(lcd->lcd_dev);
 
 	spi_set_drvdata(spi, lcd);
 	err = tdo24m_power(lcd, FB_BLANK_UNBLANK);
 	if (err)
-		goto out_unregister;
+		return err;
 
 	return 0;
-
-out_unregister:
-	lcd_device_unregister(lcd->lcd_dev);
-	return err;
 }
 
 static int tdo24m_remove(struct spi_device *spi)
@@ -407,8 +403,6 @@ static int tdo24m_remove(struct spi_device *spi)
 	struct tdo24m *lcd = spi_get_drvdata(spi);
 
 	tdo24m_power(lcd, FB_BLANK_POWERDOWN);
-	lcd_device_unregister(lcd->lcd_dev);
-
 	return 0;
 }
 
-- 
cgit 


From ebc41e43b2b72e236019580490044604a48824e5 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:32 -0800
Subject: backlight: ams369fg06: use devm_{backlight,lcd}_device_register()

Use devm_backlight_device_register() and devm_lcd_device_register() to
make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/ams369fg06.c | 22 +++++++---------------
 1 file changed, 7 insertions(+), 15 deletions(-)

diff --git a/drivers/video/backlight/ams369fg06.c b/drivers/video/backlight/ams369fg06.c
index df5507b2b492..d8952c4aa689 100644
--- a/drivers/video/backlight/ams369fg06.c
+++ b/drivers/video/backlight/ams369fg06.c
@@ -477,8 +477,8 @@ static int ams369fg06_probe(struct spi_device *spi)
 		return -EINVAL;
 	}
 
-	ld = lcd_device_register("ams369fg06", &spi->dev, lcd,
-		&ams369fg06_lcd_ops);
+	ld = devm_lcd_device_register(&spi->dev, "ams369fg06", &spi->dev, lcd,
+					&ams369fg06_lcd_ops);
 	if (IS_ERR(ld))
 		return PTR_ERR(ld);
 
@@ -488,12 +488,11 @@ static int ams369fg06_probe(struct spi_device *spi)
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = MAX_BRIGHTNESS;
 
-	bd = backlight_device_register("ams369fg06-bl", &spi->dev, lcd,
-		&ams369fg06_backlight_ops, &props);
-	if (IS_ERR(bd)) {
-		ret =  PTR_ERR(bd);
-		goto out_lcd_unregister;
-	}
+	bd = devm_backlight_device_register(&spi->dev, "ams369fg06-bl",
+					&spi->dev, lcd,
+					&ams369fg06_backlight_ops, &props);
+	if (IS_ERR(bd))
+		return PTR_ERR(bd);
 
 	bd->props.brightness = DEFAULT_BRIGHTNESS;
 	lcd->bd = bd;
@@ -516,10 +515,6 @@ static int ams369fg06_probe(struct spi_device *spi)
 	dev_info(&spi->dev, "ams369fg06 panel driver has been probed.\n");
 
 	return 0;
-
-out_lcd_unregister:
-	lcd_device_unregister(ld);
-	return ret;
 }
 
 static int ams369fg06_remove(struct spi_device *spi)
@@ -527,9 +522,6 @@ static int ams369fg06_remove(struct spi_device *spi)
 	struct ams369fg06 *lcd = spi_get_drvdata(spi);
 
 	ams369fg06_power(lcd, FB_BLANK_POWERDOWN);
-	backlight_device_unregister(lcd->bd);
-	lcd_device_unregister(lcd->ld);
-
 	return 0;
 }
 
-- 
cgit 


From 7a78e1b24b993b3af257d4d4f10fa7bd0913deaa Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:33 -0800
Subject: backlight: ld9040: use devm_{backlight,lcd}_device_register()

Use devm_backlight_device_register() and devm_lcd_device_register() to
make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/ld9040.c | 21 ++++++---------------
 1 file changed, 6 insertions(+), 15 deletions(-)

diff --git a/drivers/video/backlight/ld9040.c b/drivers/video/backlight/ld9040.c
index 26d5139b0696..506a6c236039 100644
--- a/drivers/video/backlight/ld9040.c
+++ b/drivers/video/backlight/ld9040.c
@@ -716,7 +716,8 @@ static int ld9040_probe(struct spi_device *spi)
 		return ret;
 	}
 
-	ld = lcd_device_register("ld9040", &spi->dev, lcd, &ld9040_lcd_ops);
+	ld = devm_lcd_device_register(&spi->dev, "ld9040", &spi->dev, lcd,
+					&ld9040_lcd_ops);
 	if (IS_ERR(ld))
 		return PTR_ERR(ld);
 
@@ -726,12 +727,10 @@ static int ld9040_probe(struct spi_device *spi)
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = MAX_BRIGHTNESS;
 
-	bd = backlight_device_register("ld9040-bl", &spi->dev,
-		lcd, &ld9040_backlight_ops, &props);
-	if (IS_ERR(bd)) {
-		ret = PTR_ERR(bd);
-		goto out_unregister_lcd;
-	}
+	bd = devm_backlight_device_register(&spi->dev, "ld9040-bl", &spi->dev,
+					lcd, &ld9040_backlight_ops, &props);
+	if (IS_ERR(bd))
+		return PTR_ERR(bd);
 
 	bd->props.brightness = MAX_BRIGHTNESS;
 	lcd->bd = bd;
@@ -757,11 +756,6 @@ static int ld9040_probe(struct spi_device *spi)
 
 	dev_info(&spi->dev, "ld9040 panel driver has been probed.\n");
 	return 0;
-
-out_unregister_lcd:
-	lcd_device_unregister(lcd->ld);
-
-	return ret;
 }
 
 static int ld9040_remove(struct spi_device *spi)
@@ -769,9 +763,6 @@ static int ld9040_remove(struct spi_device *spi)
 	struct ld9040 *lcd = spi_get_drvdata(spi);
 
 	ld9040_power(lcd, FB_BLANK_POWERDOWN);
-	backlight_device_unregister(lcd->bd);
-	lcd_device_unregister(lcd->ld);
-
 	return 0;
 }
 
-- 
cgit 


From 10645a1d1878cf4c1dde0398a6d6e82aed06ab4a Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:34 -0800
Subject: backlight: corgi_lcd: use devm_{backlight,lcd}_device_register()

Use devm_backlight_device_register() and devm_lcd_device_register() to
make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/corgi_lcd.c | 28 +++++++++-------------------
 1 file changed, 9 insertions(+), 19 deletions(-)

diff --git a/drivers/video/backlight/corgi_lcd.c b/drivers/video/backlight/corgi_lcd.c
index be56cfe03845..db8db5fa6583 100644
--- a/drivers/video/backlight/corgi_lcd.c
+++ b/drivers/video/backlight/corgi_lcd.c
@@ -550,8 +550,8 @@ static int corgi_lcd_probe(struct spi_device *spi)
 
 	lcd->spi_dev = spi;
 
-	lcd->lcd_dev = lcd_device_register("corgi_lcd", &spi->dev,
-					lcd, &corgi_lcd_ops);
+	lcd->lcd_dev = devm_lcd_device_register(&spi->dev, "corgi_lcd",
+						&spi->dev, lcd, &corgi_lcd_ops);
 	if (IS_ERR(lcd->lcd_dev))
 		return PTR_ERR(lcd->lcd_dev);
 
@@ -561,18 +561,18 @@ static int corgi_lcd_probe(struct spi_device *spi)
 	memset(&props, 0, sizeof(struct backlight_properties));
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = pdata->max_intensity;
-	lcd->bl_dev = backlight_device_register("corgi_bl", &spi->dev, lcd,
-						&corgi_bl_ops, &props);
-	if (IS_ERR(lcd->bl_dev)) {
-		ret = PTR_ERR(lcd->bl_dev);
-		goto err_unregister_lcd;
-	}
+	lcd->bl_dev = devm_backlight_device_register(&spi->dev, "corgi_bl",
+						&spi->dev, lcd, &corgi_bl_ops,
+						&props);
+	if (IS_ERR(lcd->bl_dev))
+		return PTR_ERR(lcd->bl_dev);
+
 	lcd->bl_dev->props.brightness = pdata->default_intensity;
 	lcd->bl_dev->props.power = FB_BLANK_UNBLANK;
 
 	ret = setup_gpio_backlight(lcd, pdata);
 	if (ret)
-		goto err_unregister_bl;
+		return ret;
 
 	lcd->kick_battery = pdata->kick_battery;
 
@@ -583,12 +583,6 @@ static int corgi_lcd_probe(struct spi_device *spi)
 	lcd->limit_mask = pdata->limit_mask;
 	the_corgi_lcd = lcd;
 	return 0;
-
-err_unregister_bl:
-	backlight_device_unregister(lcd->bl_dev);
-err_unregister_lcd:
-	lcd_device_unregister(lcd->lcd_dev);
-	return ret;
 }
 
 static int corgi_lcd_remove(struct spi_device *spi)
@@ -598,11 +592,7 @@ static int corgi_lcd_remove(struct spi_device *spi)
 	lcd->bl_dev->props.power = FB_BLANK_UNBLANK;
 	lcd->bl_dev->props.brightness = 0;
 	backlight_update_status(lcd->bl_dev);
-	backlight_device_unregister(lcd->bl_dev);
-
 	corgi_lcd_set_power(lcd->lcd_dev, FB_BLANK_POWERDOWN);
-	lcd_device_unregister(lcd->lcd_dev);
-
 	return 0;
 }
 
-- 
cgit 


From 289a65e46b0eb57a5c8f54b4881b93d6ebed9f4e Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:35 -0800
Subject: backlight: cr_bllcd: use devm_{backlight,lcd}_device_register()

Use devm_backlight_device_register() and devm_lcd_device_register() to
make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/cr_bllcd.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/video/backlight/cr_bllcd.c b/drivers/video/backlight/cr_bllcd.c
index 37bae801e23b..f3fed9ef745f 100644
--- a/drivers/video/backlight/cr_bllcd.c
+++ b/drivers/video/backlight/cr_bllcd.c
@@ -195,16 +195,17 @@ static int cr_backlight_probe(struct platform_device *pdev)
 
 	memset(&props, 0, sizeof(struct backlight_properties));
 	props.type = BACKLIGHT_RAW;
-	bdp = backlight_device_register("cr-backlight", &pdev->dev, NULL,
-					&cr_backlight_ops, &props);
+	bdp = devm_backlight_device_register(&pdev->dev, "cr-backlight",
+					&pdev->dev, NULL, &cr_backlight_ops,
+					&props);
 	if (IS_ERR(bdp)) {
 		pci_dev_put(lpc_dev);
 		return PTR_ERR(bdp);
 	}
 
-	ldp = lcd_device_register("cr-lcd", &pdev->dev, NULL, &cr_lcd_ops);
+	ldp = devm_lcd_device_register(&pdev->dev, "cr-lcd", &pdev->dev, NULL,
+					&cr_lcd_ops);
 	if (IS_ERR(ldp)) {
-		backlight_device_unregister(bdp);
 		pci_dev_put(lpc_dev);
 		return PTR_ERR(ldp);
 	}
@@ -215,8 +216,6 @@ static int cr_backlight_probe(struct platform_device *pdev)
 
 	crp = devm_kzalloc(&pdev->dev, sizeof(*crp), GFP_KERNEL);
 	if (!crp) {
-		lcd_device_unregister(ldp);
-		backlight_device_unregister(bdp);
 		pci_dev_put(lpc_dev);
 		return -ENOMEM;
 	}
@@ -241,8 +240,6 @@ static int cr_backlight_remove(struct platform_device *pdev)
 	crp->cr_backlight_device->props.max_brightness = 0;
 	cr_backlight_set_intensity(crp->cr_backlight_device);
 	cr_lcd_set_power(crp->cr_lcd_device, FB_BLANK_POWERDOWN);
-	backlight_device_unregister(crp->cr_backlight_device);
-	lcd_device_unregister(crp->cr_lcd_device);
 	pci_dev_put(lpc_dev);
 
 	return 0;
-- 
cgit 


From a18863f5e83881e3ed1f4ee92496898045e1f5c3 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:09:36 -0800
Subject: backlight: s6e63m0: use devm_{backlight,lcd}_device_register()

Use devm_backlight_device_register() and devm_lcd_device_register() to
make cleanup paths simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/s6e63m0.c | 20 +++++++-------------
 1 file changed, 7 insertions(+), 13 deletions(-)

diff --git a/drivers/video/backlight/s6e63m0.c b/drivers/video/backlight/s6e63m0.c
index 4e339adc1f57..510a1bcf76f1 100644
--- a/drivers/video/backlight/s6e63m0.c
+++ b/drivers/video/backlight/s6e63m0.c
@@ -741,7 +741,8 @@ static int s6e63m0_probe(struct spi_device *spi)
 		return -EINVAL;
 	}
 
-	ld = lcd_device_register("s6e63m0", &spi->dev, lcd, &s6e63m0_lcd_ops);
+	ld = devm_lcd_device_register(&spi->dev, "s6e63m0", &spi->dev, lcd,
+				&s6e63m0_lcd_ops);
 	if (IS_ERR(ld))
 		return PTR_ERR(ld);
 
@@ -751,12 +752,11 @@ static int s6e63m0_probe(struct spi_device *spi)
 	props.type = BACKLIGHT_RAW;
 	props.max_brightness = MAX_BRIGHTNESS;
 
-	bd = backlight_device_register("s6e63m0bl-bl", &spi->dev, lcd,
-		&s6e63m0_backlight_ops, &props);
-	if (IS_ERR(bd)) {
-		ret =  PTR_ERR(bd);
-		goto out_lcd_unregister;
-	}
+	bd = devm_backlight_device_register(&spi->dev, "s6e63m0bl-bl",
+					&spi->dev, lcd, &s6e63m0_backlight_ops,
+					&props);
+	if (IS_ERR(bd))
+		return PTR_ERR(bd);
 
 	bd->props.brightness = MAX_BRIGHTNESS;
 	lcd->bd = bd;
@@ -798,10 +798,6 @@ static int s6e63m0_probe(struct spi_device *spi)
 	dev_info(&spi->dev, "s6e63m0 panel driver has been probed.\n");
 
 	return 0;
-
-out_lcd_unregister:
-	lcd_device_unregister(ld);
-	return ret;
 }
 
 static int s6e63m0_remove(struct spi_device *spi)
@@ -811,8 +807,6 @@ static int s6e63m0_remove(struct spi_device *spi)
 	s6e63m0_power(lcd, FB_BLANK_POWERDOWN);
 	device_remove_file(&spi->dev, &dev_attr_gamma_table);
 	device_remove_file(&spi->dev, &dev_attr_gamma_mode);
-	backlight_device_unregister(lcd->bd);
-	lcd_device_unregister(lcd->ld);
 
 	return 0;
 }
-- 
cgit 


From bcd5b4165645eb44c781bca456c11c0478546161 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Tue, 12 Nov 2013 15:09:37 -0800
Subject: drivers/video/backlight/lm3630a_bl.c: add missing destroy_workqueue()
 on error in lm3630a_intr_config()

Add the missing destroy_workqueue() before return from
lm3630a_intr_config() in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/lm3630a_bl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/video/backlight/lm3630a_bl.c b/drivers/video/backlight/lm3630a_bl.c
index 999075a48863..35fe4825a454 100644
--- a/drivers/video/backlight/lm3630a_bl.c
+++ b/drivers/video/backlight/lm3630a_bl.c
@@ -154,6 +154,7 @@ static int lm3630a_intr_config(struct lm3630a_chip *pchip)
 	    (pchip->irq, NULL, lm3630a_isr_func,
 	     IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "lm3630a_irq", pchip)) {
 		dev_err(pchip->dev, "request threaded irq fail\n");
+		destroy_workqueue(pchip->irqthread);
 		return -ENOMEM;
 	}
 	return rval;
-- 
cgit 


From 185d91442550110db67a7dc794a32efcea455a36 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Tue, 12 Nov 2013 15:09:38 -0800
Subject: backlight: atmel-pwm-bl: fix reported brightness

The driver supports 16-bit brightness values, but the value returned
from get_brightness was truncated to eight bits.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/atmel-pwm-bl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c
index 66885fbb8e97..0971a8e78fbd 100644
--- a/drivers/video/backlight/atmel-pwm-bl.c
+++ b/drivers/video/backlight/atmel-pwm-bl.c
@@ -70,7 +70,7 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device *bd)
 static int atmel_pwm_bl_get_intensity(struct backlight_device *bd)
 {
 	struct atmel_pwm_bl *pwmbl = bl_get_data(bd);
-	u8 intensity;
+	u32 intensity;
 
 	if (pwmbl->pdata->pwm_active_low) {
 		intensity = pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) -
@@ -80,7 +80,7 @@ static int atmel_pwm_bl_get_intensity(struct backlight_device *bd)
 			pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY);
 	}
 
-	return intensity;
+	return intensity & 0xffff;
 }
 
 static int atmel_pwm_bl_init_pwm(struct atmel_pwm_bl *pwmbl)
-- 
cgit 


From ad5066d4c2b1d696749f8d7816357c23b648c4d3 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Tue, 12 Nov 2013 15:09:39 -0800
Subject: backlight: atmel-pwm-bl: fix gpio polarity in remove

Make sure to honour gpio polarity also at remove so that the backlight is
actually disabled on boards with active-low enable pin.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/atmel-pwm-bl.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c
index 0971a8e78fbd..e21beb6ad943 100644
--- a/drivers/video/backlight/atmel-pwm-bl.c
+++ b/drivers/video/backlight/atmel-pwm-bl.c
@@ -205,8 +205,10 @@ static int atmel_pwm_bl_remove(struct platform_device *pdev)
 {
 	struct atmel_pwm_bl *pwmbl = platform_get_drvdata(pdev);
 
-	if (pwmbl->gpio_on != -1)
-		gpio_set_value(pwmbl->gpio_on, 0);
+	if (pwmbl->gpio_on != -1) {
+		gpio_set_value(pwmbl->gpio_on,
+					0 ^ pwmbl->pdata->on_active_low);
+	}
 	pwm_channel_disable(&pwmbl->pwmc);
 	pwm_channel_free(&pwmbl->pwmc);
 
-- 
cgit 


From 5c057e5570f18b9d0f4eea99e0a0d55ad5f30e36 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Tue, 12 Nov 2013 15:09:40 -0800
Subject: backlight: atmel-pwm-bl: fix module autoload

Add missing module alias which is needed for module autoloading.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/atmel-pwm-bl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c
index e21beb6ad943..4886028c9eaa 100644
--- a/drivers/video/backlight/atmel-pwm-bl.c
+++ b/drivers/video/backlight/atmel-pwm-bl.c
@@ -229,3 +229,4 @@ module_platform_driver(atmel_pwm_bl_driver);
 MODULE_AUTHOR("Hans-Christian egtvedt <hans-christian.egtvedt@atmel.com>");
 MODULE_DESCRIPTION("Atmel PWM backlight driver");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:atmel-pwm-bl");
-- 
cgit 


From ce726c9738a27ee32a00136cc512b1058044a0fe Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Tue, 12 Nov 2013 15:09:41 -0800
Subject: backlight: atmel-pwm-bl: clean up probe error handling

Clean up probe error handling by checking parameters before any
allocations and removing an obsolete error label.  Also remove unnecessary
reset of private gpio number.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/atmel-pwm-bl.c | 31 ++++++++++++-------------------
 1 file changed, 12 insertions(+), 19 deletions(-)

diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c
index 4886028c9eaa..01af5c2d028a 100644
--- a/drivers/video/backlight/atmel-pwm-bl.c
+++ b/drivers/video/backlight/atmel-pwm-bl.c
@@ -126,40 +126,33 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev)
 	struct atmel_pwm_bl *pwmbl;
 	int retval;
 
+	pdata = dev_get_platdata(&pdev->dev);
+	if (!pdata)
+		return -ENODEV;
+
+	if (pdata->pwm_compare_max < pdata->pwm_duty_max ||
+			pdata->pwm_duty_min > pdata->pwm_duty_max ||
+			pdata->pwm_frequency == 0)
+		return -EINVAL;
+
 	pwmbl = devm_kzalloc(&pdev->dev, sizeof(struct atmel_pwm_bl),
 				GFP_KERNEL);
 	if (!pwmbl)
 		return -ENOMEM;
 
 	pwmbl->pdev = pdev;
-
-	pdata = dev_get_platdata(&pdev->dev);
-	if (!pdata) {
-		retval = -ENODEV;
-		goto err_free_mem;
-	}
-
-	if (pdata->pwm_compare_max < pdata->pwm_duty_max ||
-			pdata->pwm_duty_min > pdata->pwm_duty_max ||
-			pdata->pwm_frequency == 0) {
-		retval = -EINVAL;
-		goto err_free_mem;
-	}
-
 	pwmbl->pdata = pdata;
 	pwmbl->gpio_on = pdata->gpio_on;
 
 	retval = pwm_channel_alloc(pdata->pwm_channel, &pwmbl->pwmc);
 	if (retval)
-		goto err_free_mem;
+		return retval;
 
 	if (pwmbl->gpio_on != -1) {
 		retval = devm_gpio_request(&pdev->dev, pwmbl->gpio_on,
 					"gpio_atmel_pwm_bl");
-		if (retval) {
-			pwmbl->gpio_on = -1;
+		if (retval)
 			goto err_free_pwm;
-		}
 
 		/* Turn display off by default. */
 		retval = gpio_direction_output(pwmbl->gpio_on,
@@ -197,7 +190,7 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev)
 
 err_free_pwm:
 	pwm_channel_free(&pwmbl->pwmc);
-err_free_mem:
+
 	return retval;
 }
 
-- 
cgit 


From 9a26a84e3f77850ab80dbb9fb7f9821109f38f12 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Tue, 12 Nov 2013 15:09:42 -0800
Subject: backlight: atmel-pwm-bl: clean up get_intensity

Clean up get_intensity to increase readability.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/atmel-pwm-bl.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c
index 01af5c2d028a..abfaada0b6ca 100644
--- a/drivers/video/backlight/atmel-pwm-bl.c
+++ b/drivers/video/backlight/atmel-pwm-bl.c
@@ -70,15 +70,14 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device *bd)
 static int atmel_pwm_bl_get_intensity(struct backlight_device *bd)
 {
 	struct atmel_pwm_bl *pwmbl = bl_get_data(bd);
+	u32 cdty;
 	u32 intensity;
 
-	if (pwmbl->pdata->pwm_active_low) {
-		intensity = pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY) -
-			pwmbl->pdata->pwm_duty_min;
-	} else {
-		intensity = pwmbl->pdata->pwm_duty_max -
-			pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY);
-	}
+	cdty = pwm_channel_readl(&pwmbl->pwmc, PWM_CDTY);
+	if (pwmbl->pdata->pwm_active_low)
+		intensity = cdty - pwmbl->pdata->pwm_duty_min;
+	else
+		intensity = pwmbl->pdata->pwm_duty_max - cdty;
 
 	return intensity & 0xffff;
 }
-- 
cgit 


From 7bb8abe6ed58835c58153d59e4b13513b7306802 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Tue, 12 Nov 2013 15:09:43 -0800
Subject: backlight: atmel-pwm-bl: remove unused include

Remove unused include of clk.h.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/atmel-pwm-bl.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c
index abfaada0b6ca..bfd6a9680936 100644
--- a/drivers/video/backlight/atmel-pwm-bl.c
+++ b/drivers/video/backlight/atmel-pwm-bl.c
@@ -12,7 +12,6 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/fb.h>
-#include <linux/clk.h>
 #include <linux/gpio.h>
 #include <linux/backlight.h>
 #include <linux/atmel_pwm.h>
-- 
cgit 


From 5ada4550e86b081b889bced50e5ab6c510f9cdd7 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Tue, 12 Nov 2013 15:09:44 -0800
Subject: backlight: atmel-pwm-bl: use gpio_is_valid

Use gpio_is_valid rather than open coding the more restrictive != -1
test.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/atmel-pwm-bl.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c
index bfd6a9680936..c2542095a04c 100644
--- a/drivers/video/backlight/atmel-pwm-bl.c
+++ b/drivers/video/backlight/atmel-pwm-bl.c
@@ -48,7 +48,7 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device *bd)
 		pwm_duty = pwmbl->pdata->pwm_duty_min;
 
 	if (!intensity) {
-		if (pwmbl->gpio_on != -1) {
+		if (gpio_is_valid(pwmbl->gpio_on)) {
 			gpio_set_value(pwmbl->gpio_on,
 					0 ^ pwmbl->pdata->on_active_low);
 		}
@@ -57,7 +57,7 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device *bd)
 	} else {
 		pwm_channel_enable(&pwmbl->pwmc);
 		pwm_channel_writel(&pwmbl->pwmc, PWM_CUPD, pwm_duty);
-		if (pwmbl->gpio_on != -1) {
+		if (gpio_is_valid(pwmbl->gpio_on)) {
 			gpio_set_value(pwmbl->gpio_on,
 					1 ^ pwmbl->pdata->on_active_low);
 		}
@@ -146,7 +146,7 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev)
 	if (retval)
 		return retval;
 
-	if (pwmbl->gpio_on != -1) {
+	if (gpio_is_valid(pwmbl->gpio_on)) {
 		retval = devm_gpio_request(&pdev->dev, pwmbl->gpio_on,
 					"gpio_atmel_pwm_bl");
 		if (retval)
@@ -196,7 +196,7 @@ static int atmel_pwm_bl_remove(struct platform_device *pdev)
 {
 	struct atmel_pwm_bl *pwmbl = platform_get_drvdata(pdev);
 
-	if (pwmbl->gpio_on != -1) {
+	if (gpio_is_valid(pwmbl->gpio_on)) {
 		gpio_set_value(pwmbl->gpio_on,
 					0 ^ pwmbl->pdata->on_active_low);
 	}
-- 
cgit 


From 81b62db56dbdfef8f3b596dc2845df7ee3ab2165 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Tue, 12 Nov 2013 15:09:45 -0800
Subject: backlight: atmel-pwm-bl: refactor gpio_on handling

Add helper function to control the gpio_on signal.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/atmel-pwm-bl.c | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c
index c2542095a04c..bd1ed342f87a 100644
--- a/drivers/video/backlight/atmel-pwm-bl.c
+++ b/drivers/video/backlight/atmel-pwm-bl.c
@@ -26,6 +26,14 @@ struct atmel_pwm_bl {
 	int					gpio_on;
 };
 
+static void atmel_pwm_bl_set_gpio_on(struct atmel_pwm_bl *pwmbl, int on)
+{
+	if (!gpio_is_valid(pwmbl->gpio_on))
+		return;
+
+	gpio_set_value(pwmbl->gpio_on, on ^ pwmbl->pdata->on_active_low);
+}
+
 static int atmel_pwm_bl_set_intensity(struct backlight_device *bd)
 {
 	struct atmel_pwm_bl *pwmbl = bl_get_data(bd);
@@ -48,19 +56,13 @@ static int atmel_pwm_bl_set_intensity(struct backlight_device *bd)
 		pwm_duty = pwmbl->pdata->pwm_duty_min;
 
 	if (!intensity) {
-		if (gpio_is_valid(pwmbl->gpio_on)) {
-			gpio_set_value(pwmbl->gpio_on,
-					0 ^ pwmbl->pdata->on_active_low);
-		}
+		atmel_pwm_bl_set_gpio_on(pwmbl, 0);
 		pwm_channel_writel(&pwmbl->pwmc, PWM_CUPD, pwm_duty);
 		pwm_channel_disable(&pwmbl->pwmc);
 	} else {
 		pwm_channel_enable(&pwmbl->pwmc);
 		pwm_channel_writel(&pwmbl->pwmc, PWM_CUPD, pwm_duty);
-		if (gpio_is_valid(pwmbl->gpio_on)) {
-			gpio_set_value(pwmbl->gpio_on,
-					1 ^ pwmbl->pdata->on_active_low);
-		}
+		atmel_pwm_bl_set_gpio_on(pwmbl, 1);
 	}
 
 	return 0;
@@ -196,10 +198,7 @@ static int atmel_pwm_bl_remove(struct platform_device *pdev)
 {
 	struct atmel_pwm_bl *pwmbl = platform_get_drvdata(pdev);
 
-	if (gpio_is_valid(pwmbl->gpio_on)) {
-		gpio_set_value(pwmbl->gpio_on,
-					0 ^ pwmbl->pdata->on_active_low);
-	}
+	atmel_pwm_bl_set_gpio_on(pwmbl, 0);
 	pwm_channel_disable(&pwmbl->pwmc);
 	pwm_channel_free(&pwmbl->pwmc);
 
-- 
cgit 


From 9b3521ee8f35faa73459cda9a8b9b6e0a08a8d30 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Tue, 12 Nov 2013 15:09:46 -0800
Subject: backlight: atmel-pwm-bl: use gpio_request_one

Use devm_gpio_request_one rather than requesting and setting direction
in two calls.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/atmel-pwm-bl.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/video/backlight/atmel-pwm-bl.c b/drivers/video/backlight/atmel-pwm-bl.c
index bd1ed342f87a..261b1a4ec3d8 100644
--- a/drivers/video/backlight/atmel-pwm-bl.c
+++ b/drivers/video/backlight/atmel-pwm-bl.c
@@ -124,6 +124,7 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev)
 	const struct atmel_pwm_bl_platform_data *pdata;
 	struct backlight_device *bldev;
 	struct atmel_pwm_bl *pwmbl;
+	unsigned long flags;
 	int retval;
 
 	pdata = dev_get_platdata(&pdev->dev);
@@ -149,14 +150,14 @@ static int atmel_pwm_bl_probe(struct platform_device *pdev)
 		return retval;
 
 	if (gpio_is_valid(pwmbl->gpio_on)) {
-		retval = devm_gpio_request(&pdev->dev, pwmbl->gpio_on,
-					"gpio_atmel_pwm_bl");
-		if (retval)
-			goto err_free_pwm;
-
 		/* Turn display off by default. */
-		retval = gpio_direction_output(pwmbl->gpio_on,
-				0 ^ pdata->on_active_low);
+		if (pdata->on_active_low)
+			flags = GPIOF_OUT_INIT_HIGH;
+		else
+			flags = GPIOF_OUT_INIT_LOW;
+
+		retval = devm_gpio_request_one(&pdev->dev, pwmbl->gpio_on,
+						flags, "gpio_atmel_pwm_bl");
 		if (retval)
 			goto err_free_pwm;
 	}
-- 
cgit 


From c962f7b95c98d2b42019cc9cb074886d177ee3a3 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 12 Nov 2013 15:09:47 -0800
Subject: drivers/video/backlight/hx8357.c: remove redundant of_match_ptr

'hx8357_dt_ids' is always compiled in.  Hence of_match_ptr is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/video/backlight/hx8357.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/video/backlight/hx8357.c b/drivers/video/backlight/hx8357.c
index 0d252e720d13..985e854e244b 100644
--- a/drivers/video/backlight/hx8357.c
+++ b/drivers/video/backlight/hx8357.c
@@ -673,7 +673,7 @@ static struct spi_driver hx8357_driver = {
 	.probe  = hx8357_probe,
 	.driver = {
 		.name = "hx8357",
-		.of_match_table = of_match_ptr(hx8357_dt_ids),
+		.of_match_table = hx8357_dt_ids,
 	},
 };
 
-- 
cgit 


From ec778edf97dcaa517e5b0eea6f1a9ba9d476e4a8 Mon Sep 17 00:00:00 2001
From: Cody P Schafer <cody@linux.vnet.ibm.com>
Date: Tue, 12 Nov 2013 15:09:48 -0800
Subject: bitops/find: clarify and extend documentation

Add return value documentation and clarify the units of the @size
parameter.

Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Cody P Schafer <cody@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/asm-generic/bitops/find.h | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/include/asm-generic/bitops/find.h b/include/asm-generic/bitops/find.h
index 71c778033f57..998d4d544f18 100644
--- a/include/asm-generic/bitops/find.h
+++ b/include/asm-generic/bitops/find.h
@@ -7,6 +7,9 @@
  * @addr: The address to base the search on
  * @offset: The bitnumber to start searching at
  * @size: The bitmap size in bits
+ *
+ * Returns the bit number for the next set bit
+ * If no bits are set, returns @size.
  */
 extern unsigned long find_next_bit(const unsigned long *addr, unsigned long
 		size, unsigned long offset);
@@ -18,6 +21,9 @@ extern unsigned long find_next_bit(const unsigned long *addr, unsigned long
  * @addr: The address to base the search on
  * @offset: The bitnumber to start searching at
  * @size: The bitmap size in bits
+ *
+ * Returns the bit number of the next zero bit
+ * If no bits are zero, returns @size.
  */
 extern unsigned long find_next_zero_bit(const unsigned long *addr, unsigned
 		long size, unsigned long offset);
@@ -28,9 +34,10 @@ extern unsigned long find_next_zero_bit(const unsigned long *addr, unsigned
 /**
  * find_first_bit - find the first set bit in a memory region
  * @addr: The address to start the search at
- * @size: The maximum size to search
+ * @size: The maximum number of bits to search
  *
  * Returns the bit number of the first set bit.
+ * If no bits are set, returns @size.
  */
 extern unsigned long find_first_bit(const unsigned long *addr,
 				    unsigned long size);
@@ -38,9 +45,10 @@ extern unsigned long find_first_bit(const unsigned long *addr,
 /**
  * find_first_zero_bit - find the first cleared bit in a memory region
  * @addr: The address to start the search at
- * @size: The maximum size to search
+ * @size: The maximum number of bits to search
  *
  * Returns the bit number of the first cleared bit.
+ * If no bits are zero, returns @size.
  */
 extern unsigned long find_first_zero_bit(const unsigned long *addr,
 					 unsigned long size);
-- 
cgit 


From d3773ba13c8ca63a4ee9e7926813f6e82be27a6c Mon Sep 17 00:00:00 2001
From: Xie XiuQi <xiexiuqi@huawei.com>
Date: Tue, 12 Nov 2013 15:09:49 -0800
Subject: lib/debugobjects.c: remove unnecessary work pending test

Remove unnecessary work pending test before calling schedule_work().  It
has been tested in queue_work_on() already.  No functional changed.

Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Reviewed-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 lib/debugobjects.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/debugobjects.c b/lib/debugobjects.c
index bf2c8b1043d8..e0731c3db706 100644
--- a/lib/debugobjects.c
+++ b/lib/debugobjects.c
@@ -196,7 +196,7 @@ static void free_object(struct debug_obj *obj)
 	 * initialized:
 	 */
 	if (obj_pool_free > ODEBUG_POOL_SIZE && obj_cache)
-		sched = keventd_up() && !work_pending(&debug_obj_work);
+		sched = keventd_up();
 	hlist_add_head(&obj->node, &obj_pool);
 	obj_pool_free++;
 	obj_pool_used--;
-- 
cgit 


From c0d92a57a88586586b8cb9c7ac149bd10bc40d11 Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Tue, 12 Nov 2013 15:09:50 -0800
Subject: lib/vsprintf.c: document formats for dentry and struct file

Looks like these were added to Documentation/printk-formats.txt but
not the in-file table.

Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 lib/vsprintf.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index d76555c45ff4..48586ac3a62e 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1219,6 +1219,8 @@ int kptr_restrict __read_mostly;
  *            The maximum supported length is 64 bytes of the input. Consider
  *            to use print_hex_dump() for the larger input.
  * - 'a' For a phys_addr_t type and its derivative types (passed by reference)
+ * - 'd[234]' For a dentry name (optionally 2-4 last components)
+ * - 'D[234]' Same as 'd' but for a struct file
  *
  * Note: The difference between 'S' and 'F' is that on ia64 and ppc64
  * function pointers are really function descriptors, which contain a
-- 
cgit 


From ff6092a8a413f3db1938b4606e078fa751ed6cdb Mon Sep 17 00:00:00 2001
From: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Date: Tue, 12 Nov 2013 15:09:51 -0800
Subject: lib/digsig.c: use ERR_CAST inlined function instead of
 ERR_PTR(PTR_ERR(...))

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Cc: James Morris <james.l.morris@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 lib/digsig.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/digsig.c b/lib/digsig.c
index 2f31e6a45f0a..8793aeda30ca 100644
--- a/lib/digsig.c
+++ b/lib/digsig.c
@@ -209,7 +209,7 @@ int digsig_verify(struct key *keyring, const char *sig, int siglen,
 		kref = keyring_search(make_key_ref(keyring, 1UL),
 						&key_type_user, name);
 		if (IS_ERR(kref))
-			key = ERR_PTR(PTR_ERR(kref));
+			key = ERR_CAST(kref);
 		else
 			key = key_ref_to_ptr(kref);
 	} else {
-- 
cgit 


From 684f0d3d14f2744ae7ad79063b21909e32bf444e Mon Sep 17 00:00:00 2001
From: Nicolin Chen <b42378@freescale.com>
Date: Tue, 12 Nov 2013 15:09:52 -0800
Subject: lib/genalloc: add a helper function for DMA buffer allocation

When using pool space for DMA buffer, there might be duplicated calling of
gen_pool_alloc() and gen_pool_virt_to_phys() in each implementation.

Thus it's better to add a simple helper function, a compatible one to the
common dma_alloc_coherent(), to save some code.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Cc: "Hans J. Koch" <hjk@hansjkoch.de>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/genalloc.h |  2 ++
 lib/genalloc.c           | 28 ++++++++++++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/include/linux/genalloc.h b/include/linux/genalloc.h
index f8d41cb1cbe0..1eda33d7cb10 100644
--- a/include/linux/genalloc.h
+++ b/include/linux/genalloc.h
@@ -94,6 +94,8 @@ static inline int gen_pool_add(struct gen_pool *pool, unsigned long addr,
 }
 extern void gen_pool_destroy(struct gen_pool *);
 extern unsigned long gen_pool_alloc(struct gen_pool *, size_t);
+extern void *gen_pool_dma_alloc(struct gen_pool *pool, size_t size,
+		dma_addr_t *dma);
 extern void gen_pool_free(struct gen_pool *, unsigned long, size_t);
 extern void gen_pool_for_each_chunk(struct gen_pool *,
 	void (*)(struct gen_pool *, struct gen_pool_chunk *, void *), void *);
diff --git a/lib/genalloc.c b/lib/genalloc.c
index 26cf20be72b7..dda31168844f 100644
--- a/lib/genalloc.c
+++ b/lib/genalloc.c
@@ -312,6 +312,34 @@ retry:
 }
 EXPORT_SYMBOL(gen_pool_alloc);
 
+/**
+ * gen_pool_dma_alloc - allocate special memory from the pool for DMA usage
+ * @pool: pool to allocate from
+ * @size: number of bytes to allocate from the pool
+ * @dma: dma-view physical address
+ *
+ * Allocate the requested number of bytes from the specified pool.
+ * Uses the pool allocation function (with first-fit algorithm by default).
+ * Can not be used in NMI handler on architectures without
+ * NMI-safe cmpxchg implementation.
+ */
+void *gen_pool_dma_alloc(struct gen_pool *pool, size_t size, dma_addr_t *dma)
+{
+	unsigned long vaddr;
+
+	if (!pool)
+		return NULL;
+
+	vaddr = gen_pool_alloc(pool, size);
+	if (!vaddr)
+		return NULL;
+
+	*dma = gen_pool_virt_to_phys(pool, vaddr);
+
+	return (void *)vaddr;
+}
+EXPORT_SYMBOL(gen_pool_dma_alloc);
+
 /**
  * gen_pool_free - free allocated special memory back to the pool
  * @pool: pool to free to
-- 
cgit 


From 66f119695bcccc2b03b354152f6d65a0b129cef9 Mon Sep 17 00:00:00 2001
From: Nicolin Chen <b42378@freescale.com>
Date: Tue, 12 Nov 2013 15:09:54 -0800
Subject: arch/arm/mach-davinci/sram.c: use gen_pool_dma_alloc() to sram.c

Since gen_pool_dma_alloc() is introduced, we implement it to simplify code.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/arm/mach-davinci/sram.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/arch/arm/mach-davinci/sram.c b/arch/arm/mach-davinci/sram.c
index f18928b073f5..8540dddf1fbd 100644
--- a/arch/arm/mach-davinci/sram.c
+++ b/arch/arm/mach-davinci/sram.c
@@ -25,7 +25,6 @@ struct gen_pool *sram_get_gen_pool(void)
 
 void *sram_alloc(size_t len, dma_addr_t *dma)
 {
-	unsigned long vaddr;
 	dma_addr_t dma_base = davinci_soc_info.sram_dma;
 
 	if (dma)
@@ -33,13 +32,7 @@ void *sram_alloc(size_t len, dma_addr_t *dma)
 	if (!sram_pool || (dma && !dma_base))
 		return NULL;
 
-	vaddr = gen_pool_alloc(sram_pool, len);
-	if (!vaddr)
-		return NULL;
-
-	if (dma)
-		*dma = gen_pool_virt_to_phys(sram_pool, vaddr);
-	return (void *)vaddr;
+	return gen_pool_dma_alloc(sram_pool, len, dma);
 
 }
 EXPORT_SYMBOL(sram_alloc);
-- 
cgit 


From a6dd30e2bc88b3816341534c3cd0ebbecdda3ec6 Mon Sep 17 00:00:00 2001
From: Nicolin Chen <b42378@freescale.com>
Date: Tue, 12 Nov 2013 15:09:55 -0800
Subject: drivers/dma/mmp_tdma.c: use gen_pool_dma_alloc() to allocate
 descriptor

Since gen_pool_dma_alloc() is introduced, we implement it to simplify code.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/dma/mmp_tdma.c | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index 38cb517fb2eb..d3b6358e5a27 100644
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -350,12 +350,7 @@ struct mmp_tdma_desc *mmp_tdma_alloc_descriptor(struct mmp_tdma_chan *tdmac)
 	if (!gpool)
 		return NULL;
 
-	tdmac->desc_arr = (void *)gen_pool_alloc(gpool, size);
-	if (!tdmac->desc_arr)
-		return NULL;
-
-	tdmac->desc_arr_phys = gen_pool_virt_to_phys(gpool,
-			(unsigned long)tdmac->desc_arr);
+	tdmac->desc_arr = gen_pool_dma_alloc(gpool, size, &tdmac->desc_arr_phys);
 
 	return tdmac->desc_arr;
 }
-- 
cgit 


From 43f950f454815cca2c39244c7441f9288d7389e0 Mon Sep 17 00:00:00 2001
From: Nicolin Chen <b42378@freescale.com>
Date: Tue, 12 Nov 2013 15:09:56 -0800
Subject: drivers/media/platform/coda.c: use gen_pool_dma_alloc() to allocate
 iram buffer

Since gen_pool_dma_alloc() is introduced, we implement it to simplify code.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Acked-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/media/platform/coda.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/media/platform/coda.c b/drivers/media/platform/coda.c
index 449d2fec9e87..4993610051ee 100644
--- a/drivers/media/platform/coda.c
+++ b/drivers/media/platform/coda.c
@@ -3232,13 +3232,12 @@ static int coda_probe(struct platform_device *pdev)
 		dev->iram_size = CODA7_IRAM_SIZE;
 		break;
 	}
-	dev->iram_vaddr = gen_pool_alloc(dev->iram_pool, dev->iram_size);
+	dev->iram_vaddr = (unsigned long)gen_pool_dma_alloc(dev->iram_pool,
+			dev->iram_size, (dma_addr_t *)&dev->iram_paddr);
 	if (!dev->iram_vaddr) {
 		dev_err(&pdev->dev, "unable to alloc iram\n");
 		return -ENOMEM;
 	}
-	dev->iram_paddr = gen_pool_virt_to_phys(dev->iram_pool,
-						dev->iram_vaddr);
 
 	platform_set_drvdata(pdev, dev);
 
-- 
cgit 


From 288342e9cc867421d20f940d0c06b7aa4bf39096 Mon Sep 17 00:00:00 2001
From: Nicolin Chen <b42378@freescale.com>
Date: Tue, 12 Nov 2013 15:09:57 -0800
Subject: drivers/uio/uio_pruss.c: use gen_pool_dma_alloc() to allocate sram
 memory

Since gen_pool_dma_alloc() is introduced, we implement it to simplify code.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Cc: "Hans J. Koch" <hjk@hansjkoch.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/uio/uio_pruss.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/uio/uio_pruss.c b/drivers/uio/uio_pruss.c
index f519da9034b7..96c4a19b1918 100644
--- a/drivers/uio/uio_pruss.c
+++ b/drivers/uio/uio_pruss.c
@@ -158,14 +158,12 @@ static int pruss_probe(struct platform_device *dev)
 	if (pdata->sram_pool) {
 		gdev->sram_pool = pdata->sram_pool;
 		gdev->sram_vaddr =
-			gen_pool_alloc(gdev->sram_pool, sram_pool_sz);
+			(unsigned long)gen_pool_dma_alloc(gdev->sram_pool,
+					sram_pool_sz, &gdev->sram_paddr);
 		if (!gdev->sram_vaddr) {
 			dev_err(&dev->dev, "Could not allocate SRAM pool\n");
 			goto out_free;
 		}
-		gdev->sram_paddr =
-			gen_pool_virt_to_phys(gdev->sram_pool,
-					      gdev->sram_vaddr);
 	}
 
 	gdev->ddr_vaddr = dma_alloc_coherent(&dev->dev, extram_pool_sz,
-- 
cgit 


From 1112b9e2c9c8ae10551a7d34667a6189f971cdba Mon Sep 17 00:00:00 2001
From: Nicolin Chen <b42378@freescale.com>
Date: Tue, 12 Nov 2013 15:09:58 -0800
Subject: sound/soc/davinci/davinci-pcm.c: use gen_pool_dma_alloc() in
 davinci-pcm.c

Since gen_pool_dma_alloc() is introduced, we implement it to simplify code.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 sound/soc/davinci/davinci-pcm.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/soc/davinci/davinci-pcm.c b/sound/soc/davinci/davinci-pcm.c
index 8460edce1c3b..443e9e599a75 100644
--- a/sound/soc/davinci/davinci-pcm.c
+++ b/sound/soc/davinci/davinci-pcm.c
@@ -267,10 +267,9 @@ static int allocate_sram(struct snd_pcm_substream *substream,
 		return 0;
 
 	ppcm->period_bytes_max = size;
-	iram_virt = (void *)gen_pool_alloc(sram_pool, size);
+	iram_virt = gen_pool_dma_alloc(sram_pool, size, &iram_phys);
 	if (!iram_virt)
 		goto exit1;
-	iram_phys = gen_pool_virt_to_phys(sram_pool, (unsigned)iram_virt);
 	iram_dma = kzalloc(sizeof(*iram_dma), GFP_KERNEL);
 	if (!iram_dma)
 		goto exit2;
-- 
cgit 


From 92a2e1cb53ba649e620b7f02a15ad1fb949c6355 Mon Sep 17 00:00:00 2001
From: Nicolin Chen <b42378@freescale.com>
Date: Tue, 12 Nov 2013 15:10:00 -0800
Subject: sound/soc/pxa/mmp-pcm.c: use gen_pool_dma_alloc() to allocate dma
 buffer

Since gen_pool_dma_alloc() is introduced, we implement it to simplify code.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Liam Girdwood <lgirdwood@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 sound/soc/pxa/mmp-pcm.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/soc/pxa/mmp-pcm.c b/sound/soc/pxa/mmp-pcm.c
index 8235e231d89c..7929e19b0ef5 100644
--- a/sound/soc/pxa/mmp-pcm.c
+++ b/sound/soc/pxa/mmp-pcm.c
@@ -201,10 +201,9 @@ static int mmp_pcm_preallocate_dma_buffer(struct snd_pcm_substream *substream,
 	if (!gpool)
 		return -ENOMEM;
 
-	buf->area = (unsigned char *)gen_pool_alloc(gpool, size);
+	buf->area = gen_pool_dma_alloc(gpool, size, &buf->addr);
 	if (!buf->area)
 		return -ENOMEM;
-	buf->addr = gen_pool_virt_to_phys(gpool, (unsigned long)buf->area);
 	buf->bytes = size;
 	return 0;
 }
-- 
cgit 


From 008208c6b26f21c2648c250a09c55e737c02c5f8 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Tue, 12 Nov 2013 15:10:01 -0800
Subject: list: introduce list_next_entry() and list_prev_entry()

Add two trivial helpers list_next_entry() and list_prev_entry(), they
can have a lot of users including list.h itself.  In fact the 1st one is
already defined in events/core.c and bnx2x_sp.c, so the patch simply
moves the definition to list.h.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Eilon Greenstein <eilong@broadcom.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c |  3 ---
 include/linux/list.h                           | 16 ++++++++++++++++
 kernel/events/core.c                           |  3 ---
 3 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
index 9fbeee522d2c..32c92abf5094 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_sp.c
@@ -1217,9 +1217,6 @@ static void bnx2x_set_one_vlan_mac_e1h(struct bnx2x *bp,
 				     ETH_VLAN_FILTER_CLASSIFY, config);
 }
 
-#define list_next_entry(pos, member) \
-	list_entry((pos)->member.next, typeof(*(pos)), member)
-
 /**
  * bnx2x_vlan_mac_restore - reconfigure next MAC/VLAN/VLAN-MAC element
  *
diff --git a/include/linux/list.h b/include/linux/list.h
index f4d8a2f12a33..2ece63847001 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -372,6 +372,22 @@ static inline void list_splice_tail_init(struct list_head *list,
 #define list_first_entry_or_null(ptr, type, member) \
 	(!list_empty(ptr) ? list_first_entry(ptr, type, member) : NULL)
 
+/**
+ * list_next_entry - get the next element in list
+ * @pos:	the type * to cursor
+ * @member:	the name of the list_struct within the struct.
+ */
+#define list_next_entry(pos, member) \
+	list_entry((pos)->member.next, typeof(*(pos)), member)
+
+/**
+ * list_prev_entry - get the prev element in list
+ * @pos:	the type * to cursor
+ * @member:	the name of the list_struct within the struct.
+ */
+#define list_prev_entry(pos, member) \
+	list_entry((pos)->member.prev, typeof(*(pos)), member)
+
 /**
  * list_for_each	-	iterate over a list
  * @pos:	the &struct list_head to use as a loop cursor.
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 8c875ef6e120..d724e7757cd1 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -2234,9 +2234,6 @@ static void __perf_event_sync_stat(struct perf_event *event,
 	perf_event_update_userpage(next_event);
 }
 
-#define list_next_entry(pos, member) \
-	list_entry(pos->member.next, typeof(*pos), member)
-
 static void perf_event_sync_stat(struct perf_event_context *ctx,
 				   struct perf_event_context *next_ctx)
 {
-- 
cgit 


From 8120e2e5141a420edee725ff28f18aa264795f7a Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Tue, 12 Nov 2013 15:10:02 -0800
Subject: list: change list_for_each_entry*() to use list_*_entry()

Now that we have list_{next,prev}_entry() we can change
list_for_each_entry*() and list_safe_reset_next() to use the new helpers
to improve the readability.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Eilon Greenstein <eilong@broadcom.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/list.h | 44 ++++++++++++++++++++++----------------------
 1 file changed, 22 insertions(+), 22 deletions(-)

diff --git a/include/linux/list.h b/include/linux/list.h
index 2ece63847001..c88a591d1c02 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -433,8 +433,8 @@ static inline void list_splice_tail_init(struct list_head *list,
  */
 #define list_for_each_entry(pos, head, member)				\
 	for (pos = list_entry((head)->next, typeof(*pos), member);	\
-	     &pos->member != (head); 	\
-	     pos = list_entry(pos->member.next, typeof(*pos), member))
+	     &pos->member != (head);					\
+	     pos = list_next_entry(pos, member))
 
 /**
  * list_for_each_entry_reverse - iterate backwards over list of given type.
@@ -444,8 +444,8 @@ static inline void list_splice_tail_init(struct list_head *list,
  */
 #define list_for_each_entry_reverse(pos, head, member)			\
 	for (pos = list_entry((head)->prev, typeof(*pos), member);	\
-	     &pos->member != (head); 	\
-	     pos = list_entry(pos->member.prev, typeof(*pos), member))
+	     &pos->member != (head); 					\
+	     pos = list_prev_entry(pos, member))
 
 /**
  * list_prepare_entry - prepare a pos entry for use in list_for_each_entry_continue()
@@ -468,9 +468,9 @@ static inline void list_splice_tail_init(struct list_head *list,
  * the current position.
  */
 #define list_for_each_entry_continue(pos, head, member) 		\
-	for (pos = list_entry(pos->member.next, typeof(*pos), member);	\
-	     &pos->member != (head);	\
-	     pos = list_entry(pos->member.next, typeof(*pos), member))
+	for (pos = list_next_entry(pos, member);			\
+	     &pos->member != (head);					\
+	     pos = list_next_entry(pos, member))
 
 /**
  * list_for_each_entry_continue_reverse - iterate backwards from the given point
@@ -482,9 +482,9 @@ static inline void list_splice_tail_init(struct list_head *list,
  * the current position.
  */
 #define list_for_each_entry_continue_reverse(pos, head, member)		\
-	for (pos = list_entry(pos->member.prev, typeof(*pos), member);	\
-	     &pos->member != (head);	\
-	     pos = list_entry(pos->member.prev, typeof(*pos), member))
+	for (pos = list_prev_entry(pos, member);			\
+	     &pos->member != (head);					\
+	     pos = list_prev_entry(pos, member))
 
 /**
  * list_for_each_entry_from - iterate over list of given type from the current point
@@ -495,8 +495,8 @@ static inline void list_splice_tail_init(struct list_head *list,
  * Iterate over list of given type, continuing from current position.
  */
 #define list_for_each_entry_from(pos, head, member) 			\
-	for (; &pos->member != (head);	\
-	     pos = list_entry(pos->member.next, typeof(*pos), member))
+	for (; &pos->member != (head);					\
+	     pos = list_next_entry(pos, member))
 
 /**
  * list_for_each_entry_safe - iterate over list of given type safe against removal of list entry
@@ -507,9 +507,9 @@ static inline void list_splice_tail_init(struct list_head *list,
  */
 #define list_for_each_entry_safe(pos, n, head, member)			\
 	for (pos = list_entry((head)->next, typeof(*pos), member),	\
-		n = list_entry(pos->member.next, typeof(*pos), member);	\
+		n = list_next_entry(pos, member);			\
 	     &pos->member != (head); 					\
-	     pos = n, n = list_entry(n->member.next, typeof(*n), member))
+	     pos = n, n = list_next_entry(n, member))
 
 /**
  * list_for_each_entry_safe_continue - continue list iteration safe against removal
@@ -522,10 +522,10 @@ static inline void list_splice_tail_init(struct list_head *list,
  * safe against removal of list entry.
  */
 #define list_for_each_entry_safe_continue(pos, n, head, member) 		\
-	for (pos = list_entry(pos->member.next, typeof(*pos), member), 		\
-		n = list_entry(pos->member.next, typeof(*pos), member);		\
+	for (pos = list_next_entry(pos, member), 				\
+		n = list_next_entry(pos, member);				\
 	     &pos->member != (head);						\
-	     pos = n, n = list_entry(n->member.next, typeof(*n), member))
+	     pos = n, n = list_next_entry(n, member))
 
 /**
  * list_for_each_entry_safe_from - iterate over list from current point safe against removal
@@ -538,9 +538,9 @@ static inline void list_splice_tail_init(struct list_head *list,
  * removal of list entry.
  */
 #define list_for_each_entry_safe_from(pos, n, head, member) 			\
-	for (n = list_entry(pos->member.next, typeof(*pos), member);		\
+	for (n = list_next_entry(pos, member);					\
 	     &pos->member != (head);						\
-	     pos = n, n = list_entry(n->member.next, typeof(*n), member))
+	     pos = n, n = list_next_entry(n, member))
 
 /**
  * list_for_each_entry_safe_reverse - iterate backwards over list safe against removal
@@ -554,9 +554,9 @@ static inline void list_splice_tail_init(struct list_head *list,
  */
 #define list_for_each_entry_safe_reverse(pos, n, head, member)		\
 	for (pos = list_entry((head)->prev, typeof(*pos), member),	\
-		n = list_entry(pos->member.prev, typeof(*pos), member);	\
+		n = list_prev_entry(pos, member);			\
 	     &pos->member != (head); 					\
-	     pos = n, n = list_entry(n->member.prev, typeof(*n), member))
+	     pos = n, n = list_prev_entry(n, member))
 
 /**
  * list_safe_reset_next - reset a stale list_for_each_entry_safe loop
@@ -571,7 +571,7 @@ static inline void list_splice_tail_init(struct list_head *list,
  * completing the current iteration of the loop body.
  */
 #define list_safe_reset_next(pos, n, member)				\
-	n = list_entry(pos->member.next, typeof(*pos), member)
+	n = list_next_entry(pos, member)
 
 /*
  * Double linked lists with a single pointer list head.
-- 
cgit 


From 93be3c2eb3371f022ad88acf1ab6bee8e3c38378 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Tue, 12 Nov 2013 15:10:03 -0800
Subject: list: introduce list_last_entry(), use list_{first,last}_entry()

We already have list_first_entry(), it makes sense to also add
list_last_entry() for consistency.  And we use both helpers in
list_for_each_*().

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Eilon Greenstein <eilong@broadcom.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/list.h | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/include/linux/list.h b/include/linux/list.h
index c88a591d1c02..ef9594171062 100644
--- a/include/linux/list.h
+++ b/include/linux/list.h
@@ -361,6 +361,17 @@ static inline void list_splice_tail_init(struct list_head *list,
 #define list_first_entry(ptr, type, member) \
 	list_entry((ptr)->next, type, member)
 
+/**
+ * list_last_entry - get the last element from a list
+ * @ptr:	the list head to take the element from.
+ * @type:	the type of the struct this is embedded in.
+ * @member:	the name of the list_struct within the struct.
+ *
+ * Note, that list is expected to be not empty.
+ */
+#define list_last_entry(ptr, type, member) \
+	list_entry((ptr)->prev, type, member)
+
 /**
  * list_first_entry_or_null - get the first element from a list
  * @ptr:	the list head to take the element from.
@@ -432,7 +443,7 @@ static inline void list_splice_tail_init(struct list_head *list,
  * @member:	the name of the list_struct within the struct.
  */
 #define list_for_each_entry(pos, head, member)				\
-	for (pos = list_entry((head)->next, typeof(*pos), member);	\
+	for (pos = list_first_entry(head, typeof(*pos), member);	\
 	     &pos->member != (head);					\
 	     pos = list_next_entry(pos, member))
 
@@ -443,7 +454,7 @@ static inline void list_splice_tail_init(struct list_head *list,
  * @member:	the name of the list_struct within the struct.
  */
 #define list_for_each_entry_reverse(pos, head, member)			\
-	for (pos = list_entry((head)->prev, typeof(*pos), member);	\
+	for (pos = list_last_entry(head, typeof(*pos), member);		\
 	     &pos->member != (head); 					\
 	     pos = list_prev_entry(pos, member))
 
@@ -506,7 +517,7 @@ static inline void list_splice_tail_init(struct list_head *list,
  * @member:	the name of the list_struct within the struct.
  */
 #define list_for_each_entry_safe(pos, n, head, member)			\
-	for (pos = list_entry((head)->next, typeof(*pos), member),	\
+	for (pos = list_first_entry(head, typeof(*pos), member),	\
 		n = list_next_entry(pos, member);			\
 	     &pos->member != (head); 					\
 	     pos = n, n = list_next_entry(n, member))
@@ -553,7 +564,7 @@ static inline void list_splice_tail_init(struct list_head *list,
  * of list entry.
  */
 #define list_for_each_entry_safe_reverse(pos, n, head, member)		\
-	for (pos = list_entry((head)->prev, typeof(*pos), member),	\
+	for (pos = list_last_entry(head, typeof(*pos), member),		\
 		n = list_prev_entry(pos, member);			\
 	     &pos->member != (head); 					\
 	     pos = n, n = list_prev_entry(n, member))
-- 
cgit 


From 6bc080d8fdae33f4463203a400cfaa01e91701e2 Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Tue, 12 Nov 2013 15:10:04 -0800
Subject: debugfs: use list_next_entry() in debugfs_remove_recursive()

Change debugfs_remove_recursive() to use list_next_entry(child), no
changes in generated code.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Eilon Greenstein <eilong@broadcom.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/debugfs/inode.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
index c7c83ff0f752..9c0444cccbe1 100644
--- a/fs/debugfs/inode.c
+++ b/fs/debugfs/inode.c
@@ -566,8 +566,7 @@ void debugfs_remove_recursive(struct dentry *dentry)
 	mutex_lock(&parent->d_inode->i_mutex);
 
 	if (child != dentry) {
-		next = list_entry(child->d_u.d_child.next, struct dentry,
-					d_u.d_child);
+		next = list_next_entry(child, d_u.d_child);
 		goto up;
 	}
 
-- 
cgit 


From 847316231c2f89918a2872e3d5fa3f5de11c39b6 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 12 Nov 2013 15:10:05 -0800
Subject: checkpatch: report missing spaces around trigraphs with --strict

Spaces around trigraphs are specified by CodingStyle but checkpatch is
currently silent about them because there are many current instances
without them.

Make missing spaces around trigraphs a --strict message.

Signed-off-by: Joe Perches <joe@perches.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 66cad506b8a2..42103a0cdbc0 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2838,7 +2838,7 @@ sub process {
 				\+=|-=|\*=|\/=|%=|\^=|\|=|&=|
 				=>|->|<<|>>|<|>|=|!|~|
 				&&|\|\||,|\^|\+\+|--|&|\||\+|-|\*|\/|%|
-				\?|:
+				\?:|\?|:
 			}x;
 			my @elements = split(/($ops|;)/, $opline);
 
@@ -3061,15 +3061,13 @@ sub process {
 					    	$ok = 1;
 					}
 
-					# Ignore ?:
-					if (($opv eq ':O' && $ca =~ /\?$/) ||
-					    ($op eq '?' && $cc =~ /^:/)) {
-					    	$ok = 1;
-					}
-
+					# messages are ERROR, but ?: are CHK
 					if ($ok == 0) {
-						if (ERROR("SPACING",
-							  "spaces required around that '$op' $at\n" . $hereptr)) {
+						my $msg_type = \&ERROR;
+						$msg_type = \&CHK if (($op eq '?:' || $op eq '?' || $op eq ':') && $ctx =~ /VxV/);
+
+						if (&{$msg_type}("SPACING",
+								 "spaces required around that '$op' $at\n" . $hereptr)) {
 							$good = rtrim($fix_elements[$n]) . " " . trim($fix_elements[$n + 1]) . " ";
 							if (defined $fix_elements[$n + 2]) {
 								$fix_elements[$n + 2] =~ s/^\s+//;
-- 
cgit 


From d8b077101bcfbd36701c18bfda04fd74648d5d35 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 12 Nov 2013 15:10:06 -0800
Subject: checkpatch: extend CamelCase types and ignore existing CamelCase uses
 in a patch

Extend the CamelCase words found to include structure members.

In https://lkml.org/lkml/2013/9/3/318 Sarah Sharp (mostly) wrote:

"In general, if checkpatch.pl complains about a variable a patch
introduces that's CamelCase, you should pay attention to it.  Otherwise,
[] ignore it."

So, if checking a patch, scan the original patched file if it's available
and add any preexisting CamelCase types so reuses do not generate
CamelCase messages.

That also means Andrew's not so cruelly spurned anymore.
https://lkml.org/lkml/2013/2/22/426

Signed-off-by: Joe Perches <joe@perches.com>
Suggested-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 42103a0cdbc0..c03e4278b07c 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -443,7 +443,7 @@ sub seed_camelcase_file {
 		if ($line =~ /^[ \t]*(?:#[ \t]*define|typedef\s+$Type)\s+(\w*(?:[A-Z][a-z]|[a-z][A-Z])\w*)/) {
 			$camelcase{$1} = 1;
 		}
-	        elsif ($line =~ /^\s*$Declare\s+(\w*(?:[A-Z][a-z]|[a-z][A-Z])\w*)\s*\(/) {
+	        elsif ($line =~ /^\s*$Declare\s+(\w*(?:[A-Z][a-z]|[a-z][A-Z])\w*)\s*[\(\[,;]/) {
 			$camelcase{$1} = 1;
 		}
 	}
@@ -1612,6 +1612,8 @@ sub process {
 	my @setup_docs = ();
 	my $setup_docs = 0;
 
+	my $camelcase_file_seeded = 0;
+
 	sanitise_line_reset();
 	my $line;
 	foreach my $rawline (@rawlines) {
@@ -3394,7 +3396,13 @@ sub process {
 				while ($var =~ m{($Ident)}g) {
 					my $word = $1;
 					next if ($word !~ /[A-Z][a-z]|[a-z][A-Z]/);
-					seed_camelcase_includes() if ($check);
+					if ($check) {
+						seed_camelcase_includes();
+						if (!$file && !$camelcase_file_seeded) {
+							seed_camelcase_file($realfile);
+							$camelcase_file_seeded = 1;
+						}
+					}
 					if (!defined $camelcase{$word}) {
 						$camelcase{$word} = 1;
 						CHK("CAMELCASE",
-- 
cgit 


From 066687279ccf5e9e935f7780c4b311d18ebaf977 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 12 Nov 2013 15:10:07 -0800
Subject: checkpatch: update seq_<foo> tests

seq_vprintf, seq_printf and seq_puts are logging functions and should be
allowed to exceed the maximium line length.

Add maximum line length exceptions for these functions.

Also, suggesting seq_printf conversions to seq_puts should be tested for
arguments after the format.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index c03e4278b07c..42567bcd66b2 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -323,7 +323,8 @@ our $logFunctions = qr{(?x:
 	(?:[a-z0-9]+_){1,2}(?:printk|emerg|alert|crit|err|warning|warn|notice|info|debug|dbg|vdbg|devel|cont|WARN)(?:_ratelimited|_once|)|
 	WARN(?:_RATELIMIT|_ONCE|)|
 	panic|
-	MODULE_[A-Z_]+
+	MODULE_[A-Z_]+|
+	seq_vprintf|seq_printf|seq_puts
 )};
 
 our $signature_tags = qr{(?xi:
@@ -3909,9 +3910,9 @@ sub string_find_replace {
 		}
 
 # check for seq_printf uses that could be seq_puts
-		if ($line =~ /\bseq_printf\s*\(/) {
+		if ($sline =~ /\bseq_printf\s*\(.*"\s*\)\s*;\s*$/) {
 			my $fmt = get_quoted_string($line, $rawline);
-			if ($fmt !~ /[^\\]\%/) {
+			if ($fmt ne "" && $fmt !~ /[^\\]\%/) {
 				if (WARN("PREFER_SEQ_PUTS",
 					 "Prefer seq_puts to seq_printf\n" . $herecurr) &&
 				    $fix) {
-- 
cgit 


From 11ea516a6c578564a65a352abb08ef558d365946 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 12 Nov 2013 15:10:08 -0800
Subject: checkpatch: find CamelCase definitions of struct/union/enum

Checkpatch doesn't currently find CamelCase definitions of structs, unions
or enums.

Add that ability.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 42567bcd66b2..fcc74fe7b4d9 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -443,8 +443,9 @@ sub seed_camelcase_file {
 		next if ($line !~ /(?:[A-Z][a-z]|[a-z][A-Z])/);
 		if ($line =~ /^[ \t]*(?:#[ \t]*define|typedef\s+$Type)\s+(\w*(?:[A-Z][a-z]|[a-z][A-Z])\w*)/) {
 			$camelcase{$1} = 1;
-		}
-	        elsif ($line =~ /^\s*$Declare\s+(\w*(?:[A-Z][a-z]|[a-z][A-Z])\w*)\s*[\(\[,;]/) {
+		} elsif ($line =~ /^\s*$Declare\s+(\w*(?:[A-Z][a-z]|[a-z][A-Z])\w*)\s*[\(\[,;]/) {
+			$camelcase{$1} = 1;
+		} elsif ($line =~ /^\s*(?:union|struct|enum)\s+(\w*(?:[A-Z][a-z]|[a-z][A-Z])\w*)\s*[;\{]/) {
 			$camelcase{$1} = 1;
 		}
 	}
-- 
cgit 


From 52ea85061d188031c827ecef9bce47ae93f1e52e Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 12 Nov 2013 15:10:09 -0800
Subject: checkpatch: add test for #defines of ARCH_HAS_<foo>

Add a test for these #defines

Additionally, moved string_find_replace sub as it screws up subsequent
formatting when placed inside another sub.

Signed-off-by: Joe Perches <joe@perches.com>
Suggested-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 22 ++++++++++++++--------
 1 file changed, 14 insertions(+), 8 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index fcc74fe7b4d9..8489c35799e8 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1514,6 +1514,14 @@ sub rtrim {
 	return $string;
 }
 
+sub string_find_replace {
+	my ($string, $find, $replace) = @_;
+
+	$string =~ s/$find/$replace/g;
+
+	return $string;
+}
+
 sub tabify {
 	my ($leading) = @_;
 
@@ -3733,14 +3741,6 @@ sub process {
 			}
 		}
 
-sub string_find_replace {
-	my ($string, $find, $replace) = @_;
-
-	$string =~ s/$find/$replace/g;
-
-	return $string;
-}
-
 # check for bad placement of section $InitAttribute (e.g.: __initdata)
 		if ($line =~ /(\b$InitAttribute\b)/) {
 			my $attr = $1;
@@ -4198,6 +4198,12 @@ sub string_find_replace {
 			     "usage of NR_CPUS is often wrong - consider using cpu_possible(), num_possible_cpus(), for_each_possible_cpu(), etc\n" . $herecurr);
 		}
 
+# Use of __ARCH_HAS_<FOO> or ARCH_HAVE_<BAR> is wrong.
+		if ($line =~ /\+\s*#\s*define\s+((?:__)?ARCH_(?:HAS|HAVE)\w*)\b/) {
+			ERROR("DEFINE_ARCH_HAS",
+			      "#define of '$1' is wrong - use Kconfig variables or standard guards instead\n" . $herecurr);
+		}
+
 # check for %L{u,d,i} in strings
 		my $string;
 		while ($line =~ /(?:^|")([X\t]*)(?:"|$)/g) {
-- 
cgit 


From e970b8846ae4763e64be3c93dc06b4eaebf9ad63 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 12 Nov 2013 15:10:10 -0800
Subject: checkpatch: add rules to check init attribute and const defects

People get this regularly wrong and it breaks the LTO builds, as it causes
a section attribute conflict.

Add --fix capability too.

Based on a patch from Andi Kleen.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 36 ++++++++++++++++++++++++++++++++++--
 1 file changed, 34 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 8489c35799e8..23d55bfcb5af 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -241,8 +241,11 @@ our $Sparse	= qr{
 			__ref|
 			__rcu
 		}x;
-
-our $InitAttribute = qr{__(?:mem|cpu|dev|net_|)(?:initdata|initconst|init\b)};
+our $InitAttributePrefix = qr{__(?:mem|cpu|dev|net_|)};
+our $InitAttributeData = qr{$InitAttributePrefix(?:initdata\b)};
+our $InitAttributeConst = qr{$InitAttributePrefix(?:initconst\b)};
+our $InitAttributeInit = qr{$InitAttributePrefix(?:init\b)};
+our $InitAttribute = qr{$InitAttributeData|$InitAttributeConst|$InitAttributeInit};
 
 # Notes to $Attribute:
 # We need \b after 'init' otherwise 'initconst' will cause a false positive in a check
@@ -3759,6 +3762,35 @@ sub process {
 			}
 		}
 
+# check for $InitAttributeData (ie: __initdata) with const
+		if ($line =~ /\bconst\b/ && $line =~ /($InitAttributeData)/) {
+			my $attr = $1;
+			$attr =~ /($InitAttributePrefix)(.*)/;
+			my $attr_prefix = $1;
+			my $attr_type = $2;
+			if (ERROR("INIT_ATTRIBUTE",
+				  "Use of const init definition must use ${attr_prefix}initconst\n" . $herecurr) &&
+			    $fix) {
+				$fixed[$linenr - 1] =~
+				    s/$InitAttributeData/${attr_prefix}initconst/;
+			}
+		}
+
+# check for $InitAttributeConst (ie: __initconst) without const
+		if ($line !~ /\bconst\b/ && $line =~ /($InitAttributeConst)/) {
+			my $attr = $1;
+			if (ERROR("INIT_ATTRIBUTE",
+				  "Use of $attr requires a separate use of const\n" . $herecurr) &&
+			    $fix) {
+				my $lead = $fixed[$linenr - 1] =~
+				    /(^\+\s*(?:static\s+))/;
+				$lead = rtrim($1);
+				$lead = "$lead " if ($lead !~ /^\+$/);
+				$lead = "${lead}const ";
+				$fixed[$linenr - 1] =~ s/(^\+\s*(?:static\s+))/$lead/;
+			}
+		}
+
 # prefer usleep_range over udelay
 		if ($line =~ /\budelay\s*\(\s*(\d+)\s*\)/) {
 			# ignore udelay's < 10, however
-- 
cgit 


From c1fd7bb99637e69994d26df5f6e33192319d3866 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 12 Nov 2013 15:10:11 -0800
Subject: checkpatch: make the memory barrier test noisier

Peter Zijlstra prefers that comments be required near uses of memory
barriers.

Change the message level for memory barrier uses from a --strict test only
to a normal WARN so it's always emitted.

This might produce false positives around insertions of memory barriers
when a comment is outside the patch context block.

And checkpatch is still stupid, it only looks for existence of any
comment, not at the comment content.

Signed-off-by: Joe Perches <joe@perches.com>
Suggested-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Oliver Neukum <oliver@neukum.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 23d55bfcb5af..2e40f64ed77f 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3850,8 +3850,8 @@ sub process {
 # check for memory barriers without a comment.
 		if ($line =~ /\b(mb|rmb|wmb|read_barrier_depends|smp_mb|smp_rmb|smp_wmb|smp_read_barrier_depends)\(/) {
 			if (!ctx_has_comment($first_line, $linenr)) {
-				CHK("MEMORY_BARRIER",
-				    "memory barrier without comment\n" . $herecurr);
+				WARN("MEMORY_BARRIER",
+				     "memory barrier without comment\n" . $herecurr);
 			}
 		}
 # check of hardware specific defines
-- 
cgit 


From 4783f894d0f3bfb107cf3b1d9aed1f1a0672ee1d Mon Sep 17 00:00:00 2001
From: Josh Triplett <josh@joshtriplett.org>
Date: Tue, 12 Nov 2013 15:10:12 -0800
Subject: checkpatch.pl: check for the FSF mailing address

Kernel maintainers reject new instances of the GPL boilerplate paragraph
directing people to write to the FSF for a copy of the GPL, since the FSF
has moved in the past and may do so again.

Make this an error for new code, but just a --strict CHK in --file mode;
anyone interested in doing tree-wide cleanups of this form can enable this
test explicitly.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 2e40f64ed77f..ec9bbf863d50 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1962,6 +1962,18 @@ sub process {
 			$rpt_cleaners = 1;
 		}
 
+# Check for FSF mailing addresses.
+		if ($rawline =~ /You should have received a copy/ ||
+		    $rawline =~ /write to the Free Software/ ||
+		    $rawline =~ /59 Temple Place/ ||
+		    $rawline =~ /51 Franklin Street/) {
+			my $herevet = "$here\n" . cat_vet($rawline) . "\n";
+			my $msg_type = \&ERROR;
+			$msg_type = \&CHK if ($file);
+			&{$msg_type}("FSF_MAILING_ADDRESS",
+				"Do not include the paragraph about writing to the Free Software Foundation's mailing address from the sample GPL notice. The FSF has changed addresses in the past, and may do so again. Linux already includes a copy of the GPL.\n" . $herevet)
+		}
+
 # check for Kconfig help text having a real description
 # Only applies when adding the entry originally, after that we do not have
 # sufficient context to determine whether it is indeed long enough.
-- 
cgit 


From 507e51418ca0c98640310aa02450720825b2b6b1 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 12 Nov 2013 15:10:13 -0800
Subject: checkpatch: improve "return is not a function" test

Find a few more cases where parentheses are used around the value of a
return statement.

This now uses the "$balanced_parens" test and also makes the test depend
on perl v5.10 and higher.

This now finds return with parenthesis uses the old code did not find
like:

ERROR: return is not a function, parentheses are not required
#211: FILE: arch/m68k/include/asm/sun3xflop.h:211:
+		return ((error == 0) ? 0 : -1);

Signed-off-by: Joe Perches <joe@perches.com>
Tested-by: David Cohen <david.a.cohen@linux.intel.com>
Acked-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 18 ++++--------------
 1 file changed, 4 insertions(+), 14 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index ec9bbf863d50..6e0f1ec0d6f2 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3233,21 +3233,10 @@ sub process {
 		}
 
 # Return is not a function.
-		if (defined($stat) && $stat =~ /^.\s*return(\s*)(\(.*);/s) {
+		if (defined($stat) && $stat =~ /^.\s*return(\s*)\(/s) {
 			my $spacing = $1;
-			my $value = $2;
-
-			# Flatten any parentheses
-			$value =~ s/\(/ \(/g;
-			$value =~ s/\)/\) /g;
-			while ($value =~ s/\[[^\[\]]*\]/1/ ||
-			       $value !~ /(?:$Ident|-?$Constant)\s*
-					     $Compare\s*
-					     (?:$Ident|-?$Constant)/x &&
-			       $value =~ s/\([^\(\)]*\)/1/) {
-			}
-#print "value<$value>\n";
-			if ($value =~ /^\s*(?:$Ident|-?$Constant)\s*$/) {
+			if ($^V && $^V ge 5.10.0 &&
+			    $stat =~ /^.\s*return\s*$balanced_parens\s*;\s*$/) {
 				ERROR("RETURN_PARENTHESES",
 				      "return is not a function, parentheses are not required\n" . $herecurr);
 
@@ -3256,6 +3245,7 @@ sub process {
 				      "space required before the open parenthesis '('\n" . $herecurr);
 			}
 		}
+
 # Return of what appears to be an errno should normally be -'ve
 		if ($line =~ /^.\s*return\s*(E[A-Z]*)\s*;/) {
 			my $name = $1;
-- 
cgit 


From 2b7ab45395dc4d91ef30985f76d90a8f28f58c27 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 12 Nov 2013 15:10:14 -0800
Subject: checkpatch: don't require kernel style __attribute__ shortcuts in
 uapi paths

Avoid prescribing kernel styled shortcuts for gcc extensions of
__attribute__((foo)) in the uapi include paths.

Fix $realfile filename when using -f/--file to not remove first level
directory as if the filename was used in a -P1 patch.  Only strip the
first level directory (typically a or b) for P1 patches.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: "Dixit, Ashutosh" <ashutosh.dixit@intel.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 19 ++++++++++++-------
 1 file changed, 12 insertions(+), 7 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 6e0f1ec0d6f2..1eb5d2fa8d20 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1769,11 +1769,11 @@ sub process {
 		# extract the filename as it passes
 		if ($line =~ /^diff --git.*?(\S+)$/) {
 			$realfile = $1;
-			$realfile =~ s@^([^/]*)/@@;
+			$realfile =~ s@^([^/]*)/@@ if (!$file);
 			$in_commit_log = 0;
 		} elsif ($line =~ /^\+\+\+\s+(\S+)/) {
 			$realfile = $1;
-			$realfile =~ s@^([^/]*)/@@;
+			$realfile =~ s@^([^/]*)/@@ if (!$file);
 			$in_commit_log = 0;
 
 			$p1_prefix = $1;
@@ -3877,7 +3877,8 @@ sub process {
 		}
 
 # Check for __inline__ and __inline, prefer inline
-		if ($line =~ /\b(__inline__|__inline)\b/) {
+		if ($realfile !~ m@\binclude/uapi/@ &&
+		    $line =~ /\b(__inline__|__inline)\b/) {
 			if (WARN("INLINE",
 				 "plain inline is preferred over $1\n" . $herecurr) &&
 			    $fix) {
@@ -3887,19 +3888,22 @@ sub process {
 		}
 
 # Check for __attribute__ packed, prefer __packed
-		if ($line =~ /\b__attribute__\s*\(\s*\(.*\bpacked\b/) {
+		if ($realfile !~ m@\binclude/uapi/@ &&
+		    $line =~ /\b__attribute__\s*\(\s*\(.*\bpacked\b/) {
 			WARN("PREFER_PACKED",
 			     "__packed is preferred over __attribute__((packed))\n" . $herecurr);
 		}
 
 # Check for __attribute__ aligned, prefer __aligned
-		if ($line =~ /\b__attribute__\s*\(\s*\(.*aligned/) {
+		if ($realfile !~ m@\binclude/uapi/@ &&
+		    $line =~ /\b__attribute__\s*\(\s*\(.*aligned/) {
 			WARN("PREFER_ALIGNED",
 			     "__aligned(size) is preferred over __attribute__((aligned(size)))\n" . $herecurr);
 		}
 
 # Check for __attribute__ format(printf, prefer __printf
-		if ($line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf/) {
+		if ($realfile !~ m@\binclude/uapi/@ &&
+		    $line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf/) {
 			if (WARN("PREFER_PRINTF",
 				 "__printf(string-index, first-to-check) is preferred over __attribute__((format(printf, string-index, first-to-check)))\n" . $herecurr) &&
 			    $fix) {
@@ -3909,7 +3913,8 @@ sub process {
 		}
 
 # Check for __attribute__ format(scanf, prefer __scanf
-		if ($line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*scanf\b/) {
+		if ($realfile !~ m@\binclude/uapi/@ &&
+		    $line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*scanf\b/) {
 			if (WARN("PREFER_SCANF",
 				 "__scanf(string-index, first-to-check) is preferred over __attribute__((format(scanf, string-index, first-to-check)))\n" . $herecurr) &&
 			    $fix) {
-- 
cgit 


From 823b794ce176bcf135a062075737be71a78629dd Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 12 Nov 2013 15:10:15 -0800
Subject: checkpatch: add check for sscanf without return use

Naked use sscanf can be troublesome because the pointed to variables may
not have been set.

Add a warning when the sscanf return value is not used.

For now, do not add __must_check to the sscanf prototype because that will
cause a couple of hundred new warnings when compiling a kernel.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 1eb5d2fa8d20..61090e0ff613 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -4019,6 +4019,23 @@ sub process {
 			}
 		}
 
+# check for naked sscanf
+		if ($^V && $^V ge 5.10.0 &&
+		    defined $stat &&
+		    $stat =~ /\bsscanf\b/ &&
+		    ($stat !~ /$Ident\s*=\s*sscanf\s*$balanced_parens/ &&
+		     $stat !~ /\bsscanf\s*$balanced_parens\s*(?:$Compare)/ &&
+		     $stat !~ /(?:$Compare)\s*\bsscanf\s*$balanced_parens/)) {
+			my $lc = $stat =~ tr@\n@@;
+			$lc = $lc + $linenr;
+			my $stat_real = raw_line($linenr, 0);
+		        for (my $count = $linenr + 1; $count <= $lc; $count++) {
+				$stat_real = $stat_real . "\n" . raw_line($count, 0);
+			}
+			WARN("NAKED_SSCANF",
+			     "unchecked sscanf return value\n" . "$here\n$stat_real\n");
+		}
+
 # check for new externs in .h files.
 		if ($realfile =~ /\.h$/ &&
 		    $line =~ /^\+\s*(extern\s+)$Type\s*$Ident\s*\(/s) {
-- 
cgit 


From ae10b2b4eb01bedc91d29d5c5bb9e416fd806c40 Mon Sep 17 00:00:00 2001
From: Jason Baron <jbaron@akamai.com>
Date: Tue, 12 Nov 2013 15:10:16 -0800
Subject: epoll: optimize EPOLL_CTL_DEL using rcu

Nathan Zimmer found that once we get over 10+ cpus, the scalability of
SPECjbb falls over due to the contention on the global 'epmutex', which is
taken in on EPOLL_CTL_ADD and EPOLL_CTL_DEL operations.

Patch #1 removes the 'epmutex' lock completely from the EPOLL_CTL_DEL path
by using rcu to guard against any concurrent traversals.

Patch #2 remove the 'epmutex' lock from EPOLL_CTL_ADD operations for
simple topologies.  IE when adding a link from an epoll file descriptor to
a wakeup source, where the epoll file descriptor is not nested.

This patch (of 2):

Optimize EPOLL_CTL_DEL such that it does not require the 'epmutex' by
converting the file->f_ep_links list into an rcu one.  In this way, we can
traverse the epoll network on the add path in parallel with deletes.
Since deletes can't create loops or worse wakeup paths, this is safe.

This patch in combination with the patch "epoll: Do not take global 'epmutex'
for simple topologies", shows a dramatic performance improvement in
scalability for SPECjbb.

Signed-off-by: Jason Baron <jbaron@akamai.com>
Tested-by: Nathan Zimmer <nzimmer@sgi.com>
Cc: Eric Wong <normalperson@yhbt.net>
Cc: Nelson Elhage <nelhage@nelhage.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: "Paul E. McKenney" <paulmck@us.ibm.com>
CC: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/eventpoll.c | 56 ++++++++++++++++++++++++++++++++------------------------
 1 file changed, 32 insertions(+), 24 deletions(-)

diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 810c28fb8c3c..584249454822 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -41,6 +41,7 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/compat.h>
+#include <linux/rculist.h>
 
 /*
  * LOCKING:
@@ -133,8 +134,12 @@ struct nested_calls {
  * of these on a server and we do not want this to take another cache line.
  */
 struct epitem {
-	/* RB tree node used to link this structure to the eventpoll RB tree */
-	struct rb_node rbn;
+	union {
+		/* RB tree node links this structure to the eventpoll RB tree */
+		struct rb_node rbn;
+		/* Used to free the struct epitem */
+		struct rcu_head rcu;
+	};
 
 	/* List header used to link this structure to the eventpoll ready list */
 	struct list_head rdllink;
@@ -671,6 +676,12 @@ static int ep_scan_ready_list(struct eventpoll *ep,
 	return error;
 }
 
+static void epi_rcu_free(struct rcu_head *head)
+{
+	struct epitem *epi = container_of(head, struct epitem, rcu);
+	kmem_cache_free(epi_cache, epi);
+}
+
 /*
  * Removes a "struct epitem" from the eventpoll RB tree and deallocates
  * all the associated resources. Must be called with "mtx" held.
@@ -692,8 +703,7 @@ static int ep_remove(struct eventpoll *ep, struct epitem *epi)
 
 	/* Remove the current item from the list of epoll hooks */
 	spin_lock(&file->f_lock);
-	if (ep_is_linked(&epi->fllink))
-		list_del_init(&epi->fllink);
+	list_del_rcu(&epi->fllink);
 	spin_unlock(&file->f_lock);
 
 	rb_erase(&epi->rbn, &ep->rbr);
@@ -704,9 +714,14 @@ static int ep_remove(struct eventpoll *ep, struct epitem *epi)
 	spin_unlock_irqrestore(&ep->lock, flags);
 
 	wakeup_source_unregister(ep_wakeup_source(epi));
-
-	/* At this point it is safe to free the eventpoll item */
-	kmem_cache_free(epi_cache, epi);
+	/*
+	 * At this point it is safe to free the eventpoll item. Use the union
+	 * field epi->rcu, since we are trying to minimize the size of
+	 * 'struct epitem'. The 'rbn' field is no longer in use. Protected by
+	 * ep->mtx. The rcu read side, reverse_path_check_proc(), does not make
+	 * use of the rbn field.
+	 */
+	call_rcu(&epi->rcu, epi_rcu_free);
 
 	atomic_long_dec(&ep->user->epoll_watches);
 
@@ -872,7 +887,6 @@ static const struct file_operations eventpoll_fops = {
  */
 void eventpoll_release_file(struct file *file)
 {
-	struct list_head *lsthead = &file->f_ep_links;
 	struct eventpoll *ep;
 	struct epitem *epi;
 
@@ -890,17 +904,12 @@ void eventpoll_release_file(struct file *file)
 	 * Besides, ep_remove() acquires the lock, so we can't hold it here.
 	 */
 	mutex_lock(&epmutex);
-
-	while (!list_empty(lsthead)) {
-		epi = list_first_entry(lsthead, struct epitem, fllink);
-
+	list_for_each_entry_rcu(epi, &file->f_ep_links, fllink) {
 		ep = epi->ep;
-		list_del_init(&epi->fllink);
 		mutex_lock_nested(&ep->mtx, 0);
 		ep_remove(ep, epi);
 		mutex_unlock(&ep->mtx);
 	}
-
 	mutex_unlock(&epmutex);
 }
 
@@ -1138,7 +1147,9 @@ static int reverse_path_check_proc(void *priv, void *cookie, int call_nests)
 	struct file *child_file;
 	struct epitem *epi;
 
-	list_for_each_entry(epi, &file->f_ep_links, fllink) {
+	/* CTL_DEL can remove links here, but that can't increase our count */
+	rcu_read_lock();
+	list_for_each_entry_rcu(epi, &file->f_ep_links, fllink) {
 		child_file = epi->ep->file;
 		if (is_file_epoll(child_file)) {
 			if (list_empty(&child_file->f_ep_links)) {
@@ -1160,6 +1171,7 @@ static int reverse_path_check_proc(void *priv, void *cookie, int call_nests)
 				"file is not an ep!\n");
 		}
 	}
+	rcu_read_unlock();
 	return error;
 }
 
@@ -1286,7 +1298,7 @@ static int ep_insert(struct eventpoll *ep, struct epoll_event *event,
 
 	/* Add the current item to the list of active epoll hook for this file */
 	spin_lock(&tfile->f_lock);
-	list_add_tail(&epi->fllink, &tfile->f_ep_links);
+	list_add_tail_rcu(&epi->fllink, &tfile->f_ep_links);
 	spin_unlock(&tfile->f_lock);
 
 	/*
@@ -1327,8 +1339,7 @@ static int ep_insert(struct eventpoll *ep, struct epoll_event *event,
 
 error_remove_epi:
 	spin_lock(&tfile->f_lock);
-	if (ep_is_linked(&epi->fllink))
-		list_del_init(&epi->fllink);
+	list_del_rcu(&epi->fllink);
 	spin_unlock(&tfile->f_lock);
 
 	rb_erase(&epi->rbn, &ep->rbr);
@@ -1844,15 +1855,12 @@ SYSCALL_DEFINE4(epoll_ctl, int, epfd, int, op, int, fd,
 	 * and hang them on the tfile_check_list, so we can check that we
 	 * haven't created too many possible wakeup paths.
 	 *
-	 * We need to hold the epmutex across both ep_insert and ep_remove
-	 * b/c we want to make sure we are looking at a coherent view of
-	 * epoll network.
+	 * We need to hold the epmutex across ep_insert to prevent
+	 * multple adds from creating loops in parallel.
 	 */
-	if (op == EPOLL_CTL_ADD || op == EPOLL_CTL_DEL) {
+	if (op == EPOLL_CTL_ADD) {
 		mutex_lock(&epmutex);
 		did_lock_epmutex = 1;
-	}
-	if (op == EPOLL_CTL_ADD) {
 		if (is_file_epoll(tf.file)) {
 			error = -ELOOP;
 			if (ep_loop_check(ep, tf.file) != 0) {
-- 
cgit 


From 67347fe4e6326338ee217d7eb826bedf30b2e155 Mon Sep 17 00:00:00 2001
From: Jason Baron <jbaron@akamai.com>
Date: Tue, 12 Nov 2013 15:10:18 -0800
Subject: epoll: do not take global 'epmutex' for simple topologies

When calling EPOLL_CTL_ADD for an epoll file descriptor that is attached
directly to a wakeup source, we do not need to take the global 'epmutex',
unless the epoll file descriptor is nested.  The purpose of taking the
'epmutex' on add is to prevent complex topologies such as loops and deep
wakeup paths from forming in parallel through multiple EPOLL_CTL_ADD
operations.  However, for the simple case of an epoll file descriptor
attached directly to a wakeup source (with no nesting), we do not need to
hold the 'epmutex'.

This patch along with 'epoll: optimize EPOLL_CTL_DEL using rcu' improves
scalability on larger systems.  Quoting Nathan Zimmer's mail on SPECjbb
performance:

"On the 16 socket run the performance went from 35k jOPS to 125k jOPS.  In
addition the benchmark when from scaling well on 10 sockets to scaling
well on just over 40 sockets.

...

Currently the benchmark stops scaling at around 40-44 sockets but it seems like
I found a second unrelated bottleneck."

[akpm@linux-foundation.org: use `bool' for boolean variables, remove unneeded/undesirable cast of void*, add missed ep_scan_ready_list() kerneldoc]
Signed-off-by: Jason Baron <jbaron@akamai.com>
Tested-by: Nathan Zimmer <nzimmer@sgi.com>
Cc: Eric Wong <normalperson@yhbt.net>
Cc: Nelson Elhage <nelhage@nelhage.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: "Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/eventpoll.c | 95 ++++++++++++++++++++++++++++++++++++++++++----------------
 1 file changed, 69 insertions(+), 26 deletions(-)

diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 584249454822..f7fe7e3ce664 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -585,14 +585,14 @@ static inline void ep_pm_stay_awake_rcu(struct epitem *epi)
  * @sproc: Pointer to the scan callback.
  * @priv: Private opaque data passed to the @sproc callback.
  * @depth: The current depth of recursive f_op->poll calls.
+ * @ep_locked: caller already holds ep->mtx
  *
  * Returns: The same integer error code returned by the @sproc callback.
  */
 static int ep_scan_ready_list(struct eventpoll *ep,
 			      int (*sproc)(struct eventpoll *,
 					   struct list_head *, void *),
-			      void *priv,
-			      int depth)
+			      void *priv, int depth, bool ep_locked)
 {
 	int error, pwake = 0;
 	unsigned long flags;
@@ -603,7 +603,9 @@ static int ep_scan_ready_list(struct eventpoll *ep,
 	 * We need to lock this because we could be hit by
 	 * eventpoll_release_file() and epoll_ctl().
 	 */
-	mutex_lock_nested(&ep->mtx, depth);
+
+	if (!ep_locked)
+		mutex_lock_nested(&ep->mtx, depth);
 
 	/*
 	 * Steal the ready list, and re-init the original one to the
@@ -667,7 +669,8 @@ static int ep_scan_ready_list(struct eventpoll *ep,
 	}
 	spin_unlock_irqrestore(&ep->lock, flags);
 
-	mutex_unlock(&ep->mtx);
+	if (!ep_locked)
+		mutex_unlock(&ep->mtx);
 
 	/* We have to call this outside the lock */
 	if (pwake)
@@ -822,15 +825,34 @@ static int ep_read_events_proc(struct eventpoll *ep, struct list_head *head,
 	return 0;
 }
 
+static void ep_ptable_queue_proc(struct file *file, wait_queue_head_t *whead,
+				 poll_table *pt);
+
+struct readyevents_arg {
+	struct eventpoll *ep;
+	bool locked;
+};
+
 static int ep_poll_readyevents_proc(void *priv, void *cookie, int call_nests)
 {
-	return ep_scan_ready_list(priv, ep_read_events_proc, NULL, call_nests + 1);
+	struct readyevents_arg *arg = priv;
+
+	return ep_scan_ready_list(arg->ep, ep_read_events_proc, NULL,
+				  call_nests + 1, arg->locked);
 }
 
 static unsigned int ep_eventpoll_poll(struct file *file, poll_table *wait)
 {
 	int pollflags;
 	struct eventpoll *ep = file->private_data;
+	struct readyevents_arg arg;
+
+	/*
+	 * During ep_insert() we already hold the ep->mtx for the tfile.
+	 * Prevent re-aquisition.
+	 */
+	arg.locked = wait && (wait->_qproc == ep_ptable_queue_proc);
+	arg.ep = ep;
 
 	/* Insert inside our poll wait queue */
 	poll_wait(file, &ep->poll_wait, wait);
@@ -842,7 +864,7 @@ static unsigned int ep_eventpoll_poll(struct file *file, poll_table *wait)
 	 * could re-enter here.
 	 */
 	pollflags = ep_call_nested(&poll_readywalk_ncalls, EP_MAX_NESTS,
-				   ep_poll_readyevents_proc, ep, ep, current);
+				   ep_poll_readyevents_proc, &arg, ep, current);
 
 	return pollflags != -1 ? pollflags : 0;
 }
@@ -1243,7 +1265,7 @@ static noinline void ep_destroy_wakeup_source(struct epitem *epi)
  * Must be called with "mtx" held.
  */
 static int ep_insert(struct eventpoll *ep, struct epoll_event *event,
-		     struct file *tfile, int fd)
+		     struct file *tfile, int fd, int full_check)
 {
 	int error, revents, pwake = 0;
 	unsigned long flags;
@@ -1309,7 +1331,7 @@ static int ep_insert(struct eventpoll *ep, struct epoll_event *event,
 
 	/* now check if we've created too many backpaths */
 	error = -EINVAL;
-	if (reverse_path_check())
+	if (full_check && reverse_path_check())
 		goto error_remove_epi;
 
 	/* We have to drop the new item inside our item list to keep track of it */
@@ -1532,7 +1554,7 @@ static int ep_send_events(struct eventpoll *ep,
 	esed.maxevents = maxevents;
 	esed.events = events;
 
-	return ep_scan_ready_list(ep, ep_send_events_proc, &esed, 0);
+	return ep_scan_ready_list(ep, ep_send_events_proc, &esed, 0, false);
 }
 
 static inline struct timespec ep_set_mstimeout(long ms)
@@ -1802,11 +1824,12 @@ SYSCALL_DEFINE4(epoll_ctl, int, epfd, int, op, int, fd,
 		struct epoll_event __user *, event)
 {
 	int error;
-	int did_lock_epmutex = 0;
+	int full_check = 0;
 	struct fd f, tf;
 	struct eventpoll *ep;
 	struct epitem *epi;
 	struct epoll_event epds;
+	struct eventpoll *tep = NULL;
 
 	error = -EFAULT;
 	if (ep_op_has_event(op) &&
@@ -1855,23 +1878,40 @@ SYSCALL_DEFINE4(epoll_ctl, int, epfd, int, op, int, fd,
 	 * and hang them on the tfile_check_list, so we can check that we
 	 * haven't created too many possible wakeup paths.
 	 *
-	 * We need to hold the epmutex across ep_insert to prevent
-	 * multple adds from creating loops in parallel.
+	 * We do not need to take the global 'epumutex' on EPOLL_CTL_ADD when
+	 * the epoll file descriptor is attaching directly to a wakeup source,
+	 * unless the epoll file descriptor is nested. The purpose of taking the
+	 * 'epmutex' on add is to prevent complex toplogies such as loops and
+	 * deep wakeup paths from forming in parallel through multiple
+	 * EPOLL_CTL_ADD operations.
 	 */
+	mutex_lock_nested(&ep->mtx, 0);
 	if (op == EPOLL_CTL_ADD) {
-		mutex_lock(&epmutex);
-		did_lock_epmutex = 1;
-		if (is_file_epoll(tf.file)) {
-			error = -ELOOP;
-			if (ep_loop_check(ep, tf.file) != 0) {
-				clear_tfile_check_list();
-				goto error_tgt_fput;
+		if (!list_empty(&f.file->f_ep_links) ||
+						is_file_epoll(tf.file)) {
+			full_check = 1;
+			mutex_unlock(&ep->mtx);
+			mutex_lock(&epmutex);
+			if (is_file_epoll(tf.file)) {
+				error = -ELOOP;
+				if (ep_loop_check(ep, tf.file) != 0) {
+					clear_tfile_check_list();
+					goto error_tgt_fput;
+				}
+			} else
+				list_add(&tf.file->f_tfile_llink,
+							&tfile_check_list);
+			mutex_lock_nested(&ep->mtx, 0);
+			if (is_file_epoll(tf.file)) {
+				tep = tf.file->private_data;
+				mutex_lock_nested(&tep->mtx, 1);
 			}
-		} else
-			list_add(&tf.file->f_tfile_llink, &tfile_check_list);
+		}
+	}
+	if (op == EPOLL_CTL_DEL && is_file_epoll(tf.file)) {
+		tep = tf.file->private_data;
+		mutex_lock_nested(&tep->mtx, 1);
 	}
-
-	mutex_lock_nested(&ep->mtx, 0);
 
 	/*
 	 * Try to lookup the file inside our RB tree, Since we grabbed "mtx"
@@ -1885,10 +1925,11 @@ SYSCALL_DEFINE4(epoll_ctl, int, epfd, int, op, int, fd,
 	case EPOLL_CTL_ADD:
 		if (!epi) {
 			epds.events |= POLLERR | POLLHUP;
-			error = ep_insert(ep, &epds, tf.file, fd);
+			error = ep_insert(ep, &epds, tf.file, fd, full_check);
 		} else
 			error = -EEXIST;
-		clear_tfile_check_list();
+		if (full_check)
+			clear_tfile_check_list();
 		break;
 	case EPOLL_CTL_DEL:
 		if (epi)
@@ -1904,10 +1945,12 @@ SYSCALL_DEFINE4(epoll_ctl, int, epfd, int, op, int, fd,
 			error = -ENOENT;
 		break;
 	}
+	if (tep != NULL)
+		mutex_unlock(&tep->mtx);
 	mutex_unlock(&ep->mtx);
 
 error_tgt_fput:
-	if (did_lock_epmutex)
+	if (full_check)
 		mutex_unlock(&epmutex);
 
 	fdput(tf);
-- 
cgit 


From 65321547c8be5b00427ac8de23fd15801b68de1f Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Tue, 12 Nov 2013 15:10:19 -0800
Subject: init.h: document the existence of __initconst

Initdata can be const since more than 5 years, using the __initconst
keyword.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/init.h | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/include/linux/init.h b/include/linux/init.h
index f1c27a71d03c..8e68a64bfe00 100644
--- a/include/linux/init.h
+++ b/include/linux/init.h
@@ -26,8 +26,8 @@
  * extern int initialize_foobar_device(int, int, int) __init;
  *
  * For initialized data:
- * You should insert __initdata between the variable name and equal
- * sign followed by value, e.g.:
+ * You should insert __initdata or __initconst between the variable name
+ * and equal sign followed by value, e.g.:
  *
  * static int init_variable __initdata = 0;
  * static const char linux_logo[] __initconst = { 0x32, 0x36, ... };
@@ -35,8 +35,6 @@
  * Don't forget to initialize data not at file scope, i.e. within a function,
  * as gcc otherwise puts the data into the bss section and not into the init
  * section.
- * 
- * Also note, that this data cannot be "const".
  */
 
 /* These are for everybody (although not all archs will actually
-- 
cgit 


From df3ef3af503e131f7848652af8be21747fd57419 Mon Sep 17 00:00:00 2001
From: P J P <prasad@redhat.com>
Date: Tue, 12 Nov 2013 15:10:20 -0800
Subject: init/do_mounts_rd.c: fix NULL pointer dereference while loading
 initramfs

Make menuconfig allows one to choose compression format of an initial
ramdisk image.  But this choice does not result in duly compressed initial
ramdisk image.  Because - $ make install - does not pass on the selected
compression choice to the dracut(8) tool, which creates the initramfs
file.  dracut(8) generates the image with the default compression, ie.
gzip(1).

If a user chose any other compression instead of gzip(1), it leads to a
crash due to NULL pointer dereference in crd_load(), caused by a NULL
function pointer returned by the 'decompress_method()' routine.  Because
the initramfs image is gzip(1) compressed, whereas the kernel knows only
to decompress the chosen format and not gzip(1).

This patch replaces the crash by an explicit panic() call with an
appropriate error message. This shall prevent the kernel from
eventually panicking in: init/do_mounts.c: mount_block_root() with
  -> panic("VFS: Unable to mount root fs on %s", b);

[akpm@linux-foundation.org: mention that the problem is with the ramdisk, don't print known-to-be-NULL value]
Signed-off-by: P J P <prasad@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 init/do_mounts_rd.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/init/do_mounts_rd.c b/init/do_mounts_rd.c
index 6be2879cca66..143e98de6f29 100644
--- a/init/do_mounts_rd.c
+++ b/init/do_mounts_rd.c
@@ -342,6 +342,13 @@ static int __init crd_load(int in_fd, int out_fd, decompress_fn deco)
 	int result;
 	crd_infd = in_fd;
 	crd_outfd = out_fd;
+
+	if (!deco) {
+		pr_emerg("Invalid ramdisk decompression routine.  "
+			 "Select appropriate config option.\n");
+		panic("Could not decompress initial ramdisk image.");
+	}
+
 	result = deco(NULL, 0, compr_fill, compr_flush, NULL, NULL, error);
 	if (decompress_error)
 		result = 1;
-- 
cgit 


From ba24762bd53faaf39cc8b991175636954b7ef4be Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Tue, 12 Nov 2013 15:10:21 -0800
Subject: init: make init failures more explicit

This patch proposes to make init failures more explicit.

Before this, the "No init found" message didn't help much.  It could
sometimes be misleading and actually mean "No *working* init found".

This message could hide many different issues:
 - no init program candidates found at all
 - some init program candidates exist but can't be executed (missing
   execute permissions, failed to load shared libraries, executable
   compiled for an unknown architecture...)

This patch notifies the kernel user when a candidate init program is found
but can't be executed.  In each failure situation, the error code is
displayed, to quickly find the root cause.  "No init found" is also
replaced by "No working init found", which is more correct.

This will help embedded Linux developers (especially the newcomers),
regularly making and debugging new root filesystems.

Credits to Geert Uytterhoeven and Janne Karhunen for their improvement
suggestions.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Tested-by: Janne Karhunen <Janne.Karhunen@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 init/main.c | 39 +++++++++++++++++++++++++++++----------
 1 file changed, 29 insertions(+), 10 deletions(-)

diff --git a/init/main.c b/init/main.c
index aa061ef17626..67ee8ef0a669 100644
--- a/init/main.c
+++ b/init/main.c
@@ -810,10 +810,26 @@ static int run_init_process(const char *init_filename)
 		(const char __user *const __user *)envp_init);
 }
 
+static int try_to_run_init_process(const char *init_filename)
+{
+	int ret;
+
+	ret = run_init_process(init_filename);
+
+	if (ret && ret != -ENOENT) {
+		pr_err("Starting init: %s exists but couldn't execute it (error %d)\n",
+		       init_filename, ret);
+	}
+
+	return ret;
+}
+
 static noinline void __init kernel_init_freeable(void);
 
 static int __ref kernel_init(void *unused)
 {
+	int ret;
+
 	kernel_init_freeable();
 	/* need to finish all async __init code before freeing the memory */
 	async_synchronize_full();
@@ -825,9 +841,11 @@ static int __ref kernel_init(void *unused)
 	flush_delayed_fput();
 
 	if (ramdisk_execute_command) {
-		if (!run_init_process(ramdisk_execute_command))
+		ret = run_init_process(ramdisk_execute_command);
+		if (!ret)
 			return 0;
-		pr_err("Failed to execute %s\n", ramdisk_execute_command);
+		pr_err("Failed to execute %s (error %d)\n",
+		       ramdisk_execute_command, ret);
 	}
 
 	/*
@@ -837,18 +855,19 @@ static int __ref kernel_init(void *unused)
 	 * trying to recover a really broken machine.
 	 */
 	if (execute_command) {
-		if (!run_init_process(execute_command))
+		ret = run_init_process(execute_command);
+		if (!ret)
 			return 0;
-		pr_err("Failed to execute %s.  Attempting defaults...\n",
-			execute_command);
+		pr_err("Failed to execute %s (error %d).  Attempting defaults...\n",
+			execute_command, ret);
 	}
-	if (!run_init_process("/sbin/init") ||
-	    !run_init_process("/etc/init") ||
-	    !run_init_process("/bin/init") ||
-	    !run_init_process("/bin/sh"))
+	if (!try_to_run_init_process("/sbin/init") ||
+	    !try_to_run_init_process("/etc/init") ||
+	    !try_to_run_init_process("/bin/init") ||
+	    !try_to_run_init_process("/bin/sh"))
 		return 0;
 
-	panic("No init found.  Try passing init= option to kernel. "
+	panic("No working init found.  Try passing init= option to kernel. "
 	      "See Linux Documentation/init.txt for guidance.");
 }
 
-- 
cgit 


From 9ba4bcb645898d562498ea66a0df958ef0e7a68c Mon Sep 17 00:00:00 2001
From: P J P <ppandit@redhat.com>
Date: Tue, 12 Nov 2013 15:10:22 -0800
Subject: initramfs: read CONFIG_RD_ variables for initramfs compression

When expert configuration option(CONFIG_EXPERT) is enabled, menuconfig
offers a choice of compression algorithm to compress initial ramfs image;
This choice is stored into CONFIG_RD_* variables.  But usr/Makefile uses
earlier INITRAMFS_COMPRESSION_* macros to build initial ramfs file.  Since
none of them is defined, resulting 'initramfs_data.cpio' file remains
un-compressed.

This patch updates the Makefile to use CONFIG_RD_* variables and adds
support for LZ4 compression algorithm.  Also updates the
'gen_initramfs_list.sh' script to check whether a selected compression
command is accessible or not.  And fall-back to default gzip(1)
compression when it is not.

Signed-off-by: P J P <prasad@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/gen_initramfs_list.sh | 24 ++++++++++++++++++------
 usr/Makefile                  | 23 ++++++++++++++---------
 2 files changed, 32 insertions(+), 15 deletions(-)

diff --git a/scripts/gen_initramfs_list.sh b/scripts/gen_initramfs_list.sh
index b482f162a18a..ef474098d9f1 100644
--- a/scripts/gen_initramfs_list.sh
+++ b/scripts/gen_initramfs_list.sh
@@ -240,12 +240,24 @@ case "$arg" in
 		output_file="$1"
 		cpio_list="$(mktemp ${TMPDIR:-/tmp}/cpiolist.XXXXXX)"
 		output=${cpio_list}
-		echo "$output_file" | grep -q "\.gz$" && compr="gzip -n -9 -f"
-		echo "$output_file" | grep -q "\.bz2$" && compr="bzip2 -9 -f"
-		echo "$output_file" | grep -q "\.lzma$" && compr="lzma -9 -f"
-		echo "$output_file" | grep -q "\.xz$" && \
-				compr="xz --check=crc32 --lzma2=dict=1MiB"
-		echo "$output_file" | grep -q "\.lzo$" && compr="lzop -9 -f"
+		echo "$output_file" | grep -q "\.gz$" \
+                && [ -x "`which gzip 2> /dev/null`" ] \
+                && compr="gzip -n -9 -f"
+		echo "$output_file" | grep -q "\.bz2$" \
+                && [ -x "`which bzip2 2> /dev/null`" ] \
+                && compr="bzip2 -9 -f"
+		echo "$output_file" | grep -q "\.lzma$" \
+                && [ -x "`which lzma 2> /dev/null`" ] \
+                && compr="lzma -9 -f"
+		echo "$output_file" | grep -q "\.xz$" \
+                && [ -x "`which xz 2> /dev/null`" ] \
+                && compr="xz --check=crc32 --lzma2=dict=1MiB"
+		echo "$output_file" | grep -q "\.lzo$" \
+                && [ -x "`which lzop 2> /dev/null`" ] \
+                && compr="lzop -9 -f"
+		echo "$output_file" | grep -q "\.lz4$" \
+                && [ -x "`which lz4 2> /dev/null`" ] \
+                && compr="lz4 -9 -f"
 		echo "$output_file" | grep -q "\.cpio$" && compr="cat"
 		shift
 		;;
diff --git a/usr/Makefile b/usr/Makefile
index 029ffe6cd0d8..e767f019accf 100644
--- a/usr/Makefile
+++ b/usr/Makefile
@@ -6,20 +6,23 @@ klibcdirs:;
 PHONY += klibcdirs
 
 
-# Gzip
-suffix_$(CONFIG_INITRAMFS_COMPRESSION_GZIP)   = .gz
-
 # Bzip2
-suffix_$(CONFIG_INITRAMFS_COMPRESSION_BZIP2)  = .bz2
+suffix_$(CONFIG_RD_BZIP2)  = .bz2
 
 # Lzma
-suffix_$(CONFIG_INITRAMFS_COMPRESSION_LZMA)   = .lzma
+suffix_$(CONFIG_RD_LZMA)   = .lzma
 
 # XZ
-suffix_$(CONFIG_INITRAMFS_COMPRESSION_XZ)     = .xz
+suffix_$(CONFIG_RD_XZ)     = .xz
 
 # Lzo
-suffix_$(CONFIG_INITRAMFS_COMPRESSION_LZO)   = .lzo
+suffix_$(CONFIG_RD_LZO)    = .lzo
+
+# Lz4
+suffix_$(CONFIG_RD_LZ4)    = .lz4
+
+# Gzip
+suffix_$(CONFIG_RD_GZIP)   = .gz
 
 AFLAGS_initramfs_data.o += -DINITRAMFS_IMAGE="usr/initramfs_data.cpio$(suffix_y)"
 
@@ -53,7 +56,10 @@ endif
 quiet_cmd_initfs = GEN     $@
       cmd_initfs = $(initramfs) -o $@ $(ramfs-args) $(ramfs-input)
 
-targets := initramfs_data.cpio.gz initramfs_data.cpio.bz2 initramfs_data.cpio.lzma initramfs_data.cpio.xz initramfs_data.cpio.lzo initramfs_data.cpio
+targets := initramfs_data.cpio.gz initramfs_data.cpio.bz2 \
+	initramfs_data.cpio.lzma initramfs_data.cpio.xz \
+	initramfs_data.cpio.lzo initramfs_data.cpio.lz4 \
+	initramfs_data.cpio
 # do not try to update files included in initramfs
 $(deps_initramfs): ;
 
@@ -66,4 +72,3 @@ $(deps_initramfs): klibcdirs
 $(obj)/initramfs_data.cpio$(suffix_y): $(obj)/gen_init_cpio $(deps_initramfs) klibcdirs
 	$(Q)$(initramfs) -l $(ramfs-input) > $(obj)/.initramfs_data.cpio.d
 	$(call if_changed,initfs)
-
-- 
cgit 


From ab76786561e0fa1c6d45d6963ab87bb6d628d4cb Mon Sep 17 00:00:00 2001
From: Joe Mario <jmario@redhat.com>
Date: Tue, 12 Nov 2013 15:10:23 -0800
Subject: kprobes: use KSYM_NAME_LEN to size identifier buffers

Use KSYM_NAME_LEN to size identifier buffers, so that it can be easier
increased.

Signed-off-by: Joe Mario <jmario@redhat.com>
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/kprobes.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/kprobes.c b/kernel/kprobes.c
index a0d367a49122..ceeadfcabb76 100644
--- a/kernel/kprobes.c
+++ b/kernel/kprobes.c
@@ -2066,7 +2066,7 @@ static int __init init_kprobes(void)
 {
 	int i, err = 0;
 	unsigned long offset = 0, size = 0;
-	char *modname, namebuf[128];
+	char *modname, namebuf[KSYM_NAME_LEN];
 	const char *symbol_name;
 	void *addr;
 	struct kprobe_blackpoint *kb;
@@ -2192,7 +2192,7 @@ static int __kprobes show_kprobe_addr(struct seq_file *pi, void *v)
 	const char *sym = NULL;
 	unsigned int i = *(loff_t *) v;
 	unsigned long offset = 0;
-	char *modname, namebuf[128];
+	char *modname, namebuf[KSYM_NAME_LEN];
 
 	head = &kprobe_table[i];
 	preempt_disable();
-- 
cgit 


From 10992435b30eb470e6b91d2415abfb79680d00b6 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Tue, 12 Nov 2013 15:10:24 -0800
Subject: drivers/message/i2o/driver.c: add missing destroy_workqueue() on
 error in i2o_driver_register()

Add the missing destroy_workqueue() before return from
i2o_driver_register() in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/message/i2o/driver.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/drivers/message/i2o/driver.c b/drivers/message/i2o/driver.c
index b6b92d760510..1b18a0d1d05b 100644
--- a/drivers/message/i2o/driver.c
+++ b/drivers/message/i2o/driver.c
@@ -105,7 +105,8 @@ int i2o_driver_register(struct i2o_driver *drv)
 			osm_err("too many drivers registered, increase "
 				"max_drivers\n");
 			spin_unlock_irqrestore(&i2o_drivers_lock, flags);
-			return -EFAULT;
+			rc = -EFAULT;
+			goto out;
 		}
 
 	drv->context = i;
@@ -124,11 +125,14 @@ int i2o_driver_register(struct i2o_driver *drv)
 	}
 
 	rc = driver_register(&drv->driver);
-	if (rc) {
-		if (drv->event) {
-			destroy_workqueue(drv->event_queue);
-			drv->event_queue = NULL;
-		}
+	if (rc)
+		goto out;
+
+	return 0;
+out:
+	if (drv->event_queue) {
+		destroy_workqueue(drv->event_queue);
+		drv->event_queue = NULL;
 	}
 
 	return rc;
-- 
cgit 


From 50ccf0455e51eba51e645b3724c8e932c75774b1 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 12 Nov 2013 15:10:25 -0800
Subject: drivers/rtc/rtc-ds1307.c: release irq on error

'client->irq' was not released on error. Fix it.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-ds1307.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index ca18fd1433b3..e8ac439c43a5 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -956,7 +956,7 @@ read_rtc:
 					GFP_KERNEL);
 		if (!ds1307->nvram) {
 			err = -ENOMEM;
-			goto exit;
+			goto err_irq;
 		}
 		ds1307->nvram->attr.name = "nvram";
 		ds1307->nvram->attr.mode = S_IRUGO | S_IWUSR;
@@ -967,13 +967,15 @@ read_rtc:
 		ds1307->nvram_offset = chip->nvram_offset;
 		err = sysfs_create_bin_file(&client->dev.kobj, ds1307->nvram);
 		if (err)
-			goto exit;
+			goto err_irq;
 		set_bit(HAS_NVRAM, &ds1307->flags);
 		dev_info(&client->dev, "%zu bytes nvram\n", ds1307->nvram->size);
 	}
 
 	return 0;
 
+err_irq:
+	free_irq(client->irq, client);
 exit:
 	return err;
 }
-- 
cgit 


From c91fd91d686654f8afbbbca18f5ff0a6ebc9c7a2 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 12 Nov 2013 15:10:26 -0800
Subject: drivers/rtc/rtc-isl1208.c: remove redundant checks

i2c_smbus_read_byte_data() returns negative errno on failure.  Return the
value obtained from it directly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Herbert Valerio Riedel <hvr@gnu.org>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-isl1208.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c
index c016ad81767a..5a0bf7ce1033 100644
--- a/drivers/rtc/rtc-isl1208.c
+++ b/drivers/rtc/rtc-isl1208.c
@@ -144,11 +144,7 @@ isl1208_i2c_validate_client(struct i2c_client *client)
 static int
 isl1208_i2c_get_sr(struct i2c_client *client)
 {
-	int sr = i2c_smbus_read_byte_data(client, ISL1208_REG_SR);
-	if (sr < 0)
-		return -EIO;
-
-	return sr;
+	return i2c_smbus_read_byte_data(client, ISL1208_REG_SR);
 }
 
 static int
-- 
cgit 


From f16189aca0e2c6395e7fd6593c3a3063764c628d Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 12 Nov 2013 15:10:27 -0800
Subject: drivers/rtc/rtc-max6900.c: remove redundant checks

i2c_smbus_write_byte_data() returns negative errno on failure or 0 on
success.  Return the value obtained from it directly.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-max6900.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/rtc/rtc-max6900.c b/drivers/rtc/rtc-max6900.c
index 55969b1b771a..4804985b876e 100644
--- a/drivers/rtc/rtc-max6900.c
+++ b/drivers/rtc/rtc-max6900.c
@@ -164,14 +164,7 @@ static int max6900_i2c_read_time(struct i2c_client *client, struct rtc_time *tm)
 
 static int max6900_i2c_clear_write_protect(struct i2c_client *client)
 {
-	int rc;
-	rc = i2c_smbus_write_byte_data(client, MAX6900_REG_CONTROL_WRITE, 0);
-	if (rc < 0) {
-		dev_err(&client->dev, "%s: control register write failed\n",
-			__func__);
-		return -EIO;
-	}
-	return 0;
+	return i2c_smbus_write_byte_data(client, MAX6900_REG_CONTROL_WRITE, 0);
 }
 
 static int
-- 
cgit 


From 58f27d7d061b47f57c84cad7d9af239c6bc6977e Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 12 Nov 2013 15:10:28 -0800
Subject: drivers/rtc/rtc-vt8500.c: fix return value

Propagate the return value from platform_get_irq() instead of hardcoding.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-vt8500.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-vt8500.c b/drivers/rtc/rtc-vt8500.c
index c2d6331fc712..5be217df1d75 100644
--- a/drivers/rtc/rtc-vt8500.c
+++ b/drivers/rtc/rtc-vt8500.c
@@ -228,7 +228,7 @@ static int vt8500_rtc_probe(struct platform_device *pdev)
 	vt8500_rtc->irq_alarm = platform_get_irq(pdev, 0);
 	if (vt8500_rtc->irq_alarm < 0) {
 		dev_err(&pdev->dev, "No alarm IRQ resource defined\n");
-		return -ENXIO;
+		return vt8500_rtc->irq_alarm;
 	}
 
 	vt8500_rtc->res = devm_request_mem_region(&pdev->dev,
-- 
cgit 


From f3766250b2e9f2920c3c9ef9821827ac82fa7a84 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 12 Nov 2013 15:10:29 -0800
Subject: drivers/rtc/rtc-at91rm9200.c: use devm_* APIs

devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-at91rm9200.c | 28 +++++++---------------------
 1 file changed, 7 insertions(+), 21 deletions(-)

diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c
index 741892632ae0..8b2cd8a5a2ff 100644
--- a/drivers/rtc/rtc-at91rm9200.c
+++ b/drivers/rtc/rtc-at91rm9200.c
@@ -376,7 +376,8 @@ static int __init at91_rtc_probe(struct platform_device *pdev)
 		return -ENXIO;
 	}
 
-	at91_rtc_regs = ioremap(regs->start, resource_size(regs));
+	at91_rtc_regs = devm_ioremap(&pdev->dev, regs->start,
+				     resource_size(regs));
 	if (!at91_rtc_regs) {
 		dev_err(&pdev->dev, "failed to map registers, aborting.\n");
 		return -ENOMEM;
@@ -390,12 +391,12 @@ static int __init at91_rtc_probe(struct platform_device *pdev)
 					AT91_RTC_SECEV | AT91_RTC_TIMEV |
 					AT91_RTC_CALEV);
 
-	ret = request_irq(irq, at91_rtc_interrupt,
+	ret = devm_request_irq(&pdev->dev, irq, at91_rtc_interrupt,
 				IRQF_SHARED,
 				"at91_rtc", pdev);
 	if (ret) {
 		dev_err(&pdev->dev, "IRQ %d already in use.\n", irq);
-		goto err_unmap;
+		return ret;
 	}
 
 	/* cpu init code should really have flagged this device as
@@ -404,23 +405,14 @@ static int __init at91_rtc_probe(struct platform_device *pdev)
 	if (!device_can_wakeup(&pdev->dev))
 		device_init_wakeup(&pdev->dev, 1);
 
-	rtc = rtc_device_register(pdev->name, &pdev->dev,
+	rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
 				&at91_rtc_ops, THIS_MODULE);
-	if (IS_ERR(rtc)) {
-		ret = PTR_ERR(rtc);
-		goto err_free_irq;
-	}
+	if (IS_ERR(rtc))
+		return PTR_ERR(rtc);
 	platform_set_drvdata(pdev, rtc);
 
 	dev_info(&pdev->dev, "AT91 Real Time Clock driver.\n");
 	return 0;
-
-err_free_irq:
-	free_irq(irq, pdev);
-err_unmap:
-	iounmap(at91_rtc_regs);
-
-	return ret;
 }
 
 /*
@@ -428,16 +420,10 @@ err_unmap:
  */
 static int __exit at91_rtc_remove(struct platform_device *pdev)
 {
-	struct rtc_device *rtc = platform_get_drvdata(pdev);
-
 	/* Disable all interrupts */
 	at91_rtc_write_idr(AT91_RTC_ACKUPD | AT91_RTC_ALARM |
 					AT91_RTC_SECEV | AT91_RTC_TIMEV |
 					AT91_RTC_CALEV);
-	free_irq(irq, pdev);
-
-	rtc_device_unregister(rtc);
-	iounmap(at91_rtc_regs);
 
 	return 0;
 }
-- 
cgit 


From adce8c14c9eaf8e184d9410f4a0bdfa8be07ee6f Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 12 Nov 2013 15:10:30 -0800
Subject: drivers/rtc/rtc-isl1208.c: use devm_* APIs

devm_* APIs are device managed and make code simpler.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Herbert Valerio Riedel <hvr@gnu.org>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-isl1208.c | 36 +++++++++++-------------------------
 1 file changed, 11 insertions(+), 25 deletions(-)

diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c
index 5a0bf7ce1033..c3c549d511b9 100644
--- a/drivers/rtc/rtc-isl1208.c
+++ b/drivers/rtc/rtc-isl1208.c
@@ -643,10 +643,11 @@ isl1208_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		 "chip found, driver version " DRV_VERSION "\n");
 
 	if (client->irq > 0) {
-		rc = request_threaded_irq(client->irq, NULL,
-					  isl1208_rtc_interrupt,
-					  IRQF_SHARED,
-					  isl1208_driver.driver.name, client);
+		rc = devm_request_threaded_irq(&client->dev, client->irq, NULL,
+					       isl1208_rtc_interrupt,
+					       IRQF_SHARED,
+					       isl1208_driver.driver.name,
+					       client);
 		if (!rc) {
 			device_init_wakeup(&client->dev, 1);
 			enable_irq_wake(client->irq);
@@ -658,20 +659,18 @@ isl1208_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		}
 	}
 
-	rtc = rtc_device_register(isl1208_driver.driver.name,
-				  &client->dev, &isl1208_rtc_ops,
+	rtc = devm_rtc_device_register(&client->dev, isl1208_driver.driver.name,
+				  &isl1208_rtc_ops,
 				  THIS_MODULE);
-	if (IS_ERR(rtc)) {
-		rc = PTR_ERR(rtc);
-		goto exit_free_irq;
-	}
+	if (IS_ERR(rtc))
+		return PTR_ERR(rtc);
 
 	i2c_set_clientdata(client, rtc);
 
 	rc = isl1208_i2c_get_sr(client);
 	if (rc < 0) {
 		dev_err(&client->dev, "reading status failed\n");
-		goto exit_unregister;
+		return rc;
 	}
 
 	if (rc & ISL1208_REG_SR_RTCF)
@@ -680,28 +679,15 @@ isl1208_probe(struct i2c_client *client, const struct i2c_device_id *id)
 
 	rc = sysfs_create_group(&client->dev.kobj, &isl1208_rtc_sysfs_files);
 	if (rc)
-		goto exit_unregister;
+		return rc;
 
 	return 0;
-
-exit_unregister:
-	rtc_device_unregister(rtc);
-exit_free_irq:
-	if (client->irq)
-		free_irq(client->irq, client);
-
-	return rc;
 }
 
 static int
 isl1208_remove(struct i2c_client *client)
 {
-	struct rtc_device *rtc = i2c_get_clientdata(client);
-
 	sysfs_remove_group(&client->dev.kobj, &isl1208_rtc_sysfs_files);
-	rtc_device_unregister(rtc);
-	if (client->irq)
-		free_irq(client->irq, client);
 
 	return 0;
 }
-- 
cgit 


From 3d09162e9976d1ae79dd737849ca63ab6cff6df6 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 12 Nov 2013 15:10:31 -0800
Subject: drivers/rtc/rtc-sirfsoc.c: use devm_rtc_device_register

devm_rtc_device_register simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Xianglong Du <Xianglong.Du@csr.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-sirfsoc.c | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/drivers/rtc/rtc-sirfsoc.c b/drivers/rtc/rtc-sirfsoc.c
index 63460cf80f1b..17752655bff9 100644
--- a/drivers/rtc/rtc-sirfsoc.c
+++ b/drivers/rtc/rtc-sirfsoc.c
@@ -274,7 +274,7 @@ static int sirfsoc_rtc_probe(struct platform_device *pdev)
 	err = of_property_read_u32(np, "reg", &rtcdrv->rtc_base);
 	if (err) {
 		dev_err(&pdev->dev, "unable to find base address of rtc node in dtb\n");
-		goto error;
+		return err;
 	}
 
 	platform_set_drvdata(pdev, rtcdrv);
@@ -290,7 +290,7 @@ static int sirfsoc_rtc_probe(struct platform_device *pdev)
 	rtc_div = ((32768 / RTC_HZ) / 2) - 1;
 	sirfsoc_rtc_iobrg_writel(rtc_div, rtcdrv->rtc_base + RTC_DIV);
 
-	rtcdrv->rtc = rtc_device_register(pdev->name, &(pdev->dev),
+	rtcdrv->rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
 			&sirfsoc_rtc_ops, THIS_MODULE);
 	if (IS_ERR(rtcdrv->rtc)) {
 		err = PTR_ERR(rtcdrv->rtc);
@@ -322,24 +322,15 @@ static int sirfsoc_rtc_probe(struct platform_device *pdev)
 			rtcdrv);
 	if (err) {
 		dev_err(&pdev->dev, "Unable to register for the SiRF SOC RTC IRQ\n");
-		goto error;
+		return err;
 	}
 
 	return 0;
-
-error:
-	if (rtcdrv->rtc)
-		rtc_device_unregister(rtcdrv->rtc);
-
-	return err;
 }
 
 static int sirfsoc_rtc_remove(struct platform_device *pdev)
 {
-	struct sirfsoc_rtc_drv *rtcdrv = platform_get_drvdata(pdev);
-
 	device_init_wakeup(&pdev->dev, 0);
-	rtc_device_unregister(rtcdrv->rtc);
 
 	return 0;
 }
-- 
cgit 


From d7d954acb7eb204eeed10cd4494812e9f2e48bd8 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 12 Nov 2013 15:10:32 -0800
Subject: drivers/rtc/rtc-cmos.c: remove redundant dev_set_drvdata

Driver core sets the driver data to NULL upon device_release or on probe
failure.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-cmos.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 24e733c98f8b..79680b1d4d74 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -789,7 +789,6 @@ static void __exit cmos_do_remove(struct device *dev)
 	cmos->iomem = NULL;
 
 	cmos->dev = NULL;
-	dev_set_drvdata(dev, NULL);
 }
 
 #ifdef	CONFIG_PM
-- 
cgit 


From 8e3dd0d8e9217e5076538e7232e206e024a04b3c Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 12 Nov 2013 15:10:33 -0800
Subject: drivers/rtc/rtc-mrst.c: remove redundant dev_set_drvdata

Driver core sets the driver data to NULL upon device_release or on probe
failure.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-mrst.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c
index 315209d9b407..e2436d140175 100644
--- a/drivers/rtc/rtc-mrst.c
+++ b/drivers/rtc/rtc-mrst.c
@@ -380,7 +380,6 @@ static int vrtc_mrst_do_probe(struct device *dev, struct resource *iomem,
 cleanup1:
 	rtc_device_unregister(mrst_rtc.rtc);
 cleanup0:
-	dev_set_drvdata(dev, NULL);
 	mrst_rtc.dev = NULL;
 	release_mem_region(iomem->start, resource_size(iomem));
 	dev_err(dev, "rtc-mrst: unable to initialise\n");
@@ -412,7 +411,6 @@ static void rtc_mrst_do_remove(struct device *dev)
 	mrst->iomem = NULL;
 
 	mrst->dev = NULL;
-	dev_set_drvdata(dev, NULL);
 }
 
 #ifdef	CONFIG_PM
-- 
cgit 


From 4271e7ff1a9fc49efeff8496d1e21878e7de74eb Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 12 Nov 2013 15:10:34 -0800
Subject: drivers/rtc/rtc-vr41xx.c: fix checkpatch warnings

Fixes the following warnings:
  WARNING: Use #include <linux/io.h> instead of <asm/io.h>
  WARNING: Use #include <linux/uaccess.h> instead of <asm/uaccess.h>

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Yoichi Yuasa <yuasa@linux-mips.org>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-vr41xx.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/rtc/rtc-vr41xx.c b/drivers/rtc/rtc-vr41xx.c
index 54e104e197e3..aabc22c587fb 100644
--- a/drivers/rtc/rtc-vr41xx.c
+++ b/drivers/rtc/rtc-vr41xx.c
@@ -20,6 +20,7 @@
 #include <linux/err.h>
 #include <linux/fs.h>
 #include <linux/init.h>
+#include <linux/io.h>
 #include <linux/ioport.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
@@ -27,11 +28,10 @@
 #include <linux/rtc.h>
 #include <linux/spinlock.h>
 #include <linux/types.h>
+#include <linux/uaccess.h>
 #include <linux/log2.h>
 
 #include <asm/div64.h>
-#include <asm/io.h>
-#include <asm/uaccess.h>
 
 MODULE_AUTHOR("Yoichi Yuasa <yuasa@linux-mips.org>");
 MODULE_DESCRIPTION("NEC VR4100 series RTC driver");
-- 
cgit 


From b7efdf3b1be423d21fa3106aede5a8bcb9c4d152 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:10:35 -0800
Subject: drivers/rtc/rtc-sirfsoc.c: remove unneeded casts of void*

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-sirfsoc.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/rtc/rtc-sirfsoc.c b/drivers/rtc/rtc-sirfsoc.c
index 17752655bff9..de132b4acd66 100644
--- a/drivers/rtc/rtc-sirfsoc.c
+++ b/drivers/rtc/rtc-sirfsoc.c
@@ -59,7 +59,7 @@ static int sirfsoc_rtc_read_alarm(struct device *dev,
 	unsigned long rtc_alarm, rtc_count;
 	struct sirfsoc_rtc_drv *rtcdrv;
 
-	rtcdrv = (struct sirfsoc_rtc_drv *)dev_get_drvdata(dev);
+	rtcdrv = dev_get_drvdata(dev);
 
 	local_irq_disable();
 
@@ -94,7 +94,7 @@ static int sirfsoc_rtc_set_alarm(struct device *dev,
 {
 	unsigned long rtc_status_reg, rtc_alarm;
 	struct sirfsoc_rtc_drv *rtcdrv;
-	rtcdrv = (struct sirfsoc_rtc_drv *)dev_get_drvdata(dev);
+	rtcdrv = dev_get_drvdata(dev);
 
 	if (alrm->enabled) {
 		rtc_tm_to_time(&(alrm->time), &rtc_alarm);
@@ -157,7 +157,7 @@ static int sirfsoc_rtc_read_time(struct device *dev,
 {
 	unsigned long tmp_rtc = 0;
 	struct sirfsoc_rtc_drv *rtcdrv;
-	rtcdrv = (struct sirfsoc_rtc_drv *)dev_get_drvdata(dev);
+	rtcdrv = dev_get_drvdata(dev);
 	/*
 	 * This patch is taken from WinCE - Need to validate this for
 	 * correctness. To work around sirfsoc RTC counter double sync logic
@@ -178,7 +178,7 @@ static int sirfsoc_rtc_set_time(struct device *dev,
 {
 	unsigned long rtc_time;
 	struct sirfsoc_rtc_drv *rtcdrv;
-	rtcdrv = (struct sirfsoc_rtc_drv *)dev_get_drvdata(dev);
+	rtcdrv = dev_get_drvdata(dev);
 
 	rtc_tm_to_time(tm, &rtc_time);
 
@@ -364,7 +364,7 @@ static int sirfsoc_rtc_thaw(struct device *dev)
 {
 	u32 tmp;
 	struct sirfsoc_rtc_drv *rtcdrv;
-	rtcdrv = (struct sirfsoc_rtc_drv *)dev_get_drvdata(dev);
+	rtcdrv = dev_get_drvdata(dev);
 
 	/*
 	 * if resume from snapshot and the rtc power is losed,
-- 
cgit 


From b5ebf0780da1846d985998565a51935d10b807da Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:10:36 -0800
Subject: drivers/rtc/rtc-88pm80x.c: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.  This is a cosmetic change to make
the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-88pm80x.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/rtc/rtc-88pm80x.c b/drivers/rtc/rtc-88pm80x.c
index 354c937a5866..0916089c7c3e 100644
--- a/drivers/rtc/rtc-88pm80x.c
+++ b/drivers/rtc/rtc-88pm80x.c
@@ -251,14 +251,15 @@ static SIMPLE_DEV_PM_OPS(pm80x_rtc_pm_ops, pm80x_rtc_suspend, pm80x_rtc_resume);
 static int pm80x_rtc_probe(struct platform_device *pdev)
 {
 	struct pm80x_chip *chip = dev_get_drvdata(pdev->dev.parent);
-	struct pm80x_platform_data *pm80x_pdata;
+	struct pm80x_platform_data *pm80x_pdata =
+				dev_get_platdata(pdev->dev.parent);
 	struct pm80x_rtc_pdata *pdata = NULL;
 	struct pm80x_rtc_info *info;
 	struct rtc_time tm;
 	unsigned long ticks = 0;
 	int ret;
 
-	pdata = pdev->dev.platform_data;
+	pdata = dev_get_platdata(&pdev->dev);
 	if (pdata == NULL)
 		dev_warn(&pdev->dev, "No platform data!\n");
 
@@ -326,8 +327,7 @@ static int pm80x_rtc_probe(struct platform_device *pdev)
 	regmap_update_bits(info->map, PM800_RTC_CONTROL, PM800_RTC1_USE_XO,
 			   PM800_RTC1_USE_XO);
 
-	if (pdev->dev.parent->platform_data) {
-		pm80x_pdata = pdev->dev.parent->platform_data;
+	if (pm80x_pdata) {
 		pdata = pm80x_pdata->rtc;
 		if (pdata)
 			info->rtc_dev->dev.platform_data = &pdata->rtc_wakeup;
-- 
cgit 


From 82df0b28557a3e4cad4b8258b19bb61d097da9df Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:10:37 -0800
Subject: drivers/rtc/rtc-88pm860x.c: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.  This is a cosmetic change to make
the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-88pm860x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-88pm860x.c b/drivers/rtc/rtc-88pm860x.c
index 4e30c85728e5..816504846cdd 100644
--- a/drivers/rtc/rtc-88pm860x.c
+++ b/drivers/rtc/rtc-88pm860x.c
@@ -316,7 +316,7 @@ static int pm860x_rtc_probe(struct platform_device *pdev)
 	unsigned long ticks = 0;
 	int ret;
 
-	pdata = pdev->dev.platform_data;
+	pdata = dev_get_platdata(&pdev->dev);
 
 	info = devm_kzalloc(&pdev->dev, sizeof(struct pm860x_rtc_info),
 			    GFP_KERNEL);
-- 
cgit 


From 97a92e77ca5d3d899619282e3f4cbb94e3162251 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:10:38 -0800
Subject: drivers/rtc/rtc-cmos.c: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.  This is a cosmetic change to make
the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-cmos.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 79680b1d4d74..f14876256a4a 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -595,7 +595,7 @@ static irqreturn_t cmos_interrupt(int irq, void *p)
 static int INITSECTION
 cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
 {
-	struct cmos_rtc_board_info	*info = dev->platform_data;
+	struct cmos_rtc_board_info	*info = dev_get_platdata(dev);
 	int				retval = 0;
 	unsigned char			rtc_control;
 	unsigned			address_space;
-- 
cgit 


From d1fa24524899b342690f565a3dbf190fb65cc145 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:10:39 -0800
Subject: drivers/rtc/rtc-da9055.c: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.  This is a cosmetic change to make
the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-da9055.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-da9055.c b/drivers/rtc/rtc-da9055.c
index e00642b61076..48cb2ac3bd3e 100644
--- a/drivers/rtc/rtc-da9055.c
+++ b/drivers/rtc/rtc-da9055.c
@@ -278,7 +278,7 @@ static int da9055_rtc_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	rtc->da9055 = dev_get_drvdata(pdev->dev.parent);
-	pdata = rtc->da9055->dev->platform_data;
+	pdata = dev_get_platdata(rtc->da9055->dev);
 	platform_set_drvdata(pdev, rtc);
 
 	ret = da9055_rtc_device_init(rtc->da9055, pdata);
-- 
cgit 


From cfa13b249ed5f63db55df6ff123fc8856b48ff9f Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:10:40 -0800
Subject: drivers/rtc/rtc-ds1305.c: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.  This is a cosmetic change to make
the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-ds1305.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-ds1305.c b/drivers/rtc/rtc-ds1305.c
index dd6170acde95..80f323731ee2 100644
--- a/drivers/rtc/rtc-ds1305.c
+++ b/drivers/rtc/rtc-ds1305.c
@@ -606,7 +606,7 @@ static int ds1305_probe(struct spi_device *spi)
 	struct ds1305			*ds1305;
 	int				status;
 	u8				addr, value;
-	struct ds1305_platform_data	*pdata = spi->dev.platform_data;
+	struct ds1305_platform_data	*pdata = dev_get_platdata(&spi->dev);
 	bool				write_ctrl = false;
 
 	/* Sanity check board setup data.  This may be hooked up
-- 
cgit 


From 01ce893d37f053a9f76dd461adf4a4715ac388f1 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:10:41 -0800
Subject: drivers/rtc/rtc-ds1307.c: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.  This is a cosmetic change to make
the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-ds1307.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index e8ac439c43a5..bd9492019633 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -672,7 +672,7 @@ static int ds1307_probe(struct i2c_client *client,
 	struct i2c_adapter	*adapter = to_i2c_adapter(client->dev.parent);
 	int			want_irq = false;
 	unsigned char		*buf;
-	struct ds1307_platform_data *pdata = client->dev.platform_data;
+	struct ds1307_platform_data *pdata = dev_get_platdata(&client->dev);
 	static const int	bbsqi_bitpos[] = {
 		[ds_1337] = 0,
 		[ds_1339] = DS1339_BIT_BBSQI,
-- 
cgit 


From 77bf38223c0bf51bb303bc074881b403be3c09b4 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:10:42 -0800
Subject: drivers/rtc/rtc-ds2404.c: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.  This is a cosmetic change to make
the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-ds2404.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-ds2404.c b/drivers/rtc/rtc-ds2404.c
index 2ca5a23aba8a..fc209dc4e245 100644
--- a/drivers/rtc/rtc-ds2404.c
+++ b/drivers/rtc/rtc-ds2404.c
@@ -224,7 +224,7 @@ static const struct rtc_class_ops ds2404_rtc_ops = {
 
 static int rtc_probe(struct platform_device *pdev)
 {
-	struct ds2404_platform_data *pdata = pdev->dev.platform_data;
+	struct ds2404_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct ds2404 *chip;
 	int retval = -EBUSY;
 
-- 
cgit 


From 28dc5f803899c14f3096b36b643424717ba2b271 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:10:43 -0800
Subject: drivers/rtc/rtc-ep93xx.c: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.  This is a cosmetic change to make
the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-ep93xx.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/rtc/rtc-ep93xx.c b/drivers/rtc/rtc-ep93xx.c
index 580e7b56bde8..5e4f5dc40ba5 100644
--- a/drivers/rtc/rtc-ep93xx.c
+++ b/drivers/rtc/rtc-ep93xx.c
@@ -42,7 +42,7 @@ struct ep93xx_rtc {
 static int ep93xx_rtc_get_swcomp(struct device *dev, unsigned short *preload,
 				unsigned short *delete)
 {
-	struct ep93xx_rtc *ep93xx_rtc = dev->platform_data;
+	struct ep93xx_rtc *ep93xx_rtc = dev_get_platdata(dev);
 	unsigned long comp;
 
 	comp = __raw_readl(ep93xx_rtc->mmio_base + EP93XX_RTC_SWCOMP);
@@ -60,7 +60,7 @@ static int ep93xx_rtc_get_swcomp(struct device *dev, unsigned short *preload,
 
 static int ep93xx_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
-	struct ep93xx_rtc *ep93xx_rtc = dev->platform_data;
+	struct ep93xx_rtc *ep93xx_rtc = dev_get_platdata(dev);
 	unsigned long time;
 
 	 time = __raw_readl(ep93xx_rtc->mmio_base + EP93XX_RTC_DATA);
@@ -71,7 +71,7 @@ static int ep93xx_rtc_read_time(struct device *dev, struct rtc_time *tm)
 
 static int ep93xx_rtc_set_mmss(struct device *dev, unsigned long secs)
 {
-	struct ep93xx_rtc *ep93xx_rtc = dev->platform_data;
+	struct ep93xx_rtc *ep93xx_rtc = dev_get_platdata(dev);
 
 	__raw_writel(secs + 1, ep93xx_rtc->mmio_base + EP93XX_RTC_LOAD);
 	return 0;
-- 
cgit 


From 8136032ba50c9e1efdc93b047543fadfc691e884 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:10:44 -0800
Subject: drivers/rtc/rtc-m48t59.c: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.  This is a cosmetic change to make
the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-m48t59.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c
index fcb03291f145..11880c1e9dac 100644
--- a/drivers/rtc/rtc-m48t59.c
+++ b/drivers/rtc/rtc-m48t59.c
@@ -68,7 +68,7 @@ m48t59_mem_readb(struct device *dev, u32 ofs)
 static int m48t59_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
 	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t59_plat_data *pdata = pdev->dev.platform_data;
+	struct m48t59_plat_data *pdata = dev_get_platdata(&pdev->dev);
 	struct m48t59_private *m48t59 = platform_get_drvdata(pdev);
 	unsigned long flags;
 	u8 val;
@@ -111,7 +111,7 @@ static int m48t59_rtc_read_time(struct device *dev, struct rtc_time *tm)
 static int m48t59_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
 	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t59_plat_data *pdata = pdev->dev.platform_data;
+	struct m48t59_plat_data *pdata = dev_get_platdata(&pdev->dev);
 	struct m48t59_private *m48t59 = platform_get_drvdata(pdev);
 	unsigned long flags;
 	u8 val = 0;
@@ -158,7 +158,7 @@ static int m48t59_rtc_set_time(struct device *dev, struct rtc_time *tm)
 static int m48t59_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
 	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t59_plat_data *pdata = pdev->dev.platform_data;
+	struct m48t59_plat_data *pdata = dev_get_platdata(&pdev->dev);
 	struct m48t59_private *m48t59 = platform_get_drvdata(pdev);
 	struct rtc_time *tm = &alrm->time;
 	unsigned long flags;
@@ -205,7 +205,7 @@ static int m48t59_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm)
 static int m48t59_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
 	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t59_plat_data *pdata = pdev->dev.platform_data;
+	struct m48t59_plat_data *pdata = dev_get_platdata(&pdev->dev);
 	struct m48t59_private *m48t59 = platform_get_drvdata(pdev);
 	struct rtc_time *tm = &alrm->time;
 	u8 mday, hour, min, sec;
@@ -266,7 +266,7 @@ static int m48t59_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
 static int m48t59_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
 {
 	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t59_plat_data *pdata = pdev->dev.platform_data;
+	struct m48t59_plat_data *pdata = dev_get_platdata(&pdev->dev);
 	struct m48t59_private *m48t59 = platform_get_drvdata(pdev);
 	unsigned long flags;
 
@@ -283,7 +283,7 @@ static int m48t59_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
 static int m48t59_rtc_proc(struct device *dev, struct seq_file *seq)
 {
 	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t59_plat_data *pdata = pdev->dev.platform_data;
+	struct m48t59_plat_data *pdata = dev_get_platdata(&pdev->dev);
 	struct m48t59_private *m48t59 = platform_get_drvdata(pdev);
 	unsigned long flags;
 	u8 val;
@@ -304,7 +304,7 @@ static irqreturn_t m48t59_rtc_interrupt(int irq, void *dev_id)
 {
 	struct device *dev = (struct device *)dev_id;
 	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t59_plat_data *pdata = pdev->dev.platform_data;
+	struct m48t59_plat_data *pdata = dev_get_platdata(&pdev->dev);
 	struct m48t59_private *m48t59 = platform_get_drvdata(pdev);
 	u8 event;
 
@@ -340,7 +340,7 @@ static ssize_t m48t59_nvram_read(struct file *filp, struct kobject *kobj,
 {
 	struct device *dev = container_of(kobj, struct device, kobj);
 	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t59_plat_data *pdata = pdev->dev.platform_data;
+	struct m48t59_plat_data *pdata = dev_get_platdata(&pdev->dev);
 	struct m48t59_private *m48t59 = platform_get_drvdata(pdev);
 	ssize_t cnt = 0;
 	unsigned long flags;
@@ -360,7 +360,7 @@ static ssize_t m48t59_nvram_write(struct file *filp, struct kobject *kobj,
 {
 	struct device *dev = container_of(kobj, struct device, kobj);
 	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t59_plat_data *pdata = pdev->dev.platform_data;
+	struct m48t59_plat_data *pdata = dev_get_platdata(&pdev->dev);
 	struct m48t59_private *m48t59 = platform_get_drvdata(pdev);
 	ssize_t cnt = 0;
 	unsigned long flags;
@@ -385,7 +385,7 @@ static struct bin_attribute m48t59_nvram_attr = {
 
 static int m48t59_rtc_probe(struct platform_device *pdev)
 {
-	struct m48t59_plat_data *pdata = pdev->dev.platform_data;
+	struct m48t59_plat_data *pdata = dev_get_platdata(&pdev->dev);
 	struct m48t59_private *m48t59 = NULL;
 	struct resource *res;
 	int ret = -ENOMEM;
-- 
cgit 


From b5f0902dcdb5e6f8f1eb8dd083ae56dc8245ab53 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:10:44 -0800
Subject: drivers/rtc/rtc-m48t86.c: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.  This is a cosmetic change to make
the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-m48t86.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/rtc/rtc-m48t86.c b/drivers/rtc/rtc-m48t86.c
index 2d30314fa07f..32f64c942621 100644
--- a/drivers/rtc/rtc-m48t86.c
+++ b/drivers/rtc/rtc-m48t86.c
@@ -46,7 +46,7 @@ static int m48t86_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
 	unsigned char reg;
 	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t86_ops *ops = pdev->dev.platform_data;
+	struct m48t86_ops *ops = dev_get_platdata(&pdev->dev);
 
 	reg = ops->readbyte(M48T86_REG_B);
 
@@ -84,7 +84,7 @@ static int m48t86_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
 	unsigned char reg;
 	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t86_ops *ops = pdev->dev.platform_data;
+	struct m48t86_ops *ops = dev_get_platdata(&pdev->dev);
 
 	reg = ops->readbyte(M48T86_REG_B);
 
@@ -123,7 +123,7 @@ static int m48t86_rtc_proc(struct device *dev, struct seq_file *seq)
 {
 	unsigned char reg;
 	struct platform_device *pdev = to_platform_device(dev);
-	struct m48t86_ops *ops = pdev->dev.platform_data;
+	struct m48t86_ops *ops = dev_get_platdata(&pdev->dev);
 
 	reg = ops->readbyte(M48T86_REG_B);
 
@@ -147,7 +147,7 @@ static const struct rtc_class_ops m48t86_rtc_ops = {
 static int m48t86_rtc_probe(struct platform_device *dev)
 {
 	unsigned char reg;
-	struct m48t86_ops *ops = dev->dev.platform_data;
+	struct m48t86_ops *ops = dev_get_platdata(&dev->dev);
 	struct rtc_device *rtc;
 
 	rtc = devm_rtc_device_register(&dev->dev, "m48t86",
-- 
cgit 


From ffc75bb8f240b65ecd4e23d7f87863d9f7aeeeff Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:10:50 -0800
Subject: drivers/rtc/rtc-pcf2123.c: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.  This is a cosmetic change to make
the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-pcf2123.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-pcf2123.c b/drivers/rtc/rtc-pcf2123.c
index 1725b5090e33..d1953bb244c5 100644
--- a/drivers/rtc/rtc-pcf2123.c
+++ b/drivers/rtc/rtc-pcf2123.c
@@ -327,7 +327,7 @@ kfree_exit:
 
 static int pcf2123_remove(struct spi_device *spi)
 {
-	struct pcf2123_plat_data *pdata = spi->dev.platform_data;
+	struct pcf2123_plat_data *pdata = dev_get_platdata(&spi->dev);
 	int i;
 
 	if (pdata) {
-- 
cgit 


From f6405afe238f9f16362dd64a814b0381113da67e Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:10:51 -0800
Subject: drivers/rtc/rtc-rs5c348.c: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.  This is a cosmetic change to make
the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-rs5c348.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/rtc/rtc-rs5c348.c b/drivers/rtc/rtc-rs5c348.c
index f7a90a116a39..090a101c1c81 100644
--- a/drivers/rtc/rtc-rs5c348.c
+++ b/drivers/rtc/rtc-rs5c348.c
@@ -64,7 +64,7 @@ static int
 rs5c348_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
 	struct spi_device *spi = to_spi_device(dev);
-	struct rs5c348_plat_data *pdata = spi->dev.platform_data;
+	struct rs5c348_plat_data *pdata = dev_get_platdata(&spi->dev);
 	u8 txbuf[5+7], *txp;
 	int ret;
 
@@ -100,7 +100,7 @@ static int
 rs5c348_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
 	struct spi_device *spi = to_spi_device(dev);
-	struct rs5c348_plat_data *pdata = spi->dev.platform_data;
+	struct rs5c348_plat_data *pdata = dev_get_platdata(&spi->dev);
 	u8 txbuf[5], rxbuf[7];
 	int ret;
 
-- 
cgit 


From e58c18d434a44d0d4402ea08f08c6ed0f4c4ff72 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:10:52 -0800
Subject: drivers/rtc/rtc-sh.c: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.  This is a cosmetic change to make
the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-sh.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/rtc/rtc-sh.c b/drivers/rtc/rtc-sh.c
index 6d87e26355a3..d0d2b047658b 100644
--- a/drivers/rtc/rtc-sh.c
+++ b/drivers/rtc/rtc-sh.c
@@ -649,8 +649,9 @@ static int __init sh_rtc_probe(struct platform_device *pdev)
 	clk_enable(rtc->clk);
 
 	rtc->capabilities = RTC_DEF_CAPABILITIES;
-	if (pdev->dev.platform_data) {
-		struct sh_rtc_platform_info *pinfo = pdev->dev.platform_data;
+	if (dev_get_platdata(&pdev->dev)) {
+		struct sh_rtc_platform_info *pinfo =
+			dev_get_platdata(&pdev->dev);
 
 		/*
 		 * Some CPUs have special capabilities in addition to the
-- 
cgit 


From a65ddcebabe3e824ab63669e6e14a3352bae4948 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:10:53 -0800
Subject: drivers/rtc/rtc-v3020.c: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.  This is a cosmetic change to make
the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-v3020.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-v3020.c b/drivers/rtc/rtc-v3020.c
index d07d89823020..25222cdccdc6 100644
--- a/drivers/rtc/rtc-v3020.c
+++ b/drivers/rtc/rtc-v3020.c
@@ -303,7 +303,7 @@ static const struct rtc_class_ops v3020_rtc_ops = {
 
 static int rtc_probe(struct platform_device *pdev)
 {
-	struct v3020_platform_data *pdata = pdev->dev.platform_data;
+	struct v3020_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct v3020 *chip;
 	int retval = -EBUSY;
 	int i;
-- 
cgit 


From ce6bafdf94d827bea25bae59bb1abc23d52e5ff7 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 12 Nov 2013 15:10:54 -0800
Subject: drivers/rtc/rtc-vt8500.c: remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Tony Prisk <linux@prisktech.co.nz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-vt8500.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-vt8500.c b/drivers/rtc/rtc-vt8500.c
index 5be217df1d75..df2ef3eba7cd 100644
--- a/drivers/rtc/rtc-vt8500.c
+++ b/drivers/rtc/rtc-vt8500.c
@@ -296,7 +296,7 @@ static struct platform_driver vt8500_rtc_driver = {
 	.driver		= {
 		.name	= "vt8500-rtc",
 		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(wmt_dt_ids),
+		.of_match_table = wmt_dt_ids,
 	},
 };
 
-- 
cgit 


From 616b734130af858e9e9dce57c9f49ebc75b19869 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 12 Nov 2013 15:10:55 -0800
Subject: drivers/rtc/rtc-omap.c: remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-omap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c
index c7d97ee59327..26de5f8c2ae4 100644
--- a/drivers/rtc/rtc-omap.c
+++ b/drivers/rtc/rtc-omap.c
@@ -553,7 +553,7 @@ static struct platform_driver omap_rtc_driver = {
 		.name	= DRIVER_NAME,
 		.owner	= THIS_MODULE,
 		.pm	= &omap_rtc_pm_ops,
-		.of_match_table = of_match_ptr(omap_rtc_of_match),
+		.of_match_table = omap_rtc_of_match,
 	},
 	.id_table	= omap_rtc_devtype,
 };
-- 
cgit 


From d149632e037e1d84a058c1e70666d4ced10ae156 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 12 Nov 2013 15:10:56 -0800
Subject: drivers/rtc/rtc-sirfsoc.c: remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-sirfsoc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-sirfsoc.c b/drivers/rtc/rtc-sirfsoc.c
index de132b4acd66..3eb3642ae299 100644
--- a/drivers/rtc/rtc-sirfsoc.c
+++ b/drivers/rtc/rtc-sirfsoc.c
@@ -458,7 +458,7 @@ static struct platform_driver sirfsoc_rtc_driver = {
 #ifdef CONFIG_PM
 		.pm = &sirfsoc_rtc_pm_ops,
 #endif
-		.of_match_table = of_match_ptr(sirfsoc_rtc_of_match),
+		.of_match_table = sirfsoc_rtc_of_match,
 	},
 	.probe = sirfsoc_rtc_probe,
 	.remove = sirfsoc_rtc_remove,
-- 
cgit 


From c39b3717b869a0b74e1951416819cc2ec1da629c Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 12 Nov 2013 15:10:57 -0800
Subject: drivers/rtc/rtc-snvs.c: remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-snvs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-snvs.c b/drivers/rtc/rtc-snvs.c
index 316a342115b2..fa384fe28988 100644
--- a/drivers/rtc/rtc-snvs.c
+++ b/drivers/rtc/rtc-snvs.c
@@ -329,7 +329,7 @@ static struct platform_driver snvs_rtc_driver = {
 		.name	= "snvs_rtc",
 		.owner	= THIS_MODULE,
 		.pm	= &snvs_rtc_pm_ops,
-		.of_match_table = of_match_ptr(snvs_dt_ids),
+		.of_match_table = snvs_dt_ids,
 	},
 	.probe		= snvs_rtc_probe,
 };
-- 
cgit 


From 462a465be2c4cb376875fe8511e3c2c23aae2227 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 12 Nov 2013 15:10:58 -0800
Subject: drivers/rtc/rtc-stmp3xxx.c: remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.
Hence of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-stmp3xxx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-stmp3xxx.c b/drivers/rtc/rtc-stmp3xxx.c
index 26019531db15..ea96492357b0 100644
--- a/drivers/rtc/rtc-stmp3xxx.c
+++ b/drivers/rtc/rtc-stmp3xxx.c
@@ -343,7 +343,7 @@ static struct platform_driver stmp3xxx_rtcdrv = {
 		.name	= "stmp3xxx-rtc",
 		.owner	= THIS_MODULE,
 		.pm	= &stmp3xxx_rtc_pm_ops,
-		.of_match_table = of_match_ptr(rtc_dt_ids),
+		.of_match_table = rtc_dt_ids,
 	},
 };
 
-- 
cgit 


From c8b18da7769af46455180a61e7c292ec514e47e7 Mon Sep 17 00:00:00 2001
From: Peter Senna Tschudin <peter.senna@gmail.com>
Date: Tue, 12 Nov 2013 15:10:59 -0800
Subject: drivers/rtc/rtc-ds1307.c: change variable type to bool

The variable want_irq is only assigned the values true and false.
Change its type to bool.

The simplified semantic patch that find this problem is as
follows (http://coccinelle.lip6.fr/):

@exists@
type T;
identifier b;
@@
- T
+ bool
  b = ...;
  ... when any
  b = \(true\|false\)

Signed-off-by: Peter Senna Tschudin <peter.senna@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-ds1307.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index bd9492019633..4e75345a559a 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -670,7 +670,7 @@ static int ds1307_probe(struct i2c_client *client,
 	int			tmp;
 	const struct chip_desc	*chip = &chips[id->driver_data];
 	struct i2c_adapter	*adapter = to_i2c_adapter(client->dev.parent);
-	int			want_irq = false;
+	bool			want_irq = false;
 	unsigned char		*buf;
 	struct ds1307_platform_data *pdata = dev_get_platdata(&client->dev);
 	static const int	bbsqi_bitpos[] = {
-- 
cgit 


From a2726061920f43f594e03236d694c71f77adc6a2 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Tue, 12 Nov 2013 15:11:00 -0800
Subject: drivers/rtc/rtc-pl03x.c: remove unnecessary amba_set_drvdata()

Driver core clears the driver data to NULL after device_release or on
probe failure, so just remove it from here.

The relevant driver core change was commit 0998d0631001 ("device-core:
Ensure drvdata = NULL when no driver is bound").

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-pl030.c | 2 --
 drivers/rtc/rtc-pl031.c | 2 --
 2 files changed, 4 deletions(-)

diff --git a/drivers/rtc/rtc-pl030.c b/drivers/rtc/rtc-pl030.c
index 22bacdbf9139..a804f758ac6d 100644
--- a/drivers/rtc/rtc-pl030.c
+++ b/drivers/rtc/rtc-pl030.c
@@ -153,8 +153,6 @@ static int pl030_remove(struct amba_device *dev)
 {
 	struct pl030_rtc *rtc = amba_get_drvdata(dev);
 
-	amba_set_drvdata(dev, NULL);
-
 	writel(0, rtc->base + RTC_CR);
 
 	free_irq(dev->irq[0], rtc);
diff --git a/drivers/rtc/rtc-pl031.c b/drivers/rtc/rtc-pl031.c
index e3b25712b659..99181fff88fd 100644
--- a/drivers/rtc/rtc-pl031.c
+++ b/drivers/rtc/rtc-pl031.c
@@ -305,7 +305,6 @@ static int pl031_remove(struct amba_device *adev)
 {
 	struct pl031_local *ldata = dev_get_drvdata(&adev->dev);
 
-	amba_set_drvdata(adev, NULL);
 	free_irq(adev->irq[0], ldata);
 	rtc_device_unregister(ldata->rtc);
 	iounmap(ldata->base);
@@ -391,7 +390,6 @@ out_no_irq:
 	rtc_device_unregister(ldata->rtc);
 out_no_rtc:
 	iounmap(ldata->base);
-	amba_set_drvdata(adev, NULL);
 out_no_remap:
 	kfree(ldata);
 out:
-- 
cgit 


From 1fbc4c4d79e63709b919bc1a72e991c29ea13f4c Mon Sep 17 00:00:00 2001
From: Sangjung Woo <sangjung.woo@samsung.com>
Date: Tue, 12 Nov 2013 15:11:00 -0800
Subject: drivers/rtc/rtc-puv3.c: use dev_dbg() instead of pr_debug()

Because dev_*() are used along with pr_debug() function in this code, the
debug message is not tidy.  This patch converts from pr_debug() to
dev_dbg() since dev_*() are encouraged to use in device driver code.

Signed-off-by: Sangjung Woo <sangjung.woo@samsung.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-puv3.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/rtc/rtc-puv3.c b/drivers/rtc/rtc-puv3.c
index 402732cfb32a..1ecfe3bd92ac 100644
--- a/drivers/rtc/rtc-puv3.c
+++ b/drivers/rtc/rtc-puv3.c
@@ -53,11 +53,11 @@ static irqreturn_t puv3_rtc_tickirq(int irq, void *id)
 }
 
 /* Update control registers */
-static void puv3_rtc_setaie(int to)
+static void puv3_rtc_setaie(struct device *dev, int to)
 {
 	unsigned int tmp;
 
-	pr_debug("%s: aie=%d\n", __func__, to);
+	dev_dbg(dev, "%s: aie=%d\n", __func__, to);
 
 	tmp = readl(RTC_RTSR) & ~RTC_RTSR_ALE;
 
@@ -71,7 +71,7 @@ static int puv3_rtc_setpie(struct device *dev, int enabled)
 {
 	unsigned int tmp;
 
-	pr_debug("%s: pie=%d\n", __func__, enabled);
+	dev_debug(dev, "%s: pie=%d\n", __func__, enabled);
 
 	spin_lock_irq(&puv3_rtc_pie_lock);
 	tmp = readl(RTC_RTSR) & ~RTC_RTSR_HZE;
@@ -90,7 +90,7 @@ static int puv3_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm)
 {
 	rtc_time_to_tm(readl(RTC_RCNR), rtc_tm);
 
-	pr_debug("read time %02x.%02x.%02x %02x/%02x/%02x\n",
+	dev_dbg(dev, "read time %02x.%02x.%02x %02x/%02x/%02x\n",
 		 rtc_tm->tm_year, rtc_tm->tm_mon, rtc_tm->tm_mday,
 		 rtc_tm->tm_hour, rtc_tm->tm_min, rtc_tm->tm_sec);
 
@@ -101,7 +101,7 @@ static int puv3_rtc_settime(struct device *dev, struct rtc_time *tm)
 {
 	unsigned long rtc_count = 0;
 
-	pr_debug("set time %02d.%02d.%02d %02d/%02d/%02d\n",
+	dev_dbg(dev, "set time %02d.%02d.%02d %02d/%02d/%02d\n",
 		 tm->tm_year, tm->tm_mon, tm->tm_mday,
 		 tm->tm_hour, tm->tm_min, tm->tm_sec);
 
@@ -119,7 +119,7 @@ static int puv3_rtc_getalarm(struct device *dev, struct rtc_wkalrm *alrm)
 
 	alrm->enabled = readl(RTC_RTSR) & RTC_RTSR_ALE;
 
-	pr_debug("read alarm %02x %02x.%02x.%02x %02x/%02x/%02x\n",
+	dev_dbg(dev, "read alarm %02x %02x.%02x.%02x %02x/%02x/%02x\n",
 		 alrm->enabled,
 		 alm_tm->tm_year, alm_tm->tm_mon, alm_tm->tm_mday,
 		 alm_tm->tm_hour, alm_tm->tm_min, alm_tm->tm_sec);
@@ -132,7 +132,7 @@ static int puv3_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
 	struct rtc_time *tm = &alrm->time;
 	unsigned long rtcalarm_count = 0;
 
-	pr_debug("puv3_rtc_setalarm: %d, %02x/%02x/%02x %02x.%02x.%02x\n",
+	dev_dbg(dev, "puv3_rtc_setalarm: %d, %02x/%02x/%02x %02x.%02x.%02x\n",
 		 alrm->enabled,
 		 tm->tm_mday & 0xff, tm->tm_mon & 0xff, tm->tm_year & 0xff,
 		 tm->tm_hour & 0xff, tm->tm_min & 0xff, tm->tm_sec);
@@ -140,7 +140,7 @@ static int puv3_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
 	rtc_tm_to_time(tm, &rtcalarm_count);
 	writel(rtcalarm_count, RTC_RTAR);
 
-	puv3_rtc_setaie(alrm->enabled);
+	puv3_rtc_setaie(&dev->dev, alrm->enabled);
 
 	if (alrm->enabled)
 		enable_irq_wake(puv3_rtc_alarmno);
@@ -227,7 +227,7 @@ static int puv3_rtc_remove(struct platform_device *dev)
 	rtc_device_unregister(rtc);
 
 	puv3_rtc_setpie(&dev->dev, 0);
-	puv3_rtc_setaie(0);
+	puv3_rtc_setaie(&dev->dev, 0);
 
 	release_resource(puv3_rtc_mem);
 	kfree(puv3_rtc_mem);
@@ -241,7 +241,7 @@ static int puv3_rtc_probe(struct platform_device *pdev)
 	struct resource *res;
 	int ret;
 
-	pr_debug("%s: probe=%p\n", __func__, pdev);
+	dev_dbg(&pdev->dev, "%s: probe=%p\n", __func__, pdev);
 
 	/* find the IRQs */
 	puv3_rtc_tickno = platform_get_irq(pdev, 1);
@@ -256,7 +256,7 @@ static int puv3_rtc_probe(struct platform_device *pdev)
 		return -ENOENT;
 	}
 
-	pr_debug("PKUnity_rtc: tick irq %d, alarm irq %d\n",
+	dev_dbg(&pdev->dev, "PKUnity_rtc: tick irq %d, alarm irq %d\n",
 		 puv3_rtc_tickno, puv3_rtc_alarmno);
 
 	/* get the memory region */
-- 
cgit 


From 58c181c8255b8f23c5772b4c4d2328450a95081f Mon Sep 17 00:00:00 2001
From: Sangjung Woo <sangjung.woo@samsung.com>
Date: Tue, 12 Nov 2013 15:11:02 -0800
Subject: drivers/rtc/rtc-pl030.c: use devm_kzalloc() instead of kmalloc()

In order to be free automatically and make the cleanup paths more simple,
use devm_kzalloc() instead of kmalloc().

Signed-off-by: Sangjung Woo <sangjung.woo@samsung.com>
Cc: Joe Perches <joe@perches.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-pl030.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/rtc/rtc-pl030.c b/drivers/rtc/rtc-pl030.c
index a804f758ac6d..f85a1a93e669 100644
--- a/drivers/rtc/rtc-pl030.c
+++ b/drivers/rtc/rtc-pl030.c
@@ -106,7 +106,7 @@ static int pl030_probe(struct amba_device *dev, const struct amba_id *id)
 	if (ret)
 		goto err_req;
 
-	rtc = kmalloc(sizeof(*rtc), GFP_KERNEL);
+	rtc = devm_kzalloc(&dev->dev, sizeof(*rtc), GFP_KERNEL);
 	if (!rtc) {
 		ret = -ENOMEM;
 		goto err_rtc;
@@ -115,7 +115,7 @@ static int pl030_probe(struct amba_device *dev, const struct amba_id *id)
 	rtc->base = ioremap(dev->res.start, resource_size(&dev->res));
 	if (!rtc->base) {
 		ret = -ENOMEM;
-		goto err_map;
+		goto err_rtc;
 	}
 
 	__raw_writel(0, rtc->base + RTC_CR);
@@ -141,8 +141,6 @@ static int pl030_probe(struct amba_device *dev, const struct amba_id *id)
 	free_irq(dev->irq[0], rtc);
  err_irq:
 	iounmap(rtc->base);
- err_map:
-	kfree(rtc);
  err_rtc:
 	amba_release_regions(dev);
  err_req:
@@ -158,7 +156,6 @@ static int pl030_remove(struct amba_device *dev)
 	free_irq(dev->irq[0], rtc);
 	rtc_device_unregister(rtc->rtc);
 	iounmap(rtc->base);
-	kfree(rtc);
 	amba_release_regions(dev);
 
 	return 0;
-- 
cgit 


From 5e0d12142e1cf5dc7a8a276fc1fe60b8a5ecb1d3 Mon Sep 17 00:00:00 2001
From: Manish Badarkhe <badarkhe.manish@gmail.com>
Date: Tue, 12 Nov 2013 15:11:03 -0800
Subject: drivers/rtc/rtc-tps65910.c: remove unnecessary include

Currently, driver includes 'pm_runtime.h' which is not used anywhere in
code hence remove this unnecessory inclusion.

Signed-off-by: Manish Badarkhe <badarkhe.manish@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-tps65910.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/rtc/rtc-tps65910.c b/drivers/rtc/rtc-tps65910.c
index a9caf043b0ce..7af00208d637 100644
--- a/drivers/rtc/rtc-tps65910.c
+++ b/drivers/rtc/rtc-tps65910.c
@@ -22,7 +22,6 @@
 #include <linux/rtc.h>
 #include <linux/bcd.h>
 #include <linux/platform_device.h>
-#include <linux/pm_runtime.h>
 #include <linux/interrupt.h>
 #include <linux/mfd/tps65910.h>
 
-- 
cgit 


From 5bccae6ec4587044779f0b8e6fcb8f87db4181f0 Mon Sep 17 00:00:00 2001
From: Sangbeom Kim <sbkim73@samsung.com>
Date: Tue, 12 Nov 2013 15:11:04 -0800
Subject: rtc: s5m-rtc: add real-time clock driver for s5m8767

Add real-time clock driver for s5m8767.

Signed-off-by: Sangbeom Kim <sbkim73@samsung.com>
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Todd Broch <tbroch@chromium.org>
Cc: Mark Brown <broonie@kernel.org>
Acked-by: Lee Jones <lee.jones@linaro.org>	[mfd parts]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/Kconfig              |  10 +
 drivers/rtc/Makefile             |   1 +
 drivers/rtc/rtc-s5m.c            | 635 +++++++++++++++++++++++++++++++++++++++
 include/linux/mfd/samsung/core.h |   1 +
 include/linux/mfd/samsung/rtc.h  |  11 +
 5 files changed, 658 insertions(+)
 create mode 100644 drivers/rtc/rtc-s5m.c

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 9654aa3c05cb..4f48b9a26aa0 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -497,6 +497,16 @@ config RTC_DRV_RV3029C2
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-rv3029c2.
 
+config RTC_DRV_S5M
+	tristate "Samsung S5M series"
+	depends on MFD_SEC_CORE
+	help
+	  If you say yes here you will get support for the
+	  RTC of Samsung S5M PMIC series.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-s5m.
+
 endif # I2C
 
 comment "SPI RTC drivers"
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 2dff3d2009b5..9312e7965365 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -107,6 +107,7 @@ obj-$(CONFIG_RTC_DRV_RX8025)	+= rtc-rx8025.o
 obj-$(CONFIG_RTC_DRV_RX8581)	+= rtc-rx8581.o
 obj-$(CONFIG_RTC_DRV_S35390A)	+= rtc-s35390a.o
 obj-$(CONFIG_RTC_DRV_S3C)	+= rtc-s3c.o
+obj-$(CONFIG_RTC_DRV_S5M)	+= rtc-s5m.o
 obj-$(CONFIG_RTC_DRV_SA1100)	+= rtc-sa1100.o
 obj-$(CONFIG_RTC_DRV_SH)	+= rtc-sh.o
 obj-$(CONFIG_RTC_DRV_SNVS)	+= rtc-snvs.o
diff --git a/drivers/rtc/rtc-s5m.c b/drivers/rtc/rtc-s5m.c
new file mode 100644
index 000000000000..b7fd02bc0a14
--- /dev/null
+++ b/drivers/rtc/rtc-s5m.c
@@ -0,0 +1,635 @@
+/*
+ * Copyright (c) 2013 Samsung Electronics Co., Ltd
+ *	http://www.samsung.com
+ *
+ *  Copyright (C) 2013 Google, Inc
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ */
+
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/bcd.h>
+#include <linux/bitops.h>
+#include <linux/regmap.h>
+#include <linux/rtc.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/mfd/samsung/core.h>
+#include <linux/mfd/samsung/irq.h>
+#include <linux/mfd/samsung/rtc.h>
+
+struct s5m_rtc_info {
+	struct device *dev;
+	struct sec_pmic_dev *s5m87xx;
+	struct regmap *rtc;
+	struct rtc_device *rtc_dev;
+	int irq;
+	int device_type;
+	int rtc_24hr_mode;
+	bool wtsr_smpl;
+};
+
+static void s5m8767_data_to_tm(u8 *data, struct rtc_time *tm,
+			       int rtc_24hr_mode)
+{
+	tm->tm_sec = data[RTC_SEC] & 0x7f;
+	tm->tm_min = data[RTC_MIN] & 0x7f;
+	if (rtc_24hr_mode) {
+		tm->tm_hour = data[RTC_HOUR] & 0x1f;
+	} else {
+		tm->tm_hour = data[RTC_HOUR] & 0x0f;
+		if (data[RTC_HOUR] & HOUR_PM_MASK)
+			tm->tm_hour += 12;
+	}
+
+	tm->tm_wday = ffs(data[RTC_WEEKDAY] & 0x7f);
+	tm->tm_mday = data[RTC_DATE] & 0x1f;
+	tm->tm_mon = (data[RTC_MONTH] & 0x0f) - 1;
+	tm->tm_year = (data[RTC_YEAR1] & 0x7f) + 100;
+	tm->tm_yday = 0;
+	tm->tm_isdst = 0;
+}
+
+static int s5m8767_tm_to_data(struct rtc_time *tm, u8 *data)
+{
+	data[RTC_SEC] = tm->tm_sec;
+	data[RTC_MIN] = tm->tm_min;
+
+	if (tm->tm_hour >= 12)
+		data[RTC_HOUR] = tm->tm_hour | HOUR_PM_MASK;
+	else
+		data[RTC_HOUR] = tm->tm_hour & ~HOUR_PM_MASK;
+
+	data[RTC_WEEKDAY] = 1 << tm->tm_wday;
+	data[RTC_DATE] = tm->tm_mday;
+	data[RTC_MONTH] = tm->tm_mon + 1;
+	data[RTC_YEAR1] = tm->tm_year > 100 ? (tm->tm_year - 100) : 0;
+
+	if (tm->tm_year < 100) {
+		pr_err("s5m8767 RTC cannot handle the year %d.\n",
+		       1900 + tm->tm_year);
+		return -EINVAL;
+	} else {
+		return 0;
+	}
+}
+
+static inline int s5m8767_rtc_set_time_reg(struct s5m_rtc_info *info)
+{
+	int ret;
+	unsigned int data;
+
+	ret = regmap_read(info->rtc, SEC_RTC_UDR_CON, &data);
+	if (ret < 0) {
+		dev_err(info->dev, "failed to read update reg(%d)\n", ret);
+		return ret;
+	}
+
+	data |= RTC_TIME_EN_MASK;
+	data |= RTC_UDR_MASK;
+
+	ret = regmap_write(info->rtc, SEC_RTC_UDR_CON, data);
+	if (ret < 0) {
+		dev_err(info->dev, "failed to write update reg(%d)\n", ret);
+		return ret;
+	}
+
+	do {
+		ret = regmap_read(info->rtc, SEC_RTC_UDR_CON, &data);
+	} while ((data & RTC_UDR_MASK) && !ret);
+
+	return ret;
+}
+
+static inline int s5m8767_rtc_set_alarm_reg(struct s5m_rtc_info *info)
+{
+	int ret;
+	unsigned int data;
+
+	ret = regmap_read(info->rtc, SEC_RTC_UDR_CON, &data);
+	if (ret < 0) {
+		dev_err(info->dev, "%s: fail to read update reg(%d)\n",
+			__func__, ret);
+		return ret;
+	}
+
+	data &= ~RTC_TIME_EN_MASK;
+	data |= RTC_UDR_MASK;
+
+	ret = regmap_write(info->rtc, SEC_RTC_UDR_CON, data);
+	if (ret < 0) {
+		dev_err(info->dev, "%s: fail to write update reg(%d)\n",
+			__func__, ret);
+		return ret;
+	}
+
+	do {
+		ret = regmap_read(info->rtc, SEC_RTC_UDR_CON, &data);
+	} while ((data & RTC_UDR_MASK) && !ret);
+
+	return ret;
+}
+
+static void s5m8763_data_to_tm(u8 *data, struct rtc_time *tm)
+{
+	tm->tm_sec = bcd2bin(data[RTC_SEC]);
+	tm->tm_min = bcd2bin(data[RTC_MIN]);
+
+	if (data[RTC_HOUR] & HOUR_12) {
+		tm->tm_hour = bcd2bin(data[RTC_HOUR] & 0x1f);
+		if (data[RTC_HOUR] & HOUR_PM)
+			tm->tm_hour += 12;
+	} else {
+		tm->tm_hour = bcd2bin(data[RTC_HOUR] & 0x3f);
+	}
+
+	tm->tm_wday = data[RTC_WEEKDAY] & 0x07;
+	tm->tm_mday = bcd2bin(data[RTC_DATE]);
+	tm->tm_mon = bcd2bin(data[RTC_MONTH]);
+	tm->tm_year = bcd2bin(data[RTC_YEAR1]) + bcd2bin(data[RTC_YEAR2]) * 100;
+	tm->tm_year -= 1900;
+}
+
+static void s5m8763_tm_to_data(struct rtc_time *tm, u8 *data)
+{
+	data[RTC_SEC] = bin2bcd(tm->tm_sec);
+	data[RTC_MIN] = bin2bcd(tm->tm_min);
+	data[RTC_HOUR] = bin2bcd(tm->tm_hour);
+	data[RTC_WEEKDAY] = tm->tm_wday;
+	data[RTC_DATE] = bin2bcd(tm->tm_mday);
+	data[RTC_MONTH] = bin2bcd(tm->tm_mon);
+	data[RTC_YEAR1] = bin2bcd(tm->tm_year % 100);
+	data[RTC_YEAR2] = bin2bcd((tm->tm_year + 1900) / 100);
+}
+
+static int s5m_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+	struct s5m_rtc_info *info = dev_get_drvdata(dev);
+	u8 data[8];
+	int ret;
+
+	ret = regmap_bulk_read(info->rtc, SEC_RTC_SEC, data, 8);
+	if (ret < 0)
+		return ret;
+
+	switch (info->device_type) {
+	case S5M8763X:
+		s5m8763_data_to_tm(data, tm);
+		break;
+
+	case S5M8767X:
+		s5m8767_data_to_tm(data, tm, info->rtc_24hr_mode);
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	dev_dbg(dev, "%s: %d/%d/%d %d:%d:%d(%d)\n", __func__,
+		1900 + tm->tm_year, 1 + tm->tm_mon, tm->tm_mday,
+		tm->tm_hour, tm->tm_min, tm->tm_sec, tm->tm_wday);
+
+	return rtc_valid_tm(tm);
+}
+
+static int s5m_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+	struct s5m_rtc_info *info = dev_get_drvdata(dev);
+	u8 data[8];
+	int ret = 0;
+
+	switch (info->device_type) {
+	case S5M8763X:
+		s5m8763_tm_to_data(tm, data);
+		break;
+	case S5M8767X:
+		ret = s5m8767_tm_to_data(tm, data);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if (ret < 0)
+		return ret;
+
+	dev_dbg(dev, "%s: %d/%d/%d %d:%d:%d(%d)\n", __func__,
+		1900 + tm->tm_year, 1 + tm->tm_mon, tm->tm_mday,
+		tm->tm_hour, tm->tm_min, tm->tm_sec, tm->tm_wday);
+
+	ret = regmap_raw_write(info->rtc, SEC_RTC_SEC, data, 8);
+	if (ret < 0)
+		return ret;
+
+	ret = s5m8767_rtc_set_time_reg(info);
+
+	return ret;
+}
+
+static int s5m_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+	struct s5m_rtc_info *info = dev_get_drvdata(dev);
+	u8 data[8];
+	unsigned int val;
+	int ret, i;
+
+	ret = regmap_bulk_read(info->rtc, SEC_ALARM0_SEC, data, 8);
+	if (ret < 0)
+		return ret;
+
+	switch (info->device_type) {
+	case S5M8763X:
+		s5m8763_data_to_tm(data, &alrm->time);
+		ret = regmap_read(info->rtc, SEC_ALARM0_CONF, &val);
+		if (ret < 0)
+			return ret;
+
+		alrm->enabled = !!val;
+
+		ret = regmap_read(info->rtc, SEC_RTC_STATUS, &val);
+		if (ret < 0)
+			return ret;
+
+		break;
+
+	case S5M8767X:
+		s5m8767_data_to_tm(data, &alrm->time, info->rtc_24hr_mode);
+		dev_dbg(dev, "%s: %d/%d/%d %d:%d:%d(%d)\n", __func__,
+			1900 + alrm->time.tm_year, 1 + alrm->time.tm_mon,
+			alrm->time.tm_mday, alrm->time.tm_hour,
+			alrm->time.tm_min, alrm->time.tm_sec,
+			alrm->time.tm_wday);
+
+		alrm->enabled = 0;
+		for (i = 0; i < 7; i++) {
+			if (data[i] & ALARM_ENABLE_MASK) {
+				alrm->enabled = 1;
+				break;
+			}
+		}
+
+		alrm->pending = 0;
+		ret = regmap_read(info->rtc, SEC_RTC_STATUS, &val);
+		if (ret < 0)
+			return ret;
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	if (val & ALARM0_STATUS)
+		alrm->pending = 1;
+	else
+		alrm->pending = 0;
+
+	return 0;
+}
+
+static int s5m_rtc_stop_alarm(struct s5m_rtc_info *info)
+{
+	u8 data[8];
+	int ret, i;
+	struct rtc_time tm;
+
+	ret = regmap_bulk_read(info->rtc, SEC_ALARM0_SEC, data, 8);
+	if (ret < 0)
+		return ret;
+
+	s5m8767_data_to_tm(data, &tm, info->rtc_24hr_mode);
+	dev_dbg(info->dev, "%s: %d/%d/%d %d:%d:%d(%d)\n", __func__,
+		1900 + tm.tm_year, 1 + tm.tm_mon, tm.tm_mday,
+		tm.tm_hour, tm.tm_min, tm.tm_sec, tm.tm_wday);
+
+	switch (info->device_type) {
+	case S5M8763X:
+		ret = regmap_write(info->rtc, SEC_ALARM0_CONF, 0);
+		break;
+
+	case S5M8767X:
+		for (i = 0; i < 7; i++)
+			data[i] &= ~ALARM_ENABLE_MASK;
+
+		ret = regmap_raw_write(info->rtc, SEC_ALARM0_SEC, data, 8);
+		if (ret < 0)
+			return ret;
+
+		ret = s5m8767_rtc_set_alarm_reg(info);
+
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	return ret;
+}
+
+static int s5m_rtc_start_alarm(struct s5m_rtc_info *info)
+{
+	int ret;
+	u8 data[8];
+	u8 alarm0_conf;
+	struct rtc_time tm;
+
+	ret = regmap_bulk_read(info->rtc, SEC_ALARM0_SEC, data, 8);
+	if (ret < 0)
+		return ret;
+
+	s5m8767_data_to_tm(data, &tm, info->rtc_24hr_mode);
+	dev_dbg(info->dev, "%s: %d/%d/%d %d:%d:%d(%d)\n", __func__,
+		1900 + tm.tm_year, 1 + tm.tm_mon, tm.tm_mday,
+		tm.tm_hour, tm.tm_min, tm.tm_sec, tm.tm_wday);
+
+	switch (info->device_type) {
+	case S5M8763X:
+		alarm0_conf = 0x77;
+		ret = regmap_write(info->rtc, SEC_ALARM0_CONF, alarm0_conf);
+		break;
+
+	case S5M8767X:
+		data[RTC_SEC] |= ALARM_ENABLE_MASK;
+		data[RTC_MIN] |= ALARM_ENABLE_MASK;
+		data[RTC_HOUR] |= ALARM_ENABLE_MASK;
+		data[RTC_WEEKDAY] &= ~ALARM_ENABLE_MASK;
+		if (data[RTC_DATE] & 0x1f)
+			data[RTC_DATE] |= ALARM_ENABLE_MASK;
+		if (data[RTC_MONTH] & 0xf)
+			data[RTC_MONTH] |= ALARM_ENABLE_MASK;
+		if (data[RTC_YEAR1] & 0x7f)
+			data[RTC_YEAR1] |= ALARM_ENABLE_MASK;
+
+		ret = regmap_raw_write(info->rtc, SEC_ALARM0_SEC, data, 8);
+		if (ret < 0)
+			return ret;
+		ret = s5m8767_rtc_set_alarm_reg(info);
+
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	return ret;
+}
+
+static int s5m_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+	struct s5m_rtc_info *info = dev_get_drvdata(dev);
+	u8 data[8];
+	int ret;
+
+	switch (info->device_type) {
+	case S5M8763X:
+		s5m8763_tm_to_data(&alrm->time, data);
+		break;
+
+	case S5M8767X:
+		s5m8767_tm_to_data(&alrm->time, data);
+		break;
+
+	default:
+		return -EINVAL;
+	}
+
+	dev_dbg(dev, "%s: %d/%d/%d %d:%d:%d(%d)\n", __func__,
+		1900 + alrm->time.tm_year, 1 + alrm->time.tm_mon,
+		alrm->time.tm_mday, alrm->time.tm_hour, alrm->time.tm_min,
+		alrm->time.tm_sec, alrm->time.tm_wday);
+
+	ret = s5m_rtc_stop_alarm(info);
+	if (ret < 0)
+		return ret;
+
+	ret = regmap_raw_write(info->rtc, SEC_ALARM0_SEC, data, 8);
+	if (ret < 0)
+		return ret;
+
+	ret = s5m8767_rtc_set_alarm_reg(info);
+	if (ret < 0)
+		return ret;
+
+	if (alrm->enabled)
+		ret = s5m_rtc_start_alarm(info);
+
+	return ret;
+}
+
+static int s5m_rtc_alarm_irq_enable(struct device *dev,
+				    unsigned int enabled)
+{
+	struct s5m_rtc_info *info = dev_get_drvdata(dev);
+
+	if (enabled)
+		return s5m_rtc_start_alarm(info);
+	else
+		return s5m_rtc_stop_alarm(info);
+}
+
+static irqreturn_t s5m_rtc_alarm_irq(int irq, void *data)
+{
+	struct s5m_rtc_info *info = data;
+
+	rtc_update_irq(info->rtc_dev, 1, RTC_IRQF | RTC_AF);
+
+	return IRQ_HANDLED;
+}
+
+static const struct rtc_class_ops s5m_rtc_ops = {
+	.read_time = s5m_rtc_read_time,
+	.set_time = s5m_rtc_set_time,
+	.read_alarm = s5m_rtc_read_alarm,
+	.set_alarm = s5m_rtc_set_alarm,
+	.alarm_irq_enable = s5m_rtc_alarm_irq_enable,
+};
+
+static void s5m_rtc_enable_wtsr(struct s5m_rtc_info *info, bool enable)
+{
+	int ret;
+	ret = regmap_update_bits(info->rtc, SEC_WTSR_SMPL_CNTL,
+				 WTSR_ENABLE_MASK,
+				 enable ? WTSR_ENABLE_MASK : 0);
+	if (ret < 0)
+		dev_err(info->dev, "%s: fail to update WTSR reg(%d)\n",
+			__func__, ret);
+}
+
+static void s5m_rtc_enable_smpl(struct s5m_rtc_info *info, bool enable)
+{
+	int ret;
+	ret = regmap_update_bits(info->rtc, SEC_WTSR_SMPL_CNTL,
+				 SMPL_ENABLE_MASK,
+				 enable ? SMPL_ENABLE_MASK : 0);
+	if (ret < 0)
+		dev_err(info->dev, "%s: fail to update SMPL reg(%d)\n",
+			__func__, ret);
+}
+
+static int s5m8767_rtc_init_reg(struct s5m_rtc_info *info)
+{
+	u8 data[2];
+	unsigned int tp_read;
+	int ret;
+	struct rtc_time tm;
+
+	ret = regmap_read(info->rtc, SEC_RTC_UDR_CON, &tp_read);
+	if (ret < 0) {
+		dev_err(info->dev, "%s: fail to read control reg(%d)\n",
+			__func__, ret);
+		return ret;
+	}
+
+	/* Set RTC control register : Binary mode, 24hour mode */
+	data[0] = (1 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT);
+	data[1] = (0 << BCD_EN_SHIFT) | (1 << MODEL24_SHIFT);
+
+	info->rtc_24hr_mode = 1;
+	ret = regmap_raw_write(info->rtc, SEC_ALARM0_CONF, data, 2);
+	if (ret < 0) {
+		dev_err(info->dev, "%s: fail to write controlm reg(%d)\n",
+			__func__, ret);
+		return ret;
+	}
+
+	/* In first boot time, Set rtc time to 1/1/2012 00:00:00(SUN) */
+	if ((tp_read & RTC_TCON_MASK) == 0) {
+		dev_dbg(info->dev, "rtc init\n");
+		tm.tm_sec = 0;
+		tm.tm_min = 0;
+		tm.tm_hour = 0;
+		tm.tm_wday = 0;
+		tm.tm_mday = 1;
+		tm.tm_mon = 0;
+		tm.tm_year = 112;
+		tm.tm_yday = 0;
+		tm.tm_isdst = 0;
+		ret = s5m_rtc_set_time(info->dev, &tm);
+	}
+
+	ret = regmap_update_bits(info->rtc, SEC_RTC_UDR_CON,
+				 RTC_TCON_MASK, tp_read | RTC_TCON_MASK);
+	if (ret < 0)
+		dev_err(info->dev, "%s: fail to update TCON reg(%d)\n",
+			__func__, ret);
+
+	return ret;
+}
+
+static int s5m_rtc_probe(struct platform_device *pdev)
+{
+	struct sec_pmic_dev *s5m87xx = dev_get_drvdata(pdev->dev.parent);
+	struct sec_platform_data *pdata = s5m87xx->pdata;
+	struct s5m_rtc_info *info;
+	int ret;
+
+	if (!pdata) {
+		dev_err(pdev->dev.parent, "Platform data not supplied\n");
+		return -ENODEV;
+	}
+
+	info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return -ENOMEM;
+
+	info->dev = &pdev->dev;
+	info->s5m87xx = s5m87xx;
+	info->rtc = s5m87xx->rtc;
+	info->device_type = s5m87xx->device_type;
+	info->wtsr_smpl = s5m87xx->wtsr_smpl;
+
+	switch (pdata->device_type) {
+	case S5M8763X:
+		info->irq = s5m87xx->irq_base + S5M8763_IRQ_ALARM0;
+		break;
+
+	case S5M8767X:
+		info->irq = s5m87xx->irq_base + S5M8767_IRQ_RTCA1;
+		break;
+
+	default:
+		ret = -EINVAL;
+		dev_err(&pdev->dev, "Unsupported device type: %d\n", ret);
+		return ret;
+	}
+
+	platform_set_drvdata(pdev, info);
+
+	ret = s5m8767_rtc_init_reg(info);
+
+	if (info->wtsr_smpl) {
+		s5m_rtc_enable_wtsr(info, true);
+		s5m_rtc_enable_smpl(info, true);
+	}
+
+	device_init_wakeup(&pdev->dev, 1);
+
+	info->rtc_dev = devm_rtc_device_register(&pdev->dev, "s5m-rtc",
+						 &s5m_rtc_ops, THIS_MODULE);
+
+	if (IS_ERR(info->rtc_dev))
+		return PTR_ERR(info->rtc_dev);
+
+	ret = devm_request_threaded_irq(&pdev->dev, info->irq, NULL,
+					s5m_rtc_alarm_irq, 0, "rtc-alarm0",
+					info);
+	if (ret < 0)
+		dev_err(&pdev->dev, "Failed to request alarm IRQ: %d: %d\n",
+			info->irq, ret);
+
+	return ret;
+}
+
+static void s5m_rtc_shutdown(struct platform_device *pdev)
+{
+	struct s5m_rtc_info *info = platform_get_drvdata(pdev);
+	int i;
+	unsigned int val = 0;
+	if (info->wtsr_smpl) {
+		for (i = 0; i < 3; i++) {
+			s5m_rtc_enable_wtsr(info, false);
+			regmap_read(info->rtc, SEC_WTSR_SMPL_CNTL, &val);
+			pr_debug("%s: WTSR_SMPL reg(0x%02x)\n", __func__, val);
+			if (val & WTSR_ENABLE_MASK)
+				pr_emerg("%s: fail to disable WTSR\n",
+					 __func__);
+			else {
+				pr_info("%s: success to disable WTSR\n",
+					__func__);
+				break;
+			}
+		}
+	}
+	/* Disable SMPL when power off */
+	s5m_rtc_enable_smpl(info, false);
+}
+
+static const struct platform_device_id s5m_rtc_id[] = {
+	{ "s5m-rtc", 0 },
+};
+
+static struct platform_driver s5m_rtc_driver = {
+	.driver		= {
+		.name	= "s5m-rtc",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= s5m_rtc_probe,
+	.shutdown	= s5m_rtc_shutdown,
+	.id_table	= s5m_rtc_id,
+};
+
+module_platform_driver(s5m_rtc_driver);
+
+/* Module information */
+MODULE_AUTHOR("Sangbeom Kim <sbkim73@samsung.com>");
+MODULE_DESCRIPTION("Samsung S5M RTC driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:s5m-rtc");
diff --git a/include/linux/mfd/samsung/core.h b/include/linux/mfd/samsung/core.h
index 378ae8a04c6a..2d0c9071bcfb 100644
--- a/include/linux/mfd/samsung/core.h
+++ b/include/linux/mfd/samsung/core.h
@@ -51,6 +51,7 @@ struct sec_pmic_dev {
 	int ono;
 	int type;
 	bool wakeup;
+	bool wtsr_smpl;
 };
 
 int sec_irq_init(struct sec_pmic_dev *sec_pmic);
diff --git a/include/linux/mfd/samsung/rtc.h b/include/linux/mfd/samsung/rtc.h
index 71597e20cddb..94b7cd6d8891 100644
--- a/include/linux/mfd/samsung/rtc.h
+++ b/include/linux/mfd/samsung/rtc.h
@@ -62,6 +62,11 @@ enum sec_rtc_reg {
 /* RTC Update Register1 */
 #define RTC_UDR_SHIFT		0
 #define RTC_UDR_MASK		(1 << RTC_UDR_SHIFT)
+#define RTC_TCON_SHIFT		1
+#define RTC_TCON_MASK		(1 << RTC_TCON_SHIFT)
+#define RTC_TIME_EN_SHIFT	3
+#define RTC_TIME_EN_MASK	(1 << RTC_TIME_EN_SHIFT)
+
 /* RTC Hour register */
 #define HOUR_PM_SHIFT		6
 #define HOUR_PM_MASK		(1 << HOUR_PM_SHIFT)
@@ -69,6 +74,12 @@ enum sec_rtc_reg {
 #define ALARM_ENABLE_SHIFT	7
 #define ALARM_ENABLE_MASK	(1 << ALARM_ENABLE_SHIFT)
 
+#define SMPL_ENABLE_SHIFT	7
+#define SMPL_ENABLE_MASK	(1 << SMPL_ENABLE_SHIFT)
+
+#define WTSR_ENABLE_SHIFT	6
+#define WTSR_ENABLE_MASK	(1 << WTSR_ENABLE_SHIFT)
+
 enum {
 	RTC_SEC = 0,
 	RTC_MIN,
-- 
cgit 


From b45062619840a56c090bab57df7b0fb36a30c2af Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Tue, 12 Nov 2013 15:11:05 -0800
Subject: drivers/rtc/rtc-as3722: add RTC driver

The ams AS3722 is a compact system PMU suitable for mobile phones, tablets
etc.

Add a driver to support accessing the RTC found on the ams AS3722 PMIC
using RTC framework.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Florian Lobmaier <florian.lobmaier@ams.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/Kconfig      |  10 ++
 drivers/rtc/Makefile     |   1 +
 drivers/rtc/rtc-as3722.c | 275 +++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 286 insertions(+)
 create mode 100644 drivers/rtc/rtc-as3722.c

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 4f48b9a26aa0..15f166a470a7 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -153,6 +153,16 @@ config RTC_DRV_88PM80X
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-88pm80x.
 
+config RTC_DRV_AS3722
+	tristate "ams AS3722 RTC driver"
+	depends on MFD_AS3722
+	help
+	  If you say yes here you get support for the RTC of ams AS3722 PMIC
+	  chips.
+
+	  This driver can also be built as a module. If so, the module
+	  will be called rtc-as3722.
+
 config RTC_DRV_DS1307
 	tristate "Dallas/Maxim DS1307/37/38/39/40, ST M41T00, EPSON RX-8025"
 	help
diff --git a/drivers/rtc/Makefile b/drivers/rtc/Makefile
index 9312e7965365..27b4bd884066 100644
--- a/drivers/rtc/Makefile
+++ b/drivers/rtc/Makefile
@@ -20,6 +20,7 @@ obj-$(CONFIG_RTC_DRV_88PM860X)  += rtc-88pm860x.o
 obj-$(CONFIG_RTC_DRV_88PM80X)	+= rtc-88pm80x.o
 obj-$(CONFIG_RTC_DRV_AB3100)	+= rtc-ab3100.o
 obj-$(CONFIG_RTC_DRV_AB8500)	+= rtc-ab8500.o
+obj-$(CONFIG_RTC_DRV_AS3722)	+= rtc-as3722.o
 obj-$(CONFIG_RTC_DRV_AT32AP700X)+= rtc-at32ap700x.o
 obj-$(CONFIG_RTC_DRV_AT91RM9200)+= rtc-at91rm9200.o
 obj-$(CONFIG_RTC_DRV_AT91SAM9)	+= rtc-at91sam9.o
diff --git a/drivers/rtc/rtc-as3722.c b/drivers/rtc/rtc-as3722.c
new file mode 100644
index 000000000000..9cfa8170a2d6
--- /dev/null
+++ b/drivers/rtc/rtc-as3722.c
@@ -0,0 +1,275 @@
+/*
+ * rtc-as3722.c - Real Time Clock driver for ams AS3722 PMICs
+ *
+ * Copyright (C) 2013 ams AG
+ * Copyright (c) 2013, NVIDIA Corporation. All rights reserved.
+ *
+ * Author: Florian Lobmaier <florian.lobmaier@ams.com>
+ * Author: Laxman Dewangan <ldewangan@nvidia.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/bcd.h>
+#include <linux/completion.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/ioctl.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mfd/as3722.h>
+#include <linux/platform_device.h>
+#include <linux/rtc.h>
+#include <linux/time.h>
+
+#define AS3722_RTC_START_YEAR	  2000
+struct as3722_rtc {
+	struct rtc_device	*rtc;
+	struct device		*dev;
+	struct as3722		*as3722;
+	int			alarm_irq;
+	bool			irq_enable;
+};
+
+static void as3722_time_to_reg(u8 *rbuff, struct rtc_time *tm)
+{
+	rbuff[0] = bin2bcd(tm->tm_sec);
+	rbuff[1] = bin2bcd(tm->tm_min);
+	rbuff[2] = bin2bcd(tm->tm_hour);
+	rbuff[3] = bin2bcd(tm->tm_mday);
+	rbuff[4] = bin2bcd(tm->tm_mon);
+	rbuff[5] = bin2bcd(tm->tm_year - (AS3722_RTC_START_YEAR - 1900));
+}
+
+static void as3722_reg_to_time(u8 *rbuff, struct rtc_time *tm)
+{
+	tm->tm_sec = bcd2bin(rbuff[0] & 0x7F);
+	tm->tm_min = bcd2bin(rbuff[1] & 0x7F);
+	tm->tm_hour = bcd2bin(rbuff[2] & 0x3F);
+	tm->tm_mday = bcd2bin(rbuff[3] & 0x3F);
+	tm->tm_mon = bcd2bin(rbuff[4] & 0x1F);
+	tm->tm_year = (AS3722_RTC_START_YEAR - 1900) + bcd2bin(rbuff[5] & 0x7F);
+	return;
+}
+
+static int as3722_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+	struct as3722_rtc *as3722_rtc = dev_get_drvdata(dev);
+	struct as3722 *as3722 = as3722_rtc->as3722;
+	u8 as_time_array[6];
+	int ret;
+
+	ret = as3722_block_read(as3722, AS3722_RTC_SECOND_REG,
+			6, as_time_array);
+	if (ret < 0) {
+		dev_err(dev, "RTC_SECOND reg block read failed %d\n", ret);
+		return ret;
+	}
+	as3722_reg_to_time(as_time_array, tm);
+	return 0;
+}
+
+static int as3722_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+	struct as3722_rtc *as3722_rtc = dev_get_drvdata(dev);
+	struct as3722 *as3722 = as3722_rtc->as3722;
+	u8 as_time_array[6];
+	int ret;
+
+	if (tm->tm_year < (AS3722_RTC_START_YEAR - 1900))
+		return -EINVAL;
+
+	as3722_time_to_reg(as_time_array, tm);
+	ret = as3722_block_write(as3722, AS3722_RTC_SECOND_REG, 6,
+			as_time_array);
+	if (ret < 0)
+		dev_err(dev, "RTC_SECOND reg block write failed %d\n", ret);
+	return ret;
+}
+
+static int as3722_rtc_alarm_irq_enable(struct device *dev,
+		unsigned int enabled)
+{
+	struct as3722_rtc *as3722_rtc = dev_get_drvdata(dev);
+
+	if (enabled && !as3722_rtc->irq_enable) {
+		enable_irq(as3722_rtc->alarm_irq);
+		as3722_rtc->irq_enable = true;
+	} else if (!enabled && as3722_rtc->irq_enable)  {
+		disable_irq(as3722_rtc->alarm_irq);
+		as3722_rtc->irq_enable = false;
+	}
+	return 0;
+}
+
+static int as3722_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+	struct as3722_rtc *as3722_rtc = dev_get_drvdata(dev);
+	struct as3722 *as3722 = as3722_rtc->as3722;
+	u8 as_time_array[6];
+	int ret;
+
+	ret = as3722_block_read(as3722, AS3722_RTC_ALARM_SECOND_REG, 6,
+			as_time_array);
+	if (ret < 0) {
+		dev_err(dev, "RTC_ALARM_SECOND block read failed %d\n", ret);
+		return ret;
+	}
+
+	as3722_reg_to_time(as_time_array, &alrm->time);
+	return 0;
+}
+
+static int as3722_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
+{
+	struct as3722_rtc *as3722_rtc = dev_get_drvdata(dev);
+	struct as3722 *as3722 = as3722_rtc->as3722;
+	u8 as_time_array[6];
+	int ret;
+
+	if (alrm->time.tm_year < (AS3722_RTC_START_YEAR - 1900))
+		return -EINVAL;
+
+	ret = as3722_rtc_alarm_irq_enable(dev, 0);
+	if (ret < 0) {
+		dev_err(dev, "Disable RTC alarm failed\n");
+		return ret;
+	}
+
+	as3722_time_to_reg(as_time_array, &alrm->time);
+	ret = as3722_block_write(as3722, AS3722_RTC_ALARM_SECOND_REG, 6,
+			as_time_array);
+	if (ret < 0) {
+		dev_err(dev, "RTC_ALARM_SECOND block write failed %d\n", ret);
+		return ret;
+	}
+
+	if (alrm->enabled)
+		ret = as3722_rtc_alarm_irq_enable(dev, alrm->enabled);
+	return ret;
+}
+
+static irqreturn_t as3722_alarm_irq(int irq, void *data)
+{
+	struct as3722_rtc *as3722_rtc = data;
+
+	rtc_update_irq(as3722_rtc->rtc, 1, RTC_IRQF | RTC_AF);
+	return IRQ_HANDLED;
+}
+
+static const struct rtc_class_ops as3722_rtc_ops = {
+	.read_time = as3722_rtc_read_time,
+	.set_time = as3722_rtc_set_time,
+	.read_alarm = as3722_rtc_read_alarm,
+	.set_alarm = as3722_rtc_set_alarm,
+	.alarm_irq_enable = as3722_rtc_alarm_irq_enable,
+};
+
+static int as3722_rtc_probe(struct platform_device *pdev)
+{
+	struct as3722 *as3722 = dev_get_drvdata(pdev->dev.parent);
+	struct as3722_rtc *as3722_rtc;
+	int ret;
+
+	as3722_rtc = devm_kzalloc(&pdev->dev, sizeof(*as3722_rtc), GFP_KERNEL);
+	if (!as3722_rtc)
+		return -ENOMEM;
+
+	as3722_rtc->as3722 = as3722;
+	as3722_rtc->dev = &pdev->dev;
+	platform_set_drvdata(pdev, as3722_rtc);
+
+	/* Enable the RTC to make sure it is running. */
+	ret = as3722_update_bits(as3722, AS3722_RTC_CONTROL_REG,
+			AS3722_RTC_ON | AS3722_RTC_ALARM_WAKEUP_EN,
+			AS3722_RTC_ON | AS3722_RTC_ALARM_WAKEUP_EN);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "RTC_CONTROL reg write failed: %d\n", ret);
+		return ret;
+	}
+
+	device_init_wakeup(&pdev->dev, 1);
+
+	as3722_rtc->rtc = rtc_device_register("as3722", &pdev->dev,
+				&as3722_rtc_ops, THIS_MODULE);
+	if (IS_ERR(as3722_rtc->rtc)) {
+		ret = PTR_ERR(as3722_rtc->rtc);
+		dev_err(&pdev->dev, "RTC register failed: %d\n", ret);
+		return ret;
+	}
+
+	as3722_rtc->alarm_irq = platform_get_irq(pdev, 0);
+	dev_info(&pdev->dev, "RTC interrupt %d\n", as3722_rtc->alarm_irq);
+
+	ret = request_threaded_irq(as3722_rtc->alarm_irq, NULL,
+			as3722_alarm_irq, IRQF_ONESHOT | IRQF_EARLY_RESUME,
+			"rtc-alarm", as3722_rtc);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Failed to request alarm IRQ %d: %d\n",
+				as3722_rtc->alarm_irq, ret);
+		goto scrub;
+	}
+	disable_irq(as3722_rtc->alarm_irq);
+	return 0;
+scrub:
+	rtc_device_unregister(as3722_rtc->rtc);
+	return ret;
+}
+
+static int as3722_rtc_remove(struct platform_device *pdev)
+{
+	struct as3722_rtc *as3722_rtc = platform_get_drvdata(pdev);
+
+	free_irq(as3722_rtc->alarm_irq, as3722_rtc);
+	rtc_device_unregister(as3722_rtc->rtc);
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int as3722_rtc_suspend(struct device *dev)
+{
+	struct as3722_rtc *as3722_rtc = dev_get_drvdata(dev);
+
+	if (device_may_wakeup(dev))
+		enable_irq_wake(as3722_rtc->alarm_irq);
+
+	return 0;
+}
+
+static int as3722_rtc_resume(struct device *dev)
+{
+	struct as3722_rtc *as3722_rtc = dev_get_drvdata(dev);
+
+	if (device_may_wakeup(dev))
+		disable_irq_wake(as3722_rtc->alarm_irq);
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops as3722_rtc_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(as3722_rtc_suspend, as3722_rtc_resume)
+};
+
+static struct platform_driver as3722_rtc_driver = {
+	.probe = as3722_rtc_probe,
+	.remove = as3722_rtc_remove,
+	.driver = {
+		.name = "as3722-rtc",
+		.pm = &as3722_rtc_pm_ops,
+	},
+};
+module_platform_driver(as3722_rtc_driver);
+
+MODULE_DESCRIPTION("RTC driver for AS3722 PMICs");
+MODULE_ALIAS("platform:as3722-rtc");
+MODULE_AUTHOR("Florian Lobmaier <florian.lobmaier@ams.com>");
+MODULE_AUTHOR("Laxman Dewangan <ldewangan@nvidia.com>");
+MODULE_LICENSE("GPL");
-- 
cgit 


From 74a797d99a9fa4871ca978ac65e0f3a90dcf84d8 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Tue, 12 Nov 2013 15:11:06 -0800
Subject: fs/hfs/btree.h: remove duplicate defines

This patch removes duplicate defines from fs/hfs/btree.h

[akpm@linux-foundation.org: retain the comments]
Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Reviewed-by: Vyacheslav Dubeyko <slava@dubeyko.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/hfs/btree.h           | 5 -----
 fs/hfsplus/hfsplus_raw.h | 8 ++++----
 2 files changed, 4 insertions(+), 9 deletions(-)

diff --git a/fs/hfs/btree.h b/fs/hfs/btree.h
index 2a1d712f85dc..f6bd266d70b5 100644
--- a/fs/hfs/btree.h
+++ b/fs/hfs/btree.h
@@ -153,11 +153,6 @@ struct hfs_btree_header_rec {
 	u32 reserved3[16];
 } __packed;
 
-#define HFS_NODE_INDEX	0x00	/* An internal (index) node */
-#define HFS_NODE_HEADER	0x01	/* The tree header node (node 0) */
-#define HFS_NODE_MAP		0x02	/* Holds part of the bitmap of used nodes */
-#define HFS_NODE_LEAF		0xFF	/* A leaf (ndNHeight==1) node */
-
 #define BTREE_ATTR_BADCLOSE	0x00000001	/* b-tree not closed properly. not
 						   used by hfsplus. */
 #define HFS_TREE_BIGKEYS	0x00000002	/* key length is u16 instead of u8.
diff --git a/fs/hfsplus/hfsplus_raw.h b/fs/hfsplus/hfsplus_raw.h
index 452ede01b036..2c54dd81def4 100644
--- a/fs/hfsplus/hfsplus_raw.h
+++ b/fs/hfsplus/hfsplus_raw.h
@@ -156,10 +156,10 @@ struct hfs_bnode_desc {
 } __packed;
 
 /* HFS+ BTree node types */
-#define HFS_NODE_INDEX	0x00
-#define HFS_NODE_HEADER	0x01
-#define HFS_NODE_MAP	0x02
-#define HFS_NODE_LEAF	0xFF
+#define HFS_NODE_INDEX	0x00	/* An internal (index) node */
+#define HFS_NODE_HEADER	0x01	/* The tree header node (node 0) */
+#define HFS_NODE_MAP	0x02	/* Holds part of the bitmap of used nodes */
+#define HFS_NODE_LEAF	0xFF	/* A leaf (ndNHeight==1) node */
 
 /* HFS+ BTree header */
 struct hfs_btree_header_rec {
-- 
cgit 


From b3b5b0f03cc4ea074ed0ac110d0afd17e0ccdf9e Mon Sep 17 00:00:00 2001
From: Vyacheslav Dubeyko <slava@dubeyko.com>
Date: Tue, 12 Nov 2013 15:11:07 -0800
Subject: hfsplus: add metadata file's clump size calculation functionality

There are situation when HFS+ volume had been created without
AttributesFile.  Such situation can take place because of using old
mkfs.hfs utility or creation HFS+ volume without taking in mind
necessity to use xattrs.  For example, Mac OS X 10.4 (Tiger) doesn't
create AttributesFile during mkfs phase.  Also it is a very frequent
situation for the case of users that created HFS+ volumes under Linux.
As a result, xattrs and POSIX ACLs on HFS+ volume are unavailable for
such users.

This patchset implements functionality of AttributesFile creation on
HFS+ volume in the case of this metadata file absence during operation
of xattr creation.

This patch:

Add functionality of metadata file's clump size calculation.  Operation
of AttributesFile creation needs in clump size setting.  This value will
be used when AttributesFile will be extended.

This code is adopted from code of newfs_hfs utility of diskdev_cmds packet
http://opensource.apple.com/tarballs/diskdev_cmds/.

Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Hin-Tak Leung <htl10@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/hfsplus/btree.c      | 112 ++++++++++++++++++++++++++++++++++++++++++++++++
 fs/hfsplus/hfsplus_fs.h |   1 +
 2 files changed, 113 insertions(+)

diff --git a/fs/hfsplus/btree.c b/fs/hfsplus/btree.c
index 0c6540c91167..0fcec8b2a90b 100644
--- a/fs/hfsplus/btree.c
+++ b/fs/hfsplus/btree.c
@@ -15,6 +15,118 @@
 #include "hfsplus_fs.h"
 #include "hfsplus_raw.h"
 
+/*
+ * Initial source code of clump size calculation is gotten
+ * from http://opensource.apple.com/tarballs/diskdev_cmds/
+ */
+#define CLUMP_ENTRIES	15
+
+static short clumptbl[CLUMP_ENTRIES * 3] = {
+/*
+ *	    Volume	Attributes	 Catalog	 Extents
+ *	     Size	Clump (MB)	Clump (MB)	Clump (MB)
+ */
+	/*   1GB */	  4,		  4,		 4,
+	/*   2GB */	  6,		  6,		 4,
+	/*   4GB */	  8,		  8,		 4,
+	/*   8GB */	 11,		 11,		 5,
+	/*
+	 * For volumes 16GB and larger, we want to make sure that a full OS
+	 * install won't require fragmentation of the Catalog or Attributes
+	 * B-trees.  We do this by making the clump sizes sufficiently large,
+	 * and by leaving a gap after the B-trees for them to grow into.
+	 *
+	 * For SnowLeopard 10A298, a FullNetInstall with all packages selected
+	 * results in:
+	 * Catalog B-tree Header
+	 *	nodeSize:          8192
+	 *	totalNodes:       31616
+	 *	freeNodes:         1978
+	 * (used = 231.55 MB)
+	 * Attributes B-tree Header
+	 *	nodeSize:          8192
+	 *	totalNodes:       63232
+	 *	freeNodes:          958
+	 * (used = 486.52 MB)
+	 *
+	 * We also want Time Machine backup volumes to have a sufficiently
+	 * large clump size to reduce fragmentation.
+	 *
+	 * The series of numbers for Catalog and Attribute form a geometric
+	 * series. For Catalog (16GB to 512GB), each term is 8**(1/5) times
+	 * the previous term.  For Attributes (16GB to 512GB), each term is
+	 * 4**(1/5) times the previous term.  For 1TB to 16TB, each term is
+	 * 2**(1/5) times the previous term.
+	 */
+	/*  16GB */	 64,		 32,		 5,
+	/*  32GB */	 84,		 49,		 6,
+	/*  64GB */	111,		 74,		 7,
+	/* 128GB */	147,		111,		 8,
+	/* 256GB */	194,		169,		 9,
+	/* 512GB */	256,		256,		11,
+	/*   1TB */	294,		294,		14,
+	/*   2TB */	338,		338,		16,
+	/*   4TB */	388,		388,		20,
+	/*   8TB */	446,		446,		25,
+	/*  16TB */	512,		512,		32
+};
+
+u32 hfsplus_calc_btree_clump_size(u32 block_size, u32 node_size,
+					u64 sectors, int file_id)
+{
+	u32 mod = max(node_size, block_size);
+	u32 clump_size;
+	int column;
+	int i;
+
+	/* Figure out which column of the above table to use for this file. */
+	switch (file_id) {
+	case HFSPLUS_ATTR_CNID:
+		column = 0;
+		break;
+	case HFSPLUS_CAT_CNID:
+		column = 1;
+		break;
+	default:
+		column = 2;
+		break;
+	}
+
+	/*
+	 * The default clump size is 0.8% of the volume size. And
+	 * it must also be a multiple of the node and block size.
+	 */
+	if (sectors < 0x200000) {
+		clump_size = sectors << 2;	/*  0.8 %  */
+		if (clump_size < (8 * node_size))
+			clump_size = 8 * node_size;
+	} else {
+		/* turn exponent into table index... */
+		for (i = 0, sectors = sectors >> 22;
+		     sectors && (i < CLUMP_ENTRIES - 1);
+		     ++i, sectors = sectors >> 1) {
+			/* empty body */
+		}
+
+		clump_size = clumptbl[column + (i) * 3] * 1024 * 1024;
+	}
+
+	/*
+	 * Round the clump size to a multiple of node and block size.
+	 * NOTE: This rounds down.
+	 */
+	clump_size /= mod;
+	clump_size *= mod;
+
+	/*
+	 * Rounding down could have rounded down to 0 if the block size was
+	 * greater than the clump size.  If so, just use one block or node.
+	 */
+	if (clump_size == 0)
+		clump_size = mod;
+
+	return clump_size;
+}
 
 /* Get a reference to a B*Tree and do some initial checks */
 struct hfs_btree *hfs_btree_open(struct super_block *sb, u32 id)
diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index 2b9cd01696e2..1e36f18e904b 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -380,6 +380,7 @@ int hfsplus_block_allocate(struct super_block *, u32, u32, u32 *);
 int hfsplus_block_free(struct super_block *, u32, u32);
 
 /* btree.c */
+u32 hfsplus_calc_btree_clump_size(u32, u32, u64, int);
 struct hfs_btree *hfs_btree_open(struct super_block *, u32);
 void hfs_btree_close(struct hfs_btree *);
 int hfs_btree_write(struct hfs_btree *);
-- 
cgit 


From 099e9245e04d50bb12ed621b4fa61df0a4c9dba9 Mon Sep 17 00:00:00 2001
From: Vyacheslav Dubeyko <slava@dubeyko.com>
Date: Tue, 12 Nov 2013 15:11:08 -0800
Subject: hfsplus: implement attributes file's header node initialization code

Implement functionality of AttributesFile's header node initialization.

Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Hin-Tak Leung <htl10@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/hfsplus/hfsplus_raw.h |  3 +++
 fs/hfsplus/xattr.c       | 65 ++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 68 insertions(+)

diff --git a/fs/hfsplus/hfsplus_raw.h b/fs/hfsplus/hfsplus_raw.h
index 2c54dd81def4..8ffb3a8ffe75 100644
--- a/fs/hfsplus/hfsplus_raw.h
+++ b/fs/hfsplus/hfsplus_raw.h
@@ -187,6 +187,9 @@ struct hfs_btree_header_rec {
 /* HFS+ BTree misc info */
 #define HFSPLUS_TREE_HEAD 0
 #define HFSPLUS_NODE_MXSZ 32768
+#define HFSPLUS_ATTR_TREE_NODE_SIZE		8192
+#define HFSPLUS_BTREE_HDR_NODE_RECS_COUNT	3
+#define HFSPLUS_BTREE_HDR_USER_BYTES		128
 
 /* Some special File ID numbers (stolen from hfs.h) */
 #define HFSPLUS_POR_CNID		1	/* Parent Of the Root */
diff --git a/fs/hfsplus/xattr.c b/fs/hfsplus/xattr.c
index bd8471fb9a6a..568a45cb1145 100644
--- a/fs/hfsplus/xattr.c
+++ b/fs/hfsplus/xattr.c
@@ -127,6 +127,71 @@ static int can_set_xattr(struct inode *inode, const char *name,
 	return 0;
 }
 
+static void hfsplus_init_header_node(struct inode *attr_file,
+					u32 clump_size,
+					char *buf, size_t node_size)
+{
+	struct hfs_bnode_desc *desc;
+	struct hfs_btree_header_rec *head;
+	u16 offset;
+	__be16 *rec_offsets;
+	u32 hdr_node_map_rec_bits;
+	char *bmp;
+	u32 used_nodes;
+	u32 used_bmp_bytes;
+
+	hfs_dbg(ATTR_MOD, "init_hdr_attr_file: clump %u, node_size %zu\n",
+				clump_size, node_size);
+
+	/* The end of the node contains list of record offsets */
+	rec_offsets = (__be16 *)(buf + node_size);
+
+	desc = (struct hfs_bnode_desc *)buf;
+	desc->type = HFS_NODE_HEADER;
+	desc->num_recs = cpu_to_be16(HFSPLUS_BTREE_HDR_NODE_RECS_COUNT);
+	offset = sizeof(struct hfs_bnode_desc);
+	*--rec_offsets = cpu_to_be16(offset);
+
+	head = (struct hfs_btree_header_rec *)(buf + offset);
+	head->node_size = cpu_to_be16(node_size);
+	head->node_count = cpu_to_be32(i_size_read(attr_file) / node_size);
+	head->free_nodes = cpu_to_be32(be32_to_cpu(head->node_count) - 1);
+	head->clump_size = cpu_to_be32(clump_size);
+	head->attributes |= cpu_to_be32(HFS_TREE_BIGKEYS | HFS_TREE_VARIDXKEYS);
+	head->max_key_len = cpu_to_be16(HFSPLUS_ATTR_KEYLEN - sizeof(u16));
+	offset += sizeof(struct hfs_btree_header_rec);
+	*--rec_offsets = cpu_to_be16(offset);
+	offset += HFSPLUS_BTREE_HDR_USER_BYTES;
+	*--rec_offsets = cpu_to_be16(offset);
+
+	hdr_node_map_rec_bits = 8 * (node_size - offset - (4 * sizeof(u16)));
+	if (be32_to_cpu(head->node_count) > hdr_node_map_rec_bits) {
+		u32 map_node_bits;
+		u32 map_nodes;
+
+		desc->next = cpu_to_be32(be32_to_cpu(head->leaf_tail) + 1);
+		map_node_bits = 8 * (node_size - sizeof(struct hfs_bnode_desc) -
+					(2 * sizeof(u16)) - 2);
+		map_nodes = (be32_to_cpu(head->node_count) -
+				hdr_node_map_rec_bits +
+				(map_node_bits - 1)) / map_node_bits;
+		be32_add_cpu(&head->free_nodes, 0 - map_nodes);
+	}
+
+	bmp = buf + offset;
+	used_nodes =
+		be32_to_cpu(head->node_count) - be32_to_cpu(head->free_nodes);
+	used_bmp_bytes = used_nodes / 8;
+	if (used_bmp_bytes) {
+		memset(bmp, 0xFF, used_bmp_bytes);
+		bmp += used_bmp_bytes;
+		used_nodes %= 8;
+	}
+	*bmp = ~(0xFF >> used_nodes);
+	offset += hdr_node_map_rec_bits / 8;
+	*--rec_offsets = cpu_to_be16(offset);
+}
+
 int __hfsplus_setxattr(struct inode *inode, const char *name,
 			const void *value, size_t size, int flags)
 {
-- 
cgit 


From 95e0d7dbb9b28ab0dfad7c7316066b05e1f1d4cd Mon Sep 17 00:00:00 2001
From: Vyacheslav Dubeyko <slava@dubeyko.com>
Date: Tue, 12 Nov 2013 15:11:09 -0800
Subject: hfsplus: implement attributes file creation functionality

Implement functionality of creation AttributesFile metadata file on HFS+
volume in the case of absence of it.

It makes trying to open AttributesFile's B-tree during mount of HFS+
volume.  If HFS+ volume hasn't AttributesFile then a pointer on
AttributesFile's B-tree keeps as NULL.  Thereby, when it is discovered
absence of AttributesFile on HFS+ volume in the begin of xattr creation
operation then AttributesFile will be created.

The creation of AttributesFile will have success in the case of
availability (2 * clump) free blocks on HFS+ volume.  Otherwise,
creation operation is ended with error (-ENOSPC).

Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@infradead.org>
Acked-by: Hin-Tak Leung <htl10@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/hfsplus/hfsplus_fs.h |   9 +++
 fs/hfsplus/super.c      |   2 +
 fs/hfsplus/xattr.c      | 142 +++++++++++++++++++++++++++++++++++++++++++++++-
 3 files changed, 151 insertions(+), 2 deletions(-)

diff --git a/fs/hfsplus/hfsplus_fs.h b/fs/hfsplus/hfsplus_fs.h
index 1e36f18e904b..08846425b67f 100644
--- a/fs/hfsplus/hfsplus_fs.h
+++ b/fs/hfsplus/hfsplus_fs.h
@@ -126,6 +126,14 @@ struct hfs_bnode {
 #define HFS_BNODE_DIRTY		3
 #define HFS_BNODE_DELETED	4
 
+/*
+ * Attributes file states
+ */
+#define HFSPLUS_EMPTY_ATTR_TREE		0
+#define HFSPLUS_CREATING_ATTR_TREE	1
+#define HFSPLUS_VALID_ATTR_TREE		2
+#define HFSPLUS_FAILED_ATTR_TREE	3
+
 /*
  * HFS+ superblock info (built from Volume Header on disk)
  */
@@ -141,6 +149,7 @@ struct hfsplus_sb_info {
 	struct hfs_btree *ext_tree;
 	struct hfs_btree *cat_tree;
 	struct hfs_btree *attr_tree;
+	atomic_t attr_tree_state;
 	struct inode *alloc_file;
 	struct inode *hidden_dir;
 	struct nls_table *nls;
diff --git a/fs/hfsplus/super.c b/fs/hfsplus/super.c
index 4c4d142cf890..80875aa640ef 100644
--- a/fs/hfsplus/super.c
+++ b/fs/hfsplus/super.c
@@ -474,12 +474,14 @@ static int hfsplus_fill_super(struct super_block *sb, void *data, int silent)
 		pr_err("failed to load catalog file\n");
 		goto out_close_ext_tree;
 	}
+	atomic_set(&sbi->attr_tree_state, HFSPLUS_EMPTY_ATTR_TREE);
 	if (vhdr->attr_file.total_blocks != 0) {
 		sbi->attr_tree = hfs_btree_open(sb, HFSPLUS_ATTR_CNID);
 		if (!sbi->attr_tree) {
 			pr_err("failed to load attributes file\n");
 			goto out_close_cat_tree;
 		}
+		atomic_set(&sbi->attr_tree_state, HFSPLUS_VALID_ATTR_TREE);
 	}
 	sb->s_xattr = hfsplus_xattr_handlers;
 
diff --git a/fs/hfsplus/xattr.c b/fs/hfsplus/xattr.c
index 568a45cb1145..efc85b1377cc 100644
--- a/fs/hfsplus/xattr.c
+++ b/fs/hfsplus/xattr.c
@@ -192,6 +192,143 @@ static void hfsplus_init_header_node(struct inode *attr_file,
 	*--rec_offsets = cpu_to_be16(offset);
 }
 
+static int hfsplus_create_attributes_file(struct super_block *sb)
+{
+	int err = 0;
+	struct hfsplus_sb_info *sbi = HFSPLUS_SB(sb);
+	struct inode *attr_file;
+	struct hfsplus_inode_info *hip;
+	u32 clump_size;
+	u16 node_size = HFSPLUS_ATTR_TREE_NODE_SIZE;
+	char *buf;
+	int index, written;
+	struct address_space *mapping;
+	struct page *page;
+	int old_state = HFSPLUS_EMPTY_ATTR_TREE;
+
+	hfs_dbg(ATTR_MOD, "create_attr_file: ino %d\n", HFSPLUS_ATTR_CNID);
+
+check_attr_tree_state_again:
+	switch (atomic_read(&sbi->attr_tree_state)) {
+	case HFSPLUS_EMPTY_ATTR_TREE:
+		if (old_state != atomic_cmpxchg(&sbi->attr_tree_state,
+						old_state,
+						HFSPLUS_CREATING_ATTR_TREE))
+			goto check_attr_tree_state_again;
+		break;
+	case HFSPLUS_CREATING_ATTR_TREE:
+		/*
+		 * This state means that another thread is in process
+		 * of AttributesFile creation. Theoretically, it is
+		 * possible to be here. But really __setxattr() method
+		 * first of all calls hfs_find_init() for lookup in
+		 * B-tree of CatalogFile. This method locks mutex of
+		 * CatalogFile's B-tree. As a result, if some thread
+		 * is inside AttributedFile creation operation then
+		 * another threads will be waiting unlocking of
+		 * CatalogFile's B-tree's mutex. However, if code will
+		 * change then we will return error code (-EAGAIN) from
+		 * here. Really, it means that first try to set of xattr
+		 * fails with error but second attempt will have success.
+		 */
+		return -EAGAIN;
+	case HFSPLUS_VALID_ATTR_TREE:
+		return 0;
+	case HFSPLUS_FAILED_ATTR_TREE:
+		return -EOPNOTSUPP;
+	default:
+		BUG();
+	}
+
+	attr_file = hfsplus_iget(sb, HFSPLUS_ATTR_CNID);
+	if (IS_ERR(attr_file)) {
+		pr_err("failed to load attributes file\n");
+		return PTR_ERR(attr_file);
+	}
+
+	BUG_ON(i_size_read(attr_file) != 0);
+
+	hip = HFSPLUS_I(attr_file);
+
+	clump_size = hfsplus_calc_btree_clump_size(sb->s_blocksize,
+						    node_size,
+						    sbi->sect_count,
+						    HFSPLUS_ATTR_CNID);
+
+	mutex_lock(&hip->extents_lock);
+	hip->clump_blocks = clump_size >> sbi->alloc_blksz_shift;
+	mutex_unlock(&hip->extents_lock);
+
+	if (sbi->free_blocks <= (hip->clump_blocks << 1)) {
+		err = -ENOSPC;
+		goto end_attr_file_creation;
+	}
+
+	while (hip->alloc_blocks < hip->clump_blocks) {
+		err = hfsplus_file_extend(attr_file);
+		if (unlikely(err)) {
+			pr_err("failed to extend attributes file\n");
+			goto end_attr_file_creation;
+		}
+		hip->phys_size = attr_file->i_size =
+			(loff_t)hip->alloc_blocks << sbi->alloc_blksz_shift;
+		hip->fs_blocks = hip->alloc_blocks << sbi->fs_shift;
+		inode_set_bytes(attr_file, attr_file->i_size);
+	}
+
+	buf = kzalloc(node_size, GFP_NOFS);
+	if (!buf) {
+		pr_err("failed to allocate memory for header node\n");
+		err = -ENOMEM;
+		goto end_attr_file_creation;
+	}
+
+	hfsplus_init_header_node(attr_file, clump_size, buf, node_size);
+
+	mapping = attr_file->i_mapping;
+
+	index = 0;
+	written = 0;
+	for (; written < node_size; index++, written += PAGE_CACHE_SIZE) {
+		void *kaddr;
+
+		page = read_mapping_page(mapping, index, NULL);
+		if (IS_ERR(page)) {
+			err = PTR_ERR(page);
+			goto failed_header_node_init;
+		}
+
+		kaddr = kmap_atomic(page);
+		memcpy(kaddr, buf + written,
+			min_t(size_t, PAGE_CACHE_SIZE, node_size - written));
+		kunmap_atomic(kaddr);
+
+		set_page_dirty(page);
+		page_cache_release(page);
+	}
+
+	hfsplus_mark_inode_dirty(attr_file, HFSPLUS_I_ATTR_DIRTY);
+
+	sbi->attr_tree = hfs_btree_open(sb, HFSPLUS_ATTR_CNID);
+	if (!sbi->attr_tree)
+		pr_err("failed to load attributes file\n");
+
+failed_header_node_init:
+	kfree(buf);
+
+end_attr_file_creation:
+	iput(attr_file);
+
+	if (!err)
+		atomic_set(&sbi->attr_tree_state, HFSPLUS_VALID_ATTR_TREE);
+	else if (err == -ENOSPC)
+		atomic_set(&sbi->attr_tree_state, HFSPLUS_EMPTY_ATTR_TREE);
+	else
+		atomic_set(&sbi->attr_tree_state, HFSPLUS_FAILED_ATTR_TREE);
+
+	return err;
+}
+
 int __hfsplus_setxattr(struct inode *inode, const char *name,
 			const void *value, size_t size, int flags)
 {
@@ -276,8 +413,9 @@ int __hfsplus_setxattr(struct inode *inode, const char *name,
 	}
 
 	if (!HFSPLUS_SB(inode->i_sb)->attr_tree) {
-		err = -EOPNOTSUPP;
-		goto end_setxattr;
+		err = hfsplus_create_attributes_file(inode->i_sb);
+		if (unlikely(err))
+			goto end_setxattr;
 	}
 
 	if (hfsplus_attr_exists(inode, name)) {
-- 
cgit 


From 965fd2968a5daf66c21a21a539528f6d3ec7c53b Mon Sep 17 00:00:00 2001
From: Luis Ortega Perez de Villar <luiorpe1@upv.es>
Date: Tue, 12 Nov 2013 15:11:10 -0800
Subject: Documentation/filesystems/vfat.txt: fix directory entry example

Slots can store up to 13 characters for the file name but one of the
examples has one character too many.

Signed-off-by: Luis Ortega Perez de Villar <luiorpe1@upv.es>
Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Documentation/filesystems/vfat.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/filesystems/vfat.txt b/Documentation/filesystems/vfat.txt
index aa1f459fa6cf..4a93e98b290a 100644
--- a/Documentation/filesystems/vfat.txt
+++ b/Documentation/filesystems/vfat.txt
@@ -307,7 +307,7 @@ the following:
 
                 <proceeding files...>
                 <slot #3, id = 0x43, characters = "h is long">
-                <slot #2, id = 0x02, characters = "xtension which">
+                <slot #2, id = 0x02, characters = "xtension whic">
                 <slot #1, id = 0x01, characters = "My Big File.E">
                 <directory entry, name = "MYBIGFIL.EXT">
 
-- 
cgit 


From c7708649ccbdc21e85c95ca1a01b28342d939d39 Mon Sep 17 00:00:00 2001
From: Stefan Raspl <raspl@linux.vnet.ibm.com>
Date: Tue, 12 Nov 2013 15:11:11 -0800
Subject: Documentation/trace/tracepoints.txt: add links to TRACE_EVENT
 documentation

Existing tracepoint documentation doesn't mention the popular
TRACE_EVENT macro.  Since an excellent series of articles on proper
usage already exists, respective links are added to the existing
documentation.

Signed-off-by: Stefan Raspl <raspl@linux.vnet.ibm.com>
Cc: Rob Landley <rob@landley.net>
Cc: Jiri Kosina <jkosina@suse.cz>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Zoltan Kiss <zoltan.kiss@citrix.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Documentation/trace/tracepoints.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Documentation/trace/tracepoints.txt b/Documentation/trace/tracepoints.txt
index ac4170dd0f24..6b018b53177a 100644
--- a/Documentation/trace/tracepoints.txt
+++ b/Documentation/trace/tracepoints.txt
@@ -114,3 +114,8 @@ core kernel image or in modules.
 If the tracepoint has to be used in kernel modules, an
 EXPORT_TRACEPOINT_SYMBOL_GPL() or EXPORT_TRACEPOINT_SYMBOL() can be
 used to export the defined tracepoints.
+
+Note: The convenience macro TRACE_EVENT provides an alternative way to
+      define tracepoints. Check http://lwn.net/Articles/379903,
+      http://lwn.net/Articles/381064 and http://lwn.net/Articles/383362
+      for a series of articles with more details.
-- 
cgit 


From e946c43a116526e3d947dc03aeb165c1effd9f8f Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 12 Nov 2013 15:11:12 -0800
Subject: kernel-doc: improve "no structured comments found" error

When using '!Ffile function' in a docbook template, and the function no
longer exists, you get a "no structured comments found" error from the
kernel-doc processing script.  It's useful to know which functions it was
looking for, so print them out in this case.  Also do the same for '!Pfile
doc-section'

The same error also happens when using '!Efile' when some exported
functions aren't documented (in the same file.) There's a very large
number of such functions though, so don't print the message in this case
-- right now it would give ~850 messages.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Cc: Rob Landley <rob@landley.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/docproc.c  | 14 +++++++++-----
 scripts/kernel-doc |  6 ++++++
 2 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/scripts/docproc.c b/scripts/docproc.c
index 4cfdc1797eb8..2b69eaf5b646 100644
--- a/scripts/docproc.c
+++ b/scripts/docproc.c
@@ -72,6 +72,7 @@ FILELINE * docsection;
 #define FUNCTION      "-function"
 #define NOFUNCTION    "-nofunction"
 #define NODOCSECTIONS "-no-doc-sections"
+#define SHOWNOTFOUND  "-show-not-found"
 
 static char *srctree, *kernsrctree;
 
@@ -294,6 +295,7 @@ static void singfunc(char * filename, char * line)
         int startofsym = 1;
 	vec[idx++] = KERNELDOC;
 	vec[idx++] = DOCBOOK;
+	vec[idx++] = SHOWNOTFOUND;
 
         /* Split line up in individual parameters preceded by FUNCTION */
         for (i=0; line[i]; i++) {
@@ -325,7 +327,8 @@ static void singfunc(char * filename, char * line)
  */
 static void docsect(char *filename, char *line)
 {
-	char *vec[6]; /* kerneldoc -docbook -function "section" file NULL */
+	/* kerneldoc -docbook -show-not-found -function "section" file NULL */
+	char *vec[7];
 	char *s;
 
 	for (s = line; *s; s++)
@@ -341,10 +344,11 @@ static void docsect(char *filename, char *line)
 
 	vec[0] = KERNELDOC;
 	vec[1] = DOCBOOK;
-	vec[2] = FUNCTION;
-	vec[3] = line;
-	vec[4] = filename;
-	vec[5] = NULL;
+	vec[2] = SHOWNOTFOUND;
+	vec[3] = FUNCTION;
+	vec[4] = line;
+	vec[5] = filename;
+	vec[6] = NULL;
 	exec_kernel_doc(vec);
 }
 
diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 4305b2f2ec5e..dbd3e1ebbdad 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -257,6 +257,7 @@ my $man_date = ('January', 'February', 'March', 'April', 'May', 'June',
 		'July', 'August', 'September', 'October',
 		'November', 'December')[(localtime)[4]] .
   " " . ((localtime)[5]+1900);
+my $show_not_found = 0;
 
 # Essentially these are globals.
 # They probably want to be tidied up, made more localised or something.
@@ -369,6 +370,8 @@ while ($ARGV[0] =~ m/^-(.*)/) {
 	usage();
     } elsif ($cmd eq '-no-doc-sections') {
 	    $no_doc_sections = 1;
+    } elsif ($cmd eq '-show-not-found') {
+	$show_not_found = 1;
     }
 }
 
@@ -2536,6 +2539,9 @@ sub process_file($) {
     }
     if ($initial_section_counter == $section_counter) {
 	print STDERR "Warning(${file}): no structured comments found\n";
+	if (($function_only == 1) && ($show_not_found == 1)) {
+	    print STDERR "    Was looking for '$_'.\n" for keys %function_table;
+	}
 	if ($output_mode eq "xml") {
 	    # The template wants at least one RefEntry here; make one.
 	    print "<refentry>\n";
-- 
cgit 


From ee2f51dc018e4dee06c6a6d52e821e27d701d650 Mon Sep 17 00:00:00 2001
From: Josh Triplett <josh@joshtriplett.org>
Date: Tue, 12 Nov 2013 15:11:14 -0800
Subject: Documentation/ABI: document the non-ABI status of Kconfig and symbols

Discussion at Kernel Summit made it clear that the presence or absence of
specific Kconfig symbols are not considered ABI, and that no userspace (or
bootloader, etc) should rely on them.

In addition, kernel-internal symbols are well established as non-ABI, per
Documentation/stable_api_nonsense.txt.

Document both of these in Documentation/ABI/README, in a new section for
notable bits of non-ABI.

Signed-off-by: Josh Triplett <josh@joshtriplett.org>
Cc: Rob Landley <rob@landley.net>
Cc: Tao Ma <boyu.mt@taobao.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Cc: Richard Weinberger <richard.weinberger@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Documentation/ABI/README | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Documentation/ABI/README b/Documentation/ABI/README
index 10069828568b..1fafc4b0753b 100644
--- a/Documentation/ABI/README
+++ b/Documentation/ABI/README
@@ -72,3 +72,16 @@ kernel tree without going through the obsolete state first.
 
 It's up to the developer to place their interfaces in the category they
 wish for it to start out in.
+
+
+Notable bits of non-ABI, which should not under any circumstances be considered
+stable:
+
+- Kconfig.  Userspace should not rely on the presence or absence of any
+  particular Kconfig symbol, in /proc/config.gz, in the copy of .config
+  commonly installed to /boot, or in any invocation of the kernel build
+  process.
+
+- Kernel-internal symbols.  Do not rely on the presence, absence, location, or
+  type of any kernel symbol, either in System.map files or the kernel binary
+  itself.  See Documentation/stable_api_nonsense.txt.
-- 
cgit 


From 5721cf84d9d8d41915f77dd639969b7fa91b6a79 Mon Sep 17 00:00:00 2001
From: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
Date: Tue, 12 Nov 2013 15:11:15 -0800
Subject: procfs: clean up proc_reg_get_unmapped_area for 80-column limit

Clean up proc_reg_get_unmapped_area due to its 80-column limit
violation.

Signed-off-by: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
Tested-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/proc/inode.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 8eaa1ba793fc..28955d4b7218 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -285,19 +285,23 @@ static int proc_reg_mmap(struct file *file, struct vm_area_struct *vma)
 	return rv;
 }
 
-static unsigned long proc_reg_get_unmapped_area(struct file *file, unsigned long orig_addr, unsigned long len, unsigned long pgoff, unsigned long flags)
+static unsigned long
+proc_reg_get_unmapped_area(struct file *file, unsigned long orig_addr,
+			   unsigned long len, unsigned long pgoff,
+			   unsigned long flags)
 {
 	struct proc_dir_entry *pde = PDE(file_inode(file));
 	unsigned long rv = -EIO;
-	unsigned long (*get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, unsigned long) = NULL;
+	unsigned long (*get_area)(struct file *, unsigned long, unsigned long,
+				  unsigned long, unsigned long) = NULL;
 	if (use_pde(pde)) {
 #ifdef CONFIG_MMU
-		get_unmapped_area = current->mm->get_unmapped_area;
+		get_area = current->mm->get_unmapped_area;
 #endif
 		if (pde->proc_fops->get_unmapped_area)
-			get_unmapped_area = pde->proc_fops->get_unmapped_area;
-		if (get_unmapped_area)
-			rv = get_unmapped_area(file, orig_addr, len, pgoff, flags);
+			get_area = pde->proc_fops->get_unmapped_area;
+		if (get_area)
+			rv = get_area(file, orig_addr, len, pgoff, flags);
 		unuse_pde(pde);
 	}
 	return rv;
-- 
cgit 


From 1c3fc3e5cc8a81d21b199cb739d5d9c51f3688f4 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Tue, 12 Nov 2013 15:11:16 -0800
Subject: kcore: add Kconfig help text

Under Pseudo filesystems, /proc/kcore support has no help.

Fixes a portion of kernel bugzilla #52671:
  https://bugzilla.kernel.org/show_bug.cgi?id=52671

Thanks for David Howells for the help text.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: <lailavrazda1979@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/proc/Kconfig | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/proc/Kconfig b/fs/proc/Kconfig
index 15af6222f8a4..2183fcf41d59 100644
--- a/fs/proc/Kconfig
+++ b/fs/proc/Kconfig
@@ -31,6 +31,10 @@ config PROC_FS
 config PROC_KCORE
 	bool "/proc/kcore support" if !ARM
 	depends on PROC_FS && MMU
+	help
+	  Provides a virtual ELF core file of the live kernel.  This can
+	  be read with gdb and other ELF tools.  No modifications can be
+	  made using this mechanism.
 
 config PROC_VMCORE
 	bool "/proc/vmcore support"
-- 
cgit 


From d049f74f2dbe71354d43d393ac3a188947811348 Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Tue, 12 Nov 2013 15:11:17 -0800
Subject: exec/ptrace: fix get_dumpable() incorrect tests

The get_dumpable() return value is not boolean.  Most users of the
function actually want to be testing for non-SUID_DUMP_USER(1) rather than
SUID_DUMP_DISABLE(0).  The SUID_DUMP_ROOT(2) is also considered a
protected state.  Almost all places did this correctly, excepting the two
places fixed in this patch.

Wrong logic:
    if (dumpable == SUID_DUMP_DISABLE) { /* be protective */ }
        or
    if (dumpable == 0) { /* be protective */ }
        or
    if (!dumpable) { /* be protective */ }

Correct logic:
    if (dumpable != SUID_DUMP_USER) { /* be protective */ }
        or
    if (dumpable != 1) { /* be protective */ }

Without this patch, if the system had set the sysctl fs/suid_dumpable=2, a
user was able to ptrace attach to processes that had dropped privileges to
that user.  (This may have been partially mitigated if Yama was enabled.)

The macros have been moved into the file that declares get/set_dumpable(),
which means things like the ia64 code can see them too.

CVE-2013-2929

Reported-by: Vasily Kulikov <segoon@openwall.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/ia64/include/asm/processor.h | 2 +-
 fs/exec.c                         | 6 ++++++
 include/linux/binfmts.h           | 3 ---
 include/linux/sched.h             | 4 ++++
 kernel/ptrace.c                   | 3 ++-
 5 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/arch/ia64/include/asm/processor.h b/arch/ia64/include/asm/processor.h
index e0a899a1a8a6..5a84b3a50741 100644
--- a/arch/ia64/include/asm/processor.h
+++ b/arch/ia64/include/asm/processor.h
@@ -319,7 +319,7 @@ struct thread_struct {
 	regs->loadrs = 0;									\
 	regs->r8 = get_dumpable(current->mm);	/* set "don't zap registers" flag */		\
 	regs->r12 = new_sp - 16;	/* allocate 16 byte scratch area */			\
-	if (unlikely(!get_dumpable(current->mm))) {							\
+	if (unlikely(get_dumpable(current->mm) != SUID_DUMP_USER)) {	\
 		/*										\
 		 * Zap scratch regs to avoid leaking bits between processes with different	\
 		 * uid/privileges.								\
diff --git a/fs/exec.c b/fs/exec.c
index 2ea437e5acf4..12120620f040 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -1669,6 +1669,12 @@ int __get_dumpable(unsigned long mm_flags)
 	return (ret > SUID_DUMP_USER) ? SUID_DUMP_ROOT : ret;
 }
 
+/*
+ * This returns the actual value of the suid_dumpable flag. For things
+ * that are using this for checking for privilege transitions, it must
+ * test against SUID_DUMP_USER rather than treating it as a boolean
+ * value.
+ */
 int get_dumpable(struct mm_struct *mm)
 {
 	return __get_dumpable(mm->flags);
diff --git a/include/linux/binfmts.h b/include/linux/binfmts.h
index e8112ae50531..7554fd410bcc 100644
--- a/include/linux/binfmts.h
+++ b/include/linux/binfmts.h
@@ -99,9 +99,6 @@ extern void setup_new_exec(struct linux_binprm * bprm);
 extern void would_dump(struct linux_binprm *, struct file *);
 
 extern int suid_dumpable;
-#define SUID_DUMP_DISABLE	0	/* No setuid dumping */
-#define SUID_DUMP_USER		1	/* Dump as user of process */
-#define SUID_DUMP_ROOT		2	/* Dump as root */
 
 /* Stack area protections */
 #define EXSTACK_DEFAULT   0	/* Whatever the arch defaults to */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5e226fe3e512..f7efc8604652 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -323,6 +323,10 @@ static inline void arch_pick_mmap_layout(struct mm_struct *mm) {}
 extern void set_dumpable(struct mm_struct *mm, int value);
 extern int get_dumpable(struct mm_struct *mm);
 
+#define SUID_DUMP_DISABLE	0	/* No setuid dumping */
+#define SUID_DUMP_USER		1	/* Dump as user of process */
+#define SUID_DUMP_ROOT		2	/* Dump as root */
+
 /* mm flags */
 /* dumpable bits */
 #define MMF_DUMPABLE      0  /* core dump is permitted */
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index dd562e9aa2c8..1f4bcb3cc21c 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -257,7 +257,8 @@ ok:
 	if (task->mm)
 		dumpable = get_dumpable(task->mm);
 	rcu_read_lock();
-	if (!dumpable && !ptrace_has_cap(__task_cred(task)->user_ns, mode)) {
+	if (dumpable != SUID_DUMP_USER &&
+	    !ptrace_has_cap(__task_cred(task)->user_ns, mode)) {
 		rcu_read_unlock();
 		return -EPERM;
 	}
-- 
cgit 


From 1310a5a99d900ee30b9f171146406bde0c6c2bd4 Mon Sep 17 00:00:00 2001
From: Jan Kara <jack@suse.cz>
Date: Tue, 12 Nov 2013 15:11:19 -0800
Subject: rbtree: fix rbtree_postorder_for_each_entry_safe() iterator

The iterator rbtree_postorder_for_each_entry_safe() relies on pointer
underflow behavior when testing for loop termination.  In particular it
expects that

  &rb_entry(NULL, type, field)->field

is NULL.  But the result of this expression is not defined by a C standard
and some gcc versions (e.g.  4.3.4) assume the above expression can never
be equal to NULL.  The net result is an oops because the iteration is not
properly terminated.

Fix the problem by modifying the iterator to avoid pointer underflows.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Cody P Schafer <cody@linux.vnet.ibm.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Artem Bityutskiy <dedekind1@gmail.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: <stable@vger.kernel.org>		[3.12.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/rbtree.h | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/include/linux/rbtree.h b/include/linux/rbtree.h
index aa870a4ddf54..57e75ae9910f 100644
--- a/include/linux/rbtree.h
+++ b/include/linux/rbtree.h
@@ -85,6 +85,11 @@ static inline void rb_link_node(struct rb_node * node, struct rb_node * parent,
 	*rb_link = node;
 }
 
+#define rb_entry_safe(ptr, type, member) \
+	({ typeof(ptr) ____ptr = (ptr); \
+	   ____ptr ? rb_entry(____ptr, type, member) : NULL; \
+	})
+
 /**
  * rbtree_postorder_for_each_entry_safe - iterate over rb_root in post order of
  * given type safe against removal of rb_node entry
@@ -95,12 +100,9 @@ static inline void rb_link_node(struct rb_node * node, struct rb_node * parent,
  * @field:	the name of the rb_node field within 'type'.
  */
 #define rbtree_postorder_for_each_entry_safe(pos, n, root, field) \
-	for (pos = rb_entry(rb_first_postorder(root), typeof(*pos), field),\
-		n = rb_entry(rb_next_postorder(&pos->field), \
-			typeof(*pos), field); \
-	     &pos->field; \
-	     pos = n, \
-		n = rb_entry(rb_next_postorder(&pos->field), \
-			typeof(*pos), field))
+	for (pos = rb_entry_safe(rb_first_postorder(root), typeof(*pos), field); \
+	     pos && ({ n = rb_entry_safe(rb_next_postorder(&pos->field), \
+			typeof(*pos), field); 1; }); \
+	     pos = n)
 
 #endif	/* _LINUX_RBTREE_H */
-- 
cgit 


From 7833819d2e5b2a0189f6e9d445ba03f4d7ba2656 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Tue, 12 Nov 2013 15:11:21 -0800
Subject: kernel/sysctl.c: check return value after call proc_put_char() in
 __do_proc_doulongvec_minmax()

Need to check the return value of proc_put_char(), as was done in
__do_proc_doulongvec_minmax().

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/sysctl.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 36547dddcdb8..d37d9dd8f463 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -2222,8 +2222,11 @@ static int __do_proc_doulongvec_minmax(void *data, struct ctl_table *table, int
 			*i = val;
 		} else {
 			val = convdiv * (*i) / convmul;
-			if (!first)
+			if (!first) {
 				err = proc_put_char(&buffer, &left, '\t');
+				if (err)
+					break;
+			}
 			err = proc_put_long(&buffer, &left, val, false);
 			if (err)
 				break;
-- 
cgit 


From f02147ef190b3963bb61ec0e140ec47f22889f38 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Tue, 12 Nov 2013 15:11:22 -0800
Subject: kernel/sysctl_binary.c: use scnprintf() instead of snprintf()

snprintf() will return the 'ideal' length which may be larger than real
buffer length, if we only want to use real length, need use scnprintf()
instead of.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/sysctl_binary.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/sysctl_binary.c b/kernel/sysctl_binary.c
index b609213ca9a2..653cbbd9e7ad 100644
--- a/kernel/sysctl_binary.c
+++ b/kernel/sysctl_binary.c
@@ -1024,7 +1024,7 @@ static ssize_t bin_intvec(struct file *file,
 			if (get_user(value, vec + i))
 				goto out_kfree;
 
-			str += snprintf(str, end - str, "%lu\t", value);
+			str += scnprintf(str, end - str, "%lu\t", value);
 		}
 
 		result = kernel_write(file, buffer, str - buffer, 0);
@@ -1095,7 +1095,7 @@ static ssize_t bin_ulongvec(struct file *file,
 			if (get_user(value, vec + i))
 				goto out_kfree;
 
-			str += snprintf(str, end - str, "%lu\t", value);
+			str += scnprintf(str, end - str, "%lu\t", value);
 		}
 
 		result = kernel_write(file, buffer, str - buffer, 0);
@@ -1205,7 +1205,7 @@ static ssize_t bin_dn_node_address(struct file *file,
 		if (get_user(dnaddr, (__le16 __user *)newval))
 			goto out;
 
-		len = snprintf(buf, sizeof(buf), "%hu.%hu",
+		len = scnprintf(buf, sizeof(buf), "%hu.%hu",
 				le16_to_cpu(dnaddr) >> 10,
 				le16_to_cpu(dnaddr) & 0x3ff);
 
-- 
cgit 


From 3fa582663129330d57d15b97ae534dc1203fc3aa Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Tue, 12 Nov 2013 15:11:22 -0800
Subject: kernel/taskstats.c: add nla_nest_cancel() for failure processing
 between nla_nest_start() and nla_nest_end()

When failure occurs between nla_nest_start() and nla_nest_end(), we should
call nla_nest_cancel() to clean up related things.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Cc: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/taskstats.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index 145bb4d3bd4d..1db6808c494b 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -404,11 +404,15 @@ static struct taskstats *mk_reply(struct sk_buff *skb, int type, u32 pid)
 	if (!na)
 		goto err;
 
-	if (nla_put(skb, type, sizeof(pid), &pid) < 0)
+	if (nla_put(skb, type, sizeof(pid), &pid) < 0) {
+		nla_nest_cancel(skb, na);
 		goto err;
+	}
 	ret = nla_reserve(skb, TASKSTATS_TYPE_STATS, sizeof(struct taskstats));
-	if (!ret)
+	if (!ret) {
+		nla_nest_cancel(skb, na);
 		goto err;
+	}
 	nla_nest_end(skb, na);
 
 	return nla_data(ret);
-- 
cgit 


From 0d20633b041041ecda39ae562e62087acf0092f1 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Tue, 12 Nov 2013 15:11:23 -0800
Subject: kernel/taskstats.c: return -ENOMEM when alloc memory fails in
 add_del_listener()

For registering in add_del_listener(), when kmalloc_node() fails, need
return -ENOMEM instead of success code, and cmd_attr_register_cpumask()
wants to know about it.

After modification, give a simple common test "build -> boot up ->
kernel/controllers/cgroup/getdelays by LTP tools".

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/taskstats.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index 1db6808c494b..9f4618eb51c8 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -290,6 +290,7 @@ static int add_del_listener(pid_t pid, const struct cpumask *mask, int isadd)
 	struct listener_list *listeners;
 	struct listener *s, *tmp, *s2;
 	unsigned int cpu;
+	int ret = 0;
 
 	if (!cpumask_subset(mask, cpu_possible_mask))
 		return -EINVAL;
@@ -304,9 +305,10 @@ static int add_del_listener(pid_t pid, const struct cpumask *mask, int isadd)
 		for_each_cpu(cpu, mask) {
 			s = kmalloc_node(sizeof(struct listener),
 					GFP_KERNEL, cpu_to_node(cpu));
-			if (!s)
+			if (!s) {
+				ret = -ENOMEM;
 				goto cleanup;
-
+			}
 			s->pid = pid;
 			s->valid = 1;
 
@@ -339,7 +341,7 @@ cleanup:
 		}
 		up_write(&listeners->sem);
 	}
-	return 0;
+	return ret;
 }
 
 static int parse(struct nlattr *na, struct cpumask *mask)
-- 
cgit 


From 8cbce376e3fdf4a21f59365aefbb52eac3c2e312 Mon Sep 17 00:00:00 2001
From: Frantisek Hrbata <fhrbata@redhat.com>
Date: Tue, 12 Nov 2013 15:11:24 -0800
Subject: gcov: move gcov structs definitions to a gcc version specific file

Since also the gcov structures(gcov_info, gcov_fn_info, gcov_ctr_info) can
change between gcc releases, as shown in gcc 4.7, they cannot be defined
in a common header and need to be moved to a specific gcc implemention
file.  This also requires to make the gcov_info structure opaque for the
common code and to introduce simple helpers for accessing data inside
gcov_info.

Signed-off-by: Frantisek Hrbata <fhrbata@redhat.com>
Cc: Jan Stancek <jstancek@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Acked-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Andy Gospodarek <agospoda@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/gcov/base.c    |  26 ++++++------
 kernel/gcov/fs.c      |  27 ++++++------
 kernel/gcov/gcc_3_4.c | 115 ++++++++++++++++++++++++++++++++++++++++++++++++++
 kernel/gcov/gcov.h    |  65 +++++-----------------------
 4 files changed, 153 insertions(+), 80 deletions(-)

diff --git a/kernel/gcov/base.c b/kernel/gcov/base.c
index 9b22d03cc581..912576a671d8 100644
--- a/kernel/gcov/base.c
+++ b/kernel/gcov/base.c
@@ -20,7 +20,6 @@
 #include <linux/mutex.h>
 #include "gcov.h"
 
-static struct gcov_info *gcov_info_head;
 static int gcov_events_enabled;
 static DEFINE_MUTEX(gcov_lock);
 
@@ -34,7 +33,7 @@ void __gcov_init(struct gcov_info *info)
 
 	mutex_lock(&gcov_lock);
 	if (gcov_version == 0) {
-		gcov_version = info->version;
+		gcov_version = gcov_info_version(info);
 		/*
 		 * Printing gcc's version magic may prove useful for debugging
 		 * incompatibility reports.
@@ -45,8 +44,7 @@ void __gcov_init(struct gcov_info *info)
 	 * Add new profiling data structure to list and inform event
 	 * listener.
 	 */
-	info->next = gcov_info_head;
-	gcov_info_head = info;
+	gcov_info_link(info);
 	if (gcov_events_enabled)
 		gcov_event(GCOV_ADD, info);
 	mutex_unlock(&gcov_lock);
@@ -91,13 +89,15 @@ EXPORT_SYMBOL(__gcov_merge_delta);
  */
 void gcov_enable_events(void)
 {
-	struct gcov_info *info;
+	struct gcov_info *info = NULL;
 
 	mutex_lock(&gcov_lock);
 	gcov_events_enabled = 1;
+
 	/* Perform event callback for previously registered entries. */
-	for (info = gcov_info_head; info; info = info->next)
+	while ((info = gcov_info_next(info)))
 		gcov_event(GCOV_ADD, info);
+
 	mutex_unlock(&gcov_lock);
 }
 
@@ -112,25 +112,23 @@ static int gcov_module_notifier(struct notifier_block *nb, unsigned long event,
 				void *data)
 {
 	struct module *mod = data;
-	struct gcov_info *info;
-	struct gcov_info *prev;
+	struct gcov_info *info = NULL;
+	struct gcov_info *prev = NULL;
 
 	if (event != MODULE_STATE_GOING)
 		return NOTIFY_OK;
 	mutex_lock(&gcov_lock);
-	prev = NULL;
+
 	/* Remove entries located in module from linked list. */
-	for (info = gcov_info_head; info; info = info->next) {
+	while ((info = gcov_info_next(info))) {
 		if (within(info, mod->module_core, mod->core_size)) {
-			if (prev)
-				prev->next = info->next;
-			else
-				gcov_info_head = info->next;
+			gcov_info_unlink(prev, info);
 			if (gcov_events_enabled)
 				gcov_event(GCOV_REMOVE, info);
 		} else
 			prev = info;
 	}
+
 	mutex_unlock(&gcov_lock);
 
 	return NOTIFY_OK;
diff --git a/kernel/gcov/fs.c b/kernel/gcov/fs.c
index 7a7d2ee96d42..b49dfce8e8a1 100644
--- a/kernel/gcov/fs.c
+++ b/kernel/gcov/fs.c
@@ -242,7 +242,7 @@ static struct gcov_node *get_node_by_name(const char *name)
 
 	list_for_each_entry(node, &all_head, all) {
 		info = get_node_info(node);
-		if (info && (strcmp(info->filename, name) == 0))
+		if (info && (strcmp(gcov_info_filename(info), name) == 0))
 			return node;
 	}
 
@@ -279,7 +279,7 @@ static ssize_t gcov_seq_write(struct file *file, const char __user *addr,
 	seq = file->private_data;
 	info = gcov_iter_get_info(seq->private);
 	mutex_lock(&node_lock);
-	node = get_node_by_name(info->filename);
+	node = get_node_by_name(gcov_info_filename(info));
 	if (node) {
 		/* Reset counts or remove node for unloaded modules. */
 		if (node->num_loaded == 0)
@@ -376,8 +376,9 @@ static void add_links(struct gcov_node *node, struct dentry *parent)
 	if (!node->links)
 		return;
 	for (i = 0; i < num; i++) {
-		target = get_link_target(get_node_info(node)->filename,
-					 &gcov_link[i]);
+		target = get_link_target(
+				gcov_info_filename(get_node_info(node)),
+				&gcov_link[i]);
 		if (!target)
 			goto out_err;
 		basename = strrchr(target, '/');
@@ -576,7 +577,7 @@ static void add_node(struct gcov_info *info)
 	struct gcov_node *parent;
 	struct gcov_node *node;
 
-	filename = kstrdup(info->filename, GFP_KERNEL);
+	filename = kstrdup(gcov_info_filename(info), GFP_KERNEL);
 	if (!filename)
 		return;
 	parent = &root_node;
@@ -631,7 +632,7 @@ static void add_info(struct gcov_node *node, struct gcov_info *info)
 	loaded_info = kcalloc(num + 1, sizeof(struct gcov_info *), GFP_KERNEL);
 	if (!loaded_info) {
 		pr_warning("could not add '%s' (out of memory)\n",
-			   info->filename);
+			   gcov_info_filename(info));
 		return;
 	}
 	memcpy(loaded_info, node->loaded_info,
@@ -645,7 +646,8 @@ static void add_info(struct gcov_node *node, struct gcov_info *info)
 		 */
 		if (!gcov_info_is_compatible(node->unloaded_info, info)) {
 			pr_warning("discarding saved data for %s "
-				   "(incompatible version)\n", info->filename);
+				   "(incompatible version)\n",
+				   gcov_info_filename(info));
 			gcov_info_free(node->unloaded_info);
 			node->unloaded_info = NULL;
 		}
@@ -656,7 +658,7 @@ static void add_info(struct gcov_node *node, struct gcov_info *info)
 		 */
 		if (!gcov_info_is_compatible(node->loaded_info[0], info)) {
 			pr_warning("could not add '%s' (incompatible "
-				   "version)\n", info->filename);
+				   "version)\n", gcov_info_filename(info));
 			kfree(loaded_info);
 			return;
 		}
@@ -692,7 +694,8 @@ static void save_info(struct gcov_node *node, struct gcov_info *info)
 		node->unloaded_info = gcov_info_dup(info);
 		if (!node->unloaded_info) {
 			pr_warning("could not save data for '%s' "
-				   "(out of memory)\n", info->filename);
+				   "(out of memory)\n",
+				   gcov_info_filename(info));
 		}
 	}
 }
@@ -708,7 +711,7 @@ static void remove_info(struct gcov_node *node, struct gcov_info *info)
 	i = get_info_index(node, info);
 	if (i < 0) {
 		pr_warning("could not remove '%s' (not found)\n",
-			   info->filename);
+			   gcov_info_filename(info));
 		return;
 	}
 	if (gcov_persist)
@@ -735,7 +738,7 @@ void gcov_event(enum gcov_action action, struct gcov_info *info)
 	struct gcov_node *node;
 
 	mutex_lock(&node_lock);
-	node = get_node_by_name(info->filename);
+	node = get_node_by_name(gcov_info_filename(info));
 	switch (action) {
 	case GCOV_ADD:
 		if (node)
@@ -748,7 +751,7 @@ void gcov_event(enum gcov_action action, struct gcov_info *info)
 			remove_info(node, info);
 		else {
 			pr_warning("could not remove '%s' (not found)\n",
-				   info->filename);
+				   gcov_info_filename(info));
 		}
 		break;
 	}
diff --git a/kernel/gcov/gcc_3_4.c b/kernel/gcov/gcc_3_4.c
index ae5bb4260033..27bc88a35013 100644
--- a/kernel/gcov/gcc_3_4.c
+++ b/kernel/gcov/gcc_3_4.c
@@ -21,6 +21,121 @@
 #include <linux/vmalloc.h>
 #include "gcov.h"
 
+#define GCOV_COUNTERS		5
+
+static struct gcov_info *gcov_info_head;
+
+/**
+ * struct gcov_fn_info - profiling meta data per function
+ * @ident: object file-unique function identifier
+ * @checksum: function checksum
+ * @n_ctrs: number of values per counter type belonging to this function
+ *
+ * This data is generated by gcc during compilation and doesn't change
+ * at run-time.
+ */
+struct gcov_fn_info {
+	unsigned int ident;
+	unsigned int checksum;
+	unsigned int n_ctrs[0];
+};
+
+/**
+ * struct gcov_ctr_info - profiling data per counter type
+ * @num: number of counter values for this type
+ * @values: array of counter values for this type
+ * @merge: merge function for counter values of this type (unused)
+ *
+ * This data is generated by gcc during compilation and doesn't change
+ * at run-time with the exception of the values array.
+ */
+struct gcov_ctr_info {
+	unsigned int	num;
+	gcov_type	*values;
+	void		(*merge)(gcov_type *, unsigned int);
+};
+
+/**
+ * struct gcov_info - profiling data per object file
+ * @version: gcov version magic indicating the gcc version used for compilation
+ * @next: list head for a singly-linked list
+ * @stamp: time stamp
+ * @filename: name of the associated gcov data file
+ * @n_functions: number of instrumented functions
+ * @functions: function data
+ * @ctr_mask: mask specifying which counter types are active
+ * @counts: counter data per counter type
+ *
+ * This data is generated by gcc during compilation and doesn't change
+ * at run-time with the exception of the next pointer.
+ */
+struct gcov_info {
+	unsigned int			version;
+	struct gcov_info		*next;
+	unsigned int			stamp;
+	const char			*filename;
+	unsigned int			n_functions;
+	const struct gcov_fn_info	*functions;
+	unsigned int			ctr_mask;
+	struct gcov_ctr_info		counts[0];
+};
+
+/**
+ * gcov_info_filename - return info filename
+ * @info: profiling data set
+ */
+const char *gcov_info_filename(struct gcov_info *info)
+{
+	return info->filename;
+}
+
+/**
+ * gcov_info_version - return info version
+ * @info: profiling data set
+ */
+unsigned int gcov_info_version(struct gcov_info *info)
+{
+	return info->version;
+}
+
+/**
+ * gcov_info_next - return next profiling data set
+ * @info: profiling data set
+ *
+ * Returns next gcov_info following @info or first gcov_info in the chain if
+ * @info is %NULL.
+ */
+struct gcov_info *gcov_info_next(struct gcov_info *info)
+{
+	if (!info)
+		return gcov_info_head;
+
+	return info->next;
+}
+
+/**
+ * gcov_info_link - link/add profiling data set to the list
+ * @info: profiling data set
+ */
+void gcov_info_link(struct gcov_info *info)
+{
+	info->next = gcov_info_head;
+	gcov_info_head = info;
+}
+
+/**
+ * gcov_info_unlink - unlink/remove profiling data set from the list
+ * @prev: previous profiling data set
+ * @info: profiling data set
+ */
+void gcov_info_unlink(struct gcov_info *prev, struct gcov_info *info)
+{
+	if (prev)
+		prev->next = info->next;
+	else
+		gcov_info_head = info->next;
+}
+
 /* Symbolic links to be created for each profiling data file. */
 const struct gcov_link gcov_link[] = {
 	{ OBJ_TREE, "gcno" },	/* Link to .gcno file in $(objtree). */
diff --git a/kernel/gcov/gcov.h b/kernel/gcov/gcov.h
index 060073ebf7a6..92c8e22a29ed 100644
--- a/kernel/gcov/gcov.h
+++ b/kernel/gcov/gcov.h
@@ -21,7 +21,6 @@
  * gcc and need to be kept as close to the original definition as possible to
  * remain compatible.
  */
-#define GCOV_COUNTERS		5
 #define GCOV_DATA_MAGIC		((unsigned int) 0x67636461)
 #define GCOV_TAG_FUNCTION	((unsigned int) 0x01000000)
 #define GCOV_TAG_COUNTER_BASE	((unsigned int) 0x01a10000)
@@ -34,60 +33,18 @@ typedef long gcov_type;
 typedef long long gcov_type;
 #endif
 
-/**
- * struct gcov_fn_info - profiling meta data per function
- * @ident: object file-unique function identifier
- * @checksum: function checksum
- * @n_ctrs: number of values per counter type belonging to this function
- *
- * This data is generated by gcc during compilation and doesn't change
- * at run-time.
- */
-struct gcov_fn_info {
-	unsigned int ident;
-	unsigned int checksum;
-	unsigned int n_ctrs[0];
-};
-
-/**
- * struct gcov_ctr_info - profiling data per counter type
- * @num: number of counter values for this type
- * @values: array of counter values for this type
- * @merge: merge function for counter values of this type (unused)
- *
- * This data is generated by gcc during compilation and doesn't change
- * at run-time with the exception of the values array.
- */
-struct gcov_ctr_info {
-	unsigned int	num;
-	gcov_type	*values;
-	void		(*merge)(gcov_type *, unsigned int);
-};
+/* Opaque gcov_info. The gcov structures can change as for example in gcc 4.7 so
+ * we cannot use full definition here and they need to be placed in gcc specific
+ * implementation of gcov. This also means no direct access to the members in
+ * generic code and usage of the interface below.*/
+struct gcov_info;
 
-/**
- * struct gcov_info - profiling data per object file
- * @version: gcov version magic indicating the gcc version used for compilation
- * @next: list head for a singly-linked list
- * @stamp: time stamp
- * @filename: name of the associated gcov data file
- * @n_functions: number of instrumented functions
- * @functions: function data
- * @ctr_mask: mask specifying which counter types are active
- * @counts: counter data per counter type
- *
- * This data is generated by gcc during compilation and doesn't change
- * at run-time with the exception of the next pointer.
- */
-struct gcov_info {
-	unsigned int			version;
-	struct gcov_info		*next;
-	unsigned int			stamp;
-	const char			*filename;
-	unsigned int			n_functions;
-	const struct gcov_fn_info	*functions;
-	unsigned int			ctr_mask;
-	struct gcov_ctr_info		counts[0];
-};
+/* Interface to access gcov_info data  */
+const char *gcov_info_filename(struct gcov_info *info);
+unsigned int gcov_info_version(struct gcov_info *info);
+struct gcov_info *gcov_info_next(struct gcov_info *info);
+void gcov_info_link(struct gcov_info *info);
+void gcov_info_unlink(struct gcov_info *prev, struct gcov_info *info);
 
 /* Base interface. */
 enum gcov_action {
-- 
cgit 


From 5f41ea0386a53414d688cfcaa321a78310e5f7c1 Mon Sep 17 00:00:00 2001
From: Frantisek Hrbata <fhrbata@redhat.com>
Date: Tue, 12 Nov 2013 15:11:26 -0800
Subject: gcov: add support for gcc 4.7 gcov format

The gcov in-memory format changed in gcc 4.7.  The biggest change, which
requires this special implementation, is that gcov_info no longer contains
array of counters for each counter type for all functions and gcov_fn_info
is not used for mapping of function's counters to these arrays(offset).
Now each gcov_fn_info contans it's counters, which makes things a little
bit easier.

This is heavily based on the previous gcc_3_4.c implementation and patches
provided by Peter Oberparleiter.  Specially the buffer gcda implementation
for iterator.

[akpm@linux-foundation.org: use kmemdup() and kcalloc()]
[oberpar@linux.vnet.ibm.com: gcc_4_7.c needs vmalloc.h]
Signed-off-by: Frantisek Hrbata <fhrbata@redhat.com>
Cc: Jan Stancek <jstancek@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Reviewed-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Andy Gospodarek <agospoda@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/gcov/base.c    |   6 +
 kernel/gcov/gcc_4_7.c | 560 ++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 566 insertions(+)
 create mode 100644 kernel/gcov/gcc_4_7.c

diff --git a/kernel/gcov/base.c b/kernel/gcov/base.c
index 912576a671d8..f45b75b713c0 100644
--- a/kernel/gcov/base.c
+++ b/kernel/gcov/base.c
@@ -79,6 +79,12 @@ void __gcov_merge_delta(gcov_type *counters, unsigned int n_counters)
 }
 EXPORT_SYMBOL(__gcov_merge_delta);
 
+void __gcov_merge_ior(gcov_type *counters, unsigned int n_counters)
+{
+	/* Unused. */
+}
+EXPORT_SYMBOL(__gcov_merge_ior);
+
 /**
  * gcov_enable_events - enable event reporting through gcov_event()
  *
diff --git a/kernel/gcov/gcc_4_7.c b/kernel/gcov/gcc_4_7.c
new file mode 100644
index 000000000000..2c6e4631c814
--- /dev/null
+++ b/kernel/gcov/gcc_4_7.c
@@ -0,0 +1,560 @@
+/*
+ *  This code provides functions to handle gcc's profiling data format
+ *  introduced with gcc 4.7.
+ *
+ *  This file is based heavily on gcc_3_4.c file.
+ *
+ *  For a better understanding, refer to gcc source:
+ *  gcc/gcov-io.h
+ *  libgcc/libgcov.c
+ *
+ *  Uses gcc-internal data definitions.
+ */
+
+#include <linux/errno.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/seq_file.h>
+#include <linux/vmalloc.h>
+#include "gcov.h"
+
+#define GCOV_COUNTERS			8
+#define GCOV_TAG_FUNCTION_LENGTH	3
+
+static struct gcov_info *gcov_info_head;
+
+/**
+ * struct gcov_ctr_info - information about counters for a single function
+ * @num: number of counter values for this type
+ * @values: array of counter values for this type
+ *
+ * This data is generated by gcc during compilation and doesn't change
+ * at run-time with the exception of the values array.
+ */
+struct gcov_ctr_info {
+	unsigned int num;
+	gcov_type *values;
+};
+
+/**
+ * struct gcov_fn_info - profiling meta data per function
+ * @key: comdat key
+ * @ident: unique ident of function
+ * @lineno_checksum: function lineo_checksum
+ * @cfg_checksum: function cfg checksum
+ * @ctrs: instrumented counters
+ *
+ * This data is generated by gcc during compilation and doesn't change
+ * at run-time.
+ *
+ * Information about a single function.  This uses the trailing array
+ * idiom. The number of counters is determined from the merge pointer
+ * array in gcov_info.  The key is used to detect which of a set of
+ * comdat functions was selected -- it points to the gcov_info object
+ * of the object file containing the selected comdat function.
+ */
+struct gcov_fn_info {
+	const struct gcov_info *key;
+	unsigned int ident;
+	unsigned int lineno_checksum;
+	unsigned int cfg_checksum;
+	struct gcov_ctr_info ctrs[0];
+};
+
+/**
+ * struct gcov_info - profiling data per object file
+ * @version: gcov version magic indicating the gcc version used for compilation
+ * @next: list head for a singly-linked list
+ * @stamp: uniquifying time stamp
+ * @filename: name of the associated gcov data file
+ * @merge: merge functions (null for unused counter type)
+ * @n_functions: number of instrumented functions
+ * @functions: pointer to pointers to function information
+ *
+ * This data is generated by gcc during compilation and doesn't change
+ * at run-time with the exception of the next pointer.
+ */
+struct gcov_info {
+	unsigned int version;
+	struct gcov_info *next;
+	unsigned int stamp;
+	const char *filename;
+	void (*merge[GCOV_COUNTERS])(gcov_type *, unsigned int);
+	unsigned int n_functions;
+	struct gcov_fn_info **functions;
+};
+
+/**
+ * gcov_info_filename - return info filename
+ * @info: profiling data set
+ */
+const char *gcov_info_filename(struct gcov_info *info)
+{
+	return info->filename;
+}
+
+/**
+ * gcov_info_version - return info version
+ * @info: profiling data set
+ */
+unsigned int gcov_info_version(struct gcov_info *info)
+{
+	return info->version;
+}
+
+/**
+ * gcov_info_next - return next profiling data set
+ * @info: profiling data set
+ *
+ * Returns next gcov_info following @info or first gcov_info in the chain if
+ * @info is %NULL.
+ */
+struct gcov_info *gcov_info_next(struct gcov_info *info)
+{
+	if (!info)
+		return gcov_info_head;
+
+	return info->next;
+}
+
+/**
+ * gcov_info_link - link/add profiling data set to the list
+ * @info: profiling data set
+ */
+void gcov_info_link(struct gcov_info *info)
+{
+	info->next = gcov_info_head;
+	gcov_info_head = info;
+}
+
+/**
+ * gcov_info_unlink - unlink/remove profiling data set from the list
+ * @prev: previous profiling data set
+ * @info: profiling data set
+ */
+void gcov_info_unlink(struct gcov_info *prev, struct gcov_info *info)
+{
+	if (prev)
+		prev->next = info->next;
+	else
+		gcov_info_head = info->next;
+}
+
+/* Symbolic links to be created for each profiling data file. */
+const struct gcov_link gcov_link[] = {
+	{ OBJ_TREE, "gcno" },	/* Link to .gcno file in $(objtree). */
+	{ 0, NULL},
+};
+
+/*
+ * Determine whether a counter is active. Doesn't change at run-time.
+ */
+static int counter_active(struct gcov_info *info, unsigned int type)
+{
+	return info->merge[type] ? 1 : 0;
+}
+
+/* Determine number of active counters. Based on gcc magic. */
+static unsigned int num_counter_active(struct gcov_info *info)
+{
+	unsigned int i;
+	unsigned int result = 0;
+
+	for (i = 0; i < GCOV_COUNTERS; i++) {
+		if (counter_active(info, i))
+			result++;
+	}
+	return result;
+}
+
+/**
+ * gcov_info_reset - reset profiling data to zero
+ * @info: profiling data set
+ */
+void gcov_info_reset(struct gcov_info *info)
+{
+	struct gcov_ctr_info *ci_ptr;
+	unsigned int fi_idx;
+	unsigned int ct_idx;
+
+	for (fi_idx = 0; fi_idx < info->n_functions; fi_idx++) {
+		ci_ptr = info->functions[fi_idx]->ctrs;
+
+		for (ct_idx = 0; ct_idx < GCOV_COUNTERS; ct_idx++) {
+			if (!counter_active(info, ct_idx))
+				continue;
+
+			memset(ci_ptr->values, 0,
+					sizeof(gcov_type) * ci_ptr->num);
+			ci_ptr++;
+		}
+	}
+}
+
+/**
+ * gcov_info_is_compatible - check if profiling data can be added
+ * @info1: first profiling data set
+ * @info2: second profiling data set
+ *
+ * Returns non-zero if profiling data can be added, zero otherwise.
+ */
+int gcov_info_is_compatible(struct gcov_info *info1, struct gcov_info *info2)
+{
+	return (info1->stamp == info2->stamp);
+}
+
+/**
+ * gcov_info_add - add up profiling data
+ * @dest: profiling data set to which data is added
+ * @source: profiling data set which is added
+ *
+ * Adds profiling counts of @source to @dest.
+ */
+void gcov_info_add(struct gcov_info *dst, struct gcov_info *src)
+{
+	struct gcov_ctr_info *dci_ptr;
+	struct gcov_ctr_info *sci_ptr;
+	unsigned int fi_idx;
+	unsigned int ct_idx;
+	unsigned int val_idx;
+
+	for (fi_idx = 0; fi_idx < src->n_functions; fi_idx++) {
+		dci_ptr = dst->functions[fi_idx]->ctrs;
+		sci_ptr = src->functions[fi_idx]->ctrs;
+
+		for (ct_idx = 0; ct_idx < GCOV_COUNTERS; ct_idx++) {
+			if (!counter_active(src, ct_idx))
+				continue;
+
+			for (val_idx = 0; val_idx < sci_ptr->num; val_idx++)
+				dci_ptr->values[val_idx] +=
+					sci_ptr->values[val_idx];
+
+			dci_ptr++;
+			sci_ptr++;
+		}
+	}
+}
+
+/**
+ * gcov_info_dup - duplicate profiling data set
+ * @info: profiling data set to duplicate
+ *
+ * Return newly allocated duplicate on success, %NULL on error.
+ */
+struct gcov_info *gcov_info_dup(struct gcov_info *info)
+{
+	struct gcov_info *dup;
+	struct gcov_ctr_info *dci_ptr; /* dst counter info */
+	struct gcov_ctr_info *sci_ptr; /* src counter info */
+	unsigned int active;
+	unsigned int fi_idx; /* function info idx */
+	unsigned int ct_idx; /* counter type idx */
+	size_t fi_size; /* function info size */
+	size_t cv_size; /* counter values size */
+
+	dup = kmemdup(info, sizeof(*dup), GFP_KERNEL);
+	if (!dup)
+		return NULL;
+
+	dup->next = NULL;
+	dup->filename = NULL;
+	dup->functions = NULL;
+
+	dup->filename = kstrdup(info->filename, GFP_KERNEL);
+	if (!dup->filename)
+		goto err_free;
+
+	dup->functions = kcalloc(info->n_functions,
+				 sizeof(struct gcov_fn_info *), GFP_KERNEL);
+	if (!dup->functions)
+		goto err_free;
+
+	active = num_counter_active(info);
+	fi_size = sizeof(struct gcov_fn_info);
+	fi_size += sizeof(struct gcov_ctr_info) * active;
+
+	for (fi_idx = 0; fi_idx < info->n_functions; fi_idx++) {
+		dup->functions[fi_idx] = kzalloc(fi_size, GFP_KERNEL);
+		if (!dup->functions[fi_idx])
+			goto err_free;
+
+		*(dup->functions[fi_idx]) = *(info->functions[fi_idx]);
+
+		sci_ptr = info->functions[fi_idx]->ctrs;
+		dci_ptr = dup->functions[fi_idx]->ctrs;
+
+		for (ct_idx = 0; ct_idx < active; ct_idx++) {
+
+			cv_size = sizeof(gcov_type) * sci_ptr->num;
+
+			dci_ptr->values = vmalloc(cv_size);
+
+			if (!dci_ptr->values)
+				goto err_free;
+
+			dci_ptr->num = sci_ptr->num;
+			memcpy(dci_ptr->values, sci_ptr->values, cv_size);
+
+			sci_ptr++;
+			dci_ptr++;
+		}
+	}
+
+	return dup;
+err_free:
+	gcov_info_free(dup);
+	return NULL;
+}
+
+/**
+ * gcov_info_free - release memory for profiling data set duplicate
+ * @info: profiling data set duplicate to free
+ */
+void gcov_info_free(struct gcov_info *info)
+{
+	unsigned int active;
+	unsigned int fi_idx;
+	unsigned int ct_idx;
+	struct gcov_ctr_info *ci_ptr;
+
+	if (!info->functions)
+		goto free_info;
+
+	active = num_counter_active(info);
+
+	for (fi_idx = 0; fi_idx < info->n_functions; fi_idx++) {
+		if (!info->functions[fi_idx])
+			continue;
+
+		ci_ptr = info->functions[fi_idx]->ctrs;
+
+		for (ct_idx = 0; ct_idx < active; ct_idx++, ci_ptr++)
+			vfree(ci_ptr->values);
+
+		kfree(info->functions[fi_idx]);
+	}
+
+free_info:
+	kfree(info->functions);
+	kfree(info->filename);
+	kfree(info);
+}
+
+#define ITER_STRIDE	PAGE_SIZE
+
+/**
+ * struct gcov_iterator - specifies current file position in logical records
+ * @info: associated profiling data
+ * @buffer: buffer containing file data
+ * @size: size of buffer
+ * @pos: current position in file
+ */
+struct gcov_iterator {
+	struct gcov_info *info;
+	void *buffer;
+	size_t size;
+	loff_t pos;
+};
+
+/**
+ * store_gcov_u32 - store 32 bit number in gcov format to buffer
+ * @buffer: target buffer or NULL
+ * @off: offset into the buffer
+ * @v: value to be stored
+ *
+ * Number format defined by gcc: numbers are recorded in the 32 bit
+ * unsigned binary form of the endianness of the machine generating the
+ * file. Returns the number of bytes stored. If @buffer is %NULL, doesn't
+ * store anything.
+ */
+static size_t store_gcov_u32(void *buffer, size_t off, u32 v)
+{
+	u32 *data;
+
+	if (buffer) {
+		data = buffer + off;
+		*data = v;
+	}
+
+	return sizeof(*data);
+}
+
+/**
+ * store_gcov_u64 - store 64 bit number in gcov format to buffer
+ * @buffer: target buffer or NULL
+ * @off: offset into the buffer
+ * @v: value to be stored
+ *
+ * Number format defined by gcc: numbers are recorded in the 32 bit
+ * unsigned binary form of the endianness of the machine generating the
+ * file. 64 bit numbers are stored as two 32 bit numbers, the low part
+ * first. Returns the number of bytes stored. If @buffer is %NULL, doesn't store
+ * anything.
+ */
+static size_t store_gcov_u64(void *buffer, size_t off, u64 v)
+{
+	u32 *data;
+
+	if (buffer) {
+		data = buffer + off;
+
+		data[0] = (v & 0xffffffffUL);
+		data[1] = (v >> 32);
+	}
+
+	return sizeof(*data) * 2;
+}
+
+/**
+ * convert_to_gcda - convert profiling data set to gcda file format
+ * @buffer: the buffer to store file data or %NULL if no data should be stored
+ * @info: profiling data set to be converted
+ *
+ * Returns the number of bytes that were/would have been stored into the buffer.
+ */
+static size_t convert_to_gcda(char *buffer, struct gcov_info *info)
+{
+	struct gcov_fn_info *fi_ptr;
+	struct gcov_ctr_info *ci_ptr;
+	unsigned int fi_idx;
+	unsigned int ct_idx;
+	unsigned int cv_idx;
+	size_t pos = 0;
+
+	/* File header. */
+	pos += store_gcov_u32(buffer, pos, GCOV_DATA_MAGIC);
+	pos += store_gcov_u32(buffer, pos, info->version);
+	pos += store_gcov_u32(buffer, pos, info->stamp);
+
+	for (fi_idx = 0; fi_idx < info->n_functions; fi_idx++) {
+		fi_ptr = info->functions[fi_idx];
+
+		/* Function record. */
+		pos += store_gcov_u32(buffer, pos, GCOV_TAG_FUNCTION);
+		pos += store_gcov_u32(buffer, pos, GCOV_TAG_FUNCTION_LENGTH);
+		pos += store_gcov_u32(buffer, pos, fi_ptr->ident);
+		pos += store_gcov_u32(buffer, pos, fi_ptr->lineno_checksum);
+		pos += store_gcov_u32(buffer, pos, fi_ptr->cfg_checksum);
+
+		ci_ptr = fi_ptr->ctrs;
+
+		for (ct_idx = 0; ct_idx < GCOV_COUNTERS; ct_idx++) {
+			if (!counter_active(info, ct_idx))
+				continue;
+
+			/* Counter record. */
+			pos += store_gcov_u32(buffer, pos,
+					      GCOV_TAG_FOR_COUNTER(ct_idx));
+			pos += store_gcov_u32(buffer, pos, ci_ptr->num * 2);
+
+			for (cv_idx = 0; cv_idx < ci_ptr->num; cv_idx++) {
+				pos += store_gcov_u64(buffer, pos,
+						      ci_ptr->values[cv_idx]);
+			}
+
+			ci_ptr++;
+		}
+	}
+
+	return pos;
+}
+
+/**
+ * gcov_iter_new - allocate and initialize profiling data iterator
+ * @info: profiling data set to be iterated
+ *
+ * Return file iterator on success, %NULL otherwise.
+ */
+struct gcov_iterator *gcov_iter_new(struct gcov_info *info)
+{
+	struct gcov_iterator *iter;
+
+	iter = kzalloc(sizeof(struct gcov_iterator), GFP_KERNEL);
+	if (!iter)
+		goto err_free;
+
+	iter->info = info;
+	/* Dry-run to get the actual buffer size. */
+	iter->size = convert_to_gcda(NULL, info);
+	iter->buffer = vmalloc(iter->size);
+	if (!iter->buffer)
+		goto err_free;
+
+	convert_to_gcda(iter->buffer, info);
+
+	return iter;
+
+err_free:
+	kfree(iter);
+	return NULL;
+}
+
+
+/**
+ * gcov_iter_get_info - return profiling data set for given file iterator
+ * @iter: file iterator
+ */
+void gcov_iter_free(struct gcov_iterator *iter)
+{
+	vfree(iter->buffer);
+	kfree(iter);
+}
+
+/**
+ * gcov_iter_get_info - return profiling data set for given file iterator
+ * @iter: file iterator
+ */
+struct gcov_info *gcov_iter_get_info(struct gcov_iterator *iter)
+{
+	return iter->info;
+}
+
+/**
+ * gcov_iter_start - reset file iterator to starting position
+ * @iter: file iterator
+ */
+void gcov_iter_start(struct gcov_iterator *iter)
+{
+	iter->pos = 0;
+}
+
+/**
+ * gcov_iter_next - advance file iterator to next logical record
+ * @iter: file iterator
+ *
+ * Return zero if new position is valid, non-zero if iterator has reached end.
+ */
+int gcov_iter_next(struct gcov_iterator *iter)
+{
+	if (iter->pos < iter->size)
+		iter->pos += ITER_STRIDE;
+
+	if (iter->pos >= iter->size)
+		return -EINVAL;
+
+	return 0;
+}
+
+/**
+ * gcov_iter_write - write data for current pos to seq_file
+ * @iter: file iterator
+ * @seq: seq_file handle
+ *
+ * Return zero on success, non-zero otherwise.
+ */
+int gcov_iter_write(struct gcov_iterator *iter, struct seq_file *seq)
+{
+	size_t len;
+
+	if (iter->pos >= iter->size)
+		return -EINVAL;
+
+	len = ITER_STRIDE;
+	if (iter->pos + len > iter->size)
+		len = iter->size - iter->pos;
+
+	seq_write(seq, iter->buffer + iter->pos, len);
+
+	return 0;
+}
-- 
cgit 


From 17c568d60af5a810208baf116dc174a2005c6c3e Mon Sep 17 00:00:00 2001
From: Frantisek Hrbata <fhrbata@redhat.com>
Date: Tue, 12 Nov 2013 15:11:27 -0800
Subject: gcov: compile specific gcov implementation based on gcc version

Compile the correct gcov implementation file for the specific gcc version.

Signed-off-by: Frantisek Hrbata <fhrbata@redhat.com>
Cc: Jan Stancek <jstancek@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Acked-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Andy Gospodarek <agospoda@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Documentation/gcov.txt |  4 ++++
 kernel/gcov/Kconfig    | 30 ++++++++++++++++++++++++++++++
 kernel/gcov/Makefile   | 32 +++++++++++++++++++++++++++++++-
 3 files changed, 65 insertions(+), 1 deletion(-)

diff --git a/Documentation/gcov.txt b/Documentation/gcov.txt
index e7ca6478cd93..7b727783db7e 100644
--- a/Documentation/gcov.txt
+++ b/Documentation/gcov.txt
@@ -50,6 +50,10 @@ Configure the kernel with:
         CONFIG_DEBUG_FS=y
         CONFIG_GCOV_KERNEL=y
 
+select the gcc's gcov format, default is autodetect based on gcc version:
+
+        CONFIG_GCOV_FORMAT_AUTODETECT=y
+
 and to get coverage data for the entire kernel:
 
         CONFIG_GCOV_PROFILE_ALL=y
diff --git a/kernel/gcov/Kconfig b/kernel/gcov/Kconfig
index d4da55d1fb65..d04ce8ac4399 100644
--- a/kernel/gcov/Kconfig
+++ b/kernel/gcov/Kconfig
@@ -46,4 +46,34 @@ config GCOV_PROFILE_ALL
 	larger and run slower. Also be sure to exclude files from profiling
 	which are not linked to the kernel image to prevent linker errors.
 
+choice
+	prompt "Specify GCOV format"
+	depends on GCOV_KERNEL
+	default GCOV_FORMAT_AUTODETECT
+	---help---
+	The gcov format is usually determined by the GCC version, but there are
+	exceptions where format changes are integrated in lower-version GCCs.
+	In such a case use this option to adjust the format used in the kernel
+	accordingly.
+
+	If unsure, choose "Autodetect".
+
+config GCOV_FORMAT_AUTODETECT
+	bool "Autodetect"
+	---help---
+	Select this option to use the format that corresponds to your GCC
+	version.
+
+config GCOV_FORMAT_3_4
+	bool "GCC 3.4 format"
+	---help---
+	Select this option to use the format defined by GCC 3.4.
+
+config GCOV_FORMAT_4_7
+	bool "GCC 4.7 format"
+	---help---
+	Select this option to use the format defined by GCC 4.7.
+
+endchoice
+
 endmenu
diff --git a/kernel/gcov/Makefile b/kernel/gcov/Makefile
index e97ca59e2520..52aa7e8de927 100644
--- a/kernel/gcov/Makefile
+++ b/kernel/gcov/Makefile
@@ -1,3 +1,33 @@
 ccflags-y := -DSRCTREE='"$(srctree)"' -DOBJTREE='"$(objtree)"'
 
-obj-$(CONFIG_GCOV_KERNEL) := base.o fs.o gcc_3_4.o
+# if-lt
+# Usage VAR := $(call if-lt, $(a), $(b))
+# Returns 1 if (a < b)
+if-lt = $(shell [ $(1) -lt $(2) ] && echo 1)
+
+ifeq ($(CONFIG_GCOV_FORMAT_3_4),y)
+  cc-ver := 0304
+else ifeq ($(CONFIG_GCOV_FORMAT_4_7),y)
+  cc-ver := 0407
+else
+# Use cc-version if available, otherwise set 0
+#
+# scripts/Kbuild.include, which contains cc-version function, is not included
+# during make clean "make -f scripts/Makefile.clean obj=kernel/gcov"
+# Meaning cc-ver is empty causing if-lt test to fail with
+# "/bin/sh: line 0: [: -lt: unary operator expected" error mesage.
+# This has no affect on the clean phase, but the error message could be
+# confusing/annoying. So this dummy workaround sets cc-ver to zero if cc-version
+# is not available. We can probably move if-lt to Kbuild.include, so it's also
+# not defined during clean or to include Kbuild.include in
+# scripts/Makefile.clean. But the following workaround seems least invasive.
+  cc-ver := $(if $(call cc-version),$(call cc-version),0)
+endif
+
+obj-$(CONFIG_GCOV_KERNEL) := base.o fs.o
+
+ifeq ($(call if-lt, $(cc-ver), 0407),1)
+  obj-$(CONFIG_GCOV_KERNEL) += gcc_3_4.o
+else
+  obj-$(CONFIG_GCOV_KERNEL) += gcc_4_7.o
+endif
-- 
cgit 


From bddb12b32f90c571b177439a650f1046c3185c2e Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Tue, 12 Nov 2013 15:11:28 -0800
Subject: kernel/module.c: use pr_foo()

kernel/module.c uses a mix of printk(KERN_foo and pr_foo().  Convert it
all to pr_foo and make the offered cleanups.

Not sure what to do about the printk(KERN_DEFAULT).  We don't have a
pr_default().

Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Joe Perches <joe@perches.com>
Cc: Frantisek Hrbata <fhrbata@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/module.c | 103 ++++++++++++++++++++++++--------------------------------
 1 file changed, 44 insertions(+), 59 deletions(-)

diff --git a/kernel/module.c b/kernel/module.c
index dc582749fa13..af5ebd21d77b 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -378,23 +378,21 @@ static bool check_symbol(const struct symsearch *syms,
 		if (syms->licence == GPL_ONLY)
 			return false;
 		if (syms->licence == WILL_BE_GPL_ONLY && fsa->warn) {
-			printk(KERN_WARNING "Symbol %s is being used "
-			       "by a non-GPL module, which will not "
-			       "be allowed in the future\n", fsa->name);
+			pr_warn("Symbol %s is being used by a non-GPL module, "
+				"which will not be allowed in the future\n",
+				fsa->name);
 		}
 	}
 
 #ifdef CONFIG_UNUSED_SYMBOLS
 	if (syms->unused && fsa->warn) {
-		printk(KERN_WARNING "Symbol %s is marked as UNUSED, "
-		       "however this module is using it.\n", fsa->name);
-		printk(KERN_WARNING
-		       "This symbol will go away in the future.\n");
-		printk(KERN_WARNING
-		       "Please evalute if this is the right api to use and if "
-		       "it really is, submit a report the linux kernel "
-		       "mailinglist together with submitting your code for "
-		       "inclusion.\n");
+		pr_warn("Symbol %s is marked as UNUSED, however this module is "
+			"using it.\n", fsa->name);
+		pr_warn("This symbol will go away in the future.\n");
+		pr_warn("Please evalute if this is the right api to use and if "
+			"it really is, submit a report the linux kernel "
+			"mailinglist together with submitting your code for "
+			"inclusion.\n");
 	}
 #endif
 
@@ -492,16 +490,15 @@ static int percpu_modalloc(struct module *mod, struct load_info *info)
 		return 0;
 
 	if (align > PAGE_SIZE) {
-		printk(KERN_WARNING "%s: per-cpu alignment %li > %li\n",
-		       mod->name, align, PAGE_SIZE);
+		pr_warn("%s: per-cpu alignment %li > %li\n",
+			mod->name, align, PAGE_SIZE);
 		align = PAGE_SIZE;
 	}
 
 	mod->percpu = __alloc_reserved_percpu(pcpusec->sh_size, align);
 	if (!mod->percpu) {
-		printk(KERN_WARNING
-		       "%s: Could not allocate %lu bytes percpu data\n",
-		       mod->name, (unsigned long)pcpusec->sh_size);
+		pr_warn("%s: Could not allocate %lu bytes percpu data\n",
+			mod->name, (unsigned long)pcpusec->sh_size);
 		return -ENOMEM;
 	}
 	mod->percpu_size = pcpusec->sh_size;
@@ -679,7 +676,7 @@ static int add_module_usage(struct module *a, struct module *b)
 	pr_debug("Allocating new usage for %s.\n", a->name);
 	use = kmalloc(sizeof(*use), GFP_ATOMIC);
 	if (!use) {
-		printk(KERN_WARNING "%s: out of memory loading\n", a->name);
+		pr_warn("%s: out of memory loading\n", a->name);
 		return -ENOMEM;
 	}
 
@@ -1145,8 +1142,7 @@ static int try_to_force_load(struct module *mod, const char *reason)
 {
 #ifdef CONFIG_MODULE_FORCE_LOAD
 	if (!test_taint(TAINT_FORCED_MODULE))
-		printk(KERN_WARNING "%s: %s: kernel tainted.\n",
-		       mod->name, reason);
+		pr_warn("%s: %s: kernel tainted.\n", mod->name, reason);
 	add_taint_module(mod, TAINT_FORCED_MODULE, LOCKDEP_NOW_UNRELIABLE);
 	return 0;
 #else
@@ -1199,8 +1195,7 @@ static int check_version(Elf_Shdr *sechdrs,
 		goto bad_version;
 	}
 
-	printk(KERN_WARNING "%s: no symbol version for %s\n",
-	       mod->name, symname);
+	pr_warn("%s: no symbol version for %s\n", mod->name, symname);
 	return 0;
 
 bad_version:
@@ -1309,8 +1304,8 @@ resolve_symbol_wait(struct module *mod,
 			!IS_ERR(ksym = resolve_symbol(mod, info, name, owner))
 			|| PTR_ERR(ksym) != -EBUSY,
 					     30 * HZ) <= 0) {
-		printk(KERN_WARNING "%s: gave up waiting for init of module %s.\n",
-		       mod->name, owner);
+		pr_warn("%s: gave up waiting for init of module %s.\n",
+			mod->name, owner);
 	}
 	return ksym;
 }
@@ -1626,15 +1621,14 @@ static int mod_sysfs_init(struct module *mod)
 	struct kobject *kobj;
 
 	if (!module_sysfs_initialized) {
-		printk(KERN_ERR "%s: module sysfs not initialized\n",
-		       mod->name);
+		pr_err("%s: module sysfs not initialized\n", mod->name);
 		err = -EINVAL;
 		goto out;
 	}
 
 	kobj = kset_find_obj(module_kset, mod->name);
 	if (kobj) {
-		printk(KERN_ERR "%s: module is already loaded\n", mod->name);
+		pr_err("%s: module is already loaded\n", mod->name);
 		kobject_put(kobj);
 		err = -EINVAL;
 		goto out;
@@ -1961,8 +1955,7 @@ static int verify_export_symbols(struct module *mod)
 	for (i = 0; i < ARRAY_SIZE(arr); i++) {
 		for (s = arr[i].sym; s < arr[i].sym + arr[i].num; s++) {
 			if (find_symbol(s->name, &owner, NULL, true, false)) {
-				printk(KERN_ERR
-				       "%s: exports duplicate symbol %s"
+				pr_err("%s: exports duplicate symbol %s"
 				       " (owned by %s)\n",
 				       mod->name, s->name, module_name(owner));
 				return -ENOEXEC;
@@ -2013,8 +2006,8 @@ static int simplify_symbols(struct module *mod, const struct load_info *info)
 			if (!ksym && ELF_ST_BIND(sym[i].st_info) == STB_WEAK)
 				break;
 
-			printk(KERN_WARNING "%s: Unknown symbol %s (err %li)\n",
-			       mod->name, name, PTR_ERR(ksym));
+			pr_warn("%s: Unknown symbol %s (err %li)\n",
+				mod->name, name, PTR_ERR(ksym));
 			ret = PTR_ERR(ksym) ?: -ENOENT;
 			break;
 
@@ -2168,8 +2161,8 @@ static void set_license(struct module *mod, const char *license)
 
 	if (!license_is_gpl_compatible(license)) {
 		if (!test_taint(TAINT_PROPRIETARY_MODULE))
-			printk(KERN_WARNING "%s: module license '%s' taints "
-				"kernel.\n", mod->name, license);
+			pr_warn("%s: module license '%s' taints kernel.\n",
+				mod->name, license);
 		add_taint_module(mod, TAINT_PROPRIETARY_MODULE,
 				 LOCKDEP_NOW_UNRELIABLE);
 	}
@@ -2405,8 +2398,8 @@ static void dynamic_debug_setup(struct _ddebug *debug, unsigned int num)
 		return;
 #ifdef CONFIG_DYNAMIC_DEBUG
 	if (ddebug_add_module(debug, num, debug->modname))
-		printk(KERN_ERR "dynamic debug error adding module: %s\n",
-					debug->modname);
+		pr_err("dynamic debug error adding module: %s\n",
+			debug->modname);
 #endif
 }
 
@@ -2619,8 +2612,7 @@ static int rewrite_section_headers(struct load_info *info, int flags)
 		Elf_Shdr *shdr = &info->sechdrs[i];
 		if (shdr->sh_type != SHT_NOBITS
 		    && info->len < shdr->sh_offset + shdr->sh_size) {
-			printk(KERN_ERR "Module len %lu truncated\n",
-			       info->len);
+			pr_err("Module len %lu truncated\n", info->len);
 			return -ENOEXEC;
 		}
 
@@ -2682,15 +2674,14 @@ static struct module *setup_load_info(struct load_info *info, int flags)
 
 	info->index.mod = find_sec(info, ".gnu.linkonce.this_module");
 	if (!info->index.mod) {
-		printk(KERN_WARNING "No module found in object\n");
+		pr_warn("No module found in object\n");
 		return ERR_PTR(-ENOEXEC);
 	}
 	/* This is temporary: point mod into copy of data. */
 	mod = (void *)info->sechdrs[info->index.mod].sh_addr;
 
 	if (info->index.sym == 0) {
-		printk(KERN_WARNING "%s: module has no symbols (stripped?)\n",
-		       mod->name);
+		pr_warn("%s: module has no symbols (stripped?)\n", mod->name);
 		return ERR_PTR(-ENOEXEC);
 	}
 
@@ -2717,7 +2708,7 @@ static int check_modinfo(struct module *mod, struct load_info *info, int flags)
 		if (err)
 			return err;
 	} else if (!same_magic(modmagic, vermagic, info->index.vers)) {
-		printk(KERN_ERR "%s: version magic '%s' should be '%s'\n",
+		pr_err("%s: version magic '%s' should be '%s'\n",
 		       mod->name, modmagic, vermagic);
 		return -ENOEXEC;
 	}
@@ -2727,9 +2718,8 @@ static int check_modinfo(struct module *mod, struct load_info *info, int flags)
 
 	if (get_modinfo(info, "staging")) {
 		add_taint_module(mod, TAINT_CRAP, LOCKDEP_STILL_OK);
-		printk(KERN_WARNING "%s: module is from the staging directory,"
-		       " the quality is unknown, you have been warned.\n",
-		       mod->name);
+		pr_warn("%s: module is from the staging directory, the quality "
+			"is unknown, you have been warned.\n", mod->name);
 	}
 
 	/* Set up license info based on the info section */
@@ -2801,8 +2791,7 @@ static void find_module_sections(struct module *mod, struct load_info *info)
 				    sizeof(*mod->extable), &mod->num_exentries);
 
 	if (section_addr(info, "__obsparm"))
-		printk(KERN_WARNING "%s: Ignoring obsolete parameters\n",
-		       mod->name);
+		pr_warn("%s: Ignoring obsolete parameters\n", mod->name);
 
 	info->debug = section_objs(info, "__verbose",
 				   sizeof(*info->debug), &info->num_debug);
@@ -3078,11 +3067,10 @@ static int do_init_module(struct module *mod)
 		return ret;
 	}
 	if (ret > 0) {
-		printk(KERN_WARNING
-"%s: '%s'->init suspiciously returned %d, it should follow 0/-E convention\n"
-"%s: loading module anyway...\n",
-		       __func__, mod->name, ret,
-		       __func__);
+		pr_warn("%s: '%s'->init suspiciously returned %d, it should "
+			"follow 0/-E convention\n"
+			"%s: loading module anyway...\n",
+			__func__, mod->name, ret, __func__);
 		dump_stack();
 	}
 
@@ -3205,10 +3193,8 @@ static int unknown_module_param_cb(char *param, char *val, const char *modname)
 {
 	/* Check for magic 'dyndbg' arg */ 
 	int ret = ddebug_dyndbg_module_param_cb(param, val, modname);
-	if (ret != 0) {
-		printk(KERN_WARNING "%s: unknown parameter '%s' ignored\n",
-		       modname, param);
-	}
+	if (ret != 0)
+		pr_warn("%s: unknown parameter '%s' ignored\n", modname, param);
 	return 0;
 }
 
@@ -3243,10 +3229,9 @@ static int load_module(struct load_info *info, const char __user *uargs,
 #ifdef CONFIG_MODULE_SIG
 	mod->sig_ok = info->sig_ok;
 	if (!mod->sig_ok) {
-		printk_once(KERN_NOTICE
-			    "%s: module verification failed: signature and/or"
-			    " required key missing - tainting kernel\n",
-			    mod->name);
+		pr_notice_once("%s: module verification failed: signature "
+			       "and/or  required key missing - tainting "
+			       "kernel\n", mod->name);
 		add_taint_module(mod, TAINT_FORCED_MODULE, LOCKDEP_STILL_OK);
 	}
 #endif
-- 
cgit 


From a5ebb87508a48d7816a6897ed53419e46a507eb5 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Tue, 12 Nov 2013 15:11:29 -0800
Subject: kernel/gcov/fs.c: use pr_warn()

pr_warning() is deprecated in favor of pr_warn()

Cc: Andy Gospodarek <agospoda@redhat.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Frantisek Hrbata <fhrbata@redhat.com>
Cc: Jan Stancek <jstancek@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/gcov/fs.c | 34 +++++++++++++++++-----------------
 1 file changed, 17 insertions(+), 17 deletions(-)

diff --git a/kernel/gcov/fs.c b/kernel/gcov/fs.c
index b49dfce8e8a1..e892ad9ea065 100644
--- a/kernel/gcov/fs.c
+++ b/kernel/gcov/fs.c
@@ -75,7 +75,7 @@ static int __init gcov_persist_setup(char *str)
 	unsigned long val;
 
 	if (kstrtoul(str, 0, &val)) {
-		pr_warning("invalid gcov_persist parameter '%s'\n", str);
+		pr_warn("invalid gcov_persist parameter '%s'\n", str);
 		return 0;
 	}
 	gcov_persist = val;
@@ -451,7 +451,7 @@ static struct gcov_node *new_node(struct gcov_node *parent,
 	} else
 		node->dentry = debugfs_create_dir(node->name, parent->dentry);
 	if (!node->dentry) {
-		pr_warning("could not create file\n");
+		pr_warn("could not create file\n");
 		kfree(node);
 		return NULL;
 	}
@@ -464,7 +464,7 @@ static struct gcov_node *new_node(struct gcov_node *parent,
 
 err_nomem:
 	kfree(node);
-	pr_warning("out of memory\n");
+	pr_warn("out of memory\n");
 	return NULL;
 }
 
@@ -631,8 +631,8 @@ static void add_info(struct gcov_node *node, struct gcov_info *info)
 	 */
 	loaded_info = kcalloc(num + 1, sizeof(struct gcov_info *), GFP_KERNEL);
 	if (!loaded_info) {
-		pr_warning("could not add '%s' (out of memory)\n",
-			   gcov_info_filename(info));
+		pr_warn("could not add '%s' (out of memory)\n",
+			gcov_info_filename(info));
 		return;
 	}
 	memcpy(loaded_info, node->loaded_info,
@@ -645,9 +645,9 @@ static void add_info(struct gcov_node *node, struct gcov_info *info)
 		 * data set replaces the copy of the last one.
 		 */
 		if (!gcov_info_is_compatible(node->unloaded_info, info)) {
-			pr_warning("discarding saved data for %s "
-				   "(incompatible version)\n",
-				   gcov_info_filename(info));
+			pr_warn("discarding saved data for %s "
+				"(incompatible version)\n",
+				gcov_info_filename(info));
 			gcov_info_free(node->unloaded_info);
 			node->unloaded_info = NULL;
 		}
@@ -657,8 +657,8 @@ static void add_info(struct gcov_node *node, struct gcov_info *info)
 		 * The initial one takes precedence.
 		 */
 		if (!gcov_info_is_compatible(node->loaded_info[0], info)) {
-			pr_warning("could not add '%s' (incompatible "
-				   "version)\n", gcov_info_filename(info));
+			pr_warn("could not add '%s' (incompatible "
+				"version)\n", gcov_info_filename(info));
 			kfree(loaded_info);
 			return;
 		}
@@ -693,9 +693,9 @@ static void save_info(struct gcov_node *node, struct gcov_info *info)
 	else {
 		node->unloaded_info = gcov_info_dup(info);
 		if (!node->unloaded_info) {
-			pr_warning("could not save data for '%s' "
-				   "(out of memory)\n",
-				   gcov_info_filename(info));
+			pr_warn("could not save data for '%s' "
+				"(out of memory)\n",
+				gcov_info_filename(info));
 		}
 	}
 }
@@ -710,8 +710,8 @@ static void remove_info(struct gcov_node *node, struct gcov_info *info)
 
 	i = get_info_index(node, info);
 	if (i < 0) {
-		pr_warning("could not remove '%s' (not found)\n",
-			   gcov_info_filename(info));
+		pr_warn("could not remove '%s' (not found)\n",
+			gcov_info_filename(info));
 		return;
 	}
 	if (gcov_persist)
@@ -750,8 +750,8 @@ void gcov_event(enum gcov_action action, struct gcov_info *info)
 		if (node)
 			remove_info(node, info);
 		else {
-			pr_warning("could not remove '%s' (not found)\n",
-				   gcov_info_filename(info));
+			pr_warn("could not remove '%s' (not found)\n",
+				gcov_info_filename(info));
 		}
 		break;
 	}
-- 
cgit 


From 1931d433d7a641e6a366854566ab1207a32972a6 Mon Sep 17 00:00:00 2001
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: Tue, 12 Nov 2013 15:11:31 -0800
Subject: gcov: reuse kbasename helper

To get name of the file from a pathname let's use kbasename() helper.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/gcov/fs.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/kernel/gcov/fs.c b/kernel/gcov/fs.c
index e892ad9ea065..15ff01a76379 100644
--- a/kernel/gcov/fs.c
+++ b/kernel/gcov/fs.c
@@ -365,7 +365,7 @@ static const char *deskew(const char *basename)
  */
 static void add_links(struct gcov_node *node, struct dentry *parent)
 {
-	char *basename;
+	const char *basename;
 	char *target;
 	int num;
 	int i;
@@ -381,10 +381,9 @@ static void add_links(struct gcov_node *node, struct dentry *parent)
 				&gcov_link[i]);
 		if (!target)
 			goto out_err;
-		basename = strrchr(target, '/');
-		if (!basename)
+		basename = kbasename(target);
+		if (basename == target)
 			goto out_err;
-		basename++;
 		node->links[i] = debugfs_create_symlink(deskew(basename),
 							parent,	target);
 		if (!node->links[i])
-- 
cgit 


From 01284764713b02be23e72338227ce536c740399a Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Tue, 12 Nov 2013 15:11:32 -0800
Subject: kernel/panic.c: reduce 1 byte usage for print tainted buffer

sizeof("Tainted: ") already counts '\0', and after first sprintf(), 's'
will start from the current string end (its' value is '\0').

So need not add additional 1 byte for maximized usage of 'buf' in
print_tainted().

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/panic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/panic.c b/kernel/panic.c
index b6c482ccc5db..c00b4ceb39e8 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -233,7 +233,7 @@ static const struct tnt tnts[] = {
  */
 const char *print_tainted(void)
 {
-	static char buf[ARRAY_SIZE(tnts) + sizeof("Tainted: ") + 1];
+	static char buf[ARRAY_SIZE(tnts) + sizeof("Tainted: ")];
 
 	if (tainted_mask) {
 		char *s;
-- 
cgit 


From 1a10bd9424d463e550676e74f4875863d1bae3f5 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Tue, 12 Nov 2013 15:11:33 -0800
Subject: drivers/pps/clients/pps-gpio.c: remove redundant of_match_ptr

The data structure of_match_ptr() protects is always compiled in.  Hence
of_match_ptr() is not needed.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Cc: Rodolfo Giometti <giometti@enneenne.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/pps/clients/pps-gpio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pps/clients/pps-gpio.c b/drivers/pps/clients/pps-gpio.c
index 9966124ad988..f41bacfdc3dc 100644
--- a/drivers/pps/clients/pps-gpio.c
+++ b/drivers/pps/clients/pps-gpio.c
@@ -201,7 +201,7 @@ static struct platform_driver pps_gpio_driver = {
 	.driver		= {
 		.name	= PPS_GPIO_NAME,
 		.owner	= THIS_MODULE,
-		.of_match_table	= of_match_ptr(pps_gpio_dt_ids),
+		.of_match_table	= pps_gpio_dt_ids,
 	},
 };
 
-- 
cgit 


From be2d3f97e90cdf9f1523daaba705f320c3efaf00 Mon Sep 17 00:00:00 2001
From: Michal Nazarewicz <mina86@mina86.com>
Date: Tue, 12 Nov 2013 15:11:39 -0800
Subject: drivers/memstick/core/mspro_block.c: fix attributes array allocation

attrs field of attribute_group structure is a pointer to a pointer (as in
an array of pointers) rather than pointer to attribute struct (as in an
array of structures), so when allocating size of the pointer sholud be
used instead of the structure it is pointing to.

While at it, also change the call to use kcalloc rather than kzalloc.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Alex Dubov <oakad@yahoo.com>
Cc: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/memstick/core/mspro_block.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c
index f4176ca3a794..fc145d202c46 100644
--- a/drivers/memstick/core/mspro_block.c
+++ b/drivers/memstick/core/mspro_block.c
@@ -1023,8 +1023,8 @@ static int mspro_block_read_attributes(struct memstick_dev *card)
 	} else
 		attr_count = attr->count;
 
-	msb->attr_group.attrs = kzalloc((attr_count + 1)
-					* sizeof(struct attribute),
+	msb->attr_group.attrs = kcalloc(attr_count + 1,
+					sizeof(*msb->attr_group.attrs),
 					GFP_KERNEL);
 	if (!msb->attr_group.attrs) {
 		rc = -ENOMEM;
-- 
cgit 


From a0e5a12fd18d47aa87a7a8c60ca5bc422b136564 Mon Sep 17 00:00:00 2001
From: Roger Tseng <rogerable@realtek.com>
Date: Tue, 12 Nov 2013 15:11:40 -0800
Subject: drivers/memstick/core/ms_block.c: fix unreachable state in
 h_msb_read_page()

In h_msb_read_page() in ms_block.c, flow never reaches case
MSB_RP_RECIVE_STATUS_REG.  This causes error when MEMSTICK_INT_ERR is
encountered and status error bits are going to be examined, but the status
will never be copied back.

Fix it by transitioning to MSB_RP_RECIVE_STATUS_REG right after
MSB_RP_SEND_READ_STATUS_REG.

Signed-off-by: Roger Tseng <rogerable@realtek.com>
Acked-by: Maxim Levitsky <maximlevitsky@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/memstick/core/ms_block.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/memstick/core/ms_block.c b/drivers/memstick/core/ms_block.c
index 08e70232062f..9188ef5d677e 100644
--- a/drivers/memstick/core/ms_block.c
+++ b/drivers/memstick/core/ms_block.c
@@ -401,7 +401,7 @@ again:
 			sizeof(struct ms_status_register)))
 			return 0;
 
-		msb->state = MSB_RP_RECEIVE_OOB_READ;
+		msb->state = MSB_RP_RECIVE_STATUS_REG;
 		return 0;
 
 	case MSB_RP_RECIVE_STATUS_REG:
-- 
cgit 


From 75f9e937d24fdf661ebd5c9bed05caa4aad90539 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 12 Nov 2013 15:11:41 -0800
Subject: drivers/w1/masters/ds1wm.cuse dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.  This is a cosmetic change to make
the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/w1/masters/ds1wm.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/w1/masters/ds1wm.c b/drivers/w1/masters/ds1wm.c
index 41613f92a723..02df3b1381d2 100644
--- a/drivers/w1/masters/ds1wm.c
+++ b/drivers/w1/masters/ds1wm.c
@@ -255,17 +255,17 @@ static int ds1wm_find_divisor(int gclk)
 static void ds1wm_up(struct ds1wm_data *ds1wm_data)
 {
 	int divisor;
-	struct ds1wm_driver_data *plat = ds1wm_data->pdev->dev.platform_data;
+	struct device *dev = &ds1wm_data->pdev->dev;
+	struct ds1wm_driver_data *plat = dev_get_platdata(dev);
 
 	if (ds1wm_data->cell->enable)
 		ds1wm_data->cell->enable(ds1wm_data->pdev);
 
 	divisor = ds1wm_find_divisor(plat->clock_rate);
-	dev_dbg(&ds1wm_data->pdev->dev,
-		"found divisor 0x%x for clock %d\n", divisor, plat->clock_rate);
+	dev_dbg(dev, "found divisor 0x%x for clock %d\n",
+		divisor, plat->clock_rate);
 	if (divisor == 0) {
-		dev_err(&ds1wm_data->pdev->dev,
-			"no suitable divisor for %dHz clock\n",
+		dev_err(dev, "no suitable divisor for %dHz clock\n",
 			plat->clock_rate);
 		return;
 	}
@@ -481,7 +481,7 @@ static int ds1wm_probe(struct platform_device *pdev)
 	ds1wm_data->cell = mfd_get_cell(pdev);
 	if (!ds1wm_data->cell)
 		return -ENODEV;
-	plat = pdev->dev.platform_data;
+	plat = dev_get_platdata(&pdev->dev);
 	if (!plat)
 		return -ENODEV;
 
-- 
cgit 


From bb67093796a41e0f2601f5c0022fd8873ed59fee Mon Sep 17 00:00:00 2001
From: Michal Nazarewicz <mina86@mina86.com>
Date: Tue, 12 Nov 2013 15:11:42 -0800
Subject: drivers: w1: make w1_slave::flags long to avoid memory corruption

On architectures where long is more then 32 bits, modifying a 32-bit field
with set_bit (and other atomic bit operations) may cause bytes following
the field to by modified.

Because the endianness of the bits within a field is the native endianness
of the CPU[1], on big-endian machines, bit number zero is in the last byte
of the field.

Therefore, `set_bit(0, ptr)' on a 64-bit big-endian machine is roughly
equivalent to `((char *)ptr)[7] |= 1', and since w1 driver uses a 32-bit
field for holding the flags, this causes bytes beyond the field to be
modified.

[1] From Documentation/atomic_ops.txt:

    Native atomic bit operations are defined to operate on objects
    aligned to the size of an "unsigned long" C data type, and are
    least of that size.  The endianness of the bits within each
    "unsigned long" are the native endianness of the cpu.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Cc: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/w1/w1.c | 10 +++++-----
 drivers/w1/w1.h |  2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index fa932c2f7d97..66efa96c4603 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -709,7 +709,7 @@ static int w1_attach_slave_device(struct w1_master *dev, struct w1_reg_num *rn)
 
 	sl->owner = THIS_MODULE;
 	sl->master = dev;
-	set_bit(W1_SLAVE_ACTIVE, (long *)&sl->flags);
+	set_bit(W1_SLAVE_ACTIVE, &sl->flags);
 
 	memset(&msg, 0, sizeof(msg));
 	memcpy(&sl->reg_num, rn, sizeof(sl->reg_num));
@@ -866,7 +866,7 @@ void w1_slave_found(struct w1_master *dev, u64 rn)
 
 	sl = w1_slave_search_device(dev, tmp);
 	if (sl) {
-		set_bit(W1_SLAVE_ACTIVE, (long *)&sl->flags);
+		set_bit(W1_SLAVE_ACTIVE, &sl->flags);
 	} else {
 		if (rn && tmp->crc == w1_calc_crc8((u8 *)&rn_le, 7))
 			w1_attach_slave_device(dev, tmp);
@@ -984,14 +984,14 @@ void w1_search_process_cb(struct w1_master *dev, u8 search_type,
 	struct w1_slave *sl, *sln;
 
 	list_for_each_entry(sl, &dev->slist, w1_slave_entry)
-		clear_bit(W1_SLAVE_ACTIVE, (long *)&sl->flags);
+		clear_bit(W1_SLAVE_ACTIVE, &sl->flags);
 
 	w1_search_devices(dev, search_type, cb);
 
 	list_for_each_entry_safe(sl, sln, &dev->slist, w1_slave_entry) {
-		if (!test_bit(W1_SLAVE_ACTIVE, (unsigned long *)&sl->flags) && !--sl->ttl)
+		if (!test_bit(W1_SLAVE_ACTIVE, &sl->flags) && !--sl->ttl)
 			w1_slave_detach(sl);
-		else if (test_bit(W1_SLAVE_ACTIVE, (unsigned long *)&sl->flags))
+		else if (test_bit(W1_SLAVE_ACTIVE, &sl->flags))
 			sl->ttl = dev->slave_ttl;
 	}
 
diff --git a/drivers/w1/w1.h b/drivers/w1/w1.h
index 45908e56c2f8..ca8081a101d6 100644
--- a/drivers/w1/w1.h
+++ b/drivers/w1/w1.h
@@ -67,8 +67,8 @@ struct w1_slave
 	struct w1_reg_num	reg_num;
 	atomic_t		refcnt;
 	u8			rom[9];
-	u32			flags;
 	int			ttl;
+	unsigned long		flags;
 
 	struct w1_master	*master;
 	struct w1_family	*family;
-- 
cgit 


From 69f0554ec261fd686ac7fa1c598cc9eb27b83a80 Mon Sep 17 00:00:00 2001
From: Christian Ruppert <christian.ruppert@abilis.com>
Date: Tue, 12 Nov 2013 15:11:43 -0800
Subject: init/Kconfig: add option to disable kernel compression

Some ARC users say they can boot faster with without kernel compression.
This probably depends on things like the FLASH chip they use etc.

Until now, kernel compression can only be disabled by removing "select
HAVE_<compression>" lines from the architecture Kconfig.  So add the
Kconfig logic to permit disabling of kernel compression.

Signed-off-by: Christian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 init/Kconfig | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/init/Kconfig b/init/Kconfig
index bc8911fab28e..5496f307988e 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -118,7 +118,6 @@ config HAVE_KERNEL_LZ4
 choice
 	prompt "Kernel compression mode"
 	default KERNEL_GZIP
-	depends on HAVE_KERNEL_GZIP || HAVE_KERNEL_BZIP2 || HAVE_KERNEL_LZMA || HAVE_KERNEL_XZ || HAVE_KERNEL_LZO || HAVE_KERNEL_LZ4
 	help
 	  The linux kernel is a kind of self-extracting executable.
 	  Several compression algorithms are available, which differ
@@ -137,6 +136,13 @@ choice
 
 	  If in doubt, select 'gzip'
 
+config KERNEL_UNCOMPRESSED
+	bool "No compression"
+	help
+	  No compression at all. The kernel is huge but the compression and
+	  decompression times are zero.
+	  This is usually not what you want.
+
 config KERNEL_GZIP
 	bool "Gzip"
 	depends on HAVE_KERNEL_GZIP
-- 
cgit 


From 1bf49dd4be0b000030c6f04c4a16a17d9affdbd3 Mon Sep 17 00:00:00 2001
From: P J P <ppandit@redhat.com>
Date: Tue, 12 Nov 2013 15:11:44 -0800
Subject: ./Makefile: export initial ramdisk compression config option

Make menuconfig allows one to choose compression format of an initial
ramdisk image.  But this choice does not result in duly compressed ramdisk
image.  Because - $ make install - does not pass on the selected
compression choice to the dracut(8) tool, which creates the initramfs
file.  dracut(8) generates the image with the default compression, ie.
gzip(1).

This patch exports the selected compression option to a sub-shell
environment, so that it could be used by dracut(8) tool to generate
appropriately compressed initramfs images.

There isn't a straightforward way to pass on options to dracut(8) via
positional parameters.  Because it is indirectly invoked at the end of a $
make install sequence.

 # make install
   -> arch/$arch/boot/Makefile
    -> arch/$arch/boot/install.sh
     -> /sbing/installkernel ...
      -> /sbin/new-kernel-pkg ...
       -> /sbin/dracut ...

Signed-off-by: P J P <ppandit@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Makefile            | 16 ++++++++++++++++
 init/do_mounts_rd.c |  5 +++++
 2 files changed, 21 insertions(+)

diff --git a/Makefile b/Makefile
index 67077ad6edbb..606a66cdcdb8 100644
--- a/Makefile
+++ b/Makefile
@@ -720,6 +720,22 @@ mod_strip_cmd = true
 endif # INSTALL_MOD_STRIP
 export mod_strip_cmd
 
+# Select initial ramdisk compression format, default is gzip(1).
+# This shall be used by the dracut(8) tool while creating an initramfs image.
+#
+INITRD_COMPRESS=gzip
+ifeq ($(CONFIG_RD_BZIP2), y)
+        INITRD_COMPRESS=bzip2
+else ifeq ($(CONFIG_RD_LZMA), y)
+        INITRD_COMPRESS=lzma
+else ifeq ($(CONFIG_RD_XZ), y)
+        INITRD_COMPRESS=xz
+else ifeq ($(CONFIG_RD_LZO), y)
+        INITRD_COMPRESS=lzo
+else ifeq ($(CONFIG_RD_LZ4), y)
+        INITRD_COMPRESS=lz4
+endif
+export INITRD_COMPRESS
 
 ifdef CONFIG_MODULE_SIG_ALL
 MODSECKEY = ./signing_key.priv
diff --git a/init/do_mounts_rd.c b/init/do_mounts_rd.c
index 143e98de6f29..7c098ac9068a 100644
--- a/init/do_mounts_rd.c
+++ b/init/do_mounts_rd.c
@@ -57,6 +57,11 @@ static int __init crd_load(int in_fd, int out_fd, decompress_fn deco);
  *	cramfs
  *	squashfs
  *	gzip
+ *	bzip2
+ *	lzma
+ *	xz
+ *	lzo
+ *	lz4
  */
 static int __init
 identify_ramdisk_image(int fd, int start_block, decompress_fn *decompressor)
-- 
cgit 


From 66da0e1f9034140ae2f571ef96e254a25083906c Mon Sep 17 00:00:00 2001
From: Ilija Hadzic <ihadzic@research.bell-labs.com>
Date: Tue, 12 Nov 2013 15:11:45 -0800
Subject: devpts: plug the memory leak in kill_sb

When devpts is unmounted, there may be a no-longer-used IDR tree hanging
off the superblock we are about to kill.  This needs to be cleaned up
before destroying the SB.

The leak is usually not a big deal because unmounting devpts is typically
done when shutting down the whole machine.  However, shutting down an LXC
container instead of a physical machine exposes the problem (the garbage
is detectable with kmemleak).

Signed-off-by: Ilija Hadzic <ihadzic@research.bell-labs.com>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/devpts/inode.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index 073d30b9d1ac..a726b9f29cb7 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -498,6 +498,7 @@ static void devpts_kill_sb(struct super_block *sb)
 {
 	struct pts_fs_info *fsi = DEVPTS_SB(sb);
 
+	ida_destroy(&fsi->allocated_ptys);
 	kfree(fsi);
 	kill_litter_super(sb);
 }
-- 
cgit 


From 206fa940977260ede421151aae067e2509356116 Mon Sep 17 00:00:00 2001
From: Xie XiuQi <xiexiuqi@huawei.com>
Date: Tue, 12 Nov 2013 15:11:46 -0800
Subject: ipc/util.c: remove unnecessary work pending test

Remove unnecessary work pending test before calling schedule_work().  It
has been tested in queue_work_on() already.  No functional changed.

Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Cc: Tejun Heo <tj@kernel.org>
Reviewed-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 ipc/util.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/ipc/util.c b/ipc/util.c
index 7684f41bce76..3ae17a4ace5b 100644
--- a/ipc/util.c
+++ b/ipc/util.c
@@ -90,10 +90,8 @@ static int ipc_memory_callback(struct notifier_block *self,
 		 * In order not to keep the lock on the hotplug memory chain
 		 * for too long, queue a work item that will, when waken up,
 		 * activate the ipcns notification chain.
-		 * No need to keep several ipc work items on the queue.
 		 */
-		if (!work_pending(&ipc_memory_wq))
-			schedule_work(&ipc_memory_wq);
+		schedule_work(&ipc_memory_wq);
 		break;
 	case MEM_GOING_ONLINE:
 	case MEM_GOING_OFFLINE:
-- 
cgit 


From 4e9b45a19241354daec281d7a785739829b52359 Mon Sep 17 00:00:00 2001
From: Mathias Krause <minipli@googlemail.com>
Date: Tue, 12 Nov 2013 15:11:47 -0800
Subject: ipc, msg: fix message length check for negative values

On 64 bit systems the test for negative message sizes is bogus as the
size, which may be positive when evaluated as a long, will get truncated
to an int when passed to load_msg().  So a long might very well contain a
positive value but when truncated to an int it would become negative.

That in combination with a small negative value of msg_ctlmax (which will
be promoted to an unsigned type for the comparison against msgsz, making
it a big positive value and therefore make it pass the check) will lead to
two problems: 1/ The kmalloc() call in alloc_msg() will allocate a too
small buffer as the addition of alen is effectively a subtraction.  2/ The
copy_from_user() call in load_msg() will first overflow the buffer with
userland data and then, when the userland access generates an access
violation, the fixup handler copy_user_handle_tail() will try to fill the
remainder with zeros -- roughly 4GB.  That almost instantly results in a
system crash or reset.

  ,-[ Reproducer (needs to be run as root) ]--
  | #include <sys/stat.h>
  | #include <sys/msg.h>
  | #include <unistd.h>
  | #include <fcntl.h>
  |
  | int main(void) {
  |     long msg = 1;
  |     int fd;
  |
  |     fd = open("/proc/sys/kernel/msgmax", O_WRONLY);
  |     write(fd, "-1", 2);
  |     close(fd);
  |
  |     msgsnd(0, &msg, 0xfffffff0, IPC_NOWAIT);
  |
  |     return 0;
  | }
  '---

Fix the issue by preventing msgsz from getting truncated by consistently
using size_t for the message length.  This way the size checks in
do_msgsnd() could still be passed with a negative value for msg_ctlmax but
we would fail on the buffer allocation in that case and error out.

Also change the type of m_ts from int to size_t to avoid similar nastiness
in other code paths -- it is used in similar constructs, i.e.  signed vs.
unsigned checks.  It should never become negative under normal
circumstances, though.

Setting msg_ctlmax to a negative value is an odd configuration and should
be prevented.  As that might break existing userland, it will be handled
in a separate commit so it could easily be reverted and reworked without
reintroducing the above described bug.

Hardening mechanisms for user copy operations would have catched that bug
early -- e.g.  checking slab object sizes on user copy operations as the
usercopy feature of the PaX patch does.  Or, for that matter, detect the
long vs.  int sign change due to truncation, as the size overflow plugin
of the very same patch does.

[akpm@linux-foundation.org: fix i386 min() warnings]
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Cc: Pax Team <pageexec@freemail.hu>
Cc: Davidlohr Bueso <davidlohr@hp.com>
Cc: Brad Spengler <spender@grsecurity.net>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: <stable@vger.kernel.org>	[ v2.3.27+ -- yes, that old ;) ]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/msg.h |  6 +++---
 ipc/msgutil.c       | 20 ++++++++++----------
 ipc/util.h          |  4 ++--
 3 files changed, 15 insertions(+), 15 deletions(-)

diff --git a/include/linux/msg.h b/include/linux/msg.h
index 391af8d11cce..e21f9d44307f 100644
--- a/include/linux/msg.h
+++ b/include/linux/msg.h
@@ -6,9 +6,9 @@
 
 /* one msg_msg structure for each message */
 struct msg_msg {
-	struct list_head m_list; 
-	long  m_type;          
-	int m_ts;           /* message text size */
+	struct list_head m_list;
+	long m_type;
+	size_t m_ts;		/* message text size */
 	struct msg_msgseg* next;
 	void *security;
 	/* the actual message follows immediately */
diff --git a/ipc/msgutil.c b/ipc/msgutil.c
index 491e71f2a1b8..7e7095974d54 100644
--- a/ipc/msgutil.c
+++ b/ipc/msgutil.c
@@ -41,15 +41,15 @@ struct msg_msgseg {
 	/* the next part of the message follows immediately */
 };
 
-#define DATALEN_MSG	(int)(PAGE_SIZE-sizeof(struct msg_msg))
-#define DATALEN_SEG	(int)(PAGE_SIZE-sizeof(struct msg_msgseg))
+#define DATALEN_MSG	((size_t)PAGE_SIZE-sizeof(struct msg_msg))
+#define DATALEN_SEG	((size_t)PAGE_SIZE-sizeof(struct msg_msgseg))
 
 
-static struct msg_msg *alloc_msg(int len)
+static struct msg_msg *alloc_msg(size_t len)
 {
 	struct msg_msg *msg;
 	struct msg_msgseg **pseg;
-	int alen;
+	size_t alen;
 
 	alen = min(len, DATALEN_MSG);
 	msg = kmalloc(sizeof(*msg) + alen, GFP_KERNEL);
@@ -80,12 +80,12 @@ out_err:
 	return NULL;
 }
 
-struct msg_msg *load_msg(const void __user *src, int len)
+struct msg_msg *load_msg(const void __user *src, size_t len)
 {
 	struct msg_msg *msg;
 	struct msg_msgseg *seg;
 	int err = -EFAULT;
-	int alen;
+	size_t alen;
 
 	msg = alloc_msg(len);
 	if (msg == NULL)
@@ -117,8 +117,8 @@ out_err:
 struct msg_msg *copy_msg(struct msg_msg *src, struct msg_msg *dst)
 {
 	struct msg_msgseg *dst_pseg, *src_pseg;
-	int len = src->m_ts;
-	int alen;
+	size_t len = src->m_ts;
+	size_t alen;
 
 	BUG_ON(dst == NULL);
 	if (src->m_ts > dst->m_ts)
@@ -147,9 +147,9 @@ struct msg_msg *copy_msg(struct msg_msg *src, struct msg_msg *dst)
 	return ERR_PTR(-ENOSYS);
 }
 #endif
-int store_msg(void __user *dest, struct msg_msg *msg, int len)
+int store_msg(void __user *dest, struct msg_msg *msg, size_t len)
 {
-	int alen;
+	size_t alen;
 	struct msg_msgseg *seg;
 
 	alen = min(len, DATALEN_MSG);
diff --git a/ipc/util.h b/ipc/util.h
index f2f5036f2eed..59d78aa94987 100644
--- a/ipc/util.h
+++ b/ipc/util.h
@@ -148,9 +148,9 @@ int ipc_parse_version (int *cmd);
 #endif
 
 extern void free_msg(struct msg_msg *msg);
-extern struct msg_msg *load_msg(const void __user *src, int len);
+extern struct msg_msg *load_msg(const void __user *src, size_t len);
 extern struct msg_msg *copy_msg(struct msg_msg *src, struct msg_msg *dst);
-extern int store_msg(void __user *dest, struct msg_msg *msg, int len);
+extern int store_msg(void __user *dest, struct msg_msg *msg, size_t len);
 
 extern void recompute_msgmni(struct ipc_namespace *);
 
-- 
cgit 


From ec0b380245d7b7d4d8e4201facca780a14352cda Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Thu, 31 Oct 2013 17:05:50 +1100
Subject: twl4030_charger: Add devicetree support

This allows the charger to be enabled with devicetree, and allows the
parameters for charging the backup battery to be set.

Signed-off-by: NeilBrown <neilb@suse.de>
Acked-by: Kumar Gala <galak@codeaurora.org>
Acked-by: Grant Likely <grant.likely@linaro.org>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
---
 .../devicetree/bindings/power/twl-charger.txt      | 20 +++++++++
 arch/arm/boot/dts/twl4030.dtsi                     |  6 +++
 drivers/power/twl4030_charger.c                    | 47 ++++++++++++++++++++--
 3 files changed, 70 insertions(+), 3 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/power/twl-charger.txt

diff --git a/Documentation/devicetree/bindings/power/twl-charger.txt b/Documentation/devicetree/bindings/power/twl-charger.txt
new file mode 100644
index 000000000000..d5c706216df5
--- /dev/null
+++ b/Documentation/devicetree/bindings/power/twl-charger.txt
@@ -0,0 +1,20 @@
+TWL BCI (Battery Charger Interface)
+
+Required properties:
+- compatible:
+  - "ti,twl4030-bci"
+- interrupts: two interrupt lines from the TWL SIH (secondary
+  interrupt handler) - interrupts 9 and 2.
+
+Optional properties:
+- ti,bb-uvolt: microvolts for charging the backup battery.
+- ti,bb-uamp: microamps for charging the backup battery.
+
+Examples:
+
+bci {
+   compatible = "ti,twl4030-bci";
+   interrupts = <9>, <2>;
+   ti,bb-uvolt = <3200000>;
+   ti,bb-uamp = <150>;
+};
diff --git a/arch/arm/boot/dts/twl4030.dtsi b/arch/arm/boot/dts/twl4030.dtsi
index ae6a17aed9ee..5a12540b1d0f 100644
--- a/arch/arm/boot/dts/twl4030.dtsi
+++ b/arch/arm/boot/dts/twl4030.dtsi
@@ -19,6 +19,12 @@
 		interrupts = <11>;
 	};
 
+	charger: bci {
+		compatible = "ti,twl4030-bci";
+		interrupts = <9>, <2>;
+		bci3v1-supply = <&vusb3v1>;
+	};
+
 	watchdog {
 		compatible = "ti,twl4030-wdt";
 	};
diff --git a/drivers/power/twl4030_charger.c b/drivers/power/twl4030_charger.c
index d98abe911e37..f14108844e1a 100644
--- a/drivers/power/twl4030_charger.c
+++ b/drivers/power/twl4030_charger.c
@@ -495,10 +495,38 @@ static enum power_supply_property twl4030_charger_props[] = {
 	POWER_SUPPLY_PROP_CURRENT_NOW,
 };
 
+#ifdef CONFIG_OF
+static const struct twl4030_bci_platform_data *
+twl4030_bci_parse_dt(struct device *dev)
+{
+	struct device_node *np = dev->of_node;
+	struct twl4030_bci_platform_data *pdata;
+	u32 num;
+
+	if (!np)
+		return NULL;
+	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return pdata;
+
+	if (of_property_read_u32(np, "ti,bb-uvolt", &num) == 0)
+		pdata->bb_uvolt = num;
+	if (of_property_read_u32(np, "ti,bb-uamp", &num) == 0)
+		pdata->bb_uamp = num;
+	return pdata;
+}
+#else
+static inline const struct twl4030_bci_platform_data *
+twl4030_bci_parse_dt(struct device *dev)
+{
+	return NULL;
+}
+#endif
+
 static int __init twl4030_bci_probe(struct platform_device *pdev)
 {
 	struct twl4030_bci *bci;
-	struct twl4030_bci_platform_data *pdata = pdev->dev.platform_data;
+	const struct twl4030_bci_platform_data *pdata = pdev->dev.platform_data;
 	int ret;
 	u32 reg;
 
@@ -506,6 +534,9 @@ static int __init twl4030_bci_probe(struct platform_device *pdev)
 	if (bci == NULL)
 		return -ENOMEM;
 
+	if (!pdata)
+		pdata = twl4030_bci_parse_dt(&pdev->dev);
+
 	bci->dev = &pdev->dev;
 	bci->irq_chg = platform_get_irq(pdev, 0);
 	bci->irq_bci = platform_get_irq(pdev, 1);
@@ -581,8 +612,11 @@ static int __init twl4030_bci_probe(struct platform_device *pdev)
 
 	twl4030_charger_enable_ac(true);
 	twl4030_charger_enable_usb(bci, true);
-	twl4030_charger_enable_backup(pdata->bb_uvolt,
-				      pdata->bb_uamp);
+	if (pdata)
+		twl4030_charger_enable_backup(pdata->bb_uvolt,
+					      pdata->bb_uamp);
+	else
+		twl4030_charger_enable_backup(0, 0);
 
 	return 0;
 
@@ -631,10 +665,17 @@ static int __exit twl4030_bci_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static const struct of_device_id twl_bci_of_match[] = {
+	{.compatible = "ti,twl4030-bci", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, twl_bci_of_match);
+
 static struct platform_driver twl4030_bci_driver = {
 	.driver	= {
 		.name	= "twl4030_bci",
 		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(twl_bci_of_match),
 	},
 	.remove	= __exit_p(twl4030_bci_remove),
 };
-- 
cgit 


From c8024234c20eaf7b163cc4dbd963cb9cd03a4ff1 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 7 Nov 2013 11:06:17 +0300
Subject: pm2301-charger: Remove unneeded NULL checks

If "pm2" were NULL we would oops printing the error message.
Fortunately, that's not possible so I have removed the NULL checks.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Anton Vorontsov <anton@enomsg.org>
---
 drivers/power/pm2301_charger.c | 17 ++---------------
 1 file changed, 2 insertions(+), 15 deletions(-)

diff --git a/drivers/power/pm2301_charger.c b/drivers/power/pm2301_charger.c
index b733c692a17f..62c15af58c9a 100644
--- a/drivers/power/pm2301_charger.c
+++ b/drivers/power/pm2301_charger.c
@@ -957,37 +957,24 @@ static int  pm2xxx_runtime_suspend(struct device *dev)
 {
 	struct i2c_client *pm2xxx_i2c_client = to_i2c_client(dev);
 	struct pm2xxx_charger *pm2;
-	int ret = 0;
 
 	pm2 = (struct pm2xxx_charger *)i2c_get_clientdata(pm2xxx_i2c_client);
-	if (!pm2) {
-		dev_err(pm2->dev, "no pm2xxx_charger data supplied\n");
-		ret = -EINVAL;
-		return ret;
-	}
-
 	clear_lpn_pin(pm2);
 
-	return ret;
+	return 0;
 }
 
 static int  pm2xxx_runtime_resume(struct device *dev)
 {
 	struct i2c_client *pm2xxx_i2c_client = to_i2c_client(dev);
 	struct pm2xxx_charger *pm2;
-	int ret = 0;
 
 	pm2 = (struct pm2xxx_charger *)i2c_get_clientdata(pm2xxx_i2c_client);
-	if (!pm2) {
-		dev_err(pm2->dev, "no pm2xxx_charger data supplied\n");
-		ret = -EINVAL;
-		return ret;
-	}
 
 	if (gpio_is_valid(pm2->lpn_pin) && gpio_get_value(pm2->lpn_pin) == 0)
 		set_lpn_pin(pm2);
 
-	return ret;
+	return 0;
 }
 
 #endif
-- 
cgit 


From 11b3fdacbac0df6a3531e2b63c876e8442cea2a8 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 13 Nov 2013 10:45:20 +0300
Subject: ALSA: snd-aoa: two copy and paste bugs

These functions were cut and paste and the tests for NULL weren't
updated properly.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/aoa/fabrics/layout.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/aoa/fabrics/layout.c b/sound/aoa/fabrics/layout.c
index 61ab640e195f..9dc5806d23dd 100644
--- a/sound/aoa/fabrics/layout.c
+++ b/sound/aoa/fabrics/layout.c
@@ -644,7 +644,7 @@ static int n##_control_put(struct snd_kcontrol *kcontrol,		\
 			   struct snd_ctl_elem_value *ucontrol)		\
 {									\
 	struct gpio_runtime *gpio = snd_kcontrol_chip(kcontrol);	\
-	if (gpio->methods && gpio->methods->get_##n)			\
+	if (gpio->methods && gpio->methods->set_##n)			\
 		gpio->methods->set_##n(gpio,				\
 			!!ucontrol->value.integer.value[0]);		\
 	return 1;							\
@@ -1135,7 +1135,7 @@ static int aoa_fabric_layout_resume(struct soundbus_dev *sdev)
 {
 	struct layout_dev *ldev = dev_get_drvdata(&sdev->ofdev.dev);
 
-	if (ldev->gpio.methods && ldev->gpio.methods->all_amps_off)
+	if (ldev->gpio.methods && ldev->gpio.methods->all_amps_restore)
 		ldev->gpio.methods->all_amps_restore(&ldev->gpio);
 
 	return 0;
-- 
cgit 


From 8ede6651066a81c15fba3c0c7c942aa6f9614091 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 13 Nov 2013 10:58:38 +0300
Subject: ALSA: isa: not allocating enough space

We allocate only 4 bytes here "sizeof(int)" instead of WF_MSAMPLE_BYTES
(259) which was intended.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/isa/wavefront/wavefront_synth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/isa/wavefront/wavefront_synth.c b/sound/isa/wavefront/wavefront_synth.c
index a2f87f9488ee..e5db001363ee 100644
--- a/sound/isa/wavefront/wavefront_synth.c
+++ b/sound/isa/wavefront/wavefront_synth.c
@@ -1196,7 +1196,7 @@ wavefront_send_multisample (snd_wavefront_t *dev, wavefront_patch_info *header)
 	int num_samples;
 	unsigned char *msample_hdr;
 
-	msample_hdr = kmalloc(sizeof(WF_MSAMPLE_BYTES), GFP_KERNEL);
+	msample_hdr = kmalloc(WF_MSAMPLE_BYTES, GFP_KERNEL);
 	if (! msample_hdr)
 		return -ENOMEM;
 
-- 
cgit 


From 7a3e6107f94344e65c35bfe62de6c096a7b48965 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 13 Nov 2013 09:39:08 +0100
Subject: ALSA: hda - Don't turn off EAPD for headphone on Lenovo N100

The only EAPD on AD1986A is on NID 0x1b where usually the speaker.
But this doesn't control only the speaker amp but may influence on all
outputs, e.g. Lenovo N100 laptop seems to have this issue.

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_analog.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index 87d2e0335ae4..ba37116168ac 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -219,8 +219,12 @@ static int alloc_ad_spec(struct hda_codec *codec)
 static void ad_fixup_inv_jack_detect(struct hda_codec *codec,
 				     const struct hda_fixup *fix, int action)
 {
-	if (action == HDA_FIXUP_ACT_PRE_PROBE)
+	struct ad198x_spec *spec = codec->spec;
+
+	if (action == HDA_FIXUP_ACT_PRE_PROBE) {
 		codec->inv_jack_detect = 1;
+		spec->gen.keep_eapd_on = 1;
+	}
 }
 
 enum {
-- 
cgit 


From b6d5050cccf6f5b664a9601f4a274175ed6ab0b4 Mon Sep 17 00:00:00 2001
From: Vinod Koul <vinod.koul@intel.com>
Date: Wed, 13 Nov 2013 12:06:24 +0530
Subject: dmaengine: edma: remove duplicate kfree

fixing of freeing descriptor memory was applied twice, so remove the one
duplicate

Reported-by: Wing-Keung Wang <wingkeung.wang@gmail.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/edma.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/dma/edma.c b/drivers/dma/edma.c
index 592f3be8b435..ab48430765b8 100644
--- a/drivers/dma/edma.c
+++ b/drivers/dma/edma.c
@@ -428,7 +428,6 @@ static struct dma_async_tx_descriptor *edma_prep_slave_sg(
 			if (echan->slot[i] < 0) {
 				kfree(edesc);
 				dev_err(dev, "Failed to allocate slot\n");
-				kfree(edesc);
 				return NULL;
 			}
 		}
-- 
cgit 


From 40911c7dc0c318f094f7e9b0724db993df82df56 Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Tue, 12 Nov 2013 22:30:43 -0800
Subject: dmaengine: ipu: fix warnings from 64-bit dma_addr_t printouts

This resolves a number of warnings such as the below when building with
64-bit dma_addr_t on arm:

drivers/dma/ipu/ipu_idmac.c:1235:2: warning: format '%x' expects argument
  of type 'unsigned int', but argument 5 has type 'dma_addr_t' [-Wformat=]

..by upcasting to u64 and using %llx.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/ipu/ipu_idmac.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/ipu/ipu_idmac.c b/drivers/dma/ipu/ipu_idmac.c
index cb9c0bc317e8..128ca143486d 100644
--- a/drivers/dma/ipu/ipu_idmac.c
+++ b/drivers/dma/ipu/ipu_idmac.c
@@ -1232,8 +1232,10 @@ static irqreturn_t idmac_interrupt(int irq, void *dev_id)
 	desc = list_entry(ichan->queue.next, struct idmac_tx_desc, list);
 	descnew = desc;
 
-	dev_dbg(dev, "IDMAC irq %d, dma 0x%08x, next dma 0x%08x, current %d, curbuf 0x%08x\n",
-		irq, sg_dma_address(*sg), sgnext ? sg_dma_address(sgnext) : 0, ichan->active_buffer, curbuf);
+	dev_dbg(dev, "IDMAC irq %d, dma %#llx, next dma %#llx, current %d, curbuf %#x\n",
+		irq, (u64)sg_dma_address(*sg),
+		sgnext ? (u64)sg_dma_address(sgnext) : 0,
+		ichan->active_buffer, curbuf);
 
 	/* Find the descriptor of sgnext */
 	sgnew = idmac_sg_next(ichan, &descnew, *sg);
-- 
cgit 


From c3cc74b2474fad7876e275b2aa30886d708e55c5 Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Tue, 12 Nov 2013 22:30:44 -0800
Subject: dma: imx-sdma: Fix warnings for LPAE builds

This resolves a number of warnings such as the below when building with
64-bit dma_addr_t on arm:

drivers/dma/imx-sdma.c:1092:3: warning: format '%x' expects argument of
  type 'unsigned int', but argument 6 has type 'dma_addr_t' [-Wformat=]

..by upcasting to u64 and using %llx.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/imx-sdma.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index 0e03b3146b32..0c18f6a70ed0 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -1089,8 +1089,8 @@ static struct dma_async_tx_descriptor *sdma_prep_slave_sg(
 			param &= ~BD_CONT;
 		}
 
-		dev_dbg(sdma->dev, "entry %d: count: %d dma: 0x%08x %s%s\n",
-				i, count, sg->dma_address,
+		dev_dbg(sdma->dev, "entry %d: count: %d dma: %#llx %s%s\n",
+				i, count, (u64)sg->dma_address,
 				param & BD_WRAP ? "wrap" : "",
 				param & BD_INTR ? " intr" : "");
 
@@ -1163,8 +1163,8 @@ static struct dma_async_tx_descriptor *sdma_prep_dma_cyclic(
 		if (i + 1 == num_periods)
 			param |= BD_WRAP;
 
-		dev_dbg(sdma->dev, "entry %d: count: %d dma: 0x%08x %s%s\n",
-				i, period_len, dma_addr,
+		dev_dbg(sdma->dev, "entry %d: count: %d dma: %#llx %s%s\n",
+				i, period_len, (u64)dma_addr,
 				param & BD_WRAP ? "wrap" : "",
 				param & BD_INTR ? " intr" : "");
 
-- 
cgit 


From f710a9fbd3a894be5706956cd619b369f5acc474 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 13 Nov 2013 09:42:56 +0100
Subject: ALSA: hda - Control EAPD for Master volume on Lenovo N100

Similarly as other laptops with AD1981 & co codecs, we can control
EAPD on AD1986A more safely depending on the Master switch, in order
to save some power.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_analog.c | 27 ++++++++++++++-------------
 1 file changed, 14 insertions(+), 13 deletions(-)

diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index ba37116168ac..1a83559f4cbd 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -139,6 +139,18 @@ static int ad198x_suspend(struct hda_codec *codec)
 }
 #endif
 
+/* follow EAPD via vmaster hook */
+static void ad_vmaster_eapd_hook(void *private_data, int enabled)
+{
+	struct hda_codec *codec = private_data;
+	struct ad198x_spec *spec = codec->spec;
+
+	if (!spec->eapd_nid)
+		return;
+	snd_hda_codec_update_cache(codec, spec->eapd_nid, 0,
+				   AC_VERB_SET_EAPD_BTLENABLE,
+				   enabled ? 0x02 : 0x00);
+}
 
 /*
  * Automatic parse of I/O pins from the BIOS configuration
@@ -224,6 +236,8 @@ static void ad_fixup_inv_jack_detect(struct hda_codec *codec,
 	if (action == HDA_FIXUP_ACT_PRE_PROBE) {
 		codec->inv_jack_detect = 1;
 		spec->gen.keep_eapd_on = 1;
+		spec->gen.vmaster_mute.hook = ad_vmaster_eapd_hook;
+		spec->eapd_nid = 0x1b;
 	}
 }
 
@@ -469,19 +483,6 @@ static int patch_ad1983(struct hda_codec *codec)
  * AD1981 HD specific
  */
 
-/* follow EAPD via vmaster hook */
-static void ad_vmaster_eapd_hook(void *private_data, int enabled)
-{
-	struct hda_codec *codec = private_data;
-	struct ad198x_spec *spec = codec->spec;
-
-	if (!spec->eapd_nid)
-		return;
-	snd_hda_codec_update_cache(codec, spec->eapd_nid, 0,
-				   AC_VERB_SET_EAPD_BTLENABLE,
-				   enabled ? 0x02 : 0x00);
-}
-
 static void ad1981_fixup_hp_eapd(struct hda_codec *codec,
 				 const struct hda_fixup *fix, int action)
 {
-- 
cgit 


From c3d68d8dd4f8d44579e2f0d121990f288c4a0e9a Mon Sep 17 00:00:00 2001
From: Hongbo Zhang <hongbo.zhang@freescale.com>
Date: Thu, 26 Sep 2013 17:33:41 +0800
Subject: DMA: Freescale: revise device tree binding document

This patch updates the discription of each type of DMA controller and its
channels, it is preparation for adding another new DMA controller binding, it
also fixes some defects of indent for text alignment at the same time.

Signed-off-by: Hongbo Zhang <hongbo.zhang@freescale.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 .../devicetree/bindings/powerpc/fsl/dma.txt        | 68 ++++++++++------------
 1 file changed, 31 insertions(+), 37 deletions(-)

diff --git a/Documentation/devicetree/bindings/powerpc/fsl/dma.txt b/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
index 2a4b4bce6110..05841689c4a3 100644
--- a/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
+++ b/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
@@ -1,33 +1,30 @@
-* Freescale 83xx DMA Controller
+* Freescale DMA Controllers
 
-Freescale PowerPC 83xx have on chip general purpose DMA controllers.
+** Freescale Elo DMA Controller
+   This is a little-endian 4-channel DMA controller, used in Freescale mpc83xx
+   series chips such as mpc8315, mpc8349, mpc8379 etc.
 
 Required properties:
 
-- compatible        : compatible list, contains 2 entries, first is
-		 "fsl,CHIP-dma", where CHIP is the processor
-		 (mpc8349, mpc8360, etc.) and the second is
-		 "fsl,elo-dma"
-- reg               : <registers mapping for DMA general status reg>
-- ranges		: Should be defined as specified in 1) to describe the
-		  DMA controller channels.
+- compatible        : must include "fsl,elo-dma"
+- reg               : DMA General Status Register, i.e. DGSR which contains
+                      status for all the 4 DMA channels
+- ranges            : describes the mapping between the address space of the
+                      DMA channels and the address space of the DMA controller
 - cell-index        : controller index.  0 for controller @ 0x8100
-- interrupts        : <interrupt mapping for DMA IRQ>
+- interrupts        : interrupt specifier for DMA IRQ
 - interrupt-parent  : optional, if needed for interrupt mapping
 
-
 - DMA channel nodes:
-        - compatible        : compatible list, contains 2 entries, first is
-			 "fsl,CHIP-dma-channel", where CHIP is the processor
-			 (mpc8349, mpc8350, etc.) and the second is
-			 "fsl,elo-dma-channel". However, see note below.
-        - reg               : <registers mapping for channel>
-        - cell-index        : dma channel index starts at 0.
+        - compatible        : must include "fsl,elo-dma-channel"
+                              However, see note below.
+        - reg               : DMA channel specific registers
+        - cell-index        : DMA channel index starts at 0.
 
 Optional properties:
-        - interrupts        : <interrupt mapping for DMA channel IRQ>
-			  (on 83xx this is expected to be identical to
-			   the interrupts property of the parent node)
+        - interrupts        : interrupt specifier for DMA channel IRQ
+                              (on 83xx this is expected to be identical to
+                              the interrupts property of the parent node)
         - interrupt-parent  : optional, if needed for interrupt mapping
 
 Example:
@@ -70,30 +67,27 @@ Example:
 		};
 	};
 
-* Freescale 85xx/86xx DMA Controller
-
-Freescale PowerPC 85xx/86xx have on chip general purpose DMA controllers.
+** Freescale EloPlus DMA Controller
+   This is a 4-channel DMA controller with extended addresses and chaining,
+   mainly used in Freescale mpc85xx/86xx, Pxxx and BSC series chips, such as
+   mpc8540, mpc8641 p4080, bsc9131 etc.
 
 Required properties:
 
-- compatible        : compatible list, contains 2 entries, first is
-		 "fsl,CHIP-dma", where CHIP is the processor
-		 (mpc8540, mpc8540, etc.) and the second is
-		 "fsl,eloplus-dma"
-- reg               : <registers mapping for DMA general status reg>
+- compatible        : must include "fsl,eloplus-dma"
+- reg               : DMA General Status Register, i.e. DGSR which contains
+                      status for all the 4 DMA channels
 - cell-index        : controller index.  0 for controller @ 0x21000,
                                          1 for controller @ 0xc000
-- ranges		: Should be defined as specified in 1) to describe the
-		  DMA controller channels.
+- ranges            : describes the mapping between the address space of the
+                      DMA channels and the address space of the DMA controller
 
 - DMA channel nodes:
-        - compatible        : compatible list, contains 2 entries, first is
-			 "fsl,CHIP-dma-channel", where CHIP is the processor
-			 (mpc8540, mpc8560, etc.) and the second is
-			 "fsl,eloplus-dma-channel". However, see note below.
-        - cell-index        : dma channel index starts at 0.
-        - reg               : <registers mapping for channel>
-        - interrupts        : <interrupt mapping for DMA channel IRQ>
+        - compatible        : must include "fsl,eloplus-dma-channel"
+                              However, see note below.
+        - cell-index        : DMA channel index starts at 0.
+        - reg               : DMA channel specific registers
+        - interrupts        : interrupt specifier for DMA channel IRQ
         - interrupt-parent  : optional, if needed for interrupt mapping
 
 Example:
-- 
cgit 


From 03aa254f1e3c3d902cd68763f8abc2387e82b4da Mon Sep 17 00:00:00 2001
From: Hongbo Zhang <hongbo.zhang@freescale.com>
Date: Thu, 26 Sep 2013 17:33:42 +0800
Subject: DMA: Freescale: Add new 8-channel DMA engine device tree nodes

Freescale QorIQ T4 and B4 introduce new 8-channel DMA engines, this patch adds
the device tree nodes for them.

Signed-off-by: Hongbo Zhang <hongbo.zhang@freescale.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 .../devicetree/bindings/powerpc/fsl/dma.txt        | 70 ++++++++++++++++++
 arch/powerpc/boot/dts/fsl/b4si-post.dtsi           |  4 +-
 arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi          | 82 ++++++++++++++++++++++
 arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi          | 82 ++++++++++++++++++++++
 arch/powerpc/boot/dts/fsl/t4240si-post.dtsi        |  4 +-
 5 files changed, 238 insertions(+), 4 deletions(-)
 create mode 100644 arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
 create mode 100644 arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi

diff --git a/Documentation/devicetree/bindings/powerpc/fsl/dma.txt b/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
index 05841689c4a3..7fc1b010fa75 100644
--- a/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
+++ b/Documentation/devicetree/bindings/powerpc/fsl/dma.txt
@@ -128,6 +128,76 @@ Example:
 		};
 	};
 
+** Freescale Elo3 DMA Controller
+   DMA controller which has same function as EloPlus except that Elo3 has 8
+   channels while EloPlus has only 4, it is used in Freescale Txxx and Bxxx
+   series chips, such as t1040, t4240, b4860.
+
+Required properties:
+
+- compatible        : must include "fsl,elo3-dma"
+- reg               : contains two entries for DMA General Status Registers,
+                      i.e. DGSR0 which includes status for channel 1~4, and
+                      DGSR1 for channel 5~8
+- ranges            : describes the mapping between the address space of the
+                      DMA channels and the address space of the DMA controller
+
+- DMA channel nodes:
+        - compatible        : must include "fsl,eloplus-dma-channel"
+        - reg               : DMA channel specific registers
+        - interrupts        : interrupt specifier for DMA channel IRQ
+        - interrupt-parent  : optional, if needed for interrupt mapping
+
+Example:
+dma@100300 {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	compatible = "fsl,elo3-dma";
+	reg = <0x100300 0x4>,
+	      <0x100600 0x4>;
+	ranges = <0x0 0x100100 0x500>;
+	dma-channel@0 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x0 0x80>;
+		interrupts = <28 2 0 0>;
+	};
+	dma-channel@80 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x80 0x80>;
+		interrupts = <29 2 0 0>;
+	};
+	dma-channel@100 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x100 0x80>;
+		interrupts = <30 2 0 0>;
+	};
+	dma-channel@180 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x180 0x80>;
+		interrupts = <31 2 0 0>;
+	};
+	dma-channel@300 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x300 0x80>;
+		interrupts = <76 2 0 0>;
+	};
+	dma-channel@380 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x380 0x80>;
+		interrupts = <77 2 0 0>;
+	};
+	dma-channel@400 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x400 0x80>;
+		interrupts = <78 2 0 0>;
+	};
+	dma-channel@480 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x480 0x80>;
+		interrupts = <79 2 0 0>;
+	};
+};
+
 Note on DMA channel compatible properties: The compatible property must say
 "fsl,elo-dma-channel" or "fsl,eloplus-dma-channel" to be used by the Elo DMA
 driver (fsldma).  Any DMA channel used by fsldma cannot be used by another
diff --git a/arch/powerpc/boot/dts/fsl/b4si-post.dtsi b/arch/powerpc/boot/dts/fsl/b4si-post.dtsi
index 4c617bf8cdb2..4f6e48277c46 100644
--- a/arch/powerpc/boot/dts/fsl/b4si-post.dtsi
+++ b/arch/powerpc/boot/dts/fsl/b4si-post.dtsi
@@ -223,13 +223,13 @@
 		reg = <0xe2000 0x1000>;
 	};
 
-/include/ "qoriq-dma-0.dtsi"
+/include/ "elo3-dma-0.dtsi"
 	dma@100300 {
 		fsl,iommu-parent = <&pamu0>;
 		fsl,liodn-reg = <&guts 0x580>; /* DMA1LIODNR */
 	};
 
-/include/ "qoriq-dma-1.dtsi"
+/include/ "elo3-dma-1.dtsi"
 	dma@101300 {
 		fsl,iommu-parent = <&pamu0>;
 		fsl,liodn-reg = <&guts 0x584>; /* DMA2LIODNR */
diff --git a/arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi b/arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
new file mode 100644
index 000000000000..3c210e0d5201
--- /dev/null
+++ b/arch/powerpc/boot/dts/fsl/elo3-dma-0.dtsi
@@ -0,0 +1,82 @@
+/*
+ * QorIQ Elo3 DMA device tree stub [ controller @ offset 0x100000 ]
+ *
+ * Copyright 2013 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Freescale Semiconductor nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+dma0: dma@100300 {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	compatible = "fsl,elo3-dma";
+	reg = <0x100300 0x4>,
+	      <0x100600 0x4>;
+	ranges = <0x0 0x100100 0x500>;
+	dma-channel@0 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x0 0x80>;
+		interrupts = <28 2 0 0>;
+	};
+	dma-channel@80 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x80 0x80>;
+		interrupts = <29 2 0 0>;
+	};
+	dma-channel@100 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x100 0x80>;
+		interrupts = <30 2 0 0>;
+	};
+	dma-channel@180 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x180 0x80>;
+		interrupts = <31 2 0 0>;
+	};
+	dma-channel@300 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x300 0x80>;
+		interrupts = <76 2 0 0>;
+	};
+	dma-channel@380 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x380 0x80>;
+		interrupts = <77 2 0 0>;
+	};
+	dma-channel@400 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x400 0x80>;
+		interrupts = <78 2 0 0>;
+	};
+	dma-channel@480 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x480 0x80>;
+		interrupts = <79 2 0 0>;
+	};
+};
diff --git a/arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi b/arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi
new file mode 100644
index 000000000000..cccf3bb38224
--- /dev/null
+++ b/arch/powerpc/boot/dts/fsl/elo3-dma-1.dtsi
@@ -0,0 +1,82 @@
+/*
+ * QorIQ Elo3 DMA device tree stub [ controller @ offset 0x101000 ]
+ *
+ * Copyright 2013 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Freescale Semiconductor nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+dma1: dma@101300 {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	compatible = "fsl,elo3-dma";
+	reg = <0x101300 0x4>,
+	      <0x101600 0x4>;
+	ranges = <0x0 0x101100 0x500>;
+	dma-channel@0 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x0 0x80>;
+		interrupts = <32 2 0 0>;
+	};
+	dma-channel@80 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x80 0x80>;
+		interrupts = <33 2 0 0>;
+	};
+	dma-channel@100 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x100 0x80>;
+		interrupts = <34 2 0 0>;
+	};
+	dma-channel@180 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x180 0x80>;
+		interrupts = <35 2 0 0>;
+	};
+	dma-channel@300 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x300 0x80>;
+		interrupts = <80 2 0 0>;
+	};
+	dma-channel@380 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x380 0x80>;
+		interrupts = <81 2 0 0>;
+	};
+	dma-channel@400 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x400 0x80>;
+		interrupts = <82 2 0 0>;
+	};
+	dma-channel@480 {
+		compatible = "fsl,eloplus-dma-channel";
+		reg = <0x480 0x80>;
+		interrupts = <83 2 0 0>;
+	};
+};
diff --git a/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi b/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
index 510afa362de1..4143a9733cd0 100644
--- a/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
+++ b/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi
@@ -387,8 +387,8 @@
 		reg	   = <0xea000 0x4000>;
 	};
 
-/include/ "qoriq-dma-0.dtsi"
-/include/ "qoriq-dma-1.dtsi"
+/include/ "elo3-dma-0.dtsi"
+/include/ "elo3-dma-1.dtsi"
 
 /include/ "qoriq-espi-0.dtsi"
 	spi@110000 {
-- 
cgit 


From 8de7a7d95049bdbe454ade7add08d893efe5a456 Mon Sep 17 00:00:00 2001
From: Hongbo Zhang <hongbo.zhang@freescale.com>
Date: Thu, 26 Sep 2013 17:33:43 +0800
Subject: DMA: Freescale: update driver to support 8-channel DMA engine

This patch adds support to 8-channel DMA engine, thus the driver works for both
the new 8-channel and the legacy 4-channel DMA engines.

Signed-off-by: Hongbo Zhang <hongbo.zhang@freescale.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/Kconfig  | 9 +++++----
 drivers/dma/fsldma.c | 9 ++++++---
 drivers/dma/fsldma.h | 2 +-
 3 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index f238cfd33847..cd325866d9f4 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -89,14 +89,15 @@ config AT_HDMAC
 	  Support the Atmel AHB DMA controller.
 
 config FSL_DMA
-	tristate "Freescale Elo and Elo Plus DMA support"
+	tristate "Freescale Elo series DMA support"
 	depends on FSL_SOC
 	select DMA_ENGINE
 	select ASYNC_TX_ENABLE_CHANNEL_SWITCH
 	---help---
-	  Enable support for the Freescale Elo and Elo Plus DMA controllers.
-	  The Elo is the DMA controller on some 82xx and 83xx parts, and the
-	  Elo Plus is the DMA controller on 85xx and 86xx parts.
+	  Enable support for the Freescale Elo series DMA controllers.
+	  The Elo is the DMA controller on some mpc82xx and mpc83xx parts, the
+	  EloPlus is on mpc85xx and mpc86xx and Pxxx parts, and the Elo3 is on
+	  some Txxx and Bxxx parts.
 
 config MPC512X_DMA
 	tristate "Freescale MPC512x built-in DMA engine support"
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index b3f3e90054f2..4e898121707b 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -1253,7 +1253,9 @@ static int fsl_dma_chan_probe(struct fsldma_device *fdev,
 	WARN_ON(fdev->feature != chan->feature);
 
 	chan->dev = fdev->dev;
-	chan->id = ((res.start - 0x100) & 0xfff) >> 7;
+	chan->id = (res.start & 0xfff) < 0x300 ?
+		   ((res.start - 0x100) & 0xfff) >> 7 :
+		   ((res.start - 0x200) & 0xfff) >> 7;
 	if (chan->id >= FSL_DMA_MAX_CHANS_PER_DEVICE) {
 		dev_err(fdev->dev, "too many channels for device\n");
 		err = -EINVAL;
@@ -1426,6 +1428,7 @@ static int fsldma_of_remove(struct platform_device *op)
 }
 
 static const struct of_device_id fsldma_of_ids[] = {
+	{ .compatible = "fsl,elo3-dma", },
 	{ .compatible = "fsl,eloplus-dma", },
 	{ .compatible = "fsl,elo-dma", },
 	{}
@@ -1447,7 +1450,7 @@ static struct platform_driver fsldma_of_driver = {
 
 static __init int fsldma_init(void)
 {
-	pr_info("Freescale Elo / Elo Plus DMA driver\n");
+	pr_info("Freescale Elo series DMA driver\n");
 	return platform_driver_register(&fsldma_of_driver);
 }
 
@@ -1459,5 +1462,5 @@ static void __exit fsldma_exit(void)
 subsys_initcall(fsldma_init);
 module_exit(fsldma_exit);
 
-MODULE_DESCRIPTION("Freescale Elo / Elo Plus DMA driver");
+MODULE_DESCRIPTION("Freescale Elo series DMA driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/dma/fsldma.h b/drivers/dma/fsldma.h
index f5c38791fc74..1ffc24484d23 100644
--- a/drivers/dma/fsldma.h
+++ b/drivers/dma/fsldma.h
@@ -112,7 +112,7 @@ struct fsldma_chan_regs {
 };
 
 struct fsldma_chan;
-#define FSL_DMA_MAX_CHANS_PER_DEVICE 4
+#define FSL_DMA_MAX_CHANS_PER_DEVICE 8
 
 struct fsldma_device {
 	void __iomem *regs;	/* DGSR register base */
-- 
cgit 


From b2d639890b0d3379e844f6bb3c90d67ab292c80b Mon Sep 17 00:00:00 2001
From: Markus Pargmann <mpa@pengutronix.de>
Date: Tue, 29 Oct 2013 08:47:45 +0100
Subject: dma: mxs-dma: Cleanup interrupt handler

The DMA interrupt handler uses its controll registers to handle all
available channel interrupts it can find.

This patch changes it to handle only one interrupt by directly mapping
irq number to channel. It also includes a cleanup of the ctrl-register
usage.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/mxs-dma.c | 96 ++++++++++++++++++++++++++++++++-------------------
 1 file changed, 60 insertions(+), 36 deletions(-)

diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c
index 7ab7cecc48a4..1d1b6e99993d 100644
--- a/drivers/dma/mxs-dma.c
+++ b/drivers/dma/mxs-dma.c
@@ -27,6 +27,7 @@
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/of_dma.h>
+#include <linux/list.h>
 
 #include <asm/irq.h>
 
@@ -272,58 +273,81 @@ static void mxs_dma_tasklet(unsigned long data)
 		mxs_chan->desc.callback(mxs_chan->desc.callback_param);
 }
 
+static int mxs_dma_irq_to_chan(struct mxs_dma_engine *mxs_dma, int irq)
+{
+	int i;
+
+	for (i = 0; i != mxs_dma->nr_channels; ++i)
+		if (mxs_dma->mxs_chans[i].chan_irq == irq)
+			return i;
+
+	return -EINVAL;
+}
+
 static irqreturn_t mxs_dma_int_handler(int irq, void *dev_id)
 {
 	struct mxs_dma_engine *mxs_dma = dev_id;
-	u32 stat1, stat2;
+	struct mxs_dma_chan *mxs_chan;
+	u32 completed;
+	u32 err;
+	int chan = mxs_dma_irq_to_chan(mxs_dma, irq);
+
+	if (chan < 0)
+		return IRQ_NONE;
 
 	/* completion status */
-	stat1 = readl(mxs_dma->base + HW_APBHX_CTRL1);
-	stat1 &= MXS_DMA_CHANNELS_MASK;
-	writel(stat1, mxs_dma->base + HW_APBHX_CTRL1 + STMP_OFFSET_REG_CLR);
+	completed = readl(mxs_dma->base + HW_APBHX_CTRL1);
+	completed = (completed >> chan) & 0x1;
+
+	/* Clear interrupt */
+	writel((1 << chan),
+			mxs_dma->base + HW_APBHX_CTRL1 + STMP_OFFSET_REG_CLR);
 
 	/* error status */
-	stat2 = readl(mxs_dma->base + HW_APBHX_CTRL2);
-	writel(stat2, mxs_dma->base + HW_APBHX_CTRL2 + STMP_OFFSET_REG_CLR);
+	err = readl(mxs_dma->base + HW_APBHX_CTRL2);
+	err &= (1 << (MXS_DMA_CHANNELS + chan)) | (1 << chan);
+
+	/*
+	 * error status bit is in the upper 16 bits, error irq bit in the lower
+	 * 16 bits. We transform it into a simpler error code:
+	 * err: 0x00 = no error, 0x01 = TERMINATION, 0x02 = BUS_ERROR
+	 */
+	err = (err >> (MXS_DMA_CHANNELS + chan)) + (err >> chan);
+
+	/* Clear error irq */
+	writel((1 << chan),
+			mxs_dma->base + HW_APBHX_CTRL2 + STMP_OFFSET_REG_CLR);
 
 	/*
 	 * When both completion and error of termination bits set at the
 	 * same time, we do not take it as an error.  IOW, it only becomes
-	 * an error we need to handle here in case of either it's (1) a bus
-	 * error or (2) a termination error with no completion.
+	 * an error we need to handle here in case of either it's a bus
+	 * error or a termination error with no completion. 0x01 is termination
+	 * error, so we can subtract err & completed to get the real error case.
 	 */
-	stat2 = ((stat2 >> MXS_DMA_CHANNELS) & stat2) | /* (1) */
-		(~(stat2 >> MXS_DMA_CHANNELS) & stat2 & ~stat1); /* (2) */
-
-	/* combine error and completion status for checking */
-	stat1 = (stat2 << MXS_DMA_CHANNELS) | stat1;
-	while (stat1) {
-		int channel = fls(stat1) - 1;
-		struct mxs_dma_chan *mxs_chan =
-			&mxs_dma->mxs_chans[channel % MXS_DMA_CHANNELS];
-
-		if (channel >= MXS_DMA_CHANNELS) {
-			dev_dbg(mxs_dma->dma_device.dev,
-				"%s: error in channel %d\n", __func__,
-				channel - MXS_DMA_CHANNELS);
-			mxs_chan->status = DMA_ERROR;
-			mxs_dma_reset_chan(mxs_chan);
-		} else {
-			if (mxs_chan->flags & MXS_DMA_SG_LOOP)
-				mxs_chan->status = DMA_IN_PROGRESS;
-			else
-				mxs_chan->status = DMA_COMPLETE;
-		}
+	err -= err & completed;
 
-		stat1 &= ~(1 << channel);
+	mxs_chan = &mxs_dma->mxs_chans[chan];
 
-		if (mxs_chan->status == DMA_COMPLETE)
-			dma_cookie_complete(&mxs_chan->desc);
-
-		/* schedule tasklet on this channel */
-		tasklet_schedule(&mxs_chan->tasklet);
+	if (err) {
+		dev_dbg(mxs_dma->dma_device.dev,
+			"%s: error in channel %d\n", __func__,
+			chan);
+		mxs_chan->status = DMA_ERROR;
+		mxs_dma_reset_chan(mxs_chan);
+	} else {
+		if (mxs_chan->flags & MXS_DMA_SG_LOOP)
+			mxs_chan->status = DMA_IN_PROGRESS;
+		else
+			mxs_chan->status = DMA_COMPLETE;
 	}
 
+	if (mxs_chan->status == DMA_COMPLETE)
+		dma_cookie_complete(&mxs_chan->desc);
+
+	/* schedule tasklet on this channel */
+	tasklet_schedule(&mxs_chan->tasklet);
+
 	return IRQ_HANDLED;
 }
 
-- 
cgit 


From 7b11304a3c11a24a8674a47e8fd136182f86b49d Mon Sep 17 00:00:00 2001
From: Markus Pargmann <mpa@pengutronix.de>
Date: Tue, 29 Oct 2013 08:47:46 +0100
Subject: dma: mxs-dma: Report correct residue for cyclic DMA

Use the channel's buffer address register to calculate correct residue
value for tx_status.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/mxs-dma.c | 20 +++++++++++++++++++-
 1 file changed, 19 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c
index 1d1b6e99993d..083e7f1a94f0 100644
--- a/drivers/dma/mxs-dma.c
+++ b/drivers/dma/mxs-dma.c
@@ -58,6 +58,8 @@
 	(((dma_is_apbh(d) && apbh_is_old(d)) ? 0x050 : 0x110) + (n) * 0x70)
 #define HW_APBHX_CHn_SEMA(d, n) \
 	(((dma_is_apbh(d) && apbh_is_old(d)) ? 0x080 : 0x140) + (n) * 0x70)
+#define HW_APBHX_CHn_BAR(d, n) \
+	(((dma_is_apbh(d) && apbh_is_old(d)) ? 0x070 : 0x130) + (n) * 0x70)
 
 /*
  * ccw bits definitions
@@ -623,8 +625,24 @@ static enum dma_status mxs_dma_tx_status(struct dma_chan *chan,
 			dma_cookie_t cookie, struct dma_tx_state *txstate)
 {
 	struct mxs_dma_chan *mxs_chan = to_mxs_dma_chan(chan);
+	struct mxs_dma_engine *mxs_dma = mxs_chan->mxs_dma;
+	u32 residue = 0;
+
+	if (mxs_chan->status == DMA_IN_PROGRESS &&
+			mxs_chan->flags & MXS_DMA_SG_LOOP) {
+		struct mxs_dma_ccw *last_ccw;
+		u32 bar;
+
+		last_ccw = &mxs_chan->ccw[mxs_chan->desc_count - 1];
+		residue = last_ccw->xfer_bytes + last_ccw->bufaddr;
+
+		bar = readl(mxs_dma->base +
+				HW_APBHX_CHn_BAR(mxs_dma, chan->chan_id));
+		residue -= bar;
+	}
 
-	dma_set_tx_state(txstate, chan->completed_cookie, chan->cookie, 0);
+	dma_set_tx_state(txstate, chan->completed_cookie, chan->cookie,
+			residue);
 
 	return mxs_chan->status;
 }
-- 
cgit 


From 702e94d66b555622ca6830de3095b5f0bb2ff6d7 Mon Sep 17 00:00:00 2001
From: Markus Pargmann <mpa@pengutronix.de>
Date: Tue, 29 Oct 2013 08:47:47 +0100
Subject: dma: mxs-dma: Fix channel reset hardware bug

This is no official errata, but I noticed that the channel reset may
stop working if the DMA state engine is in the READ_FLUSH state.

This patch uses the channel debug1 register to wait for the DMA
statemachine to leave the READ_FLUSH state. After that we can continue
to reset the channel.

Tested on i.MX28.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/mxs-dma.c | 29 +++++++++++++++++++++++++++--
 1 file changed, 27 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c
index 083e7f1a94f0..530267068061 100644
--- a/drivers/dma/mxs-dma.c
+++ b/drivers/dma/mxs-dma.c
@@ -60,6 +60,7 @@
 	(((dma_is_apbh(d) && apbh_is_old(d)) ? 0x080 : 0x140) + (n) * 0x70)
 #define HW_APBHX_CHn_BAR(d, n) \
 	(((dma_is_apbh(d) && apbh_is_old(d)) ? 0x070 : 0x130) + (n) * 0x70)
+#define HW_APBX_CHn_DEBUG1(d, n) (0x150 + (n) * 0x70)
 
 /*
  * ccw bits definitions
@@ -204,12 +205,36 @@ static void mxs_dma_reset_chan(struct mxs_dma_chan *mxs_chan)
 	struct mxs_dma_engine *mxs_dma = mxs_chan->mxs_dma;
 	int chan_id = mxs_chan->chan.chan_id;
 
-	if (dma_is_apbh(mxs_dma) && apbh_is_old(mxs_dma))
+	if (dma_is_apbh(mxs_dma) && apbh_is_old(mxs_dma)) {
 		writel(1 << (chan_id + BP_APBH_CTRL0_RESET_CHANNEL),
 			mxs_dma->base + HW_APBHX_CTRL0 + STMP_OFFSET_REG_SET);
-	else
+	} else {
+		unsigned long elapsed = 0;
+		const unsigned long max_wait = 50000; /* 50ms */
+		void __iomem *reg_dbg1 = mxs_dma->base +
+				HW_APBX_CHn_DEBUG1(mxs_dma, chan_id);
+
+		/*
+		 * On i.MX28 APBX, the DMA channel can stop working if we reset
+		 * the channel while it is in READ_FLUSH (0x08) state.
+		 * We wait here until we leave the state. Then we trigger the
+		 * reset. Waiting a maximum of 50ms, the kernel shouldn't crash
+		 * because of this.
+		 */
+		while ((readl(reg_dbg1) & 0xf) == 0x8 && elapsed < max_wait) {
+			udelay(100);
+			elapsed += 100;
+		}
+
+		if (elapsed >= max_wait)
+			dev_err(&mxs_chan->mxs_dma->pdev->dev,
+					"Failed waiting for the DMA channel %d to leave state READ_FLUSH, trying to reset channel in READ_FLUSH state now\n",
+					chan_id);
+
+
 		writel(1 << (chan_id + BP_APBHX_CHANNEL_CTRL_RESET_CHANNEL),
 			mxs_dma->base + HW_APBHX_CHANNEL_CTRL + STMP_OFFSET_REG_SET);
+	}
 }
 
 static void mxs_dma_enable_chan(struct mxs_dma_chan *mxs_chan)
-- 
cgit 


From bb3660f130996d2653f123ee1ad802f11adbfb1c Mon Sep 17 00:00:00 2001
From: Markus Pargmann <mpa@pengutronix.de>
Date: Tue, 29 Oct 2013 08:47:48 +0100
Subject: dma: mxs-dma: Update state after channel reset

After a channel reset, the channel stops running automatically. The
state update was missing so that a channel perperation right after a
channel reset failed.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/mxs-dma.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c
index 530267068061..f48f87feeca4 100644
--- a/drivers/dma/mxs-dma.c
+++ b/drivers/dma/mxs-dma.c
@@ -235,6 +235,8 @@ static void mxs_dma_reset_chan(struct mxs_dma_chan *mxs_chan)
 		writel(1 << (chan_id + BP_APBHX_CHANNEL_CTRL_RESET_CHANNEL),
 			mxs_dma->base + HW_APBHX_CHANNEL_CTRL + STMP_OFFSET_REG_SET);
 	}
+
+	mxs_chan->status = DMA_COMPLETE;
 }
 
 static void mxs_dma_enable_chan(struct mxs_dma_chan *mxs_chan)
@@ -362,7 +364,7 @@ static irqreturn_t mxs_dma_int_handler(int irq, void *dev_id)
 			chan);
 		mxs_chan->status = DMA_ERROR;
 		mxs_dma_reset_chan(mxs_chan);
-	} else {
+	} else if (mxs_chan->status != DMA_COMPLETE) {
 		if (mxs_chan->flags & MXS_DMA_SG_LOOP)
 			mxs_chan->status = DMA_IN_PROGRESS;
 		else
-- 
cgit 


From 2dcbdce3610a1ba190a74b782b9f7f1f7f976325 Mon Sep 17 00:00:00 2001
From: Markus Pargmann <mpa@pengutronix.de>
Date: Tue, 29 Oct 2013 08:47:49 +0100
Subject: dma: mxs-dma: Use semaphores for cyclic DMA

mxs dma channel hardware reset command is not reliable and can cause
a channel stall. The only way to fix the channel stall is a DMA engine
reset.

To avoid channel resets we use the hardware semaphore counter. For each
transmitted segment, the DMA channel will decrease the counter by one.
To use this mechanism with cyclic DMA, we need to increase the semaphore
counter with each completed DMA command in the interrupt handler. To
avoid any interruptions between the DMA transfers, the semaphore counter
is initialized with 2. This way the counter can be increased in the
interrupt handler without an influence on the transfer of the DMA
engine.

When disabling the channel, we stop increasing the semaphore counter in
the interrupt handler.

This patch was tested on i.MX28 with the SAIF DMA channel.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/mxs-dma.c | 41 +++++++++++++++++++++++++++++++++++------
 1 file changed, 35 insertions(+), 6 deletions(-)

diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c
index f48f87feeca4..ead491346da7 100644
--- a/drivers/dma/mxs-dma.c
+++ b/drivers/dma/mxs-dma.c
@@ -119,7 +119,9 @@ struct mxs_dma_chan {
 	int				desc_count;
 	enum dma_status			status;
 	unsigned int			flags;
+	bool				reset;
 #define MXS_DMA_SG_LOOP			(1 << 0)
+#define MXS_DMA_USE_SEMAPHORE		(1 << 1)
 };
 
 #define MXS_DMA_CHANNELS		16
@@ -205,7 +207,17 @@ static void mxs_dma_reset_chan(struct mxs_dma_chan *mxs_chan)
 	struct mxs_dma_engine *mxs_dma = mxs_chan->mxs_dma;
 	int chan_id = mxs_chan->chan.chan_id;
 
-	if (dma_is_apbh(mxs_dma) && apbh_is_old(mxs_dma)) {
+	/*
+	 * mxs dma channel resets can cause a channel stall. To recover from a
+	 * channel stall, we have to reset the whole DMA engine. To avoid this,
+	 * we use cyclic DMA with semaphores, that are enhanced in
+	 * mxs_dma_int_handler. To reset the channel, we can simply stop writing
+	 * into the semaphore counter.
+	 */
+	if (mxs_chan->flags & MXS_DMA_USE_SEMAPHORE &&
+			mxs_chan->flags & MXS_DMA_SG_LOOP) {
+		mxs_chan->reset = true;
+	} else if (dma_is_apbh(mxs_dma) && apbh_is_old(mxs_dma)) {
 		writel(1 << (chan_id + BP_APBH_CTRL0_RESET_CHANNEL),
 			mxs_dma->base + HW_APBHX_CTRL0 + STMP_OFFSET_REG_SET);
 	} else {
@@ -231,7 +243,6 @@ static void mxs_dma_reset_chan(struct mxs_dma_chan *mxs_chan)
 					"Failed waiting for the DMA channel %d to leave state READ_FLUSH, trying to reset channel in READ_FLUSH state now\n",
 					chan_id);
 
-
 		writel(1 << (chan_id + BP_APBHX_CHANNEL_CTRL_RESET_CHANNEL),
 			mxs_dma->base + HW_APBHX_CHANNEL_CTRL + STMP_OFFSET_REG_SET);
 	}
@@ -249,7 +260,16 @@ static void mxs_dma_enable_chan(struct mxs_dma_chan *mxs_chan)
 		mxs_dma->base + HW_APBHX_CHn_NXTCMDAR(mxs_dma, chan_id));
 
 	/* write 1 to SEMA to kick off the channel */
-	writel(1, mxs_dma->base + HW_APBHX_CHn_SEMA(mxs_dma, chan_id));
+	if (mxs_chan->flags & MXS_DMA_USE_SEMAPHORE &&
+			mxs_chan->flags & MXS_DMA_SG_LOOP) {
+		/* A cyclic DMA consists of at least 2 segments, so initialize
+		 * the semaphore with 2 so we have enough time to add 1 to the
+		 * semaphore if we need to */
+		writel(2, mxs_dma->base + HW_APBHX_CHn_SEMA(mxs_dma, chan_id));
+	} else {
+		writel(1, mxs_dma->base + HW_APBHX_CHn_SEMA(mxs_dma, chan_id));
+	}
+	mxs_chan->reset = false;
 }
 
 static void mxs_dma_disable_chan(struct mxs_dma_chan *mxs_chan)
@@ -365,14 +385,21 @@ static irqreturn_t mxs_dma_int_handler(int irq, void *dev_id)
 		mxs_chan->status = DMA_ERROR;
 		mxs_dma_reset_chan(mxs_chan);
 	} else if (mxs_chan->status != DMA_COMPLETE) {
-		if (mxs_chan->flags & MXS_DMA_SG_LOOP)
+		if (mxs_chan->flags & MXS_DMA_SG_LOOP) {
 			mxs_chan->status = DMA_IN_PROGRESS;
-		else
+			if (mxs_chan->flags & MXS_DMA_USE_SEMAPHORE)
+				writel(1, mxs_dma->base +
+					HW_APBHX_CHn_SEMA(mxs_dma, chan));
+		} else {
 			mxs_chan->status = DMA_COMPLETE;
+		}
 	}
 
-	if (mxs_chan->status == DMA_COMPLETE)
+	if (mxs_chan->status == DMA_COMPLETE) {
+		if (mxs_chan->reset)
+			return IRQ_HANDLED;
 		dma_cookie_complete(&mxs_chan->desc);
+	}
 
 	/* schedule tasklet on this channel */
 	tasklet_schedule(&mxs_chan->tasklet);
@@ -576,6 +603,7 @@ static struct dma_async_tx_descriptor *mxs_dma_prep_dma_cyclic(
 
 	mxs_chan->status = DMA_IN_PROGRESS;
 	mxs_chan->flags |= MXS_DMA_SG_LOOP;
+	mxs_chan->flags |= MXS_DMA_USE_SEMAPHORE;
 
 	if (num_periods > NUM_CCW) {
 		dev_err(mxs_dma->dma_device.dev,
@@ -607,6 +635,7 @@ static struct dma_async_tx_descriptor *mxs_dma_prep_dma_cyclic(
 		ccw->bits |= CCW_IRQ;
 		ccw->bits |= CCW_HALT_ON_TERM;
 		ccw->bits |= CCW_TERM_FLUSH;
+		ccw->bits |= CCW_DEC_SEM;
 		ccw->bits |= BF_CCW(direction == DMA_DEV_TO_MEM ?
 				MXS_DMA_CMD_WRITE : MXS_DMA_CMD_READ, COMMAND);
 
-- 
cgit 


From 7f62656be8a8ef14c168db2d98021fb9c8cc1076 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 13 Nov 2013 10:49:40 +0300
Subject: aio: checking for NULL instead of IS_ERR

alloc_anon_inode() returns an ERR_PTR(), it doesn't return NULL.

Fixes: 71ad7490c1f3 ('rework aio migrate pages to use aio fs')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/aio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/aio.c b/fs/aio.c
index 1f602d9be4c5..823efcbb6ccd 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -163,8 +163,8 @@ static struct file *aio_private_file(struct kioctx *ctx, loff_t nr_pages)
 	struct file *file;
 	struct path path;
 	struct inode *inode = alloc_anon_inode(aio_mnt->mnt_sb);
-	if (!inode)
-		return ERR_PTR(-ENOMEM);
+	if (IS_ERR(inode))
+		return ERR_CAST(inode);
 
 	inode->i_mapping->a_ops = &aio_ctx_aops;
 	inode->i_mapping->private_data = ctx;
-- 
cgit 


From 4fdb793ffe262cfc0b796d3b2cd05ca3b687deb9 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 13 Nov 2013 10:56:27 +0300
Subject: locks: missing unlock on error in generic_add_lease()

We should unlock here before returning.

Fixes: df4e8d2c1d2b ('locks: implement delegations')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/locks.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/locks.c b/fs/locks.c
index f99d52bdd05a..92a0f0a52b06 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -1494,6 +1494,7 @@ static int generic_add_lease(struct file *filp, long arg, struct file_lock **flp
 
 	if (is_deleg && arg == F_WRLCK) {
 		/* Write delegations are not currently supported: */
+		mutex_unlock(&inode->i_mutex);
 		WARN_ON_ONCE(1);
 		return -EINVAL;
 	}
-- 
cgit 


From 106dd5afde3cd10db7e1370b6ddc77f0b2496a75 Mon Sep 17 00:00:00 2001
From: Michael wang <wangyun@linux.vnet.ibm.com>
Date: Wed, 13 Nov 2013 11:10:56 +0800
Subject: sched: Fix endless sync_sched/rcu() loop inside _cpu_down()

Commit 6acce3ef8:

	sched: Remove get_online_cpus() usage

tries to do sync_sched/rcu() inside _cpu_down() but triggers:

	INFO: task swapper/0:1 blocked for more than 120 seconds.
	...
	[<ffffffff811263dc>] synchronize_rcu+0x2c/0x30
	[<ffffffff81d1bd82>] _cpu_down+0x2b2/0x340
	...

It was caused by that in the rcu boost case we rely on smpboot thread to
finish the rcu callback, which has already been parked before sync in here
and leads to the endless sync_sched/rcu().

This patch exchanges the sequence of smpboot_park_threads() and
sync_sched/rcu() to fix the bug.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Tested-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Michael Wang <wangyun@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/5282EDC0.6060003@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/cpu.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/kernel/cpu.c b/kernel/cpu.c
index 63aa50d7ce1e..2227b58734a7 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -306,7 +306,6 @@ static int __ref _cpu_down(unsigned int cpu, int tasks_frozen)
 				__func__, cpu);
 		goto out_release;
 	}
-	smpboot_park_threads(cpu);
 
 	/*
 	 * By now we've cleared cpu_active_mask, wait for all preempt-disabled
@@ -315,12 +314,16 @@ static int __ref _cpu_down(unsigned int cpu, int tasks_frozen)
 	 *
 	 * For CONFIG_PREEMPT we have preemptible RCU and its sync_rcu() might
 	 * not imply sync_sched(), so explicitly call both.
+	 *
+	 * Do sync before park smpboot threads to take care the rcu boost case.
 	 */
 #ifdef CONFIG_PREEMPT
 	synchronize_sched();
 #endif
 	synchronize_rcu();
 
+	smpboot_park_threads(cpu);
+
 	/*
 	 * So now all preempt/rcu users must observe !cpu_active().
 	 */
-- 
cgit 


From 46a73e8a1c1720f7713b5e2df68e9dd272015b5d Mon Sep 17 00:00:00 2001
From: Rik van Riel <riel@redhat.com>
Date: Mon, 11 Nov 2013 19:29:25 -0500
Subject: sched/numa: Fix NULL pointer dereference in task_numa_migrate()

The cpusets code can split up the scheduler's domain tree into
smaller domains.  Some of those smaller domains may not cross
NUMA nodes at all, leading to a NULL pointer dereference on the
per-cpu sd_numa pointer.

Tasks cannot be migrated out of their domain, so the patch
also sets p->numa_preferred_nid to whereever they are, to
prevent the migration from being retried over and over again.

Reported-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Mel Gorman <mgorman@suse.de>
Link: http://lkml.kernel.org/n/tip-oosqomw0Jput0Jkvoowhrqtu@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index df77c605c7a6..c11e36ff5ea0 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1201,9 +1201,21 @@ static int task_numa_migrate(struct task_struct *p)
 	 */
 	rcu_read_lock();
 	sd = rcu_dereference(per_cpu(sd_numa, env.src_cpu));
-	env.imbalance_pct = 100 + (sd->imbalance_pct - 100) / 2;
+	if (sd)
+		env.imbalance_pct = 100 + (sd->imbalance_pct - 100) / 2;
 	rcu_read_unlock();
 
+	/*
+	 * Cpusets can break the scheduler domain tree into smaller
+	 * balance domains, some of which do not cross NUMA boundaries.
+	 * Tasks that are "trapped" in such domains cannot be migrated
+	 * elsewhere, so there is no point in (re)trying.
+	 */
+	if (unlikely(!sd)) {
+		p->numa_preferred_nid = cpu_to_node(task_cpu(p));
+		return -EINVAL;
+	}
+
 	taskweight = task_weight(p, env.src_nid);
 	groupweight = group_weight(p, env.src_nid);
 	update_numa_stats(&env.src_stats, env.src_nid);
-- 
cgit 


From 5eca82a9ac2c961cfbd26a4b6f43e6e3747a71dd Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Wed, 6 Nov 2013 18:47:57 +0100
Subject: sched/numa: Cure update_numa_stats() vs. hotplug

Because we're completely unserialized against hotplug its well
possible to try and generate numa stats for an offlined node.

Bail out early (and avoid a /0) in this case. The resulting stats are
all 0 which should result in an undesirable balance target -- not to
mention that actually trying to migrate to an offline CPU will fail.

Reported-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Mel Gorman <mgorman@suse.de>
Link: http://lkml.kernel.org/n/tip-orja0qylcvyhxfsuebcyL5sI@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index c11e36ff5ea0..201be782b5b3 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1000,7 +1000,7 @@ struct numa_stats {
  */
 static void update_numa_stats(struct numa_stats *ns, int nid)
 {
-	int cpu;
+	int cpu, cpus = 0;
 
 	memset(ns, 0, sizeof(*ns));
 	for_each_cpu(cpu, cpumask_of_node(nid)) {
@@ -1009,8 +1009,21 @@ static void update_numa_stats(struct numa_stats *ns, int nid)
 		ns->nr_running += rq->nr_running;
 		ns->load += weighted_cpuload(cpu);
 		ns->power += power_of(cpu);
+
+		cpus++;
 	}
 
+	/*
+	 * If we raced with hotplug and there are no CPUs left in our mask
+	 * the @ns structure is NULL'ed and task_numa_compare() will
+	 * not find this node attractive.
+	 *
+	 * We'll either bail at !has_capacity, or we'll detect a huge imbalance
+	 * and bail there.
+	 */
+	if (!cpus)
+		return;
+
 	ns->load = (ns->load * SCHED_POWER_SCALE) / ns->power;
 	ns->capacity = DIV_ROUND_CLOSEST(ns->power, SCHED_POWER_SCALE);
 	ns->has_capacity = (ns->nr_running < ns->capacity);
-- 
cgit 


From 911b2898b3c9fe0048e9485ad1629ed4fce330fd Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Mon, 11 Nov 2013 18:21:56 +0100
Subject: sched: Optimize task_sched_runtime()

Large multi-threaded apps like to hit this using do_sys_times() and
then queue up on the rq->lock.

Avoid when possible.

Larry reported ~20% performance increase his test case.

Reported-by: Larry Woodman <lwoodman@redhat.com>
Suggested-by: Paul Turner <pjt@google.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20131111172925.GG26898@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/core.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 1deccd78be98..c1808606ee5f 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2253,6 +2253,20 @@ unsigned long long task_sched_runtime(struct task_struct *p)
 	struct rq *rq;
 	u64 ns = 0;
 
+#if defined(CONFIG_64BIT) && defined(CONFIG_SMP)
+	/*
+	 * 64-bit doesn't need locks to atomically read a 64bit value.
+	 * So we have a optimization chance when the task's delta_exec is 0.
+	 * Reading ->on_cpu is racy, but this is ok.
+	 *
+	 * If we race with it leaving cpu, we'll take a lock. So we're correct.
+	 * If we race with it entering cpu, unaccounted time is 0. This is
+	 * indistinguishable from the read occurring a few cycles earlier.
+	 */
+	if (!p->on_cpu)
+		return p->se.sum_exec_runtime;
+#endif
+
 	rq = task_rq_lock(p, &flags);
 	ns = p->se.sum_exec_runtime + do_task_delta_exec(p, rq);
 	task_rq_unlock(rq, p, &flags);
-- 
cgit 


From 85b088e934b9943322bfe37077289ae60f1b3414 Mon Sep 17 00:00:00 2001
From: Michal Nazarewicz <mina86@mina86.com>
Date: Sun, 10 Nov 2013 20:42:01 +0100
Subject: sched/fair: Avoid integer overflow

sa->runnable_avg_sum is of type u32 but after shifting it by NICE_0_SHIFT
bits it is promoted to u64.  This of course makes no sense, since the
result will never be more then 32-bit long.  Casting sa->runnable_avg_sum
to u64 before it is shifted, fixes this problem.

Reviewed-by: Ben Segall <bsegall@google.com>
Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1384112521-25177-1-git-send-email-mpn@google.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 201be782b5b3..e8b652ebe027 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2178,7 +2178,7 @@ static inline void __update_tg_runnable_avg(struct sched_avg *sa,
 	long contrib;
 
 	/* The fraction of a cpu used by this cfs_rq */
-	contrib = div_u64(sa->runnable_avg_sum << NICE_0_SHIFT,
+	contrib = div_u64((u64)sa->runnable_avg_sum << NICE_0_SHIFT,
 			  sa->runnable_avg_period + 1);
 	contrib -= cfs_rq->tg_runnable_contrib;
 
-- 
cgit 


From 4ec6c2aeab8a909418ac60b782a963cb7257207f Mon Sep 17 00:00:00 2001
From: Li Zhong <zhong@linux.vnet.ibm.com>
Date: Wed, 13 Nov 2013 15:21:51 +0800
Subject: fix unpaired rcu lock in prepend_path()

Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/dcache.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/dcache.c b/fs/dcache.c
index 1f24cd684c51..eacc853a2e3a 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -2924,6 +2924,7 @@ static int prepend_path(const struct path *path,
 restart_mnt:
 	read_seqbegin_or_lock(&mount_lock, &m_seq);
 	seq = 0;
+	rcu_read_lock();
 restart:
 	bptr = *buffer;
 	blen = *buflen;
@@ -2971,6 +2972,9 @@ restart:
 		goto restart;
 	}
 	done_seqretry(&rename_lock, seq);
+
+	if (!(m_seq & 1))
+		rcu_read_unlock();
 	if (need_seqretry(&mount_lock, m_seq)) {
 		m_seq = 1;
 		goto restart_mnt;
-- 
cgit 


From ede4cebce16f5643c61aedd6d88d9070a1d23a68 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Wed, 13 Nov 2013 07:45:40 -0500
Subject: prepend_path() needs to reinitialize dentry/vfsmount/mnt on restarts

... and equivalent is needed in 3.12; it's broken there as well

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/dcache.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/fs/dcache.c b/fs/dcache.c
index eacc853a2e3a..a9dd384c5e80 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -2912,9 +2912,9 @@ static int prepend_path(const struct path *path,
 			const struct path *root,
 			char **buffer, int *buflen)
 {
-	struct dentry *dentry = path->dentry;
-	struct vfsmount *vfsmnt = path->mnt;
-	struct mount *mnt = real_mount(vfsmnt);
+	struct dentry *dentry;
+	struct vfsmount *vfsmnt;
+	struct mount *mnt;
 	int error = 0;
 	unsigned seq, m_seq = 0;
 	char *bptr;
@@ -2929,6 +2929,9 @@ restart:
 	bptr = *buffer;
 	blen = *buflen;
 	error = 0;
+	dentry = path->dentry;
+	vfsmnt = path->mnt;
+	mnt = real_mount(vfsmnt);
 	read_seqbegin_or_lock(&rename_lock, &seq);
 	while (dentry != root->dentry || vfsmnt != root->mnt) {
 		struct dentry * parent;
-- 
cgit 


From 5216d530bbd8581c927b250a11533c2a31b57510 Mon Sep 17 00:00:00 2001
From: Fengguang Wu <fengguang.wu@intel.com>
Date: Sat, 9 Nov 2013 00:55:35 +0800
Subject: locking/lockdep: Mark __lockdep_count_forward_deps() as static

There are new Sparse warnings:

  >> kernel/locking/lockdep.c:1235:15: sparse: symbol '__lockdep_count_forward_deps' was not declared. Should it be static?
  >> kernel/locking/lockdep.c:1261:15: sparse: symbol '__lockdep_count_backward_deps' was not declared. Should it be static?

Please consider folding the attached diff :-)

Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/527d1787.ThzXGoUspZWehFDl\%fengguang.wu@intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/locking/lockdep.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/locking/lockdep.c b/kernel/locking/lockdep.c
index 4e8e14c34e42..576ba756a32d 100644
--- a/kernel/locking/lockdep.c
+++ b/kernel/locking/lockdep.c
@@ -1232,7 +1232,7 @@ static int noop_count(struct lock_list *entry, void *data)
 	return 0;
 }
 
-unsigned long __lockdep_count_forward_deps(struct lock_list *this)
+static unsigned long __lockdep_count_forward_deps(struct lock_list *this)
 {
 	unsigned long  count = 0;
 	struct lock_list *uninitialized_var(target_entry);
@@ -1258,7 +1258,7 @@ unsigned long lockdep_count_forward_deps(struct lock_class *class)
 	return ret;
 }
 
-unsigned long __lockdep_count_backward_deps(struct lock_list *this)
+static unsigned long __lockdep_count_backward_deps(struct lock_list *this)
 {
 	unsigned long  count = 0;
 	struct lock_list *uninitialized_var(target_entry);
-- 
cgit 


From 90d3839b90fe379557dae4a44735a6af78f42885 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Tue, 12 Nov 2013 19:42:14 -0800
Subject: block: Use u64_stats_init() to initialize seqcounts

Now that seqcounts are lockdep enabled objects, we need to explicitly
initialize runtime allocated seqcounts so that lockdep can track them.

Without this patch, Fengguang was seeing:

  [    4.127282] INFO: trying to register non-static key.
  [    4.128027] the code is fine but needs lockdep annotation.
  [    4.128027] turning off the locking correctness validator.
  [    4.128027] CPU: 0 PID: 96 Comm: kworker/u4:1 Not tainted 3.12.0-next-20131108-10601-gbad570d #2
  [    4.128027] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
  [    ...     ]
  [    4.128027] Call Trace:
  [    4.128027]  [<7908e744>] ? console_unlock+0x353/0x380
  [    4.128027]  [<79dc7cf2>] dump_stack+0x48/0x60
  [    4.128027]  [<7908953e>] __lock_acquire.isra.26+0x7e3/0xceb
  [    4.128027]  [<7908a1c5>] lock_acquire+0x71/0x9a
  [    4.128027]  [<794079aa>] ? blk_throtl_bio+0x1c3/0x485
  [    4.128027]  [<7940658b>] throtl_update_dispatch_stats+0x7c/0x153
  [    4.128027]  [<794079aa>] ? blk_throtl_bio+0x1c3/0x485
  [    4.128027]  [<794079aa>] blk_throtl_bio+0x1c3/0x485
  ...

Use u64_stats_init() for all affected data structures, which initializes
the seqcount.

Reported-and-Tested-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
[ Folded in another fix from the mailing list as well as a fix to that fix. Tweaked commit message. ]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1384314134-6895-1-git-send-email-john.stultz@linaro.org
[ So I actually think that the two SOBs from PeterZ are the right depiction of the patch route. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 block/blk-cgroup.h   | 10 ++++++++++
 block/blk-throttle.c | 10 ++++++++++
 block/cfq-iosched.c  | 25 +++++++++++++++++++++++++
 3 files changed, 45 insertions(+)

diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h
index ae6969a7ffd4..1610b22edf09 100644
--- a/block/blk-cgroup.h
+++ b/block/blk-cgroup.h
@@ -402,6 +402,11 @@ struct request_list *__blk_queue_next_rl(struct request_list *rl,
 #define blk_queue_for_each_rl(rl, q)	\
 	for ((rl) = &(q)->root_rl; (rl); (rl) = __blk_queue_next_rl((rl), (q)))
 
+static inline void blkg_stat_init(struct blkg_stat *stat)
+{
+	u64_stats_init(&stat->syncp);
+}
+
 /**
  * blkg_stat_add - add a value to a blkg_stat
  * @stat: target blkg_stat
@@ -458,6 +463,11 @@ static inline void blkg_stat_merge(struct blkg_stat *to, struct blkg_stat *from)
 	blkg_stat_add(to, blkg_stat_read(from));
 }
 
+static inline void blkg_rwstat_init(struct blkg_rwstat *rwstat)
+{
+	u64_stats_init(&rwstat->syncp);
+}
+
 /**
  * blkg_rwstat_add - add a value to a blkg_rwstat
  * @rwstat: target blkg_rwstat
diff --git a/block/blk-throttle.c b/block/blk-throttle.c
index 8331aba9426f..06534049afba 100644
--- a/block/blk-throttle.c
+++ b/block/blk-throttle.c
@@ -256,6 +256,12 @@ static struct throtl_data *sq_to_td(struct throtl_service_queue *sq)
 	}								\
 } while (0)
 
+static void tg_stats_init(struct tg_stats_cpu *tg_stats)
+{
+	blkg_rwstat_init(&tg_stats->service_bytes);
+	blkg_rwstat_init(&tg_stats->serviced);
+}
+
 /*
  * Worker for allocating per cpu stat for tgs. This is scheduled on the
  * system_wq once there are some groups on the alloc_list waiting for
@@ -269,12 +275,16 @@ static void tg_stats_alloc_fn(struct work_struct *work)
 
 alloc_stats:
 	if (!stats_cpu) {
+		int cpu;
+
 		stats_cpu = alloc_percpu(struct tg_stats_cpu);
 		if (!stats_cpu) {
 			/* allocation failed, try again after some time */
 			schedule_delayed_work(dwork, msecs_to_jiffies(10));
 			return;
 		}
+		for_each_possible_cpu(cpu)
+			tg_stats_init(per_cpu_ptr(stats_cpu, cpu));
 	}
 
 	spin_lock_irq(&tg_stats_alloc_lock);
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index 434944cbd761..4d5cec1ad80d 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -1508,6 +1508,29 @@ static void cfq_init_cfqg_base(struct cfq_group *cfqg)
 }
 
 #ifdef CONFIG_CFQ_GROUP_IOSCHED
+static void cfqg_stats_init(struct cfqg_stats *stats)
+{
+	blkg_rwstat_init(&stats->service_bytes);
+	blkg_rwstat_init(&stats->serviced);
+	blkg_rwstat_init(&stats->merged);
+	blkg_rwstat_init(&stats->service_time);
+	blkg_rwstat_init(&stats->wait_time);
+	blkg_rwstat_init(&stats->queued);
+
+	blkg_stat_init(&stats->sectors);
+	blkg_stat_init(&stats->time);
+
+#ifdef CONFIG_DEBUG_BLK_CGROUP
+	blkg_stat_init(&stats->unaccounted_time);
+	blkg_stat_init(&stats->avg_queue_size_sum);
+	blkg_stat_init(&stats->avg_queue_size_samples);
+	blkg_stat_init(&stats->dequeue);
+	blkg_stat_init(&stats->group_wait_time);
+	blkg_stat_init(&stats->idle_time);
+	blkg_stat_init(&stats->empty_time);
+#endif
+}
+
 static void cfq_pd_init(struct blkcg_gq *blkg)
 {
 	struct cfq_group *cfqg = blkg_to_cfqg(blkg);
@@ -1515,6 +1538,8 @@ static void cfq_pd_init(struct blkcg_gq *blkg)
 	cfq_init_cfqg_base(cfqg);
 	cfqg->weight = blkg->blkcg->cfq_weight;
 	cfqg->leaf_weight = blkg->blkcg->cfq_leaf_weight;
+	cfqg_stats_init(&cfqg->stats);
+	cfqg_stats_init(&cfqg->dead_stats);
 }
 
 static void cfq_pd_offline(struct blkcg_gq *blkg)
-- 
cgit 


From 441a9d0e1e827e6433e3487145fbb0c5513301e2 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Wed, 13 Nov 2013 07:52:33 -0500
Subject: qib_fs: fix (some) dcache abuses

* lookup_one_len() really wants i_mutex held on directory.
* leaks galore - just mount ipathfs, then
cd /sys/bus/pci/drivers/qib_ib; echo *:*:*.* >unbind
on a box with that card present and try to umount ipathfs...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 drivers/infiniband/hw/qib/qib_fs.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/infiniband/hw/qib/qib_fs.c b/drivers/infiniband/hw/qib/qib_fs.c
index f247fc6e6182..c61e2a92b3c1 100644
--- a/drivers/infiniband/hw/qib/qib_fs.c
+++ b/drivers/infiniband/hw/qib/qib_fs.c
@@ -456,13 +456,13 @@ static int remove_file(struct dentry *parent, char *name)
 
 	spin_lock(&tmp->d_lock);
 	if (!(d_unhashed(tmp) && tmp->d_inode)) {
-		dget_dlock(tmp);
 		__d_drop(tmp);
 		spin_unlock(&tmp->d_lock);
 		simple_unlink(parent->d_inode, tmp);
 	} else {
 		spin_unlock(&tmp->d_lock);
 	}
+	dput(tmp);
 
 	ret = 0;
 bail:
@@ -491,6 +491,7 @@ static int remove_device_files(struct super_block *sb,
 		goto bail;
 	}
 
+	mutex_lock(&dir->d_inode->i_mutex);
 	remove_file(dir, "counters");
 	remove_file(dir, "counter_names");
 	remove_file(dir, "portcounter_names");
@@ -505,8 +506,10 @@ static int remove_device_files(struct super_block *sb,
 		}
 	}
 	remove_file(dir, "flash");
-	d_delete(dir);
+	mutex_unlock(&dir->d_inode->i_mutex);
 	ret = simple_rmdir(root->d_inode, dir);
+	d_delete(dir);
+	dput(dir);
 
 bail:
 	mutex_unlock(&root->d_inode->i_mutex);
-- 
cgit 


From 02808b427689d46136d9662c5013145f70119f42 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 8 Nov 2013 12:50:24 +0300
Subject: dma: pl330: off by one in pl330_probe()

There are only AMBA_NR_IRQS (2) elements in adev->irq[].  This code
maybe works if the there is a zero directly after the array.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/pl330.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 75328f9870d2..ebd23b036a69 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2922,7 +2922,7 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
 
 	amba_set_drvdata(adev, pdmac);
 
-	for (i = 0; i <= AMBA_NR_IRQS; i++) {
+	for (i = 0; i < AMBA_NR_IRQS; i++) {
 		irq = adev->irq[i];
 		if (irq) {
 			ret = devm_request_irq(&adev->dev, irq,
-- 
cgit 


From 2f986ec6fa57a5dcf77f19f5f0d44b1f680a100f Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 8 Nov 2013 12:51:16 +0300
Subject: dma: pl330: silence a compile warning
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

On 64 bit systems GCC warns that:

drivers/dma/pl330.c: In function ‘pl330_filter’:
drivers/dma/pl330.c:2317:21: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]

It's harmless and I have casted it away.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
---
 drivers/dma/pl330.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index ebd23b036a69..0ee2c547b304 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2314,7 +2314,7 @@ bool pl330_filter(struct dma_chan *chan, void *param)
 		return false;
 
 	peri_id = chan->private;
-	return *peri_id == (unsigned)param;
+	return *peri_id == (unsigned long)param;
 }
 EXPORT_SYMBOL(pl330_filter);
 
-- 
cgit 


From 12850b8d45cb03239ede6df58ad0022aba3f3dc2 Mon Sep 17 00:00:00 2001
From: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Date: Wed, 13 Nov 2013 13:01:49 +0000
Subject: ASoC: arizona: Fix typo in name of EQ coefficient controls

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm5102.c | 8 ++++----
 sound/soc/codecs/wm5110.c | 8 ++++----
 sound/soc/codecs/wm8997.c | 8 ++++----
 3 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/sound/soc/codecs/wm5102.c b/sound/soc/codecs/wm5102.c
index 8bbddc151aa8..a08e8bf6d07c 100644
--- a/sound/soc/codecs/wm5102.c
+++ b/sound/soc/codecs/wm5102.c
@@ -685,13 +685,13 @@ ARIZONA_MIXER_CONTROLS("EQ2", ARIZONA_EQ2MIX_INPUT_1_SOURCE),
 ARIZONA_MIXER_CONTROLS("EQ3", ARIZONA_EQ3MIX_INPUT_1_SOURCE),
 ARIZONA_MIXER_CONTROLS("EQ4", ARIZONA_EQ4MIX_INPUT_1_SOURCE),
 
-SND_SOC_BYTES_MASK("EQ1 Coefficeints", ARIZONA_EQ1_1, 21,
+SND_SOC_BYTES_MASK("EQ1 Coefficients", ARIZONA_EQ1_1, 21,
 		   ARIZONA_EQ1_ENA_MASK),
-SND_SOC_BYTES_MASK("EQ2 Coefficeints", ARIZONA_EQ2_1, 21,
+SND_SOC_BYTES_MASK("EQ2 Coefficients", ARIZONA_EQ2_1, 21,
 		   ARIZONA_EQ2_ENA_MASK),
-SND_SOC_BYTES_MASK("EQ3 Coefficeints", ARIZONA_EQ3_1, 21,
+SND_SOC_BYTES_MASK("EQ3 Coefficients", ARIZONA_EQ3_1, 21,
 		   ARIZONA_EQ3_ENA_MASK),
-SND_SOC_BYTES_MASK("EQ4 Coefficeints", ARIZONA_EQ4_1, 21,
+SND_SOC_BYTES_MASK("EQ4 Coefficients", ARIZONA_EQ4_1, 21,
 		   ARIZONA_EQ4_ENA_MASK),
 
 SOC_SINGLE_TLV("EQ1 B1 Volume", ARIZONA_EQ1_1, ARIZONA_EQ1_B1_GAIN_SHIFT,
diff --git a/sound/soc/codecs/wm5110.c b/sound/soc/codecs/wm5110.c
index bbd64384ca1c..b67ba33546d6 100644
--- a/sound/soc/codecs/wm5110.c
+++ b/sound/soc/codecs/wm5110.c
@@ -101,13 +101,13 @@ ARIZONA_MIXER_CONTROLS("EQ2", ARIZONA_EQ2MIX_INPUT_1_SOURCE),
 ARIZONA_MIXER_CONTROLS("EQ3", ARIZONA_EQ3MIX_INPUT_1_SOURCE),
 ARIZONA_MIXER_CONTROLS("EQ4", ARIZONA_EQ4MIX_INPUT_1_SOURCE),
 
-SND_SOC_BYTES_MASK("EQ1 Coefficeints", ARIZONA_EQ1_1, 21,
+SND_SOC_BYTES_MASK("EQ1 Coefficients", ARIZONA_EQ1_1, 21,
 		   ARIZONA_EQ1_ENA_MASK),
-SND_SOC_BYTES_MASK("EQ2 Coefficeints", ARIZONA_EQ2_1, 21,
+SND_SOC_BYTES_MASK("EQ2 Coefficients", ARIZONA_EQ2_1, 21,
 		   ARIZONA_EQ2_ENA_MASK),
-SND_SOC_BYTES_MASK("EQ3 Coefficeints", ARIZONA_EQ3_1, 21,
+SND_SOC_BYTES_MASK("EQ3 Coefficients", ARIZONA_EQ3_1, 21,
 		   ARIZONA_EQ3_ENA_MASK),
-SND_SOC_BYTES_MASK("EQ4 Coefficeints", ARIZONA_EQ4_1, 21,
+SND_SOC_BYTES_MASK("EQ4 Coefficients", ARIZONA_EQ4_1, 21,
 		   ARIZONA_EQ4_ENA_MASK),
 
 SOC_SINGLE_TLV("EQ1 B1 Volume", ARIZONA_EQ1_1, ARIZONA_EQ1_B1_GAIN_SHIFT,
diff --git a/sound/soc/codecs/wm8997.c b/sound/soc/codecs/wm8997.c
index 2e886caf44de..1392bb3c9254 100644
--- a/sound/soc/codecs/wm8997.c
+++ b/sound/soc/codecs/wm8997.c
@@ -170,13 +170,13 @@ ARIZONA_MIXER_CONTROLS("EQ2", ARIZONA_EQ2MIX_INPUT_1_SOURCE),
 ARIZONA_MIXER_CONTROLS("EQ3", ARIZONA_EQ3MIX_INPUT_1_SOURCE),
 ARIZONA_MIXER_CONTROLS("EQ4", ARIZONA_EQ4MIX_INPUT_1_SOURCE),
 
-SND_SOC_BYTES_MASK("EQ1 Coefficeints", ARIZONA_EQ1_1, 21,
+SND_SOC_BYTES_MASK("EQ1 Coefficients", ARIZONA_EQ1_1, 21,
 		   ARIZONA_EQ1_ENA_MASK),
-SND_SOC_BYTES_MASK("EQ2 Coefficeints", ARIZONA_EQ2_1, 21,
+SND_SOC_BYTES_MASK("EQ2 Coefficients", ARIZONA_EQ2_1, 21,
 		   ARIZONA_EQ2_ENA_MASK),
-SND_SOC_BYTES_MASK("EQ3 Coefficeints", ARIZONA_EQ3_1, 21,
+SND_SOC_BYTES_MASK("EQ3 Coefficients", ARIZONA_EQ3_1, 21,
 		   ARIZONA_EQ3_ENA_MASK),
-SND_SOC_BYTES_MASK("EQ4 Coefficeints", ARIZONA_EQ4_1, 21,
+SND_SOC_BYTES_MASK("EQ4 Coefficients", ARIZONA_EQ4_1, 21,
 		   ARIZONA_EQ4_ENA_MASK),
 
 SOC_SINGLE_TLV("EQ1 B1 Volume", ARIZONA_EQ1_1, ARIZONA_EQ1_B1_GAIN_SHIFT,
-- 
cgit 


From 60c7a3c9c77239d5a7430c42a2c796881716cca1 Mon Sep 17 00:00:00 2001
From: Marcel Holtmann <marcel@holtmann.org>
Date: Sat, 2 Nov 2013 02:36:31 -0700
Subject: Bluetooth: Fix issue with RFCOMM getsockopt operation

The commit 94a86df01082557e2de45865e538d7fb6c46231c seem to have
uncovered a long standing bug that did not trigger so far.

BUG: unable to handle kernel paging request at 00000009dd503502
IP: [<ffffffff815b1868>] rfcomm_sock_getsockopt+0x128/0x200
PGD 0
Oops: 0000 [#1] SMP
Modules linked in: ath5k ath mac80211 cfg80211
CPU: 2 PID: 1459 Comm: bluetoothd Not tainted 3.11.0-133163-gcebd830 #2
Hardware name: System manufacturer System Product Name/P6T DELUXE V2, BIOS
1202    12/22/2010
task: ffff8803304106a0 ti: ffff88033046a000 task.ti: ffff88033046a000
RIP: 0010:[<ffffffff815b1868>]  [<ffffffff815b1868>]
rfcomm_sock_getsockopt+0x128/0x200
RSP: 0018:ffff88033046bed8  EFLAGS: 00010246
RAX: 00000009dd503502 RBX: 0000000000000003 RCX: 00007fffa2ed5548
RDX: 0000000000000003 RSI: 0000000000000012 RDI: ffff88032fd37480
RBP: ffff88033046bf28 R08: 00007fffa2ed554c R09: ffff88032f5707d8
R10: 00007fffa2ed5548 R11: 0000000000000202 R12: ffff880330bbd000
R13: 00007fffa2ed5548 R14: 0000000000000003 R15: 00007fffa2ed554c
FS:  00007fc44cfac700(0000) GS:ffff88033fc80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000009dd503502 CR3: 00000003304c2000 CR4: 00000000000007e0
Stack:
ffff88033046bf28 ffffffff815b0f2f ffff88033046bf18 0002ffff81105ef6
0000000600000000 ffff88032fd37480 0000000000000012 00007fffa2ed5548
0000000000000003 00007fffa2ed554c ffff88033046bf78 ffffffff814c0380
Call Trace:
[<ffffffff815b0f2f>] ? rfcomm_sock_setsockopt+0x5f/0x190
[<ffffffff814c0380>] SyS_getsockopt+0x60/0xb0
[<ffffffff815e0852>] system_call_fastpath+0x16/0x1b
Code: 02 00 00 00 0f 47 d0 4c 89 ef e8 74 13 cd ff 83 f8 01 19 c9 f7 d1 83 e1
f2 e9 4b ff ff ff 0f 1f 44 00 00 49 8b 84 24 70 02 00 00 <4c> 8b 30 4c 89 c0 e8
2d 19 cd ff 85 c0 49 89 d7 b9 f2 ff ff ff
RIP  [<ffffffff815b1868>] rfcomm_sock_getsockopt+0x128/0x200
RSP <ffff88033046bed8>
CR2: 00000009dd503502

It triggers in the following segment of the code:

0x1313 is in rfcomm_sock_getsockopt (net/bluetooth/rfcomm/sock.c:743).
738
739	static int rfcomm_sock_getsockopt_old(struct socket *sock, int optname, char __user *optval, int __user *optlen)
740	{
741		struct sock *sk = sock->sk;
742		struct rfcomm_conninfo cinfo;
743		struct l2cap_conn *conn = l2cap_pi(sk)->chan->conn;
744		int len, err = 0;
745		u32 opt;
746
747		BT_DBG("sk %p", sk);

The l2cap_pi(sk) is wrong here since it should have been rfcomm_pi(sk),
but that socket of course does not contain the low-level connection
details requested here.

Tracking down the actual offending commit, it seems that this has been
introduced when doing some L2CAP refactoring:

commit 8c1d787be4b62d2d1b6f04953eca4bcf7c839d44
Author: Gustavo F. Padovan <padovan@profusion.mobi>
Date:   Wed Apr 13 20:23:55 2011 -0300

@@ -743,6 +743,7 @@ static int rfcomm_sock_getsockopt_old(struct socket *sock, int optname, char __u
        struct sock *sk = sock->sk;
        struct sock *l2cap_sk;
        struct rfcomm_conninfo cinfo;
+       struct l2cap_conn *conn = l2cap_pi(sk)->chan->conn;
        int len, err = 0;
        u32 opt;

@@ -787,8 +788,8 @@ static int rfcomm_sock_getsockopt_old(struct socket *sock, int optname, char __u

                l2cap_sk = rfcomm_pi(sk)->dlc->session->sock->sk;

-               cinfo.hci_handle = l2cap_pi(l2cap_sk)->conn->hcon->handle;
-               memcpy(cinfo.dev_class, l2cap_pi(l2cap_sk)->conn->hcon->dev_class, 3);
+               cinfo.hci_handle = conn->hcon->handle;
+               memcpy(cinfo.dev_class, conn->hcon->dev_class, 3);

The l2cap_sk got accidentally mixed into the sk (which is RFCOMM) and
now causing a problem within getsocketopt() system call. To fix this,
just re-introduce l2cap_sk and make sure the right socket is used for
the low-level connection details.

Reported-by: Fabio Rossi <rossi.f@inwind.it>
Reported-by: Janusz Dziedzic <janusz.dziedzic@gmail.com>
Tested-by: Janusz Dziedzic <janusz.dziedzic@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/rfcomm/sock.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index 30b3721dc6d7..7096cfe3bd5a 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -732,8 +732,9 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c
 static int rfcomm_sock_getsockopt_old(struct socket *sock, int optname, char __user *optval, int __user *optlen)
 {
 	struct sock *sk = sock->sk;
+	struct sock *l2cap_sk;
+	struct l2cap_conn *conn;
 	struct rfcomm_conninfo cinfo;
-	struct l2cap_conn *conn = l2cap_pi(sk)->chan->conn;
 	int len, err = 0;
 	u32 opt;
 
@@ -776,6 +777,9 @@ static int rfcomm_sock_getsockopt_old(struct socket *sock, int optname, char __u
 			break;
 		}
 
+		l2cap_sk = rfcomm_pi(sk)->dlc->session->sock->sk;
+		conn = l2cap_pi(l2cap_sk)->chan->conn;
+
 		memset(&cinfo, 0, sizeof(cinfo));
 		cinfo.hci_handle = conn->hcon->handle;
 		memcpy(cinfo.dev_class, conn->hcon->dev_class, 3);
-- 
cgit 


From c507f138fc7c2025d75b65018810dc0561d0bdb9 Mon Sep 17 00:00:00 2001
From: Seung-Woo Kim <sw0312.kim@samsung.com>
Date: Tue, 5 Nov 2013 16:02:24 +0900
Subject: Bluetooth: Fix RFCOMM bind fail for L2CAP sock

L2CAP socket bind checks its bdaddr type but RFCOMM kernel thread
does not assign proper bdaddr type for L2CAP sock. This can cause
that RFCOMM failure.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/rfcomm/core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index ca957d34b0c8..292fa64a19dd 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -694,6 +694,7 @@ static struct rfcomm_session *rfcomm_session_create(bdaddr_t *src,
 	addr.l2_family = AF_BLUETOOTH;
 	addr.l2_psm    = 0;
 	addr.l2_cid    = 0;
+	addr.l2_bdaddr_type = BDADDR_BREDR;
 	*err = kernel_bind(sock, (struct sockaddr *) &addr, sizeof(addr));
 	if (*err < 0)
 		goto failed;
@@ -1983,6 +1984,7 @@ static int rfcomm_add_listener(bdaddr_t *ba)
 	addr.l2_family = AF_BLUETOOTH;
 	addr.l2_psm    = __constant_cpu_to_le16(RFCOMM_PSM);
 	addr.l2_cid    = 0;
+	addr.l2_bdaddr_type = BDADDR_BREDR;
 	err = kernel_bind(sock, (struct sockaddr *) &addr, sizeof(addr));
 	if (err < 0) {
 		BT_ERR("Bind failed %d", err);
-- 
cgit 


From 8992da099332db896144465a01ad636f58bdebd9 Mon Sep 17 00:00:00 2001
From: Seung-Woo Kim <sw0312.kim@samsung.com>
Date: Tue, 5 Nov 2013 17:15:42 +0900
Subject: Bluetooth: Fix to set proper bdaddr_type for RFCOMM connect

L2CAP socket validates proper bdaddr_type for connect, so this
patch fixes to set explictly bdaddr_type for RFCOMM connect.

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/rfcomm/core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/bluetooth/rfcomm/core.c b/net/bluetooth/rfcomm/core.c
index 292fa64a19dd..ce7521120d69 100644
--- a/net/bluetooth/rfcomm/core.c
+++ b/net/bluetooth/rfcomm/core.c
@@ -720,6 +720,7 @@ static struct rfcomm_session *rfcomm_session_create(bdaddr_t *src,
 	addr.l2_family = AF_BLUETOOTH;
 	addr.l2_psm    = __constant_cpu_to_le16(RFCOMM_PSM);
 	addr.l2_cid    = 0;
+	addr.l2_bdaddr_type = BDADDR_BREDR;
 	*err = kernel_connect(sock, (struct sockaddr *) &addr, sizeof(addr), O_NONBLOCK);
 	if (*err == 0 || *err == -EINPROGRESS)
 		return s;
-- 
cgit 


From 31e8ce80baa7eaed9eec611deba982b24beed9e5 Mon Sep 17 00:00:00 2001
From: Seung-Woo Kim <sw0312.kim@samsung.com>
Date: Tue, 5 Nov 2013 18:46:33 +0900
Subject: Bluetooth: Fix crash in l2cap_chan_send after l2cap_chan_del

Removing a bond and disconnecting from a specific remote device
can cause l2cap_chan_send() is called after l2cap_chan_del() is
called. This causes following crash.

[ 1384.972086] Unable to handle kernel NULL pointer dereference at virtual address 00000008
[ 1384.972090] pgd = c0004000
[ 1384.972125] [00000008] *pgd=00000000
[ 1384.972137] Internal error: Oops: 17 [#1] PREEMPT SMP ARM
[ 1384.972144] Modules linked in:
[ 1384.972156] CPU: 0 PID: 841 Comm: krfcommd Not tainted 3.10.14-gdf22a71-dirty #435
[ 1384.972162] task: df29a100 ti: df178000 task.ti: df178000
[ 1384.972182] PC is at l2cap_create_basic_pdu+0x30/0x1ac
[ 1384.972191] LR is at l2cap_chan_send+0x100/0x1d4
[ 1384.972198] pc : [<c051d250>]    lr : [<c0521c78>]    psr: 40000113
[ 1384.972198] sp : df179d40  ip : c083a010  fp : 00000008
[ 1384.972202] r10: 00000004  r9 : 0000065a  r8 : 000003f5
[ 1384.972206] r7 : 00000000  r6 : 00000000  r5 : df179e84  r4 : da557000
[ 1384.972210] r3 : 00000000  r2 : 00000004  r1 : df179e84  r0 : 00000000
[ 1384.972215] Flags: nZcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment kernel
[ 1384.972220] Control: 10c53c7d  Table: 5c8b004a  DAC: 00000015
[ 1384.972224] Process krfcommd (pid: 841, stack limit = 0xdf178238)
[ 1384.972229] Stack: (0xdf179d40 to 0xdf17a000)
[ 1384.972238] 9d40: 00000000 da557000 00000004 df179e84 00000004 000003f5 0000065a 00000000
[ 1384.972245] 9d60: 00000008 c0521c78 df179e84 da557000 00000004 da557204 de0c6800 df179e84
[ 1384.972253] 9d80: da557000 00000004 da557204 c0526b7c 00000004 df724000 df179e84 00000004
[ 1384.972260] 9da0: df179db0 df29a100 c083bc48 c045481c 00000001 00000000 00000000 00000000
[ 1384.972267] 9dc0: 00000000 df29a100 00000000 00000000 00000000 00000000 df179e10 00000000
[ 1384.972274] 9de0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 1384.972281] 9e00: 00000000 00000000 00000000 00000000 df179e4c c000ec80 c0b538c0 00000004
[ 1384.972288] 9e20: df724000 df178000 00000000 df179e84 c0b538c0 00000000 df178000 c07f4570
[ 1384.972295] 9e40: dcad9c00 df179e74 c07f4394 df179e60 df178000 00000000 df179e84 de247010
[ 1384.972303] 9e60: 00000043 c0454dec 00000001 00000004 df315c00 c0530598 00000004 df315c0c
[ 1384.972310] 9e80: ffffc32c 00000000 00000000 df179ea0 00000001 00000000 00000000 00000000
[ 1384.972317] 9ea0: df179ebc 00000004 df315c00 c05df838 00000000 c0530810 c07d08c0 d7017303
[ 1384.972325] 9ec0: 6ec245b9 00000000 df315c00 c0531b04 c07f3fe0 c07f4018 da67a300 df315c00
[ 1384.972332] 9ee0: 00000000 c05334e0 df315c00 df315b80 df315c00 de0c6800 da67a300 00000000
[ 1384.972339] 9f00: de0c684c c0533674 df204100 df315c00 df315c00 df204100 df315c00 c082b138
[ 1384.972347] 9f20: c053385c c0533754 a0000113 df178000 00000001 c083bc48 00000000 c053385c
[ 1384.972354] 9f40: 00000000 00000000 00000000 c05338c4 00000000 df9f0000 df9f5ee4 df179f6c
[ 1384.972360] 9f60: df178000 c0049db4 00000000 00000000 c07f3ff8 00000000 00000000 00000000
[ 1384.972368] 9f80: df179f80 df179f80 00000000 00000000 df179f90 df179f90 df9f5ee4 c0049cfc
[ 1384.972374] 9fa0: 00000000 00000000 00000000 c000f168 00000000 00000000 00000000 00000000
[ 1384.972381] 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[ 1384.972388] 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00010000 00000600
[ 1384.972411] [<c051d250>] (l2cap_create_basic_pdu+0x30/0x1ac) from [<c0521c78>] (l2cap_chan_send+0x100/0x1d4)
[ 1384.972425] [<c0521c78>] (l2cap_chan_send+0x100/0x1d4) from [<c0526b7c>] (l2cap_sock_sendmsg+0xa8/0x104)
[ 1384.972440] [<c0526b7c>] (l2cap_sock_sendmsg+0xa8/0x104) from [<c045481c>] (sock_sendmsg+0xac/0xcc)
[ 1384.972453] [<c045481c>] (sock_sendmsg+0xac/0xcc) from [<c0454dec>] (kernel_sendmsg+0x2c/0x34)
[ 1384.972469] [<c0454dec>] (kernel_sendmsg+0x2c/0x34) from [<c0530598>] (rfcomm_send_frame+0x58/0x7c)
[ 1384.972481] [<c0530598>] (rfcomm_send_frame+0x58/0x7c) from [<c0530810>] (rfcomm_send_ua+0x98/0xbc)
[ 1384.972494] [<c0530810>] (rfcomm_send_ua+0x98/0xbc) from [<c0531b04>] (rfcomm_recv_disc+0xac/0x100)
[ 1384.972506] [<c0531b04>] (rfcomm_recv_disc+0xac/0x100) from [<c05334e0>] (rfcomm_recv_frame+0x144/0x264)
[ 1384.972519] [<c05334e0>] (rfcomm_recv_frame+0x144/0x264) from [<c0533674>] (rfcomm_process_rx+0x74/0xfc)
[ 1384.972531] [<c0533674>] (rfcomm_process_rx+0x74/0xfc) from [<c0533754>] (rfcomm_process_sessions+0x58/0x160)
[ 1384.972543] [<c0533754>] (rfcomm_process_sessions+0x58/0x160) from [<c05338c4>] (rfcomm_run+0x68/0x110)
[ 1384.972558] [<c05338c4>] (rfcomm_run+0x68/0x110) from [<c0049db4>] (kthread+0xb8/0xbc)
[ 1384.972576] [<c0049db4>] (kthread+0xb8/0xbc) from [<c000f168>] (ret_from_fork+0x14/0x2c)
[ 1384.972586] Code: e3100004 e1a07003 e5946000 1a000057 (e5969008)
[ 1384.972614] ---[ end trace 6170b7ce00144e8c ]---

Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
---
 net/bluetooth/l2cap_core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
index 63fa11109a1c..11b5d097f602 100644
--- a/net/bluetooth/l2cap_core.c
+++ b/net/bluetooth/l2cap_core.c
@@ -2452,6 +2452,9 @@ int l2cap_chan_send(struct l2cap_chan *chan, struct msghdr *msg, size_t len,
 	int err;
 	struct sk_buff_head seg_queue;
 
+	if (!chan->conn)
+		return -ENOTCONN;
+
 	/* Connectionless channel */
 	if (chan->chan_type == L2CAP_CHAN_CONN_LESS) {
 		skb = l2cap_create_connless_pdu(chan, msg, len, priority);
-- 
cgit 


From 86ca9eac31d0d8c4fe61b5726e6d63197bc435a6 Mon Sep 17 00:00:00 2001
From: Johan Hedberg <johan.hedberg@intel.com>
Date: Tue, 5 Nov 2013 11:30:39 +0200
Subject: Bluetooth: Fix rejecting SMP security request in slave role

The SMP security request is for a slave role device to request the
master role device to initiate a pairing request. If we receive this
command while we're in the slave role we should reject it appropriately.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
 net/bluetooth/smp.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c
index b5562abdd6e0..ccad6c1e3ec3 100644
--- a/net/bluetooth/smp.c
+++ b/net/bluetooth/smp.c
@@ -739,6 +739,9 @@ static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb)
 
 	BT_DBG("conn %p", conn);
 
+	if (!(conn->hcon->link_mode & HCI_LM_MASTER))
+		return SMP_CMD_NOTSUPP;
+
 	hcon->pending_sec_level = authreq_to_seclevel(rp->auth_req);
 
 	if (smp_ltk_encrypt(conn, hcon->pending_sec_level))
-- 
cgit 


From f446043f1aa74c2d699db48ba4a7a075b88dc14d Mon Sep 17 00:00:00 2001
From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Date: Wed, 13 Nov 2013 12:33:00 +0100
Subject: regulator: fixed: fix regulator_list_voltage() for regression

Commit c368e5fc2a190923b786f2de3e79430ea3566a25 "regulator: fixed:
get rid of {get|list}_voltage()" broke regulator_list_voltage() for
the fixed regulator, because an earlier commit
5a523605afa7d3b54b2e7041f8c9e6bc39872a7e "regulator: core: provide
fixed voltage in desc for single voltage rail" missed to add support
for the fixed-voltage special case to that function. This patch
fixes that regression.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/regulator/core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 6382f0af353b..3fe13130baec 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2184,6 +2184,9 @@ int regulator_list_voltage(struct regulator *regulator, unsigned selector)
 	struct regulator_ops	*ops = rdev->desc->ops;
 	int			ret;
 
+	if (rdev->desc->fixed_uV && rdev->desc->n_voltages == 1 && !selector)
+		return rdev->desc->fixed_uV;
+
 	if (!ops->list_voltage || selector >= rdev->desc->n_voltages)
 		return -EINVAL;
 
-- 
cgit 


From 480f439c3db0d45d817d66caf3fa8e81a6fac01a Mon Sep 17 00:00:00 2001
From: Michal Marek <mmarek@suse.cz>
Date: Mon, 11 Nov 2013 14:23:08 +0100
Subject: kallsyms: Revert back to 128 max symbol length

This reverts commits
f3462aa (Kbuild: Handle longer symbols in kallsyms.c) and
eea0e9c (kbuild: Increase kallsyms max symbol length)
except for the added overflow check. The reason is a regression caused
by increasing the buffer:
http://marc.info/?l=linux-kernel&m=138387700415675.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Joe Mario <jmario@redhat.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
---
 include/linux/kallsyms.h | 2 +-
 scripts/kallsyms.c       | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h
index 56488708da4b..6883e197acb9 100644
--- a/include/linux/kallsyms.h
+++ b/include/linux/kallsyms.h
@@ -9,7 +9,7 @@
 #include <linux/kernel.h>
 #include <linux/stddef.h>
 
-#define KSYM_NAME_LEN 255
+#define KSYM_NAME_LEN 128
 #define KSYM_SYMBOL_LEN (sizeof("%s+%#lx/%#lx [%s]") + (KSYM_NAME_LEN - 1) + \
 			 2*(BITS_PER_LONG*3/10) + (MODULE_NAME_LEN - 1) + 1)
 
diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index 48afa2020b00..518da86ce62a 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -27,7 +27,7 @@
 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof(arr[0]))
 #endif
 
-#define KSYM_NAME_LEN		255
+#define KSYM_NAME_LEN		128
 
 struct sym_entry {
 	unsigned long long addr;
-- 
cgit 


From b39898cd4077f4b6ec706e717c938751c34e1dc4 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 6 Nov 2013 12:30:07 +0100
Subject: genirq: Prevent spurious detection for unconditionally polled
 interrupts

On a 68k platform a couple of interrupts are demultiplexed and
"polled" from a top level interrupt. Unfortunately there is no way to
determine which of the sub interrupts raised the top level interrupt,
so all of the demultiplexed interrupt handlers need to be
invoked. Given a high enough frequency this can trigger the spurious
interrupt detection mechanism, if one of the demultiplex interrupts
returns IRQ_NONE continuously. But this is a false positive as the
polling causes this behaviour and not buggy hardware/software.

Introduce IRQ_POLLED which can be set at interrupt chip setup time via
irq_set_status_flags(). The flag excludes the interrupt from the
spurious detector and from all core polling activities.

Reported-and-tested-by: Michael Schmitz <schmitzmic@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-m68k@vger.kernel.org
Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1311061149250.23353@ionos.tec.linutronix.de
---
 include/linux/irq.h   |  7 ++++++-
 kernel/irq/settings.h |  7 +++++++
 kernel/irq/spurious.c | 12 +++++++++---
 3 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/include/linux/irq.h b/include/linux/irq.h
index 56bb0dc8b7d4..7dc10036eff5 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -70,6 +70,9 @@ typedef	void (*irq_preflow_handler_t)(struct irq_data *data);
  * IRQ_MOVE_PCNTXT		- Interrupt can be migrated from process context
  * IRQ_NESTED_TRHEAD		- Interrupt nests into another thread
  * IRQ_PER_CPU_DEVID		- Dev_id is a per-cpu variable
+ * IRQ_IS_POLLED		- Always polled by another interrupt. Exclude
+ *				  it from the spurious interrupt detection
+ *				  mechanism and from core side polling.
  */
 enum {
 	IRQ_TYPE_NONE		= 0x00000000,
@@ -94,12 +97,14 @@ enum {
 	IRQ_NESTED_THREAD	= (1 << 15),
 	IRQ_NOTHREAD		= (1 << 16),
 	IRQ_PER_CPU_DEVID	= (1 << 17),
+	IRQ_IS_POLLED		= (1 << 18),
 };
 
 #define IRQF_MODIFY_MASK	\
 	(IRQ_TYPE_SENSE_MASK | IRQ_NOPROBE | IRQ_NOREQUEST | \
 	 IRQ_NOAUTOEN | IRQ_MOVE_PCNTXT | IRQ_LEVEL | IRQ_NO_BALANCING | \
-	 IRQ_PER_CPU | IRQ_NESTED_THREAD | IRQ_NOTHREAD | IRQ_PER_CPU_DEVID)
+	 IRQ_PER_CPU | IRQ_NESTED_THREAD | IRQ_NOTHREAD | IRQ_PER_CPU_DEVID | \
+	 IRQ_IS_POLLED)
 
 #define IRQ_NO_BALANCING_MASK	(IRQ_PER_CPU | IRQ_NO_BALANCING)
 
diff --git a/kernel/irq/settings.h b/kernel/irq/settings.h
index 1162f1030f18..3320b84cc60f 100644
--- a/kernel/irq/settings.h
+++ b/kernel/irq/settings.h
@@ -14,6 +14,7 @@ enum {
 	_IRQ_NO_BALANCING	= IRQ_NO_BALANCING,
 	_IRQ_NESTED_THREAD	= IRQ_NESTED_THREAD,
 	_IRQ_PER_CPU_DEVID	= IRQ_PER_CPU_DEVID,
+	_IRQ_IS_POLLED		= IRQ_IS_POLLED,
 	_IRQF_MODIFY_MASK	= IRQF_MODIFY_MASK,
 };
 
@@ -26,6 +27,7 @@ enum {
 #define IRQ_NOAUTOEN		GOT_YOU_MORON
 #define IRQ_NESTED_THREAD	GOT_YOU_MORON
 #define IRQ_PER_CPU_DEVID	GOT_YOU_MORON
+#define IRQ_IS_POLLED		GOT_YOU_MORON
 #undef IRQF_MODIFY_MASK
 #define IRQF_MODIFY_MASK	GOT_YOU_MORON
 
@@ -147,3 +149,8 @@ static inline bool irq_settings_is_nested_thread(struct irq_desc *desc)
 {
 	return desc->status_use_accessors & _IRQ_NESTED_THREAD;
 }
+
+static inline bool irq_settings_is_polled(struct irq_desc *desc)
+{
+	return desc->status_use_accessors & _IRQ_IS_POLLED;
+}
diff --git a/kernel/irq/spurious.c b/kernel/irq/spurious.c
index 7b5f012bde9d..a1d8cc63b56e 100644
--- a/kernel/irq/spurious.c
+++ b/kernel/irq/spurious.c
@@ -67,8 +67,13 @@ static int try_one_irq(int irq, struct irq_desc *desc, bool force)
 
 	raw_spin_lock(&desc->lock);
 
-	/* PER_CPU and nested thread interrupts are never polled */
-	if (irq_settings_is_per_cpu(desc) || irq_settings_is_nested_thread(desc))
+	/*
+	 * PER_CPU, nested thread interrupts and interrupts explicitely
+	 * marked polled are excluded from polling.
+	 */
+	if (irq_settings_is_per_cpu(desc) ||
+	    irq_settings_is_nested_thread(desc) ||
+	    irq_settings_is_polled(desc))
 		goto out;
 
 	/*
@@ -268,7 +273,8 @@ try_misrouted_irq(unsigned int irq, struct irq_desc *desc,
 void note_interrupt(unsigned int irq, struct irq_desc *desc,
 		    irqreturn_t action_ret)
 {
-	if (desc->istate & IRQS_POLL_INPROGRESS)
+	if (desc->istate & IRQS_POLL_INPROGRESS ||
+	    irq_settings_is_polled(desc))
 		return;
 
 	/* we get here again via the threaded handler */
-- 
cgit 


From d183b4fc463489b6bbe05c99afa0257a6fe578eb Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 13 Nov 2013 16:58:10 +0100
Subject: ALSA: hda - Don't clear the power state at snd_hda_codec_reset()

snd_hda_codec_reset() is called either in resetting the whole setup at
error paths or hwdep clear/reconfig sysfs triggers.  But all of these
don't assume that the power has to be off, rather they want to keep
the power state unchanged (e.g. reconfig_codec() calls the power
up/down by itself).  Thus, unconditionally clearing the power state in
snd_hda_codec_reset() leads to the inconsistency, confuses the further
operation.   This patch gets rid of the lines doing that bad thing.

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_codec.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index dd5403d40830..afb90f48867f 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -2579,9 +2579,6 @@ int snd_hda_codec_reset(struct hda_codec *codec)
 	cancel_delayed_work_sync(&codec->jackpoll_work);
 #ifdef CONFIG_PM
 	cancel_delayed_work_sync(&codec->power_work);
-	codec->power_on = 0;
-	codec->power_transition = 0;
-	codec->power_jiffies = jiffies;
 	flush_workqueue(bus->workq);
 #endif
 	snd_hda_ctls_clear(codec);
-- 
cgit 


From 44832a71f377d9eae1d97afedad4d0d6d51fc485 Mon Sep 17 00:00:00 2001
From: Vasily Khoruzhick <anarsoul@gmail.com>
Date: Wed, 13 Nov 2013 13:13:35 +0300
Subject: ALSA: usb-audio: add front jack channel selector for EMU0204

Add support for front jack channel selector which is present on EMU0204.
It allows to get 4 channels out of this soundcard.

Tested-by: Yury Bushmelev <jay@jay-tech.ru>
Signed-off-by: Vasily Khoruzhick <anarsoul@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/mixer_quirks.c | 90 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 90 insertions(+)

diff --git a/sound/usb/mixer_quirks.c b/sound/usb/mixer_quirks.c
index d42a584cf829..3454262358b3 100644
--- a/sound/usb/mixer_quirks.c
+++ b/sound/usb/mixer_quirks.c
@@ -433,6 +433,89 @@ static void snd_audigy2nx_proc_read(struct snd_info_entry *entry,
 	}
 }
 
+/* EMU0204 */
+static int snd_emu0204_ch_switch_info(struct snd_kcontrol *kcontrol,
+				      struct snd_ctl_elem_info *uinfo)
+{
+	static const char *texts[2] = {"1/2",
+				       "3/4"
+	};
+
+	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
+	uinfo->count = 1;
+	uinfo->value.enumerated.items = 2;
+	if (uinfo->value.enumerated.item > 1)
+		uinfo->value.enumerated.item = 1;
+	strcpy(uinfo->value.enumerated.name,
+		texts[uinfo->value.enumerated.item]);
+
+	return 0;
+}
+
+static int snd_emu0204_ch_switch_get(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	ucontrol->value.enumerated.item[0] = kcontrol->private_value;
+	return 0;
+}
+
+static int snd_emu0204_ch_switch_put(struct snd_kcontrol *kcontrol,
+				     struct snd_ctl_elem_value *ucontrol)
+{
+	struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
+	unsigned int value = ucontrol->value.enumerated.item[0];
+	int err, changed;
+	unsigned char buf[2];
+
+	if (value > 1)
+		return -EINVAL;
+
+	buf[0] = 0x01;
+	buf[1] = value ? 0x02 : 0x01;
+
+	changed = value != kcontrol->private_value;
+	down_read(&mixer->chip->shutdown_rwsem);
+	if (mixer->chip->shutdown) {
+		err = -ENODEV;
+		goto out;
+	}
+	err = snd_usb_ctl_msg(mixer->chip->dev,
+		      usb_sndctrlpipe(mixer->chip->dev, 0), UAC_SET_CUR,
+		      USB_RECIP_INTERFACE | USB_TYPE_CLASS | USB_DIR_OUT,
+		      0x0400, 0x0e00, buf, 2);
+ out:
+	up_read(&mixer->chip->shutdown_rwsem);
+	if (err < 0)
+		return err;
+	kcontrol->private_value = value;
+	return changed;
+}
+
+
+static struct snd_kcontrol_new snd_emu0204_controls[] = {
+	{
+		.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+		.name = "Front Jack Channels",
+		.info = snd_emu0204_ch_switch_info,
+		.get = snd_emu0204_ch_switch_get,
+		.put = snd_emu0204_ch_switch_put,
+		.private_value = 0,
+	},
+};
+
+static int snd_emu0204_controls_create(struct usb_mixer_interface *mixer)
+{
+	int i, err;
+
+	for (i = 0; i < ARRAY_SIZE(snd_emu0204_controls); ++i) {
+		err = snd_ctl_add(mixer->chip->card,
+			snd_ctl_new1(&snd_emu0204_controls[i], mixer));
+		if (err < 0)
+			return err;
+	}
+
+	return 0;
+}
 /* ASUS Xonar U1 / U3 controls */
 
 static int snd_xonar_u1_switch_get(struct snd_kcontrol *kcontrol,
@@ -1545,6 +1628,13 @@ int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
 					      snd_audigy2nx_proc_read);
 		break;
 
+	/* EMU0204 */
+	case USB_ID(0x041e, 0x3f19):
+		err = snd_emu0204_controls_create(mixer);
+		if (err < 0)
+			break;
+		break;
+
 	case USB_ID(0x0763, 0x2030): /* M-Audio Fast Track C400 */
 	case USB_ID(0x0763, 0x2031): /* M-Audio Fast Track C400 */
 		err = snd_c400_create_mixer(mixer);
-- 
cgit 


From afed4dbe3a043dbd833a53b6b4951e155708afd2 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 13 Nov 2013 17:15:00 +0100
Subject: ASoC: blackfin: Fix missing break

Fixes: 4b2ffc205cb9 ('ASoC: Blackfin I2S: add 8-bit sample support')
Reported-by: David Binderman
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
---
 sound/soc/blackfin/bf5xx-i2s.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/blackfin/bf5xx-i2s.c b/sound/soc/blackfin/bf5xx-i2s.c
index 9a174fc47d39..39d774839b3e 100644
--- a/sound/soc/blackfin/bf5xx-i2s.c
+++ b/sound/soc/blackfin/bf5xx-i2s.c
@@ -121,6 +121,7 @@ static int bf5xx_i2s_hw_params(struct snd_pcm_substream *substream,
 		bf5xx_i2s->tcr2 |= 7;
 		bf5xx_i2s->rcr2 |= 7;
 		sport_handle->wdsize = 1;
+		break;
 	case SNDRV_PCM_FORMAT_S16_LE:
 		bf5xx_i2s->tcr2 |= 15;
 		bf5xx_i2s->rcr2 |= 15;
-- 
cgit 


From 97826c821ec6724fc359d9b7840dc10af914c641 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Wed, 13 Nov 2013 16:51:06 +0000
Subject: KEYS: Fix error handling in big_key instantiation

In the big_key_instantiate() function we return 0 if kernel_write() returns us
an error rather than returning an error.  This can potentially lead to
dentry_open() giving a BUG when called from big_key_read() with an unset
tmpfile path.

	------------[ cut here ]------------
	kernel BUG at fs/open.c:798!
	...
	RIP: 0010:[<ffffffff8119bbd1>] dentry_open+0xd1/0xe0
	...
	Call Trace:
	 [<ffffffff812350c5>] big_key_read+0x55/0x100
	 [<ffffffff81231084>] keyctl_read_key+0xb4/0xe0
	 [<ffffffff81231e58>] SyS_keyctl+0xf8/0x1d0
	 [<ffffffff815bb799>] system_call_fastpath+0x16/0x1b


Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Stephen Gallagher <sgallagh@redhat.com>
---
 security/keys/big_key.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/security/keys/big_key.c b/security/keys/big_key.c
index 2cf5e62d67af..7f44c3207a9b 100644
--- a/security/keys/big_key.c
+++ b/security/keys/big_key.c
@@ -78,6 +78,7 @@ int big_key_instantiate(struct key *key, struct key_preparsed_payload *prep)
 
 		written = kernel_write(file, prep->data, prep->datalen, 0);
 		if (written != datalen) {
+			ret = written;
 			if (written >= 0)
 				ret = -ENOMEM;
 			goto err_fput;
-- 
cgit 


From e504c9098ed6acd9e1079c5e10e4910724ad429f Mon Sep 17 00:00:00 2001
From: Anthoine Bourgeois <bourgeois@bertin.fr>
Date: Wed, 13 Nov 2013 11:45:37 +0100
Subject: kvm, vmx: Fix lazy FPU on nested guest

If a nested guest does a NM fault but its CR0 doesn't contain the TS
flag (because it was already cleared by the guest with L1 aid) then we
have to activate FPU ourselves in L0 and then continue to L2. If TS flag
is set then we fallback on the previous behavior, forward the fault to
L1 if it asked for.

Signed-off-by: Anthoine Bourgeois <bourgeois@bertin.fr>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 arch/x86/kvm/vmx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index e293a62a11d6..b2fe1c252f35 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -6643,6 +6643,9 @@ static bool nested_vmx_exit_handled(struct kvm_vcpu *vcpu)
 			return 0;
 		else if (is_page_fault(intr_info))
 			return enable_ept;
+		else if (is_no_device(intr_info) &&
+			 !(nested_read_cr0(vmcs12) & X86_CR0_TS))
+			return 0;
 		return vmcs12->exception_bitmap &
 				(1u << (intr_info & INTR_INFO_VECTOR_MASK));
 	case EXIT_REASON_EXTERNAL_INTERRUPT:
-- 
cgit 


From 09f90f6685cd88b6b904c141035d096169958cc4 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 11 Nov 2013 21:01:03 +0100
Subject: m68k: Simplify low level interrupt handling code

The low level interrupt entry code of m68k contains the following:

    add_preempt_count(HARDIRQ_OFFSET);

    do_IRQ();
	irq_enter();
	    add_preempt_count(HARDIRQ_OFFSET);
	handle_interrupt();
	irq_exit();
	    sub_preempt_count(HARDIRQ_OFFSET);
	    if (in_interrupt())
       	       return; <---- On m68k always taken!
	    if (local_softirq_pending())
       	       do_softirq();

    sub_preempt_count(HARDIRQ_OFFSET);
    if (in_hardirq())
       return;
    if (status_on_stack_has_interrupt_priority_mask > 0)
       return;
    if (local_softirq_pending())
       do_softirq();

    ret_from_exception:
	if (interrupted_context_is_kernel)
	   return:
	....

I tried to find a proper explanation for this, but the changelog is
sparse and there are no mails explaining it further. But obviously
this relates to the interrupt priority levels of the m68k and tries to
be extra clever with nested interrupts. Though this cleverness just
adds code bloat to the interrupt hotpath.

For the common case of non nested interrupts the code runs through two
extra conditionals to the only important one, which checks whether the
return is to kernel or user space.

For the nested case the checks for in_hardirq() and the priority mask
value on stack catch only the case where the nested interrupt happens
inside the hard irq context of the first interrupt. If the nested
interrupt happens while the first interrupt handles soft interrupts,
then these extra checks buy nothing. The nested interrupt will fall
through to the final kernel/user space return check at
ret_from_exception.

Changing the code flow in the following way:

    do_IRQ();
	irq_enter();
	    add_preempt_count(HARDIRQ_OFFSET);
	handle_interrupt();
	irq_exit();
	    sub_preempt_count(HARDIRQ_OFFSET);
	    if (in_interrupt())
       	       return;
	    if (local_softirq_pending())
       	       do_softirq();

    ret_from_exception:
	if (interrupted_context_is_kernel)
	   return:

makes the region protected by the hardirq count slightly smaller and
the softirq handling is invoked with a minimal deeper stack. But
otherwise it's completely functional equivalent and saves 104 bytes of
text in arch/m68k/kernel/entry.o.

This modification allows us further to get rid of the limitations
which m68k puts on the preempt_count layout, so we can make the
preempt count bits completely generic.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Michael Schmitz <schmitz@biophys.uni-duesseldorf.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Linux/m68k <linux-m68k@vger.kernel.org>
Cc: Andreas Schwab <schwab@linux-m68k.org>
Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1311112052360.30673@ionos.tec.linutronix.de
---
 arch/m68k/kernel/entry.S         | 40 ++++------------------------------------
 arch/m68k/kernel/ints.c          |  6 ------
 arch/m68k/platform/68000/entry.S | 33 ++++++++-------------------------
 arch/m68k/platform/68360/entry.S | 24 +++---------------------
 4 files changed, 15 insertions(+), 88 deletions(-)

diff --git a/arch/m68k/kernel/entry.S b/arch/m68k/kernel/entry.S
index a78f5649e8de..b54ac7aba850 100644
--- a/arch/m68k/kernel/entry.S
+++ b/arch/m68k/kernel/entry.S
@@ -45,7 +45,7 @@
 .globl system_call, buserr, trap, resume
 .globl sys_call_table
 .globl __sys_fork, __sys_clone, __sys_vfork
-.globl ret_from_interrupt, bad_interrupt
+.globl bad_interrupt
 .globl auto_irqhandler_fixup
 .globl user_irqvec_fixup
 
@@ -275,8 +275,6 @@ do_delayed_trace:
 ENTRY(auto_inthandler)
 	SAVE_ALL_INT
 	GET_CURRENT(%d0)
-	movel	%d0,%a1
-	addqb	#1,%a1@(TINFO_PREEMPT+1)
 					|  put exception # in d0
 	bfextu	%sp@(PT_OFF_FORMATVEC){#4,#10},%d0
 	subw	#VEC_SPUR,%d0
@@ -286,32 +284,13 @@ ENTRY(auto_inthandler)
 auto_irqhandler_fixup = . + 2
 	jsr	do_IRQ			|  process the IRQ
 	addql	#8,%sp			|  pop parameters off stack
-
-ret_from_interrupt:
-	movel	%curptr@(TASK_STACK),%a1
-	subqb	#1,%a1@(TINFO_PREEMPT+1)
-	jeq	ret_from_last_interrupt
-2:	RESTORE_ALL
-
-	ALIGN
-ret_from_last_interrupt:
-	moveq	#(~ALLOWINT>>8)&0xff,%d0
-	andb	%sp@(PT_OFF_SR),%d0
-	jne	2b
-
-	/* check if we need to do software interrupts */
-	tstl	irq_stat+CPUSTAT_SOFTIRQ_PENDING
-	jeq	.Lret_from_exception
-	pea	ret_from_exception
-	jra	do_softirq
+	jra	ret_from_exception
 
 /* Handler for user defined interrupt vectors */
 
 ENTRY(user_inthandler)
 	SAVE_ALL_INT
 	GET_CURRENT(%d0)
-	movel	%d0,%a1
-	addqb	#1,%a1@(TINFO_PREEMPT+1)
 					|  put exception # in d0
 	bfextu	%sp@(PT_OFF_FORMATVEC){#4,#10},%d0
 user_irqvec_fixup = . + 2
@@ -321,29 +300,18 @@ user_irqvec_fixup = . + 2
 	movel	%d0,%sp@-		|  put vector # on stack
 	jsr	do_IRQ			|  process the IRQ
 	addql	#8,%sp			|  pop parameters off stack
-
-	movel	%curptr@(TASK_STACK),%a1
-	subqb	#1,%a1@(TINFO_PREEMPT+1)
-	jeq	ret_from_last_interrupt
-	RESTORE_ALL
+	jra	ret_from_exception
 
 /* Handler for uninitialized and spurious interrupts */
 
 ENTRY(bad_inthandler)
 	SAVE_ALL_INT
 	GET_CURRENT(%d0)
-	movel	%d0,%a1
-	addqb	#1,%a1@(TINFO_PREEMPT+1)
 
 	movel	%sp,%sp@-
 	jsr	handle_badint
 	addql	#4,%sp
-
-	movel	%curptr@(TASK_STACK),%a1
-	subqb	#1,%a1@(TINFO_PREEMPT+1)
-	jeq	ret_from_last_interrupt
-	RESTORE_ALL
-
+	jra	ret_from_exception
 
 resume:
 	/*
diff --git a/arch/m68k/kernel/ints.c b/arch/m68k/kernel/ints.c
index 4d7da384eea0..077d3a70fed1 100644
--- a/arch/m68k/kernel/ints.c
+++ b/arch/m68k/kernel/ints.c
@@ -58,12 +58,6 @@ void __init init_IRQ(void)
 {
 	int i;
 
-	/* assembly irq entry code relies on this... */
-	if (HARDIRQ_MASK != 0x00ff0000) {
-		extern void hardirq_mask_is_broken(void);
-		hardirq_mask_is_broken();
-	}
-
 	for (i = IRQ_AUTO_1; i <= IRQ_AUTO_7; i++)
 		irq_set_chip_and_handler(i, &auto_irq_chip, handle_simple_irq);
 
diff --git a/arch/m68k/platform/68000/entry.S b/arch/m68k/platform/68000/entry.S
index 7f91c2fde509..23ac054c6e1a 100644
--- a/arch/m68k/platform/68000/entry.S
+++ b/arch/m68k/platform/68000/entry.S
@@ -27,7 +27,6 @@
 .globl ret_from_exception
 .globl ret_from_signal
 .globl sys_call_table
-.globl ret_from_interrupt
 .globl bad_interrupt
 .globl inthandler1
 .globl inthandler2
@@ -137,7 +136,7 @@ inthandler1:
 	movel	#65,%sp@- 		/*  put vector # on stack*/
 	jbsr	process_int		/*  process the IRQ*/
 3:     	addql	#8,%sp			/*  pop parameters off stack*/
-	bra	ret_from_interrupt
+	bra	ret_from_exception
 
 inthandler2:
 	SAVE_ALL_INT
@@ -148,7 +147,7 @@ inthandler2:
 	movel	#66,%sp@- 		/*  put vector # on stack*/
 	jbsr	process_int		/*  process the IRQ*/
 3:     	addql	#8,%sp			/*  pop parameters off stack*/
-	bra	ret_from_interrupt
+	bra	ret_from_exception
 
 inthandler3:
 	SAVE_ALL_INT
@@ -159,7 +158,7 @@ inthandler3:
 	movel	#67,%sp@- 		/*  put vector # on stack*/
 	jbsr	process_int		/*  process the IRQ*/
 3:     	addql	#8,%sp			/*  pop parameters off stack*/
-	bra	ret_from_interrupt
+	bra	ret_from_exception
 
 inthandler4:
 	SAVE_ALL_INT
@@ -170,7 +169,7 @@ inthandler4:
 	movel	#68,%sp@- 		/*  put vector # on stack*/
 	jbsr	process_int		/*  process the IRQ*/
 3:     	addql	#8,%sp			/*  pop parameters off stack*/
-	bra	ret_from_interrupt
+	bra	ret_from_exception
 
 inthandler5:
 	SAVE_ALL_INT
@@ -181,7 +180,7 @@ inthandler5:
 	movel	#69,%sp@- 		/*  put vector # on stack*/
 	jbsr	process_int		/*  process the IRQ*/
 3:     	addql	#8,%sp			/*  pop parameters off stack*/
-	bra	ret_from_interrupt
+	bra	ret_from_exception
 
 inthandler6:
 	SAVE_ALL_INT
@@ -192,7 +191,7 @@ inthandler6:
 	movel	#70,%sp@- 		/*  put vector # on stack*/
 	jbsr	process_int		/*  process the IRQ*/
 3:     	addql	#8,%sp			/*  pop parameters off stack*/
-	bra	ret_from_interrupt
+	bra	ret_from_exception
 
 inthandler7:
 	SAVE_ALL_INT
@@ -203,7 +202,7 @@ inthandler7:
 	movel	#71,%sp@- 		/*  put vector # on stack*/
 	jbsr	process_int		/*  process the IRQ*/
 3:     	addql	#8,%sp			/*  pop parameters off stack*/
-	bra	ret_from_interrupt
+	bra	ret_from_exception
 
 inthandler:
 	SAVE_ALL_INT
@@ -214,23 +213,7 @@ inthandler:
 	movel	%d0,%sp@- 		/*  put vector # on stack*/
 	jbsr	process_int		/*  process the IRQ*/
 3:     	addql	#8,%sp			/*  pop parameters off stack*/
-	bra	ret_from_interrupt
-
-ret_from_interrupt:
-	jeq	1f
-2:
-	RESTORE_ALL
-1:
-	moveb	%sp@(PT_OFF_SR), %d0
-	and	#7, %d0
-	jhi	2b
-
-	/* check if we need to do software interrupts */
-	jeq	ret_from_exception
-
-	pea	ret_from_exception
-	jra	do_softirq
-
+	bra	ret_from_exception
 
 /*
  * Handler for uninitialized and spurious interrupts.
diff --git a/arch/m68k/platform/68360/entry.S b/arch/m68k/platform/68360/entry.S
index 904fd9a4af4e..447c33ef37fd 100644
--- a/arch/m68k/platform/68360/entry.S
+++ b/arch/m68k/platform/68360/entry.S
@@ -29,7 +29,6 @@
 .globl ret_from_exception
 .globl ret_from_signal
 .globl sys_call_table
-.globl ret_from_interrupt
 .globl bad_interrupt
 .globl inthandler
 
@@ -132,26 +131,9 @@ inthandler:
 
 	movel	%sp,%sp@-
 	movel	%d0,%sp@- 		/*  put vector # on stack*/
-	jbsr	do_IRQ			/*  process the IRQ*/
-3:     	addql	#8,%sp			/*  pop parameters off stack*/
-	bra	ret_from_interrupt
-
-ret_from_interrupt:
-	jeq	1f
-2:
-	RESTORE_ALL
-1:
-	moveb	%sp@(PT_OFF_SR), %d0
-	and	#7, %d0
-	jhi	2b
-	/* check if we need to do software interrupts */
-
-	movel	irq_stat+CPUSTAT_SOFTIRQ_PENDING,%d0
-	jeq	ret_from_exception
-
-	pea	ret_from_exception
-	jra	do_softirq
-
+	jbsr	do_IRQ			/*  process the IRQ */
+	addql	#8,%sp			/*  pop parameters off stack*/
+	jra	ret_from_exception
 
 /*
  * Handler for uninitialized and spurious interrupts.
-- 
cgit 


From 54197e43a4a9a0f3fc406d72d9815754e84fab1e Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 17 Sep 2013 18:53:05 +0000
Subject: hardirq: Make hardirq bits generic

There is no reason for per arch hardirq bits. Make them all generic

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20130917183628.534494408@linutronix.de
---
 arch/blackfin/include/asm/hardirq.h |  3 ---
 arch/cris/include/asm/hardirq.h     | 12 ------------
 arch/m32r/include/asm/hardirq.h     | 16 ----------------
 arch/m68k/include/asm/hardirq.h     | 11 -----------
 arch/s390/include/asm/hardirq.h     |  2 --
 arch/sparc/include/asm/hardirq_32.h |  1 -
 arch/sparc/include/asm/hardirq_64.h |  2 --
 arch/tile/include/asm/hardirq.h     |  2 --
 include/linux/preempt_mask.h        | 30 ++++++++----------------------
 9 files changed, 8 insertions(+), 71 deletions(-)

diff --git a/arch/blackfin/include/asm/hardirq.h b/arch/blackfin/include/asm/hardirq.h
index c078dd78d998..58b54a6d5a16 100644
--- a/arch/blackfin/include/asm/hardirq.h
+++ b/arch/blackfin/include/asm/hardirq.h
@@ -12,9 +12,6 @@
 extern void ack_bad_irq(unsigned int irq);
 #define ack_bad_irq ack_bad_irq
 
-/* Define until common code gets sane defaults */
-#define HARDIRQ_BITS 9
-
 #include <asm-generic/hardirq.h>
 
 #endif
diff --git a/arch/cris/include/asm/hardirq.h b/arch/cris/include/asm/hardirq.h
index 17bb12d760b2..04126f7bfab2 100644
--- a/arch/cris/include/asm/hardirq.h
+++ b/arch/cris/include/asm/hardirq.h
@@ -2,18 +2,6 @@
 #define __ASM_HARDIRQ_H
 
 #include <asm/irq.h>
-
-#define HARDIRQ_BITS	8
-
-/*
- * The hardirq mask has to be large enough to have
- * space for potentially all IRQ sources in the system
- * nesting on a single CPU:
- */
-#if (1 << HARDIRQ_BITS) < NR_IRQS
-# error HARDIRQ_BITS is too low!
-#endif
-
 #include <asm-generic/hardirq.h>
 
 #endif /* __ASM_HARDIRQ_H */
diff --git a/arch/m32r/include/asm/hardirq.h b/arch/m32r/include/asm/hardirq.h
index 4c31c0ae215e..5f2ac4f64ddf 100644
--- a/arch/m32r/include/asm/hardirq.h
+++ b/arch/m32r/include/asm/hardirq.h
@@ -3,22 +3,6 @@
 #define __ASM_HARDIRQ_H
 
 #include <asm/irq.h>
-
-#if NR_IRQS > 256
-#define HARDIRQ_BITS	9
-#else
-#define HARDIRQ_BITS	8
-#endif
-
-/*
- * The hardirq mask has to be large enough to have
- * space for potentially all IRQ sources in the system
- * nesting on a single CPU:
- */
-#if (1 << HARDIRQ_BITS) < NR_IRQS
-# error HARDIRQ_BITS is too low!
-#endif
-
 #include <asm-generic/hardirq.h>
 
 #endif /* __ASM_HARDIRQ_H */
diff --git a/arch/m68k/include/asm/hardirq.h b/arch/m68k/include/asm/hardirq.h
index db30ed276878..6c618529d9b9 100644
--- a/arch/m68k/include/asm/hardirq.h
+++ b/arch/m68k/include/asm/hardirq.h
@@ -5,17 +5,6 @@
 #include <linux/cache.h>
 #include <asm/irq.h>
 
-#define HARDIRQ_BITS	8
-
-/*
- * The hardirq mask has to be large enough to have
- * space for potentially all IRQ sources in the system
- * nesting on a single CPU:
- */
-#if (1 << HARDIRQ_BITS) < NR_IRQS
-# error HARDIRQ_BITS is too low!
-#endif
-
 #ifdef CONFIG_MMU
 
 static inline void ack_bad_irq(unsigned int irq)
diff --git a/arch/s390/include/asm/hardirq.h b/arch/s390/include/asm/hardirq.h
index a908d2941c5d..b7eabaaeffbd 100644
--- a/arch/s390/include/asm/hardirq.h
+++ b/arch/s390/include/asm/hardirq.h
@@ -18,8 +18,6 @@
 #define __ARCH_HAS_DO_SOFTIRQ
 #define __ARCH_IRQ_EXIT_IRQS_DISABLED
 
-#define HARDIRQ_BITS	8
-
 static inline void ack_bad_irq(unsigned int irq)
 {
 	printk(KERN_CRIT "unexpected IRQ trap at vector %02x\n", irq);
diff --git a/arch/sparc/include/asm/hardirq_32.h b/arch/sparc/include/asm/hardirq_32.h
index 162007643cdc..ee93923b7f82 100644
--- a/arch/sparc/include/asm/hardirq_32.h
+++ b/arch/sparc/include/asm/hardirq_32.h
@@ -7,7 +7,6 @@
 #ifndef __SPARC_HARDIRQ_H
 #define __SPARC_HARDIRQ_H
 
-#define HARDIRQ_BITS    8
 #include <asm-generic/hardirq.h>
 
 #endif /* __SPARC_HARDIRQ_H */
diff --git a/arch/sparc/include/asm/hardirq_64.h b/arch/sparc/include/asm/hardirq_64.h
index 7c29fd1a87aa..f478ff1ddd02 100644
--- a/arch/sparc/include/asm/hardirq_64.h
+++ b/arch/sparc/include/asm/hardirq_64.h
@@ -14,6 +14,4 @@
 
 void ack_bad_irq(unsigned int irq);
 
-#define HARDIRQ_BITS	8
-
 #endif /* !(__SPARC64_HARDIRQ_H) */
diff --git a/arch/tile/include/asm/hardirq.h b/arch/tile/include/asm/hardirq.h
index 822390f9a154..54110af23985 100644
--- a/arch/tile/include/asm/hardirq.h
+++ b/arch/tile/include/asm/hardirq.h
@@ -42,6 +42,4 @@ DECLARE_PER_CPU(irq_cpustat_t, irq_stat);
 
 #include <linux/irq_cpustat.h>	/* Standard mappings for irq_cpustat_t above */
 
-#define HARDIRQ_BITS	8
-
 #endif /* _ASM_TILE_HARDIRQ_H */
diff --git a/include/linux/preempt_mask.h b/include/linux/preempt_mask.h
index 931bc616219f..810d7e386f20 100644
--- a/include/linux/preempt_mask.h
+++ b/include/linux/preempt_mask.h
@@ -11,36 +11,22 @@
  * - bits 0-7 are the preemption count (max preemption depth: 256)
  * - bits 8-15 are the softirq count (max # of softirqs: 256)
  *
- * The hardirq count can in theory reach the same as NR_IRQS.
- * In reality, the number of nested IRQS is limited to the stack
- * size as well. For archs with over 1000 IRQS it is not practical
- * to expect that they will all nest. We give a max of 10 bits for
- * hardirq nesting. An arch may choose to give less than 10 bits.
- * m68k expects it to be 8.
- *
- * - bits 16-25 are the hardirq count (max # of nested hardirqs: 1024)
- * - bit 26 is the NMI_MASK
- * - bit 27 is the PREEMPT_ACTIVE flag
+ * The hardirq count could in theory be the same as the number of
+ * interrupts in the system, but we run all interrupt handlers with
+ * interrupts disabled, so we cannot have nesting interrupts. Though
+ * there are a few palaeontologic drivers which reenable interrupts in
+ * the handler, so we need more than one bit here.
  *
  * PREEMPT_MASK: 0x000000ff
  * SOFTIRQ_MASK: 0x0000ff00
- * HARDIRQ_MASK: 0x03ff0000
- *     NMI_MASK: 0x04000000
+ * HARDIRQ_MASK: 0x000f0000
+ *     NMI_MASK: 0x00100000
  */
 #define PREEMPT_BITS	8
 #define SOFTIRQ_BITS	8
+#define HARDIRQ_BITS	4
 #define NMI_BITS	1
 
-#define MAX_HARDIRQ_BITS 10
-
-#ifndef HARDIRQ_BITS
-# define HARDIRQ_BITS	MAX_HARDIRQ_BITS
-#endif
-
-#if HARDIRQ_BITS > MAX_HARDIRQ_BITS
-#error HARDIRQ_BITS too high!
-#endif
-
 #define PREEMPT_SHIFT	0
 #define SOFTIRQ_SHIFT	(PREEMPT_SHIFT + PREEMPT_BITS)
 #define HARDIRQ_SHIFT	(SOFTIRQ_SHIFT + SOFTIRQ_BITS)
-- 
cgit 


From 650e4dc2a75959fdca1eecc0147bbb21dbfadf0f Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 17 Sep 2013 18:53:07 +0000
Subject: m32r: Use preempt_schedule_irq

Use the proper core function instead of fiddling with preempt_active
and interrupt enable in the low level code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: linux-m32r-ja@ml.linux-m32r.org
Link: http://lkml.kernel.org/r/20130917183628.758421136@linutronix.de
---
 arch/m32r/kernel/entry.S | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/arch/m32r/kernel/entry.S b/arch/m32r/kernel/entry.S
index 0c01543f10cd..7c3db9940ce1 100644
--- a/arch/m32r/kernel/entry.S
+++ b/arch/m32r/kernel/entry.S
@@ -182,13 +182,7 @@ need_resched:
 	ld	r4, PSW(sp)		; interrupts off (exception path) ?
 	and3	r4, r4, #0x4000
 	beqz	r4, restore_all
-	LDIMM	(r4, PREEMPT_ACTIVE)
-	st	r4, @(TI_PRE_COUNT, r8)
-	ENABLE_INTERRUPTS(r4)
-	bl	schedule
-	ldi	r4, #0
-	st	r4, @(TI_PRE_COUNT, r8)
-	DISABLE_INTERRUPTS(r4)
+	bl	preempt_schedule_irq
 	bra	need_resched
 #endif
 
-- 
cgit 


From aa0d53260596c1bef23547537724d4bad78e6f52 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 17 Sep 2013 18:53:08 +0000
Subject: ia64: Use preempt_schedule_irq

Use the proper core function instead of fiddling with PREEMPT_ACTIVE
and enable/disable interrupts in the low level code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: linux-ia64@vger.kernel.org
Link: http://lkml.kernel.org/r/20130917183628.857145384@linutronix.de
---
 arch/ia64/kernel/entry.S | 15 +--------------
 1 file changed, 1 insertion(+), 14 deletions(-)

diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index 7a53530f22c2..ddea607f948a 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -1169,21 +1169,8 @@ skip_rbs_switch:
 .work_pending:
 	tbit.z p6,p0=r31,TIF_NEED_RESCHED	// is resched not needed?
 (p6)	br.cond.sptk.few .notify
-#ifdef CONFIG_PREEMPT
-(pKStk) dep r21=-1,r0,PREEMPT_ACTIVE_BIT,1
-	;;
-(pKStk) st4 [r20]=r21
-#endif
-	SSM_PSR_I(p0, p6, r2)	// enable interrupts
-	br.call.spnt.many rp=schedule
+	br.call.spnt.many rp=preempt_schedule_irq
 .ret9:	cmp.eq p6,p0=r0,r0	// p6 <- 1 (re-check)
-	RSM_PSR_I(p0, r2, r20)	// disable interrupts
-	;;
-#ifdef CONFIG_PREEMPT
-(pKStk)	adds r20=TI_PRE_COUNT+IA64_TASK_SIZE,r13
-	;;
-(pKStk)	st4 [r20]=r0		// preempt_count() <- 0
-#endif
 (pLvSys)br.cond.sptk.few  __paravirt_pending_syscall_end
 	br.cond.sptk.many .work_processed_kernel
 
-- 
cgit 


From 9385d949d5bd0eb642ed05ea263c3638c9f4e372 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 17 Sep 2013 18:53:08 +0000
Subject: sparc: Use preempt_schedule_irq

The low level preemption code fiddles with the PREEMPT_ACTIVE bit for
no reason and calls schedule() with interrupts disabled, which is
wrong to begin with. Remove the PREEMPT_ACTIVE fiddling and call the
proper schedule_preempt_irq() function.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: sparclinux@vger.kernel.org
Link: http://lkml.kernel.org/r/20130917183628.966769884@linutronix.de
---
 arch/sparc/kernel/rtrap_64.S | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/arch/sparc/kernel/rtrap_64.S b/arch/sparc/kernel/rtrap_64.S
index afa2a9e3d0a0..76213db97a4a 100644
--- a/arch/sparc/kernel/rtrap_64.S
+++ b/arch/sparc/kernel/rtrap_64.S
@@ -306,12 +306,10 @@ to_kernel:
 		 nop
 		cmp			%l4, 0
 		bne,pn			%xcc, kern_fpucheck
-		 sethi			%hi(PREEMPT_ACTIVE), %l6
-		stw			%l6, [%g6 + TI_PRE_COUNT]
-		call			schedule
+		 nop
+		call			preempt_schedule_irq
 		 nop
 		ba,pt			%xcc, rtrap
-		 stw			%g0, [%g6 + TI_PRE_COUNT]
 #endif
 kern_fpucheck:	ldub			[%g6 + TI_FPDEPTH], %l5
 		brz,pt			%l5, rt_continue
-- 
cgit 


From 00d1a39e69d5afa7523dad515a05b21abd17c389 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 17 Sep 2013 18:53:09 +0000
Subject: preempt: Make PREEMPT_ACTIVE generic

No point in having this bit defined by architecture.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20130917183629.090698799@linutronix.de
---
 arch/alpha/include/asm/thread_info.h      |  2 --
 arch/arc/include/asm/thread_info.h        |  2 --
 arch/arm/include/asm/thread_info.h        |  6 ------
 arch/arm64/include/asm/thread_info.h      |  6 ------
 arch/avr32/include/asm/thread_info.h      |  2 --
 arch/blackfin/include/asm/thread_info.h   |  2 --
 arch/c6x/include/asm/thread_info.h        |  2 --
 arch/cris/include/asm/thread_info.h       |  2 --
 arch/frv/include/asm/thread_info.h        |  2 --
 arch/hexagon/include/asm/thread_info.h    |  4 ----
 arch/ia64/include/asm/thread_info.h       |  3 ---
 arch/m32r/include/asm/thread_info.h       |  2 --
 arch/m68k/include/asm/thread_info.h       |  2 --
 arch/metag/include/asm/thread_info.h      |  2 --
 arch/microblaze/include/asm/thread_info.h |  2 --
 arch/mips/include/asm/thread_info.h       |  2 --
 arch/mn10300/include/asm/thread_info.h    |  2 --
 arch/parisc/include/asm/thread_info.h     |  3 ---
 arch/powerpc/include/asm/thread_info.h    |  2 --
 arch/s390/include/asm/thread_info.h       |  2 --
 arch/score/include/asm/thread_info.h      |  2 --
 arch/sh/include/asm/thread_info.h         |  2 --
 arch/sh/kernel/entry-common.S             |  6 ++----
 arch/sparc/include/asm/thread_info_32.h   |  2 --
 arch/sparc/include/asm/thread_info_64.h   |  2 --
 arch/tile/include/asm/thread_info.h       |  2 --
 arch/um/include/asm/thread_info.h         |  2 --
 arch/unicore32/include/asm/thread_info.h  |  6 ------
 arch/x86/include/asm/thread_info.h        |  2 --
 arch/xtensa/include/asm/thread_info.h     |  2 --
 include/linux/preempt_mask.h              | 15 +++++----------
 include/linux/sched.h                     |  2 +-
 32 files changed, 8 insertions(+), 89 deletions(-)

diff --git a/arch/alpha/include/asm/thread_info.h b/arch/alpha/include/asm/thread_info.h
index 52cd2a4a3ff4..453597b91f3a 100644
--- a/arch/alpha/include/asm/thread_info.h
+++ b/arch/alpha/include/asm/thread_info.h
@@ -58,8 +58,6 @@ register struct thread_info *__current_thread_info __asm__("$8");
 #define THREAD_SIZE_ORDER 1
 #define THREAD_SIZE (2*PAGE_SIZE)
 
-#define PREEMPT_ACTIVE		0x40000000
-
 /*
  * Thread information flags:
  * - these are process state flags and used from assembly
diff --git a/arch/arc/include/asm/thread_info.h b/arch/arc/include/asm/thread_info.h
index 2d50a4cdd7f3..45be21672011 100644
--- a/arch/arc/include/asm/thread_info.h
+++ b/arch/arc/include/asm/thread_info.h
@@ -80,8 +80,6 @@ static inline __attribute_const__ struct thread_info *current_thread_info(void)
 
 #endif /* !__ASSEMBLY__ */
 
-#define PREEMPT_ACTIVE      0x10000000
-
 /*
  * thread information flags
  * - these are process state flags that various assembly files may need to
diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h
index df5e13d64f2c..71a06b293489 100644
--- a/arch/arm/include/asm/thread_info.h
+++ b/arch/arm/include/asm/thread_info.h
@@ -140,12 +140,6 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *,
 				    struct user_vfp_exc __user *);
 #endif
 
-/*
- * We use bit 30 of the preempt_count to indicate that kernel
- * preemption is occurring.  See <asm/hardirq.h>.
- */
-#define PREEMPT_ACTIVE	0x40000000
-
 /*
  * thread information flags:
  *  TIF_SYSCALL_TRACE	- syscall trace active
diff --git a/arch/arm64/include/asm/thread_info.h b/arch/arm64/include/asm/thread_info.h
index 23a3c4791d86..720e70b66ffd 100644
--- a/arch/arm64/include/asm/thread_info.h
+++ b/arch/arm64/include/asm/thread_info.h
@@ -88,12 +88,6 @@ static inline struct thread_info *current_thread_info(void)
 
 #endif
 
-/*
- * We use bit 30 of the preempt_count to indicate that kernel
- * preemption is occurring.  See <asm/hardirq.h>.
- */
-#define PREEMPT_ACTIVE	0x40000000
-
 /*
  * thread information flags:
  *  TIF_SYSCALL_TRACE	- syscall trace active
diff --git a/arch/avr32/include/asm/thread_info.h b/arch/avr32/include/asm/thread_info.h
index 6dc62e1f94c7..a978f3fe7c25 100644
--- a/arch/avr32/include/asm/thread_info.h
+++ b/arch/avr32/include/asm/thread_info.h
@@ -66,8 +66,6 @@ static inline struct thread_info *current_thread_info(void)
 
 #endif /* !__ASSEMBLY__ */
 
-#define PREEMPT_ACTIVE		0x40000000
-
 /*
  * Thread information flags
  * - these are process state flags that various assembly files may need to access
diff --git a/arch/blackfin/include/asm/thread_info.h b/arch/blackfin/include/asm/thread_info.h
index 3894005337ba..55f473bdad36 100644
--- a/arch/blackfin/include/asm/thread_info.h
+++ b/arch/blackfin/include/asm/thread_info.h
@@ -88,8 +88,6 @@ static inline struct thread_info *current_thread_info(void)
 #define TI_CPU		12
 #define TI_PREEMPT	16
 
-#define	PREEMPT_ACTIVE	0x4000000
-
 /*
  * thread information flag bit numbers
  */
diff --git a/arch/c6x/include/asm/thread_info.h b/arch/c6x/include/asm/thread_info.h
index 4c8dc562bd90..d4e9ef87076d 100644
--- a/arch/c6x/include/asm/thread_info.h
+++ b/arch/c6x/include/asm/thread_info.h
@@ -84,8 +84,6 @@ struct thread_info *current_thread_info(void)
 #define put_thread_info(ti)	put_task_struct((ti)->task)
 #endif /* __ASSEMBLY__ */
 
-#define	PREEMPT_ACTIVE	0x10000000
-
 /*
  * thread information flag bit numbers
  * - pending work-to-be-done flags are in LSW
diff --git a/arch/cris/include/asm/thread_info.h b/arch/cris/include/asm/thread_info.h
index 07c8c40c52b3..55dede18c032 100644
--- a/arch/cris/include/asm/thread_info.h
+++ b/arch/cris/include/asm/thread_info.h
@@ -44,8 +44,6 @@ struct thread_info {
 
 #endif
 
-#define PREEMPT_ACTIVE		0x10000000
-
 /*
  * macros/functions for gaining access to the thread information structure
  */
diff --git a/arch/frv/include/asm/thread_info.h b/arch/frv/include/asm/thread_info.h
index bebd7eadc772..af29e17c0181 100644
--- a/arch/frv/include/asm/thread_info.h
+++ b/arch/frv/include/asm/thread_info.h
@@ -52,8 +52,6 @@ struct thread_info {
 
 #endif
 
-#define PREEMPT_ACTIVE		0x10000000
-
 /*
  * macros/functions for gaining access to the thread information structure
  */
diff --git a/arch/hexagon/include/asm/thread_info.h b/arch/hexagon/include/asm/thread_info.h
index f7c32406a711..a59dad3b3695 100644
--- a/arch/hexagon/include/asm/thread_info.h
+++ b/arch/hexagon/include/asm/thread_info.h
@@ -73,10 +73,6 @@ struct thread_info {
 
 #endif  /* __ASSEMBLY__  */
 
-/*  looks like "linux/hardirq.h" uses this.  */
-
-#define PREEMPT_ACTIVE		0x10000000
-
 #ifndef __ASSEMBLY__
 
 #define INIT_THREAD_INFO(tsk)                   \
diff --git a/arch/ia64/include/asm/thread_info.h b/arch/ia64/include/asm/thread_info.h
index cade13dd0299..5957cf61f898 100644
--- a/arch/ia64/include/asm/thread_info.h
+++ b/arch/ia64/include/asm/thread_info.h
@@ -11,9 +11,6 @@
 #include <asm/processor.h>
 #include <asm/ptrace.h>
 
-#define PREEMPT_ACTIVE_BIT 30
-#define PREEMPT_ACTIVE	(1 << PREEMPT_ACTIVE_BIT)
-
 #ifndef __ASSEMBLY__
 
 /*
diff --git a/arch/m32r/include/asm/thread_info.h b/arch/m32r/include/asm/thread_info.h
index c074f4c2e858..00171703402f 100644
--- a/arch/m32r/include/asm/thread_info.h
+++ b/arch/m32r/include/asm/thread_info.h
@@ -53,8 +53,6 @@ struct thread_info {
 
 #endif
 
-#define PREEMPT_ACTIVE		0x10000000
-
 #define THREAD_SIZE		(PAGE_SIZE << 1)
 #define THREAD_SIZE_ORDER	1
 /*
diff --git a/arch/m68k/include/asm/thread_info.h b/arch/m68k/include/asm/thread_info.h
index 126131f94a2c..21a4784ca5a1 100644
--- a/arch/m68k/include/asm/thread_info.h
+++ b/arch/m68k/include/asm/thread_info.h
@@ -35,8 +35,6 @@ struct thread_info {
 };
 #endif /* __ASSEMBLY__ */
 
-#define PREEMPT_ACTIVE		0x4000000
-
 #define INIT_THREAD_INFO(tsk)			\
 {						\
 	.task		= &tsk,			\
diff --git a/arch/metag/include/asm/thread_info.h b/arch/metag/include/asm/thread_info.h
index 7c4a33006142..b19e9c588a16 100644
--- a/arch/metag/include/asm/thread_info.h
+++ b/arch/metag/include/asm/thread_info.h
@@ -46,8 +46,6 @@ struct thread_info {
 
 #endif
 
-#define PREEMPT_ACTIVE		0x10000000
-
 #ifdef CONFIG_4KSTACKS
 #define THREAD_SHIFT		12
 #else
diff --git a/arch/microblaze/include/asm/thread_info.h b/arch/microblaze/include/asm/thread_info.h
index de26ea6373de..8c9d36591a03 100644
--- a/arch/microblaze/include/asm/thread_info.h
+++ b/arch/microblaze/include/asm/thread_info.h
@@ -106,8 +106,6 @@ static inline struct thread_info *current_thread_info(void)
 /* thread information allocation */
 #endif /* __ASSEMBLY__ */
 
-#define PREEMPT_ACTIVE		0x10000000
-
 /*
  * thread information flags
  * - these are process state flags that various assembly files may
diff --git a/arch/mips/include/asm/thread_info.h b/arch/mips/include/asm/thread_info.h
index f9b24bfbdbae..4f58ef6d0eed 100644
--- a/arch/mips/include/asm/thread_info.h
+++ b/arch/mips/include/asm/thread_info.h
@@ -92,8 +92,6 @@ static inline struct thread_info *current_thread_info(void)
 
 #define STACK_WARN	(THREAD_SIZE / 8)
 
-#define PREEMPT_ACTIVE		0x10000000
-
 /*
  * thread information flags
  * - these are process state flags that various assembly files may need to
diff --git a/arch/mn10300/include/asm/thread_info.h b/arch/mn10300/include/asm/thread_info.h
index 224b4262486d..bf280eaccd36 100644
--- a/arch/mn10300/include/asm/thread_info.h
+++ b/arch/mn10300/include/asm/thread_info.h
@@ -16,8 +16,6 @@
 
 #include <asm/page.h>
 
-#define PREEMPT_ACTIVE		0x10000000
-
 #ifdef CONFIG_4KSTACKS
 #define THREAD_SIZE		(4096)
 #define THREAD_SIZE_ORDER	(0)
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index bc7cf120106b..d5f97ea3a4e1 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -46,9 +46,6 @@ struct thread_info {
 #define THREAD_SIZE             (PAGE_SIZE << THREAD_SIZE_ORDER)
 #define THREAD_SHIFT            (PAGE_SHIFT + THREAD_SIZE_ORDER)
 
-#define PREEMPT_ACTIVE_BIT	28
-#define PREEMPT_ACTIVE		(1 << PREEMPT_ACTIVE_BIT)
-
 /*
  * thread information flags
  */
diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
index ba7b1973866e..8fd6cf6dcee8 100644
--- a/arch/powerpc/include/asm/thread_info.h
+++ b/arch/powerpc/include/asm/thread_info.h
@@ -82,8 +82,6 @@ static inline struct thread_info *current_thread_info(void)
 
 #endif /* __ASSEMBLY__ */
 
-#define PREEMPT_ACTIVE		0x10000000
-
 /*
  * thread information flag bit numbers
  */
diff --git a/arch/s390/include/asm/thread_info.h b/arch/s390/include/asm/thread_info.h
index eb5f64d26d06..10e0fcd3633d 100644
--- a/arch/s390/include/asm/thread_info.h
+++ b/arch/s390/include/asm/thread_info.h
@@ -111,6 +111,4 @@ static inline struct thread_info *current_thread_info(void)
 #define is_32bit_task()		(1)
 #endif
 
-#define PREEMPT_ACTIVE		0x4000000
-
 #endif /* _ASM_THREAD_INFO_H */
diff --git a/arch/score/include/asm/thread_info.h b/arch/score/include/asm/thread_info.h
index 1425cc034872..656b7ada9326 100644
--- a/arch/score/include/asm/thread_info.h
+++ b/arch/score/include/asm/thread_info.h
@@ -72,8 +72,6 @@ register struct thread_info *__current_thread_info __asm__("r28");
 
 #endif /* !__ASSEMBLY__ */
 
-#define PREEMPT_ACTIVE		0x10000000
-
 /*
  * thread information flags
  * - these are process state flags that various assembly files may need to
diff --git a/arch/sh/include/asm/thread_info.h b/arch/sh/include/asm/thread_info.h
index 45a93669289d..ad27ffa65e2e 100644
--- a/arch/sh/include/asm/thread_info.h
+++ b/arch/sh/include/asm/thread_info.h
@@ -41,8 +41,6 @@ struct thread_info {
 
 #endif
 
-#define PREEMPT_ACTIVE		0x10000000
-
 #if defined(CONFIG_4KSTACKS)
 #define THREAD_SHIFT	12
 #else
diff --git a/arch/sh/kernel/entry-common.S b/arch/sh/kernel/entry-common.S
index 9b6e4beeb296..ca46834294b7 100644
--- a/arch/sh/kernel/entry-common.S
+++ b/arch/sh/kernel/entry-common.S
@@ -108,7 +108,7 @@ need_resched:
 	and	#(0xf0>>1), r0		! interrupts off (exception path)?
 	cmp/eq	#(0xf0>>1), r0
 	bt	noresched
-	mov.l	3f, r0
+	mov.l	1f, r0
 	jsr	@r0			! call preempt_schedule_irq
 	 nop
 	bra	need_resched
@@ -119,9 +119,7 @@ noresched:
 	 nop
 
 	.align 2
-1:	.long	PREEMPT_ACTIVE
-2:	.long	schedule
-3:	.long	preempt_schedule_irq
+1:	.long	preempt_schedule_irq
 #endif
 
 ENTRY(resume_userspace)
diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h
index dd3807599bb9..96efa7adc223 100644
--- a/arch/sparc/include/asm/thread_info_32.h
+++ b/arch/sparc/include/asm/thread_info_32.h
@@ -105,8 +105,6 @@ register struct thread_info *current_thread_info_reg asm("g6");
 #define TI_W_SAVED	0x250
 /* #define TI_RESTART_BLOCK 0x25n */ /* Nobody cares */
 
-#define PREEMPT_ACTIVE		0x4000000
-
 /*
  * thread information flag bit numbers
  */
diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h
index d5e504251079..2b4e17b79e9c 100644
--- a/arch/sparc/include/asm/thread_info_64.h
+++ b/arch/sparc/include/asm/thread_info_64.h
@@ -111,8 +111,6 @@ struct thread_info {
 #define THREAD_SHIFT PAGE_SHIFT
 #endif /* PAGE_SHIFT == 13 */
 
-#define PREEMPT_ACTIVE		0x10000000
-
 /*
  * macros/functions for gaining access to the thread information structure
  */
diff --git a/arch/tile/include/asm/thread_info.h b/arch/tile/include/asm/thread_info.h
index b8aa6df3e102..729aa107f64e 100644
--- a/arch/tile/include/asm/thread_info.h
+++ b/arch/tile/include/asm/thread_info.h
@@ -113,8 +113,6 @@ extern void _cpu_idle(void);
 
 #endif /* !__ASSEMBLY__ */
 
-#define PREEMPT_ACTIVE		0x10000000
-
 /*
  * Thread information flags that various assembly files may need to access.
  * Keep flags accessed frequently in low bits, particular since it makes
diff --git a/arch/um/include/asm/thread_info.h b/arch/um/include/asm/thread_info.h
index 2c8eeb2df8b4..1c5b2a83046a 100644
--- a/arch/um/include/asm/thread_info.h
+++ b/arch/um/include/asm/thread_info.h
@@ -60,8 +60,6 @@ static inline struct thread_info *current_thread_info(void)
 
 #endif
 
-#define PREEMPT_ACTIVE		0x10000000
-
 #define TIF_SYSCALL_TRACE	0	/* syscall trace active */
 #define TIF_SIGPENDING		1	/* signal pending */
 #define TIF_NEED_RESCHED	2	/* rescheduling necessary */
diff --git a/arch/unicore32/include/asm/thread_info.h b/arch/unicore32/include/asm/thread_info.h
index 818b4a1edb5b..af36d8eabdf1 100644
--- a/arch/unicore32/include/asm/thread_info.h
+++ b/arch/unicore32/include/asm/thread_info.h
@@ -117,12 +117,6 @@ static inline struct thread_info *current_thread_info(void)
 
 #endif
 
-/*
- * We use bit 30 of the preempt_count to indicate that kernel
- * preemption is occurring.  See <asm/hardirq.h>.
- */
-#define PREEMPT_ACTIVE	0x40000000
-
 /*
  * thread information flags:
  *  TIF_SYSCALL_TRACE	- syscall trace active
diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h
index c46a46be1ec6..3ba3de457d05 100644
--- a/arch/x86/include/asm/thread_info.h
+++ b/arch/x86/include/asm/thread_info.h
@@ -153,8 +153,6 @@ struct thread_info {
 #define _TIF_WORK_CTXSW_PREV (_TIF_WORK_CTXSW|_TIF_USER_RETURN_NOTIFY)
 #define _TIF_WORK_CTXSW_NEXT (_TIF_WORK_CTXSW)
 
-#define PREEMPT_ACTIVE		0x10000000
-
 #ifdef CONFIG_X86_32
 
 #define STACK_WARN	(THREAD_SIZE/8)
diff --git a/arch/xtensa/include/asm/thread_info.h b/arch/xtensa/include/asm/thread_info.h
index 9481004ac119..470153e8547c 100644
--- a/arch/xtensa/include/asm/thread_info.h
+++ b/arch/xtensa/include/asm/thread_info.h
@@ -76,8 +76,6 @@ struct thread_info {
 
 #endif
 
-#define PREEMPT_ACTIVE		0x10000000
-
 /*
  * macros/functions for gaining access to the thread information structure
  */
diff --git a/include/linux/preempt_mask.h b/include/linux/preempt_mask.h
index 810d7e386f20..d169820203dd 100644
--- a/include/linux/preempt_mask.h
+++ b/include/linux/preempt_mask.h
@@ -17,10 +17,11 @@
  * there are a few palaeontologic drivers which reenable interrupts in
  * the handler, so we need more than one bit here.
  *
- * PREEMPT_MASK: 0x000000ff
- * SOFTIRQ_MASK: 0x0000ff00
- * HARDIRQ_MASK: 0x000f0000
- *     NMI_MASK: 0x00100000
+ * PREEMPT_MASK:	0x000000ff
+ * SOFTIRQ_MASK:	0x0000ff00
+ * HARDIRQ_MASK:	0x000f0000
+ *     NMI_MASK:	0x00100000
+ * PREEMPT_ACTIVE:	0x00200000
  */
 #define PREEMPT_BITS	8
 #define SOFTIRQ_BITS	8
@@ -46,15 +47,9 @@
 
 #define SOFTIRQ_DISABLE_OFFSET	(2 * SOFTIRQ_OFFSET)
 
-#ifndef PREEMPT_ACTIVE
 #define PREEMPT_ACTIVE_BITS	1
 #define PREEMPT_ACTIVE_SHIFT	(NMI_SHIFT + NMI_BITS)
 #define PREEMPT_ACTIVE	(__IRQ_MASK(PREEMPT_ACTIVE_BITS) << PREEMPT_ACTIVE_SHIFT)
-#endif
-
-#if PREEMPT_ACTIVE < (1 << (NMI_SHIFT + NMI_BITS))
-#error PREEMPT_ACTIVE is too low!
-#endif
 
 #define hardirq_count()	(preempt_count() & HARDIRQ_MASK)
 #define softirq_count()	(preempt_count() & SOFTIRQ_MASK)
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 045b0d227846..55080df48b70 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -22,7 +22,7 @@ struct sched_param {
 #include <linux/errno.h>
 #include <linux/nodemask.h>
 #include <linux/mm_types.h>
-#include <linux/preempt.h>
+#include <linux/preempt_mask.h>
 
 #include <asm/page.h>
 #include <asm/ptrace.h>
-- 
cgit 


From d1cab34c039584ebe76b04d2f2109e0d87d344e1 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Fri, 18 Oct 2013 19:35:21 +0200
Subject: dmatest: make driver unmap also source buffers by itself

Make the driver DMA unmap also source buffers by itself
(currently it DMA unmaps only destination buffers) as
a preparation for introducing generic 'ummap' data.

Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dma/dmatest.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index 92f796cdc6ab..f4a2a25fae31 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -597,11 +597,10 @@ static int dmatest_func(void *data)
 	set_user_nice(current, 10);
 
 	/*
-	 * src buffers are freed by the DMAEngine code with dma_unmap_single()
-	 * dst buffers are freed by ourselves below
+	 * src and dst buffers are freed by ourselves below
 	 */
-	flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT
-	      | DMA_COMPL_SKIP_DEST_UNMAP | DMA_COMPL_SRC_UNMAP_SINGLE;
+	flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT |
+		DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP;
 
 	while (!kthread_should_stop()
 	       && !(params->iterations && total_tests >= params->iterations)) {
@@ -750,7 +749,8 @@ static int dmatest_func(void *data)
 			continue;
 		}
 
-		/* Unmap by myself (see DMA_COMPL_SKIP_DEST_UNMAP above) */
+		/* Unmap by myself */
+		unmap_src(dev->dev, dma_srcs, len, src_cnt);
 		unmap_dst(dev->dev, dma_dsts, params->buf_size, dst_cnt);
 
 		error_count = 0;
-- 
cgit 


From 587ac5ee6f9f912926abe34bb323c6f87d53f137 Mon Sep 17 00:00:00 2001
From: Weng Meiling <wengmeiling.weng@huawei.com>
Date: Fri, 8 Nov 2013 15:23:12 +0800
Subject: svcrpc: remove an unnecessary assignment

Signed-off-by: Weng Meiling <wengmeiling.weng@huawei.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 net/sunrpc/svc.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/net/sunrpc/svc.c b/net/sunrpc/svc.c
index b974571126fe..e7fbe368b4a3 100644
--- a/net/sunrpc/svc.c
+++ b/net/sunrpc/svc.c
@@ -1104,8 +1104,6 @@ svc_process_common(struct svc_rqst *rqstp, struct kvec *argv, struct kvec *resv)
 	rqstp->rq_vers = vers = svc_getnl(argv);	/* version number */
 	rqstp->rq_proc = proc = svc_getnl(argv);	/* procedure number */
 
-	progp = serv->sv_program;
-
 	for (progp = serv->sv_program; progp; progp = progp->pg_next)
 		if (prog == progp->pg_prog)
 			break;
-- 
cgit 


From a7b9403f0e6d5f99139dca18be885819c8d380a1 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Thu, 26 Sep 2013 13:45:15 -0700
Subject: sparc64: Encode huge PMDs using PTE encoding.

Now that we have 64-bits for PMDs we can stop using special encodings
for the huge PMD values, and just put real PTEs in there.

We allocate a _PAGE_PMD_HUGE bit to distinguish between plain PMDs and
huge ones.  It is the same for both 4U and 4V PTE layouts.

We also use _PAGE_SPECIAL to indicate the splitting state, since a
huge PMD cannot also be special.

All of the PMD --> PTE translation code disappears, and most of the
huge PMD bit modifications and tests just degenerate into the PTE
operations.  In particular USER_PGTABLE_CHECK_PMD_HUGE becomes
trivial.

As a side effect, normal PMDs don't shift the physical address around.
This also speeds up the page table walks in the TLB miss paths since
they don't have to do the shifts any more.

Another non-trivial aspect is that pte_modify() has to be changed
to preserve the _PAGE_PMD_HUGE bits as well as the page size field
of the pte.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/include/asm/pgtable_64.h | 181 ++++++++++++++++++++++--------------
 arch/sparc/include/asm/tsb.h        |  92 +++---------------
 arch/sparc/mm/gup.c                 |   9 +-
 arch/sparc/mm/init_64.c             | 102 +-------------------
 arch/sparc/mm/tlb.c                 |   9 +-
 5 files changed, 131 insertions(+), 262 deletions(-)

diff --git a/arch/sparc/include/asm/pgtable_64.h b/arch/sparc/include/asm/pgtable_64.h
index eee803e10b92..8358dc144959 100644
--- a/arch/sparc/include/asm/pgtable_64.h
+++ b/arch/sparc/include/asm/pgtable_64.h
@@ -67,29 +67,6 @@
 #error PMD_SHIFT must equal HPAGE_SHIFT for transparent huge pages.
 #endif
 
-/* PMDs point to PTE tables which are 4K aligned.  */
-#define PMD_PADDR	_AC(0xfffffffe,UL)
-#define PMD_PADDR_SHIFT	_AC(11,UL)
-
-#define PMD_ISHUGE	_AC(0x00000001,UL)
-
-/* This is the PMD layout when PMD_ISHUGE is set.  With 4MB huge
- * pages, this frees up a bunch of bits in the layout that we can
- * use for the protection settings and software metadata.
- */
-#define PMD_HUGE_PADDR		_AC(0xfffff800,UL)
-#define PMD_HUGE_PROTBITS	_AC(0x000007ff,UL)
-#define PMD_HUGE_PRESENT	_AC(0x00000400,UL)
-#define PMD_HUGE_WRITE		_AC(0x00000200,UL)
-#define PMD_HUGE_DIRTY		_AC(0x00000100,UL)
-#define PMD_HUGE_ACCESSED	_AC(0x00000080,UL)
-#define PMD_HUGE_EXEC		_AC(0x00000040,UL)
-#define PMD_HUGE_SPLITTING	_AC(0x00000020,UL)
-
-/* PGDs point to PMD tables which are 8K aligned.  */
-#define PGD_PADDR	_AC(0xfffffffc,UL)
-#define PGD_PADDR_SHIFT	_AC(11,UL)
-
 #ifndef __ASSEMBLY__
 
 #include <linux/sched.h>
@@ -112,6 +89,7 @@
 #define _PAGE_VALID	  _AC(0x8000000000000000,UL) /* Valid TTE            */
 #define _PAGE_R	  	  _AC(0x8000000000000000,UL) /* Keep ref bit uptodate*/
 #define _PAGE_SPECIAL     _AC(0x0200000000000000,UL) /* Special page         */
+#define _PAGE_PMD_HUGE    _AC(0x0100000000000000,UL) /* Huge page            */
 
 /* Advertise support for _PAGE_SPECIAL */
 #define __HAVE_ARCH_PTE_SPECIAL
@@ -125,6 +103,7 @@
 #define _PAGE_IE_4U	  _AC(0x0800000000000000,UL) /* Invert Endianness    */
 #define _PAGE_SOFT2_4U	  _AC(0x07FC000000000000,UL) /* Software bits, set 2 */
 #define _PAGE_SPECIAL_4U  _AC(0x0200000000000000,UL) /* Special page         */
+#define _PAGE_PMD_HUGE_4U _AC(0x0100000000000000,UL) /* Huge page            */
 #define _PAGE_RES1_4U	  _AC(0x0002000000000000,UL) /* Reserved             */
 #define _PAGE_SZ32MB_4U	  _AC(0x0001000000000000,UL) /* (Panther) 32MB page  */
 #define _PAGE_SZ256MB_4U  _AC(0x2001000000000000,UL) /* (Panther) 256MB page */
@@ -155,6 +134,7 @@
 #define _PAGE_READ_4V	  _AC(0x0800000000000000,UL) /* Readable SW Bit      */
 #define _PAGE_WRITE_4V	  _AC(0x0400000000000000,UL) /* Writable SW Bit      */
 #define _PAGE_SPECIAL_4V  _AC(0x0200000000000000,UL) /* Special page         */
+#define _PAGE_PMD_HUGE_4V _AC(0x0100000000000000,UL) /* Huge page            */
 #define _PAGE_PADDR_4V	  _AC(0x00FFFFFFFFFFE000,UL) /* paddr[55:13]         */
 #define _PAGE_IE_4V	  _AC(0x0000000000001000,UL) /* Invert Endianness    */
 #define _PAGE_E_4V	  _AC(0x0000000000000800,UL) /* side-Effect          */
@@ -243,16 +223,13 @@ static inline pte_t pfn_pte(unsigned long pfn, pgprot_t prot)
 #define mk_pte(page, pgprot)	pfn_pte(page_to_pfn(page), (pgprot))
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
-extern pmd_t pfn_pmd(unsigned long page_nr, pgprot_t pgprot);
-#define mk_pmd(page, pgprot)	pfn_pmd(page_to_pfn(page), (pgprot))
-
-extern pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot);
-
-static inline pmd_t pmd_mkhuge(pmd_t pmd)
+static inline pmd_t pfn_pmd(unsigned long page_nr, pgprot_t pgprot)
 {
-	/* Do nothing, mk_pmd() does this part.  */
-	return pmd;
+	pte_t pte = pfn_pte(page_nr, pgprot);
+
+	return __pmd(pte_val(pte));
 }
+#define mk_pmd(page, pgprot)	pfn_pmd(page_to_pfn(page), (pgprot))
 #endif
 
 /* This one can be done with two shifts.  */
@@ -313,14 +290,25 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t prot)
 	: "=r" (mask), "=r" (tmp)
 	: "i" (_PAGE_PADDR_4U | _PAGE_MODIFIED_4U | _PAGE_ACCESSED_4U |
 	       _PAGE_CP_4U | _PAGE_CV_4U | _PAGE_E_4U | _PAGE_PRESENT_4U |
-	       _PAGE_SPECIAL),
+	       _PAGE_SPECIAL | _PAGE_PMD_HUGE | _PAGE_SZALL_4U),
 	  "i" (_PAGE_PADDR_4V | _PAGE_MODIFIED_4V | _PAGE_ACCESSED_4V |
 	       _PAGE_CP_4V | _PAGE_CV_4V | _PAGE_E_4V | _PAGE_PRESENT_4V |
-	       _PAGE_SPECIAL));
+	       _PAGE_SPECIAL | _PAGE_PMD_HUGE | _PAGE_SZALL_4V));
 
 	return __pte((pte_val(pte) & mask) | (pgprot_val(prot) & ~mask));
 }
 
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+static inline pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot)
+{
+	pte_t pte = __pte(pmd_val(pmd));
+
+	pte = pte_modify(pte, newprot);
+
+	return __pmd(pte_val(pte));
+}
+#endif
+
 static inline pte_t pgoff_to_pte(unsigned long off)
 {
 	off <<= PAGE_SHIFT;
@@ -361,7 +349,7 @@ static inline pgprot_t pgprot_noncached(pgprot_t prot)
  */
 #define pgprot_noncached pgprot_noncached
 
-#ifdef CONFIG_HUGETLB_PAGE
+#if defined(CONFIG_HUGETLB_PAGE) || defined(CONFIG_TRANSPARENT_HUGEPAGE)
 static inline pte_t pte_mkhuge(pte_t pte)
 {
 	unsigned long mask;
@@ -379,6 +367,17 @@ static inline pte_t pte_mkhuge(pte_t pte)
 
 	return __pte(pte_val(pte) | mask);
 }
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+static inline pmd_t pmd_mkhuge(pmd_t pmd)
+{
+	pte_t pte = __pte(pmd_val(pmd));
+
+	pte = pte_mkhuge(pte);
+	pte_val(pte) |= _PAGE_PMD_HUGE;
+
+	return __pmd(pte_val(pte));
+}
+#endif
 #endif
 
 static inline pte_t pte_mkdirty(pte_t pte)
@@ -630,86 +629,125 @@ static inline unsigned long pte_special(pte_t pte)
 	return pte_val(pte) & _PAGE_SPECIAL;
 }
 
-static inline int pmd_large(pmd_t pmd)
+static inline unsigned long pmd_large(pmd_t pmd)
 {
-	return (pmd_val(pmd) & (PMD_ISHUGE | PMD_HUGE_PRESENT)) ==
-		(PMD_ISHUGE | PMD_HUGE_PRESENT);
+	pte_t pte = __pte(pmd_val(pmd));
+
+	return (pte_val(pte) & _PAGE_PMD_HUGE) && pte_present(pte);
 }
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
-static inline int pmd_young(pmd_t pmd)
+static inline unsigned long pmd_young(pmd_t pmd)
 {
-	return pmd_val(pmd) & PMD_HUGE_ACCESSED;
+	pte_t pte = __pte(pmd_val(pmd));
+
+	return pte_young(pte);
 }
 
-static inline int pmd_write(pmd_t pmd)
+static inline unsigned long pmd_write(pmd_t pmd)
 {
-	return pmd_val(pmd) & PMD_HUGE_WRITE;
+	pte_t pte = __pte(pmd_val(pmd));
+
+	return pte_write(pte);
 }
 
 static inline unsigned long pmd_pfn(pmd_t pmd)
 {
-	unsigned long val = pmd_val(pmd) & PMD_HUGE_PADDR;
+	pte_t pte = __pte(pmd_val(pmd));
 
-	return val >> (PAGE_SHIFT - PMD_PADDR_SHIFT);
+	return pte_pfn(pte);
 }
 
-static inline int pmd_trans_splitting(pmd_t pmd)
+static inline unsigned long pmd_trans_huge(pmd_t pmd)
 {
-	return (pmd_val(pmd) & (PMD_ISHUGE|PMD_HUGE_SPLITTING)) ==
-		(PMD_ISHUGE|PMD_HUGE_SPLITTING);
+	pte_t pte = __pte(pmd_val(pmd));
+
+	return pte_val(pte) & _PAGE_PMD_HUGE;
 }
 
-static inline int pmd_trans_huge(pmd_t pmd)
+static inline unsigned long pmd_trans_splitting(pmd_t pmd)
 {
-	return pmd_val(pmd) & PMD_ISHUGE;
+	pte_t pte = __pte(pmd_val(pmd));
+
+	return pmd_trans_huge(pmd) && pte_special(pte);
 }
 
 #define has_transparent_hugepage() 1
 
 static inline pmd_t pmd_mkold(pmd_t pmd)
 {
-	pmd_val(pmd) &= ~PMD_HUGE_ACCESSED;
-	return pmd;
+	pte_t pte = __pte(pmd_val(pmd));
+
+	pte = pte_mkold(pte);
+
+	return __pmd(pte_val(pte));
 }
 
 static inline pmd_t pmd_wrprotect(pmd_t pmd)
 {
-	pmd_val(pmd) &= ~PMD_HUGE_WRITE;
-	return pmd;
+	pte_t pte = __pte(pmd_val(pmd));
+
+	pte = pte_wrprotect(pte);
+
+	return __pmd(pte_val(pte));
 }
 
 static inline pmd_t pmd_mkdirty(pmd_t pmd)
 {
-	pmd_val(pmd) |= PMD_HUGE_DIRTY;
-	return pmd;
+	pte_t pte = __pte(pmd_val(pmd));
+
+	pte = pte_mkdirty(pte);
+
+	return __pmd(pte_val(pte));
 }
 
 static inline pmd_t pmd_mkyoung(pmd_t pmd)
 {
-	pmd_val(pmd) |= PMD_HUGE_ACCESSED;
-	return pmd;
+	pte_t pte = __pte(pmd_val(pmd));
+
+	pte = pte_mkyoung(pte);
+
+	return __pmd(pte_val(pte));
 }
 
 static inline pmd_t pmd_mkwrite(pmd_t pmd)
 {
-	pmd_val(pmd) |= PMD_HUGE_WRITE;
-	return pmd;
+	pte_t pte = __pte(pmd_val(pmd));
+
+	pte = pte_mkwrite(pte);
+
+	return __pmd(pte_val(pte));
 }
 
 static inline pmd_t pmd_mknotpresent(pmd_t pmd)
 {
-	pmd_val(pmd) &= ~PMD_HUGE_PRESENT;
+	unsigned long mask;
+
+	if (tlb_type == hypervisor)
+		mask = _PAGE_PRESENT_4V;
+	else
+		mask = _PAGE_PRESENT_4U;
+
+	pmd_val(pmd) &= ~mask;
+
 	return pmd;
 }
 
 static inline pmd_t pmd_mksplitting(pmd_t pmd)
 {
-	pmd_val(pmd) |= PMD_HUGE_SPLITTING;
-	return pmd;
+	pte_t pte = __pte(pmd_val(pmd));
+
+	pte = pte_mkspecial(pte);
+
+	return __pmd(pte_val(pte));
 }
 
-extern pgprot_t pmd_pgprot(pmd_t entry);
+static inline pgprot_t pmd_pgprot(pmd_t entry)
+{
+	unsigned long val = pmd_val(entry);
+
+	return __pgprot(val);
+}
 #endif
 
 static inline int pmd_present(pmd_t pmd)
@@ -732,26 +770,25 @@ static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr,
 
 static inline void pmd_set(struct mm_struct *mm, pmd_t *pmdp, pte_t *ptep)
 {
-	unsigned long val = __pa((unsigned long) (ptep)) >> PMD_PADDR_SHIFT;
+	unsigned long val = __pa((unsigned long) (ptep));
 
 	pmd_val(*pmdp) = val;
 }
 
 #define pud_set(pudp, pmdp)	\
-	(pud_val(*(pudp)) = (__pa((unsigned long) (pmdp)) >> PGD_PADDR_SHIFT))
+	(pud_val(*(pudp)) = (__pa((unsigned long) (pmdp))))
 static inline unsigned long __pmd_page(pmd_t pmd)
 {
-	unsigned long paddr = pmd_val(pmd);
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-	if (pmd_val(pmd) & PMD_ISHUGE)
-		paddr &= PMD_HUGE_PADDR;
-#endif
-	paddr <<= PMD_PADDR_SHIFT;
-	return ((unsigned long) __va(paddr));
+	pte_t pte = __pte(pmd_val(pmd));
+	unsigned long pfn;
+
+	pfn = pte_pfn(pte);
+
+	return ((unsigned long) __va(pfn << PAGE_SHIFT));
 }
 #define pmd_page(pmd) 			virt_to_page((void *)__pmd_page(pmd))
 #define pud_page_vaddr(pud)		\
-	((unsigned long) __va((pud_val(pud)<<PGD_PADDR_SHIFT)))
+	((unsigned long) __va(pud_val(pud)))
 #define pud_page(pud) 			virt_to_page((void *)pud_page_vaddr(pud))
 #define pmd_bad(pmd)			(0)
 #define pmd_clear(pmdp)			(pmd_val(*(pmdp)) = 0UL)
diff --git a/arch/sparc/include/asm/tsb.h b/arch/sparc/include/asm/tsb.h
index cc0432f15817..2230f80d9fe3 100644
--- a/arch/sparc/include/asm/tsb.h
+++ b/arch/sparc/include/asm/tsb.h
@@ -147,100 +147,34 @@ extern struct tsb_phys_patch_entry __tsb_phys_patch, __tsb_phys_patch_end;
 	brz,pn		REG1, FAIL_LABEL; \
 	 sllx		VADDR, 64 - (PMD_SHIFT + PMD_BITS), REG2; \
 	srlx		REG2, 64 - PAGE_SHIFT, REG2; \
-	sllx		REG1, PGD_PADDR_SHIFT, REG1; \
 	andn		REG2, 0x7, REG2; \
 	ldxa		[REG1 + REG2] ASI_PHYS_USE_EC, REG1; \
 	brz,pn		REG1, FAIL_LABEL; \
 	 sllx		VADDR, 64 - PMD_SHIFT, REG2; \
 	srlx		REG2, 64 - PAGE_SHIFT, REG2; \
-	sllx		REG1, PMD_PADDR_SHIFT, REG1; \
 	andn		REG2, 0x7, REG2; \
 	add		REG1, REG2, REG1;
 
-	/* These macros exists only to make the PMD translator below
-	 * easier to read.  It hides the ELF section switch for the
-	 * sun4v code patching.
-	 */
-#define OR_PTE_BIT_1INSN(REG, NAME)			\
-661:	or		REG, _PAGE_##NAME##_4U, REG;	\
-	.section	.sun4v_1insn_patch, "ax";	\
-	.word		661b;				\
-	or		REG, _PAGE_##NAME##_4V, REG;	\
-	.previous;
-
-#define OR_PTE_BIT_2INSN(REG, TMP, NAME)		\
-661:	sethi		%hi(_PAGE_##NAME##_4U), TMP;	\
-	or		REG, TMP, REG;			\
-	.section	.sun4v_2insn_patch, "ax";	\
-	.word		661b;				\
-	mov		-1, TMP;			\
-	or		REG, _PAGE_##NAME##_4V, REG;	\
-	.previous;
-
-	/* Load into REG the PTE value for VALID, CACHE, and SZHUGE.
-	 *
-	 * We are fabricating an 8MB page using 2 4MB HW pages here.
-	 */
-#define BUILD_PTE_VALID_SZHUGE_CACHE(VADDR, PADDR_BITS, REG)		   \
-	sethi		%hi(4 * 1024 * 1024), REG;			   \
-	andn		PADDR_BITS, REG, PADDR_BITS;			   \
-	and		VADDR, REG, REG;				   \
-	or		PADDR_BITS, REG, PADDR_BITS;			   \
-661:	sethi		%uhi(_PAGE_VALID|_PAGE_SZHUGE_4U), REG;		   \
-	.section	.sun4v_1insn_patch, "ax";			   \
-	.word		661b;						   \
-	sethi		%uhi(_PAGE_VALID), REG;				   \
-	.previous;							   \
-	sllx		REG, 32, REG;					   \
-661:	or		REG, _PAGE_CP_4U|_PAGE_CV_4U, REG;		   \
-	.section	.sun4v_1insn_patch, "ax";			   \
-	.word		661b;						   \
-	or		REG, _PAGE_CP_4V|_PAGE_CV_4V|_PAGE_SZHUGE_4V, REG; \
-	.previous;
-
 	/* PMD has been loaded into REG1, interpret the value, seeing
 	 * if it is a HUGE PMD or a normal one.  If it is not valid
 	 * then jump to FAIL_LABEL.  If it is a HUGE PMD, and it
 	 * translates to a valid PTE, branch to PTE_LABEL.
 	 *
-	 * We translate the PMD by hand, one bit at a time,
-	 * constructing the huge PTE.
-	 *
-	 * So we construct the PTE in REG2 as follows:
-	 *
-	 * 1) Extract the PMD PFN from REG1 and place it into REG2.
-	 *
-	 * 2) Translate PMD protection bits in REG1 into REG2, one bit
-	 *    at a time using andcc tests on REG1 and OR's into REG2.
-	 *
-	 *    Only two bits to be concerned with here, EXEC and WRITE.
-	 *    Now REG1 is freed up and we can use it as a temporary.
-	 *
-	 * 3) Construct the VALID, CACHE, and page size PTE bits in
-	 *    REG1, OR with REG2 to form final PTE.
+	 * We have to propagate the 4MB bit of the virtual address
+	 * because we are fabricating 8MB pages using 4MB hw pages.
 	 */
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 #define USER_PGTABLE_CHECK_PMD_HUGE(VADDR, REG1, REG2, FAIL_LABEL, PTE_LABEL) \
-	brz,pn		REG1, FAIL_LABEL;				      \
-	 andcc		REG1, PMD_ISHUGE, %g0;				      \
-	be,pt		%xcc, 700f;					      \
-	 and		REG1, PMD_HUGE_PRESENT|PMD_HUGE_ACCESSED, REG2;	      \
-	cmp		REG2, PMD_HUGE_PRESENT|PMD_HUGE_ACCESSED;	      \
-	bne,pn		%xcc, FAIL_LABEL;				      \
-	 andn		REG1, PMD_HUGE_PROTBITS, REG2;			      \
-	sllx		REG2, PMD_PADDR_SHIFT, REG2;			      \
-	/* REG2 now holds PFN << PAGE_SHIFT */				      \
-	andcc		REG1, PMD_HUGE_WRITE, %g0;			      \
-	bne,a,pt	%xcc, 1f;					      \
-	 OR_PTE_BIT_1INSN(REG2, W);					      \
-1:	andcc		REG1, PMD_HUGE_EXEC, %g0;			      \
-	be,pt		%xcc, 1f;					      \
-	 nop;								      \
-	OR_PTE_BIT_2INSN(REG2, REG1, EXEC);				      \
-	/* REG1 can now be clobbered, build final PTE */		      \
-1:	BUILD_PTE_VALID_SZHUGE_CACHE(VADDR, REG2, REG1);		      \
-	ba,pt		%xcc, PTE_LABEL;				      \
-	 or		REG1, REG2, REG1;				      \
+	brz,pn		REG1, FAIL_LABEL;		\
+	 sethi		%uhi(_PAGE_PMD_HUGE), REG2;	\
+	sllx		REG2, 32, REG2;			\
+	andcc		REG1, REG2, %g0;		\
+	be,pt		%xcc, 700f;			\
+	 sethi		%hi(4 * 1024 * 1024), REG2;	\
+	andn		REG1, REG2, REG1;		\
+	and		VADDR, REG2, REG2;		\
+	brlz,pt		REG1, PTE_LABEL;		\
+	 or		REG1, REG2, REG1;		\
 700:
 #else
 #define USER_PGTABLE_CHECK_PMD_HUGE(VADDR, REG1, REG2, FAIL_LABEL, PTE_LABEL) \
@@ -265,13 +199,11 @@ extern struct tsb_phys_patch_entry __tsb_phys_patch, __tsb_phys_patch_end;
 	brz,pn		REG1, FAIL_LABEL; \
 	 sllx		VADDR, 64 - (PMD_SHIFT + PMD_BITS), REG2; \
 	srlx		REG2, 64 - PAGE_SHIFT, REG2; \
-	sllx		REG1, PGD_PADDR_SHIFT, REG1; \
 	andn		REG2, 0x7, REG2; \
 	ldxa		[REG1 + REG2] ASI_PHYS_USE_EC, REG1; \
 	USER_PGTABLE_CHECK_PMD_HUGE(VADDR, REG1, REG2, FAIL_LABEL, 800f) \
 	sllx		VADDR, 64 - PMD_SHIFT, REG2; \
 	srlx		REG2, 64 - PAGE_SHIFT, REG2; \
-	sllx		REG1, PMD_PADDR_SHIFT, REG1; \
 	andn		REG2, 0x7, REG2; \
 	add		REG1, REG2, REG1; \
 	ldxa		[REG1] ASI_PHYS_USE_EC, REG1; \
diff --git a/arch/sparc/mm/gup.c b/arch/sparc/mm/gup.c
index 01ee23dd724d..c4d3da68b800 100644
--- a/arch/sparc/mm/gup.c
+++ b/arch/sparc/mm/gup.c
@@ -71,13 +71,12 @@ static int gup_huge_pmd(pmd_t *pmdp, pmd_t pmd, unsigned long addr,
 			int *nr)
 {
 	struct page *head, *page, *tail;
-	u32 mask;
 	int refs;
 
-	mask = PMD_HUGE_PRESENT;
-	if (write)
-		mask |= PMD_HUGE_WRITE;
-	if ((pmd_val(pmd) & mask) != mask)
+	if (!pmd_large(pmd))
+		return 0;
+
+	if (write && !pmd_write(pmd))
 		return 0;
 
 	refs = 0;
diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 828784419e25..bd6430ded69f 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -2602,121 +2602,21 @@ void pgtable_free(void *table, bool is_page)
 }
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
-static pmd_t pmd_set_protbits(pmd_t pmd, pgprot_t pgprot, bool for_modify)
-{
-	if (pgprot_val(pgprot) & _PAGE_VALID)
-		pmd_val(pmd) |= PMD_HUGE_PRESENT;
-	if (tlb_type == hypervisor) {
-		if (pgprot_val(pgprot) & _PAGE_WRITE_4V)
-			pmd_val(pmd) |= PMD_HUGE_WRITE;
-		if (pgprot_val(pgprot) & _PAGE_EXEC_4V)
-			pmd_val(pmd) |= PMD_HUGE_EXEC;
-
-		if (!for_modify) {
-			if (pgprot_val(pgprot) & _PAGE_ACCESSED_4V)
-				pmd_val(pmd) |= PMD_HUGE_ACCESSED;
-			if (pgprot_val(pgprot) & _PAGE_MODIFIED_4V)
-				pmd_val(pmd) |= PMD_HUGE_DIRTY;
-		}
-	} else {
-		if (pgprot_val(pgprot) & _PAGE_WRITE_4U)
-			pmd_val(pmd) |= PMD_HUGE_WRITE;
-		if (pgprot_val(pgprot) & _PAGE_EXEC_4U)
-			pmd_val(pmd) |= PMD_HUGE_EXEC;
-
-		if (!for_modify) {
-			if (pgprot_val(pgprot) & _PAGE_ACCESSED_4U)
-				pmd_val(pmd) |= PMD_HUGE_ACCESSED;
-			if (pgprot_val(pgprot) & _PAGE_MODIFIED_4U)
-				pmd_val(pmd) |= PMD_HUGE_DIRTY;
-		}
-	}
-
-	return pmd;
-}
-
-pmd_t pfn_pmd(unsigned long page_nr, pgprot_t pgprot)
-{
-	pmd_t pmd;
-
-	pmd_val(pmd) = (page_nr << ((PAGE_SHIFT - PMD_PADDR_SHIFT)));
-	pmd_val(pmd) |= PMD_ISHUGE;
-	pmd = pmd_set_protbits(pmd, pgprot, false);
-	return pmd;
-}
-
-pmd_t pmd_modify(pmd_t pmd, pgprot_t newprot)
-{
-	pmd_val(pmd) &= ~(PMD_HUGE_PRESENT |
-			  PMD_HUGE_WRITE |
-			  PMD_HUGE_EXEC);
-	pmd = pmd_set_protbits(pmd, newprot, true);
-	return pmd;
-}
-
-pgprot_t pmd_pgprot(pmd_t entry)
-{
-	unsigned long pte = 0;
-
-	if (pmd_val(entry) & PMD_HUGE_PRESENT)
-		pte |= _PAGE_VALID;
-
-	if (tlb_type == hypervisor) {
-		if (pmd_val(entry) & PMD_HUGE_PRESENT)
-			pte |= _PAGE_PRESENT_4V;
-		if (pmd_val(entry) & PMD_HUGE_EXEC)
-			pte |= _PAGE_EXEC_4V;
-		if (pmd_val(entry) & PMD_HUGE_WRITE)
-			pte |= _PAGE_W_4V;
-		if (pmd_val(entry) & PMD_HUGE_ACCESSED)
-			pte |= _PAGE_ACCESSED_4V;
-		if (pmd_val(entry) & PMD_HUGE_DIRTY)
-			pte |= _PAGE_MODIFIED_4V;
-		pte |= _PAGE_CP_4V|_PAGE_CV_4V;
-	} else {
-		if (pmd_val(entry) & PMD_HUGE_PRESENT)
-			pte |= _PAGE_PRESENT_4U;
-		if (pmd_val(entry) & PMD_HUGE_EXEC)
-			pte |= _PAGE_EXEC_4U;
-		if (pmd_val(entry) & PMD_HUGE_WRITE)
-			pte |= _PAGE_W_4U;
-		if (pmd_val(entry) & PMD_HUGE_ACCESSED)
-			pte |= _PAGE_ACCESSED_4U;
-		if (pmd_val(entry) & PMD_HUGE_DIRTY)
-			pte |= _PAGE_MODIFIED_4U;
-		pte |= _PAGE_CP_4U|_PAGE_CV_4U;
-	}
-
-	return __pgprot(pte);
-}
-
 void update_mmu_cache_pmd(struct vm_area_struct *vma, unsigned long addr,
 			  pmd_t *pmd)
 {
 	unsigned long pte, flags;
 	struct mm_struct *mm;
 	pmd_t entry = *pmd;
-	pgprot_t prot;
 
 	if (!pmd_large(entry) || !pmd_young(entry))
 		return;
 
-	pte = (pmd_val(entry) & ~PMD_HUGE_PROTBITS);
-	pte <<= PMD_PADDR_SHIFT;
-	pte |= _PAGE_VALID;
+	pte = pmd_val(entry);
 
 	/* We are fabricating 8MB pages using 4MB real hw pages.  */
 	pte |= (addr & (1UL << REAL_HPAGE_SHIFT));
 
-	prot = pmd_pgprot(entry);
-
-	if (tlb_type == hypervisor)
-		pgprot_val(prot) |= _PAGE_SZHUGE_4V;
-	else
-		pgprot_val(prot) |= _PAGE_SZHUGE_4U;
-
-	pte |= pgprot_val(prot);
-
 	mm = vma->vm_mm;
 
 	spin_lock_irqsave(&mm->context.lock, flags);
diff --git a/arch/sparc/mm/tlb.c b/arch/sparc/mm/tlb.c
index 97d1e56e9863..f1bd83019e71 100644
--- a/arch/sparc/mm/tlb.c
+++ b/arch/sparc/mm/tlb.c
@@ -161,8 +161,8 @@ void set_pmd_at(struct mm_struct *mm, unsigned long addr,
 	if (mm == &init_mm)
 		return;
 
-	if ((pmd_val(pmd) ^ pmd_val(orig)) & PMD_ISHUGE) {
-		if (pmd_val(pmd) & PMD_ISHUGE)
+	if ((pmd_val(pmd) ^ pmd_val(orig)) & _PAGE_PMD_HUGE) {
+		if (pmd_val(pmd) & _PAGE_PMD_HUGE)
 			mm->context.huge_pte_count++;
 		else
 			mm->context.huge_pte_count--;
@@ -178,10 +178,11 @@ void set_pmd_at(struct mm_struct *mm, unsigned long addr,
 	}
 
 	if (!pmd_none(orig)) {
-		bool exec = ((pmd_val(orig) & PMD_HUGE_EXEC) != 0);
+		pte_t orig_pte = __pte(pmd_val(orig));
+		bool exec = pte_exec(orig_pte);
 
 		addr &= HPAGE_MASK;
-		if (pmd_val(orig) & PMD_ISHUGE) {
+		if (pmd_trans_huge(orig)) {
 			tlb_batch_add_one(mm, addr, exec);
 			tlb_batch_add_one(mm, addr + REAL_HPAGE_SIZE, exec);
 		} else {
-- 
cgit 


From 6ff40decff0ef35a5d755ec60182d7f803356dfb Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Tue, 5 Nov 2013 15:07:16 -0500
Subject: nfsd4: improve write performance with better sendspace reservations

Currently the rpc code conservatively refuses to accept rpc's from a
client if the sum of its worst-case estimates of the replies it owes
that client exceed the send buffer space.

Unfortunately our estimate of the worst-case reply for an NFSv4 compound
is always the maximum read size.  This can unnecessarily limit the
number of operations we handle concurrently, for example in the case
most operations are writes (which have small replies).

We can do a little better if we check which ops the compound contains.

This is still a rough estimate, we'll need to improve on it some day.

Reported-by: Shyam Kaushik <shyamnfs1@gmail.com>
Tested-by: Shyam Kaushik <shyamnfs1@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/nfs4xdr.c | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index d9d7fa94967f..9d76ee311ddc 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -1597,12 +1597,39 @@ nfsd4_opnum_in_range(struct nfsd4_compoundargs *argp, struct nfsd4_op *op)
 	return true;
 }
 
+/*
+ * Return a rough estimate of the maximum possible reply size.  Note the
+ * estimate includes rpc headers so is meant to be passed to
+ * svc_reserve, not svc_reserve_auth.
+ *
+ * Also note the current compound encoding permits only one operation to
+ * use pages beyond the first one, so the maximum possible length is the
+ * maximum over these values, not the sum.
+ */
+static int nfsd4_max_reply(u32 opnum)
+{
+	switch (opnum) {
+	case OP_READLINK:
+	case OP_READDIR:
+		/*
+		 * Both of these ops take a single page for data and put
+		 * the head and tail in another page:
+		 */
+		return 2 * PAGE_SIZE;
+	case OP_READ:
+		return INT_MAX;
+	default:
+		return PAGE_SIZE;
+	}
+}
+
 static __be32
 nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
 {
 	DECODE_HEAD;
 	struct nfsd4_op *op;
 	bool cachethis = false;
+	int max_reply = PAGE_SIZE;
 	int i;
 
 	READ_BUF(4);
@@ -1652,10 +1679,14 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
 		 * op in the compound wants to be cached:
 		 */
 		cachethis |= nfsd4_cache_this_op(op);
+
+		max_reply = max(max_reply, nfsd4_max_reply(op->opnum));
 	}
 	/* Sessions make the DRC unnecessary: */
 	if (argp->minorversion)
 		cachethis = false;
+	if (max_reply != INT_MAX)
+		svc_reserve(argp->rqstp, max_reply);
 	argp->rqstp->rq_cachetype = cachethis ? RC_REPLBUFF : RC_NOCACHE;
 
 	DECODE_TAIL;
-- 
cgit 


From 4819224853dff325f0aabdb3dc527d768fa482e3 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Wed, 6 Nov 2013 21:48:22 -0800
Subject: netfilter: fix connlimit Kconfig prompt string

Under Core Netfilter Configuration, connlimit match support has
an extra double quote at the end of it.

Fixes a portion of kernel bugzilla #52671:
  https://bugzilla.kernel.org/show_bug.cgi?id=52671

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reported-by: lailavrazda1979@gmail.com
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index 48acec17e27a..c3398cd99b94 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -909,7 +909,7 @@ config NETFILTER_XT_MATCH_CONNLABEL
 	  connection simultaneously.
 
 config NETFILTER_XT_MATCH_CONNLIMIT
-	tristate '"connlimit" match support"'
+	tristate '"connlimit" match support'
 	depends on NF_CONNTRACK
 	depends on NETFILTER_ADVANCED
 	---help---
-- 
cgit 


From 122f8afcfb3fa77d05e934182242933ac60746cb Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Wed, 13 Nov 2013 14:33:24 -0800
Subject: iscsi-target: Reject unsupported multi PDU text command sequence

This patch adds a check to reject text commands with F_BIT=0 ||
C_BIT=1, as multi PDU text command sequences are currently
unsupported.

This avoids the case where a text command received with F_BIT=0,
was generating a text response with F_BIT=1 which is a protocol
error according to RFC-3720 Section 10.11.1.

Reported-by: Arshad Hussain <arshad.hussain@calsoftinc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/iscsi/iscsi_target.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index ab64cbbb4976..ba9787d24c12 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -1948,6 +1948,13 @@ iscsit_setup_text_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 					 (unsigned char *)hdr);
 	}
 
+	if (!(hdr->flags & ISCSI_FLAG_CMD_FINAL) ||
+	     (hdr->flags & ISCSI_FLAG_TEXT_CONTINUE)) {
+		pr_err("Multi sequence text commands currently not supported\n");
+		return iscsit_reject_cmd(cmd, ISCSI_REASON_CMD_NOT_SUPPORTED,
+					(unsigned char *)hdr);
+	}
+
 	pr_debug("Got Text Request: ITT: 0x%08x, CmdSN: 0x%08x,"
 		" ExpStatSN: 0x%08x, Length: %u\n", hdr->itt, hdr->cmdsn,
 		hdr->exp_statsn, payload_length);
-- 
cgit 


From 29f4c090079f442ea2723d292e4e64f0b6ac1f27 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Wed, 13 Nov 2013 14:39:14 -0800
Subject: target: Fix delayed Task Aborted Status (TAS) handling bug

This patch fixes a bug in delayed Task Aborted Status (TAS) handling,
where transport_send_task_abort() was not returning for the case
when the se_tfo->write_pending() callback indicated that last fabric
specific WRITE PDU had not yet been received.

It also adds an explicit cmd->scsi_status = SAM_STAT_TASK_ABORTED
assignment within transport_check_aborted_status() to avoid the case
where se_tfo->queue_status() is called when the SAM_STAT_TASK_ABORTED
assignment + ->queue_status() in transport_send_task_abort() does not
occur once SCF_SENT_DELAYED_TAS has been set.

Cc: <stable@vger.kernel.org> #3.2+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/target_core_transport.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 71f79f65bdf3..46d82295fac9 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -2682,6 +2682,7 @@ int transport_check_aborted_status(struct se_cmd *cmd, int send_status)
 		 cmd->t_task_cdb[0], cmd->se_tfo->get_task_tag(cmd));
 
 	cmd->se_cmd_flags |= SCF_SENT_DELAYED_TAS;
+	cmd->scsi_status = SAM_STAT_TASK_ABORTED;
 	trace_target_cmd_complete(cmd);
 	cmd->se_tfo->queue_status(cmd);
 
@@ -2710,6 +2711,7 @@ void transport_send_task_abort(struct se_cmd *cmd)
 		if (cmd->se_tfo->write_pending_status(cmd) != 0) {
 			cmd->transport_state |= CMD_T_ABORTED;
 			smp_mb__after_atomic_inc();
+			return;
 		}
 	}
 	cmd->scsi_status = SAM_STAT_TASK_ABORTED;
-- 
cgit 


From aa1b9f13b3346352455bfdc343ecff7667b84ff5 Mon Sep 17 00:00:00 2001
From: Ulf Hansson <ulf.hansson@linaro.org>
Date: Wed, 13 Nov 2013 15:45:03 +0100
Subject: PM / Runtime: Fix error path for prepare

If a device prepare callback for some reason would fail, the PM core
prevented the device from going inactive forever.

In this case, to reverse the pm_runtime_get_noresume() we invokes the
asyncronous pm_runtime_put(), thus restoring the usage count.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/base/power/main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 9f098a82cf04..97db7552e90a 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -1277,6 +1277,9 @@ static int device_prepare(struct device *dev, pm_message_t state)
 
 	device_unlock(dev);
 
+	if (error)
+		pm_runtime_put(dev);
+
 	return error;
 }
 
-- 
cgit 


From 696d0b2c786161ddc1e80dcddce7d34c2a709566 Mon Sep 17 00:00:00 2001
From: viresh kumar <viresh.kumar@linaro.org>
Date: Wed, 13 Nov 2013 15:39:23 +0530
Subject: cpufreq: OMAP: Fix compilation error 'r & ret undeclared'

With a recent change "d4019f0 cpufreq: move freq change notifications to cpufreq
core" few variables (r & ret) are removed by mistake and hence these warnings:

drivers/cpufreq/omap-cpufreq.c: In function omap_target:
drivers/cpufreq/omap-cpufreq.c:64:2: error: ret undeclared (first use in this function)
drivers/cpufreq/omap-cpufreq.c:64:2: note: each undeclared identifier is reported only once for each function it appears in
drivers/cpufreq/omap-cpufreq.c:94:3: error: r undeclared (first use in this function)
drivers/cpufreq/omap-cpufreq.c:116:1: warning: control reaches end of non-void function [-Wreturn-type]

Lets fix them by declaring those variables again.

Fixes: d4019f0a92ab (cpufreq: move freq change notifications to cpufreq core)
Reported-by: Sebastian Capella <sebastian.capella@linaro.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/omap-cpufreq.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/cpufreq/omap-cpufreq.c b/drivers/cpufreq/omap-cpufreq.c
index be6d14307aa8..a0acd0bfba40 100644
--- a/drivers/cpufreq/omap-cpufreq.c
+++ b/drivers/cpufreq/omap-cpufreq.c
@@ -53,6 +53,7 @@ static unsigned int omap_getspeed(unsigned int cpu)
 
 static int omap_target(struct cpufreq_policy *policy, unsigned int index)
 {
+	int r, ret;
 	struct dev_pm_opp *opp;
 	unsigned long freq, volt = 0, volt_old = 0, tol = 0;
 	unsigned int old_freq, new_freq;
-- 
cgit 


From 6d769f1e1420179d1f83cf1a9cdc585b46c28545 Mon Sep 17 00:00:00 2001
From: Jeff Layton <jlayton@redhat.com>
Date: Wed, 13 Nov 2013 09:08:21 -0500
Subject: nfs: don't retry detect_trunking with RPC_AUTH_UNIX more than once

Currently, when we try to mount and get back NFS4ERR_CLID_IN_USE or
NFS4ERR_WRONGSEC, we create a new rpc_clnt and then try the call again.
There is no guarantee that doing so will work however, so we can end up
retrying the call in an infinite loop.

Worse yet, we create the new client using rpc_clone_client_set_auth,
which creates the new client as a child of the old one. Thus, we can end
up with a *very* long lineage of rpc_clnts. When we go to put all of the
references to them, we can end up with a long call chain that can smash
the stack as each rpc_free_client() call can recurse back into itself.

This patch fixes this by simply ensuring that the SETCLIENTID call will
only be retried in this situation if the last attempt did not use
RPC_AUTH_UNIX.

Note too that with this change, we don't need the (i > 2) check in the
-EACCES case since we now have a more reliable test as to whether we
should reattempt.

Cc: stable@vger.kernel.org # v3.10+
Cc: Chuck Lever <chuck.lever@oracle.com>
Tested-by/Acked-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4state.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index c8e729deb4f7..6f0470667f95 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -2093,10 +2093,15 @@ again:
 			nfs4_root_machine_cred(clp);
 			goto again;
 		}
-		if (i > 2)
+		if (clnt->cl_auth->au_flavor == RPC_AUTH_UNIX)
 			break;
 	case -NFS4ERR_CLID_INUSE:
 	case -NFS4ERR_WRONGSEC:
+		/* No point in retrying if we already used RPC_AUTH_UNIX */
+		if (clnt->cl_auth->au_flavor == RPC_AUTH_UNIX) {
+			status = -EPERM;
+			break;
+		}
 		clnt = rpc_clone_client_set_auth(clnt, RPC_AUTH_UNIX);
 		if (IS_ERR(clnt)) {
 			status = PTR_ERR(clnt);
-- 
cgit 


From 56ea27fd61f546117a35236113be72c8aaec382d Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Fri, 18 Oct 2013 19:35:22 +0200
Subject: dmaengine: consolidate memcpy apis

Copying from page to page (dma_async_memcpy_pg_to_pg) is the superset,
make the other two apis use that one in preparation for providing a
common dma unmap implementation.  The common implementation just wants
to assume all buffers are mapped with dma_map_page().

Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dma/dmaengine.c | 137 ++++++++++++++++--------------------------------
 1 file changed, 45 insertions(+), 92 deletions(-)

diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 9162ac80c18f..bbc89df6bc56 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -902,20 +902,23 @@ void dma_async_device_unregister(struct dma_device *device)
 EXPORT_SYMBOL(dma_async_device_unregister);
 
 /**
- * dma_async_memcpy_buf_to_buf - offloaded copy between virtual addresses
+ * dma_async_memcpy_pg_to_pg - offloaded copy from page to page
  * @chan: DMA channel to offload copy to
- * @dest: destination address (virtual)
- * @src: source address (virtual)
+ * @dest_pg: destination page
+ * @dest_off: offset in page to copy to
+ * @src_pg: source page
+ * @src_off: offset in page to copy from
  * @len: length
  *
- * Both @dest and @src must be mappable to a bus address according to the
- * DMA mapping API rules for streaming mappings.
- * Both @dest and @src must stay memory resident (kernel memory or locked
- * user space pages).
+ * Both @dest_page/@dest_off and @src_page/@src_off must be mappable to a bus
+ * address according to the DMA mapping API rules for streaming mappings.
+ * Both @dest_page/@dest_off and @src_page/@src_off must stay memory resident
+ * (kernel memory or locked user space pages).
  */
 dma_cookie_t
-dma_async_memcpy_buf_to_buf(struct dma_chan *chan, void *dest,
-			void *src, size_t len)
+dma_async_memcpy_pg_to_pg(struct dma_chan *chan, struct page *dest_pg,
+	unsigned int dest_off, struct page *src_pg, unsigned int src_off,
+	size_t len)
 {
 	struct dma_device *dev = chan->device;
 	struct dma_async_tx_descriptor *tx;
@@ -923,16 +926,15 @@ dma_async_memcpy_buf_to_buf(struct dma_chan *chan, void *dest,
 	dma_cookie_t cookie;
 	unsigned long flags;
 
-	dma_src = dma_map_single(dev->dev, src, len, DMA_TO_DEVICE);
-	dma_dest = dma_map_single(dev->dev, dest, len, DMA_FROM_DEVICE);
-	flags = DMA_CTRL_ACK |
-		DMA_COMPL_SRC_UNMAP_SINGLE |
-		DMA_COMPL_DEST_UNMAP_SINGLE;
+	dma_src = dma_map_page(dev->dev, src_pg, src_off, len, DMA_TO_DEVICE);
+	dma_dest = dma_map_page(dev->dev, dest_pg, dest_off, len,
+				DMA_FROM_DEVICE);
+	flags = DMA_CTRL_ACK;
 	tx = dev->device_prep_dma_memcpy(chan, dma_dest, dma_src, len, flags);
 
 	if (!tx) {
-		dma_unmap_single(dev->dev, dma_src, len, DMA_TO_DEVICE);
-		dma_unmap_single(dev->dev, dma_dest, len, DMA_FROM_DEVICE);
+		dma_unmap_page(dev->dev, dma_src, len, DMA_TO_DEVICE);
+		dma_unmap_page(dev->dev, dma_dest, len, DMA_FROM_DEVICE);
 		return -ENOMEM;
 	}
 
@@ -946,6 +948,29 @@ dma_async_memcpy_buf_to_buf(struct dma_chan *chan, void *dest,
 
 	return cookie;
 }
+EXPORT_SYMBOL(dma_async_memcpy_pg_to_pg);
+
+/**
+ * dma_async_memcpy_buf_to_buf - offloaded copy between virtual addresses
+ * @chan: DMA channel to offload copy to
+ * @dest: destination address (virtual)
+ * @src: source address (virtual)
+ * @len: length
+ *
+ * Both @dest and @src must be mappable to a bus address according to the
+ * DMA mapping API rules for streaming mappings.
+ * Both @dest and @src must stay memory resident (kernel memory or locked
+ * user space pages).
+ */
+dma_cookie_t
+dma_async_memcpy_buf_to_buf(struct dma_chan *chan, void *dest,
+			    void *src, size_t len)
+{
+	return dma_async_memcpy_pg_to_pg(chan, virt_to_page(dest),
+					 (unsigned long) dest & ~PAGE_MASK,
+					 virt_to_page(src),
+					 (unsigned long) src & ~PAGE_MASK, len);
+}
 EXPORT_SYMBOL(dma_async_memcpy_buf_to_buf);
 
 /**
@@ -963,86 +988,14 @@ EXPORT_SYMBOL(dma_async_memcpy_buf_to_buf);
  */
 dma_cookie_t
 dma_async_memcpy_buf_to_pg(struct dma_chan *chan, struct page *page,
-			unsigned int offset, void *kdata, size_t len)
+			   unsigned int offset, void *kdata, size_t len)
 {
-	struct dma_device *dev = chan->device;
-	struct dma_async_tx_descriptor *tx;
-	dma_addr_t dma_dest, dma_src;
-	dma_cookie_t cookie;
-	unsigned long flags;
-
-	dma_src = dma_map_single(dev->dev, kdata, len, DMA_TO_DEVICE);
-	dma_dest = dma_map_page(dev->dev, page, offset, len, DMA_FROM_DEVICE);
-	flags = DMA_CTRL_ACK | DMA_COMPL_SRC_UNMAP_SINGLE;
-	tx = dev->device_prep_dma_memcpy(chan, dma_dest, dma_src, len, flags);
-
-	if (!tx) {
-		dma_unmap_single(dev->dev, dma_src, len, DMA_TO_DEVICE);
-		dma_unmap_page(dev->dev, dma_dest, len, DMA_FROM_DEVICE);
-		return -ENOMEM;
-	}
-
-	tx->callback = NULL;
-	cookie = tx->tx_submit(tx);
-
-	preempt_disable();
-	__this_cpu_add(chan->local->bytes_transferred, len);
-	__this_cpu_inc(chan->local->memcpy_count);
-	preempt_enable();
-
-	return cookie;
+	return dma_async_memcpy_pg_to_pg(chan, page, offset,
+					 virt_to_page(kdata),
+					 (unsigned long) kdata & ~PAGE_MASK, len);
 }
 EXPORT_SYMBOL(dma_async_memcpy_buf_to_pg);
 
-/**
- * dma_async_memcpy_pg_to_pg - offloaded copy from page to page
- * @chan: DMA channel to offload copy to
- * @dest_pg: destination page
- * @dest_off: offset in page to copy to
- * @src_pg: source page
- * @src_off: offset in page to copy from
- * @len: length
- *
- * Both @dest_page/@dest_off and @src_page/@src_off must be mappable to a bus
- * address according to the DMA mapping API rules for streaming mappings.
- * Both @dest_page/@dest_off and @src_page/@src_off must stay memory resident
- * (kernel memory or locked user space pages).
- */
-dma_cookie_t
-dma_async_memcpy_pg_to_pg(struct dma_chan *chan, struct page *dest_pg,
-	unsigned int dest_off, struct page *src_pg, unsigned int src_off,
-	size_t len)
-{
-	struct dma_device *dev = chan->device;
-	struct dma_async_tx_descriptor *tx;
-	dma_addr_t dma_dest, dma_src;
-	dma_cookie_t cookie;
-	unsigned long flags;
-
-	dma_src = dma_map_page(dev->dev, src_pg, src_off, len, DMA_TO_DEVICE);
-	dma_dest = dma_map_page(dev->dev, dest_pg, dest_off, len,
-				DMA_FROM_DEVICE);
-	flags = DMA_CTRL_ACK;
-	tx = dev->device_prep_dma_memcpy(chan, dma_dest, dma_src, len, flags);
-
-	if (!tx) {
-		dma_unmap_page(dev->dev, dma_src, len, DMA_TO_DEVICE);
-		dma_unmap_page(dev->dev, dma_dest, len, DMA_FROM_DEVICE);
-		return -ENOMEM;
-	}
-
-	tx->callback = NULL;
-	cookie = tx->tx_submit(tx);
-
-	preempt_disable();
-	__this_cpu_add(chan->local->bytes_transferred, len);
-	__this_cpu_inc(chan->local->memcpy_count);
-	preempt_enable();
-
-	return cookie;
-}
-EXPORT_SYMBOL(dma_async_memcpy_pg_to_pg);
-
 void dma_async_tx_descriptor_init(struct dma_async_tx_descriptor *tx,
 	struct dma_chan *chan)
 {
-- 
cgit 


From d38a8c622a1b382336c3e152c6caf4e11d1f1b2a Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Fri, 18 Oct 2013 19:35:23 +0200
Subject: dmaengine: prepare for generic 'unmap' data

Add a hook for a common dma unmap implementation to enable removal of
the per driver custom unmap code.  (A reworked version of Bartlomiej
Zolnierkiewicz's patches to remove the custom callbacks and the size
increase of dma_async_tx_descriptor for drivers that don't care about
raid).

Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Dave Jiang <dave.jiang@intel.com>
[bzolnier: prepare pl330 driver for adding missing unmap while at it]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dma/amba-pl08x.c  |  1 +
 drivers/dma/at_hdmac.c    |  1 +
 drivers/dma/dw/core.c     |  1 +
 drivers/dma/ep93xx_dma.c  |  1 +
 drivers/dma/fsldma.c      |  1 +
 drivers/dma/ioat/dma.c    |  1 +
 drivers/dma/ioat/dma_v2.c |  1 +
 drivers/dma/ioat/dma_v3.c |  1 +
 drivers/dma/iop-adma.c    |  1 +
 drivers/dma/mv_xor.c      |  1 +
 drivers/dma/pl330.c       |  2 ++
 drivers/dma/ppc4xx/adma.c |  1 +
 drivers/dma/timb_dma.c    |  1 +
 drivers/dma/txx9dmac.c    |  1 +
 include/linux/dmaengine.h | 26 ++++++++++++++++++++++++++
 15 files changed, 41 insertions(+)

diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index fce46c5bf1c7..7f9846464b77 100644
--- a/drivers/dma/amba-pl08x.c
+++ b/drivers/dma/amba-pl08x.c
@@ -1197,6 +1197,7 @@ static void pl08x_desc_free(struct virt_dma_desc *vd)
 	struct pl08x_txd *txd = to_pl08x_txd(&vd->tx);
 	struct pl08x_dma_chan *plchan = to_pl08x_chan(vd->tx.chan);
 
+	dma_descriptor_unmap(txd);
 	if (!plchan->slave)
 		pl08x_unmap_buffers(txd);
 
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index c787f38a186a..cc7098ddf9d4 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -345,6 +345,7 @@ atc_chain_complete(struct at_dma_chan *atchan, struct at_desc *desc)
 	list_move(&desc->desc_node, &atchan->free_list);
 
 	/* unmap dma addresses (not on slave channels) */
+	dma_descriptor_unmap(txd);
 	if (!atchan->chan_common.private) {
 		struct device *parent = chan2parent(&atchan->chan_common);
 		if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c
index 89eb89f22284..e3fe1b1a73b1 100644
--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -311,6 +311,7 @@ dwc_descriptor_complete(struct dw_dma_chan *dwc, struct dw_desc *desc,
 	list_splice_init(&desc->tx_list, &dwc->free_list);
 	list_move(&desc->desc_node, &dwc->free_list);
 
+	dma_descriptor_unmap(txd);
 	if (!is_slave_direction(dwc->direction)) {
 		struct device *parent = chan2parent(&dwc->chan);
 		if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
diff --git a/drivers/dma/ep93xx_dma.c b/drivers/dma/ep93xx_dma.c
index 591cd8c63abb..dcd6bf5d3091 100644
--- a/drivers/dma/ep93xx_dma.c
+++ b/drivers/dma/ep93xx_dma.c
@@ -791,6 +791,7 @@ static void ep93xx_dma_tasklet(unsigned long data)
 		 * For the memcpy channels the API requires us to unmap the
 		 * buffers unless requested otherwise.
 		 */
+		dma_descriptor_unmap(&desc->txd);
 		if (!edmac->chan.private)
 			ep93xx_dma_unmap_buffers(desc);
 
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index b3f3e90054f2..66c4052a1f34 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -868,6 +868,7 @@ static void fsldma_cleanup_descriptor(struct fsldma_chan *chan,
 	/* Run any dependencies */
 	dma_run_dependencies(txd);
 
+	dma_descriptor_unmap(txd);
 	/* Unmap the dst buffer, if requested */
 	if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
 		if (txd->flags & DMA_COMPL_DEST_UNMAP_SINGLE)
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index 5ff6fc1819dc..26f8cfd6bc3f 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -602,6 +602,7 @@ static void __cleanup(struct ioat_dma_chan *ioat, dma_addr_t phys_complete)
 		dump_desc_dbg(ioat, desc);
 		if (tx->cookie) {
 			dma_cookie_complete(tx);
+			dma_descriptor_unmap(tx);
 			ioat_dma_unmap(chan, tx->flags, desc->len, desc->hw);
 			ioat->active -= desc->hw->tx_cnt;
 			if (tx->callback) {
diff --git a/drivers/dma/ioat/dma_v2.c b/drivers/dma/ioat/dma_v2.c
index b925e1b1d139..fc7b50a813cc 100644
--- a/drivers/dma/ioat/dma_v2.c
+++ b/drivers/dma/ioat/dma_v2.c
@@ -148,6 +148,7 @@ static void __cleanup(struct ioat2_dma_chan *ioat, dma_addr_t phys_complete)
 		tx = &desc->txd;
 		dump_desc_dbg(ioat, desc);
 		if (tx->cookie) {
+			dma_descriptor_unmap(tx);
 			ioat_dma_unmap(chan, tx->flags, desc->len, desc->hw);
 			dma_cookie_complete(tx);
 			if (tx->callback) {
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index d8ececaf1b57..57a2901b917a 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -577,6 +577,7 @@ static void __cleanup(struct ioat2_dma_chan *ioat, dma_addr_t phys_complete)
 		tx = &desc->txd;
 		if (tx->cookie) {
 			dma_cookie_complete(tx);
+			dma_descriptor_unmap(tx);
 			ioat3_dma_unmap(ioat, desc, idx + i);
 			if (tx->callback) {
 				tx->callback(tx->callback_param);
diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c
index dd8b44a56e5d..8f6e426590eb 100644
--- a/drivers/dma/iop-adma.c
+++ b/drivers/dma/iop-adma.c
@@ -152,6 +152,7 @@ iop_adma_run_tx_complete_actions(struct iop_adma_desc_slot *desc,
 		if (tx->callback)
 			tx->callback(tx->callback_param);
 
+		dma_descriptor_unmap(tx);
 		/* unmap dma addresses
 		 * (unmap_single vs unmap_page?)
 		 */
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index 536dcb8ba5fd..ed1ab1d0875e 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -278,6 +278,7 @@ mv_xor_run_tx_complete_actions(struct mv_xor_desc_slot *desc,
 			desc->async_tx.callback(
 				desc->async_tx.callback_param);
 
+		dma_descriptor_unmap(&desc->async_tx);
 		/* unmap dma addresses
 		 * (unmap_single vs unmap_page?)
 		 */
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index a562d24d20bf..ab25e52cd43b 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -2268,6 +2268,8 @@ static void pl330_tasklet(unsigned long data)
 			list_move_tail(&desc->node, &pch->dmac->desc_pool);
 		}
 
+		dma_descriptor_unmap(&desc->txd);
+
 		if (callback) {
 			spin_unlock_irqrestore(&pch->lock, flags);
 			callback(callback_param);
diff --git a/drivers/dma/ppc4xx/adma.c b/drivers/dma/ppc4xx/adma.c
index 370ff8265630..442492da7415 100644
--- a/drivers/dma/ppc4xx/adma.c
+++ b/drivers/dma/ppc4xx/adma.c
@@ -1765,6 +1765,7 @@ static dma_cookie_t ppc440spe_adma_run_tx_complete_actions(
 			desc->async_tx.callback(
 				desc->async_tx.callback_param);
 
+		dma_descriptor_unmap(&desc->async_tx);
 		/* unmap dma addresses
 		 * (unmap_single vs unmap_page?)
 		 *
diff --git a/drivers/dma/timb_dma.c b/drivers/dma/timb_dma.c
index 28af214fce04..1d0c98839087 100644
--- a/drivers/dma/timb_dma.c
+++ b/drivers/dma/timb_dma.c
@@ -293,6 +293,7 @@ static void __td_finish(struct timb_dma_chan *td_chan)
 
 	list_move(&td_desc->desc_node, &td_chan->free_list);
 
+	dma_descriptor_unmap(txd);
 	if (!(txd->flags & DMA_COMPL_SKIP_SRC_UNMAP))
 		__td_unmap_descs(td_desc,
 			txd->flags & DMA_COMPL_SRC_UNMAP_SINGLE);
diff --git a/drivers/dma/txx9dmac.c b/drivers/dma/txx9dmac.c
index 71e8e775189e..22a0b6c78c77 100644
--- a/drivers/dma/txx9dmac.c
+++ b/drivers/dma/txx9dmac.c
@@ -419,6 +419,7 @@ txx9dmac_descriptor_complete(struct txx9dmac_chan *dc,
 	list_splice_init(&desc->tx_list, &dc->free_list);
 	list_move(&desc->desc_node, &dc->free_list);
 
+	dma_descriptor_unmap(txd);
 	if (!ds) {
 		dma_addr_t dmaaddr;
 		if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 0bc727534108..9070050fbcd8 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -413,6 +413,17 @@ void dma_chan_cleanup(struct kref *kref);
 typedef bool (*dma_filter_fn)(struct dma_chan *chan, void *filter_param);
 
 typedef void (*dma_async_tx_callback)(void *dma_async_param);
+
+struct dmaengine_unmap_data {
+	u8 to_cnt;
+	u8 from_cnt;
+	u8 bidi_cnt;
+	struct device *dev;
+	struct kref kref;
+	size_t len;
+	dma_addr_t addr[0];
+};
+
 /**
  * struct dma_async_tx_descriptor - async transaction descriptor
  * ---dma generic offload fields---
@@ -438,6 +449,7 @@ struct dma_async_tx_descriptor {
 	dma_cookie_t (*tx_submit)(struct dma_async_tx_descriptor *tx);
 	dma_async_tx_callback callback;
 	void *callback_param;
+	struct dmaengine_unmap_data *unmap;
 #ifdef CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH
 	struct dma_async_tx_descriptor *next;
 	struct dma_async_tx_descriptor *parent;
@@ -445,6 +457,20 @@ struct dma_async_tx_descriptor {
 #endif
 };
 
+static inline void dma_set_unmap(struct dma_async_tx_descriptor *tx,
+				 struct dmaengine_unmap_data *unmap)
+{
+	kref_get(&unmap->kref);
+	tx->unmap = unmap;
+}
+
+static inline void dma_descriptor_unmap(struct dma_async_tx_descriptor *tx)
+{
+	if (tx->unmap) {
+		tx->unmap = NULL;
+	}
+}
+
 #ifndef CONFIG_ASYNC_TX_ENABLE_CHANNEL_SWITCH
 static inline void txd_lock(struct dma_async_tx_descriptor *txd)
 {
-- 
cgit 


From 45c463ae924c62af4aa64ded1ca831f334a1db65 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Fri, 18 Oct 2013 19:35:24 +0200
Subject: dmaengine: reference counted unmap data

Hang a common 'unmap' object off of dma descriptors for the purpose of
providing a unified unmapping interface.  The lifetime of a mapping may
span multiple descriptors, so these unmap objects are reference counted
by related descriptor.

Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Dave Jiang <dave.jiang@intel.com>
[bzolnier: fix IS_ENABLED() check]
[bzolnier: fix release ordering in dmaengine_destroy_unmap_pool()]
[bzolnier: fix check for success in dmaengine_init_unmap_pool()]
[bzolnier: use mempool_free() instead of kmem_cache_free()]
[bzolnier: add missing unmap->len initializations]
[bzolnier: add __init tag to dmaengine_init_unmap_pool()]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
[djbw: move DMAENGINE=n support to this patch for async_tx]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dma/dmaengine.c   | 156 +++++++++++++++++++++++++++++++++++++++++++---
 include/linux/dmaengine.h |   3 +
 2 files changed, 150 insertions(+), 9 deletions(-)

diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index bbc89df6bc56..e721a1caff7f 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -65,6 +65,7 @@
 #include <linux/acpi.h>
 #include <linux/acpi_dma.h>
 #include <linux/of_dma.h>
+#include <linux/mempool.h>
 
 static DEFINE_MUTEX(dma_list_mutex);
 static DEFINE_IDR(dma_idr);
@@ -901,6 +902,129 @@ void dma_async_device_unregister(struct dma_device *device)
 }
 EXPORT_SYMBOL(dma_async_device_unregister);
 
+struct dmaengine_unmap_pool {
+	struct kmem_cache *cache;
+	const char *name;
+	mempool_t *pool;
+	size_t size;
+};
+
+#define __UNMAP_POOL(x) { .size = x, .name = "dmaengine-unmap-" __stringify(x) }
+static struct dmaengine_unmap_pool unmap_pool[] = {
+	__UNMAP_POOL(2),
+	#if IS_ENABLED(CONFIG_ASYNC_TX_DMA)
+	__UNMAP_POOL(16),
+	__UNMAP_POOL(128),
+	__UNMAP_POOL(256),
+	#endif
+};
+
+static struct dmaengine_unmap_pool *__get_unmap_pool(int nr)
+{
+	int order = get_count_order(nr);
+
+	switch (order) {
+	case 0 ... 1:
+		return &unmap_pool[0];
+	case 2 ... 4:
+		return &unmap_pool[1];
+	case 5 ... 7:
+		return &unmap_pool[2];
+	case 8:
+		return &unmap_pool[3];
+	default:
+		BUG();
+		return NULL;
+	}
+}
+
+static void dmaengine_unmap(struct kref *kref)
+{
+	struct dmaengine_unmap_data *unmap = container_of(kref, typeof(*unmap), kref);
+	struct device *dev = unmap->dev;
+	int cnt, i;
+
+	cnt = unmap->to_cnt;
+	for (i = 0; i < cnt; i++)
+		dma_unmap_page(dev, unmap->addr[i], unmap->len,
+			       DMA_TO_DEVICE);
+	cnt += unmap->from_cnt;
+	for (; i < cnt; i++)
+		dma_unmap_page(dev, unmap->addr[i], unmap->len,
+			       DMA_FROM_DEVICE);
+	cnt += unmap->bidi_cnt;
+	for (; i < cnt; i++)
+		dma_unmap_page(dev, unmap->addr[i], unmap->len,
+			       DMA_BIDIRECTIONAL);
+	mempool_free(unmap, __get_unmap_pool(cnt)->pool);
+}
+
+void dmaengine_unmap_put(struct dmaengine_unmap_data *unmap)
+{
+	if (unmap)
+		kref_put(&unmap->kref, dmaengine_unmap);
+}
+EXPORT_SYMBOL_GPL(dmaengine_unmap_put);
+
+static void dmaengine_destroy_unmap_pool(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(unmap_pool); i++) {
+		struct dmaengine_unmap_pool *p = &unmap_pool[i];
+
+		if (p->pool)
+			mempool_destroy(p->pool);
+		p->pool = NULL;
+		if (p->cache)
+			kmem_cache_destroy(p->cache);
+		p->cache = NULL;
+	}
+}
+
+static int __init dmaengine_init_unmap_pool(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(unmap_pool); i++) {
+		struct dmaengine_unmap_pool *p = &unmap_pool[i];
+		size_t size;
+
+		size = sizeof(struct dmaengine_unmap_data) +
+		       sizeof(dma_addr_t) * p->size;
+
+		p->cache = kmem_cache_create(p->name, size, 0,
+					     SLAB_HWCACHE_ALIGN, NULL);
+		if (!p->cache)
+			break;
+		p->pool = mempool_create_slab_pool(1, p->cache);
+		if (!p->pool)
+			break;
+	}
+
+	if (i == ARRAY_SIZE(unmap_pool))
+		return 0;
+
+	dmaengine_destroy_unmap_pool();
+	return -ENOMEM;
+}
+
+static struct dmaengine_unmap_data *
+dmaengine_get_unmap_data(struct device *dev, int nr, gfp_t flags)
+{
+	struct dmaengine_unmap_data *unmap;
+
+	unmap = mempool_alloc(__get_unmap_pool(nr)->pool, flags);
+	if (!unmap)
+		return NULL;
+
+	memset(unmap, 0, sizeof(*unmap));
+	kref_init(&unmap->kref);
+	unmap->dev = dev;
+
+	return unmap;
+}
+
 /**
  * dma_async_memcpy_pg_to_pg - offloaded copy from page to page
  * @chan: DMA channel to offload copy to
@@ -922,24 +1046,34 @@ dma_async_memcpy_pg_to_pg(struct dma_chan *chan, struct page *dest_pg,
 {
 	struct dma_device *dev = chan->device;
 	struct dma_async_tx_descriptor *tx;
-	dma_addr_t dma_dest, dma_src;
+	struct dmaengine_unmap_data *unmap;
 	dma_cookie_t cookie;
 	unsigned long flags;
 
-	dma_src = dma_map_page(dev->dev, src_pg, src_off, len, DMA_TO_DEVICE);
-	dma_dest = dma_map_page(dev->dev, dest_pg, dest_off, len,
-				DMA_FROM_DEVICE);
-	flags = DMA_CTRL_ACK;
-	tx = dev->device_prep_dma_memcpy(chan, dma_dest, dma_src, len, flags);
+	unmap = dmaengine_get_unmap_data(dev->dev, 2, GFP_NOIO);
+	if (!unmap)
+		return -ENOMEM;
+
+	unmap->to_cnt = 1;
+	unmap->from_cnt = 1;
+	unmap->addr[0] = dma_map_page(dev->dev, src_pg, src_off, len,
+				      DMA_TO_DEVICE);
+	unmap->addr[1] = dma_map_page(dev->dev, dest_pg, dest_off, len,
+				      DMA_FROM_DEVICE);
+	unmap->len = len;
+	flags = DMA_CTRL_ACK | DMA_COMPL_SKIP_SRC_UNMAP |
+		DMA_COMPL_SKIP_DEST_UNMAP;
+	tx = dev->device_prep_dma_memcpy(chan, unmap->addr[1], unmap->addr[0],
+					 len, flags);
 
 	if (!tx) {
-		dma_unmap_page(dev->dev, dma_src, len, DMA_TO_DEVICE);
-		dma_unmap_page(dev->dev, dma_dest, len, DMA_FROM_DEVICE);
+		dmaengine_unmap_put(unmap);
 		return -ENOMEM;
 	}
 
-	tx->callback = NULL;
+	dma_set_unmap(tx, unmap);
 	cookie = tx->tx_submit(tx);
+	dmaengine_unmap_put(unmap);
 
 	preempt_disable();
 	__this_cpu_add(chan->local->bytes_transferred, len);
@@ -1069,6 +1203,10 @@ EXPORT_SYMBOL_GPL(dma_run_dependencies);
 
 static int __init dma_bus_init(void)
 {
+	int err = dmaengine_init_unmap_pool();
+
+	if (err)
+		return err;
 	return class_register(&dma_devclass);
 }
 arch_initcall(dma_bus_init);
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 9070050fbcd8..2fe855a7cab1 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -464,9 +464,12 @@ static inline void dma_set_unmap(struct dma_async_tx_descriptor *tx,
 	tx->unmap = unmap;
 }
 
+void dmaengine_unmap_put(struct dmaengine_unmap_data *unmap);
+
 static inline void dma_descriptor_unmap(struct dma_async_tx_descriptor *tx)
 {
 	if (tx->unmap) {
+		dmaengine_unmap_put(tx->unmap);
 		tx->unmap = NULL;
 	}
 }
-- 
cgit 


From ee480683d975973e3ff679850871e00e011c4a96 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Wed, 13 Nov 2013 18:34:55 -0800
Subject: target: Convert se_device statistics to atomic_long_t

This patch converts the handful of se_device statistics to type
atomic_long_t, instead of using se_device->stats_lock when
incrementing these values.

More importantly, go ahead and drop the spinlock usage within
transport_lookup_cmd_lun() fast-path code.

Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/target_core_device.c | 10 +++-------
 drivers/target/target_core_stat.c   | 15 +++++++++------
 drivers/target/target_core_tmr.c    |  4 +---
 include/target/target_core_base.h   |  9 ++++-----
 4 files changed, 17 insertions(+), 21 deletions(-)

diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index dbe40ef14776..986afd2ee3f6 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -130,15 +130,12 @@ transport_lookup_cmd_lun(struct se_cmd *se_cmd, u32 unpacked_lun)
 	/* Directly associate cmd with se_dev */
 	se_cmd->se_dev = se_lun->lun_se_dev;
 
-	/* TODO: get rid of this and use atomics for stats */
 	dev = se_lun->lun_se_dev;
-	spin_lock_irqsave(&dev->stats_lock, flags);
-	dev->num_cmds++;
+	atomic_long_inc(&dev->num_cmds);
 	if (se_cmd->data_direction == DMA_TO_DEVICE)
-		dev->write_bytes += se_cmd->data_length;
+		atomic_long_add(se_cmd->data_length, &dev->write_bytes);
 	else if (se_cmd->data_direction == DMA_FROM_DEVICE)
-		dev->read_bytes += se_cmd->data_length;
-	spin_unlock_irqrestore(&dev->stats_lock, flags);
+		atomic_long_add(se_cmd->data_length, &dev->read_bytes);
 
 	return 0;
 }
@@ -1426,7 +1423,6 @@ struct se_device *target_alloc_device(struct se_hba *hba, const char *name)
 	INIT_LIST_HEAD(&dev->state_list);
 	INIT_LIST_HEAD(&dev->qf_cmd_list);
 	INIT_LIST_HEAD(&dev->g_dev_node);
-	spin_lock_init(&dev->stats_lock);
 	spin_lock_init(&dev->execute_task_lock);
 	spin_lock_init(&dev->delayed_cmd_lock);
 	spin_lock_init(&dev->dev_reservation_lock);
diff --git a/drivers/target/target_core_stat.c b/drivers/target/target_core_stat.c
index 632665c026a8..03538994d2f7 100644
--- a/drivers/target/target_core_stat.c
+++ b/drivers/target/target_core_stat.c
@@ -213,7 +213,8 @@ static ssize_t target_stat_scsi_tgt_dev_show_attr_resets(
 	struct se_device *dev =
 		container_of(sgrps, struct se_device, dev_stat_grps);
 
-	return snprintf(page, PAGE_SIZE, "%u\n", dev->num_resets);
+	return snprintf(page, PAGE_SIZE, "%lu\n",
+			atomic_long_read(&dev->num_resets));
 }
 DEV_STAT_SCSI_TGT_DEV_ATTR_RO(resets);
 
@@ -396,8 +397,8 @@ static ssize_t target_stat_scsi_lu_show_attr_num_cmds(
 		container_of(sgrps, struct se_device, dev_stat_grps);
 
 	/* scsiLuNumCommands */
-	return snprintf(page, PAGE_SIZE, "%llu\n",
-			(unsigned long long)dev->num_cmds);
+	return snprintf(page, PAGE_SIZE, "%lu\n",
+			atomic_long_read(&dev->num_cmds));
 }
 DEV_STAT_SCSI_LU_ATTR_RO(num_cmds);
 
@@ -408,7 +409,8 @@ static ssize_t target_stat_scsi_lu_show_attr_read_mbytes(
 		container_of(sgrps, struct se_device, dev_stat_grps);
 
 	/* scsiLuReadMegaBytes */
-	return snprintf(page, PAGE_SIZE, "%u\n", (u32)(dev->read_bytes >> 20));
+	return snprintf(page, PAGE_SIZE, "%lu\n",
+			atomic_long_read(&dev->read_bytes) >> 20);
 }
 DEV_STAT_SCSI_LU_ATTR_RO(read_mbytes);
 
@@ -419,7 +421,8 @@ static ssize_t target_stat_scsi_lu_show_attr_write_mbytes(
 		container_of(sgrps, struct se_device, dev_stat_grps);
 
 	/* scsiLuWrittenMegaBytes */
-	return snprintf(page, PAGE_SIZE, "%u\n", (u32)(dev->write_bytes >> 20));
+	return snprintf(page, PAGE_SIZE, "%lu\n",
+			atomic_long_read(&dev->write_bytes) >> 20);
 }
 DEV_STAT_SCSI_LU_ATTR_RO(write_mbytes);
 
@@ -430,7 +433,7 @@ static ssize_t target_stat_scsi_lu_show_attr_resets(
 		container_of(sgrps, struct se_device, dev_stat_grps);
 
 	/* scsiLuInResets */
-	return snprintf(page, PAGE_SIZE, "%u\n", dev->num_resets);
+	return snprintf(page, PAGE_SIZE, "%lu\n", atomic_long_read(&dev->num_resets));
 }
 DEV_STAT_SCSI_LU_ATTR_RO(resets);
 
diff --git a/drivers/target/target_core_tmr.c b/drivers/target/target_core_tmr.c
index 250009909d49..70c638f730af 100644
--- a/drivers/target/target_core_tmr.c
+++ b/drivers/target/target_core_tmr.c
@@ -386,9 +386,7 @@ int core_tmr_lun_reset(
 		pr_debug("LUN_RESET: SCSI-2 Released reservation\n");
 	}
 
-	spin_lock_irq(&dev->stats_lock);
-	dev->num_resets++;
-	spin_unlock_irq(&dev->stats_lock);
+	atomic_long_inc(&dev->num_resets);
 
 	pr_debug("LUN_RESET: %s for [%s] Complete\n",
 			(preempt_and_abort_list) ? "Preempt" : "TMR",
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 96bf1b0239cc..fab91baf8ef4 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -683,11 +683,10 @@ struct se_device {
 	/* Pointer to transport specific device structure */
 	u32			dev_index;
 	u64			creation_time;
-	u32			num_resets;
-	u64			num_cmds;
-	u64			read_bytes;
-	u64			write_bytes;
-	spinlock_t		stats_lock;
+	atomic_long_t		num_resets;
+	atomic_long_t		num_cmds;
+	atomic_long_t		read_bytes;
+	atomic_long_t		write_bytes;
 	/* Active commands on this virtual SE device */
 	atomic_t		simple_cmds;
 	atomic_t		dev_ordered_id;
-- 
cgit 


From ad4068de49862b083ac2a15bc50689bb30ce3e44 Mon Sep 17 00:00:00 2001
From: majianpeng <majianpeng@gmail.com>
Date: Thu, 14 Nov 2013 15:16:15 +1100
Subject: raid5: Use slow_path to release stripe when mddev->thread is null

When release_stripe() is called in grow_one_stripe(), the
mddev->thread is null. So it will omit one wakeup this thread to
release stripe.
For this condition, use slow_path to release stripe.

Bug was introduced in 3.12

Cc: stable@vger.kernel.org (3.12+)
Fixes: 773ca82fa1ee58dd1bf88b
Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid5.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index f8b906843926..f013d3662665 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -340,7 +340,8 @@ static void release_stripe(struct stripe_head *sh)
 	unsigned long flags;
 	bool wakeup;
 
-	if (test_and_set_bit(STRIPE_ON_RELEASE_LIST, &sh->state))
+	if (unlikely(!conf->mddev->thread) ||
+		test_and_set_bit(STRIPE_ON_RELEASE_LIST, &sh->state))
 		goto slow_path;
 	wakeup = llist_add(&sh->release_list, &conf->released_stripes);
 	if (wakeup)
-- 
cgit 


From 02e5f5c0a0f726e66e3d8506ea1691e344277969 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Thu, 14 Nov 2013 15:16:15 +1100
Subject: md: fix calculation of stacking limits on level change.

The various ->run routines of md personalities assume that the 'queue'
has been initialised by the blk_set_stacking_limits() call in
md_alloc().

However when the level is changed (by level_store()) the ->run routine
for the new level is called for an array which has already had the
stacking limits modified.  This can result in incorrect final
settings.

So call blk_set_stacking_limits() before ->run in level_store().

A specific consequence of this bug is that it causes
discard_granularity to be set incorrectly when reshaping a RAID4 to a
RAID0.

This is suitable for any -stable kernel since 3.3 in which
blk_set_stacking_limits() was introduced.

Cc: stable@vger.kernel.org (3.3+)
Reported-and-tested-by: "Baldysiak, Pawel" <pawel.baldysiak@intel.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/md.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 2445fece9263..1975c2d7aba3 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -3620,6 +3620,7 @@ level_store(struct mddev *mddev, const char *buf, size_t len)
 		mddev->in_sync = 1;
 		del_timer_sync(&mddev->safemode_timer);
 	}
+	blk_set_stacking_limits(&mddev->queue->limits);
 	pers->run(mddev);
 	set_bit(MD_CHANGE_DEVS, &mddev->flags);
 	mddev_resume(mddev);
-- 
cgit 


From ba8805b97320416e7c5bb8f55d2bd06d5c319e7d Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Thu, 14 Nov 2013 15:16:15 +1100
Subject: md/raid5.c: add proper locking to error path of raid5_start_reshape.

If raid5_start_reshape errors out, we need to reset all the fields
that were updated (not just some), and need to use the seq_counter
to ensure make_request() doesn't use an inconsitent state.

Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid5.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index f013d3662665..4bbcb7e26d12 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -6384,12 +6384,18 @@ static int raid5_start_reshape(struct mddev *mddev)
 	if (!mddev->sync_thread) {
 		mddev->recovery = 0;
 		spin_lock_irq(&conf->device_lock);
+		write_seqcount_begin(&conf->gen_lock);
 		mddev->raid_disks = conf->raid_disks = conf->previous_raid_disks;
+		mddev->new_chunk_sectors =
+			conf->chunk_sectors = conf->prev_chunk_sectors;
+		mddev->new_layout = conf->algorithm = conf->prev_algo;
 		rdev_for_each(rdev, mddev)
 			rdev->new_data_offset = rdev->data_offset;
 		smp_wmb();
+		conf->generation --;
 		conf->reshape_progress = MaxSector;
 		mddev->reshape_position = MaxSector;
+		write_seqcount_end(&conf->gen_lock);
 		spin_unlock_irq(&conf->device_lock);
 		return -EAGAIN;
 	}
-- 
cgit 


From 82e06c811163c4d853ed335d56c3378088bc89cc Mon Sep 17 00:00:00 2001
From: Shaohua Li <shli@kernel.org>
Date: Thu, 14 Nov 2013 15:16:16 +1100
Subject: wait: add wait_event_cmd()

Add a new API wait_event_cmd(). It's a variant of wait_even() with two
commands executed. One is executed before sleep, another after sleep.

Modified to match use wait.h approach based on suggestion by
Peter Zijlstra <peterz@infradead.org> - neilb

Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 include/linux/wait.h | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index 61939ba30aa0..eaa00b10abaa 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -278,6 +278,31 @@ do {									\
 	__ret;								\
 })
 
+#define __wait_event_cmd(wq, condition, cmd1, cmd2)			\
+	(void)___wait_event(wq, condition, TASK_UNINTERRUPTIBLE, 0, 0,	\
+			    cmd1; schedule(); cmd2)
+
+/**
+ * wait_event_cmd - sleep until a condition gets true
+ * @wq: the waitqueue to wait on
+ * @condition: a C expression for the event to wait for
+ * cmd1: the command will be executed before sleep
+ * cmd2: the command will be executed after sleep
+ *
+ * The process is put to sleep (TASK_UNINTERRUPTIBLE) until the
+ * @condition evaluates to true. The @condition is checked each time
+ * the waitqueue @wq is woken up.
+ *
+ * wake_up() has to be called after changing any variable that could
+ * change the result of the wait condition.
+ */
+#define wait_event_cmd(wq, condition, cmd1, cmd2)			\
+do {									\
+	if (condition)							\
+		break;							\
+	__wait_event_cmd(wq, condition, cmd1, cmd2);			\
+} while (0)
+
 #define __wait_event_interruptible(wq, condition)			\
 	___wait_event(wq, condition, TASK_INTERRUPTIBLE, 0, 0,		\
 		      schedule())
-- 
cgit 


From 566c09c53455d7c4f1130928ef8071da1a24ea65 Mon Sep 17 00:00:00 2001
From: Shaohua Li <shli@kernel.org>
Date: Thu, 14 Nov 2013 15:16:17 +1100
Subject: raid5: relieve lock contention in get_active_stripe()

get_active_stripe() is the last place we have lock contention. It has two
paths. One is stripe isn't found and new stripe is allocated, the other is
stripe is found.

The first path basically calls __find_stripe and init_stripe. It accesses
conf->generation, conf->previous_raid_disks, conf->raid_disks,
conf->prev_chunk_sectors, conf->chunk_sectors, conf->max_degraded,
conf->prev_algo, conf->algorithm, the stripe_hashtbl and inactive_list. Except
stripe_hashtbl and inactive_list, other fields are changed very rarely.

With this patch, we split inactive_list and add new hash locks. Each free
stripe belongs to a specific inactive list. Which inactive list is determined
by stripe's lock_hash. Note, even a stripe hasn't a sector assigned, it has a
lock_hash assigned. Stripe's inactive list is protected by a hash lock, which
is determined by it's lock_hash too. The lock_hash is derivied from current
stripe_hashtbl hash, which guarantees any stripe_hashtbl list will be assigned
to a specific lock_hash, so we can use new hash lock to protect stripe_hashtbl
list too. The goal of the new hash locks introduced is we can only use the new
locks in the first path of get_active_stripe(). Since we have several hash
locks, lock contention is relieved significantly.

The first path of get_active_stripe() accesses other fields, since they are
changed rarely, changing them now need take conf->device_lock and all hash
locks. For a slow path, this isn't a problem.

If we need lock device_lock and hash lock, we always lock hash lock first. The
tricky part is release_stripe and friends. We need take device_lock first.
Neil's suggestion is we put inactive stripes to a temporary list and readd it
to inactive_list after device_lock is released. In this way, we add stripes to
temporary list with device_lock hold and remove stripes from the list with hash
lock hold. So we don't allow concurrent access to the temporary list, which
means we need allocate temporary list for all participants of release_stripe.

One downside is free stripes are maintained in their inactive list, they can't
across between the lists. By default, we have total 256 stripes and 8 lists, so
each list will have 32 stripes. It's possible one list has free stripe but
other list hasn't. The chance should be rare because stripes allocation are
even distributed. And we can always allocate more stripes for cache, several
mega bytes memory isn't a big deal.

This completely removes the lock contention of the first path of
get_active_stripe(). It slows down the second code path a little bit though
because we now need takes two locks, but since the hash lock isn't contended,
the overhead should be quite small (several atomic instructions). The second
path of get_active_stripe() (basically sequential write or big request size
randwrite) still has lock contentions.

Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid5.c | 317 +++++++++++++++++++++++++++++++++++++++++------------
 drivers/md/raid5.h |  15 ++-
 2 files changed, 259 insertions(+), 73 deletions(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 4bbcb7e26d12..93090b2afab4 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -85,6 +85,42 @@ static inline struct hlist_head *stripe_hash(struct r5conf *conf, sector_t sect)
 	return &conf->stripe_hashtbl[hash];
 }
 
+static inline int stripe_hash_locks_hash(sector_t sect)
+{
+	return (sect >> STRIPE_SHIFT) & STRIPE_HASH_LOCKS_MASK;
+}
+
+static inline void lock_device_hash_lock(struct r5conf *conf, int hash)
+{
+	spin_lock_irq(conf->hash_locks + hash);
+	spin_lock(&conf->device_lock);
+}
+
+static inline void unlock_device_hash_lock(struct r5conf *conf, int hash)
+{
+	spin_unlock(&conf->device_lock);
+	spin_unlock_irq(conf->hash_locks + hash);
+}
+
+static inline void lock_all_device_hash_locks_irq(struct r5conf *conf)
+{
+	int i;
+	local_irq_disable();
+	spin_lock(conf->hash_locks);
+	for (i = 1; i < NR_STRIPE_HASH_LOCKS; i++)
+		spin_lock_nest_lock(conf->hash_locks + i, conf->hash_locks);
+	spin_lock(&conf->device_lock);
+}
+
+static inline void unlock_all_device_hash_locks_irq(struct r5conf *conf)
+{
+	int i;
+	spin_unlock(&conf->device_lock);
+	for (i = NR_STRIPE_HASH_LOCKS; i; i--)
+		spin_unlock(conf->hash_locks + i - 1);
+	local_irq_enable();
+}
+
 /* bio's attached to a stripe+device for I/O are linked together in bi_sector
  * order without overlap.  There may be several bio's per stripe+device, and
  * a bio could span several devices.
@@ -249,7 +285,8 @@ static void raid5_wakeup_stripe_thread(struct stripe_head *sh)
 	}
 }
 
-static void do_release_stripe(struct r5conf *conf, struct stripe_head *sh)
+static void do_release_stripe(struct r5conf *conf, struct stripe_head *sh,
+			      struct list_head *temp_inactive_list)
 {
 	BUG_ON(!list_empty(&sh->lru));
 	BUG_ON(atomic_read(&conf->active_stripes)==0);
@@ -278,19 +315,60 @@ static void do_release_stripe(struct r5conf *conf, struct stripe_head *sh)
 			    < IO_THRESHOLD)
 				md_wakeup_thread(conf->mddev->thread);
 		atomic_dec(&conf->active_stripes);
-		if (!test_bit(STRIPE_EXPANDING, &sh->state)) {
-			list_add_tail(&sh->lru, &conf->inactive_list);
-			wake_up(&conf->wait_for_stripe);
-			if (conf->retry_read_aligned)
-				md_wakeup_thread(conf->mddev->thread);
-		}
+		if (!test_bit(STRIPE_EXPANDING, &sh->state))
+			list_add_tail(&sh->lru, temp_inactive_list);
 	}
 }
 
-static void __release_stripe(struct r5conf *conf, struct stripe_head *sh)
+static void __release_stripe(struct r5conf *conf, struct stripe_head *sh,
+			     struct list_head *temp_inactive_list)
 {
 	if (atomic_dec_and_test(&sh->count))
-		do_release_stripe(conf, sh);
+		do_release_stripe(conf, sh, temp_inactive_list);
+}
+
+/*
+ * @hash could be NR_STRIPE_HASH_LOCKS, then we have a list of inactive_list
+ *
+ * Be careful: Only one task can add/delete stripes from temp_inactive_list at
+ * given time. Adding stripes only takes device lock, while deleting stripes
+ * only takes hash lock.
+ */
+static void release_inactive_stripe_list(struct r5conf *conf,
+					 struct list_head *temp_inactive_list,
+					 int hash)
+{
+	int size;
+	bool do_wakeup = false;
+	unsigned long flags;
+
+	if (hash == NR_STRIPE_HASH_LOCKS) {
+		size = NR_STRIPE_HASH_LOCKS;
+		hash = NR_STRIPE_HASH_LOCKS - 1;
+	} else
+		size = 1;
+	while (size) {
+		struct list_head *list = &temp_inactive_list[size - 1];
+
+		/*
+		 * We don't hold any lock here yet, get_active_stripe() might
+		 * remove stripes from the list
+		 */
+		if (!list_empty_careful(list)) {
+			spin_lock_irqsave(conf->hash_locks + hash, flags);
+			list_splice_tail_init(list, conf->inactive_list + hash);
+			do_wakeup = true;
+			spin_unlock_irqrestore(conf->hash_locks + hash, flags);
+		}
+		size--;
+		hash--;
+	}
+
+	if (do_wakeup) {
+		wake_up(&conf->wait_for_stripe);
+		if (conf->retry_read_aligned)
+			md_wakeup_thread(conf->mddev->thread);
+	}
 }
 
 static struct llist_node *llist_reverse_order(struct llist_node *head)
@@ -308,7 +386,8 @@ static struct llist_node *llist_reverse_order(struct llist_node *head)
 }
 
 /* should hold conf->device_lock already */
-static int release_stripe_list(struct r5conf *conf)
+static int release_stripe_list(struct r5conf *conf,
+			       struct list_head *temp_inactive_list)
 {
 	struct stripe_head *sh;
 	int count = 0;
@@ -317,6 +396,8 @@ static int release_stripe_list(struct r5conf *conf)
 	head = llist_del_all(&conf->released_stripes);
 	head = llist_reverse_order(head);
 	while (head) {
+		int hash;
+
 		sh = llist_entry(head, struct stripe_head, release_list);
 		head = llist_next(head);
 		/* sh could be readded after STRIPE_ON_RELEASE_LIST is cleard */
@@ -327,7 +408,8 @@ static int release_stripe_list(struct r5conf *conf)
 		 * again, the count is always > 1. This is true for
 		 * STRIPE_ON_UNPLUG_LIST bit too.
 		 */
-		__release_stripe(conf, sh);
+		hash = sh->hash_lock_index;
+		__release_stripe(conf, sh, &temp_inactive_list[hash]);
 		count++;
 	}
 
@@ -338,6 +420,8 @@ static void release_stripe(struct stripe_head *sh)
 {
 	struct r5conf *conf = sh->raid_conf;
 	unsigned long flags;
+	struct list_head list;
+	int hash;
 	bool wakeup;
 
 	if (unlikely(!conf->mddev->thread) ||
@@ -351,8 +435,11 @@ slow_path:
 	local_irq_save(flags);
 	/* we are ok here if STRIPE_ON_RELEASE_LIST is set or not */
 	if (atomic_dec_and_lock(&sh->count, &conf->device_lock)) {
-		do_release_stripe(conf, sh);
+		INIT_LIST_HEAD(&list);
+		hash = sh->hash_lock_index;
+		do_release_stripe(conf, sh, &list);
 		spin_unlock(&conf->device_lock);
+		release_inactive_stripe_list(conf, &list, hash);
 	}
 	local_irq_restore(flags);
 }
@@ -377,18 +464,19 @@ static inline void insert_hash(struct r5conf *conf, struct stripe_head *sh)
 
 
 /* find an idle stripe, make sure it is unhashed, and return it. */
-static struct stripe_head *get_free_stripe(struct r5conf *conf)
+static struct stripe_head *get_free_stripe(struct r5conf *conf, int hash)
 {
 	struct stripe_head *sh = NULL;
 	struct list_head *first;
 
-	if (list_empty(&conf->inactive_list))
+	if (list_empty(conf->inactive_list + hash))
 		goto out;
-	first = conf->inactive_list.next;
+	first = (conf->inactive_list + hash)->next;
 	sh = list_entry(first, struct stripe_head, lru);
 	list_del_init(first);
 	remove_hash(sh);
 	atomic_inc(&conf->active_stripes);
+	BUG_ON(hash != sh->hash_lock_index);
 out:
 	return sh;
 }
@@ -431,7 +519,7 @@ static void stripe_set_idx(sector_t stripe, struct r5conf *conf, int previous,
 static void init_stripe(struct stripe_head *sh, sector_t sector, int previous)
 {
 	struct r5conf *conf = sh->raid_conf;
-	int i;
+	int i, seq;
 
 	BUG_ON(atomic_read(&sh->count) != 0);
 	BUG_ON(test_bit(STRIPE_HANDLE, &sh->state));
@@ -441,7 +529,8 @@ static void init_stripe(struct stripe_head *sh, sector_t sector, int previous)
 		(unsigned long long)sh->sector);
 
 	remove_hash(sh);
-
+retry:
+	seq = read_seqcount_begin(&conf->gen_lock);
 	sh->generation = conf->generation - previous;
 	sh->disks = previous ? conf->previous_raid_disks : conf->raid_disks;
 	sh->sector = sector;
@@ -463,6 +552,8 @@ static void init_stripe(struct stripe_head *sh, sector_t sector, int previous)
 		dev->flags = 0;
 		raid5_build_block(sh, i, previous);
 	}
+	if (read_seqcount_retry(&conf->gen_lock, seq))
+		goto retry;
 	insert_hash(conf, sh);
 	sh->cpu = smp_processor_id();
 }
@@ -567,29 +658,31 @@ get_active_stripe(struct r5conf *conf, sector_t sector,
 		  int previous, int noblock, int noquiesce)
 {
 	struct stripe_head *sh;
+	int hash = stripe_hash_locks_hash(sector);
 
 	pr_debug("get_stripe, sector %llu\n", (unsigned long long)sector);
 
-	spin_lock_irq(&conf->device_lock);
+	spin_lock_irq(conf->hash_locks + hash);
 
 	do {
 		wait_event_lock_irq(conf->wait_for_stripe,
 				    conf->quiesce == 0 || noquiesce,
-				    conf->device_lock);
+				    *(conf->hash_locks + hash));
 		sh = __find_stripe(conf, sector, conf->generation - previous);
 		if (!sh) {
 			if (!conf->inactive_blocked)
-				sh = get_free_stripe(conf);
+				sh = get_free_stripe(conf, hash);
 			if (noblock && sh == NULL)
 				break;
 			if (!sh) {
 				conf->inactive_blocked = 1;
-				wait_event_lock_irq(conf->wait_for_stripe,
-						    !list_empty(&conf->inactive_list) &&
-						    (atomic_read(&conf->active_stripes)
-						     < (conf->max_nr_stripes *3/4)
-						     || !conf->inactive_blocked),
-						    conf->device_lock);
+				wait_event_lock_irq(
+					conf->wait_for_stripe,
+					!list_empty(conf->inactive_list + hash) &&
+					(atomic_read(&conf->active_stripes)
+					 < (conf->max_nr_stripes * 3 / 4)
+					 || !conf->inactive_blocked),
+					*(conf->hash_locks + hash));
 				conf->inactive_blocked = 0;
 			} else
 				init_stripe(sh, sector, previous);
@@ -600,9 +693,11 @@ get_active_stripe(struct r5conf *conf, sector_t sector,
 				    && !test_bit(STRIPE_ON_UNPLUG_LIST, &sh->state)
 				    && !test_bit(STRIPE_ON_RELEASE_LIST, &sh->state));
 			} else {
+				spin_lock(&conf->device_lock);
 				if (!test_bit(STRIPE_HANDLE, &sh->state))
 					atomic_inc(&conf->active_stripes);
 				if (list_empty(&sh->lru) &&
+				    !test_bit(STRIPE_ON_RELEASE_LIST, &sh->state) &&
 				    !test_bit(STRIPE_EXPANDING, &sh->state))
 					BUG();
 				list_del_init(&sh->lru);
@@ -610,6 +705,7 @@ get_active_stripe(struct r5conf *conf, sector_t sector,
 					sh->group->stripes_cnt--;
 					sh->group = NULL;
 				}
+				spin_unlock(&conf->device_lock);
 			}
 		}
 	} while (sh == NULL);
@@ -617,7 +713,7 @@ get_active_stripe(struct r5conf *conf, sector_t sector,
 	if (sh)
 		atomic_inc(&sh->count);
 
-	spin_unlock_irq(&conf->device_lock);
+	spin_unlock_irq(conf->hash_locks + hash);
 	return sh;
 }
 
@@ -1597,7 +1693,7 @@ static void raid_run_ops(struct stripe_head *sh, unsigned long ops_request)
 	put_cpu();
 }
 
-static int grow_one_stripe(struct r5conf *conf)
+static int grow_one_stripe(struct r5conf *conf, int hash)
 {
 	struct stripe_head *sh;
 	sh = kmem_cache_zalloc(conf->slab_cache, GFP_KERNEL);
@@ -1613,6 +1709,7 @@ static int grow_one_stripe(struct r5conf *conf)
 		kmem_cache_free(conf->slab_cache, sh);
 		return 0;
 	}
+	sh->hash_lock_index = hash;
 	/* we just created an active stripe so... */
 	atomic_set(&sh->count, 1);
 	atomic_inc(&conf->active_stripes);
@@ -1625,6 +1722,7 @@ static int grow_stripes(struct r5conf *conf, int num)
 {
 	struct kmem_cache *sc;
 	int devs = max(conf->raid_disks, conf->previous_raid_disks);
+	int hash;
 
 	if (conf->mddev->gendisk)
 		sprintf(conf->cache_name[0],
@@ -1642,9 +1740,13 @@ static int grow_stripes(struct r5conf *conf, int num)
 		return 1;
 	conf->slab_cache = sc;
 	conf->pool_size = devs;
-	while (num--)
-		if (!grow_one_stripe(conf))
+	hash = conf->max_nr_stripes % NR_STRIPE_HASH_LOCKS;
+	while (num--) {
+		if (!grow_one_stripe(conf, hash))
 			return 1;
+		conf->max_nr_stripes++;
+		hash = (hash + 1) % NR_STRIPE_HASH_LOCKS;
+	}
 	return 0;
 }
 
@@ -1702,6 +1804,7 @@ static int resize_stripes(struct r5conf *conf, int newsize)
 	int err;
 	struct kmem_cache *sc;
 	int i;
+	int hash, cnt;
 
 	if (newsize <= conf->pool_size)
 		return 0; /* never bother to shrink */
@@ -1741,19 +1844,29 @@ static int resize_stripes(struct r5conf *conf, int newsize)
 	 * OK, we have enough stripes, start collecting inactive
 	 * stripes and copying them over
 	 */
+	hash = 0;
+	cnt = 0;
 	list_for_each_entry(nsh, &newstripes, lru) {
-		spin_lock_irq(&conf->device_lock);
-		wait_event_lock_irq(conf->wait_for_stripe,
-				    !list_empty(&conf->inactive_list),
-				    conf->device_lock);
-		osh = get_free_stripe(conf);
-		spin_unlock_irq(&conf->device_lock);
+		lock_device_hash_lock(conf, hash);
+		wait_event_cmd(conf->wait_for_stripe,
+				    !list_empty(conf->inactive_list + hash),
+				    unlock_device_hash_lock(conf, hash),
+				    lock_device_hash_lock(conf, hash));
+		osh = get_free_stripe(conf, hash);
+		unlock_device_hash_lock(conf, hash);
 		atomic_set(&nsh->count, 1);
 		for(i=0; i<conf->pool_size; i++)
 			nsh->dev[i].page = osh->dev[i].page;
 		for( ; i<newsize; i++)
 			nsh->dev[i].page = NULL;
+		nsh->hash_lock_index = hash;
 		kmem_cache_free(conf->slab_cache, osh);
+		cnt++;
+		if (cnt >= conf->max_nr_stripes / NR_STRIPE_HASH_LOCKS +
+		    !!((conf->max_nr_stripes % NR_STRIPE_HASH_LOCKS) > hash)) {
+			hash++;
+			cnt = 0;
+		}
 	}
 	kmem_cache_destroy(conf->slab_cache);
 
@@ -1812,13 +1925,13 @@ static int resize_stripes(struct r5conf *conf, int newsize)
 	return err;
 }
 
-static int drop_one_stripe(struct r5conf *conf)
+static int drop_one_stripe(struct r5conf *conf, int hash)
 {
 	struct stripe_head *sh;
 
-	spin_lock_irq(&conf->device_lock);
-	sh = get_free_stripe(conf);
-	spin_unlock_irq(&conf->device_lock);
+	spin_lock_irq(conf->hash_locks + hash);
+	sh = get_free_stripe(conf, hash);
+	spin_unlock_irq(conf->hash_locks + hash);
 	if (!sh)
 		return 0;
 	BUG_ON(atomic_read(&sh->count));
@@ -1830,8 +1943,10 @@ static int drop_one_stripe(struct r5conf *conf)
 
 static void shrink_stripes(struct r5conf *conf)
 {
-	while (drop_one_stripe(conf))
-		;
+	int hash;
+	for (hash = 0; hash < NR_STRIPE_HASH_LOCKS; hash++)
+		while (drop_one_stripe(conf, hash))
+			;
 
 	if (conf->slab_cache)
 		kmem_cache_destroy(conf->slab_cache);
@@ -3915,7 +4030,8 @@ static void raid5_activate_delayed(struct r5conf *conf)
 	}
 }
 
-static void activate_bit_delay(struct r5conf *conf)
+static void activate_bit_delay(struct r5conf *conf,
+	struct list_head *temp_inactive_list)
 {
 	/* device_lock is held */
 	struct list_head head;
@@ -3923,9 +4039,11 @@ static void activate_bit_delay(struct r5conf *conf)
 	list_del_init(&conf->bitmap_list);
 	while (!list_empty(&head)) {
 		struct stripe_head *sh = list_entry(head.next, struct stripe_head, lru);
+		int hash;
 		list_del_init(&sh->lru);
 		atomic_inc(&sh->count);
-		__release_stripe(conf, sh);
+		hash = sh->hash_lock_index;
+		__release_stripe(conf, sh, &temp_inactive_list[hash]);
 	}
 }
 
@@ -3941,7 +4059,7 @@ int md_raid5_congested(struct mddev *mddev, int bits)
 		return 1;
 	if (conf->quiesce)
 		return 1;
-	if (list_empty_careful(&conf->inactive_list))
+	if (atomic_read(&conf->active_stripes) == conf->max_nr_stripes)
 		return 1;
 
 	return 0;
@@ -4271,6 +4389,7 @@ static struct stripe_head *__get_priority_stripe(struct r5conf *conf, int group)
 struct raid5_plug_cb {
 	struct blk_plug_cb	cb;
 	struct list_head	list;
+	struct list_head	temp_inactive_list[NR_STRIPE_HASH_LOCKS];
 };
 
 static void raid5_unplug(struct blk_plug_cb *blk_cb, bool from_schedule)
@@ -4281,6 +4400,7 @@ static void raid5_unplug(struct blk_plug_cb *blk_cb, bool from_schedule)
 	struct mddev *mddev = cb->cb.data;
 	struct r5conf *conf = mddev->private;
 	int cnt = 0;
+	int hash;
 
 	if (cb->list.next && !list_empty(&cb->list)) {
 		spin_lock_irq(&conf->device_lock);
@@ -4298,11 +4418,14 @@ static void raid5_unplug(struct blk_plug_cb *blk_cb, bool from_schedule)
 			 * STRIPE_ON_RELEASE_LIST could be set here. In that
 			 * case, the count is always > 1 here
 			 */
-			__release_stripe(conf, sh);
+			hash = sh->hash_lock_index;
+			__release_stripe(conf, sh, &cb->temp_inactive_list[hash]);
 			cnt++;
 		}
 		spin_unlock_irq(&conf->device_lock);
 	}
+	release_inactive_stripe_list(conf, cb->temp_inactive_list,
+				     NR_STRIPE_HASH_LOCKS);
 	if (mddev->queue)
 		trace_block_unplug(mddev->queue, cnt, !from_schedule);
 	kfree(cb);
@@ -4323,8 +4446,12 @@ static void release_stripe_plug(struct mddev *mddev,
 
 	cb = container_of(blk_cb, struct raid5_plug_cb, cb);
 
-	if (cb->list.next == NULL)
+	if (cb->list.next == NULL) {
+		int i;
 		INIT_LIST_HEAD(&cb->list);
+		for (i = 0; i < NR_STRIPE_HASH_LOCKS; i++)
+			INIT_LIST_HEAD(cb->temp_inactive_list + i);
+	}
 
 	if (!test_and_set_bit(STRIPE_ON_UNPLUG_LIST, &sh->state))
 		list_add_tail(&sh->lru, &cb->list);
@@ -4969,27 +5096,45 @@ static int  retry_aligned_read(struct r5conf *conf, struct bio *raid_bio)
 }
 
 static int handle_active_stripes(struct r5conf *conf, int group,
-				 struct r5worker *worker)
+				 struct r5worker *worker,
+				 struct list_head *temp_inactive_list)
 {
 	struct stripe_head *batch[MAX_STRIPE_BATCH], *sh;
-	int i, batch_size = 0;
+	int i, batch_size = 0, hash;
+	bool release_inactive = false;
 
 	while (batch_size < MAX_STRIPE_BATCH &&
 			(sh = __get_priority_stripe(conf, group)) != NULL)
 		batch[batch_size++] = sh;
 
-	if (batch_size == 0)
-		return batch_size;
+	if (batch_size == 0) {
+		for (i = 0; i < NR_STRIPE_HASH_LOCKS; i++)
+			if (!list_empty(temp_inactive_list + i))
+				break;
+		if (i == NR_STRIPE_HASH_LOCKS)
+			return batch_size;
+		release_inactive = true;
+	}
 	spin_unlock_irq(&conf->device_lock);
 
+	release_inactive_stripe_list(conf, temp_inactive_list,
+				     NR_STRIPE_HASH_LOCKS);
+
+	if (release_inactive) {
+		spin_lock_irq(&conf->device_lock);
+		return 0;
+	}
+
 	for (i = 0; i < batch_size; i++)
 		handle_stripe(batch[i]);
 
 	cond_resched();
 
 	spin_lock_irq(&conf->device_lock);
-	for (i = 0; i < batch_size; i++)
-		__release_stripe(conf, batch[i]);
+	for (i = 0; i < batch_size; i++) {
+		hash = batch[i]->hash_lock_index;
+		__release_stripe(conf, batch[i], &temp_inactive_list[hash]);
+	}
 	return batch_size;
 }
 
@@ -5010,9 +5155,10 @@ static void raid5_do_work(struct work_struct *work)
 	while (1) {
 		int batch_size, released;
 
-		released = release_stripe_list(conf);
+		released = release_stripe_list(conf, worker->temp_inactive_list);
 
-		batch_size = handle_active_stripes(conf, group_id, worker);
+		batch_size = handle_active_stripes(conf, group_id, worker,
+						   worker->temp_inactive_list);
 		worker->working = false;
 		if (!batch_size && !released)
 			break;
@@ -5051,7 +5197,7 @@ static void raid5d(struct md_thread *thread)
 		struct bio *bio;
 		int batch_size, released;
 
-		released = release_stripe_list(conf);
+		released = release_stripe_list(conf, conf->temp_inactive_list);
 
 		if (
 		    !list_empty(&conf->bitmap_list)) {
@@ -5061,7 +5207,7 @@ static void raid5d(struct md_thread *thread)
 			bitmap_unplug(mddev->bitmap);
 			spin_lock_irq(&conf->device_lock);
 			conf->seq_write = conf->seq_flush;
-			activate_bit_delay(conf);
+			activate_bit_delay(conf, conf->temp_inactive_list);
 		}
 		raid5_activate_delayed(conf);
 
@@ -5075,7 +5221,8 @@ static void raid5d(struct md_thread *thread)
 			handled++;
 		}
 
-		batch_size = handle_active_stripes(conf, ANY_GROUP, NULL);
+		batch_size = handle_active_stripes(conf, ANY_GROUP, NULL,
+						   conf->temp_inactive_list);
 		if (!batch_size && !released)
 			break;
 		handled += batch_size;
@@ -5111,22 +5258,29 @@ raid5_set_cache_size(struct mddev *mddev, int size)
 {
 	struct r5conf *conf = mddev->private;
 	int err;
+	int hash;
 
 	if (size <= 16 || size > 32768)
 		return -EINVAL;
+	hash = (conf->max_nr_stripes - 1) % NR_STRIPE_HASH_LOCKS;
 	while (size < conf->max_nr_stripes) {
-		if (drop_one_stripe(conf))
+		if (drop_one_stripe(conf, hash))
 			conf->max_nr_stripes--;
 		else
 			break;
+		hash--;
+		if (hash < 0)
+			hash = NR_STRIPE_HASH_LOCKS - 1;
 	}
 	err = md_allow_write(mddev);
 	if (err)
 		return err;
+	hash = conf->max_nr_stripes % NR_STRIPE_HASH_LOCKS;
 	while (size > conf->max_nr_stripes) {
-		if (grow_one_stripe(conf))
+		if (grow_one_stripe(conf, hash))
 			conf->max_nr_stripes++;
 		else break;
+		hash = (hash + 1) % NR_STRIPE_HASH_LOCKS;
 	}
 	return 0;
 }
@@ -5277,7 +5431,7 @@ static struct attribute_group raid5_attrs_group = {
 
 static int alloc_thread_groups(struct r5conf *conf, int cnt)
 {
-	int i, j;
+	int i, j, k;
 	ssize_t size;
 	struct r5worker *workers;
 
@@ -5307,8 +5461,12 @@ static int alloc_thread_groups(struct r5conf *conf, int cnt)
 		group->workers = workers + i * cnt;
 
 		for (j = 0; j < cnt; j++) {
-			group->workers[j].group = group;
-			INIT_WORK(&group->workers[j].work, raid5_do_work);
+			struct r5worker *worker = group->workers + j;
+			worker->group = group;
+			INIT_WORK(&worker->work, raid5_do_work);
+
+			for (k = 0; k < NR_STRIPE_HASH_LOCKS; k++)
+				INIT_LIST_HEAD(worker->temp_inactive_list + k);
 		}
 	}
 
@@ -5459,6 +5617,7 @@ static struct r5conf *setup_conf(struct mddev *mddev)
 	struct md_rdev *rdev;
 	struct disk_info *disk;
 	char pers_name[6];
+	int i;
 
 	if (mddev->new_level != 5
 	    && mddev->new_level != 4
@@ -5503,7 +5662,6 @@ static struct r5conf *setup_conf(struct mddev *mddev)
 	INIT_LIST_HEAD(&conf->hold_list);
 	INIT_LIST_HEAD(&conf->delayed_list);
 	INIT_LIST_HEAD(&conf->bitmap_list);
-	INIT_LIST_HEAD(&conf->inactive_list);
 	init_llist_head(&conf->released_stripes);
 	atomic_set(&conf->active_stripes, 0);
 	atomic_set(&conf->preread_active_stripes, 0);
@@ -5529,6 +5687,21 @@ static struct r5conf *setup_conf(struct mddev *mddev)
 	if ((conf->stripe_hashtbl = kzalloc(PAGE_SIZE, GFP_KERNEL)) == NULL)
 		goto abort;
 
+	/* We init hash_locks[0] separately to that it can be used
+	 * as the reference lock in the spin_lock_nest_lock() call
+	 * in lock_all_device_hash_locks_irq in order to convince
+	 * lockdep that we know what we are doing.
+	 */
+	spin_lock_init(conf->hash_locks);
+	for (i = 1; i < NR_STRIPE_HASH_LOCKS; i++)
+		spin_lock_init(conf->hash_locks + i);
+
+	for (i = 0; i < NR_STRIPE_HASH_LOCKS; i++)
+		INIT_LIST_HEAD(conf->inactive_list + i);
+
+	for (i = 0; i < NR_STRIPE_HASH_LOCKS; i++)
+		INIT_LIST_HEAD(conf->temp_inactive_list + i);
+
 	conf->level = mddev->new_level;
 	if (raid5_alloc_percpu(conf) != 0)
 		goto abort;
@@ -5569,7 +5742,6 @@ static struct r5conf *setup_conf(struct mddev *mddev)
 	else
 		conf->max_degraded = 1;
 	conf->algorithm = mddev->new_layout;
-	conf->max_nr_stripes = NR_STRIPES;
 	conf->reshape_progress = mddev->reshape_position;
 	if (conf->reshape_progress != MaxSector) {
 		conf->prev_chunk_sectors = mddev->chunk_sectors;
@@ -5578,7 +5750,7 @@ static struct r5conf *setup_conf(struct mddev *mddev)
 
 	memory = conf->max_nr_stripes * (sizeof(struct stripe_head) +
 		 max_disks * ((sizeof(struct bio) + PAGE_SIZE))) / 1024;
-	if (grow_stripes(conf, conf->max_nr_stripes)) {
+	if (grow_stripes(conf, NR_STRIPES)) {
 		printk(KERN_ERR
 		       "md/raid:%s: couldn't allocate %dkB for buffers\n",
 		       mdname(mddev), memory);
@@ -6483,27 +6655,28 @@ static void raid5_quiesce(struct mddev *mddev, int state)
 		break;
 
 	case 1: /* stop all writes */
-		spin_lock_irq(&conf->device_lock);
+		lock_all_device_hash_locks_irq(conf);
 		/* '2' tells resync/reshape to pause so that all
 		 * active stripes can drain
 		 */
 		conf->quiesce = 2;
-		wait_event_lock_irq(conf->wait_for_stripe,
+		wait_event_cmd(conf->wait_for_stripe,
 				    atomic_read(&conf->active_stripes) == 0 &&
 				    atomic_read(&conf->active_aligned_reads) == 0,
-				    conf->device_lock);
+				    unlock_all_device_hash_locks_irq(conf),
+				    lock_all_device_hash_locks_irq(conf));
 		conf->quiesce = 1;
-		spin_unlock_irq(&conf->device_lock);
+		unlock_all_device_hash_locks_irq(conf);
 		/* allow reshape to continue */
 		wake_up(&conf->wait_for_overlap);
 		break;
 
 	case 0: /* re-enable writes */
-		spin_lock_irq(&conf->device_lock);
+		lock_all_device_hash_locks_irq(conf);
 		conf->quiesce = 0;
 		wake_up(&conf->wait_for_stripe);
 		wake_up(&conf->wait_for_overlap);
-		spin_unlock_irq(&conf->device_lock);
+		unlock_all_device_hash_locks_irq(conf);
 		break;
 	}
 }
diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h
index 2113ffa82c7a..a9e443a1116f 100644
--- a/drivers/md/raid5.h
+++ b/drivers/md/raid5.h
@@ -205,6 +205,7 @@ struct stripe_head {
 	short			pd_idx;		/* parity disk index */
 	short			qd_idx;		/* 'Q' disk index for raid6 */
 	short			ddf_layout;/* use DDF ordering to calculate Q */
+	short			hash_lock_index;
 	unsigned long		state;		/* state flags */
 	atomic_t		count;	      /* nr of active thread/requests */
 	int			bm_seq;	/* sequence number for bitmap flushes */
@@ -367,9 +368,18 @@ struct disk_info {
 	struct md_rdev	*rdev, *replacement;
 };
 
+/* NOTE NR_STRIPE_HASH_LOCKS must remain below 64.
+ * This is because we sometimes take all the spinlocks
+ * and creating that much locking depth can cause
+ * problems.
+ */
+#define NR_STRIPE_HASH_LOCKS 8
+#define STRIPE_HASH_LOCKS_MASK (NR_STRIPE_HASH_LOCKS - 1)
+
 struct r5worker {
 	struct work_struct work;
 	struct r5worker_group *group;
+	struct list_head temp_inactive_list[NR_STRIPE_HASH_LOCKS];
 	bool working;
 };
 
@@ -382,6 +392,8 @@ struct r5worker_group {
 
 struct r5conf {
 	struct hlist_head	*stripe_hashtbl;
+	/* only protect corresponding hash list and inactive_list */
+	spinlock_t		hash_locks[NR_STRIPE_HASH_LOCKS];
 	struct mddev		*mddev;
 	int			chunk_sectors;
 	int			level, algorithm;
@@ -462,7 +474,7 @@ struct r5conf {
 	 * Free stripes pool
 	 */
 	atomic_t		active_stripes;
-	struct list_head	inactive_list;
+	struct list_head	inactive_list[NR_STRIPE_HASH_LOCKS];
 	struct llist_head	released_stripes;
 	wait_queue_head_t	wait_for_stripe;
 	wait_queue_head_t	wait_for_overlap;
@@ -477,6 +489,7 @@ struct r5conf {
 	 * the new thread here until we fully activate the array.
 	 */
 	struct md_thread	*thread;
+	struct list_head	temp_inactive_list[NR_STRIPE_HASH_LOCKS];
 	struct r5worker_group	*worker_groups;
 	int			group_cnt;
 	int			worker_cnt_per_group;
-- 
cgit 


From 0bae1d61c7512580f1622a880d82164c9534fce3 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Mon, 11 Nov 2013 12:40:27 +1000
Subject: drm/nvc8/mc: msi rearm is via the nvc0 method

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
 drivers/gpu/drm/nouveau/core/engine/device/nvc0.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c
index 606598f226fc..8d06eef2b9ee 100644
--- a/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/device/nvc0.c
@@ -256,7 +256,7 @@ nvc0_identify(struct nouveau_device *device)
 		device->oclass[NVDEV_SUBDEV_THERM  ] = &nva3_therm_oclass;
 		device->oclass[NVDEV_SUBDEV_MXM    ] = &nv50_mxm_oclass;
 		device->oclass[NVDEV_SUBDEV_DEVINIT] = &nvc0_devinit_oclass;
-		device->oclass[NVDEV_SUBDEV_MC     ] =  nvc3_mc_oclass;
+		device->oclass[NVDEV_SUBDEV_MC     ] =  nvc0_mc_oclass;
 		device->oclass[NVDEV_SUBDEV_BUS    ] =  nvc0_bus_oclass;
 		device->oclass[NVDEV_SUBDEV_TIMER  ] = &nv04_timer_oclass;
 		device->oclass[NVDEV_SUBDEV_FB     ] =  nvc0_fb_oclass;
-- 
cgit 


From 5d216f6013d54a6085d5e499407aec6d67e79990 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Wed, 13 Nov 2013 10:23:46 +1000
Subject: drm/nouveau: allow nouveau_fence_ref() to be a noop

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
 drivers/gpu/drm/nouveau/nouveau_bo.c    | 13 +++----------
 drivers/gpu/drm/nouveau/nouveau_fence.c |  3 ++-
 drivers/gpu/drm/nouveau/nouveau_gem.c   |  6 ++----
 3 files changed, 7 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 949ab0cbc4ab..129aceed407d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -98,12 +98,7 @@ nv10_bo_put_tile_region(struct drm_device *dev, struct nouveau_drm_tile *tile,
 
 	if (tile) {
 		spin_lock(&drm->tile.lock);
-		if (fence) {
-			/* Mark it as pending. */
-			tile->fence = fence;
-			nouveau_fence_ref(fence);
-		}
-
+		tile->fence = nouveau_fence_ref(fence);
 		tile->used = false;
 		spin_unlock(&drm->tile.lock);
 	}
@@ -1462,14 +1457,12 @@ nouveau_ttm_tt_unpopulate(struct ttm_tt *ttm)
 void
 nouveau_bo_fence(struct nouveau_bo *nvbo, struct nouveau_fence *fence)
 {
+	struct nouveau_fence *new_fence = nouveau_fence_ref(fence);
 	struct nouveau_fence *old_fence = NULL;
 
-	if (likely(fence))
-		nouveau_fence_ref(fence);
-
 	spin_lock(&nvbo->bo.bdev->fence_lock);
 	old_fence = nvbo->bo.sync_obj;
-	nvbo->bo.sync_obj = fence;
+	nvbo->bo.sync_obj = new_fence;
 	spin_unlock(&nvbo->bo.bdev->fence_lock);
 
 	nouveau_fence_unref(&old_fence);
diff --git a/drivers/gpu/drm/nouveau/nouveau_fence.c b/drivers/gpu/drm/nouveau/nouveau_fence.c
index 34b82711e7c8..40cf52e6d6d2 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fence.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fence.c
@@ -306,7 +306,8 @@ nouveau_fence_unref(struct nouveau_fence **pfence)
 struct nouveau_fence *
 nouveau_fence_ref(struct nouveau_fence *fence)
 {
-	kref_get(&fence->kref);
+	if (fence)
+		kref_get(&fence->kref);
 	return fence;
 }
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c
index 418a6177a653..c60f65a815d3 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
@@ -106,8 +106,7 @@ nouveau_gem_object_unmap(struct nouveau_bo *nvbo, struct nouveau_vma *vma)
 
 	if (mapped) {
 		spin_lock(&nvbo->bo.bdev->fence_lock);
-		if (nvbo->bo.sync_obj)
-			fence = nouveau_fence_ref(nvbo->bo.sync_obj);
+		fence = nouveau_fence_ref(nvbo->bo.sync_obj);
 		spin_unlock(&nvbo->bo.bdev->fence_lock);
 	}
 
@@ -438,8 +437,7 @@ validate_sync(struct nouveau_channel *chan, struct nouveau_bo *nvbo)
 	int ret = 0;
 
 	spin_lock(&nvbo->bo.bdev->fence_lock);
-	if (nvbo->bo.sync_obj)
-		fence = nouveau_fence_ref(nvbo->bo.sync_obj);
+	fence = nouveau_fence_ref(nvbo->bo.sync_obj);
 	spin_unlock(&nvbo->bo.bdev->fence_lock);
 
 	if (fence) {
-- 
cgit 


From 9360bd1112d8874d21942e2ae74f5416b00a8db6 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Wed, 13 Nov 2013 15:18:32 +1000
Subject: drm/nouveau: when bailing out of a pushbuf ioctl, do not remove
 previous fence

Cc: stable@vger.kernel.org
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
 drivers/gpu/drm/nouveau/nouveau_gem.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c
index c60f65a815d3..78a27f8ad7d9 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
@@ -308,7 +308,8 @@ validate_fini_list(struct list_head *list, struct nouveau_fence *fence,
 	list_for_each_safe(entry, tmp, list) {
 		nvbo = list_entry(entry, struct nouveau_bo, entry);
 
-		nouveau_bo_fence(nvbo, fence);
+		if (likely(fence))
+			nouveau_bo_fence(nvbo, fence);
 
 		if (unlikely(nvbo->validate_mapped)) {
 			ttm_bo_kunmap(&nvbo->kmap);
-- 
cgit 


From 07ad6ca0d391758ae3bffa95554abbae6c84e641 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Wed, 13 Nov 2013 10:00:32 +1000
Subject: drm/nouveau: there is no need to reserve/fence the new fb when
 flipping

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
 drivers/gpu/drm/nouveau/nouveau_display.c | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index 44642d9094e6..547c42b4a35d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -26,7 +26,6 @@
 
 #include <drm/drmP.h>
 #include <drm/drm_crtc_helper.h>
-#include <drm/ttm/ttm_execbuf_util.h>
 
 #include "nouveau_fbcon.h"
 #include "dispnv04/hw.h"
@@ -594,12 +593,6 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 	struct nouveau_page_flip_state *s;
 	struct nouveau_channel *chan = NULL;
 	struct nouveau_fence *fence;
-	struct ttm_validate_buffer resv[2] = {
-		{ .bo = &old_bo->bo },
-		{ .bo = &new_bo->bo },
-	};
-	struct ww_acquire_ctx ticket;
-	LIST_HEAD(res);
 	int ret;
 
 	if (!drm->channel)
@@ -622,13 +615,10 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 		ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM);
 		if (ret)
 			goto fail_free;
-
-		list_add(&resv[1].head, &res);
 	}
-	list_add(&resv[0].head, &res);
 
 	mutex_lock(&chan->cli->mutex);
-	ret = ttm_eu_reserve_buffers(&ticket, &res);
+	ret = ttm_bo_reserve(&old_bo->bo, true, false, false, NULL);
 	if (ret)
 		goto fail_unpin;
 
@@ -656,14 +646,15 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 	/* Update the crtc struct and cleanup */
 	crtc->fb = fb;
 
-	ttm_eu_fence_buffer_objects(&ticket, &res, fence);
+	nouveau_bo_fence(old_bo, fence);
+	ttm_bo_unreserve(&old_bo->bo);
 	if (old_bo != new_bo)
 		nouveau_bo_unpin(old_bo);
 	nouveau_fence_unref(&fence);
 	return 0;
 
 fail_unreserve:
-	ttm_eu_backoff_reservation(&ticket, &res);
+	ttm_bo_unreserve(&old_bo->bo);
 fail_unpin:
 	mutex_unlock(&chan->cli->mutex);
 	if (old_bo != new_bo)
-- 
cgit 


From eae389f9b1e08a6e6e8da68937706d89517b1796 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Wed, 13 Nov 2013 10:17:17 +1000
Subject: drm/nouveau: always queue flips relative to kernel channel activity

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
 drivers/gpu/drm/nouveau/nouveau_display.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index 547c42b4a35d..4b124a67fc04 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -591,7 +591,7 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 	struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->fb)->nvbo;
 	struct nouveau_bo *new_bo = nouveau_framebuffer(fb)->nvbo;
 	struct nouveau_page_flip_state *s;
-	struct nouveau_channel *chan = NULL;
+	struct nouveau_channel *chan = drm->channel;
 	struct nouveau_fence *fence;
 	int ret;
 
@@ -602,14 +602,13 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 	if (!s)
 		return -ENOMEM;
 
-	/* Choose the channel the flip will be handled in */
-	spin_lock(&old_bo->bo.bdev->fence_lock);
-	fence = new_bo->bo.sync_obj;
-	if (fence)
-		chan = fence->channel;
-	if (!chan)
-		chan = drm->channel;
-	spin_unlock(&old_bo->bo.bdev->fence_lock);
+	/* synchronise rendering channel with the kernel's channel */
+	spin_lock(&new_bo->bo.bdev->fence_lock);
+	fence = nouveau_fence_ref(new_bo->bo.sync_obj);
+	spin_unlock(&new_bo->bo.bdev->fence_lock);
+	ret = nouveau_fence_sync(fence, chan);
+	if (ret)
+		return ret;
 
 	if (new_bo != old_bo) {
 		ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM);
-- 
cgit 


From 69a6146d1e06b50d070ea40064fccd910371b3b0 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Wed, 13 Nov 2013 10:58:51 +1000
Subject: drm/nv10-: we no longer need to create nvsw object on user channels

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
 drivers/gpu/drm/nouveau/nouveau_abi16.c |  2 +-
 drivers/gpu/drm/nouveau/nouveau_chan.c  | 11 +++--------
 drivers/gpu/drm/nouveau/nouveau_drm.c   | 27 +++++++++++++++++++++++++++
 drivers/gpu/drm/nouveau/nouveau_drm.h   |  1 +
 4 files changed, 32 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_abi16.c b/drivers/gpu/drm/nouveau/nouveau_abi16.c
index 3621e7f23477..6828d81ed7b9 100644
--- a/drivers/gpu/drm/nouveau/nouveau_abi16.c
+++ b/drivers/gpu/drm/nouveau/nouveau_abi16.c
@@ -298,7 +298,7 @@ nouveau_abi16_ioctl_channel_alloc(ABI16_IOCTL_ARGS)
 	else
 		init->pushbuf_domains = NOUVEAU_GEM_DOMAIN_GART;
 
-	if (device->card_type < NV_C0) {
+	if (device->card_type < NV_10) {
 		init->subchan[0].handle = 0x00000000;
 		init->subchan[0].grclass = 0x0000;
 		init->subchan[1].handle = NvSw;
diff --git a/drivers/gpu/drm/nouveau/nouveau_chan.c b/drivers/gpu/drm/nouveau/nouveau_chan.c
index e84f4c32331b..cc5152be2cf1 100644
--- a/drivers/gpu/drm/nouveau/nouveau_chan.c
+++ b/drivers/gpu/drm/nouveau/nouveau_chan.c
@@ -346,22 +346,17 @@ nouveau_channel_init(struct nouveau_channel *chan, u32 vram, u32 gart)
 	for (i = 0; i < NOUVEAU_DMA_SKIPS; i++)
 		OUT_RING(chan, 0x00000000);
 
-	/* allocate software object class (used for fences on <= nv05, and
-	 * to signal flip completion), bind it to a subchannel.
-	 */
-	if ((device->card_type < NV_E0) || gart /* nve0: want_nvsw */) {
+	/* allocate software object class (used for fences on <= nv05) */
+	if (device->card_type < NV_10) {
 		ret = nouveau_object_new(nv_object(client), chan->handle,
-					 NvSw, nouveau_abi16_swclass(chan->drm),
-					 NULL, 0, &object);
+					 NvSw, 0x006e, NULL, 0, &object);
 		if (ret)
 			return ret;
 
 		swch = (void *)object->parent;
 		swch->flip = nouveau_flip_complete;
 		swch->flip_data = chan;
-	}
 
-	if (device->card_type < NV_C0) {
 		ret = RING_SPACE(chan, 2);
 		if (ret)
 			return ret;
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index 2418b0de589e..7a3759f1c41a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -37,6 +37,7 @@
 #include <engine/device.h>
 #include <engine/disp.h>
 #include <engine/fifo.h>
+#include <engine/software.h>
 
 #include <subdev/vm.h>
 
@@ -191,6 +192,32 @@ nouveau_accel_init(struct nouveau_drm *drm)
 		return;
 	}
 
+	ret = nouveau_object_new(nv_object(drm), NVDRM_CHAN, NVDRM_NVSW,
+				 nouveau_abi16_swclass(drm), NULL, 0, &object);
+	if (ret == 0) {
+		struct nouveau_software_chan *swch = (void *)object->parent;
+		ret = RING_SPACE(drm->channel, 2);
+		if (ret == 0) {
+			if (device->card_type < NV_C0) {
+				BEGIN_NV04(drm->channel, NvSubSw, 0, 1);
+				OUT_RING  (drm->channel, NVDRM_NVSW);
+			} else
+			if (device->card_type < NV_E0) {
+				BEGIN_NVC0(drm->channel, FermiSw, 0, 1);
+				OUT_RING  (drm->channel, 0x001f0000);
+			}
+		}
+		swch = (void *)object->parent;
+		swch->flip = nouveau_flip_complete;
+		swch->flip_data = drm->channel;
+	}
+
+	if (ret) {
+		NV_ERROR(drm, "failed to allocate software object, %d\n", ret);
+		nouveau_accel_fini(drm);
+		return;
+	}
+
 	if (device->card_type < NV_C0) {
 		ret = nouveau_gpuobj_new(drm->device, NULL, 32, 0, 0,
 					&drm->notify);
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.h b/drivers/gpu/drm/nouveau/nouveau_drm.h
index 71ed2dadae61..4b0fb6c66be9 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.h
@@ -56,6 +56,7 @@ enum nouveau_drm_handle {
 	NVDRM_CONTROL = 0xdddddddc,
 	NVDRM_PUSH    = 0xbbbb0000, /* |= client chid */
 	NVDRM_CHAN    = 0xcccc0000, /* |= client chid */
+	NVDRM_NVSW    = 0x55550000,
 };
 
 struct nouveau_cli {
-- 
cgit 


From 1e303c03af1e631de37ec77cc2513210910a812c Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Wed, 13 Nov 2013 10:49:46 +1000
Subject: drm/nvc0-: remove nasty fifo swmthd hack for flip completion method

Not required anymore as flips are always done on the kernel's channel,
which means we can use a proper software object class instead.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
 drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c |  7 -------
 drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c |  7 -------
 drivers/gpu/drm/nouveau/nouveau_display.c       | 14 +++++---------
 drivers/gpu/drm/nouveau/nouveau_dma.h           |  7 ++++---
 4 files changed, 9 insertions(+), 26 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
index e21453a94971..9ac94d4e5646 100644
--- a/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/fifo/nvc0.c
@@ -494,13 +494,6 @@ nvc0_fifo_isr_subfifo_intr(struct nvc0_fifo_priv *priv, int unit)
 	u32 mthd = (addr & 0x00003ffc);
 	u32 show = stat;
 
-	if (stat & 0x00200000) {
-		if (mthd == 0x0054) {
-			if (!nvc0_fifo_swmthd(priv, chid, 0x0500, 0x00000000))
-				show &= ~0x00200000;
-		}
-	}
-
 	if (stat & 0x00800000) {
 		if (!nvc0_fifo_swmthd(priv, chid, mthd, data))
 			show &= ~0x00800000;
diff --git a/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c b/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c
index fcd449e5aba7..04f412922d2d 100644
--- a/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/fifo/nve0.c
@@ -481,13 +481,6 @@ nve0_fifo_isr_subfifo_intr(struct nve0_fifo_priv *priv, int unit)
 	u32 mthd = (addr & 0x00003ffc);
 	u32 show = stat;
 
-	if (stat & 0x00200000) {
-		if (mthd == 0x0054) {
-			if (!nve0_fifo_swmthd(priv, chid, 0x0500, 0x00000000))
-				show &= ~0x00200000;
-		}
-	}
-
 	if (stat & 0x00800000) {
 		if (!nve0_fifo_swmthd(priv, chid, mthd, data))
 			show &= ~0x00800000;
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index 4b124a67fc04..17422bc19529 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -554,19 +554,15 @@ nouveau_page_flip_emit(struct nouveau_channel *chan,
 		goto fail;
 
 	/* Emit the pageflip */
-	ret = RING_SPACE(chan, 3);
+	ret = RING_SPACE(chan, 2);
 	if (ret)
 		goto fail;
 
-	if (nv_device(drm->device)->card_type < NV_C0) {
+	if (nv_device(drm->device)->card_type < NV_C0)
 		BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
-		OUT_RING  (chan, 0x00000000);
-		OUT_RING  (chan, 0x00000000);
-	} else {
-		BEGIN_NVC0(chan, 0, NV10_SUBCHAN_REF_CNT, 1);
-		OUT_RING  (chan, 0);
-		BEGIN_IMC0(chan, 0, NVSW_SUBCHAN_PAGE_FLIP, 0x0000);
-	}
+	else
+		BEGIN_NVC0(chan, FermiSw, NV_SW_PAGE_FLIP, 1);
+	OUT_RING  (chan, 0x00000000);
 	FIRE_RING (chan);
 
 	ret = nouveau_fence_new(chan, false, pfence);
diff --git a/drivers/gpu/drm/nouveau/nouveau_dma.h b/drivers/gpu/drm/nouveau/nouveau_dma.h
index 690d5930ce32..984004d66a6d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_dma.h
+++ b/drivers/gpu/drm/nouveau/nouveau_dma.h
@@ -51,9 +51,11 @@ enum {
 	NvSubCtxSurf2D  = 0,
 	NvSubSw		= 1,
 	NvSubImageBlit  = 2,
-	NvSub2D		= 3,
 	NvSubGdiRect    = 3,
-	NvSubCopy	= 4,
+
+	NvSub2D		= 3, /* DO NOT CHANGE - hardcoded for kepler gr fifo */
+	NvSubCopy	= 4, /* DO NOT CHANGE - hardcoded for kepler gr fifo */
+	FermiSw		= 5, /* DO NOT CHANGE (well.. 6/7 will work...) */
 };
 
 /* Object handles. */
@@ -194,7 +196,6 @@ WIND_RING(struct nouveau_channel *chan)
 #define NV84_SUBCHAN_UEVENT                                          0x00000020
 #define NV84_SUBCHAN_WRCACHE_FLUSH                                   0x00000024
 #define NV10_SUBCHAN_REF_CNT                                         0x00000050
-#define NVSW_SUBCHAN_PAGE_FLIP                                       0x00000054
 #define NV11_SUBCHAN_DMA_SEMAPHORE                                   0x00000060
 #define NV11_SUBCHAN_SEMAPHORE_OFFSET                                0x00000064
 #define NV11_SUBCHAN_SEMAPHORE_ACQUIRE                               0x00000068
-- 
cgit 


From b9d9dcdaae4a9284ba3484c528f44a9db18faabf Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Mon, 11 Nov 2013 13:59:40 +1000
Subject: drm/nv11-: synchronise flips to vblank, unless async flip requested

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
 drivers/gpu/drm/nouveau/nouveau_display.c | 30 ++++++++++++++++++++++++++----
 drivers/gpu/drm/nouveau/nv04_fbcon.c      |  6 ++++++
 2 files changed, 32 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index 17422bc19529..7809d92183c4 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -398,6 +398,11 @@ nouveau_display_create(struct drm_device *dev)
 	dev->mode_config.preferred_depth = 24;
 	dev->mode_config.prefer_shadow = 1;
 
+	if (nv_device(drm->device)->chipset < 0x11)
+		dev->mode_config.async_page_flip = false;
+	else
+		dev->mode_config.async_page_flip = true;
+
 	drm_kms_helper_poll_init(dev);
 	drm_kms_helper_poll_disable(dev);
 
@@ -579,9 +584,9 @@ fail:
 
 int
 nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
-		       struct drm_pending_vblank_event *event,
-		       uint32_t page_flip_flags)
+		       struct drm_pending_vblank_event *event, u32 flags)
 {
+	const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1;
 	struct drm_device *dev = crtc->dev;
 	struct nouveau_drm *drm = nouveau_drm(dev);
 	struct nouveau_bo *old_bo = nouveau_framebuffer(crtc->fb)->nvbo;
@@ -625,12 +630,29 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 
 	/* Emit a page flip */
 	if (nv_device(drm->device)->card_type >= NV_50) {
-		ret = nv50_display_flip_next(crtc, fb, chan, 0);
+		ret = nv50_display_flip_next(crtc, fb, chan, swap_interval);
 		if (ret)
 			goto fail_unreserve;
 	} else {
 		struct nv04_display *dispnv04 = nv04_display(dev);
-		nouveau_bo_ref(new_bo, &dispnv04->image[nouveau_crtc(crtc)->index]);
+		int head = nouveau_crtc(crtc)->index;
+
+		if (swap_interval) {
+			ret = RING_SPACE(chan, 8);
+			if (ret)
+				goto fail_unreserve;
+
+			BEGIN_NV04(chan, NvSubImageBlit, 0x012c, 1);
+			OUT_RING  (chan, 0);
+			BEGIN_NV04(chan, NvSubImageBlit, 0x0134, 1);
+			OUT_RING  (chan, head);
+			BEGIN_NV04(chan, NvSubImageBlit, 0x0100, 1);
+			OUT_RING  (chan, 0);
+			BEGIN_NV04(chan, NvSubImageBlit, 0x0130, 1);
+			OUT_RING  (chan, 0);
+		}
+
+		nouveau_bo_ref(new_bo, &dispnv04->image[head]);
 	}
 
 	ret = nouveau_page_flip_emit(chan, old_bo, new_bo, s, &fence);
diff --git a/drivers/gpu/drm/nouveau/nv04_fbcon.c b/drivers/gpu/drm/nouveau/nv04_fbcon.c
index 77dcc9c50777..8fe32bbed99a 100644
--- a/drivers/gpu/drm/nouveau/nv04_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nv04_fbcon.c
@@ -255,6 +255,12 @@ nv04_fbcon_accel_init(struct fb_info *info)
 	OUT_RING(chan, NvCtxSurf2D);
 	BEGIN_NV04(chan, NvSubImageBlit, 0x02fc, 1);
 	OUT_RING(chan, 3);
+	if (device->chipset >= 0x11 /*XXX: oclass == 0x009f*/) {
+		BEGIN_NV04(chan, NvSubImageBlit, 0x0120, 3);
+		OUT_RING(chan, 0);
+		OUT_RING(chan, 1);
+		OUT_RING(chan, 2);
+	}
 
 	BEGIN_NV04(chan, NvSubGdiRect, 0x0000, 1);
 	OUT_RING(chan, NvGdiRect);
-- 
cgit 


From 09dacc7bb0c2f32427d926844fca7d5fecec005c Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Wed, 13 Nov 2013 15:52:03 +1000
Subject: drm/nv40/therm: fix slowing down fan when pstate undefined

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
 drivers/gpu/drm/nouveau/core/subdev/therm/base.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/base.c b/drivers/gpu/drm/nouveau/core/subdev/therm/base.c
index 21b2b3021fad..80e584a1bd1c 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/therm/base.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/therm/base.c
@@ -117,7 +117,8 @@ nouveau_therm_update(struct nouveau_therm *therm, int mode)
 		    priv->fan->bios.linear_max_temp) {
 			duty = nouveau_therm_update_linear(therm);
 		} else {
-			duty = priv->cstate;
+			if (priv->cstate)
+				duty = priv->cstate;
 			poll = false;
 		}
 		immd = false;
-- 
cgit 


From 35c336707f51f6336c9cb8a60b6f1aa5a3099ad7 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <bskeggs@redhat.com>
Date: Thu, 14 Nov 2013 08:31:26 +1000
Subject: drm/nouveau/pwr: fix missing mutex unlock in a failure path

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
 drivers/gpu/drm/nouveau/core/subdev/pwr/base.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/core/subdev/pwr/base.c b/drivers/gpu/drm/nouveau/core/subdev/pwr/base.c
index 9908f1f05a00..d4fd3bc9c66f 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/pwr/base.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/pwr/base.c
@@ -32,6 +32,11 @@ nouveau_pwr_send(struct nouveau_pwr *ppwr, u32 reply[2],
 	struct nouveau_subdev *subdev = nv_subdev(ppwr);
 	u32 addr;
 
+	/* wait for a free slot in the fifo */
+	addr  = nv_rd32(ppwr, 0x10a4a0);
+	if (!nv_wait_ne(ppwr, 0x10a4b0, 0xffffffff, addr ^ 8))
+		return -EBUSY;
+
 	/* we currently only support a single process at a time waiting
 	 * on a synchronous reply, take the PPWR mutex and tell the
 	 * receive handler what we're waiting for
@@ -42,11 +47,6 @@ nouveau_pwr_send(struct nouveau_pwr *ppwr, u32 reply[2],
 		ppwr->recv.process = process;
 	}
 
-	/* wait for a free slot in the fifo */
-	addr  = nv_rd32(ppwr, 0x10a4a0);
-	if (!nv_wait_ne(ppwr, 0x10a4b0, 0xffffffff, addr ^ 8))
-		return -EBUSY;
-
 	/* acquire data segment access */
 	do {
 		nv_wr32(ppwr, 0x10a580, 0x00000001);
-- 
cgit 


From 377cfdc6eeced55e220fea2d07d6ebdd32166e66 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 12 Nov 2013 13:34:11 +0100
Subject: drm/nvc0-/gr: shift wrapping bug in nvc0_grctx_generate_r406800

We care about the upper 32 bits here so we have to use 1ULL instead of 1
to avoid a shift wrapping bug.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
 drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.c b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.c
index 64dca260912f..fe67415c3e17 100644
--- a/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.c
+++ b/drivers/gpu/drm/nouveau/core/engine/graph/ctxnvc0.c
@@ -1039,7 +1039,7 @@ nvc0_grctx_generate_r406800(struct nvc0_graph_priv *priv)
 			} while (!tpcnr[gpc]);
 			tpc = priv->tpc_nr[gpc] - tpcnr[gpc]--;
 
-			tpc_set |= 1 << ((gpc * 8) + tpc);
+			tpc_set |= 1ULL << ((gpc * 8) + tpc);
 		}
 
 		nv_wr32(priv, 0x406800 + (i * 0x20), lower_32_bits(tpc_set));
-- 
cgit 


From d2c7ab32ceb0737c1aba84765c555e0f73d3c935 Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Date: Tue, 12 Nov 2013 13:34:12 +0100
Subject: drm/nouveau: do not map evicted vram buffers in nouveau_bo_vma_add

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
---
 drivers/gpu/drm/nouveau/nouveau_bo.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 129aceed407d..c0fde6b9393c 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -1545,7 +1545,8 @@ nouveau_bo_vma_add(struct nouveau_bo *nvbo, struct nouveau_vm *vm,
 
 	if (nvbo->bo.mem.mem_type == TTM_PL_VRAM)
 		nouveau_vm_map(vma, nvbo->bo.mem.mm_node);
-	else if (nvbo->bo.mem.mem_type == TTM_PL_TT) {
+	else if (nvbo->bo.mem.mem_type == TTM_PL_TT &&
+		 nvbo->page_shift == vma->vm->vmm->spg_shift) {
 		if (node->sg)
 			nouveau_vm_map_sg_table(vma, 0, size, node);
 		else
-- 
cgit 


From 41c1358e9181ab1ebd773905b3fa8039b61aa0e9 Mon Sep 17 00:00:00 2001
From: Steve French <smfrench@gmail.com>
Date: Thu, 14 Nov 2013 00:05:36 -0600
Subject: CIFS: SMB2/SMB3 Copy offload support (refcopy) phase 1

This first patch adds the ability for us to do a server side copy
(ie fast copy offloaded to the server to perform, aka refcopy)

"cp --reflink"

of one file to another located on the same server.  This
is much faster than traditional copy (which requires
reading and writing over the network and extra
memcpys).

This first version is not going to be copy
files larger than about 1MB (to Samba) until I add
support for multiple chunks and for autoconfiguring
the chunksize.

It includes:
1) processing of the ioctl
2) marshalling and sending the SMB2/SMB3 fsctl over the network
3) simple parsing of the response

It does not include yet (these will be in followon patches to come soon):
1) support for multiple chunks
2) support for autoconfiguring and remembering the chunksize
3) Support for the older style copychunk which Samba 4.1 server supports
(because this requires write permission on the target file, which
cp does not give you, apparently per-posix).  This may require
a distinct tool (other than cp) and other ioctl to implement.

Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/cifsglob.h |   3 ++
 fs/cifs/ioctl.c    | 111 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 fs/cifs/smb2ops.c  |  82 +++++++++++++++++++++++++++++++++++++++
 fs/cifs/smb2pdu.h  |  15 +++++++-
 4 files changed, 210 insertions(+), 1 deletion(-)

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index cddb807addde..50a6ca1bb521 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -381,6 +381,9 @@ struct smb_version_operations {
 	char * (*create_lease_buf)(u8 *, u8);
 	/* parse lease context buffer and return oplock/epoch info */
 	__u8 (*parse_lease_buf)(void *, unsigned int *);
+	int (*clone_range)(const unsigned int, struct cifsFileInfo *src_file,
+			struct cifsFileInfo *target_file, u64 src_off, u64 len,
+			u64 dest_off);
 };
 
 struct smb_version_values {
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index ba54bf6ab116..409b45eefe70 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -22,12 +22,120 @@
  */
 
 #include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/mount.h>
+#include <linux/mm.h>
+#include <linux/pagemap.h>
+#include <linux/btrfs.h>
 #include "cifspdu.h"
 #include "cifsglob.h"
 #include "cifsproto.h"
 #include "cifs_debug.h"
 #include "cifsfs.h"
 
+static long cifs_ioctl_clone(unsigned int xid, struct file *dst_file,
+			unsigned long srcfd, u64 off, u64 len, u64 destoff)
+{
+	int rc;
+	struct cifsFileInfo *smb_file_target = dst_file->private_data;
+	struct inode *target_inode = file_inode(dst_file);
+	struct cifs_tcon *target_tcon;
+	struct fd src_file;
+	struct cifsFileInfo *smb_file_src;
+	struct inode *src_inode;
+	struct cifs_tcon *src_tcon;
+
+	cifs_dbg(FYI, "ioctl clone range\n");
+	/* the destination must be opened for writing */
+	if (!(dst_file->f_mode & FMODE_WRITE)) {
+		cifs_dbg(FYI, "file target not open for write\n");
+		return -EINVAL;
+	}
+
+	/* check if target volume is readonly and take reference */
+	rc = mnt_want_write_file(dst_file);
+	if (rc) {
+		cifs_dbg(FYI, "mnt_want_write failed with rc %d\n", rc);
+		return rc;
+	}
+
+	src_file = fdget(srcfd);
+	if (!src_file.file) {
+		rc = -EBADF;
+		goto out_drop_write;
+	}
+
+	if ((!src_file.file->private_data) || (!dst_file->private_data)) {
+		rc = -EBADF;
+		cifs_dbg(VFS, "missing cifsFileInfo on copy range src file\n");
+		goto out_fput;
+	}
+
+	rc = -EXDEV;
+	smb_file_target = dst_file->private_data;
+	smb_file_src = src_file.file->private_data;
+	src_tcon = tlink_tcon(smb_file_src->tlink);
+	target_tcon = tlink_tcon(smb_file_target->tlink);
+
+	/* check if source and target are on same tree connection */
+	if (src_tcon != target_tcon) {
+		cifs_dbg(VFS, "file copy src and target on different volume\n");
+		goto out_fput;
+	}
+
+	src_inode = src_file.file->f_dentry->d_inode;
+
+	/*
+	 * Note: cifs case is easier than btrfs since server responsible for
+	 * checks for proper open modes and file type and if it wants
+	 * server could even support copy of range where source = target
+	 */
+
+	/* so we do not deadlock racing two ioctls on same files */
+	if (target_inode < src_inode) {
+		mutex_lock_nested(&target_inode->i_mutex, I_MUTEX_PARENT);
+		mutex_lock_nested(&src_inode->i_mutex, I_MUTEX_CHILD);
+	} else {
+		mutex_lock_nested(&src_inode->i_mutex, I_MUTEX_PARENT);
+		mutex_lock_nested(&target_inode->i_mutex, I_MUTEX_CHILD);
+	}
+
+	/* determine range to clone */
+	rc = -EINVAL;
+	if (off + len > src_inode->i_size || off + len < off)
+		goto out_unlock;
+	if (len == 0)
+		len = src_inode->i_size - off;
+
+	cifs_dbg(FYI, "about to flush pages\n");
+	/* should we flush first and last page first */
+	truncate_inode_pages_range(&target_inode->i_data, destoff,
+				   PAGE_CACHE_ALIGN(destoff + len)-1);
+
+	if (target_tcon->ses->server->ops->clone_range)
+		rc = target_tcon->ses->server->ops->clone_range(xid,
+			smb_file_src, smb_file_target, off, len, destoff);
+
+	/* force revalidate of size and timestamps of target file now
+	   that target is updated on the server */
+	CIFS_I(target_inode)->time = 0;
+out_unlock:
+	/* although unlocking in the reverse order from locking is not
+	   strictly necessary here it is a little cleaner to be consistent */
+	if (target_inode < src_inode) {
+		mutex_unlock(&src_inode->i_mutex);
+		mutex_unlock(&target_inode->i_mutex);
+	} else {
+		mutex_unlock(&target_inode->i_mutex);
+		mutex_unlock(&src_inode->i_mutex);
+	}
+out_fput:
+	fdput(src_file);
+out_drop_write:
+	mnt_drop_write_file(dst_file);
+	return rc;
+}
+
 long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
 {
 	struct inode *inode = file_inode(filep);
@@ -105,6 +213,9 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
 				cifs_dbg(FYI, "set compress flag rc %d\n", rc);
 			}
 			break;
+		case BTRFS_IOC_CLONE:
+			rc = cifs_ioctl_clone(xid, filep, arg, 0, 0, 0);
+			break;
 		default:
 			cifs_dbg(FYI, "unsupported ioctl\n");
 			break;
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index c571be8cb76e..11dde4b24f8a 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -493,6 +493,85 @@ smb2_close_file(const unsigned int xid, struct cifs_tcon *tcon,
 	SMB2_close(xid, tcon, fid->persistent_fid, fid->volatile_fid);
 }
 
+static int
+SMB2_request_res_key(const unsigned int xid, struct cifs_tcon *tcon,
+		     u64 persistent_fid, u64 volatile_fid,
+		     struct copychunk_ioctl *pcchunk)
+{
+	int rc;
+	unsigned int ret_data_len;
+	struct resume_key_req *res_key;
+
+	rc = SMB2_ioctl(xid, tcon, persistent_fid, volatile_fid,
+			FSCTL_SRV_REQUEST_RESUME_KEY, true /* is_fsctl */,
+			NULL, 0 /* no input */,
+			(char **)&res_key, &ret_data_len);
+
+	if (rc) {
+		cifs_dbg(VFS, "refcpy ioctl error %d getting resume key\n", rc);
+		goto req_res_key_exit;
+	}
+	if (ret_data_len < sizeof(struct resume_key_req)) {
+		cifs_dbg(VFS, "Invalid refcopy resume key length\n");
+		rc = -EINVAL;
+		goto req_res_key_exit;
+	}
+	memcpy(pcchunk->SourceKey, res_key->ResumeKey, COPY_CHUNK_RES_KEY_SIZE);
+
+req_res_key_exit:
+	kfree(res_key);
+	return rc;
+}
+
+static int
+smb2_clone_range(const unsigned int xid,
+			struct cifsFileInfo *srcfile,
+			struct cifsFileInfo *trgtfile, u64 src_off,
+			u64 len, u64 dest_off)
+{
+	int rc;
+	unsigned int ret_data_len;
+	struct copychunk_ioctl *pcchunk;
+	char *retbuf = NULL;
+
+	pcchunk = kmalloc(sizeof(struct copychunk_ioctl), GFP_KERNEL);
+
+	if (pcchunk == NULL)
+		return -ENOMEM;
+
+	cifs_dbg(FYI, "in smb2_clone_range - about to call request res key\n");
+	/* Request a key from the server to identify the source of the copy */
+	rc = SMB2_request_res_key(xid, tlink_tcon(srcfile->tlink),
+				srcfile->fid.persistent_fid,
+				srcfile->fid.volatile_fid, pcchunk);
+
+	/* Note: request_res_key sets res_key null only if rc !=0 */
+	if (rc)
+		return rc;
+
+	/* For now array only one chunk long, will make more flexible later */
+	pcchunk->ChunkCount = __constant_cpu_to_le32(1);
+	pcchunk->Reserved = 0;
+	pcchunk->SourceOffset = cpu_to_le64(src_off);
+	pcchunk->TargetOffset = cpu_to_le64(dest_off);
+	pcchunk->Length = cpu_to_le32(len);
+	pcchunk->Reserved2 = 0;
+
+	/* Request that server copy to target from src file identified by key */
+	rc = SMB2_ioctl(xid, tlink_tcon(trgtfile->tlink),
+			trgtfile->fid.persistent_fid,
+			trgtfile->fid.volatile_fid, FSCTL_SRV_COPYCHUNK_WRITE,
+			true /* is_fsctl */, (char *)pcchunk,
+			sizeof(struct copychunk_ioctl),	&retbuf, &ret_data_len);
+
+	/* BB need to special case rc = EINVAL to alter chunk size */
+
+	cifs_dbg(FYI, "rc %d data length out %d\n", rc, ret_data_len);
+
+	kfree(pcchunk);
+	return rc;
+}
+
 static int
 smb2_flush_file(const unsigned int xid, struct cifs_tcon *tcon,
 		struct cifs_fid *fid)
@@ -1017,6 +1096,7 @@ struct smb_version_operations smb20_operations = {
 	.set_oplock_level = smb2_set_oplock_level,
 	.create_lease_buf = smb2_create_lease_buf,
 	.parse_lease_buf = smb2_parse_lease_buf,
+	.clone_range = smb2_clone_range,
 };
 
 struct smb_version_operations smb21_operations = {
@@ -1090,6 +1170,7 @@ struct smb_version_operations smb21_operations = {
 	.set_oplock_level = smb21_set_oplock_level,
 	.create_lease_buf = smb2_create_lease_buf,
 	.parse_lease_buf = smb2_parse_lease_buf,
+	.clone_range = smb2_clone_range,
 };
 
 struct smb_version_operations smb30_operations = {
@@ -1165,6 +1246,7 @@ struct smb_version_operations smb30_operations = {
 	.set_oplock_level = smb3_set_oplock_level,
 	.create_lease_buf = smb3_create_lease_buf,
 	.parse_lease_buf = smb3_parse_lease_buf,
+	.clone_range = smb2_clone_range,
 };
 
 struct smb_version_values smb20_values = {
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 6183b1b7550f..b50a129572cd 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -534,9 +534,16 @@ struct create_durable {
 	} Data;
 } __packed;
 
+#define COPY_CHUNK_RES_KEY_SIZE	24
+struct resume_key_req {
+	char ResumeKey[COPY_CHUNK_RES_KEY_SIZE];
+	__le32	ContextLength;	/* MBZ */
+	char	Context[0];	/* ignored, Windows sets to 4 bytes of zero */
+} __packed;
+
 /* this goes in the ioctl buffer when doing a copychunk request */
 struct copychunk_ioctl {
-	char SourceKey[24];
+	char SourceKey[COPY_CHUNK_RES_KEY_SIZE];
 	__le32 ChunkCount; /* we are only sending 1 */
 	__le32 Reserved;
 	/* array will only be one chunk long for us */
@@ -546,6 +553,12 @@ struct copychunk_ioctl {
 	__u32 Reserved2;
 } __packed;
 
+struct copychunk_ioctl_rsp {
+	__le32 ChunksWritten;
+	__le32 ChunkBytesWritten;
+	__le32 TotalBytesWritten;
+} __packed;
+
 /* Response and Request are the same format */
 struct validate_negotiate_info {
 	__le32 Capabilities;
-- 
cgit 


From cdc992397432bf552820960c8c486a70c23d868e Mon Sep 17 00:00:00 2001
From: Divy Le Ray <divy@chelsio.com>
Date: Mon, 11 Nov 2013 15:01:39 -0800
Subject: MAINTAINERS: cxgb3: Update cxgb3 maintainer entry

Santosh raspatur is taking over the maintenance of cxgb3.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 MAINTAINERS | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 67c0068b7a0f..afba90c456e7 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2455,7 +2455,7 @@ S:	Maintained
 F:	drivers/media/dvb-frontends/cxd2820r*
 
 CXGB3 ETHERNET DRIVER (CXGB3)
-M:	Divy Le Ray <divy@chelsio.com>
+M:	Santosh Raspatur <santosh@chelsio.com>
 L:	netdev@vger.kernel.org
 W:	http://www.chelsio.com
 S:	Supported
-- 
cgit 


From ec9f1d15db8185f63a2c3143dc1e90ba18541b08 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Tue, 12 Nov 2013 15:37:40 +0100
Subject: bonding: don't permit to use ARP monitoring in 802.3ad mode

Currently the ARP monitoring is not supported with 802.3ad, and it's
prohibited to use it via the module params.

However we still can set it afterwards via sysfs, cause we only check for
*LB modes there.

To fix this - add a check for 802.3ad mode in bonding_store_arp_interval.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_sysfs.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index bc8fd362a5aa..6245d92b7a0c 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -524,8 +524,9 @@ static ssize_t bonding_store_arp_interval(struct device *d,
 		goto out;
 	}
 	if (bond->params.mode == BOND_MODE_ALB ||
-	    bond->params.mode == BOND_MODE_TLB) {
-		pr_info("%s: ARP monitoring cannot be used with ALB/TLB. Only MII monitoring is supported on %s.\n",
+	    bond->params.mode == BOND_MODE_TLB ||
+	    bond->params.mode == BOND_MODE_8023AD) {
+		pr_info("%s: ARP monitoring cannot be used with ALB/TLB/802.3ad. Only MII monitoring is supported on %s.\n",
 			bond->dev->name, bond->dev->name);
 		ret = -EINVAL;
 		goto out;
-- 
cgit 


From 52f48d0d9aaa621ffa5e08d79da99a3f8c93b848 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Tue, 12 Nov 2013 16:34:41 +0100
Subject: usbnet: fix status interrupt urb handling

Since commit 7b0c5f21f348a66de495868b8df0284e8dfd6bbf
"sierra_net: keep status interrupt URB active", sierra_net triggers
status interrupt polling before the net_device is opened (in order to
properly receive the sync message response).

To be able to receive further interrupts, the interrupt urb needs to be
re-submitted, so this patch removes the bogus check for netif_running().

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Tested-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/usbnet.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index 90a429b7ebad..8494bb53ebdc 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c
@@ -204,9 +204,6 @@ static void intr_complete (struct urb *urb)
 		break;
 	}
 
-	if (!netif_running (dev->net))
-		return;
-
 	status = usb_submit_urb (urb, GFP_ATOMIC);
 	if (status != 0)
 		netif_err(dev, timer, dev->net,
-- 
cgit 


From 81b9eab5ebbf0d5d54da4fc168cfb02c2adc76b8 Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Tue, 12 Nov 2013 14:39:13 -0800
Subject: core/dev: do not ignore dmac in dev_forward_skb()

commit 06a23fe31ca3
("core/dev: set pkt_type after eth_type_trans() in dev_forward_skb()")
and refactoring 64261f230a91
("dev: move skb_scrub_packet() after eth_type_trans()")

are forcing pkt_type to be PACKET_HOST when skb traverses veth.

which means that ip forwarding will kick in inside netns
even if skb->eth->h_dest != dev->dev_addr

Fix order of eth_type_trans() and skb_scrub_packet() in dev_forward_skb()
and in ip_tunnel_rcv()

Fixes: 06a23fe31ca3 ("core/dev: set pkt_type after eth_type_trans() in dev_forward_skb()")
CC: Isaku Yamahata <yamahatanetdev@gmail.com>
CC: Maciej Zenczykowski <zenczykowski@gmail.com>
CC: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/dev.c       | 6 +-----
 net/ipv4/ip_tunnel.c | 4 ++--
 2 files changed, 3 insertions(+), 7 deletions(-)

diff --git a/net/core/dev.c b/net/core/dev.c
index 8ffc52e01ece..974143d3e727 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1690,13 +1690,9 @@ int dev_forward_skb(struct net_device *dev, struct sk_buff *skb)
 		kfree_skb(skb);
 		return NET_RX_DROP;
 	}
-	skb->protocol = eth_type_trans(skb, dev);
 
-	/* eth_type_trans() can set pkt_type.
-	 * call skb_scrub_packet() after it to clear pkt_type _after_ calling
-	 * eth_type_trans().
-	 */
 	skb_scrub_packet(skb, true);
+	skb->protocol = eth_type_trans(skb, dev);
 
 	return netif_rx(skb);
 }
diff --git a/net/ipv4/ip_tunnel.c b/net/ipv4/ip_tunnel.c
index 63a6d6d6b875..254f11c24aa5 100644
--- a/net/ipv4/ip_tunnel.c
+++ b/net/ipv4/ip_tunnel.c
@@ -454,6 +454,8 @@ int ip_tunnel_rcv(struct ip_tunnel *tunnel, struct sk_buff *skb,
 	tstats->rx_bytes += skb->len;
 	u64_stats_update_end(&tstats->syncp);
 
+	skb_scrub_packet(skb, !net_eq(tunnel->net, dev_net(tunnel->dev)));
+
 	if (tunnel->dev->type == ARPHRD_ETHER) {
 		skb->protocol = eth_type_trans(skb, tunnel->dev);
 		skb_postpull_rcsum(skb, eth_hdr(skb), ETH_HLEN);
@@ -461,8 +463,6 @@ int ip_tunnel_rcv(struct ip_tunnel *tunnel, struct sk_buff *skb,
 		skb->dev = tunnel->dev;
 	}
 
-	skb_scrub_packet(skb, !net_eq(tunnel->net, dev_net(tunnel->dev)));
-
 	gro_cells_receive(&tunnel->gro_cells, skb);
 	return 0;
 
-- 
cgit 


From 64b8c8e573f614853c6cb828b2853da8e285377f Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 13 Nov 2013 10:42:34 +0300
Subject: net: cdc_ncm: cleanup a type issue in cdc_ncm_setup()

This is harmless but cdc_ncm_setup() returns negative error codes
truncated to u8 values.  There is only one caller and treats all
non-zero returns as errors but doesn't store the the return code.  So
the code works correctly but it's messy and upsets the static checkers.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/cdc_ncm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index f74786aa37be..e15ec2b12035 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -66,7 +66,7 @@ static void cdc_ncm_tx_timeout_start(struct cdc_ncm_ctx *ctx);
 static enum hrtimer_restart cdc_ncm_tx_timer_cb(struct hrtimer *hr_timer);
 static struct usb_driver cdc_ncm_driver;
 
-static u8 cdc_ncm_setup(struct usbnet *dev)
+static int cdc_ncm_setup(struct usbnet *dev)
 {
 	struct cdc_ncm_ctx *ctx = (struct cdc_ncm_ctx *)dev->data[0];
 	struct usb_cdc_ncm_ntb_parameters ncm_parm;
-- 
cgit 


From 6115c11fe1a5a636ac99fc823b00df4ff3c0674e Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 13 Nov 2013 10:52:47 +0300
Subject: net: mv643xx_eth: potential NULL dereference in probe()

We assume that "mp->phy" can be NULL a couple lines before the
dereference.

Fixes: 1cce16d37d0f ('net: mv643xx_eth: Add missing phy_addr_set in DT mode')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/marvell/mv643xx_eth.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index 00cd36e08601..61088a6a9424 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -2890,7 +2890,8 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
 					 PHY_INTERFACE_MODE_GMII);
 		if (!mp->phy)
 			err = -ENODEV;
-		phy_addr_set(mp, mp->phy->addr);
+		else
+			phy_addr_set(mp, mp->phy->addr);
 	} else if (pd->phy_addr != MV643XX_ETH_PHY_NONE) {
 		mp->phy = phy_scan(mp, pd->phy_addr);
 
-- 
cgit 


From fdbc3b1f639bb2cbfb32c612b2699e0ba373317d Mon Sep 17 00:00:00 2001
From: Jani Nikula <jani.nikula@intel.com>
Date: Tue, 12 Nov 2013 17:10:13 +0200
Subject: drm/i915/dp: set sink to power down mode on dp disable

We used to put the local sink and any downstream sinks to power down
mode at disable or dpms off using the DPCD SET_POWER register, until
this was broken by

commit e8cb455876fa8f67c6aba394d0a14b697bf04cc3
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Sun Jul 1 13:05:48 2012 +0200

    drm/i915/dp: convert to encoder disable/enable

Fix it.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/i915/intel_dp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index eb8139da9763..0b2e842fef01 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1774,7 +1774,7 @@ static void intel_disable_dp(struct intel_encoder *encoder)
 	 * ensure that we have vdd while we switch off the panel. */
 	ironlake_edp_panel_vdd_on(intel_dp);
 	ironlake_edp_backlight_off(intel_dp);
-	intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_ON);
+	intel_dp_sink_dpms(intel_dp, DRM_MODE_DPMS_OFF);
 	ironlake_edp_panel_off(intel_dp);
 
 	/* cpu edp my only be disable _after_ the cpu pipe/plane is disabled. */
-- 
cgit 


From 7bd40c16ccb2cb6877dd00b0e66249c171e6fa43 Mon Sep 17 00:00:00 2001
From: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Tue, 12 Nov 2013 10:17:39 -0800
Subject: x86/early quirk: use gen6 stolen detection for VLV
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

We've always been able to use either method on VLV, but it appears more
recent BIOSes only support the gen6 method, so switch over to that.

References: https://bugs.freedesktop.org/show_bug.cgi?id=71370
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 arch/x86/kernel/early-quirks.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 96f958d8cd45..bc4a088f9023 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -330,8 +330,8 @@ static struct pci_device_id intel_stolen_ids[] __initdata = {
 	INTEL_I915GM_IDS(gen3_stolen_size),
 	INTEL_I945G_IDS(gen3_stolen_size),
 	INTEL_I945GM_IDS(gen3_stolen_size),
-	INTEL_VLV_M_IDS(gen3_stolen_size),
-	INTEL_VLV_D_IDS(gen3_stolen_size),
+	INTEL_VLV_M_IDS(gen6_stolen_size),
+	INTEL_VLV_D_IDS(gen6_stolen_size),
 	INTEL_PINEVIEW_IDS(gen3_stolen_size),
 	INTEL_I965G_IDS(gen3_stolen_size),
 	INTEL_G33_IDS(gen3_stolen_size),
-- 
cgit 


From 83651bb988b169deae16608262e996eb718c6ab4 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 14 Nov 2013 10:58:30 +0000
Subject: ARM: Fix nommu.c build warning

The 0-day kernel build robot found this new warning:

arch/arm/mm/nommu.c:303:17: warning: 'struct proc_info_list' declared inside parameter list [enabled by default]
arch/arm/mm/nommu.c:303:17: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default]

Fix it by including the appropriate header.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mm/nommu.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mm/nommu.c b/arch/arm/mm/nommu.c
index 5c668b7a31f9..55764a7ef1f0 100644
--- a/arch/arm/mm/nommu.c
+++ b/arch/arm/mm/nommu.c
@@ -18,6 +18,7 @@
 #include <asm/mach/arch.h>
 #include <asm/cputype.h>
 #include <asm/mpu.h>
+#include <asm/procinfo.h>
 
 #include "mm.h"
 
-- 
cgit 


From 10593b2e49327f7cd193fc2ba30fa3da322bda6a Mon Sep 17 00:00:00 2001
From: Victor Kamensky <victor.kamensky@linaro.org>
Date: Thu, 7 Nov 2013 08:42:40 +0100
Subject: ARM: 7881/1: __fixup_smp read of SCU config should do byteswap in BE
 case

Commit "bc41b8724f24b9a27d1dcc6c974b8f686b38d554 ARM: 7846/1:
Update SMP_ON_UP code to detect A9MPCore with 1 CPU devices"
added read of SCU config register into __fixup_smp function.
Such read should be followed by byteswap, if kernel runs in
BE mode.

Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/head.S | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index 7801866e626a..cd788d5b6682 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -508,6 +508,7 @@ __fixup_smp:
 	teq	r0, #0x0		@ '0' on actual UP A9 hardware
 	beq	__fixup_smp_on_up	@ So its an A9 UP
 	ldr	r0, [r0, #4]		@ read SCU Config
+ARM_BE8(rev	r0, r0)			@ byteswap if big endian
 	and	r0, r0, #0x3		@ number of CPUs
 	teq	r0, #0x0		@ is 1?
 	movne	pc, lr
-- 
cgit 


From 139cc2ba7400dab80228a2bfa683e2f49cf5d3ff Mon Sep 17 00:00:00 2001
From: Victor Kamensky <victor.kamensky@linaro.org>
Date: Thu, 7 Nov 2013 08:42:41 +0100
Subject: ARM: 7882/1: mm: fix __phys_to_virt to work with 64 bit phys_addr_t
 in BE case

Make sure that inline assembler that expects 'r' operand
receives 32 bit value.

Before this fix in case of CONFIG_ARCH_PHYS_ADDR_T_64BIT and
CONFIG_ARM_PATCH_PHYS_VIRT __phys_to_virt function passed 64 bit
value to __pv_stub inline assembler where 'r' operand is
expected. Compiler behavior in such case is not well specified.
It worked in little endian case, but in big endian case
incorrect code was generated, where compiler confused which
part of 64 bit value it needed to modify. For example BE
snippet looked like this:

N:0x80904E08 : MOV      r2,#0
N:0x80904E0C : SUB      r2,r2,#0x81000000

when LE similar code looked like this

N:0x808FCE2C : MOV      r2,r0
N:0x808FCE30 : SUB      r2,r2,#0xc0, 8 ; #0xc0000000

Note 'r0' register is va that have to be translated into phys

To avoid this situation use explicit cast to 'unsigned long',
which explicitly discard upper part of phys address and convert
value to 32 bit. Also add comment so such cast will not be
removed in the future.

Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/include/asm/memory.h | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index 4dd21457ef9d..9ecccc865046 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -226,7 +226,14 @@ static inline phys_addr_t __virt_to_phys(unsigned long x)
 static inline unsigned long __phys_to_virt(phys_addr_t x)
 {
 	unsigned long t;
-	__pv_stub(x, t, "sub", __PV_BITS_31_24);
+
+	/*
+	 * 'unsigned long' cast discard upper word when
+	 * phys_addr_t is 64 bit, and makes sure that inline
+	 * assembler expression receives 32 bit argument
+	 * in place where 'r' 32 bit operand is expected.
+	 */
+	__pv_stub((unsigned long) x, t, "sub", __PV_BITS_31_24);
 	return t;
 }
 
-- 
cgit 


From d9a790df8e984b143e71ca429316064adaecf65c Mon Sep 17 00:00:00 2001
From: Victor Kamensky <victor.kamensky@linaro.org>
Date: Thu, 7 Nov 2013 08:42:42 +0100
Subject: ARM: 7883/1: fix mov to mvn conversion in case of 64 bit phys_addr_t
 and BE

Fix patching code to convert mov instruction into mvn instruction
in case of CONFIG_ARCH_PHYS_ADDR_T_64BIT and CONFIG_ARM_PATCH_PHYS_VIRT.

In BE case store into r0 proper bits so byte swapped instruction
could be modified correctly.

Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Reviewed-by: R Sricharan <r.sricharan@ti.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/head.S | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index cd788d5b6682..11d59b32fb8d 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -644,8 +644,12 @@ ARM_BE8(rev16	ip, ip)
 	ldrcc	r7, [r4], #4	@ use branch for delay slot
 	bcc	1b
 	bx	lr
+#else
+#ifdef CONFIG_CPU_ENDIAN_BE8
+	moveq	r0, #0x00004000	@ set bit 22, mov to mvn instruction
 #else
 	moveq	r0, #0x400000	@ set bit 22, mov to mvn instruction
+#endif
 	b	2f
 1:	ldr	ip, [r7, r3]
 #ifdef CONFIG_CPU_ENDIAN_BE8
@@ -654,7 +658,7 @@ ARM_BE8(rev16	ip, ip)
 	tst	ip, #0x000f0000	@ check the rotation field
 	orrne	ip, ip, r6, lsl #24 @ mask in offset bits 31-24
 	biceq	ip, ip, #0x00004000 @ clear bit 22
-	orreq	ip, ip, r0, lsl #24 @ mask in offset bits 7-0
+	orreq	ip, ip, r0      @ mask in offset bits 7-0
 #else
 	bic	ip, ip, #0x000000ff
 	tst	ip, #0xf00	@ check the rotation field
-- 
cgit 


From 905b57972149f205aa73b0a3b6935b0e5470ab24 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 7 Nov 2013 12:49:53 +0100
Subject: ARM: 7884/1: mm: Fix ECC mem policy printk

ECC policy can be applied to the whole system
when this bit is implemented by SoC vendor
(IMP - bit 9 - in L1 page table entry format).
When this bit is not implemented by SoC vendor
it doesn't mean that system has no other way
how to do ECC.
This patch ensures to show this message only when ECC
is requested via cmd line ecc=on and runs on
appropriate ARM core.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mm/mmu.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 78eeeca78f5a..580ef2de82d7 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -558,8 +558,8 @@ static void __init build_mem_type_table(void)
 		mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_WB;
 		break;
 	}
-	printk("Memory policy: ECC %sabled, Data cache %s\n",
-		ecc_mask ? "en" : "dis", cp->policy);
+	pr_info("Memory policy: %sData cache %s\n",
+		ecc_mask ? "ECC enabled, " : "", cp->policy);
 
 	for (i = 0; i < ARRAY_SIZE(mem_types); i++) {
 		struct mem_type *t = &mem_types[i];
-- 
cgit 


From f3db3f4389dbd9a8c2b4477f37a6ebddfd670ad8 Mon Sep 17 00:00:00 2001
From: Mahesh Sivasubramanian <msivasub@codeaurora.org>
Date: Fri, 8 Nov 2013 23:25:20 +0100
Subject: ARM: 7885/1: Save/Restore 64-bit TTBR registers on LPAE
 suspend/resume

LPAE enabled kernels use the 64-bit version of TTBR0 and TTBR1
registers. If we're running an LPAE kernel, fill the upper half
of TTBR0 with 0 because we're setting it to the idmap here (the
idmap is guaranteed to be < 4Gb) and fully restore TTBR1 instead
of just restoring the lower 32 bits. Failure to do so can cause
failures on resume from suspend when these registers are only
half restored.

Signed-off-by: Mahesh Sivasubramanian <msivasub@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mm/proc-v7.S | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mm/proc-v7.S b/arch/arm/mm/proc-v7.S
index 60920f62fdf5..bd1781979a39 100644
--- a/arch/arm/mm/proc-v7.S
+++ b/arch/arm/mm/proc-v7.S
@@ -92,7 +92,7 @@ ENDPROC(cpu_v7_dcache_clean_area)
 
 /* Suspend/resume support: derived from arch/arm/mach-s5pv210/sleep.S */
 .globl	cpu_v7_suspend_size
-.equ	cpu_v7_suspend_size, 4 * 8
+.equ	cpu_v7_suspend_size, 4 * 9
 #ifdef CONFIG_ARM_CPU_SUSPEND
 ENTRY(cpu_v7_do_suspend)
 	stmfd	sp!, {r4 - r10, lr}
@@ -101,13 +101,17 @@ ENTRY(cpu_v7_do_suspend)
 	stmia	r0!, {r4 - r5}
 #ifdef CONFIG_MMU
 	mrc	p15, 0, r6, c3, c0, 0	@ Domain ID
+#ifdef CONFIG_ARM_LPAE
+	mrrc	p15, 1, r5, r7, c2	@ TTB 1
+#else
 	mrc	p15, 0, r7, c2, c0, 1	@ TTB 1
+#endif
 	mrc	p15, 0, r11, c2, c0, 2	@ TTB control register
 #endif
 	mrc	p15, 0, r8, c1, c0, 0	@ Control register
 	mrc	p15, 0, r9, c1, c0, 1	@ Auxiliary control register
 	mrc	p15, 0, r10, c1, c0, 2	@ Co-processor access control
-	stmia	r0, {r6 - r11}
+	stmia	r0, {r5 - r11}
 	ldmfd	sp!, {r4 - r10, pc}
 ENDPROC(cpu_v7_do_suspend)
 
@@ -118,16 +122,19 @@ ENTRY(cpu_v7_do_resume)
 	ldmia	r0!, {r4 - r5}
 	mcr	p15, 0, r4, c13, c0, 0	@ FCSE/PID
 	mcr	p15, 0, r5, c13, c0, 3	@ User r/o thread ID
-	ldmia	r0, {r6 - r11}
+	ldmia	r0, {r5 - r11}
 #ifdef CONFIG_MMU
 	mcr	p15, 0, ip, c8, c7, 0	@ invalidate TLBs
 	mcr	p15, 0, r6, c3, c0, 0	@ Domain ID
-#ifndef CONFIG_ARM_LPAE
+#ifdef CONFIG_ARM_LPAE
+	mcrr	p15, 0, r1, ip, c2	@ TTB 0
+	mcrr	p15, 1, r5, r7, c2	@ TTB 1
+#else
 	ALT_SMP(orr	r1, r1, #TTB_FLAGS_SMP)
 	ALT_UP(orr	r1, r1, #TTB_FLAGS_UP)
-#endif
 	mcr	p15, 0, r1, c2, c0, 0	@ TTB 0
 	mcr	p15, 0, r7, c2, c0, 1	@ TTB 1
+#endif
 	mcr	p15, 0, r11, c2, c0, 2	@ TTB control register
 	ldr	r4, =PRRR		@ PRRR
 	ldr	r5, =NMRR		@ NMRR
-- 
cgit 


From b02f84671cd0c69400daf1595e7c321ea8e6c657 Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Sat, 9 Nov 2013 00:31:11 +0100
Subject: ARM: 7886/1: make OABI default to off

Given recent discussions about the lack of OABI in the wild, switch
CONFIG_OABI_COMPAT to off-by-default to encourage more system builders
to avoid it.

Signed-off-by: Kees Cook <keescook@chromium.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 603d661b445d..fa5c6003e304 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1719,7 +1719,6 @@ config AEABI
 config OABI_COMPAT
 	bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
 	depends on AEABI && !THUMB2_KERNEL
-	default y
 	help
 	  This option preserves the old syscall interface along with the
 	  new (ARM EABI) one. It also provides a compatibility layer to
@@ -1731,7 +1730,7 @@ config OABI_COMPAT
 	  can say N here. If this option is not selected and you attempt
 	  to execute a legacy ABI binary then the result will be
 	  UNPREDICTABLE (in fact it can be predicted that it won't work
-	  at all). If in doubt say Y.
+	  at all). If in doubt say N.
 
 config ARCH_HAS_HOLES_MEMORYMODEL
 	bool
-- 
cgit 


From 9170217510cd280c704966738e7c1660c8fa5cbd Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Sat, 9 Nov 2013 00:51:56 +0100
Subject: ARM: 7888/1: seccomp: not compatible with ARM OABI

Make sure that seccomp filter won't be built when ARM OABI is in use,
since there is work needed to distinguish calling conventions. Until
that is done (which is likely never since OABI is deprecated), make
sure seccomp filter is unavailable in the OABI world.

Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Will Drewry <wad@chromium.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index fa5c6003e304..085b31ba287a 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -24,7 +24,7 @@ config ARM
 	select HARDIRQS_SW_RESEND
 	select HAVE_ARCH_JUMP_LABEL if !XIP_KERNEL
 	select HAVE_ARCH_KGDB
-	select HAVE_ARCH_SECCOMP_FILTER
+	select HAVE_ARCH_SECCOMP_FILTER if (AEABI && !OABI_COMPAT)
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_BPF_JIT
 	select HAVE_CONTEXT_TRACKING
@@ -1726,6 +1726,11 @@ config OABI_COMPAT
 	  in memory differs between the legacy ABI and the new ARM EABI
 	  (only for non "thumb" binaries). This option adds a tiny
 	  overhead to all syscalls and produces a slightly larger kernel.
+
+	  The seccomp filter system will not be available when this is
+	  selected, since there is no way yet to sensibly distinguish
+	  between calling conventions during filtering.
+
 	  If you know you'll be using only pure EABI user space then you
 	  can say N here. If this option is not selected and you attempt
 	  to execute a legacy ABI binary then the result will be
-- 
cgit 


From 88baf7148e899db7e0b676e4363647f50e48eaed Mon Sep 17 00:00:00 2001
From: Tim Harvey <tharvey@gateworks.com>
Date: Tue, 5 Nov 2013 21:17:25 -0800
Subject: regulator: pfuze100: allow misprogrammed ID

prior to week 08 of 2013 Freescale misprogrammed between 1 and 3% of
PFUZE1000 parts with a ID=0x8 instead of the expected ID=0x0

Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
---
 drivers/regulator/pfuze100-regulator.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/regulator/pfuze100-regulator.c b/drivers/regulator/pfuze100-regulator.c
index ba67b2c4e2e7..032df3799efb 100644
--- a/drivers/regulator/pfuze100-regulator.c
+++ b/drivers/regulator/pfuze100-regulator.c
@@ -308,9 +308,15 @@ static int pfuze_identify(struct pfuze_chip *pfuze_chip)
 	if (ret)
 		return ret;
 
-	if (value & 0x0f) {
-		dev_warn(pfuze_chip->dev, "Illegal ID: %x\n", value);
-		return -ENODEV;
+	switch (value & 0x0f) {
+		/* Freescale misprogrammed 1-3% of parts prior to week 8 of 2013 as ID=8 */
+		case 0x8:
+			dev_info(pfuze_chip->dev, "Assuming misprogrammed ID=0x8");
+		case 0x0:
+			break;
+		default:
+			dev_warn(pfuze_chip->dev, "Illegal ID: %x\n", value);
+			return -ENODEV;
 	}
 
 	ret = regmap_read(pfuze_chip->regmap, PFUZE100_REVID, &value);
-- 
cgit 


From bb4c5500c9c5b809696eee212843e731721a6e15 Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Thu, 14 Nov 2013 08:33:24 +0100
Subject: tools/perf/build: Fix timerfd feature check

'feature_timerfd' is checked all the time and calculated explicitly,
in a serial fashion. Add it to CORE_FEATURE_TESTS which causes it to
be built in parallel, using the newfangled parallel build autodetection
code.

This shaves 137 msecs off the perf build time on my system, which
speeds up the common case cached build by 43%:

Before:

  comet:~/tip> perf stat --null --repeat 5 make -C tools/perf/
  [...]
         0,453771441 seconds time elapsed                                          ( +-  0,09% )

After:

  comet:~/tip> perf stat --null --repeat 5 make -C tools/perf/
  [...]
         0,316290185 seconds time elapsed                                          ( +-  0,24% )

Cc: David Ahern <dsahern@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: http://lkml.kernel.org/n/tip-bb92CmexihopoSyqnkqepvsy@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index f5905f2b197d..861379ec7632 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -142,7 +142,8 @@ CORE_FEATURE_TESTS =			\
 	libunwind			\
 	on-exit				\
 	stackprotector			\
-	stackprotector-all
+	stackprotector-all		\
+	timerfd
 
 #
 # So here we detect whether test-all was rebuilt, to be able
@@ -405,7 +406,6 @@ else
   endif
 endif
 
-$(call feature_check,timerfd)
 ifeq ($(feature-timerfd), 1)
   CFLAGS += -DHAVE_TIMERFD_SUPPORT
 else
-- 
cgit 


From fc7dc61d9a87011aaf8a6eb3144ebf9552adf5d2 Mon Sep 17 00:00:00 2001
From: Oskar Schirmer <oskar@scara.com>
Date: Tue, 12 Nov 2013 15:46:38 +0000
Subject: ASoC: fsl: imx-pcm-fiq: omit fiq counter to avoid harm in unbalanced
 situations

Unbalanced calls to snd_imx_pcm_trigger() may result in endless
FIQ activity and thus provoke eternal sound. While on the first glance,
the switch statement looks pretty symmetric, the SUSPEND/RESUME
pair is not: the suspend case comes along snd_pcm_suspend_all(),
which for fsl/imx-pcm-fiq is called only at snd_soc_suspend(),
but the resume case originates straight from the SNDRV_PCM_IOCTL_RESUME.
This way userland may provoke an unbalanced resume, which might cause
the fiq_enable counter to increase and never return to zero again,
so eventually imx_pcm_fiq is never disabled.

Simply removing the fiq_enable will solve the problem, as long as
one never goes play and capture game simultaneously, but beware
trying both at once, the early TRIGGER_STOP will cut off the other
activity prematurely. So now playing and capturing is scrutinized
separately, instead of by counting.

Signed-off-by: Oskar Schirmer <oskar@scara.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
---
 sound/soc/fsl/imx-pcm-fiq.c | 29 +++++++++++++++++------------
 1 file changed, 17 insertions(+), 12 deletions(-)

diff --git a/sound/soc/fsl/imx-pcm-fiq.c b/sound/soc/fsl/imx-pcm-fiq.c
index 34043c55f2a6..2fc872b2deff 100644
--- a/sound/soc/fsl/imx-pcm-fiq.c
+++ b/sound/soc/fsl/imx-pcm-fiq.c
@@ -44,7 +44,8 @@ struct imx_pcm_runtime_data {
 	struct hrtimer hrt;
 	int poll_time_ns;
 	struct snd_pcm_substream *substream;
-	atomic_t running;
+	atomic_t playing;
+	atomic_t capturing;
 };
 
 static enum hrtimer_restart snd_hrtimer_callback(struct hrtimer *hrt)
@@ -56,7 +57,7 @@ static enum hrtimer_restart snd_hrtimer_callback(struct hrtimer *hrt)
 	struct pt_regs regs;
 	unsigned long delta;
 
-	if (!atomic_read(&iprtd->running))
+	if (!atomic_read(&iprtd->playing) && !atomic_read(&iprtd->capturing))
 		return HRTIMER_NORESTART;
 
 	get_fiq_regs(&regs);
@@ -124,7 +125,6 @@ static int snd_imx_pcm_prepare(struct snd_pcm_substream *substream)
 	return 0;
 }
 
-static int fiq_enable;
 static int imx_pcm_fiq;
 
 static int snd_imx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
@@ -136,23 +136,27 @@ static int snd_imx_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 	case SNDRV_PCM_TRIGGER_START:
 	case SNDRV_PCM_TRIGGER_RESUME:
 	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-		atomic_set(&iprtd->running, 1);
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+			atomic_set(&iprtd->playing, 1);
+		else
+			atomic_set(&iprtd->capturing, 1);
 		hrtimer_start(&iprtd->hrt, ns_to_ktime(iprtd->poll_time_ns),
 		      HRTIMER_MODE_REL);
-		if (++fiq_enable == 1)
-			enable_fiq(imx_pcm_fiq);
-
+		enable_fiq(imx_pcm_fiq);
 		break;
 
 	case SNDRV_PCM_TRIGGER_STOP:
 	case SNDRV_PCM_TRIGGER_SUSPEND:
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-		atomic_set(&iprtd->running, 0);
-
-		if (--fiq_enable == 0)
+		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
+			atomic_set(&iprtd->playing, 0);
+		else
+			atomic_set(&iprtd->capturing, 0);
+		if (!atomic_read(&iprtd->playing) &&
+				!atomic_read(&iprtd->capturing))
 			disable_fiq(imx_pcm_fiq);
-
 		break;
+
 	default:
 		return -EINVAL;
 	}
@@ -200,7 +204,8 @@ static int snd_imx_open(struct snd_pcm_substream *substream)
 
 	iprtd->substream = substream;
 
-	atomic_set(&iprtd->running, 0);
+	atomic_set(&iprtd->playing, 0);
+	atomic_set(&iprtd->capturing, 0);
 	hrtimer_init(&iprtd->hrt, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
 	iprtd->hrt.function = snd_hrtimer_callback;
 
-- 
cgit 


From 62fe318256befbd1b4a6765e71d9c997f768fe79 Mon Sep 17 00:00:00 2001
From: David Howells <dhowells@redhat.com>
Date: Thu, 14 Nov 2013 13:02:31 +0000
Subject: KEYS: Fix keyring content gc scanner

Key pointers stored in the keyring are marked in bit 1 to indicate if they
point to a keyring.  We need to strip off this bit before using the pointer
when iterating over the keyring for the purpose of looking for links to garbage
collect.

This means that expirable keyrings aren't correctly expiring because the
checker is seeing their key pointer with 2 added to it.

Since the fix for this involves knowing about the internals of the keyring,
key_gc_keyring() is moved to keyring.c and merged into keyring_gc().

This can be tested by:

	echo 2 >/proc/sys/kernel/keys/gc_delay
	keyctl timeout `keyctl add keyring qwerty "" @s` 2
	cat /proc/keys
	sleep 5; cat /proc/keys

which should see a keyring called "qwerty" appear in the session keyring and
then disappear after it expires, and:

	echo 2 >/proc/sys/kernel/keys/gc_delay
	a=`keyctl get_persistent @s`
	b=`keyctl add keyring 0 "" $a`
	keyctl add user a a $b
	keyctl timeout $b 2
	cat /proc/keys
	sleep 5; cat /proc/keys

which should see a keyring called "0" with a key called "a" in it appear in the
user's persistent keyring (which will be attached to the session keyring) and
then both the "0" keyring and the "a" key should disappear when the "0" keyring
expires.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Simo Sorce <simo@redhat.com>
---
 security/keys/gc.c      | 42 +-----------------------------------------
 security/keys/keyring.c | 45 +++++++++++++++++++++++++++++++++++----------
 2 files changed, 36 insertions(+), 51 deletions(-)

diff --git a/security/keys/gc.c b/security/keys/gc.c
index cce621c33dce..d3222b6d7d59 100644
--- a/security/keys/gc.c
+++ b/security/keys/gc.c
@@ -130,46 +130,6 @@ void key_gc_keytype(struct key_type *ktype)
 	kleave("");
 }
 
-static int key_gc_keyring_func(const void *object, void *iterator_data)
-{
-	const struct key *key = object;
-	time_t *limit = iterator_data;
-	return key_is_dead(key, *limit);
-}
-
-/*
- * Garbage collect pointers from a keyring.
- *
- * Not called with any locks held.  The keyring's key struct will not be
- * deallocated under us as only our caller may deallocate it.
- */
-static void key_gc_keyring(struct key *keyring, time_t limit)
-{
-	int result;
-
-	kenter("%x{%s}", keyring->serial, keyring->description ?: "");
-
-	if (keyring->flags & ((1 << KEY_FLAG_INVALIDATED) |
-			      (1 << KEY_FLAG_REVOKED)))
-		goto dont_gc;
-
-	/* scan the keyring looking for dead keys */
-	rcu_read_lock();
-	result = assoc_array_iterate(&keyring->keys,
-				     key_gc_keyring_func, &limit);
-	rcu_read_unlock();
-	if (result == true)
-		goto do_gc;
-
-dont_gc:
-	kleave(" [no gc]");
-	return;
-
-do_gc:
-	keyring_gc(keyring, limit);
-	kleave(" [gc]");
-}
-
 /*
  * Garbage collect a list of unreferenced, detached keys
  */
@@ -388,7 +348,7 @@ found_unreferenced_key:
 	 */
 found_keyring:
 	spin_unlock(&key_serial_lock);
-	key_gc_keyring(key, limit);
+	keyring_gc(key, limit);
 	goto maybe_resched;
 
 	/* We found a dead key that is still referenced.  Reset its type and
diff --git a/security/keys/keyring.c b/security/keys/keyring.c
index d80311e571c3..69f0cb7bab7e 100644
--- a/security/keys/keyring.c
+++ b/security/keys/keyring.c
@@ -1304,7 +1304,7 @@ static void keyring_revoke(struct key *keyring)
 	}
 }
 
-static bool gc_iterator(void *object, void *iterator_data)
+static bool keyring_gc_select_iterator(void *object, void *iterator_data)
 {
 	struct key *key = keyring_ptr_to_key(object);
 	time_t *limit = iterator_data;
@@ -1315,22 +1315,47 @@ static bool gc_iterator(void *object, void *iterator_data)
 	return true;
 }
 
+static int keyring_gc_check_iterator(const void *object, void *iterator_data)
+{
+	const struct key *key = keyring_ptr_to_key(object);
+	time_t *limit = iterator_data;
+
+	key_check(key);
+	return key_is_dead(key, *limit);
+}
+
 /*
- * Collect garbage from the contents of a keyring, replacing the old list with
- * a new one with the pointers all shuffled down.
+ * Garbage collect pointers from a keyring.
  *
- * Dead keys are classed as oned that are flagged as being dead or are revoked,
- * expired or negative keys that were revoked or expired before the specified
- * limit.
+ * Not called with any locks held.  The keyring's key struct will not be
+ * deallocated under us as only our caller may deallocate it.
  */
 void keyring_gc(struct key *keyring, time_t limit)
 {
-	kenter("{%x,%s}", key_serial(keyring), keyring->description);
+	int result;
+
+	kenter("%x{%s}", keyring->serial, keyring->description ?: "");
 
+	if (keyring->flags & ((1 << KEY_FLAG_INVALIDATED) |
+			      (1 << KEY_FLAG_REVOKED)))
+		goto dont_gc;
+
+	/* scan the keyring looking for dead keys */
+	rcu_read_lock();
+	result = assoc_array_iterate(&keyring->keys,
+				     keyring_gc_check_iterator, &limit);
+	rcu_read_unlock();
+	if (result == true)
+		goto do_gc;
+
+dont_gc:
+	kleave(" [no gc]");
+	return;
+
+do_gc:
 	down_write(&keyring->sem);
 	assoc_array_gc(&keyring->keys, &keyring_assoc_array_ops,
-		       gc_iterator, &limit);
+		       keyring_gc_select_iterator, &limit);
 	up_write(&keyring->sem);
-
-	kleave("");
+	kleave(" [gc]");
 }
-- 
cgit 


From 6408eac2665955343cd0e4bcd7d6237ce39611ed Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 14 Nov 2013 15:45:12 +0100
Subject: ALSA: pcsp: Fix the order of input device unregistration

The current code may access to the already freed object.  The input
device must be accessed and unregistered before freeing the top level
sound object.

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/drivers/pcsp/pcsp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/drivers/pcsp/pcsp.c b/sound/drivers/pcsp/pcsp.c
index f664bae3b9b0..328bd29264ce 100644
--- a/sound/drivers/pcsp/pcsp.c
+++ b/sound/drivers/pcsp/pcsp.c
@@ -188,8 +188,8 @@ static int pcsp_probe(struct platform_device *dev)
 static int pcsp_remove(struct platform_device *dev)
 {
 	struct snd_pcsp *chip = platform_get_drvdata(dev);
-	alsa_card_pcsp_exit(chip);
 	pcspkr_input_remove(chip->input_dev);
+	alsa_card_pcsp_exit(chip);
 	return 0;
 }
 
-- 
cgit 


From f618ef7c47934d1686a764d0c9f70f23e566683f Mon Sep 17 00:00:00 2001
From: Paul Gortmaker <paul.gortmaker@windriver.com>
Date: Thu, 14 Nov 2013 08:26:02 -0700
Subject: blk-mq: remove newly added instances of __cpuinit

The new blk-mq code added new instances of __cpuinit usage.
We removed this a couple versions ago; we now want to remove
the compat no-op stubs.  Introducing new users is not what
we want to see at this point in time, as it will break once
the stubs are gone.

Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-mq-cpu.c | 8 ++++----
 block/blk-mq.c     | 6 +++---
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/block/blk-mq-cpu.c b/block/blk-mq-cpu.c
index f8ea39d7ae54..0045ace9bdf0 100644
--- a/block/blk-mq-cpu.c
+++ b/block/blk-mq-cpu.c
@@ -13,8 +13,8 @@
 static LIST_HEAD(blk_mq_cpu_notify_list);
 static DEFINE_SPINLOCK(blk_mq_cpu_notify_lock);
 
-static int __cpuinit blk_mq_main_cpu_notify(struct notifier_block *self,
-					    unsigned long action, void *hcpu)
+static int blk_mq_main_cpu_notify(struct notifier_block *self,
+				  unsigned long action, void *hcpu)
 {
 	unsigned int cpu = (unsigned long) hcpu;
 	struct blk_mq_cpu_notifier *notify;
@@ -28,8 +28,8 @@ static int __cpuinit blk_mq_main_cpu_notify(struct notifier_block *self,
 	return NOTIFY_OK;
 }
 
-static void __cpuinit blk_mq_cpu_notify(void *data, unsigned long action,
-					unsigned int cpu)
+static void blk_mq_cpu_notify(void *data, unsigned long action,
+			      unsigned int cpu)
 {
 	if (action == CPU_DEAD || action == CPU_DEAD_FROZEN) {
 		/*
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 88d4e864d4c0..3638a58c7645 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1444,7 +1444,7 @@ void blk_mq_free_queue(struct request_queue *q)
 EXPORT_SYMBOL(blk_mq_free_queue);
 
 /* Basically redo blk_mq_init_queue with queue frozen */
-static void __cpuinit blk_mq_queue_reinit(struct request_queue *q)
+static void blk_mq_queue_reinit(struct request_queue *q)
 {
 	blk_mq_freeze_queue(q);
 
@@ -1461,8 +1461,8 @@ static void __cpuinit blk_mq_queue_reinit(struct request_queue *q)
 	blk_mq_unfreeze_queue(q);
 }
 
-static int __cpuinit blk_mq_queue_reinit_notify(struct notifier_block *nb,
-		unsigned long action, void *hcpu)
+static int blk_mq_queue_reinit_notify(struct notifier_block *nb,
+				      unsigned long action, void *hcpu)
 {
 	struct request_queue *q;
 
-- 
cgit 


From 1cf7e9c68fe84248174e998922b39e508375e7c1 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Fri, 1 Nov 2013 10:52:52 -0600
Subject: virtio_blk: blk-mq support

Switch virtio-blk from the dual support for old-style requests and bios
to use the block-multiqueue.

Acked-by: Asias He <asias@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 drivers/block/virtio_blk.c | 322 +++++++++------------------------------------
 1 file changed, 65 insertions(+), 257 deletions(-)

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 5cdf88b7ad9e..7455fe24bbbe 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -11,12 +11,11 @@
 #include <linux/string_helpers.h>
 #include <scsi/scsi_cmnd.h>
 #include <linux/idr.h>
+#include <linux/blk-mq.h>
+#include <linux/numa.h>
 
 #define PART_BITS 4
 
-static bool use_bio;
-module_param(use_bio, bool, S_IRUGO);
-
 static int major;
 static DEFINE_IDA(vd_index_ida);
 
@@ -26,13 +25,11 @@ struct virtio_blk
 {
 	struct virtio_device *vdev;
 	struct virtqueue *vq;
-	wait_queue_head_t queue_wait;
+	spinlock_t vq_lock;
 
 	/* The disk structure for the kernel. */
 	struct gendisk *disk;
 
-	mempool_t *pool;
-
 	/* Process context for config space updates */
 	struct work_struct config_work;
 
@@ -47,31 +44,17 @@ struct virtio_blk
 
 	/* Ida index - used to track minor number allocations. */
 	int index;
-
-	/* Scatterlist: can be too big for stack. */
-	struct scatterlist sg[/*sg_elems*/];
 };
 
 struct virtblk_req
 {
 	struct request *req;
-	struct bio *bio;
 	struct virtio_blk_outhdr out_hdr;
 	struct virtio_scsi_inhdr in_hdr;
-	struct work_struct work;
-	struct virtio_blk *vblk;
-	int flags;
 	u8 status;
 	struct scatterlist sg[];
 };
 
-enum {
-	VBLK_IS_FLUSH		= 1,
-	VBLK_REQ_FLUSH		= 2,
-	VBLK_REQ_DATA		= 4,
-	VBLK_REQ_FUA		= 8,
-};
-
 static inline int virtblk_result(struct virtblk_req *vbr)
 {
 	switch (vbr->status) {
@@ -84,22 +67,6 @@ static inline int virtblk_result(struct virtblk_req *vbr)
 	}
 }
 
-static inline struct virtblk_req *virtblk_alloc_req(struct virtio_blk *vblk,
-						    gfp_t gfp_mask)
-{
-	struct virtblk_req *vbr;
-
-	vbr = mempool_alloc(vblk->pool, gfp_mask);
-	if (!vbr)
-		return NULL;
-
-	vbr->vblk = vblk;
-	if (use_bio)
-		sg_init_table(vbr->sg, vblk->sg_elems);
-
-	return vbr;
-}
-
 static int __virtblk_add_req(struct virtqueue *vq,
 			     struct virtblk_req *vbr,
 			     struct scatterlist *data_sg,
@@ -143,83 +110,8 @@ static int __virtblk_add_req(struct virtqueue *vq,
 	return virtqueue_add_sgs(vq, sgs, num_out, num_in, vbr, GFP_ATOMIC);
 }
 
-static void virtblk_add_req(struct virtblk_req *vbr, bool have_data)
-{
-	struct virtio_blk *vblk = vbr->vblk;
-	DEFINE_WAIT(wait);
-	int ret;
-
-	spin_lock_irq(vblk->disk->queue->queue_lock);
-	while (unlikely((ret = __virtblk_add_req(vblk->vq, vbr, vbr->sg,
-						 have_data)) < 0)) {
-		prepare_to_wait_exclusive(&vblk->queue_wait, &wait,
-					  TASK_UNINTERRUPTIBLE);
-
-		spin_unlock_irq(vblk->disk->queue->queue_lock);
-		io_schedule();
-		spin_lock_irq(vblk->disk->queue->queue_lock);
-
-		finish_wait(&vblk->queue_wait, &wait);
-	}
-
-	virtqueue_kick(vblk->vq);
-	spin_unlock_irq(vblk->disk->queue->queue_lock);
-}
-
-static void virtblk_bio_send_flush(struct virtblk_req *vbr)
-{
-	vbr->flags |= VBLK_IS_FLUSH;
-	vbr->out_hdr.type = VIRTIO_BLK_T_FLUSH;
-	vbr->out_hdr.sector = 0;
-	vbr->out_hdr.ioprio = 0;
-
-	virtblk_add_req(vbr, false);
-}
-
-static void virtblk_bio_send_data(struct virtblk_req *vbr)
-{
-	struct virtio_blk *vblk = vbr->vblk;
-	struct bio *bio = vbr->bio;
-	bool have_data;
-
-	vbr->flags &= ~VBLK_IS_FLUSH;
-	vbr->out_hdr.type = 0;
-	vbr->out_hdr.sector = bio->bi_sector;
-	vbr->out_hdr.ioprio = bio_prio(bio);
-
-	if (blk_bio_map_sg(vblk->disk->queue, bio, vbr->sg)) {
-		have_data = true;
-		if (bio->bi_rw & REQ_WRITE)
-			vbr->out_hdr.type |= VIRTIO_BLK_T_OUT;
-		else
-			vbr->out_hdr.type |= VIRTIO_BLK_T_IN;
-	} else
-		have_data = false;
-
-	virtblk_add_req(vbr, have_data);
-}
-
-static void virtblk_bio_send_data_work(struct work_struct *work)
-{
-	struct virtblk_req *vbr;
-
-	vbr = container_of(work, struct virtblk_req, work);
-
-	virtblk_bio_send_data(vbr);
-}
-
-static void virtblk_bio_send_flush_work(struct work_struct *work)
-{
-	struct virtblk_req *vbr;
-
-	vbr = container_of(work, struct virtblk_req, work);
-
-	virtblk_bio_send_flush(vbr);
-}
-
 static inline void virtblk_request_done(struct virtblk_req *vbr)
 {
-	struct virtio_blk *vblk = vbr->vblk;
 	struct request *req = vbr->req;
 	int error = virtblk_result(vbr);
 
@@ -231,90 +123,43 @@ static inline void virtblk_request_done(struct virtblk_req *vbr)
 		req->errors = (error != 0);
 	}
 
-	__blk_end_request_all(req, error);
-	mempool_free(vbr, vblk->pool);
-}
-
-static inline void virtblk_bio_flush_done(struct virtblk_req *vbr)
-{
-	struct virtio_blk *vblk = vbr->vblk;
-
-	if (vbr->flags & VBLK_REQ_DATA) {
-		/* Send out the actual write data */
-		INIT_WORK(&vbr->work, virtblk_bio_send_data_work);
-		queue_work(virtblk_wq, &vbr->work);
-	} else {
-		bio_endio(vbr->bio, virtblk_result(vbr));
-		mempool_free(vbr, vblk->pool);
-	}
-}
-
-static inline void virtblk_bio_data_done(struct virtblk_req *vbr)
-{
-	struct virtio_blk *vblk = vbr->vblk;
-
-	if (unlikely(vbr->flags & VBLK_REQ_FUA)) {
-		/* Send out a flush before end the bio */
-		vbr->flags &= ~VBLK_REQ_DATA;
-		INIT_WORK(&vbr->work, virtblk_bio_send_flush_work);
-		queue_work(virtblk_wq, &vbr->work);
-	} else {
-		bio_endio(vbr->bio, virtblk_result(vbr));
-		mempool_free(vbr, vblk->pool);
-	}
-}
-
-static inline void virtblk_bio_done(struct virtblk_req *vbr)
-{
-	if (unlikely(vbr->flags & VBLK_IS_FLUSH))
-		virtblk_bio_flush_done(vbr);
-	else
-		virtblk_bio_data_done(vbr);
+	blk_mq_end_io(req, error);
 }
 
 static void virtblk_done(struct virtqueue *vq)
 {
 	struct virtio_blk *vblk = vq->vdev->priv;
-	bool bio_done = false, req_done = false;
+	bool req_done = false;
 	struct virtblk_req *vbr;
 	unsigned long flags;
 	unsigned int len;
 
-	spin_lock_irqsave(vblk->disk->queue->queue_lock, flags);
+	spin_lock_irqsave(&vblk->vq_lock, flags);
 	do {
 		virtqueue_disable_cb(vq);
 		while ((vbr = virtqueue_get_buf(vblk->vq, &len)) != NULL) {
-			if (vbr->bio) {
-				virtblk_bio_done(vbr);
-				bio_done = true;
-			} else {
-				virtblk_request_done(vbr);
-				req_done = true;
-			}
+			virtblk_request_done(vbr);
+			req_done = true;
 		}
 	} while (!virtqueue_enable_cb(vq));
+	spin_unlock_irqrestore(&vblk->vq_lock, flags);
+
 	/* In case queue is stopped waiting for more buffers. */
 	if (req_done)
-		blk_start_queue(vblk->disk->queue);
-	spin_unlock_irqrestore(vblk->disk->queue->queue_lock, flags);
-
-	if (bio_done)
-		wake_up(&vblk->queue_wait);
+		blk_mq_start_stopped_hw_queues(vblk->disk->queue);
 }
 
-static bool do_req(struct request_queue *q, struct virtio_blk *vblk,
-		   struct request *req)
+static int virtio_queue_rq(struct blk_mq_hw_ctx *hctx, struct request *req)
 {
+	struct virtio_blk *vblk = hctx->queue->queuedata;
+	struct virtblk_req *vbr = req->special;
+	unsigned long flags;
 	unsigned int num;
-	struct virtblk_req *vbr;
+	const bool last = (req->cmd_flags & REQ_END) != 0;
 
-	vbr = virtblk_alloc_req(vblk, GFP_ATOMIC);
-	if (!vbr)
-		/* When another request finishes we'll try again. */
-		return false;
+	BUG_ON(req->nr_phys_segments + 2 > vblk->sg_elems);
 
 	vbr->req = req;
-	vbr->bio = NULL;
 	if (req->cmd_flags & REQ_FLUSH) {
 		vbr->out_hdr.type = VIRTIO_BLK_T_FLUSH;
 		vbr->out_hdr.sector = 0;
@@ -342,7 +187,7 @@ static bool do_req(struct request_queue *q, struct virtio_blk *vblk,
 		}
 	}
 
-	num = blk_rq_map_sg(q, vbr->req, vblk->sg);
+	num = blk_rq_map_sg(hctx->queue, vbr->req, vbr->sg);
 	if (num) {
 		if (rq_data_dir(vbr->req) == WRITE)
 			vbr->out_hdr.type |= VIRTIO_BLK_T_OUT;
@@ -350,63 +195,18 @@ static bool do_req(struct request_queue *q, struct virtio_blk *vblk,
 			vbr->out_hdr.type |= VIRTIO_BLK_T_IN;
 	}
 
-	if (__virtblk_add_req(vblk->vq, vbr, vblk->sg, num) < 0) {
-		mempool_free(vbr, vblk->pool);
-		return false;
-	}
-
-	return true;
-}
-
-static void virtblk_request(struct request_queue *q)
-{
-	struct virtio_blk *vblk = q->queuedata;
-	struct request *req;
-	unsigned int issued = 0;
-
-	while ((req = blk_peek_request(q)) != NULL) {
-		BUG_ON(req->nr_phys_segments + 2 > vblk->sg_elems);
-
-		/* If this request fails, stop queue and wait for something to
-		   finish to restart it. */
-		if (!do_req(q, vblk, req)) {
-			blk_stop_queue(q);
-			break;
-		}
-		blk_start_request(req);
-		issued++;
-	}
-
-	if (issued)
+	spin_lock_irqsave(&vblk->vq_lock, flags);
+	if (__virtblk_add_req(vblk->vq, vbr, vbr->sg, num) < 0) {
+		spin_unlock_irqrestore(&vblk->vq_lock, flags);
+		blk_mq_stop_hw_queue(hctx);
 		virtqueue_kick(vblk->vq);
-}
-
-static void virtblk_make_request(struct request_queue *q, struct bio *bio)
-{
-	struct virtio_blk *vblk = q->queuedata;
-	struct virtblk_req *vbr;
-
-	BUG_ON(bio->bi_phys_segments + 2 > vblk->sg_elems);
-
-	vbr = virtblk_alloc_req(vblk, GFP_NOIO);
-	if (!vbr) {
-		bio_endio(bio, -ENOMEM);
-		return;
+		return BLK_MQ_RQ_QUEUE_BUSY;
 	}
+	spin_unlock_irqrestore(&vblk->vq_lock, flags);
 
-	vbr->bio = bio;
-	vbr->flags = 0;
-	if (bio->bi_rw & REQ_FLUSH)
-		vbr->flags |= VBLK_REQ_FLUSH;
-	if (bio->bi_rw & REQ_FUA)
-		vbr->flags |= VBLK_REQ_FUA;
-	if (bio->bi_size)
-		vbr->flags |= VBLK_REQ_DATA;
-
-	if (unlikely(vbr->flags & VBLK_REQ_FLUSH))
-		virtblk_bio_send_flush(vbr);
-	else
-		virtblk_bio_send_data(vbr);
+	if (last)
+		virtqueue_kick(vblk->vq);
+	return BLK_MQ_RQ_QUEUE_OK;
 }
 
 /* return id (s/n) string for *disk to *id_str
@@ -680,12 +480,35 @@ static const struct device_attribute dev_attr_cache_type_rw =
 	__ATTR(cache_type, S_IRUGO|S_IWUSR,
 	       virtblk_cache_type_show, virtblk_cache_type_store);
 
+static struct blk_mq_ops virtio_mq_ops = {
+	.queue_rq	= virtio_queue_rq,
+	.map_queue	= blk_mq_map_queue,
+	.alloc_hctx	= blk_mq_alloc_single_hw_queue,
+	.free_hctx	= blk_mq_free_single_hw_queue,
+};
+
+static struct blk_mq_reg virtio_mq_reg = {
+	.ops		= &virtio_mq_ops,
+	.nr_hw_queues	= 1,
+	.queue_depth	= 64,
+	.numa_node	= NUMA_NO_NODE,
+	.flags		= BLK_MQ_F_SHOULD_MERGE,
+};
+
+static void virtblk_init_vbr(void *data, struct blk_mq_hw_ctx *hctx,
+			     struct request *rq, unsigned int nr)
+{
+	struct virtio_blk *vblk = data;
+	struct virtblk_req *vbr = rq->special;
+
+	sg_init_table(vbr->sg, vblk->sg_elems);
+}
+
 static int virtblk_probe(struct virtio_device *vdev)
 {
 	struct virtio_blk *vblk;
 	struct request_queue *q;
 	int err, index;
-	int pool_size;
 
 	u64 cap;
 	u32 v, blk_size, sg_elems, opt_io_size;
@@ -709,17 +532,14 @@ static int virtblk_probe(struct virtio_device *vdev)
 
 	/* We need an extra sg elements at head and tail. */
 	sg_elems += 2;
-	vdev->priv = vblk = kmalloc(sizeof(*vblk) +
-				    sizeof(vblk->sg[0]) * sg_elems, GFP_KERNEL);
+	vdev->priv = vblk = kmalloc(sizeof(*vblk), GFP_KERNEL);
 	if (!vblk) {
 		err = -ENOMEM;
 		goto out_free_index;
 	}
 
-	init_waitqueue_head(&vblk->queue_wait);
 	vblk->vdev = vdev;
 	vblk->sg_elems = sg_elems;
-	sg_init_table(vblk->sg, vblk->sg_elems);
 	mutex_init(&vblk->config_lock);
 
 	INIT_WORK(&vblk->config_work, virtblk_config_changed_work);
@@ -728,31 +548,27 @@ static int virtblk_probe(struct virtio_device *vdev)
 	err = init_vq(vblk);
 	if (err)
 		goto out_free_vblk;
-
-	pool_size = sizeof(struct virtblk_req);
-	if (use_bio)
-		pool_size += sizeof(struct scatterlist) * sg_elems;
-	vblk->pool = mempool_create_kmalloc_pool(1, pool_size);
-	if (!vblk->pool) {
-		err = -ENOMEM;
-		goto out_free_vq;
-	}
+	spin_lock_init(&vblk->vq_lock);
 
 	/* FIXME: How many partitions?  How long is a piece of string? */
 	vblk->disk = alloc_disk(1 << PART_BITS);
 	if (!vblk->disk) {
 		err = -ENOMEM;
-		goto out_mempool;
+		goto out_free_vq;
 	}
 
-	q = vblk->disk->queue = blk_init_queue(virtblk_request, NULL);
+	virtio_mq_reg.cmd_size =
+		sizeof(struct virtblk_req) +
+		sizeof(struct scatterlist) * sg_elems;
+
+	q = vblk->disk->queue = blk_mq_init_queue(&virtio_mq_reg, vblk);
 	if (!q) {
 		err = -ENOMEM;
 		goto out_put_disk;
 	}
 
-	if (use_bio)
-		blk_queue_make_request(q, virtblk_make_request);
+	blk_mq_init_commands(q, virtblk_init_vbr, vblk);
+
 	q->queuedata = vblk;
 
 	virtblk_name_format("vd", index, vblk->disk->disk_name, DISK_NAME_LEN);
@@ -857,8 +673,6 @@ out_del_disk:
 	blk_cleanup_queue(vblk->disk->queue);
 out_put_disk:
 	put_disk(vblk->disk);
-out_mempool:
-	mempool_destroy(vblk->pool);
 out_free_vq:
 	vdev->config->del_vqs(vdev);
 out_free_vblk:
@@ -890,7 +704,6 @@ static void virtblk_remove(struct virtio_device *vdev)
 
 	refc = atomic_read(&disk_to_dev(vblk->disk)->kobj.kref.refcount);
 	put_disk(vblk->disk);
-	mempool_destroy(vblk->pool);
 	vdev->config->del_vqs(vdev);
 	kfree(vblk);
 
@@ -914,10 +727,7 @@ static int virtblk_freeze(struct virtio_device *vdev)
 
 	flush_work(&vblk->config_work);
 
-	spin_lock_irq(vblk->disk->queue->queue_lock);
-	blk_stop_queue(vblk->disk->queue);
-	spin_unlock_irq(vblk->disk->queue->queue_lock);
-	blk_sync_queue(vblk->disk->queue);
+	blk_mq_stop_hw_queues(vblk->disk->queue);
 
 	vdev->config->del_vqs(vdev);
 	return 0;
@@ -930,11 +740,9 @@ static int virtblk_restore(struct virtio_device *vdev)
 
 	vblk->config_enable = true;
 	ret = init_vq(vdev->priv);
-	if (!ret) {
-		spin_lock_irq(vblk->disk->queue->queue_lock);
-		blk_start_queue(vblk->disk->queue);
-		spin_unlock_irq(vblk->disk->queue->queue_lock);
-	}
+	if (!ret)
+		blk_mq_start_stopped_hw_queues(vblk->disk->queue);
+
 	return ret;
 }
 #endif
-- 
cgit 


From 32b8544296b944b204b33f9837701d4d0b9adefe Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 14 Nov 2013 15:35:46 +0100
Subject: ALSA: jack: Unregister input device at disconnection

The recent change in sysfs triggered a kernel WARNING at unloading a
sound driver like

  WARNING: CPU: 3 PID: 2247 at fs/sysfs/group.c:214 sysfs_remove_group+0xe8/0xf0()
  sysfs group ffffffff81ab7b20 not found for kobject 'event14'

for each jack instance.  It's because the unregistration of jack input
device is done in dev_free callback, which is called after
snd_card_disconnect().  Since device_unregister(card->card_dev) is
called in snd_card_disconnect(), the whole sysfs entries belonging to
card->card_dev have been already removed recursively.  Thus this
results in a warning as input_unregister_device() yet tries to
unregister the already removed sysfs entry.

For fixing this mess, we need to unregister the jack input device at
dev_disconnect callback so that it's called before unregistering the
card->card_dev.

Reviwed-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/core/jack.c | 19 ++++++++++++++++---
 1 file changed, 16 insertions(+), 3 deletions(-)

diff --git a/sound/core/jack.c b/sound/core/jack.c
index b35fe7345c20..8658578eb584 100644
--- a/sound/core/jack.c
+++ b/sound/core/jack.c
@@ -34,12 +34,12 @@ static int jack_switch_types[SND_JACK_SWITCH_TYPES] = {
 	SW_LINEIN_INSERT,
 };
 
-static int snd_jack_dev_free(struct snd_device *device)
+static int snd_jack_dev_disconnect(struct snd_device *device)
 {
 	struct snd_jack *jack = device->device_data;
 
-	if (jack->private_free)
-		jack->private_free(jack);
+	if (!jack->input_dev)
+		return 0;
 
 	/* If the input device is registered with the input subsystem
 	 * then we need to use a different deallocator. */
@@ -47,6 +47,18 @@ static int snd_jack_dev_free(struct snd_device *device)
 		input_unregister_device(jack->input_dev);
 	else
 		input_free_device(jack->input_dev);
+	jack->input_dev = NULL;
+	return 0;
+}
+
+static int snd_jack_dev_free(struct snd_device *device)
+{
+	struct snd_jack *jack = device->device_data;
+
+	if (jack->private_free)
+		jack->private_free(jack);
+
+	snd_jack_dev_disconnect(device);
 
 	kfree(jack->id);
 	kfree(jack);
@@ -110,6 +122,7 @@ int snd_jack_new(struct snd_card *card, const char *id, int type,
 	static struct snd_device_ops ops = {
 		.dev_free = snd_jack_dev_free,
 		.dev_register = snd_jack_dev_register,
+		.dev_disconnect = snd_jack_dev_disconnect,
 	};
 
 	jack = kzalloc(sizeof(struct snd_jack), GFP_KERNEL);
-- 
cgit 


From e310718d0e83aeb9969264dc577c45db16d9104d Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Thu, 14 Nov 2013 08:25:24 +0100
Subject: tools/perf/build: Fix feature-libunwind-debug-frame handling

Set feature-libunwind-debug-frame. We don't want it in
CORE_FEATURE_TESTS because it's not the generic case, but we
need to set it in the !feature-libunwind case.

Also, because x86 distributions typically don't have
dwarf_find_debug_frame() unwinding method:

  test-libunwind-debug-frame.c:(.text+0x31): undefined reference to `_Ux86_64_dwarf_find_debug_frame'

Restrict this new API to ARM for the time being.

With this patch test-all.c works again, so repeat perf builds
are  fast again:

  comet:~/tip> perf stat --null --repeat 5 make -C tools/perf/
  [...]

       0,452899660 seconds time elapsed                                          ( +-  0,11% )

While with before it was:

  comet:~/tip> perf stat --null --repeat 5 make -C tools/perf/
  [...]

       1,674001829 seconds time elapsed                                          ( +-  0,16% )

[ Includes fix to config/feature-checks/Makefile from Will Deacon. ]

Tested-by: Will Deacon <will.deacon@arm.com>
Tested-by: Jean Pihet <jean.pihet@linaro.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lkml.kernel.org/n/tip-scsoctqzmou3rpkixCHezy9e@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 tools/perf/config/Makefile                  | 10 ++++++++--
 tools/perf/config/feature-checks/Makefile   |  3 +++
 tools/perf/config/feature-checks/test-all.c |  4 ----
 3 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index 861379ec7632..f7d11a811c74 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -329,8 +329,14 @@ ifndef NO_LIBUNWIND
     msg := $(warning No libunwind found, disabling post unwind support. Please install libunwind-dev[el] >= 1.1);
     NO_LIBUNWIND := 1
   else
-    ifneq ($(feature-libunwind-debug-frame), 1)
-      msg := $(warning No debug_frame support found in libunwind);
+    ifeq ($(ARCH),arm)
+      $(call feature_check,libunwind-debug-frame)
+      ifneq ($(feature-libunwind-debug-frame), 1)
+        msg := $(warning No debug_frame support found in libunwind);
+        CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
+      endif
+    else
+      # non-ARM has no dwarf_find_debug_frame() function:
       CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
     endif
   endif
diff --git a/tools/perf/config/feature-checks/Makefile b/tools/perf/config/feature-checks/Makefile
index e8e195f49a4e..87e790017c69 100644
--- a/tools/perf/config/feature-checks/Makefile
+++ b/tools/perf/config/feature-checks/Makefile
@@ -76,6 +76,9 @@ test-libnuma:
 test-libunwind:
 	$(BUILD) $(LIBUNWIND_LIBS) -lelf
 
+test-libunwind-debug-frame:
+	$(BUILD) $(LIBUNWIND_LIBS) -lelf
+
 test-libaudit:
 	$(BUILD) -laudit
 
diff --git a/tools/perf/config/feature-checks/test-all.c b/tools/perf/config/feature-checks/test-all.c
index 799865b60772..59e7a705e146 100644
--- a/tools/perf/config/feature-checks/test-all.c
+++ b/tools/perf/config/feature-checks/test-all.c
@@ -49,10 +49,6 @@
 # include "test-libunwind.c"
 #undef main
 
-#define main main_test_libunwind_debug_frame
-# include "test-libunwind-debug-frame.c"
-#undef main
-
 #define main main_test_libaudit
 # include "test-libaudit.c"
 #undef main
-- 
cgit 


From 50bfcf2df2fadf77e143d6099150e6fa7ef4d78c Mon Sep 17 00:00:00 2001
From: Nicolin Chen <b42378@freescale.com>
Date: Thu, 14 Nov 2013 11:59:21 +0800
Subject: ASoC: wm8962: Turn on regcache_cache_only before disabling regulator

It's safer to turn on regcache_cache_only before disabling regulator since
the driver will turn off the regcache_cache_only after enabling regulator.

If we remain cache_only false, some command like 'amixer cset' would get
failure if being run before wm8962_resume().

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
---
 sound/soc/codecs/wm8962.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/codecs/wm8962.c b/sound/soc/codecs/wm8962.c
index 2bf9ee7c5407..174149352525 100644
--- a/sound/soc/codecs/wm8962.c
+++ b/sound/soc/codecs/wm8962.c
@@ -3720,6 +3720,8 @@ static int wm8962_i2c_probe(struct i2c_client *i2c,
 	if (ret < 0)
 		goto err_enable;
 
+	regcache_cache_only(wm8962->regmap, true);
+
 	/* The drivers should power up as needed */
 	regulator_bulk_disable(ARRAY_SIZE(wm8962->supplies), wm8962->supplies);
 
-- 
cgit 


From 85b4fab2696000369176dd222dc3001d4a7e0fa6 Mon Sep 17 00:00:00 2001
From: Maxime COQUELIN <maxime.coquelin@st.com>
Date: Wed, 6 Nov 2013 09:25:12 +0100
Subject: i2c: i2c-st: Add ST I2C controller

This patch adds support to SSC (Synchronous Serial Controller)
I2C driver. This IP also supports SPI protocol, but this is not
the aim of this driver.

This IP is embedded in all ST SoCs for Set-top box platorms, and
supports I2C Standard and Fast modes.

Signed-off-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 Documentation/devicetree/bindings/i2c/i2c-st.txt |  41 ++
 drivers/i2c/busses/Kconfig                       |  10 +
 drivers/i2c/busses/Makefile                      |   1 +
 drivers/i2c/busses/i2c-st.c                      | 872 +++++++++++++++++++++++
 4 files changed, 924 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/i2c/i2c-st.txt
 create mode 100644 drivers/i2c/busses/i2c-st.c

diff --git a/Documentation/devicetree/bindings/i2c/i2c-st.txt b/Documentation/devicetree/bindings/i2c/i2c-st.txt
new file mode 100644
index 000000000000..437e0db3823c
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-st.txt
@@ -0,0 +1,41 @@
+ST SSC binding, for I2C mode operation
+
+Required properties :
+- compatible : Must be "st,comms-ssc-i2c" or "st,comms-ssc4-i2c"
+- reg : Offset and length of the register set for the device
+- interrupts : the interrupt specifier
+- clock-names: Must contain "ssc".
+- clocks: Must contain an entry for each name in clock-names. See the common
+  clock bindings.
+- A pinctrl state named "default" must be defined to set pins in mode of
+  operation for I2C transfer.
+
+Optional properties :
+- clock-frequency : Desired I2C bus clock frequency in Hz. If not specified,
+  the default 100 kHz frequency will be used. As only Normal and Fast modes
+  are supported, possible values are 100000 and 400000.
+- st,i2c-min-scl-pulse-width-us : The minimum valid SCL pulse width that is
+  allowed through the deglitch circuit. In units of us.
+- st,i2c-min-sda-pulse-width-us : The minimum valid SDA pulse width that is
+  allowed through the deglitch circuit. In units of us.
+- A pinctrl state named "idle" could be defined to set pins in idle state
+  when I2C instance is not performing a transfer.
+- A pinctrl state named "sleep" could be defined to set pins in sleep state
+  when driver enters in suspend.
+
+
+
+Example :
+
+i2c0: i2c@fed40000 {
+	compatible	= "st,comms-ssc4-i2c";
+	reg		= <0xfed40000 0x110>;
+	interrupts	=  <GIC_SPI 187 IRQ_TYPE_LEVEL_HIGH>;
+	clocks		= <&CLK_S_ICN_REG_0>;
+	clock-names	= "ssc";
+	clock-frequency = <400000>;
+	pinctrl-names	= "default";
+	pinctrl-0	= <&pinctrl_i2c0_default>;
+	st,i2c-min-scl-pulse-width-us = <0>;
+	st,i2c-min-sda-pulse-width-us = <5>;
+};
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 80e55305656f..012646215e7e 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -702,6 +702,16 @@ config I2C_SIRF
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-sirf.
 
+config I2C_ST
+	tristate "STMicroelectronics SSC I2C support"
+	depends on ARCH_STI
+	help
+	  Enable this option to add support for STMicroelectronics SoCs
+	  hardware SSC (Synchronous Serial Controller) as an I2C controller.
+
+	  This driver can also be built as module. If so, the module
+	  will be called i2c-st.
+
 config I2C_STU300
 	tristate "ST Microelectronics DDC I2C interface"
 	depends on MACH_U300
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index d1ad3712d905..e129486c828f 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -69,6 +69,7 @@ obj-$(CONFIG_I2C_SH7760)	+= i2c-sh7760.o
 obj-$(CONFIG_I2C_SH_MOBILE)	+= i2c-sh_mobile.o
 obj-$(CONFIG_I2C_SIMTEC)	+= i2c-simtec.o
 obj-$(CONFIG_I2C_SIRF)		+= i2c-sirf.o
+obj-$(CONFIG_I2C_ST)		+= i2c-st.o
 obj-$(CONFIG_I2C_STU300)	+= i2c-stu300.o
 obj-$(CONFIG_I2C_TEGRA)		+= i2c-tegra.o
 obj-$(CONFIG_I2C_VERSATILE)	+= i2c-versatile.o
diff --git a/drivers/i2c/busses/i2c-st.c b/drivers/i2c/busses/i2c-st.c
new file mode 100644
index 000000000000..fa57c5e57efa
--- /dev/null
+++ b/drivers/i2c/busses/i2c-st.c
@@ -0,0 +1,872 @@
+/*
+ * Copyright (C) 2013 STMicroelectronics
+ *
+ * I2C master mode controller driver, used in STMicroelectronics devices.
+ *
+ * Author: Maxime Coquelin <maxime.coquelin@st.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/err.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+
+/* SSC registers */
+#define SSC_BRG				0x000
+#define SSC_TBUF			0x004
+#define SSC_RBUF			0x008
+#define SSC_CTL				0x00C
+#define SSC_IEN				0x010
+#define SSC_STA				0x014
+#define SSC_I2C				0x018
+#define SSC_SLAD			0x01C
+#define SSC_REP_START_HOLD		0x020
+#define SSC_START_HOLD			0x024
+#define SSC_REP_START_SETUP		0x028
+#define SSC_DATA_SETUP			0x02C
+#define SSC_STOP_SETUP			0x030
+#define SSC_BUS_FREE			0x034
+#define SSC_TX_FSTAT			0x038
+#define SSC_RX_FSTAT			0x03C
+#define SSC_PRE_SCALER_BRG		0x040
+#define SSC_CLR				0x080
+#define SSC_NOISE_SUPP_WIDTH		0x100
+#define SSC_PRSCALER			0x104
+#define SSC_NOISE_SUPP_WIDTH_DATAOUT	0x108
+#define SSC_PRSCALER_DATAOUT		0x10c
+
+/* SSC Control */
+#define SSC_CTL_DATA_WIDTH_9		0x8
+#define SSC_CTL_DATA_WIDTH_MSK		0xf
+#define SSC_CTL_BM			0xf
+#define SSC_CTL_HB			BIT(4)
+#define SSC_CTL_PH			BIT(5)
+#define SSC_CTL_PO			BIT(6)
+#define SSC_CTL_SR			BIT(7)
+#define SSC_CTL_MS			BIT(8)
+#define SSC_CTL_EN			BIT(9)
+#define SSC_CTL_LPB			BIT(10)
+#define SSC_CTL_EN_TX_FIFO		BIT(11)
+#define SSC_CTL_EN_RX_FIFO		BIT(12)
+#define SSC_CTL_EN_CLST_RX		BIT(13)
+
+/* SSC Interrupt Enable */
+#define SSC_IEN_RIEN			BIT(0)
+#define SSC_IEN_TIEN			BIT(1)
+#define SSC_IEN_TEEN			BIT(2)
+#define SSC_IEN_REEN			BIT(3)
+#define SSC_IEN_PEEN			BIT(4)
+#define SSC_IEN_AASEN			BIT(6)
+#define SSC_IEN_STOPEN			BIT(7)
+#define SSC_IEN_ARBLEN			BIT(8)
+#define SSC_IEN_NACKEN			BIT(10)
+#define SSC_IEN_REPSTRTEN		BIT(11)
+#define SSC_IEN_TX_FIFO_HALF		BIT(12)
+#define SSC_IEN_RX_FIFO_HALF_FULL	BIT(14)
+
+/* SSC Status */
+#define SSC_STA_RIR			BIT(0)
+#define SSC_STA_TIR			BIT(1)
+#define SSC_STA_TE			BIT(2)
+#define SSC_STA_RE			BIT(3)
+#define SSC_STA_PE			BIT(4)
+#define SSC_STA_CLST			BIT(5)
+#define SSC_STA_AAS			BIT(6)
+#define SSC_STA_STOP			BIT(7)
+#define SSC_STA_ARBL			BIT(8)
+#define SSC_STA_BUSY			BIT(9)
+#define SSC_STA_NACK			BIT(10)
+#define SSC_STA_REPSTRT			BIT(11)
+#define SSC_STA_TX_FIFO_HALF		BIT(12)
+#define SSC_STA_TX_FIFO_FULL		BIT(13)
+#define SSC_STA_RX_FIFO_HALF		BIT(14)
+
+/* SSC I2C Control */
+#define SSC_I2C_I2CM			BIT(0)
+#define SSC_I2C_STRTG			BIT(1)
+#define SSC_I2C_STOPG			BIT(2)
+#define SSC_I2C_ACKG			BIT(3)
+#define SSC_I2C_AD10			BIT(4)
+#define SSC_I2C_TXENB			BIT(5)
+#define SSC_I2C_REPSTRTG		BIT(11)
+#define SSC_I2C_SLAVE_DISABLE		BIT(12)
+
+/* SSC Tx FIFO Status */
+#define SSC_TX_FSTAT_STATUS		0x07
+
+/* SSC Rx FIFO Status */
+#define SSC_RX_FSTAT_STATUS		0x07
+
+/* SSC Clear bit operation */
+#define SSC_CLR_SSCAAS			BIT(6)
+#define SSC_CLR_SSCSTOP			BIT(7)
+#define SSC_CLR_SSCARBL			BIT(8)
+#define SSC_CLR_NACK			BIT(10)
+#define SSC_CLR_REPSTRT			BIT(11)
+
+/* SSC Clock Prescaler */
+#define SSC_PRSC_VALUE			0x0f
+
+
+#define SSC_TXFIFO_SIZE			0x8
+#define SSC_RXFIFO_SIZE			0x8
+
+enum st_i2c_mode {
+	I2C_MODE_STANDARD,
+	I2C_MODE_FAST,
+	I2C_MODE_END,
+};
+
+/**
+ * struct st_i2c_timings - per-Mode tuning parameters
+ * @rate: I2C bus rate
+ * @rep_start_hold: I2C repeated start hold time requirement
+ * @rep_start_setup: I2C repeated start set up time requirement
+ * @start_hold: I2C start hold time requirement
+ * @data_setup_time: I2C data set up time requirement
+ * @stop_setup_time: I2C stop set up time requirement
+ * @bus_free_time: I2C bus free time requirement
+ * @sda_pulse_min_limit: I2C SDA pulse mini width limit
+ */
+struct st_i2c_timings {
+	u32 rate;
+	u32 rep_start_hold;
+	u32 rep_start_setup;
+	u32 start_hold;
+	u32 data_setup_time;
+	u32 stop_setup_time;
+	u32 bus_free_time;
+	u32 sda_pulse_min_limit;
+};
+
+/**
+ * struct st_i2c_client - client specific data
+ * @addr: 8-bit slave addr, including r/w bit
+ * @count: number of bytes to be transfered
+ * @xfered: number of bytes already transferred
+ * @buf: data buffer
+ * @result: result of the transfer
+ * @stop: last I2C msg to be sent, i.e. STOP to be generated
+ */
+struct st_i2c_client {
+	u8	addr;
+	u32	count;
+	u32	xfered;
+	u8	*buf;
+	int	result;
+	bool	stop;
+};
+
+/**
+ * struct st_i2c_dev - private data of the controller
+ * @adap: I2C adapter for this controller
+ * @dev: device for this controller
+ * @base: virtual memory area
+ * @complete: completion of I2C message
+ * @irq: interrupt line for th controller
+ * @clk: hw ssc block clock
+ * @mode: I2C mode of the controller. Standard or Fast only supported
+ * @scl_min_width_us: SCL line minimum pulse width in us
+ * @sda_min_width_us: SDA line minimum pulse width in us
+ * @client: I2C transfert information
+ * @busy: I2C transfer on-going
+ */
+struct st_i2c_dev {
+	struct i2c_adapter	adap;
+	struct device		*dev;
+	void __iomem		*base;
+	struct completion	complete;
+	int			irq;
+	struct clk		*clk;
+	int			mode;
+	u32			scl_min_width_us;
+	u32			sda_min_width_us;
+	struct st_i2c_client	client;
+	bool			busy;
+};
+
+static inline void st_i2c_set_bits(void __iomem *reg, u32 mask)
+{
+	writel_relaxed(readl_relaxed(reg) | mask, reg);
+}
+
+static inline void st_i2c_clr_bits(void __iomem *reg, u32 mask)
+{
+	writel_relaxed(readl_relaxed(reg) & ~mask, reg);
+}
+
+/* From I2C Specifications v0.5 */
+static struct st_i2c_timings i2c_timings[] = {
+	[I2C_MODE_STANDARD] = {
+		.rate			= 100000,
+		.rep_start_hold		= 4000,
+		.rep_start_setup	= 4700,
+		.start_hold		= 4000,
+		.data_setup_time	= 250,
+		.stop_setup_time	= 4000,
+		.bus_free_time		= 4700,
+	},
+	[I2C_MODE_FAST] = {
+		.rate			= 400000,
+		.rep_start_hold		= 600,
+		.rep_start_setup	= 600,
+		.start_hold		= 600,
+		.data_setup_time	= 100,
+		.stop_setup_time	= 600,
+		.bus_free_time		= 1300,
+	},
+};
+
+static void st_i2c_flush_rx_fifo(struct st_i2c_dev *i2c_dev)
+{
+	int count, i;
+
+	/*
+	 * Counter only counts up to 7 but fifo size is 8...
+	 * When fifo is full, counter is 0 and RIR bit of status register is
+	 * set
+	 */
+	if (readl_relaxed(i2c_dev->base + SSC_STA) & SSC_STA_RIR)
+		count = SSC_RXFIFO_SIZE;
+	else
+		count = readl_relaxed(i2c_dev->base + SSC_RX_FSTAT) &
+			SSC_RX_FSTAT_STATUS;
+
+	for (i = 0; i < count; i++)
+		readl_relaxed(i2c_dev->base + SSC_RBUF);
+}
+
+static void st_i2c_soft_reset(struct st_i2c_dev *i2c_dev)
+{
+	/*
+	 * FIFO needs to be emptied before reseting the IP,
+	 * else the controller raises a BUSY error.
+	 */
+	st_i2c_flush_rx_fifo(i2c_dev);
+
+	st_i2c_set_bits(i2c_dev->base + SSC_CTL, SSC_CTL_SR);
+	st_i2c_clr_bits(i2c_dev->base + SSC_CTL, SSC_CTL_SR);
+}
+
+/**
+ * st_i2c_hw_config() - Prepare SSC block, calculate and apply tuning timings
+ * @i2c_dev: Controller's private data
+ */
+static void st_i2c_hw_config(struct st_i2c_dev *i2c_dev)
+{
+	unsigned long rate;
+	u32 val, ns_per_clk;
+	struct st_i2c_timings *t = &i2c_timings[i2c_dev->mode];
+
+	st_i2c_soft_reset(i2c_dev);
+
+	val = SSC_CLR_REPSTRT | SSC_CLR_NACK | SSC_CLR_SSCARBL |
+		SSC_CLR_SSCAAS | SSC_CLR_SSCSTOP;
+	writel_relaxed(val, i2c_dev->base + SSC_CLR);
+
+	/* SSC Control register setup */
+	val = SSC_CTL_PO | SSC_CTL_PH | SSC_CTL_HB | SSC_CTL_DATA_WIDTH_9;
+	writel_relaxed(val, i2c_dev->base + SSC_CTL);
+
+	rate = clk_get_rate(i2c_dev->clk);
+	ns_per_clk = 1000000000 / rate;
+
+	/* Baudrate */
+	val = rate / (2 * t->rate);
+	writel_relaxed(val, i2c_dev->base + SSC_BRG);
+
+	/* Pre-scaler baudrate */
+	writel_relaxed(1, i2c_dev->base + SSC_PRE_SCALER_BRG);
+
+	/* Enable I2C mode */
+	writel_relaxed(SSC_I2C_I2CM, i2c_dev->base + SSC_I2C);
+
+	/* Repeated start hold time */
+	val = t->rep_start_hold / ns_per_clk;
+	writel_relaxed(val, i2c_dev->base + SSC_REP_START_HOLD);
+
+	/* Repeated start set up time */
+	val = t->rep_start_setup / ns_per_clk;
+	writel_relaxed(val, i2c_dev->base + SSC_REP_START_SETUP);
+
+	/* Start hold time */
+	val = t->start_hold / ns_per_clk;
+	writel_relaxed(val, i2c_dev->base + SSC_START_HOLD);
+
+	/* Data set up time */
+	val = t->data_setup_time / ns_per_clk;
+	writel_relaxed(val, i2c_dev->base + SSC_DATA_SETUP);
+
+	/* Stop set up time */
+	val = t->stop_setup_time / ns_per_clk;
+	writel_relaxed(val, i2c_dev->base + SSC_STOP_SETUP);
+
+	/* Bus free time */
+	val = t->bus_free_time / ns_per_clk;
+	writel_relaxed(val, i2c_dev->base + SSC_BUS_FREE);
+
+	/* Prescalers set up */
+	val = rate / 10000000;
+	writel_relaxed(val, i2c_dev->base + SSC_PRSCALER);
+	writel_relaxed(val, i2c_dev->base + SSC_PRSCALER_DATAOUT);
+
+	/* Noise suppression witdh */
+	val = i2c_dev->scl_min_width_us * rate / 100000000;
+	writel_relaxed(val, i2c_dev->base + SSC_NOISE_SUPP_WIDTH);
+
+	/* Noise suppression max output data delay width */
+	val = i2c_dev->sda_min_width_us * rate / 100000000;
+	writel_relaxed(val, i2c_dev->base + SSC_NOISE_SUPP_WIDTH_DATAOUT);
+}
+
+static int st_i2c_wait_free_bus(struct st_i2c_dev *i2c_dev)
+{
+	u32 sta;
+	int i;
+
+	for (i = 0; i < 10; i++) {
+		sta = readl_relaxed(i2c_dev->base + SSC_STA);
+		if (!(sta & SSC_STA_BUSY))
+			return 0;
+
+		usleep_range(2000, 4000);
+	}
+
+	dev_err(i2c_dev->dev, "bus not free (status = 0x%08x)\n", sta);
+
+	return -EBUSY;
+}
+
+/**
+ * st_i2c_write_tx_fifo() - Write a byte in the Tx FIFO
+ * @i2c_dev: Controller's private data
+ * @byte: Data to write in the Tx FIFO
+ */
+static inline void st_i2c_write_tx_fifo(struct st_i2c_dev *i2c_dev, u8 byte)
+{
+	u16 tbuf = byte << 1;
+
+	writel_relaxed(tbuf | 1, i2c_dev->base + SSC_TBUF);
+}
+
+/**
+ * st_i2c_wr_fill_tx_fifo() - Fill the Tx FIFO in write mode
+ * @i2c_dev: Controller's private data
+ *
+ * This functions fills the Tx FIFO with I2C transfert buffer when
+ * in write mode.
+ */
+static void st_i2c_wr_fill_tx_fifo(struct st_i2c_dev *i2c_dev)
+{
+	struct st_i2c_client *c = &i2c_dev->client;
+	u32 tx_fstat, sta;
+	int i;
+
+	sta = readl_relaxed(i2c_dev->base + SSC_STA);
+	if (sta & SSC_STA_TX_FIFO_FULL)
+		return;
+
+	tx_fstat = readl_relaxed(i2c_dev->base + SSC_TX_FSTAT);
+	tx_fstat &= SSC_TX_FSTAT_STATUS;
+
+	if (c->count < (SSC_TXFIFO_SIZE - tx_fstat))
+		i = c->count;
+	else
+		i = SSC_TXFIFO_SIZE - tx_fstat;
+
+	for (; i > 0; i--, c->count--, c->buf++)
+		st_i2c_write_tx_fifo(i2c_dev, *c->buf);
+}
+
+/**
+ * st_i2c_rd_fill_tx_fifo() - Fill the Tx FIFO in read mode
+ * @i2c_dev: Controller's private data
+ *
+ * This functions fills the Tx FIFO with fixed pattern when
+ * in read mode to trigger clock.
+ */
+static void st_i2c_rd_fill_tx_fifo(struct st_i2c_dev *i2c_dev, int max)
+{
+	struct st_i2c_client *c = &i2c_dev->client;
+	u32 tx_fstat, sta;
+	int i;
+
+	sta = readl_relaxed(i2c_dev->base + SSC_STA);
+	if (sta & SSC_STA_TX_FIFO_FULL)
+		return;
+
+	tx_fstat = readl_relaxed(i2c_dev->base + SSC_TX_FSTAT);
+	tx_fstat &= SSC_TX_FSTAT_STATUS;
+
+	if (max < (SSC_TXFIFO_SIZE - tx_fstat))
+		i = max;
+	else
+		i = SSC_TXFIFO_SIZE - tx_fstat;
+
+	for (; i > 0; i--, c->xfered++)
+		st_i2c_write_tx_fifo(i2c_dev, 0xff);
+}
+
+static void st_i2c_read_rx_fifo(struct st_i2c_dev *i2c_dev)
+{
+	struct st_i2c_client *c = &i2c_dev->client;
+	u32 i, sta;
+	u16 rbuf;
+
+	sta = readl_relaxed(i2c_dev->base + SSC_STA);
+	if (sta & SSC_STA_RIR) {
+		i = SSC_RXFIFO_SIZE;
+	} else {
+		i = readl_relaxed(i2c_dev->base + SSC_RX_FSTAT);
+		i &= SSC_RX_FSTAT_STATUS;
+	}
+
+	for (; (i > 0) && (c->count > 0); i--, c->count--) {
+		rbuf = readl_relaxed(i2c_dev->base + SSC_RBUF) >> 1;
+		*c->buf++ = (u8)rbuf & 0xff;
+	}
+
+	if (i) {
+		dev_err(i2c_dev->dev, "Unexpected %d bytes in rx fifo\n", i);
+		st_i2c_flush_rx_fifo(i2c_dev);
+	}
+}
+
+/**
+ * st_i2c_terminate_xfer() - Send either STOP or REPSTART condition
+ * @i2c_dev: Controller's private data
+ */
+static void st_i2c_terminate_xfer(struct st_i2c_dev *i2c_dev)
+{
+	struct st_i2c_client *c = &i2c_dev->client;
+
+	st_i2c_clr_bits(i2c_dev->base + SSC_IEN, SSC_IEN_TEEN);
+	st_i2c_clr_bits(i2c_dev->base + SSC_I2C, SSC_I2C_STRTG);
+
+	if (c->stop) {
+		st_i2c_set_bits(i2c_dev->base + SSC_IEN, SSC_IEN_STOPEN);
+		st_i2c_set_bits(i2c_dev->base + SSC_I2C, SSC_I2C_STOPG);
+	} else {
+		st_i2c_set_bits(i2c_dev->base + SSC_IEN, SSC_IEN_REPSTRTEN);
+		st_i2c_set_bits(i2c_dev->base + SSC_I2C, SSC_I2C_REPSTRTG);
+	}
+}
+
+/**
+ * st_i2c_handle_write() - Handle FIFO empty interrupt in case of write
+ * @i2c_dev: Controller's private data
+ */
+static void st_i2c_handle_write(struct st_i2c_dev *i2c_dev)
+{
+	struct st_i2c_client *c = &i2c_dev->client;
+
+	st_i2c_flush_rx_fifo(i2c_dev);
+
+	if (!c->count)
+		/* End of xfer, send stop or repstart */
+		st_i2c_terminate_xfer(i2c_dev);
+	else
+		st_i2c_wr_fill_tx_fifo(i2c_dev);
+}
+
+/**
+ * st_i2c_handle_write() - Handle FIFO enmpty interrupt in case of read
+ * @i2c_dev: Controller's private data
+ */
+static void st_i2c_handle_read(struct st_i2c_dev *i2c_dev)
+{
+	struct st_i2c_client *c = &i2c_dev->client;
+	u32 ien;
+
+	/* Trash the address read back */
+	if (!c->xfered) {
+		readl_relaxed(i2c_dev->base + SSC_RBUF);
+		st_i2c_clr_bits(i2c_dev->base + SSC_I2C, SSC_I2C_TXENB);
+	} else {
+		st_i2c_read_rx_fifo(i2c_dev);
+	}
+
+	if (!c->count) {
+		/* End of xfer, send stop or repstart */
+		st_i2c_terminate_xfer(i2c_dev);
+	} else if (c->count == 1) {
+		/* Penultimate byte to xfer, disable ACK gen. */
+		st_i2c_clr_bits(i2c_dev->base + SSC_I2C, SSC_I2C_ACKG);
+
+		/* Last received byte is to be handled by NACK interrupt */
+		ien = SSC_IEN_NACKEN | SSC_IEN_ARBLEN;
+		writel_relaxed(ien, i2c_dev->base + SSC_IEN);
+
+		st_i2c_rd_fill_tx_fifo(i2c_dev, c->count);
+	} else {
+		st_i2c_rd_fill_tx_fifo(i2c_dev, c->count - 1);
+	}
+}
+
+/**
+ * st_i2c_isr() - Interrupt routine
+ * @irq: interrupt number
+ * @data: Controller's private data
+ */
+static irqreturn_t st_i2c_isr_thread(int irq, void *data)
+{
+	struct st_i2c_dev *i2c_dev = data;
+	struct st_i2c_client *c = &i2c_dev->client;
+	u32 sta, ien;
+	int it;
+
+	ien = readl_relaxed(i2c_dev->base + SSC_IEN);
+	sta = readl_relaxed(i2c_dev->base + SSC_STA);
+
+	/* Use __fls() to check error bits first */
+	it = __fls(sta & ien);
+	if (it < 0) {
+		dev_dbg(i2c_dev->dev, "spurious it (sta=0x%04x, ien=0x%04x)\n",
+				sta, ien);
+		return IRQ_NONE;
+	}
+
+	switch (1 << it) {
+	case SSC_STA_TE:
+		if (c->addr & I2C_M_RD)
+			st_i2c_handle_read(i2c_dev);
+		else
+			st_i2c_handle_write(i2c_dev);
+		break;
+
+	case SSC_STA_STOP:
+	case SSC_STA_REPSTRT:
+		writel_relaxed(0, i2c_dev->base + SSC_IEN);
+		complete(&i2c_dev->complete);
+		break;
+
+	case SSC_STA_NACK:
+		writel_relaxed(SSC_CLR_NACK, i2c_dev->base + SSC_CLR);
+
+		/* Last received byte handled by NACK interrupt */
+		if ((c->addr & I2C_M_RD) && (c->count == 1) && (c->xfered)) {
+			st_i2c_handle_read(i2c_dev);
+			break;
+		}
+
+		it = SSC_IEN_STOPEN | SSC_IEN_ARBLEN;
+		writel_relaxed(it, i2c_dev->base + SSC_IEN);
+
+		st_i2c_set_bits(i2c_dev->base + SSC_I2C, SSC_I2C_STOPG);
+		c->result = -EIO;
+		break;
+
+	case SSC_STA_ARBL:
+		writel_relaxed(SSC_CLR_SSCARBL, i2c_dev->base + SSC_CLR);
+
+		it = SSC_IEN_STOPEN | SSC_IEN_ARBLEN;
+		writel_relaxed(it, i2c_dev->base + SSC_IEN);
+
+		st_i2c_set_bits(i2c_dev->base + SSC_I2C, SSC_I2C_STOPG);
+		c->result = -EIO;
+		break;
+
+	default:
+		dev_err(i2c_dev->dev,
+				"it %d unhandled (sta=0x%04x)\n", it, sta);
+	}
+
+	/*
+	 * Read IEN register to ensure interrupt mask write is effective
+	 * before re-enabling interrupt at GIC level, and thus avoid spurious
+	 * interrupts.
+	 */
+	readl(i2c_dev->base + SSC_IEN);
+
+	return IRQ_HANDLED;
+}
+
+/**
+ * st_i2c_xfer_msg() - Transfer a single I2C message
+ * @i2c_dev: Controller's private data
+ * @msg: I2C message to transfer
+ * @is_first: first message of the sequence
+ * @is_last: last message of the sequence
+ */
+static int st_i2c_xfer_msg(struct st_i2c_dev *i2c_dev, struct i2c_msg *msg,
+			    bool is_first, bool is_last)
+{
+	struct st_i2c_client *c = &i2c_dev->client;
+	u32 ctl, i2c, it;
+	unsigned long timeout;
+	int ret;
+
+	c->addr		= (u8)(msg->addr << 1);
+	c->addr		|= (msg->flags & I2C_M_RD);
+	c->buf		= msg->buf;
+	c->count	= msg->len;
+	c->xfered	= 0;
+	c->result	= 0;
+	c->stop		= is_last;
+
+	INIT_COMPLETION(i2c_dev->complete);
+
+	ctl = SSC_CTL_EN | SSC_CTL_MS |	SSC_CTL_EN_RX_FIFO | SSC_CTL_EN_TX_FIFO;
+	st_i2c_set_bits(i2c_dev->base + SSC_CTL, ctl);
+
+	i2c = SSC_I2C_TXENB;
+	if (c->addr & I2C_M_RD)
+		i2c |= SSC_I2C_ACKG;
+	st_i2c_set_bits(i2c_dev->base + SSC_I2C, i2c);
+
+	/* Write slave address */
+	st_i2c_write_tx_fifo(i2c_dev, c->addr);
+
+	/* Pre-fill Tx fifo with data in case of write */
+	if (!(c->addr & I2C_M_RD))
+		st_i2c_wr_fill_tx_fifo(i2c_dev);
+
+	it = SSC_IEN_NACKEN | SSC_IEN_TEEN | SSC_IEN_ARBLEN;
+	writel_relaxed(it, i2c_dev->base + SSC_IEN);
+
+	if (is_first) {
+		ret = st_i2c_wait_free_bus(i2c_dev);
+		if (ret)
+			return ret;
+
+		st_i2c_set_bits(i2c_dev->base + SSC_I2C, SSC_I2C_STRTG);
+	}
+
+	timeout = wait_for_completion_timeout(&i2c_dev->complete,
+			i2c_dev->adap.timeout);
+	ret = c->result;
+
+	if (!timeout) {
+		dev_err(i2c_dev->dev, "Write to slave 0x%x timed out\n",
+				c->addr);
+		ret = -ETIMEDOUT;
+	}
+
+	i2c = SSC_I2C_STOPG | SSC_I2C_REPSTRTG;
+	st_i2c_clr_bits(i2c_dev->base + SSC_I2C, i2c);
+
+	writel_relaxed(SSC_CLR_SSCSTOP | SSC_CLR_REPSTRT,
+			i2c_dev->base + SSC_CLR);
+
+	return ret;
+}
+
+/**
+ * st_i2c_xfer() - Transfer a single I2C message
+ * @i2c_adap: Adapter pointer to the controller
+ * @msgs: Pointer to data to be written.
+ * @num: Number of messages to be executed
+ */
+static int st_i2c_xfer(struct i2c_adapter *i2c_adap,
+			struct i2c_msg msgs[], int num)
+{
+	struct st_i2c_dev *i2c_dev = i2c_get_adapdata(i2c_adap);
+	int ret, i;
+
+	i2c_dev->busy = true;
+
+	ret = clk_prepare_enable(i2c_dev->clk);
+	if (ret) {
+		dev_err(i2c_dev->dev, "Failed to prepare_enable clock\n");
+		return ret;
+	}
+
+	pinctrl_pm_select_default_state(i2c_dev->dev);
+
+	st_i2c_hw_config(i2c_dev);
+
+	for (i = 0; (i < num) && !ret; i++)
+		ret = st_i2c_xfer_msg(i2c_dev, &msgs[i], i == 0, i == num - 1);
+
+	pinctrl_pm_select_idle_state(i2c_dev->dev);
+
+	clk_disable_unprepare(i2c_dev->clk);
+
+	i2c_dev->busy = false;
+
+	return (ret < 0) ? ret : i;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int st_i2c_suspend(struct device *dev)
+{
+	struct platform_device *pdev =
+		container_of(dev, struct platform_device, dev);
+	struct st_i2c_dev *i2c_dev = platform_get_drvdata(pdev);
+
+	if (i2c_dev->busy)
+		return -EBUSY;
+
+	pinctrl_pm_select_sleep_state(dev);
+
+	return 0;
+}
+
+static int st_i2c_resume(struct device *dev)
+{
+	pinctrl_pm_select_default_state(dev);
+	/* Go in idle state if available */
+	pinctrl_pm_select_idle_state(dev);
+
+	return 0;
+}
+
+static SIMPLE_DEV_PM_OPS(st_i2c_pm, st_i2c_suspend, st_i2c_resume);
+#define ST_I2C_PM	(&st_i2c_pm)
+#else
+#define ST_I2C_PM	NULL
+#endif
+
+static u32 st_i2c_func(struct i2c_adapter *adap)
+{
+	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static struct i2c_algorithm st_i2c_algo = {
+	.master_xfer = st_i2c_xfer,
+	.functionality = st_i2c_func,
+};
+
+static int st_i2c_of_get_deglitch(struct device_node *np,
+		struct st_i2c_dev *i2c_dev)
+{
+	int ret;
+
+	ret = of_property_read_u32(np, "st,i2c-min-scl-pulse-width-us",
+			&i2c_dev->scl_min_width_us);
+	if ((ret == -ENODATA) || (ret == -EOVERFLOW)) {
+		dev_err(i2c_dev->dev, "st,i2c-min-scl-pulse-width-us invalid\n");
+		return ret;
+	}
+
+	ret = of_property_read_u32(np, "st,i2c-min-sda-pulse-width-us",
+			&i2c_dev->sda_min_width_us);
+	if ((ret == -ENODATA) || (ret == -EOVERFLOW)) {
+		dev_err(i2c_dev->dev, "st,i2c-min-sda-pulse-width-us invalid\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static int st_i2c_probe(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+	struct st_i2c_dev *i2c_dev;
+	struct resource *res;
+	u32 clk_rate;
+	struct i2c_adapter *adap;
+	int ret;
+
+	i2c_dev = devm_kzalloc(&pdev->dev, sizeof(*i2c_dev), GFP_KERNEL);
+	if (!i2c_dev)
+		return -ENOMEM;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	i2c_dev->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(i2c_dev->base))
+		return PTR_ERR(i2c_dev->base);
+
+	i2c_dev->irq = irq_of_parse_and_map(np, 0);
+	if (!i2c_dev->irq) {
+		dev_err(&pdev->dev, "IRQ missing or invalid\n");
+		return -EINVAL;
+	}
+
+	i2c_dev->clk = of_clk_get_by_name(np, "ssc");
+	if (IS_ERR(i2c_dev->clk)) {
+		dev_err(&pdev->dev, "Unable to request clock\n");
+		return PTR_ERR(i2c_dev->clk);
+	}
+
+	i2c_dev->mode = I2C_MODE_STANDARD;
+	ret = of_property_read_u32(np, "clock-frequency", &clk_rate);
+	if ((!ret) && (clk_rate == 400000))
+		i2c_dev->mode = I2C_MODE_FAST;
+
+	i2c_dev->dev = &pdev->dev;
+
+	ret = devm_request_threaded_irq(&pdev->dev, i2c_dev->irq,
+			NULL, st_i2c_isr_thread,
+			IRQF_ONESHOT, pdev->name, i2c_dev);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to request irq %i\n", i2c_dev->irq);
+		return ret;
+	}
+
+	pinctrl_pm_select_default_state(i2c_dev->dev);
+	/* In case idle state available, select it */
+	pinctrl_pm_select_idle_state(i2c_dev->dev);
+
+	ret = st_i2c_of_get_deglitch(np, i2c_dev);
+	if (ret)
+		return ret;
+
+	adap = &i2c_dev->adap;
+	i2c_set_adapdata(adap, i2c_dev);
+	snprintf(adap->name, sizeof(adap->name), "ST I2C(0x%x)", res->start);
+	adap->owner = THIS_MODULE;
+	adap->timeout = 2 * HZ;
+	adap->retries = 0;
+	adap->algo = &st_i2c_algo;
+	adap->dev.parent = &pdev->dev;
+	adap->dev.of_node = pdev->dev.of_node;
+
+	init_completion(&i2c_dev->complete);
+
+	ret = i2c_add_adapter(adap);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to add adapter\n");
+		return ret;
+	}
+
+	platform_set_drvdata(pdev, i2c_dev);
+
+	dev_info(i2c_dev->dev, "%s initialized\n", adap->name);
+
+	return 0;
+}
+
+static int st_i2c_remove(struct platform_device *pdev)
+{
+	struct st_i2c_dev *i2c_dev = platform_get_drvdata(pdev);
+
+	i2c_del_adapter(&i2c_dev->adap);
+
+	return 0;
+}
+
+static struct of_device_id st_i2c_match[] = {
+	{ .compatible = "st,comms-ssc-i2c", },
+	{ .compatible = "st,comms-ssc4-i2c", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, st_i2c_match);
+
+static struct platform_driver st_i2c_driver = {
+	.driver = {
+		.name = "st-i2c",
+		.owner = THIS_MODULE,
+		.of_match_table = st_i2c_match,
+		.pm = ST_I2C_PM,
+	},
+	.probe = st_i2c_probe,
+	.remove = st_i2c_remove,
+};
+
+module_platform_driver(st_i2c_driver);
+
+MODULE_AUTHOR("Maxime Coquelin <maxime.coquelin@st.com>");
+MODULE_DESCRIPTION("STMicroelectronics I2C driver");
+MODULE_LICENSE("GPL v2");
-- 
cgit 


From 3cd0c2dfb482c90dd0547ec492c32adeb31e2bd5 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Wed, 6 Nov 2013 15:09:18 +0530
Subject: i2c: exynos5: Remove incorrect clk_disable_unprepare

clk_disable_unprepare in remove causes an imbalance and hence gives
the below crash on module remove. While at it also remove some
duplicate code from probe.

/ $ rmmod i2c-exynos5
[    6.996374] ------------[ cut here ]------------
[    6.999523] WARNING: CPU: 2 PID: 1137 at drivers/clk/clk.c:842 clk_disable+0x18/0x24()
[    7.007403] Modules linked in: i2c_exynos5(-)
[    7.011747] CPU: 2 PID: 1137 Comm: rmmod Not tainted 3.12.0-next-20131105-00083-g16f4799-dirty #21
[    7.020696] [<c0014e0c>] (unwind_backtrace+0x0/0xf4) from [<c0011784>] (show_stack+0x10/0x14)
[    7.029190] [<c0011784>] (show_stack+0x10/0x14) from [<c037acd4>] (dump_stack+0x7c/0xb0)
[    7.037255] [<c037acd4>] (dump_stack+0x7c/0xb0) from [<c001e0ac>] (warn_slowpath_common+0x6c/0x88)
[    7.046190] [<c001e0ac>] (warn_slowpath_common+0x6c/0x88) from [<c001e164>] (warn_slowpath_null+0x1c/0x24)
[    7.055818] [<c001e164>] (warn_slowpath_null+0x1c/0x24) from [<c02dcde4>] (clk_disable+0x18/0x24)
[    7.064670] [<c02dcde4>] (clk_disable+0x18/0x24) from [<bf0002d4>] (exynos5_i2c_remove+0x1c/0x34 [i2c_exynos5])
[    7.074736] [<bf0002d4>] (exynos5_i2c_remove+0x1c/0x34 [i2c_exynos5]) from [<c02274a8>] (__device_release_driver+0x58/0xb0)
[    7.085836] [<c02274a8>] (__device_release_driver+0x58/0xb0) from [<c0227b88>] (driver_detach+0xac/0xb0)
[    7.095291] [<c0227b88>] (driver_detach+0xac/0xb0) from [<c02271c0>] (bus_remove_driver+0x4c/0xa0)
[    7.104227] [<c02271c0>] (bus_remove_driver+0x4c/0xa0) from [<c00725dc>] (SyS_delete_module+0x124/0x194)
[    7.113682] [<c00725dc>] (SyS_delete_module+0x124/0x194) from [<c000e2e0>] (ret_fast_syscall+0x0/0x30)
[    7.122957] ---[ end trace 23bb6e4e0bf52196 ]---

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-exynos5.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/i2c/busses/i2c-exynos5.c b/drivers/i2c/busses/i2c-exynos5.c
index aca3991b7636..da39ff0deab5 100644
--- a/drivers/i2c/busses/i2c-exynos5.c
+++ b/drivers/i2c/busses/i2c-exynos5.c
@@ -702,10 +702,6 @@ static int exynos5_i2c_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, i2c);
 
-	clk_disable_unprepare(i2c->clk);
-
-	return 0;
-
  err_clk:
 	clk_disable_unprepare(i2c->clk);
 	return ret;
@@ -716,7 +712,6 @@ static int exynos5_i2c_remove(struct platform_device *pdev)
 	struct exynos5_i2c *i2c = platform_get_drvdata(pdev);
 
 	i2c_del_adapter(&i2c->adap);
-	clk_disable_unprepare(i2c->clk);
 
 	return 0;
 }
-- 
cgit 


From afc659241258b40b683998ec801d25d276529f43 Mon Sep 17 00:00:00 2001
From: James Ralston <james.d.ralston@intel.com>
Date: Mon, 4 Nov 2013 09:29:48 -0800
Subject: i2c: i801: Add Device IDs for Intel Wildcat Point-LP PCH

This patch adds the SMBus Device IDs for the Intel Wildcat Point-LP PCH.

Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 Documentation/i2c/busses/i2c-i801 | 1 +
 drivers/i2c/busses/Kconfig        | 1 +
 drivers/i2c/busses/i2c-i801.c     | 3 +++
 3 files changed, 5 insertions(+)

diff --git a/Documentation/i2c/busses/i2c-i801 b/Documentation/i2c/busses/i2c-i801
index d29dea0f3232..7b0dcdb57173 100644
--- a/Documentation/i2c/busses/i2c-i801
+++ b/Documentation/i2c/busses/i2c-i801
@@ -25,6 +25,7 @@ Supported adapters:
   * Intel Avoton (SOC)
   * Intel Wellsburg (PCH)
   * Intel Coleto Creek (PCH)
+  * Intel Wildcat Point-LP (PCH)
    Datasheets: Publicly available at the Intel website
 
 On Intel Patsburg and later chipsets, both the normal host SMBus controller
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 012646215e7e..9feea170eee7 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -109,6 +109,7 @@ config I2C_I801
 	    Avoton (SOC)
 	    Wellsburg (PCH)
 	    Coleto Creek (PCH)
+	    Wildcat Point-LP (PCH)
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-i801.
diff --git a/drivers/i2c/busses/i2c-i801.c b/drivers/i2c/busses/i2c-i801.c
index 4296d1721272..737e29866887 100644
--- a/drivers/i2c/busses/i2c-i801.c
+++ b/drivers/i2c/busses/i2c-i801.c
@@ -59,6 +59,7 @@
   Wellsburg (PCH) MS    0x8d7e     32     hard     yes     yes     yes
   Wellsburg (PCH) MS    0x8d7f     32     hard     yes     yes     yes
   Coleto Creek (PCH)    0x23b0     32     hard     yes     yes     yes
+  Wildcat Point-LP (PCH)   0x9ca2     32     hard     yes     yes     yes
 
   Features supported by this driver:
   Software PEC                     no
@@ -177,6 +178,7 @@
 #define PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS1	0x8d7e
 #define PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS2	0x8d7f
 #define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_SMBUS	0x9c22
+#define PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_SMBUS	0x9ca2
 
 struct i801_mux_config {
 	char *gpio_chip;
@@ -819,6 +821,7 @@ static DEFINE_PCI_DEVICE_TABLE(i801_ids) = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS1) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WELLSBURG_SMBUS_MS2) },
 	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_COLETOCREEK_SMBUS) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_WILDCATPOINT_LP_SMBUS) },
 	{ 0, }
 };
 
-- 
cgit 


From 25b3dfc87bff80317d67ddd2cd4cfb91e6fe7d79 Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Tue, 12 Nov 2013 11:57:30 +0200
Subject: i2c: designware: add new ACPI IDs

Newer Intel PCHs with LPSS have the same Designware I2C controllers than
Haswell but the ACPI IDs differ. Add these IDs to the driver list.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-designware-platdrv.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 4c1b60539a25..c4ca1aae98d4 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -103,6 +103,8 @@ static int dw_i2c_acpi_configure(struct platform_device *pdev)
 static const struct acpi_device_id dw_i2c_acpi_match[] = {
 	{ "INT33C2", 0 },
 	{ "INT33C3", 0 },
+	{ "INT3432", 0 },
+	{ "INT3433", 0 },
 	{ "80860F41", 0 },
 	{ }
 };
-- 
cgit 


From 2dc9688a106886db7191d30f30ffd61fde827efd Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 11 Nov 2013 22:23:50 +0800
Subject: i2c: wmt: add missing clk_disable_unprepare() on error

Add the missing clk_disable_unprepare() before return
from wmt_i2c_reset_hardware() in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: stable@kernel.org # 3.11+
---
 drivers/i2c/busses/i2c-wmt.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/i2c/busses/i2c-wmt.c b/drivers/i2c/busses/i2c-wmt.c
index c65da3d913a0..4bf9507cd1a1 100644
--- a/drivers/i2c/busses/i2c-wmt.c
+++ b/drivers/i2c/busses/i2c-wmt.c
@@ -349,6 +349,7 @@ static int wmt_i2c_reset_hardware(struct wmt_i2c_dev *i2c_dev)
 	err = clk_set_rate(i2c_dev->clk, 20000000);
 	if (err) {
 		dev_err(i2c_dev->dev, "failed to set clock = 20Mhz\n");
+		clk_disable_unprepare(i2c_dev->clk);
 		return err;
 	}
 
-- 
cgit 


From ef1e8d03b13126261c6e7dcf058fb5d80d34b33c Mon Sep 17 00:00:00 2001
From: Aristeu Rozanski <arozansk@redhat.com>
Date: Wed, 30 Oct 2013 13:26:56 -0300
Subject: sb_edac: make RANK_CFG_A value part of sbridge_info

This is in preparation of Ivy Bridge support.

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/edac/sb_edac.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index e04462b60756..3f8c890d79c6 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -262,7 +262,7 @@ static const u32 correrrthrsld[] = {
 
 /* Device 17, function 0 */
 
-#define RANK_CFG_A		0x0328
+#define SB_RANK_CFG_A		0x0328
 
 #define IS_RDIMM_ENABLED(reg)		GET_BITFIELD(reg, 11, 11)
 
@@ -275,6 +275,7 @@ static const u32 correrrthrsld[] = {
 
 struct sbridge_info {
 	u32	mcmtr;
+	u32	rankcfgr;
 };
 
 struct sbridge_channel {
@@ -520,6 +521,8 @@ static int get_dimm_config(struct mem_ctl_info *mci)
 	enum edac_type mode;
 	enum mem_type mtype;
 
+	pvt->info.rankcfgr = SB_RANK_CFG_A;
+
 	pci_read_config_dword(pvt->pci_br, SAD_TARGET, &reg);
 	pvt->sbridge_dev->source_id = SOURCE_ID(reg);
 
@@ -558,7 +561,8 @@ static int get_dimm_config(struct mem_ctl_info *mci)
 	}
 
 	if (pvt->pci_ddrio) {
-		pci_read_config_dword(pvt->pci_ddrio, RANK_CFG_A, &reg);
+		pci_read_config_dword(pvt->pci_ddrio, pvt->info.rankcfgr,
+				      &reg);
 		if (IS_RDIMM_ENABLED(reg)) {
 			/* FIXME: Can also be LRDIMM */
 			edac_dbg(0, "Memory is registered\n");
-- 
cgit 


From fb79a50926b8abadf24ec15e0e61778fa2b7d10b Mon Sep 17 00:00:00 2001
From: Aristeu Rozanski <arozansk@redhat.com>
Date: Wed, 30 Oct 2013 13:26:57 -0300
Subject: sb_edac: isolate TOLM retrieval

This is in preparation for the Ivy Bridge support.

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/edac/sb_edac.c | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index 3f8c890d79c6..bc434ad5465d 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -273,9 +273,11 @@ static const u32 correrrthrsld[] = {
 #define NUM_CHANNELS	4
 #define MAX_DIMMS	3		/* Max DIMMS per channel */
 
+struct sbridge_pvt;
 struct sbridge_info {
 	u32	mcmtr;
 	u32	rankcfgr;
+	u64	(*get_tolm)(struct sbridge_pvt *pvt);
 };
 
 struct sbridge_channel {
@@ -459,6 +461,15 @@ static void free_sbridge_dev(struct sbridge_dev *sbridge_dev)
 	kfree(sbridge_dev);
 }
 
+static u64 sbridge_get_tolm(struct sbridge_pvt *pvt)
+{
+	u32 reg;
+
+	/* Address range is 32:28 */
+	pci_read_config_dword(pvt->pci_sad1, TOLM, &reg);
+	return GET_TOLM(reg);
+}
+
 /****************************************************************************
 			Memory check routines
  ****************************************************************************/
@@ -633,10 +644,7 @@ static void get_memory_layout(const struct mem_ctl_info *mci)
 	 * Step 1) Get TOLM/TOHM ranges
 	 */
 
-	/* Address range is 32:28 */
-	pci_read_config_dword(pvt->pci_sad1, TOLM,
-			      &reg);
-	pvt->tolm = GET_TOLM(reg);
+	pvt->tolm = pvt->info.get_tolm(pvt);
 	tmp_mb = (1 + pvt->tolm) >> 20;
 
 	mb = div_u64_rem(tmp_mb, 1000, &kb);
@@ -1661,6 +1669,7 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev)
 	mci->ctl_name = kasprintf(GFP_KERNEL, "Sandy Bridge Socket#%d", mci->mc_idx);
 	mci->dev_name = pci_name(sbridge_dev->pdev[0]);
 	mci->ctl_page_to_phys = NULL;
+	pvt->info.get_tolm = sbridge_get_tolm;
 
 	/* Set the function pointer to an actual operation function */
 	mci->edac_check = sbridge_check_error;
-- 
cgit 


From f7625980f5820edd1a73536e1a03bcbc1f889fec Mon Sep 17 00:00:00 2001
From: Bjorn Helgaas <bhelgaas@google.com>
Date: Thu, 14 Nov 2013 11:28:18 -0700
Subject: PCI: Fix whitespace, capitalization, and spelling errors

Fix whitespace, capitalization, and spelling errors.  No functional change.
I know "busses" is not an error, but "buses" was more common, so I used it
consistently.

Signed-off-by: Marta Rybczynska <rybczynska@gmail.com> (pci_reset_bridge_secondary_bus())
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/pci/ats.c                       |   2 +-
 drivers/pci/host/pci-tegra.c            |  12 ++--
 drivers/pci/host/pcie-designware.c      |   2 +-
 drivers/pci/hotplug/Kconfig             |   4 +-
 drivers/pci/hotplug/Makefile            |   2 +-
 drivers/pci/hotplug/acpiphp_core.c      |  12 ++--
 drivers/pci/hotplug/acpiphp_glue.c      |   2 +-
 drivers/pci/hotplug/acpiphp_ibm.c       |  14 ++--
 drivers/pci/hotplug/cpci_hotplug_core.c |   2 +-
 drivers/pci/hotplug/cpci_hotplug_pci.c  |   2 +-
 drivers/pci/hotplug/cpcihp_generic.c    |  20 +++---
 drivers/pci/hotplug/cpcihp_zt5550.c     |  22 +++----
 drivers/pci/hotplug/cpcihp_zt5550.h     |  18 +++---
 drivers/pci/hotplug/cpqphp_core.c       |   4 +-
 drivers/pci/hotplug/cpqphp_ctrl.c       |  10 +--
 drivers/pci/hotplug/cpqphp_pci.c        |   5 +-
 drivers/pci/hotplug/ibmphp.h            |  12 ++--
 drivers/pci/hotplug/ibmphp_core.c       | 109 ++++++++++++++++----------------
 drivers/pci/hotplug/ibmphp_ebda.c       | 103 +++++++++++++++---------------
 drivers/pci/hotplug/ibmphp_hpc.c        |  24 +++----
 drivers/pci/hotplug/ibmphp_pci.c        |  71 ++++++++++-----------
 drivers/pci/hotplug/ibmphp_res.c        |  76 +++++++++++-----------
 drivers/pci/hotplug/pci_hotplug_core.c  |   8 +--
 drivers/pci/hotplug/pciehp.h            |   2 +-
 drivers/pci/hotplug/pciehp_acpi.c       |   2 +-
 drivers/pci/hotplug/pciehp_core.c       |   4 +-
 drivers/pci/hotplug/pciehp_hpc.c        |   6 +-
 drivers/pci/hotplug/pcihp_skeleton.c    |   8 +--
 drivers/pci/hotplug/rpadlpar_core.c     |   2 +-
 drivers/pci/hotplug/rpaphp.h            |   6 +-
 drivers/pci/hotplug/rpaphp_core.c       |   8 +--
 drivers/pci/hotplug/rpaphp_pci.c        |   3 +-
 drivers/pci/hotplug/rpaphp_slot.c       |  19 +++---
 drivers/pci/hotplug/shpchp.h            |   8 +--
 drivers/pci/hotplug/shpchp_core.c       |  10 +--
 drivers/pci/hotplug/shpchp_hpc.c        |   2 +-
 drivers/pci/iov.c                       |   2 +-
 drivers/pci/irq.c                       |   2 +-
 drivers/pci/msi.c                       |   2 +-
 drivers/pci/pci-acpi.c                  |   2 +-
 drivers/pci/pci-driver.c                |  16 ++---
 drivers/pci/pci-stub.c                  |   4 +-
 drivers/pci/pci-sysfs.c                 |  28 ++++----
 drivers/pci/pci.c                       |  46 +++++++-------
 drivers/pci/pcie/aer/aerdrv_core.c      |   2 +-
 drivers/pci/pcie/aspm.c                 |   2 +-
 drivers/pci/pcie/pme.c                  |   4 +-
 drivers/pci/pcie/portdrv.h              |   2 +-
 drivers/pci/pcie/portdrv_bus.c          |   4 +-
 drivers/pci/pcie/portdrv_core.c         |   2 +-
 drivers/pci/pcie/portdrv_pci.c          |   6 +-
 drivers/pci/probe.c                     |  10 +--
 drivers/pci/proc.c                      |   2 +-
 drivers/pci/quirks.c                    | 104 +++++++++++++++---------------
 drivers/pci/remove.c                    |   2 +-
 drivers/pci/search.c                    |  12 ++--
 drivers/pci/setup-bus.c                 |  18 +++---
 drivers/pci/setup-res.c                 |   2 +-
 drivers/pci/slot.c                      |   2 +-
 drivers/pci/syscall.c                   |   2 +-
 include/linux/msi.h                     |  10 +--
 include/linux/pci.h                     |  55 ++++++++--------
 include/linux/pci_hotplug.h             |   5 +-
 include/linux/pcieport_if.h             |   2 +-
 include/uapi/linux/pci_regs.h           |  72 ++++++++++-----------
 65 files changed, 518 insertions(+), 520 deletions(-)

diff --git a/drivers/pci/ats.c b/drivers/pci/ats.c
index 95655d7c0d0b..e52d7ffa38b9 100644
--- a/drivers/pci/ats.c
+++ b/drivers/pci/ats.c
@@ -410,7 +410,7 @@ EXPORT_SYMBOL_GPL(pci_disable_pasid);
  * Otherwise is returns a bitmask with supported features. Current
  * features reported are:
  * PCI_PASID_CAP_EXEC - Execute permission supported
- * PCI_PASID_CAP_PRIV - Priviledged mode supported
+ * PCI_PASID_CAP_PRIV - Privileged mode supported
  */
 int pci_pasid_features(struct pci_dev *pdev)
 {
diff --git a/drivers/pci/host/pci-tegra.c b/drivers/pci/host/pci-tegra.c
index 7c4f38dd42ba..0afbbbc55c81 100644
--- a/drivers/pci/host/pci-tegra.c
+++ b/drivers/pci/host/pci-tegra.c
@@ -249,7 +249,7 @@ struct tegra_pcie {
 	void __iomem *afi;
 	int irq;
 
-	struct list_head busses;
+	struct list_head buses;
 	struct resource *cs;
 
 	struct resource io;
@@ -399,14 +399,14 @@ free:
 
 /*
  * Look up a virtual address mapping for the specified bus number. If no such
- * mapping existis, try to create one.
+ * mapping exists, try to create one.
  */
 static void __iomem *tegra_pcie_bus_map(struct tegra_pcie *pcie,
 					unsigned int busnr)
 {
 	struct tegra_pcie_bus *bus;
 
-	list_for_each_entry(bus, &pcie->busses, list)
+	list_for_each_entry(bus, &pcie->buses, list)
 		if (bus->nr == busnr)
 			return (void __iomem *)bus->area->addr;
 
@@ -414,7 +414,7 @@ static void __iomem *tegra_pcie_bus_map(struct tegra_pcie *pcie,
 	if (IS_ERR(bus))
 		return NULL;
 
-	list_add_tail(&bus->list, &pcie->busses);
+	list_add_tail(&bus->list, &pcie->buses);
 
 	return (void __iomem *)bus->area->addr;
 }
@@ -808,7 +808,7 @@ static int tegra_pcie_enable_controller(struct tegra_pcie *pcie)
 	value &= ~AFI_FUSE_PCIE_T0_GEN2_DIS;
 	afi_writel(pcie, value, AFI_FUSE);
 
-	/* initialze internal PHY, enable up to 16 PCIE lanes */
+	/* initialize internal PHY, enable up to 16 PCIE lanes */
 	pads_writel(pcie, 0x0, PADS_CTL_SEL);
 
 	/* override IDDQ to 1 on all 4 lanes */
@@ -1624,7 +1624,7 @@ static int tegra_pcie_probe(struct platform_device *pdev)
 	if (!pcie)
 		return -ENOMEM;
 
-	INIT_LIST_HEAD(&pcie->busses);
+	INIT_LIST_HEAD(&pcie->buses);
 	INIT_LIST_HEAD(&pcie->ports);
 	pcie->soc_data = match->data;
 	pcie->dev = &pdev->dev;
diff --git a/drivers/pci/host/pcie-designware.c b/drivers/pci/host/pcie-designware.c
index 1e1fea4d959b..e33b68be0391 100644
--- a/drivers/pci/host/pcie-designware.c
+++ b/drivers/pci/host/pcie-designware.c
@@ -197,7 +197,7 @@ static int find_valid_pos0(struct pcie_port *pp, int msgvec, int pos, int *pos0)
 			return -ENOSPC;
 		/*
 		 * Check if this position is at correct offset.nvec is always a
-		 * power of two. pos0 must be nvec bit alligned.
+		 * power of two. pos0 must be nvec bit aligned.
 		 */
 		if (pos % msgvec)
 			pos += msgvec - (pos % msgvec);
diff --git a/drivers/pci/hotplug/Kconfig b/drivers/pci/hotplug/Kconfig
index 0a648af89531..df8caec59789 100644
--- a/drivers/pci/hotplug/Kconfig
+++ b/drivers/pci/hotplug/Kconfig
@@ -133,8 +133,8 @@ config HOTPLUG_PCI_RPA_DLPAR
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called rpadlpar_io.
- 
- 	  When in doubt, say N.
+
+	  When in doubt, say N.
 
 config HOTPLUG_PCI_SGI
 	tristate "SGI PCI Hotplug Support"
diff --git a/drivers/pci/hotplug/Makefile b/drivers/pci/hotplug/Makefile
index 47ec8c80e16d..3e6532b945c1 100644
--- a/drivers/pci/hotplug/Makefile
+++ b/drivers/pci/hotplug/Makefile
@@ -31,7 +31,7 @@ pci_hotplug-objs	+=	cpci_hotplug_core.o	\
 				cpci_hotplug_pci.o
 endif
 ifdef CONFIG_ACPI
-pci_hotplug-objs 	+= 	acpi_pcihp.o
+pci_hotplug-objs	+=	acpi_pcihp.o
 endif
 
 cpqphp-objs		:=	cpqphp_core.o	\
diff --git a/drivers/pci/hotplug/acpiphp_core.c b/drivers/pci/hotplug/acpiphp_core.c
index 8650d39db392..dca66bc44578 100644
--- a/drivers/pci/hotplug/acpiphp_core.c
+++ b/drivers/pci/hotplug/acpiphp_core.c
@@ -111,7 +111,7 @@ int acpiphp_register_attention(struct acpiphp_attention_info *info)
  * @info: must match the pointer used to register
  *
  * Description: This is used to un-register a hardware specific acpi
- * driver that manipulates the attention LED.  The pointer to the 
+ * driver that manipulates the attention LED.  The pointer to the
  * info struct must be the same as the one used to set it.
  */
 int acpiphp_unregister_attention(struct acpiphp_attention_info *info)
@@ -169,8 +169,8 @@ static int disable_slot(struct hotplug_slot *hotplug_slot)
  * was registered with us.  This allows hardware specific
  * ACPI implementations to blink the light for us.
  */
- static int set_attention_status(struct hotplug_slot *hotplug_slot, u8 status)
- {
+static int set_attention_status(struct hotplug_slot *hotplug_slot, u8 status)
+{
 	int retval = -ENODEV;
 
 	pr_debug("%s - physical_slot = %s\n", __func__,
@@ -182,8 +182,8 @@ static int disable_slot(struct hotplug_slot *hotplug_slot)
 	} else
 		attention_info = NULL;
 	return retval;
- }
- 
+}
+
 
 /**
  * get_power_status - get power status of a slot
@@ -323,7 +323,7 @@ int acpiphp_register_hotplug_slot(struct acpiphp_slot *acpiphp_slot,
 	if (retval) {
 		pr_err("pci_hp_register failed with error %d\n", retval);
 		goto error_hpslot;
- 	}
+	}
 
 	pr_info("Slot [%s] registered\n", slot_name(slot));
 
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 5b4e9eb0e8ff..1cf605f67673 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -325,7 +325,7 @@ static acpi_status register_slot(acpi_handle handle, u32 lvl, void *data,
 
 	list_add_tail(&slot->node, &bridge->slots);
 
-	/* Register slots for ejectable funtions only. */
+	/* Register slots for ejectable functions only. */
 	if (acpi_pci_check_ejectable(pbus, handle)  || is_dock_device(handle)) {
 		unsigned long long sun;
 		int retval;
diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
index 0d64c414bf78..ecfac7e72d91 100644
--- a/drivers/pci/hotplug/acpiphp_ibm.c
+++ b/drivers/pci/hotplug/acpiphp_ibm.c
@@ -116,7 +116,7 @@ static struct bin_attribute ibm_apci_table_attr = {
 	    .read = ibm_read_apci_table,
 	    .write = NULL,
 };
-static struct acpiphp_attention_info ibm_attention_info = 
+static struct acpiphp_attention_info ibm_attention_info =
 {
 	.set_attn = ibm_set_attention_status,
 	.get_attn = ibm_get_attention_status,
@@ -171,9 +171,9 @@ ibm_slot_done:
  */
 static int ibm_set_attention_status(struct hotplug_slot *slot, u8 status)
 {
-	union acpi_object args[2]; 
+	union acpi_object args[2];
 	struct acpi_object_list params = { .pointer = args, .count = 2 };
-	acpi_status stat; 
+	acpi_status stat;
 	unsigned long long rc;
 	union apci_descriptor *ibm_slot;
 
@@ -208,7 +208,7 @@ static int ibm_set_attention_status(struct hotplug_slot *slot, u8 status)
  *
  * Description: This method is registered with the acpiphp module as a
  * callback to do the device specific task of getting the LED status.
- * 
+ *
  * Because there is no direct method of getting the LED status directly
  * from an ACPI call, we read the aPCI table and parse out our
  * slot descriptor to read the status from that.
@@ -259,7 +259,7 @@ static void ibm_handle_events(acpi_handle handle, u32 event, void *context)
 	pr_debug("%s: Received notification %02x\n", __func__, event);
 
 	if (subevent == 0x80) {
-		pr_debug("%s: generationg bus event\n", __func__);
+		pr_debug("%s: generating bus event\n", __func__);
 		acpi_bus_generate_netlink_event(note->device->pnp.device_class,
 						  dev_name(&note->device->dev),
 						  note->event, detail);
@@ -387,7 +387,7 @@ static acpi_status __init ibm_find_acpi_device(acpi_handle handle,
 		u32 lvl, void *context, void **rv)
 {
 	acpi_handle *phandle = (acpi_handle *)context;
-	acpi_status status; 
+	acpi_status status;
 	struct acpi_device_info *info;
 	int retval = 0;
 
@@ -405,7 +405,7 @@ static acpi_status __init ibm_find_acpi_device(acpi_handle handle,
 			info->hardware_id.string, handle);
 		*phandle = handle;
 		/* returning non-zero causes the search to stop
-		 * and returns this value to the caller of 
+		 * and returns this value to the caller of
 		 * acpi_walk_namespace, but it also causes some warnings
 		 * in the acpi debug code to print...
 		 */
diff --git a/drivers/pci/hotplug/cpci_hotplug_core.c b/drivers/pci/hotplug/cpci_hotplug_core.c
index 2b4c412f94c3..00c81a3cefc9 100644
--- a/drivers/pci/hotplug/cpci_hotplug_core.c
+++ b/drivers/pci/hotplug/cpci_hotplug_core.c
@@ -46,7 +46,7 @@
 	do {							\
 		if (cpci_debug)					\
 			printk (KERN_DEBUG "%s: " format "\n",	\
-				MY_NAME , ## arg); 		\
+				MY_NAME , ## arg);		\
 	} while (0)
 #define err(format, arg...) printk(KERN_ERR "%s: " format "\n", MY_NAME , ## arg)
 #define info(format, arg...) printk(KERN_INFO "%s: " format "\n", MY_NAME , ## arg)
diff --git a/drivers/pci/hotplug/cpci_hotplug_pci.c b/drivers/pci/hotplug/cpci_hotplug_pci.c
index d8add34177f2..d3add9819f63 100644
--- a/drivers/pci/hotplug/cpci_hotplug_pci.c
+++ b/drivers/pci/hotplug/cpci_hotplug_pci.c
@@ -39,7 +39,7 @@ extern int cpci_debug;
 	do {							\
 		if (cpci_debug)					\
 			printk (KERN_DEBUG "%s: " format "\n",	\
-				MY_NAME , ## arg); 		\
+				MY_NAME , ## arg);		\
 	} while (0)
 #define err(format, arg...) printk(KERN_ERR "%s: " format "\n", MY_NAME , ## arg)
 #define info(format, arg...) printk(KERN_INFO "%s: " format "\n", MY_NAME , ## arg)
diff --git a/drivers/pci/hotplug/cpcihp_generic.c b/drivers/pci/hotplug/cpcihp_generic.c
index a6a71c41cdf8..7536eef620b0 100644
--- a/drivers/pci/hotplug/cpcihp_generic.c
+++ b/drivers/pci/hotplug/cpcihp_generic.c
@@ -13,14 +13,14 @@
  * option) any later version.
  *
  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 
- * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  * You should have received a copy of the GNU General Public License along
@@ -53,9 +53,9 @@
 
 #define dbg(format, arg...)					\
 	do {							\
-		if(debug)					\
+		if (debug)					\
 			printk (KERN_DEBUG "%s: " format "\n",	\
-				MY_NAME , ## arg); 		\
+				MY_NAME , ## arg);		\
 	} while(0)
 #define err(format, arg...) printk(KERN_ERR "%s: " format "\n", MY_NAME , ## arg)
 #define info(format, arg...) printk(KERN_INFO "%s: " format "\n", MY_NAME , ## arg)
diff --git a/drivers/pci/hotplug/cpcihp_zt5550.c b/drivers/pci/hotplug/cpcihp_zt5550.c
index 449b4bbc8301..e8c4a7ccf578 100644
--- a/drivers/pci/hotplug/cpcihp_zt5550.c
+++ b/drivers/pci/hotplug/cpcihp_zt5550.c
@@ -13,14 +13,14 @@
  * option) any later version.
  *
  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 
- * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  * You should have received a copy of the GNU General Public License along
@@ -48,9 +48,9 @@
 
 #define dbg(format, arg...)					\
 	do {							\
-		if(debug)					\
+		if (debug)					\
 			printk (KERN_DEBUG "%s: " format "\n",	\
-				MY_NAME , ## arg); 		\
+				MY_NAME , ## arg);		\
 	} while(0)
 #define err(format, arg...) printk(KERN_ERR "%s: " format "\n", MY_NAME , ## arg)
 #define info(format, arg...) printk(KERN_INFO "%s: " format "\n", MY_NAME , ## arg)
@@ -285,7 +285,7 @@ static struct pci_device_id zt5550_hc_pci_tbl[] = {
 	{ 0, }
 };
 MODULE_DEVICE_TABLE(pci, zt5550_hc_pci_tbl);
-	
+
 static struct pci_driver zt5550_hc_driver = {
 	.name		= "zt5550_hc",
 	.id_table	= zt5550_hc_pci_tbl,
diff --git a/drivers/pci/hotplug/cpcihp_zt5550.h b/drivers/pci/hotplug/cpcihp_zt5550.h
index bebc6060a558..9a57fda5348c 100644
--- a/drivers/pci/hotplug/cpcihp_zt5550.h
+++ b/drivers/pci/hotplug/cpcihp_zt5550.h
@@ -13,14 +13,14 @@
  * option) any later version.
  *
  * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 
- * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 
- * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 
- * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 
- * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  * You should have received a copy of the GNU General Public License along
@@ -55,7 +55,7 @@
 #define HC_CMD_REG		0x0C
 #define ARB_CONFIG_GNT_REG	0x10
 #define ARB_CONFIG_CFG_REG	0x12
-#define ARB_CONFIG_REG	 	0x10
+#define ARB_CONFIG_REG		0x10
 #define ISOL_CONFIG_REG		0x18
 #define FAULT_STATUS_REG	0x20
 #define FAULT_CONFIG_REG	0x24
diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c
index c8eaeb43fa5d..31273e155e6c 100644
--- a/drivers/pci/hotplug/cpqphp_core.c
+++ b/drivers/pci/hotplug/cpqphp_core.c
@@ -862,10 +862,10 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		goto err_disable_device;
 	}
 
-	/* Check for the proper subsystem ID's
+	/* Check for the proper subsystem IDs
 	 * Intel uses a different SSID programming model than Compaq.
 	 * For Intel, each SSID bit identifies a PHP capability.
-	 * Also Intel HPC's may have RID=0.
+	 * Also Intel HPCs may have RID=0.
 	 */
 	if ((pdev->revision <= 2) && (vendor_id != PCI_VENDOR_ID_INTEL)) {
 		err(msg_HPC_not_supported);
diff --git a/drivers/pci/hotplug/cpqphp_ctrl.c b/drivers/pci/hotplug/cpqphp_ctrl.c
index d282019cda5f..11845b796799 100644
--- a/drivers/pci/hotplug/cpqphp_ctrl.c
+++ b/drivers/pci/hotplug/cpqphp_ctrl.c
@@ -1231,7 +1231,7 @@ static u8 set_controller_speed(struct controller *ctrl, u8 adapter_speed, u8 hp_
 
 	/* Only if mode change...*/
 	if (((bus->cur_bus_speed == PCI_SPEED_66MHz) && (adapter_speed == PCI_SPEED_66MHz_PCIX)) ||
-		((bus->cur_bus_speed == PCI_SPEED_66MHz_PCIX) && (adapter_speed == PCI_SPEED_66MHz))) 
+		((bus->cur_bus_speed == PCI_SPEED_66MHz_PCIX) && (adapter_speed == PCI_SPEED_66MHz)))
 			set_SOGO(ctrl);
 
 	wait_for_ctrl_irq(ctrl);
@@ -1828,7 +1828,7 @@ static void interrupt_event_handler(struct controller *ctrl)
 
 				if (ctrl->event_queue[loop].event_type == INT_BUTTON_PRESS) {
 					dbg("button pressed\n");
-				} else if (ctrl->event_queue[loop].event_type == 
+				} else if (ctrl->event_queue[loop].event_type ==
 					   INT_BUTTON_CANCEL) {
 					dbg("button cancel\n");
 					del_timer(&p_slot->task_event);
@@ -2411,11 +2411,11 @@ static int configure_new_function(struct controller *ctrl, struct pci_func *func
 		if (rc)
 			return rc;
 
-		/* find range of busses to use */
+		/* find range of buses to use */
 		dbg("find ranges of buses to use\n");
 		bus_node = get_max_resource(&(resources->bus_head), 1);
 
-		/* If we don't have any busses to allocate, we can't continue */
+		/* If we don't have any buses to allocate, we can't continue */
 		if (!bus_node)
 			return -ENOMEM;
 
@@ -2900,7 +2900,7 @@ static int configure_new_function(struct controller *ctrl, struct pci_func *func
 
 			/* If this function needs an interrupt and we are behind
 			 * a bridge and the pin is tied to something that's
-			 * alread mapped, set this one the same */
+			 * already mapped, set this one the same */
 			if (temp_byte && resources->irqs &&
 			    (resources->irqs->valid_INT &
 			     (0x01 << ((temp_byte + resources->irqs->barber_pole - 1) & 0x03)))) {
diff --git a/drivers/pci/hotplug/cpqphp_pci.c b/drivers/pci/hotplug/cpqphp_pci.c
index 09801c6945ce..6e4a12c91adb 100644
--- a/drivers/pci/hotplug/cpqphp_pci.c
+++ b/drivers/pci/hotplug/cpqphp_pci.c
@@ -291,7 +291,7 @@ int cpqhp_get_bus_dev (struct controller *ctrl, u8 * bus_num, u8 * dev_num, u8 s
  *
  * Reads configuration for all slots in a PCI bus and saves info.
  *
- * Note:  For non-hot plug busses, the slot # saved is the device #
+ * Note:  For non-hot plug buses, the slot # saved is the device #
  *
  * returns 0 if success
  */
@@ -455,7 +455,7 @@ int cpqhp_save_config(struct controller *ctrl, int busnumber, int is_hot_plug)
  * cpqhp_save_slot_config
  *
  * Saves configuration info for all PCI devices in a given slot
- * including subordinate busses.
+ * including subordinate buses.
  *
  * returns 0 if success
  */
@@ -1556,4 +1556,3 @@ void cpqhp_destroy_board_resources (struct pci_func * func)
 		kfree(tres);
 	}
 }
-
diff --git a/drivers/pci/hotplug/ibmphp.h b/drivers/pci/hotplug/ibmphp.h
index 8c5b25871d02..e3e46a7b3ee7 100644
--- a/drivers/pci/hotplug/ibmphp.h
+++ b/drivers/pci/hotplug/ibmphp.h
@@ -59,7 +59,7 @@ extern int ibmphp_debug;
 
 
 /************************************************************
-*  RESOURE TYPE                                             *
+*  RESOURCE TYPE                                             *
 ************************************************************/
 
 #define EBDA_RSRC_TYPE_MASK		0x03
@@ -103,7 +103,7 @@ extern int ibmphp_debug;
 //--------------------------------------------------------------
 
 struct rio_table_hdr {
-	u8 ver_num; 
+	u8 ver_num;
 	u8 scal_count;
 	u8 riodev_count;
 	u16 offset;
@@ -127,7 +127,7 @@ struct scal_detail {
 };
 
 //--------------------------------------------------------------
-// RIO DETAIL 
+// RIO DETAIL
 //--------------------------------------------------------------
 
 struct rio_detail {
@@ -152,7 +152,7 @@ struct opt_rio {
 	u8 first_slot_num;
 	u8 middle_num;
 	struct list_head opt_rio_list;
-};	
+};
 
 struct opt_rio_lo {
 	u8 rio_type;
@@ -161,7 +161,7 @@ struct opt_rio_lo {
 	u8 middle_num;
 	u8 pack_count;
 	struct list_head opt_rio_lo_list;
-};	
+};
 
 /****************************************************************
 *  HPC DESCRIPTOR NODE                                          *
@@ -574,7 +574,7 @@ void ibmphp_hpc_stop_poll_thread(void);
 #define HPC_CTLR_IRQ_PENDG	0x80
 
 //----------------------------------------------------------------------------
-// HPC_CTLR_WROKING status return codes
+// HPC_CTLR_WORKING status return codes
 //----------------------------------------------------------------------------
 #define HPC_CTLR_WORKING_NO	0x00
 #define HPC_CTLR_WORKING_YES	0x01
diff --git a/drivers/pci/hotplug/ibmphp_core.c b/drivers/pci/hotplug/ibmphp_core.c
index cbd72d81d253..efdc13adbe41 100644
--- a/drivers/pci/hotplug/ibmphp_core.c
+++ b/drivers/pci/hotplug/ibmphp_core.c
@@ -58,7 +58,7 @@ MODULE_DESCRIPTION (DRIVER_DESC);
 struct pci_bus *ibmphp_pci_bus;
 static int max_slots;
 
-static int irqs[16];    /* PIC mode IRQ's we're using so far (in case MPS
+static int irqs[16];    /* PIC mode IRQs we're using so far (in case MPS
 			 * tables don't provide default info for empty slots */
 
 static int init_flag;
@@ -71,20 +71,20 @@ static inline int get_max_adapter_speed (struct hotplug_slot *hs, u8 *value)
 	return get_max_adapter_speed_1 (hs, value, 1);
 }
 */
-static inline int get_cur_bus_info(struct slot **sl) 
+static inline int get_cur_bus_info(struct slot **sl)
 {
 	int rc = 1;
 	struct slot * slot_cur = *sl;
 
 	debug("options = %x\n", slot_cur->ctrl->options);
-	debug("revision = %x\n", slot_cur->ctrl->revision);	
+	debug("revision = %x\n", slot_cur->ctrl->revision);
 
-	if (READ_BUS_STATUS(slot_cur->ctrl)) 
+	if (READ_BUS_STATUS(slot_cur->ctrl))
 		rc = ibmphp_hpc_readslot(slot_cur, READ_BUSSTATUS, NULL);
-	
-	if (rc) 
+
+	if (rc)
 		return rc;
-	  
+
 	slot_cur->bus_on->current_speed = CURRENT_BUS_SPEED(slot_cur->busstatus);
 	if (READ_BUS_MODE(slot_cur->ctrl))
 		slot_cur->bus_on->current_bus_mode =
@@ -96,7 +96,7 @@ static inline int get_cur_bus_info(struct slot **sl)
 			slot_cur->busstatus,
 			slot_cur->bus_on->current_speed,
 			slot_cur->bus_on->current_bus_mode);
-	
+
 	*sl = slot_cur;
 	return 0;
 }
@@ -104,8 +104,8 @@ static inline int get_cur_bus_info(struct slot **sl)
 static inline int slot_update(struct slot **sl)
 {
 	int rc;
- 	rc = ibmphp_hpc_readslot(*sl, READ_ALLSTAT, NULL);
-	if (rc) 
+	rc = ibmphp_hpc_readslot(*sl, READ_ALLSTAT, NULL);
+	if (rc)
 		return rc;
 	if (!init_flag)
 		rc = get_cur_bus_info(sl);
@@ -172,7 +172,7 @@ int ibmphp_init_devno(struct slot **cur_slot)
 			debug("(*cur_slot)->irq[3] = %x\n",
 					(*cur_slot)->irq[3]);
 
-			debug("rtable->exlusive_irqs = %x\n",
+			debug("rtable->exclusive_irqs = %x\n",
 					rtable->exclusive_irqs);
 			debug("rtable->slots[loop].irq[0].bitmap = %x\n",
 					rtable->slots[loop].irq[0].bitmap);
@@ -271,7 +271,7 @@ static int set_attention_status(struct hotplug_slot *hotplug_slot, u8 value)
 			else
 				rc = -ENODEV;
 		}
-	} else	
+	} else
 		rc = -ENODEV;
 
 	ibmphp_unlock_operations();
@@ -288,7 +288,7 @@ static int get_attention_status(struct hotplug_slot *hotplug_slot, u8 * value)
 
 	debug("get_attention_status - Entry hotplug_slot[%lx] pvalue[%lx]\n",
 					(ulong) hotplug_slot, (ulong) value);
-        
+
 	ibmphp_lock_operations();
 	if (hotplug_slot) {
 		pslot = hotplug_slot->private;
@@ -406,14 +406,14 @@ static int get_max_bus_speed(struct slot *slot)
 
 	ibmphp_lock_operations();
 	mode = slot->supported_bus_mode;
-	speed = slot->supported_speed; 
+	speed = slot->supported_speed;
 	ibmphp_unlock_operations();
 
 	switch (speed) {
 	case BUS_SPEED_33:
 		break;
 	case BUS_SPEED_66:
-		if (mode == BUS_MODE_PCIX) 
+		if (mode == BUS_MODE_PCIX)
 			speed += 0x01;
 		break;
 	case BUS_SPEED_100:
@@ -515,13 +515,13 @@ static int __init init_ops(void)
 
 		debug("BEFORE GETTING SLOT STATUS, slot # %x\n",
 							slot_cur->number);
-		if (slot_cur->ctrl->revision == 0xFF) 
+		if (slot_cur->ctrl->revision == 0xFF)
 			if (get_ctrl_revision(slot_cur,
 						&slot_cur->ctrl->revision))
 				return -1;
 
-		if (slot_cur->bus_on->current_speed == 0xFF) 
-			if (get_cur_bus_info(&slot_cur)) 
+		if (slot_cur->bus_on->current_speed == 0xFF)
+			if (get_cur_bus_info(&slot_cur))
 				return -1;
 		get_max_bus_speed(slot_cur);
 
@@ -539,8 +539,8 @@ static int __init init_ops(void)
 		debug("SLOT_PRESENT = %x\n", SLOT_PRESENT(slot_cur->status));
 		debug("SLOT_LATCH = %x\n", SLOT_LATCH(slot_cur->status));
 
-		if ((SLOT_PWRGD(slot_cur->status)) && 
-		    !(SLOT_PRESENT(slot_cur->status)) && 
+		if ((SLOT_PWRGD(slot_cur->status)) &&
+		    !(SLOT_PRESENT(slot_cur->status)) &&
 		    !(SLOT_LATCH(slot_cur->status))) {
 			debug("BEFORE POWER OFF COMMAND\n");
 				rc = power_off(slot_cur);
@@ -581,13 +581,13 @@ static int validate(struct slot *slot_cur, int opn)
 
 	switch (opn) {
 		case ENABLE:
-			if (!(SLOT_PWRGD(slot_cur->status)) && 
-			     (SLOT_PRESENT(slot_cur->status)) && 
+			if (!(SLOT_PWRGD(slot_cur->status)) &&
+			     (SLOT_PRESENT(slot_cur->status)) &&
 			     !(SLOT_LATCH(slot_cur->status)))
 				return 0;
 			break;
 		case DISABLE:
-			if ((SLOT_PWRGD(slot_cur->status)) && 
+			if ((SLOT_PWRGD(slot_cur->status)) &&
 			    (SLOT_PRESENT(slot_cur->status)) &&
 			    !(SLOT_LATCH(slot_cur->status)))
 				return 0;
@@ -617,7 +617,7 @@ int ibmphp_update_slot_info(struct slot *slot_cur)
 		err("out of system memory\n");
 		return -ENOMEM;
 	}
-        
+
 	info->power_status = SLOT_PWRGD(slot_cur->status);
 	info->attention_status = SLOT_ATTN(slot_cur->status,
 						slot_cur->ext_status);
@@ -638,7 +638,7 @@ int ibmphp_update_slot_info(struct slot *slot_cur)
 		case BUS_SPEED_33:
 			break;
 		case BUS_SPEED_66:
-			if (mode == BUS_MODE_PCIX) 
+			if (mode == BUS_MODE_PCIX)
 				bus_speed += 0x01;
 			else if (mode == BUS_MODE_PCI)
 				;
@@ -654,8 +654,8 @@ int ibmphp_update_slot_info(struct slot *slot_cur)
 	}
 
 	bus->cur_bus_speed = bus_speed;
-	// To do: bus_names 
-	
+	// To do: bus_names
+
 	rc = pci_hp_change_slot_info(slot_cur->hotplug_slot, info);
 	kfree(info);
 	return rc;
@@ -729,8 +729,8 @@ static void ibm_unconfigure_device(struct pci_func *func)
 }
 
 /*
- * The following function is to fix kernel bug regarding 
- * getting bus entries, here we manually add those primary 
+ * The following function is to fix kernel bug regarding
+ * getting bus entries, here we manually add those primary
  * bus entries to kernel bus structure whenever apply
  */
 static u8 bus_structure_fixup(u8 busno)
@@ -814,7 +814,7 @@ static int ibm_configure_device(struct pci_func *func)
 }
 
 /*******************************************************
- * Returns whether the bus is empty or not 
+ * Returns whether the bus is empty or not
  *******************************************************/
 static int is_bus_empty(struct slot * slot_cur)
 {
@@ -842,7 +842,7 @@ static int is_bus_empty(struct slot * slot_cur)
 }
 
 /***********************************************************
- * If the HPC permits and the bus currently empty, tries to set the 
+ * If the HPC permits and the bus currently empty, tries to set the
  * bus speed and mode at the maximum card and bus capability
  * Parameters: slot
  * Returns: bus is set (0) or error code
@@ -856,7 +856,7 @@ static int set_bus(struct slot * slot_cur)
 	static struct pci_device_id ciobx[] = {
 		{ PCI_DEVICE(PCI_VENDOR_ID_SERVERWORKS, 0x0101) },
 	        { },
-	};	
+	};
 
 	debug("%s - entry slot # %d\n", __func__, slot_cur->number);
 	if (SET_BUS_STATUS(slot_cur->ctrl) && is_bus_empty(slot_cur)) {
@@ -877,7 +877,7 @@ static int set_bus(struct slot * slot_cur)
 				else if (!SLOT_BUS_MODE(slot_cur->ext_status))
 					/* if max slot/bus capability is 66 pci
 					and there's no bus mode mismatch, then
-					the adapter supports 66 pci */ 
+					the adapter supports 66 pci */
 					cmd = HPC_BUS_66CONVMODE;
 				else
 					cmd = HPC_BUS_33CONVMODE;
@@ -930,7 +930,7 @@ static int set_bus(struct slot * slot_cur)
 			return -EIO;
 		}
 	}
-	/* This is for x440, once Brandon fixes the firmware, 
+	/* This is for x440, once Brandon fixes the firmware,
 	will not need this delay */
 	msleep(1000);
 	debug("%s -Exit\n", __func__);
@@ -938,9 +938,9 @@ static int set_bus(struct slot * slot_cur)
 }
 
 /* This routine checks the bus limitations that the slot is on from the BIOS.
- * This is used in deciding whether or not to power up the slot.  
+ * This is used in deciding whether or not to power up the slot.
  * (electrical/spec limitations. For example, >1 133 MHz or >2 66 PCI cards on
- * same bus) 
+ * same bus)
  * Parameters: slot
  * Returns: 0 = no limitations, -EINVAL = exceeded limitations on the bus
  */
@@ -986,7 +986,7 @@ static int check_limitations(struct slot *slot_cur)
 static inline void print_card_capability(struct slot *slot_cur)
 {
 	info("capability of the card is ");
-	if ((slot_cur->ext_status & CARD_INFO) == PCIX133) 
+	if ((slot_cur->ext_status & CARD_INFO) == PCIX133)
 		info("   133 MHz PCI-X\n");
 	else if ((slot_cur->ext_status & CARD_INFO) == PCIX66)
 		info("    66 MHz PCI-X\n");
@@ -1020,7 +1020,7 @@ static int enable_slot(struct hotplug_slot *hs)
 	}
 
 	attn_LED_blink(slot_cur);
-	
+
 	rc = set_bus(slot_cur);
 	if (rc) {
 		err("was not able to set the bus\n");
@@ -1082,7 +1082,7 @@ static int enable_slot(struct hotplug_slot *hs)
 	rc = slot_update(&slot_cur);
 	if (rc)
 		goto error_power;
-	
+
 	rc = -EINVAL;
 	if (SLOT_POWER(slot_cur->status) && !(SLOT_PWRGD(slot_cur->status))) {
 		err("power fault occurred trying to power up...\n");
@@ -1093,7 +1093,7 @@ static int enable_slot(struct hotplug_slot *hs)
 					"speed and card capability\n");
 		print_card_capability(slot_cur);
 		goto error_power;
-	} 
+	}
 	/* Don't think this case will happen after above checks...
 	 * but just in case, for paranoia sake */
 	if (!(SLOT_POWER(slot_cur->status))) {
@@ -1144,7 +1144,7 @@ static int enable_slot(struct hotplug_slot *hs)
 	ibmphp_print_test();
 	rc = ibmphp_update_slot_info(slot_cur);
 exit:
-	ibmphp_unlock_operations(); 
+	ibmphp_unlock_operations();
 	return rc;
 
 error_nopower:
@@ -1180,7 +1180,7 @@ static int ibmphp_disable_slot(struct hotplug_slot *hotplug_slot)
 {
 	struct slot *slot = hotplug_slot->private;
 	int rc;
-	
+
 	ibmphp_lock_operations();
 	rc = ibmphp_do_disable_slot(slot);
 	ibmphp_unlock_operations();
@@ -1192,12 +1192,12 @@ int ibmphp_do_disable_slot(struct slot *slot_cur)
 	int rc;
 	u8 flag;
 
-	debug("DISABLING SLOT...\n"); 
-		
+	debug("DISABLING SLOT...\n");
+
 	if ((slot_cur == NULL) || (slot_cur->ctrl == NULL)) {
 		return -ENODEV;
 	}
-	
+
 	flag = slot_cur->flag;
 	slot_cur->flag = 1;
 
@@ -1210,7 +1210,7 @@ int ibmphp_do_disable_slot(struct slot *slot_cur)
 	attn_LED_blink(slot_cur);
 
 	if (slot_cur->func == NULL) {
-		/* We need this for fncs's that were there on bootup */
+		/* We need this for functions that were there on bootup */
 		slot_cur->func = kzalloc(sizeof(struct pci_func), GFP_KERNEL);
 		if (!slot_cur->func) {
 			err("out of system memory\n");
@@ -1222,12 +1222,13 @@ int ibmphp_do_disable_slot(struct slot *slot_cur)
 	}
 
 	ibm_unconfigure_device(slot_cur->func);
-        
-	/* If we got here from latch suddenly opening on operating card or 
-	a power fault, there's no power to the card, so cannot
-	read from it to determine what resources it occupied.  This operation
-	is forbidden anyhow.  The best we can do is remove it from kernel
-	lists at least */
+
+	/*
+	 * If we got here from latch suddenly opening on operating card or
+	 * a power fault, there's no power to the card, so cannot
+	 * read from it to determine what resources it occupied.  This operation
+	 * is forbidden anyhow.  The best we can do is remove it from kernel
+	 * lists at least */
 
 	if (!flag) {
 		attn_off(slot_cur);
@@ -1264,7 +1265,7 @@ error:
 		rc = -EFAULT;
 		goto exit;
 	}
-	if (flag)		
+	if (flag)
 		ibmphp_update_slot_info(slot_cur);
 	goto exit;
 }
@@ -1339,7 +1340,7 @@ static int __init ibmphp_init(void)
 	debug("AFTER Resource & EBDA INITIALIZATIONS\n");
 
 	max_slots = get_max_slots();
-	
+
 	if ((rc = ibmphp_register_pci()))
 		goto error;
 
diff --git a/drivers/pci/hotplug/ibmphp_ebda.c b/drivers/pci/hotplug/ibmphp_ebda.c
index 9df78bc14541..bd044158b36c 100644
--- a/drivers/pci/hotplug/ibmphp_ebda.c
+++ b/drivers/pci/hotplug/ibmphp_ebda.c
@@ -123,7 +123,7 @@ static struct ebda_pci_rsrc *alloc_ebda_pci_rsrc (void)
 static void __init print_bus_info (void)
 {
 	struct bus_info *ptr;
-	
+
 	list_for_each_entry(ptr, &bus_info_head, bus_info_list) {
 		debug ("%s - slot_min = %x\n", __func__, ptr->slot_min);
 		debug ("%s - slot_max = %x\n", __func__, ptr->slot_max);
@@ -131,7 +131,7 @@ static void __init print_bus_info (void)
 		debug ("%s - bus# = %x\n", __func__, ptr->busno);
 		debug ("%s - current_speed = %x\n", __func__, ptr->current_speed);
 		debug ("%s - controller_id = %x\n", __func__, ptr->controller_id);
-		
+
 		debug ("%s - slots_at_33_conv = %x\n", __func__, ptr->slots_at_33_conv);
 		debug ("%s - slots_at_66_conv = %x\n", __func__, ptr->slots_at_66_conv);
 		debug ("%s - slots_at_66_pcix = %x\n", __func__, ptr->slots_at_66_pcix);
@@ -144,7 +144,7 @@ static void __init print_bus_info (void)
 static void print_lo_info (void)
 {
 	struct rio_detail *ptr;
-	debug ("print_lo_info ----\n");	
+	debug ("print_lo_info ----\n");
 	list_for_each_entry(ptr, &rio_lo_head, rio_detail_list) {
 		debug ("%s - rio_node_id = %x\n", __func__, ptr->rio_node_id);
 		debug ("%s - rio_type = %x\n", __func__, ptr->rio_type);
@@ -176,7 +176,7 @@ static void __init print_ebda_pci_rsrc (void)
 	struct ebda_pci_rsrc *ptr;
 
 	list_for_each_entry(ptr, &ibmphp_ebda_pci_rsrc_head, ebda_pci_rsrc_list) {
-		debug ("%s - rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n", 
+		debug ("%s - rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n",
 			__func__, ptr->rsrc_type ,ptr->bus_num, ptr->dev_fun,ptr->start_addr, ptr->end_addr);
 	}
 }
@@ -259,7 +259,7 @@ int __init ibmphp_access_ebda (void)
 	ebda_seg = readw (io_mem);
 	iounmap (io_mem);
 	debug ("returned ebda segment: %x\n", ebda_seg);
-	
+
 	io_mem = ioremap(ebda_seg<<4, 1);
 	if (!io_mem)
 		return -ENOMEM;
@@ -310,7 +310,7 @@ int __init ibmphp_access_ebda (void)
 			re = readw (io_mem + sub_addr);	/* next sub blk */
 
 			sub_addr += 2;
-			rc_id = readw (io_mem + sub_addr); 	/* sub blk id */
+			rc_id = readw (io_mem + sub_addr);	/* sub blk id */
 
 			sub_addr += 2;
 			if (rc_id != 0x5243)
@@ -330,7 +330,7 @@ int __init ibmphp_access_ebda (void)
 			debug ("info about hpc descriptor---\n");
 			debug ("hot blk format: %x\n", format);
 			debug ("num of controller: %x\n", num_ctlrs);
-			debug ("offset of hpc data structure enteries: %x\n ", sub_addr);
+			debug ("offset of hpc data structure entries: %x\n ", sub_addr);
 
 			sub_addr = base + re;	/* re sub blk */
 			/* FIXME: rc is never used/checked */
@@ -359,7 +359,7 @@ int __init ibmphp_access_ebda (void)
 			debug ("info about rsrc descriptor---\n");
 			debug ("format: %x\n", format);
 			debug ("num of rsrc: %x\n", num_entries);
-			debug ("offset of rsrc data structure enteries: %x\n ", sub_addr);
+			debug ("offset of rsrc data structure entries: %x\n ", sub_addr);
 
 			hs_complete = 1;
 		} else {
@@ -376,7 +376,7 @@ int __init ibmphp_access_ebda (void)
 			rio_table_ptr->scal_count = readb (io_mem + offset + 1);
 			rio_table_ptr->riodev_count = readb (io_mem + offset + 2);
 			rio_table_ptr->offset = offset +3 ;
-			
+
 			debug("info about rio table hdr ---\n");
 			debug("ver_num: %x\nscal_count: %x\nriodev_count: %x\noffset of rio table: %x\n ",
 				rio_table_ptr->ver_num, rio_table_ptr->scal_count,
@@ -440,12 +440,12 @@ static int __init ebda_rio_table (void)
 		rio_detail_ptr->chassis_num = readb (io_mem + offset + 14);
 //		debug ("rio_node_id: %x\nbbar: %x\nrio_type: %x\nowner_id: %x\nport0_node: %x\nport0_port: %x\nport1_node: %x\nport1_port: %x\nfirst_slot_num: %x\nstatus: %x\n", rio_detail_ptr->rio_node_id, rio_detail_ptr->bbar, rio_detail_ptr->rio_type, rio_detail_ptr->owner_id, rio_detail_ptr->port0_node_connect, rio_detail_ptr->port0_port_connect, rio_detail_ptr->port1_node_connect, rio_detail_ptr->port1_port_connect, rio_detail_ptr->first_slot_num, rio_detail_ptr->status);
 		//create linked list of chassis
-		if (rio_detail_ptr->rio_type == 4 || rio_detail_ptr->rio_type == 5) 
+		if (rio_detail_ptr->rio_type == 4 || rio_detail_ptr->rio_type == 5)
 			list_add (&rio_detail_ptr->rio_detail_list, &rio_vg_head);
-		//create linked list of expansion box				
-		else if (rio_detail_ptr->rio_type == 6 || rio_detail_ptr->rio_type == 7) 
+		//create linked list of expansion box
+		else if (rio_detail_ptr->rio_type == 6 || rio_detail_ptr->rio_type == 7)
 			list_add (&rio_detail_ptr->rio_detail_list, &rio_lo_head);
-		else 
+		else
 			// not in my concern
 			kfree (rio_detail_ptr);
 		offset += 15;
@@ -456,7 +456,7 @@ static int __init ebda_rio_table (void)
 }
 
 /*
- * reorganizing linked list of chassis	 
+ * reorganizing linked list of chassis
  */
 static struct opt_rio *search_opt_vg (u8 chassis_num)
 {
@@ -464,7 +464,7 @@ static struct opt_rio *search_opt_vg (u8 chassis_num)
 	list_for_each_entry(ptr, &opt_vg_head, opt_rio_list) {
 		if (ptr->chassis_num == chassis_num)
 			return ptr;
-	}		
+	}
 	return NULL;
 }
 
@@ -472,7 +472,7 @@ static int __init combine_wpg_for_chassis (void)
 {
 	struct opt_rio *opt_rio_ptr = NULL;
 	struct rio_detail *rio_detail_ptr = NULL;
-	
+
 	list_for_each_entry(rio_detail_ptr, &rio_vg_head, rio_detail_list) {
 		opt_rio_ptr = search_opt_vg (rio_detail_ptr->chassis_num);
 		if (!opt_rio_ptr) {
@@ -484,14 +484,14 @@ static int __init combine_wpg_for_chassis (void)
 			opt_rio_ptr->first_slot_num = rio_detail_ptr->first_slot_num;
 			opt_rio_ptr->middle_num = rio_detail_ptr->first_slot_num;
 			list_add (&opt_rio_ptr->opt_rio_list, &opt_vg_head);
-		} else {	
+		} else {
 			opt_rio_ptr->first_slot_num = min (opt_rio_ptr->first_slot_num, rio_detail_ptr->first_slot_num);
 			opt_rio_ptr->middle_num = max (opt_rio_ptr->middle_num, rio_detail_ptr->first_slot_num);
-		}	
+		}
 	}
 	print_opt_vg ();
-	return 0;	
-}	
+	return 0;
+}
 
 /*
  * reorganizing linked list of expansion box
@@ -502,7 +502,7 @@ static struct opt_rio_lo *search_opt_lo (u8 chassis_num)
 	list_for_each_entry(ptr, &opt_lo_head, opt_rio_lo_list) {
 		if (ptr->chassis_num == chassis_num)
 			return ptr;
-	}		
+	}
 	return NULL;
 }
 
@@ -510,7 +510,7 @@ static int combine_wpg_for_expansion (void)
 {
 	struct opt_rio_lo *opt_rio_lo_ptr = NULL;
 	struct rio_detail *rio_detail_ptr = NULL;
-	
+
 	list_for_each_entry(rio_detail_ptr, &rio_lo_head, rio_detail_list) {
 		opt_rio_lo_ptr = search_opt_lo (rio_detail_ptr->chassis_num);
 		if (!opt_rio_lo_ptr) {
@@ -522,22 +522,22 @@ static int combine_wpg_for_expansion (void)
 			opt_rio_lo_ptr->first_slot_num = rio_detail_ptr->first_slot_num;
 			opt_rio_lo_ptr->middle_num = rio_detail_ptr->first_slot_num;
 			opt_rio_lo_ptr->pack_count = 1;
-			
+
 			list_add (&opt_rio_lo_ptr->opt_rio_lo_list, &opt_lo_head);
-		} else {	
+		} else {
 			opt_rio_lo_ptr->first_slot_num = min (opt_rio_lo_ptr->first_slot_num, rio_detail_ptr->first_slot_num);
 			opt_rio_lo_ptr->middle_num = max (opt_rio_lo_ptr->middle_num, rio_detail_ptr->first_slot_num);
 			opt_rio_lo_ptr->pack_count = 2;
-		}	
+		}
 	}
-	return 0;	
+	return 0;
 }
-	
+
 
 /* Since we don't know the max slot number per each chassis, hence go
  * through the list of all chassis to find out the range
- * Arguments: slot_num, 1st slot number of the chassis we think we are on, 
- * var (0 = chassis, 1 = expansion box) 
+ * Arguments: slot_num, 1st slot number of the chassis we think we are on,
+ * var (0 = chassis, 1 = expansion box)
  */
 static int first_slot_num (u8 slot_num, u8 first_slot, u8 var)
 {
@@ -547,7 +547,7 @@ static int first_slot_num (u8 slot_num, u8 first_slot, u8 var)
 
 	if (!var) {
 		list_for_each_entry(opt_vg_ptr, &opt_vg_head, opt_rio_list) {
-			if ((first_slot < opt_vg_ptr->first_slot_num) && (slot_num >= opt_vg_ptr->first_slot_num)) { 
+			if ((first_slot < opt_vg_ptr->first_slot_num) && (slot_num >= opt_vg_ptr->first_slot_num)) {
 				rc = -ENODEV;
 				break;
 			}
@@ -569,7 +569,7 @@ static struct opt_rio_lo * find_rxe_num (u8 slot_num)
 
 	list_for_each_entry(opt_lo_ptr, &opt_lo_head, opt_rio_lo_list) {
 		//check to see if this slot_num belongs to expansion box
-		if ((slot_num >= opt_lo_ptr->first_slot_num) && (!first_slot_num (slot_num, opt_lo_ptr->first_slot_num, 1))) 
+		if ((slot_num >= opt_lo_ptr->first_slot_num) && (!first_slot_num (slot_num, opt_lo_ptr->first_slot_num, 1)))
 			return opt_lo_ptr;
 	}
 	return NULL;
@@ -580,8 +580,8 @@ static struct opt_rio * find_chassis_num (u8 slot_num)
 	struct opt_rio *opt_vg_ptr;
 
 	list_for_each_entry(opt_vg_ptr, &opt_vg_head, opt_rio_list) {
-		//check to see if this slot_num belongs to chassis 
-		if ((slot_num >= opt_vg_ptr->first_slot_num) && (!first_slot_num (slot_num, opt_vg_ptr->first_slot_num, 0))) 
+		//check to see if this slot_num belongs to chassis
+		if ((slot_num >= opt_vg_ptr->first_slot_num) && (!first_slot_num (slot_num, opt_vg_ptr->first_slot_num, 0)))
 			return opt_vg_ptr;
 	}
 	return NULL;
@@ -594,13 +594,13 @@ static u8 calculate_first_slot (u8 slot_num)
 {
 	u8 first_slot = 1;
 	struct slot * slot_cur;
-	
+
 	list_for_each_entry(slot_cur, &ibmphp_slot_head, ibm_slot_list) {
 		if (slot_cur->ctrl) {
-			if ((slot_cur->ctrl->ctlr_type != 4) && (slot_cur->ctrl->ending_slot_num > first_slot) && (slot_num > slot_cur->ctrl->ending_slot_num)) 
+			if ((slot_cur->ctrl->ctlr_type != 4) && (slot_cur->ctrl->ending_slot_num > first_slot) && (slot_num > slot_cur->ctrl->ending_slot_num))
 				first_slot = slot_cur->ctrl->ending_slot_num;
 		}
-	}			
+	}
 	return first_slot + 1;
 
 }
@@ -622,11 +622,11 @@ static char *create_file_name (struct slot * slot_cur)
 		err ("Structure passed is empty\n");
 		return NULL;
 	}
-	
+
 	slot_num = slot_cur->number;
 
 	memset (str, 0, sizeof(str));
-	
+
 	if (rio_table_ptr) {
 		if (rio_table_ptr->ver_num == 3) {
 			opt_vg_ptr = find_chassis_num (slot_num);
@@ -660,7 +660,7 @@ static char *create_file_name (struct slot * slot_cur)
 			/* if both NULL and we DO have correct RIO table in BIOS */
 			return NULL;
 		}
-	} 
+	}
 	if (!flag) {
 		if (slot_cur->ctrl->ctlr_type == 4) {
 			first_slot = calculate_first_slot (slot_num);
@@ -798,7 +798,7 @@ static int __init ebda_rsrc_controller (void)
 			slot_ptr->ctl_index = readb (io_mem + addr_slot + 2*slot_num);
 			slot_ptr->slot_cap = readb (io_mem + addr_slot + 3*slot_num);
 
-			// create bus_info lined list --- if only one slot per bus: slot_min = slot_max 
+			// create bus_info lined list --- if only one slot per bus: slot_min = slot_max
 
 			bus_info_ptr2 = ibmphp_find_same_bus_num (slot_ptr->slot_bus_num);
 			if (!bus_info_ptr2) {
@@ -814,9 +814,9 @@ static int __init ebda_rsrc_controller (void)
 				bus_info_ptr1->index = bus_index++;
 				bus_info_ptr1->current_speed = 0xff;
 				bus_info_ptr1->current_bus_mode = 0xff;
-				
+
 				bus_info_ptr1->controller_id = hpc_ptr->ctlr_id;
-				
+
 				list_add_tail (&bus_info_ptr1->bus_info_list, &bus_info_head);
 
 			} else {
@@ -851,7 +851,7 @@ static int __init ebda_rsrc_controller (void)
 				bus_info_ptr2->slots_at_66_conv = bus_ptr->slots_at_66_conv;
 				bus_info_ptr2->slots_at_66_pcix = bus_ptr->slots_at_66_pcix;
 				bus_info_ptr2->slots_at_100_pcix = bus_ptr->slots_at_100_pcix;
-				bus_info_ptr2->slots_at_133_pcix = bus_ptr->slots_at_133_pcix; 
+				bus_info_ptr2->slots_at_133_pcix = bus_ptr->slots_at_133_pcix;
 			}
 			bus_ptr++;
 		}
@@ -864,7 +864,7 @@ static int __init ebda_rsrc_controller (void)
 				hpc_ptr->u.pci_ctlr.dev_fun = readb (io_mem + addr + 1);
 				hpc_ptr->irq = readb (io_mem + addr + 2);
 				addr += 3;
-				debug ("ctrl bus = %x, ctlr devfun = %x, irq = %x\n", 
+				debug ("ctrl bus = %x, ctlr devfun = %x, irq = %x\n",
 					hpc_ptr->u.pci_ctlr.bus,
 					hpc_ptr->u.pci_ctlr.dev_fun, hpc_ptr->irq);
 				break;
@@ -932,7 +932,7 @@ static int __init ebda_rsrc_controller (void)
 				tmp_slot->supported_speed =  2;
 			else if ((hpc_ptr->slots[index].slot_cap & EBDA_SLOT_66_MAX) == EBDA_SLOT_66_MAX)
 				tmp_slot->supported_speed =  1;
-				
+
 			if ((hpc_ptr->slots[index].slot_cap & EBDA_SLOT_PCIX_CAP) == EBDA_SLOT_PCIX_CAP)
 				tmp_slot->supported_bus_mode = 1;
 			else
@@ -1000,7 +1000,7 @@ error_no_hpc:
 	return rc;
 }
 
-/* 
+/*
  * map info (bus, devfun, start addr, end addr..) of i/o, memory,
  * pfm from the physical addr to a list of resource.
  */
@@ -1057,7 +1057,7 @@ static int __init ebda_rsrc_rsrc (void)
 			addr += 10;
 
 			debug ("rsrc from mem or pfm ---\n");
-			debug ("rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n", 
+			debug ("rsrc type: %x bus#: %x dev_func: %x start addr: %x end addr: %x\n",
 				rsrc_ptr->rsrc_type, rsrc_ptr->bus_num, rsrc_ptr->dev_fun, rsrc_ptr->start_addr, rsrc_ptr->end_addr);
 
 			list_add (&rsrc_ptr->ebda_pci_rsrc_list, &ibmphp_ebda_pci_rsrc_head);
@@ -1096,7 +1096,7 @@ struct bus_info *ibmphp_find_same_bus_num (u32 num)
 	struct bus_info *ptr;
 
 	list_for_each_entry(ptr, &bus_info_head, bus_info_list) {
-		if (ptr->busno == num) 
+		if (ptr->busno == num)
 			 return ptr;
 	}
 	return NULL;
@@ -1110,7 +1110,7 @@ int ibmphp_get_bus_index (u8 num)
 	struct bus_info *ptr;
 
 	list_for_each_entry(ptr, &bus_info_head, bus_info_list) {
-		if (ptr->busno == num)  
+		if (ptr->busno == num)
 			return ptr->index;
 	}
 	return -ENODEV;
@@ -1168,7 +1168,7 @@ static struct pci_device_id id_table[] = {
 		.subdevice	= HPC_SUBSYSTEM_ID,
 		.class		= ((PCI_CLASS_SYSTEM_PCI_HOTPLUG << 8) | 0x00),
 	}, {}
-};		
+};
 
 MODULE_DEVICE_TABLE(pci, id_table);
 
@@ -1197,7 +1197,7 @@ static int ibmphp_probe (struct pci_dev * dev, const struct pci_device_id *ids)
 	struct controller *ctrl;
 
 	debug ("inside ibmphp_probe\n");
-	
+
 	list_for_each_entry(ctrl, &ebda_hpc_head, ebda_hpc_list) {
 		if (ctrl->ctlr_type == 1) {
 			if ((dev->devfn == ctrl->u.pci_ctlr.dev_fun) && (dev->bus->number == ctrl->u.pci_ctlr.bus)) {
@@ -1210,4 +1210,3 @@ static int ibmphp_probe (struct pci_dev * dev, const struct pci_device_id *ids)
 	}
 	return -ENODEV;
 }
-
diff --git a/drivers/pci/hotplug/ibmphp_hpc.c b/drivers/pci/hotplug/ibmphp_hpc.c
index f59ed30512b5..5fc7a089f532 100644
--- a/drivers/pci/hotplug/ibmphp_hpc.c
+++ b/drivers/pci/hotplug/ibmphp_hpc.c
@@ -258,7 +258,7 @@ static u8 i2c_ctrl_write (struct controller *ctlr_ptr, void __iomem *WPGBbar, u8
 {
 	u8 rc;
 	void __iomem *wpg_addr;	// base addr + offset
-	unsigned long wpg_data;	// data to/from WPG LOHI format 
+	unsigned long wpg_data;	// data to/from WPG LOHI format
 	unsigned long ultemp;
 	unsigned long data;	// actual data HILO format
 	int i;
@@ -351,7 +351,7 @@ static u8 i2c_ctrl_write (struct controller *ctlr_ptr, void __iomem *WPGBbar, u8
 }
 
 //------------------------------------------------------------
-//  Read from ISA type HPC 
+//  Read from ISA type HPC
 //------------------------------------------------------------
 static u8 isa_ctrl_read (struct controller *ctlr_ptr, u8 offset)
 {
@@ -372,7 +372,7 @@ static void isa_ctrl_write (struct controller *ctlr_ptr, u8 offset, u8 data)
 {
 	u16 start_address;
 	u16 port_address;
-	
+
 	start_address = ctlr_ptr->u.isa_ctlr.io_start;
 	port_address = start_address + (u16) offset;
 	outb (data, port_address);
@@ -656,11 +656,11 @@ int ibmphp_hpc_readslot (struct slot * pslot, u8 cmd, u8 * pstatus)
 	//--------------------------------------------------------------------
 	// cleanup
 	//--------------------------------------------------------------------
-	
+
 	// remove physical to logical address mapping
 	if ((ctlr_ptr->ctlr_type == 2) || (ctlr_ptr->ctlr_type == 4))
 		iounmap (wpg_bbar);
-	
+
 	free_hpc_access ();
 
 	debug_polling ("%s - Exit rc[%d]\n", __func__, rc);
@@ -835,7 +835,7 @@ static int poll_hpc(void *data)
 		down (&semOperations);
 
 		switch (poll_state) {
-		case POLL_LATCH_REGISTER: 
+		case POLL_LATCH_REGISTER:
 			oldlatchlow = curlatchlow;
 			ctrl_count = 0x00;
 			list_for_each (pslotlist, &ibmphp_slot_head) {
@@ -892,16 +892,16 @@ static int poll_hpc(void *data)
 
 			if (kthread_should_stop())
 				goto out_sleep;
-			
+
 			down (&semOperations);
-			
+
 			if (poll_count >= POLL_LATCH_CNT) {
 				poll_count = 0;
 				poll_state = POLL_SLOTS;
 			} else
 				poll_state = POLL_LATCH_REGISTER;
 			break;
-		}	
+		}
 		/* give up the hardware semaphore */
 		up (&semOperations);
 		/* sleep for a short time just for good measure */
@@ -958,7 +958,7 @@ static int process_changeinstatus (struct slot *pslot, struct slot *poldslot)
 	// bit 5 - HPC_SLOT_PWRGD
 	if ((pslot->status & 0x20) != (poldslot->status & 0x20))
 		// OFF -> ON: ignore, ON -> OFF: disable slot
-		if ((poldslot->status & 0x20) && (SLOT_CONNECT (poldslot->status) == HPC_SLOT_CONNECTED) && (SLOT_PRESENT (poldslot->status))) 
+		if ((poldslot->status & 0x20) && (SLOT_CONNECT (poldslot->status) == HPC_SLOT_CONNECTED) && (SLOT_PRESENT (poldslot->status)))
 			disable = 1;
 
 	// bit 6 - HPC_SLOT_BUS_SPEED
@@ -980,7 +980,7 @@ static int process_changeinstatus (struct slot *pslot, struct slot *poldslot)
 					pslot->status &= ~HPC_SLOT_POWER;
 			}
 		}
-		// CLOSE -> OPEN 
+		// CLOSE -> OPEN
 		else if ((SLOT_PWRGD (poldslot->status) == HPC_SLOT_PWRGD_GOOD)
 			&& (SLOT_CONNECT (poldslot->status) == HPC_SLOT_CONNECTED) && (SLOT_PRESENT (poldslot->status))) {
 			disable = 1;
@@ -1075,7 +1075,7 @@ void __exit ibmphp_hpc_stop_poll_thread (void)
 	debug ("before locking operations \n");
 	ibmphp_lock_operations ();
 	debug ("after locking operations \n");
-	
+
 	// wait for poll thread to exit
 	debug ("before sem_exit down \n");
 	down (&sem_exit);
diff --git a/drivers/pci/hotplug/ibmphp_pci.c b/drivers/pci/hotplug/ibmphp_pci.c
index c60f5f3e838d..639ea3a75e14 100644
--- a/drivers/pci/hotplug/ibmphp_pci.c
+++ b/drivers/pci/hotplug/ibmphp_pci.c
@@ -1,8 +1,8 @@
 /*
  * IBM Hot Plug Controller Driver
- * 
+ *
  * Written By: Irene Zubarev, IBM Corporation
- * 
+ *
  * Copyright (C) 2001 Greg Kroah-Hartman (greg@kroah.com)
  * Copyright (C) 2001,2002 IBM Corp.
  *
@@ -42,7 +42,7 @@ static u8 find_sec_number (u8 primary_busno, u8 slotno);
 
 /*
  * NOTE..... If BIOS doesn't provide default routing, we assign:
- * 9 for SCSI, 10 for LAN adapters, and 11 for everything else. 
+ * 9 for SCSI, 10 for LAN adapters, and 11 for everything else.
  * If adapter is bridged, then we assign 11 to it and devices behind it.
  * We also assign the same irq numbers for multi function devices.
  * These are PIC mode, so shouldn't matter n.e.ways (hopefully)
@@ -71,11 +71,11 @@ static void assign_alt_irq (struct pci_func * cur_func, u8 class_code)
  * Configures the device to be added (will allocate needed resources if it
  * can), the device can be a bridge or a regular pci device, can also be
  * multi-functional
- * 
+ *
  * Input: function to be added
- * 
+ *
  * TO DO:  The error case with Multifunction device or multi function bridge,
- * if there is an error, will need to go through all previous functions and 
+ * if there is an error, will need to go through all previous functions and
  * unconfigure....or can add some code into unconfigure_card....
  */
 int ibmphp_configure_card (struct pci_func *func, u8 slotno)
@@ -98,7 +98,7 @@ int ibmphp_configure_card (struct pci_func *func, u8 slotno)
 	cur_func = func;
 
 	/* We only get bus and device from IRQ routing table.  So at this point,
-	 * func->busno is correct, and func->device contains only device (at the 5 
+	 * func->busno is correct, and func->device contains only device (at the 5
 	 * highest bits)
 	 */
 
@@ -151,7 +151,7 @@ int ibmphp_configure_card (struct pci_func *func, u8 slotno)
 						     cur_func->device, cur_func->busno);
 						cleanup_count = 6;
 						goto error;
-					}	
+					}
 					cur_func->next = NULL;
 					function = 0x8;
 					break;
@@ -339,7 +339,7 @@ error:
 }
 
 /*
- * This function configures the pci BARs of a single device.  
+ * This function configures the pci BARs of a single device.
  * Input: pointer to the pci_func
  * Output: configured PCI, 0, or error
  */
@@ -371,17 +371,17 @@ static int configure_device (struct pci_func *func)
 
 	for (count = 0; address[count]; count++) {	/* for 6 BARs */
 
-		/* not sure if i need this.  per scott, said maybe need smth like this
+		/* not sure if i need this.  per scott, said maybe need * something like this
 		   if devices don't adhere 100% to the spec, so don't want to write
 		   to the reserved bits
 
-		pcibios_read_config_byte(cur_func->busno, cur_func->device, 
+		pcibios_read_config_byte(cur_func->busno, cur_func->device,
 		PCI_BASE_ADDRESS_0 + 4 * count, &tmp);
 		if (tmp & 0x01) // IO
-			pcibios_write_config_dword(cur_func->busno, cur_func->device, 
+			pcibios_write_config_dword(cur_func->busno, cur_func->device,
 			PCI_BASE_ADDRESS_0 + 4 * count, 0xFFFFFFFD);
 		else  // Memory
-			pcibios_write_config_dword(cur_func->busno, cur_func->device, 
+			pcibios_write_config_dword(cur_func->busno, cur_func->device,
 			PCI_BASE_ADDRESS_0 + 4 * count, 0xFFFFFFFF);
 		 */
 		pci_bus_write_config_dword (ibmphp_pci_bus, devfn, address[count], 0xFFFFFFFF);
@@ -421,8 +421,8 @@ static int configure_device (struct pci_func *func)
 				return -EIO;
 			}
 			pci_bus_write_config_dword (ibmphp_pci_bus, devfn, address[count], func->io[count]->start);
-	
-			/* _______________This is for debugging purposes only_____________________ */ 
+
+			/* _______________This is for debugging purposes only_____________________ */
 			debug ("b4 writing, the IO address is %x\n", func->io[count]->start);
 			pci_bus_read_config_dword (ibmphp_pci_bus, devfn, address[count], &bar[count]);
 			debug ("after writing.... the start address is %x\n", bar[count]);
@@ -484,7 +484,7 @@ static int configure_device (struct pci_func *func)
 
 				pci_bus_write_config_dword (ibmphp_pci_bus, devfn, address[count], func->pfmem[count]->start);
 
-				/*_______________This is for debugging purposes only______________________________*/				
+				/*_______________This is for debugging purposes only______________________________*/
 				debug ("b4 writing, start address is %x\n", func->pfmem[count]->start);
 				pci_bus_read_config_dword (ibmphp_pci_bus, devfn, address[count], &bar[count]);
 				debug ("after writing, start address is %x\n", bar[count]);
@@ -559,7 +559,7 @@ static int configure_device (struct pci_func *func)
 /******************************************************************************
  * This routine configures a PCI-2-PCI bridge and the functions behind it
  * Parameters: pci_func
- * Returns: 
+ * Returns:
  ******************************************************************************/
 static int configure_bridge (struct pci_func **func_passed, u8 slotno)
 {
@@ -622,7 +622,7 @@ static int configure_bridge (struct pci_func **func_passed, u8 slotno)
 	debug ("AFTER FIND_SEC_NUMBER, func->busno IS %x\n", func->busno);
 
 	pci_bus_write_config_byte (ibmphp_pci_bus, devfn, PCI_SECONDARY_BUS, sec_number);
-	
+
 	/* __________________For debugging purposes only __________________________________
 	pci_bus_read_config_byte (ibmphp_pci_bus, devfn, PCI_SECONDARY_BUS, &sec_number);
 	debug ("sec_number after write/read is %x\n", sec_number);
@@ -644,7 +644,7 @@ static int configure_bridge (struct pci_func **func_passed, u8 slotno)
 
 
 	/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-	   !!!!!!!!!!!!!!!NEED TO ADD!!!  FAST BACK-TO-BACK ENABLE!!!!!!!!!!!!!!!!!!!! 
+	   !!!!!!!!!!!!!!!NEED TO ADD!!!  FAST BACK-TO-BACK ENABLE!!!!!!!!!!!!!!!!!!!!
 	   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!*/
 
 
@@ -670,7 +670,7 @@ static int configure_bridge (struct pci_func **func_passed, u8 slotno)
 			debug ("len[count] in IO = %x\n", len[count]);
 
 			bus_io[count] = kzalloc(sizeof(struct resource_node), GFP_KERNEL);
-		
+
 			if (!bus_io[count]) {
 				err ("out of system memory\n");
 				retval = -ENOMEM;
@@ -735,7 +735,7 @@ static int configure_bridge (struct pci_func **func_passed, u8 slotno)
 						ibmphp_add_pfmem_from_mem (bus_pfmem[count]);
 						func->pfmem[count] = bus_pfmem[count];
 					} else {
-						err ("cannot allocate requested pfmem for bus %x, device %x, len %x\n", 
+						err ("cannot allocate requested pfmem for bus %x, device %x, len %x\n",
 						     func->busno, func->device, len[count]);
 						kfree (mem_tmp);
 						kfree (bus_pfmem[count]);
@@ -805,7 +805,7 @@ static int configure_bridge (struct pci_func **func_passed, u8 slotno)
 	debug ("amount_needed->mem = %x\n", amount_needed->mem);
 	debug ("amount_needed->pfmem =  %x\n", amount_needed->pfmem);
 
-	if (amount_needed->not_correct) {		
+	if (amount_needed->not_correct) {
 		debug ("amount_needed is not correct\n");
 		for (count = 0; address[count]; count++) {
 			/* for 2 BARs */
@@ -830,7 +830,7 @@ static int configure_bridge (struct pci_func **func_passed, u8 slotno)
 	} else {
 		debug ("it wants %x IO behind the bridge\n", amount_needed->io);
 		io = kzalloc(sizeof(*io), GFP_KERNEL);
-		
+
 		if (!io) {
 			err ("out of system memory\n");
 			retval = -ENOMEM;
@@ -959,7 +959,7 @@ static int configure_bridge (struct pci_func **func_passed, u8 slotno)
 
 		if (bus->noIORanges) {
 			pci_bus_write_config_byte (ibmphp_pci_bus, devfn, PCI_IO_BASE, 0x00 | bus->rangeIO->start >> 8);
-			pci_bus_write_config_byte (ibmphp_pci_bus, devfn, PCI_IO_LIMIT, 0x00 | bus->rangeIO->end >> 8);	
+			pci_bus_write_config_byte (ibmphp_pci_bus, devfn, PCI_IO_LIMIT, 0x00 | bus->rangeIO->end >> 8);
 
 			/* _______________This is for debugging purposes only ____________________
 			pci_bus_read_config_byte (ibmphp_pci_bus, devfn, PCI_IO_BASE, &temp);
@@ -980,7 +980,7 @@ static int configure_bridge (struct pci_func **func_passed, u8 slotno)
 		if (bus->noMemRanges) {
 			pci_bus_write_config_word (ibmphp_pci_bus, devfn, PCI_MEMORY_BASE, 0x0000 | bus->rangeMem->start >> 16);
 			pci_bus_write_config_word (ibmphp_pci_bus, devfn, PCI_MEMORY_LIMIT, 0x0000 | bus->rangeMem->end >> 16);
-			
+
 			/* ____________________This is for debugging purposes only ________________________
 			pci_bus_read_config_word (ibmphp_pci_bus, devfn, PCI_MEMORY_BASE, &temp);
 			debug ("mem_base = %x\n", (temp & PCI_MEMORY_RANGE_TYPE_MASK) << 16);
@@ -1017,7 +1017,7 @@ static int configure_bridge (struct pci_func **func_passed, u8 slotno)
 		pci_bus_read_config_byte (ibmphp_pci_bus, devfn, PCI_INTERRUPT_PIN, &irq);
 		if ((irq > 0x00) && (irq < 0x05))
 			pci_bus_write_config_byte (ibmphp_pci_bus, devfn, PCI_INTERRUPT_LINE, func->irq[irq - 1]);
-		/*    
+		/*
 		pci_bus_write_config_byte (ibmphp_pci_bus, devfn, PCI_BRIDGE_CONTROL, ctrl);
 		pci_bus_write_config_byte (ibmphp_pci_bus, devfn, PCI_BRIDGE_CONTROL, PCI_BRIDGE_CTL_PARITY);
 		pci_bus_write_config_byte (ibmphp_pci_bus, devfn, PCI_BRIDGE_CONTROL, PCI_BRIDGE_CTL_SERR);
@@ -1071,7 +1071,7 @@ error:
  * This function adds up the amount of resources needed behind the PPB bridge
  * and passes it to the configure_bridge function
  * Input: bridge function
- * Ouput: amount of resources needed
+ * Output: amount of resources needed
  *****************************************************************************/
 static struct res_needed *scan_behind_bridge (struct pci_func * func, u8 busno)
 {
@@ -1204,9 +1204,9 @@ static struct res_needed *scan_behind_bridge (struct pci_func * func, u8 busno)
 	return amount;
 }
 
-/* The following 3 unconfigure_boot_ routines deal with the case when we had the card 
- * upon bootup in the system, since we don't allocate func to such case, we need to read 
- * the start addresses from pci config space and then find the corresponding entries in 
+/* The following 3 unconfigure_boot_ routines deal with the case when we had the card
+ * upon bootup in the system, since we don't allocate func to such case, we need to read
+ * the start addresses from pci config space and then find the corresponding entries in
  * our resource lists.  The functions return either 0, -ENODEV, or -1 (general failure)
  * Change: we also call these functions even if we configured the card ourselves (i.e., not
  * the bootup case), since it should work same way
@@ -1561,8 +1561,8 @@ static int unconfigure_boot_card (struct slot *slot_cur)
  * unconfiguring the device
  * TO DO:  will probably need to add some code in case there was some resource,
  * to remove it... this is from when we have errors in the configure_card...
- * 			!!!!!!!!!!!!!!!!!!!!!!!!!FOR BUSES!!!!!!!!!!!!
- * Returns: 0, -1, -ENODEV 
+ *			!!!!!!!!!!!!!!!!!!!!!!!!!FOR BUSES!!!!!!!!!!!!
+ * Returns: 0, -1, -ENODEV
  */
 int ibmphp_unconfigure_card (struct slot **slot_cur, int the_end)
 {
@@ -1634,7 +1634,7 @@ int ibmphp_unconfigure_card (struct slot **slot_cur, int the_end)
  * Input: bus and the amount of resources needed (we know we can assign those,
  *        since they've been checked already
  * Output: bus added to the correct spot
- *         0, -1, error 
+ *         0, -1, error
  */
 static int add_new_bus (struct bus_node *bus, struct resource_node *io, struct resource_node *mem, struct resource_node *pfmem, u8 parent_busno)
 {
@@ -1650,7 +1650,7 @@ static int add_new_bus (struct bus_node *bus, struct resource_node *io, struct r
 			err ("strange, cannot find bus which is supposed to be at the system... something is terribly wrong...\n");
 			return -ENODEV;
 		}
-	
+
 		list_add (&bus->bus_list, &cur_bus->bus_list);
 	}
 	if (io) {
@@ -1679,7 +1679,7 @@ static int add_new_bus (struct bus_node *bus, struct resource_node *io, struct r
 	}
 	if (pfmem) {
 		pfmem_range = kzalloc(sizeof(*pfmem_range), GFP_KERNEL);
-		if (!pfmem_range) {	
+		if (!pfmem_range) {
 			err ("out of system memory\n");
 			return -ENOMEM;
 		}
@@ -1726,4 +1726,3 @@ static u8 find_sec_number (u8 primary_busno, u8 slotno)
 		return busno;
 	return 0xff;
 }
-
diff --git a/drivers/pci/hotplug/ibmphp_res.c b/drivers/pci/hotplug/ibmphp_res.c
index e2dc289f767c..a265acb2d518 100644
--- a/drivers/pci/hotplug/ibmphp_res.c
+++ b/drivers/pci/hotplug/ibmphp_res.c
@@ -72,7 +72,7 @@ static struct bus_node * __init alloc_error_bus (struct ebda_pci_rsrc * curr, u8
 static struct resource_node * __init alloc_resources (struct ebda_pci_rsrc * curr)
 {
 	struct resource_node *rs;
-	
+
 	if (!curr) {
 		err ("NULL passed to allocate\n");
 		return NULL;
@@ -128,7 +128,7 @@ static int __init alloc_bus_range (struct bus_node **new_bus, struct range_node
 	}
 	newrange->start = curr->start_addr;
 	newrange->end = curr->end_addr;
-		
+
 	if (first_bus || (!num_ranges))
 		newrange->rangeno = 1;
 	else {
@@ -162,7 +162,7 @@ static int __init alloc_bus_range (struct bus_node **new_bus, struct range_node
 			newbus->rangePFMem = newrange;
 			if (first_bus)
 				newbus->noPFMemRanges = 1;
-			else {	
+			else {
 				debug ("1st PFMemory Primary on Bus %x [%x - %x]\n", newbus->busno, newrange->start, newrange->end);
 				++newbus->noPFMemRanges;
 				fix_resources (newbus);
@@ -190,7 +190,7 @@ static int __init alloc_bus_range (struct bus_node **new_bus, struct range_node
  * This is the Resource Management initialization function.  It will go through
  * the Resource list taken from EBDA and fill in this module's data structures
  *
- * THIS IS NOT TAKING INTO CONSIDERATION IO RESTRICTIONS OF PRIMARY BUSES, 
+ * THIS IS NOT TAKING INTO CONSIDERATION IO RESTRICTIONS OF PRIMARY BUSES,
  * SINCE WE'RE GOING TO ASSUME FOR NOW WE DON'T HAVE THOSE ON OUR BUSES FOR NOW
  *
  * Input: ptr to the head of the resource list from EBDA
@@ -382,7 +382,7 @@ int __init ibmphp_rsrc_init (void)
  * pci devices' resources for the appropriate resource
  *
  * Input: type of the resource, range to add, current bus
- * Output: 0 or -1, bus and range ptrs 
+ * Output: 0 or -1, bus and range ptrs
  ********************************************************************************/
 static int add_bus_range (int type, struct range_node *range, struct bus_node *bus_cur)
 {
@@ -466,7 +466,7 @@ static void update_resources (struct bus_node *bus_cur, int type, int rangeno)
 
 	switch (type) {
 		case MEM:
-			if (bus_cur->firstMem) 
+			if (bus_cur->firstMem)
 				res = bus_cur->firstMem;
 			break;
 		case PFMEM:
@@ -583,7 +583,7 @@ static void fix_resources (struct bus_node *bus_cur)
 }
 
 /*******************************************************************************
- * This routine adds a resource to the list of resources to the appropriate bus 
+ * This routine adds a resource to the list of resources to the appropriate bus
  * based on their resource type and sorted by their starting addresses.  It assigns
  * the ptrs to next and nextRange if needed.
  *
@@ -605,11 +605,11 @@ int ibmphp_add_resource (struct resource_node *res)
 		err ("NULL passed to add\n");
 		return -ENODEV;
 	}
-	
+
 	bus_cur = find_bus_wprev (res->busno, NULL, 0);
-	
+
 	if (!bus_cur) {
-		/* didn't find a bus, smth's wrong!!! */
+		/* didn't find a bus, something's wrong!!! */
 		debug ("no bus in the system, either pci_dev's wrong or allocation failed\n");
 		return -ENODEV;
 	}
@@ -648,7 +648,7 @@ int ibmphp_add_resource (struct resource_node *res)
 	if (!range_cur) {
 		switch (res->type) {
 			case IO:
-				++bus_cur->needIOUpdate;					
+				++bus_cur->needIOUpdate;
 				break;
 			case MEM:
 				++bus_cur->needMemUpdate;
@@ -659,13 +659,13 @@ int ibmphp_add_resource (struct resource_node *res)
 		}
 		res->rangeno = -1;
 	}
-	
+
 	debug ("The range is %d\n", res->rangeno);
 	if (!res_start) {
 		/* no first{IO,Mem,Pfmem} on the bus, 1st IO/Mem/Pfmem resource ever */
 		switch (res->type) {
 			case IO:
-				bus_cur->firstIO = res;					
+				bus_cur->firstIO = res;
 				break;
 			case MEM:
 				bus_cur->firstMem = res;
@@ -673,7 +673,7 @@ int ibmphp_add_resource (struct resource_node *res)
 			case PFMEM:
 				bus_cur->firstPFMem = res;
 				break;
-		}	
+		}
 		res->next = NULL;
 		res->nextRange = NULL;
 	} else {
@@ -770,7 +770,7 @@ int ibmphp_add_resource (struct resource_node *res)
  * This routine will remove the resource from the list of resources
  *
  * Input: io, mem, and/or pfmem resource to be deleted
- * Ouput: modified resource list
+ * Output: modified resource list
  *        0 or error code
  ****************************************************************************/
 int ibmphp_remove_resource (struct resource_node *res)
@@ -825,7 +825,7 @@ int ibmphp_remove_resource (struct resource_node *res)
 
 	if (!res_cur) {
 		if (res->type == PFMEM) {
-			/* 
+			/*
 			 * case where pfmem might be in the PFMemFromMem list
 			 * so will also need to remove the corresponding mem
 			 * entry
@@ -961,12 +961,12 @@ static struct range_node * find_range (struct bus_node *bus_cur, struct resource
 }
 
 /*****************************************************************************
- * This routine will check to make sure the io/mem/pfmem->len that the device asked for 
+ * This routine will check to make sure the io/mem/pfmem->len that the device asked for
  * can fit w/i our list of available IO/MEM/PFMEM resources.  If cannot, returns -EINVAL,
  * otherwise, returns 0
  *
  * Input: resource
- * Ouput: the correct start and end address are inputted into the resource node,
+ * Output: the correct start and end address are inputted into the resource node,
  *        0 or -EINVAL
  *****************************************************************************/
 int ibmphp_check_resource (struct resource_node *res, u8 bridge)
@@ -996,7 +996,7 @@ int ibmphp_check_resource (struct resource_node *res, u8 bridge)
 	bus_cur = find_bus_wprev (res->busno, NULL, 0);
 
 	if (!bus_cur) {
-		/* didn't find a bus, smth's wrong!!! */
+		/* didn't find a bus, something's wrong!!! */
 		debug ("no bus in the system, either pci_dev's wrong or allocation failed\n");
 		return -EINVAL;
 	}
@@ -1066,7 +1066,7 @@ int ibmphp_check_resource (struct resource_node *res, u8 bridge)
 								break;
 						}
 					}
-			
+
 					if (flag && len_cur == res->len) {
 						debug ("but we are not here, right?\n");
 						res->start = start_cur;
@@ -1118,10 +1118,10 @@ int ibmphp_check_resource (struct resource_node *res, u8 bridge)
 		if (res_prev) {
 			if (res_prev->rangeno != res_cur->rangeno) {
 				/* 1st device on this range */
-				if ((res_cur->start != range->start) && 
+				if ((res_cur->start != range->start) &&
 					((len_tmp = res_cur->start - 1 - range->start) >= res->len)) {
 					if ((len_tmp < len_cur) || (len_cur == 0)) {
-						if ((range->start % tmp_divide) == 0) {	
+						if ((range->start % tmp_divide) == 0) {
 							/* just perfect, starting address is divisible by length */
 							flag = 1;
 							len_cur = len_tmp;
@@ -1344,7 +1344,7 @@ int ibmphp_check_resource (struct resource_node *res, u8 bridge)
  * This routine is called from remove_card if the card contained PPB.
  * It will remove all the resources on the bus as well as the bus itself
  * Input: Bus
- * Ouput: 0, -ENODEV
+ * Output: 0, -ENODEV
  ********************************************************************************/
 int ibmphp_remove_bus (struct bus_node *bus, u8 parent_busno)
 {
@@ -1353,7 +1353,7 @@ int ibmphp_remove_bus (struct bus_node *bus, u8 parent_busno)
 	struct bus_node *prev_bus;
 	int rc;
 
-	prev_bus = find_bus_wprev (parent_busno, NULL, 0);	
+	prev_bus = find_bus_wprev (parent_busno, NULL, 0);
 
 	if (!prev_bus) {
 		debug ("something terribly wrong. Cannot find parent bus to the one to remove\n");
@@ -1424,7 +1424,7 @@ int ibmphp_remove_bus (struct bus_node *bus, u8 parent_busno)
 }
 
 /******************************************************************************
- * This routine deletes the ranges from a given bus, and the entries from the 
+ * This routine deletes the ranges from a given bus, and the entries from the
  * parent's bus in the resources
  * Input: current bus, previous bus
  * Output: 0, -EINVAL
@@ -1453,7 +1453,7 @@ static int remove_ranges (struct bus_node *bus_cur, struct bus_node *bus_prev)
 	if (bus_cur->noMemRanges) {
 		range_cur = bus_cur->rangeMem;
 		for (i = 0; i < bus_cur->noMemRanges; i++) {
-			if (ibmphp_find_resource (bus_prev, range_cur->start, &res, MEM) < 0) 
+			if (ibmphp_find_resource (bus_prev, range_cur->start, &res, MEM) < 0)
 				return -EINVAL;
 
 			ibmphp_remove_resource (res);
@@ -1467,7 +1467,7 @@ static int remove_ranges (struct bus_node *bus_cur, struct bus_node *bus_prev)
 	if (bus_cur->noPFMemRanges) {
 		range_cur = bus_cur->rangePFMem;
 		for (i = 0; i < bus_cur->noPFMemRanges; i++) {
-			if (ibmphp_find_resource (bus_prev, range_cur->start, &res, PFMEM) < 0) 
+			if (ibmphp_find_resource (bus_prev, range_cur->start, &res, PFMEM) < 0)
 				return -EINVAL;
 
 			ibmphp_remove_resource (res);
@@ -1482,7 +1482,7 @@ static int remove_ranges (struct bus_node *bus_cur, struct bus_node *bus_prev)
 }
 
 /*
- * find the resource node in the bus 
+ * find the resource node in the bus
  * Input: Resource needed, start address of the resource, type of resource
  */
 int ibmphp_find_resource (struct bus_node *bus, u32 start_address, struct resource_node **res, int flag)
@@ -1512,7 +1512,7 @@ int ibmphp_find_resource (struct bus_node *bus, u32 start_address, struct resour
 			err ("wrong type of flag\n");
 			return -EINVAL;
 	}
-	
+
 	while (res_cur) {
 		if (res_cur->start == start_address) {
 			*res = res_cur;
@@ -1718,7 +1718,7 @@ static int __init once_over (void)
 			}	/* end for pfmem */
 		}	/* end if */
 	}	/* end list_for_each bus */
-	return 0; 
+	return 0;
 }
 
 int ibmphp_add_pfmem_from_mem (struct resource_node *pfmem)
@@ -1760,9 +1760,9 @@ static struct bus_node *find_bus_wprev (u8 bus_number, struct bus_node **prev, u
 	list_for_each (tmp, &gbuses) {
 		tmp_prev = tmp->prev;
 		bus_cur = list_entry (tmp, struct bus_node, bus_list);
-		if (flag) 
+		if (flag)
 			*prev = list_entry (tmp_prev, struct bus_node, bus_list);
-		if (bus_cur->busno == bus_number) 
+		if (bus_cur->busno == bus_number)
 			return bus_cur;
 	}
 
@@ -1776,7 +1776,7 @@ void ibmphp_print_test (void)
 	struct range_node *range;
 	struct resource_node *res;
 	struct list_head *tmp;
-	
+
 	debug_pci ("*****************START**********************\n");
 
 	if ((!list_empty(&gbuses)) && flags) {
@@ -1906,7 +1906,7 @@ static int range_exists_already (struct range_node * range, struct bus_node * bu
 			return 1;
 		range_cur = range_cur->next;
 	}
-	
+
 	return 0;
 }
 
@@ -1920,7 +1920,7 @@ static int range_exists_already (struct range_node * range, struct bus_node * bu
  * Returns: none
  * Note: this function doesn't take into account IO restrictions etc,
  *	 so will only work for bridges with no video/ISA devices behind them It
- *	 also will not work for onboard PPB's that can have more than 1 *bus
+ *	 also will not work for onboard PPBs that can have more than 1 *bus
  *	 behind them All these are TO DO.
  *	 Also need to add more error checkings... (from fnc returns etc)
  */
@@ -1963,7 +1963,7 @@ static int __init update_bridge_ranges (struct bus_node **bus)
 					case PCI_HEADER_TYPE_BRIDGE:
 						function = 0x8;
 					case PCI_HEADER_TYPE_MULTIBRIDGE:
-						/* We assume here that only 1 bus behind the bridge 
+						/* We assume here that only 1 bus behind the bridge
 						   TO DO: add functionality for several:
 						   temp = secondary;
 						   while (temp < subordinate) {
@@ -1972,7 +1972,7 @@ static int __init update_bridge_ranges (struct bus_node **bus)
 						   }
 						 */
 						pci_bus_read_config_byte (ibmphp_pci_bus, devfn, PCI_SECONDARY_BUS, &sec_busno);
-						bus_sec = find_bus_wprev (sec_busno, NULL, 0); 
+						bus_sec = find_bus_wprev (sec_busno, NULL, 0);
 						/* this bus structure doesn't exist yet, PPB was configured during previous loading of ibmphp */
 						if (!bus_sec) {
 							bus_sec = alloc_error_bus (NULL, sec_busno, 1);
@@ -2028,7 +2028,7 @@ static int __init update_bridge_ranges (struct bus_node **bus)
 								io->len = io->end - io->start + 1;
 								ibmphp_add_resource (io);
 							}
-						}	
+						}
 
 						pci_bus_read_config_word (ibmphp_pci_bus, devfn, PCI_MEMORY_BASE, &start_mem_address);
 						pci_bus_read_config_word (ibmphp_pci_bus, devfn, PCI_MEMORY_LIMIT, &end_mem_address);
diff --git a/drivers/pci/hotplug/pci_hotplug_core.c b/drivers/pci/hotplug/pci_hotplug_core.c
index ec20f74c8981..cfa92a984e62 100644
--- a/drivers/pci/hotplug/pci_hotplug_core.c
+++ b/drivers/pci/hotplug/pci_hotplug_core.c
@@ -131,7 +131,7 @@ static ssize_t power_write_file(struct pci_slot *pci_slot, const char *buf,
 	}
 	module_put(slot->ops->owner);
 
-exit:	
+exit:
 	if (retval)
 		return retval;
 	return count;
@@ -177,7 +177,7 @@ static ssize_t attention_write_file(struct pci_slot *slot, const char *buf,
 		retval = ops->set_attention_status(slot->hotplug, attention);
 	module_put(ops->owner);
 
-exit:	
+exit:
 	if (retval)
 		return retval;
 	return count;
@@ -247,7 +247,7 @@ static ssize_t test_write_file(struct pci_slot *pci_slot, const char *buf,
 		retval = slot->ops->hardware_test(slot, test);
 	module_put(slot->ops->owner);
 
-exit:	
+exit:
 	if (retval)
 		return retval;
 	return count;
@@ -512,7 +512,7 @@ int pci_hp_deregister(struct hotplug_slot *hotplug)
  * @hotplug: pointer to the slot whose info has changed
  * @info: pointer to the info copy into the slot's info structure
  *
- * @slot must have been registered with the pci 
+ * @slot must have been registered with the pci
  * hotplug subsystem previously with a call to pci_hp_register().
  *
  * Returns 0 if successful, anything else for an error.
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index 541bbe6d5343..21e865ded1dc 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -180,5 +180,5 @@ static inline int pciehp_acpi_slot_detection_check(struct pci_dev *dev)
 {
 	return 0;
 }
-#endif 				/* CONFIG_ACPI */
+#endif				/* CONFIG_ACPI */
 #endif				/* _PCIEHP_H */
diff --git a/drivers/pci/hotplug/pciehp_acpi.c b/drivers/pci/hotplug/pciehp_acpi.c
index ead7c534095e..55ea2a07f266 100644
--- a/drivers/pci/hotplug/pciehp_acpi.c
+++ b/drivers/pci/hotplug/pciehp_acpi.c
@@ -78,7 +78,7 @@ static int __initdata dup_slot_id;
 static int __initdata acpi_slot_detected;
 static struct list_head __initdata dummy_slots = LIST_HEAD_INIT(dummy_slots);
 
-/* Dummy driver for dumplicate name detection */
+/* Dummy driver for duplicate name detection */
 static int __init dummy_probe(struct pcie_device *dev)
 {
 	u32 slot_cap;
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index f4a18f51a29c..bbd48bbe4e9b 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -351,8 +351,8 @@ static int __init pcied_init(void)
 
 	pciehp_firmware_init();
 	retval = pcie_port_service_register(&hpdriver_portdrv);
- 	dbg("pcie_port_service_register = %d\n", retval);
-  	info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
+	dbg("pcie_port_service_register = %d\n", retval);
+	info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
 	if (retval)
 		dbg("Failure to register service\n");
 
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 51f56ef4ab6f..3eea3fdd4b0b 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -92,7 +92,7 @@ static void start_int_poll_timer(struct controller *ctrl, int sec)
 {
 	/* Clamp to sane value */
 	if ((sec <= 0) || (sec > 60))
-        	sec = 2;
+		sec = 2;
 
 	ctrl->poll_timer.function = &int_poll_timeout;
 	ctrl->poll_timer.data = (unsigned long)ctrl;
@@ -194,7 +194,7 @@ static int pcie_write_cmd(struct controller *ctrl, u16 cmd, u16 mask)
 			ctrl_dbg(ctrl, "CMD_COMPLETED not clear after 1 sec\n");
 		} else if (!NO_CMD_CMPL(ctrl)) {
 			/*
-			 * This controller semms to notify of command completed
+			 * This controller seems to notify of command completed
 			 * event even though it supports none of power
 			 * controller, attention led, power led and EMI.
 			 */
@@ -926,7 +926,7 @@ struct controller *pcie_init(struct pcie_device *dev)
 	if (pciehp_writew(ctrl, PCI_EXP_SLTSTA, 0x1f))
 		goto abort_ctrl;
 
-	/* Disable sotfware notification */
+	/* Disable software notification */
 	pcie_disable_notification(ctrl);
 
 	ctrl_info(ctrl, "HPC vendor_id %x device_id %x ss_vid %x ss_did %x\n",
diff --git a/drivers/pci/hotplug/pcihp_skeleton.c b/drivers/pci/hotplug/pcihp_skeleton.c
index 1f00b937f721..ac69094e4b20 100644
--- a/drivers/pci/hotplug/pcihp_skeleton.c
+++ b/drivers/pci/hotplug/pcihp_skeleton.c
@@ -52,7 +52,7 @@ static LIST_HEAD(slot_list);
 	do {							\
 		if (debug)					\
 			printk (KERN_DEBUG "%s: " format "\n",	\
-				MY_NAME , ## arg); 		\
+				MY_NAME , ## arg);		\
 	} while (0)
 #define err(format, arg...) printk(KERN_ERR "%s: " format "\n", MY_NAME , ## arg)
 #define info(format, arg...) printk(KERN_INFO "%s: " format "\n", MY_NAME , ## arg)
@@ -287,7 +287,7 @@ static int __init init_slots(void)
 		hotplug_slot->release = &release_slot;
 		make_slot_name(slot);
 		hotplug_slot->ops = &skel_hotplug_slot_ops;
-		
+
 		/*
 		 * Initialize the slot info structure with some known
 		 * good values.
@@ -296,7 +296,7 @@ static int __init init_slots(void)
 		get_attention_status(hotplug_slot, &info->attention_status);
 		get_latch_status(hotplug_slot, &info->latch_status);
 		get_adapter_status(hotplug_slot, &info->adapter_status);
-		
+
 		dbg("registering slot %d\n", i);
 		retval = pci_hp_register(slot->hotplug_slot);
 		if (retval) {
@@ -336,7 +336,7 @@ static void __exit cleanup_slots(void)
 		pci_hp_deregister(slot->hotplug_slot);
 	}
 }
-		
+
 static int __init pcihp_skel_init(void)
 {
 	int retval;
diff --git a/drivers/pci/hotplug/rpadlpar_core.c b/drivers/pci/hotplug/rpadlpar_core.c
index bb7af78e4eed..e9c044d15add 100644
--- a/drivers/pci/hotplug/rpadlpar_core.c
+++ b/drivers/pci/hotplug/rpadlpar_core.c
@@ -217,7 +217,7 @@ static int dlpar_remove_phb(char *drc_name, struct device_node *dn)
 	if (!pcibios_find_pci_bus(dn))
 		return -EINVAL;
 
-	/* If pci slot is hotplugable, use hotplug to remove it */
+	/* If pci slot is hotpluggable, use hotplug to remove it */
 	slot = find_php_slot(dn);
 	if (slot && rpaphp_deregister_slot(slot)) {
 		printk(KERN_ERR "%s: unable to remove hotplug slot %s\n",
diff --git a/drivers/pci/hotplug/rpaphp.h b/drivers/pci/hotplug/rpaphp.h
index 3135856e5e1c..b2593e876a09 100644
--- a/drivers/pci/hotplug/rpaphp.h
+++ b/drivers/pci/hotplug/rpaphp.h
@@ -49,9 +49,9 @@
 extern bool rpaphp_debug;
 #define dbg(format, arg...)					\
 	do {							\
-		if (rpaphp_debug)					\
+		if (rpaphp_debug)				\
 			printk(KERN_DEBUG "%s: " format,	\
-				MY_NAME , ## arg); 		\
+				MY_NAME , ## arg);		\
 	} while (0)
 #define err(format, arg...) printk(KERN_ERR "%s: " format, MY_NAME , ## arg)
 #define info(format, arg...) printk(KERN_INFO "%s: " format, MY_NAME , ## arg)
@@ -99,5 +99,5 @@ void dealloc_slot_struct(struct slot *slot);
 struct slot *alloc_slot_struct(struct device_node *dn, int drc_index, char *drc_name, int power_domain);
 int rpaphp_register_slot(struct slot *slot);
 int rpaphp_deregister_slot(struct slot *slot);
-	
+
 #endif				/* _PPC64PHP_H */
diff --git a/drivers/pci/hotplug/rpaphp_core.c b/drivers/pci/hotplug/rpaphp_core.c
index 127d6e600185..b7fc5c9255a5 100644
--- a/drivers/pci/hotplug/rpaphp_core.c
+++ b/drivers/pci/hotplug/rpaphp_core.c
@@ -226,7 +226,7 @@ int rpaphp_get_drc_props(struct device_node *dn, int *drc_index,
 	for (i = 0; i < indexes[0]; i++) {
 		if ((unsigned int) indexes[i + 1] == *my_index) {
 			if (drc_name)
-                		*drc_name = name_tmp;
+				*drc_name = name_tmp;
 			if (drc_type)
 				*drc_type = type_tmp;
 			if (drc_index)
@@ -289,7 +289,7 @@ static int is_php_dn(struct device_node *dn, const int **indexes,
  * rpaphp_add_slot -- declare a hotplug slot to the hotplug subsystem.
  * @dn: device node of slot
  *
- * This subroutine will register a hotplugable slot with the
+ * This subroutine will register a hotpluggable slot with the
  * PCI hotplug infrastructure. This routine is typically called
  * during boot time, if the hotplug slots are present at boot time,
  * or is called later, by the dlpar add code, if the slot is
@@ -328,7 +328,7 @@ int rpaphp_add_slot(struct device_node *dn)
 			return -ENOMEM;
 
 		slot->type = simple_strtoul(type, NULL, 10);
-				
+
 		dbg("Found drc-index:0x%x drc-name:%s drc-type:%s\n",
 				indexes[i + 1], name, type);
 
@@ -356,7 +356,7 @@ static void __exit cleanup_slots(void)
 	/*
 	 * Unregister all of our slots with the pci_hotplug subsystem,
 	 * and free up all memory that we had allocated.
-	 * memory will be freed in release_slot callback. 
+	 * memory will be freed in release_slot callback.
 	 */
 
 	list_for_each_safe(tmp, n, &rpaphp_slot_head) {
diff --git a/drivers/pci/hotplug/rpaphp_pci.c b/drivers/pci/hotplug/rpaphp_pci.c
index 513e1e282391..9243f3e7a1c9 100644
--- a/drivers/pci/hotplug/rpaphp_pci.c
+++ b/drivers/pci/hotplug/rpaphp_pci.c
@@ -44,7 +44,7 @@ int rpaphp_get_sensor_state(struct slot *slot, int *state)
 			dbg("%s: slot must be power up to get sensor-state\n",
 			    __func__);
 
-			/* some slots have to be powered up 
+			/* some slots have to be powered up
 			 * before get-sensor will succeed.
 			 */
 			rc = rtas_set_power_level(slot->power_domain, POWER_ON,
@@ -133,4 +133,3 @@ int rpaphp_enable_slot(struct slot *slot)
 
 	return 0;
 }
-
diff --git a/drivers/pci/hotplug/rpaphp_slot.c b/drivers/pci/hotplug/rpaphp_slot.c
index b283bbea6d24..a6082cc263f7 100644
--- a/drivers/pci/hotplug/rpaphp_slot.c
+++ b/drivers/pci/hotplug/rpaphp_slot.c
@@ -1,5 +1,5 @@
 /*
- * RPA Virtual I/O device functions 
+ * RPA Virtual I/O device functions
  * Copyright (C) 2004 Linda Xie <lxie@us.ibm.com>
  *
  * All rights reserved.
@@ -51,27 +51,27 @@ struct slot *alloc_slot_struct(struct device_node *dn,
                        int drc_index, char *drc_name, int power_domain)
 {
 	struct slot *slot;
-	
+
 	slot = kzalloc(sizeof(struct slot), GFP_KERNEL);
 	if (!slot)
 		goto error_nomem;
 	slot->hotplug_slot = kzalloc(sizeof(struct hotplug_slot), GFP_KERNEL);
 	if (!slot->hotplug_slot)
-		goto error_slot;	
+		goto error_slot;
 	slot->hotplug_slot->info = kzalloc(sizeof(struct hotplug_slot_info),
 					   GFP_KERNEL);
 	if (!slot->hotplug_slot->info)
 		goto error_hpslot;
 	slot->name = kstrdup(drc_name, GFP_KERNEL);
 	if (!slot->name)
-		goto error_info;	
+		goto error_info;
 	slot->dn = dn;
 	slot->index = drc_index;
 	slot->power_domain = power_domain;
 	slot->hotplug_slot->private = slot;
 	slot->hotplug_slot->ops = &rpaphp_hotplug_slot_ops;
 	slot->hotplug_slot->release = &rpaphp_release_slot;
-	
+
 	return (slot);
 
 error_info:
@@ -91,7 +91,7 @@ static int is_registered(struct slot *slot)
 	list_for_each_entry(tmp_slot, &rpaphp_slot_head, rpaphp_slot_list) {
 		if (!strcmp(tmp_slot->name, slot->name))
 			return 1;
-	}	
+	}
 	return 0;
 }
 
@@ -104,7 +104,7 @@ int rpaphp_deregister_slot(struct slot *slot)
 		__func__, slot->name);
 
 	list_del(&slot->rpaphp_slot_list);
-	
+
 	retval = pci_hp_deregister(php_slot);
 	if (retval)
 		err("Problem unregistering a slot %s\n", slot->name);
@@ -120,7 +120,7 @@ int rpaphp_register_slot(struct slot *slot)
 	int retval;
 	int slotno;
 
-	dbg("%s registering slot:path[%s] index[%x], name[%s] pdomain[%x] type[%d]\n", 
+	dbg("%s registering slot:path[%s] index[%x], name[%s] pdomain[%x] type[%d]\n",
 		__func__, slot->dn->full_name, slot->index, slot->name,
 		slot->power_domain, slot->type);
 
@@ -128,7 +128,7 @@ int rpaphp_register_slot(struct slot *slot)
 	if (is_registered(slot)) {
 		err("rpaphp_register_slot: slot[%s] is already registered\n", slot->name);
 		return -EAGAIN;
-	}	
+	}
 
 	if (slot->dn->child)
 		slotno = PCI_SLOT(PCI_DN(slot->dn->child)->devfn);
@@ -145,4 +145,3 @@ int rpaphp_register_slot(struct slot *slot)
 	info("Slot [%s] registered\n", slot->name);
 	return 0;
 }
-
diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h
index d876e4b3c6a9..61529097464d 100644
--- a/drivers/pci/hotplug/shpchp.h
+++ b/drivers/pci/hotplug/shpchp.h
@@ -216,13 +216,13 @@ struct ctrl_reg {
 
 /* offsets to the controller registers based on the above structure layout */
 enum ctrl_offsets {
-	BASE_OFFSET 	 = offsetof(struct ctrl_reg, base_offset),
-	SLOT_AVAIL1 	 = offsetof(struct ctrl_reg, slot_avail1),
+	BASE_OFFSET	 = offsetof(struct ctrl_reg, base_offset),
+	SLOT_AVAIL1	 = offsetof(struct ctrl_reg, slot_avail1),
 	SLOT_AVAIL2	 = offsetof(struct ctrl_reg, slot_avail2),
-	SLOT_CONFIG 	 = offsetof(struct ctrl_reg, slot_config),
+	SLOT_CONFIG	 = offsetof(struct ctrl_reg, slot_config),
 	SEC_BUS_CONFIG	 = offsetof(struct ctrl_reg, sec_bus_config),
 	MSI_CTRL	 = offsetof(struct ctrl_reg, msi_ctrl),
-	PROG_INTERFACE 	 = offsetof(struct ctrl_reg, prog_interface),
+	PROG_INTERFACE	 = offsetof(struct ctrl_reg, prog_interface),
 	CMD		 = offsetof(struct ctrl_reg, cmd),
 	CMD_STATUS	 = offsetof(struct ctrl_reg, cmd_status),
 	INTR_LOC	 = offsetof(struct ctrl_reg, intr_loc),
diff --git a/drivers/pci/hotplug/shpchp_core.c b/drivers/pci/hotplug/shpchp_core.c
index d3f757df691c..faf13abd5b99 100644
--- a/drivers/pci/hotplug/shpchp_core.c
+++ b/drivers/pci/hotplug/shpchp_core.c
@@ -143,11 +143,11 @@ static int init_slots(struct controller *ctrl)
 		snprintf(name, SLOT_NAME_SIZE, "%d", slot->number);
 		hotplug_slot->ops = &shpchp_hotplug_slot_ops;
 
- 		ctrl_dbg(ctrl, "Registering domain:bus:dev=%04x:%02x:%02x "
- 			 "hp_slot=%x sun=%x slot_device_offset=%x\n",
- 			 pci_domain_nr(ctrl->pci_dev->subordinate),
- 			 slot->bus, slot->device, slot->hp_slot, slot->number,
- 			 ctrl->slot_device_offset);
+		ctrl_dbg(ctrl, "Registering domain:bus:dev=%04x:%02x:%02x "
+			 "hp_slot=%x sun=%x slot_device_offset=%x\n",
+			 pci_domain_nr(ctrl->pci_dev->subordinate),
+			 slot->bus, slot->device, slot->hp_slot, slot->number,
+			 ctrl->slot_device_offset);
 		retval = pci_hp_register(slot->hotplug_slot,
 				ctrl->pci_dev->subordinate, slot->device, name);
 		if (retval) {
diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c
index 75ba2311b54f..2d7f474ca0ec 100644
--- a/drivers/pci/hotplug/shpchp_hpc.c
+++ b/drivers/pci/hotplug/shpchp_hpc.c
@@ -116,7 +116,7 @@
 #define SLOT_REG_RSVDZ_MASK	((1 << 15) | (7 << 21))
 
 /*
- * SHPC Command Code definitnions
+ * SHPC Command Code definitions
  *
  *     Slot Operation				00h - 3Fh
  *     Set Bus Segment Speed/Mode A		40h - 47h
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index 21a7182dccd4..1fe2d6fb19d5 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -610,7 +610,7 @@ resource_size_t pci_sriov_resource_alignment(struct pci_dev *dev, int resno)
 	struct resource tmp;
 	enum pci_bar_type type;
 	int reg = pci_iov_resource_bar(dev, resno, &type);
-	
+
 	if (!reg)
 		return 0;
 
diff --git a/drivers/pci/irq.c b/drivers/pci/irq.c
index b008cf86b9c3..6684f153ab57 100644
--- a/drivers/pci/irq.c
+++ b/drivers/pci/irq.c
@@ -25,7 +25,7 @@ static void pci_note_irq_problem(struct pci_dev *pdev, const char *reason)
 /**
  * pci_lost_interrupt - reports a lost PCI interrupt
  * @pdev:	device whose interrupt is lost
- * 
+ *
  * The primary function of this routine is to report a lost interrupt
  * in a standard way which users can recognise (instead of blaming the
  * driver).
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 5e63645a7abe..3fcd67a16677 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -784,7 +784,7 @@ error:
  * @nvec: how many MSIs have been requested ?
  * @type: are we checking for MSI or MSI-X ?
  *
- * Look at global flags, the device itself, and its parent busses
+ * Look at global flags, the device itself, and its parent buses
  * to determine if MSI/-X are supported for the device. If MSI/-X is
  * supported return 0, else return an error code.
  **/
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index dfd1f59de729..92a49c2b1fda 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -141,7 +141,7 @@ phys_addr_t acpi_pci_root_get_mcfg_addr(acpi_handle handle)
  * if (_PRW at S-state x)
  *	choose from highest power _SxD to lowest power _SxW
  * else // no _PRW at S-state x
- * 	choose highest power _SxD or any lower power
+ *	choose highest power _SxD or any lower power
  */
 
 static pci_power_t acpi_pci_choose_state(struct pci_dev *pdev)
diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 454853507b7e..9042fdbd7244 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -312,7 +312,7 @@ static int pci_call_probe(struct pci_driver *drv, struct pci_dev *dev,
  * __pci_device_probe - check if a driver wants to claim a specific PCI device
  * @drv: driver to call to check if it wants the PCI device
  * @pci_dev: PCI device being probed
- * 
+ *
  * returns 0 on success, else error.
  * side-effect: pci_dev->driver is set to drv when drv claims pci_dev.
  */
@@ -378,7 +378,7 @@ static int pci_device_remove(struct device * dev)
 	 * We would love to complain here if pci_dev->is_enabled is set, that
 	 * the driver should have called pci_disable_device(), but the
 	 * unfortunate fact is there are too many odd BIOS and bridge setups
-	 * that don't like drivers doing that all of the time.  
+	 * that don't like drivers doing that all of the time.
 	 * Oh well, we can dream of sane hardware when we sleep, no matter how
 	 * horrible the crap we have to deal with is when we are awake...
 	 */
@@ -1156,10 +1156,10 @@ static const struct dev_pm_ops pci_dev_pm_ops = {
  * @drv: the driver structure to register
  * @owner: owner module of drv
  * @mod_name: module name string
- * 
+ *
  * Adds the driver structure to the list of registered drivers.
- * Returns a negative value on error, otherwise 0. 
- * If no error occurred, the driver remains registered even if 
+ * Returns a negative value on error, otherwise 0.
+ * If no error occurred, the driver remains registered even if
  * no device was claimed during registration.
  */
 int __pci_register_driver(struct pci_driver *drv, struct module *owner,
@@ -1181,7 +1181,7 @@ int __pci_register_driver(struct pci_driver *drv, struct module *owner,
 /**
  * pci_unregister_driver - unregister a pci driver
  * @drv: the driver structure to unregister
- * 
+ *
  * Deletes the driver structure from the list of registered PCI drivers,
  * gives it a chance to clean up by calling its remove() function for
  * each device it was responsible for, and marks those devices as
@@ -1203,7 +1203,7 @@ static struct pci_driver pci_compat_driver = {
  * pci_dev_driver - get the pci_driver of a device
  * @dev: the device to query
  *
- * Returns the appropriate pci_driver structure or %NULL if there is no 
+ * Returns the appropriate pci_driver structure or %NULL if there is no
  * registered driver for the device.
  */
 struct pci_driver *
@@ -1224,7 +1224,7 @@ pci_dev_driver(const struct pci_dev *dev)
  * pci_bus_match - Tell if a PCI device structure has a matching PCI device id structure
  * @dev: the PCI device structure to match against
  * @drv: the device driver to search for matching PCI device id structures
- * 
+ *
  * Used by a driver to check whether a PCI device present in the
  * system is in its list of supported devices. Returns the matching
  * pci_device_id structure or %NULL if there is no match.
diff --git a/drivers/pci/pci-stub.c b/drivers/pci/pci-stub.c
index 6e47c519c510..2ff77509d8e5 100644
--- a/drivers/pci/pci-stub.c
+++ b/drivers/pci/pci-stub.c
@@ -2,13 +2,13 @@
  *
  * Copyright (C) 2008 Red Hat, Inc.
  * Author:
- * 	Chris Wright
+ *	Chris Wright
  *
  * This work is licensed under the terms of the GNU GPL, version 2.
  *
  * Usage is simple, allocate a new id to the stub driver and bind the
  * device to it.  For example:
- * 
+ *
  * # echo "8086 10f5" > /sys/bus/pci/drivers/pci-stub/new_id
  * # echo -n 0000:00:19.0 > /sys/bus/pci/drivers/e1000e/unbind
  * # echo -n 0000:00:19.0 > /sys/bus/pci/drivers/pci-stub/bind
diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 2aaa83c85a4e..c91e6c18debc 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -10,7 +10,7 @@
  *
  * File attributes for PCI devices
  *
- * Modeled after usb's driverfs.c 
+ * Modeled after usb's driverfs.c
  *
  */
 
@@ -270,13 +270,17 @@ msi_bus_store(struct device *dev, struct device_attribute *attr,
 	if (kstrtoul(buf, 0, &val) < 0)
 		return -EINVAL;
 
-	/* bad things may happen if the no_msi flag is changed
-	 * while some drivers are loaded */
+	/*
+	 * Bad things may happen if the no_msi flag is changed
+	 * while drivers are loaded.
+	 */
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	/* Maybe pci devices without subordinate busses shouldn't even have this
-	 * attribute in the first place?  */
+	/*
+	 * Maybe devices without subordinate buses shouldn't have this
+	 * attribute in the first place?
+	 */
 	if (!pdev->subordinate)
 		return count;
 
@@ -670,7 +674,7 @@ pci_write_config(struct file* filp, struct kobject *kobj,
 		size = dev->cfg_size - off;
 		count = size;
 	}
-	
+
 	pci_config_pm_runtime_get(dev);
 
 	if ((off & 1) && size) {
@@ -678,7 +682,7 @@ pci_write_config(struct file* filp, struct kobject *kobj,
 		off++;
 		size--;
 	}
-	
+
 	if ((off & 3) && size > 2) {
 		u16 val = data[off - init_off];
 		val |= (u16) data[off - init_off + 1] << 8;
@@ -696,7 +700,7 @@ pci_write_config(struct file* filp, struct kobject *kobj,
 		off += 4;
 		size -= 4;
 	}
-	
+
 	if (size >= 2) {
 		u16 val = data[off - init_off];
 		val |= (u16) data[off - init_off + 1] << 8;
@@ -1229,21 +1233,21 @@ pci_read_rom(struct file *filp, struct kobject *kobj,
 
 	if (!pdev->rom_attr_enabled)
 		return -EINVAL;
-	
+
 	rom = pci_map_rom(pdev, &size);	/* size starts out as PCI window size */
 	if (!rom || !size)
 		return -EIO;
-		
+
 	if (off >= size)
 		count = 0;
 	else {
 		if (off + count > size)
 			count = size - off;
-		
+
 		memcpy_fromio(buf, rom + off, count);
 	}
 	pci_unmap_rom(pdev, rom);
-		
+
 	return count;
 }
 
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index b127fbda6fc8..33120d156668 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -198,7 +198,7 @@ static int __pci_bus_find_cap_start(struct pci_bus *bus,
 }
 
 /**
- * pci_find_capability - query for devices' capabilities 
+ * pci_find_capability - query for devices' capabilities
  * @dev: PCI device to query
  * @cap: capability code
  *
@@ -207,12 +207,12 @@ static int __pci_bus_find_cap_start(struct pci_bus *bus,
  * device's PCI configuration space or 0 in case the device does not
  * support it.  Possible values for @cap:
  *
- *  %PCI_CAP_ID_PM           Power Management 
- *  %PCI_CAP_ID_AGP          Accelerated Graphics Port 
- *  %PCI_CAP_ID_VPD          Vital Product Data 
- *  %PCI_CAP_ID_SLOTID       Slot Identification 
+ *  %PCI_CAP_ID_PM           Power Management
+ *  %PCI_CAP_ID_AGP          Accelerated Graphics Port
+ *  %PCI_CAP_ID_VPD          Vital Product Data
+ *  %PCI_CAP_ID_SLOTID       Slot Identification
  *  %PCI_CAP_ID_MSI          Message Signalled Interrupts
- *  %PCI_CAP_ID_CHSWP        CompactPCI HotSwap 
+ *  %PCI_CAP_ID_CHSWP        CompactPCI HotSwap
  *  %PCI_CAP_ID_PCIX         PCI-X
  *  %PCI_CAP_ID_EXP          PCI Express
  */
@@ -228,13 +228,13 @@ int pci_find_capability(struct pci_dev *dev, int cap)
 }
 
 /**
- * pci_bus_find_capability - query for devices' capabilities 
+ * pci_bus_find_capability - query for devices' capabilities
  * @bus:   the PCI bus to query
  * @devfn: PCI device to query
  * @cap:   capability code
  *
  * Like pci_find_capability() but works for pci devices that do not have a
- * pci_dev structure set up yet. 
+ * pci_dev structure set up yet.
  *
  * Returns the address of the requested capability structure within the
  * device's PCI configuration space or 0 in case the device does not
@@ -515,7 +515,7 @@ static int pci_raw_set_power_state(struct pci_dev *dev, pci_power_t state)
 		return -EINVAL;
 
 	/* Validate current state:
-	 * Can enter D0 from any state, but if we can only go deeper 
+	 * Can enter D0 from any state, but if we can only go deeper
 	 * to sleep if we're already in a low power state
 	 */
 	if (state != PCI_D0 && dev->current_state <= PCI_D3cold
@@ -998,7 +998,7 @@ static void pci_restore_config_space(struct pci_dev *pdev)
 	}
 }
 
-/** 
+/**
  * pci_restore_state - Restore the saved state of a PCI device
  * @dev: - PCI device that we're dealing with
  */
@@ -1030,7 +1030,7 @@ struct pci_saved_state {
  *			   the device saved state.
  * @dev: PCI device that we're dealing with
  *
- * Rerturn NULL if no state or error.
+ * Return NULL if no state or error.
  */
 struct pci_saved_state *pci_store_saved_state(struct pci_dev *dev)
 {
@@ -1880,7 +1880,7 @@ int pci_finish_runtime_suspend(struct pci_dev *dev)
  * pci_dev_run_wake - Check if device can generate run-time wake-up events.
  * @dev: Device to check.
  *
- * Return true if the device itself is cabable of generating wake-up events
+ * Return true if the device itself is capable of generating wake-up events
  * (through the platform or using the native PCIe PME) or if the device supports
  * PME and one of its upstream bridges can generate wake-up events.
  */
@@ -2447,7 +2447,7 @@ bool pci_acs_enabled(struct pci_dev *pdev, u16 acs_flags)
 	switch (pci_pcie_type(pdev)) {
 	/*
 	 * PCI/X-to-PCIe bridges are not specifically mentioned by the spec,
-	 * but since their primary inteface is PCI/X, we conservatively
+	 * but since their primary interface is PCI/X, we conservatively
 	 * handle them as we would a non-PCIe device.
 	 */
 	case PCI_EXP_TYPE_PCIE_BRIDGE:
@@ -2471,7 +2471,7 @@ bool pci_acs_enabled(struct pci_dev *pdev, u16 acs_flags)
 	/*
 	 * PCIe 3.0, 6.12.1.2 specifies ACS capabilities that should be
 	 * implemented by the remaining PCIe types to indicate peer-to-peer
-	 * capabilities, but only when they are part of a multifunciton
+	 * capabilities, but only when they are part of a multifunction
 	 * device.  The footnote for section 6.12 indicates the specific
 	 * PCIe types included here.
 	 */
@@ -2486,7 +2486,7 @@ bool pci_acs_enabled(struct pci_dev *pdev, u16 acs_flags)
 	}
 
 	/*
-	 * PCIe 3.0, 6.12.1.3 specifies no ACS capabilties are applicable
+	 * PCIe 3.0, 6.12.1.3 specifies no ACS capabilities are applicable
 	 * to single function devices with the exception of downstream ports.
 	 */
 	return true;
@@ -2622,7 +2622,7 @@ void pci_release_region(struct pci_dev *pdev, int bar)
  *
  *	If @exclusive is set, then the region is marked so that userspace
  *	is explicitly not allowed to map the resource via /dev/mem or
- * 	sysfs MMIO access.
+ *	sysfs MMIO access.
  *
  *	Returns 0 on success, or %EBUSY on error.  A warning
  *	message is also printed on failure.
@@ -2634,7 +2634,7 @@ static int __pci_request_region(struct pci_dev *pdev, int bar, const char *res_n
 
 	if (pci_resource_len(pdev, bar) == 0)
 		return 0;
-		
+
 	if (pci_resource_flags(pdev, bar) & IORESOURCE_IO) {
 		if (!request_region(pci_resource_start(pdev, bar),
 			    pci_resource_len(pdev, bar), res_name))
@@ -2694,7 +2694,7 @@ int pci_request_region(struct pci_dev *pdev, int bar, const char *res_name)
  *
  *	The key difference that _exclusive makes it that userspace is
  *	explicitly not allowed to map the resource via /dev/mem or
- * 	sysfs.
+ *	sysfs.
  */
 int pci_request_region_exclusive(struct pci_dev *pdev, int bar, const char *res_name)
 {
@@ -2799,7 +2799,7 @@ int pci_request_regions(struct pci_dev *pdev, const char *res_name)
  *	successfully.
  *
  *	pci_request_regions_exclusive() will mark the region so that
- * 	/dev/mem and the sysfs MMIO access will not be allowed.
+ *	/dev/mem and the sysfs MMIO access will not be allowed.
  *
  *	Returns 0 on success, or %EBUSY on error.  A warning
  *	message is also printed on failure.
@@ -2967,7 +2967,7 @@ pci_set_mwi(struct pci_dev *dev)
 		cmd |= PCI_COMMAND_INVALIDATE;
 		pci_write_config_word(dev, PCI_COMMAND, cmd);
 	}
-	
+
 	return 0;
 }
 
@@ -3292,7 +3292,7 @@ clear:
  *
  * NOTE: This causes the caller to sleep for twice the device power transition
  * cooldown period, which for the D0->D3hot and D3hot->D0 transitions is 10 ms
- * by devault (i.e. unless the @dev's d3_delay field has a different value).
+ * by default (i.e. unless the @dev's d3_delay field has a different value).
  * Moreover, only devices in D0 can be reset by this function.
  */
 static int pci_pm_reset(struct pci_dev *dev, int probe)
@@ -3341,7 +3341,7 @@ void pci_reset_bridge_secondary_bus(struct pci_dev *dev)
 	pci_write_config_word(dev, PCI_BRIDGE_CONTROL, ctrl);
 	/*
 	 * PCI spec v3.0 7.6.4.2 requires minimum Trst of 1ms.  Double
-	 * this to 2ms to ensure that we meet the minium requirement.
+	 * this to 2ms to ensure that we meet the minimum requirement.
 	 */
 	msleep(2);
 
@@ -3998,7 +3998,7 @@ int pcie_set_mps(struct pci_dev *dev, int mps)
 		return -EINVAL;
 
 	v = ffs(mps) - 8;
-	if (v > dev->pcie_mpss) 
+	if (v > dev->pcie_mpss)
 		return -EINVAL;
 	v <<= 5;
 
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index 85ca36f2136d..688e48e51073 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -525,7 +525,7 @@ static void handle_error_source(struct pcie_device *aerdev,
 
 	if (info->severity == AER_CORRECTABLE) {
 		/*
-		 * Correctable error does not need software intevention.
+		 * Correctable error does not need software intervention.
 		 * No need to go through error recovery process.
 		 */
 		pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index 403a44374ed5..f1272dc54de1 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -548,7 +548,7 @@ static struct pcie_link_state *alloc_pcie_link_state(struct pci_dev *pdev)
 
 /*
  * pcie_aspm_init_link_state: Initiate PCI express link state.
- * It is called after the pcie and its children devices are scaned.
+ * It is called after the pcie and its children devices are scanned.
  * @pdev: the root port or switch downstream port
  */
 void pcie_aspm_init_link_state(struct pci_dev *pdev)
diff --git a/drivers/pci/pcie/pme.c b/drivers/pci/pcie/pme.c
index e56e594ce112..bbc3bdd2b189 100644
--- a/drivers/pci/pcie/pme.c
+++ b/drivers/pci/pcie/pme.c
@@ -419,8 +419,8 @@ static void pcie_pme_remove(struct pcie_device *srv)
 
 static struct pcie_port_service_driver pcie_pme_driver = {
 	.name		= "pcie_pme",
-	.port_type 	= PCI_EXP_TYPE_ROOT_PORT,
-	.service 	= PCIE_PORT_SERVICE_PME,
+	.port_type	= PCI_EXP_TYPE_ROOT_PORT,
+	.service	= PCIE_PORT_SERVICE_PME,
 
 	.probe		= pcie_pme_probe,
 	.suspend	= pcie_pme_suspend,
diff --git a/drivers/pci/pcie/portdrv.h b/drivers/pci/pcie/portdrv.h
index d2eb80aab569..d525548404d6 100644
--- a/drivers/pci/pcie/portdrv.h
+++ b/drivers/pci/pcie/portdrv.h
@@ -14,7 +14,7 @@
 #define PCIE_PORT_DEVICE_MAXSERVICES   4
 /*
  * According to the PCI Express Base Specification 2.0, the indices of
- * the MSI-X table entires used by port services must not exceed 31
+ * the MSI-X table entries used by port services must not exceed 31
  */
 #define PCIE_PORT_MAX_MSIX_ENTRIES	32
 
diff --git a/drivers/pci/pcie/portdrv_bus.c b/drivers/pci/pcie/portdrv_bus.c
index 67be55a7f260..87e79a6ffb5a 100644
--- a/drivers/pci/pcie/portdrv_bus.c
+++ b/drivers/pci/pcie/portdrv_bus.c
@@ -18,8 +18,8 @@
 static int pcie_port_bus_match(struct device *dev, struct device_driver *drv);
 
 struct bus_type pcie_port_bus_type = {
-	.name 		= "pci_express",
-	.match 		= pcie_port_bus_match,
+	.name		= "pci_express",
+	.match		= pcie_port_bus_match,
 };
 EXPORT_SYMBOL_GPL(pcie_port_bus_type);
 
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index 08d131f7815b..0b6e76604068 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -46,7 +46,7 @@ static void release_pcie_device(struct device *dev)
  * pcie_port_msix_add_entry - add entry to given array of MSI-X entries
  * @entries: Array of MSI-X entries
  * @new_entry: Index of the entry to add to the array
- * @nr_entries: Number of entries aleady in the array
+ * @nr_entries: Number of entries already in the array
  *
  * Return value: Position of the added entry in the array
  */
diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index 696caed5fdf5..cd1e57e51aa7 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -390,9 +390,9 @@ static struct pci_driver pcie_portdriver = {
 	.probe		= pcie_portdrv_probe,
 	.remove		= pcie_portdrv_remove,
 
-	.err_handler 	= &pcie_portdrv_err_handler,
+	.err_handler	= &pcie_portdrv_err_handler,
 
-	.driver.pm 	= PCIE_PORTDRV_PM_OPS,
+	.driver.pm	= PCIE_PORTDRV_PM_OPS,
 };
 
 static int __init dmi_pcie_pme_disable_msi(const struct dmi_system_id *d)
@@ -412,7 +412,7 @@ static struct dmi_system_id __initdata pcie_portdrv_dmi_table[] = {
 	 .ident = "MSI Wind U-100",
 	 .matches = {
 		     DMI_MATCH(DMI_SYS_VENDOR,
-		     		"MICRO-STAR INTERNATIONAL CO., LTD"),
+				"MICRO-STAR INTERNATIONAL CO., LTD"),
 		     DMI_MATCH(DMI_PRODUCT_NAME, "U-100"),
 		     },
 	 },
diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
index 5e14f5a51357..38e403dddf6e 100644
--- a/drivers/pci/probe.c
+++ b/drivers/pci/probe.c
@@ -582,7 +582,7 @@ static enum pci_bus_speed agp_speed(int agp3, int agpstat)
 		index = 1;
 	else
 		goto out;
-	
+
 	if (agp3) {
 		index += 2;
 		if (index == 5)
@@ -789,7 +789,7 @@ int pci_scan_bridge(struct pci_bus *bus, struct pci_dev *dev, int max, int pass)
 	}
 
 	/* Disable MasterAbortMode during probing to avoid reporting
-	   of bus errors (in some architectures) */ 
+	   of bus errors (in some architectures) */
 	pci_read_config_word(dev, PCI_BRIDGE_CONTROL, &bctl);
 	pci_write_config_word(dev, PCI_BRIDGE_CONTROL,
 			      bctl & ~PCI_BRIDGE_CTL_MASTER_ABORT);
@@ -1005,7 +1005,7 @@ void set_pcie_hotplug_bridge(struct pci_dev *pdev)
  * pci_setup_device - fill in class and map information of a device
  * @dev: the device structure to fill
  *
- * Initialize the device structure with information about the device's 
+ * Initialize the device structure with information about the device's
  * vendor,class,memory and IO-space addresses,IRQ lines etc.
  * Called at initialisation of the PCI subsystem and by CardBus services.
  * Returns 0 on success and negative if unknown type of device (not normal,
@@ -1111,7 +1111,7 @@ int pci_setup_device(struct pci_dev *dev)
 			goto bad;
 		/* The PCI-to-PCI bridge spec requires that subtractive
 		   decoding (i.e. transparent) bridge must have programming
-		   interface code of 0x01. */ 
+		   interface code of 0x01. */
 		pci_read_irq(dev);
 		dev->transparent = ((dev->class & 0xff) == 1);
 		pci_read_bases(dev, 2, PCI_ROM_ADDRESS1);
@@ -1570,7 +1570,7 @@ static void pcie_write_mrrs(struct pci_dev *dev)
 	 * subsequent read will verify if the value is acceptable or not.
 	 * If the MRRS value provided is not acceptable (e.g., too large),
 	 * shrink the value until it is acceptable to the HW.
- 	 */
+	 */
 	while (mrrs != pcie_get_readrq(dev) && mrrs >= 128) {
 		rc = pcie_set_readrq(dev, mrrs);
 		if (!rc)
diff --git a/drivers/pci/proc.c b/drivers/pci/proc.c
index cdc7836d7e3d..46d1378f2e9e 100644
--- a/drivers/pci/proc.c
+++ b/drivers/pci/proc.c
@@ -222,7 +222,7 @@ static long proc_bus_pci_ioctl(struct file *file, unsigned int cmd,
 	default:
 		ret = -EINVAL;
 		break;
-	};
+	}
 
 	return ret;
 }
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index 91490453c229..b3b1b9aa8863 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -55,7 +55,7 @@ static void quirk_mellanox_tavor(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR,quirk_mellanox_tavor);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_MELLANOX,PCI_DEVICE_ID_MELLANOX_TAVOR_BRIDGE,quirk_mellanox_tavor);
 
-/* Deal with broken BIOS'es that neglect to enable passive release,
+/* Deal with broken BIOSes that neglect to enable passive release,
    which can cause problems in combination with the 82441FX/PPro MTRRs */
 static void quirk_passive_release(struct pci_dev *dev)
 {
@@ -78,11 +78,11 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82441,	quirk_p
 
 /*  The VIA VP2/VP3/MVP3 seem to have some 'features'. There may be a workaround
     but VIA don't answer queries. If you happen to have good contacts at VIA
-    ask them for me please -- Alan 
-    
-    This appears to be BIOS not version dependent. So presumably there is a 
+    ask them for me please -- Alan
+
+    This appears to be BIOS not version dependent. So presumably there is a
     chipset level fix */
-    
+
 static void quirk_isa_dma_hangs(struct pci_dev *dev)
 {
 	if (!isa_dma_bridge_buggy) {
@@ -97,7 +97,7 @@ static void quirk_isa_dma_hangs(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C586_0,	quirk_isa_dma_hangs);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C596,	quirk_isa_dma_hangs);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,    PCI_DEVICE_ID_INTEL_82371SB_0,  quirk_isa_dma_hangs);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL,	PCI_DEVICE_ID_AL_M1533, 	quirk_isa_dma_hangs);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL,	PCI_DEVICE_ID_AL_M1533,		quirk_isa_dma_hangs);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC,	PCI_DEVICE_ID_NEC_CBUS_1,	quirk_isa_dma_hangs);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC,	PCI_DEVICE_ID_NEC_CBUS_2,	quirk_isa_dma_hangs);
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_NEC,	PCI_DEVICE_ID_NEC_CBUS_3,	quirk_isa_dma_hangs);
@@ -157,10 +157,10 @@ static void quirk_triton(struct pci_dev *dev)
 		pci_pci_problems |= PCIPCI_TRITON;
 	}
 }
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 	PCI_DEVICE_ID_INTEL_82437, 	quirk_triton);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 	PCI_DEVICE_ID_INTEL_82437VX, 	quirk_triton);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 	PCI_DEVICE_ID_INTEL_82439, 	quirk_triton);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 	PCI_DEVICE_ID_INTEL_82439TX, 	quirk_triton);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82437,	quirk_triton);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82437VX,	quirk_triton);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82439,	quirk_triton);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82439TX,	quirk_triton);
 
 /*
  *	VIA Apollo KT133 needs PCI latency patch
@@ -171,7 +171,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 	PCI_DEVICE_ID_INTEL_82439TX, 	quir
  *      the info on which Mr Breese based his work.
  *
  *	Updated based on further information from the site and also on
- *	information provided by VIA 
+ *	information provided by VIA
  */
 static void quirk_vialatency(struct pci_dev *dev)
 {
@@ -179,7 +179,7 @@ static void quirk_vialatency(struct pci_dev *dev)
 	u8 busarb;
 	/* Ok we have a potential problem chipset here. Now see if we have
 	   a buggy southbridge */
-	   
+
 	p = pci_get_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_82C686, NULL);
 	if (p!=NULL) {
 		/* 0x40 - 0x4f == 686B, 0x10 - 0x2f == 686A; thanks Dan Hollis */
@@ -194,9 +194,9 @@ static void quirk_vialatency(struct pci_dev *dev)
 		if (p->revision < 0x10 || p->revision > 0x12)
 			goto exit;
 	}
-	
+
 	/*
-	 *	Ok we have the problem. Now set the PCI master grant to 
+	 *	Ok we have the problem. Now set the PCI master grant to
 	 *	occur every master grant. The apparent bug is that under high
 	 *	PCI load (quite common in Linux of course) you can get data
 	 *	loss when the CPU is held off the bus for 3 bus master requests
@@ -209,7 +209,7 @@ static void quirk_vialatency(struct pci_dev *dev)
 	 */
 
 	pci_read_config_byte(dev, 0x76, &busarb);
-	/* Set bit 4 and bi 5 of byte 76 to 0x01 
+	/* Set bit 4 and bi 5 of byte 76 to 0x01
 	   "Master priority rotation on every PCI master grant */
 	busarb &= ~(1<<5);
 	busarb |= (1<<4);
@@ -252,7 +252,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C576,	quirk_vsfx)
  *	that DMA to AGP space. Latency must be set to 0xA and triton
  *	workaround applied too
  *	[Info kindly provided by ALi]
- */	
+ */
 static void quirk_alimagik(struct pci_dev *dev)
 {
 	if ((pci_pci_problems&PCIPCI_ALIMAGIK)==0) {
@@ -260,8 +260,8 @@ static void quirk_alimagik(struct pci_dev *dev)
 		pci_pci_problems |= PCIPCI_ALIMAGIK|PCIPCI_TRITON;
 	}
 }
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, 	PCI_DEVICE_ID_AL_M1647, 	quirk_alimagik);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL, 	PCI_DEVICE_ID_AL_M1651, 	quirk_alimagik);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL,	PCI_DEVICE_ID_AL_M1647,		quirk_alimagik);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AL,	PCI_DEVICE_ID_AL_M1651,		quirk_alimagik);
 
 /*
  *	Natoma has some interesting boundary conditions with Zoran stuff
@@ -274,12 +274,12 @@ static void quirk_natoma(struct pci_dev *dev)
 		pci_pci_problems |= PCIPCI_NATOMA;
 	}
 }
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 	PCI_DEVICE_ID_INTEL_82441, 	quirk_natoma);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 	PCI_DEVICE_ID_INTEL_82443LX_0, 	quirk_natoma);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 	PCI_DEVICE_ID_INTEL_82443LX_1, 	quirk_natoma);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 	PCI_DEVICE_ID_INTEL_82443BX_0, 	quirk_natoma);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 	PCI_DEVICE_ID_INTEL_82443BX_1, 	quirk_natoma);
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL, 	PCI_DEVICE_ID_INTEL_82443BX_2, 	quirk_natoma);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82441,	quirk_natoma);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82443LX_0,	quirk_natoma);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82443LX_1,	quirk_natoma);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82443BX_0,	quirk_natoma);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82443BX_1,	quirk_natoma);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82443BX_2,	quirk_natoma);
 
 /*
  *  This chip can cause PCI parity errors if config register 0xA0 is read
@@ -400,7 +400,7 @@ static void piix4_io_quirk(struct pci_dev *dev, const char *name, unsigned int p
 	/*
 	 * For now we only print it out. Eventually we'll want to
 	 * reserve it (at least if it's in the 0x1000+ range), but
-	 * let's get enough confirmation reports first. 
+	 * let's get enough confirmation reports first.
 	 */
 	base &= -size;
 	dev_info(&dev->dev, "%s PIO at %04x-%04x\n", name, base, base + size - 1);
@@ -425,7 +425,7 @@ static void piix4_mem_quirk(struct pci_dev *dev, const char *name, unsigned int
 	}
 	/*
 	 * For now we only print it out. Eventually we'll want to
-	 * reserve it, but let's get enough confirmation reports first. 
+	 * reserve it, but let's get enough confirmation reports first.
 	 */
 	base &= -size;
 	dev_info(&dev->dev, "%s MMIO at %04x-%04x\n", name, base, base + size - 1);
@@ -682,7 +682,7 @@ static void quirk_xio2000a(struct pci_dev *dev)
 DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XIO2000A,
 			quirk_xio2000a);
 
-#ifdef CONFIG_X86_IO_APIC 
+#ifdef CONFIG_X86_IO_APIC
 
 #include <asm/io_apic.h>
 
@@ -696,12 +696,12 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_XIO2000A,
 static void quirk_via_ioapic(struct pci_dev *dev)
 {
 	u8 tmp;
-	
+
 	if (nr_ioapics < 1)
 		tmp = 0;    /* nothing routed to external APIC */
 	else
 		tmp = 0x1f; /* all known bits (4-0) routed to external APIC */
-		
+
 	dev_info(&dev->dev, "%sbling VIA external APIC routing\n",
 	       tmp == 0 ? "Disa" : "Ena");
 
@@ -712,7 +712,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C686,	quirk_via_i
 DECLARE_PCI_FIXUP_RESUME_EARLY(PCI_VENDOR_ID_VIA,	PCI_DEVICE_ID_VIA_82C686,	quirk_via_ioapic);
 
 /*
- * VIA 8237: Some BIOSs don't set the 'Bypass APIC De-Assert Message' Bit.
+ * VIA 8237: Some BIOSes don't set the 'Bypass APIC De-Assert Message' Bit.
  * This leads to doubled level interrupt rates.
  * Set this bit to get rid of cycle wastage.
  * Otherwise uncritical.
@@ -986,7 +986,7 @@ DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_CYRIX,	PCI_DEVICE_ID_CYRIX_PCI_MASTER, qu
 static void quirk_disable_pxb(struct pci_dev *pdev)
 {
 	u16 config;
-	
+
 	if (pdev->revision != 0x04)		/* Only C0 requires this */
 		return;
 	pci_read_config_word(pdev, 0x40, &config);
@@ -1094,11 +1094,11 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82375,	quirk_e
  * On ASUS P4B boards, the SMBus PCI Device within the ICH2/4 southbridge
  * is not activated. The myth is that Asus said that they do not want the
  * users to be irritated by just another PCI Device in the Win98 device
- * manager. (see the file prog/hotplug/README.p4b in the lm_sensors 
+ * manager. (see the file prog/hotplug/README.p4b in the lm_sensors
  * package 2.7.0 for details)
  *
- * The SMBus PCI Device can be activated by setting a bit in the ICH LPC 
- * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it 
+ * The SMBus PCI Device can be activated by setting a bit in the ICH LPC
+ * bridge. Unfortunately, this device has no subvendor/subdevice ID. So it
  * becomes necessary to do this tweak in two steps -- the chosen trigger
  * is either the Host bridge (preferred) or on-board VGA controller.
  *
@@ -1253,7 +1253,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL,	PCI_DEVICE_ID_INTEL_82815_CGC,	asu
 static void asus_hides_smbus_lpc(struct pci_dev *dev)
 {
 	u16 val;
-	
+
 	if (likely(!asus_hides_smbus))
 		return;
 
@@ -1640,8 +1640,8 @@ static void quirk_disable_intel_boot_interrupt(struct pci_dev *dev)
 	dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n",
 		 dev->vendor, dev->device);
 }
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_ESB_10, 	quirk_disable_intel_boot_interrupt);
-DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_ESB_10, 	quirk_disable_intel_boot_interrupt);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_ESB_10,	quirk_disable_intel_boot_interrupt);
+DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_INTEL,   PCI_DEVICE_ID_INTEL_ESB_10,	quirk_disable_intel_boot_interrupt);
 
 /*
  * disable boot interrupts on HT-1000
@@ -1673,8 +1673,8 @@ static void quirk_disable_broadcom_boot_interrupt(struct pci_dev *dev)
 	dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n",
 		 dev->vendor, dev->device);
 }
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS,   PCI_DEVICE_ID_SERVERWORKS_HT1000SB, 	quirk_disable_broadcom_boot_interrupt);
-DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SERVERWORKS,   PCI_DEVICE_ID_SERVERWORKS_HT1000SB, 	quirk_disable_broadcom_boot_interrupt);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_SERVERWORKS,   PCI_DEVICE_ID_SERVERWORKS_HT1000SB,	quirk_disable_broadcom_boot_interrupt);
+DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_SERVERWORKS,   PCI_DEVICE_ID_SERVERWORKS_HT1000SB,	quirk_disable_broadcom_boot_interrupt);
 
 /*
  * disable boot interrupts on AMD and ATI chipsets
@@ -1730,8 +1730,8 @@ static void quirk_disable_amd_8111_boot_interrupt(struct pci_dev *dev)
 	dev_info(&dev->dev, "disabled boot interrupts on device [%04x:%04x]\n",
 		 dev->vendor, dev->device);
 }
-DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD,   PCI_DEVICE_ID_AMD_8111_SMBUS, 	quirk_disable_amd_8111_boot_interrupt);
-DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD,   PCI_DEVICE_ID_AMD_8111_SMBUS, 	quirk_disable_amd_8111_boot_interrupt);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_AMD,   PCI_DEVICE_ID_AMD_8111_SMBUS,	quirk_disable_amd_8111_boot_interrupt);
+DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_AMD,   PCI_DEVICE_ID_AMD_8111_SMBUS,	quirk_disable_amd_8111_boot_interrupt);
 #endif /* CONFIG_X86_IO_APIC */
 
 /*
@@ -2127,8 +2127,8 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_PLX, 0x8624, quirk_tile_plx_gen1);
 #ifdef CONFIG_PCI_MSI
 /* Some chipsets do not support MSI. We cannot easily rely on setting
  * PCI_BUS_FLAGS_NO_MSI in its bus flags because there are actually
- * some other busses controlled by the chipset even if Linux is not
- * aware of it.  Instead of setting the flag on all busses in the
+ * some other buses controlled by the chipset even if Linux is not
+ * aware of it.  Instead of setting the flag on all buses in the
  * machine, simply disable MSI globally.
  */
 static void quirk_disable_all_msi(struct pci_dev *dev)
@@ -2288,14 +2288,14 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_NVIDIA,
 			nvenet_msi_disable);
 
 /*
- * Some versions of the MCP55 bridge from nvidia have a legacy irq routing
- * config register.  This register controls the routing of legacy interrupts
- * from devices that route through the MCP55.  If this register is misprogramed
- * interrupts are only sent to the bsp, unlike conventional systems where the
- * irq is broadxast to all online cpus.  Not having this register set
- * properly prevents kdump from booting up properly, so lets make sure that
- * we have it set correctly.
- * Note this is an undocumented register.
+ * Some versions of the MCP55 bridge from Nvidia have a legacy IRQ routing
+ * config register.  This register controls the routing of legacy
+ * interrupts from devices that route through the MCP55.  If this register
+ * is misprogrammed, interrupts are only sent to the BSP, unlike
+ * conventional systems where the IRQ is broadcast to all online CPUs.  Not
+ * having this register set properly prevents kdump from booting up
+ * properly, so let's make sure that we have it set correctly.
+ * Note that this is an undocumented register.
  */
 static void nvbridge_check_legacy_irq_routing(struct pci_dev *dev)
 {
@@ -2626,7 +2626,7 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATTANSIC, 0xe091,
 /* Allow manual resource allocation for PCI hotplug bridges
  * via pci=hpmemsize=nnM and pci=hpiosize=nnM parameters. For
  * some PCI-PCI hotplug bridges, like PLX 6254 (former HINT HB6),
- * kernel fails to allocate resources when hotplug device is 
+ * kernel fails to allocate resources when hotplug device is
  * inserted and PCI bus is rescanned.
  */
 static void quirk_hotplug_bridge(struct pci_dev *dev)
diff --git a/drivers/pci/remove.c b/drivers/pci/remove.c
index 8fc54b7327bc..1576851028db 100644
--- a/drivers/pci/remove.c
+++ b/drivers/pci/remove.c
@@ -7,7 +7,7 @@ static void pci_free_resources(struct pci_dev *dev)
 {
 	int i;
 
- 	msi_remove_pci_irq_vectors(dev);
+	msi_remove_pci_irq_vectors(dev);
 
 	pci_cleanup_rom(dev);
 	for (i = 0; i < PCI_NUM_RESOURCES; i++) {
diff --git a/drivers/pci/search.c b/drivers/pci/search.c
index d0627fa9f368..3ff2ac7c14e2 100644
--- a/drivers/pci/search.c
+++ b/drivers/pci/search.c
@@ -1,5 +1,5 @@
 /*
- * 	PCI searching functions.
+ *	PCI searching functions.
  *
  *	Copyright (C) 1993 -- 1997 Drew Eckhardt, Frederic Potter,
  *					David Mosberger-Tang
@@ -96,12 +96,12 @@ struct pci_bus * pci_find_bus(int domain, int busnr)
  * pci_find_next_bus - begin or continue searching for a PCI bus
  * @from: Previous PCI bus found, or %NULL for new search.
  *
- * Iterates through the list of known PCI busses.  A new search is
+ * Iterates through the list of known PCI buses.  A new search is
  * initiated by passing %NULL as the @from argument.  Otherwise if
  * @from is not %NULL, searches continue from next device on the
  * global list.
  */
-struct pci_bus * 
+struct pci_bus *
 pci_find_next_bus(const struct pci_bus *from)
 {
 	struct list_head *n;
@@ -119,11 +119,11 @@ pci_find_next_bus(const struct pci_bus *from)
 /**
  * pci_get_slot - locate PCI device for a given PCI slot
  * @bus: PCI bus on which desired PCI device resides
- * @devfn: encodes number of PCI slot in which the desired PCI 
- * device resides and the logical device number within that slot 
+ * @devfn: encodes number of PCI slot in which the desired PCI
+ * device resides and the logical device number within that slot
  * in case of multi-function devices.
  *
- * Given a PCI bus and slot/function number, the desired PCI device 
+ * Given a PCI bus and slot/function number, the desired PCI device
  * is located in the list of PCI devices.
  * If the device is found, its reference count is increased and this
  * function returns a pointer to its data structure.  The caller must
diff --git a/drivers/pci/setup-bus.c b/drivers/pci/setup-bus.c
index 4ce83b26ae9e..219a4106480a 100644
--- a/drivers/pci/setup-bus.c
+++ b/drivers/pci/setup-bus.c
@@ -292,8 +292,8 @@ static void assign_requested_resources_sorted(struct list_head *head,
 				      (!(res->flags & IORESOURCE_ROM_ENABLE))))
 					add_to_list(fail_head,
 						    dev_res->dev, res,
-						    0 /* dont care */,
-						    0 /* dont care */);
+						    0 /* don't care */,
+						    0 /* don't care */);
 			}
 			reset_resource(res);
 		}
@@ -667,9 +667,9 @@ static void pci_bridge_check_ranges(struct pci_bus *bus)
 	if (!io) {
 		pci_write_config_word(bridge, PCI_IO_BASE, 0xf0f0);
 		pci_read_config_word(bridge, PCI_IO_BASE, &io);
- 		pci_write_config_word(bridge, PCI_IO_BASE, 0x0);
- 	}
- 	if (io)
+		pci_write_config_word(bridge, PCI_IO_BASE, 0x0);
+	}
+	if (io)
 		b_res[0].flags |= IORESOURCE_IO;
 	/*  DECchip 21050 pass 2 errata: the bridge may miss an address
 	    disconnect boundary by one PCI data phase.
@@ -819,7 +819,7 @@ static void pbus_size_io(struct pci_bus *bus, resource_size_t min_size,
 	resource_size_t min_align, align;
 
 	if (!b_res)
- 		return;
+		return;
 
 	min_align = window_alignment(bus, IORESOURCE_IO);
 	list_for_each_entry(dev, &bus->devices, bus_list) {
@@ -950,7 +950,7 @@ static int pbus_size_mem(struct pci_bus *bus, unsigned long mask,
 			if (realloc_head && i >= PCI_IOV_RESOURCES &&
 					i <= PCI_IOV_RESOURCE_END) {
 				r->end = r->start - 1;
-				add_to_list(realloc_head, dev, r, r_size, 0/* dont' care */);
+				add_to_list(realloc_head, dev, r, r_size, 0/* don't care */);
 				children_add_size += r_size;
 				continue;
 			}
@@ -1456,8 +1456,8 @@ static enum enable_type pci_realloc_detect(struct pci_bus *bus,
 
 /*
  * first try will not touch pci bridge res
- * second  and later try will clear small leaf bridge res
- * will stop till to the max  deepth if can not find good one
+ * second and later try will clear small leaf bridge res
+ * will stop till to the max depth if can not find good one
  */
 void pci_assign_unassigned_root_bus_resources(struct pci_bus *bus)
 {
diff --git a/drivers/pci/setup-res.c b/drivers/pci/setup-res.c
index 07f2eddc09ce..83c4d3bc47ab 100644
--- a/drivers/pci/setup-res.c
+++ b/drivers/pci/setup-res.c
@@ -159,7 +159,7 @@ resource_size_t __weak pcibios_retrieve_fw_addr(struct pci_dev *dev, int idx)
 	return 0;
 }
 
-static int pci_revert_fw_address(struct resource *res, struct pci_dev *dev, 
+static int pci_revert_fw_address(struct resource *res, struct pci_dev *dev,
 		int resno, resource_size_t size)
 {
 	struct resource *root, *conflict;
diff --git a/drivers/pci/slot.c b/drivers/pci/slot.c
index c1e9284a677b..448ca562d1f8 100644
--- a/drivers/pci/slot.c
+++ b/drivers/pci/slot.c
@@ -53,7 +53,7 @@ static ssize_t address_read_file(struct pci_slot *slot, char *buf)
 static const char *pci_bus_speed_strings[] = {
 	"33 MHz PCI",		/* 0x00 */
 	"66 MHz PCI",		/* 0x01 */
-	"66 MHz PCI-X", 	/* 0x02 */
+	"66 MHz PCI-X",		/* 0x02 */
 	"100 MHz PCI-X",	/* 0x03 */
 	"133 MHz PCI-X",	/* 0x04 */
 	NULL,			/* 0x05 */
diff --git a/drivers/pci/syscall.c b/drivers/pci/syscall.c
index e1c1ec540893..24750a1b39b6 100644
--- a/drivers/pci/syscall.c
+++ b/drivers/pci/syscall.c
@@ -44,7 +44,7 @@ SYSCALL_DEFINE5(pciconfig_read, unsigned long, bus, unsigned long, dfn,
 	default:
 		err = -EINVAL;
 		goto error;
-	};
+	}
 
 	err = -EIO;
 	if (cfg_ret != PCIBIOS_SUCCESSFUL)
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 87cce50bd121..009b02481436 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -26,11 +26,11 @@ struct msi_desc {
 	struct {
 		__u8	is_msix	: 1;
 		__u8	multiple: 3;	/* log2 number of messages */
-		__u8	maskbit	: 1; 	/* mask-pending bit supported ?   */
-		__u8	is_64	: 1;	/* Address size: 0=32bit 1=64bit  */
-		__u8	pos;	 	/* Location of the msi capability */
-		__u16	entry_nr;    	/* specific enabled entry 	  */
-		unsigned default_irq;	/* default pre-assigned irq	  */
+		__u8	maskbit	: 1;	/* mask-pending bit supported ? */
+		__u8	is_64	: 1;	/* Address size: 0=32bit 1=64bit */
+		__u8	pos;		/* Location of the msi capability */
+		__u16	entry_nr;	/* specific enabled entry */
+		unsigned default_irq;	/* default pre-assigned irq */
 	} msi_attrib;
 
 	u32 masked;			/* mask bits */
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 835ec7bf6c05..1084a15175e0 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -32,7 +32,6 @@
 #include <linux/irqreturn.h>
 #include <uapi/linux/pci.h>
 
-/* Include the ID list */
 #include <linux/pci_ids.h>
 
 /*
@@ -42,9 +41,10 @@
  *
  *	7:3 = slot
  *	2:0 = function
- * PCI_DEVFN(), PCI_SLOT(), and PCI_FUNC() are defined uapi/linux/pci.h
+ *
+ * PCI_DEVFN(), PCI_SLOT(), and PCI_FUNC() are defined in uapi/linux/pci.h.
  * In the interest of not exposing interfaces to user-space unnecessarily,
- * the following kernel only defines are being added here.
+ * the following kernel-only defines are being added here.
  */
 #define PCI_DEVID(bus, devfn)  ((((u16)bus) << 8) | devfn)
 /* return bus from PCI devid = ((u16)bus_number) << 8) | devfn */
@@ -153,10 +153,10 @@ enum pcie_reset_state {
 	/* Reset is NOT asserted (Use to deassert reset) */
 	pcie_deassert_reset = (__force pcie_reset_state_t) 1,
 
-	/* Use #PERST to reset PCI-E device */
+	/* Use #PERST to reset PCIe device */
 	pcie_warm_reset = (__force pcie_reset_state_t) 2,
 
-	/* Use PCI-E Hot Reset to reset device */
+	/* Use PCIe Hot Reset to reset device */
 	pcie_hot_reset = (__force pcie_reset_state_t) 3
 };
 
@@ -259,13 +259,13 @@ struct pci_dev {
 	unsigned int	class;		/* 3 bytes: (base,sub,prog-if) */
 	u8		revision;	/* PCI revision, low byte of class word */
 	u8		hdr_type;	/* PCI header type (`multi' flag masked out) */
-	u8		pcie_cap;	/* PCI-E capability offset */
+	u8		pcie_cap;	/* PCIe capability offset */
 	u8		msi_cap;	/* MSI capability offset */
 	u8		msix_cap;	/* MSI-X capability offset */
-	u8		pcie_mpss:3;	/* PCI-E Max Payload Size Supported */
+	u8		pcie_mpss:3;	/* PCIe Max Payload Size Supported */
 	u8		rom_base_reg;	/* which config register controls the ROM */
-	u8		pin;  		/* which interrupt pin this device uses */
-	u16		pcie_flags_reg;	/* cached PCI-E Capabilities Register */
+	u8		pin;		/* which interrupt pin this device uses */
+	u16		pcie_flags_reg;	/* cached PCIe Capabilities Register */
 
 	struct pci_driver *driver;	/* which driver has allocated this device */
 	u64		dma_mask;	/* Mask of the bits of bus address this
@@ -300,7 +300,7 @@ struct pci_dev {
 	unsigned int	d3cold_delay;	/* D3cold->D0 transition time in ms */
 
 #ifdef CONFIG_PCIEASPM
-	struct pcie_link_state	*link_state;	/* ASPM link state. */
+	struct pcie_link_state	*link_state;	/* ASPM link state */
 #endif
 
 	pci_channel_state_t error_state;	/* current connectivity state */
@@ -317,7 +317,7 @@ struct pci_dev {
 
 	bool match_driver;		/* Skip attaching driver */
 	/* These fields are used by common fixups */
-	unsigned int	transparent:1;	/* Transparent PCI bridge */
+	unsigned int	transparent:1;	/* Subtractive decode PCI bridge */
 	unsigned int	multifunction:1;/* Part of multi-function device */
 	/* keep track of device state */
 	unsigned int	is_added:1;
@@ -326,7 +326,7 @@ struct pci_dev {
 	unsigned int	block_cfg_access:1;	/* config space access is blocked */
 	unsigned int	broken_parity_status:1;	/* Device generates false positive parity */
 	unsigned int	irq_reroute_variant:2;	/* device needs IRQ rerouting variant */
-	unsigned int 	msi_enabled:1;
+	unsigned int	msi_enabled:1;
 	unsigned int	msix_enabled:1;
 	unsigned int	ari_enabled:1;	/* ARI forwarding */
 	unsigned int	is_managed:1;
@@ -371,7 +371,6 @@ static inline struct pci_dev *pci_physfn(struct pci_dev *dev)
 	if (dev->is_virtfn)
 		dev = dev->physfn;
 #endif
-
 	return dev;
 }
 
@@ -456,7 +455,7 @@ struct pci_bus {
 	char		name[48];
 
 	unsigned short  bridge_ctl;	/* manage NO_ISA/FBB/et al behaviors */
-	pci_bus_flags_t bus_flags;	/* Inherited by child busses */
+	pci_bus_flags_t bus_flags;	/* inherited by child buses */
 	struct device		*bridge;
 	struct device		dev;
 	struct bin_attribute	*legacy_io; /* legacy I/O for this bus */
@@ -468,7 +467,7 @@ struct pci_bus {
 #define to_pci_bus(n)	container_of(n, struct pci_bus, dev)
 
 /*
- * Returns true if the pci bus is root (behind host-pci bridge),
+ * Returns true if the PCI bus is root (behind host-PCI bridge),
  * false otherwise
  *
  * Some code assumes that "bus->self == NULL" means that bus is a root bus.
@@ -510,7 +509,7 @@ static inline bool pci_dev_msi_enabled(struct pci_dev *pci_dev) { return false;
 #define PCIBIOS_BUFFER_TOO_SMALL	0x89
 
 /*
- * Translate above to generic errno for passing back through non-pci.
+ * Translate above to generic errno for passing back through non-PCI code.
  */
 static inline int pcibios_err_to_errno(int err)
 {
@@ -561,11 +560,12 @@ struct pci_dynids {
 	struct list_head list;      /* for IDs added at runtime */
 };
 
-/* ---------------------------------------------------------------- */
-/** PCI Error Recovery System (PCI-ERS).  If a PCI device driver provides
- *  a set of callbacks in struct pci_error_handlers, then that device driver
- *  will be notified of PCI bus errors, and will be driven to recovery
- *  when an error occurs.
+
+/*
+ * PCI Error Recovery System (PCI-ERS).  If a PCI device driver provides
+ * a set of callbacks in struct pci_error_handlers, that device driver
+ * will be notified of PCI bus errors, and will be driven to recovery
+ * when an error occurs.
  */
 
 typedef unsigned int __bitwise pci_ers_result_t;
@@ -609,7 +609,6 @@ struct pci_error_handlers {
 	void (*resume)(struct pci_dev *dev);
 };
 
-/* ---------------------------------------------------------------- */
 
 struct module;
 struct pci_driver {
@@ -713,10 +712,10 @@ extern enum pcie_bus_config_types pcie_bus_config;
 
 extern struct bus_type pci_bus_type;
 
-/* Do NOT directly access these two variables, unless you are arch specific pci
- * code, or pci core code. */
+/* Do NOT directly access these two variables, unless you are arch-specific PCI
+ * code, or PCI core code. */
 extern struct list_head pci_root_buses;	/* list of all known PCI buses */
-/* Some device drivers need know if pci is initiated */
+/* Some device drivers need know if PCI is initiated */
 int no_pci_devices(void);
 
 void pcibios_resource_survey_bus(struct pci_bus *bus);
@@ -724,7 +723,7 @@ void pcibios_add_bus(struct pci_bus *bus);
 void pcibios_remove_bus(struct pci_bus *bus);
 void pcibios_fixup_bus(struct pci_bus *);
 int __must_check pcibios_enable_device(struct pci_dev *, int mask);
-/* Architecture specific versions may override this (weak) */
+/* Architecture-specific versions may override this (weak) */
 char *pcibios_setup(char *str);
 
 /* Used only when drivers/pci/setup.c is used */
@@ -1258,7 +1257,7 @@ void pci_cfg_access_unlock(struct pci_dev *dev);
 
 /*
  * PCI domain support.  Sometimes called PCI segment (eg by ACPI),
- * a PCI domain is defined to be a set of PCI busses which share
+ * a PCI domain is defined to be a set of PCI buses which share
  * configuration space.
  */
 #ifdef CONFIG_PCI_DOMAINS
@@ -1672,7 +1671,7 @@ extern u8 pci_cache_line_size;
 extern unsigned long pci_hotplug_io_size;
 extern unsigned long pci_hotplug_mem_size;
 
-/* Architecture specific versions may override these (weak) */
+/* Architecture-specific versions may override these (weak) */
 int pcibios_add_platform_entries(struct pci_dev *dev);
 void pcibios_disable_device(struct pci_dev *dev);
 void pcibios_set_master(struct pci_dev *dev);
diff --git a/include/linux/pci_hotplug.h b/include/linux/pci_hotplug.h
index 430dd963707b..a2e2f1d17e16 100644
--- a/include/linux/pci_hotplug.h
+++ b/include/linux/pci_hotplug.h
@@ -39,8 +39,8 @@
  * @hardware_test: Called to run a specified hardware test on the specified
  * slot.
  * @get_power_status: Called to get the current power status of a slot.
- * 	If this field is NULL, the value passed in the struct hotplug_slot_info
- * 	will be used when this value is requested by a user.
+ *	If this field is NULL, the value passed in the struct hotplug_slot_info
+ *	will be used when this value is requested by a user.
  * @get_attention_status: Called to get the current attention status of a slot.
  *	If this field is NULL, the value passed in the struct hotplug_slot_info
  *	will be used when this value is requested by a user.
@@ -191,4 +191,3 @@ static inline int pci_get_hp_params(struct pci_dev *dev,
 
 void pci_configure_slot(struct pci_dev *dev);
 #endif
-
diff --git a/include/linux/pcieport_if.h b/include/linux/pcieport_if.h
index 9572669eea97..4f1089f2cc98 100644
--- a/include/linux/pcieport_if.h
+++ b/include/linux/pcieport_if.h
@@ -23,7 +23,7 @@
 #define PCIE_PORT_SERVICE_VC		(1 << PCIE_PORT_SERVICE_VC_SHIFT)
 
 struct pcie_device {
-	int 		irq;	    /* Service IRQ/MSI/MSI-X Vector */
+	int		irq;	    /* Service IRQ/MSI/MSI-X Vector */
 	struct pci_dev *port;	    /* Root/Upstream/Downstream Port */
 	u32		service;    /* Port service this device represents */
 	void		*priv_data; /* Service Private Data */
diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h
index 0890556f779e..4a98e85438a7 100644
--- a/include/uapi/linux/pci_regs.h
+++ b/include/uapi/linux/pci_regs.h
@@ -13,10 +13,10 @@
  *	PCI to PCI Bridge Specification
  *	PCI System Design Guide
  *
- * 	For hypertransport information, please consult the following manuals
- * 	from http://www.hypertransport.org
+ *	For HyperTransport information, please consult the following manuals
+ *	from http://www.hypertransport.org
  *
- *	The Hypertransport I/O Link Specification
+ *	The HyperTransport I/O Link Specification
  */
 
 #ifndef LINUX_PCI_REGS_H
@@ -37,7 +37,7 @@
 #define  PCI_COMMAND_INVALIDATE	0x10	/* Use memory write and invalidate */
 #define  PCI_COMMAND_VGA_PALETTE 0x20	/* Enable palette snooping */
 #define  PCI_COMMAND_PARITY	0x40	/* Enable parity checking */
-#define  PCI_COMMAND_WAIT 	0x80	/* Enable address/data stepping */
+#define  PCI_COMMAND_WAIT	0x80	/* Enable address/data stepping */
 #define  PCI_COMMAND_SERR	0x100	/* Enable SERR */
 #define  PCI_COMMAND_FAST_BACK	0x200	/* Enable back-to-back writes */
 #define  PCI_COMMAND_INTX_DISABLE 0x400 /* INTx Emulation Disable */
@@ -45,7 +45,7 @@
 #define PCI_STATUS		0x06	/* 16 bits */
 #define  PCI_STATUS_INTERRUPT	0x08	/* Interrupt status */
 #define  PCI_STATUS_CAP_LIST	0x10	/* Support Capability List */
-#define  PCI_STATUS_66MHZ	0x20	/* Support 66 Mhz PCI 2.1 bus */
+#define  PCI_STATUS_66MHZ	0x20	/* Support 66 MHz PCI 2.1 bus */
 #define  PCI_STATUS_UDF		0x40	/* Support User Definable Features [obsolete] */
 #define  PCI_STATUS_FAST_BACK	0x80	/* Accept fast-back to back */
 #define  PCI_STATUS_PARITY	0x100	/* Detected parity error */
@@ -205,14 +205,14 @@
 #define  PCI_CAP_ID_CHSWP	0x06	/* CompactPCI HotSwap */
 #define  PCI_CAP_ID_PCIX	0x07	/* PCI-X */
 #define  PCI_CAP_ID_HT		0x08	/* HyperTransport */
-#define  PCI_CAP_ID_VNDR	0x09	/* Vendor specific */
+#define  PCI_CAP_ID_VNDR	0x09	/* Vendor-Specific */
 #define  PCI_CAP_ID_DBG		0x0A	/* Debug port */
 #define  PCI_CAP_ID_CCRC	0x0B	/* CompactPCI Central Resource Control */
-#define  PCI_CAP_ID_SHPC 	0x0C	/* PCI Standard Hot-Plug Controller */
+#define  PCI_CAP_ID_SHPC	0x0C	/* PCI Standard Hot-Plug Controller */
 #define  PCI_CAP_ID_SSVID	0x0D	/* Bridge subsystem vendor/device ID */
 #define  PCI_CAP_ID_AGP3	0x0E	/* AGP Target PCI-PCI bridge */
 #define  PCI_CAP_ID_SECDEV	0x0F	/* Secure Device */
-#define  PCI_CAP_ID_EXP 	0x10	/* PCI Express */
+#define  PCI_CAP_ID_EXP		0x10	/* PCI Express */
 #define  PCI_CAP_ID_MSIX	0x11	/* MSI-X */
 #define  PCI_CAP_ID_SATA	0x12	/* SATA Data/Index Conf. */
 #define  PCI_CAP_ID_AF		0x13	/* PCI Advanced Features */
@@ -268,8 +268,8 @@
 #define  PCI_AGP_COMMAND_RQ_MASK 0xff000000  /* Master: Maximum number of requests */
 #define  PCI_AGP_COMMAND_SBA	0x0200	/* Sideband addressing enabled */
 #define  PCI_AGP_COMMAND_AGP	0x0100	/* Allow processing of AGP transactions */
-#define  PCI_AGP_COMMAND_64BIT	0x0020 	/* Allow processing of 64-bit addresses */
-#define  PCI_AGP_COMMAND_FW	0x0010 	/* Force FW transfers */
+#define  PCI_AGP_COMMAND_64BIT	0x0020	/* Allow processing of 64-bit addresses */
+#define  PCI_AGP_COMMAND_FW	0x0010	/* Force FW transfers */
 #define  PCI_AGP_COMMAND_RATE4	0x0004	/* Use 4x rate */
 #define  PCI_AGP_COMMAND_RATE2	0x0002	/* Use 2x rate */
 #define  PCI_AGP_COMMAND_RATE1	0x0001	/* Use 1x rate */
@@ -321,7 +321,7 @@
 #define  PCI_MSIX_PBA_OFFSET	0xfffffff8 /* Offset into specified BAR */
 #define PCI_CAP_MSIX_SIZEOF	12	/* size of MSIX registers */
 
-/* MSI-X entry's format */
+/* MSI-X Table entry format */
 #define PCI_MSIX_ENTRY_SIZE		16
 #define  PCI_MSIX_ENTRY_LOWER_ADDR	0
 #define  PCI_MSIX_ENTRY_UPPER_ADDR	4
@@ -372,7 +372,7 @@
 #define  PCI_X_CMD_SPLIT_16	0x0060	/* Max 16 */
 #define  PCI_X_CMD_SPLIT_32	0x0070	/* Max 32 */
 #define  PCI_X_CMD_MAX_SPLIT	0x0070	/* Max Outstanding Split Transactions */
-#define  PCI_X_CMD_VERSION(x) 	(((x) >> 12) & 3) /* Version */
+#define  PCI_X_CMD_VERSION(x)	(((x) >> 12) & 3) /* Version */
 #define PCI_X_STATUS		4	/* PCI-X capabilities */
 #define  PCI_X_STATUS_DEVFN	0x000000ff	/* A copy of devfn */
 #define  PCI_X_STATUS_BUS	0x0000ff00	/* A copy of bus nr */
@@ -407,8 +407,8 @@
 
 /* PCI Bridge Subsystem ID registers */
 
-#define PCI_SSVID_VENDOR_ID     4	/* PCI-Bridge subsystem vendor id register */
-#define PCI_SSVID_DEVICE_ID     6	/* PCI-Bridge subsystem device id register */
+#define PCI_SSVID_VENDOR_ID     4	/* PCI Bridge subsystem vendor ID */
+#define PCI_SSVID_DEVICE_ID     6	/* PCI Bridge subsystem device ID */
 
 /* PCI Express capability registers */
 
@@ -484,12 +484,12 @@
 #define  PCI_EXP_LNKCTL_CLKREQ_EN 0x0100 /* Enable clkreq */
 #define  PCI_EXP_LNKCTL_HAWD	0x0200	/* Hardware Autonomous Width Disable */
 #define  PCI_EXP_LNKCTL_LBMIE	0x0400	/* Link Bandwidth Management Interrupt Enable */
-#define  PCI_EXP_LNKCTL_LABIE	0x0800	/* Lnk Autonomous Bandwidth Interrupt Enable */
+#define  PCI_EXP_LNKCTL_LABIE	0x0800	/* Link Autonomous Bandwidth Interrupt Enable */
 #define PCI_EXP_LNKSTA		18	/* Link Status */
 #define  PCI_EXP_LNKSTA_CLS	0x000f	/* Current Link Speed */
 #define  PCI_EXP_LNKSTA_CLS_2_5GB 0x0001 /* Current Link Speed 2.5GT/s */
 #define  PCI_EXP_LNKSTA_CLS_5_0GB 0x0002 /* Current Link Speed 5.0GT/s */
-#define  PCI_EXP_LNKSTA_NLW	0x03f0	/* Nogotiated Link Width */
+#define  PCI_EXP_LNKSTA_NLW	0x03f0	/* Negotiated Link Width */
 #define  PCI_EXP_LNKSTA_NLW_SHIFT 4	/* start of NLW mask in link status */
 #define  PCI_EXP_LNKSTA_LT	0x0800	/* Link Training */
 #define  PCI_EXP_LNKSTA_SLC	0x1000	/* Slot Clock Configuration */
@@ -593,7 +593,7 @@
 #define PCI_EXT_CAP_ID_MFVC	0x08	/* Multi-Function VC Capability */
 #define PCI_EXT_CAP_ID_VC9	0x09	/* same as _VC */
 #define PCI_EXT_CAP_ID_RCRB	0x0A	/* Root Complex RB? */
-#define PCI_EXT_CAP_ID_VNDR	0x0B	/* Vendor Specific */
+#define PCI_EXT_CAP_ID_VNDR	0x0B	/* Vendor-Specific */
 #define PCI_EXT_CAP_ID_CAC	0x0C	/* Config Access - obsolete */
 #define PCI_EXT_CAP_ID_ACS	0x0D	/* Access Control Services */
 #define PCI_EXT_CAP_ID_ARI	0x0E	/* Alternate Routing ID */
@@ -602,12 +602,12 @@
 #define PCI_EXT_CAP_ID_MRIOV	0x11	/* Multi Root I/O Virtualization */
 #define PCI_EXT_CAP_ID_MCAST	0x12	/* Multicast */
 #define PCI_EXT_CAP_ID_PRI	0x13	/* Page Request Interface */
-#define PCI_EXT_CAP_ID_AMD_XXX	0x14	/* reserved for AMD */
-#define PCI_EXT_CAP_ID_REBAR	0x15	/* resizable BAR */
-#define PCI_EXT_CAP_ID_DPA	0x16	/* dynamic power alloc */
-#define PCI_EXT_CAP_ID_TPH	0x17	/* TPH request */
-#define PCI_EXT_CAP_ID_LTR	0x18	/* latency tolerance reporting */
-#define PCI_EXT_CAP_ID_SECPCI	0x19	/* Secondary PCIe */
+#define PCI_EXT_CAP_ID_AMD_XXX	0x14	/* Reserved for AMD */
+#define PCI_EXT_CAP_ID_REBAR	0x15	/* Resizable BAR */
+#define PCI_EXT_CAP_ID_DPA	0x16	/* Dynamic Power Allocation */
+#define PCI_EXT_CAP_ID_TPH	0x17	/* TPH Requester */
+#define PCI_EXT_CAP_ID_LTR	0x18	/* Latency Tolerance Reporting */
+#define PCI_EXT_CAP_ID_SECPCI	0x19	/* Secondary PCIe Capability */
 #define PCI_EXT_CAP_ID_PMUX	0x1A	/* Protocol Multiplexing */
 #define PCI_EXT_CAP_ID_PASID	0x1B	/* Process Address Space ID */
 #define PCI_EXT_CAP_ID_MAX	PCI_EXT_CAP_ID_PASID
@@ -667,9 +667,9 @@
 #define PCI_ERR_ROOT_COR_RCV		0x00000001	/* ERR_COR Received */
 /* Multi ERR_COR Received */
 #define PCI_ERR_ROOT_MULTI_COR_RCV	0x00000002
-/* ERR_FATAL/NONFATAL Recevied */
+/* ERR_FATAL/NONFATAL Received */
 #define PCI_ERR_ROOT_UNCOR_RCV		0x00000004
-/* Multi ERR_FATAL/NONFATAL Recevied */
+/* Multi ERR_FATAL/NONFATAL Received */
 #define PCI_ERR_ROOT_MULTI_UNCOR_RCV	0x00000008
 #define PCI_ERR_ROOT_FIRST_FATAL	0x00000010	/* First Fatal */
 #define PCI_ERR_ROOT_NONFATAL_RCV	0x00000020	/* Non-Fatal Received */
@@ -678,7 +678,7 @@
 
 /* Virtual Channel */
 #define PCI_VC_PORT_REG1	4
-#define  PCI_VC_REG1_EVCC	0x7	/* extended vc count */
+#define  PCI_VC_REG1_EVCC	0x7	/* extended VC count */
 #define PCI_VC_PORT_REG2	8
 #define  PCI_VC_REG2_32_PHASE	0x2
 #define  PCI_VC_REG2_64_PHASE	0x4
@@ -711,7 +711,7 @@
 #define  PCI_VNDR_HEADER_LEN(x)	(((x) >> 20) & 0xfff)
 
 /*
- * Hypertransport sub capability types
+ * HyperTransport sub capability types
  *
  * Unfortunately there are both 3 bit and 5 bit capability types defined
  * in the HT spec, catering for that is a little messy. You probably don't
@@ -739,8 +739,8 @@
 #define HT_CAPTYPE_DIRECT_ROUTE	0xB0	/* Direct routing configuration */
 #define HT_CAPTYPE_VCSET	0xB8	/* Virtual Channel configuration */
 #define HT_CAPTYPE_ERROR_RETRY	0xC0	/* Retry on error configuration */
-#define HT_CAPTYPE_GEN3		0xD0	/* Generation 3 hypertransport configuration */
-#define HT_CAPTYPE_PM		0xE0	/* Hypertransport powermanagement configuration */
+#define HT_CAPTYPE_GEN3		0xD0	/* Generation 3 HyperTransport configuration */
+#define HT_CAPTYPE_PM		0xE0	/* HyperTransport power management configuration */
 #define HT_CAP_SIZEOF_LONG	28	/* slave & primary */
 #define HT_CAP_SIZEOF_SHORT	24	/* host & secondary */
 
@@ -777,14 +777,14 @@
 #define PCI_PRI_ALLOC_REQ	0x0c	/* PRI max reqs allowed */
 #define PCI_EXT_CAP_PRI_SIZEOF	16
 
-/* PASID capability */
+/* Process Address Space ID */
 #define PCI_PASID_CAP		0x04    /* PASID feature register */
 #define  PCI_PASID_CAP_EXEC	0x02	/* Exec permissions Supported */
-#define  PCI_PASID_CAP_PRIV	0x04	/* Priviledge Mode Supported */
+#define  PCI_PASID_CAP_PRIV	0x04	/* Privilege Mode Supported */
 #define PCI_PASID_CTRL		0x06    /* PASID control register */
 #define  PCI_PASID_CTRL_ENABLE	0x01	/* Enable bit */
 #define  PCI_PASID_CTRL_EXEC	0x02	/* Exec permissions Enable */
-#define  PCI_PASID_CTRL_PRIV	0x04	/* Priviledge Mode Enable */
+#define  PCI_PASID_CTRL_PRIV	0x04	/* Privilege Mode Enable */
 #define PCI_EXT_CAP_PASID_SIZEOF	8
 
 /* Single Root I/O Virtualization */
@@ -839,22 +839,22 @@
 #define PCI_ACS_CTRL		0x06	/* ACS Control Register */
 #define PCI_ACS_EGRESS_CTL_V	0x08	/* ACS Egress Control Vector */
 
-#define PCI_VSEC_HDR		4	/* extended cap - vendor specific */
+#define PCI_VSEC_HDR		4	/* extended cap - vendor-specific */
 #define  PCI_VSEC_HDR_LEN_SHIFT	20	/* shift for length field */
 
-/* sata capability */
+/* SATA capability */
 #define PCI_SATA_REGS		4	/* SATA REGs specifier */
 #define  PCI_SATA_REGS_MASK	0xF	/* location - BAR#/inline */
 #define  PCI_SATA_REGS_INLINE	0xF	/* REGS in config space */
 #define PCI_SATA_SIZEOF_SHORT	8
 #define PCI_SATA_SIZEOF_LONG	16
 
-/* resizable BARs */
+/* Resizable BARs */
 #define PCI_REBAR_CTRL		8	/* control register */
 #define  PCI_REBAR_CTRL_NBAR_MASK	(7 << 5)	/* mask for # bars */
 #define  PCI_REBAR_CTRL_NBAR_SHIFT	5	/* shift for # bars */
 
-/* dynamic power allocation */
+/* Dynamic Power Allocation */
 #define PCI_DPA_CAP		4	/* capability register */
 #define  PCI_DPA_CAP_SUBSTATE_MASK	0x1F	/* # substates - 1 */
 #define PCI_DPA_BASE_SIZEOF	16	/* size with 0 substates */
-- 
cgit 


From 30e3488cbfe6e8af0832be715081c49b08299b73 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 25 Oct 2013 17:31:51 +0800
Subject: ARM: OMAP2+: smsc911x: fix return value check in gpmc_smsc911x_init()

In case of error, the function platform_device_register_resndata()
returns ERR_PTR() and never returns NULL. The NULL test in the return
value check should be replaced with IS_ERR().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/gpmc-smsc911x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-omap2/gpmc-smsc911x.c b/arch/arm/mach-omap2/gpmc-smsc911x.c
index ef990118d32b..2757504a13c4 100644
--- a/arch/arm/mach-omap2/gpmc-smsc911x.c
+++ b/arch/arm/mach-omap2/gpmc-smsc911x.c
@@ -83,7 +83,7 @@ void __init gpmc_smsc911x_init(struct omap_smsc911x_platform_data *gpmc_cfg)
 	pdev = platform_device_register_resndata(NULL, "smsc911x", gpmc_cfg->id,
 		 gpmc_smsc911x_resources, ARRAY_SIZE(gpmc_smsc911x_resources),
 		 &gpmc_smsc911x_config, sizeof(gpmc_smsc911x_config));
-	if (!pdev) {
+	if (IS_ERR(pdev)) {
 		pr_err("Unable to register platform device\n");
 		gpio_free(gpmc_cfg->gpio_reset);
 		goto free2;
-- 
cgit 


From 5f8a1b8a7b55937842c1c6b03c002134aacd7393 Mon Sep 17 00:00:00 2001
From: Aristeu Rozanski <arozansk@redhat.com>
Date: Wed, 30 Oct 2013 13:26:58 -0300
Subject: sb_edac: rename pci_br

Ivy Bridge has more than one, so rename pci_br to pci_br0

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/edac/sb_edac.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index bc434ad5465d..cc4fe466236e 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -309,7 +309,7 @@ struct sbridge_dev {
 struct sbridge_pvt {
 	struct pci_dev		*pci_ta, *pci_ddrio, *pci_ras;
 	struct pci_dev		*pci_sad0, *pci_sad1, *pci_ha0;
-	struct pci_dev		*pci_br;
+	struct pci_dev		*pci_br0;
 	struct pci_dev		*pci_tad[NUM_CHANNELS];
 
 	struct sbridge_dev	*sbridge_dev;
@@ -534,10 +534,10 @@ static int get_dimm_config(struct mem_ctl_info *mci)
 
 	pvt->info.rankcfgr = SB_RANK_CFG_A;
 
-	pci_read_config_dword(pvt->pci_br, SAD_TARGET, &reg);
+	pci_read_config_dword(pvt->pci_br0, SAD_TARGET, &reg);
 	pvt->sbridge_dev->source_id = SOURCE_ID(reg);
 
-	pci_read_config_dword(pvt->pci_br, SAD_CONTROL, &reg);
+	pci_read_config_dword(pvt->pci_br0, SAD_CONTROL, &reg);
 	pvt->sbridge_dev->node_id = NODE_ID(reg);
 	edac_dbg(0, "mc#%d: Node ID: %d, source ID: %d\n",
 		 pvt->sbridge_dev->mc,
@@ -1267,7 +1267,7 @@ static int mci_bind_devs(struct mem_ctl_info *mci,
 		case 13:
 			switch (func) {
 			case 6:
-				pvt->pci_br = pdev;
+				pvt->pci_br0 = pdev;
 				break;
 			default:
 				goto error;
-- 
cgit 


From c9b3a7d227068ccf25f435b1b0720ccc73ee5178 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Fri, 11 Oct 2013 19:13:16 +0300
Subject: pinctrl: single: call pcs_soc->rearm() whenever IRQ mask is changed

On OMAPs the IO ring must be rearmed each time the pad wakeup
configuration is changed. So call pcs_soc->rearm() from
pcs_irq_set().

As pinctrl-single is now an interrupt controller in some cases,
we should follow the standards and keep the interrupts enabled
constantly, and not just for wake-up events. The tracking of
runtime vs wake-up interrupts can be handled separately for
the automated runtime PM solution when we have it in the
future.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
[tony@atomide.com: removed wrong comment, updated description]
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 drivers/pinctrl/pinctrl-single.c | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index 0846922b2316..829b98c5c66f 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -1604,6 +1604,9 @@ static inline void pcs_irq_set(struct pcs_soc_data *pcs_soc,
 		pcs->write(mask, pcswi->reg);
 		raw_spin_unlock(&pcs->lock);
 	}
+
+	if (pcs_soc->rearm)
+		pcs_soc->rearm();
 }
 
 /**
@@ -1626,8 +1629,6 @@ static void pcs_irq_unmask(struct irq_data *d)
 	struct pcs_soc_data *pcs_soc = irq_data_get_irq_chip_data(d);
 
 	pcs_irq_set(pcs_soc, d->irq, true);
-	if (pcs_soc->rearm)
-		pcs_soc->rearm();
 }
 
 /**
@@ -1678,11 +1679,6 @@ static int pcs_irq_handle(struct pcs_soc_data *pcs_soc)
 		}
 	}
 
-	/*
-	 * For debugging on omaps, you may want to call pcs_soc->rearm()
-	 * here to see wake-up interrupts during runtime also.
-	 */
-
 	return count;
 }
 
-- 
cgit 


From 8fd6a43ac9300c2451823f390c0301770973bc36 Mon Sep 17 00:00:00 2001
From: Aristeu Rozanski <arozansk@redhat.com>
Date: Wed, 30 Oct 2013 13:26:59 -0300
Subject: sb_edac: isolate TOHM retrieval

This is preparation of Ivy Bridge support.

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/edac/sb_edac.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index cc4fe466236e..4ec4957b484c 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -278,6 +278,7 @@ struct sbridge_info {
 	u32	mcmtr;
 	u32	rankcfgr;
 	u64	(*get_tolm)(struct sbridge_pvt *pvt);
+	u64	(*get_tohm)(struct sbridge_pvt *pvt);
 };
 
 struct sbridge_channel {
@@ -470,6 +471,14 @@ static u64 sbridge_get_tolm(struct sbridge_pvt *pvt)
 	return GET_TOLM(reg);
 }
 
+static u64 sbridge_get_tohm(struct sbridge_pvt *pvt)
+{
+	u32 reg;
+
+	pci_read_config_dword(pvt->pci_sad1, TOHM, &reg);
+	return GET_TOHM(reg);
+}
+
 /****************************************************************************
 			Memory check routines
  ****************************************************************************/
@@ -651,9 +660,7 @@ static void get_memory_layout(const struct mem_ctl_info *mci)
 	edac_dbg(0, "TOLM: %u.%03u GB (0x%016Lx)\n", mb, kb, (u64)pvt->tolm);
 
 	/* Address range is already 45:25 */
-	pci_read_config_dword(pvt->pci_sad1, TOHM,
-			      &reg);
-	pvt->tohm = GET_TOHM(reg);
+	pvt->tohm = pvt->info.get_tohm(pvt);
 	tmp_mb = (1 + pvt->tohm) >> 20;
 
 	mb = div_u64_rem(tmp_mb, 1000, &kb);
@@ -1670,6 +1677,7 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev)
 	mci->dev_name = pci_name(sbridge_dev->pdev[0]);
 	mci->ctl_page_to_phys = NULL;
 	pvt->info.get_tolm = sbridge_get_tolm;
+	pvt->info.get_tohm = sbridge_get_tohm;
 
 	/* Set the function pointer to an actual operation function */
 	mci->edac_check = sbridge_check_error;
-- 
cgit 


From 7b0d0cce3b441597d3a66a8951c2f3e70071c6cc Mon Sep 17 00:00:00 2001
From: Eric Witcher <ewitcher@mindspring.com>
Date: Fri, 18 Oct 2013 06:01:08 -0400
Subject: ARM: OMAP: devicetree: fix SPI node compatible property syntax items

Correct the SPI node compatible property items to match example code and
match current DTS usage.

Signed-off-by: Eric Witcher <ewitcher@mindspring.com>
Acked-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 Documentation/devicetree/bindings/spi/omap-spi.txt | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/spi/omap-spi.txt b/Documentation/devicetree/bindings/spi/omap-spi.txt
index 4c85c4c69584..2ba5f9c023ac 100644
--- a/Documentation/devicetree/bindings/spi/omap-spi.txt
+++ b/Documentation/devicetree/bindings/spi/omap-spi.txt
@@ -2,8 +2,8 @@ OMAP2+ McSPI device
 
 Required properties:
 - compatible :
-  - "ti,omap2-spi" for OMAP2 & OMAP3.
-  - "ti,omap4-spi" for OMAP4+.
+  - "ti,omap2-mcspi" for OMAP2 & OMAP3.
+  - "ti,omap4-mcspi" for OMAP4+.
 - ti,spi-num-cs : Number of chipselect supported  by the instance.
 - ti,hwmods: Name of the hwmod associated to the McSPI
 - ti,pindir-d0-out-d1-in: Select the D0 pin as output and D1 as
-- 
cgit 


From 30aeadd44deea3f3b0df45b9a70ee0fd5f8d6dc2 Mon Sep 17 00:00:00 2001
From: Jonathan Austin <jonathan.austin@arm.com>
Date: Thu, 29 Aug 2013 18:41:11 +0100
Subject: ARM: integrator_cp: Set LCD{0,1} enable lines when turning on CLCD

This turns on the internal integrator LCD display(s). It seems that the code
to do this got lost in refactoring of the CLCD driver.

Signed-off-by: Jonathan Austin <jonathan.austin@arm.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: stable@vger.kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/mach-integrator/integrator_cp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-integrator/integrator_cp.c b/arch/arm/mach-integrator/integrator_cp.c
index 1df6e7602cad..4fc0a195de01 100644
--- a/arch/arm/mach-integrator/integrator_cp.c
+++ b/arch/arm/mach-integrator/integrator_cp.c
@@ -198,7 +198,8 @@ static struct mmci_platform_data mmc_data = {
 static void cp_clcd_enable(struct clcd_fb *fb)
 {
 	struct fb_var_screeninfo *var = &fb->fb.var;
-	u32 val = CM_CTRL_STATIC1 | CM_CTRL_STATIC2;
+	u32 val = CM_CTRL_STATIC1 | CM_CTRL_STATIC2
+			| CM_CTRL_LCDEN0 | CM_CTRL_LCDEN1;
 
 	if (var->bits_per_pixel <= 8 ||
 	    (var->bits_per_pixel == 16 && var->green.length == 5))
-- 
cgit 


From 4fde38bb5bedfc9a395c07282476b3a0bd468a20 Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Sat, 9 Nov 2013 20:13:22 -0800
Subject: ARM: vt8500: add defconfig for v6/v7 chips

Add a single-vendor config for vt8500. We can't enable WM8750 in
multi_v7_defconfig since it's a v6-based device, but it's still valuable
to have an in-tree defconfig that is suitable for the hardware.

This is based on multi_v7_defconfig and can be tweaked over time. It
gets us off the ground for now. Naming it vt8500_v6_v7 similar to i.MX
since there are v5-based vt8500 chips as well.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Tony Prisk <linux@prisktech.co.nz>
---
 arch/arm/configs/vt8500_v6_v7_defconfig | 90 +++++++++++++++++++++++++++++++++
 1 file changed, 90 insertions(+)
 create mode 100644 arch/arm/configs/vt8500_v6_v7_defconfig

diff --git a/arch/arm/configs/vt8500_v6_v7_defconfig b/arch/arm/configs/vt8500_v6_v7_defconfig
new file mode 100644
index 000000000000..f0520176acd0
--- /dev/null
+++ b/arch/arm/configs/vt8500_v6_v7_defconfig
@@ -0,0 +1,90 @@
+CONFIG_IRQ_DOMAIN_DEBUG=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_ARCH_MULTI_V6=y
+CONFIG_ARCH_WM8750=y
+CONFIG_ARCH_WM8850=y
+CONFIG_ARM_ERRATA_720789=y
+CONFIG_ARM_ERRATA_754322=y
+CONFIG_ARM_ERRATA_775420=y
+CONFIG_HAVE_ARM_ARCH_TIMER=y
+CONFIG_AEABI=y
+CONFIG_HIGHMEM=y
+CONFIG_HIGHPTE=y
+CONFIG_ARM_APPENDED_DTB=y
+CONFIG_ARM_ATAG_DTB_COMPAT=y
+CONFIG_VFP=y
+CONFIG_NEON=y
+CONFIG_PM_RUNTIME=y
+CONFIG_NET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_PROC_DEVICETREE=y
+CONFIG_EEPROM_93CX6=y
+CONFIG_SCSI=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_NETDEVICES=y
+# CONFIG_NET_CADENCE is not set
+# CONFIG_NET_VENDOR_BROADCOM is not set
+# CONFIG_NET_VENDOR_CIRRUS is not set
+# CONFIG_NET_VENDOR_FARADAY is not set
+# CONFIG_NET_VENDOR_INTEL is not set
+# CONFIG_NET_VENDOR_MARVELL is not set
+# CONFIG_NET_VENDOR_MICREL is not set
+# CONFIG_NET_VENDOR_NATSEMI is not set
+# CONFIG_NET_VENDOR_SEEQ is not set
+# CONFIG_NET_VENDOR_SMSC is not set
+# CONFIG_NET_VENDOR_STMICRO is not set
+CONFIG_VIA_VELOCITY=y
+# CONFIG_NET_VENDOR_WIZNET is not set
+CONFIG_PHYLIB=y
+CONFIG_INPUT_MATRIXKMAP=y
+CONFIG_SERIAL_VT8500=y
+CONFIG_SERIAL_VT8500_CONSOLE=y
+CONFIG_I2C=y
+CONFIG_I2C_WMT=y
+CONFIG_PINCTRL_SINGLE=y
+CONFIG_PINCTRL_WM8750=y
+CONFIG_GPIO_GENERIC_PLATFORM=y
+CONFIG_POWER_SUPPLY=y
+CONFIG_POWER_RESET=y
+CONFIG_MFD_SYSCON=y
+CONFIG_REGULATOR=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
+CONFIG_REGULATOR_GPIO=y
+CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_HCD_PLATFORM=y
+CONFIG_USB_UHCI_HCD=y
+CONFIG_USB_STORAGE=y
+CONFIG_NOP_USB_XCEIV=y
+CONFIG_USB_GPIO_VBUS=y
+CONFIG_USB_ULPI=y
+CONFIG_MMC=y
+CONFIG_MMC_DEBUG=y
+CONFIG_NEW_LEDS=y
+CONFIG_LEDS_CLASS=y
+CONFIG_LEDS_TRIGGERS=y
+CONFIG_RTC_CLASS=y
+CONFIG_RTC_DRV_VT8500=y
+CONFIG_DMADEVICES=y
+CONFIG_COMMON_CLK_DEBUG=y
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_PWM=y
+CONFIG_PWM_VT8500=y
+CONFIG_RESET_CONTROLLER=y
+CONFIG_GENERIC_PHY=y
+CONFIG_EXT4_FS=y
+CONFIG_TMPFS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3_ACL=y
+CONFIG_NFS_V4=y
+CONFIG_ROOT_NFS=y
+CONFIG_PRINTK_TIME=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_LOCKUP_DETECTOR=y
-- 
cgit 


From cd198d6dc40fc32ee81432fa0df1a27c290b3436 Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Tue, 12 Nov 2013 13:03:16 -0700
Subject: ARM: tegra: init fuse before setting reset handler

CPU reset handler was set before fuse is initialized, but
tegra_cpu_reset_handler_enable() uses tegra_chip_id, which is set by
tegra_init_fuse(). This patch reorders the calls so the CPU reset
handler code does not read an uninitialized variable.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/mach-tegra/tegra.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-tegra/tegra.c b/arch/arm/mach-tegra/tegra.c
index ce553d557c31..73368176c6e8 100644
--- a/arch/arm/mach-tegra/tegra.c
+++ b/arch/arm/mach-tegra/tegra.c
@@ -90,9 +90,9 @@ static void __init tegra_init_cache(void)
 
 static void __init tegra_init_early(void)
 {
-	tegra_cpu_reset_handler_init();
 	tegra_apb_io_init();
 	tegra_init_fuse();
+	tegra_cpu_reset_handler_init();
 	tegra_init_cache();
 	tegra_powergate_init();
 	tegra_hotplug_init();
-- 
cgit 


From a48c4904a91933ce4180ed00b71c99efaf54146d Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Wed, 13 Nov 2013 16:38:07 -0800
Subject: ARM: sti: only select errata 764369 if SMP

764369 depends on SMP, so don't select it on !SMP configs.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Cc: Stuart Menefy <stuart.menefy@st.com>
---
 arch/arm/mach-sti/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-sti/Kconfig b/arch/arm/mach-sti/Kconfig
index 835833e3c4f8..939ddb8f482b 100644
--- a/arch/arm/mach-sti/Kconfig
+++ b/arch/arm/mach-sti/Kconfig
@@ -12,7 +12,7 @@ menuconfig ARCH_STI
 	select HAVE_ARM_SCU if SMP
 	select ARCH_REQUIRE_GPIOLIB
 	select ARM_ERRATA_754322
-	select ARM_ERRATA_764369
+	select ARM_ERRATA_764369 if SMP
 	select ARM_ERRATA_775420
 	select PL310_ERRATA_753970 if CACHE_PL310
 	select PL310_ERRATA_769419 if CACHE_PL310
-- 
cgit 


From be9b01675e1d178040bae531bfc0216ebbd0f9b8 Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Wed, 13 Nov 2013 16:39:36 -0800
Subject: ARM: highbank: only select errata 764369 if SMP

764369 depends on SMP, so don't select it on !SMP configs.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Rob Herring <rob.herring@calxeda.com>
---
 arch/arm/mach-highbank/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-highbank/Kconfig b/arch/arm/mach-highbank/Kconfig
index fe98df44579c..6e1d72326454 100644
--- a/arch/arm/mach-highbank/Kconfig
+++ b/arch/arm/mach-highbank/Kconfig
@@ -6,7 +6,7 @@ config ARCH_HIGHBANK
 	select ARCH_HAS_OPP
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARM_AMBA
-	select ARM_ERRATA_764369
+	select ARM_ERRATA_764369 if SMP
 	select ARM_ERRATA_775420
 	select ARM_ERRATA_798181
 	select ARM_GIC
-- 
cgit 


From 464f1d829afd51ff3b7e43da480c86148d5ff924 Mon Sep 17 00:00:00 2001
From: Aristeu Rozanski <arozansk@redhat.com>
Date: Wed, 30 Oct 2013 13:27:00 -0300
Subject: sb_edac: allow different dram_rule arrays

This is in preparation for Ivy Bridge support

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/edac/sb_edac.c | 25 ++++++++++++++-----------
 1 file changed, 14 insertions(+), 11 deletions(-)

diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index 4ec4957b484c..c42dec232507 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -83,11 +83,10 @@ static int probed;
 #define PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_ERR3	0x3c77	/* 16.7 */
 
 /* Devices 12 Function 6, Offsets 0x80 to 0xcc */
-static const u32 dram_rule[] = {
+static const u32 sbridge_dram_rule[] = {
 	0x80, 0x88, 0x90, 0x98, 0xa0,
 	0xa8, 0xb0, 0xb8, 0xc0, 0xc8,
 };
-#define MAX_SAD		ARRAY_SIZE(dram_rule)
 
 #define SAD_LIMIT(reg)		((GET_BITFIELD(reg, 6, 25) << 26) | 0x3ffffff)
 #define DRAM_ATTR(reg)		GET_BITFIELD(reg, 2,  3)
@@ -275,10 +274,12 @@ static const u32 correrrthrsld[] = {
 
 struct sbridge_pvt;
 struct sbridge_info {
-	u32	mcmtr;
-	u32	rankcfgr;
-	u64	(*get_tolm)(struct sbridge_pvt *pvt);
-	u64	(*get_tohm)(struct sbridge_pvt *pvt);
+	u32		mcmtr;
+	u32		rankcfgr;
+	u64		(*get_tolm)(struct sbridge_pvt *pvt);
+	u64		(*get_tohm)(struct sbridge_pvt *pvt);
+	const u32	*dram_rule;
+	u8		max_sad;
 };
 
 struct sbridge_channel {
@@ -673,9 +674,9 @@ static void get_memory_layout(const struct mem_ctl_info *mci)
 	 * algorithm bellow.
 	 */
 	prv = 0;
-	for (n_sads = 0; n_sads < MAX_SAD; n_sads++) {
+	for (n_sads = 0; n_sads < pvt->info.max_sad; n_sads++) {
 		/* SAD_LIMIT Address range is 45:26 */
-		pci_read_config_dword(pvt->pci_sad0, dram_rule[n_sads],
+		pci_read_config_dword(pvt->pci_sad0, pvt->info.dram_rule[n_sads],
 				      &reg);
 		limit = SAD_LIMIT(reg);
 
@@ -847,8 +848,8 @@ static int get_memory_error_data(struct mem_ctl_info *mci,
 	/*
 	 * Step 1) Get socket
 	 */
-	for (n_sads = 0; n_sads < MAX_SAD; n_sads++) {
-		pci_read_config_dword(pvt->pci_sad0, dram_rule[n_sads],
+	for (n_sads = 0; n_sads < pvt->info.max_sad; n_sads++) {
+		pci_read_config_dword(pvt->pci_sad0, pvt->info.dram_rule[n_sads],
 				      &reg);
 
 		if (!DRAM_RULE_ENABLE(reg))
@@ -863,7 +864,7 @@ static int get_memory_error_data(struct mem_ctl_info *mci,
 			break;
 		prv = limit;
 	}
-	if (n_sads == MAX_SAD) {
+	if (n_sads == pvt->info.max_sad) {
 		sprintf(msg, "Can't discover the memory socket");
 		return -EINVAL;
 	}
@@ -1678,6 +1679,8 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev)
 	mci->ctl_page_to_phys = NULL;
 	pvt->info.get_tolm = sbridge_get_tolm;
 	pvt->info.get_tohm = sbridge_get_tohm;
+	pvt->info.dram_rule = sbridge_dram_rule;
+	pvt->info.max_sad = ARRAY_SIZE(sbridge_dram_rule);
 
 	/* Set the function pointer to an actual operation function */
 	mci->edac_check = sbridge_check_error;
-- 
cgit 


From ef1ce51e7b35c0785b2bb1b03f4202de4a702a43 Mon Sep 17 00:00:00 2001
From: Aristeu Rozanski <arozansk@redhat.com>
Date: Wed, 30 Oct 2013 13:27:01 -0300
Subject: sb_edac: allow different interleave lists

This is in preparation for Ivy Bridge support

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/edac/sb_edac.c | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index c42dec232507..82318d4062a7 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -107,11 +107,10 @@ static char *get_dram_attr(u32 reg)
 	}
 }
 
-static const u32 interleave_list[] = {
+static const u32 sbridge_interleave_list[] = {
 	0x84, 0x8c, 0x94, 0x9c, 0xa4,
 	0xac, 0xb4, 0xbc, 0xc4, 0xcc,
 };
-#define MAX_INTERLEAVE	ARRAY_SIZE(interleave_list)
 
 #define SAD_PKG0(reg)		GET_BITFIELD(reg, 0, 2)
 #define SAD_PKG1(reg)		GET_BITFIELD(reg, 3, 5)
@@ -279,7 +278,9 @@ struct sbridge_info {
 	u64		(*get_tolm)(struct sbridge_pvt *pvt);
 	u64		(*get_tohm)(struct sbridge_pvt *pvt);
 	const u32	*dram_rule;
+	const u32	*interleave_list;
 	u8		max_sad;
+	u8		max_interleave;
 };
 
 struct sbridge_channel {
@@ -697,7 +698,7 @@ static void get_memory_layout(const struct mem_ctl_info *mci)
 			 reg);
 		prv = limit;
 
-		pci_read_config_dword(pvt->pci_sad0, interleave_list[n_sads],
+		pci_read_config_dword(pvt->pci_sad0, pvt->info.interleave_list[n_sads],
 				      &reg);
 		sad_interl = sad_pkg(reg, 0);
 		for (j = 0; j < 8; j++) {
@@ -820,7 +821,7 @@ static int get_memory_error_data(struct mem_ctl_info *mci,
 	int 			n_rir, n_sads, n_tads, sad_way, sck_xch;
 	int			sad_interl, idx, base_ch;
 	int			interleave_mode;
-	unsigned		sad_interleave[MAX_INTERLEAVE];
+	unsigned		sad_interleave[pvt->info.max_interleave];
 	u32			reg;
 	u8			ch_way,sck_way;
 	u32			tad_offset;
@@ -871,7 +872,7 @@ static int get_memory_error_data(struct mem_ctl_info *mci,
 	*area_type = get_dram_attr(reg);
 	interleave_mode = INTERLEAVE_MODE(reg);
 
-	pci_read_config_dword(pvt->pci_sad0, interleave_list[n_sads],
+	pci_read_config_dword(pvt->pci_sad0, pvt->info.interleave_list[n_sads],
 			      &reg);
 	sad_interl = sad_pkg(reg, 0);
 	for (sad_way = 0; sad_way < 8; sad_way++) {
@@ -1681,6 +1682,8 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev)
 	pvt->info.get_tohm = sbridge_get_tohm;
 	pvt->info.dram_rule = sbridge_dram_rule;
 	pvt->info.max_sad = ARRAY_SIZE(sbridge_dram_rule);
+	pvt->info.interleave_list = sbridge_interleave_list;
+	pvt->info.max_interleave = ARRAY_SIZE(sbridge_interleave_list);
 
 	/* Set the function pointer to an actual operation function */
 	mci->edac_check = sbridge_check_error;
-- 
cgit 


From cc311991a7ac68b60df1bb5ec26e4978cf66f6b0 Mon Sep 17 00:00:00 2001
From: Aristeu Rozanski <arozansk@redhat.com>
Date: Wed, 30 Oct 2013 13:27:02 -0300
Subject: sb_edac: rework sad_pkg

This is in preparation for Ivy Bridge support

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/edac/sb_edac.c | 66 +++++++++++++++++++++++---------------------------
 1 file changed, 30 insertions(+), 36 deletions(-)

diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index 82318d4062a7..718f623f010f 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -112,37 +112,27 @@ static const u32 sbridge_interleave_list[] = {
 	0xac, 0xb4, 0xbc, 0xc4, 0xcc,
 };
 
-#define SAD_PKG0(reg)		GET_BITFIELD(reg, 0, 2)
-#define SAD_PKG1(reg)		GET_BITFIELD(reg, 3, 5)
-#define SAD_PKG2(reg)		GET_BITFIELD(reg, 8, 10)
-#define SAD_PKG3(reg)		GET_BITFIELD(reg, 11, 13)
-#define SAD_PKG4(reg)		GET_BITFIELD(reg, 16, 18)
-#define SAD_PKG5(reg)		GET_BITFIELD(reg, 19, 21)
-#define SAD_PKG6(reg)		GET_BITFIELD(reg, 24, 26)
-#define SAD_PKG7(reg)		GET_BITFIELD(reg, 27, 29)
-
-static inline int sad_pkg(u32 reg, int interleave)
+struct interleave_pkg {
+	unsigned char start;
+	unsigned char end;
+};
+
+static const struct interleave_pkg sbridge_interleave_pkg[] = {
+	{ 0, 2 },
+	{ 3, 5 },
+	{ 8, 10 },
+	{ 11, 13 },
+	{ 16, 18 },
+	{ 19, 21 },
+	{ 24, 26 },
+	{ 27, 29 },
+};
+
+static inline int sad_pkg(const struct interleave_pkg *table, u32 reg,
+			  int interleave)
 {
-	switch (interleave) {
-	case 0:
-		return SAD_PKG0(reg);
-	case 1:
-		return SAD_PKG1(reg);
-	case 2:
-		return SAD_PKG2(reg);
-	case 3:
-		return SAD_PKG3(reg);
-	case 4:
-		return SAD_PKG4(reg);
-	case 5:
-		return SAD_PKG5(reg);
-	case 6:
-		return SAD_PKG6(reg);
-	case 7:
-		return SAD_PKG7(reg);
-	default:
-		return -EINVAL;
-	}
+	return GET_BITFIELD(reg, table[interleave].start,
+			    table[interleave].end);
 }
 
 /* Devices 12 Function 7 */
@@ -279,6 +269,7 @@ struct sbridge_info {
 	u64		(*get_tohm)(struct sbridge_pvt *pvt);
 	const u32	*dram_rule;
 	const u32	*interleave_list;
+	const struct interleave_pkg *interleave_pkg;
 	u8		max_sad;
 	u8		max_interleave;
 };
@@ -700,13 +691,14 @@ static void get_memory_layout(const struct mem_ctl_info *mci)
 
 		pci_read_config_dword(pvt->pci_sad0, pvt->info.interleave_list[n_sads],
 				      &reg);
-		sad_interl = sad_pkg(reg, 0);
+		sad_interl = sad_pkg(pvt->info.interleave_pkg, reg, 0);
 		for (j = 0; j < 8; j++) {
-			if (j > 0 && sad_interl == sad_pkg(reg, j))
+			u32 pkg = sad_pkg(pvt->info.interleave_pkg, reg, j);
+			if (j > 0 && sad_interl == pkg)
 				break;
 
 			edac_dbg(0, "SAD#%d, interleave #%d: %d\n",
-				 n_sads, j, sad_pkg(reg, j));
+				 n_sads, j, pkg);
 		}
 	}
 
@@ -874,11 +866,12 @@ static int get_memory_error_data(struct mem_ctl_info *mci,
 
 	pci_read_config_dword(pvt->pci_sad0, pvt->info.interleave_list[n_sads],
 			      &reg);
-	sad_interl = sad_pkg(reg, 0);
+	sad_interl = sad_pkg(pvt->info.interleave_pkg, reg, 0);
 	for (sad_way = 0; sad_way < 8; sad_way++) {
-		if (sad_way > 0 && sad_interl == sad_pkg(reg, sad_way))
+		u32 pkg = sad_pkg(pvt->info.interleave_pkg, reg, sad_way);
+		if (sad_way > 0 && sad_interl == pkg)
 			break;
-		sad_interleave[sad_way] = sad_pkg(reg, sad_way);
+		sad_interleave[sad_way] = pkg;
 		edac_dbg(0, "SAD interleave #%d: %d\n",
 			 sad_way, sad_interleave[sad_way]);
 	}
@@ -1684,6 +1677,7 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev)
 	pvt->info.max_sad = ARRAY_SIZE(sbridge_dram_rule);
 	pvt->info.interleave_list = sbridge_interleave_list;
 	pvt->info.max_interleave = ARRAY_SIZE(sbridge_interleave_list);
+	pvt->info.interleave_pkg = sbridge_interleave_pkg;
 
 	/* Set the function pointer to an actual operation function */
 	mci->edac_check = sbridge_check_error;
-- 
cgit 


From 5153a0f94cde059a64338f87698dce5c8fa3df8b Mon Sep 17 00:00:00 2001
From: Aristeu Rozanski <arozansk@redhat.com>
Date: Wed, 30 Oct 2013 13:27:03 -0300
Subject: sb_edac: enable multiple PCI id tables to be used

This is needed to allow separated PCI id tables for Sandy Bridge and Ivy
Bridge.

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/edac/sb_edac.c | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index 718f623f010f..8d53beeaa84e 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -1105,12 +1105,6 @@ static void sbridge_put_all_devices(void)
 	}
 }
 
-/*
- *	sbridge_get_all_devices	Find and perform 'get' operation on the MCH's
- *			device/functions we want to reference for this driver
- *
- *			Need to 'get' device 16 func 1 and func 2
- */
 static int sbridge_get_onedevice(struct pci_dev **prev,
 				 u8 *num_mc,
 				 const struct pci_id_table *table,
@@ -1212,11 +1206,21 @@ static int sbridge_get_onedevice(struct pci_dev **prev,
 	return 0;
 }
 
-static int sbridge_get_all_devices(u8 *num_mc)
+/*
+ * sbridge_get_all_devices - Find and perform 'get' operation on the MCH's
+ *			     device/functions we want to reference for this driver.
+ *			     Need to 'get' device 16 func 1 and func 2.
+ * @num_mc: pointer to the memory controllers count, to be incremented in case
+ * 	    of success.
+ * @table: model specific table
+ *
+ * returns 0 in case of success or error code
+ */
+static int sbridge_get_all_devices(u8 *num_mc,
+				   const struct pci_id_table *table)
 {
 	int i, rc;
 	struct pci_dev *pdev = NULL;
-	const struct pci_id_table *table = pci_dev_descr_sbridge_table;
 
 	while (table && table->descr) {
 		for (i = 0; i < table->n_devs; i++) {
@@ -1736,7 +1740,7 @@ static int sbridge_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	}
 	probed++;
 
-	rc = sbridge_get_all_devices(&num_mc);
+	rc = sbridge_get_all_devices(&num_mc, pci_dev_descr_sbridge_table);
 	if (unlikely(rc < 0))
 		goto fail0;
 	mc = 0;
-- 
cgit 


From ea779b5a097c382e1ae64010fe5e928a86b817ec Mon Sep 17 00:00:00 2001
From: Aristeu Rozanski <arozansk@redhat.com>
Date: Wed, 30 Oct 2013 13:27:04 -0300
Subject: sb_edac: rename mci_bind_devs()

This is in preparation for Ivy Bridge support

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/edac/sb_edac.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index 8d53beeaa84e..7f795119b572 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -1244,8 +1244,8 @@ static int sbridge_get_all_devices(u8 *num_mc,
 	return 0;
 }
 
-static int mci_bind_devs(struct mem_ctl_info *mci,
-			 struct sbridge_dev *sbridge_dev)
+static int sbridge_mci_bind_devs(struct mem_ctl_info *mci,
+				 struct sbridge_dev *sbridge_dev)
 {
 	struct sbridge_pvt *pvt = mci->pvt_info;
 	struct pci_dev *pdev;
@@ -1687,7 +1687,7 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev)
 	mci->edac_check = sbridge_check_error;
 
 	/* Store pci devices at mci for faster access */
-	rc = mci_bind_devs(mci, sbridge_dev);
+	rc = sbridge_mci_bind_devs(mci, sbridge_dev);
 	if (unlikely(rc < 0))
 		goto fail0;
 
-- 
cgit 


From be3036d220c9f9350c9da92e9b4e66855cf90889 Mon Sep 17 00:00:00 2001
From: Aristeu Rozanski <arozansk@redhat.com>
Date: Wed, 30 Oct 2013 13:27:05 -0300
Subject: sb_edac: avoid decoding the same error multiple times

Whenever the extended error reporting is active, multiple MCEs will be
generated for the same event, which will lead to multiple repeated
errors to be reported. So check ADDRV and only decode the error if the
MCE address is valid.

Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/edac/sb_edac.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index 7f795119b572..90a62ffda626 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -1427,6 +1427,10 @@ static void sbridge_mce_output_error(struct mem_ctl_info *mci,
 		}
 	}
 
+	/* Only decode errors with an valid address (ADDRV) */
+	if (!GET_BITFIELD(m->status, 58, 58))
+		return;
+
 	rc = get_memory_error_data(mci, m->addr, &socket,
 				   &channel_mask, &rank, &area_type, msg);
 	if (rc < 0)
-- 
cgit 


From 27a778b512e002d856952b4f01842ba4d34bc3d1 Mon Sep 17 00:00:00 2001
From: Pekka Enberg <penberg@kernel.org>
Date: Wed, 13 Nov 2013 14:21:48 +0200
Subject: perf trace: Tweak summary output

Tweak the summary output as suggested by Ingo Molnar:

  [penberg@localhost ~]$ perf trace -a --duration 10000 --summary -- sleep 1
  ^C
   Summary of events:

   Xorg (817), 148 events, 0.0%, 0.000 msec

     syscall            calls      min       avg       max      stddev
                                 (msec)    (msec)    (msec)        (%)
     --------------- -------- --------- --------- ---------     ------
     read                   7     0.002     0.004     0.011     32.00%
     rt_sigprocmask        40     0.001     0.001     0.002      1.31%
     ioctl                  6     0.002     0.003     0.005     19.45%
     writev                 7     0.004     0.018     0.059     43.76%
     select                 9     0.000    74.513   507.869     74.61%
     setitimer              4     0.001     0.002     0.002     10.08%

Suggested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Link: http://lkml.kernel.org/r/1384345308-24404-1-git-send-email-penberg@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-trace.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 6b230af940e2..8be17fc462ba 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -2112,9 +2112,9 @@ static size_t thread__dump_stats(struct thread_trace *ttrace,
 
 	printed += fprintf(fp, "\n");
 
-	printed += fprintf(fp, "                                                    msec/call\n");
-	printed += fprintf(fp, "   syscall            calls      min      avg      max stddev\n");
-	printed += fprintf(fp, "   --------------- -------- -------- -------- -------- ------\n");
+	printed += fprintf(fp, "   syscall            calls      min       avg       max      stddev\n");
+	printed += fprintf(fp, "                               (msec)    (msec)    (msec)        (%%)\n");
+	printed += fprintf(fp, "   --------------- -------- --------- --------- ---------     ------\n");
 
 	/* each int_node is a syscall */
 	while (inode) {
@@ -2131,9 +2131,9 @@ static size_t thread__dump_stats(struct thread_trace *ttrace,
 
 			sc = &trace->syscalls.table[inode->i];
 			printed += fprintf(fp, "   %-15s", sc->name);
-			printed += fprintf(fp, " %8" PRIu64 " %8.3f %8.3f",
+			printed += fprintf(fp, " %8" PRIu64 " %9.3f %9.3f",
 					   n, min, avg);
-			printed += fprintf(fp, " %8.3f %6.2f\n", max, pct);
+			printed += fprintf(fp, " %9.3f %9.2f%%\n", max, pct);
 		}
 
 		inode = intlist__next(inode);
-- 
cgit 


From b222213936ef7d48908be2fab7639dd535c88045 Mon Sep 17 00:00:00 2001
From: Davidlohr Bueso <davidlohr@hp.com>
Date: Tue, 12 Nov 2013 22:24:24 -0800
Subject: perf tools: Remove trivial extra semincolon

Accidentally ran into these, get rid of them.

Signed-off-by: Davidlohr Bueso <davidlohr@hp.com>
Link: http://lkml.kernel.org/r/1384323864.2527.8.camel@buesod1.americas.hpqcorp.net
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/ui/browser.c  | 2 +-
 tools/perf/util/evlist.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c
index bbc782e364b0..3648d4ec041f 100644
--- a/tools/perf/ui/browser.c
+++ b/tools/perf/ui/browser.c
@@ -680,7 +680,7 @@ static void __ui_browser__line_arrow_down(struct ui_browser *browser,
 	if (end >= browser->top_idx + browser->height)
 		end_row = browser->height - 1;
 	else
-		end_row = end - browser->top_idx;;
+		end_row = end - browser->top_idx;
 
 	ui_browser__gotorc(browser, row, column);
 	SLsmg_draw_vline(end_row - row + 1);
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index dc6fa3fbb180..5ce2ace2d6c1 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -1148,7 +1148,7 @@ size_t perf_evlist__fprintf(struct perf_evlist *evlist, FILE *fp)
 				   perf_evsel__name(evsel));
 	}
 
-	return printed + fprintf(fp, "\n");;
+	return printed + fprintf(fp, "\n");
 }
 
 int perf_evlist__strerror_tp(struct perf_evlist *evlist __maybe_unused,
-- 
cgit 


From ea432a8bb940e6bea2aaeca3c0ff3d931ad81f2e Mon Sep 17 00:00:00 2001
From: Ingo Molnar <mingo@kernel.org>
Date: Wed, 13 Nov 2013 00:26:09 +0100
Subject: perf top: Add missing newline if the 'uid' is invalid

Add missing newline if the 'uid' is invalid:

  hubble:~> perf top --stdio -u help
  Error:
  Invalid User: helphubble:~>

Fixed by this patch:

  comet:~/tip/tools/perf> perf top --stdio -u help
  Error:
  Invalid User: help
  comet:~/tip/tools/perf>

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20131112232609.GA31474@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-top.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index b8f8e29db332..71e6402729a8 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1172,7 +1172,7 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
 	status = target__validate(target);
 	if (status) {
 		target__strerror(target, status, errbuf, BUFSIZ);
-		ui__warning("%s", errbuf);
+		ui__warning("%s\n", errbuf);
 	}
 
 	status = target__parse_uid(target);
@@ -1180,7 +1180,7 @@ int cmd_top(int argc, const char **argv, const char *prefix __maybe_unused)
 		int saved_errno = errno;
 
 		target__strerror(target, status, errbuf, BUFSIZ);
-		ui__error("%s", errbuf);
+		ui__error("%s\n", errbuf);
 
 		status = -saved_errno;
 		goto out_delete_evlist;
-- 
cgit 


From 9d4ecc8893832337daf241236841db966fa53489 Mon Sep 17 00:00:00 2001
From: Don Zickus <dzickus@redhat.com>
Date: Wed, 13 Nov 2013 15:32:06 -0300
Subject: perf tools: Synthesize anon MMAP records again

When introducing the PERF_RECORD_MMAP2 in:

5c5e854bc760 perf tools: Add attr->mmap2 support

A check for the number of entries parsed by sscanf was introduced that
assumed all of the 8 fields needed to be correctly parsed so that
particular /proc/pid/maps line would be considered synthesizable.

That broke anon records synthesizing, as it doesn't have the 'execname'
field.

Fix it by keeping the sscanf return check, changing it to not require
that the 'execname' variable be parsed, so that the preexisting logic
can kick in and set it to '//anon'.

This should get things like JIT profiling working again.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Cc: Bill Gray <bgray@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Cc: Richard Fowles <rfowles@redhat.com>
Cc: Stephane Eranian <eranian@google.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/n/tip-bo4akalno7579shpz29u867j@git.kernel.org
[ commit log message is mine, dzickus reported the problem with a patch ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/event.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 6e3a846aed0e..bb788c109fe6 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -209,8 +209,10 @@ static int perf_event__synthesize_mmap_events(struct perf_tool *tool,
 		       &event->mmap.start, &event->mmap.len, prot,
 		       &event->mmap.pgoff,
 		       execname);
-
-		if (n != 5)
+		/*
+ 		 * Anon maps don't have the execname.
+ 		 */
+		if (n < 4)
 			continue;
 		/*
 		 * Just like the kernel, see __perf_event_mmap in kernel/perf_event.c
-- 
cgit 


From 9a354cdc2f40344a177d369fb4987a8270dd94df Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Wed, 13 Nov 2013 15:54:30 -0300
Subject: perf tools: Use perf_evlist__{first,last}, perf_evsel__next

In a few remaining places where the equivalent open coded variant was
still being used.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-4vjnloi5fisilykwxalb5nel@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/tests/parse-events.c | 3 +--
 tools/perf/ui/browsers/hists.c  | 9 ++++-----
 2 files changed, 5 insertions(+), 7 deletions(-)

diff --git a/tools/perf/tests/parse-events.c b/tools/perf/tests/parse-events.c
index ef671cd41bb3..3cbd10496087 100644
--- a/tools/perf/tests/parse-events.c
+++ b/tools/perf/tests/parse-events.c
@@ -441,9 +441,8 @@ static int test__checkevent_pmu_name(struct perf_evlist *evlist)
 
 static int test__checkevent_pmu_events(struct perf_evlist *evlist)
 {
-	struct perf_evsel *evsel;
+	struct perf_evsel *evsel = perf_evlist__first(evlist);
 
-	evsel = list_entry(evlist->entries.next, struct perf_evsel, node);
 	TEST_ASSERT_VAL("wrong number of entries", 1 == evlist->nr_entries);
 	TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->attr.type);
 	TEST_ASSERT_VAL("wrong exclude_user",
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 16848bb4c418..089fd3713783 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1847,13 +1847,13 @@ browse_hists:
 			switch (key) {
 			case K_TAB:
 				if (pos->node.next == &evlist->entries)
-					pos = list_entry(evlist->entries.next, struct perf_evsel, node);
+					pos = perf_evlist__first(evlist);
 				else
-					pos = list_entry(pos->node.next, struct perf_evsel, node);
+					pos = perf_evsel__next(pos);
 				goto browse_hists;
 			case K_UNTAB:
 				if (pos->node.prev == &evlist->entries)
-					pos = list_entry(evlist->entries.prev, struct perf_evsel, node);
+					pos = perf_evlist__last(evlist);
 				else
 					pos = list_entry(pos->node.prev, struct perf_evsel, node);
 				goto browse_hists;
@@ -1943,8 +1943,7 @@ int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
 
 single_entry:
 	if (nr_entries == 1) {
-		struct perf_evsel *first = list_entry(evlist->entries.next,
-						      struct perf_evsel, node);
+		struct perf_evsel *first = perf_evlist__first(evlist);
 		const char *ev_name = perf_evsel__name(first);
 
 		return perf_evsel__hists_browse(first, nr_entries, help,
-- 
cgit 


From d87fcb4a2d990ba2de9284ede84a816c5066d54b Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Wed, 13 Nov 2013 15:56:40 -0300
Subject: perf evsel: Introduce perf_evsel__prev() method

Just one use so far, on the hists browser, for completeness since there
we use perf_evlist__{first,last} and perf_evsel__next() for handling the
TAB and UNTAB keys.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-d09l4lejp5427enuf3igpckw@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/ui/browsers/hists.c | 2 +-
 tools/perf/util/evsel.h        | 5 +++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 089fd3713783..a440e03cd8c2 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1855,7 +1855,7 @@ browse_hists:
 				if (pos->node.prev == &evlist->entries)
 					pos = perf_evlist__last(evlist);
 				else
-					pos = list_entry(pos->node.prev, struct perf_evsel, node);
+					pos = perf_evsel__prev(pos);
 				goto browse_hists;
 			case K_ESC:
 				if (!ui_browser__dialog_yesno(&menu->b,
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index f5029653dcd7..1ea7c92e6e33 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -279,6 +279,11 @@ static inline struct perf_evsel *perf_evsel__next(struct perf_evsel *evsel)
 	return list_entry(evsel->node.next, struct perf_evsel, node);
 }
 
+static inline struct perf_evsel *perf_evsel__prev(struct perf_evsel *evsel)
+{
+	return list_entry(evsel->node.prev, struct perf_evsel, node);
+}
+
 /**
  * perf_evsel__is_group_leader - Return whether given evsel is a leader event
  *
-- 
cgit 


From 37676af15c8d5a9689c9d1220d2a27d510cbe238 Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Wed, 13 Nov 2013 17:40:36 -0300
Subject: perf symbols: Limit max callchain using max_stack on DWARF unwinding
 too

It was affecting only frame-pointer (fp) based callchain processing.

Usage example:

  perf top --call-graph dwarf,1024 --max-stack 2

Works for any tool that does callchain resolving and provides a
--max-stack option.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Waiman Long <Waiman.Long@hp.com>
Link: http://lkml.kernel.org/n/tip-eu45v8s3tq9ruay8tpfyon79@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/machine.c | 2 +-
 tools/perf/util/unwind.c  | 9 +++++----
 tools/perf/util/unwind.h  | 5 +++--
 3 files changed, 9 insertions(+), 7 deletions(-)

diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 0393912d8033..84cdb072ac83 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -1368,7 +1368,7 @@ int machine__resolve_callchain(struct machine *machine,
 
 	return unwind__get_entries(unwind_entry, &callchain_cursor, machine,
 				   thread, evsel->attr.sample_regs_user,
-				   sample);
+				   sample, max_stack);
 
 }
 
diff --git a/tools/perf/util/unwind.c b/tools/perf/util/unwind.c
index 5390d0b8862a..0efd5393de85 100644
--- a/tools/perf/util/unwind.c
+++ b/tools/perf/util/unwind.c
@@ -559,7 +559,7 @@ static unw_accessors_t accessors = {
 };
 
 static int get_entries(struct unwind_info *ui, unwind_entry_cb_t cb,
-		       void *arg)
+		       void *arg, int max_stack)
 {
 	unw_addr_space_t addr_space;
 	unw_cursor_t c;
@@ -575,7 +575,7 @@ static int get_entries(struct unwind_info *ui, unwind_entry_cb_t cb,
 	if (ret)
 		display_error(ret);
 
-	while (!ret && (unw_step(&c) > 0)) {
+	while (!ret && (unw_step(&c) > 0) && max_stack--) {
 		unw_word_t ip;
 
 		unw_get_reg(&c, UNW_REG_IP, &ip);
@@ -588,7 +588,8 @@ static int get_entries(struct unwind_info *ui, unwind_entry_cb_t cb,
 
 int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
 			struct machine *machine, struct thread *thread,
-			u64 sample_uregs, struct perf_sample *data)
+			u64 sample_uregs, struct perf_sample *data,
+			int max_stack)
 {
 	unw_word_t ip;
 	struct unwind_info ui = {
@@ -610,5 +611,5 @@ int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
 	if (ret)
 		return -ENOMEM;
 
-	return get_entries(&ui, cb, arg);
+	return get_entries(&ui, cb, arg, max_stack);
 }
diff --git a/tools/perf/util/unwind.h b/tools/perf/util/unwind.h
index ec0c71a2ca2e..d5966f49e22c 100644
--- a/tools/perf/util/unwind.h
+++ b/tools/perf/util/unwind.h
@@ -18,7 +18,7 @@ int unwind__get_entries(unwind_entry_cb_t cb, void *arg,
 			struct machine *machine,
 			struct thread *thread,
 			u64 sample_uregs,
-			struct perf_sample *data);
+			struct perf_sample *data, int max_stack);
 int unwind__arch_reg_id(int regnum);
 #else
 static inline int
@@ -27,7 +27,8 @@ unwind__get_entries(unwind_entry_cb_t cb __maybe_unused,
 		    struct machine *machine __maybe_unused,
 		    struct thread *thread __maybe_unused,
 		    u64 sample_uregs __maybe_unused,
-		    struct perf_sample *data __maybe_unused)
+		    struct perf_sample *data __maybe_unused,
+		    int max_stack __maybe_unused)
 {
 	return 0;
 }
-- 
cgit 


From 48d038fcd09fa231e254965c3b69f8f640c9e62d Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Thu, 14 Nov 2013 15:30:41 -0300
Subject: perf ui browser: Fix segfault caused by off by one handling END key

$ perf record ls
$ perf report

Press 'down enter end'

Result:

Program received signal SIGSEGV, Segmentation fault.

The UI browser, used on a argv array would access past the end of the
array on SEEK_END because it wasn't using 'nr_entries - 1', fix it.

Reported-by: v.karpov@samsung.com
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=59291
Link: http://lkml.kernel.org/n/tip-3g83ipasqi219ktv764xzzjs@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/ui/browser.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c
index 3648d4ec041f..cbaa7af45513 100644
--- a/tools/perf/ui/browser.c
+++ b/tools/perf/ui/browser.c
@@ -569,7 +569,7 @@ void ui_browser__argv_seek(struct ui_browser *browser, off_t offset, int whence)
 		browser->top = browser->top + browser->top_idx + offset;
 		break;
 	case SEEK_END:
-		browser->top = browser->top + browser->nr_entries + offset;
+		browser->top = browser->top + browser->nr_entries - 1 + offset;
 		break;
 	default:
 		return;
-- 
cgit 


From 8971646294bda65f8666b60cb2cb3d5e172c99bf Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Fri, 18 Oct 2013 19:35:25 +0200
Subject: async_memcpy: convert to dmaengine_unmap_data

Use the generic unmap object to unmap dma buffers.

Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Reported-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
[bzolnier: add missing unmap->len initialization]
[bzolnier: fix whitespace damage]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
[djbw: add DMA_ENGINE=n support]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 crypto/async_tx/async_memcpy.c | 40 +++++++++++++++++++++++-----------------
 drivers/dma/dmaengine.c        |  3 ++-
 include/linux/dmaengine.h      | 17 +++++++++++++++++
 3 files changed, 42 insertions(+), 18 deletions(-)

diff --git a/crypto/async_tx/async_memcpy.c b/crypto/async_tx/async_memcpy.c
index 9e62feffb374..72750214f779 100644
--- a/crypto/async_tx/async_memcpy.c
+++ b/crypto/async_tx/async_memcpy.c
@@ -50,33 +50,37 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset,
 						      &dest, 1, &src, 1, len);
 	struct dma_device *device = chan ? chan->device : NULL;
 	struct dma_async_tx_descriptor *tx = NULL;
+	struct dmaengine_unmap_data *unmap = NULL;
 
-	if (device && is_dma_copy_aligned(device, src_offset, dest_offset, len)) {
-		dma_addr_t dma_dest, dma_src;
-		unsigned long dma_prep_flags = 0;
+	if (device)
+		unmap = dmaengine_get_unmap_data(device->dev, 2, GFP_NOIO);
+
+	if (unmap && is_dma_copy_aligned(device, src_offset, dest_offset, len)) {
+		unsigned long dma_prep_flags = DMA_COMPL_SKIP_SRC_UNMAP |
+					       DMA_COMPL_SKIP_DEST_UNMAP;
 
 		if (submit->cb_fn)
 			dma_prep_flags |= DMA_PREP_INTERRUPT;
 		if (submit->flags & ASYNC_TX_FENCE)
 			dma_prep_flags |= DMA_PREP_FENCE;
-		dma_dest = dma_map_page(device->dev, dest, dest_offset, len,
-					DMA_FROM_DEVICE);
-
-		dma_src = dma_map_page(device->dev, src, src_offset, len,
-				       DMA_TO_DEVICE);
-
-		tx = device->device_prep_dma_memcpy(chan, dma_dest, dma_src,
-						    len, dma_prep_flags);
-		if (!tx) {
-			dma_unmap_page(device->dev, dma_dest, len,
-				       DMA_FROM_DEVICE);
-			dma_unmap_page(device->dev, dma_src, len,
-				       DMA_TO_DEVICE);
-		}
+
+		unmap->to_cnt = 1;
+		unmap->addr[0] = dma_map_page(device->dev, src, src_offset, len,
+					      DMA_TO_DEVICE);
+		unmap->from_cnt = 1;
+		unmap->addr[1] = dma_map_page(device->dev, dest, dest_offset, len,
+					      DMA_FROM_DEVICE);
+		unmap->len = len;
+
+		tx = device->device_prep_dma_memcpy(chan, unmap->addr[1],
+						    unmap->addr[0], len,
+						    dma_prep_flags);
 	}
 
 	if (tx) {
 		pr_debug("%s: (async) len: %zu\n", __func__, len);
+
+		dma_set_unmap(tx, unmap);
 		async_tx_submit(chan, tx, submit);
 	} else {
 		void *dest_buf, *src_buf;
@@ -96,6 +100,8 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset,
 		async_tx_sync_epilog(submit);
 	}
 
+	dmaengine_unmap_put(unmap);
+
 	return tx;
 }
 EXPORT_SYMBOL_GPL(async_memcpy);
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index e721a1caff7f..54138b57b37c 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -1009,7 +1009,7 @@ static int __init dmaengine_init_unmap_pool(void)
 	return -ENOMEM;
 }
 
-static struct dmaengine_unmap_data *
+struct dmaengine_unmap_data *
 dmaengine_get_unmap_data(struct device *dev, int nr, gfp_t flags)
 {
 	struct dmaengine_unmap_data *unmap;
@@ -1024,6 +1024,7 @@ dmaengine_get_unmap_data(struct device *dev, int nr, gfp_t flags)
 
 	return unmap;
 }
+EXPORT_SYMBOL(dmaengine_get_unmap_data);
 
 /**
  * dma_async_memcpy_pg_to_pg - offloaded copy from page to page
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 2fe855a7cab1..3782cdb782a8 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -457,6 +457,7 @@ struct dma_async_tx_descriptor {
 #endif
 };
 
+#ifdef CONFIG_DMA_ENGINE
 static inline void dma_set_unmap(struct dma_async_tx_descriptor *tx,
 				 struct dmaengine_unmap_data *unmap)
 {
@@ -464,7 +465,23 @@ static inline void dma_set_unmap(struct dma_async_tx_descriptor *tx,
 	tx->unmap = unmap;
 }
 
+struct dmaengine_unmap_data *
+dmaengine_get_unmap_data(struct device *dev, int nr, gfp_t flags);
 void dmaengine_unmap_put(struct dmaengine_unmap_data *unmap);
+#else
+static inline void dma_set_unmap(struct dma_async_tx_descriptor *tx,
+				 struct dmaengine_unmap_data *unmap)
+{
+}
+static inline struct dmaengine_unmap_data *
+dmaengine_get_unmap_data(struct device *dev, int nr, gfp_t flags)
+{
+	return NULL;
+}
+static inline void dmaengine_unmap_put(struct dmaengine_unmap_data *unmap)
+{
+}
+#endif
 
 static inline void dma_descriptor_unmap(struct dma_async_tx_descriptor *tx)
 {
-- 
cgit 


From fb36ab142b2f1dc8c8ad3750413efa7a5cc1c07b Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Fri, 18 Oct 2013 19:35:26 +0200
Subject: async_xor: convert to dmaengine_unmap_data

Use the generic unmap object to unmap dma buffers.

Later we can push this unmap object up to the raid layer and get rid of
the 'scribble' parameter.

Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Reported-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
[bzolnier: minor cleanups]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 crypto/async_tx/async_xor.c | 95 ++++++++++++++++++++++++---------------------
 1 file changed, 51 insertions(+), 44 deletions(-)

diff --git a/crypto/async_tx/async_xor.c b/crypto/async_tx/async_xor.c
index 8ade0a0481c6..f092fa14a745 100644
--- a/crypto/async_tx/async_xor.c
+++ b/crypto/async_tx/async_xor.c
@@ -33,48 +33,32 @@
 
 /* do_async_xor - dma map the pages and perform the xor with an engine */
 static __async_inline struct dma_async_tx_descriptor *
-do_async_xor(struct dma_chan *chan, struct page *dest, struct page **src_list,
-	     unsigned int offset, int src_cnt, size_t len, dma_addr_t *dma_src,
+do_async_xor(struct dma_chan *chan, struct dmaengine_unmap_data *unmap,
 	     struct async_submit_ctl *submit)
 {
 	struct dma_device *dma = chan->device;
 	struct dma_async_tx_descriptor *tx = NULL;
-	int src_off = 0;
-	int i;
 	dma_async_tx_callback cb_fn_orig = submit->cb_fn;
 	void *cb_param_orig = submit->cb_param;
 	enum async_tx_flags flags_orig = submit->flags;
 	enum dma_ctrl_flags dma_flags;
-	int xor_src_cnt = 0;
-	dma_addr_t dma_dest;
-
-	/* map the dest bidrectional in case it is re-used as a source */
-	dma_dest = dma_map_page(dma->dev, dest, offset, len, DMA_BIDIRECTIONAL);
-	for (i = 0; i < src_cnt; i++) {
-		/* only map the dest once */
-		if (!src_list[i])
-			continue;
-		if (unlikely(src_list[i] == dest)) {
-			dma_src[xor_src_cnt++] = dma_dest;
-			continue;
-		}
-		dma_src[xor_src_cnt++] = dma_map_page(dma->dev, src_list[i], offset,
-						      len, DMA_TO_DEVICE);
-	}
-	src_cnt = xor_src_cnt;
+	int src_cnt = unmap->to_cnt;
+	int xor_src_cnt;
+	dma_addr_t dma_dest = unmap->addr[unmap->to_cnt];
+	dma_addr_t *src_list = unmap->addr;
 
 	while (src_cnt) {
+		dma_addr_t tmp;
+
 		submit->flags = flags_orig;
-		dma_flags = 0;
 		xor_src_cnt = min(src_cnt, (int)dma->max_xor);
-		/* if we are submitting additional xors, leave the chain open,
-		 * clear the callback parameters, and leave the destination
-		 * buffer mapped
+		/* if we are submitting additional xors, leave the chain open
+		 * and clear the callback parameters
 		 */
+		dma_flags = DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP;
 		if (src_cnt > xor_src_cnt) {
 			submit->flags &= ~ASYNC_TX_ACK;
 			submit->flags |= ASYNC_TX_FENCE;
-			dma_flags = DMA_COMPL_SKIP_DEST_UNMAP;
 			submit->cb_fn = NULL;
 			submit->cb_param = NULL;
 		} else {
@@ -85,12 +69,18 @@ do_async_xor(struct dma_chan *chan, struct page *dest, struct page **src_list,
 			dma_flags |= DMA_PREP_INTERRUPT;
 		if (submit->flags & ASYNC_TX_FENCE)
 			dma_flags |= DMA_PREP_FENCE;
-		/* Since we have clobbered the src_list we are committed
-		 * to doing this asynchronously.  Drivers force forward progress
-		 * in case they can not provide a descriptor
+
+		/* Drivers force forward progress in case they can not provide a
+		 * descriptor
 		 */
-		tx = dma->device_prep_dma_xor(chan, dma_dest, &dma_src[src_off],
-					      xor_src_cnt, len, dma_flags);
+		tmp = src_list[0];
+		if (src_list > unmap->addr)
+			src_list[0] = dma_dest;
+		tx = dma->device_prep_dma_xor(chan, dma_dest, src_list,
+					      xor_src_cnt, unmap->len,
+					      dma_flags);
+		src_list[0] = tmp;
+
 
 		if (unlikely(!tx))
 			async_tx_quiesce(&submit->depend_tx);
@@ -99,22 +89,21 @@ do_async_xor(struct dma_chan *chan, struct page *dest, struct page **src_list,
 		while (unlikely(!tx)) {
 			dma_async_issue_pending(chan);
 			tx = dma->device_prep_dma_xor(chan, dma_dest,
-						      &dma_src[src_off],
-						      xor_src_cnt, len,
+						      src_list,
+						      xor_src_cnt, unmap->len,
 						      dma_flags);
 		}
 
+		dma_set_unmap(tx, unmap);
 		async_tx_submit(chan, tx, submit);
 		submit->depend_tx = tx;
 
 		if (src_cnt > xor_src_cnt) {
 			/* drop completed sources */
 			src_cnt -= xor_src_cnt;
-			src_off += xor_src_cnt;
-
 			/* use the intermediate result a source */
-			dma_src[--src_off] = dma_dest;
 			src_cnt++;
+			src_list += xor_src_cnt - 1;
 		} else
 			break;
 	}
@@ -189,22 +178,40 @@ async_xor(struct page *dest, struct page **src_list, unsigned int offset,
 	struct dma_chan *chan = async_tx_find_channel(submit, DMA_XOR,
 						      &dest, 1, src_list,
 						      src_cnt, len);
-	dma_addr_t *dma_src = NULL;
+	struct dma_device *device = chan ? chan->device : NULL;
+	struct dmaengine_unmap_data *unmap = NULL;
 
 	BUG_ON(src_cnt <= 1);
 
-	if (submit->scribble)
-		dma_src = submit->scribble;
-	else if (sizeof(dma_addr_t) <= sizeof(struct page *))
-		dma_src = (dma_addr_t *) src_list;
+	if (device)
+		unmap = dmaengine_get_unmap_data(device->dev, src_cnt+1, GFP_NOIO);
+
+	if (unmap && is_dma_xor_aligned(device, offset, 0, len)) {
+		struct dma_async_tx_descriptor *tx;
+		int i, j;
 
-	if (dma_src && chan && is_dma_xor_aligned(chan->device, offset, 0, len)) {
 		/* run the xor asynchronously */
 		pr_debug("%s (async): len: %zu\n", __func__, len);
 
-		return do_async_xor(chan, dest, src_list, offset, src_cnt, len,
-				    dma_src, submit);
+		unmap->len = len;
+		for (i = 0, j = 0; i < src_cnt; i++) {
+			if (!src_list[i])
+				continue;
+			unmap->to_cnt++;
+			unmap->addr[j++] = dma_map_page(device->dev, src_list[i],
+							offset, len, DMA_TO_DEVICE);
+		}
+
+		/* map it bidirectional as it may be re-used as a source */
+		unmap->addr[j] = dma_map_page(device->dev, dest, offset, len,
+					      DMA_BIDIRECTIONAL);
+		unmap->bidi_cnt = 1;
+
+		tx = do_async_xor(chan, unmap, submit);
+		dmaengine_unmap_put(unmap);
+		return tx;
 	} else {
+		dmaengine_unmap_put(unmap);
 		/* run the xor synchronously */
 		pr_debug("%s (sync): len: %zu\n", __func__, len);
 		WARN_ONCE(chan, "%s: no space for dma address conversion\n",
-- 
cgit 


From 173e86b2809234cb5f2a50e9a8c159b70e23da1c Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Fri, 18 Oct 2013 19:35:27 +0200
Subject: async_xor_val: convert to dmaengine_unmap_data

Use the generic unmap object to unmap dma buffers.

Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Reported-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
[bzolnier: minor cleanups]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 crypto/async_tx/async_xor.c | 30 +++++++++++++++++-------------
 1 file changed, 17 insertions(+), 13 deletions(-)

diff --git a/crypto/async_tx/async_xor.c b/crypto/async_tx/async_xor.c
index f092fa14a745..d2cc77d501c7 100644
--- a/crypto/async_tx/async_xor.c
+++ b/crypto/async_tx/async_xor.c
@@ -275,18 +275,17 @@ async_xor_val(struct page *dest, struct page **src_list, unsigned int offset,
 	struct dma_chan *chan = xor_val_chan(submit, dest, src_list, src_cnt, len);
 	struct dma_device *device = chan ? chan->device : NULL;
 	struct dma_async_tx_descriptor *tx = NULL;
-	dma_addr_t *dma_src = NULL;
+	struct dmaengine_unmap_data *unmap = NULL;
 
 	BUG_ON(src_cnt <= 1);
 
-	if (submit->scribble)
-		dma_src = submit->scribble;
-	else if (sizeof(dma_addr_t) <= sizeof(struct page *))
-		dma_src = (dma_addr_t *) src_list;
+	if (device)
+		unmap = dmaengine_get_unmap_data(device->dev, src_cnt, GFP_NOIO);
 
-	if (dma_src && device && src_cnt <= device->max_xor &&
+	if (unmap && src_cnt <= device->max_xor &&
 	    is_dma_xor_aligned(device, offset, 0, len)) {
-		unsigned long dma_prep_flags = 0;
+		unsigned long dma_prep_flags = DMA_COMPL_SKIP_SRC_UNMAP |
+					       DMA_COMPL_SKIP_DEST_UNMAP;
 		int i;
 
 		pr_debug("%s: (async) len: %zu\n", __func__, len);
@@ -295,11 +294,15 @@ async_xor_val(struct page *dest, struct page **src_list, unsigned int offset,
 			dma_prep_flags |= DMA_PREP_INTERRUPT;
 		if (submit->flags & ASYNC_TX_FENCE)
 			dma_prep_flags |= DMA_PREP_FENCE;
-		for (i = 0; i < src_cnt; i++)
-			dma_src[i] = dma_map_page(device->dev, src_list[i],
-						  offset, len, DMA_TO_DEVICE);
 
-		tx = device->device_prep_dma_xor_val(chan, dma_src, src_cnt,
+		for (i = 0; i < src_cnt; i++) {
+			unmap->addr[i] = dma_map_page(device->dev, src_list[i],
+						      offset, len, DMA_TO_DEVICE);
+			unmap->to_cnt++;
+		}
+		unmap->len = len;
+
+		tx = device->device_prep_dma_xor_val(chan, unmap->addr, src_cnt,
 						     len, result,
 						     dma_prep_flags);
 		if (unlikely(!tx)) {
@@ -308,11 +311,11 @@ async_xor_val(struct page *dest, struct page **src_list, unsigned int offset,
 			while (!tx) {
 				dma_async_issue_pending(chan);
 				tx = device->device_prep_dma_xor_val(chan,
-					dma_src, src_cnt, len, result,
+					unmap->addr, src_cnt, len, result,
 					dma_prep_flags);
 			}
 		}
-
+		dma_set_unmap(tx, unmap);
 		async_tx_submit(chan, tx, submit);
 	} else {
 		enum async_tx_flags flags_orig = submit->flags;
@@ -334,6 +337,7 @@ async_xor_val(struct page *dest, struct page **src_list, unsigned int offset,
 		async_tx_sync_epilog(submit);
 		submit->flags = flags_orig;
 	}
+	dmaengine_unmap_put(unmap);
 
 	return tx;
 }
-- 
cgit 


From 3bbdd49872931b8c4282aeb1cab5af7cce2cfb0d Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Fri, 18 Oct 2013 19:35:28 +0200
Subject: async_raid6_recov: convert to dmaengine_unmap_data

Use the generic unmap object to unmap dma buffers.

Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Reported-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
[bzolnier: keep temporary dma_dest array in async_mult()]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 crypto/async_tx/async_raid6_recov.c | 69 ++++++++++++++++++++++++++-----------
 1 file changed, 49 insertions(+), 20 deletions(-)

diff --git a/crypto/async_tx/async_raid6_recov.c b/crypto/async_tx/async_raid6_recov.c
index a9f08a6a582e..a3a72a784421 100644
--- a/crypto/async_tx/async_raid6_recov.c
+++ b/crypto/async_tx/async_raid6_recov.c
@@ -26,6 +26,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/raid/pq.h>
 #include <linux/async_tx.h>
+#include <linux/dmaengine.h>
 
 static struct dma_async_tx_descriptor *
 async_sum_product(struct page *dest, struct page **srcs, unsigned char *coef,
@@ -34,35 +35,47 @@ async_sum_product(struct page *dest, struct page **srcs, unsigned char *coef,
 	struct dma_chan *chan = async_tx_find_channel(submit, DMA_PQ,
 						      &dest, 1, srcs, 2, len);
 	struct dma_device *dma = chan ? chan->device : NULL;
+	struct dmaengine_unmap_data *unmap = NULL;
 	const u8 *amul, *bmul;
 	u8 ax, bx;
 	u8 *a, *b, *c;
 
-	if (dma) {
-		dma_addr_t dma_dest[2];
-		dma_addr_t dma_src[2];
+	if (dma)
+		unmap = dmaengine_get_unmap_data(dma->dev, 3, GFP_NOIO);
+
+	if (unmap) {
 		struct device *dev = dma->dev;
+		dma_addr_t pq[2];
 		struct dma_async_tx_descriptor *tx;
-		enum dma_ctrl_flags dma_flags = DMA_PREP_PQ_DISABLE_P;
+		enum dma_ctrl_flags dma_flags = DMA_COMPL_SKIP_SRC_UNMAP |
+						DMA_COMPL_SKIP_DEST_UNMAP |
+						DMA_PREP_PQ_DISABLE_P;
 
 		if (submit->flags & ASYNC_TX_FENCE)
 			dma_flags |= DMA_PREP_FENCE;
-		dma_dest[1] = dma_map_page(dev, dest, 0, len, DMA_BIDIRECTIONAL);
-		dma_src[0] = dma_map_page(dev, srcs[0], 0, len, DMA_TO_DEVICE);
-		dma_src[1] = dma_map_page(dev, srcs[1], 0, len, DMA_TO_DEVICE);
-		tx = dma->device_prep_dma_pq(chan, dma_dest, dma_src, 2, coef,
+		unmap->addr[0] = dma_map_page(dev, srcs[0], 0, len, DMA_TO_DEVICE);
+		unmap->addr[1] = dma_map_page(dev, srcs[1], 0, len, DMA_TO_DEVICE);
+		unmap->to_cnt = 2;
+
+		unmap->addr[2] = dma_map_page(dev, dest, 0, len, DMA_BIDIRECTIONAL);
+		unmap->bidi_cnt = 1;
+		/* engine only looks at Q, but expects it to follow P */
+		pq[1] = unmap->addr[2];
+
+		unmap->len = len;
+		tx = dma->device_prep_dma_pq(chan, pq, unmap->addr, 2, coef,
 					     len, dma_flags);
 		if (tx) {
+			dma_set_unmap(tx, unmap);
 			async_tx_submit(chan, tx, submit);
+			dmaengine_unmap_put(unmap);
 			return tx;
 		}
 
 		/* could not get a descriptor, unmap and fall through to
 		 * the synchronous path
 		 */
-		dma_unmap_page(dev, dma_dest[1], len, DMA_BIDIRECTIONAL);
-		dma_unmap_page(dev, dma_src[0], len, DMA_TO_DEVICE);
-		dma_unmap_page(dev, dma_src[1], len, DMA_TO_DEVICE);
+		dmaengine_unmap_put(unmap);
 	}
 
 	/* run the operation synchronously */
@@ -89,23 +102,40 @@ async_mult(struct page *dest, struct page *src, u8 coef, size_t len,
 	struct dma_chan *chan = async_tx_find_channel(submit, DMA_PQ,
 						      &dest, 1, &src, 1, len);
 	struct dma_device *dma = chan ? chan->device : NULL;
+	struct dmaengine_unmap_data *unmap = NULL;
 	const u8 *qmul; /* Q multiplier table */
 	u8 *d, *s;
 
-	if (dma) {
+	if (dma)
+		unmap = dmaengine_get_unmap_data(dma->dev, 3, GFP_NOIO);
+
+	if (unmap) {
 		dma_addr_t dma_dest[2];
-		dma_addr_t dma_src[1];
 		struct device *dev = dma->dev;
 		struct dma_async_tx_descriptor *tx;
-		enum dma_ctrl_flags dma_flags = DMA_PREP_PQ_DISABLE_P;
+		enum dma_ctrl_flags dma_flags = DMA_COMPL_SKIP_SRC_UNMAP |
+						DMA_COMPL_SKIP_DEST_UNMAP |
+						DMA_PREP_PQ_DISABLE_P;
 
 		if (submit->flags & ASYNC_TX_FENCE)
 			dma_flags |= DMA_PREP_FENCE;
-		dma_dest[1] = dma_map_page(dev, dest, 0, len, DMA_BIDIRECTIONAL);
-		dma_src[0] = dma_map_page(dev, src, 0, len, DMA_TO_DEVICE);
-		tx = dma->device_prep_dma_pq(chan, dma_dest, dma_src, 1, &coef,
-					     len, dma_flags);
+		unmap->addr[0] = dma_map_page(dev, src, 0, len, DMA_TO_DEVICE);
+		unmap->to_cnt++;
+		unmap->addr[1] = dma_map_page(dev, dest, 0, len, DMA_BIDIRECTIONAL);
+		dma_dest[1] = unmap->addr[1];
+		unmap->bidi_cnt++;
+		unmap->len = len;
+
+		/* this looks funny, but the engine looks for Q at
+		 * dma_dest[1] and ignores dma_dest[0] as a dest
+		 * due to DMA_PREP_PQ_DISABLE_P
+		 */
+		tx = dma->device_prep_dma_pq(chan, dma_dest, unmap->addr,
+					     1, &coef, len, dma_flags);
+
 		if (tx) {
+			dma_set_unmap(tx, unmap);
+			dmaengine_unmap_put(unmap);
 			async_tx_submit(chan, tx, submit);
 			return tx;
 		}
@@ -113,8 +143,7 @@ async_mult(struct page *dest, struct page *src, u8 coef, size_t len,
 		/* could not get a descriptor, unmap and fall through to
 		 * the synchronous path
 		 */
-		dma_unmap_page(dev, dma_dest[1], len, DMA_BIDIRECTIONAL);
-		dma_unmap_page(dev, dma_src[0], len, DMA_TO_DEVICE);
+		dmaengine_unmap_put(unmap);
 	}
 
 	/* no channel available, or failed to allocate a descriptor, so
-- 
cgit 


From 7476bd79fc019dd9a8361de6696627a4eae3ef05 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Fri, 18 Oct 2013 19:35:29 +0200
Subject: async_pq: convert to dmaengine_unmap_data

Use the generic unmap object to unmap dma buffers.

Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Reported-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
[bzolnier: keep temporary dma_dest array in do_async_gen_syndrome()]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 crypto/async_tx/async_pq.c | 117 +++++++++++++++++++++++++--------------------
 drivers/dma/dmaengine.c    |   5 +-
 2 files changed, 69 insertions(+), 53 deletions(-)

diff --git a/crypto/async_tx/async_pq.c b/crypto/async_tx/async_pq.c
index 91d5d385899e..8cdbf33bd046 100644
--- a/crypto/async_tx/async_pq.c
+++ b/crypto/async_tx/async_pq.c
@@ -46,49 +46,25 @@ static struct page *pq_scribble_page;
  * do_async_gen_syndrome - asynchronously calculate P and/or Q
  */
 static __async_inline struct dma_async_tx_descriptor *
-do_async_gen_syndrome(struct dma_chan *chan, struct page **blocks,
-		      const unsigned char *scfs, unsigned int offset, int disks,
-		      size_t len, dma_addr_t *dma_src,
+do_async_gen_syndrome(struct dma_chan *chan,
+		      const unsigned char *scfs, int disks,
+		      struct dmaengine_unmap_data *unmap,
+		      enum dma_ctrl_flags dma_flags,
 		      struct async_submit_ctl *submit)
 {
 	struct dma_async_tx_descriptor *tx = NULL;
 	struct dma_device *dma = chan->device;
-	enum dma_ctrl_flags dma_flags = 0;
 	enum async_tx_flags flags_orig = submit->flags;
 	dma_async_tx_callback cb_fn_orig = submit->cb_fn;
 	dma_async_tx_callback cb_param_orig = submit->cb_param;
 	int src_cnt = disks - 2;
-	unsigned char coefs[src_cnt];
 	unsigned short pq_src_cnt;
 	dma_addr_t dma_dest[2];
 	int src_off = 0;
-	int idx;
-	int i;
 
-	/* DMAs use destinations as sources, so use BIDIRECTIONAL mapping */
-	if (P(blocks, disks))
-		dma_dest[0] = dma_map_page(dma->dev, P(blocks, disks), offset,
-					   len, DMA_BIDIRECTIONAL);
-	else
-		dma_flags |= DMA_PREP_PQ_DISABLE_P;
-	if (Q(blocks, disks))
-		dma_dest[1] = dma_map_page(dma->dev, Q(blocks, disks), offset,
-					   len, DMA_BIDIRECTIONAL);
-	else
-		dma_flags |= DMA_PREP_PQ_DISABLE_Q;
-
-	/* convert source addresses being careful to collapse 'empty'
-	 * sources and update the coefficients accordingly
-	 */
-	for (i = 0, idx = 0; i < src_cnt; i++) {
-		if (blocks[i] == NULL)
-			continue;
-		dma_src[idx] = dma_map_page(dma->dev, blocks[i], offset, len,
-					    DMA_TO_DEVICE);
-		coefs[idx] = scfs[i];
-		idx++;
-	}
-	src_cnt = idx;
+	dma_flags |= DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP;
+	if (submit->flags & ASYNC_TX_FENCE)
+		dma_flags |= DMA_PREP_FENCE;
 
 	while (src_cnt > 0) {
 		submit->flags = flags_orig;
@@ -100,28 +76,25 @@ do_async_gen_syndrome(struct dma_chan *chan, struct page **blocks,
 		if (src_cnt > pq_src_cnt) {
 			submit->flags &= ~ASYNC_TX_ACK;
 			submit->flags |= ASYNC_TX_FENCE;
-			dma_flags |= DMA_COMPL_SKIP_DEST_UNMAP;
 			submit->cb_fn = NULL;
 			submit->cb_param = NULL;
 		} else {
-			dma_flags &= ~DMA_COMPL_SKIP_DEST_UNMAP;
 			submit->cb_fn = cb_fn_orig;
 			submit->cb_param = cb_param_orig;
 			if (cb_fn_orig)
 				dma_flags |= DMA_PREP_INTERRUPT;
 		}
-		if (submit->flags & ASYNC_TX_FENCE)
-			dma_flags |= DMA_PREP_FENCE;
 
-		/* Since we have clobbered the src_list we are committed
-		 * to doing this asynchronously.  Drivers force forward
-		 * progress in case they can not provide a descriptor
+		/* Drivers force forward progress in case they can not provide
+		 * a descriptor
 		 */
 		for (;;) {
+			dma_dest[0] = unmap->addr[disks - 2];
+			dma_dest[1] = unmap->addr[disks - 1];
 			tx = dma->device_prep_dma_pq(chan, dma_dest,
-						     &dma_src[src_off],
+						     &unmap->addr[src_off],
 						     pq_src_cnt,
-						     &coefs[src_off], len,
+						     &scfs[src_off], unmap->len,
 						     dma_flags);
 			if (likely(tx))
 				break;
@@ -129,6 +102,7 @@ do_async_gen_syndrome(struct dma_chan *chan, struct page **blocks,
 			dma_async_issue_pending(chan);
 		}
 
+		dma_set_unmap(tx, unmap);
 		async_tx_submit(chan, tx, submit);
 		submit->depend_tx = tx;
 
@@ -188,10 +162,6 @@ do_sync_gen_syndrome(struct page **blocks, unsigned int offset, int disks,
  * set to NULL those buffers will be replaced with the raid6_zero_page
  * in the synchronous path and omitted in the hardware-asynchronous
  * path.
- *
- * 'blocks' note: if submit->scribble is NULL then the contents of
- * 'blocks' may be overwritten to perform address conversions
- * (dma_map_page() or page_address()).
  */
 struct dma_async_tx_descriptor *
 async_gen_syndrome(struct page **blocks, unsigned int offset, int disks,
@@ -202,26 +172,69 @@ async_gen_syndrome(struct page **blocks, unsigned int offset, int disks,
 						      &P(blocks, disks), 2,
 						      blocks, src_cnt, len);
 	struct dma_device *device = chan ? chan->device : NULL;
-	dma_addr_t *dma_src = NULL;
+	struct dmaengine_unmap_data *unmap = NULL;
 
 	BUG_ON(disks > 255 || !(P(blocks, disks) || Q(blocks, disks)));
 
-	if (submit->scribble)
-		dma_src = submit->scribble;
-	else if (sizeof(dma_addr_t) <= sizeof(struct page *))
-		dma_src = (dma_addr_t *) blocks;
+	if (device)
+		unmap = dmaengine_get_unmap_data(device->dev, disks, GFP_NOIO);
 
-	if (dma_src && device &&
+	if (unmap &&
 	    (src_cnt <= dma_maxpq(device, 0) ||
 	     dma_maxpq(device, DMA_PREP_CONTINUE) > 0) &&
 	    is_dma_pq_aligned(device, offset, 0, len)) {
+		struct dma_async_tx_descriptor *tx;
+		enum dma_ctrl_flags dma_flags = 0;
+		unsigned char coefs[src_cnt];
+		int i, j;
+
 		/* run the p+q asynchronously */
 		pr_debug("%s: (async) disks: %d len: %zu\n",
 			 __func__, disks, len);
-		return do_async_gen_syndrome(chan, blocks, raid6_gfexp, offset,
-					     disks, len, dma_src, submit);
+
+		/* convert source addresses being careful to collapse 'empty'
+		 * sources and update the coefficients accordingly
+		 */
+		unmap->len = len;
+		for (i = 0, j = 0; i < src_cnt; i++) {
+			if (blocks[i] == NULL)
+				continue;
+			unmap->addr[j] = dma_map_page(device->dev, blocks[i], offset,
+						      len, DMA_TO_DEVICE);
+			coefs[j] = raid6_gfexp[i];
+			unmap->to_cnt++;
+			j++;
+		}
+
+		/*
+		 * DMAs use destinations as sources,
+		 * so use BIDIRECTIONAL mapping
+		 */
+		unmap->bidi_cnt++;
+		if (P(blocks, disks))
+			unmap->addr[j++] = dma_map_page(device->dev, P(blocks, disks),
+							offset, len, DMA_BIDIRECTIONAL);
+		else {
+			unmap->addr[j++] = 0;
+			dma_flags |= DMA_PREP_PQ_DISABLE_P;
+		}
+
+		unmap->bidi_cnt++;
+		if (Q(blocks, disks))
+			unmap->addr[j++] = dma_map_page(device->dev, Q(blocks, disks),
+						       offset, len, DMA_BIDIRECTIONAL);
+		else {
+			unmap->addr[j++] = 0;
+			dma_flags |= DMA_PREP_PQ_DISABLE_Q;
+		}
+
+		tx = do_async_gen_syndrome(chan, coefs, j, unmap, dma_flags, submit);
+		dmaengine_unmap_put(unmap);
+		return tx;
 	}
 
+	dmaengine_unmap_put(unmap);
+
 	/* run the pq synchronously */
 	pr_debug("%s: (sync) disks: %d len: %zu\n", __func__, disks, len);
 
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 54138b57b37c..f878c808466e 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -953,9 +953,12 @@ static void dmaengine_unmap(struct kref *kref)
 		dma_unmap_page(dev, unmap->addr[i], unmap->len,
 			       DMA_FROM_DEVICE);
 	cnt += unmap->bidi_cnt;
-	for (; i < cnt; i++)
+	for (; i < cnt; i++) {
+		if (unmap->addr[i] == 0)
+			continue;
 		dma_unmap_page(dev, unmap->addr[i], unmap->len,
 			       DMA_BIDIRECTIONAL);
+	}
 	mempool_free(unmap, __get_unmap_pool(cnt)->pool);
 }
 
-- 
cgit 


From 1786b943dad0b2f655e69b3ad5187f7e39ef32e6 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Fri, 18 Oct 2013 19:35:30 +0200
Subject: async_pq_val: convert to dmaengine_unmap_data

Use the generic unmap object to unmap dma buffers.

Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Reported-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 crypto/async_tx/async_pq.c | 58 ++++++++++++++++++++++++++++------------------
 1 file changed, 35 insertions(+), 23 deletions(-)

diff --git a/crypto/async_tx/async_pq.c b/crypto/async_tx/async_pq.c
index 8cdbf33bd046..4126b56fbc01 100644
--- a/crypto/async_tx/async_pq.c
+++ b/crypto/async_tx/async_pq.c
@@ -290,50 +290,60 @@ async_syndrome_val(struct page **blocks, unsigned int offset, int disks,
 	struct dma_async_tx_descriptor *tx;
 	unsigned char coefs[disks-2];
 	enum dma_ctrl_flags dma_flags = submit->cb_fn ? DMA_PREP_INTERRUPT : 0;
-	dma_addr_t *dma_src = NULL;
-	int src_cnt = 0;
+	struct dmaengine_unmap_data *unmap = NULL;
 
 	BUG_ON(disks < 4);
 
-	if (submit->scribble)
-		dma_src = submit->scribble;
-	else if (sizeof(dma_addr_t) <= sizeof(struct page *))
-		dma_src = (dma_addr_t *) blocks;
+	if (device)
+		unmap = dmaengine_get_unmap_data(device->dev, disks, GFP_NOIO);
 
-	if (dma_src && device && disks <= dma_maxpq(device, 0) &&
+	if (unmap && disks <= dma_maxpq(device, 0) &&
 	    is_dma_pq_aligned(device, offset, 0, len)) {
 		struct device *dev = device->dev;
-		dma_addr_t *pq = &dma_src[disks-2];
-		int i;
+		dma_addr_t pq[2];
+		int i, j = 0, src_cnt = 0;
 
 		pr_debug("%s: (async) disks: %d len: %zu\n",
 			 __func__, disks, len);
-		if (!P(blocks, disks))
+
+		unmap->len = len;
+		for (i = 0; i < disks-2; i++)
+			if (likely(blocks[i])) {
+				unmap->addr[j] = dma_map_page(dev, blocks[i],
+							      offset, len,
+							      DMA_TO_DEVICE);
+				coefs[j] = raid6_gfexp[i];
+				unmap->to_cnt++;
+				src_cnt++;
+				j++;
+			}
+
+		if (!P(blocks, disks)) {
+			pq[0] = 0;
 			dma_flags |= DMA_PREP_PQ_DISABLE_P;
-		else
+		} else {
 			pq[0] = dma_map_page(dev, P(blocks, disks),
 					     offset, len,
 					     DMA_TO_DEVICE);
-		if (!Q(blocks, disks))
+			unmap->addr[j++] = pq[0];
+			unmap->to_cnt++;
+		}
+		if (!Q(blocks, disks)) {
+			pq[1] = 0;
 			dma_flags |= DMA_PREP_PQ_DISABLE_Q;
-		else
+		} else {
 			pq[1] = dma_map_page(dev, Q(blocks, disks),
 					     offset, len,
 					     DMA_TO_DEVICE);
+			unmap->addr[j++] = pq[1];
+			unmap->to_cnt++;
+		}
 
 		if (submit->flags & ASYNC_TX_FENCE)
 			dma_flags |= DMA_PREP_FENCE;
-		for (i = 0; i < disks-2; i++)
-			if (likely(blocks[i])) {
-				dma_src[src_cnt] = dma_map_page(dev, blocks[i],
-								offset, len,
-								DMA_TO_DEVICE);
-				coefs[src_cnt] = raid6_gfexp[i];
-				src_cnt++;
-			}
-
 		for (;;) {
-			tx = device->device_prep_dma_pq_val(chan, pq, dma_src,
+			tx = device->device_prep_dma_pq_val(chan, pq,
+							    unmap->addr,
 							    src_cnt,
 							    coefs,
 							    len, pqres,
@@ -343,6 +353,8 @@ async_syndrome_val(struct page **blocks, unsigned int offset, int disks,
 			async_tx_quiesce(&submit->depend_tx);
 			dma_async_issue_pending(chan);
 		}
+
+		dma_set_unmap(tx, unmap);
 		async_tx_submit(chan, tx, submit);
 
 		return tx;
-- 
cgit 


From 6f57fd0578dff23a4bd16118f0cb4201bcec91f1 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Fri, 18 Oct 2013 19:35:31 +0200
Subject: NTB: convert to dmaengine_unmap_data

Use the generic unmap object to unmap dma buffers.

Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Jon Mason <jon.mason@intel.com>
[djbw: fix up unmap len, and GFP flags]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/ntb/ntb_transport.c | 85 +++++++++++++++++++++++++++++++--------------
 1 file changed, 58 insertions(+), 27 deletions(-)

diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index 12a9e83c008b..222c2baa3a4b 100644
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -1034,7 +1034,7 @@ static void ntb_async_rx(struct ntb_queue_entry *entry, void *offset,
 	struct dma_chan *chan = qp->dma_chan;
 	struct dma_device *device;
 	size_t pay_off, buff_off;
-	dma_addr_t src, dest;
+	struct dmaengine_unmap_data *unmap;
 	dma_cookie_t cookie;
 	void *buf = entry->buf;
 	unsigned long flags;
@@ -1045,35 +1045,50 @@ static void ntb_async_rx(struct ntb_queue_entry *entry, void *offset,
 		goto err;
 
 	if (len < copy_bytes) 
-		goto err1;
+		goto err_wait;
 
 	device = chan->device;
 	pay_off = (size_t) offset & ~PAGE_MASK;
 	buff_off = (size_t) buf & ~PAGE_MASK;
 
 	if (!is_dma_copy_aligned(device, pay_off, buff_off, len))
-		goto err1;
+		goto err_wait;
 
-	dest = dma_map_single(device->dev, buf, len, DMA_FROM_DEVICE);
-	if (dma_mapping_error(device->dev, dest))
-		goto err1;
+	unmap = dmaengine_get_unmap_data(device->dev, 2, GFP_NOWAIT);
+	if (!unmap)
+		goto err_wait;
 
-	src = dma_map_single(device->dev, offset, len, DMA_TO_DEVICE);
-	if (dma_mapping_error(device->dev, src))
-		goto err2;
+	unmap->len = len;
+	unmap->addr[0] = dma_map_page(device->dev, virt_to_page(offset),
+				      pay_off, len, DMA_TO_DEVICE);
+	if (dma_mapping_error(device->dev, unmap->addr[0]))
+		goto err_get_unmap;
+
+	unmap->to_cnt = 1;
 
-	flags = DMA_COMPL_DEST_UNMAP_SINGLE | DMA_COMPL_SRC_UNMAP_SINGLE |
+	unmap->addr[1] = dma_map_page(device->dev, virt_to_page(buf),
+				      buff_off, len, DMA_FROM_DEVICE);
+	if (dma_mapping_error(device->dev, unmap->addr[1]))
+		goto err_get_unmap;
+
+	unmap->from_cnt = 1;
+
+	flags = DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP |
 		DMA_PREP_INTERRUPT;
-	txd = device->device_prep_dma_memcpy(chan, dest, src, len, flags);
+	txd = device->device_prep_dma_memcpy(chan, unmap->addr[1],
+					     unmap->addr[0], len, flags);
 	if (!txd)
-		goto err3;
+		goto err_get_unmap;
 
 	txd->callback = ntb_rx_copy_callback;
 	txd->callback_param = entry;
+	dma_set_unmap(txd, unmap);
 
 	cookie = dmaengine_submit(txd);
 	if (dma_submit_error(cookie))
-		goto err3;
+		goto err_set_unmap;
+
+	dmaengine_unmap_put(unmap);
 
 	qp->last_cookie = cookie;
 
@@ -1081,11 +1096,11 @@ static void ntb_async_rx(struct ntb_queue_entry *entry, void *offset,
 
 	return;
 
-err3:
-	dma_unmap_single(device->dev, src, len, DMA_TO_DEVICE);
-err2:
-	dma_unmap_single(device->dev, dest, len, DMA_FROM_DEVICE);
-err1:
+err_set_unmap:
+	dmaengine_unmap_put(unmap);
+err_get_unmap:
+	dmaengine_unmap_put(unmap);
+err_wait:
 	/* If the callbacks come out of order, the writing of the index to the
 	 * last completed will be out of order.  This may result in the
 	 * receive stalling forever.
@@ -1245,7 +1260,8 @@ static void ntb_async_tx(struct ntb_transport_qp *qp,
 	struct dma_chan *chan = qp->dma_chan;
 	struct dma_device *device;
 	size_t dest_off, buff_off;
-	dma_addr_t src, dest;
+	struct dmaengine_unmap_data *unmap;
+	dma_addr_t dest;
 	dma_cookie_t cookie;
 	void __iomem *offset;
 	size_t len = entry->len;
@@ -1273,28 +1289,43 @@ static void ntb_async_tx(struct ntb_transport_qp *qp,
 	if (!is_dma_copy_aligned(device, buff_off, dest_off, len))
 		goto err;
 
-	src = dma_map_single(device->dev, buf, len, DMA_TO_DEVICE);
-	if (dma_mapping_error(device->dev, src))
+	unmap = dmaengine_get_unmap_data(device->dev, 1, GFP_NOWAIT);
+	if (!unmap)
 		goto err;
 
-	flags = DMA_COMPL_SRC_UNMAP_SINGLE | DMA_PREP_INTERRUPT;
-	txd = device->device_prep_dma_memcpy(chan, dest, src, len, flags);
+	unmap->len = len;
+	unmap->addr[0] = dma_map_page(device->dev, virt_to_page(buf),
+				      buff_off, len, DMA_TO_DEVICE);
+	if (dma_mapping_error(device->dev, unmap->addr[0]))
+		goto err_get_unmap;
+
+	unmap->to_cnt = 1;
+
+	flags = DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP |
+		DMA_PREP_INTERRUPT;
+	txd = device->device_prep_dma_memcpy(chan, dest, unmap->addr[0], len,
+					    flags);
 	if (!txd)
-		goto err1;
+		goto err_get_unmap;
 
 	txd->callback = ntb_tx_copy_callback;
 	txd->callback_param = entry;
+	dma_set_unmap(txd, unmap);
 
 	cookie = dmaengine_submit(txd);
 	if (dma_submit_error(cookie))
-		goto err1;
+		goto err_set_unmap;
+
+	dmaengine_unmap_put(unmap);
 
 	dma_async_issue_pending(chan);
 	qp->tx_async++;
 
 	return;
-err1:
-	dma_unmap_single(device->dev, src, len, DMA_TO_DEVICE);
+err_set_unmap:
+	dmaengine_unmap_put(unmap);
+err_get_unmap:
+	dmaengine_unmap_put(unmap);
 err:
 	ntb_memcpy_tx(entry, offset);
 	qp->tx_memcpy++;
-- 
cgit 


From 54f8d501e842879143e867e70996574a54d1e130 Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Fri, 18 Oct 2013 19:35:32 +0200
Subject: dmaengine: remove DMA unmap from drivers

Remove support for DMA unmapping from drivers as it is no longer
needed (DMA core code is now handling it).

Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
[djbw: fix up chan2parent() unused warning in drivers/dma/dw/core.c]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 arch/arm/include/asm/hardware/iop3xx-adma.h |  30 ----
 arch/arm/include/asm/hardware/iop_adma.h    |   4 -
 arch/arm/mach-iop13xx/include/mach/adma.h   |  26 ---
 drivers/dma/amba-pl08x.c                    |  31 ----
 drivers/dma/at_hdmac.c                      |  25 ---
 drivers/dma/dw/core.c                       |  24 ---
 drivers/dma/ep93xx_dma.c                    |  29 ---
 drivers/dma/fsldma.c                        |  16 --
 drivers/dma/ioat/dma.c                      |  16 --
 drivers/dma/ioat/dma.h                      |  12 --
 drivers/dma/ioat/dma_v2.c                   |   1 -
 drivers/dma/ioat/dma_v3.c                   | 166 -----------------
 drivers/dma/iop-adma.c                      |  96 +---------
 drivers/dma/mv_xor.c                        |  44 +----
 drivers/dma/ppc4xx/adma.c                   | 269 ----------------------------
 drivers/dma/timb_dma.c                      |  36 ----
 drivers/dma/txx9dmac.c                      |  24 ---
 17 files changed, 3 insertions(+), 846 deletions(-)

diff --git a/arch/arm/include/asm/hardware/iop3xx-adma.h b/arch/arm/include/asm/hardware/iop3xx-adma.h
index 9b28f1243bdc..240b29ef17db 100644
--- a/arch/arm/include/asm/hardware/iop3xx-adma.h
+++ b/arch/arm/include/asm/hardware/iop3xx-adma.h
@@ -393,36 +393,6 @@ static inline int iop_chan_zero_sum_slot_count(size_t len, int src_cnt,
 	return slot_cnt;
 }
 
-static inline int iop_desc_is_pq(struct iop_adma_desc_slot *desc)
-{
-	return 0;
-}
-
-static inline u32 iop_desc_get_dest_addr(struct iop_adma_desc_slot *desc,
-					struct iop_adma_chan *chan)
-{
-	union iop3xx_desc hw_desc = { .ptr = desc->hw_desc, };
-
-	switch (chan->device->id) {
-	case DMA0_ID:
-	case DMA1_ID:
-		return hw_desc.dma->dest_addr;
-	case AAU_ID:
-		return hw_desc.aau->dest_addr;
-	default:
-		BUG();
-	}
-	return 0;
-}
-
-
-static inline u32 iop_desc_get_qdest_addr(struct iop_adma_desc_slot *desc,
-					  struct iop_adma_chan *chan)
-{
-	BUG();
-	return 0;
-}
-
 static inline u32 iop_desc_get_byte_count(struct iop_adma_desc_slot *desc,
 					struct iop_adma_chan *chan)
 {
diff --git a/arch/arm/include/asm/hardware/iop_adma.h b/arch/arm/include/asm/hardware/iop_adma.h
index 122f86d8c991..250760e08103 100644
--- a/arch/arm/include/asm/hardware/iop_adma.h
+++ b/arch/arm/include/asm/hardware/iop_adma.h
@@ -82,8 +82,6 @@ struct iop_adma_chan {
  * @slot_cnt: total slots used in an transaction (group of operations)
  * @slots_per_op: number of slots per operation
  * @idx: pool index
- * @unmap_src_cnt: number of xor sources
- * @unmap_len: transaction bytecount
  * @tx_list: list of descriptors that are associated with one operation
  * @async_tx: support for the async_tx api
  * @group_list: list of slots that make up a multi-descriptor transaction
@@ -99,8 +97,6 @@ struct iop_adma_desc_slot {
 	u16 slot_cnt;
 	u16 slots_per_op;
 	u16 idx;
-	u16 unmap_src_cnt;
-	size_t unmap_len;
 	struct list_head tx_list;
 	struct dma_async_tx_descriptor async_tx;
 	union {
diff --git a/arch/arm/mach-iop13xx/include/mach/adma.h b/arch/arm/mach-iop13xx/include/mach/adma.h
index 6d3782d85a9f..a86fd0ed7757 100644
--- a/arch/arm/mach-iop13xx/include/mach/adma.h
+++ b/arch/arm/mach-iop13xx/include/mach/adma.h
@@ -218,20 +218,6 @@ iop_chan_xor_slot_count(size_t len, int src_cnt, int *slots_per_op)
 #define iop_chan_pq_slot_count iop_chan_xor_slot_count
 #define iop_chan_pq_zero_sum_slot_count iop_chan_xor_slot_count
 
-static inline u32 iop_desc_get_dest_addr(struct iop_adma_desc_slot *desc,
-					struct iop_adma_chan *chan)
-{
-	struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc;
-	return hw_desc->dest_addr;
-}
-
-static inline u32 iop_desc_get_qdest_addr(struct iop_adma_desc_slot *desc,
-					  struct iop_adma_chan *chan)
-{
-	struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc;
-	return hw_desc->q_dest_addr;
-}
-
 static inline u32 iop_desc_get_byte_count(struct iop_adma_desc_slot *desc,
 					struct iop_adma_chan *chan)
 {
@@ -350,18 +336,6 @@ iop_desc_init_pq(struct iop_adma_desc_slot *desc, int src_cnt,
 	hw_desc->desc_ctrl = u_desc_ctrl.value;
 }
 
-static inline int iop_desc_is_pq(struct iop_adma_desc_slot *desc)
-{
-	struct iop13xx_adma_desc_hw *hw_desc = desc->hw_desc;
-	union {
-		u32 value;
-		struct iop13xx_adma_desc_ctrl field;
-	} u_desc_ctrl;
-
-	u_desc_ctrl.value = hw_desc->desc_ctrl;
-	return u_desc_ctrl.field.pq_xfer_en;
-}
-
 static inline void
 iop_desc_init_pq_zero_sum(struct iop_adma_desc_slot *desc, int src_cnt,
 			  unsigned long flags)
diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index 7f9846464b77..6a5f782ec7eb 100644
--- a/drivers/dma/amba-pl08x.c
+++ b/drivers/dma/amba-pl08x.c
@@ -1164,43 +1164,12 @@ static void pl08x_free_txd(struct pl08x_driver_data *pl08x,
 	kfree(txd);
 }
 
-static void pl08x_unmap_buffers(struct pl08x_txd *txd)
-{
-	struct device *dev = txd->vd.tx.chan->device->dev;
-	struct pl08x_sg *dsg;
-
-	if (!(txd->vd.tx.flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
-		if (txd->vd.tx.flags & DMA_COMPL_SRC_UNMAP_SINGLE)
-			list_for_each_entry(dsg, &txd->dsg_list, node)
-				dma_unmap_single(dev, dsg->src_addr, dsg->len,
-						DMA_TO_DEVICE);
-		else {
-			list_for_each_entry(dsg, &txd->dsg_list, node)
-				dma_unmap_page(dev, dsg->src_addr, dsg->len,
-						DMA_TO_DEVICE);
-		}
-	}
-	if (!(txd->vd.tx.flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
-		if (txd->vd.tx.flags & DMA_COMPL_DEST_UNMAP_SINGLE)
-			list_for_each_entry(dsg, &txd->dsg_list, node)
-				dma_unmap_single(dev, dsg->dst_addr, dsg->len,
-						DMA_FROM_DEVICE);
-		else
-			list_for_each_entry(dsg, &txd->dsg_list, node)
-				dma_unmap_page(dev, dsg->dst_addr, dsg->len,
-						DMA_FROM_DEVICE);
-	}
-}
-
 static void pl08x_desc_free(struct virt_dma_desc *vd)
 {
 	struct pl08x_txd *txd = to_pl08x_txd(&vd->tx);
 	struct pl08x_dma_chan *plchan = to_pl08x_chan(vd->tx.chan);
 
 	dma_descriptor_unmap(txd);
-	if (!plchan->slave)
-		pl08x_unmap_buffers(txd);
-
 	if (!txd->done)
 		pl08x_release_mux(plchan);
 
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index cc7098ddf9d4..6deaefbec0b0 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -344,32 +344,7 @@ atc_chain_complete(struct at_dma_chan *atchan, struct at_desc *desc)
 	/* move myself to free_list */
 	list_move(&desc->desc_node, &atchan->free_list);
 
-	/* unmap dma addresses (not on slave channels) */
 	dma_descriptor_unmap(txd);
-	if (!atchan->chan_common.private) {
-		struct device *parent = chan2parent(&atchan->chan_common);
-		if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
-			if (txd->flags & DMA_COMPL_DEST_UNMAP_SINGLE)
-				dma_unmap_single(parent,
-						desc->lli.daddr,
-						desc->len, DMA_FROM_DEVICE);
-			else
-				dma_unmap_page(parent,
-						desc->lli.daddr,
-						desc->len, DMA_FROM_DEVICE);
-		}
-		if (!(txd->flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
-			if (txd->flags & DMA_COMPL_SRC_UNMAP_SINGLE)
-				dma_unmap_single(parent,
-						desc->lli.saddr,
-						desc->len, DMA_TO_DEVICE);
-			else
-				dma_unmap_page(parent,
-						desc->lli.saddr,
-						desc->len, DMA_TO_DEVICE);
-		}
-	}
-
 	/* for cyclic transfers,
 	 * no need to replay callback function while stopping */
 	if (!atc_chan_is_cyclic(atchan)) {
diff --git a/drivers/dma/dw/core.c b/drivers/dma/dw/core.c
index e3fe1b1a73b1..1f39ccce2727 100644
--- a/drivers/dma/dw/core.c
+++ b/drivers/dma/dw/core.c
@@ -85,10 +85,6 @@ static struct device *chan2dev(struct dma_chan *chan)
 {
 	return &chan->dev->device;
 }
-static struct device *chan2parent(struct dma_chan *chan)
-{
-	return chan->dev->device.parent;
-}
 
 static struct dw_desc *dwc_first_active(struct dw_dma_chan *dwc)
 {
@@ -312,26 +308,6 @@ dwc_descriptor_complete(struct dw_dma_chan *dwc, struct dw_desc *desc,
 	list_move(&desc->desc_node, &dwc->free_list);
 
 	dma_descriptor_unmap(txd);
-	if (!is_slave_direction(dwc->direction)) {
-		struct device *parent = chan2parent(&dwc->chan);
-		if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
-			if (txd->flags & DMA_COMPL_DEST_UNMAP_SINGLE)
-				dma_unmap_single(parent, desc->lli.dar,
-					desc->total_len, DMA_FROM_DEVICE);
-			else
-				dma_unmap_page(parent, desc->lli.dar,
-					desc->total_len, DMA_FROM_DEVICE);
-		}
-		if (!(txd->flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
-			if (txd->flags & DMA_COMPL_SRC_UNMAP_SINGLE)
-				dma_unmap_single(parent, desc->lli.sar,
-					desc->total_len, DMA_TO_DEVICE);
-			else
-				dma_unmap_page(parent, desc->lli.sar,
-					desc->total_len, DMA_TO_DEVICE);
-		}
-	}
-
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
 	if (callback)
diff --git a/drivers/dma/ep93xx_dma.c b/drivers/dma/ep93xx_dma.c
index dcd6bf5d3091..cb4bf682a708 100644
--- a/drivers/dma/ep93xx_dma.c
+++ b/drivers/dma/ep93xx_dma.c
@@ -733,28 +733,6 @@ static void ep93xx_dma_advance_work(struct ep93xx_dma_chan *edmac)
 	spin_unlock_irqrestore(&edmac->lock, flags);
 }
 
-static void ep93xx_dma_unmap_buffers(struct ep93xx_dma_desc *desc)
-{
-	struct device *dev = desc->txd.chan->device->dev;
-
-	if (!(desc->txd.flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
-		if (desc->txd.flags & DMA_COMPL_SRC_UNMAP_SINGLE)
-			dma_unmap_single(dev, desc->src_addr, desc->size,
-					 DMA_TO_DEVICE);
-		else
-			dma_unmap_page(dev, desc->src_addr, desc->size,
-				       DMA_TO_DEVICE);
-	}
-	if (!(desc->txd.flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
-		if (desc->txd.flags & DMA_COMPL_DEST_UNMAP_SINGLE)
-			dma_unmap_single(dev, desc->dst_addr, desc->size,
-					 DMA_FROM_DEVICE);
-		else
-			dma_unmap_page(dev, desc->dst_addr, desc->size,
-				       DMA_FROM_DEVICE);
-	}
-}
-
 static void ep93xx_dma_tasklet(unsigned long data)
 {
 	struct ep93xx_dma_chan *edmac = (struct ep93xx_dma_chan *)data;
@@ -787,14 +765,7 @@ static void ep93xx_dma_tasklet(unsigned long data)
 
 	/* Now we can release all the chained descriptors */
 	list_for_each_entry_safe(desc, d, &list, node) {
-		/*
-		 * For the memcpy channels the API requires us to unmap the
-		 * buffers unless requested otherwise.
-		 */
 		dma_descriptor_unmap(&desc->txd);
-		if (!edmac->chan.private)
-			ep93xx_dma_unmap_buffers(desc);
-
 		ep93xx_dma_desc_put(edmac, desc);
 	}
 
diff --git a/drivers/dma/fsldma.c b/drivers/dma/fsldma.c
index 66c4052a1f34..d9e6381b2b16 100644
--- a/drivers/dma/fsldma.c
+++ b/drivers/dma/fsldma.c
@@ -869,22 +869,6 @@ static void fsldma_cleanup_descriptor(struct fsldma_chan *chan,
 	dma_run_dependencies(txd);
 
 	dma_descriptor_unmap(txd);
-	/* Unmap the dst buffer, if requested */
-	if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
-		if (txd->flags & DMA_COMPL_DEST_UNMAP_SINGLE)
-			dma_unmap_single(dev, dst, len, DMA_FROM_DEVICE);
-		else
-			dma_unmap_page(dev, dst, len, DMA_FROM_DEVICE);
-	}
-
-	/* Unmap the src buffer, if requested */
-	if (!(txd->flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
-		if (txd->flags & DMA_COMPL_SRC_UNMAP_SINGLE)
-			dma_unmap_single(dev, src, len, DMA_TO_DEVICE);
-		else
-			dma_unmap_page(dev, src, len, DMA_TO_DEVICE);
-	}
-
 #ifdef FSL_DMA_LD_DEBUG
 	chan_dbg(chan, "LD %p free\n", desc);
 #endif
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index 26f8cfd6bc3f..c123e32dbbb0 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -531,21 +531,6 @@ static void ioat1_cleanup_event(unsigned long data)
 	writew(IOAT_CHANCTRL_RUN, ioat->base.reg_base + IOAT_CHANCTRL_OFFSET);
 }
 
-void ioat_dma_unmap(struct ioat_chan_common *chan, enum dma_ctrl_flags flags,
-		    size_t len, struct ioat_dma_descriptor *hw)
-{
-	struct pci_dev *pdev = chan->device->pdev;
-	size_t offset = len - hw->size;
-
-	if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP))
-		ioat_unmap(pdev, hw->dst_addr - offset, len,
-			   PCI_DMA_FROMDEVICE, flags, 1);
-
-	if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP))
-		ioat_unmap(pdev, hw->src_addr - offset, len,
-			   PCI_DMA_TODEVICE, flags, 0);
-}
-
 dma_addr_t ioat_get_current_completion(struct ioat_chan_common *chan)
 {
 	dma_addr_t phys_complete;
@@ -603,7 +588,6 @@ static void __cleanup(struct ioat_dma_chan *ioat, dma_addr_t phys_complete)
 		if (tx->cookie) {
 			dma_cookie_complete(tx);
 			dma_descriptor_unmap(tx);
-			ioat_dma_unmap(chan, tx->flags, desc->len, desc->hw);
 			ioat->active -= desc->hw->tx_cnt;
 			if (tx->callback) {
 				tx->callback(tx->callback_param);
diff --git a/drivers/dma/ioat/dma.h b/drivers/dma/ioat/dma.h
index 54fb7b9ff9aa..4300d5af188f 100644
--- a/drivers/dma/ioat/dma.h
+++ b/drivers/dma/ioat/dma.h
@@ -342,16 +342,6 @@ static inline bool is_ioat_bug(unsigned long err)
 	return !!err;
 }
 
-static inline void ioat_unmap(struct pci_dev *pdev, dma_addr_t addr, size_t len,
-			      int direction, enum dma_ctrl_flags flags, bool dst)
-{
-	if ((dst && (flags & DMA_COMPL_DEST_UNMAP_SINGLE)) ||
-	    (!dst && (flags & DMA_COMPL_SRC_UNMAP_SINGLE)))
-		pci_unmap_single(pdev, addr, len, direction);
-	else
-		pci_unmap_page(pdev, addr, len, direction);
-}
-
 int ioat_probe(struct ioatdma_device *device);
 int ioat_register(struct ioatdma_device *device);
 int ioat1_dma_probe(struct ioatdma_device *dev, int dca);
@@ -363,8 +353,6 @@ void ioat_init_channel(struct ioatdma_device *device,
 		       struct ioat_chan_common *chan, int idx);
 enum dma_status ioat_dma_tx_status(struct dma_chan *c, dma_cookie_t cookie,
 				   struct dma_tx_state *txstate);
-void ioat_dma_unmap(struct ioat_chan_common *chan, enum dma_ctrl_flags flags,
-		    size_t len, struct ioat_dma_descriptor *hw);
 bool ioat_cleanup_preamble(struct ioat_chan_common *chan,
 			   dma_addr_t *phys_complete);
 void ioat_kobject_add(struct ioatdma_device *device, struct kobj_type *type);
diff --git a/drivers/dma/ioat/dma_v2.c b/drivers/dma/ioat/dma_v2.c
index fc7b50a813cc..5d3affe7e976 100644
--- a/drivers/dma/ioat/dma_v2.c
+++ b/drivers/dma/ioat/dma_v2.c
@@ -149,7 +149,6 @@ static void __cleanup(struct ioat2_dma_chan *ioat, dma_addr_t phys_complete)
 		dump_desc_dbg(ioat, desc);
 		if (tx->cookie) {
 			dma_descriptor_unmap(tx);
-			ioat_dma_unmap(chan, tx->flags, desc->len, desc->hw);
 			dma_cookie_complete(tx);
 			if (tx->callback) {
 				tx->callback(tx->callback_param);
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index 57a2901b917a..43386c171bba 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -96,13 +96,6 @@ static const u8 pq16_idx_to_sed[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0,
 
 static void ioat3_eh(struct ioat2_dma_chan *ioat);
 
-static dma_addr_t xor_get_src(struct ioat_raw_descriptor *descs[2], int idx)
-{
-	struct ioat_raw_descriptor *raw = descs[xor_idx_to_desc >> idx & 1];
-
-	return raw->field[xor_idx_to_field[idx]];
-}
-
 static void xor_set_src(struct ioat_raw_descriptor *descs[2],
 			dma_addr_t addr, u32 offset, int idx)
 {
@@ -296,164 +289,6 @@ static void ioat3_free_sed(struct ioatdma_device *device, struct ioat_sed_ent *s
 	kmem_cache_free(device->sed_pool, sed);
 }
 
-static void ioat3_dma_unmap(struct ioat2_dma_chan *ioat,
-			    struct ioat_ring_ent *desc, int idx)
-{
-	struct ioat_chan_common *chan = &ioat->base;
-	struct pci_dev *pdev = chan->device->pdev;
-	size_t len = desc->len;
-	size_t offset = len - desc->hw->size;
-	struct dma_async_tx_descriptor *tx = &desc->txd;
-	enum dma_ctrl_flags flags = tx->flags;
-
-	switch (desc->hw->ctl_f.op) {
-	case IOAT_OP_COPY:
-		if (!desc->hw->ctl_f.null) /* skip 'interrupt' ops */
-			ioat_dma_unmap(chan, flags, len, desc->hw);
-		break;
-	case IOAT_OP_XOR_VAL:
-	case IOAT_OP_XOR: {
-		struct ioat_xor_descriptor *xor = desc->xor;
-		struct ioat_ring_ent *ext;
-		struct ioat_xor_ext_descriptor *xor_ex = NULL;
-		int src_cnt = src_cnt_to_sw(xor->ctl_f.src_cnt);
-		struct ioat_raw_descriptor *descs[2];
-		int i;
-
-		if (src_cnt > 5) {
-			ext = ioat2_get_ring_ent(ioat, idx + 1);
-			xor_ex = ext->xor_ex;
-		}
-
-		if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
-			descs[0] = (struct ioat_raw_descriptor *) xor;
-			descs[1] = (struct ioat_raw_descriptor *) xor_ex;
-			for (i = 0; i < src_cnt; i++) {
-				dma_addr_t src = xor_get_src(descs, i);
-
-				ioat_unmap(pdev, src - offset, len,
-					   PCI_DMA_TODEVICE, flags, 0);
-			}
-
-			/* dest is a source in xor validate operations */
-			if (xor->ctl_f.op == IOAT_OP_XOR_VAL) {
-				ioat_unmap(pdev, xor->dst_addr - offset, len,
-					   PCI_DMA_TODEVICE, flags, 1);
-				break;
-			}
-		}
-
-		if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP))
-			ioat_unmap(pdev, xor->dst_addr - offset, len,
-				   PCI_DMA_FROMDEVICE, flags, 1);
-		break;
-	}
-	case IOAT_OP_PQ_VAL:
-	case IOAT_OP_PQ: {
-		struct ioat_pq_descriptor *pq = desc->pq;
-		struct ioat_ring_ent *ext;
-		struct ioat_pq_ext_descriptor *pq_ex = NULL;
-		int src_cnt = src_cnt_to_sw(pq->ctl_f.src_cnt);
-		struct ioat_raw_descriptor *descs[2];
-		int i;
-
-		if (src_cnt > 3) {
-			ext = ioat2_get_ring_ent(ioat, idx + 1);
-			pq_ex = ext->pq_ex;
-		}
-
-		/* in the 'continue' case don't unmap the dests as sources */
-		if (dmaf_p_disabled_continue(flags))
-			src_cnt--;
-		else if (dmaf_continue(flags))
-			src_cnt -= 3;
-
-		if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
-			descs[0] = (struct ioat_raw_descriptor *) pq;
-			descs[1] = (struct ioat_raw_descriptor *) pq_ex;
-			for (i = 0; i < src_cnt; i++) {
-				dma_addr_t src = pq_get_src(descs, i);
-
-				ioat_unmap(pdev, src - offset, len,
-					   PCI_DMA_TODEVICE, flags, 0);
-			}
-
-			/* the dests are sources in pq validate operations */
-			if (pq->ctl_f.op == IOAT_OP_XOR_VAL) {
-				if (!(flags & DMA_PREP_PQ_DISABLE_P))
-					ioat_unmap(pdev, pq->p_addr - offset,
-						   len, PCI_DMA_TODEVICE, flags, 0);
-				if (!(flags & DMA_PREP_PQ_DISABLE_Q))
-					ioat_unmap(pdev, pq->q_addr - offset,
-						   len, PCI_DMA_TODEVICE, flags, 0);
-				break;
-			}
-		}
-
-		if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
-			if (!(flags & DMA_PREP_PQ_DISABLE_P))
-				ioat_unmap(pdev, pq->p_addr - offset, len,
-					   PCI_DMA_BIDIRECTIONAL, flags, 1);
-			if (!(flags & DMA_PREP_PQ_DISABLE_Q))
-				ioat_unmap(pdev, pq->q_addr - offset, len,
-					   PCI_DMA_BIDIRECTIONAL, flags, 1);
-		}
-		break;
-	}
-	case IOAT_OP_PQ_16S:
-	case IOAT_OP_PQ_VAL_16S: {
-		struct ioat_pq_descriptor *pq = desc->pq;
-		int src_cnt = src16_cnt_to_sw(pq->ctl_f.src_cnt);
-		struct ioat_raw_descriptor *descs[4];
-		int i;
-
-		/* in the 'continue' case don't unmap the dests as sources */
-		if (dmaf_p_disabled_continue(flags))
-			src_cnt--;
-		else if (dmaf_continue(flags))
-			src_cnt -= 3;
-
-		if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
-			descs[0] = (struct ioat_raw_descriptor *)pq;
-			descs[1] = (struct ioat_raw_descriptor *)(desc->sed->hw);
-			descs[2] = (struct ioat_raw_descriptor *)(&desc->sed->hw->b[0]);
-			for (i = 0; i < src_cnt; i++) {
-				dma_addr_t src = pq16_get_src(descs, i);
-
-				ioat_unmap(pdev, src - offset, len,
-					   PCI_DMA_TODEVICE, flags, 0);
-			}
-
-			/* the dests are sources in pq validate operations */
-			if (pq->ctl_f.op == IOAT_OP_XOR_VAL) {
-				if (!(flags & DMA_PREP_PQ_DISABLE_P))
-					ioat_unmap(pdev, pq->p_addr - offset,
-						   len, PCI_DMA_TODEVICE,
-						   flags, 0);
-				if (!(flags & DMA_PREP_PQ_DISABLE_Q))
-					ioat_unmap(pdev, pq->q_addr - offset,
-						   len, PCI_DMA_TODEVICE,
-						   flags, 0);
-				break;
-			}
-		}
-
-		if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
-			if (!(flags & DMA_PREP_PQ_DISABLE_P))
-				ioat_unmap(pdev, pq->p_addr - offset, len,
-					   PCI_DMA_BIDIRECTIONAL, flags, 1);
-			if (!(flags & DMA_PREP_PQ_DISABLE_Q))
-				ioat_unmap(pdev, pq->q_addr - offset, len,
-					   PCI_DMA_BIDIRECTIONAL, flags, 1);
-		}
-		break;
-	}
-	default:
-		dev_err(&pdev->dev, "%s: unknown op type: %#x\n",
-			__func__, desc->hw->ctl_f.op);
-	}
-}
-
 static bool desc_has_ext(struct ioat_ring_ent *desc)
 {
 	struct ioat_dma_descriptor *hw = desc->hw;
@@ -578,7 +413,6 @@ static void __cleanup(struct ioat2_dma_chan *ioat, dma_addr_t phys_complete)
 		if (tx->cookie) {
 			dma_cookie_complete(tx);
 			dma_descriptor_unmap(tx);
-			ioat3_dma_unmap(ioat, desc, idx + i);
 			if (tx->callback) {
 				tx->callback(tx->callback_param);
 				tx->callback = NULL;
diff --git a/drivers/dma/iop-adma.c b/drivers/dma/iop-adma.c
index 8f6e426590eb..173e26ff18f8 100644
--- a/drivers/dma/iop-adma.c
+++ b/drivers/dma/iop-adma.c
@@ -61,80 +61,6 @@ static void iop_adma_free_slots(struct iop_adma_desc_slot *slot)
 	}
 }
 
-static void
-iop_desc_unmap(struct iop_adma_chan *iop_chan, struct iop_adma_desc_slot *desc)
-{
-	struct dma_async_tx_descriptor *tx = &desc->async_tx;
-	struct iop_adma_desc_slot *unmap = desc->group_head;
-	struct device *dev = &iop_chan->device->pdev->dev;
-	u32 len = unmap->unmap_len;
-	enum dma_ctrl_flags flags = tx->flags;
-	u32 src_cnt;
-	dma_addr_t addr;
-	dma_addr_t dest;
-
-	src_cnt = unmap->unmap_src_cnt;
-	dest = iop_desc_get_dest_addr(unmap, iop_chan);
-	if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
-		enum dma_data_direction dir;
-
-		if (src_cnt > 1) /* is xor? */
-			dir = DMA_BIDIRECTIONAL;
-		else
-			dir = DMA_FROM_DEVICE;
-
-		dma_unmap_page(dev, dest, len, dir);
-	}
-
-	if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
-		while (src_cnt--) {
-			addr = iop_desc_get_src_addr(unmap, iop_chan, src_cnt);
-			if (addr == dest)
-				continue;
-			dma_unmap_page(dev, addr, len, DMA_TO_DEVICE);
-		}
-	}
-	desc->group_head = NULL;
-}
-
-static void
-iop_desc_unmap_pq(struct iop_adma_chan *iop_chan, struct iop_adma_desc_slot *desc)
-{
-	struct dma_async_tx_descriptor *tx = &desc->async_tx;
-	struct iop_adma_desc_slot *unmap = desc->group_head;
-	struct device *dev = &iop_chan->device->pdev->dev;
-	u32 len = unmap->unmap_len;
-	enum dma_ctrl_flags flags = tx->flags;
-	u32 src_cnt = unmap->unmap_src_cnt;
-	dma_addr_t pdest = iop_desc_get_dest_addr(unmap, iop_chan);
-	dma_addr_t qdest = iop_desc_get_qdest_addr(unmap, iop_chan);
-	int i;
-
-	if (tx->flags & DMA_PREP_CONTINUE)
-		src_cnt -= 3;
-
-	if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP) && !desc->pq_check_result) {
-		dma_unmap_page(dev, pdest, len, DMA_BIDIRECTIONAL);
-		dma_unmap_page(dev, qdest, len, DMA_BIDIRECTIONAL);
-	}
-
-	if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
-		dma_addr_t addr;
-
-		for (i = 0; i < src_cnt; i++) {
-			addr = iop_desc_get_src_addr(unmap, iop_chan, i);
-			dma_unmap_page(dev, addr, len, DMA_TO_DEVICE);
-		}
-		if (desc->pq_check_result) {
-			dma_unmap_page(dev, pdest, len, DMA_TO_DEVICE);
-			dma_unmap_page(dev, qdest, len, DMA_TO_DEVICE);
-		}
-	}
-
-	desc->group_head = NULL;
-}
-
-
 static dma_cookie_t
 iop_adma_run_tx_complete_actions(struct iop_adma_desc_slot *desc,
 	struct iop_adma_chan *iop_chan, dma_cookie_t cookie)
@@ -153,15 +79,8 @@ iop_adma_run_tx_complete_actions(struct iop_adma_desc_slot *desc,
 			tx->callback(tx->callback_param);
 
 		dma_descriptor_unmap(tx);
-		/* unmap dma addresses
-		 * (unmap_single vs unmap_page?)
-		 */
-		if (desc->group_head && desc->unmap_len) {
-			if (iop_desc_is_pq(desc))
-				iop_desc_unmap_pq(iop_chan, desc);
-			else
-				iop_desc_unmap(iop_chan, desc);
-		}
+		if (desc->group_head)
+			desc->group_head = NULL;
 	}
 
 	/* run dependent operations */
@@ -592,7 +511,6 @@ iop_adma_prep_dma_interrupt(struct dma_chan *chan, unsigned long flags)
 	if (sw_desc) {
 		grp_start = sw_desc->group_head;
 		iop_desc_init_interrupt(grp_start, iop_chan);
-		grp_start->unmap_len = 0;
 		sw_desc->async_tx.flags = flags;
 	}
 	spin_unlock_bh(&iop_chan->lock);
@@ -624,8 +542,6 @@ iop_adma_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dma_dest,
 		iop_desc_set_byte_count(grp_start, iop_chan, len);
 		iop_desc_set_dest_addr(grp_start, iop_chan, dma_dest);
 		iop_desc_set_memcpy_src_addr(grp_start, dma_src);
-		sw_desc->unmap_src_cnt = 1;
-		sw_desc->unmap_len = len;
 		sw_desc->async_tx.flags = flags;
 	}
 	spin_unlock_bh(&iop_chan->lock);
@@ -658,8 +574,6 @@ iop_adma_prep_dma_xor(struct dma_chan *chan, dma_addr_t dma_dest,
 		iop_desc_init_xor(grp_start, src_cnt, flags);
 		iop_desc_set_byte_count(grp_start, iop_chan, len);
 		iop_desc_set_dest_addr(grp_start, iop_chan, dma_dest);
-		sw_desc->unmap_src_cnt = src_cnt;
-		sw_desc->unmap_len = len;
 		sw_desc->async_tx.flags = flags;
 		while (src_cnt--)
 			iop_desc_set_xor_src_addr(grp_start, src_cnt,
@@ -695,8 +609,6 @@ iop_adma_prep_dma_xor_val(struct dma_chan *chan, dma_addr_t *dma_src,
 		grp_start->xor_check_result = result;
 		pr_debug("\t%s: grp_start->xor_check_result: %p\n",
 			__func__, grp_start->xor_check_result);
-		sw_desc->unmap_src_cnt = src_cnt;
-		sw_desc->unmap_len = len;
 		sw_desc->async_tx.flags = flags;
 		while (src_cnt--)
 			iop_desc_set_zero_sum_src_addr(grp_start, src_cnt,
@@ -749,8 +661,6 @@ iop_adma_prep_dma_pq(struct dma_chan *chan, dma_addr_t *dst, dma_addr_t *src,
 			dst[0] = dst[1] & 0x7;
 
 		iop_desc_set_pq_addr(g, dst);
-		sw_desc->unmap_src_cnt = src_cnt;
-		sw_desc->unmap_len = len;
 		sw_desc->async_tx.flags = flags;
 		for (i = 0; i < src_cnt; i++)
 			iop_desc_set_pq_src_addr(g, i, src[i], scf[i]);
@@ -805,8 +715,6 @@ iop_adma_prep_dma_pq_val(struct dma_chan *chan, dma_addr_t *pq, dma_addr_t *src,
 		g->pq_check_result = pqres;
 		pr_debug("\t%s: g->pq_check_result: %p\n",
 			__func__, g->pq_check_result);
-		sw_desc->unmap_src_cnt = src_cnt+2;
-		sw_desc->unmap_len = len;
 		sw_desc->async_tx.flags = flags;
 		while (src_cnt--)
 			iop_desc_set_pq_zero_sum_src_addr(g, src_cnt,
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index ed1ab1d0875e..17326e780e23 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -60,14 +60,6 @@ static u32 mv_desc_get_dest_addr(struct mv_xor_desc_slot *desc)
 	return hw_desc->phy_dest_addr;
 }
 
-static u32 mv_desc_get_src_addr(struct mv_xor_desc_slot *desc,
-				int src_idx)
-{
-	struct mv_xor_desc *hw_desc = desc->hw_desc;
-	return hw_desc->phy_src_addr[mv_phy_src_idx(src_idx)];
-}
-
-
 static void mv_desc_set_byte_count(struct mv_xor_desc_slot *desc,
 				   u32 byte_count)
 {
@@ -279,42 +271,8 @@ mv_xor_run_tx_complete_actions(struct mv_xor_desc_slot *desc,
 				desc->async_tx.callback_param);
 
 		dma_descriptor_unmap(&desc->async_tx);
-		/* unmap dma addresses
-		 * (unmap_single vs unmap_page?)
-		 */
-		if (desc->group_head && desc->unmap_len) {
-			struct mv_xor_desc_slot *unmap = desc->group_head;
-			struct device *dev = mv_chan_to_devp(mv_chan);
-			u32 len = unmap->unmap_len;
-			enum dma_ctrl_flags flags = desc->async_tx.flags;
-			u32 src_cnt;
-			dma_addr_t addr;
-			dma_addr_t dest;
-
-			src_cnt = unmap->unmap_src_cnt;
-			dest = mv_desc_get_dest_addr(unmap);
-			if (!(flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
-				enum dma_data_direction dir;
-
-				if (src_cnt > 1) /* is xor ? */
-					dir = DMA_BIDIRECTIONAL;
-				else
-					dir = DMA_FROM_DEVICE;
-				dma_unmap_page(dev, dest, len, dir);
-			}
-
-			if (!(flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
-				while (src_cnt--) {
-					addr = mv_desc_get_src_addr(unmap,
-								    src_cnt);
-					if (addr == dest)
-						continue;
-					dma_unmap_page(dev, addr, len,
-						       DMA_TO_DEVICE);
-				}
-			}
+		if (desc->group_head)
 			desc->group_head = NULL;
-		}
 	}
 
 	/* run dependent operations */
diff --git a/drivers/dma/ppc4xx/adma.c b/drivers/dma/ppc4xx/adma.c
index 442492da7415..429be432ab7e 100644
--- a/drivers/dma/ppc4xx/adma.c
+++ b/drivers/dma/ppc4xx/adma.c
@@ -801,218 +801,6 @@ static void ppc440spe_desc_set_link(struct ppc440spe_adma_chan *chan,
 	local_irq_restore(flags);
 }
 
-/**
- * ppc440spe_desc_get_src_addr - extract the source address from the descriptor
- */
-static u32 ppc440spe_desc_get_src_addr(struct ppc440spe_adma_desc_slot *desc,
-				struct ppc440spe_adma_chan *chan, int src_idx)
-{
-	struct dma_cdb *dma_hw_desc;
-	struct xor_cb *xor_hw_desc;
-
-	switch (chan->device->id) {
-	case PPC440SPE_DMA0_ID:
-	case PPC440SPE_DMA1_ID:
-		dma_hw_desc = desc->hw_desc;
-		/* May have 0, 1, 2, or 3 sources */
-		switch (dma_hw_desc->opc) {
-		case DMA_CDB_OPC_NO_OP:
-		case DMA_CDB_OPC_DFILL128:
-			return 0;
-		case DMA_CDB_OPC_DCHECK128:
-			if (unlikely(src_idx)) {
-				printk(KERN_ERR "%s: try to get %d source for"
-				    " DCHECK128\n", __func__, src_idx);
-				BUG();
-			}
-			return le32_to_cpu(dma_hw_desc->sg1l);
-		case DMA_CDB_OPC_MULTICAST:
-		case DMA_CDB_OPC_MV_SG1_SG2:
-			if (unlikely(src_idx > 2)) {
-				printk(KERN_ERR "%s: try to get %d source from"
-				    " DMA descr\n", __func__, src_idx);
-				BUG();
-			}
-			if (src_idx) {
-				if (le32_to_cpu(dma_hw_desc->sg1u) &
-				    DMA_CUED_XOR_WIN_MSK) {
-					u8 region;
-
-					if (src_idx == 1)
-						return le32_to_cpu(
-						    dma_hw_desc->sg1l) +
-							desc->unmap_len;
-
-					region = (le32_to_cpu(
-					    dma_hw_desc->sg1u)) >>
-						DMA_CUED_REGION_OFF;
-
-					region &= DMA_CUED_REGION_MSK;
-					switch (region) {
-					case DMA_RXOR123:
-						return le32_to_cpu(
-						    dma_hw_desc->sg1l) +
-							(desc->unmap_len << 1);
-					case DMA_RXOR124:
-						return le32_to_cpu(
-						    dma_hw_desc->sg1l) +
-							(desc->unmap_len * 3);
-					case DMA_RXOR125:
-						return le32_to_cpu(
-						    dma_hw_desc->sg1l) +
-							(desc->unmap_len << 2);
-					default:
-						printk(KERN_ERR
-						    "%s: try to"
-						    " get src3 for region %02x"
-						    "PPC440SPE_DESC_RXOR12?\n",
-						    __func__, region);
-						BUG();
-					}
-				} else {
-					printk(KERN_ERR
-						"%s: try to get %d"
-						" source for non-cued descr\n",
-						__func__, src_idx);
-					BUG();
-				}
-			}
-			return le32_to_cpu(dma_hw_desc->sg1l);
-		default:
-			printk(KERN_ERR "%s: unknown OPC 0x%02x\n",
-				__func__, dma_hw_desc->opc);
-			BUG();
-		}
-		return le32_to_cpu(dma_hw_desc->sg1l);
-	case PPC440SPE_XOR_ID:
-		/* May have up to 16 sources */
-		xor_hw_desc = desc->hw_desc;
-		return xor_hw_desc->ops[src_idx].l;
-	}
-	return 0;
-}
-
-/**
- * ppc440spe_desc_get_dest_addr - extract the destination address from the
- * descriptor
- */
-static u32 ppc440spe_desc_get_dest_addr(struct ppc440spe_adma_desc_slot *desc,
-				struct ppc440spe_adma_chan *chan, int idx)
-{
-	struct dma_cdb *dma_hw_desc;
-	struct xor_cb *xor_hw_desc;
-
-	switch (chan->device->id) {
-	case PPC440SPE_DMA0_ID:
-	case PPC440SPE_DMA1_ID:
-		dma_hw_desc = desc->hw_desc;
-
-		if (likely(!idx))
-			return le32_to_cpu(dma_hw_desc->sg2l);
-		return le32_to_cpu(dma_hw_desc->sg3l);
-	case PPC440SPE_XOR_ID:
-		xor_hw_desc = desc->hw_desc;
-		return xor_hw_desc->cbtal;
-	}
-	return 0;
-}
-
-/**
- * ppc440spe_desc_get_src_num - extract the number of source addresses from
- * the descriptor
- */
-static u32 ppc440spe_desc_get_src_num(struct ppc440spe_adma_desc_slot *desc,
-				struct ppc440spe_adma_chan *chan)
-{
-	struct dma_cdb *dma_hw_desc;
-	struct xor_cb *xor_hw_desc;
-
-	switch (chan->device->id) {
-	case PPC440SPE_DMA0_ID:
-	case PPC440SPE_DMA1_ID:
-		dma_hw_desc = desc->hw_desc;
-
-		switch (dma_hw_desc->opc) {
-		case DMA_CDB_OPC_NO_OP:
-		case DMA_CDB_OPC_DFILL128:
-			return 0;
-		case DMA_CDB_OPC_DCHECK128:
-			return 1;
-		case DMA_CDB_OPC_MV_SG1_SG2:
-		case DMA_CDB_OPC_MULTICAST:
-			/*
-			 * Only for RXOR operations we have more than
-			 * one source
-			 */
-			if (le32_to_cpu(dma_hw_desc->sg1u) &
-			    DMA_CUED_XOR_WIN_MSK) {
-				/* RXOR op, there are 2 or 3 sources */
-				if (((le32_to_cpu(dma_hw_desc->sg1u) >>
-				    DMA_CUED_REGION_OFF) &
-				      DMA_CUED_REGION_MSK) == DMA_RXOR12) {
-					/* RXOR 1-2 */
-					return 2;
-				} else {
-					/* RXOR 1-2-3/1-2-4/1-2-5 */
-					return 3;
-				}
-			}
-			return 1;
-		default:
-			printk(KERN_ERR "%s: unknown OPC 0x%02x\n",
-				__func__, dma_hw_desc->opc);
-			BUG();
-		}
-	case PPC440SPE_XOR_ID:
-		/* up to 16 sources */
-		xor_hw_desc = desc->hw_desc;
-		return xor_hw_desc->cbc & XOR_CDCR_OAC_MSK;
-	default:
-		BUG();
-	}
-	return 0;
-}
-
-/**
- * ppc440spe_desc_get_dst_num - get the number of destination addresses in
- * this descriptor
- */
-static u32 ppc440spe_desc_get_dst_num(struct ppc440spe_adma_desc_slot *desc,
-				struct ppc440spe_adma_chan *chan)
-{
-	struct dma_cdb *dma_hw_desc;
-
-	switch (chan->device->id) {
-	case PPC440SPE_DMA0_ID:
-	case PPC440SPE_DMA1_ID:
-		/* May be 1 or 2 destinations */
-		dma_hw_desc = desc->hw_desc;
-		switch (dma_hw_desc->opc) {
-		case DMA_CDB_OPC_NO_OP:
-		case DMA_CDB_OPC_DCHECK128:
-			return 0;
-		case DMA_CDB_OPC_MV_SG1_SG2:
-		case DMA_CDB_OPC_DFILL128:
-			return 1;
-		case DMA_CDB_OPC_MULTICAST:
-			if (desc->dst_cnt == 2)
-				return 2;
-			else
-				return 1;
-		default:
-			printk(KERN_ERR "%s: unknown OPC 0x%02x\n",
-				__func__, dma_hw_desc->opc);
-			BUG();
-		}
-	case PPC440SPE_XOR_ID:
-		/* Always only 1 destination */
-		return 1;
-	default:
-		BUG();
-	}
-	return 0;
-}
-
 /**
  * ppc440spe_desc_get_link - get the address of the descriptor that
  * follows this one
@@ -1705,43 +1493,6 @@ static void ppc440spe_adma_free_slots(struct ppc440spe_adma_desc_slot *slot,
 	}
 }
 
-static void ppc440spe_adma_unmap(struct ppc440spe_adma_chan *chan,
-				 struct ppc440spe_adma_desc_slot *desc)
-{
-	u32 src_cnt, dst_cnt;
-	dma_addr_t addr;
-
-	/*
-	 * get the number of sources & destination
-	 * included in this descriptor and unmap
-	 * them all
-	 */
-	src_cnt = ppc440spe_desc_get_src_num(desc, chan);
-	dst_cnt = ppc440spe_desc_get_dst_num(desc, chan);
-
-	/* unmap destinations */
-	if (!(desc->async_tx.flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
-		while (dst_cnt--) {
-			addr = ppc440spe_desc_get_dest_addr(
-				desc, chan, dst_cnt);
-			dma_unmap_page(chan->device->dev,
-					addr, desc->unmap_len,
-					DMA_FROM_DEVICE);
-		}
-	}
-
-	/* unmap sources */
-	if (!(desc->async_tx.flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
-		while (src_cnt--) {
-			addr = ppc440spe_desc_get_src_addr(
-				desc, chan, src_cnt);
-			dma_unmap_page(chan->device->dev,
-					addr, desc->unmap_len,
-					DMA_TO_DEVICE);
-		}
-	}
-}
-
 /**
  * ppc440spe_adma_run_tx_complete_actions - call functions to be called
  * upon completion
@@ -1766,26 +1517,6 @@ static dma_cookie_t ppc440spe_adma_run_tx_complete_actions(
 				desc->async_tx.callback_param);
 
 		dma_descriptor_unmap(&desc->async_tx);
-		/* unmap dma addresses
-		 * (unmap_single vs unmap_page?)
-		 *
-		 * actually, ppc's dma_unmap_page() functions are empty, so
-		 * the following code is just for the sake of completeness
-		 */
-		if (chan && chan->needs_unmap && desc->group_head &&
-		     desc->unmap_len) {
-			struct ppc440spe_adma_desc_slot *unmap =
-							desc->group_head;
-			/* assume 1 slot per op always */
-			u32 slot_count = unmap->slot_cnt;
-
-			/* Run through the group list and unmap addresses */
-			for (i = 0; i < slot_count; i++) {
-				BUG_ON(!unmap);
-				ppc440spe_adma_unmap(chan, unmap);
-				unmap = unmap->hw_next;
-			}
-		}
 	}
 
 	/* run dependent operations */
diff --git a/drivers/dma/timb_dma.c b/drivers/dma/timb_dma.c
index 1d0c98839087..4506a7b4f972 100644
--- a/drivers/dma/timb_dma.c
+++ b/drivers/dma/timb_dma.c
@@ -154,38 +154,6 @@ static bool __td_dma_done_ack(struct timb_dma_chan *td_chan)
 	return done;
 }
 
-static void __td_unmap_desc(struct timb_dma_chan *td_chan, const u8 *dma_desc,
-	bool single)
-{
-	dma_addr_t addr;
-	int len;
-
-	addr = (dma_desc[7] << 24) | (dma_desc[6] << 16) | (dma_desc[5] << 8) |
-		dma_desc[4];
-
-	len = (dma_desc[3] << 8) | dma_desc[2];
-
-	if (single)
-		dma_unmap_single(chan2dev(&td_chan->chan), addr, len,
-			DMA_TO_DEVICE);
-	else
-		dma_unmap_page(chan2dev(&td_chan->chan), addr, len,
-			DMA_TO_DEVICE);
-}
-
-static void __td_unmap_descs(struct timb_dma_desc *td_desc, bool single)
-{
-	struct timb_dma_chan *td_chan = container_of(td_desc->txd.chan,
-		struct timb_dma_chan, chan);
-	u8 *descs;
-
-	for (descs = td_desc->desc_list; ; descs += TIMB_DMA_DESC_SIZE) {
-		__td_unmap_desc(td_chan, descs, single);
-		if (descs[0] & 0x02)
-			break;
-	}
-}
-
 static int td_fill_desc(struct timb_dma_chan *td_chan, u8 *dma_desc,
 	struct scatterlist *sg, bool last)
 {
@@ -294,10 +262,6 @@ static void __td_finish(struct timb_dma_chan *td_chan)
 	list_move(&td_desc->desc_node, &td_chan->free_list);
 
 	dma_descriptor_unmap(txd);
-	if (!(txd->flags & DMA_COMPL_SKIP_SRC_UNMAP))
-		__td_unmap_descs(td_desc,
-			txd->flags & DMA_COMPL_SRC_UNMAP_SINGLE);
-
 	/*
 	 * The API requires that no submissions are done from a
 	 * callback, so we don't need to drop the lock here
diff --git a/drivers/dma/txx9dmac.c b/drivers/dma/txx9dmac.c
index 22a0b6c78c77..6f2729874016 100644
--- a/drivers/dma/txx9dmac.c
+++ b/drivers/dma/txx9dmac.c
@@ -420,30 +420,6 @@ txx9dmac_descriptor_complete(struct txx9dmac_chan *dc,
 	list_move(&desc->desc_node, &dc->free_list);
 
 	dma_descriptor_unmap(txd);
-	if (!ds) {
-		dma_addr_t dmaaddr;
-		if (!(txd->flags & DMA_COMPL_SKIP_DEST_UNMAP)) {
-			dmaaddr = is_dmac64(dc) ?
-				desc->hwdesc.DAR : desc->hwdesc32.DAR;
-			if (txd->flags & DMA_COMPL_DEST_UNMAP_SINGLE)
-				dma_unmap_single(chan2parent(&dc->chan),
-					dmaaddr, desc->len, DMA_FROM_DEVICE);
-			else
-				dma_unmap_page(chan2parent(&dc->chan),
-					dmaaddr, desc->len, DMA_FROM_DEVICE);
-		}
-		if (!(txd->flags & DMA_COMPL_SKIP_SRC_UNMAP)) {
-			dmaaddr = is_dmac64(dc) ?
-				desc->hwdesc.SAR : desc->hwdesc32.SAR;
-			if (txd->flags & DMA_COMPL_SRC_UNMAP_SINGLE)
-				dma_unmap_single(chan2parent(&dc->chan),
-					dmaaddr, desc->len, DMA_TO_DEVICE);
-			else
-				dma_unmap_page(chan2parent(&dc->chan),
-					dmaaddr, desc->len, DMA_TO_DEVICE);
-		}
-	}
-
 	/*
 	 * The API requires that no submissions are done from a
 	 * callback, so we don't need to drop the lock here
-- 
cgit 


From 0776ae7b89782124ddd72eafe0b1e0fdcdabe32e Mon Sep 17 00:00:00 2001
From: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Date: Fri, 18 Oct 2013 19:35:33 +0200
Subject: dmaengine: remove DMA unmap flags

Remove no longer needed DMA unmap flags:
- DMA_COMPL_SKIP_SRC_UNMAP
- DMA_COMPL_SKIP_DEST_UNMAP
- DMA_COMPL_SRC_UNMAP_SINGLE
- DMA_COMPL_DEST_UNMAP_SINGLE

Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Jon Mason <jon.mason@intel.com>
Acked-by: Mark Brown <broonie@linaro.org>
[djbw: clean up straggling skip unmap flags in ntb]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 crypto/async_tx/async_memcpy.c           |  3 +--
 crypto/async_tx/async_pq.c               |  1 -
 crypto/async_tx/async_raid6_recov.c      |  8 ++------
 crypto/async_tx/async_xor.c              |  6 ++----
 drivers/ata/pata_arasan_cf.c             |  3 +--
 drivers/dma/dmaengine.c                  |  3 +--
 drivers/dma/dmatest.c                    |  3 +--
 drivers/dma/ioat/dma.c                   |  3 +--
 drivers/dma/ioat/dma_v3.c                | 12 +++---------
 drivers/media/platform/m2m-deinterlace.c |  3 +--
 drivers/media/platform/timblogiw.c       |  2 +-
 drivers/misc/carma/carma-fpga.c          |  3 +--
 drivers/mtd/nand/atmel_nand.c            |  3 +--
 drivers/mtd/nand/fsmc_nand.c             |  2 --
 drivers/net/ethernet/micrel/ks8842.c     |  6 ++----
 drivers/ntb/ntb_transport.c              | 11 +++--------
 drivers/spi/spi-dw-mid.c                 |  4 ++--
 include/linux/dmaengine.h                | 18 ++++--------------
 18 files changed, 27 insertions(+), 67 deletions(-)

diff --git a/crypto/async_tx/async_memcpy.c b/crypto/async_tx/async_memcpy.c
index 72750214f779..f8c0b8dbeb75 100644
--- a/crypto/async_tx/async_memcpy.c
+++ b/crypto/async_tx/async_memcpy.c
@@ -56,8 +56,7 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset,
 		unmap = dmaengine_get_unmap_data(device->dev, 2, GFP_NOIO);
 
 	if (unmap && is_dma_copy_aligned(device, src_offset, dest_offset, len)) {
-		unsigned long dma_prep_flags = DMA_COMPL_SKIP_SRC_UNMAP |
-					       DMA_COMPL_SKIP_DEST_UNMAP;
+		unsigned long dma_prep_flags = 0;
 
 		if (submit->cb_fn)
 			dma_prep_flags |= DMA_PREP_INTERRUPT;
diff --git a/crypto/async_tx/async_pq.c b/crypto/async_tx/async_pq.c
index 4126b56fbc01..d05327caf69d 100644
--- a/crypto/async_tx/async_pq.c
+++ b/crypto/async_tx/async_pq.c
@@ -62,7 +62,6 @@ do_async_gen_syndrome(struct dma_chan *chan,
 	dma_addr_t dma_dest[2];
 	int src_off = 0;
 
-	dma_flags |= DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP;
 	if (submit->flags & ASYNC_TX_FENCE)
 		dma_flags |= DMA_PREP_FENCE;
 
diff --git a/crypto/async_tx/async_raid6_recov.c b/crypto/async_tx/async_raid6_recov.c
index a3a72a784421..934a84981495 100644
--- a/crypto/async_tx/async_raid6_recov.c
+++ b/crypto/async_tx/async_raid6_recov.c
@@ -47,9 +47,7 @@ async_sum_product(struct page *dest, struct page **srcs, unsigned char *coef,
 		struct device *dev = dma->dev;
 		dma_addr_t pq[2];
 		struct dma_async_tx_descriptor *tx;
-		enum dma_ctrl_flags dma_flags = DMA_COMPL_SKIP_SRC_UNMAP |
-						DMA_COMPL_SKIP_DEST_UNMAP |
-						DMA_PREP_PQ_DISABLE_P;
+		enum dma_ctrl_flags dma_flags = DMA_PREP_PQ_DISABLE_P;
 
 		if (submit->flags & ASYNC_TX_FENCE)
 			dma_flags |= DMA_PREP_FENCE;
@@ -113,9 +111,7 @@ async_mult(struct page *dest, struct page *src, u8 coef, size_t len,
 		dma_addr_t dma_dest[2];
 		struct device *dev = dma->dev;
 		struct dma_async_tx_descriptor *tx;
-		enum dma_ctrl_flags dma_flags = DMA_COMPL_SKIP_SRC_UNMAP |
-						DMA_COMPL_SKIP_DEST_UNMAP |
-						DMA_PREP_PQ_DISABLE_P;
+		enum dma_ctrl_flags dma_flags = DMA_PREP_PQ_DISABLE_P;
 
 		if (submit->flags & ASYNC_TX_FENCE)
 			dma_flags |= DMA_PREP_FENCE;
diff --git a/crypto/async_tx/async_xor.c b/crypto/async_tx/async_xor.c
index d2cc77d501c7..3c562f5a60bb 100644
--- a/crypto/async_tx/async_xor.c
+++ b/crypto/async_tx/async_xor.c
@@ -41,7 +41,7 @@ do_async_xor(struct dma_chan *chan, struct dmaengine_unmap_data *unmap,
 	dma_async_tx_callback cb_fn_orig = submit->cb_fn;
 	void *cb_param_orig = submit->cb_param;
 	enum async_tx_flags flags_orig = submit->flags;
-	enum dma_ctrl_flags dma_flags;
+	enum dma_ctrl_flags dma_flags = 0;
 	int src_cnt = unmap->to_cnt;
 	int xor_src_cnt;
 	dma_addr_t dma_dest = unmap->addr[unmap->to_cnt];
@@ -55,7 +55,6 @@ do_async_xor(struct dma_chan *chan, struct dmaengine_unmap_data *unmap,
 		/* if we are submitting additional xors, leave the chain open
 		 * and clear the callback parameters
 		 */
-		dma_flags = DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP;
 		if (src_cnt > xor_src_cnt) {
 			submit->flags &= ~ASYNC_TX_ACK;
 			submit->flags |= ASYNC_TX_FENCE;
@@ -284,8 +283,7 @@ async_xor_val(struct page *dest, struct page **src_list, unsigned int offset,
 
 	if (unmap && src_cnt <= device->max_xor &&
 	    is_dma_xor_aligned(device, offset, 0, len)) {
-		unsigned long dma_prep_flags = DMA_COMPL_SKIP_SRC_UNMAP |
-					       DMA_COMPL_SKIP_DEST_UNMAP;
+		unsigned long dma_prep_flags = 0;
 		int i;
 
 		pr_debug("%s: (async) len: %zu\n", __func__, len);
diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
index 853f610af28f..e88690ebfd82 100644
--- a/drivers/ata/pata_arasan_cf.c
+++ b/drivers/ata/pata_arasan_cf.c
@@ -396,8 +396,7 @@ dma_xfer(struct arasan_cf_dev *acdev, dma_addr_t src, dma_addr_t dest, u32 len)
 	struct dma_async_tx_descriptor *tx;
 	struct dma_chan *chan = acdev->dma_chan;
 	dma_cookie_t cookie;
-	unsigned long flags = DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_SRC_UNMAP |
-		DMA_COMPL_SKIP_DEST_UNMAP;
+	unsigned long flags = DMA_PREP_INTERRUPT;
 	int ret = 0;
 
 	tx = chan->device->device_prep_dma_memcpy(chan, dest, src, len, flags);
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index f878c808466e..b69ac3892b86 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -1065,8 +1065,7 @@ dma_async_memcpy_pg_to_pg(struct dma_chan *chan, struct page *dest_pg,
 	unmap->addr[1] = dma_map_page(dev->dev, dest_pg, dest_off, len,
 				      DMA_FROM_DEVICE);
 	unmap->len = len;
-	flags = DMA_CTRL_ACK | DMA_COMPL_SKIP_SRC_UNMAP |
-		DMA_COMPL_SKIP_DEST_UNMAP;
+	flags = DMA_CTRL_ACK;
 	tx = dev->device_prep_dma_memcpy(chan, unmap->addr[1], unmap->addr[0],
 					 len, flags);
 
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index f4a2a25fae31..5791091c13ca 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -599,8 +599,7 @@ static int dmatest_func(void *data)
 	/*
 	 * src and dst buffers are freed by ourselves below
 	 */
-	flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT |
-		DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP;
+	flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT;
 
 	while (!kthread_should_stop()
 	       && !(params->iterations && total_tests >= params->iterations)) {
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index c123e32dbbb0..6fcf741ad91b 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -818,8 +818,7 @@ int ioat_dma_self_test(struct ioatdma_device *device)
 
 	dma_src = dma_map_single(dev, src, IOAT_TEST_SIZE, DMA_TO_DEVICE);
 	dma_dest = dma_map_single(dev, dest, IOAT_TEST_SIZE, DMA_FROM_DEVICE);
-	flags = DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP |
-		DMA_PREP_INTERRUPT;
+	flags = DMA_PREP_INTERRUPT;
 	tx = device->common.device_prep_dma_memcpy(dma_chan, dma_dest, dma_src,
 						   IOAT_TEST_SIZE, flags);
 	if (!tx) {
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index 43386c171bba..a4798f0cc225 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -1279,9 +1279,7 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
 					   DMA_TO_DEVICE);
 	tx = dma->device_prep_dma_xor(dma_chan, dest_dma, dma_srcs,
 				      IOAT_NUM_SRC_TEST, PAGE_SIZE,
-				      DMA_PREP_INTERRUPT |
-				      DMA_COMPL_SKIP_SRC_UNMAP |
-				      DMA_COMPL_SKIP_DEST_UNMAP);
+				      DMA_PREP_INTERRUPT);
 
 	if (!tx) {
 		dev_err(dev, "Self-test xor prep failed\n");
@@ -1342,9 +1340,7 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
 					   DMA_TO_DEVICE);
 	tx = dma->device_prep_dma_xor_val(dma_chan, dma_srcs,
 					  IOAT_NUM_SRC_TEST + 1, PAGE_SIZE,
-					  &xor_val_result, DMA_PREP_INTERRUPT |
-					  DMA_COMPL_SKIP_SRC_UNMAP |
-					  DMA_COMPL_SKIP_DEST_UNMAP);
+					  &xor_val_result, DMA_PREP_INTERRUPT);
 	if (!tx) {
 		dev_err(dev, "Self-test zero prep failed\n");
 		err = -ENODEV;
@@ -1389,9 +1385,7 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
 					   DMA_TO_DEVICE);
 	tx = dma->device_prep_dma_xor_val(dma_chan, dma_srcs,
 					  IOAT_NUM_SRC_TEST + 1, PAGE_SIZE,
-					  &xor_val_result, DMA_PREP_INTERRUPT |
-					  DMA_COMPL_SKIP_SRC_UNMAP |
-					  DMA_COMPL_SKIP_DEST_UNMAP);
+					  &xor_val_result, DMA_PREP_INTERRUPT);
 	if (!tx) {
 		dev_err(dev, "Self-test 2nd zero prep failed\n");
 		err = -ENODEV;
diff --git a/drivers/media/platform/m2m-deinterlace.c b/drivers/media/platform/m2m-deinterlace.c
index 540516ca872c..879ea6fdd1be 100644
--- a/drivers/media/platform/m2m-deinterlace.c
+++ b/drivers/media/platform/m2m-deinterlace.c
@@ -341,8 +341,7 @@ static void deinterlace_issue_dma(struct deinterlace_ctx *ctx, int op,
 	ctx->xt->dir = DMA_MEM_TO_MEM;
 	ctx->xt->src_sgl = false;
 	ctx->xt->dst_sgl = true;
-	flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT |
-		DMA_COMPL_SKIP_DEST_UNMAP | DMA_COMPL_SKIP_SRC_UNMAP;
+	flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT;
 
 	tx = dmadev->device_prep_interleaved_dma(chan, ctx->xt, flags);
 	if (tx == NULL) {
diff --git a/drivers/media/platform/timblogiw.c b/drivers/media/platform/timblogiw.c
index b557caf5b1a4..59a95e3ab0e3 100644
--- a/drivers/media/platform/timblogiw.c
+++ b/drivers/media/platform/timblogiw.c
@@ -565,7 +565,7 @@ static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
 
 	desc = dmaengine_prep_slave_sg(fh->chan,
 		buf->sg, sg_elems, DMA_DEV_TO_MEM,
-		DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_SRC_UNMAP);
+		DMA_PREP_INTERRUPT);
 	if (!desc) {
 		spin_lock_irq(&fh->queue_lock);
 		list_del_init(&vb->queue);
diff --git a/drivers/misc/carma/carma-fpga.c b/drivers/misc/carma/carma-fpga.c
index 7b56563f8b74..5335104e7c84 100644
--- a/drivers/misc/carma/carma-fpga.c
+++ b/drivers/misc/carma/carma-fpga.c
@@ -631,8 +631,7 @@ static int data_submit_dma(struct fpga_device *priv, struct data_buf *buf)
 	struct dma_async_tx_descriptor *tx;
 	dma_cookie_t cookie;
 	dma_addr_t dst, src;
-	unsigned long dma_flags = DMA_COMPL_SKIP_DEST_UNMAP |
-				  DMA_COMPL_SKIP_SRC_UNMAP;
+	unsigned long dma_flags = 0;
 
 	dst_sg = buf->vb.sglist;
 	dst_nents = buf->vb.sglen;
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 060feeaf6b3e..2a837cb425d7 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -375,8 +375,7 @@ static int atmel_nand_dma_op(struct mtd_info *mtd, void *buf, int len,
 
 	dma_dev = host->dma_chan->device;
 
-	flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_SRC_UNMAP |
-		DMA_COMPL_SKIP_DEST_UNMAP;
+	flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT;
 
 	phys_addr = dma_map_single(dma_dev->dev, p, len, dir);
 	if (dma_mapping_error(dma_dev->dev, phys_addr)) {
diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c
index 3dc1a7564d87..8b2752263db9 100644
--- a/drivers/mtd/nand/fsmc_nand.c
+++ b/drivers/mtd/nand/fsmc_nand.c
@@ -573,8 +573,6 @@ static int dma_xfer(struct fsmc_nand_data *host, void *buffer, int len,
 	dma_dev = chan->device;
 	dma_addr = dma_map_single(dma_dev->dev, buffer, len, direction);
 
-	flags |= DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP;
-
 	if (direction == DMA_TO_DEVICE) {
 		dma_src = dma_addr;
 		dma_dst = host->data_pa;
diff --git a/drivers/net/ethernet/micrel/ks8842.c b/drivers/net/ethernet/micrel/ks8842.c
index 0951f7aca1ef..822616e3c375 100644
--- a/drivers/net/ethernet/micrel/ks8842.c
+++ b/drivers/net/ethernet/micrel/ks8842.c
@@ -459,8 +459,7 @@ static int ks8842_tx_frame_dma(struct sk_buff *skb, struct net_device *netdev)
 		sg_dma_len(&ctl->sg) += 4 - sg_dma_len(&ctl->sg) % 4;
 
 	ctl->adesc = dmaengine_prep_slave_sg(ctl->chan,
-		&ctl->sg, 1, DMA_MEM_TO_DEV,
-		DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_SRC_UNMAP);
+		&ctl->sg, 1, DMA_MEM_TO_DEV, DMA_PREP_INTERRUPT);
 	if (!ctl->adesc)
 		return NETDEV_TX_BUSY;
 
@@ -571,8 +570,7 @@ static int __ks8842_start_new_rx_dma(struct net_device *netdev)
 		sg_dma_len(sg) = DMA_BUFFER_SIZE;
 
 		ctl->adesc = dmaengine_prep_slave_sg(ctl->chan,
-			sg, 1, DMA_DEV_TO_MEM,
-			DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_SRC_UNMAP);
+			sg, 1, DMA_DEV_TO_MEM, DMA_PREP_INTERRUPT);
 
 		if (!ctl->adesc)
 			goto out;
diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index 222c2baa3a4b..d0222f13d154 100644
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -1037,7 +1037,6 @@ static void ntb_async_rx(struct ntb_queue_entry *entry, void *offset,
 	struct dmaengine_unmap_data *unmap;
 	dma_cookie_t cookie;
 	void *buf = entry->buf;
-	unsigned long flags;
 
 	entry->len = len;
 
@@ -1073,10 +1072,9 @@ static void ntb_async_rx(struct ntb_queue_entry *entry, void *offset,
 
 	unmap->from_cnt = 1;
 
-	flags = DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP |
-		DMA_PREP_INTERRUPT;
 	txd = device->device_prep_dma_memcpy(chan, unmap->addr[1],
-					     unmap->addr[0], len, flags);
+					     unmap->addr[0], len,
+					     DMA_PREP_INTERRUPT);
 	if (!txd)
 		goto err_get_unmap;
 
@@ -1266,7 +1264,6 @@ static void ntb_async_tx(struct ntb_transport_qp *qp,
 	void __iomem *offset;
 	size_t len = entry->len;
 	void *buf = entry->buf;
-	unsigned long flags;
 
 	offset = qp->tx_mw + qp->tx_max_frame * qp->tx_index;
 	hdr = offset + qp->tx_max_frame - sizeof(struct ntb_payload_header);
@@ -1301,10 +1298,8 @@ static void ntb_async_tx(struct ntb_transport_qp *qp,
 
 	unmap->to_cnt = 1;
 
-	flags = DMA_COMPL_SKIP_SRC_UNMAP | DMA_COMPL_SKIP_DEST_UNMAP |
-		DMA_PREP_INTERRUPT;
 	txd = device->device_prep_dma_memcpy(chan, dest, unmap->addr[0], len,
-					    flags);
+					     DMA_PREP_INTERRUPT);
 	if (!txd)
 		goto err_get_unmap;
 
diff --git a/drivers/spi/spi-dw-mid.c b/drivers/spi/spi-dw-mid.c
index b9f0192758d6..6d207afec8cb 100644
--- a/drivers/spi/spi-dw-mid.c
+++ b/drivers/spi/spi-dw-mid.c
@@ -150,7 +150,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change)
 				&dws->tx_sgl,
 				1,
 				DMA_MEM_TO_DEV,
-				DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_DEST_UNMAP);
+				DMA_PREP_INTERRUPT);
 	txdesc->callback = dw_spi_dma_done;
 	txdesc->callback_param = dws;
 
@@ -173,7 +173,7 @@ static int mid_spi_dma_transfer(struct dw_spi *dws, int cs_change)
 				&dws->rx_sgl,
 				1,
 				DMA_DEV_TO_MEM,
-				DMA_PREP_INTERRUPT | DMA_COMPL_SKIP_DEST_UNMAP);
+				DMA_PREP_INTERRUPT);
 	rxdesc->callback = dw_spi_dma_done;
 	rxdesc->callback_param = dws;
 
diff --git a/include/linux/dmaengine.h b/include/linux/dmaengine.h
index 3782cdb782a8..491072cb5ba0 100644
--- a/include/linux/dmaengine.h
+++ b/include/linux/dmaengine.h
@@ -171,12 +171,6 @@ struct dma_interleaved_template {
  * @DMA_CTRL_ACK - if clear, the descriptor cannot be reused until the client
  *  acknowledges receipt, i.e. has has a chance to establish any dependency
  *  chains
- * @DMA_COMPL_SKIP_SRC_UNMAP - set to disable dma-unmapping the source buffer(s)
- * @DMA_COMPL_SKIP_DEST_UNMAP - set to disable dma-unmapping the destination(s)
- * @DMA_COMPL_SRC_UNMAP_SINGLE - set to do the source dma-unmapping as single
- * 	(if not set, do the source dma-unmapping as page)
- * @DMA_COMPL_DEST_UNMAP_SINGLE - set to do the destination dma-unmapping as single
- * 	(if not set, do the destination dma-unmapping as page)
  * @DMA_PREP_PQ_DISABLE_P - prevent generation of P while generating Q
  * @DMA_PREP_PQ_DISABLE_Q - prevent generation of Q while generating P
  * @DMA_PREP_CONTINUE - indicate to a driver that it is reusing buffers as
@@ -188,14 +182,10 @@ struct dma_interleaved_template {
 enum dma_ctrl_flags {
 	DMA_PREP_INTERRUPT = (1 << 0),
 	DMA_CTRL_ACK = (1 << 1),
-	DMA_COMPL_SKIP_SRC_UNMAP = (1 << 2),
-	DMA_COMPL_SKIP_DEST_UNMAP = (1 << 3),
-	DMA_COMPL_SRC_UNMAP_SINGLE = (1 << 4),
-	DMA_COMPL_DEST_UNMAP_SINGLE = (1 << 5),
-	DMA_PREP_PQ_DISABLE_P = (1 << 6),
-	DMA_PREP_PQ_DISABLE_Q = (1 << 7),
-	DMA_PREP_CONTINUE = (1 << 8),
-	DMA_PREP_FENCE = (1 << 9),
+	DMA_PREP_PQ_DISABLE_P = (1 << 2),
+	DMA_PREP_PQ_DISABLE_Q = (1 << 3),
+	DMA_PREP_CONTINUE = (1 << 4),
+	DMA_PREP_FENCE = (1 << 5),
 };
 
 /**
-- 
cgit 


From 7b61017822cdff9c18ae70005cf52d84e8dafe5d Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 6 Nov 2013 16:29:57 -0800
Subject: Revert "dmatest: append verify result to results"

This reverts commit d86b2f298e6de124984f5d5817ed1e6e759b3ada.

The kernel log buffer is sufficient for collecting test results.  The
current logging OOMs the machine on long running tests, and usually only
the first error is relevant.  It is better to stop on error and parse
the kernel output.  If output volume becomes an issue we can always
investigate using trace messages.

Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 Documentation/dmatest.txt |   6 +-
 drivers/dma/dmatest.c     | 180 +++++++++++++---------------------------------
 2 files changed, 53 insertions(+), 133 deletions(-)

diff --git a/Documentation/dmatest.txt b/Documentation/dmatest.txt
index a2b5663eae26..8b7a5c879df9 100644
--- a/Documentation/dmatest.txt
+++ b/Documentation/dmatest.txt
@@ -76,7 +76,5 @@ The message format is unified across the different types of errors. A number in
 the parens represents additional information, e.g. error code, error counter,
 or status.
 
-Comparison between buffers is stored to the dedicated structure.
-
-Note that the verify result is now accessible only via file 'results' in the
-debugfs.
+Note that the buffer comparison is done in the old way, i.e. data is not
+collected and just printed out.
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index 5791091c13ca..dcb38d86550e 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -98,20 +98,6 @@ enum dmatest_error_type {
 	DMATEST_ET_DMA_ERROR,
 	DMATEST_ET_DMA_IN_PROGRESS,
 	DMATEST_ET_VERIFY,
-	DMATEST_ET_VERIFY_BUF,
-};
-
-struct dmatest_verify_buffer {
-	unsigned int	index;
-	u8		expected;
-	u8		actual;
-};
-
-struct dmatest_verify_result {
-	unsigned int			error_count;
-	struct dmatest_verify_buffer	data[MAX_ERROR_COUNT];
-	u8				pattern;
-	bool				is_srcbuf;
 };
 
 struct dmatest_thread_result {
@@ -122,11 +108,10 @@ struct dmatest_thread_result {
 	unsigned int		len;
 	enum dmatest_error_type	type;
 	union {
-		unsigned long			data;
-		dma_cookie_t			cookie;
-		enum dma_status			status;
-		int				error;
-		struct dmatest_verify_result	*vr;
+		unsigned long		data;
+		dma_cookie_t		cookie;
+		enum dma_status		status;
+		int			error;
 	};
 };
 
@@ -262,9 +247,31 @@ static void dmatest_init_dsts(u8 **bufs, unsigned int start, unsigned int len,
 	}
 }
 
-static unsigned int dmatest_verify(struct dmatest_verify_result *vr, u8 **bufs,
-		unsigned int start, unsigned int end, unsigned int counter,
-		u8 pattern, bool is_srcbuf)
+static void dmatest_mismatch(u8 actual, u8 pattern, unsigned int index,
+		unsigned int counter, bool is_srcbuf)
+{
+	u8		diff = actual ^ pattern;
+	u8		expected = pattern | (~counter & PATTERN_COUNT_MASK);
+	const char	*thread_name = current->comm;
+
+	if (is_srcbuf)
+		pr_warn("%s: srcbuf[0x%x] overwritten! Expected %02x, got %02x\n",
+			thread_name, index, expected, actual);
+	else if ((pattern & PATTERN_COPY)
+			&& (diff & (PATTERN_COPY | PATTERN_OVERWRITE)))
+		pr_warn("%s: dstbuf[0x%x] not copied! Expected %02x, got %02x\n",
+			thread_name, index, expected, actual);
+	else if (diff & PATTERN_SRC)
+		pr_warn("%s: dstbuf[0x%x] was copied! Expected %02x, got %02x\n",
+			thread_name, index, expected, actual);
+	else
+		pr_warn("%s: dstbuf[0x%x] mismatch! Expected %02x, got %02x\n",
+			thread_name, index, expected, actual);
+}
+
+static unsigned int dmatest_verify(u8 **bufs, unsigned int start,
+		unsigned int end, unsigned int counter, u8 pattern,
+		bool is_srcbuf)
 {
 	unsigned int i;
 	unsigned int error_count = 0;
@@ -272,7 +279,6 @@ static unsigned int dmatest_verify(struct dmatest_verify_result *vr, u8 **bufs,
 	u8 expected;
 	u8 *buf;
 	unsigned int counter_orig = counter;
-	struct dmatest_verify_buffer *vb;
 
 	for (; (buf = *bufs); bufs++) {
 		counter = counter_orig;
@@ -280,12 +286,9 @@ static unsigned int dmatest_verify(struct dmatest_verify_result *vr, u8 **bufs,
 			actual = buf[i];
 			expected = pattern | (~counter & PATTERN_COUNT_MASK);
 			if (actual != expected) {
-				if (error_count < MAX_ERROR_COUNT && vr) {
-					vb = &vr->data[error_count];
-					vb->index = i;
-					vb->expected = expected;
-					vb->actual = actual;
-				}
+				if (error_count < MAX_ERROR_COUNT)
+					dmatest_mismatch(actual, pattern, i,
+							 counter, is_srcbuf);
 				error_count++;
 			}
 			counter++;
@@ -293,7 +296,7 @@ static unsigned int dmatest_verify(struct dmatest_verify_result *vr, u8 **bufs,
 	}
 
 	if (error_count > MAX_ERROR_COUNT)
-		pr_warning("%s: %u errors suppressed\n",
+		pr_warn("%s: %u errors suppressed\n",
 			current->comm, error_count - MAX_ERROR_COUNT);
 
 	return error_count;
@@ -334,30 +337,6 @@ static unsigned int min_odd(unsigned int x, unsigned int y)
 	return val % 2 ? val : val - 1;
 }
 
-static char *verify_result_get_one(struct dmatest_verify_result *vr,
-		unsigned int i)
-{
-	struct dmatest_verify_buffer *vb = &vr->data[i];
-	u8 diff = vb->actual ^ vr->pattern;
-	static char buf[512];
-	char *msg;
-
-	if (vr->is_srcbuf)
-		msg = "srcbuf overwritten!";
-	else if ((vr->pattern & PATTERN_COPY)
-			&& (diff & (PATTERN_COPY | PATTERN_OVERWRITE)))
-		msg = "dstbuf not copied!";
-	else if (diff & PATTERN_SRC)
-		msg = "dstbuf was copied!";
-	else
-		msg = "dstbuf mismatch!";
-
-	snprintf(buf, sizeof(buf) - 1, "%s [0x%x] Expected %02x, got %02x", msg,
-		 vb->index, vb->expected, vb->actual);
-
-	return buf;
-}
-
 static char *thread_result_get(const char *name,
 		struct dmatest_thread_result *tr)
 {
@@ -373,7 +352,6 @@ static char *thread_result_get(const char *name,
 		[DMATEST_ET_DMA_IN_PROGRESS]	=
 			"got completion callback (DMA_IN_PROGRESS)",
 		[DMATEST_ET_VERIFY]		= "errors",
-		[DMATEST_ET_VERIFY_BUF]		= "verify errors",
 	};
 	static char buf[512];
 
@@ -415,51 +393,6 @@ static int thread_result_add(struct dmatest_info *info,
 	return 0;
 }
 
-static unsigned int verify_result_add(struct dmatest_info *info,
-		struct dmatest_result *r, unsigned int n,
-		unsigned int src_off, unsigned int dst_off, unsigned int len,
-		u8 **bufs, int whence, unsigned int counter, u8 pattern,
-		bool is_srcbuf)
-{
-	struct dmatest_verify_result *vr;
-	unsigned int error_count;
-	unsigned int buf_off = is_srcbuf ? src_off : dst_off;
-	unsigned int start, end;
-
-	if (whence < 0) {
-		start = 0;
-		end = buf_off;
-	} else if (whence > 0) {
-		start = buf_off + len;
-		end = info->params.buf_size;
-	} else {
-		start = buf_off;
-		end = buf_off + len;
-	}
-
-	vr = kmalloc(sizeof(*vr), GFP_KERNEL);
-	if (!vr) {
-		pr_warn("dmatest: No memory to store verify result\n");
-		return dmatest_verify(NULL, bufs, start, end, counter, pattern,
-				      is_srcbuf);
-	}
-
-	vr->pattern = pattern;
-	vr->is_srcbuf = is_srcbuf;
-
-	error_count = dmatest_verify(vr, bufs, start, end, counter, pattern,
-				     is_srcbuf);
-	if (error_count) {
-		vr->error_count = error_count;
-		thread_result_add(info, r, DMATEST_ET_VERIFY_BUF, n, src_off,
-				  dst_off, len, (unsigned long)vr);
-		return error_count;
-	}
-
-	kfree(vr);
-	return 0;
-}
-
 static void result_free(struct dmatest_info *info, const char *name)
 {
 	struct dmatest_result *r, *_r;
@@ -472,8 +405,6 @@ static void result_free(struct dmatest_info *info, const char *name)
 			continue;
 
 		list_for_each_entry_safe(tr, _tr, &r->results, node) {
-			if (tr->type == DMATEST_ET_VERIFY_BUF)
-				kfree(tr->vr);
 			list_del(&tr->node);
 			kfree(tr);
 		}
@@ -755,26 +686,25 @@ static int dmatest_func(void *data)
 		error_count = 0;
 
 		pr_debug("%s: verifying source buffer...\n", thread_name);
-		error_count += verify_result_add(info, result, total_tests,
-				src_off, dst_off, len, thread->srcs, -1,
+		error_count += dmatest_verify(thread->srcs, 0, src_off,
 				0, PATTERN_SRC, true);
-		error_count += verify_result_add(info, result, total_tests,
-				src_off, dst_off, len, thread->srcs, 0,
-				src_off, PATTERN_SRC | PATTERN_COPY, true);
-		error_count += verify_result_add(info, result, total_tests,
-				src_off, dst_off, len, thread->srcs, 1,
-				src_off + len, PATTERN_SRC, true);
-
-		pr_debug("%s: verifying dest buffer...\n", thread_name);
-		error_count += verify_result_add(info, result, total_tests,
-				src_off, dst_off, len, thread->dsts, -1,
+		error_count += dmatest_verify(thread->srcs, src_off,
+				src_off + len, src_off,
+				PATTERN_SRC | PATTERN_COPY, true);
+		error_count += dmatest_verify(thread->srcs, src_off + len,
+				params->buf_size, src_off + len,
+				PATTERN_SRC, true);
+
+		pr_debug("%s: verifying dest buffer...\n",
+				thread->task->comm);
+		error_count += dmatest_verify(thread->dsts, 0, dst_off,
 				0, PATTERN_DST, false);
-		error_count += verify_result_add(info, result, total_tests,
-				src_off, dst_off, len, thread->dsts, 0,
-				src_off, PATTERN_SRC | PATTERN_COPY, false);
-		error_count += verify_result_add(info, result, total_tests,
-				src_off, dst_off, len, thread->dsts, 1,
-				dst_off + len, PATTERN_DST, false);
+		error_count += dmatest_verify(thread->dsts, dst_off,
+				dst_off + len, src_off,
+				PATTERN_SRC | PATTERN_COPY, false);
+		error_count += dmatest_verify(thread->dsts, dst_off + len,
+				params->buf_size, dst_off + len,
+				PATTERN_DST, false);
 
 		if (error_count) {
 			thread_result_add(info, result, DMATEST_ET_VERIFY,
@@ -1099,20 +1029,12 @@ static int dtf_results_show(struct seq_file *sf, void *data)
 	struct dmatest_info *info = sf->private;
 	struct dmatest_result *result;
 	struct dmatest_thread_result *tr;
-	unsigned int i;
 
 	mutex_lock(&info->results_lock);
 	list_for_each_entry(result, &info->results, node) {
-		list_for_each_entry(tr, &result->results, node) {
+		list_for_each_entry(tr, &result->results, node)
 			seq_printf(sf, "%s\n",
 				thread_result_get(result->name, tr));
-			if (tr->type == DMATEST_ET_VERIFY_BUF) {
-				for (i = 0; i < tr->vr->error_count; i++) {
-					seq_printf(sf, "\t%s\n",
-						verify_result_get_one(tr->vr, i));
-				}
-			}
-		}
 	}
 
 	mutex_unlock(&info->results_lock);
-- 
cgit 


From 872f05c6e9a37e9358fd58eb54deee7337863496 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 6 Nov 2013 16:29:58 -0800
Subject: dmatest: replace stored results mechanism, with uniform messages

For long running tests the tracking results in a memory leak for the "ok"
results, and for the failures the kernel log should be sufficient.  Provide a
uniform format for error messages so they can be easily parsed and remove the
debugfs file.

Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 Documentation/dmatest.txt |  27 +++---
 drivers/dma/dmatest.c     | 240 +++++++---------------------------------------
 2 files changed, 46 insertions(+), 221 deletions(-)

diff --git a/Documentation/dmatest.txt b/Documentation/dmatest.txt
index 8b7a5c879df9..45b8c95f1a21 100644
--- a/Documentation/dmatest.txt
+++ b/Documentation/dmatest.txt
@@ -16,9 +16,8 @@ be built as module or inside kernel. Let's consider those cases.
 	Part 2 - When dmatest is built as a module...
 
 After mounting debugfs and loading the module, the /sys/kernel/debug/dmatest
-folder with nodes will be created. There are two important files located. First
-is the 'run' node that controls run and stop phases of the test, and the second
-one, 'results', is used to get the test case results.
+folder with a file named 'run' nodes will be created.  'run' controls run and
+stop phases of the test.
 
 Note that in this case test will not run on load automatically.
 
@@ -32,8 +31,9 @@ Hint: available channel list could be extracted by running the following
 command:
 	% ls -1 /sys/class/dma/
 
-After a while you will start to get messages about current status or error like
-in the original code.
+Once started a message like "dmatest: Started 1 threads using dma0chan0" is
+emitted.  After that only test failure messages are reported until the test
+stops.
 
 Note that running a new test will not stop any in progress test.
 
@@ -62,19 +62,18 @@ case. You always could check them at run-time by running
 
 	Part 4 - Gathering the test results
 
-The module provides a storage for the test results in the memory. The gathered
-data could be used after test is done.
+Test results are printed to the kernel log buffer with the format:
 
-The special file 'results' in the debugfs represents gathered data of the in
-progress test. The messages collected are printed to the kernel log as well.
+"dmatest: result <channel>: <test id>: '<error msg>' with src_off=<val> dst_off=<val> len=<val> (<err code>)"
 
 Example of output:
-	% cat /sys/kernel/debug/dmatest/results
-	dma0chan0-copy0: #1: No errors with src_off=0x7bf dst_off=0x8ad len=0x3fea (0)
+	% dmesg | tail -n 1
+	dmatest: result dma0chan0-copy0: #1: No errors with src_off=0x7bf dst_off=0x8ad len=0x3fea (0)
 
 The message format is unified across the different types of errors. A number in
 the parens represents additional information, e.g. error code, error counter,
-or status.
+or status.  A test thread also emits a summary line at completion listing the
+number of tests executed, number that failed, and a result code.
 
-Note that the buffer comparison is done in the old way, i.e. data is not
-collected and just printed out.
+The details of a data miscompare error are also emitted, but do not follow the
+above format.
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index dcb38d86550e..58b195f9d03c 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -8,6 +8,8 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/dmaengine.h>
@@ -88,39 +90,6 @@ MODULE_PARM_DESC(timeout, "Transfer Timeout in msec (default: 3000), "
 #define PATTERN_OVERWRITE	0x20
 #define PATTERN_COUNT_MASK	0x1f
 
-enum dmatest_error_type {
-	DMATEST_ET_OK,
-	DMATEST_ET_MAP_SRC,
-	DMATEST_ET_MAP_DST,
-	DMATEST_ET_PREP,
-	DMATEST_ET_SUBMIT,
-	DMATEST_ET_TIMEOUT,
-	DMATEST_ET_DMA_ERROR,
-	DMATEST_ET_DMA_IN_PROGRESS,
-	DMATEST_ET_VERIFY,
-};
-
-struct dmatest_thread_result {
-	struct list_head	node;
-	unsigned int		n;
-	unsigned int		src_off;
-	unsigned int		dst_off;
-	unsigned int		len;
-	enum dmatest_error_type	type;
-	union {
-		unsigned long		data;
-		dma_cookie_t		cookie;
-		enum dma_status		status;
-		int			error;
-	};
-};
-
-struct dmatest_result {
-	struct list_head	node;
-	char			*name;
-	struct list_head	results;
-};
-
 struct dmatest_info;
 
 struct dmatest_thread {
@@ -180,10 +149,6 @@ struct dmatest_info {
 
 	/* debugfs related stuff */
 	struct dentry		*root;
-
-	/* Test results */
-	struct list_head	results;
-	struct mutex		results_lock;
 };
 
 static struct dmatest_info test_info;
@@ -337,100 +302,19 @@ static unsigned int min_odd(unsigned int x, unsigned int y)
 	return val % 2 ? val : val - 1;
 }
 
-static char *thread_result_get(const char *name,
-		struct dmatest_thread_result *tr)
+static void result(const char *err, unsigned int n, unsigned int src_off,
+		   unsigned int dst_off, unsigned int len, unsigned long data)
 {
-	static const char * const messages[] = {
-		[DMATEST_ET_OK]			= "No errors",
-		[DMATEST_ET_MAP_SRC]		= "src mapping error",
-		[DMATEST_ET_MAP_DST]		= "dst mapping error",
-		[DMATEST_ET_PREP]		= "prep error",
-		[DMATEST_ET_SUBMIT]		= "submit error",
-		[DMATEST_ET_TIMEOUT]		= "test timed out",
-		[DMATEST_ET_DMA_ERROR]		=
-			"got completion callback (DMA_ERROR)",
-		[DMATEST_ET_DMA_IN_PROGRESS]	=
-			"got completion callback (DMA_IN_PROGRESS)",
-		[DMATEST_ET_VERIFY]		= "errors",
-	};
-	static char buf[512];
-
-	snprintf(buf, sizeof(buf) - 1,
-		 "%s: #%u: %s with src_off=0x%x ""dst_off=0x%x len=0x%x (%lu)",
-		 name, tr->n, messages[tr->type], tr->src_off, tr->dst_off,
-		 tr->len, tr->data);
-
-	return buf;
+	pr_info("%s: result #%u: '%s' with src_off=0x%x ""dst_off=0x%x len=0x%x (%lu)",
+		current->comm, n, err, src_off, dst_off, len, data);
 }
 
-static int thread_result_add(struct dmatest_info *info,
-		struct dmatest_result *r, enum dmatest_error_type type,
-		unsigned int n, unsigned int src_off, unsigned int dst_off,
-		unsigned int len, unsigned long data)
+static void dbg_result(const char *err, unsigned int n, unsigned int src_off,
+		       unsigned int dst_off, unsigned int len,
+		       unsigned long data)
 {
-	struct dmatest_thread_result *tr;
-
-	tr = kzalloc(sizeof(*tr), GFP_KERNEL);
-	if (!tr)
-		return -ENOMEM;
-
-	tr->type = type;
-	tr->n = n;
-	tr->src_off = src_off;
-	tr->dst_off = dst_off;
-	tr->len = len;
-	tr->data = data;
-
-	mutex_lock(&info->results_lock);
-	list_add_tail(&tr->node, &r->results);
-	mutex_unlock(&info->results_lock);
-
-	if (tr->type == DMATEST_ET_OK)
-		pr_debug("%s\n", thread_result_get(r->name, tr));
-	else
-		pr_warn("%s\n", thread_result_get(r->name, tr));
-
-	return 0;
-}
-
-static void result_free(struct dmatest_info *info, const char *name)
-{
-	struct dmatest_result *r, *_r;
-
-	mutex_lock(&info->results_lock);
-	list_for_each_entry_safe(r, _r, &info->results, node) {
-		struct dmatest_thread_result *tr, *_tr;
-
-		if (name && strcmp(r->name, name))
-			continue;
-
-		list_for_each_entry_safe(tr, _tr, &r->results, node) {
-			list_del(&tr->node);
-			kfree(tr);
-		}
-
-		kfree(r->name);
-		list_del(&r->node);
-		kfree(r);
-	}
-
-	mutex_unlock(&info->results_lock);
-}
-
-static struct dmatest_result *result_init(struct dmatest_info *info,
-		const char *name)
-{
-	struct dmatest_result *r;
-
-	r = kzalloc(sizeof(*r), GFP_KERNEL);
-	if (r) {
-		r->name = kstrdup(name, GFP_KERNEL);
-		INIT_LIST_HEAD(&r->results);
-		mutex_lock(&info->results_lock);
-		list_add_tail(&r->node, &info->results);
-		mutex_unlock(&info->results_lock);
-	}
-	return r;
+	pr_debug("%s: result #%u: '%s' with src_off=0x%x ""dst_off=0x%x len=0x%x (%lu)",
+		 current->comm, n, err, src_off, dst_off, len, data);
 }
 
 /*
@@ -456,7 +340,6 @@ static int dmatest_func(void *data)
 	struct dmatest_params	*params;
 	struct dma_chan		*chan;
 	struct dma_device	*dev;
-	const char		*thread_name;
 	unsigned int		src_off, dst_off, len;
 	unsigned int		error_count;
 	unsigned int		failed_tests = 0;
@@ -469,9 +352,7 @@ static int dmatest_func(void *data)
 	int			src_cnt;
 	int			dst_cnt;
 	int			i;
-	struct dmatest_result	*result;
 
-	thread_name = current->comm;
 	set_freezable();
 
 	ret = -ENOMEM;
@@ -501,10 +382,6 @@ static int dmatest_func(void *data)
 	} else
 		goto err_thread_type;
 
-	result = result_init(info, thread_name);
-	if (!result)
-		goto err_srcs;
-
 	thread->srcs = kcalloc(src_cnt+1, sizeof(u8 *), GFP_KERNEL);
 	if (!thread->srcs)
 		goto err_srcs;
@@ -576,10 +453,8 @@ static int dmatest_func(void *data)
 			ret = dma_mapping_error(dev->dev, dma_srcs[i]);
 			if (ret) {
 				unmap_src(dev->dev, dma_srcs, len, i);
-				thread_result_add(info, result,
-						  DMATEST_ET_MAP_SRC,
-						  total_tests, src_off, dst_off,
-						  len, ret);
+				result("src mapping error", total_tests,
+				       src_off, dst_off, len, ret);
 				failed_tests++;
 				continue;
 			}
@@ -594,10 +469,8 @@ static int dmatest_func(void *data)
 				unmap_src(dev->dev, dma_srcs, len, src_cnt);
 				unmap_dst(dev->dev, dma_dsts, params->buf_size,
 					  i);
-				thread_result_add(info, result,
-						  DMATEST_ET_MAP_DST,
-						  total_tests, src_off, dst_off,
-						  len, ret);
+				result("dst mapping error", total_tests,
+				       src_off, dst_off, len, ret);
 				failed_tests++;
 				continue;
 			}
@@ -627,9 +500,8 @@ static int dmatest_func(void *data)
 			unmap_src(dev->dev, dma_srcs, len, src_cnt);
 			unmap_dst(dev->dev, dma_dsts, params->buf_size,
 				  dst_cnt);
-			thread_result_add(info, result, DMATEST_ET_PREP,
-					  total_tests, src_off, dst_off,
-					  len, 0);
+			result("prep error", total_tests, src_off,
+			       dst_off, len, ret);
 			msleep(100);
 			failed_tests++;
 			continue;
@@ -641,9 +513,8 @@ static int dmatest_func(void *data)
 		cookie = tx->tx_submit(tx);
 
 		if (dma_submit_error(cookie)) {
-			thread_result_add(info, result, DMATEST_ET_SUBMIT,
-					  total_tests, src_off, dst_off,
-					  len, cookie);
+			result("submit error", total_tests, src_off,
+			       dst_off, len, ret);
 			msleep(100);
 			failed_tests++;
 			continue;
@@ -664,17 +535,15 @@ static int dmatest_func(void *data)
 			 * free it this time?" dancing.  For now, just
 			 * leave it dangling.
 			 */
-			thread_result_add(info, result, DMATEST_ET_TIMEOUT,
-					  total_tests, src_off, dst_off,
-					  len, 0);
+			result("test timed out", total_tests, src_off, dst_off,
+			       len, 0);
 			failed_tests++;
 			continue;
 		} else if (status != DMA_SUCCESS) {
-			enum dmatest_error_type type = (status == DMA_ERROR) ?
-				DMATEST_ET_DMA_ERROR : DMATEST_ET_DMA_IN_PROGRESS;
-			thread_result_add(info, result, type,
-					  total_tests, src_off, dst_off,
-					  len, status);
+			result(status == DMA_ERROR ?
+			       "completion error status" :
+			       "completion busy status", total_tests, src_off,
+			       dst_off, len, ret);
 			failed_tests++;
 			continue;
 		}
@@ -685,7 +554,7 @@ static int dmatest_func(void *data)
 
 		error_count = 0;
 
-		pr_debug("%s: verifying source buffer...\n", thread_name);
+		pr_debug("%s: verifying source buffer...\n", current->comm);
 		error_count += dmatest_verify(thread->srcs, 0, src_off,
 				0, PATTERN_SRC, true);
 		error_count += dmatest_verify(thread->srcs, src_off,
@@ -695,8 +564,7 @@ static int dmatest_func(void *data)
 				params->buf_size, src_off + len,
 				PATTERN_SRC, true);
 
-		pr_debug("%s: verifying dest buffer...\n",
-				thread->task->comm);
+		pr_debug("%s: verifying dest buffer...\n", current->comm);
 		error_count += dmatest_verify(thread->dsts, 0, dst_off,
 				0, PATTERN_DST, false);
 		error_count += dmatest_verify(thread->dsts, dst_off,
@@ -707,14 +575,12 @@ static int dmatest_func(void *data)
 				PATTERN_DST, false);
 
 		if (error_count) {
-			thread_result_add(info, result, DMATEST_ET_VERIFY,
-					  total_tests, src_off, dst_off,
-					  len, error_count);
+			result("data error", total_tests, src_off, dst_off,
+			       len, error_count);
 			failed_tests++;
 		} else {
-			thread_result_add(info, result, DMATEST_ET_OK,
-					  total_tests, src_off, dst_off,
-					  len, 0);
+			dbg_result("test passed", total_tests, src_off, dst_off,
+				   len, 0);
 		}
 	}
 
@@ -731,8 +597,8 @@ err_srcbuf:
 err_srcs:
 	kfree(pq_coefs);
 err_thread_type:
-	pr_notice("%s: terminating after %u tests, %u failures (status %d)\n",
-			thread_name, total_tests, failed_tests, ret);
+	pr_info("%s: terminating after %u tests, %u failures (status %d)\n",
+		current->comm, total_tests, failed_tests, ret);
 
 	/* terminate all transfers on specified channels */
 	if (ret)
@@ -937,9 +803,6 @@ static int __restart_threaded_test(struct dmatest_info *info, bool run)
 	if (run == false)
 		return 0;
 
-	/* Clear results from previous run */
-	result_free(info, NULL);
-
 	/* Copy test parameters */
 	params->buf_size = test_buf_size;
 	strlcpy(params->channel, strim(test_channel), sizeof(params->channel));
@@ -1024,35 +887,6 @@ static const struct file_operations dtf_run_fops = {
 	.llseek	= default_llseek,
 };
 
-static int dtf_results_show(struct seq_file *sf, void *data)
-{
-	struct dmatest_info *info = sf->private;
-	struct dmatest_result *result;
-	struct dmatest_thread_result *tr;
-
-	mutex_lock(&info->results_lock);
-	list_for_each_entry(result, &info->results, node) {
-		list_for_each_entry(tr, &result->results, node)
-			seq_printf(sf, "%s\n",
-				thread_result_get(result->name, tr));
-	}
-
-	mutex_unlock(&info->results_lock);
-	return 0;
-}
-
-static int dtf_results_open(struct inode *inode, struct file *file)
-{
-	return single_open(file, dtf_results_show, inode->i_private);
-}
-
-static const struct file_operations dtf_results_fops = {
-	.open		= dtf_results_open,
-	.read		= seq_read,
-	.llseek		= seq_lseek,
-	.release	= single_release,
-};
-
 static int dmatest_register_dbgfs(struct dmatest_info *info)
 {
 	struct dentry *d;
@@ -1069,10 +903,6 @@ static int dmatest_register_dbgfs(struct dmatest_info *info)
 	debugfs_create_file("run", S_IWUSR | S_IRUGO, info->root, info,
 			    &dtf_run_fops);
 
-	/* Results of test in progress */
-	debugfs_create_file("results", S_IRUGO, info->root, info,
-			    &dtf_results_fops);
-
 	return 0;
 
 err_root:
@@ -1090,9 +920,6 @@ static int __init dmatest_init(void)
 	mutex_init(&info->lock);
 	INIT_LIST_HEAD(&info->channels);
 
-	mutex_init(&info->results_lock);
-	INIT_LIST_HEAD(&info->results);
-
 	ret = dmatest_register_dbgfs(info);
 	if (ret)
 		return ret;
@@ -1112,7 +939,6 @@ static void __exit dmatest_exit(void)
 
 	debugfs_remove_recursive(info->root);
 	stop_threaded_test(info);
-	result_free(info, NULL);
 }
 module_exit(dmatest_exit);
 
-- 
cgit 


From 0adff800662f52d0ffc3e420db231769cb3fff13 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 6 Nov 2013 16:30:00 -0800
Subject: dmatest: cleanup redundant "dmatest: " prefixes

...now that we have a common pr_fmt.



Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dma/dmatest.c | 21 ++++++++++-----------
 1 file changed, 10 insertions(+), 11 deletions(-)

diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index 58b195f9d03c..15199edcc366 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -623,8 +623,8 @@ static void dmatest_cleanup_channel(struct dmatest_chan *dtc)
 
 	list_for_each_entry_safe(thread, _thread, &dtc->threads, node) {
 		ret = kthread_stop(thread->task);
-		pr_debug("dmatest: thread %s exited with status %d\n",
-				thread->task->comm, ret);
+		pr_debug("thread %s exited with status %d\n",
+			 thread->task->comm, ret);
 		list_del(&thread->node);
 		kfree(thread);
 	}
@@ -656,9 +656,8 @@ static int dmatest_add_threads(struct dmatest_info *info,
 	for (i = 0; i < params->threads_per_chan; i++) {
 		thread = kzalloc(sizeof(struct dmatest_thread), GFP_KERNEL);
 		if (!thread) {
-			pr_warning("dmatest: No memory for %s-%s%u\n",
-				   dma_chan_name(chan), op, i);
-
+			pr_warn("No memory for %s-%s%u\n",
+				dma_chan_name(chan), op, i);
 			break;
 		}
 		thread->info = info;
@@ -668,8 +667,8 @@ static int dmatest_add_threads(struct dmatest_info *info,
 		thread->task = kthread_run(dmatest_func, thread, "%s-%s%u",
 				dma_chan_name(chan), op, i);
 		if (IS_ERR(thread->task)) {
-			pr_warning("dmatest: Failed to run thread %s-%s%u\n",
-					dma_chan_name(chan), op, i);
+			pr_warn("Failed to run thread %s-%s%u\n",
+				dma_chan_name(chan), op, i);
 			kfree(thread);
 			break;
 		}
@@ -692,7 +691,7 @@ static int dmatest_add_channel(struct dmatest_info *info,
 
 	dtc = kmalloc(sizeof(struct dmatest_chan), GFP_KERNEL);
 	if (!dtc) {
-		pr_warning("dmatest: No memory for %s\n", dma_chan_name(chan));
+		pr_warn("No memory for %s\n", dma_chan_name(chan));
 		return -ENOMEM;
 	}
 
@@ -712,7 +711,7 @@ static int dmatest_add_channel(struct dmatest_info *info,
 		thread_count += cnt > 0 ? cnt : 0;
 	}
 
-	pr_info("dmatest: Started %u threads using %s\n",
+	pr_info("Started %u threads using %s\n",
 		thread_count, dma_chan_name(chan));
 
 	list_add_tail(&dtc->node, &info->channels);
@@ -779,7 +778,7 @@ static void __stop_threaded_test(struct dmatest_info *info)
 		list_del(&dtc->node);
 		chan = dtc->chan;
 		dmatest_cleanup_channel(dtc);
-		pr_debug("dmatest: dropped channel %s\n", dma_chan_name(chan));
+		pr_debug("dropped channel %s\n", dma_chan_name(chan));
 		dma_release_channel(chan);
 	}
 
@@ -906,7 +905,7 @@ static int dmatest_register_dbgfs(struct dmatest_info *info)
 	return 0;
 
 err_root:
-	pr_err("dmatest: Failed to initialize debugfs\n");
+	pr_err("Failed to initialize debugfs\n");
 	return -ENOMEM;
 }
 
-- 
cgit 


From a310d037b8d06755c62bb4878c00d19490af5550 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 6 Nov 2013 16:30:01 -0800
Subject: dmatest: restore ability to start test at module load and init

1/ move 'run' control to a module parameter so we can do:
   modprobe dmatest run=1.  With this moved the rest of the debugfs
   boilerplate can go.

2/ Fix parameter initialization.  Previously the test was being started
   without taking the parameters into account in the built-in case.

Also killed off the '__' version of some routines.  The new rule is just
hold the lock when calling a *threaded_test() routine.

Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 Documentation/dmatest.txt |  18 ++--
 drivers/dma/dmatest.c     | 265 +++++++++++++++++++---------------------------
 2 files changed, 116 insertions(+), 167 deletions(-)

diff --git a/Documentation/dmatest.txt b/Documentation/dmatest.txt
index 45b8c95f1a21..e6e16a7f3706 100644
--- a/Documentation/dmatest.txt
+++ b/Documentation/dmatest.txt
@@ -15,17 +15,19 @@ be built as module or inside kernel. Let's consider those cases.
 
 	Part 2 - When dmatest is built as a module...
 
-After mounting debugfs and loading the module, the /sys/kernel/debug/dmatest
-folder with a file named 'run' nodes will be created.  'run' controls run and
-stop phases of the test.
-
-Note that in this case test will not run on load automatically.
-
 Example of usage:
+	% modprobe dmatest channel=dma0chan0 timeout=2000 iterations=1 run=1
+
+...or:
+	% modprobe dmatest
 	% echo dma0chan0 > /sys/module/dmatest/parameters/channel
 	% echo 2000 > /sys/module/dmatest/parameters/timeout
 	% echo 1 > /sys/module/dmatest/parameters/iterations
-	% echo 1 > /sys/kernel/debug/dmatest/run
+	% echo 1 > /sys/module/dmatest/parameters/run
+
+...or on the kernel command line:
+
+	dmatest.channel=dma0chan0 dmatest.timeout=2000 dmatest.iterations=1 dmatest.run=1
 
 Hint: available channel list could be extracted by running the following
 command:
@@ -42,7 +44,7 @@ The following command should return actual state of the test.
 
 To wait for test done the user may perform a busy loop that checks the state.
 
-	% while [ $(cat /sys/kernel/debug/dmatest/run) = "Y" ]
+	% while [ $(cat /sys/module/dmatest/parameters/run) = "Y" ]
 	> do
 	> 	echo -n "."
 	> 	sleep 1
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index 15199edcc366..c5048671daf7 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -21,10 +21,6 @@
 #include <linux/random.h>
 #include <linux/slab.h>
 #include <linux/wait.h>
-#include <linux/ctype.h>
-#include <linux/debugfs.h>
-#include <linux/uaccess.h>
-#include <linux/seq_file.h>
 
 static unsigned int test_buf_size = 16384;
 module_param(test_buf_size, uint, S_IRUGO | S_IWUSR);
@@ -70,45 +66,6 @@ module_param(timeout, uint, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(timeout, "Transfer Timeout in msec (default: 3000), "
 		 "Pass -1 for infinite timeout");
 
-/* Maximum amount of mismatched bytes in buffer to print */
-#define MAX_ERROR_COUNT		32
-
-/*
- * Initialization patterns. All bytes in the source buffer has bit 7
- * set, all bytes in the destination buffer has bit 7 cleared.
- *
- * Bit 6 is set for all bytes which are to be copied by the DMA
- * engine. Bit 5 is set for all bytes which are to be overwritten by
- * the DMA engine.
- *
- * The remaining bits are the inverse of a counter which increments by
- * one for each byte address.
- */
-#define PATTERN_SRC		0x80
-#define PATTERN_DST		0x00
-#define PATTERN_COPY		0x40
-#define PATTERN_OVERWRITE	0x20
-#define PATTERN_COUNT_MASK	0x1f
-
-struct dmatest_info;
-
-struct dmatest_thread {
-	struct list_head	node;
-	struct dmatest_info	*info;
-	struct task_struct	*task;
-	struct dma_chan		*chan;
-	u8			**srcs;
-	u8			**dsts;
-	enum dma_transaction_type type;
-	bool			done;
-};
-
-struct dmatest_chan {
-	struct list_head	node;
-	struct dma_chan		*chan;
-	struct list_head	threads;
-};
-
 /**
  * struct dmatest_params - test parameters.
  * @buf_size:		size of the memcpy test buffer
@@ -138,7 +95,7 @@ struct dmatest_params {
  * @params:		test parameters
  * @lock:		access protection to the fields of this structure
  */
-struct dmatest_info {
+static struct dmatest_info {
 	/* Test parameters */
 	struct dmatest_params	params;
 
@@ -146,12 +103,58 @@ struct dmatest_info {
 	struct list_head	channels;
 	unsigned int		nr_channels;
 	struct mutex		lock;
+	bool			did_init;
+} test_info = {
+	.channels = LIST_HEAD_INIT(test_info.channels),
+	.lock = __MUTEX_INITIALIZER(test_info.lock),
+};
 
-	/* debugfs related stuff */
-	struct dentry		*root;
+static int dmatest_run_set(const char *val, const struct kernel_param *kp);
+static int dmatest_run_get(char *val, const struct kernel_param *kp);
+static struct kernel_param_ops run_ops = {
+	.set = dmatest_run_set,
+	.get = dmatest_run_get,
 };
+static bool dmatest_run;
+module_param_cb(run, &run_ops, &dmatest_run, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(run, "Run the test (default: false)");
 
-static struct dmatest_info test_info;
+/* Maximum amount of mismatched bytes in buffer to print */
+#define MAX_ERROR_COUNT		32
+
+/*
+ * Initialization patterns. All bytes in the source buffer has bit 7
+ * set, all bytes in the destination buffer has bit 7 cleared.
+ *
+ * Bit 6 is set for all bytes which are to be copied by the DMA
+ * engine. Bit 5 is set for all bytes which are to be overwritten by
+ * the DMA engine.
+ *
+ * The remaining bits are the inverse of a counter which increments by
+ * one for each byte address.
+ */
+#define PATTERN_SRC		0x80
+#define PATTERN_DST		0x00
+#define PATTERN_COPY		0x40
+#define PATTERN_OVERWRITE	0x20
+#define PATTERN_COUNT_MASK	0x1f
+
+struct dmatest_thread {
+	struct list_head	node;
+	struct dmatest_info	*info;
+	struct task_struct	*task;
+	struct dma_chan		*chan;
+	u8			**srcs;
+	u8			**dsts;
+	enum dma_transaction_type type;
+	bool			done;
+};
+
+struct dmatest_chan {
+	struct list_head	node;
+	struct dma_chan		*chan;
+	struct list_head	threads;
+};
 
 static bool dmatest_match_channel(struct dmatest_params *params,
 		struct dma_chan *chan)
@@ -731,13 +734,24 @@ static bool filter(struct dma_chan *chan, void *param)
 		return true;
 }
 
-static int __run_threaded_test(struct dmatest_info *info)
+static int run_threaded_test(struct dmatest_info *info)
 {
 	dma_cap_mask_t mask;
 	struct dma_chan *chan;
 	struct dmatest_params *params = &info->params;
 	int err = 0;
 
+	/* Copy test parameters */
+	params->buf_size = test_buf_size;
+	strlcpy(params->channel, strim(test_channel), sizeof(params->channel));
+	strlcpy(params->device, strim(test_device), sizeof(params->device));
+	params->threads_per_chan = threads_per_chan;
+	params->max_channels = max_channels;
+	params->iterations = iterations;
+	params->xor_sources = xor_sources;
+	params->pq_sources = pq_sources;
+	params->timeout = timeout;
+
 	dma_cap_zero(mask);
 	dma_cap_set(DMA_MEMCPY, mask);
 	for (;;) {
@@ -757,19 +771,8 @@ static int __run_threaded_test(struct dmatest_info *info)
 	return err;
 }
 
-#ifndef MODULE
-static int run_threaded_test(struct dmatest_info *info)
-{
-	int ret;
-
-	mutex_lock(&info->lock);
-	ret = __run_threaded_test(info);
-	mutex_unlock(&info->lock);
-	return ret;
-}
-#endif
 
-static void __stop_threaded_test(struct dmatest_info *info)
+static void stop_threaded_test(struct dmatest_info *info)
 {
 	struct dmatest_chan *dtc, *_dtc;
 	struct dma_chan *chan;
@@ -785,39 +788,22 @@ static void __stop_threaded_test(struct dmatest_info *info)
 	info->nr_channels = 0;
 }
 
-static void stop_threaded_test(struct dmatest_info *info)
-{
-	mutex_lock(&info->lock);
-	__stop_threaded_test(info);
-	mutex_unlock(&info->lock);
-}
-
-static int __restart_threaded_test(struct dmatest_info *info, bool run)
+static int restart_threaded_test(struct dmatest_info *info, bool run)
 {
-	struct dmatest_params *params = &info->params;
-
-	/* Stop any running test first */
-	__stop_threaded_test(info);
-
-	if (run == false)
+	/* we might be called early to set run=, defer running until all
+	 * parameters have been evaluated
+	 */
+	if (!info->did_init)
 		return 0;
 
-	/* Copy test parameters */
-	params->buf_size = test_buf_size;
-	strlcpy(params->channel, strim(test_channel), sizeof(params->channel));
-	strlcpy(params->device, strim(test_device), sizeof(params->device));
-	params->threads_per_chan = threads_per_chan;
-	params->max_channels = max_channels;
-	params->iterations = iterations;
-	params->xor_sources = xor_sources;
-	params->pq_sources = pq_sources;
-	params->timeout = timeout;
+	/* Stop any running test first */
+	stop_threaded_test(info);
 
 	/* Run test with new parameters */
-	return __run_threaded_test(info);
+	return run_threaded_test(info);
 }
 
-static bool __is_threaded_test_run(struct dmatest_info *info)
+static bool is_threaded_test_run(struct dmatest_info *info)
 {
 	struct dmatest_chan *dtc;
 
@@ -833,101 +819,61 @@ static bool __is_threaded_test_run(struct dmatest_info *info)
 	return false;
 }
 
-static ssize_t dtf_read_run(struct file *file, char __user *user_buf,
-		size_t count, loff_t *ppos)
+static int dmatest_run_get(char *val, const struct kernel_param *kp)
 {
-	struct dmatest_info *info = file->private_data;
-	char buf[3];
+	struct dmatest_info *info = &test_info;
 
 	mutex_lock(&info->lock);
-
-	if (__is_threaded_test_run(info)) {
-		buf[0] = 'Y';
+	if (is_threaded_test_run(info)) {
+		dmatest_run = true;
 	} else {
-		__stop_threaded_test(info);
-		buf[0] = 'N';
+		stop_threaded_test(info);
+		dmatest_run = false;
 	}
-
 	mutex_unlock(&info->lock);
-	buf[1] = '\n';
-	buf[2] = 0x00;
-	return simple_read_from_buffer(user_buf, count, ppos, buf, 2);
+
+	return param_get_bool(val, kp);
 }
 
-static ssize_t dtf_write_run(struct file *file, const char __user *user_buf,
-		size_t count, loff_t *ppos)
+static int dmatest_run_set(const char *val, const struct kernel_param *kp)
 {
-	struct dmatest_info *info = file->private_data;
-	char buf[16];
-	bool bv;
-	int ret = 0;
-
-	if (copy_from_user(buf, user_buf, min(count, (sizeof(buf) - 1))))
-		return -EFAULT;
-
-	if (strtobool(buf, &bv) == 0) {
-		mutex_lock(&info->lock);
-
-		if (__is_threaded_test_run(info))
-			ret = -EBUSY;
-		else
-			ret = __restart_threaded_test(info, bv);
+	struct dmatest_info *info = &test_info;
+	int ret;
 
+	mutex_lock(&info->lock);
+	ret = param_set_bool(val, kp);
+	if (ret) {
 		mutex_unlock(&info->lock);
+		return ret;
 	}
 
-	return ret ? ret : count;
-}
-
-static const struct file_operations dtf_run_fops = {
-	.read	= dtf_read_run,
-	.write	= dtf_write_run,
-	.open	= simple_open,
-	.llseek	= default_llseek,
-};
-
-static int dmatest_register_dbgfs(struct dmatest_info *info)
-{
-	struct dentry *d;
-
-	d = debugfs_create_dir("dmatest", NULL);
-	if (IS_ERR(d))
-		return PTR_ERR(d);
-	if (!d)
-		goto err_root;
+	if (is_threaded_test_run(info))
+		ret = -EBUSY;
+	else if (dmatest_run)
+		ret = restart_threaded_test(info, dmatest_run);
 
-	info->root = d;
-
-	/* Run or stop threaded test */
-	debugfs_create_file("run", S_IWUSR | S_IRUGO, info->root, info,
-			    &dtf_run_fops);
-
-	return 0;
+	mutex_unlock(&info->lock);
 
-err_root:
-	pr_err("Failed to initialize debugfs\n");
-	return -ENOMEM;
+	return ret;
 }
 
 static int __init dmatest_init(void)
 {
 	struct dmatest_info *info = &test_info;
-	int ret;
-
-	memset(info, 0, sizeof(*info));
+	int ret = 0;
 
-	mutex_init(&info->lock);
-	INIT_LIST_HEAD(&info->channels);
+	if (dmatest_run) {
+		mutex_lock(&info->lock);
+		ret = run_threaded_test(info);
+		mutex_unlock(&info->lock);
+	}
 
-	ret = dmatest_register_dbgfs(info);
-	if (ret)
-		return ret;
+	/* module parameters are stable, inittime tests are started,
+	 * let userspace take over 'run' control
+	 */
+	info->did_init = true;
 
-#ifdef MODULE
-	return 0;
-#else
-	return run_threaded_test(info);
-#endif
+	return ret;
 }
 /* when compiled-in wait for drivers to load first */
 late_initcall(dmatest_init);
@@ -936,8 +882,9 @@ static void __exit dmatest_exit(void)
 {
 	struct dmatest_info *info = &test_info;
 
-	debugfs_remove_recursive(info->root);
+	mutex_lock(&info->lock);
 	stop_threaded_test(info);
+	mutex_unlock(&info->lock);
 }
 module_exit(dmatest_exit);
 
-- 
cgit 


From a9e554957de406d6adc581731f571b8a1503f6b0 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 6 Nov 2013 16:30:02 -0800
Subject: dmatest: support xor-only, or pq-only channels in tests

Currently we only test raid channels that happen to also have 'copy'
capability.  Search for capable channels that do not have DMA_MEMCPY.

Note the return value from run_threaded_test never really made sense
because it could return errors after successfully starting tests.  We
already have the test results per channel so missing channels can be
detected at that time.

Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dma/dmatest.c | 58 ++++++++++++++++++++++++++++-----------------------
 1 file changed, 32 insertions(+), 26 deletions(-)

diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index c5048671daf7..ea829659149a 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -734,31 +734,20 @@ static bool filter(struct dma_chan *chan, void *param)
 		return true;
 }
 
-static int run_threaded_test(struct dmatest_info *info)
+static void request_channels(struct dmatest_info *info,
+			     enum dma_transaction_type type)
 {
 	dma_cap_mask_t mask;
-	struct dma_chan *chan;
-	struct dmatest_params *params = &info->params;
-	int err = 0;
-
-	/* Copy test parameters */
-	params->buf_size = test_buf_size;
-	strlcpy(params->channel, strim(test_channel), sizeof(params->channel));
-	strlcpy(params->device, strim(test_device), sizeof(params->device));
-	params->threads_per_chan = threads_per_chan;
-	params->max_channels = max_channels;
-	params->iterations = iterations;
-	params->xor_sources = xor_sources;
-	params->pq_sources = pq_sources;
-	params->timeout = timeout;
 
 	dma_cap_zero(mask);
-	dma_cap_set(DMA_MEMCPY, mask);
+	dma_cap_set(type, mask);
 	for (;;) {
+		struct dmatest_params *params = &info->params;
+		struct dma_chan *chan;
+
 		chan = dma_request_channel(mask, filter, params);
 		if (chan) {
-			err = dmatest_add_channel(info, chan);
-			if (err) {
+			if (dmatest_add_channel(info, chan)) {
 				dma_release_channel(chan);
 				break; /* add_channel failed, punt */
 			}
@@ -768,9 +757,27 @@ static int run_threaded_test(struct dmatest_info *info)
 		    info->nr_channels >= params->max_channels)
 			break; /* we have all we need */
 	}
-	return err;
 }
 
+static void run_threaded_test(struct dmatest_info *info)
+{
+	struct dmatest_params *params = &info->params;
+
+	/* Copy test parameters */
+	params->buf_size = test_buf_size;
+	strlcpy(params->channel, strim(test_channel), sizeof(params->channel));
+	strlcpy(params->device, strim(test_device), sizeof(params->device));
+	params->threads_per_chan = threads_per_chan;
+	params->max_channels = max_channels;
+	params->iterations = iterations;
+	params->xor_sources = xor_sources;
+	params->pq_sources = pq_sources;
+	params->timeout = timeout;
+
+	request_channels(info, DMA_MEMCPY);
+	request_channels(info, DMA_XOR);
+	request_channels(info, DMA_PQ);
+}
 
 static void stop_threaded_test(struct dmatest_info *info)
 {
@@ -788,19 +795,19 @@ static void stop_threaded_test(struct dmatest_info *info)
 	info->nr_channels = 0;
 }
 
-static int restart_threaded_test(struct dmatest_info *info, bool run)
+static void restart_threaded_test(struct dmatest_info *info, bool run)
 {
 	/* we might be called early to set run=, defer running until all
 	 * parameters have been evaluated
 	 */
 	if (!info->did_init)
-		return 0;
+		return;
 
 	/* Stop any running test first */
 	stop_threaded_test(info);
 
 	/* Run test with new parameters */
-	return run_threaded_test(info);
+	run_threaded_test(info);
 }
 
 static bool is_threaded_test_run(struct dmatest_info *info)
@@ -850,7 +857,7 @@ static int dmatest_run_set(const char *val, const struct kernel_param *kp)
 	if (is_threaded_test_run(info))
 		ret = -EBUSY;
 	else if (dmatest_run)
-		ret = restart_threaded_test(info, dmatest_run);
+		restart_threaded_test(info, dmatest_run);
 
 	mutex_unlock(&info->lock);
 
@@ -860,11 +867,10 @@ static int dmatest_run_set(const char *val, const struct kernel_param *kp)
 static int __init dmatest_init(void)
 {
 	struct dmatest_info *info = &test_info;
-	int ret = 0;
 
 	if (dmatest_run) {
 		mutex_lock(&info->lock);
-		ret = run_threaded_test(info);
+		run_threaded_test(info);
 		mutex_unlock(&info->lock);
 	}
 
@@ -873,7 +879,7 @@ static int __init dmatest_init(void)
 	 */
 	info->did_init = true;
 
-	return ret;
+	return 0;
 }
 /* when compiled-in wait for drivers to load first */
 late_initcall(dmatest_init);
-- 
cgit 


From be9fa5a43641103bf13cd1bb8101a1453da03616 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 6 Nov 2013 16:30:03 -0800
Subject: dmatest: use pseudo random numbers

There is no need for dmatest to drain the entropy pool.

It would be nice to one day have repeatable runs, but would need a
larger rework to synchronize and order calls to the rng across test
threads.

Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dma/dmatest.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index ea829659149a..01ac7112b5fd 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -176,7 +176,7 @@ static unsigned long dmatest_random(void)
 {
 	unsigned long buf;
 
-	get_random_bytes(&buf, sizeof(buf));
+	prandom_bytes(&buf, sizeof(buf));
 	return buf;
 }
 
-- 
cgit 


From e3b9c347316fe243bea6abd08681050c43ca22ee Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 6 Nov 2013 16:30:05 -0800
Subject: dmatest: add support for skipping verification and random data setup

Towards enabling dmatest to checkout performance add a 'noverify' mode.

Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dma/dmatest.c | 44 +++++++++++++++++++++++++++++++++-----------
 1 file changed, 33 insertions(+), 11 deletions(-)

diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index 01ac7112b5fd..d07b73275d0f 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -66,6 +66,10 @@ module_param(timeout, uint, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(timeout, "Transfer Timeout in msec (default: 3000), "
 		 "Pass -1 for infinite timeout");
 
+static bool noverify;
+module_param(noverify, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(noverify, "Disable random data setup and verification");
+
 /**
  * struct dmatest_params - test parameters.
  * @buf_size:		size of the memcpy test buffer
@@ -88,6 +92,7 @@ struct dmatest_params {
 	unsigned int	xor_sources;
 	unsigned int	pq_sources;
 	int		timeout;
+	bool		noverify;
 };
 
 /**
@@ -435,18 +440,30 @@ static int dmatest_func(void *data)
 			break;
 		}
 
-		len = dmatest_random() % params->buf_size + 1;
+		if (params->noverify) {
+			len = params->buf_size;
+			src_off = 0;
+			dst_off = 0;
+		} else {
+			len = dmatest_random() % params->buf_size + 1;
+			len = (len >> align) << align;
+			if (!len)
+				len = 1 << align;
+			src_off = dmatest_random() % (params->buf_size - len + 1);
+			dst_off = dmatest_random() % (params->buf_size - len + 1);
+
+			src_off = (src_off >> align) << align;
+			dst_off = (dst_off >> align) << align;
+
+			dmatest_init_srcs(thread->srcs, src_off, len,
+					  params->buf_size);
+			dmatest_init_dsts(thread->dsts, dst_off, len,
+					  params->buf_size);
+		}
+
 		len = (len >> align) << align;
 		if (!len)
 			len = 1 << align;
-		src_off = dmatest_random() % (params->buf_size - len + 1);
-		dst_off = dmatest_random() % (params->buf_size - len + 1);
-
-		src_off = (src_off >> align) << align;
-		dst_off = (dst_off >> align) << align;
-
-		dmatest_init_srcs(thread->srcs, src_off, len, params->buf_size);
-		dmatest_init_dsts(thread->dsts, dst_off, len, params->buf_size);
 
 		for (i = 0; i < src_cnt; i++) {
 			u8 *buf = thread->srcs[i] + src_off;
@@ -555,10 +572,14 @@ static int dmatest_func(void *data)
 		unmap_src(dev->dev, dma_srcs, len, src_cnt);
 		unmap_dst(dev->dev, dma_dsts, params->buf_size, dst_cnt);
 
-		error_count = 0;
+		if (params->noverify) {
+			dbg_result("test passed", total_tests, src_off, dst_off,
+				   len, 0);
+			continue;
+		}
 
 		pr_debug("%s: verifying source buffer...\n", current->comm);
-		error_count += dmatest_verify(thread->srcs, 0, src_off,
+		error_count = dmatest_verify(thread->srcs, 0, src_off,
 				0, PATTERN_SRC, true);
 		error_count += dmatest_verify(thread->srcs, src_off,
 				src_off + len, src_off,
@@ -773,6 +794,7 @@ static void run_threaded_test(struct dmatest_info *info)
 	params->xor_sources = xor_sources;
 	params->pq_sources = pq_sources;
 	params->timeout = timeout;
+	params->noverify = noverify;
 
 	request_channels(info, DMA_MEMCPY);
 	request_channels(info, DMA_XOR);
-- 
cgit 


From 86727443a04fdb25397041188efd2527f2b7237b Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 6 Nov 2013 16:30:07 -0800
Subject: dmatest: add basic performance metrics

Add iops and throughput to the summary output.

Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 Documentation/dmatest.txt |  4 ++++
 drivers/dma/dmatest.c     | 35 +++++++++++++++++++++++++++++++++--
 2 files changed, 37 insertions(+), 2 deletions(-)

diff --git a/Documentation/dmatest.txt b/Documentation/dmatest.txt
index e6e16a7f3706..0beb4b68d81f 100644
--- a/Documentation/dmatest.txt
+++ b/Documentation/dmatest.txt
@@ -77,5 +77,9 @@ the parens represents additional information, e.g. error code, error counter,
 or status.  A test thread also emits a summary line at completion listing the
 number of tests executed, number that failed, and a result code.
 
+Example:
+	% dmesg | tail -n 1
+	dmatest: dma3chan0-copy0: summary 400000 tests, 0 failures iops: 61524 KB/s 246098 (0)
+
 The details of a data miscompare error are also emitted, but do not follow the
 above format.
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index d07b73275d0f..26b502069638 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -325,6 +325,29 @@ static void dbg_result(const char *err, unsigned int n, unsigned int src_off,
 		 current->comm, n, err, src_off, dst_off, len, data);
 }
 
+static unsigned long long dmatest_persec(s64 runtime, unsigned int val)
+{
+	unsigned long long per_sec = 1000000;
+
+	if (runtime <= 0)
+		return 0;
+
+	/* drop precision until runtime is 32-bits */
+	while (runtime > UINT_MAX) {
+		runtime >>= 1;
+		per_sec <<= 1;
+	}
+
+	per_sec *= val;
+	do_div(per_sec, runtime);
+	return per_sec;
+}
+
+static unsigned long long dmatest_KBs(s64 runtime, unsigned long long len)
+{
+	return dmatest_persec(runtime, len >> 10);
+}
+
 /*
  * This function repeatedly tests DMA transfers of various lengths and
  * offsets for a given operation type until it is told to exit by
@@ -360,6 +383,9 @@ static int dmatest_func(void *data)
 	int			src_cnt;
 	int			dst_cnt;
 	int			i;
+	ktime_t			ktime;
+	s64			runtime = 0;
+	unsigned long long	total_len = 0;
 
 	set_freezable();
 
@@ -417,6 +443,7 @@ static int dmatest_func(void *data)
 	 */
 	flags = DMA_CTRL_ACK | DMA_PREP_INTERRUPT;
 
+	ktime = ktime_get();
 	while (!kthread_should_stop()
 	       && !(params->iterations && total_tests >= params->iterations)) {
 		struct dma_async_tx_descriptor *tx = NULL;
@@ -464,6 +491,7 @@ static int dmatest_func(void *data)
 		len = (len >> align) << align;
 		if (!len)
 			len = 1 << align;
+		total_len += len;
 
 		for (i = 0; i < src_cnt; i++) {
 			u8 *buf = thread->srcs[i] + src_off;
@@ -607,6 +635,7 @@ static int dmatest_func(void *data)
 				   len, 0);
 		}
 	}
+	runtime = ktime_us_delta(ktime_get(), ktime);
 
 	ret = 0;
 	for (i = 0; thread->dsts[i]; i++)
@@ -621,8 +650,10 @@ err_srcbuf:
 err_srcs:
 	kfree(pq_coefs);
 err_thread_type:
-	pr_info("%s: terminating after %u tests, %u failures (status %d)\n",
-		current->comm, total_tests, failed_tests, ret);
+	pr_info("%s: summary %u tests, %u failures %llu iops %llu KB/s (%d)\n",
+		current->comm, total_tests, failed_tests,
+		dmatest_persec(runtime, total_tests),
+		dmatest_KBs(runtime, total_len), ret);
 
 	/* terminate all transfers on specified channels */
 	if (ret)
-- 
cgit 


From 2d88ce76eb98c4ac4411dcb299cf61ca8999d2b9 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 6 Nov 2013 16:30:09 -0800
Subject: dmatest: add a 'wait' parameter

Allows for scripting test runs by module load / unload.  Prevent module
load from returning until 'iterations' (finite) tests have completed, or
cause reads of the 'wait' parameter in sysfs to pause until the tests
are done.

Also killed the local waitqueue since we can just let the thread exit
naturally as long as we hold a reference.

Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 Documentation/dmatest.txt | 27 +++++++++++-------
 drivers/dma/dmatest.c     | 72 +++++++++++++++++++++++++++++++----------------
 2 files changed, 64 insertions(+), 35 deletions(-)

diff --git a/Documentation/dmatest.txt b/Documentation/dmatest.txt
index 0beb4b68d81f..dd77a81bdb80 100644
--- a/Documentation/dmatest.txt
+++ b/Documentation/dmatest.txt
@@ -39,17 +39,24 @@ stops.
 
 Note that running a new test will not stop any in progress test.
 
-The following command should return actual state of the test.
-	% cat /sys/kernel/debug/dmatest/run
+The following command returns the state of the test.
+	% cat /sys/module/dmatest/parameters/run
 
-To wait for test done the user may perform a busy loop that checks the state.
+To wait for test completion userpace can poll 'run' until it is false, or use
+the wait parameter.  Specifying 'wait=1' when loading the module causes module
+initialization to pause until a test run has completed, while reading
+/sys/module/dmatest/parameters/wait waits for any running test to complete
+before returning.  For example, the following scripts wait for 42 tests
+to complete before exiting.  Note that if 'iterations' is set to 'infinite' then
+waiting is disabled.
 
-	% while [ $(cat /sys/module/dmatest/parameters/run) = "Y" ]
-	> do
-	> 	echo -n "."
-	> 	sleep 1
-	> done
-	> echo
+Example:
+	% modprobe dmatest run=1 iterations=42 wait=1
+	% modprobe -r dmatest
+...or:
+	% modprobe dmatest run=1 iterations=42
+	% cat /sys/module/dmatest/parameters/wait
+	% modprobe -r dmatest
 
 	Part 3 - When built-in in the kernel...
 
@@ -79,7 +86,7 @@ number of tests executed, number that failed, and a result code.
 
 Example:
 	% dmesg | tail -n 1
-	dmatest: dma3chan0-copy0: summary 400000 tests, 0 failures iops: 61524 KB/s 246098 (0)
+	dmatest: dma0chan0-copy0: summary 1 test, 0 failures 1000 iops 100000 KB/s (0)
 
 The details of a data miscompare error are also emitted, but do not follow the
 above format.
diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index 26b502069638..dd4d84d556d5 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -161,6 +161,43 @@ struct dmatest_chan {
 	struct list_head	threads;
 };
 
+static DECLARE_WAIT_QUEUE_HEAD(thread_wait);
+static bool wait;
+
+static bool is_threaded_test_run(struct dmatest_info *info)
+{
+	struct dmatest_chan *dtc;
+
+	list_for_each_entry(dtc, &info->channels, node) {
+		struct dmatest_thread *thread;
+
+		list_for_each_entry(thread, &dtc->threads, node) {
+			if (!thread->done)
+				return true;
+		}
+	}
+
+	return false;
+}
+
+static int dmatest_wait_get(char *val, const struct kernel_param *kp)
+{
+	struct dmatest_info *info = &test_info;
+	struct dmatest_params *params = &info->params;
+
+	if (params->iterations)
+		wait_event(thread_wait, !is_threaded_test_run(info));
+	wait = true;
+	return param_get_bool(val, kp);
+}
+
+static struct kernel_param_ops wait_ops = {
+	.get = dmatest_wait_get,
+	.set = param_set_bool,
+};
+module_param_cb(wait, &wait_ops, &wait, S_IRUGO);
+MODULE_PARM_DESC(wait, "Wait for tests to complete (default: false)");
+
 static bool dmatest_match_channel(struct dmatest_params *params,
 		struct dma_chan *chan)
 {
@@ -660,12 +697,7 @@ err_thread_type:
 		dmaengine_terminate_all(chan);
 
 	thread->done = true;
-
-	if (params->iterations > 0)
-		while (!kthread_should_stop()) {
-			DECLARE_WAIT_QUEUE_HEAD_ONSTACK(wait_dmatest_exit);
-			interruptible_sleep_on(&wait_dmatest_exit);
-		}
+	wake_up(&thread_wait);
 
 	return ret;
 }
@@ -681,6 +713,7 @@ static void dmatest_cleanup_channel(struct dmatest_chan *dtc)
 		pr_debug("thread %s exited with status %d\n",
 			 thread->task->comm, ret);
 		list_del(&thread->node);
+		put_task_struct(thread->task);
 		kfree(thread);
 	}
 
@@ -719,18 +752,19 @@ static int dmatest_add_threads(struct dmatest_info *info,
 		thread->chan = dtc->chan;
 		thread->type = type;
 		smp_wmb();
-		thread->task = kthread_run(dmatest_func, thread, "%s-%s%u",
+		thread->task = kthread_create(dmatest_func, thread, "%s-%s%u",
 				dma_chan_name(chan), op, i);
 		if (IS_ERR(thread->task)) {
-			pr_warn("Failed to run thread %s-%s%u\n",
+			pr_warn("Failed to create thread %s-%s%u\n",
 				dma_chan_name(chan), op, i);
 			kfree(thread);
 			break;
 		}
 
 		/* srcbuf and dstbuf are allocated by the thread itself */
-
+		get_task_struct(thread->task);
 		list_add_tail(&thread->node, &dtc->threads);
+		wake_up_process(thread->task);
 	}
 
 	return i;
@@ -863,22 +897,6 @@ static void restart_threaded_test(struct dmatest_info *info, bool run)
 	run_threaded_test(info);
 }
 
-static bool is_threaded_test_run(struct dmatest_info *info)
-{
-	struct dmatest_chan *dtc;
-
-	list_for_each_entry(dtc, &info->channels, node) {
-		struct dmatest_thread *thread;
-
-		list_for_each_entry(thread, &dtc->threads, node) {
-			if (!thread->done)
-				return true;
-		}
-	}
-
-	return false;
-}
-
 static int dmatest_run_get(char *val, const struct kernel_param *kp)
 {
 	struct dmatest_info *info = &test_info;
@@ -920,6 +938,7 @@ static int dmatest_run_set(const char *val, const struct kernel_param *kp)
 static int __init dmatest_init(void)
 {
 	struct dmatest_info *info = &test_info;
+	struct dmatest_params *params = &info->params;
 
 	if (dmatest_run) {
 		mutex_lock(&info->lock);
@@ -927,6 +946,9 @@ static int __init dmatest_init(void)
 		mutex_unlock(&info->lock);
 	}
 
+	if (params->iterations && wait)
+		wait_event(thread_wait, !is_threaded_test_run(info));
+
 	/* module parameters are stable, inittime tests are started,
 	 * let userspace take over 'run' control
 	 */
-- 
cgit 


From 4076e755dbec078c85352a8f77cec4c10181da4e Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 6 Nov 2013 16:30:10 -0800
Subject: dmatest: convert to dmaengine_unmap_data

Remove the open coded unmap and add coverage for this core functionality
to dmatest.

Also fixes up a couple places where we leaked dma mappings.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dma/dmatest.c | 86 ++++++++++++++++++++++++++-------------------------
 1 file changed, 44 insertions(+), 42 deletions(-)

diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index dd4d84d556d5..0d050d2324e3 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -326,20 +326,6 @@ static void dmatest_callback(void *arg)
 	wake_up_all(done->wait);
 }
 
-static inline void unmap_src(struct device *dev, dma_addr_t *addr, size_t len,
-			     unsigned int count)
-{
-	while (count--)
-		dma_unmap_single(dev, addr[count], len, DMA_TO_DEVICE);
-}
-
-static inline void unmap_dst(struct device *dev, dma_addr_t *addr, size_t len,
-			     unsigned int count)
-{
-	while (count--)
-		dma_unmap_single(dev, addr[count], len, DMA_BIDIRECTIONAL);
-}
-
 static unsigned int min_odd(unsigned int x, unsigned int y)
 {
 	unsigned int val = min(x, y);
@@ -484,8 +470,9 @@ static int dmatest_func(void *data)
 	while (!kthread_should_stop()
 	       && !(params->iterations && total_tests >= params->iterations)) {
 		struct dma_async_tx_descriptor *tx = NULL;
-		dma_addr_t dma_srcs[src_cnt];
-		dma_addr_t dma_dsts[dst_cnt];
+		struct dmaengine_unmap_data *um;
+		dma_addr_t srcs[src_cnt];
+		dma_addr_t *dsts;
 		u8 align = 0;
 
 		total_tests++;
@@ -530,61 +517,75 @@ static int dmatest_func(void *data)
 			len = 1 << align;
 		total_len += len;
 
-		for (i = 0; i < src_cnt; i++) {
-			u8 *buf = thread->srcs[i] + src_off;
+		um = dmaengine_get_unmap_data(dev->dev, src_cnt+dst_cnt,
+					      GFP_KERNEL);
+		if (!um) {
+			failed_tests++;
+			result("unmap data NULL", total_tests,
+			       src_off, dst_off, len, ret);
+			continue;
+		}
 
-			dma_srcs[i] = dma_map_single(dev->dev, buf, len,
-						     DMA_TO_DEVICE);
-			ret = dma_mapping_error(dev->dev, dma_srcs[i]);
+		um->len = params->buf_size;
+		for (i = 0; i < src_cnt; i++) {
+			unsigned long buf = (unsigned long) thread->srcs[i];
+			struct page *pg = virt_to_page(buf);
+			unsigned pg_off = buf & ~PAGE_MASK;
+
+			um->addr[i] = dma_map_page(dev->dev, pg, pg_off,
+						   um->len, DMA_TO_DEVICE);
+			srcs[i] = um->addr[i] + src_off;
+			ret = dma_mapping_error(dev->dev, um->addr[i]);
 			if (ret) {
-				unmap_src(dev->dev, dma_srcs, len, i);
+				dmaengine_unmap_put(um);
 				result("src mapping error", total_tests,
 				       src_off, dst_off, len, ret);
 				failed_tests++;
 				continue;
 			}
+			um->to_cnt++;
 		}
 		/* map with DMA_BIDIRECTIONAL to force writeback/invalidate */
+		dsts = &um->addr[src_cnt];
 		for (i = 0; i < dst_cnt; i++) {
-			dma_dsts[i] = dma_map_single(dev->dev, thread->dsts[i],
-						     params->buf_size,
-						     DMA_BIDIRECTIONAL);
-			ret = dma_mapping_error(dev->dev, dma_dsts[i]);
+			unsigned long buf = (unsigned long) thread->dsts[i];
+			struct page *pg = virt_to_page(buf);
+			unsigned pg_off = buf & ~PAGE_MASK;
+
+			dsts[i] = dma_map_page(dev->dev, pg, pg_off, um->len,
+					       DMA_BIDIRECTIONAL);
+			ret = dma_mapping_error(dev->dev, dsts[i]);
 			if (ret) {
-				unmap_src(dev->dev, dma_srcs, len, src_cnt);
-				unmap_dst(dev->dev, dma_dsts, params->buf_size,
-					  i);
+				dmaengine_unmap_put(um);
 				result("dst mapping error", total_tests,
 				       src_off, dst_off, len, ret);
 				failed_tests++;
 				continue;
 			}
+			um->bidi_cnt++;
 		}
 
 		if (thread->type == DMA_MEMCPY)
 			tx = dev->device_prep_dma_memcpy(chan,
-							 dma_dsts[0] + dst_off,
-							 dma_srcs[0], len,
-							 flags);
+							 dsts[0] + dst_off,
+							 srcs[0], len, flags);
 		else if (thread->type == DMA_XOR)
 			tx = dev->device_prep_dma_xor(chan,
-						      dma_dsts[0] + dst_off,
-						      dma_srcs, src_cnt,
+						      dsts[0] + dst_off,
+						      srcs, src_cnt,
 						      len, flags);
 		else if (thread->type == DMA_PQ) {
 			dma_addr_t dma_pq[dst_cnt];
 
 			for (i = 0; i < dst_cnt; i++)
-				dma_pq[i] = dma_dsts[i] + dst_off;
-			tx = dev->device_prep_dma_pq(chan, dma_pq, dma_srcs,
+				dma_pq[i] = dsts[i] + dst_off;
+			tx = dev->device_prep_dma_pq(chan, dma_pq, srcs,
 						     src_cnt, pq_coefs,
 						     len, flags);
 		}
 
 		if (!tx) {
-			unmap_src(dev->dev, dma_srcs, len, src_cnt);
-			unmap_dst(dev->dev, dma_dsts, params->buf_size,
-				  dst_cnt);
+			dmaengine_unmap_put(um);
 			result("prep error", total_tests, src_off,
 			       dst_off, len, ret);
 			msleep(100);
@@ -598,6 +599,7 @@ static int dmatest_func(void *data)
 		cookie = tx->tx_submit(tx);
 
 		if (dma_submit_error(cookie)) {
+			dmaengine_unmap_put(um);
 			result("submit error", total_tests, src_off,
 			       dst_off, len, ret);
 			msleep(100);
@@ -620,11 +622,13 @@ static int dmatest_func(void *data)
 			 * free it this time?" dancing.  For now, just
 			 * leave it dangling.
 			 */
+			dmaengine_unmap_put(um);
 			result("test timed out", total_tests, src_off, dst_off,
 			       len, 0);
 			failed_tests++;
 			continue;
 		} else if (status != DMA_SUCCESS) {
+			dmaengine_unmap_put(um);
 			result(status == DMA_ERROR ?
 			       "completion error status" :
 			       "completion busy status", total_tests, src_off,
@@ -633,9 +637,7 @@ static int dmatest_func(void *data)
 			continue;
 		}
 
-		/* Unmap by myself */
-		unmap_src(dev->dev, dma_srcs, len, src_cnt);
-		unmap_dst(dev->dev, dma_dsts, params->buf_size, dst_cnt);
+		dmaengine_unmap_put(um);
 
 		if (params->noverify) {
 			dbg_result("test passed", total_tests, src_off, dst_off,
-- 
cgit 


From 50137a7df982f3767fe0b3b0cd0b9cfaf09c2cd9 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Fri, 8 Nov 2013 12:26:26 -0800
Subject: dmatest: verbose mode

Verbose mode turns on test success messages, by default we only output
test summaries and failure results.

Also cleaned up some stray quotes, leftover from putting the result
message format string all on one line.

Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dma/dmatest.c | 25 ++++++++++++++++++-------
 1 file changed, 18 insertions(+), 7 deletions(-)

diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index 0d050d2324e3..329b7cf02f8e 100644
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -70,6 +70,10 @@ static bool noverify;
 module_param(noverify, bool, S_IRUGO | S_IWUSR);
 MODULE_PARM_DESC(noverify, "Disable random data setup and verification");
 
+static bool verbose;
+module_param(verbose, bool, S_IRUGO | S_IWUSR);
+MODULE_PARM_DESC(verbose, "Enable \"success\" result messages (default: off)");
+
 /**
  * struct dmatest_params - test parameters.
  * @buf_size:		size of the memcpy test buffer
@@ -336,7 +340,7 @@ static unsigned int min_odd(unsigned int x, unsigned int y)
 static void result(const char *err, unsigned int n, unsigned int src_off,
 		   unsigned int dst_off, unsigned int len, unsigned long data)
 {
-	pr_info("%s: result #%u: '%s' with src_off=0x%x ""dst_off=0x%x len=0x%x (%lu)",
+	pr_info("%s: result #%u: '%s' with src_off=0x%x dst_off=0x%x len=0x%x (%lu)",
 		current->comm, n, err, src_off, dst_off, len, data);
 }
 
@@ -344,10 +348,17 @@ static void dbg_result(const char *err, unsigned int n, unsigned int src_off,
 		       unsigned int dst_off, unsigned int len,
 		       unsigned long data)
 {
-	pr_debug("%s: result #%u: '%s' with src_off=0x%x ""dst_off=0x%x len=0x%x (%lu)",
-		 current->comm, n, err, src_off, dst_off, len, data);
+	pr_debug("%s: result #%u: '%s' with src_off=0x%x dst_off=0x%x len=0x%x (%lu)",
+		   current->comm, n, err, src_off, dst_off, len, data);
 }
 
+#define verbose_result(err, n, src_off, dst_off, len, data) ({ \
+	if (verbose) \
+		result(err, n, src_off, dst_off, len, data); \
+	else \
+		dbg_result(err, n, src_off, dst_off, len, data); \
+})
+
 static unsigned long long dmatest_persec(s64 runtime, unsigned int val)
 {
 	unsigned long long per_sec = 1000000;
@@ -640,8 +651,8 @@ static int dmatest_func(void *data)
 		dmaengine_unmap_put(um);
 
 		if (params->noverify) {
-			dbg_result("test passed", total_tests, src_off, dst_off,
-				   len, 0);
+			verbose_result("test passed", total_tests, src_off,
+				       dst_off, len, 0);
 			continue;
 		}
 
@@ -670,8 +681,8 @@ static int dmatest_func(void *data)
 			       len, error_count);
 			failed_tests++;
 		} else {
-			dbg_result("test passed", total_tests, src_off, dst_off,
-				   len, 0);
+			verbose_result("test passed", total_tests, src_off,
+				       dst_off, len, 0);
 		}
 	}
 	runtime = ktime_us_delta(ktime_get(), ktime);
-- 
cgit 


From ac7d631f7d9f9e4e6116c4a72b6308067d0a2226 Mon Sep 17 00:00:00 2001
From: Dave Jiang <dave.jiang@intel.com>
Date: Wed, 6 Nov 2013 08:50:09 -0700
Subject: ioatdma: Fix bug in selftest after removal of DMA_MEMSET.

Commit 48a9db4 (3.11) removed the memset op in the xor selftest for ioatdma.
The issue is that with the removal of that op, it never replaced the memset
with a CPU memset. The memory being operated on is expected to be zeroes but
was not. This is causing the xor selftest to fail.

Cc: <stable@vger.kernel.org>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dma/ioat/dma_v3.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index a4798f0cc225..44786ad2a4cf 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -1376,6 +1376,8 @@ static int ioat_xor_val_self_test(struct ioatdma_device *device)
 		goto free_resources;
 	}
 
+	memset(page_address(dest), 0, PAGE_SIZE);
+
 	/* test for non-zero parity sum */
 	op = IOAT_OP_XOR_VAL;
 
-- 
cgit 


From 5d48b9b5d80e3aa38a5161565398b1e48a650573 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 13 Nov 2013 10:15:42 -0800
Subject: ioatdma: fix sed pool selection

The array to lookup the sed pool based on the number of sources
(pq16_idx_to_sedi) is 16 entries and expects a max source index.
However, we pass the total source count which runs off the end of the
array when src_cnt == 16.  The minimal fix is to just pass src_cnt-1,
but given we know the source count is > 8 we can just calculate the sed
pool by (src_cnt - 2) >> 3.

Cc: Dave Jiang <dave.jiang@intel.com>
Cc: <stable@vger.kernel.org>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dma/ioat/dma_v3.c | 16 +---------------
 1 file changed, 1 insertion(+), 15 deletions(-)

diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index 44786ad2a4cf..f26a35d43ba1 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -87,13 +87,6 @@ static const u8 pq_idx_to_field[] = { 1, 4, 5, 0, 1, 2, 4, 5 };
 static const u8 pq16_idx_to_field[] = { 1, 4, 1, 2, 3, 4, 5, 6, 7,
 					0, 1, 2, 3, 4, 5, 6 };
 
-/*
- * technically sources 1 and 2 do not require SED, but the op will have
- * at least 9 descriptors so that's irrelevant.
- */
-static const u8 pq16_idx_to_sed[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0,
-				      1, 1, 1, 1, 1, 1, 1 };
-
 static void ioat3_eh(struct ioat2_dma_chan *ioat);
 
 static void xor_set_src(struct ioat_raw_descriptor *descs[2],
@@ -128,12 +121,6 @@ static void pq_set_src(struct ioat_raw_descriptor *descs[2],
 	pq->coef[idx] = coef;
 }
 
-static int sed_get_pq16_pool_idx(int src_cnt)
-{
-
-	return pq16_idx_to_sed[src_cnt];
-}
-
 static bool is_jf_ioat(struct pci_dev *pdev)
 {
 	switch (pdev->device) {
@@ -994,8 +981,7 @@ __ioat3_prep_pq16_lock(struct dma_chan *c, enum sum_check_flags *result,
 
 		descs[0] = (struct ioat_raw_descriptor *) pq;
 
-		desc->sed = ioat3_alloc_sed(device,
-					    sed_get_pq16_pool_idx(src_cnt));
+		desc->sed = ioat3_alloc_sed(device, (src_cnt-2) >> 3);
 		if (!desc->sed) {
 			dev_err(to_dev(chan),
 				"%s: no free sed entries\n", __func__);
-- 
cgit 


From 21e96c7313486390c694919522a76dfea0a86c59 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 13 Nov 2013 10:37:36 -0800
Subject: ioatdma: fix selection of 16 vs 8 source path

When performing continuations there are implied sources that need to be
added to the source count. Quoting dma_set_maxpq:

/* dma_maxpq - reduce maxpq in the face of continued operations
 * @dma - dma device with PQ capability
 * @flags - to check if DMA_PREP_CONTINUE and DMA_PREP_PQ_DISABLE_P are set
 *
 * When an engine does not support native continuation we need 3 extra
 * source slots to reuse P and Q with the following coefficients:
 * 1/ {00} * P : remove P from Q', but use it as a source for P'
 * 2/ {01} * Q : use Q to continue Q' calculation
 * 3/ {00} * Q : subtract Q from P' to cancel (2)
 *
 * In the case where P is disabled we only need 1 extra source:
 * 1/ {01} * Q : use Q to continue Q' calculation
 */

...fix the selection of the 16 source path to take these implied sources
into account.

Note this also kills the BUG_ON(src_cnt < 9) check in
__ioat3_prep_pq16_lock().  Besides not accounting for implied sources
the check is redundant given we already made the path selection.

Cc: <stable@vger.kernel.org>
Cc: Dave Jiang <dave.jiang@intel.com>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dma/ioat/dma_v3.c | 30 +++++++++++++++---------------
 1 file changed, 15 insertions(+), 15 deletions(-)

diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index f26a35d43ba1..0284908997f8 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -951,9 +951,6 @@ __ioat3_prep_pq16_lock(struct dma_chan *c, enum sum_check_flags *result,
 	u8 op;
 	int i, s, idx, num_descs;
 
-	/* this function only handles src_cnt 9 - 16 */
-	BUG_ON(src_cnt < 9);
-
 	/* this function is only called with 9-16 sources */
 	op = result ? IOAT_OP_PQ_VAL_16S : IOAT_OP_PQ_16S;
 
@@ -1039,13 +1036,21 @@ __ioat3_prep_pq16_lock(struct dma_chan *c, enum sum_check_flags *result,
 	return &desc->txd;
 }
 
+static int src_cnt_flags(unsigned int src_cnt, unsigned long flags)
+{
+	if (dmaf_p_disabled_continue(flags))
+		return src_cnt + 1;
+	else if (dmaf_continue(flags))
+		return src_cnt + 3;
+	else
+		return src_cnt;
+}
+
 static struct dma_async_tx_descriptor *
 ioat3_prep_pq(struct dma_chan *chan, dma_addr_t *dst, dma_addr_t *src,
 	      unsigned int src_cnt, const unsigned char *scf, size_t len,
 	      unsigned long flags)
 {
-	struct dma_device *dma = chan->device;
-
 	/* specify valid address for disabled result */
 	if (flags & DMA_PREP_PQ_DISABLE_P)
 		dst[0] = dst[1];
@@ -1065,7 +1070,7 @@ ioat3_prep_pq(struct dma_chan *chan, dma_addr_t *dst, dma_addr_t *src,
 		single_source_coef[0] = scf[0];
 		single_source_coef[1] = 0;
 
-		return (src_cnt > 8) && (dma->max_pq > 8) ?
+		return src_cnt_flags(src_cnt, flags) > 8 ?
 			__ioat3_prep_pq16_lock(chan, NULL, dst, single_source,
 					       2, single_source_coef, len,
 					       flags) :
@@ -1073,7 +1078,7 @@ ioat3_prep_pq(struct dma_chan *chan, dma_addr_t *dst, dma_addr_t *src,
 					     single_source_coef, len, flags);
 
 	} else {
-		return (src_cnt > 8) && (dma->max_pq > 8) ?
+		return src_cnt_flags(src_cnt, flags) > 8 ?
 			__ioat3_prep_pq16_lock(chan, NULL, dst, src, src_cnt,
 					       scf, len, flags) :
 			__ioat3_prep_pq_lock(chan, NULL, dst, src, src_cnt,
@@ -1086,8 +1091,6 @@ ioat3_prep_pq_val(struct dma_chan *chan, dma_addr_t *pq, dma_addr_t *src,
 		  unsigned int src_cnt, const unsigned char *scf, size_t len,
 		  enum sum_check_flags *pqres, unsigned long flags)
 {
-	struct dma_device *dma = chan->device;
-
 	/* specify valid address for disabled result */
 	if (flags & DMA_PREP_PQ_DISABLE_P)
 		pq[0] = pq[1];
@@ -1099,7 +1102,7 @@ ioat3_prep_pq_val(struct dma_chan *chan, dma_addr_t *pq, dma_addr_t *src,
 	 */
 	*pqres = 0;
 
-	return (src_cnt > 8) && (dma->max_pq > 8) ?
+	return src_cnt_flags(src_cnt, flags) > 8 ?
 		__ioat3_prep_pq16_lock(chan, pqres, pq, src, src_cnt, scf, len,
 				       flags) :
 		__ioat3_prep_pq_lock(chan, pqres, pq, src, src_cnt, scf, len,
@@ -1110,7 +1113,6 @@ static struct dma_async_tx_descriptor *
 ioat3_prep_pqxor(struct dma_chan *chan, dma_addr_t dst, dma_addr_t *src,
 		 unsigned int src_cnt, size_t len, unsigned long flags)
 {
-	struct dma_device *dma = chan->device;
 	unsigned char scf[src_cnt];
 	dma_addr_t pq[2];
 
@@ -1119,7 +1121,7 @@ ioat3_prep_pqxor(struct dma_chan *chan, dma_addr_t dst, dma_addr_t *src,
 	flags |= DMA_PREP_PQ_DISABLE_Q;
 	pq[1] = dst; /* specify valid address for disabled result */
 
-	return (src_cnt > 8) && (dma->max_pq > 8) ?
+	return src_cnt_flags(src_cnt, flags) > 8 ?
 		__ioat3_prep_pq16_lock(chan, NULL, pq, src, src_cnt, scf, len,
 				       flags) :
 		__ioat3_prep_pq_lock(chan, NULL, pq, src, src_cnt, scf, len,
@@ -1131,7 +1133,6 @@ ioat3_prep_pqxor_val(struct dma_chan *chan, dma_addr_t *src,
 		     unsigned int src_cnt, size_t len,
 		     enum sum_check_flags *result, unsigned long flags)
 {
-	struct dma_device *dma = chan->device;
 	unsigned char scf[src_cnt];
 	dma_addr_t pq[2];
 
@@ -1145,8 +1146,7 @@ ioat3_prep_pqxor_val(struct dma_chan *chan, dma_addr_t *src,
 	flags |= DMA_PREP_PQ_DISABLE_Q;
 	pq[1] = pq[0]; /* specify valid address for disabled result */
 
-
-	return (src_cnt > 8) && (dma->max_pq > 8) ?
+	return src_cnt_flags(src_cnt, flags) > 8 ?
 		__ioat3_prep_pq16_lock(chan, result, pq, &src[1], src_cnt - 1,
 				       scf, len, flags) :
 		__ioat3_prep_pq_lock(chan, result, pq, &src[1], src_cnt - 1,
-- 
cgit 


From 59056e85d7dd337674c65d9dac65008cb46a98cd Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 13 Nov 2013 10:57:18 -0800
Subject: ioatdma: clean up sed pool kmem_cache

Use a single cache for all sed allocations.  No need to make it per
channel.  This also avoids the slub_debug warnings for multiple caches
with the same name.

Switching to dmam_pool_create() to fix leaking the dma pools on
initialization failure and lets us kill ioat3_dma_remove().

Cc: Dave Jiang <dave.jiang@intel.com>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dma/ioat/dma.h    |  1 -
 drivers/dma/ioat/dma_v2.h |  1 -
 drivers/dma/ioat/dma_v3.c | 42 +++++++-----------------------------------
 drivers/dma/ioat/pci.c    | 20 +++++++++++++++-----
 4 files changed, 22 insertions(+), 42 deletions(-)

diff --git a/drivers/dma/ioat/dma.h b/drivers/dma/ioat/dma.h
index 4300d5af188f..df552d841481 100644
--- a/drivers/dma/ioat/dma.h
+++ b/drivers/dma/ioat/dma.h
@@ -83,7 +83,6 @@ struct ioatdma_device {
 	struct pci_pool *completion_pool;
 #define MAX_SED_POOLS	5
 	struct dma_pool *sed_hw_pool[MAX_SED_POOLS];
-	struct kmem_cache *sed_pool;
 	struct dma_device common;
 	u8 version;
 	struct msix_entry msix_entries[4];
diff --git a/drivers/dma/ioat/dma_v2.h b/drivers/dma/ioat/dma_v2.h
index 212d584fe427..470292767e68 100644
--- a/drivers/dma/ioat/dma_v2.h
+++ b/drivers/dma/ioat/dma_v2.h
@@ -157,7 +157,6 @@ static inline void ioat2_set_chainaddr(struct ioat2_dma_chan *ioat, u64 addr)
 
 int ioat2_dma_probe(struct ioatdma_device *dev, int dca);
 int ioat3_dma_probe(struct ioatdma_device *dev, int dca);
-void ioat3_dma_remove(struct ioatdma_device *dev);
 struct dca_provider *ioat2_dca_init(struct pci_dev *pdev, void __iomem *iobase);
 struct dca_provider *ioat3_dca_init(struct pci_dev *pdev, void __iomem *iobase);
 int ioat2_check_space_lock(struct ioat2_dma_chan *ioat, int num_descs);
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index 0284908997f8..f8170de1d6a4 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -67,6 +67,8 @@
 #include "dma.h"
 #include "dma_v2.h"
 
+extern struct kmem_cache *ioat3_sed_cache;
+
 /* ioat hardware assumes at least two sources for raid operations */
 #define src_cnt_to_sw(x) ((x) + 2)
 #define src_cnt_to_hw(x) ((x) - 2)
@@ -252,7 +254,7 @@ ioat3_alloc_sed(struct ioatdma_device *device, unsigned int hw_pool)
 	struct ioat_sed_ent *sed;
 	gfp_t flags = __GFP_ZERO | GFP_ATOMIC;
 
-	sed = kmem_cache_alloc(device->sed_pool, flags);
+	sed = kmem_cache_alloc(ioat3_sed_cache, flags);
 	if (!sed)
 		return NULL;
 
@@ -260,7 +262,7 @@ ioat3_alloc_sed(struct ioatdma_device *device, unsigned int hw_pool)
 	sed->hw = dma_pool_alloc(device->sed_hw_pool[hw_pool],
 				 flags, &sed->dma);
 	if (!sed->hw) {
-		kmem_cache_free(device->sed_pool, sed);
+		kmem_cache_free(ioat3_sed_cache, sed);
 		return NULL;
 	}
 
@@ -273,7 +275,7 @@ static void ioat3_free_sed(struct ioatdma_device *device, struct ioat_sed_ent *s
 		return;
 
 	dma_pool_free(device->sed_hw_pool[sed->hw_pool], sed->hw, sed->dma);
-	kmem_cache_free(device->sed_pool, sed);
+	kmem_cache_free(ioat3_sed_cache, sed);
 }
 
 static bool desc_has_ext(struct ioat_ring_ent *desc)
@@ -1652,21 +1654,15 @@ int ioat3_dma_probe(struct ioatdma_device *device, int dca)
 		char pool_name[14];
 		int i;
 
-		/* allocate sw descriptor pool for SED */
-		device->sed_pool = kmem_cache_create("ioat_sed",
-				sizeof(struct ioat_sed_ent), 0, 0, NULL);
-		if (!device->sed_pool)
-			return -ENOMEM;
-
 		for (i = 0; i < MAX_SED_POOLS; i++) {
 			snprintf(pool_name, 14, "ioat_hw%d_sed", i);
 
 			/* allocate SED DMA pool */
-			device->sed_hw_pool[i] = dma_pool_create(pool_name,
+			device->sed_hw_pool[i] = dmam_pool_create(pool_name,
 					&pdev->dev,
 					SED_SIZE * (i + 1), 64, 0);
 			if (!device->sed_hw_pool[i])
-				goto sed_pool_cleanup;
+				return -ENOMEM;
 
 		}
 	}
@@ -1692,28 +1688,4 @@ int ioat3_dma_probe(struct ioatdma_device *device, int dca)
 		device->dca = ioat3_dca_init(pdev, device->reg_base);
 
 	return 0;
-
-sed_pool_cleanup:
-	if (device->sed_pool) {
-		int i;
-		kmem_cache_destroy(device->sed_pool);
-
-		for (i = 0; i < MAX_SED_POOLS; i++)
-			if (device->sed_hw_pool[i])
-				dma_pool_destroy(device->sed_hw_pool[i]);
-	}
-
-	return -ENOMEM;
-}
-
-void ioat3_dma_remove(struct ioatdma_device *device)
-{
-	if (device->sed_pool) {
-		int i;
-		kmem_cache_destroy(device->sed_pool);
-
-		for (i = 0; i < MAX_SED_POOLS; i++)
-			if (device->sed_hw_pool[i])
-				dma_pool_destroy(device->sed_hw_pool[i]);
-	}
 }
diff --git a/drivers/dma/ioat/pci.c b/drivers/dma/ioat/pci.c
index 2c8d560e6334..1d051cd045db 100644
--- a/drivers/dma/ioat/pci.c
+++ b/drivers/dma/ioat/pci.c
@@ -123,6 +123,7 @@ module_param(ioat_dca_enabled, int, 0644);
 MODULE_PARM_DESC(ioat_dca_enabled, "control support of dca service (default: 1)");
 
 struct kmem_cache *ioat2_cache;
+struct kmem_cache *ioat3_sed_cache;
 
 #define DRV_NAME "ioatdma"
 
@@ -207,9 +208,6 @@ static void ioat_remove(struct pci_dev *pdev)
 	if (!device)
 		return;
 
-	if (device->version >= IOAT_VER_3_0)
-		ioat3_dma_remove(device);
-
 	dev_err(&pdev->dev, "Removing dma and dca services\n");
 	if (device->dca) {
 		unregister_dca_provider(device->dca, &pdev->dev);
@@ -221,7 +219,7 @@ static void ioat_remove(struct pci_dev *pdev)
 
 static int __init ioat_init_module(void)
 {
-	int err;
+	int err = -ENOMEM;
 
 	pr_info("%s: Intel(R) QuickData Technology Driver %s\n",
 		DRV_NAME, IOAT_DMA_VERSION);
@@ -231,9 +229,21 @@ static int __init ioat_init_module(void)
 	if (!ioat2_cache)
 		return -ENOMEM;
 
+	ioat3_sed_cache = KMEM_CACHE(ioat_sed_ent, 0);
+	if (!ioat3_sed_cache)
+		goto err_ioat2_cache;
+
 	err = pci_register_driver(&ioat_pci_driver);
 	if (err)
-		kmem_cache_destroy(ioat2_cache);
+		goto err_ioat3_cache;
+
+	return 0;
+
+ err_ioat3_cache:
+	kmem_cache_destroy(ioat3_sed_cache);
+
+ err_ioat2_cache:
+	kmem_cache_destroy(ioat2_cache);
 
 	return err;
 }
-- 
cgit 


From 09ec0f583f40bbecdf011b504dda9c1160fe0277 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 13 Nov 2013 11:22:26 -0800
Subject: raid6test: add new corner case for ioatdma driver

With 24 disks and an ioatdma instance with 16 source support there is a
corner case where the driver needs to be careful to account for the
number of implied sources in the continuation case.

Also bump the default case to test more than 16 sources now that it
triggers different paths in offload drivers.

Cc: Dave Jiang <dave.jiang@intel.com>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 crypto/async_tx/raid6test.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/crypto/async_tx/raid6test.c b/crypto/async_tx/raid6test.c
index 4a92bac744dc..dad95f45b88f 100644
--- a/crypto/async_tx/raid6test.c
+++ b/crypto/async_tx/raid6test.c
@@ -28,7 +28,7 @@
 #undef pr
 #define pr(fmt, args...) pr_info("raid6test: " fmt, ##args)
 
-#define NDISKS 16 /* Including P and Q */
+#define NDISKS 64 /* Including P and Q */
 
 static struct page *dataptrs[NDISKS];
 static addr_conv_t addr_conv[NDISKS];
@@ -219,6 +219,14 @@ static int raid6_test(void)
 		err += test(11, &tests);
 		err += test(12, &tests);
 	}
+
+	/* the 24 disk case is special for ioatdma as it is the boudary point
+	 * at which it needs to switch from 8-source ops to 16-source
+	 * ops for continuation (assumes DMA_HAS_PQ_CONTINUE is not set)
+	 */
+	if (NDISKS > 24)
+		err += test(24, &tests);
+
 	err += test(NDISKS, &tests);
 
 	pr("\n");
-- 
cgit 


From 4c5d9619e06b960d14f5640341f40e71f78801c2 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 13 Nov 2013 16:29:52 -0800
Subject: ioat: kill msix_single_vector support

Once we have determined that we will not have all of our desired msix
vectors there is no point in attempting a single msix allocation.  The
driver will already need to read registers to determine the source of
the interrupt the fact that it is msix is moot.  Fallback directly to
msi.

Reported-by: Alexander Gordeev <agordeev@redhat.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dma/ioat/dma.c    | 27 +++------------------------
 drivers/dma/ioat/dma.h    |  1 -
 drivers/dma/ioat/dma_v3.c |  7 -------
 3 files changed, 3 insertions(+), 32 deletions(-)

diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index 6fcf741ad91b..fb879d9f026f 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -869,8 +869,7 @@ static char ioat_interrupt_style[32] = "msix";
 module_param_string(ioat_interrupt_style, ioat_interrupt_style,
 		    sizeof(ioat_interrupt_style), 0644);
 MODULE_PARM_DESC(ioat_interrupt_style,
-		 "set ioat interrupt style: msix (default), "
-		 "msix-single-vector, msi, intx)");
+		 "set ioat interrupt style: msix (default), msi, intx");
 
 /**
  * ioat_dma_setup_interrupts - setup interrupt handler
@@ -888,8 +887,6 @@ int ioat_dma_setup_interrupts(struct ioatdma_device *device)
 
 	if (!strcmp(ioat_interrupt_style, "msix"))
 		goto msix;
-	if (!strcmp(ioat_interrupt_style, "msix-single-vector"))
-		goto msix_single_vector;
 	if (!strcmp(ioat_interrupt_style, "msi"))
 		goto msi;
 	if (!strcmp(ioat_interrupt_style, "intx"))
@@ -904,10 +901,8 @@ msix:
 		device->msix_entries[i].entry = i;
 
 	err = pci_enable_msix(pdev, device->msix_entries, msixcnt);
-	if (err < 0)
+	if (err)
 		goto msi;
-	if (err > 0)
-		goto msix_single_vector;
 
 	for (i = 0; i < msixcnt; i++) {
 		msix = &device->msix_entries[i];
@@ -921,29 +916,13 @@ msix:
 				chan = ioat_chan_by_index(device, j);
 				devm_free_irq(dev, msix->vector, chan);
 			}
-			goto msix_single_vector;
+			goto msi;
 		}
 	}
 	intrctrl |= IOAT_INTRCTRL_MSIX_VECTOR_CONTROL;
 	device->irq_mode = IOAT_MSIX;
 	goto done;
 
-msix_single_vector:
-	msix = &device->msix_entries[0];
-	msix->entry = 0;
-	err = pci_enable_msix(pdev, device->msix_entries, 1);
-	if (err)
-		goto msi;
-
-	err = devm_request_irq(dev, msix->vector, ioat_dma_do_interrupt, 0,
-			       "ioat-msix", device);
-	if (err) {
-		pci_disable_msix(pdev);
-		goto msi;
-	}
-	device->irq_mode = IOAT_MSIX_SINGLE;
-	goto done;
-
 msi:
 	err = pci_enable_msi(pdev);
 	if (err)
diff --git a/drivers/dma/ioat/dma.h b/drivers/dma/ioat/dma.h
index df552d841481..11fb877ddca9 100644
--- a/drivers/dma/ioat/dma.h
+++ b/drivers/dma/ioat/dma.h
@@ -52,7 +52,6 @@
 enum ioat_irq_mode {
 	IOAT_NOIRQ = 0,
 	IOAT_MSIX,
-	IOAT_MSIX_SINGLE,
 	IOAT_MSI,
 	IOAT_INTX
 };
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index f8170de1d6a4..38616634780f 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -1468,13 +1468,6 @@ static int ioat3_irq_reinit(struct ioatdma_device *device)
 		pci_disable_msix(pdev);
 		break;
 
-	case IOAT_MSIX_SINGLE:
-		msix = &device->msix_entries[0];
-		chan = ioat_chan_by_index(device, 0);
-		devm_free_irq(&pdev->dev, msix->vector, chan);
-		pci_disable_msix(pdev);
-		break;
-
 	case IOAT_MSI:
 		chan = ioat_chan_by_index(device, 0);
 		devm_free_irq(&pdev->dev, pdev->irq, chan);
-- 
cgit 


From 779e561ae2627727ea3d797a7db2496e8bae3430 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Wed, 13 Nov 2013 16:30:43 -0800
Subject: ioat: fix ioat3_irq_reinit

The implementation of ioat3_irq_reinit has two bugs:

1/ The mode is incorrectly set to MSIX for the MSI case

2/ The 'dev_id' parameter to free_irq is the ioatdma_device not the channel in
   the msi and intx case

Include a small cleanup to clarify that ioat3_irq_reinit is only for bwd
hardware

Cc: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dma/ioat/dma.c    |  2 +-
 drivers/dma/ioat/dma_v3.c | 39 ++++++++++++++-------------------------
 2 files changed, 15 insertions(+), 26 deletions(-)

diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index fb879d9f026f..4f67473f3b81 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -934,7 +934,7 @@ msi:
 		pci_disable_msi(pdev);
 		goto intx;
 	}
-	device->irq_mode = IOAT_MSIX;
+	device->irq_mode = IOAT_MSI;
 	goto done;
 
 intx:
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c
index 38616634780f..915b1f66f2da 100644
--- a/drivers/dma/ioat/dma_v3.c
+++ b/drivers/dma/ioat/dma_v3.c
@@ -1449,45 +1449,36 @@ static int ioat3_dma_self_test(struct ioatdma_device *device)
 
 static int ioat3_irq_reinit(struct ioatdma_device *device)
 {
-	int msixcnt = device->common.chancnt;
 	struct pci_dev *pdev = device->pdev;
-	int i;
-	struct msix_entry *msix;
-	struct ioat_chan_common *chan;
-	int err = 0;
+	int irq = pdev->irq, i;
+
+	if (!is_bwd_ioat(pdev))
+		return 0;
 
 	switch (device->irq_mode) {
 	case IOAT_MSIX:
+		for (i = 0; i < device->common.chancnt; i++) {
+			struct msix_entry *msix = &device->msix_entries[i];
+			struct ioat_chan_common *chan;
 
-		for (i = 0; i < msixcnt; i++) {
-			msix = &device->msix_entries[i];
 			chan = ioat_chan_by_index(device, i);
 			devm_free_irq(&pdev->dev, msix->vector, chan);
 		}
 
 		pci_disable_msix(pdev);
 		break;
-
 	case IOAT_MSI:
-		chan = ioat_chan_by_index(device, 0);
-		devm_free_irq(&pdev->dev, pdev->irq, chan);
 		pci_disable_msi(pdev);
-		break;
-
+		/* fall through */
 	case IOAT_INTX:
-		chan = ioat_chan_by_index(device, 0);
-		devm_free_irq(&pdev->dev, pdev->irq, chan);
+		devm_free_irq(&pdev->dev, irq, device);
 		break;
-
 	default:
 		return 0;
 	}
-
 	device->irq_mode = IOAT_NOIRQ;
 
-	err = ioat_dma_setup_interrupts(device);
-
-	return err;
+	return ioat_dma_setup_interrupts(device);
 }
 
 static int ioat3_reset_hw(struct ioat_chan_common *chan)
@@ -1530,14 +1521,12 @@ static int ioat3_reset_hw(struct ioat_chan_common *chan)
 	}
 
 	err = ioat2_reset_sync(chan, msecs_to_jiffies(200));
-	if (err) {
-		dev_err(&pdev->dev, "Failed to reset!\n");
-		return err;
-	}
-
-	if (device->irq_mode != IOAT_NOIRQ && is_bwd_ioat(pdev))
+	if (!err)
 		err = ioat3_irq_reinit(device);
 
+	if (err)
+		dev_err(&pdev->dev, "Failed to reset: %d\n", err);
+
 	return err;
 }
 
-- 
cgit 


From a911ddc9a0ecbf77a8b2e78dc5c40e5b7bb40d24 Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Wed, 30 Oct 2013 12:01:42 -0300
Subject: dma: mv_xor: Remove unneeded NULL address check

This mmio address is checked at probe-time, which makes this test
redundant. Let's just remove it.

Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dma/mv_xor.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index 17326e780e23..8ff21b15ad1c 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -1035,10 +1035,6 @@ mv_xor_channel_add(struct mv_xor_device *xordev,
 	}
 
 	mv_chan->mmr_base = xordev->xor_base;
-	if (!mv_chan->mmr_base) {
-		ret = -ENOMEM;
-		goto err_free_dma;
-	}
 	tasklet_init(&mv_chan->irq_tasklet, mv_xor_tasklet, (unsigned long)
 		     mv_chan);
 
-- 
cgit 


From 82a1402eaee5dab1f3ab2d5aa4c316451374c5af Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Wed, 30 Oct 2013 12:01:43 -0300
Subject: dma: mv_xor: Fix mis-usage of mmio 'base' and 'high_base' registers

Despite requesting two memory resources, called 'base' and 'high_base', the
driver uses explicitly only the former. The latter is being used implicitly
by addressing at offset +0x200, which in practice accesses high_base.

In other words, the current driver breaks if the second memory resource
is ever place at an offset different from +0x200.

This patch fixes the above by defining the registers with the offset from
high_base, and use high_base explicitly where appropriate.

Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 drivers/dma/mv_xor.c |  3 ++-
 drivers/dma/mv_xor.h | 25 +++++++++++++------------
 2 files changed, 15 insertions(+), 13 deletions(-)

diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index 8ff21b15ad1c..1b846d5d8408 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -1035,6 +1035,7 @@ mv_xor_channel_add(struct mv_xor_device *xordev,
 	}
 
 	mv_chan->mmr_base = xordev->xor_base;
+	mv_chan->mmr_high_base = xordev->xor_high_base;
 	tasklet_init(&mv_chan->irq_tasklet, mv_xor_tasklet, (unsigned long)
 		     mv_chan);
 
@@ -1093,7 +1094,7 @@ static void
 mv_xor_conf_mbus_windows(struct mv_xor_device *xordev,
 			 const struct mbus_dram_target_info *dram)
 {
-	void __iomem *base = xordev->xor_base;
+	void __iomem *base = xordev->xor_high_base;
 	u32 win_enable = 0;
 	int i;
 
diff --git a/drivers/dma/mv_xor.h b/drivers/dma/mv_xor.h
index 06b067f24c9b..d0749229c875 100644
--- a/drivers/dma/mv_xor.h
+++ b/drivers/dma/mv_xor.h
@@ -34,13 +34,13 @@
 #define XOR_OPERATION_MODE_MEMCPY	2
 #define XOR_DESCRIPTOR_SWAP		BIT(14)
 
-#define XOR_CURR_DESC(chan)	(chan->mmr_base + 0x210 + (chan->idx * 4))
-#define XOR_NEXT_DESC(chan)	(chan->mmr_base + 0x200 + (chan->idx * 4))
-#define XOR_BYTE_COUNT(chan)	(chan->mmr_base + 0x220 + (chan->idx * 4))
-#define XOR_DEST_POINTER(chan)	(chan->mmr_base + 0x2B0 + (chan->idx * 4))
-#define XOR_BLOCK_SIZE(chan)	(chan->mmr_base + 0x2C0 + (chan->idx * 4))
-#define XOR_INIT_VALUE_LOW(chan)	(chan->mmr_base + 0x2E0)
-#define XOR_INIT_VALUE_HIGH(chan)	(chan->mmr_base + 0x2E4)
+#define XOR_CURR_DESC(chan)	(chan->mmr_high_base + 0x10 + (chan->idx * 4))
+#define XOR_NEXT_DESC(chan)	(chan->mmr_high_base + 0x00 + (chan->idx * 4))
+#define XOR_BYTE_COUNT(chan)	(chan->mmr_high_base + 0x20 + (chan->idx * 4))
+#define XOR_DEST_POINTER(chan)	(chan->mmr_high_base + 0xB0 + (chan->idx * 4))
+#define XOR_BLOCK_SIZE(chan)	(chan->mmr_high_base + 0xC0 + (chan->idx * 4))
+#define XOR_INIT_VALUE_LOW(chan)	(chan->mmr_high_base + 0xE0)
+#define XOR_INIT_VALUE_HIGH(chan)	(chan->mmr_high_base + 0xE4)
 
 #define XOR_CONFIG(chan)	(chan->mmr_base + 0x10 + (chan->idx * 4))
 #define XOR_ACTIVATION(chan)	(chan->mmr_base + 0x20 + (chan->idx * 4))
@@ -50,11 +50,11 @@
 #define XOR_ERROR_ADDR(chan)	(chan->mmr_base + 0x60)
 #define XOR_INTR_MASK_VALUE	0x3F5
 
-#define WINDOW_BASE(w)		(0x250 + ((w) << 2))
-#define WINDOW_SIZE(w)		(0x270 + ((w) << 2))
-#define WINDOW_REMAP_HIGH(w)	(0x290 + ((w) << 2))
-#define WINDOW_BAR_ENABLE(chan)	(0x240 + ((chan) << 2))
-#define WINDOW_OVERRIDE_CTRL(chan)	(0x2A0 + ((chan) << 2))
+#define WINDOW_BASE(w)		(0x50 + ((w) << 2))
+#define WINDOW_SIZE(w)		(0x70 + ((w) << 2))
+#define WINDOW_REMAP_HIGH(w)	(0x90 + ((w) << 2))
+#define WINDOW_BAR_ENABLE(chan)	(0x40 + ((chan) << 2))
+#define WINDOW_OVERRIDE_CTRL(chan)	(0xA0 + ((chan) << 2))
 
 struct mv_xor_device {
 	void __iomem	     *xor_base;
@@ -82,6 +82,7 @@ struct mv_xor_chan {
 	int			pending;
 	spinlock_t		lock; /* protects the descriptor slot pool */
 	void __iomem		*mmr_base;
+	void __iomem		*mmr_high_base;
 	unsigned int		idx;
 	int                     irq;
 	enum dma_transaction_type	current_type;
-- 
cgit 


From 35e17b2450e09968f9702d4048c228199af171bc Mon Sep 17 00:00:00 2001
From: Azat Khuzhin <a3at.mail@gmail.com>
Date: Mon, 28 Oct 2013 12:04:24 +0400
Subject: perf probe: Add '--demangle'/'--no-demangle'

You can't pass demangled name into "perf probe", because of special chars:
./perf probe -f -x /tmp/a.out 'foo(int)'
Semantic error :There is non-digit char in line number.

And you can't even pass without demangling (because it search symbol in
DSO with demangle=true):
./perf probe -f -x /tmp/a.out _Z3fooi
no symbols found in /tmp/a.out, maybe install a debug package?

However:
nm /tmp/a.out | grep foo
000000000040056d T _Z3fooi

After this patch, using the next command:
./perf probe -f --no-demangle -x /tmp/a.out _Z3fooi

probe will be successfully added.

Signed-off-by: Azat Khuzhin <a3at.mail@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1382947464-31266-1-git-send-email-a3at.mail@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/builtin-probe.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index 89acc17cf2a0..6ea9e85bdc00 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -325,6 +325,8 @@ int cmd_probe(int argc, const char **argv, const char *prefix __maybe_unused)
 		     opt_set_filter),
 	OPT_CALLBACK('x', "exec", NULL, "executable|path",
 			"target executable name or path", opt_set_target),
+	OPT_BOOLEAN(0, "demangle", &symbol_conf.demangle,
+		    "Disable symbol demangling"),
 	OPT_END()
 	};
 	int ret;
-- 
cgit 


From 539e6bb71e350541105e67e3d6c31392d9da25ef Mon Sep 17 00:00:00 2001
From: Adrian Hunter <adrian.hunter@intel.com>
Date: Fri, 1 Nov 2013 15:51:34 +0200
Subject: perf record: Add an option to force per-cpu mmaps

By default, when tasks are specified (i.e. -p, -t or -u options)
per-thread mmaps are created.

Add an option to override that and force per-cpu mmaps.

Further comments by peterz:

So this option allows -t/-p/-u to create one buffer per cpu and attach
all the various thread/process/user tasks' their counters to that one
buffer?

As opposed to the current state where each such counter would have its
own buffer.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1383313899-15987-7-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Documentation/perf-record.txt | 6 ++++++
 tools/perf/builtin-record.c              | 2 ++
 tools/perf/util/evlist.c                 | 4 +++-
 tools/perf/util/evsel.c                  | 4 ++--
 tools/perf/util/target.h                 | 1 +
 5 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/tools/perf/Documentation/perf-record.txt b/tools/perf/Documentation/perf-record.txt
index 052f7c4dc00c..43b42c4f4a91 100644
--- a/tools/perf/Documentation/perf-record.txt
+++ b/tools/perf/Documentation/perf-record.txt
@@ -201,6 +201,12 @@ abort events and some memory events in precise mode on modern Intel CPUs.
 --transaction::
 Record transaction flags for transaction related events.
 
+--force-per-cpu::
+Force the use of per-cpu mmaps.  By default, when tasks are specified (i.e. -p,
+-t or -u options) per-thread mmaps are created.  This option overrides that and
+forces per-cpu mmaps.  A side-effect of that is that inheritance is
+automatically enabled.  Add the -i option also to disable inheritance.
+
 SEE ALSO
 --------
 linkperf:perf-stat[1], linkperf:perf-list[1]
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 4d644fe2d5b7..7c8020a32784 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -888,6 +888,8 @@ const struct option record_options[] = {
 		    "sample by weight (on special events only)"),
 	OPT_BOOLEAN(0, "transaction", &record.opts.sample_transaction,
 		    "sample transaction flags (special events only)"),
+	OPT_BOOLEAN(0, "force-per-cpu", &record.opts.target.force_per_cpu,
+		    "force the use of per-cpu mmaps"),
 	OPT_END()
 };
 
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index 5ce2ace2d6c1..bbc746aa5716 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -819,7 +819,9 @@ int perf_evlist__create_maps(struct perf_evlist *evlist, struct target *target)
 	if (evlist->threads == NULL)
 		return -1;
 
-	if (target__has_task(target))
+	if (target->force_per_cpu)
+		evlist->cpus = cpu_map__new(target->cpu_list);
+	else if (target__has_task(target))
 		evlist->cpus = cpu_map__dummy_new();
 	else if (!target__has_cpu(target) && !target->uses_mmap)
 		evlist->cpus = cpu_map__dummy_new();
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 18f7c188ff63..46dd4c2a41ce 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -645,7 +645,7 @@ void perf_evsel__config(struct perf_evsel *evsel,
 		}
 	}
 
-	if (target__has_cpu(&opts->target))
+	if (target__has_cpu(&opts->target) || opts->target.force_per_cpu)
 		perf_evsel__set_sample_bit(evsel, CPU);
 
 	if (opts->period)
@@ -653,7 +653,7 @@ void perf_evsel__config(struct perf_evsel *evsel,
 
 	if (!perf_missing_features.sample_id_all &&
 	    (opts->sample_time || !opts->no_inherit ||
-	     target__has_cpu(&opts->target)))
+	     target__has_cpu(&opts->target) || opts->target.force_per_cpu))
 		perf_evsel__set_sample_bit(evsel, TIME);
 
 	if (opts->raw_samples) {
diff --git a/tools/perf/util/target.h b/tools/perf/util/target.h
index 89bab7129de4..2d0c50690892 100644
--- a/tools/perf/util/target.h
+++ b/tools/perf/util/target.h
@@ -12,6 +12,7 @@ struct target {
 	uid_t	     uid;
 	bool	     system_wide;
 	bool	     uses_mmap;
+	bool	     force_per_cpu;
 };
 
 enum target_errno {
-- 
cgit 


From 4d715a805b6dd8989cac57b70066bfec0ae413ed Mon Sep 17 00:00:00 2001
From: Aristeu Rozanski <arozansk@redhat.com>
Date: Wed, 30 Oct 2013 13:27:06 -0300
Subject: sb_edac: add support for Ivy Bridge

Since Ivy Bridge memory controller is very similar to Sandy Bridge, it's
wiser to modify sb_edac to support both instead of creating another
driver.

[m.chehab@samsung.com: Fix CodingStyle]
Signed-off-by: Aristeu Rozanski <arozansk@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/edac/sb_edac.c | 446 +++++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 376 insertions(+), 70 deletions(-)

diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c
index 90a62ffda626..a290f562949c 100644
--- a/drivers/edac/sb_edac.c
+++ b/drivers/edac/sb_edac.c
@@ -34,7 +34,7 @@ static int probed;
 /*
  * Alter this version for the module when modifications are made
  */
-#define SBRIDGE_REVISION    " Ver: 1.0.0 "
+#define SBRIDGE_REVISION    " Ver: 1.1.0 "
 #define EDAC_MOD_STR      "sbridge_edac"
 
 /*
@@ -88,6 +88,13 @@ static const u32 sbridge_dram_rule[] = {
 	0xa8, 0xb0, 0xb8, 0xc0, 0xc8,
 };
 
+static const u32 ibridge_dram_rule[] = {
+	0x60, 0x68, 0x70, 0x78, 0x80,
+	0x88, 0x90, 0x98, 0xa0,	0xa8,
+	0xb0, 0xb8, 0xc0, 0xc8, 0xd0,
+	0xd8, 0xe0, 0xe8, 0xf0, 0xf8,
+};
+
 #define SAD_LIMIT(reg)		((GET_BITFIELD(reg, 6, 25) << 26) | 0x3ffffff)
 #define DRAM_ATTR(reg)		GET_BITFIELD(reg, 2,  3)
 #define INTERLEAVE_MODE(reg)	GET_BITFIELD(reg, 1,  1)
@@ -112,6 +119,13 @@ static const u32 sbridge_interleave_list[] = {
 	0xac, 0xb4, 0xbc, 0xc4, 0xcc,
 };
 
+static const u32 ibridge_interleave_list[] = {
+	0x64, 0x6c, 0x74, 0x7c, 0x84,
+	0x8c, 0x94, 0x9c, 0xa4, 0xac,
+	0xb4, 0xbc, 0xc4, 0xcc, 0xd4,
+	0xdc, 0xe4, 0xec, 0xf4, 0xfc,
+};
+
 struct interleave_pkg {
 	unsigned char start;
 	unsigned char end;
@@ -128,6 +142,17 @@ static const struct interleave_pkg sbridge_interleave_pkg[] = {
 	{ 27, 29 },
 };
 
+static const struct interleave_pkg ibridge_interleave_pkg[] = {
+	{ 0, 3 },
+	{ 4, 7 },
+	{ 8, 11 },
+	{ 12, 15 },
+	{ 16, 19 },
+	{ 20, 23 },
+	{ 24, 27 },
+	{ 28, 31 },
+};
+
 static inline int sad_pkg(const struct interleave_pkg *table, u32 reg,
 			  int interleave)
 {
@@ -252,6 +277,8 @@ static const u32 correrrthrsld[] = {
 
 #define SB_RANK_CFG_A		0x0328
 
+#define IB_RANK_CFG_A		0x0320
+
 #define IS_RDIMM_ENABLED(reg)		GET_BITFIELD(reg, 11, 11)
 
 /*
@@ -261,8 +288,14 @@ static const u32 correrrthrsld[] = {
 #define NUM_CHANNELS	4
 #define MAX_DIMMS	3		/* Max DIMMS per channel */
 
+enum type {
+	SANDY_BRIDGE,
+	IVY_BRIDGE,
+};
+
 struct sbridge_pvt;
 struct sbridge_info {
+	enum type	type;
 	u32		mcmtr;
 	u32		rankcfgr;
 	u64		(*get_tolm)(struct sbridge_pvt *pvt);
@@ -302,8 +335,9 @@ struct sbridge_dev {
 
 struct sbridge_pvt {
 	struct pci_dev		*pci_ta, *pci_ddrio, *pci_ras;
-	struct pci_dev		*pci_sad0, *pci_sad1, *pci_ha0;
-	struct pci_dev		*pci_br0;
+	struct pci_dev		*pci_sad0, *pci_sad1;
+	struct pci_dev		*pci_ha0, *pci_ha1;
+	struct pci_dev		*pci_br0, *pci_br1;
 	struct pci_dev		*pci_tad[NUM_CHANNELS];
 
 	struct sbridge_dev	*sbridge_dev;
@@ -361,11 +395,75 @@ static const struct pci_id_table pci_dev_descr_sbridge_table[] = {
 	{0,}			/* 0 terminated list. */
 };
 
+/* This changes depending if 1HA or 2HA:
+ * 1HA:
+ *	0x0eb8 (17.0) is DDRIO0
+ * 2HA:
+ *	0x0ebc (17.4) is DDRIO0
+ */
+#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_1HA_DDRIO0	0x0eb8
+#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_2HA_DDRIO0	0x0ebc
+
+/* pci ids */
+#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0		0x0ea0
+#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA		0x0ea8
+#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_RAS		0x0e71
+#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD0	0x0eaa
+#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD1	0x0eab
+#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD2	0x0eac
+#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD3	0x0ead
+#define PCI_DEVICE_ID_INTEL_IBRIDGE_SAD			0x0ec8
+#define PCI_DEVICE_ID_INTEL_IBRIDGE_BR0			0x0ec9
+#define PCI_DEVICE_ID_INTEL_IBRIDGE_BR1			0x0eca
+#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1		0x0e60
+#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TA		0x0e68
+#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_RAS		0x0e79
+#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TAD0	0x0e6a
+#define PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TAD1	0x0e6b
+
+static const struct pci_id_descr pci_dev_descr_ibridge[] = {
+		/* Processor Home Agent */
+	{ PCI_DESCR(14, 0, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0, 0)	},
+
+		/* Memory controller */
+	{ PCI_DESCR(15, 0, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA, 0)	},
+	{ PCI_DESCR(15, 1, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_RAS, 0)	},
+	{ PCI_DESCR(15, 2, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD0, 0)	},
+	{ PCI_DESCR(15, 3, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD1, 0)	},
+	{ PCI_DESCR(15, 4, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD2, 0)	},
+	{ PCI_DESCR(15, 5, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TAD3, 0)	},
+
+		/* System Address Decoder */
+	{ PCI_DESCR(22, 0, PCI_DEVICE_ID_INTEL_IBRIDGE_SAD, 0)		},
+
+		/* Broadcast Registers */
+	{ PCI_DESCR(22, 1, PCI_DEVICE_ID_INTEL_IBRIDGE_BR0, 1)		},
+	{ PCI_DESCR(22, 2, PCI_DEVICE_ID_INTEL_IBRIDGE_BR1, 0)		},
+
+		/* Optional, mode 2HA */
+	{ PCI_DESCR(28, 0, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1, 1)	},
+#if 0
+	{ PCI_DESCR(29, 0, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TA, 1)	},
+	{ PCI_DESCR(29, 1, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_RAS, 1)	},
+#endif
+	{ PCI_DESCR(29, 2, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TAD0, 1)	},
+	{ PCI_DESCR(29, 3, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1_TAD1, 1)	},
+
+	{ PCI_DESCR(17, 0, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_1HA_DDRIO0, 1) },
+	{ PCI_DESCR(17, 4, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_2HA_DDRIO0, 1) },
+};
+
+static const struct pci_id_table pci_dev_descr_ibridge_table[] = {
+	PCI_ID_TABLE_ENTRY(pci_dev_descr_ibridge),
+	{0,}			/* 0 terminated list. */
+};
+
 /*
  *	pci_device_id	table for which devices we are looking for
  */
 static DEFINE_PCI_DEVICE_TABLE(sbridge_pci_tbl) = {
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_SBRIDGE_IMC_TA)},
+	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA)},
 	{0,}			/* 0 terminated list. */
 };
 
@@ -472,6 +570,35 @@ static u64 sbridge_get_tohm(struct sbridge_pvt *pvt)
 	return GET_TOHM(reg);
 }
 
+static u64 ibridge_get_tolm(struct sbridge_pvt *pvt)
+{
+	u32 reg;
+
+	pci_read_config_dword(pvt->pci_br1, TOLM, &reg);
+
+	return GET_TOLM(reg);
+}
+
+static u64 ibridge_get_tohm(struct sbridge_pvt *pvt)
+{
+	u32 reg;
+
+	pci_read_config_dword(pvt->pci_br1, TOHM, &reg);
+
+	return GET_TOHM(reg);
+}
+
+static inline u8 sad_pkg_socket(u8 pkg)
+{
+	/* on Ivy Bridge, nodeID is SASS, where A is HA and S is node id */
+	return (pkg >> 3) | (pkg & 0x3);
+}
+
+static inline u8 sad_pkg_ha(u8 pkg)
+{
+	return (pkg >> 2) & 0x1;
+}
+
 /****************************************************************************
 			Memory check routines
  ****************************************************************************/
@@ -534,8 +661,6 @@ static int get_dimm_config(struct mem_ctl_info *mci)
 	enum edac_type mode;
 	enum mem_type mtype;
 
-	pvt->info.rankcfgr = SB_RANK_CFG_A;
-
 	pci_read_config_dword(pvt->pci_br0, SAD_TARGET, &reg);
 	pvt->sbridge_dev->source_id = SOURCE_ID(reg);
 
@@ -810,12 +935,13 @@ static int get_memory_error_data(struct mem_ctl_info *mci,
 {
 	struct mem_ctl_info	*new_mci;
 	struct sbridge_pvt *pvt = mci->pvt_info;
+	struct pci_dev		*pci_ha;
 	int 			n_rir, n_sads, n_tads, sad_way, sck_xch;
 	int			sad_interl, idx, base_ch;
 	int			interleave_mode;
 	unsigned		sad_interleave[pvt->info.max_interleave];
 	u32			reg;
-	u8			ch_way,sck_way;
+	u8			ch_way, sck_way, pkg, sad_ha = 0;
 	u32			tad_offset;
 	u32			rir_way;
 	u32			mb, kb;
@@ -866,45 +992,56 @@ static int get_memory_error_data(struct mem_ctl_info *mci,
 
 	pci_read_config_dword(pvt->pci_sad0, pvt->info.interleave_list[n_sads],
 			      &reg);
-	sad_interl = sad_pkg(pvt->info.interleave_pkg, reg, 0);
-	for (sad_way = 0; sad_way < 8; sad_way++) {
-		u32 pkg = sad_pkg(pvt->info.interleave_pkg, reg, sad_way);
-		if (sad_way > 0 && sad_interl == pkg)
+
+	if (pvt->info.type == SANDY_BRIDGE) {
+		sad_interl = sad_pkg(pvt->info.interleave_pkg, reg, 0);
+		for (sad_way = 0; sad_way < 8; sad_way++) {
+			u32 pkg = sad_pkg(pvt->info.interleave_pkg, reg, sad_way);
+			if (sad_way > 0 && sad_interl == pkg)
+				break;
+			sad_interleave[sad_way] = pkg;
+			edac_dbg(0, "SAD interleave #%d: %d\n",
+				 sad_way, sad_interleave[sad_way]);
+		}
+		edac_dbg(0, "mc#%d: Error detected on SAD#%d: address 0x%016Lx < 0x%016Lx, Interleave [%d:6]%s\n",
+			 pvt->sbridge_dev->mc,
+			 n_sads,
+			 addr,
+			 limit,
+			 sad_way + 7,
+			 !interleave_mode ? "" : "XOR[18:16]");
+		if (interleave_mode)
+			idx = ((addr >> 6) ^ (addr >> 16)) & 7;
+		else
+			idx = (addr >> 6) & 7;
+		switch (sad_way) {
+		case 1:
+			idx = 0;
 			break;
-		sad_interleave[sad_way] = pkg;
-		edac_dbg(0, "SAD interleave #%d: %d\n",
-			 sad_way, sad_interleave[sad_way]);
-	}
-	edac_dbg(0, "mc#%d: Error detected on SAD#%d: address 0x%016Lx < 0x%016Lx, Interleave [%d:6]%s\n",
-		 pvt->sbridge_dev->mc,
-		 n_sads,
-		 addr,
-		 limit,
-		 sad_way + 7,
-		 interleave_mode ? "" : "XOR[18:16]");
-	if (interleave_mode)
-		idx = ((addr >> 6) ^ (addr >> 16)) & 7;
-	else
+		case 2:
+			idx = idx & 1;
+			break;
+		case 4:
+			idx = idx & 3;
+			break;
+		case 8:
+			break;
+		default:
+			sprintf(msg, "Can't discover socket interleave");
+			return -EINVAL;
+		}
+		*socket = sad_interleave[idx];
+		edac_dbg(0, "SAD interleave index: %d (wayness %d) = CPU socket %d\n",
+			 idx, sad_way, *socket);
+	} else {
+		/* Ivy Bridge's SAD mode doesn't support XOR interleave mode */
 		idx = (addr >> 6) & 7;
-	switch (sad_way) {
-	case 1:
-		idx = 0;
-		break;
-	case 2:
-		idx = idx & 1;
-		break;
-	case 4:
-		idx = idx & 3;
-		break;
-	case 8:
-		break;
-	default:
-		sprintf(msg, "Can't discover socket interleave");
-		return -EINVAL;
+		pkg = sad_pkg(pvt->info.interleave_pkg, reg, idx);
+		*socket = sad_pkg_socket(pkg);
+		sad_ha = sad_pkg_ha(pkg);
+		edac_dbg(0, "SAD interleave package: %d = CPU socket %d, HA %d\n",
+			 idx, *socket, sad_ha);
 	}
-	*socket = sad_interleave[idx];
-	edac_dbg(0, "SAD interleave index: %d (wayness %d) = CPU socket %d\n",
-		 idx, sad_way, *socket);
 
 	/*
 	 * Move to the proper node structure, in order to access the
@@ -923,9 +1060,16 @@ static int get_memory_error_data(struct mem_ctl_info *mci,
 	 * Step 2) Get memory channel
 	 */
 	prv = 0;
+	if (pvt->info.type == SANDY_BRIDGE)
+		pci_ha = pvt->pci_ha0;
+	else {
+		if (sad_ha)
+			pci_ha = pvt->pci_ha1;
+		else
+			pci_ha = pvt->pci_ha0;
+	}
 	for (n_tads = 0; n_tads < MAX_TAD; n_tads++) {
-		pci_read_config_dword(pvt->pci_ha0, tad_dram_rule[n_tads],
-				      &reg);
+		pci_read_config_dword(pci_ha, tad_dram_rule[n_tads], &reg);
 		limit = TAD_LIMIT(reg);
 		if (limit <= prv) {
 			sprintf(msg, "Can't discover the memory channel");
@@ -935,14 +1079,13 @@ static int get_memory_error_data(struct mem_ctl_info *mci,
 			break;
 		prv = limit;
 	}
+	if (n_tads == MAX_TAD) {
+		sprintf(msg, "Can't discover the memory channel");
+		return -EINVAL;
+	}
+
 	ch_way = TAD_CH(reg) + 1;
 	sck_way = TAD_SOCK(reg) + 1;
-	/*
-	 * FIXME: Is it right to always use channel 0 for offsets?
-	 */
-	pci_read_config_dword(pvt->pci_tad[0],
-				tad_ch_nilv_offset[n_tads],
-				&tad_offset);
 
 	if (ch_way == 3)
 		idx = addr >> 6;
@@ -972,6 +1115,10 @@ static int get_memory_error_data(struct mem_ctl_info *mci,
 	}
 	*channel_mask = 1 << base_ch;
 
+	pci_read_config_dword(pvt->pci_tad[base_ch],
+				tad_ch_nilv_offset[n_tads],
+				&tad_offset);
+
 	if (pvt->is_mirrored) {
 		*channel_mask |= 1 << ((base_ch + 2) % 4);
 		switch(ch_way) {
@@ -1347,6 +1494,131 @@ error:
 	return -EINVAL;
 }
 
+static int ibridge_mci_bind_devs(struct mem_ctl_info *mci,
+				 struct sbridge_dev *sbridge_dev)
+{
+	struct sbridge_pvt *pvt = mci->pvt_info;
+	struct pci_dev *pdev, *tmp;
+	int i, func, slot;
+	bool mode_2ha = false;
+
+	tmp = pci_get_device(PCI_VENDOR_ID_INTEL,
+			     PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA1, NULL);
+	if (tmp) {
+		mode_2ha = true;
+		pci_dev_put(tmp);
+	}
+
+	for (i = 0; i < sbridge_dev->n_devs; i++) {
+		pdev = sbridge_dev->pdev[i];
+		if (!pdev)
+			continue;
+		slot = PCI_SLOT(pdev->devfn);
+		func = PCI_FUNC(pdev->devfn);
+
+		switch (slot) {
+		case 14:
+			if (func == 0) {
+				pvt->pci_ha0 = pdev;
+				break;
+			}
+			goto error;
+		case 15:
+			switch (func) {
+			case 0:
+				pvt->pci_ta = pdev;
+				break;
+			case 1:
+				pvt->pci_ras = pdev;
+				break;
+			case 4:
+			case 5:
+				/* if we have 2 HAs active, channels 2 and 3
+				 * are in other device */
+				if (mode_2ha)
+					break;
+				/* fall through */
+			case 2:
+			case 3:
+				pvt->pci_tad[func - 2] = pdev;
+				break;
+			default:
+				goto error;
+			}
+			break;
+		case 17:
+			if (func == 4) {
+				pvt->pci_ddrio = pdev;
+				break;
+			} else if (func == 0) {
+				if (!mode_2ha)
+					pvt->pci_ddrio = pdev;
+				break;
+			}
+			goto error;
+		case 22:
+			switch (func) {
+			case 0:
+				pvt->pci_sad0 = pdev;
+				break;
+			case 1:
+				pvt->pci_br0 = pdev;
+				break;
+			case 2:
+				pvt->pci_br1 = pdev;
+				break;
+			default:
+				goto error;
+			}
+			break;
+		case 28:
+			if (func == 0) {
+				pvt->pci_ha1 = pdev;
+				break;
+			}
+			goto error;
+		case 29:
+			/* we shouldn't have this device if we have just one
+			 * HA present */
+			WARN_ON(!mode_2ha);
+			if (func == 2 || func == 3) {
+				pvt->pci_tad[func] = pdev;
+				break;
+			}
+			goto error;
+		default:
+			goto error;
+		}
+
+		edac_dbg(0, "Associated PCI %02x.%02d.%d with dev = %p\n",
+			 sbridge_dev->bus,
+			 PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn),
+			 pdev);
+	}
+
+	/* Check if everything were registered */
+	if (!pvt->pci_sad0 || !pvt->pci_ha0 || !pvt->pci_br0 ||
+	    !pvt->pci_br1 || !pvt->pci_tad || !pvt->pci_ras  ||
+	    !pvt->pci_ta)
+		goto enodev;
+
+	for (i = 0; i < NUM_CHANNELS; i++) {
+		if (!pvt->pci_tad[i])
+			goto enodev;
+	}
+	return 0;
+
+enodev:
+	sbridge_printk(KERN_ERR, "Some needed devices are missing\n");
+	return -ENODEV;
+
+error:
+	sbridge_printk(KERN_ERR,
+		       "Device %d, function %d is out of the expected range\n",
+		       slot, func);
+	return -EINVAL;
+}
+
 /****************************************************************************
 			Error check routines
  ****************************************************************************/
@@ -1367,7 +1639,7 @@ static void sbridge_mce_output_error(struct mem_ctl_info *mci,
 	bool ripv = GET_BITFIELD(m->mcgstatus, 0, 0);
 	bool overflow = GET_BITFIELD(m->status, 62, 62);
 	bool uncorrected_error = GET_BITFIELD(m->status, 61, 61);
-	bool recoverable = GET_BITFIELD(m->status, 56, 56);
+	bool recoverable;
 	u32 core_err_cnt = GET_BITFIELD(m->status, 38, 52);
 	u32 mscod = GET_BITFIELD(m->status, 16, 31);
 	u32 errcode = GET_BITFIELD(m->status, 0, 15);
@@ -1378,6 +1650,11 @@ static void sbridge_mce_output_error(struct mem_ctl_info *mci,
 	int rc, dimm;
 	char *area_type = NULL;
 
+	if (pvt->info.type == IVY_BRIDGE)
+		recoverable = true;
+	else
+		recoverable = GET_BITFIELD(m->status, 56, 56);
+
 	if (uncorrected_error) {
 		if (ripv) {
 			type = "FATAL";
@@ -1636,11 +1913,12 @@ static void sbridge_unregister_mci(struct sbridge_dev *sbridge_dev)
 	sbridge_dev->mci = NULL;
 }
 
-static int sbridge_register_mci(struct sbridge_dev *sbridge_dev)
+static int sbridge_register_mci(struct sbridge_dev *sbridge_dev, enum type type)
 {
 	struct mem_ctl_info *mci;
 	struct edac_mc_layer layers[2];
 	struct sbridge_pvt *pvt;
+	struct pci_dev *pdev = sbridge_dev->pdev[0];
 	int rc;
 
 	/* Check the number of active and not disabled channels */
@@ -1662,7 +1940,7 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev)
 		return -ENOMEM;
 
 	edac_dbg(0, "MC: mci = %p, dev = %p\n",
-		 mci, &sbridge_dev->pdev[0]->dev);
+		 mci, &pdev->dev);
 
 	pvt = mci->pvt_info;
 	memset(pvt, 0, sizeof(*pvt));
@@ -1676,31 +1954,52 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev)
 	mci->edac_cap = EDAC_FLAG_NONE;
 	mci->mod_name = "sbridge_edac.c";
 	mci->mod_ver = SBRIDGE_REVISION;
-	mci->ctl_name = kasprintf(GFP_KERNEL, "Sandy Bridge Socket#%d", mci->mc_idx);
-	mci->dev_name = pci_name(sbridge_dev->pdev[0]);
+	mci->dev_name = pci_name(pdev);
 	mci->ctl_page_to_phys = NULL;
-	pvt->info.get_tolm = sbridge_get_tolm;
-	pvt->info.get_tohm = sbridge_get_tohm;
-	pvt->info.dram_rule = sbridge_dram_rule;
-	pvt->info.max_sad = ARRAY_SIZE(sbridge_dram_rule);
-	pvt->info.interleave_list = sbridge_interleave_list;
-	pvt->info.max_interleave = ARRAY_SIZE(sbridge_interleave_list);
-	pvt->info.interleave_pkg = sbridge_interleave_pkg;
 
 	/* Set the function pointer to an actual operation function */
 	mci->edac_check = sbridge_check_error;
 
-	/* Store pci devices at mci for faster access */
-	rc = sbridge_mci_bind_devs(mci, sbridge_dev);
-	if (unlikely(rc < 0))
-		goto fail0;
+	pvt->info.type = type;
+	if (type == IVY_BRIDGE) {
+		pvt->info.rankcfgr = IB_RANK_CFG_A;
+		pvt->info.get_tolm = ibridge_get_tolm;
+		pvt->info.get_tohm = ibridge_get_tohm;
+		pvt->info.dram_rule = ibridge_dram_rule;
+		pvt->info.max_sad = ARRAY_SIZE(ibridge_dram_rule);
+		pvt->info.interleave_list = ibridge_interleave_list;
+		pvt->info.max_interleave = ARRAY_SIZE(ibridge_interleave_list);
+		pvt->info.interleave_pkg = ibridge_interleave_pkg;
+		mci->ctl_name = kasprintf(GFP_KERNEL, "Ivy Bridge Socket#%d", mci->mc_idx);
+
+		/* Store pci devices at mci for faster access */
+		rc = ibridge_mci_bind_devs(mci, sbridge_dev);
+		if (unlikely(rc < 0))
+			goto fail0;
+	} else {
+		pvt->info.rankcfgr = SB_RANK_CFG_A;
+		pvt->info.get_tolm = sbridge_get_tolm;
+		pvt->info.get_tohm = sbridge_get_tohm;
+		pvt->info.dram_rule = sbridge_dram_rule;
+		pvt->info.max_sad = ARRAY_SIZE(sbridge_dram_rule);
+		pvt->info.interleave_list = sbridge_interleave_list;
+		pvt->info.max_interleave = ARRAY_SIZE(sbridge_interleave_list);
+		pvt->info.interleave_pkg = sbridge_interleave_pkg;
+		mci->ctl_name = kasprintf(GFP_KERNEL, "Sandy Bridge Socket#%d", mci->mc_idx);
+
+		/* Store pci devices at mci for faster access */
+		rc = sbridge_mci_bind_devs(mci, sbridge_dev);
+		if (unlikely(rc < 0))
+			goto fail0;
+	}
+
 
 	/* Get dimm basic config and the memory layout */
 	get_dimm_config(mci);
 	get_memory_layout(mci);
 
 	/* record ptr to the generic device */
-	mci->pdev = &sbridge_dev->pdev[0]->dev;
+	mci->pdev = &pdev->dev;
 
 	/* add this new MC control structure to EDAC's list of MCs */
 	if (unlikely(edac_mc_add_mc(mci))) {
@@ -1731,6 +2030,7 @@ static int sbridge_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	int rc;
 	u8 mc, num_mc = 0;
 	struct sbridge_dev *sbridge_dev;
+	enum type type;
 
 	/* get the pci devices we want to reserve for our use */
 	mutex_lock(&sbridge_edac_lock);
@@ -1744,7 +2044,13 @@ static int sbridge_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	}
 	probed++;
 
-	rc = sbridge_get_all_devices(&num_mc, pci_dev_descr_sbridge_table);
+	if (pdev->device == PCI_DEVICE_ID_INTEL_IBRIDGE_IMC_HA0_TA) {
+		rc = sbridge_get_all_devices(&num_mc, pci_dev_descr_ibridge_table);
+		type = IVY_BRIDGE;
+	} else {
+		rc = sbridge_get_all_devices(&num_mc, pci_dev_descr_sbridge_table);
+		type = SANDY_BRIDGE;
+	}
 	if (unlikely(rc < 0))
 		goto fail0;
 	mc = 0;
@@ -1753,7 +2059,7 @@ static int sbridge_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		edac_dbg(0, "Registering MC#%d (%d of %d)\n",
 			 mc, mc + 1, num_mc);
 		sbridge_dev->mc = mc++;
-		rc = sbridge_register_mci(sbridge_dev);
+		rc = sbridge_register_mci(sbridge_dev, type);
 		if (unlikely(rc < 0))
 			goto fail1;
 	}
@@ -1868,5 +2174,5 @@ MODULE_PARM_DESC(edac_op_state, "EDAC Error Reporting state: 0=Poll,1=NMI");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@redhat.com>");
 MODULE_AUTHOR("Red Hat Inc. (http://www.redhat.com)");
-MODULE_DESCRIPTION("MC Driver for Intel Sandy Bridge memory controllers - "
+MODULE_DESCRIPTION("MC Driver for Intel Sandy Bridge and Ivy Bridge memory controllers - "
 		   SBRIDGE_REVISION);
-- 
cgit 


From 3e45588825c1c9c7b561102dd878d23af1b46bb9 Mon Sep 17 00:00:00 2001
From: Libo Chen <clbchenlibo.chen@huawei.com>
Date: Mon, 26 Aug 2013 03:53:43 -0300
Subject: cell_edac: fix missing of_node_put

Decrease device_node refcount np after task completion.

Signed-off-by: Libo Chen <libo.chen@huawei.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
---
 drivers/edac/cell_edac.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/edac/cell_edac.c b/drivers/edac/cell_edac.c
index c2eaf334b90b..493dc30bfe13 100644
--- a/drivers/edac/cell_edac.c
+++ b/drivers/edac/cell_edac.c
@@ -162,6 +162,7 @@ static void cell_edac_init_csrows(struct mem_ctl_info *mci)
 			csrow->first_page, nr_pages);
 		break;
 	}
+	of_node_put(np);
 }
 
 static int cell_edac_probe(struct platform_device *pdev)
-- 
cgit 


From 2000f5beabc9c6baf084de5f7879975408e3652c Mon Sep 17 00:00:00 2001
From: Tyler Hicks <tyhicks@canonical.com>
Date: Wed, 13 Nov 2013 10:09:42 -0800
Subject: eCryptfs: file->private_data is always valid

When accessing the lower_file pointer located in private_data of
eCryptfs files, there is no need to check to see if the private_data
pointer has been initialized to a non-NULL value. The file->private_data
and file->private_data->lower_file pointers are always initialized to
non-NULL values in ecryptfs_open().

This change quiets a Smatch warning:

  CHECK   /var/scm/kernel/linux/fs/ecryptfs/file.c
fs/ecryptfs/file.c:321 ecryptfs_unlocked_ioctl() error: potential NULL dereference 'lower_file'.
fs/ecryptfs/file.c:335 ecryptfs_compat_ioctl() error: potential NULL dereference 'lower_file'.

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Geyslan G. Bem <geyslan@gmail.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/ecryptfs/file.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index 2229a74aeeed..b1eaa7a1f82c 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -313,11 +313,9 @@ static int ecryptfs_fasync(int fd, struct file *file, int flag)
 static long
 ecryptfs_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
-	struct file *lower_file = NULL;
+	struct file *lower_file = ecryptfs_file_to_lower(file);
 	long rc = -ENOTTY;
 
-	if (ecryptfs_file_to_private(file))
-		lower_file = ecryptfs_file_to_lower(file);
 	if (lower_file->f_op->unlocked_ioctl)
 		rc = lower_file->f_op->unlocked_ioctl(lower_file, cmd, arg);
 	return rc;
@@ -327,11 +325,9 @@ ecryptfs_unlocked_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 static long
 ecryptfs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
-	struct file *lower_file = NULL;
+	struct file *lower_file = ecryptfs_file_to_lower(file);
 	long rc = -ENOIOCTLCMD;
 
-	if (ecryptfs_file_to_private(file))
-		lower_file = ecryptfs_file_to_lower(file);
 	if (lower_file->f_op && lower_file->f_op->compat_ioctl)
 		rc = lower_file->f_op->compat_ioctl(lower_file, cmd, arg);
 	return rc;
-- 
cgit 


From aea240f4162d50e0f2d8bd5ea3ba11b5f072add8 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Thu, 14 Nov 2013 05:50:10 -0800
Subject: nfsd: export proper maximum file size to the client

I noticed that we export a way to high value for the maxfilesize
attribute when debugging a client issue.  The issue didn't turn
out to be related to it, but I think we should export it, so that
clients can limit what write sizes they accept before hitting
the server.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/nfs4xdr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 9d76ee311ddc..088de1355e93 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -2391,7 +2391,7 @@ out_acl:
 	if (bmval0 & FATTR4_WORD0_MAXFILESIZE) {
 		if ((buflen -= 8) < 0)
 			goto out_resource;
-		WRITE64(~(u64)0);
+		WRITE64(exp->ex_path.mnt->mnt_sb->s_maxbytes);
 	}
 	if (bmval0 & FATTR4_WORD0_MAXLINK) {
 		if ((buflen -= 4) < 0)
-- 
cgit 


From 96f8d9ecf227638c89f98ccdcdd50b569891976c Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Wed, 13 Nov 2013 14:00:39 +0800
Subject: tuntap: limit head length of skb allocated

We currently use hdr_len as a hint of head length which is advertised by
guest. But when guest advertise a very big value, it can lead to an 64K+
allocating of kmalloc() which has a very high possibility of failure when host
memory is fragmented or under heavy stress. The huge hdr_len also reduce the
effect of zerocopy or even disable if a gso skb is linearized in guest.

To solves those issues, this patch introduces an upper limit (PAGE_SIZE) of the
head, which guarantees an order 0 allocation each time.

Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/tun.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/net/tun.c b/drivers/net/tun.c
index 7cb105c103fe..782e38bfc1ee 100644
--- a/drivers/net/tun.c
+++ b/drivers/net/tun.c
@@ -981,6 +981,7 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
 	struct sk_buff *skb;
 	size_t len = total_len, align = NET_SKB_PAD, linear;
 	struct virtio_net_hdr gso = { 0 };
+	int good_linear;
 	int offset = 0;
 	int copylen;
 	bool zerocopy = false;
@@ -1021,12 +1022,16 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
 			return -EINVAL;
 	}
 
+	good_linear = SKB_MAX_HEAD(align);
+
 	if (msg_control) {
 		/* There are 256 bytes to be copied in skb, so there is
 		 * enough room for skb expand head in case it is used.
 		 * The rest of the buffer is mapped from userspace.
 		 */
 		copylen = gso.hdr_len ? gso.hdr_len : GOODCOPY_LEN;
+		if (copylen > good_linear)
+			copylen = good_linear;
 		linear = copylen;
 		if (iov_pages(iv, offset + copylen, count) <= MAX_SKB_FRAGS)
 			zerocopy = true;
@@ -1034,7 +1039,10 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
 
 	if (!zerocopy) {
 		copylen = len;
-		linear = gso.hdr_len;
+		if (gso.hdr_len > good_linear)
+			linear = good_linear;
+		else
+			linear = gso.hdr_len;
 	}
 
 	skb = tun_alloc_skb(tfile, align, copylen, linear, noblock);
-- 
cgit 


From 16a3fa28630331e28208872fa5341ce210b901c7 Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Wed, 13 Nov 2013 14:00:40 +0800
Subject: macvtap: limit head length of skb allocated

We currently use hdr_len as a hint of head length which is advertised by
guest. But when guest advertise a very big value, it can lead to an 64K+
allocating of kmalloc() which has a very high possibility of failure when host
memory is fragmented or under heavy stress. The huge hdr_len also reduce the
effect of zerocopy or even disable if a gso skb is linearized in guest.

To solves those issues, this patch introduces an upper limit (PAGE_SIZE) of the
head, which guarantees an order 0 allocation each time.

Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/macvtap.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 9dccb1edfd2a..dc76670c2f2a 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -628,6 +628,7 @@ static ssize_t macvtap_get_user(struct macvtap_queue *q, struct msghdr *m,
 				const struct iovec *iv, unsigned long total_len,
 				size_t count, int noblock)
 {
+	int good_linear = SKB_MAX_HEAD(NET_IP_ALIGN);
 	struct sk_buff *skb;
 	struct macvlan_dev *vlan;
 	unsigned long len = total_len;
@@ -670,6 +671,8 @@ static ssize_t macvtap_get_user(struct macvtap_queue *q, struct msghdr *m,
 
 	if (m && m->msg_control && sock_flag(&q->sk, SOCK_ZEROCOPY)) {
 		copylen = vnet_hdr.hdr_len ? vnet_hdr.hdr_len : GOODCOPY_LEN;
+		if (copylen > good_linear)
+			copylen = good_linear;
 		linear = copylen;
 		if (iov_pages(iv, vnet_hdr_len + copylen, count)
 		    <= MAX_SKB_FRAGS)
@@ -678,7 +681,10 @@ static ssize_t macvtap_get_user(struct macvtap_queue *q, struct msghdr *m,
 
 	if (!zerocopy) {
 		copylen = len;
-		linear = vnet_hdr.hdr_len;
+		if (vnet_hdr.hdr_len > good_linear)
+			linear = good_linear;
+		else
+			linear = vnet_hdr.hdr_len;
 	}
 
 	skb = macvtap_alloc_skb(&q->sk, NET_IP_ALIGN, copylen,
-- 
cgit 


From 66b251422be7cb39e7619fee647724720f74d1f7 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Tue, 12 Nov 2013 23:45:41 +0100
Subject: random32: add __init prefix to prandom_start_seed_timer

We only call that in functions annotated with __init, so add __init
prefix in prandom_start_seed_timer() as well, so that the kernel can
make use of this hint and we can possibly free up resources after it's
usage. And since it's an internal function rename it to
__prandom_start_seed_timer().

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 lib/random32.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/random32.c b/lib/random32.c
index 82da4f4c3489..4f9d5dffc554 100644
--- a/lib/random32.c
+++ b/lib/random32.c
@@ -222,7 +222,7 @@ static void __prandom_timer(unsigned long dontcare)
 	add_timer(&seed_timer);
 }
 
-static void prandom_start_seed_timer(void)
+static void __init __prandom_start_seed_timer(void)
 {
 	set_timer_slack(&seed_timer, HZ);
 	seed_timer.expires = jiffies + 40 * HZ;
@@ -270,7 +270,7 @@ void prandom_reseed_late(void)
 static int __init prandom_reseed(void)
 {
 	__prandom_reseed(false);
-	prandom_start_seed_timer();
+	__prandom_start_seed_timer();
 	return 0;
 }
 late_initcall(prandom_reseed);
-- 
cgit 


From 0125737accc5aac532719aecd80615364caa9e0f Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Tue, 12 Nov 2013 23:45:42 +0100
Subject: random32: use msecs_to_jiffies for reseed timer

Use msecs_to_jiffies, for these calculations as different HZ
considerations are taken into account for conversion of the timer
shot, and also it makes the code more readable.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 lib/random32.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/lib/random32.c b/lib/random32.c
index 4f9d5dffc554..1e5b2df44291 100644
--- a/lib/random32.c
+++ b/lib/random32.c
@@ -214,18 +214,22 @@ static DEFINE_TIMER(seed_timer, __prandom_timer, 0, 0);
 static void __prandom_timer(unsigned long dontcare)
 {
 	u32 entropy;
+	unsigned long expires;
 
 	get_random_bytes(&entropy, sizeof(entropy));
 	prandom_seed(entropy);
+
 	/* reseed every ~60 seconds, in [40 .. 80) interval with slack */
-	seed_timer.expires = jiffies + (40 * HZ + (prandom_u32() % (40 * HZ)));
+	expires = 40 + (prandom_u32() % 40);
+	seed_timer.expires = jiffies + msecs_to_jiffies(expires * MSEC_PER_SEC);
+
 	add_timer(&seed_timer);
 }
 
 static void __init __prandom_start_seed_timer(void)
 {
 	set_timer_slack(&seed_timer, HZ);
-	seed_timer.expires = jiffies + 40 * HZ;
+	seed_timer.expires = jiffies + msecs_to_jiffies(40 * MSEC_PER_SEC);
 	add_timer(&seed_timer);
 }
 
-- 
cgit 


From 192368372d3d29fe04f6ed2a5255ae2d1b58cf76 Mon Sep 17 00:00:00 2001
From: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Date: Wed, 13 Nov 2013 17:26:12 +0900
Subject: bridge: Use vlan_vid_[add/del] instead of direct
 ndo_vlan_rx_[add/kill]_vid calls

We should use wrapper functions vlan_vid_[add/del] instead of
ndo_vlan_rx_[add/kill]_vid. Otherwise, we might be not able to communicate
using vlan interface in a certain situation.

Example of problematic case:
  vconfig add eth0 10
  brctl addif br0 eth0
  bridge vlan add dev eth0 vid 10
  bridge vlan del dev eth0 vid 10
  brctl delif br0 eth0
In this case, we cannot communicate via eth0.10 because vlan 10 is
filtered by NIC that has the vlan filtering feature.

Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/bridge/br_vlan.c | 20 ++++++--------------
 1 file changed, 6 insertions(+), 14 deletions(-)

diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 53f0990eab58..57074be62fcb 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -34,7 +34,6 @@ static void __vlan_add_flags(struct net_port_vlans *v, u16 vid, u16 flags)
 
 static int __vlan_add(struct net_port_vlans *v, u16 vid, u16 flags)
 {
-	const struct net_device_ops *ops;
 	struct net_bridge_port *p = NULL;
 	struct net_bridge *br;
 	struct net_device *dev;
@@ -53,17 +52,15 @@ static int __vlan_add(struct net_port_vlans *v, u16 vid, u16 flags)
 		br = v->parent.br;
 		dev = br->dev;
 	}
-	ops = dev->netdev_ops;
 
-	if (p && (dev->features & NETIF_F_HW_VLAN_CTAG_FILTER)) {
+	if (p) {
 		/* Add VLAN to the device filter if it is supported.
 		 * Stricly speaking, this is not necessary now, since
 		 * devices are made promiscuous by the bridge, but if
 		 * that ever changes this code will allow tagged
 		 * traffic to enter the bridge.
 		 */
-		err = ops->ndo_vlan_rx_add_vid(dev, htons(ETH_P_8021Q),
-					       vid);
+		err = vlan_vid_add(dev, htons(ETH_P_8021Q), vid);
 		if (err)
 			return err;
 	}
@@ -82,8 +79,8 @@ static int __vlan_add(struct net_port_vlans *v, u16 vid, u16 flags)
 	return 0;
 
 out_filt:
-	if (p && (dev->features & NETIF_F_HW_VLAN_CTAG_FILTER))
-		ops->ndo_vlan_rx_kill_vid(dev, htons(ETH_P_8021Q), vid);
+	if (p)
+		vlan_vid_del(dev, htons(ETH_P_8021Q), vid);
 	return err;
 }
 
@@ -95,13 +92,8 @@ static int __vlan_del(struct net_port_vlans *v, u16 vid)
 	__vlan_delete_pvid(v, vid);
 	clear_bit(vid, v->untagged_bitmap);
 
-	if (v->port_idx) {
-		struct net_device *dev = v->parent.port->dev;
-		const struct net_device_ops *ops = dev->netdev_ops;
-
-		if (dev->features & NETIF_F_HW_VLAN_CTAG_FILTER)
-			ops->ndo_vlan_rx_kill_vid(dev, htons(ETH_P_8021Q), vid);
-	}
+	if (v->port_idx)
+		vlan_vid_del(v->parent.port->dev, htons(ETH_P_8021Q), vid);
 
 	clear_bit(vid, v->vlan_bitmap);
 	v->num_vlans--;
-- 
cgit 


From dbbaf949bcd0ffb8b17cf0438060d55d6cfb8a4b Mon Sep 17 00:00:00 2001
From: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Date: Wed, 13 Nov 2013 17:26:13 +0900
Subject: bridge: Call vlan_vid_del for all vids at nbp_vlan_flush

We should call vlan_vid_del for all vids at nbp_vlan_flush to prevent
vid_info->refcount from being leaked when detaching a bridge port.

Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/bridge/br_vlan.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c
index 57074be62fcb..af5ebd18d705 100644
--- a/net/bridge/br_vlan.c
+++ b/net/bridge/br_vlan.c
@@ -390,6 +390,7 @@ int nbp_vlan_delete(struct net_bridge_port *port, u16 vid)
 void nbp_vlan_flush(struct net_bridge_port *port)
 {
 	struct net_port_vlans *pv;
+	u16 vid;
 
 	ASSERT_RTNL();
 
@@ -397,6 +398,9 @@ void nbp_vlan_flush(struct net_bridge_port *port)
 	if (!pv)
 		return;
 
+	for_each_set_bit(vid, pv->vlan_bitmap, VLAN_N_VID)
+		vlan_vid_del(port->dev, htons(ETH_P_8021Q), vid);
+
 	__vlan_flush(pv);
 }
 
-- 
cgit 


From b4e09b29c73e3bf09be1652bbf19585a2363a10a Mon Sep 17 00:00:00 2001
From: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Date: Wed, 13 Nov 2013 17:26:14 +0900
Subject: bridge: Fix memory leak when deleting bridge with vlan filtering
 enabled

We currently don't call br_vlan_flush() when deleting a bridge, which
leads to memory leak if br->vlan_info is allocated.

Steps to reproduce:
  while :
  do
    brctl addbr br0
    bridge vlan add dev br0 vid 10 self
    brctl delbr br0
  done
We can observe the cache size of corresponding slab entry
(as kmalloc-2048 in SLUB) is increased.

kmemleak output:
unreferenced object 0xffff8800b68a7000 (size 2048):
  comm "bridge", pid 2086, jiffies 4295774704 (age 47.656s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 48 9b 36 00 88 ff ff  .........H.6....
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff815eb6ae>] kmemleak_alloc+0x4e/0xb0
    [<ffffffff8116a1ca>] kmem_cache_alloc_trace+0xca/0x220
    [<ffffffffa03eddd6>] br_vlan_add+0x66/0xe0 [bridge]
    [<ffffffffa03e543c>] br_setlink+0x2dc/0x340 [bridge]
    [<ffffffff8150e481>] rtnl_bridge_setlink+0x101/0x200
    [<ffffffff8150d9d9>] rtnetlink_rcv_msg+0x99/0x260
    [<ffffffff81528679>] netlink_rcv_skb+0xa9/0xc0
    [<ffffffff8150d938>] rtnetlink_rcv+0x28/0x30
    [<ffffffff81527ccd>] netlink_unicast+0xdd/0x190
    [<ffffffff8152807f>] netlink_sendmsg+0x2ff/0x740
    [<ffffffff814e8368>] sock_sendmsg+0x88/0xc0
    [<ffffffff814e8ac8>] ___sys_sendmsg.part.14+0x298/0x2b0
    [<ffffffff814e91de>] __sys_sendmsg+0x4e/0x90
    [<ffffffff814e922e>] SyS_sendmsg+0xe/0x10
    [<ffffffff81601669>] system_call_fastpath+0x16/0x1b
    [<ffffffffffffffff>] 0xffffffffffffffff

Signed-off-by: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/bridge/br_if.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index c41d5fbb91d0..6e6194fcd88e 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -172,6 +172,7 @@ void br_dev_delete(struct net_device *dev, struct list_head *head)
 		del_nbp(p);
 	}
 
+	br_vlan_flush(br);
 	del_timer_sync(&br->gc_timer);
 
 	br_sysfs_delbr(br->dev);
-- 
cgit 


From 58b187c68d91b54b82f6fd267ee3346ed8770655 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Thu, 14 Nov 2013 00:40:56 +0000
Subject: tg3: Validate hwtstamp_config completely before applying it

tg3_hwtstamp_ioctl() should validate all fields of hwtstamp_config
before making any changes.  Currently it sets the TX configuration
before validating the rx_filter field.

Compile-tested only.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/tg3.c | 16 +++++++---------
 1 file changed, 7 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 00c5be8c55b8..a9e068423ba0 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -13618,16 +13618,9 @@ static int tg3_hwtstamp_ioctl(struct net_device *dev,
 	if (stmpconf.flags)
 		return -EINVAL;
 
-	switch (stmpconf.tx_type) {
-	case HWTSTAMP_TX_ON:
-		tg3_flag_set(tp, TX_TSTAMP_EN);
-		break;
-	case HWTSTAMP_TX_OFF:
-		tg3_flag_clear(tp, TX_TSTAMP_EN);
-		break;
-	default:
+	if (stmpconf.tx_type != HWTSTAMP_TX_ON &&
+	    stmpconf.tx_type != HWTSTAMP_TX_OFF)
 		return -ERANGE;
-	}
 
 	switch (stmpconf.rx_filter) {
 	case HWTSTAMP_FILTER_NONE:
@@ -13689,6 +13682,11 @@ static int tg3_hwtstamp_ioctl(struct net_device *dev,
 		tw32(TG3_RX_PTP_CTL,
 		     tp->rxptpctl | TG3_RX_PTP_CTL_HWTS_INTERLOCK);
 
+	if (stmpconf.tx_type == HWTSTAMP_TX_ON)
+		tg3_flag_set(tp, TX_TSTAMP_EN);
+	else
+		tg3_flag_clear(tp, TX_TSTAMP_EN);
+
 	return copy_to_user(ifr->ifr_data, &stmpconf, sizeof(stmpconf)) ?
 		-EFAULT : 0;
 }
-- 
cgit 


From 62d7e3a2d00675970bc7afccc2e407e1df8f1d0f Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Thu, 14 Nov 2013 00:41:38 +0000
Subject: e1000e: Validate hwtstamp_config completely before applying it

e1000e_hwtstamp_ioctl() should validate all fields of hwtstamp_config
before making any changes.  Currently it copies the configuration to
the e1000_adapter structure before validating it at all.

Change e1000e_config_hwtstamp() to take a pointer to the
hwstamp_config and to copy the config after validating it.

Compile-tested only.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/intel/e1000e/netdev.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index 4ef786775acb..f02816575369 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -3482,10 +3482,10 @@ s32 e1000e_get_base_timinca(struct e1000_adapter *adapter, u32 *timinca)
  * specified. Matching the kind of event packet is not supported, with the
  * exception of "all V2 events regardless of level 2 or 4".
  **/
-static int e1000e_config_hwtstamp(struct e1000_adapter *adapter)
+static int e1000e_config_hwtstamp(struct e1000_adapter *adapter,
+				  struct hwtstamp_config *config)
 {
 	struct e1000_hw *hw = &adapter->hw;
-	struct hwtstamp_config *config = &adapter->hwtstamp_config;
 	u32 tsync_tx_ctl = E1000_TSYNCTXCTL_ENABLED;
 	u32 tsync_rx_ctl = E1000_TSYNCRXCTL_ENABLED;
 	u32 rxmtrl = 0;
@@ -3586,6 +3586,8 @@ static int e1000e_config_hwtstamp(struct e1000_adapter *adapter)
 		return -ERANGE;
 	}
 
+	adapter->hwtstamp_config = *config;
+
 	/* enable/disable Tx h/w time stamping */
 	regval = er32(TSYNCTXCTL);
 	regval &= ~E1000_TSYNCTXCTL_ENABLED;
@@ -3874,7 +3876,7 @@ void e1000e_reset(struct e1000_adapter *adapter)
 	e1000e_reset_adaptive(hw);
 
 	/* initialize systim and reset the ns time counter */
-	e1000e_config_hwtstamp(adapter);
+	e1000e_config_hwtstamp(adapter, &adapter->hwtstamp_config);
 
 	/* Set EEE advertisement as appropriate */
 	if (adapter->flags2 & FLAG2_HAS_EEE) {
@@ -5797,14 +5799,10 @@ static int e1000e_hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr)
 	if (copy_from_user(&config, ifr->ifr_data, sizeof(config)))
 		return -EFAULT;
 
-	adapter->hwtstamp_config = config;
-
-	ret_val = e1000e_config_hwtstamp(adapter);
+	ret_val = e1000e_config_hwtstamp(adapter, &config);
 	if (ret_val)
 		return ret_val;
 
-	config = adapter->hwtstamp_config;
-
 	switch (config.rx_filter) {
 	case HWTSTAMP_FILTER_PTP_V2_L4_SYNC:
 	case HWTSTAMP_FILTER_PTP_V2_L2_SYNC:
-- 
cgit 


From 810abe9bb3619c717115ae88a09a92cb35a83171 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Thu, 14 Nov 2013 00:42:50 +0000
Subject: pch_gbe: Validate hwtstamp_config completely before applying it

hwtstamp_ioctl() should validate all fields of hwtstamp_config
before making any changes.  Currently it sets the TX configuration
before validating the rx_filter field.

Compile-tested only.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index 5a0f04c2c813..27ffe0ebf0a6 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
@@ -245,16 +245,8 @@ static int hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
 	/* Get ieee1588's dev information */
 	pdev = adapter->ptp_pdev;
 
-	switch (cfg.tx_type) {
-	case HWTSTAMP_TX_OFF:
-		adapter->hwts_tx_en = 0;
-		break;
-	case HWTSTAMP_TX_ON:
-		adapter->hwts_tx_en = 1;
-		break;
-	default:
+	if (cfg.tx_type != HWTSTAMP_TX_OFF && cfg.tx_type != HWTSTAMP_TX_ON)
 		return -ERANGE;
-	}
 
 	switch (cfg.rx_filter) {
 	case HWTSTAMP_FILTER_NONE:
@@ -284,6 +276,8 @@ static int hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
 		return -ERANGE;
 	}
 
+	adapter->hwts_tx_en = cfg.tx_type == HWTSTAMP_TX_ON;
+
 	/* Clear out any old time stamps. */
 	pch_ch_event_write(pdev, TX_SNAPSHOT_LOCKED | RX_SNAPSHOT_LOCKED);
 
-- 
cgit 


From 5f3da3281932a795b80cddd1887291515a7e324d Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Thu, 14 Nov 2013 00:43:41 +0000
Subject: stmmac: Validate hwtstamp_config completely before applying it

stmmac_hwtstamp_ioctl() should validate all fields of hwtstamp_config
before making any changes.  Currently it sets the TX configuration
before validating the rx_filter field.

Compile-tested only.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 8d4ccd35a016..8a7a23a84ac5 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -435,16 +435,9 @@ static int stmmac_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr)
 	if (config.flags)
 		return -EINVAL;
 
-	switch (config.tx_type) {
-	case HWTSTAMP_TX_OFF:
-		priv->hwts_tx_en = 0;
-		break;
-	case HWTSTAMP_TX_ON:
-		priv->hwts_tx_en = 1;
-		break;
-	default:
+	if (config.tx_type != HWTSTAMP_TX_OFF &&
+	    config.tx_type != HWTSTAMP_TX_ON)
 		return -ERANGE;
-	}
 
 	if (priv->adv_ts) {
 		switch (config.rx_filter) {
@@ -576,6 +569,7 @@ static int stmmac_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr)
 		}
 	}
 	priv->hwts_rx_en = ((config.rx_filter == HWTSTAMP_FILTER_NONE) ? 0 : 1);
+	priv->hwts_tx_en = config.tx_type == HWTSTAMP_TX_ON;
 
 	if (!priv->hwts_tx_en && !priv->hwts_rx_en)
 		priv->hw->ptp->config_hw_tstamping(priv->ioaddr, 0);
-- 
cgit 


From 2ee91e54bd5367bf4123719a4f7203857b28e046 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Thu, 14 Nov 2013 00:47:36 +0000
Subject: ti_cpsw: Validate hwtstamp_config completely before applying it

cpsw_hwtstamp_ioctl() should validate all fields of hwtstamp_config,
and the hardware version, before making any changes.  Currently it
sets the TX configuration before validating the rx_filter field
or that the hardware supports timestamping.

Also correct the error code for hardware versions that don't
support timestamping.  ENOTSUPP is used by the NFS implementation
and is not part of userland API; we want EOPNOTSUPP (which glibc
also calls ENOTSUP, with one 'P').

Untested as I don't have a cross-compiler to hand.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Acked-by: Mugunthan V N <mugunthanvnm@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/ti/cpsw.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 90d41d26ec6d..30b0c032e5fc 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -1323,6 +1323,10 @@ static int cpsw_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr)
 	struct cpts *cpts = priv->cpts;
 	struct hwtstamp_config cfg;
 
+	if (priv->version != CPSW_VERSION_1 &&
+	    priv->version != CPSW_VERSION_2)
+		return -EOPNOTSUPP;
+
 	if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg)))
 		return -EFAULT;
 
@@ -1330,16 +1334,8 @@ static int cpsw_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr)
 	if (cfg.flags)
 		return -EINVAL;
 
-	switch (cfg.tx_type) {
-	case HWTSTAMP_TX_OFF:
-		cpts->tx_enable = 0;
-		break;
-	case HWTSTAMP_TX_ON:
-		cpts->tx_enable = 1;
-		break;
-	default:
+	if (cfg.tx_type != HWTSTAMP_TX_OFF && cfg.tx_type != HWTSTAMP_TX_ON)
 		return -ERANGE;
-	}
 
 	switch (cfg.rx_filter) {
 	case HWTSTAMP_FILTER_NONE:
@@ -1366,6 +1362,8 @@ static int cpsw_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr)
 		return -ERANGE;
 	}
 
+	cpts->tx_enable = cfg.tx_type == HWTSTAMP_TX_ON;
+
 	switch (priv->version) {
 	case CPSW_VERSION_1:
 		cpsw_hwtstamp_v1(priv);
@@ -1374,7 +1372,7 @@ static int cpsw_hwtstamp_ioctl(struct net_device *dev, struct ifreq *ifr)
 		cpsw_hwtstamp_v2(priv);
 		break;
 	default:
-		return -ENOTSUPP;
+		WARN_ON(1);
 	}
 
 	return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0;
-- 
cgit 


From a5be8cd3875ca051db857c9d76b253a7e7ea3f22 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <bhutchings@solarflare.com>
Date: Thu, 14 Nov 2013 00:48:56 +0000
Subject: ixp4xx_eth: Validate hwtstamp_config completely before applying it

hwtstamp_ioctl() should validate all fields of hwtstamp_config
before making any changes.  Currently it sets the TX configuration
before validating the rx_filter field.

Untested as I don't have a cross-compiler to hand.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/xscale/ixp4xx_eth.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/xscale/ixp4xx_eth.c b/drivers/net/ethernet/xscale/ixp4xx_eth.c
index e78802e75ea6..bcc224a83734 100644
--- a/drivers/net/ethernet/xscale/ixp4xx_eth.c
+++ b/drivers/net/ethernet/xscale/ixp4xx_eth.c
@@ -389,16 +389,8 @@ static int hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
 	ch = PORT2CHANNEL(port);
 	regs = (struct ixp46x_ts_regs __iomem *) IXP4XX_TIMESYNC_BASE_VIRT;
 
-	switch (cfg.tx_type) {
-	case HWTSTAMP_TX_OFF:
-		port->hwts_tx_en = 0;
-		break;
-	case HWTSTAMP_TX_ON:
-		port->hwts_tx_en = 1;
-		break;
-	default:
+	if (cfg.tx_type != HWTSTAMP_TX_OFF && cfg.tx_type != HWTSTAMP_TX_ON)
 		return -ERANGE;
-	}
 
 	switch (cfg.rx_filter) {
 	case HWTSTAMP_FILTER_NONE:
@@ -416,6 +408,8 @@ static int hwtstamp_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
 		return -ERANGE;
 	}
 
+	port->hwts_tx_en = cfg.tx_type == HWTSTAMP_TX_ON;
+
 	/* Clear out any old time stamps. */
 	__raw_writel(TX_SNAPSHOT_LOCKED | RX_SNAPSHOT_LOCKED,
 		     &regs->channel[ch].ch_event);
-- 
cgit 


From 98e09386c0ef4dfd48af7ba60ff908f0d525cdee Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 13 Nov 2013 06:32:54 -0800
Subject: tcp: tsq: restore minimal amount of queueing

After commit c9eeec26e32e ("tcp: TSQ can use a dynamic limit"), several
users reported throughput regressions, notably on mvneta and wifi
adapters.

802.11 AMPDU requires a fair amount of queueing to be effective.

This patch partially reverts the change done in tcp_write_xmit()
so that the minimal amount is sysctl_tcp_limit_output_bytes.

It also remove the use of this sysctl while building skb stored
in write queue, as TSO autosizing does the right thing anyway.

Users with well behaving NICS and correct qdisc (like sch_fq),
can then lower the default sysctl_tcp_limit_output_bytes value from
128KB to 8KB.

This new usage of sysctl_tcp_limit_output_bytes permits each driver
authors to check how their driver performs when/if the value is set
to a minimum of 4KB.

Normally, line rate for a single TCP flow should be possible,
but some drivers rely on timers to perform TX completion and
too long TX completion delays prevent reaching full throughput.

Fixes: c9eeec26e32e ("tcp: TSQ can use a dynamic limit")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Sujith Manoharan <sujith@msujith.org>
Reported-by: Arnaud Ebalard <arno@natisbad.org>
Tested-by: Sujith Manoharan <sujith@msujith.org>
Cc: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 Documentation/networking/ip-sysctl.txt | 3 ---
 net/ipv4/tcp.c                         | 6 ------
 net/ipv4/tcp_output.c                  | 6 +++++-
 3 files changed, 5 insertions(+), 10 deletions(-)

diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 8b8a05787641..3c12d9a7ed00 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -577,9 +577,6 @@ tcp_limit_output_bytes - INTEGER
 	typical pfifo_fast qdiscs.
 	tcp_limit_output_bytes limits the number of bytes on qdisc
 	or device to reduce artificial RTT/cwnd and reduce bufferbloat.
-	Note: For GSO/TSO enabled flows, we try to have at least two
-	packets in flight. Reducing tcp_limit_output_bytes might also
-	reduce the size of individual GSO packet (64KB being the max)
 	Default: 131072
 
 tcp_challenge_ack_limit - INTEGER
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 8e8529d3c8c9..3dc0c6cf02a8 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -808,12 +808,6 @@ static unsigned int tcp_xmit_size_goal(struct sock *sk, u32 mss_now,
 		xmit_size_goal = min_t(u32, gso_size,
 				       sk->sk_gso_max_size - 1 - hlen);
 
-		/* TSQ : try to have at least two segments in flight
-		 * (one in NIC TX ring, another in Qdisc)
-		 */
-		xmit_size_goal = min_t(u32, xmit_size_goal,
-				       sysctl_tcp_limit_output_bytes >> 1);
-
 		xmit_size_goal = tcp_bound_to_half_wnd(tp, xmit_size_goal);
 
 		/* We try hard to avoid divides here */
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index 672854664ff5..c5231d9b06d7 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -1875,8 +1875,12 @@ static bool tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle,
 		 *  - better RTT estimation and ACK scheduling
 		 *  - faster recovery
 		 *  - high rates
+		 * Alas, some drivers / subsystems require a fair amount
+		 * of queued bytes to ensure line rate.
+		 * One example is wifi aggregation (802.11 AMPDU)
 		 */
-		limit = max(skb->truesize, sk->sk_pacing_rate >> 10);
+		limit = max_t(unsigned int, sysctl_tcp_limit_output_bytes,
+			      sk->sk_pacing_rate >> 10);
 
 		if (atomic_read(&sk->sk_wmem_alloc) > limit) {
 			set_bit(TSQ_THROTTLED, &tp->tsq_flags);
-- 
cgit 


From b869ccfab1e324507fa3596e3e1308444fb68227 Mon Sep 17 00:00:00 2001
From: Nikolay Aleksandrov <nikolay@redhat.com>
Date: Wed, 13 Nov 2013 17:07:46 +0100
Subject: bonding: fix two race conditions in bond_store_updelay/downdelay

This patch fixes two race conditions between bond_store_updelay/downdelay
and bond_store_miimon which could lead to division by zero as miimon can
be set to 0 while either updelay/downdelay are being set and thus miss the
zero check in the beginning, the zero div happens because updelay/downdelay
are stored as new_value / bond->params.miimon. Use rtnl to synchronize with
miimon setting.

CC: Jay Vosburgh <fubar@us.ibm.com>
CC: Andy Gospodarek <andy@greyhouse.net>
CC: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: Nikolay Aleksandrov <nikolay@redhat.com>
Acked-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_sysfs.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 6245d92b7a0c..9f32e2304004 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -702,6 +702,8 @@ static ssize_t bonding_store_downdelay(struct device *d,
 	int new_value, ret = count;
 	struct bonding *bond = to_bond(d);
 
+	if (!rtnl_trylock())
+		return restart_syscall();
 	if (!(bond->params.miimon)) {
 		pr_err("%s: Unable to set down delay as MII monitoring is disabled\n",
 		       bond->dev->name);
@@ -735,6 +737,7 @@ static ssize_t bonding_store_downdelay(struct device *d,
 	}
 
 out:
+	rtnl_unlock();
 	return ret;
 }
 static DEVICE_ATTR(downdelay, S_IRUGO | S_IWUSR,
@@ -757,6 +760,8 @@ static ssize_t bonding_store_updelay(struct device *d,
 	int new_value, ret = count;
 	struct bonding *bond = to_bond(d);
 
+	if (!rtnl_trylock())
+		return restart_syscall();
 	if (!(bond->params.miimon)) {
 		pr_err("%s: Unable to set up delay as MII monitoring is disabled\n",
 		       bond->dev->name);
@@ -790,6 +795,7 @@ static ssize_t bonding_store_updelay(struct device *d,
 	}
 
 out:
+	rtnl_unlock();
 	return ret;
 }
 static DEVICE_ATTR(updelay, S_IRUGO | S_IWUSR,
-- 
cgit 


From dccf76ca6b626c0c4a4e09bb221adee3270ab0ef Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Wed, 13 Nov 2013 15:00:46 -0800
Subject: net-tcp: fix panic in tcp_fastopen_cache_set()

We had some reports of crashes using TCP fastopen, and Dave Jones
gave a nice stack trace pointing to the error.

Issue is that tcp_get_metrics() should not be called with a NULL dst

Fixes: 1fe4c481ba637 ("net-tcp: Fast Open client - cookie cache")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dave Jones <davej@redhat.com>
Cc: Yuchung Cheng <ycheng@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Tested-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/tcp_metrics.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c
index 2ab09cbae74d..d3ee2e0c28b6 100644
--- a/net/ipv4/tcp_metrics.c
+++ b/net/ipv4/tcp_metrics.c
@@ -663,10 +663,13 @@ void tcp_fastopen_cache_get(struct sock *sk, u16 *mss,
 void tcp_fastopen_cache_set(struct sock *sk, u16 mss,
 			    struct tcp_fastopen_cookie *cookie, bool syn_lost)
 {
+	struct dst_entry *dst = __sk_dst_get(sk);
 	struct tcp_metrics_block *tm;
 
+	if (!dst)
+		return;
 	rcu_read_lock();
-	tm = tcp_get_metrics(sk, __sk_dst_get(sk), true);
+	tm = tcp_get_metrics(sk, dst, true);
 	if (tm) {
 		struct tcp_fastopen_metrics *tfom = &tm->tcpm_fastopen;
 
-- 
cgit 


From d30a58ba2ef5092f10985d357d22acab232b6dcc Mon Sep 17 00:00:00 2001
From: Chang Xiangzhong <changxiangzhong@gmail.com>
Date: Thu, 14 Nov 2013 00:58:26 +0100
Subject: net: sctp: bug-fixing: retran_path not set properly after transports
 recovering (v3)

When a transport recovers due to the new coming sack, SCTP should
iterate all of its transport_list to locate the __two__ most recently used
transport and set to active_path and retran_path respectively. The exising
code does not find the two properly - In case of the following list:

[most-recent] -> [2nd-most-recent] -> ...

Both active_path and retran_path would be set to the 1st element.

The bug happens when:
1) multi-homing
2) failure/partial_failure transport recovers
Both active_path and retran_path would be set to the same most-recent one, in
other words, retran_path would not take its role - an end user might not even
notice this issue.

Signed-off-by: Chang Xiangzhong <changxiangzhong@gmail.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sctp/associola.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/net/sctp/associola.c b/net/sctp/associola.c
index c9b91cb1cb0d..68a27f9796d2 100644
--- a/net/sctp/associola.c
+++ b/net/sctp/associola.c
@@ -907,8 +907,8 @@ void sctp_assoc_control_transport(struct sctp_association *asoc,
 		if (!first || t->last_time_heard > first->last_time_heard) {
 			second = first;
 			first = t;
-		}
-		if (!second || t->last_time_heard > second->last_time_heard)
+		} else if (!second ||
+			   t->last_time_heard > second->last_time_heard)
 			second = t;
 	}
 
@@ -929,6 +929,8 @@ void sctp_assoc_control_transport(struct sctp_association *asoc,
 		first = asoc->peer.primary_path;
 	}
 
+	if (!second)
+		second = first;
 	/* If we failed to find a usable transport, just camp on the
 	 * primary, even if it is inactive.
 	 */
-- 
cgit 


From d842a31f121eccaba639ff26a1757649abd7d58e Mon Sep 17 00:00:00 2001
From: Duan Fugang-B38611 <B38611@freescale.com>
Date: Thu, 14 Nov 2013 09:57:10 +0800
Subject: net:fec: fix WARNING caused by lack of calls to dma_mapping_error()

The driver fails to check the results of DMA mapping and results in
the following warning: (with kernel config "CONFIG_DMA_API_DEBUG" enable)

------------[ cut here ]------------
WARNING: at lib/dma-debug.c:937 check_unmap+0x43c/0x7d8()
fec 2188000.ethernet: DMA-API: device driver failed to check map
error[device address=0x00000000383a8040] [size=2048 bytes] [mapped as single]

Modules linked in:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 3.10.17-16827-g9cdb0ba-dirty #188
[<80013c4c>] (unwind_backtrace+0x0/0xf8) from [<80011704>] (show_stack+0x10/0x14)
[<80011704>] (show_stack+0x10/0x14) from [<80025614>] (warn_slowpath_common+0x4c/0x6c)
[<80025614>] (warn_slowpath_common+0x4c/0x6c) from [<800256c8>] (warn_slowpath_fmt+0x30/0x40)
[<800256c8>] (warn_slowpath_fmt+0x30/0x40) from [<8026bfdc>] (check_unmap+0x43c/0x7d8)
[<8026bfdc>] (check_unmap+0x43c/0x7d8) from [<8026c584>] (debug_dma_unmap_page+0x6c/0x78)
[<8026c584>] (debug_dma_unmap_page+0x6c/0x78) from [<8038049c>] (fec_enet_rx_napi+0x254/0x8a8)
[<8038049c>] (fec_enet_rx_napi+0x254/0x8a8) from [<804dc8c0>] (net_rx_action+0x94/0x160)
[<804dc8c0>] (net_rx_action+0x94/0x160) from [<8002c758>] (__do_softirq+0xe8/0x1d0)
[<8002c758>] (__do_softirq+0xe8/0x1d0) from [<8002c8e8>] (do_softirq+0x4c/0x58)
[<8002c8e8>] (do_softirq+0x4c/0x58) from [<8002cb50>] (irq_exit+0x90/0xc8)
[<8002cb50>] (irq_exit+0x90/0xc8) from [<8000ea88>] (handle_IRQ+0x3c/0x94)
[<8000ea88>] (handle_IRQ+0x3c/0x94) from [<8000855c>] (gic_handle_irq+0x28/0x5c)
[<8000855c>] (gic_handle_irq+0x28/0x5c) from [<8000de00>] (__irq_svc+0x40/0x50)
Exception stack(0x815a5f38 to 0x815a5f80)
5f20:                                                       815a5f80 3b9aca00
5f40: 0fe52383 00000002 0dd8950e 00000002 81e7b080 00000000 00000000 815ac4d8
5f60: 806032ec 00000000 00000017 815a5f80 80059028 8041fc4c 60000013 ffffffff
[<8000de00>] (__irq_svc+0x40/0x50) from [<8041fc4c>] (cpuidle_enter_state+0x50/0xf0)
[<8041fc4c>] (cpuidle_enter_state+0x50/0xf0) from [<8041fd94>] (cpuidle_idle_call+0xa8/0x14c)
[<8041fd94>] (cpuidle_idle_call+0xa8/0x14c) from [<8000edac>] (arch_cpu_idle+0x10/0x4c)
[<8000edac>] (arch_cpu_idle+0x10/0x4c) from [<800582f8>] (cpu_startup_entry+0x60/0x130)
[<800582f8>] (cpu_startup_entry+0x60/0x130) from [<80bc7a48>] (start_kernel+0x2d0/0x328)
[<80bc7a48>] (start_kernel+0x2d0/0x328) from [<10008074>] (0x10008074)
---[ end trace c6edec32436e0042 ]---

Because dma-debug add new interfaces to debug dma mapping errors, pls refer
to: http://lwn.net/Articles/516640/

After dma mapping, it must call dma_mapping_error() to check mapping error,
otherwise the map_err_type alway is MAP_ERR_NOT_CHECKED, check_unmap() define
the mapping is not checked and dump the error msg. So,add dma_mapping_error()
checking to fix the WARNING

And RX DMA buffers are used repeatedly and the driver copies it into an skb,
fec_enet_rx() should not map or unmap, use dma_sync_single_for_cpu()/dma_sync_single_for_device()
instead of dma_map_single()/dma_unmap_single().

There have another potential issue:  fec_enet_rx() passes the DMA address to __va().
Physical and DMA addresses are *not* the same thing. They may differ if the device
is behind an IOMMU or bounce buffering was required, or just because there is a fixed
offset between the device and host physical addresses. Also fix it in this patch.

=============================================
V2: add net_ratelimit() to limit map err message.
    use dma_sync_single_for_cpu() instead of dma_map_single().
    fix the issue that pass DMA addresses to __va() to get virture address.
V1: initial send
=============================================

Signed-off-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/freescale/fec_main.c | 31 +++++++++++++++++++++++++------
 1 file changed, 25 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index b2793b91cc55..4cbebf3d80eb 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -386,7 +386,14 @@ fec_enet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 	 */
 	bdp->cbd_bufaddr = dma_map_single(&fep->pdev->dev, bufaddr,
 			FEC_ENET_TX_FRSIZE, DMA_TO_DEVICE);
-
+	if (dma_mapping_error(&fep->pdev->dev, bdp->cbd_bufaddr)) {
+		bdp->cbd_bufaddr = 0;
+		fep->tx_skbuff[index] = NULL;
+		dev_kfree_skb_any(skb);
+		if (net_ratelimit())
+			netdev_err(ndev, "Tx DMA memory map failed\n");
+		return NETDEV_TX_OK;
+	}
 	/* Send it on its way.  Tell FEC it's ready, interrupt when done,
 	 * it's the last BD of the frame, and to put the CRC on the end.
 	 */
@@ -861,6 +868,7 @@ fec_enet_rx(struct net_device *ndev, int budget)
 	struct	bufdesc_ex *ebdp = NULL;
 	bool	vlan_packet_rcvd = false;
 	u16	vlan_tag;
+	int	index = 0;
 
 #ifdef CONFIG_M532x
 	flush_cache_all();
@@ -916,10 +924,15 @@ fec_enet_rx(struct net_device *ndev, int budget)
 		ndev->stats.rx_packets++;
 		pkt_len = bdp->cbd_datlen;
 		ndev->stats.rx_bytes += pkt_len;
-		data = (__u8*)__va(bdp->cbd_bufaddr);
 
-		dma_unmap_single(&fep->pdev->dev, bdp->cbd_bufaddr,
-				FEC_ENET_TX_FRSIZE, DMA_FROM_DEVICE);
+		if (fep->bufdesc_ex)
+			index = (struct bufdesc_ex *)bdp -
+				(struct bufdesc_ex *)fep->rx_bd_base;
+		else
+			index = bdp - fep->rx_bd_base;
+		data = fep->rx_skbuff[index]->data;
+		dma_sync_single_for_cpu(&fep->pdev->dev, bdp->cbd_bufaddr,
+					FEC_ENET_RX_FRSIZE, DMA_FROM_DEVICE);
 
 		if (id_entry->driver_data & FEC_QUIRK_SWAP_FRAME)
 			swap_buffer(data, pkt_len);
@@ -999,8 +1012,8 @@ fec_enet_rx(struct net_device *ndev, int budget)
 			napi_gro_receive(&fep->napi, skb);
 		}
 
-		bdp->cbd_bufaddr = dma_map_single(&fep->pdev->dev, data,
-				FEC_ENET_TX_FRSIZE, DMA_FROM_DEVICE);
+		dma_sync_single_for_device(&fep->pdev->dev, bdp->cbd_bufaddr,
+					FEC_ENET_RX_FRSIZE, DMA_FROM_DEVICE);
 rx_processing_done:
 		/* Clear the status flags for this buffer */
 		status &= ~BD_ENET_RX_STATS;
@@ -1719,6 +1732,12 @@ static int fec_enet_alloc_buffers(struct net_device *ndev)
 
 		bdp->cbd_bufaddr = dma_map_single(&fep->pdev->dev, skb->data,
 				FEC_ENET_RX_FRSIZE, DMA_FROM_DEVICE);
+		if (dma_mapping_error(&fep->pdev->dev, bdp->cbd_bufaddr)) {
+			fec_enet_free_buffers(ndev);
+			if (net_ratelimit())
+				netdev_err(ndev, "Rx DMA memory map failed\n");
+			return -ENOMEM;
+		}
 		bdp->cbd_sc = BD_ENET_RX_EMPTY;
 
 		if (fep->bufdesc_ex) {
-- 
cgit 


From 9434266f2c645d4fcf62a03a8e36ad8075e37943 Mon Sep 17 00:00:00 2001
From: Willem de Bruijn <willemb@google.com>
Date: Wed, 13 Nov 2013 21:27:38 -0500
Subject: sit: fix use after free of fb_tunnel_dev

Bug: The fallback device is created in sit_init_net and assumed to be
freed in sit_exit_net. First, it is dereferenced in that function, in
sit_destroy_tunnels:

        struct net *net = dev_net(sitn->fb_tunnel_dev);

Prior to this, rtnl_unlink_register has removed all devices that match
rtnl_link_ops == sit_link_ops.

Commit 205983c43700 added the line

+       sitn->fb_tunnel_dev->rtnl_link_ops = &sit_link_ops;

which cases the fallback device to match here and be freed before it
is last dereferenced.

Fix: This commit adds an explicit .delllink callback to sit_link_ops
that skips deallocation at rtnl_unlink_register for the fallback
device. This mechanism is comparable to the one in ip_tunnel.

It also modifies sit_destroy_tunnels and its only caller sit_exit_net
to avoid the offending dereference in the first place. That double
lookup is more complicated than required.

Test: The bug is only triggered when CONFIG_NET_NS is enabled. It
causes a GPF only when CONFIG_DEBUG_SLAB is enabled. Verified that
this bug exists at the mentioned commit, at davem-net HEAD and at
3.11.y HEAD. Verified that it went away after applying this patch.

Fixes: 205983c43700 ("sit: allow to use rtnl ops on fb tunnel")

Signed-off-by: Willem de Bruijn <willemb@google.com>
Acked-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/sit.c | 18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 3a9038dd818d..5a57f38a50d5 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -1604,6 +1604,15 @@ static const struct nla_policy ipip6_policy[IFLA_IPTUN_MAX + 1] = {
 #endif
 };
 
+static void ipip6_dellink(struct net_device *dev, struct list_head *head)
+{
+	struct net *net = dev_net(dev);
+	struct sit_net *sitn = net_generic(net, sit_net_id);
+
+	if (dev != sitn->fb_tunnel_dev)
+		unregister_netdevice_queue(dev, head);
+}
+
 static struct rtnl_link_ops sit_link_ops __read_mostly = {
 	.kind		= "sit",
 	.maxtype	= IFLA_IPTUN_MAX,
@@ -1615,6 +1624,7 @@ static struct rtnl_link_ops sit_link_ops __read_mostly = {
 	.changelink	= ipip6_changelink,
 	.get_size	= ipip6_get_size,
 	.fill_info	= ipip6_fill_info,
+	.dellink	= ipip6_dellink,
 };
 
 static struct xfrm_tunnel sit_handler __read_mostly = {
@@ -1629,9 +1639,10 @@ static struct xfrm_tunnel ipip_handler __read_mostly = {
 	.priority	=	2,
 };
 
-static void __net_exit sit_destroy_tunnels(struct sit_net *sitn, struct list_head *head)
+static void __net_exit sit_destroy_tunnels(struct net *net,
+					   struct list_head *head)
 {
-	struct net *net = dev_net(sitn->fb_tunnel_dev);
+	struct sit_net *sitn = net_generic(net, sit_net_id);
 	struct net_device *dev, *aux;
 	int prio;
 
@@ -1706,11 +1717,10 @@ err_alloc_dev:
 
 static void __net_exit sit_exit_net(struct net *net)
 {
-	struct sit_net *sitn = net_generic(net, sit_net_id);
 	LIST_HEAD(list);
 
 	rtnl_lock();
-	sit_destroy_tunnels(sitn, &list);
+	sit_destroy_tunnels(net, &list);
 	unregister_netdevice_many(&list);
 	rtnl_unlock();
 }
-- 
cgit 


From f9a23c84486ed350cce7bb1b2828abd1f6658796 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 14 Nov 2013 11:21:10 +0300
Subject: isdnloop: use strlcpy() instead of strcpy()

These strings come from a copy_from_user() and there is no way to be
sure they are NUL terminated.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/isdn/isdnloop/isdnloop.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/isdn/isdnloop/isdnloop.c b/drivers/isdn/isdnloop/isdnloop.c
index baf2686aa8eb..02125e6a9109 100644
--- a/drivers/isdn/isdnloop/isdnloop.c
+++ b/drivers/isdn/isdnloop/isdnloop.c
@@ -1083,8 +1083,10 @@ isdnloop_start(isdnloop_card *card, isdnloop_sdef *sdefp)
 			spin_unlock_irqrestore(&card->isdnloop_lock, flags);
 			return -ENOMEM;
 		}
-		for (i = 0; i < 3; i++)
-			strcpy(card->s0num[i], sdef.num[i]);
+		for (i = 0; i < 3; i++) {
+			strlcpy(card->s0num[i], sdef.num[i],
+				sizeof(card->s0num[0]));
+		}
 		break;
 	case ISDN_PTYPE_1TR6:
 		if (isdnloop_fake(card, "DRV1.04TC-1TR6-CAPI-CNS-BASIS-29.11.95",
@@ -1097,7 +1099,7 @@ isdnloop_start(isdnloop_card *card, isdnloop_sdef *sdefp)
 			spin_unlock_irqrestore(&card->isdnloop_lock, flags);
 			return -ENOMEM;
 		}
-		strcpy(card->s0num[0], sdef.num[0]);
+		strlcpy(card->s0num[0], sdef.num[0], sizeof(card->s0num[0]));
 		card->s0num[1][0] = '\0';
 		card->s0num[2][0] = '\0';
 		break;
-- 
cgit 


From 929c9cf310565a97ec9bc685abbfeaed5fceb557 Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Thu, 14 Nov 2013 13:51:05 +0100
Subject: sit: fix prefix length of ll and v4mapped addresses

When the local IPv4 endpoint is wilcard (0.0.0.0), the prefix length is
correctly set, ie 64 if the address is a link local one or 96 if the address is
a v4 mapped one.
But when the local endpoint is specified, the prefix length is set to 128 for
both kind of address. This patch fix this wrong prefix length.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/addrconf.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 542d09561ed6..27fedc3e4449 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2528,7 +2528,7 @@ static void sit_add_v4_addrs(struct inet6_dev *idev)
 	struct in6_addr addr;
 	struct net_device *dev;
 	struct net *net = dev_net(idev->dev);
-	int scope;
+	int scope, plen;
 
 	ASSERT_RTNL();
 
@@ -2538,12 +2538,14 @@ static void sit_add_v4_addrs(struct inet6_dev *idev)
 	if (idev->dev->flags&IFF_POINTOPOINT) {
 		addr.s6_addr32[0] = htonl(0xfe800000);
 		scope = IFA_LINK;
+		plen = 64;
 	} else {
 		scope = IPV6_ADDR_COMPATv4;
+		plen = 96;
 	}
 
 	if (addr.s6_addr32[3]) {
-		add_addr(idev, &addr, 128, scope);
+		add_addr(idev, &addr, plen, scope);
 		return;
 	}
 
@@ -2555,7 +2557,6 @@ static void sit_add_v4_addrs(struct inet6_dev *idev)
 			int flag = scope;
 
 			for (ifa = in_dev->ifa_list; ifa; ifa = ifa->ifa_next) {
-				int plen;
 
 				addr.s6_addr32[3] = ifa->ifa_local;
 
@@ -2566,10 +2567,6 @@ static void sit_add_v4_addrs(struct inet6_dev *idev)
 						continue;
 					flag |= IFA_HOST;
 				}
-				if (idev->dev->flags&IFF_POINTOPOINT)
-					plen = 64;
-				else
-					plen = 96;
 
 				add_addr(idev, &addr, plen, flag);
 			}
-- 
cgit 


From f0e2acfa30920fc9b902734baba71e58f2fd844a Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Thu, 14 Nov 2013 13:51:06 +0100
Subject: sit: link local routes are missing

When a link local address was added to a sit interface, the corresponding route
was not configured. This breaks routing protocols that use the link local
address, like OSPFv3.

To ease the code reading, I remove sit_route_add(), which only adds v4 mapped
routes, and add this kind of route directly in sit_add_v4_addrs(). Thus link
local and v4 mapped routes are configured in the same place.

Reported-by: Li Hongjun <hongjun.li@6wind.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/addrconf.c | 24 +++++-------------------
 1 file changed, 5 insertions(+), 19 deletions(-)

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 27fedc3e4449..5969ca19a6c8 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -1982,23 +1982,6 @@ static void addrconf_add_mroute(struct net_device *dev)
 	ip6_route_add(&cfg);
 }
 
-#if IS_ENABLED(CONFIG_IPV6_SIT)
-static void sit_route_add(struct net_device *dev)
-{
-	struct fib6_config cfg = {
-		.fc_table = RT6_TABLE_MAIN,
-		.fc_metric = IP6_RT_PRIO_ADDRCONF,
-		.fc_ifindex = dev->ifindex,
-		.fc_dst_len = 96,
-		.fc_flags = RTF_UP | RTF_NONEXTHOP,
-		.fc_nlinfo.nl_net = dev_net(dev),
-	};
-
-	/* prefix length - 96 bits "::d.d.d.d" */
-	ip6_route_add(&cfg);
-}
-#endif
-
 static struct inet6_dev *addrconf_add_dev(struct net_device *dev)
 {
 	struct inet6_dev *idev;
@@ -2529,6 +2512,7 @@ static void sit_add_v4_addrs(struct inet6_dev *idev)
 	struct net_device *dev;
 	struct net *net = dev_net(idev->dev);
 	int scope, plen;
+	u32 pflags = 0;
 
 	ASSERT_RTNL();
 
@@ -2542,10 +2526,12 @@ static void sit_add_v4_addrs(struct inet6_dev *idev)
 	} else {
 		scope = IPV6_ADDR_COMPATv4;
 		plen = 96;
+		pflags |= RTF_NONEXTHOP;
 	}
 
 	if (addr.s6_addr32[3]) {
 		add_addr(idev, &addr, plen, scope);
+		addrconf_prefix_route(&addr, plen, idev->dev, 0, pflags);
 		return;
 	}
 
@@ -2569,6 +2555,8 @@ static void sit_add_v4_addrs(struct inet6_dev *idev)
 				}
 
 				add_addr(idev, &addr, plen, flag);
+				addrconf_prefix_route(&addr, plen, idev->dev, 0,
+						      pflags);
 			}
 		}
 	}
@@ -2704,8 +2692,6 @@ static void addrconf_sit_config(struct net_device *dev)
 
 	if (dev->flags&IFF_POINTOPOINT)
 		addrconf_add_mroute(dev);
-	else
-		sit_route_add(dev);
 }
 #endif
 
-- 
cgit 


From f7cb8886335dea39fa31bb701700361f1aa7a6ea Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Thu, 14 Nov 2013 13:51:07 +0100
Subject: sit/gre6: don't try to add the same route two times

addrconf_add_linklocal() already adds the link local route, so there is no
reason to add it before calling this function.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/addrconf.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index 5969ca19a6c8..cdc14d0947f3 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2682,7 +2682,6 @@ static void addrconf_sit_config(struct net_device *dev)
 		struct in6_addr addr;
 
 		ipv6_addr_set(&addr,  htonl(0xFE800000), 0, 0, 0);
-		addrconf_prefix_route(&addr, 64, dev, 0, 0);
 		if (!ipv6_generate_eui64(addr.s6_addr + 8, dev))
 			addrconf_add_linklocal(idev, &addr);
 		return;
@@ -2709,8 +2708,6 @@ static void addrconf_gre_config(struct net_device *dev)
 	}
 
 	ipv6_addr_set(&addr,  htonl(0xFE800000), 0, 0, 0);
-	addrconf_prefix_route(&addr, 64, dev, 0, 0);
-
 	if (!ipv6_generate_eui64(addr.s6_addr + 8, dev))
 		addrconf_add_linklocal(idev, &addr);
 }
-- 
cgit 


From 1e9f3d6f1c403dd2b6270f654b4747147aa2306f Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Thu, 14 Nov 2013 15:47:03 +0100
Subject: ip6tnl: fix use after free of fb_tnl_dev

Bug has been introduced by commit bb8140947a24 ("ip6tnl: allow to use rtnl ops
on fb tunnel").

When ip6_tunnel.ko is unloaded, FB device is delete by rtnl_link_unregister()
and then we try to use the pointer in ip6_tnl_destroy_tunnels().

Let's add an handler for dellink, which will never remove the FB tunnel. With
this patch it will no more be possible to remove it via 'ip link del ip6tnl0',
but it's safer.

The same fix was already proposed by Willem de Bruijn <willemb@google.com> for
sit interfaces.

CC: Willem de Bruijn <willemb@google.com>
Reported-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/ip6_tunnel.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/net/ipv6/ip6_tunnel.c b/net/ipv6/ip6_tunnel.c
index 583b77e2f69b..c1e11b5d6ccc 100644
--- a/net/ipv6/ip6_tunnel.c
+++ b/net/ipv6/ip6_tunnel.c
@@ -1635,6 +1635,15 @@ static int ip6_tnl_changelink(struct net_device *dev, struct nlattr *tb[],
 	return ip6_tnl_update(t, &p);
 }
 
+static void ip6_tnl_dellink(struct net_device *dev, struct list_head *head)
+{
+	struct net *net = dev_net(dev);
+	struct ip6_tnl_net *ip6n = net_generic(net, ip6_tnl_net_id);
+
+	if (dev != ip6n->fb_tnl_dev)
+		unregister_netdevice_queue(dev, head);
+}
+
 static size_t ip6_tnl_get_size(const struct net_device *dev)
 {
 	return
@@ -1699,6 +1708,7 @@ static struct rtnl_link_ops ip6_link_ops __read_mostly = {
 	.validate	= ip6_tnl_validate,
 	.newlink	= ip6_tnl_newlink,
 	.changelink	= ip6_tnl_changelink,
+	.dellink	= ip6_tnl_dellink,
 	.get_size	= ip6_tnl_get_size,
 	.fill_info	= ip6_tnl_fill_info,
 };
@@ -1715,9 +1725,9 @@ static struct xfrm6_tunnel ip6ip6_handler __read_mostly = {
 	.priority	=	1,
 };
 
-static void __net_exit ip6_tnl_destroy_tunnels(struct ip6_tnl_net *ip6n)
+static void __net_exit ip6_tnl_destroy_tunnels(struct net *net)
 {
-	struct net *net = dev_net(ip6n->fb_tnl_dev);
+	struct ip6_tnl_net *ip6n = net_generic(net, ip6_tnl_net_id);
 	struct net_device *dev, *aux;
 	int h;
 	struct ip6_tnl *t;
@@ -1785,10 +1795,8 @@ err_alloc_dev:
 
 static void __net_exit ip6_tnl_exit_net(struct net *net)
 {
-	struct ip6_tnl_net *ip6n = net_generic(net, ip6_tnl_net_id);
-
 	rtnl_lock();
-	ip6_tnl_destroy_tunnels(ip6n);
+	ip6_tnl_destroy_tunnels(net);
 	rtnl_unlock();
 }
 
-- 
cgit 


From 88d36a9949513419de3a506e7fca8b82d1dc972a Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 14 Nov 2013 17:14:39 +0100
Subject: taskstats: use genl_register_family_with_ops()

This simplifies the code since there's no longer a
need to have error handling in the registration.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 kernel/taskstats.c | 39 ++++++++++++++-------------------------
 1 file changed, 14 insertions(+), 25 deletions(-)

diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index 9f4618eb51c8..609e77f68687 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -673,17 +673,18 @@ err:
 	nlmsg_free(rep_skb);
 }
 
-static struct genl_ops taskstats_ops = {
-	.cmd		= TASKSTATS_CMD_GET,
-	.doit		= taskstats_user_cmd,
-	.policy		= taskstats_cmd_get_policy,
-	.flags		= GENL_ADMIN_PERM,
-};
-
-static struct genl_ops cgroupstats_ops = {
-	.cmd		= CGROUPSTATS_CMD_GET,
-	.doit		= cgroupstats_user_cmd,
-	.policy		= cgroupstats_cmd_get_policy,
+static struct genl_ops taskstats_ops[] = {
+	{
+		.cmd		= TASKSTATS_CMD_GET,
+		.doit		= taskstats_user_cmd,
+		.policy		= taskstats_cmd_get_policy,
+		.flags		= GENL_ADMIN_PERM,
+	},
+	{
+		.cmd		= CGROUPSTATS_CMD_GET,
+		.doit		= cgroupstats_user_cmd,
+		.policy		= cgroupstats_cmd_get_policy,
+	},
 };
 
 /* Needed early in initialization */
@@ -702,26 +703,14 @@ static int __init taskstats_init(void)
 {
 	int rc;
 
-	rc = genl_register_family(&family);
+	rc = genl_register_family_with_ops(&family, taskstats_ops,
+					   ARRAY_SIZE(taskstats_ops));
 	if (rc)
 		return rc;
 
-	rc = genl_register_ops(&family, &taskstats_ops);
-	if (rc < 0)
-		goto err;
-
-	rc = genl_register_ops(&family, &cgroupstats_ops);
-	if (rc < 0)
-		goto err_cgroup_ops;
-
 	family_registered = 1;
 	pr_info("registered taskstats version %d\n", TASKSTATS_GENL_VERSION);
 	return 0;
-err_cgroup_ops:
-	genl_unregister_ops(&family, &taskstats_ops);
-err:
-	genl_unregister_family(&family);
-	return rc;
 }
 
 /*
-- 
cgit 


From 9504b3ee1c4490d669feb7622c828771d98b2c23 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 14 Nov 2013 17:14:40 +0100
Subject: hsr: use genl_register_family_with_ops()

This simplifies the code since there's no longer a
need to have error handling in the registration.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/hsr/hsr_netlink.c | 46 +++++++++++++++++-----------------------------
 1 file changed, 17 insertions(+), 29 deletions(-)

diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c
index 4e66bf61f585..8f52a9fb7e85 100644
--- a/net/hsr/hsr_netlink.c
+++ b/net/hsr/hsr_netlink.c
@@ -306,15 +306,6 @@ fail:
 	return res;
 }
 
-static struct genl_ops hsr_ops_get_node_status = {
-	.cmd = HSR_C_GET_NODE_STATUS,
-	.flags = 0,
-	.policy = hsr_genl_policy,
-	.doit = hsr_get_node_status,
-	.dumpit = NULL,
-};
-
-
 /* Get a list of MacAddressA of all nodes known to this node (other than self).
  */
 static int hsr_get_node_list(struct sk_buff *skb_in, struct genl_info *info)
@@ -398,12 +389,21 @@ fail:
 }
 
 
-static struct genl_ops hsr_ops_get_node_list = {
-	.cmd = HSR_C_GET_NODE_LIST,
-	.flags = 0,
-	.policy = hsr_genl_policy,
-	.doit = hsr_get_node_list,
-	.dumpit = NULL,
+static struct genl_ops hsr_ops[] = {
+	{
+		.cmd = HSR_C_GET_NODE_STATUS,
+		.flags = 0,
+		.policy = hsr_genl_policy,
+		.doit = hsr_get_node_status,
+		.dumpit = NULL,
+	},
+	{
+		.cmd = HSR_C_GET_NODE_LIST,
+		.flags = 0,
+		.policy = hsr_genl_policy,
+		.doit = hsr_get_node_list,
+		.dumpit = NULL,
+	},
 };
 
 int __init hsr_netlink_init(void)
@@ -414,18 +414,11 @@ int __init hsr_netlink_init(void)
 	if (rc)
 		goto fail_rtnl_link_register;
 
-	rc = genl_register_family(&hsr_genl_family);
+	rc = genl_register_family_with_ops(&hsr_genl_family, hsr_ops,
+					   ARRAY_SIZE(hsr_ops));
 	if (rc)
 		goto fail_genl_register_family;
 
-	rc = genl_register_ops(&hsr_genl_family, &hsr_ops_get_node_status);
-	if (rc)
-		goto fail_genl_register_ops;
-
-	rc = genl_register_ops(&hsr_genl_family, &hsr_ops_get_node_list);
-	if (rc)
-		goto fail_genl_register_ops_node_list;
-
 	rc = genl_register_mc_group(&hsr_genl_family, &hsr_network_genl_mcgrp);
 	if (rc)
 		goto fail_genl_register_mc_group;
@@ -433,10 +426,6 @@ int __init hsr_netlink_init(void)
 	return 0;
 
 fail_genl_register_mc_group:
-	genl_unregister_ops(&hsr_genl_family, &hsr_ops_get_node_list);
-fail_genl_register_ops_node_list:
-	genl_unregister_ops(&hsr_genl_family, &hsr_ops_get_node_status);
-fail_genl_register_ops:
 	genl_unregister_family(&hsr_genl_family);
 fail_genl_register_family:
 	rtnl_link_unregister(&hsr_link_ops);
@@ -448,7 +437,6 @@ fail_rtnl_link_register:
 void __exit hsr_netlink_exit(void)
 {
 	genl_unregister_mc_group(&hsr_genl_family, &hsr_network_genl_mcgrp);
-	genl_unregister_ops(&hsr_genl_family, &hsr_ops_get_node_status);
 	genl_unregister_family(&hsr_genl_family);
 
 	rtnl_link_unregister(&hsr_link_ops);
-- 
cgit 


From 1c582d915da13ca21ad375ae04ec1bd6193418b2 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 14 Nov 2013 17:14:41 +0100
Subject: ieee802154: use genl_register_family_with_ops()

This simplifies the code since there's no longer a need to
have error handling in the registration.

Unfortunately it means more extern function declarations are
needed, but the overall goal would seem to justify this.

While at it, also fix the registration error path - if the
family registration failed then it shouldn't be unregistered.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ieee802154/ieee802154.h | 19 ++++++++++++--
 net/ieee802154/netlink.c    | 28 +++++++++++++++------
 net/ieee802154/nl-mac.c     | 61 +++++++--------------------------------------
 net/ieee802154/nl-phy.c     | 37 +++------------------------
 4 files changed, 51 insertions(+), 94 deletions(-)

diff --git a/net/ieee802154/ieee802154.h b/net/ieee802154/ieee802154.h
index aadec428e6ec..14d5dab4436f 100644
--- a/net/ieee802154/ieee802154.h
+++ b/net/ieee802154/ieee802154.h
@@ -47,7 +47,22 @@ struct sk_buff *ieee802154_nl_new_reply(struct genl_info *info,
 int ieee802154_nl_reply(struct sk_buff *msg, struct genl_info *info);
 
 extern struct genl_family nl802154_family;
-int nl802154_mac_register(void);
-int nl802154_phy_register(void);
+
+/* genetlink ops/groups */
+int ieee802154_list_phy(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_dump_phy(struct sk_buff *skb, struct netlink_callback *cb);
+int ieee802154_add_iface(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_del_iface(struct sk_buff *skb, struct genl_info *info);
+
+extern struct genl_multicast_group ieee802154_coord_mcgrp;
+extern struct genl_multicast_group ieee802154_beacon_mcgrp;
+
+int ieee802154_associate_req(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_associate_resp(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_disassociate_req(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_list_iface(struct sk_buff *skb, struct genl_info *info);
+int ieee802154_dump_iface(struct sk_buff *skb, struct netlink_callback *cb);
 
 #endif
diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c
index 7e49bbcc6967..eb9faef6782a 100644
--- a/net/ieee802154/netlink.c
+++ b/net/ieee802154/netlink.c
@@ -109,24 +109,39 @@ out:
 	return -ENOBUFS;
 }
 
+static struct genl_ops ieee8021154_ops[] = {
+	/* see nl-phy.c */
+	IEEE802154_DUMP(IEEE802154_LIST_PHY, ieee802154_list_phy,
+			ieee802154_dump_phy),
+	IEEE802154_OP(IEEE802154_ADD_IFACE, ieee802154_add_iface),
+	IEEE802154_OP(IEEE802154_DEL_IFACE, ieee802154_del_iface),
+	/* see nl-mac.c */
+	IEEE802154_OP(IEEE802154_ASSOCIATE_REQ, ieee802154_associate_req),
+	IEEE802154_OP(IEEE802154_ASSOCIATE_RESP, ieee802154_associate_resp),
+	IEEE802154_OP(IEEE802154_DISASSOCIATE_REQ, ieee802154_disassociate_req),
+	IEEE802154_OP(IEEE802154_SCAN_REQ, ieee802154_scan_req),
+	IEEE802154_OP(IEEE802154_START_REQ, ieee802154_start_req),
+	IEEE802154_DUMP(IEEE802154_LIST_IFACE, ieee802154_list_iface,
+			ieee802154_dump_iface),
+};
+
 int __init ieee802154_nl_init(void)
 {
 	int rc;
 
-	rc = genl_register_family(&nl802154_family);
+	rc = genl_register_family_with_ops(&nl802154_family, ieee8021154_ops,
+					   ARRAY_SIZE(ieee8021154_ops));
 	if (rc)
-		goto fail;
+		return rc;
 
-	rc = nl802154_mac_register();
+	rc = genl_register_mc_group(&nl802154_family, &ieee802154_coord_mcgrp);
 	if (rc)
 		goto fail;
 
-	rc = nl802154_phy_register();
+	rc = genl_register_mc_group(&nl802154_family, &ieee802154_beacon_mcgrp);
 	if (rc)
 		goto fail;
-
 	return 0;
-
 fail:
 	genl_unregister_family(&nl802154_family);
 	return rc;
@@ -136,4 +151,3 @@ void __exit ieee802154_nl_exit(void)
 {
 	genl_unregister_family(&nl802154_family);
 }
-
diff --git a/net/ieee802154/nl-mac.c b/net/ieee802154/nl-mac.c
index b0bdd8c51e9c..28d493032132 100644
--- a/net/ieee802154/nl-mac.c
+++ b/net/ieee802154/nl-mac.c
@@ -39,11 +39,11 @@
 
 #include "ieee802154.h"
 
-static struct genl_multicast_group ieee802154_coord_mcgrp = {
+struct genl_multicast_group ieee802154_coord_mcgrp = {
 	.name		= IEEE802154_MCAST_COORD_NAME,
 };
 
-static struct genl_multicast_group ieee802154_beacon_mcgrp = {
+struct genl_multicast_group ieee802154_beacon_mcgrp = {
 	.name		= IEEE802154_MCAST_BEACON_NAME,
 };
 
@@ -309,8 +309,7 @@ static struct net_device *ieee802154_nl_get_dev(struct genl_info *info)
 	return dev;
 }
 
-static int ieee802154_associate_req(struct sk_buff *skb,
-		struct genl_info *info)
+int ieee802154_associate_req(struct sk_buff *skb, struct genl_info *info)
 {
 	struct net_device *dev;
 	struct ieee802154_addr addr;
@@ -357,8 +356,7 @@ out:
 	return ret;
 }
 
-static int ieee802154_associate_resp(struct sk_buff *skb,
-		struct genl_info *info)
+int ieee802154_associate_resp(struct sk_buff *skb, struct genl_info *info)
 {
 	struct net_device *dev;
 	struct ieee802154_addr addr;
@@ -390,8 +388,7 @@ out:
 	return ret;
 }
 
-static int ieee802154_disassociate_req(struct sk_buff *skb,
-		struct genl_info *info)
+int ieee802154_disassociate_req(struct sk_buff *skb, struct genl_info *info)
 {
 	struct net_device *dev;
 	struct ieee802154_addr addr;
@@ -433,7 +430,7 @@ out:
  * PAN_coordinator, battery_life_extension = 0,
  * coord_realignment = 0, security_enable = 0
 */
-static int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info)
+int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info)
 {
 	struct net_device *dev;
 	struct ieee802154_addr addr;
@@ -492,7 +489,7 @@ out:
 	return ret;
 }
 
-static int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info)
+int ieee802154_scan_req(struct sk_buff *skb, struct genl_info *info)
 {
 	struct net_device *dev;
 	int ret = -EOPNOTSUPP;
@@ -530,8 +527,7 @@ out:
 	return ret;
 }
 
-static int ieee802154_list_iface(struct sk_buff *skb,
-	struct genl_info *info)
+int ieee802154_list_iface(struct sk_buff *skb, struct genl_info *info)
 {
 	/* Request for interface name, index, type, IEEE address,
 	   PAN Id, short address */
@@ -565,8 +561,7 @@ out_dev:
 
 }
 
-static int ieee802154_dump_iface(struct sk_buff *skb,
-	struct netlink_callback *cb)
+int ieee802154_dump_iface(struct sk_buff *skb, struct netlink_callback *cb)
 {
 	struct net *net = sock_net(skb->sk);
 	struct net_device *dev;
@@ -590,41 +585,3 @@ cont:
 
 	return skb->len;
 }
-
-static struct genl_ops ieee802154_coordinator_ops[] = {
-	IEEE802154_OP(IEEE802154_ASSOCIATE_REQ, ieee802154_associate_req),
-	IEEE802154_OP(IEEE802154_ASSOCIATE_RESP, ieee802154_associate_resp),
-	IEEE802154_OP(IEEE802154_DISASSOCIATE_REQ, ieee802154_disassociate_req),
-	IEEE802154_OP(IEEE802154_SCAN_REQ, ieee802154_scan_req),
-	IEEE802154_OP(IEEE802154_START_REQ, ieee802154_start_req),
-	IEEE802154_DUMP(IEEE802154_LIST_IFACE, ieee802154_list_iface,
-							ieee802154_dump_iface),
-};
-
-/*
- * No need to unregister as family unregistration will do it.
- */
-int nl802154_mac_register(void)
-{
-	int i;
-	int rc;
-
-	rc = genl_register_mc_group(&nl802154_family,
-			&ieee802154_coord_mcgrp);
-	if (rc)
-		return rc;
-
-	rc = genl_register_mc_group(&nl802154_family,
-			&ieee802154_beacon_mcgrp);
-	if (rc)
-		return rc;
-
-	for (i = 0; i < ARRAY_SIZE(ieee802154_coordinator_ops); i++) {
-		rc = genl_register_ops(&nl802154_family,
-				&ieee802154_coordinator_ops[i]);
-		if (rc)
-			return rc;
-	}
-
-	return 0;
-}
diff --git a/net/ieee802154/nl-phy.c b/net/ieee802154/nl-phy.c
index 22b1a7058fd3..d08c7a43dcd1 100644
--- a/net/ieee802154/nl-phy.c
+++ b/net/ieee802154/nl-phy.c
@@ -77,8 +77,7 @@ out:
 	return -EMSGSIZE;
 }
 
-static int ieee802154_list_phy(struct sk_buff *skb,
-	struct genl_info *info)
+int ieee802154_list_phy(struct sk_buff *skb, struct genl_info *info)
 {
 	/* Request for interface name, index, type, IEEE address,
 	   PAN Id, short address */
@@ -151,8 +150,7 @@ static int ieee802154_dump_phy_iter(struct wpan_phy *phy, void *_data)
 	return 0;
 }
 
-static int ieee802154_dump_phy(struct sk_buff *skb,
-	struct netlink_callback *cb)
+int ieee802154_dump_phy(struct sk_buff *skb, struct netlink_callback *cb)
 {
 	struct dump_phy_data data = {
 		.cb = cb,
@@ -170,8 +168,7 @@ static int ieee802154_dump_phy(struct sk_buff *skb,
 	return skb->len;
 }
 
-static int ieee802154_add_iface(struct sk_buff *skb,
-		struct genl_info *info)
+int ieee802154_add_iface(struct sk_buff *skb, struct genl_info *info)
 {
 	struct sk_buff *msg;
 	struct wpan_phy *phy;
@@ -273,8 +270,7 @@ out_dev:
 	return rc;
 }
 
-static int ieee802154_del_iface(struct sk_buff *skb,
-		struct genl_info *info)
+int ieee802154_del_iface(struct sk_buff *skb, struct genl_info *info)
 {
 	struct sk_buff *msg;
 	struct wpan_phy *phy;
@@ -356,28 +352,3 @@ out_dev:
 
 	return rc;
 }
-
-static struct genl_ops ieee802154_phy_ops[] = {
-	IEEE802154_DUMP(IEEE802154_LIST_PHY, ieee802154_list_phy,
-							ieee802154_dump_phy),
-	IEEE802154_OP(IEEE802154_ADD_IFACE, ieee802154_add_iface),
-	IEEE802154_OP(IEEE802154_DEL_IFACE, ieee802154_del_iface),
-};
-
-/*
- * No need to unregister as family unregistration will do it.
- */
-int nl802154_phy_register(void)
-{
-	int i;
-	int rc;
-
-	for (i = 0; i < ARRAY_SIZE(ieee802154_phy_ops); i++) {
-		rc = genl_register_ops(&nl802154_family,
-				&ieee802154_phy_ops[i]);
-		if (rc)
-			return rc;
-	}
-
-	return 0;
-}
-- 
cgit 


From b61a5eea5904198d45e775c342be010a23decbe3 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 14 Nov 2013 17:14:42 +0100
Subject: wimax: use genl_register_family_with_ops()

This simplifies the code since there's no longer a need to
have error handling in the registration.

Unfortunately it means more extern function declarations are
needed, but the overall goal would seem to justify this.

Due to the removal of duplication in the netlink policies,
this reduces the size of wimax by almost 1k.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/wimax/op-msg.c         | 25 ---------------
 net/wimax/op-reset.c       | 17 ----------
 net/wimax/op-rfkill.c      | 21 ------------
 net/wimax/op-state-get.c   | 17 ----------
 net/wimax/stack.c          | 79 +++++++++++++++++++++++-----------------------
 net/wimax/wimax-internal.h |  7 ++++
 6 files changed, 47 insertions(+), 119 deletions(-)

diff --git a/net/wimax/op-msg.c b/net/wimax/op-msg.c
index 0694d62e4dbc..ff19cbeaf607 100644
--- a/net/wimax/op-msg.c
+++ b/net/wimax/op-msg.c
@@ -321,17 +321,6 @@ int wimax_msg(struct wimax_dev *wimax_dev, const char *pipe_name,
 }
 EXPORT_SYMBOL_GPL(wimax_msg);
 
-
-static const struct nla_policy wimax_gnl_msg_policy[WIMAX_GNL_ATTR_MAX + 1] = {
-	[WIMAX_GNL_MSG_IFIDX] = {
-		.type = NLA_U32,
-	},
-	[WIMAX_GNL_MSG_DATA] = {
-		.type = NLA_UNSPEC,	/* libnl doesn't grok BINARY yet */
-	},
-};
-
-
 /*
  * Relays a message from user space to the driver
  *
@@ -340,7 +329,6 @@ static const struct nla_policy wimax_gnl_msg_policy[WIMAX_GNL_ATTR_MAX + 1] = {
  *
  * This call will block while handling/relaying the message.
  */
-static
 int wimax_gnl_doit_msg_from_user(struct sk_buff *skb, struct genl_info *info)
 {
 	int result, ifindex;
@@ -418,16 +406,3 @@ error_no_wimax_dev:
 	return result;
 }
 
-
-/*
- * Generic Netlink glue
- */
-
-struct genl_ops wimax_gnl_msg_from_user = {
-	.cmd = WIMAX_GNL_OP_MSG_FROM_USER,
-	.flags = GENL_ADMIN_PERM,
-	.policy = wimax_gnl_msg_policy,
-	.doit = wimax_gnl_doit_msg_from_user,
-	.dumpit = NULL,
-};
-
diff --git a/net/wimax/op-reset.c b/net/wimax/op-reset.c
index 7ceffe39d70e..eb4580784d9d 100644
--- a/net/wimax/op-reset.c
+++ b/net/wimax/op-reset.c
@@ -92,13 +92,6 @@ int wimax_reset(struct wimax_dev *wimax_dev)
 EXPORT_SYMBOL(wimax_reset);
 
 
-static const struct nla_policy wimax_gnl_reset_policy[WIMAX_GNL_ATTR_MAX + 1] = {
-	[WIMAX_GNL_RESET_IFIDX] = {
-		.type = NLA_U32,
-	},
-};
-
-
 /*
  * Exporting to user space over generic netlink
  *
@@ -106,7 +99,6 @@ static const struct nla_policy wimax_gnl_reset_policy[WIMAX_GNL_ATTR_MAX + 1] =
  *
  * No attributes.
  */
-static
 int wimax_gnl_doit_reset(struct sk_buff *skb, struct genl_info *info)
 {
 	int result, ifindex;
@@ -130,12 +122,3 @@ error_no_wimax_dev:
 	d_fnend(3, NULL, "(skb %p info %p) = %d\n", skb, info, result);
 	return result;
 }
-
-
-struct genl_ops wimax_gnl_reset = {
-	.cmd = WIMAX_GNL_OP_RESET,
-	.flags = GENL_ADMIN_PERM,
-	.policy = wimax_gnl_reset_policy,
-	.doit = wimax_gnl_doit_reset,
-	.dumpit = NULL,
-};
diff --git a/net/wimax/op-rfkill.c b/net/wimax/op-rfkill.c
index 7ab60babdd22..403078d670a9 100644
--- a/net/wimax/op-rfkill.c
+++ b/net/wimax/op-rfkill.c
@@ -411,17 +411,6 @@ void wimax_rfkill_rm(struct wimax_dev *wimax_dev)
  * just query).
  */
 
-static const struct nla_policy wimax_gnl_rfkill_policy[WIMAX_GNL_ATTR_MAX + 1] = {
-	[WIMAX_GNL_RFKILL_IFIDX] = {
-		.type = NLA_U32,
-	},
-	[WIMAX_GNL_RFKILL_STATE] = {
-		.type = NLA_U32		/* enum wimax_rf_state */
-	},
-};
-
-
-static
 int wimax_gnl_doit_rfkill(struct sk_buff *skb, struct genl_info *info)
 {
 	int result, ifindex;
@@ -457,13 +446,3 @@ error_no_wimax_dev:
 	d_fnend(3, NULL, "(skb %p info %p) = %d\n", skb, info, result);
 	return result;
 }
-
-
-struct genl_ops wimax_gnl_rfkill = {
-	.cmd = WIMAX_GNL_OP_RFKILL,
-	.flags = GENL_ADMIN_PERM,
-	.policy = wimax_gnl_rfkill_policy,
-	.doit = wimax_gnl_doit_rfkill,
-	.dumpit = NULL,
-};
-
diff --git a/net/wimax/op-state-get.c b/net/wimax/op-state-get.c
index aff8776e2d41..995c08c827b5 100644
--- a/net/wimax/op-state-get.c
+++ b/net/wimax/op-state-get.c
@@ -33,13 +33,6 @@
 #include "debug-levels.h"
 
 
-static const struct nla_policy wimax_gnl_state_get_policy[WIMAX_GNL_ATTR_MAX + 1] = {
-	[WIMAX_GNL_STGET_IFIDX] = {
-		.type = NLA_U32,
-	},
-};
-
-
 /*
  * Exporting to user space over generic netlink
  *
@@ -48,7 +41,6 @@ static const struct nla_policy wimax_gnl_state_get_policy[WIMAX_GNL_ATTR_MAX + 1
  *
  * No attributes.
  */
-static
 int wimax_gnl_doit_state_get(struct sk_buff *skb, struct genl_info *info)
 {
 	int result, ifindex;
@@ -72,12 +64,3 @@ error_no_wimax_dev:
 	d_fnend(3, NULL, "(skb %p info %p) = %d\n", skb, info, result);
 	return result;
 }
-
-
-struct genl_ops wimax_gnl_state_get = {
-	.cmd = WIMAX_GNL_OP_STATE_GET,
-	.flags = GENL_ADMIN_PERM,
-	.policy = wimax_gnl_state_get_policy,
-	.doit = wimax_gnl_doit_state_get,
-	.dumpit = NULL,
-};
diff --git a/net/wimax/stack.c b/net/wimax/stack.c
index a6470ac39498..4b7f15a50087 100644
--- a/net/wimax/stack.c
+++ b/net/wimax/stack.c
@@ -402,22 +402,44 @@ void wimax_dev_init(struct wimax_dev *wimax_dev)
 }
 EXPORT_SYMBOL_GPL(wimax_dev_init);
 
-/*
- * This extern is declared here because it's easier to keep track --
- * both declarations are a list of the same
- */
-extern struct genl_ops
-	wimax_gnl_msg_from_user,
-	wimax_gnl_reset,
-	wimax_gnl_rfkill,
-	wimax_gnl_state_get;
+static const struct nla_policy wimax_gnl_policy[WIMAX_GNL_ATTR_MAX + 1] = {
+	[WIMAX_GNL_RESET_IFIDX] = { .type = NLA_U32, },
+	[WIMAX_GNL_RFKILL_IFIDX] = { .type = NLA_U32, },
+	[WIMAX_GNL_RFKILL_STATE] = {
+		.type = NLA_U32		/* enum wimax_rf_state */
+	},
+	[WIMAX_GNL_STGET_IFIDX] = { .type = NLA_U32, },
+	[WIMAX_GNL_MSG_IFIDX] = { .type = NLA_U32, },
+	[WIMAX_GNL_MSG_DATA] = {
+		.type = NLA_UNSPEC,	/* libnl doesn't grok BINARY yet */
+	},
+};
 
-static
-struct genl_ops *wimax_gnl_ops[] = {
-	&wimax_gnl_msg_from_user,
-	&wimax_gnl_reset,
-	&wimax_gnl_rfkill,
-	&wimax_gnl_state_get,
+static struct genl_ops wimax_gnl_ops[] = {
+	{
+		.cmd = WIMAX_GNL_OP_MSG_FROM_USER,
+		.flags = GENL_ADMIN_PERM,
+		.policy = wimax_gnl_policy,
+		.doit = wimax_gnl_doit_msg_from_user,
+	},
+	{
+		.cmd = WIMAX_GNL_OP_RESET,
+		.flags = GENL_ADMIN_PERM,
+		.policy = wimax_gnl_policy,
+		.doit = wimax_gnl_doit_reset,
+	},
+	{
+		.cmd = WIMAX_GNL_OP_RFKILL,
+		.flags = GENL_ADMIN_PERM,
+		.policy = wimax_gnl_policy,
+		.doit = wimax_gnl_doit_rfkill,
+	},
+	{
+		.cmd = WIMAX_GNL_OP_STATE_GET,
+		.flags = GENL_ADMIN_PERM,
+		.policy = wimax_gnl_policy,
+		.doit = wimax_gnl_doit_state_get,
+	},
 };
 
 
@@ -567,7 +589,7 @@ struct genl_multicast_group wimax_gnl_mcg = {
 static
 int __init wimax_subsys_init(void)
 {
-	int result, cnt;
+	int result;
 
 	d_fnstart(4, NULL, "()\n");
 	d_parse_params(D_LEVEL, D_LEVEL_SIZE, wimax_debug_params,
@@ -575,26 +597,14 @@ int __init wimax_subsys_init(void)
 
 	snprintf(wimax_gnl_family.name, sizeof(wimax_gnl_family.name),
 		 "WiMAX");
-	result = genl_register_family(&wimax_gnl_family);
+	result = genl_register_family_with_ops(&wimax_gnl_family, wimax_gnl_ops,
+					       ARRAY_SIZE(wimax_gnl_ops));
 	if (unlikely(result < 0)) {
 		printk(KERN_ERR "cannot register generic netlink family: %d\n",
 		       result);
 		goto error_register_family;
 	}
 
-	for (cnt = 0; cnt < ARRAY_SIZE(wimax_gnl_ops); cnt++) {
-		result = genl_register_ops(&wimax_gnl_family,
-					   wimax_gnl_ops[cnt]);
-		d_printf(4, NULL, "registering generic netlink op code "
-			 "%u: %d\n", wimax_gnl_ops[cnt]->cmd, result);
-		if (unlikely(result < 0)) {
-			printk(KERN_ERR "cannot register generic netlink op "
-			       "code %u: %d\n",
-			       wimax_gnl_ops[cnt]->cmd, result);
-			goto error_register_ops;
-		}
-	}
-
 	result = genl_register_mc_group(&wimax_gnl_family, &wimax_gnl_mcg);
 	if (result < 0)
 		goto error_mc_group;
@@ -602,10 +612,6 @@ int __init wimax_subsys_init(void)
 	return 0;
 
 error_mc_group:
-error_register_ops:
-	for (cnt--; cnt >= 0; cnt--)
-		genl_unregister_ops(&wimax_gnl_family,
-				    wimax_gnl_ops[cnt]);
 	genl_unregister_family(&wimax_gnl_family);
 error_register_family:
 	d_fnend(4, NULL, "() = %d\n", result);
@@ -619,12 +625,7 @@ module_init(wimax_subsys_init);
 static
 void __exit wimax_subsys_exit(void)
 {
-	int cnt;
 	wimax_id_table_release();
-	genl_unregister_mc_group(&wimax_gnl_family, &wimax_gnl_mcg);
-	for (cnt = ARRAY_SIZE(wimax_gnl_ops) - 1; cnt >= 0; cnt--)
-		genl_unregister_ops(&wimax_gnl_family,
-				    wimax_gnl_ops[cnt]);
 	genl_unregister_family(&wimax_gnl_family);
 }
 module_exit(wimax_subsys_exit);
diff --git a/net/wimax/wimax-internal.h b/net/wimax/wimax-internal.h
index 5dcd9c067bf0..8567d3079a83 100644
--- a/net/wimax/wimax-internal.h
+++ b/net/wimax/wimax-internal.h
@@ -84,8 +84,15 @@ void wimax_id_table_release(void);
 int wimax_rfkill_add(struct wimax_dev *);
 void wimax_rfkill_rm(struct wimax_dev *);
 
+/* generic netlink */
 extern struct genl_family wimax_gnl_family;
 extern struct genl_multicast_group wimax_gnl_mcg;
 
+/* ops */
+int wimax_gnl_doit_msg_from_user(struct sk_buff *skb, struct genl_info *info);
+int wimax_gnl_doit_reset(struct sk_buff *skb, struct genl_info *info);
+int wimax_gnl_doit_rfkill(struct sk_buff *skb, struct genl_info *info);
+int wimax_gnl_doit_state_get(struct sk_buff *skb, struct genl_info *info);
+
 #endif /* #ifdef __KERNEL__ */
 #endif /* #ifndef __WIMAX_INTERNAL_H__ */
-- 
cgit 


From 3686ec5e84977eddc796903177e7e0a122585c11 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 14 Nov 2013 17:14:43 +0100
Subject: genetlink: remove genl_register_ops/genl_unregister_ops

genl_register_ops() is still needed for internal registration,
but is no longer available to users of the API.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/genetlink.h |  2 --
 net/netlink/genetlink.c | 57 +------------------------------------------------
 2 files changed, 1 insertion(+), 58 deletions(-)

diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 9b787b62cf16..617d718524b0 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -141,8 +141,6 @@ static inline int genl_register_family_with_ops(struct genl_family *family,
 }
 
 int genl_unregister_family(struct genl_family *family);
-int genl_register_ops(struct genl_family *, struct genl_ops *ops);
-int genl_unregister_ops(struct genl_family *, struct genl_ops *ops);
 int genl_register_mc_group(struct genl_family *family,
 			   struct genl_multicast_group *grp);
 void genl_unregister_mc_group(struct genl_family *family,
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 0c741cec4d0d..fbccb45e8cc1 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -283,22 +283,7 @@ static void genl_unregister_mc_groups(struct genl_family *family)
 		__genl_unregister_mc_group(family, grp);
 }
 
-/**
- * genl_register_ops - register generic netlink operations
- * @family: generic netlink family
- * @ops: operations to be registered
- *
- * Registers the specified operations and assigns them to the specified
- * family. Either a doit or dumpit callback must be specified or the
- * operation will fail. Only one operation structure per command
- * identifier may be registered.
- *
- * See include/net/genetlink.h for more documenation on the operations
- * structure.
- *
- * Returns 0 on success or a negative error code.
- */
-int genl_register_ops(struct genl_family *family, struct genl_ops *ops)
+static int genl_register_ops(struct genl_family *family, struct genl_ops *ops)
 {
 	int err = -EINVAL;
 
@@ -326,42 +311,6 @@ int genl_register_ops(struct genl_family *family, struct genl_ops *ops)
 errout:
 	return err;
 }
-EXPORT_SYMBOL(genl_register_ops);
-
-/**
- * genl_unregister_ops - unregister generic netlink operations
- * @family: generic netlink family
- * @ops: operations to be unregistered
- *
- * Unregisters the specified operations and unassigns them from the
- * specified family. The operation blocks until the current message
- * processing has finished and doesn't start again until the
- * unregister process has finished.
- *
- * Note: It is not necessary to unregister all operations before
- *       unregistering the family, unregistering the family will cause
- *       all assigned operations to be unregistered automatically.
- *
- * Returns 0 on success or a negative error code.
- */
-int genl_unregister_ops(struct genl_family *family, struct genl_ops *ops)
-{
-	struct genl_ops *rc;
-
-	genl_lock_all();
-	list_for_each_entry(rc, &family->ops_list, ops_list) {
-		if (rc == ops) {
-			list_del(&ops->ops_list);
-			genl_unlock_all();
-			genl_ctrl_event(CTRL_CMD_DELOPS, ops);
-			return 0;
-		}
-	}
-	genl_unlock_all();
-
-	return -ENOENT;
-}
-EXPORT_SYMBOL(genl_unregister_ops);
 
 /**
  * __genl_register_family - register a generic netlink family
@@ -451,10 +400,6 @@ EXPORT_SYMBOL(__genl_register_family);
  * See include/net/genetlink.h for more documenation on the operations
  * structure.
  *
- * This is equivalent to calling genl_register_family() followed by
- * genl_register_ops() for every operation entry in the table taking
- * care to unregister the family on error path.
- *
  * Return 0 on success or a negative error code.
  */
 int __genl_register_family_with_ops(struct genl_family *family,
-- 
cgit 


From d91824c08fbcb265ec930d863fa905e8daa836a4 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 14 Nov 2013 17:14:44 +0100
Subject: genetlink: register family ops as array

Instead of using a linked list, use an array. This reduces
the data size needed by the users of genetlink, for example
in wireless (net/wireless/nl80211.c) on 64-bit it frees up
over 1K of data space.

Remove the attempted sending of CTRL_CMD_NEWOPS ctrl event
since genl_ctrl_event(CTRL_CMD_NEWOPS, ...) only returns
-EINVAL anyway, therefore no such event could ever be sent.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/genetlink.h |  7 +++--
 net/netlink/genetlink.c | 78 +++++++++++++++++++++----------------------------
 2 files changed, 37 insertions(+), 48 deletions(-)

diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 617d718524b0..d4802af1a8b3 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -39,9 +39,10 @@ struct genl_info;
  * @post_doit: called after an operation's doit callback, it may
  *	undo operations done by pre_doit, for example release locks
  * @attrbuf: buffer to store parsed attributes
- * @ops_list: list of all assigned operations
  * @family_list: family list
  * @mcast_groups: multicast groups list
+ * @ops: the operations supported by this family (private)
+ * @n_ops: number of operations supported by this family (private)
  */
 struct genl_family {
 	unsigned int		id;
@@ -58,7 +59,8 @@ struct genl_family {
 					     struct sk_buff *skb,
 					     struct genl_info *info);
 	struct nlattr **	attrbuf;	/* private */
-	struct list_head	ops_list;	/* private */
+	struct genl_ops *	ops;		/* private */
+	unsigned int		n_ops;		/* private */
 	struct list_head	family_list;	/* private */
 	struct list_head	mcast_groups;	/* private */
 	struct module		*module;
@@ -119,7 +121,6 @@ struct genl_ops {
 	int		       (*dumpit)(struct sk_buff *skb,
 					 struct netlink_callback *cb);
 	int		       (*done)(struct netlink_callback *cb);
-	struct list_head	ops_list;
 };
 
 int __genl_register_family(struct genl_family *family);
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index fbccb45e8cc1..d8273b057763 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -108,11 +108,11 @@ static struct genl_family *genl_family_find_byname(char *name)
 
 static struct genl_ops *genl_get_cmd(u8 cmd, struct genl_family *family)
 {
-	struct genl_ops *ops;
+	int i;
 
-	list_for_each_entry(ops, &family->ops_list, ops_list)
-		if (ops->cmd == cmd)
-			return ops;
+	for (i = 0; i < family->n_ops; i++)
+		if (family->ops[i].cmd == cmd)
+			return &family->ops[i];
 
 	return NULL;
 }
@@ -283,33 +283,30 @@ static void genl_unregister_mc_groups(struct genl_family *family)
 		__genl_unregister_mc_group(family, grp);
 }
 
-static int genl_register_ops(struct genl_family *family, struct genl_ops *ops)
+static int genl_validate_add_ops(struct genl_family *family, struct genl_ops *ops,
+				 unsigned int n_ops)
 {
-	int err = -EINVAL;
-
-	if (ops->dumpit == NULL && ops->doit == NULL)
-		goto errout;
-
-	if (genl_get_cmd(ops->cmd, family)) {
-		err = -EEXIST;
-		goto errout;
+	int i, j;
+
+	for (i = 0; i < n_ops; i++) {
+		if (ops[i].dumpit == NULL && ops[i].doit == NULL)
+			return -EINVAL;
+		for (j = i + 1; j < n_ops; j++)
+			if (ops[i].cmd == ops[j].cmd)
+				return -EINVAL;
+		if (ops[i].dumpit)
+			ops[i].flags |= GENL_CMD_CAP_DUMP;
+		if (ops[i].doit)
+			ops[i].flags |= GENL_CMD_CAP_DO;
+		if (ops[i].policy)
+			ops[i].flags |= GENL_CMD_CAP_HASPOL;
 	}
 
-	if (ops->dumpit)
-		ops->flags |= GENL_CMD_CAP_DUMP;
-	if (ops->doit)
-		ops->flags |= GENL_CMD_CAP_DO;
-	if (ops->policy)
-		ops->flags |= GENL_CMD_CAP_HASPOL;
-
-	genl_lock_all();
-	list_add_tail(&ops->ops_list, &family->ops_list);
-	genl_unlock_all();
+	/* family is not registered yet, so no locking needed */
+	family->ops = ops;
+	family->n_ops = n_ops;
 
-	genl_ctrl_event(CTRL_CMD_NEWOPS, ops);
-	err = 0;
-errout:
-	return err;
+	return 0;
 }
 
 /**
@@ -333,7 +330,6 @@ int __genl_register_family(struct genl_family *family)
 	if (family->id > GENL_MAX_ID)
 		goto errout;
 
-	INIT_LIST_HEAD(&family->ops_list);
 	INIT_LIST_HEAD(&family->mcast_groups);
 
 	genl_lock_all();
@@ -405,21 +401,13 @@ EXPORT_SYMBOL(__genl_register_family);
 int __genl_register_family_with_ops(struct genl_family *family,
 	struct genl_ops *ops, size_t n_ops)
 {
-	int err, i;
+	int err;
 
-	err = __genl_register_family(family);
+	err = genl_validate_add_ops(family, ops, n_ops);
 	if (err)
 		return err;
 
-	for (i = 0; i < n_ops; ++i, ++ops) {
-		err = genl_register_ops(family, ops);
-		if (err)
-			goto err_out;
-	}
-	return 0;
-err_out:
-	genl_unregister_family(family);
-	return err;
+	return __genl_register_family(family);
 }
 EXPORT_SYMBOL(__genl_register_family_with_ops);
 
@@ -444,7 +432,7 @@ int genl_unregister_family(struct genl_family *family)
 			continue;
 
 		list_del(&rc->family_list);
-		INIT_LIST_HEAD(&family->ops_list);
+		family->n_ops = 0;
 		genl_unlock_all();
 
 		kfree(family->attrbuf);
@@ -671,19 +659,19 @@ static int ctrl_fill_info(struct genl_family *family, u32 portid, u32 seq,
 	    nla_put_u32(skb, CTRL_ATTR_MAXATTR, family->maxattr))
 		goto nla_put_failure;
 
-	if (!list_empty(&family->ops_list)) {
+	if (family->n_ops) {
 		struct nlattr *nla_ops;
-		struct genl_ops *ops;
-		int idx = 1;
+		int i;
 
 		nla_ops = nla_nest_start(skb, CTRL_ATTR_OPS);
 		if (nla_ops == NULL)
 			goto nla_put_failure;
 
-		list_for_each_entry(ops, &family->ops_list, ops_list) {
+		for (i = 0; i < family->n_ops; i++) {
 			struct nlattr *nest;
+			struct genl_ops *ops = &family->ops[i];
 
-			nest = nla_nest_start(skb, idx++);
+			nest = nla_nest_start(skb, i + 1);
 			if (nest == NULL)
 				goto nla_put_failure;
 
-- 
cgit 


From f84f771d942182e39a56ec2989d6a67d3ca33a13 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 14 Nov 2013 17:14:45 +0100
Subject: genetlink: allow making ops const

Allow making the ops array const by not modifying the ops
flags on registration but rather only when ops are sent
out in the family information.

No users are updated yet except for the pre_doit/post_doit
calls in wireless (the only ones that exist now.)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/genetlink.h | 10 +++++-----
 net/netlink/genetlink.c | 36 +++++++++++++++++++++---------------
 net/wireless/nl80211.c  |  8 ++++----
 3 files changed, 30 insertions(+), 24 deletions(-)

diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index d4802af1a8b3..d87486aa0611 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -52,14 +52,14 @@ struct genl_family {
 	unsigned int		maxattr;
 	bool			netnsok;
 	bool			parallel_ops;
-	int			(*pre_doit)(struct genl_ops *ops,
+	int			(*pre_doit)(const struct genl_ops *ops,
 					    struct sk_buff *skb,
 					    struct genl_info *info);
-	void			(*post_doit)(struct genl_ops *ops,
+	void			(*post_doit)(const struct genl_ops *ops,
 					     struct sk_buff *skb,
 					     struct genl_info *info);
 	struct nlattr **	attrbuf;	/* private */
-	struct genl_ops *	ops;		/* private */
+	const struct genl_ops *	ops;		/* private */
 	unsigned int		n_ops;		/* private */
 	struct list_head	family_list;	/* private */
 	struct list_head	mcast_groups;	/* private */
@@ -132,10 +132,10 @@ static inline int genl_register_family(struct genl_family *family)
 }
 
 int __genl_register_family_with_ops(struct genl_family *family,
-				    struct genl_ops *ops, size_t n_ops);
+				    const struct genl_ops *ops, size_t n_ops);
 
 static inline int genl_register_family_with_ops(struct genl_family *family,
-	struct genl_ops *ops, size_t n_ops)
+	const struct genl_ops *ops, size_t n_ops)
 {
 	family->module = THIS_MODULE;
 	return __genl_register_family_with_ops(family, ops, n_ops);
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index d8273b057763..a7c62d3d05a1 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -106,7 +106,7 @@ static struct genl_family *genl_family_find_byname(char *name)
 	return NULL;
 }
 
-static struct genl_ops *genl_get_cmd(u8 cmd, struct genl_family *family)
+static const struct genl_ops *genl_get_cmd(u8 cmd, struct genl_family *family)
 {
 	int i;
 
@@ -283,7 +283,8 @@ static void genl_unregister_mc_groups(struct genl_family *family)
 		__genl_unregister_mc_group(family, grp);
 }
 
-static int genl_validate_add_ops(struct genl_family *family, struct genl_ops *ops,
+static int genl_validate_add_ops(struct genl_family *family,
+				 const struct genl_ops *ops,
 				 unsigned int n_ops)
 {
 	int i, j;
@@ -294,12 +295,6 @@ static int genl_validate_add_ops(struct genl_family *family, struct genl_ops *op
 		for (j = i + 1; j < n_ops; j++)
 			if (ops[i].cmd == ops[j].cmd)
 				return -EINVAL;
-		if (ops[i].dumpit)
-			ops[i].flags |= GENL_CMD_CAP_DUMP;
-		if (ops[i].doit)
-			ops[i].flags |= GENL_CMD_CAP_DO;
-		if (ops[i].policy)
-			ops[i].flags |= GENL_CMD_CAP_HASPOL;
 	}
 
 	/* family is not registered yet, so no locking needed */
@@ -399,7 +394,7 @@ EXPORT_SYMBOL(__genl_register_family);
  * Return 0 on success or a negative error code.
  */
 int __genl_register_family_with_ops(struct genl_family *family,
-	struct genl_ops *ops, size_t n_ops)
+	const struct genl_ops *ops, size_t n_ops)
 {
 	int err;
 
@@ -479,7 +474,8 @@ EXPORT_SYMBOL(genlmsg_put);
 
 static int genl_lock_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
 {
-	struct genl_ops *ops = cb->data;
+	/* our ops are always const - netlink API doesn't propagate that */
+	const struct genl_ops *ops = cb->data;
 	int rc;
 
 	genl_lock();
@@ -490,7 +486,8 @@ static int genl_lock_dumpit(struct sk_buff *skb, struct netlink_callback *cb)
 
 static int genl_lock_done(struct netlink_callback *cb)
 {
-	struct genl_ops *ops = cb->data;
+	/* our ops are always const - netlink API doesn't propagate that */
+	const struct genl_ops *ops = cb->data;
 	int rc = 0;
 
 	if (ops->done) {
@@ -505,7 +502,7 @@ static int genl_family_rcv_msg(struct genl_family *family,
 			       struct sk_buff *skb,
 			       struct nlmsghdr *nlh)
 {
-	struct genl_ops *ops;
+	const struct genl_ops *ops;
 	struct net *net = sock_net(skb->sk);
 	struct genl_info info;
 	struct genlmsghdr *hdr = nlmsg_data(nlh);
@@ -537,7 +534,8 @@ static int genl_family_rcv_msg(struct genl_family *family,
 		if (!family->parallel_ops) {
 			struct netlink_dump_control c = {
 				.module = family->module,
-				.data = ops,
+				/* we have const, but the netlink API doesn't */
+				.data = (void *)ops,
 				.dump = genl_lock_dumpit,
 				.done = genl_lock_done,
 			};
@@ -669,14 +667,22 @@ static int ctrl_fill_info(struct genl_family *family, u32 portid, u32 seq,
 
 		for (i = 0; i < family->n_ops; i++) {
 			struct nlattr *nest;
-			struct genl_ops *ops = &family->ops[i];
+			const struct genl_ops *ops = &family->ops[i];
+			u32 flags = ops->flags;
+
+			if (ops->dumpit)
+				flags |= GENL_CMD_CAP_DUMP;
+			if (ops->doit)
+				flags |= GENL_CMD_CAP_DO;
+			if (ops->policy)
+				flags |= GENL_CMD_CAP_HASPOL;
 
 			nest = nla_nest_start(skb, i + 1);
 			if (nest == NULL)
 				goto nla_put_failure;
 
 			if (nla_put_u32(skb, CTRL_ATTR_OP_ID, ops->cmd) ||
-			    nla_put_u32(skb, CTRL_ATTR_OP_FLAGS, ops->flags))
+			    nla_put_u32(skb, CTRL_ATTR_OP_FLAGS, flags))
 				goto nla_put_failure;
 
 			nla_nest_end(skb, nest);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index a7f4e7902104..3fef55958e98 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -30,9 +30,9 @@ static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
 				   struct cfg80211_crypto_settings *settings,
 				   int cipher_limit);
 
-static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
+static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
 			    struct genl_info *info);
-static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
+static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
 			      struct genl_info *info);
 
 /* the netlink family */
@@ -8851,7 +8851,7 @@ static int nl80211_crit_protocol_stop(struct sk_buff *skb,
 #define NL80211_FLAG_NEED_WDEV_UP	(NL80211_FLAG_NEED_WDEV |\
 					 NL80211_FLAG_CHECK_NETDEV_UP)
 
-static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
+static int nl80211_pre_doit(const struct genl_ops *ops, struct sk_buff *skb,
 			    struct genl_info *info)
 {
 	struct cfg80211_registered_device *rdev;
@@ -8920,7 +8920,7 @@ static int nl80211_pre_doit(struct genl_ops *ops, struct sk_buff *skb,
 	return 0;
 }
 
-static void nl80211_post_doit(struct genl_ops *ops, struct sk_buff *skb,
+static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
 			      struct genl_info *info)
 {
 	if (info->user_ptr[1]) {
-- 
cgit 


From 4534de8305b3f1460a527a0cda0e3dc2224c6f0c Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 14 Nov 2013 17:14:46 +0100
Subject: genetlink: make all genl_ops users const

Now that genl_ops are no longer modified in place when
registering, they can be made const. This patch was done
mostly with spatch:

@@
identifier ops;
@@
+const
 struct genl_ops ops[] = {
 ...
 };

(except the struct thing in net/openvswitch/datapath.c)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/team/team.c               |  2 +-
 drivers/net/wireless/mac80211_hwsim.c |  2 +-
 kernel/taskstats.c                    |  2 +-
 net/core/drop_monitor.c               |  2 +-
 net/hsr/hsr_netlink.c                 |  2 +-
 net/ieee802154/netlink.c              |  2 +-
 net/ipv4/tcp_metrics.c                |  2 +-
 net/irda/irnetlink.c                  |  2 +-
 net/l2tp/l2tp_netlink.c               |  2 +-
 net/netfilter/ipvs/ip_vs_ctl.c        |  2 +-
 net/netlabel/netlabel_cipso_v4.c      |  2 +-
 net/netlabel/netlabel_mgmt.c          |  2 +-
 net/netlabel/netlabel_unlabeled.c     |  2 +-
 net/nfc/netlink.c                     |  2 +-
 net/openvswitch/datapath.c            | 10 +++++-----
 net/wimax/stack.c                     |  2 +-
 net/wireless/nl80211.c                |  2 +-
 17 files changed, 21 insertions(+), 21 deletions(-)

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 50e43e64d51d..6390254beb7d 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -2644,7 +2644,7 @@ static int team_nl_cmd_port_list_get(struct sk_buff *skb,
 	return err;
 }
 
-static struct genl_ops team_nl_ops[] = {
+static const struct genl_ops team_nl_ops[] = {
 	{
 		.cmd = TEAM_CMD_NOOP,
 		.doit = team_nl_cmd_noop,
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index de0df86704e7..cfc3fda79a2d 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -2097,7 +2097,7 @@ out:
 }
 
 /* Generic Netlink operations array */
-static struct genl_ops hwsim_ops[] = {
+static const struct genl_ops hwsim_ops[] = {
 	{
 		.cmd = HWSIM_CMD_REGISTER,
 		.policy = hwsim_genl_policy,
diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index 609e77f68687..76595cd9d211 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -673,7 +673,7 @@ err:
 	nlmsg_free(rep_skb);
 }
 
-static struct genl_ops taskstats_ops[] = {
+static const struct genl_ops taskstats_ops[] = {
 	{
 		.cmd		= TASKSTATS_CMD_GET,
 		.doit		= taskstats_user_cmd,
diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index 5e78d44333b9..f9fe2f22d20b 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -333,7 +333,7 @@ out:
 	return NOTIFY_DONE;
 }
 
-static struct genl_ops dropmon_ops[] = {
+static const struct genl_ops dropmon_ops[] = {
 	{
 		.cmd = NET_DM_CMD_CONFIG,
 		.doit = net_dm_cmd_config,
diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c
index 8f52a9fb7e85..79d72ca309ce 100644
--- a/net/hsr/hsr_netlink.c
+++ b/net/hsr/hsr_netlink.c
@@ -389,7 +389,7 @@ fail:
 }
 
 
-static struct genl_ops hsr_ops[] = {
+static const struct genl_ops hsr_ops[] = {
 	{
 		.cmd = HSR_C_GET_NODE_STATUS,
 		.flags = 0,
diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c
index eb9faef6782a..3ffcdbb56aab 100644
--- a/net/ieee802154/netlink.c
+++ b/net/ieee802154/netlink.c
@@ -109,7 +109,7 @@ out:
 	return -ENOBUFS;
 }
 
-static struct genl_ops ieee8021154_ops[] = {
+static const struct genl_ops ieee8021154_ops[] = {
 	/* see nl-phy.c */
 	IEEE802154_DUMP(IEEE802154_LIST_PHY, ieee802154_list_phy,
 			ieee802154_dump_phy),
diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c
index d3ee2e0c28b6..8c121b523eee 100644
--- a/net/ipv4/tcp_metrics.c
+++ b/net/ipv4/tcp_metrics.c
@@ -991,7 +991,7 @@ static int tcp_metrics_nl_cmd_del(struct sk_buff *skb, struct genl_info *info)
 	return 0;
 }
 
-static struct genl_ops tcp_metrics_nl_ops[] = {
+static const struct genl_ops tcp_metrics_nl_ops[] = {
 	{
 		.cmd = TCP_METRICS_CMD_GET,
 		.doit = tcp_metrics_nl_cmd_get,
diff --git a/net/irda/irnetlink.c b/net/irda/irnetlink.c
index c32971269280..bf5d7d476dae 100644
--- a/net/irda/irnetlink.c
+++ b/net/irda/irnetlink.c
@@ -131,7 +131,7 @@ static const struct nla_policy irda_nl_policy[IRDA_NL_ATTR_MAX + 1] = {
 	[IRDA_NL_ATTR_MODE] = { .type = NLA_U32 },
 };
 
-static struct genl_ops irda_nl_ops[] = {
+static const struct genl_ops irda_nl_ops[] = {
 	{
 		.cmd = IRDA_NL_CMD_SET_MODE,
 		.doit = irda_nl_set_mode,
diff --git a/net/l2tp/l2tp_netlink.c b/net/l2tp/l2tp_netlink.c
index be446d517bc9..57db66e24f1f 100644
--- a/net/l2tp/l2tp_netlink.c
+++ b/net/l2tp/l2tp_netlink.c
@@ -793,7 +793,7 @@ static struct nla_policy l2tp_nl_policy[L2TP_ATTR_MAX + 1] = {
 	},
 };
 
-static struct genl_ops l2tp_nl_ops[] = {
+static const struct genl_ops l2tp_nl_ops[] = {
 	{
 		.cmd = L2TP_CMD_NOOP,
 		.doit = l2tp_nl_cmd_noop,
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index 62786a495cea..fc8a04ed8854 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -3567,7 +3567,7 @@ out:
 }
 
 
-static struct genl_ops ip_vs_genl_ops[] __read_mostly = {
+static const struct genl_ops ip_vs_genl_ops[] __read_mostly = {
 	{
 		.cmd	= IPVS_CMD_NEW_SERVICE,
 		.flags	= GENL_ADMIN_PERM,
diff --git a/net/netlabel/netlabel_cipso_v4.c b/net/netlabel/netlabel_cipso_v4.c
index a1100640495d..706691739b99 100644
--- a/net/netlabel/netlabel_cipso_v4.c
+++ b/net/netlabel/netlabel_cipso_v4.c
@@ -737,7 +737,7 @@ static int netlbl_cipsov4_remove(struct sk_buff *skb, struct genl_info *info)
  * NetLabel Generic NETLINK Command Definitions
  */
 
-static struct genl_ops netlbl_cipsov4_ops[] = {
+static const struct genl_ops netlbl_cipsov4_ops[] = {
 	{
 	.cmd = NLBL_CIPSOV4_C_ADD,
 	.flags = GENL_ADMIN_PERM,
diff --git a/net/netlabel/netlabel_mgmt.c b/net/netlabel/netlabel_mgmt.c
index dd1c37d7acbc..7de6f660b80a 100644
--- a/net/netlabel/netlabel_mgmt.c
+++ b/net/netlabel/netlabel_mgmt.c
@@ -705,7 +705,7 @@ version_failure:
  * NetLabel Generic NETLINK Command Definitions
  */
 
-static struct genl_ops netlbl_mgmt_genl_ops[] = {
+static const struct genl_ops netlbl_mgmt_genl_ops[] = {
 	{
 	.cmd = NLBL_MGMT_C_ADD,
 	.flags = GENL_ADMIN_PERM,
diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c
index 8f0897407a2c..76ee9252daa7 100644
--- a/net/netlabel/netlabel_unlabeled.c
+++ b/net/netlabel/netlabel_unlabeled.c
@@ -1323,7 +1323,7 @@ unlabel_staticlistdef_return:
  * NetLabel Generic NETLINK Command Definitions
  */
 
-static struct genl_ops netlbl_unlabel_genl_ops[] = {
+static const struct genl_ops netlbl_unlabel_genl_ops[] = {
 	{
 	.cmd = NLBL_UNLABEL_C_STATICADD,
 	.flags = GENL_ADMIN_PERM,
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index 84b7e3ea7b7a..f5585611c098 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -1364,7 +1364,7 @@ static int nfc_genl_se_io(struct sk_buff *skb, struct genl_info *info)
 	return dev->ops->se_io(dev, se_idx, apdu, apdu_len, se_io_cb, ctx);
 }
 
-static struct genl_ops nfc_genl_ops[] = {
+static const struct genl_ops nfc_genl_ops[] = {
 	{
 		.cmd = NFC_CMD_GET_DEVICE,
 		.doit = nfc_genl_get_device,
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 1408adc2a2a7..91e1c927a465 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -557,7 +557,7 @@ static const struct nla_policy packet_policy[OVS_PACKET_ATTR_MAX + 1] = {
 	[OVS_PACKET_ATTR_ACTIONS] = { .type = NLA_NESTED },
 };
 
-static struct genl_ops dp_packet_genl_ops[] = {
+static const struct genl_ops dp_packet_genl_ops[] = {
 	{ .cmd = OVS_PACKET_CMD_EXECUTE,
 	  .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
 	  .policy = packet_policy,
@@ -1034,7 +1034,7 @@ static int ovs_flow_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb)
 	return skb->len;
 }
 
-static struct genl_ops dp_flow_genl_ops[] = {
+static const struct genl_ops dp_flow_genl_ops[] = {
 	{ .cmd = OVS_FLOW_CMD_NEW,
 	  .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
 	  .policy = flow_policy,
@@ -1392,7 +1392,7 @@ static int ovs_dp_cmd_dump(struct sk_buff *skb, struct netlink_callback *cb)
 	return skb->len;
 }
 
-static struct genl_ops dp_datapath_genl_ops[] = {
+static const struct genl_ops dp_datapath_genl_ops[] = {
 	{ .cmd = OVS_DP_CMD_NEW,
 	  .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
 	  .policy = datapath_policy,
@@ -1753,7 +1753,7 @@ out:
 	return skb->len;
 }
 
-static struct genl_ops dp_vport_genl_ops[] = {
+static const struct genl_ops dp_vport_genl_ops[] = {
 	{ .cmd = OVS_VPORT_CMD_NEW,
 	  .flags = GENL_ADMIN_PERM, /* Requires CAP_NET_ADMIN privilege. */
 	  .policy = vport_policy,
@@ -1779,7 +1779,7 @@ static struct genl_ops dp_vport_genl_ops[] = {
 
 struct genl_family_and_ops {
 	struct genl_family *family;
-	struct genl_ops *ops;
+	const struct genl_ops *ops;
 	int n_ops;
 	struct genl_multicast_group *group;
 };
diff --git a/net/wimax/stack.c b/net/wimax/stack.c
index 4b7f15a50087..47170c9495f1 100644
--- a/net/wimax/stack.c
+++ b/net/wimax/stack.c
@@ -415,7 +415,7 @@ static const struct nla_policy wimax_gnl_policy[WIMAX_GNL_ATTR_MAX + 1] = {
 	},
 };
 
-static struct genl_ops wimax_gnl_ops[] = {
+static const struct genl_ops wimax_gnl_ops[] = {
 	{
 		.cmd = WIMAX_GNL_OP_MSG_FROM_USER,
 		.flags = GENL_ADMIN_PERM,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 3fef55958e98..58c43c8e149f 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -8937,7 +8937,7 @@ static void nl80211_post_doit(const struct genl_ops *ops, struct sk_buff *skb,
 		rtnl_unlock();
 }
 
-static struct genl_ops nl80211_ops[] = {
+static const struct genl_ops nl80211_ops[] = {
 	{
 		.cmd = NL80211_CMD_GET_WIPHY,
 		.doit = nl80211_get_wiphy,
-- 
cgit 


From 3f5ccd06aecd0eb1651dd451439d5cb365170854 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 14 Nov 2013 17:14:47 +0100
Subject: genetlink: make genl_ops flags a u8 and move to end

To save some space in the struct on 32-bit systems,
make the flags a u8 (only 4 bits are used) and also
move them to the end of the struct.

This has no impact on 64-bit systems as alignment of
the struct in an array uses up the space anyway.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/genetlink.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index d87486aa0611..0b6a144468c6 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -112,15 +112,15 @@ static inline void genl_info_net_set(struct genl_info *info, struct net *net)
  * @ops_list: operations list
  */
 struct genl_ops {
-	u8			cmd;
-	u8			internal_flags;
-	unsigned int		flags;
 	const struct nla_policy	*policy;
 	int		       (*doit)(struct sk_buff *skb,
 				       struct genl_info *info);
 	int		       (*dumpit)(struct sk_buff *skb,
 					 struct netlink_callback *cb);
 	int		       (*done)(struct netlink_callback *cb);
+	u8			cmd;
+	u8			internal_flags;
+	u8			flags;
 };
 
 int __genl_register_family(struct genl_family *family);
-- 
cgit 


From b54629e226d196e802abdd30c5e34f2a47cddcf2 Mon Sep 17 00:00:00 2001
From: hahnjo <hahnjo@hahnjo.de>
Date: Tue, 12 Nov 2013 18:19:24 +0100
Subject: alx: Reset phy speed after resume

This fixes bug 62491 (https://bugzilla.kernel.org/show_bug.cgi?id=62491).
After resuming some users got the following error flooding the kernel log:
alx 0000:02:00.0: invalid PHY speed/duplex: 0xffff

Signed-off-by: Jonas Hahnfeld <linux@hahnjo.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/atheros/alx/main.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/atheros/alx/main.c b/drivers/net/ethernet/atheros/alx/main.c
index 5aa5e8146496..c3c4c266b846 100644
--- a/drivers/net/ethernet/atheros/alx/main.c
+++ b/drivers/net/ethernet/atheros/alx/main.c
@@ -1388,6 +1388,9 @@ static int alx_resume(struct device *dev)
 {
 	struct pci_dev *pdev = to_pci_dev(dev);
 	struct alx_priv *alx = pci_get_drvdata(pdev);
+	struct alx_hw *hw = &alx->hw;
+
+	alx_reset_phy(hw);
 
 	if (!netif_running(alx->dev))
 		return 0;
-- 
cgit 


From 7b1998116bbb2f3e5dd6cb9a8ee6db479b0b50a9 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Mon, 11 Nov 2013 22:41:56 +0100
Subject: ACPI / driver core: Store an ACPI device pointer in struct
 acpi_dev_node

Modify struct acpi_dev_node to contain a pointer to struct acpi_device
associated with the given device object (that is, its ACPI companion
device) instead of an ACPI handle corresponding to it.  Introduce two
new macros for manipulating that pointer in a CONFIG_ACPI-safe way,
ACPI_COMPANION() and ACPI_COMPANION_SET(), and rework the
ACPI_HANDLE() macro to take the above changes into account.
Drop the ACPI_HANDLE_SET() macro entirely and rework its users to
use ACPI_COMPANION_SET() instead.  For some of them who used to
pass the result of acpi_get_child() directly to ACPI_HANDLE_SET()
introduce a helper routine acpi_preset_companion() doing an
equivalent thing.

The main motivation for doing this is that there are things
represented by struct acpi_device objects that don't have valid
ACPI handles (so called fixed ACPI hardware features, such as
power and sleep buttons) and we would like to create platform
device objects for them and "glue" them to their ACPI companions
in the usual way (which currently is impossible due to the
lack of valid ACPI handles).  However, there are more reasons
why it may be useful.

First, struct acpi_device pointers allow of much better type checking
than void pointers which are ACPI handles, so it should be more
difficult to write buggy code using modified struct acpi_dev_node
and the new macros.  Second, the change should help to reduce (over
time) the number of places in which the result of ACPI_HANDLE() is
passed to acpi_bus_get_device() in order to obtain a pointer to the
struct acpi_device associated with the given "physical" device,
because now that pointer is returned by ACPI_COMPANION() directly.
Finally, the change should make it easier to write generic code that
will build both for CONFIG_ACPI set and unset without adding explicit
compiler directives to it.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com> # on Haswell
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Aaron Lu <aaron.lu@intel.com> # for ATA and SDIO part
---
 arch/ia64/hp/common/sba_iommu.c              |  2 +-
 arch/ia64/include/asm/pci.h                  |  2 +-
 arch/ia64/pci/pci.c                          |  6 ++--
 arch/ia64/sn/kernel/io_acpi_init.c           |  4 +--
 arch/x86/include/asm/pci.h                   |  2 +-
 arch/x86/pci/acpi.c                          |  4 +--
 drivers/acpi/acpi_platform.c                 |  2 +-
 drivers/acpi/device_pm.c                     |  6 +---
 drivers/acpi/glue.c                          | 47 ++++++++++++++--------------
 drivers/ata/libata-acpi.c                    |  4 +--
 drivers/base/platform.c                      |  4 +--
 drivers/gpio/gpiolib.c                       |  1 +
 drivers/gpu/drm/radeon/radeon_atpx_handler.c |  3 +-
 drivers/hid/i2c-hid/i2c-hid.c                |  2 +-
 drivers/i2c/i2c-core.c                       |  4 +--
 drivers/ide/ide-acpi.c                       |  3 +-
 drivers/mmc/core/sdio_bus.c                  |  3 +-
 drivers/pci/hotplug/sgi_hotplug.c            |  8 ++---
 drivers/spi/spi.c                            |  2 +-
 include/acpi/acpi_bus.h                      |  2 +-
 include/linux/acpi.h                         | 15 +++++++++
 include/linux/device.h                       | 12 ++-----
 22 files changed, 70 insertions(+), 68 deletions(-)

diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index d43daf192b21..4c530a82fc46 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -1992,7 +1992,7 @@ sba_connect_bus(struct pci_bus *bus)
 	if (PCI_CONTROLLER(bus)->iommu)
 		return;
 
-	handle = PCI_CONTROLLER(bus)->acpi_handle;
+	handle = acpi_device_handle(PCI_CONTROLLER(bus)->companion);
 	if (!handle)
 		return;
 
diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h
index 80775f55f03f..71fbaaa495cc 100644
--- a/arch/ia64/include/asm/pci.h
+++ b/arch/ia64/include/asm/pci.h
@@ -95,7 +95,7 @@ struct iospace_resource {
 };
 
 struct pci_controller {
-	void *acpi_handle;
+	struct acpi_device *companion;
 	void *iommu;
 	int segment;
 	int node;		/* nearest node with memory or -1 for global allocation */
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 2326790b7d8b..9e4938d8ca4d 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -436,9 +436,9 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
 	if (!controller)
 		return NULL;
 
-	controller->acpi_handle = device->handle;
+	controller->companion = device;
 
-	pxm = acpi_get_pxm(controller->acpi_handle);
+	pxm = acpi_get_pxm(device->handle);
 #ifdef CONFIG_NUMA
 	if (pxm >= 0)
 		controller->node = pxm_to_node(pxm);
@@ -489,7 +489,7 @@ int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge)
 {
 	struct pci_controller *controller = bridge->bus->sysdata;
 
-	ACPI_HANDLE_SET(&bridge->dev, controller->acpi_handle);
+	ACPI_COMPANION_SET(&bridge->dev, controller->companion);
 	return 0;
 }
 
diff --git a/arch/ia64/sn/kernel/io_acpi_init.c b/arch/ia64/sn/kernel/io_acpi_init.c
index b1725398b5af..0640739cc20c 100644
--- a/arch/ia64/sn/kernel/io_acpi_init.c
+++ b/arch/ia64/sn/kernel/io_acpi_init.c
@@ -132,7 +132,7 @@ sn_get_bussoft_ptr(struct pci_bus *bus)
 	struct acpi_resource_vendor_typed *vendor;
 
 
-	handle = PCI_CONTROLLER(bus)->acpi_handle;
+	handle = acpi_device_handle(PCI_CONTROLLER(bus)->companion);
 	status = acpi_get_vendor_resource(handle, METHOD_NAME__CRS,
 					  &sn_uuid, &buffer);
 	if (ACPI_FAILURE(status)) {
@@ -360,7 +360,7 @@ sn_acpi_get_pcidev_info(struct pci_dev *dev, struct pcidev_info **pcidev_info,
 	acpi_status status;
 	struct acpi_buffer name_buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 
-	rootbus_handle = PCI_CONTROLLER(dev)->acpi_handle;
+	rootbus_handle = acpi_device_handle(PCI_CONTROLLER(dev)->companion);
         status = acpi_evaluate_integer(rootbus_handle, METHOD_NAME__SEG, NULL,
                                        &segment);
         if (ACPI_SUCCESS(status)) {
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index 7d7443283a9d..947b5c417e83 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -15,7 +15,7 @@ struct pci_sysdata {
 	int		domain;		/* PCI domain */
 	int		node;		/* NUMA node */
 #ifdef CONFIG_ACPI
-	void		*acpi;		/* ACPI-specific data */
+	struct acpi_device *companion;	/* ACPI companion device */
 #endif
 #ifdef CONFIG_X86_64
 	void		*iommu;		/* IOMMU private data */
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 7fb24e53d4c8..4f25ec077552 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -518,7 +518,7 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
 	sd = &info->sd;
 	sd->domain = domain;
 	sd->node = node;
-	sd->acpi = device->handle;
+	sd->companion = device;
 	/*
 	 * Maybe the desired pci bus has been already scanned. In such case
 	 * it is unnecessary to scan the pci bus with the given domain,busnum.
@@ -589,7 +589,7 @@ int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge)
 {
 	struct pci_sysdata *sd = bridge->bus->sysdata;
 
-	ACPI_HANDLE_SET(&bridge->dev, sd->acpi);
+	ACPI_COMPANION_SET(&bridge->dev, sd->companion);
 	return 0;
 }
 
diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 8a4cfc7e71f0..dbfe49e5fd63 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -111,7 +111,7 @@ int acpi_create_platform_device(struct acpi_device *adev,
 	pdevinfo.id = -1;
 	pdevinfo.res = resources;
 	pdevinfo.num_res = count;
-	pdevinfo.acpi_node.handle = adev->handle;
+	pdevinfo.acpi_node.companion = adev;
 	pdev = platform_device_register_full(&pdevinfo);
 	if (IS_ERR(pdev)) {
 		dev_err(&adev->dev, "platform device creation failed: %ld\n",
diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index d42b2fb5a7e9..119afda0968c 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -22,16 +22,12 @@
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  */
 
-#include <linux/device.h>
+#include <linux/acpi.h>
 #include <linux/export.h>
 #include <linux/mutex.h>
 #include <linux/pm_qos.h>
 #include <linux/pm_runtime.h>
 
-#include <acpi/acpi.h>
-#include <acpi/acpi_bus.h>
-#include <acpi/acpi_drivers.h>
-
 #include "internal.h"
 
 #define _COMPONENT	ACPI_POWER_COMPONENT
diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 10f0f40587bb..782071fd3df3 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -197,30 +197,27 @@ static void acpi_physnode_link_name(char *buf, unsigned int node_id)
 
 int acpi_bind_one(struct device *dev, acpi_handle handle)
 {
-	struct acpi_device *acpi_dev;
-	acpi_status status;
+	struct acpi_device *acpi_dev = NULL;
 	struct acpi_device_physical_node *physical_node, *pn;
 	char physical_node_name[PHYSICAL_NODE_NAME_SIZE];
 	struct list_head *physnode_list;
 	unsigned int node_id;
 	int retval = -EINVAL;
 
-	if (ACPI_HANDLE(dev)) {
+	if (ACPI_COMPANION(dev)) {
 		if (handle) {
-			dev_warn(dev, "ACPI handle is already set\n");
+			dev_warn(dev, "ACPI companion already set\n");
 			return -EINVAL;
 		} else {
-			handle = ACPI_HANDLE(dev);
+			acpi_dev = ACPI_COMPANION(dev);
 		}
+	} else {
+		acpi_bus_get_device(handle, &acpi_dev);
 	}
-	if (!handle)
+	if (!acpi_dev)
 		return -EINVAL;
 
 	get_device(dev);
-	status = acpi_bus_get_device(handle, &acpi_dev);
-	if (ACPI_FAILURE(status))
-		goto err;
-
 	physical_node = kzalloc(sizeof(*physical_node), GFP_KERNEL);
 	if (!physical_node) {
 		retval = -ENOMEM;
@@ -242,7 +239,7 @@ int acpi_bind_one(struct device *dev, acpi_handle handle)
 
 			dev_warn(dev, "Already associated with ACPI node\n");
 			kfree(physical_node);
-			if (ACPI_HANDLE(dev) != handle)
+			if (ACPI_COMPANION(dev) != acpi_dev)
 				goto err;
 
 			put_device(dev);
@@ -259,8 +256,8 @@ int acpi_bind_one(struct device *dev, acpi_handle handle)
 	list_add(&physical_node->node, physnode_list);
 	acpi_dev->physical_node_count++;
 
-	if (!ACPI_HANDLE(dev))
-		ACPI_HANDLE_SET(dev, acpi_dev->handle);
+	if (!ACPI_COMPANION(dev))
+		ACPI_COMPANION_SET(dev, acpi_dev);
 
 	acpi_physnode_link_name(physical_node_name, node_id);
 	retval = sysfs_create_link(&acpi_dev->dev.kobj, &dev->kobj,
@@ -283,7 +280,7 @@ int acpi_bind_one(struct device *dev, acpi_handle handle)
 	return 0;
 
  err:
-	ACPI_HANDLE_SET(dev, NULL);
+	ACPI_COMPANION_SET(dev, NULL);
 	put_device(dev);
 	return retval;
 }
@@ -291,19 +288,12 @@ EXPORT_SYMBOL_GPL(acpi_bind_one);
 
 int acpi_unbind_one(struct device *dev)
 {
+	struct acpi_device *acpi_dev = ACPI_COMPANION(dev);
 	struct acpi_device_physical_node *entry;
-	struct acpi_device *acpi_dev;
-	acpi_status status;
 
-	if (!ACPI_HANDLE(dev))
+	if (!acpi_dev)
 		return 0;
 
-	status = acpi_bus_get_device(ACPI_HANDLE(dev), &acpi_dev);
-	if (ACPI_FAILURE(status)) {
-		dev_err(dev, "Oops, ACPI handle corrupt in %s()\n", __func__);
-		return -EINVAL;
-	}
-
 	mutex_lock(&acpi_dev->physical_node_lock);
 
 	list_for_each_entry(entry, &acpi_dev->physical_node_list, node)
@@ -316,7 +306,7 @@ int acpi_unbind_one(struct device *dev)
 			acpi_physnode_link_name(physnode_name, entry->node_id);
 			sysfs_remove_link(&acpi_dev->dev.kobj, physnode_name);
 			sysfs_remove_link(&dev->kobj, "firmware_node");
-			ACPI_HANDLE_SET(dev, NULL);
+			ACPI_COMPANION_SET(dev, NULL);
 			/* acpi_bind_one() increase refcnt by one. */
 			put_device(dev);
 			kfree(entry);
@@ -328,6 +318,15 @@ int acpi_unbind_one(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(acpi_unbind_one);
 
+void acpi_preset_companion(struct device *dev, acpi_handle parent, u64 addr)
+{
+	struct acpi_device *adev;
+
+	if (!acpi_bus_get_device(acpi_get_child(parent, addr), &adev))
+		ACPI_COMPANION_SET(dev, adev);
+}
+EXPORT_SYMBOL_GPL(acpi_preset_companion);
+
 static int acpi_platform_notify(struct device *dev)
 {
 	struct acpi_bus_type *type = acpi_get_bus_type(dev);
diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c
index ab714d2ad978..4372cfa883c9 100644
--- a/drivers/ata/libata-acpi.c
+++ b/drivers/ata/libata-acpi.c
@@ -185,7 +185,7 @@ void ata_acpi_bind_port(struct ata_port *ap)
 	if (libata_noacpi || ap->flags & ATA_FLAG_ACPI_SATA || !host_handle)
 		return;
 
-	ACPI_HANDLE_SET(&ap->tdev, acpi_get_child(host_handle, ap->port_no));
+	acpi_preset_companion(&ap->tdev, host_handle, ap->port_no);
 
 	if (ata_acpi_gtm(ap, &ap->__acpi_init_gtm) == 0)
 		ap->pflags |= ATA_PFLAG_INIT_GTM_VALID;
@@ -222,7 +222,7 @@ void ata_acpi_bind_dev(struct ata_device *dev)
 		parent_handle = port_handle;
 	}
 
-	ACPI_HANDLE_SET(&dev->tdev, acpi_get_child(parent_handle, adr));
+	acpi_preset_companion(&dev->tdev, parent_handle, adr);
 
 	register_hotplug_dock_device(ata_dev_acpi_handle(dev),
 				     &ata_acpi_dev_dock_ops, dev, NULL, NULL);
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 47051cd25113..3a94b799f166 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -432,7 +432,7 @@ struct platform_device *platform_device_register_full(
 		goto err_alloc;
 
 	pdev->dev.parent = pdevinfo->parent;
-	ACPI_HANDLE_SET(&pdev->dev, pdevinfo->acpi_node.handle);
+	ACPI_COMPANION_SET(&pdev->dev, pdevinfo->acpi_node.companion);
 
 	if (pdevinfo->dma_mask) {
 		/*
@@ -463,7 +463,7 @@ struct platform_device *platform_device_register_full(
 	ret = platform_device_add(pdev);
 	if (ret) {
 err:
-		ACPI_HANDLE_SET(&pdev->dev, NULL);
+		ACPI_COMPANION_SET(&pdev->dev, NULL);
 		kfree(pdev->dev.dma_mask);
 
 err_alloc:
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 7dd446150294..4e10b10d3ddd 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -13,6 +13,7 @@
 #include <linux/acpi_gpio.h>
 #include <linux/idr.h>
 #include <linux/slab.h>
+#include <linux/acpi.h>
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/gpio.h>
diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
index d96070bf8388..27a6e9dbd0c4 100644
--- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c
+++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
@@ -8,8 +8,7 @@
  */
 #include <linux/vga_switcheroo.h>
 #include <linux/slab.h>
-#include <acpi/acpi.h>
-#include <acpi/acpi_bus.h>
+#include <linux/acpi.h>
 #include <linux/pci.h>
 
 #include "radeon_acpi.h"
diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c
index fd7ce374f812..b7ecc3623a43 100644
--- a/drivers/hid/i2c-hid/i2c-hid.c
+++ b/drivers/hid/i2c-hid/i2c-hid.c
@@ -1012,7 +1012,7 @@ static int i2c_hid_probe(struct i2c_client *client,
 	hid->hid_get_raw_report = i2c_hid_get_raw_report;
 	hid->hid_output_raw_report = i2c_hid_output_raw_report;
 	hid->dev.parent = &client->dev;
-	ACPI_HANDLE_SET(&hid->dev, ACPI_HANDLE(&client->dev));
+	ACPI_COMPANION_SET(&hid->dev, ACPI_COMPANION(&client->dev));
 	hid->bus = BUS_I2C;
 	hid->version = le16_to_cpu(ihid->hdesc.bcdVersion);
 	hid->vendor = le16_to_cpu(ihid->hdesc.wVendorID);
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 75ba8608383e..f74af33f5ddc 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -674,7 +674,7 @@ i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info)
 	client->dev.bus = &i2c_bus_type;
 	client->dev.type = &i2c_client_type;
 	client->dev.of_node = info->of_node;
-	ACPI_HANDLE_SET(&client->dev, info->acpi_node.handle);
+	ACPI_COMPANION_SET(&client->dev, info->acpi_node.companion);
 
 	/* For 10-bit clients, add an arbitrary offset to avoid collisions */
 	dev_set_name(&client->dev, "%d-%04x", i2c_adapter_id(adap),
@@ -1103,7 +1103,7 @@ static acpi_status acpi_i2c_add_device(acpi_handle handle, u32 level,
 		return AE_OK;
 
 	memset(&info, 0, sizeof(info));
-	info.acpi_node.handle = handle;
+	info.acpi_node.companion = adev;
 	info.irq = -1;
 
 	INIT_LIST_HEAD(&resource_list);
diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
index 140c8ef50529..3662c4c536d6 100644
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c
@@ -7,6 +7,7 @@
  * Copyright (C) 2006 Hannes Reinecke
  */
 
+#include <linux/acpi.h>
 #include <linux/ata.h>
 #include <linux/delay.h>
 #include <linux/device.h>
@@ -19,8 +20,6 @@
 #include <linux/dmi.h>
 #include <linux/module.h>
 
-#include <acpi/acpi_bus.h>
-
 #define REGS_PER_GTF		7
 
 struct GTM_buffer {
diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c
index ef8956568c3a..157b570ba343 100644
--- a/drivers/mmc/core/sdio_bus.c
+++ b/drivers/mmc/core/sdio_bus.c
@@ -308,8 +308,7 @@ static void sdio_acpi_set_handle(struct sdio_func *func)
 	struct mmc_host *host = func->card->host;
 	u64 addr = (host->slotno << 16) | func->num;
 
-	ACPI_HANDLE_SET(&func->dev,
-			acpi_get_child(ACPI_HANDLE(host->parent), addr));
+	acpi_preset_companion(&func->dev, ACPI_HANDLE(host->parent), addr);
 }
 #else
 static inline void sdio_acpi_set_handle(struct sdio_func *func) {}
diff --git a/drivers/pci/hotplug/sgi_hotplug.c b/drivers/pci/hotplug/sgi_hotplug.c
index b2781dfe60e9..5b05a68cca6c 100644
--- a/drivers/pci/hotplug/sgi_hotplug.c
+++ b/drivers/pci/hotplug/sgi_hotplug.c
@@ -9,6 +9,7 @@
  * Work to add BIOS PROM support was completed by Mike Habeck.
  */
 
+#include <linux/acpi.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
@@ -29,7 +30,6 @@
 #include <asm/sn/sn_feature_sets.h>
 #include <asm/sn/sn_sal.h>
 #include <asm/sn/types.h>
-#include <linux/acpi.h>
 #include <asm/sn/acpi.h>
 
 #include "../pci.h"
@@ -414,7 +414,7 @@ static int enable_slot(struct hotplug_slot *bss_hotplug_slot)
 		acpi_handle rethandle;
 		acpi_status ret;
 
-		phandle = PCI_CONTROLLER(slot->pci_bus)->acpi_handle;
+		phandle = acpi_device_handle(PCI_CONTROLLER(slot->pci_bus)->companion);
 
 		if (acpi_bus_get_device(phandle, &pdevice)) {
 			dev_dbg(&slot->pci_bus->self->dev,
@@ -495,7 +495,7 @@ static int disable_slot(struct hotplug_slot *bss_hotplug_slot)
 
 	/* free the ACPI resources for the slot */
 	if (SN_ACPI_BASE_SUPPORT() &&
-            PCI_CONTROLLER(slot->pci_bus)->acpi_handle) {
+            PCI_CONTROLLER(slot->pci_bus)->companion) {
 		unsigned long long adr;
 		struct acpi_device *device;
 		acpi_handle phandle;
@@ -504,7 +504,7 @@ static int disable_slot(struct hotplug_slot *bss_hotplug_slot)
 		acpi_status ret;
 
 		/* Get the rootbus node pointer */
-		phandle = PCI_CONTROLLER(slot->pci_bus)->acpi_handle;
+		phandle = acpi_device_handle(PCI_CONTROLLER(slot->pci_bus)->companion);
 
 		acpi_scan_lock_acquire();
 		/*
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 927998aa5e71..a968d8549ee5 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1144,7 +1144,7 @@ static acpi_status acpi_spi_add_device(acpi_handle handle, u32 level,
 		return AE_NO_MEMORY;
 	}
 
-	ACPI_HANDLE_SET(&spi->dev, handle);
+	ACPI_COMPANION_SET(&spi->dev, adev);
 	spi->irq = -1;
 
 	INIT_LIST_HEAD(&resource_list);
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 89c60b0f6408..7b2de026a4f3 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -431,9 +431,9 @@ static inline acpi_handle acpi_get_child(acpi_handle handle, u64 addr)
 {
 	return acpi_find_child(handle, addr, false);
 }
+void acpi_preset_companion(struct device *dev, acpi_handle parent, u64 addr);
 int acpi_is_root_bridge(acpi_handle);
 struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle);
-#define DEVICE_ACPI_HANDLE(dev) ((acpi_handle)ACPI_HANDLE(dev))
 
 int acpi_enable_wakeup_device_power(struct acpi_device *dev, int state);
 int acpi_disable_wakeup_device_power(struct acpi_device *dev);
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index b0972c4ce81c..47369aadb1d1 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -44,6 +44,15 @@
 #include <acpi/acpi_numa.h>
 #include <asm/acpi.h>
 
+static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
+{
+	return adev ? adev->handle : NULL;
+}
+
+#define ACPI_COMPANION(dev)		((dev)->acpi_node.companion)
+#define ACPI_COMPANION_SET(dev, adev)	ACPI_COMPANION(dev) = (adev)
+#define ACPI_HANDLE(dev)		acpi_device_handle(ACPI_COMPANION(dev))
+
 enum acpi_irq_model_id {
 	ACPI_IRQ_MODEL_PIC = 0,
 	ACPI_IRQ_MODEL_IOAPIC,
@@ -401,6 +410,10 @@ static inline bool acpi_driver_match_device(struct device *dev,
 
 #define acpi_disabled 1
 
+#define ACPI_COMPANION(dev)		(NULL)
+#define ACPI_COMPANION_SET(dev, adev)	do { } while (0)
+#define ACPI_HANDLE(dev)		(NULL)
+
 static inline void acpi_early_init(void) { }
 
 static inline int early_acpi_boot_init(void)
@@ -469,6 +482,8 @@ static inline bool acpi_driver_match_device(struct device *dev,
 
 #endif	/* !CONFIG_ACPI */
 
+#define DEVICE_ACPI_HANDLE(dev)	ACPI_HANDLE(dev)
+
 #ifdef CONFIG_ACPI
 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
 			       u32 pm1a_ctrl,  u32 pm1b_ctrl));
diff --git a/include/linux/device.h b/include/linux/device.h
index b025925df7f7..952b01033c32 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -644,9 +644,11 @@ struct device_dma_parameters {
 	unsigned long segment_boundary_mask;
 };
 
+struct acpi_device;
+
 struct acpi_dev_node {
 #ifdef CONFIG_ACPI
-	void	*handle;
+	struct acpi_device *companion;
 #endif
 };
 
@@ -790,14 +792,6 @@ static inline struct device *kobj_to_dev(struct kobject *kobj)
 	return container_of(kobj, struct device, kobj);
 }
 
-#ifdef CONFIG_ACPI
-#define ACPI_HANDLE(dev)	((dev)->acpi_node.handle)
-#define ACPI_HANDLE_SET(dev, _handle_)	(dev)->acpi_node.handle = (_handle_)
-#else
-#define ACPI_HANDLE(dev)	(NULL)
-#define ACPI_HANDLE_SET(dev, _handle_)	do { } while (0)
-#endif
-
 /* Get the wakeup routines, which depend on struct device */
 #include <linux/pm_wakeup.h>
 
-- 
cgit 


From 2abc2f070eb30ac8421554a5c32229f8332c6206 Mon Sep 17 00:00:00 2001
From: Maciej Żenczykowski <maze@google.com>
Date: Thu, 14 Nov 2013 08:50:43 -0800
Subject: pkt_sched: fq: change classification of control packets
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Initial sch_fq implementation copied code from pfifo_fast to classify
a packet as a high prio packet.

This clashes with setups using PRIO with say 7 bands, as one of the
band could be incorrectly (mis)classified by FQ.

Packets would be queued in the 'internal' queue, and no pacing ever
happen for this special queue.

Fixes: afe4fd062416 ("pkt_sched: fq: Fair Queue packet scheduler")
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Stephen Hemminger <stephen@networkplumber.org>
Cc: Willem de Bruijn <willemb@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sched/sch_fq.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/net/sched/sch_fq.c b/net/sched/sch_fq.c
index fdc041c57853..d4fa38e4af80 100644
--- a/net/sched/sch_fq.c
+++ b/net/sched/sch_fq.c
@@ -209,21 +209,15 @@ static void fq_gc(struct fq_sched_data *q,
 	}
 }
 
-static const u8 prio2band[TC_PRIO_MAX + 1] = {
-	1, 2, 2, 2, 1, 2, 0, 0 , 1, 1, 1, 1, 1, 1, 1, 1
-};
-
 static struct fq_flow *fq_classify(struct sk_buff *skb, struct fq_sched_data *q)
 {
 	struct rb_node **p, *parent;
 	struct sock *sk = skb->sk;
 	struct rb_root *root;
 	struct fq_flow *f;
-	int band;
 
 	/* warning: no starvation prevention... */
-	band = prio2band[skb->priority & TC_PRIO_MAX];
-	if (unlikely(band == 0))
+	if (unlikely((skb->priority & TC_PRIO_MAX) == TC_PRIO_CONTROL))
 		return &q->internal;
 
 	if (unlikely(!sk)) {
-- 
cgit 


From 3a83f992490f8235661b768e53bd5f14915420ac Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 14 Nov 2013 23:17:21 +0100
Subject: ACPI: Eliminate the DEVICE_ACPI_HANDLE() macro

Since DEVICE_ACPI_HANDLE() is now literally identical to
ACPI_HANDLE(), replace it with the latter everywhere and drop its
definition from include/acpi.h.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/acpi/device_pm.c                       |  8 ++++----
 drivers/gpu/drm/i915/intel_acpi.c              |  2 +-
 drivers/gpu/drm/i915/intel_opregion.c          |  2 +-
 drivers/gpu/drm/nouveau/core/subdev/mxm/base.c |  2 +-
 drivers/gpu/drm/nouveau/nouveau_acpi.c         |  6 +++---
 drivers/gpu/drm/radeon/radeon_acpi.c           |  8 ++++----
 drivers/gpu/drm/radeon/radeon_atpx_handler.c   |  4 ++--
 drivers/gpu/drm/radeon/radeon_bios.c           |  2 +-
 drivers/ide/ide-acpi.c                         |  2 +-
 drivers/pci/hotplug/acpi_pcihp.c               |  2 +-
 drivers/pci/hotplug/pciehp_acpi.c              |  4 ++--
 drivers/pci/ioapic.c                           |  2 +-
 drivers/pci/pci-acpi.c                         |  6 +++---
 drivers/pci/pci-label.c                        |  6 +++---
 drivers/platform/x86/apple-gmux.c              |  2 +-
 drivers/pnp/pnpacpi/core.c                     | 10 +++++-----
 drivers/usb/core/hub.c                         |  2 +-
 drivers/usb/core/usb-acpi.c                    |  4 ++--
 drivers/xen/pci.c                              |  6 +++---
 include/linux/acpi.h                           |  2 --
 include/linux/pci-acpi.h                       |  4 ++--
 21 files changed, 42 insertions(+), 44 deletions(-)

diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c
index 119afda0968c..b3480cf7db1a 100644
--- a/drivers/acpi/device_pm.c
+++ b/drivers/acpi/device_pm.c
@@ -544,7 +544,7 @@ static int acpi_dev_pm_get_state(struct device *dev, struct acpi_device *adev,
  */
 int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p, int d_max_in)
 {
-	acpi_handle handle = DEVICE_ACPI_HANDLE(dev);
+	acpi_handle handle = ACPI_HANDLE(dev);
 	struct acpi_device *adev;
 	int ret, d_min, d_max;
 
@@ -652,7 +652,7 @@ int acpi_pm_device_run_wake(struct device *phys_dev, bool enable)
 	if (!device_run_wake(phys_dev))
 		return -EINVAL;
 
-	handle = DEVICE_ACPI_HANDLE(phys_dev);
+	handle = ACPI_HANDLE(phys_dev);
 	if (!handle || acpi_bus_get_device(handle, &adev)) {
 		dev_dbg(phys_dev, "ACPI handle without context in %s!\n",
 			__func__);
@@ -696,7 +696,7 @@ int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
 	if (!device_can_wakeup(dev))
 		return -EINVAL;
 
-	handle = DEVICE_ACPI_HANDLE(dev);
+	handle = ACPI_HANDLE(dev);
 	if (!handle || acpi_bus_get_device(handle, &adev)) {
 		dev_dbg(dev, "ACPI handle without context in %s!\n", __func__);
 		return -ENODEV;
@@ -718,7 +718,7 @@ int acpi_pm_device_sleep_wake(struct device *dev, bool enable)
  */
 struct acpi_device *acpi_dev_pm_get_node(struct device *dev)
 {
-	acpi_handle handle = DEVICE_ACPI_HANDLE(dev);
+	acpi_handle handle = ACPI_HANDLE(dev);
 	struct acpi_device *adev;
 
 	return handle && !acpi_bus_get_device(handle, &adev) ? adev : NULL;
diff --git a/drivers/gpu/drm/i915/intel_acpi.c b/drivers/gpu/drm/i915/intel_acpi.c
index 43959edd4291..dfff0907f70e 100644
--- a/drivers/gpu/drm/i915/intel_acpi.c
+++ b/drivers/gpu/drm/i915/intel_acpi.c
@@ -196,7 +196,7 @@ static bool intel_dsm_pci_probe(struct pci_dev *pdev)
 	acpi_handle dhandle;
 	int ret;
 
-	dhandle = DEVICE_ACPI_HANDLE(&pdev->dev);
+	dhandle = ACPI_HANDLE(&pdev->dev);
 	if (!dhandle)
 		return false;
 
diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c
index 119771ff46ab..8a94b8e15b27 100644
--- a/drivers/gpu/drm/i915/intel_opregion.c
+++ b/drivers/gpu/drm/i915/intel_opregion.c
@@ -289,7 +289,7 @@ static void intel_didl_outputs(struct drm_device *dev)
 	u32 temp;
 	int i = 0;
 
-	handle = DEVICE_ACPI_HANDLE(&dev->pdev->dev);
+	handle = ACPI_HANDLE(&dev->pdev->dev);
 	if (!handle || acpi_bus_get_device(handle, &acpi_dev))
 		return;
 
diff --git a/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c b/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c
index e286e132c7e7..129120473f6c 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c
@@ -116,7 +116,7 @@ mxm_shadow_dsm(struct nouveau_mxm *mxm, u8 version)
 	acpi_handle handle;
 	int ret;
 
-	handle = DEVICE_ACPI_HANDLE(&device->pdev->dev);
+	handle = ACPI_HANDLE(&device->pdev->dev);
 	if (!handle)
 		return false;
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c
index cfbeee607b3a..d9eb65dae1f7 100644
--- a/drivers/gpu/drm/nouveau/nouveau_acpi.c
+++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c
@@ -256,7 +256,7 @@ static int nouveau_dsm_pci_probe(struct pci_dev *pdev)
 	acpi_handle dhandle;
 	int retval = 0;
 
-	dhandle = DEVICE_ACPI_HANDLE(&pdev->dev);
+	dhandle = ACPI_HANDLE(&pdev->dev);
 	if (!dhandle)
 		return false;
 
@@ -404,7 +404,7 @@ bool nouveau_acpi_rom_supported(struct pci_dev *pdev)
 	if (!nouveau_dsm_priv.dsm_detected && !nouveau_dsm_priv.optimus_detected)
 		return false;
 
-	dhandle = DEVICE_ACPI_HANDLE(&pdev->dev);
+	dhandle = ACPI_HANDLE(&pdev->dev);
 	if (!dhandle)
 		return false;
 
@@ -438,7 +438,7 @@ nouveau_acpi_edid(struct drm_device *dev, struct drm_connector *connector)
 		return NULL;
 	}
 
-	handle = DEVICE_ACPI_HANDLE(&dev->pdev->dev);
+	handle = ACPI_HANDLE(&dev->pdev->dev);
 	if (!handle)
 		return NULL;
 
diff --git a/drivers/gpu/drm/radeon/radeon_acpi.c b/drivers/gpu/drm/radeon/radeon_acpi.c
index 10f98c7742d8..98a9074b306b 100644
--- a/drivers/gpu/drm/radeon/radeon_acpi.c
+++ b/drivers/gpu/drm/radeon/radeon_acpi.c
@@ -369,7 +369,7 @@ int radeon_atif_handler(struct radeon_device *rdev,
 		return NOTIFY_DONE;
 
 	/* Check pending SBIOS requests */
-	handle = DEVICE_ACPI_HANDLE(&rdev->pdev->dev);
+	handle = ACPI_HANDLE(&rdev->pdev->dev);
 	count = radeon_atif_get_sbios_requests(handle, &req);
 
 	if (count <= 0)
@@ -556,7 +556,7 @@ int radeon_acpi_pcie_notify_device_ready(struct radeon_device *rdev)
 	struct radeon_atcs *atcs = &rdev->atcs;
 
 	/* Get the device handle */
-	handle = DEVICE_ACPI_HANDLE(&rdev->pdev->dev);
+	handle = ACPI_HANDLE(&rdev->pdev->dev);
 	if (!handle)
 		return -EINVAL;
 
@@ -596,7 +596,7 @@ int radeon_acpi_pcie_performance_request(struct radeon_device *rdev,
 	u32 retry = 3;
 
 	/* Get the device handle */
-	handle = DEVICE_ACPI_HANDLE(&rdev->pdev->dev);
+	handle = ACPI_HANDLE(&rdev->pdev->dev);
 	if (!handle)
 		return -EINVAL;
 
@@ -699,7 +699,7 @@ int radeon_acpi_init(struct radeon_device *rdev)
 	int ret;
 
 	/* Get the device handle */
-	handle = DEVICE_ACPI_HANDLE(&rdev->pdev->dev);
+	handle = ACPI_HANDLE(&rdev->pdev->dev);
 
 	/* No need to proceed if we're sure that ATIF is not supported */
 	if (!ASIC_IS_AVIVO(rdev) || !rdev->bios || !handle)
diff --git a/drivers/gpu/drm/radeon/radeon_atpx_handler.c b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
index 27a6e9dbd0c4..933bd946057b 100644
--- a/drivers/gpu/drm/radeon/radeon_atpx_handler.c
+++ b/drivers/gpu/drm/radeon/radeon_atpx_handler.c
@@ -442,7 +442,7 @@ static bool radeon_atpx_pci_probe_handle(struct pci_dev *pdev)
 	acpi_handle dhandle, atpx_handle;
 	acpi_status status;
 
-	dhandle = DEVICE_ACPI_HANDLE(&pdev->dev);
+	dhandle = ACPI_HANDLE(&pdev->dev);
 	if (!dhandle)
 		return false;
 
@@ -488,7 +488,7 @@ static int radeon_atpx_init(void)
  */
 static int radeon_atpx_get_client_id(struct pci_dev *pdev)
 {
-	if (radeon_atpx_priv.dhandle == DEVICE_ACPI_HANDLE(&pdev->dev))
+	if (radeon_atpx_priv.dhandle == ACPI_HANDLE(&pdev->dev))
 		return VGA_SWITCHEROO_IGD;
 	else
 		return VGA_SWITCHEROO_DIS;
diff --git a/drivers/gpu/drm/radeon/radeon_bios.c b/drivers/gpu/drm/radeon/radeon_bios.c
index 061b227dae0c..374eaba78a69 100644
--- a/drivers/gpu/drm/radeon/radeon_bios.c
+++ b/drivers/gpu/drm/radeon/radeon_bios.c
@@ -185,7 +185,7 @@ static bool radeon_atrm_get_bios(struct radeon_device *rdev)
 		return false;
 
 	while ((pdev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, pdev)) != NULL) {
-		dhandle = DEVICE_ACPI_HANDLE(&pdev->dev);
+		dhandle = ACPI_HANDLE(&pdev->dev);
 		if (!dhandle)
 			continue;
 
diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c
index 3662c4c536d6..d9e1f7ccfe6f 100644
--- a/drivers/ide/ide-acpi.c
+++ b/drivers/ide/ide-acpi.c
@@ -127,7 +127,7 @@ static int ide_get_dev_handle(struct device *dev, acpi_handle *handle,
 
 	DEBPRINT("ENTER: pci %02x:%02x.%01x\n", bus, devnum, func);
 
-	dev_handle = DEVICE_ACPI_HANDLE(dev);
+	dev_handle = ACPI_HANDLE(dev);
 	if (!dev_handle) {
 		DEBPRINT("no acpi handle for device\n");
 		goto err;
diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c
index 1ce8ee054f1a..a94d850ae228 100644
--- a/drivers/pci/hotplug/acpi_pcihp.c
+++ b/drivers/pci/hotplug/acpi_pcihp.c
@@ -367,7 +367,7 @@ int acpi_get_hp_hw_control_from_firmware(struct pci_dev *pdev, u32 flags)
 		string = (struct acpi_buffer){ ACPI_ALLOCATE_BUFFER, NULL };
 	}
 
-	handle = DEVICE_ACPI_HANDLE(&pdev->dev);
+	handle = ACPI_HANDLE(&pdev->dev);
 	if (!handle) {
 		/*
 		 * This hotplug controller was not listed in the ACPI name
diff --git a/drivers/pci/hotplug/pciehp_acpi.c b/drivers/pci/hotplug/pciehp_acpi.c
index ead7c534095e..cff7cadfc2e4 100644
--- a/drivers/pci/hotplug/pciehp_acpi.c
+++ b/drivers/pci/hotplug/pciehp_acpi.c
@@ -54,7 +54,7 @@ int pciehp_acpi_slot_detection_check(struct pci_dev *dev)
 {
 	if (slot_detection_mode != PCIEHP_DETECT_ACPI)
 		return 0;
-	if (acpi_pci_detect_ejectable(DEVICE_ACPI_HANDLE(&dev->dev)))
+	if (acpi_pci_detect_ejectable(ACPI_HANDLE(&dev->dev)))
 		return 0;
 	return -ENODEV;
 }
@@ -96,7 +96,7 @@ static int __init dummy_probe(struct pcie_device *dev)
 			dup_slot_id++;
 	}
 	list_add_tail(&slot->list, &dummy_slots);
-	handle = DEVICE_ACPI_HANDLE(&pdev->dev);
+	handle = ACPI_HANDLE(&pdev->dev);
 	if (!acpi_slot_detected && acpi_pci_detect_ejectable(handle))
 		acpi_slot_detected = 1;
 	return -ENODEV;         /* dummy driver always returns error */
diff --git a/drivers/pci/ioapic.c b/drivers/pci/ioapic.c
index 1b90579b233a..50ce68098298 100644
--- a/drivers/pci/ioapic.c
+++ b/drivers/pci/ioapic.c
@@ -37,7 +37,7 @@ static int ioapic_probe(struct pci_dev *dev, const struct pci_device_id *ent)
 	char *type;
 	struct resource *res;
 
-	handle = DEVICE_ACPI_HANDLE(&dev->dev);
+	handle = ACPI_HANDLE(&dev->dev);
 	if (!handle)
 		return -EINVAL;
 
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index dfd1f59de729..f166126e28d1 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -173,14 +173,14 @@ static pci_power_t acpi_pci_choose_state(struct pci_dev *pdev)
 
 static bool acpi_pci_power_manageable(struct pci_dev *dev)
 {
-	acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev);
+	acpi_handle handle = ACPI_HANDLE(&dev->dev);
 
 	return handle ? acpi_bus_power_manageable(handle) : false;
 }
 
 static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
 {
-	acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev);
+	acpi_handle handle = ACPI_HANDLE(&dev->dev);
 	static const u8 state_conv[] = {
 		[PCI_D0] = ACPI_STATE_D0,
 		[PCI_D1] = ACPI_STATE_D1,
@@ -217,7 +217,7 @@ static int acpi_pci_set_power_state(struct pci_dev *dev, pci_power_t state)
 
 static bool acpi_pci_can_wakeup(struct pci_dev *dev)
 {
-	acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev);
+	acpi_handle handle = ACPI_HANDLE(&dev->dev);
 
 	return handle ? acpi_bus_can_wakeup(handle) : false;
 }
diff --git a/drivers/pci/pci-label.c b/drivers/pci/pci-label.c
index edaed6f4da6c..d51f45aa669e 100644
--- a/drivers/pci/pci-label.c
+++ b/drivers/pci/pci-label.c
@@ -263,7 +263,7 @@ device_has_dsm(struct device *dev)
 	acpi_handle handle;
 	struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL};
 
-	handle = DEVICE_ACPI_HANDLE(dev);
+	handle = ACPI_HANDLE(dev);
 
 	if (!handle)
 		return FALSE;
@@ -295,7 +295,7 @@ acpilabel_show(struct device *dev, struct device_attribute *attr, char *buf)
 	acpi_handle handle;
 	int length;
 
-	handle = DEVICE_ACPI_HANDLE(dev);
+	handle = ACPI_HANDLE(dev);
 
 	if (!handle)
 		return -1;
@@ -316,7 +316,7 @@ acpiindex_show(struct device *dev, struct device_attribute *attr, char *buf)
 	acpi_handle handle;
 	int length;
 
-	handle = DEVICE_ACPI_HANDLE(dev);
+	handle = ACPI_HANDLE(dev);
 
 	if (!handle)
 		return -1;
diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c
index 8eea2efbbb6d..5753c82335ad 100644
--- a/drivers/platform/x86/apple-gmux.c
+++ b/drivers/platform/x86/apple-gmux.c
@@ -519,7 +519,7 @@ static int gmux_probe(struct pnp_dev *pnp, const struct pnp_device_id *id)
 
 	gmux_data->power_state = VGA_SWITCHEROO_ON;
 
-	gmux_data->dhandle = DEVICE_ACPI_HANDLE(&pnp->dev);
+	gmux_data->dhandle = ACPI_HANDLE(&pnp->dev);
 	if (!gmux_data->dhandle) {
 		pr_err("Cannot find acpi handle for pnp device %s\n",
 		       dev_name(&pnp->dev));
diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c
index 747826d99059..14655a0f0431 100644
--- a/drivers/pnp/pnpacpi/core.c
+++ b/drivers/pnp/pnpacpi/core.c
@@ -89,7 +89,7 @@ static int pnpacpi_set_resources(struct pnp_dev *dev)
 
 	pnp_dbg(&dev->dev, "set resources\n");
 
-	handle = DEVICE_ACPI_HANDLE(&dev->dev);
+	handle = ACPI_HANDLE(&dev->dev);
 	if (!handle || acpi_bus_get_device(handle, &acpi_dev)) {
 		dev_dbg(&dev->dev, "ACPI device not found in %s!\n", __func__);
 		return -ENODEV;
@@ -122,7 +122,7 @@ static int pnpacpi_disable_resources(struct pnp_dev *dev)
 
 	dev_dbg(&dev->dev, "disable resources\n");
 
-	handle = DEVICE_ACPI_HANDLE(&dev->dev);
+	handle = ACPI_HANDLE(&dev->dev);
 	if (!handle || acpi_bus_get_device(handle, &acpi_dev)) {
 		dev_dbg(&dev->dev, "ACPI device not found in %s!\n", __func__);
 		return 0;
@@ -144,7 +144,7 @@ static bool pnpacpi_can_wakeup(struct pnp_dev *dev)
 	struct acpi_device *acpi_dev;
 	acpi_handle handle;
 
-	handle = DEVICE_ACPI_HANDLE(&dev->dev);
+	handle = ACPI_HANDLE(&dev->dev);
 	if (!handle || acpi_bus_get_device(handle, &acpi_dev)) {
 		dev_dbg(&dev->dev, "ACPI device not found in %s!\n", __func__);
 		return false;
@@ -159,7 +159,7 @@ static int pnpacpi_suspend(struct pnp_dev *dev, pm_message_t state)
 	acpi_handle handle;
 	int error = 0;
 
-	handle = DEVICE_ACPI_HANDLE(&dev->dev);
+	handle = ACPI_HANDLE(&dev->dev);
 	if (!handle || acpi_bus_get_device(handle, &acpi_dev)) {
 		dev_dbg(&dev->dev, "ACPI device not found in %s!\n", __func__);
 		return 0;
@@ -194,7 +194,7 @@ static int pnpacpi_suspend(struct pnp_dev *dev, pm_message_t state)
 static int pnpacpi_resume(struct pnp_dev *dev)
 {
 	struct acpi_device *acpi_dev;
-	acpi_handle handle = DEVICE_ACPI_HANDLE(&dev->dev);
+	acpi_handle handle = ACPI_HANDLE(&dev->dev);
 	int error = 0;
 
 	if (!handle || acpi_bus_get_device(handle, &acpi_dev)) {
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 06cec635e703..a7c04e24ca48 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -5501,6 +5501,6 @@ acpi_handle usb_get_hub_port_acpi_handle(struct usb_device *hdev,
 	if (!hub)
 		return NULL;
 
-	return DEVICE_ACPI_HANDLE(&hub->ports[port1 - 1]->dev);
+	return ACPI_HANDLE(&hub->ports[port1 - 1]->dev);
 }
 #endif
diff --git a/drivers/usb/core/usb-acpi.c b/drivers/usb/core/usb-acpi.c
index 255c14464bf2..4e243c37f17f 100644
--- a/drivers/usb/core/usb-acpi.c
+++ b/drivers/usb/core/usb-acpi.c
@@ -173,7 +173,7 @@ static int usb_acpi_find_device(struct device *dev, acpi_handle *handle)
 		}
 
 		/* root hub's parent is the usb hcd. */
-		parent_handle = DEVICE_ACPI_HANDLE(dev->parent);
+		parent_handle = ACPI_HANDLE(dev->parent);
 		*handle = acpi_get_child(parent_handle, udev->portnum);
 		if (!*handle)
 			return -ENODEV;
@@ -194,7 +194,7 @@ static int usb_acpi_find_device(struct device *dev, acpi_handle *handle)
 
 			raw_port_num = usb_hcd_find_raw_port_number(hcd,
 				port_num);
-			*handle = acpi_get_child(DEVICE_ACPI_HANDLE(&udev->dev),
+			*handle = acpi_get_child(ACPI_HANDLE(&udev->dev),
 				raw_port_num);
 			if (!*handle)
 				return -ENODEV;
diff --git a/drivers/xen/pci.c b/drivers/xen/pci.c
index 18fff88254eb..cc86b267056f 100644
--- a/drivers/xen/pci.c
+++ b/drivers/xen/pci.c
@@ -58,12 +58,12 @@ static int xen_add_device(struct device *dev)
 			add.flags = XEN_PCI_DEV_EXTFN;
 
 #ifdef CONFIG_ACPI
-		handle = DEVICE_ACPI_HANDLE(&pci_dev->dev);
+		handle = ACPI_HANDLE(&pci_dev->dev);
 		if (!handle && pci_dev->bus->bridge)
-			handle = DEVICE_ACPI_HANDLE(pci_dev->bus->bridge);
+			handle = ACPI_HANDLE(pci_dev->bus->bridge);
 #ifdef CONFIG_PCI_IOV
 		if (!handle && pci_dev->is_virtfn)
-			handle = DEVICE_ACPI_HANDLE(physfn->bus->bridge);
+			handle = ACPI_HANDLE(physfn->bus->bridge);
 #endif
 		if (handle) {
 			acpi_status status;
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 47369aadb1d1..86a3ba99a38d 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -482,8 +482,6 @@ static inline bool acpi_driver_match_device(struct device *dev,
 
 #endif	/* !CONFIG_ACPI */
 
-#define DEVICE_ACPI_HANDLE(dev)	ACPI_HANDLE(dev)
-
 #ifdef CONFIG_ACPI
 void acpi_os_set_prepare_sleep(int (*func)(u8 sleep_state,
 			       u32 pm1a_ctrl,  u32 pm1b_ctrl));
diff --git a/include/linux/pci-acpi.h b/include/linux/pci-acpi.h
index d006f0ca60f4..5a462c4e5009 100644
--- a/include/linux/pci-acpi.h
+++ b/include/linux/pci-acpi.h
@@ -27,7 +27,7 @@ static inline acpi_handle acpi_find_root_bridge_handle(struct pci_dev *pdev)
 	while (!pci_is_root_bus(pbus))
 		pbus = pbus->parent;
 
-	return DEVICE_ACPI_HANDLE(pbus->bridge);
+	return ACPI_HANDLE(pbus->bridge);
 }
 
 static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
@@ -39,7 +39,7 @@ static inline acpi_handle acpi_pci_get_bridge_handle(struct pci_bus *pbus)
 	else
 		dev = &pbus->self->dev;
 
-	return DEVICE_ACPI_HANDLE(dev);
+	return ACPI_HANDLE(dev);
 }
 
 void acpi_pci_add_bus(struct pci_bus *bus);
-- 
cgit 


From a104b4d467d1c4a09727bac2816928aef3304d3a Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 14 Nov 2013 23:18:32 +0100
Subject: ACPI / bind: Use (put|get)_device() on ACPI device objects too

When associating a "physical" device with an ACPI device object
acpi_bind_one() only uses get_device() to increment the reference
counter of the former, but there is no reason not to do that with
the latter too.  Among other things, that may help to avoid
use-after-free when an ACPI device object is freed without calling
acpi_unbind_one() for all "physical" devices associated with it
(that only can happen in buggy code, but then it's better if the
kernel doesn't crash as a result of a bug).

For this reason, modify acpi_bind_one() to apply get_device() to
the ACPI device object too and update acpi_unbind_one() to drop
that reference using put_device() as appropriate.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Lan Tianyu <tianyu.lan@intel.com>
---
 drivers/acpi/glue.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c
index 782071fd3df3..a22a295edb69 100644
--- a/drivers/acpi/glue.c
+++ b/drivers/acpi/glue.c
@@ -217,6 +217,7 @@ int acpi_bind_one(struct device *dev, acpi_handle handle)
 	if (!acpi_dev)
 		return -EINVAL;
 
+	get_device(&acpi_dev->dev);
 	get_device(dev);
 	physical_node = kzalloc(sizeof(*physical_node), GFP_KERNEL);
 	if (!physical_node) {
@@ -243,6 +244,7 @@ int acpi_bind_one(struct device *dev, acpi_handle handle)
 				goto err;
 
 			put_device(dev);
+			put_device(&acpi_dev->dev);
 			return 0;
 		}
 		if (pn->node_id == node_id) {
@@ -282,6 +284,7 @@ int acpi_bind_one(struct device *dev, acpi_handle handle)
  err:
 	ACPI_COMPANION_SET(dev, NULL);
 	put_device(dev);
+	put_device(&acpi_dev->dev);
 	return retval;
 }
 EXPORT_SYMBOL_GPL(acpi_bind_one);
@@ -307,8 +310,9 @@ int acpi_unbind_one(struct device *dev)
 			sysfs_remove_link(&acpi_dev->dev.kobj, physnode_name);
 			sysfs_remove_link(&dev->kobj, "firmware_node");
 			ACPI_COMPANION_SET(dev, NULL);
-			/* acpi_bind_one() increase refcnt by one. */
+			/* Drop references taken by acpi_bind_one(). */
 			put_device(dev);
+			put_device(&acpi_dev->dev);
 			kfree(entry);
 			break;
 		}
-- 
cgit 


From 1ca1a4cf59ea343a1a70084fe7cc96f37f3cf5b1 Mon Sep 17 00:00:00 2001
From: Chris Metcalf <cmetcalf@tilera.com>
Date: Thu, 14 Nov 2013 12:09:21 -0500
Subject: connector: improved unaligned access error fix

In af3e095a1fb4, Erik Jacobsen fixed one type of unaligned access
bug for ia64 by converting a 64-bit write to use put_unaligned().
Unfortunately, since gcc will convert a short memset() to a series
of appropriately-aligned stores, the problem is now visible again
on tilegx, where the memset that zeros out proc_event is converted
to three 64-bit stores, causing an unaligned access panic.

A better fix for the original problem is to ensure that proc_event
is aligned to 8 bytes here.  We can do that relatively easily by
arranging to start the struct cn_msg aligned to 8 bytes and then
offset by 4 bytes.  Doing so means that the immediately following
proc_event structure is then correctly aligned to 8 bytes.

The result is that the memset() stores are now aligned, and as an
added benefit, we can remove the put_unaligned() calls in the code.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/connector/cn_proc.c | 72 ++++++++++++++++++++++++++-------------------
 1 file changed, 42 insertions(+), 30 deletions(-)

diff --git a/drivers/connector/cn_proc.c b/drivers/connector/cn_proc.c
index c73fc2b74de2..18c5b9b16645 100644
--- a/drivers/connector/cn_proc.c
+++ b/drivers/connector/cn_proc.c
@@ -32,11 +32,23 @@
 #include <linux/atomic.h>
 #include <linux/pid_namespace.h>
 
-#include <asm/unaligned.h>
-
 #include <linux/cn_proc.h>
 
-#define CN_PROC_MSG_SIZE (sizeof(struct cn_msg) + sizeof(struct proc_event))
+/*
+ * Size of a cn_msg followed by a proc_event structure.  Since the
+ * sizeof struct cn_msg is a multiple of 4 bytes, but not 8 bytes, we
+ * add one 4-byte word to the size here, and then start the actual
+ * cn_msg structure 4 bytes into the stack buffer.  The result is that
+ * the immediately following proc_event structure is aligned to 8 bytes.
+ */
+#define CN_PROC_MSG_SIZE (sizeof(struct cn_msg) + sizeof(struct proc_event) + 4)
+
+/* See comment above; we test our assumption about sizeof struct cn_msg here. */
+static inline struct cn_msg *buffer_to_cn_msg(__u8 *buffer)
+{
+	BUILD_BUG_ON(sizeof(struct cn_msg) != 20);
+	return (struct cn_msg *)(buffer + 4);
+}
 
 static atomic_t proc_event_num_listeners = ATOMIC_INIT(0);
 static struct cb_id cn_proc_event_id = { CN_IDX_PROC, CN_VAL_PROC };
@@ -56,19 +68,19 @@ void proc_fork_connector(struct task_struct *task)
 {
 	struct cn_msg *msg;
 	struct proc_event *ev;
-	__u8 buffer[CN_PROC_MSG_SIZE];
+	__u8 buffer[CN_PROC_MSG_SIZE] __aligned(8);
 	struct timespec ts;
 	struct task_struct *parent;
 
 	if (atomic_read(&proc_event_num_listeners) < 1)
 		return;
 
-	msg = (struct cn_msg *)buffer;
+	msg = buffer_to_cn_msg(buffer);
 	ev = (struct proc_event *)msg->data;
 	memset(&ev->event_data, 0, sizeof(ev->event_data));
 	get_seq(&msg->seq, &ev->cpu);
 	ktime_get_ts(&ts); /* get high res monotonic timestamp */
-	put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
+	ev->timestamp_ns = timespec_to_ns(&ts);
 	ev->what = PROC_EVENT_FORK;
 	rcu_read_lock();
 	parent = rcu_dereference(task->real_parent);
@@ -91,17 +103,17 @@ void proc_exec_connector(struct task_struct *task)
 	struct cn_msg *msg;
 	struct proc_event *ev;
 	struct timespec ts;
-	__u8 buffer[CN_PROC_MSG_SIZE];
+	__u8 buffer[CN_PROC_MSG_SIZE] __aligned(8);
 
 	if (atomic_read(&proc_event_num_listeners) < 1)
 		return;
 
-	msg = (struct cn_msg *)buffer;
+	msg = buffer_to_cn_msg(buffer);
 	ev = (struct proc_event *)msg->data;
 	memset(&ev->event_data, 0, sizeof(ev->event_data));
 	get_seq(&msg->seq, &ev->cpu);
 	ktime_get_ts(&ts); /* get high res monotonic timestamp */
-	put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
+	ev->timestamp_ns = timespec_to_ns(&ts);
 	ev->what = PROC_EVENT_EXEC;
 	ev->event_data.exec.process_pid = task->pid;
 	ev->event_data.exec.process_tgid = task->tgid;
@@ -117,14 +129,14 @@ void proc_id_connector(struct task_struct *task, int which_id)
 {
 	struct cn_msg *msg;
 	struct proc_event *ev;
-	__u8 buffer[CN_PROC_MSG_SIZE];
+	__u8 buffer[CN_PROC_MSG_SIZE] __aligned(8);
 	struct timespec ts;
 	const struct cred *cred;
 
 	if (atomic_read(&proc_event_num_listeners) < 1)
 		return;
 
-	msg = (struct cn_msg *)buffer;
+	msg = buffer_to_cn_msg(buffer);
 	ev = (struct proc_event *)msg->data;
 	memset(&ev->event_data, 0, sizeof(ev->event_data));
 	ev->what = which_id;
@@ -145,7 +157,7 @@ void proc_id_connector(struct task_struct *task, int which_id)
 	rcu_read_unlock();
 	get_seq(&msg->seq, &ev->cpu);
 	ktime_get_ts(&ts); /* get high res monotonic timestamp */
-	put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
+	ev->timestamp_ns = timespec_to_ns(&ts);
 
 	memcpy(&msg->id, &cn_proc_event_id, sizeof(msg->id));
 	msg->ack = 0; /* not used */
@@ -159,17 +171,17 @@ void proc_sid_connector(struct task_struct *task)
 	struct cn_msg *msg;
 	struct proc_event *ev;
 	struct timespec ts;
-	__u8 buffer[CN_PROC_MSG_SIZE];
+	__u8 buffer[CN_PROC_MSG_SIZE] __aligned(8);
 
 	if (atomic_read(&proc_event_num_listeners) < 1)
 		return;
 
-	msg = (struct cn_msg *)buffer;
+	msg = buffer_to_cn_msg(buffer);
 	ev = (struct proc_event *)msg->data;
 	memset(&ev->event_data, 0, sizeof(ev->event_data));
 	get_seq(&msg->seq, &ev->cpu);
 	ktime_get_ts(&ts); /* get high res monotonic timestamp */
-	put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
+	ev->timestamp_ns = timespec_to_ns(&ts);
 	ev->what = PROC_EVENT_SID;
 	ev->event_data.sid.process_pid = task->pid;
 	ev->event_data.sid.process_tgid = task->tgid;
@@ -186,17 +198,17 @@ void proc_ptrace_connector(struct task_struct *task, int ptrace_id)
 	struct cn_msg *msg;
 	struct proc_event *ev;
 	struct timespec ts;
-	__u8 buffer[CN_PROC_MSG_SIZE];
+	__u8 buffer[CN_PROC_MSG_SIZE] __aligned(8);
 
 	if (atomic_read(&proc_event_num_listeners) < 1)
 		return;
 
-	msg = (struct cn_msg *)buffer;
+	msg = buffer_to_cn_msg(buffer);
 	ev = (struct proc_event *)msg->data;
 	memset(&ev->event_data, 0, sizeof(ev->event_data));
 	get_seq(&msg->seq, &ev->cpu);
 	ktime_get_ts(&ts); /* get high res monotonic timestamp */
-	put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
+	ev->timestamp_ns = timespec_to_ns(&ts);
 	ev->what = PROC_EVENT_PTRACE;
 	ev->event_data.ptrace.process_pid  = task->pid;
 	ev->event_data.ptrace.process_tgid = task->tgid;
@@ -221,17 +233,17 @@ void proc_comm_connector(struct task_struct *task)
 	struct cn_msg *msg;
 	struct proc_event *ev;
 	struct timespec ts;
-	__u8 buffer[CN_PROC_MSG_SIZE];
+	__u8 buffer[CN_PROC_MSG_SIZE] __aligned(8);
 
 	if (atomic_read(&proc_event_num_listeners) < 1)
 		return;
 
-	msg = (struct cn_msg *)buffer;
+	msg = buffer_to_cn_msg(buffer);
 	ev = (struct proc_event *)msg->data;
 	memset(&ev->event_data, 0, sizeof(ev->event_data));
 	get_seq(&msg->seq, &ev->cpu);
 	ktime_get_ts(&ts); /* get high res monotonic timestamp */
-	put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
+	ev->timestamp_ns = timespec_to_ns(&ts);
 	ev->what = PROC_EVENT_COMM;
 	ev->event_data.comm.process_pid  = task->pid;
 	ev->event_data.comm.process_tgid = task->tgid;
@@ -248,18 +260,18 @@ void proc_coredump_connector(struct task_struct *task)
 {
 	struct cn_msg *msg;
 	struct proc_event *ev;
-	__u8 buffer[CN_PROC_MSG_SIZE];
+	__u8 buffer[CN_PROC_MSG_SIZE] __aligned(8);
 	struct timespec ts;
 
 	if (atomic_read(&proc_event_num_listeners) < 1)
 		return;
 
-	msg = (struct cn_msg *)buffer;
+	msg = buffer_to_cn_msg(buffer);
 	ev = (struct proc_event *)msg->data;
 	memset(&ev->event_data, 0, sizeof(ev->event_data));
 	get_seq(&msg->seq, &ev->cpu);
 	ktime_get_ts(&ts); /* get high res monotonic timestamp */
-	put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
+	ev->timestamp_ns = timespec_to_ns(&ts);
 	ev->what = PROC_EVENT_COREDUMP;
 	ev->event_data.coredump.process_pid = task->pid;
 	ev->event_data.coredump.process_tgid = task->tgid;
@@ -275,18 +287,18 @@ void proc_exit_connector(struct task_struct *task)
 {
 	struct cn_msg *msg;
 	struct proc_event *ev;
-	__u8 buffer[CN_PROC_MSG_SIZE];
+	__u8 buffer[CN_PROC_MSG_SIZE] __aligned(8);
 	struct timespec ts;
 
 	if (atomic_read(&proc_event_num_listeners) < 1)
 		return;
 
-	msg = (struct cn_msg *)buffer;
+	msg = buffer_to_cn_msg(buffer);
 	ev = (struct proc_event *)msg->data;
 	memset(&ev->event_data, 0, sizeof(ev->event_data));
 	get_seq(&msg->seq, &ev->cpu);
 	ktime_get_ts(&ts); /* get high res monotonic timestamp */
-	put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
+	ev->timestamp_ns = timespec_to_ns(&ts);
 	ev->what = PROC_EVENT_EXIT;
 	ev->event_data.exit.process_pid = task->pid;
 	ev->event_data.exit.process_tgid = task->tgid;
@@ -312,18 +324,18 @@ static void cn_proc_ack(int err, int rcvd_seq, int rcvd_ack)
 {
 	struct cn_msg *msg;
 	struct proc_event *ev;
-	__u8 buffer[CN_PROC_MSG_SIZE];
+	__u8 buffer[CN_PROC_MSG_SIZE] __aligned(8);
 	struct timespec ts;
 
 	if (atomic_read(&proc_event_num_listeners) < 1)
 		return;
 
-	msg = (struct cn_msg *)buffer;
+	msg = buffer_to_cn_msg(buffer);
 	ev = (struct proc_event *)msg->data;
 	memset(&ev->event_data, 0, sizeof(ev->event_data));
 	msg->seq = rcvd_seq;
 	ktime_get_ts(&ts); /* get high res monotonic timestamp */
-	put_unaligned(timespec_to_ns(&ts), (__u64 *)&ev->timestamp_ns);
+	ev->timestamp_ns = timespec_to_ns(&ts);
 	ev->cpu = -1;
 	ev->what = PROC_EVENT_NONE;
 	ev->event_data.ack.err = err;
-- 
cgit 


From 45c42a7f582cc07259bc78910de8b0b1c94094d5 Mon Sep 17 00:00:00 2001
From: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Date: Thu, 14 Nov 2013 14:03:51 +0200
Subject: ACPI: Provide acpi_dev_name accessor for struct acpi_device device
 name

struct acpi_device fields are only available when CONFIG_ACPI is set. We may
find use for dev_name(&adev->dev) in generic code that is build also without
CONFIG_ACPI is set but currently this requires #ifdef CONFIG_ACPI churn.

Provide here an accessor that returns dev_name of embedded struct device dev
in struct acpi_device or NULL depending on CONFIG_ACPI setting.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/linux/acpi.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 86a3ba99a38d..d9099b15b472 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -53,6 +53,11 @@ static inline acpi_handle acpi_device_handle(struct acpi_device *adev)
 #define ACPI_COMPANION_SET(dev, adev)	ACPI_COMPANION(dev) = (adev)
 #define ACPI_HANDLE(dev)		acpi_device_handle(ACPI_COMPANION(dev))
 
+static inline const char *acpi_dev_name(struct acpi_device *adev)
+{
+	return dev_name(&adev->dev);
+}
+
 enum acpi_irq_model_id {
 	ACPI_IRQ_MODEL_PIC = 0,
 	ACPI_IRQ_MODEL_IOAPIC,
@@ -414,6 +419,11 @@ static inline bool acpi_driver_match_device(struct device *dev,
 #define ACPI_COMPANION_SET(dev, adev)	do { } while (0)
 #define ACPI_HANDLE(dev)		(NULL)
 
+static inline const char *acpi_dev_name(struct acpi_device *adev)
+{
+	return NULL;
+}
+
 static inline void acpi_early_init(void) { }
 
 static inline int early_acpi_boot_init(void)
-- 
cgit 


From 70762abb9f89d97603a04cc3438988ca0cf886eb Mon Sep 17 00:00:00 2001
From: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Date: Thu, 14 Nov 2013 14:03:52 +0200
Subject: i2c: Use stable dev_name for ACPI enumerated I2C slaves

Current I2C adapter id - client address "x-00yy" based device naming scheme
is not always stable enough to be used in name based matching, for instance
within ALSA SoC subsystem.

This is problematic in PC kind of platforms where I2C adapter numbers can
change due variable amount of bus controllers, probe order, add-on cards or
just because of BIOS settings.

This patch addresses the problem by using the ACPI device name with
"i2c-" prefix for ACPI enumerated I2C slaves. For them device name
"x-00yz" becomes "i2c-INTABCD:ij" after this patch.

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/i2c/i2c-core.c | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index f74af33f5ddc..bc9a294c07f7 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -618,6 +618,22 @@ void i2c_unlock_adapter(struct i2c_adapter *adapter)
 }
 EXPORT_SYMBOL_GPL(i2c_unlock_adapter);
 
+static void i2c_dev_set_name(struct i2c_adapter *adap,
+			     struct i2c_client *client)
+{
+	struct acpi_device *adev = ACPI_COMPANION(&client->dev);
+
+	if (adev) {
+		dev_set_name(&client->dev, "i2c-%s", acpi_dev_name(adev));
+		return;
+	}
+
+	/* For 10-bit clients, add an arbitrary offset to avoid collisions */
+	dev_set_name(&client->dev, "%d-%04x", i2c_adapter_id(adap),
+		     client->addr | ((client->flags & I2C_CLIENT_TEN)
+				     ? 0xa000 : 0));
+}
+
 /**
  * i2c_new_device - instantiate an i2c device
  * @adap: the adapter managing the device
@@ -676,10 +692,7 @@ i2c_new_device(struct i2c_adapter *adap, struct i2c_board_info const *info)
 	client->dev.of_node = info->of_node;
 	ACPI_COMPANION_SET(&client->dev, info->acpi_node.companion);
 
-	/* For 10-bit clients, add an arbitrary offset to avoid collisions */
-	dev_set_name(&client->dev, "%d-%04x", i2c_adapter_id(adap),
-		     client->addr | ((client->flags & I2C_CLIENT_TEN)
-				     ? 0xa000 : 0));
+	i2c_dev_set_name(adap, client);
 	status = device_register(&client->dev);
 	if (status)
 		goto out_err;
-- 
cgit 


From e13ac47bec20797fa9262cffcae9cf0e3aa1b9b2 Mon Sep 17 00:00:00 2001
From: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Date: Thu, 14 Nov 2013 14:03:53 +0200
Subject: spi: Use stable dev_name for ACPI enumerated SPI slaves

Current spi bus_num.chip_select "spix.y" based device naming scheme may not
be stable enough to be used in name based matching, for instance within
ALSA SoC subsystem.

This can be problem in PC kind of platforms if there are changes in SPI bus
configuration, amount of busses or probe order.

This patch addresses the problem by using the ACPI device name with
"spi-" prefix for ACPI enumerated SPI slave. For them device name
"spix.y" becomes "spi-INTABCD:ij".

Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Acked-by: Mark Brown <broonie@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/spi/spi.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index a968d8549ee5..8763d93ce2b7 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -357,6 +357,19 @@ struct spi_device *spi_alloc_device(struct spi_master *master)
 }
 EXPORT_SYMBOL_GPL(spi_alloc_device);
 
+static void spi_dev_set_name(struct spi_device *spi)
+{
+	struct acpi_device *adev = ACPI_COMPANION(&spi->dev);
+
+	if (adev) {
+		dev_set_name(&spi->dev, "spi-%s", acpi_dev_name(adev));
+		return;
+	}
+
+	dev_set_name(&spi->dev, "%s.%u", dev_name(&spi->master->dev),
+		     spi->chip_select);
+}
+
 /**
  * spi_add_device - Add spi_device allocated with spi_alloc_device
  * @spi: spi_device to register
@@ -383,9 +396,7 @@ int spi_add_device(struct spi_device *spi)
 	}
 
 	/* Set the bus ID string */
-	dev_set_name(&spi->dev, "%s.%u", dev_name(&spi->master->dev),
-			spi->chip_select);
-
+	spi_dev_set_name(spi);
 
 	/* We need to make sure there's no other device with this
 	 * chipselect **BEFORE** we call setup(), else we'll trash
-- 
cgit 


From 5061de3666382f1f53fab89756792a1b177fd858 Mon Sep 17 00:00:00 2001
From: Michael Dalton <mwdalton@google.com>
Date: Thu, 14 Nov 2013 10:41:04 -0800
Subject: virtio-net: mergeable buffer size should include virtio-net header

Commit 2613af0ed18a ("virtio_net: migrate mergeable rx buffers to page
frag allocators") changed the mergeable receive buffer size from PAGE_SIZE
to MTU-size. However, the merge buffer size does not take into account the
size of the virtio-net header. Consequently, packets that are MTU-size
will take two buffers intead of one (to store the virtio-net header),
substantially decreasing the throughput of MTU-size traffic due to TCP
window / SKB truesize effects.

This commit changes the mergeable buffer size to include the virtio-net
header. The buffer size is cacheline-aligned because skb_page_frag_refill
will not automatically align the requested size.

Benchmarks taken from an average of 5 netperf 30-second TCP_STREAM runs
between two QEMU VMs on a single physical machine. Each VM has two VCPUs and
vhost enabled. All VMs and vhost threads run in a single 4 CPU cgroup
cpuset, using cgroups to ensure that other processes in the system will not
be scheduled on the benchmark CPUs. Transmit offloads and mergeable receive
buffers are enabled, but guest_tso4 / guest_csum are explicitly disabled to
force MTU-sized packets on the receiver.

next-net trunk before 2613af0ed18a (PAGE_SIZE buf): 3861.08Gb/s
net-next trunk (MTU 1500- packet uses two buf due to size bug): 4076.62Gb/s
net-next trunk (MTU 1480- packet fits in one buf): 6301.34Gb/s
net-next trunk w/ size fix (MTU 1500 - packet fits in one buf): 6445.44Gb/s

Suggested-by: Eric Northup <digitaleric@google.com>
Signed-off-by: Michael Dalton <mwdalton@google.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/virtio_net.c | 30 ++++++++++++++++--------------
 1 file changed, 16 insertions(+), 14 deletions(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 01f4eb5c8b78..69fb225e59a6 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -36,7 +36,10 @@ module_param(csum, bool, 0444);
 module_param(gso, bool, 0444);
 
 /* FIXME: MTU in config. */
-#define MAX_PACKET_LEN (ETH_HLEN + VLAN_HLEN + ETH_DATA_LEN)
+#define GOOD_PACKET_LEN (ETH_HLEN + VLAN_HLEN + ETH_DATA_LEN)
+#define MERGE_BUFFER_LEN (ALIGN(GOOD_PACKET_LEN + \
+                                sizeof(struct virtio_net_hdr_mrg_rxbuf), \
+                                L1_CACHE_BYTES))
 #define GOOD_COPY_LEN	128
 
 #define VIRTNET_DRIVER_VERSION "1.0.0"
@@ -314,10 +317,10 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb)
 			head_skb->dev->stats.rx_length_errors++;
 			return -EINVAL;
 		}
-		if (unlikely(len > MAX_PACKET_LEN)) {
+		if (unlikely(len > MERGE_BUFFER_LEN)) {
 			pr_debug("%s: rx error: merge buffer too long\n",
 				 head_skb->dev->name);
-			len = MAX_PACKET_LEN;
+			len = MERGE_BUFFER_LEN;
 		}
 		if (unlikely(num_skb_frags == MAX_SKB_FRAGS)) {
 			struct sk_buff *nskb = alloc_skb(0, GFP_ATOMIC);
@@ -336,18 +339,17 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb)
 		if (curr_skb != head_skb) {
 			head_skb->data_len += len;
 			head_skb->len += len;
-			head_skb->truesize += MAX_PACKET_LEN;
+			head_skb->truesize += MERGE_BUFFER_LEN;
 		}
 		page = virt_to_head_page(buf);
 		offset = buf - (char *)page_address(page);
 		if (skb_can_coalesce(curr_skb, num_skb_frags, page, offset)) {
 			put_page(page);
 			skb_coalesce_rx_frag(curr_skb, num_skb_frags - 1,
-					     len, MAX_PACKET_LEN);
+					     len, MERGE_BUFFER_LEN);
 		} else {
 			skb_add_rx_frag(curr_skb, num_skb_frags, page,
-					offset, len,
-					MAX_PACKET_LEN);
+					offset, len, MERGE_BUFFER_LEN);
 		}
 		--rq->num;
 	}
@@ -383,7 +385,7 @@ static void receive_buf(struct receive_queue *rq, void *buf, unsigned int len)
 		struct page *page = virt_to_head_page(buf);
 		skb = page_to_skb(rq, page,
 				  (char *)buf - (char *)page_address(page),
-				  len, MAX_PACKET_LEN);
+				  len, MERGE_BUFFER_LEN);
 		if (unlikely(!skb)) {
 			dev->stats.rx_dropped++;
 			put_page(page);
@@ -471,11 +473,11 @@ static int add_recvbuf_small(struct receive_queue *rq, gfp_t gfp)
 	struct skb_vnet_hdr *hdr;
 	int err;
 
-	skb = __netdev_alloc_skb_ip_align(vi->dev, MAX_PACKET_LEN, gfp);
+	skb = __netdev_alloc_skb_ip_align(vi->dev, GOOD_PACKET_LEN, gfp);
 	if (unlikely(!skb))
 		return -ENOMEM;
 
-	skb_put(skb, MAX_PACKET_LEN);
+	skb_put(skb, GOOD_PACKET_LEN);
 
 	hdr = skb_vnet_hdr(skb);
 	sg_set_buf(rq->sg, &hdr->hdr, sizeof hdr->hdr);
@@ -542,20 +544,20 @@ static int add_recvbuf_mergeable(struct receive_queue *rq, gfp_t gfp)
 	int err;
 
 	if (gfp & __GFP_WAIT) {
-		if (skb_page_frag_refill(MAX_PACKET_LEN, &vi->alloc_frag,
+		if (skb_page_frag_refill(MERGE_BUFFER_LEN, &vi->alloc_frag,
 					 gfp)) {
 			buf = (char *)page_address(vi->alloc_frag.page) +
 			      vi->alloc_frag.offset;
 			get_page(vi->alloc_frag.page);
-			vi->alloc_frag.offset += MAX_PACKET_LEN;
+			vi->alloc_frag.offset += MERGE_BUFFER_LEN;
 		}
 	} else {
-		buf = netdev_alloc_frag(MAX_PACKET_LEN);
+		buf = netdev_alloc_frag(MERGE_BUFFER_LEN);
 	}
 	if (!buf)
 		return -ENOMEM;
 
-	sg_init_one(rq->sg, buf, MAX_PACKET_LEN);
+	sg_init_one(rq->sg, buf, MERGE_BUFFER_LEN);
 	err = virtqueue_add_inbuf(rq->vq, rq->sg, 1, buf, gfp);
 	if (err < 0)
 		put_page(virt_to_head_page(buf));
-- 
cgit 


From 86b0cc12bba9cb9cc3c20974dec565f44c961fc3 Mon Sep 17 00:00:00 2001
From: Lan Tianyu <tianyu.lan@intel.com>
Date: Wed, 13 Nov 2013 11:27:42 +0800
Subject: ACPI / AC: Remove struct acpi_device pointer from struct acpi_ac

Now the pointer of struct acpi_device can be got by
ACPI_COMPANION(struct acpi_ac->pdev->dev). So the pointer
is not necessary and remove it.

Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/ac.c | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index b9f0d5f4bba5..8711e3797165 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -56,7 +56,6 @@ static int ac_sleep_before_get_state_ms;
 
 struct acpi_ac {
 	struct power_supply charger;
-	struct acpi_device *adev;
 	struct platform_device *pdev;
 	unsigned long long state;
 };
@@ -70,8 +69,9 @@ struct acpi_ac {
 static int acpi_ac_get_state(struct acpi_ac *ac)
 {
 	acpi_status status;
+	acpi_handle handle = ACPI_HANDLE(&ac->pdev->dev);
 
-	status = acpi_evaluate_integer(ac->adev->handle, "_PSR", NULL,
+	status = acpi_evaluate_integer(handle, "_PSR", NULL,
 				       &ac->state);
 	if (ACPI_FAILURE(status)) {
 		ACPI_EXCEPTION((AE_INFO, status,
@@ -119,6 +119,7 @@ static enum power_supply_property ac_props[] = {
 static void acpi_ac_notify_handler(acpi_handle handle, u32 event, void *data)
 {
 	struct acpi_ac *ac = data;
+	struct acpi_device *adev;
 
 	if (!ac)
 		return;
@@ -141,10 +142,11 @@ static void acpi_ac_notify_handler(acpi_handle handle, u32 event, void *data)
 			msleep(ac_sleep_before_get_state_ms);
 
 		acpi_ac_get_state(ac);
-		acpi_bus_generate_netlink_event(ac->adev->pnp.device_class,
+		adev = ACPI_COMPANION(&ac->pdev->dev);
+		acpi_bus_generate_netlink_event(adev->pnp.device_class,
 						dev_name(&ac->pdev->dev),
 						event, (u32) ac->state);
-		acpi_notifier_call_chain(ac->adev, event, (u32) ac->state);
+		acpi_notifier_call_chain(adev, event, (u32) ac->state);
 		kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
 	}
 
@@ -178,8 +180,8 @@ static int acpi_ac_probe(struct platform_device *pdev)
 	if (!pdev)
 		return -EINVAL;
 
-	result = acpi_bus_get_device(ACPI_HANDLE(&pdev->dev), &adev);
-	if (result)
+	adev = ACPI_COMPANION(&pdev->dev);
+	if (!adev)
 		return -ENODEV;
 
 	ac = kzalloc(sizeof(struct acpi_ac), GFP_KERNEL);
@@ -188,7 +190,6 @@ static int acpi_ac_probe(struct platform_device *pdev)
 
 	strcpy(acpi_device_name(adev), ACPI_AC_DEVICE_NAME);
 	strcpy(acpi_device_class(adev), ACPI_AC_CLASS);
-	ac->adev = adev;
 	ac->pdev = pdev;
 	platform_set_drvdata(pdev, ac);
 
-- 
cgit 


From 84a035f6940fbabef0826f4fabdd59ec8e131b81 Mon Sep 17 00:00:00 2001
From: "Geyslan G. Bem" <geyslan@gmail.com>
Date: Thu, 14 Nov 2013 16:12:54 -0300
Subject: net/hsr: Fix possible leak in 'hsr_get_node_status()'

If 'hsr_get_node_data()' returns error, going directly to 'fail' label
doesn't free the memory pointed by 'skb_out'.

Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/hsr/hsr_netlink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c
index 79d72ca309ce..3b9205d2afc4 100644
--- a/net/hsr/hsr_netlink.c
+++ b/net/hsr/hsr_netlink.c
@@ -249,7 +249,7 @@ static int hsr_get_node_status(struct sk_buff *skb_in, struct genl_info *info)
 			&hsr_node_if2_age,
 			&hsr_node_if2_seq);
 	if (res < 0)
-		goto fail;
+		goto nla_put_failure;
 
 	res = nla_put(skb_out, HSR_A_NODE_ADDR, ETH_ALEN,
 					nla_data(info->attrs[HSR_A_NODE_ADDR]));
-- 
cgit 


From 6a0c7cd33075f6b7f1d80145bb19812beb3fc5c9 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 14 Nov 2013 23:26:58 +0100
Subject: PM / Hibernate: Do not crash kernel in free_basic_memory_bitmaps()

I have received a report about the BUG_ON() in free_basic_memory_bitmaps()
triggering mysteriously during an aborted s2disk hibernation attempt.
The only way I can explain that is that /dev/snapshot was first
opened for writing (resume mode), then closed and then opened again
for reading and closed again without freezing tasks.  In that case
the first invocation of snapshot_open() would set the free_bitmaps
flag in snapshot_state, which is a static variable.  That flag
wouldn't be cleared later and the second invocation of snapshot_open()
would just leave it like that, so the subsequent snapshot_release()
would see data->frozen set and free_basic_memory_bitmaps() would be
called unnecessarily.

To prevent that from happening clear data->free_bitmaps in
snapshot_open() when the file is being opened for reading (hibernate
mode).

In addition to that, replace the BUG_ON() in free_basic_memory_bitmaps()
with a WARN_ON() as the kernel can continue just fine if the condition
checked by that macro occurs.

Fixes: aab172891542 (PM / hibernate: Fix user space driven resume regression)
Reported-by: Oliver Lorenz <olli@olorenz.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: 3.12+ <stable@vger.kernel.org> # 3.12+
---
 kernel/power/snapshot.c | 3 ++-
 kernel/power/user.c     | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 98c3b34a4cff..ac2d1f69490f 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -792,7 +792,8 @@ void free_basic_memory_bitmaps(void)
 {
 	struct memory_bitmap *bm1, *bm2;
 
-	BUG_ON(!(forbidden_pages_map && free_pages_map));
+	if (WARN_ON(!(forbidden_pages_map && free_pages_map)))
+		return;
 
 	bm1 = forbidden_pages_map;
 	bm2 = free_pages_map;
diff --git a/kernel/power/user.c b/kernel/power/user.c
index 957f06164ad1..ffc931c384ac 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -70,6 +70,7 @@ static int snapshot_open(struct inode *inode, struct file *filp)
 		data->swap = swsusp_resume_device ?
 			swap_type_of(swsusp_resume_device, 0, NULL) : -1;
 		data->mode = O_RDONLY;
+		data->free_bitmaps = false;
 		error = pm_notifier_call_chain(PM_HIBERNATION_PREPARE);
 		if (error)
 			pm_notifier_call_chain(PM_POST_HIBERNATION);
-- 
cgit 


From c9e9042994d37cbc1ee538c500e9da1bb9d1bcdf Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 14 Nov 2013 13:37:54 -0800
Subject: ipv4: fix possible seqlock deadlock

ip4_datagram_connect() being called from process context,
it should use IP_INC_STATS() instead of IP_INC_STATS_BH()
otherwise we can deadlock on 32bit arches, or get corruptions of
SNMP counters.

Fixes: 584bdf8cbdf6 ("[IPV4]: Fix "ipOutNoRoutes" counter error for TCP and UDP")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/datagram.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv4/datagram.c b/net/ipv4/datagram.c
index b28e863fe0a7..19e36376d2a0 100644
--- a/net/ipv4/datagram.c
+++ b/net/ipv4/datagram.c
@@ -57,7 +57,7 @@ int ip4_datagram_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 	if (IS_ERR(rt)) {
 		err = PTR_ERR(rt);
 		if (err == -ENETUNREACH)
-			IP_INC_STATS_BH(sock_net(sk), IPSTATS_MIB_OUTNOROUTES);
+			IP_INC_STATS(sock_net(sk), IPSTATS_MIB_OUTNOROUTES);
 		goto out;
 	}
 
-- 
cgit 


From 557fc5873ef178c4b3e1e36a42db547ecdc43f9b Mon Sep 17 00:00:00 2001
From: oftedal <oftedal@gmail.com>
Date: Fri, 18 Oct 2013 22:28:29 +0200
Subject: sparc: PCI: Fix incorrect address calculation of PCI Bridge windows
 on Simba-bridges

The SIMBA APB Bridges lacks the 'ranges' of-property describing the
PCI I/O and memory areas located beneath the bridge. Faking this
information has been performed by reading range registers in the
APB bridge, and calculating the corresponding areas.

In commit 01f94c4a6ced476ce69b895426fc29bfc48c69bd
("Fix sabre pci controllers with new probing scheme.") a bug was
introduced into this calculation, causing the PCI memory areas
to be calculated incorrectly: The shift size was set to be
identical for I/O and MEM ranges, which is incorrect.

This patch set the shift size of the MEM range back to the
value used before 01f94c4a6ced476ce69b895426fc29bfc48c69bd.

Signed-off-by: Kjetil Oftedal <oftedal@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/pci.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index bc4d3f5d2e5d..cb021453de2a 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -398,8 +398,8 @@ static void apb_fake_ranges(struct pci_dev *dev,
 	apb_calc_first_last(map, &first, &last);
 	res = bus->resource[1];
 	res->flags = IORESOURCE_MEM;
-	region.start = (first << 21);
-	region.end = (last << 21) + ((1 << 21) - 1);
+	region.start = (first << 29);
+	region.end = (last << 29) + ((1 << 29) - 1);
 	pcibios_bus_to_resource(dev, res, &region);
 }
 
-- 
cgit 


From 1a36265bf7d7e16b35fab5ae7f2f5d499bd0c14d Mon Sep 17 00:00:00 2001
From: Kirill Tkhai <tkhai@yandex.ru>
Date: Sat, 14 Sep 2013 16:00:09 +0400
Subject: sparc64: Add self-IPI support for smp_send_reschedule()

CONFIG_NO_HZ_FULL requires possibility of smp_send_reschedule()
for the calling CPU. Currently, it is used in inc_nr_running()
scheduler primitive only.

Nobody calls smp_send_reschedule() from preemptible context
(furthermore, it looks like it will be save if anybody use it
another way in the future). But anyway I add WARN_ON() here
just to return here if anything changes.

Signed-off-by: Kirill Tkhai <tkhai@yandex.ru>
CC: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/smp_64.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/sparc/kernel/smp_64.c b/arch/sparc/kernel/smp_64.c
index e142545244f2..b66a5338231e 100644
--- a/arch/sparc/kernel/smp_64.c
+++ b/arch/sparc/kernel/smp_64.c
@@ -1399,8 +1399,13 @@ void __init smp_cpus_done(unsigned int max_cpus)
 
 void smp_send_reschedule(int cpu)
 {
-	xcall_deliver((u64) &xcall_receive_signal, 0, 0,
-		      cpumask_of(cpu));
+	if (cpu == smp_processor_id()) {
+		WARN_ON_ONCE(preemptible());
+		set_softint(1 << PIL_SMP_RECEIVE_SIGNAL);
+	} else {
+		xcall_deliver((u64) &xcall_receive_signal,
+			      0, 0, cpumask_of(cpu));
+	}
 }
 
 void __irq_entry smp_receive_signal_client(int irq, struct pt_regs *regs)
-- 
cgit 


From 812cb83a56a908729c453a7db3fb2c262119bc9d Mon Sep 17 00:00:00 2001
From: Kirill Tkhai <tkhai@yandex.ru>
Date: Sat, 14 Sep 2013 16:02:11 +0400
Subject: sparc64: Implement HAVE_CONTEXT_TRACKING

Mark the places when the system are in user or are in kernel.
This is used to make full dynticks system (tickless) --
CONFIG_NO_HZ_FULL dependence.

Signed-off-by: Kirill Tkhai <tkhai@yandex.ru>
CC: David Miller <davem@davemloft.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/Kconfig                      |  1 +
 arch/sparc/include/asm/thread_info_64.h |  3 +-
 arch/sparc/kernel/entry.h               |  1 -
 arch/sparc/kernel/kgdb_64.c             |  5 +-
 arch/sparc/kernel/kprobes.c             |  7 ++-
 arch/sparc/kernel/process_64.c          |  2 +
 arch/sparc/kernel/ptrace_64.c           | 10 ++++
 arch/sparc/kernel/rtrap_64.S            |  8 +++-
 arch/sparc/kernel/signal_64.c           | 13 ++++-
 arch/sparc/kernel/sys_sparc_64.c        |  3 ++
 arch/sparc/kernel/syscalls.S            |  8 ++--
 arch/sparc/kernel/traps_64.c            | 85 ++++++++++++++++++++++++++-------
 arch/sparc/kernel/unaligned_64.c        | 16 +++++--
 arch/sparc/mm/fault_64.c                | 14 ++++--
 14 files changed, 137 insertions(+), 39 deletions(-)

diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 78c4fdb91bc5..01d77d78cd32 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -64,6 +64,7 @@ config SPARC64
 	select HAVE_DYNAMIC_FTRACE
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_SYSCALL_TRACEPOINTS
+	select HAVE_CONTEXT_TRACKING
 	select HAVE_DEBUG_KMEMLEAK
 	select RTC_DRV_CMOS
 	select RTC_DRV_BQ4802
diff --git a/arch/sparc/include/asm/thread_info_64.h b/arch/sparc/include/asm/thread_info_64.h
index d5e504251079..5d9292ab1077 100644
--- a/arch/sparc/include/asm/thread_info_64.h
+++ b/arch/sparc/include/asm/thread_info_64.h
@@ -192,7 +192,7 @@ register struct thread_info *current_thread_info_reg asm("g6");
 #define TIF_UNALIGNED		5	/* allowed to do unaligned accesses */
 /* flag bit 6 is available */
 #define TIF_32BIT		7	/* 32-bit binary */
-/* flag bit 8 is available */
+#define TIF_NOHZ		8	/* in adaptive nohz mode */
 #define TIF_SECCOMP		9	/* secure computing */
 #define TIF_SYSCALL_AUDIT	10	/* syscall auditing active */
 #define TIF_SYSCALL_TRACEPOINT	11	/* syscall tracepoint instrumentation */
@@ -210,6 +210,7 @@ register struct thread_info *current_thread_info_reg asm("g6");
 #define _TIF_NEED_RESCHED	(1<<TIF_NEED_RESCHED)
 #define _TIF_UNALIGNED		(1<<TIF_UNALIGNED)
 #define _TIF_32BIT		(1<<TIF_32BIT)
+#define _TIF_NOHZ		(1<<TIF_NOHZ)
 #define _TIF_SECCOMP		(1<<TIF_SECCOMP)
 #define _TIF_SYSCALL_AUDIT	(1<<TIF_SYSCALL_AUDIT)
 #define _TIF_SYSCALL_TRACEPOINT	(1<<TIF_SYSCALL_TRACEPOINT)
diff --git a/arch/sparc/kernel/entry.h b/arch/sparc/kernel/entry.h
index 9c179fbfb219..140966fbd303 100644
--- a/arch/sparc/kernel/entry.h
+++ b/arch/sparc/kernel/entry.h
@@ -88,7 +88,6 @@ extern asmlinkage void syscall_trace_leave(struct pt_regs *regs);
 
 extern void bad_trap_tl1(struct pt_regs *regs, long lvl);
 
-extern void do_fpe_common(struct pt_regs *regs);
 extern void do_fpieee(struct pt_regs *regs);
 extern void do_fpother(struct pt_regs *regs);
 extern void do_tof(struct pt_regs *regs);
diff --git a/arch/sparc/kernel/kgdb_64.c b/arch/sparc/kernel/kgdb_64.c
index 53c0a82e6030..60b19f50c80a 100644
--- a/arch/sparc/kernel/kgdb_64.c
+++ b/arch/sparc/kernel/kgdb_64.c
@@ -159,11 +159,12 @@ int kgdb_arch_handle_exception(int e_vector, int signo, int err_code,
 
 asmlinkage void kgdb_trap(unsigned long trap_level, struct pt_regs *regs)
 {
+	enum ctx_state prev_state = exception_enter();
 	unsigned long flags;
 
 	if (user_mode(regs)) {
 		bad_trap(regs, trap_level);
-		return;
+		goto out;
 	}
 
 	flushw_all();
@@ -171,6 +172,8 @@ asmlinkage void kgdb_trap(unsigned long trap_level, struct pt_regs *regs)
 	local_irq_save(flags);
 	kgdb_handle_exception(0x172, SIGTRAP, 0, regs);
 	local_irq_restore(flags);
+out:
+	exception_exit(prev_state);
 }
 
 int kgdb_arch_init(void)
diff --git a/arch/sparc/kernel/kprobes.c b/arch/sparc/kernel/kprobes.c
index e72212148d2a..5a09fd315e5f 100644
--- a/arch/sparc/kernel/kprobes.c
+++ b/arch/sparc/kernel/kprobes.c
@@ -8,6 +8,7 @@
 #include <linux/module.h>
 #include <linux/kdebug.h>
 #include <linux/slab.h>
+#include <linux/context_tracking.h>
 #include <asm/signal.h>
 #include <asm/cacheflush.h>
 #include <asm/uaccess.h>
@@ -418,12 +419,14 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
 asmlinkage void __kprobes kprobe_trap(unsigned long trap_level,
 				      struct pt_regs *regs)
 {
+	enum ctx_state prev_state = exception_enter();
+
 	BUG_ON(trap_level != 0x170 && trap_level != 0x171);
 
 	if (user_mode(regs)) {
 		local_irq_enable();
 		bad_trap(regs, trap_level);
-		return;
+		goto out;
 	}
 
 	/* trap_level == 0x170 --> ta 0x70
@@ -433,6 +436,8 @@ asmlinkage void __kprobes kprobe_trap(unsigned long trap_level,
 		       (trap_level == 0x170) ? "debug" : "debug_2",
 		       regs, 0, trap_level, SIGTRAP) != NOTIFY_STOP)
 		bad_trap(regs, trap_level);
+out:
+	exception_exit(prev_state);
 }
 
 /* Jprobes support.  */
diff --git a/arch/sparc/kernel/process_64.c b/arch/sparc/kernel/process_64.c
index baebab215492..32a280ec38c1 100644
--- a/arch/sparc/kernel/process_64.c
+++ b/arch/sparc/kernel/process_64.c
@@ -31,6 +31,7 @@
 #include <linux/elfcore.h>
 #include <linux/sysrq.h>
 #include <linux/nmi.h>
+#include <linux/context_tracking.h>
 
 #include <asm/uaccess.h>
 #include <asm/page.h>
@@ -557,6 +558,7 @@ void fault_in_user_windows(void)
 
 barf:
 	set_thread_wsaved(window + 1);
+	user_exit();
 	do_exit(SIGILL);
 }
 
diff --git a/arch/sparc/kernel/ptrace_64.c b/arch/sparc/kernel/ptrace_64.c
index 773c1f2983ce..c13c9f25d83a 100644
--- a/arch/sparc/kernel/ptrace_64.c
+++ b/arch/sparc/kernel/ptrace_64.c
@@ -27,6 +27,7 @@
 #include <trace/syscall.h>
 #include <linux/compat.h>
 #include <linux/elf.h>
+#include <linux/context_tracking.h>
 
 #include <asm/asi.h>
 #include <asm/pgtable.h>
@@ -1066,6 +1067,9 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
 	/* do the secure computing check first */
 	secure_computing_strict(regs->u_regs[UREG_G1]);
 
+	if (test_thread_flag(TIF_NOHZ))
+		user_exit();
+
 	if (test_thread_flag(TIF_SYSCALL_TRACE))
 		ret = tracehook_report_syscall_entry(regs);
 
@@ -1086,6 +1090,9 @@ asmlinkage int syscall_trace_enter(struct pt_regs *regs)
 
 asmlinkage void syscall_trace_leave(struct pt_regs *regs)
 {
+	if (test_thread_flag(TIF_NOHZ))
+		user_exit();
+
 	audit_syscall_exit(regs);
 
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
@@ -1093,4 +1100,7 @@ asmlinkage void syscall_trace_leave(struct pt_regs *regs)
 
 	if (test_thread_flag(TIF_SYSCALL_TRACE))
 		tracehook_report_syscall_exit(regs, 0);
+
+	if (test_thread_flag(TIF_NOHZ))
+		user_enter();
 }
diff --git a/arch/sparc/kernel/rtrap_64.S b/arch/sparc/kernel/rtrap_64.S
index afa2a9e3d0a0..a954eb81881b 100644
--- a/arch/sparc/kernel/rtrap_64.S
+++ b/arch/sparc/kernel/rtrap_64.S
@@ -18,10 +18,16 @@
 #define		RTRAP_PSTATE_IRQOFF	(PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV)
 #define		RTRAP_PSTATE_AG_IRQOFF	(PSTATE_TSO|PSTATE_PEF|PSTATE_PRIV|PSTATE_AG)
 
+#ifdef CONFIG_CONTEXT_TRACKING
+# define SCHEDULE_USER schedule_user
+#else
+# define SCHEDULE_USER schedule
+#endif
+
 		.text
 		.align			32
 __handle_preemption:
-		call			schedule
+		call			SCHEDULE_USER
 		 wrpr			%g0, RTRAP_PSTATE, %pstate
 		ba,pt			%xcc, __handle_preemption_continue
 		 wrpr			%g0, RTRAP_PSTATE_IRQOFF, %pstate
diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c
index 35923e8abd82..cd91d010e6d3 100644
--- a/arch/sparc/kernel/signal_64.c
+++ b/arch/sparc/kernel/signal_64.c
@@ -23,6 +23,7 @@
 #include <linux/tty.h>
 #include <linux/binfmts.h>
 #include <linux/bitops.h>
+#include <linux/context_tracking.h>
 
 #include <asm/uaccess.h>
 #include <asm/ptrace.h>
@@ -43,6 +44,7 @@ asmlinkage void sparc64_set_context(struct pt_regs *regs)
 {
 	struct ucontext __user *ucp = (struct ucontext __user *)
 		regs->u_regs[UREG_I0];
+	enum ctx_state prev_state = exception_enter();
 	mc_gregset_t __user *grp;
 	unsigned long pc, npc, tstate;
 	unsigned long fp, i7;
@@ -129,16 +131,19 @@ asmlinkage void sparc64_set_context(struct pt_regs *regs)
 	}
 	if (err)
 		goto do_sigsegv;
-
+out:
+	exception_exit(prev_state);
 	return;
 do_sigsegv:
 	force_sig(SIGSEGV, current);
+	goto out;
 }
 
 asmlinkage void sparc64_get_context(struct pt_regs *regs)
 {
 	struct ucontext __user *ucp = (struct ucontext __user *)
 		regs->u_regs[UREG_I0];
+	enum ctx_state prev_state = exception_enter();
 	mc_gregset_t __user *grp;
 	mcontext_t __user *mcp;
 	unsigned long fp, i7;
@@ -220,10 +225,12 @@ asmlinkage void sparc64_get_context(struct pt_regs *regs)
 	}
 	if (err)
 		goto do_sigsegv;
-
+out:
+	exception_exit(prev_state);
 	return;
 do_sigsegv:
 	force_sig(SIGSEGV, current);
+	goto out;
 }
 
 struct rt_signal_frame {
@@ -528,11 +535,13 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
 
 void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0, unsigned long thread_info_flags)
 {
+	user_exit();
 	if (thread_info_flags & _TIF_SIGPENDING)
 		do_signal(regs, orig_i0);
 	if (thread_info_flags & _TIF_NOTIFY_RESUME) {
 		clear_thread_flag(TIF_NOTIFY_RESUME);
 		tracehook_notify_resume(regs);
 	}
+	user_enter();
 }
 
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index d05eb9c1d846..beb0b5a5f21f 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -24,6 +24,7 @@
 #include <linux/personality.h>
 #include <linux/random.h>
 #include <linux/export.h>
+#include <linux/context_tracking.h>
 
 #include <asm/uaccess.h>
 #include <asm/utrap.h>
@@ -496,6 +497,7 @@ asmlinkage unsigned long c_sys_nis_syscall(struct pt_regs *regs)
 
 asmlinkage void sparc_breakpoint(struct pt_regs *regs)
 {
+	enum ctx_state prev_state = exception_enter();
 	siginfo_t info;
 
 	if (test_thread_flag(TIF_32BIT)) {
@@ -514,6 +516,7 @@ asmlinkage void sparc_breakpoint(struct pt_regs *regs)
 #ifdef DEBUG_SPARC_BREAKPOINT
 	printk ("TRAP: Returning to space: PC=%lx nPC=%lx\n", regs->tpc, regs->tnpc);
 #endif
+	exception_exit(prev_state);
 }
 
 extern void check_pending(int signum);
diff --git a/arch/sparc/kernel/syscalls.S b/arch/sparc/kernel/syscalls.S
index d950197a17e1..87729fff13b9 100644
--- a/arch/sparc/kernel/syscalls.S
+++ b/arch/sparc/kernel/syscalls.S
@@ -52,7 +52,7 @@ sys32_rt_sigreturn:
 #endif
 	.align	32
 1:	ldx	[%g6 + TI_FLAGS], %l5
-	andcc	%l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0
+	andcc	%l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
 	be,pt	%icc, rtrap
 	 nop
 	call	syscall_trace_leave
@@ -184,7 +184,7 @@ linux_sparc_syscall32:
 
 	srl	%i3, 0, %o3				! IEU0
 	srl	%i2, 0, %o2				! IEU0	Group
-	andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0
+	andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
 	bne,pn	%icc, linux_syscall_trace32		! CTI
 	 mov	%i0, %l5				! IEU1
 5:	call	%l7					! CTI	Group brk forced
@@ -207,7 +207,7 @@ linux_sparc_syscall:
 
 	mov	%i3, %o3				! IEU1
 	mov	%i4, %o4				! IEU0	Group
-	andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0
+	andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
 	bne,pn	%icc, linux_syscall_trace		! CTI	Group
 	 mov	%i0, %l5				! IEU0
 2:	call	%l7					! CTI	Group brk forced
@@ -223,7 +223,7 @@ ret_sys_call:
 
 	cmp	%o0, -ERESTART_RESTARTBLOCK
 	bgeu,pn	%xcc, 1f
-	 andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT), %g0
+	 andcc	%l0, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT|_TIF_SYSCALL_TRACEPOINT|_TIF_NOHZ), %g0
 	ldx	[%sp + PTREGS_OFF + PT_V9_TNPC], %l1 ! pc = npc
 
 2:
diff --git a/arch/sparc/kernel/traps_64.c b/arch/sparc/kernel/traps_64.c
index b3f833ab90eb..4ced92f05358 100644
--- a/arch/sparc/kernel/traps_64.c
+++ b/arch/sparc/kernel/traps_64.c
@@ -20,6 +20,7 @@
 #include <linux/ftrace.h>
 #include <linux/reboot.h>
 #include <linux/gfp.h>
+#include <linux/context_tracking.h>
 
 #include <asm/smp.h>
 #include <asm/delay.h>
@@ -186,11 +187,12 @@ EXPORT_SYMBOL_GPL(unregister_dimm_printer);
 
 void spitfire_insn_access_exception(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar)
 {
+	enum ctx_state prev_state = exception_enter();
 	siginfo_t info;
 
 	if (notify_die(DIE_TRAP, "instruction access exception", regs,
 		       0, 0x8, SIGTRAP) == NOTIFY_STOP)
-		return;
+		goto out;
 
 	if (regs->tstate & TSTATE_PRIV) {
 		printk("spitfire_insn_access_exception: SFSR[%016lx] "
@@ -207,6 +209,8 @@ void spitfire_insn_access_exception(struct pt_regs *regs, unsigned long sfsr, un
 	info.si_addr = (void __user *)regs->tpc;
 	info.si_trapno = 0;
 	force_sig_info(SIGSEGV, &info, current);
+out:
+	exception_exit(prev_state);
 }
 
 void spitfire_insn_access_exception_tl1(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar)
@@ -260,11 +264,12 @@ void sun4v_insn_access_exception_tl1(struct pt_regs *regs, unsigned long addr, u
 
 void spitfire_data_access_exception(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar)
 {
+	enum ctx_state prev_state = exception_enter();
 	siginfo_t info;
 
 	if (notify_die(DIE_TRAP, "data access exception", regs,
 		       0, 0x30, SIGTRAP) == NOTIFY_STOP)
-		return;
+		goto out;
 
 	if (regs->tstate & TSTATE_PRIV) {
 		/* Test if this comes from uaccess places. */
@@ -280,7 +285,7 @@ void spitfire_data_access_exception(struct pt_regs *regs, unsigned long sfsr, un
 #endif
 			regs->tpc = entry->fixup;
 			regs->tnpc = regs->tpc + 4;
-			return;
+			goto out;
 		}
 		/* Shit... */
 		printk("spitfire_data_access_exception: SFSR[%016lx] "
@@ -294,6 +299,8 @@ void spitfire_data_access_exception(struct pt_regs *regs, unsigned long sfsr, un
 	info.si_addr = (void __user *)sfar;
 	info.si_trapno = 0;
 	force_sig_info(SIGSEGV, &info, current);
+out:
+	exception_exit(prev_state);
 }
 
 void spitfire_data_access_exception_tl1(struct pt_regs *regs, unsigned long sfsr, unsigned long sfar)
@@ -1994,6 +2001,7 @@ static void sun4v_log_error(struct pt_regs *regs, struct sun4v_error_entry *ent,
  */
 void sun4v_resum_error(struct pt_regs *regs, unsigned long offset)
 {
+	enum ctx_state prev_state = exception_enter();
 	struct sun4v_error_entry *ent, local_copy;
 	struct trap_per_cpu *tb;
 	unsigned long paddr;
@@ -2022,12 +2030,14 @@ void sun4v_resum_error(struct pt_regs *regs, unsigned long offset)
 		pr_info("Shutdown request, %u seconds...\n",
 			local_copy.err_secs);
 		orderly_poweroff(true);
-		return;
+		goto out;
 	}
 
 	sun4v_log_error(regs, &local_copy, cpu,
 			KERN_ERR "RESUMABLE ERROR",
 			&sun4v_resum_oflow_cnt);
+out:
+	exception_exit(prev_state);
 }
 
 /* If we try to printk() we'll probably make matters worse, by trying
@@ -2152,7 +2162,7 @@ void hypervisor_tlbop_error_xcall(unsigned long err, unsigned long op)
 	       err, op);
 }
 
-void do_fpe_common(struct pt_regs *regs)
+static void do_fpe_common(struct pt_regs *regs)
 {
 	if (regs->tstate & TSTATE_PRIV) {
 		regs->tpc = regs->tnpc;
@@ -2188,23 +2198,28 @@ void do_fpe_common(struct pt_regs *regs)
 
 void do_fpieee(struct pt_regs *regs)
 {
+	enum ctx_state prev_state = exception_enter();
+
 	if (notify_die(DIE_TRAP, "fpu exception ieee", regs,
 		       0, 0x24, SIGFPE) == NOTIFY_STOP)
-		return;
+		goto out;
 
 	do_fpe_common(regs);
+out:
+	exception_exit(prev_state);
 }
 
 extern int do_mathemu(struct pt_regs *, struct fpustate *, bool);
 
 void do_fpother(struct pt_regs *regs)
 {
+	enum ctx_state prev_state = exception_enter();
 	struct fpustate *f = FPUSTATE;
 	int ret = 0;
 
 	if (notify_die(DIE_TRAP, "fpu exception other", regs,
 		       0, 0x25, SIGFPE) == NOTIFY_STOP)
-		return;
+		goto out;
 
 	switch ((current_thread_info()->xfsr[0] & 0x1c000)) {
 	case (2 << 14): /* unfinished_FPop */
@@ -2213,17 +2228,20 @@ void do_fpother(struct pt_regs *regs)
 		break;
 	}
 	if (ret)
-		return;
+		goto out;
 	do_fpe_common(regs);
+out:
+	exception_exit(prev_state);
 }
 
 void do_tof(struct pt_regs *regs)
 {
+	enum ctx_state prev_state = exception_enter();
 	siginfo_t info;
 
 	if (notify_die(DIE_TRAP, "tagged arithmetic overflow", regs,
 		       0, 0x26, SIGEMT) == NOTIFY_STOP)
-		return;
+		goto out;
 
 	if (regs->tstate & TSTATE_PRIV)
 		die_if_kernel("Penguin overflow trap from kernel mode", regs);
@@ -2237,15 +2255,18 @@ void do_tof(struct pt_regs *regs)
 	info.si_addr = (void __user *)regs->tpc;
 	info.si_trapno = 0;
 	force_sig_info(SIGEMT, &info, current);
+out:
+	exception_exit(prev_state);
 }
 
 void do_div0(struct pt_regs *regs)
 {
+	enum ctx_state prev_state = exception_enter();
 	siginfo_t info;
 
 	if (notify_die(DIE_TRAP, "integer division by zero", regs,
 		       0, 0x28, SIGFPE) == NOTIFY_STOP)
-		return;
+		goto out;
 
 	if (regs->tstate & TSTATE_PRIV)
 		die_if_kernel("TL0: Kernel divide by zero.", regs);
@@ -2259,6 +2280,8 @@ void do_div0(struct pt_regs *regs)
 	info.si_addr = (void __user *)regs->tpc;
 	info.si_trapno = 0;
 	force_sig_info(SIGFPE, &info, current);
+out:
+	exception_exit(prev_state);
 }
 
 static void instruction_dump(unsigned int *pc)
@@ -2415,6 +2438,7 @@ extern int handle_ldf_stq(u32 insn, struct pt_regs *regs);
 
 void do_illegal_instruction(struct pt_regs *regs)
 {
+	enum ctx_state prev_state = exception_enter();
 	unsigned long pc = regs->tpc;
 	unsigned long tstate = regs->tstate;
 	u32 insn;
@@ -2422,7 +2446,7 @@ void do_illegal_instruction(struct pt_regs *regs)
 
 	if (notify_die(DIE_TRAP, "illegal instruction", regs,
 		       0, 0x10, SIGILL) == NOTIFY_STOP)
-		return;
+		goto out;
 
 	if (tstate & TSTATE_PRIV)
 		die_if_kernel("Kernel illegal instruction", regs);
@@ -2431,14 +2455,14 @@ void do_illegal_instruction(struct pt_regs *regs)
 	if (get_user(insn, (u32 __user *) pc) != -EFAULT) {
 		if ((insn & 0xc1ffc000) == 0x81700000) /* POPC */ {
 			if (handle_popc(insn, regs))
-				return;
+				goto out;
 		} else if ((insn & 0xc1580000) == 0xc1100000) /* LDQ/STQ */ {
 			if (handle_ldf_stq(insn, regs))
-				return;
+				goto out;
 		} else if (tlb_type == hypervisor) {
 			if ((insn & VIS_OPCODE_MASK) == VIS_OPCODE_VAL) {
 				if (!vis_emul(regs, insn))
-					return;
+					goto out;
 			} else {
 				struct fpustate *f = FPUSTATE;
 
@@ -2448,7 +2472,7 @@ void do_illegal_instruction(struct pt_regs *regs)
 				 * Trap in the %fsr to unimplemented_FPop.
 				 */
 				if (do_mathemu(regs, f, true))
-					return;
+					goto out;
 			}
 		}
 	}
@@ -2458,21 +2482,24 @@ void do_illegal_instruction(struct pt_regs *regs)
 	info.si_addr = (void __user *)pc;
 	info.si_trapno = 0;
 	force_sig_info(SIGILL, &info, current);
+out:
+	exception_exit(prev_state);
 }
 
 extern void kernel_unaligned_trap(struct pt_regs *regs, unsigned int insn);
 
 void mem_address_unaligned(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr)
 {
+	enum ctx_state prev_state = exception_enter();
 	siginfo_t info;
 
 	if (notify_die(DIE_TRAP, "memory address unaligned", regs,
 		       0, 0x34, SIGSEGV) == NOTIFY_STOP)
-		return;
+		goto out;
 
 	if (regs->tstate & TSTATE_PRIV) {
 		kernel_unaligned_trap(regs, *((unsigned int *)regs->tpc));
-		return;
+		goto out;
 	}
 	info.si_signo = SIGBUS;
 	info.si_errno = 0;
@@ -2480,6 +2507,8 @@ void mem_address_unaligned(struct pt_regs *regs, unsigned long sfar, unsigned lo
 	info.si_addr = (void __user *)sfar;
 	info.si_trapno = 0;
 	force_sig_info(SIGBUS, &info, current);
+out:
+	exception_exit(prev_state);
 }
 
 void sun4v_do_mna(struct pt_regs *regs, unsigned long addr, unsigned long type_ctx)
@@ -2504,11 +2533,12 @@ void sun4v_do_mna(struct pt_regs *regs, unsigned long addr, unsigned long type_c
 
 void do_privop(struct pt_regs *regs)
 {
+	enum ctx_state prev_state = exception_enter();
 	siginfo_t info;
 
 	if (notify_die(DIE_TRAP, "privileged operation", regs,
 		       0, 0x11, SIGILL) == NOTIFY_STOP)
-		return;
+		goto out;
 
 	if (test_thread_flag(TIF_32BIT)) {
 		regs->tpc &= 0xffffffff;
@@ -2520,6 +2550,8 @@ void do_privop(struct pt_regs *regs)
 	info.si_addr = (void __user *)regs->tpc;
 	info.si_trapno = 0;
 	force_sig_info(SIGILL, &info, current);
+out:
+	exception_exit(prev_state);
 }
 
 void do_privact(struct pt_regs *regs)
@@ -2530,99 +2562,116 @@ void do_privact(struct pt_regs *regs)
 /* Trap level 1 stuff or other traps we should never see... */
 void do_cee(struct pt_regs *regs)
 {
+	exception_enter();
 	die_if_kernel("TL0: Cache Error Exception", regs);
 }
 
 void do_cee_tl1(struct pt_regs *regs)
 {
+	exception_enter();
 	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
 	die_if_kernel("TL1: Cache Error Exception", regs);
 }
 
 void do_dae_tl1(struct pt_regs *regs)
 {
+	exception_enter();
 	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
 	die_if_kernel("TL1: Data Access Exception", regs);
 }
 
 void do_iae_tl1(struct pt_regs *regs)
 {
+	exception_enter();
 	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
 	die_if_kernel("TL1: Instruction Access Exception", regs);
 }
 
 void do_div0_tl1(struct pt_regs *regs)
 {
+	exception_enter();
 	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
 	die_if_kernel("TL1: DIV0 Exception", regs);
 }
 
 void do_fpdis_tl1(struct pt_regs *regs)
 {
+	exception_enter();
 	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
 	die_if_kernel("TL1: FPU Disabled", regs);
 }
 
 void do_fpieee_tl1(struct pt_regs *regs)
 {
+	exception_enter();
 	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
 	die_if_kernel("TL1: FPU IEEE Exception", regs);
 }
 
 void do_fpother_tl1(struct pt_regs *regs)
 {
+	exception_enter();
 	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
 	die_if_kernel("TL1: FPU Other Exception", regs);
 }
 
 void do_ill_tl1(struct pt_regs *regs)
 {
+	exception_enter();
 	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
 	die_if_kernel("TL1: Illegal Instruction Exception", regs);
 }
 
 void do_irq_tl1(struct pt_regs *regs)
 {
+	exception_enter();
 	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
 	die_if_kernel("TL1: IRQ Exception", regs);
 }
 
 void do_lddfmna_tl1(struct pt_regs *regs)
 {
+	exception_enter();
 	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
 	die_if_kernel("TL1: LDDF Exception", regs);
 }
 
 void do_stdfmna_tl1(struct pt_regs *regs)
 {
+	exception_enter();
 	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
 	die_if_kernel("TL1: STDF Exception", regs);
 }
 
 void do_paw(struct pt_regs *regs)
 {
+	exception_enter();
 	die_if_kernel("TL0: Phys Watchpoint Exception", regs);
 }
 
 void do_paw_tl1(struct pt_regs *regs)
 {
+	exception_enter();
 	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
 	die_if_kernel("TL1: Phys Watchpoint Exception", regs);
 }
 
 void do_vaw(struct pt_regs *regs)
 {
+	exception_enter();
 	die_if_kernel("TL0: Virt Watchpoint Exception", regs);
 }
 
 void do_vaw_tl1(struct pt_regs *regs)
 {
+	exception_enter();
 	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
 	die_if_kernel("TL1: Virt Watchpoint Exception", regs);
 }
 
 void do_tof_tl1(struct pt_regs *regs)
 {
+	exception_enter();
 	dump_tl1_traplog((struct tl1_traplog *)(regs + 1));
 	die_if_kernel("TL1: Tag Overflow Exception", regs);
 }
diff --git a/arch/sparc/kernel/unaligned_64.c b/arch/sparc/kernel/unaligned_64.c
index 8201c25e7669..3c1a7cb31579 100644
--- a/arch/sparc/kernel/unaligned_64.c
+++ b/arch/sparc/kernel/unaligned_64.c
@@ -21,9 +21,12 @@
 #include <linux/bitops.h>
 #include <linux/perf_event.h>
 #include <linux/ratelimit.h>
+#include <linux/context_tracking.h>
 #include <asm/fpumacro.h>
 #include <asm/cacheflush.h>
 
+#include "entry.h"
+
 enum direction {
 	load,    /* ld, ldd, ldh, ldsh */
 	store,   /* st, std, sth, stsh */
@@ -418,9 +421,6 @@ int handle_popc(u32 insn, struct pt_regs *regs)
 
 extern void do_fpother(struct pt_regs *regs);
 extern void do_privact(struct pt_regs *regs);
-extern void spitfire_data_access_exception(struct pt_regs *regs,
-					   unsigned long sfsr,
-					   unsigned long sfar);
 extern void sun4v_data_access_exception(struct pt_regs *regs,
 					unsigned long addr,
 					unsigned long type_ctx);
@@ -578,6 +578,7 @@ void handle_ld_nf(u32 insn, struct pt_regs *regs)
 
 void handle_lddfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr)
 {
+	enum ctx_state prev_state = exception_enter();
 	unsigned long pc = regs->tpc;
 	unsigned long tstate = regs->tstate;
 	u32 insn;
@@ -632,13 +633,16 @@ daex:
 			sun4v_data_access_exception(regs, sfar, sfsr);
 		else
 			spitfire_data_access_exception(regs, sfsr, sfar);
-		return;
+		goto out;
 	}
 	advance(regs);
+out:
+	exception_exit(prev_state);
 }
 
 void handle_stdfmna(struct pt_regs *regs, unsigned long sfar, unsigned long sfsr)
 {
+	enum ctx_state prev_state = exception_enter();
 	unsigned long pc = regs->tpc;
 	unsigned long tstate = regs->tstate;
 	u32 insn;
@@ -680,7 +684,9 @@ daex:
 			sun4v_data_access_exception(regs, sfar, sfsr);
 		else
 			spitfire_data_access_exception(regs, sfsr, sfar);
-		return;
+		goto out;
 	}
 	advance(regs);
+out:
+	exception_exit(prev_state);
 }
diff --git a/arch/sparc/mm/fault_64.c b/arch/sparc/mm/fault_64.c
index 2ebec263d685..69bb818fdd79 100644
--- a/arch/sparc/mm/fault_64.c
+++ b/arch/sparc/mm/fault_64.c
@@ -21,6 +21,7 @@
 #include <linux/kprobes.h>
 #include <linux/kdebug.h>
 #include <linux/percpu.h>
+#include <linux/context_tracking.h>
 
 #include <asm/page.h>
 #include <asm/pgtable.h>
@@ -272,6 +273,7 @@ static void noinline __kprobes bogus_32bit_fault_address(struct pt_regs *regs,
 
 asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
 {
+	enum ctx_state prev_state = exception_enter();
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
 	unsigned int insn = 0;
@@ -282,7 +284,7 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
 	fault_code = get_thread_fault_code();
 
 	if (notify_page_fault(regs))
-		return;
+		goto exit_exception;
 
 	si_code = SEGV_MAPERR;
 	address = current_thread_info()->fault_address;
@@ -313,7 +315,7 @@ asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs)
 			/* Valid, no problems... */
 		} else {
 			bad_kernel_pc(regs, address);
-			return;
+			goto exit_exception;
 		}
 	} else
 		flags |= FAULT_FLAG_USER;
@@ -430,7 +432,7 @@ good_area:
 	fault = handle_mm_fault(mm, vma, address, flags);
 
 	if ((fault & VM_FAULT_RETRY) && fatal_signal_pending(current))
-		return;
+		goto exit_exception;
 
 	if (unlikely(fault & VM_FAULT_ERROR)) {
 		if (fault & VM_FAULT_OOM)
@@ -482,6 +484,8 @@ good_area:
 
 	}
 #endif
+exit_exception:
+	exception_exit(prev_state);
 	return;
 
 	/*
@@ -494,7 +498,7 @@ bad_area:
 
 handle_kernel_fault:
 	do_kernel_fault(regs, si_code, fault_code, insn, address);
-	return;
+	goto exit_exception;
 
 /*
  * We ran out of memory, or some other thing happened to us that made
@@ -505,7 +509,7 @@ out_of_memory:
 	up_read(&mm->mmap_sem);
 	if (!(regs->tstate & TSTATE_PRIV)) {
 		pagefault_out_of_memory();
-		return;
+		goto exit_exception;
 	}
 	goto handle_kernel_fault;
 
-- 
cgit 


From 58e48be72d675b53e57982fc5301ec1b2dbda280 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 9 Sep 2013 14:41:14 +0900
Subject: ide: pmac: Remove casting the return value which is a void pointer

Casting the return value which is a void pointer is redundant.
The conversion from void pointer to any other pointer type is
guaranteed by the C programming language.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/ide/pmac.c | 51 +++++++++++++++++----------------------------------
 1 file changed, 17 insertions(+), 34 deletions(-)

diff --git a/drivers/ide/pmac.c b/drivers/ide/pmac.c
index bf83d7bb6bc6..3dd130627726 100644
--- a/drivers/ide/pmac.c
+++ b/drivers/ide/pmac.c
@@ -416,8 +416,7 @@ static int pmac_ide_init_dma(ide_hwif_t *, const struct ide_port_info *);
 static void pmac_ide_apply_timings(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	pmac_ide_hwif_t *pmif =
-		(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
+	pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent);
 
 	if (drive->dn & 1)
 		writel(pmif->timings[1], PMAC_IDE_REG(IDE_TIMING_CONFIG));
@@ -434,8 +433,7 @@ static void pmac_ide_apply_timings(ide_drive_t *drive)
 static void pmac_ide_kauai_apply_timings(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	pmac_ide_hwif_t *pmif =
-		(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
+	pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent);
 
 	if (drive->dn & 1) {
 		writel(pmif->timings[1], PMAC_IDE_REG(IDE_KAUAI_PIO_CONFIG));
@@ -454,8 +452,7 @@ static void
 pmac_ide_do_update_timings(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	pmac_ide_hwif_t *pmif =
-		(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
+	pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent);
 
 	if (pmif->kind == controller_sh_ata6 ||
 	    pmif->kind == controller_un_ata6 ||
@@ -500,8 +497,7 @@ static void pmac_write_devctl(ide_hwif_t *hwif, u8 ctl)
  */
 static void pmac_ide_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive)
 {
-	pmac_ide_hwif_t *pmif =
-		(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
+	pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent);
 	const u8 pio = drive->pio_mode - XFER_PIO_0;
 	struct ide_timing *tim = ide_timing_find_mode(XFER_PIO_0 + pio);
 	u32 *timings, t;
@@ -781,8 +777,7 @@ set_timings_mdma(ide_drive_t *drive, int intf_type, u32 *timings, u32 *timings2,
 
 static void pmac_ide_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive)
 {
-	pmac_ide_hwif_t *pmif =
-		(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
+	pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent);
 	int ret = 0;
 	u32 *timings, *timings2, tl[2];
 	u8 unit = drive->dn & 1;
@@ -919,8 +914,7 @@ static int pmac_ide_do_resume(pmac_ide_hwif_t *pmif)
 
 static u8 pmac_ide_cable_detect(ide_hwif_t *hwif)
 {
-	pmac_ide_hwif_t *pmif =
-		(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
+	pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent);
 	struct device_node *np = pmif->node;
 	const char *cable = of_get_property(np, "cable-type", NULL);
 	struct device_node *root = of_find_node_by_path("/");
@@ -951,8 +945,7 @@ static u8 pmac_ide_cable_detect(ide_hwif_t *hwif)
 static void pmac_ide_init_dev(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	pmac_ide_hwif_t *pmif =
-		(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
+	pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent);
 
 	if (on_media_bay(pmif)) {
 		if (check_media_bay(pmif->mdev->media_bay) == MB_CD) {
@@ -1228,8 +1221,7 @@ out_free_pmif:
 static int
 pmac_ide_macio_suspend(struct macio_dev *mdev, pm_message_t mesg)
 {
-	pmac_ide_hwif_t *pmif =
-		(pmac_ide_hwif_t *)dev_get_drvdata(&mdev->ofdev.dev);
+	pmac_ide_hwif_t *pmif = dev_get_drvdata(&mdev->ofdev.dev);
 	int rc = 0;
 
 	if (mesg.event != mdev->ofdev.dev.power.power_state.event
@@ -1245,8 +1237,7 @@ pmac_ide_macio_suspend(struct macio_dev *mdev, pm_message_t mesg)
 static int
 pmac_ide_macio_resume(struct macio_dev *mdev)
 {
-	pmac_ide_hwif_t *pmif =
-		(pmac_ide_hwif_t *)dev_get_drvdata(&mdev->ofdev.dev);
+	pmac_ide_hwif_t *pmif = dev_get_drvdata(&mdev->ofdev.dev);
 	int rc = 0;
 
 	if (mdev->ofdev.dev.power.power_state.event != PM_EVENT_ON) {
@@ -1365,8 +1356,7 @@ pmac_ide_pci_resume(struct pci_dev *pdev)
 #ifdef CONFIG_PMAC_MEDIABAY
 static void pmac_ide_macio_mb_event(struct macio_dev* mdev, int mb_state)
 {
-	pmac_ide_hwif_t *pmif =
-		(pmac_ide_hwif_t *)dev_get_drvdata(&mdev->ofdev.dev);
+	pmac_ide_hwif_t *pmif = dev_get_drvdata(&mdev->ofdev.dev);
 
 	switch(mb_state) {
 	case MB_CD:
@@ -1468,8 +1458,7 @@ out:
 static int pmac_ide_build_dmatable(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	pmac_ide_hwif_t *pmif =
-		(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
+	pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent);
 	struct dbdma_cmd *table;
 	volatile struct dbdma_regs __iomem *dma = pmif->dma_regs;
 	struct scatterlist *sg;
@@ -1546,8 +1535,7 @@ static int pmac_ide_build_dmatable(ide_drive_t *drive, struct ide_cmd *cmd)
 static int pmac_ide_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	pmac_ide_hwif_t *pmif =
-		(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
+	pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent);
 	u8 unit = drive->dn & 1, ata4 = (pmif->kind == controller_kl_ata4);
 	u8 write = !!(cmd->tf_flags & IDE_TFLAG_WRITE);
 
@@ -1572,8 +1560,7 @@ static void
 pmac_ide_dma_start(ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	pmac_ide_hwif_t *pmif =
-		(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
+	pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent);
 	volatile struct dbdma_regs __iomem *dma;
 
 	dma = pmif->dma_regs;
@@ -1590,8 +1577,7 @@ static int
 pmac_ide_dma_end (ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	pmac_ide_hwif_t *pmif =
-		(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
+	pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent);
 	volatile struct dbdma_regs __iomem *dma = pmif->dma_regs;
 	u32 dstat;
 
@@ -1615,8 +1601,7 @@ static int
 pmac_ide_dma_test_irq (ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	pmac_ide_hwif_t *pmif =
-		(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
+	pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent);
 	volatile struct dbdma_regs __iomem *dma = pmif->dma_regs;
 	unsigned long status, timeout;
 
@@ -1670,8 +1655,7 @@ static void
 pmac_ide_dma_lost_irq (ide_drive_t *drive)
 {
 	ide_hwif_t *hwif = drive->hwif;
-	pmac_ide_hwif_t *pmif =
-		(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
+	pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent);
 	volatile struct dbdma_regs __iomem *dma = pmif->dma_regs;
 	unsigned long status = readl(&dma->status);
 
@@ -1693,8 +1677,7 @@ static const struct ide_dma_ops pmac_dma_ops = {
  */
 static int pmac_ide_init_dma(ide_hwif_t *hwif, const struct ide_port_info *d)
 {
-	pmac_ide_hwif_t *pmif =
-		(pmac_ide_hwif_t *)dev_get_drvdata(hwif->gendev.parent);
+	pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent);
 	struct pci_dev *dev = to_pci_dev(hwif->dev);
 
 	/* We won't need pci_dev if we switch to generic consistent
-- 
cgit 


From a6fd6063e76ecab6a93c3874d37a1b4cef2e578f Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 16 Sep 2013 13:58:47 +0900
Subject: ide: cs5536: use module_pci_driver()

Use module_pci_driver() macro which makes the code smaller and
simpler.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/ide/cs5536.c | 13 +------------
 1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/ide/cs5536.c b/drivers/ide/cs5536.c
index 24214ab60ac0..de9185db41d4 100644
--- a/drivers/ide/cs5536.c
+++ b/drivers/ide/cs5536.c
@@ -295,15 +295,7 @@ static struct pci_driver cs5536_pci_driver = {
 	.resume		= ide_pci_resume,
 };
 
-static int __init cs5536_init(void)
-{
-	return pci_register_driver(&cs5536_pci_driver);
-}
-
-static void __exit cs5536_exit(void)
-{
-	pci_unregister_driver(&cs5536_pci_driver);
-}
+module_pci_driver(cs5536_pci_driver);
 
 MODULE_AUTHOR("Martin K. Petersen, Bartlomiej Zolnierkiewicz");
 MODULE_DESCRIPTION("low-level driver for the CS5536 IDE controller");
@@ -312,6 +304,3 @@ MODULE_DEVICE_TABLE(pci, cs5536_pci_tbl);
 
 module_param_named(msr, use_msr, int, 0644);
 MODULE_PARM_DESC(msr, "Force using MSR to configure IDE function (Default: 0)");
-
-module_init(cs5536_init);
-module_exit(cs5536_exit);
-- 
cgit 


From c2f7d1e103ef1b5f3bd6a8a09aebf5eac7df4aca Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Mon, 23 Sep 2013 10:28:11 +0900
Subject: ide: pmac: remove unnecessary pci_set_drvdata()

The driver core clears the driver data to NULL after device_release
or on probe failure. Thus, it is not needed to manually clear the
device driver data to NULL.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/ide/pmac.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/ide/pmac.c b/drivers/ide/pmac.c
index 3dd130627726..2db803cd095c 100644
--- a/drivers/ide/pmac.c
+++ b/drivers/ide/pmac.c
@@ -1309,7 +1309,6 @@ static int pmac_ide_pci_attach(struct pci_dev *pdev,
 	rc = pmac_ide_setup_device(pmif, &hw);
 	if (rc != 0) {
 		/* The inteface is released to the common IDE layer */
-		pci_set_drvdata(pdev, NULL);
 		iounmap(base);
 		pci_release_regions(pdev);
 		kfree(pmif);
-- 
cgit 


From f69e515699d8e9b1c25dcfe1c4c6f435087495d2 Mon Sep 17 00:00:00 2001
From: Duncan Laurie <dlaurie@chromium.org>
Date: Wed, 13 Nov 2013 17:59:43 -0800
Subject: i915: Use 120MHz LVDS SSC clock for gen5/gen6/gen7

We had been using a DMI table workaround to select the right
frequency for devices, but this is fragile and must be updated
with every new platform.

Instead the default case when VBT is missing is changed to use
120MHz clock for LVDS SSC for these generations.

The docs for 2010-Core, SandyBridge, and IvyBridge all indicate
that the reference frequency for LVDS is 120MHz:

"2010 Core"
http://intellinuxgraphics.org/IHD_OS_Vol3_Part3r2.pdf
page 38
Reference Frequency: 120MHz for CRT and LVDS.  100MHz for the FDI.

"2011 SandyBridge"
http://intellinuxgraphics.org/documentation/SNB/IHD_OS_Vol3_Part3.pdf
page 33
Reference Frequency: 120MHz for CRT, HDMI, LVDS.  100MHz for the FDI.

"2012 IvyBridge"
http://intellinuxgraphics.org/documentation/IVB/IHD_OS_Vol3_Part4.pdf
page 27
Reference Frequency: 120 MHz for CRT, HDMI, LVDS, 100MHz for the FDI.

Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
[olof: Fixup for recent base, switched from if/else to single call]
Signed-off-by: Olof Johansson <olof@lixom.net>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/i915/intel_bios.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c
index 6dd622d733b9..e4fba39631a5 100644
--- a/drivers/gpu/drm/i915/intel_bios.c
+++ b/drivers/gpu/drm/i915/intel_bios.c
@@ -790,7 +790,12 @@ init_vbt_defaults(struct drm_i915_private *dev_priv)
 
 	/* Default to using SSC */
 	dev_priv->vbt.lvds_use_ssc = 1;
-	dev_priv->vbt.lvds_ssc_freq = intel_bios_ssc_frequency(dev, 1);
+	/*
+	 * Core/SandyBridge/IvyBridge use alternative (120MHz) reference
+	 * clock for LVDS.
+	 */
+	dev_priv->vbt.lvds_ssc_freq = intel_bios_ssc_frequency(dev,
+			!HAS_PCH_SPLIT(dev));
 	DRM_DEBUG_KMS("Set default to SSC at %dMHz\n", dev_priv->vbt.lvds_ssc_freq);
 
 	for (port = PORT_A; port < I915_MAX_PORTS; port++) {
-- 
cgit 


From ec715cacd53f63b21da3a9bc96a9bb4c527e25b1 Mon Sep 17 00:00:00 2001
From: Ben Myers <bpm@sgi.com>
Date: Fri, 8 Nov 2013 16:03:10 -0600
Subject: xfs: update maintainers

Add Dave as maintainer of XFS.

Signed-off-by: Ben Myers <bpm@sgi.com>
Reviewed-by: Ric Wheeler <rwheeler@redhat.com>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Alex Elder <elder@kernel.org>
---
 MAINTAINERS | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index e61c2e83fc2b..f067106af103 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -9387,8 +9387,8 @@ F:	drivers/xen/*swiotlb*
 
 XFS FILESYSTEM
 P:	Silicon Graphics Inc
+M:	Dave Chinner <dchinner@fromorbit.com>
 M:	Ben Myers <bpm@sgi.com>
-M:	Alex Elder <elder@kernel.org>
 M:	xfs@oss.sgi.com
 L:	xfs@oss.sgi.com
 W:	http://oss.sgi.com/projects/xfs
-- 
cgit 


From a0dce7f0ac66cdd5b653a3b059eb1382c2bdf8a0 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Thu, 14 Nov 2013 14:30:39 -0800
Subject: drivers/memstick/core/ms_block.c: fix spelling of
 MSB_RP_RECIVE_STATUS_REG

Cc: Maxim Levitsky <maximlevitsky@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/memstick/core/ms_block.c | 4 ++--
 drivers/memstick/core/ms_block.h | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/memstick/core/ms_block.c b/drivers/memstick/core/ms_block.c
index 9188ef5d677e..24f2f8473dee 100644
--- a/drivers/memstick/core/ms_block.c
+++ b/drivers/memstick/core/ms_block.c
@@ -401,10 +401,10 @@ again:
 			sizeof(struct ms_status_register)))
 			return 0;
 
-		msb->state = MSB_RP_RECIVE_STATUS_REG;
+		msb->state = MSB_RP_RECEIVE_STATUS_REG;
 		return 0;
 
-	case MSB_RP_RECIVE_STATUS_REG:
+	case MSB_RP_RECEIVE_STATUS_REG:
 		msb->regs.status = *(struct ms_status_register *)mrq->data;
 		msb->state = MSB_RP_SEND_OOB_READ;
 		/* fallthrough */
diff --git a/drivers/memstick/core/ms_block.h b/drivers/memstick/core/ms_block.h
index 96e637550988..c75198dbf139 100644
--- a/drivers/memstick/core/ms_block.h
+++ b/drivers/memstick/core/ms_block.h
@@ -223,7 +223,7 @@ enum msb_readpage_states {
 	MSB_RP_RECEIVE_INT_REQ_RESULT,
 
 	MSB_RP_SEND_READ_STATUS_REG,
-	MSB_RP_RECIVE_STATUS_REG,
+	MSB_RP_RECEIVE_STATUS_REG,
 
 	MSB_RP_SEND_OOB_READ,
 	MSB_RP_RECEIVE_OOB_READ,
-- 
cgit 


From b77d88d493b8fc7a4c2dadd3bb86d1dee2f53a56 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:30:40 -0800
Subject: mm: drop actor argument of do_generic_file_read()

There's only one caller of do_generic_file_read() and the only actor is
file_read_actor().  No reason to have a callback parameter.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/filemap.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/mm/filemap.c b/mm/filemap.c
index ae4846ff4849..b7749a92021c 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -1090,7 +1090,6 @@ static void shrink_readahead_size_eio(struct file *filp,
  * @filp:	the file to read
  * @ppos:	current file position
  * @desc:	read_descriptor
- * @actor:	read method
  *
  * This is a generic file read routine, and uses the
  * mapping->a_ops->readpage() function for the actual low-level stuff.
@@ -1099,7 +1098,7 @@ static void shrink_readahead_size_eio(struct file *filp,
  * of the logic when it comes to error handling etc.
  */
 static void do_generic_file_read(struct file *filp, loff_t *ppos,
-		read_descriptor_t *desc, read_actor_t actor)
+		read_descriptor_t *desc)
 {
 	struct address_space *mapping = filp->f_mapping;
 	struct inode *inode = mapping->host;
@@ -1200,13 +1199,14 @@ page_ok:
 		 * Ok, we have the page, and it's up-to-date, so
 		 * now we can copy it to user space...
 		 *
-		 * The actor routine returns how many bytes were actually used..
+		 * The file_read_actor routine returns how many bytes were
+		 * actually used..
 		 * NOTE! This may not be the same as how much of a user buffer
 		 * we filled up (we may be padding etc), so we can only update
 		 * "pos" here (the actor routine has to update the user buffer
 		 * pointers and the remaining count).
 		 */
-		ret = actor(desc, page, offset, nr);
+		ret = file_read_actor(desc, page, offset, nr);
 		offset += ret;
 		index += offset >> PAGE_CACHE_SHIFT;
 		offset &= ~PAGE_CACHE_MASK;
@@ -1479,7 +1479,7 @@ generic_file_aio_read(struct kiocb *iocb, const struct iovec *iov,
 		if (desc.count == 0)
 			continue;
 		desc.error = 0;
-		do_generic_file_read(filp, ppos, &desc, file_read_actor);
+		do_generic_file_read(filp, ppos, &desc);
 		retval += desc.written;
 		if (desc.error) {
 			retval = retval ?: desc.error;
-- 
cgit 


From e9bb18c7b95d4dcf8c7f0e14f920ca6f03109e75 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:30:42 -0800
Subject: mm: avoid increase sizeof(struct page) due to split page table lock

Alex Thorlton noticed that some massively threaded workloads work poorly,
if THP enabled.  This patchset fixes this by introducing split page table
lock for PMD tables.  hugetlbfs is not covered yet.

This patchset is based on work by Naoya Horiguchi.

: akpm result summary:
:
: THP off, v3.12-rc2: 18.059261877 seconds time elapsed
: THP off, patched:   16.768027318 seconds time elapsed
:
: THP on, v3.12-rc2:  42.162306788 seconds time elapsed
: THP on, patched:    8.397885779 seconds time elapsed
:
: HUGETLB, v3.12-rc2: 47.574936948 seconds time elapsed
: HUGETLB, patched:   19.447481153 seconds time elapsed

THP off, v3.12-rc2:
-------------------

 Performance counter stats for './thp_memscale -c 80 -b 512m' (5 runs):

    1037072.835207 task-clock                #   57.426 CPUs utilized            ( +-  3.59% )
            95,093 context-switches          #    0.092 K/sec                    ( +-  3.93% )
               140 cpu-migrations            #    0.000 K/sec                    ( +-  5.28% )
        10,000,550 page-faults               #    0.010 M/sec                    ( +-  0.00% )
 2,455,210,400,261 cycles                    #    2.367 GHz                      ( +-  3.62% ) [83.33%]
 2,429,281,882,056 stalled-cycles-frontend   #   98.94% frontend cycles idle     ( +-  3.67% ) [83.33%]
 1,975,960,019,659 stalled-cycles-backend    #   80.48% backend  cycles idle     ( +-  3.88% ) [66.68%]
    46,503,296,013 instructions              #    0.02  insns per cycle
                                             #   52.24  stalled cycles per insn  ( +-  3.21% ) [83.34%]
     9,278,997,542 branches                  #    8.947 M/sec                    ( +-  4.00% ) [83.34%]
        89,881,640 branch-misses             #    0.97% of all branches          ( +-  1.17% ) [83.33%]

      18.059261877 seconds time elapsed                                          ( +-  2.65% )

THP on, v3.12-rc2:
------------------

 Performance counter stats for './thp_memscale -c 80 -b 512m' (5 runs):

    3114745.395974 task-clock                #   73.875 CPUs utilized            ( +-  1.84% )
           267,356 context-switches          #    0.086 K/sec                    ( +-  1.84% )
                99 cpu-migrations            #    0.000 K/sec                    ( +-  1.40% )
            58,313 page-faults               #    0.019 K/sec                    ( +-  0.28% )
 7,416,635,817,510 cycles                    #    2.381 GHz                      ( +-  1.83% ) [83.33%]
 7,342,619,196,993 stalled-cycles-frontend   #   99.00% frontend cycles idle     ( +-  1.88% ) [83.33%]
 6,267,671,641,967 stalled-cycles-backend    #   84.51% backend  cycles idle     ( +-  2.03% ) [66.67%]
   117,819,935,165 instructions              #    0.02  insns per cycle
                                             #   62.32  stalled cycles per insn  ( +-  4.39% ) [83.34%]
    28,899,314,777 branches                  #    9.278 M/sec                    ( +-  4.48% ) [83.34%]
        71,787,032 branch-misses             #    0.25% of all branches          ( +-  1.03% ) [83.33%]

      42.162306788 seconds time elapsed                                          ( +-  1.73% )

HUGETLB, v3.12-rc2:
-------------------

 Performance counter stats for './thp_memscale_hugetlbfs -c 80 -b 512M' (5 runs):

    2588052.787264 task-clock                #   54.400 CPUs utilized            ( +-  3.69% )
           246,831 context-switches          #    0.095 K/sec                    ( +-  4.15% )
               138 cpu-migrations            #    0.000 K/sec                    ( +-  5.30% )
            21,027 page-faults               #    0.008 K/sec                    ( +-  0.01% )
 6,166,666,307,263 cycles                    #    2.383 GHz                      ( +-  3.68% ) [83.33%]
 6,086,008,929,407 stalled-cycles-frontend   #   98.69% frontend cycles idle     ( +-  3.77% ) [83.33%]
 5,087,874,435,481 stalled-cycles-backend    #   82.51% backend  cycles idle     ( +-  4.41% ) [66.67%]
   133,782,831,249 instructions              #    0.02  insns per cycle
                                             #   45.49  stalled cycles per insn  ( +-  4.30% ) [83.34%]
    34,026,870,541 branches                  #   13.148 M/sec                    ( +-  4.24% ) [83.34%]
        68,670,942 branch-misses             #    0.20% of all branches          ( +-  3.26% ) [83.33%]

      47.574936948 seconds time elapsed                                          ( +-  2.09% )

THP off, patched:
-----------------

 Performance counter stats for './thp_memscale -c 80 -b 512m' (5 runs):

     943301.957892 task-clock                #   56.256 CPUs utilized            ( +-  3.01% )
            86,218 context-switches          #    0.091 K/sec                    ( +-  3.17% )
               121 cpu-migrations            #    0.000 K/sec                    ( +-  6.64% )
        10,000,551 page-faults               #    0.011 M/sec                    ( +-  0.00% )
 2,230,462,457,654 cycles                    #    2.365 GHz                      ( +-  3.04% ) [83.32%]
 2,204,616,385,805 stalled-cycles-frontend   #   98.84% frontend cycles idle     ( +-  3.09% ) [83.32%]
 1,778,640,046,926 stalled-cycles-backend    #   79.74% backend  cycles idle     ( +-  3.47% ) [66.69%]
    45,995,472,617 instructions              #    0.02  insns per cycle
                                             #   47.93  stalled cycles per insn  ( +-  2.51% ) [83.34%]
     9,179,700,174 branches                  #    9.731 M/sec                    ( +-  3.04% ) [83.35%]
        89,166,529 branch-misses             #    0.97% of all branches          ( +-  1.45% ) [83.33%]

      16.768027318 seconds time elapsed                                          ( +-  2.47% )

THP on, patched:
----------------

 Performance counter stats for './thp_memscale -c 80 -b 512m' (5 runs):

     458793.837905 task-clock                #   54.632 CPUs utilized            ( +-  0.79% )
            41,831 context-switches          #    0.091 K/sec                    ( +-  0.97% )
                98 cpu-migrations            #    0.000 K/sec                    ( +-  1.66% )
            57,829 page-faults               #    0.126 K/sec                    ( +-  0.62% )
 1,077,543,336,716 cycles                    #    2.349 GHz                      ( +-  0.81% ) [83.33%]
 1,067,403,802,964 stalled-cycles-frontend   #   99.06% frontend cycles idle     ( +-  0.87% ) [83.33%]
   864,764,616,143 stalled-cycles-backend    #   80.25% backend  cycles idle     ( +-  0.73% ) [66.68%]
    16,129,177,440 instructions              #    0.01  insns per cycle
                                             #   66.18  stalled cycles per insn  ( +-  7.94% ) [83.35%]
     3,618,938,569 branches                  #    7.888 M/sec                    ( +-  8.46% ) [83.36%]
        33,242,032 branch-misses             #    0.92% of all branches          ( +-  2.02% ) [83.32%]

       8.397885779 seconds time elapsed                                          ( +-  0.18% )

HUGETLB, patched:
-----------------

 Performance counter stats for './thp_memscale_hugetlbfs -c 80 -b 512M' (5 runs):

     395353.076837 task-clock                #   20.329 CPUs utilized            ( +-  8.16% )
            55,730 context-switches          #    0.141 K/sec                    ( +-  5.31% )
               138 cpu-migrations            #    0.000 K/sec                    ( +-  4.24% )
            21,027 page-faults               #    0.053 K/sec                    ( +-  0.00% )
   930,219,717,244 cycles                    #    2.353 GHz                      ( +-  8.21% ) [83.32%]
   914,295,694,103 stalled-cycles-frontend   #   98.29% frontend cycles idle     ( +-  8.35% ) [83.33%]
   704,137,950,187 stalled-cycles-backend    #   75.70% backend  cycles idle     ( +-  9.16% ) [66.69%]
    30,541,538,385 instructions              #    0.03  insns per cycle
                                             #   29.94  stalled cycles per insn  ( +-  3.98% ) [83.35%]
     8,415,376,631 branches                  #   21.286 M/sec                    ( +-  3.61% ) [83.36%]
        32,645,478 branch-misses             #    0.39% of all branches          ( +-  3.41% ) [83.32%]

      19.447481153 seconds time elapsed                                          ( +-  2.00% )

This patch (of 11):

CONFIG_GENERIC_LOCKBREAK increases sizeof(spinlock_t) to 8 bytes.  It
leads to increase sizeof(struct page) by 4 bytes on 32-bit system if split
page table lock is in use, since page->ptl shares space in union with
longs and pointers.

Let's disable split page table lock on 32-bit systems with
GENERIC_LOCKBREAK enabled.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Alex Thorlton <athorlton@sgi.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: "Eric W . Biederman" <ebiederm@xmission.com>
Cc: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Dave Jones <davej@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/mm/Kconfig b/mm/Kconfig
index 3f4ffda152bb..c28d247e524a 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -219,6 +219,7 @@ config SPLIT_PTLOCK_CPUS
 	default "999999" if ARM && !CPU_CACHE_VIPT
 	default "999999" if PARISC && !PA20
 	default "999999" if DEBUG_SPINLOCK || DEBUG_LOCK_ALLOC
+	default "999999" if !64BIT && GENERIC_LOCKBREAK
 	default "4"
 
 #
-- 
cgit 


From 57c1ffcefb5acb3c8b5f8436c325a6bdbd8e9c78 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:30:45 -0800
Subject: mm: rename USE_SPLIT_PTLOCKS to USE_SPLIT_PTE_PTLOCKS

We're going to introduce split page table lock for PMD level.  Let's
rename existing split ptlock for PTE level to avoid confusion.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Tested-by: Alex Thorlton <athorlton@sgi.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: "Eric W . Biederman" <ebiederm@xmission.com>
Cc: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Dave Jones <davej@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/arm/mm/fault-armv.c | 6 +++---
 arch/x86/xen/mmu.c       | 6 +++---
 include/linux/mm.h       | 6 +++---
 include/linux/mm_types.h | 8 ++++----
 4 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/arch/arm/mm/fault-armv.c b/arch/arm/mm/fault-armv.c
index 2a5907b5c8d2..ff379ac115df 100644
--- a/arch/arm/mm/fault-armv.c
+++ b/arch/arm/mm/fault-armv.c
@@ -65,7 +65,7 @@ static int do_adjust_pte(struct vm_area_struct *vma, unsigned long address,
 	return ret;
 }
 
-#if USE_SPLIT_PTLOCKS
+#if USE_SPLIT_PTE_PTLOCKS
 /*
  * If we are using split PTE locks, then we need to take the page
  * lock here.  Otherwise we are using shared mm->page_table_lock
@@ -84,10 +84,10 @@ static inline void do_pte_unlock(spinlock_t *ptl)
 {
 	spin_unlock(ptl);
 }
-#else /* !USE_SPLIT_PTLOCKS */
+#else /* !USE_SPLIT_PTE_PTLOCKS */
 static inline void do_pte_lock(spinlock_t *ptl) {}
 static inline void do_pte_unlock(spinlock_t *ptl) {}
-#endif /* USE_SPLIT_PTLOCKS */
+#endif /* USE_SPLIT_PTE_PTLOCKS */
 
 static int adjust_pte(struct vm_area_struct *vma, unsigned long address,
 	unsigned long pfn)
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index fdc3ba28ca38..455c873ce009 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -796,7 +796,7 @@ static spinlock_t *xen_pte_lock(struct page *page, struct mm_struct *mm)
 {
 	spinlock_t *ptl = NULL;
 
-#if USE_SPLIT_PTLOCKS
+#if USE_SPLIT_PTE_PTLOCKS
 	ptl = __pte_lockptr(page);
 	spin_lock_nest_lock(ptl, &mm->page_table_lock);
 #endif
@@ -1637,7 +1637,7 @@ static inline void xen_alloc_ptpage(struct mm_struct *mm, unsigned long pfn,
 
 			__set_pfn_prot(pfn, PAGE_KERNEL_RO);
 
-			if (level == PT_PTE && USE_SPLIT_PTLOCKS)
+			if (level == PT_PTE && USE_SPLIT_PTE_PTLOCKS)
 				__pin_pagetable_pfn(MMUEXT_PIN_L1_TABLE, pfn);
 
 			xen_mc_issue(PARAVIRT_LAZY_MMU);
@@ -1671,7 +1671,7 @@ static inline void xen_release_ptpage(unsigned long pfn, unsigned level)
 		if (!PageHighMem(page)) {
 			xen_mc_batch();
 
-			if (level == PT_PTE && USE_SPLIT_PTLOCKS)
+			if (level == PT_PTE && USE_SPLIT_PTE_PTLOCKS)
 				__pin_pagetable_pfn(MMUEXT_UNPIN_TABLE, pfn);
 
 			__set_pfn_prot(pfn, PAGE_KERNEL);
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 42a35d94b82c..dc3333d6c986 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1316,7 +1316,7 @@ static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long a
 }
 #endif /* CONFIG_MMU && !__ARCH_HAS_4LEVEL_HACK */
 
-#if USE_SPLIT_PTLOCKS
+#if USE_SPLIT_PTE_PTLOCKS
 /*
  * We tuck a spinlock to guard each pagetable page into its struct page,
  * at page->private, with BUILD_BUG_ON to make sure that this will not
@@ -1329,14 +1329,14 @@ static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long a
 } while (0)
 #define pte_lock_deinit(page)	((page)->mapping = NULL)
 #define pte_lockptr(mm, pmd)	({(void)(mm); __pte_lockptr(pmd_page(*(pmd)));})
-#else	/* !USE_SPLIT_PTLOCKS */
+#else	/* !USE_SPLIT_PTE_PTLOCKS */
 /*
  * We use mm->page_table_lock to guard all pagetable pages of the mm.
  */
 #define pte_lock_init(page)	do {} while (0)
 #define pte_lock_deinit(page)	do {} while (0)
 #define pte_lockptr(mm, pmd)	({(void)(pmd); &(mm)->page_table_lock;})
-#endif /* USE_SPLIT_PTLOCKS */
+#endif /* USE_SPLIT_PTE_PTLOCKS */
 
 static inline void pgtable_page_ctor(struct page *page)
 {
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index a3198e5aaf4e..f1ff66dfa79e 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -23,7 +23,7 @@
 
 struct address_space;
 
-#define USE_SPLIT_PTLOCKS	(NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS)
+#define USE_SPLIT_PTE_PTLOCKS	(NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS)
 
 /*
  * Each physical page in the system has a struct page associated with
@@ -141,7 +141,7 @@ struct page {
 						 * indicates order in the buddy
 						 * system if PG_buddy is set.
 						 */
-#if USE_SPLIT_PTLOCKS
+#if USE_SPLIT_PTE_PTLOCKS
 		spinlock_t ptl;
 #endif
 		struct kmem_cache *slab_cache;	/* SL[AU]B: Pointer to slab */
@@ -309,14 +309,14 @@ enum {
 	NR_MM_COUNTERS
 };
 
-#if USE_SPLIT_PTLOCKS && defined(CONFIG_MMU)
+#if USE_SPLIT_PTE_PTLOCKS && defined(CONFIG_MMU)
 #define SPLIT_RSS_COUNTING
 /* per-thread cached information, */
 struct task_rss_stat {
 	int events;	/* for synchronization threshold */
 	int count[NR_MM_COUNTERS];
 };
-#endif /* USE_SPLIT_PTLOCKS */
+#endif /* USE_SPLIT_PTE_PTLOCKS */
 
 struct mm_rss_stat {
 	atomic_long_t count[NR_MM_COUNTERS];
-- 
cgit 


From e1f56c89b040134add93f686931cc266541d239a Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:30:48 -0800
Subject: mm: convert mm->nr_ptes to atomic_long_t

With split page table lock for PMD level we can't hold mm->page_table_lock
while updating nr_ptes.

Let's convert it to atomic_long_t to avoid races.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Tested-by: Alex Thorlton <athorlton@sgi.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: "Eric W . Biederman" <ebiederm@xmission.com>
Cc: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Dave Jones <davej@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/proc/task_mmu.c       |  3 ++-
 include/linux/mm_types.h |  2 +-
 kernel/fork.c            |  2 +-
 mm/huge_memory.c         | 10 +++++-----
 mm/memory.c              |  4 ++--
 mm/mmap.c                |  3 ++-
 mm/oom_kill.c            |  6 +++---
 7 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index abbe825d20ff..8faaebdc6b02 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -62,7 +62,8 @@ void task_mem(struct seq_file *m, struct mm_struct *mm)
 		total_rss << (PAGE_SHIFT-10),
 		data << (PAGE_SHIFT-10),
 		mm->stack_vm << (PAGE_SHIFT-10), text, lib,
-		(PTRS_PER_PTE*sizeof(pte_t)*mm->nr_ptes) >> 10,
+		(PTRS_PER_PTE * sizeof(pte_t) *
+		 atomic_long_read(&mm->nr_ptes)) >> 10,
 		swap << (PAGE_SHIFT-10));
 }
 
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index f1ff66dfa79e..566df579c51f 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -339,6 +339,7 @@ struct mm_struct {
 	pgd_t * pgd;
 	atomic_t mm_users;			/* How many users with user space? */
 	atomic_t mm_count;			/* How many references to "struct mm_struct" (users count as 1) */
+	atomic_long_t nr_ptes;			/* Page table pages */
 	int map_count;				/* number of VMAs */
 
 	spinlock_t page_table_lock;		/* Protects page tables and some counters */
@@ -360,7 +361,6 @@ struct mm_struct {
 	unsigned long exec_vm;		/* VM_EXEC & ~VM_WRITE */
 	unsigned long stack_vm;		/* VM_GROWSUP/DOWN */
 	unsigned long def_flags;
-	unsigned long nr_ptes;		/* Page table pages */
 	unsigned long start_code, end_code, start_data, end_data;
 	unsigned long start_brk, brk, start_stack;
 	unsigned long arg_start, arg_end, env_start, env_end;
diff --git a/kernel/fork.c b/kernel/fork.c
index f6d11fc67f72..e2520756e005 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -532,7 +532,7 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p)
 	mm->flags = (current->mm) ?
 		(current->mm->flags & MMF_INIT_MASK) : default_dump_filter;
 	mm->core_state = NULL;
-	mm->nr_ptes = 0;
+	atomic_long_set(&mm->nr_ptes, 0);
 	memset(&mm->rss_stat, 0, sizeof(mm->rss_stat));
 	spin_lock_init(&mm->page_table_lock);
 	mm_init_aio(mm);
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 0556c6a44959..e5b2d316be2e 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -738,7 +738,7 @@ static int __do_huge_pmd_anonymous_page(struct mm_struct *mm,
 		pgtable_trans_huge_deposit(mm, pmd, pgtable);
 		set_pmd_at(mm, haddr, pmd, entry);
 		add_mm_counter(mm, MM_ANONPAGES, HPAGE_PMD_NR);
-		mm->nr_ptes++;
+		atomic_long_inc(&mm->nr_ptes);
 		spin_unlock(&mm->page_table_lock);
 	}
 
@@ -771,7 +771,7 @@ static bool set_huge_zero_page(pgtable_t pgtable, struct mm_struct *mm,
 	entry = pmd_mkhuge(entry);
 	pgtable_trans_huge_deposit(mm, pmd, pgtable);
 	set_pmd_at(mm, haddr, pmd, entry);
-	mm->nr_ptes++;
+	atomic_long_inc(&mm->nr_ptes);
 	return true;
 }
 
@@ -896,7 +896,7 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 	pmd = pmd_mkold(pmd_wrprotect(pmd));
 	pgtable_trans_huge_deposit(dst_mm, dst_pmd, pgtable);
 	set_pmd_at(dst_mm, addr, dst_pmd, pmd);
-	dst_mm->nr_ptes++;
+	atomic_long_inc(&dst_mm->nr_ptes);
 
 	ret = 0;
 out_unlock:
@@ -1392,7 +1392,7 @@ int zap_huge_pmd(struct mmu_gather *tlb, struct vm_area_struct *vma,
 		tlb_remove_pmd_tlb_entry(tlb, pmd, addr);
 		pgtable = pgtable_trans_huge_withdraw(tlb->mm, pmd);
 		if (is_huge_zero_pmd(orig_pmd)) {
-			tlb->mm->nr_ptes--;
+			atomic_long_dec(&tlb->mm->nr_ptes);
 			spin_unlock(&tlb->mm->page_table_lock);
 			put_huge_zero_page();
 		} else {
@@ -1401,7 +1401,7 @@ int zap_huge_pmd(struct mmu_gather *tlb, struct vm_area_struct *vma,
 			VM_BUG_ON(page_mapcount(page) < 0);
 			add_mm_counter(tlb->mm, MM_ANONPAGES, -HPAGE_PMD_NR);
 			VM_BUG_ON(!PageHead(page));
-			tlb->mm->nr_ptes--;
+			atomic_long_dec(&tlb->mm->nr_ptes);
 			spin_unlock(&tlb->mm->page_table_lock);
 			tlb_remove_page(tlb, page);
 		}
diff --git a/mm/memory.c b/mm/memory.c
index bf8665849a5f..0b5a93a49f27 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -382,7 +382,7 @@ static void free_pte_range(struct mmu_gather *tlb, pmd_t *pmd,
 	pgtable_t token = pmd_pgtable(*pmd);
 	pmd_clear(pmd);
 	pte_free_tlb(tlb, token, addr);
-	tlb->mm->nr_ptes--;
+	atomic_long_dec(&tlb->mm->nr_ptes);
 }
 
 static inline void free_pmd_range(struct mmu_gather *tlb, pud_t *pud,
@@ -573,7 +573,7 @@ int __pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma,
 	spin_lock(&mm->page_table_lock);
 	wait_split_huge_page = 0;
 	if (likely(pmd_none(*pmd))) {	/* Has another populated it ? */
-		mm->nr_ptes++;
+		atomic_long_inc(&mm->nr_ptes);
 		pmd_populate(mm, pmd, new);
 		new = NULL;
 	} else if (unlikely(pmd_trans_splitting(*pmd)))
diff --git a/mm/mmap.c b/mm/mmap.c
index 5a6baddde15d..834b2d785f1e 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -2724,7 +2724,8 @@ void exit_mmap(struct mm_struct *mm)
 	}
 	vm_unacct_memory(nr_accounted);
 
-	WARN_ON(mm->nr_ptes > (FIRST_USER_ADDRESS+PMD_SIZE-1)>>PMD_SHIFT);
+	WARN_ON(atomic_long_read(&mm->nr_ptes) >
+			(FIRST_USER_ADDRESS+PMD_SIZE-1)>>PMD_SHIFT);
 }
 
 /* Insert vm structure into process list sorted by address
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index 6738c47f1f72..1e4a600a6163 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -161,7 +161,7 @@ unsigned long oom_badness(struct task_struct *p, struct mem_cgroup *memcg,
 	 * The baseline for the badness score is the proportion of RAM that each
 	 * task's rss, pagetable and swap space use.
 	 */
-	points = get_mm_rss(p->mm) + p->mm->nr_ptes +
+	points = get_mm_rss(p->mm) + atomic_long_read(&p->mm->nr_ptes) +
 		 get_mm_counter(p->mm, MM_SWAPENTS);
 	task_unlock(p);
 
@@ -364,10 +364,10 @@ static void dump_tasks(const struct mem_cgroup *memcg, const nodemask_t *nodemas
 			continue;
 		}
 
-		pr_info("[%5d] %5d %5d %8lu %8lu %7lu %8lu         %5hd %s\n",
+		pr_info("[%5d] %5d %5d %8lu %8lu %7ld %8lu         %5hd %s\n",
 			task->pid, from_kuid(&init_user_ns, task_uid(task)),
 			task->tgid, task->mm->total_vm, get_mm_rss(task->mm),
-			task->mm->nr_ptes,
+			atomic_long_read(&task->mm->nr_ptes),
 			get_mm_counter(task->mm, MM_SWAPENTS),
 			task->signal->oom_score_adj, task->comm);
 		task_unlock(task);
-- 
cgit 


From 9a86cb7bdc4ccbe3f99a1ca275b90a322a90f9ce Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:30:51 -0800
Subject: mm: introduce api for split page table lock for PMD level

Basic api, backed by mm->page_table_lock for now. Actual implementation
will be added later.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Tested-by: Alex Thorlton <athorlton@sgi.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "Eric W . Biederman" <ebiederm@xmission.com>
Cc: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Dave Jones <davej@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/mm.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index dc3333d6c986..4f4ca41fcf27 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1378,6 +1378,19 @@ static inline void pgtable_page_dtor(struct page *page)
 	((unlikely(pmd_none(*(pmd))) && __pte_alloc_kernel(pmd, address))? \
 		NULL: pte_offset_kernel(pmd, address))
 
+static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd)
+{
+	return &mm->page_table_lock;
+}
+
+
+static inline spinlock_t *pmd_lock(struct mm_struct *mm, pmd_t *pmd)
+{
+	spinlock_t *ptl = pmd_lockptr(mm, pmd);
+	spin_lock(ptl);
+	return ptl;
+}
+
 extern void free_area_init(unsigned long * zones_size);
 extern void free_area_init_node(int nid, unsigned long * zones_size,
 		unsigned long zone_start_pfn, unsigned long *zholes_size);
-- 
cgit 


From bf929152e9f6c49b66fad4ebf08cc95b02ce48f5 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:30:54 -0800
Subject: mm, thp: change pmd_trans_huge_lock() to return taken lock

With split ptlock it's important to know which lock
pmd_trans_huge_lock() took.  This patch adds one more parameter to the
function to return the lock.

In most places migration to new api is trivial.  Exception is
move_huge_pmd(): we need to take two locks if pmd tables are different.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Tested-by: Alex Thorlton <athorlton@sgi.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "Eric W . Biederman" <ebiederm@xmission.com>
Cc: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Dave Jones <davej@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/proc/task_mmu.c      | 13 +++++++------
 include/linux/huge_mm.h | 14 +++++++-------
 mm/huge_memory.c        | 40 +++++++++++++++++++++++++++-------------
 mm/memcontrol.c         | 10 +++++-----
 4 files changed, 46 insertions(+), 31 deletions(-)

diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 8faaebdc6b02..42b5cf5d0326 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -506,9 +506,9 @@ static int smaps_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
 	pte_t *pte;
 	spinlock_t *ptl;
 
-	if (pmd_trans_huge_lock(pmd, vma) == 1) {
+	if (pmd_trans_huge_lock(pmd, vma, &ptl) == 1) {
 		smaps_pte_entry(*(pte_t *)pmd, addr, HPAGE_PMD_SIZE, walk);
-		spin_unlock(&walk->mm->page_table_lock);
+		spin_unlock(ptl);
 		mss->anonymous_thp += HPAGE_PMD_SIZE;
 		return 0;
 	}
@@ -999,13 +999,14 @@ static int pagemap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
 {
 	struct vm_area_struct *vma;
 	struct pagemapread *pm = walk->private;
+	spinlock_t *ptl;
 	pte_t *pte;
 	int err = 0;
 	pagemap_entry_t pme = make_pme(PM_NOT_PRESENT(pm->v2));
 
 	/* find the first VMA at or above 'addr' */
 	vma = find_vma(walk->mm, addr);
-	if (vma && pmd_trans_huge_lock(pmd, vma) == 1) {
+	if (vma && pmd_trans_huge_lock(pmd, vma, &ptl) == 1) {
 		int pmd_flags2;
 
 		if ((vma->vm_flags & VM_SOFTDIRTY) || pmd_soft_dirty(*pmd))
@@ -1023,7 +1024,7 @@ static int pagemap_pte_range(pmd_t *pmd, unsigned long addr, unsigned long end,
 			if (err)
 				break;
 		}
-		spin_unlock(&walk->mm->page_table_lock);
+		spin_unlock(ptl);
 		return err;
 	}
 
@@ -1325,7 +1326,7 @@ static int gather_pte_stats(pmd_t *pmd, unsigned long addr,
 
 	md = walk->private;
 
-	if (pmd_trans_huge_lock(pmd, md->vma) == 1) {
+	if (pmd_trans_huge_lock(pmd, md->vma, &ptl) == 1) {
 		pte_t huge_pte = *(pte_t *)pmd;
 		struct page *page;
 
@@ -1333,7 +1334,7 @@ static int gather_pte_stats(pmd_t *pmd, unsigned long addr,
 		if (page)
 			gather_stats(page, md, pte_dirty(huge_pte),
 				     HPAGE_PMD_SIZE/PAGE_SIZE);
-		spin_unlock(&walk->mm->page_table_lock);
+		spin_unlock(ptl);
 		return 0;
 	}
 
diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 3935428c57cf..4aca0d8da112 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -129,15 +129,15 @@ extern void __vma_adjust_trans_huge(struct vm_area_struct *vma,
 				    unsigned long start,
 				    unsigned long end,
 				    long adjust_next);
-extern int __pmd_trans_huge_lock(pmd_t *pmd,
-				 struct vm_area_struct *vma);
+extern int __pmd_trans_huge_lock(pmd_t *pmd, struct vm_area_struct *vma,
+		spinlock_t **ptl);
 /* mmap_sem must be held on entry */
-static inline int pmd_trans_huge_lock(pmd_t *pmd,
-				      struct vm_area_struct *vma)
+static inline int pmd_trans_huge_lock(pmd_t *pmd, struct vm_area_struct *vma,
+		spinlock_t **ptl)
 {
 	VM_BUG_ON(!rwsem_is_locked(&vma->vm_mm->mmap_sem));
 	if (pmd_trans_huge(*pmd))
-		return __pmd_trans_huge_lock(pmd, vma);
+		return __pmd_trans_huge_lock(pmd, vma, ptl);
 	else
 		return 0;
 }
@@ -215,8 +215,8 @@ static inline void vma_adjust_trans_huge(struct vm_area_struct *vma,
 					 long adjust_next)
 {
 }
-static inline int pmd_trans_huge_lock(pmd_t *pmd,
-				      struct vm_area_struct *vma)
+static inline int pmd_trans_huge_lock(pmd_t *pmd, struct vm_area_struct *vma,
+		spinlock_t **ptl)
 {
 	return 0;
 }
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index e5b2d316be2e..471eb04066ff 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1376,9 +1376,10 @@ out:
 int zap_huge_pmd(struct mmu_gather *tlb, struct vm_area_struct *vma,
 		 pmd_t *pmd, unsigned long addr)
 {
+	spinlock_t *ptl;
 	int ret = 0;
 
-	if (__pmd_trans_huge_lock(pmd, vma) == 1) {
+	if (__pmd_trans_huge_lock(pmd, vma, &ptl) == 1) {
 		struct page *page;
 		pgtable_t pgtable;
 		pmd_t orig_pmd;
@@ -1393,7 +1394,7 @@ int zap_huge_pmd(struct mmu_gather *tlb, struct vm_area_struct *vma,
 		pgtable = pgtable_trans_huge_withdraw(tlb->mm, pmd);
 		if (is_huge_zero_pmd(orig_pmd)) {
 			atomic_long_dec(&tlb->mm->nr_ptes);
-			spin_unlock(&tlb->mm->page_table_lock);
+			spin_unlock(ptl);
 			put_huge_zero_page();
 		} else {
 			page = pmd_page(orig_pmd);
@@ -1402,7 +1403,7 @@ int zap_huge_pmd(struct mmu_gather *tlb, struct vm_area_struct *vma,
 			add_mm_counter(tlb->mm, MM_ANONPAGES, -HPAGE_PMD_NR);
 			VM_BUG_ON(!PageHead(page));
 			atomic_long_dec(&tlb->mm->nr_ptes);
-			spin_unlock(&tlb->mm->page_table_lock);
+			spin_unlock(ptl);
 			tlb_remove_page(tlb, page);
 		}
 		pte_free(tlb->mm, pgtable);
@@ -1415,14 +1416,15 @@ int mincore_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
 		unsigned long addr, unsigned long end,
 		unsigned char *vec)
 {
+	spinlock_t *ptl;
 	int ret = 0;
 
-	if (__pmd_trans_huge_lock(pmd, vma) == 1) {
+	if (__pmd_trans_huge_lock(pmd, vma, &ptl) == 1) {
 		/*
 		 * All logical pages in the range are present
 		 * if backed by a huge page.
 		 */
-		spin_unlock(&vma->vm_mm->page_table_lock);
+		spin_unlock(ptl);
 		memset(vec, 1, (end - addr) >> PAGE_SHIFT);
 		ret = 1;
 	}
@@ -1435,6 +1437,7 @@ int move_huge_pmd(struct vm_area_struct *vma, struct vm_area_struct *new_vma,
 		  unsigned long new_addr, unsigned long old_end,
 		  pmd_t *old_pmd, pmd_t *new_pmd)
 {
+	spinlock_t *old_ptl, *new_ptl;
 	int ret = 0;
 	pmd_t pmd;
 
@@ -1455,12 +1458,21 @@ int move_huge_pmd(struct vm_area_struct *vma, struct vm_area_struct *new_vma,
 		goto out;
 	}
 
-	ret = __pmd_trans_huge_lock(old_pmd, vma);
+	/*
+	 * We don't have to worry about the ordering of src and dst
+	 * ptlocks because exclusive mmap_sem prevents deadlock.
+	 */
+	ret = __pmd_trans_huge_lock(old_pmd, vma, &old_ptl);
 	if (ret == 1) {
+		new_ptl = pmd_lockptr(mm, new_pmd);
+		if (new_ptl != old_ptl)
+			spin_lock_nested(new_ptl, SINGLE_DEPTH_NESTING);
 		pmd = pmdp_get_and_clear(mm, old_addr, old_pmd);
 		VM_BUG_ON(!pmd_none(*new_pmd));
 		set_pmd_at(mm, new_addr, new_pmd, pmd_mksoft_dirty(pmd));
-		spin_unlock(&mm->page_table_lock);
+		if (new_ptl != old_ptl)
+			spin_unlock(new_ptl);
+		spin_unlock(old_ptl);
 	}
 out:
 	return ret;
@@ -1476,9 +1488,10 @@ int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
 		unsigned long addr, pgprot_t newprot, int prot_numa)
 {
 	struct mm_struct *mm = vma->vm_mm;
+	spinlock_t *ptl;
 	int ret = 0;
 
-	if (__pmd_trans_huge_lock(pmd, vma) == 1) {
+	if (__pmd_trans_huge_lock(pmd, vma, &ptl) == 1) {
 		pmd_t entry;
 		ret = 1;
 		if (!prot_numa) {
@@ -1507,7 +1520,7 @@ int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
 		if (ret == HPAGE_PMD_NR)
 			set_pmd_at(mm, addr, pmd, entry);
 
-		spin_unlock(&vma->vm_mm->page_table_lock);
+		spin_unlock(ptl);
 	}
 
 	return ret;
@@ -1520,12 +1533,13 @@ int change_huge_pmd(struct vm_area_struct *vma, pmd_t *pmd,
  * Note that if it returns 1, this routine returns without unlocking page
  * table locks. So callers must unlock them.
  */
-int __pmd_trans_huge_lock(pmd_t *pmd, struct vm_area_struct *vma)
+int __pmd_trans_huge_lock(pmd_t *pmd, struct vm_area_struct *vma,
+		spinlock_t **ptl)
 {
-	spin_lock(&vma->vm_mm->page_table_lock);
+	*ptl = pmd_lock(vma->vm_mm, pmd);
 	if (likely(pmd_trans_huge(*pmd))) {
 		if (unlikely(pmd_trans_splitting(*pmd))) {
-			spin_unlock(&vma->vm_mm->page_table_lock);
+			spin_unlock(*ptl);
 			wait_split_huge_page(vma->anon_vma, pmd);
 			return -1;
 		} else {
@@ -1534,7 +1548,7 @@ int __pmd_trans_huge_lock(pmd_t *pmd, struct vm_area_struct *vma)
 			return 1;
 		}
 	}
-	spin_unlock(&vma->vm_mm->page_table_lock);
+	spin_unlock(*ptl);
 	return 0;
 }
 
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index e3cd40b2d5d9..f1a0ae6e11b8 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -6605,10 +6605,10 @@ static int mem_cgroup_count_precharge_pte_range(pmd_t *pmd,
 	pte_t *pte;
 	spinlock_t *ptl;
 
-	if (pmd_trans_huge_lock(pmd, vma) == 1) {
+	if (pmd_trans_huge_lock(pmd, vma, &ptl) == 1) {
 		if (get_mctgt_type_thp(vma, addr, *pmd, NULL) == MC_TARGET_PAGE)
 			mc.precharge += HPAGE_PMD_NR;
-		spin_unlock(&vma->vm_mm->page_table_lock);
+		spin_unlock(ptl);
 		return 0;
 	}
 
@@ -6797,9 +6797,9 @@ static int mem_cgroup_move_charge_pte_range(pmd_t *pmd,
 	 *    to be unlocked in __split_huge_page_splitting(), where the main
 	 *    part of thp split is not executed yet.
 	 */
-	if (pmd_trans_huge_lock(pmd, vma) == 1) {
+	if (pmd_trans_huge_lock(pmd, vma, &ptl) == 1) {
 		if (mc.precharge < HPAGE_PMD_NR) {
-			spin_unlock(&vma->vm_mm->page_table_lock);
+			spin_unlock(ptl);
 			return 0;
 		}
 		target_type = get_mctgt_type_thp(vma, addr, *pmd, &target);
@@ -6816,7 +6816,7 @@ static int mem_cgroup_move_charge_pte_range(pmd_t *pmd,
 			}
 			put_page(page);
 		}
-		spin_unlock(&vma->vm_mm->page_table_lock);
+		spin_unlock(ptl);
 		return 0;
 	}
 
-- 
cgit 


From 117b0791ac42f2ec447bc864e70ad622b5604059 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:30:56 -0800
Subject: mm, thp: move ptl taking inside page_check_address_pmd()

With split page table lock we can't know which lock we need to take
before we find the relevant pmd.

Let's move lock taking inside the function.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Tested-by: Alex Thorlton <athorlton@sgi.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "Eric W . Biederman" <ebiederm@xmission.com>
Cc: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Dave Jones <davej@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/huge_mm.h |  3 ++-
 mm/huge_memory.c        | 43 +++++++++++++++++++++++++++----------------
 mm/rmap.c               | 13 +++++--------
 3 files changed, 34 insertions(+), 25 deletions(-)

diff --git a/include/linux/huge_mm.h b/include/linux/huge_mm.h
index 4aca0d8da112..91672e2deec3 100644
--- a/include/linux/huge_mm.h
+++ b/include/linux/huge_mm.h
@@ -54,7 +54,8 @@ enum page_check_address_pmd_flag {
 extern pmd_t *page_check_address_pmd(struct page *page,
 				     struct mm_struct *mm,
 				     unsigned long address,
-				     enum page_check_address_pmd_flag flag);
+				     enum page_check_address_pmd_flag flag,
+				     spinlock_t **ptl);
 
 #define HPAGE_PMD_ORDER (HPAGE_PMD_SHIFT-PAGE_SHIFT)
 #define HPAGE_PMD_NR (1<<HPAGE_PMD_ORDER)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 471eb04066ff..c2082ab4fc93 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1552,23 +1552,33 @@ int __pmd_trans_huge_lock(pmd_t *pmd, struct vm_area_struct *vma,
 	return 0;
 }
 
+/*
+ * This function returns whether a given @page is mapped onto the @address
+ * in the virtual space of @mm.
+ *
+ * When it's true, this function returns *pmd with holding the page table lock
+ * and passing it back to the caller via @ptl.
+ * If it's false, returns NULL without holding the page table lock.
+ */
 pmd_t *page_check_address_pmd(struct page *page,
 			      struct mm_struct *mm,
 			      unsigned long address,
-			      enum page_check_address_pmd_flag flag)
+			      enum page_check_address_pmd_flag flag,
+			      spinlock_t **ptl)
 {
-	pmd_t *pmd, *ret = NULL;
+	pmd_t *pmd;
 
 	if (address & ~HPAGE_PMD_MASK)
-		goto out;
+		return NULL;
 
 	pmd = mm_find_pmd(mm, address);
 	if (!pmd)
-		goto out;
+		return NULL;
+	*ptl = pmd_lock(mm, pmd);
 	if (pmd_none(*pmd))
-		goto out;
+		goto unlock;
 	if (pmd_page(*pmd) != page)
-		goto out;
+		goto unlock;
 	/*
 	 * split_vma() may create temporary aliased mappings. There is
 	 * no risk as long as all huge pmd are found and have their
@@ -1578,14 +1588,15 @@ pmd_t *page_check_address_pmd(struct page *page,
 	 */
 	if (flag == PAGE_CHECK_ADDRESS_PMD_NOTSPLITTING_FLAG &&
 	    pmd_trans_splitting(*pmd))
-		goto out;
+		goto unlock;
 	if (pmd_trans_huge(*pmd)) {
 		VM_BUG_ON(flag == PAGE_CHECK_ADDRESS_PMD_SPLITTING_FLAG &&
 			  !pmd_trans_splitting(*pmd));
-		ret = pmd;
+		return pmd;
 	}
-out:
-	return ret;
+unlock:
+	spin_unlock(*ptl);
+	return NULL;
 }
 
 static int __split_huge_page_splitting(struct page *page,
@@ -1593,6 +1604,7 @@ static int __split_huge_page_splitting(struct page *page,
 				       unsigned long address)
 {
 	struct mm_struct *mm = vma->vm_mm;
+	spinlock_t *ptl;
 	pmd_t *pmd;
 	int ret = 0;
 	/* For mmu_notifiers */
@@ -1600,9 +1612,8 @@ static int __split_huge_page_splitting(struct page *page,
 	const unsigned long mmun_end   = address + HPAGE_PMD_SIZE;
 
 	mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end);
-	spin_lock(&mm->page_table_lock);
 	pmd = page_check_address_pmd(page, mm, address,
-				     PAGE_CHECK_ADDRESS_PMD_NOTSPLITTING_FLAG);
+			PAGE_CHECK_ADDRESS_PMD_NOTSPLITTING_FLAG, &ptl);
 	if (pmd) {
 		/*
 		 * We can't temporarily set the pmd to null in order
@@ -1613,8 +1624,8 @@ static int __split_huge_page_splitting(struct page *page,
 		 */
 		pmdp_splitting_flush(vma, address, pmd);
 		ret = 1;
+		spin_unlock(ptl);
 	}
-	spin_unlock(&mm->page_table_lock);
 	mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
 
 	return ret;
@@ -1745,14 +1756,14 @@ static int __split_huge_page_map(struct page *page,
 				 unsigned long address)
 {
 	struct mm_struct *mm = vma->vm_mm;
+	spinlock_t *ptl;
 	pmd_t *pmd, _pmd;
 	int ret = 0, i;
 	pgtable_t pgtable;
 	unsigned long haddr;
 
-	spin_lock(&mm->page_table_lock);
 	pmd = page_check_address_pmd(page, mm, address,
-				     PAGE_CHECK_ADDRESS_PMD_SPLITTING_FLAG);
+			PAGE_CHECK_ADDRESS_PMD_SPLITTING_FLAG, &ptl);
 	if (pmd) {
 		pgtable = pgtable_trans_huge_withdraw(mm, pmd);
 		pmd_populate(mm, &_pmd, pgtable);
@@ -1807,8 +1818,8 @@ static int __split_huge_page_map(struct page *page,
 		pmdp_invalidate(vma, address, pmd);
 		pmd_populate(mm, pmd, pgtable);
 		ret = 1;
+		spin_unlock(ptl);
 	}
-	spin_unlock(&mm->page_table_lock);
 
 	return ret;
 }
diff --git a/mm/rmap.c b/mm/rmap.c
index fd3ee7a54a13..b59d741dcf65 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -665,25 +665,23 @@ int page_referenced_one(struct page *page, struct vm_area_struct *vma,
 			unsigned long *vm_flags)
 {
 	struct mm_struct *mm = vma->vm_mm;
+	spinlock_t *ptl;
 	int referenced = 0;
 
 	if (unlikely(PageTransHuge(page))) {
 		pmd_t *pmd;
 
-		spin_lock(&mm->page_table_lock);
 		/*
 		 * rmap might return false positives; we must filter
 		 * these out using page_check_address_pmd().
 		 */
 		pmd = page_check_address_pmd(page, mm, address,
-					     PAGE_CHECK_ADDRESS_PMD_FLAG);
-		if (!pmd) {
-			spin_unlock(&mm->page_table_lock);
+					     PAGE_CHECK_ADDRESS_PMD_FLAG, &ptl);
+		if (!pmd)
 			goto out;
-		}
 
 		if (vma->vm_flags & VM_LOCKED) {
-			spin_unlock(&mm->page_table_lock);
+			spin_unlock(ptl);
 			*mapcount = 0;	/* break early from loop */
 			*vm_flags |= VM_LOCKED;
 			goto out;
@@ -692,10 +690,9 @@ int page_referenced_one(struct page *page, struct vm_area_struct *vma,
 		/* go ahead even if the pmd is pmd_trans_splitting() */
 		if (pmdp_clear_flush_young_notify(vma, address, pmd))
 			referenced++;
-		spin_unlock(&mm->page_table_lock);
+		spin_unlock(ptl);
 	} else {
 		pte_t *pte;
-		spinlock_t *ptl;
 
 		/*
 		 * rmap might return false positives; we must filter
-- 
cgit 


From c389a250ab4cfa4a3775d9f2c45271618af6d5b2 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:30:59 -0800
Subject: mm, thp: do not access mm->pmd_huge_pte directly

Currently mm->pmd_huge_pte protected by page table lock.  It will not
work with split lock.  We have to have per-pmd pmd_huge_pte for proper
access serialization.

For now, let's just introduce wrapper to access mm->pmd_huge_pte.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Tested-by: Alex Thorlton <athorlton@sgi.com>
Cc: Alex Thorlton <athorlton@sgi.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: "Eric W . Biederman" <ebiederm@xmission.com>
Cc: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Dave Jones <davej@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/s390/mm/pgtable.c | 12 ++++++------
 arch/sparc/mm/tlb.c    | 12 ++++++------
 include/linux/mm.h     |  1 +
 mm/pgtable-generic.c   | 12 ++++++------
 4 files changed, 19 insertions(+), 18 deletions(-)

diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 0a2e5e086749..1ea18fcfa211 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -1244,11 +1244,11 @@ void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
 	assert_spin_locked(&mm->page_table_lock);
 
 	/* FIFO */
-	if (!mm->pmd_huge_pte)
+	if (!pmd_huge_pte(mm, pmdp))
 		INIT_LIST_HEAD(lh);
 	else
-		list_add(lh, (struct list_head *) mm->pmd_huge_pte);
-	mm->pmd_huge_pte = pgtable;
+		list_add(lh, (struct list_head *) pmd_huge_pte(mm, pmdp));
+	pmd_huge_pte(mm, pmdp) = pgtable;
 }
 
 pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp)
@@ -1260,12 +1260,12 @@ pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp)
 	assert_spin_locked(&mm->page_table_lock);
 
 	/* FIFO */
-	pgtable = mm->pmd_huge_pte;
+	pgtable = pmd_huge_pte(mm, pmdp);
 	lh = (struct list_head *) pgtable;
 	if (list_empty(lh))
-		mm->pmd_huge_pte = NULL;
+		pmd_huge_pte(mm, pmdp) = NULL;
 	else {
-		mm->pmd_huge_pte = (pgtable_t) lh->next;
+		pmd_huge_pte(mm, pmdp) = (pgtable_t) lh->next;
 		list_del(lh);
 	}
 	ptep = (pte_t *) pgtable;
diff --git a/arch/sparc/mm/tlb.c b/arch/sparc/mm/tlb.c
index 7a91f288c708..656cc46a81f5 100644
--- a/arch/sparc/mm/tlb.c
+++ b/arch/sparc/mm/tlb.c
@@ -196,11 +196,11 @@ void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
 	assert_spin_locked(&mm->page_table_lock);
 
 	/* FIFO */
-	if (!mm->pmd_huge_pte)
+	if (!pmd_huge_pte(mm, pmdp))
 		INIT_LIST_HEAD(lh);
 	else
-		list_add(lh, (struct list_head *) mm->pmd_huge_pte);
-	mm->pmd_huge_pte = pgtable;
+		list_add(lh, (struct list_head *) pmd_huge_pte(mm, pmdp));
+	pmd_huge_pte(mm, pmdp) = pgtable;
 }
 
 pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp)
@@ -211,12 +211,12 @@ pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp)
 	assert_spin_locked(&mm->page_table_lock);
 
 	/* FIFO */
-	pgtable = mm->pmd_huge_pte;
+	pgtable = pmd_huge_pte(mm, pmdp);
 	lh = (struct list_head *) pgtable;
 	if (list_empty(lh))
-		mm->pmd_huge_pte = NULL;
+		pmd_huge_pte(mm, pmdp) = NULL;
 	else {
-		mm->pmd_huge_pte = (pgtable_t) lh->next;
+		pmd_huge_pte(mm, pmdp) = (pgtable_t) lh->next;
 		list_del(lh);
 	}
 	pte_val(pgtable[0]) = 0;
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 4f4ca41fcf27..861cad53b744 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1383,6 +1383,7 @@ static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd)
 	return &mm->page_table_lock;
 }
 
+#define pmd_huge_pte(mm, pmd) ((mm)->pmd_huge_pte)
 
 static inline spinlock_t *pmd_lock(struct mm_struct *mm, pmd_t *pmd)
 {
diff --git a/mm/pgtable-generic.c b/mm/pgtable-generic.c
index 3929a40bd6c0..41fee3e5d570 100644
--- a/mm/pgtable-generic.c
+++ b/mm/pgtable-generic.c
@@ -154,11 +154,11 @@ void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
 	assert_spin_locked(&mm->page_table_lock);
 
 	/* FIFO */
-	if (!mm->pmd_huge_pte)
+	if (!pmd_huge_pte(mm, pmdp))
 		INIT_LIST_HEAD(&pgtable->lru);
 	else
-		list_add(&pgtable->lru, &mm->pmd_huge_pte->lru);
-	mm->pmd_huge_pte = pgtable;
+		list_add(&pgtable->lru, &pmd_huge_pte(mm, pmdp)->lru);
+	pmd_huge_pte(mm, pmdp) = pgtable;
 }
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE */
 #endif
@@ -173,11 +173,11 @@ pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp)
 	assert_spin_locked(&mm->page_table_lock);
 
 	/* FIFO */
-	pgtable = mm->pmd_huge_pte;
+	pgtable = pmd_huge_pte(mm, pmdp);
 	if (list_empty(&pgtable->lru))
-		mm->pmd_huge_pte = NULL;
+		pmd_huge_pte(mm, pmdp) = NULL;
 	else {
-		mm->pmd_huge_pte = list_entry(pgtable->lru.next,
+		pmd_huge_pte(mm, pmdp) = list_entry(pgtable->lru.next,
 					      struct page, lru);
 		list_del(&pgtable->lru);
 	}
-- 
cgit 


From cb900f41215447433cbc456d1c4294e858a84d7c Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:02 -0800
Subject: mm, hugetlb: convert hugetlbfs to use split pmd lock

Hugetlb supports multiple page sizes. We use split lock only for PMD
level, but not for PUD.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Tested-by: Alex Thorlton <athorlton@sgi.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "Eric W . Biederman" <ebiederm@xmission.com>
Cc: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Dave Jones <davej@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/proc/meminfo.c       |   2 +-
 include/linux/hugetlb.h |  26 ++++++++++++
 include/linux/swapops.h |   7 +--
 mm/hugetlb.c            | 110 +++++++++++++++++++++++++++++-------------------
 mm/mempolicy.c          |   5 ++-
 mm/migrate.c            |   7 +--
 mm/rmap.c               |   2 +-
 7 files changed, 105 insertions(+), 54 deletions(-)

diff --git a/fs/proc/meminfo.c b/fs/proc/meminfo.c
index c805d5b69ba1..a77d2b299199 100644
--- a/fs/proc/meminfo.c
+++ b/fs/proc/meminfo.c
@@ -1,8 +1,8 @@
 #include <linux/fs.h>
-#include <linux/hugetlb.h>
 #include <linux/init.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
+#include <linux/hugetlb.h>
 #include <linux/mman.h>
 #include <linux/mmzone.h>
 #include <linux/proc_fs.h>
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 0393270466c3..acd2010328f3 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -392,6 +392,15 @@ static inline int hugepage_migration_support(struct hstate *h)
 	return pmd_huge_support() && (huge_page_shift(h) == PMD_SHIFT);
 }
 
+static inline spinlock_t *huge_pte_lockptr(struct hstate *h,
+					   struct mm_struct *mm, pte_t *pte)
+{
+	if (huge_page_size(h) == PMD_SIZE)
+		return pmd_lockptr(mm, (pmd_t *) pte);
+	VM_BUG_ON(huge_page_size(h) == PAGE_SIZE);
+	return &mm->page_table_lock;
+}
+
 #else	/* CONFIG_HUGETLB_PAGE */
 struct hstate {};
 #define alloc_huge_page_node(h, nid) NULL
@@ -401,6 +410,7 @@ struct hstate {};
 #define hstate_sizelog(s) NULL
 #define hstate_vma(v) NULL
 #define hstate_inode(i) NULL
+#define page_hstate(page) NULL
 #define huge_page_size(h) PAGE_SIZE
 #define huge_page_mask(h) PAGE_MASK
 #define vma_kernel_pagesize(v) PAGE_SIZE
@@ -421,6 +431,22 @@ static inline pgoff_t basepage_index(struct page *page)
 #define dissolve_free_huge_pages(s, e)	do {} while (0)
 #define pmd_huge_support()	0
 #define hugepage_migration_support(h)	0
+
+static inline spinlock_t *huge_pte_lockptr(struct hstate *h,
+					   struct mm_struct *mm, pte_t *pte)
+{
+	return &mm->page_table_lock;
+}
 #endif	/* CONFIG_HUGETLB_PAGE */
 
+static inline spinlock_t *huge_pte_lock(struct hstate *h,
+					struct mm_struct *mm, pte_t *pte)
+{
+	spinlock_t *ptl;
+
+	ptl = huge_pte_lockptr(h, mm, pte);
+	spin_lock(ptl);
+	return ptl;
+}
+
 #endif /* _LINUX_HUGETLB_H */
diff --git a/include/linux/swapops.h b/include/linux/swapops.h
index 8d4fa82bfb91..c0f75261a728 100644
--- a/include/linux/swapops.h
+++ b/include/linux/swapops.h
@@ -139,7 +139,8 @@ static inline void make_migration_entry_read(swp_entry_t *entry)
 
 extern void migration_entry_wait(struct mm_struct *mm, pmd_t *pmd,
 					unsigned long address);
-extern void migration_entry_wait_huge(struct mm_struct *mm, pte_t *pte);
+extern void migration_entry_wait_huge(struct vm_area_struct *vma,
+		struct mm_struct *mm, pte_t *pte);
 #else
 
 #define make_migration_entry(page, write) swp_entry(0, 0)
@@ -151,8 +152,8 @@ static inline int is_migration_entry(swp_entry_t swp)
 static inline void make_migration_entry_read(swp_entry_t *entryp) { }
 static inline void migration_entry_wait(struct mm_struct *mm, pmd_t *pmd,
 					 unsigned long address) { }
-static inline void migration_entry_wait_huge(struct mm_struct *mm,
-					pte_t *pte) { }
+static inline void migration_entry_wait_huge(struct vm_area_struct *vma,
+		struct mm_struct *mm, pte_t *pte) { }
 static inline int is_write_migration_entry(swp_entry_t entry)
 {
 	return 0;
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 0b7656e804d1..7d57af21f49e 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2376,6 +2376,7 @@ int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src,
 	cow = (vma->vm_flags & (VM_SHARED | VM_MAYWRITE)) == VM_MAYWRITE;
 
 	for (addr = vma->vm_start; addr < vma->vm_end; addr += sz) {
+		spinlock_t *src_ptl, *dst_ptl;
 		src_pte = huge_pte_offset(src, addr);
 		if (!src_pte)
 			continue;
@@ -2387,8 +2388,9 @@ int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src,
 		if (dst_pte == src_pte)
 			continue;
 
-		spin_lock(&dst->page_table_lock);
-		spin_lock_nested(&src->page_table_lock, SINGLE_DEPTH_NESTING);
+		dst_ptl = huge_pte_lock(h, dst, dst_pte);
+		src_ptl = huge_pte_lockptr(h, src, src_pte);
+		spin_lock_nested(src_ptl, SINGLE_DEPTH_NESTING);
 		if (!huge_pte_none(huge_ptep_get(src_pte))) {
 			if (cow)
 				huge_ptep_set_wrprotect(src, addr, src_pte);
@@ -2398,8 +2400,8 @@ int copy_hugetlb_page_range(struct mm_struct *dst, struct mm_struct *src,
 			page_dup_rmap(ptepage);
 			set_huge_pte_at(dst, addr, dst_pte, entry);
 		}
-		spin_unlock(&src->page_table_lock);
-		spin_unlock(&dst->page_table_lock);
+		spin_unlock(src_ptl);
+		spin_unlock(dst_ptl);
 	}
 	return 0;
 
@@ -2442,6 +2444,7 @@ void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
 	unsigned long address;
 	pte_t *ptep;
 	pte_t pte;
+	spinlock_t *ptl;
 	struct page *page;
 	struct hstate *h = hstate_vma(vma);
 	unsigned long sz = huge_page_size(h);
@@ -2455,25 +2458,25 @@ void __unmap_hugepage_range(struct mmu_gather *tlb, struct vm_area_struct *vma,
 	tlb_start_vma(tlb, vma);
 	mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end);
 again:
-	spin_lock(&mm->page_table_lock);
 	for (address = start; address < end; address += sz) {
 		ptep = huge_pte_offset(mm, address);
 		if (!ptep)
 			continue;
 
+		ptl = huge_pte_lock(h, mm, ptep);
 		if (huge_pmd_unshare(mm, &address, ptep))
-			continue;
+			goto unlock;
 
 		pte = huge_ptep_get(ptep);
 		if (huge_pte_none(pte))
-			continue;
+			goto unlock;
 
 		/*
 		 * HWPoisoned hugepage is already unmapped and dropped reference
 		 */
 		if (unlikely(is_hugetlb_entry_hwpoisoned(pte))) {
 			huge_pte_clear(mm, address, ptep);
-			continue;
+			goto unlock;
 		}
 
 		page = pte_page(pte);
@@ -2484,7 +2487,7 @@ again:
 		 */
 		if (ref_page) {
 			if (page != ref_page)
-				continue;
+				goto unlock;
 
 			/*
 			 * Mark the VMA as having unmapped its page so that
@@ -2501,13 +2504,18 @@ again:
 
 		page_remove_rmap(page);
 		force_flush = !__tlb_remove_page(tlb, page);
-		if (force_flush)
+		if (force_flush) {
+			spin_unlock(ptl);
 			break;
+		}
 		/* Bail out after unmapping reference page if supplied */
-		if (ref_page)
+		if (ref_page) {
+			spin_unlock(ptl);
 			break;
+		}
+unlock:
+		spin_unlock(ptl);
 	}
-	spin_unlock(&mm->page_table_lock);
 	/*
 	 * mmu_gather ran out of room to batch pages, we break out of
 	 * the PTE lock to avoid doing the potential expensive TLB invalidate
@@ -2613,7 +2621,7 @@ static int unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma,
  */
 static int hugetlb_cow(struct mm_struct *mm, struct vm_area_struct *vma,
 			unsigned long address, pte_t *ptep, pte_t pte,
-			struct page *pagecache_page)
+			struct page *pagecache_page, spinlock_t *ptl)
 {
 	struct hstate *h = hstate_vma(vma);
 	struct page *old_page, *new_page;
@@ -2647,8 +2655,8 @@ retry_avoidcopy:
 
 	page_cache_get(old_page);
 
-	/* Drop page_table_lock as buddy allocator may be called */
-	spin_unlock(&mm->page_table_lock);
+	/* Drop page table lock as buddy allocator may be called */
+	spin_unlock(ptl);
 	new_page = alloc_huge_page(vma, address, outside_reserve);
 
 	if (IS_ERR(new_page)) {
@@ -2666,13 +2674,13 @@ retry_avoidcopy:
 			BUG_ON(huge_pte_none(pte));
 			if (unmap_ref_private(mm, vma, old_page, address)) {
 				BUG_ON(huge_pte_none(pte));
-				spin_lock(&mm->page_table_lock);
+				spin_lock(ptl);
 				ptep = huge_pte_offset(mm, address & huge_page_mask(h));
 				if (likely(pte_same(huge_ptep_get(ptep), pte)))
 					goto retry_avoidcopy;
 				/*
-				 * race occurs while re-acquiring page_table_lock, and
-				 * our job is done.
+				 * race occurs while re-acquiring page table
+				 * lock, and our job is done.
 				 */
 				return 0;
 			}
@@ -2680,7 +2688,7 @@ retry_avoidcopy:
 		}
 
 		/* Caller expects lock to be held */
-		spin_lock(&mm->page_table_lock);
+		spin_lock(ptl);
 		if (err == -ENOMEM)
 			return VM_FAULT_OOM;
 		else
@@ -2695,7 +2703,7 @@ retry_avoidcopy:
 		page_cache_release(new_page);
 		page_cache_release(old_page);
 		/* Caller expects lock to be held */
-		spin_lock(&mm->page_table_lock);
+		spin_lock(ptl);
 		return VM_FAULT_OOM;
 	}
 
@@ -2707,10 +2715,10 @@ retry_avoidcopy:
 	mmun_end = mmun_start + huge_page_size(h);
 	mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end);
 	/*
-	 * Retake the page_table_lock to check for racing updates
+	 * Retake the page table lock to check for racing updates
 	 * before the page tables are altered
 	 */
-	spin_lock(&mm->page_table_lock);
+	spin_lock(ptl);
 	ptep = huge_pte_offset(mm, address & huge_page_mask(h));
 	if (likely(pte_same(huge_ptep_get(ptep), pte))) {
 		ClearPagePrivate(new_page);
@@ -2724,13 +2732,13 @@ retry_avoidcopy:
 		/* Make the old page be freed below */
 		new_page = old_page;
 	}
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(ptl);
 	mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
 	page_cache_release(new_page);
 	page_cache_release(old_page);
 
 	/* Caller expects lock to be held */
-	spin_lock(&mm->page_table_lock);
+	spin_lock(ptl);
 	return 0;
 }
 
@@ -2778,6 +2786,7 @@ static int hugetlb_no_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	struct page *page;
 	struct address_space *mapping;
 	pte_t new_pte;
+	spinlock_t *ptl;
 
 	/*
 	 * Currently, we are forced to kill the process in the event the
@@ -2864,7 +2873,8 @@ retry:
 			goto backout_unlocked;
 		}
 
-	spin_lock(&mm->page_table_lock);
+	ptl = huge_pte_lockptr(h, mm, ptep);
+	spin_lock(ptl);
 	size = i_size_read(mapping->host) >> huge_page_shift(h);
 	if (idx >= size)
 		goto backout;
@@ -2885,16 +2895,16 @@ retry:
 
 	if ((flags & FAULT_FLAG_WRITE) && !(vma->vm_flags & VM_SHARED)) {
 		/* Optimization, do the COW without a second fault */
-		ret = hugetlb_cow(mm, vma, address, ptep, new_pte, page);
+		ret = hugetlb_cow(mm, vma, address, ptep, new_pte, page, ptl);
 	}
 
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(ptl);
 	unlock_page(page);
 out:
 	return ret;
 
 backout:
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(ptl);
 backout_unlocked:
 	unlock_page(page);
 	put_page(page);
@@ -2906,6 +2916,7 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 {
 	pte_t *ptep;
 	pte_t entry;
+	spinlock_t *ptl;
 	int ret;
 	struct page *page = NULL;
 	struct page *pagecache_page = NULL;
@@ -2918,7 +2929,7 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 	if (ptep) {
 		entry = huge_ptep_get(ptep);
 		if (unlikely(is_hugetlb_entry_migration(entry))) {
-			migration_entry_wait_huge(mm, ptep);
+			migration_entry_wait_huge(vma, mm, ptep);
 			return 0;
 		} else if (unlikely(is_hugetlb_entry_hwpoisoned(entry)))
 			return VM_FAULT_HWPOISON_LARGE |
@@ -2974,17 +2985,18 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 	if (page != pagecache_page)
 		lock_page(page);
 
-	spin_lock(&mm->page_table_lock);
+	ptl = huge_pte_lockptr(h, mm, ptep);
+	spin_lock(ptl);
 	/* Check for a racing update before calling hugetlb_cow */
 	if (unlikely(!pte_same(entry, huge_ptep_get(ptep))))
-		goto out_page_table_lock;
+		goto out_ptl;
 
 
 	if (flags & FAULT_FLAG_WRITE) {
 		if (!huge_pte_write(entry)) {
 			ret = hugetlb_cow(mm, vma, address, ptep, entry,
-							pagecache_page);
-			goto out_page_table_lock;
+					pagecache_page, ptl);
+			goto out_ptl;
 		}
 		entry = huge_pte_mkdirty(entry);
 	}
@@ -2993,8 +3005,8 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 						flags & FAULT_FLAG_WRITE))
 		update_mmu_cache(vma, address, ptep);
 
-out_page_table_lock:
-	spin_unlock(&mm->page_table_lock);
+out_ptl:
+	spin_unlock(ptl);
 
 	if (pagecache_page) {
 		unlock_page(pagecache_page);
@@ -3020,9 +3032,9 @@ long follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	unsigned long remainder = *nr_pages;
 	struct hstate *h = hstate_vma(vma);
 
-	spin_lock(&mm->page_table_lock);
 	while (vaddr < vma->vm_end && remainder) {
 		pte_t *pte;
+		spinlock_t *ptl = NULL;
 		int absent;
 		struct page *page;
 
@@ -3030,8 +3042,12 @@ long follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		 * Some archs (sparc64, sh*) have multiple pte_ts to
 		 * each hugepage.  We have to make sure we get the
 		 * first, for the page indexing below to work.
+		 *
+		 * Note that page table lock is not held when pte is null.
 		 */
 		pte = huge_pte_offset(mm, vaddr & huge_page_mask(h));
+		if (pte)
+			ptl = huge_pte_lock(h, mm, pte);
 		absent = !pte || huge_pte_none(huge_ptep_get(pte));
 
 		/*
@@ -3043,6 +3059,8 @@ long follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		 */
 		if (absent && (flags & FOLL_DUMP) &&
 		    !hugetlbfs_pagecache_present(h, vma, vaddr)) {
+			if (pte)
+				spin_unlock(ptl);
 			remainder = 0;
 			break;
 		}
@@ -3062,10 +3080,10 @@ long follow_hugetlb_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		      !huge_pte_write(huge_ptep_get(pte)))) {
 			int ret;
 
-			spin_unlock(&mm->page_table_lock);
+			if (pte)
+				spin_unlock(ptl);
 			ret = hugetlb_fault(mm, vma, vaddr,
 				(flags & FOLL_WRITE) ? FAULT_FLAG_WRITE : 0);
-			spin_lock(&mm->page_table_lock);
 			if (!(ret & VM_FAULT_ERROR))
 				continue;
 
@@ -3096,8 +3114,8 @@ same_page:
 			 */
 			goto same_page;
 		}
+		spin_unlock(ptl);
 	}
-	spin_unlock(&mm->page_table_lock);
 	*nr_pages = remainder;
 	*position = vaddr;
 
@@ -3118,13 +3136,15 @@ unsigned long hugetlb_change_protection(struct vm_area_struct *vma,
 	flush_cache_range(vma, address, end);
 
 	mutex_lock(&vma->vm_file->f_mapping->i_mmap_mutex);
-	spin_lock(&mm->page_table_lock);
 	for (; address < end; address += huge_page_size(h)) {
+		spinlock_t *ptl;
 		ptep = huge_pte_offset(mm, address);
 		if (!ptep)
 			continue;
+		ptl = huge_pte_lock(h, mm, ptep);
 		if (huge_pmd_unshare(mm, &address, ptep)) {
 			pages++;
+			spin_unlock(ptl);
 			continue;
 		}
 		if (!huge_pte_none(huge_ptep_get(ptep))) {
@@ -3134,8 +3154,8 @@ unsigned long hugetlb_change_protection(struct vm_area_struct *vma,
 			set_huge_pte_at(mm, address, ptep, pte);
 			pages++;
 		}
+		spin_unlock(ptl);
 	}
-	spin_unlock(&mm->page_table_lock);
 	/*
 	 * Must flush TLB before releasing i_mmap_mutex: x86's huge_pmd_unshare
 	 * may have cleared our pud entry and done put_page on the page table:
@@ -3298,6 +3318,7 @@ pte_t *huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud)
 	unsigned long saddr;
 	pte_t *spte = NULL;
 	pte_t *pte;
+	spinlock_t *ptl;
 
 	if (!vma_shareable(vma, addr))
 		return (pte_t *)pmd_alloc(mm, pud, addr);
@@ -3320,13 +3341,14 @@ pte_t *huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud)
 	if (!spte)
 		goto out;
 
-	spin_lock(&mm->page_table_lock);
+	ptl = huge_pte_lockptr(hstate_vma(vma), mm, spte);
+	spin_lock(ptl);
 	if (pud_none(*pud))
 		pud_populate(mm, pud,
 				(pmd_t *)((unsigned long)spte & PAGE_MASK));
 	else
 		put_page(virt_to_page(spte));
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(ptl);
 out:
 	pte = (pte_t *)pmd_alloc(mm, pud, addr);
 	mutex_unlock(&mapping->i_mmap_mutex);
@@ -3340,7 +3362,7 @@ out:
  * indicated by page_count > 1, unmap is achieved by clearing pud and
  * decrementing the ref count. If count == 1, the pte page is not shared.
  *
- * called with vma->vm_mm->page_table_lock held.
+ * called with page table lock held.
  *
  * returns: 1 successfully unmapped a shared pte page
  *	    0 the underlying pte page is not shared, or it is the last user
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 4cc19f6ab6c6..c4403cdf3433 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -525,8 +525,9 @@ static void queue_pages_hugetlb_pmd_range(struct vm_area_struct *vma,
 #ifdef CONFIG_HUGETLB_PAGE
 	int nid;
 	struct page *page;
+	spinlock_t *ptl;
 
-	spin_lock(&vma->vm_mm->page_table_lock);
+	ptl = huge_pte_lock(hstate_vma(vma), vma->vm_mm, (pte_t *)pmd);
 	page = pte_page(huge_ptep_get((pte_t *)pmd));
 	nid = page_to_nid(page);
 	if (node_isset(nid, *nodes) == !!(flags & MPOL_MF_INVERT))
@@ -536,7 +537,7 @@ static void queue_pages_hugetlb_pmd_range(struct vm_area_struct *vma,
 	    (flags & MPOL_MF_MOVE && page_mapcount(page) == 1))
 		isolate_huge_page(page, private);
 unlock:
-	spin_unlock(&vma->vm_mm->page_table_lock);
+	spin_unlock(ptl);
 #else
 	BUG();
 #endif
diff --git a/mm/migrate.c b/mm/migrate.c
index dfc8300ecbb2..01f45cefa4cd 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -130,7 +130,7 @@ static int remove_migration_pte(struct page *new, struct vm_area_struct *vma,
 		ptep = huge_pte_offset(mm, addr);
 		if (!ptep)
 			goto out;
-		ptl = &mm->page_table_lock;
+		ptl = huge_pte_lockptr(hstate_vma(vma), mm, ptep);
 	} else {
 		pmd = mm_find_pmd(mm, addr);
 		if (!pmd)
@@ -249,9 +249,10 @@ void migration_entry_wait(struct mm_struct *mm, pmd_t *pmd,
 	__migration_entry_wait(mm, ptep, ptl);
 }
 
-void migration_entry_wait_huge(struct mm_struct *mm, pte_t *pte)
+void migration_entry_wait_huge(struct vm_area_struct *vma,
+		struct mm_struct *mm, pte_t *pte)
 {
-	spinlock_t *ptl = &(mm)->page_table_lock;
+	spinlock_t *ptl = huge_pte_lockptr(hstate_vma(vma), mm, pte);
 	__migration_entry_wait(mm, pte, ptl);
 }
 
diff --git a/mm/rmap.c b/mm/rmap.c
index b59d741dcf65..55c8b8dc9ffb 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -601,7 +601,7 @@ pte_t *__page_check_address(struct page *page, struct mm_struct *mm,
 
 	if (unlikely(PageHuge(page))) {
 		pte = huge_pte_offset(mm, address);
-		ptl = &mm->page_table_lock;
+		ptl = huge_pte_lockptr(page_hstate(page), mm, pte);
 		goto check;
 	}
 
-- 
cgit 


From c4088ebdca64c9a2e34a38177d2249805ede1f4b Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:04 -0800
Subject: mm: convert the rest to new page table lock api

Only trivial cases left. Let's convert them altogether.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Tested-by: Alex Thorlton <athorlton@sgi.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "Eric W . Biederman" <ebiederm@xmission.com>
Cc: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Dave Jones <davej@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Hugh Dickins <hughd@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/huge_memory.c     | 108 ++++++++++++++++++++++++++++-----------------------
 mm/memory.c          |  13 ++++---
 mm/migrate.c         |   7 ++--
 mm/pgtable-generic.c |   4 +-
 4 files changed, 73 insertions(+), 59 deletions(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index c2082ab4fc93..bccd5a628ea6 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -710,6 +710,7 @@ static int __do_huge_pmd_anonymous_page(struct mm_struct *mm,
 					struct page *page)
 {
 	pgtable_t pgtable;
+	spinlock_t *ptl;
 
 	VM_BUG_ON(!PageCompound(page));
 	pgtable = pte_alloc_one(mm, haddr);
@@ -724,9 +725,9 @@ static int __do_huge_pmd_anonymous_page(struct mm_struct *mm,
 	 */
 	__SetPageUptodate(page);
 
-	spin_lock(&mm->page_table_lock);
+	ptl = pmd_lock(mm, pmd);
 	if (unlikely(!pmd_none(*pmd))) {
-		spin_unlock(&mm->page_table_lock);
+		spin_unlock(ptl);
 		mem_cgroup_uncharge_page(page);
 		put_page(page);
 		pte_free(mm, pgtable);
@@ -739,7 +740,7 @@ static int __do_huge_pmd_anonymous_page(struct mm_struct *mm,
 		set_pmd_at(mm, haddr, pmd, entry);
 		add_mm_counter(mm, MM_ANONPAGES, HPAGE_PMD_NR);
 		atomic_long_inc(&mm->nr_ptes);
-		spin_unlock(&mm->page_table_lock);
+		spin_unlock(ptl);
 	}
 
 	return 0;
@@ -759,6 +760,7 @@ static inline struct page *alloc_hugepage_vma(int defrag,
 			       HPAGE_PMD_ORDER, vma, haddr, nd);
 }
 
+/* Caller must hold page table lock. */
 static bool set_huge_zero_page(pgtable_t pgtable, struct mm_struct *mm,
 		struct vm_area_struct *vma, unsigned long haddr, pmd_t *pmd,
 		struct page *zero_page)
@@ -790,6 +792,7 @@ int do_huge_pmd_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		return VM_FAULT_OOM;
 	if (!(flags & FAULT_FLAG_WRITE) &&
 			transparent_hugepage_use_zero_page()) {
+		spinlock_t *ptl;
 		pgtable_t pgtable;
 		struct page *zero_page;
 		bool set;
@@ -802,10 +805,10 @@ int do_huge_pmd_anonymous_page(struct mm_struct *mm, struct vm_area_struct *vma,
 			count_vm_event(THP_FAULT_FALLBACK);
 			return VM_FAULT_FALLBACK;
 		}
-		spin_lock(&mm->page_table_lock);
+		ptl = pmd_lock(mm, pmd);
 		set = set_huge_zero_page(pgtable, mm, vma, haddr, pmd,
 				zero_page);
-		spin_unlock(&mm->page_table_lock);
+		spin_unlock(ptl);
 		if (!set) {
 			pte_free(mm, pgtable);
 			put_huge_zero_page();
@@ -838,6 +841,7 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 		  pmd_t *dst_pmd, pmd_t *src_pmd, unsigned long addr,
 		  struct vm_area_struct *vma)
 {
+	spinlock_t *dst_ptl, *src_ptl;
 	struct page *src_page;
 	pmd_t pmd;
 	pgtable_t pgtable;
@@ -848,8 +852,9 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 	if (unlikely(!pgtable))
 		goto out;
 
-	spin_lock(&dst_mm->page_table_lock);
-	spin_lock_nested(&src_mm->page_table_lock, SINGLE_DEPTH_NESTING);
+	dst_ptl = pmd_lock(dst_mm, dst_pmd);
+	src_ptl = pmd_lockptr(src_mm, src_pmd);
+	spin_lock_nested(src_ptl, SINGLE_DEPTH_NESTING);
 
 	ret = -EAGAIN;
 	pmd = *src_pmd;
@@ -858,7 +863,7 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 		goto out_unlock;
 	}
 	/*
-	 * mm->page_table_lock is enough to be sure that huge zero pmd is not
+	 * When page table lock is held, the huge zero pmd should not be
 	 * under splitting since we don't split the page itself, only pmd to
 	 * a page table.
 	 */
@@ -879,8 +884,8 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 	}
 	if (unlikely(pmd_trans_splitting(pmd))) {
 		/* split huge page running from under us */
-		spin_unlock(&src_mm->page_table_lock);
-		spin_unlock(&dst_mm->page_table_lock);
+		spin_unlock(src_ptl);
+		spin_unlock(dst_ptl);
 		pte_free(dst_mm, pgtable);
 
 		wait_split_huge_page(vma->anon_vma, src_pmd); /* src_vma */
@@ -900,8 +905,8 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm,
 
 	ret = 0;
 out_unlock:
-	spin_unlock(&src_mm->page_table_lock);
-	spin_unlock(&dst_mm->page_table_lock);
+	spin_unlock(src_ptl);
+	spin_unlock(dst_ptl);
 out:
 	return ret;
 }
@@ -912,10 +917,11 @@ void huge_pmd_set_accessed(struct mm_struct *mm,
 			   pmd_t *pmd, pmd_t orig_pmd,
 			   int dirty)
 {
+	spinlock_t *ptl;
 	pmd_t entry;
 	unsigned long haddr;
 
-	spin_lock(&mm->page_table_lock);
+	ptl = pmd_lock(mm, pmd);
 	if (unlikely(!pmd_same(*pmd, orig_pmd)))
 		goto unlock;
 
@@ -925,13 +931,14 @@ void huge_pmd_set_accessed(struct mm_struct *mm,
 		update_mmu_cache_pmd(vma, address, pmd);
 
 unlock:
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(ptl);
 }
 
 static int do_huge_pmd_wp_zero_page_fallback(struct mm_struct *mm,
 		struct vm_area_struct *vma, unsigned long address,
 		pmd_t *pmd, pmd_t orig_pmd, unsigned long haddr)
 {
+	spinlock_t *ptl;
 	pgtable_t pgtable;
 	pmd_t _pmd;
 	struct page *page;
@@ -958,7 +965,7 @@ static int do_huge_pmd_wp_zero_page_fallback(struct mm_struct *mm,
 	mmun_end   = haddr + HPAGE_PMD_SIZE;
 	mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end);
 
-	spin_lock(&mm->page_table_lock);
+	ptl = pmd_lock(mm, pmd);
 	if (unlikely(!pmd_same(*pmd, orig_pmd)))
 		goto out_free_page;
 
@@ -985,7 +992,7 @@ static int do_huge_pmd_wp_zero_page_fallback(struct mm_struct *mm,
 	}
 	smp_wmb(); /* make pte visible before pmd */
 	pmd_populate(mm, pmd, pgtable);
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(ptl);
 	put_huge_zero_page();
 	inc_mm_counter(mm, MM_ANONPAGES);
 
@@ -995,7 +1002,7 @@ static int do_huge_pmd_wp_zero_page_fallback(struct mm_struct *mm,
 out:
 	return ret;
 out_free_page:
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(ptl);
 	mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
 	mem_cgroup_uncharge_page(page);
 	put_page(page);
@@ -1009,6 +1016,7 @@ static int do_huge_pmd_wp_page_fallback(struct mm_struct *mm,
 					struct page *page,
 					unsigned long haddr)
 {
+	spinlock_t *ptl;
 	pgtable_t pgtable;
 	pmd_t _pmd;
 	int ret = 0, i;
@@ -1055,7 +1063,7 @@ static int do_huge_pmd_wp_page_fallback(struct mm_struct *mm,
 	mmun_end   = haddr + HPAGE_PMD_SIZE;
 	mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end);
 
-	spin_lock(&mm->page_table_lock);
+	ptl = pmd_lock(mm, pmd);
 	if (unlikely(!pmd_same(*pmd, orig_pmd)))
 		goto out_free_pages;
 	VM_BUG_ON(!PageHead(page));
@@ -1081,7 +1089,7 @@ static int do_huge_pmd_wp_page_fallback(struct mm_struct *mm,
 	smp_wmb(); /* make pte visible before pmd */
 	pmd_populate(mm, pmd, pgtable);
 	page_remove_rmap(page);
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(ptl);
 
 	mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
 
@@ -1092,7 +1100,7 @@ out:
 	return ret;
 
 out_free_pages:
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(ptl);
 	mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
 	mem_cgroup_uncharge_start();
 	for (i = 0; i < HPAGE_PMD_NR; i++) {
@@ -1107,17 +1115,19 @@ out_free_pages:
 int do_huge_pmd_wp_page(struct mm_struct *mm, struct vm_area_struct *vma,
 			unsigned long address, pmd_t *pmd, pmd_t orig_pmd)
 {
+	spinlock_t *ptl;
 	int ret = 0;
 	struct page *page = NULL, *new_page;
 	unsigned long haddr;
 	unsigned long mmun_start;	/* For mmu_notifiers */
 	unsigned long mmun_end;		/* For mmu_notifiers */
 
+	ptl = pmd_lockptr(mm, pmd);
 	VM_BUG_ON(!vma->anon_vma);
 	haddr = address & HPAGE_PMD_MASK;
 	if (is_huge_zero_pmd(orig_pmd))
 		goto alloc;
-	spin_lock(&mm->page_table_lock);
+	spin_lock(ptl);
 	if (unlikely(!pmd_same(*pmd, orig_pmd)))
 		goto out_unlock;
 
@@ -1133,7 +1143,7 @@ int do_huge_pmd_wp_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		goto out_unlock;
 	}
 	get_page(page);
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(ptl);
 alloc:
 	if (transparent_hugepage_enabled(vma) &&
 	    !transparent_hugepage_debug_cow())
@@ -1180,11 +1190,11 @@ alloc:
 	mmun_end   = haddr + HPAGE_PMD_SIZE;
 	mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end);
 
-	spin_lock(&mm->page_table_lock);
+	spin_lock(ptl);
 	if (page)
 		put_page(page);
 	if (unlikely(!pmd_same(*pmd, orig_pmd))) {
-		spin_unlock(&mm->page_table_lock);
+		spin_unlock(ptl);
 		mem_cgroup_uncharge_page(new_page);
 		put_page(new_page);
 		goto out_mn;
@@ -1206,13 +1216,13 @@ alloc:
 		}
 		ret |= VM_FAULT_WRITE;
 	}
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(ptl);
 out_mn:
 	mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
 out:
 	return ret;
 out_unlock:
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(ptl);
 	return ret;
 }
 
@@ -1224,7 +1234,7 @@ struct page *follow_trans_huge_pmd(struct vm_area_struct *vma,
 	struct mm_struct *mm = vma->vm_mm;
 	struct page *page = NULL;
 
-	assert_spin_locked(&mm->page_table_lock);
+	assert_spin_locked(pmd_lockptr(mm, pmd));
 
 	if (flags & FOLL_WRITE && !pmd_write(*pmd))
 		goto out;
@@ -1271,6 +1281,7 @@ out:
 int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 				unsigned long addr, pmd_t pmd, pmd_t *pmdp)
 {
+	spinlock_t *ptl;
 	struct anon_vma *anon_vma = NULL;
 	struct page *page;
 	unsigned long haddr = addr & HPAGE_PMD_MASK;
@@ -1280,7 +1291,7 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	bool migrated = false;
 	int flags = 0;
 
-	spin_lock(&mm->page_table_lock);
+	ptl = pmd_lock(mm, pmdp);
 	if (unlikely(!pmd_same(pmd, *pmdp)))
 		goto out_unlock;
 
@@ -1318,7 +1329,7 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 		 * relock and check_same as the page may no longer be mapped.
 		 * As the fault is being retried, do not account for it.
 		 */
-		spin_unlock(&mm->page_table_lock);
+		spin_unlock(ptl);
 		wait_on_page_locked(page);
 		page_nid = -1;
 		goto out;
@@ -1326,13 +1337,13 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 
 	/* Page is misplaced, serialise migrations and parallel THP splits */
 	get_page(page);
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(ptl);
 	if (!page_locked)
 		lock_page(page);
 	anon_vma = page_lock_anon_vma_read(page);
 
 	/* Confirm the PMD did not change while page_table_lock was released */
-	spin_lock(&mm->page_table_lock);
+	spin_lock(ptl);
 	if (unlikely(!pmd_same(pmd, *pmdp))) {
 		unlock_page(page);
 		put_page(page);
@@ -1344,7 +1355,7 @@ int do_huge_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma,
 	 * Migrate the THP to the requested node, returns with page unlocked
 	 * and pmd_numa cleared.
 	 */
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(ptl);
 	migrated = migrate_misplaced_transhuge_page(mm, vma,
 				pmdp, pmd, addr, page, target_nid);
 	if (migrated) {
@@ -1361,7 +1372,7 @@ clear_pmdnuma:
 	update_mmu_cache_pmd(vma, addr, pmdp);
 	unlock_page(page);
 out_unlock:
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(ptl);
 
 out:
 	if (anon_vma)
@@ -2371,7 +2382,7 @@ static void collapse_huge_page(struct mm_struct *mm,
 	pte_t *pte;
 	pgtable_t pgtable;
 	struct page *new_page;
-	spinlock_t *ptl;
+	spinlock_t *pmd_ptl, *pte_ptl;
 	int isolated;
 	unsigned long hstart, hend;
 	unsigned long mmun_start;	/* For mmu_notifiers */
@@ -2414,12 +2425,12 @@ static void collapse_huge_page(struct mm_struct *mm,
 	anon_vma_lock_write(vma->anon_vma);
 
 	pte = pte_offset_map(pmd, address);
-	ptl = pte_lockptr(mm, pmd);
+	pte_ptl = pte_lockptr(mm, pmd);
 
 	mmun_start = address;
 	mmun_end   = address + HPAGE_PMD_SIZE;
 	mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end);
-	spin_lock(&mm->page_table_lock); /* probably unnecessary */
+	pmd_ptl = pmd_lock(mm, pmd); /* probably unnecessary */
 	/*
 	 * After this gup_fast can't run anymore. This also removes
 	 * any huge TLB entry from the CPU so we won't allow
@@ -2427,16 +2438,16 @@ static void collapse_huge_page(struct mm_struct *mm,
 	 * to avoid the risk of CPU bugs in that area.
 	 */
 	_pmd = pmdp_clear_flush(vma, address, pmd);
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(pmd_ptl);
 	mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
 
-	spin_lock(ptl);
+	spin_lock(pte_ptl);
 	isolated = __collapse_huge_page_isolate(vma, address, pte);
-	spin_unlock(ptl);
+	spin_unlock(pte_ptl);
 
 	if (unlikely(!isolated)) {
 		pte_unmap(pte);
-		spin_lock(&mm->page_table_lock);
+		spin_lock(pmd_ptl);
 		BUG_ON(!pmd_none(*pmd));
 		/*
 		 * We can only use set_pmd_at when establishing
@@ -2444,7 +2455,7 @@ static void collapse_huge_page(struct mm_struct *mm,
 		 * points to regular pagetables. Use pmd_populate for that
 		 */
 		pmd_populate(mm, pmd, pmd_pgtable(_pmd));
-		spin_unlock(&mm->page_table_lock);
+		spin_unlock(pmd_ptl);
 		anon_vma_unlock_write(vma->anon_vma);
 		goto out;
 	}
@@ -2455,7 +2466,7 @@ static void collapse_huge_page(struct mm_struct *mm,
 	 */
 	anon_vma_unlock_write(vma->anon_vma);
 
-	__collapse_huge_page_copy(pte, new_page, vma, address, ptl);
+	__collapse_huge_page_copy(pte, new_page, vma, address, pte_ptl);
 	pte_unmap(pte);
 	__SetPageUptodate(new_page);
 	pgtable = pmd_pgtable(_pmd);
@@ -2470,13 +2481,13 @@ static void collapse_huge_page(struct mm_struct *mm,
 	 */
 	smp_wmb();
 
-	spin_lock(&mm->page_table_lock);
+	spin_lock(pmd_ptl);
 	BUG_ON(!pmd_none(*pmd));
 	page_add_new_anon_rmap(new_page, vma, address);
 	pgtable_trans_huge_deposit(mm, pmd, pgtable);
 	set_pmd_at(mm, address, pmd, _pmd);
 	update_mmu_cache_pmd(vma, address, pmd);
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(pmd_ptl);
 
 	*hpage = NULL;
 
@@ -2805,6 +2816,7 @@ static void __split_huge_zero_page_pmd(struct vm_area_struct *vma,
 void __split_huge_page_pmd(struct vm_area_struct *vma, unsigned long address,
 		pmd_t *pmd)
 {
+	spinlock_t *ptl;
 	struct page *page;
 	struct mm_struct *mm = vma->vm_mm;
 	unsigned long haddr = address & HPAGE_PMD_MASK;
@@ -2817,22 +2829,22 @@ void __split_huge_page_pmd(struct vm_area_struct *vma, unsigned long address,
 	mmun_end   = haddr + HPAGE_PMD_SIZE;
 again:
 	mmu_notifier_invalidate_range_start(mm, mmun_start, mmun_end);
-	spin_lock(&mm->page_table_lock);
+	ptl = pmd_lock(mm, pmd);
 	if (unlikely(!pmd_trans_huge(*pmd))) {
-		spin_unlock(&mm->page_table_lock);
+		spin_unlock(ptl);
 		mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
 		return;
 	}
 	if (is_huge_zero_pmd(*pmd)) {
 		__split_huge_zero_page_pmd(vma, haddr, pmd);
-		spin_unlock(&mm->page_table_lock);
+		spin_unlock(ptl);
 		mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
 		return;
 	}
 	page = pmd_page(*pmd);
 	VM_BUG_ON(!page_count(page));
 	get_page(page);
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(ptl);
 	mmu_notifier_invalidate_range_end(mm, mmun_start, mmun_end);
 
 	split_huge_page(page);
diff --git a/mm/memory.c b/mm/memory.c
index 0b5a93a49f27..d05c6b10e926 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -550,6 +550,7 @@ void free_pgtables(struct mmu_gather *tlb, struct vm_area_struct *vma,
 int __pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma,
 		pmd_t *pmd, unsigned long address)
 {
+	spinlock_t *ptl;
 	pgtable_t new = pte_alloc_one(mm, address);
 	int wait_split_huge_page;
 	if (!new)
@@ -570,7 +571,7 @@ int __pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma,
 	 */
 	smp_wmb(); /* Could be smp_wmb__xxx(before|after)_spin_lock */
 
-	spin_lock(&mm->page_table_lock);
+	ptl = pmd_lock(mm, pmd);
 	wait_split_huge_page = 0;
 	if (likely(pmd_none(*pmd))) {	/* Has another populated it ? */
 		atomic_long_inc(&mm->nr_ptes);
@@ -578,7 +579,7 @@ int __pte_alloc(struct mm_struct *mm, struct vm_area_struct *vma,
 		new = NULL;
 	} else if (unlikely(pmd_trans_splitting(*pmd)))
 		wait_split_huge_page = 1;
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(ptl);
 	if (new)
 		pte_free(mm, new);
 	if (wait_split_huge_page)
@@ -1516,20 +1517,20 @@ struct page *follow_page_mask(struct vm_area_struct *vma,
 			split_huge_page_pmd(vma, address, pmd);
 			goto split_fallthrough;
 		}
-		spin_lock(&mm->page_table_lock);
+		ptl = pmd_lock(mm, pmd);
 		if (likely(pmd_trans_huge(*pmd))) {
 			if (unlikely(pmd_trans_splitting(*pmd))) {
-				spin_unlock(&mm->page_table_lock);
+				spin_unlock(ptl);
 				wait_split_huge_page(vma->anon_vma, pmd);
 			} else {
 				page = follow_trans_huge_pmd(vma, address,
 							     pmd, flags);
-				spin_unlock(&mm->page_table_lock);
+				spin_unlock(ptl);
 				*page_mask = HPAGE_PMD_NR - 1;
 				goto out;
 			}
 		} else
-			spin_unlock(&mm->page_table_lock);
+			spin_unlock(ptl);
 		/* fall through */
 	}
 split_fallthrough:
diff --git a/mm/migrate.c b/mm/migrate.c
index 01f45cefa4cd..316e720a2023 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -1667,6 +1667,7 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm,
 				unsigned long address,
 				struct page *page, int node)
 {
+	spinlock_t *ptl;
 	unsigned long haddr = address & HPAGE_PMD_MASK;
 	pg_data_t *pgdat = NODE_DATA(node);
 	int isolated = 0;
@@ -1706,9 +1707,9 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm,
 	WARN_ON(PageLRU(new_page));
 
 	/* Recheck the target PMD */
-	spin_lock(&mm->page_table_lock);
+	ptl = pmd_lock(mm, pmd);
 	if (unlikely(!pmd_same(*pmd, entry))) {
-		spin_unlock(&mm->page_table_lock);
+		spin_unlock(ptl);
 
 		/* Reverse changes made by migrate_page_copy() */
 		if (TestClearPageActive(new_page))
@@ -1753,7 +1754,7 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm,
 	 * before it's fully transferred to the new page.
 	 */
 	mem_cgroup_end_migration(memcg, page, new_page, true);
-	spin_unlock(&mm->page_table_lock);
+	spin_unlock(ptl);
 
 	unlock_page(new_page);
 	unlock_page(page);
diff --git a/mm/pgtable-generic.c b/mm/pgtable-generic.c
index 41fee3e5d570..cbb38545d9d6 100644
--- a/mm/pgtable-generic.c
+++ b/mm/pgtable-generic.c
@@ -151,7 +151,7 @@ void pmdp_splitting_flush(struct vm_area_struct *vma, unsigned long address,
 void pgtable_trans_huge_deposit(struct mm_struct *mm, pmd_t *pmdp,
 				pgtable_t pgtable)
 {
-	assert_spin_locked(&mm->page_table_lock);
+	assert_spin_locked(pmd_lockptr(mm, pmdp));
 
 	/* FIFO */
 	if (!pmd_huge_pte(mm, pmdp))
@@ -170,7 +170,7 @@ pgtable_t pgtable_trans_huge_withdraw(struct mm_struct *mm, pmd_t *pmdp)
 {
 	pgtable_t pgtable;
 
-	assert_spin_locked(&mm->page_table_lock);
+	assert_spin_locked(pmd_lockptr(mm, pmdp));
 
 	/* FIFO */
 	pgtable = pmd_huge_pte(mm, pmdp);
-- 
cgit 


From e009bb30c8df8a52a9622b616b67436b6a03a0cd Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:07 -0800
Subject: mm: implement split page table lock for PMD level

The basic idea is the same as with PTE level: the lock is embedded into
struct page of table's page.

We can't use mm->pmd_huge_pte to store pgtables for THP, since we don't
take mm->page_table_lock anymore.  Let's reuse page->lru of table's page
for that.

pgtable_pmd_page_ctor() returns true, if initialization is successful
and false otherwise.  Current implementation never fails, but assumption
that constructor can fail will help to port it to -rt where spinlock_t
is rather huge and cannot be embedded into struct page -- dynamic
allocation is required.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Tested-by: Alex Thorlton <athorlton@sgi.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "Eric W . Biederman" <ebiederm@xmission.com>
Cc: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Dave Jones <davej@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Hugh Dickins <hughd@google.com>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/mm.h       | 32 ++++++++++++++++++++++++++++++++
 include/linux/mm_types.h |  7 ++++++-
 kernel/fork.c            |  4 ++--
 mm/Kconfig               |  3 +++
 4 files changed, 43 insertions(+), 3 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 861cad53b744..255750d9b1be 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1378,13 +1378,45 @@ static inline void pgtable_page_dtor(struct page *page)
 	((unlikely(pmd_none(*(pmd))) && __pte_alloc_kernel(pmd, address))? \
 		NULL: pte_offset_kernel(pmd, address))
 
+#if USE_SPLIT_PMD_PTLOCKS
+
+static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd)
+{
+	return &virt_to_page(pmd)->ptl;
+}
+
+static inline bool pgtable_pmd_page_ctor(struct page *page)
+{
+	spin_lock_init(&page->ptl);
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+	page->pmd_huge_pte = NULL;
+#endif
+	return true;
+}
+
+static inline void pgtable_pmd_page_dtor(struct page *page)
+{
+#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+	VM_BUG_ON(page->pmd_huge_pte);
+#endif
+}
+
+#define pmd_huge_pte(mm, pmd) (virt_to_page(pmd)->pmd_huge_pte)
+
+#else
+
 static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd)
 {
 	return &mm->page_table_lock;
 }
 
+static inline bool pgtable_pmd_page_ctor(struct page *page) { return true; }
+static inline void pgtable_pmd_page_dtor(struct page *page) {}
+
 #define pmd_huge_pte(mm, pmd) ((mm)->pmd_huge_pte)
 
+#endif
+
 static inline spinlock_t *pmd_lock(struct mm_struct *mm, pmd_t *pmd)
 {
 	spinlock_t *ptl = pmd_lockptr(mm, pmd);
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 566df579c51f..934261099975 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -24,6 +24,8 @@
 struct address_space;
 
 #define USE_SPLIT_PTE_PTLOCKS	(NR_CPUS >= CONFIG_SPLIT_PTLOCK_CPUS)
+#define USE_SPLIT_PMD_PTLOCKS	(USE_SPLIT_PTE_PTLOCKS && \
+		IS_ENABLED(CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK))
 
 /*
  * Each physical page in the system has a struct page associated with
@@ -63,6 +65,9 @@ struct page {
 						 * this page is only used to
 						 * free other pages.
 						 */
+#if defined(CONFIG_TRANSPARENT_HUGEPAGE) && USE_SPLIT_PMD_PTLOCKS
+		pgtable_t pmd_huge_pte; /* protected by page->ptl */
+#endif
 		};
 
 		union {
@@ -406,7 +411,7 @@ struct mm_struct {
 #ifdef CONFIG_MMU_NOTIFIER
 	struct mmu_notifier_mm *mmu_notifier_mm;
 #endif
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+#if defined(CONFIG_TRANSPARENT_HUGEPAGE) && !USE_SPLIT_PMD_PTLOCKS
 	pgtable_t pmd_huge_pte; /* protected by page_table_lock */
 #endif
 #ifdef CONFIG_CPUMASK_OFFSTACK
diff --git a/kernel/fork.c b/kernel/fork.c
index e2520756e005..728d5be9548c 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -560,7 +560,7 @@ static void check_mm(struct mm_struct *mm)
 					  "mm:%p idx:%d val:%ld\n", mm, i, x);
 	}
 
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+#if defined(CONFIG_TRANSPARENT_HUGEPAGE) && !USE_SPLIT_PMD_PTLOCKS
 	VM_BUG_ON(mm->pmd_huge_pte);
 #endif
 }
@@ -814,7 +814,7 @@ struct mm_struct *dup_mm(struct task_struct *tsk)
 	memcpy(mm, oldmm, sizeof(*mm));
 	mm_init_cpumask(mm);
 
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
+#if defined(CONFIG_TRANSPARENT_HUGEPAGE) && !USE_SPLIT_PMD_PTLOCKS
 	mm->pmd_huge_pte = NULL;
 #endif
 	if (!mm_init(mm, tsk))
diff --git a/mm/Kconfig b/mm/Kconfig
index c28d247e524a..7aa02def4666 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -222,6 +222,9 @@ config SPLIT_PTLOCK_CPUS
 	default "999999" if !64BIT && GENERIC_LOCKBREAK
 	default "4"
 
+config ARCH_ENABLE_SPLIT_PMD_PTLOCK
+	boolean
+
 #
 # support for memory balloon compaction
 config BALLOON_COMPACTION
-- 
cgit 


From 9491846fca57e9326b6673716c386b76fc13ebca Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:10 -0800
Subject: x86, mm: enable split page table lock for PMD level

Enable PMD split page table lock for X86_64 and PAE.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Tested-by: Alex Thorlton <athorlton@sgi.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: "Eric W . Biederman" <ebiederm@xmission.com>
Cc: "Paul E . McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Dave Jones <davej@redhat.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Robin Holt <robinmholt@gmail.com>
Cc: Sedat Dilek <sedat.dilek@gmail.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Hugh Dickins <hughd@google.com>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/x86/Kconfig               |  4 ++++
 arch/x86/include/asm/pgalloc.h | 11 ++++++++++-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 6e3e1cb3f6a0..af5513e5798a 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1885,6 +1885,10 @@ config USE_PERCPU_NUMA_NODE_ID
 	def_bool y
 	depends on NUMA
 
+config ARCH_ENABLE_SPLIT_PMD_PTLOCK
+	def_bool y
+	depends on X86_64 || X86_PAE
+
 menu "Power management and ACPI options"
 
 config ARCH_HIBERNATION_HEADER
diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h
index b4389a468fb6..c4412e972bbd 100644
--- a/arch/x86/include/asm/pgalloc.h
+++ b/arch/x86/include/asm/pgalloc.h
@@ -80,12 +80,21 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
 #if PAGETABLE_LEVELS > 2
 static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
 {
-	return (pmd_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
+	struct page *page;
+	page = alloc_pages(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO, 0);
+	if (!page)
+		return NULL;
+	if (!pgtable_pmd_page_ctor(page)) {
+		__free_pages(page, 0);
+		return NULL;
+	}
+	return (pmd_t *)page_address(page);
 }
 
 static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd)
 {
 	BUG_ON((unsigned long)pmd & (PAGE_SIZE-1));
+	pgtable_pmd_page_dtor(virt_to_page(pmd));
 	free_page((unsigned long)pmd);
 }
 
-- 
cgit 


From 09ef4939850aa81e3822b5dfb9ba2ada5e565816 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:13 -0800
Subject: x86: add missed pgtable_pmd_page_ctor/dtor calls for preallocated
 pmds

In split page table lock case, we embed spinlock_t into struct page.
For obvious reason, we don't want to increase size of struct page if
spinlock_t is too big, like with DEBUG_SPINLOCK or DEBUG_LOCK_ALLOC or
on -rt kernel.  So we disable split page table lock, if spinlock_t is
too big.

This patchset allows to allocate the lock dynamically if spinlock_t is
big.  In this page->ptl is used to store pointer to spinlock instead of
spinlock itself.  It costs additional cache line for indirect access,
but fix page fault scalability for multi-threaded applications.

LOCK_STAT depends on DEBUG_SPINLOCK, so on current kernel enabling
LOCK_STAT to analyse scalability issues breaks scalability.  ;)

The patchset mostly fixes this.  Results for ./thp_memscale -c 80 -b 512M
on 4-socket machine:

baseline, no CONFIG_LOCK_STAT:	9.115460703 seconds time elapsed
baseline, CONFIG_LOCK_STAT=y:	53.890567123 seconds time elapsed
patched, no CONFIG_LOCK_STAT:	8.852250368 seconds time elapsed
patched, CONFIG_LOCK_STAT=y:	11.069770759 seconds time elapsed

Patch count is scary, but most of them trivial. Overview:

 Patches 1-4	Few bug fixes. No dependencies to other patches.
		Probably should applied as soon as possible.

 Patch 5	Changes signature of pgtable_page_ctor(). We will use it
		for dynamic lock allocation, so it can fail.

 Patches 6-8	Add missing constructor/destructor calls on few archs.
		It's fixes NR_PAGETABLE accounting and prepare to use
		split ptl.

 Patches 9-33	Add pgtable_page_ctor() fail handling to all archs.

 Patches 34	Finally adds support of dynamically-allocated page->pte.
		Also contains documentation for split page table lock.

This patch (of 34):

I've missed that we preallocate few pmds on pgd_alloc() if X86_PAE
enabled.  Let's add missed constructor/destructor calls.

I haven't noticed it during testing since prep_new_page() clears
page->mapping and therefore page->ptl.  It's effectively equal to
spin_lock_init(&page->ptl).

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Howells <dhowells@redhat.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Jonas Bonn <jonas@southpole.se>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/x86/mm/pgtable.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index dfa537a03be1..1a7d21342e02 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -189,8 +189,10 @@ static void free_pmds(pmd_t *pmds[])
 	int i;
 
 	for(i = 0; i < PREALLOCATED_PMDS; i++)
-		if (pmds[i])
+		if (pmds[i]) {
+			pgtable_pmd_page_dtor(virt_to_page(pmds[i]));
 			free_page((unsigned long)pmds[i]);
+		}
 }
 
 static int preallocate_pmds(pmd_t *pmds[])
@@ -200,8 +202,13 @@ static int preallocate_pmds(pmd_t *pmds[])
 
 	for(i = 0; i < PREALLOCATED_PMDS; i++) {
 		pmd_t *pmd = (pmd_t *)__get_free_page(PGALLOC_GFP);
-		if (pmd == NULL)
+		if (!pmd)
+			failed = true;
+		if (pmd && !pgtable_pmd_page_ctor(virt_to_page(pmd))) {
+			free_page((unsigned long)pmds[i]);
+			pmd = NULL;
 			failed = true;
+		}
 		pmds[i] = pmd;
 	}
 
-- 
cgit 


From 26db39027c00744107acf184527010a1e05907e7 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:17 -0800
Subject: cris: fix potential NULL-pointer dereference

Add missing check for memory allocation fail.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Mikael Starvik <starvik@axis.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/cris/include/asm/pgalloc.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/cris/include/asm/pgalloc.h b/arch/cris/include/asm/pgalloc.h
index 6da975db112f..d9504d38c276 100644
--- a/arch/cris/include/asm/pgalloc.h
+++ b/arch/cris/include/asm/pgalloc.h
@@ -32,6 +32,8 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addres
 {
 	struct page *pte;
 	pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
+	if (!pte)
+		return NULL;
 	pgtable_page_ctor(pte);
 	return pte;
 }
-- 
cgit 


From fecf3743b824ce4eb275ed4a1d6aee9494f6a966 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:18 -0800
Subject: m32r: fix potential NULL-pointer dereference

Add missing check for memory allocation fail.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/m32r/include/asm/pgalloc.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/m32r/include/asm/pgalloc.h b/arch/m32r/include/asm/pgalloc.h
index 0fc736198979..ac4208bcc5ad 100644
--- a/arch/m32r/include/asm/pgalloc.h
+++ b/arch/m32r/include/asm/pgalloc.h
@@ -43,6 +43,8 @@ static __inline__ pgtable_t pte_alloc_one(struct mm_struct *mm,
 {
 	struct page *pte = alloc_page(GFP_KERNEL|__GFP_ZERO);
 
+	if (!pte)
+		return NULL;
 	pgtable_page_ctor(pte);
 	return pte;
 }
-- 
cgit 


From f8c6d30b766fc8eb83f5b7983ff8a5a9b3189365 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:19 -0800
Subject: xtensa: fix potential NULL-pointer dereference

Add missing check for memory allocation fail.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/xtensa/include/asm/pgalloc.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/xtensa/include/asm/pgalloc.h b/arch/xtensa/include/asm/pgalloc.h
index cf914c8c249a..037671a655dc 100644
--- a/arch/xtensa/include/asm/pgalloc.h
+++ b/arch/xtensa/include/asm/pgalloc.h
@@ -51,9 +51,13 @@ static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
 					unsigned long addr)
 {
+	pte_t *pte;
 	struct page *page;
 
-	page = virt_to_page(pte_alloc_one_kernel(mm, addr));
+	pte = pte_alloc_one_kernel(mm, addr);
+	if (!pte)
+		return NULL;
+	page = virt_to_page(pte);
 	pgtable_page_ctor(page);
 	return page;
 }
-- 
cgit 


From 390f44e2aa2ab83f08231d7d05f066dc3494490e Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:20 -0800
Subject: mm: allow pgtable_page_ctor() to fail

Change pgtable_page_ctor() return type from void to bool.  Returns true,
if initialization is successful and false otherwise.

Current implementation never fails, but it will change later.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/mm.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 255750d9b1be..e855351c3361 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1338,10 +1338,11 @@ static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long a
 #define pte_lockptr(mm, pmd)	({(void)(pmd); &(mm)->page_table_lock;})
 #endif /* USE_SPLIT_PTE_PTLOCKS */
 
-static inline void pgtable_page_ctor(struct page *page)
+static inline bool pgtable_page_ctor(struct page *page)
 {
 	pte_lock_init(page);
 	inc_zone_page_state(page, NR_PAGETABLE);
+	return true;
 }
 
 static inline void pgtable_page_dtor(struct page *page)
-- 
cgit 


From 8abe73465660f12dee03871f681175f4dae62e7f Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:21 -0800
Subject: microblaze: add missing pgtable_page_ctor/dtor calls

It will fix NR_PAGETABLE accounting.  It's also required if the arch is
going ever support split ptl.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Michal Simek <monstr@monstr.eu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/microblaze/include/asm/pgalloc.h | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h
index ebd35792482c..7fdf7fabc7d7 100644
--- a/arch/microblaze/include/asm/pgalloc.h
+++ b/arch/microblaze/include/asm/pgalloc.h
@@ -122,8 +122,13 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
 #endif
 
 	ptepage = alloc_pages(flags, 0);
-	if (ptepage)
-		clear_highpage(ptepage);
+	if (!ptepage)
+		return NULL;
+	clear_highpage(ptepage);
+	if (!pgtable_page_ctor(ptepage)) {
+		__free_page(ptepage);
+		return NULL;
+	}
 	return ptepage;
 }
 
@@ -158,8 +163,9 @@ extern inline void pte_free_slow(struct page *ptepage)
 	__free_page(ptepage);
 }
 
-extern inline void pte_free(struct mm_struct *mm, struct page *ptepage)
+static inline void pte_free(struct mm_struct *mm, struct page *ptepage)
 {
+	pgtable_page_dtor(ptepage);
 	__free_page(ptepage);
 }
 
-- 
cgit 


From 0470d4aa29eb0a49554fe71e986e6d6c38dd85cb Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:22 -0800
Subject: mn10300: add missing pgtable_page_ctor/dtor calls

It will fix NR_PAGETABLE accounting.  It's also required if the arch is
going ever support split ptl.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: David Howells <dhowells@redhat.com>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/mn10300/include/asm/pgalloc.h | 1 +
 arch/mn10300/mm/pgtable.c          | 9 +++++++--
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/arch/mn10300/include/asm/pgalloc.h b/arch/mn10300/include/asm/pgalloc.h
index 146bacf193ea..0f25d5fa86f3 100644
--- a/arch/mn10300/include/asm/pgalloc.h
+++ b/arch/mn10300/include/asm/pgalloc.h
@@ -46,6 +46,7 @@ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 
 static inline void pte_free(struct mm_struct *mm, struct page *pte)
 {
+	pgtable_page_dtor(pte);
 	__free_page(pte);
 }
 
diff --git a/arch/mn10300/mm/pgtable.c b/arch/mn10300/mm/pgtable.c
index bd9ada693f95..e77a7c728081 100644
--- a/arch/mn10300/mm/pgtable.c
+++ b/arch/mn10300/mm/pgtable.c
@@ -78,8 +78,13 @@ struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
 #else
 	pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT, 0);
 #endif
-	if (pte)
-		clear_highpage(pte);
+	if (!pte)
+		return NULL;
+	clear_highpage(pte);
+	if (!pgtable_page_ctor(pte)) {
+		__free_page(pte);
+		return NULL;
+	}
 	return pte;
 }
 
-- 
cgit 


From b3d59c6eb49476110b4a76bfbae63daae1cda268 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:23 -0800
Subject: openrisc: add missing pgtable_page_ctor/dtor calls

It will fix NR_PAGETABLE accounting.  It's also required if the arch is
going ever support split ptl.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Jonas Bonn <jonas@southpole.se>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/openrisc/include/asm/pgalloc.h | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/arch/openrisc/include/asm/pgalloc.h b/arch/openrisc/include/asm/pgalloc.h
index 05c39ecd2efd..21484e5b9e9a 100644
--- a/arch/openrisc/include/asm/pgalloc.h
+++ b/arch/openrisc/include/asm/pgalloc.h
@@ -78,8 +78,13 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
 {
 	struct page *pte;
 	pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT, 0);
-	if (pte)
-		clear_page(page_address(pte));
+	if (!pte)
+		return NULL;
+	clear_page(page_address(pte));
+	if (!pgtable_page_ctor(pte)) {
+		__free_page(pte);
+		return NULL;
+	}
 	return pte;
 }
 
@@ -90,6 +95,7 @@ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 
 static inline void pte_free(struct mm_struct *mm, struct page *pte)
 {
+	pgtable_page_dtor(pte);
 	__free_page(pte);
 }
 
-- 
cgit 


From 3fd681b68cd34eacb106b25fcb10bb202a3232c5 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:24 -0800
Subject: alpha: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: Matt Turner <mattst88@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/alpha/include/asm/pgalloc.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/alpha/include/asm/pgalloc.h b/arch/alpha/include/asm/pgalloc.h
index bc2a0daf2d92..aab14a019c20 100644
--- a/arch/alpha/include/asm/pgalloc.h
+++ b/arch/alpha/include/asm/pgalloc.h
@@ -72,7 +72,10 @@ pte_alloc_one(struct mm_struct *mm, unsigned long address)
 	if (!pte)
 		return NULL;
 	page = virt_to_page(pte);
-	pgtable_page_ctor(page);
+	if (!pgtable_page_ctor(page)) {
+		__free_page(page);
+		return NULL;
+	}
 	return page;
 }
 
-- 
cgit 


From ca6ec3bbaaaf5941e970314a2eb3680b9e7e698a Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:25 -0800
Subject: arc: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com> [for arch/arc bits]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/arc/include/asm/pgalloc.h | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/arch/arc/include/asm/pgalloc.h b/arch/arc/include/asm/pgalloc.h
index 36a9f20c21a3..81208bfd9dcb 100644
--- a/arch/arc/include/asm/pgalloc.h
+++ b/arch/arc/include/asm/pgalloc.h
@@ -105,11 +105,16 @@ static inline pgtable_t
 pte_alloc_one(struct mm_struct *mm, unsigned long address)
 {
 	pgtable_t pte_pg;
+	struct page *page;
 
 	pte_pg = __get_free_pages(GFP_KERNEL | __GFP_REPEAT, __get_order_pte());
-	if (pte_pg) {
-		memzero((void *)pte_pg, PTRS_PER_PTE * 4);
-		pgtable_page_ctor(virt_to_page(pte_pg));
+	if (!pte_pg)
+		return 0;
+	memzero((void *)pte_pg, PTRS_PER_PTE * 4);
+	page = virt_to_page(pte_pg);
+	if (!pgtable_page_ctor(page)) {
+		__free_page(page);
+		return 0;
 	}
 
 	return pte_pg;
-- 
cgit 


From affce5089a82a045274def17b44b13d10ab7c1d4 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:26 -0800
Subject: arm: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/arm/include/asm/pgalloc.h | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/arch/arm/include/asm/pgalloc.h b/arch/arm/include/asm/pgalloc.h
index 943504f53f57..78a779361682 100644
--- a/arch/arm/include/asm/pgalloc.h
+++ b/arch/arm/include/asm/pgalloc.h
@@ -102,12 +102,14 @@ pte_alloc_one(struct mm_struct *mm, unsigned long addr)
 #else
 	pte = alloc_pages(PGALLOC_GFP, 0);
 #endif
-	if (pte) {
-		if (!PageHighMem(pte))
-			clean_pte_table(page_address(pte));
-		pgtable_page_ctor(pte);
+	if (!pte)
+		return NULL;
+	if (!PageHighMem(pte))
+		clean_pte_table(page_address(pte));
+	if (!pgtable_page_ctor(pte)) {
+		__free_page(pte);
+		return NULL;
 	}
-
 	return pte;
 }
 
-- 
cgit 


From d97a22913808b191c95fbfc51e6405c4504979e6 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:27 -0800
Subject: arm64: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/arm64/include/asm/pgalloc.h | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/arm64/include/asm/pgalloc.h b/arch/arm64/include/asm/pgalloc.h
index f214069ec5d5..9bea6e74a001 100644
--- a/arch/arm64/include/asm/pgalloc.h
+++ b/arch/arm64/include/asm/pgalloc.h
@@ -63,9 +63,12 @@ pte_alloc_one(struct mm_struct *mm, unsigned long addr)
 	struct page *pte;
 
 	pte = alloc_pages(PGALLOC_GFP, 0);
-	if (pte)
-		pgtable_page_ctor(pte);
-
+	if (!pte)
+		return NULL;
+	if (!pgtable_page_ctor(pte)) {
+		__free_page(pte);
+		return NULL;
+	}
 	return pte;
 }
 
-- 
cgit 


From 2cb6182bb6153f685c37773687e63094317b1eeb Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:28 -0800
Subject: avr32: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/avr32/include/asm/pgalloc.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/avr32/include/asm/pgalloc.h b/arch/avr32/include/asm/pgalloc.h
index bc7e8ae479ee..1aba19d68c5e 100644
--- a/arch/avr32/include/asm/pgalloc.h
+++ b/arch/avr32/include/asm/pgalloc.h
@@ -68,7 +68,10 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
 		return NULL;
 
 	page = virt_to_page(pg);
-	pgtable_page_ctor(page);
+	if (!pgtable_page_ctor(page)) {
+		quicklist_free(QUICK_PT, NULL, pg);
+		return NULL;
+	}
 
 	return page;
 }
-- 
cgit 


From 0da5303bdb55e67963e8b53ebf3a2aa75051cab4 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:29 -0800
Subject: cris: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Mikael Starvik <starvik@axis.com>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/cris/include/asm/pgalloc.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/cris/include/asm/pgalloc.h b/arch/cris/include/asm/pgalloc.h
index d9504d38c276..235ece437ddd 100644
--- a/arch/cris/include/asm/pgalloc.h
+++ b/arch/cris/include/asm/pgalloc.h
@@ -34,7 +34,10 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addres
 	pte = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
 	if (!pte)
 		return NULL;
-	pgtable_page_ctor(pte);
+	if (!pgtable_page_ctor(pte)) {
+		__free_page(pte);
+		return NULL;
+	}
 	return pte;
 }
 
-- 
cgit 


From 3b9cf77d1aad657dd44ab0f0368978e87b64ad23 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:30 -0800
Subject: frv: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/frv/mm/pgalloc.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/arch/frv/mm/pgalloc.c b/arch/frv/mm/pgalloc.c
index f6084bc524e8..41907d25ed38 100644
--- a/arch/frv/mm/pgalloc.c
+++ b/arch/frv/mm/pgalloc.c
@@ -37,11 +37,15 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
 #else
 	page = alloc_pages(GFP_KERNEL|__GFP_REPEAT, 0);
 #endif
-	if (page) {
-		clear_highpage(page);
-		pgtable_page_ctor(page);
-		flush_dcache_page(page);
+	if (!page)
+		return NULL;
+
+	clear_highpage(page);
+	if (!pgtable_page_ctor(page)) {
+		__free_page(page);
+		return NULL;
 	}
+	flush_dcache_page(page);
 	return page;
 }
 
-- 
cgit 


From 5de1423d8901bed12f1b96acef27ac133592eaeb Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:31 -0800
Subject: hexagon: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Richard Kuo <rkuo@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/hexagon/include/asm/pgalloc.h | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/hexagon/include/asm/pgalloc.h b/arch/hexagon/include/asm/pgalloc.h
index 679bf6d66487..4c9d382d7798 100644
--- a/arch/hexagon/include/asm/pgalloc.h
+++ b/arch/hexagon/include/asm/pgalloc.h
@@ -65,10 +65,12 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
 	struct page *pte;
 
 	pte = alloc_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);
-
-	if (pte)
-		pgtable_page_ctor(pte);
-
+	if (!pte)
+		return NULL;
+	if (!pgtable_page_ctor(pte)) {
+		__free_page(pte);
+		return NULL;
+	}
 	return pte;
 }
 
-- 
cgit 


From ca973d86d4c5b70c32e7b91ce08f3e8e061e2535 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:32 -0800
Subject: ia64: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/ia64/include/asm/pgalloc.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/ia64/include/asm/pgalloc.h b/arch/ia64/include/asm/pgalloc.h
index 96a8d927db28..5767cdfc08db 100644
--- a/arch/ia64/include/asm/pgalloc.h
+++ b/arch/ia64/include/asm/pgalloc.h
@@ -91,7 +91,10 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long addr)
 	if (!pg)
 		return NULL;
 	page = virt_to_page(pg);
-	pgtable_page_ctor(page);
+	if (!pgtable_page_ctor(page)) {
+		quicklist_free(0, NULL, pg);
+		return NULL;
+	}
 	return page;
 }
 
-- 
cgit 


From 7251ab6b86179f195b3f4b56d57ce9dc7a725409 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:33 -0800
Subject: m32r: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/m32r/include/asm/pgalloc.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/m32r/include/asm/pgalloc.h b/arch/m32r/include/asm/pgalloc.h
index ac4208bcc5ad..2d55a064ccac 100644
--- a/arch/m32r/include/asm/pgalloc.h
+++ b/arch/m32r/include/asm/pgalloc.h
@@ -45,7 +45,10 @@ static __inline__ pgtable_t pte_alloc_one(struct mm_struct *mm,
 
 	if (!pte)
 		return NULL;
-	pgtable_page_ctor(pte);
+	if (!pgtable_page_ctor(pte)) {
+		__free_page(pte);
+		return NULL;
+	}
 	return pte;
 }
 
-- 
cgit 


From f84c914b986ed2ec4ffaa5672b423b1f6b65519d Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:34 -0800
Subject: m68k: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/m68k/include/asm/mcf_pgalloc.h      | 4 ++++
 arch/m68k/include/asm/motorola_pgalloc.h | 8 ++++++--
 arch/m68k/include/asm/sun3_pgalloc.h     | 5 ++++-
 3 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/arch/m68k/include/asm/mcf_pgalloc.h b/arch/m68k/include/asm/mcf_pgalloc.h
index 313f3dd23cdc..f9924fbcfe42 100644
--- a/arch/m68k/include/asm/mcf_pgalloc.h
+++ b/arch/m68k/include/asm/mcf_pgalloc.h
@@ -56,6 +56,10 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
 
 	if (!page)
 		return NULL;
+	if (!pgtable_page_ctor(page)) {
+		__free_page(page);
+		return NULL;
+	}
 
 	pte = kmap(page);
 	if (pte) {
diff --git a/arch/m68k/include/asm/motorola_pgalloc.h b/arch/m68k/include/asm/motorola_pgalloc.h
index 2f02f264e694..24bcba496c75 100644
--- a/arch/m68k/include/asm/motorola_pgalloc.h
+++ b/arch/m68k/include/asm/motorola_pgalloc.h
@@ -29,18 +29,22 @@ static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 
 static inline pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
 {
-	struct page *page = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
+	struct page *page;
 	pte_t *pte;
 
+	page = alloc_pages(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO, 0);
 	if(!page)
 		return NULL;
+	if (!pgtable_page_ctor(page)) {
+		__free_page(page);
+		return NULL;
+	}
 
 	pte = kmap(page);
 	__flush_page_to_ram(pte);
 	flush_tlb_kernel_page(pte);
 	nocache_page(pte);
 	kunmap(page);
-	pgtable_page_ctor(page);
 	return page;
 }
 
diff --git a/arch/m68k/include/asm/sun3_pgalloc.h b/arch/m68k/include/asm/sun3_pgalloc.h
index 48d80d5a666f..f868506e3350 100644
--- a/arch/m68k/include/asm/sun3_pgalloc.h
+++ b/arch/m68k/include/asm/sun3_pgalloc.h
@@ -59,7 +59,10 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
 		return NULL;
 
 	clear_highpage(page);
-	pgtable_page_ctor(page);
+	if (!pgtable_page_ctor(page)) {
+		__free_page(page);
+		return NULL;
+	}
 	return page;
 
 }
-- 
cgit 


From 855a30531806388cd63940cb03a18d6546404805 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:35 -0800
Subject: metag: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: James Hogan <james.hogan@imgtec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/metag/include/asm/pgalloc.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/metag/include/asm/pgalloc.h b/arch/metag/include/asm/pgalloc.h
index 275d9285141c..3104df0a4822 100644
--- a/arch/metag/include/asm/pgalloc.h
+++ b/arch/metag/include/asm/pgalloc.h
@@ -52,8 +52,12 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
 {
 	struct page *pte;
 	pte = alloc_pages(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO, 0);
-	if (pte)
-		pgtable_page_ctor(pte);
+	if (!pte)
+		return NULL;
+	if (!pgtable_page_ctor(pte)) {
+		__free_page(pte);
+		return NULL;
+	}
 	return pte;
 }
 
-- 
cgit 


From 3b5b51c1a7bd148e1d7721874849435d76728375 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:36 -0800
Subject: mips: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/mips/include/asm/pgalloc.h | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/mips/include/asm/pgalloc.h b/arch/mips/include/asm/pgalloc.h
index 881d18b4e298..b336037e8768 100644
--- a/arch/mips/include/asm/pgalloc.h
+++ b/arch/mips/include/asm/pgalloc.h
@@ -80,9 +80,12 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
 	struct page *pte;
 
 	pte = alloc_pages(GFP_KERNEL | __GFP_REPEAT, PTE_ORDER);
-	if (pte) {
-		clear_highpage(pte);
-		pgtable_page_ctor(pte);
+	if (!pte)
+		return NULL;
+	clear_highpage(pte);
+	if (!pgtable_page_ctor(pte)) {
+		__free_page(pte);
+		return NULL;
 	}
 	return pte;
 }
-- 
cgit 


From bc16640dce9035177c99d8fb11d3b94abe9f36c8 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:37 -0800
Subject: parisc: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Helge Deller <deller@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/parisc/include/asm/pgalloc.h | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/include/asm/pgalloc.h b/arch/parisc/include/asm/pgalloc.h
index fc987a1c12a8..f213f5b4c423 100644
--- a/arch/parisc/include/asm/pgalloc.h
+++ b/arch/parisc/include/asm/pgalloc.h
@@ -121,8 +121,12 @@ static inline pgtable_t
 pte_alloc_one(struct mm_struct *mm, unsigned long address)
 {
 	struct page *page = alloc_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
-	if (page)
-		pgtable_page_ctor(page);
+	if (!page)
+		return NULL;
+	if (!pgtable_page_ctor(page)) {
+		__free_page(page);
+		return NULL;
+	}
 	return page;
 }
 
-- 
cgit 


From 4f804943f99454ac79e0f448428447f1a72d09fc Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:38 -0800
Subject: powerpc: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/powerpc/include/asm/pgalloc-64.h | 5 ++++-
 arch/powerpc/mm/pgtable_32.c          | 5 ++++-
 arch/powerpc/mm/pgtable_64.c          | 7 ++++---
 3 files changed, 12 insertions(+), 5 deletions(-)

diff --git a/arch/powerpc/include/asm/pgalloc-64.h b/arch/powerpc/include/asm/pgalloc-64.h
index f65e27b09bd3..16cb92d215d2 100644
--- a/arch/powerpc/include/asm/pgalloc-64.h
+++ b/arch/powerpc/include/asm/pgalloc-64.h
@@ -91,7 +91,10 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
 	if (!pte)
 		return NULL;
 	page = virt_to_page(pte);
-	pgtable_page_ctor(page);
+	if (!pgtable_page_ctor(page)) {
+		__free_page(page);
+		return NULL;
+	}
 	return page;
 }
 
diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index 6c856fb8c15b..5b9601715289 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -121,7 +121,10 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
 	ptepage = alloc_pages(flags, 0);
 	if (!ptepage)
 		return NULL;
-	pgtable_page_ctor(ptepage);
+	if (!pgtable_page_ctor(ptepage)) {
+		__free_page(ptepage);
+		return NULL;
+	}
 	return ptepage;
 }
 
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index 536eec72c0f7..9d95786aa80f 100644
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -378,6 +378,10 @@ static pte_t *__alloc_for_cache(struct mm_struct *mm, int kernel)
 				       __GFP_REPEAT | __GFP_ZERO);
 	if (!page)
 		return NULL;
+	if (!kernel && !pgtable_page_ctor(page)) {
+		__free_page(page);
+		return NULL;
+	}
 
 	ret = page_address(page);
 	spin_lock(&mm->page_table_lock);
@@ -392,9 +396,6 @@ static pte_t *__alloc_for_cache(struct mm_struct *mm, int kernel)
 	}
 	spin_unlock(&mm->page_table_lock);
 
-	if (!kernel)
-		pgtable_page_ctor(page);
-
 	return (pte_t *)ret;
 }
 
-- 
cgit 


From e89cfa58a8358fdb4d4e79936c25222416ad415e Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:39 -0800
Subject: s390: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/s390/mm/pgtable.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 1ea18fcfa211..e794c88f699a 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -772,7 +772,11 @@ static inline unsigned long *page_table_alloc_pgste(struct mm_struct *mm,
 		__free_page(page);
 		return NULL;
 	}
-	pgtable_page_ctor(page);
+	if (!pgtable_page_ctor(page)) {
+		kfree(mp);
+		__free_page(page);
+		return NULL;
+	}
 	mp->vmaddr = vmaddr & PMD_MASK;
 	INIT_LIST_HEAD(&mp->mapper);
 	page->index = (unsigned long) mp;
@@ -902,7 +906,10 @@ unsigned long *page_table_alloc(struct mm_struct *mm, unsigned long vmaddr)
 		page = alloc_page(GFP_KERNEL|__GFP_REPEAT);
 		if (!page)
 			return NULL;
-		pgtable_page_ctor(page);
+		if (!pgtable_page_ctor(page)) {
+			__free_page(page);
+			return NULL;
+		}
 		atomic_set(&page->_mapcount, 1);
 		table = (unsigned long *) page_to_phys(page);
 		clear_table(table, _PAGE_INVALID, PAGE_SIZE);
-- 
cgit 


From 96da3a62ea1fef2d9dfa8eff97706603918d5f4d Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:40 -0800
Subject: score: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Chen Liqin <liqin.chen@sunplusct.com>
Acked-by: Lennox Wu <lennox.wu@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/score/include/asm/pgalloc.h | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/score/include/asm/pgalloc.h b/arch/score/include/asm/pgalloc.h
index 716b3fd1d863..2e067657db98 100644
--- a/arch/score/include/asm/pgalloc.h
+++ b/arch/score/include/asm/pgalloc.h
@@ -54,9 +54,12 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm,
 	struct page *pte;
 
 	pte = alloc_pages(GFP_KERNEL | __GFP_REPEAT, PTE_ORDER);
-	if (pte) {
-		clear_highpage(pte);
-		pgtable_page_ctor(pte);
+	if (!pte)
+		return NULL;
+	clear_highpage(pte);
+	if (!pgtable_page_ctor(pte)) {
+		__free_page(pte);
+		return NULL;
 	}
 	return pte;
 }
-- 
cgit 


From 478cf8ca013f9e33be978dee4d0a15906e5a030a Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:41 -0800
Subject: sh: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/sh/include/asm/pgalloc.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/sh/include/asm/pgalloc.h b/arch/sh/include/asm/pgalloc.h
index 8c00785c60d5..a33673b3687d 100644
--- a/arch/sh/include/asm/pgalloc.h
+++ b/arch/sh/include/asm/pgalloc.h
@@ -47,7 +47,10 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
 	if (!pg)
 		return NULL;
 	page = virt_to_page(pg);
-	pgtable_page_ctor(page);
+	if (!pgtable_page_ctor(page)) {
+		quicklist_free(QUICK_PT, NULL, pg);
+		return NULL;
+	}
 	return page;
 }
 
-- 
cgit 


From 1ae9ae5f7df726c67736c643c1f03f7bdfe748eb Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:42 -0800
Subject: sparc: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/sparc/mm/init_64.c | 11 ++++++-----
 arch/sparc/mm/srmmu.c   |  5 ++++-
 2 files changed, 10 insertions(+), 6 deletions(-)

diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index ed82edad1a39..d6de9353ee11 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -2519,12 +2519,13 @@ pgtable_t pte_alloc_one(struct mm_struct *mm,
 		return pte;
 
 	page = __alloc_for_cache(mm);
-	if (page) {
-		pgtable_page_ctor(page);
-		pte = (pte_t *) page_address(page);
+	if (!page)
+		return NULL;
+	if (!pgtable_page_ctor(page)) {
+		free_hot_cold_page(page, 0);
+		return NULL;
 	}
-
-	return pte;
+	return (pte_t *) page_address(page);
 }
 
 void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
diff --git a/arch/sparc/mm/srmmu.c b/arch/sparc/mm/srmmu.c
index 5d721df48a72..869023abe5a4 100644
--- a/arch/sparc/mm/srmmu.c
+++ b/arch/sparc/mm/srmmu.c
@@ -345,7 +345,10 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
 	if ((pte = (unsigned long)pte_alloc_one_kernel(mm, address)) == 0)
 		return NULL;
 	page = pfn_to_page(__nocache_pa(pte) >> PAGE_SHIFT);
-	pgtable_page_ctor(page);
+	if (!pgtable_page_ctor(page)) {
+		__free_page(page);
+		return NULL;
+	}
 	return page;
 }
 
-- 
cgit 


From 76b3aec332e74596c517e1198764a5aeb8ea8398 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:43 -0800
Subject: tile: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/tile/mm/pgtable.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/arch/tile/mm/pgtable.c b/arch/tile/mm/pgtable.c
index 4fd9ec0b58ed..5e86eac4bfae 100644
--- a/arch/tile/mm/pgtable.c
+++ b/arch/tile/mm/pgtable.c
@@ -241,6 +241,11 @@ struct page *pgtable_alloc_one(struct mm_struct *mm, unsigned long address,
 	if (p == NULL)
 		return NULL;
 
+	if (!pgtable_page_ctor(p)) {
+		__free_pages(p, L2_USER_PGTABLE_ORDER);
+		return NULL;
+	}
+
 	/*
 	 * Make every page have a page_count() of one, not just the first.
 	 * We don't use __GFP_COMP since it doesn't look like it works
@@ -251,7 +256,6 @@ struct page *pgtable_alloc_one(struct mm_struct *mm, unsigned long address,
 		inc_zone_page_state(p+i, NR_PAGETABLE);
 	}
 
-	pgtable_page_ctor(p);
 	return p;
 }
 
-- 
cgit 


From 647f884e67dd920e01046a1ae87aa2c2d315479a Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:44 -0800
Subject: um: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/um/kernel/mem.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/um/kernel/mem.c b/arch/um/kernel/mem.c
index 7ddb64baf327..8636e905426f 100644
--- a/arch/um/kernel/mem.c
+++ b/arch/um/kernel/mem.c
@@ -279,8 +279,12 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
 	struct page *pte;
 
 	pte = alloc_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO);
-	if (pte)
-		pgtable_page_ctor(pte);
+	if (!pte)
+		return NULL;
+	if (!pgtable_page_ctor(pte)) {
+		__free_page(pte);
+		return NULL;
+	}
 	return pte;
 }
 
-- 
cgit 


From e90bedbb8a847a0e6debe0e00b6f69b788fca92e Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:46 -0800
Subject: unicore32: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/unicore32/include/asm/pgalloc.h | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/arch/unicore32/include/asm/pgalloc.h b/arch/unicore32/include/asm/pgalloc.h
index 0213e373a895..2e02d1356fdf 100644
--- a/arch/unicore32/include/asm/pgalloc.h
+++ b/arch/unicore32/include/asm/pgalloc.h
@@ -51,12 +51,14 @@ pte_alloc_one(struct mm_struct *mm, unsigned long addr)
 	struct page *pte;
 
 	pte = alloc_pages(PGALLOC_GFP, 0);
-	if (pte) {
-		if (!PageHighMem(pte)) {
-			void *page = page_address(pte);
-			clean_dcache_area(page, PTRS_PER_PTE * sizeof(pte_t));
-		}
-		pgtable_page_ctor(pte);
+	if (!pte)
+		return NULL;
+	if (!PageHighMem(pte)) {
+		void *page = page_address(pte);
+		clean_dcache_area(page, PTRS_PER_PTE * sizeof(pte_t));
+	}
+	if (!pgtable_page_ctor(pte)) {
+		__free_page(pte);
 	}
 
 	return pte;
-- 
cgit 


From cecbd1b5afb01ed6ee14e14234b2e8c52e26c841 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:47 -0800
Subject: x86: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/x86/mm/pgtable.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 1a7d21342e02..a7cccb6d7fec 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -25,8 +25,12 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
 	struct page *pte;
 
 	pte = alloc_pages(__userpte_alloc_gfp, 0);
-	if (pte)
-		pgtable_page_ctor(pte);
+	if (!pte)
+		return NULL;
+	if (!pgtable_page_ctor(pte)) {
+		__free_page(pte);
+		return NULL;
+	}
 	return pte;
 }
 
-- 
cgit 


From 8f43123d170ad9a6760e424af5bde7569fdd8c12 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:48 -0800
Subject: xtensa: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/xtensa/include/asm/pgalloc.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/xtensa/include/asm/pgalloc.h b/arch/xtensa/include/asm/pgalloc.h
index 037671a655dc..b8774f1e21e6 100644
--- a/arch/xtensa/include/asm/pgalloc.h
+++ b/arch/xtensa/include/asm/pgalloc.h
@@ -58,7 +58,10 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
 	if (!pte)
 		return NULL;
 	page = virt_to_page(pte);
-	pgtable_page_ctor(page);
+	if (!pgtable_page_ctor(page)) {
+		kmem_cache_free(pgtable_cache, pte);
+		return NULL;
+	}
 	return page;
 }
 
-- 
cgit 


From 01058e70767de7b846588ef651c4d66e862f6823 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:49 -0800
Subject: iommu/arm-smmu: handle pgtable_page_ctor() fail

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/iommu/arm-smmu.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c
index 181c9ba929cd..2349d6272aef 100644
--- a/drivers/iommu/arm-smmu.c
+++ b/drivers/iommu/arm-smmu.c
@@ -1212,7 +1212,10 @@ static int arm_smmu_alloc_init_pte(struct arm_smmu_device *smmu, pmd_t *pmd,
 
 		arm_smmu_flush_pgtable(smmu, page_address(table),
 				       ARM_SMMU_PTE_HWTABLE_SIZE);
-		pgtable_page_ctor(table);
+		if (!pgtable_page_ctor(table)) {
+			__free_page(table);
+			return -ENOMEM;
+		}
 		pmd_populate(NULL, pmd, table);
 		arm_smmu_flush_pgtable(smmu, pmd, sizeof(*pmd));
 	}
-- 
cgit 


From f820e2805c7acb157a78438d07e47f4fc57fe679 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:50 -0800
Subject: xtensa: use buddy allocator for PTE table

At the moment xtensa uses slab allocator for PTE table.  It doesn't work
with enabled split page table lock: slab uses page->slab_cache and
page->first_page for its pages.  These fields share stroage with
page->ptl.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Chris Zankel <chris@zankel.net>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/xtensa/include/asm/pgalloc.h | 20 ++++++++++++--------
 arch/xtensa/include/asm/pgtable.h |  3 +--
 arch/xtensa/mm/mmu.c              | 20 --------------------
 3 files changed, 13 insertions(+), 30 deletions(-)

diff --git a/arch/xtensa/include/asm/pgalloc.h b/arch/xtensa/include/asm/pgalloc.h
index b8774f1e21e6..d38eb9237e64 100644
--- a/arch/xtensa/include/asm/pgalloc.h
+++ b/arch/xtensa/include/asm/pgalloc.h
@@ -38,14 +38,18 @@ static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
 	free_page((unsigned long)pgd);
 }
 
-/* Use a slab cache for the pte pages (see also sparc64 implementation) */
-
-extern struct kmem_cache *pgtable_cache;
-
 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 					 unsigned long address)
 {
-	return kmem_cache_alloc(pgtable_cache, GFP_KERNEL|__GFP_REPEAT);
+	pte_t *ptep;
+	int i;
+
+	ptep = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT);
+	if (!ptep)
+		return NULL;
+	for (i = 0; i < 1024; i++)
+		pte_clear(NULL, 0, ptep + i);
+	return ptep;
 }
 
 static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
@@ -59,7 +63,7 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
 		return NULL;
 	page = virt_to_page(pte);
 	if (!pgtable_page_ctor(page)) {
-		kmem_cache_free(pgtable_cache, pte);
+		__free_page(page);
 		return NULL;
 	}
 	return page;
@@ -67,13 +71,13 @@ static inline pgtable_t pte_alloc_one(struct mm_struct *mm,
 
 static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
 {
-	kmem_cache_free(pgtable_cache, pte);
+	free_page((unsigned long)pte);
 }
 
 static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
 {
 	pgtable_page_dtor(pte);
-	kmem_cache_free(pgtable_cache, page_address(pte));
+	__free_page(pte);
 }
 #define pmd_pgtable(pmd) pmd_page(pmd)
 
diff --git a/arch/xtensa/include/asm/pgtable.h b/arch/xtensa/include/asm/pgtable.h
index 0fdf5d043f82..216446295ada 100644
--- a/arch/xtensa/include/asm/pgtable.h
+++ b/arch/xtensa/include/asm/pgtable.h
@@ -220,12 +220,11 @@ extern unsigned long empty_zero_page[1024];
 #ifdef CONFIG_MMU
 extern pgd_t swapper_pg_dir[PAGE_SIZE/sizeof(pgd_t)];
 extern void paging_init(void);
-extern void pgtable_cache_init(void);
 #else
 # define swapper_pg_dir NULL
 static inline void paging_init(void) { }
-static inline void pgtable_cache_init(void) { }
 #endif
+static inline void pgtable_cache_init(void) { }
 
 /*
  * The pmd contains the kernel virtual address of the pte page.
diff --git a/arch/xtensa/mm/mmu.c b/arch/xtensa/mm/mmu.c
index a1077570e383..c43771c974be 100644
--- a/arch/xtensa/mm/mmu.c
+++ b/arch/xtensa/mm/mmu.c
@@ -50,23 +50,3 @@ void __init init_mmu(void)
 	 */
 	set_ptevaddr_register(PGTABLE_START);
 }
-
-struct kmem_cache *pgtable_cache __read_mostly;
-
-static void pgd_ctor(void *addr)
-{
-	pte_t *ptep = (pte_t *)addr;
-	int i;
-
-	for (i = 0; i < 1024; i++, ptep++)
-		pte_clear(NULL, 0, ptep);
-
-}
-
-void __init pgtable_cache_init(void)
-{
-	pgtable_cache = kmem_cache_create("pgd",
-			PAGE_SIZE, PAGE_SIZE,
-			SLAB_HWCACHE_ALIGN,
-			pgd_ctor);
-}
-- 
cgit 


From 49076ec2ccaf68610aa03d96bced9a6694b93ca1 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:51 -0800
Subject: mm: dynamically allocate page->ptl if it cannot be embedded to struct
 page

If split page table lock is in use, we embed the lock into struct page
of table's page.  We have to disable split lock, if spinlock_t is too
big be to be embedded, like when DEBUG_SPINLOCK or DEBUG_LOCK_ALLOC
enabled.

This patch add support for dynamic allocation of split page table lock
if we can't embed it to struct page.

page->ptl is unsigned long now and we use it as spinlock_t if
sizeof(spinlock_t) <= sizeof(long), otherwise it's pointer to spinlock_t.

The spinlock_t allocated in pgtable_page_ctor() for PTE table and in
pgtable_pmd_page_ctor() for PMD table.  All other helpers converted to
support dynamically allocated page->ptl.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reviewed-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Documentation/vm/split_page_table_lock | 94 ++++++++++++++++++++++++++++++++++
 arch/x86/xen/mmu.c                     |  2 +-
 include/linux/mm.h                     | 81 +++++++++++++++++++++--------
 include/linux/mm_types.h               |  5 +-
 mm/Kconfig                             |  2 -
 mm/memory.c                            | 19 +++++++
 6 files changed, 179 insertions(+), 24 deletions(-)
 create mode 100644 Documentation/vm/split_page_table_lock

diff --git a/Documentation/vm/split_page_table_lock b/Documentation/vm/split_page_table_lock
new file mode 100644
index 000000000000..7521d367f21d
--- /dev/null
+++ b/Documentation/vm/split_page_table_lock
@@ -0,0 +1,94 @@
+Split page table lock
+=====================
+
+Originally, mm->page_table_lock spinlock protected all page tables of the
+mm_struct. But this approach leads to poor page fault scalability of
+multi-threaded applications due high contention on the lock. To improve
+scalability, split page table lock was introduced.
+
+With split page table lock we have separate per-table lock to serialize
+access to the table. At the moment we use split lock for PTE and PMD
+tables. Access to higher level tables protected by mm->page_table_lock.
+
+There are helpers to lock/unlock a table and other accessor functions:
+ - pte_offset_map_lock()
+	maps pte and takes PTE table lock, returns pointer to the taken
+	lock;
+ - pte_unmap_unlock()
+	unlocks and unmaps PTE table;
+ - pte_alloc_map_lock()
+	allocates PTE table if needed and take the lock, returns pointer
+	to taken lock or NULL if allocation failed;
+ - pte_lockptr()
+	returns pointer to PTE table lock;
+ - pmd_lock()
+	takes PMD table lock, returns pointer to taken lock;
+ - pmd_lockptr()
+	returns pointer to PMD table lock;
+
+Split page table lock for PTE tables is enabled compile-time if
+CONFIG_SPLIT_PTLOCK_CPUS (usually 4) is less or equal to NR_CPUS.
+If split lock is disabled, all tables guaded by mm->page_table_lock.
+
+Split page table lock for PMD tables is enabled, if it's enabled for PTE
+tables and the architecture supports it (see below).
+
+Hugetlb and split page table lock
+---------------------------------
+
+Hugetlb can support several page sizes. We use split lock only for PMD
+level, but not for PUD.
+
+Hugetlb-specific helpers:
+ - huge_pte_lock()
+	takes pmd split lock for PMD_SIZE page, mm->page_table_lock
+	otherwise;
+ - huge_pte_lockptr()
+	returns pointer to table lock;
+
+Support of split page table lock by an architecture
+---------------------------------------------------
+
+There's no need in special enabling of PTE split page table lock:
+everything required is done by pgtable_page_ctor() and pgtable_page_dtor(),
+which must be called on PTE table allocation / freeing.
+
+Make sure the architecture doesn't use slab allocator for page table
+allocation: slab uses page->slab_cache and page->first_page for its pages.
+These fields share storage with page->ptl.
+
+PMD split lock only makes sense if you have more than two page table
+levels.
+
+PMD split lock enabling requires pgtable_pmd_page_ctor() call on PMD table
+allocation and pgtable_pmd_page_dtor() on freeing.
+
+Allocation usually happens in pmd_alloc_one(), freeing in pmd_free(), but
+make sure you cover all PMD table allocation / freeing paths: i.e X86_PAE
+preallocate few PMDs on pgd_alloc().
+
+With everything in place you can set CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK.
+
+NOTE: pgtable_page_ctor() and pgtable_pmd_page_ctor() can fail -- it must
+be handled properly.
+
+page->ptl
+---------
+
+page->ptl is used to access split page table lock, where 'page' is struct
+page of page containing the table. It shares storage with page->private
+(and few other fields in union).
+
+To avoid increasing size of struct page and have best performance, we use a
+trick:
+ - if spinlock_t fits into long, we use page->ptr as spinlock, so we
+   can avoid indirect access and save a cache line.
+ - if size of spinlock_t is bigger then size of long, we use page->ptl as
+   pointer to spinlock_t and allocate it dynamically. This allows to use
+   split lock with enabled DEBUG_SPINLOCK or DEBUG_LOCK_ALLOC, but costs
+   one more cache line for indirect access;
+
+The spinlock_t allocated in pgtable_page_ctor() for PTE table and in
+pgtable_pmd_page_ctor() for PMD table.
+
+Please, never access page->ptl directly -- use appropriate helper.
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 455c873ce009..49c962fe7e62 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -797,7 +797,7 @@ static spinlock_t *xen_pte_lock(struct page *page, struct mm_struct *mm)
 	spinlock_t *ptl = NULL;
 
 #if USE_SPLIT_PTE_PTLOCKS
-	ptl = __pte_lockptr(page);
+	ptl = ptlock_ptr(page);
 	spin_lock_nest_lock(ptl, &mm->page_table_lock);
 #endif
 
diff --git a/include/linux/mm.h b/include/linux/mm.h
index e855351c3361..d0339741b6ce 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1317,32 +1317,73 @@ static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long a
 #endif /* CONFIG_MMU && !__ARCH_HAS_4LEVEL_HACK */
 
 #if USE_SPLIT_PTE_PTLOCKS
-/*
- * We tuck a spinlock to guard each pagetable page into its struct page,
- * at page->private, with BUILD_BUG_ON to make sure that this will not
- * overflow into the next struct page (as it might with DEBUG_SPINLOCK).
- * When freeing, reset page->mapping so free_pages_check won't complain.
- */
-#define __pte_lockptr(page)	&((page)->ptl)
-#define pte_lock_init(_page)	do {					\
-	spin_lock_init(__pte_lockptr(_page));				\
-} while (0)
-#define pte_lock_deinit(page)	((page)->mapping = NULL)
-#define pte_lockptr(mm, pmd)	({(void)(mm); __pte_lockptr(pmd_page(*(pmd)));})
+bool __ptlock_alloc(struct page *page);
+void __ptlock_free(struct page *page);
+static inline bool ptlock_alloc(struct page *page)
+{
+	if (sizeof(spinlock_t) > sizeof(page->ptl))
+		return __ptlock_alloc(page);
+	return true;
+}
+static inline void ptlock_free(struct page *page)
+{
+	if (sizeof(spinlock_t) > sizeof(page->ptl))
+		__ptlock_free(page);
+}
+
+static inline spinlock_t *ptlock_ptr(struct page *page)
+{
+	if (sizeof(spinlock_t) > sizeof(page->ptl))
+		return (spinlock_t *) page->ptl;
+	else
+		return (spinlock_t *) &page->ptl;
+}
+
+static inline spinlock_t *pte_lockptr(struct mm_struct *mm, pmd_t *pmd)
+{
+	return ptlock_ptr(pmd_page(*pmd));
+}
+
+static inline bool ptlock_init(struct page *page)
+{
+	/*
+	 * prep_new_page() initialize page->private (and therefore page->ptl)
+	 * with 0. Make sure nobody took it in use in between.
+	 *
+	 * It can happen if arch try to use slab for page table allocation:
+	 * slab code uses page->slab_cache and page->first_page (for tail
+	 * pages), which share storage with page->ptl.
+	 */
+	VM_BUG_ON(page->ptl);
+	if (!ptlock_alloc(page))
+		return false;
+	spin_lock_init(ptlock_ptr(page));
+	return true;
+}
+
+/* Reset page->mapping so free_pages_check won't complain. */
+static inline void pte_lock_deinit(struct page *page)
+{
+	page->mapping = NULL;
+	ptlock_free(page);
+}
+
 #else	/* !USE_SPLIT_PTE_PTLOCKS */
 /*
  * We use mm->page_table_lock to guard all pagetable pages of the mm.
  */
-#define pte_lock_init(page)	do {} while (0)
-#define pte_lock_deinit(page)	do {} while (0)
-#define pte_lockptr(mm, pmd)	({(void)(pmd); &(mm)->page_table_lock;})
+static inline spinlock_t *pte_lockptr(struct mm_struct *mm, pmd_t *pmd)
+{
+	return &mm->page_table_lock;
+}
+static inline bool ptlock_init(struct page *page) { return true; }
+static inline void pte_lock_deinit(struct page *page) {}
 #endif /* USE_SPLIT_PTE_PTLOCKS */
 
 static inline bool pgtable_page_ctor(struct page *page)
 {
-	pte_lock_init(page);
 	inc_zone_page_state(page, NR_PAGETABLE);
-	return true;
+	return ptlock_init(page);
 }
 
 static inline void pgtable_page_dtor(struct page *page)
@@ -1383,16 +1424,15 @@ static inline void pgtable_page_dtor(struct page *page)
 
 static inline spinlock_t *pmd_lockptr(struct mm_struct *mm, pmd_t *pmd)
 {
-	return &virt_to_page(pmd)->ptl;
+	return ptlock_ptr(virt_to_page(pmd));
 }
 
 static inline bool pgtable_pmd_page_ctor(struct page *page)
 {
-	spin_lock_init(&page->ptl);
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 	page->pmd_huge_pte = NULL;
 #endif
-	return true;
+	return ptlock_init(page);
 }
 
 static inline void pgtable_pmd_page_dtor(struct page *page)
@@ -1400,6 +1440,7 @@ static inline void pgtable_pmd_page_dtor(struct page *page)
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
 	VM_BUG_ON(page->pmd_huge_pte);
 #endif
+	ptlock_free(page);
 }
 
 #define pmd_huge_pte(mm, pmd) (virt_to_page(pmd)->pmd_huge_pte)
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 934261099975..423da79877e6 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -147,7 +147,10 @@ struct page {
 						 * system if PG_buddy is set.
 						 */
 #if USE_SPLIT_PTE_PTLOCKS
-		spinlock_t ptl;
+		unsigned long ptl; /* It's spinlock_t if it fits to long,
+				    * otherwise it's pointer to dynamicaly
+				    * allocated spinlock_t.
+				    */
 #endif
 		struct kmem_cache *slab_cache;	/* SL[AU]B: Pointer to slab */
 		struct page *first_page;	/* Compound tail pages */
diff --git a/mm/Kconfig b/mm/Kconfig
index 7aa02def4666..de31af256207 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -218,8 +218,6 @@ config SPLIT_PTLOCK_CPUS
 	int
 	default "999999" if ARM && !CPU_CACHE_VIPT
 	default "999999" if PARISC && !PA20
-	default "999999" if DEBUG_SPINLOCK || DEBUG_LOCK_ALLOC
-	default "999999" if !64BIT && GENERIC_LOCKBREAK
 	default "4"
 
 config ARCH_ENABLE_SPLIT_PMD_PTLOCK
diff --git a/mm/memory.c b/mm/memory.c
index d05c6b10e926..24ffae2a530e 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4270,3 +4270,22 @@ void copy_user_huge_page(struct page *dst, struct page *src,
 	}
 }
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_HUGETLBFS */
+
+#if USE_SPLIT_PTE_PTLOCKS
+bool __ptlock_alloc(struct page *page)
+{
+	spinlock_t *ptl;
+
+	ptl = kmalloc(sizeof(spinlock_t), GFP_KERNEL);
+	if (!ptl)
+		return false;
+	page->ptl = (unsigned long)ptl;
+	return true;
+}
+
+void __ptlock_free(struct page *page)
+{
+	if (sizeof(spinlock_t) > sizeof(page->ptl))
+		kfree((spinlock_t *)page->ptl);
+}
+#endif
-- 
cgit 


From 539edb5846c740d78a8b6c2e43a99ca4323df68f Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 14 Nov 2013 14:31:52 -0800
Subject: mm: properly separate the bloated ptl from the regular case

Use kernel/bounds.c to convert build-time spinlock_t size check into a
preprocessor symbol and apply that to properly separate the page::ptl
situation.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/mm.h       | 24 +++++++++++++-----------
 include/linux/mm_types.h |  9 +++++----
 kernel/bounds.c          |  2 ++
 mm/memory.c              | 11 +++++------
 4 files changed, 25 insertions(+), 21 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index d0339741b6ce..1cedd000cf29 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1317,27 +1317,29 @@ static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long a
 #endif /* CONFIG_MMU && !__ARCH_HAS_4LEVEL_HACK */
 
 #if USE_SPLIT_PTE_PTLOCKS
-bool __ptlock_alloc(struct page *page);
-void __ptlock_free(struct page *page);
+#if BLOATED_SPINLOCKS
+extern bool ptlock_alloc(struct page *page);
+extern void ptlock_free(struct page *page);
+
+static inline spinlock_t *ptlock_ptr(struct page *page)
+{
+	return page->ptl;
+}
+#else /* BLOATED_SPINLOCKS */
 static inline bool ptlock_alloc(struct page *page)
 {
-	if (sizeof(spinlock_t) > sizeof(page->ptl))
-		return __ptlock_alloc(page);
 	return true;
 }
+
 static inline void ptlock_free(struct page *page)
 {
-	if (sizeof(spinlock_t) > sizeof(page->ptl))
-		__ptlock_free(page);
 }
 
 static inline spinlock_t *ptlock_ptr(struct page *page)
 {
-	if (sizeof(spinlock_t) > sizeof(page->ptl))
-		return (spinlock_t *) page->ptl;
-	else
-		return (spinlock_t *) &page->ptl;
+	return &page->ptl;
 }
+#endif /* BLOATED_SPINLOCKS */
 
 static inline spinlock_t *pte_lockptr(struct mm_struct *mm, pmd_t *pmd)
 {
@@ -1354,7 +1356,7 @@ static inline bool ptlock_init(struct page *page)
 	 * slab code uses page->slab_cache and page->first_page (for tail
 	 * pages), which share storage with page->ptl.
 	 */
-	VM_BUG_ON(page->ptl);
+	VM_BUG_ON(*(unsigned long *)&page->ptl);
 	if (!ptlock_alloc(page))
 		return false;
 	spin_lock_init(ptlock_ptr(page));
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 423da79877e6..10f5a7272b80 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -147,10 +147,11 @@ struct page {
 						 * system if PG_buddy is set.
 						 */
 #if USE_SPLIT_PTE_PTLOCKS
-		unsigned long ptl; /* It's spinlock_t if it fits to long,
-				    * otherwise it's pointer to dynamicaly
-				    * allocated spinlock_t.
-				    */
+#if BLOATED_SPINLOCKS
+		spinlock_t *ptl;
+#else
+		spinlock_t ptl;
+#endif
 #endif
 		struct kmem_cache *slab_cache;	/* SL[AU]B: Pointer to slab */
 		struct page *first_page;	/* Compound tail pages */
diff --git a/kernel/bounds.c b/kernel/bounds.c
index e8ca97b5c386..578782ef6ae1 100644
--- a/kernel/bounds.c
+++ b/kernel/bounds.c
@@ -11,6 +11,7 @@
 #include <linux/kbuild.h>
 #include <linux/page_cgroup.h>
 #include <linux/log2.h>
+#include <linux/spinlock.h>
 
 void foo(void)
 {
@@ -21,5 +22,6 @@ void foo(void)
 #ifdef CONFIG_SMP
 	DEFINE(NR_CPUS_BITS, ilog2(CONFIG_NR_CPUS));
 #endif
+	DEFINE(BLOATED_SPINLOCKS, sizeof(spinlock_t) > sizeof(int));
 	/* End of constants */
 }
diff --git a/mm/memory.c b/mm/memory.c
index 24ffae2a530e..5d9025f3b3e1 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4271,21 +4271,20 @@ void copy_user_huge_page(struct page *dst, struct page *src,
 }
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_HUGETLBFS */
 
-#if USE_SPLIT_PTE_PTLOCKS
-bool __ptlock_alloc(struct page *page)
+#if USE_SPLIT_PTE_PTLOCKS && BLOATED_SPINLOCKS
+bool ptlock_alloc(struct page *page)
 {
 	spinlock_t *ptl;
 
 	ptl = kmalloc(sizeof(spinlock_t), GFP_KERNEL);
 	if (!ptl)
 		return false;
-	page->ptl = (unsigned long)ptl;
+	page->ptl = ptl;
 	return true;
 }
 
-void __ptlock_free(struct page *page)
+void ptlock_free(struct page *page)
 {
-	if (sizeof(spinlock_t) > sizeof(page->ptl))
-		kfree((spinlock_t *)page->ptl);
+	kfree(page->ptl);
 }
 #endif
-- 
cgit 


From ea1e7ed33708c7a760419ff9ded0a6cb90586a50 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 14 Nov 2013 14:31:53 -0800
Subject: mm: create a separate slab for page->ptl allocation

If DEBUG_SPINLOCK and DEBUG_LOCK_ALLOC are enabled spinlock_t on x86_64
is 72 bytes.  For page->ptl they will be allocated from kmalloc-96 slab,
so we loose 24 on each.  An average system can easily allocate few tens
thousands of page->ptl and overhead is significant.

Let's create a separate slab for page->ptl allocation to solve this.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/mm.h | 9 +++++++++
 init/main.c        | 2 +-
 mm/memory.c        | 7 +++++++
 3 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 1cedd000cf29..0548eb201e05 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1318,6 +1318,7 @@ static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long a
 
 #if USE_SPLIT_PTE_PTLOCKS
 #if BLOATED_SPINLOCKS
+void __init ptlock_cache_init(void);
 extern bool ptlock_alloc(struct page *page);
 extern void ptlock_free(struct page *page);
 
@@ -1326,6 +1327,7 @@ static inline spinlock_t *ptlock_ptr(struct page *page)
 	return page->ptl;
 }
 #else /* BLOATED_SPINLOCKS */
+static inline void ptlock_cache_init(void) {}
 static inline bool ptlock_alloc(struct page *page)
 {
 	return true;
@@ -1378,10 +1380,17 @@ static inline spinlock_t *pte_lockptr(struct mm_struct *mm, pmd_t *pmd)
 {
 	return &mm->page_table_lock;
 }
+static inline void ptlock_cache_init(void) {}
 static inline bool ptlock_init(struct page *page) { return true; }
 static inline void pte_lock_deinit(struct page *page) {}
 #endif /* USE_SPLIT_PTE_PTLOCKS */
 
+static inline void pgtable_init(void)
+{
+	ptlock_cache_init();
+	pgtable_cache_init();
+}
+
 static inline bool pgtable_page_ctor(struct page *page)
 {
 	inc_zone_page_state(page, NR_PAGETABLE);
diff --git a/init/main.c b/init/main.c
index 6ad1a533a8c7..5f191133376f 100644
--- a/init/main.c
+++ b/init/main.c
@@ -473,7 +473,7 @@ static void __init mm_init(void)
 	mem_init();
 	kmem_cache_init();
 	percpu_init_late();
-	pgtable_cache_init();
+	pgtable_init();
 	vmalloc_init();
 }
 
diff --git a/mm/memory.c b/mm/memory.c
index 5d9025f3b3e1..0409e8f43fa0 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4272,6 +4272,13 @@ void copy_user_huge_page(struct page *dst, struct page *src,
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_HUGETLBFS */
 
 #if USE_SPLIT_PTE_PTLOCKS && BLOATED_SPINLOCKS
+static struct kmem_cache *page_ptl_cachep;
+void __init ptlock_cache_init(void)
+{
+	page_ptl_cachep = kmem_cache_create("page->ptl", sizeof(spinlock_t), 0,
+			SLAB_PANIC, NULL);
+}
+
 bool ptlock_alloc(struct page *page)
 {
 	spinlock_t *ptl;
-- 
cgit 


From 57f4257eae33e036125973858934730250d464e3 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 14 Nov 2013 14:31:54 -0800
Subject: lockref: use BLOATED_SPINLOCKS to avoid explicit config dependencies

Avoid the fragile Kconfig construct guestimating spinlock_t sizes; use a
friendly compile-time test to determine this.

[kirill.shutemov@linux.intel.com: drop CONFIG_CMPXCHG_LOCKREF]
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/lockref.h | 7 ++++++-
 lib/Kconfig             | 7 -------
 lib/lockref.c           | 2 +-
 3 files changed, 7 insertions(+), 9 deletions(-)

diff --git a/include/linux/lockref.h b/include/linux/lockref.h
index 13dfd36a3294..c8929c3832db 100644
--- a/include/linux/lockref.h
+++ b/include/linux/lockref.h
@@ -15,10 +15,15 @@
  */
 
 #include <linux/spinlock.h>
+#include <generated/bounds.h>
+
+#define USE_CMPXCHG_LOCKREF \
+	(IS_ENABLED(CONFIG_ARCH_USE_CMPXCHG_LOCKREF) && \
+	 IS_ENABLED(CONFIG_SMP) && !BLOATED_SPINLOCKS)
 
 struct lockref {
 	union {
-#ifdef CONFIG_CMPXCHG_LOCKREF
+#if USE_CMPXCHG_LOCKREF
 		aligned_u64 lock_count;
 #endif
 		struct {
diff --git a/lib/Kconfig b/lib/Kconfig
index 75485e163ca3..06dc74200a51 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -51,13 +51,6 @@ config PERCPU_RWSEM
 config ARCH_USE_CMPXCHG_LOCKREF
 	bool
 
-config CMPXCHG_LOCKREF
-	def_bool y if ARCH_USE_CMPXCHG_LOCKREF
-	depends on SMP
-	depends on !GENERIC_LOCKBREAK
-	depends on !DEBUG_SPINLOCK
-	depends on !DEBUG_LOCK_ALLOC
-
 config CRC_CCITT
 	tristate "CRC-CCITT functions"
 	help
diff --git a/lib/lockref.c b/lib/lockref.c
index af6e95d0bed6..d2b123f8456b 100644
--- a/lib/lockref.c
+++ b/lib/lockref.c
@@ -1,7 +1,7 @@
 #include <linux/export.h>
 #include <linux/lockref.h>
 
-#ifdef CONFIG_CMPXCHG_LOCKREF
+#if USE_CMPXCHG_LOCKREF
 
 /*
  * Allow weakly-ordered memory architectures to provide barrier-less
-- 
cgit 


From 839cc2a94cc3665bafe32203c2f095f4dd470a80 Mon Sep 17 00:00:00 2001
From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Date: Thu, 14 Nov 2013 14:31:56 -0800
Subject: seq_file: introduce seq_setwidth() and seq_pad()

There are several users who want to know bytes written by seq_*() for
alignment purpose.  Currently they are using %n format for knowing it
because seq_*() returns 0 on success.

This patch introduces seq_setwidth() and seq_pad() for allowing them to
align without using %n format.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Joe Perches <joe@perches.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/seq_file.c            | 15 +++++++++++++++
 include/linux/seq_file.h | 15 +++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/fs/seq_file.c b/fs/seq_file.c
index a290157265ef..1cd2388ca5bd 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -766,6 +766,21 @@ int seq_write(struct seq_file *seq, const void *data, size_t len)
 }
 EXPORT_SYMBOL(seq_write);
 
+/**
+ * seq_pad - write padding spaces to buffer
+ * @m: seq_file identifying the buffer to which data should be written
+ * @c: the byte to append after padding if non-zero
+ */
+void seq_pad(struct seq_file *m, char c)
+{
+	int size = m->pad_until - m->count;
+	if (size > 0)
+		seq_printf(m, "%*s", size, "");
+	if (c)
+		seq_putc(m, c);
+}
+EXPORT_SYMBOL(seq_pad);
+
 struct list_head *seq_list_start(struct list_head *head, loff_t pos)
 {
 	struct list_head *lh;
diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index 4e32edc8f506..52e0097f61f0 100644
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -20,6 +20,7 @@ struct seq_file {
 	size_t size;
 	size_t from;
 	size_t count;
+	size_t pad_until;
 	loff_t index;
 	loff_t read_pos;
 	u64 version;
@@ -79,6 +80,20 @@ static inline void seq_commit(struct seq_file *m, int num)
 	}
 }
 
+/**
+ * seq_setwidth - set padding width
+ * @m: the seq_file handle
+ * @size: the max number of bytes to pad.
+ *
+ * Call seq_setwidth() for setting max width, then call seq_printf() etc. and
+ * finally call seq_pad() to pad the remaining bytes.
+ */
+static inline void seq_setwidth(struct seq_file *m, size_t size)
+{
+	m->pad_until = m->count + size;
+}
+void seq_pad(struct seq_file *m, char c);
+
 char *mangle_path(char *s, const char *p, const char *esc);
 int seq_open(struct file *, const struct seq_operations *);
 ssize_t seq_read(struct file *, char __user *, size_t, loff_t *);
-- 
cgit 


From 652586df95e5d76b37d07a11839126dcfede1621 Mon Sep 17 00:00:00 2001
From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Date: Thu, 14 Nov 2013 14:31:57 -0800
Subject: seq_file: remove "%n" usage from seq_file users

All seq_printf() users are using "%n" for calculating padding size,
convert them to use seq_setwidth() / seq_pad() pair.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Joe Perches <joe@perches.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/proc/consoles.c   | 10 ++++------
 fs/proc/nommu.c      | 12 +++++-------
 fs/proc/task_mmu.c   | 20 ++++++--------------
 fs/proc/task_nommu.c | 19 ++++++-------------
 net/ipv4/fib_trie.c  | 13 +++++++------
 net/ipv4/ping.c      | 15 +++++++--------
 net/ipv4/tcp_ipv4.c  | 33 +++++++++++++++------------------
 net/ipv4/udp.c       | 15 +++++++--------
 net/phonet/socket.c  | 24 +++++++++++-------------
 net/sctp/objcnt.c    |  9 +++++----
 10 files changed, 73 insertions(+), 97 deletions(-)

diff --git a/fs/proc/consoles.c b/fs/proc/consoles.c
index b701eaa482bf..51942d5abcec 100644
--- a/fs/proc/consoles.c
+++ b/fs/proc/consoles.c
@@ -29,7 +29,6 @@ static int show_console_dev(struct seq_file *m, void *v)
 	char flags[ARRAY_SIZE(con_flags) + 1];
 	struct console *con = v;
 	unsigned int a;
-	int len;
 	dev_t dev = 0;
 
 	if (con->device) {
@@ -47,11 +46,10 @@ static int show_console_dev(struct seq_file *m, void *v)
 			con_flags[a].name : ' ';
 	flags[a] = 0;
 
-	seq_printf(m, "%s%d%n", con->name, con->index, &len);
-	len = 21 - len;
-	if (len < 1)
-		len = 1;
-	seq_printf(m, "%*c%c%c%c (%s)", len, ' ', con->read ? 'R' : '-',
+	seq_setwidth(m, 21 - 1);
+	seq_printf(m, "%s%d", con->name, con->index);
+	seq_pad(m, ' ');
+	seq_printf(m, "%c%c%c (%s)", con->read ? 'R' : '-',
 			con->write ? 'W' : '-', con->unblank ? 'U' : '-',
 			flags);
 	if (dev)
diff --git a/fs/proc/nommu.c b/fs/proc/nommu.c
index ccfd99bd1c5a..5f9bc8a746c9 100644
--- a/fs/proc/nommu.c
+++ b/fs/proc/nommu.c
@@ -39,7 +39,7 @@ static int nommu_region_show(struct seq_file *m, struct vm_region *region)
 	unsigned long ino = 0;
 	struct file *file;
 	dev_t dev = 0;
-	int flags, len;
+	int flags;
 
 	flags = region->vm_flags;
 	file = region->vm_file;
@@ -50,8 +50,9 @@ static int nommu_region_show(struct seq_file *m, struct vm_region *region)
 		ino = inode->i_ino;
 	}
 
+	seq_setwidth(m, 25 + sizeof(void *) * 6 - 1);
 	seq_printf(m,
-		   "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n",
+		   "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu ",
 		   region->vm_start,
 		   region->vm_end,
 		   flags & VM_READ ? 'r' : '-',
@@ -59,13 +60,10 @@ static int nommu_region_show(struct seq_file *m, struct vm_region *region)
 		   flags & VM_EXEC ? 'x' : '-',
 		   flags & VM_MAYSHARE ? flags & VM_SHARED ? 'S' : 's' : 'p',
 		   ((loff_t)region->vm_pgoff) << PAGE_SHIFT,
-		   MAJOR(dev), MINOR(dev), ino, &len);
+		   MAJOR(dev), MINOR(dev), ino);
 
 	if (file) {
-		len = 25 + sizeof(void *) * 6 - len;
-		if (len < 1)
-			len = 1;
-		seq_printf(m, "%*c", len, ' ');
+		seq_pad(m, ' ');
 		seq_path(m, &file->f_path, "");
 	}
 
diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 42b5cf5d0326..fb52b548080d 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -84,14 +84,6 @@ unsigned long task_statm(struct mm_struct *mm,
 	return mm->total_vm;
 }
 
-static void pad_len_spaces(struct seq_file *m, int len)
-{
-	len = 25 + sizeof(void*) * 6 - len;
-	if (len < 1)
-		len = 1;
-	seq_printf(m, "%*c", len, ' ');
-}
-
 #ifdef CONFIG_NUMA
 /*
  * These functions are for numa_maps but called in generic **maps seq_file
@@ -269,7 +261,6 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
 	unsigned long long pgoff = 0;
 	unsigned long start, end;
 	dev_t dev = 0;
-	int len;
 	const char *name = NULL;
 
 	if (file) {
@@ -287,7 +278,8 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
 	if (stack_guard_page_end(vma, end))
 		end -= PAGE_SIZE;
 
-	seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n",
+	seq_setwidth(m, 25 + sizeof(void *) * 6 - 1);
+	seq_printf(m, "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu ",
 			start,
 			end,
 			flags & VM_READ ? 'r' : '-',
@@ -295,14 +287,14 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
 			flags & VM_EXEC ? 'x' : '-',
 			flags & VM_MAYSHARE ? 's' : 'p',
 			pgoff,
-			MAJOR(dev), MINOR(dev), ino, &len);
+			MAJOR(dev), MINOR(dev), ino);
 
 	/*
 	 * Print the dentry name for named mappings, and a
 	 * special [heap] marker for the heap:
 	 */
 	if (file) {
-		pad_len_spaces(m, len);
+		seq_pad(m, ' ');
 		seq_path(m, &file->f_path, "\n");
 		goto done;
 	}
@@ -334,7 +326,7 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
 				name = "[stack]";
 			} else {
 				/* Thread stack in /proc/PID/maps */
-				pad_len_spaces(m, len);
+				seq_pad(m, ' ');
 				seq_printf(m, "[stack:%d]", tid);
 			}
 		}
@@ -342,7 +334,7 @@ show_map_vma(struct seq_file *m, struct vm_area_struct *vma, int is_pid)
 
 done:
 	if (name) {
-		pad_len_spaces(m, len);
+		seq_pad(m, ' ');
 		seq_puts(m, name);
 	}
 	seq_putc(m, '\n');
diff --git a/fs/proc/task_nommu.c b/fs/proc/task_nommu.c
index 56123a6f462e..678455d2d683 100644
--- a/fs/proc/task_nommu.c
+++ b/fs/proc/task_nommu.c
@@ -123,14 +123,6 @@ unsigned long task_statm(struct mm_struct *mm,
 	return size;
 }
 
-static void pad_len_spaces(struct seq_file *m, int len)
-{
-	len = 25 + sizeof(void*) * 6 - len;
-	if (len < 1)
-		len = 1;
-	seq_printf(m, "%*c", len, ' ');
-}
-
 /*
  * display a single VMA to a sequenced file
  */
@@ -142,7 +134,7 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma,
 	unsigned long ino = 0;
 	struct file *file;
 	dev_t dev = 0;
-	int flags, len;
+	int flags;
 	unsigned long long pgoff = 0;
 
 	flags = vma->vm_flags;
@@ -155,8 +147,9 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma,
 		pgoff = (loff_t)vma->vm_pgoff << PAGE_SHIFT;
 	}
 
+	seq_setwidth(m, 25 + sizeof(void *) * 6 - 1);
 	seq_printf(m,
-		   "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu %n",
+		   "%08lx-%08lx %c%c%c%c %08llx %02x:%02x %lu ",
 		   vma->vm_start,
 		   vma->vm_end,
 		   flags & VM_READ ? 'r' : '-',
@@ -164,16 +157,16 @@ static int nommu_vma_show(struct seq_file *m, struct vm_area_struct *vma,
 		   flags & VM_EXEC ? 'x' : '-',
 		   flags & VM_MAYSHARE ? flags & VM_SHARED ? 'S' : 's' : 'p',
 		   pgoff,
-		   MAJOR(dev), MINOR(dev), ino, &len);
+		   MAJOR(dev), MINOR(dev), ino);
 
 	if (file) {
-		pad_len_spaces(m, len);
+		seq_pad(m, ' ');
 		seq_path(m, &file->f_path, "");
 	} else if (mm) {
 		pid_t tid = vm_is_stack(priv->task, vma, is_pid);
 
 		if (tid != 0) {
-			pad_len_spaces(m, len);
+			seq_pad(m, ' ');
 			/*
 			 * Thread stack in /proc/PID/task/TID/maps or
 			 * the main process stack.
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index ec9a9ef4ce50..5afeb5aa4c7c 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -2523,16 +2523,17 @@ static int fib_route_seq_show(struct seq_file *seq, void *v)
 		list_for_each_entry_rcu(fa, &li->falh, fa_list) {
 			const struct fib_info *fi = fa->fa_info;
 			unsigned int flags = fib_flag_trans(fa->fa_type, mask, fi);
-			int len;
 
 			if (fa->fa_type == RTN_BROADCAST
 			    || fa->fa_type == RTN_MULTICAST)
 				continue;
 
+			seq_setwidth(seq, 127);
+
 			if (fi)
 				seq_printf(seq,
 					 "%s\t%08X\t%08X\t%04X\t%d\t%u\t"
-					 "%d\t%08X\t%d\t%u\t%u%n",
+					 "%d\t%08X\t%d\t%u\t%u",
 					 fi->fib_dev ? fi->fib_dev->name : "*",
 					 prefix,
 					 fi->fib_nh->nh_gw, flags, 0, 0,
@@ -2541,15 +2542,15 @@ static int fib_route_seq_show(struct seq_file *seq, void *v)
 					 (fi->fib_advmss ?
 					  fi->fib_advmss + 40 : 0),
 					 fi->fib_window,
-					 fi->fib_rtt >> 3, &len);
+					 fi->fib_rtt >> 3);
 			else
 				seq_printf(seq,
 					 "*\t%08X\t%08X\t%04X\t%d\t%u\t"
-					 "%d\t%08X\t%d\t%u\t%u%n",
+					 "%d\t%08X\t%d\t%u\t%u",
 					 prefix, 0, flags, 0, 0, 0,
-					 mask, 0, 0, 0, &len);
+					 mask, 0, 0, 0);
 
-			seq_printf(seq, "%*s\n", 127 - len, "");
+			seq_pad(seq, '\n');
 		}
 	}
 
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 9afbdb19f4a2..cbc85f660d54 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -1076,7 +1076,7 @@ void ping_seq_stop(struct seq_file *seq, void *v)
 EXPORT_SYMBOL_GPL(ping_seq_stop);
 
 static void ping_v4_format_sock(struct sock *sp, struct seq_file *f,
-		int bucket, int *len)
+		int bucket)
 {
 	struct inet_sock *inet = inet_sk(sp);
 	__be32 dest = inet->inet_daddr;
@@ -1085,7 +1085,7 @@ static void ping_v4_format_sock(struct sock *sp, struct seq_file *f,
 	__u16 srcp = ntohs(inet->inet_sport);
 
 	seq_printf(f, "%5d: %08X:%04X %08X:%04X"
-		" %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %d%n",
+		" %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %d",
 		bucket, src, srcp, dest, destp, sp->sk_state,
 		sk_wmem_alloc_get(sp),
 		sk_rmem_alloc_get(sp),
@@ -1093,23 +1093,22 @@ static void ping_v4_format_sock(struct sock *sp, struct seq_file *f,
 		from_kuid_munged(seq_user_ns(f), sock_i_uid(sp)),
 		0, sock_i_ino(sp),
 		atomic_read(&sp->sk_refcnt), sp,
-		atomic_read(&sp->sk_drops), len);
+		atomic_read(&sp->sk_drops));
 }
 
 static int ping_v4_seq_show(struct seq_file *seq, void *v)
 {
+	seq_setwidth(seq, 127);
 	if (v == SEQ_START_TOKEN)
-		seq_printf(seq, "%-127s\n",
-			   "  sl  local_address rem_address   st tx_queue "
+		seq_puts(seq, "  sl  local_address rem_address   st tx_queue "
 			   "rx_queue tr tm->when retrnsmt   uid  timeout "
 			   "inode ref pointer drops");
 	else {
 		struct ping_iter_state *state = seq->private;
-		int len;
 
-		ping_v4_format_sock(v, seq, state->bucket, &len);
-		seq_printf(seq, "%*s\n", 127 - len, "");
+		ping_v4_format_sock(v, seq, state->bucket);
 	}
+	seq_pad(seq, '\n');
 	return 0;
 }
 
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 14bba8a1c5a7..59a6f8b90cd9 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -2541,13 +2541,13 @@ void tcp_proc_unregister(struct net *net, struct tcp_seq_afinfo *afinfo)
 EXPORT_SYMBOL(tcp_proc_unregister);
 
 static void get_openreq4(const struct sock *sk, const struct request_sock *req,
-			 struct seq_file *f, int i, kuid_t uid, int *len)
+			 struct seq_file *f, int i, kuid_t uid)
 {
 	const struct inet_request_sock *ireq = inet_rsk(req);
 	long delta = req->expires - jiffies;
 
 	seq_printf(f, "%4d: %08X:%04X %08X:%04X"
-		" %02X %08X:%08X %02X:%08lX %08X %5u %8d %u %d %pK%n",
+		" %02X %08X:%08X %02X:%08lX %08X %5u %8d %u %d %pK",
 		i,
 		ireq->ir_loc_addr,
 		ntohs(inet_sk(sk)->inet_sport),
@@ -2562,11 +2562,10 @@ static void get_openreq4(const struct sock *sk, const struct request_sock *req,
 		0,  /* non standard timer */
 		0, /* open_requests have no inode */
 		atomic_read(&sk->sk_refcnt),
-		req,
-		len);
+		req);
 }
 
-static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i, int *len)
+static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i)
 {
 	int timer_active;
 	unsigned long timer_expires;
@@ -2605,7 +2604,7 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i, int *len)
 		rx_queue = max_t(int, tp->rcv_nxt - tp->copied_seq, 0);
 
 	seq_printf(f, "%4d: %08X:%04X %08X:%04X %02X %08X:%08X %02X:%08lX "
-			"%08X %5u %8d %lu %d %pK %lu %lu %u %u %d%n",
+			"%08X %5u %8d %lu %d %pK %lu %lu %u %u %d",
 		i, src, srcp, dest, destp, sk->sk_state,
 		tp->write_seq - tp->snd_una,
 		rx_queue,
@@ -2622,12 +2621,11 @@ static void get_tcp4_sock(struct sock *sk, struct seq_file *f, int i, int *len)
 		tp->snd_cwnd,
 		sk->sk_state == TCP_LISTEN ?
 		    (fastopenq ? fastopenq->max_qlen : 0) :
-		    (tcp_in_initial_slowstart(tp) ? -1 : tp->snd_ssthresh),
-		len);
+		    (tcp_in_initial_slowstart(tp) ? -1 : tp->snd_ssthresh));
 }
 
 static void get_timewait4_sock(const struct inet_timewait_sock *tw,
-			       struct seq_file *f, int i, int *len)
+			       struct seq_file *f, int i)
 {
 	__be32 dest, src;
 	__u16 destp, srcp;
@@ -2639,10 +2637,10 @@ static void get_timewait4_sock(const struct inet_timewait_sock *tw,
 	srcp  = ntohs(tw->tw_sport);
 
 	seq_printf(f, "%4d: %08X:%04X %08X:%04X"
-		" %02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %pK%n",
+		" %02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %pK",
 		i, src, srcp, dest, destp, tw->tw_substate, 0, 0,
 		3, jiffies_delta_to_clock_t(delta), 0, 0, 0, 0,
-		atomic_read(&tw->tw_refcnt), tw, len);
+		atomic_read(&tw->tw_refcnt), tw);
 }
 
 #define TMPSZ 150
@@ -2651,11 +2649,10 @@ static int tcp4_seq_show(struct seq_file *seq, void *v)
 {
 	struct tcp_iter_state *st;
 	struct sock *sk = v;
-	int len;
 
+	seq_setwidth(seq, TMPSZ - 1);
 	if (v == SEQ_START_TOKEN) {
-		seq_printf(seq, "%-*s\n", TMPSZ - 1,
-			   "  sl  local_address rem_address   st tx_queue "
+		seq_puts(seq, "  sl  local_address rem_address   st tx_queue "
 			   "rx_queue tr tm->when retrnsmt   uid  timeout "
 			   "inode");
 		goto out;
@@ -2666,16 +2663,16 @@ static int tcp4_seq_show(struct seq_file *seq, void *v)
 	case TCP_SEQ_STATE_LISTENING:
 	case TCP_SEQ_STATE_ESTABLISHED:
 		if (sk->sk_state == TCP_TIME_WAIT)
-			get_timewait4_sock(v, seq, st->num, &len);
+			get_timewait4_sock(v, seq, st->num);
 		else
-			get_tcp4_sock(v, seq, st->num, &len);
+			get_tcp4_sock(v, seq, st->num);
 		break;
 	case TCP_SEQ_STATE_OPENREQ:
-		get_openreq4(st->syn_wait_sk, v, seq, st->num, st->uid, &len);
+		get_openreq4(st->syn_wait_sk, v, seq, st->num, st->uid);
 		break;
 	}
-	seq_printf(seq, "%*s\n", TMPSZ - 1 - len, "");
 out:
+	seq_pad(seq, '\n');
 	return 0;
 }
 
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 89909dd730dd..de86e5bc4462 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -2331,7 +2331,7 @@ EXPORT_SYMBOL(udp_proc_unregister);
 
 /* ------------------------------------------------------------------------ */
 static void udp4_format_sock(struct sock *sp, struct seq_file *f,
-		int bucket, int *len)
+		int bucket)
 {
 	struct inet_sock *inet = inet_sk(sp);
 	__be32 dest = inet->inet_daddr;
@@ -2340,7 +2340,7 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f,
 	__u16 srcp	  = ntohs(inet->inet_sport);
 
 	seq_printf(f, "%5d: %08X:%04X %08X:%04X"
-		" %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %d%n",
+		" %02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %d",
 		bucket, src, srcp, dest, destp, sp->sk_state,
 		sk_wmem_alloc_get(sp),
 		sk_rmem_alloc_get(sp),
@@ -2348,23 +2348,22 @@ static void udp4_format_sock(struct sock *sp, struct seq_file *f,
 		from_kuid_munged(seq_user_ns(f), sock_i_uid(sp)),
 		0, sock_i_ino(sp),
 		atomic_read(&sp->sk_refcnt), sp,
-		atomic_read(&sp->sk_drops), len);
+		atomic_read(&sp->sk_drops));
 }
 
 int udp4_seq_show(struct seq_file *seq, void *v)
 {
+	seq_setwidth(seq, 127);
 	if (v == SEQ_START_TOKEN)
-		seq_printf(seq, "%-127s\n",
-			   "  sl  local_address rem_address   st tx_queue "
+		seq_puts(seq, "  sl  local_address rem_address   st tx_queue "
 			   "rx_queue tr tm->when retrnsmt   uid  timeout "
 			   "inode ref pointer drops");
 	else {
 		struct udp_iter_state *state = seq->private;
-		int len;
 
-		udp4_format_sock(v, seq, state->bucket, &len);
-		seq_printf(seq, "%*s\n", 127 - len, "");
+		udp4_format_sock(v, seq, state->bucket);
 	}
+	seq_pad(seq, '\n');
 	return 0;
 }
 
diff --git a/net/phonet/socket.c b/net/phonet/socket.c
index 77e38f733496..008214a3d5eb 100644
--- a/net/phonet/socket.c
+++ b/net/phonet/socket.c
@@ -595,26 +595,25 @@ static void pn_sock_seq_stop(struct seq_file *seq, void *v)
 
 static int pn_sock_seq_show(struct seq_file *seq, void *v)
 {
-	int len;
-
+	seq_setwidth(seq, 127);
 	if (v == SEQ_START_TOKEN)
-		seq_printf(seq, "%s%n", "pt  loc  rem rs st tx_queue rx_queue "
-			"  uid inode ref pointer drops", &len);
+		seq_puts(seq, "pt  loc  rem rs st tx_queue rx_queue "
+			"  uid inode ref pointer drops");
 	else {
 		struct sock *sk = v;
 		struct pn_sock *pn = pn_sk(sk);
 
 		seq_printf(seq, "%2d %04X:%04X:%02X %02X %08X:%08X %5d %lu "
-			"%d %pK %d%n",
+			"%d %pK %d",
 			sk->sk_protocol, pn->sobject, pn->dobject,
 			pn->resource, sk->sk_state,
 			sk_wmem_alloc_get(sk), sk_rmem_alloc_get(sk),
 			from_kuid_munged(seq_user_ns(seq), sock_i_uid(sk)),
 			sock_i_ino(sk),
 			atomic_read(&sk->sk_refcnt), sk,
-			atomic_read(&sk->sk_drops), &len);
+			atomic_read(&sk->sk_drops));
 	}
-	seq_printf(seq, "%*s\n", 127 - len, "");
+	seq_pad(seq, '\n');
 	return 0;
 }
 
@@ -785,20 +784,19 @@ static void pn_res_seq_stop(struct seq_file *seq, void *v)
 
 static int pn_res_seq_show(struct seq_file *seq, void *v)
 {
-	int len;
-
+	seq_setwidth(seq, 63);
 	if (v == SEQ_START_TOKEN)
-		seq_printf(seq, "%s%n", "rs   uid inode", &len);
+		seq_puts(seq, "rs   uid inode");
 	else {
 		struct sock **psk = v;
 		struct sock *sk = *psk;
 
-		seq_printf(seq, "%02X %5u %lu%n",
+		seq_printf(seq, "%02X %5u %lu",
 			   (int) (psk - pnres.sk),
 			   from_kuid_munged(seq_user_ns(seq), sock_i_uid(sk)),
-			   sock_i_ino(sk), &len);
+			   sock_i_ino(sk));
 	}
-	seq_printf(seq, "%*s\n", 63 - len, "");
+	seq_pad(seq, '\n');
 	return 0;
 }
 
diff --git a/net/sctp/objcnt.c b/net/sctp/objcnt.c
index 5ea573b37648..647396baa56f 100644
--- a/net/sctp/objcnt.c
+++ b/net/sctp/objcnt.c
@@ -79,12 +79,13 @@ static sctp_dbg_objcnt_entry_t sctp_dbg_objcnt[] = {
  */
 static int sctp_objcnt_seq_show(struct seq_file *seq, void *v)
 {
-	int i, len;
+	int i;
 
 	i = (int)*(loff_t *)v;
-	seq_printf(seq, "%s: %d%n", sctp_dbg_objcnt[i].label,
-				atomic_read(sctp_dbg_objcnt[i].counter), &len);
-	seq_printf(seq, "%*s\n", 127 - len, "");
+	seq_setwidth(seq, 127);
+	seq_printf(seq, "%s: %d", sctp_dbg_objcnt[i].label,
+				atomic_read(sctp_dbg_objcnt[i].counter));
+	seq_pad(seq, '\n');
 	return 0;
 }
 
-- 
cgit 


From 9196436ab2f713b823a2ba2024cb69f40b2f54a5 Mon Sep 17 00:00:00 2001
From: Kees Cook <keescook@chromium.org>
Date: Thu, 14 Nov 2013 14:31:58 -0800
Subject: vsprintf: ignore %n again

This ignores %n in printf again, as was originally documented.
Implementing %n poses a greater security risk than utility, so it should
stay ignored.  To help anyone attempting to use %n, a warning will be
emitted if it is encountered.

Based on an earlier patch by Joe Perches.

Because %n was designed to write to pointers on the stack, it has been
frequently used as an attack vector when bugs are found that leak
user-controlled strings into functions that ultimately process format
strings.  While this class of bug can still be turned into an
information leak, removing %n eliminates the common method of elevating
such a bug into an arbitrary kernel memory writing primitive,
significantly reducing the danger of this class of bug.

For seq_file users that need to know the length of a written string for
padding, please see seq_setwidth() and seq_pad() instead.

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: Joe Perches <joe@perches.com>
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 lib/vsprintf.c | 20 +++++++++-----------
 1 file changed, 9 insertions(+), 11 deletions(-)

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 48586ac3a62e..10909c571494 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -1712,18 +1712,16 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
 			break;
 
 		case FORMAT_TYPE_NRCHARS: {
-			u8 qualifier = spec.qualifier;
+			/*
+			 * Since %n poses a greater security risk than
+			 * utility, ignore %n and skip its argument.
+			 */
+			void *skip_arg;
 
-			if (qualifier == 'l') {
-				long *ip = va_arg(args, long *);
-				*ip = (str - buf);
-			} else if (_tolower(qualifier) == 'z') {
-				size_t *ip = va_arg(args, size_t *);
-				*ip = (str - buf);
-			} else {
-				int *ip = va_arg(args, int *);
-				*ip = (str - buf);
-			}
+			WARN_ONCE(1, "Please remove ignored %%n in '%s'\n",
+					old_fmt);
+
+			skip_arg = va_arg(args, void *);
 			break;
 		}
 
-- 
cgit 


From d5ceede8dc86278d16dcad8f916ef323b5672bd8 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 14 Nov 2013 14:31:59 -0800
Subject: drivers/rtc/rtc-hid-sensor-time.c: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.  This is a cosmetic change to
make the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-hid-sensor-time.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/rtc/rtc-hid-sensor-time.c b/drivers/rtc/rtc-hid-sensor-time.c
index 45560ffb038d..1ba369043b8d 100644
--- a/drivers/rtc/rtc-hid-sensor-time.c
+++ b/drivers/rtc/rtc-hid-sensor-time.c
@@ -236,7 +236,7 @@ static const struct rtc_class_ops hid_time_rtc_ops = {
 static int hid_time_probe(struct platform_device *pdev)
 {
 	int ret = 0;
-	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
+	struct hid_sensor_hub_device *hsdev = dev_get_platdata(&pdev->dev);
 	struct hid_time_state *time_state = devm_kzalloc(&pdev->dev,
 		sizeof(struct hid_time_state), GFP_KERNEL);
 
@@ -303,7 +303,7 @@ err_open:
 
 static int hid_time_remove(struct platform_device *pdev)
 {
-	struct hid_sensor_hub_device *hsdev = pdev->dev.platform_data;
+	struct hid_sensor_hub_device *hsdev = dev_get_platdata(&pdev->dev);
 
 	sensor_hub_device_close(hsdev);
 	sensor_hub_remove_callback(hsdev, HID_USAGE_SENSOR_TIME);
-- 
cgit 


From 406bf31893163cbe5b0b03a281685c7dc95c9380 Mon Sep 17 00:00:00 2001
From: Alexander Holler <holler@ahsoftware.de>
Date: Thu, 14 Nov 2013 14:32:00 -0800
Subject: drivers/rtc/rtc-hid-sensor-time.c: enable HID input processing early

Enable the processing of HID input records before the RTC will be
registered, in order to allow the RTC register function to read clock.
Without doing that the clock can only be read after the probe function
has finished.

Signed-off-by: Alexander Holler <holler@ahsoftware.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-hid-sensor-time.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/rtc/rtc-hid-sensor-time.c b/drivers/rtc/rtc-hid-sensor-time.c
index 1ba369043b8d..a34e5cfd2ab5 100644
--- a/drivers/rtc/rtc-hid-sensor-time.c
+++ b/drivers/rtc/rtc-hid-sensor-time.c
@@ -281,11 +281,18 @@ static int hid_time_probe(struct platform_device *pdev)
 		goto err_open;
 	}
 
+	/*
+	 * Enable HID input processing early in order to be able to read the
+	 * clock already in devm_rtc_device_register().
+	 */
+	hid_device_io_start(hsdev->hdev);
+
 	time_state->rtc = devm_rtc_device_register(&pdev->dev,
 					"hid-sensor-time", &hid_time_rtc_ops,
 					THIS_MODULE);
 
 	if (IS_ERR_OR_NULL(time_state->rtc)) {
+		hid_device_io_stop(hsdev->hdev);
 		ret = time_state->rtc ? PTR_ERR(time_state->rtc) : -ENODEV;
 		time_state->rtc = NULL;
 		dev_err(&pdev->dev, "rtc device register failed!\n");
-- 
cgit 


From c32f74ab2872994bc8336ed367313da3139350ca Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Thu, 14 Nov 2013 14:32:01 -0800
Subject: sched: replace INIT_COMPLETION with reinit_completion

For the casual device driver writer, it is hard to remember when to use
init_completion (to init a completion structure) or INIT_COMPLETION (to
*reinit* a completion structure).  Furthermore, while all other
completion functions exepct a pointer as a parameter, INIT_COMPLETION
does not.  To make it easier to remember which function to use and to
make code more readable, introduce a new inline function with the proper
name and consistent argument type.  Update the kernel-doc for
init_completion while we are here.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org> (personally at LCE13)
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/completion.h | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/include/linux/completion.h b/include/linux/completion.h
index 22c33e35bcb2..124e4b4334c1 100644
--- a/include/linux/completion.h
+++ b/include/linux/completion.h
@@ -19,8 +19,8 @@
  *
  * See also:  complete(), wait_for_completion() (and friends _timeout,
  * _interruptible, _interruptible_timeout, and _killable), init_completion(),
- * and macros DECLARE_COMPLETION(), DECLARE_COMPLETION_ONSTACK(), and
- * INIT_COMPLETION().
+ * reinit_completion(), and macros DECLARE_COMPLETION(),
+ * DECLARE_COMPLETION_ONSTACK().
  */
 struct completion {
 	unsigned int done;
@@ -65,7 +65,7 @@ struct completion {
 
 /**
  * init_completion - Initialize a dynamically allocated completion
- * @x:  completion structure that is to be initialized
+ * @x:  pointer to completion structure that is to be initialized
  *
  * This inline function will initialize a dynamically created completion
  * structure.
@@ -76,6 +76,18 @@ static inline void init_completion(struct completion *x)
 	init_waitqueue_head(&x->wait);
 }
 
+/**
+ * reinit_completion - reinitialize a completion structure
+ * @x:  pointer to completion structure that is to be reinitialized
+ *
+ * This inline function should be used to reinitialize a completion structure so it can
+ * be reused. This is especially important after complete_all() is used.
+ */
+static inline void reinit_completion(struct completion *x)
+{
+	x->done = 0;
+}
+
 extern void wait_for_completion(struct completion *);
 extern void wait_for_completion_io(struct completion *);
 extern int wait_for_completion_interruptible(struct completion *x);
-- 
cgit 


From 16735d022f72b20ddbb2274b8e109f69575e9b2b Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Thu, 14 Nov 2013 14:32:02 -0800
Subject: tree-wide: use reinit_completion instead of INIT_COMPLETION

Use this new function to make code more comprehensible, since we are
reinitialzing the completion, not initializing.

[akpm@linux-foundation.org: linux-next resyncs]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org> (personally at LCE13)
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/arm/mach-tegra/apbio.c                          |  2 +-
 arch/powerpc/platforms/powermac/low_i2c.c            |  6 +++---
 arch/powerpc/platforms/pseries/suspend.c             |  2 +-
 crypto/af_alg.c                                      |  2 +-
 crypto/tcrypt.c                                      |  4 ++--
 crypto/testmgr.c                                     | 12 ++++++------
 drivers/ata/libata-eh.c                              |  4 ++--
 drivers/base/power/main.c                            |  4 ++--
 drivers/block/amiflop.c                              |  2 +-
 drivers/block/cciss.c                                |  4 ++--
 drivers/char/hw_random/timeriomem-rng.c              |  2 +-
 drivers/crypto/tegra-aes.c                           |  2 +-
 drivers/firewire/core-transaction.c                  |  2 +-
 drivers/gpu/drm/gma500/oaktrail_hdmi_i2c.c           |  2 +-
 drivers/hid/hid-wiimote.h                            |  2 +-
 drivers/hwmon/jz4740-hwmon.c                         |  2 +-
 drivers/i2c/busses/i2c-at91.c                        |  2 +-
 drivers/i2c/busses/i2c-bcm2835.c                     |  2 +-
 drivers/i2c/busses/i2c-davinci.c                     |  2 +-
 drivers/i2c/busses/i2c-designware-core.c             |  2 +-
 drivers/i2c/busses/i2c-ismt.c                        |  2 +-
 drivers/i2c/busses/i2c-mxs.c                         |  2 +-
 drivers/i2c/busses/i2c-omap.c                        |  2 +-
 drivers/i2c/busses/i2c-tegra.c                       |  2 +-
 drivers/i2c/busses/i2c-wmt.c                         |  4 ++--
 drivers/iio/adc/ad_sigma_delta.c                     |  6 +++---
 drivers/iio/adc/nau7802.c                            |  2 +-
 drivers/input/touchscreen/cyttsp_core.c              |  2 +-
 drivers/md/dm-crypt.c                                |  2 +-
 drivers/media/platform/blackfin/bfin_capture.c       |  2 +-
 drivers/media/radio/radio-wl1273.c                   | 10 +++++-----
 drivers/media/radio/si470x/radio-si470x-common.c     |  4 ++--
 drivers/media/rc/iguanair.c                          |  2 +-
 drivers/memstick/core/memstick.c                     |  2 +-
 drivers/memstick/host/r592.c                         |  2 +-
 drivers/misc/mic/card/mic_virtio.c                   |  2 +-
 drivers/misc/mic/host/mic_boot.c                     |  2 +-
 drivers/misc/ti-st/st_kim.c                          | 12 ++++++------
 drivers/mtd/nand/mxc_nand.c                          |  2 +-
 drivers/mtd/nand/r852.c                              |  2 +-
 drivers/mtd/onenand/omap2.c                          | 10 +++++-----
 drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c  |  2 +-
 drivers/net/ieee802154/at86rf230.c                   |  2 +-
 drivers/net/ieee802154/mrf24j40.c                    |  2 +-
 drivers/net/wireless/ath/ath10k/htc.c                |  4 ++--
 drivers/net/wireless/ath/ath10k/mac.c                | 18 +++++++++---------
 drivers/net/wireless/ath/carl9170/usb.c              |  2 +-
 drivers/net/wireless/ath/wil6210/main.c              |  2 +-
 drivers/net/wireless/brcm80211/brcmfmac/p2p.c        |  4 ++--
 drivers/net/wireless/zd1211rw/zd_usb.c               |  2 +-
 drivers/parport/parport_ip32.c                       |  4 ++--
 drivers/platform/x86/apple-gmux.c                    |  2 +-
 drivers/power/ab8500_fg.c                            |  4 ++--
 drivers/power/jz4740-battery.c                       |  2 +-
 drivers/rtc/rtc-hid-sensor-time.c                    |  2 +-
 drivers/spi/spi-bcm2835.c                            |  2 +-
 drivers/spi/spi-clps711x.c                           |  2 +-
 drivers/spi/spi-davinci.c                            |  2 +-
 drivers/spi/spi-fsl-espi.c                           |  2 +-
 drivers/spi/spi-fsl-spi.c                            |  2 +-
 drivers/spi/spi-mpc512x-psc.c                        |  2 +-
 drivers/spi/spi-mxs.c                                |  2 +-
 drivers/spi/spi-s3c64xx.c                            |  2 +-
 drivers/spi/spi-sh-msiof.c                           |  2 +-
 drivers/spi/spi-sirf.c                               |  4 ++--
 drivers/spi/spi-tegra114.c                           |  6 +++---
 drivers/spi/spi-tegra20-sflash.c                     |  2 +-
 drivers/spi/spi-tegra20-slink.c                      |  6 +++---
 drivers/spi/spi-xilinx.c                             |  2 +-
 drivers/spi/spi.c                                    |  2 +-
 drivers/staging/iio/adc/mxs-lradc.c                  |  2 +-
 drivers/staging/media/solo6x10/solo6x10-p2m.c        |  2 +-
 drivers/staging/tidspbridge/core/sync.c              |  4 ++--
 drivers/staging/tidspbridge/include/dspbridge/sync.h |  2 +-
 drivers/staging/tidspbridge/rmgr/drv_interface.c     |  6 +++---
 drivers/tty/metag_da.c                               |  2 +-
 drivers/usb/c67x00/c67x00-sched.c                    |  2 +-
 drivers/usb/gadget/f_fs.c                            |  2 +-
 drivers/usb/serial/mos7720.c                         |  2 +-
 drivers/video/exynos/exynos_mipi_dsi_common.c        |  4 ++--
 drivers/video/omap2/displays-new/encoder-tpd12s015.c |  2 +-
 fs/ecryptfs/crypto.c                                 |  2 +-
 fs/nfs/nfs4state.c                                   |  2 +-
 fs/ocfs2/dlmglue.c                                   |  4 ++--
 sound/firewire/dice.c                                |  2 +-
 sound/soc/samsung/ac97.c                             |  6 +++---
 86 files changed, 138 insertions(+), 138 deletions(-)

diff --git a/arch/arm/mach-tegra/apbio.c b/arch/arm/mach-tegra/apbio.c
index d7aa52ea6cfc..bc471973cf04 100644
--- a/arch/arm/mach-tegra/apbio.c
+++ b/arch/arm/mach-tegra/apbio.c
@@ -114,7 +114,7 @@ static int do_dma_transfer(unsigned long apb_add,
 	dma_desc->callback = apb_dma_complete;
 	dma_desc->callback_param = NULL;
 
-	INIT_COMPLETION(tegra_apb_wait);
+	reinit_completion(&tegra_apb_wait);
 
 	dmaengine_submit(dma_desc);
 	dma_async_issue_pending(tegra_apb_dma_chan);
diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c
index fc536f2971c0..7553b6a77c64 100644
--- a/arch/powerpc/platforms/powermac/low_i2c.c
+++ b/arch/powerpc/platforms/powermac/low_i2c.c
@@ -452,7 +452,7 @@ static int kw_i2c_xfer(struct pmac_i2c_bus *bus, u8 addrdir, int subsize,
 	 */
 	if (use_irq) {
 		/* Clear completion */
-		INIT_COMPLETION(host->complete);
+		reinit_completion(&host->complete);
 		/* Ack stale interrupts */
 		kw_write_reg(reg_isr, kw_read_reg(reg_isr));
 		/* Arm timeout */
@@ -717,7 +717,7 @@ static int pmu_i2c_xfer(struct pmac_i2c_bus *bus, u8 addrdir, int subsize,
 			return -EINVAL;
 		}
 
-		INIT_COMPLETION(comp);
+		reinit_completion(&comp);
 		req->data[0] = PMU_I2C_CMD;
 		req->reply[0] = 0xff;
 		req->nbytes = sizeof(struct pmu_i2c_hdr) + 1;
@@ -748,7 +748,7 @@ static int pmu_i2c_xfer(struct pmac_i2c_bus *bus, u8 addrdir, int subsize,
 
 		hdr->bus = PMU_I2C_BUS_STATUS;
 
-		INIT_COMPLETION(comp);
+		reinit_completion(&comp);
 		req->data[0] = PMU_I2C_CMD;
 		req->reply[0] = 0xff;
 		req->nbytes = 2;
diff --git a/arch/powerpc/platforms/pseries/suspend.c b/arch/powerpc/platforms/pseries/suspend.c
index 5f997e79d570..16a255255d30 100644
--- a/arch/powerpc/platforms/pseries/suspend.c
+++ b/arch/powerpc/platforms/pseries/suspend.c
@@ -106,7 +106,7 @@ static int pseries_prepare_late(void)
 	atomic_set(&suspend_data.done, 0);
 	atomic_set(&suspend_data.error, 0);
 	suspend_data.complete = &suspend_work;
-	INIT_COMPLETION(suspend_work);
+	reinit_completion(&suspend_work);
 	return 0;
 }
 
diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index ac33d5f30778..966f893711b3 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -434,7 +434,7 @@ int af_alg_wait_for_completion(int err, struct af_alg_completion *completion)
 	case -EINPROGRESS:
 	case -EBUSY:
 		wait_for_completion(&completion->completion);
-		INIT_COMPLETION(completion->completion);
+		reinit_completion(&completion->completion);
 		err = completion->err;
 		break;
 	};
diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 25a5934f0e50..1ab8258fcf56 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -493,7 +493,7 @@ static inline int do_one_ahash_op(struct ahash_request *req, int ret)
 		ret = wait_for_completion_interruptible(&tr->completion);
 		if (!ret)
 			ret = tr->err;
-		INIT_COMPLETION(tr->completion);
+		reinit_completion(&tr->completion);
 	}
 	return ret;
 }
@@ -721,7 +721,7 @@ static inline int do_one_acipher_op(struct ablkcipher_request *req, int ret)
 		ret = wait_for_completion_interruptible(&tr->completion);
 		if (!ret)
 			ret = tr->err;
-		INIT_COMPLETION(tr->completion);
+		reinit_completion(&tr->completion);
 	}
 
 	return ret;
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index e091ef6e1791..432afc03e7c3 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -179,7 +179,7 @@ static int do_one_async_hash_op(struct ahash_request *req,
 		ret = wait_for_completion_interruptible(&tr->completion);
 		if (!ret)
 			ret = tr->err;
-		INIT_COMPLETION(tr->completion);
+		reinit_completion(&tr->completion);
 	}
 	return ret;
 }
@@ -336,7 +336,7 @@ static int __test_hash(struct crypto_ahash *tfm, struct hash_testvec *template,
 				ret = wait_for_completion_interruptible(
 					&tresult.completion);
 				if (!ret && !(ret = tresult.err)) {
-					INIT_COMPLETION(tresult.completion);
+					reinit_completion(&tresult.completion);
 					break;
 				}
 				/* fall through */
@@ -543,7 +543,7 @@ static int __test_aead(struct crypto_aead *tfm, int enc,
 				ret = wait_for_completion_interruptible(
 					&result.completion);
 				if (!ret && !(ret = result.err)) {
-					INIT_COMPLETION(result.completion);
+					reinit_completion(&result.completion);
 					break;
 				}
 			case -EBADMSG:
@@ -697,7 +697,7 @@ static int __test_aead(struct crypto_aead *tfm, int enc,
 				ret = wait_for_completion_interruptible(
 					&result.completion);
 				if (!ret && !(ret = result.err)) {
-					INIT_COMPLETION(result.completion);
+					reinit_completion(&result.completion);
 					break;
 				}
 			case -EBADMSG:
@@ -983,7 +983,7 @@ static int __test_skcipher(struct crypto_ablkcipher *tfm, int enc,
 				ret = wait_for_completion_interruptible(
 					&result.completion);
 				if (!ret && !((ret = result.err))) {
-					INIT_COMPLETION(result.completion);
+					reinit_completion(&result.completion);
 					break;
 				}
 				/* fall through */
@@ -1086,7 +1086,7 @@ static int __test_skcipher(struct crypto_ablkcipher *tfm, int enc,
 				ret = wait_for_completion_interruptible(
 					&result.completion);
 				if (!ret && !((ret = result.err))) {
-					INIT_COMPLETION(result.completion);
+					reinit_completion(&result.completion);
 					break;
 				}
 				/* fall through */
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 77bbc8266883..92d7797223be 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -3017,7 +3017,7 @@ static inline void ata_eh_pull_park_action(struct ata_port *ap)
 	 * ourselves at the beginning of each pass over the loop.
 	 *
 	 * Additionally, all write accesses to &ap->park_req_pending
-	 * through INIT_COMPLETION() (see below) or complete_all()
+	 * through reinit_completion() (see below) or complete_all()
 	 * (see ata_scsi_park_store()) are protected by the host lock.
 	 * As a result we have that park_req_pending.done is zero on
 	 * exit from this function, i.e. when ATA_EH_PARK actions for
@@ -3031,7 +3031,7 @@ static inline void ata_eh_pull_park_action(struct ata_port *ap)
 	 */
 
 	spin_lock_irqsave(ap->lock, flags);
-	INIT_COMPLETION(ap->park_req_pending);
+	reinit_completion(&ap->park_req_pending);
 	ata_for_each_link(link, ap, EDGE) {
 		ata_for_each_dev(dev, link, ALL) {
 			struct ata_eh_info *ehi = &link->eh_info;
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index ee039afe9078..c12e9b9556be 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -757,7 +757,7 @@ void dpm_resume(pm_message_t state)
 	async_error = 0;
 
 	list_for_each_entry(dev, &dpm_suspended_list, power.entry) {
-		INIT_COMPLETION(dev->power.completion);
+		reinit_completion(&dev->power.completion);
 		if (is_async(dev)) {
 			get_device(dev);
 			async_schedule(async_resume, dev);
@@ -1237,7 +1237,7 @@ static void async_suspend(void *data, async_cookie_t cookie)
 
 static int device_suspend(struct device *dev)
 {
-	INIT_COMPLETION(dev->power.completion);
+	reinit_completion(&dev->power.completion);
 
 	if (pm_async_enabled && dev->power.async_suspend) {
 		get_device(dev);
diff --git a/drivers/block/amiflop.c b/drivers/block/amiflop.c
index 4ff85b8785ee..748dea4f34dc 100644
--- a/drivers/block/amiflop.c
+++ b/drivers/block/amiflop.c
@@ -343,7 +343,7 @@ static int fd_motor_on(int nr)
 		unit[nr].motor = 1;
 		fd_select(nr);
 
-		INIT_COMPLETION(motor_on_completion);
+		reinit_completion(&motor_on_completion);
 		motor_on_timer.data = nr;
 		mod_timer(&motor_on_timer, jiffies + HZ/2);
 
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index 0c004ac05811..b35fc4f5237c 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -2808,7 +2808,7 @@ resend_cmd2:
 		/* erase the old error information */
 		memset(c->err_info, 0, sizeof(ErrorInfo_struct));
 		return_status = IO_OK;
-		INIT_COMPLETION(wait);
+		reinit_completion(&wait);
 		goto resend_cmd2;
 	}
 
@@ -3669,7 +3669,7 @@ static int add_to_scan_list(struct ctlr_info *h)
 		}
 	}
 	if (!found && !h->busy_scanning) {
-		INIT_COMPLETION(h->scan_wait);
+		reinit_completion(&h->scan_wait);
 		list_add_tail(&h->scan_list, &scan_q);
 		ret = 1;
 	}
diff --git a/drivers/char/hw_random/timeriomem-rng.c b/drivers/char/hw_random/timeriomem-rng.c
index d2120ba8f3f9..73ce739f8e19 100644
--- a/drivers/char/hw_random/timeriomem-rng.c
+++ b/drivers/char/hw_random/timeriomem-rng.c
@@ -79,7 +79,7 @@ static int timeriomem_rng_data_read(struct hwrng *rng, u32 *data)
 	priv->expires = cur + delay;
 	priv->present = 0;
 
-	INIT_COMPLETION(priv->completion);
+	reinit_completion(&priv->completion);
 	mod_timer(&priv->timer, priv->expires);
 
 	return 4;
diff --git a/drivers/crypto/tegra-aes.c b/drivers/crypto/tegra-aes.c
index 2d58da972ae2..fa05e3c329bd 100644
--- a/drivers/crypto/tegra-aes.c
+++ b/drivers/crypto/tegra-aes.c
@@ -268,7 +268,7 @@ static int aes_start_crypt(struct tegra_aes_dev *dd, u32 in_addr, u32 out_addr,
 	aes_writel(dd, value, TEGRA_AES_SECURE_INPUT_SELECT);
 
 	aes_writel(dd, out_addr, TEGRA_AES_SECURE_DEST_ADDR);
-	INIT_COMPLETION(dd->op_complete);
+	reinit_completion(&dd->op_complete);
 
 	for (i = 0; i < AES_HW_MAX_ICQ_LENGTH - 1; i++) {
 		do {
diff --git a/drivers/firewire/core-transaction.c b/drivers/firewire/core-transaction.c
index e5af0e3a26ec..0e799516a2ab 100644
--- a/drivers/firewire/core-transaction.c
+++ b/drivers/firewire/core-transaction.c
@@ -477,7 +477,7 @@ void fw_send_phy_config(struct fw_card *card,
 	phy_config_packet.header[1] = data;
 	phy_config_packet.header[2] = ~data;
 	phy_config_packet.generation = generation;
-	INIT_COMPLETION(phy_config_done);
+	reinit_completion(&phy_config_done);
 
 	card->driver->send_request(card, &phy_config_packet);
 	wait_for_completion_timeout(&phy_config_done, timeout);
diff --git a/drivers/gpu/drm/gma500/oaktrail_hdmi_i2c.c b/drivers/gpu/drm/gma500/oaktrail_hdmi_i2c.c
index 1eb86c79523e..e28107061148 100644
--- a/drivers/gpu/drm/gma500/oaktrail_hdmi_i2c.c
+++ b/drivers/gpu/drm/gma500/oaktrail_hdmi_i2c.c
@@ -99,7 +99,7 @@ static int xfer_read(struct i2c_adapter *adap, struct i2c_msg *pmsg)
 	i2c_dev->status = I2C_STAT_INIT;
 	i2c_dev->msg = pmsg;
 	i2c_dev->buf_offset = 0;
-	INIT_COMPLETION(i2c_dev->complete);
+	reinit_completion(&i2c_dev->complete);
 
 	/* Enable I2C transaction */
 	temp = ((pmsg->len) << 20) | HI2C_EDID_READ | HI2C_ENABLE_TRANSACTION;
diff --git a/drivers/hid/hid-wiimote.h b/drivers/hid/hid-wiimote.h
index 75db0c400037..cfa63b0825b0 100644
--- a/drivers/hid/hid-wiimote.h
+++ b/drivers/hid/hid-wiimote.h
@@ -327,7 +327,7 @@ static inline void wiimote_cmd_acquire_noint(struct wiimote_data *wdata)
 static inline void wiimote_cmd_set(struct wiimote_data *wdata, int cmd,
 								__u32 opt)
 {
-	INIT_COMPLETION(wdata->state.ready);
+	reinit_completion(&wdata->state.ready);
 	wdata->state.cmd = cmd;
 	wdata->state.opt = opt;
 }
diff --git a/drivers/hwmon/jz4740-hwmon.c b/drivers/hwmon/jz4740-hwmon.c
index e0d66b9590ab..a183e488db78 100644
--- a/drivers/hwmon/jz4740-hwmon.c
+++ b/drivers/hwmon/jz4740-hwmon.c
@@ -66,7 +66,7 @@ static ssize_t jz4740_hwmon_read_adcin(struct device *dev,
 
 	mutex_lock(&hwmon->lock);
 
-	INIT_COMPLETION(*completion);
+	reinit_completion(completion);
 
 	enable_irq(hwmon->irq);
 	hwmon->cell->enable(to_platform_device(dev));
diff --git a/drivers/i2c/busses/i2c-at91.c b/drivers/i2c/busses/i2c-at91.c
index fd059308affa..8edba9de76df 100644
--- a/drivers/i2c/busses/i2c-at91.c
+++ b/drivers/i2c/busses/i2c-at91.c
@@ -371,7 +371,7 @@ static int at91_do_twi_transfer(struct at91_twi_dev *dev)
 	dev_dbg(dev->dev, "transfer: %s %d bytes.\n",
 		(dev->msg->flags & I2C_M_RD) ? "read" : "write", dev->buf_len);
 
-	INIT_COMPLETION(dev->cmd_complete);
+	reinit_completion(&dev->cmd_complete);
 	dev->transfer_status = 0;
 
 	if (!dev->buf_len) {
diff --git a/drivers/i2c/busses/i2c-bcm2835.c b/drivers/i2c/busses/i2c-bcm2835.c
index ea4b08fc3353..d7e8600f31fb 100644
--- a/drivers/i2c/busses/i2c-bcm2835.c
+++ b/drivers/i2c/busses/i2c-bcm2835.c
@@ -151,7 +151,7 @@ static int bcm2835_i2c_xfer_msg(struct bcm2835_i2c_dev *i2c_dev,
 
 	i2c_dev->msg_buf = msg->buf;
 	i2c_dev->msg_buf_remaining = msg->len;
-	INIT_COMPLETION(i2c_dev->completion);
+	reinit_completion(&i2c_dev->completion);
 
 	bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_C, BCM2835_I2C_C_CLEAR);
 
diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c
index 132369fad4e0..960dec61c64e 100644
--- a/drivers/i2c/busses/i2c-davinci.c
+++ b/drivers/i2c/busses/i2c-davinci.c
@@ -323,7 +323,7 @@ i2c_davinci_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg, int stop)
 
 	davinci_i2c_write_reg(dev, DAVINCI_I2C_CNT_REG, dev->buf_len);
 
-	INIT_COMPLETION(dev->cmd_complete);
+	reinit_completion(&dev->cmd_complete);
 	dev->cmd_err = 0;
 
 	/* Take I2C out of reset and configure it as master */
diff --git a/drivers/i2c/busses/i2c-designware-core.c b/drivers/i2c/busses/i2c-designware-core.c
index 5888feef1ac5..e89e3e2145e5 100644
--- a/drivers/i2c/busses/i2c-designware-core.c
+++ b/drivers/i2c/busses/i2c-designware-core.c
@@ -613,7 +613,7 @@ i2c_dw_xfer(struct i2c_adapter *adap, struct i2c_msg msgs[], int num)
 	mutex_lock(&dev->lock);
 	pm_runtime_get_sync(dev->dev);
 
-	INIT_COMPLETION(dev->cmd_complete);
+	reinit_completion(&dev->cmd_complete);
 	dev->msgs = msgs;
 	dev->msgs_num = num;
 	dev->cmd_err = 0;
diff --git a/drivers/i2c/busses/i2c-ismt.c b/drivers/i2c/busses/i2c-ismt.c
index 1672effbcebb..0043ede234c2 100644
--- a/drivers/i2c/busses/i2c-ismt.c
+++ b/drivers/i2c/busses/i2c-ismt.c
@@ -541,7 +541,7 @@ static int ismt_access(struct i2c_adapter *adap, u16 addr,
 		desc->dptr_high = upper_32_bits(dma_addr);
 	}
 
-	INIT_COMPLETION(priv->cmp);
+	reinit_completion(&priv->cmp);
 
 	/* Add the descriptor */
 	ismt_submit_desc(priv);
diff --git a/drivers/i2c/busses/i2c-mxs.c b/drivers/i2c/busses/i2c-mxs.c
index b7c857774708..3aedd86a6468 100644
--- a/drivers/i2c/busses/i2c-mxs.c
+++ b/drivers/i2c/busses/i2c-mxs.c
@@ -505,7 +505,7 @@ static int mxs_i2c_xfer_msg(struct i2c_adapter *adap, struct i2c_msg *msg,
 				return err;
 		}
 	} else {
-		INIT_COMPLETION(i2c->cmd_complete);
+		reinit_completion(&i2c->cmd_complete);
 		ret = mxs_i2c_dma_setup_xfer(adap, msg, flags);
 		if (ret)
 			return ret;
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 9967a6f9c2ff..a6a891d7970d 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -543,7 +543,7 @@ static int omap_i2c_xfer_msg(struct i2c_adapter *adap,
 	w |= OMAP_I2C_BUF_RXFIF_CLR | OMAP_I2C_BUF_TXFIF_CLR;
 	omap_i2c_write_reg(dev, OMAP_I2C_BUF_REG, w);
 
-	INIT_COMPLETION(dev->cmd_complete);
+	reinit_completion(&dev->cmd_complete);
 	dev->cmd_err = 0;
 
 	w = OMAP_I2C_CON_EN | OMAP_I2C_CON_MST | OMAP_I2C_CON_STT;
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index c457cb447c66..e661edee4d0c 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -544,7 +544,7 @@ static int tegra_i2c_xfer_msg(struct tegra_i2c_dev *i2c_dev,
 	i2c_dev->msg_buf_remaining = msg->len;
 	i2c_dev->msg_err = I2C_ERR_NONE;
 	i2c_dev->msg_read = (msg->flags & I2C_M_RD);
-	INIT_COMPLETION(i2c_dev->msg_complete);
+	reinit_completion(&i2c_dev->msg_complete);
 
 	packet_header = (0 << PACKET_HEADER0_HEADER_SIZE_SHIFT) |
 			PACKET_HEADER0_PROTOCOL_I2C |
diff --git a/drivers/i2c/busses/i2c-wmt.c b/drivers/i2c/busses/i2c-wmt.c
index c65da3d913a0..31395fa8121d 100644
--- a/drivers/i2c/busses/i2c-wmt.c
+++ b/drivers/i2c/busses/i2c-wmt.c
@@ -158,7 +158,7 @@ static int wmt_i2c_write(struct i2c_adapter *adap, struct i2c_msg *pmsg,
 		writew(val, i2c_dev->base + REG_CR);
 	}
 
-	INIT_COMPLETION(i2c_dev->complete);
+	reinit_completion(&i2c_dev->complete);
 
 	if (i2c_dev->mode == I2C_MODE_STANDARD)
 		tcr_val = TCR_STANDARD_MODE;
@@ -247,7 +247,7 @@ static int wmt_i2c_read(struct i2c_adapter *adap, struct i2c_msg *pmsg,
 		writew(val, i2c_dev->base + REG_CR);
 	}
 
-	INIT_COMPLETION(i2c_dev->complete);
+	reinit_completion(&i2c_dev->complete);
 
 	if (i2c_dev->mode == I2C_MODE_STANDARD)
 		tcr_val = TCR_STANDARD_MODE;
diff --git a/drivers/iio/adc/ad_sigma_delta.c b/drivers/iio/adc/ad_sigma_delta.c
index e6fbd3e70981..9a4e0e32a771 100644
--- a/drivers/iio/adc/ad_sigma_delta.c
+++ b/drivers/iio/adc/ad_sigma_delta.c
@@ -188,7 +188,7 @@ static int ad_sd_calibrate(struct ad_sigma_delta *sigma_delta,
 
 	spi_bus_lock(sigma_delta->spi->master);
 	sigma_delta->bus_locked = true;
-	INIT_COMPLETION(sigma_delta->completion);
+	reinit_completion(&sigma_delta->completion);
 
 	ret = ad_sigma_delta_set_mode(sigma_delta, mode);
 	if (ret < 0)
@@ -259,7 +259,7 @@ int ad_sigma_delta_single_conversion(struct iio_dev *indio_dev,
 
 	spi_bus_lock(sigma_delta->spi->master);
 	sigma_delta->bus_locked = true;
-	INIT_COMPLETION(sigma_delta->completion);
+	reinit_completion(&sigma_delta->completion);
 
 	ad_sigma_delta_set_mode(sigma_delta, AD_SD_MODE_SINGLE);
 
@@ -343,7 +343,7 @@ static int ad_sd_buffer_postdisable(struct iio_dev *indio_dev)
 {
 	struct ad_sigma_delta *sigma_delta = iio_device_get_drvdata(indio_dev);
 
-	INIT_COMPLETION(sigma_delta->completion);
+	reinit_completion(&sigma_delta->completion);
 	wait_for_completion_timeout(&sigma_delta->completion, HZ);
 
 	if (!sigma_delta->irq_dis) {
diff --git a/drivers/iio/adc/nau7802.c b/drivers/iio/adc/nau7802.c
index 54c5babe6746..e525aa6475c4 100644
--- a/drivers/iio/adc/nau7802.c
+++ b/drivers/iio/adc/nau7802.c
@@ -190,7 +190,7 @@ static int nau7802_read_irq(struct iio_dev *indio_dev,
 	struct nau7802_state *st = iio_priv(indio_dev);
 	int ret;
 
-	INIT_COMPLETION(st->value_ok);
+	reinit_completion(&st->value_ok);
 	enable_irq(st->client->irq);
 
 	nau7802_sync(st);
diff --git a/drivers/input/touchscreen/cyttsp_core.c b/drivers/input/touchscreen/cyttsp_core.c
index d53e0b72a407..4204841cdc49 100644
--- a/drivers/input/touchscreen/cyttsp_core.c
+++ b/drivers/input/touchscreen/cyttsp_core.c
@@ -242,7 +242,7 @@ static int cyttsp_soft_reset(struct cyttsp *ts)
 	int retval;
 
 	/* wait for interrupt to set ready completion */
-	INIT_COMPLETION(ts->bl_ready);
+	reinit_completion(&ts->bl_ready);
 	ts->state = CY_BL_STATE;
 
 	enable_irq(ts->irq);
diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 50ea7ed24dce..81b0fa660452 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -950,7 +950,7 @@ static int crypt_convert(struct crypt_config *cc,
 		/* async */
 		case -EBUSY:
 			wait_for_completion(&ctx->restart);
-			INIT_COMPLETION(ctx->restart);
+			reinit_completion(&ctx->restart);
 			/* fall through*/
 		case -EINPROGRESS:
 			this_cc->req = NULL;
diff --git a/drivers/media/platform/blackfin/bfin_capture.c b/drivers/media/platform/blackfin/bfin_capture.c
index 4c1105977090..281916591437 100644
--- a/drivers/media/platform/blackfin/bfin_capture.c
+++ b/drivers/media/platform/blackfin/bfin_capture.c
@@ -422,7 +422,7 @@ static int bcap_start_streaming(struct vb2_queue *vq, unsigned int count)
 		return ret;
 	}
 
-	INIT_COMPLETION(bcap_dev->comp);
+	reinit_completion(&bcap_dev->comp);
 	bcap_dev->stop = false;
 	return 0;
 }
diff --git a/drivers/media/radio/radio-wl1273.c b/drivers/media/radio/radio-wl1273.c
index 97c2c18803ef..9cf6731fb816 100644
--- a/drivers/media/radio/radio-wl1273.c
+++ b/drivers/media/radio/radio-wl1273.c
@@ -375,7 +375,7 @@ static int wl1273_fm_set_tx_freq(struct wl1273_device *radio, unsigned int freq)
 	if (r)
 		return r;
 
-	INIT_COMPLETION(radio->busy);
+	reinit_completion(&radio->busy);
 
 	/* wait for the FR IRQ */
 	r = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(2000));
@@ -389,7 +389,7 @@ static int wl1273_fm_set_tx_freq(struct wl1273_device *radio, unsigned int freq)
 	if (r)
 		return r;
 
-	INIT_COMPLETION(radio->busy);
+	reinit_completion(&radio->busy);
 
 	/* wait for the POWER_ENB IRQ */
 	r = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(1000));
@@ -444,7 +444,7 @@ static int wl1273_fm_set_rx_freq(struct wl1273_device *radio, unsigned int freq)
 		goto err;
 	}
 
-	INIT_COMPLETION(radio->busy);
+	reinit_completion(&radio->busy);
 
 	r = wait_for_completion_timeout(&radio->busy, msecs_to_jiffies(2000));
 	if (!r) {
@@ -805,7 +805,7 @@ static int wl1273_fm_set_seek(struct wl1273_device *radio,
 	if (level < SCHAR_MIN || level > SCHAR_MAX)
 		return -EINVAL;
 
-	INIT_COMPLETION(radio->busy);
+	reinit_completion(&radio->busy);
 	dev_dbg(radio->dev, "%s: BUSY\n", __func__);
 
 	r = core->write(core, WL1273_INT_MASK_SET, radio->irq_flags);
@@ -847,7 +847,7 @@ static int wl1273_fm_set_seek(struct wl1273_device *radio,
 	if (r)
 		goto out;
 
-	INIT_COMPLETION(radio->busy);
+	reinit_completion(&radio->busy);
 	dev_dbg(radio->dev, "%s: BUSY\n", __func__);
 
 	r = core->write(core, WL1273_TUNER_MODE_SET, TUNER_MODE_AUTO_SEEK);
diff --git a/drivers/media/radio/si470x/radio-si470x-common.c b/drivers/media/radio/si470x/radio-si470x-common.c
index 5c57e5b0f949..0bd250068285 100644
--- a/drivers/media/radio/si470x/radio-si470x-common.c
+++ b/drivers/media/radio/si470x/radio-si470x-common.c
@@ -218,7 +218,7 @@ static int si470x_set_chan(struct si470x_device *radio, unsigned short chan)
 		goto done;
 
 	/* wait till tune operation has completed */
-	INIT_COMPLETION(radio->completion);
+	reinit_completion(&radio->completion);
 	retval = wait_for_completion_timeout(&radio->completion,
 			msecs_to_jiffies(tune_timeout));
 	if (!retval)
@@ -341,7 +341,7 @@ static int si470x_set_seek(struct si470x_device *radio,
 		return retval;
 
 	/* wait till tune operation has completed */
-	INIT_COMPLETION(radio->completion);
+	reinit_completion(&radio->completion);
 	retval = wait_for_completion_timeout(&radio->completion,
 			msecs_to_jiffies(seek_timeout));
 	if (!retval)
diff --git a/drivers/media/rc/iguanair.c b/drivers/media/rc/iguanair.c
index 19632b1c2190..b53626ba6f49 100644
--- a/drivers/media/rc/iguanair.c
+++ b/drivers/media/rc/iguanair.c
@@ -207,7 +207,7 @@ static int iguanair_send(struct iguanair *ir, unsigned size)
 {
 	int rc;
 
-	INIT_COMPLETION(ir->completion);
+	reinit_completion(&ir->completion);
 
 	ir->urb_out->transfer_buffer_length = size;
 	rc = usb_submit_urb(ir->urb_out, GFP_KERNEL);
diff --git a/drivers/memstick/core/memstick.c b/drivers/memstick/core/memstick.c
index bbf4aea1627d..a0547dbf9806 100644
--- a/drivers/memstick/core/memstick.c
+++ b/drivers/memstick/core/memstick.c
@@ -253,7 +253,7 @@ void memstick_new_req(struct memstick_host *host)
 {
 	if (host->card) {
 		host->retries = cmd_retries;
-		INIT_COMPLETION(host->card->mrq_complete);
+		reinit_completion(&host->card->mrq_complete);
 		host->request(host);
 	}
 }
diff --git a/drivers/memstick/host/r592.c b/drivers/memstick/host/r592.c
index 1b6e91345222..31727bf285d0 100644
--- a/drivers/memstick/host/r592.c
+++ b/drivers/memstick/host/r592.c
@@ -290,7 +290,7 @@ static int r592_transfer_fifo_dma(struct r592_device *dev)
 	dbg_verbose("doing dma transfer");
 
 	dev->dma_error = 0;
-	INIT_COMPLETION(dev->dma_done);
+	reinit_completion(&dev->dma_done);
 
 	/* TODO: hidden assumption about nenth beeing always 1 */
 	sg_count = dma_map_sg(&dev->pci_dev->dev, &dev->req->sg, 1, is_write ?
diff --git a/drivers/misc/mic/card/mic_virtio.c b/drivers/misc/mic/card/mic_virtio.c
index 914cc9b2caad..8aa42e738acc 100644
--- a/drivers/misc/mic/card/mic_virtio.c
+++ b/drivers/misc/mic/card/mic_virtio.c
@@ -493,7 +493,7 @@ static int mic_remove_device(struct mic_device_desc __iomem *d,
 			ioread8(&dc->config_change), ioread8(&d->type), mvdev);
 
 		status = ioread8(&d->status);
-		INIT_COMPLETION(mvdev->reset_done);
+		reinit_completion(&mvdev->reset_done);
 		unregister_virtio_device(&mvdev->vdev);
 		mic_free_card_irq(mvdev->virtio_cookie, mvdev);
 		if (status & VIRTIO_CONFIG_S_DRIVER_OK)
diff --git a/drivers/misc/mic/host/mic_boot.c b/drivers/misc/mic/host/mic_boot.c
index b079c65eed6d..7558d9186438 100644
--- a/drivers/misc/mic/host/mic_boot.c
+++ b/drivers/misc/mic/host/mic_boot.c
@@ -38,7 +38,7 @@ static void mic_reset(struct mic_device *mdev)
 
 #define MIC_RESET_TO (45)
 
-	INIT_COMPLETION(mdev->reset_wait);
+	reinit_completion(&mdev->reset_wait);
 	mdev->ops->reset_fw_ready(mdev);
 	mdev->ops->reset(mdev);
 
diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c
index 83907c720594..96853a09788a 100644
--- a/drivers/misc/ti-st/st_kim.c
+++ b/drivers/misc/ti-st/st_kim.c
@@ -218,7 +218,7 @@ static long read_local_version(struct kim_data_s *kim_gdata, char *bts_scr_name)
 
 	pr_debug("%s", __func__);
 
-	INIT_COMPLETION(kim_gdata->kim_rcvd);
+	reinit_completion(&kim_gdata->kim_rcvd);
 	if (4 != st_int_write(kim_gdata->core_data, read_ver_cmd, 4)) {
 		pr_err("kim: couldn't write 4 bytes");
 		return -EIO;
@@ -229,7 +229,7 @@ static long read_local_version(struct kim_data_s *kim_gdata, char *bts_scr_name)
 		pr_err(" waiting for ver info- timed out ");
 		return -ETIMEDOUT;
 	}
-	INIT_COMPLETION(kim_gdata->kim_rcvd);
+	reinit_completion(&kim_gdata->kim_rcvd);
 	/* the positions 12 & 13 in the response buffer provide with the
 	 * chip, major & minor numbers
 	 */
@@ -362,7 +362,7 @@ static long download_firmware(struct kim_data_s *kim_gdata)
 			/* reinit completion before sending for the
 			 * relevant wait
 			 */
-			INIT_COMPLETION(kim_gdata->kim_rcvd);
+			reinit_completion(&kim_gdata->kim_rcvd);
 
 			/*
 			 * Free space found in uart buffer, call st_int_write
@@ -398,7 +398,7 @@ static long download_firmware(struct kim_data_s *kim_gdata)
 				release_firmware(kim_gdata->fw_entry);
 				return -ETIMEDOUT;
 			}
-			INIT_COMPLETION(kim_gdata->kim_rcvd);
+			reinit_completion(&kim_gdata->kim_rcvd);
 			break;
 		case ACTION_DELAY:	/* sleep */
 			pr_info("sleep command in scr");
@@ -474,7 +474,7 @@ long st_kim_start(void *kim_data)
 		gpio_set_value(kim_gdata->nshutdown, GPIO_HIGH);
 		mdelay(100);
 		/* re-initialize the completion */
-		INIT_COMPLETION(kim_gdata->ldisc_installed);
+		reinit_completion(&kim_gdata->ldisc_installed);
 		/* send notification to UIM */
 		kim_gdata->ldisc_install = 1;
 		pr_info("ldisc_install = 1");
@@ -525,7 +525,7 @@ long st_kim_stop(void *kim_data)
 		kim_gdata->kim_pdev->dev.platform_data;
 	struct tty_struct	*tty = kim_gdata->core_data->tty;
 
-	INIT_COMPLETION(kim_gdata->ldisc_installed);
+	reinit_completion(&kim_gdata->ldisc_installed);
 
 	if (tty) {	/* can be called before ldisc is installed */
 		/* Flush any pending characters in the driver and discipline. */
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 4edea7f4462f..9dfdb06c508b 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -396,7 +396,7 @@ static void wait_op_done(struct mxc_nand_host *host, int useirq)
 
 	if (useirq) {
 		if (!host->devtype_data->check_int(host)) {
-			INIT_COMPLETION(host->op_completion);
+			reinit_completion(&host->op_completion);
 			irq_control(host, 1);
 			wait_for_completion(&host->op_completion);
 		}
diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c
index 9dcf02d22aa8..325930db3f04 100644
--- a/drivers/mtd/nand/r852.c
+++ b/drivers/mtd/nand/r852.c
@@ -181,7 +181,7 @@ static void r852_do_dma(struct r852_device *dev, uint8_t *buf, int do_read)
 	/* Set dma direction */
 	dev->dma_dir = do_read;
 	dev->dma_stage = 1;
-	INIT_COMPLETION(dev->dma_done);
+	reinit_completion(&dev->dma_done);
 
 	dbg_verbose("doing dma %s ", do_read ? "read" : "write");
 
diff --git a/drivers/mtd/onenand/omap2.c b/drivers/mtd/onenand/omap2.c
index 2362909d20c0..6547c84afc3a 100644
--- a/drivers/mtd/onenand/omap2.c
+++ b/drivers/mtd/onenand/omap2.c
@@ -159,7 +159,7 @@ static int omap2_onenand_wait(struct mtd_info *mtd, int state)
 				syscfg = read_reg(c, ONENAND_REG_SYS_CFG1);
 		}
 
-		INIT_COMPLETION(c->irq_done);
+		reinit_completion(&c->irq_done);
 		if (c->gpio_irq) {
 			result = gpio_get_value(c->gpio_irq);
 			if (result == -1) {
@@ -349,7 +349,7 @@ static int omap3_onenand_read_bufferram(struct mtd_info *mtd, int area,
 	omap_set_dma_dest_params(c->dma_channel, 0, OMAP_DMA_AMODE_POST_INC,
 				 dma_dst, 0, 0);
 
-	INIT_COMPLETION(c->dma_done);
+	reinit_completion(&c->dma_done);
 	omap_start_dma(c->dma_channel);
 
 	timeout = jiffies + msecs_to_jiffies(20);
@@ -420,7 +420,7 @@ static int omap3_onenand_write_bufferram(struct mtd_info *mtd, int area,
 	omap_set_dma_dest_params(c->dma_channel, 0, OMAP_DMA_AMODE_POST_INC,
 				 dma_dst, 0, 0);
 
-	INIT_COMPLETION(c->dma_done);
+	reinit_completion(&c->dma_done);
 	omap_start_dma(c->dma_channel);
 
 	timeout = jiffies + msecs_to_jiffies(20);
@@ -499,7 +499,7 @@ static int omap2_onenand_read_bufferram(struct mtd_info *mtd, int area,
 	omap_set_dma_dest_params(c->dma_channel, 0, OMAP_DMA_AMODE_POST_INC,
 				 dma_dst, 0, 0);
 
-	INIT_COMPLETION(c->dma_done);
+	reinit_completion(&c->dma_done);
 	omap_start_dma(c->dma_channel);
 	wait_for_completion(&c->dma_done);
 
@@ -544,7 +544,7 @@ static int omap2_onenand_write_bufferram(struct mtd_info *mtd, int area,
 	omap_set_dma_dest_params(c->dma_channel, 0, OMAP_DMA_AMODE_POST_INC,
 				 dma_dst, 0, 0);
 
-	INIT_COMPLETION(c->dma_done);
+	reinit_completion(&c->dma_done);
 	omap_start_dma(c->dma_channel);
 	wait_for_completion(&c->dma_done);
 
diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
index 09810ddd11ec..a01a6a74ee3a 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c
@@ -3537,7 +3537,7 @@ int qlcnic_83xx_resume(struct qlcnic_adapter *adapter)
 
 void qlcnic_83xx_reinit_mbx_work(struct qlcnic_mailbox *mbx)
 {
-	INIT_COMPLETION(mbx->completion);
+	reinit_completion(&mbx->completion);
 	set_bit(QLC_83XX_MBX_READY, &mbx->status);
 }
 
diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c
index 6f10b4964726..2cbe1c249996 100644
--- a/drivers/net/ieee802154/at86rf230.c
+++ b/drivers/net/ieee802154/at86rf230.c
@@ -561,7 +561,7 @@ at86rf230_xmit(struct ieee802154_dev *dev, struct sk_buff *skb)
 
 	spin_lock_irqsave(&lp->lock, flags);
 	lp->is_tx = 1;
-	INIT_COMPLETION(lp->tx_complete);
+	reinit_completion(&lp->tx_complete);
 	spin_unlock_irqrestore(&lp->lock, flags);
 
 	rc = at86rf230_write_fbuf(lp, skb->data, skb->len);
diff --git a/drivers/net/ieee802154/mrf24j40.c b/drivers/net/ieee802154/mrf24j40.c
index 0632d34905c7..c6e46d6e9f75 100644
--- a/drivers/net/ieee802154/mrf24j40.c
+++ b/drivers/net/ieee802154/mrf24j40.c
@@ -343,7 +343,7 @@ static int mrf24j40_tx(struct ieee802154_dev *dev, struct sk_buff *skb)
 	if (ret)
 		goto err;
 
-	INIT_COMPLETION(devrec->tx_complete);
+	reinit_completion(&devrec->tx_complete);
 
 	/* Set TXNTRIG bit of TXNCON to send packet */
 	ret = read_short_reg(devrec, REG_TXNCON, &val);
diff --git a/drivers/net/wireless/ath/ath10k/htc.c b/drivers/net/wireless/ath/ath10k/htc.c
index 3118d7506734..edae50b52806 100644
--- a/drivers/net/wireless/ath/ath10k/htc.c
+++ b/drivers/net/wireless/ath/ath10k/htc.c
@@ -534,7 +534,7 @@ int ath10k_htc_wait_target(struct ath10k_htc *htc)
 	u16 credit_count;
 	u16 credit_size;
 
-	INIT_COMPLETION(htc->ctl_resp);
+	reinit_completion(&htc->ctl_resp);
 
 	status = ath10k_hif_start(htc->ar);
 	if (status) {
@@ -669,7 +669,7 @@ int ath10k_htc_connect_service(struct ath10k_htc *htc,
 	req_msg->flags = __cpu_to_le16(flags);
 	req_msg->service_id = __cpu_to_le16(conn_req->service_id);
 
-	INIT_COMPLETION(htc->ctl_resp);
+	reinit_completion(&htc->ctl_resp);
 
 	status = ath10k_htc_send(htc, ATH10K_HTC_EP_0, skb);
 	if (status) {
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 0b1cc516e778..97ac8c87cba2 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -92,7 +92,7 @@ static int ath10k_install_key(struct ath10k_vif *arvif,
 
 	lockdep_assert_held(&ar->conf_mutex);
 
-	INIT_COMPLETION(ar->install_key_done);
+	reinit_completion(&ar->install_key_done);
 
 	ret = ath10k_send_key(arvif, key, cmd, macaddr);
 	if (ret)
@@ -438,7 +438,7 @@ static int ath10k_vdev_start(struct ath10k_vif *arvif)
 
 	lockdep_assert_held(&ar->conf_mutex);
 
-	INIT_COMPLETION(ar->vdev_setup_done);
+	reinit_completion(&ar->vdev_setup_done);
 
 	arg.vdev_id = arvif->vdev_id;
 	arg.dtim_period = arvif->dtim_period;
@@ -491,7 +491,7 @@ static int ath10k_vdev_stop(struct ath10k_vif *arvif)
 
 	lockdep_assert_held(&ar->conf_mutex);
 
-	INIT_COMPLETION(ar->vdev_setup_done);
+	reinit_completion(&ar->vdev_setup_done);
 
 	ret = ath10k_wmi_vdev_stop(ar, arvif->vdev_id);
 	if (ret) {
@@ -1666,7 +1666,7 @@ void ath10k_offchan_tx_work(struct work_struct *work)
 		}
 
 		spin_lock_bh(&ar->data_lock);
-		INIT_COMPLETION(ar->offchan_tx_completed);
+		reinit_completion(&ar->offchan_tx_completed);
 		ar->offchan_tx_skb = skb;
 		spin_unlock_bh(&ar->data_lock);
 
@@ -2476,8 +2476,8 @@ static int ath10k_hw_scan(struct ieee80211_hw *hw,
 		goto exit;
 	}
 
-	INIT_COMPLETION(ar->scan.started);
-	INIT_COMPLETION(ar->scan.completed);
+	reinit_completion(&ar->scan.started);
+	reinit_completion(&ar->scan.completed);
 	ar->scan.in_progress = true;
 	ar->scan.aborting = false;
 	ar->scan.is_roc = false;
@@ -2832,9 +2832,9 @@ static int ath10k_remain_on_channel(struct ieee80211_hw *hw,
 		goto exit;
 	}
 
-	INIT_COMPLETION(ar->scan.started);
-	INIT_COMPLETION(ar->scan.completed);
-	INIT_COMPLETION(ar->scan.on_channel);
+	reinit_completion(&ar->scan.started);
+	reinit_completion(&ar->scan.completed);
+	reinit_completion(&ar->scan.on_channel);
 	ar->scan.in_progress = true;
 	ar->scan.aborting = false;
 	ar->scan.is_roc = true;
diff --git a/drivers/net/wireless/ath/carl9170/usb.c b/drivers/net/wireless/ath/carl9170/usb.c
index 307bc0ddff99..ca115f33746f 100644
--- a/drivers/net/wireless/ath/carl9170/usb.c
+++ b/drivers/net/wireless/ath/carl9170/usb.c
@@ -773,7 +773,7 @@ void carl9170_usb_stop(struct ar9170 *ar)
 	complete_all(&ar->cmd_wait);
 
 	/* This is required to prevent an early completion on _start */
-	INIT_COMPLETION(ar->cmd_wait);
+	reinit_completion(&ar->cmd_wait);
 
 	/*
 	 * Note:
diff --git a/drivers/net/wireless/ath/wil6210/main.c b/drivers/net/wireless/ath/wil6210/main.c
index 0a2844c48a60..fd30cddd5882 100644
--- a/drivers/net/wireless/ath/wil6210/main.c
+++ b/drivers/net/wireless/ath/wil6210/main.c
@@ -250,7 +250,7 @@ int wil_reset(struct wil6210_priv *wil)
 
 	/* init after reset */
 	wil->pending_connect_cid = -1;
-	INIT_COMPLETION(wil->wmi_ready);
+	reinit_completion(&wil->wmi_ready);
 
 	/* TODO: release MAC reset */
 	wil6210_enable_irq(wil);
diff --git a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
index d7a974532909..5b5b952d47b1 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
@@ -1148,7 +1148,7 @@ static s32 brcmf_p2p_af_searching_channel(struct brcmf_p2p_info *p2p)
 
 	pri_vif = p2p->bss_idx[P2PAPI_BSSCFG_PRIMARY].vif;
 
-	INIT_COMPLETION(afx_hdl->act_frm_scan);
+	reinit_completion(&afx_hdl->act_frm_scan);
 	set_bit(BRCMF_P2P_STATUS_FINDING_COMMON_CHANNEL, &p2p->status);
 	afx_hdl->is_active = true;
 	afx_hdl->peer_chan = P2P_INVALID_CHANNEL;
@@ -1501,7 +1501,7 @@ static s32 brcmf_p2p_tx_action_frame(struct brcmf_p2p_info *p2p,
 
 	brcmf_dbg(TRACE, "Enter\n");
 
-	INIT_COMPLETION(p2p->send_af_done);
+	reinit_completion(&p2p->send_af_done);
 	clear_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED, &p2p->status);
 	clear_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status);
 
diff --git a/drivers/net/wireless/zd1211rw/zd_usb.c b/drivers/net/wireless/zd1211rw/zd_usb.c
index 7ef0b4a181e1..84d94f572a46 100644
--- a/drivers/net/wireless/zd1211rw/zd_usb.c
+++ b/drivers/net/wireless/zd1211rw/zd_usb.c
@@ -1619,7 +1619,7 @@ static void prepare_read_regs_int(struct zd_usb *usb,
 	atomic_set(&intr->read_regs_enabled, 1);
 	intr->read_regs.req = req;
 	intr->read_regs.req_count = count;
-	INIT_COMPLETION(intr->read_regs.completion);
+	reinit_completion(&intr->read_regs.completion);
 	spin_unlock_irq(&intr->lock);
 }
 
diff --git a/drivers/parport/parport_ip32.c b/drivers/parport/parport_ip32.c
index d4716273651e..c864f82bd37d 100644
--- a/drivers/parport/parport_ip32.c
+++ b/drivers/parport/parport_ip32.c
@@ -1331,7 +1331,7 @@ static unsigned int parport_ip32_fwp_wait_interrupt(struct parport *p)
 			break;
 
 		/* Initialize mutex used to take interrupts into account */
-		INIT_COMPLETION(priv->irq_complete);
+		reinit_completion(&priv->irq_complete);
 
 		/* Enable serviceIntr */
 		parport_ip32_frob_econtrol(p, ECR_SERVINTR, 0);
@@ -1446,7 +1446,7 @@ static size_t parport_ip32_fifo_write_block_dma(struct parport *p,
 	priv->irq_mode = PARPORT_IP32_IRQ_HERE;
 
 	parport_ip32_dma_start(DMA_TO_DEVICE, (void *)buf, len);
-	INIT_COMPLETION(priv->irq_complete);
+	reinit_completion(&priv->irq_complete);
 	parport_ip32_frob_econtrol(p, ECR_DMAEN | ECR_SERVINTR, ECR_DMAEN);
 
 	nfault_timeout = min((unsigned long)physport->cad->timeout,
diff --git a/drivers/platform/x86/apple-gmux.c b/drivers/platform/x86/apple-gmux.c
index 8eea2efbbb6d..605a9be55129 100644
--- a/drivers/platform/x86/apple-gmux.c
+++ b/drivers/platform/x86/apple-gmux.c
@@ -289,7 +289,7 @@ static int gmux_switchto(enum vga_switcheroo_client_id id)
 static int gmux_set_discrete_state(struct apple_gmux_data *gmux_data,
 				   enum vga_switcheroo_state state)
 {
-	INIT_COMPLETION(gmux_data->powerchange_done);
+	reinit_completion(&gmux_data->powerchange_done);
 
 	if (state == VGA_SWITCHEROO_ON) {
 		gmux_write8(gmux_data, GMUX_PORT_DISCRETE_POWER, 1);
diff --git a/drivers/power/ab8500_fg.c b/drivers/power/ab8500_fg.c
index 754970717c31..3cb4178e397c 100644
--- a/drivers/power/ab8500_fg.c
+++ b/drivers/power/ab8500_fg.c
@@ -574,8 +574,8 @@ int ab8500_fg_inst_curr_start(struct ab8500_fg *di)
 	}
 
 	/* Return and WFI */
-	INIT_COMPLETION(di->ab8500_fg_started);
-	INIT_COMPLETION(di->ab8500_fg_complete);
+	reinit_completion(&di->ab8500_fg_started);
+	reinit_completion(&di->ab8500_fg_complete);
 	enable_irq(di->irq);
 
 	/* Note: cc_lock is still locked */
diff --git a/drivers/power/jz4740-battery.c b/drivers/power/jz4740-battery.c
index d9686aa9270a..6c8931d4ad62 100644
--- a/drivers/power/jz4740-battery.c
+++ b/drivers/power/jz4740-battery.c
@@ -73,7 +73,7 @@ static long jz_battery_read_voltage(struct jz_battery *battery)
 
 	mutex_lock(&battery->lock);
 
-	INIT_COMPLETION(battery->read_completion);
+	reinit_completion(&battery->read_completion);
 
 	enable_irq(battery->irq);
 	battery->cell->enable(battery->pdev);
diff --git a/drivers/rtc/rtc-hid-sensor-time.c b/drivers/rtc/rtc-hid-sensor-time.c
index a34e5cfd2ab5..965a9da70867 100644
--- a/drivers/rtc/rtc-hid-sensor-time.c
+++ b/drivers/rtc/rtc-hid-sensor-time.c
@@ -209,7 +209,7 @@ static int hid_rtc_read_time(struct device *dev, struct rtc_time *tm)
 		platform_get_drvdata(to_platform_device(dev));
 	int ret;
 
-	INIT_COMPLETION(time_state->comp_last_time);
+	reinit_completion(&time_state->comp_last_time);
 	/* get a report with all values through requesting one value */
 	sensor_hub_input_attr_get_raw_value(time_state->common_attributes.hsdev,
 			HID_USAGE_SENSOR_TIME, hid_time_addresses[0],
diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c
index 4c332143a310..3ed666fe840a 100644
--- a/drivers/spi/spi-bcm2835.c
+++ b/drivers/spi/spi-bcm2835.c
@@ -217,7 +217,7 @@ static int bcm2835_spi_start_transfer(struct spi_device *spi,
 		cs |= spi->chip_select;
 	}
 
-	INIT_COMPLETION(bs->done);
+	reinit_completion(&bs->done);
 	bs->tx_buf = tfr->tx_buf;
 	bs->rx_buf = tfr->rx_buf;
 	bs->len = tfr->len;
diff --git a/drivers/spi/spi-clps711x.c b/drivers/spi/spi-clps711x.c
index e2a5a426b2ef..6f03d7e6435d 100644
--- a/drivers/spi/spi-clps711x.c
+++ b/drivers/spi/spi-clps711x.c
@@ -105,7 +105,7 @@ static int spi_clps711x_transfer_one_message(struct spi_master *master,
 
 		gpio_set_value(cs, !!(msg->spi->mode & SPI_CS_HIGH));
 
-		INIT_COMPLETION(hw->done);
+		reinit_completion(&hw->done);
 
 		hw->count = 0;
 		hw->len = xfer->len;
diff --git a/drivers/spi/spi-davinci.c b/drivers/spi/spi-davinci.c
index dd72445ba2ea..50b2d88c8190 100644
--- a/drivers/spi/spi-davinci.c
+++ b/drivers/spi/spi-davinci.c
@@ -554,7 +554,7 @@ static int davinci_spi_bufs(struct spi_device *spi, struct spi_transfer *t)
 	clear_io_bits(dspi->base + SPIGCR1, SPIGCR1_POWERDOWN_MASK);
 	set_io_bits(dspi->base + SPIGCR1, SPIGCR1_SPIENA_MASK);
 
-	INIT_COMPLETION(dspi->done);
+	reinit_completion(&dspi->done);
 
 	if (spicfg->io_type == SPI_IO_TYPE_INTR)
 		set_io_bits(dspi->base + SPIINT, SPIINT_MASKINT);
diff --git a/drivers/spi/spi-fsl-espi.c b/drivers/spi/spi-fsl-espi.c
index 32200d4f8780..80d8f40f7e05 100644
--- a/drivers/spi/spi-fsl-espi.c
+++ b/drivers/spi/spi-fsl-espi.c
@@ -232,7 +232,7 @@ static int fsl_espi_bufs(struct spi_device *spi, struct spi_transfer *t)
 	mpc8xxx_spi->tx = t->tx_buf;
 	mpc8xxx_spi->rx = t->rx_buf;
 
-	INIT_COMPLETION(mpc8xxx_spi->done);
+	reinit_completion(&mpc8xxx_spi->done);
 
 	/* Set SPCOM[CS] and SPCOM[TRANLEN] field */
 	if ((t->len - 1) > SPCOM_TRANLEN_MAX) {
diff --git a/drivers/spi/spi-fsl-spi.c b/drivers/spi/spi-fsl-spi.c
index 2129fcd1c31b..119f7af94537 100644
--- a/drivers/spi/spi-fsl-spi.c
+++ b/drivers/spi/spi-fsl-spi.c
@@ -339,7 +339,7 @@ static int fsl_spi_bufs(struct spi_device *spi, struct spi_transfer *t,
 	mpc8xxx_spi->tx = t->tx_buf;
 	mpc8xxx_spi->rx = t->rx_buf;
 
-	INIT_COMPLETION(mpc8xxx_spi->done);
+	reinit_completion(&mpc8xxx_spi->done);
 
 	if (mpc8xxx_spi->flags & SPI_CPM_MODE)
 		ret = fsl_spi_cpm_bufs(mpc8xxx_spi, t, is_dma_mapped);
diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c
index 58d5ee0e4443..9602bbd8d7ea 100644
--- a/drivers/spi/spi-mpc512x-psc.c
+++ b/drivers/spi/spi-mpc512x-psc.c
@@ -167,7 +167,7 @@ static int mpc512x_psc_spi_transfer_rxtx(struct spi_device *spi,
 			}
 
 			/* have the ISR trigger when the TX FIFO is empty */
-			INIT_COMPLETION(mps->txisrdone);
+			reinit_completion(&mps->txisrdone);
 			out_be32(&fifo->txisr, MPC512x_PSC_FIFO_EMPTY);
 			out_be32(&fifo->tximr, MPC512x_PSC_FIFO_EMPTY);
 			wait_for_completion(&mps->txisrdone);
diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index de333059a9a7..73afb56c08cc 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -202,7 +202,7 @@ static int mxs_spi_txrx_dma(struct mxs_spi *spi,
 	if (!dma_xfer)
 		return -ENOMEM;
 
-	INIT_COMPLETION(spi->c);
+	reinit_completion(&spi->c);
 
 	/* Chip select was already programmed into CTRL0 */
 	ctrl0 = readl(ssp->base + HW_SSP_CTRL0);
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 9e2020df9e0f..4c4b0a1219a7 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -890,7 +890,7 @@ static int s3c64xx_spi_transfer_one(struct spi_master *master,
 	unsigned long flags;
 	int use_dma;
 
-	INIT_COMPLETION(sdd->xfer_completion);
+		reinit_completion(&sdd->xfer_completion);
 
 	/* Only BPW and Speed may change across transfers */
 	bpw = xfer->bits_per_word;
diff --git a/drivers/spi/spi-sh-msiof.c b/drivers/spi/spi-sh-msiof.c
index 2a95435a6a11..c74298cf70e2 100644
--- a/drivers/spi/spi-sh-msiof.c
+++ b/drivers/spi/spi-sh-msiof.c
@@ -465,7 +465,7 @@ static int sh_msiof_spi_txrx_once(struct sh_msiof_spi_priv *p,
 	ret = ret ? ret : sh_msiof_modify_ctr_wait(p, 0, CTR_TXE);
 
 	/* start by setting frame bit */
-	INIT_COMPLETION(p->done);
+	reinit_completion(&p->done);
 	ret = ret ? ret : sh_msiof_modify_ctr_wait(p, 0, CTR_TFSE);
 	if (ret) {
 		dev_err(&p->pdev->dev, "failed to start hardware\n");
diff --git a/drivers/spi/spi-sirf.c b/drivers/spi/spi-sirf.c
index 592b4aff651f..ed5e501c4652 100644
--- a/drivers/spi/spi-sirf.c
+++ b/drivers/spi/spi-sirf.c
@@ -305,8 +305,8 @@ static int spi_sirfsoc_transfer(struct spi_device *spi, struct spi_transfer *t)
 	sspi->tx = t->tx_buf ? t->tx_buf : sspi->dummypage;
 	sspi->rx = t->rx_buf ? t->rx_buf : sspi->dummypage;
 	sspi->left_tx_word = sspi->left_rx_word = t->len / sspi->word_width;
-	INIT_COMPLETION(sspi->rx_done);
-	INIT_COMPLETION(sspi->tx_done);
+	reinit_completion(&sspi->rx_done);
+	reinit_completion(&sspi->tx_done);
 
 	writel(SIRFSOC_SPI_INT_MASK_ALL, sspi->base + SIRFSOC_SPI_INT_STATUS);
 
diff --git a/drivers/spi/spi-tegra114.c b/drivers/spi/spi-tegra114.c
index 9146bb3c2489..aaecfb3ebf58 100644
--- a/drivers/spi/spi-tegra114.c
+++ b/drivers/spi/spi-tegra114.c
@@ -451,7 +451,7 @@ static void tegra_spi_dma_complete(void *args)
 
 static int tegra_spi_start_tx_dma(struct tegra_spi_data *tspi, int len)
 {
-	INIT_COMPLETION(tspi->tx_dma_complete);
+	reinit_completion(&tspi->tx_dma_complete);
 	tspi->tx_dma_desc = dmaengine_prep_slave_single(tspi->tx_dma_chan,
 				tspi->tx_dma_phys, len, DMA_MEM_TO_DEV,
 				DMA_PREP_INTERRUPT |  DMA_CTRL_ACK);
@@ -470,7 +470,7 @@ static int tegra_spi_start_tx_dma(struct tegra_spi_data *tspi, int len)
 
 static int tegra_spi_start_rx_dma(struct tegra_spi_data *tspi, int len)
 {
-	INIT_COMPLETION(tspi->rx_dma_complete);
+	reinit_completion(&tspi->rx_dma_complete);
 	tspi->rx_dma_desc = dmaengine_prep_slave_single(tspi->rx_dma_chan,
 				tspi->rx_dma_phys, len, DMA_DEV_TO_MEM,
 				DMA_PREP_INTERRUPT |  DMA_CTRL_ACK);
@@ -844,7 +844,7 @@ static int tegra_spi_transfer_one_message(struct spi_master *master,
 	list_for_each_entry(xfer, &msg->transfers, transfer_list) {
 		unsigned long cmd1;
 
-		INIT_COMPLETION(tspi->xfer_completion);
+		reinit_completion(&tspi->xfer_completion);
 
 		cmd1 = tegra_spi_setup_transfer_one(spi, xfer, is_first_msg);
 
diff --git a/drivers/spi/spi-tegra20-sflash.c b/drivers/spi/spi-tegra20-sflash.c
index 79be8ce6a9d1..4dc8e8129459 100644
--- a/drivers/spi/spi-tegra20-sflash.c
+++ b/drivers/spi/spi-tegra20-sflash.c
@@ -339,7 +339,7 @@ static int tegra_sflash_transfer_one_message(struct spi_master *master,
 	msg->actual_length = 0;
 	single_xfer = list_is_singular(&msg->transfers);
 	list_for_each_entry(xfer, &msg->transfers, transfer_list) {
-		INIT_COMPLETION(tsd->xfer_completion);
+		reinit_completion(&tsd->xfer_completion);
 		ret = tegra_sflash_start_transfer_one(spi, xfer,
 					is_first_msg, single_xfer);
 		if (ret < 0) {
diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c
index af0a67886ae8..e66715ba37ed 100644
--- a/drivers/spi/spi-tegra20-slink.c
+++ b/drivers/spi/spi-tegra20-slink.c
@@ -462,7 +462,7 @@ static void tegra_slink_dma_complete(void *args)
 
 static int tegra_slink_start_tx_dma(struct tegra_slink_data *tspi, int len)
 {
-	INIT_COMPLETION(tspi->tx_dma_complete);
+	reinit_completion(&tspi->tx_dma_complete);
 	tspi->tx_dma_desc = dmaengine_prep_slave_single(tspi->tx_dma_chan,
 				tspi->tx_dma_phys, len, DMA_MEM_TO_DEV,
 				DMA_PREP_INTERRUPT |  DMA_CTRL_ACK);
@@ -481,7 +481,7 @@ static int tegra_slink_start_tx_dma(struct tegra_slink_data *tspi, int len)
 
 static int tegra_slink_start_rx_dma(struct tegra_slink_data *tspi, int len)
 {
-	INIT_COMPLETION(tspi->rx_dma_complete);
+	reinit_completion(&tspi->rx_dma_complete);
 	tspi->rx_dma_desc = dmaengine_prep_slave_single(tspi->rx_dma_chan,
 				tspi->rx_dma_phys, len, DMA_DEV_TO_MEM,
 				DMA_PREP_INTERRUPT |  DMA_CTRL_ACK);
@@ -836,7 +836,7 @@ static int tegra_slink_transfer_one(struct spi_master *master,
 	struct tegra_slink_data *tspi = spi_master_get_devdata(master);
 	int ret;
 
-	INIT_COMPLETION(tspi->xfer_completion);
+	reinit_completion(&tspi->xfer_completion);
 	ret = tegra_slink_start_transfer_one(spi, xfer);
 	if (ret < 0) {
 		dev_err(tspi->dev,
diff --git a/drivers/spi/spi-xilinx.c b/drivers/spi/spi-xilinx.c
index ec3a83f52ea2..6d4ce4615163 100644
--- a/drivers/spi/spi-xilinx.c
+++ b/drivers/spi/spi-xilinx.c
@@ -258,7 +258,7 @@ static int xilinx_spi_txrx_bufs(struct spi_device *spi, struct spi_transfer *t)
 	xspi->tx_ptr = t->tx_buf;
 	xspi->rx_ptr = t->rx_buf;
 	xspi->remaining_bytes = t->len;
-	INIT_COMPLETION(xspi->done);
+	reinit_completion(&xspi->done);
 
 
 	/* Enable the transmit empty interrupt, which we use to determine
diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 927998aa5e71..8d85ddc46011 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -571,7 +571,7 @@ static int spi_transfer_one_message(struct spi_master *master,
 	list_for_each_entry(xfer, &msg->transfers, transfer_list) {
 		trace_spi_transfer_start(msg, xfer);
 
-		INIT_COMPLETION(master->xfer_completion);
+		reinit_completion(&master->xfer_completion);
 
 		ret = master->transfer_one(master, msg->spi, xfer);
 		if (ret < 0) {
diff --git a/drivers/staging/iio/adc/mxs-lradc.c b/drivers/staging/iio/adc/mxs-lradc.c
index aeae76b77be5..e2dd7830b320 100644
--- a/drivers/staging/iio/adc/mxs-lradc.c
+++ b/drivers/staging/iio/adc/mxs-lradc.c
@@ -783,7 +783,7 @@ static int mxs_lradc_read_raw(struct iio_dev *iio_dev,
 	if (!ret)
 		return -EBUSY;
 
-	INIT_COMPLETION(lradc->completion);
+	reinit_completion(&lradc->completion);
 
 	/*
 	 * No buffered operation in progress, map the channel and trigger it.
diff --git a/drivers/staging/media/solo6x10/solo6x10-p2m.c b/drivers/staging/media/solo6x10/solo6x10-p2m.c
index 333594189b81..7f2f2472655b 100644
--- a/drivers/staging/media/solo6x10/solo6x10-p2m.c
+++ b/drivers/staging/media/solo6x10/solo6x10-p2m.c
@@ -87,7 +87,7 @@ int solo_p2m_dma_desc(struct solo_dev *solo_dev,
 	if (mutex_lock_interruptible(&p2m_dev->mutex))
 		return -EINTR;
 
-	INIT_COMPLETION(p2m_dev->completion);
+	reinit_completion(&p2m_dev->completion);
 	p2m_dev->error = 0;
 
 	if (desc_cnt > 1 && solo_dev->type != SOLO_DEV_6110 && desc_mode) {
diff --git a/drivers/staging/tidspbridge/core/sync.c b/drivers/staging/tidspbridge/core/sync.c
index 7bb550acaf4a..743ff09d82d2 100644
--- a/drivers/staging/tidspbridge/core/sync.c
+++ b/drivers/staging/tidspbridge/core/sync.c
@@ -72,7 +72,7 @@ int sync_wait_on_multiple_events(struct sync_object **events,
 	spin_lock_bh(&sync_lock);
 	for (i = 0; i < count; i++) {
 		if (completion_done(&events[i]->comp)) {
-			INIT_COMPLETION(events[i]->comp);
+			reinit_completion(&events[i]->comp);
 			*index = i;
 			spin_unlock_bh(&sync_lock);
 			status = 0;
@@ -92,7 +92,7 @@ int sync_wait_on_multiple_events(struct sync_object **events,
 	spin_lock_bh(&sync_lock);
 	for (i = 0; i < count; i++) {
 		if (completion_done(&events[i]->comp)) {
-			INIT_COMPLETION(events[i]->comp);
+			reinit_completion(&events[i]->comp);
 			*index = i;
 			status = 0;
 		}
diff --git a/drivers/staging/tidspbridge/include/dspbridge/sync.h b/drivers/staging/tidspbridge/include/dspbridge/sync.h
index 58a0d5c5543d..fc19b9707087 100644
--- a/drivers/staging/tidspbridge/include/dspbridge/sync.h
+++ b/drivers/staging/tidspbridge/include/dspbridge/sync.h
@@ -59,7 +59,7 @@ static inline void sync_init_event(struct sync_object *event)
 
 static inline void sync_reset_event(struct sync_object *event)
 {
-	INIT_COMPLETION(event->comp);
+	reinit_completion(&event->comp);
 	event->multi_comp = NULL;
 }
 
diff --git a/drivers/staging/tidspbridge/rmgr/drv_interface.c b/drivers/staging/tidspbridge/rmgr/drv_interface.c
index 6d04eb48bfbc..1aa4a3fd0f1b 100644
--- a/drivers/staging/tidspbridge/rmgr/drv_interface.c
+++ b/drivers/staging/tidspbridge/rmgr/drv_interface.c
@@ -332,7 +332,7 @@ static void bridge_recover(struct work_struct *work)
 	struct dev_object *dev;
 	struct cfg_devnode *dev_node;
 	if (atomic_read(&bridge_cref)) {
-		INIT_COMPLETION(bridge_comp);
+		reinit_completion(&bridge_comp);
 		while (!wait_for_completion_timeout(&bridge_comp,
 						msecs_to_jiffies(REC_TIMEOUT)))
 			pr_info("%s:%d handle(s) still opened\n",
@@ -348,7 +348,7 @@ static void bridge_recover(struct work_struct *work)
 
 void bridge_recover_schedule(void)
 {
-	INIT_COMPLETION(bridge_open_comp);
+	reinit_completion(&bridge_open_comp);
 	recover = true;
 	queue_work(bridge_rec_queue, &bridge_recovery_work);
 }
@@ -389,7 +389,7 @@ static int omap3_bridge_startup(struct platform_device *pdev)
 #ifdef CONFIG_TIDSPBRIDGE_RECOVERY
 	bridge_rec_queue = create_workqueue("bridge_rec_queue");
 	INIT_WORK(&bridge_recovery_work, bridge_recover);
-	INIT_COMPLETION(bridge_comp);
+	reinit_completion(&bridge_comp);
 #endif
 
 #ifdef CONFIG_PM
diff --git a/drivers/tty/metag_da.c b/drivers/tty/metag_da.c
index 0e888621f484..7332e2ca4615 100644
--- a/drivers/tty/metag_da.c
+++ b/drivers/tty/metag_da.c
@@ -495,7 +495,7 @@ static int dashtty_write(struct tty_struct *tty, const unsigned char *buf,
 	count = dport->xmit_cnt;
 	/* xmit buffer no longer empty? */
 	if (count)
-		INIT_COMPLETION(dport->xmit_empty);
+		reinit_completion(&dport->xmit_empty);
 	mutex_unlock(&dport->xmit_lock);
 
 	if (total) {
diff --git a/drivers/usb/c67x00/c67x00-sched.c b/drivers/usb/c67x00/c67x00-sched.c
index aa491627a45b..892cc96466eb 100644
--- a/drivers/usb/c67x00/c67x00-sched.c
+++ b/drivers/usb/c67x00/c67x00-sched.c
@@ -344,7 +344,7 @@ void c67x00_endpoint_disable(struct usb_hcd *hcd, struct usb_host_endpoint *ep)
 		/* it could happen that we reinitialize this completion, while
 		 * somebody was waiting for that completion.  The timeout and
 		 * while loop handle such cases, but this might be improved */
-		INIT_COMPLETION(c67x00->endpoint_disable);
+		reinit_completion(&c67x00->endpoint_disable);
 		c67x00_sched_kick(c67x00);
 		wait_for_completion_timeout(&c67x00->endpoint_disable, 1 * HZ);
 
diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c
index 44cf775a8627..774e8b89cdb5 100644
--- a/drivers/usb/gadget/f_fs.c
+++ b/drivers/usb/gadget/f_fs.c
@@ -373,7 +373,7 @@ static int __ffs_ep0_queue_wait(struct ffs_data *ffs, char *data, size_t len)
 	if (req->buf == NULL)
 		req->buf = (void *)0xDEADBABE;
 
-	INIT_COMPLETION(ffs->ep0req_completion);
+	reinit_completion(&ffs->ep0req_completion);
 
 	ret = usb_ep_queue(ffs->gadget->ep0, req, GFP_ATOMIC);
 	if (unlikely(ret < 0))
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 84657e07dc5d..439c951f261b 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -455,7 +455,7 @@ static int parport_prologue(struct parport *pp)
 		return -1;
 	}
 	mos_parport->msg_pending = true;   /* synch usb call pending */
-	INIT_COMPLETION(mos_parport->syncmsg_compl);
+	reinit_completion(&mos_parport->syncmsg_compl);
 	spin_unlock(&release_lock);
 
 	mutex_lock(&mos_parport->serial->disc_mutex);
diff --git a/drivers/video/exynos/exynos_mipi_dsi_common.c b/drivers/video/exynos/exynos_mipi_dsi_common.c
index 7eed957b6014..85edabfdef5a 100644
--- a/drivers/video/exynos/exynos_mipi_dsi_common.c
+++ b/drivers/video/exynos/exynos_mipi_dsi_common.c
@@ -220,7 +220,7 @@ int exynos_mipi_dsi_wr_data(struct mipi_dsim_device *dsim, unsigned int data_id,
 	case MIPI_DSI_DCS_LONG_WRITE:
 	{
 		unsigned int size, payload = 0;
-		INIT_COMPLETION(dsim_wr_comp);
+		reinit_completion(&dsim_wr_comp);
 
 		size = data_size * 4;
 
@@ -356,7 +356,7 @@ int exynos_mipi_dsi_rd_data(struct mipi_dsim_device *dsim, unsigned int data_id,
 	msleep(20);
 
 	mutex_lock(&dsim->lock);
-	INIT_COMPLETION(dsim_rd_comp);
+	reinit_completion(&dsim_rd_comp);
 	exynos_mipi_dsi_rd_tx_header(dsim,
 		MIPI_DSI_SET_MAXIMUM_RETURN_PACKET_SIZE, req_size);
 
diff --git a/drivers/video/omap2/displays-new/encoder-tpd12s015.c b/drivers/video/omap2/displays-new/encoder-tpd12s015.c
index 798ef200b055..d5c936cb217f 100644
--- a/drivers/video/omap2/displays-new/encoder-tpd12s015.c
+++ b/drivers/video/omap2/displays-new/encoder-tpd12s015.c
@@ -69,7 +69,7 @@ static int tpd_connect(struct omap_dss_device *dssdev,
 	dst->src = dssdev;
 	dssdev->dst = dst;
 
-	INIT_COMPLETION(ddata->hpd_completion);
+	reinit_completion(&ddata->hpd_completion);
 
 	gpio_set_value_cansleep(ddata->ct_cp_hpd_gpio, 1);
 	/* DC-DC converter needs at max 300us to get to 90% of 5V */
diff --git a/fs/ecryptfs/crypto.c b/fs/ecryptfs/crypto.c
index 000eae2782b6..2f6735dbf1a9 100644
--- a/fs/ecryptfs/crypto.c
+++ b/fs/ecryptfs/crypto.c
@@ -392,7 +392,7 @@ static int crypt_scatterlist(struct ecryptfs_crypt_stat *crypt_stat,
 
 		wait_for_completion(&ecr->completion);
 		rc = ecr->rc;
-		INIT_COMPLETION(ecr->completion);
+		reinit_completion(&ecr->completion);
 	}
 out:
 	ablkcipher_request_free(req);
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index c8e729deb4f7..74a7e12e10df 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -244,7 +244,7 @@ static int nfs4_drain_slot_tbl(struct nfs4_slot_table *tbl)
 	set_bit(NFS4_SLOT_TBL_DRAINING, &tbl->slot_tbl_state);
 	spin_lock(&tbl->slot_tbl_lock);
 	if (tbl->highest_used_slotid != NFS4_NO_SLOT) {
-		INIT_COMPLETION(tbl->complete);
+		reinit_completion(&tbl->complete);
 		spin_unlock(&tbl->slot_tbl_lock);
 		return wait_for_completion_interruptible(&tbl->complete);
 	}
diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c
index 3a44a648dae7..3407b2c62b21 100644
--- a/fs/ocfs2/dlmglue.c
+++ b/fs/ocfs2/dlmglue.c
@@ -1304,7 +1304,7 @@ static int ocfs2_wait_for_mask(struct ocfs2_mask_waiter *mw)
 {
 	wait_for_completion(&mw->mw_complete);
 	/* Re-arm the completion in case we want to wait on it again */
-	INIT_COMPLETION(mw->mw_complete);
+	reinit_completion(&mw->mw_complete);
 	return mw->mw_status;
 }
 
@@ -1355,7 +1355,7 @@ static int ocfs2_wait_for_mask_interruptible(struct ocfs2_mask_waiter *mw,
 	else
 		ret = mw->mw_status;
 	/* Re-arm the completion in case we want to wait on it again */
-	INIT_COMPLETION(mw->mw_complete);
+	reinit_completion(&mw->mw_complete);
 	return ret;
 }
 
diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 6feee6614193..57bcd31fcc12 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -543,7 +543,7 @@ static int dice_change_rate(struct dice *dice, unsigned int clock_rate)
 	__be32 value;
 	int err;
 
-	INIT_COMPLETION(dice->clock_accepted);
+	reinit_completion(&dice->clock_accepted);
 
 	value = cpu_to_be32(clock_rate | CLOCK_SOURCE_ARX1);
 	err = snd_fw_transaction(dice->unit, TCODE_WRITE_QUADLET_REQUEST,
diff --git a/sound/soc/samsung/ac97.c b/sound/soc/samsung/ac97.c
index 2acf987844e8..350ba23a9893 100644
--- a/sound/soc/samsung/ac97.c
+++ b/sound/soc/samsung/ac97.c
@@ -74,7 +74,7 @@ static void s3c_ac97_activate(struct snd_ac97 *ac97)
 	if (stat == S3C_AC97_GLBSTAT_MAINSTATE_ACTIVE)
 		return; /* Return if already active */
 
-	INIT_COMPLETION(s3c_ac97.done);
+	reinit_completion(&s3c_ac97.done);
 
 	ac_glbctrl = readl(s3c_ac97.regs + S3C_AC97_GLBCTRL);
 	ac_glbctrl = S3C_AC97_GLBCTRL_ACLINKON;
@@ -103,7 +103,7 @@ static unsigned short s3c_ac97_read(struct snd_ac97 *ac97,
 
 	s3c_ac97_activate(ac97);
 
-	INIT_COMPLETION(s3c_ac97.done);
+	reinit_completion(&s3c_ac97.done);
 
 	ac_codec_cmd = readl(s3c_ac97.regs + S3C_AC97_CODEC_CMD);
 	ac_codec_cmd = S3C_AC97_CODEC_CMD_READ | AC_CMD_ADDR(reg);
@@ -140,7 +140,7 @@ static void s3c_ac97_write(struct snd_ac97 *ac97, unsigned short reg,
 
 	s3c_ac97_activate(ac97);
 
-	INIT_COMPLETION(s3c_ac97.done);
+	reinit_completion(&s3c_ac97.done);
 
 	ac_codec_cmd = readl(s3c_ac97.regs + S3C_AC97_CODEC_CMD);
 	ac_codec_cmd = AC_CMD_ADDR(reg) | AC_CMD_DATA(val);
-- 
cgit 


From 62026aedaacedbe1ffe94a3599ad4acd8ecdf587 Mon Sep 17 00:00:00 2001
From: Wolfram Sang <wsa@the-dreams.de>
Date: Thu, 14 Nov 2013 14:32:03 -0800
Subject: sched: remove INIT_COMPLETION

All users are converted over to reinit_completion(). Remove the old
macro now.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/completion.h | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/include/linux/completion.h b/include/linux/completion.h
index 124e4b4334c1..5d5aaae3af43 100644
--- a/include/linux/completion.h
+++ b/include/linux/completion.h
@@ -106,14 +106,4 @@ extern bool completion_done(struct completion *x);
 extern void complete(struct completion *);
 extern void complete_all(struct completion *);
 
-/**
- * INIT_COMPLETION - reinitialize a completion structure
- * @x:  completion structure to be reinitialized
- *
- * This macro should be used to reinitialize a completion structure so it can
- * be reused. This is especially important after complete_all() is used.
- */
-#define INIT_COMPLETION(x)	((x).done = 0)
-
-
 #endif
-- 
cgit 


From c853b167e6ec1f25023cfc58ba2f43f9f6f5b49b Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 14 Nov 2013 14:32:04 -0800
Subject: drivers/w1/masters/w1-gpio.c: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.  This is a cosmetic change to make
the code simpler and enhance the readability.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/w1/masters/w1-gpio.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/w1/masters/w1-gpio.c b/drivers/w1/masters/w1-gpio.c
index 264ad1c583ab..e36b18b2817b 100644
--- a/drivers/w1/masters/w1-gpio.c
+++ b/drivers/w1/masters/w1-gpio.c
@@ -56,7 +56,7 @@ MODULE_DEVICE_TABLE(of, w1_gpio_dt_ids);
 
 static int w1_gpio_probe_dt(struct platform_device *pdev)
 {
-	struct w1_gpio_platform_data *pdata = pdev->dev.platform_data;
+	struct w1_gpio_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct device_node *np = pdev->dev.of_node;
 	int gpio;
 
@@ -92,7 +92,7 @@ static int w1_gpio_probe(struct platform_device *pdev)
 		}
 	}
 
-	pdata = pdev->dev.platform_data;
+	pdata = dev_get_platdata(&pdev->dev);
 
 	if (!pdata) {
 		dev_err(&pdev->dev, "No configuration data\n");
@@ -154,7 +154,7 @@ static int w1_gpio_probe(struct platform_device *pdev)
 static int w1_gpio_remove(struct platform_device *pdev)
 {
 	struct w1_bus_master *master = platform_get_drvdata(pdev);
-	struct w1_gpio_platform_data *pdata = pdev->dev.platform_data;
+	struct w1_gpio_platform_data *pdata = dev_get_platdata(&pdev->dev);
 
 	if (pdata->enable_external_pullup)
 		pdata->enable_external_pullup(0);
@@ -171,7 +171,7 @@ static int w1_gpio_remove(struct platform_device *pdev)
 
 static int w1_gpio_suspend(struct platform_device *pdev, pm_message_t state)
 {
-	struct w1_gpio_platform_data *pdata = pdev->dev.platform_data;
+	struct w1_gpio_platform_data *pdata = dev_get_platdata(&pdev->dev);
 
 	if (pdata->enable_external_pullup)
 		pdata->enable_external_pullup(0);
@@ -181,7 +181,7 @@ static int w1_gpio_suspend(struct platform_device *pdev, pm_message_t state)
 
 static int w1_gpio_resume(struct platform_device *pdev)
 {
-	struct w1_gpio_platform_data *pdata = pdev->dev.platform_data;
+	struct w1_gpio_platform_data *pdata = dev_get_platdata(&pdev->dev);
 
 	if (pdata->enable_external_pullup)
 		pdata->enable_external_pullup(1);
-- 
cgit 


From fc21c0cff2f425891b28ff6fb6b03b325c977428 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Thu, 14 Nov 2013 14:32:06 -0800
Subject: revert "softirq: Add support for triggering softirq work on softirqs"

This commit was incomplete in that code to remove items from the per-cpu
lists was missing and never acquired a user in the 5 years it has been in
the tree.  We're going to implement what it seems to try to archive in a
simpler way, and this code is in the way of doing so.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/interrupt.h |  22 --------
 kernel/softirq.c          | 131 ----------------------------------------------
 2 files changed, 153 deletions(-)

diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index c9e831dc80bc..db43b58a3355 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -11,8 +11,6 @@
 #include <linux/irqnr.h>
 #include <linux/hardirq.h>
 #include <linux/irqflags.h>
-#include <linux/smp.h>
-#include <linux/percpu.h>
 #include <linux/hrtimer.h>
 #include <linux/kref.h>
 #include <linux/workqueue.h>
@@ -392,15 +390,6 @@ extern void __raise_softirq_irqoff(unsigned int nr);
 extern void raise_softirq_irqoff(unsigned int nr);
 extern void raise_softirq(unsigned int nr);
 
-/* This is the worklist that queues up per-cpu softirq work.
- *
- * send_remote_sendirq() adds work to these lists, and
- * the softirq handler itself dequeues from them.  The queues
- * are protected by disabling local cpu interrupts and they must
- * only be accessed by the local cpu that they are for.
- */
-DECLARE_PER_CPU(struct list_head [NR_SOFTIRQS], softirq_work_list);
-
 DECLARE_PER_CPU(struct task_struct *, ksoftirqd);
 
 static inline struct task_struct *this_cpu_ksoftirqd(void)
@@ -408,17 +397,6 @@ static inline struct task_struct *this_cpu_ksoftirqd(void)
 	return this_cpu_read(ksoftirqd);
 }
 
-/* Try to send a softirq to a remote cpu.  If this cannot be done, the
- * work will be queued to the local cpu.
- */
-extern void send_remote_softirq(struct call_single_data *cp, int cpu, int softirq);
-
-/* Like send_remote_softirq(), but the caller must disable local cpu interrupts
- * and compute the current cpu, passed in as 'this_cpu'.
- */
-extern void __send_remote_softirq(struct call_single_data *cp, int cpu,
-				  int this_cpu, int softirq);
-
 /* Tasklets --- multithreaded analogue of BHs.
 
    Main feature differing them of generic softirqs: tasklet
diff --git a/kernel/softirq.c b/kernel/softirq.c
index b24988353458..11025ccc06dd 100644
--- a/kernel/softirq.c
+++ b/kernel/softirq.c
@@ -6,8 +6,6 @@
  *	Distribute under GPLv2.
  *
  *	Rewritten. Old one was good in 2.2, but in 2.3 it was immoral. --ANK (990903)
- *
- *	Remote softirq infrastructure is by Jens Axboe.
  */
 
 #include <linux/export.h>
@@ -627,146 +625,17 @@ void tasklet_hrtimer_init(struct tasklet_hrtimer *ttimer,
 }
 EXPORT_SYMBOL_GPL(tasklet_hrtimer_init);
 
-/*
- * Remote softirq bits
- */
-
-DEFINE_PER_CPU(struct list_head [NR_SOFTIRQS], softirq_work_list);
-EXPORT_PER_CPU_SYMBOL(softirq_work_list);
-
-static void __local_trigger(struct call_single_data *cp, int softirq)
-{
-	struct list_head *head = &__get_cpu_var(softirq_work_list[softirq]);
-
-	list_add_tail(&cp->list, head);
-
-	/* Trigger the softirq only if the list was previously empty.  */
-	if (head->next == &cp->list)
-		raise_softirq_irqoff(softirq);
-}
-
-#ifdef CONFIG_USE_GENERIC_SMP_HELPERS
-static void remote_softirq_receive(void *data)
-{
-	struct call_single_data *cp = data;
-	unsigned long flags;
-	int softirq;
-
-	softirq = *(int *)cp->info;
-	local_irq_save(flags);
-	__local_trigger(cp, softirq);
-	local_irq_restore(flags);
-}
-
-static int __try_remote_softirq(struct call_single_data *cp, int cpu, int softirq)
-{
-	if (cpu_online(cpu)) {
-		cp->func = remote_softirq_receive;
-		cp->info = &softirq;
-		cp->flags = 0;
-
-		__smp_call_function_single(cpu, cp, 0);
-		return 0;
-	}
-	return 1;
-}
-#else /* CONFIG_USE_GENERIC_SMP_HELPERS */
-static int __try_remote_softirq(struct call_single_data *cp, int cpu, int softirq)
-{
-	return 1;
-}
-#endif
-
-/**
- * __send_remote_softirq - try to schedule softirq work on a remote cpu
- * @cp: private SMP call function data area
- * @cpu: the remote cpu
- * @this_cpu: the currently executing cpu
- * @softirq: the softirq for the work
- *
- * Attempt to schedule softirq work on a remote cpu.  If this cannot be
- * done, the work is instead queued up on the local cpu.
- *
- * Interrupts must be disabled.
- */
-void __send_remote_softirq(struct call_single_data *cp, int cpu, int this_cpu, int softirq)
-{
-	if (cpu == this_cpu || __try_remote_softirq(cp, cpu, softirq))
-		__local_trigger(cp, softirq);
-}
-EXPORT_SYMBOL(__send_remote_softirq);
-
-/**
- * send_remote_softirq - try to schedule softirq work on a remote cpu
- * @cp: private SMP call function data area
- * @cpu: the remote cpu
- * @softirq: the softirq for the work
- *
- * Like __send_remote_softirq except that disabling interrupts and
- * computing the current cpu is done for the caller.
- */
-void send_remote_softirq(struct call_single_data *cp, int cpu, int softirq)
-{
-	unsigned long flags;
-	int this_cpu;
-
-	local_irq_save(flags);
-	this_cpu = smp_processor_id();
-	__send_remote_softirq(cp, cpu, this_cpu, softirq);
-	local_irq_restore(flags);
-}
-EXPORT_SYMBOL(send_remote_softirq);
-
-static int remote_softirq_cpu_notify(struct notifier_block *self,
-					       unsigned long action, void *hcpu)
-{
-	/*
-	 * If a CPU goes away, splice its entries to the current CPU
-	 * and trigger a run of the softirq
-	 */
-	if (action == CPU_DEAD || action == CPU_DEAD_FROZEN) {
-		int cpu = (unsigned long) hcpu;
-		int i;
-
-		local_irq_disable();
-		for (i = 0; i < NR_SOFTIRQS; i++) {
-			struct list_head *head = &per_cpu(softirq_work_list[i], cpu);
-			struct list_head *local_head;
-
-			if (list_empty(head))
-				continue;
-
-			local_head = &__get_cpu_var(softirq_work_list[i]);
-			list_splice_init(head, local_head);
-			raise_softirq_irqoff(i);
-		}
-		local_irq_enable();
-	}
-
-	return NOTIFY_OK;
-}
-
-static struct notifier_block remote_softirq_cpu_notifier = {
-	.notifier_call	= remote_softirq_cpu_notify,
-};
-
 void __init softirq_init(void)
 {
 	int cpu;
 
 	for_each_possible_cpu(cpu) {
-		int i;
-
 		per_cpu(tasklet_vec, cpu).tail =
 			&per_cpu(tasklet_vec, cpu).head;
 		per_cpu(tasklet_hi_vec, cpu).tail =
 			&per_cpu(tasklet_hi_vec, cpu).head;
-		for (i = 0; i < NR_SOFTIRQS; i++)
-			INIT_LIST_HEAD(&per_cpu(softirq_work_list[i], cpu));
 	}
 
-	register_hotcpu_notifier(&remote_softirq_cpu_notifier);
-
 	open_softirq(TASKLET_SOFTIRQ, tasklet_action);
 	open_softirq(HI_SOFTIRQ, tasklet_hi_action);
 }
-- 
cgit 


From 0a06ff068f1255bcd7965ab07bc0f4adc3eb639a Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Thu, 14 Nov 2013 14:32:07 -0800
Subject: kernel: remove CONFIG_USE_GENERIC_SMP_HELPERS

We've switched over every architecture that supports SMP to it, so
remove the new useless config variable.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/Kconfig          | 3 ---
 arch/alpha/Kconfig    | 1 -
 arch/arc/Kconfig      | 1 -
 arch/arm/Kconfig      | 1 -
 arch/arm64/Kconfig    | 1 -
 arch/blackfin/Kconfig | 1 -
 arch/hexagon/Kconfig  | 1 -
 arch/ia64/Kconfig     | 1 -
 arch/m32r/Kconfig     | 1 -
 arch/metag/Kconfig    | 1 -
 arch/mips/Kconfig     | 1 -
 arch/mn10300/Kconfig  | 1 -
 arch/parisc/Kconfig   | 1 -
 arch/powerpc/Kconfig  | 1 -
 arch/s390/Kconfig     | 1 -
 arch/sh/Kconfig       | 1 -
 arch/sparc/Kconfig    | 1 -
 arch/tile/Kconfig     | 1 -
 arch/x86/Kconfig      | 1 -
 block/blk-mq.c        | 4 ++--
 block/blk-softirq.c   | 4 ++--
 block/blk-sysfs.c     | 2 +-
 include/linux/smp.h   | 4 ----
 kernel/Kconfig.hz     | 2 +-
 kernel/smp.c          | 2 --
 25 files changed, 6 insertions(+), 33 deletions(-)

diff --git a/arch/Kconfig b/arch/Kconfig
index ded747c7b74c..f1cf895c040f 100644
--- a/arch/Kconfig
+++ b/arch/Kconfig
@@ -207,9 +207,6 @@ config HAVE_DMA_ATTRS
 config HAVE_DMA_CONTIGUOUS
 	bool
 
-config USE_GENERIC_SMP_HELPERS
-	bool
-
 config GENERIC_SMP_IDLE_THREAD
        bool
 
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 35a300d4a9fb..8d2a4833acda 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -522,7 +522,6 @@ config ARCH_MAY_HAVE_PC_FDC
 config SMP
 	bool "Symmetric multi-processing support"
 	depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
-	select USE_GENERIC_SMP_HELPERS
 	---help---
 	  This enables support for systems with more than one CPU. If you have
 	  a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
index 5ede5460c806..2ee0c9bfd032 100644
--- a/arch/arc/Kconfig
+++ b/arch/arc/Kconfig
@@ -125,7 +125,6 @@ config ARC_PLAT_NEEDS_CPU_TO_DMA
 config SMP
 	bool "Symmetric Multi-Processing (Incomplete)"
 	default n
-	select USE_GENERIC_SMP_HELPERS
 	help
 	  This enables support for systems with more than one CPU. If you have
 	  a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 603d661b445d..00c1ff45a158 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1432,7 +1432,6 @@ config SMP
 	depends on GENERIC_CLOCKEVENTS
 	depends on HAVE_SMP
 	depends on MMU || ARM_MPU
-	select USE_GENERIC_SMP_HELPERS
 	help
 	  This enables support for systems with more than one CPU. If you have
 	  a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index bb0bf1bfc05d..9714fe0403b7 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -143,7 +143,6 @@ config CPU_BIG_ENDIAN
 
 config SMP
 	bool "Symmetric Multi-Processing"
-	select USE_GENERIC_SMP_HELPERS
 	help
 	  This enables support for systems with more than one CPU.  If
 	  you say N here, the kernel will run on single and
diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index e887b57c3176..9ceccef9c649 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -34,7 +34,6 @@ config BLACKFIN
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select GENERIC_ATOMIC64
 	select GENERIC_IRQ_PROBE
-	select USE_GENERIC_SMP_HELPERS if SMP
 	select HAVE_NMI_WATCHDOG if NMI_WATCHDOG
 	select GENERIC_SMP_IDLE_THREAD
 	select ARCH_USES_GETTIMEOFFSET if !GENERIC_CLOCKEVENTS
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 99041b07e610..09df2608f40a 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -4,7 +4,6 @@ comment "Linux Kernel Configuration for Hexagon"
 config HEXAGON
 	def_bool y
 	select HAVE_OPROFILE
-	select USE_GENERIC_SMP_HELPERS if SMP
 	# Other pending projects/to-do items.
 	# select HAVE_REGS_AND_STACK_ACCESS_API
 	# select HAVE_HW_BREAKPOINT if PERF_EVENTS
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 7740ab10a171..dfe85e92ca2e 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -343,7 +343,6 @@ config FORCE_MAX_ZONEORDER
 
 config SMP
 	bool "Symmetric multi-processing support"
-	select USE_GENERIC_SMP_HELPERS
 	help
 	  This enables support for systems with more than one CPU. If you have
 	  a system with only one CPU, say N.  If you have a system with more
diff --git a/arch/m32r/Kconfig b/arch/m32r/Kconfig
index 75661fbf4529..09ef94a8a7c3 100644
--- a/arch/m32r/Kconfig
+++ b/arch/m32r/Kconfig
@@ -275,7 +275,6 @@ source "kernel/Kconfig.preempt"
 
 config SMP
 	bool "Symmetric multi-processing support"
-	select USE_GENERIC_SMP_HELPERS
 	---help---
 	  This enables support for systems with more than one CPU. If you have
 	  a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/metag/Kconfig b/arch/metag/Kconfig
index 36368eb07e13..e56abd2c1b4f 100644
--- a/arch/metag/Kconfig
+++ b/arch/metag/Kconfig
@@ -111,7 +111,6 @@ config METAG_META21
 config SMP
 	bool "Symmetric multi-processing support"
 	depends on METAG_META21 && METAG_META21_MMU
-	select USE_GENERIC_SMP_HELPERS
 	help
 	  This enables support for systems with more than one thread running
 	  Linux. If you have a system with only one thread running Linux,
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 17cc7ff8458c..867d7db11581 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -2125,7 +2125,6 @@ source "mm/Kconfig"
 config SMP
 	bool "Multi-Processing support"
 	depends on SYS_SUPPORTS_SMP
-	select USE_GENERIC_SMP_HELPERS
 	help
 	  This enables support for systems with more than one CPU. If you have
 	  a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index 6aaa1607001a..8bde9237d13b 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -181,7 +181,6 @@ endmenu
 config SMP
 	bool "Symmetric multi-processing support"
 	default y
-	select USE_GENERIC_SMP_HELPERS
 	depends on MN10300_PROC_MN2WS0038 || MN10300_PROC_MN2WS0050
 	---help---
 	  This enables support for systems with more than one CPU. If you have
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 7dcde539d61e..c03567a9a915 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -226,7 +226,6 @@ endchoice
 
 config SMP
 	bool "Symmetric multi-processing support"
-	select USE_GENERIC_SMP_HELPERS
 	---help---
 	  This enables support for systems with more than one CPU. If you have
 	  a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 2f898d63eb96..4740b0a15fa8 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -106,7 +106,6 @@ config PPC
 	select HAVE_MEMBLOCK_NODE_MAP
 	select HAVE_DMA_ATTRS
 	select HAVE_DMA_API_DEBUG
-	select USE_GENERIC_SMP_HELPERS if SMP
 	select HAVE_OPROFILE
 	select HAVE_DEBUG_KMEMLEAK
 	select GENERIC_ATOMIC64 if PPC32
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index f75d7e517927..314fced4fc14 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -141,7 +141,6 @@ config S390
 	select OLD_SIGACTION
 	select OLD_SIGSUSPEND3
 	select SYSCTL_EXCEPTION_TRACE
-	select USE_GENERIC_SMP_HELPERS if SMP
 	select VIRT_CPU_ACCOUNTING
 	select VIRT_TO_BUS
 
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 224f4bc9925e..e78561bc30ef 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -711,7 +711,6 @@ config CC_STACKPROTECTOR
 config SMP
 	bool "Symmetric multi-processing support"
 	depends on SYS_SUPPORTS_SMP
-	select USE_GENERIC_SMP_HELPERS
 	---help---
 	  This enables support for systems with more than one CPU. If you have
 	  a system with only one CPU, like most personal computers, say N. If
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 78c4fdb91bc5..8591b201d9cc 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -28,7 +28,6 @@ config SPARC
 	select HAVE_ARCH_JUMP_LABEL
 	select GENERIC_IRQ_SHOW
 	select ARCH_WANT_IPC_PARSE_VERSION
-	select USE_GENERIC_SMP_HELPERS if SMP
 	select GENERIC_PCI_IOMAP
 	select HAVE_NMI_WATCHDOG if SPARC64
 	select HAVE_BPF_JIT
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index d45a2c48f185..b3692ce78f90 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -8,7 +8,6 @@ config TILE
 	select HAVE_KVM if !TILEGX
 	select GENERIC_FIND_FIRST_BIT
 	select SYSCTL_EXCEPTION_TRACE
-	select USE_GENERIC_SMP_HELPERS
 	select CC_OPTIMIZE_FOR_SIZE
 	select HAVE_DEBUG_KMEMLEAK
 	select GENERIC_IRQ_PROBE
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index af5513e5798a..83f521aa103f 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -90,7 +90,6 @@ config X86
 	select GENERIC_IRQ_SHOW
 	select GENERIC_CLOCKEVENTS_MIN_ADJUST
 	select IRQ_FORCED_THREADING
-	select USE_GENERIC_SMP_HELPERS if SMP
 	select HAVE_BPF_JIT if X86_64
 	select HAVE_ARCH_TRANSPARENT_HUGEPAGE
 	select CLKEVT_I8253
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 88d4e864d4c0..c661896e2465 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -319,7 +319,7 @@ void __blk_mq_end_io(struct request *rq, int error)
 		blk_mq_complete_request(rq, error);
 }
 
-#if defined(CONFIG_SMP) && defined(CONFIG_USE_GENERIC_SMP_HELPERS)
+#if defined(CONFIG_SMP)
 
 /*
  * Called with interrupts disabled.
@@ -361,7 +361,7 @@ static int ipi_remote_cpu(struct blk_mq_ctx *ctx, const int cpu,
 
 	return true;
 }
-#else /* CONFIG_SMP && CONFIG_USE_GENERIC_SMP_HELPERS */
+#else /* CONFIG_SMP */
 static int ipi_remote_cpu(struct blk_mq_ctx *ctx, const int cpu,
 			  struct request *rq, const int error)
 {
diff --git a/block/blk-softirq.c b/block/blk-softirq.c
index ce4b8bfd3d27..57790c1a97eb 100644
--- a/block/blk-softirq.c
+++ b/block/blk-softirq.c
@@ -36,7 +36,7 @@ static void blk_done_softirq(struct softirq_action *h)
 	}
 }
 
-#if defined(CONFIG_SMP) && defined(CONFIG_USE_GENERIC_SMP_HELPERS)
+#ifdef CONFIG_SMP
 static void trigger_softirq(void *data)
 {
 	struct request *rq = data;
@@ -71,7 +71,7 @@ static int raise_blk_irq(int cpu, struct request *rq)
 
 	return 1;
 }
-#else /* CONFIG_SMP && CONFIG_USE_GENERIC_SMP_HELPERS */
+#else /* CONFIG_SMP */
 static int raise_blk_irq(int cpu, struct request *rq)
 {
 	return 1;
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index 4f8c4d90ec73..97779522472f 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -288,7 +288,7 @@ static ssize_t
 queue_rq_affinity_store(struct request_queue *q, const char *page, size_t count)
 {
 	ssize_t ret = -EINVAL;
-#if defined(CONFIG_USE_GENERIC_SMP_HELPERS)
+#ifdef CONFIG_SMP
 	unsigned long val;
 
 	ret = queue_var_store(&val, page, count);
diff --git a/include/linux/smp.h b/include/linux/smp.h
index 731f5237d5f4..78851513030d 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -106,14 +106,10 @@ void kick_all_cpus_sync(void);
 /*
  * Generic and arch helpers
  */
-#ifdef CONFIG_USE_GENERIC_SMP_HELPERS
 void __init call_function_init(void);
 void generic_smp_call_function_single_interrupt(void);
 #define generic_smp_call_function_interrupt \
 	generic_smp_call_function_single_interrupt
-#else
-static inline void call_function_init(void) { }
-#endif
 
 /*
  * Mark the boot cpu "online" so that it can call console drivers in
diff --git a/kernel/Kconfig.hz b/kernel/Kconfig.hz
index 94fabd534b03..2a202a846757 100644
--- a/kernel/Kconfig.hz
+++ b/kernel/Kconfig.hz
@@ -55,4 +55,4 @@ config HZ
 	default 1000 if HZ_1000
 
 config SCHED_HRTICK
-	def_bool HIGH_RES_TIMERS && (!SMP || USE_GENERIC_SMP_HELPERS)
+	def_bool HIGH_RES_TIMERS
diff --git a/kernel/smp.c b/kernel/smp.c
index 46116100f0ee..1c194e20e943 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -15,7 +15,6 @@
 
 #include "smpboot.h"
 
-#ifdef CONFIG_USE_GENERIC_SMP_HELPERS
 enum {
 	CSD_FLAG_LOCK		= 0x01,
 	CSD_FLAG_WAIT		= 0x02,
@@ -464,7 +463,6 @@ int smp_call_function(smp_call_func_t func, void *info, int wait)
 	return 0;
 }
 EXPORT_SYMBOL(smp_call_function);
-#endif /* USE_GENERIC_SMP_HELPERS */
 
 /* Setup configured maximum number of CPUs to activate */
 unsigned int setup_max_cpus = NR_CPUS;
-- 
cgit 


From 40c01e8bd5575e32633192513e09eac7155d6926 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Thu, 14 Nov 2013 14:32:08 -0800
Subject: kernel: provide a __smp_call_function_single stub for !CONFIG_SMP

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/up.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/kernel/up.c b/kernel/up.c
index 630d72bf7e41..509403e3fbc6 100644
--- a/kernel/up.c
+++ b/kernel/up.c
@@ -22,6 +22,17 @@ int smp_call_function_single(int cpu, void (*func) (void *info), void *info,
 }
 EXPORT_SYMBOL(smp_call_function_single);
 
+void __smp_call_function_single(int cpu, struct call_single_data *csd,
+				int wait)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+	csd->func(csd->info);
+	local_irq_restore(flags);
+}
+EXPORT_SYMBOL(__smp_call_function_single);
+
 int on_each_cpu(smp_call_func_t func, void *info, int wait)
 {
 	unsigned long flags;
-- 
cgit 


From 7cf64f861b7a43b395f0855994003254b06a7e5a Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Thu, 14 Nov 2013 14:32:09 -0800
Subject: kernel-provide-a-__smp_call_function_single-stub-for-config_smp-fix

x86_64 allnoconfig:

  kernel/up.c:25: error: redefinition of '__smp_call_function_single'
  include/linux/smp.h:154: note: previous definition of '__smp_call_function_single' was here

Cc: Christoph Hellwig <hch@infradead.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/smp.h | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/include/linux/smp.h b/include/linux/smp.h
index 78851513030d..5da22ee42e16 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -49,6 +49,9 @@ void on_each_cpu_cond(bool (*cond_func)(int cpu, void *info),
 		smp_call_func_t func, void *info, bool wait,
 		gfp_t gfp_flags);
 
+void __smp_call_function_single(int cpuid, struct call_single_data *data,
+				int wait);
+
 #ifdef CONFIG_SMP
 
 #include <linux/preempt.h>
@@ -95,9 +98,6 @@ int smp_call_function(smp_call_func_t func, void *info, int wait);
 void smp_call_function_many(const struct cpumask *mask,
 			    smp_call_func_t func, void *info, bool wait);
 
-void __smp_call_function_single(int cpuid, struct call_single_data *data,
-				int wait);
-
 int smp_call_function_any(const struct cpumask *mask,
 			  smp_call_func_t func, void *info, int wait);
 
@@ -151,12 +151,6 @@ smp_call_function_any(const struct cpumask *mask, smp_call_func_t func,
 
 static inline void kick_all_cpus_sync(void) {  }
 
-static inline void __smp_call_function_single(int cpuid,
-		struct call_single_data *data, int wait)
-{
-	on_each_cpu(data->func, data->info, wait);
-}
-
 #endif /* !SMP */
 
 /*
-- 
cgit 


From ca5ecd64c2cdbcd316d789467147e732746f39fa Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Thu, 14 Nov 2013 14:32:10 -0800
Subject: kernel: fix generic_exec_single indentation

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/smp.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/smp.c b/kernel/smp.c
index 1c194e20e943..bd9f94028838 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -139,8 +139,7 @@ static void csd_unlock(struct call_single_data *csd)
  * for execution on the given CPU. data must already have
  * ->func, ->info, and ->flags set.
  */
-static
-void generic_exec_single(int cpu, struct call_single_data *csd, int wait)
+static void generic_exec_single(int cpu, struct call_single_data *csd, int wait)
 {
 	struct call_single_queue *dst = &per_cpu(call_single_queue, cpu);
 	unsigned long flags;
-- 
cgit 


From b89241e8cdb8321c20546d47645a9b65b58113b5 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Thu, 14 Nov 2013 14:32:11 -0800
Subject: llists: move llist_reverse_order from raid5 to llist.c

Make this useful helper available for other users.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/md/raid5.c    | 14 --------------
 include/linux/llist.h |  2 ++
 lib/llist.c           | 22 ++++++++++++++++++++++
 3 files changed, 24 insertions(+), 14 deletions(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index f8b906843926..7f0e17a27aeb 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -293,20 +293,6 @@ static void __release_stripe(struct r5conf *conf, struct stripe_head *sh)
 		do_release_stripe(conf, sh);
 }
 
-static struct llist_node *llist_reverse_order(struct llist_node *head)
-{
-	struct llist_node *new_head = NULL;
-
-	while (head) {
-		struct llist_node *tmp = head;
-		head = head->next;
-		tmp->next = new_head;
-		new_head = tmp;
-	}
-
-	return new_head;
-}
-
 /* should hold conf->device_lock already */
 static int release_stripe_list(struct r5conf *conf)
 {
diff --git a/include/linux/llist.h b/include/linux/llist.h
index 8828a78dec9a..fbf10a0bc095 100644
--- a/include/linux/llist.h
+++ b/include/linux/llist.h
@@ -195,4 +195,6 @@ static inline struct llist_node *llist_del_all(struct llist_head *head)
 
 extern struct llist_node *llist_del_first(struct llist_head *head);
 
+struct llist_node *llist_reverse_order(struct llist_node *head);
+
 #endif /* LLIST_H */
diff --git a/lib/llist.c b/lib/llist.c
index 4a70d120138c..ef48b87247ec 100644
--- a/lib/llist.c
+++ b/lib/llist.c
@@ -81,3 +81,25 @@ struct llist_node *llist_del_first(struct llist_head *head)
 	return entry;
 }
 EXPORT_SYMBOL_GPL(llist_del_first);
+
+/**
+ * llist_reverse_order - reverse order of a llist chain
+ * @head:	first item of the list to be reversed
+ *
+ * Reverse the oder of a chain of llist entries and return the
+ * new first entry.
+ */
+struct llist_node *llist_reverse_order(struct llist_node *head)
+{
+	struct llist_node *new_head = NULL;
+
+	while (head) {
+		struct llist_node *tmp = head;
+		head = head->next;
+		tmp->next = new_head;
+		new_head = tmp;
+	}
+
+	return new_head;
+}
+EXPORT_SYMBOL_GPL(llist_reverse_order);
-- 
cgit 


From 0791a6057cb60d12ec5e3182b99e6ffa8044ee3a Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Thu, 14 Nov 2013 14:32:13 -0800
Subject: llists-move-llist_reverse_order-from-raid5-to-llistc-fix

fix comment typo, per Jan

Cc: Christoph Hellwig <hch@lst.de>
Cc: Jan Kara <jack@suse.cz>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 lib/llist.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/llist.c b/lib/llist.c
index ef48b87247ec..f76196d07409 100644
--- a/lib/llist.c
+++ b/lib/llist.c
@@ -86,7 +86,7 @@ EXPORT_SYMBOL_GPL(llist_del_first);
  * llist_reverse_order - reverse order of a llist chain
  * @head:	first item of the list to be reversed
  *
- * Reverse the oder of a chain of llist entries and return the
+ * Reverse the order of a chain of llist entries and return the
  * new first entry.
  */
 struct llist_node *llist_reverse_order(struct llist_node *head)
-- 
cgit 


From 07968fe4acec6d49e39520ef407ea7f6874b7c2e Mon Sep 17 00:00:00 2001
From: Nicolin Chen <b42378@freescale.com>
Date: Thu, 14 Nov 2013 14:32:15 -0800
Subject: sound/core/memalloc.c: use gen_pool_dma_alloc() to allocate iram
 buffer

Since gen_pool_dma_alloc() is introduced, we implement it to simplify code.

Signed-off-by: Nicolin Chen <b42378@freescale.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 sound/core/memalloc.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/sound/core/memalloc.c b/sound/core/memalloc.c
index 9d93f02c6285..5e1c7bc73b29 100644
--- a/sound/core/memalloc.c
+++ b/sound/core/memalloc.c
@@ -184,11 +184,7 @@ static void snd_malloc_dev_iram(struct snd_dma_buffer *dmab, size_t size)
 	/* Assign the pool into private_data field */
 	dmab->private_data = pool;
 
-	dmab->area = (void *)gen_pool_alloc(pool, size);
-	if (!dmab->area)
-		return;
-
-	dmab->addr = gen_pool_virt_to_phys(pool, (unsigned long)dmab->area);
+	dmab->area = gen_pool_dma_alloc(pool, size, &dmab->addr);
 }
 
 /**
-- 
cgit 


From a019e48cfbfb358786326db3dbc1c565b8f14a56 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Thu, 14 Nov 2013 14:32:16 -0800
Subject: kfifo: kfifo_copy_{to,from}_user: fix copied bytes calculation

'copied' and 'len' are in bytes, while 'ret' is in elements, so we need to
multiply 'ret' with the size of one element to get the correct result.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Cc: Stefani Seibold <stefani@seibold.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 lib/kfifo.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/kfifo.c b/lib/kfifo.c
index 7b7f83027b7b..d79b9d222065 100644
--- a/lib/kfifo.c
+++ b/lib/kfifo.c
@@ -215,7 +215,7 @@ static unsigned long kfifo_copy_from_user(struct __kfifo *fifo,
 	 * incrementing the fifo->in index counter
 	 */
 	smp_wmb();
-	*copied = len - ret;
+	*copied = len - ret * esize;
 	/* return the number of elements which are not copied */
 	return ret;
 }
@@ -275,7 +275,7 @@ static unsigned long kfifo_copy_to_user(struct __kfifo *fifo, void __user *to,
 	 * incrementing the fifo->out index counter
 	 */
 	smp_wmb();
-	*copied = len - ret;
+	*copied = len - ret * esize;
 	/* return the number of elements which are not copied */
 	return ret;
 }
-- 
cgit 


From 498d319bb512992ef0784c278fa03679f2f5649d Mon Sep 17 00:00:00 2001
From: Stefani Seibold <stefani@seibold.net>
Date: Thu, 14 Nov 2013 14:32:17 -0800
Subject: kfifo API type safety

This patch enhances the type safety for the kfifo API.  It is now safe
to put const data into a non const FIFO and the API will now generate a
compiler warning when reading from the fifo where the destination
address is pointing to a const variable.

As a side effect the kfifo_put() does now expect the value of an element
instead a pointer to the element.  This was suggested Russell King.  It
make the handling of the kfifo_put easier since there is no need to
create a helper variable for getting the address of a pointer or to pass
integers of different sizes.

IMHO the API break is okay, since there are currently only six users of
kfifo_put().

The code is also cleaner by kicking out the "if (0)" expressions.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Stefani Seibold <stefani@seibold.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/gpu/drm/drm_flip_work.c          |  2 +-
 drivers/iio/industrialio-event.c         |  2 +-
 drivers/net/wireless/rt2x00/rt2800mmio.c |  2 +-
 drivers/net/wireless/rt2x00/rt2800usb.c  |  2 +-
 drivers/pci/pcie/aer/aerdrv_core.c       |  2 +-
 include/linux/kfifo.h                    | 47 ++++++++++----------------------
 mm/memory-failure.c                      |  2 +-
 samples/kfifo/bytestream-example.c       |  4 +--
 samples/kfifo/dma-example.c              |  2 +-
 samples/kfifo/inttype-example.c          |  4 +--
 10 files changed, 25 insertions(+), 44 deletions(-)

diff --git a/drivers/gpu/drm/drm_flip_work.c b/drivers/gpu/drm/drm_flip_work.c
index e788882d9021..f9c7fa3d0012 100644
--- a/drivers/gpu/drm/drm_flip_work.c
+++ b/drivers/gpu/drm/drm_flip_work.c
@@ -34,7 +34,7 @@
  */
 void drm_flip_work_queue(struct drm_flip_work *work, void *val)
 {
-	if (kfifo_put(&work->fifo, (const void **)&val)) {
+	if (kfifo_put(&work->fifo, val)) {
 		atomic_inc(&work->pending);
 	} else {
 		DRM_ERROR("%s fifo full!\n", work->name);
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index dac15b9f9df8..c10eab64bc05 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -56,7 +56,7 @@ int iio_push_event(struct iio_dev *indio_dev, u64 ev_code, s64 timestamp)
 		ev.id = ev_code;
 		ev.timestamp = timestamp;
 
-		copied = kfifo_put(&ev_int->det_events, &ev);
+		copied = kfifo_put(&ev_int->det_events, ev);
 		if (copied != 0)
 			wake_up_locked_poll(&ev_int->wait, POLLIN);
 	}
diff --git a/drivers/net/wireless/rt2x00/rt2800mmio.c b/drivers/net/wireless/rt2x00/rt2800mmio.c
index ae152280e071..a8cc736b5063 100644
--- a/drivers/net/wireless/rt2x00/rt2800mmio.c
+++ b/drivers/net/wireless/rt2x00/rt2800mmio.c
@@ -446,7 +446,7 @@ static void rt2800mmio_txstatus_interrupt(struct rt2x00_dev *rt2x00dev)
 		if (!rt2x00_get_field32(status, TX_STA_FIFO_VALID))
 			break;
 
-		if (!kfifo_put(&rt2x00dev->txstatus_fifo, &status)) {
+		if (!kfifo_put(&rt2x00dev->txstatus_fifo, status)) {
 			rt2x00_warn(rt2x00dev, "TX status FIFO overrun, drop tx status report\n");
 			break;
 		}
diff --git a/drivers/net/wireless/rt2x00/rt2800usb.c b/drivers/net/wireless/rt2x00/rt2800usb.c
index 997df03a0c2e..a81ceb61d746 100644
--- a/drivers/net/wireless/rt2x00/rt2800usb.c
+++ b/drivers/net/wireless/rt2x00/rt2800usb.c
@@ -164,7 +164,7 @@ static bool rt2800usb_tx_sta_fifo_read_completed(struct rt2x00_dev *rt2x00dev,
 
 	valid = rt2x00_get_field32(tx_status, TX_STA_FIFO_VALID);
 	if (valid) {
-		if (!kfifo_put(&rt2x00dev->txstatus_fifo, &tx_status))
+		if (!kfifo_put(&rt2x00dev->txstatus_fifo, tx_status))
 			rt2x00_warn(rt2x00dev, "TX status FIFO overrun\n");
 
 		queue_work(rt2x00dev->workqueue, &rt2x00dev->txdone_work);
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index 85ca36f2136d..6b3a958e1be6 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -574,7 +574,7 @@ void aer_recover_queue(int domain, unsigned int bus, unsigned int devfn,
 	};
 
 	spin_lock_irqsave(&aer_recover_ring_lock, flags);
-	if (kfifo_put(&aer_recover_ring, &entry))
+	if (kfifo_put(&aer_recover_ring, entry))
 		schedule_work(&aer_recover_work);
 	else
 		pr_err("AER recover: Buffer overflow when recovering AER for %04x:%02x:%02x:%x\n",
diff --git a/include/linux/kfifo.h b/include/linux/kfifo.h
index 10308c6a3d1c..552d51efb429 100644
--- a/include/linux/kfifo.h
+++ b/include/linux/kfifo.h
@@ -1,7 +1,7 @@
 /*
  * A generic kernel FIFO implementation
  *
- * Copyright (C) 2009/2010 Stefani Seibold <stefani@seibold.net>
+ * Copyright (C) 2013 Stefani Seibold <stefani@seibold.net>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -67,9 +67,10 @@ struct __kfifo {
 	union { \
 		struct __kfifo	kfifo; \
 		datatype	*type; \
+		const datatype	*const_type; \
 		char		(*rectype)[recsize]; \
 		ptrtype		*ptr; \
-		const ptrtype	*ptr_const; \
+		ptrtype const	*ptr_const; \
 	}
 
 #define __STRUCT_KFIFO(type, size, recsize, ptrtype) \
@@ -386,16 +387,12 @@ __kfifo_int_must_check_helper( \
 #define	kfifo_put(fifo, val) \
 ({ \
 	typeof((fifo) + 1) __tmp = (fifo); \
-	typeof((val) + 1) __val = (val); \
+	typeof(*__tmp->const_type) __val = (val); \
 	unsigned int __ret; \
-	const size_t __recsize = sizeof(*__tmp->rectype); \
+	size_t __recsize = sizeof(*__tmp->rectype); \
 	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	if (0) { \
-		typeof(__tmp->ptr_const) __dummy __attribute__ ((unused)); \
-		__dummy = (typeof(__val))NULL; \
-	} \
 	if (__recsize) \
-		__ret = __kfifo_in_r(__kfifo, __val, sizeof(*__val), \
+		__ret = __kfifo_in_r(__kfifo, &__val, sizeof(__val), \
 			__recsize); \
 	else { \
 		__ret = !kfifo_is_full(__tmp); \
@@ -404,7 +401,7 @@ __kfifo_int_must_check_helper( \
 			((typeof(__tmp->type))__kfifo->data) : \
 			(__tmp->buf) \
 			)[__kfifo->in & __tmp->kfifo.mask] = \
-				*(typeof(__tmp->type))__val; \
+				(typeof(*__tmp->type))__val; \
 			smp_wmb(); \
 			__kfifo->in++; \
 		} \
@@ -415,7 +412,7 @@ __kfifo_int_must_check_helper( \
 /**
  * kfifo_get - get data from the fifo
  * @fifo: address of the fifo to be used
- * @val: the var where to store the data to be added
+ * @val: address where to store the data
  *
  * This macro reads the data from the fifo.
  * It returns 0 if the fifo was empty. Otherwise it returns the number
@@ -428,12 +425,10 @@ __kfifo_int_must_check_helper( \
 __kfifo_uint_must_check_helper( \
 ({ \
 	typeof((fifo) + 1) __tmp = (fifo); \
-	typeof((val) + 1) __val = (val); \
+	typeof(__tmp->ptr) __val = (val); \
 	unsigned int __ret; \
 	const size_t __recsize = sizeof(*__tmp->rectype); \
 	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	if (0) \
-		__val = (typeof(__tmp->ptr))0; \
 	if (__recsize) \
 		__ret = __kfifo_out_r(__kfifo, __val, sizeof(*__val), \
 			__recsize); \
@@ -456,7 +451,7 @@ __kfifo_uint_must_check_helper( \
 /**
  * kfifo_peek - get data from the fifo without removing
  * @fifo: address of the fifo to be used
- * @val: the var where to store the data to be added
+ * @val: address where to store the data
  *
  * This reads the data from the fifo without removing it from the fifo.
  * It returns 0 if the fifo was empty. Otherwise it returns the number
@@ -469,12 +464,10 @@ __kfifo_uint_must_check_helper( \
 __kfifo_uint_must_check_helper( \
 ({ \
 	typeof((fifo) + 1) __tmp = (fifo); \
-	typeof((val) + 1) __val = (val); \
+	typeof(__tmp->ptr) __val = (val); \
 	unsigned int __ret; \
 	const size_t __recsize = sizeof(*__tmp->rectype); \
 	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	if (0) \
-		__val = (typeof(__tmp->ptr))NULL; \
 	if (__recsize) \
 		__ret = __kfifo_out_peek_r(__kfifo, __val, sizeof(*__val), \
 			__recsize); \
@@ -508,14 +501,10 @@ __kfifo_uint_must_check_helper( \
 #define	kfifo_in(fifo, buf, n) \
 ({ \
 	typeof((fifo) + 1) __tmp = (fifo); \
-	typeof((buf) + 1) __buf = (buf); \
+	typeof(__tmp->ptr_const) __buf = (buf); \
 	unsigned long __n = (n); \
 	const size_t __recsize = sizeof(*__tmp->rectype); \
 	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	if (0) { \
-		typeof(__tmp->ptr_const) __dummy __attribute__ ((unused)); \
-		__dummy = (typeof(__buf))NULL; \
-	} \
 	(__recsize) ?\
 	__kfifo_in_r(__kfifo, __buf, __n, __recsize) : \
 	__kfifo_in(__kfifo, __buf, __n); \
@@ -561,14 +550,10 @@ __kfifo_uint_must_check_helper( \
 __kfifo_uint_must_check_helper( \
 ({ \
 	typeof((fifo) + 1) __tmp = (fifo); \
-	typeof((buf) + 1) __buf = (buf); \
+	typeof(__tmp->ptr) __buf = (buf); \
 	unsigned long __n = (n); \
 	const size_t __recsize = sizeof(*__tmp->rectype); \
 	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	if (0) { \
-		typeof(__tmp->ptr) __dummy = NULL; \
-		__buf = __dummy; \
-	} \
 	(__recsize) ?\
 	__kfifo_out_r(__kfifo, __buf, __n, __recsize) : \
 	__kfifo_out(__kfifo, __buf, __n); \
@@ -773,14 +758,10 @@ __kfifo_uint_must_check_helper( \
 __kfifo_uint_must_check_helper( \
 ({ \
 	typeof((fifo) + 1) __tmp = (fifo); \
-	typeof((buf) + 1) __buf = (buf); \
+	typeof(__tmp->ptr) __buf = (buf); \
 	unsigned long __n = (n); \
 	const size_t __recsize = sizeof(*__tmp->rectype); \
 	struct __kfifo *__kfifo = &__tmp->kfifo; \
-	if (0) { \
-		typeof(__tmp->ptr) __dummy __attribute__ ((unused)) = NULL; \
-		__buf = __dummy; \
-	} \
 	(__recsize) ? \
 	__kfifo_out_peek_r(__kfifo, __buf, __n, __recsize) : \
 	__kfifo_out_peek(__kfifo, __buf, __n); \
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index f9d78ec7831f..b7c171602ba1 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -1269,7 +1269,7 @@ void memory_failure_queue(unsigned long pfn, int trapno, int flags)
 
 	mf_cpu = &get_cpu_var(memory_failure_cpu);
 	spin_lock_irqsave(&mf_cpu->lock, proc_flags);
-	if (kfifo_put(&mf_cpu->fifo, &entry))
+	if (kfifo_put(&mf_cpu->fifo, entry))
 		schedule_work_on(smp_processor_id(), &mf_cpu->work);
 	else
 		pr_err("Memory failure: buffer overflow when queuing memory failure at %#lx\n",
diff --git a/samples/kfifo/bytestream-example.c b/samples/kfifo/bytestream-example.c
index cfe40addda76..2fca916d9edf 100644
--- a/samples/kfifo/bytestream-example.c
+++ b/samples/kfifo/bytestream-example.c
@@ -64,7 +64,7 @@ static int __init testfunc(void)
 
 	/* put values into the fifo */
 	for (i = 0; i != 10; i++)
-		kfifo_put(&test, &i);
+		kfifo_put(&test, i);
 
 	/* show the number of used elements */
 	printk(KERN_INFO "fifo len: %u\n", kfifo_len(&test));
@@ -85,7 +85,7 @@ static int __init testfunc(void)
 	kfifo_skip(&test);
 
 	/* put values into the fifo until is full */
-	for (i = 20; kfifo_put(&test, &i); i++)
+	for (i = 20; kfifo_put(&test, i); i++)
 		;
 
 	printk(KERN_INFO "queue len: %u\n", kfifo_len(&test));
diff --git a/samples/kfifo/dma-example.c b/samples/kfifo/dma-example.c
index 06473791c08a..aa243db93f01 100644
--- a/samples/kfifo/dma-example.c
+++ b/samples/kfifo/dma-example.c
@@ -39,7 +39,7 @@ static int __init example_init(void)
 	kfifo_in(&fifo, "test", 4);
 
 	for (i = 0; i != 9; i++)
-		kfifo_put(&fifo, &i);
+		kfifo_put(&fifo, i);
 
 	/* kick away first byte */
 	kfifo_skip(&fifo);
diff --git a/samples/kfifo/inttype-example.c b/samples/kfifo/inttype-example.c
index 6f8e79e76c9e..8dc3c2e7105a 100644
--- a/samples/kfifo/inttype-example.c
+++ b/samples/kfifo/inttype-example.c
@@ -61,7 +61,7 @@ static int __init testfunc(void)
 
 	/* put values into the fifo */
 	for (i = 0; i != 10; i++)
-		kfifo_put(&test, &i);
+		kfifo_put(&test, i);
 
 	/* show the number of used elements */
 	printk(KERN_INFO "fifo len: %u\n", kfifo_len(&test));
@@ -78,7 +78,7 @@ static int __init testfunc(void)
 	kfifo_skip(&test);
 
 	/* put values into the fifo until is full */
-	for (i = 20; kfifo_put(&test, &i); i++)
+	for (i = 20; kfifo_put(&test, i); i++)
 		;
 
 	printk(KERN_INFO "queue len: %u\n", kfifo_len(&test));
-- 
cgit 


From a99b7069aab8fc3fb4f26d15795dc280b52e38b1 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Thu, 14 Nov 2013 14:32:18 -0800
Subject: hfsplus: Fix undefined __divdi3 in hfsplus_init_header_node()

ERROR: "__divdi3" [fs/hfsplus/hfsplus.ko] undefined!

Introduced by commit 099e9245e04d ("hfsplus: implement attributes file's
header node initialization code").

i_size_read() returns loff_t, which is long long, i.e.  64-bit.  node_size
is size_t, which is either 32-bit or 64-bit.  Hence
"i_size_read(attr_file) / node_size" is a 64-by-32 or 64-by-64 division,
causing (some versions of) gcc to emit a call to __divdi3().

Fortunately node_size is actually 16-bit, as the sole caller of
hfsplus_init_header_node() passes a u16.  Hence change its type from
size_t to u16, and use do_div() to perform a 64-by-32 division.

Not seen in m68k/allmodconfig in -next, so it really depends on the
verion of gcc.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Vyacheslav Dubeyko <slava@dubeyko.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/hfsplus/xattr.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/fs/hfsplus/xattr.c b/fs/hfsplus/xattr.c
index efc85b1377cc..3c6136f98c73 100644
--- a/fs/hfsplus/xattr.c
+++ b/fs/hfsplus/xattr.c
@@ -129,7 +129,7 @@ static int can_set_xattr(struct inode *inode, const char *name,
 
 static void hfsplus_init_header_node(struct inode *attr_file,
 					u32 clump_size,
-					char *buf, size_t node_size)
+					char *buf, u16 node_size)
 {
 	struct hfs_bnode_desc *desc;
 	struct hfs_btree_header_rec *head;
@@ -139,8 +139,9 @@ static void hfsplus_init_header_node(struct inode *attr_file,
 	char *bmp;
 	u32 used_nodes;
 	u32 used_bmp_bytes;
+	loff_t tmp;
 
-	hfs_dbg(ATTR_MOD, "init_hdr_attr_file: clump %u, node_size %zu\n",
+	hfs_dbg(ATTR_MOD, "init_hdr_attr_file: clump %u, node_size %u\n",
 				clump_size, node_size);
 
 	/* The end of the node contains list of record offsets */
@@ -154,7 +155,9 @@ static void hfsplus_init_header_node(struct inode *attr_file,
 
 	head = (struct hfs_btree_header_rec *)(buf + offset);
 	head->node_size = cpu_to_be16(node_size);
-	head->node_count = cpu_to_be32(i_size_read(attr_file) / node_size);
+	tmp = i_size_read(attr_file);
+	do_div(tmp, node_size);
+	head->node_count = cpu_to_be32(tmp);
 	head->free_nodes = cpu_to_be32(be32_to_cpu(head->node_count) - 1);
 	head->clump_size = cpu_to_be32(clump_size);
 	head->attributes |= cpu_to_be32(HFS_TREE_BIGKEYS | HFS_TREE_VARIDXKEYS);
-- 
cgit 


From 8d3ef556aba2b5b7d8b7144f7be1814d75ea3cc6 Mon Sep 17 00:00:00 2001
From: Alexander Beregalov <a.beregalov@gmail.com>
Date: Thu, 14 Nov 2013 14:32:19 -0800
Subject: cmdline-parser: fix build

Fix following errors:

  include/linux/cmdline-parser.h:17:12: error: 'BDEVNAME_SIZE' undeclared here
  block/cmdline-parser.c:17:2: error: implicit declaration of function 'kzalloc'

Signed-off-by: Alexander Beregalov <alexander.beregalov@intel.com>
Cc: CaiZhiyong <caizhiyong@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/cmdline-parser.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/linux/cmdline-parser.h b/include/linux/cmdline-parser.h
index 98e892ef6d5a..a0f9280421ec 100644
--- a/include/linux/cmdline-parser.h
+++ b/include/linux/cmdline-parser.h
@@ -8,6 +8,8 @@
 #define CMDLINEPARSEH
 
 #include <linux/blkdev.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
 
 /* partition flags */
 #define PF_RDONLY                   0x01 /* Device is read only */
-- 
cgit 


From 936816161978ca716a56c5e553c68f25972b1e3a Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Thu, 14 Nov 2013 17:36:42 -0800
Subject: Revert "Input: ALPS - add support for model found on Dell XT2"

This reverts commit 5beea882e64121dfe3b33145767d3302afa784d5 as it
breaks trackpoint operation on XT2.
---
 drivers/input/mouse/alps.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 83658472ad25..7c5d72a6a26a 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -103,7 +103,6 @@ static const struct alps_model_info alps_model_data[] = {
 	/* Dell Latitude E5500, E6400, E6500, Precision M4400 */
 	{ { 0x62, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf,
 		ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED },
-	{ { 0x73, 0x00, 0x14 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_DUALPOINT },		/* Dell XT2 */
 	{ { 0x73, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS },		/* Dell Vostro 1400 */
 	{ { 0x52, 0x01, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff,
 		ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED },				/* Toshiba Tecra A11-11L */
-- 
cgit 


From ba52b7d4afaec172073a4169e1d6522552b2979c Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Thu, 14 Nov 2013 13:09:24 -0800
Subject: video: exynos_mipi_dsim: Remove unused variable

commit 7e0be9f9f7cba3356f75b86737dbe3a005da067e ('video: exynos_mipi_dsim:
Use the generic PHY driver') resulted in a warning about an unused
variable:

drivers/video/exynos/exynos_mipi_dsi.c:144:26: warning: unused variable
    'pdev' [-Wunused-variable]

It is indeed unused; remove it.

Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Inki Dae <inki.dae@samsung.com>
---
 drivers/video/exynos/exynos_mipi_dsi.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/video/exynos/exynos_mipi_dsi.c b/drivers/video/exynos/exynos_mipi_dsi.c
index 00b3a52c1d68..cee9602f9a7b 100644
--- a/drivers/video/exynos/exynos_mipi_dsi.c
+++ b/drivers/video/exynos/exynos_mipi_dsi.c
@@ -141,7 +141,6 @@ static int exynos_mipi_dsi_early_blank_mode(struct mipi_dsim_device *dsim,
 
 static int exynos_mipi_dsi_blank_mode(struct mipi_dsim_device *dsim, int power)
 {
-	struct platform_device *pdev = to_platform_device(dsim->dev);
 	struct mipi_dsim_lcd_driver *client_drv = dsim->dsim_lcd_drv;
 	struct mipi_dsim_lcd_device *client_dev = dsim->dsim_lcd_dev;
 
-- 
cgit 


From 230c4aadcc394fb48d865a1cd96c8725dabad56d Mon Sep 17 00:00:00 2001
From: Mischa Jonker <mjonker@synopsys.com>
Date: Wed, 13 Nov 2013 16:06:06 +0100
Subject: ARC: perf: ARC 700 PMU doesn't support sampling events

The ARC 700 does not have an interrupt associated with it, and as
such it cannot trigger when a counter overflows. As the counters are
48 bit, it will usually take at least 100 days before a counter
overflows, so for mere counting of events, there is no problem.
Sampling is not supported though.

Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/kernel/perf_event.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arc/kernel/perf_event.c b/arch/arc/kernel/perf_event.c
index 759e5f3e9029..e46d81f70979 100644
--- a/arch/arc/kernel/perf_event.c
+++ b/arch/arc/kernel/perf_event.c
@@ -99,6 +99,10 @@ static int arc_pmu_event_init(struct perf_event *event)
 	struct hw_perf_event *hwc = &event->hw;
 	int ret;
 
+	/* ARC 700 PMU does not support sampling events */
+	if (is_sampling_event(event))
+		return -ENOENT;
+
 	switch (event->attr.type) {
 	case PERF_TYPE_HARDWARE:
 		if (event->attr.config >= PERF_COUNT_HW_MAX)
-- 
cgit 


From cd5dfd0e1685530cb3159dec2d2a95421104093d Mon Sep 17 00:00:00 2001
From: Mischa Jonker <mjonker@synopsys.com>
Date: Wed, 13 Nov 2013 16:06:36 +0100
Subject: ARC: [plat-arcfpga] Add defconfig without initramfs location

This is useful if you want to build a kernel without a ramfs, or
if you want to test the kernel build without having an initramfs
available at the hardcoded location.

Cc: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/configs/fpga_noramfs_defconfig | 64 +++++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)
 create mode 100644 arch/arc/configs/fpga_noramfs_defconfig

diff --git a/arch/arc/configs/fpga_noramfs_defconfig b/arch/arc/configs/fpga_noramfs_defconfig
new file mode 100644
index 000000000000..5276a52f6a2f
--- /dev/null
+++ b/arch/arc/configs/fpga_noramfs_defconfig
@@ -0,0 +1,64 @@
+CONFIG_CROSS_COMPILE="arc-linux-uclibc-"
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_DEFAULT_HOSTNAME="ARCLinux"
+# CONFIG_SWAP is not set
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_NAMESPACES=y
+# CONFIG_UTS_NS is not set
+# CONFIG_PID_NS is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_EMBEDDED=y
+# CONFIG_SLUB_DEBUG is not set
+# CONFIG_COMPAT_BRK is not set
+CONFIG_KPROBES=y
+CONFIG_MODULES=y
+# CONFIG_LBDAF is not set
+# CONFIG_BLK_DEV_BSG is not set
+# CONFIG_IOSCHED_DEADLINE is not set
+# CONFIG_IOSCHED_CFQ is not set
+CONFIG_ARC_PLAT_FPGA_LEGACY=y
+CONFIG_ARC_BOARD_ML509=y
+# CONFIG_ARC_HAS_RTSC is not set
+CONFIG_ARC_BUILTIN_DTB_NAME="angel4"
+CONFIG_PREEMPT=y
+# CONFIG_COMPACTION is not set
+# CONFIG_CROSS_MEMORY_ATTACH is not set
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_UNIX_DIAG=y
+CONFIG_NET_KEY=y
+CONFIG_INET=y
+# CONFIG_IPV6 is not set
+# CONFIG_STANDALONE is not set
+# CONFIG_PREVENT_FIRMWARE_BUILD is not set
+# CONFIG_FIRMWARE_IN_KERNEL is not set
+# CONFIG_BLK_DEV is not set
+CONFIG_NETDEVICES=y
+CONFIG_ARC_EMAC=y
+CONFIG_LXT_PHY=y
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+# CONFIG_INPUT_KEYBOARD is not set
+# CONFIG_INPUT_MOUSE is not set
+# CONFIG_SERIO is not set
+# CONFIG_LEGACY_PTYS is not set
+# CONFIG_DEVKMEM is not set
+CONFIG_SERIAL_ARC=y
+CONFIG_SERIAL_ARC_CONSOLE=y
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_VGA_CONSOLE is not set
+# CONFIG_HID is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_IOMMU_SUPPORT is not set
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_TMPFS=y
+# CONFIG_MISC_FILESYSTEMS is not set
+CONFIG_NFS_FS=y
+# CONFIG_ENABLE_WARN_DEPRECATED is not set
+# CONFIG_ENABLE_MUST_CHECK is not set
+CONFIG_XZ_DEC=y
-- 
cgit 


From 7486d6da09d4d76d49c68826c97578246936092b Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 14 Nov 2013 14:59:45 -0800
Subject: MAINTAINERS: Update file patterns in the lockdep and scheduler
 entries

Propagate the file movement effects of the following commits:

  7a6354e241d8 sched: Move wait.c into kernel/sched/
  8eddac3f1037 locking: Move the lockdep code to kernel/locking/

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1384469985.2897.32.camel@joe-AO722
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 MAINTAINERS | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index f3ef1d1f6029..3f85561f4a8b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5236,7 +5236,7 @@ S:	Maintained
 F:	Documentation/lockdep*.txt
 F:	Documentation/lockstat.txt
 F:	include/linux/lockdep.h
-F:	kernel/lockdep*
+F:	kernel/locking/
 
 LOGICAL DISK MANAGER SUPPORT (LDM, Windows 2000/XP/Vista Dynamic Disks)
 M:	"Richard Russon (FlatCap)" <ldm@flatcap.org>
@@ -7361,7 +7361,6 @@ S:	Maintained
 F:	kernel/sched/
 F:	include/linux/sched.h
 F:	include/uapi/linux/sched.h
-F:	kernel/wait.c
 F:	include/linux/wait.h
 
 SCORE ARCHITECTURE
-- 
cgit 


From cc08e04c3fdcaab767b8db27527002b2b4d758cb Mon Sep 17 00:00:00 2001
From: David Rientjes <rientjes@google.com>
Date: Thu, 14 Nov 2013 15:05:32 -0800
Subject: x86: Export 'boot_cpu_physical_apicid' to modules

Commit 9ebddac7ea2a "ACPI, x86: Fix extended error log driver to depend on
CONFIG_X86_LOCAL_APIC" fixed a build error when CONFIG_X86_LOCAL_APIC was not
selected and !CONFIG_SMP.

However, since CONFIG_ACPI_EXTLOG is tristate, there is a second build error:

  ERROR: "boot_cpu_physical_apicid" [drivers/acpi/acpi_extlog.ko] undefined!

The symbol needs to be exported for it to be available.

Signed-off-by: David Rientjes <rientjes@google.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Cc: Chen Gong <gong.chen@linux.intel.com>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1311141504080.30112@chino.kir.corp.google.com
[ Changed it to a _GPL() export. ]
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/kernel/apic/apic.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index a7eb82d9b012..befe4982198a 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -62,6 +62,7 @@ unsigned disabled_cpus;
 
 /* Processor that is doing the boot up */
 unsigned int boot_cpu_physical_apicid = -1U;
+EXPORT_SYMBOL_GPL(boot_cpu_physical_apicid);
 
 /*
  * The highest APIC ID seen during enumeration.
-- 
cgit 


From 3db0a197ed86317ab2915bc8bddb91807b0f0e96 Mon Sep 17 00:00:00 2001
From: Erik Hugne <erik.hugne@ericsson.com>
Date: Wed, 13 Nov 2013 09:35:11 +0100
Subject: tipc: fix dereference before check warning

This fixes the following Smatch warning:
net/tipc/link.c:2364 tipc_link_recv_fragment()
    warn: variable dereferenced before check '*head' (see line 2361)

A null pointer might be passed to skb_try_coalesce if
a malicious sender injects orphan fragments on a link.

Signed-off-by: Erik Hugne <erik.hugne@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/tipc/link.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/tipc/link.c b/net/tipc/link.c
index cf465d66ccde..69cd9bf3f561 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -2358,7 +2358,8 @@ int tipc_link_recv_fragment(struct sk_buff **head, struct sk_buff **tail,
 		*head = frag;
 		skb_frag_list_init(*head);
 		return 0;
-	} else if (skb_try_coalesce(*head, frag, &headstolen, &delta)) {
+	} else if (*head &&
+		   skb_try_coalesce(*head, frag, &headstolen, &delta)) {
 		kfree_skb_partial(frag, headstolen);
 	} else {
 		if (!*head)
-- 
cgit 


From 1188f05497e7bd2f2614b99c54adfbe7413d5749 Mon Sep 17 00:00:00 2001
From: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Date: Wed, 13 Nov 2013 11:03:39 +0200
Subject: 6lowpan: Uncompression of traffic class field was incorrect

If priority/traffic class field in IPv6 header is set (seen when
using ssh), the uncompression sets the TC and Flow fields incorrectly.

Example:

This is IPv6 header of a sent packet. Note the priority/TC (=1) in
the first byte.

00000000: 61 00 00 00 00 2c 06 40 fe 80 00 00 00 00 00 00
00000010: 02 02 72 ff fe c6 42 10 fe 80 00 00 00 00 00 00
00000020: 02 1e ab ff fe 4c 52 57

This gets compressed like this in the sending side

00000000: 72 31 04 06 02 1e ab ff fe 4c 52 57 ec c2 00 16
00000010: aa 2d fe 92 86 4e be c6 ....

In the receiving end, the packet gets uncompressed to this
IPv6 header

00000000: 60 06 06 02 00 2a 1e 40 fe 80 00 00 00 00 00 00
00000010: 02 02 72 ff fe c6 42 10 fe 80 00 00 00 00 00 00
00000020: ab ff fe 4c 52 57 ec c2

First four bytes are set incorrectly and we have also lost
two bytes from destination address.

The fix is to switch the case values in switch statement
when checking the TC field.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ieee802154/6lowpan.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ieee802154/6lowpan.c b/net/ieee802154/6lowpan.c
index 426b5df1c98f..459e200c08a4 100644
--- a/net/ieee802154/6lowpan.c
+++ b/net/ieee802154/6lowpan.c
@@ -956,7 +956,7 @@ lowpan_process_data(struct sk_buff *skb)
 	 * Traffic class carried in-line
 	 * ECN + DSCP (1 byte), Flow Label is elided
 	 */
-	case 1: /* 10b */
+	case 2: /* 10b */
 		if (lowpan_fetch_skb_u8(skb, &tmp))
 			goto drop;
 
@@ -967,7 +967,7 @@ lowpan_process_data(struct sk_buff *skb)
 	 * Flow Label carried in-line
 	 * ECN + 2-bit Pad + Flow Label (3 bytes), DSCP is elided
 	 */
-	case 2: /* 01b */
+	case 1: /* 01b */
 		if (lowpan_fetch_skb_u8(skb, &tmp))
 			goto drop;
 
-- 
cgit 


From f70de486b2dd21b60705e57afecdc5f6a79be4e7 Mon Sep 17 00:00:00 2001
From: Sonic Zhang <sonic.zhang@analog.com>
Date: Mon, 1 Jul 2013 11:24:46 +0800
Subject: Blackfin: bfin_gpio: Use proper mask for comparing pfunc

For BF537_FAMILY, when offset != 1, the mask is 1.
Thus add proper mask for comparing pfunc with function.

Also has small refactor for better readability.
In portmux_setup(), it looks odd having "pmux &= ~(3 << 1);"
while in current code we do pmux |= (function << offset);.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
---
 arch/blackfin/kernel/bfin_gpio.c | 23 ++++++++++++++---------
 1 file changed, 14 insertions(+), 9 deletions(-)

diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index ed978f1c5cb9..780d27db1257 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -255,7 +255,7 @@ static int portmux_group_check(unsigned short per)
 	u16 ident = P_IDENT(per);
 	u16 function = P_FUNCT2MUX(per);
 	s8 offset = port_mux[ident];
-	u16 m, pmux, pfunc;
+	u16 m, pmux, pfunc, mask;
 
 	if (offset < 0)
 		return 0;
@@ -270,10 +270,12 @@ static int portmux_group_check(unsigned short per)
 			continue;
 
 		if (offset == 1)
-			pfunc = (pmux >> offset) & 3;
+			mask = 3;
 		else
-			pfunc = (pmux >> offset) & 1;
-		if (pfunc != function) {
+			mask = 1;
+
+		pfunc = (pmux >> offset) & mask;
+		if (pfunc != (function & mask)) {
 			pr_err("pin group conflict! request pin %d func %d conflict with pin %d func %d\n",
 				ident, function, m, pfunc);
 			return -EINVAL;
@@ -288,17 +290,20 @@ static void portmux_setup(unsigned short per)
 	u16 ident = P_IDENT(per);
 	u16 function = P_FUNCT2MUX(per);
 	s8 offset = port_mux[ident];
-	u16 pmux;
+	u16 pmux, mask;
 
 	if (offset == -1)
 		return;
 
 	pmux = bfin_read_PORT_MUX();
-	if (offset != 1)
-		pmux &= ~(1 << offset);
+	if (offset == 1)
+		mask = 3;
 	else
-		pmux &= ~(3 << 1);
-	pmux |= (function << offset);
+		mask = 1;
+
+	pmux &= ~(mask << offset);
+	pmux |= ((function & mask) << offset);
+
 	bfin_write_PORT_MUX(pmux);
 }
 #elif defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
-- 
cgit 


From 036c5df1839f709ed2018d4cd3bed1934eb26b83 Mon Sep 17 00:00:00 2001
From: Scott Jiang <scott.jiang.linux@gmail.com>
Date: Wed, 26 Jun 2013 17:28:38 -0400
Subject: bf609: update default config for spi

Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
---
 arch/blackfin/configs/BF609-EZKIT_defconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/blackfin/configs/BF609-EZKIT_defconfig b/arch/blackfin/configs/BF609-EZKIT_defconfig
index 13eb73231a9a..4ca39ab6b2bf 100644
--- a/arch/blackfin/configs/BF609-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF609-EZKIT_defconfig
@@ -102,7 +102,7 @@ CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_BLACKFIN_TWI=y
 CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100
 CONFIG_SPI=y
-CONFIG_SPI_BFIN6XX=y
+CONFIG_SPI_BFIN_V3=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 # CONFIG_HWMON is not set
-- 
cgit 


From 54e4ff4d402450af5cec599f1cd9ab34997b3149 Mon Sep 17 00:00:00 2001
From: Sonic Zhang <sonic.zhang@analog.com>
Date: Thu, 30 May 2013 18:37:28 +0800
Subject: blackfin: adi gpio driver and pinctrl driver support

Remove gpio driver for new gpio controller on BF54x and BF60x.
Build the bfin_gpio driver only when other BF5xx processors are selected.
Replace the prefix of some gpio and peripheral functions with adi.
add portmux platform data in machine portmux.h

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Steven Miao <realmz6@gmail.com>
---
 arch/blackfin/Kconfig                           |   8 +
 arch/blackfin/include/asm/gpio.h                | 157 +-------
 arch/blackfin/include/asm/irq.h                 |   3 +-
 arch/blackfin/include/asm/irq_handler.h         |   6 +-
 arch/blackfin/include/asm/portmux.h             |  19 +-
 arch/blackfin/kernel/Makefile                   |   3 +-
 arch/blackfin/kernel/bfin_gpio.c                | 138 +------
 arch/blackfin/mach-bf548/Kconfig                |  34 --
 arch/blackfin/mach-bf548/boards/ezkit.c         | 495 +++++++++++++++++++++++-
 arch/blackfin/mach-bf548/include/mach/gpio.h    |   8 -
 arch/blackfin/mach-bf548/include/mach/irq.h     |   2 +-
 arch/blackfin/mach-bf548/include/mach/portmux.h |   2 -
 arch/blackfin/mach-bf609/Kconfig                |  42 --
 arch/blackfin/mach-bf609/boards/ezkit.c         | 471 +++++++++++++++++++++-
 arch/blackfin/mach-bf609/include/mach/gpio.h    |   8 -
 arch/blackfin/mach-bf609/include/mach/irq.h     |   2 +-
 arch/blackfin/mach-bf609/include/mach/portmux.h |   6 +-
 arch/blackfin/mach-common/ints-priority.c       | 421 ++------------------
 arch/blackfin/mach-common/pm.c                  |  15 +-
 19 files changed, 1044 insertions(+), 796 deletions(-)

diff --git a/arch/blackfin/Kconfig b/arch/blackfin/Kconfig
index f78c9a2c7e28..c1ef4e2ed7b0 100644
--- a/arch/blackfin/Kconfig
+++ b/arch/blackfin/Kconfig
@@ -317,6 +317,14 @@ config BF53x
 	depends on (BF531 || BF532 || BF533 || BF534 || BF536 || BF537)
 	default y
 
+config GPIO_ADI
+	def_bool y
+	depends on (BF51x || BF52x || BF53x || BF538 || BF539 || BF561)
+
+config PINCTRL
+	def_bool y
+	depends on BF54x || BF60x
+
 config MEM_MT48LC64M4A2FB_7E
 	bool
 	depends on (BFIN533_STAMP)
diff --git a/arch/blackfin/include/asm/gpio.h b/arch/blackfin/include/asm/gpio.h
index 98d0133346b5..99d338ca2ea4 100644
--- a/arch/blackfin/include/asm/gpio.h
+++ b/arch/blackfin/include/asm/gpio.h
@@ -25,8 +25,12 @@
 
 #ifndef __ASSEMBLY__
 
+#ifndef CONFIG_PINCTRL
+
 #include <linux/compiler.h>
-#include <linux/gpio.h>
+#include <asm/blackfin.h>
+#include <asm/portmux.h>
+#include <asm/irq_handler.h>
 
 /***********************************************************
 *
@@ -45,7 +49,6 @@
 * MODIFICATION HISTORY :
 **************************************************************/
 
-#if !BFIN_GPIO_PINT
 void set_gpio_dir(unsigned, unsigned short);
 void set_gpio_inen(unsigned, unsigned short);
 void set_gpio_polar(unsigned, unsigned short);
@@ -115,7 +118,6 @@ struct gpio_port_t {
 	unsigned short dummy16;
 	unsigned short inen;
 };
-#endif
 
 #ifdef BFIN_SPECIAL_GPIO_BANKS
 void bfin_special_gpio_free(unsigned gpio);
@@ -127,25 +129,21 @@ void bfin_special_gpio_pm_hibernate_suspend(void);
 #endif
 
 #ifdef CONFIG_PM
-int bfin_pm_standby_ctrl(unsigned ctrl);
+void bfin_gpio_pm_hibernate_restore(void);
+void bfin_gpio_pm_hibernate_suspend(void);
+int bfin_gpio_pm_wakeup_ctrl(unsigned gpio, unsigned ctrl);
+int bfin_gpio_pm_standby_ctrl(unsigned ctrl);
 
 static inline int bfin_pm_standby_setup(void)
 {
-	return bfin_pm_standby_ctrl(1);
+	return bfin_gpio_pm_standby_ctrl(1);
 }
 
 static inline void bfin_pm_standby_restore(void)
 {
-	bfin_pm_standby_ctrl(0);
+	bfin_gpio_pm_standby_ctrl(0);
 }
 
-void bfin_gpio_pm_hibernate_restore(void);
-void bfin_gpio_pm_hibernate_suspend(void);
-void bfin_pint_suspend(void);
-void bfin_pint_resume(void);
-
-# if !BFIN_GPIO_PINT
-int gpio_pm_wakeup_ctrl(unsigned gpio, unsigned ctrl);
 
 struct gpio_port_s {
 	unsigned short data;
@@ -161,7 +159,6 @@ struct gpio_port_s {
 	unsigned short reserved;
 	unsigned short mux;
 };
-# endif
 #endif /*CONFIG_PM*/
 
 /***********************************************************
@@ -178,36 +175,29 @@ struct gpio_port_s {
 *************************************************************
 * MODIFICATION HISTORY :
 **************************************************************/
-
-int bfin_gpio_request(unsigned gpio, const char *label);
-void bfin_gpio_free(unsigned gpio);
 int bfin_gpio_irq_request(unsigned gpio, const char *label);
 void bfin_gpio_irq_free(unsigned gpio);
-int bfin_gpio_direction_input(unsigned gpio);
-int bfin_gpio_direction_output(unsigned gpio, int value);
-int bfin_gpio_get_value(unsigned gpio);
-void bfin_gpio_set_value(unsigned gpio, int value);
+void bfin_gpio_irq_prepare(unsigned gpio);
+
+static inline int irq_to_gpio(unsigned irq)
+{
+	return irq - GPIO_IRQ_BASE;
+}
+#endif /* CONFIG_PINCTRL */
 
 #include <asm/irq.h>
 #include <asm/errno.h>
 
-#ifdef CONFIG_GPIOLIB
 #include <asm-generic/gpio.h>		/* cansleep wrappers */
 
 static inline int gpio_get_value(unsigned int gpio)
 {
-	if (gpio < MAX_BLACKFIN_GPIOS)
-		return bfin_gpio_get_value(gpio);
-	else
-		return __gpio_get_value(gpio);
+	return __gpio_get_value(gpio);
 }
 
 static inline void gpio_set_value(unsigned int gpio, int value)
 {
-	if (gpio < MAX_BLACKFIN_GPIOS)
-		bfin_gpio_set_value(gpio, value);
-	else
-		__gpio_set_value(gpio, value);
+	__gpio_set_value(gpio, value);
 }
 
 static inline int gpio_cansleep(unsigned int gpio)
@@ -219,113 +209,6 @@ static inline int gpio_to_irq(unsigned gpio)
 {
 	return __gpio_to_irq(gpio);
 }
-
-#else /* !CONFIG_GPIOLIB */
-
-static inline int gpio_request(unsigned gpio, const char *label)
-{
-	return bfin_gpio_request(gpio, label);
-}
-
-static inline void gpio_free(unsigned gpio)
-{
-	return bfin_gpio_free(gpio);
-}
-
-static inline int gpio_direction_input(unsigned gpio)
-{
-	return bfin_gpio_direction_input(gpio);
-}
-
-static inline int gpio_direction_output(unsigned gpio, int value)
-{
-	return bfin_gpio_direction_output(gpio, value);
-}
-
-static inline int gpio_set_debounce(unsigned gpio, unsigned debounce)
-{
-	return -EINVAL;
-}
-
-static inline int gpio_request_one(unsigned gpio, unsigned long flags, const char *label)
-{
-	int err;
-
-	err = bfin_gpio_request(gpio, label);
-	if (err)
-		return err;
-
-	if (flags & GPIOF_DIR_IN)
-		err = bfin_gpio_direction_input(gpio);
-	else
-		err = bfin_gpio_direction_output(gpio,
-			(flags & GPIOF_INIT_HIGH) ? 1 : 0);
-
-	if (err)
-		bfin_gpio_free(gpio);
-
-	return err;
-}
-
-static inline int gpio_request_array(const struct gpio *array, size_t num)
-{
-	int i, err;
-
-	for (i = 0; i < num; i++, array++) {
-		err = gpio_request_one(array->gpio, array->flags, array->label);
-		if (err)
-			goto err_free;
-	}
-	return 0;
-
-err_free:
-	while (i--)
-		bfin_gpio_free((--array)->gpio);
-	return err;
-}
-
-static inline void gpio_free_array(const struct gpio *array, size_t num)
-{
-	while (num--)
-		bfin_gpio_free((array++)->gpio);
-}
-
-static inline int __gpio_get_value(unsigned gpio)
-{
-	return bfin_gpio_get_value(gpio);
-}
-
-static inline void __gpio_set_value(unsigned gpio, int value)
-{
-	return bfin_gpio_set_value(gpio, value);
-}
-
-static inline int gpio_get_value(unsigned gpio)
-{
-	return __gpio_get_value(gpio);
-}
-
-static inline void gpio_set_value(unsigned gpio, int value)
-{
-	return __gpio_set_value(gpio, value);
-}
-
-static inline int gpio_to_irq(unsigned gpio)
-{
-	if (likely(gpio < MAX_BLACKFIN_GPIOS))
-		return gpio + GPIO_IRQ_BASE;
-
-	return -EINVAL;
-}
-
-#include <asm-generic/gpio.h>		/* cansleep wrappers */
-#endif	/* !CONFIG_GPIOLIB */
-
-static inline int irq_to_gpio(unsigned irq)
-{
-	return (irq - GPIO_IRQ_BASE);
-}
-
 #endif /* __ASSEMBLY__ */
 
 #endif /* __ARCH_BLACKFIN_GPIO_H__ */
diff --git a/arch/blackfin/include/asm/irq.h b/arch/blackfin/include/asm/irq.h
index 4ae1144a4578..2fd04f10cc26 100644
--- a/arch/blackfin/include/asm/irq.h
+++ b/arch/blackfin/include/asm/irq.h
@@ -23,8 +23,7 @@
 /*
  * pm save bfin pint registers
  */
-struct bfin_pm_pint_save {
-	u32 mask_set;
+struct adi_pm_pint_save {
 	u32 assign;
 	u32 edge_set;
 	u32 invert_set;
diff --git a/arch/blackfin/include/asm/irq_handler.h b/arch/blackfin/include/asm/irq_handler.h
index 4fbf83575db1..4b2a992794d7 100644
--- a/arch/blackfin/include/asm/irq_handler.h
+++ b/arch/blackfin/include/asm/irq_handler.h
@@ -12,11 +12,11 @@
 #include <mach/irq.h>
 
 /* init functions only */
-extern int __init init_arch_irq(void);
+extern int init_arch_irq(void);
 extern void init_exception_vectors(void);
-extern void __init program_IAR(void);
+extern void program_IAR(void);
 #ifdef init_mach_irq
-extern void __init init_mach_irq(void);
+extern void init_mach_irq(void);
 #else
 # define init_mach_irq()
 #endif
diff --git a/arch/blackfin/include/asm/portmux.h b/arch/blackfin/include/asm/portmux.h
index 9b1e2c37b324..7aa20436e799 100644
--- a/arch/blackfin/include/asm/portmux.h
+++ b/arch/blackfin/include/asm/portmux.h
@@ -17,14 +17,29 @@
 #define P_MAYSHARE	0x2000
 #define P_DONTCARE	0x1000
 
-
+#ifdef CONFIG_PINCTRL
+#include <asm/irq_handler.h>
+
+#define gpio_pint_regs bfin_pint_regs
+#define adi_internal_set_wake bfin_internal_set_wake
+
+#define peripheral_request(per, label) 0
+#define peripheral_free(per)
+#define peripheral_request_list(per, label) \
+	(pdev ? (IS_ERR(devm_pinctrl_get_select_default(&pdev->dev)) \
+	? -EINVAL : 0) : 0)
+#define peripheral_free_list(per)
+#else
 int peripheral_request(unsigned short per, const char *label);
 void peripheral_free(unsigned short per);
 int peripheral_request_list(const unsigned short per[], const char *label);
 void peripheral_free_list(const unsigned short per[]);
+#endif
 
-#include <asm/gpio.h>
+#include <linux/err.h>
+#include <linux/pinctrl/pinctrl.h>
 #include <mach/portmux.h>
+#include <linux/gpio.h>
 
 #ifndef P_SPORT2_TFS
 #define P_SPORT2_TFS P_UNDEF
diff --git a/arch/blackfin/kernel/Makefile b/arch/blackfin/kernel/Makefile
index 735f24e07425..703dc7cf2ecc 100644
--- a/arch/blackfin/kernel/Makefile
+++ b/arch/blackfin/kernel/Makefile
@@ -7,7 +7,7 @@ extra-y := vmlinux.lds
 obj-y := \
 	entry.o process.o bfin_ksyms.o ptrace.o setup.o signal.o \
 	sys_bfin.o traps.o irqchip.o dma-mapping.o flat.o \
-	fixed_code.o reboot.o bfin_gpio.o bfin_dma.o \
+	fixed_code.o reboot.o bfin_dma.o \
 	exception.o dumpstack.o
 
 ifeq ($(CONFIG_GENERIC_CLOCKEVENTS),y)
@@ -16,6 +16,7 @@ else
     obj-y += time.o
 endif
 
+obj-$(CONFIG_GPIO_ADI)               += bfin_gpio.o
 obj-$(CONFIG_DYNAMIC_FTRACE)         += ftrace.o
 obj-$(CONFIG_FUNCTION_TRACER)        += ftrace-entry.o
 obj-$(CONFIG_FUNCTION_GRAPH_TRACER)  += ftrace.o
diff --git a/arch/blackfin/kernel/bfin_gpio.c b/arch/blackfin/kernel/bfin_gpio.c
index 780d27db1257..a017359c1826 100644
--- a/arch/blackfin/kernel/bfin_gpio.c
+++ b/arch/blackfin/kernel/bfin_gpio.c
@@ -11,11 +11,8 @@
 #include <linux/err.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
-#include <asm/blackfin.h>
-#include <asm/gpio.h>
-#include <asm/portmux.h>
+#include <linux/gpio.h>
 #include <linux/irq.h>
-#include <asm/irq_handler.h>
 
 #if ANOMALY_05000311 || ANOMALY_05000323
 enum {
@@ -58,19 +55,6 @@ static struct gpio_port_t * const gpio_array[] = {
 	(struct gpio_port_t *) FIO0_FLAG_D,
 	(struct gpio_port_t *) FIO1_FLAG_D,
 	(struct gpio_port_t *) FIO2_FLAG_D,
-#elif defined(CONFIG_BF54x) || defined(CONFIG_BF60x) 
-	(struct gpio_port_t *)PORTA_FER,
-	(struct gpio_port_t *)PORTB_FER,
-	(struct gpio_port_t *)PORTC_FER,
-	(struct gpio_port_t *)PORTD_FER,
-	(struct gpio_port_t *)PORTE_FER,
-	(struct gpio_port_t *)PORTF_FER,
-	(struct gpio_port_t *)PORTG_FER,
-# if defined(CONFIG_BF54x)
-	(struct gpio_port_t *)PORTH_FER,
-	(struct gpio_port_t *)PORTI_FER,
-	(struct gpio_port_t *)PORTJ_FER,
-# endif
 #else
 # error no gpio arrays defined
 #endif
@@ -169,12 +153,6 @@ DECLARE_RESERVED_MAP(gpio_irq, GPIO_BANK_NUM);
 
 inline int check_gpio(unsigned gpio)
 {
-#if defined(CONFIG_BF54x)
-	if (gpio == GPIO_PB15 || gpio == GPIO_PC14 || gpio == GPIO_PC15
-	    || gpio == GPIO_PH14 || gpio == GPIO_PH15
-	    || gpio == GPIO_PJ14 || gpio == GPIO_PJ15)
-		return -EINVAL;
-#endif
 	if (gpio >= MAX_BLACKFIN_GPIOS)
 		return -EINVAL;
 	return 0;
@@ -212,12 +190,6 @@ static void port_setup(unsigned gpio, unsigned short usage)
 	else
 		*port_fer[gpio_bank(gpio)] |= gpio_bit(gpio);
 	SSYNC();
-#elif defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
-	if (usage == GPIO_USAGE)
-		gpio_array[gpio_bank(gpio)]->port_fer &= ~gpio_bit(gpio);
-	else
-		gpio_array[gpio_bank(gpio)]->port_fer |= gpio_bit(gpio);
-	SSYNC();
 #endif
 }
 
@@ -306,31 +278,6 @@ static void portmux_setup(unsigned short per)
 
 	bfin_write_PORT_MUX(pmux);
 }
-#elif defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
-inline void portmux_setup(unsigned short per)
-{
-	u16 ident = P_IDENT(per);
-	u16 function = P_FUNCT2MUX(per);
-	u32 pmux;
-
-	pmux = gpio_array[gpio_bank(ident)]->port_mux;
-
-	pmux &= ~(0x3 << (2 * gpio_sub_n(ident)));
-	pmux |= (function & 0x3) << (2 * gpio_sub_n(ident));
-
-	gpio_array[gpio_bank(ident)]->port_mux = pmux;
-}
-
-inline u16 get_portmux(unsigned short per)
-{
-	u16 ident = P_IDENT(per);
-	u32 pmux = gpio_array[gpio_bank(ident)]->port_mux;
-	return (pmux >> (2 * gpio_sub_n(ident)) & 0x3);
-}
-static int portmux_group_check(unsigned short per)
-{
-	return 0;
-}
 #elif defined(CONFIG_BF52x) || defined(CONFIG_BF51x)
 static int portmux_group_check(unsigned short per)
 {
@@ -384,7 +331,6 @@ static int portmux_group_check(unsigned short per)
 }
 #endif
 
-#if !(defined(CONFIG_BF54x) || defined(CONFIG_BF60x))
 /***********************************************************
 *
 * FUNCTIONS: Blackfin General Purpose Ports Access Functions
@@ -577,7 +523,7 @@ static const unsigned int sic_iwr_irqs[] = {
 *************************************************************
 * MODIFICATION HISTORY :
 **************************************************************/
-int gpio_pm_wakeup_ctrl(unsigned gpio, unsigned ctrl)
+int bfin_gpio_pm_wakeup_ctrl(unsigned gpio, unsigned ctrl)
 {
 	unsigned long flags;
 
@@ -596,7 +542,7 @@ int gpio_pm_wakeup_ctrl(unsigned gpio, unsigned ctrl)
 	return 0;
 }
 
-int bfin_pm_standby_ctrl(unsigned ctrl)
+int bfin_gpio_pm_standby_ctrl(unsigned ctrl)
 {
 	u16 bank, mask, i;
 
@@ -687,53 +633,6 @@ void bfin_gpio_pm_hibernate_restore(void)
 
 
 #endif
-#else /* CONFIG_BF54x || CONFIG_BF60x */
-#ifdef CONFIG_PM
-
-int bfin_pm_standby_ctrl(unsigned ctrl)
-{
-	return 0;
-}
-
-void bfin_gpio_pm_hibernate_suspend(void)
-{
-	int i, bank;
-
-	for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) {
-		bank = gpio_bank(i);
-
-		gpio_bank_saved[bank].fer = gpio_array[bank]->port_fer;
-		gpio_bank_saved[bank].mux = gpio_array[bank]->port_mux;
-		gpio_bank_saved[bank].data = gpio_array[bank]->data;
-		gpio_bank_saved[bank].inen = gpio_array[bank]->inen;
-		gpio_bank_saved[bank].dir = gpio_array[bank]->dir_set;
-	}
-}
-
-void bfin_gpio_pm_hibernate_restore(void)
-{
-	int i, bank;
-
-	for (i = 0; i < MAX_BLACKFIN_GPIOS; i += GPIO_BANKSIZE) {
-		bank = gpio_bank(i);
-
-		gpio_array[bank]->port_mux = gpio_bank_saved[bank].mux;
-		gpio_array[bank]->port_fer = gpio_bank_saved[bank].fer;
-		gpio_array[bank]->inen = gpio_bank_saved[bank].inen;
-		gpio_array[bank]->data_set = gpio_bank_saved[bank].data
-						& gpio_bank_saved[bank].dir;
-		gpio_array[bank]->dir_set = gpio_bank_saved[bank].dir;
-	}
-}
-#endif
-
-unsigned short get_gpio_dir(unsigned gpio)
-{
-	return (0x01 & (gpio_array[gpio_bank(gpio)]->dir_clear >> gpio_sub_n(gpio)));
-}
-EXPORT_SYMBOL(get_gpio_dir);
-
-#endif /* CONFIG_BF54x || CONFIG_BF60x */
 
 /***********************************************************
 *
@@ -790,11 +689,7 @@ int peripheral_request(unsigned short per, const char *label)
 		 * be requested and used by several drivers
 		 */
 
-#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
-		if (!((per & P_MAYSHARE) && get_portmux(per) == P_FUNCT2MUX(per))) {
-#else
 		if (!(per & P_MAYSHARE)) {
-#endif
 			/*
 			 * Allow that the identical pin function can
 			 * be requested from the same driver twice
@@ -943,12 +838,9 @@ int bfin_gpio_request(unsigned gpio, const char *label)
 	if (unlikely(is_reserved(gpio_irq, gpio, 1))) {
 		printk(KERN_NOTICE "bfin-gpio: GPIO %d is already reserved as gpio-irq!"
 		       " (Documentation/blackfin/bfin-gpio-notes.txt)\n", gpio);
-	}
-#if !(defined(CONFIG_BF54x) || defined(CONFIG_BF60x))
-	else {	/* Reset POLAR setting when acquiring a gpio for the first time */
+	} else {	/* Reset POLAR setting when acquiring a gpio for the first time */
 		set_gpio_polar(gpio, 0);
 	}
-#endif
 
 	reserve(gpio, gpio);
 	set_label(gpio, label);
@@ -1117,11 +1009,7 @@ void bfin_gpio_irq_free(unsigned gpio)
 
 static inline void __bfin_gpio_direction_input(unsigned gpio)
 {
-#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
-	gpio_array[gpio_bank(gpio)]->dir_clear = gpio_bit(gpio);
-#else
 	gpio_array[gpio_bank(gpio)]->dir &= ~gpio_bit(gpio);
-#endif
 	gpio_array[gpio_bank(gpio)]->inen |= gpio_bit(gpio);
 }
 
@@ -1145,17 +1033,7 @@ EXPORT_SYMBOL(bfin_gpio_direction_input);
 
 void bfin_gpio_irq_prepare(unsigned gpio)
 {
-#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
-	unsigned long flags;
-#endif
-
 	port_setup(gpio, GPIO_USAGE);
-
-#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
-	flags = hard_local_irq_save();
-	__bfin_gpio_direction_input(gpio);
-	hard_local_irq_restore(flags);
-#endif
 }
 
 void bfin_gpio_set_value(unsigned gpio, int arg)
@@ -1180,11 +1058,7 @@ int bfin_gpio_direction_output(unsigned gpio, int value)
 
 	gpio_array[gpio_bank(gpio)]->inen &= ~gpio_bit(gpio);
 	gpio_set_value(gpio, value);
-#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
-	gpio_array[gpio_bank(gpio)]->dir_set = gpio_bit(gpio);
-#else
 	gpio_array[gpio_bank(gpio)]->dir |= gpio_bit(gpio);
-#endif
 
 	AWA_DUMMY_READ(dir);
 	hard_local_irq_restore(flags);
@@ -1195,9 +1069,6 @@ EXPORT_SYMBOL(bfin_gpio_direction_output);
 
 int bfin_gpio_get_value(unsigned gpio)
 {
-#if defined(CONFIG_BF54x) || defined(CONFIG_BF60x)
-	return (1 & (gpio_array[gpio_bank(gpio)]->data >> gpio_sub_n(gpio)));
-#else
 	unsigned long flags;
 
 	if (unlikely(get_gpio_edge(gpio))) {
@@ -1210,7 +1081,6 @@ int bfin_gpio_get_value(unsigned gpio)
 		return ret;
 	} else
 		return get_gpio_data(gpio);
-#endif
 }
 EXPORT_SYMBOL(bfin_gpio_get_value);
 
diff --git a/arch/blackfin/mach-bf548/Kconfig b/arch/blackfin/mach-bf548/Kconfig
index 94acb586832e..334ec7b12188 100644
--- a/arch/blackfin/mach-bf548/Kconfig
+++ b/arch/blackfin/mach-bf548/Kconfig
@@ -377,40 +377,6 @@ config IRQ_PINT3
 
 endmenu
 
-comment "Pin Interrupt to Port Assignment"
-menu "Assignment"
-
-config PINTx_REASSIGN
-	bool "Reprogram PINT Assignment"
-	default y
-	help
-	  The interrupt assignment registers controls the pin-to-interrupt
-	  assignment in a byte-wide manner. Each option allows you to select
-	  a set of pins (High/Low Byte) of an specific Port being mapped
-	  to one of the four PIN Interrupts IRQ_PINTx.
-
-	  You shouldn't change any of these unless you know exactly what you're doing.
-	  Please consult the Blackfin BF54x Processor Hardware Reference Manual.
-
-config PINT0_ASSIGN
-	hex "PINT0_ASSIGN"
-	depends on PINTx_REASSIGN
-	default 0x00000101
-config PINT1_ASSIGN
-	hex "PINT1_ASSIGN"
-	depends on PINTx_REASSIGN
-	default 0x01010000
-config PINT2_ASSIGN
-	hex "PINT2_ASSIGN"
-	depends on PINTx_REASSIGN
-	default 0x07000101
-config PINT3_ASSIGN
-	hex "PINT3_ASSIGN"
-	depends on PINTx_REASSIGN
-	default 0x02020303
-
-endmenu
-
 endmenu
 
 endif
diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c
index 372eb54944ef..984b3f9984cd 100644
--- a/arch/blackfin/mach-bf548/boards/ezkit.c
+++ b/arch/blackfin/mach-bf548/boards/ezkit.c
@@ -17,6 +17,9 @@
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
 #include <linux/usb/musb.h>
+#include <linux/pinctrl/machine.h>
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/platform_data/pinctrl-adi2.h>
 #include <asm/bfin5xx_spi.h>
 #include <asm/dma.h>
 #include <asm/gpio.h>
@@ -1058,6 +1061,411 @@ static const struct ad7877_platform_data bfin_ad7877_ts_info = {
 };
 #endif
 
+#ifdef CONFIG_PINCTRL_ADI2
+
+# define ADI_PINT_DEVNAME "adi-gpio-pint"
+# define ADI_GPIO_DEVNAME "adi-gpio"
+# define ADI_PINCTRL_DEVNAME "pinctrl-adi2"
+
+static struct platform_device bfin_pinctrl_device = {
+	.name = ADI_PINCTRL_DEVNAME,
+	.id = 0,
+};
+
+static struct resource bfin_pint0_resources[] = {
+	{
+		.start = PINT0_MASK_SET,
+		.end = PINT0_LATCH + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PINT0,
+		.end = IRQ_PINT0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device bfin_pint0_device = {
+	.name = ADI_PINT_DEVNAME,
+	.id = 0,
+	.num_resources = ARRAY_SIZE(bfin_pint0_resources),
+	.resource = bfin_pint0_resources,
+};
+
+static struct resource bfin_pint1_resources[] = {
+	{
+		.start = PINT1_MASK_SET,
+		.end = PINT1_LATCH + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PINT1,
+		.end = IRQ_PINT1,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device bfin_pint1_device = {
+	.name = ADI_PINT_DEVNAME,
+	.id = 1,
+	.num_resources = ARRAY_SIZE(bfin_pint1_resources),
+	.resource = bfin_pint1_resources,
+};
+
+static struct resource bfin_pint2_resources[] = {
+	{
+		.start = PINT2_MASK_SET,
+		.end = PINT2_LATCH + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PINT2,
+		.end = IRQ_PINT2,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device bfin_pint2_device = {
+	.name = ADI_PINT_DEVNAME,
+	.id = 2,
+	.num_resources = ARRAY_SIZE(bfin_pint2_resources),
+	.resource = bfin_pint2_resources,
+};
+
+static struct resource bfin_pint3_resources[] = {
+	{
+		.start = PINT3_MASK_SET,
+		.end = PINT3_LATCH + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PINT3,
+		.end = IRQ_PINT3,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device bfin_pint3_device = {
+	.name = ADI_PINT_DEVNAME,
+	.id = 3,
+	.num_resources = ARRAY_SIZE(bfin_pint3_resources),
+	.resource = bfin_pint3_resources,
+};
+
+static struct resource bfin_gpa_resources[] = {
+	{
+		.start = PORTA_FER,
+		.end = PORTA_MUX + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{	/* optional */
+		.start = IRQ_PA0,
+		.end = IRQ_PA0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct adi_pinctrl_gpio_platform_data bfin_gpa_pdata = {
+	.port_gpio_base	= GPIO_PA0,	/* Optional */
+	.port_pin_base	= GPIO_PA0,
+	.port_width	= GPIO_BANKSIZE,
+	.pint_id	= 0,		/* PINT0 */
+	.pint_assign	= true,		/* PINT upper 16 bit */
+	.pint_map	= 0,		/* mapping mask in PINT */
+};
+
+static struct platform_device bfin_gpa_device = {
+	.name = ADI_GPIO_DEVNAME,
+	.id = 0,
+	.num_resources = ARRAY_SIZE(bfin_gpa_resources),
+	.resource = bfin_gpa_resources,
+	.dev = {
+		.platform_data = &bfin_gpa_pdata, /* Passed to driver */
+	},
+};
+
+static struct resource bfin_gpb_resources[] = {
+	{
+		.start = PORTB_FER,
+		.end = PORTB_MUX + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PB0,
+		.end = IRQ_PB0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct adi_pinctrl_gpio_platform_data bfin_gpb_pdata = {
+	.port_gpio_base	= GPIO_PB0,
+	.port_pin_base	= GPIO_PB0,
+	.port_width	= 15,
+	.pint_id	= 0,
+	.pint_assign	= true,
+	.pint_map	= 1,
+};
+
+static struct platform_device bfin_gpb_device = {
+	.name = ADI_GPIO_DEVNAME,
+	.id = 1,
+	.num_resources = ARRAY_SIZE(bfin_gpb_resources),
+	.resource = bfin_gpb_resources,
+	.dev = {
+		.platform_data = &bfin_gpb_pdata, /* Passed to driver */
+	},
+};
+
+static struct resource bfin_gpc_resources[] = {
+	{
+		.start = PORTC_FER,
+		.end = PORTC_MUX + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PC0,
+		.end = IRQ_PC0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct adi_pinctrl_gpio_platform_data bfin_gpc_pdata = {
+	.port_gpio_base	= GPIO_PC0,
+	.port_pin_base	= GPIO_PC0,
+	.port_width	= 14,
+	.pint_id	= 2,
+	.pint_assign	= true,
+	.pint_map	= 0,
+};
+
+static struct platform_device bfin_gpc_device = {
+	.name = ADI_GPIO_DEVNAME,
+	.id = 2,
+	.num_resources = ARRAY_SIZE(bfin_gpc_resources),
+	.resource = bfin_gpc_resources,
+	.dev = {
+		.platform_data = &bfin_gpc_pdata, /* Passed to driver */
+	},
+};
+
+static struct resource bfin_gpd_resources[] = {
+	{
+		.start = PORTD_FER,
+		.end = PORTD_MUX + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PD0,
+		.end = IRQ_PD0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct adi_pinctrl_gpio_platform_data bfin_gpd_pdata = {
+	.port_gpio_base	= GPIO_PD0,
+	.port_pin_base	= GPIO_PD0,
+	.port_width	= GPIO_BANKSIZE,
+	.pint_id	= 2,
+	.pint_assign	= false,
+	.pint_map	= 1,
+};
+
+static struct platform_device bfin_gpd_device = {
+	.name = ADI_GPIO_DEVNAME,
+	.id = 3,
+	.num_resources = ARRAY_SIZE(bfin_gpd_resources),
+	.resource = bfin_gpd_resources,
+	.dev = {
+		.platform_data = &bfin_gpd_pdata, /* Passed to driver */
+	},
+};
+
+static struct resource bfin_gpe_resources[] = {
+	{
+		.start = PORTE_FER,
+		.end = PORTE_MUX + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PE0,
+		.end = IRQ_PE0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct adi_pinctrl_gpio_platform_data bfin_gpe_pdata = {
+	.port_gpio_base	= GPIO_PE0,
+	.port_pin_base	= GPIO_PE0,
+	.port_width	= GPIO_BANKSIZE,
+	.pint_id	= 3,
+	.pint_assign	= true,
+	.pint_map	= 2,
+};
+
+static struct platform_device bfin_gpe_device = {
+	.name = ADI_GPIO_DEVNAME,
+	.id = 4,
+	.num_resources = ARRAY_SIZE(bfin_gpe_resources),
+	.resource = bfin_gpe_resources,
+	.dev = {
+		.platform_data = &bfin_gpe_pdata, /* Passed to driver */
+	},
+};
+
+static struct resource bfin_gpf_resources[] = {
+	{
+		.start = PORTF_FER,
+		.end = PORTF_MUX + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PF0,
+		.end = IRQ_PF0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct adi_pinctrl_gpio_platform_data bfin_gpf_pdata = {
+	.port_gpio_base	= GPIO_PF0,
+	.port_pin_base	= GPIO_PF0,
+	.port_width	= GPIO_BANKSIZE,
+	.pint_id	= 3,
+	.pint_assign	= false,
+	.pint_map	= 3,
+};
+
+static struct platform_device bfin_gpf_device = {
+	.name = ADI_GPIO_DEVNAME,
+	.id = 5,
+	.num_resources = ARRAY_SIZE(bfin_gpf_resources),
+	.resource = bfin_gpf_resources,
+	.dev = {
+		.platform_data = &bfin_gpf_pdata, /* Passed to driver */
+	},
+};
+
+static struct resource bfin_gpg_resources[] = {
+	{
+		.start = PORTG_FER,
+		.end = PORTG_MUX + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PG0,
+		.end = IRQ_PG0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct adi_pinctrl_gpio_platform_data bfin_gpg_pdata = {
+	.port_gpio_base	= GPIO_PG0,
+	.port_pin_base	= GPIO_PG0,
+	.port_width	= GPIO_BANKSIZE,
+	.pint_id	= -1,
+};
+
+static struct platform_device bfin_gpg_device = {
+	.name = ADI_GPIO_DEVNAME,
+	.id = 6,
+	.num_resources = ARRAY_SIZE(bfin_gpg_resources),
+	.resource = bfin_gpg_resources,
+	.dev = {
+		.platform_data = &bfin_gpg_pdata, /* Passed to driver */
+	},
+};
+
+static struct resource bfin_gph_resources[] = {
+	{
+		.start = PORTH_FER,
+		.end = PORTH_MUX + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PH0,
+		.end = IRQ_PH0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct adi_pinctrl_gpio_platform_data bfin_gph_pdata = {
+	.port_gpio_base	= GPIO_PH0,
+	.port_pin_base	= GPIO_PH0,
+	.port_width	= 14,
+	.pint_id	= -1,
+};
+
+static struct platform_device bfin_gph_device = {
+	.name = ADI_GPIO_DEVNAME,
+	.id = 7,
+	.num_resources = ARRAY_SIZE(bfin_gph_resources),
+	.resource = bfin_gph_resources,
+	.dev = {
+		.platform_data = &bfin_gph_pdata, /* Passed to driver */
+	},
+};
+
+static struct resource bfin_gpi_resources[] = {
+	{
+		.start = PORTI_FER,
+		.end = PORTI_MUX + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PI0,
+		.end = IRQ_PI0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct adi_pinctrl_gpio_platform_data bfin_gpi_pdata = {
+	.port_gpio_base	= GPIO_PI0,
+	.port_pin_base	= GPIO_PI0,
+	.port_width	= GPIO_BANKSIZE,
+	.pint_id	= -1,
+};
+
+static struct platform_device bfin_gpi_device = {
+	.name = ADI_GPIO_DEVNAME,
+	.id = 8,
+	.num_resources = ARRAY_SIZE(bfin_gpi_resources),
+	.resource = bfin_gpi_resources,
+	.dev = {
+		.platform_data = &bfin_gpi_pdata, /* Passed to driver */
+	},
+};
+
+static struct resource bfin_gpj_resources[] = {
+	{
+		.start = PORTJ_FER,
+		.end = PORTJ_MUX + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PJ0,
+		.end = IRQ_PJ0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct adi_pinctrl_gpio_platform_data bfin_gpj_pdata = {
+	.port_gpio_base	= GPIO_PJ0,
+	.port_pin_base	= GPIO_PJ0,
+	.port_width	= 14,
+	.pint_id	= -1,
+};
+
+static struct platform_device bfin_gpj_device = {
+	.name = ADI_GPIO_DEVNAME,
+	.id = 9,
+	.num_resources = ARRAY_SIZE(bfin_gpj_resources),
+	.resource = bfin_gpj_resources,
+	.dev = {
+		.platform_data = &bfin_gpj_pdata, /* Passed to driver */
+	},
+};
+
+#endif
+
 static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #if defined(CONFIG_MTD_M25P80) \
 	|| defined(CONFIG_MTD_M25P80_MODULE)
@@ -1066,7 +1474,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 		.modalias = "m25p80", /* Name of spi_driver for this device */
 		.max_speed_hz = 25000000,     /* max spi clock (SCK) speed in HZ */
 		.bus_num = 0, /* Framework bus number */
-		.chip_select = 1, /* SPI_SSEL1*/
+		.chip_select = MAX_CTRL_CS + GPIO_PE4, /* SPI_SSEL1*/
 		.platform_data = &bfin_spi_flash_data,
 		.controller_data = &spi_flash_chip_info,
 		.mode = SPI_MODE_3,
@@ -1078,7 +1486,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 		.modalias = "ad183x",
 		.max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
 		.bus_num = 1,
-		.chip_select = 4,
+		.chip_select = MAX_CTRL_CS + GPIO_PG6, /* SPI_SSEL2 */
 	},
 #endif
 #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
@@ -1088,7 +1496,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 		.irq			= IRQ_PB4,	/* old boards (<=Rev 1.3) use IRQ_PJ11 */
 		.max_speed_hz		= 12500000,     /* max spi clock (SCK) speed in HZ */
 		.bus_num		= 0,
-		.chip_select  		= 2,
+		.chip_select		= MAX_CTRL_CS + GPIO_PE5, /* SPI_SSEL2 */
 	},
 #endif
 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
@@ -1096,7 +1504,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 		.modalias = "spidev",
 		.max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
 		.bus_num = 0,
-		.chip_select = 1,
+		.chip_select = MAX_CTRL_CS + GPIO_PE4, /* SPI_SSEL1 */
 	},
 #endif
 #if defined(CONFIG_INPUT_ADXL34X_SPI) || defined(CONFIG_INPUT_ADXL34X_SPI_MODULE)
@@ -1106,7 +1514,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 		.irq			= IRQ_PC5,
 		.max_speed_hz		= 5000000,     /* max spi clock (SCK) speed in HZ */
 		.bus_num		= 1,
-		.chip_select  		= 2,
+		.chip_select		= MAX_CTRL_CS + GPIO_PG6, /* SPI_SSEL2 */
 		.mode = SPI_MODE_3,
 	},
 #endif
@@ -1152,7 +1560,7 @@ static struct resource bfin_spi1_resource[] = {
 
 /* SPI controller data */
 static struct bfin5xx_spi_master bf54x_spi_master_info0 = {
-	.num_chipselect = 4,
+	.num_chipselect = MAX_CTRL_CS + MAX_BLACKFIN_GPIOS,
 	.enable_dma = 1,  /* master has the ability to do dma transfer */
 	.pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
 };
@@ -1168,7 +1576,7 @@ static struct platform_device bf54x_spi_master0 = {
 };
 
 static struct bfin5xx_spi_master bf54x_spi_master_info1 = {
-	.num_chipselect = 4,
+	.num_chipselect = MAX_CTRL_CS + MAX_BLACKFIN_GPIOS,
 	.enable_dma = 1,  /* master has the ability to do dma transfer */
 	.pin_req = {P_SPI1_SCK, P_SPI1_MISO, P_SPI1_MOSI, 0},
 };
@@ -1508,6 +1916,23 @@ static struct platform_device bfin_ac97 = {
 static struct platform_device *ezkit_devices[] __initdata = {
 
 	&bfin_dpmc,
+#if defined(CONFIG_PINCTRL_ADI2)
+	&bfin_pinctrl_device,
+	&bfin_pint0_device,
+	&bfin_pint1_device,
+	&bfin_pint2_device,
+	&bfin_pint3_device,
+	&bfin_gpa_device,
+	&bfin_gpb_device,
+	&bfin_gpc_device,
+	&bfin_gpd_device,
+	&bfin_gpe_device,
+	&bfin_gpf_device,
+	&bfin_gpg_device,
+	&bfin_gph_device,
+	&bfin_gpi_device,
+	&bfin_gpj_device,
+#endif
 
 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 	&rtc_device,
@@ -1644,10 +2069,66 @@ static struct platform_device *ezkit_devices[] __initdata = {
 #endif
 };
 
+/* Pin control settings */
+static struct pinctrl_map __initdata bfin_pinmux_map[] = {
+	/* per-device maps */
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-uart.0",  "pinctrl-adi2.0", NULL, "uart0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-uart.1",  "pinctrl-adi2.0", NULL, "uart1"),
+#ifdef CONFIG_BFIN_UART1_CTSRTS
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-uart.1",  "pinctrl-adi2.0", NULL, "uart1_ctsrts"),
+#endif
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-uart.2",  "pinctrl-adi2.0", NULL, "uart2"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-uart.3",  "pinctrl-adi2.0", NULL, "uart3"),
+#ifdef CONFIG_BFIN_UART3_CTSRTS
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-uart.3",  "pinctrl-adi2.0", NULL, "uart3_ctsrts"),
+#endif
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin_sir.0",  "pinctrl-adi2.0", NULL, "uart0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin_sir.1",  "pinctrl-adi2.0", NULL, "uart1"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin_sir.2",  "pinctrl-adi2.0", NULL, "uart2"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin_sir.3",  "pinctrl-adi2.0", NULL, "uart3"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-sdh.0",  "pinctrl-adi2.0", NULL, "rsi0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-spi.0",  "pinctrl-adi2.0", NULL, "spi0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-spi.1",  "pinctrl-adi2.0", NULL, "spi1"),
+	PIN_MAP_MUX_GROUP_DEFAULT("i2c-bfin-twi.0",  "pinctrl-adi2.0", NULL, "twi0"),
+#if !defined(CONFIG_BF542)	/* The BF542 only has 1 TWI */
+	PIN_MAP_MUX_GROUP_DEFAULT("i2c-bfin-twi.1",  "pinctrl-adi2.0", NULL, "twi1"),
+#endif
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-rotary",  "pinctrl-adi2.0", NULL, "rotary"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin_can.0",  "pinctrl-adi2.0", NULL, "can0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin_can.1",  "pinctrl-adi2.0", NULL, "can1"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bf54x-lq043",  "pinctrl-adi2.0", NULL, "ppi0_24b"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-i2s.0",  "pinctrl-adi2.0", NULL, "sport0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-tdm.0",  "pinctrl-adi2.0", NULL, "sport0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-ac97.0",  "pinctrl-adi2.0", NULL, "sport0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-i2s.1",  "pinctrl-adi2.0", NULL, "sport1"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-tdm.1",  "pinctrl-adi2.0", NULL, "sport1"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-ac97.1",  "pinctrl-adi2.0", NULL, "sport1"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-i2s.2",  "pinctrl-adi2.0", NULL, "sport2"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-tdm.2",  "pinctrl-adi2.0", NULL, "sport2"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-ac97.2",  "pinctrl-adi2.0", NULL, "sport2"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-i2s.3",  "pinctrl-adi2.0", NULL, "sport3"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-tdm.3",  "pinctrl-adi2.0", NULL, "sport3"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-ac97.3",  "pinctrl-adi2.0", NULL, "sport3"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-sport-uart.0",  "pinctrl-adi2.0", NULL, "sport0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-sport-uart.1",  "pinctrl-adi2.0", NULL, "sport1"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-sport-uart.2",  "pinctrl-adi2.0", NULL, "sport2"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-sport-uart.3",  "pinctrl-adi2.0", NULL, "sport3"),
+	PIN_MAP_MUX_GROUP_DEFAULT("pata-bf54x",  "pinctrl-adi2.0", NULL, "atapi"),
+#ifdef CONFIG_BF548_ATAPI_ALTERNATIVE_PORT
+	PIN_MAP_MUX_GROUP_DEFAULT("pata-bf54x",  "pinctrl-adi2.0", NULL, "atapi_alter"),
+#endif
+	PIN_MAP_MUX_GROUP_DEFAULT("bf5xx-nand.0",  "pinctrl-adi2.0", NULL, "nfc0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bf54x-keys",  "pinctrl-adi2.0", NULL, "keys_4x4"),
+};
+
 static int __init ezkit_init(void)
 {
 	printk(KERN_INFO "%s(): registering device resources\n", __func__);
 
+	/* Initialize pinmuxing */
+	pinctrl_register_mappings(bfin_pinmux_map,
+				ARRAY_SIZE(bfin_pinmux_map));
+
 	i2c_register_board_info(0, bfin_i2c_board_info0,
 				ARRAY_SIZE(bfin_i2c_board_info0));
 #if !defined(CONFIG_BF542)	/* The BF542 only has 1 TWI */
diff --git a/arch/blackfin/mach-bf548/include/mach/gpio.h b/arch/blackfin/mach-bf548/include/mach/gpio.h
index be9edb28f96b..006da1edcf84 100644
--- a/arch/blackfin/mach-bf548/include/mach/gpio.h
+++ b/arch/blackfin/mach-bf548/include/mach/gpio.h
@@ -194,14 +194,6 @@ struct gpio_port_t {
 	unsigned int port_mux;
 };
 
-struct gpio_port_s {
-	unsigned short fer;
-	unsigned short data;
-	unsigned short dir;
-	unsigned short inen;
-	unsigned int mux;
-};
-
 #endif
 
 #include <mach-common/ports-a.h>
diff --git a/arch/blackfin/mach-bf548/include/mach/irq.h b/arch/blackfin/mach-bf548/include/mach/irq.h
index 10dc142c518d..cf7cb725cfa2 100644
--- a/arch/blackfin/mach-bf548/include/mach/irq.h
+++ b/arch/blackfin/mach-bf548/include/mach/irq.h
@@ -433,7 +433,7 @@
 #include <linux/types.h>
 
 /*
- * bfin pint registers layout
+ * gpio pint registers layout
  */
 struct bfin_pint_regs {
 	u32 mask_set;
diff --git a/arch/blackfin/mach-bf548/include/mach/portmux.h b/arch/blackfin/mach-bf548/include/mach/portmux.h
index e22246202730..d9f8632d7d09 100644
--- a/arch/blackfin/mach-bf548/include/mach/portmux.h
+++ b/arch/blackfin/mach-bf548/include/mach/portmux.h
@@ -7,8 +7,6 @@
 #ifndef _MACH_PORTMUX_H_
 #define _MACH_PORTMUX_H_
 
-#define MAX_RESOURCES	MAX_BLACKFIN_GPIOS
-
 #define P_SPORT2_TFS	(P_DEFINED | P_IDENT(GPIO_PA0) | P_FUNCT(0))
 #define P_SPORT2_DTSEC	(P_DEFINED | P_IDENT(GPIO_PA1) | P_FUNCT(0))
 #define P_SPORT2_DTPRI	(P_DEFINED | P_IDENT(GPIO_PA2) | P_FUNCT(0))
diff --git a/arch/blackfin/mach-bf609/Kconfig b/arch/blackfin/mach-bf609/Kconfig
index 2bcbf94b1edf..b0fca44110b0 100644
--- a/arch/blackfin/mach-bf609/Kconfig
+++ b/arch/blackfin/mach-bf609/Kconfig
@@ -9,48 +9,6 @@ source "arch/blackfin/mach-bf609/boards/Kconfig"
 
 menu "BF609 Specific Configuration"
 
-comment "Pin Interrupt to Port Assignment"
-menu "Assignment"
-
-config PINTx_REASSIGN
-	bool "Reprogram PINT Assignment"
-	default y
-	help
-	  The interrupt assignment registers controls the pin-to-interrupt
-	  assignment in a byte-wide manner. Each option allows you to select
-	  a set of pins (High/Low Byte) of an specific Port being mapped
-	  to one of the four PIN Interrupts IRQ_PINTx.
-
-	  You shouldn't change any of these unless you know exactly what you're doing.
-	  Please consult the Blackfin BF60x Processor Hardware Reference Manual.
-
-config PINT0_ASSIGN
-	hex "PINT0_ASSIGN"
-	depends on PINTx_REASSIGN
-	default 0x00000101
-config PINT1_ASSIGN
-	hex "PINT1_ASSIGN"
-	depends on PINTx_REASSIGN
-	default 0x00000101
-config PINT2_ASSIGN
-	hex "PINT2_ASSIGN"
-	depends on PINTx_REASSIGN
-	default 0x00000101
-config PINT3_ASSIGN
-	hex "PINT3_ASSIGN"
-	depends on PINTx_REASSIGN
-	default 0x00000101
-config PINT4_ASSIGN
-	hex "PINT3_ASSIGN"
-	depends on PINTx_REASSIGN
-	default 0x00000101
-config PINT5_ASSIGN
-	hex "PINT3_ASSIGN"
-	depends on PINTx_REASSIGN
-	default 0x00000101
-
-endmenu
-
 config SEC_IRQ_PRIORITY_LEVELS
 	int "SEC interrupt priority levels"
 	default 7
diff --git a/arch/blackfin/mach-bf609/boards/ezkit.c b/arch/blackfin/mach-bf609/boards/ezkit.c
index d56a55ad83a7..9da44b360426 100644
--- a/arch/blackfin/mach-bf609/boards/ezkit.c
+++ b/arch/blackfin/mach-bf609/boards/ezkit.c
@@ -17,6 +17,9 @@
 #include <linux/i2c.h>
 #include <linux/interrupt.h>
 #include <linux/usb/musb.h>
+#include <linux/pinctrl/machine.h>
+#include <linux/pinctrl/pinconf-generic.h>
+#include <linux/platform_data/pinctrl-adi2.h>
 #include <asm/bfin_spi3.h>
 #include <asm/dma.h>
 #include <asm/gpio.h>
@@ -106,8 +109,6 @@ static struct platform_device bfin_rotary_device = {
 #include <linux/stmmac.h>
 #include <linux/phy.h>
 
-static unsigned short pins[] = P_RMII0;
-
 static struct stmmac_mdio_bus_data phy_private_data = {
 	.phy_mask = 1,
 };
@@ -674,7 +675,7 @@ static struct mtd_partition ezkit_partitions[] = {
 	},
 };
 
-int bf609_nor_flash_init(struct platform_device *dev)
+int bf609_nor_flash_init(struct platform_device *pdev)
 {
 #define CONFIG_SMC_GCTL_VAL     0x00000010
 	const unsigned short pins[] = {
@@ -1319,6 +1320,367 @@ static const struct ad7877_platform_data bfin_ad7877_ts_info = {
 };
 #endif
 
+#ifdef CONFIG_PINCTRL_ADI2
+
+# define ADI_PINT_DEVNAME "adi-gpio-pint"
+# define ADI_GPIO_DEVNAME "adi-gpio"
+# define ADI_PINCTRL_DEVNAME "pinctrl-adi2"
+
+static struct platform_device bfin_pinctrl_device = {
+	.name = ADI_PINCTRL_DEVNAME,
+	.id = 0,
+};
+
+#ifdef CONFIG_PINCTRL_ADI2
+
+# define ADI_PINT_DEVNAME "adi-gpio-pint"
+# define ADI_GPIO_DEVNAME "adi-gpio"
+# define ADI_PINCTRL_DEVNAME "pinctrl-adi2"
+
+static struct platform_device bfin_pinctrl_device = {
+	.name = ADI_PINCTRL_DEVNAME,
+	.id = 0,
+};
+
+static struct resource bfin_pint0_resources[] = {
+	{
+		.start = PINT0_MASK_SET,
+		.end = PINT0_LATCH + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PINT0,
+		.end = IRQ_PINT0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device bfin_pint0_device = {
+	.name = ADI_PINT_DEVNAME,
+	.id = 0,
+	.num_resources = ARRAY_SIZE(bfin_pint0_resources),
+	.resource = bfin_pint0_resources,
+};
+
+static struct resource bfin_pint1_resources[] = {
+	{
+		.start = PINT1_MASK_SET,
+		.end = PINT1_LATCH + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PINT1,
+		.end = IRQ_PINT1,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device bfin_pint1_device = {
+	.name = ADI_PINT_DEVNAME,
+	.id = 1,
+	.num_resources = ARRAY_SIZE(bfin_pint1_resources),
+	.resource = bfin_pint1_resources,
+};
+
+static struct resource bfin_pint2_resources[] = {
+	{
+		.start = PINT2_MASK_SET,
+		.end = PINT2_LATCH + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PINT2,
+		.end = IRQ_PINT2,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device bfin_pint2_device = {
+	.name = ADI_PINT_DEVNAME,
+	.id = 2,
+	.num_resources = ARRAY_SIZE(bfin_pint2_resources),
+	.resource = bfin_pint2_resources,
+};
+
+static struct resource bfin_pint3_resources[] = {
+	{
+		.start = PINT3_MASK_SET,
+		.end = PINT3_LATCH + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PINT3,
+		.end = IRQ_PINT3,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device bfin_pint3_device = {
+	.name = ADI_PINT_DEVNAME,
+	.id = 3,
+	.num_resources = ARRAY_SIZE(bfin_pint3_resources),
+	.resource = bfin_pint3_resources,
+};
+
+static struct resource bfin_pint4_resources[] = {
+	{
+		.start = PINT4_MASK_SET,
+		.end = PINT4_LATCH + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PINT4,
+		.end = IRQ_PINT4,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device bfin_pint4_device = {
+	.name = ADI_PINT_DEVNAME,
+	.id = 4,
+	.num_resources = ARRAY_SIZE(bfin_pint4_resources),
+	.resource = bfin_pint4_resources,
+};
+
+static struct resource bfin_pint5_resources[] = {
+	{
+		.start = PINT5_MASK_SET,
+		.end = PINT5_LATCH + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PINT5,
+		.end = IRQ_PINT5,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct platform_device bfin_pint5_device = {
+	.name = ADI_PINT_DEVNAME,
+	.id = 5,
+	.num_resources = ARRAY_SIZE(bfin_pint5_resources),
+	.resource = bfin_pint5_resources,
+};
+
+static struct resource bfin_gpa_resources[] = {
+	{
+		.start = PORTA_FER,
+		.end = PORTA_MUX + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{	/* optional */
+		.start = IRQ_PA0,
+		.end = IRQ_PA0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct adi_pinctrl_gpio_platform_data bfin_gpa_pdata = {
+	.port_pin_base	= GPIO_PA0,
+	.port_width	= GPIO_BANKSIZE,
+	.pint_id	= 0,		/* PINT0 */
+	.pint_assign	= true,		/* PINT upper 16 bit */
+	.pint_map	= 0,		/* mapping mask in PINT */
+};
+
+static struct platform_device bfin_gpa_device = {
+	.name = ADI_GPIO_DEVNAME,
+	.id = 0,
+	.num_resources = ARRAY_SIZE(bfin_gpa_resources),
+	.resource = bfin_gpa_resources,
+	.dev = {
+		.platform_data = &bfin_gpa_pdata, /* Passed to driver */
+	},
+};
+
+static struct resource bfin_gpb_resources[] = {
+	{
+		.start = PORTB_FER,
+		.end = PORTB_MUX + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PB0,
+		.end = IRQ_PB0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct adi_pinctrl_gpio_platform_data bfin_gpb_pdata = {
+	.port_pin_base	= GPIO_PB0,
+	.port_width	= GPIO_BANKSIZE,
+	.pint_id	= 0,
+	.pint_assign	= false,
+	.pint_map	= 1,
+};
+
+static struct platform_device bfin_gpb_device = {
+	.name = ADI_GPIO_DEVNAME,
+	.id = 1,
+	.num_resources = ARRAY_SIZE(bfin_gpb_resources),
+	.resource = bfin_gpb_resources,
+	.dev = {
+		.platform_data = &bfin_gpb_pdata, /* Passed to driver */
+	},
+};
+
+static struct resource bfin_gpc_resources[] = {
+	{
+		.start = PORTC_FER,
+		.end = PORTC_MUX + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PC0,
+		.end = IRQ_PC0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct adi_pinctrl_gpio_platform_data bfin_gpc_pdata = {
+	.port_pin_base	= GPIO_PC0,
+	.port_width	= GPIO_BANKSIZE,
+	.pint_id	= 1,
+	.pint_assign	= false,
+	.pint_map	= 1,
+};
+
+static struct platform_device bfin_gpc_device = {
+	.name = ADI_GPIO_DEVNAME,
+	.id = 2,
+	.num_resources = ARRAY_SIZE(bfin_gpc_resources),
+	.resource = bfin_gpc_resources,
+	.dev = {
+		.platform_data = &bfin_gpc_pdata, /* Passed to driver */
+	},
+};
+
+static struct resource bfin_gpd_resources[] = {
+	{
+		.start = PORTD_FER,
+		.end = PORTD_MUX + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PD0,
+		.end = IRQ_PD0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct adi_pinctrl_gpio_platform_data bfin_gpd_pdata = {
+	.port_pin_base	= GPIO_PD0,
+	.port_width	= GPIO_BANKSIZE,
+	.pint_id	= 2,
+	.pint_assign	= false,
+	.pint_map	= 1,
+};
+
+static struct platform_device bfin_gpd_device = {
+	.name = ADI_GPIO_DEVNAME,
+	.id = 3,
+	.num_resources = ARRAY_SIZE(bfin_gpd_resources),
+	.resource = bfin_gpd_resources,
+	.dev = {
+		.platform_data = &bfin_gpd_pdata, /* Passed to driver */
+	},
+};
+
+static struct resource bfin_gpe_resources[] = {
+	{
+		.start = PORTE_FER,
+		.end = PORTE_MUX + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PE0,
+		.end = IRQ_PE0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct adi_pinctrl_gpio_platform_data bfin_gpe_pdata = {
+	.port_pin_base	= GPIO_PE0,
+	.port_width	= GPIO_BANKSIZE,
+	.pint_id	= 3,
+	.pint_assign	= false,
+	.pint_map	= 1,
+};
+
+static struct platform_device bfin_gpe_device = {
+	.name = ADI_GPIO_DEVNAME,
+	.id = 4,
+	.num_resources = ARRAY_SIZE(bfin_gpe_resources),
+	.resource = bfin_gpe_resources,
+	.dev = {
+		.platform_data = &bfin_gpe_pdata, /* Passed to driver */
+	},
+};
+
+static struct resource bfin_gpf_resources[] = {
+	{
+		.start = PORTF_FER,
+		.end = PORTF_MUX + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PF0,
+		.end = IRQ_PF0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct adi_pinctrl_gpio_platform_data bfin_gpf_pdata = {
+	.port_pin_base	= GPIO_PF0,
+	.port_width	= GPIO_BANKSIZE,
+	.pint_id	= 4,
+	.pint_assign	= false,
+	.pint_map	= 1,
+};
+
+static struct platform_device bfin_gpf_device = {
+	.name = ADI_GPIO_DEVNAME,
+	.id = 5,
+	.num_resources = ARRAY_SIZE(bfin_gpf_resources),
+	.resource = bfin_gpf_resources,
+	.dev = {
+		.platform_data = &bfin_gpf_pdata, /* Passed to driver */
+	},
+};
+
+static struct resource bfin_gpg_resources[] = {
+	{
+		.start = PORTG_FER,
+		.end = PORTG_MUX + 3,
+		.flags = IORESOURCE_MEM,
+	},
+	{
+		.start = IRQ_PG0,
+		.end = IRQ_PG0,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct adi_pinctrl_gpio_platform_data bfin_gpg_pdata = {
+	.port_pin_base	= GPIO_PG0,
+	.port_width	= GPIO_BANKSIZE,
+	.pint_id	= 5,
+	.pint_assign	= false,
+	.pint_map	= 1,
+};
+
+static struct platform_device bfin_gpg_device = {
+	.name = ADI_GPIO_DEVNAME,
+	.id = 6,
+	.num_resources = ARRAY_SIZE(bfin_gpg_resources),
+	.resource = bfin_gpg_resources,
+	.dev = {
+		.platform_data = &bfin_gpg_pdata, /* Passed to driver */
+	},
+};
+
+#endif
+
 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
 #include <linux/input.h>
 #include <linux/gpio_keys.h>
@@ -1349,7 +1711,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 		.modalias = "m25p80", /* Name of spi_driver for this device */
 		.max_speed_hz = 25000000,     /* max spi clock (SCK) speed in HZ */
 		.bus_num = 0, /* Framework bus number */
-		.chip_select = 1, /* SPI_SSEL1*/
+		.chip_select = MAX_CTRL_CS + GPIO_PD11, /* SPI_SSEL1*/
 		.platform_data = &bfin_spi_flash_data,
 		.controller_data = &spi_flash_chip_info,
 		.mode = SPI_MODE_3,
@@ -1362,7 +1724,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 		.irq			= IRQ_PD9,
 		.max_speed_hz		= 12500000,     /* max spi clock (SCK) speed in HZ */
 		.bus_num		= 0,
-		.chip_select  		= 4,
+		.chip_select		= MAX_CTRL_CS + GPIO_PC15, /* SPI_SSEL4 */
 	},
 #endif
 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
@@ -1370,7 +1732,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 		.modalias = "spidev",
 		.max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
 		.bus_num = 0,
-		.chip_select = 1,
+		.chip_select = MAX_CTRL_CS + GPIO_PD11, /* SPI_SSEL1*/
 		.controller_data = &spidev_chip_info,
 	},
 #endif
@@ -1565,6 +1927,22 @@ static struct platform_device bfin_dpmc = {
 static struct platform_device *ezkit_devices[] __initdata = {
 
 	&bfin_dpmc,
+#if defined(CONFIG_PINCTRL_ADI2)
+	&bfin_pinctrl_device,
+	&bfin_pint0_device,
+	&bfin_pint1_device,
+	&bfin_pint2_device,
+	&bfin_pint3_device,
+	&bfin_pint4_device,
+	&bfin_pint5_device,
+	&bfin_gpa_device,
+	&bfin_gpb_device,
+	&bfin_gpc_device,
+	&bfin_gpd_device,
+	&bfin_gpe_device,
+	&bfin_gpf_device,
+	&bfin_gpg_device,
+#endif
 
 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
 	&rtc_device,
@@ -1681,20 +2059,91 @@ static struct platform_device *ezkit_devices[] __initdata = {
 
 };
 
+/* Pin control settings */
+static struct pinctrl_map __initdata bfin_pinmux_map[] = {
+	/* per-device maps */
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-uart.0",  "pinctrl-adi2.0", NULL, "uart0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-uart.1",  "pinctrl-adi2.0", NULL, "uart1"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin_sir.0",  "pinctrl-adi2.0", NULL, "uart0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin_sir.1",  "pinctrl-adi2.0", NULL, "uart1"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-sdh.0",  "pinctrl-adi2.0", NULL, "rsi0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("stmmaceth.0",  "pinctrl-adi2.0", NULL, "eth0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-spi3.0",  "pinctrl-adi2.0", NULL, "spi0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-spi3.1",  "pinctrl-adi2.0", NULL, "spi1"),
+	PIN_MAP_MUX_GROUP_DEFAULT("i2c-bfin-twi.0",  "pinctrl-adi2.0", NULL, "twi0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("i2c-bfin-twi.1",  "pinctrl-adi2.0", NULL, "twi1"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-rotary",  "pinctrl-adi2.0", NULL, "rotary"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin_can.0",  "pinctrl-adi2.0", NULL, "can0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("physmap-flash.0",  "pinctrl-adi2.0", NULL, "smc0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bf609_nl8048.2",  "pinctrl-adi2.0", NULL, "ppi2_16b"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin_display.0",  "pinctrl-adi2.0", NULL, "ppi0_16b"),
+#if defined(CONFIG_VIDEO_MT9M114) || defined(CONFIG_VIDEO_MT9M114_MODULE)
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin_capture.0",  "pinctrl-adi2.0", NULL, "ppi0_8b"),
+#elif defined(CONFIG_VIDEO_VS6624) || defined(CONFIG_VIDEO_VS6624_MODULE)
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin_capture.0",  "pinctrl-adi2.0", NULL, "ppi0_16b"),
+#else
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin_capture.0",  "pinctrl-adi2.0", NULL, "ppi0_24b"),
+#endif
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-i2s.0",  "pinctrl-adi2.0", NULL, "sport0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-tdm.0",  "pinctrl-adi2.0", NULL, "sport0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-i2s.1",  "pinctrl-adi2.0", NULL, "sport1"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-tdm.1",  "pinctrl-adi2.0", NULL, "sport1"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-i2s.2",  "pinctrl-adi2.0", NULL, "sport2"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-tdm.2",  "pinctrl-adi2.0", NULL, "sport2"),
+};
+
+/* Pin control settings */
+static struct pinctrl_map __initdata bfin_pinmux_map[] = {
+	/* per-device maps */
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-uart.0",  "pinctrl-adi2.0", NULL, "uart0"),
+#ifdef CONFIG_BFIN_UART0_CTSRTS
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-uart.0",  "pinctrl-adi2.0", NULL, "uart0_ctsrts"),
+#endif
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-uart.1",  "pinctrl-adi2.0", NULL, "uart1"),
+#ifdef CONFIG_BFIN_UART1_CTSRTS
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-uart.1",  "pinctrl-adi2.0", NULL, "uart1_ctsrts"),
+#endif
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin_sir.0",  "pinctrl-adi2.0", NULL, "uart0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin_sir.1",  "pinctrl-adi2.0", NULL, "uart1"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-sdh.0",  "pinctrl-adi2.0", NULL, "rsi0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("stmmaceth.0",  "pinctrl-adi2.0", NULL, "eth0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-spi3.0",  "pinctrl-adi2.0", NULL, "spi0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-spi3.1",  "pinctrl-adi2.0", NULL, "spi1"),
+	PIN_MAP_MUX_GROUP_DEFAULT("i2c-bfin-twi.0",  "pinctrl-adi2.0", NULL, "twi0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("i2c-bfin-twi.1",  "pinctrl-adi2.0", NULL, "twi1"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-rotary",  "pinctrl-adi2.0", NULL, "rotary"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin_can.0",  "pinctrl-adi2.0", NULL, "can0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("physmap-flash.0",  "pinctrl-adi2.0", NULL, "smc0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bf609_nl8048.2",  "pinctrl-adi2.0", NULL, "ppi2_16b"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin_display.0",  "pinctrl-adi2.0", NULL, "ppi2_16b"),
+#if defined(CONFIG_VIDEO_MT9M114) || defined(CONFIG_VIDEO_MT9M114_MODULE)
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin_capture.0",  "pinctrl-adi2.0", NULL, "ppi0_8b"),
+#elif defined(CONFIG_VIDEO_VS6624) || defined(CONFIG_VIDEO_VS6624_MODULE)
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin_capture.0",  "pinctrl-adi2.0", NULL, "ppi0_16b"),
+#else
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin_capture.0",  "pinctrl-adi2.0", NULL, "ppi0_24b"),
+#endif
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-i2s.0",  "pinctrl-adi2.0", NULL, "sport0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-tdm.0",  "pinctrl-adi2.0", NULL, "sport0"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-i2s.1",  "pinctrl-adi2.0", NULL, "sport1"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-tdm.1",  "pinctrl-adi2.0", NULL, "sport1"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-i2s.2",  "pinctrl-adi2.0", NULL, "sport2"),
+	PIN_MAP_MUX_GROUP_DEFAULT("bfin-tdm.2",  "pinctrl-adi2.0", NULL, "sport2"),
+};
+
 static int __init ezkit_init(void)
 {
 	printk(KERN_INFO "%s(): registering device resources\n", __func__);
 
+	/* Initialize pinmuxing */
+	pinctrl_register_mappings(bfin_pinmux_map,
+				ARRAY_SIZE(bfin_pinmux_map));
+
 	i2c_register_board_info(0, bfin_i2c_board_info0,
 				ARRAY_SIZE(bfin_i2c_board_info0));
 	i2c_register_board_info(1, bfin_i2c_board_info1,
 				ARRAY_SIZE(bfin_i2c_board_info1));
 
-#if defined(CONFIG_STMMAC_ETH) || defined(CONFIG_STMMAC_ETH_MODULE)
-	if (!peripheral_request_list(pins, "emac0"))
-		printk(KERN_ERR "%s(): request emac pins failed\n", __func__);
-#endif
-
 	platform_add_devices(ezkit_devices, ARRAY_SIZE(ezkit_devices));
 
 	spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
diff --git a/arch/blackfin/mach-bf609/include/mach/gpio.h b/arch/blackfin/mach-bf609/include/mach/gpio.h
index c32c8cc8db2e..07182513e794 100644
--- a/arch/blackfin/mach-bf609/include/mach/gpio.h
+++ b/arch/blackfin/mach-bf609/include/mach/gpio.h
@@ -152,14 +152,6 @@ struct gpio_port_t {
 	unsigned long revid;
 };
 
-struct gpio_port_s {
-	unsigned short fer;
-	unsigned short data;
-	unsigned short dir;
-	unsigned short inen;
-	unsigned int mux;
-};
-
 #endif
 
 #include <mach-common/ports-a.h>
diff --git a/arch/blackfin/mach-bf609/include/mach/irq.h b/arch/blackfin/mach-bf609/include/mach/irq.h
index fa0843d5d77a..d1cb6a86f80a 100644
--- a/arch/blackfin/mach-bf609/include/mach/irq.h
+++ b/arch/blackfin/mach-bf609/include/mach/irq.h
@@ -298,7 +298,7 @@
 extern u8 sec_int_priority[];
 
 /*
- * bfin pint registers layout
+ * gpio pint registers layout
  */
 struct bfin_pint_regs {
 	u32 mask_set;
diff --git a/arch/blackfin/mach-bf609/include/mach/portmux.h b/arch/blackfin/mach-bf609/include/mach/portmux.h
index 2e1a51c25098..c48bb71a55ce 100644
--- a/arch/blackfin/mach-bf609/include/mach/portmux.h
+++ b/arch/blackfin/mach-bf609/include/mach/portmux.h
@@ -7,8 +7,6 @@
 #ifndef _MACH_PORTMUX_H_
 #define _MACH_PORTMUX_H_
 
-#define MAX_RESOURCES	MAX_BLACKFIN_GPIOS
-
 /* EMAC RMII Port Mux */
 #define P_MII0_MDC	(P_DEFINED | P_IDENT(GPIO_PC6) | P_FUNCT(0))
 #define P_MII0_MDIO	(P_DEFINED | P_IDENT(GPIO_PC7) | P_FUNCT(0))
@@ -21,6 +19,7 @@
 #define P_MII0_CRS	(P_DEFINED | P_IDENT(GPIO_PC5) | P_FUNCT(0))
 #define P_MII0_ERxER	(P_DEFINED | P_IDENT(GPIO_PC4) | P_FUNCT(0))
 #define P_MII0_TxCLK	(P_DEFINED | P_IDENT(GPIO_PB14) | P_FUNCT(0))
+#define P_MII0_PTPPPS	(P_DEFINED | P_IDENT(GPIO_PB15) | P_FUNCT(0))
 
 #define P_RMII0 {\
 	P_MII0_ETxD0, \
@@ -32,6 +31,7 @@
 	P_MII0_TxCLK, \
 	P_MII0_PHYINT, \
 	P_MII0_CRS, \
+	P_MII0_PTPPPS, \
 	P_MII0_MDC, \
 	P_MII0_MDIO, 0}
 
@@ -46,6 +46,7 @@
 #define P_MII1_CRS	(P_DEFINED | P_IDENT(GPIO_PE13) | P_FUNCT(0))
 #define P_MII1_ERxER	(P_DEFINED | P_IDENT(GPIO_PE14) | P_FUNCT(0))
 #define P_MII1_TxCLK	(P_DEFINED | P_IDENT(GPIO_PG6) | P_FUNCT(0))
+#define P_MII1_PTPPPS	(P_DEFINED | P_IDENT(GPIO_PC9) | P_FUNCT(0))
 
 #define P_RMII1 {\
 	P_MII1_ETxD0, \
@@ -57,6 +58,7 @@
 	P_MII1_TxCLK, \
 	P_MII1_PHYINT, \
 	P_MII1_CRS, \
+	P_MII1_PTPPPS, \
 	P_MII1_MDC, \
 	P_MII1_MDIO, 0}
 
diff --git a/arch/blackfin/mach-common/ints-priority.c b/arch/blackfin/mach-common/ints-priority.c
index d143fd8d2bc5..ca75613231c8 100644
--- a/arch/blackfin/mach-common/ints-priority.c
+++ b/arch/blackfin/mach-common/ints-priority.c
@@ -704,10 +704,9 @@ static inline void bfin_set_irq_handler(unsigned irq, irq_flow_handler_t handle)
 	__irq_set_handler_locked(irq, handle);
 }
 
-static DECLARE_BITMAP(gpio_enabled, MAX_BLACKFIN_GPIOS);
-extern void bfin_gpio_irq_prepare(unsigned gpio);
+#ifdef CONFIG_GPIO_ADI
 
-#if !BFIN_GPIO_PINT
+static DECLARE_BITMAP(gpio_enabled, MAX_BLACKFIN_GPIOS);
 
 static void bfin_gpio_ack_irq(struct irq_data *d)
 {
@@ -821,15 +820,6 @@ static int bfin_gpio_irq_type(struct irq_data *d, unsigned int type)
 	return 0;
 }
 
-#ifdef CONFIG_PM
-static int bfin_gpio_set_wake(struct irq_data *d, unsigned int state)
-{
-	return gpio_pm_wakeup_ctrl(irq_to_gpio(d->irq), state);
-}
-#else
-# define bfin_gpio_set_wake NULL
-#endif
-
 static void bfin_demux_gpio_block(unsigned int irq)
 {
 	unsigned int gpio, mask;
@@ -896,279 +886,40 @@ void bfin_demux_gpio_irq(unsigned int inta_irq,
 	bfin_demux_gpio_block(irq);
 }
 
-#else
-
-#define NR_PINT_BITS		32
-#define IRQ_NOT_AVAIL		0xFF
-
-#define PINT_2_BANK(x)		((x) >> 5)
-#define PINT_2_BIT(x)		((x) & 0x1F)
-#define PINT_BIT(x)		(1 << (PINT_2_BIT(x)))
-
-static unsigned char irq2pint_lut[NR_PINTS];
-static unsigned char pint2irq_lut[NR_PINT_SYS_IRQS * NR_PINT_BITS];
-
-static struct bfin_pint_regs * const pint[NR_PINT_SYS_IRQS] = {
-	(struct bfin_pint_regs *)PINT0_MASK_SET,
-	(struct bfin_pint_regs *)PINT1_MASK_SET,
-	(struct bfin_pint_regs *)PINT2_MASK_SET,
-	(struct bfin_pint_regs *)PINT3_MASK_SET,
-#ifdef CONFIG_BF60x
-	(struct bfin_pint_regs *)PINT4_MASK_SET,
-	(struct bfin_pint_regs *)PINT5_MASK_SET,
-#endif
-};
-
-inline unsigned int get_irq_base(u32 bank, u8 bmap)
-{
-	unsigned int irq_base;
-
-#ifndef CONFIG_BF60x
-	if (bank < 2) {		/*PA-PB */
-		irq_base = IRQ_PA0 + bmap * 16;
-	} else {		/*PC-PJ */
-		irq_base = IRQ_PC0 + bmap * 16;
-	}
-#else
-	irq_base = IRQ_PA0 + bank * 16 + bmap * 16;
-#endif
-	return irq_base;
-}
-
-	/* Whenever PINTx_ASSIGN is altered init_pint_lut() must be executed! */
-void init_pint_lut(void)
-{
-	u16 bank, bit, irq_base, bit_pos;
-	u32 pint_assign;
-	u8 bmap;
-
-	memset(irq2pint_lut, IRQ_NOT_AVAIL, sizeof(irq2pint_lut));
-
-	for (bank = 0; bank < NR_PINT_SYS_IRQS; bank++) {
-
-		pint_assign = pint[bank]->assign;
-
-		for (bit = 0; bit < NR_PINT_BITS; bit++) {
-
-			bmap = (pint_assign >> ((bit / 8) * 8)) & 0xFF;
-
-			irq_base = get_irq_base(bank, bmap);
-
-			irq_base += (bit % 8) + ((bit / 8) & 1 ? 8 : 0);
-			bit_pos = bit + bank * NR_PINT_BITS;
-
-			pint2irq_lut[bit_pos] = irq_base - SYS_IRQS;
-			irq2pint_lut[irq_base - SYS_IRQS] = bit_pos;
-		}
-	}
-}
-
-static void bfin_gpio_ack_irq(struct irq_data *d)
-{
-	u32 pint_val = irq2pint_lut[d->irq - SYS_IRQS];
-	u32 pintbit = PINT_BIT(pint_val);
-	u32 bank = PINT_2_BANK(pint_val);
-
-	if (irqd_get_trigger_type(d) == IRQ_TYPE_EDGE_BOTH) {
-		if (pint[bank]->invert_set & pintbit)
-			pint[bank]->invert_clear = pintbit;
-		else
-			pint[bank]->invert_set = pintbit;
-	}
-	pint[bank]->request = pintbit;
-
-}
-
-static void bfin_gpio_mask_ack_irq(struct irq_data *d)
-{
-	u32 pint_val = irq2pint_lut[d->irq - SYS_IRQS];
-	u32 pintbit = PINT_BIT(pint_val);
-	u32 bank = PINT_2_BANK(pint_val);
-
-	if (irqd_get_trigger_type(d) == IRQ_TYPE_EDGE_BOTH) {
-		if (pint[bank]->invert_set & pintbit)
-			pint[bank]->invert_clear = pintbit;
-		else
-			pint[bank]->invert_set = pintbit;
-	}
-
-	pint[bank]->request = pintbit;
-	pint[bank]->mask_clear = pintbit;
-}
-
-static void bfin_gpio_mask_irq(struct irq_data *d)
-{
-	u32 pint_val = irq2pint_lut[d->irq - SYS_IRQS];
-
-	pint[PINT_2_BANK(pint_val)]->mask_clear = PINT_BIT(pint_val);
-}
-
-static void bfin_gpio_unmask_irq(struct irq_data *d)
-{
-	u32 pint_val = irq2pint_lut[d->irq - SYS_IRQS];
-	u32 pintbit = PINT_BIT(pint_val);
-	u32 bank = PINT_2_BANK(pint_val);
-
-	pint[bank]->mask_set = pintbit;
-}
-
-static unsigned int bfin_gpio_irq_startup(struct irq_data *d)
-{
-	unsigned int irq = d->irq;
-	u32 gpionr = irq_to_gpio(irq);
-	u32 pint_val = irq2pint_lut[irq - SYS_IRQS];
-
-	if (pint_val == IRQ_NOT_AVAIL) {
-		printk(KERN_ERR
-		"GPIO IRQ %d :Not in PINT Assign table "
-		"Reconfigure Interrupt to Port Assignemt\n", irq);
-		return -ENODEV;
-	}
-
-	if (__test_and_set_bit(gpionr, gpio_enabled))
-		bfin_gpio_irq_prepare(gpionr);
-
-	bfin_gpio_unmask_irq(d);
-
-	return 0;
-}
-
-static void bfin_gpio_irq_shutdown(struct irq_data *d)
-{
-	u32 gpionr = irq_to_gpio(d->irq);
-
-	bfin_gpio_mask_irq(d);
-	__clear_bit(gpionr, gpio_enabled);
-	bfin_gpio_irq_free(gpionr);
-}
-
-static int bfin_gpio_irq_type(struct irq_data *d, unsigned int type)
-{
-	unsigned int irq = d->irq;
-	int ret;
-	char buf[16];
-	u32 gpionr = irq_to_gpio(irq);
-	u32 pint_val = irq2pint_lut[irq - SYS_IRQS];
-	u32 pintbit = PINT_BIT(pint_val);
-	u32 bank = PINT_2_BANK(pint_val);
-
-	if (pint_val == IRQ_NOT_AVAIL)
-		return -ENODEV;
-
-	if (type == IRQ_TYPE_PROBE) {
-		/* only probe unenabled GPIO interrupt lines */
-		if (test_bit(gpionr, gpio_enabled))
-			return 0;
-		type = IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING;
-	}
-
-	if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING |
-		    IRQ_TYPE_LEVEL_HIGH | IRQ_TYPE_LEVEL_LOW)) {
-
-		snprintf(buf, 16, "gpio-irq%d", irq);
-		ret = bfin_gpio_irq_request(gpionr, buf);
-		if (ret)
-			return ret;
-
-		if (__test_and_set_bit(gpionr, gpio_enabled))
-			bfin_gpio_irq_prepare(gpionr);
-
-	} else {
-		__clear_bit(gpionr, gpio_enabled);
-		return 0;
-	}
-
-	if ((type & (IRQ_TYPE_EDGE_FALLING | IRQ_TYPE_LEVEL_LOW)))
-		pint[bank]->invert_set = pintbit;	/* low or falling edge denoted by one */
-	else
-		pint[bank]->invert_clear = pintbit;	/* high or rising edge denoted by zero */
-
-	if ((type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING))
-	    == (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) {
-		if (gpio_get_value(gpionr))
-			pint[bank]->invert_set = pintbit;
-		else
-			pint[bank]->invert_clear = pintbit;
-	}
-
-	if (type & (IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING)) {
-		pint[bank]->edge_set = pintbit;
-		bfin_set_irq_handler(irq, handle_edge_irq);
-	} else {
-		pint[bank]->edge_clear = pintbit;
-		bfin_set_irq_handler(irq, handle_level_irq);
-	}
-
-	return 0;
-}
-
 #ifdef CONFIG_PM
-static struct bfin_pm_pint_save save_pint_reg[NR_PINT_SYS_IRQS];
-static u32 save_pint_sec_ctl[NR_PINT_SYS_IRQS];
 
 static int bfin_gpio_set_wake(struct irq_data *d, unsigned int state)
 {
-	u32 pint_irq;
-	u32 pint_val = irq2pint_lut[d->irq - SYS_IRQS];
-	u32 bank = PINT_2_BANK(pint_val);
-
-	switch (bank) {
-	case 0:
-		pint_irq = IRQ_PINT0;
-		break;
-	case 2:
-		pint_irq = IRQ_PINT2;
-		break;
-	case 3:
-		pint_irq = IRQ_PINT3;
-		break;
-	case 1:
-		pint_irq = IRQ_PINT1;
-		break;
-#ifdef CONFIG_BF60x
-	case 4:
-		pint_irq = IRQ_PINT4;
-		break;
-	case 5:
-		pint_irq = IRQ_PINT5;
-		break;
-#endif
-	default:
-		return -EINVAL;
-	}
+	return bfin_gpio_pm_wakeup_ctrl(irq_to_gpio(d->irq), state);
+}
 
-#ifndef SEC_GCTL
-	bfin_internal_set_wake(pint_irq, state);
-#endif
+#else
 
-	return 0;
-}
+# define bfin_gpio_set_wake NULL
 
-void bfin_pint_suspend(void)
-{
-	u32 bank;
+#endif
 
-	for (bank = 0; bank < NR_PINT_SYS_IRQS; bank++) {
-		save_pint_reg[bank].mask_set = pint[bank]->mask_set;
-		save_pint_reg[bank].assign = pint[bank]->assign;
-		save_pint_reg[bank].edge_set = pint[bank]->edge_set;
-		save_pint_reg[bank].invert_set = pint[bank]->invert_set;
-	}
-}
+static struct irq_chip bfin_gpio_irqchip = {
+	.name = "GPIO",
+	.irq_ack = bfin_gpio_ack_irq,
+	.irq_mask = bfin_gpio_mask_irq,
+	.irq_mask_ack = bfin_gpio_mask_ack_irq,
+	.irq_unmask = bfin_gpio_unmask_irq,
+	.irq_disable = bfin_gpio_mask_irq,
+	.irq_enable = bfin_gpio_unmask_irq,
+	.irq_set_type = bfin_gpio_irq_type,
+	.irq_startup = bfin_gpio_irq_startup,
+	.irq_shutdown = bfin_gpio_irq_shutdown,
+	.irq_set_wake = bfin_gpio_set_wake,
+};
 
-void bfin_pint_resume(void)
-{
-	u32 bank;
+#endif
 
-	for (bank = 0; bank < NR_PINT_SYS_IRQS; bank++) {
-		pint[bank]->mask_set = save_pint_reg[bank].mask_set;
-		pint[bank]->assign = save_pint_reg[bank].assign;
-		pint[bank]->edge_set = save_pint_reg[bank].edge_set;
-		pint[bank]->invert_set = save_pint_reg[bank].invert_set;
-	}
-}
+#ifdef CONFIG_PM
 
 #ifdef SEC_GCTL
+static u32 save_pint_sec_ctl[NR_PINT_SYS_IRQS];
+
 static int sec_suspend(void)
 {
 	u32 bank;
@@ -1195,92 +946,10 @@ static struct syscore_ops sec_pm_syscore_ops = {
 	.suspend = sec_suspend,
 	.resume = sec_resume,
 };
-
-#endif
-#else
-# define bfin_gpio_set_wake NULL
-#endif
-
-void bfin_demux_gpio_irq(unsigned int inta_irq,
-			struct irq_desc *desc)
-{
-	u32 bank, pint_val;
-	u32 request, irq;
-	u32 level_mask;
-	int umask = 0;
-	struct irq_chip *chip = irq_desc_get_chip(desc);
-
-	if (chip->irq_mask_ack) {
-		chip->irq_mask_ack(&desc->irq_data);
-	} else {
-		chip->irq_mask(&desc->irq_data);
-		if (chip->irq_ack)
-			chip->irq_ack(&desc->irq_data);
-	}
-
-	switch (inta_irq) {
-	case IRQ_PINT0:
-		bank = 0;
-		break;
-	case IRQ_PINT2:
-		bank = 2;
-		break;
-	case IRQ_PINT3:
-		bank = 3;
-		break;
-	case IRQ_PINT1:
-		bank = 1;
-		break;
-#ifdef CONFIG_BF60x
-	case IRQ_PINT4:
-		bank = 4;
-		break;
-	case IRQ_PINT5:
-		bank = 5;
-		break;
 #endif
-	default:
-		return;
-	}
-
-	pint_val = bank * NR_PINT_BITS;
-
-	request = pint[bank]->request;
-
-	level_mask = pint[bank]->edge_set & request;
-
-	while (request) {
-		if (request & 1) {
-			irq = pint2irq_lut[pint_val] + SYS_IRQS;
-			if (level_mask & PINT_BIT(pint_val)) {
-				umask = 1;
-				chip->irq_unmask(&desc->irq_data);
-			}
-			bfin_handle_irq(irq);
-		}
-		pint_val++;
-		request >>= 1;
-	}
 
-	if (!umask)
-		chip->irq_unmask(&desc->irq_data);
-}
 #endif
 
-static struct irq_chip bfin_gpio_irqchip = {
-	.name = "GPIO",
-	.irq_ack = bfin_gpio_ack_irq,
-	.irq_mask = bfin_gpio_mask_irq,
-	.irq_mask_ack = bfin_gpio_mask_ack_irq,
-	.irq_unmask = bfin_gpio_unmask_irq,
-	.irq_disable = bfin_gpio_mask_irq,
-	.irq_enable = bfin_gpio_unmask_irq,
-	.irq_set_type = bfin_gpio_irq_type,
-	.irq_startup = bfin_gpio_irq_startup,
-	.irq_shutdown = bfin_gpio_irq_shutdown,
-	.irq_set_wake = bfin_gpio_set_wake,
-};
-
 void init_exception_vectors(void)
 {
 	/* cannot program in software:
@@ -1331,17 +1000,6 @@ int __init init_arch_irq(void)
 
 	local_irq_disable();
 
-#if BFIN_GPIO_PINT
-# ifdef CONFIG_PINTx_REASSIGN
-	pint[0]->assign = CONFIG_PINT0_ASSIGN;
-	pint[1]->assign = CONFIG_PINT1_ASSIGN;
-	pint[2]->assign = CONFIG_PINT2_ASSIGN;
-	pint[3]->assign = CONFIG_PINT3_ASSIGN;
-# endif
-	/* Whenever PINTx_ASSIGN is altered init_pint_lut() must be executed! */
-	init_pint_lut();
-#endif
-
 	for (irq = 0; irq <= SYS_IRQS; irq++) {
 		if (irq <= IRQ_CORETMR)
 			irq_set_chip(irq, &bfin_core_irqchip);
@@ -1349,12 +1007,8 @@ int __init init_arch_irq(void)
 			irq_set_chip(irq, &bfin_internal_irqchip);
 
 		switch (irq) {
-#if BFIN_GPIO_PINT
-		case IRQ_PINT0:
-		case IRQ_PINT1:
-		case IRQ_PINT2:
-		case IRQ_PINT3:
-#elif defined(BF537_FAMILY)
+#if !BFIN_GPIO_PINT
+#if defined(BF537_FAMILY)
 		case IRQ_PH_INTA_MAC_RX:
 		case IRQ_PF_INTA_PG_INTA:
 #elif defined(BF533_FAMILY)
@@ -1372,6 +1026,7 @@ int __init init_arch_irq(void)
 #endif
 			irq_set_chained_handler(irq, bfin_demux_gpio_irq);
 			break;
+#endif
 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
 		case IRQ_MAC_ERROR:
 			irq_set_chained_handler(irq,
@@ -1419,10 +1074,12 @@ int __init init_arch_irq(void)
 					 handle_level_irq);
 #endif
 	/* if configured as edge, then will be changed to do_edge_IRQ */
+#ifdef CONFIG_GPIO_ADI
 	for (irq = GPIO_IRQ_BASE;
 		irq < (GPIO_IRQ_BASE + MAX_BLACKFIN_GPIOS); irq++)
 		irq_set_chip_and_handler(irq, &bfin_gpio_irqchip,
 					 handle_level_irq);
+#endif
 	bfin_write_IMASK(0);
 	CSYNC();
 	ilat = bfin_read_ILAT();
@@ -1525,19 +1182,6 @@ int __init init_arch_irq(void)
 
 	local_irq_disable();
 
-#if BFIN_GPIO_PINT
-# ifdef CONFIG_PINTx_REASSIGN
-	pint[0]->assign = CONFIG_PINT0_ASSIGN;
-	pint[1]->assign = CONFIG_PINT1_ASSIGN;
-	pint[2]->assign = CONFIG_PINT2_ASSIGN;
-	pint[3]->assign = CONFIG_PINT3_ASSIGN;
-	pint[4]->assign = CONFIG_PINT4_ASSIGN;
-	pint[5]->assign = CONFIG_PINT5_ASSIGN;
-# endif
-	/* Whenever PINTx_ASSIGN is altered init_pint_lut() must be executed! */
-	init_pint_lut();
-#endif
-
 	for (irq = 0; irq <= SYS_IRQS; irq++) {
 		if (irq <= IRQ_CORETMR) {
 			irq_set_chip_and_handler(irq, &bfin_core_irqchip,
@@ -1546,9 +1190,6 @@ int __init init_arch_irq(void)
 			if (irq == IRQ_CORETMR)
 				irq_set_handler(irq, handle_percpu_irq);
 #endif
-		} else if (irq >= BFIN_IRQ(21) && irq <= BFIN_IRQ(26)) {
-			irq_set_chip(irq, &bfin_sec_irqchip);
-			irq_set_chained_handler(irq, bfin_demux_gpio_irq);
 		} else if (irq >= BFIN_IRQ(34) && irq <= BFIN_IRQ(37)) {
 			irq_set_chip_and_handler(irq, &bfin_sec_irqchip,
 				handle_percpu_irq);
@@ -1563,10 +1204,6 @@ int __init init_arch_irq(void)
 			__irq_set_preflow_handler(irq, bfin_sec_preflow_handler);
 		}
 	}
-	for (irq = GPIO_IRQ_BASE;
-		irq < (GPIO_IRQ_BASE + MAX_BLACKFIN_GPIOS); irq++)
-		irq_set_chip_and_handler(irq, &bfin_gpio_irqchip,
-					handle_level_irq);
 
 	bfin_write_IMASK(0);
 	CSYNC();
diff --git a/arch/blackfin/mach-common/pm.c b/arch/blackfin/mach-common/pm.c
index 87bfe549ad3f..675ffb148fbc 100644
--- a/arch/blackfin/mach-common/pm.c
+++ b/arch/blackfin/mach-common/pm.c
@@ -27,7 +27,7 @@ struct bfin_cpu_pm_fns *bfin_cpu_pm;
 
 void bfin_pm_suspend_standby_enter(void)
 {
-#ifndef CONFIG_BF60x
+#if !BFIN_GPIO_PINT
 	bfin_pm_standby_setup();
 #endif
 
@@ -41,7 +41,7 @@ void bfin_pm_suspend_standby_enter(void)
 # endif
 #endif
 
-#ifndef CONFIG_BF60x
+#if !BFIN_GPIO_PINT
 	bfin_pm_standby_restore();
 #endif
 
@@ -128,6 +128,7 @@ static void flushinv_all_dcache(void)
 					if ((status & 0x3) != 0x3)
 						continue;
 
+
 					/* construct the address using the tag */
 					addr = (status & 0xFFFFC800) | (subbank << 12) | (set << 5);
 
@@ -170,10 +171,8 @@ int bfin_pm_suspend_mem_enter(void)
 		return ret;
 	}
 
+#ifdef CONFIG_GPIO_ADI
 	bfin_gpio_pm_hibernate_suspend();
-
-#if BFIN_GPIO_PINT
-	bfin_pint_suspend();
 #endif
 
 #if defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK)
@@ -194,11 +193,9 @@ int bfin_pm_suspend_mem_enter(void)
 	_enable_icplb();
 	_enable_dcplb();
 
-#if BFIN_GPIO_PINT
-	bfin_pint_resume();
-#endif
-
+#ifdef CONFIG_GPIO_ADI
 	bfin_gpio_pm_hibernate_restore();
+#endif
 	blackfin_dma_resume();
 
 	kfree(memptr);
-- 
cgit 


From f38d45dd5a0c05b7ae9c0fc1c5b2e7f69b4bfcfb Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Thu, 14 Nov 2013 23:08:04 +0100
Subject: openrisc: Refresh or1ksim_defconfig for v3.12

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jonas Bonn <jonas@southpole.se>
---
 arch/openrisc/configs/or1ksim_defconfig | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/arch/openrisc/configs/or1ksim_defconfig b/arch/openrisc/configs/or1ksim_defconfig
index ea172bdfa36a..42fe5303a370 100644
--- a/arch/openrisc/configs/or1ksim_defconfig
+++ b/arch/openrisc/configs/or1ksim_defconfig
@@ -1,9 +1,9 @@
 CONFIG_CROSS_COMPILE="or32-linux-"
+CONFIG_NO_HZ=y
 CONFIG_LOG_BUF_SHIFT=14
 CONFIG_BLK_DEV_INITRD=y
 # CONFIG_RD_GZIP is not set
 CONFIG_EXPERT=y
-# CONFIG_SYSCTL_SYSCALL is not set
 # CONFIG_KALLSYMS is not set
 # CONFIG_EPOLL is not set
 # CONFIG_TIMERFD is not set
@@ -15,7 +15,6 @@ CONFIG_SLOB=y
 CONFIG_MODULES=y
 # CONFIG_BLOCK is not set
 CONFIG_OPENRISC_BUILTIN_DTB="or1ksim"
-CONFIG_NO_HZ=y
 CONFIG_HZ_100=y
 CONFIG_NET=y
 CONFIG_PACKET=y
@@ -39,11 +38,8 @@ CONFIG_DEVTMPFS_MOUNT=y
 # CONFIG_FW_LOADER is not set
 CONFIG_PROC_DEVICETREE=y
 CONFIG_NETDEVICES=y
-CONFIG_MICREL_PHY=y
-CONFIG_NET_ETHERNET=y
 CONFIG_ETHOC=y
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
+CONFIG_MICREL_PHY=y
 # CONFIG_WLAN is not set
 # CONFIG_INPUT is not set
 # CONFIG_SERIO is not set
@@ -55,11 +51,9 @@ CONFIG_SERIAL_8250_CONSOLE=y
 CONFIG_SERIAL_OF_PLATFORM=y
 # CONFIG_HW_RANDOM is not set
 # CONFIG_HWMON is not set
-# CONFIG_MFD_SUPPORT is not set
 # CONFIG_USB_SUPPORT is not set
 # CONFIG_DNOTIFY is not set
 CONFIG_TMPFS=y
 CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
 # CONFIG_ENABLE_WARN_DEPRECATED is not set
 # CONFIG_ENABLE_MUST_CHECK is not set
-- 
cgit 


From be5940c9fd2fa1905fab4353bb9c7051d088d824 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Tue, 12 Nov 2013 20:56:20 +0100
Subject: openrisc: Use the declarations provided by <asm/sections.h>

Openrisc's private vmlinux.h duplicates a few definitions that are already
provided by asm-generic/sections.h. The former is used by setup.c only,
while the latter is already used everywhere else.

Convert setup.c to use the generic version:
  - Include <asm/sections.h>,
  - Remove the (slightly different) extern declarations,
  - Remove the no longer needed address-of ('&') operators.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jonas Bonn <jonas@southpole.se>
---
 arch/openrisc/kernel/setup.c   | 11 ++++++-----
 arch/openrisc/kernel/vmlinux.h |  1 -
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c
index d7359ffbcbdd..89c497813bab 100644
--- a/arch/openrisc/kernel/setup.c
+++ b/arch/openrisc/kernel/setup.c
@@ -40,6 +40,7 @@
 #include <linux/device.h>
 #include <linux/of_platform.h>
 
+#include <asm/sections.h>
 #include <asm/segment.h>
 #include <asm/pgtable.h>
 #include <asm/types.h>
@@ -77,7 +78,7 @@ static unsigned long __init setup_memory(void)
 
 	ram_start_pfn = PFN_UP(memory_start);
 	/* free_ram_start_pfn is first page after kernel */
-	free_ram_start_pfn = PFN_UP(__pa(&_end));
+	free_ram_start_pfn = PFN_UP(__pa(_end));
 	ram_end_pfn = PFN_DOWN(memblock_end_of_DRAM());
 
 	max_pfn = ram_end_pfn;
@@ -290,10 +291,10 @@ void __init setup_arch(char **cmdline_p)
 	setup_cpuinfo();
 
 	/* process 1's initial memory region is the kernel code/data */
-	init_mm.start_code = (unsigned long)&_stext;
-	init_mm.end_code = (unsigned long)&_etext;
-	init_mm.end_data = (unsigned long)&_edata;
-	init_mm.brk = (unsigned long)&_end;
+	init_mm.start_code = (unsigned long)_stext;
+	init_mm.end_code = (unsigned long)_etext;
+	init_mm.end_data = (unsigned long)_edata;
+	init_mm.brk = (unsigned long)_end;
 
 #ifdef CONFIG_BLK_DEV_INITRD
 	initrd_start = (unsigned long)&__initrd_start;
diff --git a/arch/openrisc/kernel/vmlinux.h b/arch/openrisc/kernel/vmlinux.h
index ee842a2d3f36..3f7b2b23a439 100644
--- a/arch/openrisc/kernel/vmlinux.h
+++ b/arch/openrisc/kernel/vmlinux.h
@@ -1,7 +1,6 @@
 #ifndef __OPENRISC_VMLINUX_H_
 #define __OPENRISC_VMLINUX_H_
 
-extern char _stext, _etext, _edata, _end;
 #ifdef CONFIG_BLK_DEV_INITRD
 extern char __initrd_start, __initrd_end;
 extern char __initramfs_start;
-- 
cgit 


From 0db041be3be9c84c2949a4f7eb9c3b6cd80ae97c Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Tue, 12 Nov 2013 20:56:21 +0100
Subject: openrisc: Remove unused declaration of __initramfs_start

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jonas Bonn <jonas@southpole.se>
---
 arch/openrisc/kernel/vmlinux.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/openrisc/kernel/vmlinux.h b/arch/openrisc/kernel/vmlinux.h
index 3f7b2b23a439..70b9ce41835c 100644
--- a/arch/openrisc/kernel/vmlinux.h
+++ b/arch/openrisc/kernel/vmlinux.h
@@ -3,7 +3,6 @@
 
 #ifdef CONFIG_BLK_DEV_INITRD
 extern char __initrd_start, __initrd_end;
-extern char __initramfs_start;
 #endif
 
 extern u32 __dtb_start[];
-- 
cgit 


From e41fae2b1ed8c78283d73651cd65be0228c0dd1c Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 15 Nov 2013 10:40:38 +0100
Subject: hwmon: (lm90) Fix max6696 alarm handling

Bit 2 of status register 2 on MAX6696 (external diode 2 open)
sets ALERT; the bit thus has to be listed in alert_alarms.
Also display a message in the alert handler if the condition
is encountered.

Even though not all overtemperature conditions cause ALERT
to be set, we should not ignore them in the alert handler.
Display messages for all out-of-range conditions.

Reported-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Cc: stable@vger.kernel.org
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 drivers/hwmon/lm90.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index cdff74282955..14e36c114d61 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -278,7 +278,7 @@ static const struct lm90_params lm90_params[] = {
 	[max6696] = {
 		.flags = LM90_HAVE_EMERGENCY
 		  | LM90_HAVE_EMERGENCY_ALARM | LM90_HAVE_TEMP3,
-		.alert_alarms = 0x187c,
+		.alert_alarms = 0x1c7c,
 		.max_convrate = 6,
 		.reg_local_ext = MAX6657_REG_R_LOCAL_TEMPL,
 	},
@@ -1500,19 +1500,22 @@ static void lm90_alert(struct i2c_client *client, unsigned int flag)
 	if ((alarms & 0x7f) == 0 && (alarms2 & 0xfe) == 0) {
 		dev_info(&client->dev, "Everything OK\n");
 	} else {
-		if (alarms & 0x61)
+		if ((alarms & 0x61) || (alarms2 & 0x80))
 			dev_warn(&client->dev,
 				 "temp%d out of range, please check!\n", 1);
-		if (alarms & 0x1a)
+		if ((alarms & 0x1a) || (alarms2 & 0x20))
 			dev_warn(&client->dev,
 				 "temp%d out of range, please check!\n", 2);
 		if (alarms & 0x04)
 			dev_warn(&client->dev,
 				 "temp%d diode open, please check!\n", 2);
 
-		if (alarms2 & 0x18)
+		if (alarms2 & 0x5a)
 			dev_warn(&client->dev,
 				 "temp%d out of range, please check!\n", 3);
+		if (alarms2 & 0x04)
+			dev_warn(&client->dev,
+				 "temp%d diode open, please check!\n", 3);
 
 		/*
 		 * Disable ALERT# output, because these chips don't implement
-- 
cgit 


From 072de4969f431c5ab4cbbcd9cd5af6e960c665c2 Mon Sep 17 00:00:00 2001
From: Wei Ni <wni@nvidia.com>
Date: Fri, 15 Nov 2013 10:40:38 +0100
Subject: hwmon: (lm90) Define status bits

Add bit defines for the status register. And add a function
lm90_is_tripped() which will read status register and return
tripped or not, then lm90_alert can call it directly, and in the
future the IRQ thread also can use it.

[JD: Adjusted to include all the new MAX6696 status flags.]

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 drivers/hwmon/lm90.c | 88 ++++++++++++++++++++++++++++++++++++----------------
 1 file changed, 61 insertions(+), 27 deletions(-)

diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 14e36c114d61..5e414ca80a78 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -179,6 +179,23 @@ enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
 #define LM90_HAVE_TEMP3		(1 << 6) /* 3rd temperature sensor	*/
 #define LM90_HAVE_BROKEN_ALERT	(1 << 7) /* Broken alert		*/
 
+/* LM90 status */
+#define LM90_STATUS_LTHRM	(1 << 0) /* local THERM limit tripped */
+#define LM90_STATUS_RTHRM	(1 << 1) /* remote THERM limit tripped */
+#define LM90_STATUS_ROPEN	(1 << 2) /* remote is an open circuit */
+#define LM90_STATUS_RLOW	(1 << 3) /* remote low temp limit tripped */
+#define LM90_STATUS_RHIGH	(1 << 4) /* remote high temp limit tripped */
+#define LM90_STATUS_LLOW	(1 << 5) /* local low temp limit tripped */
+#define LM90_STATUS_LHIGH	(1 << 6) /* local high temp limit tripped */
+
+#define MAX6696_STATUS2_R2THRM	(1 << 1) /* remote2 THERM limit tripped */
+#define MAX6696_STATUS2_R2OPEN	(1 << 2) /* remote2 is an open circuit */
+#define MAX6696_STATUS2_R2LOW	(1 << 3) /* remote2 low temp limit tripped */
+#define MAX6696_STATUS2_R2HIGH	(1 << 4) /* remote2 high temp limit tripped */
+#define MAX6696_STATUS2_ROT2	(1 << 5) /* remote emergency limit tripped */
+#define MAX6696_STATUS2_R2OT2	(1 << 6) /* remote2 emergency limit tripped */
+#define MAX6696_STATUS2_LOT2	(1 << 7) /* local emergency limit tripped */
+
 /*
  * Driver data (common to all clients)
  */
@@ -1391,6 +1408,43 @@ static void lm90_init_client(struct i2c_client *client)
 		i2c_smbus_write_byte_data(client, LM90_REG_W_CONFIG1, config);
 }
 
+static bool lm90_is_tripped(struct i2c_client *client, u16 *status)
+{
+	struct lm90_data *data = i2c_get_clientdata(client);
+	u8 st, st2 = 0;
+
+	lm90_read_reg(client, LM90_REG_R_STATUS, &st);
+
+	if (data->kind == max6696)
+		lm90_read_reg(client, MAX6696_REG_R_STATUS2, &st2);
+
+	*status = st | (st2 << 8);
+
+	if ((st & 0x7f) == 0 && (st2 & 0xfe) == 0)
+		return false;
+
+	if ((st & (LM90_STATUS_LLOW | LM90_STATUS_LHIGH | LM90_STATUS_LTHRM)) ||
+	    (st2 & MAX6696_STATUS2_LOT2))
+		dev_warn(&client->dev,
+			 "temp%d out of range, please check!\n", 1);
+	if ((st & (LM90_STATUS_RLOW | LM90_STATUS_RHIGH | LM90_STATUS_RTHRM)) ||
+	    (st2 & MAX6696_STATUS2_ROT2))
+		dev_warn(&client->dev,
+			 "temp%d out of range, please check!\n", 2);
+	if (st & LM90_STATUS_ROPEN)
+		dev_warn(&client->dev,
+			 "temp%d diode open, please check!\n", 2);
+	if (st2 & (MAX6696_STATUS2_R2LOW | MAX6696_STATUS2_R2HIGH |
+		   MAX6696_STATUS2_R2THRM | MAX6696_STATUS2_R2OT2))
+		dev_warn(&client->dev,
+			 "temp%d out of range, please check!\n", 3);
+	if (st2 & MAX6696_STATUS2_R2OPEN)
+		dev_warn(&client->dev,
+			 "temp%d diode open, please check!\n", 3);
+
+	return true;
+}
+
 static int lm90_probe(struct i2c_client *client,
 		      const struct i2c_device_id *id)
 {
@@ -1489,46 +1543,26 @@ static int lm90_remove(struct i2c_client *client)
 
 static void lm90_alert(struct i2c_client *client, unsigned int flag)
 {
-	struct lm90_data *data = i2c_get_clientdata(client);
-	u8 config, alarms, alarms2 = 0;
-
-	lm90_read_reg(client, LM90_REG_R_STATUS, &alarms);
-
-	if (data->kind == max6696)
-		lm90_read_reg(client, MAX6696_REG_R_STATUS2, &alarms2);
-
-	if ((alarms & 0x7f) == 0 && (alarms2 & 0xfe) == 0) {
-		dev_info(&client->dev, "Everything OK\n");
-	} else {
-		if ((alarms & 0x61) || (alarms2 & 0x80))
-			dev_warn(&client->dev,
-				 "temp%d out of range, please check!\n", 1);
-		if ((alarms & 0x1a) || (alarms2 & 0x20))
-			dev_warn(&client->dev,
-				 "temp%d out of range, please check!\n", 2);
-		if (alarms & 0x04)
-			dev_warn(&client->dev,
-				 "temp%d diode open, please check!\n", 2);
-
-		if (alarms2 & 0x5a)
-			dev_warn(&client->dev,
-				 "temp%d out of range, please check!\n", 3);
-		if (alarms2 & 0x04)
-			dev_warn(&client->dev,
-				 "temp%d diode open, please check!\n", 3);
+	u16 alarms;
 
+	if (lm90_is_tripped(client, &alarms)) {
 		/*
 		 * Disable ALERT# output, because these chips don't implement
 		 * SMBus alert correctly; they should only hold the alert line
 		 * low briefly.
 		 */
+		struct lm90_data *data = i2c_get_clientdata(client);
+
 		if ((data->flags & LM90_HAVE_BROKEN_ALERT)
 		 && (alarms & data->alert_alarms)) {
+			u8 config;
 			dev_dbg(&client->dev, "Disabling ALERT#\n");
 			lm90_read_reg(client, LM90_REG_R_CONFIG1, &config);
 			i2c_smbus_write_byte_data(client, LM90_REG_W_CONFIG1,
 						  config | 0x80);
 		}
+	} else {
+		dev_info(&client->dev, "Everything OK\n");
 	}
 }
 
-- 
cgit 


From 109b1283fb532ac773a076748ffccf76a7067cab Mon Sep 17 00:00:00 2001
From: Wei Ni <wni@nvidia.com>
Date: Fri, 15 Nov 2013 10:40:39 +0100
Subject: hwmon: (lm90) Add support to handle IRQ

When the temperature exceed the limit range value,
the driver can handle the interrupt.

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 drivers/hwmon/lm90.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 5e414ca80a78..499f473e0780 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -89,6 +89,7 @@
 #include <linux/err.h>
 #include <linux/mutex.h>
 #include <linux/sysfs.h>
+#include <linux/interrupt.h>
 
 /*
  * Addresses to scan
@@ -1445,6 +1446,17 @@ static bool lm90_is_tripped(struct i2c_client *client, u16 *status)
 	return true;
 }
 
+static irqreturn_t lm90_irq_thread(int irq, void *dev_id)
+{
+	struct i2c_client *client = dev_id;
+	u16 status;
+
+	if (lm90_is_tripped(client, &status))
+		return IRQ_HANDLED;
+	else
+		return IRQ_NONE;
+}
+
 static int lm90_probe(struct i2c_client *client,
 		      const struct i2c_device_id *id)
 {
@@ -1521,6 +1533,18 @@ static int lm90_probe(struct i2c_client *client,
 		goto exit_remove_files;
 	}
 
+	if (client->irq) {
+		dev_dbg(dev, "IRQ: %d\n", client->irq);
+		err = devm_request_threaded_irq(dev, client->irq,
+						NULL, lm90_irq_thread,
+						IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+						"lm90", client);
+		if (err < 0) {
+			dev_err(dev, "cannot request IRQ %d\n", client->irq);
+			goto exit_remove_files;
+		}
+	}
+
 	return 0;
 
 exit_remove_files:
-- 
cgit 


From 40465d9424453aa499ea91114d94b52ef8f75d61 Mon Sep 17 00:00:00 2001
From: Wei Ni <wni@nvidia.com>
Date: Fri, 15 Nov 2013 10:40:39 +0100
Subject: hwmon: (lm90) Use enums for the indexes of temp8 and temp11

Using enums for the indexes and nrs of temp8 and temp11.
This make the code much more readable.

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 drivers/hwmon/lm90.c | 152 +++++++++++++++++++++++++++++----------------------
 1 file changed, 88 insertions(+), 64 deletions(-)

diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 499f473e0780..6b0a39264bb0 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -313,6 +313,36 @@ static const struct lm90_params lm90_params[] = {
 	},
 };
 
+/*
+ * TEMP8 register index
+ */
+enum lm90_temp8_reg_index {
+	LOCAL_LOW = 0,
+	LOCAL_HIGH,
+	LOCAL_CRIT,
+	REMOTE_CRIT,
+	LOCAL_EMERG,	/* max6659 and max6695/96 */
+	REMOTE_EMERG,	/* max6659 and max6695/96 */
+	REMOTE2_CRIT,	/* max6695/96 only */
+	REMOTE2_EMERG,	/* max6695/96 only */
+	TEMP8_REG_NUM
+};
+
+/*
+ * TEMP11 register index
+ */
+enum lm90_temp11_reg_index {
+	REMOTE_TEMP = 0,
+	REMOTE_LOW,
+	REMOTE_HIGH,
+	REMOTE_OFFSET,	/* except max6646, max6657/58/59, and max6695/96 */
+	LOCAL_TEMP,
+	REMOTE2_TEMP,	/* max6695/96 only */
+	REMOTE2_LOW,	/* max6695/96 only */
+	REMOTE2_HIGH,	/* max6695/96 only */
+	TEMP11_REG_NUM
+};
+
 /*
  * Client data (each client gets its own)
  */
@@ -335,25 +365,8 @@ struct lm90_data {
 	u8 reg_local_ext;	/* local extension register offset */
 
 	/* registers values */
-	s8 temp8[8];	/* 0: local low limit
-			 * 1: local high limit
-			 * 2: local critical limit
-			 * 3: remote critical limit
-			 * 4: local emergency limit (max6659 and max6695/96)
-			 * 5: remote emergency limit (max6659 and max6695/96)
-			 * 6: remote 2 critical limit (max6695/96 only)
-			 * 7: remote 2 emergency limit (max6695/96 only)
-			 */
-	s16 temp11[8];	/* 0: remote input
-			 * 1: remote low limit
-			 * 2: remote high limit
-			 * 3: remote offset (except max6646, max6657/58/59,
-			 *		     and max6695/96)
-			 * 4: local input
-			 * 5: remote 2 input (max6695/96 only)
-			 * 6: remote 2 low limit (max6695/96 only)
-			 * 7: remote 2 high limit (max6695/96 only)
-			 */
+	s8 temp8[TEMP8_REG_NUM];
+	s16 temp11[TEMP11_REG_NUM];
 	u8 temp_hyst;
 	u16 alarms; /* bitvector (upper 8 bits for max6695/96) */
 };
@@ -495,37 +508,42 @@ static struct lm90_data *lm90_update_device(struct device *dev)
 		u8 alarms;
 
 		dev_dbg(&client->dev, "Updating lm90 data.\n");
-		lm90_read_reg(client, LM90_REG_R_LOCAL_LOW, &data->temp8[0]);
-		lm90_read_reg(client, LM90_REG_R_LOCAL_HIGH, &data->temp8[1]);
-		lm90_read_reg(client, LM90_REG_R_LOCAL_CRIT, &data->temp8[2]);
-		lm90_read_reg(client, LM90_REG_R_REMOTE_CRIT, &data->temp8[3]);
+		lm90_read_reg(client, LM90_REG_R_LOCAL_LOW,
+			      &data->temp8[LOCAL_LOW]);
+		lm90_read_reg(client, LM90_REG_R_LOCAL_HIGH,
+			      &data->temp8[LOCAL_HIGH]);
+		lm90_read_reg(client, LM90_REG_R_LOCAL_CRIT,
+			      &data->temp8[LOCAL_CRIT]);
+		lm90_read_reg(client, LM90_REG_R_REMOTE_CRIT,
+			      &data->temp8[REMOTE_CRIT]);
 		lm90_read_reg(client, LM90_REG_R_TCRIT_HYST, &data->temp_hyst);
 
 		if (data->reg_local_ext) {
 			lm90_read16(client, LM90_REG_R_LOCAL_TEMP,
 				    data->reg_local_ext,
-				    &data->temp11[4]);
+				    &data->temp11[LOCAL_TEMP]);
 		} else {
 			if (lm90_read_reg(client, LM90_REG_R_LOCAL_TEMP,
 					  &h) == 0)
-				data->temp11[4] = h << 8;
+				data->temp11[LOCAL_TEMP] = h << 8;
 		}
 		lm90_read16(client, LM90_REG_R_REMOTE_TEMPH,
-			    LM90_REG_R_REMOTE_TEMPL, &data->temp11[0]);
+			    LM90_REG_R_REMOTE_TEMPL,
+			    &data->temp11[REMOTE_TEMP]);
 
 		if (lm90_read_reg(client, LM90_REG_R_REMOTE_LOWH, &h) == 0) {
-			data->temp11[1] = h << 8;
+			data->temp11[REMOTE_LOW] = h << 8;
 			if ((data->flags & LM90_HAVE_REM_LIMIT_EXT)
 			 && lm90_read_reg(client, LM90_REG_R_REMOTE_LOWL,
 					  &l) == 0)
-				data->temp11[1] |= l;
+				data->temp11[REMOTE_LOW] |= l;
 		}
 		if (lm90_read_reg(client, LM90_REG_R_REMOTE_HIGHH, &h) == 0) {
-			data->temp11[2] = h << 8;
+			data->temp11[REMOTE_HIGH] = h << 8;
 			if ((data->flags & LM90_HAVE_REM_LIMIT_EXT)
 			 && lm90_read_reg(client, LM90_REG_R_REMOTE_HIGHL,
 					  &l) == 0)
-				data->temp11[2] |= l;
+				data->temp11[REMOTE_HIGH] |= l;
 		}
 
 		if (data->flags & LM90_HAVE_OFFSET) {
@@ -533,13 +551,13 @@ static struct lm90_data *lm90_update_device(struct device *dev)
 					  &h) == 0
 			 && lm90_read_reg(client, LM90_REG_R_REMOTE_OFFSL,
 					  &l) == 0)
-				data->temp11[3] = (h << 8) | l;
+				data->temp11[REMOTE_OFFSET] = (h << 8) | l;
 		}
 		if (data->flags & LM90_HAVE_EMERGENCY) {
 			lm90_read_reg(client, MAX6659_REG_R_LOCAL_EMERG,
-				      &data->temp8[4]);
+				      &data->temp8[LOCAL_EMERG]);
 			lm90_read_reg(client, MAX6659_REG_R_REMOTE_EMERG,
-				      &data->temp8[5]);
+				      &data->temp8[REMOTE_EMERG]);
 		}
 		lm90_read_reg(client, LM90_REG_R_STATUS, &alarms);
 		data->alarms = alarms;	/* save as 16 bit value */
@@ -547,15 +565,16 @@ static struct lm90_data *lm90_update_device(struct device *dev)
 		if (data->kind == max6696) {
 			lm90_select_remote_channel(client, data, 1);
 			lm90_read_reg(client, LM90_REG_R_REMOTE_CRIT,
-				      &data->temp8[6]);
+				      &data->temp8[REMOTE2_CRIT]);
 			lm90_read_reg(client, MAX6659_REG_R_REMOTE_EMERG,
-				      &data->temp8[7]);
+				      &data->temp8[REMOTE2_EMERG]);
 			lm90_read16(client, LM90_REG_R_REMOTE_TEMPH,
-				    LM90_REG_R_REMOTE_TEMPL, &data->temp11[5]);
+				    LM90_REG_R_REMOTE_TEMPL,
+				    &data->temp11[REMOTE2_TEMP]);
 			if (!lm90_read_reg(client, LM90_REG_R_REMOTE_LOWH, &h))
-				data->temp11[6] = h << 8;
+				data->temp11[REMOTE2_LOW] = h << 8;
 			if (!lm90_read_reg(client, LM90_REG_R_REMOTE_HIGHH, &h))
-				data->temp11[7] = h << 8;
+				data->temp11[REMOTE2_HIGH] = h << 8;
 			lm90_select_remote_channel(client, data, 0);
 
 			if (!lm90_read_reg(client, MAX6696_REG_R_STATUS2,
@@ -744,7 +763,7 @@ static ssize_t show_temp8(struct device *dev, struct device_attribute *devattr,
 static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr,
 			 const char *buf, size_t count)
 {
-	static const u8 reg[8] = {
+	static const u8 reg[TEMP8_REG_NUM] = {
 		LM90_REG_W_LOCAL_LOW,
 		LM90_REG_W_LOCAL_HIGH,
 		LM90_REG_W_LOCAL_CRIT,
@@ -897,11 +916,11 @@ static ssize_t set_temphyst(struct device *dev, struct device_attribute *dummy,
 
 	mutex_lock(&data->update_lock);
 	if (data->kind == adt7461)
-		temp = temp_from_u8_adt7461(data, data->temp8[2]);
+		temp = temp_from_u8_adt7461(data, data->temp8[LOCAL_CRIT]);
 	else if (data->kind == max6646)
-		temp = temp_from_u8(data->temp8[2]);
+		temp = temp_from_u8(data->temp8[LOCAL_CRIT]);
 	else
-		temp = temp_from_s8(data->temp8[2]);
+		temp = temp_from_s8(data->temp8[LOCAL_CRIT]);
 
 	data->temp_hyst = hyst_to_reg(temp - val);
 	i2c_smbus_write_byte_data(client, LM90_REG_W_TCRIT_HYST,
@@ -955,25 +974,28 @@ static ssize_t set_update_interval(struct device *dev,
 	return count;
 }
 
-static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp11, NULL, 0, 4);
-static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp11, NULL, 0, 0);
+static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp11, NULL,
+	0, LOCAL_TEMP);
+static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp11, NULL,
+	0, REMOTE_TEMP);
 static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp8,
-	set_temp8, 0);
+	set_temp8, LOCAL_LOW);
 static SENSOR_DEVICE_ATTR_2(temp2_min, S_IWUSR | S_IRUGO, show_temp11,
-	set_temp11, 0, 1);
+	set_temp11, 0, REMOTE_LOW);
 static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp8,
-	set_temp8, 1);
+	set_temp8, LOCAL_HIGH);
 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IWUSR | S_IRUGO, show_temp11,
-	set_temp11, 1, 2);
+	set_temp11, 1, REMOTE_HIGH);
 static SENSOR_DEVICE_ATTR(temp1_crit, S_IWUSR | S_IRUGO, show_temp8,
-	set_temp8, 2);
+	set_temp8, LOCAL_CRIT);
 static SENSOR_DEVICE_ATTR(temp2_crit, S_IWUSR | S_IRUGO, show_temp8,
-	set_temp8, 3);
+	set_temp8, REMOTE_CRIT);
 static SENSOR_DEVICE_ATTR(temp1_crit_hyst, S_IWUSR | S_IRUGO, show_temphyst,
-	set_temphyst, 2);
-static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IRUGO, show_temphyst, NULL, 3);
+	set_temphyst, LOCAL_CRIT);
+static SENSOR_DEVICE_ATTR(temp2_crit_hyst, S_IRUGO, show_temphyst, NULL,
+	REMOTE_CRIT);
 static SENSOR_DEVICE_ATTR_2(temp2_offset, S_IWUSR | S_IRUGO, show_temp11,
-	set_temp11, 2, 3);
+	set_temp11, 2, REMOTE_OFFSET);
 
 /* Individual alarm files */
 static SENSOR_DEVICE_ATTR(temp1_crit_alarm, S_IRUGO, show_alarm, NULL, 0);
@@ -1021,13 +1043,13 @@ static const struct attribute_group lm90_group = {
  * Additional attributes for devices with emergency sensors
  */
 static SENSOR_DEVICE_ATTR(temp1_emergency, S_IWUSR | S_IRUGO, show_temp8,
-	set_temp8, 4);
+	set_temp8, LOCAL_EMERG);
 static SENSOR_DEVICE_ATTR(temp2_emergency, S_IWUSR | S_IRUGO, show_temp8,
-	set_temp8, 5);
+	set_temp8, REMOTE_EMERG);
 static SENSOR_DEVICE_ATTR(temp1_emergency_hyst, S_IRUGO, show_temphyst,
-			  NULL, 4);
+			  NULL, LOCAL_EMERG);
 static SENSOR_DEVICE_ATTR(temp2_emergency_hyst, S_IRUGO, show_temphyst,
-			  NULL, 5);
+			  NULL, REMOTE_EMERG);
 
 static struct attribute *lm90_emergency_attributes[] = {
 	&sensor_dev_attr_temp1_emergency.dev_attr.attr,
@@ -1057,18 +1079,20 @@ static const struct attribute_group lm90_emergency_alarm_group = {
 /*
  * Additional attributes for devices with 3 temperature sensors
  */
-static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp11, NULL, 0, 5);
+static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp11, NULL,
+	0, REMOTE2_TEMP);
 static SENSOR_DEVICE_ATTR_2(temp3_min, S_IWUSR | S_IRUGO, show_temp11,
-	set_temp11, 3, 6);
+	set_temp11, 3, REMOTE2_LOW);
 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IWUSR | S_IRUGO, show_temp11,
-	set_temp11, 4, 7);
+	set_temp11, 4, REMOTE2_HIGH);
 static SENSOR_DEVICE_ATTR(temp3_crit, S_IWUSR | S_IRUGO, show_temp8,
-	set_temp8, 6);
-static SENSOR_DEVICE_ATTR(temp3_crit_hyst, S_IRUGO, show_temphyst, NULL, 6);
+	set_temp8, REMOTE2_CRIT);
+static SENSOR_DEVICE_ATTR(temp3_crit_hyst, S_IRUGO, show_temphyst, NULL,
+	REMOTE2_CRIT);
 static SENSOR_DEVICE_ATTR(temp3_emergency, S_IWUSR | S_IRUGO, show_temp8,
-	set_temp8, 7);
+	set_temp8, REMOTE2_EMERG);
 static SENSOR_DEVICE_ATTR(temp3_emergency_hyst, S_IRUGO, show_temphyst,
-			  NULL, 7);
+			  NULL, REMOTE2_EMERG);
 
 static SENSOR_DEVICE_ATTR(temp3_crit_alarm, S_IRUGO, show_alarm, NULL, 9);
 static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 10);
-- 
cgit 


From 1daaceb26d5e6cc08eedf03f64ab220f62243c22 Mon Sep 17 00:00:00 2001
From: Wei Ni <wni@nvidia.com>
Date: Fri, 15 Nov 2013 10:40:39 +0100
Subject: hwmon: (lm90) Add support for TI TMP451

TI TMP451 is mostly compatible with ADT7461, except for
local temperature low byte and max conversion rate.
Add support to the LM90 driver.

Signed-off-by: Wei Ni <wni@nvidia.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 Documentation/hwmon/lm90 |  6 ++++++
 drivers/hwmon/lm90.c     | 45 +++++++++++++++++++++++++++++++++++++--------
 2 files changed, 43 insertions(+), 8 deletions(-)

diff --git a/Documentation/hwmon/lm90 b/Documentation/hwmon/lm90
index b466974e142f..ab81013cc390 100644
--- a/Documentation/hwmon/lm90
+++ b/Documentation/hwmon/lm90
@@ -122,6 +122,12 @@ Supported chips:
     Prefix: 'g781'
     Addresses scanned: I2C 0x4c, 0x4d
     Datasheet: Not publicly available from GMT
+  * Texas Instruments TMP451
+    Prefix: 'tmp451'
+    Addresses scanned: I2C 0x4c
+    Datasheet: Publicly available at TI website
+               http://www.ti.com/litv/pdf/sbos686
+
 
 Author: Jean Delvare <khali@linux-fr.org>
 
diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 6b0a39264bb0..03735c490891 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -60,6 +60,11 @@
  * This driver also supports the G781 from GMT. This device is compatible
  * with the ADM1032.
  *
+ * This driver also supports TMP451 from Texas Instruments. This device is
+ * supported in both compatibility and extended mode. It's mostly compatible
+ * with ADT7461 except for local temperature low byte register and max
+ * conversion rate.
+ *
  * Since the LM90 was the first chipset supported by this driver, most
  * comments will refer to this chipset, but are actually general and
  * concern all supported chipsets, unless mentioned otherwise.
@@ -111,7 +116,7 @@ static const unsigned short normal_i2c[] = {
 	0x4d, 0x4e, 0x4f, I2C_CLIENT_END };
 
 enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
-	max6646, w83l771, max6696, sa56004, g781 };
+	max6646, w83l771, max6696, sa56004, g781, tmp451 };
 
 /*
  * The LM90 registers
@@ -168,6 +173,9 @@ enum chips { lm90, adm1032, lm99, lm86, max6657, max6659, adt7461, max6680,
 #define LM90_DEF_CONVRATE_RVAL	6	/* Def conversion rate register value */
 #define LM90_MAX_CONVRATE_MS	16000	/* Maximum conversion rate in ms */
 
+/* TMP451 registers */
+#define TMP451_REG_R_LOCAL_TEMPL	0x15
+
 /*
  * Device flags
  */
@@ -223,6 +231,7 @@ static const struct i2c_device_id lm90_id[] = {
 	{ "nct1008", adt7461 },
 	{ "w83l771", w83l771 },
 	{ "sa56004", sa56004 },
+	{ "tmp451", tmp451 },
 	{ }
 };
 MODULE_DEVICE_TABLE(i2c, lm90_id);
@@ -311,6 +320,13 @@ static const struct lm90_params lm90_params[] = {
 		.max_convrate = 9,
 		.reg_local_ext = SA56004_REG_R_LOCAL_TEMPL,
 	},
+	[tmp451] = {
+		.flags = LM90_HAVE_OFFSET | LM90_HAVE_REM_LIMIT_EXT
+		  | LM90_HAVE_BROKEN_ALERT,
+		.alert_alarms = 0x7c,
+		.max_convrate = 9,
+		.reg_local_ext = TMP451_REG_R_LOCAL_TEMPL,
+	}
 };
 
 /*
@@ -746,7 +762,7 @@ static ssize_t show_temp8(struct device *dev, struct device_attribute *devattr,
 	struct lm90_data *data = lm90_update_device(dev);
 	int temp;
 
-	if (data->kind == adt7461)
+	if (data->kind == adt7461 || data->kind == tmp451)
 		temp = temp_from_u8_adt7461(data, data->temp8[attr->index]);
 	else if (data->kind == max6646)
 		temp = temp_from_u8(data->temp8[attr->index]);
@@ -790,7 +806,7 @@ static ssize_t set_temp8(struct device *dev, struct device_attribute *devattr,
 		val -= 16000;
 
 	mutex_lock(&data->update_lock);
-	if (data->kind == adt7461)
+	if (data->kind == adt7461 || data->kind == tmp451)
 		data->temp8[nr] = temp_to_u8_adt7461(data, val);
 	else if (data->kind == max6646)
 		data->temp8[nr] = temp_to_u8(val);
@@ -812,7 +828,7 @@ static ssize_t show_temp11(struct device *dev, struct device_attribute *devattr,
 	struct lm90_data *data = lm90_update_device(dev);
 	int temp;
 
-	if (data->kind == adt7461)
+	if (data->kind == adt7461 || data->kind == tmp451)
 		temp = temp_from_u16_adt7461(data, data->temp11[attr->index]);
 	else if (data->kind == max6646)
 		temp = temp_from_u16(data->temp11[attr->index]);
@@ -858,7 +874,7 @@ static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr,
 		val -= 16000;
 
 	mutex_lock(&data->update_lock);
-	if (data->kind == adt7461)
+	if (data->kind == adt7461 || data->kind == tmp451)
 		data->temp11[index] = temp_to_u16_adt7461(data, val);
 	else if (data->kind == max6646)
 		data->temp11[index] = temp_to_u8(val) << 8;
@@ -887,7 +903,7 @@ static ssize_t show_temphyst(struct device *dev,
 	struct lm90_data *data = lm90_update_device(dev);
 	int temp;
 
-	if (data->kind == adt7461)
+	if (data->kind == adt7461 || data->kind == tmp451)
 		temp = temp_from_u8_adt7461(data, data->temp8[attr->index]);
 	else if (data->kind == max6646)
 		temp = temp_from_u8(data->temp8[attr->index]);
@@ -915,7 +931,7 @@ static ssize_t set_temphyst(struct device *dev, struct device_attribute *dummy,
 		return err;
 
 	mutex_lock(&data->update_lock);
-	if (data->kind == adt7461)
+	if (data->kind == adt7461 || data->kind == tmp451)
 		temp = temp_from_u8_adt7461(data, data->temp8[LOCAL_CRIT]);
 	else if (data->kind == max6646)
 		temp = temp_from_u8(data->temp8[LOCAL_CRIT]);
@@ -1348,6 +1364,19 @@ static int lm90_detect(struct i2c_client *client,
 		 && (config1 & 0x3F) == 0x00
 		 && convrate <= 0x08)
 			name = "g781";
+	} else
+	if (address == 0x4C
+	 && man_id == 0x55) { /* Texas Instruments */
+		int local_ext;
+
+		local_ext = i2c_smbus_read_byte_data(client,
+						     TMP451_REG_R_LOCAL_TEMPL);
+
+		if (chip_id == 0x00 /* TMP451 */
+		 && (config1 & 0x1B) == 0x00
+		 && convrate <= 0x09
+		 && (local_ext & 0x0F) == 0x00)
+			name = "tmp451";
 	}
 
 	if (!name) { /* identification failed */
@@ -1409,7 +1438,7 @@ static void lm90_init_client(struct i2c_client *client)
 	data->config_orig = config;
 
 	/* Check Temperature Range Select */
-	if (data->kind == adt7461) {
+	if (data->kind == adt7461 || data->kind == tmp451) {
 		if (config & 0x04)
 			data->flags |= LM90_FLAG_ADT7461_EXT;
 	}
-- 
cgit 


From 3e0f964f2ad38d2d4c2616fb8f12016cf6ea1758 Mon Sep 17 00:00:00 2001
From: Wei Ni <wni@nvidia.com>
Date: Fri, 15 Nov 2013 10:40:39 +0100
Subject: hwmon: (lm90) Add power control

The device lm90 can be controlled by the vcc rail.
Adding the regulator support to power on/off the vcc rail.
Enable the "vcc" regulator before accessing the device.

[JD: Rename variables to avoid confusion with registers.]

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 drivers/hwmon/lm90.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/drivers/hwmon/lm90.c b/drivers/hwmon/lm90.c
index 03735c490891..4c4c1421bf28 100644
--- a/drivers/hwmon/lm90.c
+++ b/drivers/hwmon/lm90.c
@@ -95,6 +95,7 @@
 #include <linux/mutex.h>
 #include <linux/sysfs.h>
 #include <linux/interrupt.h>
+#include <linux/regulator/consumer.h>
 
 /*
  * Addresses to scan
@@ -366,6 +367,7 @@ enum lm90_temp11_reg_index {
 struct lm90_data {
 	struct device *hwmon_dev;
 	struct mutex update_lock;
+	struct regulator *regulator;
 	char valid; /* zero until following fields are valid */
 	unsigned long last_updated; /* in jiffies */
 	int kind;
@@ -1516,8 +1518,20 @@ static int lm90_probe(struct i2c_client *client,
 	struct device *dev = &client->dev;
 	struct i2c_adapter *adapter = to_i2c_adapter(dev->parent);
 	struct lm90_data *data;
+	struct regulator *regulator;
 	int err;
 
+	regulator = devm_regulator_get(dev, "vcc");
+	if (IS_ERR(regulator))
+		return PTR_ERR(regulator);
+
+	err = regulator_enable(regulator);
+	if (err < 0) {
+		dev_err(&client->dev,
+			"Failed to enable regulator: %d\n", err);
+		return err;
+	}
+
 	data = devm_kzalloc(&client->dev, sizeof(struct lm90_data), GFP_KERNEL);
 	if (!data)
 		return -ENOMEM;
@@ -1525,6 +1539,8 @@ static int lm90_probe(struct i2c_client *client,
 	i2c_set_clientdata(client, data);
 	mutex_init(&data->update_lock);
 
+	data->regulator = regulator;
+
 	/* Set the device type */
 	data->kind = id->driver_data;
 	if (data->kind == adm1032) {
@@ -1604,6 +1620,8 @@ exit_remove_files:
 	lm90_remove_files(client, data);
 exit_restore:
 	lm90_restore_conf(client, data);
+	regulator_disable(data->regulator);
+
 	return err;
 }
 
@@ -1614,6 +1632,7 @@ static int lm90_remove(struct i2c_client *client)
 	hwmon_device_unregister(data->hwmon_dev);
 	lm90_remove_files(client, data);
 	lm90_restore_conf(client, data);
+	regulator_disable(data->regulator);
 
 	return 0;
 }
-- 
cgit 


From aae7bce48176d5ffa4ccd4dbdb861488db892837 Mon Sep 17 00:00:00 2001
From: Wei Ni <wni@nvidia.com>
Date: Fri, 15 Nov 2013 10:40:39 +0100
Subject: Documentation: dt: hwmon: Add OF document for LM90

Add OF document for LM90 in Documentation/devicetree/.

[JD: Add this new file to the LM90 MAINTAINERS entry.]

Signed-off-by: Wei Ni <wni@nvidia.com>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
---
 Documentation/devicetree/bindings/hwmon/lm90.txt | 44 ++++++++++++++++++++++++
 MAINTAINERS                                      |  1 +
 2 files changed, 45 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/hwmon/lm90.txt

diff --git a/Documentation/devicetree/bindings/hwmon/lm90.txt b/Documentation/devicetree/bindings/hwmon/lm90.txt
new file mode 100644
index 000000000000..e8632486b9ef
--- /dev/null
+++ b/Documentation/devicetree/bindings/hwmon/lm90.txt
@@ -0,0 +1,44 @@
+* LM90 series thermometer.
+
+Required node properties:
+- compatible: manufacturer and chip name, one of
+		"adi,adm1032"
+		"adi,adt7461"
+		"adi,adt7461a"
+		"gmt,g781"
+		"national,lm90"
+		"national,lm86"
+		"national,lm89"
+		"national,lm99"
+		"dallas,max6646"
+		"dallas,max6647"
+		"dallas,max6649"
+		"dallas,max6657"
+		"dallas,max6658"
+		"dallas,max6659"
+		"dallas,max6680"
+		"dallas,max6681"
+		"dallas,max6695"
+		"dallas,max6696"
+		"onnn,nct1008"
+		"winbond,w83l771"
+		"nxp,sa56004"
+
+- reg: I2C bus address of the device
+
+- vcc-supply: vcc regulator for the supply voltage.
+
+Optional properties:
+- interrupts: Contains a single interrupt specifier which describes the
+              LM90 "-ALERT" pin output.
+              See interrupt-controller/interrupts.txt for the format.
+
+Example LM90 node:
+
+temp-sensor {
+	compatible = "onnn,nct1008";
+	reg = <0x4c>;
+	vcc-supply = <&palmas_ldo6_reg>;
+	interrupt-parent = <&gpio>;
+	interrupts = <TEGRA_GPIO(O, 4) IRQ_TYPE_LEVEL_LOW>;
+}
diff --git a/MAINTAINERS b/MAINTAINERS
index ffcaf975bed7..0da69578ccee 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5175,6 +5175,7 @@ M:	Jean Delvare <khali@linux-fr.org>
 L:	lm-sensors@lm-sensors.org
 S:	Maintained
 F:	Documentation/hwmon/lm90
+F:	Documentation/devicetree/bindings/hwmon/lm90.txt
 F:	drivers/hwmon/lm90.c
 
 LM95234 HARDWARE MONITOR DRIVER
-- 
cgit 


From 621c2cd853fca98258b720d9fe7e8c031ec7f96f Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Tue, 12 Nov 2013 20:42:23 +0100
Subject: openrisc: Refactor or32_early_setup()

  - Change fdt pointer (passed from head.S) from unsigned int to void *,
    which allows to kill a cast, and makes it compatible with __dtb_start.
  - Use pr_info(),
  - Extract common part.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux@lists.openrisc.net
Signed-off-by: Jonas Bonn <jonas@southpole.se>
---
 arch/openrisc/kernel/setup.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c
index 89c497813bab..7d205be45913 100644
--- a/arch/openrisc/kernel/setup.c
+++ b/arch/openrisc/kernel/setup.c
@@ -210,15 +210,15 @@ void __init setup_cpuinfo(void)
  * Falls back on built-in device tree in case null pointer is passed.
  */
 
-void __init or32_early_setup(unsigned int fdt)
+void __init or32_early_setup(void *fdt)
 {
-	if (fdt) {
-		early_init_devtree((void*) fdt);
-		printk(KERN_INFO "FDT at 0x%08x\n", fdt);
-	} else {
-		early_init_devtree(__dtb_start);
-		printk(KERN_INFO "Compiled-in FDT at %p\n", __dtb_start);
+	if (fdt)
+		pr_info("FDT at %p\n", fdt);
+	else {
+		fdt = __dtb_start;
+		pr_info("Compiled-in FDT at %p\n", fdt);
 	}
+	early_init_devtree(fdt);
 }
 
 static int __init openrisc_device_probe(void)
-- 
cgit 


From 37035d62a4dfa7b8cba9b0c8ff6317dba56dd62d Mon Sep 17 00:00:00 2001
From: Steven Miao <realmz6@gmail.com>
Date: Fri, 15 Nov 2013 16:28:52 +0800
Subject: blackfin: pinctrl-adi2: code cleanup after using pinctrl-adi2

Signed-off-by: Steven Miao <realmz6@gmail.com>
---
 arch/blackfin/mach-bf609/boards/ezkit.c | 70 ++-------------------------------
 1 file changed, 4 insertions(+), 66 deletions(-)

diff --git a/arch/blackfin/mach-bf609/boards/ezkit.c b/arch/blackfin/mach-bf609/boards/ezkit.c
index 9da44b360426..aba6b54489ff 100644
--- a/arch/blackfin/mach-bf609/boards/ezkit.c
+++ b/arch/blackfin/mach-bf609/boards/ezkit.c
@@ -678,14 +678,9 @@ static struct mtd_partition ezkit_partitions[] = {
 int bf609_nor_flash_init(struct platform_device *pdev)
 {
 #define CONFIG_SMC_GCTL_VAL     0x00000010
-	const unsigned short pins[] = {
-		P_A3, P_A4, P_A5, P_A6, P_A7, P_A8, P_A9, P_A10, P_A11, P_A12,
-		P_A13, P_A14, P_A15, P_A16, P_A17, P_A18, P_A19, P_A20, P_A21,
-		P_A22, P_A23, P_A24, P_A25, P_NORCK, 0,
-	};
-
-	peripheral_request_list(pins, "smc0");
 
+	if (!devm_pinctrl_get_select_default(&pdev->dev))
+		return -EBUSY;
 	bfin_write32(SMC_GCTL, CONFIG_SMC_GCTL_VAL);
 	bfin_write32(SMC_B0CTL, 0x01002011);
 	bfin_write32(SMC_B0TIM, 0x08170977);
@@ -693,16 +688,9 @@ int bf609_nor_flash_init(struct platform_device *pdev)
 	return 0;
 }
 
-void bf609_nor_flash_exit(struct platform_device *dev)
+void bf609_nor_flash_exit(struct platform_device *pdev)
 {
-	const unsigned short pins[] = {
-		P_A3, P_A4, P_A5, P_A6, P_A7, P_A8, P_A9, P_A10, P_A11, P_A12,
-		P_A13, P_A14, P_A15, P_A16, P_A17, P_A18, P_A19, P_A20, P_A21,
-		P_A22, P_A23, P_A24, P_A25, P_NORCK, 0,
-	};
-
-	peripheral_free_list(pins);
-
+	devm_pinctrl_put(pdev->dev.pins->p);
 	bfin_write32(SMC_GCTL, 0);
 }
 
@@ -1331,17 +1319,6 @@ static struct platform_device bfin_pinctrl_device = {
 	.id = 0,
 };
 
-#ifdef CONFIG_PINCTRL_ADI2
-
-# define ADI_PINT_DEVNAME "adi-gpio-pint"
-# define ADI_GPIO_DEVNAME "adi-gpio"
-# define ADI_PINCTRL_DEVNAME "pinctrl-adi2"
-
-static struct platform_device bfin_pinctrl_device = {
-	.name = ADI_PINCTRL_DEVNAME,
-	.id = 0,
-};
-
 static struct resource bfin_pint0_resources[] = {
 	{
 		.start = PINT0_MASK_SET,
@@ -2092,45 +2069,6 @@ static struct pinctrl_map __initdata bfin_pinmux_map[] = {
 	PIN_MAP_MUX_GROUP_DEFAULT("bfin-tdm.2",  "pinctrl-adi2.0", NULL, "sport2"),
 };
 
-/* Pin control settings */
-static struct pinctrl_map __initdata bfin_pinmux_map[] = {
-	/* per-device maps */
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin-uart.0",  "pinctrl-adi2.0", NULL, "uart0"),
-#ifdef CONFIG_BFIN_UART0_CTSRTS
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin-uart.0",  "pinctrl-adi2.0", NULL, "uart0_ctsrts"),
-#endif
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin-uart.1",  "pinctrl-adi2.0", NULL, "uart1"),
-#ifdef CONFIG_BFIN_UART1_CTSRTS
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin-uart.1",  "pinctrl-adi2.0", NULL, "uart1_ctsrts"),
-#endif
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin_sir.0",  "pinctrl-adi2.0", NULL, "uart0"),
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin_sir.1",  "pinctrl-adi2.0", NULL, "uart1"),
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin-sdh.0",  "pinctrl-adi2.0", NULL, "rsi0"),
-	PIN_MAP_MUX_GROUP_DEFAULT("stmmaceth.0",  "pinctrl-adi2.0", NULL, "eth0"),
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin-spi3.0",  "pinctrl-adi2.0", NULL, "spi0"),
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin-spi3.1",  "pinctrl-adi2.0", NULL, "spi1"),
-	PIN_MAP_MUX_GROUP_DEFAULT("i2c-bfin-twi.0",  "pinctrl-adi2.0", NULL, "twi0"),
-	PIN_MAP_MUX_GROUP_DEFAULT("i2c-bfin-twi.1",  "pinctrl-adi2.0", NULL, "twi1"),
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin-rotary",  "pinctrl-adi2.0", NULL, "rotary"),
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin_can.0",  "pinctrl-adi2.0", NULL, "can0"),
-	PIN_MAP_MUX_GROUP_DEFAULT("physmap-flash.0",  "pinctrl-adi2.0", NULL, "smc0"),
-	PIN_MAP_MUX_GROUP_DEFAULT("bf609_nl8048.2",  "pinctrl-adi2.0", NULL, "ppi2_16b"),
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin_display.0",  "pinctrl-adi2.0", NULL, "ppi2_16b"),
-#if defined(CONFIG_VIDEO_MT9M114) || defined(CONFIG_VIDEO_MT9M114_MODULE)
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin_capture.0",  "pinctrl-adi2.0", NULL, "ppi0_8b"),
-#elif defined(CONFIG_VIDEO_VS6624) || defined(CONFIG_VIDEO_VS6624_MODULE)
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin_capture.0",  "pinctrl-adi2.0", NULL, "ppi0_16b"),
-#else
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin_capture.0",  "pinctrl-adi2.0", NULL, "ppi0_24b"),
-#endif
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin-i2s.0",  "pinctrl-adi2.0", NULL, "sport0"),
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin-tdm.0",  "pinctrl-adi2.0", NULL, "sport0"),
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin-i2s.1",  "pinctrl-adi2.0", NULL, "sport1"),
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin-tdm.1",  "pinctrl-adi2.0", NULL, "sport1"),
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin-i2s.2",  "pinctrl-adi2.0", NULL, "sport2"),
-	PIN_MAP_MUX_GROUP_DEFAULT("bfin-tdm.2",  "pinctrl-adi2.0", NULL, "sport2"),
-};
-
 static int __init ezkit_init(void)
 {
 	printk(KERN_INFO "%s(): registering device resources\n", __func__);
-- 
cgit 


From eb06c06494c4fc5f493074cb082081a17a2d7a45 Mon Sep 17 00:00:00 2001
From: Sonic Zhang <sonic.zhang@analog.com>
Date: Mon, 17 Jun 2013 16:29:59 +0800
Subject: blackfin: serial: Add serial port_fer and port_mux early platform
 resources.

The serial driver sets up port function manually in early platform probe stage
if the ADI GPIO2 driver is used. Remove the bfin_sport_uart early platform
devices.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
---
 arch/blackfin/mach-bf548/boards/ezkit.c | 43 +++++++++++++++++++++------------
 arch/blackfin/mach-bf609/boards/ezkit.c | 31 +++++++++++++++---------
 2 files changed, 47 insertions(+), 27 deletions(-)

diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c
index 984b3f9984cd..d495000b81a0 100644
--- a/arch/blackfin/mach-bf548/boards/ezkit.c
+++ b/arch/blackfin/mach-bf548/boards/ezkit.c
@@ -244,6 +244,13 @@ static struct resource bfin_uart0_resources[] = {
 		.end = UART0_RBR+2,
 		.flags = IORESOURCE_MEM,
 	},
+#ifdef CONFIG_EARLY_PRINTK
+	{
+		.start = PORTE_FER,
+		.end = PORTE_FER+2,
+		.flags = IORESOURCE_REG,
+	},
+#endif
 	{
 		.start = IRQ_UART0_TX,
 		.end = IRQ_UART0_TX,
@@ -292,6 +299,13 @@ static struct resource bfin_uart1_resources[] = {
 		.end = UART1_RBR+2,
 		.flags = IORESOURCE_MEM,
 	},
+#ifdef CONFIG_EARLY_PRINTK
+	{
+		.start = PORTH_FER,
+		.end = PORTH_FER+2,
+		.flags = IORESOURCE_REG,
+	},
+#endif
 	{
 		.start = IRQ_UART1_TX,
 		.end = IRQ_UART1_TX,
@@ -356,6 +370,13 @@ static struct resource bfin_uart2_resources[] = {
 		.end = UART2_RBR+2,
 		.flags = IORESOURCE_MEM,
 	},
+#ifdef CONFIG_EARLY_PRINTK
+	{
+		.start = PORTB_FER,
+		.end = PORTB_FER+2,
+		.flags = IORESOURCE_REG,
+	},
+#endif
 	{
 		.start = IRQ_UART2_TX,
 		.end = IRQ_UART2_TX,
@@ -404,6 +425,13 @@ static struct resource bfin_uart3_resources[] = {
 		.end = UART3_RBR+2,
 		.flags = IORESOURCE_MEM,
 	},
+#ifdef CONFIG_EARLY_PRINTK
+	{
+		.start = PORTB_FER,
+		.end = PORTB_FER+2,
+		.flags = IORESOURCE_REG,
+	},
+#endif
 	{
 		.start = IRQ_UART3_TX,
 		.end = IRQ_UART3_TX,
@@ -2160,21 +2188,6 @@ static struct platform_device *ezkit_early_devices[] __initdata = {
 	&bfin_uart3_device,
 #endif
 #endif
-
-#if defined(CONFIG_SERIAL_BFIN_SPORT_CONSOLE)
-#ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
-	&bfin_sport0_uart_device,
-#endif
-#ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
-	&bfin_sport1_uart_device,
-#endif
-#ifdef CONFIG_SERIAL_BFIN_SPORT2_UART
-	&bfin_sport2_uart_device,
-#endif
-#ifdef CONFIG_SERIAL_BFIN_SPORT3_UART
-	&bfin_sport3_uart_device,
-#endif
-#endif
 };
 
 void __init native_machine_early_platform_add_devices(void)
diff --git a/arch/blackfin/mach-bf609/boards/ezkit.c b/arch/blackfin/mach-bf609/boards/ezkit.c
index aba6b54489ff..82beedd953f6 100644
--- a/arch/blackfin/mach-bf609/boards/ezkit.c
+++ b/arch/blackfin/mach-bf609/boards/ezkit.c
@@ -213,6 +213,18 @@ static struct resource bfin_uart0_resources[] = {
 		.end = UART0_RXDIV+4,
 		.flags = IORESOURCE_MEM,
 	},
+#ifdef CONFIG_EARLY_PRINTK
+	{
+		.start = PORTD_FER,
+		.end = PORTD_FER+2,
+		.flags = IORESOURCE_REG,
+	},
+	{
+		.start = PORTD_MUX,
+		.end = PORTD_MUX+3,
+		.flags = IORESOURCE_REG,
+	},
+#endif
 	{
 		.start = IRQ_UART0_TX,
 		.end = IRQ_UART0_TX,
@@ -277,6 +289,13 @@ static struct resource bfin_uart1_resources[] = {
 		.end = UART1_RXDIV+4,
 		.flags = IORESOURCE_MEM,
 	},
+#ifdef CONFIG_EARLY_PRINTK
+	{
+		.start = PORTG_FER_SET,
+		.end = PORTG_FER_SET+2,
+		.flags = IORESOURCE_REG,
+	},
+#endif
 	{
 		.start = IRQ_UART1_TX,
 		.end = IRQ_UART1_TX,
@@ -2100,18 +2119,6 @@ static struct platform_device *ezkit_early_devices[] __initdata = {
 	&bfin_uart1_device,
 #endif
 #endif
-
-#if defined(CONFIG_SERIAL_BFIN_SPORT_CONSOLE)
-#ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
-	&bfin_sport0_uart_device,
-#endif
-#ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
-	&bfin_sport1_uart_device,
-#endif
-#ifdef CONFIG_SERIAL_BFIN_SPORT2_UART
-	&bfin_sport2_uart_device,
-#endif
-#endif
 };
 
 void __init native_machine_early_platform_add_devices(void)
-- 
cgit 


From aefefe92116b776203f95f3249ae61b94f73f170 Mon Sep 17 00:00:00 2001
From: Scott Jiang <scott.jiang.linux@gmail.com>
Date: Mon, 16 Sep 2013 00:53:09 -0400
Subject: pm: use GFP_ATOMIC when pm core call this function

We shouldn't sleep in atomic sections.

Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
---
 arch/blackfin/mach-common/pm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/blackfin/mach-common/pm.c b/arch/blackfin/mach-common/pm.c
index 675ffb148fbc..4319568029fb 100644
--- a/arch/blackfin/mach-common/pm.c
+++ b/arch/blackfin/mach-common/pm.c
@@ -145,7 +145,7 @@ int bfin_pm_suspend_mem_enter(void)
 
 	unsigned char *memptr = kmalloc(L1_CODE_LENGTH + L1_DATA_A_LENGTH
 					 + L1_DATA_B_LENGTH + L1_SCRATCH_LENGTH,
-					  GFP_KERNEL);
+					  GFP_ATOMIC);
 
 	if (memptr == NULL) {
 		panic("bf53x_suspend_l1_mem malloc failed");
-- 
cgit 


From 177a48fdc8a0156b32f96d9d0056361d88203983 Mon Sep 17 00:00:00 2001
From: Steven Miao <realmz6@gmail.com>
Date: Fri, 15 Nov 2013 15:41:35 +0800
Subject: smp: bf561: and smb_wmb()/smp_rmb() at ipi send/receive

add smb_wmb()/smp_rmb() to keep cache coherent

Signed-off-by: Steven Miao <realmz6@gmail.com>
---
 arch/blackfin/mach-common/smp.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c
index 82f301c117a5..2bbae0783819 100644
--- a/arch/blackfin/mach-common/smp.c
+++ b/arch/blackfin/mach-common/smp.c
@@ -146,6 +146,7 @@ static irqreturn_t ipi_handler_int1(int irq, void *dev_instance)
 
 	platform_clear_ipi(cpu, IRQ_SUPPLE_1);
 
+	smp_rmb();
 	bfin_ipi_data = &__get_cpu_var(bfin_ipi);
 	while ((pending = atomic_xchg(&bfin_ipi_data->bits, 0)) != 0) {
 		msg = 0;
@@ -161,18 +162,20 @@ static irqreturn_t ipi_handler_int1(int irq, void *dev_instance)
 			case BFIN_IPI_CALL_FUNC:
 				generic_smp_call_function_interrupt();
 				break;
-
 			case BFIN_IPI_CALL_FUNC_SINGLE:
 				generic_smp_call_function_single_interrupt();
 				break;
-
 			case BFIN_IPI_CPU_STOP:
 				ipi_cpu_stop(cpu);
 				break;
+			default:
+				goto out;
 			}
 			atomic_dec(&bfin_ipi_data->count);
 		} while (msg < BITS_PER_LONG);
+
 	}
+out:
 	return IRQ_HANDLED;
 }
 
@@ -198,10 +201,11 @@ void send_ipi(const struct cpumask *cpumask, enum ipi_message_type msg)
 		bfin_ipi_data = &per_cpu(bfin_ipi, cpu);
 		atomic_set_mask((1 << msg), &bfin_ipi_data->bits);
 		atomic_inc(&bfin_ipi_data->count);
-		platform_send_ipi_cpu(cpu, IRQ_SUPPLE_1);
 	}
-
 	local_irq_restore(flags);
+	smp_wmb();
+	for_each_cpu(cpu, cpumask)
+		platform_send_ipi_cpu(cpu, IRQ_SUPPLE_1);
 }
 
 void arch_send_call_function_single_ipi(int cpu)
-- 
cgit 


From 36855dcfc980f247909b8f63776664c6ccb6f183 Mon Sep 17 00:00:00 2001
From: Steven Miao <realmz6@gmail.com>
Date: Thu, 14 Nov 2013 17:41:30 +0800
Subject: blackfin: fix build warning for unused variable

Signed-off-by: Steven Miao <realmz6@gmail.com>
---
 arch/blackfin/mach-common/pm.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/blackfin/mach-common/pm.c b/arch/blackfin/mach-common/pm.c
index 4319568029fb..1387a94bcfd5 100644
--- a/arch/blackfin/mach-common/pm.c
+++ b/arch/blackfin/mach-common/pm.c
@@ -141,7 +141,10 @@ static void flushinv_all_dcache(void)
 
 int bfin_pm_suspend_mem_enter(void)
 {
-	int wakeup, ret;
+	int ret;
+#ifndef CONFIG_BF60x
+	int wakeup;
+#endif
 
 	unsigned char *memptr = kmalloc(L1_CODE_LENGTH + L1_DATA_A_LENGTH
 					 + L1_DATA_B_LENGTH + L1_SCRATCH_LENGTH,
-- 
cgit 


From 3d800c6d75b8c92fa928a0bcaf95cd7ac5fd1ce5 Mon Sep 17 00:00:00 2001
From: Brian Austin <brian.austin@cirrus.com>
Date: Thu, 14 Nov 2013 11:46:12 -0600
Subject: ASoC: cs42l52: Correct MIC CTL mask

The mask for CS42L52_MIC_CTL_TYPE_MASK was wrong keeping the mic config
from being set correctly.

Signed-off-by: Brian Austin <brian.austin@cirrus.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
---
 sound/soc/codecs/cs42l52.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/cs42l52.h b/sound/soc/codecs/cs42l52.h
index 4277012c4719..a935d7381af6 100644
--- a/sound/soc/codecs/cs42l52.h
+++ b/sound/soc/codecs/cs42l52.h
@@ -179,7 +179,7 @@
 #define CS42L52_MICB_CTL			0x11
 #define	CS42L52_MIC_CTL_MIC_SEL_MASK		0xBF
 #define	CS42L52_MIC_CTL_MIC_SEL_SHIFT		6
-#define CS42L52_MIC_CTL_TYPE_MASK		0xDF
+#define CS42L52_MIC_CTL_TYPE_MASK		0x20
 #define CS42L52_MIC_CTL_TYPE_SHIFT		5
 
 
-- 
cgit 


From e0b35b89d8d150eeb12437159bf059acd34758e5 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 15 Nov 2013 15:43:27 +0800
Subject: spi: bcm2835: fix reference leak to master in bcm2835_spi_remove()

Once a spi_master_get() call succeeds, we need an additional
spi_master_put() call to free the memory, otherwise we will
leak a reference to master. Fix by removing the unnecessary
spi_master_get() call.

Fixes: 247263dba208 ('spi: bcm2835: use devm_spi_register_master()')
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-bcm2835.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c
index 4c332143a310..3c5aca8d677a 100644
--- a/drivers/spi/spi-bcm2835.c
+++ b/drivers/spi/spi-bcm2835.c
@@ -377,7 +377,7 @@ out_master_put:
 
 static int bcm2835_spi_remove(struct platform_device *pdev)
 {
-	struct spi_master *master = spi_master_get(platform_get_drvdata(pdev));
+	struct spi_master *master = platform_get_drvdata(pdev);
 	struct bcm2835_spi *bs = spi_master_get_devdata(master);
 
 	free_irq(bs->irq, master);
-- 
cgit 


From 53063ec6e2cc38000f98a5de557b7e4fed186cfc Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 15 Nov 2013 15:44:02 +0800
Subject: spi: rspi: use platform drvdata correctly in rspi_remove()

We had set the platform drvdata in rspi_probe() as a type of
struct rspi_data, but use it as struct spi_master in rspi_remove()
Fix by remove the unnecessary spi_master_[get|put]() since rspi->master
is no longer used after spi_unregister_master().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-rspi.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c
index 58449ad4ad0d..9e829cee7357 100644
--- a/drivers/spi/spi-rspi.c
+++ b/drivers/spi/spi-rspi.c
@@ -885,14 +885,13 @@ static void rspi_release_dma(struct rspi_data *rspi)
 
 static int rspi_remove(struct platform_device *pdev)
 {
-	struct rspi_data *rspi = spi_master_get(platform_get_drvdata(pdev));
+	struct rspi_data *rspi = platform_get_drvdata(pdev);
 
 	spi_unregister_master(rspi->master);
 	rspi_release_dma(rspi);
 	free_irq(platform_get_irq(pdev, 0), rspi);
 	clk_put(rspi->clk);
 	iounmap(rspi->addr);
-	spi_master_put(rspi->master);
 
 	return 0;
 }
-- 
cgit 


From a4469a429fc71af6bad9c9e3f7307249dedfe8d1 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 15 Nov 2013 15:48:56 +0800
Subject: spi: mpc512x: fix reference leak to master in
 mpc512x_psc_spi_do_remove()

Once a spi_master_get() call succeeds, we need an additional
spi_master_put() call to free the memory, otherwise we will
leak a reference to master. Fix by removing the unnecessary
spi_master_get() call.

Fixes: eaa24297846b ('spi: mpc512x: use devm_spi_register_master()')
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-mpc512x-psc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-mpc512x-psc.c b/drivers/spi/spi-mpc512x-psc.c
index ee6e61cbf7f5..e9f22a802cdb 100644
--- a/drivers/spi/spi-mpc512x-psc.c
+++ b/drivers/spi/spi-mpc512x-psc.c
@@ -556,7 +556,7 @@ free_master:
 
 static int mpc512x_psc_spi_do_remove(struct device *dev)
 {
-	struct spi_master *master = spi_master_get(dev_get_drvdata(dev));
+	struct spi_master *master = dev_get_drvdata(dev);
 	struct mpc512x_psc_spi *mps = spi_master_get_devdata(master);
 
 	clk_disable_unprepare(mps->clk_mclk);
-- 
cgit 


From b38f87ec503ac68e5c38044101eedba869a56b0d Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 15 Nov 2013 15:49:29 +0800
Subject: spi: txx9: fix reference leak to master in txx9spi_remove()

Once a spi_master_get() call succeeds, we need an additional
spi_master_put() call to free the memory, otherwise we will
leak a reference to master. Fix by removing the unnecessary
spi_master_get() call.

Fixes: 2fe7e4add3e5 ('spi: txx9: use devm_spi_register_master()')
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-txx9.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-txx9.c b/drivers/spi/spi-txx9.c
index 637cce2b8bdd..18c9bb2b5f39 100644
--- a/drivers/spi/spi-txx9.c
+++ b/drivers/spi/spi-txx9.c
@@ -425,7 +425,7 @@ exit:
 
 static int txx9spi_remove(struct platform_device *dev)
 {
-	struct spi_master *master = spi_master_get(platform_get_drvdata(dev));
+	struct spi_master *master = platform_get_drvdata(dev);
 	struct txx9spi *c = spi_master_get_devdata(master);
 
 	destroy_workqueue(c->workqueue);
-- 
cgit 


From ec3252687ae4ad0c3889010aee726c7a05606fe0 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 15 Nov 2013 15:50:59 +0800
Subject: spi: bcm63xx: fix reference leak to master in bcm63xx_spi_remove()

Once a spi_master_get() call succeeds, we need an additional
spi_master_put() call to free the memory, otherwise we will
leak a reference to master. Fix by removing the unnecessary
spi_master_get() call.

Fixes: 247263dba208 ('spi: bcm63xx: use devm_spi_register_master()')
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-bcm63xx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c
index 80d56b214eb5..469ecd876358 100644
--- a/drivers/spi/spi-bcm63xx.c
+++ b/drivers/spi/spi-bcm63xx.c
@@ -435,7 +435,7 @@ out:
 
 static int bcm63xx_spi_remove(struct platform_device *pdev)
 {
-	struct spi_master *master = spi_master_get(platform_get_drvdata(pdev));
+	struct spi_master *master = platform_get_drvdata(pdev);
 	struct bcm63xx_spi *bs = spi_master_get_devdata(master);
 
 	/* reset spi block */
-- 
cgit 


From a3483353ca4e6dbeef2ed62ebed01af109b5b27a Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Wed, 13 Nov 2013 11:42:26 +0100
Subject: drm: check for !kdev in drm_unplug_minor()

We moved minor deallocation to drm_dev_free() in:
  commit 8f6599da8e772fa8de54cdf98e9e03cbaf3946da
  Author: David Herrmann <dh.herrmann@gmail.com>
  Date:   Sun Oct 20 18:55:45 2013 +0200

      drm: delay minor destruction to drm_dev_free()

However, this causes a call to drm_unplug_minor(), which should just do
nothing as drm_dev_unregister() already called this.

But a separate patch caused kdev lifetime changes:
  commit 5bdebb183c9702a8c57a01dff09337be3de337a6
  Author: Dave Airlie <airlied@redhat.com>
  Date:   Fri Oct 11 14:07:25 2013 +1000

      drm/sysfs: sort out minor and connector device object lifetimes.

Thus making our dev_is_registered() call useles (and even segfault if it
is NULL). Replace it with a simple !kdev test and we're fine.

Reported-by: Huax Lu <huax.lu@intel.com>
Reported-by: Daniel Vetter <daniel@ffwll.ch>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=71208
Tested-by: lu hua <huax.lu@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@gmail.com>
---
 drivers/gpu/drm/drm_stub.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c
index c200136a5d8e..f53d5246979c 100644
--- a/drivers/gpu/drm/drm_stub.c
+++ b/drivers/gpu/drm/drm_stub.c
@@ -338,7 +338,7 @@ err_idr:
  */
 static void drm_unplug_minor(struct drm_minor *minor)
 {
-	if (!minor || !device_is_registered(minor->kdev))
+	if (!minor || !minor->kdev)
 		return;
 
 #if defined(CONFIG_DEBUG_FS)
-- 
cgit 


From d009f3deb788f7d06fe04c52eaf812b657a0ca68 Mon Sep 17 00:00:00 2001
From: Vitaliy Kulikov <Vitaliy.Kulikov@idt.com>
Date: Thu, 14 Nov 2013 11:52:16 -0600
Subject: ALSA: hda - load EQ params into IDT codec on HP bNB13 systems

Adds linear EQ filtering for integrated speaker protection

Signed-off-by: Vitaliy Kulikov <vitaliy.kulikov@idt.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_sigmatel.c | 532 ++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 531 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 69a549a82345..d2cc0041d9d3 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -100,6 +100,7 @@ enum {
 	STAC_92HD83XXX_HEADSET_JACK,
 	STAC_92HD83XXX_HP,
 	STAC_HP_ENVY_BASS,
+	STAC_HP_BNB13_EQ,
 	STAC_92HD83XXX_MODELS
 };
 
@@ -2106,6 +2107,434 @@ static void stac92hd83xxx_fixup_headset_jack(struct hda_codec *codec,
 		spec->headset_jack = 1;
 }
 
+static const struct hda_verb hp_bnb13_eq_verbs[] = {
+	/* 44.1KHz base */
+	{ 0x22, 0x7A6, 0x3E },
+	{ 0x22, 0x7A7, 0x68 },
+	{ 0x22, 0x7A8, 0x17 },
+	{ 0x22, 0x7A9, 0x3E },
+	{ 0x22, 0x7AA, 0x68 },
+	{ 0x22, 0x7AB, 0x17 },
+	{ 0x22, 0x7AC, 0x00 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x83 },
+	{ 0x22, 0x7A7, 0x2F },
+	{ 0x22, 0x7A8, 0xD1 },
+	{ 0x22, 0x7A9, 0x83 },
+	{ 0x22, 0x7AA, 0x2F },
+	{ 0x22, 0x7AB, 0xD1 },
+	{ 0x22, 0x7AC, 0x01 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x3E },
+	{ 0x22, 0x7A7, 0x68 },
+	{ 0x22, 0x7A8, 0x17 },
+	{ 0x22, 0x7A9, 0x3E },
+	{ 0x22, 0x7AA, 0x68 },
+	{ 0x22, 0x7AB, 0x17 },
+	{ 0x22, 0x7AC, 0x02 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x7C },
+	{ 0x22, 0x7A7, 0xC6 },
+	{ 0x22, 0x7A8, 0x0C },
+	{ 0x22, 0x7A9, 0x7C },
+	{ 0x22, 0x7AA, 0xC6 },
+	{ 0x22, 0x7AB, 0x0C },
+	{ 0x22, 0x7AC, 0x03 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0xC3 },
+	{ 0x22, 0x7A7, 0x25 },
+	{ 0x22, 0x7A8, 0xAF },
+	{ 0x22, 0x7A9, 0xC3 },
+	{ 0x22, 0x7AA, 0x25 },
+	{ 0x22, 0x7AB, 0xAF },
+	{ 0x22, 0x7AC, 0x04 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x3E },
+	{ 0x22, 0x7A7, 0x85 },
+	{ 0x22, 0x7A8, 0x73 },
+	{ 0x22, 0x7A9, 0x3E },
+	{ 0x22, 0x7AA, 0x85 },
+	{ 0x22, 0x7AB, 0x73 },
+	{ 0x22, 0x7AC, 0x05 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x85 },
+	{ 0x22, 0x7A7, 0x39 },
+	{ 0x22, 0x7A8, 0xC7 },
+	{ 0x22, 0x7A9, 0x85 },
+	{ 0x22, 0x7AA, 0x39 },
+	{ 0x22, 0x7AB, 0xC7 },
+	{ 0x22, 0x7AC, 0x06 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x3C },
+	{ 0x22, 0x7A7, 0x90 },
+	{ 0x22, 0x7A8, 0xB0 },
+	{ 0x22, 0x7A9, 0x3C },
+	{ 0x22, 0x7AA, 0x90 },
+	{ 0x22, 0x7AB, 0xB0 },
+	{ 0x22, 0x7AC, 0x07 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x7A },
+	{ 0x22, 0x7A7, 0xC6 },
+	{ 0x22, 0x7A8, 0x39 },
+	{ 0x22, 0x7A9, 0x7A },
+	{ 0x22, 0x7AA, 0xC6 },
+	{ 0x22, 0x7AB, 0x39 },
+	{ 0x22, 0x7AC, 0x08 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0xC4 },
+	{ 0x22, 0x7A7, 0xE9 },
+	{ 0x22, 0x7A8, 0xDC },
+	{ 0x22, 0x7A9, 0xC4 },
+	{ 0x22, 0x7AA, 0xE9 },
+	{ 0x22, 0x7AB, 0xDC },
+	{ 0x22, 0x7AC, 0x09 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x3D },
+	{ 0x22, 0x7A7, 0xE1 },
+	{ 0x22, 0x7A8, 0x0D },
+	{ 0x22, 0x7A9, 0x3D },
+	{ 0x22, 0x7AA, 0xE1 },
+	{ 0x22, 0x7AB, 0x0D },
+	{ 0x22, 0x7AC, 0x0A },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x89 },
+	{ 0x22, 0x7A7, 0xB6 },
+	{ 0x22, 0x7A8, 0xEB },
+	{ 0x22, 0x7A9, 0x89 },
+	{ 0x22, 0x7AA, 0xB6 },
+	{ 0x22, 0x7AB, 0xEB },
+	{ 0x22, 0x7AC, 0x0B },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x39 },
+	{ 0x22, 0x7A7, 0x9D },
+	{ 0x22, 0x7A8, 0xFE },
+	{ 0x22, 0x7A9, 0x39 },
+	{ 0x22, 0x7AA, 0x9D },
+	{ 0x22, 0x7AB, 0xFE },
+	{ 0x22, 0x7AC, 0x0C },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x76 },
+	{ 0x22, 0x7A7, 0x49 },
+	{ 0x22, 0x7A8, 0x15 },
+	{ 0x22, 0x7A9, 0x76 },
+	{ 0x22, 0x7AA, 0x49 },
+	{ 0x22, 0x7AB, 0x15 },
+	{ 0x22, 0x7AC, 0x0D },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0xC8 },
+	{ 0x22, 0x7A7, 0x80 },
+	{ 0x22, 0x7A8, 0xF5 },
+	{ 0x22, 0x7A9, 0xC8 },
+	{ 0x22, 0x7AA, 0x80 },
+	{ 0x22, 0x7AB, 0xF5 },
+	{ 0x22, 0x7AC, 0x0E },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x40 },
+	{ 0x22, 0x7A7, 0x00 },
+	{ 0x22, 0x7A8, 0x00 },
+	{ 0x22, 0x7A9, 0x40 },
+	{ 0x22, 0x7AA, 0x00 },
+	{ 0x22, 0x7AB, 0x00 },
+	{ 0x22, 0x7AC, 0x0F },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x90 },
+	{ 0x22, 0x7A7, 0x68 },
+	{ 0x22, 0x7A8, 0xF1 },
+	{ 0x22, 0x7A9, 0x90 },
+	{ 0x22, 0x7AA, 0x68 },
+	{ 0x22, 0x7AB, 0xF1 },
+	{ 0x22, 0x7AC, 0x10 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x34 },
+	{ 0x22, 0x7A7, 0x47 },
+	{ 0x22, 0x7A8, 0x6C },
+	{ 0x22, 0x7A9, 0x34 },
+	{ 0x22, 0x7AA, 0x47 },
+	{ 0x22, 0x7AB, 0x6C },
+	{ 0x22, 0x7AC, 0x11 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x6F },
+	{ 0x22, 0x7A7, 0x97 },
+	{ 0x22, 0x7A8, 0x0F },
+	{ 0x22, 0x7A9, 0x6F },
+	{ 0x22, 0x7AA, 0x97 },
+	{ 0x22, 0x7AB, 0x0F },
+	{ 0x22, 0x7AC, 0x12 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0xCB },
+	{ 0x22, 0x7A7, 0xB8 },
+	{ 0x22, 0x7A8, 0x94 },
+	{ 0x22, 0x7A9, 0xCB },
+	{ 0x22, 0x7AA, 0xB8 },
+	{ 0x22, 0x7AB, 0x94 },
+	{ 0x22, 0x7AC, 0x13 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x40 },
+	{ 0x22, 0x7A7, 0x00 },
+	{ 0x22, 0x7A8, 0x00 },
+	{ 0x22, 0x7A9, 0x40 },
+	{ 0x22, 0x7AA, 0x00 },
+	{ 0x22, 0x7AB, 0x00 },
+	{ 0x22, 0x7AC, 0x14 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x95 },
+	{ 0x22, 0x7A7, 0x76 },
+	{ 0x22, 0x7A8, 0x5B },
+	{ 0x22, 0x7A9, 0x95 },
+	{ 0x22, 0x7AA, 0x76 },
+	{ 0x22, 0x7AB, 0x5B },
+	{ 0x22, 0x7AC, 0x15 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x31 },
+	{ 0x22, 0x7A7, 0xAC },
+	{ 0x22, 0x7A8, 0x31 },
+	{ 0x22, 0x7A9, 0x31 },
+	{ 0x22, 0x7AA, 0xAC },
+	{ 0x22, 0x7AB, 0x31 },
+	{ 0x22, 0x7AC, 0x16 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x6A },
+	{ 0x22, 0x7A7, 0x89 },
+	{ 0x22, 0x7A8, 0xA5 },
+	{ 0x22, 0x7A9, 0x6A },
+	{ 0x22, 0x7AA, 0x89 },
+	{ 0x22, 0x7AB, 0xA5 },
+	{ 0x22, 0x7AC, 0x17 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0xCE },
+	{ 0x22, 0x7A7, 0x53 },
+	{ 0x22, 0x7A8, 0xCF },
+	{ 0x22, 0x7A9, 0xCE },
+	{ 0x22, 0x7AA, 0x53 },
+	{ 0x22, 0x7AB, 0xCF },
+	{ 0x22, 0x7AC, 0x18 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x40 },
+	{ 0x22, 0x7A7, 0x00 },
+	{ 0x22, 0x7A8, 0x00 },
+	{ 0x22, 0x7A9, 0x40 },
+	{ 0x22, 0x7AA, 0x00 },
+	{ 0x22, 0x7AB, 0x00 },
+	{ 0x22, 0x7AC, 0x19 },
+	{ 0x22, 0x7AD, 0x80 },
+	/* 48KHz base */
+	{ 0x22, 0x7A6, 0x3E },
+	{ 0x22, 0x7A7, 0x88 },
+	{ 0x22, 0x7A8, 0xDC },
+	{ 0x22, 0x7A9, 0x3E },
+	{ 0x22, 0x7AA, 0x88 },
+	{ 0x22, 0x7AB, 0xDC },
+	{ 0x22, 0x7AC, 0x1A },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x82 },
+	{ 0x22, 0x7A7, 0xEE },
+	{ 0x22, 0x7A8, 0x46 },
+	{ 0x22, 0x7A9, 0x82 },
+	{ 0x22, 0x7AA, 0xEE },
+	{ 0x22, 0x7AB, 0x46 },
+	{ 0x22, 0x7AC, 0x1B },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x3E },
+	{ 0x22, 0x7A7, 0x88 },
+	{ 0x22, 0x7A8, 0xDC },
+	{ 0x22, 0x7A9, 0x3E },
+	{ 0x22, 0x7AA, 0x88 },
+	{ 0x22, 0x7AB, 0xDC },
+	{ 0x22, 0x7AC, 0x1C },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x7D },
+	{ 0x22, 0x7A7, 0x09 },
+	{ 0x22, 0x7A8, 0x28 },
+	{ 0x22, 0x7A9, 0x7D },
+	{ 0x22, 0x7AA, 0x09 },
+	{ 0x22, 0x7AB, 0x28 },
+	{ 0x22, 0x7AC, 0x1D },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0xC2 },
+	{ 0x22, 0x7A7, 0xE5 },
+	{ 0x22, 0x7A8, 0xB4 },
+	{ 0x22, 0x7A9, 0xC2 },
+	{ 0x22, 0x7AA, 0xE5 },
+	{ 0x22, 0x7AB, 0xB4 },
+	{ 0x22, 0x7AC, 0x1E },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x3E },
+	{ 0x22, 0x7A7, 0xA3 },
+	{ 0x22, 0x7A8, 0x1F },
+	{ 0x22, 0x7A9, 0x3E },
+	{ 0x22, 0x7AA, 0xA3 },
+	{ 0x22, 0x7AB, 0x1F },
+	{ 0x22, 0x7AC, 0x1F },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x84 },
+	{ 0x22, 0x7A7, 0xCA },
+	{ 0x22, 0x7A8, 0xF1 },
+	{ 0x22, 0x7A9, 0x84 },
+	{ 0x22, 0x7AA, 0xCA },
+	{ 0x22, 0x7AB, 0xF1 },
+	{ 0x22, 0x7AC, 0x20 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x3C },
+	{ 0x22, 0x7A7, 0xD5 },
+	{ 0x22, 0x7A8, 0x9C },
+	{ 0x22, 0x7A9, 0x3C },
+	{ 0x22, 0x7AA, 0xD5 },
+	{ 0x22, 0x7AB, 0x9C },
+	{ 0x22, 0x7AC, 0x21 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x7B },
+	{ 0x22, 0x7A7, 0x35 },
+	{ 0x22, 0x7A8, 0x0F },
+	{ 0x22, 0x7A9, 0x7B },
+	{ 0x22, 0x7AA, 0x35 },
+	{ 0x22, 0x7AB, 0x0F },
+	{ 0x22, 0x7AC, 0x22 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0xC4 },
+	{ 0x22, 0x7A7, 0x87 },
+	{ 0x22, 0x7A8, 0x45 },
+	{ 0x22, 0x7A9, 0xC4 },
+	{ 0x22, 0x7AA, 0x87 },
+	{ 0x22, 0x7AB, 0x45 },
+	{ 0x22, 0x7AC, 0x23 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x3E },
+	{ 0x22, 0x7A7, 0x0A },
+	{ 0x22, 0x7A8, 0x78 },
+	{ 0x22, 0x7A9, 0x3E },
+	{ 0x22, 0x7AA, 0x0A },
+	{ 0x22, 0x7AB, 0x78 },
+	{ 0x22, 0x7AC, 0x24 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x88 },
+	{ 0x22, 0x7A7, 0xE2 },
+	{ 0x22, 0x7A8, 0x05 },
+	{ 0x22, 0x7A9, 0x88 },
+	{ 0x22, 0x7AA, 0xE2 },
+	{ 0x22, 0x7AB, 0x05 },
+	{ 0x22, 0x7AC, 0x25 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x3A },
+	{ 0x22, 0x7A7, 0x1A },
+	{ 0x22, 0x7A8, 0xA3 },
+	{ 0x22, 0x7A9, 0x3A },
+	{ 0x22, 0x7AA, 0x1A },
+	{ 0x22, 0x7AB, 0xA3 },
+	{ 0x22, 0x7AC, 0x26 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x77 },
+	{ 0x22, 0x7A7, 0x1D },
+	{ 0x22, 0x7A8, 0xFB },
+	{ 0x22, 0x7A9, 0x77 },
+	{ 0x22, 0x7AA, 0x1D },
+	{ 0x22, 0x7AB, 0xFB },
+	{ 0x22, 0x7AC, 0x27 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0xC7 },
+	{ 0x22, 0x7A7, 0xDA },
+	{ 0x22, 0x7A8, 0xE5 },
+	{ 0x22, 0x7A9, 0xC7 },
+	{ 0x22, 0x7AA, 0xDA },
+	{ 0x22, 0x7AB, 0xE5 },
+	{ 0x22, 0x7AC, 0x28 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x40 },
+	{ 0x22, 0x7A7, 0x00 },
+	{ 0x22, 0x7A8, 0x00 },
+	{ 0x22, 0x7A9, 0x40 },
+	{ 0x22, 0x7AA, 0x00 },
+	{ 0x22, 0x7AB, 0x00 },
+	{ 0x22, 0x7AC, 0x29 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x8E },
+	{ 0x22, 0x7A7, 0xD7 },
+	{ 0x22, 0x7A8, 0x22 },
+	{ 0x22, 0x7A9, 0x8E },
+	{ 0x22, 0x7AA, 0xD7 },
+	{ 0x22, 0x7AB, 0x22 },
+	{ 0x22, 0x7AC, 0x2A },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x35 },
+	{ 0x22, 0x7A7, 0x26 },
+	{ 0x22, 0x7A8, 0xC6 },
+	{ 0x22, 0x7A9, 0x35 },
+	{ 0x22, 0x7AA, 0x26 },
+	{ 0x22, 0x7AB, 0xC6 },
+	{ 0x22, 0x7AC, 0x2B },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x71 },
+	{ 0x22, 0x7A7, 0x28 },
+	{ 0x22, 0x7A8, 0xDE },
+	{ 0x22, 0x7A9, 0x71 },
+	{ 0x22, 0x7AA, 0x28 },
+	{ 0x22, 0x7AB, 0xDE },
+	{ 0x22, 0x7AC, 0x2C },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0xCA },
+	{ 0x22, 0x7A7, 0xD9 },
+	{ 0x22, 0x7A8, 0x3A },
+	{ 0x22, 0x7A9, 0xCA },
+	{ 0x22, 0x7AA, 0xD9 },
+	{ 0x22, 0x7AB, 0x3A },
+	{ 0x22, 0x7AC, 0x2D },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x40 },
+	{ 0x22, 0x7A7, 0x00 },
+	{ 0x22, 0x7A8, 0x00 },
+	{ 0x22, 0x7A9, 0x40 },
+	{ 0x22, 0x7AA, 0x00 },
+	{ 0x22, 0x7AB, 0x00 },
+	{ 0x22, 0x7AC, 0x2E },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x93 },
+	{ 0x22, 0x7A7, 0x5E },
+	{ 0x22, 0x7A8, 0xD8 },
+	{ 0x22, 0x7A9, 0x93 },
+	{ 0x22, 0x7AA, 0x5E },
+	{ 0x22, 0x7AB, 0xD8 },
+	{ 0x22, 0x7AC, 0x2F },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x32 },
+	{ 0x22, 0x7A7, 0xB7 },
+	{ 0x22, 0x7A8, 0xB1 },
+	{ 0x22, 0x7A9, 0x32 },
+	{ 0x22, 0x7AA, 0xB7 },
+	{ 0x22, 0x7AB, 0xB1 },
+	{ 0x22, 0x7AC, 0x30 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x6C },
+	{ 0x22, 0x7A7, 0xA1 },
+	{ 0x22, 0x7A8, 0x28 },
+	{ 0x22, 0x7A9, 0x6C },
+	{ 0x22, 0x7AA, 0xA1 },
+	{ 0x22, 0x7AB, 0x28 },
+	{ 0x22, 0x7AC, 0x31 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0xCD },
+	{ 0x22, 0x7A7, 0x48 },
+	{ 0x22, 0x7A8, 0x4F },
+	{ 0x22, 0x7A9, 0xCD },
+	{ 0x22, 0x7AA, 0x48 },
+	{ 0x22, 0x7AB, 0x4F },
+	{ 0x22, 0x7AC, 0x32 },
+	{ 0x22, 0x7AD, 0x80 },
+	{ 0x22, 0x7A6, 0x40 },
+	{ 0x22, 0x7A7, 0x00 },
+	{ 0x22, 0x7A8, 0x00 },
+	{ 0x22, 0x7A9, 0x40 },
+	{ 0x22, 0x7AA, 0x00 },
+	{ 0x22, 0x7AB, 0x00 },
+	{ 0x22, 0x7AC, 0x33 },
+	{ 0x22, 0x7AD, 0x80 },
+	/* common */
+	{ 0x22, 0x782, 0xC1 },
+	{ 0x22, 0x771, 0x2C },
+	{ 0x22, 0x772, 0x2C },
+	{ 0x22, 0x788, 0x04 },
+	{ 0x01, 0x7B0, 0x08 },
+	{}
+};
+
 static const struct hda_fixup stac92hd83xxx_fixups[] = {
 	[STAC_92HD83XXX_REF] = {
 		.type = HDA_FIXUP_PINS,
@@ -2174,6 +2603,12 @@ static const struct hda_fixup stac92hd83xxx_fixups[] = {
 			{}
 		},
 	},
+	[STAC_HP_BNB13_EQ] = {
+		.type = HDA_FIXUP_VERBS,
+		.v.verbs = hp_bnb13_eq_verbs,
+		.chained = true,
+		.chain_id = STAC_92HD83XXX_HP_MIC_LED,
+	},
 };
 
 static const struct hda_model_fixup stac92hd83xxx_models[] = {
@@ -2189,6 +2624,7 @@ static const struct hda_model_fixup stac92hd83xxx_models[] = {
 	{ .id = STAC_92HD83XXX_HP_MIC_LED, .name = "hp-mic-led" },
 	{ .id = STAC_92HD83XXX_HEADSET_JACK, .name = "headset-jack" },
 	{ .id = STAC_HP_ENVY_BASS, .name = "hp-envy-bass" },
+	{ .id = STAC_HP_BNB13_EQ, .name = "hp-bnb13-eq" },
 	{}
 };
 
@@ -2235,7 +2671,101 @@ static const struct snd_pci_quirk stac92hd83xxx_fixup_tbl[] = {
 	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x1888,
 			  "HP Envy Spectre", STAC_HP_ENVY_BASS),
 	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x18df,
-			  "HP Folio", STAC_92HD83XXX_HP_MIC_LED),
+			  "HP Folio", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x18F8,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x1909,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x190A,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x1940,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x1941,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x1942,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x1943,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x1944,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x1945,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x1946,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x1948,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x1949,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x194A,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x194B,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x194C,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x194E,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x194F,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x1950,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x1951,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x195A,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x195B,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x195C,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x1991,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x2103,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x2104,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x2105,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x2106,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x2107,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x2108,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x2109,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x210A,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x210B,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x211C,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x211D,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x211E,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x211F,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x2120,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x2121,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x2122,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x2123,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x213E,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x213F,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x2140,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x21B2,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x21B3,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x21B5,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
+	SND_PCI_QUIRK(PCI_VENDOR_ID_HP, 0x21B6,
+			  "HP bNB13", STAC_HP_BNB13_EQ),
 	SND_PCI_QUIRK_MASK(PCI_VENDOR_ID_HP, 0xff00, 0x1900,
 			  "HP", STAC_92HD83XXX_HP_MIC_LED),
 	SND_PCI_QUIRK_MASK(PCI_VENDOR_ID_HP, 0xff00, 0x2000,
-- 
cgit 


From 6de714c21a8ea315fffba6a93bbe537f4c1bf4f0 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Wed, 16 Oct 2013 11:56:14 +0200
Subject: ARM: at91: fix hanged boot due to early rtc-interrupt

Make sure the RTC-interrupts are masked at boot by adding a new helper
function to be used at SOC-init.

This fixes hanged boot on all AT91 SOCs with an RTC (but RM9200), for
example, after a reset during an RTC-update or if an RTC-alarm goes off
after shutdown (e.g. when using RTC wakeup).

The RTC and RTT-peripherals are powered by backup power (VDDBU) (on all
AT91 SOCs but RM9200) and are not reset on wake-up, user, watchdog or
software reset. This means that their interrupts may be enabled during
early boot if, for example, they where not disabled during a previous
shutdown (e.g. due to a buggy driver or a non-clean shutdown such as a
user reset). Furthermore, an RTC or RTT-alarm may also be active.

The RTC and RTT-interrupts use the shared system-interrupt line, which
is also used by the PIT, and if an interrupt occurs before a handler
(e.g. RTC-driver) has been installed this leads to the system interrupt
being disabled and prevents the system from booting.

Note that when boot hangs due to an early RTC or RTT-interrupt, the only
way to get the system to start again is to remove the backup power (e.g.
battery) or to disable the interrupt manually from the bootloader. In
particular, a user reset is not sufficient.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: stable@vger.kernel.org # 3.11.x
---
 arch/arm/mach-at91/Makefile                   |  2 +-
 arch/arm/mach-at91/at91sam9g45.c              |  2 ++
 arch/arm/mach-at91/at91sam9n12.c              |  6 ++++
 arch/arm/mach-at91/at91sam9rl.c               |  2 ++
 arch/arm/mach-at91/at91sam9x5.c               |  6 ++++
 arch/arm/mach-at91/generic.h                  |  1 +
 arch/arm/mach-at91/include/mach/at91sam9n12.h |  5 +++
 arch/arm/mach-at91/include/mach/at91sam9x5.h  |  5 +++
 arch/arm/mach-at91/include/mach/sama5d3.h     |  5 +++
 arch/arm/mach-at91/sama5d3.c                  |  6 ++++
 arch/arm/mach-at91/sysirq_mask.c              | 47 +++++++++++++++++++++++++++
 11 files changed, 86 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/mach-at91/sysirq_mask.c

diff --git a/arch/arm/mach-at91/Makefile b/arch/arm/mach-at91/Makefile
index 3b0a9538093c..e0fda04e6aa1 100644
--- a/arch/arm/mach-at91/Makefile
+++ b/arch/arm/mach-at91/Makefile
@@ -2,7 +2,7 @@
 # Makefile for the linux kernel.
 #
 
-obj-y		:= irq.o gpio.o setup.o
+obj-y		:= irq.o gpio.o setup.o sysirq_mask.o
 obj-m		:=
 obj-n		:=
 obj-		:=
diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c
index 474ee04d24b9..ff662af77fee 100644
--- a/arch/arm/mach-at91/at91sam9g45.c
+++ b/arch/arm/mach-at91/at91sam9g45.c
@@ -377,6 +377,8 @@ static void __init at91sam9g45_initialize(void)
 	arm_pm_idle = at91sam9_idle;
 	arm_pm_restart = at91sam9g45_restart;
 
+	at91_sysirq_mask_rtc(AT91SAM9G45_BASE_RTC);
+
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9g45_gpio, 5);
 }
diff --git a/arch/arm/mach-at91/at91sam9n12.c b/arch/arm/mach-at91/at91sam9n12.c
index c7d670d11802..4d6001c355f5 100644
--- a/arch/arm/mach-at91/at91sam9n12.c
+++ b/arch/arm/mach-at91/at91sam9n12.c
@@ -223,7 +223,13 @@ static void __init at91sam9n12_map_io(void)
 	at91_init_sram(0, AT91SAM9N12_SRAM_BASE, AT91SAM9N12_SRAM_SIZE);
 }
 
+static void __init at91sam9n12_initialize(void)
+{
+	at91_sysirq_mask_rtc(AT91SAM9N12_BASE_RTC);
+}
+
 AT91_SOC_START(at91sam9n12)
 	.map_io = at91sam9n12_map_io,
 	.register_clocks = at91sam9n12_register_clocks,
+	.init = at91sam9n12_initialize,
 AT91_SOC_END
diff --git a/arch/arm/mach-at91/at91sam9rl.c b/arch/arm/mach-at91/at91sam9rl.c
index d4ec0d9a9872..b5a8c9d81bc8 100644
--- a/arch/arm/mach-at91/at91sam9rl.c
+++ b/arch/arm/mach-at91/at91sam9rl.c
@@ -294,6 +294,8 @@ static void __init at91sam9rl_initialize(void)
 	arm_pm_idle = at91sam9_idle;
 	arm_pm_restart = at91sam9_alt_restart;
 
+	at91_sysirq_mask_rtc(AT91SAM9RL_BASE_RTC);
+
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9rl_gpio, 4);
 }
diff --git a/arch/arm/mach-at91/at91sam9x5.c b/arch/arm/mach-at91/at91sam9x5.c
index 916e5a142917..e8a2e075a1b8 100644
--- a/arch/arm/mach-at91/at91sam9x5.c
+++ b/arch/arm/mach-at91/at91sam9x5.c
@@ -322,6 +322,11 @@ static void __init at91sam9x5_map_io(void)
 	at91_init_sram(0, AT91SAM9X5_SRAM_BASE, AT91SAM9X5_SRAM_SIZE);
 }
 
+static void __init at91sam9x5_initialize(void)
+{
+	at91_sysirq_mask_rtc(AT91SAM9X5_BASE_RTC);
+}
+
 /* --------------------------------------------------------------------
  *  Interrupt initialization
  * -------------------------------------------------------------------- */
@@ -329,4 +334,5 @@ static void __init at91sam9x5_map_io(void)
 AT91_SOC_START(at91sam9x5)
 	.map_io = at91sam9x5_map_io,
 	.register_clocks = at91sam9x5_register_clocks,
+	.init = at91sam9x5_initialize,
 AT91_SOC_END
diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h
index dc6e2f5f804d..80269bda0dd7 100644
--- a/arch/arm/mach-at91/generic.h
+++ b/arch/arm/mach-at91/generic.h
@@ -34,6 +34,7 @@ extern int  __init at91_aic_of_init(struct device_node *node,
 				    struct device_node *parent);
 extern int  __init at91_aic5_of_init(struct device_node *node,
 				    struct device_node *parent);
+extern void __init at91_sysirq_mask_rtc(u32 rtc_base);
 
 
  /* Timer */
diff --git a/arch/arm/mach-at91/include/mach/at91sam9n12.h b/arch/arm/mach-at91/include/mach/at91sam9n12.h
index d374b87c0459..0151bcf6163c 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9n12.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9n12.h
@@ -48,6 +48,11 @@
 #define AT91SAM9N12_BASE_USART2	0xf8024000
 #define AT91SAM9N12_BASE_USART3	0xf8028000
 
+/*
+ * System Peripherals
+ */
+#define AT91SAM9N12_BASE_RTC	0xfffffeb0
+
 /*
  * Internal Memory.
  */
diff --git a/arch/arm/mach-at91/include/mach/at91sam9x5.h b/arch/arm/mach-at91/include/mach/at91sam9x5.h
index c75ee19b58d3..2fc76c49e97c 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9x5.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9x5.h
@@ -54,6 +54,11 @@
 #define AT91SAM9X5_BASE_USART1	0xf8020000
 #define AT91SAM9X5_BASE_USART2	0xf8024000
 
+/*
+ * System Peripherals
+ */
+#define AT91SAM9X5_BASE_RTC	0xfffffeb0
+
 /*
  * Internal Memory.
  */
diff --git a/arch/arm/mach-at91/include/mach/sama5d3.h b/arch/arm/mach-at91/include/mach/sama5d3.h
index 31096a8aaf1d..25613d8c6dcd 100644
--- a/arch/arm/mach-at91/include/mach/sama5d3.h
+++ b/arch/arm/mach-at91/include/mach/sama5d3.h
@@ -72,6 +72,11 @@
 #define SAMA5D3_BASE_USART2	0xf8020000
 #define SAMA5D3_BASE_USART3	0xf8024000
 
+/*
+ * System Peripherals
+ */
+#define SAMA5D3_BASE_RTC	0xfffffeb0
+
 /*
  * Internal Memory
  */
diff --git a/arch/arm/mach-at91/sama5d3.c b/arch/arm/mach-at91/sama5d3.c
index 401279715ab1..3ea86428ee09 100644
--- a/arch/arm/mach-at91/sama5d3.c
+++ b/arch/arm/mach-at91/sama5d3.c
@@ -371,7 +371,13 @@ static void __init sama5d3_map_io(void)
 	at91_init_sram(0, SAMA5D3_SRAM_BASE, SAMA5D3_SRAM_SIZE);
 }
 
+static void __init sama5d3_initialize(void)
+{
+	at91_sysirq_mask_rtc(SAMA5D3_BASE_RTC);
+}
+
 AT91_SOC_START(sama5d3)
 	.map_io = sama5d3_map_io,
 	.register_clocks = sama5d3_register_clocks,
+	.init = sama5d3_initialize,
 AT91_SOC_END
diff --git a/arch/arm/mach-at91/sysirq_mask.c b/arch/arm/mach-at91/sysirq_mask.c
new file mode 100644
index 000000000000..ee3e22c66ce8
--- /dev/null
+++ b/arch/arm/mach-at91/sysirq_mask.c
@@ -0,0 +1,47 @@
+/*
+ * sysirq_mask.c - System-interrupt masking
+ *
+ * Copyright (C) 2013 Johan Hovold <jhovold@gmail.com>
+ *
+ * Functions to disable system interrupts from backup-powered peripherals.
+ *
+ * The RTC and RTT-peripherals are generally powered by backup power (VDDBU)
+ * and are not reset on wake-up, user, watchdog or software reset. This means
+ * that their interrupts may be enabled during early boot (e.g. after a user
+ * reset).
+ *
+ * As the RTC and RTT share the system-interrupt line with the PIT, an
+ * interrupt occurring before a handler has been installed would lead to the
+ * system interrupt being disabled and prevent the system from booting.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/io.h>
+
+#include "generic.h"
+
+#define AT91_RTC_IDR	0x24	/* Interrupt Disable Register */
+#define AT91_RTC_IMR	0x28	/* Interrupt Mask Register */
+
+void __init at91_sysirq_mask_rtc(u32 rtc_base)
+{
+	void __iomem *base;
+	u32 mask;
+
+	base = ioremap(rtc_base, 64);
+	if (!base)
+		return;
+
+	mask = readl_relaxed(base + AT91_RTC_IMR);
+	if (mask) {
+		pr_info("AT91: Disabling rtc irq\n");
+		writel_relaxed(mask, base + AT91_RTC_IDR);
+		(void)readl_relaxed(base + AT91_RTC_IMR);	/* flush */
+	}
+
+	iounmap(base);
+}
-- 
cgit 


From 94c4c79f2f1acca6e69a50bff5a7d9027509c16b Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Wed, 16 Oct 2013 11:56:15 +0200
Subject: ARM: at91: fix hanged boot due to early rtt-interrupt

Make sure the RTT-interrupts are masked at boot by adding a new helper
function to be used at SOC-init.

This fixes hanged boot on all AT91 SOCs with an RTT, for example, if an
RTT-alarm goes off after a non-clean shutdown (e.g. when using RTC
wakeup).

The RTC and RTT-peripherals are powered by backup power (VDDBU) (on all
AT91 SOCs but RM9200) and are not reset on wake-up, user, watchdog or
software reset. This means that their interrupts may be enabled during
early boot if, for example, they where not disabled during a previous
shutdown (e.g. due to a buggy driver or a non-clean shutdown such as a
user reset). Furthermore, an RTC or RTT-alarm may also be active.

The RTC and RTT-interrupts use the shared system-interrupt line, which
is also used by the PIT, and if an interrupt occurs before a handler
(e.g. RTC-driver) has been installed this leads to the system interrupt
being disabled and prevents the system from booting.

Note that when boot hangs due to an early RTC or RTT-interrupt, the only
way to get the system to start again is to remove the backup power (e.g.
battery) or to disable the interrupt manually from the bootloader. In
particular, a user reset is not sufficient.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: stable@vger.kernel.org # 3.11.x
---
 arch/arm/mach-at91/at91sam9260.c |  2 ++
 arch/arm/mach-at91/at91sam9261.c |  2 ++
 arch/arm/mach-at91/at91sam9263.c |  3 +++
 arch/arm/mach-at91/at91sam9g45.c |  1 +
 arch/arm/mach-at91/at91sam9rl.c  |  1 +
 arch/arm/mach-at91/generic.h     |  1 +
 arch/arm/mach-at91/sysirq_mask.c | 24 ++++++++++++++++++++++++
 7 files changed, 34 insertions(+)

diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c
index 5de6074b4f4f..ae10d14de700 100644
--- a/arch/arm/mach-at91/at91sam9260.c
+++ b/arch/arm/mach-at91/at91sam9260.c
@@ -349,6 +349,8 @@ static void __init at91sam9260_initialize(void)
 	arm_pm_idle = at91sam9_idle;
 	arm_pm_restart = at91sam9_alt_restart;
 
+	at91_sysirq_mask_rtt(AT91SAM9260_BASE_RTT);
+
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9260_gpio, 3);
 }
diff --git a/arch/arm/mach-at91/at91sam9261.c b/arch/arm/mach-at91/at91sam9261.c
index 0e0793241ab7..e761e74ac64b 100644
--- a/arch/arm/mach-at91/at91sam9261.c
+++ b/arch/arm/mach-at91/at91sam9261.c
@@ -291,6 +291,8 @@ static void __init at91sam9261_initialize(void)
 	arm_pm_idle = at91sam9_idle;
 	arm_pm_restart = at91sam9_alt_restart;
 
+	at91_sysirq_mask_rtt(AT91SAM9261_BASE_RTT);
+
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9261_gpio, 3);
 }
diff --git a/arch/arm/mach-at91/at91sam9263.c b/arch/arm/mach-at91/at91sam9263.c
index 6ce7d1850893..e6fed6253a7f 100644
--- a/arch/arm/mach-at91/at91sam9263.c
+++ b/arch/arm/mach-at91/at91sam9263.c
@@ -328,6 +328,9 @@ static void __init at91sam9263_initialize(void)
 	arm_pm_idle = at91sam9_idle;
 	arm_pm_restart = at91sam9_alt_restart;
 
+	at91_sysirq_mask_rtt(AT91SAM9263_BASE_RTT0);
+	at91_sysirq_mask_rtt(AT91SAM9263_BASE_RTT1);
+
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9263_gpio, 5);
 }
diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c
index ff662af77fee..9f7a97c84c12 100644
--- a/arch/arm/mach-at91/at91sam9g45.c
+++ b/arch/arm/mach-at91/at91sam9g45.c
@@ -378,6 +378,7 @@ static void __init at91sam9g45_initialize(void)
 	arm_pm_restart = at91sam9g45_restart;
 
 	at91_sysirq_mask_rtc(AT91SAM9G45_BASE_RTC);
+	at91_sysirq_mask_rtt(AT91SAM9G45_BASE_RTT);
 
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9g45_gpio, 5);
diff --git a/arch/arm/mach-at91/at91sam9rl.c b/arch/arm/mach-at91/at91sam9rl.c
index b5a8c9d81bc8..301e1728d353 100644
--- a/arch/arm/mach-at91/at91sam9rl.c
+++ b/arch/arm/mach-at91/at91sam9rl.c
@@ -295,6 +295,7 @@ static void __init at91sam9rl_initialize(void)
 	arm_pm_restart = at91sam9_alt_restart;
 
 	at91_sysirq_mask_rtc(AT91SAM9RL_BASE_RTC);
+	at91_sysirq_mask_rtt(AT91SAM9RL_BASE_RTT);
 
 	/* Register GPIO subsystem */
 	at91_gpio_init(at91sam9rl_gpio, 4);
diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h
index 80269bda0dd7..26dee3ce9397 100644
--- a/arch/arm/mach-at91/generic.h
+++ b/arch/arm/mach-at91/generic.h
@@ -35,6 +35,7 @@ extern int  __init at91_aic_of_init(struct device_node *node,
 extern int  __init at91_aic5_of_init(struct device_node *node,
 				    struct device_node *parent);
 extern void __init at91_sysirq_mask_rtc(u32 rtc_base);
+extern void __init at91_sysirq_mask_rtt(u32 rtt_base);
 
 
  /* Timer */
diff --git a/arch/arm/mach-at91/sysirq_mask.c b/arch/arm/mach-at91/sysirq_mask.c
index ee3e22c66ce8..2ba694f9626b 100644
--- a/arch/arm/mach-at91/sysirq_mask.c
+++ b/arch/arm/mach-at91/sysirq_mask.c
@@ -21,6 +21,7 @@
  */
 
 #include <linux/io.h>
+#include <mach/at91_rtt.h>
 
 #include "generic.h"
 
@@ -45,3 +46,26 @@ void __init at91_sysirq_mask_rtc(u32 rtc_base)
 
 	iounmap(base);
 }
+
+void __init at91_sysirq_mask_rtt(u32 rtt_base)
+{
+	void __iomem *base;
+	void __iomem *reg;
+	u32 mode;
+
+	base = ioremap(rtt_base, 16);
+	if (!base)
+		return;
+
+	reg = base + AT91_RTT_MR;
+
+	mode = readl_relaxed(reg);
+	if (mode & (AT91_RTT_ALMIEN | AT91_RTT_RTTINCIEN)) {
+		pr_info("AT91: Disabling rtt irq\n");
+		mode &= ~(AT91_RTT_ALMIEN | AT91_RTT_RTTINCIEN);
+		writel_relaxed(mode, reg);
+		(void)readl_relaxed(reg);			/* flush */
+	}
+
+	iounmap(base);
+}
-- 
cgit 


From aec644e56ed4fdd6c96db9cd494ae523f0d70e2e Mon Sep 17 00:00:00 2001
From: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Date: Fri, 8 Nov 2013 13:47:59 +0100
Subject: s390/boot: Install bzImage as default kernel image

The compressed kernel image is built since commit "[S390] add support for
compressed kernels" (1844c9bc0b2fed3023551c1affe033ab38e90b9a).
Now install the compressed kernel image (bzImage) as default.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/boot/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile
index f2737a005afc..9a42ecec5647 100644
--- a/arch/s390/boot/Makefile
+++ b/arch/s390/boot/Makefile
@@ -21,6 +21,6 @@ $(obj)/bzImage: $(obj)/compressed/vmlinux FORCE
 $(obj)/compressed/vmlinux: FORCE
 	$(Q)$(MAKE) $(build)=$(obj)/compressed $@
 
-install: $(CONFIGURE) $(obj)/image
-	sh -x  $(srctree)/$(obj)/install.sh $(KERNELRELEASE) $(obj)/image \
+install: $(CONFIGURE) $(obj)/bzImage
+	sh -x  $(srctree)/$(obj)/install.sh $(KERNELRELEASE) $(obj)/bzImage \
 	      System.map "$(INSTALL_PATH)"
-- 
cgit 


From d1e61fe49fd450be15d402ac353784f5ba8a624e Mon Sep 17 00:00:00 2001
From: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Date: Tue, 12 Nov 2013 15:03:37 +0100
Subject: s390/3270: fix missing device_destroy() call

Unloading the fs3270 kernel module does not remove the created
"3270/tub" device.  Reloading the module then causes a sysfs warning:
"sysfs: cannot create duplicate filename '/devices/virtual/3270/3270!tub'".

Call device_destroy() in the module exit function to solve this issue.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/s390/char/fs3270.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index f93cc32eb818..71e974738014 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -564,6 +564,7 @@ static void __exit
 fs3270_exit(void)
 {
 	raw3270_unregister_notifier(&fs3270_notifier);
+	device_destroy(class3270, MKDEV(IBM_FS3270_MAJOR, 0));
 	__unregister_chrdev(IBM_FS3270_MAJOR, 0, 1, "fs3270");
 }
 
-- 
cgit 


From 7a572a3ab1d1d346fcde5243914a18b0218780e9 Mon Sep 17 00:00:00 2001
From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Tue, 12 Nov 2013 19:33:06 +0100
Subject: s390/pci: improve handling of bus resources

Cleanup the functions for allocation and setup of bus resources. Do
not allocate the same name for each resource but use a per-bus name.
Also provide means to cleanup all resources allocated by a bus.

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/pci.h |   4 +-
 arch/s390/pci/pci.c         | 147 +++++++++++++++++++++++++-------------------
 2 files changed, 86 insertions(+), 65 deletions(-)

diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h
index 1cc185da9d38..b9315c424628 100644
--- a/arch/s390/include/asm/pci.h
+++ b/arch/s390/include/asm/pci.h
@@ -63,9 +63,10 @@ enum zpci_state {
 };
 
 struct zpci_bar_struct {
+	struct resource *res;		/* bus resource */
 	u32		val;		/* bar start & 3 flag bits */
-	u8		size;		/* order 2 exponent */
 	u16		map_idx;	/* index into bar mapping array */
+	u8		size;		/* order 2 exponent */
 };
 
 /* Private data per function */
@@ -97,6 +98,7 @@ struct zpci_dev {
 	unsigned long	iommu_pages;
 	unsigned int	next_bit;
 
+	char res_name[16];
 	struct zpci_bar_struct bars[PCI_BAR_COUNT];
 
 	u64		start_dma;	/* Start of available DMA addresses */
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 0c9a17780e4b..63a086072edb 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -579,37 +579,6 @@ static void zpci_irq_exit(void)
 	unregister_adapter_interrupt(&zpci_airq);
 }
 
-static struct resource *zpci_alloc_bus_resource(unsigned long start, unsigned long size,
-						unsigned long flags, int domain)
-{
-	struct resource *r;
-	char *name;
-	int rc;
-
-	r = kzalloc(sizeof(*r), GFP_KERNEL);
-	if (!r)
-		return ERR_PTR(-ENOMEM);
-	r->start = start;
-	r->end = r->start + size - 1;
-	r->flags = flags;
-	r->parent = &iomem_resource;
-	name = kmalloc(18, GFP_KERNEL);
-	if (!name) {
-		kfree(r);
-		return ERR_PTR(-ENOMEM);
-	}
-	sprintf(name, "PCI Bus: %04x:%02x", domain, ZPCI_BUS_NR);
-	r->name = name;
-
-	rc = request_resource(&iomem_resource, r);
-	if (rc) {
-		kfree(r->name);
-		kfree(r);
-		return ERR_PTR(-ENOMEM);
-	}
-	return r;
-}
-
 static int zpci_alloc_iomap(struct zpci_dev *zdev)
 {
 	int entry;
@@ -633,6 +602,82 @@ static void zpci_free_iomap(struct zpci_dev *zdev, int entry)
 	spin_unlock(&zpci_iomap_lock);
 }
 
+static struct resource *__alloc_res(struct zpci_dev *zdev, unsigned long start,
+				    unsigned long size, unsigned long flags)
+{
+	struct resource *r;
+
+	r = kzalloc(sizeof(*r), GFP_KERNEL);
+	if (!r)
+		return NULL;
+
+	r->start = start;
+	r->end = r->start + size - 1;
+	r->flags = flags;
+	r->name = zdev->res_name;
+
+	if (request_resource(&iomem_resource, r)) {
+		kfree(r);
+		return NULL;
+	}
+	return r;
+}
+
+static int zpci_setup_bus_resources(struct zpci_dev *zdev,
+				    struct list_head *resources)
+{
+	unsigned long addr, size, flags;
+	struct resource *res;
+	int i, entry;
+
+	snprintf(zdev->res_name, sizeof(zdev->res_name),
+		 "PCI Bus %04x:%02x", zdev->domain, ZPCI_BUS_NR);
+
+	for (i = 0; i < PCI_BAR_COUNT; i++) {
+		if (!zdev->bars[i].size)
+			continue;
+		entry = zpci_alloc_iomap(zdev);
+		if (entry < 0)
+			return entry;
+		zdev->bars[i].map_idx = entry;
+
+		/* only MMIO is supported */
+		flags = IORESOURCE_MEM;
+		if (zdev->bars[i].val & 8)
+			flags |= IORESOURCE_PREFETCH;
+		if (zdev->bars[i].val & 4)
+			flags |= IORESOURCE_MEM_64;
+
+		addr = ZPCI_IOMAP_ADDR_BASE + ((u64) entry << 48);
+
+		size = 1UL << zdev->bars[i].size;
+
+		res = __alloc_res(zdev, addr, size, flags);
+		if (!res) {
+			zpci_free_iomap(zdev, entry);
+			return -ENOMEM;
+		}
+		zdev->bars[i].res = res;
+		pci_add_resource(resources, res);
+	}
+
+	return 0;
+}
+
+static void zpci_cleanup_bus_resources(struct zpci_dev *zdev)
+{
+	int i;
+
+	for (i = 0; i < PCI_BAR_COUNT; i++) {
+		if (!zdev->bars[i].size)
+			continue;
+
+		zpci_free_iomap(zdev, zdev->bars[i].map_idx);
+		release_resource(zdev->bars[i].res);
+		kfree(zdev->bars[i].res);
+	}
+}
+
 int pcibios_add_device(struct pci_dev *pdev)
 {
 	struct zpci_dev *zdev = get_zdev(pdev);
@@ -731,45 +776,19 @@ struct dev_pm_ops pcibios_pm_ops = {
 
 static int zpci_scan_bus(struct zpci_dev *zdev)
 {
-	struct resource *res;
 	LIST_HEAD(resources);
-	int i;
-
-	/* allocate mapping entry for each used bar */
-	for (i = 0; i < PCI_BAR_COUNT; i++) {
-		unsigned long addr, size, flags;
-		int entry;
-
-		if (!zdev->bars[i].size)
-			continue;
-		entry = zpci_alloc_iomap(zdev);
-		if (entry < 0)
-			return entry;
-		zdev->bars[i].map_idx = entry;
-
-		/* only MMIO is supported */
-		flags = IORESOURCE_MEM;
-		if (zdev->bars[i].val & 8)
-			flags |= IORESOURCE_PREFETCH;
-		if (zdev->bars[i].val & 4)
-			flags |= IORESOURCE_MEM_64;
-
-		addr = ZPCI_IOMAP_ADDR_BASE + ((u64) entry << 48);
-
-		size = 1UL << zdev->bars[i].size;
+	int ret;
 
-		res = zpci_alloc_bus_resource(addr, size, flags, zdev->domain);
-		if (IS_ERR(res)) {
-			zpci_free_iomap(zdev, entry);
-			return PTR_ERR(res);
-		}
-		pci_add_resource(&resources, res);
-	}
+	ret = zpci_setup_bus_resources(zdev, &resources);
+	if (ret)
+		return ret;
 
 	zdev->bus = pci_scan_root_bus(NULL, ZPCI_BUS_NR, &pci_root_ops,
 				      zdev, &resources);
-	if (!zdev->bus)
+	if (!zdev->bus) {
+		zpci_cleanup_bus_resources(zdev);
 		return -EIO;
+	}
 
 	zdev->bus->max_bus_speed = zdev->max_bus_speed;
 	return 0;
-- 
cgit 


From 7d594322b2e65f7e44e82474d17b2d549e22087c Mon Sep 17 00:00:00 2001
From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Tue, 12 Nov 2013 19:35:01 +0100
Subject: s390/pci: implement pcibios_remove_bus

Implement pcibios_remove_bus to free arch specific data when a pci
bus is deregistered. While at it remove a useless kzalloc/kfree
wrapper.

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/pci.h |  2 --
 arch/s390/pci/pci.c         | 69 +++++++++++++++++++++++----------------------
 arch/s390/pci/pci_clp.c     |  8 +++---
 3 files changed, 39 insertions(+), 40 deletions(-)

diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h
index b9315c424628..c129ab2ac731 100644
--- a/arch/s390/include/asm/pci.h
+++ b/arch/s390/include/asm/pci.h
@@ -124,12 +124,10 @@ static inline bool zdev_enabled(struct zpci_dev *zdev)
   Prototypes
 ----------------------------------------------------------------------------- */
 /* Base stuff */
-struct zpci_dev *zpci_alloc_device(void);
 int zpci_create_device(struct zpci_dev *);
 int zpci_enable_device(struct zpci_dev *);
 int zpci_disable_device(struct zpci_dev *);
 void zpci_stop_device(struct zpci_dev *);
-void zpci_free_device(struct zpci_dev *);
 int zpci_register_ioat(struct zpci_dev *, u8, u64, u64, u64);
 int zpci_unregister_ioat(struct zpci_dev *, u8);
 
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index 63a086072edb..bf7c73d71eef 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -530,20 +530,6 @@ static void zpci_unmap_resources(struct zpci_dev *zdev)
 	}
 }
 
-struct zpci_dev *zpci_alloc_device(void)
-{
-	struct zpci_dev *zdev;
-
-	/* Alloc memory for our private pci device data */
-	zdev = kzalloc(sizeof(*zdev), GFP_KERNEL);
-	return zdev ? : ERR_PTR(-ENOMEM);
-}
-
-void zpci_free_device(struct zpci_dev *zdev)
-{
-	kfree(zdev);
-}
-
 int pcibios_add_platform_entries(struct pci_dev *pdev)
 {
 	return zpci_sysfs_add_device(&pdev->dev);
@@ -774,26 +760,6 @@ struct dev_pm_ops pcibios_pm_ops = {
 };
 #endif /* CONFIG_HIBERNATE_CALLBACKS */
 
-static int zpci_scan_bus(struct zpci_dev *zdev)
-{
-	LIST_HEAD(resources);
-	int ret;
-
-	ret = zpci_setup_bus_resources(zdev, &resources);
-	if (ret)
-		return ret;
-
-	zdev->bus = pci_scan_root_bus(NULL, ZPCI_BUS_NR, &pci_root_ops,
-				      zdev, &resources);
-	if (!zdev->bus) {
-		zpci_cleanup_bus_resources(zdev);
-		return -EIO;
-	}
-
-	zdev->bus->max_bus_speed = zdev->max_bus_speed;
-	return 0;
-}
-
 static int zpci_alloc_domain(struct zpci_dev *zdev)
 {
 	spin_lock(&zpci_domain_lock);
@@ -814,6 +780,41 @@ static void zpci_free_domain(struct zpci_dev *zdev)
 	spin_unlock(&zpci_domain_lock);
 }
 
+void pcibios_remove_bus(struct pci_bus *bus)
+{
+	struct zpci_dev *zdev = get_zdev_by_bus(bus);
+
+	zpci_exit_slot(zdev);
+	zpci_cleanup_bus_resources(zdev);
+	zpci_free_domain(zdev);
+
+	spin_lock(&zpci_list_lock);
+	list_del(&zdev->entry);
+	spin_unlock(&zpci_list_lock);
+
+	kfree(zdev);
+}
+
+static int zpci_scan_bus(struct zpci_dev *zdev)
+{
+	LIST_HEAD(resources);
+	int ret;
+
+	ret = zpci_setup_bus_resources(zdev, &resources);
+	if (ret)
+		return ret;
+
+	zdev->bus = pci_scan_root_bus(NULL, ZPCI_BUS_NR, &pci_root_ops,
+				      zdev, &resources);
+	if (!zdev->bus) {
+		zpci_cleanup_bus_resources(zdev);
+		return -EIO;
+	}
+
+	zdev->bus->max_bus_speed = zdev->max_bus_speed;
+	return 0;
+}
+
 int zpci_enable_device(struct zpci_dev *zdev)
 {
 	int rc;
diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c
index 84147984224a..c747394029ee 100644
--- a/arch/s390/pci/pci_clp.c
+++ b/arch/s390/pci/pci_clp.c
@@ -155,9 +155,9 @@ int clp_add_pci_device(u32 fid, u32 fh, int configured)
 	int rc;
 
 	zpci_dbg(3, "add fid:%x, fh:%x, c:%d\n", fid, fh, configured);
-	zdev = zpci_alloc_device();
-	if (IS_ERR(zdev))
-		return PTR_ERR(zdev);
+	zdev = kzalloc(sizeof(*zdev), GFP_KERNEL);
+	if (!zdev)
+		return -ENOMEM;
 
 	zdev->fh = fh;
 	zdev->fid = fid;
@@ -178,7 +178,7 @@ int clp_add_pci_device(u32 fid, u32 fh, int configured)
 	return 0;
 
 error:
-	zpci_free_device(zdev);
+	kfree(zdev);
 	return rc;
 }
 
-- 
cgit 


From f8049e3e869f6de644e4302b3d85d06e185ddced Mon Sep 17 00:00:00 2001
From: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Date: Wed, 13 Nov 2013 10:38:27 +0100
Subject: s390/sclp: Move declarations for sclp_sdias into separate header file

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 drivers/s390/char/sclp_sdias.c | 78 ++++++++++++------------------------------
 drivers/s390/char/sclp_sdias.h | 46 +++++++++++++++++++++++++
 2 files changed, 68 insertions(+), 56 deletions(-)
 create mode 100644 drivers/s390/char/sclp_sdias.h

diff --git a/drivers/s390/char/sclp_sdias.c b/drivers/s390/char/sclp_sdias.c
index b1032931a1c4..561a0414b352 100644
--- a/drivers/s390/char/sclp_sdias.c
+++ b/drivers/s390/char/sclp_sdias.c
@@ -1,7 +1,7 @@
 /*
- * Sclp "store data in absolut storage"
+ * SCLP "store data in absolute storage"
  *
- * Copyright IBM Corp. 2003, 2007
+ * Copyright IBM Corp. 2003, 2013
  * Author(s): Michael Holzheu
  */
 
@@ -14,6 +14,7 @@
 #include <asm/debug.h>
 #include <asm/ipl.h>
 
+#include "sclp_sdias.h"
 #include "sclp.h"
 #include "sclp_rw.h"
 
@@ -22,46 +23,12 @@
 #define SDIAS_RETRIES 300
 #define SDIAS_SLEEP_TICKS 50
 
-#define EQ_STORE_DATA	0x0
-#define EQ_SIZE		0x1
-#define DI_FCP_DUMP	0x0
-#define ASA_SIZE_32	0x0
-#define ASA_SIZE_64	0x1
-#define EVSTATE_ALL_STORED	0x0
-#define EVSTATE_NO_DATA		0x3
-#define EVSTATE_PART_STORED	0x10
-
 static struct debug_info *sdias_dbf;
 
 static struct sclp_register sclp_sdias_register = {
 	.send_mask = EVTYP_SDIAS_MASK,
 };
 
-struct sdias_evbuf {
-	struct	evbuf_header hdr;
-	u8	event_qual;
-	u8	data_id;
-	u64	reserved2;
-	u32	event_id;
-	u16	reserved3;
-	u8	asa_size;
-	u8	event_status;
-	u32	reserved4;
-	u32	blk_cnt;
-	u64	asa;
-	u32	reserved5;
-	u32	fbn;
-	u32	reserved6;
-	u32	lbn;
-	u16	reserved7;
-	u16	dbs;
-} __attribute__((packed));
-
-struct sdias_sccb {
-	struct sccb_header  hdr;
-	struct sdias_evbuf  evbuf;
-} __attribute__((packed));
-
 static struct sdias_sccb sccb __attribute__((aligned(4096)));
 static struct sdias_evbuf sdias_evbuf;
 
@@ -148,8 +115,8 @@ int sclp_sdias_blk_count(void)
 	sccb.hdr.length = sizeof(sccb);
 	sccb.evbuf.hdr.length = sizeof(struct sdias_evbuf);
 	sccb.evbuf.hdr.type = EVTYP_SDIAS;
-	sccb.evbuf.event_qual = EQ_SIZE;
-	sccb.evbuf.data_id = DI_FCP_DUMP;
+	sccb.evbuf.event_qual = SDIAS_EQ_SIZE;
+	sccb.evbuf.data_id = SDIAS_DI_FCP_DUMP;
 	sccb.evbuf.event_id = 4712;
 	sccb.evbuf.dbs = 1;
 
@@ -208,13 +175,13 @@ int sclp_sdias_copy(void *dest, int start_blk, int nr_blks)
 	sccb.evbuf.hdr.length = sizeof(struct sdias_evbuf);
 	sccb.evbuf.hdr.type = EVTYP_SDIAS;
 	sccb.evbuf.hdr.flags = 0;
-	sccb.evbuf.event_qual = EQ_STORE_DATA;
-	sccb.evbuf.data_id = DI_FCP_DUMP;
+	sccb.evbuf.event_qual = SDIAS_EQ_STORE_DATA;
+	sccb.evbuf.data_id = SDIAS_DI_FCP_DUMP;
 	sccb.evbuf.event_id = 4712;
 #ifdef CONFIG_64BIT
-	sccb.evbuf.asa_size = ASA_SIZE_64;
+	sccb.evbuf.asa_size = SDIAS_ASA_SIZE_64;
 #else
-	sccb.evbuf.asa_size = ASA_SIZE_32;
+	sccb.evbuf.asa_size = SDIAS_ASA_SIZE_32;
 #endif
 	sccb.evbuf.event_status = 0;
 	sccb.evbuf.blk_cnt = nr_blks;
@@ -240,20 +207,19 @@ int sclp_sdias_copy(void *dest, int start_blk, int nr_blks)
 	}
 
 	switch (sdias_evbuf.event_status) {
-		case EVSTATE_ALL_STORED:
-			TRACE("all stored\n");
-			break;
-		case EVSTATE_PART_STORED:
-			TRACE("part stored: %i\n", sdias_evbuf.blk_cnt);
-			break;
-		case EVSTATE_NO_DATA:
-			TRACE("no data\n");
-			/* fall through */
-		default:
-			pr_err("Error from SCLP while copying hsa. "
-			       "Event status = %x\n",
-			       sdias_evbuf.event_status);
-			rc = -EIO;
+	case SDIAS_EVSTATE_ALL_STORED:
+		TRACE("all stored\n");
+		break;
+	case SDIAS_EVSTATE_PART_STORED:
+		TRACE("part stored: %i\n", sdias_evbuf.blk_cnt);
+		break;
+	case SDIAS_EVSTATE_NO_DATA:
+		TRACE("no data\n");
+		/* fall through */
+	default:
+		pr_err("Error from SCLP while copying hsa. Event status = %x\n",
+		       sdias_evbuf.event_status);
+		rc = -EIO;
 	}
 out:
 	mutex_unlock(&sdias_mutex);
diff --git a/drivers/s390/char/sclp_sdias.h b/drivers/s390/char/sclp_sdias.h
new file mode 100644
index 000000000000..f2431c414150
--- /dev/null
+++ b/drivers/s390/char/sclp_sdias.h
@@ -0,0 +1,46 @@
+/*
+ * SCLP "store data in absolute storage"
+ *
+ * Copyright IBM Corp. 2003, 2013
+ */
+
+#ifndef SCLP_SDIAS_H
+#define SCLP_SDIAS_H
+
+#include "sclp.h"
+
+#define SDIAS_EQ_STORE_DATA		0x0
+#define SDIAS_EQ_SIZE			0x1
+#define SDIAS_DI_FCP_DUMP		0x0
+#define SDIAS_ASA_SIZE_32		0x0
+#define SDIAS_ASA_SIZE_64		0x1
+#define SDIAS_EVSTATE_ALL_STORED	0x0
+#define SDIAS_EVSTATE_NO_DATA		0x3
+#define SDIAS_EVSTATE_PART_STORED	0x10
+
+struct sdias_evbuf {
+	struct	evbuf_header hdr;
+	u8	event_qual;
+	u8	data_id;
+	u64	reserved2;
+	u32	event_id;
+	u16	reserved3;
+	u8	asa_size;
+	u8	event_status;
+	u32	reserved4;
+	u32	blk_cnt;
+	u64	asa;
+	u32	reserved5;
+	u32	fbn;
+	u32	reserved6;
+	u32	lbn;
+	u16	reserved7;
+	u16	dbs;
+} __packed;
+
+struct sdias_sccb {
+	struct sccb_header	hdr;
+	struct sdias_evbuf	evbuf;
+} __packed;
+
+#endif /* SCLP_SDIAS_H */
-- 
cgit 


From e657d8fe2faf49ed5d35e2325bd0f1712b8058cd Mon Sep 17 00:00:00 2001
From: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Date: Wed, 13 Nov 2013 10:38:27 +0100
Subject: s390/sclp: Determine HSA size dynamically for zfcpdump

Currently we have hardcoded the HSA size to 32 MiB. With this patch the
HSA size is determined dynamically via SCLP in early.c.

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/sclp.h   |   2 +
 arch/s390/include/asm/setup.h  |   3 --
 arch/s390/kernel/crash_dump.c  |  22 ++++----
 arch/s390/kernel/early.c       |   1 +
 arch/s390/kernel/setup.c       |   7 +--
 drivers/s390/char/Makefile     |   3 +-
 drivers/s390/char/sclp.h       |   1 +
 drivers/s390/char/sclp_cmd.c   |   2 +-
 drivers/s390/char/sclp_early.c | 111 +++++++++++++++++++++++++++++++++++++++++
 drivers/s390/char/zcore.c      |  22 +++-----
 10 files changed, 142 insertions(+), 32 deletions(-)
 create mode 100644 drivers/s390/char/sclp_early.c

diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
index 7dc7f9c63b65..593069201bb9 100644
--- a/arch/s390/include/asm/sclp.h
+++ b/arch/s390/include/asm/sclp.h
@@ -57,5 +57,7 @@ bool sclp_has_vt220(void);
 int sclp_pci_configure(u32 fid);
 int sclp_pci_deconfigure(u32 fid);
 int memcpy_hsa(void *dest, unsigned long src, size_t count, int mode);
+void sclp_hsa_size_detect(void);
+unsigned long sclp_get_hsa_size(void);
 
 #endif /* _ASM_S390_SCLP_H */
diff --git a/arch/s390/include/asm/setup.h b/arch/s390/include/asm/setup.h
index df802ee14af6..94cfbe442f12 100644
--- a/arch/s390/include/asm/setup.h
+++ b/arch/s390/include/asm/setup.h
@@ -107,9 +107,6 @@ void create_mem_hole(struct mem_chunk mem_chunk[], unsigned long addr,
 #define MACHINE_HAS_RRBM	(S390_lowcore.machine_flags & MACHINE_FLAG_RRBM)
 #endif /* CONFIG_64BIT */
 
-#define ZFCPDUMP_HSA_SIZE	(32UL<<20)
-#define ZFCPDUMP_HSA_SIZE_MAX	(64UL<<20)
-
 /*
  * Console mode. Override with conmode=
  */
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
index f45b2ab0cb81..d7658c4b2ed5 100644
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -95,7 +95,7 @@ static void *elfcorehdr_newmem;
 /*
  * Copy one page from zfcpdump "oldmem"
  *
- * For pages below ZFCPDUMP_HSA_SIZE memory from the HSA is copied. Otherwise
+ * For pages below HSA size memory from the HSA is copied. Otherwise
  * real memory copy is used.
  */
 static ssize_t copy_oldmem_page_zfcpdump(char *buf, size_t csize,
@@ -103,7 +103,7 @@ static ssize_t copy_oldmem_page_zfcpdump(char *buf, size_t csize,
 {
 	int rc;
 
-	if (src < ZFCPDUMP_HSA_SIZE) {
+	if (src < sclp_get_hsa_size()) {
 		rc = memcpy_hsa(buf, src, csize, userbuf);
 	} else {
 		if (userbuf)
@@ -188,18 +188,19 @@ static int remap_oldmem_pfn_range_kdump(struct vm_area_struct *vma,
 /*
  * Remap "oldmem" for zfcpdump
  *
- * We only map available memory above ZFCPDUMP_HSA_SIZE. Memory below
- * ZFCPDUMP_HSA_SIZE is read on demand using the copy_oldmem_page() function.
+ * We only map available memory above HSA size. Memory below HSA size
+ * is read on demand using the copy_oldmem_page() function.
  */
 static int remap_oldmem_pfn_range_zfcpdump(struct vm_area_struct *vma,
 					   unsigned long from,
 					   unsigned long pfn,
 					   unsigned long size, pgprot_t prot)
 {
+	unsigned long hsa_end = sclp_get_hsa_size();
 	unsigned long size_hsa;
 
-	if (pfn < ZFCPDUMP_HSA_SIZE >> PAGE_SHIFT) {
-		size_hsa = min(size, ZFCPDUMP_HSA_SIZE - (pfn << PAGE_SHIFT));
+	if (pfn < hsa_end >> PAGE_SHIFT) {
+		size_hsa = min(size, hsa_end - (pfn << PAGE_SHIFT));
 		if (size == size_hsa)
 			return 0;
 		size -= size_hsa;
@@ -238,9 +239,9 @@ int copy_from_oldmem(void *dest, void *src, size_t count)
 				return rc;
 		}
 	} else {
-		if ((unsigned long) src < ZFCPDUMP_HSA_SIZE) {
-			copied = min(count,
-				     ZFCPDUMP_HSA_SIZE - (unsigned long) src);
+		unsigned long hsa_end = sclp_get_hsa_size();
+		if ((unsigned long) src < hsa_end) {
+			copied = min(count, hsa_end - (unsigned long) src);
 			rc = memcpy_hsa(dest, (unsigned long) src, copied, 0);
 			if (rc)
 				return rc;
@@ -580,6 +581,9 @@ int elfcorehdr_alloc(unsigned long long *addr, unsigned long long *size)
 	/* If elfcorehdr= has been passed via cmdline, we use that one */
 	if (elfcorehdr_addr != ELFCORE_ADDR_MAX)
 		return 0;
+	/* If we cannot get HSA size for zfcpdump return error */
+	if (ipl_info.type == IPL_TYPE_FCP_DUMP && !sclp_get_hsa_size())
+		return -ENODEV;
 	mem_chunk_cnt = get_mem_chunk_cnt();
 
 	alloc_size = 0x1000 + get_cpu_cnt() * 0x300 +
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index 96543ac400a7..c0462f45cf1b 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -484,6 +484,7 @@ void __init startup_init(void)
 	detect_machine_facilities();
 	setup_topology();
 	sclp_facilities_detect();
+	sclp_hsa_size_detect();
 #ifdef CONFIG_DYNAMIC_FTRACE
 	S390_lowcore.ftrace_func = (unsigned long)ftrace_caller;
 #endif
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index ffe1c53264a7..4444875266ee 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -471,8 +471,9 @@ static void __init setup_memory_end(void)
 
 
 #ifdef CONFIG_ZFCPDUMP
-	if (ipl_info.type == IPL_TYPE_FCP_DUMP && !OLDMEM_BASE) {
-		memory_end = ZFCPDUMP_HSA_SIZE;
+	if (ipl_info.type == IPL_TYPE_FCP_DUMP &&
+	    !OLDMEM_BASE && sclp_get_hsa_size()) {
+		memory_end = sclp_get_hsa_size();
 		memory_end_set = 1;
 	}
 #endif
@@ -586,7 +587,7 @@ static unsigned long __init find_crash_base(unsigned long crash_size,
 		crash_base = (chunk->addr + chunk->size) - crash_size;
 		if (crash_base < crash_size)
 			continue;
-		if (crash_base < ZFCPDUMP_HSA_SIZE_MAX)
+		if (crash_base < sclp_get_hsa_size())
 			continue;
 		if (crash_base < (unsigned long) INITRD_START + INITRD_SIZE)
 			continue;
diff --git a/drivers/s390/char/Makefile b/drivers/s390/char/Makefile
index 17821a026c9c..b69ab17f13fa 100644
--- a/drivers/s390/char/Makefile
+++ b/drivers/s390/char/Makefile
@@ -3,7 +3,8 @@
 #
 
 obj-y += ctrlchar.o keyboard.o defkeymap.o sclp.o sclp_rw.o sclp_quiesce.o \
-	 sclp_cmd.o sclp_config.o sclp_cpi_sys.o sclp_ocf.o sclp_ctl.o
+	 sclp_cmd.o sclp_config.o sclp_cpi_sys.o sclp_ocf.o sclp_ctl.o \
+	 sclp_early.o
 
 obj-$(CONFIG_TN3270) += raw3270.o
 obj-$(CONFIG_TN3270_CONSOLE) += con3270.o
diff --git a/drivers/s390/char/sclp.h b/drivers/s390/char/sclp.h
index 40d1406289ed..9cb8076f66c4 100644
--- a/drivers/s390/char/sclp.h
+++ b/drivers/s390/char/sclp.h
@@ -172,6 +172,7 @@ int sclp_deactivate(void);
 int sclp_reactivate(void);
 int sclp_service_call(sclp_cmdw_t command, void *sccb);
 int sclp_sync_request(sclp_cmdw_t command, void *sccb);
+int __init sclp_cmd_sync_early(sclp_cmdw_t cmd, void *sccb);
 
 int sclp_sdias_init(void);
 void sclp_sdias_exit(void);
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index 77df9cb00688..5bbe6db988b9 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -59,7 +59,7 @@ static u8 sclp_fac84;
 static unsigned long long rzm;
 static unsigned long long rnmax;
 
-static int __init sclp_cmd_sync_early(sclp_cmdw_t cmd, void *sccb)
+int __init sclp_cmd_sync_early(sclp_cmdw_t cmd, void *sccb)
 {
 	int rc;
 
diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c
new file mode 100644
index 000000000000..775112964eef
--- /dev/null
+++ b/drivers/s390/char/sclp_early.c
@@ -0,0 +1,111 @@
+/*
+ * SCLP early driver
+ *
+ * Copyright IBM Corp. 2013
+ */
+
+#define KMSG_COMPONENT "sclp_early"
+#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
+
+#include <asm/sclp.h>
+#include <asm/ipl.h>
+#include "sclp_sdias.h"
+#include "sclp.h"
+
+static __initdata char sccb_early[PAGE_SIZE] __aligned(PAGE_SIZE);
+static unsigned long sclp_hsa_size;
+
+static int __init sclp_cmd_early(sclp_cmdw_t cmd, void *sccb)
+{
+	int rc;
+
+	do {
+		rc = sclp_cmd_sync_early(cmd, sccb);
+	} while (rc == -EBUSY);
+
+	if (rc)
+		return -EIO;
+	if (((struct sccb_header *) sccb)->response_code != 0x0020)
+		return -EIO;
+	return 0;
+}
+
+static void __init sccb_init_eq_size(struct sdias_sccb *sccb)
+{
+	memset(sccb, 0, sizeof(*sccb));
+
+	sccb->hdr.length = sizeof(*sccb);
+	sccb->evbuf.hdr.length = sizeof(struct sdias_evbuf);
+	sccb->evbuf.hdr.type = EVTYP_SDIAS;
+	sccb->evbuf.event_qual = SDIAS_EQ_SIZE;
+	sccb->evbuf.data_id = SDIAS_DI_FCP_DUMP;
+	sccb->evbuf.event_id = 4712;
+	sccb->evbuf.dbs = 1;
+}
+
+static int __init sclp_set_event_mask(unsigned long receive_mask,
+				      unsigned long send_mask)
+{
+	struct init_sccb *sccb = (void *) &sccb_early;
+
+	memset(sccb, 0, sizeof(*sccb));
+	sccb->header.length = sizeof(*sccb);
+	sccb->mask_length = sizeof(sccb_mask_t);
+	sccb->receive_mask = receive_mask;
+	sccb->send_mask = send_mask;
+	return sclp_cmd_early(SCLP_CMDW_WRITE_EVENT_MASK, sccb);
+}
+
+static long __init sclp_hsa_size_init(void)
+{
+	struct sdias_sccb *sccb = (void *) &sccb_early;
+
+	sccb_init_eq_size(sccb);
+	if (sclp_cmd_early(SCLP_CMDW_WRITE_EVENT_DATA, sccb))
+		return -EIO;
+	if (sccb->evbuf.blk_cnt != 0)
+		return (sccb->evbuf.blk_cnt - 1) * PAGE_SIZE;
+	return 0;
+}
+
+static long __init sclp_hsa_copy_wait(void)
+{
+	struct sccb_header *sccb = (void *) &sccb_early;
+
+	memset(sccb, 0, PAGE_SIZE);
+	sccb->length = PAGE_SIZE;
+	if (sclp_cmd_early(SCLP_CMDW_READ_EVENT_DATA, sccb))
+		return -EIO;
+	return (((struct sdias_sccb *) sccb)->evbuf.blk_cnt - 1) * PAGE_SIZE;
+}
+
+unsigned long sclp_get_hsa_size(void)
+{
+	return sclp_hsa_size;
+}
+
+void __init sclp_hsa_size_detect(void)
+{
+	long size;
+
+	/* First try synchronous interface (LPAR) */
+	if (sclp_set_event_mask(0, 0x40000010))
+		return;
+	size = sclp_hsa_size_init();
+	if (size < 0)
+		return;
+	if (size != 0)
+		goto out;
+	/* Then try asynchronous interface (z/VM) */
+	if (sclp_set_event_mask(0x00000010, 0x40000010))
+		return;
+	size = sclp_hsa_size_init();
+	if (size < 0)
+		return;
+	size = sclp_hsa_copy_wait();
+	if (size < 0)
+		return;
+out:
+	sclp_set_event_mask(0, 0);
+	sclp_hsa_size = size;
+}
diff --git a/drivers/s390/char/zcore.c b/drivers/s390/char/zcore.c
index ffb1fcf0bf5b..3d8e4d63f514 100644
--- a/drivers/s390/char/zcore.c
+++ b/drivers/s390/char/zcore.c
@@ -328,9 +328,9 @@ static ssize_t zcore_read(struct file *file, char __user *buf, size_t count,
 	mem_offs = 0;
 
 	/* Copy from HSA data */
-	if (*ppos < (ZFCPDUMP_HSA_SIZE + HEADER_SIZE)) {
-		size = min((count - hdr_count), (size_t) (ZFCPDUMP_HSA_SIZE
-			   - mem_start));
+	if (*ppos < sclp_get_hsa_size() + HEADER_SIZE) {
+		size = min((count - hdr_count),
+			   (size_t) (sclp_get_hsa_size() - mem_start));
 		rc = memcpy_hsa_user(buf + hdr_count, mem_start, size);
 		if (rc)
 			goto fail;
@@ -490,7 +490,7 @@ static ssize_t zcore_hsa_read(struct file *filp, char __user *buf,
 	static char str[18];
 
 	if (hsa_available)
-		snprintf(str, sizeof(str), "%lx\n", ZFCPDUMP_HSA_SIZE);
+		snprintf(str, sizeof(str), "%lx\n", sclp_get_hsa_size());
 	else
 		snprintf(str, sizeof(str), "0\n");
 	return simple_read_from_buffer(buf, count, ppos, str, strlen(str));
@@ -584,17 +584,9 @@ static int __init sys_info_init(enum arch_id arch, unsigned long mem_end)
 
 static int __init check_sdias(void)
 {
-	int rc, act_hsa_size;
-
-	rc = sclp_sdias_blk_count();
-	if (rc < 0) {
+	if (!sclp_get_hsa_size()) {
 		TRACE("Could not determine HSA size\n");
-		return rc;
-	}
-	act_hsa_size = (rc - 1) * PAGE_SIZE;
-	if (act_hsa_size < ZFCPDUMP_HSA_SIZE) {
-		TRACE("HSA size too small: %i\n", act_hsa_size);
-		return -EINVAL;
+		return -ENODEV;
 	}
 	return 0;
 }
@@ -662,7 +654,7 @@ static int __init zcore_reipl_init(void)
 	ipl_block = (void *) __get_free_page(GFP_KERNEL);
 	if (!ipl_block)
 		return -ENOMEM;
-	if (ipib_info.ipib < ZFCPDUMP_HSA_SIZE)
+	if (ipib_info.ipib < sclp_get_hsa_size())
 		rc = memcpy_hsa_kernel(ipl_block, ipib_info.ipib, PAGE_SIZE);
 	else
 		rc = memcpy_real(ipl_block, (void *) ipib_info.ipib, PAGE_SIZE);
-- 
cgit 


From acf6a004e6a35dad17032e3b7c5a046c29957e65 Mon Sep 17 00:00:00 2001
From: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Date: Wed, 13 Nov 2013 10:38:27 +0100
Subject: s390/sclp: Move early code from sclp_cmd.c to sclp_early.c

The early SCLP driver code in sclp_cmd.c belongs to sclp_early.c
because it is independent from the 'normal' SCLP driver. So move
it to sclp_early.c

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/ctl_reg.h |   2 +
 drivers/s390/char/sclp.h        |   6 +-
 drivers/s390/char/sclp_cmd.c    | 180 ++--------------------------------------
 drivers/s390/char/sclp_early.c  | 162 ++++++++++++++++++++++++++++++++++++
 4 files changed, 178 insertions(+), 172 deletions(-)

diff --git a/arch/s390/include/asm/ctl_reg.h b/arch/s390/include/asm/ctl_reg.h
index 9b69c0befdca..4e63f1a13600 100644
--- a/arch/s390/include/asm/ctl_reg.h
+++ b/arch/s390/include/asm/ctl_reg.h
@@ -7,6 +7,8 @@
 #ifndef __ASM_CTL_REG_H
 #define __ASM_CTL_REG_H
 
+#include <linux/bug.h>
+
 #ifdef CONFIG_64BIT
 # define __CTL_LOAD	"lctlg"
 # define __CTL_STORE	"stctg"
diff --git a/drivers/s390/char/sclp.h b/drivers/s390/char/sclp.h
index 9cb8076f66c4..6fbe09686d18 100644
--- a/drivers/s390/char/sclp.h
+++ b/drivers/s390/char/sclp.h
@@ -99,6 +99,7 @@ struct init_sccb {
 } __attribute__((packed));
 
 extern u64 sclp_facilities;
+
 #define SCLP_HAS_CHP_INFO	(sclp_facilities & 0x8000000000000000ULL)
 #define SCLP_HAS_CHP_RECONFIG	(sclp_facilities & 0x2000000000000000ULL)
 #define SCLP_HAS_CPU_INFO	(sclp_facilities & 0x0800000000000000ULL)
@@ -172,7 +173,6 @@ int sclp_deactivate(void);
 int sclp_reactivate(void);
 int sclp_service_call(sclp_cmdw_t command, void *sccb);
 int sclp_sync_request(sclp_cmdw_t command, void *sccb);
-int __init sclp_cmd_sync_early(sclp_cmdw_t cmd, void *sccb);
 
 int sclp_sdias_init(void);
 void sclp_sdias_exit(void);
@@ -180,6 +180,10 @@ void sclp_sdias_exit(void);
 extern int sclp_console_pages;
 extern int sclp_console_drop;
 extern unsigned long sclp_console_full;
+extern u8 sclp_fac84;
+extern unsigned long long sclp_rzm;
+extern unsigned long long sclp_rnmax;
+extern __initdata int sclp_early_read_info_sccb_valid;
 
 /* useful inlines */
 
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index 5bbe6db988b9..eaa21d542c5c 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -28,168 +28,6 @@
 
 #include "sclp.h"
 
-#define SCLP_CMDW_READ_SCP_INFO		0x00020001
-#define SCLP_CMDW_READ_SCP_INFO_FORCED	0x00120001
-
-struct read_info_sccb {
-	struct	sccb_header header;	/* 0-7 */
-	u16	rnmax;			/* 8-9 */
-	u8	rnsize;			/* 10 */
-	u8	_reserved0[24 - 11];	/* 11-15 */
-	u8	loadparm[8];		/* 24-31 */
-	u8	_reserved1[48 - 32];	/* 32-47 */
-	u64	facilities;		/* 48-55 */
-	u8	_reserved2[84 - 56];	/* 56-83 */
-	u8	fac84;			/* 84 */
-	u8	fac85;			/* 85 */
-	u8	_reserved3[91 - 86];	/* 86-90 */
-	u8	flags;			/* 91 */
-	u8	_reserved4[100 - 92];	/* 92-99 */
-	u32	rnsize2;		/* 100-103 */
-	u64	rnmax2;			/* 104-111 */
-	u8	_reserved5[4096 - 112];	/* 112-4095 */
-} __attribute__((packed, aligned(PAGE_SIZE)));
-
-static struct init_sccb __initdata early_event_mask_sccb __aligned(PAGE_SIZE);
-static struct read_info_sccb __initdata early_read_info_sccb;
-static int __initdata early_read_info_sccb_valid;
-
-u64 sclp_facilities;
-static u8 sclp_fac84;
-static unsigned long long rzm;
-static unsigned long long rnmax;
-
-int __init sclp_cmd_sync_early(sclp_cmdw_t cmd, void *sccb)
-{
-	int rc;
-
-	__ctl_set_bit(0, 9);
-	rc = sclp_service_call(cmd, sccb);
-	if (rc)
-		goto out;
-	__load_psw_mask(PSW_DEFAULT_KEY | PSW_MASK_BASE | PSW_MASK_EA |
-			PSW_MASK_BA | PSW_MASK_EXT | PSW_MASK_WAIT);
-	local_irq_disable();
-out:
-	/* Contents of the sccb might have changed. */
-	barrier();
-	__ctl_clear_bit(0, 9);
-	return rc;
-}
-
-static void __init sclp_read_info_early(void)
-{
-	int rc;
-	int i;
-	struct read_info_sccb *sccb;
-	sclp_cmdw_t commands[] = {SCLP_CMDW_READ_SCP_INFO_FORCED,
-				  SCLP_CMDW_READ_SCP_INFO};
-
-	sccb = &early_read_info_sccb;
-	for (i = 0; i < ARRAY_SIZE(commands); i++) {
-		do {
-			memset(sccb, 0, sizeof(*sccb));
-			sccb->header.length = sizeof(*sccb);
-			sccb->header.function_code = 0x80;
-			sccb->header.control_mask[2] = 0x80;
-			rc = sclp_cmd_sync_early(commands[i], sccb);
-		} while (rc == -EBUSY);
-
-		if (rc)
-			break;
-		if (sccb->header.response_code == 0x10) {
-			early_read_info_sccb_valid = 1;
-			break;
-		}
-		if (sccb->header.response_code != 0x1f0)
-			break;
-	}
-}
-
-static void __init sclp_event_mask_early(void)
-{
-	struct init_sccb *sccb = &early_event_mask_sccb;
-	int rc;
-
-	do {
-		memset(sccb, 0, sizeof(*sccb));
-		sccb->header.length = sizeof(*sccb);
-		sccb->mask_length = sizeof(sccb_mask_t);
-		rc = sclp_cmd_sync_early(SCLP_CMDW_WRITE_EVENT_MASK, sccb);
-	} while (rc == -EBUSY);
-}
-
-void __init sclp_facilities_detect(void)
-{
-	struct read_info_sccb *sccb;
-
-	sclp_read_info_early();
-	if (!early_read_info_sccb_valid)
-		return;
-
-	sccb = &early_read_info_sccb;
-	sclp_facilities = sccb->facilities;
-	sclp_fac84 = sccb->fac84;
-	if (sccb->fac85 & 0x02)
-		S390_lowcore.machine_flags |= MACHINE_FLAG_ESOP;
-	rnmax = sccb->rnmax ? sccb->rnmax : sccb->rnmax2;
-	rzm = sccb->rnsize ? sccb->rnsize : sccb->rnsize2;
-	rzm <<= 20;
-
-	sclp_event_mask_early();
-}
-
-bool __init sclp_has_linemode(void)
-{
-	struct init_sccb *sccb = &early_event_mask_sccb;
-
-	if (sccb->header.response_code != 0x20)
-		return 0;
-	if (!(sccb->sclp_send_mask & (EVTYP_OPCMD_MASK | EVTYP_PMSGCMD_MASK)))
-		return 0;
-	if (!(sccb->sclp_receive_mask & (EVTYP_MSG_MASK | EVTYP_PMSGCMD_MASK)))
-		return 0;
-	return 1;
-}
-
-bool __init sclp_has_vt220(void)
-{
-	struct init_sccb *sccb = &early_event_mask_sccb;
-
-	if (sccb->header.response_code != 0x20)
-		return 0;
-	if (sccb->sclp_send_mask & EVTYP_VT220MSG_MASK)
-		return 1;
-	return 0;
-}
-
-unsigned long long sclp_get_rnmax(void)
-{
-	return rnmax;
-}
-
-unsigned long long sclp_get_rzm(void)
-{
-	return rzm;
-}
-
-/*
- * This function will be called after sclp_facilities_detect(), which gets
- * called from early.c code. Therefore the sccb should have valid contents.
- */
-void __init sclp_get_ipl_info(struct sclp_ipl_info *info)
-{
-	struct read_info_sccb *sccb;
-
-	if (!early_read_info_sccb_valid)
-		return;
-	sccb = &early_read_info_sccb;
-	info->is_valid = 1;
-	if (sccb->flags & 0x2)
-		info->has_dump = 1;
-	memcpy(&info->loadparm, &sccb->loadparm, LOADPARM_LEN);
-}
-
 static void sclp_sync_callback(struct sclp_req *req, void *data)
 {
 	struct completion *completion = data;
@@ -356,14 +194,14 @@ struct assign_storage_sccb {
 
 int arch_get_memory_phys_device(unsigned long start_pfn)
 {
-	if (!rzm)
+	if (!sclp_rzm)
 		return 0;
-	return PFN_PHYS(start_pfn) >> ilog2(rzm);
+	return PFN_PHYS(start_pfn) >> ilog2(sclp_rzm);
 }
 
 static unsigned long long rn2addr(u16 rn)
 {
-	return (unsigned long long) (rn - 1) * rzm;
+	return (unsigned long long) (rn - 1) * sclp_rzm;
 }
 
 static int do_assign_storage(sclp_cmdw_t cmd, u16 rn)
@@ -404,7 +242,7 @@ static int sclp_assign_storage(u16 rn)
 	if (rc)
 		return rc;
 	start = rn2addr(rn);
-	storage_key_init_range(start, start + rzm);
+	storage_key_init_range(start, start + sclp_rzm);
 	return 0;
 }
 
@@ -462,7 +300,7 @@ static int sclp_mem_change_state(unsigned long start, unsigned long size,
 		istart = rn2addr(incr->rn);
 		if (start + size - 1 < istart)
 			break;
-		if (start > istart + rzm - 1)
+		if (start > istart + sclp_rzm - 1)
 			continue;
 		if (online)
 			rc |= sclp_assign_storage(incr->rn);
@@ -526,7 +364,7 @@ static void __init add_memory_merged(u16 rn)
 	if (!first_rn)
 		goto skip_add;
 	start = rn2addr(first_rn);
-	size = (unsigned long long ) num * rzm;
+	size = (unsigned long long) num * sclp_rzm;
 	if (start >= VMEM_MAX_PHYS)
 		goto skip_add;
 	if (start + size > VMEM_MAX_PHYS)
@@ -574,7 +412,7 @@ static void __init insert_increment(u16 rn, int standby, int assigned)
 	}
 	if (!assigned)
 		new_incr->rn = last_rn + 1;
-	if (new_incr->rn > rnmax) {
+	if (new_incr->rn > sclp_rnmax) {
 		kfree(new_incr);
 		return;
 	}
@@ -617,7 +455,7 @@ static int __init sclp_detect_standby_memory(void)
 
 	if (OLDMEM_BASE) /* No standby memory in kdump mode */
 		return 0;
-	if (!early_read_info_sccb_valid)
+	if (!sclp_early_read_info_sccb_valid)
 		return 0;
 	if ((sclp_facilities & 0xe00000000000ULL) != 0xe00000000000ULL)
 		return 0;
@@ -661,7 +499,7 @@ static int __init sclp_detect_standby_memory(void)
 	}
 	if (rc || list_empty(&sclp_mem_list))
 		goto out;
-	for (i = 1; i <= rnmax - assigned; i++)
+	for (i = 1; i <= sclp_rnmax - assigned; i++)
 		insert_increment(0, 1, 0);
 	rc = register_memory_notifier(&sclp_mem_nb);
 	if (rc)
diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c
index 775112964eef..cbec45fdcc59 100644
--- a/drivers/s390/char/sclp_early.c
+++ b/drivers/s390/char/sclp_early.c
@@ -7,14 +7,176 @@
 #define KMSG_COMPONENT "sclp_early"
 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
 
+#include <asm/ctl_reg.h>
 #include <asm/sclp.h>
 #include <asm/ipl.h>
 #include "sclp_sdias.h"
 #include "sclp.h"
 
+#define SCLP_CMDW_READ_SCP_INFO		0x00020001
+#define SCLP_CMDW_READ_SCP_INFO_FORCED	0x00120001
+
+struct read_info_sccb {
+	struct	sccb_header header;	/* 0-7 */
+	u16	rnmax;			/* 8-9 */
+	u8	rnsize;			/* 10 */
+	u8	_reserved0[24 - 11];	/* 11-15 */
+	u8	loadparm[8];		/* 24-31 */
+	u8	_reserved1[48 - 32];	/* 32-47 */
+	u64	facilities;		/* 48-55 */
+	u8	_reserved2[84 - 56];	/* 56-83 */
+	u8	fac84;			/* 84 */
+	u8	fac85;			/* 85 */
+	u8	_reserved3[91 - 86];	/* 86-90 */
+	u8	flags;			/* 91 */
+	u8	_reserved4[100 - 92];	/* 92-99 */
+	u32	rnsize2;		/* 100-103 */
+	u64	rnmax2;			/* 104-111 */
+	u8	_reserved5[4096 - 112];	/* 112-4095 */
+} __packed __aligned(PAGE_SIZE);
+
+static __initdata struct init_sccb early_event_mask_sccb __aligned(PAGE_SIZE);
+static __initdata struct read_info_sccb early_read_info_sccb;
 static __initdata char sccb_early[PAGE_SIZE] __aligned(PAGE_SIZE);
 static unsigned long sclp_hsa_size;
 
+__initdata int sclp_early_read_info_sccb_valid;
+u64 sclp_facilities;
+u8 sclp_fac84;
+unsigned long long sclp_rzm;
+unsigned long long sclp_rnmax;
+
+static int __init sclp_cmd_sync_early(sclp_cmdw_t cmd, void *sccb)
+{
+	int rc;
+
+	__ctl_set_bit(0, 9);
+	rc = sclp_service_call(cmd, sccb);
+	if (rc)
+		goto out;
+	__load_psw_mask(PSW_DEFAULT_KEY | PSW_MASK_BASE | PSW_MASK_EA |
+			PSW_MASK_BA | PSW_MASK_EXT | PSW_MASK_WAIT);
+	local_irq_disable();
+out:
+	/* Contents of the sccb might have changed. */
+	barrier();
+	__ctl_clear_bit(0, 9);
+	return rc;
+}
+
+static void __init sclp_read_info_early(void)
+{
+	int rc;
+	int i;
+	struct read_info_sccb *sccb;
+	sclp_cmdw_t commands[] = {SCLP_CMDW_READ_SCP_INFO_FORCED,
+				  SCLP_CMDW_READ_SCP_INFO};
+
+	sccb = &early_read_info_sccb;
+	for (i = 0; i < ARRAY_SIZE(commands); i++) {
+		do {
+			memset(sccb, 0, sizeof(*sccb));
+			sccb->header.length = sizeof(*sccb);
+			sccb->header.function_code = 0x80;
+			sccb->header.control_mask[2] = 0x80;
+			rc = sclp_cmd_sync_early(commands[i], sccb);
+		} while (rc == -EBUSY);
+
+		if (rc)
+			break;
+		if (sccb->header.response_code == 0x10) {
+			sclp_early_read_info_sccb_valid = 1;
+			break;
+		}
+		if (sccb->header.response_code != 0x1f0)
+			break;
+	}
+}
+
+static void __init sclp_event_mask_early(void)
+{
+	struct init_sccb *sccb = &early_event_mask_sccb;
+	int rc;
+
+	do {
+		memset(sccb, 0, sizeof(*sccb));
+		sccb->header.length = sizeof(*sccb);
+		sccb->mask_length = sizeof(sccb_mask_t);
+		rc = sclp_cmd_sync_early(SCLP_CMDW_WRITE_EVENT_MASK, sccb);
+	} while (rc == -EBUSY);
+}
+
+void __init sclp_facilities_detect(void)
+{
+	struct read_info_sccb *sccb;
+
+	sclp_read_info_early();
+	if (!sclp_early_read_info_sccb_valid)
+		return;
+
+	sccb = &early_read_info_sccb;
+	sclp_facilities = sccb->facilities;
+	sclp_fac84 = sccb->fac84;
+	if (sccb->fac85 & 0x02)
+		S390_lowcore.machine_flags |= MACHINE_FLAG_ESOP;
+	sclp_rnmax = sccb->rnmax ? sccb->rnmax : sccb->rnmax2;
+	sclp_rzm = sccb->rnsize ? sccb->rnsize : sccb->rnsize2;
+	sclp_rzm <<= 20;
+
+	sclp_event_mask_early();
+}
+
+bool __init sclp_has_linemode(void)
+{
+	struct init_sccb *sccb = &early_event_mask_sccb;
+
+	if (sccb->header.response_code != 0x20)
+		return 0;
+	if (!(sccb->sclp_send_mask & (EVTYP_OPCMD_MASK | EVTYP_PMSGCMD_MASK)))
+		return 0;
+	if (!(sccb->sclp_receive_mask & (EVTYP_MSG_MASK | EVTYP_PMSGCMD_MASK)))
+		return 0;
+	return 1;
+}
+
+bool __init sclp_has_vt220(void)
+{
+	struct init_sccb *sccb = &early_event_mask_sccb;
+
+	if (sccb->header.response_code != 0x20)
+		return 0;
+	if (sccb->sclp_send_mask & EVTYP_VT220MSG_MASK)
+		return 1;
+	return 0;
+}
+
+unsigned long long sclp_get_rnmax(void)
+{
+	return sclp_rnmax;
+}
+
+unsigned long long sclp_get_rzm(void)
+{
+	return sclp_rzm;
+}
+
+/*
+ * This function will be called after sclp_facilities_detect(), which gets
+ * called from early.c code. Therefore the sccb should have valid contents.
+ */
+void __init sclp_get_ipl_info(struct sclp_ipl_info *info)
+{
+	struct read_info_sccb *sccb;
+
+	if (!sclp_early_read_info_sccb_valid)
+		return;
+	sccb = &early_read_info_sccb;
+	info->is_valid = 1;
+	if (sccb->flags & 0x2)
+		info->has_dump = 1;
+	memcpy(&info->loadparm, &sccb->loadparm, LOADPARM_LEN);
+}
+
 static int __init sclp_cmd_early(sclp_cmdw_t cmd, void *sccb)
 {
 	int rc;
-- 
cgit 


From 7b50da53f6ad2048241bef232bfc22a132a40283 Mon Sep 17 00:00:00 2001
From: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Date: Wed, 13 Nov 2013 10:38:27 +0100
Subject: s390/sclp: Consolidate early sclp init calls to sclp_early_detect()

The new function calls the old ones. The sclp_event_mask_early() is removed
and replaced by one invocation of sclp_set_event_mask(0, 0).

Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/sclp.h   |  3 +--
 arch/s390/kernel/early.c       |  3 +--
 drivers/s390/char/sclp_early.c | 27 +++++++++------------------
 3 files changed, 11 insertions(+), 22 deletions(-)

diff --git a/arch/s390/include/asm/sclp.h b/arch/s390/include/asm/sclp.h
index 593069201bb9..30ef748bc161 100644
--- a/arch/s390/include/asm/sclp.h
+++ b/arch/s390/include/asm/sclp.h
@@ -43,7 +43,6 @@ struct sclp_cpu_info {
 int sclp_get_cpu_info(struct sclp_cpu_info *info);
 int sclp_cpu_configure(u8 cpu);
 int sclp_cpu_deconfigure(u8 cpu);
-void sclp_facilities_detect(void);
 unsigned long long sclp_get_rnmax(void);
 unsigned long long sclp_get_rzm(void);
 int sclp_sdias_blk_count(void);
@@ -57,7 +56,7 @@ bool sclp_has_vt220(void);
 int sclp_pci_configure(u32 fid);
 int sclp_pci_deconfigure(u32 fid);
 int memcpy_hsa(void *dest, unsigned long src, size_t count, int mode);
-void sclp_hsa_size_detect(void);
 unsigned long sclp_get_hsa_size(void);
+void sclp_early_detect(void);
 
 #endif /* _ASM_S390_SCLP_H */
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index c0462f45cf1b..fca20b5fe79e 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -483,8 +483,7 @@ void __init startup_init(void)
 	detect_diag44();
 	detect_machine_facilities();
 	setup_topology();
-	sclp_facilities_detect();
-	sclp_hsa_size_detect();
+	sclp_early_detect();
 #ifdef CONFIG_DYNAMIC_FTRACE
 	S390_lowcore.ftrace_func = (unsigned long)ftrace_caller;
 #endif
diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c
index cbec45fdcc59..f7aa080e9b28 100644
--- a/drivers/s390/char/sclp_early.c
+++ b/drivers/s390/char/sclp_early.c
@@ -93,20 +93,7 @@ static void __init sclp_read_info_early(void)
 	}
 }
 
-static void __init sclp_event_mask_early(void)
-{
-	struct init_sccb *sccb = &early_event_mask_sccb;
-	int rc;
-
-	do {
-		memset(sccb, 0, sizeof(*sccb));
-		sccb->header.length = sizeof(*sccb);
-		sccb->mask_length = sizeof(sccb_mask_t);
-		rc = sclp_cmd_sync_early(SCLP_CMDW_WRITE_EVENT_MASK, sccb);
-	} while (rc == -EBUSY);
-}
-
-void __init sclp_facilities_detect(void)
+static void __init sclp_facilities_detect(void)
 {
 	struct read_info_sccb *sccb;
 
@@ -122,8 +109,6 @@ void __init sclp_facilities_detect(void)
 	sclp_rnmax = sccb->rnmax ? sccb->rnmax : sccb->rnmax2;
 	sclp_rzm = sccb->rnsize ? sccb->rnsize : sccb->rnsize2;
 	sclp_rzm <<= 20;
-
-	sclp_event_mask_early();
 }
 
 bool __init sclp_has_linemode(void)
@@ -246,7 +231,7 @@ unsigned long sclp_get_hsa_size(void)
 	return sclp_hsa_size;
 }
 
-void __init sclp_hsa_size_detect(void)
+static void __init sclp_hsa_size_detect(void)
 {
 	long size;
 
@@ -268,6 +253,12 @@ void __init sclp_hsa_size_detect(void)
 	if (size < 0)
 		return;
 out:
-	sclp_set_event_mask(0, 0);
 	sclp_hsa_size = size;
 }
+
+void __init sclp_early_detect(void)
+{
+	sclp_facilities_detect();
+	sclp_hsa_size_detect();
+	sclp_set_event_mask(0, 0);
+}
-- 
cgit 


From 605c36986c693b811b7ee3b7a0319ec3950d485a Mon Sep 17 00:00:00 2001
From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Thu, 14 Nov 2013 10:44:56 +0100
Subject: s390/scm_block: do not hide eadm subchannel dependency

Stop hiding scm_block's dependency to the eadm subchannel driver
(by using functions provided by the eadm subchannel instead of
wrappers provided by the scm bus).

This will help userspace recognizing module dependencies (e.g. for
building a ramdisk). As a side effect we can get rid of some code
reimplementing refcounting between those modules.

Reported-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Reviewed-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/include/asm/eadm.h         | 13 +----------
 drivers/s390/block/scm_blk.c         | 24 +++++--------------
 drivers/s390/block/scm_blk_cluster.c |  2 +-
 drivers/s390/cio/eadm_sch.c          | 10 ++------
 drivers/s390/cio/scm.c               | 45 ------------------------------------
 5 files changed, 10 insertions(+), 84 deletions(-)

diff --git a/arch/s390/include/asm/eadm.h b/arch/s390/include/asm/eadm.h
index dc9200ca32ed..67026300c88e 100644
--- a/arch/s390/include/asm/eadm.h
+++ b/arch/s390/include/asm/eadm.h
@@ -111,18 +111,7 @@ struct scm_driver {
 int scm_driver_register(struct scm_driver *scmdrv);
 void scm_driver_unregister(struct scm_driver *scmdrv);
 
-int scm_start_aob(struct aob *aob);
+int eadm_start_aob(struct aob *aob);
 void scm_irq_handler(struct aob *aob, int error);
 
-struct eadm_ops {
-	int (*eadm_start) (struct aob *aob);
-	struct module *owner;
-};
-
-int scm_get_ref(void);
-void scm_put_ref(void);
-
-void register_eadm_ops(struct eadm_ops *ops);
-void unregister_eadm_ops(struct eadm_ops *ops);
-
 #endif /* _ASM_S390_EADM_H */
diff --git a/drivers/s390/block/scm_blk.c b/drivers/s390/block/scm_blk.c
index 548209a9c43c..d0ab5019d885 100644
--- a/drivers/s390/block/scm_blk.c
+++ b/drivers/s390/block/scm_blk.c
@@ -118,22 +118,6 @@ static void scm_request_done(struct scm_request *scmrq)
 	spin_unlock_irqrestore(&list_lock, flags);
 }
 
-static int scm_open(struct block_device *blkdev, fmode_t mode)
-{
-	return scm_get_ref();
-}
-
-static void scm_release(struct gendisk *gendisk, fmode_t mode)
-{
-	scm_put_ref();
-}
-
-static const struct block_device_operations scm_blk_devops = {
-	.owner = THIS_MODULE,
-	.open = scm_open,
-	.release = scm_release,
-};
-
 static bool scm_permit_request(struct scm_blk_dev *bdev, struct request *req)
 {
 	return rq_data_dir(req) != WRITE || bdev->state != SCM_WR_PROHIBIT;
@@ -256,7 +240,7 @@ static void scm_blk_request(struct request_queue *rq)
 		atomic_inc(&bdev->queued_reqs);
 		blk_start_request(req);
 
-		ret = scm_start_aob(scmrq->aob);
+		ret = eadm_start_aob(scmrq->aob);
 		if (ret) {
 			SCM_LOG(5, "no subchannel");
 			scm_request_requeue(scmrq);
@@ -320,7 +304,7 @@ static void scm_blk_handle_error(struct scm_request *scmrq)
 	}
 
 restart:
-	if (!scm_start_aob(scmrq->aob))
+	if (!eadm_start_aob(scmrq->aob))
 		return;
 
 requeue:
@@ -363,6 +347,10 @@ static void scm_blk_tasklet(struct scm_blk_dev *bdev)
 	blk_run_queue(bdev->rq);
 }
 
+static const struct block_device_operations scm_blk_devops = {
+	.owner = THIS_MODULE,
+};
+
 int scm_blk_dev_setup(struct scm_blk_dev *bdev, struct scm_device *scmdev)
 {
 	struct request_queue *rq;
diff --git a/drivers/s390/block/scm_blk_cluster.c b/drivers/s390/block/scm_blk_cluster.c
index c0d102e3a48b..27f930cd657f 100644
--- a/drivers/s390/block/scm_blk_cluster.c
+++ b/drivers/s390/block/scm_blk_cluster.c
@@ -187,7 +187,7 @@ bool scm_need_cluster_request(struct scm_request *scmrq)
 void scm_initiate_cluster_request(struct scm_request *scmrq)
 {
 	scm_prepare_cluster_request(scmrq);
-	if (scm_start_aob(scmrq->aob))
+	if (eadm_start_aob(scmrq->aob))
 		scm_request_requeue(scmrq);
 }
 
diff --git a/drivers/s390/cio/eadm_sch.c b/drivers/s390/cio/eadm_sch.c
index aca7bfc113aa..3a2ee4a740b4 100644
--- a/drivers/s390/cio/eadm_sch.c
+++ b/drivers/s390/cio/eadm_sch.c
@@ -190,7 +190,7 @@ static struct subchannel *eadm_get_idle_sch(void)
 	return NULL;
 }
 
-static int eadm_start_aob(struct aob *aob)
+int eadm_start_aob(struct aob *aob)
 {
 	struct eadm_private *private;
 	struct subchannel *sch;
@@ -218,6 +218,7 @@ out_unlock:
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(eadm_start_aob);
 
 static int eadm_subchannel_probe(struct subchannel *sch)
 {
@@ -380,11 +381,6 @@ static struct css_driver eadm_subchannel_driver = {
 	.restore = eadm_subchannel_restore,
 };
 
-static struct eadm_ops eadm_ops = {
-	.eadm_start = eadm_start_aob,
-	.owner = THIS_MODULE,
-};
-
 static int __init eadm_sch_init(void)
 {
 	int ret;
@@ -404,7 +400,6 @@ static int __init eadm_sch_init(void)
 	if (ret)
 		goto cleanup;
 
-	register_eadm_ops(&eadm_ops);
 	return ret;
 
 cleanup:
@@ -415,7 +410,6 @@ cleanup:
 
 static void __exit eadm_sch_exit(void)
 {
-	unregister_eadm_ops(&eadm_ops);
 	css_driver_unregister(&eadm_subchannel_driver);
 	isc_unregister(EADM_SCH_ISC);
 	debug_unregister(eadm_debug);
diff --git a/drivers/s390/cio/scm.c b/drivers/s390/cio/scm.c
index 46ec25632e8b..15268edc54ae 100644
--- a/drivers/s390/cio/scm.c
+++ b/drivers/s390/cio/scm.c
@@ -15,8 +15,6 @@
 #include "chsc.h"
 
 static struct device *scm_root;
-static struct eadm_ops *eadm_ops;
-static DEFINE_MUTEX(eadm_ops_mutex);
 
 #define to_scm_dev(n) container_of(n, struct scm_device, dev)
 #define	to_scm_drv(d) container_of(d, struct scm_driver, drv)
@@ -73,49 +71,6 @@ void scm_driver_unregister(struct scm_driver *scmdrv)
 }
 EXPORT_SYMBOL_GPL(scm_driver_unregister);
 
-int scm_get_ref(void)
-{
-	int ret = 0;
-
-	mutex_lock(&eadm_ops_mutex);
-	if (!eadm_ops || !try_module_get(eadm_ops->owner))
-		ret = -ENOENT;
-	mutex_unlock(&eadm_ops_mutex);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(scm_get_ref);
-
-void scm_put_ref(void)
-{
-	mutex_lock(&eadm_ops_mutex);
-	module_put(eadm_ops->owner);
-	mutex_unlock(&eadm_ops_mutex);
-}
-EXPORT_SYMBOL_GPL(scm_put_ref);
-
-void register_eadm_ops(struct eadm_ops *ops)
-{
-	mutex_lock(&eadm_ops_mutex);
-	eadm_ops = ops;
-	mutex_unlock(&eadm_ops_mutex);
-}
-EXPORT_SYMBOL_GPL(register_eadm_ops);
-
-void unregister_eadm_ops(struct eadm_ops *ops)
-{
-	mutex_lock(&eadm_ops_mutex);
-	eadm_ops = NULL;
-	mutex_unlock(&eadm_ops_mutex);
-}
-EXPORT_SYMBOL_GPL(unregister_eadm_ops);
-
-int scm_start_aob(struct aob *aob)
-{
-	return eadm_ops->eadm_start(aob);
-}
-EXPORT_SYMBOL_GPL(scm_start_aob);
-
 void scm_irq_handler(struct aob *aob, int error)
 {
 	struct aob_rq_header *aobrq = (void *) aob->request.data;
-- 
cgit 


From d795ddad36cbc828176c898a5084549030539162 Mon Sep 17 00:00:00 2001
From: Sebastian Ott <sebott@linux.vnet.ibm.com>
Date: Fri, 15 Nov 2013 13:56:08 +0100
Subject: s390/pci: implement hotplug notifications

When the availability of a pci function has changed by means
outside of our control we receive an availability event.
Implement/improve the handling of these notifications.

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/pci/pci_event.c | 79 ++++++++++++++++++++++++++++++++---------------
 1 file changed, 54 insertions(+), 25 deletions(-)

diff --git a/arch/s390/pci/pci_event.c b/arch/s390/pci/pci_event.c
index 278e671ec9ac..800f064b0da7 100644
--- a/arch/s390/pci/pci_event.c
+++ b/arch/s390/pci/pci_event.c
@@ -11,6 +11,7 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <asm/pci_debug.h>
+#include <asm/sclp.h>
 
 /* Content Code Description for PCI Function Error */
 struct zpci_ccdf_err {
@@ -42,10 +43,27 @@ struct zpci_ccdf_avail {
 	u16 pec;			/* PCI event code */
 } __packed;
 
-static void zpci_event_log_avail(struct zpci_ccdf_avail *ccdf)
+void zpci_event_error(void *data)
 {
+	struct zpci_ccdf_err *ccdf = data;
+	struct zpci_dev *zdev = get_zdev_by_fid(ccdf->fid);
+
+	zpci_err("error CCDF:\n");
+	zpci_err_hex(ccdf, sizeof(*ccdf));
+
+	if (!zdev)
+		return;
+
+	pr_err("%s: Event 0x%x reports an error for PCI function 0x%x\n",
+	       pci_name(zdev->pdev), ccdf->pec, ccdf->fid);
+}
+
+void zpci_event_availability(void *data)
+{
+	struct zpci_ccdf_avail *ccdf = data;
 	struct zpci_dev *zdev = get_zdev_by_fid(ccdf->fid);
 	struct pci_dev *pdev = zdev ? zdev->pdev : NULL;
+	int ret;
 
 	pr_info("%s: Event 0x%x reconfigured PCI function 0x%x\n",
 		pdev ? pci_name(pdev) : "n/a", ccdf->pec, ccdf->fid);
@@ -53,36 +71,47 @@ static void zpci_event_log_avail(struct zpci_ccdf_avail *ccdf)
 	zpci_err_hex(ccdf, sizeof(*ccdf));
 
 	switch (ccdf->pec) {
-	case 0x0301:
-		zpci_enable_device(zdev);
+	case 0x0301: /* Standby -> Configured */
+		if (!zdev || zdev->state == ZPCI_FN_STATE_CONFIGURED)
+			break;
+		zdev->state = ZPCI_FN_STATE_CONFIGURED;
+		ret = zpci_enable_device(zdev);
+		if (ret)
+			break;
+		pci_rescan_bus(zdev->bus);
 		break;
-	case 0x0302:
+	case 0x0302: /* Reserved -> Standby */
 		clp_add_pci_device(ccdf->fid, ccdf->fh, 0);
 		break;
-	case 0x0306:
+	case 0x0303: /* Deconfiguration requested */
+		if (pdev)
+			pci_stop_and_remove_bus_device(pdev);
+
+		ret = zpci_disable_device(zdev);
+		if (ret)
+			break;
+
+		ret = sclp_pci_deconfigure(zdev->fid);
+		zpci_dbg(3, "deconf fid:%x, rc:%d\n", zdev->fid, ret);
+		if (!ret)
+			zdev->state = ZPCI_FN_STATE_STANDBY;
+
+		break;
+	case 0x0304: /* Configured -> Standby */
+		if (pdev)
+			pci_stop_and_remove_bus_device(pdev);
+
+		zpci_disable_device(zdev);
+		zdev->state = ZPCI_FN_STATE_STANDBY;
+		break;
+	case 0x0306: /* 0x308 or 0x302 for multiple devices */
 		clp_rescan_pci_devices();
 		break;
+	case 0x0308: /* Standby -> Reserved */
+		pci_stop_root_bus(zdev->bus);
+		pci_remove_root_bus(zdev->bus);
+		break;
 	default:
 		break;
 	}
 }
-
-void zpci_event_error(void *data)
-{
-	struct zpci_ccdf_err *ccdf = data;
-	struct zpci_dev *zdev = get_zdev_by_fid(ccdf->fid);
-
-	zpci_err("error CCDF:\n");
-	zpci_err_hex(ccdf, sizeof(*ccdf));
-
-	if (!zdev)
-		return;
-
-	pr_err("%s: Event 0x%x reports an error for PCI function 0x%x\n",
-	       pci_name(zdev->pdev), ccdf->pec, ccdf->fid);
-}
-
-void zpci_event_availability(void *data)
-{
-	zpci_event_log_avail(data);
-}
-- 
cgit 


From 46e0f66a0cf9e1fe25bfdcf4a60c08aface85998 Mon Sep 17 00:00:00 2001
From: Chris Mason <chris.mason@fusionio.com>
Date: Fri, 15 Nov 2013 12:14:55 +0100
Subject: btrfs: fix empty_zero_page misusage

Heiko Carstens noticed that btrfs was using empty_zero_page
incorrectly.  He explained:

	The definition of empty_zero_page is architecture specific.  It
	is (currently) either a character array, an unsigned long
	containing the address of the empty_zero_page, or even worse
	only the address of the struct page belonging to the
	empty_zero_page.

This commit changes btrfs to use a for-loop instead.  On x86
the resulting .ko is smaller, and we're no longer worrying about
how each arch builds its zeros.

Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/ioctl.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 1d04b5559e61..64a0876c7872 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -368,8 +368,13 @@ static noinline int btrfs_ioctl_fitrim(struct file *file, void __user *arg)
 
 int btrfs_is_empty_uuid(u8 *uuid)
 {
-	BUILD_BUG_ON(BTRFS_UUID_SIZE > PAGE_SIZE);
-	return !memcmp(uuid, empty_zero_page, BTRFS_UUID_SIZE);
+	int i;
+
+	for (i = 0; i < BTRFS_UUID_SIZE; i++) {
+		if (uuid[i])
+			return 0;
+	}
+	return 1;
 }
 
 static noinline int create_subvol(struct inode *dir,
-- 
cgit 


From 54563d41a58be77e9bd9ef7af1ea4026cf0e7e07 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 1 Sep 2013 15:57:51 -0400
Subject: btrfs: get rid of fdentry()

3 of 4 callers actually want file_inode()...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/ctree.h | 5 -----
 fs/btrfs/ioctl.c | 8 ++++----
 2 files changed, 4 insertions(+), 9 deletions(-)

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index aea4433081dc..f9aeb2759a64 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3111,11 +3111,6 @@ static inline u32 btrfs_level_size(struct btrfs_root *root, int level)
 	((unsigned long)(btrfs_leaf_data(leaf) + \
 	btrfs_item_offset_nr(leaf, slot)))
 
-static inline struct dentry *fdentry(struct file *file)
-{
-	return file->f_path.dentry;
-}
-
 static inline bool btrfs_mixed_space_info(struct btrfs_space_info *space_info)
 {
 	return ((space_info->flags & BTRFS_BLOCK_GROUP_METADATA) &&
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 64a0876c7872..a111622598b0 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -320,7 +320,7 @@ static int btrfs_ioctl_getversion(struct file *file, int __user *arg)
 
 static noinline int btrfs_ioctl_fitrim(struct file *file, void __user *arg)
 {
-	struct btrfs_fs_info *fs_info = btrfs_sb(fdentry(file)->d_sb);
+	struct btrfs_fs_info *fs_info = btrfs_sb(file_inode(file)->i_sb);
 	struct btrfs_device *device;
 	struct request_queue *q;
 	struct fstrim_range range;
@@ -2089,7 +2089,7 @@ static noinline int btrfs_ioctl_ino_lookup(struct file *file,
 static noinline int btrfs_ioctl_snap_destroy(struct file *file,
 					     void __user *arg)
 {
-	struct dentry *parent = fdentry(file);
+	struct dentry *parent = file->f_path.dentry;
 	struct dentry *dentry;
 	struct inode *dir = parent->d_inode;
 	struct inode *inode;
@@ -3105,7 +3105,7 @@ out:
 static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
 				       u64 off, u64 olen, u64 destoff)
 {
-	struct inode *inode = fdentry(file)->d_inode;
+	struct inode *inode = file_inode(file);
 	struct btrfs_root *root = BTRFS_I(inode)->root;
 	struct fd src_file;
 	struct inode *src;
@@ -4304,7 +4304,7 @@ static long btrfs_ioctl_quota_rescan_status(struct file *file, void __user *arg)
 
 static long btrfs_ioctl_quota_rescan_wait(struct file *file, void __user *arg)
 {
-	struct btrfs_root *root = BTRFS_I(fdentry(file)->d_inode)->root;
+	struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
 
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
-- 
cgit 


From 71bfae9097a94bb9a07afc6c16077429d3e40709 Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Fri, 15 Nov 2013 14:22:15 +0000
Subject: swiotlb-xen: add missing xen_dma_map_page call

swiotlb-xen is missing a xen_dma_map_page call in
xen_swiotlb_map_sg_attrs, in the bounce buffer path.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
---
 drivers/xen/swiotlb-xen.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index a224bc74b6b9..1eac0731c349 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -555,6 +555,11 @@ xen_swiotlb_map_sg_attrs(struct device *hwdev, struct scatterlist *sgl,
 				sg_dma_len(sgl) = 0;
 				return 0;
 			}
+			xen_dma_map_page(hwdev, pfn_to_page(map >> PAGE_SHIFT),
+						map & ~PAGE_MASK,
+						sg->length,
+						dir,
+						attrs);
 			sg->dma_address = xen_phys_to_bus(map);
 		} else {
 			/* we are not interested in the dma_addr returned by
-- 
cgit 


From d2e7491e24e47aa0305455031fc1b9ea1f97b555 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Fri, 15 Nov 2013 13:48:23 +0000
Subject: regulator: arizona-micsupp: Correct wm5110 voltage selection

wm5110 provides different voltage configurations than the other Arizona
parts, this patch adds support for this into the regulator driver. Also
fixup the default for the configuration register for wm5110.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org (v3.12)
---
 drivers/regulator/arizona-micsupp.c | 54 +++++++++++++++++++++++++++++++++++--
 1 file changed, 52 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/arizona-micsupp.c b/drivers/regulator/arizona-micsupp.c
index 724706a97dc4..fd3154d86901 100644
--- a/drivers/regulator/arizona-micsupp.c
+++ b/drivers/regulator/arizona-micsupp.c
@@ -174,6 +174,33 @@ static const struct regulator_desc arizona_micsupp = {
 	.owner = THIS_MODULE,
 };
 
+static const struct regulator_linear_range arizona_micsupp_ext_ranges[] = {
+	REGULATOR_LINEAR_RANGE(900000,  0,    0x14, 25000),
+	REGULATOR_LINEAR_RANGE(1500000, 0x15, 0x27, 100000),
+};
+
+static const struct regulator_desc arizona_micsupp_ext = {
+	.name = "MICVDD",
+	.supply_name = "CPVDD",
+	.type = REGULATOR_VOLTAGE,
+	.n_voltages = 40,
+	.ops = &arizona_micsupp_ops,
+
+	.vsel_reg = ARIZONA_LDO2_CONTROL_1,
+	.vsel_mask = ARIZONA_LDO2_VSEL_MASK,
+	.enable_reg = ARIZONA_MIC_CHARGE_PUMP_1,
+	.enable_mask = ARIZONA_CPMIC_ENA,
+	.bypass_reg = ARIZONA_MIC_CHARGE_PUMP_1,
+	.bypass_mask = ARIZONA_CPMIC_BYPASS,
+
+	.linear_ranges = arizona_micsupp_ext_ranges,
+	.n_linear_ranges = ARRAY_SIZE(arizona_micsupp_ext_ranges),
+
+	.enable_time = 3000,
+
+	.owner = THIS_MODULE,
+};
+
 static const struct regulator_init_data arizona_micsupp_default = {
 	.constraints = {
 		.valid_ops_mask = REGULATOR_CHANGE_STATUS |
@@ -186,9 +213,22 @@ static const struct regulator_init_data arizona_micsupp_default = {
 	.num_consumer_supplies = 1,
 };
 
+static const struct regulator_init_data arizona_micsupp_ext_default = {
+	.constraints = {
+		.valid_ops_mask = REGULATOR_CHANGE_STATUS |
+				REGULATOR_CHANGE_VOLTAGE |
+				REGULATOR_CHANGE_BYPASS,
+		.min_uV = 900000,
+		.max_uV = 3300000,
+	},
+
+	.num_consumer_supplies = 1,
+};
+
 static int arizona_micsupp_probe(struct platform_device *pdev)
 {
 	struct arizona *arizona = dev_get_drvdata(pdev->dev.parent);
+	const struct regulator_desc *desc;
 	struct regulator_config config = { };
 	struct arizona_micsupp *micsupp;
 	int ret;
@@ -207,7 +247,17 @@ static int arizona_micsupp_probe(struct platform_device *pdev)
 	 * default init_data for it.  This will be overridden with
 	 * platform data if provided.
 	 */
-	micsupp->init_data = arizona_micsupp_default;
+	switch (arizona->type) {
+	case WM5110:
+		desc = &arizona_micsupp_ext;
+		micsupp->init_data = arizona_micsupp_ext_default;
+		break;
+	default:
+		desc = &arizona_micsupp;
+		micsupp->init_data = arizona_micsupp_default;
+		break;
+	}
+
 	micsupp->init_data.consumer_supplies = &micsupp->supply;
 	micsupp->supply.supply = "MICVDD";
 	micsupp->supply.dev_name = dev_name(arizona->dev);
@@ -226,7 +276,7 @@ static int arizona_micsupp_probe(struct platform_device *pdev)
 			   ARIZONA_CPMIC_BYPASS, 0);
 
 	micsupp->regulator = devm_regulator_register(&pdev->dev,
-						     &arizona_micsupp,
+						     desc,
 						     &config);
 	if (IS_ERR(micsupp->regulator)) {
 		ret = PTR_ERR(micsupp->regulator);
-- 
cgit 


From c27f2de754a1412ce4a6c4af723605f776ec4ac2 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Wed, 30 Oct 2013 13:23:21 +0800
Subject: ARM: OMAP3: Beagle: fix return value check in beagle_opp_init()

In case of error, the function get_cpu_device() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should be
replaced with NULL test.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/board-omap3beagle.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c
index 8b9cd0690ce7..09f6149b59a9 100644
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -510,7 +510,7 @@ static int __init beagle_opp_init(void)
 		mpu_dev = get_cpu_device(0);
 		iva_dev = omap_device_get_by_hwmod_name("iva");
 
-		if (IS_ERR(mpu_dev) || IS_ERR(iva_dev)) {
+		if (!mpu_dev || IS_ERR(iva_dev)) {
 			pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
 				__func__, mpu_dev, iva_dev);
 			return -ENODEV;
-- 
cgit 


From cd6d364f474491160bfd8cb4bad0637858023161 Mon Sep 17 00:00:00 2001
From: Lokesh Vutla <lokeshvutla@ti.com>
Date: Fri, 8 Nov 2013 11:07:36 +0530
Subject: ARM: dts: doc: Document missing compatible property for omap-sham
 driver

A new compatible property "ti,omap5-sham" is added to the omap-sham driver
recently to support SHA/MD5 for OMAP5,DRA7 and AM43XX. Documenting the
same.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 Documentation/devicetree/bindings/crypto/omap-sham.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/crypto/omap-sham.txt b/Documentation/devicetree/bindings/crypto/omap-sham.txt
index f839acd6f0ee..ad9115569611 100644
--- a/Documentation/devicetree/bindings/crypto/omap-sham.txt
+++ b/Documentation/devicetree/bindings/crypto/omap-sham.txt
@@ -6,7 +6,7 @@ Required properties:
   SHAM versions:
   - "ti,omap2-sham" for OMAP2 & OMAP3.
   - "ti,omap4-sham" for OMAP4 and AM33XX.
-  Note that these two versions are incompatible.
+  - "ti,omap5-sham" for OMAP5, DRA7 and AM43XX.
 - ti,hwmods: Name of the hwmod associated with the SHAM module
 - reg : Offset and length of the register set for the module
 - interrupts : the interrupt-specifier for the SHAM module.
-- 
cgit 


From 31844434239e30cc7419510921929194be41e637 Mon Sep 17 00:00:00 2001
From: Joel Fernandes <joelf@ti.com>
Date: Mon, 11 Nov 2013 13:49:41 -0600
Subject: doc: devicetree: Add bindings documentation for omap-des driver

Add documentation for the generic OMAP DES crypto modul describing the device
tree bindings.

Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 .../devicetree/bindings/crypto/omap-des.txt        | 30 ++++++++++++++++++++++
 1 file changed, 30 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/crypto/omap-des.txt

diff --git a/Documentation/devicetree/bindings/crypto/omap-des.txt b/Documentation/devicetree/bindings/crypto/omap-des.txt
new file mode 100644
index 000000000000..e8c63bf2e16d
--- /dev/null
+++ b/Documentation/devicetree/bindings/crypto/omap-des.txt
@@ -0,0 +1,30 @@
+OMAP SoC DES crypto Module
+
+Required properties:
+
+- compatible : Should contain "ti,omap4-des"
+- ti,hwmods: Name of the hwmod associated with the DES module
+- reg : Offset and length of the register set for the module
+- interrupts : the interrupt-specifier for the DES module
+- clocks : A phandle to the functional clock node of the DES module
+           corresponding to each entry in clock-names
+- clock-names : Name of the functional clock, should be "fck"
+
+Optional properties:
+- dmas: DMA specifiers for tx and rx dma. See the DMA client binding,
+	Documentation/devicetree/bindings/dma/dma.txt
+	Each entry corresponds to an entry in dma-names
+- dma-names: DMA request names should include "tx" and "rx" if present
+
+Example:
+	/* DRA7xx SoC */
+	des: des@480a5000 {
+		compatible = "ti,omap4-des";
+		ti,hwmods = "des";
+		reg = <0x480a5000 0xa0>;
+		interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
+		dmas = <&sdma 117>, <&sdma 116>;
+		dma-names = "tx", "rx";
+		clocks = <&l3_iclk_div>;
+		clock-names = "fck";
+	};
-- 
cgit 


From 3522bf7bfa248b99eafa2f4872190699a808c7d9 Mon Sep 17 00:00:00 2001
From: Nishanth Menon <nm@ti.com>
Date: Thu, 14 Nov 2013 11:05:16 -0600
Subject: ARM: OMAP2+: omap_device: maintain sane runtime pm status around
 suspend/resume

OMAP device hooks around suspend|resume_noirq ensures that hwmod
devices are forced to idle using omap_device_idle/enable as part of
the last stage of suspend activity.

For a device such as i2c who uses autosuspend, it is possible to enter
the suspend path with dev->power.runtime_status = RPM_ACTIVE.

As part of the suspend flow, the generic runtime logic would increment
it's dev->power.disable_depth to 1. This should prevent further
pm_runtime_get_sync from succeeding once the runtime_status has been
set to RPM_SUSPENDED.

Now, as part of the suspend_noirq handler in omap_device, we force the
following: if the device status is !suspended, we force the device
to idle using omap_device_idle (clocks are cut etc..). This ensures
that from a hardware perspective, the device is "suspended". However,
runtime_status is left to be active.

*if* an operation is attempted after this point to
pm_runtime_get_sync, runtime framework depends on runtime_status to
indicate accurately the device status, and since it sees it to be
ACTIVE, it assumes the module is functional and returns a non-error
value. As a result the user will see pm_runtime_get succeed, however a
register access will crash due to the lack of clocks.

To prevent this from happening, we should ensure that runtime_status
exactly indicates the device status. As a result of this change
any further calls to pm_runtime_get* would return -EACCES (since
disable_depth is 1). On resume, we restore the clocks and runtime
status exactly as we suspended with. These operations are not expected
to fail as we update the states after the core runtime framework has
suspended itself and restore before the core runtime framework has
resumed.

Cc: stable@vger.kernel.org # v3.4+
Reported-by: J Keerthy <j-keerthy@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Acked-by: Rajendra Nayak <rnayak@ti.com>
Acked-by: Kevin Hilman <khilman@linaro.org>
Reviewed-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/omap_device.c | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c
index b69dd9abb50a..53f0735817bb 100644
--- a/arch/arm/mach-omap2/omap_device.c
+++ b/arch/arm/mach-omap2/omap_device.c
@@ -621,6 +621,7 @@ static int _od_suspend_noirq(struct device *dev)
 
 	if (!ret && !pm_runtime_status_suspended(dev)) {
 		if (pm_generic_runtime_suspend(dev) == 0) {
+			pm_runtime_set_suspended(dev);
 			omap_device_idle(pdev);
 			od->flags |= OMAP_DEVICE_SUSPENDED;
 		}
@@ -634,10 +635,18 @@ static int _od_resume_noirq(struct device *dev)
 	struct platform_device *pdev = to_platform_device(dev);
 	struct omap_device *od = to_omap_device(pdev);
 
-	if ((od->flags & OMAP_DEVICE_SUSPENDED) &&
-	    !pm_runtime_status_suspended(dev)) {
+	if (od->flags & OMAP_DEVICE_SUSPENDED) {
 		od->flags &= ~OMAP_DEVICE_SUSPENDED;
 		omap_device_enable(pdev);
+		/*
+		 * XXX: we run before core runtime pm has resumed itself. At
+		 * this point in time, we just restore the runtime pm state and
+		 * considering symmetric operations in resume, we donot expect
+		 * to fail. If we failed, something changed in core runtime_pm
+		 * framework OR some device driver messed things up, hence, WARN
+		 */
+		WARN(pm_runtime_set_active(dev),
+		     "Could not set %s runtime state active\n", dev_name(dev));
 		pm_generic_runtime_resume(dev);
 	}
 
-- 
cgit 


From 26273e02a0cf18eb72416559310d3294390a9024 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Fri, 15 Nov 2013 08:27:29 -0800
Subject: ARM: OMAP2+: Fix build for dra7xx without omap4 and 5
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Otherwise we can get errors like:

arch/arm/mach-omap2/prm44xx.c:274: error: redefinition of ‘omap44xx_prm_reconfigure_io_chain’
arch/arm/mach-omap2/built-in.o: In function `default_finish_suspend':
arch/arm/mach-omap2/omap-mpuss-lowpower.c:95: undefined reference to `omap_do_wfi'

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/Makefile       | 2 +-
 arch/arm/mach-omap2/prm44xx_54xx.h | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index e15ac005ef17..1f25f3e99c05 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -40,7 +40,7 @@ omap-4-5-common				=  omap4-common.o omap-wakeupgen.o
 obj-$(CONFIG_ARCH_OMAP4)		+= $(omap-4-5-common) $(smp-y) sleep44xx.o
 obj-$(CONFIG_SOC_OMAP5)			+= $(omap-4-5-common) $(smp-y) sleep44xx.o
 obj-$(CONFIG_SOC_AM43XX)		+= $(omap-4-5-common)
-obj-$(CONFIG_SOC_DRA7XX)		+= $(omap-4-5-common) $(smp-y)
+obj-$(CONFIG_SOC_DRA7XX)		+= $(omap-4-5-common) $(smp-y) sleep44xx.o
 
 plus_sec := $(call as-instr,.arch_extension sec,+sec)
 AFLAGS_omap-headsmp.o			:=-Wa,-march=armv7-a$(plus_sec)
diff --git a/arch/arm/mach-omap2/prm44xx_54xx.h b/arch/arm/mach-omap2/prm44xx_54xx.h
index a085d9cc1f5d..7a976065e138 100644
--- a/arch/arm/mach-omap2/prm44xx_54xx.h
+++ b/arch/arm/mach-omap2/prm44xx_54xx.h
@@ -42,7 +42,8 @@ extern u32 omap4_prm_vcvp_read(u8 offset);
 extern void omap4_prm_vcvp_write(u32 val, u8 offset);
 extern u32 omap4_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
 
-#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5)
+#if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \
+	defined(CONFIG_SOC_DRA7XX)
 void omap44xx_prm_reconfigure_io_chain(void);
 #else
 static inline void omap44xx_prm_reconfigure_io_chain(void)
-- 
cgit 


From 93b80ac297b1cfdf3bea771a5ce6ea4ff5d25d1d Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Thu, 31 Oct 2013 15:26:35 +0200
Subject: IB/mlx4: Fix endless loop in resize CQ

When calling get_sw_cqe() we need pass the consumer_index and not the
masked value. Failure to do so will cause incorrect result of
get_sw_cqe() possibly leading to endless loop.

This problem was reported and analyzed by Michael Rice from HP.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/mlx4/cq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c
index d5e60f44ba5a..3fe1a68a500a 100644
--- a/drivers/infiniband/hw/mlx4/cq.c
+++ b/drivers/infiniband/hw/mlx4/cq.c
@@ -324,7 +324,7 @@ static int mlx4_ib_get_outstanding_cqes(struct mlx4_ib_cq *cq)
 	u32 i;
 
 	i = cq->mcq.cons_index;
-	while (get_sw_cqe(cq, i & cq->ibcq.cqe))
+	while (get_sw_cqe(cq, i))
 		++i;
 
 	return i - cq->mcq.cons_index;
-- 
cgit 


From 1c636f801615bdfc9b1d46904e8258c7a025670b Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Thu, 31 Oct 2013 15:26:32 +0200
Subject: IB/core: Encorce MR access rights rules on kernel consumers

Enforce the rule that when requesting remote write or atomic permissions, local
write must be indicated as well. See IB spec 11.2.8.2.

Spotted by: Hagay Abramovsky <hagaya@mellanox.com>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/core/uverbs_cmd.c | 10 +++-------
 drivers/infiniband/core/verbs.c      | 14 ++++++++++++++
 include/rdma/ib_verbs.h              | 13 +++++++++++++
 3 files changed, 30 insertions(+), 7 deletions(-)

diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 5bb2a82d52e7..7f671b7b8bac 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -939,13 +939,9 @@ ssize_t ib_uverbs_reg_mr(struct ib_uverbs_file *file,
 	if ((cmd.start & ~PAGE_MASK) != (cmd.hca_va & ~PAGE_MASK))
 		return -EINVAL;
 
-	/*
-	 * Local write permission is required if remote write or
-	 * remote atomic permission is also requested.
-	 */
-	if (cmd.access_flags & (IB_ACCESS_REMOTE_ATOMIC | IB_ACCESS_REMOTE_WRITE) &&
-	    !(cmd.access_flags & IB_ACCESS_LOCAL_WRITE))
-		return -EINVAL;
+	ret = ib_check_mr_access(cmd.access_flags);
+	if (ret)
+		return ret;
 
 	uobj = kmalloc(sizeof *uobj, GFP_KERNEL);
 	if (!uobj)
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 84f502785f89..d4f6ddf72ffa 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -961,6 +961,11 @@ EXPORT_SYMBOL(ib_resize_cq);
 struct ib_mr *ib_get_dma_mr(struct ib_pd *pd, int mr_access_flags)
 {
 	struct ib_mr *mr;
+	int err;
+
+	err = ib_check_mr_access(mr_access_flags);
+	if (err)
+		return ERR_PTR(err);
 
 	mr = pd->device->get_dma_mr(pd, mr_access_flags);
 
@@ -983,6 +988,11 @@ struct ib_mr *ib_reg_phys_mr(struct ib_pd *pd,
 			     u64 *iova_start)
 {
 	struct ib_mr *mr;
+	int err;
+
+	err = ib_check_mr_access(mr_access_flags);
+	if (err)
+		return ERR_PTR(err);
 
 	if (!pd->device->reg_phys_mr)
 		return ERR_PTR(-ENOSYS);
@@ -1013,6 +1023,10 @@ int ib_rereg_phys_mr(struct ib_mr *mr,
 	struct ib_pd *old_pd;
 	int ret;
 
+	ret = ib_check_mr_access(mr_access_flags);
+	if (ret)
+		return ret;
+
 	if (!mr->device->rereg_phys_mr)
 		return -ENOSYS;
 
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 60354d53948e..68c053d0d629 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -2386,4 +2386,17 @@ struct ib_flow *ib_create_flow(struct ib_qp *qp,
 			       struct ib_flow_attr *flow_attr, int domain);
 int ib_destroy_flow(struct ib_flow *flow_id);
 
+static inline int ib_check_mr_access(int flags)
+{
+	/*
+	 * Local write permission is required if remote write or
+	 * remote atomic permission is also requested.
+	 */
+	if (flags & (IB_ACCESS_REMOTE_ATOMIC | IB_ACCESS_REMOTE_WRITE) &&
+	    !(flags & IB_ACCESS_LOCAL_WRITE))
+		return -EINVAL;
+
+	return 0;
+}
+
 #endif /* IB_VERBS_H */
-- 
cgit 


From 9e08ef1afb109c2059e7c1e4755fcafd9be37260 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Thu, 14 Nov 2013 13:00:17 +1100
Subject: NFS: correctly report misuse of "migration" mount option.

The current test on valid use of the "migration" mount option can never
report an error as it will only do so if
    mnt->version !=4 && mnt->minor_version != 0
(and some other condition), but if that test would succeed, then the previous
test has already gone-to  out_minorversion_mismatch.

So change the && to an || to get correct semantics.

Signed-off-by: NeilBrown <neilb@suse.de>
Acked-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/super.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 317d6fc2160e..910ed906eb82 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -1614,7 +1614,7 @@ static int nfs_parse_mount_options(char *raw,
 		goto out_minorversion_mismatch;
 
 	if (mnt->options & NFS_OPTION_MIGRATION &&
-	    mnt->version != 4 && mnt->minorversion != 0)
+	    (mnt->version != 4 || mnt->minorversion != 0))
 		goto out_migration_misuse;
 
 	/*
-- 
cgit 


From 8c2fabc6542d9d0f8b16bd1045c2eda59bdcde13 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Wed, 13 Nov 2013 08:50:33 -0800
Subject: nfs: fix pnfs Kconfig defaults

Defaulting to m seem to prevent building the pnfs layout modules into the
kernel.  Default to the value of CONFIG_NFS_V4 make sure they are
built in for built-in NFSv4 support and modular for a modular NFSv4.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/Kconfig | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
index 38c1768b4142..3dece03f2fc8 100644
--- a/fs/nfs/Kconfig
+++ b/fs/nfs/Kconfig
@@ -116,17 +116,17 @@ config NFS_V4_2
 config PNFS_FILE_LAYOUT
 	tristate
 	depends on NFS_V4_1
-	default m
+	default NFS_V4
 
 config PNFS_BLOCK
 	tristate
 	depends on NFS_V4_1 && BLK_DEV_DM
-	default m
+	default NFS_V4
 
 config PNFS_OBJLAYOUT
 	tristate
 	depends on NFS_V4_1 && SCSI_OSD_ULD
-	default m
+	default NFS_V4
 
 config NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
 	string "NFSv4.1 Implementation ID Domain"
-- 
cgit 


From b2ea8ef559b4d94190009f3651b5b3ab7c05afd3 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon, 4 Nov 2013 08:13:45 +0100
Subject: drm/i915: flush cursors harder
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Apparently they need the same treatment as primary planes. This fixes
modesetting failures because of stuck cursors (!) on Thomas' i830M
machine.

I've figured while at it I'll also roll it out for the ivb 3 pipe
version of this function. I didn't do this for i845/i865 since Bspec
says the update mechanism works differently, and there's some
additional rules about what can be updated in which order.

Tested-by: Thomas Richter <thor@math.tu-berlin.de>
Cc: stable@vger.kernel.org
Cc:  Thomas Richter <thor@math.tu-berlin.de>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/i915/intel_display.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 3cddd508d110..c9882e816af8 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -7184,7 +7184,9 @@ static void i9xx_update_cursor(struct drm_crtc *crtc, u32 base)
 		intel_crtc->cursor_visible = visible;
 	}
 	/* and commit changes on next vblank */
+	POSTING_READ(CURCNTR(pipe));
 	I915_WRITE(CURBASE(pipe), base);
+	POSTING_READ(CURBASE(pipe));
 }
 
 static void ivb_update_cursor(struct drm_crtc *crtc, u32 base)
@@ -7213,7 +7215,9 @@ static void ivb_update_cursor(struct drm_crtc *crtc, u32 base)
 		intel_crtc->cursor_visible = visible;
 	}
 	/* and commit changes on next vblank */
+	POSTING_READ(CURCNTR_IVB(pipe));
 	I915_WRITE(CURBASE_IVB(pipe), base);
+	POSTING_READ(CURBASE_IVB(pipe));
 }
 
 /* If no-part of the cursor is visible on the framebuffer, then the GPU may hang... */
-- 
cgit 


From 3e850edd58800e7b9b29a8dc2c950ebdf489a3e3 Mon Sep 17 00:00:00 2001
From: "Luis R. Rodriguez" <mcgrof@do-not-panic.com>
Date: Tue, 12 Nov 2013 19:33:20 +0100
Subject: ath: fix dynamic user regulatory settings

A world regulatory domain check was in place that
prevents user dynamic regulatory hints from being
processed. This was there for historical reasons
as this was only possible previously for world
roaming cards and dynamic regulatory settings was
only possible for country IEs. Fix this by enforcing
the world regulatory domain check only for when the
initiator is a country IE. Support for dynamic user
regulatory support is already checked.

Signed-off-by: Luis R. Rodriguez <mcgrof@do-not-panic.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/regd.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/ath/regd.c b/drivers/net/wireless/ath/regd.c
index c00687e05688..1217c52ab28e 100644
--- a/drivers/net/wireless/ath/regd.c
+++ b/drivers/net/wireless/ath/regd.c
@@ -362,7 +362,8 @@ static int __ath_reg_dyn_country(struct wiphy *wiphy,
 {
 	u16 country_code;
 
-	if (!ath_is_world_regd(reg))
+	if (request->initiator == NL80211_REGDOM_SET_BY_COUNTRY_IE &&
+	    !ath_is_world_regd(reg))
 		return -EINVAL;
 
 	country_code = ath_regd_find_country_by_name(request->alpha2);
-- 
cgit 


From c7ce155bf81d9b010f5710e32f749a7dfa8ad248 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Thu, 14 Nov 2013 15:25:23 +0530
Subject: ath9k: Update AR9462 2.1 initvals

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ar9462_2p1_initvals.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar9462_2p1_initvals.h b/drivers/net/wireless/ath/ath9k/ar9462_2p1_initvals.h
index 4dbc294df7e3..57fc5f459d0a 100644
--- a/drivers/net/wireless/ath/ath9k/ar9462_2p1_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9462_2p1_initvals.h
@@ -361,7 +361,7 @@ static const u32 ar9462_2p1_baseband_postamble[][5] = {
 	{0x00009e14, 0x37b95d5e, 0x37b9605e, 0x3236605e, 0x32365a5e},
 	{0x00009e18, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
 	{0x00009e1c, 0x0001cf9c, 0x0001cf9c, 0x00021f9c, 0x00021f9c},
-	{0x00009e20, 0x000003b5, 0x000003b5, 0x000003ce, 0x000003ce},
+	{0x00009e20, 0x000003a5, 0x000003a5, 0x000003a5, 0x000003a5},
 	{0x00009e2c, 0x0000001c, 0x0000001c, 0x00000021, 0x00000021},
 	{0x00009e3c, 0xcf946220, 0xcf946220, 0xcfd5c782, 0xcfd5c282},
 	{0x00009e44, 0x62321e27, 0x62321e27, 0xfe291e27, 0xfe291e27},
@@ -400,7 +400,7 @@ static const u32 ar9462_2p1_baseband_postamble[][5] = {
 	{0x0000ae04, 0x001c0000, 0x001c0000, 0x001c0000, 0x00100000},
 	{0x0000ae18, 0x00000000, 0x00000000, 0x00000000, 0x00000000},
 	{0x0000ae1c, 0x0000019c, 0x0000019c, 0x0000019c, 0x0000019c},
-	{0x0000ae20, 0x000001b5, 0x000001b5, 0x000001ce, 0x000001ce},
+	{0x0000ae20, 0x000001a6, 0x000001a6, 0x000001aa, 0x000001aa},
 	{0x0000b284, 0x00000000, 0x00000000, 0x00000550, 0x00000550},
 };
 
@@ -472,7 +472,7 @@ static const u32 ar9462_2p1_radio_postamble[][5] = {
 
 static const u32 ar9462_2p1_soc_preamble[][2] = {
 	/* Addr      allmodes  */
-	{0x000040a4, 0x00a0c1c9},
+	{0x000040a4, 0x00a0c9c9},
 	{0x00007020, 0x00000000},
 	{0x00007034, 0x00000002},
 	{0x00007038, 0x000004c2},
-- 
cgit 


From 6fcbe538be43e360dc286da532f5add2fe7f46d8 Mon Sep 17 00:00:00 2001
From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Date: Thu, 14 Nov 2013 15:26:06 +0530
Subject: ath9k: Fix issue with MCS15

On some boards which are based on AR9300, AR9580 or
AR9550, MCS15 usage is problematic.

This is because these boards use a "frequency doubler",
which doubles the refclk to get better EVM, but causes
spurs. Handle this properly in the driver to recover
throughput.

Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/ath/ath9k/ar9003_phy.c | 50 +++++++++++++++++++++++++++++
 drivers/net/wireless/ath/ath9k/ar9003_phy.h | 11 +++++++
 2 files changed, 61 insertions(+)

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.c b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
index 11f53589a3f3..d39b79f5e841 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
@@ -701,6 +701,54 @@ static int ar9550_hw_get_modes_txgain_index(struct ath_hw *ah,
 	return ret;
 }
 
+static void ar9003_doubler_fix(struct ath_hw *ah)
+{
+	if (AR_SREV_9300(ah) || AR_SREV_9580(ah) || AR_SREV_9550(ah)) {
+		REG_RMW(ah, AR_PHY_65NM_CH0_RXTX2,
+			1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S |
+			1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S, 0);
+		REG_RMW(ah, AR_PHY_65NM_CH1_RXTX2,
+			1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S |
+			1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S, 0);
+		REG_RMW(ah, AR_PHY_65NM_CH2_RXTX2,
+			1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S |
+			1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S, 0);
+
+		udelay(200);
+
+		REG_CLR_BIT(ah, AR_PHY_65NM_CH0_RXTX2,
+			    AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK);
+		REG_CLR_BIT(ah, AR_PHY_65NM_CH1_RXTX2,
+			    AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK);
+		REG_CLR_BIT(ah, AR_PHY_65NM_CH2_RXTX2,
+			    AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK);
+
+		udelay(1);
+
+		REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_RXTX2,
+			      AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK, 1);
+		REG_RMW_FIELD(ah, AR_PHY_65NM_CH1_RXTX2,
+			      AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK, 1);
+		REG_RMW_FIELD(ah, AR_PHY_65NM_CH2_RXTX2,
+			      AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK, 1);
+
+		udelay(200);
+
+		REG_RMW_FIELD(ah, AR_PHY_65NM_CH0_SYNTH12,
+			      AR_PHY_65NM_CH0_SYNTH12_VREFMUL3, 0xf);
+
+		REG_RMW(ah, AR_PHY_65NM_CH0_RXTX2, 0,
+			1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S |
+			1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S);
+		REG_RMW(ah, AR_PHY_65NM_CH1_RXTX2, 0,
+			1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S |
+			1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S);
+		REG_RMW(ah, AR_PHY_65NM_CH2_RXTX2, 0,
+			1 << AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S |
+			1 << AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S);
+	}
+}
+
 static int ar9003_hw_process_ini(struct ath_hw *ah,
 				 struct ath9k_channel *chan)
 {
@@ -726,6 +774,8 @@ static int ar9003_hw_process_ini(struct ath_hw *ah,
 					   modesIndex);
 	}
 
+	ar9003_doubler_fix(ah);
+
 	/*
 	 * RXGAIN initvals.
 	 */
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_phy.h b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
index fca624322dc8..2af667beb273 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
@@ -656,13 +656,24 @@
 #define AR_PHY_SYNTH4_LONG_SHIFT_SELECT   ((AR_SREV_9462(ah) || AR_SREV_9565(ah)) ? 0x00000001 : 0x00000002)
 #define AR_PHY_SYNTH4_LONG_SHIFT_SELECT_S ((AR_SREV_9462(ah) || AR_SREV_9565(ah)) ? 0 : 1)
 #define AR_PHY_65NM_CH0_SYNTH7      0x16098
+#define AR_PHY_65NM_CH0_SYNTH12     0x160ac
 #define AR_PHY_65NM_CH0_BIAS1       0x160c0
 #define AR_PHY_65NM_CH0_BIAS2       0x160c4
 #define AR_PHY_65NM_CH0_BIAS4       0x160cc
+#define AR_PHY_65NM_CH0_RXTX2       0x16104
+#define AR_PHY_65NM_CH1_RXTX2       0x16504
+#define AR_PHY_65NM_CH2_RXTX2       0x16904
 #define AR_PHY_65NM_CH0_RXTX4       0x1610c
 #define AR_PHY_65NM_CH1_RXTX4       0x1650c
 #define AR_PHY_65NM_CH2_RXTX4       0x1690c
 
+#define AR_PHY_65NM_CH0_SYNTH12_VREFMUL3           0x00780000
+#define AR_PHY_65NM_CH0_SYNTH12_VREFMUL3_S         19
+#define AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK         0x00000004
+#define AR_PHY_65NM_CH0_RXTX2_SYNTHON_MASK_S       2
+#define AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK        0x00000008
+#define AR_PHY_65NM_CH0_RXTX2_SYNTHOVR_MASK_S      3
+
 #define AR_CH0_TOP	(AR_SREV_9300(ah) ? 0x16288 : \
 			 (((AR_SREV_9462(ah) || AR_SREV_9565(ah)) ? 0x1628c : 0x16280)))
 #define AR_CH0_TOP_XPABIASLVL (AR_SREV_9550(ah) ? 0x3c0 : 0x300)
-- 
cgit 


From b4089d6d8e71a7293e2192025dfa507a04f661c4 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Thu, 14 Nov 2013 21:33:15 +0100
Subject: rt2x00: fix a crash bug in the HT descriptor handling fix

Commit "rt2x00: fix HT TX descriptor settings regression"
assumes that the control parameter to rt2x00mac_tx is always non-NULL.
There is an internal call in rt2x00lib_bc_buffer_iter where NULL is
passed. Fix the resulting crash by adding an initialized dummy on-stack
ieee80211_tx_control struct.

Cc: stable@vger.kernel.org # 3.7+
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Acked-by: Gertjan van Wingerde <gwingerde@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rt2x00/rt2x00dev.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c
index 080b1fcae5fa..9dd92a700442 100644
--- a/drivers/net/wireless/rt2x00/rt2x00dev.c
+++ b/drivers/net/wireless/rt2x00/rt2x00dev.c
@@ -181,6 +181,7 @@ static void rt2x00lib_autowakeup(struct work_struct *work)
 static void rt2x00lib_bc_buffer_iter(void *data, u8 *mac,
 				     struct ieee80211_vif *vif)
 {
+	struct ieee80211_tx_control control = {};
 	struct rt2x00_dev *rt2x00dev = data;
 	struct sk_buff *skb;
 
@@ -195,7 +196,7 @@ static void rt2x00lib_bc_buffer_iter(void *data, u8 *mac,
 	 */
 	skb = ieee80211_get_buffered_bc(rt2x00dev->hw, vif);
 	while (skb) {
-		rt2x00mac_tx(rt2x00dev->hw, NULL, skb);
+		rt2x00mac_tx(rt2x00dev->hw, &control, skb);
 		skb = ieee80211_get_buffered_bc(rt2x00dev->hw, vif);
 	}
 }
-- 
cgit 


From 68b76e99d1f7b696d49b5e99286401150072987a Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Thu, 14 Nov 2013 19:10:37 -0800
Subject: mwifiex: use return value of mwifiex_add_virtual_intf() correctly

mwifiex_add_virtual_intf() returns ERR_PTR values. So use IS_ERR()
macro instead of checking for NULL pointer.

Reported-by: Ujjal Roy <royujjal@gmail.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/mwifiex/main.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index 9d7c9d354d34..7c7da3ea55a9 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -418,6 +418,7 @@ static void mwifiex_fw_dpc(const struct firmware *firmware, void *context)
 	struct mwifiex_fw_image fw;
 	struct semaphore *sem = adapter->card_sem;
 	bool init_failed = false;
+	struct wireless_dev *wdev;
 
 	if (!firmware) {
 		dev_err(adapter->dev,
@@ -474,8 +475,9 @@ static void mwifiex_fw_dpc(const struct firmware *firmware, void *context)
 
 	rtnl_lock();
 	/* Create station interface by default */
-	if (!mwifiex_add_virtual_intf(adapter->wiphy, "mlan%d",
-				      NL80211_IFTYPE_STATION, NULL, NULL)) {
+	wdev = mwifiex_add_virtual_intf(adapter->wiphy, "mlan%d",
+					NL80211_IFTYPE_STATION, NULL, NULL);
+	if (IS_ERR(wdev)) {
 		dev_err(adapter->dev, "cannot create default STA interface\n");
 		goto err_add_intf;
 	}
-- 
cgit 


From bec568ff51078276109e21b5521829e2dd60a7fa Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Thu, 14 Nov 2013 19:10:38 -0800
Subject: mwifiex: failure path handling in mwifiex_add_virtual_intf()

1) If register_netdevice() is failed, we are freeing netdev
pointer, but priv->netdev is not cleared. This gives kernel
paging request error when driver is unloaded or interface is
deleted. Fix the problem by clearing the pointer.
2) Fix memory leak issue by freeing 'wdev' in failure paths.
Also, clear priv->wdev pointer.

As mwifiex_add_virtual_intf() successfully handles the
failure conditions, redundant code under err_add_intf label
is removed in this patch.

Reported-by: Ujjal Roy <royujjal@gmail.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/mwifiex/cfg80211.c | 20 ++++++++++++++++----
 drivers/net/wireless/mwifiex/main.c     | 13 ++-----------
 2 files changed, 18 insertions(+), 15 deletions(-)

diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index fbad00a5abc8..ccc9c0866b25 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -2210,8 +2210,10 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
 		priv->bss_started = 0;
 		priv->bss_num = 0;
 
-		if (mwifiex_cfg80211_init_p2p_client(priv))
-			return ERR_PTR(-EFAULT);
+		if (mwifiex_cfg80211_init_p2p_client(priv)) {
+			wdev = ERR_PTR(-EFAULT);
+			goto done;
+		}
 
 		break;
 	default:
@@ -2224,7 +2226,8 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
 	if (!dev) {
 		wiphy_err(wiphy, "no memory available for netdevice\n");
 		priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
-		return ERR_PTR(-ENOMEM);
+		wdev = ERR_PTR(-ENOMEM);
+		goto done;
 	}
 
 	mwifiex_init_priv_params(priv, dev);
@@ -2264,7 +2267,9 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
 		wiphy_err(wiphy, "cannot register virtual network device\n");
 		free_netdev(dev);
 		priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED;
-		return ERR_PTR(-EFAULT);
+		priv->netdev = NULL;
+		wdev = ERR_PTR(-EFAULT);
+		goto done;
 	}
 
 	sema_init(&priv->async_sem, 1);
@@ -2274,6 +2279,13 @@ struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy,
 #ifdef CONFIG_DEBUG_FS
 	mwifiex_dev_debugfs_init(priv);
 #endif
+
+done:
+	if (IS_ERR(wdev)) {
+		kfree(priv->wdev);
+		priv->wdev = NULL;
+	}
+
 	return wdev;
 }
 EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf);
diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index 7c7da3ea55a9..9236b42007fb 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -411,7 +411,7 @@ static void mwifiex_terminate_workqueue(struct mwifiex_adapter *adapter)
  */
 static void mwifiex_fw_dpc(const struct firmware *firmware, void *context)
 {
-	int ret, i;
+	int ret;
 	char fmt[64];
 	struct mwifiex_private *priv;
 	struct mwifiex_adapter *adapter = context;
@@ -479,6 +479,7 @@ static void mwifiex_fw_dpc(const struct firmware *firmware, void *context)
 					NL80211_IFTYPE_STATION, NULL, NULL);
 	if (IS_ERR(wdev)) {
 		dev_err(adapter->dev, "cannot create default STA interface\n");
+		rtnl_unlock();
 		goto err_add_intf;
 	}
 	rtnl_unlock();
@@ -488,16 +489,6 @@ static void mwifiex_fw_dpc(const struct firmware *firmware, void *context)
 	goto done;
 
 err_add_intf:
-	for (i = 0; i < adapter->priv_num; i++) {
-		priv = adapter->priv[i];
-
-		if (!priv)
-			continue;
-
-		if (priv->wdev && priv->netdev)
-			mwifiex_del_virtual_intf(adapter->wiphy, priv->wdev);
-	}
-	rtnl_unlock();
 err_register_cfg80211:
 	wiphy_unregister(adapter->wiphy);
 	wiphy_free(adapter->wiphy);
-- 
cgit 


From d1af2943da89f180274c846d593049e464026baf Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Thu, 14 Nov 2013 19:10:39 -0800
Subject: mwifiex: fix NULL pointer dereference in mwifiex_fw_dpc

We don't need to free/unregister wiphy when
mwifiex_register_cfg80211() fails. The routine internally takes
care of it. This redundant code can cause NULL pointer dereference,
for adapter->wiphy.

Reported-by: Ujjal Roy <royujjal@gmail.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/mwifiex/main.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index 9236b42007fb..42d9a68f45de 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -470,7 +470,7 @@ static void mwifiex_fw_dpc(const struct firmware *firmware, void *context)
 	priv = adapter->priv[MWIFIEX_BSS_ROLE_STA];
 	if (mwifiex_register_cfg80211(adapter)) {
 		dev_err(adapter->dev, "cannot register with cfg80211\n");
-		goto err_register_cfg80211;
+		goto err_init_fw;
 	}
 
 	rtnl_lock();
@@ -489,7 +489,6 @@ static void mwifiex_fw_dpc(const struct firmware *firmware, void *context)
 	goto done;
 
 err_add_intf:
-err_register_cfg80211:
 	wiphy_unregister(adapter->wiphy);
 	wiphy_free(adapter->wiphy);
 err_init_fw:
-- 
cgit 


From 98a4635bba7050afdbdce428cc44a0471779ffc5 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Thu, 14 Nov 2013 19:10:40 -0800
Subject: mwifiex: fix potential mem leak in .del_virtual_intf

1) Currently we freeing wdev for each interface in driver unload
path. We may leak memory if user have already deleted an interface.
mwifiex_add_virtual_intf() allocates wdev structure. So it should
be freed in mwifiex_del_virtual_intf().
This will make sure that wdev will be freed when user deletes an
interface and also in unload path.
2) "priv->netdev->ieee80211_ptr" should also be cleared in
mwifiex_del_virtual_intf.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/mwifiex/cfg80211.c | 3 +++
 drivers/net/wireless/mwifiex/main.c     | 6 ------
 2 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c
index ccc9c0866b25..aeaea0e3b4c4 100644
--- a/drivers/net/wireless/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/mwifiex/cfg80211.c
@@ -2310,7 +2310,10 @@ int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev)
 		unregister_netdevice(wdev->netdev);
 
 	/* Clear the priv in adapter */
+	priv->netdev->ieee80211_ptr = NULL;
 	priv->netdev = NULL;
+	kfree(wdev);
+	priv->wdev = NULL;
 
 	priv->media_connected = false;
 
diff --git a/drivers/net/wireless/mwifiex/main.c b/drivers/net/wireless/mwifiex/main.c
index 42d9a68f45de..78e8a6666cc6 100644
--- a/drivers/net/wireless/mwifiex/main.c
+++ b/drivers/net/wireless/mwifiex/main.c
@@ -998,12 +998,6 @@ int mwifiex_remove_card(struct mwifiex_adapter *adapter, struct semaphore *sem)
 	wiphy_unregister(priv->wdev->wiphy);
 	wiphy_free(priv->wdev->wiphy);
 
-	for (i = 0; i < adapter->priv_num; i++) {
-		priv = adapter->priv[i];
-		if (priv)
-			kfree(priv->wdev);
-	}
-
 	mwifiex_terminate_workqueue(adapter);
 
 	/* Unregister device */
-- 
cgit 


From 3c59e328eb4ff23781bfa4cfc9f6f496003bf8b9 Mon Sep 17 00:00:00 2001
From: Amitkumar Karwar <akarwar@marvell.com>
Date: Thu, 14 Nov 2013 19:10:41 -0800
Subject: mwifiex: fix memory leak issue for sdio and pcie cards

When driver is failed to load, card pointer doesn't get
freed. We will free it in cleanup handler which is called
in failure as well as unload path.
Also, update drvdata in init/cleanup handlers instead of
register/unregister handlers.

Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/mwifiex/pcie.c | 2 +-
 drivers/net/wireless/mwifiex/sdio.c | 7 ++++---
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/mwifiex/pcie.c b/drivers/net/wireless/mwifiex/pcie.c
index 33fa9432b241..03688aa14e8a 100644
--- a/drivers/net/wireless/mwifiex/pcie.c
+++ b/drivers/net/wireless/mwifiex/pcie.c
@@ -232,7 +232,6 @@ static void mwifiex_pcie_remove(struct pci_dev *pdev)
 	}
 
 	mwifiex_remove_card(card->adapter, &add_remove_card_sem);
-	kfree(card);
 }
 
 static void mwifiex_pcie_shutdown(struct pci_dev *pdev)
@@ -2313,6 +2312,7 @@ static void mwifiex_pcie_cleanup(struct mwifiex_adapter *adapter)
 		pci_release_region(pdev, 0);
 		pci_set_drvdata(pdev, NULL);
 	}
+	kfree(card);
 }
 
 /*
diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c
index 9bf8898743ab..b44a31523461 100644
--- a/drivers/net/wireless/mwifiex/sdio.c
+++ b/drivers/net/wireless/mwifiex/sdio.c
@@ -196,7 +196,6 @@ mwifiex_sdio_remove(struct sdio_func *func)
 	}
 
 	mwifiex_remove_card(card->adapter, &add_remove_card_sem);
-	kfree(card);
 }
 
 /*
@@ -1745,7 +1744,6 @@ mwifiex_unregister_dev(struct mwifiex_adapter *adapter)
 		sdio_claim_host(card->func);
 		sdio_disable_func(card->func);
 		sdio_release_host(card->func);
-		sdio_set_drvdata(card->func, NULL);
 	}
 }
 
@@ -1773,7 +1771,6 @@ static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
 		return ret;
 	}
 
-	sdio_set_drvdata(func, card);
 
 	adapter->dev = &func->dev;
 
@@ -1801,6 +1798,8 @@ static int mwifiex_init_sdio(struct mwifiex_adapter *adapter)
 	int ret;
 	u8 sdio_ireg;
 
+	sdio_set_drvdata(card->func, card);
+
 	/*
 	 * Read the HOST_INT_STATUS_REG for ACK the first interrupt got
 	 * from the bootloader. If we don't do this we get a interrupt
@@ -1883,6 +1882,8 @@ static void mwifiex_cleanup_sdio(struct mwifiex_adapter *adapter)
 	kfree(card->mpa_rx.len_arr);
 	kfree(card->mpa_tx.buf);
 	kfree(card->mpa_rx.buf);
+	sdio_set_drvdata(card->func, NULL);
+	kfree(card);
 }
 
 /*
-- 
cgit 


From 353d2a69ea2607acd80c6bea7da2ab9bb65d2622 Mon Sep 17 00:00:00 2001
From: Ujjal Roy <royujjal@gmail.com>
Date: Thu, 14 Nov 2013 19:10:42 -0800
Subject: mwifiex: fix issues in driver unload path for USB chipsets

1) After driver load failure, clear 'card->adapter' instead of
card pointer so that card specific cleanup is performed later
when user unloads the driver.

2) Clear usb_card pointer in disconnect handler to avoid invalid
memory access when user unloads the driver after removing the
card.

Signed-off-by: Ujjal Roy <royujjal@gmail.com>
Signed-off-by: Amitkumar Karwar <akarwar@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/mwifiex/usb.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/drivers/net/wireless/mwifiex/usb.c b/drivers/net/wireless/mwifiex/usb.c
index 1c70b8d09227..edf5b7a24900 100644
--- a/drivers/net/wireless/mwifiex/usb.c
+++ b/drivers/net/wireless/mwifiex/usb.c
@@ -350,7 +350,6 @@ static int mwifiex_usb_probe(struct usb_interface *intf,
 
 	card->udev = udev;
 	card->intf = intf;
-	usb_card = card;
 
 	pr_debug("info: bcdUSB=%#x Device Class=%#x SubClass=%#x Protocol=%#x\n",
 		 udev->descriptor.bcdUSB, udev->descriptor.bDeviceClass,
@@ -525,25 +524,28 @@ static int mwifiex_usb_resume(struct usb_interface *intf)
 static void mwifiex_usb_disconnect(struct usb_interface *intf)
 {
 	struct usb_card_rec *card = usb_get_intfdata(intf);
-	struct mwifiex_adapter *adapter;
 
-	if (!card || !card->adapter) {
-		pr_err("%s: card or card->adapter is NULL\n", __func__);
+	if (!card) {
+		pr_err("%s: card is NULL\n", __func__);
 		return;
 	}
 
-	adapter = card->adapter;
-	if (!adapter->priv_num)
-		return;
-
 	mwifiex_usb_free(card);
 
-	dev_dbg(adapter->dev, "%s: removing card\n", __func__);
-	mwifiex_remove_card(adapter, &add_remove_card_sem);
+	if (card->adapter) {
+		struct mwifiex_adapter *adapter = card->adapter;
+
+		if (!adapter->priv_num)
+			return;
+
+		dev_dbg(adapter->dev, "%s: removing card\n", __func__);
+		mwifiex_remove_card(adapter, &add_remove_card_sem);
+	}
 
 	usb_set_intfdata(intf, NULL);
 	usb_put_dev(interface_to_usbdev(intf));
 	kfree(card);
+	usb_card = NULL;
 
 	return;
 }
@@ -754,6 +756,7 @@ static int mwifiex_register_dev(struct mwifiex_adapter *adapter)
 	card->adapter = adapter;
 	adapter->dev = &card->udev->dev;
 	strcpy(adapter->fw_name, USB8797_DEFAULT_FW_NAME);
+	usb_card = card;
 
 	return 0;
 }
@@ -762,7 +765,7 @@ static void mwifiex_unregister_dev(struct mwifiex_adapter *adapter)
 {
 	struct usb_card_rec *card = (struct usb_card_rec *)adapter->card;
 
-	usb_set_intfdata(card->intf, NULL);
+	card->adapter = NULL;
 }
 
 static int mwifiex_prog_fw_w_helper(struct mwifiex_adapter *adapter,
@@ -1004,7 +1007,7 @@ static void mwifiex_usb_cleanup_module(void)
 	if (!down_interruptible(&add_remove_card_sem))
 		up(&add_remove_card_sem);
 
-	if (usb_card) {
+	if (usb_card && usb_card->adapter) {
 		struct mwifiex_adapter *adapter = usb_card->adapter;
 		int i;
 
-- 
cgit 


From eafbdde9c5629bea58df07275c5917eb42afbbe7 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Sun, 10 Nov 2013 22:11:16 -0600
Subject: rtlwifi: rtl8192cu: Fix more pointer arithmetic errors

This driver uses a number of macros to get and set various fields in the
RX and TX descriptors. To work correctly, a u8 pointer to the descriptor
must be used; however, in some cases a descriptor structure pointer is used
instead. In addition, a duplicated statement is removed.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Reported-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/rtlwifi/rtl8192cu/mac.c | 6 +++---
 drivers/net/wireless/rtlwifi/rtl8192cu/trx.c | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c b/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c
index 393685390f3e..e26312fb4356 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/mac.c
@@ -769,7 +769,7 @@ static long _rtl92c_signal_scale_mapping(struct ieee80211_hw *hw,
 
 static void _rtl92c_query_rxphystatus(struct ieee80211_hw *hw,
 				      struct rtl_stats *pstats,
-				      struct rx_desc_92c *pdesc,
+				      struct rx_desc_92c *p_desc,
 				      struct rx_fwinfo_92c *p_drvinfo,
 				      bool packet_match_bssid,
 				      bool packet_toself,
@@ -784,11 +784,11 @@ static void _rtl92c_query_rxphystatus(struct ieee80211_hw *hw,
 	u32 rssi, total_rssi = 0;
 	bool in_powersavemode = false;
 	bool is_cck_rate;
+	u8 *pdesc = (u8 *)p_desc;
 
-	is_cck_rate = RX_HAL_IS_CCK_RATE(pdesc);
+	is_cck_rate = RX_HAL_IS_CCK_RATE(p_desc);
 	pstats->packet_matchbssid = packet_match_bssid;
 	pstats->packet_toself = packet_toself;
-	pstats->is_cck = is_cck_rate;
 	pstats->packet_beacon = packet_beacon;
 	pstats->is_cck = is_cck_rate;
 	pstats->RX_SIGQ[0] = -1;
diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
index b0c346a9e4b8..1bc21ccfa71b 100644
--- a/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
+++ b/drivers/net/wireless/rtlwifi/rtl8192cu/trx.c
@@ -303,10 +303,10 @@ out:
 bool rtl92cu_rx_query_desc(struct ieee80211_hw *hw,
 			   struct rtl_stats *stats,
 			   struct ieee80211_rx_status *rx_status,
-			   u8 *p_desc, struct sk_buff *skb)
+			   u8 *pdesc, struct sk_buff *skb)
 {
 	struct rx_fwinfo_92c *p_drvinfo;
-	struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc;
+	struct rx_desc_92c *p_desc = (struct rx_desc_92c *)pdesc;
 	u32 phystatus = GET_RX_DESC_PHY_STATUS(pdesc);
 
 	stats->length = (u16) GET_RX_DESC_PKT_LEN(pdesc);
@@ -345,7 +345,7 @@ bool rtl92cu_rx_query_desc(struct ieee80211_hw *hw,
 	if (phystatus) {
 		p_drvinfo = (struct rx_fwinfo_92c *)(skb->data +
 						     stats->rx_bufshift);
-		rtl92c_translate_rx_signal_stuff(hw, skb, stats, pdesc,
+		rtl92c_translate_rx_signal_stuff(hw, skb, stats, p_desc,
 						 p_drvinfo);
 	}
 	/*rx_status->qual = stats->signal; */
-- 
cgit 


From 71473dbd66d4a61be4cd531ef96b4877f6ee3941 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Sat, 9 Nov 2013 15:59:02 -0200
Subject: drm: radeon: ni_dpm: Fix unused variable warning when CONFIG_ACPI=n

With CONFIG_ACPI=n the following build warning is seen:

drivers/gpu/drm/radeon/ni_dpm.c:3448:31: warning: unused variable 'eg_pi' [-Wunused-variable]

Move the definition of eg_pi inside the CONFIG_ACPI 'if' block.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/radeon/ni_dpm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/ni_dpm.c b/drivers/gpu/drm/radeon/ni_dpm.c
index f26339028154..cdc003085a76 100644
--- a/drivers/gpu/drm/radeon/ni_dpm.c
+++ b/drivers/gpu/drm/radeon/ni_dpm.c
@@ -3445,9 +3445,9 @@ static int ni_enable_smc_cac(struct radeon_device *rdev,
 static int ni_pcie_performance_request(struct radeon_device *rdev,
 				       u8 perf_req, bool advertise)
 {
+#if defined(CONFIG_ACPI)
 	struct evergreen_power_info *eg_pi = evergreen_get_pi(rdev);
 
-#if defined(CONFIG_ACPI)
 	if ((perf_req == PCIE_PERF_REQ_PECI_GEN1) ||
             (perf_req == PCIE_PERF_REQ_PECI_GEN2)) {
 		if (eg_pi->pcie_performance_request_registered == false)
-- 
cgit 


From 936b32643cb03dcb34ef5dab81970229b1cc2a33 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Tue, 12 Nov 2013 12:31:54 -0500
Subject: drm/radeon: cypress_dpm: Fix unused variable warning when
 CONFIG_ACPI=n

With CONFIG_ACPI=n the following build warning is seen:

drivers/gpu/drm/radeon/cypress_dpm.c:302:31: warning: unused variable 'eg_pi' [-Wunused-variable]

Protect eg_pi with CONFIG_ACPI.

Based on patch from: Fabio Estevam <fabio.estevam@freescale.com>
but doesn't mix allocation and code.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/radeon/cypress_dpm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/radeon/cypress_dpm.c b/drivers/gpu/drm/radeon/cypress_dpm.c
index 91bb470de0a3..920e1e4a52c5 100644
--- a/drivers/gpu/drm/radeon/cypress_dpm.c
+++ b/drivers/gpu/drm/radeon/cypress_dpm.c
@@ -299,7 +299,9 @@ void cypress_program_response_times(struct radeon_device *rdev)
 static int cypress_pcie_performance_request(struct radeon_device *rdev,
 					    u8 perf_req, bool advertise)
 {
+#if defined(CONFIG_ACPI)
 	struct evergreen_power_info *eg_pi = evergreen_get_pi(rdev);
+#endif
 	u32 tmp;
 
 	udelay(10);
-- 
cgit 


From fae009d15a44e5f1d938340facf4b8bc7dc69a09 Mon Sep 17 00:00:00 2001
From: Jerome Glisse <jglisse@redhat.com>
Date: Wed, 6 Nov 2013 17:42:02 -0500
Subject: radeon/i2c: do not count reg index in number of i2c byte we are
 writing.

Useless to count the register index in number of bytes we are writing.

Fixes a regression with hw i2c enabled.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
 drivers/gpu/drm/radeon/atombios_i2c.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/radeon/atombios_i2c.c b/drivers/gpu/drm/radeon/atombios_i2c.c
index deaf98cdca3a..0652ee0a2098 100644
--- a/drivers/gpu/drm/radeon/atombios_i2c.c
+++ b/drivers/gpu/drm/radeon/atombios_i2c.c
@@ -56,8 +56,10 @@ static int radeon_process_i2c_ch(struct radeon_i2c_chan *chan,
 			return -EINVAL;
 		}
 		args.ucRegIndex = buf[0];
-		if (num > 1)
-			memcpy(&out, &buf[1], num - 1);
+		if (num > 1) {
+			num--;
+			memcpy(&out, &buf[1], num);
+		}
 		args.lpI2CDataOut = cpu_to_le16(out);
 	} else {
 		if (num > ATOM_MAX_HW_I2C_READ) {
-- 
cgit 


From 97b6ff6be9da7675aab339334fda996d6c5077d9 Mon Sep 17 00:00:00 2001
From: Jerome Glisse <jglisse@redhat.com>
Date: Tue, 12 Nov 2013 10:51:16 -0500
Subject: radeon: workaround pinning failure on low ram gpu

GPU with low amount of ram can fails at pinning new framebuffer before
unpinning old one. On such failure, retry with unpinning old one before
pinning new one allowing to work around the issue. This is somewhat
ugly but only affect those old GPU we care about.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
 drivers/gpu/drm/radeon/radeon_legacy_crtc.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
index 0c7b8c66301b..0b158f98d287 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
@@ -422,6 +422,7 @@ int radeon_crtc_do_set_base(struct drm_crtc *crtc,
 	/* Pin framebuffer & get tilling informations */
 	obj = radeon_fb->obj;
 	rbo = gem_to_radeon_bo(obj);
+retry:
 	r = radeon_bo_reserve(rbo, false);
 	if (unlikely(r != 0))
 		return r;
@@ -430,6 +431,33 @@ int radeon_crtc_do_set_base(struct drm_crtc *crtc,
 				     &base);
 	if (unlikely(r != 0)) {
 		radeon_bo_unreserve(rbo);
+
+		/* On old GPU like RN50 with little vram pining can fails because
+		 * current fb is taking all space needed. So instead of unpining
+		 * the old buffer after pining the new one, first unpin old one
+		 * and then retry pining new one.
+		 *
+		 * As only master can set mode only master can pin and it is
+		 * unlikely the master client will race with itself especialy
+		 * on those old gpu with single crtc.
+		 *
+		 * We don't shutdown the display controller because new buffer
+		 * will end up in same spot.
+		 */
+		if (!atomic && fb && fb != crtc->fb) {
+			struct radeon_bo *old_rbo;
+			unsigned long nsize, osize;
+
+			old_rbo = gem_to_radeon_bo(to_radeon_framebuffer(fb)->obj);
+			osize = radeon_bo_size(old_rbo);
+			nsize = radeon_bo_size(rbo);
+			if (nsize <= osize && !radeon_bo_reserve(old_rbo, false)) {
+				radeon_bo_unpin(old_rbo);
+				radeon_bo_unreserve(old_rbo);
+				fb = NULL;
+				goto retry;
+			}
+		}
 		return -EINVAL;
 	}
 	radeon_bo_get_tiling_flags(rbo, &tiling_flags, NULL);
-- 
cgit 


From bd80c8ba995c1dbdddee14acc55c541c499e0442 Mon Sep 17 00:00:00 2001
From: Christian König <christian.koenig@amd.com>
Date: Tue, 12 Nov 2013 12:58:04 +0100
Subject: drm/radeon: add semaphore trace point
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
 drivers/gpu/drm/radeon/radeon_semaphore.c |  6 +++++-
 drivers/gpu/drm/radeon/radeon_trace.h     | 36 +++++++++++++++++++++++++++++++
 2 files changed, 41 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/radeon_semaphore.c b/drivers/gpu/drm/radeon/radeon_semaphore.c
index 8dcc20f53d73..97d73bfc8782 100644
--- a/drivers/gpu/drm/radeon/radeon_semaphore.c
+++ b/drivers/gpu/drm/radeon/radeon_semaphore.c
@@ -29,7 +29,7 @@
  */
 #include <drm/drmP.h>
 #include "radeon.h"
-
+#include "radeon_trace.h"
 
 int radeon_semaphore_create(struct radeon_device *rdev,
 			    struct radeon_semaphore **semaphore)
@@ -56,6 +56,8 @@ int radeon_semaphore_create(struct radeon_device *rdev,
 void radeon_semaphore_emit_signal(struct radeon_device *rdev, int ring,
 			          struct radeon_semaphore *semaphore)
 {
+	trace_radeon_semaphore_signale(ring, semaphore);
+
 	--semaphore->waiters;
 	radeon_semaphore_ring_emit(rdev, ring, &rdev->ring[ring], semaphore, false);
 }
@@ -63,6 +65,8 @@ void radeon_semaphore_emit_signal(struct radeon_device *rdev, int ring,
 void radeon_semaphore_emit_wait(struct radeon_device *rdev, int ring,
 			        struct radeon_semaphore *semaphore)
 {
+	trace_radeon_semaphore_wait(ring, semaphore);
+
 	++semaphore->waiters;
 	radeon_semaphore_ring_emit(rdev, ring, &rdev->ring[ring], semaphore, true);
 }
diff --git a/drivers/gpu/drm/radeon/radeon_trace.h b/drivers/gpu/drm/radeon/radeon_trace.h
index 811bca691b36..9f0e18172b6e 100644
--- a/drivers/gpu/drm/radeon/radeon_trace.h
+++ b/drivers/gpu/drm/radeon/radeon_trace.h
@@ -111,6 +111,42 @@ DEFINE_EVENT(radeon_fence_request, radeon_fence_wait_end,
 	    TP_ARGS(dev, seqno)
 );
 
+DECLARE_EVENT_CLASS(radeon_semaphore_request,
+
+	    TP_PROTO(int ring, struct radeon_semaphore *sem),
+
+	    TP_ARGS(ring, sem),
+
+	    TP_STRUCT__entry(
+			     __field(int, ring)
+			     __field(signed, waiters)
+			     __field(uint64_t, gpu_addr)
+			     ),
+
+	    TP_fast_assign(
+			   __entry->ring = ring;
+			   __entry->waiters = sem->waiters;
+			   __entry->gpu_addr = sem->gpu_addr;
+			   ),
+
+	    TP_printk("ring=%u, waiters=%d, addr=%010Lx", __entry->ring,
+		      __entry->waiters, __entry->gpu_addr)
+);
+
+DEFINE_EVENT(radeon_semaphore_request, radeon_semaphore_signale,
+
+	    TP_PROTO(int ring, struct radeon_semaphore *sem),
+
+	    TP_ARGS(ring, sem)
+);
+
+DEFINE_EVENT(radeon_semaphore_request, radeon_semaphore_wait,
+
+	    TP_PROTO(int ring, struct radeon_semaphore *sem),
+
+	    TP_ARGS(ring, sem)
+);
+
 #endif
 
 /* This part must be outside protection */
-- 
cgit 


From 1654b817d8f5f1c27ebc98773fe0e517b0ba2f1e Mon Sep 17 00:00:00 2001
From: Christian König <christian.koenig@amd.com>
Date: Tue, 12 Nov 2013 12:58:05 +0100
Subject: drm/radeon: allow semaphore emission to fail
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

To workaround bugs and/or certain limits it's sometimes
useful to fall back to waiting on fences.

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
 drivers/gpu/drm/radeon/cik.c              |  13 ++-
 drivers/gpu/drm/radeon/cik_sdma.c         |  13 ++-
 drivers/gpu/drm/radeon/evergreen_dma.c    |   9 +--
 drivers/gpu/drm/radeon/r100.c             |   3 +-
 drivers/gpu/drm/radeon/r600.c             |  13 ++-
 drivers/gpu/drm/radeon/r600_dma.c         |  13 ++-
 drivers/gpu/drm/radeon/radeon.h           |  14 ++--
 drivers/gpu/drm/radeon/radeon_asic.h      |  18 ++---
 drivers/gpu/drm/radeon/radeon_cs.c        |   9 ++-
 drivers/gpu/drm/radeon/radeon_fence.c     |  30 +++++++
 drivers/gpu/drm/radeon/radeon_gart.c      |   4 +-
 drivers/gpu/drm/radeon/radeon_ring.c      |  46 +++--------
 drivers/gpu/drm/radeon/radeon_semaphore.c | 127 ++++++++++++++++++++++--------
 drivers/gpu/drm/radeon/rv770_dma.c        |   9 +--
 drivers/gpu/drm/radeon/si_dma.c           |   9 +--
 drivers/gpu/drm/radeon/uvd_v1_0.c         |   4 +-
 drivers/gpu/drm/radeon/uvd_v3_1.c         |   4 +-
 17 files changed, 191 insertions(+), 147 deletions(-)

diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index ae92aa041c6a..811fc1b5b4b9 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -3556,7 +3556,7 @@ void cik_fence_compute_ring_emit(struct radeon_device *rdev,
 	radeon_ring_write(ring, 0);
 }
 
-void cik_semaphore_ring_emit(struct radeon_device *rdev,
+bool cik_semaphore_ring_emit(struct radeon_device *rdev,
 			     struct radeon_ring *ring,
 			     struct radeon_semaphore *semaphore,
 			     bool emit_wait)
@@ -3567,6 +3567,8 @@ void cik_semaphore_ring_emit(struct radeon_device *rdev,
 	radeon_ring_write(ring, PACKET3(PACKET3_MEM_SEMAPHORE, 1));
 	radeon_ring_write(ring, addr & 0xffffffff);
 	radeon_ring_write(ring, (upper_32_bits(addr) & 0xffff) | sel);
+
+	return true;
 }
 
 /**
@@ -3609,13 +3611,8 @@ int cik_copy_cpdma(struct radeon_device *rdev,
 		return r;
 	}
 
-	if (radeon_fence_need_sync(*fence, ring->idx)) {
-		radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
-					    ring->idx);
-		radeon_fence_note_sync(*fence, ring->idx);
-	} else {
-		radeon_semaphore_free(rdev, &sem, NULL);
-	}
+	radeon_semaphore_sync_to(sem, *fence);
+	radeon_semaphore_sync_rings(rdev, sem, ring->idx);
 
 	for (i = 0; i < num_loops; i++) {
 		cur_size_in_bytes = size_in_bytes;
diff --git a/drivers/gpu/drm/radeon/cik_sdma.c b/drivers/gpu/drm/radeon/cik_sdma.c
index 9c9529de20ee..0300727a4f70 100644
--- a/drivers/gpu/drm/radeon/cik_sdma.c
+++ b/drivers/gpu/drm/radeon/cik_sdma.c
@@ -130,7 +130,7 @@ void cik_sdma_fence_ring_emit(struct radeon_device *rdev,
  * Add a DMA semaphore packet to the ring wait on or signal
  * other rings (CIK).
  */
-void cik_sdma_semaphore_ring_emit(struct radeon_device *rdev,
+bool cik_sdma_semaphore_ring_emit(struct radeon_device *rdev,
 				  struct radeon_ring *ring,
 				  struct radeon_semaphore *semaphore,
 				  bool emit_wait)
@@ -141,6 +141,8 @@ void cik_sdma_semaphore_ring_emit(struct radeon_device *rdev,
 	radeon_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_SEMAPHORE, 0, extra_bits));
 	radeon_ring_write(ring, addr & 0xfffffff8);
 	radeon_ring_write(ring, upper_32_bits(addr) & 0xffffffff);
+
+	return true;
 }
 
 /**
@@ -443,13 +445,8 @@ int cik_copy_dma(struct radeon_device *rdev,
 		return r;
 	}
 
-	if (radeon_fence_need_sync(*fence, ring->idx)) {
-		radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
-					    ring->idx);
-		radeon_fence_note_sync(*fence, ring->idx);
-	} else {
-		radeon_semaphore_free(rdev, &sem, NULL);
-	}
+	radeon_semaphore_sync_to(sem, *fence);
+	radeon_semaphore_sync_rings(rdev, sem, ring->idx);
 
 	for (i = 0; i < num_loops; i++) {
 		cur_size_in_bytes = size_in_bytes;
diff --git a/drivers/gpu/drm/radeon/evergreen_dma.c b/drivers/gpu/drm/radeon/evergreen_dma.c
index 6a0656d00ed0..a37b54436382 100644
--- a/drivers/gpu/drm/radeon/evergreen_dma.c
+++ b/drivers/gpu/drm/radeon/evergreen_dma.c
@@ -131,13 +131,8 @@ int evergreen_copy_dma(struct radeon_device *rdev,
 		return r;
 	}
 
-	if (radeon_fence_need_sync(*fence, ring->idx)) {
-		radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
-					    ring->idx);
-		radeon_fence_note_sync(*fence, ring->idx);
-	} else {
-		radeon_semaphore_free(rdev, &sem, NULL);
-	}
+	radeon_semaphore_sync_to(sem, *fence);
+	radeon_semaphore_sync_rings(rdev, sem, ring->idx);
 
 	for (i = 0; i < num_loops; i++) {
 		cur_size_in_dw = size_in_dw;
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index 784983d78158..10abc4d5a6cc 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -869,13 +869,14 @@ void r100_fence_ring_emit(struct radeon_device *rdev,
 	radeon_ring_write(ring, RADEON_SW_INT_FIRE);
 }
 
-void r100_semaphore_ring_emit(struct radeon_device *rdev,
+bool r100_semaphore_ring_emit(struct radeon_device *rdev,
 			      struct radeon_ring *ring,
 			      struct radeon_semaphore *semaphore,
 			      bool emit_wait)
 {
 	/* Unused on older asics, since we don't have semaphores or multiple rings */
 	BUG();
+	return false;
 }
 
 int r100_copy_blit(struct radeon_device *rdev,
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 4e609e8a8d2b..9ad06732a78b 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -2650,7 +2650,7 @@ void r600_fence_ring_emit(struct radeon_device *rdev,
 	}
 }
 
-void r600_semaphore_ring_emit(struct radeon_device *rdev,
+bool r600_semaphore_ring_emit(struct radeon_device *rdev,
 			      struct radeon_ring *ring,
 			      struct radeon_semaphore *semaphore,
 			      bool emit_wait)
@@ -2664,6 +2664,8 @@ void r600_semaphore_ring_emit(struct radeon_device *rdev,
 	radeon_ring_write(ring, PACKET3(PACKET3_MEM_SEMAPHORE, 1));
 	radeon_ring_write(ring, addr & 0xffffffff);
 	radeon_ring_write(ring, (upper_32_bits(addr) & 0xff) | sel);
+
+	return true;
 }
 
 /**
@@ -2706,13 +2708,8 @@ int r600_copy_cpdma(struct radeon_device *rdev,
 		return r;
 	}
 
-	if (radeon_fence_need_sync(*fence, ring->idx)) {
-		radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
-					    ring->idx);
-		radeon_fence_note_sync(*fence, ring->idx);
-	} else {
-		radeon_semaphore_free(rdev, &sem, NULL);
-	}
+	radeon_semaphore_sync_to(sem, *fence);
+	radeon_semaphore_sync_rings(rdev, sem, ring->idx);
 
 	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
 	radeon_ring_write(ring, (WAIT_UNTIL - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
diff --git a/drivers/gpu/drm/radeon/r600_dma.c b/drivers/gpu/drm/radeon/r600_dma.c
index 3b317456512a..7844d15c139f 100644
--- a/drivers/gpu/drm/radeon/r600_dma.c
+++ b/drivers/gpu/drm/radeon/r600_dma.c
@@ -311,7 +311,7 @@ void r600_dma_fence_ring_emit(struct radeon_device *rdev,
  * Add a DMA semaphore packet to the ring wait on or signal
  * other rings (r6xx-SI).
  */
-void r600_dma_semaphore_ring_emit(struct radeon_device *rdev,
+bool r600_dma_semaphore_ring_emit(struct radeon_device *rdev,
 				  struct radeon_ring *ring,
 				  struct radeon_semaphore *semaphore,
 				  bool emit_wait)
@@ -322,6 +322,8 @@ void r600_dma_semaphore_ring_emit(struct radeon_device *rdev,
 	radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SEMAPHORE, 0, s, 0));
 	radeon_ring_write(ring, addr & 0xfffffffc);
 	radeon_ring_write(ring, upper_32_bits(addr) & 0xff);
+
+	return true;
 }
 
 /**
@@ -462,13 +464,8 @@ int r600_copy_dma(struct radeon_device *rdev,
 		return r;
 	}
 
-	if (radeon_fence_need_sync(*fence, ring->idx)) {
-		radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
-					    ring->idx);
-		radeon_fence_note_sync(*fence, ring->idx);
-	} else {
-		radeon_semaphore_free(rdev, &sem, NULL);
-	}
+	radeon_semaphore_sync_to(sem, *fence);
+	radeon_semaphore_sync_rings(rdev, sem, ring->idx);
 
 	for (i = 0; i < num_loops; i++) {
 		cur_size_in_dw = size_in_dw;
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index b9ee99258602..2fe2f6332d44 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -348,6 +348,7 @@ int radeon_fence_emit(struct radeon_device *rdev, struct radeon_fence **fence, i
 void radeon_fence_process(struct radeon_device *rdev, int ring);
 bool radeon_fence_signaled(struct radeon_fence *fence);
 int radeon_fence_wait(struct radeon_fence *fence, bool interruptible);
+int radeon_fence_wait_locked(struct radeon_fence *fence);
 int radeon_fence_wait_next_locked(struct radeon_device *rdev, int ring);
 int radeon_fence_wait_empty_locked(struct radeon_device *rdev, int ring);
 int radeon_fence_wait_any(struct radeon_device *rdev,
@@ -548,17 +549,20 @@ struct radeon_semaphore {
 	struct radeon_sa_bo		*sa_bo;
 	signed				waiters;
 	uint64_t			gpu_addr;
+	struct radeon_fence		*sync_to[RADEON_NUM_RINGS];
 };
 
 int radeon_semaphore_create(struct radeon_device *rdev,
 			    struct radeon_semaphore **semaphore);
-void radeon_semaphore_emit_signal(struct radeon_device *rdev, int ring,
+bool radeon_semaphore_emit_signal(struct radeon_device *rdev, int ring,
 				  struct radeon_semaphore *semaphore);
-void radeon_semaphore_emit_wait(struct radeon_device *rdev, int ring,
+bool radeon_semaphore_emit_wait(struct radeon_device *rdev, int ring,
 				struct radeon_semaphore *semaphore);
+void radeon_semaphore_sync_to(struct radeon_semaphore *semaphore,
+			      struct radeon_fence *fence);
 int radeon_semaphore_sync_rings(struct radeon_device *rdev,
 				struct radeon_semaphore *semaphore,
-				int signaler, int waiter);
+				int waiting_ring);
 void radeon_semaphore_free(struct radeon_device *rdev,
 			   struct radeon_semaphore **semaphore,
 			   struct radeon_fence *fence);
@@ -765,7 +769,6 @@ struct radeon_ib {
 	struct radeon_fence		*fence;
 	struct radeon_vm		*vm;
 	bool				is_const_ib;
-	struct radeon_fence		*sync_to[RADEON_NUM_RINGS];
 	struct radeon_semaphore		*semaphore;
 };
 
@@ -921,7 +924,6 @@ int radeon_ib_get(struct radeon_device *rdev, int ring,
 		  struct radeon_ib *ib, struct radeon_vm *vm,
 		  unsigned size);
 void radeon_ib_free(struct radeon_device *rdev, struct radeon_ib *ib);
-void radeon_ib_sync_to(struct radeon_ib *ib, struct radeon_fence *fence);
 int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib,
 		       struct radeon_ib *const_ib);
 int radeon_ib_pool_init(struct radeon_device *rdev);
@@ -1638,7 +1640,7 @@ struct radeon_asic_ring {
 	/* command emmit functions */
 	void (*ib_execute)(struct radeon_device *rdev, struct radeon_ib *ib);
 	void (*emit_fence)(struct radeon_device *rdev, struct radeon_fence *fence);
-	void (*emit_semaphore)(struct radeon_device *rdev, struct radeon_ring *cp,
+	bool (*emit_semaphore)(struct radeon_device *rdev, struct radeon_ring *cp,
 			       struct radeon_semaphore *semaphore, bool emit_wait);
 	void (*vm_flush)(struct radeon_device *rdev, int ridx, struct radeon_vm *vm);
 
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index f2833ee3a613..c9fd97b58076 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -80,7 +80,7 @@ int r100_irq_set(struct radeon_device *rdev);
 int r100_irq_process(struct radeon_device *rdev);
 void r100_fence_ring_emit(struct radeon_device *rdev,
 			  struct radeon_fence *fence);
-void r100_semaphore_ring_emit(struct radeon_device *rdev,
+bool r100_semaphore_ring_emit(struct radeon_device *rdev,
 			      struct radeon_ring *cp,
 			      struct radeon_semaphore *semaphore,
 			      bool emit_wait);
@@ -313,13 +313,13 @@ int r600_cs_parse(struct radeon_cs_parser *p);
 int r600_dma_cs_parse(struct radeon_cs_parser *p);
 void r600_fence_ring_emit(struct radeon_device *rdev,
 			  struct radeon_fence *fence);
-void r600_semaphore_ring_emit(struct radeon_device *rdev,
+bool r600_semaphore_ring_emit(struct radeon_device *rdev,
 			      struct radeon_ring *cp,
 			      struct radeon_semaphore *semaphore,
 			      bool emit_wait);
 void r600_dma_fence_ring_emit(struct radeon_device *rdev,
 			      struct radeon_fence *fence);
-void r600_dma_semaphore_ring_emit(struct radeon_device *rdev,
+bool r600_dma_semaphore_ring_emit(struct radeon_device *rdev,
 				  struct radeon_ring *ring,
 				  struct radeon_semaphore *semaphore,
 				  bool emit_wait);
@@ -566,10 +566,6 @@ int sumo_dpm_force_performance_level(struct radeon_device *rdev,
  */
 void cayman_fence_ring_emit(struct radeon_device *rdev,
 			    struct radeon_fence *fence);
-void cayman_uvd_semaphore_emit(struct radeon_device *rdev,
-			       struct radeon_ring *ring,
-			       struct radeon_semaphore *semaphore,
-			       bool emit_wait);
 void cayman_pcie_gart_tlb_flush(struct radeon_device *rdev);
 int cayman_init(struct radeon_device *rdev);
 void cayman_fini(struct radeon_device *rdev);
@@ -697,7 +693,7 @@ void cik_pciep_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v);
 int cik_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk);
 void cik_sdma_fence_ring_emit(struct radeon_device *rdev,
 			      struct radeon_fence *fence);
-void cik_sdma_semaphore_ring_emit(struct radeon_device *rdev,
+bool cik_sdma_semaphore_ring_emit(struct radeon_device *rdev,
 				  struct radeon_ring *ring,
 				  struct radeon_semaphore *semaphore,
 				  bool emit_wait);
@@ -717,7 +713,7 @@ void cik_fence_gfx_ring_emit(struct radeon_device *rdev,
 			     struct radeon_fence *fence);
 void cik_fence_compute_ring_emit(struct radeon_device *rdev,
 				 struct radeon_fence *fence);
-void cik_semaphore_ring_emit(struct radeon_device *rdev,
+bool cik_semaphore_ring_emit(struct radeon_device *rdev,
 			     struct radeon_ring *cp,
 			     struct radeon_semaphore *semaphore,
 			     bool emit_wait);
@@ -807,7 +803,7 @@ void uvd_v1_0_stop(struct radeon_device *rdev);
 
 int uvd_v1_0_ring_test(struct radeon_device *rdev, struct radeon_ring *ring);
 int uvd_v1_0_ib_test(struct radeon_device *rdev, struct radeon_ring *ring);
-void uvd_v1_0_semaphore_emit(struct radeon_device *rdev,
+bool uvd_v1_0_semaphore_emit(struct radeon_device *rdev,
 			     struct radeon_ring *ring,
 			     struct radeon_semaphore *semaphore,
 			     bool emit_wait);
@@ -819,7 +815,7 @@ void uvd_v2_2_fence_emit(struct radeon_device *rdev,
 			 struct radeon_fence *fence);
 
 /* uvd v3.1 */
-void uvd_v3_1_semaphore_emit(struct radeon_device *rdev,
+bool uvd_v3_1_semaphore_emit(struct radeon_device *rdev,
 			     struct radeon_ring *ring,
 			     struct radeon_semaphore *semaphore,
 			     bool emit_wait);
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index 26ca223d12d6..f41594b2eeac 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -159,7 +159,8 @@ static void radeon_cs_sync_rings(struct radeon_cs_parser *p)
 		if (!p->relocs[i].robj)
 			continue;
 
-		radeon_ib_sync_to(&p->ib, p->relocs[i].robj->tbo.sync_obj);
+		radeon_semaphore_sync_to(p->ib.semaphore,
+					 p->relocs[i].robj->tbo.sync_obj);
 	}
 }
 
@@ -411,9 +412,9 @@ static int radeon_cs_ib_vm_chunk(struct radeon_device *rdev,
 		goto out;
 	}
 	radeon_cs_sync_rings(parser);
-	radeon_ib_sync_to(&parser->ib, vm->fence);
-	radeon_ib_sync_to(&parser->ib, radeon_vm_grab_id(
-		rdev, vm, parser->ring));
+	radeon_semaphore_sync_to(parser->ib.semaphore, vm->fence);
+	radeon_semaphore_sync_to(parser->ib.semaphore,
+				 radeon_vm_grab_id(rdev, vm, parser->ring));
 
 	if ((rdev->family >= CHIP_TAHITI) &&
 	    (parser->chunk_const_ib_idx != -1)) {
diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c
index 281d14c22a47..d3a86e43c012 100644
--- a/drivers/gpu/drm/radeon/radeon_fence.c
+++ b/drivers/gpu/drm/radeon/radeon_fence.c
@@ -471,6 +471,36 @@ int radeon_fence_wait_any(struct radeon_device *rdev,
 	return 0;
 }
 
+/**
+ * radeon_fence_wait_locked - wait for a fence to signal
+ *
+ * @fence: radeon fence object
+ *
+ * Wait for the requested fence to signal (all asics).
+ * Returns 0 if the fence has passed, error for all other cases.
+ */
+int radeon_fence_wait_locked(struct radeon_fence *fence)
+{
+	uint64_t seq[RADEON_NUM_RINGS] = {};
+	int r;
+
+	if (fence == NULL) {
+		WARN(1, "Querying an invalid fence : %p !\n", fence);
+		return -EINVAL;
+	}
+
+	seq[fence->ring] = fence->seq;
+	if (seq[fence->ring] == RADEON_FENCE_SIGNALED_SEQ)
+		return 0;
+
+	r = radeon_fence_wait_seq(fence->rdev, seq, false, false);
+	if (r)
+		return r;
+
+	fence->seq = RADEON_FENCE_SIGNALED_SEQ;
+	return 0;
+}
+
 /**
  * radeon_fence_wait_next_locked - wait for the next fence to signal
  *
diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c
index 8a83b89d4709..cd7489b4d709 100644
--- a/drivers/gpu/drm/radeon/radeon_gart.c
+++ b/drivers/gpu/drm/radeon/radeon_gart.c
@@ -651,7 +651,7 @@ retry:
 	radeon_asic_vm_set_page(rdev, &ib, vm->pd_gpu_addr,
 				0, pd_entries, 0, 0);
 
-	radeon_ib_sync_to(&ib, vm->fence);
+	radeon_semaphore_sync_to(ib.semaphore, vm->fence);
 	r = radeon_ib_schedule(rdev, &ib, NULL);
 	if (r) {
 		radeon_ib_free(rdev, &ib);
@@ -1220,7 +1220,7 @@ int radeon_vm_bo_update_pte(struct radeon_device *rdev,
 	radeon_vm_update_ptes(rdev, vm, &ib, bo_va->soffset, bo_va->eoffset,
 			      addr, radeon_vm_page_flags(bo_va->flags));
 
-	radeon_ib_sync_to(&ib, vm->fence);
+	radeon_semaphore_sync_to(ib.semaphore, vm->fence);
 	r = radeon_ib_schedule(rdev, &ib, NULL);
 	if (r) {
 		radeon_ib_free(rdev, &ib);
diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c
index 18254e1c3e71..9214403ae173 100644
--- a/drivers/gpu/drm/radeon/radeon_ring.c
+++ b/drivers/gpu/drm/radeon/radeon_ring.c
@@ -61,7 +61,7 @@ int radeon_ib_get(struct radeon_device *rdev, int ring,
 		  struct radeon_ib *ib, struct radeon_vm *vm,
 		  unsigned size)
 {
-	int i, r;
+	int r;
 
 	r = radeon_sa_bo_new(rdev, &rdev->ring_tmp_bo, &ib->sa_bo, size, 256, true);
 	if (r) {
@@ -87,8 +87,6 @@ int radeon_ib_get(struct radeon_device *rdev, int ring,
 		ib->gpu_addr = radeon_sa_bo_gpu_addr(ib->sa_bo);
 	}
 	ib->is_const_ib = false;
-	for (i = 0; i < RADEON_NUM_RINGS; ++i)
-		ib->sync_to[i] = NULL;
 
 	return 0;
 }
@@ -108,25 +106,6 @@ void radeon_ib_free(struct radeon_device *rdev, struct radeon_ib *ib)
 	radeon_fence_unref(&ib->fence);
 }
 
-/**
- * radeon_ib_sync_to - sync to fence before executing the IB
- *
- * @ib: IB object to add fence to
- * @fence: fence to sync to
- *
- * Sync to the fence before executing the IB
- */
-void radeon_ib_sync_to(struct radeon_ib *ib, struct radeon_fence *fence)
-{
-	struct radeon_fence *other;
-
-	if (!fence)
-		return;
-
-	other = ib->sync_to[fence->ring];
-	ib->sync_to[fence->ring] = radeon_fence_later(fence, other);
-}
-
 /**
  * radeon_ib_schedule - schedule an IB (Indirect Buffer) on the ring
  *
@@ -151,8 +130,7 @@ int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib,
 		       struct radeon_ib *const_ib)
 {
 	struct radeon_ring *ring = &rdev->ring[ib->ring];
-	bool need_sync = false;
-	int i, r = 0;
+	int r = 0;
 
 	if (!ib->length_dw || !ring->ready) {
 		/* TODO: Nothings in the ib we should report. */
@@ -166,19 +144,15 @@ int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib,
 		dev_err(rdev->dev, "scheduling IB failed (%d).\n", r);
 		return r;
 	}
-	for (i = 0; i < RADEON_NUM_RINGS; ++i) {
-		struct radeon_fence *fence = ib->sync_to[i];
-		if (radeon_fence_need_sync(fence, ib->ring)) {
-			need_sync = true;
-			radeon_semaphore_sync_rings(rdev, ib->semaphore,
-						    fence->ring, ib->ring);
-			radeon_fence_note_sync(fence, ib->ring);
-		}
-	}
-	/* immediately free semaphore when we don't need to sync */
-	if (!need_sync) {
-		radeon_semaphore_free(rdev, &ib->semaphore, NULL);
+
+	/* sync with other rings */
+	r = radeon_semaphore_sync_rings(rdev, ib->semaphore, ib->ring);
+	if (r) {
+		dev_err(rdev->dev, "failed to sync rings (%d)\n", r);
+		radeon_ring_unlock_undo(rdev, ring);
+		return r;
 	}
+
 	/* if we can't remember our last VM flush then flush now! */
 	/* XXX figure out why we have to flush for every IB */
 	if (ib->vm /*&& !ib->vm->last_flush*/) {
diff --git a/drivers/gpu/drm/radeon/radeon_semaphore.c b/drivers/gpu/drm/radeon/radeon_semaphore.c
index 97d73bfc8782..2b42aa1914f2 100644
--- a/drivers/gpu/drm/radeon/radeon_semaphore.c
+++ b/drivers/gpu/drm/radeon/radeon_semaphore.c
@@ -34,7 +34,7 @@
 int radeon_semaphore_create(struct radeon_device *rdev,
 			    struct radeon_semaphore **semaphore)
 {
-	int r;
+	int i, r;
 
 	*semaphore = kmalloc(sizeof(struct radeon_semaphore), GFP_KERNEL);
 	if (*semaphore == NULL) {
@@ -50,58 +50,121 @@ int radeon_semaphore_create(struct radeon_device *rdev,
 	(*semaphore)->waiters = 0;
 	(*semaphore)->gpu_addr = radeon_sa_bo_gpu_addr((*semaphore)->sa_bo);
 	*((uint64_t*)radeon_sa_bo_cpu_addr((*semaphore)->sa_bo)) = 0;
+
+	for (i = 0; i < RADEON_NUM_RINGS; ++i)
+		(*semaphore)->sync_to[i] = NULL;
+
 	return 0;
 }
 
-void radeon_semaphore_emit_signal(struct radeon_device *rdev, int ring,
+bool radeon_semaphore_emit_signal(struct radeon_device *rdev, int ridx,
 			          struct radeon_semaphore *semaphore)
 {
-	trace_radeon_semaphore_signale(ring, semaphore);
+	struct radeon_ring *ring = &rdev->ring[ridx];
+
+	trace_radeon_semaphore_signale(ridx, semaphore);
+
+	if (radeon_semaphore_ring_emit(rdev, ridx, ring, semaphore, false)) {
+		--semaphore->waiters;
 
-	--semaphore->waiters;
-	radeon_semaphore_ring_emit(rdev, ring, &rdev->ring[ring], semaphore, false);
+		/* for debugging lockup only, used by sysfs debug files */
+		ring->last_semaphore_signal_addr = semaphore->gpu_addr;
+		return true;
+	}
+	return false;
 }
 
-void radeon_semaphore_emit_wait(struct radeon_device *rdev, int ring,
+bool radeon_semaphore_emit_wait(struct radeon_device *rdev, int ridx,
 			        struct radeon_semaphore *semaphore)
 {
-	trace_radeon_semaphore_wait(ring, semaphore);
+	struct radeon_ring *ring = &rdev->ring[ridx];
+
+	trace_radeon_semaphore_wait(ridx, semaphore);
+
+	if (radeon_semaphore_ring_emit(rdev, ridx, ring, semaphore, true)) {
+		++semaphore->waiters;
 
-	++semaphore->waiters;
-	radeon_semaphore_ring_emit(rdev, ring, &rdev->ring[ring], semaphore, true);
+		/* for debugging lockup only, used by sysfs debug files */
+		ring->last_semaphore_wait_addr = semaphore->gpu_addr;
+		return true;
+	}
+	return false;
 }
 
-/* caller must hold ring lock */
+/**
+ * radeon_semaphore_sync_to - use the semaphore to sync to a fence
+ *
+ * @semaphore: semaphore object to add fence to
+ * @fence: fence to sync to
+ *
+ * Sync to the fence using this semaphore object
+ */
+void radeon_semaphore_sync_to(struct radeon_semaphore *semaphore,
+			      struct radeon_fence *fence)
+{
+        struct radeon_fence *other;
+
+        if (!fence)
+                return;
+
+        other = semaphore->sync_to[fence->ring];
+        semaphore->sync_to[fence->ring] = radeon_fence_later(fence, other);
+}
+
+/**
+ * radeon_semaphore_sync_rings - sync ring to all registered fences
+ *
+ * @rdev: radeon_device pointer
+ * @semaphore: semaphore object to use for sync
+ * @ring: ring that needs sync
+ *
+ * Ensure that all registered fences are signaled before letting
+ * the ring continue. The caller must hold the ring lock.
+ */
 int radeon_semaphore_sync_rings(struct radeon_device *rdev,
 				struct radeon_semaphore *semaphore,
-				int signaler, int waiter)
+				int ring)
 {
-	int r;
+	int i, r;
 
-	/* no need to signal and wait on the same ring */
-	if (signaler == waiter) {
-		return 0;
-	}
+        for (i = 0; i < RADEON_NUM_RINGS; ++i) {
+		struct radeon_fence *fence = semaphore->sync_to[i];
 
-	/* prevent GPU deadlocks */
-	if (!rdev->ring[signaler].ready) {
-		dev_err(rdev->dev, "Trying to sync to a disabled ring!");
-		return -EINVAL;
-	}
+		/* check if we really need to sync */
+                if (!radeon_fence_need_sync(fence, ring))
+			continue;
 
-	r = radeon_ring_alloc(rdev, &rdev->ring[signaler], 8);
-	if (r) {
-		return r;
-	}
-	radeon_semaphore_emit_signal(rdev, signaler, semaphore);
-	radeon_ring_commit(rdev, &rdev->ring[signaler]);
+		/* prevent GPU deadlocks */
+		if (!rdev->ring[i].ready) {
+			dev_err(rdev->dev, "Syncing to a disabled ring!");
+			return -EINVAL;
+		}
 
-	/* we assume caller has already allocated space on waiters ring */
-	radeon_semaphore_emit_wait(rdev, waiter, semaphore);
+		/* allocate enough space for sync command */
+		r = radeon_ring_alloc(rdev, &rdev->ring[i], 16);
+		if (r) {
+			return r;
+		}
 
-	/* for debugging lockup only, used by sysfs debug files */
-	rdev->ring[signaler].last_semaphore_signal_addr = semaphore->gpu_addr;
-	rdev->ring[waiter].last_semaphore_wait_addr = semaphore->gpu_addr;
+		/* emit the signal semaphore */
+		if (!radeon_semaphore_emit_signal(rdev, i, semaphore)) {
+			/* signaling wasn't successful wait manually */
+			radeon_ring_undo(&rdev->ring[i]);
+			radeon_fence_wait_locked(fence);
+			continue;
+		}
+
+		/* we assume caller has already allocated space on waiters ring */
+		if (!radeon_semaphore_emit_wait(rdev, ring, semaphore)) {
+			/* waiting wasn't successful wait manually */
+			radeon_ring_undo(&rdev->ring[i]);
+			radeon_fence_wait_locked(fence);
+			continue;
+		}
+
+		radeon_ring_commit(rdev, &rdev->ring[i]);
+		radeon_fence_note_sync(fence, ring);
+	}
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/radeon/rv770_dma.c b/drivers/gpu/drm/radeon/rv770_dma.c
index f9b02e3d6830..aca8cbe8a335 100644
--- a/drivers/gpu/drm/radeon/rv770_dma.c
+++ b/drivers/gpu/drm/radeon/rv770_dma.c
@@ -66,13 +66,8 @@ int rv770_copy_dma(struct radeon_device *rdev,
 		return r;
 	}
 
-	if (radeon_fence_need_sync(*fence, ring->idx)) {
-		radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
-					    ring->idx);
-		radeon_fence_note_sync(*fence, ring->idx);
-	} else {
-		radeon_semaphore_free(rdev, &sem, NULL);
-	}
+	radeon_semaphore_sync_to(sem, *fence);
+	radeon_semaphore_sync_rings(rdev, sem, ring->idx);
 
 	for (i = 0; i < num_loops; i++) {
 		cur_size_in_dw = size_in_dw;
diff --git a/drivers/gpu/drm/radeon/si_dma.c b/drivers/gpu/drm/radeon/si_dma.c
index 8e8f46133532..59be2cfcbb47 100644
--- a/drivers/gpu/drm/radeon/si_dma.c
+++ b/drivers/gpu/drm/radeon/si_dma.c
@@ -195,13 +195,8 @@ int si_copy_dma(struct radeon_device *rdev,
 		return r;
 	}
 
-	if (radeon_fence_need_sync(*fence, ring->idx)) {
-		radeon_semaphore_sync_rings(rdev, sem, (*fence)->ring,
-					    ring->idx);
-		radeon_fence_note_sync(*fence, ring->idx);
-	} else {
-		radeon_semaphore_free(rdev, &sem, NULL);
-	}
+	radeon_semaphore_sync_to(sem, *fence);
+	radeon_semaphore_sync_rings(rdev, sem, ring->idx);
 
 	for (i = 0; i < num_loops; i++) {
 		cur_size_in_bytes = size_in_bytes;
diff --git a/drivers/gpu/drm/radeon/uvd_v1_0.c b/drivers/gpu/drm/radeon/uvd_v1_0.c
index 7266805d9786..d4a68af1a279 100644
--- a/drivers/gpu/drm/radeon/uvd_v1_0.c
+++ b/drivers/gpu/drm/radeon/uvd_v1_0.c
@@ -357,7 +357,7 @@ int uvd_v1_0_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
  *
  * Emit a semaphore command (either wait or signal) to the UVD ring.
  */
-void uvd_v1_0_semaphore_emit(struct radeon_device *rdev,
+bool uvd_v1_0_semaphore_emit(struct radeon_device *rdev,
 			     struct radeon_ring *ring,
 			     struct radeon_semaphore *semaphore,
 			     bool emit_wait)
@@ -372,6 +372,8 @@ void uvd_v1_0_semaphore_emit(struct radeon_device *rdev,
 
 	radeon_ring_write(ring, PACKET0(UVD_SEMA_CMD, 0));
 	radeon_ring_write(ring, emit_wait ? 1 : 0);
+
+	return true;
 }
 
 /**
diff --git a/drivers/gpu/drm/radeon/uvd_v3_1.c b/drivers/gpu/drm/radeon/uvd_v3_1.c
index 5b6fa1f62d4e..d722db2cf340 100644
--- a/drivers/gpu/drm/radeon/uvd_v3_1.c
+++ b/drivers/gpu/drm/radeon/uvd_v3_1.c
@@ -37,7 +37,7 @@
  *
  * Emit a semaphore command (either wait or signal) to the UVD ring.
  */
-void uvd_v3_1_semaphore_emit(struct radeon_device *rdev,
+bool uvd_v3_1_semaphore_emit(struct radeon_device *rdev,
 			     struct radeon_ring *ring,
 			     struct radeon_semaphore *semaphore,
 			     bool emit_wait)
@@ -52,4 +52,6 @@ void uvd_v3_1_semaphore_emit(struct radeon_device *rdev,
 
 	radeon_ring_write(ring, PACKET0(UVD_SEMA_CMD, 0));
 	radeon_ring_write(ring, 0x80 | (emit_wait ? 1 : 0));
+
+	return true;
 }
-- 
cgit 


From 99b4f25122f43210278cde17a9d100906235a074 Mon Sep 17 00:00:00 2001
From: Christian König <christian.koenig@amd.com>
Date: Tue, 12 Nov 2013 12:58:06 +0100
Subject: drm/radeon: disable CIK CP semaphores for now
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
 drivers/gpu/drm/radeon/cik.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index 811fc1b5b4b9..c1698978a8f1 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -3561,6 +3561,8 @@ bool cik_semaphore_ring_emit(struct radeon_device *rdev,
 			     struct radeon_semaphore *semaphore,
 			     bool emit_wait)
 {
+/* TODO: figure out why semaphore cause lockups */
+#if 0
 	uint64_t addr = semaphore->gpu_addr;
 	unsigned sel = emit_wait ? PACKET3_SEM_SEL_WAIT : PACKET3_SEM_SEL_SIGNAL;
 
@@ -3569,6 +3571,9 @@ bool cik_semaphore_ring_emit(struct radeon_device *rdev,
 	radeon_ring_write(ring, (upper_32_bits(addr) & 0xffff) | sel);
 
 	return true;
+#else
+	return false;
+#endif
 }
 
 /**
-- 
cgit 


From 4cc948b94a222c310ae089c36718aac7a03aec90 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Wed, 13 Nov 2013 15:25:35 -0500
Subject: drm/radeon/vm: don't attempt to update ptes if ib allocation fails
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

If we fail to allocate an indirect buffer (ib) when updating
the ptes, return an error instead of trying to use the ib.
Avoids a null pointer dereference.

Bug:
https://bugzilla.kernel.org/show_bug.cgi?id=58621

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
 drivers/gpu/drm/radeon/radeon_gart.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c
index cd7489b4d709..3044e504f4ec 100644
--- a/drivers/gpu/drm/radeon/radeon_gart.c
+++ b/drivers/gpu/drm/radeon/radeon_gart.c
@@ -1209,6 +1209,8 @@ int radeon_vm_bo_update_pte(struct radeon_device *rdev,
 		return -ENOMEM;
 
 	r = radeon_ib_get(rdev, R600_RING_TYPE_DMA_INDEX, &ib, NULL, ndw * 4);
+	if (r)
+		return r;
 	ib.length_dw = 0;
 
 	r = radeon_vm_update_pdes(rdev, vm, &ib, bo_va->soffset, bo_va->eoffset);
-- 
cgit 


From d5754ab8f9b0f36ab3d6825a3555db48f28145d4 Mon Sep 17 00:00:00 2001
From: Andrew Lewycky <Andrew.Lewycky@amd.com>
Date: Wed, 13 Nov 2013 15:54:17 -0500
Subject: drm/radeon: use a single doorbell for cik kms compute

A single doorbell page is plenty for cik kms compute.
Use a single page and manage doorbell allocation by
individual doorbells rather than pages.  Identify
doorbells by their index rather than byte offset.

Signed-off-by: Andrew Lewycky <Andrew.Lewycky@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/radeon/cik.c           | 36 ++++++++++++--------------
 drivers/gpu/drm/radeon/radeon.h        | 23 +++++++++--------
 drivers/gpu/drm/radeon/radeon_device.c | 47 +++++++++++++++-------------------
 3 files changed, 48 insertions(+), 58 deletions(-)

diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index c1698978a8f1..08aa58ef8d0a 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -1560,17 +1560,17 @@ u32 cik_get_xclk(struct radeon_device *rdev)
  * cik_mm_rdoorbell - read a doorbell dword
  *
  * @rdev: radeon_device pointer
- * @offset: byte offset into the aperture
+ * @index: doorbell index
  *
  * Returns the value in the doorbell aperture at the
- * requested offset (CIK).
+ * requested doorbell index (CIK).
  */
-u32 cik_mm_rdoorbell(struct radeon_device *rdev, u32 offset)
+u32 cik_mm_rdoorbell(struct radeon_device *rdev, u32 index)
 {
-	if (offset < rdev->doorbell.size) {
-		return readl(((void __iomem *)rdev->doorbell.ptr) + offset);
+	if (index < rdev->doorbell.num_doorbells) {
+		return readl(rdev->doorbell.ptr + index);
 	} else {
-		DRM_ERROR("reading beyond doorbell aperture: 0x%08x!\n", offset);
+		DRM_ERROR("reading beyond doorbell aperture: 0x%08x!\n", index);
 		return 0;
 	}
 }
@@ -1579,18 +1579,18 @@ u32 cik_mm_rdoorbell(struct radeon_device *rdev, u32 offset)
  * cik_mm_wdoorbell - write a doorbell dword
  *
  * @rdev: radeon_device pointer
- * @offset: byte offset into the aperture
+ * @index: doorbell index
  * @v: value to write
  *
  * Writes @v to the doorbell aperture at the
- * requested offset (CIK).
+ * requested doorbell index (CIK).
  */
-void cik_mm_wdoorbell(struct radeon_device *rdev, u32 offset, u32 v)
+void cik_mm_wdoorbell(struct radeon_device *rdev, u32 index, u32 v)
 {
-	if (offset < rdev->doorbell.size) {
-		writel(v, ((void __iomem *)rdev->doorbell.ptr) + offset);
+	if (index < rdev->doorbell.num_doorbells) {
+		writel(v, rdev->doorbell.ptr + index);
 	} else {
-		DRM_ERROR("writing beyond doorbell aperture: 0x%08x!\n", offset);
+		DRM_ERROR("writing beyond doorbell aperture: 0x%08x!\n", index);
 	}
 }
 
@@ -4054,7 +4054,7 @@ void cik_compute_ring_set_wptr(struct radeon_device *rdev,
 			       struct radeon_ring *ring)
 {
 	rdev->wb.wb[ring->wptr_offs/4] = cpu_to_le32(ring->wptr);
-	WDOORBELL32(ring->doorbell_offset, ring->wptr);
+	WDOORBELL32(ring->doorbell_index, ring->wptr);
 }
 
 /**
@@ -4395,10 +4395,6 @@ static int cik_cp_compute_resume(struct radeon_device *rdev)
 			return r;
 		}
 
-		/* doorbell offset */
-		rdev->ring[idx].doorbell_offset =
-			(rdev->ring[idx].doorbell_page_num * PAGE_SIZE) + 0;
-
 		/* init the mqd struct */
 		memset(buf, 0, sizeof(struct bonaire_mqd));
 
@@ -4510,7 +4506,7 @@ static int cik_cp_compute_resume(struct radeon_device *rdev)
 				RREG32(CP_HQD_PQ_DOORBELL_CONTROL);
 			mqd->queue_state.cp_hqd_pq_doorbell_control &= ~DOORBELL_OFFSET_MASK;
 			mqd->queue_state.cp_hqd_pq_doorbell_control |=
-				DOORBELL_OFFSET(rdev->ring[idx].doorbell_offset / 4);
+				DOORBELL_OFFSET(rdev->ring[idx].doorbell_index);
 			mqd->queue_state.cp_hqd_pq_doorbell_control |= DOORBELL_EN;
 			mqd->queue_state.cp_hqd_pq_doorbell_control &=
 				~(DOORBELL_SOURCE | DOORBELL_HIT);
@@ -7841,14 +7837,14 @@ int cik_init(struct radeon_device *rdev)
 	ring = &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX];
 	ring->ring_obj = NULL;
 	r600_ring_init(rdev, ring, 1024 * 1024);
-	r = radeon_doorbell_get(rdev, &ring->doorbell_page_num);
+	r = radeon_doorbell_get(rdev, &ring->doorbell_index);
 	if (r)
 		return r;
 
 	ring = &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX];
 	ring->ring_obj = NULL;
 	r600_ring_init(rdev, ring, 1024 * 1024);
-	r = radeon_doorbell_get(rdev, &ring->doorbell_page_num);
+	r = radeon_doorbell_get(rdev, &ring->doorbell_index);
 	if (r)
 		return r;
 
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 2fe2f6332d44..4970ac0ebc80 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -649,13 +649,15 @@ void radeon_scratch_free(struct radeon_device *rdev, uint32_t reg);
 /*
  * GPU doorbell structures, functions & helpers
  */
+#define RADEON_MAX_DOORBELLS 1024	/* Reserve at most 1024 doorbell slots for radeon-owned rings. */
+
 struct radeon_doorbell {
-	u32			num_pages;
-	bool			free[1024];
 	/* doorbell mmio */
-	resource_size_t			base;
-	resource_size_t			size;
-	void __iomem			*ptr;
+	resource_size_t		base;
+	resource_size_t		size;
+	u32 __iomem		*ptr;
+	u32			num_doorbells;	/* Number of doorbells actually reserved for radeon. */
+	unsigned long		used[DIV_ROUND_UP(RADEON_MAX_DOORBELLS, BITS_PER_LONG)];
 };
 
 int radeon_doorbell_get(struct radeon_device *rdev, u32 *page);
@@ -802,8 +804,7 @@ struct radeon_ring {
 	u32 pipe;
 	u32 queue;
 	struct radeon_bo	*mqd_obj;
-	u32 doorbell_page_num;
-	u32 doorbell_offset;
+	u32 doorbell_index;
 	unsigned		wptr_offs;
 };
 
@@ -2241,8 +2242,8 @@ void r100_mm_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v,
 u32 r100_io_rreg(struct radeon_device *rdev, u32 reg);
 void r100_io_wreg(struct radeon_device *rdev, u32 reg, u32 v);
 
-u32 cik_mm_rdoorbell(struct radeon_device *rdev, u32 offset);
-void cik_mm_wdoorbell(struct radeon_device *rdev, u32 offset, u32 v);
+u32 cik_mm_rdoorbell(struct radeon_device *rdev, u32 index);
+void cik_mm_wdoorbell(struct radeon_device *rdev, u32 index, u32 v);
 
 /*
  * Cast helper
@@ -2305,8 +2306,8 @@ void cik_mm_wdoorbell(struct radeon_device *rdev, u32 offset, u32 v);
 #define RREG32_IO(reg) r100_io_rreg(rdev, (reg))
 #define WREG32_IO(reg, v) r100_io_wreg(rdev, (reg), (v))
 
-#define RDOORBELL32(offset) cik_mm_rdoorbell(rdev, (offset))
-#define WDOORBELL32(offset, v) cik_mm_wdoorbell(rdev, (offset), (v))
+#define RDOORBELL32(index) cik_mm_rdoorbell(rdev, (index))
+#define WDOORBELL32(index, v) cik_mm_wdoorbell(rdev, (index), (v))
 
 /*
  * Indirect registers accessor
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index b9234c43f43d..39b033b441d2 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -251,28 +251,23 @@ void radeon_scratch_free(struct radeon_device *rdev, uint32_t reg)
  */
 int radeon_doorbell_init(struct radeon_device *rdev)
 {
-	int i;
-
 	/* doorbell bar mapping */
 	rdev->doorbell.base = pci_resource_start(rdev->pdev, 2);
 	rdev->doorbell.size = pci_resource_len(rdev->pdev, 2);
 
-	/* limit to 4 MB for now */
-	if (rdev->doorbell.size > (4 * 1024 * 1024))
-		rdev->doorbell.size = 4 * 1024 * 1024;
+	rdev->doorbell.num_doorbells = min_t(u32, rdev->doorbell.size / sizeof(u32), RADEON_MAX_DOORBELLS);
+	if (rdev->doorbell.num_doorbells == 0)
+		return -EINVAL;
 
-	rdev->doorbell.ptr = ioremap(rdev->doorbell.base, rdev->doorbell.size);
+	rdev->doorbell.ptr = ioremap(rdev->doorbell.base, rdev->doorbell.num_doorbells * sizeof(u32));
 	if (rdev->doorbell.ptr == NULL) {
 		return -ENOMEM;
 	}
 	DRM_INFO("doorbell mmio base: 0x%08X\n", (uint32_t)rdev->doorbell.base);
 	DRM_INFO("doorbell mmio size: %u\n", (unsigned)rdev->doorbell.size);
 
-	rdev->doorbell.num_pages = rdev->doorbell.size / PAGE_SIZE;
+	memset(&rdev->doorbell.used, 0, sizeof(rdev->doorbell.used));
 
-	for (i = 0; i < rdev->doorbell.num_pages; i++) {
-		rdev->doorbell.free[i] = true;
-	}
 	return 0;
 }
 
@@ -290,40 +285,38 @@ void radeon_doorbell_fini(struct radeon_device *rdev)
 }
 
 /**
- * radeon_doorbell_get - Allocate a doorbell page
+ * radeon_doorbell_get - Allocate a doorbell entry
  *
  * @rdev: radeon_device pointer
- * @doorbell: doorbell page number
+ * @doorbell: doorbell index
  *
- * Allocate a doorbell page for use by the driver (all asics).
+ * Allocate a doorbell for use by the driver (all asics).
  * Returns 0 on success or -EINVAL on failure.
  */
 int radeon_doorbell_get(struct radeon_device *rdev, u32 *doorbell)
 {
-	int i;
-
-	for (i = 0; i < rdev->doorbell.num_pages; i++) {
-		if (rdev->doorbell.free[i]) {
-			rdev->doorbell.free[i] = false;
-			*doorbell = i;
-			return 0;
-		}
+	unsigned long offset = find_first_zero_bit(rdev->doorbell.used, rdev->doorbell.num_doorbells);
+	if (offset < rdev->doorbell.num_doorbells) {
+		__set_bit(offset, rdev->doorbell.used);
+		*doorbell = offset;
+		return 0;
+	} else {
+		return -EINVAL;
 	}
-	return -EINVAL;
 }
 
 /**
- * radeon_doorbell_free - Free a doorbell page
+ * radeon_doorbell_free - Free a doorbell entry
  *
  * @rdev: radeon_device pointer
- * @doorbell: doorbell page number
+ * @doorbell: doorbell index
  *
- * Free a doorbell page allocated for use by the driver (all asics)
+ * Free a doorbell allocated for use by the driver (all asics)
  */
 void radeon_doorbell_free(struct radeon_device *rdev, u32 doorbell)
 {
-	if (doorbell < rdev->doorbell.num_pages)
-		rdev->doorbell.free[doorbell] = true;
+	if (doorbell < rdev->doorbell.num_doorbells)
+		__clear_bit(doorbell, rdev->doorbell.used);
 }
 
 /*
-- 
cgit 


From 958b84fb3bef193198538b5c5902fa687cc8363f Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Thu, 14 Nov 2013 10:17:34 -0500
Subject: drm/radeon: adjust TN dpm parameters for stability (v2)

Adjust some of the TN dpm settings for stability.  Enabling
these features causes hangs and other stability problems
on certain boards.

v2: leave uvd dpm enabled

Bug:
https://bugzilla.kernel.org/show_bug.cgi?id=63101

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
 drivers/gpu/drm/radeon/trinity_dpm.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/radeon/trinity_dpm.c b/drivers/gpu/drm/radeon/trinity_dpm.c
index 9364129ba292..d700698a1f22 100644
--- a/drivers/gpu/drm/radeon/trinity_dpm.c
+++ b/drivers/gpu/drm/radeon/trinity_dpm.c
@@ -1873,9 +1873,9 @@ int trinity_dpm_init(struct radeon_device *rdev)
 	pi->enable_sclk_ds = true;
 	pi->enable_gfx_power_gating = true;
 	pi->enable_gfx_clock_gating = true;
-	pi->enable_mg_clock_gating = true;
-	pi->enable_gfx_dynamic_mgpg = true; /* ??? */
-	pi->override_dynamic_mgpg = true;
+	pi->enable_mg_clock_gating = false;
+	pi->enable_gfx_dynamic_mgpg = false;
+	pi->override_dynamic_mgpg = false;
 	pi->enable_auto_thermal_throttling = true;
 	pi->voltage_drop_in_dce = false; /* need to restructure dpm/modeset interaction */
 	pi->uvd_dpm = true; /* ??? */
-- 
cgit 


From 3a118989d58ca9b99f56f16a6fccbe34a9d8047e Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Thu, 14 Nov 2013 10:21:29 -0500
Subject: drm/radeon: enable DPM by default in TN asics

After adjusting the dpm parameters this seems to be
stable on most TN systems.  DPM is important for APUs
since the boot clocks are generally pretty low.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/radeon/radeon_pm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 866ace070b91..d1385ccc672c 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -1252,7 +1252,6 @@ int radeon_pm_init(struct radeon_device *rdev)
 	case CHIP_RS780:
 	case CHIP_RS880:
 	case CHIP_CAYMAN:
-	case CHIP_ARUBA:
 	case CHIP_BONAIRE:
 	case CHIP_KABINI:
 	case CHIP_KAVERI:
@@ -1284,6 +1283,7 @@ int radeon_pm_init(struct radeon_device *rdev)
 	case CHIP_BARTS:
 	case CHIP_TURKS:
 	case CHIP_CAICOS:
+	case CHIP_ARUBA:
 	case CHIP_TAHITI:
 	case CHIP_PITCAIRN:
 	case CHIP_VERDE:
-- 
cgit 


From de9f68df675e9d8b0b6a533818a79dca6546a7ba Mon Sep 17 00:00:00 2001
From: Steve French <smfrench@gmail.com>
Date: Fri, 15 Nov 2013 11:26:24 -0600
Subject: [CIFS] Set copychunk defaults

Patch 2 of the copy chunk series (the final patch will
use these to handle copies of files larger than the chunk size.

We set the same defaults that Windows and Samba expect for
CopyChunk.

Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: David Disseldorp <ddiss@samba.org>
---
 fs/cifs/cifsglob.h |  3 +++
 fs/cifs/smb2pdu.c  | 10 +++++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 50a6ca1bb521..d9ea7ada1378 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -858,6 +858,9 @@ struct cifs_tcon {
 	__le64 vol_create_time;
 	__u32 ss_flags;		/* sector size flags */
 	__u32 perf_sector_size; /* best sector size for perf */
+	__u32 max_chunks;
+	__u32 max_bytes_chunk;
+	__u32 max_bytes_copy;
 #endif /* CONFIG_CIFS_SMB2 */
 #ifdef CONFIG_CIFS_FSCACHE
 	u64 resource_id;		/* server resource id */
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 8ab05b0d6778..ca7f307ad97a 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -717,6 +717,14 @@ static inline void cifs_stats_fail_inc(struct cifs_tcon *tcon, uint16_t code)
 
 #define MAX_SHARENAME_LENGTH (255 /* server */ + 80 /* share */ + 1 /* NULL */)
 
+/* These are similar values to what Windows uses */
+static inline void init_copy_chunk_defaults(struct cifs_tcon *tcon)
+{
+	tcon->max_chunks = 256;
+	tcon->max_bytes_chunk = 1048576;
+	tcon->max_bytes_copy = 16777216;
+}
+
 int
 SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
 	  struct cifs_tcon *tcon, const struct nls_table *cp)
@@ -818,7 +826,7 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
 	if ((rsp->Capabilities & SMB2_SHARE_CAP_DFS) &&
 	    ((tcon->share_flags & SHI1005_FLAGS_DFS) == 0))
 		cifs_dbg(VFS, "DFS capability contradicts DFS flag\n");
-
+	init_copy_chunk_defaults(tcon);
 tcon_exit:
 	free_rsp_buf(resp_buftype, rsp);
 	kfree(unc_path);
-- 
cgit 


From 36b15875a7819a2ec4cb5748ff7096ad7bd86cbb Mon Sep 17 00:00:00 2001
From: Puneet Kumar <puneetster@chromium.org>
Date: Fri, 15 Nov 2013 11:41:29 -0800
Subject: ACPI / EC: Ensure lock is acquired before accessing ec struct members

A bug was introduced by commit b76b51ba0cef ('ACPI / EC: Add more debug
info and trivial code cleanup') that erroneously caused the struct member
to be accessed before acquiring the required lock.  This change fixes
it by ensuring the lock acquisition is done first.

Found by Aaron Durbin <adurbin@chromium.org>

Fixes: b76b51ba0cef ('ACPI / EC: Add more debug info and trivial code cleanup')
References: http://crbug.com/319019
Signed-off-by: Puneet Kumar <puneetster@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
[olof: Commit message reworded a bit]
Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: 3.8+ <stable@vger.kernel.org> # 3.8+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/ec.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index a06d98374705..15986f32009e 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -175,9 +175,10 @@ static void start_transaction(struct acpi_ec *ec)
 static void advance_transaction(struct acpi_ec *ec, u8 status)
 {
 	unsigned long flags;
-	struct transaction *t = ec->curr;
+	struct transaction *t;
 
 	spin_lock_irqsave(&ec->lock, flags);
+	t = ec->curr;
 	if (!t)
 		goto unlock;
 	if (t->wlen > t->wi) {
-- 
cgit 


From 545ef368e08fda654b6e63ce522c66339aa29156 Mon Sep 17 00:00:00 2001
From: Aaron Lu <aaron.lu@intel.com>
Date: Fri, 15 Nov 2013 14:39:12 +0800
Subject: ACPI / video: clean up DMI table for initial black screen problem

With commit 2c62333a408f "ACPI / video: Quirk initial backlight level 0"
we do not need to have the following systems in DMI table, so remove them.
HP Pavilion m4, HP 1000 Notebook PC, HP Pavilion g6 Notebook PC,
HP Pavilion dm4, Fujitsu E753, HP Folio 13-2000.

With this change, the use_bios_initial_backlight module parameter is no
longer needed and thus removed.

Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Tested-by: Alex Hung <alex.hung@canonical.com> # for HP 1000 Notebook PC
Tested-by: Gustavo Maciel Dias Vieira <gustavo@sagui.org> # for HP Pavilion dm4
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/video.c | 87 ++++++++--------------------------------------------
 1 file changed, 12 insertions(+), 75 deletions(-)

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 18dbdff4656e..995e91bcb97b 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -81,13 +81,6 @@ module_param(brightness_switch_enabled, bool, 0644);
 static bool allow_duplicates;
 module_param(allow_duplicates, bool, 0644);
 
-/*
- * Some BIOSes claim they use minimum backlight at boot,
- * and this may bring dimming screen after boot
- */
-static bool use_bios_initial_backlight = 1;
-module_param(use_bios_initial_backlight, bool, 0644);
-
 /*
  * For Windows 8 systems: if set ture and the GPU driver has
  * registered a backlight interface, skip registering ACPI video's.
@@ -406,12 +399,6 @@ static int __init video_set_bqc_offset(const struct dmi_system_id *d)
 	return 0;
 }
 
-static int video_ignore_initial_backlight(const struct dmi_system_id *d)
-{
-	use_bios_initial_backlight = 0;
-	return 0;
-}
-
 static struct dmi_system_id video_dmi_table[] __initdata = {
 	/*
 	 * Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121
@@ -456,54 +443,6 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7720"),
 		},
 	},
-	{
-	 .callback = video_ignore_initial_backlight,
-	 .ident = "HP Folio 13-2000",
-	 .matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "HP Folio 13 - 2000 Notebook PC"),
-		},
-	},
-	{
-	 .callback = video_ignore_initial_backlight,
-	 .ident = "Fujitsu E753",
-	 .matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "FUJITSU"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E753"),
-		},
-	},
-	{
-	 .callback = video_ignore_initial_backlight,
-	 .ident = "HP Pavilion dm4",
-	 .matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dm4 Notebook PC"),
-		},
-	},
-	{
-	 .callback = video_ignore_initial_backlight,
-	 .ident = "HP Pavilion g6 Notebook PC",
-	 .matches = {
-		 DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
-		 DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion g6 Notebook PC"),
-		},
-	},
-	{
-	 .callback = video_ignore_initial_backlight,
-	 .ident = "HP 1000 Notebook PC",
-	 .matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "HP 1000 Notebook PC"),
-		},
-	},
-	{
-	 .callback = video_ignore_initial_backlight,
-	 .ident = "HP Pavilion m4",
-	 .matches = {
-		DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
-		DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion m4 Notebook PC"),
-		},
-	},
 	{}
 };
 
@@ -839,20 +778,18 @@ acpi_video_init_brightness(struct acpi_video_device *device)
 	if (!device->cap._BQC)
 		goto set_level;
 
-	if (use_bios_initial_backlight) {
-		level = acpi_video_bqc_value_to_level(device, level_old);
-		/*
-		 * On some buggy laptops, _BQC returns an uninitialized
-		 * value when invoked for the first time, i.e.
-		 * level_old is invalid (no matter whether it's a level
-		 * or an index). Set the backlight to max_level in this case.
-		 */
-		for (i = 2; i < br->count; i++)
-			if (level == br->levels[i])
-				break;
-		if (i == br->count || !level)
-			level = max_level;
-	}
+	level = acpi_video_bqc_value_to_level(device, level_old);
+	/*
+	 * On some buggy laptops, _BQC returns an uninitialized
+	 * value when invoked for the first time, i.e.
+	 * level_old is invalid (no matter whether it's a level
+	 * or an index). Set the backlight to max_level in this case.
+	 */
+	for (i = 2; i < br->count; i++)
+		if (level == br->levels[i])
+			break;
+	if (i == br->count || !level)
+		level = max_level;
 
 set_level:
 	result = acpi_video_device_lcd_set_level(device, level);
-- 
cgit 


From de546c8a964accfbfc9c584e5fc1e4c3f5336a18 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Thu, 14 Nov 2013 15:08:42 -0800
Subject: i2c: cbus-gpio: Fix device tree binding

Looks like we're missing two lines needed to make it
work properly with device tree.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-cbus-gpio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/i2c/busses/i2c-cbus-gpio.c b/drivers/i2c/busses/i2c-cbus-gpio.c
index 2d46f13adfdf..ce7ffba2b020 100644
--- a/drivers/i2c/busses/i2c-cbus-gpio.c
+++ b/drivers/i2c/busses/i2c-cbus-gpio.c
@@ -246,6 +246,7 @@ static int cbus_i2c_probe(struct platform_device *pdev)
 	adapter->owner		= THIS_MODULE;
 	adapter->class		= I2C_CLASS_HWMON;
 	adapter->dev.parent	= &pdev->dev;
+	adapter->dev.of_node	= pdev->dev.of_node;
 	adapter->nr		= pdev->id;
 	adapter->timeout	= HZ;
 	adapter->algo		= &cbus_i2c_algo;
@@ -289,6 +290,7 @@ static struct platform_driver cbus_i2c_driver = {
 	.driver	= {
 		.owner	= THIS_MODULE,
 		.name	= "i2c-cbus-gpio",
+		.of_match_table = of_match_ptr(i2c_cbus_dt_ids),
 	},
 };
 module_platform_driver(cbus_i2c_driver);
-- 
cgit 


From 4c624840ebe2d84b72e4b2ab3e7390dddf74d0a5 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Thu, 14 Nov 2013 15:25:07 -0800
Subject: i2c: omap: Fix missing device tree flags for omap2

As we claim to support device tree for mach-omap2, we
should have the necessary flags in the driver to make it
usable.

Cc: linux-i2c@vger.kernel.org
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 Documentation/devicetree/bindings/i2c/i2c-omap.txt |  3 ++-
 drivers/i2c/busses/i2c-omap.c                      | 22 ++++++++++++++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/i2c/i2c-omap.txt b/Documentation/devicetree/bindings/i2c/i2c-omap.txt
index 56564aa4b444..7e49839d4124 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-omap.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-omap.txt
@@ -1,7 +1,8 @@
 I2C for OMAP platforms
 
 Required properties :
-- compatible : Must be "ti,omap3-i2c" or "ti,omap4-i2c"
+- compatible : Must be "ti,omap2420-i2c", "ti,omap2430-i2c", "ti,omap3-i2c"
+  or "ti,omap4-i2c"
 - ti,hwmods : Must be "i2c<n>", n being the instance number (1-based)
 - #address-cells = <1>;
 - #size-cells = <0>;
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 9967a6f9c2ff..f04afd1cafe0 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -1037,6 +1037,20 @@ static const struct i2c_algorithm omap_i2c_algo = {
 };
 
 #ifdef CONFIG_OF
+static struct omap_i2c_bus_platform_data omap2420_pdata = {
+	.rev = OMAP_I2C_IP_VERSION_1,
+	.flags = OMAP_I2C_FLAG_NO_FIFO |
+			OMAP_I2C_FLAG_SIMPLE_CLOCK |
+			OMAP_I2C_FLAG_16BIT_DATA_REG |
+			OMAP_I2C_FLAG_BUS_SHIFT_2,
+};
+
+static struct omap_i2c_bus_platform_data omap2430_pdata = {
+	.rev = OMAP_I2C_IP_VERSION_1,
+	.flags = OMAP_I2C_FLAG_BUS_SHIFT_2 |
+			OMAP_I2C_FLAG_FORCE_19200_INT_CLK,
+};
+
 static struct omap_i2c_bus_platform_data omap3_pdata = {
 	.rev = OMAP_I2C_IP_VERSION_1,
 	.flags = OMAP_I2C_FLAG_BUS_SHIFT_2,
@@ -1055,6 +1069,14 @@ static const struct of_device_id omap_i2c_of_match[] = {
 		.compatible = "ti,omap3-i2c",
 		.data = &omap3_pdata,
 	},
+	{
+		.compatible = "ti,omap2430-i2c",
+		.data = &omap2430_pdata,
+	},
+	{
+		.compatible = "ti,omap2420-i2c",
+		.data = &omap2420_pdata,
+	},
 	{ },
 };
 MODULE_DEVICE_TABLE(of, omap_i2c_of_match);
-- 
cgit 


From fd4446f25e402fb186a6b7ec7a374aa8925ed708 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Thu, 14 Nov 2013 15:25:09 -0800
Subject: ARM: OMAP2+: Fix GPMC and simplify bootloader timings for 8250 and
 smc91x
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Commit f2bf0e72d000 (ARM: OMAP2+: Add minimal 8250 support
for GPMC) added support for using bootloader timings for some
devices. Turns out we can do the same by looking at the compatible
flags of the child without adding a new function as smc91x has
a similar issue as 8250 with the bootloader timings.

And let's fix the 8250 naming, we should use the device type as
the name like uart instead of 8250 for zoom dts file.

Cc: "Benoît Cousson" <bcousson@baylibre.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap-zoom-common.dtsi |  2 +-
 arch/arm/mach-omap2/gpmc.c              | 58 +++++++++++----------------------
 2 files changed, 20 insertions(+), 40 deletions(-)

diff --git a/arch/arm/boot/dts/omap-zoom-common.dtsi b/arch/arm/boot/dts/omap-zoom-common.dtsi
index b0ee342598f0..68221fab978d 100644
--- a/arch/arm/boot/dts/omap-zoom-common.dtsi
+++ b/arch/arm/boot/dts/omap-zoom-common.dtsi
@@ -13,7 +13,7 @@
 	 * they probably share the same GPIO IRQ
 	 * REVISIT: Add timing support from slls644g.pdf
 	 */
-	8250@3,0 {
+	uart@3,0 {
 		compatible = "ns16550a";
 		reg = <3 0 0x100>;
 		bank-width = <2>;
diff --git a/arch/arm/mach-omap2/gpmc.c b/arch/arm/mach-omap2/gpmc.c
index 51525faa0aec..e09e5ba76a8b 100644
--- a/arch/arm/mach-omap2/gpmc.c
+++ b/arch/arm/mach-omap2/gpmc.c
@@ -1481,6 +1481,22 @@ static int gpmc_probe_generic_child(struct platform_device *pdev,
 		return ret;
 	}
 
+	/*
+	 * For some GPMC devices we still need to rely on the bootloader
+	 * timings because the devices can be connected via FPGA. So far
+	 * the list is smc91x on the omap2 SDP boards, and 8250 on zooms.
+	 * REVISIT: Add timing support from slls644g.pdf and from the
+	 * lan91c96 manual.
+	 */
+	if (of_device_is_compatible(child, "ns16550a") ||
+	    of_device_is_compatible(child, "smsc,lan91c94") ||
+	    of_device_is_compatible(child, "smsc,lan91c111")) {
+		dev_warn(&pdev->dev,
+			 "%s using bootloader timings on CS%d\n",
+			 child->name, cs);
+		goto no_timings;
+	}
+
 	/*
 	 * FIXME: gpmc_cs_request() will map the CS to an arbitary
 	 * location in the gpmc address space. When booting with
@@ -1509,6 +1525,7 @@ static int gpmc_probe_generic_child(struct platform_device *pdev,
 	gpmc_read_timings_dt(child, &gpmc_t);
 	gpmc_cs_set_timings(cs, &gpmc_t);
 
+no_timings:
 	if (of_platform_device_create(child, NULL, &pdev->dev))
 		return 0;
 
@@ -1521,42 +1538,6 @@ err:
 	return ret;
 }
 
-/*
- * REVISIT: Add timing support from slls644g.pdf
- */
-static int gpmc_probe_8250(struct platform_device *pdev,
-				struct device_node *child)
-{
-	struct resource res;
-	unsigned long base;
-	int ret, cs;
-
-	if (of_property_read_u32(child, "reg", &cs) < 0) {
-		dev_err(&pdev->dev, "%s has no 'reg' property\n",
-			child->full_name);
-		return -ENODEV;
-	}
-
-	if (of_address_to_resource(child, 0, &res) < 0) {
-		dev_err(&pdev->dev, "%s has malformed 'reg' property\n",
-			child->full_name);
-		return -ENODEV;
-	}
-
-	ret = gpmc_cs_request(cs, resource_size(&res), &base);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "cannot request GPMC CS %d\n", cs);
-		return ret;
-	}
-
-	if (of_platform_device_create(child, NULL, &pdev->dev))
-		return 0;
-
-	dev_err(&pdev->dev, "failed to create gpmc child %s\n", child->name);
-
-	return -ENODEV;
-}
-
 static int gpmc_probe_dt(struct platform_device *pdev)
 {
 	int ret;
@@ -1598,10 +1579,9 @@ static int gpmc_probe_dt(struct platform_device *pdev)
 		else if (of_node_cmp(child->name, "onenand") == 0)
 			ret = gpmc_probe_onenand_child(pdev, child);
 		else if (of_node_cmp(child->name, "ethernet") == 0 ||
-			 of_node_cmp(child->name, "nor") == 0)
+			 of_node_cmp(child->name, "nor") == 0 ||
+			 of_node_cmp(child->name, "uart") == 0)
 			ret = gpmc_probe_generic_child(pdev, child);
-		else if (of_node_cmp(child->name, "8250") == 0)
-			ret = gpmc_probe_8250(pdev, child);
 
 		if (WARN(ret < 0, "%s: probing gpmc child %s failed\n",
 			 __func__, child->full_name))
-- 
cgit 


From 467f4bd2606d3ba7930cdcb489e7cb84d8589a39 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Thu, 14 Nov 2013 15:25:09 -0800
Subject: ARM: dts: Fix omap2 specific dtsi files by adding the missing entries
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Looks like we're missing few entries for omap2 and the drivers
have only worked because of the omap hwmod building the devices
for the missing entries.

Let's fix the missing entries so we don't need to rely on hwmod
for the basic data and can then later on remove the duplicate
data from hwmod. Otherwise device tree only drivers will not
work properly.

Cc: "Benoît Cousson" <bcousson@baylibre.com>
Cc: devicetree@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap2.dtsi    | 96 +++++++++++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/omap2420.dtsi | 23 ++++++++++
 arch/arm/boot/dts/omap2430.dtsi | 49 +++++++++++++++++++++
 3 files changed, 168 insertions(+)

diff --git a/arch/arm/boot/dts/omap2.dtsi b/arch/arm/boot/dts/omap2.dtsi
index a2bfcde858a6..d0c5b37e248c 100644
--- a/arch/arm/boot/dts/omap2.dtsi
+++ b/arch/arm/boot/dts/omap2.dtsi
@@ -9,6 +9,7 @@
  */
 
 #include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/pinctrl/omap.h>
 
 #include "skeleton.dtsi"
@@ -21,6 +22,8 @@
 		serial0 = &uart1;
 		serial1 = &uart2;
 		serial2 = &uart3;
+		i2c0 = &i2c1;
+		i2c1 = &i2c2;
 	};
 
 	cpus {
@@ -53,6 +56,28 @@
 		ranges;
 		ti,hwmods = "l3_main";
 
+		aes: aes@480a6000 {
+			compatible = "ti,omap2-aes";
+			ti,hwmods = "aes";
+			reg = <0x480a6000 0x50>;
+			dmas = <&sdma 9 &sdma 10>;
+			dma-names = "tx", "rx";
+		};
+
+		hdq1w: 1w@480b2000 {
+			compatible = "ti,omap2420-1w";
+			ti,hwmods = "hdq1w";
+			reg = <0x480b2000 0x1000>;
+			interrupts = <58>;
+		};
+
+		mailbox: mailbox@48094000 {
+			compatible = "ti,omap2-mailbox";
+			ti,hwmods = "mailbox";
+			reg = <0x48094000 0x200>;
+			interrupts = <26>;
+		};
+
 		intc: interrupt-controller@1 {
 			compatible = "ti,omap2-intc";
 			interrupt-controller;
@@ -63,6 +88,7 @@
 
 		sdma: dma-controller@48056000 {
 			compatible = "ti,omap2430-sdma", "ti,omap2420-sdma";
+			ti,hwmods = "dma";
 			reg = <0x48056000 0x1000>;
 			interrupts = <12>,
 				     <13>,
@@ -73,21 +99,91 @@
 			#dma-requests = <64>;
 		};
 
+		i2c1: i2c@48070000 {
+			compatible = "ti,omap2-i2c";
+			ti,hwmods = "i2c1";
+			reg = <0x48070000 0x80>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			interrupts = <56>;
+			dmas = <&sdma 27 &sdma 28>;
+			dma-names = "tx", "rx";
+		};
+
+		i2c2: i2c@48072000 {
+			compatible = "ti,omap2-i2c";
+			ti,hwmods = "i2c2";
+			reg = <0x48072000 0x80>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			interrupts = <57>;
+			dmas = <&sdma 29 &sdma 30>;
+			dma-names = "tx", "rx";
+		};
+
+		mcspi1: mcspi@48098000 {
+			compatible = "ti,omap2-mcspi";
+			ti,hwmods = "mcspi1";
+			reg = <0x48098000 0x100>;
+			interrupts = <65>;
+			dmas = <&sdma 35 &sdma 36 &sdma 37 &sdma 38
+				&sdma 39 &sdma 40 &sdma 41 &sdma 42>;
+			dma-names = "tx0", "rx0", "tx1", "rx1",
+				    "tx2", "rx2", "tx3", "rx3";
+		};
+
+		mcspi2: mcspi@4809a000 {
+			compatible = "ti,omap2-mcspi";
+			ti,hwmods = "mcspi2";
+			reg = <0x4809a000 0x100>;
+			interrupts = <66>;
+			dmas = <&sdma 43 &sdma 44 &sdma 45 &sdma 46>;
+			dma-names = "tx0", "rx0", "tx1", "rx1";
+		};
+
+		rng: rng@480a0000 {
+			compatible = "ti,omap2-rng";
+			ti,hwmods = "rng";
+			reg = <0x480a0000 0x50>;
+			interrupts = <36>;
+		};
+
+		sham: sham@480a4000 {
+			compatible = "ti,omap2-sham";
+			ti,hwmods = "sham";
+			reg = <0x480a4000 0x64>;
+			interrupts = <51>;
+			dmas = <&sdma 13>;
+			dma-names = "rx";
+		};
+
 		uart1: serial@4806a000 {
 			compatible = "ti,omap2-uart";
 			ti,hwmods = "uart1";
+			reg = <0x4806a000 0x2000>;
+			interrupts = <72>;
+			dmas = <&sdma 49 &sdma 50>;
+			dma-names = "tx", "rx";
 			clock-frequency = <48000000>;
 		};
 
 		uart2: serial@4806c000 {
 			compatible = "ti,omap2-uart";
 			ti,hwmods = "uart2";
+			reg = <0x4806c000 0x400>;
+			interrupts = <73>;
+			dmas = <&sdma 51 &sdma 52>;
+			dma-names = "tx", "rx";
 			clock-frequency = <48000000>;
 		};
 
 		uart3: serial@4806e000 {
 			compatible = "ti,omap2-uart";
 			ti,hwmods = "uart3";
+			reg = <0x4806e000 0x400>;
+			interrupts = <74>;
+			dmas = <&sdma 53 &sdma 54>;
+			dma-names = "tx", "rx";
 			clock-frequency = <48000000>;
 		};
 
diff --git a/arch/arm/boot/dts/omap2420.dtsi b/arch/arm/boot/dts/omap2420.dtsi
index c8f9c55169ea..60c605de22dd 100644
--- a/arch/arm/boot/dts/omap2420.dtsi
+++ b/arch/arm/boot/dts/omap2420.dtsi
@@ -114,6 +114,15 @@
 			dma-names = "tx", "rx";
 		};
 
+		msdi1: mmc@4809c000 {
+			compatible = "ti,omap2420-mmc";
+			ti,hwmods = "msdi1";
+			reg = <0x4809c000 0x80>;
+			interrupts = <83>;
+			dmas = <&sdma 61 &sdma 62>;
+			dma-names = "tx", "rx";
+		};
+
 		timer1: timer@48028000 {
 			compatible = "ti,omap2420-timer";
 			reg = <0x48028000 0x400>;
@@ -121,5 +130,19 @@
 			ti,hwmods = "timer1";
 			ti,timer-alwon;
 		};
+
+		wd_timer2: wdt@48022000 {
+			compatible = "ti,omap2-wdt";
+			ti,hwmods = "wd_timer2";
+			reg = <0x48022000 0x80>;
+		};
 	};
 };
+
+&i2c1 {
+	compatible = "ti,omap2420-i2c";
+};
+
+&i2c2 {
+	compatible = "ti,omap2420-i2c";
+};
diff --git a/arch/arm/boot/dts/omap2430.dtsi b/arch/arm/boot/dts/omap2430.dtsi
index c535a5a2b27f..d624345666f5 100644
--- a/arch/arm/boot/dts/omap2430.dtsi
+++ b/arch/arm/boot/dts/omap2430.dtsi
@@ -175,6 +175,25 @@
 			dma-names = "tx", "rx";
 		};
 
+		mmc1: mmc@4809c000 {
+			compatible = "ti,omap2-hsmmc";
+			reg = <0x4809c000 0x200>;
+			interrupts = <83>;
+			ti,hwmods = "mmc1";
+			ti,dual-volt;
+			dmas = <&sdma 61>, <&sdma 62>;
+			dma-names = "tx", "rx";
+		};
+
+		mmc2: mmc@480b4000 {
+			compatible = "ti,omap2-hsmmc";
+			reg = <0x480b4000 0x200>;
+			interrupts = <86>;
+			ti,hwmods = "mmc2";
+			dmas = <&sdma 47>, <&sdma 48>;
+			dma-names = "tx", "rx";
+		};
+
 		timer1: timer@49018000 {
 			compatible = "ti,omap2420-timer";
 			reg = <0x49018000 0x400>;
@@ -182,5 +201,35 @@
 			ti,hwmods = "timer1";
 			ti,timer-alwon;
 		};
+
+		mcspi3: mcspi@480b8000 {
+			compatible = "ti,omap2-mcspi";
+			ti,hwmods = "mcspi3";
+			reg = <0x480b8000 0x100>;
+			interrupts = <91>;
+			dmas = <&sdma 15 &sdma 16 &sdma 23 &sdma 24>;
+			dma-names = "tx0", "rx0", "tx1", "rx1";
+		};
+
+		usb_otg_hs: usb_otg_hs@480ac000 {
+			compatible = "ti,omap2-musb";
+			ti,hwmods = "usb_otg_hs";
+			reg = <0x480ac000 0x1000>;
+			interrupts = <93>;
+		};
+
+		wd_timer2: wdt@49016000 {
+			compatible = "ti,omap2-wdt";
+			ti,hwmods = "wd_timer2";
+			reg = <0x49016000 0x80>;
+		};
 	};
 };
+
+&i2c1 {
+	compatible = "ti,omap2430-i2c";
+};
+
+&i2c2 {
+	compatible = "ti,omap2430-i2c";
+};
-- 
cgit 


From 7e2e19210a8bbbcacd31e8ce4a0ea64e3ac37dea Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Thu, 31 Oct 2013 15:26:31 +0200
Subject: IB/mlx5: Remove dead code

The value of the local variable index is never used in reg_mr_callback().

Signed-off-by: Eli Cohen <eli@mellanox.com>

[ Remove now-unused variable delta too.  - Roland ]

Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/mlx5/mr.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 2c4626f7b1b8..039c3e40fcb4 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -72,14 +72,8 @@ static void reg_mr_callback(int status, void *context)
 	int c = order2idx(dev, mr->order);
 	struct mlx5_cache_ent *ent = &cache->ent[c];
 	u8 key;
-	unsigned long delta = jiffies - mr->start;
-	unsigned long index;
 	unsigned long flags;
 
-	index = find_last_bit(&delta, 8 * sizeof(delta));
-	if (index == 64)
-		index = 0;
-
 	spin_lock_irqsave(&ent->lock, flags);
 	ent->pending--;
 	spin_unlock_irqrestore(&ent->lock, flags);
-- 
cgit 


From 2b136d025348774633a2f6fc2a87f0cf409a3ab9 Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Thu, 31 Oct 2013 15:26:33 +0200
Subject: IB/mlx5: Fix list_del of empty list

For archs with pages size of 4K, when the chunk is freed, fwp is not in the
list so avoid attempting to delete it.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
index ba816c25c5c1..37b6ad1f9a1b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/pagealloc.c
@@ -229,7 +229,8 @@ static void free_4k(struct mlx5_core_dev *dev, u64 addr)
 	set_bit(n, &fwp->bitmask);
 	if (fwp->free_count == MLX5_NUM_4K_IN_PAGE) {
 		rb_erase(&fwp->rb_node, &dev->priv.page_root);
-		list_del(&fwp->list);
+		if (fwp->free_count != 1)
+			list_del(&fwp->list);
 		dma_unmap_page(&dev->pdev->dev, addr, PAGE_SIZE, DMA_BIDIRECTIONAL);
 		__free_page(fwp->page);
 		kfree(fwp);
-- 
cgit 


From 79d3da9c51a5fef672b329b8d8583a089d147bef Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Thu, 31 Oct 2013 15:26:34 +0200
Subject: IB/mlx4: Fix device max capabilities check

Move the check on max supported CQEs after the final number of entries is
evaluated.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/mlx4/cq.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/mlx4/cq.c b/drivers/infiniband/hw/mlx4/cq.c
index d5e60f44ba5a..ea299515ecb2 100644
--- a/drivers/infiniband/hw/mlx4/cq.c
+++ b/drivers/infiniband/hw/mlx4/cq.c
@@ -365,7 +365,7 @@ int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
 
 	mutex_lock(&cq->resize_mutex);
 
-	if (entries < 1 || entries > dev->dev->caps.max_cqes) {
+	if (entries < 1) {
 		err = -EINVAL;
 		goto out;
 	}
@@ -376,6 +376,11 @@ int mlx4_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata)
 		goto out;
 	}
 
+	if (entries > dev->dev->caps.max_cqes) {
+		err = -EINVAL;
+		goto out;
+	}
+
 	if (ibcq->uobject) {
 		err = mlx4_alloc_resize_umem(dev, cq, entries, udata);
 		if (err)
-- 
cgit 


From cf1c5e1f1c965cf44e680127b2e9564fc472676c Mon Sep 17 00:00:00 2001
From: Eli Cohen <eli@dev.mellanox.co.il>
Date: Thu, 31 Oct 2013 15:26:36 +0200
Subject: IB/mlx5: Fix page shift in create CQ for userspace

When creating a CQ, we must use mlx5 adapter page shift.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/hw/mlx5/cq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c
index 28344773f640..b72627429745 100644
--- a/drivers/infiniband/hw/mlx5/cq.c
+++ b/drivers/infiniband/hw/mlx5/cq.c
@@ -556,7 +556,7 @@ static int create_cq_user(struct mlx5_ib_dev *dev, struct ib_udata *udata,
 		goto err_db;
 	}
 	mlx5_ib_populate_pas(dev, cq->buf.umem, page_shift, (*cqb)->pas, 0);
-	(*cqb)->ctx.log_pg_sz = page_shift - PAGE_SHIFT;
+	(*cqb)->ctx.log_pg_sz = page_shift - MLX5_ADAPTER_PAGE_SHIFT;
 
 	*index = to_mucontext(context)->uuari.uars[0].index;
 
-- 
cgit 


From f9de11a165943a55e0fbda714caf60eaeb276a42 Mon Sep 17 00:00:00 2001
From: Wang Weidong <wangweidong1@huawei.com>
Date: Fri, 15 Nov 2013 10:34:30 -0500
Subject: bonding: add ip checks when store ip target

I met a Bug when I add ip target with the wrong ip address:

echo +500.500.500.500 > /sys/class/net/bond0/bonding/arp_ip_target

the wrong ip address will transfor to 245.245.245.244 and add
to the ip target success, it is uncorrect, so I add checks to avoid
adding wrong address.

The in4_pton() will set wrong ip address to 0.0.0.0, it will return by
the next check and will not add to ip target.

v2
According Veaceslav's opinion, simplify the code.

v3
According Veaceslav's opinion, add broadcast check and make a micro
definition to package it.

v4
Solve the problem of the format which David point out.

Suggested-by: Veaceslav Falico <vfalico@redhat.com>
Suggested-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_sysfs.c | 19 ++++++-------------
 drivers/net/bonding/bonding.h    |  3 +++
 2 files changed, 9 insertions(+), 13 deletions(-)

diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 9f32e2304004..0ec2a7e8c8a9 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -604,15 +604,14 @@ static ssize_t bonding_store_arp_targets(struct device *d,
 		return restart_syscall();
 
 	targets = bond->params.arp_targets;
-	newtarget = in_aton(buf + 1);
+	if (!in4_pton(buf + 1, -1, (u8 *)&newtarget, -1, NULL) ||
+	    IS_IP_TARGET_UNUSABLE_ADDRESS(newtarget)) {
+		pr_err("%s: invalid ARP target %pI4 specified for addition\n",
+		       bond->dev->name, &newtarget);
+		goto out;
+	}
 	/* look for adds */
 	if (buf[0] == '+') {
-		if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) {
-			pr_err("%s: invalid ARP target %pI4 specified for addition\n",
-			       bond->dev->name, &newtarget);
-			goto out;
-		}
-
 		if (bond_get_targets_ip(targets, newtarget) != -1) { /* dup */
 			pr_err("%s: ARP target %pI4 is already present\n",
 			       bond->dev->name, &newtarget);
@@ -635,12 +634,6 @@ static ssize_t bonding_store_arp_targets(struct device *d,
 		targets[ind] = newtarget;
 		write_unlock_bh(&bond->lock);
 	} else if (buf[0] == '-')	{
-		if ((newtarget == 0) || (newtarget == htonl(INADDR_BROADCAST))) {
-			pr_err("%s: invalid ARP target %pI4 specified for removal\n",
-			       bond->dev->name, &newtarget);
-			goto out;
-		}
-
 		ind = bond_get_targets_ip(targets, newtarget);
 		if (ind == -1) {
 			pr_err("%s: unable to remove nonexistent ARP target %pI4.\n",
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index 77a07a12e77f..ca31286aa028 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -63,6 +63,9 @@
 		(((mode) == BOND_MODE_TLB) ||	\
 		 ((mode) == BOND_MODE_ALB))
 
+#define IS_IP_TARGET_UNUSABLE_ADDRESS(a)	\
+	((htonl(INADDR_BROADCAST) == a) ||	\
+	 ipv4_is_zeronet(a))
 /*
  * Less bad way to call ioctl from within the kernel; this needs to be
  * done some other way to get the call out of interrupt context.
-- 
cgit 


From 93d17247118ca533edd489f8e09bde417f4720ce Mon Sep 17 00:00:00 2001
From: Tim Kryger <tim.kryger@linaro.org>
Date: Thu, 14 Nov 2013 13:02:13 -0800
Subject: i2c: bcm-kona: Introduce Broadcom I2C Driver

Introduce support for Broadcom Serial Controller (BSC) I2C bus found
in the Kona family of Mobile SoCs.  FIFO hardware is utilized but only
standard mode (100kHz), fast mode (400kHz), fast mode plus (1MHz), and
I2C high-speed (3.4 MHz) bus speeds are supported.

Signed-off-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Matt Porter <matt.porter@linaro.org>
Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
[wsa: fixed Kconfig sorting, squashed broken out patches into one]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 .../devicetree/bindings/i2c/i2c-bcm-kona.txt       |  35 +
 drivers/i2c/busses/Kconfig                         |  10 +
 drivers/i2c/busses/Makefile                        |   1 +
 drivers/i2c/busses/i2c-bcm-kona.c                  | 908 +++++++++++++++++++++
 4 files changed, 954 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/i2c/i2c-bcm-kona.txt
 create mode 100644 drivers/i2c/busses/i2c-bcm-kona.c

diff --git a/Documentation/devicetree/bindings/i2c/i2c-bcm-kona.txt b/Documentation/devicetree/bindings/i2c/i2c-bcm-kona.txt
new file mode 100644
index 000000000000..1b87b741fa8e
--- /dev/null
+++ b/Documentation/devicetree/bindings/i2c/i2c-bcm-kona.txt
@@ -0,0 +1,35 @@
+Broadcom Kona Family I2C
+=========================
+
+This I2C controller is used in the following Broadcom SoCs:
+
+  BCM11130
+  BCM11140
+  BCM11351
+  BCM28145
+  BCM28155
+
+Required Properties
+-------------------
+- compatible: "brcm,bcm11351-i2c", "brcm,kona-i2c"
+- reg: Physical base address and length of controller registers
+- interrupts: The interrupt number used by the controller
+- clocks: clock specifier for the kona i2c external clock
+- clock-frequency: The I2C bus frequency in Hz
+- #address-cells: Should be <1>
+- #size-cells: Should be <0>
+
+Refer to clocks/clock-bindings.txt for generic clock consumer
+properties.
+
+Example:
+
+i2c@3e016000 {
+	compatible = "brcm,bcm11351-i2c","brcm,kona-i2c";
+	reg = <0x3e016000 0x80>;
+	interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
+	clocks = <&bsc1_clk>;
+	clock-frequency = <400000>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+};
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 9feea170eee7..3b26129f6055 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -346,6 +346,16 @@ config I2C_BCM2835
 	  This support is also available as a module.  If so, the module
 	  will be called i2c-bcm2835.
 
+config I2C_BCM_KONA
+	tristate "BCM Kona I2C adapter"
+	depends on ARCH_BCM_MOBILE
+	default y
+	help
+	  If you say yes to this option, support will be included for the
+	  I2C interface on the Broadcom Kona family of processors.
+
+	  If you do not need KONA I2C inteface, say N.
+
 config I2C_BLACKFIN_TWI
 	tristate "Blackfin TWI I2C support"
 	depends on BLACKFIN
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index e129486c828f..c73eb0ea788e 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -89,6 +89,7 @@ obj-$(CONFIG_I2C_VIPERBOARD)	+= i2c-viperboard.o
 
 # Other I2C/SMBus bus drivers
 obj-$(CONFIG_I2C_ACORN)		+= i2c-acorn.o
+obj-$(CONFIG_I2C_BCM_KONA)	+= i2c-bcm-kona.o
 obj-$(CONFIG_I2C_ELEKTOR)	+= i2c-elektor.o
 obj-$(CONFIG_I2C_PCA_ISA)	+= i2c-pca-isa.o
 obj-$(CONFIG_I2C_SIBYTE)	+= i2c-sibyte.o
diff --git a/drivers/i2c/busses/i2c-bcm-kona.c b/drivers/i2c/busses/i2c-bcm-kona.c
new file mode 100644
index 000000000000..7b7b7622b0d1
--- /dev/null
+++ b/drivers/i2c/busses/i2c-bcm-kona.c
@@ -0,0 +1,908 @@
+/*
+ * Copyright (C) 2013 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/slab.h>
+
+/* Hardware register offsets and field defintions */
+#define CS_OFFSET				0x00000020
+#define CS_ACK_SHIFT				3
+#define CS_ACK_MASK				0x00000008
+#define CS_ACK_CMD_GEN_START			0x00000000
+#define CS_ACK_CMD_GEN_RESTART			0x00000001
+#define CS_CMD_SHIFT				1
+#define CS_CMD_CMD_NO_ACTION			0x00000000
+#define CS_CMD_CMD_START_RESTART		0x00000001
+#define CS_CMD_CMD_STOP				0x00000002
+#define CS_EN_SHIFT				0
+#define CS_EN_CMD_ENABLE_BSC			0x00000001
+
+#define TIM_OFFSET				0x00000024
+#define TIM_PRESCALE_SHIFT			6
+#define TIM_P_SHIFT				3
+#define TIM_NO_DIV_SHIFT			2
+#define TIM_DIV_SHIFT				0
+
+#define DAT_OFFSET				0x00000028
+
+#define TOUT_OFFSET				0x0000002c
+
+#define TXFCR_OFFSET				0x0000003c
+#define TXFCR_FIFO_FLUSH_MASK			0x00000080
+#define TXFCR_FIFO_EN_MASK			0x00000040
+
+#define IER_OFFSET				0x00000044
+#define IER_READ_COMPLETE_INT_MASK		0x00000010
+#define IER_I2C_INT_EN_MASK			0x00000008
+#define IER_FIFO_INT_EN_MASK			0x00000002
+#define IER_NOACK_EN_MASK			0x00000001
+
+#define ISR_OFFSET				0x00000048
+#define ISR_RESERVED_MASK			0xffffff60
+#define ISR_CMDBUSY_MASK			0x00000080
+#define ISR_READ_COMPLETE_MASK			0x00000010
+#define ISR_SES_DONE_MASK			0x00000008
+#define ISR_ERR_MASK				0x00000004
+#define ISR_TXFIFOEMPTY_MASK			0x00000002
+#define ISR_NOACK_MASK				0x00000001
+
+#define CLKEN_OFFSET				0x0000004C
+#define CLKEN_AUTOSENSE_OFF_MASK		0x00000080
+#define CLKEN_M_SHIFT				4
+#define CLKEN_N_SHIFT				1
+#define CLKEN_CLKEN_MASK			0x00000001
+
+#define FIFO_STATUS_OFFSET			0x00000054
+#define FIFO_STATUS_RXFIFO_EMPTY_MASK		0x00000004
+#define FIFO_STATUS_TXFIFO_EMPTY_MASK		0x00000010
+
+#define HSTIM_OFFSET				0x00000058
+#define HSTIM_HS_MODE_MASK			0x00008000
+#define HSTIM_HS_HOLD_SHIFT			10
+#define HSTIM_HS_HIGH_PHASE_SHIFT		5
+#define HSTIM_HS_SETUP_SHIFT			0
+
+#define PADCTL_OFFSET				0x0000005c
+#define PADCTL_PAD_OUT_EN_MASK			0x00000004
+
+#define RXFCR_OFFSET				0x00000068
+#define RXFCR_NACK_EN_SHIFT			7
+#define RXFCR_READ_COUNT_SHIFT			0
+#define RXFIFORDOUT_OFFSET			0x0000006c
+
+/* Locally used constants */
+#define MAX_RX_FIFO_SIZE		64U /* bytes */
+#define MAX_TX_FIFO_SIZE		64U /* bytes */
+
+#define STD_EXT_CLK_FREQ		13000000UL
+#define HS_EXT_CLK_FREQ			104000000UL
+
+#define MASTERCODE			0x08 /* Mastercodes are 0000_1xxxb */
+
+#define I2C_TIMEOUT			100 /* msecs */
+
+/* Operations that can be commanded to the controller */
+enum bcm_kona_cmd_t {
+	BCM_CMD_NOACTION = 0,
+	BCM_CMD_START,
+	BCM_CMD_RESTART,
+	BCM_CMD_STOP,
+};
+
+enum bus_speed_index {
+	BCM_SPD_100K = 0,
+	BCM_SPD_400K,
+	BCM_SPD_1MHZ,
+};
+
+enum hs_bus_speed_index {
+	BCM_SPD_3P4MHZ = 0,
+};
+
+/* Internal divider settings for standard mode, fast mode and fast mode plus */
+struct bus_speed_cfg {
+	uint8_t time_m;		/* Number of cycles for setup time */
+	uint8_t time_n;		/* Number of cycles for hold time */
+	uint8_t prescale;	/* Prescale divider */
+	uint8_t time_p;		/* Timing coefficient */
+	uint8_t no_div;		/* Disable clock divider */
+	uint8_t time_div;	/* Post-prescale divider */
+};
+
+/* Internal divider settings for high-speed mode */
+struct hs_bus_speed_cfg {
+	uint8_t hs_hold;	/* Number of clock cycles SCL stays low until
+				   the end of bit period */
+	uint8_t hs_high_phase;	/* Number of clock cycles SCL stays high
+				   before it falls */
+	uint8_t hs_setup;	/* Number of clock cycles SCL stays low
+				   before it rises  */
+	uint8_t prescale;	/* Prescale divider */
+	uint8_t time_p;		/* Timing coefficient */
+	uint8_t no_div;		/* Disable clock divider */
+	uint8_t time_div;	/* Post-prescale divider */
+};
+
+static const struct bus_speed_cfg std_cfg_table[] = {
+	[BCM_SPD_100K] = {0x01, 0x01, 0x03, 0x06, 0x00, 0x02},
+	[BCM_SPD_400K] = {0x05, 0x01, 0x03, 0x05, 0x01, 0x02},
+	[BCM_SPD_1MHZ] = {0x01, 0x01, 0x03, 0x01, 0x01, 0x03},
+};
+
+static const struct hs_bus_speed_cfg hs_cfg_table[] = {
+	[BCM_SPD_3P4MHZ] = {0x01, 0x08, 0x14, 0x00, 0x06, 0x01, 0x00},
+};
+
+struct bcm_kona_i2c_dev {
+	struct device *device;
+
+	void __iomem *base;
+	int irq;
+	struct clk *external_clk;
+
+	struct i2c_adapter adapter;
+
+	struct completion done;
+
+	const struct bus_speed_cfg *std_cfg;
+	const struct hs_bus_speed_cfg *hs_cfg;
+};
+
+static void bcm_kona_i2c_send_cmd_to_ctrl(struct bcm_kona_i2c_dev *dev,
+					  enum bcm_kona_cmd_t cmd)
+{
+	dev_dbg(dev->device, "%s, %d\n", __func__, cmd);
+
+	switch (cmd) {
+	case BCM_CMD_NOACTION:
+		writel((CS_CMD_CMD_NO_ACTION << CS_CMD_SHIFT) |
+		       (CS_EN_CMD_ENABLE_BSC << CS_EN_SHIFT),
+		       dev->base + CS_OFFSET);
+		break;
+
+	case BCM_CMD_START:
+		writel((CS_ACK_CMD_GEN_START << CS_ACK_SHIFT) |
+		       (CS_CMD_CMD_START_RESTART << CS_CMD_SHIFT) |
+		       (CS_EN_CMD_ENABLE_BSC << CS_EN_SHIFT),
+		       dev->base + CS_OFFSET);
+		break;
+
+	case BCM_CMD_RESTART:
+		writel((CS_ACK_CMD_GEN_RESTART << CS_ACK_SHIFT) |
+		       (CS_CMD_CMD_START_RESTART << CS_CMD_SHIFT) |
+		       (CS_EN_CMD_ENABLE_BSC << CS_EN_SHIFT),
+		       dev->base + CS_OFFSET);
+		break;
+
+	case BCM_CMD_STOP:
+		writel((CS_CMD_CMD_STOP << CS_CMD_SHIFT) |
+		       (CS_EN_CMD_ENABLE_BSC << CS_EN_SHIFT),
+		       dev->base + CS_OFFSET);
+		break;
+
+	default:
+		dev_err(dev->device, "Unknown command %d\n", cmd);
+	}
+}
+
+static void bcm_kona_i2c_enable_clock(struct bcm_kona_i2c_dev *dev)
+{
+	writel(readl(dev->base + CLKEN_OFFSET) | CLKEN_CLKEN_MASK,
+	       dev->base + CLKEN_OFFSET);
+}
+
+static void bcm_kona_i2c_disable_clock(struct bcm_kona_i2c_dev *dev)
+{
+	writel(readl(dev->base + CLKEN_OFFSET) & ~CLKEN_CLKEN_MASK,
+	       dev->base + CLKEN_OFFSET);
+}
+
+static irqreturn_t bcm_kona_i2c_isr(int irq, void *devid)
+{
+	struct bcm_kona_i2c_dev *dev = devid;
+	uint32_t status = readl(dev->base + ISR_OFFSET);
+
+	if ((status & ~ISR_RESERVED_MASK) == 0)
+		return IRQ_NONE;
+
+	/* Must flush the TX FIFO when NAK detected */
+	if (status & ISR_NOACK_MASK)
+		writel(TXFCR_FIFO_FLUSH_MASK | TXFCR_FIFO_EN_MASK,
+		       dev->base + TXFCR_OFFSET);
+
+	writel(status & ~ISR_RESERVED_MASK, dev->base + ISR_OFFSET);
+	complete_all(&dev->done);
+
+	return IRQ_HANDLED;
+}
+
+/* Wait for ISR_CMDBUSY_MASK to go low before writing to CS, DAT, or RCD */
+static int bcm_kona_i2c_wait_if_busy(struct bcm_kona_i2c_dev *dev)
+{
+	unsigned long timeout = jiffies + msecs_to_jiffies(I2C_TIMEOUT);
+
+	while (readl(dev->base + ISR_OFFSET) & ISR_CMDBUSY_MASK)
+		if (time_after(jiffies, timeout)) {
+			dev_err(dev->device, "CMDBUSY timeout\n");
+			return -ETIMEDOUT;
+		}
+
+	return 0;
+}
+
+/* Send command to I2C bus */
+static int bcm_kona_send_i2c_cmd(struct bcm_kona_i2c_dev *dev,
+				 enum bcm_kona_cmd_t cmd)
+{
+	int rc;
+	unsigned long time_left = msecs_to_jiffies(I2C_TIMEOUT);
+
+	/* Make sure the hardware is ready */
+	rc = bcm_kona_i2c_wait_if_busy(dev);
+	if (rc < 0)
+		return rc;
+
+	/* Unmask the session done interrupt */
+	writel(IER_I2C_INT_EN_MASK, dev->base + IER_OFFSET);
+
+	/* Mark as incomplete before sending the command */
+	INIT_COMPLETION(dev->done);
+
+	/* Send the command */
+	bcm_kona_i2c_send_cmd_to_ctrl(dev, cmd);
+
+	/* Wait for transaction to finish or timeout */
+	time_left = wait_for_completion_timeout(&dev->done, time_left);
+
+	/* Mask all interrupts */
+	writel(0, dev->base + IER_OFFSET);
+
+	if (!time_left) {
+		dev_err(dev->device, "controller timed out\n");
+		rc = -ETIMEDOUT;
+	}
+
+	/* Clear command */
+	bcm_kona_i2c_send_cmd_to_ctrl(dev, BCM_CMD_NOACTION);
+
+	return rc;
+}
+
+/* Read a single RX FIFO worth of data from the i2c bus */
+static int bcm_kona_i2c_read_fifo_single(struct bcm_kona_i2c_dev *dev,
+					 uint8_t *buf, unsigned int len,
+					 unsigned int last_byte_nak)
+{
+	unsigned long time_left = msecs_to_jiffies(I2C_TIMEOUT);
+
+	/* Mark as incomplete before starting the RX FIFO */
+	INIT_COMPLETION(dev->done);
+
+	/* Unmask the read complete interrupt */
+	writel(IER_READ_COMPLETE_INT_MASK, dev->base + IER_OFFSET);
+
+	/* Start the RX FIFO */
+	writel((last_byte_nak << RXFCR_NACK_EN_SHIFT) |
+	       (len << RXFCR_READ_COUNT_SHIFT),
+		dev->base + RXFCR_OFFSET);
+
+	/* Wait for FIFO read to complete */
+	time_left = wait_for_completion_timeout(&dev->done, time_left);
+
+	/* Mask all interrupts */
+	writel(0, dev->base + IER_OFFSET);
+
+	if (!time_left) {
+		dev_err(dev->device, "RX FIFO time out\n");
+		return -EREMOTEIO;
+	}
+
+	/* Read data from FIFO */
+	for (; len > 0; len--, buf++)
+		*buf = readl(dev->base + RXFIFORDOUT_OFFSET);
+
+	return 0;
+}
+
+/* Read any amount of data using the RX FIFO from the i2c bus */
+static int bcm_kona_i2c_read_fifo(struct bcm_kona_i2c_dev *dev,
+				  struct i2c_msg *msg)
+{
+	unsigned int bytes_to_read = MAX_RX_FIFO_SIZE;
+	unsigned int last_byte_nak = 0;
+	unsigned int bytes_read = 0;
+	int rc;
+
+	uint8_t *tmp_buf = msg->buf;
+
+	while (bytes_read < msg->len) {
+		if (msg->len - bytes_read <= MAX_RX_FIFO_SIZE) {
+			last_byte_nak = 1; /* NAK last byte of transfer */
+			bytes_to_read = msg->len - bytes_read;
+		}
+
+		rc = bcm_kona_i2c_read_fifo_single(dev, tmp_buf, bytes_to_read,
+						   last_byte_nak);
+		if (rc < 0)
+			return -EREMOTEIO;
+
+		bytes_read += bytes_to_read;
+		tmp_buf += bytes_to_read;
+	}
+
+	return 0;
+}
+
+/* Write a single byte of data to the i2c bus */
+static int bcm_kona_i2c_write_byte(struct bcm_kona_i2c_dev *dev, uint8_t data,
+				   unsigned int nak_expected)
+{
+	int rc;
+	unsigned long time_left = msecs_to_jiffies(I2C_TIMEOUT);
+	unsigned int nak_received;
+
+	/* Make sure the hardware is ready */
+	rc = bcm_kona_i2c_wait_if_busy(dev);
+	if (rc < 0)
+		return rc;
+
+	/* Clear pending session done interrupt */
+	writel(ISR_SES_DONE_MASK, dev->base + ISR_OFFSET);
+
+	/* Unmask the session done interrupt */
+	writel(IER_I2C_INT_EN_MASK, dev->base + IER_OFFSET);
+
+	/* Mark as incomplete before sending the data */
+	INIT_COMPLETION(dev->done);
+
+	/* Send one byte of data */
+	writel(data, dev->base + DAT_OFFSET);
+
+	/* Wait for byte to be written */
+	time_left = wait_for_completion_timeout(&dev->done, time_left);
+
+	/* Mask all interrupts */
+	writel(0, dev->base + IER_OFFSET);
+
+	if (!time_left) {
+		dev_dbg(dev->device, "controller timed out\n");
+		return -ETIMEDOUT;
+	}
+
+	nak_received = readl(dev->base + CS_OFFSET) & CS_ACK_MASK ? 1 : 0;
+
+	if (nak_received ^ nak_expected) {
+		dev_dbg(dev->device, "unexpected NAK/ACK\n");
+		return -EREMOTEIO;
+	}
+
+	return 0;
+}
+
+/* Write a single TX FIFO worth of data to the i2c bus */
+static int bcm_kona_i2c_write_fifo_single(struct bcm_kona_i2c_dev *dev,
+					  uint8_t *buf, unsigned int len)
+{
+	int k;
+	unsigned long time_left = msecs_to_jiffies(I2C_TIMEOUT);
+	unsigned int fifo_status;
+
+	/* Mark as incomplete before sending data to the TX FIFO */
+	INIT_COMPLETION(dev->done);
+
+	/* Unmask the fifo empty and nak interrupt */
+	writel(IER_FIFO_INT_EN_MASK | IER_NOACK_EN_MASK,
+	       dev->base + IER_OFFSET);
+
+	/* Disable IRQ to load a FIFO worth of data without interruption */
+	disable_irq(dev->irq);
+
+	/* Write data into FIFO */
+	for (k = 0; k < len; k++)
+		writel(buf[k], (dev->base + DAT_OFFSET));
+
+	/* Enable IRQ now that data has been loaded */
+	enable_irq(dev->irq);
+
+	/* Wait for FIFO to empty */
+	do {
+		time_left = wait_for_completion_timeout(&dev->done, time_left);
+		fifo_status = readl(dev->base + FIFO_STATUS_OFFSET);
+	} while (time_left && !(fifo_status & FIFO_STATUS_TXFIFO_EMPTY_MASK));
+
+	/* Mask all interrupts */
+	writel(0, dev->base + IER_OFFSET);
+
+	/* Check if there was a NAK */
+	if (readl(dev->base + CS_OFFSET) & CS_ACK_MASK) {
+		dev_err(dev->device, "unexpected NAK\n");
+		return -EREMOTEIO;
+	}
+
+	/* Check if a timeout occured */
+	if (!time_left) {
+		dev_err(dev->device, "completion timed out\n");
+		return -EREMOTEIO;
+	}
+
+	return 0;
+}
+
+
+/* Write any amount of data using TX FIFO to the i2c bus */
+static int bcm_kona_i2c_write_fifo(struct bcm_kona_i2c_dev *dev,
+				   struct i2c_msg *msg)
+{
+	unsigned int bytes_to_write = MAX_TX_FIFO_SIZE;
+	unsigned int bytes_written = 0;
+	int rc;
+
+	uint8_t *tmp_buf = msg->buf;
+
+	while (bytes_written < msg->len) {
+		if (msg->len - bytes_written <= MAX_TX_FIFO_SIZE)
+			bytes_to_write = msg->len - bytes_written;
+
+		rc = bcm_kona_i2c_write_fifo_single(dev, tmp_buf,
+						    bytes_to_write);
+		if (rc < 0)
+			return -EREMOTEIO;
+
+		bytes_written += bytes_to_write;
+		tmp_buf += bytes_to_write;
+	}
+
+	return 0;
+}
+
+/* Send i2c address */
+static int bcm_kona_i2c_do_addr(struct bcm_kona_i2c_dev *dev,
+				     struct i2c_msg *msg)
+{
+	unsigned char addr;
+
+	if (msg->flags & I2C_M_TEN) {
+		/* First byte is 11110XX0 where XX is upper 2 bits */
+		addr = 0xF0 | ((msg->addr & 0x300) >> 7);
+		if (bcm_kona_i2c_write_byte(dev, addr, 0) < 0)
+			return -EREMOTEIO;
+
+		/* Second byte is the remaining 8 bits */
+		addr = msg->addr & 0xFF;
+		if (bcm_kona_i2c_write_byte(dev, addr, 0) < 0)
+			return -EREMOTEIO;
+
+		if (msg->flags & I2C_M_RD) {
+			/* For read, send restart command */
+			if (bcm_kona_send_i2c_cmd(dev, BCM_CMD_RESTART) < 0)
+				return -EREMOTEIO;
+
+			/* Then re-send the first byte with the read bit set */
+			addr = 0xF0 | ((msg->addr & 0x300) >> 7) | 0x01;
+			if (bcm_kona_i2c_write_byte(dev, addr, 0) < 0)
+				return -EREMOTEIO;
+		}
+	} else {
+		addr = msg->addr << 1;
+
+		if (msg->flags & I2C_M_RD)
+			addr |= 1;
+
+		if (bcm_kona_i2c_write_byte(dev, addr, 0) < 0)
+			return -EREMOTEIO;
+	}
+
+	return 0;
+}
+
+static void bcm_kona_i2c_enable_autosense(struct bcm_kona_i2c_dev *dev)
+{
+	writel(readl(dev->base + CLKEN_OFFSET) & ~CLKEN_AUTOSENSE_OFF_MASK,
+	       dev->base + CLKEN_OFFSET);
+}
+
+static void bcm_kona_i2c_config_timing(struct bcm_kona_i2c_dev *dev)
+{
+	writel(readl(dev->base + HSTIM_OFFSET) & ~HSTIM_HS_MODE_MASK,
+	       dev->base + HSTIM_OFFSET);
+
+	writel((dev->std_cfg->prescale << TIM_PRESCALE_SHIFT) |
+	       (dev->std_cfg->time_p << TIM_P_SHIFT) |
+	       (dev->std_cfg->no_div << TIM_NO_DIV_SHIFT) |
+	       (dev->std_cfg->time_div	<< TIM_DIV_SHIFT),
+	       dev->base + TIM_OFFSET);
+
+	writel((dev->std_cfg->time_m << CLKEN_M_SHIFT) |
+	       (dev->std_cfg->time_n << CLKEN_N_SHIFT) |
+	       CLKEN_CLKEN_MASK,
+	       dev->base + CLKEN_OFFSET);
+}
+
+static void bcm_kona_i2c_config_timing_hs(struct bcm_kona_i2c_dev *dev)
+{
+	writel((dev->hs_cfg->prescale << TIM_PRESCALE_SHIFT) |
+	       (dev->hs_cfg->time_p << TIM_P_SHIFT) |
+	       (dev->hs_cfg->no_div << TIM_NO_DIV_SHIFT) |
+	       (dev->hs_cfg->time_div << TIM_DIV_SHIFT),
+	       dev->base + TIM_OFFSET);
+
+	writel((dev->hs_cfg->hs_hold << HSTIM_HS_HOLD_SHIFT) |
+	       (dev->hs_cfg->hs_high_phase << HSTIM_HS_HIGH_PHASE_SHIFT) |
+	       (dev->hs_cfg->hs_setup << HSTIM_HS_SETUP_SHIFT),
+	       dev->base + HSTIM_OFFSET);
+
+	writel(readl(dev->base + HSTIM_OFFSET) | HSTIM_HS_MODE_MASK,
+	       dev->base + HSTIM_OFFSET);
+}
+
+static int bcm_kona_i2c_switch_to_hs(struct bcm_kona_i2c_dev *dev)
+{
+	int rc;
+
+	/* Send mastercode at standard speed */
+	rc = bcm_kona_i2c_write_byte(dev, MASTERCODE, 1);
+	if (rc < 0) {
+		pr_err("High speed handshake failed\n");
+		return rc;
+	}
+
+	/* Configure external clock to higher frequency */
+	rc = clk_set_rate(dev->external_clk, HS_EXT_CLK_FREQ);
+	if (rc) {
+		dev_err(dev->device, "%s: clk_set_rate returned %d\n",
+			__func__, rc);
+		return rc;
+	}
+
+	/* Reconfigure internal dividers */
+	bcm_kona_i2c_config_timing_hs(dev);
+
+	/* Send a restart command */
+	rc = bcm_kona_send_i2c_cmd(dev, BCM_CMD_RESTART);
+	if (rc < 0)
+		dev_err(dev->device, "High speed restart command failed\n");
+
+	return rc;
+}
+
+static int bcm_kona_i2c_switch_to_std(struct bcm_kona_i2c_dev *dev)
+{
+	int rc;
+
+	/* Reconfigure internal dividers */
+	bcm_kona_i2c_config_timing(dev);
+
+	/* Configure external clock to lower frequency */
+	rc = clk_set_rate(dev->external_clk, STD_EXT_CLK_FREQ);
+	if (rc) {
+		dev_err(dev->device, "%s: clk_set_rate returned %d\n",
+			__func__, rc);
+	}
+
+	return rc;
+}
+
+/* Master transfer function */
+static int bcm_kona_i2c_xfer(struct i2c_adapter *adapter,
+			     struct i2c_msg msgs[], int num)
+{
+	struct bcm_kona_i2c_dev *dev = i2c_get_adapdata(adapter);
+	struct i2c_msg *pmsg;
+	int rc = 0;
+	int i;
+
+	rc = clk_prepare_enable(dev->external_clk);
+	if (rc) {
+		dev_err(dev->device, "%s: peri clock enable failed. err %d\n",
+			__func__, rc);
+		return rc;
+	}
+
+	/* Enable pad output */
+	writel(0, dev->base + PADCTL_OFFSET);
+
+	/* Enable internal clocks */
+	bcm_kona_i2c_enable_clock(dev);
+
+	/* Send start command */
+	rc = bcm_kona_send_i2c_cmd(dev, BCM_CMD_START);
+	if (rc < 0) {
+		dev_err(dev->device, "Start command failed rc = %d\n", rc);
+		goto xfer_disable_pad;
+	}
+
+	/* Switch to high speed if applicable */
+	if (dev->hs_cfg) {
+		rc = bcm_kona_i2c_switch_to_hs(dev);
+		if (rc < 0)
+			goto xfer_send_stop;
+	}
+
+	/* Loop through all messages */
+	for (i = 0; i < num; i++) {
+		pmsg = &msgs[i];
+
+		/* Send restart for subsequent messages */
+		if ((i != 0) && ((pmsg->flags & I2C_M_NOSTART) == 0)) {
+			rc = bcm_kona_send_i2c_cmd(dev, BCM_CMD_RESTART);
+			if (rc < 0) {
+				dev_err(dev->device,
+					"restart cmd failed rc = %d\n", rc);
+					goto xfer_send_stop;
+			}
+		}
+
+		/* Send slave address */
+		if (!(pmsg->flags & I2C_M_NOSTART)) {
+			rc = bcm_kona_i2c_do_addr(dev, pmsg);
+			if (rc < 0) {
+				dev_err(dev->device,
+					"NAK from addr %2.2x msg#%d rc = %d\n",
+					pmsg->addr, i, rc);
+				goto xfer_send_stop;
+			}
+		}
+
+		/* Perform data transfer */
+		if (pmsg->flags & I2C_M_RD) {
+			rc = bcm_kona_i2c_read_fifo(dev, pmsg);
+			if (rc < 0) {
+				dev_err(dev->device, "read failure\n");
+				goto xfer_send_stop;
+			}
+		} else {
+			rc = bcm_kona_i2c_write_fifo(dev, pmsg);
+			if (rc < 0) {
+				dev_err(dev->device, "write failure");
+				goto xfer_send_stop;
+			}
+		}
+	}
+
+	rc = num;
+
+xfer_send_stop:
+	/* Send a STOP command */
+	bcm_kona_send_i2c_cmd(dev, BCM_CMD_STOP);
+
+	/* Return from high speed if applicable */
+	if (dev->hs_cfg) {
+		int hs_rc = bcm_kona_i2c_switch_to_std(dev);
+
+		if (hs_rc)
+			rc = hs_rc;
+	}
+
+xfer_disable_pad:
+	/* Disable pad output */
+	writel(PADCTL_PAD_OUT_EN_MASK, dev->base + PADCTL_OFFSET);
+
+	/* Stop internal clock */
+	bcm_kona_i2c_disable_clock(dev);
+
+	clk_disable_unprepare(dev->external_clk);
+
+	return rc;
+}
+
+static uint32_t bcm_kona_i2c_functionality(struct i2c_adapter *adap)
+{
+	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL | I2C_FUNC_10BIT_ADDR |
+	    I2C_FUNC_NOSTART;
+}
+
+static const struct i2c_algorithm bcm_algo = {
+	.master_xfer = bcm_kona_i2c_xfer,
+	.functionality = bcm_kona_i2c_functionality,
+};
+
+static int bcm_kona_i2c_assign_bus_speed(struct bcm_kona_i2c_dev *dev)
+{
+	unsigned int bus_speed;
+	int ret = of_property_read_u32(dev->device->of_node, "clock-frequency",
+				       &bus_speed);
+	if (ret < 0) {
+		dev_err(dev->device, "missing clock-frequency property\n");
+		return -ENODEV;
+	}
+
+	switch (bus_speed) {
+	case 100000:
+		dev->std_cfg = &std_cfg_table[BCM_SPD_100K];
+		break;
+	case 400000:
+		dev->std_cfg = &std_cfg_table[BCM_SPD_400K];
+		break;
+	case 1000000:
+		dev->std_cfg = &std_cfg_table[BCM_SPD_1MHZ];
+		break;
+	case 3400000:
+		/* Send mastercode at 100k */
+		dev->std_cfg = &std_cfg_table[BCM_SPD_100K];
+		dev->hs_cfg = &hs_cfg_table[BCM_SPD_3P4MHZ];
+		break;
+	default:
+		pr_err("%d hz bus speed not supported\n", bus_speed);
+		pr_err("Valid speeds are 100khz, 400khz, 1mhz, and 3.4mhz\n");
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int bcm_kona_i2c_probe(struct platform_device *pdev)
+{
+	int rc = 0;
+	struct bcm_kona_i2c_dev *dev;
+	struct i2c_adapter *adap;
+	struct resource *iomem;
+
+	/* Allocate memory for private data structure */
+	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, dev);
+	dev->device = &pdev->dev;
+	init_completion(&dev->done);
+
+	/* Map hardware registers */
+	iomem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	dev->base = devm_ioremap_resource(dev->device, iomem);
+	if (IS_ERR(dev->base))
+		return -ENOMEM;
+
+	/* Get and enable external clock */
+	dev->external_clk = devm_clk_get(dev->device, NULL);
+	if (IS_ERR(dev->external_clk)) {
+		dev_err(dev->device, "couldn't get clock\n");
+		return -ENODEV;
+	}
+
+	rc = clk_set_rate(dev->external_clk, STD_EXT_CLK_FREQ);
+	if (rc) {
+		dev_err(dev->device, "%s: clk_set_rate returned %d\n",
+			__func__, rc);
+		return rc;
+	}
+
+	rc = clk_prepare_enable(dev->external_clk);
+	if (rc) {
+		dev_err(dev->device, "couldn't enable clock\n");
+		return rc;
+	}
+
+	/* Parse bus speed */
+	if (bcm_kona_i2c_assign_bus_speed(dev))
+		goto probe_disable_clk;
+
+	/* Enable internal clocks */
+	bcm_kona_i2c_enable_clock(dev);
+
+	/* Configure internal dividers */
+	bcm_kona_i2c_config_timing(dev);
+
+	/* Disable timeout */
+	writel(0, dev->base + TOUT_OFFSET);
+
+	/* Enable autosense */
+	bcm_kona_i2c_enable_autosense(dev);
+
+	/* Enable TX FIFO */
+	writel(TXFCR_FIFO_FLUSH_MASK | TXFCR_FIFO_EN_MASK,
+	       dev->base + TXFCR_OFFSET);
+
+	/* Mask all interrupts */
+	writel(0, dev->base + IER_OFFSET);
+
+	/* Clear all pending interrupts */
+	writel(ISR_CMDBUSY_MASK |
+	       ISR_READ_COMPLETE_MASK |
+	       ISR_SES_DONE_MASK |
+	       ISR_ERR_MASK |
+	       ISR_TXFIFOEMPTY_MASK |
+	       ISR_NOACK_MASK,
+	       dev->base + ISR_OFFSET);
+
+	/* Get the interrupt number */
+	dev->irq = platform_get_irq(pdev, 0);
+	if (dev->irq < 0) {
+		dev_err(dev->device, "no irq resource\n");
+		rc = -ENODEV;
+		goto probe_disable_clk;
+	}
+
+	/* register the ISR handler */
+	rc = devm_request_irq(&pdev->dev, dev->irq, bcm_kona_i2c_isr,
+			      IRQF_SHARED, pdev->name, dev);
+	if (rc) {
+		dev_err(dev->device, "failed to request irq %i\n", dev->irq);
+		goto probe_disable_clk;
+	}
+
+	/* Enable the controller but leave it idle */
+	bcm_kona_i2c_send_cmd_to_ctrl(dev, BCM_CMD_NOACTION);
+
+	/* Disable pad output */
+	writel(PADCTL_PAD_OUT_EN_MASK, dev->base + PADCTL_OFFSET);
+
+	/* Disable internal clock */
+	bcm_kona_i2c_disable_clock(dev);
+
+	/* Disable external clock */
+	clk_disable_unprepare(dev->external_clk);
+
+	/* Add the i2c adapter */
+	adap = &dev->adapter;
+	i2c_set_adapdata(adap, dev);
+	adap->owner = THIS_MODULE;
+	strlcpy(adap->name, "Broadcom I2C adapter", sizeof(adap->name));
+	adap->algo = &bcm_algo;
+	adap->dev.parent = &pdev->dev;
+	adap->dev.of_node = pdev->dev.of_node;
+
+	rc = i2c_add_adapter(adap);
+	if (rc) {
+		dev_err(dev->device, "failed to add adapter\n");
+		return rc;
+	}
+
+	dev_info(dev->device, "device registered successfully\n");
+
+	return 0;
+
+probe_disable_clk:
+	bcm_kona_i2c_disable_clock(dev);
+	clk_disable_unprepare(dev->external_clk);
+
+	return rc;
+}
+
+static int bcm_kona_i2c_remove(struct platform_device *pdev)
+{
+	struct bcm_kona_i2c_dev *dev = platform_get_drvdata(pdev);
+
+	i2c_del_adapter(&dev->adapter);
+
+	return 0;
+}
+
+static const struct of_device_id bcm_kona_i2c_of_match[] = {
+	{.compatible = "brcm,kona-i2c",},
+	{},
+};
+MODULE_DEVICE_TABLE(of, kona_i2c_of_match);
+
+static struct platform_driver bcm_kona_i2c_driver = {
+	.driver = {
+		   .name = "bcm-kona-i2c",
+		   .owner = THIS_MODULE,
+		   .of_match_table = bcm_kona_i2c_of_match,
+		   },
+	.probe = bcm_kona_i2c_probe,
+	.remove = bcm_kona_i2c_remove,
+};
+module_platform_driver(bcm_kona_i2c_driver);
+
+MODULE_AUTHOR("Tim Kryger <tkryger@broadcom.com>");
+MODULE_DESCRIPTION("Broadcom Kona I2C Driver");
+MODULE_LICENSE("GPL v2");
-- 
cgit 


From be9eac48274a2d9b142d6dd8567b9b2362939346 Mon Sep 17 00:00:00 2001
From: Michal Kubeček <mkubecek@suse.cz>
Date: Fri, 15 Nov 2013 06:18:40 +0100
Subject: macvlan: introduce macvlan_dev_real_dev() helper function

Introduce helper function macvlan_dev_real_dev which returns the
underlying device of a macvlan device, similar to vlan_dev_real_dev()
for 802.1q VLAN devices.

v2: IFF_MACVLAN flag and equivalent of is_macvlan_dev() were
introduced in the meantime

v3: do BUG() if compiled without macvlan support

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/if_macvlan.h | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/include/linux/if_macvlan.h b/include/linux/if_macvlan.h
index c2702856295e..84ba5ac39e03 100644
--- a/include/linux/if_macvlan.h
+++ b/include/linux/if_macvlan.h
@@ -119,4 +119,21 @@ extern int macvlan_link_register(struct rtnl_link_ops *ops);
 extern netdev_tx_t macvlan_start_xmit(struct sk_buff *skb,
 				      struct net_device *dev);
 
+#if IS_ENABLED(CONFIG_MACVLAN)
+static inline struct net_device *
+macvlan_dev_real_dev(const struct net_device *dev)
+{
+	struct macvlan_dev *macvlan = netdev_priv(dev);
+
+	return macvlan->lowerdev;
+}
+#else
+static inline struct net_device *
+macvlan_dev_real_dev(const struct net_device *dev)
+{
+	BUG();
+	return NULL;
+}
+#endif
+
 #endif /* _LINUX_IF_MACVLAN_H */
-- 
cgit 


From 529d04895446f02449077a4ff49185b593283e19 Mon Sep 17 00:00:00 2001
From: Michal Kubeček <mkubecek@suse.cz>
Date: Fri, 15 Nov 2013 06:18:50 +0100
Subject: macvlan: disable LRO on lower device instead of macvlan

A macvlan device has always LRO disabled so that calling
dev_disable_lro() on it does nothing. If we need to disable LRO
e.g. because

  - the macvlan device is inserted into a bridge
  - IPv6 forwarding is enabled for it
  - it is in a different namespace than lowerdev and IPv4
    forwarding is enabled in it

we need to disable LRO on its underlying device instead (as we
do for 802.1q VLAN devices).

v2: use newly introduced netif_is_macvlan()

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/dev.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/net/core/dev.c b/net/core/dev.c
index 974143d3e727..7e00a7342ee6 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -131,6 +131,7 @@
 #include <linux/static_key.h>
 #include <linux/hashtable.h>
 #include <linux/vmalloc.h>
+#include <linux/if_macvlan.h>
 
 #include "net-sysfs.h"
 
@@ -1424,6 +1425,10 @@ void dev_disable_lro(struct net_device *dev)
 	if (is_vlan_dev(dev))
 		dev = vlan_dev_real_dev(dev);
 
+	/* the same for macvlan devices */
+	if (netif_is_macvlan(dev))
+		dev = macvlan_dev_real_dev(dev);
+
 	dev->wanted_features &= ~NETIF_F_LRO;
 	netdev_update_features(dev);
 
-- 
cgit 


From 1e7a2e219ab6bc57ed901485a0d0be85235ebe61 Mon Sep 17 00:00:00 2001
From: Daniel Mack <zonque@gmail.com>
Date: Fri, 15 Nov 2013 08:29:16 +0100
Subject: net: ethernet: ti/cpsw: do not crash on single-MAC machines during
 resume

During resume, use for_each_slave to walk the slaves of the cpsw, and
soft-reset each of them. This prevents oopses if there is only one
slave configured.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Mugunthan V N <mugunthanvnm@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/ti/cpsw.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 30b0c032e5fc..7536a4c01293 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -967,14 +967,19 @@ static inline void cpsw_add_dual_emac_def_ale_entries(
 		priv->host_port, ALE_VLAN, slave->port_vlan);
 }
 
-static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv)
+static void soft_reset_slave(struct cpsw_slave *slave)
 {
 	char name[32];
-	u32 slave_port;
-
-	sprintf(name, "slave-%d", slave->slave_num);
 
+	snprintf(name, sizeof(name), "slave-%d", slave->slave_num);
 	soft_reset(name, &slave->sliver->soft_reset);
+}
+
+static void cpsw_slave_open(struct cpsw_slave *slave, struct cpsw_priv *priv)
+{
+	u32 slave_port;
+
+	soft_reset_slave(slave);
 
 	/* setup priority mapping */
 	__raw_writel(RX_PRIORITY_MAPPING, &slave->sliver->rx_pri_map);
@@ -2171,8 +2176,9 @@ static int cpsw_suspend(struct device *dev)
 
 	if (netif_running(ndev))
 		cpsw_ndo_stop(ndev);
-	soft_reset("sliver 0", &priv->slaves[0].sliver->soft_reset);
-	soft_reset("sliver 1", &priv->slaves[1].sliver->soft_reset);
+
+	for_each_slave(priv, soft_reset_slave);
+
 	pm_runtime_put_sync(&pdev->dev);
 
 	/* Select sleep pin state */
-- 
cgit 


From aae467c79b14db0d286764ed9ddbaefe3715ebd2 Mon Sep 17 00:00:00 2001
From: "lan,Tianyu" <tianyu.lan@intel.com>
Date: Fri, 15 Nov 2013 13:54:01 +0800
Subject: cpufreq: governor: Remove fossil comment in the
 cpufreq_governor_dbs()

The related code has been changed and the comment is out of date.
So remove it.

Signed-off-by: Lan Tianyu <tianyu.lan@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq_governor.c | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/drivers/cpufreq/cpufreq_governor.c b/drivers/cpufreq/cpufreq_governor.c
index 0806c31e5764..e6be63561fa6 100644
--- a/drivers/cpufreq/cpufreq_governor.c
+++ b/drivers/cpufreq/cpufreq_governor.c
@@ -328,10 +328,6 @@ int cpufreq_governor_dbs(struct cpufreq_policy *policy,
 					     dbs_data->cdata->gov_dbs_timer);
 		}
 
-		/*
-		 * conservative does not implement micro like ondemand
-		 * governor, thus we are bound to jiffes/HZ
-		 */
 		if (dbs_data->cdata->governor == GOV_CONSERVATIVE) {
 			cs_dbs_info->down_skip = 0;
 			cs_dbs_info->enable = 1;
-- 
cgit 


From 052e31281575b2894aad09672bd9ac435488ff04 Mon Sep 17 00:00:00 2001
From: Petko Manolov <petkan@nucleusys.com>
Date: Fri, 15 Nov 2013 11:51:54 +0200
Subject: MAINTAINERS: Update Pegasus and RTL8150 repositories;

The diff is against latest 'net' repository;

Signed-off-by: Petko Manolov <petkan@nucleusys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 MAINTAINERS | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index afba90c456e7..2295783f8d38 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -8920,8 +8920,8 @@ USB PEGASUS DRIVER
 M:	Petko Manolov <petkan@nucleusys.com>
 L:	linux-usb@vger.kernel.org
 L:	netdev@vger.kernel.org
-T:	git git://git.code.sf.net/p/pegasus2/git
-W:	http://pegasus2.sourceforge.net/
+T:	git git://github.com/petkan/pegasus.git
+W:	https://github.com/petkan/pegasus
 S:	Maintained
 F:	drivers/net/usb/pegasus.*
 
@@ -8942,8 +8942,8 @@ USB RTL8150 DRIVER
 M:	Petko Manolov <petkan@nucleusys.com>
 L:	linux-usb@vger.kernel.org
 L:	netdev@vger.kernel.org
-T:	git git://git.code.sf.net/p/pegasus2/git
-W:	http://pegasus2.sourceforge.net/
+T:	git git://github.com/petkan/rtl8150.git
+W:	https://github.com/petkan/rtl8150
 S:	Maintained
 F:	drivers/net/usb/rtl8150.c
 
-- 
cgit 


From 568508aa0724cc39bcf7d3d8001bd27a45609800 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Fri, 15 Nov 2013 14:19:08 +0100
Subject: genetlink: unify registration functions

Now that the ops assignment is just two variables rather than a
long list iteration etc., there's no reason to separately export
__genl_register_family() and __genl_register_family_with_ops().

Unify the two functions into __genl_register_family() and make
genl_register_family_with_ops() call it after assigning the ops.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/genetlink.h | 28 ++++++++++++++++++++++----
 net/netlink/genetlink.c | 53 +++++++++++++++----------------------------------
 2 files changed, 40 insertions(+), 41 deletions(-)

diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 0b6a144468c6..e96385d46b48 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -131,14 +131,34 @@ static inline int genl_register_family(struct genl_family *family)
 	return __genl_register_family(family);
 }
 
-int __genl_register_family_with_ops(struct genl_family *family,
-				    const struct genl_ops *ops, size_t n_ops);
-
+/**
+ * genl_register_family_with_ops - register a generic netlink family with ops
+ * @family: generic netlink family
+ * @ops: operations to be registered
+ * @n_ops: number of elements to register
+ *
+ * Registers the specified family and operations from the specified table.
+ * Only one family may be registered with the same family name or identifier.
+ *
+ * The family id may equal GENL_ID_GENERATE causing an unique id to
+ * be automatically generated and assigned.
+ *
+ * Either a doit or dumpit callback must be specified for every registered
+ * operation or the function will fail. Only one operation structure per
+ * command identifier may be registered.
+ *
+ * See include/net/genetlink.h for more documenation on the operations
+ * structure.
+ *
+ * Return 0 on success or a negative error code.
+ */
 static inline int genl_register_family_with_ops(struct genl_family *family,
 	const struct genl_ops *ops, size_t n_ops)
 {
 	family->module = THIS_MODULE;
-	return __genl_register_family_with_ops(family, ops, n_ops);
+	family->ops = ops;
+	family->n_ops = n_ops;
+	return __genl_register_family(family);
 }
 
 int genl_unregister_family(struct genl_family *family);
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index a7c62d3d05a1..f07eb568a1db 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -283,12 +283,18 @@ static void genl_unregister_mc_groups(struct genl_family *family)
 		__genl_unregister_mc_group(family, grp);
 }
 
-static int genl_validate_add_ops(struct genl_family *family,
-				 const struct genl_ops *ops,
-				 unsigned int n_ops)
+static int genl_validate_ops(struct genl_family *family)
 {
+	const struct genl_ops *ops = family->ops;
+	unsigned int n_ops = family->n_ops;
 	int i, j;
 
+	if (WARN_ON(n_ops && !ops))
+		return -EINVAL;
+
+	if (!n_ops)
+		return 0;
+
 	for (i = 0; i < n_ops; i++) {
 		if (ops[i].dumpit == NULL && ops[i].doit == NULL)
 			return -EINVAL;
@@ -313,6 +319,9 @@ static int genl_validate_add_ops(struct genl_family *family,
  * The family id may equal GENL_ID_GENERATE causing an unique id to
  * be automatically generated and assigned.
  *
+ * The family's ops array must already be assigned, you can use the
+ * genl_register_family_with_ops() helper function.
+ *
  * Return 0 on success or a negative error code.
  */
 int __genl_register_family(struct genl_family *family)
@@ -325,6 +334,10 @@ int __genl_register_family(struct genl_family *family)
 	if (family->id > GENL_MAX_ID)
 		goto errout;
 
+	err = genl_validate_ops(family);
+	if (err)
+		return err;
+
 	INIT_LIST_HEAD(&family->mcast_groups);
 
 	genl_lock_all();
@@ -372,40 +385,6 @@ errout:
 }
 EXPORT_SYMBOL(__genl_register_family);
 
-/**
- * __genl_register_family_with_ops - register a generic netlink family
- * @family: generic netlink family
- * @ops: operations to be registered
- * @n_ops: number of elements to register
- *
- * Registers the specified family and operations from the specified table.
- * Only one family may be registered with the same family name or identifier.
- *
- * The family id may equal GENL_ID_GENERATE causing an unique id to
- * be automatically generated and assigned.
- *
- * Either a doit or dumpit callback must be specified for every registered
- * operation or the function will fail. Only one operation structure per
- * command identifier may be registered.
- *
- * See include/net/genetlink.h for more documenation on the operations
- * structure.
- *
- * Return 0 on success or a negative error code.
- */
-int __genl_register_family_with_ops(struct genl_family *family,
-	const struct genl_ops *ops, size_t n_ops)
-{
-	int err;
-
-	err = genl_validate_add_ops(family, ops, n_ops);
-	if (err)
-		return err;
-
-	return __genl_register_family(family);
-}
-EXPORT_SYMBOL(__genl_register_family_with_ops);
-
 /**
  * genl_unregister_family - unregister generic netlink family
  * @family: generic netlink family
-- 
cgit 


From 65c5189a2b57b9aa1d89e4b79da39928257c9505 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 15 Nov 2013 08:57:26 -0800
Subject: pkt_sched: fq: warn users using defrate

Commit 7eec4174ff29 ("pkt_sched: fq: fix non TCP flows pacing")
obsoleted TCA_FQ_FLOW_DEFAULT_RATE without notice for the users.

Suggested by David Miller

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/uapi/linux/pkt_sched.h |  4 +---
 net/sched/sch_fq.c             | 10 ++++------
 2 files changed, 5 insertions(+), 9 deletions(-)

diff --git a/include/uapi/linux/pkt_sched.h b/include/uapi/linux/pkt_sched.h
index 307f293477e8..885001b62c83 100644
--- a/include/uapi/linux/pkt_sched.h
+++ b/include/uapi/linux/pkt_sched.h
@@ -763,9 +763,7 @@ enum {
 
 	TCA_FQ_RATE_ENABLE,	/* enable/disable rate limiting */
 
-	TCA_FQ_FLOW_DEFAULT_RATE,/* for sockets with unspecified sk_rate,
-				  * use the following rate
-				  */
+	TCA_FQ_FLOW_DEFAULT_RATE,/* obsolete, do not use */
 
 	TCA_FQ_FLOW_MAX_RATE,	/* per flow max rate */
 
diff --git a/net/sched/sch_fq.c b/net/sched/sch_fq.c
index d4fa38e4af80..26906ab51c52 100644
--- a/net/sched/sch_fq.c
+++ b/net/sched/sch_fq.c
@@ -88,7 +88,6 @@ struct fq_sched_data {
 	struct fq_flow	internal;	/* for non classified or high prio packets */
 	u32		quantum;
 	u32		initial_quantum;
-	u32		flow_default_rate;/* rate per flow : bytes per second */
 	u32		flow_max_rate;	/* optional max rate per flow */
 	u32		flow_plimit;	/* max packets per flow */
 	struct rb_root	*fq_root;
@@ -650,7 +649,8 @@ static int fq_change(struct Qdisc *sch, struct nlattr *opt)
 		q->initial_quantum = nla_get_u32(tb[TCA_FQ_INITIAL_QUANTUM]);
 
 	if (tb[TCA_FQ_FLOW_DEFAULT_RATE])
-		q->flow_default_rate = nla_get_u32(tb[TCA_FQ_FLOW_DEFAULT_RATE]);
+		pr_warn_ratelimited("sch_fq: defrate %u ignored.\n",
+				    nla_get_u32(tb[TCA_FQ_FLOW_DEFAULT_RATE]));
 
 	if (tb[TCA_FQ_FLOW_MAX_RATE])
 		q->flow_max_rate = nla_get_u32(tb[TCA_FQ_FLOW_MAX_RATE]);
@@ -699,7 +699,6 @@ static int fq_init(struct Qdisc *sch, struct nlattr *opt)
 	q->flow_plimit		= 100;
 	q->quantum		= 2 * psched_mtu(qdisc_dev(sch));
 	q->initial_quantum	= 10 * psched_mtu(qdisc_dev(sch));
-	q->flow_default_rate	= 0;
 	q->flow_max_rate	= ~0U;
 	q->rate_enable		= 1;
 	q->new_flows.first	= NULL;
@@ -726,9 +725,8 @@ static int fq_dump(struct Qdisc *sch, struct sk_buff *skb)
 	if (opts == NULL)
 		goto nla_put_failure;
 
-	/* TCA_FQ_FLOW_DEFAULT_RATE is not used anymore,
-	 * do not bother giving its value
-	 */
+	/* TCA_FQ_FLOW_DEFAULT_RATE is not used anymore */
+
 	if (nla_put_u32(skb, TCA_FQ_PLIMIT, sch->limit) ||
 	    nla_put_u32(skb, TCA_FQ_FLOW_PLIMIT, q->flow_plimit) ||
 	    nla_put_u32(skb, TCA_FQ_QUANTUM, q->quantum) ||
-- 
cgit 


From f52ed89971adbe79b6438c459814034707b8ab91 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Fri, 15 Nov 2013 08:58:14 -0800
Subject: pkt_sched: fq: fix pacing for small frames
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

For performance reasons, sch_fq tried hard to not setup timers for every
sent packet, using a quantum based heuristic : A delay is setup only if
the flow exhausted its credit.

Problem is that application limited flows can refill their credit
for every queued packet, and they can evade pacing.

This problem can also be triggered when TCP flows use small MSS values,
as TSO auto sizing builds packets that are smaller than the default fq
quantum (3028 bytes)

This patch adds a 40 ms delay to guard flow credit refill.

Fixes: afe4fd062416 ("pkt_sched: fq: Fair Queue packet scheduler")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Maciej Żenczykowski <maze@google.com>
Cc: Willem de Bruijn <willemb@google.com>
Cc: Yuchung Cheng <ycheng@google.com>
Cc: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/uapi/linux/pkt_sched.h |  3 +++
 net/sched/sch_fq.c             | 22 ++++++++++++++++++----
 2 files changed, 21 insertions(+), 4 deletions(-)

diff --git a/include/uapi/linux/pkt_sched.h b/include/uapi/linux/pkt_sched.h
index 885001b62c83..a806687ad98f 100644
--- a/include/uapi/linux/pkt_sched.h
+++ b/include/uapi/linux/pkt_sched.h
@@ -768,6 +768,9 @@ enum {
 	TCA_FQ_FLOW_MAX_RATE,	/* per flow max rate */
 
 	TCA_FQ_BUCKETS_LOG,	/* log2(number of buckets) */
+
+	TCA_FQ_FLOW_REFILL_DELAY,	/* flow credit refill delay in usec */
+
 	__TCA_FQ_MAX
 };
 
diff --git a/net/sched/sch_fq.c b/net/sched/sch_fq.c
index 26906ab51c52..95d843961907 100644
--- a/net/sched/sch_fq.c
+++ b/net/sched/sch_fq.c
@@ -88,6 +88,7 @@ struct fq_sched_data {
 	struct fq_flow	internal;	/* for non classified or high prio packets */
 	u32		quantum;
 	u32		initial_quantum;
+	u32		flow_refill_delay;
 	u32		flow_max_rate;	/* optional max rate per flow */
 	u32		flow_plimit;	/* max packets per flow */
 	struct rb_root	*fq_root;
@@ -114,6 +115,7 @@ static struct fq_flow detached, throttled;
 static void fq_flow_set_detached(struct fq_flow *f)
 {
 	f->next = &detached;
+	f->age = jiffies;
 }
 
 static bool fq_flow_is_detached(const struct fq_flow *f)
@@ -366,17 +368,20 @@ static int fq_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 	}
 
 	f->qlen++;
-	flow_queue_add(f, skb);
 	if (skb_is_retransmit(skb))
 		q->stat_tcp_retrans++;
 	sch->qstats.backlog += qdisc_pkt_len(skb);
 	if (fq_flow_is_detached(f)) {
 		fq_flow_add_tail(&q->new_flows, f);
-		if (q->quantum > f->credit)
-			f->credit = q->quantum;
+		if (time_after(jiffies, f->age + q->flow_refill_delay))
+			f->credit = max_t(u32, f->credit, q->quantum);
 		q->inactive_flows--;
 		qdisc_unthrottled(sch);
 	}
+
+	/* Note: this overwrites f->age */
+	flow_queue_add(f, skb);
+
 	if (unlikely(f == &q->internal)) {
 		q->stat_internal_packets++;
 		qdisc_unthrottled(sch);
@@ -454,7 +459,6 @@ begin:
 			fq_flow_add_tail(&q->old_flows, f);
 		} else {
 			fq_flow_set_detached(f);
-			f->age = jiffies;
 			q->inactive_flows++;
 		}
 		goto begin;
@@ -608,6 +612,7 @@ static const struct nla_policy fq_policy[TCA_FQ_MAX + 1] = {
 	[TCA_FQ_FLOW_DEFAULT_RATE]	= { .type = NLA_U32 },
 	[TCA_FQ_FLOW_MAX_RATE]		= { .type = NLA_U32 },
 	[TCA_FQ_BUCKETS_LOG]		= { .type = NLA_U32 },
+	[TCA_FQ_FLOW_REFILL_DELAY]	= { .type = NLA_U32 },
 };
 
 static int fq_change(struct Qdisc *sch, struct nlattr *opt)
@@ -664,6 +669,12 @@ static int fq_change(struct Qdisc *sch, struct nlattr *opt)
 			err = -EINVAL;
 	}
 
+	if (tb[TCA_FQ_FLOW_REFILL_DELAY]) {
+		u32 usecs_delay = nla_get_u32(tb[TCA_FQ_FLOW_REFILL_DELAY]) ;
+
+		q->flow_refill_delay = usecs_to_jiffies(usecs_delay);
+	}
+
 	if (!err)
 		err = fq_resize(q, fq_log);
 
@@ -699,6 +710,7 @@ static int fq_init(struct Qdisc *sch, struct nlattr *opt)
 	q->flow_plimit		= 100;
 	q->quantum		= 2 * psched_mtu(qdisc_dev(sch));
 	q->initial_quantum	= 10 * psched_mtu(qdisc_dev(sch));
+	q->flow_refill_delay	= msecs_to_jiffies(40);
 	q->flow_max_rate	= ~0U;
 	q->rate_enable		= 1;
 	q->new_flows.first	= NULL;
@@ -733,6 +745,8 @@ static int fq_dump(struct Qdisc *sch, struct sk_buff *skb)
 	    nla_put_u32(skb, TCA_FQ_INITIAL_QUANTUM, q->initial_quantum) ||
 	    nla_put_u32(skb, TCA_FQ_RATE_ENABLE, q->rate_enable) ||
 	    nla_put_u32(skb, TCA_FQ_FLOW_MAX_RATE, q->flow_max_rate) ||
+	    nla_put_u32(skb, TCA_FQ_FLOW_REFILL_DELAY,
+			jiffies_to_usecs(q->flow_refill_delay)) ||
 	    nla_put_u32(skb, TCA_FQ_BUCKETS_LOG, q->fq_trees_log))
 		goto nla_put_failure;
 
-- 
cgit 


From 018c5bba052b3a383d83cf0c756da0e7bc748397 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Fri, 15 Nov 2013 21:11:16 -0500
Subject: net: Handle CHECKSUM_COMPLETE more adequately in pskb_trim_rcsum().

Currently pskb_trim_rcsum() just balks on CHECKSUM_COMPLETE packets
and remarks them as CHECKSUM_NONE, forcing a software checksum
validation later.

We have all of the mechanics available to fixup the skb->csum value,
even for complicated fragmented packets, via the helpers
skb_checksum() and csum_sub().

So just use them.

Based upon a suggestion by Herbert Xu.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/linux/skbuff.h | 39 +++++++++++++++++++++------------------
 1 file changed, 21 insertions(+), 18 deletions(-)

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 215b5ea1cb30..bec1cc7d5e3c 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -2263,24 +2263,6 @@ static inline void skb_postpull_rcsum(struct sk_buff *skb,
 
 unsigned char *skb_pull_rcsum(struct sk_buff *skb, unsigned int len);
 
-/**
- *	pskb_trim_rcsum - trim received skb and update checksum
- *	@skb: buffer to trim
- *	@len: new length
- *
- *	This is exactly the same as pskb_trim except that it ensures the
- *	checksum of received packets are still valid after the operation.
- */
-
-static inline int pskb_trim_rcsum(struct sk_buff *skb, unsigned int len)
-{
-	if (likely(len >= skb->len))
-		return 0;
-	if (skb->ip_summed == CHECKSUM_COMPLETE)
-		skb->ip_summed = CHECKSUM_NONE;
-	return __pskb_trim(skb, len);
-}
-
 #define skb_queue_walk(queue, skb) \
 		for (skb = (queue)->next;					\
 		     skb != (struct sk_buff *)(queue);				\
@@ -2378,6 +2360,27 @@ __wsum __skb_checksum(const struct sk_buff *skb, int offset, int len,
 __wsum skb_checksum(const struct sk_buff *skb, int offset, int len,
 		    __wsum csum);
 
+/**
+ *	pskb_trim_rcsum - trim received skb and update checksum
+ *	@skb: buffer to trim
+ *	@len: new length
+ *
+ *	This is exactly the same as pskb_trim except that it ensures the
+ *	checksum of received packets are still valid after the operation.
+ */
+
+static inline int pskb_trim_rcsum(struct sk_buff *skb, unsigned int len)
+{
+	if (likely(len >= skb->len))
+		return 0;
+	if (skb->ip_summed == CHECKSUM_COMPLETE) {
+		__wsum adj = skb_checksum(skb, len, skb->len - len, 0);
+
+		skb->csum = csum_sub(skb->csum, adj);
+	}
+	return __pskb_trim(skb, len);
+}
+
 static inline void *skb_header_pointer(const struct sk_buff *skb, int offset,
 				       int len, void *buffer)
 {
-- 
cgit 


From b1d93356427be6f050dc55c86eb019d173700af6 Mon Sep 17 00:00:00 2001
From: Steve French <smfrench@gmail.com>
Date: Fri, 15 Nov 2013 20:41:32 -0600
Subject: setfacl removes part of ACL when setting POSIX ACLs to Samba

setfacl over cifs mounts can remove the default ACL when setting the
(non-default part of) the ACL and vice versa (we were leaving at 0
rather than setting to -1 the count field for the unaffected
half of the ACL.  For example notice the setfacl removed
the default ACL in this sequence:

steven@steven-GA-970A-DS3:~/cifs-2.6$ getfacl /mnt/test-dir ; setfacl
-m default:user:test:rwx,user:test:rwx /mnt/test-dir
getfacl: Removing leading '/' from absolute path names
user::rwx
group::r-x
other::r-x
default:user::rwx
default:user:test:rwx
default:group::r-x
default:mask::rwx
default:other::r-x

steven@steven-GA-970A-DS3:~/cifs-2.6$ getfacl /mnt/test-dir
getfacl: Removing leading '/' from absolute path names
user::rwx
user:test:rwx
group::r-x
mask::rwx
other::r-x

CC: Stable <stable@kernel.org>
Signed-off-by: Steve French <smfrench@gmail.com>
Acked-by: Jeremy Allison <jra@samba.org>
---
 fs/cifs/cifssmb.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 93b29474714a..124aa0230c1b 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -3369,11 +3369,13 @@ static __u16 ACL_to_cifs_posix(char *parm_data, const char *pACL,
 		return 0;
 	}
 	cifs_acl->version = cpu_to_le16(1);
-	if (acl_type == ACL_TYPE_ACCESS)
+	if (acl_type == ACL_TYPE_ACCESS) {
 		cifs_acl->access_entry_count = cpu_to_le16(count);
-	else if (acl_type == ACL_TYPE_DEFAULT)
+		cifs_acl->default_entry_count = __constant_cpu_to_le16(0xFFFF);
+	} else if (acl_type == ACL_TYPE_DEFAULT) {
 		cifs_acl->default_entry_count = cpu_to_le16(count);
-	else {
+		cifs_acl->access_entry_count = __constant_cpu_to_le16(0xFFFF);
+	} else {
 		cifs_dbg(FYI, "unknown ACL type %d\n", acl_type);
 		return 0;
 	}
-- 
cgit 


From f63c4824aa1b745cf283453fd53385230307d8d1 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri, 15 Nov 2013 18:57:42 -0800
Subject: Don't try to compile shmobile-iommu outside of ARM

Commit 7d02c4d64dbb ("iommu/shmobile: Enable the driver on all ARM
platforms") completely brokenly enabled the shmobile-iommu driver under
COMPILE_TEST.

It's bogus, because it won't compile anywhere else than ARM, since it
tries to include <asm/dma-iommu.h>, which is very much ARM-only.

So remove the bogus COMPILE_TEST dependency, which just causes
allmodconfig to fail on non-ARM platforms.

Cc: Joerg Roedel <joro@8bytes.org>
Cc: iommu@lists.linux-foundation.org
Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Cc: Simon Horman <horms@verge.net.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/iommu/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 9fd51e51e78b..3e7fdbb4916b 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -206,7 +206,7 @@ config SHMOBILE_IPMMU_TLB
 config SHMOBILE_IOMMU
 	bool "IOMMU for Renesas IPMMU/IPMMUI"
 	default n
-	depends on ARM || COMPILE_TEST
+	depends on ARM
 	select IOMMU_API
 	select ARM_DMA_USE_IOMMU
 	select SHMOBILE_IPMMU
-- 
cgit 


From db51242d89b3059a46a3cf2f3339f8cd975cb954 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 15 Nov 2013 21:55:52 -0500
Subject: dump_align(): fix the dumb braino

Mea culpa - original variant used 64-by-32-bit division,
which got caught very late.  Getting rid of that wasn't
hard, but I'd managed to botch the calling conventions
in process ;-/

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/coredump.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/coredump.c b/fs/coredump.c
index 62406b6959b6..a2856f7bb613 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -733,7 +733,7 @@ int dump_align(struct coredump_params *cprm, int align)
 {
 	unsigned mod = cprm->written & (align - 1);
 	if (align & (align - 1))
-		return -EINVAL;
-	return mod ? dump_skip(cprm, align - mod) : 0;
+		return 0;
+	return mod ? dump_skip(cprm, align - mod) : 1;
 }
 EXPORT_SYMBOL(dump_align);
-- 
cgit 


From 52da40ae67f6192a3bf70a98cb560e1423554953 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 15 Nov 2013 21:58:33 -0500
Subject: dump_emit(): use __kernel_write(), not vfs_write()

the caller has already done file_start_write()...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/coredump.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/coredump.c b/fs/coredump.c
index a2856f7bb613..bc3fbcd32558 100644
--- a/fs/coredump.c
+++ b/fs/coredump.c
@@ -695,7 +695,7 @@ int dump_emit(struct coredump_params *cprm, const void *addr, int nr)
 	while (nr) {
 		if (dump_interrupted())
 			return 0;
-		n = vfs_write(file, addr, nr, &pos);
+		n = __kernel_write(file, addr, nr, &pos);
 		if (n <= 0)
 			return 0;
 		file->f_pos = pos;
-- 
cgit 


From 951b4bd553e35a291e6b5732ab0124619e81da05 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Sun, 2 Jun 2013 19:53:40 -0400
Subject: gfs2: endianness misannotations

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/gfs2/lock_dlm.c |  8 ++++----
 fs/gfs2/quota.c    | 23 ++++++++++-------------
 fs/gfs2/rgrp.c     |  4 ++--
 3 files changed, 16 insertions(+), 19 deletions(-)

diff --git a/fs/gfs2/lock_dlm.c b/fs/gfs2/lock_dlm.c
index c8423d6de6c3..2a6ba06bee6f 100644
--- a/fs/gfs2/lock_dlm.c
+++ b/fs/gfs2/lock_dlm.c
@@ -466,19 +466,19 @@ static void gdlm_cancel(struct gfs2_glock *gl)
 static void control_lvb_read(struct lm_lockstruct *ls, uint32_t *lvb_gen,
 			     char *lvb_bits)
 {
-	uint32_t gen;
+	__le32 gen;
 	memcpy(lvb_bits, ls->ls_control_lvb, GDLM_LVB_SIZE);
-	memcpy(&gen, lvb_bits, sizeof(uint32_t));
+	memcpy(&gen, lvb_bits, sizeof(__le32));
 	*lvb_gen = le32_to_cpu(gen);
 }
 
 static void control_lvb_write(struct lm_lockstruct *ls, uint32_t lvb_gen,
 			      char *lvb_bits)
 {
-	uint32_t gen;
+	__le32 gen;
 	memcpy(ls->ls_control_lvb, lvb_bits, GDLM_LVB_SIZE);
 	gen = cpu_to_le32(lvb_gen);
-	memcpy(ls->ls_control_lvb, &gen, sizeof(uint32_t));
+	memcpy(ls->ls_control_lvb, &gen, sizeof(__le32));
 }
 
 static int all_jid_bits_clear(char *lvb)
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 453b50eaddec..98236d0df3ca 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -667,7 +667,7 @@ static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
 	struct buffer_head *bh;
 	struct page *page;
 	void *kaddr, *ptr;
-	struct gfs2_quota q, *qp;
+	struct gfs2_quota q;
 	int err, nbytes;
 	u64 size;
 
@@ -683,28 +683,25 @@ static int gfs2_adjust_quota(struct gfs2_inode *ip, loff_t loc,
 		return err;
 
 	err = -EIO;
-	qp = &q;
-	qp->qu_value = be64_to_cpu(qp->qu_value);
-	qp->qu_value += change;
-	qp->qu_value = cpu_to_be64(qp->qu_value);
-	qd->qd_qb.qb_value = qp->qu_value;
+	be64_add_cpu(&q.qu_value, change);
+	qd->qd_qb.qb_value = q.qu_value;
 	if (fdq) {
 		if (fdq->d_fieldmask & FS_DQ_BSOFT) {
-			qp->qu_warn = cpu_to_be64(fdq->d_blk_softlimit >> sdp->sd_fsb2bb_shift);
-			qd->qd_qb.qb_warn = qp->qu_warn;
+			q.qu_warn = cpu_to_be64(fdq->d_blk_softlimit >> sdp->sd_fsb2bb_shift);
+			qd->qd_qb.qb_warn = q.qu_warn;
 		}
 		if (fdq->d_fieldmask & FS_DQ_BHARD) {
-			qp->qu_limit = cpu_to_be64(fdq->d_blk_hardlimit >> sdp->sd_fsb2bb_shift);
-			qd->qd_qb.qb_limit = qp->qu_limit;
+			q.qu_limit = cpu_to_be64(fdq->d_blk_hardlimit >> sdp->sd_fsb2bb_shift);
+			qd->qd_qb.qb_limit = q.qu_limit;
 		}
 		if (fdq->d_fieldmask & FS_DQ_BCOUNT) {
-			qp->qu_value = cpu_to_be64(fdq->d_bcount >> sdp->sd_fsb2bb_shift);
-			qd->qd_qb.qb_value = qp->qu_value;
+			q.qu_value = cpu_to_be64(fdq->d_bcount >> sdp->sd_fsb2bb_shift);
+			qd->qd_qb.qb_value = q.qu_value;
 		}
 	}
 
 	/* Write the quota into the quota file on disk */
-	ptr = qp;
+	ptr = &q;
 	nbytes = sizeof(struct gfs2_quota);
 get_a_page:
 	page = find_or_create_page(mapping, index, GFP_NOFS);
diff --git a/fs/gfs2/rgrp.c b/fs/gfs2/rgrp.c
index 4d83abdd5635..c8d6161bd682 100644
--- a/fs/gfs2/rgrp.c
+++ b/fs/gfs2/rgrp.c
@@ -1127,7 +1127,7 @@ int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd)
 		rgd->rd_flags |= (GFS2_RDF_UPTODATE | GFS2_RDF_CHECK);
 		rgd->rd_free_clone = rgd->rd_free;
 	}
-	if (be32_to_cpu(GFS2_MAGIC) != rgd->rd_rgl->rl_magic) {
+	if (cpu_to_be32(GFS2_MAGIC) != rgd->rd_rgl->rl_magic) {
 		rgd->rd_rgl->rl_unlinked = cpu_to_be32(count_unlinked(rgd));
 		gfs2_rgrp_ondisk2lvb(rgd->rd_rgl,
 				     rgd->rd_bits[0].bi_bh->b_data);
@@ -1161,7 +1161,7 @@ int update_rgrp_lvb(struct gfs2_rgrpd *rgd)
 	if (rgd->rd_flags & GFS2_RDF_UPTODATE)
 		return 0;
 
-	if (be32_to_cpu(GFS2_MAGIC) != rgd->rd_rgl->rl_magic)
+	if (cpu_to_be32(GFS2_MAGIC) != rgd->rd_rgl->rl_magic)
 		return gfs2_rgrp_bh_get(rgd);
 
 	rl_flags = be32_to_cpu(rgd->rd_rgl->rl_flags);
-- 
cgit 


From b26d4cd385fc51e8844e2cdf9ba2051f5bba11a5 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 25 Oct 2013 18:47:37 -0400
Subject: consolidate simple ->d_delete() instances

Rename simple_delete_dentry() to always_delete_dentry() and export it.
Export simple_dentry_operations, while we are at it, and get rid of
their duplicates

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 arch/ia64/kernel/perfmon.c |  8 +-------
 fs/9p/vfs_dentry.c         | 19 +------------------
 fs/configfs/dir.c          | 12 +-----------
 fs/efivarfs/super.c        | 11 +----------
 fs/hostfs/hostfs_kern.c    | 11 +----------
 fs/libfs.c                 | 12 +++++++-----
 fs/proc/generic.c          | 18 +-----------------
 fs/proc/namespaces.c       |  8 +-------
 include/linux/fs.h         |  2 ++
 kernel/cgroup.c            |  7 +------
 net/sunrpc/rpc_pipe.c      | 11 +----------
 11 files changed, 18 insertions(+), 101 deletions(-)

diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c
index 5a9ff1c3c3e9..cb592773c78b 100644
--- a/arch/ia64/kernel/perfmon.c
+++ b/arch/ia64/kernel/perfmon.c
@@ -2166,12 +2166,6 @@ static const struct file_operations pfm_file_ops = {
 	.flush		= pfm_flush
 };
 
-static int
-pfmfs_delete_dentry(const struct dentry *dentry)
-{
-	return 1;
-}
-
 static char *pfmfs_dname(struct dentry *dentry, char *buffer, int buflen)
 {
 	return dynamic_dname(dentry, buffer, buflen, "pfm:[%lu]",
@@ -2179,7 +2173,7 @@ static char *pfmfs_dname(struct dentry *dentry, char *buffer, int buflen)
 }
 
 static const struct dentry_operations pfmfs_dentry_operations = {
-	.d_delete = pfmfs_delete_dentry,
+	.d_delete = always_delete_dentry,
 	.d_dname = pfmfs_dname,
 };
 
diff --git a/fs/9p/vfs_dentry.c b/fs/9p/vfs_dentry.c
index f039b104a98e..b03dd23feda8 100644
--- a/fs/9p/vfs_dentry.c
+++ b/fs/9p/vfs_dentry.c
@@ -42,23 +42,6 @@
 #include "v9fs_vfs.h"
 #include "fid.h"
 
-/**
- * v9fs_dentry_delete - called when dentry refcount equals 0
- * @dentry:  dentry in question
- *
- * By returning 1 here we should remove cacheing of unused
- * dentry components.
- *
- */
-
-static int v9fs_dentry_delete(const struct dentry *dentry)
-{
-	p9_debug(P9_DEBUG_VFS, " dentry: %s (%p)\n",
-		 dentry->d_name.name, dentry);
-
-	return 1;
-}
-
 /**
  * v9fs_cached_dentry_delete - called when dentry refcount equals 0
  * @dentry:  dentry in question
@@ -134,6 +117,6 @@ const struct dentry_operations v9fs_cached_dentry_operations = {
 };
 
 const struct dentry_operations v9fs_dentry_operations = {
-	.d_delete = v9fs_dentry_delete,
+	.d_delete = always_delete_dentry,
 	.d_release = v9fs_dentry_release,
 };
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index 277bd1be21fd..4522e0755773 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -66,19 +66,9 @@ static void configfs_d_iput(struct dentry * dentry,
 	iput(inode);
 }
 
-/*
- * We _must_ delete our dentries on last dput, as the chain-to-parent
- * behavior is required to clear the parents of default_groups.
- */
-static int configfs_d_delete(const struct dentry *dentry)
-{
-	return 1;
-}
-
 const struct dentry_operations configfs_dentry_ops = {
 	.d_iput		= configfs_d_iput,
-	/* simple_delete_dentry() isn't exported */
-	.d_delete	= configfs_d_delete,
+	.d_delete	= always_delete_dentry,
 };
 
 #ifdef CONFIG_LOCKDEP
diff --git a/fs/efivarfs/super.c b/fs/efivarfs/super.c
index a8766b880c07..becc725a1953 100644
--- a/fs/efivarfs/super.c
+++ b/fs/efivarfs/super.c
@@ -83,19 +83,10 @@ static int efivarfs_d_hash(const struct dentry *dentry, struct qstr *qstr)
 	return 0;
 }
 
-/*
- * Retaining negative dentries for an in-memory filesystem just wastes
- * memory and lookup time: arrange for them to be deleted immediately.
- */
-static int efivarfs_delete_dentry(const struct dentry *dentry)
-{
-	return 1;
-}
-
 static struct dentry_operations efivarfs_d_ops = {
 	.d_compare = efivarfs_d_compare,
 	.d_hash = efivarfs_d_hash,
-	.d_delete = efivarfs_delete_dentry,
+	.d_delete = always_delete_dentry,
 };
 
 static struct dentry *efivarfs_alloc_dentry(struct dentry *parent, char *name)
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 25437280a207..db23ce1bd903 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -33,15 +33,6 @@ static inline struct hostfs_inode_info *HOSTFS_I(struct inode *inode)
 
 #define FILE_HOSTFS_I(file) HOSTFS_I(file_inode(file))
 
-static int hostfs_d_delete(const struct dentry *dentry)
-{
-	return 1;
-}
-
-static const struct dentry_operations hostfs_dentry_ops = {
-	.d_delete		= hostfs_d_delete,
-};
-
 /* Changed in hostfs_args before the kernel starts running */
 static char *root_ino = "";
 static int append = 0;
@@ -925,7 +916,7 @@ static int hostfs_fill_sb_common(struct super_block *sb, void *d, int silent)
 	sb->s_blocksize_bits = 10;
 	sb->s_magic = HOSTFS_SUPER_MAGIC;
 	sb->s_op = &hostfs_sbops;
-	sb->s_d_op = &hostfs_dentry_ops;
+	sb->s_d_op = &simple_dentry_operations;
 	sb->s_maxbytes = MAX_LFS_FILESIZE;
 
 	/* NULL is printed as <NULL> by sprintf: avoid that. */
diff --git a/fs/libfs.c b/fs/libfs.c
index 5de06947ba5e..a1844244246f 100644
--- a/fs/libfs.c
+++ b/fs/libfs.c
@@ -47,10 +47,16 @@ EXPORT_SYMBOL(simple_statfs);
  * Retaining negative dentries for an in-memory filesystem just wastes
  * memory and lookup time: arrange for them to be deleted immediately.
  */
-static int simple_delete_dentry(const struct dentry *dentry)
+int always_delete_dentry(const struct dentry *dentry)
 {
 	return 1;
 }
+EXPORT_SYMBOL(always_delete_dentry);
+
+const struct dentry_operations simple_dentry_operations = {
+	.d_delete = always_delete_dentry,
+};
+EXPORT_SYMBOL(simple_dentry_operations);
 
 /*
  * Lookup the data. This is trivial - if the dentry didn't already
@@ -58,10 +64,6 @@ static int simple_delete_dentry(const struct dentry *dentry)
  */
 struct dentry *simple_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
 {
-	static const struct dentry_operations simple_dentry_operations = {
-		.d_delete = simple_delete_dentry,
-	};
-
 	if (dentry->d_name.len > NAME_MAX)
 		return ERR_PTR(-ENAMETOOLONG);
 	if (!dentry->d_sb->s_d_op)
diff --git a/fs/proc/generic.c b/fs/proc/generic.c
index 737e15615b04..cca93b6fb9a9 100644
--- a/fs/proc/generic.c
+++ b/fs/proc/generic.c
@@ -174,22 +174,6 @@ static const struct inode_operations proc_link_inode_operations = {
 	.follow_link	= proc_follow_link,
 };
 
-/*
- * As some entries in /proc are volatile, we want to 
- * get rid of unused dentries.  This could be made 
- * smarter: we could keep a "volatile" flag in the 
- * inode to indicate which ones to keep.
- */
-static int proc_delete_dentry(const struct dentry * dentry)
-{
-	return 1;
-}
-
-static const struct dentry_operations proc_dentry_operations =
-{
-	.d_delete	= proc_delete_dentry,
-};
-
 /*
  * Don't create negative dentries here, return -ENOENT by hand
  * instead.
@@ -209,7 +193,7 @@ struct dentry *proc_lookup_de(struct proc_dir_entry *de, struct inode *dir,
 			inode = proc_get_inode(dir->i_sb, de);
 			if (!inode)
 				return ERR_PTR(-ENOMEM);
-			d_set_d_op(dentry, &proc_dentry_operations);
+			d_set_d_op(dentry, &simple_dentry_operations);
 			d_add(dentry, inode);
 			return NULL;
 		}
diff --git a/fs/proc/namespaces.c b/fs/proc/namespaces.c
index 49a7fff2e83a..9ae46b87470d 100644
--- a/fs/proc/namespaces.c
+++ b/fs/proc/namespaces.c
@@ -42,12 +42,6 @@ static const struct inode_operations ns_inode_operations = {
 	.setattr	= proc_setattr,
 };
 
-static int ns_delete_dentry(const struct dentry *dentry)
-{
-	/* Don't cache namespace inodes when not in use */
-	return 1;
-}
-
 static char *ns_dname(struct dentry *dentry, char *buffer, int buflen)
 {
 	struct inode *inode = dentry->d_inode;
@@ -59,7 +53,7 @@ static char *ns_dname(struct dentry *dentry, char *buffer, int buflen)
 
 const struct dentry_operations ns_dentry_operations =
 {
-	.d_delete	= ns_delete_dentry,
+	.d_delete	= always_delete_dentry,
 	.d_dname	= ns_dname,
 };
 
diff --git a/include/linux/fs.h b/include/linux/fs.h
index bf5d574ebdf4..121f11f001c0 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2622,7 +2622,9 @@ extern int simple_write_begin(struct file *file, struct address_space *mapping,
 extern int simple_write_end(struct file *file, struct address_space *mapping,
 			loff_t pos, unsigned len, unsigned copied,
 			struct page *page, void *fsdata);
+extern int always_delete_dentry(const struct dentry *);
 extern struct inode *alloc_anon_inode(struct super_block *);
+extern const struct dentry_operations simple_dentry_operations;
 
 extern struct dentry *simple_lookup(struct inode *, struct dentry *, unsigned int flags);
 extern ssize_t generic_read_dir(struct file *, char __user *, size_t, loff_t *);
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index e0839bcd48c8..4c62513fe19f 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -895,11 +895,6 @@ static void cgroup_diput(struct dentry *dentry, struct inode *inode)
 	iput(inode);
 }
 
-static int cgroup_delete(const struct dentry *d)
-{
-	return 1;
-}
-
 static void remove_dir(struct dentry *d)
 {
 	struct dentry *parent = dget(d->d_parent);
@@ -1486,7 +1481,7 @@ static int cgroup_get_rootdir(struct super_block *sb)
 {
 	static const struct dentry_operations cgroup_dops = {
 		.d_iput = cgroup_diput,
-		.d_delete = cgroup_delete,
+		.d_delete = always_delete_dentry,
 	};
 
 	struct inode *inode =
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c
index d0d14a04dce1..bf04b30a788a 100644
--- a/net/sunrpc/rpc_pipe.c
+++ b/net/sunrpc/rpc_pipe.c
@@ -471,15 +471,6 @@ struct rpc_filelist {
 	umode_t mode;
 };
 
-static int rpc_delete_dentry(const struct dentry *dentry)
-{
-	return 1;
-}
-
-static const struct dentry_operations rpc_dentry_operations = {
-	.d_delete = rpc_delete_dentry,
-};
-
 static struct inode *
 rpc_get_inode(struct super_block *sb, umode_t mode)
 {
@@ -1266,7 +1257,7 @@ rpc_fill_super(struct super_block *sb, void *data, int silent)
 	sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
 	sb->s_magic = RPCAUTH_GSSMAGIC;
 	sb->s_op = &s_ops;
-	sb->s_d_op = &rpc_dentry_operations;
+	sb->s_d_op = &simple_dentry_operations;
 	sb->s_time_gran = 1;
 
 	inode = rpc_get_inode(sb, S_IFDIR | S_IRUGO | S_IXUGO);
-- 
cgit 


From 2bc74feba12fbf052ec97aee8624c9f13593a9ac Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 25 Oct 2013 16:39:14 -0400
Subject: take read_seqbegin_or_lock() and friends to seqlock.h

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/dcache.c             | 29 -----------------------------
 include/linux/seqlock.h | 29 +++++++++++++++++++++++++++++
 2 files changed, 29 insertions(+), 29 deletions(-)

diff --git a/fs/dcache.c b/fs/dcache.c
index 0a38ef8d7f00..667e23ab0b4c 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -88,35 +88,6 @@ EXPORT_SYMBOL(rename_lock);
 
 static struct kmem_cache *dentry_cache __read_mostly;
 
-/**
- * read_seqbegin_or_lock - begin a sequence number check or locking block
- * @lock: sequence lock
- * @seq : sequence number to be checked
- *
- * First try it once optimistically without taking the lock. If that fails,
- * take the lock. The sequence number is also used as a marker for deciding
- * whether to be a reader (even) or writer (odd).
- * N.B. seq must be initialized to an even number to begin with.
- */
-static inline void read_seqbegin_or_lock(seqlock_t *lock, int *seq)
-{
-	if (!(*seq & 1))	/* Even */
-		*seq = read_seqbegin(lock);
-	else			/* Odd */
-		read_seqlock_excl(lock);
-}
-
-static inline int need_seqretry(seqlock_t *lock, int seq)
-{
-	return !(seq & 1) && read_seqretry(lock, seq);
-}
-
-static inline void done_seqretry(seqlock_t *lock, int seq)
-{
-	if (seq & 1)
-		read_sequnlock_excl(lock);
-}
-
 /*
  * This is the single most critical data structure when it comes
  * to the dcache: the hashtable for lookups. Somebody should try
diff --git a/include/linux/seqlock.h b/include/linux/seqlock.h
index 1e8a8b6e837d..cf87a24c0f92 100644
--- a/include/linux/seqlock.h
+++ b/include/linux/seqlock.h
@@ -354,6 +354,35 @@ static inline void read_sequnlock_excl(seqlock_t *sl)
 	spin_unlock(&sl->lock);
 }
 
+/**
+ * read_seqbegin_or_lock - begin a sequence number check or locking block
+ * @lock: sequence lock
+ * @seq : sequence number to be checked
+ *
+ * First try it once optimistically without taking the lock. If that fails,
+ * take the lock. The sequence number is also used as a marker for deciding
+ * whether to be a reader (even) or writer (odd).
+ * N.B. seq must be initialized to an even number to begin with.
+ */
+static inline void read_seqbegin_or_lock(seqlock_t *lock, int *seq)
+{
+	if (!(*seq & 1))	/* Even */
+		*seq = read_seqbegin(lock);
+	else			/* Odd */
+		read_seqlock_excl(lock);
+}
+
+static inline int need_seqretry(seqlock_t *lock, int seq)
+{
+	return !(seq & 1) && read_seqretry(lock, seq);
+}
+
+static inline void done_seqretry(seqlock_t *lock, int seq)
+{
+	if (seq & 1)
+		read_sequnlock_excl(lock);
+}
+
 static inline void read_seqlock_excl_bh(seqlock_t *sl)
 {
 	spin_lock_bh(&sl->lock);
-- 
cgit 


From 482db9066199813d6b999b65a3171afdbec040b6 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 25 Oct 2013 16:41:01 -0400
Subject: dcache.c: get rid of pointless macros

D_HASH{MASK,BITS} are used once each, both in the same function (d_hash()).
At this point they are actively misguiding - they imply that values are
compiler constants, which is no longer true.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/dcache.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/fs/dcache.c b/fs/dcache.c
index 667e23ab0b4c..7f079d00475a 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -96,8 +96,6 @@ static struct kmem_cache *dentry_cache __read_mostly;
  * This hash-function tries to avoid losing too many bits of hash
  * information, yet avoid using a prime hash-size or similar.
  */
-#define D_HASHBITS     d_hash_shift
-#define D_HASHMASK     d_hash_mask
 
 static unsigned int d_hash_mask __read_mostly;
 static unsigned int d_hash_shift __read_mostly;
@@ -108,8 +106,8 @@ static inline struct hlist_bl_head *d_hash(const struct dentry *parent,
 					unsigned int hash)
 {
 	hash += (unsigned long) parent / L1_CACHE_BYTES;
-	hash = hash + (hash >> D_HASHBITS);
-	return dentry_hashtable + (hash & D_HASHMASK);
+	hash = hash + (hash >> d_hash_shift);
+	return dentry_hashtable + (hash & d_hash_mask);
 }
 
 /* Statistics gathering. */
-- 
cgit 


From 31dec1327e377b6d91a8a6c92b5cd8513939a233 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 25 Oct 2013 17:04:27 -0400
Subject: fold try_to_ascend() into the sole remaining caller

There used to be a bunch of tree-walkers in dcache.c, all alike.
try_to_ascend() had been introduced to abstract a piece of logics
duplicated in all of them.  These days all these tree-walkers are
implemented via the same iterator (d_walk()), which is the only
remaining caller of try_to_ascend(), so let's fold it back...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/dcache.c | 49 ++++++++++++++++++-------------------------------
 1 file changed, 18 insertions(+), 31 deletions(-)

diff --git a/fs/dcache.c b/fs/dcache.c
index 7f079d00475a..4bdb300b16e2 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -438,7 +438,7 @@ static struct dentry *d_kill(struct dentry *dentry, struct dentry *parent)
 {
 	list_del(&dentry->d_u.d_child);
 	/*
-	 * Inform try_to_ascend() that we are no longer attached to the
+	 * Inform d_walk() that we are no longer attached to the
 	 * dentry tree
 	 */
 	dentry->d_flags |= DCACHE_DENTRY_KILLED;
@@ -1038,34 +1038,6 @@ void shrink_dcache_sb(struct super_block *sb)
 }
 EXPORT_SYMBOL(shrink_dcache_sb);
 
-/*
- * This tries to ascend one level of parenthood, but
- * we can race with renaming, so we need to re-check
- * the parenthood after dropping the lock and check
- * that the sequence number still matches.
- */
-static struct dentry *try_to_ascend(struct dentry *old, unsigned seq)
-{
-	struct dentry *new = old->d_parent;
-
-	rcu_read_lock();
-	spin_unlock(&old->d_lock);
-	spin_lock(&new->d_lock);
-
-	/*
-	 * might go back up the wrong parent if we have had a rename
-	 * or deletion
-	 */
-	if (new != old->d_parent ||
-		 (old->d_flags & DCACHE_DENTRY_KILLED) ||
-		 need_seqretry(&rename_lock, seq)) {
-		spin_unlock(&new->d_lock);
-		new = NULL;
-	}
-	rcu_read_unlock();
-	return new;
-}
-
 /**
  * enum d_walk_ret - action to talke during tree walk
  * @D_WALK_CONTINUE:	contrinue walk
@@ -1154,9 +1126,24 @@ resume:
 	 */
 	if (this_parent != parent) {
 		struct dentry *child = this_parent;
-		this_parent = try_to_ascend(this_parent, seq);
-		if (!this_parent)
+		this_parent = child->d_parent;
+
+		rcu_read_lock();
+		spin_unlock(&child->d_lock);
+		spin_lock(&this_parent->d_lock);
+
+		/*
+		 * might go back up the wrong parent if we have had a rename
+		 * or deletion
+		 */
+		if (this_parent != child->d_parent ||
+			 (child->d_flags & DCACHE_DENTRY_KILLED) ||
+			 need_seqretry(&rename_lock, seq)) {
+			spin_unlock(&this_parent->d_lock);
+			rcu_read_unlock();
 			goto rename_retry;
+		}
+		rcu_read_unlock();
 		next = child->d_u.d_child.next;
 		goto resume;
 	}
-- 
cgit 


From 0cbaa53cdd33080c1e2d67ad9295b83c7954f2b3 Mon Sep 17 00:00:00 2001
From: Steve French <smfrench@gmail.com>
Date: Fri, 15 Nov 2013 23:50:24 -0600
Subject: [CIFS] Warn if SMB3 encryption required by server

We do not support SMB3 encryption yet, warn if server responds
that SMB3 encryption is mandatory.

Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/smb2pdu.c |  2 ++
 fs/cifs/smb2pdu.h | 18 ++++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index ca7f307ad97a..d65270c290a1 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -630,6 +630,8 @@ ssetup_ntlmssp_authenticate:
 		goto ssetup_exit;
 
 	ses->session_flags = le16_to_cpu(rsp->SessionFlags);
+	if (ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA)
+		cifs_dbg(VFS, "SMB3 encryption not supported yet\n");
 ssetup_exit:
 	free_rsp_buf(resp_buftype, rsp);
 
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index b50a129572cd..f88320bbb477 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -122,6 +122,23 @@ struct smb2_pdu {
 	__le16 StructureSize2; /* size of wct area (varies, request specific) */
 } __packed;
 
+struct smb2_transform_hdr {
+	__be32 smb2_buf_length;	/* big endian on wire */
+				/* length is only two or three bytes - with
+				 one or two byte type preceding it that MBZ */
+	__u8   ProtocolId[4];	/* 0xFD 'S' 'M' 'B' */
+	__u8   Signature[16];
+	__u8   Nonce[11];
+	__u8   Reserved[5];
+	__le32 OriginalMessageSize;
+	__u16  Reserved1;
+	__le16 EncryptionAlgorithm;
+	__u64  SessionId;
+} __packed;
+
+/* Encryption Algorithms */
+#define SMB2_ENCRYPTION_AES128_CCM	__constant_cpu_to_le16(0x0001)
+
 /*
  *	SMB2 flag definitions
  */
@@ -237,6 +254,7 @@ struct smb2_sess_setup_req {
 /* Currently defined SessionFlags */
 #define SMB2_SESSION_FLAG_IS_GUEST	0x0001
 #define SMB2_SESSION_FLAG_IS_NULL	0x0002
+#define SMB2_SESSION_FLAG_ENCRYPT_DATA	0x0004
 struct smb2_sess_setup_rsp {
 	struct smb2_hdr hdr;
 	__le16 StructureSize; /* Must be 9 */
-- 
cgit 


From 29c78f609e661e663a239a37923adb1d61f6386c Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sat, 16 Nov 2013 16:04:26 +0100
Subject: Partially revert "drm/i915: tune the RC6 threshold for stability"
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This reverts commit 351aa5666d02062b52329bcfe4bcf9d1f882fba9.

It breaks rc6 on at least one snb machine. Since we don't yet have a
report for ivb let's keep it there for now.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=71656
Cc: Stéphane Marchesin <marcheu@chromium.org>
Cc: erik@vontaene.de
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/i915/intel_pm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 0a07d7c9cafc..e41d3af9d3db 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -3888,7 +3888,7 @@ static void gen6_enable_rps(struct drm_device *dev)
 
 	I915_WRITE(GEN6_RC_SLEEP, 0);
 	I915_WRITE(GEN6_RC1e_THRESHOLD, 1000);
-	if (INTEL_INFO(dev)->gen <= 6 || IS_IVYBRIDGE(dev))
+	if (IS_IVYBRIDGE(dev))
 		I915_WRITE(GEN6_RC6_THRESHOLD, 125000);
 	else
 		I915_WRITE(GEN6_RC6_THRESHOLD, 50000);
-- 
cgit 


From ab626d1a68d1aee19a5c7d889b9fbeace6a92b41 Mon Sep 17 00:00:00 2001
From: Zhao Hongjiang <zhaohongjiang@huawei.com>
Date: Fri, 15 Nov 2013 14:16:37 -0800
Subject: IB/cm: Convert to using idr_alloc_cyclic()

Commit 3e6628c4b347 ("idr: introduce idr_alloc_cyclic()") adds a new
idr_alloc_cyclic() routine and converts several of these users to it.
This is just a missed one - add it.

Signed-off-by: Zhao Hongjiang <zhaohongjiang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/core/cm.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c
index 784b97cb05b0..f2ef7ef0f36f 100644
--- a/drivers/infiniband/core/cm.c
+++ b/drivers/infiniband/core/cm.c
@@ -383,14 +383,11 @@ static int cm_alloc_id(struct cm_id_private *cm_id_priv)
 {
 	unsigned long flags;
 	int id;
-	static int next_id;
 
 	idr_preload(GFP_KERNEL);
 	spin_lock_irqsave(&cm.lock, flags);
 
-	id = idr_alloc(&cm.local_id_table, cm_id_priv, next_id, 0, GFP_NOWAIT);
-	if (id >= 0)
-		next_id = max(id + 1, 0);
+	id = idr_alloc_cyclic(&cm.local_id_table, cm_id_priv, 0, 0, GFP_NOWAIT);
 
 	spin_unlock_irqrestore(&cm.lock, flags);
 	idr_preload_end();
-- 
cgit 


From f3a5e3e37e221d29ce611238a22ac61cf76c6614 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Tue, 22 Oct 2013 15:29:50 -0700
Subject: IB/ucma: Convert use of typedef ctl_table to struct ctl_table

This typedef is unnecessary and should just be removed.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/core/ucma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c
index b0f189be543b..3f93093632c2 100644
--- a/drivers/infiniband/core/ucma.c
+++ b/drivers/infiniband/core/ucma.c
@@ -57,7 +57,7 @@ MODULE_LICENSE("Dual BSD/GPL");
 static unsigned int max_backlog = 1024;
 
 static struct ctl_table_header *ucma_ctl_table_hdr;
-static ctl_table ucma_ctl_table[] = {
+static struct ctl_table ucma_ctl_table[] = {
 	{
 		.procname	= "max_backlog",
 		.data		= &max_backlog,
-- 
cgit 


From a47e5bb5764f029f989a182b0dd2d4cce69f8b14 Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@twiddle.net>
Date: Thu, 11 Jul 2013 09:47:45 -0700
Subject: alpha: Eliminate compiler warning from memset macro
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Compiling with GCC 4.8 yields several instances of

crypto/vmac.c: In function ‘vmac_final’:
crypto/vmac.c:616:9: warning: value computed is not used [-Wunused-value]
  memset(&mac, 0, sizeof(vmac_t));
         ^
arch/alpha/include/asm/string.h:31:25: note: in definition of macro ‘memset’
     ? __builtin_memset((s),0,(n))          \
                         ^
Converting the macro to an inline function eliminates this problem.

However, doing only that causes problems with the GCC 3.x series.  The
inline function cannot be named "memset", as otherwise we wind up with
recursion via __builtin_memset.  Solve this by adjusting the symbols
such that __memset is the inline, and ___memset is the real function.

Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 arch/alpha/include/asm/string.h | 24 ++++++++++++++++++------
 arch/alpha/kernel/alpha_ksyms.c |  1 +
 arch/alpha/lib/ev6-memset.S     | 12 +++++++-----
 arch/alpha/lib/memset.S         | 11 +++++++----
 4 files changed, 33 insertions(+), 15 deletions(-)

diff --git a/arch/alpha/include/asm/string.h b/arch/alpha/include/asm/string.h
index b02b8a282940..c2911f591704 100644
--- a/arch/alpha/include/asm/string.h
+++ b/arch/alpha/include/asm/string.h
@@ -22,15 +22,27 @@ extern void * __memcpy(void *, const void *, size_t);
 
 #define __HAVE_ARCH_MEMSET
 extern void * __constant_c_memset(void *, unsigned long, size_t);
+extern void * ___memset(void *, int, size_t);
 extern void * __memset(void *, int, size_t);
 extern void * memset(void *, int, size_t);
 
-#define memset(s, c, n)							    \
-(__builtin_constant_p(c)						    \
- ? (__builtin_constant_p(n) && (c) == 0					    \
-    ? __builtin_memset((s),0,(n)) 					    \
-    : __constant_c_memset((s),0x0101010101010101UL*(unsigned char)(c),(n))) \
- : __memset((s),(c),(n)))
+/* For gcc 3.x, we cannot have the inline function named "memset" because
+   the __builtin_memset will attempt to resolve to the inline as well,
+   leading to a "sorry" about unimplemented recursive inlining.  */
+extern inline void *__memset(void *s, int c, size_t n)
+{
+	if (__builtin_constant_p(c)) {
+		if (__builtin_constant_p(n)) {
+			return __builtin_memset(s, c, n);
+		} else {
+			unsigned long c8 = (c & 0xff) * 0x0101010101010101UL;
+			return __constant_c_memset(s, c8, n);
+		}
+	}
+	return ___memset(s, c, n);
+}
+
+#define memset __memset
 
 #define __HAVE_ARCH_STRCPY
 extern char * strcpy(char *,const char *);
diff --git a/arch/alpha/kernel/alpha_ksyms.c b/arch/alpha/kernel/alpha_ksyms.c
index 89566b346c0f..f4c7ab6f43b0 100644
--- a/arch/alpha/kernel/alpha_ksyms.c
+++ b/arch/alpha/kernel/alpha_ksyms.c
@@ -40,6 +40,7 @@ EXPORT_SYMBOL(strrchr);
 EXPORT_SYMBOL(memmove);
 EXPORT_SYMBOL(__memcpy);
 EXPORT_SYMBOL(__memset);
+EXPORT_SYMBOL(___memset);
 EXPORT_SYMBOL(__memsetw);
 EXPORT_SYMBOL(__constant_c_memset);
 EXPORT_SYMBOL(copy_page);
diff --git a/arch/alpha/lib/ev6-memset.S b/arch/alpha/lib/ev6-memset.S
index d8b94e1c7fca..356bb2fdd705 100644
--- a/arch/alpha/lib/ev6-memset.S
+++ b/arch/alpha/lib/ev6-memset.S
@@ -30,14 +30,15 @@
 	.set noat
 	.set noreorder
 .text
+	.globl memset
 	.globl __memset
+	.globl ___memset
 	.globl __memsetw
 	.globl __constant_c_memset
-	.globl memset
 
-	.ent __memset
+	.ent ___memset
 .align 5
-__memset:
+___memset:
 	.frame $30,0,$26,0
 	.prologue 0
 
@@ -227,7 +228,7 @@ end_b:
 	nop
 	nop
 	ret $31,($26),1		# L0 :
-	.end __memset
+	.end ___memset
 
 	/*
 	 * This is the original body of code, prior to replication and
@@ -594,4 +595,5 @@ end_w:
 
 	.end __memsetw
 
-memset = __memset
+memset = ___memset
+__memset = ___memset
diff --git a/arch/alpha/lib/memset.S b/arch/alpha/lib/memset.S
index 311b8cfc6914..76ccc6d1f364 100644
--- a/arch/alpha/lib/memset.S
+++ b/arch/alpha/lib/memset.S
@@ -19,11 +19,13 @@
 .text
 	.globl memset
 	.globl __memset
+	.globl ___memset
 	.globl __memsetw
 	.globl __constant_c_memset
-	.ent __memset
+
+	.ent ___memset
 .align 5
-__memset:
+___memset:
 	.frame $30,0,$26,0
 	.prologue 0
 
@@ -103,7 +105,7 @@ within_one_quad:
 
 end:
 	ret $31,($26),1		/* E1 */
-	.end __memset
+	.end ___memset
 
 	.align 5
 	.ent __memsetw
@@ -121,4 +123,5 @@ __memsetw:
 
 	.end __memsetw
 
-memset = __memset
+memset = ___memset
+__memset = ___memset
-- 
cgit 


From 994dcf7055df88623d25f3593b931a018a76b502 Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@twiddle.net>
Date: Thu, 28 Apr 2011 07:29:27 -0700
Subject: alpha: Notice if we're being run under QEMU

When building a generic kernel, do a run-time check on the serial
number, like we do for MILO.  When building a custom kernel, make
this a configure-time check.

Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 arch/alpha/Kconfig               | 14 ++++++++++++++
 arch/alpha/include/asm/machvec.h | 18 ++++++++++++------
 arch/alpha/kernel/setup.c        | 13 ++++++++++++-
 3 files changed, 38 insertions(+), 7 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 135c674eaf9e..51cc8c353164 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -488,6 +488,20 @@ config VGA_HOSE
 	  which always have multiple hoses, and whose consoles support it.
 
 
+config ALPHA_QEMU
+	bool "Run under QEMU emulation"
+	depends on !ALPHA_GENERIC
+	---help---
+	  Assume the presence of special features supported by QEMU PALcode
+	  that reduce the overhead of system emulation.
+
+	  Generic kernels will auto-detect QEMU.  But when building a
+	  system-specific kernel, the assumption is that we want to
+	  elimiate as many runtime tests as possible.
+
+	  If unsure, say N.
+
+
 config ALPHA_SRM
 	bool "Use SRM as bootloader" if ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_NAUTILUS || ALPHA_NONAME
 	depends on TTY
diff --git a/arch/alpha/include/asm/machvec.h b/arch/alpha/include/asm/machvec.h
index 72dbf2359270..4ac90167d346 100644
--- a/arch/alpha/include/asm/machvec.h
+++ b/arch/alpha/include/asm/machvec.h
@@ -126,13 +126,19 @@ extern struct alpha_machine_vector alpha_mv;
 
 #ifdef CONFIG_ALPHA_GENERIC
 extern int alpha_using_srm;
+extern int alpha_using_qemu;
 #else
-#ifdef CONFIG_ALPHA_SRM
-#define alpha_using_srm 1
-#else
-#define alpha_using_srm 0
-#endif
+# ifdef CONFIG_ALPHA_SRM
+#  define alpha_using_srm 1
+# else
+#  define alpha_using_srm 0
+# endif
+# ifdef CONFIG_ALPHA_QEMU
+#  define alpha_using_qemu 1
+# else
+#  define alpha_using_qemu 0
+# endif
 #endif /* GENERIC */
 
-#endif
+#endif /* __KERNEL__ */
 #endif /* __ALPHA_MACHVEC_H */
diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c
index 9e3107cc5ebb..c38d6a1b9066 100644
--- a/arch/alpha/kernel/setup.c
+++ b/arch/alpha/kernel/setup.c
@@ -115,10 +115,17 @@ unsigned long alpha_agpgart_size = DEFAULT_AGP_APER_SIZE;
 
 #ifdef CONFIG_ALPHA_GENERIC
 struct alpha_machine_vector alpha_mv;
+#endif
+
+#ifndef alpha_using_srm
 int alpha_using_srm;
 EXPORT_SYMBOL(alpha_using_srm);
 #endif
 
+#ifndef alpha_using_qemu
+int alpha_using_qemu;
+#endif
+
 static struct alpha_machine_vector *get_sysvec(unsigned long, unsigned long,
 					       unsigned long);
 static struct alpha_machine_vector *get_sysvec_byname(const char *);
@@ -529,11 +536,15 @@ setup_arch(char **cmdline_p)
 	atomic_notifier_chain_register(&panic_notifier_list,
 			&alpha_panic_block);
 
-#ifdef CONFIG_ALPHA_GENERIC
+#ifndef alpha_using_srm
 	/* Assume that we've booted from SRM if we haven't booted from MILO.
 	   Detect the later by looking for "MILO" in the system serial nr.  */
 	alpha_using_srm = strncmp((const char *)hwrpb->ssn, "MILO", 4) != 0;
 #endif
+#ifndef alpha_using_qemu
+	/* Similarly, look for QEMU.  */
+	alpha_using_qemu = strstr((const char *)hwrpb->ssn, "QEMU") != 0;
+#endif
 
 	/* If we are using SRM, we want to allow callbacks
 	   as early as possible, so do this NOW, and then
-- 
cgit 


From fddd87d6e135924b92499917bace103e46c22d00 Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@twiddle.net>
Date: Fri, 12 Jul 2013 16:15:56 -0700
Subject: alpha: Allow HZ to be configured

With the 1024Hz default, we spend 50% of QEMU emulation
processing timer interrupts.

Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 arch/alpha/Kconfig        | 36 ++++++++++++++++++++++++++++++++++--
 arch/alpha/kernel/setup.c | 10 ++++++++--
 arch/alpha/kernel/time.c  | 24 +++++++++++++++++-------
 3 files changed, 59 insertions(+), 11 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 51cc8c353164..a67b971c830a 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -627,9 +627,41 @@ config VERBOSE_MCHECK_ON
 
 	  Take the default (1) unless you want more control or more info.
 
+choice
+	prompt "Timer interrupt frequency (HZ)?"
+	default HZ_128 if ALPHA_QEMU
+	default HZ_1200 if ALPHA_RAWHIDE
+	default HZ_1024
+	---help---
+	  The frequency at which timer interrupts occur.  A high frequency
+	  minimizes latency, whereas a low frequency minimizes overhead of
+	  process accounting.  The later effect is especially significant
+	  when being run under QEMU.
+
+	  Note that some Alpha hardware cannot change the interrupt frequency
+	  of the timer.  If unsure, say 1024 (or 1200 for Rawhide).
+
+	config HZ_32
+		bool "32 Hz"
+	config HZ_64
+		bool "64 Hz"
+	config HZ_128
+		bool "128 Hz"
+	config HZ_256
+		bool "256 Hz"
+	config HZ_1024
+		bool "1024 Hz"
+	config HZ_1200
+		bool "1200 Hz"
+endchoice
+
 config HZ
-	int
-	default 1200 if ALPHA_RAWHIDE
+	int 
+	default 32 if HZ_32
+	default 64 if HZ_64
+	default 128 if HZ_128
+	default 256 if HZ_256
+	default 1200 if HZ_1200
 	default 1024
 
 source "drivers/pci/Kconfig"
diff --git a/arch/alpha/kernel/setup.c b/arch/alpha/kernel/setup.c
index c38d6a1b9066..b20af76f12c1 100644
--- a/arch/alpha/kernel/setup.c
+++ b/arch/alpha/kernel/setup.c
@@ -1218,6 +1218,7 @@ show_cpuinfo(struct seq_file *f, void *slot)
 	char *systype_name;
 	char *sysvariation_name;
 	int nr_processors;
+	unsigned long timer_freq;
 
 	cpu_index = (unsigned) (cpu->type - 1);
 	cpu_name = "Unknown";
@@ -1229,6 +1230,12 @@ show_cpuinfo(struct seq_file *f, void *slot)
 
 	nr_processors = get_nr_processors(cpu, hwrpb->nr_processors);
 
+#if CONFIG_HZ == 1024 || CONFIG_HZ == 1200
+	timer_freq = (100UL * hwrpb->intr_freq) / 4096;
+#else
+	timer_freq = 100UL * CONFIG_HZ;
+#endif
+
 	seq_printf(f, "cpu\t\t\t: Alpha\n"
 		      "cpu model\t\t: %s\n"
 		      "cpu variation\t\t: %ld\n"
@@ -1254,8 +1261,7 @@ show_cpuinfo(struct seq_file *f, void *slot)
 		       (char*)hwrpb->ssn,
 		       est_cycle_freq ? : hwrpb->cycle_freq,
 		       est_cycle_freq ? "est." : "",
-		       hwrpb->intr_freq / 4096,
-		       (100 * hwrpb->intr_freq / 4096) % 100,
+		       timer_freq / 100, timer_freq % 100,
 		       hwrpb->pagesize,
 		       hwrpb->pa_bits,
 		       hwrpb->max_asn,
diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c
index ea3395036556..a6bcb3113d81 100644
--- a/arch/alpha/kernel/time.c
+++ b/arch/alpha/kernel/time.c
@@ -201,16 +201,26 @@ irqreturn_t timer_interrupt(int irq, void *dev)
 void __init
 common_init_rtc(void)
 {
-	unsigned char x;
+	unsigned char x, sel = 0;
 
 	/* Reset periodic interrupt frequency.  */
-	x = CMOS_READ(RTC_FREQ_SELECT) & 0x3f;
-        /* Test includes known working values on various platforms
-           where 0x26 is wrong; we refuse to change those. */
-	if (x != 0x26 && x != 0x25 && x != 0x19 && x != 0x06) {
-		printk("Setting RTC_FREQ to 1024 Hz (%x)\n", x);
-		CMOS_WRITE(0x26, RTC_FREQ_SELECT);
+#if CONFIG_HZ == 1024 || CONFIG_HZ == 1200
+ 	x = CMOS_READ(RTC_FREQ_SELECT) & 0x3f;
+	/* Test includes known working values on various platforms
+	   where 0x26 is wrong; we refuse to change those. */
+ 	if (x != 0x26 && x != 0x25 && x != 0x19 && x != 0x06) {
+		sel = RTC_REF_CLCK_32KHZ + 6;
 	}
+#elif CONFIG_HZ == 256 || CONFIG_HZ == 128 || CONFIG_HZ == 64 || CONFIG_HZ == 32
+	sel = RTC_REF_CLCK_32KHZ + __builtin_ffs(32768 / CONFIG_HZ);
+#else
+# error "Unknown HZ from arch/alpha/Kconfig"
+#endif
+	if (sel) {
+		printk(KERN_INFO "Setting RTC_FREQ to %d Hz (%x)\n",
+		       CONFIG_HZ, sel);
+		CMOS_WRITE(sel, RTC_FREQ_SELECT);
+ 	}
 
 	/* Turn on periodic interrupts.  */
 	x = CMOS_READ(RTC_CONTROL);
-- 
cgit 


From 7f3bbb82e0c371d6881129f776c90130ba66f051 Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@twiddle.net>
Date: Fri, 12 Jul 2013 09:36:21 -0700
Subject: alpha: Primitive support for CPU power down.

Use WTINT to wait for the next interrupt.  Squash the WTINT call
if the PALcode doesn't support it (e.g. MILO).  No attempt is yet
made to skip clock ticks during normal scheduling in order to stay
in power down mode longer.

Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 arch/alpha/Kconfig                | 24 ++++++++++++++++++++++++
 arch/alpha/include/asm/pal.h      |  1 +
 arch/alpha/include/uapi/asm/pal.h |  1 +
 arch/alpha/kernel/process.c       | 17 +++++++++++++++++
 arch/alpha/kernel/traps.c         | 15 +++++++++++++++
 5 files changed, 58 insertions(+)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index a67b971c830a..f9e84da49716 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -586,6 +586,30 @@ config NUMA
 	  Access).  This option is for configuring high-end multiprocessor
 	  server machines.  If in doubt, say N.
 
+config ALPHA_WTINT
+	bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC
+	default y if ALPHA_QEMU
+	default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA)
+	default n if !ALPHA_SRM && !ALPHA_GENERIC
+	default y if SMP
+	---help---
+	  The Wait for Interrupt (WTINT) PALcall attempts to place the CPU
+	  to sleep until the next interrupt.  This may reduce the power
+	  consumed, and the heat produced by the computer.  However, it has
+	  the side effect of making the cycle counter unreliable as a timing
+	  device across the sleep.
+
+	  For emulation under QEMU, definitely say Y here, as we have other
+	  mechanisms for measuring time than the cycle counter.
+
+	  For EV4 (but not LCA), EV5 and EV56 systems, or for systems running
+	  MILO, sleep mode is not supported so you might as well say N here.
+
+	  For SMP systems we cannot use the cycle counter for timing anyway,
+	  so you might as well say Y here.
+
+	  If unsure, say N.
+
 config NODES_SHIFT
 	int
 	default "7"
diff --git a/arch/alpha/include/asm/pal.h b/arch/alpha/include/asm/pal.h
index 6fcd2b5b08f0..e78ec9bcc768 100644
--- a/arch/alpha/include/asm/pal.h
+++ b/arch/alpha/include/asm/pal.h
@@ -89,6 +89,7 @@ __CALL_PAL_W1(wrmces, unsigned long);
 __CALL_PAL_RW2(wrperfmon, unsigned long, unsigned long, unsigned long);
 __CALL_PAL_W1(wrusp, unsigned long);
 __CALL_PAL_W1(wrvptptr, unsigned long);
+__CALL_PAL_RW1(wtint, unsigned long, unsigned long);
 
 /*
  * TB routines..
diff --git a/arch/alpha/include/uapi/asm/pal.h b/arch/alpha/include/uapi/asm/pal.h
index 3c0ce08e5f59..dfc8140b9088 100644
--- a/arch/alpha/include/uapi/asm/pal.h
+++ b/arch/alpha/include/uapi/asm/pal.h
@@ -46,6 +46,7 @@
 #define PAL_rdusp	58
 #define PAL_whami	60
 #define PAL_retsys	61
+#define PAL_wtint	62
 #define PAL_rti		63
 
 
diff --git a/arch/alpha/kernel/process.c b/arch/alpha/kernel/process.c
index f2360a74e5d5..1941a07b5811 100644
--- a/arch/alpha/kernel/process.c
+++ b/arch/alpha/kernel/process.c
@@ -46,6 +46,23 @@
 void (*pm_power_off)(void) = machine_power_off;
 EXPORT_SYMBOL(pm_power_off);
 
+#ifdef CONFIG_ALPHA_WTINT
+/*
+ * Sleep the CPU.
+ * EV6, LCA45 and QEMU know how to power down, skipping N timer interrupts.
+ */
+void arch_cpu_idle(void)
+{
+	wtint(0);
+	local_irq_enable();
+}
+
+void arch_cpu_idle_dead(void)
+{
+	wtint(INT_MAX);
+}
+#endif /* ALPHA_WTINT */
+
 struct halt_info {
 	int mode;
 	char *restart_cmd;
diff --git a/arch/alpha/kernel/traps.c b/arch/alpha/kernel/traps.c
index bd0665cdc840..9c4c189eb22f 100644
--- a/arch/alpha/kernel/traps.c
+++ b/arch/alpha/kernel/traps.c
@@ -241,6 +241,21 @@ do_entIF(unsigned long type, struct pt_regs *regs)
 			       (const char *)(data[1] | (long)data[2] << 32), 
 			       data[0]);
 		}
+#ifdef CONFIG_ALPHA_WTINT
+		if (type == 4) {
+			/* If CALL_PAL WTINT is totally unsupported by the
+			   PALcode, e.g. MILO, "emulate" it by overwriting
+			   the insn.  */
+			unsigned int *pinsn
+			  = (unsigned int *) regs->pc - 1;
+			if (*pinsn == PAL_wtint) {
+				*pinsn = 0x47e01400; /* mov 0,$0 */
+				imb();
+				regs->r0 = 0;
+				return;
+			}
+		}
+#endif /* ALPHA_WTINT */
 		die_if_kernel((type == 1 ? "Kernel Bug" : "Instruction fault"),
 			      regs, type, NULL);
 	}
-- 
cgit 


From 85d0b3a573d8b711ee0c96199ac24a0f3283ed68 Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@twiddle.net>
Date: Sat, 13 Jul 2013 15:49:45 -0700
Subject: alpha: Reorganize rtc handling

Discontinue use of GENERIC_CMOS_UPDATE; rely on the RTC subsystem.

The marvel platform requires that the rtc only be touched from the
boot cpu.  This had been partially implemented with hooks for
get/set_rtc_time, but read/update_persistent_clock were not handled.
Move the hooks from the machine_vec to a special rtc_class_ops struct.

We had read_persistent_clock managing the epoch against which the
rtc hw is based, but this didn't apply to get_rtc_time or set_rtc_time.
This resulted in incorrect values when hwclock(8) gets involved.

Allow the epoch to be set from the kernel command-line, overriding
the autodetection, which is doomed to fail in 2020.  Further, by
implementing the rtc ioctl function, we can expose this epoch to
userland.

Elide the alarm functions that RTC_DRV_CMOS implements.  This was
highly questionable on Alpha, since the interrupt is used by the
system timer.

Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 arch/alpha/Kconfig               |   1 -
 arch/alpha/include/asm/machvec.h |   4 +-
 arch/alpha/include/asm/rtc.h     |  11 --
 arch/alpha/kernel/Makefile       |   1 +
 arch/alpha/kernel/machvec_impl.h |   5 +-
 arch/alpha/kernel/proto.h        |   2 -
 arch/alpha/kernel/rtc.c          | 323 +++++++++++++++++++++++++++++++++++++++
 arch/alpha/kernel/sys_jensen.c   |   2 -
 arch/alpha/kernel/sys_marvel.c   |  55 +------
 arch/alpha/kernel/time.c         | 146 +-----------------
 drivers/rtc/Kconfig              |  10 +-
 11 files changed, 337 insertions(+), 223 deletions(-)
 create mode 100644 arch/alpha/kernel/rtc.c

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index f9e84da49716..5d863d171b94 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -17,7 +17,6 @@ config ALPHA
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 	select GENERIC_SMP_IDLE_THREAD
-	select GENERIC_CMOS_UPDATE
 	select GENERIC_STRNCPY_FROM_USER
 	select GENERIC_STRNLEN_USER
 	select HAVE_MOD_ARCH_SPECIFIC
diff --git a/arch/alpha/include/asm/machvec.h b/arch/alpha/include/asm/machvec.h
index 4ac90167d346..75cb3641ed2f 100644
--- a/arch/alpha/include/asm/machvec.h
+++ b/arch/alpha/include/asm/machvec.h
@@ -33,6 +33,7 @@ struct alpha_machine_vector
 
 	int nr_irqs;
 	int rtc_port;
+	int rtc_boot_cpu_only;
 	unsigned int max_asn;
 	unsigned long max_isa_dma_address;
 	unsigned long irq_probe_mask;
@@ -95,9 +96,6 @@ struct alpha_machine_vector
 
 	struct _alpha_agp_info *(*agp_info)(void);
 
-	unsigned int (*rtc_get_time)(struct rtc_time *);
-	int (*rtc_set_time)(struct rtc_time *);
-
 	const char *vector_name;
 
 	/* NUMA information */
diff --git a/arch/alpha/include/asm/rtc.h b/arch/alpha/include/asm/rtc.h
index d70408d36677..f71c3b0ed360 100644
--- a/arch/alpha/include/asm/rtc.h
+++ b/arch/alpha/include/asm/rtc.h
@@ -1,12 +1 @@
-#ifndef _ALPHA_RTC_H
-#define _ALPHA_RTC_H
-
-#if defined(CONFIG_ALPHA_MARVEL) && defined(CONFIG_SMP) \
- || defined(CONFIG_ALPHA_GENERIC)
-# define get_rtc_time		alpha_mv.rtc_get_time
-# define set_rtc_time		alpha_mv.rtc_set_time
-#endif
-
 #include <asm-generic/rtc.h>
-
-#endif
diff --git a/arch/alpha/kernel/Makefile b/arch/alpha/kernel/Makefile
index 84ec46b38f7d..0d54650e78fc 100644
--- a/arch/alpha/kernel/Makefile
+++ b/arch/alpha/kernel/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_PCI)	+= pci.o pci_iommu.o pci-sysfs.o
 obj-$(CONFIG_SRM_ENV)	+= srm_env.o
 obj-$(CONFIG_MODULES)	+= module.o
 obj-$(CONFIG_PERF_EVENTS) += perf_event.o
+obj-$(CONFIG_RTC_DRV_ALPHA) += rtc.o
 
 ifdef CONFIG_ALPHA_GENERIC
 
diff --git a/arch/alpha/kernel/machvec_impl.h b/arch/alpha/kernel/machvec_impl.h
index 7fa62488bd16..f54bdf658cd0 100644
--- a/arch/alpha/kernel/machvec_impl.h
+++ b/arch/alpha/kernel/machvec_impl.h
@@ -43,10 +43,7 @@
 #define CAT1(x,y)  x##y
 #define CAT(x,y)   CAT1(x,y)
 
-#define DO_DEFAULT_RTC \
-	.rtc_port = 0x70, \
-	.rtc_get_time = common_get_rtc_time, \
-	.rtc_set_time = common_set_rtc_time
+#define DO_DEFAULT_RTC			.rtc_port = 0x70
 
 #define DO_EV4_MMU							\
 	.max_asn =			EV4_MAX_ASN,			\
diff --git a/arch/alpha/kernel/proto.h b/arch/alpha/kernel/proto.h
index d3e52d3fd592..3b250fa5f2c1 100644
--- a/arch/alpha/kernel/proto.h
+++ b/arch/alpha/kernel/proto.h
@@ -144,8 +144,6 @@ extern void smp_percpu_timer_interrupt(struct pt_regs *);
 extern irqreturn_t timer_interrupt(int irq, void *dev);
 extern void common_init_rtc(void);
 extern unsigned long est_cycle_freq;
-extern unsigned int common_get_rtc_time(struct rtc_time *time);
-extern int common_set_rtc_time(struct rtc_time *time);
 
 /* smc37c93x.c */
 extern void SMC93x_Init(void);
diff --git a/arch/alpha/kernel/rtc.c b/arch/alpha/kernel/rtc.c
new file mode 100644
index 000000000000..c8d284d8521f
--- /dev/null
+++ b/arch/alpha/kernel/rtc.c
@@ -0,0 +1,323 @@
+/*
+ *  linux/arch/alpha/kernel/rtc.c
+ *
+ *  Copyright (C) 1991, 1992, 1995, 1999, 2000  Linus Torvalds
+ *
+ * This file contains date handling.
+ */
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include <linux/mc146818rtc.h>
+#include <linux/bcd.h>
+#include <linux/rtc.h>
+#include <linux/platform_device.h>
+
+#include <asm/rtc.h>
+
+#include "proto.h"
+
+
+/*
+ * Support for the RTC device.
+ *
+ * We don't want to use the rtc-cmos driver, because we don't want to support
+ * alarms, as that would be indistinguishable from timer interrupts.
+ *
+ * Further, generic code is really, really tied to a 1900 epoch.  This is
+ * true in __get_rtc_time as well as the users of struct rtc_time e.g.
+ * rtc_tm_to_time.  Thankfully all of the other epochs in use are later
+ * than 1900, and so it's easy to adjust.
+ */
+
+static unsigned long rtc_epoch;
+
+static int __init
+specifiy_epoch(char *str)
+{
+	unsigned long epoch = simple_strtoul(str, NULL, 0);
+	if (epoch < 1900)
+		printk("Ignoring invalid user specified epoch %lu\n", epoch);
+	else
+		rtc_epoch = epoch;
+	return 1;
+}
+__setup("epoch=", specifiy_epoch);
+
+static void __init
+init_rtc_epoch(void)
+{
+	int epoch, year, ctrl;
+
+	if (rtc_epoch != 0) {
+		/* The epoch was specified on the command-line.  */
+		return;
+	}
+
+	/* Detect the epoch in use on this computer.  */
+	ctrl = CMOS_READ(RTC_CONTROL);
+	year = CMOS_READ(RTC_YEAR);
+	if (!(ctrl & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
+		year = bcd2bin(year);
+
+	/* PC-like is standard; used for year >= 70 */
+	epoch = 1900;
+	if (year < 20) {
+		epoch = 2000;
+	} else if (year >= 20 && year < 48) {
+		/* NT epoch */
+		epoch = 1980;
+	} else if (year >= 48 && year < 70) {
+		/* Digital UNIX epoch */
+		epoch = 1952;
+	}
+	rtc_epoch = epoch;
+
+	printk(KERN_INFO "Using epoch %d for rtc year %d\n", epoch, year);
+}
+
+static int
+alpha_rtc_read_time(struct device *dev, struct rtc_time *tm)
+{
+	__get_rtc_time(tm);
+
+	/* Adjust for non-default epochs.  It's easier to depend on the
+	   generic __get_rtc_time and adjust the epoch here than create
+	   a copy of __get_rtc_time with the edits we need.  */
+	if (rtc_epoch != 1900) {
+		int year = tm->tm_year;
+		/* Undo the century adjustment made in __get_rtc_time.  */
+		if (year >= 100)
+			year -= 100;
+		year += rtc_epoch - 1900;
+		/* Redo the century adjustment with the epoch in place.  */
+		if (year <= 69)
+			year += 100;
+		tm->tm_year = year;
+	}
+
+	return rtc_valid_tm(tm);
+}
+
+static int
+alpha_rtc_set_time(struct device *dev, struct rtc_time *tm)
+{
+	struct rtc_time xtm;
+
+	if (rtc_epoch != 1900) {
+		xtm = *tm;
+		xtm.tm_year -= rtc_epoch - 1900;
+		tm = &xtm;
+	}
+
+	return __set_rtc_time(tm);
+}
+
+static int
+alpha_rtc_set_mmss(struct device *dev, unsigned long nowtime)
+{
+	int retval = 0;
+	int real_seconds, real_minutes, cmos_minutes;
+	unsigned char save_control, save_freq_select;
+
+	/* Note: This code only updates minutes and seconds.  Comments
+	   indicate this was to avoid messing with unknown time zones,
+	   and with the epoch nonsense described above.  In order for
+	   this to work, the existing clock cannot be off by more than
+	   15 minutes.
+
+	   ??? This choice is may be out of date.  The x86 port does
+	   not have problems with timezones, and the epoch processing has
+	   now been fixed in alpha_set_rtc_time.
+
+	   In either case, one can always force a full rtc update with
+	   the userland hwclock program, so surely 15 minute accuracy
+	   is no real burden.  */
+
+	/* In order to set the CMOS clock precisely, we have to be called
+	   500 ms after the second nowtime has started, because when
+	   nowtime is written into the registers of the CMOS clock, it will
+	   jump to the next second precisely 500 ms later. Check the Motorola
+	   MC146818A or Dallas DS12887 data sheet for details.  */
+
+	/* irq are locally disabled here */
+	spin_lock(&rtc_lock);
+	/* Tell the clock it's being set */
+	save_control = CMOS_READ(RTC_CONTROL);
+	CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL);
+
+	/* Stop and reset prescaler */
+	save_freq_select = CMOS_READ(RTC_FREQ_SELECT);
+	CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
+
+	cmos_minutes = CMOS_READ(RTC_MINUTES);
+	if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
+		cmos_minutes = bcd2bin(cmos_minutes);
+
+	real_seconds = nowtime % 60;
+	real_minutes = nowtime / 60;
+	if (((abs(real_minutes - cmos_minutes) + 15) / 30) & 1) {
+		/* correct for half hour time zone */
+		real_minutes += 30;
+	}
+	real_minutes %= 60;
+
+	if (abs(real_minutes - cmos_minutes) < 30) {
+		if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
+			real_seconds = bin2bcd(real_seconds);
+			real_minutes = bin2bcd(real_minutes);
+		}
+		CMOS_WRITE(real_seconds,RTC_SECONDS);
+		CMOS_WRITE(real_minutes,RTC_MINUTES);
+	} else {
+		printk_once(KERN_NOTICE
+			    "set_rtc_mmss: can't update from %d to %d\n",
+			    cmos_minutes, real_minutes);
+		retval = -1;
+	}
+
+	/* The following flags have to be released exactly in this order,
+	 * otherwise the DS12887 (popular MC146818A clone with integrated
+	 * battery and quartz) will not reset the oscillator and will not
+	 * update precisely 500 ms later. You won't find this mentioned in
+	 * the Dallas Semiconductor data sheets, but who believes data
+	 * sheets anyway ...                           -- Markus Kuhn
+	 */
+	CMOS_WRITE(save_control, RTC_CONTROL);
+	CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
+	spin_unlock(&rtc_lock);
+
+	return retval;
+}
+
+static int
+alpha_rtc_ioctl(struct device *dev, unsigned int cmd, unsigned long arg)
+{
+	switch (cmd) {
+	case RTC_EPOCH_READ:
+		return put_user(rtc_epoch, (unsigned long __user *)arg);
+	case RTC_EPOCH_SET:
+		if (arg < 1900)
+			return -EINVAL;
+		rtc_epoch = arg;
+		return 0;
+	default:
+		return -ENOIOCTLCMD;
+	}
+}
+
+static const struct rtc_class_ops alpha_rtc_ops = {
+	.read_time = alpha_rtc_read_time,
+	.set_time = alpha_rtc_set_time,
+	.set_mmss = alpha_rtc_set_mmss,
+	.ioctl = alpha_rtc_ioctl,
+};
+
+/*
+ * Similarly, except do the actual CMOS access on the boot cpu only.
+ * This requires marshalling the data across an interprocessor call.
+ */
+
+#if defined(CONFIG_SMP) && \
+    (defined(CONFIG_ALPHA_GENERIC) || defined(CONFIG_ALPHA_MARVEL))
+# define HAVE_REMOTE_RTC 1
+
+union remote_data {
+	struct rtc_time *tm;
+	unsigned long now;
+	long retval;
+};
+
+static void
+do_remote_read(void *data)
+{
+	union remote_data *x = data;
+	x->retval = alpha_rtc_read_time(NULL, x->tm);
+}
+
+static int
+remote_read_time(struct device *dev, struct rtc_time *tm)
+{
+	union remote_data x;
+	if (smp_processor_id() != boot_cpuid) {
+		x.tm = tm;
+		smp_call_function_single(boot_cpuid, do_remote_read, &x, 1);
+		return x.retval;
+	}
+	return alpha_rtc_read_time(NULL, tm);
+}
+
+static void
+do_remote_set(void *data)
+{
+	union remote_data *x = data;
+	x->retval = alpha_rtc_set_time(NULL, x->tm);
+}
+
+static int
+remote_set_time(struct device *dev, struct rtc_time *tm)
+{
+	union remote_data x;
+	if (smp_processor_id() != boot_cpuid) {
+		x.tm = tm;
+		smp_call_function_single(boot_cpuid, do_remote_set, &x, 1);
+		return x.retval;
+	}
+	return alpha_rtc_set_time(NULL, tm);
+}
+
+static void
+do_remote_mmss(void *data)
+{
+	union remote_data *x = data;
+	x->retval = alpha_rtc_set_mmss(NULL, x->now);
+}
+
+static int
+remote_set_mmss(struct device *dev, unsigned long now)
+{
+	union remote_data x;
+	if (smp_processor_id() != boot_cpuid) {
+		x.now = now;
+		smp_call_function_single(boot_cpuid, do_remote_mmss, &x, 1);
+		return x.retval;
+	}
+	return alpha_rtc_set_mmss(NULL, now);
+}
+
+static const struct rtc_class_ops remote_rtc_ops = {
+	.read_time = remote_read_time,
+	.set_time = remote_set_time,
+	.set_mmss = remote_set_mmss,
+	.ioctl = alpha_rtc_ioctl,
+};
+#endif
+
+static int __init
+alpha_rtc_init(void)
+{
+	const struct rtc_class_ops *ops;
+	struct platform_device *pdev;
+	struct rtc_device *rtc;
+	const char *name;
+
+	init_rtc_epoch();
+	name = "rtc-alpha";
+	ops = &alpha_rtc_ops;
+
+#ifdef HAVE_REMOTE_RTC
+	if (alpha_mv.rtc_boot_cpu_only)
+		ops = &remote_rtc_ops;
+#endif
+
+	pdev = platform_device_register_simple(name, -1, NULL, 0);
+	rtc = devm_rtc_device_register(&pdev->dev, name, ops, THIS_MODULE);
+	if (IS_ERR(rtc))
+		return PTR_ERR(rtc);
+
+	platform_set_drvdata(pdev, rtc);
+	return 0;
+}
+device_initcall(alpha_rtc_init);
diff --git a/arch/alpha/kernel/sys_jensen.c b/arch/alpha/kernel/sys_jensen.c
index 5a0af11b3a61..608f2a7fa0a3 100644
--- a/arch/alpha/kernel/sys_jensen.c
+++ b/arch/alpha/kernel/sys_jensen.c
@@ -224,8 +224,6 @@ struct alpha_machine_vector jensen_mv __initmv = {
 	.machine_check		= jensen_machine_check,
 	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
 	.rtc_port		= 0x170,
-	.rtc_get_time		= common_get_rtc_time,
-	.rtc_set_time		= common_set_rtc_time,
 
 	.nr_irqs		= 16,
 	.device_interrupt	= jensen_device_interrupt,
diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c
index c92e389ff219..f21d61fab678 100644
--- a/arch/alpha/kernel/sys_marvel.c
+++ b/arch/alpha/kernel/sys_marvel.c
@@ -22,7 +22,6 @@
 #include <asm/hwrpb.h>
 #include <asm/tlbflush.h>
 #include <asm/vga.h>
-#include <asm/rtc.h>
 
 #include "proto.h"
 #include "err_impl.h"
@@ -400,57 +399,6 @@ marvel_init_rtc(void)
 	init_rtc_irq();
 }
 
-struct marvel_rtc_time {
-	struct rtc_time *time;
-	int retval;
-};
-
-#ifdef CONFIG_SMP
-static void
-smp_get_rtc_time(void *data)
-{
-	struct marvel_rtc_time *mrt = data;
-	mrt->retval = __get_rtc_time(mrt->time);
-}
-
-static void
-smp_set_rtc_time(void *data)
-{
-	struct marvel_rtc_time *mrt = data;
-	mrt->retval = __set_rtc_time(mrt->time);
-}
-#endif
-
-static unsigned int
-marvel_get_rtc_time(struct rtc_time *time)
-{
-#ifdef CONFIG_SMP
-	struct marvel_rtc_time mrt;
-
-	if (smp_processor_id() != boot_cpuid) {
-		mrt.time = time;
-		smp_call_function_single(boot_cpuid, smp_get_rtc_time, &mrt, 1);
-		return mrt.retval;
-	}
-#endif
-	return __get_rtc_time(time);
-}
-
-static int
-marvel_set_rtc_time(struct rtc_time *time)
-{
-#ifdef CONFIG_SMP
-	struct marvel_rtc_time mrt;
-
-	if (smp_processor_id() != boot_cpuid) {
-		mrt.time = time;
-		smp_call_function_single(boot_cpuid, smp_set_rtc_time, &mrt, 1);
-		return mrt.retval;
-	}
-#endif
-	return __set_rtc_time(time);
-}
-
 static void
 marvel_smp_callin(void)
 {
@@ -492,8 +440,7 @@ struct alpha_machine_vector marvel_ev7_mv __initmv = {
 	.vector_name		= "MARVEL/EV7",
 	DO_EV7_MMU,
 	.rtc_port		= 0x70,
-	.rtc_get_time		= marvel_get_rtc_time,
-	.rtc_set_time		= marvel_set_rtc_time,
+	.rtc_boot_cpu_only	= 1,
 	DO_MARVEL_IO,
 	.machine_check		= marvel_machine_check,
 	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c
index a6bcb3113d81..4c6c0fe47a7b 100644
--- a/arch/alpha/kernel/time.c
+++ b/arch/alpha/kernel/time.c
@@ -3,13 +3,7 @@
  *
  *  Copyright (C) 1991, 1992, 1995, 1999, 2000  Linus Torvalds
  *
- * This file contains the PC-specific time handling details:
- * reading the RTC at bootup, etc..
- * 1994-07-02    Alan Modra
- *	fixed set_rtc_mmss, fixed time.year for >= 2000, new mktime
- * 1995-03-26    Markus Kuhn
- *      fixed 500 ms bug at call to set_rtc_mmss, fixed DS12887
- *      precision CMOS clock update
+ * This file contains the clocksource time handling.
  * 1997-09-10	Updated NTP code according to technical memorandum Jan '96
  *		"A Kernel Model for Precision Timekeeping" by Dave Mills
  * 1997-01-09    Adrian Sun
@@ -21,9 +15,6 @@
  * 1999-04-16	Thorsten Kranzkowski (dl8bcu@gmx.net)
  *	fixed algorithm in do_gettimeofday() for calculating the precise time
  *	from processor cycle counter (now taking lost_ticks into account)
- * 2000-08-13	Jan-Benedict Glaw <jbglaw@lug-owl.de>
- * 	Fixed time_init to be aware of epoches != 1900. This prevents
- * 	booting up in 2048 for me;) Code is stolen from rtc.c.
  * 2003-06-03	R. Scott Bailey <scott.bailey@eds.com>
  *	Tighten sanity in time_init from 1% (10,000 PPM) to 250 PPM
  */
@@ -46,7 +37,6 @@
 #include <asm/uaccess.h>
 #include <asm/io.h>
 #include <asm/hwrpb.h>
-#include <asm/rtc.h>
 
 #include <linux/mc146818rtc.h>
 #include <linux/time.h>
@@ -56,8 +46,6 @@
 #include "proto.h"
 #include "irq_impl.h"
 
-static int set_rtc_mmss(unsigned long);
-
 DEFINE_SPINLOCK(rtc_lock);
 EXPORT_SYMBOL(rtc_lock);
 
@@ -108,53 +96,6 @@ static inline __u32 rpcc(void)
 	return __builtin_alpha_rpcc();
 }
 
-int update_persistent_clock(struct timespec now)
-{
-	return set_rtc_mmss(now.tv_sec);
-}
-
-void read_persistent_clock(struct timespec *ts)
-{
-	unsigned int year, mon, day, hour, min, sec, epoch;
-
-	sec = CMOS_READ(RTC_SECONDS);
-	min = CMOS_READ(RTC_MINUTES);
-	hour = CMOS_READ(RTC_HOURS);
-	day = CMOS_READ(RTC_DAY_OF_MONTH);
-	mon = CMOS_READ(RTC_MONTH);
-	year = CMOS_READ(RTC_YEAR);
-
-	if (!(CMOS_READ(RTC_CONTROL) & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
-		sec = bcd2bin(sec);
-		min = bcd2bin(min);
-		hour = bcd2bin(hour);
-		day = bcd2bin(day);
-		mon = bcd2bin(mon);
-		year = bcd2bin(year);
-	}
-
-	/* PC-like is standard; used for year >= 70 */
-	epoch = 1900;
-	if (year < 20)
-		epoch = 2000;
-	else if (year >= 20 && year < 48)
-		/* NT epoch */
-		epoch = 1980;
-	else if (year >= 48 && year < 70)
-		/* Digital UNIX epoch */
-		epoch = 1952;
-
-	printk(KERN_INFO "Using epoch = %d\n", epoch);
-
-	if ((year += epoch) < 1970)
-		year += 100;
-
-	ts->tv_sec = mktime(year, mon, day, hour, min, sec);
-	ts->tv_nsec = 0;
-}
-
-
-
 /*
  * timer_interrupt() needs to keep up the real-time clock,
  * as well as call the "xtime_update()" routine every clocktick
@@ -243,16 +184,6 @@ common_init_rtc(void)
 	init_rtc_irq();
 }
 
-unsigned int common_get_rtc_time(struct rtc_time *time)
-{
-	return __get_rtc_time(time);
-}
-
-int common_set_rtc_time(struct rtc_time *time)
-{
-	return __set_rtc_time(time);
-}
-
 /* Validate a computed cycle counter result against the known bounds for
    the given processor core.  There's too much brokenness in the way of
    timing hardware for any one method to work everywhere.  :-(
@@ -453,78 +384,3 @@ time_init(void)
 	/* Startup the timer source. */
 	alpha_mv.init_rtc();
 }
-
-/*
- * In order to set the CMOS clock precisely, set_rtc_mmss has to be
- * called 500 ms after the second nowtime has started, because when
- * nowtime is written into the registers of the CMOS clock, it will
- * jump to the next second precisely 500 ms later. Check the Motorola
- * MC146818A or Dallas DS12887 data sheet for details.
- *
- * BUG: This routine does not handle hour overflow properly; it just
- *      sets the minutes. Usually you won't notice until after reboot!
- */
-
-
-static int
-set_rtc_mmss(unsigned long nowtime)
-{
-	int retval = 0;
-	int real_seconds, real_minutes, cmos_minutes;
-	unsigned char save_control, save_freq_select;
-
-	/* irq are locally disabled here */
-	spin_lock(&rtc_lock);
-	/* Tell the clock it's being set */
-	save_control = CMOS_READ(RTC_CONTROL);
-	CMOS_WRITE((save_control|RTC_SET), RTC_CONTROL);
-
-	/* Stop and reset prescaler */
-	save_freq_select = CMOS_READ(RTC_FREQ_SELECT);
-	CMOS_WRITE((save_freq_select|RTC_DIV_RESET2), RTC_FREQ_SELECT);
-
-	cmos_minutes = CMOS_READ(RTC_MINUTES);
-	if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD)
-		cmos_minutes = bcd2bin(cmos_minutes);
-
-	/*
-	 * since we're only adjusting minutes and seconds,
-	 * don't interfere with hour overflow. This avoids
-	 * messing with unknown time zones but requires your
-	 * RTC not to be off by more than 15 minutes
-	 */
-	real_seconds = nowtime % 60;
-	real_minutes = nowtime / 60;
-	if (((abs(real_minutes - cmos_minutes) + 15)/30) & 1) {
-		/* correct for half hour time zone */
-		real_minutes += 30;
-	}
-	real_minutes %= 60;
-
-	if (abs(real_minutes - cmos_minutes) < 30) {
-		if (!(save_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) {
-			real_seconds = bin2bcd(real_seconds);
-			real_minutes = bin2bcd(real_minutes);
-		}
-		CMOS_WRITE(real_seconds,RTC_SECONDS);
-		CMOS_WRITE(real_minutes,RTC_MINUTES);
-	} else {
-		printk_once(KERN_NOTICE
-		       "set_rtc_mmss: can't update from %d to %d\n",
-		       cmos_minutes, real_minutes);
- 		retval = -1;
-	}
-
-	/* The following flags have to be released exactly in this order,
-	 * otherwise the DS12887 (popular MC146818A clone with integrated
-	 * battery and quartz) will not reset the oscillator and will not
-	 * update precisely 500 ms later. You won't find this mentioned in
-	 * the Dallas Semiconductor data sheets, but who believes data
-	 * sheets anyway ...                           -- Markus Kuhn
-	 */
-	CMOS_WRITE(save_control, RTC_CONTROL);
-	CMOS_WRITE(save_freq_select, RTC_FREQ_SELECT);
-	spin_unlock(&rtc_lock);
-
-	return retval;
-}
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 15f166a470a7..007730222116 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -626,7 +626,7 @@ comment "Platform RTC drivers"
 
 config RTC_DRV_CMOS
 	tristate "PC-style 'CMOS'"
-	depends on X86 || ALPHA || ARM || M32R || ATARI || PPC || MIPS || SPARC64
+	depends on X86 || ARM || M32R || ATARI || PPC || MIPS || SPARC64
 	default y if X86
 	help
 	  Say "yes" here to get direct support for the real time clock
@@ -643,6 +643,14 @@ config RTC_DRV_CMOS
 	  This driver can also be built as a module. If so, the module
 	  will be called rtc-cmos.
 
+config RTC_DRV_ALPHA
+	bool "Alpha PC-style CMOS"
+	depends on ALPHA
+	default y
+	help
+	  Direct support for the real-time clock found on every Alpha
+	  system, specifically MC146818 compatibles.  If in doubt, say Y.
+
 config RTC_DRV_VRTC
 	tristate "Virtual RTC for Intel MID platforms"
 	depends on X86_INTEL_MID
-- 
cgit 


From db2d3260617ae8c9076ef12e6de06bd5b3d82cd3 Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@twiddle.net>
Date: Sun, 14 Jul 2013 09:55:08 -0700
Subject: alpha: Enable the rpcc clocksource for single processor

Don't depend on SMP, just check the number of processors online.
This allows a single distribution kernel to use the clocksource
when run on a single processor machine.  Do depend on whether or
not we're using WTINT.

Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 arch/alpha/kernel/time.c | 67 ++++++++++++++++++++++++++----------------------
 1 file changed, 37 insertions(+), 30 deletions(-)

diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c
index 4c6c0fe47a7b..0d72e2df4b0e 100644
--- a/arch/alpha/kernel/time.c
+++ b/arch/alpha/kernel/time.c
@@ -184,6 +184,37 @@ common_init_rtc(void)
 	init_rtc_irq();
 }
 
+
+#ifndef CONFIG_ALPHA_WTINT
+/*
+ * The RPCC as a clocksource primitive.
+ *
+ * While we have free-running timecounters running on all CPUs, and we make
+ * a half-hearted attempt in init_rtc_rpcc_info to sync the timecounter
+ * with the wall clock, that initialization isn't kept up-to-date across
+ * different time counters in SMP mode.  Therefore we can only use this
+ * method when there's only one CPU enabled.
+ *
+ * When using the WTINT PALcall, the RPCC may shift to a lower frequency,
+ * or stop altogether, while waiting for the interrupt.  Therefore we cannot
+ * use this method when WTINT is in use.
+ */
+
+static cycle_t read_rpcc(struct clocksource *cs)
+{
+	return rpcc();
+}
+
+static struct clocksource clocksource_rpcc = {
+	.name                   = "rpcc",
+	.rating                 = 300,
+	.read                   = read_rpcc,
+	.mask                   = CLOCKSOURCE_MASK(32),
+	.flags                  = CLOCK_SOURCE_IS_CONTINUOUS
+};
+#endif /* ALPHA_WTINT */
+
+
 /* Validate a computed cycle counter result against the known bounds for
    the given processor core.  There's too much brokenness in the way of
    timing hardware for any one method to work everywhere.  :-(
@@ -294,33 +325,6 @@ rpcc_after_update_in_progress(void)
 	return rpcc();
 }
 
-#ifndef CONFIG_SMP
-/* Until and unless we figure out how to get cpu cycle counters
-   in sync and keep them there, we can't use the rpcc.  */
-static cycle_t read_rpcc(struct clocksource *cs)
-{
-	cycle_t ret = (cycle_t)rpcc();
-	return ret;
-}
-
-static struct clocksource clocksource_rpcc = {
-	.name                   = "rpcc",
-	.rating                 = 300,
-	.read                   = read_rpcc,
-	.mask                   = CLOCKSOURCE_MASK(32),
-	.flags                  = CLOCK_SOURCE_IS_CONTINUOUS
-};
-
-static inline void register_rpcc_clocksource(long cycle_freq)
-{
-	clocksource_register_hz(&clocksource_rpcc, cycle_freq);
-}
-#else /* !CONFIG_SMP */
-static inline void register_rpcc_clocksource(long cycle_freq)
-{
-}
-#endif /* !CONFIG_SMP */
-
 void __init
 time_init(void)
 {
@@ -362,20 +366,23 @@ time_init(void)
 		       "and unable to estimate a proper value!\n");
 	}
 
+	/* See above for restrictions on using clocksource_rpcc.  */
+#ifndef CONFIG_ALPHA_WTINT
+	if (hwrpb->nr_processors == 1)
+		clocksource_register_hz(&clocksource_rpcc, cycle_freq);
+#endif
+
 	/* From John Bowman <bowman@math.ualberta.ca>: allow the values
 	   to settle, as the Update-In-Progress bit going low isn't good
 	   enough on some hardware.  2ms is our guess; we haven't found 
 	   bogomips yet, but this is close on a 500Mhz box.  */
 	__delay(1000000);
 
-
 	if (HZ > (1<<16)) {
 		extern void __you_loose (void);
 		__you_loose();
 	}
 
-	register_rpcc_clocksource(cycle_freq);
-
 	state.last_time = cc1;
 	state.scaled_ticks_per_cycle
 		= ((unsigned long) HZ << FIX_SHIFT) / cycle_freq;
-- 
cgit 


From a1659d6d128a7e0c2985bce7c957b66af1f71181 Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@twiddle.net>
Date: Sun, 14 Jul 2013 10:57:34 -0700
Subject: alpha: Switch to GENERIC_CLOCKEVENTS

This allows us to get rid of some hacky code for SMP.  Get rid of
some cycle counter hackery that's now handled by generic code via
clocksource + clock_event_device objects.

Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 arch/alpha/Kconfig            |   1 +
 arch/alpha/kernel/irq_alpha.c |  14 ------
 arch/alpha/kernel/proto.h     |   2 +-
 arch/alpha/kernel/smp.c       |  33 ++-----------
 arch/alpha/kernel/time.c      | 112 ++++++++++++++++++------------------------
 5 files changed, 53 insertions(+), 109 deletions(-)

diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 5d863d171b94..d39dc9b95a2c 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -16,6 +16,7 @@ config ALPHA
 	select ARCH_WANT_IPC_PARSE_VERSION
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
+	select GENERIC_CLOCKEVENTS
 	select GENERIC_SMP_IDLE_THREAD
 	select GENERIC_STRNCPY_FROM_USER
 	select GENERIC_STRNLEN_USER
diff --git a/arch/alpha/kernel/irq_alpha.c b/arch/alpha/kernel/irq_alpha.c
index 28e4429596f3..6990ddc0fbaf 100644
--- a/arch/alpha/kernel/irq_alpha.c
+++ b/arch/alpha/kernel/irq_alpha.c
@@ -66,21 +66,7 @@ do_entInt(unsigned long type, unsigned long vector,
 		break;
 	case 1:
 		old_regs = set_irq_regs(regs);
-#ifdef CONFIG_SMP
-	  {
-		long cpu;
-
-		smp_percpu_timer_interrupt(regs);
-		cpu = smp_processor_id();
-		if (cpu != boot_cpuid) {
-		        kstat_incr_irqs_this_cpu(RTC_IRQ, irq_to_desc(RTC_IRQ));
-		} else {
-			handle_irq(RTC_IRQ);
-		}
-	  }
-#else
 		handle_irq(RTC_IRQ);
-#endif
 		set_irq_regs(old_regs);
 		return;
 	case 2:
diff --git a/arch/alpha/kernel/proto.h b/arch/alpha/kernel/proto.h
index 3b250fa5f2c1..bc806893afe0 100644
--- a/arch/alpha/kernel/proto.h
+++ b/arch/alpha/kernel/proto.h
@@ -135,13 +135,13 @@ extern void unregister_srm_console(void);
 /* smp.c */
 extern void setup_smp(void);
 extern void handle_ipi(struct pt_regs *);
-extern void smp_percpu_timer_interrupt(struct pt_regs *);
 
 /* bios32.c */
 /* extern void reset_for_srm(void); */
 
 /* time.c */
 extern irqreturn_t timer_interrupt(int irq, void *dev);
+extern void init_clockevent(void);
 extern void common_init_rtc(void);
 extern unsigned long est_cycle_freq;
 
diff --git a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
index 9dbbcb3b9146..99ac36d5de4e 100644
--- a/arch/alpha/kernel/smp.c
+++ b/arch/alpha/kernel/smp.c
@@ -138,9 +138,11 @@ smp_callin(void)
 
 	/* Get our local ticker going. */
 	smp_setup_percpu_timer(cpuid);
+	init_clockevent();
 
 	/* Call platform-specific callin, if specified */
-	if (alpha_mv.smp_callin) alpha_mv.smp_callin();
+	if (alpha_mv.smp_callin)
+		alpha_mv.smp_callin();
 
 	/* All kernel threads share the same mm context.  */
 	atomic_inc(&init_mm.mm_count);
@@ -498,35 +500,6 @@ smp_cpus_done(unsigned int max_cpus)
 	       ((bogosum + 2500) / (5000/HZ)) % 100);
 }
 
-
-void
-smp_percpu_timer_interrupt(struct pt_regs *regs)
-{
-	struct pt_regs *old_regs;
-	int cpu = smp_processor_id();
-	unsigned long user = user_mode(regs);
-	struct cpuinfo_alpha *data = &cpu_data[cpu];
-
-	old_regs = set_irq_regs(regs);
-
-	/* Record kernel PC.  */
-	profile_tick(CPU_PROFILING);
-
-	if (!--data->prof_counter) {
-		/* We need to make like a normal interrupt -- otherwise
-		   timer interrupts ignore the global interrupt lock,
-		   which would be a Bad Thing.  */
-		irq_enter();
-
-		update_process_times(user);
-
-		data->prof_counter = data->prof_multiplier;
-
-		irq_exit();
-	}
-	set_irq_regs(old_regs);
-}
-
 int
 setup_profiling_timer(unsigned int multiplier)
 {
diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c
index 0d72e2df4b0e..08ff3f502a76 100644
--- a/arch/alpha/kernel/time.c
+++ b/arch/alpha/kernel/time.c
@@ -42,6 +42,7 @@
 #include <linux/time.h>
 #include <linux/timex.h>
 #include <linux/clocksource.h>
+#include <linux/clockchips.h>
 
 #include "proto.h"
 #include "irq_impl.h"
@@ -49,25 +50,6 @@
 DEFINE_SPINLOCK(rtc_lock);
 EXPORT_SYMBOL(rtc_lock);
 
-#define TICK_SIZE (tick_nsec / 1000)
-
-/*
- * Shift amount by which scaled_ticks_per_cycle is scaled.  Shifting
- * by 48 gives us 16 bits for HZ while keeping the accuracy good even
- * for large CPU clock rates.
- */
-#define FIX_SHIFT	48
-
-/* lump static variables together for more efficient access: */
-static struct {
-	/* cycle counter last time it got invoked */
-	__u32 last_time;
-	/* ticks/cycle * 2^48 */
-	unsigned long scaled_ticks_per_cycle;
-	/* partial unused tick */
-	unsigned long partial_tick;
-} state;
-
 unsigned long est_cycle_freq;
 
 #ifdef CONFIG_IRQ_WORK
@@ -96,49 +78,64 @@ static inline __u32 rpcc(void)
 	return __builtin_alpha_rpcc();
 }
 
+
+
 /*
- * timer_interrupt() needs to keep up the real-time clock,
- * as well as call the "xtime_update()" routine every clocktick
+ * The RTC as a clock_event_device primitive.
  */
-irqreturn_t timer_interrupt(int irq, void *dev)
-{
-	unsigned long delta;
-	__u32 now;
-	long nticks;
 
-#ifndef CONFIG_SMP
-	/* Not SMP, do kernel PC profiling here.  */
-	profile_tick(CPU_PROFILING);
-#endif
+static DEFINE_PER_CPU(struct clock_event_device, cpu_ce);
 
-	/*
-	 * Calculate how many ticks have passed since the last update,
-	 * including any previous partial leftover.  Save any resulting
-	 * fraction for the next pass.
-	 */
-	now = rpcc();
-	delta = now - state.last_time;
-	state.last_time = now;
-	delta = delta * state.scaled_ticks_per_cycle + state.partial_tick;
-	state.partial_tick = delta & ((1UL << FIX_SHIFT) - 1); 
-	nticks = delta >> FIX_SHIFT;
+irqreturn_t
+timer_interrupt(int irq, void *dev)
+{
+	int cpu = smp_processor_id();
+	struct clock_event_device *ce = &per_cpu(cpu_ce, cpu);
 
-	if (nticks)
-		xtime_update(nticks);
+	/* Don't run the hook for UNUSED or SHUTDOWN.  */
+	if (likely(ce->mode == CLOCK_EVT_MODE_PERIODIC))
+		ce->event_handler(ce);
 
 	if (test_irq_work_pending()) {
 		clear_irq_work_pending();
 		irq_work_run();
 	}
 
-#ifndef CONFIG_SMP
-	while (nticks--)
-		update_process_times(user_mode(get_irq_regs()));
-#endif
-
 	return IRQ_HANDLED;
 }
 
+static void
+rtc_ce_set_mode(enum clock_event_mode mode, struct clock_event_device *ce)
+{
+	/* The mode member of CE is updated in generic code.
+	   Since we only support periodic events, nothing to do.  */
+}
+
+static int
+rtc_ce_set_next_event(unsigned long evt, struct clock_event_device *ce)
+{
+	/* This hook is for oneshot mode, which we don't support.  */
+	return -EINVAL;
+}
+
+void __init
+init_clockevent(void)
+{
+	int cpu = smp_processor_id();
+	struct clock_event_device *ce = &per_cpu(cpu_ce, cpu);
+
+	*ce = (struct clock_event_device){
+		.name = "rtc",
+		.features = CLOCK_EVT_FEAT_PERIODIC,
+		.rating = 100,
+		.cpumask = cpumask_of(cpu),
+		.set_mode = rtc_ce_set_mode,
+		.set_next_event = rtc_ce_set_next_event,
+	};
+
+	clockevents_config_and_register(ce, CONFIG_HZ, 0, 0);
+}
+
 void __init
 common_init_rtc(void)
 {
@@ -372,22 +369,9 @@ time_init(void)
 		clocksource_register_hz(&clocksource_rpcc, cycle_freq);
 #endif
 
-	/* From John Bowman <bowman@math.ualberta.ca>: allow the values
-	   to settle, as the Update-In-Progress bit going low isn't good
-	   enough on some hardware.  2ms is our guess; we haven't found 
-	   bogomips yet, but this is close on a 500Mhz box.  */
-	__delay(1000000);
-
-	if (HZ > (1<<16)) {
-		extern void __you_loose (void);
-		__you_loose();
-	}
-
-	state.last_time = cc1;
-	state.scaled_ticks_per_cycle
-		= ((unsigned long) HZ << FIX_SHIFT) / cycle_freq;
-	state.partial_tick = 0L;
-
 	/* Startup the timer source. */
 	alpha_mv.init_rtc();
+
+	/* Start up the clock event device.  */
+	init_clockevent();
 }
-- 
cgit 


From 4914d7b458e35a7db2f9c7dc6eb014620254bbbf Mon Sep 17 00:00:00 2001
From: Richard Henderson <rth@twiddle.net>
Date: Sun, 14 Jul 2013 14:50:21 -0700
Subject: alpha: Use qemu+cserve provided high-res clock and alarm.

QEMU provides a high-resolution timer and alarm; use this for
a clock source and clock event source when available.

Signed-off-by: Richard Henderson <rth@twiddle.net>
---
 arch/alpha/include/asm/pal.h  | 70 +++++++++++++++++++++++++++++++
 arch/alpha/kernel/irq_alpha.c |  2 +-
 arch/alpha/kernel/proto.h     |  2 +-
 arch/alpha/kernel/time.c      | 98 ++++++++++++++++++++++++++++++++++++++++---
 4 files changed, 165 insertions(+), 7 deletions(-)

diff --git a/arch/alpha/include/asm/pal.h b/arch/alpha/include/asm/pal.h
index e78ec9bcc768..5422a47646fc 100644
--- a/arch/alpha/include/asm/pal.h
+++ b/arch/alpha/include/asm/pal.h
@@ -112,5 +112,75 @@ __CALL_PAL_RW1(wtint, unsigned long, unsigned long);
 #define tbiap()		__tbi(-1, /* no second argument */)
 #define tbia()		__tbi(-2, /* no second argument */)
 
+/*
+ * QEMU Cserv routines..
+ */
+
+static inline unsigned long
+qemu_get_walltime(void)
+{
+	register unsigned long v0 __asm__("$0");
+	register unsigned long a0 __asm__("$16") = 3;
+
+	asm("call_pal %2 # cserve get_time"
+	    : "=r"(v0), "+r"(a0)
+	    : "i"(PAL_cserve)
+	    : "$17", "$18", "$19", "$20", "$21");
+
+	return v0;
+}
+
+static inline unsigned long
+qemu_get_alarm(void)
+{
+	register unsigned long v0 __asm__("$0");
+	register unsigned long a0 __asm__("$16") = 4;
+
+	asm("call_pal %2 # cserve get_alarm"
+	    : "=r"(v0), "+r"(a0)
+	    : "i"(PAL_cserve)
+	    : "$17", "$18", "$19", "$20", "$21");
+
+	return v0;
+}
+
+static inline void
+qemu_set_alarm_rel(unsigned long expire)
+{
+	register unsigned long a0 __asm__("$16") = 5;
+	register unsigned long a1 __asm__("$17") = expire;
+
+	asm volatile("call_pal %2 # cserve set_alarm_rel"
+		     : "+r"(a0), "+r"(a1)
+		     : "i"(PAL_cserve)
+		     : "$0", "$18", "$19", "$20", "$21");
+}
+
+static inline void
+qemu_set_alarm_abs(unsigned long expire)
+{
+	register unsigned long a0 __asm__("$16") = 6;
+	register unsigned long a1 __asm__("$17") = expire;
+
+	asm volatile("call_pal %2 # cserve set_alarm_abs"
+		     : "+r"(a0), "+r"(a1)
+		     : "i"(PAL_cserve)
+		     : "$0", "$18", "$19", "$20", "$21");
+}
+
+static inline unsigned long
+qemu_get_vmtime(void)
+{
+	register unsigned long v0 __asm__("$0");
+	register unsigned long a0 __asm__("$16") = 7;
+
+	asm("call_pal %2 # cserve get_time"
+	    : "=r"(v0), "+r"(a0)
+	    : "i"(PAL_cserve)
+	    : "$17", "$18", "$19", "$20", "$21");
+
+	return v0;
+}
+
 #endif /* !__ASSEMBLY__ */
 #endif /* __ALPHA_PAL_H */
diff --git a/arch/alpha/kernel/irq_alpha.c b/arch/alpha/kernel/irq_alpha.c
index 6990ddc0fbaf..1c8625cb0e25 100644
--- a/arch/alpha/kernel/irq_alpha.c
+++ b/arch/alpha/kernel/irq_alpha.c
@@ -214,7 +214,7 @@ process_mcheck_info(unsigned long vector, unsigned long la_ptr,
  */
 
 struct irqaction timer_irqaction = {
-	.handler	= timer_interrupt,
+	.handler	= rtc_timer_interrupt,
 	.name		= "timer",
 };
 
diff --git a/arch/alpha/kernel/proto.h b/arch/alpha/kernel/proto.h
index bc806893afe0..da2d6ec9c370 100644
--- a/arch/alpha/kernel/proto.h
+++ b/arch/alpha/kernel/proto.h
@@ -140,7 +140,7 @@ extern void handle_ipi(struct pt_regs *);
 /* extern void reset_for_srm(void); */
 
 /* time.c */
-extern irqreturn_t timer_interrupt(int irq, void *dev);
+extern irqreturn_t rtc_timer_interrupt(int irq, void *dev);
 extern void init_clockevent(void);
 extern void common_init_rtc(void);
 extern unsigned long est_cycle_freq;
diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c
index 08ff3f502a76..ee39cee8064c 100644
--- a/arch/alpha/kernel/time.c
+++ b/arch/alpha/kernel/time.c
@@ -87,7 +87,7 @@ static inline __u32 rpcc(void)
 static DEFINE_PER_CPU(struct clock_event_device, cpu_ce);
 
 irqreturn_t
-timer_interrupt(int irq, void *dev)
+rtc_timer_interrupt(int irq, void *dev)
 {
 	int cpu = smp_processor_id();
 	struct clock_event_device *ce = &per_cpu(cpu_ce, cpu);
@@ -118,8 +118,8 @@ rtc_ce_set_next_event(unsigned long evt, struct clock_event_device *ce)
 	return -EINVAL;
 }
 
-void __init
-init_clockevent(void)
+static void __init
+init_rtc_clockevent(void)
 {
 	int cpu = smp_processor_id();
 	struct clock_event_device *ce = &per_cpu(cpu_ce, cpu);
@@ -136,6 +136,75 @@ init_clockevent(void)
 	clockevents_config_and_register(ce, CONFIG_HZ, 0, 0);
 }
 
+
+/*
+ * The QEMU clock as a clocksource primitive.
+ */
+
+static cycle_t
+qemu_cs_read(struct clocksource *cs)
+{
+	return qemu_get_vmtime();
+}
+
+static struct clocksource qemu_cs = {
+	.name                   = "qemu",
+	.rating                 = 400,
+	.read                   = qemu_cs_read,
+	.mask                   = CLOCKSOURCE_MASK(64),
+	.flags                  = CLOCK_SOURCE_IS_CONTINUOUS,
+	.max_idle_ns		= LONG_MAX
+};
+
+
+/*
+ * The QEMU alarm as a clock_event_device primitive.
+ */
+
+static void
+qemu_ce_set_mode(enum clock_event_mode mode, struct clock_event_device *ce)
+{
+	/* The mode member of CE is updated for us in generic code.
+	   Just make sure that the event is disabled.  */
+	qemu_set_alarm_abs(0);
+}
+
+static int
+qemu_ce_set_next_event(unsigned long evt, struct clock_event_device *ce)
+{
+	qemu_set_alarm_rel(evt);
+	return 0;
+}
+
+static irqreturn_t
+qemu_timer_interrupt(int irq, void *dev)
+{
+	int cpu = smp_processor_id();
+	struct clock_event_device *ce = &per_cpu(cpu_ce, cpu);
+
+	ce->event_handler(ce);
+	return IRQ_HANDLED;
+}
+
+static void __init
+init_qemu_clockevent(void)
+{
+	int cpu = smp_processor_id();
+	struct clock_event_device *ce = &per_cpu(cpu_ce, cpu);
+
+	*ce = (struct clock_event_device){
+		.name = "qemu",
+		.features = CLOCK_EVT_FEAT_ONESHOT,
+		.rating = 400,
+		.cpumask = cpumask_of(cpu),
+		.set_mode = qemu_ce_set_mode,
+		.set_next_event = qemu_ce_set_next_event,
+	};
+
+	clockevents_config_and_register(ce, NSEC_PER_SEC, 1000, LONG_MAX);
+}
+
+
 void __init
 common_init_rtc(void)
 {
@@ -329,6 +398,15 @@ time_init(void)
 	unsigned long cycle_freq, tolerance;
 	long diff;
 
+	if (alpha_using_qemu) {
+		clocksource_register_hz(&qemu_cs, NSEC_PER_SEC);
+		init_qemu_clockevent();
+
+		timer_irqaction.handler = qemu_timer_interrupt;
+		init_rtc_irq();
+		return;
+	}
+
 	/* Calibrate CPU clock -- attempt #1.  */
 	if (!est_cycle_freq)
 		est_cycle_freq = validate_cc_value(calibrate_cc_with_pit());
@@ -371,7 +449,17 @@ time_init(void)
 
 	/* Startup the timer source. */
 	alpha_mv.init_rtc();
+	init_rtc_clockevent();
+}
 
-	/* Start up the clock event device.  */
-	init_clockevent();
+/* Initialize the clock_event_device for secondary cpus.  */
+#ifdef CONFIG_SMP
+void __init
+init_clockevent(void)
+{
+	if (alpha_using_qemu)
+		init_qemu_clockevent();
+	else
+		init_rtc_clockevent();
 }
+#endif
-- 
cgit 


From 6e22f8f2e8d81dcab4c40bc229d53388fda63dbc Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Tue, 10 Sep 2013 10:58:12 +0100
Subject: alpha: perf: fix out-of-bounds array access triggered from raw event

Vince's perf fuzzer uncovered the following issue on Alpha:

Unable to handle kernel paging request at virtual address fffffbfe4e46a0e8
CPU 0 perf_fuzzer(1278): Oops 0
pc = [<fffffc000031fbc0>]  ra = [<fffffc000031ff54>]  ps = 0007    Not tainted
pc is at alpha_perf_event_set_period+0x60/0xf0
ra is at alpha_pmu_enable+0x1a4/0x1c0
v0 = 0000000000000000  t0 = 00000000000fffff  t1 = fffffc007b3f5800
t2 = fffffbff275faa94  t3 = ffffffffc9b9bd89  t4 = fffffbfe4e46a098
t5 = 0000000000000020  t6 = fffffbfe4e46a0b8  t7 = fffffc007f4c8000
s0 = 0000000000000000  s1 = fffffc0001b0c018  s2 = fffffc0001b0c020
s3 = fffffc007b3f5800  s4 = 0000000000000001  s5 = ffffffffc9b9bd85
s6 = 0000000000000001
a0 = 0000000000000006  a1 = fffffc007b3f5908  a2 = fffffbfe4e46a098
a3 = 00000005000108c0  a4 = 0000000000000000  a5 = 0000000000000000
t8 = 0000000000000001  t9 = 0000000000000001  t10= 0000000027829f6f
t11= 0000000000000020  pv = fffffc000031fb60  at = fffffc0000950900
gp = fffffc0000940900  sp = fffffc007f4cbca8
Disabling lock debugging due to kernel taint
Trace:
[<fffffc000031ff54>] alpha_pmu_enable+0x1a4/0x1c0
[<fffffc000039f4e8>] perf_pmu_enable+0x48/0x60
[<fffffc00003a0d6c>] __perf_install_in_context+0x15c/0x230
[<fffffc000039d1f0>] remote_function+0x80/0xa0
[<fffffc00003a0c10>] __perf_install_in_context+0x0/0x230
[<fffffc000037b7e4>] smp_call_function_single+0x1b4/0x1d0
[<fffffc000039bb70>] task_function_call+0x60/0x80
[<fffffc00003a0c10>] __perf_install_in_context+0x0/0x230
[<fffffc000039bb44>] task_function_call+0x34/0x80
[<fffffc000039d3fc>] perf_install_in_context+0x9c/0x150
[<fffffc00003a0c10>] __perf_install_in_context+0x0/0x230
[<fffffc00003a5100>] SYSC_perf_event_open+0x360/0xac0
[<fffffc00003110c4>] entSys+0xa4/0xc0

This is due to the raw event encoding being used as an index directly
into the ev67_mapping array, rather than being validated against the
ev67_pmc_event_type enumeration instead. Unlike other architectures,
which allow raw events to propagate into the hardware counters with
little interference, the limited number of events on Alpha and the
strict event <-> counter relationships mean that raw events actually
correspond to the Linux-specific Alpha events, rather than anything
defined by the architecture.

This patch adds a new callback to alpha_pmu_t for validating the raw
event encoding with the Linux event types for the PMU, preventing the
out-of-bounds array access.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Michael Cree <mcree@orcon.net.nz>
Acked-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---
 arch/alpha/kernel/perf_event.c | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

diff --git a/arch/alpha/kernel/perf_event.c b/arch/alpha/kernel/perf_event.c
index d821b17047e0..c52e7f0ee5f6 100644
--- a/arch/alpha/kernel/perf_event.c
+++ b/arch/alpha/kernel/perf_event.c
@@ -83,6 +83,8 @@ struct alpha_pmu_t {
 	long pmc_left[3];
 	 /* Subroutine for allocation of PMCs.  Enforces constraints. */
 	int (*check_constraints)(struct perf_event **, unsigned long *, int);
+	/* Subroutine for checking validity of a raw event for this PMU. */
+	int (*raw_event_valid)(u64 config);
 };
 
 /*
@@ -203,6 +205,12 @@ success:
 }
 
 
+static int ev67_raw_event_valid(u64 config)
+{
+	return config >= EV67_CYCLES && config < EV67_LAST_ET;
+};
+
+
 static const struct alpha_pmu_t ev67_pmu = {
 	.event_map = ev67_perfmon_event_map,
 	.max_events = ARRAY_SIZE(ev67_perfmon_event_map),
@@ -211,7 +219,8 @@ static const struct alpha_pmu_t ev67_pmu = {
 	.pmc_count_mask = {EV67_PCTR_0_COUNT_MASK,  EV67_PCTR_1_COUNT_MASK,  0},
 	.pmc_max_period = {(1UL<<20) - 1, (1UL<<20) - 1, 0},
 	.pmc_left = {16, 4, 0},
-	.check_constraints = ev67_check_constraints
+	.check_constraints = ev67_check_constraints,
+	.raw_event_valid = ev67_raw_event_valid,
 };
 
 
@@ -609,7 +618,9 @@ static int __hw_perf_event_init(struct perf_event *event)
 	} else if (attr->type == PERF_TYPE_HW_CACHE) {
 		return -EOPNOTSUPP;
 	} else if (attr->type == PERF_TYPE_RAW) {
-		ev = attr->config & 0xff;
+		if (!alpha_pmu->raw_event_valid(attr->config))
+			return -EINVAL;
+		ev = attr->config;
 	} else {
 		return -EOPNOTSUPP;
 	}
-- 
cgit 


From 5cfe8f1ba5eebe6f4b6e5858cdb1a5be4f3272a6 Mon Sep 17 00:00:00 2001
From: Jay Estabrook <jay.estabrook@gmail.com>
Date: Sat, 16 Nov 2013 16:45:31 -0800
Subject: alpha: Prevent a NULL ptr dereference in csum_partial_copy.

Introduced by 3ddc5b46a8e90f3c92 ("kernel-wide: fix missing validations
on __get/__put/__copy_to/__copy_from_user()").

Also fix some other places which could be problematic in a similar way,
although they hadn't been proved so, as far as I can tell.

Cc: Michael Cree <mcree@orcon.net.nz>
Signed-off-by: Matt Turner <mattst88@gmail.com>
---
 arch/alpha/lib/csum_partial_copy.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/alpha/lib/csum_partial_copy.c b/arch/alpha/lib/csum_partial_copy.c
index ffb19b7da999..ff3c10721caf 100644
--- a/arch/alpha/lib/csum_partial_copy.c
+++ b/arch/alpha/lib/csum_partial_copy.c
@@ -130,7 +130,7 @@ csum_partial_cfu_aligned(const unsigned long __user *src, unsigned long *dst,
 		*dst = word | tmp;
 		checksum += carry;
 	}
-	if (err) *errp = err;
+	if (err && errp) *errp = err;
 	return checksum;
 }
 
@@ -185,7 +185,7 @@ csum_partial_cfu_dest_aligned(const unsigned long __user *src,
 		*dst = word | tmp;
 		checksum += carry;
 	}
-	if (err) *errp = err;
+	if (err && errp) *errp = err;
 	return checksum;
 }
 
@@ -242,7 +242,7 @@ csum_partial_cfu_src_aligned(const unsigned long __user *src,
 	stq_u(partial_dest | second_dest, dst);
 out:
 	checksum += carry;
-	if (err) *errp = err;
+	if (err && errp) *errp = err;
 	return checksum;
 }
 
@@ -325,7 +325,7 @@ csum_partial_cfu_unaligned(const unsigned long __user * src,
 		stq_u(partial_dest | word | second_dest, dst);
 		checksum += carry;
 	}
-	if (err) *errp = err;
+	if (err && errp) *errp = err;
 	return checksum;
 }
 
@@ -339,7 +339,7 @@ csum_partial_copy_from_user(const void __user *src, void *dst, int len,
 
 	if (len) {
 		if (!access_ok(VERIFY_READ, src, len)) {
-			*errp = -EFAULT;
+			if (errp) *errp = -EFAULT;
 			memset(dst, 0, len);
 			return sum;
 		}
-- 
cgit 


From 40c2729bab48e2832b17c1fa8af9db60e776131b Mon Sep 17 00:00:00 2001
From: Christoffer Dall <christoffer.dall@linaro.org>
Date: Fri, 15 Nov 2013 13:14:12 -0800
Subject: arm/arm64: KVM: Fix hyp mappings of vmalloc regions

Using virt_to_phys on percpu mappings is horribly wrong as it may be
backed by vmalloc.  Introduce kvm_kaddr_to_phys which translates both
types of valid kernel addresses to the corresponding physical address.

At the same time resolves a typing issue where we were storing the
physical address as a 32 bit unsigned long (on arm), truncating the
physical address for addresses above the 4GB limit.  This caused
breakage on Keystone.

Cc: <stable@vger.kernel.org>	[3.10+]
Reported-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Tested-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
---
 arch/arm/kvm/mmu.c | 34 ++++++++++++++++++++++++++++------
 1 file changed, 28 insertions(+), 6 deletions(-)

diff --git a/arch/arm/kvm/mmu.c b/arch/arm/kvm/mmu.c
index b0de86b56c13..cb79a5dd6d96 100644
--- a/arch/arm/kvm/mmu.c
+++ b/arch/arm/kvm/mmu.c
@@ -307,6 +307,17 @@ out:
 	return err;
 }
 
+static phys_addr_t kvm_kaddr_to_phys(void *kaddr)
+{
+	if (!is_vmalloc_addr(kaddr)) {
+		BUG_ON(!virt_addr_valid(kaddr));
+		return __pa(kaddr);
+	} else {
+		return page_to_phys(vmalloc_to_page(kaddr)) +
+		       offset_in_page(kaddr);
+	}
+}
+
 /**
  * create_hyp_mappings - duplicate a kernel virtual address range in Hyp mode
  * @from:	The virtual kernel start address of the range
@@ -318,16 +329,27 @@ out:
  */
 int create_hyp_mappings(void *from, void *to)
 {
-	unsigned long phys_addr = virt_to_phys(from);
+	phys_addr_t phys_addr;
+	unsigned long virt_addr;
 	unsigned long start = KERN_TO_HYP((unsigned long)from);
 	unsigned long end = KERN_TO_HYP((unsigned long)to);
 
-	/* Check for a valid kernel memory mapping */
-	if (!virt_addr_valid(from) || !virt_addr_valid(to - 1))
-		return -EINVAL;
+	start = start & PAGE_MASK;
+	end = PAGE_ALIGN(end);
 
-	return __create_hyp_mappings(hyp_pgd, start, end,
-				     __phys_to_pfn(phys_addr), PAGE_HYP);
+	for (virt_addr = start; virt_addr < end; virt_addr += PAGE_SIZE) {
+		int err;
+
+		phys_addr = kvm_kaddr_to_phys(from + virt_addr - start);
+		err = __create_hyp_mappings(hyp_pgd, virt_addr,
+					    virt_addr + PAGE_SIZE,
+					    __phys_to_pfn(phys_addr),
+					    PAGE_HYP);
+		if (err)
+			return err;
+	}
+
+	return 0;
 }
 
 /**
-- 
cgit 


From 9d1ee8ce92e16c6aa0a3fd91ee8ed9e403b3a2eb Mon Sep 17 00:00:00 2001
From: Richard Weinberger <richard@nod.at>
Date: Mon, 23 Sep 2013 17:38:01 +0200
Subject: um: Rewrite show_stack()

Currently on UML stack traces are not very reliable and both
x86 and x86_64 have their on implementations.
This patch unifies both and adds support to outline unreliable
functions calls.

Signed-off-by: Richard Weinberger <richard@nod.at>
---
 arch/um/kernel/sysrq.c         | 85 ++++++++++++++++++++++++++----------------
 arch/um/kernel/um_arch.c       |  1 -
 arch/x86/um/asm/processor_32.h |  5 +++
 arch/x86/um/asm/processor_64.h |  5 +++
 arch/x86/um/sysrq_32.c         | 66 --------------------------------
 arch/x86/um/sysrq_64.c         |  8 +---
 6 files changed, 64 insertions(+), 106 deletions(-)

diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c
index 0dc4d1c6f98a..33cc72e26c6e 100644
--- a/arch/um/kernel/sysrq.c
+++ b/arch/um/kernel/sysrq.c
@@ -1,6 +1,10 @@
 /*
  * Copyright (C) 2001 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
- * Licensed under the GPL
+ * Copyright (C) 2013 Richard Weinberger <richrd@nod.at>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
  */
 
 #include <linux/kallsyms.h>
@@ -9,58 +13,75 @@
 #include <linux/sched.h>
 #include <asm/sysrq.h>
 
-/* Catch non-i386 SUBARCH's. */
-#if !defined(CONFIG_UML_X86) || defined(CONFIG_64BIT)
-void show_trace(struct task_struct *task, unsigned long * stack)
+struct stack_frame {
+	struct stack_frame *next_frame;
+	unsigned long return_address;
+};
+
+static void print_stack_trace(unsigned long *sp, unsigned long bp)
 {
+	int reliable;
 	unsigned long addr;
+	struct stack_frame *frame = (struct stack_frame *)bp;
 
-	if (!stack) {
-		stack = (unsigned long*) &stack;
-		WARN_ON(1);
-	}
-
-	printk(KERN_INFO "Call Trace: \n");
-	while (((long) stack & (THREAD_SIZE-1)) != 0) {
-		addr = *stack;
+	printk(KERN_INFO "Call Trace:\n");
+	while (((long) sp & (THREAD_SIZE-1)) != 0) {
+		addr = *sp;
 		if (__kernel_text_address(addr)) {
-			printk(KERN_INFO "%08lx:  [<%08lx>]",
-			       (unsigned long) stack, addr);
-			print_symbol(KERN_CONT " %s", addr);
+			reliable = 0;
+			if ((unsigned long) sp == bp + sizeof(long)) {
+				frame = frame ? frame->next_frame : NULL;
+				bp = (unsigned long)frame;
+				reliable = 1;
+			}
+
+			printk(KERN_INFO " [<%08lx>]", addr);
+			printk(KERN_CONT " %s", reliable ? "" : "? ");
+			print_symbol(KERN_CONT "%s", addr);
 			printk(KERN_CONT "\n");
 		}
-		stack++;
+		sp++;
 	}
 	printk(KERN_INFO "\n");
 }
-#endif
 
 /*Stolen from arch/i386/kernel/traps.c */
 static const int kstack_depth_to_print = 24;
 
-/* This recently started being used in arch-independent code too, as in
- * kernel/sched/core.c.*/
-void show_stack(struct task_struct *task, unsigned long *esp)
+static unsigned long get_frame_pointer(struct task_struct *task)
+{
+	if (!task || task == current)
+		return current_bp();
+	else
+		return KSTK_EBP(task);
+}
+
+void show_stack(struct task_struct *task, unsigned long *stack)
 {
-	unsigned long *stack;
+	unsigned long *sp = stack, bp = 0;
 	int i;
 
-	if (esp == NULL) {
-		if (task != current && task != NULL) {
-			esp = (unsigned long *) KSTK_ESP(task);
-		} else {
-			esp = (unsigned long *) &esp;
-		}
+#ifdef CONFIG_FRAME_POINTER
+	bp = get_frame_pointer(task);
+#endif
+
+	if (!stack) {
+		if (!task || task == current)
+			sp = current_sp();
+		else
+			sp = (unsigned long *)KSTK_ESP(task);
 	}
 
-	stack = esp;
+	printk(KERN_INFO "Stack:\n");
+	stack = sp;
 	for (i = 0; i < kstack_depth_to_print; i++) {
 		if (kstack_end(stack))
 			break;
-		if (i && ((i % 8) == 0))
-			printk(KERN_INFO "       ");
-		printk(KERN_CONT "%08lx ", *stack++);
+		if (i && ((i % STACKSLOTS_PER_LINE) == 0))
+			printk(KERN_CONT "\n");
+		printk(KERN_CONT " %08lx", *stack++);
 	}
+	printk(KERN_CONT "\n");
 
-	show_trace(task, esp);
+	print_stack_trace(sp, bp);
 }
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index 87df5e3acc26..b9dd13e6f206 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -234,7 +234,6 @@ static int panic_exit(struct notifier_block *self, unsigned long unused1,
 		      void *unused2)
 {
 	bust_spinlocks(1);
-	show_regs(&(current->thread.regs));
 	bust_spinlocks(0);
 	uml_exitcode = 1;
 	os_dump_core();
diff --git a/arch/x86/um/asm/processor_32.h b/arch/x86/um/asm/processor_32.h
index 6c6689e574ce..c112de81c9e1 100644
--- a/arch/x86/um/asm/processor_32.h
+++ b/arch/x86/um/asm/processor_32.h
@@ -33,6 +33,8 @@ struct arch_thread {
 	.faultinfo		= { 0, 0, 0 } \
 }
 
+#define STACKSLOTS_PER_LINE 8
+
 static inline void arch_flush_thread(struct arch_thread *thread)
 {
 	/* Clear any TLS still hanging */
@@ -53,4 +55,7 @@ static inline void arch_copy_thread(struct arch_thread *from,
 #define current_text_addr() \
 	({ void *pc; __asm__("movl $1f,%0\n1:":"=g" (pc)); pc; })
 
+#define current_sp() ({ void *sp; __asm__("movl %%esp, %0" : "=r" (sp) : ); sp; })
+#define current_bp() ({ unsigned long bp; __asm__("movl %%ebp, %0" : "=r" (bp) : ); bp; })
+
 #endif
diff --git a/arch/x86/um/asm/processor_64.h b/arch/x86/um/asm/processor_64.h
index 4b02a8455bd1..c3be85205a65 100644
--- a/arch/x86/um/asm/processor_64.h
+++ b/arch/x86/um/asm/processor_64.h
@@ -19,6 +19,8 @@ struct arch_thread {
 			   .fs			= 0, \
 			   .faultinfo		= { 0, 0, 0 } }
 
+#define STACKSLOTS_PER_LINE 4
+
 static inline void arch_flush_thread(struct arch_thread *thread)
 {
 }
@@ -32,4 +34,7 @@ static inline void arch_copy_thread(struct arch_thread *from,
 #define current_text_addr() \
 	({ void *pc; __asm__("movq $1f,%0\n1:":"=g" (pc)); pc; })
 
+#define current_sp() ({ void *sp; __asm__("movq %%rsp, %0" : "=r" (sp) : ); sp; })
+#define current_bp() ({ unsigned long bp; __asm__("movq %%rbp, %0" : "=r" (bp) : ); bp; })
+
 #endif
diff --git a/arch/x86/um/sysrq_32.c b/arch/x86/um/sysrq_32.c
index c9bee5b8c0d3..16ee0e450e3e 100644
--- a/arch/x86/um/sysrq_32.c
+++ b/arch/x86/um/sysrq_32.c
@@ -30,70 +30,4 @@ void show_regs(struct pt_regs *regs)
         printk(" DS: %04lx ES: %04lx\n",
 	       0xffff & PT_REGS_DS(regs), 
 	       0xffff & PT_REGS_ES(regs));
-
-        show_trace(NULL, (unsigned long *) &regs);
 }
-
-/* Copied from i386. */
-static inline int valid_stack_ptr(struct thread_info *tinfo, void *p)
-{
-	return	p > (void *)tinfo &&
-		p < (void *)tinfo + THREAD_SIZE - 3;
-}
-
-/* Adapted from i386 (we also print the address we read from). */
-static inline unsigned long print_context_stack(struct thread_info *tinfo,
-				unsigned long *stack, unsigned long ebp)
-{
-	unsigned long addr;
-
-#ifdef CONFIG_FRAME_POINTER
-	while (valid_stack_ptr(tinfo, (void *)ebp)) {
-		addr = *(unsigned long *)(ebp + 4);
-		printk("%08lx:  [<%08lx>]", ebp + 4, addr);
-		print_symbol(" %s", addr);
-		printk("\n");
-		ebp = *(unsigned long *)ebp;
-	}
-#else
-	while (valid_stack_ptr(tinfo, stack)) {
-		addr = *stack;
-		if (__kernel_text_address(addr)) {
-			printk("%08lx:  [<%08lx>]", (unsigned long) stack, addr);
-			print_symbol(" %s", addr);
-			printk("\n");
-		}
-		stack++;
-	}
-#endif
-	return ebp;
-}
-
-void show_trace(struct task_struct* task, unsigned long * stack)
-{
-	unsigned long ebp;
-	struct thread_info *context;
-
-	/* Turn this into BUG_ON if possible. */
-	if (!stack) {
-		stack = (unsigned long*) &stack;
-		printk("show_trace: got NULL stack, implicit assumption task == current");
-		WARN_ON(1);
-	}
-
-	if (!task)
-		task = current;
-
-	if (task != current) {
-		ebp = (unsigned long) KSTK_EBP(task);
-	} else {
-		asm ("movl %%ebp, %0" : "=r" (ebp) : );
-	}
-
-	context = (struct thread_info *)
-		((unsigned long)stack & (~(THREAD_SIZE - 1)));
-	print_context_stack(context, stack, ebp);
-
-	printk("\n");
-}
-
diff --git a/arch/x86/um/sysrq_64.c b/arch/x86/um/sysrq_64.c
index a0e7fb1134a0..38b4e4abd0f8 100644
--- a/arch/x86/um/sysrq_64.c
+++ b/arch/x86/um/sysrq_64.c
@@ -12,7 +12,7 @@
 #include <asm/ptrace.h>
 #include <asm/sysrq.h>
 
-void __show_regs(struct pt_regs *regs)
+void show_regs(struct pt_regs *regs)
 {
 	printk("\n");
 	print_modules();
@@ -33,9 +33,3 @@ void __show_regs(struct pt_regs *regs)
 	printk(KERN_INFO "R13: %016lx R14: %016lx R15: %016lx\n",
 	       PT_REGS_R13(regs), PT_REGS_R14(regs), PT_REGS_R15(regs));
 }
-
-void show_regs(struct pt_regs *regs)
-{
-	__show_regs(regs);
-	show_trace(current, (unsigned long *) &regs);
-}
-- 
cgit 


From f72c22e45e8f8fe78c7f793d983bee5bed63497e Mon Sep 17 00:00:00 2001
From: Richard Weinberger <richard@nod.at>
Date: Mon, 23 Sep 2013 17:38:02 +0200
Subject: um: Make stack trace reliable against kernel mode faults

As UML uses an alternative signal stack we cannot use
the current stack pointer for stack dumping if UML itself
dies by SIGSEGV. To bypass this issue we save regs taken
from mcontext in our segv handler into thread_struct and
use these regs to obtain the stack pointer in show_stack().

Signed-off-by: Richard Weinberger <richard@nod.at>
---
 arch/um/include/asm/processor-generic.h |  1 +
 arch/um/include/shared/os.h             |  1 +
 arch/um/kernel/sysrq.c                  | 32 +++++++++++++++++++++++---------
 arch/um/kernel/trap.c                   | 14 +++++++++++---
 arch/um/os-Linux/signal.c               |  8 ++++++++
 5 files changed, 44 insertions(+), 12 deletions(-)

diff --git a/arch/um/include/asm/processor-generic.h b/arch/um/include/asm/processor-generic.h
index c03cd5a02364..90469031297b 100644
--- a/arch/um/include/asm/processor-generic.h
+++ b/arch/um/include/asm/processor-generic.h
@@ -21,6 +21,7 @@ struct mm_struct;
 struct thread_struct {
 	struct task_struct *saved_task;
 	struct pt_regs regs;
+	struct pt_regs *segv_regs;
 	int singlestep_syscall;
 	void *fault_addr;
 	jmp_buf *fault_catcher;
diff --git a/arch/um/include/shared/os.h b/arch/um/include/shared/os.h
index 021104d98cb3..75298d3358e7 100644
--- a/arch/um/include/shared/os.h
+++ b/arch/um/include/shared/os.h
@@ -227,6 +227,7 @@ extern void block_signals(void);
 extern void unblock_signals(void);
 extern int get_signals(void);
 extern int set_signals(int enable);
+extern int os_is_signal_stack(void);
 
 /* util.c */
 extern void stack_protections(unsigned long address);
diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c
index 33cc72e26c6e..7122bf9c753e 100644
--- a/arch/um/kernel/sysrq.c
+++ b/arch/um/kernel/sysrq.c
@@ -12,6 +12,7 @@
 #include <linux/module.h>
 #include <linux/sched.h>
 #include <asm/sysrq.h>
+#include <os.h>
 
 struct stack_frame {
 	struct stack_frame *next_frame;
@@ -48,29 +49,42 @@ static void print_stack_trace(unsigned long *sp, unsigned long bp)
 /*Stolen from arch/i386/kernel/traps.c */
 static const int kstack_depth_to_print = 24;
 
-static unsigned long get_frame_pointer(struct task_struct *task)
+static unsigned long get_frame_pointer(struct task_struct *task,
+				       struct pt_regs *segv_regs)
 {
 	if (!task || task == current)
-		return current_bp();
+		return segv_regs ? PT_REGS_BP(segv_regs) : current_bp();
 	else
 		return KSTK_EBP(task);
 }
 
+static unsigned long *get_stack_pointer(struct task_struct *task,
+					struct pt_regs *segv_regs)
+{
+	if (!task || task == current)
+		return segv_regs ? (unsigned long *)PT_REGS_SP(segv_regs) : current_sp();
+	else
+		return (unsigned long *)KSTK_ESP(task);
+}
+
 void show_stack(struct task_struct *task, unsigned long *stack)
 {
 	unsigned long *sp = stack, bp = 0;
+	struct pt_regs *segv_regs = current->thread.segv_regs;
 	int i;
 
+	if (!segv_regs && os_is_signal_stack()) {
+		printk(KERN_ERR "Received SIGSEGV in SIGSEGV handler,"
+				" aborting stack trace!\n");
+		return;
+	}
+
 #ifdef CONFIG_FRAME_POINTER
-	bp = get_frame_pointer(task);
+	bp = get_frame_pointer(task, segv_regs);
 #endif
 
-	if (!stack) {
-		if (!task || task == current)
-			sp = current_sp();
-		else
-			sp = (unsigned long *)KSTK_ESP(task);
-	}
+	if (!stack)
+		sp = get_stack_pointer(task, segv_regs);
 
 	printk(KERN_INFO "Stack:\n");
 	stack = sp;
diff --git a/arch/um/kernel/trap.c b/arch/um/kernel/trap.c
index 5c3aef74237f..974b87474a99 100644
--- a/arch/um/kernel/trap.c
+++ b/arch/um/kernel/trap.c
@@ -206,9 +206,12 @@ unsigned long segv(struct faultinfo fi, unsigned long ip, int is_user,
 	int is_write = FAULT_WRITE(fi);
 	unsigned long address = FAULT_ADDRESS(fi);
 
+	if (regs)
+		current->thread.segv_regs = container_of(regs, struct pt_regs, regs);
+
 	if (!is_user && (address >= start_vm) && (address < end_vm)) {
 		flush_tlb_kernel_vm();
-		return 0;
+		goto out;
 	}
 	else if (current->mm == NULL) {
 		show_regs(container_of(regs, struct pt_regs, regs));
@@ -230,7 +233,7 @@ unsigned long segv(struct faultinfo fi, unsigned long ip, int is_user,
 
 	catcher = current->thread.fault_catcher;
 	if (!err)
-		return 0;
+		goto out;
 	else if (catcher != NULL) {
 		current->thread.fault_addr = (void *) address;
 		UML_LONGJMP(catcher, 1);
@@ -238,7 +241,7 @@ unsigned long segv(struct faultinfo fi, unsigned long ip, int is_user,
 	else if (current->thread.fault_addr != NULL)
 		panic("fault_addr set but no fault catcher");
 	else if (!is_user && arch_fixup(ip, regs))
-		return 0;
+		goto out;
 
 	if (!is_user) {
 		show_regs(container_of(regs, struct pt_regs, regs));
@@ -262,6 +265,11 @@ unsigned long segv(struct faultinfo fi, unsigned long ip, int is_user,
 		current->thread.arch.faultinfo = fi;
 		force_sig_info(SIGSEGV, &si, current);
 	}
+
+out:
+	if (regs)
+		current->thread.segv_regs = NULL;
+
 	return 0;
 }
 
diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c
index 905924b773d3..7b605e4dfffa 100644
--- a/arch/um/os-Linux/signal.c
+++ b/arch/um/os-Linux/signal.c
@@ -304,3 +304,11 @@ int set_signals(int enable)
 
 	return ret;
 }
+
+int os_is_signal_stack(void)
+{
+	stack_t ss;
+	sigaltstack(NULL, &ss);
+
+	return ss.ss_flags & SS_ONSTACK;
+}
-- 
cgit 


From a1850e9c7282db1c19a18093a945d5e84bfe7418 Mon Sep 17 00:00:00 2001
From: Richard Weinberger <richard@nod.at>
Date: Mon, 23 Sep 2013 17:38:03 +0200
Subject: um: Get rid of thread_struct->saved_task

As we have a sane show_stack() now, we can drop
the ->saved_task hack.

Signed-off-by: Richard Weinberger <richard@nod.at>
---
 arch/um/drivers/mconsole_kern.c         |  6 ++----
 arch/um/include/asm/processor-generic.h |  1 -
 arch/um/kernel/process.c                | 15 ++-------------
 3 files changed, 4 insertions(+), 18 deletions(-)

diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c
index 3df3bd544492..29880c9b324e 100644
--- a/arch/um/drivers/mconsole_kern.c
+++ b/arch/um/drivers/mconsole_kern.c
@@ -645,11 +645,9 @@ void mconsole_sysrq(struct mc_request *req)
 
 static void stack_proc(void *arg)
 {
-	struct task_struct *from = current, *to = arg;
+	struct task_struct *task = arg;
 
-	to->thread.saved_task = from;
-	rcu_user_hooks_switch(from, to);
-	switch_to(from, to, from);
+	show_stack(task, NULL);
 }
 
 /*
diff --git a/arch/um/include/asm/processor-generic.h b/arch/um/include/asm/processor-generic.h
index 90469031297b..d89b02bb6262 100644
--- a/arch/um/include/asm/processor-generic.h
+++ b/arch/um/include/asm/processor-generic.h
@@ -19,7 +19,6 @@ struct task_struct;
 struct mm_struct;
 
 struct thread_struct {
-	struct task_struct *saved_task;
 	struct pt_regs regs;
 	struct pt_regs *segv_regs;
 	int singlestep_syscall;
diff --git a/arch/um/kernel/process.c b/arch/um/kernel/process.c
index bbcef522bcb1..eecc4142764c 100644
--- a/arch/um/kernel/process.c
+++ b/arch/um/kernel/process.c
@@ -82,19 +82,8 @@ void *__switch_to(struct task_struct *from, struct task_struct *to)
 	to->thread.prev_sched = from;
 	set_current(to);
 
-	do {
-		current->thread.saved_task = NULL;
-
-		switch_threads(&from->thread.switch_buf,
-			       &to->thread.switch_buf);
-
-		arch_switch_to(current);
-
-		if (current->thread.saved_task)
-			show_regs(&(current->thread.regs));
-		to = current->thread.saved_task;
-		from = current;
-	} while (current->thread.saved_task);
+	switch_threads(&from->thread.switch_buf, &to->thread.switch_buf);
+	arch_switch_to(current);
 
 	return current->thread.prev_sched;
 }
-- 
cgit 


From e96d1c3695d6f5fde010d27e2a245a6656de688c Mon Sep 17 00:00:00 2001
From: Richard Weinberger <richard@nod.at>
Date: Mon, 23 Sep 2013 17:38:04 +0200
Subject: um: Make kstack_depth_to_print conform to arch/x86

Signed-off-by: Richard Weinberger <richard@nod.at>
---
 arch/um/kernel/sysrq.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c
index 7122bf9c753e..4d6fdf68edf3 100644
--- a/arch/um/kernel/sysrq.c
+++ b/arch/um/kernel/sysrq.c
@@ -46,9 +46,6 @@ static void print_stack_trace(unsigned long *sp, unsigned long bp)
 	printk(KERN_INFO "\n");
 }
 
-/*Stolen from arch/i386/kernel/traps.c */
-static const int kstack_depth_to_print = 24;
-
 static unsigned long get_frame_pointer(struct task_struct *task,
 				       struct pt_regs *segv_regs)
 {
@@ -88,7 +85,7 @@ void show_stack(struct task_struct *task, unsigned long *stack)
 
 	printk(KERN_INFO "Stack:\n");
 	stack = sp;
-	for (i = 0; i < kstack_depth_to_print; i++) {
+	for (i = 0; i < 3 * STACKSLOTS_PER_LINE; i++) {
 		if (kstack_end(stack))
 			break;
 		if (i && ((i % STACKSLOTS_PER_LINE) == 0))
-- 
cgit 


From e40f04d040c66d8312ecfaf6091b2da78531276c Mon Sep 17 00:00:00 2001
From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Fri, 27 Sep 2013 09:44:46 +0530
Subject: arch/um: make it work with defconfig and x86_64

arch/um/defconfig only lists one default configuration, and that applies
only to the i386 architecture.  Replace it with two minimal
configuration files generated using `make savedefconfig`:

  i386_defconfig and x86_64_defconfig

The build scripts now require two updates:

1. um's Kconfig (arch/x86/um/Kconfig) should specify an ARCH_DEFCONFIG
   section explicitly pointing to these scripts if the required
   variables are set.  Take care to remove the DEFCONFIG_LIST section
   defined in the included file arch/um/Kconfig.common.

2. um's Makefile (arch/um/Makefile) should set KBUILD_DEFCONFIG properly
   for the top-level Makefile to pick up.  Copy the logic in
   arch/x86/Makefile to properly pick the defconfig file depending on
   the actual architecture; except we're working with $SUBARCH here,
   instead of $ARCH.

Now, you can do:

  $ ARCH=um make defconfig
  $ ARCH=um make

and successfully build User-Mode Linux on an x86_64 box in default
configuration.

Cc: Richard Weinberger <richard@nod.at>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
---
 arch/um/Kconfig.common           |   5 -
 arch/um/Makefile                 |  11 +
 arch/um/configs/i386_defconfig   |  76 ++++
 arch/um/configs/x86_64_defconfig |  75 ++++
 arch/um/defconfig                | 899 ---------------------------------------
 arch/x86/um/Kconfig              |   5 +
 6 files changed, 167 insertions(+), 904 deletions(-)
 create mode 100644 arch/um/configs/i386_defconfig
 create mode 100644 arch/um/configs/x86_64_defconfig
 delete mode 100644 arch/um/defconfig

diff --git a/arch/um/Kconfig.common b/arch/um/Kconfig.common
index 8ddea1f8006a..21ca44c4f6d5 100644
--- a/arch/um/Kconfig.common
+++ b/arch/um/Kconfig.common
@@ -1,8 +1,3 @@
-config DEFCONFIG_LIST
-	string
-	option defconfig_list
-	default "arch/$ARCH/defconfig"
-
 config UML
 	bool
 	default y
diff --git a/arch/um/Makefile b/arch/um/Makefile
index 133f7de2a13d..48d92bbe62e9 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -6,6 +6,17 @@
 # Licensed under the GPL
 #
 
+# select defconfig based on actual architecture
+ifeq ($(SUBARCH),x86)
+  ifeq ($(shell uname -m),x86_64)
+        KBUILD_DEFCONFIG := x86_64_defconfig
+  else
+        KBUILD_DEFCONFIG := i386_defconfig
+  endif
+else
+        KBUILD_DEFCONFIG := $(SUBARCH)_defconfig
+endif
+
 ARCH_DIR := arch/um
 OS := $(shell uname -s)
 # We require bash because the vmlinux link and loader script cpp use bash
diff --git a/arch/um/configs/i386_defconfig b/arch/um/configs/i386_defconfig
new file mode 100644
index 000000000000..a12bf68c9f3a
--- /dev/null
+++ b/arch/um/configs/i386_defconfig
@@ -0,0 +1,76 @@
+CONFIG_3_LEVEL_PGTABLES=y
+# CONFIG_COMPACTION is not set
+CONFIG_BINFMT_MISC=m
+CONFIG_HOSTFS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_KERNEL_STACK_ORDER=1
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_CGROUPS=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CPUSETS=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_RESOURCE_COUNTERS=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_BLK_CGROUP=y
+# CONFIG_PID_NS is not set
+CONFIG_SYSFS_DEPRECATED=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SLAB=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_BLK_DEV_BSG is not set
+CONFIG_IOSCHED_CFQ=m
+CONFIG_SSL=y
+CONFIG_NULL_CHAN=y
+CONFIG_PORT_CHAN=y
+CONFIG_PTY_CHAN=y
+CONFIG_TTY_CHAN=y
+CONFIG_XTERM_CHAN=y
+CONFIG_CON_CHAN="pts"
+CONFIG_SSL_CHAN="pts"
+CONFIG_UML_SOUND=m
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_BLK_DEV_UBD=y
+CONFIG_BLK_DEV_LOOP=m
+CONFIG_BLK_DEV_NBD=m
+CONFIG_DUMMY=m
+CONFIG_TUN=m
+CONFIG_PPP=m
+CONFIG_SLIP=m
+CONFIG_LEGACY_PTY_COUNT=32
+# CONFIG_HW_RANDOM is not set
+CONFIG_UML_RANDOM=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+# CONFIG_INET_LRO is not set
+# CONFIG_IPV6 is not set
+CONFIG_UML_NET=y
+CONFIG_UML_NET_ETHERTAP=y
+CONFIG_UML_NET_TUNTAP=y
+CONFIG_UML_NET_SLIP=y
+CONFIG_UML_NET_DAEMON=y
+CONFIG_UML_NET_MCAST=y
+CONFIG_UML_NET_SLIRP=y
+CONFIG_EXT4_FS=y
+CONFIG_REISERFS_FS=y
+CONFIG_QUOTA=y
+CONFIG_AUTOFS4_FS=m
+CONFIG_ISO9660_FS=m
+CONFIG_JOLIET=y
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_NLS=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEBUG_KERNEL=y
diff --git a/arch/um/configs/x86_64_defconfig b/arch/um/configs/x86_64_defconfig
new file mode 100644
index 000000000000..3aab117bd553
--- /dev/null
+++ b/arch/um/configs/x86_64_defconfig
@@ -0,0 +1,75 @@
+# CONFIG_COMPACTION is not set
+CONFIG_BINFMT_MISC=m
+CONFIG_HOSTFS=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_CGROUPS=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CPUSETS=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_RESOURCE_COUNTERS=y
+CONFIG_CGROUP_SCHED=y
+CONFIG_BLK_CGROUP=y
+# CONFIG_PID_NS is not set
+CONFIG_SYSFS_DEPRECATED=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_SLAB=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_BLK_DEV_BSG is not set
+CONFIG_IOSCHED_CFQ=m
+CONFIG_SSL=y
+CONFIG_NULL_CHAN=y
+CONFIG_PORT_CHAN=y
+CONFIG_PTY_CHAN=y
+CONFIG_TTY_CHAN=y
+CONFIG_XTERM_CHAN=y
+CONFIG_CON_CHAN="pts"
+CONFIG_SSL_CHAN="pts"
+CONFIG_UML_SOUND=m
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_BLK_DEV_UBD=y
+CONFIG_BLK_DEV_LOOP=m
+CONFIG_BLK_DEV_NBD=m
+CONFIG_DUMMY=m
+CONFIG_TUN=m
+CONFIG_PPP=m
+CONFIG_SLIP=m
+CONFIG_LEGACY_PTY_COUNT=32
+# CONFIG_HW_RANDOM is not set
+CONFIG_UML_RANDOM=y
+CONFIG_NET=y
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_INET=y
+# CONFIG_INET_LRO is not set
+# CONFIG_IPV6 is not set
+CONFIG_UML_NET=y
+CONFIG_UML_NET_ETHERTAP=y
+CONFIG_UML_NET_TUNTAP=y
+CONFIG_UML_NET_SLIP=y
+CONFIG_UML_NET_DAEMON=y
+CONFIG_UML_NET_MCAST=y
+CONFIG_UML_NET_SLIRP=y
+CONFIG_EXT4_FS=y
+CONFIG_REISERFS_FS=y
+CONFIG_QUOTA=y
+CONFIG_AUTOFS4_FS=m
+CONFIG_ISO9660_FS=m
+CONFIG_JOLIET=y
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_NLS=y
+CONFIG_DEBUG_INFO=y
+CONFIG_FRAME_WARN=1024
+CONFIG_DEBUG_KERNEL=y
diff --git a/arch/um/defconfig b/arch/um/defconfig
deleted file mode 100644
index 2665e6b683f5..000000000000
--- a/arch/um/defconfig
+++ /dev/null
@@ -1,899 +0,0 @@
-#
-# Automatically generated file; DO NOT EDIT.
-# User Mode Linux/i386 3.3.0 Kernel Configuration
-#
-CONFIG_DEFCONFIG_LIST="arch/$ARCH/defconfig"
-CONFIG_UML=y
-CONFIG_MMU=y
-CONFIG_NO_IOMEM=y
-# CONFIG_TRACE_IRQFLAGS_SUPPORT is not set
-CONFIG_LOCKDEP_SUPPORT=y
-# CONFIG_STACKTRACE_SUPPORT is not set
-CONFIG_GENERIC_CALIBRATE_DELAY=y
-CONFIG_GENERIC_BUG=y
-CONFIG_GENERIC_CLOCKEVENTS=y
-CONFIG_HZ=100
-
-#
-# UML-specific options
-#
-
-#
-# Host processor type and features
-#
-# CONFIG_M486 is not set
-# CONFIG_M586 is not set
-# CONFIG_M586TSC is not set
-# CONFIG_M586MMX is not set
-CONFIG_M686=y
-# CONFIG_MPENTIUMII is not set
-# CONFIG_MPENTIUMIII is not set
-# CONFIG_MPENTIUMM is not set
-# CONFIG_MPENTIUM4 is not set
-# CONFIG_MK6 is not set
-# CONFIG_MK7 is not set
-# CONFIG_MK8 is not set
-# CONFIG_MCRUSOE is not set
-# CONFIG_MEFFICEON is not set
-# CONFIG_MWINCHIPC6 is not set
-# CONFIG_MWINCHIP3D is not set
-# CONFIG_MELAN is not set
-# CONFIG_MGEODEGX1 is not set
-# CONFIG_MGEODE_LX is not set
-# CONFIG_MCYRIXIII is not set
-# CONFIG_MVIAC3_2 is not set
-# CONFIG_MVIAC7 is not set
-# CONFIG_MCORE2 is not set
-# CONFIG_MATOM is not set
-# CONFIG_X86_GENERIC is not set
-CONFIG_X86_INTERNODE_CACHE_SHIFT=5
-CONFIG_X86_CMPXCHG=y
-CONFIG_X86_L1_CACHE_SHIFT=5
-CONFIG_X86_XADD=y
-CONFIG_X86_PPRO_FENCE=y
-CONFIG_X86_WP_WORKS_OK=y
-CONFIG_X86_INVLPG=y
-CONFIG_X86_BSWAP=y
-CONFIG_X86_POPAD_OK=y
-CONFIG_X86_USE_PPRO_CHECKSUM=y
-CONFIG_X86_TSC=y
-CONFIG_X86_CMPXCHG64=y
-CONFIG_X86_CMOV=y
-CONFIG_X86_MINIMUM_CPU_FAMILY=5
-CONFIG_CPU_SUP_INTEL=y
-CONFIG_CPU_SUP_CYRIX_32=y
-CONFIG_CPU_SUP_AMD=y
-CONFIG_CPU_SUP_CENTAUR=y
-CONFIG_CPU_SUP_TRANSMETA_32=y
-CONFIG_CPU_SUP_UMC_32=y
-CONFIG_UML_X86=y
-# CONFIG_64BIT is not set
-CONFIG_X86_32=y
-# CONFIG_X86_64 is not set
-# CONFIG_RWSEM_XCHGADD_ALGORITHM is not set
-CONFIG_RWSEM_GENERIC_SPINLOCK=y
-# CONFIG_3_LEVEL_PGTABLES is not set
-CONFIG_ARCH_HAS_SC_SIGNALS=y
-CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA=y
-CONFIG_GENERIC_HWEIGHT=y
-# CONFIG_STATIC_LINK is not set
-CONFIG_SELECT_MEMORY_MODEL=y
-CONFIG_FLATMEM_MANUAL=y
-CONFIG_FLATMEM=y
-CONFIG_FLAT_NODE_MEM_MAP=y
-CONFIG_PAGEFLAGS_EXTENDED=y
-CONFIG_SPLIT_PTLOCK_CPUS=4
-# CONFIG_COMPACTION is not set
-# CONFIG_PHYS_ADDR_T_64BIT is not set
-CONFIG_ZONE_DMA_FLAG=0
-CONFIG_VIRT_TO_BUS=y
-# CONFIG_KSM is not set
-CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
-CONFIG_NEED_PER_CPU_KM=y
-# CONFIG_CLEANCACHE is not set
-CONFIG_TICK_ONESHOT=y
-CONFIG_NO_HZ=y
-CONFIG_HIGH_RES_TIMERS=y
-CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
-CONFIG_LD_SCRIPT_DYN=y
-CONFIG_BINFMT_ELF=y
-CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=y
-CONFIG_HAVE_AOUT=y
-# CONFIG_BINFMT_AOUT is not set
-CONFIG_BINFMT_MISC=m
-CONFIG_HOSTFS=y
-# CONFIG_HPPFS is not set
-CONFIG_MCONSOLE=y
-CONFIG_MAGIC_SYSRQ=y
-CONFIG_KERNEL_STACK_ORDER=0
-# CONFIG_MMAPPER is not set
-CONFIG_NO_DMA=y
-
-#
-# General setup
-#
-CONFIG_EXPERIMENTAL=y
-CONFIG_BROKEN_ON_SMP=y
-CONFIG_INIT_ENV_ARG_LIMIT=128
-CONFIG_CROSS_COMPILE=""
-CONFIG_LOCALVERSION=""
-CONFIG_LOCALVERSION_AUTO=y
-CONFIG_DEFAULT_HOSTNAME="(none)"
-CONFIG_SWAP=y
-CONFIG_SYSVIPC=y
-CONFIG_SYSVIPC_SYSCTL=y
-CONFIG_POSIX_MQUEUE=y
-CONFIG_POSIX_MQUEUE_SYSCTL=y
-CONFIG_BSD_PROCESS_ACCT=y
-# CONFIG_BSD_PROCESS_ACCT_V3 is not set
-# CONFIG_FHANDLE is not set
-# CONFIG_TASKSTATS is not set
-# CONFIG_AUDIT is not set
-
-#
-# IRQ subsystem
-#
-CONFIG_GENERIC_IRQ_SHOW=y
-
-#
-# RCU Subsystem
-#
-CONFIG_TINY_RCU=y
-# CONFIG_PREEMPT_RCU is not set
-# CONFIG_RCU_TRACE is not set
-# CONFIG_TREE_RCU_TRACE is not set
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_LOG_BUF_SHIFT=14
-CONFIG_CGROUPS=y
-# CONFIG_CGROUP_DEBUG is not set
-CONFIG_CGROUP_FREEZER=y
-CONFIG_CGROUP_DEVICE=y
-CONFIG_CPUSETS=y
-CONFIG_PROC_PID_CPUSET=y
-CONFIG_CGROUP_CPUACCT=y
-CONFIG_RESOURCE_COUNTERS=y
-CONFIG_CGROUP_MEMCG=y
-CONFIG_CGROUP_MEMCG_SWAP=y
-# CONFIG_CGROUP_MEMCG_SWAP_ENABLED is not set
-# CONFIG_CGROUP_MEMCG_KMEM is not set
-CONFIG_CGROUP_SCHED=y
-CONFIG_FAIR_GROUP_SCHED=y
-# CONFIG_CFS_BANDWIDTH is not set
-# CONFIG_RT_GROUP_SCHED is not set
-CONFIG_BLK_CGROUP=y
-# CONFIG_DEBUG_BLK_CGROUP is not set
-# CONFIG_CHECKPOINT_RESTORE is not set
-CONFIG_NAMESPACES=y
-CONFIG_UTS_NS=y
-CONFIG_IPC_NS=y
-# CONFIG_USER_NS is not set
-# CONFIG_PID_NS is not set
-CONFIG_NET_NS=y
-# CONFIG_SCHED_AUTOGROUP is not set
-CONFIG_MM_OWNER=y
-CONFIG_SYSFS_DEPRECATED=y
-# CONFIG_SYSFS_DEPRECATED_V2 is not set
-# CONFIG_RELAY is not set
-# CONFIG_BLK_DEV_INITRD is not set
-CONFIG_CC_OPTIMIZE_FOR_SIZE=y
-CONFIG_SYSCTL=y
-CONFIG_ANON_INODES=y
-# CONFIG_EXPERT is not set
-CONFIG_UID16=y
-# CONFIG_SYSCTL_SYSCALL is not set
-CONFIG_KALLSYMS=y
-# CONFIG_KALLSYMS_ALL is not set
-CONFIG_HOTPLUG=y
-CONFIG_PRINTK=y
-CONFIG_BUG=y
-CONFIG_ELF_CORE=y
-CONFIG_BASE_FULL=y
-CONFIG_FUTEX=y
-CONFIG_EPOLL=y
-CONFIG_SIGNALFD=y
-CONFIG_TIMERFD=y
-CONFIG_EVENTFD=y
-CONFIG_SHMEM=y
-CONFIG_AIO=y
-# CONFIG_EMBEDDED is not set
-
-#
-# Kernel Performance Events And Counters
-#
-CONFIG_VM_EVENT_COUNTERS=y
-CONFIG_COMPAT_BRK=y
-CONFIG_SLAB=y
-# CONFIG_SLUB is not set
-# CONFIG_PROFILING is not set
-
-#
-# GCOV-based kernel profiling
-#
-# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
-CONFIG_SLABINFO=y
-CONFIG_RT_MUTEXES=y
-CONFIG_BASE_SMALL=0
-CONFIG_MODULES=y
-# CONFIG_MODULE_FORCE_LOAD is not set
-CONFIG_MODULE_UNLOAD=y
-# CONFIG_MODULE_FORCE_UNLOAD is not set
-# CONFIG_MODVERSIONS is not set
-# CONFIG_MODULE_SRCVERSION_ALL is not set
-CONFIG_BLOCK=y
-CONFIG_LBDAF=y
-# CONFIG_BLK_DEV_BSG is not set
-# CONFIG_BLK_DEV_BSGLIB is not set
-# CONFIG_BLK_DEV_INTEGRITY is not set
-
-#
-# Partition Types
-#
-# CONFIG_PARTITION_ADVANCED is not set
-CONFIG_MSDOS_PARTITION=y
-
-#
-# IO Schedulers
-#
-CONFIG_IOSCHED_NOOP=y
-CONFIG_IOSCHED_DEADLINE=y
-CONFIG_IOSCHED_CFQ=m
-# CONFIG_CFQ_GROUP_IOSCHED is not set
-CONFIG_DEFAULT_DEADLINE=y
-# CONFIG_DEFAULT_CFQ is not set
-# CONFIG_DEFAULT_NOOP is not set
-CONFIG_DEFAULT_IOSCHED="deadline"
-# CONFIG_INLINE_SPIN_TRYLOCK is not set
-# CONFIG_INLINE_SPIN_TRYLOCK_BH is not set
-# CONFIG_INLINE_SPIN_LOCK is not set
-# CONFIG_INLINE_SPIN_LOCK_BH is not set
-# CONFIG_INLINE_SPIN_LOCK_IRQ is not set
-# CONFIG_INLINE_SPIN_LOCK_IRQSAVE is not set
-CONFIG_INLINE_SPIN_UNLOCK=y
-# CONFIG_INLINE_SPIN_UNLOCK_BH is not set
-CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
-# CONFIG_INLINE_SPIN_UNLOCK_IRQRESTORE is not set
-# CONFIG_INLINE_READ_TRYLOCK is not set
-# CONFIG_INLINE_READ_LOCK is not set
-# CONFIG_INLINE_READ_LOCK_BH is not set
-# CONFIG_INLINE_READ_LOCK_IRQ is not set
-# CONFIG_INLINE_READ_LOCK_IRQSAVE is not set
-CONFIG_INLINE_READ_UNLOCK=y
-# CONFIG_INLINE_READ_UNLOCK_BH is not set
-CONFIG_INLINE_READ_UNLOCK_IRQ=y
-# CONFIG_INLINE_READ_UNLOCK_IRQRESTORE is not set
-# CONFIG_INLINE_WRITE_TRYLOCK is not set
-# CONFIG_INLINE_WRITE_LOCK is not set
-# CONFIG_INLINE_WRITE_LOCK_BH is not set
-# CONFIG_INLINE_WRITE_LOCK_IRQ is not set
-# CONFIG_INLINE_WRITE_LOCK_IRQSAVE is not set
-CONFIG_INLINE_WRITE_UNLOCK=y
-# CONFIG_INLINE_WRITE_UNLOCK_BH is not set
-CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
-# CONFIG_INLINE_WRITE_UNLOCK_IRQRESTORE is not set
-# CONFIG_MUTEX_SPIN_ON_OWNER is not set
-CONFIG_FREEZER=y
-
-#
-# UML Character Devices
-#
-CONFIG_STDERR_CONSOLE=y
-CONFIG_STDIO_CONSOLE=y
-CONFIG_SSL=y
-CONFIG_NULL_CHAN=y
-CONFIG_PORT_CHAN=y
-CONFIG_PTY_CHAN=y
-CONFIG_TTY_CHAN=y
-CONFIG_XTERM_CHAN=y
-# CONFIG_NOCONFIG_CHAN is not set
-CONFIG_CON_ZERO_CHAN="fd:0,fd:1"
-CONFIG_CON_CHAN="xterm"
-CONFIG_SSL_CHAN="pts"
-CONFIG_UML_SOUND=m
-CONFIG_SOUND=m
-CONFIG_SOUND_OSS_CORE=y
-CONFIG_HOSTAUDIO=m
-
-#
-# Device Drivers
-#
-
-#
-# Generic Driver Options
-#
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
-CONFIG_DEVTMPFS=y
-CONFIG_DEVTMPFS_MOUNT=y
-CONFIG_STANDALONE=y
-CONFIG_PREVENT_FIRMWARE_BUILD=y
-CONFIG_FW_LOADER=y
-CONFIG_FIRMWARE_IN_KERNEL=y
-CONFIG_EXTRA_FIRMWARE=""
-# CONFIG_DEBUG_DRIVER is not set
-# CONFIG_DEBUG_DEVRES is not set
-# CONFIG_SYS_HYPERVISOR is not set
-CONFIG_GENERIC_CPU_DEVICES=y
-# CONFIG_DMA_SHARED_BUFFER is not set
-# CONFIG_CONNECTOR is not set
-# CONFIG_MTD is not set
-CONFIG_BLK_DEV=y
-CONFIG_BLK_DEV_UBD=y
-# CONFIG_BLK_DEV_UBD_SYNC is not set
-CONFIG_BLK_DEV_COW_COMMON=y
-CONFIG_BLK_DEV_LOOP=m
-CONFIG_BLK_DEV_LOOP_MIN_COUNT=8
-# CONFIG_BLK_DEV_CRYPTOLOOP is not set
-
-#
-# DRBD disabled because PROC_FS, INET or CONNECTOR not selected
-#
-CONFIG_BLK_DEV_NBD=m
-# CONFIG_BLK_DEV_RAM is not set
-# CONFIG_ATA_OVER_ETH is not set
-# CONFIG_BLK_DEV_RBD is not set
-
-#
-# Misc devices
-#
-# CONFIG_ENCLOSURE_SERVICES is not set
-# CONFIG_C2PORT is not set
-
-#
-# EEPROM support
-#
-# CONFIG_EEPROM_93CX6 is not set
-
-#
-# Texas Instruments shared transport line discipline
-#
-
-#
-# Altera FPGA firmware download module
-#
-
-#
-# SCSI device support
-#
-CONFIG_SCSI_MOD=y
-# CONFIG_RAID_ATTRS is not set
-# CONFIG_SCSI is not set
-# CONFIG_SCSI_DMA is not set
-# CONFIG_SCSI_NETLINK is not set
-# CONFIG_MD is not set
-CONFIG_NETDEVICES=y
-CONFIG_NET_CORE=y
-# CONFIG_BONDING is not set
-CONFIG_DUMMY=m
-# CONFIG_EQUALIZER is not set
-# CONFIG_MII is not set
-# CONFIG_NET_TEAM is not set
-# CONFIG_MACVLAN is not set
-# CONFIG_NETCONSOLE is not set
-# CONFIG_NETPOLL is not set
-# CONFIG_NET_POLL_CONTROLLER is not set
-CONFIG_TUN=m
-# CONFIG_VETH is not set
-
-#
-# CAIF transport drivers
-#
-CONFIG_ETHERNET=y
-CONFIG_NET_VENDOR_CHELSIO=y
-CONFIG_NET_VENDOR_INTEL=y
-CONFIG_NET_VENDOR_I825XX=y
-CONFIG_NET_VENDOR_MARVELL=y
-CONFIG_NET_VENDOR_NATSEMI=y
-CONFIG_NET_VENDOR_8390=y
-# CONFIG_PHYLIB is not set
-CONFIG_PPP=m
-# CONFIG_PPP_BSDCOMP is not set
-# CONFIG_PPP_DEFLATE is not set
-# CONFIG_PPP_FILTER is not set
-# CONFIG_PPP_MPPE is not set
-# CONFIG_PPP_MULTILINK is not set
-# CONFIG_PPPOE is not set
-# CONFIG_PPP_ASYNC is not set
-# CONFIG_PPP_SYNC_TTY is not set
-CONFIG_SLIP=m
-CONFIG_SLHC=m
-# CONFIG_SLIP_COMPRESSED is not set
-# CONFIG_SLIP_SMART is not set
-# CONFIG_SLIP_MODE_SLIP6 is not set
-CONFIG_WLAN=y
-# CONFIG_HOSTAP is not set
-
-#
-# Enable WiMAX (Networking options) to see the WiMAX drivers
-#
-# CONFIG_WAN is not set
-
-#
-# Character devices
-#
-CONFIG_UNIX98_PTYS=y
-# CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
-CONFIG_LEGACY_PTYS=y
-CONFIG_LEGACY_PTY_COUNT=32
-# CONFIG_N_GSM is not set
-# CONFIG_TRACE_SINK is not set
-CONFIG_DEVKMEM=y
-# CONFIG_HW_RANDOM is not set
-CONFIG_UML_RANDOM=y
-# CONFIG_R3964 is not set
-# CONFIG_NSC_GPIO is not set
-# CONFIG_RAW_DRIVER is not set
-
-#
-# PPS support
-#
-# CONFIG_PPS is not set
-
-#
-# PPS generators support
-#
-
-#
-# PTP clock support
-#
-
-#
-# Enable Device Drivers -> PPS to see the PTP clock options.
-#
-# CONFIG_POWER_SUPPLY is not set
-# CONFIG_THERMAL is not set
-# CONFIG_WATCHDOG is not set
-# CONFIG_REGULATOR is not set
-CONFIG_SOUND_OSS_CORE_PRECLAIM=y
-# CONFIG_MEMSTICK is not set
-# CONFIG_NEW_LEDS is not set
-# CONFIG_ACCESSIBILITY is not set
-# CONFIG_AUXDISPLAY is not set
-# CONFIG_UIO is not set
-
-#
-# Virtio drivers
-#
-# CONFIG_VIRTIO_BALLOON is not set
-
-#
-# Microsoft Hyper-V guest support
-#
-# CONFIG_STAGING is not set
-
-#
-# Hardware Spinlock drivers
-#
-CONFIG_IOMMU_SUPPORT=y
-# CONFIG_VIRT_DRIVERS is not set
-# CONFIG_PM_DEVFREQ is not set
-CONFIG_NET=y
-
-#
-# Networking options
-#
-CONFIG_PACKET=y
-CONFIG_UNIX=y
-# CONFIG_UNIX_DIAG is not set
-CONFIG_XFRM=y
-# CONFIG_XFRM_USER is not set
-# CONFIG_XFRM_SUB_POLICY is not set
-# CONFIG_XFRM_MIGRATE is not set
-# CONFIG_XFRM_STATISTICS is not set
-# CONFIG_NET_KEY is not set
-CONFIG_INET=y
-# CONFIG_IP_MULTICAST is not set
-# CONFIG_IP_ADVANCED_ROUTER is not set
-# CONFIG_IP_PNP is not set
-# CONFIG_NET_IPIP is not set
-# CONFIG_NET_IPGRE_DEMUX is not set
-# CONFIG_ARPD is not set
-# CONFIG_SYN_COOKIES is not set
-# CONFIG_INET_AH is not set
-# CONFIG_INET_ESP is not set
-# CONFIG_INET_IPCOMP is not set
-# CONFIG_INET_XFRM_TUNNEL is not set
-# CONFIG_INET_TUNNEL is not set
-CONFIG_INET_XFRM_MODE_TRANSPORT=y
-CONFIG_INET_XFRM_MODE_TUNNEL=y
-CONFIG_INET_XFRM_MODE_BEET=y
-# CONFIG_INET_LRO is not set
-CONFIG_INET_DIAG=y
-CONFIG_INET_TCP_DIAG=y
-# CONFIG_INET_UDP_DIAG is not set
-# CONFIG_TCP_CONG_ADVANCED is not set
-CONFIG_TCP_CONG_CUBIC=y
-CONFIG_DEFAULT_TCP_CONG="cubic"
-# CONFIG_TCP_MD5SIG is not set
-# CONFIG_IPV6 is not set
-# CONFIG_NETWORK_SECMARK is not set
-# CONFIG_NETWORK_PHY_TIMESTAMPING is not set
-# CONFIG_NETFILTER is not set
-# CONFIG_IP_DCCP is not set
-# CONFIG_IP_SCTP is not set
-# CONFIG_RDS is not set
-# CONFIG_TIPC is not set
-# CONFIG_ATM is not set
-# CONFIG_L2TP is not set
-# CONFIG_BRIDGE is not set
-# CONFIG_NET_DSA is not set
-# CONFIG_VLAN_8021Q is not set
-# CONFIG_DECNET is not set
-# CONFIG_LLC2 is not set
-# CONFIG_IPX is not set
-# CONFIG_ATALK is not set
-# CONFIG_X25 is not set
-# CONFIG_LAPB is not set
-# CONFIG_ECONET is not set
-# CONFIG_WAN_ROUTER is not set
-# CONFIG_PHONET is not set
-# CONFIG_IEEE802154 is not set
-# CONFIG_NET_SCHED is not set
-# CONFIG_DCB is not set
-# CONFIG_BATMAN_ADV is not set
-# CONFIG_OPENVSWITCH is not set
-# CONFIG_NETPRIO_CGROUP is not set
-CONFIG_BQL=y
-
-#
-# Network testing
-#
-# CONFIG_NET_PKTGEN is not set
-# CONFIG_HAMRADIO is not set
-# CONFIG_CAN is not set
-# CONFIG_IRDA is not set
-# CONFIG_BT is not set
-# CONFIG_AF_RXRPC is not set
-CONFIG_WIRELESS=y
-# CONFIG_CFG80211 is not set
-# CONFIG_LIB80211 is not set
-
-#
-# CFG80211 needs to be enabled for MAC80211
-#
-# CONFIG_WIMAX is not set
-# CONFIG_RFKILL is not set
-# CONFIG_NET_9P is not set
-# CONFIG_CAIF is not set
-# CONFIG_CEPH_LIB is not set
-# CONFIG_NFC is not set
-
-#
-# UML Network Devices
-#
-CONFIG_UML_NET=y
-CONFIG_UML_NET_ETHERTAP=y
-CONFIG_UML_NET_TUNTAP=y
-CONFIG_UML_NET_SLIP=y
-CONFIG_UML_NET_DAEMON=y
-# CONFIG_UML_NET_VDE is not set
-CONFIG_UML_NET_MCAST=y
-# CONFIG_UML_NET_PCAP is not set
-CONFIG_UML_NET_SLIRP=y
-
-#
-# File systems
-#
-# CONFIG_EXT2_FS is not set
-# CONFIG_EXT3_FS is not set
-CONFIG_EXT4_FS=y
-CONFIG_EXT4_USE_FOR_EXT23=y
-CONFIG_EXT4_FS_XATTR=y
-# CONFIG_EXT4_FS_POSIX_ACL is not set
-# CONFIG_EXT4_FS_SECURITY is not set
-# CONFIG_EXT4_DEBUG is not set
-CONFIG_JBD2=y
-CONFIG_FS_MBCACHE=y
-CONFIG_REISERFS_FS=y
-# CONFIG_REISERFS_CHECK is not set
-# CONFIG_REISERFS_PROC_INFO is not set
-# CONFIG_REISERFS_FS_XATTR is not set
-# CONFIG_JFS_FS is not set
-# CONFIG_XFS_FS is not set
-# CONFIG_GFS2_FS is not set
-# CONFIG_BTRFS_FS is not set
-# CONFIG_NILFS2_FS is not set
-# CONFIG_FS_POSIX_ACL is not set
-CONFIG_FILE_LOCKING=y
-CONFIG_FSNOTIFY=y
-CONFIG_DNOTIFY=y
-CONFIG_INOTIFY_USER=y
-# CONFIG_FANOTIFY is not set
-CONFIG_QUOTA=y
-# CONFIG_QUOTA_NETLINK_INTERFACE is not set
-CONFIG_PRINT_QUOTA_WARNING=y
-# CONFIG_QUOTA_DEBUG is not set
-# CONFIG_QFMT_V1 is not set
-# CONFIG_QFMT_V2 is not set
-CONFIG_QUOTACTL=y
-CONFIG_AUTOFS4_FS=m
-# CONFIG_FUSE_FS is not set
-
-#
-# Caches
-#
-# CONFIG_FSCACHE is not set
-
-#
-# CD-ROM/DVD Filesystems
-#
-CONFIG_ISO9660_FS=m
-CONFIG_JOLIET=y
-# CONFIG_ZISOFS is not set
-# CONFIG_UDF_FS is not set
-
-#
-# DOS/FAT/NT Filesystems
-#
-# CONFIG_MSDOS_FS is not set
-# CONFIG_VFAT_FS is not set
-# CONFIG_NTFS_FS is not set
-
-#
-# Pseudo filesystems
-#
-CONFIG_PROC_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_PROC_SYSCTL=y
-CONFIG_PROC_PAGE_MONITOR=y
-CONFIG_SYSFS=y
-CONFIG_TMPFS=y
-# CONFIG_TMPFS_POSIX_ACL is not set
-# CONFIG_TMPFS_XATTR is not set
-# CONFIG_HUGETLB_PAGE is not set
-# CONFIG_CONFIGFS_FS is not set
-CONFIG_MISC_FILESYSTEMS=y
-# CONFIG_ADFS_FS is not set
-# CONFIG_AFFS_FS is not set
-# CONFIG_HFS_FS is not set
-# CONFIG_HFSPLUS_FS is not set
-# CONFIG_BEFS_FS is not set
-# CONFIG_BFS_FS is not set
-# CONFIG_EFS_FS is not set
-# CONFIG_LOGFS is not set
-# CONFIG_CRAMFS is not set
-# CONFIG_SQUASHFS is not set
-# CONFIG_VXFS_FS is not set
-# CONFIG_MINIX_FS is not set
-# CONFIG_OMFS_FS is not set
-# CONFIG_HPFS_FS is not set
-# CONFIG_QNX4FS_FS is not set
-# CONFIG_ROMFS_FS is not set
-# CONFIG_PSTORE is not set
-# CONFIG_SYSV_FS is not set
-# CONFIG_UFS_FS is not set
-CONFIG_NETWORK_FILESYSTEMS=y
-# CONFIG_NFS_FS is not set
-# CONFIG_NFSD is not set
-# CONFIG_CEPH_FS is not set
-# CONFIG_CIFS is not set
-# CONFIG_NCP_FS is not set
-# CONFIG_CODA_FS is not set
-# CONFIG_AFS_FS is not set
-CONFIG_NLS=y
-CONFIG_NLS_DEFAULT="iso8859-1"
-# CONFIG_NLS_CODEPAGE_437 is not set
-# CONFIG_NLS_CODEPAGE_737 is not set
-# CONFIG_NLS_CODEPAGE_775 is not set
-# CONFIG_NLS_CODEPAGE_850 is not set
-# CONFIG_NLS_CODEPAGE_852 is not set
-# CONFIG_NLS_CODEPAGE_855 is not set
-# CONFIG_NLS_CODEPAGE_857 is not set
-# CONFIG_NLS_CODEPAGE_860 is not set
-# CONFIG_NLS_CODEPAGE_861 is not set
-# CONFIG_NLS_CODEPAGE_862 is not set
-# CONFIG_NLS_CODEPAGE_863 is not set
-# CONFIG_NLS_CODEPAGE_864 is not set
-# CONFIG_NLS_CODEPAGE_865 is not set
-# CONFIG_NLS_CODEPAGE_866 is not set
-# CONFIG_NLS_CODEPAGE_869 is not set
-# CONFIG_NLS_CODEPAGE_936 is not set
-# CONFIG_NLS_CODEPAGE_950 is not set
-# CONFIG_NLS_CODEPAGE_932 is not set
-# CONFIG_NLS_CODEPAGE_949 is not set
-# CONFIG_NLS_CODEPAGE_874 is not set
-# CONFIG_NLS_ISO8859_8 is not set
-# CONFIG_NLS_CODEPAGE_1250 is not set
-# CONFIG_NLS_CODEPAGE_1251 is not set
-# CONFIG_NLS_ASCII is not set
-# CONFIG_NLS_ISO8859_1 is not set
-# CONFIG_NLS_ISO8859_2 is not set
-# CONFIG_NLS_ISO8859_3 is not set
-# CONFIG_NLS_ISO8859_4 is not set
-# CONFIG_NLS_ISO8859_5 is not set
-# CONFIG_NLS_ISO8859_6 is not set
-# CONFIG_NLS_ISO8859_7 is not set
-# CONFIG_NLS_ISO8859_9 is not set
-# CONFIG_NLS_ISO8859_13 is not set
-# CONFIG_NLS_ISO8859_14 is not set
-# CONFIG_NLS_ISO8859_15 is not set
-# CONFIG_NLS_KOI8_R is not set
-# CONFIG_NLS_KOI8_U is not set
-# CONFIG_NLS_UTF8 is not set
-
-#
-# Security options
-#
-# CONFIG_KEYS is not set
-# CONFIG_SECURITY_DMESG_RESTRICT is not set
-# CONFIG_SECURITY is not set
-# CONFIG_SECURITYFS is not set
-CONFIG_DEFAULT_SECURITY_DAC=y
-CONFIG_DEFAULT_SECURITY=""
-CONFIG_CRYPTO=y
-
-#
-# Crypto core or helper
-#
-# CONFIG_CRYPTO_FIPS is not set
-CONFIG_CRYPTO_ALGAPI=m
-CONFIG_CRYPTO_ALGAPI2=m
-CONFIG_CRYPTO_RNG=m
-CONFIG_CRYPTO_RNG2=m
-# CONFIG_CRYPTO_MANAGER is not set
-# CONFIG_CRYPTO_MANAGER2 is not set
-# CONFIG_CRYPTO_USER is not set
-# CONFIG_CRYPTO_GF128MUL is not set
-# CONFIG_CRYPTO_NULL is not set
-# CONFIG_CRYPTO_CRYPTD is not set
-# CONFIG_CRYPTO_AUTHENC is not set
-# CONFIG_CRYPTO_TEST is not set
-
-#
-# Authenticated Encryption with Associated Data
-#
-# CONFIG_CRYPTO_CCM is not set
-# CONFIG_CRYPTO_GCM is not set
-# CONFIG_CRYPTO_SEQIV is not set
-
-#
-# Block modes
-#
-# CONFIG_CRYPTO_CBC is not set
-# CONFIG_CRYPTO_CTR is not set
-# CONFIG_CRYPTO_CTS is not set
-# CONFIG_CRYPTO_ECB is not set
-# CONFIG_CRYPTO_LRW is not set
-# CONFIG_CRYPTO_PCBC is not set
-# CONFIG_CRYPTO_XTS is not set
-
-#
-# Hash modes
-#
-# CONFIG_CRYPTO_HMAC is not set
-# CONFIG_CRYPTO_XCBC is not set
-# CONFIG_CRYPTO_VMAC is not set
-
-#
-# Digest
-#
-# CONFIG_CRYPTO_CRC32C is not set
-# CONFIG_CRYPTO_GHASH is not set
-# CONFIG_CRYPTO_MD4 is not set
-# CONFIG_CRYPTO_MD5 is not set
-# CONFIG_CRYPTO_MICHAEL_MIC is not set
-# CONFIG_CRYPTO_RMD128 is not set
-# CONFIG_CRYPTO_RMD160 is not set
-# CONFIG_CRYPTO_RMD256 is not set
-# CONFIG_CRYPTO_RMD320 is not set
-# CONFIG_CRYPTO_SHA1 is not set
-# CONFIG_CRYPTO_SHA256 is not set
-# CONFIG_CRYPTO_SHA512 is not set
-# CONFIG_CRYPTO_TGR192 is not set
-# CONFIG_CRYPTO_WP512 is not set
-
-#
-# Ciphers
-#
-CONFIG_CRYPTO_AES=m
-# CONFIG_CRYPTO_AES_586 is not set
-# CONFIG_CRYPTO_ANUBIS is not set
-# CONFIG_CRYPTO_ARC4 is not set
-# CONFIG_CRYPTO_BLOWFISH is not set
-# CONFIG_CRYPTO_CAMELLIA is not set
-# CONFIG_CRYPTO_CAST5 is not set
-# CONFIG_CRYPTO_CAST6 is not set
-# CONFIG_CRYPTO_DES is not set
-# CONFIG_CRYPTO_FCRYPT is not set
-# CONFIG_CRYPTO_KHAZAD is not set
-# CONFIG_CRYPTO_SALSA20 is not set
-# CONFIG_CRYPTO_SALSA20_586 is not set
-# CONFIG_CRYPTO_SEED is not set
-# CONFIG_CRYPTO_SERPENT is not set
-# CONFIG_CRYPTO_TEA is not set
-# CONFIG_CRYPTO_TWOFISH is not set
-# CONFIG_CRYPTO_TWOFISH_586 is not set
-
-#
-# Compression
-#
-# CONFIG_CRYPTO_DEFLATE is not set
-# CONFIG_CRYPTO_ZLIB is not set
-# CONFIG_CRYPTO_LZO is not set
-
-#
-# Random Number Generation
-#
-CONFIG_CRYPTO_ANSI_CPRNG=m
-# CONFIG_CRYPTO_USER_API_HASH is not set
-# CONFIG_CRYPTO_USER_API_SKCIPHER is not set
-CONFIG_CRYPTO_HW=y
-# CONFIG_BINARY_PRINTF is not set
-
-#
-# Library routines
-#
-CONFIG_BITREVERSE=y
-CONFIG_GENERIC_FIND_FIRST_BIT=y
-CONFIG_GENERIC_IO=y
-# CONFIG_CRC_CCITT is not set
-CONFIG_CRC16=y
-# CONFIG_CRC_T10DIF is not set
-# CONFIG_CRC_ITU_T is not set
-CONFIG_CRC32=y
-# CONFIG_CRC7 is not set
-# CONFIG_LIBCRC32C is not set
-# CONFIG_CRC8 is not set
-# CONFIG_XZ_DEC is not set
-# CONFIG_XZ_DEC_BCJ is not set
-CONFIG_DQL=y
-CONFIG_NLATTR=y
-# CONFIG_AVERAGE is not set
-# CONFIG_CORDIC is not set
-
-#
-# Kernel hacking
-#
-# CONFIG_PRINTK_TIME is not set
-CONFIG_DEFAULT_MESSAGE_LOGLEVEL=4
-CONFIG_ENABLE_WARN_DEPRECATED=y
-CONFIG_ENABLE_MUST_CHECK=y
-CONFIG_FRAME_WARN=1024
-# CONFIG_STRIP_ASM_SYMS is not set
-# CONFIG_UNUSED_SYMBOLS is not set
-# CONFIG_DEBUG_FS is not set
-# CONFIG_DEBUG_SECTION_MISMATCH is not set
-CONFIG_DEBUG_KERNEL=y
-# CONFIG_DEBUG_SHIRQ is not set
-# CONFIG_LOCKUP_DETECTOR is not set
-# CONFIG_HARDLOCKUP_DETECTOR is not set
-# CONFIG_DETECT_HUNG_TASK is not set
-CONFIG_SCHED_DEBUG=y
-# CONFIG_SCHEDSTATS is not set
-# CONFIG_TIMER_STATS is not set
-# CONFIG_DEBUG_OBJECTS is not set
-# CONFIG_DEBUG_SLAB is not set
-# CONFIG_DEBUG_RT_MUTEXES is not set
-# CONFIG_RT_MUTEX_TESTER is not set
-# CONFIG_DEBUG_SPINLOCK is not set
-# CONFIG_DEBUG_MUTEXES is not set
-# CONFIG_SPARSE_RCU_POINTER is not set
-# CONFIG_DEBUG_ATOMIC_SLEEP is not set
-# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
-# CONFIG_DEBUG_STACK_USAGE is not set
-# CONFIG_DEBUG_KOBJECT is not set
-CONFIG_DEBUG_BUGVERBOSE=y
-CONFIG_DEBUG_INFO=y
-# CONFIG_DEBUG_INFO_REDUCED is not set
-# CONFIG_DEBUG_VM is not set
-# CONFIG_DEBUG_WRITECOUNT is not set
-CONFIG_DEBUG_MEMORY_INIT=y
-# CONFIG_DEBUG_LIST is not set
-# CONFIG_TEST_LIST_SORT is not set
-# CONFIG_DEBUG_SG is not set
-# CONFIG_DEBUG_NOTIFIERS is not set
-# CONFIG_DEBUG_CREDENTIALS is not set
-CONFIG_FRAME_POINTER=y
-# CONFIG_BOOT_PRINTK_DELAY is not set
-# CONFIG_RCU_TORTURE_TEST is not set
-# CONFIG_BACKTRACE_SELF_TEST is not set
-# CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
-# CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
-# CONFIG_FAULT_INJECTION is not set
-# CONFIG_SYSCTL_SYSCALL_CHECK is not set
-# CONFIG_DEBUG_PAGEALLOC is not set
-# CONFIG_ATOMIC64_SELFTEST is not set
-# CONFIG_SAMPLES is not set
-# CONFIG_TEST_KSTRTOX is not set
-# CONFIG_GPROF is not set
-# CONFIG_GCOV is not set
-CONFIG_EARLY_PRINTK=y
diff --git a/arch/x86/um/Kconfig b/arch/x86/um/Kconfig
index 14ef8d1dbc33..ed56a1c4ae73 100644
--- a/arch/x86/um/Kconfig
+++ b/arch/x86/um/Kconfig
@@ -31,6 +31,11 @@ config X86_64
 	def_bool 64BIT
 	select MODULES_USE_ELF_RELA
 
+config ARCH_DEFCONFIG
+	string
+	default "arch/um/configs/i386_defconfig" if X86_32
+	default "arch/um/configs/x86_64_defconfig" if X86_64
+
 config RWSEM_XCHGADD_ALGORITHM
 	def_bool 64BIT
 
-- 
cgit 


From b13a9bfc798d81da46447b280a95f1b5aded0995 Mon Sep 17 00:00:00 2001
From: Ramkumar Ramachandra <artagnon@gmail.com>
Date: Fri, 27 Sep 2013 09:44:47 +0530
Subject: um/vdso: add .gitignore for a couple of targets

Cc: Richard Weinberger <richard@nod.at>
Signed-off-by: Ramkumar Ramachandra <artagnon@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
---
 arch/x86/um/vdso/.gitignore | 2 ++
 1 file changed, 2 insertions(+)
 create mode 100644 arch/x86/um/vdso/.gitignore

diff --git a/arch/x86/um/vdso/.gitignore b/arch/x86/um/vdso/.gitignore
new file mode 100644
index 000000000000..9cac6d072199
--- /dev/null
+++ b/arch/x86/um/vdso/.gitignore
@@ -0,0 +1,2 @@
+vdso-syms.lds
+vdso.lds
-- 
cgit 


From a851aebc366ff32b23146ec354bfbe56f484b77c Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Sun, 27 Oct 2013 08:06:10 +0100
Subject: um: remove used STDIO_CONSOLE Kconfig param

This removes the STDIO_CONSOLE Kconfig parameter which
is defined but no longer used anywhere in the makefiles and source code.

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
---
 arch/um/Kconfig.char | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/arch/um/Kconfig.char b/arch/um/Kconfig.char
index b9d7c4276682..f10738d68b2d 100644
--- a/arch/um/Kconfig.char
+++ b/arch/um/Kconfig.char
@@ -6,10 +6,6 @@ config STDERR_CONSOLE
 	help
 	  console driver which dumps all printk messages to stderr.
 
-config STDIO_CONSOLE
-	bool
-	default y
-
 config SSL
 	bool "Virtual serial line"
 	help
-- 
cgit 


From 33a7d42999b1857d4494f6ad6367e3aef0ae8137 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Tue, 12 Nov 2013 20:42:27 +0100
Subject: um: Remove unused declarations from <as-layout.h>

_end is used, but it's already provided by <asm/sections.h>, so use that.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Richard Weinberger <richard@nod.at>
Cc: user-mode-linux-devel@lists.sourceforge.net
Signed-off-by: Richard Weinberger <richard@nod.at>
---
 arch/um/include/shared/as-layout.h | 3 ---
 arch/um/kernel/um_arch.c           | 1 +
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/arch/um/include/shared/as-layout.h b/arch/um/include/shared/as-layout.h
index 694c792bab4e..41c8c774ec10 100644
--- a/arch/um/include/shared/as-layout.h
+++ b/arch/um/include/shared/as-layout.h
@@ -44,7 +44,6 @@ struct cpu_task {
 
 extern struct cpu_task cpu_tasks[];
 
-extern unsigned long low_physmem;
 extern unsigned long high_physmem;
 extern unsigned long uml_physmem;
 extern unsigned long uml_reserved;
@@ -52,8 +51,6 @@ extern unsigned long end_vm;
 extern unsigned long start_vm;
 extern unsigned long long highmem;
 
-extern unsigned long _stext, _etext, _sdata, _edata, __bss_start, _end;
-extern unsigned long _unprotected_end;
 extern unsigned long brk_start;
 
 extern unsigned long host_task_size;
diff --git a/arch/um/kernel/um_arch.c b/arch/um/kernel/um_arch.c
index b9dd13e6f206..016adf0985d5 100644
--- a/arch/um/kernel/um_arch.c
+++ b/arch/um/kernel/um_arch.c
@@ -13,6 +13,7 @@
 #include <linux/sched.h>
 #include <asm/pgtable.h>
 #include <asm/processor.h>
+#include <asm/sections.h>
 #include <asm/setup.h>
 #include <as-layout.h>
 #include <arch.h>
-- 
cgit 


From 0ee005c7dc2803125275e24598f0fb37775a6af3 Mon Sep 17 00:00:00 2001
From: Frank Zago <frank@zago.net>
Date: Wed, 13 Nov 2013 22:53:00 +0000
Subject: iio:accel:kxsd9 fix missing mutex unlock

This will leave a lock held after reading from the device, preventing
any further reads.

Signed-off-by: Frank Zago <frank@zago.net>
Cc: stable@vger.kernel.org
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
---
 drivers/iio/accel/kxsd9.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/accel/kxsd9.c b/drivers/iio/accel/kxsd9.c
index d72118d1189c..98ba761cbb9c 100644
--- a/drivers/iio/accel/kxsd9.c
+++ b/drivers/iio/accel/kxsd9.c
@@ -112,9 +112,10 @@ static int kxsd9_read(struct iio_dev *indio_dev, u8 address)
 	mutex_lock(&st->buf_lock);
 	st->tx[0] = KXSD9_READ(address);
 	ret = spi_sync_transfer(st->us, xfers, ARRAY_SIZE(xfers));
-	if (ret)
-		return ret;
-	return (((u16)(st->rx[0])) << 8) | (st->rx[1] & 0xF0);
+	if (!ret)
+		ret = (((u16)(st->rx[0])) << 8) | (st->rx[1] & 0xF0);
+	mutex_unlock(&st->buf_lock);
+	return ret;
 }
 
 static IIO_CONST_ATTR(accel_scale_available,
-- 
cgit 


From f88482743872230f5899b8344a057d6e2fd011e2 Mon Sep 17 00:00:00 2001
From: Matan Barak <matanb@mellanox.com>
Date: Wed, 6 Nov 2013 23:21:44 +0100
Subject: IB/core: clarify overflow/underflow checks on ib_create/destroy_flow

This patch fixes the following issues:

1. Unneeded checks were removed

2. Removed the fixed size out of flow_attr.size, thus simplifying the checks.

3. Remove a 32bit hole on 64bit systems with strict alignment in
   struct ib_kern_flow_att by adding a reserved field.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/core/uverbs_cmd.c | 32 +++++++++++++++-----------------
 include/uapi/rdma/ib_user_verbs.h    |  1 +
 2 files changed, 16 insertions(+), 17 deletions(-)

diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 2f0f01b70e3b..26ee2d2a8c52 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -2657,7 +2657,6 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file,
 	void *kern_spec;
 	void *ib_spec;
 	int i;
-	int kern_attr_size;
 
 	if (out_len < sizeof(resp))
 		return -ENOSPC;
@@ -2672,32 +2671,28 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file,
 	     !capable(CAP_NET_ADMIN)) || !capable(CAP_NET_RAW))
 		return -EPERM;
 
-	if (cmd.flow_attr.num_of_specs < 0 ||
-	    cmd.flow_attr.num_of_specs > IB_FLOW_SPEC_SUPPORT_LAYERS)
+	if (cmd.flow_attr.num_of_specs > IB_FLOW_SPEC_SUPPORT_LAYERS)
 		return -EINVAL;
 
-	kern_attr_size = cmd.flow_attr.size - sizeof(cmd) -
-			 sizeof(struct ib_uverbs_cmd_hdr_ex);
-
-	if (cmd.flow_attr.size < 0 || cmd.flow_attr.size > in_len ||
-	    kern_attr_size < 0 || kern_attr_size >
+	if (cmd.flow_attr.size > (in_len - sizeof(cmd)) ||
+	    cmd.flow_attr.size >
 	    (cmd.flow_attr.num_of_specs * sizeof(struct ib_kern_spec)))
 		return -EINVAL;
 
 	if (cmd.flow_attr.num_of_specs) {
-		kern_flow_attr = kmalloc(cmd.flow_attr.size, GFP_KERNEL);
+		kern_flow_attr = kmalloc(sizeof(*kern_flow_attr) + cmd.flow_attr.size,
+					 GFP_KERNEL);
 		if (!kern_flow_attr)
 			return -ENOMEM;
 
 		memcpy(kern_flow_attr, &cmd.flow_attr, sizeof(*kern_flow_attr));
 		if (copy_from_user(kern_flow_attr + 1, buf + sizeof(cmd),
-				   kern_attr_size)) {
+				   cmd.flow_attr.size)) {
 			err = -EFAULT;
 			goto err_free_attr;
 		}
 	} else {
 		kern_flow_attr = &cmd.flow_attr;
-		kern_attr_size = sizeof(cmd.flow_attr);
 	}
 
 	uobj = kmalloc(sizeof(*uobj), GFP_KERNEL);
@@ -2714,7 +2709,7 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file,
 		goto err_uobj;
 	}
 
-	flow_attr = kmalloc(cmd.flow_attr.size, GFP_KERNEL);
+	flow_attr = kmalloc(sizeof(*flow_attr) + cmd.flow_attr.size, GFP_KERNEL);
 	if (!flow_attr) {
 		err = -ENOMEM;
 		goto err_put;
@@ -2729,19 +2724,22 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file,
 
 	kern_spec = kern_flow_attr + 1;
 	ib_spec = flow_attr + 1;
-	for (i = 0; i < flow_attr->num_of_specs && kern_attr_size > 0; i++) {
+	for (i = 0; i < flow_attr->num_of_specs &&
+	     cmd.flow_attr.size > offsetof(struct ib_kern_spec, reserved) &&
+	     cmd.flow_attr.size >=
+	     ((struct ib_kern_spec *)kern_spec)->size; i++) {
 		err = kern_spec_to_ib_spec(kern_spec, ib_spec);
 		if (err)
 			goto err_free;
 		flow_attr->size +=
 			((union ib_flow_spec *) ib_spec)->size;
-		kern_attr_size -= ((struct ib_kern_spec *) kern_spec)->size;
+		cmd.flow_attr.size -= ((struct ib_kern_spec *)kern_spec)->size;
 		kern_spec += ((struct ib_kern_spec *) kern_spec)->size;
 		ib_spec += ((union ib_flow_spec *) ib_spec)->size;
 	}
-	if (kern_attr_size) {
-		pr_warn("create flow failed, %d bytes left from uverb cmd\n",
-			kern_attr_size);
+	if (cmd.flow_attr.size || (i != flow_attr->num_of_specs)) {
+		pr_warn("create flow failed, flow %d: %d bytes left from uverb cmd\n",
+			i, cmd.flow_attr.size);
 		goto err_free;
 	}
 	flow_id = ib_create_flow(qp, flow_attr, IB_FLOW_DOMAIN_USER);
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index e3ddd86c90a6..99a58bdc1c64 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -771,6 +771,7 @@ struct ib_kern_flow_attr {
 
 struct ib_uverbs_create_flow  {
 	__u32 comp_mask;
+	__u32 reserved;
 	__u64 response;
 	__u32 qp_handle;
 	struct ib_kern_flow_attr flow_attr;
-- 
cgit 


From d82693dad09b49232cd727ee9e15bd027710edac Mon Sep 17 00:00:00 2001
From: Yann Droneaud <ydroneaud@opteya.com>
Date: Wed, 6 Nov 2013 23:21:45 +0100
Subject: IB/core: Rename 'flow' structs to match other uverbs structs

Commit 436f2ad05a0b ("IB/core: Export ib_create/destroy_flow through
uverbs") added public data structures to support receive flow
steering.  The new structs are not following the 'uverbs' pattern:
they're lacking the common prefix 'ib_uverbs'.

This patch replaces ib_kern prefix by ib_uverbs.

Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Link: http://marc.info/?i=cover.1383773832.git.ydroneaud@opteya.com
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/core/uverbs_cmd.c | 14 +++++++-------
 include/uapi/rdma/ib_user_verbs.h    | 36 ++++++++++++++++++------------------
 2 files changed, 25 insertions(+), 25 deletions(-)

diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 26ee2d2a8c52..f83c1dc08481 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -2602,7 +2602,7 @@ out_put:
 }
 
 #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
-static int kern_spec_to_ib_spec(struct ib_kern_spec *kern_spec,
+static int kern_spec_to_ib_spec(struct ib_uverbs_spec *kern_spec,
 				union ib_flow_spec *ib_spec)
 {
 	ib_spec->type = kern_spec->type;
@@ -2650,7 +2650,7 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file,
 	struct ib_uverbs_create_flow_resp resp;
 	struct ib_uobject		  *uobj;
 	struct ib_flow			  *flow_id;
-	struct ib_kern_flow_attr	  *kern_flow_attr;
+	struct ib_uverbs_flow_attr	  *kern_flow_attr;
 	struct ib_flow_attr		  *flow_attr;
 	struct ib_qp			  *qp;
 	int err = 0;
@@ -2676,7 +2676,7 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file,
 
 	if (cmd.flow_attr.size > (in_len - sizeof(cmd)) ||
 	    cmd.flow_attr.size >
-	    (cmd.flow_attr.num_of_specs * sizeof(struct ib_kern_spec)))
+	    (cmd.flow_attr.num_of_specs * sizeof(struct ib_uverbs_spec)))
 		return -EINVAL;
 
 	if (cmd.flow_attr.num_of_specs) {
@@ -2725,16 +2725,16 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file,
 	kern_spec = kern_flow_attr + 1;
 	ib_spec = flow_attr + 1;
 	for (i = 0; i < flow_attr->num_of_specs &&
-	     cmd.flow_attr.size > offsetof(struct ib_kern_spec, reserved) &&
+	     cmd.flow_attr.size > offsetof(struct ib_uverbs_spec, reserved) &&
 	     cmd.flow_attr.size >=
-	     ((struct ib_kern_spec *)kern_spec)->size; i++) {
+	     ((struct ib_uverbs_spec *)kern_spec)->size; i++) {
 		err = kern_spec_to_ib_spec(kern_spec, ib_spec);
 		if (err)
 			goto err_free;
 		flow_attr->size +=
 			((union ib_flow_spec *) ib_spec)->size;
-		cmd.flow_attr.size -= ((struct ib_kern_spec *)kern_spec)->size;
-		kern_spec += ((struct ib_kern_spec *) kern_spec)->size;
+		cmd.flow_attr.size -= ((struct ib_uverbs_spec *)kern_spec)->size;
+		kern_spec += ((struct ib_uverbs_spec *) kern_spec)->size;
 		ib_spec += ((union ib_flow_spec *) ib_spec)->size;
 	}
 	if (cmd.flow_attr.size || (i != flow_attr->num_of_specs)) {
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index 99a58bdc1c64..96a660533236 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -701,61 +701,61 @@ struct ib_uverbs_detach_mcast {
 };
 
 #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
-struct ib_kern_eth_filter {
+struct ib_uverbs_eth_filter {
 	__u8  dst_mac[6];
 	__u8  src_mac[6];
 	__be16 ether_type;
 	__be16 vlan_tag;
 };
 
-struct ib_kern_spec_eth {
+struct ib_uverbs_spec_eth {
 	__u32  type;
 	__u16  size;
 	__u16  reserved;
-	struct ib_kern_eth_filter val;
-	struct ib_kern_eth_filter mask;
+	struct ib_uverbs_eth_filter val;
+	struct ib_uverbs_eth_filter mask;
 };
 
-struct ib_kern_ipv4_filter {
+struct ib_uverbs_ipv4_filter {
 	__be32 src_ip;
 	__be32 dst_ip;
 };
 
-struct ib_kern_spec_ipv4 {
+struct ib_uverbs_spec_ipv4 {
 	__u32  type;
 	__u16  size;
 	__u16  reserved;
-	struct ib_kern_ipv4_filter val;
-	struct ib_kern_ipv4_filter mask;
+	struct ib_uverbs_ipv4_filter val;
+	struct ib_uverbs_ipv4_filter mask;
 };
 
-struct ib_kern_tcp_udp_filter {
+struct ib_uverbs_tcp_udp_filter {
 	__be16 dst_port;
 	__be16 src_port;
 };
 
-struct ib_kern_spec_tcp_udp {
+struct ib_uverbs_spec_tcp_udp {
 	__u32  type;
 	__u16  size;
 	__u16  reserved;
-	struct ib_kern_tcp_udp_filter val;
-	struct ib_kern_tcp_udp_filter mask;
+	struct ib_uverbs_tcp_udp_filter val;
+	struct ib_uverbs_tcp_udp_filter mask;
 };
 
-struct ib_kern_spec {
+struct ib_uverbs_spec {
 	union {
 		struct {
 			__u32 type;
 			__u16 size;
 			__u16 reserved;
 		};
-		struct ib_kern_spec_eth	    eth;
-		struct ib_kern_spec_ipv4    ipv4;
-		struct ib_kern_spec_tcp_udp tcp_udp;
+		struct ib_uverbs_spec_eth	    eth;
+		struct ib_uverbs_spec_ipv4    ipv4;
+		struct ib_uverbs_spec_tcp_udp tcp_udp;
 	};
 };
 
-struct ib_kern_flow_attr {
+struct ib_uverbs_flow_attr {
 	__u32 type;
 	__u16 size;
 	__u16 priority;
@@ -774,7 +774,7 @@ struct ib_uverbs_create_flow  {
 	__u32 reserved;
 	__u64 response;
 	__u32 qp_handle;
-	struct ib_kern_flow_attr flow_attr;
+	struct ib_uverbs_flow_attr flow_attr;
 };
 
 struct ib_uverbs_create_flow_resp {
-- 
cgit 


From b68c956021386eead6b8b28e445f33c8c985d7d2 Mon Sep 17 00:00:00 2001
From: Yann Droneaud <ydroneaud@opteya.com>
Date: Wed, 6 Nov 2013 23:21:46 +0100
Subject: IB/core: Make uverbs flow structure use names like verbs ones

This patch adds "flow" prefix to most of data structure added as part
of commit 436f2ad05a0b ("IB/core: Export ib_create/destroy_flow through
uverbs") to keep those names in sync with the data structures added in
commit 319a441d1361 ("IB/core: Add receive flow steering support").

It's just a matter of translating 'ib_flow' to 'ib_uverbs_flow'.

Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Link: http://marc.info/?i=cover.1383773832.git.ydroneaud@opteya.com
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/core/uverbs_cmd.c | 12 ++++++------
 include/uapi/rdma/ib_user_verbs.h    | 32 ++++++++++++++++----------------
 2 files changed, 22 insertions(+), 22 deletions(-)

diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index f83c1dc08481..19f14d82c988 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -2602,7 +2602,7 @@ out_put:
 }
 
 #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
-static int kern_spec_to_ib_spec(struct ib_uverbs_spec *kern_spec,
+static int kern_spec_to_ib_spec(struct ib_uverbs_flow_spec *kern_spec,
 				union ib_flow_spec *ib_spec)
 {
 	ib_spec->type = kern_spec->type;
@@ -2676,7 +2676,7 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file,
 
 	if (cmd.flow_attr.size > (in_len - sizeof(cmd)) ||
 	    cmd.flow_attr.size >
-	    (cmd.flow_attr.num_of_specs * sizeof(struct ib_uverbs_spec)))
+	    (cmd.flow_attr.num_of_specs * sizeof(struct ib_uverbs_flow_spec)))
 		return -EINVAL;
 
 	if (cmd.flow_attr.num_of_specs) {
@@ -2725,16 +2725,16 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file,
 	kern_spec = kern_flow_attr + 1;
 	ib_spec = flow_attr + 1;
 	for (i = 0; i < flow_attr->num_of_specs &&
-	     cmd.flow_attr.size > offsetof(struct ib_uverbs_spec, reserved) &&
+	     cmd.flow_attr.size > offsetof(struct ib_uverbs_flow_spec, reserved) &&
 	     cmd.flow_attr.size >=
-	     ((struct ib_uverbs_spec *)kern_spec)->size; i++) {
+	     ((struct ib_uverbs_flow_spec *)kern_spec)->size; i++) {
 		err = kern_spec_to_ib_spec(kern_spec, ib_spec);
 		if (err)
 			goto err_free;
 		flow_attr->size +=
 			((union ib_flow_spec *) ib_spec)->size;
-		cmd.flow_attr.size -= ((struct ib_uverbs_spec *)kern_spec)->size;
-		kern_spec += ((struct ib_uverbs_spec *) kern_spec)->size;
+		cmd.flow_attr.size -= ((struct ib_uverbs_flow_spec *)kern_spec)->size;
+		kern_spec += ((struct ib_uverbs_flow_spec *) kern_spec)->size;
 		ib_spec += ((union ib_flow_spec *) ib_spec)->size;
 	}
 	if (cmd.flow_attr.size || (i != flow_attr->num_of_specs)) {
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index 96a660533236..ef2be64bf4c3 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -701,57 +701,57 @@ struct ib_uverbs_detach_mcast {
 };
 
 #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
-struct ib_uverbs_eth_filter {
+struct ib_uverbs_flow_eth_filter {
 	__u8  dst_mac[6];
 	__u8  src_mac[6];
 	__be16 ether_type;
 	__be16 vlan_tag;
 };
 
-struct ib_uverbs_spec_eth {
+struct ib_uverbs_flow_spec_eth {
 	__u32  type;
 	__u16  size;
 	__u16  reserved;
-	struct ib_uverbs_eth_filter val;
-	struct ib_uverbs_eth_filter mask;
+	struct ib_uverbs_flow_eth_filter val;
+	struct ib_uverbs_flow_eth_filter mask;
 };
 
-struct ib_uverbs_ipv4_filter {
+struct ib_uverbs_flow_ipv4_filter {
 	__be32 src_ip;
 	__be32 dst_ip;
 };
 
-struct ib_uverbs_spec_ipv4 {
+struct ib_uverbs_flow_spec_ipv4 {
 	__u32  type;
 	__u16  size;
 	__u16  reserved;
-	struct ib_uverbs_ipv4_filter val;
-	struct ib_uverbs_ipv4_filter mask;
+	struct ib_uverbs_flow_ipv4_filter val;
+	struct ib_uverbs_flow_ipv4_filter mask;
 };
 
-struct ib_uverbs_tcp_udp_filter {
+struct ib_uverbs_flow_tcp_udp_filter {
 	__be16 dst_port;
 	__be16 src_port;
 };
 
-struct ib_uverbs_spec_tcp_udp {
+struct ib_uverbs_flow_spec_tcp_udp {
 	__u32  type;
 	__u16  size;
 	__u16  reserved;
-	struct ib_uverbs_tcp_udp_filter val;
-	struct ib_uverbs_tcp_udp_filter mask;
+	struct ib_uverbs_flow_tcp_udp_filter val;
+	struct ib_uverbs_flow_tcp_udp_filter mask;
 };
 
-struct ib_uverbs_spec {
+struct ib_uverbs_flow_spec {
 	union {
 		struct {
 			__u32 type;
 			__u16 size;
 			__u16 reserved;
 		};
-		struct ib_uverbs_spec_eth	    eth;
-		struct ib_uverbs_spec_ipv4    ipv4;
-		struct ib_uverbs_spec_tcp_udp tcp_udp;
+		struct ib_uverbs_flow_spec_eth	    eth;
+		struct ib_uverbs_flow_spec_ipv4    ipv4;
+		struct ib_uverbs_flow_spec_tcp_udp tcp_udp;
 	};
 };
 
-- 
cgit 


From 58913efba9c3aa7992f2a4d630135ded833d988e Mon Sep 17 00:00:00 2001
From: Yann Droneaud <ydroneaud@opteya.com>
Date: Wed, 6 Nov 2013 23:21:47 +0100
Subject: IB/core: Use a common header for uverbs flow_specs

A common header will allows better checking of flow specs size, while
ensuring strict alignment to 64 bits.

Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Link: http://marc.info/?i=cover.1383773832.git.ydroneaud@opteya.com
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 include/uapi/rdma/ib_user_verbs.h | 53 +++++++++++++++++++++++++++++----------
 1 file changed, 40 insertions(+), 13 deletions(-)

diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index ef2be64bf4c3..43014981550a 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -701,6 +701,14 @@ struct ib_uverbs_detach_mcast {
 };
 
 #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
+struct ib_uverbs_flow_spec_hdr {
+	__u32 type;
+	__u16 size;
+	__u16 reserved;
+	/* followed by flow_spec */
+	__u64 flow_spec_data[0];
+};
+
 struct ib_uverbs_flow_eth_filter {
 	__u8  dst_mac[6];
 	__u8  src_mac[6];
@@ -709,9 +717,14 @@ struct ib_uverbs_flow_eth_filter {
 };
 
 struct ib_uverbs_flow_spec_eth {
-	__u32  type;
-	__u16  size;
-	__u16  reserved;
+	union {
+		struct ib_uverbs_flow_spec_hdr hdr;
+		struct {
+			__u32 type;
+			__u16 size;
+			__u16 reserved;
+		};
+	};
 	struct ib_uverbs_flow_eth_filter val;
 	struct ib_uverbs_flow_eth_filter mask;
 };
@@ -722,9 +735,14 @@ struct ib_uverbs_flow_ipv4_filter {
 };
 
 struct ib_uverbs_flow_spec_ipv4 {
-	__u32  type;
-	__u16  size;
-	__u16  reserved;
+	union {
+		struct ib_uverbs_flow_spec_hdr hdr;
+		struct {
+			__u32 type;
+			__u16 size;
+			__u16 reserved;
+		};
+	};
 	struct ib_uverbs_flow_ipv4_filter val;
 	struct ib_uverbs_flow_ipv4_filter mask;
 };
@@ -735,19 +753,27 @@ struct ib_uverbs_flow_tcp_udp_filter {
 };
 
 struct ib_uverbs_flow_spec_tcp_udp {
-	__u32  type;
-	__u16  size;
-	__u16  reserved;
+	union {
+		struct ib_uverbs_flow_spec_hdr hdr;
+		struct {
+			__u32 type;
+			__u16 size;
+			__u16 reserved;
+		};
+	};
 	struct ib_uverbs_flow_tcp_udp_filter val;
 	struct ib_uverbs_flow_tcp_udp_filter mask;
 };
 
 struct ib_uverbs_flow_spec {
 	union {
-		struct {
-			__u32 type;
-			__u16 size;
-			__u16 reserved;
+		union {
+			struct ib_uverbs_flow_spec_hdr hdr;
+			struct {
+				__u32 type;
+				__u16 size;
+				__u16 reserved;
+			};
 		};
 		struct ib_uverbs_flow_spec_eth	    eth;
 		struct ib_uverbs_flow_spec_ipv4    ipv4;
@@ -767,6 +793,7 @@ struct ib_uverbs_flow_attr {
 	 * struct ib_flow_spec_xxx
 	 * struct ib_flow_spec_yyy
 	 */
+	struct ib_uverbs_flow_spec_hdr flow_specs[0];
 };
 
 struct ib_uverbs_create_flow  {
-- 
cgit 


From 2490f20be496c2da14ae4632a8c60e0633e97fd0 Mon Sep 17 00:00:00 2001
From: Yann Droneaud <ydroneaud@opteya.com>
Date: Wed, 6 Nov 2013 23:21:48 +0100
Subject: IB/core: Remove ib_uverbs_flow_spec structure from userspace

The structure holding any types of flow_spec is of no use to
userspace.  It would be wrong for userspace to do:

  struct ib_uverbs_flow_spec flow_spec;

  flow_spec.type = IB_FLOW_SPEC_TCP;
  flow_spec.size = sizeof(flow_spec);

Instead, userspace should use the dedicated flow_spec structure for
  - Ethernet : struct ib_uverbs_flow_spec_eth,
  - IPv4     : struct ib_uverbs_flow_spec_ipv4,
  - TCP/UDP  : struct ib_uverbs_flow_spec_tcp_udp.

In other words, struct ib_uverbs_flow_spec is a "virtual" data
structure that can only be use by the kernel as an alias to the other.

Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Link: http://marc.info/?i=cover.1383773832.git.ydroneaud@opteya.com
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/core/uverbs.h  | 16 ++++++++++++++++
 include/uapi/rdma/ib_user_verbs.h | 16 ----------------
 2 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h
index d8f9c6c272d7..777954f67270 100644
--- a/drivers/infiniband/core/uverbs.h
+++ b/drivers/infiniband/core/uverbs.h
@@ -178,6 +178,22 @@ void ib_uverbs_event_handler(struct ib_event_handler *handler,
 			     struct ib_event *event);
 void ib_uverbs_dealloc_xrcd(struct ib_uverbs_device *dev, struct ib_xrcd *xrcd);
 
+struct ib_uverbs_flow_spec {
+	union {
+		union {
+			struct ib_uverbs_flow_spec_hdr hdr;
+			struct {
+				__u32 type;
+				__u16 size;
+				__u16 reserved;
+			};
+		};
+		struct ib_uverbs_flow_spec_eth     eth;
+		struct ib_uverbs_flow_spec_ipv4    ipv4;
+		struct ib_uverbs_flow_spec_tcp_udp tcp_udp;
+	};
+};
+
 #define IB_UVERBS_DECLARE_CMD(name)					\
 	ssize_t ib_uverbs_##name(struct ib_uverbs_file *file,		\
 				 const char __user *buf, int in_len,	\
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index 43014981550a..fc9bbe37cfce 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -765,22 +765,6 @@ struct ib_uverbs_flow_spec_tcp_udp {
 	struct ib_uverbs_flow_tcp_udp_filter mask;
 };
 
-struct ib_uverbs_flow_spec {
-	union {
-		union {
-			struct ib_uverbs_flow_spec_hdr hdr;
-			struct {
-				__u32 type;
-				__u16 size;
-				__u16 reserved;
-			};
-		};
-		struct ib_uverbs_flow_spec_eth	    eth;
-		struct ib_uverbs_flow_spec_ipv4    ipv4;
-		struct ib_uverbs_flow_spec_tcp_udp tcp_udp;
-	};
-};
-
 struct ib_uverbs_flow_attr {
 	__u32 type;
 	__u16 size;
-- 
cgit 


From f21519b23c1b6fa25366be4114ccf7fcf1c190f9 Mon Sep 17 00:00:00 2001
From: Yann Droneaud <ydroneaud@opteya.com>
Date: Wed, 6 Nov 2013 23:21:49 +0100
Subject: IB/core: extended command: an improved infrastructure for uverbs
 commands

Commit 400dbc96583f ("IB/core: Infrastructure for extensible uverbs
commands") added an infrastructure for extensible uverbs commands
while later commit 436f2ad05a0b ("IB/core: Export ib_create/destroy_flow
through uverbs") exported ib_create_flow()/ib_destroy_flow() functions
using this new infrastructure.

According to the commit 400dbc96583f, the purpose of this
infrastructure is to support passing around provider (eg. hardware)
specific buffers when userspace issue commands to the kernel, so that
it would be possible to extend uverbs (eg. core) buffers independently
from the provider buffers.

But the new kernel command function prototypes were not modified to
take advantage of this extension. This issue was exposed by Roland
Dreier in a previous review[1].

So the following patch is an attempt to a revised extensible command
infrastructure.

This improved extensible command infrastructure distinguish between
core (eg. legacy)'s command/response buffers from provider
(eg. hardware)'s command/response buffers: each extended command
implementing function is given a struct ib_udata to hold core
(eg. uverbs) input and output buffers, and another struct ib_udata to
hold the hw (eg. provider) input and output buffers.

Having those buffers identified separately make it easier to increase
one buffer to support extension without having to add some code to
guess the exact size of each command/response parts: This should make
the extended functions more reliable.

Additionally, instead of relying on command identifier being greater
than IB_USER_VERBS_CMD_THRESHOLD, the proposed infrastructure rely on
unused bits in command field: on the 32 bits provided by command
field, only 6 bits are really needed to encode the identifier of
commands currently supported by the kernel. (Even using only 6 bits
leaves room for about 23 new commands).

So this patch makes use of some high order bits in command field to
store flags, leaving enough room for more command identifiers than one
will ever need (eg. 256).

The new flags are used to specify if the command should be processed
as an extended one or a legacy one. While designing the new command
format, care was taken to make usage of flags itself extensible.

Using high order bits of the commands field ensure that newer
libibverbs on older kernel will properly fail when trying to call
extended commands. On the other hand, older libibverbs on newer kernel
will never be able to issue calls to extended commands.

The extended command header includes the optional response pointer so
that output buffer length and output buffer pointer are located
together in the command, allowing proper parameters checking. This
should make implementing functions easier and safer.

Additionally the extended header ensure 64bits alignment, while making
all sizes multiple of 8 bytes, extending the maximum buffer size:

                             legacy      extended

   Maximum command buffer:  256KBytes   1024KBytes (512KBytes + 512KBytes)
  Maximum response buffer:  256KBytes   1024KBytes (512KBytes + 512KBytes)

For the purpose of doing proper buffer size accounting, the headers
size are no more taken in account in "in_words".

One of the odds of the current extensible infrastructure, reading
twice the "legacy" command header, is fixed by removing the "legacy"
command header from the extended command header: they are processed as
two different parts of the command: memory is read once and
information are not duplicated: it's making clear that's an extended
command scheme and not a different command scheme.

The proposed scheme will format input (command) and output (response)
buffers this way:

- command:

  legacy header +
  extended header +
  command data (core + hw):

    +----------------------------------------+
    | flags     |   00      00    |  command |
    |        in_words    |   out_words       |
    +----------------------------------------+
    |                 response               |
    |                 response               |
    | provider_in_words | provider_out_words |
    |                 padding                |
    +----------------------------------------+
    |                                        |
    .              <uverbs input>            .
    .              (in_words * 8)            .
    |                                        |
    +----------------------------------------+
    |                                        |
    .             <provider input>           .
    .          (provider_in_words * 8)       .
    |                                        |
    +----------------------------------------+

- response, if present:

    +----------------------------------------+
    |                                        |
    .          <uverbs output space>         .
    .             (out_words * 8)            .
    |                                        |
    +----------------------------------------+
    |                                        |
    .         <provider output space>        .
    .         (provider_out_words * 8)       .
    |                                        |
    +----------------------------------------+

The overall design is to ensure that the extensible infrastructure is
itself extensible while begin more reliable with more input and bound
checking.

Note:

The unused field in the extended header would be perfect candidate to
hold the command "comp_mask" (eg. bit field used to handle
compatibility).  This was suggested by Roland Dreier in a previous
review[2].  But "comp_mask" field is likely to be present in the uverb
input and/or provider input, likewise for the response, as noted by
Matan Barak[3], so it doesn't make sense to put "comp_mask" in the
header.

[1]:
http://marc.info/?i=CAL1RGDWxmM17W2o_era24A-TTDeKyoL6u3NRu_=t_dhV_ZA9MA@mail.gmail.com

[2]:
http://marc.info/?i=CAL1RGDXJtrc849M6_XNZT5xO1+ybKtLWGq6yg6LhoSsKpsmkYA@mail.gmail.com

[3]:
http://marc.info/?i=525C1149.6000701@mellanox.com

Signed-off-by: Yann Droneaud <ydroneaud@opteya.com>
Link: http://marc.info/?i=cover.1383773832.git.ydroneaud@opteya.com

[ Convert "ret ? ret : 0" to the equivalent "ret".  - Roland ]

Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/core/uverbs.h      |  20 +++++-
 drivers/infiniband/core/uverbs_cmd.c  |  56 +++++++--------
 drivers/infiniband/core/uverbs_main.c | 127 ++++++++++++++++++++++++++--------
 drivers/infiniband/hw/mlx4/main.c     |   6 +-
 include/rdma/ib_verbs.h               |   1 +
 include/uapi/rdma/ib_user_verbs.h     |  23 +++---
 6 files changed, 160 insertions(+), 73 deletions(-)

diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h
index 777954f67270..24adccbf92f9 100644
--- a/drivers/infiniband/core/uverbs.h
+++ b/drivers/infiniband/core/uverbs.h
@@ -47,6 +47,14 @@
 #include <rdma/ib_umem.h>
 #include <rdma/ib_user_verbs.h>
 
+#define INIT_UDATA(udata, ibuf, obuf, ilen, olen)			\
+	do {								\
+		(udata)->inbuf  = (void __user *) (ibuf);		\
+		(udata)->outbuf = (void __user *) (obuf);		\
+		(udata)->inlen  = (ilen);				\
+		(udata)->outlen = (olen);				\
+	} while (0)
+
 /*
  * Our lifetime rules for these structs are the following:
  *
@@ -233,9 +241,17 @@ IB_UVERBS_DECLARE_CMD(destroy_srq);
 IB_UVERBS_DECLARE_CMD(create_xsrq);
 IB_UVERBS_DECLARE_CMD(open_xrcd);
 IB_UVERBS_DECLARE_CMD(close_xrcd);
+
 #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
-IB_UVERBS_DECLARE_CMD(create_flow);
-IB_UVERBS_DECLARE_CMD(destroy_flow);
+
+#define IB_UVERBS_DECLARE_EX_CMD(name)				\
+	int ib_uverbs_ex_##name(struct ib_uverbs_file *file,	\
+				struct ib_udata *ucore,		\
+				struct ib_udata *uhw)
+
+IB_UVERBS_DECLARE_EX_CMD(create_flow);
+IB_UVERBS_DECLARE_EX_CMD(destroy_flow);
+
 #endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
 
 #endif /* UVERBS_H */
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 19f14d82c988..33a52785f812 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -58,14 +58,6 @@ static struct uverbs_lock_class xrcd_lock_class = { .name = "XRCD-uobj" };
 static struct uverbs_lock_class rule_lock_class = { .name = "RULE-uobj" };
 #endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
 
-#define INIT_UDATA(udata, ibuf, obuf, ilen, olen)			\
-	do {								\
-		(udata)->inbuf  = (void __user *) (ibuf);		\
-		(udata)->outbuf = (void __user *) (obuf);		\
-		(udata)->inlen  = (ilen);				\
-		(udata)->outlen = (olen);				\
-	} while (0)
-
 /*
  * The ib_uobject locking scheme is as follows:
  *
@@ -2642,9 +2634,9 @@ static int kern_spec_to_ib_spec(struct ib_uverbs_flow_spec *kern_spec,
 	return 0;
 }
 
-ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file,
-			      const char __user *buf, int in_len,
-			      int out_len)
+int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file,
+			     struct ib_udata *ucore,
+			     struct ib_udata *uhw)
 {
 	struct ib_uverbs_create_flow	  cmd;
 	struct ib_uverbs_create_flow_resp resp;
@@ -2658,11 +2650,15 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file,
 	void *ib_spec;
 	int i;
 
-	if (out_len < sizeof(resp))
+	if (ucore->outlen < sizeof(resp))
 		return -ENOSPC;
 
-	if (copy_from_user(&cmd, buf, sizeof(cmd)))
-		return -EFAULT;
+	err = ib_copy_from_udata(&cmd, ucore, sizeof(cmd));
+	if (err)
+		return err;
+
+	ucore->inbuf += sizeof(cmd);
+	ucore->inlen -= sizeof(cmd);
 
 	if (cmd.comp_mask)
 		return -EINVAL;
@@ -2674,7 +2670,7 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file,
 	if (cmd.flow_attr.num_of_specs > IB_FLOW_SPEC_SUPPORT_LAYERS)
 		return -EINVAL;
 
-	if (cmd.flow_attr.size > (in_len - sizeof(cmd)) ||
+	if (cmd.flow_attr.size > ucore->inlen ||
 	    cmd.flow_attr.size >
 	    (cmd.flow_attr.num_of_specs * sizeof(struct ib_uverbs_flow_spec)))
 		return -EINVAL;
@@ -2686,11 +2682,10 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file,
 			return -ENOMEM;
 
 		memcpy(kern_flow_attr, &cmd.flow_attr, sizeof(*kern_flow_attr));
-		if (copy_from_user(kern_flow_attr + 1, buf + sizeof(cmd),
-				   cmd.flow_attr.size)) {
-			err = -EFAULT;
+		err = ib_copy_from_udata(kern_flow_attr + 1, ucore,
+					 cmd.flow_attr.size);
+		if (err)
 			goto err_free_attr;
-		}
 	} else {
 		kern_flow_attr = &cmd.flow_attr;
 	}
@@ -2758,11 +2753,10 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file,
 	memset(&resp, 0, sizeof(resp));
 	resp.flow_handle = uobj->id;
 
-	if (copy_to_user((void __user *)(unsigned long) cmd.response,
-			 &resp, sizeof(resp))) {
-		err = -EFAULT;
+	err = ib_copy_to_udata(ucore,
+			       &resp, sizeof(resp));
+	if (err)
 		goto err_copy;
-	}
 
 	put_qp_read(qp);
 	mutex_lock(&file->mutex);
@@ -2775,7 +2769,7 @@ ssize_t ib_uverbs_create_flow(struct ib_uverbs_file *file,
 	kfree(flow_attr);
 	if (cmd.flow_attr.num_of_specs)
 		kfree(kern_flow_attr);
-	return in_len;
+	return 0;
 err_copy:
 	idr_remove_uobj(&ib_uverbs_rule_idr, uobj);
 destroy_flow:
@@ -2792,16 +2786,18 @@ err_free_attr:
 	return err;
 }
 
-ssize_t ib_uverbs_destroy_flow(struct ib_uverbs_file *file,
-			       const char __user *buf, int in_len,
-			       int out_len) {
+int ib_uverbs_ex_destroy_flow(struct ib_uverbs_file *file,
+			      struct ib_udata *ucore,
+			      struct ib_udata *uhw)
+{
 	struct ib_uverbs_destroy_flow	cmd;
 	struct ib_flow			*flow_id;
 	struct ib_uobject		*uobj;
 	int				ret;
 
-	if (copy_from_user(&cmd, buf, sizeof(cmd)))
-		return -EFAULT;
+	ret = ib_copy_from_udata(&cmd, ucore, sizeof(cmd));
+	if (ret)
+		return ret;
 
 	uobj = idr_write_uobj(&ib_uverbs_rule_idr, cmd.flow_handle,
 			      file->ucontext);
@@ -2823,7 +2819,7 @@ ssize_t ib_uverbs_destroy_flow(struct ib_uverbs_file *file,
 
 	put_uobj(uobj);
 
-	return ret ? ret : in_len;
+	return ret;
 }
 #endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
 
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 2df31f68ea09..189d99e76d9f 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -115,11 +115,16 @@ static ssize_t (*uverbs_cmd_table[])(struct ib_uverbs_file *file,
 	[IB_USER_VERBS_CMD_CLOSE_XRCD]		= ib_uverbs_close_xrcd,
 	[IB_USER_VERBS_CMD_CREATE_XSRQ]		= ib_uverbs_create_xsrq,
 	[IB_USER_VERBS_CMD_OPEN_QP]		= ib_uverbs_open_qp,
+};
+
 #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
-	[IB_USER_VERBS_CMD_CREATE_FLOW]		= ib_uverbs_create_flow,
-	[IB_USER_VERBS_CMD_DESTROY_FLOW]	= ib_uverbs_destroy_flow
-#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
+static int (*uverbs_ex_cmd_table[])(struct ib_uverbs_file *file,
+				    struct ib_udata *ucore,
+				    struct ib_udata *uhw) = {
+	[IB_USER_VERBS_EX_CMD_CREATE_FLOW]	= ib_uverbs_ex_create_flow,
+	[IB_USER_VERBS_EX_CMD_DESTROY_FLOW]	= ib_uverbs_ex_destroy_flow
 };
+#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
 
 static void ib_uverbs_add_one(struct ib_device *device);
 static void ib_uverbs_remove_one(struct ib_device *device);
@@ -589,6 +594,7 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
 {
 	struct ib_uverbs_file *file = filp->private_data;
 	struct ib_uverbs_cmd_hdr hdr;
+	__u32 flags;
 
 	if (count < sizeof hdr)
 		return -EINVAL;
@@ -596,45 +602,108 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
 	if (copy_from_user(&hdr, buf, sizeof hdr))
 		return -EFAULT;
 
-	if (hdr.command >= ARRAY_SIZE(uverbs_cmd_table) ||
-	    !uverbs_cmd_table[hdr.command])
-		return -EINVAL;
+	flags = (hdr.command &
+		 IB_USER_VERBS_CMD_FLAGS_MASK) >> IB_USER_VERBS_CMD_FLAGS_SHIFT;
 
-	if (!file->ucontext &&
-	    hdr.command != IB_USER_VERBS_CMD_GET_CONTEXT)
-		return -EINVAL;
+	if (!flags) {
+		__u32 command;
 
-	if (!(file->device->ib_dev->uverbs_cmd_mask & (1ull << hdr.command)))
-		return -ENOSYS;
+		if (hdr.command & ~(__u32)(IB_USER_VERBS_CMD_FLAGS_MASK |
+					   IB_USER_VERBS_CMD_COMMAND_MASK))
+			return -EINVAL;
 
-#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
-	if (hdr.command >= IB_USER_VERBS_CMD_THRESHOLD) {
-		struct ib_uverbs_cmd_hdr_ex hdr_ex;
+		command = hdr.command & IB_USER_VERBS_CMD_COMMAND_MASK;
 
-		if (copy_from_user(&hdr_ex, buf, sizeof(hdr_ex)))
-			return -EFAULT;
+		if (command >= ARRAY_SIZE(uverbs_cmd_table) ||
+		    !uverbs_cmd_table[command])
+			return -EINVAL;
 
-		if (((hdr_ex.in_words + hdr_ex.provider_in_words) * 4) != count)
+		if (!file->ucontext &&
+		    command != IB_USER_VERBS_CMD_GET_CONTEXT)
 			return -EINVAL;
 
-		return uverbs_cmd_table[hdr.command](file,
-						     buf + sizeof(hdr_ex),
-						     (hdr_ex.in_words +
-						      hdr_ex.provider_in_words) * 4,
-						     (hdr_ex.out_words +
-						      hdr_ex.provider_out_words) * 4);
-	} else {
-#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
+		if (!(file->device->ib_dev->uverbs_cmd_mask & (1ull << command)))
+			return -ENOSYS;
+
 		if (hdr.in_words * 4 != count)
 			return -EINVAL;
 
-		return uverbs_cmd_table[hdr.command](file,
-						     buf + sizeof(hdr),
-						     hdr.in_words * 4,
-						     hdr.out_words * 4);
+		return uverbs_cmd_table[command](file,
+						 buf + sizeof(hdr),
+						 hdr.in_words * 4,
+						 hdr.out_words * 4);
+
 #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
+
+	} else if (flags == IB_USER_VERBS_CMD_FLAG_EXTENDED) {
+		__u32 command;
+
+		struct ib_uverbs_ex_cmd_hdr ex_hdr;
+		struct ib_udata ucore;
+		struct ib_udata uhw;
+		int err;
+		size_t written_count = count;
+
+		if (hdr.command & ~(__u32)(IB_USER_VERBS_CMD_FLAGS_MASK |
+					   IB_USER_VERBS_CMD_COMMAND_MASK))
+			return -EINVAL;
+
+		command = hdr.command & IB_USER_VERBS_CMD_COMMAND_MASK;
+
+		if (command >= ARRAY_SIZE(uverbs_ex_cmd_table) ||
+		    !uverbs_ex_cmd_table[command])
+			return -ENOSYS;
+
+		if (!file->ucontext)
+			return -EINVAL;
+
+		if (!(file->device->ib_dev->uverbs_ex_cmd_mask & (1ull << command)))
+			return -ENOSYS;
+
+		if (count < (sizeof(hdr) + sizeof(ex_hdr)))
+			return -EINVAL;
+
+		if (copy_from_user(&ex_hdr, buf + sizeof(hdr), sizeof(ex_hdr)))
+			return -EFAULT;
+
+		count -= sizeof(hdr) + sizeof(ex_hdr);
+		buf += sizeof(hdr) + sizeof(ex_hdr);
+
+		if ((hdr.in_words + ex_hdr.provider_in_words) * 8 != count)
+			return -EINVAL;
+
+		if (ex_hdr.response) {
+			if (!hdr.out_words && !ex_hdr.provider_out_words)
+				return -EINVAL;
+		} else {
+			if (hdr.out_words || ex_hdr.provider_out_words)
+				return -EINVAL;
+		}
+
+		INIT_UDATA(&ucore,
+			   (hdr.in_words) ? buf : 0,
+			   (unsigned long)ex_hdr.response,
+			   hdr.in_words * 8,
+			   hdr.out_words * 8);
+
+		INIT_UDATA(&uhw,
+			   (ex_hdr.provider_in_words) ? buf + ucore.inlen : 0,
+			   (ex_hdr.provider_out_words) ? (unsigned long)ex_hdr.response + ucore.outlen : 0,
+			   ex_hdr.provider_in_words * 8,
+			   ex_hdr.provider_out_words * 8);
+
+		err = uverbs_ex_cmd_table[command](file,
+						   &ucore,
+						   &uhw);
+
+		if (err)
+			return err;
+
+		return written_count;
 	}
 #endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
+
+	return -ENOSYS;
 }
 
 static int ib_uverbs_mmap(struct file *filp, struct vm_area_struct *vma)
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index f0612645de99..4be29fef66d6 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -1692,9 +1692,9 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
 		ibdev->ib_dev.destroy_flow	= mlx4_ib_destroy_flow;
 
 #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
-		ibdev->ib_dev.uverbs_cmd_mask	|=
-			(1ull << IB_USER_VERBS_CMD_CREATE_FLOW) |
-			(1ull << IB_USER_VERBS_CMD_DESTROY_FLOW);
+		ibdev->ib_dev.uverbs_ex_cmd_mask	|=
+			(1ull << IB_USER_VERBS_EX_CMD_CREATE_FLOW) |
+			(1ull << IB_USER_VERBS_EX_CMD_DESTROY_FLOW);
 #endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
 	}
 
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index e393171e2fac..a06fc122f803 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1436,6 +1436,7 @@ struct ib_device {
 
 	int			     uverbs_abi_ver;
 	u64			     uverbs_cmd_mask;
+	u64			     uverbs_ex_cmd_mask;
 
 	char			     node_desc[64];
 	__be64			     node_guid;
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index fc9bbe37cfce..6ace125e1af6 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -87,11 +87,14 @@ enum {
 	IB_USER_VERBS_CMD_CLOSE_XRCD,
 	IB_USER_VERBS_CMD_CREATE_XSRQ,
 	IB_USER_VERBS_CMD_OPEN_QP,
+};
+
 #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
-	IB_USER_VERBS_CMD_CREATE_FLOW = IB_USER_VERBS_CMD_THRESHOLD,
-	IB_USER_VERBS_CMD_DESTROY_FLOW
-#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
+enum {
+	IB_USER_VERBS_EX_CMD_CREATE_FLOW = IB_USER_VERBS_CMD_THRESHOLD,
+	IB_USER_VERBS_EX_CMD_DESTROY_FLOW
 };
+#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
 
 /*
  * Make sure that all structs defined in this file remain laid out so
@@ -122,6 +125,12 @@ struct ib_uverbs_comp_event_desc {
  * the rest of the command struct based on these value.
  */
 
+#define IB_USER_VERBS_CMD_COMMAND_MASK 0xff
+#define IB_USER_VERBS_CMD_FLAGS_MASK 0xff000000u
+#define IB_USER_VERBS_CMD_FLAGS_SHIFT 24
+
+#define IB_USER_VERBS_CMD_FLAG_EXTENDED 0x80
+
 struct ib_uverbs_cmd_hdr {
 	__u32 command;
 	__u16 in_words;
@@ -129,10 +138,8 @@ struct ib_uverbs_cmd_hdr {
 };
 
 #ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
-struct ib_uverbs_cmd_hdr_ex {
-	__u32 command;
-	__u16 in_words;
-	__u16 out_words;
+struct ib_uverbs_ex_cmd_hdr {
+	__u64 response;
 	__u16 provider_in_words;
 	__u16 provider_out_words;
 	__u32 cmd_hdr_reserved;
@@ -782,8 +789,6 @@ struct ib_uverbs_flow_attr {
 
 struct ib_uverbs_create_flow  {
 	__u32 comp_mask;
-	__u32 reserved;
-	__u64 response;
 	__u32 qp_handle;
 	struct ib_uverbs_flow_attr flow_attr;
 };
-- 
cgit 


From 69ad5da41b4ed94aef31d4111a3442cfd73ce570 Mon Sep 17 00:00:00 2001
From: Matan Barak <matanb@mellanox.com>
Date: Wed, 6 Nov 2013 23:21:50 +0100
Subject: IB/core: Re-enable create_flow/destroy_flow uverbs

This commit reverts commit 7afbddfae993 ("IB/core: Temporarily disable
create_flow/destroy_flow uverbs").  Since the uverbs extensions
functionality was experimental for v3.12, this patch re-enables the
support for them and flow-steering for v3.13.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
---
 drivers/infiniband/Kconfig            | 11 -----------
 drivers/infiniband/core/uverbs.h      |  4 ----
 drivers/infiniband/core/uverbs_cmd.c  |  4 ----
 drivers/infiniband/core/uverbs_main.c |  5 -----
 drivers/infiniband/hw/mlx4/main.c     |  2 --
 include/uapi/rdma/ib_user_verbs.h     |  6 ------
 6 files changed, 32 deletions(-)

diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
index b84791f03a27..5ceda710f516 100644
--- a/drivers/infiniband/Kconfig
+++ b/drivers/infiniband/Kconfig
@@ -31,17 +31,6 @@ config INFINIBAND_USER_ACCESS
 	  libibverbs, libibcm and a hardware driver library from
 	  <http://www.openfabrics.org/git/>.
 
-config INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
-       bool "Experimental and unstable ABI for userspace access to flow steering verbs"
-       depends on INFINIBAND_USER_ACCESS
-       depends on STAGING
-	---help---
-	  The final ABI for userspace access to flow steering verbs
-	  has not been defined.  To use the current ABI, *WHICH WILL
-	  CHANGE IN THE FUTURE*, say Y here.
-
-	  If unsure, say N.
-
 config INFINIBAND_USER_MEM
 	bool
 	depends on INFINIBAND_USER_ACCESS != n
diff --git a/drivers/infiniband/core/uverbs.h b/drivers/infiniband/core/uverbs.h
index 24adccbf92f9..bdc842e9faef 100644
--- a/drivers/infiniband/core/uverbs.h
+++ b/drivers/infiniband/core/uverbs.h
@@ -242,8 +242,6 @@ IB_UVERBS_DECLARE_CMD(create_xsrq);
 IB_UVERBS_DECLARE_CMD(open_xrcd);
 IB_UVERBS_DECLARE_CMD(close_xrcd);
 
-#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
-
 #define IB_UVERBS_DECLARE_EX_CMD(name)				\
 	int ib_uverbs_ex_##name(struct ib_uverbs_file *file,	\
 				struct ib_udata *ucore,		\
@@ -252,6 +250,4 @@ IB_UVERBS_DECLARE_CMD(close_xrcd);
 IB_UVERBS_DECLARE_EX_CMD(create_flow);
 IB_UVERBS_DECLARE_EX_CMD(destroy_flow);
 
-#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
-
 #endif /* UVERBS_H */
diff --git a/drivers/infiniband/core/uverbs_cmd.c b/drivers/infiniband/core/uverbs_cmd.c
index 33a52785f812..8233744b4140 100644
--- a/drivers/infiniband/core/uverbs_cmd.c
+++ b/drivers/infiniband/core/uverbs_cmd.c
@@ -54,9 +54,7 @@ static struct uverbs_lock_class qp_lock_class	= { .name = "QP-uobj" };
 static struct uverbs_lock_class ah_lock_class	= { .name = "AH-uobj" };
 static struct uverbs_lock_class srq_lock_class	= { .name = "SRQ-uobj" };
 static struct uverbs_lock_class xrcd_lock_class = { .name = "XRCD-uobj" };
-#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
 static struct uverbs_lock_class rule_lock_class = { .name = "RULE-uobj" };
-#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
 
 /*
  * The ib_uobject locking scheme is as follows:
@@ -2593,7 +2591,6 @@ out_put:
 	return ret ? ret : in_len;
 }
 
-#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
 static int kern_spec_to_ib_spec(struct ib_uverbs_flow_spec *kern_spec,
 				union ib_flow_spec *ib_spec)
 {
@@ -2821,7 +2818,6 @@ int ib_uverbs_ex_destroy_flow(struct ib_uverbs_file *file,
 
 	return ret;
 }
-#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
 
 static int __uverbs_create_xsrq(struct ib_uverbs_file *file,
 				struct ib_uverbs_create_xsrq *cmd,
diff --git a/drivers/infiniband/core/uverbs_main.c b/drivers/infiniband/core/uverbs_main.c
index 189d99e76d9f..34386943ebcf 100644
--- a/drivers/infiniband/core/uverbs_main.c
+++ b/drivers/infiniband/core/uverbs_main.c
@@ -117,14 +117,12 @@ static ssize_t (*uverbs_cmd_table[])(struct ib_uverbs_file *file,
 	[IB_USER_VERBS_CMD_OPEN_QP]		= ib_uverbs_open_qp,
 };
 
-#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
 static int (*uverbs_ex_cmd_table[])(struct ib_uverbs_file *file,
 				    struct ib_udata *ucore,
 				    struct ib_udata *uhw) = {
 	[IB_USER_VERBS_EX_CMD_CREATE_FLOW]	= ib_uverbs_ex_create_flow,
 	[IB_USER_VERBS_EX_CMD_DESTROY_FLOW]	= ib_uverbs_ex_destroy_flow
 };
-#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
 
 static void ib_uverbs_add_one(struct ib_device *device);
 static void ib_uverbs_remove_one(struct ib_device *device);
@@ -633,8 +631,6 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
 						 hdr.in_words * 4,
 						 hdr.out_words * 4);
 
-#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
-
 	} else if (flags == IB_USER_VERBS_CMD_FLAG_EXTENDED) {
 		__u32 command;
 
@@ -701,7 +697,6 @@ static ssize_t ib_uverbs_write(struct file *filp, const char __user *buf,
 
 		return written_count;
 	}
-#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
 
 	return -ENOSYS;
 }
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 4be29fef66d6..1aad9b3e6bdd 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -1691,11 +1691,9 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
 		ibdev->ib_dev.create_flow	= mlx4_ib_create_flow;
 		ibdev->ib_dev.destroy_flow	= mlx4_ib_destroy_flow;
 
-#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
 		ibdev->ib_dev.uverbs_ex_cmd_mask	|=
 			(1ull << IB_USER_VERBS_EX_CMD_CREATE_FLOW) |
 			(1ull << IB_USER_VERBS_EX_CMD_DESTROY_FLOW);
-#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
 	}
 
 	mlx4_ib_alloc_eqs(dev, ibdev);
diff --git a/include/uapi/rdma/ib_user_verbs.h b/include/uapi/rdma/ib_user_verbs.h
index 6ace125e1af6..cbfdd4ca9510 100644
--- a/include/uapi/rdma/ib_user_verbs.h
+++ b/include/uapi/rdma/ib_user_verbs.h
@@ -89,12 +89,10 @@ enum {
 	IB_USER_VERBS_CMD_OPEN_QP,
 };
 
-#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
 enum {
 	IB_USER_VERBS_EX_CMD_CREATE_FLOW = IB_USER_VERBS_CMD_THRESHOLD,
 	IB_USER_VERBS_EX_CMD_DESTROY_FLOW
 };
-#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
 
 /*
  * Make sure that all structs defined in this file remain laid out so
@@ -137,14 +135,12 @@ struct ib_uverbs_cmd_hdr {
 	__u16 out_words;
 };
 
-#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
 struct ib_uverbs_ex_cmd_hdr {
 	__u64 response;
 	__u16 provider_in_words;
 	__u16 provider_out_words;
 	__u32 cmd_hdr_reserved;
 };
-#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
 
 struct ib_uverbs_get_context {
 	__u64 response;
@@ -707,7 +703,6 @@ struct ib_uverbs_detach_mcast {
 	__u64 driver_data[0];
 };
 
-#ifdef CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING
 struct ib_uverbs_flow_spec_hdr {
 	__u32 type;
 	__u16 size;
@@ -802,7 +797,6 @@ struct ib_uverbs_destroy_flow  {
 	__u32 comp_mask;
 	__u32 flow_handle;
 };
-#endif /* CONFIG_INFINIBAND_EXPERIMENTAL_UVERBS_FLOW_STEERING */
 
 struct ib_uverbs_create_srq {
 	__u64 response;
-- 
cgit 


From 5e47eec00425830bfaf30f80a1a4f603dc60ae93 Mon Sep 17 00:00:00 2001
From: Andreas Werner <wernerandy@gmx.de>
Date: Sun, 17 Nov 2013 18:46:20 +0100
Subject: i2c: i2c-eg20t: do not print error message in syslog if no ACK
 received

Using the i2c-eg20t driver and call i2cdetect or probe on the bus,
the driver will print a lot of error messages if there was no ACK
received.

i2cdetect normally print a table with all the available devices. If there
is no device on the address, the table will be empty.
Currently with the i2c-eg20t driver, the table is not visible because
the error messages destroy the table.

Error message: pch_i2c_getack return -71

This patch prevent the driver to print the messages to syslog.
The pch_i2c_wait_for_check_xfer function is the only one who is
calling pch_i2c_getack, so we can delete the function and add the
read to pch_i2c_wait_for_check_xfer.
If no ACK is received, the Message will be printed as a dbg
message.

Fixed print message to be a one liner so we can grep for the
error message.

Tested on Intel Atom E6xx and Eg20t Chipset.

Signed-off-by: Andreas Werner <wernerandy@gmx.de>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-eg20t.c | 26 ++++----------------------
 1 file changed, 4 insertions(+), 22 deletions(-)

diff --git a/drivers/i2c/busses/i2c-eg20t.c b/drivers/i2c/busses/i2c-eg20t.c
index 0f3752967c4b..ff15ae90aaf5 100644
--- a/drivers/i2c/busses/i2c-eg20t.c
+++ b/drivers/i2c/busses/i2c-eg20t.c
@@ -311,24 +311,6 @@ static void pch_i2c_start(struct i2c_algo_pch_data *adap)
 	pch_setbit(adap->pch_base_address, PCH_I2CCTL, PCH_START);
 }
 
-/**
- * pch_i2c_getack() - to confirm ACK/NACK
- * @adap:	Pointer to struct i2c_algo_pch_data.
- */
-static s32 pch_i2c_getack(struct i2c_algo_pch_data *adap)
-{
-	u32 reg_val;
-	void __iomem *p = adap->pch_base_address;
-	reg_val = ioread32(p + PCH_I2CSR) & PCH_GETACK;
-
-	if (reg_val != 0) {
-		pch_err(adap, "return%d\n", -EPROTO);
-		return -EPROTO;
-	}
-
-	return 0;
-}
-
 /**
  * pch_i2c_stop() - generate stop condition in normal mode.
  * @adap:	Pointer to struct i2c_algo_pch_data.
@@ -344,6 +326,7 @@ static void pch_i2c_stop(struct i2c_algo_pch_data *adap)
 static int pch_i2c_wait_for_check_xfer(struct i2c_algo_pch_data *adap)
 {
 	long ret;
+	void __iomem *p = adap->pch_base_address;
 
 	ret = wait_event_timeout(pch_event,
 			(adap->pch_event_flag != 0), msecs_to_jiffies(1000));
@@ -366,10 +349,9 @@ static int pch_i2c_wait_for_check_xfer(struct i2c_algo_pch_data *adap)
 
 	adap->pch_event_flag = 0;
 
-	if (pch_i2c_getack(adap)) {
-		pch_dbg(adap, "Receive NACK for slave address"
-			"setting\n");
-		return -EIO;
+	if (ioread32(p + PCH_I2CSR) & PCH_GETACK) {
+		pch_dbg(adap, "Receive NACK for slave address setting\n");
+		return -ENXIO;
 	}
 
 	return 0;
-- 
cgit 


From ad83c6cbf30eba322fbc822453316a4954d9b607 Mon Sep 17 00:00:00 2001
From: Heiko Stübner <heiko@sntech.de>
Date: Wed, 26 Jun 2013 20:03:52 +0200
Subject: watchdog: dw_wdt: convert to SIMPLE_DEV_PM_OPS

The dw_wdt only provides PM_SLEEP operations, so convert the driver
to use SIMPLE_DEV_PM_OPS instead of populating the struct manually.
This has the added effect of simplifying the CONFIG_PM ifdefs.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/dw_wdt.c | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c
index e621098bf663..4d3906d7c9a5 100644
--- a/drivers/watchdog/dw_wdt.c
+++ b/drivers/watchdog/dw_wdt.c
@@ -252,7 +252,7 @@ static int dw_wdt_release(struct inode *inode, struct file *filp)
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_SLEEP
 static int dw_wdt_suspend(struct device *dev)
 {
 	clk_disable(dw_wdt.clk);
@@ -271,12 +271,9 @@ static int dw_wdt_resume(struct device *dev)
 
 	return 0;
 }
+#endif /* CONFIG_PM_SLEEP */
 
-static const struct dev_pm_ops dw_wdt_pm_ops = {
-	.suspend	= dw_wdt_suspend,
-	.resume		= dw_wdt_resume,
-};
-#endif /* CONFIG_PM */
+static SIMPLE_DEV_PM_OPS(dw_wdt_pm_ops, dw_wdt_suspend, dw_wdt_resume);
 
 static const struct file_operations wdt_fops = {
 	.owner		= THIS_MODULE,
@@ -346,9 +343,7 @@ static struct platform_driver dw_wdt_driver = {
 	.driver		= {
 		.name	= "dw_wdt",
 		.owner	= THIS_MODULE,
-#ifdef CONFIG_PM
 		.pm	= &dw_wdt_pm_ops,
-#endif /* CONFIG_PM */
 	},
 };
 
-- 
cgit 


From 280103e6b5de6ae1e23d9067202cdd67dd06b490 Mon Sep 17 00:00:00 2001
From: Heiko Stübner <heiko@sntech.de>
Date: Wed, 26 Jun 2013 20:04:31 +0200
Subject: watchdog: dw_wdt: use clk_prepare_enable and clk_disable_unprepare

This is necessary to make the driver work with platforms using the
common clock framework.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/dw_wdt.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c
index 4d3906d7c9a5..b922bec45d15 100644
--- a/drivers/watchdog/dw_wdt.c
+++ b/drivers/watchdog/dw_wdt.c
@@ -255,14 +255,14 @@ static int dw_wdt_release(struct inode *inode, struct file *filp)
 #ifdef CONFIG_PM_SLEEP
 static int dw_wdt_suspend(struct device *dev)
 {
-	clk_disable(dw_wdt.clk);
+	clk_disable_unprepare(dw_wdt.clk);
 
 	return 0;
 }
 
 static int dw_wdt_resume(struct device *dev)
 {
-	int err = clk_enable(dw_wdt.clk);
+	int err = clk_prepare_enable(dw_wdt.clk);
 
 	if (err)
 		return err;
@@ -306,7 +306,7 @@ static int dw_wdt_drv_probe(struct platform_device *pdev)
 	if (IS_ERR(dw_wdt.clk))
 		return PTR_ERR(dw_wdt.clk);
 
-	ret = clk_enable(dw_wdt.clk);
+	ret = clk_prepare_enable(dw_wdt.clk);
 	if (ret)
 		return ret;
 
@@ -323,7 +323,7 @@ static int dw_wdt_drv_probe(struct platform_device *pdev)
 	return 0;
 
 out_disable_clk:
-	clk_disable(dw_wdt.clk);
+	clk_disable_unprepare(dw_wdt.clk);
 
 	return ret;
 }
@@ -332,7 +332,7 @@ static int dw_wdt_drv_remove(struct platform_device *pdev)
 {
 	misc_deregister(&dw_wdt_miscdev);
 
-	clk_disable(dw_wdt.clk);
+	clk_disable_unprepare(dw_wdt.clk);
 
 	return 0;
 }
-- 
cgit 


From 813296a1a209baaf1471c360591946edd795bcbe Mon Sep 17 00:00:00 2001
From: Niels de Vos <ndevos@redhat.com>
Date: Mon, 29 Jul 2013 09:38:18 +0200
Subject: watchdog: imx2_wdt: expose module alias for loading from device-tree

Enable auto loading by udev when imx2_wdt is compiled as a module.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/imx2_wdt.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c
index 693ac3f4de5a..17680aa6cb32 100644
--- a/drivers/watchdog/imx2_wdt.c
+++ b/drivers/watchdog/imx2_wdt.c
@@ -322,6 +322,7 @@ static const struct of_device_id imx2_wdt_dt_ids[] = {
 	{ .compatible = "fsl,imx21-wdt", },
 	{ /* sentinel */ }
 };
+MODULE_DEVICE_TABLE(of, imx2_wdt_dt_ids);
 
 static struct platform_driver imx2_wdt_driver = {
 	.remove		= __exit_p(imx2_wdt_remove),
-- 
cgit 


From bc8fdfbe75058c6569dd6a08bdc2a411db533c47 Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Tue, 30 Jul 2013 19:58:51 +0900
Subject: watchdog: use dev_get_platdata()

Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/iTCO_wdt.c         | 2 +-
 drivers/watchdog/mv64x60_wdt.c      | 2 +-
 drivers/watchdog/omap_wdt.c         | 2 +-
 drivers/watchdog/rdc321x_wdt.c      | 2 +-
 drivers/watchdog/stmp3xxx_rtc_wdt.c | 4 ++--
 drivers/watchdog/ux500_wdt.c        | 2 +-
 drivers/watchdog/wm831x_wdt.c       | 8 +++-----
 7 files changed, 10 insertions(+), 12 deletions(-)

diff --git a/drivers/watchdog/iTCO_wdt.c b/drivers/watchdog/iTCO_wdt.c
index 6130321da387..439b160b3e0f 100644
--- a/drivers/watchdog/iTCO_wdt.c
+++ b/drivers/watchdog/iTCO_wdt.c
@@ -394,7 +394,7 @@ static int iTCO_wdt_probe(struct platform_device *dev)
 {
 	int ret = -ENODEV;
 	unsigned long val32;
-	struct lpc_ich_info *ich_info = dev->dev.platform_data;
+	struct lpc_ich_info *ich_info = dev_get_platdata(&dev->dev);
 
 	if (!ich_info)
 		goto out;
diff --git a/drivers/watchdog/mv64x60_wdt.c b/drivers/watchdog/mv64x60_wdt.c
index e4cf98019265..2f2ff19da6e2 100644
--- a/drivers/watchdog/mv64x60_wdt.c
+++ b/drivers/watchdog/mv64x60_wdt.c
@@ -255,7 +255,7 @@ static struct miscdevice mv64x60_wdt_miscdev = {
 
 static int mv64x60_wdt_probe(struct platform_device *dev)
 {
-	struct mv64x60_wdt_pdata *pdata = dev->dev.platform_data;
+	struct mv64x60_wdt_pdata *pdata = dev_get_platdata(&dev->dev);
 	struct resource *r;
 	int timeout = 10;
 
diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
index af88ffd1068f..7b79ca093e89 100644
--- a/drivers/watchdog/omap_wdt.c
+++ b/drivers/watchdog/omap_wdt.c
@@ -205,7 +205,7 @@ static const struct watchdog_ops omap_wdt_ops = {
 
 static int omap_wdt_probe(struct platform_device *pdev)
 {
-	struct omap_wd_timer_platform_data *pdata = pdev->dev.platform_data;
+	struct omap_wd_timer_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct watchdog_device *omap_wdt;
 	struct resource *res, *mem;
 	struct omap_wdt_dev *wdev;
diff --git a/drivers/watchdog/rdc321x_wdt.c b/drivers/watchdog/rdc321x_wdt.c
index b0f116c2fd53..8d5facd680b1 100644
--- a/drivers/watchdog/rdc321x_wdt.c
+++ b/drivers/watchdog/rdc321x_wdt.c
@@ -231,7 +231,7 @@ static int rdc321x_wdt_probe(struct platform_device *pdev)
 	struct resource *r;
 	struct rdc321x_wdt_pdata *pdata;
 
-	pdata = pdev->dev.platform_data;
+	pdata = dev_get_platdata(&pdev->dev);
 	if (!pdata) {
 		dev_err(&pdev->dev, "no platform data supplied\n");
 		return -ENODEV;
diff --git a/drivers/watchdog/stmp3xxx_rtc_wdt.c b/drivers/watchdog/stmp3xxx_rtc_wdt.c
index c97e98dcde62..7bf8c508862b 100644
--- a/drivers/watchdog/stmp3xxx_rtc_wdt.c
+++ b/drivers/watchdog/stmp3xxx_rtc_wdt.c
@@ -30,7 +30,7 @@ MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat period in seconds from 1 to "
 static int wdt_start(struct watchdog_device *wdd)
 {
 	struct device *dev = watchdog_get_drvdata(wdd);
-	struct stmp3xxx_wdt_pdata *pdata = dev->platform_data;
+	struct stmp3xxx_wdt_pdata *pdata = dev_get_platdata(dev);
 
 	pdata->wdt_set_timeout(dev->parent, wdd->timeout * WDOG_TICK_RATE);
 	return 0;
@@ -39,7 +39,7 @@ static int wdt_start(struct watchdog_device *wdd)
 static int wdt_stop(struct watchdog_device *wdd)
 {
 	struct device *dev = watchdog_get_drvdata(wdd);
-	struct stmp3xxx_wdt_pdata *pdata = dev->platform_data;
+	struct stmp3xxx_wdt_pdata *pdata = dev_get_platdata(dev);
 
 	pdata->wdt_set_timeout(dev->parent, 0);
 	return 0;
diff --git a/drivers/watchdog/ux500_wdt.c b/drivers/watchdog/ux500_wdt.c
index a614d84121c3..d9af93458df3 100644
--- a/drivers/watchdog/ux500_wdt.c
+++ b/drivers/watchdog/ux500_wdt.c
@@ -88,7 +88,7 @@ static struct watchdog_device ux500_wdt = {
 static int ux500_wdt_probe(struct platform_device *pdev)
 {
 	int ret;
-	struct ux500_wdt_data *pdata = pdev->dev.platform_data;
+	struct ux500_wdt_data *pdata = dev_get_platdata(&pdev->dev);
 
 	if (pdata) {
 		if (pdata->timeout > 0)
diff --git a/drivers/watchdog/wm831x_wdt.c b/drivers/watchdog/wm831x_wdt.c
index d4e47eda4182..e243bd01c774 100644
--- a/drivers/watchdog/wm831x_wdt.c
+++ b/drivers/watchdog/wm831x_wdt.c
@@ -184,7 +184,7 @@ static const struct watchdog_ops wm831x_wdt_ops = {
 static int wm831x_wdt_probe(struct platform_device *pdev)
 {
 	struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
-	struct wm831x_pdata *chip_pdata;
+	struct wm831x_pdata *chip_pdata = dev_get_platdata(pdev->dev.parent);
 	struct wm831x_watchdog_pdata *pdata;
 	struct wm831x_wdt_drvdata *driver_data;
 	struct watchdog_device *wm831x_wdt;
@@ -231,12 +231,10 @@ static int wm831x_wdt_probe(struct platform_device *pdev)
 		wm831x_wdt->timeout = wm831x_wdt_cfgs[i].time;
 
 	/* Apply any configuration */
-	if (pdev->dev.parent->platform_data) {
-		chip_pdata = pdev->dev.parent->platform_data;
+	if (chip_pdata)
 		pdata = chip_pdata->watchdog;
-	} else {
+	else
 		pdata = NULL;
-	}
 
 	if (pdata) {
 		reg &= ~(WM831X_WDOG_SECACT_MASK | WM831X_WDOG_PRIMACT_MASK |
-- 
cgit 


From 60295507f6abf47a40d1fd758cd4401e7193f16e Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 1 Aug 2013 14:38:36 +0900
Subject: watchdog: dw_wdt: Add __user annotation

Added __user annotation to fix the following sparse warnings.

drivers/watchdog/dw_wdt.c:206:38: warning: incorrect type in argument 1 (different address spaces)
drivers/watchdog/dw_wdt.c:206:38:    expected void [noderef] <asn:1>*to
drivers/watchdog/dw_wdt.c:206:38:    got struct watchdog_info *<noident>
drivers/watchdog/dw_wdt.c:211:24: warning: incorrect type in initializer (different address spaces)
drivers/watchdog/dw_wdt.c:211:24:    expected int const [noderef] <asn:1>*register __p
drivers/watchdog/dw_wdt.c:211:24:    got int *<noident>

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Jamie Iles <jamie@jamieiles.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/dw_wdt.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c
index b922bec45d15..aed1cbe81882 100644
--- a/drivers/watchdog/dw_wdt.c
+++ b/drivers/watchdog/dw_wdt.c
@@ -203,12 +203,12 @@ static long dw_wdt_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 
 	switch (cmd) {
 	case WDIOC_GETSUPPORT:
-		return copy_to_user((struct watchdog_info *)arg, &dw_wdt_ident,
+		return copy_to_user((void __user *)arg, &dw_wdt_ident,
 				    sizeof(dw_wdt_ident)) ? -EFAULT : 0;
 
 	case WDIOC_GETSTATUS:
 	case WDIOC_GETBOOTSTATUS:
-		return put_user(0, (int *)arg);
+		return put_user(0, (int __user *)arg);
 
 	case WDIOC_KEEPALIVE:
 		dw_wdt_set_next_heartbeat();
-- 
cgit 


From b3970bdebbb2901becca7cb82e44b5c5976f0fae Mon Sep 17 00:00:00 2001
From: Jingoo Han <jg1.han@samsung.com>
Date: Thu, 1 Aug 2013 14:39:46 +0900
Subject: watchdog: kempld_wdt: Add __user annotation

Added __user annotation to fix the following sparse warnings.
Also, it makes 'kempld_prescaler' static because it is used
only in this file.

drivers/watchdog/kempld_wdt.c:70:11: warning: symbol 'kempld_prescaler' was not declared. Should it be static?
drivers/watchdog/kempld_wdt.c:364:23: warning: incorrect type in initializer (different address spaces)
drivers/watchdog/kempld_wdt.c:364:23:    expected int const [noderef] <asn:1>*register __p
drivers/watchdog/kempld_wdt.c:364:23:    got int *<noident>

Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/kempld_wdt.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/watchdog/kempld_wdt.c b/drivers/watchdog/kempld_wdt.c
index 5c3d4df63e68..8a8e3eca8aea 100644
--- a/drivers/watchdog/kempld_wdt.c
+++ b/drivers/watchdog/kempld_wdt.c
@@ -67,7 +67,7 @@ enum {
 	PRESCALER_12,
 };
 
-const u32 kempld_prescaler[] = {
+static const u32 kempld_prescaler[] = {
 	[PRESCALER_21] = (1 << 21) - 1,
 	[PRESCALER_17] = (1 << 17) - 1,
 	[PRESCALER_12] = (1 << 12) - 1,
@@ -361,7 +361,7 @@ static long kempld_wdt_ioctl(struct watchdog_device *wdd, unsigned int cmd,
 		ret = kempld_wdt_keepalive(wdd);
 		break;
 	case WDIOC_GETPRETIMEOUT:
-		ret = put_user(wdt_data->pretimeout, (int *)arg);
+		ret = put_user(wdt_data->pretimeout, (int __user *)arg);
 		break;
 	}
 
-- 
cgit 


From e14538e0db8d880291064348bda7d52ec8322675 Mon Sep 17 00:00:00 2001
From: Jonas Jensen <jonas.jensen@gmail.com>
Date: Fri, 2 Aug 2013 16:40:45 +0200
Subject: watchdog: Add MOXA ART watchdog driver

This patch adds a watchdog driver for the main hardware watchdog timer
found on MOXA ART SoCs.

The MOXA ART SoC provides one writable timer register, restarting
the hardware once it reaches zero. The register is auto decremented
every APB clock cycle.

Signed-off-by: Jonas Jensen <jonas.jensen@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 .../bindings/watchdog/moxa,moxart-watchdog.txt     |  15 ++
 drivers/watchdog/Kconfig                           |  10 ++
 drivers/watchdog/Makefile                          |   1 +
 drivers/watchdog/moxart_wdt.c                      | 165 +++++++++++++++++++++
 4 files changed, 191 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/watchdog/moxa,moxart-watchdog.txt
 create mode 100644 drivers/watchdog/moxart_wdt.c

diff --git a/Documentation/devicetree/bindings/watchdog/moxa,moxart-watchdog.txt b/Documentation/devicetree/bindings/watchdog/moxa,moxart-watchdog.txt
new file mode 100644
index 000000000000..1169857d1d12
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/moxa,moxart-watchdog.txt
@@ -0,0 +1,15 @@
+MOXA ART Watchdog timer
+
+Required properties:
+
+- compatible : Must be "moxa,moxart-watchdog"
+- reg : Should contain registers location and length
+- clocks : Should contain phandle for the clock that drives the counter
+
+Example:
+
+	watchdog: watchdog@98500000 {
+		compatible = "moxa,moxart-watchdog";
+		reg = <0x98500000 0x10>;
+		clocks = <&coreclk>;
+	};
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 6df632e0bb55..7fc6e101923a 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -392,6 +392,16 @@ config RETU_WATCHDOG
 	  To compile this driver as a module, choose M here: the
 	  module will be called retu_wdt.
 
+config MOXART_WDT
+	tristate "MOXART watchdog"
+	depends on ARCH_MOXART
+	help
+	  Say Y here to include Watchdog timer support for the watchdog
+	  existing on the MOXA ART SoC series platforms.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called moxart_wdt.
+
 # AVR32 Architecture
 
 config AT32AP700X_WDT
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index 8c7b8bcbbdc5..40c36ccdd0d4 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -55,6 +55,7 @@ obj-$(CONFIG_IMX2_WDT) += imx2_wdt.o
 obj-$(CONFIG_UX500_WATCHDOG) += ux500_wdt.o
 obj-$(CONFIG_RETU_WATCHDOG) += retu_wdt.o
 obj-$(CONFIG_BCM2835_WDT) += bcm2835_wdt.o
+obj-$(CONFIG_MOXART_WDT) += moxart_wdt.o
 
 # AVR32 Architecture
 obj-$(CONFIG_AT32AP700X_WDT) += at32ap700x_wdt.o
diff --git a/drivers/watchdog/moxart_wdt.c b/drivers/watchdog/moxart_wdt.c
new file mode 100644
index 000000000000..4166e4d116a8
--- /dev/null
+++ b/drivers/watchdog/moxart_wdt.c
@@ -0,0 +1,165 @@
+/*
+ * MOXA ART SoCs watchdog driver.
+ *
+ * Copyright (C) 2013 Jonas Jensen
+ *
+ * Jonas Jensen <jonas.jensen@gmail.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/module.h>
+#include <linux/err.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/watchdog.h>
+#include <linux/moduleparam.h>
+
+#define REG_COUNT			0x4
+#define REG_MODE			0x8
+#define REG_ENABLE			0xC
+
+struct moxart_wdt_dev {
+	struct watchdog_device dev;
+	void __iomem *base;
+	unsigned int clock_frequency;
+};
+
+static int heartbeat;
+
+static int moxart_wdt_stop(struct watchdog_device *wdt_dev)
+{
+	struct moxart_wdt_dev *moxart_wdt = watchdog_get_drvdata(wdt_dev);
+
+	writel(0, moxart_wdt->base + REG_ENABLE);
+
+	return 0;
+}
+
+static int moxart_wdt_start(struct watchdog_device *wdt_dev)
+{
+	struct moxart_wdt_dev *moxart_wdt = watchdog_get_drvdata(wdt_dev);
+
+	writel(moxart_wdt->clock_frequency * wdt_dev->timeout,
+	       moxart_wdt->base + REG_COUNT);
+	writel(0x5ab9, moxart_wdt->base + REG_MODE);
+	writel(0x03, moxart_wdt->base + REG_ENABLE);
+
+	return 0;
+}
+
+static int moxart_wdt_set_timeout(struct watchdog_device *wdt_dev,
+				  unsigned int timeout)
+{
+	wdt_dev->timeout = timeout;
+
+	return 0;
+}
+
+static const struct watchdog_info moxart_wdt_info = {
+	.identity       = "moxart-wdt",
+	.options        = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING |
+			  WDIOF_MAGICCLOSE,
+};
+
+static const struct watchdog_ops moxart_wdt_ops = {
+	.owner          = THIS_MODULE,
+	.start          = moxart_wdt_start,
+	.stop           = moxart_wdt_stop,
+	.set_timeout    = moxart_wdt_set_timeout,
+};
+
+static int moxart_wdt_probe(struct platform_device *pdev)
+{
+	struct moxart_wdt_dev *moxart_wdt;
+	struct device *dev = &pdev->dev;
+	struct device_node *node = dev->of_node;
+	struct resource *res;
+	struct clk *clk;
+	int err;
+	unsigned int max_timeout;
+	bool nowayout = WATCHDOG_NOWAYOUT;
+
+	moxart_wdt = devm_kzalloc(dev, sizeof(*moxart_wdt), GFP_KERNEL);
+	if (!moxart_wdt)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, moxart_wdt);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	moxart_wdt->base = devm_ioremap_resource(dev, res);
+	if (IS_ERR(moxart_wdt->base))
+		return PTR_ERR(moxart_wdt->base);
+
+	clk = of_clk_get(node, 0);
+	if (IS_ERR(clk)) {
+		pr_err("%s: of_clk_get failed\n", __func__);
+		return PTR_ERR(clk);
+	}
+
+	moxart_wdt->clock_frequency = clk_get_rate(clk);
+	if (moxart_wdt->clock_frequency == 0) {
+		pr_err("%s: incorrect clock frequency\n", __func__);
+		return -EINVAL;
+	}
+
+	max_timeout = UINT_MAX / moxart_wdt->clock_frequency;
+
+	moxart_wdt->dev.info = &moxart_wdt_info;
+	moxart_wdt->dev.ops = &moxart_wdt_ops;
+	moxart_wdt->dev.timeout = max_timeout;
+	moxart_wdt->dev.min_timeout = 1;
+	moxart_wdt->dev.max_timeout = max_timeout;
+	moxart_wdt->dev.parent = dev;
+
+	watchdog_init_timeout(&moxart_wdt->dev, heartbeat, dev);
+	watchdog_set_nowayout(&moxart_wdt->dev, nowayout);
+
+	watchdog_set_drvdata(&moxart_wdt->dev, moxart_wdt);
+
+	err = watchdog_register_device(&moxart_wdt->dev);
+	if (err)
+		return err;
+
+	dev_dbg(dev, "Watchdog enabled (heartbeat=%d sec, nowayout=%d)\n",
+		moxart_wdt->dev.timeout, nowayout);
+
+	return 0;
+}
+
+static int moxart_wdt_remove(struct platform_device *pdev)
+{
+	struct moxart_wdt_dev *moxart_wdt = platform_get_drvdata(pdev);
+
+	moxart_wdt_stop(&moxart_wdt->dev);
+	watchdog_unregister_device(&moxart_wdt->dev);
+
+	return 0;
+}
+
+static const struct of_device_id moxart_watchdog_match[] = {
+	{ .compatible = "moxa,moxart-watchdog" },
+	{ },
+};
+
+static struct platform_driver moxart_wdt_driver = {
+	.probe      = moxart_wdt_probe,
+	.remove     = moxart_wdt_remove,
+	.driver     = {
+		.name		= "moxart-watchdog",
+		.owner		= THIS_MODULE,
+		.of_match_table	= moxart_watchdog_match,
+	},
+};
+module_platform_driver(moxart_wdt_driver);
+
+module_param(heartbeat, int, 0);
+MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds");
+
+MODULE_DESCRIPTION("MOXART watchdog driver");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Jonas Jensen <jonas.jensen@gmail.com>");
-- 
cgit 


From 473cf939ff3442dc86d531f3bb152a2f129ea9d1 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Thu, 8 Aug 2013 11:31:43 +0200
Subject: watchdog: add ralink watchdog driver

Add a driver for the watchdog timer found on Ralink SoC

Signed-off-by: John Crispin <blogic@openwrt.org>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: linux-watchdog@vger.kernel.org
Cc: linux-mips@linux-mips.org
Cc: devicetree-discuss@lists.ozlabs.org
---
 .../devicetree/bindings/watchdog/rt2880-wdt.txt    |  19 ++
 drivers/watchdog/Kconfig                           |   7 +
 drivers/watchdog/Makefile                          |   1 +
 drivers/watchdog/rt2880_wdt.c                      | 208 +++++++++++++++++++++
 4 files changed, 235 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/watchdog/rt2880-wdt.txt
 create mode 100644 drivers/watchdog/rt2880_wdt.c

diff --git a/Documentation/devicetree/bindings/watchdog/rt2880-wdt.txt b/Documentation/devicetree/bindings/watchdog/rt2880-wdt.txt
new file mode 100644
index 000000000000..d7bab3db9d1f
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/rt2880-wdt.txt
@@ -0,0 +1,19 @@
+Ralink Watchdog Timers
+
+Required properties:
+- compatible: must be "ralink,rt2880-wdt"
+- reg: physical base address of the controller and length of the register range
+
+Optional properties:
+- interrupt-parent: phandle to the INTC device node
+- interrupts: Specify the INTC interrupt number
+
+Example:
+
+	watchdog@120 {
+		compatible = "ralink,rt2880-wdt";
+		reg = <0x120 0x10>;
+
+		interrupt-parent = <&intc>;
+		interrupts = <1>;
+	};
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 7fc6e101923a..4327b48a35a3 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -1135,6 +1135,13 @@ config LANTIQ_WDT
 	help
 	  Hardware driver for the Lantiq SoC Watchdog Timer.
 
+config RALINK_WDT
+	tristate "Ralink SoC watchdog"
+	select WATCHDOG_CORE
+	depends on RALINK
+	help
+	  Hardware driver for the Ralink SoC Watchdog Timer.
+
 # PARISC Architecture
 
 # POWERPC Architecture
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index 40c36ccdd0d4..89fd3288cd7b 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -135,6 +135,7 @@ obj-$(CONFIG_TXX9_WDT) += txx9wdt.o
 obj-$(CONFIG_OCTEON_WDT) += octeon-wdt.o
 octeon-wdt-y := octeon-wdt-main.o octeon-wdt-nmi.o
 obj-$(CONFIG_LANTIQ_WDT) += lantiq_wdt.o
+obj-$(CONFIG_RALINK_WDT) += rt2880_wdt.o
 
 # PARISC Architecture
 
diff --git a/drivers/watchdog/rt2880_wdt.c b/drivers/watchdog/rt2880_wdt.c
new file mode 100644
index 000000000000..4d07964aeae3
--- /dev/null
+++ b/drivers/watchdog/rt2880_wdt.c
@@ -0,0 +1,208 @@
+/*
+ * Ralink RT288x/RT3xxx/MT76xx built-in hardware watchdog timer
+ *
+ * Copyright (C) 2011 Gabor Juhos <juhosg@openwrt.org>
+ * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
+ *
+ * This driver was based on: drivers/watchdog/softdog.c
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/reset.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/watchdog.h>
+#include <linux/miscdevice.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+
+#include <asm/mach-ralink/ralink_regs.h>
+
+#define SYSC_RSTSTAT			0x38
+#define WDT_RST_CAUSE			BIT(1)
+
+#define RALINK_WDT_TIMEOUT		30
+#define RALINK_WDT_PRESCALE		65536
+
+#define TIMER_REG_TMR1LOAD		0x00
+#define TIMER_REG_TMR1CTL		0x08
+
+#define TMRSTAT_TMR1RST			BIT(5)
+
+#define TMR1CTL_ENABLE			BIT(7)
+#define TMR1CTL_MODE_SHIFT		4
+#define TMR1CTL_MODE_MASK		0x3
+#define TMR1CTL_MODE_FREE_RUNNING	0x0
+#define TMR1CTL_MODE_PERIODIC		0x1
+#define TMR1CTL_MODE_TIMEOUT		0x2
+#define TMR1CTL_MODE_WDT		0x3
+#define TMR1CTL_PRESCALE_MASK		0xf
+#define TMR1CTL_PRESCALE_65536		0xf
+
+static struct clk *rt288x_wdt_clk;
+static unsigned long rt288x_wdt_freq;
+static void __iomem *rt288x_wdt_base;
+
+static bool nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, bool, 0);
+MODULE_PARM_DESC(nowayout,
+		"Watchdog cannot be stopped once started (default="
+		__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+static inline void rt_wdt_w32(unsigned reg, u32 val)
+{
+	iowrite32(val, rt288x_wdt_base + reg);
+}
+
+static inline u32 rt_wdt_r32(unsigned reg)
+{
+	return ioread32(rt288x_wdt_base + reg);
+}
+
+static int rt288x_wdt_ping(struct watchdog_device *w)
+{
+	rt_wdt_w32(TIMER_REG_TMR1LOAD, w->timeout * rt288x_wdt_freq);
+
+	return 0;
+}
+
+static int rt288x_wdt_start(struct watchdog_device *w)
+{
+	u32 t;
+
+	t = rt_wdt_r32(TIMER_REG_TMR1CTL);
+	t &= ~(TMR1CTL_MODE_MASK << TMR1CTL_MODE_SHIFT |
+		TMR1CTL_PRESCALE_MASK);
+	t |= (TMR1CTL_MODE_WDT << TMR1CTL_MODE_SHIFT |
+		TMR1CTL_PRESCALE_65536);
+	rt_wdt_w32(TIMER_REG_TMR1CTL, t);
+
+	rt288x_wdt_ping(w);
+
+	t = rt_wdt_r32(TIMER_REG_TMR1CTL);
+	t |= TMR1CTL_ENABLE;
+	rt_wdt_w32(TIMER_REG_TMR1CTL, t);
+
+	return 0;
+}
+
+static int rt288x_wdt_stop(struct watchdog_device *w)
+{
+	u32 t;
+
+	rt288x_wdt_ping(w);
+
+	t = rt_wdt_r32(TIMER_REG_TMR1CTL);
+	t &= ~TMR1CTL_ENABLE;
+	rt_wdt_w32(TIMER_REG_TMR1CTL, t);
+
+	return 0;
+}
+
+static int rt288x_wdt_set_timeout(struct watchdog_device *w, unsigned int t)
+{
+	w->timeout = t;
+	rt288x_wdt_ping(w);
+
+	return 0;
+}
+
+static int rt288x_wdt_bootcause(void)
+{
+	if (rt_sysc_r32(SYSC_RSTSTAT) & WDT_RST_CAUSE)
+		return WDIOF_CARDRESET;
+
+	return 0;
+}
+
+static struct watchdog_info rt288x_wdt_info = {
+	.identity = "Ralink Watchdog",
+	.options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
+};
+
+static struct watchdog_ops rt288x_wdt_ops = {
+	.owner = THIS_MODULE,
+	.start = rt288x_wdt_start,
+	.stop = rt288x_wdt_stop,
+	.ping = rt288x_wdt_ping,
+	.set_timeout = rt288x_wdt_set_timeout,
+};
+
+static struct watchdog_device rt288x_wdt_dev = {
+	.info = &rt288x_wdt_info,
+	.ops = &rt288x_wdt_ops,
+	.min_timeout = 1,
+};
+
+static int rt288x_wdt_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	int ret;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	rt288x_wdt_base = devm_request_and_ioremap(&pdev->dev, res);
+	if (IS_ERR(rt288x_wdt_base))
+		return PTR_ERR(rt288x_wdt_base);
+
+	rt288x_wdt_clk = devm_clk_get(&pdev->dev, NULL);
+	if (IS_ERR(rt288x_wdt_clk))
+		return PTR_ERR(rt288x_wdt_clk);
+
+	device_reset(&pdev->dev);
+
+	rt288x_wdt_freq = clk_get_rate(rt288x_wdt_clk) / RALINK_WDT_PRESCALE;
+
+	rt288x_wdt_dev.dev = &pdev->dev;
+	rt288x_wdt_dev.bootstatus = rt288x_wdt_bootcause();
+
+	rt288x_wdt_dev.max_timeout = (0xfffful / rt288x_wdt_freq);
+	rt288x_wdt_dev.timeout = rt288x_wdt_dev.max_timeout;
+
+	watchdog_set_nowayout(&rt288x_wdt_dev, nowayout);
+
+	ret = watchdog_register_device(&rt288x_wdt_dev);
+	if (!ret)
+		dev_info(&pdev->dev, "Initialized\n");
+
+	return 0;
+}
+
+static int rt288x_wdt_remove(struct platform_device *pdev)
+{
+	watchdog_unregister_device(&rt288x_wdt_dev);
+
+	return 0;
+}
+
+static void rt288x_wdt_shutdown(struct platform_device *pdev)
+{
+	rt288x_wdt_stop(&rt288x_wdt_dev);
+}
+
+static const struct of_device_id rt288x_wdt_match[] = {
+	{ .compatible = "ralink,rt2880-wdt" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, rt288x_wdt_match);
+
+static struct platform_driver rt288x_wdt_driver = {
+	.probe		= rt288x_wdt_probe,
+	.remove		= rt288x_wdt_remove,
+	.shutdown	= rt288x_wdt_shutdown,
+	.driver		= {
+		.name		= KBUILD_MODNAME,
+		.owner		= THIS_MODULE,
+		.of_match_table	= rt288x_wdt_match,
+	},
+};
+
+module_platform_driver(rt288x_wdt_driver);
+
+MODULE_DESCRIPTION("MediaTek/Ralink RT288x/RT3xxx hardware watchdog driver");
+MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-- 
cgit 


From cfff96e69f05176afd0e58d3a8c853a6d68ce544 Mon Sep 17 00:00:00 2001
From: Johannes Thumshirn <johannes.thumshirn@men.de>
Date: Wed, 21 Aug 2013 14:42:09 +0200
Subject: documentation/devicetree: Move DT bindings from gpio to watchdog

I accidently put the devicetree bindings for the MEN A21 watchdog driver in
Documentation/devicetree/bindings/gpio instead of
Documentation/devicetree/bindings/watchdog, this patch addresses this error.

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@men.de>
Acked-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Rob Landley <rob@landley.net>
---
 .../devicetree/bindings/gpio/men-a021-wdt.txt      | 25 ----------------------
 .../devicetree/bindings/watchdog/men-a021-wdt.txt  | 25 ++++++++++++++++++++++
 2 files changed, 25 insertions(+), 25 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/gpio/men-a021-wdt.txt
 create mode 100644 Documentation/devicetree/bindings/watchdog/men-a021-wdt.txt

diff --git a/Documentation/devicetree/bindings/gpio/men-a021-wdt.txt b/Documentation/devicetree/bindings/gpio/men-a021-wdt.txt
deleted file mode 100644
index 370dee3226d9..000000000000
--- a/Documentation/devicetree/bindings/gpio/men-a021-wdt.txt
+++ /dev/null
@@ -1,25 +0,0 @@
-Bindings for MEN A21 Watchdog device connected to GPIO lines
-
-Required properties:
-- compatible: "men,a021-wdt"
-- gpios: Specifies the pins that control the Watchdog, order:
-  1: Watchdog enable
-  2: Watchdog fast-mode
-  3: Watchdog trigger
-  4: Watchdog reset cause bit 0
-  5: Watchdog reset cause bit 1
-  6: Watchdog reset cause bit 2
-
-Optional properties:
-- None
-
-Example:
-	watchdog {
-		compatible ="men,a021-wdt";
-		gpios = <&gpio3 9  1	/* WD_EN */
-			 &gpio3 10 1	/* WD_FAST */
-			 &gpio3 11 1	/* WD_TRIG */
-			 &gpio3 6  1	/* RST_CAUSE[0] */
-			 &gpio3 7  1	/* RST_CAUSE[1] */
-			 &gpio3 8  1>;	/* RST_CAUSE[2] */
-	};
diff --git a/Documentation/devicetree/bindings/watchdog/men-a021-wdt.txt b/Documentation/devicetree/bindings/watchdog/men-a021-wdt.txt
new file mode 100644
index 000000000000..370dee3226d9
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/men-a021-wdt.txt
@@ -0,0 +1,25 @@
+Bindings for MEN A21 Watchdog device connected to GPIO lines
+
+Required properties:
+- compatible: "men,a021-wdt"
+- gpios: Specifies the pins that control the Watchdog, order:
+  1: Watchdog enable
+  2: Watchdog fast-mode
+  3: Watchdog trigger
+  4: Watchdog reset cause bit 0
+  5: Watchdog reset cause bit 1
+  6: Watchdog reset cause bit 2
+
+Optional properties:
+- None
+
+Example:
+	watchdog {
+		compatible ="men,a021-wdt";
+		gpios = <&gpio3 9  1	/* WD_EN */
+			 &gpio3 10 1	/* WD_FAST */
+			 &gpio3 11 1	/* WD_TRIG */
+			 &gpio3 6  1	/* RST_CAUSE[0] */
+			 &gpio3 7  1	/* RST_CAUSE[1] */
+			 &gpio3 8  1>;	/* RST_CAUSE[2] */
+	};
-- 
cgit 


From a20a99fbb88ac58c2e118e8759967d1cd7355322 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 23 Aug 2013 12:38:32 +0300
Subject: watchdog: ts72xx_wdt: cleanup return codes in ioctl

There seems to be some confusion here which functions return positive
numbers and which return negative error codes.

copy_to_user() returns the number of bytes remaining to be copied but we
want to return -EFAULT.

The rest is just clean up.  get_user() actually returns zero on success
and -EFAULT on error so we can preserve the error code.  The
timeout_to_regval() function returns -EINVAL on failure, but we can
propogate that back instead of hardcoding -EINVAL ourselves.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
--
---
 drivers/watchdog/ts72xx_wdt.c | 36 ++++++++++++++++--------------------
 1 file changed, 16 insertions(+), 20 deletions(-)

diff --git a/drivers/watchdog/ts72xx_wdt.c b/drivers/watchdog/ts72xx_wdt.c
index c9b0c627fe7e..df5dd55b9b3a 100644
--- a/drivers/watchdog/ts72xx_wdt.c
+++ b/drivers/watchdog/ts72xx_wdt.c
@@ -305,7 +305,8 @@ static long ts72xx_wdt_ioctl(struct file *file, unsigned int cmd,
 
 	switch (cmd) {
 	case WDIOC_GETSUPPORT:
-		error = copy_to_user(argp, &winfo, sizeof(winfo));
+		if (copy_to_user(argp, &winfo, sizeof(winfo)))
+			error = -EFAULT;
 		break;
 
 	case WDIOC_GETSTATUS:
@@ -320,10 +321,9 @@ static long ts72xx_wdt_ioctl(struct file *file, unsigned int cmd,
 	case WDIOC_SETOPTIONS: {
 		int options;
 
-		if (get_user(options, p)) {
-			error = -EFAULT;
+		error = get_user(options, p);
+		if (error)
 			break;
-		}
 
 		error = -EINVAL;
 
@@ -341,30 +341,26 @@ static long ts72xx_wdt_ioctl(struct file *file, unsigned int cmd,
 
 	case WDIOC_SETTIMEOUT: {
 		int new_timeout;
+		int regval;
 
-		if (get_user(new_timeout, p)) {
-			error = -EFAULT;
-		} else {
-			int regval;
-
-			regval = timeout_to_regval(new_timeout);
-			if (regval < 0) {
-				error = -EINVAL;
-			} else {
-				ts72xx_wdt_stop(wdt);
-				wdt->regval = regval;
-				ts72xx_wdt_start(wdt);
-			}
-		}
+		error = get_user(new_timeout, p);
 		if (error)
 			break;
 
+		regval = timeout_to_regval(new_timeout);
+		if (regval < 0) {
+			error = regval;
+			break;
+		}
+		ts72xx_wdt_stop(wdt);
+		wdt->regval = regval;
+		ts72xx_wdt_start(wdt);
+
 		/*FALLTHROUGH*/
 	}
 
 	case WDIOC_GETTIMEOUT:
-		if (put_user(regval_to_timeout(wdt->regval), p))
-			error = -EFAULT;
+		error = put_user(regval_to_timeout(wdt->regval), p);
 		break;
 
 	default:
-- 
cgit 


From 85eee81922399ec0be1b2c870f9333b4bca56650 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 30 Sep 2013 10:12:51 +0530
Subject: watchdog: Remove redundant of_match_ptr

of_match_ptr() is a macro used to avoid undefined reference error if
CONFIG_OF is used to selectively compile in or out the
data structure. It is defined as follows:

#ifdef CONFIG_OF
#define of_match_ptr(ptr) ptr
#else
#define of_match_ptr(ptr) NULL
#endif

In the case of this series, none of the drivers use CONFIG_OF macro to
compile out the data structure (i.e., the data structure is always
defined).
Hence the use of of_match_ptr() does not make any sense. Thus removing
it to make the code look simpler for readability.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/at91rm9200_wdt.c | 2 +-
 drivers/watchdog/orion_wdt.c      | 2 +-
 drivers/watchdog/sunxi_wdt.c      | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/watchdog/at91rm9200_wdt.c b/drivers/watchdog/at91rm9200_wdt.c
index 1c75260b987c..aa5cb56cf68a 100644
--- a/drivers/watchdog/at91rm9200_wdt.c
+++ b/drivers/watchdog/at91rm9200_wdt.c
@@ -269,7 +269,7 @@ static struct platform_driver at91wdt_driver = {
 	.driver		= {
 		.name	= "at91_wdt",
 		.owner	= THIS_MODULE,
-		.of_match_table = of_match_ptr(at91_wdt_dt_ids),
+		.of_match_table = at91_wdt_dt_ids,
 	},
 };
 
diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c
index 4ea5fcccac02..34adb540d02c 100644
--- a/drivers/watchdog/orion_wdt.c
+++ b/drivers/watchdog/orion_wdt.c
@@ -207,7 +207,7 @@ static struct platform_driver orion_wdt_driver = {
 	.driver		= {
 		.owner	= THIS_MODULE,
 		.name	= "orion_wdt",
-		.of_match_table = of_match_ptr(orion_wdt_of_match_table),
+		.of_match_table = orion_wdt_of_match_table,
 	},
 };
 
diff --git a/drivers/watchdog/sunxi_wdt.c b/drivers/watchdog/sunxi_wdt.c
index f6caa77151c7..76332d893e12 100644
--- a/drivers/watchdog/sunxi_wdt.c
+++ b/drivers/watchdog/sunxi_wdt.c
@@ -217,7 +217,7 @@ static struct platform_driver sunxi_wdt_driver = {
 	.driver		= {
 		.owner		= THIS_MODULE,
 		.name		= DRV_NAME,
-		.of_match_table	= of_match_ptr(sunxi_wdt_dt_ids)
+		.of_match_table	= sunxi_wdt_dt_ids,
 	},
 };
 
-- 
cgit 


From f0fcbdbf202e2be36c8eb6d1f5c01f95805777de Mon Sep 17 00:00:00 2001
From: Xianglong Du <Xianglong.Du@csr.com>
Date: Wed, 2 Oct 2013 08:13:49 +0800
Subject: watchdog: sirf: add watchdog driver of CSR SiRFprimaII and
 SiRFatlasVI

On CSR SiRFprimaII and SiRFatlasVI, the 6th timer can act as a watchdog
timer when the Watchdog mode is enabled.

watchdog occur when TIMER watchdog counter matches the value software
pre-set, when this event occurs, the effect is the same as the system
software reset.

Signed-off-by: Xianglong Du <Xianglong.Du@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Cc: Romain Izard <romain.izard.pro@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 .../devicetree/bindings/watchdog/sirfsoc_wdt.txt   |  14 ++
 arch/arm/configs/prima2_defconfig                  |   1 +
 drivers/watchdog/Kconfig                           |   9 +
 drivers/watchdog/Makefile                          |   1 +
 drivers/watchdog/sirfsoc_wdt.c                     | 224 +++++++++++++++++++++
 5 files changed, 249 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/watchdog/sirfsoc_wdt.txt
 create mode 100644 drivers/watchdog/sirfsoc_wdt.c

diff --git a/Documentation/devicetree/bindings/watchdog/sirfsoc_wdt.txt b/Documentation/devicetree/bindings/watchdog/sirfsoc_wdt.txt
new file mode 100644
index 000000000000..9cbc76c89b2b
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/sirfsoc_wdt.txt
@@ -0,0 +1,14 @@
+SiRFSoC Timer and Watchdog Timer(WDT) Controller
+
+Required properties:
+- compatible: "sirf,prima2-tick"
+- reg: Address range of tick timer/WDT register set
+- interrupts: interrupt number to the cpu
+
+Example:
+
+timer@b0020000 {
+	compatible = "sirf,prima2-tick";
+	reg = <0xb0020000 0x1000>;
+	interrupts = <0>;
+};
diff --git a/arch/arm/configs/prima2_defconfig b/arch/arm/configs/prima2_defconfig
index 002a1ceadceb..23591dba47a0 100644
--- a/arch/arm/configs/prima2_defconfig
+++ b/arch/arm/configs/prima2_defconfig
@@ -39,6 +39,7 @@ CONFIG_SPI=y
 CONFIG_SPI_SIRF=y
 CONFIG_SPI_SPIDEV=y
 # CONFIG_HWMON is not set
+CONFIG_WATCHDOG=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_MASS_STORAGE=m
 CONFIG_MMC=y
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 4327b48a35a3..74f29a2fc51c 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -402,6 +402,15 @@ config MOXART_WDT
 	  To compile this driver as a module, choose M here: the
 	  module will be called moxart_wdt.
 
+config SIRFSOC_WATCHDOG
+	tristate "SiRFSOC watchdog"
+	depends on ARCH_SIRF
+	select WATCHDOG_CORE
+	default y
+	help
+	  Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
+	  the watchdog triggers the system will be reset.
+
 # AVR32 Architecture
 
 config AT32AP700X_WDT
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index 89fd3288cd7b..91bd95a64baf 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -56,6 +56,7 @@ obj-$(CONFIG_UX500_WATCHDOG) += ux500_wdt.o
 obj-$(CONFIG_RETU_WATCHDOG) += retu_wdt.o
 obj-$(CONFIG_BCM2835_WDT) += bcm2835_wdt.o
 obj-$(CONFIG_MOXART_WDT) += moxart_wdt.o
+obj-$(CONFIG_SIRFSOC_WATCHDOG) += sirfsoc_wdt.o
 
 # AVR32 Architecture
 obj-$(CONFIG_AT32AP700X_WDT) += at32ap700x_wdt.o
diff --git a/drivers/watchdog/sirfsoc_wdt.c b/drivers/watchdog/sirfsoc_wdt.c
new file mode 100644
index 000000000000..3b8d7397e001
--- /dev/null
+++ b/drivers/watchdog/sirfsoc_wdt.c
@@ -0,0 +1,224 @@
+/*
+ * Watchdog driver for CSR SiRFprimaII and SiRFatlasVI
+ *
+ * Copyright (c) 2013 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#include <linux/module.h>
+#include <linux/watchdog.h>
+#include <linux/platform_device.h>
+#include <linux/moduleparam.h>
+#include <linux/of.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+
+#define SIRFSOC_TIMER_COUNTER_LO	0x0000
+#define SIRFSOC_TIMER_MATCH_0		0x0008
+#define SIRFSOC_TIMER_INT_EN		0x0024
+#define SIRFSOC_TIMER_WATCHDOG_EN	0x0028
+#define SIRFSOC_TIMER_LATCH		0x0030
+#define SIRFSOC_TIMER_LATCHED_LO	0x0034
+
+#define SIRFSOC_TIMER_WDT_INDEX		5
+
+#define SIRFSOC_WDT_MIN_TIMEOUT		30		/* 30 secs */
+#define SIRFSOC_WDT_MAX_TIMEOUT		(10 * 60)	/* 10 mins */
+#define SIRFSOC_WDT_DEFAULT_TIMEOUT	30		/* 30 secs */
+
+static unsigned int timeout = SIRFSOC_WDT_DEFAULT_TIMEOUT;
+static bool nowayout = WATCHDOG_NOWAYOUT;
+
+module_param(timeout, uint, 0);
+module_param(nowayout, bool, 0);
+
+MODULE_PARM_DESC(timeout, "Default watchdog timeout (in seconds)");
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
+			__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+static unsigned int sirfsoc_wdt_gettimeleft(struct watchdog_device *wdd)
+{
+	u32 counter, match;
+	void __iomem *wdt_base;
+	int time_left;
+
+	wdt_base = watchdog_get_drvdata(wdd);
+	counter = readl(wdt_base + SIRFSOC_TIMER_COUNTER_LO);
+	match = readl(wdt_base +
+		SIRFSOC_TIMER_MATCH_0 + (SIRFSOC_TIMER_WDT_INDEX << 2));
+
+	time_left = match - counter;
+
+	return time_left / CLOCK_TICK_RATE;
+}
+
+static int sirfsoc_wdt_updatetimeout(struct watchdog_device *wdd)
+{
+	u32 counter, timeout_ticks;
+	void __iomem *wdt_base;
+
+	timeout_ticks = wdd->timeout * CLOCK_TICK_RATE;
+	wdt_base = watchdog_get_drvdata(wdd);
+
+	/* Enable the latch before reading the LATCH_LO register */
+	writel(1, wdt_base + SIRFSOC_TIMER_LATCH);
+
+	/* Set the TO value */
+	counter = readl(wdt_base + SIRFSOC_TIMER_LATCHED_LO);
+
+	counter += timeout_ticks;
+
+	writel(counter, wdt_base +
+		SIRFSOC_TIMER_MATCH_0 + (SIRFSOC_TIMER_WDT_INDEX << 2));
+
+	return 0;
+}
+
+static int sirfsoc_wdt_enable(struct watchdog_device *wdd)
+{
+	void __iomem *wdt_base = watchdog_get_drvdata(wdd);
+	sirfsoc_wdt_updatetimeout(wdd);
+
+	/*
+	 * NOTE: If interrupt is not enabled
+	 * then WD-Reset doesn't get generated at all.
+	 */
+	writel(readl(wdt_base + SIRFSOC_TIMER_INT_EN)
+		| (1 << SIRFSOC_TIMER_WDT_INDEX),
+		wdt_base + SIRFSOC_TIMER_INT_EN);
+	writel(1, wdt_base + SIRFSOC_TIMER_WATCHDOG_EN);
+
+	return 0;
+}
+
+static int sirfsoc_wdt_disable(struct watchdog_device *wdd)
+{
+	void __iomem *wdt_base = watchdog_get_drvdata(wdd);
+
+	writel(0, wdt_base + SIRFSOC_TIMER_WATCHDOG_EN);
+	writel(readl(wdt_base + SIRFSOC_TIMER_INT_EN)
+		& (~(1 << SIRFSOC_TIMER_WDT_INDEX)),
+		wdt_base + SIRFSOC_TIMER_INT_EN);
+
+	return 0;
+}
+
+static int sirfsoc_wdt_settimeout(struct watchdog_device *wdd, unsigned int to)
+{
+	wdd->timeout = to;
+	sirfsoc_wdt_updatetimeout(wdd);
+
+	return 0;
+}
+
+#define OPTIONS (WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE)
+
+static const struct watchdog_info sirfsoc_wdt_ident = {
+	.options          =     OPTIONS,
+	.firmware_version =	0,
+	.identity         =	"SiRFSOC Watchdog",
+};
+
+static struct watchdog_ops sirfsoc_wdt_ops = {
+	.owner = THIS_MODULE,
+	.start = sirfsoc_wdt_enable,
+	.stop = sirfsoc_wdt_disable,
+	.get_timeleft = sirfsoc_wdt_gettimeleft,
+	.ping = sirfsoc_wdt_updatetimeout,
+	.set_timeout = sirfsoc_wdt_settimeout,
+};
+
+static struct watchdog_device sirfsoc_wdd = {
+	.info = &sirfsoc_wdt_ident,
+	.ops = &sirfsoc_wdt_ops,
+	.timeout = SIRFSOC_WDT_DEFAULT_TIMEOUT,
+	.min_timeout = SIRFSOC_WDT_MIN_TIMEOUT,
+	.max_timeout = SIRFSOC_WDT_MAX_TIMEOUT,
+};
+
+static int sirfsoc_wdt_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	int ret;
+	void __iomem *base;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	watchdog_set_drvdata(&sirfsoc_wdd, base);
+
+	watchdog_init_timeout(&sirfsoc_wdd, timeout, &pdev->dev);
+	watchdog_set_nowayout(&sirfsoc_wdd, nowayout);
+
+	ret = watchdog_register_device(&sirfsoc_wdd);
+	if (ret)
+		return ret;
+
+	platform_set_drvdata(pdev, &sirfsoc_wdd);
+
+	return 0;
+}
+
+static void sirfsoc_wdt_shutdown(struct platform_device *pdev)
+{
+	struct watchdog_device *wdd = platform_get_drvdata(pdev);
+
+	sirfsoc_wdt_disable(wdd);
+}
+
+static int sirfsoc_wdt_remove(struct platform_device *pdev)
+{
+	sirfsoc_wdt_shutdown(pdev);
+	return 0;
+}
+
+#ifdef	CONFIG_PM_SLEEP
+static int sirfsoc_wdt_suspend(struct device *dev)
+{
+	return 0;
+}
+
+static int sirfsoc_wdt_resume(struct device *dev)
+{
+	struct watchdog_device *wdd = dev_get_drvdata(dev);
+
+	/*
+	 * NOTE: Since timer controller registers settings are saved
+	 * and restored back by the timer-prima2.c, so we need not
+	 * update WD settings except refreshing timeout.
+	 */
+	sirfsoc_wdt_updatetimeout(wdd);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(sirfsoc_wdt_pm_ops,
+		sirfsoc_wdt_suspend, sirfsoc_wdt_resume);
+
+static const struct of_device_id sirfsoc_wdt_of_match[] = {
+	{ .compatible = "sirf,prima2-tick"},
+	{},
+};
+MODULE_DEVICE_TABLE(of, sirfsoc_wdt_of_match);
+
+static struct platform_driver sirfsoc_wdt_driver = {
+	.driver = {
+		.name = "sirfsoc-wdt",
+		.owner = THIS_MODULE,
+		.pm = &sirfsoc_wdt_pm_ops,
+		.of_match_table	= of_match_ptr(sirfsoc_wdt_of_match),
+	},
+	.probe = sirfsoc_wdt_probe,
+	.remove = sirfsoc_wdt_remove,
+	.shutdown = sirfsoc_wdt_shutdown,
+};
+module_platform_driver(sirfsoc_wdt_driver);
+
+MODULE_DESCRIPTION("SiRF SoC watchdog driver");
+MODULE_AUTHOR("Xianglong Du <Xianglong.Du@csr.com>");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:sirfsoc-wdt");
-- 
cgit 


From b1f9cd3225ae2e8626fe7503ae7be92240873049 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Thu, 3 Oct 2013 11:46:30 +0200
Subject: watchdog: sp805_wdt: Remove unnecessary amba_set_drvdata()

Driver core clears the driver data to NULL after device_release
or on probe failure, so just remove it from here.

Driver core change:
"device-core: Ensure drvdata = NULL when no driver is bound"
(sha1: 0998d0631001288a5974afc0b2a5f568bcdecb4d)

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/sp805_wdt.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/watchdog/sp805_wdt.c b/drivers/watchdog/sp805_wdt.c
index 58df98aec122..3f786ce0a6f2 100644
--- a/drivers/watchdog/sp805_wdt.c
+++ b/drivers/watchdog/sp805_wdt.c
@@ -268,7 +268,6 @@ static int sp805_wdt_remove(struct amba_device *adev)
 	struct sp805_wdt *wdt = amba_get_drvdata(adev);
 
 	watchdog_unregister_device(&wdt->wdd);
-	amba_set_drvdata(adev, NULL);
 	watchdog_set_drvdata(&wdt->wdd, NULL);
 
 	return 0;
-- 
cgit 


From 5412df0bda90a2bdcef2771849ad5472b9ef8100 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Mon, 14 Oct 2013 09:29:34 -0700
Subject: watchdog: pcwd_usb: Use allocated buffer for usb_control_msg

usb_control_msg() must use a dma-capable buffer.

This fixes the following error reported by smatch:

drivers/watchdog/pcwd_usb.c:257 usb_pcwd_send_command() error: doing dma on the
stack (buf)

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/pcwd_usb.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/watchdog/pcwd_usb.c b/drivers/watchdog/pcwd_usb.c
index 7b14d1847927..115a0ebebf4a 100644
--- a/drivers/watchdog/pcwd_usb.c
+++ b/drivers/watchdog/pcwd_usb.c
@@ -235,13 +235,17 @@ static int usb_pcwd_send_command(struct usb_pcwd_private *usb_pcwd,
 		unsigned char cmd, unsigned char *msb, unsigned char *lsb)
 {
 	int got_response, count;
-	unsigned char buf[6];
+	unsigned char *buf;
 
 	/* We will not send any commands if the USB PCWD device does
 	 * not exist */
 	if ((!usb_pcwd) || (!usb_pcwd->exists))
 		return -1;
 
+	buf = kmalloc(6, GFP_KERNEL);
+	if (buf == NULL)
+		return 0;
+
 	/* The USB PC Watchdog uses a 6 byte report format.
 	 * The board currently uses only 3 of the six bytes of the report. */
 	buf[0] = cmd;			/* Byte 0 = CMD */
@@ -277,6 +281,8 @@ static int usb_pcwd_send_command(struct usb_pcwd_private *usb_pcwd,
 		*lsb = usb_pcwd->cmd_data_lsb;
 	}
 
+	kfree(buf);
+
 	return got_response;
 }
 
-- 
cgit 


From 67b9fbdf3602dfd525371d7b1f49346f1d11d37d Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Mon, 14 Oct 2013 09:32:48 -0700
Subject: watchdog: ts72xx_wdt: Propagate return value from timeout_to_regval

timeout_to_regval() returns a valid error code. Might as well use it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/ts72xx_wdt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/watchdog/ts72xx_wdt.c b/drivers/watchdog/ts72xx_wdt.c
index df5dd55b9b3a..09d4831aa61f 100644
--- a/drivers/watchdog/ts72xx_wdt.c
+++ b/drivers/watchdog/ts72xx_wdt.c
@@ -192,7 +192,7 @@ static int ts72xx_wdt_open(struct inode *inode, struct file *file)
 		dev_err(&wdt->pdev->dev,
 			"failed to convert timeout (%d) to register value\n",
 			timeout);
-		return -EINVAL;
+		return regval;
 	}
 
 	if (mutex_lock_interruptible(&wdt->lock))
-- 
cgit 


From 487722cf2d66126338217896642bd5eec832c34b Mon Sep 17 00:00:00 2001
From: Jean Delvare <jdelvare@suse.de>
Date: Mon, 21 Oct 2013 17:38:49 +0200
Subject: watchdog: Get rid of MODULE_ALIAS_MISCDEV statements

I just can't find any value in MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR)
and MODULE_ALIAS_MISCDEV(TEMP_MINOR) statements.

Either the device is enumerated and the driver already has a module
alias (e.g. PCI, USB etc.) that will get the right driver loaded
automatically.

Or the device is not enumerated and loading its driver will lead to
more or less intrusive hardware poking. Such hardware poking should be
limited to a bare minimum, so the user should really decide which
drivers should be tried and in what order. Trying them all in
arbitrary order can't do any good.

On top of that, loading that many drivers at once bloats the kernel
log. Also many drivers will stay loaded afterward, bloating the output
of "lsmod" and wasting memory. Some modules (cs5535_mfgpt which gets
loaded as a dependency) can't even be unloaded!

If defining char-major-10-130 is needed then it should happen in
user-space.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Mike Frysinger <vapier.adi@gmail.com>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Zwane Mwaikambo <zwane@arm.linux.org.uk>
Cc: Jim Cromie <jim.cromie@gmail.com>
---
 drivers/watchdog/acquirewdt.c         | 4 +---
 drivers/watchdog/advantechwdt.c       | 1 -
 drivers/watchdog/alim1535_wdt.c       | 1 -
 drivers/watchdog/alim7101_wdt.c       | 1 -
 drivers/watchdog/ar7_wdt.c            | 1 -
 drivers/watchdog/at32ap700x_wdt.c     | 1 -
 drivers/watchdog/at91rm9200_wdt.c     | 1 -
 drivers/watchdog/ath79_wdt.c          | 1 -
 drivers/watchdog/bcm2835_wdt.c        | 1 -
 drivers/watchdog/bcm63xx_wdt.c        | 1 -
 drivers/watchdog/bfin_wdt.c           | 1 -
 drivers/watchdog/cpu5wdt.c            | 1 -
 drivers/watchdog/davinci_wdt.c        | 1 -
 drivers/watchdog/dw_wdt.c             | 1 -
 drivers/watchdog/ep93xx_wdt.c         | 1 -
 drivers/watchdog/eurotechwdt.c        | 1 -
 drivers/watchdog/gef_wdt.c            | 1 -
 drivers/watchdog/geodewdt.c           | 1 -
 drivers/watchdog/hpwdt.c              | 1 -
 drivers/watchdog/i6300esb.c           | 1 -
 drivers/watchdog/iTCO_wdt.c           | 3 ---
 drivers/watchdog/ib700wdt.c           | 1 -
 drivers/watchdog/ibmasr.c             | 1 -
 drivers/watchdog/ie6xx_wdt.c          | 1 -
 drivers/watchdog/imx2_wdt.c           | 1 -
 drivers/watchdog/indydog.c            | 1 -
 drivers/watchdog/intel_scu_watchdog.c | 1 -
 drivers/watchdog/iop_wdt.c            | 1 -
 drivers/watchdog/it8712f_wdt.c        | 1 -
 drivers/watchdog/it87_wdt.c           | 1 -
 drivers/watchdog/ixp4xx_wdt.c         | 2 --
 drivers/watchdog/jz4740_wdt.c         | 1 -
 drivers/watchdog/kempld_wdt.c         | 1 -
 drivers/watchdog/ks8695_wdt.c         | 1 -
 drivers/watchdog/lantiq_wdt.c         | 1 -
 drivers/watchdog/m54xx_wdt.c          | 1 -
 drivers/watchdog/machzwd.c            | 1 -
 drivers/watchdog/max63xx_wdt.c        | 1 -
 drivers/watchdog/mixcomwd.c           | 1 -
 drivers/watchdog/mpc8xxx_wdt.c        | 1 -
 drivers/watchdog/mtx-1_wdt.c          | 1 -
 drivers/watchdog/mv64x60_wdt.c        | 1 -
 drivers/watchdog/nuc900_wdt.c         | 1 -
 drivers/watchdog/nv_tco.c             | 1 -
 drivers/watchdog/of_xilinx_wdt.c      | 1 -
 drivers/watchdog/orion_wdt.c          | 1 -
 drivers/watchdog/pc87413_wdt.c        | 2 --
 drivers/watchdog/pcwd.c               | 4 +---
 drivers/watchdog/pcwd_pci.c           | 4 +---
 drivers/watchdog/pcwd_usb.c           | 4 +---
 drivers/watchdog/pika_wdt.c           | 2 --
 drivers/watchdog/pnx4008_wdt.c        | 1 -
 drivers/watchdog/pnx833x_wdt.c        | 1 -
 drivers/watchdog/rc32434_wdt.c        | 4 +---
 drivers/watchdog/rdc321x_wdt.c        | 1 -
 drivers/watchdog/rt2880_wdt.c         | 1 -
 drivers/watchdog/s3c2410_wdt.c        | 2 --
 drivers/watchdog/sa1100_wdt.c         | 1 -
 drivers/watchdog/sb_wdog.c            | 1 -
 drivers/watchdog/sbc60xxwdt.c         | 1 -
 drivers/watchdog/sbc7240_wdt.c        | 2 --
 drivers/watchdog/sbc8360.c            | 1 -
 drivers/watchdog/sbc_epx_c3.c         | 1 -
 drivers/watchdog/sbc_fitpc2_wdt.c     | 2 --
 drivers/watchdog/sc1200wdt.c          | 1 -
 drivers/watchdog/sc520_wdt.c          | 1 -
 drivers/watchdog/sch311x_wdt.c        | 5 +----
 drivers/watchdog/scx200_wdt.c         | 1 -
 drivers/watchdog/shwdt.c              | 1 -
 drivers/watchdog/smsc37b787_wdt.c     | 2 --
 drivers/watchdog/softdog.c            | 1 -
 drivers/watchdog/sp5100_tco.c         | 1 -
 drivers/watchdog/stmp3xxx_rtc_wdt.c   | 1 -
 drivers/watchdog/txx9wdt.c            | 1 -
 drivers/watchdog/ux500_wdt.c          | 1 -
 drivers/watchdog/w83627hf_wdt.c       | 1 -
 drivers/watchdog/w83697hf_wdt.c       | 1 -
 drivers/watchdog/w83697ug_wdt.c       | 1 -
 drivers/watchdog/w83877f_wdt.c        | 1 -
 drivers/watchdog/w83977f_wdt.c        | 1 -
 drivers/watchdog/wafer5823wdt.c       | 1 -
 drivers/watchdog/wdrtas.c             | 2 --
 drivers/watchdog/wdt.c                | 2 --
 drivers/watchdog/wdt285.c             | 1 -
 drivers/watchdog/wdt977.c             | 1 -
 drivers/watchdog/wdt_pci.c            | 2 --
 drivers/watchdog/xen_wdt.c            | 1 -
 87 files changed, 6 insertions(+), 112 deletions(-)

diff --git a/drivers/watchdog/acquirewdt.c b/drivers/watchdog/acquirewdt.c
index 24a517777fa0..5cf1621def9c 100644
--- a/drivers/watchdog/acquirewdt.c
+++ b/drivers/watchdog/acquirewdt.c
@@ -60,8 +60,7 @@
 #include <linux/types.h>		/* For standard types (like size_t) */
 #include <linux/errno.h>		/* For the -ENODEV/... values */
 #include <linux/kernel.h>		/* For printk/panic/... */
-#include <linux/miscdevice.h>		/* For MODULE_ALIAS_MISCDEV
-							(WATCHDOG_MINOR) */
+#include <linux/miscdevice.h>		/* For struct miscdevice */
 #include <linux/watchdog.h>		/* For the watchdog specific items */
 #include <linux/fs.h>			/* For file operations */
 #include <linux/ioport.h>		/* For io-port access */
@@ -337,4 +336,3 @@ module_exit(acq_exit);
 MODULE_AUTHOR("David Woodhouse");
 MODULE_DESCRIPTION("Acquire Inc. Single Board Computer Watchdog Timer driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/advantechwdt.c b/drivers/watchdog/advantechwdt.c
index cc6702fc5268..a8961addc59c 100644
--- a/drivers/watchdog/advantechwdt.c
+++ b/drivers/watchdog/advantechwdt.c
@@ -345,4 +345,3 @@ module_exit(advwdt_exit);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Marek Michalkiewicz <marekm@linux.org.pl>");
 MODULE_DESCRIPTION("Advantech Single Board Computer WDT driver");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/alim1535_wdt.c b/drivers/watchdog/alim1535_wdt.c
index 41b84936a521..fbb7b94cabfd 100644
--- a/drivers/watchdog/alim1535_wdt.c
+++ b/drivers/watchdog/alim1535_wdt.c
@@ -452,4 +452,3 @@ module_exit(watchdog_exit);
 MODULE_AUTHOR("Alan Cox");
 MODULE_DESCRIPTION("ALi M1535 PMU Watchdog Timer driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/alim7101_wdt.c b/drivers/watchdog/alim7101_wdt.c
index 5eee55012e33..12f0b762b528 100644
--- a/drivers/watchdog/alim7101_wdt.c
+++ b/drivers/watchdog/alim7101_wdt.c
@@ -425,4 +425,3 @@ MODULE_DEVICE_TABLE(pci, alim7101_pci_tbl);
 MODULE_AUTHOR("Steve Hill");
 MODULE_DESCRIPTION("ALi M7101 PMU Computer Watchdog Timer driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/ar7_wdt.c b/drivers/watchdog/ar7_wdt.c
index b3709f9cf5be..3a996576343a 100644
--- a/drivers/watchdog/ar7_wdt.c
+++ b/drivers/watchdog/ar7_wdt.c
@@ -46,7 +46,6 @@
 MODULE_AUTHOR("Nicolas Thill <nico@openwrt.org>");
 MODULE_DESCRIPTION(LONGNAME);
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 
 static int margin = 60;
 module_param(margin, int, 0);
diff --git a/drivers/watchdog/at32ap700x_wdt.c b/drivers/watchdog/at32ap700x_wdt.c
index b178e717ef09..afe7d17e6776 100644
--- a/drivers/watchdog/at32ap700x_wdt.c
+++ b/drivers/watchdog/at32ap700x_wdt.c
@@ -434,4 +434,3 @@ module_platform_driver_probe(at32_wdt_driver, at32_wdt_probe);
 MODULE_AUTHOR("Hans-Christian Egtvedt <egtvedt@samfundet.no>");
 MODULE_DESCRIPTION("Watchdog driver for Atmel AT32AP700X");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/at91rm9200_wdt.c b/drivers/watchdog/at91rm9200_wdt.c
index aa5cb56cf68a..dee6cc21d270 100644
--- a/drivers/watchdog/at91rm9200_wdt.c
+++ b/drivers/watchdog/at91rm9200_wdt.c
@@ -297,5 +297,4 @@ module_exit(at91_wdt_exit);
 MODULE_AUTHOR("Andrew Victor");
 MODULE_DESCRIPTION("Watchdog driver for Atmel AT91RM9200");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 MODULE_ALIAS("platform:at91_wdt");
diff --git a/drivers/watchdog/ath79_wdt.c b/drivers/watchdog/ath79_wdt.c
index 37cb09b27b63..9fa1f69dac13 100644
--- a/drivers/watchdog/ath79_wdt.c
+++ b/drivers/watchdog/ath79_wdt.c
@@ -329,4 +329,3 @@ MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org");
 MODULE_AUTHOR("Imre Kaloz <kaloz@openwrt.org");
 MODULE_LICENSE("GPL v2");
 MODULE_ALIAS("platform:" DRIVER_NAME);
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/bcm2835_wdt.c b/drivers/watchdog/bcm2835_wdt.c
index 61566fc47f84..a6a2cebb2587 100644
--- a/drivers/watchdog/bcm2835_wdt.c
+++ b/drivers/watchdog/bcm2835_wdt.c
@@ -186,4 +186,3 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
 MODULE_AUTHOR("Lubomir Rintel <lkundrak@v3.sk>");
 MODULE_DESCRIPTION("Driver for Broadcom BCM2835 watchdog timer");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/bcm63xx_wdt.c b/drivers/watchdog/bcm63xx_wdt.c
index a14a58d9d110..4eb188b87f8e 100644
--- a/drivers/watchdog/bcm63xx_wdt.c
+++ b/drivers/watchdog/bcm63xx_wdt.c
@@ -317,5 +317,4 @@ MODULE_AUTHOR("Miguel Gaio <miguel.gaio@efixo.com>");
 MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
 MODULE_DESCRIPTION("Driver for the Broadcom BCM63xx SoC watchdog");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 MODULE_ALIAS("platform:bcm63xx-wdt");
diff --git a/drivers/watchdog/bfin_wdt.c b/drivers/watchdog/bfin_wdt.c
index 5d36d6fb4969..a3b6a5b30f9f 100644
--- a/drivers/watchdog/bfin_wdt.c
+++ b/drivers/watchdog/bfin_wdt.c
@@ -465,7 +465,6 @@ module_exit(bfin_wdt_exit);
 MODULE_AUTHOR("Michele d'Amico, Mike Frysinger <vapier@gentoo.org>");
 MODULE_DESCRIPTION("Blackfin Watchdog Device Driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 
 module_param(timeout, uint, 0);
 MODULE_PARM_DESC(timeout,
diff --git a/drivers/watchdog/cpu5wdt.c b/drivers/watchdog/cpu5wdt.c
index f270bb7bc456..f7ae49edb518 100644
--- a/drivers/watchdog/cpu5wdt.c
+++ b/drivers/watchdog/cpu5wdt.c
@@ -289,7 +289,6 @@ MODULE_AUTHOR("Heiko Ronsdorf <hero@ihg.uni-duisburg.de>");
 MODULE_DESCRIPTION("sma cpu5 watchdog driver");
 MODULE_SUPPORTED_DEVICE("sma cpu5 watchdog");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 
 module_param(port, int, 0);
 MODULE_PARM_DESC(port, "base address of watchdog card, default is 0x91");
diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c
index bead7740c86a..dd625cca1ae5 100644
--- a/drivers/watchdog/davinci_wdt.c
+++ b/drivers/watchdog/davinci_wdt.c
@@ -267,5 +267,4 @@ MODULE_PARM_DESC(heartbeat,
 		 __MODULE_STRING(DEFAULT_HEARTBEAT));
 
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 MODULE_ALIAS("platform:watchdog");
diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c
index aed1cbe81882..42cfd79edf2a 100644
--- a/drivers/watchdog/dw_wdt.c
+++ b/drivers/watchdog/dw_wdt.c
@@ -352,4 +352,3 @@ module_platform_driver(dw_wdt_driver);
 MODULE_AUTHOR("Jamie Iles");
 MODULE_DESCRIPTION("Synopsys DesignWare Watchdog Driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/ep93xx_wdt.c b/drivers/watchdog/ep93xx_wdt.c
index e0574844c313..833e81311848 100644
--- a/drivers/watchdog/ep93xx_wdt.c
+++ b/drivers/watchdog/ep93xx_wdt.c
@@ -179,4 +179,3 @@ MODULE_AUTHOR("Ray Lehtiniemi <rayl@mail.com>,"
 MODULE_DESCRIPTION("EP93xx Watchdog");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(WDT_VERSION);
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/eurotechwdt.c b/drivers/watchdog/eurotechwdt.c
index cd31b8a2a729..23ee53240c4c 100644
--- a/drivers/watchdog/eurotechwdt.c
+++ b/drivers/watchdog/eurotechwdt.c
@@ -477,4 +477,3 @@ module_exit(eurwdt_exit);
 MODULE_AUTHOR("Rodolfo Giometti");
 MODULE_DESCRIPTION("Driver for Eurotech CPU-1220/1410 on board watchdog");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/gef_wdt.c b/drivers/watchdog/gef_wdt.c
index 3755833430dc..25beb30878d7 100644
--- a/drivers/watchdog/gef_wdt.c
+++ b/drivers/watchdog/gef_wdt.c
@@ -331,5 +331,4 @@ module_exit(gef_wdt_exit);
 MODULE_AUTHOR("Martyn Welch <martyn.welch@ge.com>");
 MODULE_DESCRIPTION("GE watchdog driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 MODULE_ALIAS("platform:gef_wdt");
diff --git a/drivers/watchdog/geodewdt.c b/drivers/watchdog/geodewdt.c
index fcd599d4e225..4a6ae84b42bc 100644
--- a/drivers/watchdog/geodewdt.c
+++ b/drivers/watchdog/geodewdt.c
@@ -297,4 +297,3 @@ module_exit(geodewdt_exit);
 MODULE_AUTHOR("Advanced Micro Devices, Inc");
 MODULE_DESCRIPTION("Geode GX/LX Watchdog Driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
index 19f3c3fc65f4..45b979d9dd13 100644
--- a/drivers/watchdog/hpwdt.c
+++ b/drivers/watchdog/hpwdt.c
@@ -881,7 +881,6 @@ MODULE_AUTHOR("Tom Mingarelli");
 MODULE_DESCRIPTION("hp watchdog driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(HPWDT_VERSION);
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 
 module_param(soft_margin, int, 0);
 MODULE_PARM_DESC(soft_margin, "Watchdog timeout in seconds");
diff --git a/drivers/watchdog/i6300esb.c b/drivers/watchdog/i6300esb.c
index 2b2ea13d03ea..a72fe9361ddf 100644
--- a/drivers/watchdog/i6300esb.c
+++ b/drivers/watchdog/i6300esb.c
@@ -497,4 +497,3 @@ module_pci_driver(esb_driver);
 MODULE_AUTHOR("Ross Biro and David Härdeman");
 MODULE_DESCRIPTION("Watchdog driver for Intel 6300ESB chipsets");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/iTCO_wdt.c b/drivers/watchdog/iTCO_wdt.c
index 439b160b3e0f..04f8af65acfd 100644
--- a/drivers/watchdog/iTCO_wdt.c
+++ b/drivers/watchdog/iTCO_wdt.c
@@ -56,8 +56,6 @@
 #include <linux/types.h>		/* For standard types (like size_t) */
 #include <linux/errno.h>		/* For the -ENODEV/... values */
 #include <linux/kernel.h>		/* For printk/panic/... */
-#include <linux/miscdevice.h>		/* For MODULE_ALIAS_MISCDEV
-							(WATCHDOG_MINOR) */
 #include <linux/watchdog.h>		/* For the watchdog specific items */
 #include <linux/init.h>			/* For __init/__exit/... */
 #include <linux/fs.h>			/* For file operations */
@@ -582,5 +580,4 @@ MODULE_AUTHOR("Wim Van Sebroeck <wim@iguana.be>");
 MODULE_DESCRIPTION("Intel TCO WatchDog Timer Driver");
 MODULE_VERSION(DRV_VERSION);
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/watchdog/ib700wdt.c b/drivers/watchdog/ib700wdt.c
index eb6b5cc98ec6..7ae36690c449 100644
--- a/drivers/watchdog/ib700wdt.c
+++ b/drivers/watchdog/ib700wdt.c
@@ -382,6 +382,5 @@ module_exit(ibwdt_exit);
 MODULE_AUTHOR("Charles Howes <chowes@vsol.net>");
 MODULE_DESCRIPTION("IB700 SBC watchdog driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 
 /* end of ib700wdt.c */
diff --git a/drivers/watchdog/ibmasr.c b/drivers/watchdog/ibmasr.c
index bc3fb8fe89ab..db0a34460e57 100644
--- a/drivers/watchdog/ibmasr.c
+++ b/drivers/watchdog/ibmasr.c
@@ -419,4 +419,3 @@ MODULE_PARM_DESC(nowayout,
 MODULE_DESCRIPTION("IBM Automatic Server Restart driver");
 MODULE_AUTHOR("Andrey Panin");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/ie6xx_wdt.c b/drivers/watchdog/ie6xx_wdt.c
index e24ef6a6e064..70a240297c6d 100644
--- a/drivers/watchdog/ie6xx_wdt.c
+++ b/drivers/watchdog/ie6xx_wdt.c
@@ -344,5 +344,4 @@ module_exit(ie6xx_wdt_exit);
 MODULE_AUTHOR("Alexander Stein <alexander.stein@systec-electronic.com>");
 MODULE_DESCRIPTION("Intel Atom E6xx Watchdog Device Driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 MODULE_ALIAS("platform:" DRIVER_NAME);
diff --git a/drivers/watchdog/imx2_wdt.c b/drivers/watchdog/imx2_wdt.c
index 17680aa6cb32..b4786bccc42c 100644
--- a/drivers/watchdog/imx2_wdt.c
+++ b/drivers/watchdog/imx2_wdt.c
@@ -339,5 +339,4 @@ module_platform_driver_probe(imx2_wdt_driver, imx2_wdt_probe);
 MODULE_AUTHOR("Wolfram Sang");
 MODULE_DESCRIPTION("Watchdog driver for IMX2 and later");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 MODULE_ALIAS("platform:" DRIVER_NAME);
diff --git a/drivers/watchdog/indydog.c b/drivers/watchdog/indydog.c
index 6d90f7a2ce22..1b5c25a47b87 100644
--- a/drivers/watchdog/indydog.c
+++ b/drivers/watchdog/indydog.c
@@ -214,4 +214,3 @@ module_exit(watchdog_exit);
 MODULE_AUTHOR("Guido Guenther <agx@sigxcpu.org>");
 MODULE_DESCRIPTION("Hardware Watchdog Device for SGI IP22");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/intel_scu_watchdog.c b/drivers/watchdog/intel_scu_watchdog.c
index 8ced25613956..e13e65e996aa 100644
--- a/drivers/watchdog/intel_scu_watchdog.c
+++ b/drivers/watchdog/intel_scu_watchdog.c
@@ -564,5 +564,4 @@ module_exit(intel_scu_watchdog_exit);
 MODULE_AUTHOR("Intel Corporation");
 MODULE_DESCRIPTION("Intel SCU Watchdog Device Driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 MODULE_VERSION(WDT_VER);
diff --git a/drivers/watchdog/iop_wdt.c b/drivers/watchdog/iop_wdt.c
index d964faf1a250..b16013ffacc2 100644
--- a/drivers/watchdog/iop_wdt.c
+++ b/drivers/watchdog/iop_wdt.c
@@ -259,4 +259,3 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
 MODULE_AUTHOR("Curt E Bruns <curt.e.bruns@intel.com>");
 MODULE_DESCRIPTION("iop watchdog timer driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/it8712f_wdt.c b/drivers/watchdog/it8712f_wdt.c
index f4cce6d66a55..41b3979a9d87 100644
--- a/drivers/watchdog/it8712f_wdt.c
+++ b/drivers/watchdog/it8712f_wdt.c
@@ -41,7 +41,6 @@
 MODULE_AUTHOR("Jorge Boncompte - DTI2 <jorge@dti2.net>");
 MODULE_DESCRIPTION("IT8712F Watchdog Driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 
 static int max_units = 255;
 static int margin = 60;		/* in seconds */
diff --git a/drivers/watchdog/it87_wdt.c b/drivers/watchdog/it87_wdt.c
index d3dcc6988b5f..e2bba68ae71e 100644
--- a/drivers/watchdog/it87_wdt.c
+++ b/drivers/watchdog/it87_wdt.c
@@ -772,4 +772,3 @@ module_exit(it87_wdt_exit);
 MODULE_AUTHOR("Oliver Schuster");
 MODULE_DESCRIPTION("Hardware Watchdog Device Driver for IT87xx EC-LPC I/O");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/ixp4xx_wdt.c b/drivers/watchdog/ixp4xx_wdt.c
index 5580b4fff7fe..f20cc53ff719 100644
--- a/drivers/watchdog/ixp4xx_wdt.c
+++ b/drivers/watchdog/ixp4xx_wdt.c
@@ -208,5 +208,3 @@ module_param(nowayout, bool, 0);
 MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
 
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-
diff --git a/drivers/watchdog/jz4740_wdt.c b/drivers/watchdog/jz4740_wdt.c
index d1afdf684c18..2de486a7eea1 100644
--- a/drivers/watchdog/jz4740_wdt.c
+++ b/drivers/watchdog/jz4740_wdt.c
@@ -222,5 +222,4 @@ module_platform_driver(jz4740_wdt_driver);
 MODULE_AUTHOR("Paul Cercueil <paul@crapouillou.net>");
 MODULE_DESCRIPTION("jz4740 Watchdog Driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 MODULE_ALIAS("platform:jz4740-wdt");
diff --git a/drivers/watchdog/kempld_wdt.c b/drivers/watchdog/kempld_wdt.c
index 8a8e3eca8aea..a1a3638c579c 100644
--- a/drivers/watchdog/kempld_wdt.c
+++ b/drivers/watchdog/kempld_wdt.c
@@ -578,4 +578,3 @@ module_platform_driver(kempld_wdt_driver);
 MODULE_DESCRIPTION("KEM PLD Watchdog Driver");
 MODULE_AUTHOR("Michael Brunner <michael.brunner@kontron.com>");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/ks8695_wdt.c b/drivers/watchdog/ks8695_wdt.c
index dce9ecffd44a..40ca5594a336 100644
--- a/drivers/watchdog/ks8695_wdt.c
+++ b/drivers/watchdog/ks8695_wdt.c
@@ -323,5 +323,4 @@ module_exit(ks8695_wdt_exit);
 MODULE_AUTHOR("Andrew Victor");
 MODULE_DESCRIPTION("Watchdog driver for KS8695");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 MODULE_ALIAS("platform:ks8695_wdt");
diff --git a/drivers/watchdog/lantiq_wdt.c b/drivers/watchdog/lantiq_wdt.c
index 088fd0c9d888..3b3148c764a3 100644
--- a/drivers/watchdog/lantiq_wdt.c
+++ b/drivers/watchdog/lantiq_wdt.c
@@ -249,4 +249,3 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
 MODULE_AUTHOR("John Crispin <blogic@openwrt.org>");
 MODULE_DESCRIPTION("Lantiq SoC Watchdog");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/m54xx_wdt.c b/drivers/watchdog/m54xx_wdt.c
index 173494a681e6..da6fa2b68074 100644
--- a/drivers/watchdog/m54xx_wdt.c
+++ b/drivers/watchdog/m54xx_wdt.c
@@ -223,4 +223,3 @@ module_param(nowayout, bool, 0);
 MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
 
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/machzwd.c b/drivers/watchdog/machzwd.c
index bf84f788e592..9826b59ef734 100644
--- a/drivers/watchdog/machzwd.c
+++ b/drivers/watchdog/machzwd.c
@@ -92,7 +92,6 @@ static unsigned short zf_readw(unsigned char port)
 MODULE_AUTHOR("Fernando Fuganti <fuganti@conectiva.com.br>");
 MODULE_DESCRIPTION("MachZ ZF-Logic Watchdog driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 
 static bool nowayout = WATCHDOG_NOWAYOUT;
 module_param(nowayout, bool, 0);
diff --git a/drivers/watchdog/max63xx_wdt.c b/drivers/watchdog/max63xx_wdt.c
index cc9d328086ed..6d4f3998e1f6 100644
--- a/drivers/watchdog/max63xx_wdt.c
+++ b/drivers/watchdog/max63xx_wdt.c
@@ -258,4 +258,3 @@ MODULE_PARM_DESC(nodelay,
 		 "(max6373/74 only, default=0)");
 
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/mixcomwd.c b/drivers/watchdog/mixcomwd.c
index 97d62ee50341..be86ea359eee 100644
--- a/drivers/watchdog/mixcomwd.c
+++ b/drivers/watchdog/mixcomwd.c
@@ -315,4 +315,3 @@ MODULE_AUTHOR("Gergely Madarasz <gorgo@itc.hu>");
 MODULE_DESCRIPTION("MixCom Watchdog driver");
 MODULE_VERSION(VERSION);
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/mpc8xxx_wdt.c b/drivers/watchdog/mpc8xxx_wdt.c
index d0ebebae607c..d82152077fd9 100644
--- a/drivers/watchdog/mpc8xxx_wdt.c
+++ b/drivers/watchdog/mpc8xxx_wdt.c
@@ -330,4 +330,3 @@ MODULE_AUTHOR("Dave Updegraff, Kumar Gala");
 MODULE_DESCRIPTION("Driver for watchdog timer in MPC8xx/MPC83xx/MPC86xx "
 		   "uProcessors");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/mtx-1_wdt.c b/drivers/watchdog/mtx-1_wdt.c
index b4341110ad4f..edb31ffd7927 100644
--- a/drivers/watchdog/mtx-1_wdt.c
+++ b/drivers/watchdog/mtx-1_wdt.c
@@ -257,5 +257,4 @@ module_platform_driver(mtx1_wdt_driver);
 MODULE_AUTHOR("Michael Stickel, Florian Fainelli");
 MODULE_DESCRIPTION("Driver for the MTX-1 watchdog");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 MODULE_ALIAS("platform:mtx1-wdt");
diff --git a/drivers/watchdog/mv64x60_wdt.c b/drivers/watchdog/mv64x60_wdt.c
index 2f2ff19da6e2..f9fa58409396 100644
--- a/drivers/watchdog/mv64x60_wdt.c
+++ b/drivers/watchdog/mv64x60_wdt.c
@@ -323,5 +323,4 @@ module_exit(mv64x60_wdt_exit);
 MODULE_AUTHOR("James Chapman <jchapman@katalix.com>");
 MODULE_DESCRIPTION("MV64x60 watchdog driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 MODULE_ALIAS("platform:" MV64x60_WDT_NAME);
diff --git a/drivers/watchdog/nuc900_wdt.c b/drivers/watchdog/nuc900_wdt.c
index b15b6efd91a1..a0d893b0930e 100644
--- a/drivers/watchdog/nuc900_wdt.c
+++ b/drivers/watchdog/nuc900_wdt.c
@@ -307,5 +307,4 @@ module_platform_driver(nuc900wdt_driver);
 MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>");
 MODULE_DESCRIPTION("Watchdog driver for NUC900");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 MODULE_ALIAS("platform:nuc900-wdt");
diff --git a/drivers/watchdog/nv_tco.c b/drivers/watchdog/nv_tco.c
index 59cf19eeea07..231e5b9d5c8e 100644
--- a/drivers/watchdog/nv_tco.c
+++ b/drivers/watchdog/nv_tco.c
@@ -513,4 +513,3 @@ module_exit(nv_tco_cleanup_module);
 MODULE_AUTHOR("Mike Waychison");
 MODULE_DESCRIPTION("TCO timer driver for NV chipsets");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/of_xilinx_wdt.c b/drivers/watchdog/of_xilinx_wdt.c
index 4dd281f2c33f..fb57103c8ebc 100644
--- a/drivers/watchdog/of_xilinx_wdt.c
+++ b/drivers/watchdog/of_xilinx_wdt.c
@@ -405,4 +405,3 @@ module_platform_driver(xwdt_driver);
 MODULE_AUTHOR("Alejandro Cabrera <aldaya@gmail.com>");
 MODULE_DESCRIPTION("Xilinx Watchdog driver");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c
index 34adb540d02c..44edca66d564 100644
--- a/drivers/watchdog/orion_wdt.c
+++ b/drivers/watchdog/orion_wdt.c
@@ -225,4 +225,3 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
 
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:orion_wdt");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/pc87413_wdt.c b/drivers/watchdog/pc87413_wdt.c
index 5afb89b48650..5211d56b3681 100644
--- a/drivers/watchdog/pc87413_wdt.c
+++ b/drivers/watchdog/pc87413_wdt.c
@@ -580,8 +580,6 @@ MODULE_AUTHOR("Sven Anders <anders@anduras.de>, "
 MODULE_DESCRIPTION("PC87413 WDT driver");
 MODULE_LICENSE("GPL");
 
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-
 module_param(io, int, 0);
 MODULE_PARM_DESC(io, MODNAME " I/O port (default: "
 					__MODULE_STRING(IO_DEFAULT) ").");
diff --git a/drivers/watchdog/pcwd.c b/drivers/watchdog/pcwd.c
index 33e49a7f889f..e936f15dc7c7 100644
--- a/drivers/watchdog/pcwd.c
+++ b/drivers/watchdog/pcwd.c
@@ -61,7 +61,7 @@
 #include <linux/delay.h>	/* For mdelay function */
 #include <linux/timer.h>	/* For timer related operations */
 #include <linux/jiffies.h>	/* For jiffies stuff */
-#include <linux/miscdevice.h>	/* For MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR) */
+#include <linux/miscdevice.h>	/* For struct miscdevice */
 #include <linux/watchdog.h>	/* For the watchdog specific items */
 #include <linux/reboot.h>	/* For kernel_power_off() */
 #include <linux/init.h>		/* For __init/__exit/... */
@@ -1011,5 +1011,3 @@ MODULE_AUTHOR("Ken Hollis <kenji@bitgate.com>, "
 MODULE_DESCRIPTION("Berkshire ISA-PC Watchdog driver");
 MODULE_VERSION(WATCHDOG_VERSION);
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-MODULE_ALIAS_MISCDEV(TEMP_MINOR);
diff --git a/drivers/watchdog/pcwd_pci.c b/drivers/watchdog/pcwd_pci.c
index 7890f84edf76..b4864f254b48 100644
--- a/drivers/watchdog/pcwd_pci.c
+++ b/drivers/watchdog/pcwd_pci.c
@@ -40,7 +40,7 @@
 #include <linux/errno.h>	/* For the -ENODEV/... values */
 #include <linux/kernel.h>	/* For printk/panic/... */
 #include <linux/delay.h>	/* For mdelay function */
-#include <linux/miscdevice.h>	/* For MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR) */
+#include <linux/miscdevice.h>	/* For struct miscdevice */
 #include <linux/watchdog.h>	/* For the watchdog specific items */
 #include <linux/notifier.h>	/* For notifier support */
 #include <linux/reboot.h>	/* For reboot_notifier stuff */
@@ -820,5 +820,3 @@ module_pci_driver(pcipcwd_driver);
 MODULE_AUTHOR("Wim Van Sebroeck <wim@iguana.be>");
 MODULE_DESCRIPTION("Berkshire PCI-PC Watchdog driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-MODULE_ALIAS_MISCDEV(TEMP_MINOR);
diff --git a/drivers/watchdog/pcwd_usb.c b/drivers/watchdog/pcwd_usb.c
index 115a0ebebf4a..53598e832a2a 100644
--- a/drivers/watchdog/pcwd_usb.c
+++ b/drivers/watchdog/pcwd_usb.c
@@ -32,7 +32,7 @@
 #include <linux/errno.h>	/* For the -ENODEV/... values */
 #include <linux/kernel.h>	/* For printk/panic/... */
 #include <linux/delay.h>	/* For mdelay function */
-#include <linux/miscdevice.h>	/* For MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR) */
+#include <linux/miscdevice.h>	/* For struct miscdevice */
 #include <linux/watchdog.h>	/* For the watchdog specific items */
 #include <linux/notifier.h>	/* For notifier support */
 #include <linux/reboot.h>	/* For reboot_notifier stuff */
@@ -72,8 +72,6 @@ do {							\
 MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE(DRIVER_LICENSE);
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-MODULE_ALIAS_MISCDEV(TEMP_MINOR);
 
 /* Module Parameters */
 module_param(debug, int, 0);
diff --git a/drivers/watchdog/pika_wdt.c b/drivers/watchdog/pika_wdt.c
index 329bc60ad7a2..0cdfee266690 100644
--- a/drivers/watchdog/pika_wdt.c
+++ b/drivers/watchdog/pika_wdt.c
@@ -299,5 +299,3 @@ module_exit(pikawdt_exit);
 MODULE_AUTHOR("Sean MacLennan <smaclennan@pikatech.com>");
 MODULE_DESCRIPTION("PIKA FPGA based Watchdog Timer");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-
diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c
index b30bd430f591..1bdcc313e1d9 100644
--- a/drivers/watchdog/pnx4008_wdt.c
+++ b/drivers/watchdog/pnx4008_wdt.c
@@ -233,5 +233,4 @@ MODULE_PARM_DESC(nowayout,
 		 "Set to 1 to keep watchdog running after device release");
 
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 MODULE_ALIAS("platform:pnx4008-watchdog");
diff --git a/drivers/watchdog/pnx833x_wdt.c b/drivers/watchdog/pnx833x_wdt.c
index 1b62a7dfcc95..882fdcb46ad1 100644
--- a/drivers/watchdog/pnx833x_wdt.c
+++ b/drivers/watchdog/pnx833x_wdt.c
@@ -278,4 +278,3 @@ module_exit(watchdog_exit);
 MODULE_AUTHOR("Daniel Laird/Andre McCurdy");
 MODULE_DESCRIPTION("Hardware Watchdog Device for PNX833x");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/rc32434_wdt.c b/drivers/watchdog/rc32434_wdt.c
index 9cf6bc7a234f..71e78ef4b736 100644
--- a/drivers/watchdog/rc32434_wdt.c
+++ b/drivers/watchdog/rc32434_wdt.c
@@ -25,8 +25,7 @@
 #include <linux/errno.h>		/* For the -ENODEV/... values */
 #include <linux/kernel.h>		/* For printk/panic/... */
 #include <linux/fs.h>			/* For file operations */
-#include <linux/miscdevice.h>		/* For MODULE_ALIAS_MISCDEV
-							(WATCHDOG_MINOR) */
+#include <linux/miscdevice.h>		/* For struct miscdevice */
 #include <linux/watchdog.h>		/* For the watchdog specific items */
 #include <linux/init.h>			/* For __init/__exit/... */
 #include <linux/platform_device.h>	/* For platform_driver framework */
@@ -329,4 +328,3 @@ MODULE_AUTHOR("Ondrej Zajicek <santiago@crfreenet.org>,"
 		"Florian Fainelli <florian@openwrt.org>");
 MODULE_DESCRIPTION("Driver for the IDT RC32434 SoC watchdog");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/rdc321x_wdt.c b/drivers/watchdog/rdc321x_wdt.c
index 8d5facd680b1..082d06262959 100644
--- a/drivers/watchdog/rdc321x_wdt.c
+++ b/drivers/watchdog/rdc321x_wdt.c
@@ -298,4 +298,3 @@ module_platform_driver(rdc321x_wdt_driver);
 MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
 MODULE_DESCRIPTION("RDC321x watchdog driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/rt2880_wdt.c b/drivers/watchdog/rt2880_wdt.c
index 4d07964aeae3..a9f84919df7f 100644
--- a/drivers/watchdog/rt2880_wdt.c
+++ b/drivers/watchdog/rt2880_wdt.c
@@ -205,4 +205,3 @@ module_platform_driver(rt288x_wdt_driver);
 MODULE_DESCRIPTION("MediaTek/Ralink RT288x/RT3xxx hardware watchdog driver");
 MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c
index 23aad7c6bf5d..7d8fd041ee25 100644
--- a/drivers/watchdog/s3c2410_wdt.c
+++ b/drivers/watchdog/s3c2410_wdt.c
@@ -29,7 +29,6 @@
 #include <linux/moduleparam.h>
 #include <linux/types.h>
 #include <linux/timer.h>
-#include <linux/miscdevice.h> /* for MODULE_ALIAS_MISCDEV */
 #include <linux/watchdog.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
@@ -539,5 +538,4 @@ MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>, "
 	      "Dimitry Andric <dimitry.andric@tomtom.com>");
 MODULE_DESCRIPTION("S3C2410 Watchdog Device Driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 MODULE_ALIAS("platform:s3c2410-wdt");
diff --git a/drivers/watchdog/sa1100_wdt.c b/drivers/watchdog/sa1100_wdt.c
index ccd6b29e21bf..e1d39a1e9628 100644
--- a/drivers/watchdog/sa1100_wdt.c
+++ b/drivers/watchdog/sa1100_wdt.c
@@ -193,4 +193,3 @@ module_param(margin, int, 0);
 MODULE_PARM_DESC(margin, "Watchdog margin in seconds (default 60s)");
 
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/sb_wdog.c b/drivers/watchdog/sb_wdog.c
index ea5d84a1fdad..3abae50773b8 100644
--- a/drivers/watchdog/sb_wdog.c
+++ b/drivers/watchdog/sb_wdog.c
@@ -341,7 +341,6 @@ MODULE_PARM_DESC(timeout,
       "Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)");
 
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 
 /*
  * example code that can be put in a platform code area to utilize the
diff --git a/drivers/watchdog/sbc60xxwdt.c b/drivers/watchdog/sbc60xxwdt.c
index 63632ec87c7e..2eef58a0cf05 100644
--- a/drivers/watchdog/sbc60xxwdt.c
+++ b/drivers/watchdog/sbc60xxwdt.c
@@ -387,4 +387,3 @@ module_exit(sbc60xxwdt_unload);
 MODULE_AUTHOR("Jakob Oestergaard <jakob@unthought.net>");
 MODULE_DESCRIPTION("60xx Single Board Computer Watchdog Timer driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/sbc7240_wdt.c b/drivers/watchdog/sbc7240_wdt.c
index 719edc8fdeb3..5f268add17ce 100644
--- a/drivers/watchdog/sbc7240_wdt.c
+++ b/drivers/watchdog/sbc7240_wdt.c
@@ -309,5 +309,3 @@ MODULE_AUTHOR("Gilles Gigan");
 MODULE_DESCRIPTION("Watchdog device driver for single board"
 		   " computers EPIC Nano 7240 from iEi");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-
diff --git a/drivers/watchdog/sbc8360.c b/drivers/watchdog/sbc8360.c
index d4781e05f017..da60560ca446 100644
--- a/drivers/watchdog/sbc8360.c
+++ b/drivers/watchdog/sbc8360.c
@@ -404,6 +404,5 @@ MODULE_AUTHOR("Ian E. Morgan <imorgan@webcon.ca>");
 MODULE_DESCRIPTION("SBC8360 watchdog driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION("1.01");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 
 /* end of sbc8360.c */
diff --git a/drivers/watchdog/sbc_epx_c3.c b/drivers/watchdog/sbc_epx_c3.c
index 0c3e9f66ef77..a1c502e0d8ec 100644
--- a/drivers/watchdog/sbc_epx_c3.c
+++ b/drivers/watchdog/sbc_epx_c3.c
@@ -220,4 +220,3 @@ MODULE_DESCRIPTION("Hardware Watchdog Device for Winsystems EPX-C3 SBC.  "
 	"so only use it if you are *sure* you are running on this specific "
 	"SBC system from Winsystems!  It writes to IO ports 0x1ee and 0x1ef!");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/sbc_fitpc2_wdt.c b/drivers/watchdog/sbc_fitpc2_wdt.c
index 90d5527ca886..a517d8bae757 100644
--- a/drivers/watchdog/sbc_fitpc2_wdt.c
+++ b/drivers/watchdog/sbc_fitpc2_wdt.c
@@ -263,5 +263,3 @@ module_param(nowayout, bool, 0);
 MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started");
 
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-
diff --git a/drivers/watchdog/sc1200wdt.c b/drivers/watchdog/sc1200wdt.c
index 3fb83b0c28c2..3b9fff9dcf65 100644
--- a/drivers/watchdog/sc1200wdt.c
+++ b/drivers/watchdog/sc1200wdt.c
@@ -476,4 +476,3 @@ MODULE_AUTHOR("Zwane Mwaikambo <zwane@commfireservices.com>");
 MODULE_DESCRIPTION(
 	"Driver for National Semiconductor PC87307/PC97307 watchdog component");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/sc520_wdt.c b/drivers/watchdog/sc520_wdt.c
index 707e027e5002..f353e18b1a82 100644
--- a/drivers/watchdog/sc520_wdt.c
+++ b/drivers/watchdog/sc520_wdt.c
@@ -433,4 +433,3 @@ MODULE_AUTHOR("Scott and Bill Jennings");
 MODULE_DESCRIPTION(
 	"Driver for watchdog timer in AMD \"Elan\" SC520 uProcessor");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/sch311x_wdt.c b/drivers/watchdog/sch311x_wdt.c
index af7b136b1874..b96127ea3de1 100644
--- a/drivers/watchdog/sch311x_wdt.c
+++ b/drivers/watchdog/sch311x_wdt.c
@@ -26,8 +26,7 @@
 #include <linux/types.h>		/* For standard types (like size_t) */
 #include <linux/errno.h>		/* For the -ENODEV/... values */
 #include <linux/kernel.h>		/* For printk/... */
-#include <linux/miscdevice.h>		/* For MODULE_ALIAS_MISCDEV
-							(WATCHDOG_MINOR) */
+#include <linux/miscdevice.h>		/* For struct miscdevice */
 #include <linux/watchdog.h>		/* For the watchdog specific items */
 #include <linux/init.h>			/* For __init/__exit/... */
 #include <linux/fs.h>			/* For file operations */
@@ -545,5 +544,3 @@ module_exit(sch311x_wdt_exit);
 MODULE_AUTHOR("Wim Van Sebroeck <wim@iguana.be>");
 MODULE_DESCRIPTION("SMSC SCH311x WatchDog Timer Driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-
diff --git a/drivers/watchdog/scx200_wdt.c b/drivers/watchdog/scx200_wdt.c
index 8ae7c282d465..836377cf9271 100644
--- a/drivers/watchdog/scx200_wdt.c
+++ b/drivers/watchdog/scx200_wdt.c
@@ -37,7 +37,6 @@
 MODULE_AUTHOR("Christer Weinigel <wingel@nano-system.com>");
 MODULE_DESCRIPTION("NatSemi SCx200 Watchdog Driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 
 static int margin = 60;		/* in seconds */
 module_param(margin, int, 0);
diff --git a/drivers/watchdog/shwdt.c b/drivers/watchdog/shwdt.c
index 5bca79457768..f9b8e06f3558 100644
--- a/drivers/watchdog/shwdt.c
+++ b/drivers/watchdog/shwdt.c
@@ -343,7 +343,6 @@ MODULE_AUTHOR("Paul Mundt <lethal@linux-sh.org>");
 MODULE_DESCRIPTION("SuperH watchdog driver");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:" DRV_NAME);
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 
 module_param(clock_division_ratio, int, 0);
 MODULE_PARM_DESC(clock_division_ratio,
diff --git a/drivers/watchdog/smsc37b787_wdt.c b/drivers/watchdog/smsc37b787_wdt.c
index 6d665f9c1d58..445ea1ad1fa9 100644
--- a/drivers/watchdog/smsc37b787_wdt.c
+++ b/drivers/watchdog/smsc37b787_wdt.c
@@ -603,8 +603,6 @@ MODULE_DESCRIPTION("Driver for SMsC 37B787 watchdog component (Version "
 								VERSION ")");
 MODULE_LICENSE("GPL");
 
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-
 #ifdef SMSC_SUPPORT_MINUTES
 module_param(unit, int, 0);
 MODULE_PARM_DESC(unit,
diff --git a/drivers/watchdog/softdog.c b/drivers/watchdog/softdog.c
index b68b1e519d53..ef2638fee4a8 100644
--- a/drivers/watchdog/softdog.c
+++ b/drivers/watchdog/softdog.c
@@ -207,4 +207,3 @@ module_exit(watchdog_exit);
 MODULE_AUTHOR("Alan Cox");
 MODULE_DESCRIPTION("Software Watchdog Device Driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/sp5100_tco.c b/drivers/watchdog/sp5100_tco.c
index 0e9d8c479c35..ce63a1bbf395 100644
--- a/drivers/watchdog/sp5100_tco.c
+++ b/drivers/watchdog/sp5100_tco.c
@@ -580,4 +580,3 @@ module_exit(sp5100_tco_cleanup_module);
 MODULE_AUTHOR("Priyanka Gupta");
 MODULE_DESCRIPTION("TCO timer driver for SP5100/SB800 chipset");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/stmp3xxx_rtc_wdt.c b/drivers/watchdog/stmp3xxx_rtc_wdt.c
index 7bf8c508862b..d667f6b51d35 100644
--- a/drivers/watchdog/stmp3xxx_rtc_wdt.c
+++ b/drivers/watchdog/stmp3xxx_rtc_wdt.c
@@ -108,4 +108,3 @@ module_platform_driver(stmp3xxx_wdt_driver);
 MODULE_DESCRIPTION("STMP3XXX RTC Watchdog Driver");
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Wolfram Sang <w.sang@pengutronix.de>");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/txx9wdt.c b/drivers/watchdog/txx9wdt.c
index 88f23c5cfddb..0fd0e8ae62a8 100644
--- a/drivers/watchdog/txx9wdt.c
+++ b/drivers/watchdog/txx9wdt.c
@@ -176,5 +176,4 @@ module_platform_driver_probe(txx9wdt_driver, txx9wdt_probe);
 
 MODULE_DESCRIPTION("TXx9 Watchdog Driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 MODULE_ALIAS("platform:txx9wdt");
diff --git a/drivers/watchdog/ux500_wdt.c b/drivers/watchdog/ux500_wdt.c
index d9af93458df3..e029b5768f2c 100644
--- a/drivers/watchdog/ux500_wdt.c
+++ b/drivers/watchdog/ux500_wdt.c
@@ -167,5 +167,4 @@ module_platform_driver(ux500_wdt_driver);
 MODULE_AUTHOR("Jonas Aaberg <jonas.aberg@stericsson.com>");
 MODULE_DESCRIPTION("Ux500 Watchdog Driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 MODULE_ALIAS("platform:ux500_wdt");
diff --git a/drivers/watchdog/w83627hf_wdt.c b/drivers/watchdog/w83627hf_wdt.c
index 92f1326f0cfc..da6781c12523 100644
--- a/drivers/watchdog/w83627hf_wdt.c
+++ b/drivers/watchdog/w83627hf_wdt.c
@@ -396,4 +396,3 @@ module_exit(wdt_exit);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Pádraig  Brady <P@draigBrady.com>");
 MODULE_DESCRIPTION("w83627hf/thf WDT driver");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/w83697hf_wdt.c b/drivers/watchdog/w83697hf_wdt.c
index cd9f3c1e1af4..aaf2995d37f4 100644
--- a/drivers/watchdog/w83697hf_wdt.c
+++ b/drivers/watchdog/w83697hf_wdt.c
@@ -458,4 +458,3 @@ MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Marcus Junker <junker@anduras.de>, "
 		"Samuel Tardieu <sam@rfc1149.net>");
 MODULE_DESCRIPTION("w83697hf/hg WDT driver");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/w83697ug_wdt.c b/drivers/watchdog/w83697ug_wdt.c
index 274be0bfaf24..ff58cb74671f 100644
--- a/drivers/watchdog/w83697ug_wdt.c
+++ b/drivers/watchdog/w83697ug_wdt.c
@@ -395,4 +395,3 @@ module_exit(wdt_exit);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Flemming Frandsen <ff@nrvissing.net>");
 MODULE_DESCRIPTION("w83697ug/uf WDT driver");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/w83877f_wdt.c b/drivers/watchdog/w83877f_wdt.c
index 7874ae06232b..f0483c75ed32 100644
--- a/drivers/watchdog/w83877f_wdt.c
+++ b/drivers/watchdog/w83877f_wdt.c
@@ -406,4 +406,3 @@ module_exit(w83877f_wdt_unload);
 MODULE_AUTHOR("Scott and Bill Jennings");
 MODULE_DESCRIPTION("Driver for watchdog timer in w83877f chip");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/w83977f_wdt.c b/drivers/watchdog/w83977f_wdt.c
index 5d2c902825c2..91bf55a20024 100644
--- a/drivers/watchdog/w83977f_wdt.c
+++ b/drivers/watchdog/w83977f_wdt.c
@@ -527,4 +527,3 @@ module_exit(w83977f_wdt_exit);
 MODULE_AUTHOR("Jose Goncalves <jose.goncalves@inov.pt>");
 MODULE_DESCRIPTION("Driver for watchdog timer in W83977F I/O chip");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/wafer5823wdt.c b/drivers/watchdog/wafer5823wdt.c
index 25aba6e00a23..db0da7ea4fd8 100644
--- a/drivers/watchdog/wafer5823wdt.c
+++ b/drivers/watchdog/wafer5823wdt.c
@@ -322,6 +322,5 @@ module_exit(wafwdt_exit);
 MODULE_AUTHOR("Justin Cormack");
 MODULE_DESCRIPTION("ICP Wafer 5823 Single Board Computer WDT driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 
 /* end of wafer5823wdt.c */
diff --git a/drivers/watchdog/wdrtas.c b/drivers/watchdog/wdrtas.c
index 3045debd5411..0240c60d14e3 100644
--- a/drivers/watchdog/wdrtas.c
+++ b/drivers/watchdog/wdrtas.c
@@ -48,8 +48,6 @@
 MODULE_AUTHOR("Utz Bacher <utz.bacher@de.ibm.com>");
 MODULE_DESCRIPTION("RTAS watchdog driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-MODULE_ALIAS_MISCDEV(TEMP_MINOR);
 
 static bool wdrtas_nowayout = WATCHDOG_NOWAYOUT;
 static atomic_t wdrtas_miscdev_open = ATOMIC_INIT(0);
diff --git a/drivers/watchdog/wdt.c b/drivers/watchdog/wdt.c
index ee4333c01109..e0206b5b7d89 100644
--- a/drivers/watchdog/wdt.c
+++ b/drivers/watchdog/wdt.c
@@ -664,6 +664,4 @@ module_exit(wdt_exit);
 
 MODULE_AUTHOR("Alan Cox");
 MODULE_DESCRIPTION("Driver for ISA ICS watchdog cards (WDT500/501)");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-MODULE_ALIAS_MISCDEV(TEMP_MINOR);
 MODULE_LICENSE("GPL");
diff --git a/drivers/watchdog/wdt285.c b/drivers/watchdog/wdt285.c
index 5eec74053882..7355ddd0b207 100644
--- a/drivers/watchdog/wdt285.c
+++ b/drivers/watchdog/wdt285.c
@@ -224,7 +224,6 @@ static void __exit footbridge_watchdog_exit(void)
 MODULE_AUTHOR("Phil Blundell <pb@nexus.co.uk>");
 MODULE_DESCRIPTION("Footbridge watchdog driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
 
 module_param(soft_margin, int, 0);
 MODULE_PARM_DESC(soft_margin, "Watchdog timeout in seconds");
diff --git a/drivers/watchdog/wdt977.c b/drivers/watchdog/wdt977.c
index 65a402344933..a8e6f87f60c9 100644
--- a/drivers/watchdog/wdt977.c
+++ b/drivers/watchdog/wdt977.c
@@ -507,4 +507,3 @@ module_exit(wd977_exit);
 MODULE_AUTHOR("Woody Suwalski <woodys@xandros.com>");
 MODULE_DESCRIPTION("W83977AF Watchdog driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff --git a/drivers/watchdog/wdt_pci.c b/drivers/watchdog/wdt_pci.c
index 36a54c0e32dd..ee89ba4dea63 100644
--- a/drivers/watchdog/wdt_pci.c
+++ b/drivers/watchdog/wdt_pci.c
@@ -744,5 +744,3 @@ module_pci_driver(wdtpci_driver);
 MODULE_AUTHOR("JP Nollmann, Alan Cox");
 MODULE_DESCRIPTION("Driver for the ICS PCI-WDT500/501 watchdog cards");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-MODULE_ALIAS_MISCDEV(TEMP_MINOR);
diff --git a/drivers/watchdog/xen_wdt.c b/drivers/watchdog/xen_wdt.c
index 92ad33d0cb71..7a42dffd39e5 100644
--- a/drivers/watchdog/xen_wdt.c
+++ b/drivers/watchdog/xen_wdt.c
@@ -362,4 +362,3 @@ MODULE_AUTHOR("Jan Beulich <jbeulich@novell.com>");
 MODULE_DESCRIPTION("Xen WatchDog Timer Driver");
 MODULE_VERSION(DRV_VERSION);
 MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-- 
cgit 


From 58e5637333afc2bb024ff8aef212311be0614d47 Mon Sep 17 00:00:00 2001
From: Dinh Nguyen <dinguyen@altera.com>
Date: Tue, 22 Oct 2013 11:59:12 -0500
Subject: watchdog: dw: Enable OF support for DW watchdog timer

Add device tree support to the DW watchdog timer.

Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
Acked-by: Jamie Iles <jamie@jamieiles.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Pavel Machek <pavel@denx.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
Cc: devicetree@vger.kernel.org
Cc: linux-watchdog@vger.kernel.org
---
 .../devicetree/bindings/watchdog/dw_wdt.txt         | 21 +++++++++++++++++++++
 drivers/watchdog/dw_wdt.c                           | 10 ++++++++++
 2 files changed, 31 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/watchdog/dw_wdt.txt

diff --git a/Documentation/devicetree/bindings/watchdog/dw_wdt.txt b/Documentation/devicetree/bindings/watchdog/dw_wdt.txt
new file mode 100644
index 000000000000..08e16f684f2d
--- /dev/null
+++ b/Documentation/devicetree/bindings/watchdog/dw_wdt.txt
@@ -0,0 +1,21 @@
+Synopsys Designware Watchdog Timer
+
+Required Properties:
+
+- compatible	: Should contain "snps,dw-wdt"
+- reg		: Base address and size of the watchdog timer registers.
+- clocks	: phandle + clock-specifier for the clock that drives the
+		watchdog timer.
+
+Optional Properties:
+
+- interrupts	: The interrupt used for the watchdog timeout warning.
+
+Example:
+
+	watchdog0: wd@ffd02000 {
+		compatible = "snps,dw-wdt";
+		reg = <0xffd02000 0x1000>;
+		interrupts = <0 171 4>;
+		clocks = <&per_base_clk>;
+	};
diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c
index 42cfd79edf2a..a46f5c7ee7ff 100644
--- a/drivers/watchdog/dw_wdt.c
+++ b/drivers/watchdog/dw_wdt.c
@@ -29,6 +29,7 @@
 #include <linux/miscdevice.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
+#include <linux/of.h>
 #include <linux/pm.h>
 #include <linux/platform_device.h>
 #include <linux/spinlock.h>
@@ -337,12 +338,21 @@ static int dw_wdt_drv_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_OF
+static const struct of_device_id dw_wdt_of_match[] = {
+	{ .compatible = "snps,dw-wdt", },
+	{ /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, dw_wdt_of_match);
+#endif
+
 static struct platform_driver dw_wdt_driver = {
 	.probe		= dw_wdt_drv_probe,
 	.remove		= dw_wdt_drv_remove,
 	.driver		= {
 		.name	= "dw_wdt",
 		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(dw_wdt_of_match),
 		.pm	= &dw_wdt_pm_ops,
 	},
 };
-- 
cgit 


From 6ffcff931971ce78d08220a7a3bbaddaea207598 Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 28 Oct 2013 14:17:17 +0530
Subject: watchdog: watchdog_core: Fix a trivial typo

Fixed a trivial typo.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/watchdog_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/watchdog/watchdog_core.c b/drivers/watchdog/watchdog_core.c
index 05d18b4c661b..461336c4519f 100644
--- a/drivers/watchdog/watchdog_core.c
+++ b/drivers/watchdog/watchdog_core.c
@@ -77,7 +77,7 @@ int watchdog_init_timeout(struct watchdog_device *wdd,
 
 	watchdog_check_min_max_timeout(wdd);
 
-	/* try to get the tiemout module parameter first */
+	/* try to get the timeout module parameter first */
 	if (!watchdog_timeout_invalid(wdd, timeout_parm)) {
 		wdd->timeout = timeout_parm;
 		return ret;
-- 
cgit 


From 0859ffc3b3cb673ac1d3f33b0265cf60d1e3836d Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Thu, 31 Oct 2013 15:50:55 +0800
Subject: watchdog: rt2880_wdt: fix return value check in rt288x_wdt_probe()

In case of error, the function devm_request_and_ioremap() returns NULL
pointer not ERR_PTR(). Fix it by using devm_ioremap_resource() instead
of devm_request_and_ioremap().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/rt2880_wdt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/watchdog/rt2880_wdt.c b/drivers/watchdog/rt2880_wdt.c
index a9f84919df7f..53d37fea183e 100644
--- a/drivers/watchdog/rt2880_wdt.c
+++ b/drivers/watchdog/rt2880_wdt.c
@@ -144,7 +144,7 @@ static int rt288x_wdt_probe(struct platform_device *pdev)
 	int ret;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	rt288x_wdt_base = devm_request_and_ioremap(&pdev->dev, res);
+	rt288x_wdt_base = devm_ioremap_resource(&pdev->dev, res);
 	if (IS_ERR(rt288x_wdt_base))
 		return PTR_ERR(rt288x_wdt_base);
 
-- 
cgit 


From ab5bbdc7015bb35c364ad5f3c955736b17d1acb6 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 8 Nov 2013 01:24:19 -0800
Subject: watchdog: pcwd_usb: overflow in usb_pcwd_send_command()

We changed "buf" from being an array of 6 chars to being a pointer this
sizeof(buf) needs to be updated as well.

Fixes: 2ddb8089a7e5 ('watchdog: pcwd_usb: Use allocated buffer for usb_control_msg')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/pcwd_usb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/watchdog/pcwd_usb.c b/drivers/watchdog/pcwd_usb.c
index 53598e832a2a..b731b5d129be 100644
--- a/drivers/watchdog/pcwd_usb.c
+++ b/drivers/watchdog/pcwd_usb.c
@@ -258,8 +258,8 @@ static int usb_pcwd_send_command(struct usb_pcwd_private *usb_pcwd,
 
 	if (usb_control_msg(usb_pcwd->udev, usb_sndctrlpipe(usb_pcwd->udev, 0),
 			HID_REQ_SET_REPORT, HID_DT_REPORT,
-			0x0200, usb_pcwd->interface_number, buf, sizeof(buf),
-			USB_COMMAND_TIMEOUT) != sizeof(buf)) {
+			0x0200, usb_pcwd->interface_number, buf, 6,
+			USB_COMMAND_TIMEOUT) != 6) {
 		dbg("usb_pcwd_send_command: error in usb_control_msg for "
 				"cmd 0x%x 0x%x 0x%x\n", cmd, *msb, *lsb);
 	}
-- 
cgit 


From b0df38dd3554d47fcfd5c1183951c2fe7dd07eda Mon Sep 17 00:00:00 2001
From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Mon, 11 Nov 2013 21:33:44 +0100
Subject: watchdog: sirf: don't depend on dummy value of CLOCK_TICK_RATE
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

As CSR SiRF is converted to multi platform CLOCK_TICK_RATE is a dummy
value that seems to match the right value is used.
(arch/arm/mach-prima2/include/mach/timex.h which defined CLOCK_TICK_RATE
to 1000000 was removed in commit cf82e0e (ARM: sirf: enable
multiplatform support); marco used the same file.)

To not depend on that dummy value use a local #define instead.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/sirfsoc_wdt.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/watchdog/sirfsoc_wdt.c b/drivers/watchdog/sirfsoc_wdt.c
index 3b8d7397e001..ced3edc95957 100644
--- a/drivers/watchdog/sirfsoc_wdt.c
+++ b/drivers/watchdog/sirfsoc_wdt.c
@@ -14,6 +14,8 @@
 #include <linux/io.h>
 #include <linux/uaccess.h>
 
+#define CLOCK_FREQ	1000000
+
 #define SIRFSOC_TIMER_COUNTER_LO	0x0000
 #define SIRFSOC_TIMER_MATCH_0		0x0008
 #define SIRFSOC_TIMER_INT_EN		0x0024
@@ -50,7 +52,7 @@ static unsigned int sirfsoc_wdt_gettimeleft(struct watchdog_device *wdd)
 
 	time_left = match - counter;
 
-	return time_left / CLOCK_TICK_RATE;
+	return time_left / CLOCK_FREQ;
 }
 
 static int sirfsoc_wdt_updatetimeout(struct watchdog_device *wdd)
@@ -58,7 +60,7 @@ static int sirfsoc_wdt_updatetimeout(struct watchdog_device *wdd)
 	u32 counter, timeout_ticks;
 	void __iomem *wdt_base;
 
-	timeout_ticks = wdd->timeout * CLOCK_TICK_RATE;
+	timeout_ticks = wdd->timeout * CLOCK_FREQ;
 	wdt_base = watchdog_get_drvdata(wdd);
 
 	/* Enable the latch before reading the LATCH_LO register */
-- 
cgit 


From 4a7e94a0637da7e1ddce748da49ae780c370eeef Mon Sep 17 00:00:00 2001
From: Victor Kamensky <victor.kamensky@linaro.org>
Date: Sat, 16 Nov 2013 02:01:05 +0200
Subject: watchdog: omap_wdt: raw read and write endian fix

All OMAP IP blocks expect LE data, but CPU may operate in BE mode.
Need to use endian neutral functions to read/write h/w registers.
I.e instead of __raw_read[lw] and __raw_write[lw] functions code
need to use read[lw]_relaxed and write[lw]_relaxed functions.
If the first simply reads/writes register, the second will byteswap
it if host operates in BE mode.

Changes are trivial sed like replacement of __raw_xxx functions
with xxx_relaxed variant.

Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/omap_wdt.c | 36 ++++++++++++++++++------------------
 1 file changed, 18 insertions(+), 18 deletions(-)

diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
index 7b79ca093e89..09cf0135e8ac 100644
--- a/drivers/watchdog/omap_wdt.c
+++ b/drivers/watchdog/omap_wdt.c
@@ -68,14 +68,14 @@ static void omap_wdt_reload(struct omap_wdt_dev *wdev)
 	void __iomem    *base = wdev->base;
 
 	/* wait for posted write to complete */
-	while ((__raw_readl(base + OMAP_WATCHDOG_WPS)) & 0x08)
+	while ((readl_relaxed(base + OMAP_WATCHDOG_WPS)) & 0x08)
 		cpu_relax();
 
 	wdev->wdt_trgr_pattern = ~wdev->wdt_trgr_pattern;
-	__raw_writel(wdev->wdt_trgr_pattern, (base + OMAP_WATCHDOG_TGR));
+	writel_relaxed(wdev->wdt_trgr_pattern, (base + OMAP_WATCHDOG_TGR));
 
 	/* wait for posted write to complete */
-	while ((__raw_readl(base + OMAP_WATCHDOG_WPS)) & 0x08)
+	while ((readl_relaxed(base + OMAP_WATCHDOG_WPS)) & 0x08)
 		cpu_relax();
 	/* reloaded WCRR from WLDR */
 }
@@ -85,12 +85,12 @@ static void omap_wdt_enable(struct omap_wdt_dev *wdev)
 	void __iomem *base = wdev->base;
 
 	/* Sequence to enable the watchdog */
-	__raw_writel(0xBBBB, base + OMAP_WATCHDOG_SPR);
-	while ((__raw_readl(base + OMAP_WATCHDOG_WPS)) & 0x10)
+	writel_relaxed(0xBBBB, base + OMAP_WATCHDOG_SPR);
+	while ((readl_relaxed(base + OMAP_WATCHDOG_WPS)) & 0x10)
 		cpu_relax();
 
-	__raw_writel(0x4444, base + OMAP_WATCHDOG_SPR);
-	while ((__raw_readl(base + OMAP_WATCHDOG_WPS)) & 0x10)
+	writel_relaxed(0x4444, base + OMAP_WATCHDOG_SPR);
+	while ((readl_relaxed(base + OMAP_WATCHDOG_WPS)) & 0x10)
 		cpu_relax();
 }
 
@@ -99,12 +99,12 @@ static void omap_wdt_disable(struct omap_wdt_dev *wdev)
 	void __iomem *base = wdev->base;
 
 	/* sequence required to disable watchdog */
-	__raw_writel(0xAAAA, base + OMAP_WATCHDOG_SPR);	/* TIMER_MODE */
-	while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x10)
+	writel_relaxed(0xAAAA, base + OMAP_WATCHDOG_SPR);	/* TIMER_MODE */
+	while (readl_relaxed(base + OMAP_WATCHDOG_WPS) & 0x10)
 		cpu_relax();
 
-	__raw_writel(0x5555, base + OMAP_WATCHDOG_SPR);	/* TIMER_MODE */
-	while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x10)
+	writel_relaxed(0x5555, base + OMAP_WATCHDOG_SPR);	/* TIMER_MODE */
+	while (readl_relaxed(base + OMAP_WATCHDOG_WPS) & 0x10)
 		cpu_relax();
 }
 
@@ -115,11 +115,11 @@ static void omap_wdt_set_timer(struct omap_wdt_dev *wdev,
 	void __iomem *base = wdev->base;
 
 	/* just count up at 32 KHz */
-	while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x04)
+	while (readl_relaxed(base + OMAP_WATCHDOG_WPS) & 0x04)
 		cpu_relax();
 
-	__raw_writel(pre_margin, base + OMAP_WATCHDOG_LDR);
-	while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x04)
+	writel_relaxed(pre_margin, base + OMAP_WATCHDOG_LDR);
+	while (readl_relaxed(base + OMAP_WATCHDOG_WPS) & 0x04)
 		cpu_relax();
 }
 
@@ -135,11 +135,11 @@ static int omap_wdt_start(struct watchdog_device *wdog)
 	pm_runtime_get_sync(wdev->dev);
 
 	/* initialize prescaler */
-	while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x01)
+	while (readl_relaxed(base + OMAP_WATCHDOG_WPS) & 0x01)
 		cpu_relax();
 
-	__raw_writel((1 << 5) | (PTV << 2), base + OMAP_WATCHDOG_CNTRL);
-	while (__raw_readl(base + OMAP_WATCHDOG_WPS) & 0x01)
+	writel_relaxed((1 << 5) | (PTV << 2), base + OMAP_WATCHDOG_CNTRL);
+	while (readl_relaxed(base + OMAP_WATCHDOG_WPS) & 0x01)
 		cpu_relax();
 
 	omap_wdt_set_timer(wdev, wdog->timeout);
@@ -275,7 +275,7 @@ static int omap_wdt_probe(struct platform_device *pdev)
 	}
 
 	pr_info("OMAP Watchdog Timer Rev 0x%02x: initial timeout %d sec\n",
-		__raw_readl(wdev->base + OMAP_WATCHDOG_REV) & 0xFF,
+		readl_relaxed(wdev->base + OMAP_WATCHDOG_REV) & 0xFF,
 		omap_wdt->timeout);
 
 	pm_runtime_put_sync(wdev->dev);
-- 
cgit 


From ccdfb97972fdf6424a7c5396fa1f0b26e7f916ed Mon Sep 17 00:00:00 2001
From: Johannes Thumshirn <johannes.thumshirn@men.de>
Date: Sun, 17 Nov 2013 19:25:12 +0100
Subject: EDAC: Add edac-mpc85xx driver to MAINTAINERS

Add drivers/edac/mpc85xx_edac.[ch] to MAINTAINERS file and me as
maintainer.

Signed-off-by: Johannes Thumshirn <johannes.thumshirn@men.de>
Link: https://lkml.kernel.org/r/20131112161901.GA15637@jtlinux
Cc: Doug Thompson <dougthompson@xmission.com>
Cc: Dave Jiang <dave.jiang@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
---
 MAINTAINERS | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 2d9ffd5ab132..fa5b542ffea6 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3136,6 +3136,13 @@ W:	bluesmoke.sourceforge.net
 S:	Maintained
 F:	drivers/edac/i82975x_edac.c
 
+EDAC-MPC85XX
+M:	Johannes Thumshirn <johannes.thumshirn@men.de>
+L:	linux-edac@vger.kernel.org
+W:	bluesmoke.sourceforge.net
+S:	Maintained
+F:	drivers/edac/mpc85xx_edac.[ch]
+
 EDAC-PASEMI
 M:	Egor Martovetsky <egor@pasemi.com>
 L:	linux-edac@vger.kernel.org
-- 
cgit 


From 0f1741c74aa6794b1c7fbdd19f26a4f2377a11c6 Mon Sep 17 00:00:00 2001
From: Johannes Thumshirn <morbidrsa@gmail.com>
Date: Sun, 17 Nov 2013 19:25:14 +0100
Subject: edac/85xx: Remove mpc85xx_pci_err_remove

Remove mpc85xx_pci_err_remove(...) which is obsolete, this removes the
compiler warning which can be seen when building the driver either
statically or as a module.

Signed-off-by: Johannes Thumshirn <morbidrsa@gmail.com>
Link: https://lkml.kernel.org/r/20131112161901.GA15637@jtlinux
Signed-off-by: Johannes Thumshirn <johannes.thumshirn@men.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
---
 drivers/edac/mpc85xx_edac.c | 22 ----------------------
 1 file changed, 22 deletions(-)

diff --git a/drivers/edac/mpc85xx_edac.c b/drivers/edac/mpc85xx_edac.c
index 3eb32f62d72a..fd46b0bd5f2a 100644
--- a/drivers/edac/mpc85xx_edac.c
+++ b/drivers/edac/mpc85xx_edac.c
@@ -327,28 +327,6 @@ err:
 }
 EXPORT_SYMBOL(mpc85xx_pci_err_probe);
 
-static int mpc85xx_pci_err_remove(struct platform_device *op)
-{
-	struct edac_pci_ctl_info *pci = dev_get_drvdata(&op->dev);
-	struct mpc85xx_pci_pdata *pdata = pci->pvt_info;
-
-	edac_dbg(0, "\n");
-
-	out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_CAP_DR,
-		 orig_pci_err_cap_dr);
-
-	out_be32(pdata->pci_vbase + MPC85XX_PCI_ERR_EN, orig_pci_err_en);
-
-	edac_pci_del_device(pci->dev);
-
-	if (edac_op_state == EDAC_OPSTATE_INT)
-		irq_dispose_mapping(pdata->irq);
-
-	edac_pci_free_ctl_info(pci);
-
-	return 0;
-}
-
 #endif				/* CONFIG_PCI */
 
 /**************************** L2 Err device ***************************/
-- 
cgit 


From 2d3c627502f2a9b0a7de06a5a2df2365542a72c9 Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@zytor.com>
Date: Thu, 14 Nov 2013 21:43:47 -0800
Subject: Revert "init/Kconfig: add option to disable kernel compression"

This reverts commit 69f0554ec261fd686ac7fa1c598cc9eb27b83a80.

This patch breaks randconfig on at least the x86-64 architecture, and
most likely on others.  There is work underway to support uncompressed
kernels in a generic way, but it looks like it will amount to
rewriting the support from scratch; see the LKML thread in the Link:
for info.

Therefore, revert this change and wait for the fix.

Reported-by: Pavel Roskin <proski@gnu.org>
Cc: Christian Ruppert <christian.ruppert@abilis.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20131113113418.167b8ffd@IRBT4585
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 init/Kconfig | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/init/Kconfig b/init/Kconfig
index 2d60611c0609..3fc8a2f2fac4 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -118,6 +118,7 @@ config HAVE_KERNEL_LZ4
 choice
 	prompt "Kernel compression mode"
 	default KERNEL_GZIP
+	depends on HAVE_KERNEL_GZIP || HAVE_KERNEL_BZIP2 || HAVE_KERNEL_LZMA || HAVE_KERNEL_XZ || HAVE_KERNEL_LZO || HAVE_KERNEL_LZ4
 	help
 	  The linux kernel is a kind of self-extracting executable.
 	  Several compression algorithms are available, which differ
@@ -136,13 +137,6 @@ choice
 
 	  If in doubt, select 'gzip'
 
-config KERNEL_UNCOMPRESSED
-	bool "No compression"
-	help
-	  No compression at all. The kernel is huge but the compression and
-	  decompression times are zero.
-	  This is usually not what you want.
-
 config KERNEL_GZIP
 	bool "Gzip"
 	depends on HAVE_KERNEL_GZIP
-- 
cgit 


From ef46e0d247da0a7a408573aa15870e231bbd4af2 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sat, 16 Nov 2013 16:00:09 +0100
Subject: drm/i915: restore the early forcewake cleanup
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Some BIOS just leak the forcewak bits, which we clean up.
Unfortunately this has been broken in

commit 521198a2e7095c8c7daa8d7d3a76a110c346be6f
Author: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Date:   Fri Aug 23 16:52:30 2013 +0300

    drm/i915: sanitize forcewake registers on reset

To make this work both for resets and for BIOS takeover just add the
forcewake clearing call back to intel_uncore_early_sanitize.

We need to clear the forcewake in early sanitize so that the forcewak
dance in intel_uncore_init (to figure out whether we have mt or legacy
forcewake on ivb) works. That cleanup fits in nicely with the general
topic of early_sanitize to prepare for the very first mmio ops.

Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reported-by: Jörg Otte <jrg.otte@gmail.com>
Cc: Jörg Otte <jrg.otte@gmail.com>
References: https://lkml.org/lkml/2013/11/16/40
Cc: stable@vger.kernel.org (for 3.12 only)
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/i915/intel_uncore.c | 26 ++++++++++++++------------
 1 file changed, 14 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index f9883ceff946..0b02078a0b84 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -217,6 +217,19 @@ static void gen6_force_wake_work(struct work_struct *work)
 	spin_unlock_irqrestore(&dev_priv->uncore.lock, irqflags);
 }
 
+static void intel_uncore_forcewake_reset(struct drm_device *dev)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+
+	if (IS_VALLEYVIEW(dev)) {
+		vlv_force_wake_reset(dev_priv);
+	} else if (INTEL_INFO(dev)->gen >= 6) {
+		__gen6_gt_force_wake_reset(dev_priv);
+		if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
+			__gen6_gt_force_wake_mt_reset(dev_priv);
+	}
+}
+
 void intel_uncore_early_sanitize(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
@@ -234,19 +247,8 @@ void intel_uncore_early_sanitize(struct drm_device *dev)
 		dev_priv->ellc_size = 128;
 		DRM_INFO("Found %zuMB of eLLC\n", dev_priv->ellc_size);
 	}
-}
 
-static void intel_uncore_forcewake_reset(struct drm_device *dev)
-{
-	struct drm_i915_private *dev_priv = dev->dev_private;
-
-	if (IS_VALLEYVIEW(dev)) {
-		vlv_force_wake_reset(dev_priv);
-	} else if (INTEL_INFO(dev)->gen >= 6) {
-		__gen6_gt_force_wake_reset(dev_priv);
-		if (IS_IVYBRIDGE(dev) || IS_HASWELL(dev))
-			__gen6_gt_force_wake_mt_reset(dev_priv);
-	}
+	intel_uncore_forcewake_reset(dev);
 }
 
 void intel_uncore_sanitize(struct drm_device *dev)
-- 
cgit 


From 793b4b10720174b6b27beaf915425248858d7fc5 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Sat, 16 Nov 2013 22:38:29 +0800
Subject: ARM: dts: imx6qdl: disable spdif "rxtx5" clock option

The spdif "rxtx5" clock option is being set to ipg clk (62) by mistake.
This causes an incorrect time keeping when spdif driver is running,
because ipg is ancestor clock for clocksource while spdif driver will
change the rate of this clock in certain circumstance.  Before the
correct clock for "rxtx5" option can be supplied, let's disable this
option for now by filling a dummy clock for it.

Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
 arch/arm/boot/dts/imx6qdl.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/imx6qdl.dtsi b/arch/arm/boot/dts/imx6qdl.dtsi
index 59154dc15fe4..fb28b2ecb1db 100644
--- a/arch/arm/boot/dts/imx6qdl.dtsi
+++ b/arch/arm/boot/dts/imx6qdl.dtsi
@@ -161,7 +161,7 @@
 					clocks = <&clks 197>, <&clks 3>,
 						 <&clks 197>, <&clks 107>,
 						 <&clks 0>,   <&clks 118>,
-						 <&clks 62>,  <&clks 139>,
+						 <&clks 0>,  <&clks 139>,
 						 <&clks 0>;
 					clock-names = "core",  "rxtx0",
 						      "rxtx1", "rxtx2",
-- 
cgit 


From 8d17fb4455eadbf2642e34e5584d0b0de64d33a8 Mon Sep 17 00:00:00 2001
From: Thomas Hellstrom <thellstrom@vmware.com>
Date: Fri, 15 Nov 2013 00:02:54 -0800
Subject: drm/ttm: Allow execbuf util reserves without ticket

If no reservation ticket is given to the execbuf reservation utilities,
try reservation with non-blocking semantics.
This is intended for eviction paths that use the execbuf reservation
utilities for convenience rather than for deadlock avoidance.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
---
 drivers/gpu/drm/ttm/ttm_execbuf_util.c | 32 +++++++++++++++++++-------------
 include/drm/ttm/ttm_execbuf_util.h     |  3 ++-
 2 files changed, 21 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/ttm/ttm_execbuf_util.c b/drivers/gpu/drm/ttm/ttm_execbuf_util.c
index 6c911789ae5c..479e9418e3d7 100644
--- a/drivers/gpu/drm/ttm/ttm_execbuf_util.c
+++ b/drivers/gpu/drm/ttm/ttm_execbuf_util.c
@@ -32,8 +32,7 @@
 #include <linux/sched.h>
 #include <linux/module.h>
 
-static void ttm_eu_backoff_reservation_locked(struct list_head *list,
-					      struct ww_acquire_ctx *ticket)
+static void ttm_eu_backoff_reservation_locked(struct list_head *list)
 {
 	struct ttm_validate_buffer *entry;
 
@@ -93,8 +92,9 @@ void ttm_eu_backoff_reservation(struct ww_acquire_ctx *ticket,
 	entry = list_first_entry(list, struct ttm_validate_buffer, head);
 	glob = entry->bo->glob;
 	spin_lock(&glob->lru_lock);
-	ttm_eu_backoff_reservation_locked(list, ticket);
-	ww_acquire_fini(ticket);
+	ttm_eu_backoff_reservation_locked(list);
+	if (ticket)
+		ww_acquire_fini(ticket);
 	spin_unlock(&glob->lru_lock);
 }
 EXPORT_SYMBOL(ttm_eu_backoff_reservation);
@@ -130,7 +130,8 @@ int ttm_eu_reserve_buffers(struct ww_acquire_ctx *ticket,
 	entry = list_first_entry(list, struct ttm_validate_buffer, head);
 	glob = entry->bo->glob;
 
-	ww_acquire_init(ticket, &reservation_ww_class);
+	if (ticket)
+		ww_acquire_init(ticket, &reservation_ww_class);
 retry:
 	list_for_each_entry(entry, list, head) {
 		struct ttm_buffer_object *bo = entry->bo;
@@ -139,16 +140,17 @@ retry:
 		if (entry->reserved)
 			continue;
 
-
-		ret = ttm_bo_reserve_nolru(bo, true, false, true, ticket);
+		ret = ttm_bo_reserve_nolru(bo, true, (ticket == NULL), true,
+					   ticket);
 
 		if (ret == -EDEADLK) {
 			/* uh oh, we lost out, drop every reservation and try
 			 * to only reserve this buffer, then start over if
 			 * this succeeds.
 			 */
+			BUG_ON(ticket == NULL);
 			spin_lock(&glob->lru_lock);
-			ttm_eu_backoff_reservation_locked(list, ticket);
+			ttm_eu_backoff_reservation_locked(list);
 			spin_unlock(&glob->lru_lock);
 			ttm_eu_list_ref_sub(list);
 			ret = ww_mutex_lock_slow_interruptible(&bo->resv->lock,
@@ -175,7 +177,8 @@ retry:
 		}
 	}
 
-	ww_acquire_done(ticket);
+	if (ticket)
+		ww_acquire_done(ticket);
 	spin_lock(&glob->lru_lock);
 	ttm_eu_del_from_lru_locked(list);
 	spin_unlock(&glob->lru_lock);
@@ -184,12 +187,14 @@ retry:
 
 err:
 	spin_lock(&glob->lru_lock);
-	ttm_eu_backoff_reservation_locked(list, ticket);
+	ttm_eu_backoff_reservation_locked(list);
 	spin_unlock(&glob->lru_lock);
 	ttm_eu_list_ref_sub(list);
 err_fini:
-	ww_acquire_done(ticket);
-	ww_acquire_fini(ticket);
+	if (ticket) {
+		ww_acquire_done(ticket);
+		ww_acquire_fini(ticket);
+	}
 	return ret;
 }
 EXPORT_SYMBOL(ttm_eu_reserve_buffers);
@@ -224,7 +229,8 @@ void ttm_eu_fence_buffer_objects(struct ww_acquire_ctx *ticket,
 	}
 	spin_unlock(&bdev->fence_lock);
 	spin_unlock(&glob->lru_lock);
-	ww_acquire_fini(ticket);
+	if (ticket)
+		ww_acquire_fini(ticket);
 
 	list_for_each_entry(entry, list, head) {
 		if (entry->old_sync_obj)
diff --git a/include/drm/ttm/ttm_execbuf_util.h b/include/drm/ttm/ttm_execbuf_util.h
index ec8a1d306510..16db7d01a336 100644
--- a/include/drm/ttm/ttm_execbuf_util.h
+++ b/include/drm/ttm/ttm_execbuf_util.h
@@ -70,7 +70,8 @@ extern void ttm_eu_backoff_reservation(struct ww_acquire_ctx *ticket,
 /**
  * function ttm_eu_reserve_buffers
  *
- * @ticket:  [out] ww_acquire_ctx returned by call.
+ * @ticket:  [out] ww_acquire_ctx filled in by call, or NULL if only
+ *           non-blocking reserves should be tried.
  * @list:    thread private list of ttm_validate_buffer structs.
  *
  * Tries to reserve bos pointed to by the list entries for validation.
-- 
cgit 


From ac49251b6bf428b8f4fb1ed8859219f0a72b5db4 Mon Sep 17 00:00:00 2001
From: Thomas Hellstrom <thellstrom@vmware.com>
Date: Fri, 15 Nov 2013 00:06:47 -0800
Subject: drm/vmwgfx: Fix false lockdep warning

A lockdep warning is hit when evicting surfaces and reserving the backup
buffer. Since this buffer can only be reserved by the process holding the
surface reservation or by the buffer eviction processes that use tryreserve,
there is no real deadlock here, but there's no other way to silence lockdep
than to use a tryreserve. This means the reservation might fail if the buffer
is about to be evicted or swapped out, but we now have code in place to
handle that reasonably well.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
---
 drivers/gpu/drm/vmwgfx/vmwgfx_resource.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
index 252501a54def..5aace8081eef 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
@@ -994,7 +994,6 @@ void vmw_resource_unreserve(struct vmw_resource *res,
  */
 static int
 vmw_resource_check_buffer(struct vmw_resource *res,
-			  struct ww_acquire_ctx *ticket,
 			  bool interruptible,
 			  struct ttm_validate_buffer *val_buf)
 {
@@ -1011,7 +1010,7 @@ vmw_resource_check_buffer(struct vmw_resource *res,
 	INIT_LIST_HEAD(&val_list);
 	val_buf->bo = ttm_bo_reference(&res->backup->base);
 	list_add_tail(&val_buf->head, &val_list);
-	ret = ttm_eu_reserve_buffers(ticket, &val_list);
+	ret = ttm_eu_reserve_buffers(NULL, &val_list);
 	if (unlikely(ret != 0))
 		goto out_no_reserve;
 
@@ -1029,7 +1028,7 @@ vmw_resource_check_buffer(struct vmw_resource *res,
 	return 0;
 
 out_no_validate:
-	ttm_eu_backoff_reservation(ticket, &val_list);
+	ttm_eu_backoff_reservation(NULL, &val_list);
 out_no_reserve:
 	ttm_bo_unref(&val_buf->bo);
 	if (backup_dirty)
@@ -1074,8 +1073,7 @@ int vmw_resource_reserve(struct vmw_resource *res, bool no_backup)
  * @val_buf:        Backup buffer information.
  */
 static void
-vmw_resource_backoff_reservation(struct ww_acquire_ctx *ticket,
-				 struct ttm_validate_buffer *val_buf)
+vmw_resource_backoff_reservation(struct ttm_validate_buffer *val_buf)
 {
 	struct list_head val_list;
 
@@ -1084,7 +1082,7 @@ vmw_resource_backoff_reservation(struct ww_acquire_ctx *ticket,
 
 	INIT_LIST_HEAD(&val_list);
 	list_add_tail(&val_buf->head, &val_list);
-	ttm_eu_backoff_reservation(ticket, &val_list);
+	ttm_eu_backoff_reservation(NULL, &val_list);
 	ttm_bo_unref(&val_buf->bo);
 }
 
@@ -1099,14 +1097,12 @@ int vmw_resource_do_evict(struct vmw_resource *res, bool interruptible)
 {
 	struct ttm_validate_buffer val_buf;
 	const struct vmw_res_func *func = res->func;
-	struct ww_acquire_ctx ticket;
 	int ret;
 
 	BUG_ON(!func->may_evict);
 
 	val_buf.bo = NULL;
-	ret = vmw_resource_check_buffer(res, &ticket, interruptible,
-					&val_buf);
+	ret = vmw_resource_check_buffer(res, interruptible, &val_buf);
 	if (unlikely(ret != 0))
 		return ret;
 
@@ -1121,7 +1117,7 @@ int vmw_resource_do_evict(struct vmw_resource *res, bool interruptible)
 	res->backup_dirty = true;
 	res->res_dirty = false;
 out_no_unbind:
-	vmw_resource_backoff_reservation(&ticket, &val_buf);
+	vmw_resource_backoff_reservation(&val_buf);
 
 	return ret;
 }
-- 
cgit 


From 65981f7681abdf92b25942222b629b9c512d0705 Mon Sep 17 00:00:00 2001
From: Thomas Hellstrom <thellstrom@vmware.com>
Date: Wed, 13 Nov 2013 01:48:31 -0800
Subject: drm/ttm: Add a minimal prime implementation for ttm base objects

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
---
 drivers/gpu/drm/ttm/ttm_object.c | 254 ++++++++++++++++++++++++++++++++++++++-
 include/drm/ttm/ttm_object.h     |  61 +++++++++-
 2 files changed, 307 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/ttm/ttm_object.c b/drivers/gpu/drm/ttm/ttm_object.c
index a868176c258a..6fe7b92a82d1 100644
--- a/drivers/gpu/drm/ttm/ttm_object.c
+++ b/drivers/gpu/drm/ttm/ttm_object.c
@@ -1,6 +1,6 @@
 /**************************************************************************
  *
- * Copyright (c) 2009 VMware, Inc., Palo Alto, CA., USA
+ * Copyright (c) 2009-2013 VMware, Inc., Palo Alto, CA., USA
  * All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
@@ -26,6 +26,12 @@
  **************************************************************************/
 /*
  * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
+ *
+ * While no substantial code is shared, the prime code is inspired by
+ * drm_prime.c, with
+ * Authors:
+ *      Dave Airlie <airlied@redhat.com>
+ *      Rob Clark <rob.clark@linaro.org>
  */
 /** @file ttm_ref_object.c
  *
@@ -34,6 +40,7 @@
  * and release on file close.
  */
 
+
 /**
  * struct ttm_object_file
  *
@@ -84,6 +91,9 @@ struct ttm_object_device {
 	struct drm_open_hash object_hash;
 	atomic_t object_count;
 	struct ttm_mem_global *mem_glob;
+	struct dma_buf_ops ops;
+	void (*dmabuf_release)(struct dma_buf *dma_buf);
+	size_t dma_buf_size;
 };
 
 /**
@@ -116,6 +126,8 @@ struct ttm_ref_object {
 	struct ttm_object_file *tfile;
 };
 
+static void ttm_prime_dmabuf_release(struct dma_buf *dma_buf);
+
 static inline struct ttm_object_file *
 ttm_object_file_ref(struct ttm_object_file *tfile)
 {
@@ -416,9 +428,10 @@ out_err:
 }
 EXPORT_SYMBOL(ttm_object_file_init);
 
-struct ttm_object_device *ttm_object_device_init(struct ttm_mem_global
-						 *mem_glob,
-						 unsigned int hash_order)
+struct ttm_object_device *
+ttm_object_device_init(struct ttm_mem_global *mem_glob,
+		       unsigned int hash_order,
+		       const struct dma_buf_ops *ops)
 {
 	struct ttm_object_device *tdev = kmalloc(sizeof(*tdev), GFP_KERNEL);
 	int ret;
@@ -430,10 +443,17 @@ struct ttm_object_device *ttm_object_device_init(struct ttm_mem_global
 	spin_lock_init(&tdev->object_lock);
 	atomic_set(&tdev->object_count, 0);
 	ret = drm_ht_create(&tdev->object_hash, hash_order);
+	if (ret != 0)
+		goto out_no_object_hash;
 
-	if (likely(ret == 0))
-		return tdev;
+	tdev->ops = *ops;
+	tdev->dmabuf_release = tdev->ops.release;
+	tdev->ops.release = ttm_prime_dmabuf_release;
+	tdev->dma_buf_size = ttm_round_pot(sizeof(struct dma_buf)) +
+		ttm_round_pot(sizeof(struct file));
+	return tdev;
 
+out_no_object_hash:
 	kfree(tdev);
 	return NULL;
 }
@@ -452,3 +472,225 @@ void ttm_object_device_release(struct ttm_object_device **p_tdev)
 	kfree(tdev);
 }
 EXPORT_SYMBOL(ttm_object_device_release);
+
+/**
+ * get_dma_buf_unless_doomed - get a dma_buf reference if possible.
+ *
+ * @dma_buf: Non-refcounted pointer to a struct dma-buf.
+ *
+ * Obtain a file reference from a lookup structure that doesn't refcount
+ * the file, but synchronizes with its release method to make sure it has
+ * not been freed yet. See for example kref_get_unless_zero documentation.
+ * Returns true if refcounting succeeds, false otherwise.
+ *
+ * Nobody really wants this as a public API yet, so let it mature here
+ * for some time...
+ */
+static bool __must_check get_dma_buf_unless_doomed(struct dma_buf *dmabuf)
+{
+	return atomic_long_inc_not_zero(&dmabuf->file->f_count) != 0L;
+}
+
+/**
+ * ttm_prime_refcount_release - refcount release method for a prime object.
+ *
+ * @p_base: Pointer to ttm_base_object pointer.
+ *
+ * This is a wrapper that calls the refcount_release founction of the
+ * underlying object. At the same time it cleans up the prime object.
+ * This function is called when all references to the base object we
+ * derive from are gone.
+ */
+static void ttm_prime_refcount_release(struct ttm_base_object **p_base)
+{
+	struct ttm_base_object *base = *p_base;
+	struct ttm_prime_object *prime;
+
+	*p_base = NULL;
+	prime = container_of(base, struct ttm_prime_object, base);
+	BUG_ON(prime->dma_buf != NULL);
+	mutex_destroy(&prime->mutex);
+	if (prime->refcount_release)
+		prime->refcount_release(&base);
+}
+
+/**
+ * ttm_prime_dmabuf_release - Release method for the dma-bufs we export
+ *
+ * @dma_buf:
+ *
+ * This function first calls the dma_buf release method the driver
+ * provides. Then it cleans up our dma_buf pointer used for lookup,
+ * and finally releases the reference the dma_buf has on our base
+ * object.
+ */
+static void ttm_prime_dmabuf_release(struct dma_buf *dma_buf)
+{
+	struct ttm_prime_object *prime =
+		(struct ttm_prime_object *) dma_buf->priv;
+	struct ttm_base_object *base = &prime->base;
+	struct ttm_object_device *tdev = base->tfile->tdev;
+
+	if (tdev->dmabuf_release)
+		tdev->dmabuf_release(dma_buf);
+	mutex_lock(&prime->mutex);
+	if (prime->dma_buf == dma_buf)
+		prime->dma_buf = NULL;
+	mutex_unlock(&prime->mutex);
+	ttm_mem_global_free(tdev->mem_glob, tdev->dma_buf_size);
+	ttm_base_object_unref(&base);
+}
+
+/**
+ * ttm_prime_fd_to_handle - Get a base object handle from a prime fd
+ *
+ * @tfile: A struct ttm_object_file identifying the caller.
+ * @fd: The prime / dmabuf fd.
+ * @handle: The returned handle.
+ *
+ * This function returns a handle to an object that previously exported
+ * a dma-buf. Note that we don't handle imports yet, because we simply
+ * have no consumers of that implementation.
+ */
+int ttm_prime_fd_to_handle(struct ttm_object_file *tfile,
+			   int fd, u32 *handle)
+{
+	struct ttm_object_device *tdev = tfile->tdev;
+	struct dma_buf *dma_buf;
+	struct ttm_prime_object *prime;
+	struct ttm_base_object *base;
+	int ret;
+
+	dma_buf = dma_buf_get(fd);
+	if (IS_ERR(dma_buf))
+		return PTR_ERR(dma_buf);
+
+	if (dma_buf->ops != &tdev->ops)
+		return -ENOSYS;
+
+	prime = (struct ttm_prime_object *) dma_buf->priv;
+	base = &prime->base;
+	*handle = base->hash.key;
+	ret = ttm_ref_object_add(tfile, base, TTM_REF_USAGE, NULL);
+
+	dma_buf_put(dma_buf);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(ttm_prime_fd_to_handle);
+
+/**
+ * ttm_prime_handle_to_fd - Return a dma_buf fd from a ttm prime object
+ *
+ * @tfile: Struct ttm_object_file identifying the caller.
+ * @handle: Handle to the object we're exporting from.
+ * @flags: flags for dma-buf creation. We just pass them on.
+ * @prime_fd: The returned file descriptor.
+ *
+ */
+int ttm_prime_handle_to_fd(struct ttm_object_file *tfile,
+			   uint32_t handle, uint32_t flags,
+			   int *prime_fd)
+{
+	struct ttm_object_device *tdev = tfile->tdev;
+	struct ttm_base_object *base;
+	struct dma_buf *dma_buf;
+	struct ttm_prime_object *prime;
+	int ret;
+
+	base = ttm_base_object_lookup(tfile, handle);
+	if (unlikely(base == NULL ||
+		     base->object_type != ttm_prime_type)) {
+		ret = -ENOENT;
+		goto out_unref;
+	}
+
+	prime = container_of(base, struct ttm_prime_object, base);
+	if (unlikely(!base->shareable)) {
+		ret = -EPERM;
+		goto out_unref;
+	}
+
+	ret = mutex_lock_interruptible(&prime->mutex);
+	if (unlikely(ret != 0)) {
+		ret = -ERESTARTSYS;
+		goto out_unref;
+	}
+
+	dma_buf = prime->dma_buf;
+	if (!dma_buf || !get_dma_buf_unless_doomed(dma_buf)) {
+
+		/*
+		 * Need to create a new dma_buf, with memory accounting.
+		 */
+		ret = ttm_mem_global_alloc(tdev->mem_glob, tdev->dma_buf_size,
+					   false, true);
+		if (unlikely(ret != 0)) {
+			mutex_unlock(&prime->mutex);
+			goto out_unref;
+		}
+
+		dma_buf = dma_buf_export(prime, &tdev->ops,
+					 prime->size, flags);
+		if (IS_ERR(dma_buf)) {
+			ret = PTR_ERR(dma_buf);
+			ttm_mem_global_free(tdev->mem_glob,
+					    tdev->dma_buf_size);
+			mutex_unlock(&prime->mutex);
+			goto out_unref;
+		}
+
+		/*
+		 * dma_buf has taken the base object reference
+		 */
+		base = NULL;
+		prime->dma_buf = dma_buf;
+	}
+	mutex_unlock(&prime->mutex);
+
+	ret = dma_buf_fd(dma_buf, flags);
+	if (ret >= 0) {
+		*prime_fd = ret;
+		ret = 0;
+	} else
+		dma_buf_put(dma_buf);
+
+out_unref:
+	if (base)
+		ttm_base_object_unref(&base);
+	return ret;
+}
+EXPORT_SYMBOL_GPL(ttm_prime_handle_to_fd);
+
+/**
+ * ttm_prime_object_init - Initialize a ttm_prime_object
+ *
+ * @tfile: struct ttm_object_file identifying the caller
+ * @size: The size of the dma_bufs we export.
+ * @prime: The object to be initialized.
+ * @shareable: See ttm_base_object_init
+ * @type: See ttm_base_object_init
+ * @refcount_release: See ttm_base_object_init
+ * @ref_obj_release: See ttm_base_object_init
+ *
+ * Initializes an object which is compatible with the drm_prime model
+ * for data sharing between processes and devices.
+ */
+int ttm_prime_object_init(struct ttm_object_file *tfile, size_t size,
+			  struct ttm_prime_object *prime, bool shareable,
+			  enum ttm_object_type type,
+			  void (*refcount_release) (struct ttm_base_object **),
+			  void (*ref_obj_release) (struct ttm_base_object *,
+						   enum ttm_ref_type ref_type))
+{
+	mutex_init(&prime->mutex);
+	prime->size = PAGE_ALIGN(size);
+	prime->real_type = type;
+	prime->dma_buf = NULL;
+	prime->refcount_release = refcount_release;
+	return ttm_base_object_init(tfile, &prime->base, shareable,
+				    ttm_prime_type,
+				    ttm_prime_refcount_release,
+				    ref_obj_release);
+}
+EXPORT_SYMBOL(ttm_prime_object_init);
diff --git a/include/drm/ttm/ttm_object.h b/include/drm/ttm/ttm_object.h
index fc0cf0649901..58b029894eb3 100644
--- a/include/drm/ttm/ttm_object.h
+++ b/include/drm/ttm/ttm_object.h
@@ -41,6 +41,7 @@
 #include <drm/drm_hashtab.h>
 #include <linux/kref.h>
 #include <linux/rcupdate.h>
+#include <linux/dma-buf.h>
 #include <ttm/ttm_memory.h>
 
 /**
@@ -77,6 +78,7 @@ enum ttm_object_type {
 	ttm_fence_type,
 	ttm_buffer_type,
 	ttm_lock_type,
+	ttm_prime_type,
 	ttm_driver_type0 = 256,
 	ttm_driver_type1,
 	ttm_driver_type2,
@@ -132,6 +134,30 @@ struct ttm_base_object {
 				 enum ttm_ref_type ref_type);
 };
 
+
+/**
+ * struct ttm_prime_object - Modified base object that is prime-aware
+ *
+ * @base: struct ttm_base_object that we derive from
+ * @mutex: Mutex protecting the @dma_buf member.
+ * @size: Size of the dma_buf associated with this object
+ * @real_type: Type of the underlying object. Needed since we're setting
+ * the value of @base::object_type to ttm_prime_type
+ * @dma_buf: Non ref-coutned pointer to a struct dma_buf created from this
+ * object.
+ * @refcount_release: The underlying object's release method. Needed since
+ * we set @base::refcount_release to our own release method.
+ */
+
+struct ttm_prime_object {
+	struct ttm_base_object base;
+	struct mutex mutex;
+	size_t size;
+	enum ttm_object_type real_type;
+	struct dma_buf *dma_buf;
+	void (*refcount_release) (struct ttm_base_object **);
+};
+
 /**
  * ttm_base_object_init
  *
@@ -248,14 +274,18 @@ extern void ttm_object_file_release(struct ttm_object_file **p_tfile);
 /**
  * ttm_object device init - initialize a struct ttm_object_device
  *
+ * @mem_glob: struct ttm_mem_global for memory accounting.
  * @hash_order: Order of hash table used to hash the base objects.
+ * @ops: DMA buf ops for prime objects of this device.
  *
  * This function is typically called on device initialization to prepare
  * data structures needed for ttm base and ref objects.
  */
 
-extern struct ttm_object_device *ttm_object_device_init
-    (struct ttm_mem_global *mem_glob, unsigned int hash_order);
+extern struct ttm_object_device *
+ttm_object_device_init(struct ttm_mem_global *mem_glob,
+		       unsigned int hash_order,
+		       const struct dma_buf_ops *ops);
 
 /**
  * ttm_object_device_release - release data held by a ttm_object_device
@@ -272,4 +302,31 @@ extern void ttm_object_device_release(struct ttm_object_device **p_tdev);
 
 #define ttm_base_object_kfree(__object, __base)\
 	kfree_rcu(__object, __base.rhead)
+
+extern int ttm_prime_object_init(struct ttm_object_file *tfile,
+				 size_t size,
+				 struct ttm_prime_object *prime,
+				 bool shareable,
+				 enum ttm_object_type type,
+				 void (*refcount_release)
+				 (struct ttm_base_object **),
+				 void (*ref_obj_release)
+				 (struct ttm_base_object *,
+				  enum ttm_ref_type ref_type));
+
+static inline enum ttm_object_type
+ttm_base_object_type(struct ttm_base_object *base)
+{
+	return (base->object_type == ttm_prime_type) ?
+		container_of(base, struct ttm_prime_object, base)->real_type :
+		base->object_type;
+}
+extern int ttm_prime_fd_to_handle(struct ttm_object_file *tfile,
+				  int fd, u32 *handle);
+extern int ttm_prime_handle_to_fd(struct ttm_object_file *tfile,
+				  uint32_t handle, uint32_t flags,
+				  int *prime_fd);
+
+#define ttm_prime_object_kfree(__obj, __prime)		\
+	kfree_rcu(__obj, __prime.base.rhead)
 #endif
-- 
cgit 


From 6020779b118f6221e5d067bd1e6b44bab6fc0276 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Sun, 10 Nov 2013 17:00:42 -0800
Subject: ASoC: rcar: fixup mod access before checking

rsnd_dai_connect() is using mod before NULL checking.
This patch fixes it up

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/sh/rcar/core.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index b234ed663073..2e09ee8d2500 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -279,15 +279,13 @@ int rsnd_dai_connect(struct rsnd_dai *rdai,
 		     struct rsnd_mod *mod,
 		     struct rsnd_dai_stream *io)
 {
-	struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
-	struct device *dev = rsnd_priv_to_dev(priv);
-
-	if (!mod) {
-		dev_err(dev, "NULL mod\n");
+	if (!mod)
 		return -EIO;
-	}
 
 	if (!list_empty(&mod->list)) {
+		struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
+		struct device *dev = rsnd_priv_to_dev(priv);
+
 		dev_err(dev, "%s%d is not empty\n",
 			rsnd_mod_name(mod),
 			rsnd_mod_id(mod));
-- 
cgit 


From e322ce9365693b417867f6bd700ddf09cca36b37 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Fri, 15 Nov 2013 15:50:31 +0800
Subject: spi: spi-mxs: fix reference leak to master in mxs_spi_remove()

Once a spi_master_get() call succeeds, we need an additional
spi_master_put() call to free the memory, otherwise we will
leak a reference to master. Fix by removing the unnecessary
spi_master_get() call.

Fixes: 33e195acf268 ('spi: mxs: use devm_spi_register_master()')
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-mxs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-mxs.c b/drivers/spi/spi-mxs.c
index de333059a9a7..37b3e41bf46f 100644
--- a/drivers/spi/spi-mxs.c
+++ b/drivers/spi/spi-mxs.c
@@ -565,7 +565,7 @@ static int mxs_spi_remove(struct platform_device *pdev)
 	struct mxs_spi *spi;
 	struct mxs_ssp *ssp;
 
-	master = spi_master_get(platform_get_drvdata(pdev));
+	master = platform_get_drvdata(pdev);
 	spi = spi_master_get_devdata(master);
 	ssp = &spi->ssp;
 
-- 
cgit 


From a6441b7a39f18acb68c83cd738f1310881aa8a0b Mon Sep 17 00:00:00 2001
From: Martin Topholm <mph@one.com>
Date: Thu, 14 Nov 2013 15:35:30 +0100
Subject: netfilter: synproxy: send mss option to backend

When the synproxy_parse_options is called on the client ack the mss
option will not be present. Consequently mss wont be included in the
backend syn packet, which falls back to 536 bytes mss.

Therefore XT_SYNPROXY_OPT_MSS is explicitly flagged when recovering mss
value from cookie.

Signed-off-by: Martin Topholm <mph@one.com>
Reviewed-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/ipv4/netfilter/ipt_SYNPROXY.c  | 1 +
 net/ipv6/netfilter/ip6t_SYNPROXY.c | 1 +
 2 files changed, 2 insertions(+)

diff --git a/net/ipv4/netfilter/ipt_SYNPROXY.c b/net/ipv4/netfilter/ipt_SYNPROXY.c
index 01cffeaa0085..f13bd91d9a56 100644
--- a/net/ipv4/netfilter/ipt_SYNPROXY.c
+++ b/net/ipv4/netfilter/ipt_SYNPROXY.c
@@ -244,6 +244,7 @@ synproxy_recv_client_ack(const struct synproxy_net *snet,
 
 	this_cpu_inc(snet->stats->cookie_valid);
 	opts->mss = mss;
+	opts->options |= XT_SYNPROXY_OPT_MSS;
 
 	if (opts->options & XT_SYNPROXY_OPT_TIMESTAMP)
 		synproxy_check_timestamp_cookie(opts);
diff --git a/net/ipv6/netfilter/ip6t_SYNPROXY.c b/net/ipv6/netfilter/ip6t_SYNPROXY.c
index bf9f612c1bc2..f78f41aca8e9 100644
--- a/net/ipv6/netfilter/ip6t_SYNPROXY.c
+++ b/net/ipv6/netfilter/ip6t_SYNPROXY.c
@@ -259,6 +259,7 @@ synproxy_recv_client_ack(const struct synproxy_net *snet,
 
 	this_cpu_inc(snet->stats->cookie_valid);
 	opts->mss = mss;
+	opts->options |= XT_SYNPROXY_OPT_MSS;
 
 	if (opts->options & XT_SYNPROXY_OPT_TIMESTAMP)
 		synproxy_check_timestamp_cookie(opts);
-- 
cgit 


From c1898c4c295b735c05af4c09664993fd8f257c2b Mon Sep 17 00:00:00 2001
From: Martin Topholm <mph@one.com>
Date: Thu, 14 Nov 2013 15:35:31 +0100
Subject: netfilter: synproxy: correct wscale option passing

Timestamp are used to store additional syncookie parameters such as sack,
ecn, and wscale. The wscale value we need to encode is the client's
wscale, since we can't recover that later in the session. Next overwrite
the wscale option so the later synproxy_send_client_synack will send
the backend's wscale to the client.

Signed-off-by: Martin Topholm <mph@one.com>
Reviewed-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nf_synproxy_core.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/net/netfilter/nf_synproxy_core.c b/net/netfilter/nf_synproxy_core.c
index cdf4567ba9b3..9858e3e51a3a 100644
--- a/net/netfilter/nf_synproxy_core.c
+++ b/net/netfilter/nf_synproxy_core.c
@@ -151,9 +151,10 @@ void synproxy_init_timestamp_cookie(const struct xt_synproxy_info *info,
 	opts->tsecr = opts->tsval;
 	opts->tsval = tcp_time_stamp & ~0x3f;
 
-	if (opts->options & XT_SYNPROXY_OPT_WSCALE)
-		opts->tsval |= info->wscale;
-	else
+	if (opts->options & XT_SYNPROXY_OPT_WSCALE) {
+		opts->tsval |= opts->wscale;
+		opts->wscale = info->wscale;
+	} else
 		opts->tsval |= 0xf;
 
 	if (opts->options & XT_SYNPROXY_OPT_SACK_PERM)
-- 
cgit 


From 23dfe136e2bf8d9ea1095704c535368a9bc721da Mon Sep 17 00:00:00 2001
From: Phil Oester <kernel@linuxace.com>
Date: Sat, 16 Nov 2013 20:37:46 -0800
Subject: netfilter: fix wrong byte order in nf_ct_seqadj_set internal
 information

In commit 41d73ec053d2, sequence number adjustments were moved to a
separate file. Unfortunately, the sequence numbers that are stored
in the nf_ct_seqadj structure are expressed in host byte order. The
necessary ntohl call was removed when the call to adjust_tcp_sequence
was collapsed into nf_ct_seqadj_set. This broke the FTP NAT helper.
Fix it by adding back the byte order conversions.

Reported-by: Dawid Stawiarski <dawid.stawiarski@netart.pl>
Signed-off-by: Phil Oester <kernel@linuxace.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nf_conntrack_seqadj.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/nf_conntrack_seqadj.c b/net/netfilter/nf_conntrack_seqadj.c
index 5f9bfd060dea..17c1bcb182c6 100644
--- a/net/netfilter/nf_conntrack_seqadj.c
+++ b/net/netfilter/nf_conntrack_seqadj.c
@@ -41,8 +41,8 @@ int nf_ct_seqadj_set(struct nf_conn *ct, enum ip_conntrack_info ctinfo,
 	spin_lock_bh(&ct->lock);
 	this_way = &seqadj->seq[dir];
 	if (this_way->offset_before == this_way->offset_after ||
-	    before(this_way->correction_pos, seq)) {
-		this_way->correction_pos = seq;
+	    before(this_way->correction_pos, ntohl(seq))) {
+		this_way->correction_pos = ntohl(seq);
 		this_way->offset_before	 = this_way->offset_after;
 		this_way->offset_after	+= off;
 	}
-- 
cgit 


From 8691a9a3382f17fbf1ed808c956672c70369a2e0 Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Sat, 16 Nov 2013 22:16:47 +0100
Subject: netfilter: nft_compat: fix error path in nft_parse_compat()

The patch 0ca743a55991: "netfilter: nf_tables: add compatibility
layer for x_tables", leads to the following Smatch

 warning: "net/netfilter/nft_compat.c:140 nft_parse_compat()
          warn: signedness bug returning '(-34)'"

This nft_parse_compat function returns error codes but the return
type is u8 so the error codes are transformed into small positive
values. The callers don't check the return.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nft_compat.c | 19 +++++++++++++------
 1 file changed, 13 insertions(+), 6 deletions(-)

diff --git a/net/netfilter/nft_compat.c b/net/netfilter/nft_compat.c
index a82667c64729..da0c1f4ada12 100644
--- a/net/netfilter/nft_compat.c
+++ b/net/netfilter/nft_compat.c
@@ -128,7 +128,7 @@ static const struct nla_policy nft_rule_compat_policy[NFTA_RULE_COMPAT_MAX + 1]
 	[NFTA_RULE_COMPAT_FLAGS]	= { .type = NLA_U32 },
 };
 
-static u8 nft_parse_compat(const struct nlattr *attr, bool *inv)
+static int nft_parse_compat(const struct nlattr *attr, u8 *proto, bool *inv)
 {
 	struct nlattr *tb[NFTA_RULE_COMPAT_MAX+1];
 	u32 flags;
@@ -148,7 +148,8 @@ static u8 nft_parse_compat(const struct nlattr *attr, bool *inv)
 	if (flags & NFT_RULE_COMPAT_F_INV)
 		*inv = true;
 
-	return ntohl(nla_get_be32(tb[NFTA_RULE_COMPAT_PROTO]));
+	*proto = ntohl(nla_get_be32(tb[NFTA_RULE_COMPAT_PROTO]));
+	return 0;
 }
 
 static int
@@ -166,8 +167,11 @@ nft_target_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
 
 	target_compat_from_user(target, nla_data(tb[NFTA_TARGET_INFO]), info);
 
-	if (ctx->nla[NFTA_RULE_COMPAT])
-		proto = nft_parse_compat(ctx->nla[NFTA_RULE_COMPAT], &inv);
+	if (ctx->nla[NFTA_RULE_COMPAT]) {
+		ret = nft_parse_compat(ctx->nla[NFTA_RULE_COMPAT], &proto, &inv);
+		if (ret < 0)
+			goto err;
+	}
 
 	nft_target_set_tgchk_param(&par, ctx, target, info, &e, proto, inv);
 
@@ -356,8 +360,11 @@ nft_match_init(const struct nft_ctx *ctx, const struct nft_expr *expr,
 
 	match_compat_from_user(match, nla_data(tb[NFTA_MATCH_INFO]), info);
 
-	if (ctx->nla[NFTA_RULE_COMPAT])
-		proto = nft_parse_compat(ctx->nla[NFTA_RULE_COMPAT], &inv);
+	if (ctx->nla[NFTA_RULE_COMPAT]) {
+		ret = nft_parse_compat(ctx->nla[NFTA_RULE_COMPAT], &proto, &inv);
+		if (ret < 0)
+			goto err;
+	}
 
 	nft_match_set_mtchk_param(&par, ctx, match, info, &e, proto, inv);
 
-- 
cgit 


From 2793769f4450d9e4845257c953ae278ecdff7d94 Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Mon, 18 Nov 2013 11:51:47 +0100
Subject: ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with Realtek
 codec

We're using the ACPI interface to detect whether we're dealing with a Thinkpad
or not. This way we're not loading the thinkpad_acpi module when we're not on
a Thinkpad, but at the same time, we give the opportunity to check for, and
potentially enable, both present and future Thinkpad with mute/micmute LEDs.

At least those running the ALC269 family (269 to 299) of Realtek codecs.

Cc: Alex Hung <alex.hung@canonical.com>
Tested-by: Hui Wang <hui.wang@canonical.com>
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 29 ++++++++++++++++++++++++++---
 1 file changed, 26 insertions(+), 3 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 04d1e6be600e..05987ffb59d0 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3652,9 +3652,29 @@ static void alc290_fixup_mono_speakers(struct hda_codec *codec,
 #if IS_ENABLED(CONFIG_THINKPAD_ACPI)
 
 #include <linux/thinkpad_acpi.h>
+#include <acpi/acpi.h>
 
 static int (*led_set_func)(int, bool);
 
+static acpi_status acpi_check_cb(acpi_handle handle, u32 lvl, void *context,
+				 void **rv)
+{
+	bool *found = context;
+	*found = true;
+	return AE_OK;
+}
+
+static bool is_thinkpad(struct hda_codec *codec)
+{
+	bool found = false;
+	if (codec->subsystem_id >> 16 != 0x17aa)
+		return false;
+	if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb, &found, NULL)) && found)
+		return true;
+	found = false;
+	return ACPI_SUCCESS(acpi_get_devices("IBM0068", acpi_check_cb, &found, NULL)) && found;
+}
+
 static void update_tpacpi_mute_led(void *private_data, int enabled)
 {
 	if (led_set_func)
@@ -3680,6 +3700,8 @@ static void alc_fixup_thinkpad_acpi(struct hda_codec *codec,
 	bool removefunc = false;
 
 	if (action == HDA_FIXUP_ACT_PROBE) {
+		if (!is_thinkpad(codec))
+			return;
 		if (!led_set_func)
 			led_set_func = symbol_request(tpacpi_led_set);
 		if (!led_set_func) {
@@ -4027,6 +4049,8 @@ static const struct hda_fixup alc269_fixups[] = {
 	[ALC269_FIXUP_LIMIT_INT_MIC_BOOST] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc269_fixup_limit_int_mic_boost,
+		.chained = true,
+		.chain_id = ALC269_FIXUP_THINKPAD_ACPI,
 	},
 	[ALC269_FIXUP_LIMIT_INT_MIC_BOOST_MUTE_LED] = {
 		.type = HDA_FIXUP_FUNC,
@@ -4070,8 +4094,6 @@ static const struct hda_fixup alc269_fixups[] = {
 	[ALC269_FIXUP_THINKPAD_ACPI] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc_fixup_thinkpad_acpi,
-		.chained = true,
-		.chain_id = ALC269_FIXUP_LIMIT_INT_MIC_BOOST
 	},
 	[ALC255_FIXUP_DELL1_MIC_NO_PRESENCE] = {
 		.type = HDA_FIXUP_PINS,
@@ -4173,7 +4195,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x17aa, 0x2208, "Thinkpad T431s", ALC269_FIXUP_LENOVO_DOCK),
 	SND_PCI_QUIRK(0x17aa, 0x220c, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
 	SND_PCI_QUIRK(0x17aa, 0x2212, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
-	SND_PCI_QUIRK(0x17aa, 0x2214, "Thinkpad", ALC269_FIXUP_THINKPAD_ACPI),
+	SND_PCI_QUIRK(0x17aa, 0x2214, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
 	SND_PCI_QUIRK(0x17aa, 0x2215, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
 	SND_PCI_QUIRK(0x17aa, 0x5013, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
 	SND_PCI_QUIRK(0x17aa, 0x501a, "Thinkpad", ALC283_FIXUP_INT_MIC),
@@ -4181,6 +4203,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x17aa, 0x5109, "Thinkpad", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
 	SND_PCI_QUIRK(0x17aa, 0x3bf8, "Quanta FL1", ALC269_FIXUP_PCM_44K),
 	SND_PCI_QUIRK(0x17aa, 0x9e54, "LENOVO NB", ALC269_FIXUP_LENOVO_EAPD),
+	SND_PCI_QUIRK_VENDOR(0x17aa, "Thinkpad", ALC269_FIXUP_THINKPAD_ACPI),
 	SND_PCI_QUIRK(0x1b7d, 0xa831, "Ordissimo EVE2 ", ALC269VB_FIXUP_ORDISSIMO_EVE2), /* Also known as Malata PC-B1303 */
 
 #if 0
-- 
cgit 


From 69977ff55eac7fc26fb78de5ec1d9a9ab802d9fd Mon Sep 17 00:00:00 2001
From: Thomas Hellstrom <thellstrom@vmware.com>
Date: Wed, 13 Nov 2013 01:50:46 -0800
Subject: drm/vmwgfx: Hook up the prime ioctls

Also provide a completely dumb dma-buf ops implementation.
Once we have other virtual dma-buf aware devices, we need to provide
something better.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
---
 drivers/gpu/drm/vmwgfx/Makefile       |   2 +-
 drivers/gpu/drm/vmwgfx/vmwgfx_drv.c   |   7 +-
 drivers/gpu/drm/vmwgfx/vmwgfx_drv.h   |  14 ++++
 drivers/gpu/drm/vmwgfx/vmwgfx_prime.c | 137 ++++++++++++++++++++++++++++++++++
 4 files changed, 157 insertions(+), 3 deletions(-)
 create mode 100644 drivers/gpu/drm/vmwgfx/vmwgfx_prime.c

diff --git a/drivers/gpu/drm/vmwgfx/Makefile b/drivers/gpu/drm/vmwgfx/Makefile
index 2cc6cd91ac11..9f8b690bcf52 100644
--- a/drivers/gpu/drm/vmwgfx/Makefile
+++ b/drivers/gpu/drm/vmwgfx/Makefile
@@ -6,6 +6,6 @@ vmwgfx-y := vmwgfx_execbuf.o vmwgfx_gmr.o vmwgfx_kms.o vmwgfx_drv.o \
 	    vmwgfx_fifo.o vmwgfx_irq.o vmwgfx_ldu.o vmwgfx_ttm_glue.o \
 	    vmwgfx_overlay.o vmwgfx_marker.o vmwgfx_gmrid_manager.o \
 	    vmwgfx_fence.o vmwgfx_dmabuf.o vmwgfx_scrn.o vmwgfx_context.o \
-	    vmwgfx_surface.o
+	    vmwgfx_surface.o vmwgfx_prime.o
 
 obj-$(CONFIG_DRM_VMWGFX) := vmwgfx.o
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 20d5485eaf98..c7a549694e59 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -677,7 +677,7 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
 	}
 
 	dev_priv->tdev = ttm_object_device_init
-	    (dev_priv->mem_global_ref.object, 12);
+		(dev_priv->mem_global_ref.object, 12, &vmw_prime_dmabuf_ops);
 
 	if (unlikely(dev_priv->tdev == NULL)) {
 		DRM_ERROR("Unable to initialize TTM object management.\n");
@@ -1210,7 +1210,7 @@ static const struct file_operations vmwgfx_driver_fops = {
 
 static struct drm_driver driver = {
 	.driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
-	DRIVER_MODESET,
+	DRIVER_MODESET | DRIVER_PRIME,
 	.load = vmw_driver_load,
 	.unload = vmw_driver_unload,
 	.lastclose = vmw_lastclose,
@@ -1235,6 +1235,9 @@ static struct drm_driver driver = {
 	.dumb_map_offset = vmw_dumb_map_offset,
 	.dumb_destroy = vmw_dumb_destroy,
 
+	.prime_fd_to_handle = vmw_prime_fd_to_handle,
+	.prime_handle_to_fd = vmw_prime_handle_to_fd,
+
 	.fops = &vmwgfx_driver_fops,
 	.name = VMWGFX_DRIVER_NAME,
 	.desc = VMWGFX_DRIVER_DESC,
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
index e401d5dbcb96..db85985c7086 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h
@@ -818,6 +818,20 @@ int vmw_overlay_num_free_overlays(struct vmw_private *dev_priv);
 
 extern const struct ttm_mem_type_manager_func vmw_gmrid_manager_func;
 
+/**
+ * Prime - vmwgfx_prime.c
+ */
+
+extern const struct dma_buf_ops vmw_prime_dmabuf_ops;
+extern int vmw_prime_fd_to_handle(struct drm_device *dev,
+				  struct drm_file *file_priv,
+				  int fd, u32 *handle);
+extern int vmw_prime_handle_to_fd(struct drm_device *dev,
+				  struct drm_file *file_priv,
+				  uint32_t handle, uint32_t flags,
+				  int *prime_fd);
+
+
 /**
  * Inline helper functions
  */
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c b/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c
new file mode 100644
index 000000000000..31fe32d8d65a
--- /dev/null
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c
@@ -0,0 +1,137 @@
+/**************************************************************************
+ *
+ * Copyright © 2013 VMware, Inc., Palo Alto, CA., USA
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+/*
+ * Authors:
+ *     Thomas Hellstrom <thellstrom@vmware.com>
+ *
+ */
+
+#include "vmwgfx_drv.h"
+#include <linux/dma-buf.h>
+#include <drm/ttm/ttm_object.h>
+
+/*
+ * DMA-BUF attach- and mapping methods. No need to implement
+ * these until we have other virtual devices use them.
+ */
+
+static int vmw_prime_map_attach(struct dma_buf *dma_buf,
+				struct device *target_dev,
+				struct dma_buf_attachment *attach)
+{
+	return -ENOSYS;
+}
+
+static void vmw_prime_map_detach(struct dma_buf *dma_buf,
+				 struct dma_buf_attachment *attach)
+{
+}
+
+static struct sg_table *vmw_prime_map_dma_buf(struct dma_buf_attachment *attach,
+					      enum dma_data_direction dir)
+{
+	return ERR_PTR(-ENOSYS);
+}
+
+static void vmw_prime_unmap_dma_buf(struct dma_buf_attachment *attach,
+				    struct sg_table *sgb,
+				    enum dma_data_direction dir)
+{
+}
+
+static void *vmw_prime_dmabuf_vmap(struct dma_buf *dma_buf)
+{
+	return NULL;
+}
+
+static void vmw_prime_dmabuf_vunmap(struct dma_buf *dma_buf, void *vaddr)
+{
+}
+
+static void *vmw_prime_dmabuf_kmap_atomic(struct dma_buf *dma_buf,
+		unsigned long page_num)
+{
+	return NULL;
+}
+
+static void vmw_prime_dmabuf_kunmap_atomic(struct dma_buf *dma_buf,
+		unsigned long page_num, void *addr)
+{
+
+}
+static void *vmw_prime_dmabuf_kmap(struct dma_buf *dma_buf,
+		unsigned long page_num)
+{
+	return NULL;
+}
+
+static void vmw_prime_dmabuf_kunmap(struct dma_buf *dma_buf,
+		unsigned long page_num, void *addr)
+{
+
+}
+
+static int vmw_prime_dmabuf_mmap(struct dma_buf *dma_buf,
+				 struct vm_area_struct *vma)
+{
+	WARN_ONCE(true, "Attempted use of dmabuf mmap. Bad.\n");
+	return -ENOSYS;
+}
+
+const struct dma_buf_ops vmw_prime_dmabuf_ops =  {
+	.attach = vmw_prime_map_attach,
+	.detach = vmw_prime_map_detach,
+	.map_dma_buf = vmw_prime_map_dma_buf,
+	.unmap_dma_buf = vmw_prime_unmap_dma_buf,
+	.release = NULL,
+	.kmap = vmw_prime_dmabuf_kmap,
+	.kmap_atomic = vmw_prime_dmabuf_kmap_atomic,
+	.kunmap = vmw_prime_dmabuf_kunmap,
+	.kunmap_atomic = vmw_prime_dmabuf_kunmap_atomic,
+	.mmap = vmw_prime_dmabuf_mmap,
+	.vmap = vmw_prime_dmabuf_vmap,
+	.vunmap = vmw_prime_dmabuf_vunmap,
+};
+
+int vmw_prime_fd_to_handle(struct drm_device *dev,
+			   struct drm_file *file_priv,
+			   int fd, u32 *handle)
+{
+	struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
+
+	return ttm_prime_fd_to_handle(tfile, fd, handle);
+}
+
+int vmw_prime_handle_to_fd(struct drm_device *dev,
+			   struct drm_file *file_priv,
+			   uint32_t handle, uint32_t flags,
+			   int *prime_fd)
+{
+	struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
+
+	return ttm_prime_handle_to_fd(tfile, handle, flags, prime_fd);
+}
-- 
cgit 


From 79e5f810032cd166bc71580ca01401ff212688ed Mon Sep 17 00:00:00 2001
From: Thomas Hellstrom <thellstrom@vmware.com>
Date: Fri, 8 Nov 2013 02:12:51 -0800
Subject: drm/vmwgfx: Make surfaces prime-aware

Add prime exporting and imporing operations to surfaces

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
---
 drivers/gpu/drm/vmwgfx/vmwgfx_resource.c |  2 +-
 drivers/gpu/drm/vmwgfx/vmwgfx_surface.c  | 30 ++++++++++++++++--------------
 2 files changed, 17 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
index 5aace8081eef..83be7093c715 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
@@ -297,7 +297,7 @@ int vmw_user_resource_lookup_handle(struct vmw_private *dev_priv,
 	if (unlikely(base == NULL))
 		return -EINVAL;
 
-	if (unlikely(base->object_type != converter->object_type))
+	if (unlikely(ttm_base_object_type(base) != converter->object_type))
 		goto out_bad_resource;
 
 	res = converter->base_obj_to_res(base);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
index 582814339748..7de2ea8bd553 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_surface.c
@@ -38,7 +38,7 @@
  * @size:           TTM accounting size for the surface.
  */
 struct vmw_user_surface {
-	struct ttm_base_object base;
+	struct ttm_prime_object prime;
 	struct vmw_surface srf;
 	uint32_t size;
 	uint32_t backup_handle;
@@ -580,7 +580,8 @@ static int vmw_surface_init(struct vmw_private *dev_priv,
 static struct vmw_resource *
 vmw_user_surface_base_to_res(struct ttm_base_object *base)
 {
-	return &(container_of(base, struct vmw_user_surface, base)->srf.res);
+	return &(container_of(base, struct vmw_user_surface,
+			      prime.base)->srf.res);
 }
 
 /**
@@ -599,7 +600,7 @@ static void vmw_user_surface_free(struct vmw_resource *res)
 	kfree(srf->offsets);
 	kfree(srf->sizes);
 	kfree(srf->snooper.image);
-	ttm_base_object_kfree(user_srf, base);
+	ttm_prime_object_kfree(user_srf, prime);
 	ttm_mem_global_free(vmw_mem_glob(dev_priv), size);
 }
 
@@ -616,7 +617,7 @@ static void vmw_user_surface_base_release(struct ttm_base_object **p_base)
 {
 	struct ttm_base_object *base = *p_base;
 	struct vmw_user_surface *user_srf =
-	    container_of(base, struct vmw_user_surface, base);
+	    container_of(base, struct vmw_user_surface, prime.base);
 	struct vmw_resource *res = &user_srf->srf.res;
 
 	*p_base = NULL;
@@ -790,8 +791,8 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
 	}
 	srf->snooper.crtc = NULL;
 
-	user_srf->base.shareable = false;
-	user_srf->base.tfile = NULL;
+	user_srf->prime.base.shareable = false;
+	user_srf->prime.base.tfile = NULL;
 
 	/**
 	 * From this point, the generic resource management functions
@@ -803,9 +804,9 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
 		goto out_unlock;
 
 	tmp = vmw_resource_reference(&srf->res);
-	ret = ttm_base_object_init(tfile, &user_srf->base,
-				   req->shareable, VMW_RES_SURFACE,
-				   &vmw_user_surface_base_release, NULL);
+	ret = ttm_prime_object_init(tfile, res->backup_size, &user_srf->prime,
+				    req->shareable, VMW_RES_SURFACE,
+				    &vmw_user_surface_base_release, NULL);
 
 	if (unlikely(ret != 0)) {
 		vmw_resource_unreference(&tmp);
@@ -813,7 +814,7 @@ int vmw_surface_define_ioctl(struct drm_device *dev, void *data,
 		goto out_unlock;
 	}
 
-	rep->sid = user_srf->base.hash.key;
+	rep->sid = user_srf->prime.base.hash.key;
 	vmw_resource_unreference(&res);
 
 	ttm_read_unlock(&vmaster->lock);
@@ -823,7 +824,7 @@ out_no_copy:
 out_no_offsets:
 	kfree(srf->sizes);
 out_no_sizes:
-	ttm_base_object_kfree(user_srf, base);
+	ttm_prime_object_kfree(user_srf, prime);
 out_no_user_srf:
 	ttm_mem_global_free(vmw_mem_glob(dev_priv), size);
 out_unlock:
@@ -859,13 +860,14 @@ int vmw_surface_reference_ioctl(struct drm_device *dev, void *data,
 		return -EINVAL;
 	}
 
-	if (unlikely(base->object_type != VMW_RES_SURFACE))
+	if (unlikely(ttm_base_object_type(base) != VMW_RES_SURFACE))
 		goto out_bad_resource;
 
-	user_srf = container_of(base, struct vmw_user_surface, base);
+	user_srf = container_of(base, struct vmw_user_surface, prime.base);
 	srf = &user_srf->srf;
 
-	ret = ttm_ref_object_add(tfile, &user_srf->base, TTM_REF_USAGE, NULL);
+	ret = ttm_ref_object_add(tfile, &user_srf->prime.base,
+				 TTM_REF_USAGE, NULL);
 	if (unlikely(ret != 0)) {
 		DRM_ERROR("Could not add a reference to a surface.\n");
 		goto out_no_reference;
-- 
cgit 


From c486d4f894d7c7d0e4148426360aa354384f6dc8 Mon Sep 17 00:00:00 2001
From: Thomas Hellstrom <thellstrom@vmware.com>
Date: Fri, 8 Nov 2013 02:30:50 -0800
Subject: drm/vmwgfx: Make vmwgfx dma buffers prime aware

Should we need to share dma buffers using prime, let's make them prime
aware.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
---
 drivers/gpu/drm/vmwgfx/vmwgfx_resource.c | 45 ++++++++++++++++++--------------
 1 file changed, 25 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
index 83be7093c715..efe2b74c5eb1 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
@@ -35,7 +35,7 @@
 #define VMW_RES_EVICT_ERR_COUNT 10
 
 struct vmw_user_dma_buffer {
-	struct ttm_base_object base;
+	struct ttm_prime_object prime;
 	struct vmw_dma_buffer dma;
 };
 
@@ -387,7 +387,7 @@ static void vmw_user_dmabuf_destroy(struct ttm_buffer_object *bo)
 {
 	struct vmw_user_dma_buffer *vmw_user_bo = vmw_user_dma_buffer(bo);
 
-	ttm_base_object_kfree(vmw_user_bo, base);
+	ttm_prime_object_kfree(vmw_user_bo, prime);
 }
 
 static void vmw_user_dmabuf_release(struct ttm_base_object **p_base)
@@ -401,7 +401,8 @@ static void vmw_user_dmabuf_release(struct ttm_base_object **p_base)
 	if (unlikely(base == NULL))
 		return;
 
-	vmw_user_bo = container_of(base, struct vmw_user_dma_buffer, base);
+	vmw_user_bo = container_of(base, struct vmw_user_dma_buffer,
+				   prime.base);
 	bo = &vmw_user_bo->dma.base;
 	ttm_bo_unref(&bo);
 }
@@ -442,18 +443,19 @@ int vmw_user_dmabuf_alloc(struct vmw_private *dev_priv,
 		return ret;
 
 	tmp = ttm_bo_reference(&user_bo->dma.base);
-	ret = ttm_base_object_init(tfile,
-				   &user_bo->base,
-				   shareable,
-				   ttm_buffer_type,
-				   &vmw_user_dmabuf_release, NULL);
+	ret = ttm_prime_object_init(tfile,
+				    size,
+				    &user_bo->prime,
+				    shareable,
+				    ttm_buffer_type,
+				    &vmw_user_dmabuf_release, NULL);
 	if (unlikely(ret != 0)) {
 		ttm_bo_unref(&tmp);
 		goto out_no_base_object;
 	}
 
 	*p_dma_buf = &user_bo->dma;
-	*handle = user_bo->base.hash.key;
+	*handle = user_bo->prime.base.hash.key;
 
 out_no_base_object:
 	return ret;
@@ -475,8 +477,8 @@ int vmw_user_dmabuf_verify_access(struct ttm_buffer_object *bo,
 		return -EPERM;
 
 	vmw_user_bo = vmw_user_dma_buffer(bo);
-	return (vmw_user_bo->base.tfile == tfile ||
-	vmw_user_bo->base.shareable) ? 0 : -EPERM;
+	return (vmw_user_bo->prime.base.tfile == tfile ||
+		vmw_user_bo->prime.base.shareable) ? 0 : -EPERM;
 }
 
 int vmw_dmabuf_alloc_ioctl(struct drm_device *dev, void *data,
@@ -538,14 +540,15 @@ int vmw_user_dmabuf_lookup(struct ttm_object_file *tfile,
 		return -ESRCH;
 	}
 
-	if (unlikely(base->object_type != ttm_buffer_type)) {
+	if (unlikely(ttm_base_object_type(base) != ttm_buffer_type)) {
 		ttm_base_object_unref(&base);
 		printk(KERN_ERR "Invalid buffer object handle 0x%08lx.\n",
 		       (unsigned long)handle);
 		return -EINVAL;
 	}
 
-	vmw_user_bo = container_of(base, struct vmw_user_dma_buffer, base);
+	vmw_user_bo = container_of(base, struct vmw_user_dma_buffer,
+				   prime.base);
 	(void)ttm_bo_reference(&vmw_user_bo->dma.base);
 	ttm_base_object_unref(&base);
 	*out = &vmw_user_bo->dma;
@@ -562,7 +565,8 @@ int vmw_user_dmabuf_reference(struct ttm_object_file *tfile,
 		return -EINVAL;
 
 	user_bo = container_of(dma_buf, struct vmw_user_dma_buffer, dma);
-	return ttm_ref_object_add(tfile, &user_bo->base, TTM_REF_USAGE, NULL);
+	return ttm_ref_object_add(tfile, &user_bo->prime.base,
+				  TTM_REF_USAGE, NULL);
 }
 
 /*
@@ -807,15 +811,16 @@ int vmw_dumb_create(struct drm_file *file_priv,
 		goto out_no_dmabuf;
 
 	tmp = ttm_bo_reference(&vmw_user_bo->dma.base);
-	ret = ttm_base_object_init(vmw_fpriv(file_priv)->tfile,
-				   &vmw_user_bo->base,
-				   false,
-				   ttm_buffer_type,
-				   &vmw_user_dmabuf_release, NULL);
+	ret = ttm_prime_object_init(vmw_fpriv(file_priv)->tfile,
+				    args->size,
+				    &vmw_user_bo->prime,
+				    false,
+				    ttm_buffer_type,
+				    &vmw_user_dmabuf_release, NULL);
 	if (unlikely(ret != 0))
 		goto out_no_base_object;
 
-	args->handle = vmw_user_bo->base.hash.key;
+	args->handle = vmw_user_bo->prime.base.hash.key;
 
 out_no_base_object:
 	ttm_bo_unref(&tmp);
-- 
cgit 


From 0c3c6c00c69649f4749642b3e5d82125fde1600c Mon Sep 17 00:00:00 2001
From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: Mon, 18 Nov 2013 12:53:59 +0100
Subject: netfilter: nf_conntrack: decrement global counter after object
 release

nf_conntrack_free() decrements our counter (net->ct.count)
before releasing the conntrack object. That counter is used in the
nf_conntrack_cleanup_net_list path to check if it's time to
kmem_cache_destroy our cache of conntrack objects. I think we have
a race there that should be easier to trigger (although still hard)
with CONFIG_DEBUG_OBJECTS_FREE as object releases become slowier
according to the following splat:

[ 1136.321305] WARNING: CPU: 2 PID: 2483 at lib/debugobjects.c:260
debug_print_object+0x83/0xa0()
[ 1136.321311] ODEBUG: free active (active state 0) object type:
timer_list hint: delayed_work_timer_fn+0x0/0x20
...
[ 1136.321390] Call Trace:
[ 1136.321398]  [<ffffffff8160d4a2>] dump_stack+0x45/0x56
[ 1136.321405]  [<ffffffff810514e8>] warn_slowpath_common+0x78/0xa0
[ 1136.321410]  [<ffffffff81051557>] warn_slowpath_fmt+0x47/0x50
[ 1136.321414]  [<ffffffff812f8883>] debug_print_object+0x83/0xa0
[ 1136.321420]  [<ffffffff8106aa90>] ? execute_in_process_context+0x90/0x90
[ 1136.321424]  [<ffffffff812f99fb>] debug_check_no_obj_freed+0x20b/0x250
[ 1136.321429]  [<ffffffff8112e7f2>] ? kmem_cache_destroy+0x92/0x100
[ 1136.321433]  [<ffffffff8115d945>] kmem_cache_free+0x125/0x210
[ 1136.321436]  [<ffffffff8112e7f2>] kmem_cache_destroy+0x92/0x100
[ 1136.321443]  [<ffffffffa046b806>] nf_conntrack_cleanup_net_list+0x126/0x160 [nf_conntrack]
[ 1136.321449]  [<ffffffffa046c43d>] nf_conntrack_pernet_exit+0x6d/0x80 [nf_conntrack]
[ 1136.321453]  [<ffffffff81511cc3>] ops_exit_list.isra.3+0x53/0x60
[ 1136.321457]  [<ffffffff815124f0>] cleanup_net+0x100/0x1b0
[ 1136.321460]  [<ffffffff8106b31e>] process_one_work+0x18e/0x430
[ 1136.321463]  [<ffffffff8106bf49>] worker_thread+0x119/0x390
[ 1136.321467]  [<ffffffff8106be30>] ? manage_workers.isra.23+0x2a0/0x2a0
[ 1136.321470]  [<ffffffff8107210b>] kthread+0xbb/0xc0
[ 1136.321472]  [<ffffffff81072050>] ? kthread_create_on_node+0x110/0x110
[ 1136.321477]  [<ffffffff8161b8fc>] ret_from_fork+0x7c/0xb0
[ 1136.321479]  [<ffffffff81072050>] ? kthread_create_on_node+0x110/0x110
[ 1136.321481] ---[ end trace 25f53c192da70825 ]---

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nf_conntrack_core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index e22d950c60b3..43549eb7a7be 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -764,9 +764,10 @@ void nf_conntrack_free(struct nf_conn *ct)
 	struct net *net = nf_ct_net(ct);
 
 	nf_ct_ext_destroy(ct);
-	atomic_dec(&net->ct.count);
 	nf_ct_ext_free(ct);
 	kmem_cache_free(net->ct.nf_conntrack_cachep, ct);
+	smp_mb__before_atomic_dec();
+	atomic_dec(&net->ct.count);
 }
 EXPORT_SYMBOL_GPL(nf_conntrack_free);
 
-- 
cgit 


From 1ddce27d8f0ae3f911850e06a4937de89645dfa7 Mon Sep 17 00:00:00 2001
From: Michel Dänzer <michel.daenzer@amd.com>
Date: Mon, 18 Nov 2013 18:25:59 +0900
Subject: drm/radeon/cik: Return backend map information to userspace
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This is required to properly calculate the tiling parameters
in userspace.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/radeon/radeon_kms.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index bb8710531a1b..fa42c81da500 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -340,7 +340,7 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 		break;
 	case RADEON_INFO_BACKEND_MAP:
 		if (rdev->family >= CHIP_BONAIRE)
-			return -EINVAL;
+			*value = rdev->config.cik.backend_map;
 		else if (rdev->family >= CHIP_TAHITI)
 			*value = rdev->config.si.backend_map;
 		else if (rdev->family >= CHIP_CAYMAN)
-- 
cgit 


From 32f79a8a82b2ff6f1828b258da214869adc2a28c Mon Sep 17 00:00:00 2001
From: Michel Dänzer <michel.daenzer@amd.com>
Date: Mon, 18 Nov 2013 18:26:00 +0900
Subject: drm/radeon/cik: Add macrotile mode array query
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This is required to properly calculate the tiling parameters
in userspace.

Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/radeon/cik.c        | 3 +++
 drivers/gpu/drm/radeon/radeon.h     | 1 +
 drivers/gpu/drm/radeon/radeon_drv.c | 3 ++-
 drivers/gpu/drm/radeon/radeon_kms.c | 9 +++++++++
 include/uapi/drm/radeon_drm.h       | 2 ++
 5 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index 08aa58ef8d0a..b43a3a3c9067 100644
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -2427,6 +2427,7 @@ static void cik_tiling_mode_table_init(struct radeon_device *rdev)
 				gb_tile_moden = 0;
 				break;
 			}
+			rdev->config.cik.macrotile_mode_array[reg_offset] = gb_tile_moden;
 			WREG32(GB_MACROTILE_MODE0 + (reg_offset * 4), gb_tile_moden);
 		}
 	} else if (num_pipe_configs == 4) {
@@ -2773,6 +2774,7 @@ static void cik_tiling_mode_table_init(struct radeon_device *rdev)
 				gb_tile_moden = 0;
 				break;
 			}
+			rdev->config.cik.macrotile_mode_array[reg_offset] = gb_tile_moden;
 			WREG32(GB_MACROTILE_MODE0 + (reg_offset * 4), gb_tile_moden);
 		}
 	} else if (num_pipe_configs == 2) {
@@ -2990,6 +2992,7 @@ static void cik_tiling_mode_table_init(struct radeon_device *rdev)
 				gb_tile_moden = 0;
 				break;
 			}
+			rdev->config.cik.macrotile_mode_array[reg_offset] = gb_tile_moden;
 			WREG32(GB_MACROTILE_MODE0 + (reg_offset * 4), gb_tile_moden);
 		}
 	} else
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 4970ac0ebc80..ecf2a3960c07 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -1982,6 +1982,7 @@ struct cik_asic {
 
 	unsigned tile_config;
 	uint32_t tile_mode_array[32];
+	uint32_t macrotile_mode_array[16];
 };
 
 union radeon_asic_config {
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index 1aee32213f66..9f5ff28864f6 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -76,9 +76,10 @@
  *   2.32.0 - new info request for rings working
  *   2.33.0 - Add SI tiling mode array query
  *   2.34.0 - Add CIK tiling mode array query
+ *   2.35.0 - Add CIK macrotile mode array query
  */
 #define KMS_DRIVER_MAJOR	2
-#define KMS_DRIVER_MINOR	34
+#define KMS_DRIVER_MINOR	35
 #define KMS_DRIVER_PATCHLEVEL	0
 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags);
 int radeon_driver_unload_kms(struct drm_device *dev);
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index fa42c81da500..55d0b474bd37 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -449,6 +449,15 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 			return -EINVAL;
 		}
 		break;
+	case RADEON_INFO_CIK_MACROTILE_MODE_ARRAY:
+		if (rdev->family >= CHIP_BONAIRE) {
+			value = rdev->config.cik.macrotile_mode_array;
+			value_size = sizeof(uint32_t)*16;
+		} else {
+			DRM_DEBUG_KMS("macrotile mode array is cik+ only!\n");
+			return -EINVAL;
+		}
+		break;
 	case RADEON_INFO_SI_CP_DMA_COMPUTE:
 		*value = 1;
 		break;
diff --git a/include/uapi/drm/radeon_drm.h b/include/uapi/drm/radeon_drm.h
index 46d41e8b0dcc..2f3f7ea8c77b 100644
--- a/include/uapi/drm/radeon_drm.h
+++ b/include/uapi/drm/radeon_drm.h
@@ -981,6 +981,8 @@ struct drm_radeon_cs {
 #define RADEON_INFO_SI_TILE_MODE_ARRAY	0x16
 /* query if CP DMA is supported on the compute ring */
 #define RADEON_INFO_SI_CP_DMA_COMPUTE	0x17
+/* CIK macrotile mode array */
+#define RADEON_INFO_CIK_MACROTILE_MODE_ARRAY	0x18
 
 
 struct drm_radeon_info {
-- 
cgit 


From 9e3908e342eba6684621e616529669c17e271e7e Mon Sep 17 00:00:00 2001
From: Mark Tinguely <tinguely@sgi.com>
Date: Thu, 7 Nov 2013 15:43:28 -0600
Subject: xfs: fix unlock in xfs_bmap_add_attrfork

xfs_trans_ijoin() activates the inode in a transaction and
also can specify which lock to free when the transaction is
committed or canceled.

xfs_bmap_add_attrfork call locks and adds the lock to the
transaction but also manually removes the lock. Change the
routine to not add the lock to the transaction and manually
remove lock on completion.

While here, clean up the xfs_trans_cancel flags and goto names.

Signed-off-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_bmap.c | 38 +++++++++++++++++++++-----------------
 1 file changed, 21 insertions(+), 17 deletions(-)

diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 1c02da8bb7df..3ef11b22e750 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -1137,6 +1137,7 @@ xfs_bmap_add_attrfork(
 	int			committed;	/* xaction was committed */
 	int			logflags;	/* logging flags */
 	int			error;		/* error return value */
+	int			cancel_flags = 0;
 
 	ASSERT(XFS_IFORK_Q(ip) == 0);
 
@@ -1147,19 +1148,20 @@ xfs_bmap_add_attrfork(
 	if (rsvd)
 		tp->t_flags |= XFS_TRANS_RESERVE;
 	error = xfs_trans_reserve(tp, &M_RES(mp)->tr_addafork, blks, 0);
-	if (error)
-		goto error0;
+	if (error) {
+		xfs_trans_cancel(tp, 0);
+		return error;
+	}
+	cancel_flags = XFS_TRANS_RELEASE_LOG_RES;
 	xfs_ilock(ip, XFS_ILOCK_EXCL);
 	error = xfs_trans_reserve_quota_nblks(tp, ip, blks, 0, rsvd ?
 			XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_FORCE_RES :
 			XFS_QMOPT_RES_REGBLKS);
-	if (error) {
-		xfs_iunlock(ip, XFS_ILOCK_EXCL);
-		xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES);
-		return error;
-	}
+	if (error)
+		goto trans_cancel;
+	cancel_flags |= XFS_TRANS_ABORT;
 	if (XFS_IFORK_Q(ip))
-		goto error1;
+		goto trans_cancel;
 	if (ip->i_d.di_aformat != XFS_DINODE_FMT_EXTENTS) {
 		/*
 		 * For inodes coming from pre-6.2 filesystems.
@@ -1169,7 +1171,7 @@ xfs_bmap_add_attrfork(
 	}
 	ASSERT(ip->i_d.di_anextents == 0);
 
-	xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
+	xfs_trans_ijoin(tp, ip, 0);
 	xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
 
 	switch (ip->i_d.di_format) {
@@ -1191,7 +1193,7 @@ xfs_bmap_add_attrfork(
 	default:
 		ASSERT(0);
 		error = XFS_ERROR(EINVAL);
-		goto error1;
+		goto trans_cancel;
 	}
 
 	ASSERT(ip->i_afp == NULL);
@@ -1219,7 +1221,7 @@ xfs_bmap_add_attrfork(
 	if (logflags)
 		xfs_trans_log_inode(tp, ip, logflags);
 	if (error)
-		goto error2;
+		goto bmap_cancel;
 	if (!xfs_sb_version_hasattr(&mp->m_sb) ||
 	   (!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2)) {
 		__int64_t sbfields = 0;
@@ -1242,14 +1244,16 @@ xfs_bmap_add_attrfork(
 
 	error = xfs_bmap_finish(&tp, &flist, &committed);
 	if (error)
-		goto error2;
-	return xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
-error2:
+		goto bmap_cancel;
+	error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
+	xfs_iunlock(ip, XFS_ILOCK_EXCL);
+	return error;
+
+bmap_cancel:
 	xfs_bmap_cancel(&flist);
-error1:
+trans_cancel:
+	xfs_trans_cancel(tp, cancel_flags);
 	xfs_iunlock(ip, XFS_ILOCK_EXCL);
-error0:
-	xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES|XFS_TRANS_ABORT);
 	return error;
 }
 
-- 
cgit 


From 8f80587bacb6eb893df0ee4e35fefa0dfcfdf9f4 Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Fri, 1 Nov 2013 15:27:20 +1100
Subject: xfs: increase inode cluster size for v5 filesystems

v5 filesystems use 512 byte inodes as a minimum, so read inodes in
clusters that are effectively half the size of a v4 filesystem with
256 byte inodes. For v5 fielsystems, scale the inode cluster size
with the size of the inode so that we keep a constant 32 inodes per
cluster ratio for all inode IO.

This only works if mkfs.xfs sets the inode alignment appropriately
for larger inode clusters, so this functionality is made conditional
on mkfs doing the right thing. xfs_repair needs to know about
the inode alignment changes, too.

Wall time:
	create	bulkstat	find+stat	ls -R	unlink
v4	237s	161s		173s		201s	299s
v5	235s	163s		205s		 31s	356s
patched	234s	160s		182s		 29s	317s

System time:
	create	bulkstat	find+stat	ls -R	unlink
v4	2601s	2490s		1653s		1656s	2960s
v5	2637s	2497s		1681s		  20s	3216s
patched	2613s	2451s		1658s		  20s	3007s

So, wall time same or down across the board, system time same or
down across the board, and cache hit rates all improve except for
the ls -R case which is a pure cold cache directory read workload
on v5 filesystems...

So, this patch removes most of the performance and CPU usage
differential between v4 and v5 filesystems on traversal related
workloads.

Note: while this patch is currently for v5 filesystems only, there
is no reason it can't be ported back to v4 filesystems.  This hasn't
been done here because bringing the code back to v4 requires
forwards and backwards kernel compatibility testing.  i.e. to
deterine if older kernels(*) do the right thing with larger inode
alignments but still only using 8k inode cluster sizes. None of this
testing and validation on v4 filesystems has been done, so for the
moment larger inode clusters is limited to v5 superblocks.

(*) a current default config v4 filesystem should mount just fine on
2.6.23 (when lazy-count support was introduced), and so if we change
the alignment emitted by mkfs without a feature bit then we have to
make sure it works properly on all kernels since 2.6.23. And if we
allow it to be changed when the lazy-count bit is not set, then it's
all kernels since v2 logs were introduced that need to be tested for
compatibility...

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_mount.c      | 15 +++++++++++++++
 fs/xfs/xfs_mount.h      |  2 +-
 fs/xfs/xfs_trans_resv.c |  3 +--
 3 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index da88f167af78..02df7b408a26 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -41,6 +41,7 @@
 #include "xfs_fsops.h"
 #include "xfs_trace.h"
 #include "xfs_icache.h"
+#include "xfs_dinode.h"
 
 
 #ifdef HAVE_PERCPU_SB
@@ -718,8 +719,22 @@ xfs_mountfs(
 	 * Set the inode cluster size.
 	 * This may still be overridden by the file system
 	 * block size if it is larger than the chosen cluster size.
+	 *
+	 * For v5 filesystems, scale the cluster size with the inode size to
+	 * keep a constant ratio of inode per cluster buffer, but only if mkfs
+	 * has set the inode alignment value appropriately for larger cluster
+	 * sizes.
 	 */
 	mp->m_inode_cluster_size = XFS_INODE_BIG_CLUSTER_SIZE;
+	if (xfs_sb_version_hascrc(&mp->m_sb)) {
+		int	new_size = mp->m_inode_cluster_size;
+
+		new_size *= mp->m_sb.sb_inodesize / XFS_DINODE_MIN_SIZE;
+		if (mp->m_sb.sb_inoalignmt >= XFS_B_TO_FSBT(mp, new_size))
+			mp->m_inode_cluster_size = new_size;
+		xfs_info(mp, "Using inode cluster size of %d bytes",
+			 mp->m_inode_cluster_size);
+	}
 
 	/*
 	 * Set inode alignment fields
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 1d8101a10d8e..a466c5e5826e 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -112,7 +112,7 @@ typedef struct xfs_mount {
 	__uint8_t		m_blkbb_log;	/* blocklog - BBSHIFT */
 	__uint8_t		m_agno_log;	/* log #ag's */
 	__uint8_t		m_agino_log;	/* #bits for agino in inum */
-	__uint16_t		m_inode_cluster_size;/* min inode buf size */
+	uint			m_inode_cluster_size;/* min inode buf size */
 	uint			m_blockmask;	/* sb_blocksize-1 */
 	uint			m_blockwsize;	/* sb_blocksize in words */
 	uint			m_blockwmask;	/* blockwsize-1 */
diff --git a/fs/xfs/xfs_trans_resv.c b/fs/xfs/xfs_trans_resv.c
index d53d9f0627a7..2fd59c0dae66 100644
--- a/fs/xfs/xfs_trans_resv.c
+++ b/fs/xfs/xfs_trans_resv.c
@@ -385,8 +385,7 @@ xfs_calc_ifree_reservation(
 		xfs_calc_inode_res(mp, 1) +
 		xfs_calc_buf_res(2, mp->m_sb.sb_sectsize) +
 		xfs_calc_buf_res(1, XFS_FSB_TO_B(mp, 1)) +
-		MAX((__uint16_t)XFS_FSB_TO_B(mp, 1),
-		    XFS_INODE_CLUSTER_SIZE(mp)) +
+		max_t(uint, XFS_FSB_TO_B(mp, 1), XFS_INODE_CLUSTER_SIZE(mp)) +
 		xfs_calc_buf_res(1, 0) +
 		xfs_calc_buf_res(2 + XFS_IALLOC_BLOCKS(mp) +
 				 mp->m_in_maxlevels, 0) +
-- 
cgit 


From c8999a889f466bd4e4db45337a43b8544b91c550 Mon Sep 17 00:00:00 2001
From: Josh Boyer <jwboyer@redhat.com>
Date: Mon, 18 Nov 2013 08:48:07 -0500
Subject: arm/xen: Export phys_to_mach to fix Xen module link errors

Various xen drivers fail to link when built as modules with the following
error:

ERROR: "phys_to_mach" [drivers/xen/xen-gntalloc.ko] undefined!
ERROR: "phys_to_mach" [drivers/net/xen-netfront.ko] undefined!
ERROR: "phys_to_mach" [drivers/net/xen-netback/xen-netback.ko] undefined!
ERROR: "phys_to_mach" [drivers/block/xen-blkfront.ko] undefined!

The mfn_to_pfn and pfn_to_mfn functions get inlined in these modules and
those functions require phys_to_mach.  Export the symbol to fix the link
errors.

Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
---
 arch/arm/xen/p2m.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/xen/p2m.c b/arch/arm/xen/p2m.c
index 23732cdff551..0f842e858790 100644
--- a/arch/arm/xen/p2m.c
+++ b/arch/arm/xen/p2m.c
@@ -27,6 +27,7 @@ struct xen_p2m_entry {
 
 rwlock_t p2m_lock;
 struct rb_root phys_to_mach = RB_ROOT;
+EXPORT_SYMBOL_GPL(phys_to_mach);
 static struct rb_root mach_to_phys = RB_ROOT;
 
 static int xen_add_phys_to_mach_entry(struct xen_p2m_entry *new)
-- 
cgit 


From f9c7ec1649607d68a47ab99e2ebb3379a2016157 Mon Sep 17 00:00:00 2001
From: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Date: Sun, 17 Nov 2013 16:31:34 +0000
Subject: xen/arm: p2m_init and p2m_lock should be static

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
---
 arch/arm/xen/p2m.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/xen/p2m.c b/arch/arm/xen/p2m.c
index 0f842e858790..b31ee1b275b0 100644
--- a/arch/arm/xen/p2m.c
+++ b/arch/arm/xen/p2m.c
@@ -25,7 +25,7 @@ struct xen_p2m_entry {
 	struct rb_node rbnode_phys;
 };
 
-rwlock_t p2m_lock;
+static rwlock_t p2m_lock;
 struct rb_root phys_to_mach = RB_ROOT;
 EXPORT_SYMBOL_GPL(phys_to_mach);
 static struct rb_root mach_to_phys = RB_ROOT;
@@ -201,7 +201,7 @@ bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn)
 }
 EXPORT_SYMBOL_GPL(__set_phys_to_machine);
 
-int p2m_init(void)
+static int p2m_init(void)
 {
 	rwlock_init(&p2m_lock);
 	return 0;
-- 
cgit 


From 2fe8c1c08b3fbd87dd2641c8f032ff6e965d5803 Mon Sep 17 00:00:00 2001
From: Dave Chinner <dchinner@redhat.com>
Date: Fri, 1 Nov 2013 15:27:17 +1100
Subject: xfs: open code inc_inode_iversion when logging an inode

Michael L Semon reported that generic/069 runtime increased on v5
superblocks by 100% compared to v4 superblocks. his perf-based
analysis pointed directly at the timestamp updates being done by the
write path in this workload. The append writers are doing 4-byte
writes, so there are lots of timestamp updates occurring.

The thing is, they aren't being triggered by timestamp changes -
they are being triggered by the inode change counter needing to be
updated. That is, every write(2) system call needs to bump the inode
version count, and it does that through the timestamp update
mechanism. Hence for v5 filesystems, test generic/069 is running 3
orders of magnitude more timestmap update transactions on v5
filesystems due to the fact it does a huge number of *4 byte*
write(2) calls.

This isn't a real world scenario we really need to address - anyone
doing such sequential IO should be using fwrite(3), not write(2).
i.e. fwrite(3) buffers the writes in userspace to minimise the
number of write(2) syscalls, and the problem goes away.

However, there is a small change we can make to improve the
situation - removing the expensive lock operation on the change
counter update.  All inode version counter changes in XFS occur
under the ip->i_ilock during a transaction, and therefore we
don't actually need the spin lock that provides exclusive access to
it through inc_inode_iversion().

Hence avoid the lock and just open code the increment ourselves when
logging the inode.

Reported-by: Michael L. Semon <mlsemon35@gmail.com>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>
---
 fs/xfs/xfs_trans_inode.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/fs/xfs/xfs_trans_inode.c b/fs/xfs/xfs_trans_inode.c
index 1bba7f60d94c..50c3f5614288 100644
--- a/fs/xfs/xfs_trans_inode.c
+++ b/fs/xfs/xfs_trans_inode.c
@@ -111,12 +111,14 @@ xfs_trans_log_inode(
 
 	/*
 	 * First time we log the inode in a transaction, bump the inode change
-	 * counter if it is configured for this to occur.
+	 * counter if it is configured for this to occur. We don't use
+	 * inode_inc_version() because there is no need for extra locking around
+	 * i_version as we already hold the inode locked exclusively for
+	 * metadata modification.
 	 */
 	if (!(ip->i_itemp->ili_item.li_desc->lid_flags & XFS_LID_DIRTY) &&
 	    IS_I_VERSION(VFS_I(ip))) {
-		inode_inc_iversion(VFS_I(ip));
-		ip->i_d.di_changecount = VFS_I(ip)->i_version;
+		ip->i_d.di_changecount = ++VFS_I(ip)->i_version;
 		flags |= XFS_ILOG_CORE;
 	}
 
-- 
cgit 


From 2c312e9af717f304fb45e7a3d827822eda6aa855 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 18 Nov 2013 17:12:34 +0100
Subject: ALSA: hda - Select FW_LOADER from CONFIG_SND_HDA_CODEC_CA0132_DSP

Use select FW_LOADER instead of depends on.  It's more intuitive and
more consistent with other entries.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/Kconfig | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/pci/hda/Kconfig b/sound/pci/hda/Kconfig
index 8de66ccd7279..4cdd9ded4563 100644
--- a/sound/pci/hda/Kconfig
+++ b/sound/pci/hda/Kconfig
@@ -209,8 +209,9 @@ config SND_HDA_CODEC_CA0132
 
 config SND_HDA_CODEC_CA0132_DSP
 	bool "Support new DSP code for CA0132 codec"
-	depends on SND_HDA_CODEC_CA0132 && FW_LOADER
+	depends on SND_HDA_CODEC_CA0132
 	select SND_HDA_DSP_LOADER
+	select FW_LOADER
 	help
 	  Say Y here to enable the DSP for Creative CA0132 for extended
 	  features like equalizer or echo cancellation.
-- 
cgit 


From 818e5a22e907fbae75e9c1fd78233baec9fa64b6 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Mon, 18 Nov 2013 05:07:30 -0800
Subject: nfsd: split up nfsd_setattr

Split out two helpers to make the code more readable and easier to verify
for correctness.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/vfs.c | 144 ++++++++++++++++++++++++++++++++++------------------------
 1 file changed, 84 insertions(+), 60 deletions(-)

diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index 94b5f5d2bfed..c3f57cf14a63 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -298,41 +298,12 @@ commit_metadata(struct svc_fh *fhp)
 }
 
 /*
- * Set various file attributes.
- * N.B. After this call fhp needs an fh_put
+ * Go over the attributes and take care of the small differences between
+ * NFS semantics and what Linux expects.
  */
-__be32
-nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
-	     int check_guard, time_t guardtime)
+static void
+nfsd_sanitize_attrs(struct inode *inode, struct iattr *iap)
 {
-	struct dentry	*dentry;
-	struct inode	*inode;
-	int		accmode = NFSD_MAY_SATTR;
-	umode_t		ftype = 0;
-	__be32		err;
-	int		host_err;
-	int		size_change = 0;
-
-	if (iap->ia_valid & (ATTR_ATIME | ATTR_MTIME | ATTR_SIZE))
-		accmode |= NFSD_MAY_WRITE|NFSD_MAY_OWNER_OVERRIDE;
-	if (iap->ia_valid & ATTR_SIZE)
-		ftype = S_IFREG;
-
-	/* Get inode */
-	err = fh_verify(rqstp, fhp, ftype, accmode);
-	if (err)
-		goto out;
-
-	dentry = fhp->fh_dentry;
-	inode = dentry->d_inode;
-
-	/* Ignore any mode updates on symlinks */
-	if (S_ISLNK(inode->i_mode))
-		iap->ia_valid &= ~ATTR_MODE;
-
-	if (!iap->ia_valid)
-		goto out;
-
 	/*
 	 * NFSv2 does not differentiate between "set-[ac]time-to-now"
 	 * which only requires access, and "set-[ac]time-to-X" which
@@ -342,8 +313,7 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
 	 * convert to "set to now" instead of "set to explicit time"
 	 *
 	 * We only call inode_change_ok as the last test as technically
-	 * it is not an interface that we should be using.  It is only
-	 * valid if the filesystem does not define it's own i_op->setattr.
+	 * it is not an interface that we should be using.
 	 */
 #define BOTH_TIME_SET (ATTR_ATIME_SET | ATTR_MTIME_SET)
 #define	MAX_TOUCH_TIME_ERROR (30*60)
@@ -369,30 +339,6 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
 			iap->ia_valid &= ~BOTH_TIME_SET;
 		}
 	}
-	    
-	/*
-	 * The size case is special.
-	 * It changes the file as well as the attributes.
-	 */
-	if (iap->ia_valid & ATTR_SIZE) {
-		if (iap->ia_size < inode->i_size) {
-			err = nfsd_permission(rqstp, fhp->fh_export, dentry,
-					NFSD_MAY_TRUNC|NFSD_MAY_OWNER_OVERRIDE);
-			if (err)
-				goto out;
-		}
-
-		host_err = get_write_access(inode);
-		if (host_err)
-			goto out_nfserr;
-
-		size_change = 1;
-		host_err = locks_verify_truncate(inode, NULL, iap->ia_size);
-		if (host_err) {
-			put_write_access(inode);
-			goto out_nfserr;
-		}
-	}
 
 	/* sanitize the mode change */
 	if (iap->ia_valid & ATTR_MODE) {
@@ -415,8 +361,86 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
 			iap->ia_valid |= (ATTR_KILL_SUID | ATTR_KILL_SGID);
 		}
 	}
+}
 
-	/* Change the attributes. */
+static __be32
+nfsd_get_write_access(struct svc_rqst *rqstp, struct svc_fh *fhp,
+		struct iattr *iap)
+{
+	struct inode *inode = fhp->fh_dentry->d_inode;
+	int host_err;
+
+	if (iap->ia_size < inode->i_size) {
+		__be32 err;
+
+		err = nfsd_permission(rqstp, fhp->fh_export, fhp->fh_dentry,
+				NFSD_MAY_TRUNC | NFSD_MAY_OWNER_OVERRIDE);
+		if (err)
+			return err;
+	}
+
+	host_err = get_write_access(inode);
+	if (host_err)
+		goto out_nfserrno;
+
+	host_err = locks_verify_truncate(inode, NULL, iap->ia_size);
+	if (host_err)
+		goto out_put_write_access;
+	return 0;
+
+out_put_write_access:
+	put_write_access(inode);
+out_nfserrno:
+	return nfserrno(host_err);
+}
+
+/*
+ * Set various file attributes.  After this call fhp needs an fh_put.
+ */
+__be32
+nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
+	     int check_guard, time_t guardtime)
+{
+	struct dentry	*dentry;
+	struct inode	*inode;
+	int		accmode = NFSD_MAY_SATTR;
+	umode_t		ftype = 0;
+	__be32		err;
+	int		host_err;
+	int		size_change = 0;
+
+	if (iap->ia_valid & (ATTR_ATIME | ATTR_MTIME | ATTR_SIZE))
+		accmode |= NFSD_MAY_WRITE|NFSD_MAY_OWNER_OVERRIDE;
+	if (iap->ia_valid & ATTR_SIZE)
+		ftype = S_IFREG;
+
+	/* Get inode */
+	err = fh_verify(rqstp, fhp, ftype, accmode);
+	if (err)
+		goto out;
+
+	dentry = fhp->fh_dentry;
+	inode = dentry->d_inode;
+
+	/* Ignore any mode updates on symlinks */
+	if (S_ISLNK(inode->i_mode))
+		iap->ia_valid &= ~ATTR_MODE;
+
+	if (!iap->ia_valid)
+		goto out;
+
+	nfsd_sanitize_attrs(inode, iap);
+
+	/*
+	 * The size case is special, it changes the file in addition to the
+	 * attributes.
+	 */
+	if (iap->ia_valid & ATTR_SIZE) {
+		err = nfsd_get_write_access(rqstp, fhp, iap);
+		if (err)
+			goto out;
+		size_change = 1;
+	}
 
 	iap->ia_valid |= ATTR_CTIME;
 
-- 
cgit 


From 987da4791052fa298b7cfcde4dea9f6f2bbc786b Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@infradead.org>
Date: Mon, 18 Nov 2013 05:07:47 -0800
Subject: nfsd: make sure to balance get/put_write_access

Use a straight goto error label style in nfsd_setattr to make sure
we always do the put_write_access call after we got it earlier.

Note that the we have been failing to do that in the case
nfsd_break_lease() returns an error, a bug introduced into 2.6.38 with
6a76bebefe15d9a08864f824d7f8d5beaf37c997 "nfsd4: break lease on nfsd
setattr".

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/vfs.c | 29 +++++++++++++++--------------
 1 file changed, 15 insertions(+), 14 deletions(-)

diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index c3f57cf14a63..7eea63cada1d 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -444,27 +444,28 @@ nfsd_setattr(struct svc_rqst *rqstp, struct svc_fh *fhp, struct iattr *iap,
 
 	iap->ia_valid |= ATTR_CTIME;
 
-	err = nfserr_notsync;
-	if (!check_guard || guardtime == inode->i_ctime.tv_sec) {
-		host_err = nfsd_break_lease(inode);
-		if (host_err)
-			goto out_nfserr;
-		fh_lock(fhp);
-
-		host_err = notify_change(dentry, iap, NULL);
-		err = nfserrno(host_err);
-		fh_unlock(fhp);
+	if (check_guard && guardtime != inode->i_ctime.tv_sec) {
+		err = nfserr_notsync;
+		goto out_put_write_access;
 	}
+
+	host_err = nfsd_break_lease(inode);
+	if (host_err)
+		goto out_put_write_access_nfserror;
+
+	fh_lock(fhp);
+	host_err = notify_change(dentry, iap, NULL);
+	fh_unlock(fhp);
+
+out_put_write_access_nfserror:
+	err = nfserrno(host_err);
+out_put_write_access:
 	if (size_change)
 		put_write_access(inode);
 	if (!err)
 		commit_metadata(fhp);
 out:
 	return err;
-
-out_nfserr:
-	err = nfserrno(host_err);
-	goto out;
 }
 
 #if defined(CONFIG_NFSD_V2_ACL) || \
-- 
cgit 


From fdcf77659c103388a67f40f2f8db239b57c1ce4e Mon Sep 17 00:00:00 2001
From: Ma JieYue <jieyue.majy@alibaba-inc.com>
Date: Fri, 15 Nov 2013 12:26:13 +0800
Subject: xen-netfront: fix missing rx_refill_timer when allocate memory failed

There was a bug in xennet_alloc_rx_buffers, when allocating page or
sk_buff failed, and at the same time rx_batch queue not empty,
the rx_refill_timer timer won't be scheduled. If finally the remaining
request buffers in rx ring less than what backend driver expected,
the backend driver would think of rx ring as full and start dropping packets.
In such situation, there is no way for the netfront driver to recover
automatically, so that the device can not work properly.

The patch fixes the problem by always scheduling rx_refill_timer timer when
alloc_page or __netdev_alloc_skb fails, no matter whether rx_batch queue is
empty or not. It ensures that the rx ring request buffers will finally meet
the backend needs.

Signed-off-by: Ma JieYue <jieyue.majy@alibaba-inc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/xen-netfront.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index dd1011e55cb5..5bd20d99acc8 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -277,12 +277,13 @@ static void xennet_alloc_rx_buffers(struct net_device *dev)
 		if (!page) {
 			kfree_skb(skb);
 no_skb:
-			/* Any skbuffs queued for refill? Force them out. */
-			if (i != 0)
-				goto refill;
 			/* Could not allocate any skbuffs. Try again later. */
 			mod_timer(&np->rx_refill_timer,
 				  jiffies + (HZ/10));
+
+			/* Any skbuffs queued for refill? Force them out. */
+			if (i != 0)
+				goto refill;
 			break;
 		}
 
-- 
cgit 


From cae26f31138a7f5850294e3bc4500e4283890f9f Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Sat, 16 Nov 2013 07:15:25 -0800
Subject: ARM: OMAP2+: More randconfig fixes for reconfigure_io_chain

Commit 26273e02a0cf (ARM: OMAP2+: Fix build for dra7xx without
omap4 and 5) attempted to fix randconfig found errors for
redefinition of omap44xx_prm_reconfigure_io_chain, but was
not enough.

We need to check for AM43XX without any omap4 or 5 related
SoCs as well. And looks like we have prm44xx.o built always
anyways with omap-4-5-prcm-common because of the calls to
omap4_prm_vp_clear_txdone, so we can remove the duplicate
entries in the Makefile.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/Makefile       | 6 +++---
 arch/arm/mach-omap2/prm44xx_54xx.h | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index 1f25f3e99c05..adcef406ff0a 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -19,11 +19,11 @@ secure-common				= omap-smc.o omap-secure.o
 
 obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(hwmod-common)
 obj-$(CONFIG_ARCH_OMAP3) += $(omap-2-3-common) $(hwmod-common) $(secure-common)
-obj-$(CONFIG_ARCH_OMAP4) += prm44xx.o $(hwmod-common) $(secure-common)
+obj-$(CONFIG_ARCH_OMAP4) += $(hwmod-common) $(secure-common)
 obj-$(CONFIG_SOC_AM33XX) += irq.o $(hwmod-common)
-obj-$(CONFIG_SOC_OMAP5)	 += prm44xx.o $(hwmod-common) $(secure-common)
+obj-$(CONFIG_SOC_OMAP5)	 += $(hwmod-common) $(secure-common)
 obj-$(CONFIG_SOC_AM43XX) += $(hwmod-common) $(secure-common)
-obj-$(CONFIG_SOC_DRA7XX) += prm44xx.o $(hwmod-common) $(secure-common)
+obj-$(CONFIG_SOC_DRA7XX) += $(hwmod-common) $(secure-common)
 
 ifneq ($(CONFIG_SND_OMAP_SOC_MCBSP),)
 obj-y += mcbsp.o
diff --git a/arch/arm/mach-omap2/prm44xx_54xx.h b/arch/arm/mach-omap2/prm44xx_54xx.h
index 7a976065e138..8d95aa543ef5 100644
--- a/arch/arm/mach-omap2/prm44xx_54xx.h
+++ b/arch/arm/mach-omap2/prm44xx_54xx.h
@@ -43,7 +43,7 @@ extern void omap4_prm_vcvp_write(u32 val, u8 offset);
 extern u32 omap4_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
 
 #if defined(CONFIG_ARCH_OMAP4) || defined(CONFIG_SOC_OMAP5) || \
-	defined(CONFIG_SOC_DRA7XX)
+	defined(CONFIG_SOC_DRA7XX) || defined(CONFIG_SOC_AM43XX)
 void omap44xx_prm_reconfigure_io_chain(void);
 #else
 static inline void omap44xx_prm_reconfigure_io_chain(void)
-- 
cgit 


From cfff1f4a9367bfe0d88413e8807f8369e9564729 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 18 Nov 2013 21:03:08 +0800
Subject: i2c: bcm-kona: fix error return code in bcm_kona_i2c_probe()

Fix to return a negative error code from the bus speed parse
error handling case instead of 0.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Tim Kryger <tim.kryger@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-bcm-kona.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-bcm-kona.c b/drivers/i2c/busses/i2c-bcm-kona.c
index 7b7b7622b0d1..eb1ce6e4523a 100644
--- a/drivers/i2c/busses/i2c-bcm-kona.c
+++ b/drivers/i2c/busses/i2c-bcm-kona.c
@@ -792,7 +792,8 @@ static int bcm_kona_i2c_probe(struct platform_device *pdev)
 	}
 
 	/* Parse bus speed */
-	if (bcm_kona_i2c_assign_bus_speed(dev))
+	rc = bcm_kona_i2c_assign_bus_speed(dev);
+	if (rc)
 		goto probe_disable_clk;
 
 	/* Enable internal clocks */
-- 
cgit 


From 34f2fd8dfe6185b0eaaf7d661281713a6170b077 Mon Sep 17 00:00:00 2001
From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Mon, 18 Nov 2013 22:11:42 +0900
Subject: bio: fix argument of __bio_add_page() for max_sectors > 0xffff

The data type of max_sectors and max_hw_sectors in queue settings are
unsigned int.  But these values are passed to __bio_add_page() as an
argument whose data type is unsigned short.  In the worst case such as
max_sectors is 0x10000, bio_add_page() can't add a page and IOs can't
proceed.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 fs/bio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/bio.c b/fs/bio.c
index 2bdb4e25ee77..33d79a4eb92d 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -601,7 +601,7 @@ EXPORT_SYMBOL(bio_get_nr_vecs);
 
 static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page
 			  *page, unsigned int len, unsigned int offset,
-			  unsigned short max_sectors)
+			  unsigned int max_sectors)
 {
 	int retried_segments = 0;
 	struct bio_vec *bvec;
-- 
cgit 


From bcd081a3aef1f7f3786067ae8dd26aaa1cf85153 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Sat, 16 Nov 2013 00:52:08 -0200
Subject: net: ipv6: ndisc: Fix warning when CONFIG_SYSCTL=n

When CONFIG_SYSCTL=n the following build warning happens:

net/ipv6/ndisc.c:1730:1: warning: label 'out' defined but not used [-Wunused-label]

The 'out' label is only used when CONFIG_SYSCTL=y, so move it inside the
'ifdef CONFIG_SYSCTL' block.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/ndisc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index f8a55ff1971b..3512177deb4d 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1726,8 +1726,8 @@ int __init ndisc_init(void)
 				    &ndisc_ifinfo_sysctl_change);
 	if (err)
 		goto out_unregister_pernet;
-#endif
 out:
+#endif
 	return err;
 
 #ifdef CONFIG_SYSCTL
-- 
cgit 


From bceaa90240b6019ed73b49965eac7d167610be69 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Mon, 18 Nov 2013 04:20:45 +0100
Subject: inet: prevent leakage of uninitialized memory to user in recv
 syscalls

Only update *addr_len when we actually fill in sockaddr, otherwise we
can return uninitialized memory from the stack to the caller in the
recvfrom, recvmmsg and recvmsg syscalls. Drop the the (addr_len == NULL)
checks because we only get called with a valid addr_len pointer either
from sock_common_recvmsg or inet_recvmsg.

If a blocking read waits on a socket which is concurrently shut down we
now return zero and set msg_msgnamelen to 0.

Reported-by: mpb <mpb.mail@gmail.com>
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ieee802154/dgram.c |  3 +--
 net/ipv4/ping.c        | 19 +++++++------------
 net/ipv4/raw.c         |  4 +---
 net/ipv4/udp.c         |  7 +------
 net/ipv6/raw.c         |  4 +---
 net/ipv6/udp.c         |  5 +----
 net/l2tp/l2tp_ip.c     |  4 +---
 net/phonet/datagram.c  |  9 ++++-----
 8 files changed, 17 insertions(+), 38 deletions(-)

diff --git a/net/ieee802154/dgram.c b/net/ieee802154/dgram.c
index 581a59504bd5..1865fdf5a5a5 100644
--- a/net/ieee802154/dgram.c
+++ b/net/ieee802154/dgram.c
@@ -315,9 +315,8 @@ static int dgram_recvmsg(struct kiocb *iocb, struct sock *sk,
 	if (saddr) {
 		saddr->family = AF_IEEE802154;
 		saddr->addr = mac_cb(skb)->sa;
-	}
-	if (addr_len)
 		*addr_len = sizeof(*saddr);
+	}
 
 	if (flags & MSG_TRUNC)
 		copied = skb->len;
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 9afbdb19f4a2..aacefa0caa36 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -830,8 +830,6 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 {
 	struct inet_sock *isk = inet_sk(sk);
 	int family = sk->sk_family;
-	struct sockaddr_in *sin;
-	struct sockaddr_in6 *sin6;
 	struct sk_buff *skb;
 	int copied, err;
 
@@ -841,13 +839,6 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 	if (flags & MSG_OOB)
 		goto out;
 
-	if (addr_len) {
-		if (family == AF_INET)
-			*addr_len = sizeof(*sin);
-		else if (family == AF_INET6 && addr_len)
-			*addr_len = sizeof(*sin6);
-	}
-
 	if (flags & MSG_ERRQUEUE) {
 		if (family == AF_INET) {
 			return ip_recv_error(sk, msg, len);
@@ -877,11 +868,13 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 
 	/* Copy the address and add cmsg data. */
 	if (family == AF_INET) {
-		sin = (struct sockaddr_in *) msg->msg_name;
+		struct sockaddr_in *sin = (struct sockaddr_in *)msg->msg_name;
+
 		sin->sin_family = AF_INET;
 		sin->sin_port = 0 /* skb->h.uh->source */;
 		sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
 		memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
+		*addr_len = sizeof(*sin);
 
 		if (isk->cmsg_flags)
 			ip_cmsg_recv(msg, skb);
@@ -890,17 +883,19 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 	} else if (family == AF_INET6) {
 		struct ipv6_pinfo *np = inet6_sk(sk);
 		struct ipv6hdr *ip6 = ipv6_hdr(skb);
-		sin6 = (struct sockaddr_in6 *) msg->msg_name;
+		struct sockaddr_in6 *sin6 =
+			(struct sockaddr_in6 *)msg->msg_name;
+
 		sin6->sin6_family = AF_INET6;
 		sin6->sin6_port = 0;
 		sin6->sin6_addr = ip6->saddr;
-
 		sin6->sin6_flowinfo = 0;
 		if (np->sndflow)
 			sin6->sin6_flowinfo = ip6_flowinfo(ip6);
 
 		sin6->sin6_scope_id = ipv6_iface_scope_id(&sin6->sin6_addr,
 							  IP6CB(skb)->iif);
+		*addr_len = sizeof(*sin6);
 
 		if (inet6_sk(sk)->rxopt.all)
 			pingv6_ops.ip6_datagram_recv_ctl(sk, msg, skb);
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 41e1d2845c8f..5cb8ddb505ee 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -696,9 +696,6 @@ static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 	if (flags & MSG_OOB)
 		goto out;
 
-	if (addr_len)
-		*addr_len = sizeof(*sin);
-
 	if (flags & MSG_ERRQUEUE) {
 		err = ip_recv_error(sk, msg, len);
 		goto out;
@@ -726,6 +723,7 @@ static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 		sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
 		sin->sin_port = 0;
 		memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
+		*addr_len = sizeof(*sin);
 	}
 	if (inet->cmsg_flags)
 		ip_cmsg_recv(msg, skb);
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 89909dd730dd..998431cd471a 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1235,12 +1235,6 @@ int udp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 	int is_udplite = IS_UDPLITE(sk);
 	bool slow;
 
-	/*
-	 *	Check any passed addresses
-	 */
-	if (addr_len)
-		*addr_len = sizeof(*sin);
-
 	if (flags & MSG_ERRQUEUE)
 		return ip_recv_error(sk, msg, len);
 
@@ -1302,6 +1296,7 @@ try_again:
 		sin->sin_port = udp_hdr(skb)->source;
 		sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
 		memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
+		*addr_len = sizeof(*sin);
 	}
 	if (inet->cmsg_flags)
 		ip_cmsg_recv(msg, skb);
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index 3c00842b0079..e24ff1df0401 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -465,9 +465,6 @@ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk,
 	if (flags & MSG_OOB)
 		return -EOPNOTSUPP;
 
-	if (addr_len)
-		*addr_len=sizeof(*sin6);
-
 	if (flags & MSG_ERRQUEUE)
 		return ipv6_recv_error(sk, msg, len);
 
@@ -506,6 +503,7 @@ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk,
 		sin6->sin6_flowinfo = 0;
 		sin6->sin6_scope_id = ipv6_iface_scope_id(&sin6->sin6_addr,
 							  IP6CB(skb)->iif);
+		*addr_len = sizeof(*sin6);
 	}
 
 	sock_recv_ts_and_drops(msg, sk, skb);
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index f3893e897f72..81eb8cf8389b 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -392,9 +392,6 @@ int udpv6_recvmsg(struct kiocb *iocb, struct sock *sk,
 	int is_udp4;
 	bool slow;
 
-	if (addr_len)
-		*addr_len = sizeof(struct sockaddr_in6);
-
 	if (flags & MSG_ERRQUEUE)
 		return ipv6_recv_error(sk, msg, len);
 
@@ -480,7 +477,7 @@ try_again:
 				ipv6_iface_scope_id(&sin6->sin6_addr,
 						    IP6CB(skb)->iif);
 		}
-
+		*addr_len = sizeof(*sin6);
 	}
 	if (is_udp4) {
 		if (inet->cmsg_flags)
diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
index 571db8dd2292..da1a1cee1a08 100644
--- a/net/l2tp/l2tp_ip.c
+++ b/net/l2tp/l2tp_ip.c
@@ -518,9 +518,6 @@ static int l2tp_ip_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *m
 	if (flags & MSG_OOB)
 		goto out;
 
-	if (addr_len)
-		*addr_len = sizeof(*sin);
-
 	skb = skb_recv_datagram(sk, flags, noblock, &err);
 	if (!skb)
 		goto out;
@@ -543,6 +540,7 @@ static int l2tp_ip_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *m
 		sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
 		sin->sin_port = 0;
 		memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
+		*addr_len = sizeof(*sin);
 	}
 	if (inet->cmsg_flags)
 		ip_cmsg_recv(msg, skb);
diff --git a/net/phonet/datagram.c b/net/phonet/datagram.c
index 12c30f3e643e..38946b26e471 100644
--- a/net/phonet/datagram.c
+++ b/net/phonet/datagram.c
@@ -139,9 +139,6 @@ static int pn_recvmsg(struct kiocb *iocb, struct sock *sk,
 			MSG_CMSG_COMPAT))
 		goto out_nofree;
 
-	if (addr_len)
-		*addr_len = sizeof(sa);
-
 	skb = skb_recv_datagram(sk, flags, noblock, &rval);
 	if (skb == NULL)
 		goto out_nofree;
@@ -162,8 +159,10 @@ static int pn_recvmsg(struct kiocb *iocb, struct sock *sk,
 
 	rval = (flags & MSG_TRUNC) ? skb->len : copylen;
 
-	if (msg->msg_name != NULL)
-		memcpy(msg->msg_name, &sa, sizeof(struct sockaddr_pn));
+	if (msg->msg_name != NULL) {
+		memcpy(msg->msg_name, &sa, sizeof(sa));
+		*addr_len = sizeof(sa);
+	}
 
 out:
 	skb_free_datagram(sk, skb);
-- 
cgit 


From 3b1bace9960b0acbcb5d0ca194077f03df7cc2c0 Mon Sep 17 00:00:00 2001
From: "Geyslan G. Bem" <geyslan@gmail.com>
Date: Fri, 15 Nov 2013 09:21:47 -0300
Subject: brcmfmac: fix possible memory leak

Free temporary 'chanspecs' avoiding leakage.

Signed-off-by: Geyslan G. Bem <geyslan@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 drivers/net/wireless/brcm80211/brcmfmac/p2p.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
index d7a974532909..fcc5e7cfb492 100644
--- a/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
+++ b/drivers/net/wireless/brcm80211/brcmfmac/p2p.c
@@ -823,6 +823,7 @@ static s32 brcmf_p2p_run_escan(struct brcmf_cfg80211_info *cfg,
 		}
 		err = brcmf_p2p_escan(p2p, num_nodfs, chanspecs, search_state,
 				      action, P2PAPI_BSSCFG_DEVICE);
+		kfree(chanspecs);
 	}
 exit:
 	if (err)
-- 
cgit 


From 029b234fb34d53e11cadd8c1f530107f557e1aca Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Mon, 18 Nov 2013 20:54:58 +0100
Subject: genetlink: rename shadowed variable

Sparse pointed out that the new flags variable I had added
shadowed an existing one, rename the new one to avoid that,
making the code clearer.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/netlink/genetlink.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index f07eb568a1db..f54215d7b8f3 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -647,21 +647,21 @@ static int ctrl_fill_info(struct genl_family *family, u32 portid, u32 seq,
 		for (i = 0; i < family->n_ops; i++) {
 			struct nlattr *nest;
 			const struct genl_ops *ops = &family->ops[i];
-			u32 flags = ops->flags;
+			u32 op_flags = ops->flags;
 
 			if (ops->dumpit)
-				flags |= GENL_CMD_CAP_DUMP;
+				op_flags |= GENL_CMD_CAP_DUMP;
 			if (ops->doit)
-				flags |= GENL_CMD_CAP_DO;
+				op_flags |= GENL_CMD_CAP_DO;
 			if (ops->policy)
-				flags |= GENL_CMD_CAP_HASPOL;
+				op_flags |= GENL_CMD_CAP_HASPOL;
 
 			nest = nla_nest_start(skb, i + 1);
 			if (nest == NULL)
 				goto nla_put_failure;
 
 			if (nla_put_u32(skb, CTRL_ATTR_OP_ID, ops->cmd) ||
-			    nla_put_u32(skb, CTRL_ATTR_OP_FLAGS, flags))
+			    nla_put_u32(skb, CTRL_ATTR_OP_FLAGS, op_flags))
 				goto nla_put_failure;
 
 			nla_nest_end(skb, nest);
-- 
cgit 


From 30a83695aa2ed3ffb1445d6daef1e620c3ca4e6d Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Mon, 28 Oct 2013 19:43:57 -0700
Subject: watchdog: w83627hf: Convert to watchdog infrastructure

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/Kconfig        |   1 +
 drivers/watchdog/w83627hf_wdt.c | 215 +++++++++-------------------------------
 2 files changed, 48 insertions(+), 168 deletions(-)

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 74f29a2fc51c..5be6e919f785 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -885,6 +885,7 @@ config VIA_WDT
 config W83627HF_WDT
 	tristate "W83627HF/W83627DHG Watchdog Timer"
 	depends on X86
+	select WATCHDOG_CORE
 	---help---
 	  This is the driver for the hardware watchdog on the W83627HF chipset
 	  as used in Advantech PC-9578 and Tyan S2721-533 motherboards
diff --git a/drivers/watchdog/w83627hf_wdt.c b/drivers/watchdog/w83627hf_wdt.c
index da6781c12523..ab5ec6d84b16 100644
--- a/drivers/watchdog/w83627hf_wdt.c
+++ b/drivers/watchdog/w83627hf_wdt.c
@@ -1,6 +1,9 @@
 /*
  *	w83627hf/thf WDT driver
  *
+ *	(c) Copyright 2013 Guenter Roeck
+ *		converted to watchdog infrastructure
+ *
  *	(c) Copyright 2007 Vlad Drukker <vlad@storewiz.com>
  *		added support for W83627THF.
  *
@@ -31,31 +34,22 @@
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/types.h>
-#include <linux/miscdevice.h>
 #include <linux/watchdog.h>
-#include <linux/fs.h>
 #include <linux/ioport.h>
 #include <linux/notifier.h>
 #include <linux/reboot.h>
 #include <linux/init.h>
-#include <linux/spinlock.h>
 #include <linux/io.h>
-#include <linux/uaccess.h>
-
 
 #define WATCHDOG_NAME "w83627hf/thf/hg/dhg WDT"
 #define WATCHDOG_TIMEOUT 60		/* 60 sec default timeout */
 
-static unsigned long wdt_is_open;
-static char expect_close;
-static DEFINE_SPINLOCK(io_lock);
-
 /* You must set this - there is no sane way to probe for this board. */
 static int wdt_io = 0x2E;
 module_param(wdt_io, int, 0);
 MODULE_PARM_DESC(wdt_io, "w83627hf/thf WDT io port (default 0x2E)");
 
-static int timeout = WATCHDOG_TIMEOUT;	/* in seconds */
+static int timeout;			/* in seconds */
 module_param(timeout, int, 0);
 MODULE_PARM_DESC(timeout,
 		"Watchdog timeout in seconds. 1 <= timeout <= 255, default="
@@ -110,7 +104,7 @@ static void w83627hf_unselect_wd_register(void)
 /* tyan motherboards seem to set F5 to 0x4C ?
  * So explicitly init to appropriate value. */
 
-static void w83627hf_init(void)
+static void w83627hf_init(struct watchdog_device *wdog)
 {
 	unsigned char t;
 
@@ -120,8 +114,8 @@ static void w83627hf_init(void)
 	t = inb_p(WDT_EFDR);      /* read CRF6 */
 	if (t != 0) {
 		pr_info("Watchdog already running. Resetting timeout to %d sec\n",
-			timeout);
-		outb_p(timeout, WDT_EFDR);    /* Write back to CRF6 */
+			wdog->timeout);
+		outb_p(wdog->timeout, WDT_EFDR);	/* Write back to CRF6 */
 	}
 
 	outb_p(0xF5, WDT_EFER); /* Select CRF5 */
@@ -141,10 +135,8 @@ static void w83627hf_init(void)
 	w83627hf_unselect_wd_register();
 }
 
-static void wdt_set_time(int timeout)
+static int wdt_set_time(unsigned int timeout)
 {
-	spin_lock(&io_lock);
-
 	w83627hf_select_wd_register();
 
 	outb_p(0xF6, WDT_EFER);    /* Select CRF6 */
@@ -152,34 +144,29 @@ static void wdt_set_time(int timeout)
 
 	w83627hf_unselect_wd_register();
 
-	spin_unlock(&io_lock);
+	return 0;
 }
 
-static int wdt_ping(void)
+static int wdt_start(struct watchdog_device *wdog)
 {
-	wdt_set_time(timeout);
-	return 0;
+	return wdt_set_time(wdog->timeout);
 }
 
-static int wdt_disable(void)
+static int wdt_stop(struct watchdog_device *wdog)
 {
-	wdt_set_time(0);
-	return 0;
+	return wdt_set_time(0);
 }
 
-static int wdt_set_heartbeat(int t)
+static int wdt_set_timeout(struct watchdog_device *wdog, unsigned int timeout)
 {
-	if (t < 1 || t > 255)
-		return -EINVAL;
-	timeout = t;
+	wdog->timeout = timeout;
+
 	return 0;
 }
 
-static int wdt_get_time(void)
+static unsigned int wdt_get_time(struct watchdog_device *wdog)
 {
-	int timeleft;
-
-	spin_lock(&io_lock);
+	unsigned int timeleft;
 
 	w83627hf_select_wd_register();
 
@@ -188,124 +175,17 @@ static int wdt_get_time(void)
 
 	w83627hf_unselect_wd_register();
 
-	spin_unlock(&io_lock);
-
 	return timeleft;
 }
 
-static ssize_t wdt_write(struct file *file, const char __user *buf,
-						size_t count, loff_t *ppos)
-{
-	if (count) {
-		if (!nowayout) {
-			size_t i;
-
-			expect_close = 0;
-
-			for (i = 0; i != count; i++) {
-				char c;
-				if (get_user(c, buf + i))
-					return -EFAULT;
-				if (c == 'V')
-					expect_close = 42;
-			}
-		}
-		wdt_ping();
-	}
-	return count;
-}
-
-static long wdt_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-{
-	void __user *argp = (void __user *)arg;
-	int __user *p = argp;
-	int timeval;
-	static const struct watchdog_info ident = {
-		.options = WDIOF_KEEPALIVEPING | WDIOF_SETTIMEOUT |
-							WDIOF_MAGICCLOSE,
-		.firmware_version = 1,
-		.identity = "W83627HF WDT",
-	};
-
-	switch (cmd) {
-	case WDIOC_GETSUPPORT:
-		if (copy_to_user(argp, &ident, sizeof(ident)))
-			return -EFAULT;
-		break;
-	case WDIOC_GETSTATUS:
-	case WDIOC_GETBOOTSTATUS:
-		return put_user(0, p);
-	case WDIOC_SETOPTIONS:
-	{
-		int options, retval = -EINVAL;
-
-		if (get_user(options, p))
-			return -EFAULT;
-		if (options & WDIOS_DISABLECARD) {
-			wdt_disable();
-			retval = 0;
-		}
-		if (options & WDIOS_ENABLECARD) {
-			wdt_ping();
-			retval = 0;
-		}
-		return retval;
-	}
-	case WDIOC_KEEPALIVE:
-		wdt_ping();
-		break;
-	case WDIOC_SETTIMEOUT:
-		if (get_user(timeval, p))
-			return -EFAULT;
-		if (wdt_set_heartbeat(timeval))
-			return -EINVAL;
-		wdt_ping();
-		/* Fall */
-	case WDIOC_GETTIMEOUT:
-		return put_user(timeout, p);
-	case WDIOC_GETTIMELEFT:
-		timeval = wdt_get_time();
-		return put_user(timeval, p);
-	default:
-		return -ENOTTY;
-	}
-	return 0;
-}
-
-static int wdt_open(struct inode *inode, struct file *file)
-{
-	if (test_and_set_bit(0, &wdt_is_open))
-		return -EBUSY;
-	/*
-	 *	Activate
-	 */
-
-	wdt_ping();
-	return nonseekable_open(inode, file);
-}
-
-static int wdt_close(struct inode *inode, struct file *file)
-{
-	if (expect_close == 42)
-		wdt_disable();
-	else {
-		pr_crit("Unexpected close, not stopping watchdog!\n");
-		wdt_ping();
-	}
-	expect_close = 0;
-	clear_bit(0, &wdt_is_open);
-	return 0;
-}
-
 /*
  *	Notifier for system down
  */
-
 static int wdt_notify_sys(struct notifier_block *this, unsigned long code,
 	void *unused)
 {
 	if (code == SYS_DOWN || code == SYS_HALT)
-		wdt_disable();	/* Turn the WDT off */
+		wdt_set_time(0);	/* Turn the WDT off */
 
 	return NOTIFY_DONE;
 }
@@ -314,19 +194,25 @@ static int wdt_notify_sys(struct notifier_block *this, unsigned long code,
  *	Kernel Interfaces
  */
 
-static const struct file_operations wdt_fops = {
-	.owner		= THIS_MODULE,
-	.llseek		= no_llseek,
-	.write		= wdt_write,
-	.unlocked_ioctl	= wdt_ioctl,
-	.open		= wdt_open,
-	.release	= wdt_close,
+static struct watchdog_info wdt_info = {
+	.options = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING | WDIOF_MAGICCLOSE,
+	.identity = "W83627HF Watchdog",
 };
 
-static struct miscdevice wdt_miscdev = {
-	.minor = WATCHDOG_MINOR,
-	.name = "watchdog",
-	.fops = &wdt_fops,
+static struct watchdog_ops wdt_ops = {
+	.owner = THIS_MODULE,
+	.start = wdt_start,
+	.stop = wdt_stop,
+	.set_timeout = wdt_set_timeout,
+	.get_timeleft = wdt_get_time,
+};
+
+static struct watchdog_device wdt_dev = {
+	.info = &wdt_info,
+	.ops = &wdt_ops,
+	.timeout = WATCHDOG_TIMEOUT,
+	.min_timeout = 1,
+	.max_timeout = 255,
 };
 
 /*
@@ -344,19 +230,15 @@ static int __init wdt_init(void)
 
 	pr_info("WDT driver for the Winbond(TM) W83627HF/THF/HG/DHG Super I/O chip initialising\n");
 
-	if (wdt_set_heartbeat(timeout)) {
-		wdt_set_heartbeat(WATCHDOG_TIMEOUT);
-		pr_info("timeout value must be 1 <= timeout <= 255, using %d\n",
-			WATCHDOG_TIMEOUT);
-	}
-
 	if (!request_region(wdt_io, 1, WATCHDOG_NAME)) {
 		pr_err("I/O address 0x%04x already in use\n", wdt_io);
-		ret = -EIO;
-		goto out;
+		return -EIO;
 	}
 
-	w83627hf_init();
+	watchdog_init_timeout(&wdt_dev, timeout, NULL);
+	watchdog_set_nowayout(&wdt_dev, nowayout);
+
+	w83627hf_init(&wdt_dev);
 
 	ret = register_reboot_notifier(&wdt_notifier);
 	if (ret != 0) {
@@ -364,28 +246,25 @@ static int __init wdt_init(void)
 		goto unreg_regions;
 	}
 
-	ret = misc_register(&wdt_miscdev);
-	if (ret != 0) {
-		pr_err("cannot register miscdev on minor=%d (err=%d)\n",
-		       WATCHDOG_MINOR, ret);
+	ret = watchdog_register_device(&wdt_dev);
+	if (ret)
 		goto unreg_reboot;
-	}
 
 	pr_info("initialized. timeout=%d sec (nowayout=%d)\n",
-		timeout, nowayout);
+		wdt_dev.timeout, nowayout);
 
-out:
 	return ret;
+
 unreg_reboot:
 	unregister_reboot_notifier(&wdt_notifier);
 unreg_regions:
 	release_region(wdt_io, 1);
-	goto out;
+	return ret;
 }
 
 static void __exit wdt_exit(void)
 {
-	misc_deregister(&wdt_miscdev);
+	watchdog_unregister_device(&wdt_dev);
 	unregister_reboot_notifier(&wdt_notifier);
 	release_region(wdt_io, 1);
 }
-- 
cgit 


From 8f526389599fc543b204c12a36de8345eb298085 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sat, 17 Aug 2013 13:58:40 -0700
Subject: watchdog: w83627hf: Enable watchdog only once

It is unnecessary to enable the logical device and WDT0 each time
the watchdog is accessed. Do it only once during initialization.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/w83627hf_wdt.c | 35 +++++++++++++++++------------------
 1 file changed, 17 insertions(+), 18 deletions(-)

diff --git a/drivers/watchdog/w83627hf_wdt.c b/drivers/watchdog/w83627hf_wdt.c
index ab5ec6d84b16..910d43736821 100644
--- a/drivers/watchdog/w83627hf_wdt.c
+++ b/drivers/watchdog/w83627hf_wdt.c
@@ -72,28 +72,10 @@ MODULE_PARM_DESC(nowayout,
 
 static void w83627hf_select_wd_register(void)
 {
-	unsigned char c;
 	outb_p(0x87, WDT_EFER); /* Enter extended function mode */
 	outb_p(0x87, WDT_EFER); /* Again according to manual */
-
-	outb(0x20, WDT_EFER);	/* check chip version	*/
-	c = inb(WDT_EFDR);
-	if (c == 0x82) {	/* W83627THF		*/
-		outb_p(0x2b, WDT_EFER); /* select GPIO3 */
-		c = ((inb_p(WDT_EFDR) & 0xf7) | 0x04); /* select WDT0 */
-		outb_p(0x2b, WDT_EFER);
-		outb_p(c, WDT_EFDR);	/* set GPIO3 to WDT0 */
-	} else if (c == 0x88 || c == 0xa0) {	/* W83627EHF / W83627DHG */
-		outb_p(0x2d, WDT_EFER); /* select GPIO5 */
-		c = inb_p(WDT_EFDR) & ~0x01; /* PIN77 -> WDT0# */
-		outb_p(0x2d, WDT_EFER);
-		outb_p(c, WDT_EFDR); /* set GPIO5 to WDT0 */
-	}
-
 	outb_p(0x07, WDT_EFER); /* point to logical device number reg */
 	outb_p(0x08, WDT_EFDR); /* select logical device 8 (GPIO2) */
-	outb_p(0x30, WDT_EFER); /* select CR30 */
-	outb_p(0x01, WDT_EFDR); /* set bit 0 to activate GPIO2 */
 }
 
 static void w83627hf_unselect_wd_register(void)
@@ -110,6 +92,23 @@ static void w83627hf_init(struct watchdog_device *wdog)
 
 	w83627hf_select_wd_register();
 
+	outb(0x20, WDT_EFER);	/* check chip version	*/
+	t = inb(WDT_EFDR);
+	if (t == 0x82) {	/* W83627THF		*/
+		outb_p(0x2b, WDT_EFER); /* select GPIO3 */
+		t = ((inb_p(WDT_EFDR) & 0xf7) | 0x04); /* select WDT0 */
+		outb_p(0x2b, WDT_EFER);
+		outb_p(t, WDT_EFDR);	/* set GPIO3 to WDT0 */
+	} else if (t == 0x88 || t == 0xa0) {	/* W83627EHF / W83627DHG */
+		outb_p(0x2d, WDT_EFER); /* select GPIO5 */
+		t = inb_p(WDT_EFDR) & ~0x01; /* PIN77 -> WDT0# */
+		outb_p(0x2d, WDT_EFER);
+		outb_p(t, WDT_EFDR); /* set GPIO5 to WDT0 */
+	}
+
+	outb_p(0x30, WDT_EFER); /* select CR30 */
+	outb_p(0x01, WDT_EFDR); /* set bit 0 to activate GPIO2 */
+
 	outb_p(0xF6, WDT_EFER); /* Select CRF6 */
 	t = inb_p(WDT_EFDR);      /* read CRF6 */
 	if (t != 0) {
-- 
cgit 


From ac461103c57ac46cd6778f1fd0352ff0e4a2d38e Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sat, 17 Aug 2013 13:58:41 -0700
Subject: watchdog: w83627hf: Enable watchdog device only if not already
 enabled

There is no need to enable the watchdog device if it is already enabled.
Also, when enabling the watchdog device, only set the watchdog device
enable bit and do not touch other bits; depending on the chip type,
those bits may enable other functionality.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/w83627hf_wdt.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/watchdog/w83627hf_wdt.c b/drivers/watchdog/w83627hf_wdt.c
index 910d43736821..c5d34f46e7ad 100644
--- a/drivers/watchdog/w83627hf_wdt.c
+++ b/drivers/watchdog/w83627hf_wdt.c
@@ -107,7 +107,9 @@ static void w83627hf_init(struct watchdog_device *wdog)
 	}
 
 	outb_p(0x30, WDT_EFER); /* select CR30 */
-	outb_p(0x01, WDT_EFDR); /* set bit 0 to activate GPIO2 */
+	t = inb(WDT_EFDR);
+	if (!(t & 0x01))
+		outb_p(t | 0x01, WDT_EFDR); /* set bit 0 to activate GPIO2 */
 
 	outb_p(0xF6, WDT_EFER); /* Select CRF6 */
 	t = inb_p(WDT_EFDR);      /* read CRF6 */
-- 
cgit 


From ef0c1a6b1b05f85f0a1cf6ef283512fd25d86ad4 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Sat, 17 Aug 2013 13:58:42 -0700
Subject: watchdog: w83627hf: Use helper functions to access superio registers

Use helper functions named similar to other drivers to access
superio registers.

Request memory region only when needed, and use request_muxed_region().
This lets other devices (hwmon, gpio) use the same region.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
---
 drivers/watchdog/w83627hf_wdt.c | 132 +++++++++++++++++++++++-----------------
 1 file changed, 76 insertions(+), 56 deletions(-)

diff --git a/drivers/watchdog/w83627hf_wdt.c b/drivers/watchdog/w83627hf_wdt.c
index c5d34f46e7ad..e24b21082874 100644
--- a/drivers/watchdog/w83627hf_wdt.c
+++ b/drivers/watchdog/w83627hf_wdt.c
@@ -70,80 +70,102 @@ MODULE_PARM_DESC(nowayout,
 							(same as EFER) */
 #define WDT_EFDR (WDT_EFIR+1) /* Extended Function Data Register */
 
-static void w83627hf_select_wd_register(void)
+#define W83627HF_LD_WDT		0x08
+
+static void superio_outb(int reg, int val)
+{
+	outb(reg, WDT_EFER);
+	outb(val, WDT_EFDR);
+}
+
+static inline int superio_inb(int reg)
+{
+	outb(reg, WDT_EFER);
+	return inb(WDT_EFDR);
+}
+
+static int superio_enter(void)
 {
+	if (!request_muxed_region(wdt_io, 2, WATCHDOG_NAME))
+		return -EBUSY;
+
 	outb_p(0x87, WDT_EFER); /* Enter extended function mode */
 	outb_p(0x87, WDT_EFER); /* Again according to manual */
-	outb_p(0x07, WDT_EFER); /* point to logical device number reg */
-	outb_p(0x08, WDT_EFDR); /* select logical device 8 (GPIO2) */
+
+	return 0;
 }
 
-static void w83627hf_unselect_wd_register(void)
+static void superio_select(int ld)
+{
+	superio_outb(0x07, ld);
+}
+
+static void superio_exit(void)
 {
 	outb_p(0xAA, WDT_EFER); /* Leave extended function mode */
+	release_region(wdt_io, 2);
 }
 
 /* tyan motherboards seem to set F5 to 0x4C ?
  * So explicitly init to appropriate value. */
 
-static void w83627hf_init(struct watchdog_device *wdog)
+static int w83627hf_init(struct watchdog_device *wdog)
 {
+	int ret;
 	unsigned char t;
 
-	w83627hf_select_wd_register();
+	ret = superio_enter();
+	if (ret)
+		return ret;
 
-	outb(0x20, WDT_EFER);	/* check chip version	*/
-	t = inb(WDT_EFDR);
+	superio_select(W83627HF_LD_WDT);
+	t = superio_inb(0x20);	/* check chip version	*/
 	if (t == 0x82) {	/* W83627THF		*/
-		outb_p(0x2b, WDT_EFER); /* select GPIO3 */
-		t = ((inb_p(WDT_EFDR) & 0xf7) | 0x04); /* select WDT0 */
-		outb_p(0x2b, WDT_EFER);
-		outb_p(t, WDT_EFDR);	/* set GPIO3 to WDT0 */
+		t = (superio_inb(0x2b) & 0xf7);
+		superio_outb(0x2b, t | 0x04); /* set GPIO3 to WDT0 */
 	} else if (t == 0x88 || t == 0xa0) {	/* W83627EHF / W83627DHG */
-		outb_p(0x2d, WDT_EFER); /* select GPIO5 */
-		t = inb_p(WDT_EFDR) & ~0x01; /* PIN77 -> WDT0# */
-		outb_p(0x2d, WDT_EFER);
-		outb_p(t, WDT_EFDR); /* set GPIO5 to WDT0 */
+		t = superio_inb(0x2d);
+		superio_outb(0x2d, t & ~0x01);	/* set GPIO5 to WDT0 */
 	}
 
-	outb_p(0x30, WDT_EFER); /* select CR30 */
-	t = inb(WDT_EFDR);
+	/* set CR30 bit 0 to activate GPIO2 */
+	t = superio_inb(0x30);
 	if (!(t & 0x01))
-		outb_p(t | 0x01, WDT_EFDR); /* set bit 0 to activate GPIO2 */
+		superio_outb(0x30, t | 0x01);
 
-	outb_p(0xF6, WDT_EFER); /* Select CRF6 */
-	t = inb_p(WDT_EFDR);      /* read CRF6 */
+	t = superio_inb(0xF6);
 	if (t != 0) {
 		pr_info("Watchdog already running. Resetting timeout to %d sec\n",
 			wdog->timeout);
-		outb_p(wdog->timeout, WDT_EFDR);	/* Write back to CRF6 */
+		superio_outb(0xF6, wdog->timeout);
 	}
 
-	outb_p(0xF5, WDT_EFER); /* Select CRF5 */
-	t = inb_p(WDT_EFDR);      /* read CRF5 */
-	t &= ~0x0C;               /* set second mode & disable keyboard
-				    turning off watchdog */
-	t |= 0x02;		  /* enable the WDTO# output low pulse
-				    to the KBRST# pin (PIN60) */
-	outb_p(t, WDT_EFDR);    /* Write back to CRF5 */
-
-	outb_p(0xF7, WDT_EFER); /* Select CRF7 */
-	t = inb_p(WDT_EFDR);      /* read CRF7 */
-	t &= ~0xC0;               /* disable keyboard & mouse turning off
-				    watchdog */
-	outb_p(t, WDT_EFDR);    /* Write back to CRF7 */
-
-	w83627hf_unselect_wd_register();
+	/* set second mode & disable keyboard turning off watchdog */
+	t = superio_inb(0xF5) & ~0x0C;
+	/* enable the WDTO# output low pulse to the KBRST# pin */
+	t |= 0x02;
+	superio_outb(0xF5, t);
+
+	/* disable keyboard & mouse turning off watchdog */
+	t = superio_inb(0xF7) & ~0xC0;
+	superio_outb(0xF7, t);
+
+	superio_exit();
+
+	return 0;
 }
 
 static int wdt_set_time(unsigned int timeout)
 {
-	w83627hf_select_wd_register();
+	int ret;
 
-	outb_p(0xF6, WDT_EFER);    /* Select CRF6 */
-	outb_p(timeout, WDT_EFDR); /* Write Timeout counter to CRF6 */
+	ret = superio_enter();
+	if (ret)
+		return ret;
 
-	w83627hf_unselect_wd_register();
+	superio_select(W83627HF_LD_WDT);
+	superio_outb(0xF6, timeout);
+	superio_exit();
 
 	return 0;
 }
@@ -168,13 +190,15 @@ static int wdt_set_timeout(struct watchdog_device *wdog, unsigned int timeout)
 static unsigned int wdt_get_time(struct watchdog_device *wdog)
 {
 	unsigned int timeleft;
+	int ret;
 
-	w83627hf_select_wd_register();
-
-	outb_p(0xF6, WDT_EFER);    /* Select CRF6 */
-	timeleft = inb_p(WDT_EFDR); /* Read Timeout counter to CRF6 */
+	ret = superio_enter();
+	if (ret)
+		return 0;
 
-	w83627hf_unselect_wd_register();
+	superio_select(W83627HF_LD_WDT);
+	timeleft = superio_inb(0xF6);
+	superio_exit();
 
 	return timeleft;
 }
@@ -231,20 +255,19 @@ static int __init wdt_init(void)
 
 	pr_info("WDT driver for the Winbond(TM) W83627HF/THF/HG/DHG Super I/O chip initialising\n");
 
-	if (!request_region(wdt_io, 1, WATCHDOG_NAME)) {
-		pr_err("I/O address 0x%04x already in use\n", wdt_io);
-		return -EIO;
-	}
-
 	watchdog_init_timeout(&wdt_dev, timeout, NULL);
 	watchdog_set_nowayout(&wdt_dev, nowayout);
 
-	w83627hf_init(&wdt_dev);
+	ret = w83627hf_init(&wdt_dev);
+	if (ret) {
+		pr_err("failed to initialize watchdog (err=%d)\n", ret);
+		return ret;
+	}
 
 	ret = register_reboot_notifier(&wdt_notifier);
 	if (ret != 0) {
 		pr_err("cannot register reboot notifier (err=%d)\n", ret);
-		goto unreg_regions;
+		return ret;
 	}
 
 	ret = watchdog_register_device(&wdt_dev);
@@ -258,8 +281,6 @@ static int __init wdt_init(void)
 
 unreg_reboot:
 	unregister_reboot_notifier(&wdt_notifier);
-unreg_regions:
-	release_region(wdt_io, 1);
 	return ret;
 }
 
@@ -267,7 +288,6 @@ static void __exit wdt_exit(void)
 {
 	watchdog_unregister_device(&wdt_dev);
 	unregister_reboot_notifier(&wdt_notifier);
-	release_region(wdt_io, 1);
 }
 
 module_init(wdt_init);
-- 
cgit 


From eca42aaf898c31db1fd04850fb4dc584c9184c49 Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vyasevich@gmail.com>
Date: Sat, 16 Nov 2013 15:17:24 -0500
Subject: ipv6: Fix inet6_init() cleanup order

Commit 6d0bfe22611602f36617bc7aa2ffa1bbb2f54c67
	net: ipv6: Add IPv6 support to the ping socket

introduced a change in the cleanup logic of inet6_init and
has a bug in that ipv6_packet_cleanup() may not be called.
Fix the cleanup ordering.

CC: Hannes Frederic Sowa <hannes@stressinduktion.org>
CC: Lorenzo Colitti <lorenzo@google.com>
CC: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Vlad Yasevich <vyasevich@gmail.com>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/af_inet6.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index 6468bda1f2b9..56ca35b30dda 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -958,10 +958,10 @@ out:
 
 #ifdef CONFIG_SYSCTL
 sysctl_fail:
-	ipv6_packet_cleanup();
+	pingv6_exit();
 #endif
 pingv6_fail:
-	pingv6_exit();
+	ipv6_packet_cleanup();
 ipv6_packet_fail:
 	tcpv6_exit();
 tcpv6_fail:
-- 
cgit 


From a0d307b21025106157709521d5b88831530e2112 Mon Sep 17 00:00:00 2001
From: Dmitry Kravkov <dmitry@broadcom.com>
Date: Sun, 17 Nov 2013 08:59:26 +0200
Subject: bnx2x: Clean the sp rtnl task upon unload

While unloading, bnx2x needs to clean the sp_rtnl_state to prevent
configuration made before the unload to be applied afterwards with
stale values.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index dcafbda3e5be..ec96130533cc 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -2959,6 +2959,10 @@ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link)
 
 	bp->port.pmf = 0;
 
+	/* clear pending work in rtnl task */
+	bp->sp_rtnl_state = 0;
+	smp_mb();
+
 	/* Free SKBs, SGEs, TPA pool and driver internals */
 	bnx2x_free_skbs(bp);
 	if (CNIC_LOADED(bp))
-- 
cgit 


From 9dcd9acd69b1321fa008c3ce3ec299d04cd46774 Mon Sep 17 00:00:00 2001
From: Dmitry Kravkov <dmitry@broadcom.com>
Date: Sun, 17 Nov 2013 08:59:27 +0200
Subject: bnx2x: Prevent panic during DMAE timeout

If chip enters a recovery flow just after the driver issues a DMAE request
the DMAE will timeout. Current code will cause a bnx2x_panic() as a result,
which means interface will no longer be usable (regardless of the recovery
results), as bnx2x_panic() is irreversible for the driver.

As this is a possible flow, the panic should be reached only when driver
is compiled with STOP_ON_ERROR.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c |  8 ++++++++
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h  | 11 +++++++++++
 2 files changed, 19 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index bb2f20291509..a4c2dc295344 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -577,7 +577,9 @@ void bnx2x_write_dmae(struct bnx2x *bp, dma_addr_t dma_addr, u32 dst_addr,
 	rc = bnx2x_issue_dmae_with_comp(bp, &dmae, bnx2x_sp(bp, wb_comp));
 	if (rc) {
 		BNX2X_ERR("DMAE returned failure %d\n", rc);
+#ifdef BNX2X_STOP_ON_ERROR
 		bnx2x_panic();
+#endif
 	}
 }
 
@@ -614,7 +616,9 @@ void bnx2x_read_dmae(struct bnx2x *bp, u32 src_addr, u32 len32)
 	rc = bnx2x_issue_dmae_with_comp(bp, &dmae, bnx2x_sp(bp, wb_comp));
 	if (rc) {
 		BNX2X_ERR("DMAE returned failure %d\n", rc);
+#ifdef BNX2X_STOP_ON_ERROR
 		bnx2x_panic();
+#endif
 	}
 }
 
@@ -9352,6 +9356,10 @@ static int bnx2x_process_kill(struct bnx2x *bp, bool global)
 	bnx2x_process_kill_chip_reset(bp, global);
 	barrier();
 
+	/* clear errors in PGB */
+	if (!CHIP_IS_E1x(bp))
+		REG_WR(bp, PGLUE_B_REG_LATCHED_ERRORS_CLR, 0x7f);
+
 	/* Recover after reset: */
 	/* MCP */
 	if (global && bnx2x_reset_mcp_comp(bp, val))
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
index 5ecf267dc4cc..3efbb35267c8 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_reg.h
@@ -2864,6 +2864,17 @@
 #define PGLUE_B_REG_INTERNAL_PFID_ENABLE_TARGET_READ		 0x9430
 #define PGLUE_B_REG_INTERNAL_PFID_ENABLE_TARGET_WRITE		 0x9434
 #define PGLUE_B_REG_INTERNAL_VFID_ENABLE			 0x9438
+/* [W 7] Writing 1 to each bit in this register clears a corresponding error
+ * details register and enables logging new error details. Bit 0 - clears
+ * INCORRECT_RCV_DETAILS; Bit 1 - clears RX_ERR_DETAILS; Bit 2 - clears
+ * TX_ERR_WR_ADD_31_0 TX_ERR_WR_ADD_63_32 TX_ERR_WR_DETAILS
+ * TX_ERR_WR_DETAILS2 TX_ERR_RD_ADD_31_0 TX_ERR_RD_ADD_63_32
+ * TX_ERR_RD_DETAILS TX_ERR_RD_DETAILS2 TX_ERR_WR_DETAILS_ICPL; Bit 3 -
+ * clears VF_LENGTH_VIOLATION_DETAILS. Bit 4 - clears
+ * VF_GRC_SPACE_VIOLATION_DETAILS. Bit 5 - clears RX_TCPL_ERR_DETAILS. Bit 6
+ * - clears TCPL_IN_TWO_RCBS_DETAILS. */
+#define PGLUE_B_REG_LATCHED_ERRORS_CLR				 0x943c
+
 /* [R 9] Interrupt register #0 read */
 #define PGLUE_B_REG_PGLUE_B_INT_STS				 0x9298
 /* [RC 9] Interrupt register #0 read clear */
-- 
cgit 


From ffa1cb967f650b6ce5eace09ee9b1ae7c4015d18 Mon Sep 17 00:00:00 2001
From: Dmitry Kravkov <dmitry@broadcom.com>
Date: Sun, 17 Nov 2013 08:59:28 +0200
Subject: bnx2x: prevent CFC attention

During VF load, prior to sending messages on HW channel to PF the VF
checks its bulletin board to see whether the PF indicated it has closed;
If a closed PF is encountered, the VF skips sending the message.

Due to incorrect return values, there's a possible scenario in which the VF
finishes loading "successfully", while the PF hasn't actually fully configured
FW/HW for the VFs supposed configuration.
Once VF tries to send Tx packets, HW will raise an attention (and FW possibly
will start treat the VF as malicious).

The patch fails the loading process in such a scenario.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
index 9199adf32d33..efa8a151d789 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_vfpf.c
@@ -152,7 +152,7 @@ static int bnx2x_send_msg2pf(struct bnx2x *bp, u8 *done, dma_addr_t msg_mapping)
 	if (bp->old_bulletin.valid_bitmap & 1 << CHANNEL_DOWN) {
 		DP(BNX2X_MSG_IOV, "detecting channel down. Aborting message\n");
 		*done = PFVF_STATUS_SUCCESS;
-		return 0;
+		return -EINVAL;
 	}
 
 	/* Write message address */
-- 
cgit 


From 6ffa39f2f59e4555239cc23a3488ad789b557166 Mon Sep 17 00:00:00 2001
From: Dmitry Kravkov <dmitry@broadcom.com>
Date: Sun, 17 Nov 2013 08:59:29 +0200
Subject: bnx2x: Prevent "timeout waiting for state X"

Current driver release rtnl lock in between DCB re-configuration.
As a result, other flows (e.g., mtu config) may enter in between and fail
due to halted tx path for dcb configuration.

Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/bnx2x/bnx2x.h      | 1 -
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c  | 5 -----
 drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 9 ++++-----
 3 files changed, 4 insertions(+), 11 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
index 4e01c57d8c8d..a1f66e2c9a86 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x.h
@@ -1376,7 +1376,6 @@ enum {
 	BNX2X_SP_RTNL_RX_MODE,
 	BNX2X_SP_RTNL_HYPERVISOR_VLAN,
 	BNX2X_SP_RTNL_TX_STOP,
-	BNX2X_SP_RTNL_TX_RESUME,
 };
 
 struct bnx2x_prev_path_list {
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
index fcf2761d8828..fdace204b054 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_dcb.c
@@ -778,11 +778,6 @@ void bnx2x_dcbx_set_params(struct bnx2x *bp, u32 state)
 
 		/* ets may affect cmng configuration: reinit it in hw */
 		bnx2x_set_local_cmng(bp);
-
-		set_bit(BNX2X_SP_RTNL_TX_RESUME, &bp->sp_rtnl_state);
-
-		schedule_delayed_work(&bp->sp_rtnl_task, 0);
-
 		return;
 	case BNX2X_DCBX_STATE_TX_RELEASED:
 		DP(BNX2X_MSG_DCB, "BNX2X_DCBX_STATE_TX_RELEASED\n");
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index a4c2dc295344..8eb6469813c5 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -5235,18 +5235,18 @@ static void bnx2x_eq_int(struct bnx2x *bp)
 
 		case EVENT_RING_OPCODE_STOP_TRAFFIC:
 			DP(BNX2X_MSG_SP | BNX2X_MSG_DCB, "got STOP TRAFFIC\n");
+			bnx2x_dcbx_set_params(bp, BNX2X_DCBX_STATE_TX_PAUSED);
 			if (f_obj->complete_cmd(bp, f_obj,
 						BNX2X_F_CMD_TX_STOP))
 				break;
-			bnx2x_dcbx_set_params(bp, BNX2X_DCBX_STATE_TX_PAUSED);
 			goto next_spqe;
 
 		case EVENT_RING_OPCODE_START_TRAFFIC:
 			DP(BNX2X_MSG_SP | BNX2X_MSG_DCB, "got START TRAFFIC\n");
+			bnx2x_dcbx_set_params(bp, BNX2X_DCBX_STATE_TX_RELEASED);
 			if (f_obj->complete_cmd(bp, f_obj,
 						BNX2X_F_CMD_TX_START))
 				break;
-			bnx2x_dcbx_set_params(bp, BNX2X_DCBX_STATE_TX_RELEASED);
 			goto next_spqe;
 
 		case EVENT_RING_OPCODE_FUNCTION_UPDATE:
@@ -9714,11 +9714,10 @@ sp_rtnl_not_reset:
 			       &bp->sp_rtnl_state))
 		bnx2x_pf_set_vfs_vlan(bp);
 
-	if (test_and_clear_bit(BNX2X_SP_RTNL_TX_STOP, &bp->sp_rtnl_state))
+	if (test_and_clear_bit(BNX2X_SP_RTNL_TX_STOP, &bp->sp_rtnl_state)) {
 		bnx2x_dcbx_stop_hw_tx(bp);
-
-	if (test_and_clear_bit(BNX2X_SP_RTNL_TX_RESUME, &bp->sp_rtnl_state))
 		bnx2x_dcbx_resume_hw_tx(bp);
+	}
 
 	/* work which needs rtnl lock not-taken (as it takes the lock itself and
 	 * can be called from other contexts as well)
-- 
cgit 


From cf970c002d270c36202bd5b9c2804d3097a52da0 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Mon, 18 Nov 2013 07:07:45 +0100
Subject: ping: prevent NULL pointer dereference on write to msg_name

A plain read() on a socket does set msg->msg_name to NULL. So check for
NULL pointer first.

Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/ping.c | 34 +++++++++++++++++++---------------
 1 file changed, 19 insertions(+), 15 deletions(-)

diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index aacefa0caa36..91bfe0437e7a 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -870,11 +870,13 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 	if (family == AF_INET) {
 		struct sockaddr_in *sin = (struct sockaddr_in *)msg->msg_name;
 
-		sin->sin_family = AF_INET;
-		sin->sin_port = 0 /* skb->h.uh->source */;
-		sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
-		memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
-		*addr_len = sizeof(*sin);
+		if (sin) {
+			sin->sin_family = AF_INET;
+			sin->sin_port = 0 /* skb->h.uh->source */;
+			sin->sin_addr.s_addr = ip_hdr(skb)->saddr;
+			memset(sin->sin_zero, 0, sizeof(sin->sin_zero));
+			*addr_len = sizeof(*sin);
+		}
 
 		if (isk->cmsg_flags)
 			ip_cmsg_recv(msg, skb);
@@ -886,16 +888,18 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 		struct sockaddr_in6 *sin6 =
 			(struct sockaddr_in6 *)msg->msg_name;
 
-		sin6->sin6_family = AF_INET6;
-		sin6->sin6_port = 0;
-		sin6->sin6_addr = ip6->saddr;
-		sin6->sin6_flowinfo = 0;
-		if (np->sndflow)
-			sin6->sin6_flowinfo = ip6_flowinfo(ip6);
-
-		sin6->sin6_scope_id = ipv6_iface_scope_id(&sin6->sin6_addr,
-							  IP6CB(skb)->iif);
-		*addr_len = sizeof(*sin6);
+		if (sin6) {
+			sin6->sin6_family = AF_INET6;
+			sin6->sin6_port = 0;
+			sin6->sin6_addr = ip6->saddr;
+			sin6->sin6_flowinfo = 0;
+			if (np->sndflow)
+				sin6->sin6_flowinfo = ip6_flowinfo(ip6);
+			sin6->sin6_scope_id =
+				ipv6_iface_scope_id(&sin6->sin6_addr,
+						    IP6CB(skb)->iif);
+			*addr_len = sizeof(*sin6);
+		}
 
 		if (inet6_sk(sk)->rxopt.all)
 			pingv6_ops.ip6_datagram_recv_ctl(sk, msg, skb);
-- 
cgit 


From 0f13b66b01c6e2ec4913a7812414183844d1cc4f Mon Sep 17 00:00:00 2001
From: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Date: Mon, 18 Nov 2013 21:19:27 +0800
Subject: net, virtio_net: replace the magic value

It is more appropriate to use # of queue pairs currently used by
the driver instead of a magic value.

Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/virtio_net.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 69fb225e59a6..69ad42ba1538 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -1606,8 +1606,8 @@ static int virtnet_probe(struct virtio_device *vdev)
 	if (err)
 		goto free_stats;
 
-	netif_set_real_num_tx_queues(dev, 1);
-	netif_set_real_num_rx_queues(dev, 1);
+	netif_set_real_num_tx_queues(dev, vi->curr_queue_pairs);
+	netif_set_real_num_rx_queues(dev, vi->curr_queue_pairs);
 
 	err = register_netdev(dev);
 	if (err) {
-- 
cgit 


From 7a495cfd9b5f82c40608f26fe523dc9e8533dc14 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon, 18 Nov 2013 09:00:58 +0100
Subject: drm/i915/tv: add ->get_config callback
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

We need this to properly fill in adjusted_mode.crtc_clock, otherwise
the state checker gets unhappy. This seems to have been forgotten in
the big clock rework in

commit 18442d08786472c63a0a80c27f92b033dffc26de
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date:   Fri Sep 13 16:00:08 2013 +0300

    drm/i915: Fix port_clock and adjusted_mode.clock readout all over

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/i915/intel_tv.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index 18c406246a2d..22cf0f4ba248 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -902,6 +902,13 @@ intel_tv_mode_valid(struct drm_connector *connector,
 }
 
 
+static void
+intel_tv_get_config(struct intel_encoder *encoder,
+		    struct intel_crtc_config *pipe_config)
+{
+	pipe_config->adjusted_mode.crtc_clock = pipe_config->port_clock;
+}
+
 static bool
 intel_tv_compute_config(struct intel_encoder *encoder,
 			struct intel_crtc_config *pipe_config)
@@ -1621,6 +1628,7 @@ intel_tv_init(struct drm_device *dev)
 			 DRM_MODE_ENCODER_TVDAC);
 
 	intel_encoder->compute_config = intel_tv_compute_config;
+	intel_encoder->get_config = intel_tv_get_config;
 	intel_encoder->mode_set = intel_tv_mode_set;
 	intel_encoder->enable = intel_enable_tv;
 	intel_encoder->disable = intel_disable_tv;
-- 
cgit 


From 1d37b689b1c07c01101534e55ffcd43f69069355 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon, 18 Nov 2013 09:00:59 +0100
Subject: drm/i915: encoder->get_config is no longer optional
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

We must have one to fill out the adjusted_mode.crtc_clock. And with
the tv encoder fixed up every encoder we have has a ->get_config
callback. So we can drop the checks.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/i915/intel_display.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index c9882e816af8..de6edd0f6205 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -9252,8 +9252,7 @@ check_crtc_state(struct drm_device *dev)
 			enum pipe pipe;
 			if (encoder->base.crtc != &crtc->base)
 				continue;
-			if (encoder->get_config &&
-			    encoder->get_hw_state(encoder, &pipe))
+			if (encoder->get_hw_state(encoder, &pipe))
 				encoder->get_config(encoder, &pipe_config);
 		}
 
@@ -10913,8 +10912,7 @@ static void intel_modeset_readout_hw_state(struct drm_device *dev)
 		if (encoder->get_hw_state(encoder, &pipe)) {
 			crtc = to_intel_crtc(dev_priv->pipe_to_crtc_mapping[pipe]);
 			encoder->base.crtc = &crtc->base;
-			if (encoder->get_config)
-				encoder->get_config(encoder, &crtc->config);
+			encoder->get_config(encoder, &crtc->config);
 		} else {
 			encoder->base.crtc = NULL;
 		}
-- 
cgit 


From 012bd38740a9f6f956cdaa69a4b9534daddb70a5 Mon Sep 17 00:00:00 2001
From: Ajit Khaparde <ajit.khaparde@emulex.com>
Date: Mon, 18 Nov 2013 10:44:24 -0600
Subject: be2net: Fix unconditional enabling of Rx interface options

The driver currently requests the firmware to enable rx_interface options
without considering if the interface was created with that capability.
This could cause commands to firmware to fail.

To avoid this, enable only those options on an interface if the interface
was created with that capability.

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be_cmds.c | 16 ++++++++++++++--
 drivers/net/ethernet/emulex/benet/be_cmds.h |  2 +-
 drivers/net/ethernet/emulex/benet/be_main.c |  2 +-
 3 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index 7fb0edfe3d24..dbcd5262c016 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -1758,7 +1758,7 @@ err:
 
 /* Uses sycnhronous mcc */
 int be_cmd_vlan_config(struct be_adapter *adapter, u32 if_id, u16 *vtag_array,
-			u32 num, bool untagged, bool promiscuous)
+		       u32 num, bool promiscuous)
 {
 	struct be_mcc_wrb *wrb;
 	struct be_cmd_req_vlan_config *req;
@@ -1778,7 +1778,7 @@ int be_cmd_vlan_config(struct be_adapter *adapter, u32 if_id, u16 *vtag_array,
 
 	req->interface_id = if_id;
 	req->promiscuous = promiscuous;
-	req->untagged = untagged;
+	req->untagged = BE_IF_FLAGS_UNTAGGED & be_if_cap_flags(adapter) ? 1 : 0;
 	req->num_vlan = num;
 	if (!promiscuous) {
 		memcpy(req->normal_vlan, vtag_array,
@@ -1847,7 +1847,19 @@ int be_cmd_rx_filter(struct be_adapter *adapter, u32 flags, u32 value)
 			memcpy(req->mcast_mac[i++].byte, ha->addr, ETH_ALEN);
 	}
 
+	if ((req->if_flags_mask & cpu_to_le32(be_if_cap_flags(adapter))) !=
+	     req->if_flags_mask) {
+		dev_warn(&adapter->pdev->dev,
+			 "Cannot set rx filter flags 0x%x\n",
+			 req->if_flags_mask);
+		dev_warn(&adapter->pdev->dev,
+			 "Interface is capable of 0x%x flags only\n",
+			 be_if_cap_flags(adapter));
+	}
+	req->if_flags_mask &= cpu_to_le32(be_if_cap_flags(adapter));
+
 	status = be_mcc_notify_wait(adapter);
+
 err:
 	spin_unlock_bh(&adapter->mcc_lock);
 	return status;
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h
index edf3e8a0ff83..0075686276aa 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.h
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.h
@@ -1984,7 +1984,7 @@ int be_cmd_get_fw_ver(struct be_adapter *adapter, char *fw_ver,
 		      char *fw_on_flash);
 int be_cmd_modify_eqd(struct be_adapter *adapter, struct be_set_eqd *, int num);
 int be_cmd_vlan_config(struct be_adapter *adapter, u32 if_id, u16 *vtag_array,
-		       u32 num, bool untagged, bool promiscuous);
+		       u32 num, bool promiscuous);
 int be_cmd_rx_filter(struct be_adapter *adapter, u32 flags, u32 status);
 int be_cmd_set_flow_control(struct be_adapter *adapter, u32 tx_fc, u32 rx_fc);
 int be_cmd_get_flow_control(struct be_adapter *adapter, u32 *tx_fc, u32 *rx_fc);
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 741d3bff5ae7..13818d37bbbb 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -1079,7 +1079,7 @@ static int be_vid_config(struct be_adapter *adapter)
 			vids[num++] = cpu_to_le16(i);
 
 	status = be_cmd_vlan_config(adapter, adapter->if_handle,
-				    vids, num, 1, 0);
+				    vids, num, 0);
 
 	if (status) {
 		/* Set to VLAN promisc mode as setting VLAN filter failed */
-- 
cgit 


From d11a347de3f521af62da25e74156ea39e3774f19 Mon Sep 17 00:00:00 2001
From: Ajit Khaparde <ajit.khaparde@emulex.com>
Date: Mon, 18 Nov 2013 10:44:37 -0600
Subject: be2net: Delete secondary unicast MAC addresses during be_close

Secondary unicast MAC addresses will get deleted only when the interface is UP.
When the interface is DOWN, though these secondary MAC addresses are unusable
and awaiting to be deleted, cause the firmware to believe that they are being used.
If the user intends to set a MAC address as primary MAC from one of these
secondary MAC addresses, the firmware returns a MAC address Collision error.
Delete these secondary MAC addresses during be_close.

The secondary MAC addresses list will be refreshed during interface open anyway.

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be_main.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 13818d37bbbb..8e28cedf823b 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -2672,6 +2672,11 @@ static int be_close(struct net_device *netdev)
 
 	be_rx_qs_destroy(adapter);
 
+	for (i = 1; i < (adapter->uc_macs + 1); i++)
+		be_cmd_pmac_del(adapter, adapter->if_handle,
+				adapter->pmac_id[i], 0);
+	adapter->uc_macs = 0;
+
 	for_all_evt_queues(adapter, eqo, i) {
 		if (msix_enabled(adapter))
 			synchronize_irq(be_msix_vec_get(adapter, eqo));
-- 
cgit 


From c98d6c65e6e6bd24a12174fff6ca4990d346de5d Mon Sep 17 00:00:00 2001
From: Arnaud Ebalard <arno@natisbad.org>
Date: Sat, 9 Nov 2013 18:39:14 +0100
Subject: hwmon: (lm75) Add support for GMT G751 chip

This was tested on a NETGEAR ReadyNAS 2120 device (Marvell Armada XP
based board, via DT).

Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 Documentation/devicetree/bindings/i2c/trivial-devices.txt | 1 +
 drivers/hwmon/Kconfig                                     | 1 +
 drivers/hwmon/lm75.c                                      | 3 +++
 3 files changed, 5 insertions(+)

diff --git a/Documentation/devicetree/bindings/i2c/trivial-devices.txt b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
index ad6a73852f08..c98e5a2934d8 100644
--- a/Documentation/devicetree/bindings/i2c/trivial-devices.txt
+++ b/Documentation/devicetree/bindings/i2c/trivial-devices.txt
@@ -35,6 +35,7 @@ fsl,mc13892		MC13892: Power Management Integrated Circuit (PMIC) for i.MX35/51
 fsl,mma8450		MMA8450Q: Xtrinsic Low-power, 3-axis Xtrinsic Accelerometer
 fsl,mpr121		MPR121: Proximity Capacitive Touch Sensor Controller
 fsl,sgtl5000		SGTL5000: Ultra Low-Power Audio Codec
+gmt,g751		G751: Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface
 infineon,slb9635tt	Infineon SLB9635 (Soft-) I2C TPM (old protocol, max 100khz)
 infineon,slb9645tt	Infineon SLB9645 I2C TPM (new protocol, max 400khz)
 maxim,ds1050		5 Bit Programmable, Pulse-Width Modulator
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig
index b3ab9d43bb3e..52d548f1dc1d 100644
--- a/drivers/hwmon/Kconfig
+++ b/drivers/hwmon/Kconfig
@@ -656,6 +656,7 @@ config SENSORS_LM75
 
 		- Analog Devices ADT75
 		- Dallas Semiconductor DS75, DS1775 and DS7505
+		- Global Mixed-mode Technology (GMT) G751
 		- Maxim MAX6625 and MAX6626
 		- Microchip MCP980x
 		- National Semiconductor LM75, LM75A
diff --git a/drivers/hwmon/lm75.c b/drivers/hwmon/lm75.c
index c03b490bba81..7e3ef134f1d2 100644
--- a/drivers/hwmon/lm75.c
+++ b/drivers/hwmon/lm75.c
@@ -39,6 +39,7 @@ enum lm75_type {		/* keep sorted in alphabetical order */
 	ds1775,
 	ds75,
 	ds7505,
+	g751,
 	lm75,
 	lm75a,
 	max6625,
@@ -208,6 +209,7 @@ lm75_probe(struct i2c_client *client, const struct i2c_device_id *id)
 		data->resolution = 12;
 		data->sample_time = HZ / 4;
 		break;
+	case g751:
 	case lm75:
 	case lm75a:
 		data->resolution = 9;
@@ -296,6 +298,7 @@ static const struct i2c_device_id lm75_ids[] = {
 	{ "ds1775", ds1775, },
 	{ "ds75", ds75, },
 	{ "ds7505", ds7505, },
+	{ "g751", g751, },
 	{ "lm75", lm75, },
 	{ "lm75a", lm75a, },
 	{ "max6625", max6625, },
-- 
cgit 


From d1a284b7ed8124599e3b747fb2b86311761fb609 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Wed, 13 Nov 2013 12:46:20 -0800
Subject: hwmon: (nct6775) Monitor additional temperature registers

The number of SMIOVT registers on NCT6779 and NCT6791 is limited to 2.
As result, the driver may not report some of the temperatures used
for fan control. This can result in some of the pwmX_temp_sel or
pwm2_weight_temp_sel attributes to wrongly return 0.
Fortunately, the chip has registers to monitor those temperatures.
Add them to the list of temperatures to report.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/nct6775.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 60 insertions(+), 2 deletions(-)

diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index d17325db0ea3..3f4ef21010d5 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -274,6 +274,8 @@ static const u16 NCT6775_FAN_PULSE_SHIFT[] = { 0, 0, 0, 0, 0, 0 };
 static const u16 NCT6775_REG_TEMP[] = {
 	0x27, 0x150, 0x250, 0x62b, 0x62c, 0x62d };
 
+static const u16 NCT6775_REG_TEMP_MON[] = { 0x73, 0x75, 0x77 };
+
 static const u16 NCT6775_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
 	0, 0x152, 0x252, 0x628, 0x629, 0x62A };
 static const u16 NCT6775_REG_TEMP_HYST[ARRAY_SIZE(NCT6775_REG_TEMP)] = {
@@ -454,6 +456,7 @@ static const u16 NCT6779_REG_CRITICAL_PWM[] = {
 	0x137, 0x237, 0x337, 0x837, 0x937, 0xa37 };
 
 static const u16 NCT6779_REG_TEMP[] = { 0x27, 0x150 };
+static const u16 NCT6779_REG_TEMP_MON[] = { 0x73, 0x75, 0x77, 0x79, 0x7b };
 static const u16 NCT6779_REG_TEMP_CONFIG[ARRAY_SIZE(NCT6779_REG_TEMP)] = {
 	0x18, 0x152 };
 static const u16 NCT6779_REG_TEMP_HYST[ARRAY_SIZE(NCT6779_REG_TEMP)] = {
@@ -534,6 +537,7 @@ static const u16 NCT6106_REG_IN[] = {
 	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x07, 0x08, 0x09 };
 
 static const u16 NCT6106_REG_TEMP[] = { 0x10, 0x11, 0x12, 0x13, 0x14, 0x15 };
+static const u16 NCT6106_REG_TEMP_MON[] = { 0x18, 0x19, 0x1a };
 static const u16 NCT6106_REG_TEMP_HYST[] = {
 	0xc3, 0xc7, 0xcb, 0xcf, 0xd3, 0xd7 };
 static const u16 NCT6106_REG_TEMP_OVER[] = {
@@ -3253,9 +3257,9 @@ static int nct6775_probe(struct platform_device *pdev)
 	int i, s, err = 0;
 	int src, mask, available;
 	const u16 *reg_temp, *reg_temp_over, *reg_temp_hyst, *reg_temp_config;
-	const u16 *reg_temp_alternate, *reg_temp_crit;
+	const u16 *reg_temp_mon, *reg_temp_alternate, *reg_temp_crit;
 	const u16 *reg_temp_crit_l = NULL, *reg_temp_crit_h = NULL;
-	int num_reg_temp;
+	int num_reg_temp, num_reg_temp_mon;
 	u8 cr2a;
 	struct attribute_group *group;
 	struct device *hwmon_dev;
@@ -3338,7 +3342,9 @@ static int nct6775_probe(struct platform_device *pdev)
 		data->BEEP_BITS = NCT6106_BEEP_BITS;
 
 		reg_temp = NCT6106_REG_TEMP;
+		reg_temp_mon = NCT6106_REG_TEMP_MON;
 		num_reg_temp = ARRAY_SIZE(NCT6106_REG_TEMP);
+		num_reg_temp_mon = ARRAY_SIZE(NCT6106_REG_TEMP_MON);
 		reg_temp_over = NCT6106_REG_TEMP_OVER;
 		reg_temp_hyst = NCT6106_REG_TEMP_HYST;
 		reg_temp_config = NCT6106_REG_TEMP_CONFIG;
@@ -3410,7 +3416,9 @@ static int nct6775_probe(struct platform_device *pdev)
 		data->REG_BEEP = NCT6775_REG_BEEP;
 
 		reg_temp = NCT6775_REG_TEMP;
+		reg_temp_mon = NCT6775_REG_TEMP_MON;
 		num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP);
+		num_reg_temp_mon = ARRAY_SIZE(NCT6775_REG_TEMP_MON);
 		reg_temp_over = NCT6775_REG_TEMP_OVER;
 		reg_temp_hyst = NCT6775_REG_TEMP_HYST;
 		reg_temp_config = NCT6775_REG_TEMP_CONFIG;
@@ -3480,7 +3488,9 @@ static int nct6775_probe(struct platform_device *pdev)
 		data->REG_BEEP = NCT6776_REG_BEEP;
 
 		reg_temp = NCT6775_REG_TEMP;
+		reg_temp_mon = NCT6775_REG_TEMP_MON;
 		num_reg_temp = ARRAY_SIZE(NCT6775_REG_TEMP);
+		num_reg_temp_mon = ARRAY_SIZE(NCT6775_REG_TEMP_MON);
 		reg_temp_over = NCT6775_REG_TEMP_OVER;
 		reg_temp_hyst = NCT6775_REG_TEMP_HYST;
 		reg_temp_config = NCT6776_REG_TEMP_CONFIG;
@@ -3554,7 +3564,9 @@ static int nct6775_probe(struct platform_device *pdev)
 		data->REG_BEEP = NCT6776_REG_BEEP;
 
 		reg_temp = NCT6779_REG_TEMP;
+		reg_temp_mon = NCT6779_REG_TEMP_MON;
 		num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP);
+		num_reg_temp_mon = ARRAY_SIZE(NCT6779_REG_TEMP_MON);
 		reg_temp_over = NCT6779_REG_TEMP_OVER;
 		reg_temp_hyst = NCT6779_REG_TEMP_HYST;
 		reg_temp_config = NCT6779_REG_TEMP_CONFIG;
@@ -3628,7 +3640,9 @@ static int nct6775_probe(struct platform_device *pdev)
 		data->REG_BEEP = NCT6776_REG_BEEP;
 
 		reg_temp = NCT6779_REG_TEMP;
+		reg_temp_mon = NCT6779_REG_TEMP_MON;
 		num_reg_temp = ARRAY_SIZE(NCT6779_REG_TEMP);
+		num_reg_temp_mon = ARRAY_SIZE(NCT6779_REG_TEMP_MON);
 		reg_temp_over = NCT6779_REG_TEMP_OVER;
 		reg_temp_hyst = NCT6779_REG_TEMP_HYST;
 		reg_temp_config = NCT6779_REG_TEMP_CONFIG;
@@ -3729,6 +3743,50 @@ static int nct6775_probe(struct platform_device *pdev)
 		s++;
 	}
 
+	/*
+	 * Repeat with temperatures used for fan control.
+	 * This set of registers does not support limits.
+	 */
+	for (i = 0; i < num_reg_temp_mon; i++) {
+		if (reg_temp_mon[i] == 0)
+			continue;
+
+		src = nct6775_read_value(data, data->REG_TEMP_SEL[i]) & 0x1f;
+		if (!src || (mask & (1 << src)))
+			continue;
+
+		if (src >= data->temp_label_num ||
+		    !strlen(data->temp_label[src])) {
+			dev_info(dev,
+				 "Invalid temperature source %d at index %d, source register 0x%x, temp register 0x%x\n",
+				 src, i, data->REG_TEMP_SEL[i],
+				 reg_temp_mon[i]);
+			continue;
+		}
+
+		mask |= 1 << src;
+
+		/* Use fixed index for SYSTIN(1), CPUTIN(2), AUXTIN(3) */
+		if (src <= data->temp_fixed_num) {
+			if (data->have_temp & (1 << (src - 1)))
+				continue;
+			data->have_temp |= 1 << (src - 1);
+			data->have_temp_fixed |= 1 << (src - 1);
+			data->reg_temp[0][src - 1] = reg_temp_mon[i];
+			data->temp_src[src - 1] = src;
+			continue;
+		}
+
+		if (s >= NUM_TEMP)
+			continue;
+
+		/* Use dynamic index for other sources */
+		data->have_temp |= 1 << s;
+		data->reg_temp[0][s] = reg_temp_mon[i];
+		data->temp_src[s] = src;
+		s++;
+	}
+
 #ifdef USE_ALTERNATE
 	/*
 	 * Go through the list of alternate temp registers and enable
-- 
cgit 


From cc76dee17fc996cf23c3cebe543a2d1ea36aa89e Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Wed, 13 Nov 2013 12:47:17 -0800
Subject: hwmon: (nct6775) NCT6791 supports weight control only for CPUFAN

Unlike other chips supported by this driver, the NCT6791 only has a single
set of registers to configure weighted fan control. Enable it only for the
single channel supporting it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/nct6775.c | 29 +++++++++++++++++++++--------
 1 file changed, 21 insertions(+), 8 deletions(-)

diff --git a/drivers/hwmon/nct6775.c b/drivers/hwmon/nct6775.c
index 3f4ef21010d5..cf811c1a1475 100644
--- a/drivers/hwmon/nct6775.c
+++ b/drivers/hwmon/nct6775.c
@@ -510,6 +510,13 @@ static const u16 NCT6779_REG_TEMP_CRIT[ARRAY_SIZE(nct6779_temp_label) - 1]
 
 #define NCT6791_REG_HM_IO_SPACE_LOCK_ENABLE	0x28
 
+static const u16 NCT6791_REG_WEIGHT_TEMP_SEL[6] = { 0, 0x239 };
+static const u16 NCT6791_REG_WEIGHT_TEMP_STEP[6] = { 0, 0x23a };
+static const u16 NCT6791_REG_WEIGHT_TEMP_STEP_TOL[6] = { 0, 0x23b };
+static const u16 NCT6791_REG_WEIGHT_DUTY_STEP[6] = { 0, 0x23c };
+static const u16 NCT6791_REG_WEIGHT_TEMP_BASE[6] = { 0, 0x23d };
+static const u16 NCT6791_REG_WEIGHT_DUTY_BASE[6] = { 0, 0x23e };
+
 static const u16 NCT6791_REG_ALARM[NUM_REG_ALARM] = {
 	0x459, 0x45A, 0x45B, 0x568, 0x45D };
 
@@ -1311,6 +1318,9 @@ static void nct6775_update_pwm(struct device *dev)
 		if (reg & 0x80)
 			data->pwm[2][i] = 0;
 
+		if (!data->REG_WEIGHT_TEMP_SEL[i])
+			continue;
+
 		reg = nct6775_read_value(data, data->REG_WEIGHT_TEMP_SEL[i]);
 		data->pwm_weight_temp_sel[i] = reg & 0x1f;
 		/* If weight is disabled, report weight source as 0 */
@@ -2856,6 +2866,9 @@ static umode_t nct6775_pwm_is_visible(struct kobject *kobj,
 	if (!(data->has_pwm & (1 << pwm)))
 		return 0;
 
+	if ((nr >= 14 && nr <= 18) || nr == 21)   /* weight */
+		if (!data->REG_WEIGHT_TEMP_SEL[pwm])
+			return 0;
 	if (nr == 19 && data->REG_PWM[3] == NULL) /* pwm_max */
 		return 0;
 	if (nr == 20 && data->REG_PWM[4] == NULL) /* pwm_step */
@@ -2949,11 +2962,11 @@ static struct sensor_device_template *nct6775_attributes_pwm_template[] = {
 	&sensor_dev_template_pwm_step_down_time,
 	&sensor_dev_template_pwm_start,
 	&sensor_dev_template_pwm_floor,
-	&sensor_dev_template_pwm_weight_temp_sel,
+	&sensor_dev_template_pwm_weight_temp_sel,	/* 14 */
 	&sensor_dev_template_pwm_weight_temp_step,
 	&sensor_dev_template_pwm_weight_temp_step_tol,
 	&sensor_dev_template_pwm_weight_temp_step_base,
-	&sensor_dev_template_pwm_weight_duty_step,
+	&sensor_dev_template_pwm_weight_duty_step,	/* 18 */
 	&sensor_dev_template_pwm_max,			/* 19 */
 	&sensor_dev_template_pwm_step,			/* 20 */
 	&sensor_dev_template_pwm_weight_duty_base,	/* 21 */
@@ -3615,8 +3628,8 @@ static int nct6775_probe(struct platform_device *pdev)
 		data->REG_PWM[0] = NCT6775_REG_PWM;
 		data->REG_PWM[1] = NCT6775_REG_FAN_START_OUTPUT;
 		data->REG_PWM[2] = NCT6775_REG_FAN_STOP_OUTPUT;
-		data->REG_PWM[5] = NCT6775_REG_WEIGHT_DUTY_STEP;
-		data->REG_PWM[6] = NCT6776_REG_WEIGHT_DUTY_BASE;
+		data->REG_PWM[5] = NCT6791_REG_WEIGHT_DUTY_STEP;
+		data->REG_PWM[6] = NCT6791_REG_WEIGHT_DUTY_BASE;
 		data->REG_PWM_READ = NCT6775_REG_PWM_READ;
 		data->REG_PWM_MODE = NCT6776_REG_PWM_MODE;
 		data->PWM_MODE_MASK = NCT6776_PWM_MODE_MASK;
@@ -3632,10 +3645,10 @@ static int nct6775_probe(struct platform_device *pdev)
 		data->REG_TEMP_OFFSET = NCT6779_REG_TEMP_OFFSET;
 		data->REG_TEMP_SOURCE = NCT6775_REG_TEMP_SOURCE;
 		data->REG_TEMP_SEL = NCT6775_REG_TEMP_SEL;
-		data->REG_WEIGHT_TEMP_SEL = NCT6775_REG_WEIGHT_TEMP_SEL;
-		data->REG_WEIGHT_TEMP[0] = NCT6775_REG_WEIGHT_TEMP_STEP;
-		data->REG_WEIGHT_TEMP[1] = NCT6775_REG_WEIGHT_TEMP_STEP_TOL;
-		data->REG_WEIGHT_TEMP[2] = NCT6775_REG_WEIGHT_TEMP_BASE;
+		data->REG_WEIGHT_TEMP_SEL = NCT6791_REG_WEIGHT_TEMP_SEL;
+		data->REG_WEIGHT_TEMP[0] = NCT6791_REG_WEIGHT_TEMP_STEP;
+		data->REG_WEIGHT_TEMP[1] = NCT6791_REG_WEIGHT_TEMP_STEP_TOL;
+		data->REG_WEIGHT_TEMP[2] = NCT6791_REG_WEIGHT_TEMP_BASE;
 		data->REG_ALARM = NCT6791_REG_ALARM;
 		data->REG_BEEP = NCT6776_REG_BEEP;
 
-- 
cgit 


From 6469c842ec57f5062224bb5b86e6d38784b8d6c0 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Mon, 18 Nov 2013 11:44:09 +0200
Subject: sparc64: fix build regession

Commit ea1e7ed33708 triggers build regression on sparc64.

include/linux/mm.h:1391:2: error: implicit declaration of function 'pgtable_cache_init' [-Werror=implicit-function-declaration]
arch/sparc/include/asm/pgtable_64.h:978:13: error: conflicting types for 'pgtable_cache_init' [-Werror]

It happens due headers include loop:

<linux/mm.h> -> <asm/pgtable.h> -> <asm/pgtable_64.h> ->
	<asm/tlbflush.h> -> <asm/tlbflush_64.h> -> <linux/mm.h>

Let's drop <linux/mm.h> include from asm/tlbflush_64.h.
Build tested with allmodconfig.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/include/asm/tlbflush_64.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/sparc/include/asm/tlbflush_64.h b/arch/sparc/include/asm/tlbflush_64.h
index f0d6a9700f4c..3c3c89f52643 100644
--- a/arch/sparc/include/asm/tlbflush_64.h
+++ b/arch/sparc/include/asm/tlbflush_64.h
@@ -1,7 +1,6 @@
 #ifndef _SPARC64_TLBFLUSH_H
 #define _SPARC64_TLBFLUSH_H
 
-#include <linux/mm.h>
 #include <asm/mmu_context.h>
 
 /* TSB flush operations. */
-- 
cgit 


From 6a328f3fe042396c6525d7bf84cfd941440cc045 Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Mon, 18 Nov 2013 14:19:33 +1100
Subject: sparc64: merge fix

After merging the final tree, today's linux-next build (sparc64 defconfig)
failed like this:

arch/sparc/mm/init_64.c: In function 'pte_alloc_one':
arch/sparc/mm/init_64.c:2568:9: error: unused variable 'pte' [-Werror=unused-variable]

Caused by the merge between commit 37b3a8ff3e08 ("sparc64: Move from 4MB
to 8MB huge pages") and commit 1ae9ae5f7df7 ("sparc: handle
pgtable_page_ctor() fail") (I had the following merge fix in linux-next,
but it didn't seem to propagate upstream - may have forgotten to point it
out :-().

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/mm/init_64.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
index 6b643790e4fe..5322e530d09c 100644
--- a/arch/sparc/mm/init_64.c
+++ b/arch/sparc/mm/init_64.c
@@ -2565,8 +2565,6 @@ pgtable_t pte_alloc_one(struct mm_struct *mm,
 {
 	struct page *page = alloc_page(GFP_KERNEL | __GFP_NOTRACK |
 				       __GFP_REPEAT | __GFP_ZERO);
-	pte_t *pte = NULL;
-
 	if (!page)
 		return NULL;
 	if (!pgtable_page_ctor(page)) {
-- 
cgit 


From 0b2aa8bed3e13892fcac77e4f50ec6e80125469d Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Mon, 18 Nov 2013 15:22:49 -0800
Subject: gpio: twl4030: Fix regression for twl gpio output

Commit c111feabe2e2 (gpio: twl4030: Cache the direction and output
states in private data) improved things in general, but caused a
regression for setting the GPIO output direction.

The change reorganized twl_direction_out() and twl_set() and swapped
the function names around in the process. While doing that, a bug got
introduced that's not obvious while reading the patch as it appears
as no change to the code.

The bug is we now call function twl4030_set_gpio_dataout() twice in
both twl_direction_out() and twl_set(). Instead, we should first
call twl_direction_out() in twl_direction_out() followed by
twl4030_set_gpio_dataout() in twl_set().

This regression probably has gone unnoticed for a long time as the
bootloader may have set the GPIO direction properly in many cases.
This fixes at least the LCD panel not turning on omap3 LDP for
example.

Cc: linux-gpio@vger.kernel.org
Cc: stable@vger.kernel.org #v3.9+
Reviewed-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 drivers/gpio/gpio-twl4030.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-twl4030.c b/drivers/gpio/gpio-twl4030.c
index 0c7e891c8651..5738d5a7d849 100644
--- a/drivers/gpio/gpio-twl4030.c
+++ b/drivers/gpio/gpio-twl4030.c
@@ -354,17 +354,18 @@ static void twl_set(struct gpio_chip *chip, unsigned offset, int value)
 static int twl_direction_out(struct gpio_chip *chip, unsigned offset, int value)
 {
 	struct gpio_twl4030_priv *priv = to_gpio_twl4030(chip);
+	int ret = -EINVAL;
 
 	mutex_lock(&priv->mutex);
 	if (offset < TWL4030_GPIO_MAX)
-		twl4030_set_gpio_dataout(offset, value);
+		ret = twl4030_set_gpio_direction(offset, 0);
 
 	priv->direction |= BIT(offset);
 	mutex_unlock(&priv->mutex);
 
 	twl_set(chip, offset, value);
 
-	return 0;
+	return ret;
 }
 
 static int twl_to_irq(struct gpio_chip *chip, unsigned offset)
-- 
cgit 


From 9bf0c9cd431440a831e60c0a0fd0bc4f0e083e7f Mon Sep 17 00:00:00 2001
From: Steve French <smfrench@gmail.com>
Date: Sat, 16 Nov 2013 18:05:28 -0600
Subject: CIFS: Fix SMB2/SMB3 Copy offload support (refcopy) for large files

This third version of the patch, incorparating feedback from David Disseldorp
extends the ability of copychunk (refcopy) over smb2/smb3 mounts to
handle servers with smaller than usual maximum chunk sizes
and also fixes it to handle files bigger than the maximum chunk sizes

In the future this can be extended further to handle sending
multiple chunk requests in on SMB2 ioctl request which will
further improve performance, but even with one 1MB chunk per
request the speedup on cp is quite large.

Reviewed-by: David Disseldorp <ddiss@samba.org>
Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/smb2ops.c | 98 +++++++++++++++++++++++++++++++++++++++++++++++--------
 fs/cifs/smb2pdu.c |  9 ++++-
 2 files changed, 93 insertions(+), 14 deletions(-)

diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index 11dde4b24f8a..a3968eeb6fac 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -532,7 +532,10 @@ smb2_clone_range(const unsigned int xid,
 	int rc;
 	unsigned int ret_data_len;
 	struct copychunk_ioctl *pcchunk;
-	char *retbuf = NULL;
+	struct copychunk_ioctl_rsp *retbuf = NULL;
+	struct cifs_tcon *tcon;
+	int chunks_copied = 0;
+	bool chunk_sizes_updated = false;
 
 	pcchunk = kmalloc(sizeof(struct copychunk_ioctl), GFP_KERNEL);
 
@@ -547,27 +550,96 @@ smb2_clone_range(const unsigned int xid,
 
 	/* Note: request_res_key sets res_key null only if rc !=0 */
 	if (rc)
-		return rc;
+		goto cchunk_out;
 
 	/* For now array only one chunk long, will make more flexible later */
 	pcchunk->ChunkCount = __constant_cpu_to_le32(1);
 	pcchunk->Reserved = 0;
-	pcchunk->SourceOffset = cpu_to_le64(src_off);
-	pcchunk->TargetOffset = cpu_to_le64(dest_off);
-	pcchunk->Length = cpu_to_le32(len);
 	pcchunk->Reserved2 = 0;
 
-	/* Request that server copy to target from src file identified by key */
-	rc = SMB2_ioctl(xid, tlink_tcon(trgtfile->tlink),
-			trgtfile->fid.persistent_fid,
-			trgtfile->fid.volatile_fid, FSCTL_SRV_COPYCHUNK_WRITE,
-			true /* is_fsctl */, (char *)pcchunk,
-			sizeof(struct copychunk_ioctl),	&retbuf, &ret_data_len);
+	tcon = tlink_tcon(trgtfile->tlink);
 
-	/* BB need to special case rc = EINVAL to alter chunk size */
+	while (len > 0) {
+		pcchunk->SourceOffset = cpu_to_le64(src_off);
+		pcchunk->TargetOffset = cpu_to_le64(dest_off);
+		pcchunk->Length =
+			cpu_to_le32(min_t(u32, len, tcon->max_bytes_chunk));
 
-	cifs_dbg(FYI, "rc %d data length out %d\n", rc, ret_data_len);
+		/* Request server copy to target from src identified by key */
+		rc = SMB2_ioctl(xid, tcon, trgtfile->fid.persistent_fid,
+			trgtfile->fid.volatile_fid, FSCTL_SRV_COPYCHUNK_WRITE,
+			true /* is_fsctl */, (char *)pcchunk,
+			sizeof(struct copychunk_ioctl),	(char **)&retbuf,
+			&ret_data_len);
+		if (rc == 0) {
+			if (ret_data_len !=
+					sizeof(struct copychunk_ioctl_rsp)) {
+				cifs_dbg(VFS, "invalid cchunk response size\n");
+				rc = -EIO;
+				goto cchunk_out;
+			}
+			if (retbuf->TotalBytesWritten == 0) {
+				cifs_dbg(FYI, "no bytes copied\n");
+				rc = -EIO;
+				goto cchunk_out;
+			}
+			/*
+			 * Check if server claimed to write more than we asked
+			 */
+			if (le32_to_cpu(retbuf->TotalBytesWritten) >
+			    le32_to_cpu(pcchunk->Length)) {
+				cifs_dbg(VFS, "invalid copy chunk response\n");
+				rc = -EIO;
+				goto cchunk_out;
+			}
+			if (le32_to_cpu(retbuf->ChunksWritten) != 1) {
+				cifs_dbg(VFS, "invalid num chunks written\n");
+				rc = -EIO;
+				goto cchunk_out;
+			}
+			chunks_copied++;
+
+			src_off += le32_to_cpu(retbuf->TotalBytesWritten);
+			dest_off += le32_to_cpu(retbuf->TotalBytesWritten);
+			len -= le32_to_cpu(retbuf->TotalBytesWritten);
+
+			cifs_dbg(FYI, "Chunks %d PartialChunk %d Total %d\n",
+				le32_to_cpu(retbuf->ChunksWritten),
+				le32_to_cpu(retbuf->ChunkBytesWritten),
+				le32_to_cpu(retbuf->TotalBytesWritten));
+		} else if (rc == -EINVAL) {
+			if (ret_data_len != sizeof(struct copychunk_ioctl_rsp))
+				goto cchunk_out;
+
+			cifs_dbg(FYI, "MaxChunks %d BytesChunk %d MaxCopy %d\n",
+				le32_to_cpu(retbuf->ChunksWritten),
+				le32_to_cpu(retbuf->ChunkBytesWritten),
+				le32_to_cpu(retbuf->TotalBytesWritten));
+
+			/*
+			 * Check if this is the first request using these sizes,
+			 * (ie check if copy succeed once with original sizes
+			 * and check if the server gave us different sizes after
+			 * we already updated max sizes on previous request).
+			 * if not then why is the server returning an error now
+			 */
+			if ((chunks_copied != 0) || chunk_sizes_updated)
+				goto cchunk_out;
+
+			/* Check that server is not asking us to grow size */
+			if (le32_to_cpu(retbuf->ChunkBytesWritten) <
+					tcon->max_bytes_chunk)
+				tcon->max_bytes_chunk =
+					le32_to_cpu(retbuf->ChunkBytesWritten);
+			else
+				goto cchunk_out; /* server gave us bogus size */
+
+			/* No need to change MaxChunks since already set to 1 */
+			chunk_sizes_updated = true;
+		}
+	}
 
+cchunk_out:
 	kfree(pcchunk);
 	return rc;
 }
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index d65270c290a1..87f430ecb85f 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -1214,10 +1214,17 @@ SMB2_ioctl(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
 	rc = SendReceive2(xid, ses, iov, num_iovecs, &resp_buftype, 0);
 	rsp = (struct smb2_ioctl_rsp *)iov[0].iov_base;
 
-	if (rc != 0) {
+	if ((rc != 0) && (rc != -EINVAL)) {
 		if (tcon)
 			cifs_stats_fail_inc(tcon, SMB2_IOCTL_HE);
 		goto ioctl_exit;
+	} else if (rc == -EINVAL) {
+		if ((opcode != FSCTL_SRV_COPYCHUNK_WRITE) &&
+		    (opcode != FSCTL_SRV_COPYCHUNK)) {
+			if (tcon)
+				cifs_stats_fail_inc(tcon, SMB2_IOCTL_HE);
+			goto ioctl_exit;
+		}
 	}
 
 	/* check if caller wants to look at return data or just return rc */
-- 
cgit 


From 7d3fb24bce87a240ee5a5f99cdd72b1f336d5c3b Mon Sep 17 00:00:00 2001
From: Steve French <smfrench@gmail.com>
Date: Mon, 18 Nov 2013 09:56:28 -0600
Subject: Removed duplicated (and unneeded) goto

Remove an unneeded goto (and also was duplicated goto target name).

Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/smb2pdu.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 87f430ecb85f..1e136eee3ea6 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -2161,11 +2161,9 @@ send_set_info(const unsigned int xid, struct cifs_tcon *tcon,
 	rc = SendReceive2(xid, ses, iov, num, &resp_buftype, 0);
 	rsp = (struct smb2_set_info_rsp *)iov[0].iov_base;
 
-	if (rc != 0) {
+	if (rc != 0)
 		cifs_stats_fail_inc(tcon, SMB2_SET_INFO_HE);
-		goto out;
-	}
-out:
+
 	free_rsp_buf(resp_buftype, rsp);
 	kfree(iov);
 	return rc;
-- 
cgit 


From fd3a5d5b8386c9a29116e048b5e4ee86545ba012 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Mon, 18 Nov 2013 15:22:50 -0800
Subject: gpio: twl4030: Fix passing of pdata in the device tree case

We still have some legacy code needing the callback functions
that won't work properly without platform data. To use platform
data for twl4030-gpio, we need to not trash the possible data.

Cc: linux-gpio@vger.kernel.org
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
[tony@atomide.com: folded in fix from Fengguang to use struct assignment]
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 drivers/gpio/gpio-twl4030.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-twl4030.c b/drivers/gpio/gpio-twl4030.c
index 5738d5a7d849..b97d6a6577b9 100644
--- a/drivers/gpio/gpio-twl4030.c
+++ b/drivers/gpio/gpio-twl4030.c
@@ -436,7 +436,8 @@ static int gpio_twl4030_debounce(u32 debounce, u8 mmc_cd)
 
 static int gpio_twl4030_remove(struct platform_device *pdev);
 
-static struct twl4030_gpio_platform_data *of_gpio_twl4030(struct device *dev)
+static struct twl4030_gpio_platform_data *of_gpio_twl4030(struct device *dev,
+				struct twl4030_gpio_platform_data *pdata)
 {
 	struct twl4030_gpio_platform_data *omap_twl_info;
 
@@ -444,6 +445,9 @@ static struct twl4030_gpio_platform_data *of_gpio_twl4030(struct device *dev)
 	if (!omap_twl_info)
 		return NULL;
 
+	if (pdata)
+		*omap_twl_info = *pdata;
+
 	omap_twl_info->use_leds = of_property_read_bool(dev->of_node,
 			"ti,use-leds");
 
@@ -501,7 +505,7 @@ no_irqs:
 	mutex_init(&priv->mutex);
 
 	if (node)
-		pdata = of_gpio_twl4030(&pdev->dev);
+		pdata = of_gpio_twl4030(&pdev->dev, pdata);
 
 	if (pdata == NULL) {
 		dev_err(&pdev->dev, "Platform data is missing\n");
-- 
cgit 


From 39cec6222924dfbb5d7f5d2b2f718af34e872add Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Mon, 18 Nov 2013 13:56:48 -0800
Subject: ARM: OMAP2+: Fix undefined reference to set_cntfreq

If CONFIG_SOC_HAS_REALTIME_COUNTER is not selected for omap5
or dra7xx, we can get the following error:

arch/arm/mach-omap2/built-in.o: In function `omap4_secondary_init':
:(.text+0x7ab0): undefined reference to `set_cntfreq'

Fix the issue by not trying to initalize the realtime counter
unles CONFIG_SOC_HAS_REALTIME_COUNTER is selected.

Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/omap-secure.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/mach-omap2/omap-secure.h b/arch/arm/mach-omap2/omap-secure.h
index 8cc7d331437d..3e97c6c8ecf1 100644
--- a/arch/arm/mach-omap2/omap-secure.h
+++ b/arch/arm/mach-omap2/omap-secure.h
@@ -76,6 +76,13 @@ static inline void omap_barrier_reserve_memblock(void)
 { }
 #endif
 
+#ifdef CONFIG_SOC_HAS_REALTIME_COUNTER
 void set_cntfreq(void);
+#else
+static inline void set_cntfreq(void)
+{
+}
+#endif
+
 #endif /* __ASSEMBLER__ */
 #endif /* OMAP_ARCH_OMAP_SECURE_H */
-- 
cgit 


From 5beaee4f195d0297473da9a45459050b561e10cf Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 14 Nov 2013 00:54:00 +0100
Subject: ACPI / hotplug: Fix acpi_bus_get_device() return value check

Since acpi_bus_get_device() returns a plain int and not acpi_status,
ACPI_FAILURE() should not be used for checking its return value.  Fix
that.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/scan.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 276cde70a514..4698060ba3f0 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -411,8 +411,7 @@ static void acpi_hotplug_notify_cb(acpi_handle handle, u32 type, void *data)
 		break;
 	case ACPI_NOTIFY_EJECT_REQUEST:
 		acpi_handle_debug(handle, "ACPI_NOTIFY_EJECT_REQUEST event\n");
-		status = acpi_bus_get_device(handle, &adev);
-		if (ACPI_FAILURE(status))
+		if (acpi_bus_get_device(handle, &adev))
 			goto err_out;
 
 		get_device(&adev->dev);
-- 
cgit 


From c1beb0bdb5b3ef670af3ab946434f7fc55d4c7a3 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 14 Nov 2013 00:54:08 +0100
Subject: ACPI / hotplug: Fix PCI host bridge hot removal

Since the PCI host bridge scan handler does not set hotplug.enabled,
the check of it in acpi_bus_device_eject() effectively prevents the
root bridge hot removal from working after commit a3b1b1ef78cd
(ACPI / hotplug: Merge device hot-removal routines).  However, that
check is not necessary, because the other acpi_bus_device_eject()
users, acpi_hotplug_notify_cb and acpi_eject_store(), do the same
check by themselves before executing that function.

For this reason, remove the scan handler check from
acpi_bus_device_eject() to make PCI hot bridge hot removal work
again.

Fixes: a3b1b1ef78cd (ACPI / hotplug: Merge device hot-removal routines)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/scan.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 4698060ba3f0..821d154221d5 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -289,24 +289,17 @@ void acpi_bus_device_eject(void *data, u32 ost_src)
 {
 	struct acpi_device *device = data;
 	acpi_handle handle = device->handle;
-	struct acpi_scan_handler *handler;
 	u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE;
 	int error;
 
 	lock_device_hotplug();
 	mutex_lock(&acpi_scan_lock);
 
-	handler = device->handler;
-	if (!handler || !handler->hotplug.enabled) {
-		put_device(&device->dev);
-		goto err_support;
-	}
-
 	if (ost_src == ACPI_NOTIFY_EJECT_REQUEST)
 		acpi_evaluate_hotplug_ost(handle, ACPI_NOTIFY_EJECT_REQUEST,
 					  ACPI_OST_SC_EJECT_IN_PROGRESS, NULL);
 
-	if (handler->hotplug.mode == AHM_CONTAINER)
+	if (device->handler && device->handler->hotplug.mode == AHM_CONTAINER)
 		kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE);
 
 	error = acpi_scan_hot_remove(device);
-- 
cgit 


From f516bde5122422889398d10e8e746d18860bd42e Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Thu, 14 Nov 2013 00:54:17 +0100
Subject: ACPI / PCI root: Clear driver_data before failing enumeration

If a PCI host bridge cannot be enumerated due to an error in
pci_acpi_scan_root(), its ACPI device object's driver_data field
has to be cleared by acpi_pci_root_add() before freeing the
object pointed to by that field, or some later acpi_pci_find_root()
checks that should fail may succeed and cause quite a bit of
confusion to ensue.

Fix acpi_pci_root_add() to clear device->driver_data before
returning an error code as appropriate.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
---
 drivers/acpi/pci_root.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 417876bce854..b5cb729328a4 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -525,6 +525,7 @@ static int acpi_pci_root_add(struct acpi_device *device,
 		dev_err(&device->dev,
 			"Bus %04x:%02x not present in PCI namespace\n",
 			root->segment, (unsigned int)root->secondary.start);
+		device->driver_data = NULL;
 		result = -ENODEV;
 		goto end;
 	}
-- 
cgit 


From 883461679ad1ed6e09135adf8c02bb98d7962623 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Mon, 18 Nov 2013 14:18:47 +0100
Subject: ACPI / scan: Set flags.match_driver in acpi_bus_scan_fixed()

Before commit 6931007cc90b (ACPI / scan: Start matching drivers
after trying scan handlers) the match_driver flag for all devices
was set in acpi_add_single_object(), but now it is set by
acpi_bus_device_attach() which is not called for the "fixed"
devices added by acpi_bus_scan_fixed().  This means that
flags.match_driver is never set for those devices now, so make
acpi_bus_scan_fixed() set it before calling device_attach().

Fixes: 6931007cc90b (ACPI / scan: Start matching drivers after trying scan handlers)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/scan.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 821d154221d5..ce518867a18a 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1990,6 +1990,7 @@ static int acpi_bus_scan_fixed(void)
 		if (result)
 			return result;
 
+		device->flags.match_driver = true;
 		result = device_attach(&device->dev);
 		if (result < 0)
 			return result;
@@ -2006,6 +2007,7 @@ static int acpi_bus_scan_fixed(void)
 		if (result)
 			return result;
 
+		device->flags.match_driver = true;
 		result = device_attach(&device->dev);
 	}
 
-- 
cgit 


From e30b06f4d5f000c31a7747a7e7ada78a5fd419a1 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Mon, 18 Nov 2013 16:24:57 -0800
Subject: ARM: OMAP2+: Remove legacy mux code for display.c

This is all omap4 specific, which is device tree based
nowadays and should use pinctrl-single instead.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/display.c | 78 -------------------------------------------
 1 file changed, 78 deletions(-)

diff --git a/arch/arm/mach-omap2/display.c b/arch/arm/mach-omap2/display.c
index a4e536b11ec9..58347bb874a0 100644
--- a/arch/arm/mach-omap2/display.c
+++ b/arch/arm/mach-omap2/display.c
@@ -32,7 +32,6 @@
 
 #include "soc.h"
 #include "iomap.h"
-#include "mux.h"
 #include "control.h"
 #include "display.h"
 #include "prm.h"
@@ -102,90 +101,13 @@ static const struct omap_dss_hwmod_data omap4_dss_hwmod_data[] __initconst = {
 	{ "dss_hdmi", "omapdss_hdmi", -1 },
 };
 
-static void __init omap4_tpd12s015_mux_pads(void)
-{
-	omap_mux_init_signal("hdmi_cec",
-			OMAP_PIN_INPUT_PULLUP);
-	omap_mux_init_signal("hdmi_ddc_scl",
-			OMAP_PIN_INPUT_PULLUP);
-	omap_mux_init_signal("hdmi_ddc_sda",
-			OMAP_PIN_INPUT_PULLUP);
-}
-
-static void __init omap4_hdmi_mux_pads(enum omap_hdmi_flags flags)
-{
-	u32 reg;
-	u16 control_i2c_1;
-
-	/*
-	 * CONTROL_I2C_1: HDMI_DDC_SDA_PULLUPRESX (bit 28) and
-	 * HDMI_DDC_SCL_PULLUPRESX (bit 24) are set to disable
-	 * internal pull up resistor.
-	 */
-	if (flags & OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP) {
-		control_i2c_1 = OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_I2C_1;
-		reg = omap4_ctrl_pad_readl(control_i2c_1);
-		reg |= (OMAP4_HDMI_DDC_SDA_PULLUPRESX_MASK |
-			OMAP4_HDMI_DDC_SCL_PULLUPRESX_MASK);
-			omap4_ctrl_pad_writel(reg, control_i2c_1);
-	}
-}
-
-static int omap4_dsi_mux_pads(int dsi_id, unsigned lanes)
-{
-	u32 enable_mask, enable_shift;
-	u32 pipd_mask, pipd_shift;
-	u32 reg;
-
-	if (dsi_id == 0) {
-		enable_mask = OMAP4_DSI1_LANEENABLE_MASK;
-		enable_shift = OMAP4_DSI1_LANEENABLE_SHIFT;
-		pipd_mask = OMAP4_DSI1_PIPD_MASK;
-		pipd_shift = OMAP4_DSI1_PIPD_SHIFT;
-	} else if (dsi_id == 1) {
-		enable_mask = OMAP4_DSI2_LANEENABLE_MASK;
-		enable_shift = OMAP4_DSI2_LANEENABLE_SHIFT;
-		pipd_mask = OMAP4_DSI2_PIPD_MASK;
-		pipd_shift = OMAP4_DSI2_PIPD_SHIFT;
-	} else {
-		return -ENODEV;
-	}
-
-	reg = omap4_ctrl_pad_readl(OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_DSIPHY);
-
-	reg &= ~enable_mask;
-	reg &= ~pipd_mask;
-
-	reg |= (lanes << enable_shift) & enable_mask;
-	reg |= (lanes << pipd_shift) & pipd_mask;
-
-	omap4_ctrl_pad_writel(reg, OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_DSIPHY);
-
-	return 0;
-}
-
-int __init omap_hdmi_init(enum omap_hdmi_flags flags)
-{
-	if (cpu_is_omap44xx()) {
-		omap4_hdmi_mux_pads(flags);
-		omap4_tpd12s015_mux_pads();
-	}
-
-	return 0;
-}
-
 static int omap_dsi_enable_pads(int dsi_id, unsigned lane_mask)
 {
-	if (cpu_is_omap44xx())
-		return omap4_dsi_mux_pads(dsi_id, lane_mask);
-
 	return 0;
 }
 
 static void omap_dsi_disable_pads(int dsi_id, unsigned lane_mask)
 {
-	if (cpu_is_omap44xx())
-		omap4_dsi_mux_pads(dsi_id, 0);
 }
 
 static int omap_dss_set_min_bus_tput(struct device *dev, unsigned long tput)
-- 
cgit 


From b2ff4790612bbfa3433cc92e56445c2a40098e2c Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Mon, 18 Nov 2013 16:24:58 -0800
Subject: ARM: OMAP2+: Remove legacy omap4_twl6030_hsmmc_init

This is no longer used, omap4 is device tree based now.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/common.h       |  1 -
 arch/arm/mach-omap2/omap4-common.c | 57 --------------------------------------
 2 files changed, 58 deletions(-)

diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index f7644febee81..e30ef6797c63 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -299,7 +299,6 @@ struct omap_sdrc_params;
 extern void omap_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
 				      struct omap_sdrc_params *sdrc_cs1);
 struct omap2_hsmmc_info;
-extern int omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers);
 extern void omap_reserve(void);
 
 struct omap_hwmod;
diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index 57911430324e..b39efd46abf9 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -35,7 +35,6 @@
 #include "iomap.h"
 #include "common.h"
 #include "mmc.h"
-#include "hsmmc.h"
 #include "prminst44xx.h"
 #include "prcm_mpu44xx.h"
 #include "omap4-sar-layout.h"
@@ -284,59 +283,3 @@ skip_errata_init:
 	omap_wakeupgen_init();
 	irqchip_init();
 }
-
-#if defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
-static int omap4_twl6030_hsmmc_late_init(struct device *dev)
-{
-	int irq = 0;
-	struct platform_device *pdev = container_of(dev,
-				struct platform_device, dev);
-	struct omap_mmc_platform_data *pdata = dev->platform_data;
-
-	/* Setting MMC1 Card detect Irq */
-	if (pdev->id == 0) {
-		irq = twl6030_mmc_card_detect_config();
-		if (irq < 0) {
-			dev_err(dev, "%s: Error card detect config(%d)\n",
-				__func__, irq);
-			return irq;
-		}
-		pdata->slots[0].card_detect_irq = irq;
-		pdata->slots[0].card_detect = twl6030_mmc_card_detect;
-	}
-	return 0;
-}
-
-static __init void omap4_twl6030_hsmmc_set_late_init(struct device *dev)
-{
-	struct omap_mmc_platform_data *pdata;
-
-	/* dev can be null if CONFIG_MMC_OMAP_HS is not set */
-	if (!dev) {
-		pr_err("Failed %s\n", __func__);
-		return;
-	}
-	pdata = dev->platform_data;
-	pdata->init =	omap4_twl6030_hsmmc_late_init;
-}
-
-int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
-{
-	struct omap2_hsmmc_info *c;
-
-	omap_hsmmc_init(controllers);
-	for (c = controllers; c->mmc; c++) {
-		/* pdev can be null if CONFIG_MMC_OMAP_HS is not set */
-		if (!c->pdev)
-			continue;
-		omap4_twl6030_hsmmc_set_late_init(&c->pdev->dev);
-	}
-
-	return 0;
-}
-#else
-int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
-{
-	return 0;
-}
-#endif
-- 
cgit 


From 5761704a41c63ebe756295a13d2e236280dd8a86 Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Mon, 18 Nov 2013 06:01:38 +0100
Subject: ARM: 7892/1: Fix warning for V7M builds

Fixes a harmless warning when building for V7M (!MMU):
 arch/arm/kernel/traps.c:859:123: warning: 'kuser_init' defined but not used [-Wunused-function]

By making the stub static inline instead of just static.

Fixes: f6f91b0d9fd9 ('ARM: allow kuser helpers to be removed from the vector page')

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/traps.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 6125f259b7b5..dbf0923e8d76 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -856,7 +856,7 @@ static void __init kuser_init(void *vectors)
 		memcpy(vectors + 0xfe0, vectors + 0xfe8, 4);
 }
 #else
-static void __init kuser_init(void *vectors)
+static inline void __init kuser_init(void *vectors)
 {
 }
 #endif
-- 
cgit 


From 801a76050bcf8d4e500eb8d048ff6265f37a61c8 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@ZenIV.linux.org.uk>
Date: Tue, 19 Nov 2013 01:20:43 +0000
Subject: seq_file: always clear m->count when we free m->buf

Once we'd freed m->buf, m->count should become zero - we have no valid
contents reachable via m->buf.

Reported-by: Charley (Hao Chuan) Chu <charley.chu@broadcom.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/seq_file.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/seq_file.c b/fs/seq_file.c
index 1cd2388ca5bd..1d641bb108d2 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -136,6 +136,7 @@ static int traverse(struct seq_file *m, loff_t offset)
 Eoverflow:
 	m->op->stop(m, p);
 	kfree(m->buf);
+	m->count = 0;
 	m->buf = kmalloc(m->size <<= 1, GFP_KERNEL);
 	return !m->buf ? -ENOMEM : -EAGAIN;
 }
@@ -232,10 +233,10 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
 			goto Fill;
 		m->op->stop(m, p);
 		kfree(m->buf);
+		m->count = 0;
 		m->buf = kmalloc(m->size <<= 1, GFP_KERNEL);
 		if (!m->buf)
 			goto Enomem;
-		m->count = 0;
 		m->version = 0;
 		pos = m->index;
 		p = m->op->start(m, &pos);
-- 
cgit 


From 4bda556aea1d2916260326c6afa77b84a1f1345a Mon Sep 17 00:00:00 2001
From: Shaohua Li <shli@kernel.org>
Date: Thu, 14 Nov 2013 15:16:17 +1100
Subject: raid5: relieve lock contention in get_active_stripe()

track empty inactive list count, so md_raid5_congested() can use it to make
decision.

Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid5.c | 8 +++++++-
 drivers/md/raid5.h | 1 +
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 93090b2afab4..1fb28c56457a 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -356,6 +356,9 @@ static void release_inactive_stripe_list(struct r5conf *conf,
 		 */
 		if (!list_empty_careful(list)) {
 			spin_lock_irqsave(conf->hash_locks + hash, flags);
+			if (list_empty(conf->inactive_list + hash) &&
+			    !list_empty(list))
+				atomic_dec(&conf->empty_inactive_list_nr);
 			list_splice_tail_init(list, conf->inactive_list + hash);
 			do_wakeup = true;
 			spin_unlock_irqrestore(conf->hash_locks + hash, flags);
@@ -477,6 +480,8 @@ static struct stripe_head *get_free_stripe(struct r5conf *conf, int hash)
 	remove_hash(sh);
 	atomic_inc(&conf->active_stripes);
 	BUG_ON(hash != sh->hash_lock_index);
+	if (list_empty(conf->inactive_list + hash))
+		atomic_inc(&conf->empty_inactive_list_nr);
 out:
 	return sh;
 }
@@ -4059,7 +4064,7 @@ int md_raid5_congested(struct mddev *mddev, int bits)
 		return 1;
 	if (conf->quiesce)
 		return 1;
-	if (atomic_read(&conf->active_stripes) == conf->max_nr_stripes)
+	if (atomic_read(&conf->empty_inactive_list_nr))
 		return 1;
 
 	return 0;
@@ -5750,6 +5755,7 @@ static struct r5conf *setup_conf(struct mddev *mddev)
 
 	memory = conf->max_nr_stripes * (sizeof(struct stripe_head) +
 		 max_disks * ((sizeof(struct bio) + PAGE_SIZE))) / 1024;
+	atomic_set(&conf->empty_inactive_list_nr, NR_STRIPE_HASH_LOCKS);
 	if (grow_stripes(conf, NR_STRIPES)) {
 		printk(KERN_ERR
 		       "md/raid:%s: couldn't allocate %dkB for buffers\n",
diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h
index a9e443a1116f..e4407388670a 100644
--- a/drivers/md/raid5.h
+++ b/drivers/md/raid5.h
@@ -475,6 +475,7 @@ struct r5conf {
 	 */
 	atomic_t		active_stripes;
 	struct list_head	inactive_list[NR_STRIPE_HASH_LOCKS];
+	atomic_t		empty_inactive_list_nr;
 	struct llist_head	released_stripes;
 	wait_queue_head_t	wait_for_stripe;
 	wait_queue_head_t	wait_for_overlap;
-- 
cgit 


From edfa1f651e93261eecb034d02284ece103dd691a Mon Sep 17 00:00:00 2001
From: Bian Yu <bianyu@kedacom.com>
Date: Thu, 14 Nov 2013 15:16:17 +1100
Subject: raid5: Retry R5_ReadNoMerge flag when hit a read error.

Because of block layer merge, one bio fails will cause other bios
which belongs to the same request fails, so raid5_end_read_request
will record all these bios as badblocks.
If retry request with R5_ReadNoMerge flag to avoid bios merge,
badblocks can only record sector which is bad exactly.

test:
hdparm --yes-i-know-what-i-am-doing --make-bad-sector 300000 /dev/sdb
mdadm -C /dev/md0 -l5 -n3 /dev/sd[bcd] --assume-clean
mdadm /dev/md0 -f /dev/sdd
mdadm /dev/md0 -r /dev/sdd
mdadm --zero-superblock /dev/sdd
mdadm /dev/md0 -a /dev/sdd

1. Without this patch:
cat /sys/block/md0/md/rd*/bad_blocks
299776 256
299776 256

2. With this patch:
cat /sys/block/md0/md/rd*/bad_blocks
300000 8
300000 8

Signed-off-by: Bian Yu <bianyu@kedacom.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid5.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 1fb28c56457a..2c8907706109 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -2056,6 +2056,9 @@ static void raid5_end_read_request(struct bio * bi, int error)
 			       mdname(conf->mddev), bdn);
 		else
 			retry = 1;
+		if (set_bad && test_bit(In_sync, &rdev->flags)
+		    && !test_bit(R5_ReadNoMerge, &sh->dev[i].flags))
+			retry = 1;
 		if (retry)
 			if (test_bit(R5_ReadNoMerge, &sh->dev[i].flags)) {
 				set_bit(R5_ReadError, &sh->dev[i].flags);
-- 
cgit 


From 29f097c4d968021ee4fad1b033be5825ff78330e Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Thu, 14 Nov 2013 17:54:51 +1100
Subject: md: fix some places where mddev_lock return value is not checked.

Sometimes we need to lock and mddev and cannot cope with
failure due to interrupt.
In these cases we should use mutex_lock, not mutex_lock_interruptible.

Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/md.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 1975c2d7aba3..1ca47b0f4779 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -602,11 +602,19 @@ static struct mddev * mddev_find(dev_t unit)
 	goto retry;
 }
 
-static inline int mddev_lock(struct mddev * mddev)
+static inline int __must_check mddev_lock(struct mddev * mddev)
 {
 	return mutex_lock_interruptible(&mddev->reconfig_mutex);
 }
 
+/* Sometimes we need to take the lock in a situation where
+ * failure due to interrupts is not acceptable.
+ */
+static inline void mddev_lock_nointr(struct mddev * mddev)
+{
+	mutex_lock(&mddev->reconfig_mutex);
+}
+
 static inline int mddev_is_locked(struct mddev *mddev)
 {
 	return mutex_is_locked(&mddev->reconfig_mutex);
@@ -3018,7 +3026,7 @@ rdev_size_store(struct md_rdev *rdev, const char *buf, size_t len)
 		for_each_mddev(mddev, tmp) {
 			struct md_rdev *rdev2;
 
-			mddev_lock(mddev);
+			mddev_lock_nointr(mddev);
 			rdev_for_each(rdev2, mddev)
 				if (rdev->bdev == rdev2->bdev &&
 				    rdev != rdev2 &&
@@ -3034,7 +3042,7 @@ rdev_size_store(struct md_rdev *rdev, const char *buf, size_t len)
 				break;
 			}
 		}
-		mddev_lock(my_mddev);
+		mddev_lock_nointr(my_mddev);
 		if (overlap) {
 			/* Someone else could have slipped in a size
 			 * change here, but doing so is just silly.
@@ -5299,7 +5307,7 @@ static void __md_stop_writes(struct mddev *mddev)
 
 void md_stop_writes(struct mddev *mddev)
 {
-	mddev_lock(mddev);
+	mddev_lock_nointr(mddev);
 	__md_stop_writes(mddev);
 	mddev_unlock(mddev);
 }
@@ -6592,7 +6600,7 @@ static int md_ioctl(struct block_device *bdev, fmode_t mode,
 				wait_event(mddev->sb_wait,
 					   !test_bit(MD_CHANGE_DEVS, &mddev->flags) &&
 					   !test_bit(MD_CHANGE_PENDING, &mddev->flags));
-				mddev_lock(mddev);
+				mddev_lock_nointr(mddev);
 			}
 		} else {
 			err = -EROFS;
-- 
cgit 


From c91abf5a3546a4ff0838d2905f4d7eae2795f724 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Tue, 19 Nov 2013 12:02:01 +1100
Subject: md: use MD_RECOVERY_INTR instead of kthread_should_stop in resync
 thread.

We currently use kthread_should_stop() in various places in the
sync/reshape code to abort early.
However some places set MD_RECOVERY_INTR but don't immediately call
md_reap_sync_thread() (and we will shortly get another one).
When this happens we are relying on md_check_recovery() to reap the
thread and that only happen when it finishes normally.
So MD_RECOVERY_INTR must lead to a normal finish without the
kthread_should_stop() test.

So replace all relevant tests, and be more careful when the thread is
interrupted not to acknowledge that latest step in a reshape as it may
not be fully committed yet.

Also add a test on MD_RECOVERY_INTR in the 'is_mddev_idle' loop
so we don't wait have to wait for the speed to drop before we can abort.

Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/md.c     | 40 ++++++++++++++--------------------------
 drivers/md/raid10.c |  6 +++++-
 drivers/md/raid5.c  | 19 +++++++++++++++----
 3 files changed, 34 insertions(+), 31 deletions(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 1ca47b0f4779..a74045df7bab 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -7410,9 +7410,6 @@ void md_do_sync(struct md_thread *thread)
 		mddev->curr_resync = 2;
 
 	try_again:
-		if (kthread_should_stop())
-			set_bit(MD_RECOVERY_INTR, &mddev->recovery);
-
 		if (test_bit(MD_RECOVERY_INTR, &mddev->recovery))
 			goto skip;
 		for_each_mddev(mddev2, tmp) {
@@ -7437,7 +7434,7 @@ void md_do_sync(struct md_thread *thread)
 				 * be caught by 'softlockup'
 				 */
 				prepare_to_wait(&resync_wait, &wq, TASK_INTERRUPTIBLE);
-				if (!kthread_should_stop() &&
+				if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery) &&
 				    mddev2->curr_resync >= mddev->curr_resync) {
 					printk(KERN_INFO "md: delaying %s of %s"
 					       " until %s has finished (they"
@@ -7513,7 +7510,7 @@ void md_do_sync(struct md_thread *thread)
 	last_check = 0;
 
 	if (j>2) {
-		printk(KERN_INFO 
+		printk(KERN_INFO
 		       "md: resuming %s of %s from checkpoint.\n",
 		       desc, mdname(mddev));
 		mddev->curr_resync = j;
@@ -7550,7 +7547,8 @@ void md_do_sync(struct md_thread *thread)
 			sysfs_notify(&mddev->kobj, NULL, "sync_completed");
 		}
 
-		while (j >= mddev->resync_max && !kthread_should_stop()) {
+		while (j >= mddev->resync_max &&
+		       !test_bit(MD_RECOVERY_INTR, &mddev->recovery)) {
 			/* As this condition is controlled by user-space,
 			 * we can block indefinitely, so use '_interruptible'
 			 * to avoid triggering warnings.
@@ -7558,17 +7556,18 @@ void md_do_sync(struct md_thread *thread)
 			flush_signals(current); /* just in case */
 			wait_event_interruptible(mddev->recovery_wait,
 						 mddev->resync_max > j
-						 || kthread_should_stop());
+						 || test_bit(MD_RECOVERY_INTR,
+							     &mddev->recovery));
 		}
 
-		if (kthread_should_stop())
-			goto interrupted;
+		if (test_bit(MD_RECOVERY_INTR, &mddev->recovery))
+			break;
 
 		sectors = mddev->pers->sync_request(mddev, j, &skipped,
 						  currspeed < speed_min(mddev));
 		if (sectors == 0) {
 			set_bit(MD_RECOVERY_INTR, &mddev->recovery);
-			goto out;
+			break;
 		}
 
 		if (!skipped) { /* actual IO requested */
@@ -7605,10 +7604,8 @@ void md_do_sync(struct md_thread *thread)
 			last_mark = next;
 		}
 
-
-		if (kthread_should_stop())
-			goto interrupted;
-
+		if (test_bit(MD_RECOVERY_INTR, &mddev->recovery))
+			break;
 
 		/*
 		 * this loop exits only if either when we are slower than
@@ -7631,11 +7628,12 @@ void md_do_sync(struct md_thread *thread)
 			}
 		}
 	}
-	printk(KERN_INFO "md: %s: %s done.\n",mdname(mddev), desc);
+	printk(KERN_INFO "md: %s: %s %s.\n",mdname(mddev), desc,
+	       test_bit(MD_RECOVERY_INTR, &mddev->recovery)
+	       ? "interrupted" : "done");
 	/*
 	 * this also signals 'finished resyncing' to md_stop
 	 */
- out:
 	blk_finish_plug(&plug);
 	wait_event(mddev->recovery_wait, !atomic_read(&mddev->recovery_active));
 
@@ -7689,16 +7687,6 @@ void md_do_sync(struct md_thread *thread)
 	set_bit(MD_RECOVERY_DONE, &mddev->recovery);
 	md_wakeup_thread(mddev->thread);
 	return;
-
- interrupted:
-	/*
-	 * got a signal, exit.
-	 */
-	printk(KERN_INFO
-	       "md: md_do_sync() got signal ... exiting\n");
-	set_bit(MD_RECOVERY_INTR, &mddev->recovery);
-	goto out;
-
 }
 EXPORT_SYMBOL_GPL(md_do_sync);
 
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 73dc8a377522..4f87ba5f3a66 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -4386,7 +4386,11 @@ static sector_t reshape_request(struct mddev *mddev, sector_t sector_nr,
 		set_bit(MD_CHANGE_DEVS, &mddev->flags);
 		md_wakeup_thread(mddev->thread);
 		wait_event(mddev->sb_wait, mddev->flags == 0 ||
-			   kthread_should_stop());
+			   test_bit(MD_RECOVERY_INTR, &mddev->recovery));
+		if (test_bit(MD_RECOVERY_INTR, &mddev->recovery)) {
+			allow_barrier(conf);
+			return sectors_done;
+		}
 		conf->reshape_safe = mddev->reshape_position;
 		allow_barrier(conf);
 	}
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 2c8907706109..02f6bc2ac2db 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -4842,14 +4842,19 @@ static sector_t reshape_request(struct mddev *mddev, sector_t sector_nr, int *sk
 	    time_after(jiffies, conf->reshape_checkpoint + 10*HZ)) {
 		/* Cannot proceed until we've updated the superblock... */
 		wait_event(conf->wait_for_overlap,
-			   atomic_read(&conf->reshape_stripes)==0);
+			   atomic_read(&conf->reshape_stripes)==0
+			   || test_bit(MD_RECOVERY_INTR, &mddev->recovery));
+		if (atomic_read(&conf->reshape_stripes) != 0)
+			return 0;
 		mddev->reshape_position = conf->reshape_progress;
 		mddev->curr_resync_completed = sector_nr;
 		conf->reshape_checkpoint = jiffies;
 		set_bit(MD_CHANGE_DEVS, &mddev->flags);
 		md_wakeup_thread(mddev->thread);
 		wait_event(mddev->sb_wait, mddev->flags == 0 ||
-			   kthread_should_stop());
+			   test_bit(MD_RECOVERY_INTR, &mddev->recovery));
+		if (test_bit(MD_RECOVERY_INTR, &mddev->recovery))
+			return 0;
 		spin_lock_irq(&conf->device_lock);
 		conf->reshape_safe = mddev->reshape_position;
 		spin_unlock_irq(&conf->device_lock);
@@ -4932,7 +4937,10 @@ static sector_t reshape_request(struct mddev *mddev, sector_t sector_nr, int *sk
 	    >= mddev->resync_max - mddev->curr_resync_completed) {
 		/* Cannot proceed until we've updated the superblock... */
 		wait_event(conf->wait_for_overlap,
-			   atomic_read(&conf->reshape_stripes) == 0);
+			   atomic_read(&conf->reshape_stripes) == 0
+			   || test_bit(MD_RECOVERY_INTR, &mddev->recovery));
+		if (atomic_read(&conf->reshape_stripes) != 0)
+			goto ret;
 		mddev->reshape_position = conf->reshape_progress;
 		mddev->curr_resync_completed = sector_nr;
 		conf->reshape_checkpoint = jiffies;
@@ -4940,13 +4948,16 @@ static sector_t reshape_request(struct mddev *mddev, sector_t sector_nr, int *sk
 		md_wakeup_thread(mddev->thread);
 		wait_event(mddev->sb_wait,
 			   !test_bit(MD_CHANGE_DEVS, &mddev->flags)
-			   || kthread_should_stop());
+			   || test_bit(MD_RECOVERY_INTR, &mddev->recovery));
+		if (test_bit(MD_RECOVERY_INTR, &mddev->recovery))
+			goto ret;
 		spin_lock_irq(&conf->device_lock);
 		conf->reshape_safe = mddev->reshape_position;
 		spin_unlock_irq(&conf->device_lock);
 		wake_up(&conf->wait_for_overlap);
 		sysfs_notify(&mddev->kobj, NULL, "sync_completed");
 	}
+ret:
 	return reshape_sectors;
 }
 
-- 
cgit 


From 30b8feb730f9b9b3c5de02580897da03f59b6b16 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Thu, 14 Nov 2013 15:16:17 +1100
Subject: md/raid5: avoid deadlock when raid5 array has unack badblocks during
 md_stop_writes.

When raid5 recovery hits a fresh badblock, this badblock will flagged as unack
badblock until md_update_sb() is called.
But md_stop will take reconfig lock which means raid5d can't call
md_update_sb() in md_check_recovery(), the badblock will always
be unack, so raid5d thread enters an infinite loop and md_stop_write()
can never stop sync_thread. This causes deadlock.

To solve this, when STOP_ARRAY ioctl is issued and sync_thread is
running, we need set md->recovery FROZEN and INTR flags and wait for
sync_thread to stop before we (re)take reconfig lock.

This requires that raid5 reshape_request notices MD_RECOVERY_INTR
(which it probably should have noticed anyway) and stops waiting for a
metadata update in that case.

Reported-by: Jianpeng Ma <majianpeng@gmail.com>
Reported-by: Bian Yu <bianyu@kedacom.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/md.c | 68 +++++++++++++++++++++++++++++++++++++++++----------------
 1 file changed, 49 insertions(+), 19 deletions(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index a74045df7bab..47e7bc74ed38 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -5340,20 +5340,35 @@ EXPORT_SYMBOL_GPL(md_stop);
 static int md_set_readonly(struct mddev *mddev, struct block_device *bdev)
 {
 	int err = 0;
+	int did_freeze = 0;
+
+	if (!test_bit(MD_RECOVERY_FROZEN, &mddev->recovery)) {
+		did_freeze = 1;
+		set_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
+		md_wakeup_thread(mddev->thread);
+	}
+	if (mddev->sync_thread) {
+		set_bit(MD_RECOVERY_INTR, &mddev->recovery);
+		/* Thread might be blocked waiting for metadata update
+		 * which will now never happen */
+		wake_up_process(mddev->sync_thread->tsk);
+	}
+	mddev_unlock(mddev);
+	wait_event(resync_wait, mddev->sync_thread == NULL);
+	mddev_lock_nointr(mddev);
+
 	mutex_lock(&mddev->open_mutex);
-	if (atomic_read(&mddev->openers) > !!bdev) {
+	if (atomic_read(&mddev->openers) > !!bdev ||
+	    mddev->sync_thread ||
+	    (bdev && !test_bit(MD_STILL_CLOSED, &mddev->flags))) {
 		printk("md: %s still in use.\n",mdname(mddev));
+		if (did_freeze) {
+			clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
+			md_wakeup_thread(mddev->thread);
+		}
 		err = -EBUSY;
 		goto out;
 	}
-	if (bdev && !test_bit(MD_STILL_CLOSED, &mddev->flags)) {
-		/* Someone opened the device since we flushed it
-		 * so page cache could be dirty and it is too late
-		 * to flush.  So abort
-		 */
-		mutex_unlock(&mddev->open_mutex);
-		return -EBUSY;
-	}
 	if (mddev->pers) {
 		__md_stop_writes(mddev);
 
@@ -5364,7 +5379,7 @@ static int md_set_readonly(struct mddev *mddev, struct block_device *bdev)
 		set_disk_ro(mddev->gendisk, 1);
 		clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
 		sysfs_notify_dirent_safe(mddev->sysfs_state);
-		err = 0;	
+		err = 0;
 	}
 out:
 	mutex_unlock(&mddev->open_mutex);
@@ -5380,20 +5395,34 @@ static int do_md_stop(struct mddev * mddev, int mode,
 {
 	struct gendisk *disk = mddev->gendisk;
 	struct md_rdev *rdev;
+	int did_freeze = 0;
+
+	if (!test_bit(MD_RECOVERY_FROZEN, &mddev->recovery)) {
+		did_freeze = 1;
+		set_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
+		md_wakeup_thread(mddev->thread);
+	}
+	if (mddev->sync_thread) {
+		set_bit(MD_RECOVERY_INTR, &mddev->recovery);
+		/* Thread might be blocked waiting for metadata update
+		 * which will now never happen */
+		wake_up_process(mddev->sync_thread->tsk);
+	}
+	mddev_unlock(mddev);
+	wait_event(resync_wait, mddev->sync_thread == NULL);
+	mddev_lock_nointr(mddev);
 
 	mutex_lock(&mddev->open_mutex);
 	if (atomic_read(&mddev->openers) > !!bdev ||
-	    mddev->sysfs_active) {
+	    mddev->sysfs_active ||
+	    mddev->sync_thread ||
+	    (bdev && !test_bit(MD_STILL_CLOSED, &mddev->flags))) {
 		printk("md: %s still in use.\n",mdname(mddev));
 		mutex_unlock(&mddev->open_mutex);
-		return -EBUSY;
-	}
-	if (bdev && !test_bit(MD_STILL_CLOSED, &mddev->flags)) {
-		/* Someone opened the device since we flushed it
-		 * so page cache could be dirty and it is too late
-		 * to flush.  So abort
-		 */
-		mutex_unlock(&mddev->open_mutex);
+		if (did_freeze) {
+			clear_bit(MD_RECOVERY_FROZEN, &mddev->recovery);
+			md_wakeup_thread(mddev->thread);
+		}
 		return -EBUSY;
 	}
 	if (mddev->pers) {
@@ -7931,6 +7960,7 @@ void md_reap_sync_thread(struct mddev *mddev)
 
 	/* resync has finished, collect result */
 	md_unregister_thread(&mddev->sync_thread);
+	wake_up(&resync_wait);
 	if (!test_bit(MD_RECOVERY_INTR, &mddev->recovery) &&
 	    !test_bit(MD_RECOVERY_REQUESTED, &mddev->recovery)) {
 		/* success...*/
-- 
cgit 


From 82592c38a85889fc9b52bf67afd4f6a336858a96 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 14 Nov 2013 15:16:18 +1100
Subject: md: Convert use of typedef ctl_table to struct ctl_table

This typedef is unnecessary and should just be removed.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/md.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 47e7bc74ed38..84fbc5bf4203 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -112,7 +112,7 @@ static inline int speed_max(struct mddev *mddev)
 
 static struct ctl_table_header *raid_table_header;
 
-static ctl_table raid_table[] = {
+static struct ctl_table raid_table[] = {
 	{
 		.procname	= "speed_limit_min",
 		.data		= &sysctl_speed_limit_min,
@@ -130,7 +130,7 @@ static ctl_table raid_table[] = {
 	{ }
 };
 
-static ctl_table raid_dir_table[] = {
+static struct ctl_table raid_dir_table[] = {
 	{
 		.procname	= "raid",
 		.maxlen		= 0,
@@ -140,7 +140,7 @@ static ctl_table raid_dir_table[] = {
 	{ }
 };
 
-static ctl_table raid_root_table[] = {
+static struct ctl_table raid_root_table[] = {
 	{
 		.procname	= "dev",
 		.maxlen		= 0,
-- 
cgit 


From b364e3d048e49b1d177eb7ee7853e77aa0560464 Mon Sep 17 00:00:00 2001
From: majianpeng <majianpeng@gmail.com>
Date: Thu, 14 Nov 2013 15:16:18 +1100
Subject: raid1: Add a field array_frozen to indicate whether raid in freeze
 state.

Because the following patch will rewrite the content between normal IO
and resync IO. So we used a parameter to indicate whether raid is in freeze
array.

Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid1.c | 15 +++++++--------
 drivers/md/raid1.h |  1 +
 2 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index aacf6bf352d8..729db21dc829 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -829,6 +829,7 @@ static void raise_barrier(struct r1conf *conf)
 
 	/* Now wait for all pending IO to complete */
 	wait_event_lock_irq(conf->wait_barrier,
+			    !conf->array_frozen &&
 			    !conf->nr_pending && conf->barrier < RESYNC_DEPTH,
 			    conf->resync_lock);
 
@@ -860,10 +861,11 @@ static void wait_barrier(struct r1conf *conf)
 		 * count down.
 		 */
 		wait_event_lock_irq(conf->wait_barrier,
-				    !conf->barrier ||
+				    !conf->array_frozen &&
+				    (!conf->barrier ||
 				    (conf->nr_pending &&
 				     current->bio_list &&
-				     !bio_list_empty(current->bio_list)),
+				     !bio_list_empty(current->bio_list))),
 				    conf->resync_lock);
 		conf->nr_waiting--;
 	}
@@ -884,8 +886,7 @@ static void freeze_array(struct r1conf *conf, int extra)
 {
 	/* stop syncio and normal IO and wait for everything to
 	 * go quite.
-	 * We increment barrier and nr_waiting, and then
-	 * wait until nr_pending match nr_queued+extra
+	 * We wait until nr_pending match nr_queued+extra
 	 * This is called in the context of one normal IO request
 	 * that has failed. Thus any sync request that might be pending
 	 * will be blocked by nr_pending, and we need to wait for
@@ -895,8 +896,7 @@ static void freeze_array(struct r1conf *conf, int extra)
 	 * we continue.
 	 */
 	spin_lock_irq(&conf->resync_lock);
-	conf->barrier++;
-	conf->nr_waiting++;
+	conf->array_frozen = 1;
 	wait_event_lock_irq_cmd(conf->wait_barrier,
 				conf->nr_pending == conf->nr_queued+extra,
 				conf->resync_lock,
@@ -907,8 +907,7 @@ static void unfreeze_array(struct r1conf *conf)
 {
 	/* reverse the effect of the freeze */
 	spin_lock_irq(&conf->resync_lock);
-	conf->barrier--;
-	conf->nr_waiting--;
+	conf->array_frozen = 0;
 	wake_up(&conf->wait_barrier);
 	spin_unlock_irq(&conf->resync_lock);
 }
diff --git a/drivers/md/raid1.h b/drivers/md/raid1.h
index 0ff3715fb7eb..331a98a231b4 100644
--- a/drivers/md/raid1.h
+++ b/drivers/md/raid1.h
@@ -65,6 +65,7 @@ struct r1conf {
 	int			nr_waiting;
 	int			nr_queued;
 	int			barrier;
+	int			array_frozen;
 
 	/* Set to 1 if a full sync is needed, (fresh device added).
 	 * Cleared when a sync completes.
-- 
cgit 


From 07169fd478ed2fbb3c894d524be9400658f16747 Mon Sep 17 00:00:00 2001
From: majianpeng <majianpeng@gmail.com>
Date: Thu, 14 Nov 2013 15:16:18 +1100
Subject: raid1: Replace raise_barrier/lower_barrier with
 freeze_array/unfreeze_array when reconfiguring the array.

We used to use raise_barrier to suspend normal IO while we reconfigure
the array.  However raise_barrier will soon only suspend some normal
IO, not all.  So we need something else.
Change it to use freeze_array.
But freeze_array not only suspends normal io, it also suspends
resync io.
For the place where call raise_barrier for reconfigure, it isn't a
problem.

Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid1.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 729db21dc829..ba5efb080862 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -2870,8 +2870,8 @@ static int stop(struct mddev *mddev)
 			   atomic_read(&bitmap->behind_writes) == 0);
 	}
 
-	raise_barrier(conf);
-	lower_barrier(conf);
+	freeze_array(conf, 0);
+	unfreeze_array(conf);
 
 	md_unregister_thread(&mddev->thread);
 	if (conf->r1bio_pool)
@@ -3030,10 +3030,10 @@ static void raid1_quiesce(struct mddev *mddev, int state)
 		wake_up(&conf->wait_barrier);
 		break;
 	case 1:
-		raise_barrier(conf);
+		freeze_array(conf, 0);
 		break;
 	case 0:
-		lower_barrier(conf);
+		unfreeze_array(conf);
 		break;
 	}
 }
@@ -3050,7 +3050,8 @@ static void *raid1_takeover(struct mddev *mddev)
 		mddev->new_chunk_sectors = 0;
 		conf = setup_conf(mddev);
 		if (!IS_ERR(conf))
-			conf->barrier = 1;
+			/* Array must appear to be quiesced */
+			conf->array_frozen = 1;
 		return conf;
 	}
 	return ERR_PTR(-EINVAL);
-- 
cgit 


From 8e005f7c0276317cfa8fcb0291a0df57f9ef832c Mon Sep 17 00:00:00 2001
From: majianpeng <majianpeng@gmail.com>
Date: Thu, 14 Nov 2013 15:16:18 +1100
Subject: raid1: Add some macros to make code clearly.

In a subsequent patch, we'll use some const parameters.
Using macros will make the code clearly.

Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid1.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index ba5efb080862..78da3392f577 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -84,10 +84,12 @@ static void r1bio_pool_free(void *r1_bio, void *data)
 }
 
 #define RESYNC_BLOCK_SIZE (64*1024)
-//#define RESYNC_BLOCK_SIZE PAGE_SIZE
+#define RESYNC_DEPTH 32
 #define RESYNC_SECTORS (RESYNC_BLOCK_SIZE >> 9)
 #define RESYNC_PAGES ((RESYNC_BLOCK_SIZE + PAGE_SIZE-1) / PAGE_SIZE)
-#define RESYNC_WINDOW (2048*1024)
+#define RESYNC_WINDOW (RESYNC_BLOCK_SIZE * RESYNC_DEPTH)
+#define RESYNC_WINDOW_SECTORS (RESYNC_WINDOW >> 9)
+#define NEXT_NORMALIO_DISTANCE (3 * RESYNC_WINDOW_SECTORS)
 
 static void * r1buf_pool_alloc(gfp_t gfp_flags, void *data)
 {
@@ -814,8 +816,6 @@ static void flush_pending_writes(struct r1conf *conf)
  *    there is no normal IO happeing.  It must arrange to call
  *    lower_barrier when the particular background IO completes.
  */
-#define RESYNC_DEPTH 32
-
 static void raise_barrier(struct r1conf *conf)
 {
 	spin_lock_irq(&conf->resync_lock);
-- 
cgit 


From 79ef3a8aa1cb1523cc231c9a90a278333c21f761 Mon Sep 17 00:00:00 2001
From: majianpeng <majianpeng@gmail.com>
Date: Fri, 15 Nov 2013 14:55:02 +0800
Subject: raid1: Rewrite the implementation of iobarrier.

There is an iobarrier in raid1 because of contention between normal IO and
resync IO.  It suspends all normal IO when resync/recovery happens.

However if normal IO is out side the resync window, there is no contention.
So this patch changes the barrier mechanism to only block IO that
could contend with the resync that is currently happening.

We partition the whole space into five parts.
|---------|-----------|------------|----------------|-------|
        start   next_resync   start_next_window    end_window

start + RESYNC_WINDOW = next_resync
next_resync + NEXT_NORMALIO_DISTANCE = start_next_window
start_next_window + NEXT_NORMALIO_DISTANCE = end_window

Firstly we introduce some concepts:

1 - RESYNC_WINDOW: For resync, there are 32 resync requests at most at the
      same time. A sync request is RESYNC_BLOCK_SIZE(64*1024).
      So the RESYNC_WINDOW is 32 * RESYNC_BLOCK_SIZE, that is 2MB.
2 - NEXT_NORMALIO_DISTANCE: the distance between next_resync
      and start_next_window.  It also indicates the distance between
      start_next_window and end_window.
      It is currently 3 * RESYNC_WINDOW_SIZE but could be tuned if
      this turned out not to be optimal.
3 - next_resync: the next sector at which we will do sync IO.
4 - start: a position which is at most RESYNC_WINDOW before
      next_resync.
5 - start_next_window:  a position which is NEXT_NORMALIO_DISTANCE
      beyond next_resync.  Normal-io after this position doesn't need to
      wait for resync-io to complete.
6 - end_window:  a position which is 2 * NEXT_NORMALIO_DISTANCE beyond
      next_resync.  This also doesn't need to wait, but is counted
      differently.
7 - current_window_requests:  the count of normalIO between
      start_next_window and end_window.
8 - next_window_requests: the count of normalIO after end_window.

NormalIO will be partitioned into four types:

NormIO1:  the end sector of bio is smaller or equal the start
NormIO2:  the start sector of bio larger or equal to end_window
NormIO3:  the start sector of bio larger or equal to
          start_next_window.
NormIO4:  the location between start_next_window and end_window

|--------|-----------|--------------------|----------------|-------------|
    | start   |   next_resync   |  start_next_window   |  end_window |
 NormIO1   NormIO4            NormIO4                NormIO3      NormIO2

For NormIO1, we don't need any io barrier.
For NormIO4, we used a similar approach to the original iobarrier
    mechanism.  The normalIO and resyncIO must be kept separate.
For NormIO2/3, we add two fields to struct r1conf: "current_window_requests"
    and "next_window_requests". They indicate the count of active
    requests in the two window.
    For these, we don't wait for resync io to complete.

For resync action, if there are NormIO4s, we must wait for it.
If not, we can proceed.
But if resync action reaches start_next_window and
current_window_requests > 0 (that is there are NormIO3s), we must
wait until the current_window_requests becomes zero.
When current_window_requests becomes zero,  start_next_window also
moves forward. Then current_window_requests will replaced by
next_window_requests.

There is a problem which when and how to change from NormIO2 to
NormIO3.  Only then can sync action progress.

We add a field in struct r1conf "start_next_window".

A: if start_next_window == MaxSector, it means there are no NormIO2/3.
   So start_next_window = next_resync + NEXT_NORMALIO_DISTANCE
B: if current_window_requests == 0 && next_window_requests != 0, it
   means start_next_window move to end_window

There is another problem which how to differentiate between
old NormIO2(now it is NormIO3) and NormIO2.
For example, there are many bios which are NormIO2 and a bio which is
NormIO3. NormIO3 firstly completed, so the bios of NormIO2 became NormIO3.

We add a field in struct r1bio "start_next_window".
This is used to record the position conf->start_next_window when the call
to wait_barrier() is made in make_request().

In allow_barrier(), we check the conf->start_next_window.
If r1bio->stat_next_window == conf->start_next_window, it means
there is no transition between NormIO2 and NormIO3.
If r1bio->start_next_window != conf->start_next_window, it mean
there was a transition between NormIO2 and NormIO3.  There can only
have been one transition.  So it only means the bio is old NormIO2.

For one bio, there may be many r1bio's. So we make sure
all the r1bio->start_next_window are the same value.
If we met blocked_dev in make_request(), it must call allow_barrier
and wait_barrier. So the former and the later value of
conf->start_next_window will be change.
If there are many r1bio's with differnet start_next_window,
for the relevant bio, it depend on the last value of r1bio.
It will cause error. To avoid this, we must wait for previous r1bios
to complete.

Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid1.c | 128 +++++++++++++++++++++++++++++++++++++++++++++++------
 drivers/md/raid1.h |  14 ++++++
 2 files changed, 129 insertions(+), 13 deletions(-)

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 78da3392f577..d9ee4edd7a53 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -66,7 +66,8 @@
  */
 static int max_queued_requests = 1024;
 
-static void allow_barrier(struct r1conf *conf);
+static void allow_barrier(struct r1conf *conf, sector_t start_next_window,
+			  sector_t bi_sector);
 static void lower_barrier(struct r1conf *conf);
 
 static void * r1bio_pool_alloc(gfp_t gfp_flags, void *data)
@@ -227,6 +228,8 @@ static void call_bio_endio(struct r1bio *r1_bio)
 	struct bio *bio = r1_bio->master_bio;
 	int done;
 	struct r1conf *conf = r1_bio->mddev->private;
+	sector_t start_next_window = r1_bio->start_next_window;
+	sector_t bi_sector = bio->bi_sector;
 
 	if (bio->bi_phys_segments) {
 		unsigned long flags;
@@ -234,6 +237,11 @@ static void call_bio_endio(struct r1bio *r1_bio)
 		bio->bi_phys_segments--;
 		done = (bio->bi_phys_segments == 0);
 		spin_unlock_irqrestore(&conf->device_lock, flags);
+		/*
+		 * make_request() might be waiting for
+		 * bi_phys_segments to decrease
+		 */
+		wake_up(&conf->wait_barrier);
 	} else
 		done = 1;
 
@@ -245,7 +253,7 @@ static void call_bio_endio(struct r1bio *r1_bio)
 		 * Wake up any possible resync thread that waits for the device
 		 * to go idle.
 		 */
-		allow_barrier(conf);
+		allow_barrier(conf, start_next_window, bi_sector);
 	}
 }
 
@@ -827,10 +835,19 @@ static void raise_barrier(struct r1conf *conf)
 	/* block any new IO from starting */
 	conf->barrier++;
 
-	/* Now wait for all pending IO to complete */
+	/* For these conditions we must wait:
+	 * A: while the array is in frozen state
+	 * B: while barrier >= RESYNC_DEPTH, meaning resync reach
+	 *    the max count which allowed.
+	 * C: next_resync + RESYNC_SECTORS > start_next_window, meaning
+	 *    next resync will reach to the window which normal bios are
+	 *    handling.
+	 */
 	wait_event_lock_irq(conf->wait_barrier,
 			    !conf->array_frozen &&
-			    !conf->nr_pending && conf->barrier < RESYNC_DEPTH,
+			    conf->barrier < RESYNC_DEPTH &&
+			    (conf->start_next_window >=
+			     conf->next_resync + RESYNC_SECTORS),
 			    conf->resync_lock);
 
 	spin_unlock_irq(&conf->resync_lock);
@@ -846,10 +863,33 @@ static void lower_barrier(struct r1conf *conf)
 	wake_up(&conf->wait_barrier);
 }
 
-static void wait_barrier(struct r1conf *conf)
+static bool need_to_wait_for_sync(struct r1conf *conf, struct bio *bio)
+{
+	bool wait = false;
+
+	if (conf->array_frozen || !bio)
+		wait = true;
+	else if (conf->barrier && bio_data_dir(bio) == WRITE) {
+		if (conf->next_resync < RESYNC_WINDOW_SECTORS)
+			wait = true;
+		else if ((conf->next_resync - RESYNC_WINDOW_SECTORS
+				>= bio_end_sector(bio)) ||
+			 (conf->next_resync + NEXT_NORMALIO_DISTANCE
+				<= bio->bi_sector))
+			wait = false;
+		else
+			wait = true;
+	}
+
+	return wait;
+}
+
+static sector_t wait_barrier(struct r1conf *conf, struct bio *bio)
 {
+	sector_t sector = 0;
+
 	spin_lock_irq(&conf->resync_lock);
-	if (conf->barrier) {
+	if (need_to_wait_for_sync(conf, bio)) {
 		conf->nr_waiting++;
 		/* Wait for the barrier to drop.
 		 * However if there are already pending
@@ -863,21 +903,65 @@ static void wait_barrier(struct r1conf *conf)
 		wait_event_lock_irq(conf->wait_barrier,
 				    !conf->array_frozen &&
 				    (!conf->barrier ||
-				    (conf->nr_pending &&
+				    ((conf->start_next_window <
+				      conf->next_resync + RESYNC_SECTORS) &&
 				     current->bio_list &&
 				     !bio_list_empty(current->bio_list))),
 				    conf->resync_lock);
 		conf->nr_waiting--;
 	}
+
+	if (bio && bio_data_dir(bio) == WRITE) {
+		if (conf->next_resync + NEXT_NORMALIO_DISTANCE
+		    <= bio->bi_sector) {
+			if (conf->start_next_window == MaxSector)
+				conf->start_next_window =
+					conf->next_resync +
+					NEXT_NORMALIO_DISTANCE;
+
+			if ((conf->start_next_window + NEXT_NORMALIO_DISTANCE)
+			    <= bio->bi_sector)
+				conf->next_window_requests++;
+			else
+				conf->current_window_requests++;
+		}
+		if (bio->bi_sector >= conf->start_next_window)
+			sector = conf->start_next_window;
+	}
+
 	conf->nr_pending++;
 	spin_unlock_irq(&conf->resync_lock);
+	return sector;
 }
 
-static void allow_barrier(struct r1conf *conf)
+static void allow_barrier(struct r1conf *conf, sector_t start_next_window,
+			  sector_t bi_sector)
 {
 	unsigned long flags;
+
 	spin_lock_irqsave(&conf->resync_lock, flags);
 	conf->nr_pending--;
+	if (start_next_window) {
+		if (start_next_window == conf->start_next_window) {
+			if (conf->start_next_window + NEXT_NORMALIO_DISTANCE
+			    <= bi_sector)
+				conf->next_window_requests--;
+			else
+				conf->current_window_requests--;
+		} else
+			conf->current_window_requests--;
+
+		if (!conf->current_window_requests) {
+			if (conf->next_window_requests) {
+				conf->current_window_requests =
+					conf->next_window_requests;
+				conf->next_window_requests = 0;
+				conf->start_next_window +=
+					NEXT_NORMALIO_DISTANCE;
+			} else
+				conf->start_next_window = MaxSector;
+		}
+	}
 	spin_unlock_irqrestore(&conf->resync_lock, flags);
 	wake_up(&conf->wait_barrier);
 }
@@ -1012,6 +1096,7 @@ static void make_request(struct mddev *mddev, struct bio * bio)
 	int first_clone;
 	int sectors_handled;
 	int max_sectors;
+	sector_t start_next_window;
 
 	/*
 	 * Register the new request and wait if the reconstruction
@@ -1041,7 +1126,7 @@ static void make_request(struct mddev *mddev, struct bio * bio)
 		finish_wait(&conf->wait_barrier, &w);
 	}
 
-	wait_barrier(conf);
+	start_next_window = wait_barrier(conf, bio);
 
 	bitmap = mddev->bitmap;
 
@@ -1162,6 +1247,7 @@ read_again:
 
 	disks = conf->raid_disks * 2;
  retry_write:
+	r1_bio->start_next_window = start_next_window;
 	blocked_rdev = NULL;
 	rcu_read_lock();
 	max_sectors = r1_bio->sectors;
@@ -1230,14 +1316,24 @@ read_again:
 	if (unlikely(blocked_rdev)) {
 		/* Wait for this device to become unblocked */
 		int j;
+		sector_t old = start_next_window;
 
 		for (j = 0; j < i; j++)
 			if (r1_bio->bios[j])
 				rdev_dec_pending(conf->mirrors[j].rdev, mddev);
 		r1_bio->state = 0;
-		allow_barrier(conf);
+		allow_barrier(conf, start_next_window, bio->bi_sector);
 		md_wait_for_blocked_rdev(blocked_rdev, mddev);
-		wait_barrier(conf);
+		start_next_window = wait_barrier(conf, bio);
+		/*
+		 * We must make sure the multi r1bios of bio have
+		 * the same value of bi_phys_segments
+		 */
+		if (bio->bi_phys_segments && old &&
+		    old != start_next_window)
+			/* Wait for the former r1bio(s) to complete */
+			wait_event(conf->wait_barrier,
+				   bio->bi_phys_segments == 1);
 		goto retry_write;
 	}
 
@@ -1437,11 +1533,14 @@ static void print_conf(struct r1conf *conf)
 
 static void close_sync(struct r1conf *conf)
 {
-	wait_barrier(conf);
-	allow_barrier(conf);
+	wait_barrier(conf, NULL);
+	allow_barrier(conf, 0, 0);
 
 	mempool_destroy(conf->r1buf_pool);
 	conf->r1buf_pool = NULL;
+
+	conf->next_resync = 0;
+	conf->start_next_window = MaxSector;
 }
 
 static int raid1_spare_active(struct mddev *mddev)
@@ -2713,6 +2812,9 @@ static struct r1conf *setup_conf(struct mddev *mddev)
 	conf->pending_count = 0;
 	conf->recovery_disabled = mddev->recovery_disabled - 1;
 
+	conf->start_next_window = MaxSector;
+	conf->current_window_requests = conf->next_window_requests = 0;
+
 	err = -EIO;
 	for (i = 0; i < conf->raid_disks * 2; i++) {
 
diff --git a/drivers/md/raid1.h b/drivers/md/raid1.h
index 331a98a231b4..9bebca7bff2f 100644
--- a/drivers/md/raid1.h
+++ b/drivers/md/raid1.h
@@ -41,6 +41,19 @@ struct r1conf {
 	 */
 	sector_t		next_resync;
 
+	/* When raid1 starts resync, we divide array into four partitions
+	 * |---------|--------------|---------------------|-------------|
+	 *        next_resync   start_next_window       end_window
+	 * start_next_window = next_resync + NEXT_NORMALIO_DISTANCE
+	 * end_window = start_next_window + NEXT_NORMALIO_DISTANCE
+	 * current_window_requests means the count of normalIO between
+	 *   start_next_window and end_window.
+	 * next_window_requests means the count of normalIO after end_window.
+	 * */
+	sector_t		start_next_window;
+	int			current_window_requests;
+	int			next_window_requests;
+
 	spinlock_t		device_lock;
 
 	/* list of 'struct r1bio' that need to be processed by raid1d,
@@ -112,6 +125,7 @@ struct r1bio {
 						 * in this BehindIO request
 						 */
 	sector_t		sector;
+	sector_t		start_next_window;
 	int			sectors;
 	unsigned long		state;
 	struct mddev		*mddev;
-- 
cgit 


From c0f8bd146a8b3e630798561c605f5669823107af Mon Sep 17 00:00:00 2001
From: Aurelien Jarno <aurelien@aurel32.net>
Date: Thu, 14 Nov 2013 15:16:19 +1100
Subject: UAPI: include <asm/byteorder.h> in linux/raid/md_p.h

linux/raid/md_p.h is using conditionals depending on endianess and fails
with an error if neither of __BIG_ENDIAN, __LITTLE_ENDIAN or
__BYTE_ORDER are defined, but it doesn't include any header which can
define these constants. This make this header unusable alone.

This patch adds a #include <asm/byteorder.h> at the beginning of this
header to make it usable alone. This is needed to compile klibc on MIPS.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 include/uapi/linux/raid/md_p.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/uapi/linux/raid/md_p.h b/include/uapi/linux/raid/md_p.h
index fe1a5406d4d9..f7cf7f351144 100644
--- a/include/uapi/linux/raid/md_p.h
+++ b/include/uapi/linux/raid/md_p.h
@@ -16,6 +16,7 @@
 #define _MD_P_H
 
 #include <linux/types.h>
+#include <asm/byteorder.h>
 
 /*
  * RAID superblock.
-- 
cgit 


From e59aa23f4c0c61b4baa5d535a2071d6666e83502 Mon Sep 17 00:00:00 2001
From: majianpeng <majianpeng@gmail.com>
Date: Thu, 14 Nov 2013 15:16:19 +1100
Subject: md/raid5: For stripe with R5_ReadNoMerge, we replace REQ_FLUSH with
 REQ_NOMERGE.

For R5_ReadNoMerge,it mean this bio can't merge with other bios or
request.It used REQ_FLUSH to achieve this. But REQ_NOMERGE can do the
same work.

Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid5.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 02f6bc2ac2db..6c724fde5fd8 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -874,7 +874,7 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s)
 				bi->bi_sector = (sh->sector
 						 + rdev->data_offset);
 			if (test_bit(R5_ReadNoMerge, &sh->dev[i].flags))
-				bi->bi_rw |= REQ_FLUSH;
+				bi->bi_rw |= REQ_NOMERGE;
 
 			bi->bi_vcnt = 1;
 			bi->bi_io_vec[0].bv_len = STRIPE_SIZE;
-- 
cgit 


From d206dcfa9809ec3409483e93b5e362f801fa0c27 Mon Sep 17 00:00:00 2001
From: majianpeng <majianpeng@gmail.com>
Date: Thu, 14 Nov 2013 15:16:19 +1100
Subject: md/raid5: Before freeing old multi-thread worker, it should flush
 them.

When changing group_thread_cnt from sysfs entry, the kernel can oops.

The kernel messages are:
[  740.961389] BUG: unable to handle kernel NULL pointer dereference at 0000000000000008
[  740.961444] IP: [<ffffffff81062570>] process_one_work+0x30/0x500
[  740.961476] PGD b9013067 PUD b651e067 PMD 0
[  740.961503] Oops: 0000 [#1] SMP
[  740.961525] Modules linked in: netconsole e1000e ptp pps_core
[  740.961577] CPU: 0 PID: 3683 Comm: kworker/u8:5 Not tainted 3.12.0+ #23
[  740.961602] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./To be filled by O.E.M., BIOS 080015  11/09/2011
[  740.961646] task: ffff88013abe0000 ti: ffff88013a246000 task.ti: ffff88013a246000
[  740.961673] RIP: 0010:[<ffffffff81062570>]  [<ffffffff81062570>] process_one_work+0x30/0x500
[  740.961708] RSP: 0018:ffff88013a247e08  EFLAGS: 00010086
[  740.961730] RAX: ffff8800b912b400 RBX: ffff88013a61e680 RCX: ffff8800b912b400
[  740.961757] RDX: ffff8800b912b600 RSI: ffff8800b912b600 RDI: ffff88013a61e680
[  740.961782] RBP: ffff88013a247e48 R08: ffff88013a246000 R09: 000000000002c09d
[  740.961808] R10: 000000000000010f R11: 0000000000000000 R12: ffff88013b00cc00
[  740.961833] R13: 0000000000000000 R14: ffff88013b00cf80 R15: ffff88013a61e6b0
[  740.961861] FS:  0000000000000000(0000) GS:ffff88013fc00000(0000) knlGS:0000000000000000
[  740.961893] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[  740.962001] CR2: 00000000000000b8 CR3: 00000000b24fe000 CR4: 00000000000407f0
[  740.962001] Stack:
[  740.962001]  0000000000000008 ffff8800b912b600 ffff88013b00cc00 ffff88013a61e680
[  740.962001]  ffff88013b00cc00 ffff88013b00cc18 ffff88013b00cf80 ffff88013a61e6b0
[  740.962001]  ffff88013a247eb8 ffffffff810639c6 0000000000012a80 ffff88013a247fd8
[  740.962001] Call Trace:
[  740.962001]  [<ffffffff810639c6>] worker_thread+0x206/0x3f0
[  740.962001]  [<ffffffff810637c0>] ? manage_workers+0x2c0/0x2c0
[  740.962001]  [<ffffffff81069656>] kthread+0xc6/0xd0
[  740.962001]  [<ffffffff81069590>] ? kthread_freezable_should_stop+0x70/0x70
[  740.962001]  [<ffffffff81722ffc>] ret_from_fork+0x7c/0xb0
[  740.962001]  [<ffffffff81069590>] ? kthread_freezable_should_stop+0x70/0x70
[  740.962001] Code: 89 e5 41 57 41 56 41 55 45 31 ed 41 54 53 48 89 fb 48 83 ec 18 48 8b 06 4c 8b 67 48 48 89 c1 30 c9 a8 04 4c 0f 45 e9 80 7f 58 00 <49> 8b 45 08 44 8b b0 00 01 00 00 78 0c 41 f6 44 24 10 04 0f 84
[  740.962001] RIP  [<ffffffff81062570>] process_one_work+0x30/0x500
[  740.962001]  RSP <ffff88013a247e08>
[  740.962001] CR2: 0000000000000008
[  740.962001] ---[ end trace 39181460000748de ]---
[  740.962001] Kernel panic - not syncing: Fatal exception

This can happen if there are some stripes left, fewer than MAX_STRIPE_BATCH.
A worker is queued to handle them.
But before calling raid5_do_work, raid5d handles those
stripes making conf->active_stripe = 0.
So mddev_suspend() can return.
We might then free old worker resources before the queued
raid5_do_work() handled them.  When it runs, it crashes.

	raid5d()		raid5_store_group_thread_cnt()
	queue_work		mddev_suspend()
				handle_strips
				active_stripe=0
				free(old worker resources)
	process_one_work
	raid5_do_work

To avoid this, we should only flush the worker resources before freeing them.

This fixes a bug introduced in 3.12 so is suitable for the 3.12.x
stable series.

Cc: stable@vger.kernel.org (3.12)
Fixes: b721420e8719131896b009b11edbbd27
Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Reviewed-by: Shaohua Li <shli@kernel.org>
---
 drivers/md/raid5.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 6c724fde5fd8..fea67727f807 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -5413,6 +5413,9 @@ raid5_store_group_thread_cnt(struct mddev *mddev, const char *page, size_t len)
 	old_groups = conf->worker_groups;
 	old_group_cnt = conf->worker_cnt_per_group;
 
+	if (old_groups)
+		flush_workqueue(raid5_wq);
+
 	conf->worker_groups = NULL;
 	err = alloc_thread_groups(conf, new);
 	if (err) {
-- 
cgit 


From 60aaf933854511630e16be4efe0f96485e132de4 Mon Sep 17 00:00:00 2001
From: majianpeng <majianpeng@gmail.com>
Date: Thu, 14 Nov 2013 15:16:20 +1100
Subject: md/raid5: Use conf->device_lock protect changing of multi-thread
 resources.

When we change group_thread_cnt from sysfs entry, it can OOPS.

The kernel messages are:
[  135.299021] BUG: unable to handle kernel NULL pointer dereference at           (null)
[  135.299073] IP: [<ffffffff815188ab>] handle_active_stripes+0x32b/0x440
[  135.299107] PGD 0
[  135.299122] Oops: 0000 [#1] SMP
[  135.299144] Modules linked in: netconsole e1000e ptp pps_core
[  135.299188] CPU: 3 PID: 2225 Comm: md0_raid5 Not tainted 3.12.0+ #24
[  135.299214] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./To be filled by O.E.M., BIOS 080015  11/09/2011
[  135.299255] task: ffff8800b9638f80 ti: ffff8800b77a4000 task.ti: ffff8800b77a4000
[  135.299283] RIP: 0010:[<ffffffff815188ab>]  [<ffffffff815188ab>] handle_active_stripes+0x32b/0x440
[  135.299323] RSP: 0018:ffff8800b77a5c48  EFLAGS: 00010002
[  135.299344] RAX: ffff880037bb5c70 RBX: 0000000000000000 RCX: 0000000000000008
[  135.299371] RDX: ffff880037bb5cb8 RSI: 0000000000000001 RDI: ffff880037bb5c00
[  135.299398] RBP: ffff8800b77a5d08 R08: 0000000000000001 R09: 0000000000000000
[  135.299425] R10: ffff8800b77a5c98 R11: 00000000ffffffff R12: ffff880037bb5c00
[  135.299452] R13: 0000000000000000 R14: 0000000000000000 R15: ffff880037bb5c70
[  135.299479] FS:  0000000000000000(0000) GS:ffff88013fd80000(0000) knlGS:0000000000000000
[  135.299510] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
[  135.299532] CR2: 0000000000000000 CR3: 0000000001c0b000 CR4: 00000000000407e0
[  135.299559] Stack:
[  135.299570]  ffff8800b77a5c88 ffffffff8107383e ffff8800b77a5c88 ffff880037a64300
[  135.299611]  000000000000ec08 ffff880037bb5cb8 ffff8800b77a5c98 ffffffffffffffd8
[  135.299654]  000000000000ec08 ffff880037bb5c60 ffff8800b77a5c98 ffff8800b77a5c98
[  135.299696] Call Trace:
[  135.299711]  [<ffffffff8107383e>] ? __wake_up+0x4e/0x70
[  135.299733]  [<ffffffff81518f88>] raid5d+0x4c8/0x680
[  135.299756]  [<ffffffff817174ed>] ? schedule_timeout+0x15d/0x1f0
[  135.299781]  [<ffffffff81524c9f>] md_thread+0x11f/0x170
[  135.299804]  [<ffffffff81069cd0>] ? wake_up_bit+0x40/0x40
[  135.299826]  [<ffffffff81524b80>] ? md_rdev_init+0x110/0x110
[  135.299850]  [<ffffffff81069656>] kthread+0xc6/0xd0
[  135.299871]  [<ffffffff81069590>] ? kthread_freezable_should_stop+0x70/0x70
[  135.299899]  [<ffffffff81722ffc>] ret_from_fork+0x7c/0xb0
[  135.299923]  [<ffffffff81069590>] ? kthread_freezable_should_stop+0x70/0x70
[  135.299951] Code: ff ff ff 0f 84 d7 fe ff ff e9 5c fe ff ff 66 90 41 8b b4 24 d8 01 00 00 45 31 ed 85 f6 0f 8e 7b fd ff ff 49 8b 9c 24 d0 01 00 00 <48> 3b 1b 49 89 dd 0f 85 67 fd ff ff 48 8d 43 28 31 d2 eb 17 90
[  135.300005] RIP  [<ffffffff815188ab>] handle_active_stripes+0x32b/0x440
[  135.300005]  RSP <ffff8800b77a5c48>
[  135.300005] CR2: 0000000000000000
[  135.300005] ---[ end trace 504854e5bb7562ed ]---
[  135.300005] Kernel panic - not syncing: Fatal exception

This is because raid5d() can be running when the multi-thread
resources are changed via system. We see need to provide locking.

mddev->device_lock is suitable, but we cannot simple call
alloc_thread_groups under this lock as we cannot allocate memory
while holding a spinlock.
So change alloc_thread_groups() to allocate and return the data
structures, then raid5_store_group_thread_cnt() can take the lock
while updating the pointers to the data structures.

This fixes a bug introduced in 3.12 and so is suitable for the 3.12.x
stable series.

Fixes: b721420e8719131896b009b11edbbd27
Cc: stable@vger.kernel.org (3.12)
Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Reviewed-by: Shaohua Li <shli@kernel.org>
---
 drivers/md/raid5.c | 63 +++++++++++++++++++++++++++++++++---------------------
 1 file changed, 39 insertions(+), 24 deletions(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index fea67727f807..c7db410190c4 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -5387,15 +5387,18 @@ raid5_show_group_thread_cnt(struct mddev *mddev, char *page)
 		return 0;
 }
 
-static int alloc_thread_groups(struct r5conf *conf, int cnt);
+static int alloc_thread_groups(struct r5conf *conf, int cnt,
+			       int *group_cnt,
+			       int *worker_cnt_per_group,
+			       struct r5worker_group **worker_groups);
 static ssize_t
 raid5_store_group_thread_cnt(struct mddev *mddev, const char *page, size_t len)
 {
 	struct r5conf *conf = mddev->private;
 	unsigned long new;
 	int err;
-	struct r5worker_group *old_groups;
-	int old_group_cnt;
+	struct r5worker_group *new_groups, *old_groups;
+	int group_cnt, worker_cnt_per_group;
 
 	if (len >= PAGE_SIZE)
 		return -EINVAL;
@@ -5411,17 +5414,19 @@ raid5_store_group_thread_cnt(struct mddev *mddev, const char *page, size_t len)
 	mddev_suspend(mddev);
 
 	old_groups = conf->worker_groups;
-	old_group_cnt = conf->worker_cnt_per_group;
-
 	if (old_groups)
 		flush_workqueue(raid5_wq);
 
-	conf->worker_groups = NULL;
-	err = alloc_thread_groups(conf, new);
-	if (err) {
-		conf->worker_groups = old_groups;
-		conf->worker_cnt_per_group = old_group_cnt;
-	} else {
+	err = alloc_thread_groups(conf, new,
+				  &group_cnt, &worker_cnt_per_group,
+				  &new_groups);
+	if (!err) {
+		spin_lock_irq(&conf->device_lock);
+		conf->group_cnt = group_cnt;
+		conf->worker_cnt_per_group = worker_cnt_per_group;
+		conf->worker_groups = new_groups;
+		spin_unlock_irq(&conf->device_lock);
+
 		if (old_groups)
 			kfree(old_groups[0].workers);
 		kfree(old_groups);
@@ -5451,33 +5456,36 @@ static struct attribute_group raid5_attrs_group = {
 	.attrs = raid5_attrs,
 };
 
-static int alloc_thread_groups(struct r5conf *conf, int cnt)
+static int alloc_thread_groups(struct r5conf *conf, int cnt,
+			       int *group_cnt,
+			       int *worker_cnt_per_group,
+			       struct r5worker_group **worker_groups)
 {
 	int i, j, k;
 	ssize_t size;
 	struct r5worker *workers;
 
-	conf->worker_cnt_per_group = cnt;
+	*worker_cnt_per_group = cnt;
 	if (cnt == 0) {
-		conf->worker_groups = NULL;
+		*group_cnt = 0;
+		*worker_groups = NULL;
 		return 0;
 	}
-	conf->group_cnt = num_possible_nodes();
+	*group_cnt = num_possible_nodes();
 	size = sizeof(struct r5worker) * cnt;
-	workers = kzalloc(size * conf->group_cnt, GFP_NOIO);
-	conf->worker_groups = kzalloc(sizeof(struct r5worker_group) *
-				conf->group_cnt, GFP_NOIO);
-	if (!conf->worker_groups || !workers) {
+	workers = kzalloc(size * *group_cnt, GFP_NOIO);
+	*worker_groups = kzalloc(sizeof(struct r5worker_group) *
+				*group_cnt, GFP_NOIO);
+	if (!*worker_groups || !workers) {
 		kfree(workers);
-		kfree(conf->worker_groups);
-		conf->worker_groups = NULL;
+		kfree(*worker_groups);
 		return -ENOMEM;
 	}
 
-	for (i = 0; i < conf->group_cnt; i++) {
+	for (i = 0; i < *group_cnt; i++) {
 		struct r5worker_group *group;
 
-		group = &conf->worker_groups[i];
+		group = worker_groups[i];
 		INIT_LIST_HEAD(&group->handle_list);
 		group->conf = conf;
 		group->workers = workers + i * cnt;
@@ -5640,6 +5648,8 @@ static struct r5conf *setup_conf(struct mddev *mddev)
 	struct disk_info *disk;
 	char pers_name[6];
 	int i;
+	int group_cnt, worker_cnt_per_group;
+	struct r5worker_group *new_group;
 
 	if (mddev->new_level != 5
 	    && mddev->new_level != 4
@@ -5674,7 +5684,12 @@ static struct r5conf *setup_conf(struct mddev *mddev)
 	if (conf == NULL)
 		goto abort;
 	/* Don't enable multi-threading by default*/
-	if (alloc_thread_groups(conf, 0))
+	if (!alloc_thread_groups(conf, 0, &group_cnt, &worker_cnt_per_group,
+				 &new_group)) {
+		conf->group_cnt = group_cnt;
+		conf->worker_cnt_per_group = worker_cnt_per_group;
+		conf->worker_groups = new_group;
+	} else
 		goto abort;
 	spin_lock_init(&conf->device_lock);
 	seqcount_init(&conf->gen_lock);
-- 
cgit 


From 777fb574a5f53fcf071b588f46756b672d9d883c Mon Sep 17 00:00:00 2001
From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Date: Tue, 19 Nov 2013 13:29:24 +0900
Subject: ALSA: firewire-lib: include sound/asound.h to refer to
 snd_pcm_format_t

'snd_pcm_format_t' is used by amdtp_out_stream_set_pcm_format().

Currently, when just including amdtp.h, compiler cannot find this type because
this type is defined in uapi/sound/asound.h and this header is not included by
amdtp.h.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/firewire/amdtp.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/firewire/amdtp.h b/sound/firewire/amdtp.h
index 839ebf812d79..2746ecd291af 100644
--- a/sound/firewire/amdtp.h
+++ b/sound/firewire/amdtp.h
@@ -4,6 +4,7 @@
 #include <linux/err.h>
 #include <linux/interrupt.h>
 #include <linux/mutex.h>
+#include <sound/asound.h>
 #include "packets-buffer.h"
 
 /**
-- 
cgit 


From 9f323b681139d99beb456aff08cf339b29f3c78d Mon Sep 17 00:00:00 2001
From: Sven Eckelmann <sven@narfation.org>
Date: Sun, 17 Nov 2013 20:38:21 +0100
Subject: HID: sony: Send FF commands in non-atomic context

The ff_memless has a timer running which gets run in an atomic context and
calls the play_effect callback. The callback function for sony uses the
hid_output_raw_report (overwritten by sixaxis_usb_output_raw_report) function
to handle differences in the control message format. It is not safe for an
atomic context because it may sleep later in usb_start_wait_urb.

This "scheduling while atomic" can cause the system to lock up. A workaround is
to make the force feedback state update using work_queues and use the
play_effect function only to enqueue the work item.

Reported-by: Simon Wood <simon@mungewell.org>
Reported-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wood <simon@mungewell.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-sony.c | 53 +++++++++++++++++++++++++++++++++++++++-----------
 1 file changed, 42 insertions(+), 11 deletions(-)

diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index da551d113762..098af2f84b8c 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -225,6 +225,13 @@ static const unsigned int buzz_keymap[] = {
 struct sony_sc {
 	unsigned long quirks;
 
+#ifdef CONFIG_SONY_FF
+	struct work_struct rumble_worker;
+	struct hid_device *hdev;
+	__u8 left;
+	__u8 right;
+#endif
+
 	void *extra;
 };
 
@@ -615,9 +622,9 @@ static void buzz_remove(struct hid_device *hdev)
 }
 
 #ifdef CONFIG_SONY_FF
-static int sony_play_effect(struct input_dev *dev, void *data,
-			    struct ff_effect *effect)
+static void sony_rumble_worker(struct work_struct *work)
 {
+	struct sony_sc *sc = container_of(work, struct sony_sc, rumble_worker);
 	unsigned char buf[] = {
 		0x01,
 		0x00, 0xff, 0x00, 0xff, 0x00,
@@ -628,21 +635,28 @@ static int sony_play_effect(struct input_dev *dev, void *data,
 		0xff, 0x27, 0x10, 0x00, 0x32,
 		0x00, 0x00, 0x00, 0x00, 0x00
 	};
-	__u8 left;
-	__u8 right;
+
+	buf[3] = sc->right;
+	buf[5] = sc->left;
+
+	sc->hdev->hid_output_raw_report(sc->hdev, buf, sizeof(buf),
+					HID_OUTPUT_REPORT);
+}
+
+static int sony_play_effect(struct input_dev *dev, void *data,
+			    struct ff_effect *effect)
+{
 	struct hid_device *hid = input_get_drvdata(dev);
+	struct sony_sc *sc = hid_get_drvdata(hid);
 
 	if (effect->type != FF_RUMBLE)
 		return 0;
 
-	left = effect->u.rumble.strong_magnitude / 256;
-	right = effect->u.rumble.weak_magnitude ? 1 : 0;
-
-	buf[3] = right;
-	buf[5] = left;
+	sc->left = effect->u.rumble.strong_magnitude / 256;
+	sc->right = effect->u.rumble.weak_magnitude ? 1 : 0;
 
-	return hid->hid_output_raw_report(hid, buf, sizeof(buf),
-					  HID_OUTPUT_REPORT);
+	schedule_work(&sc->rumble_worker);
+	return 0;
 }
 
 static int sony_init_ff(struct hid_device *hdev)
@@ -650,16 +664,31 @@ static int sony_init_ff(struct hid_device *hdev)
 	struct hid_input *hidinput = list_entry(hdev->inputs.next,
 						struct hid_input, list);
 	struct input_dev *input_dev = hidinput->input;
+	struct sony_sc *sc = hid_get_drvdata(hdev);
+
+	sc->hdev = hdev;
+	INIT_WORK(&sc->rumble_worker, sony_rumble_worker);
 
 	input_set_capability(input_dev, EV_FF, FF_RUMBLE);
 	return input_ff_create_memless(input_dev, NULL, sony_play_effect);
 }
 
+static void sony_destroy_ff(struct hid_device *hdev)
+{
+	struct sony_sc *sc = hid_get_drvdata(hdev);
+
+	cancel_work_sync(&sc->rumble_worker);
+}
+
 #else
 static int sony_init_ff(struct hid_device *hdev)
 {
 	return 0;
 }
+
+static void sony_destroy_ff(struct hid_device *hdev)
+{
+}
 #endif
 
 static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
@@ -728,6 +757,8 @@ static void sony_remove(struct hid_device *hdev)
 	if (sc->quirks & BUZZ_CONTROLLER)
 		buzz_remove(hdev);
 
+	sony_destroy_ff(hdev);
+
 	hid_hw_stop(hdev);
 }
 
-- 
cgit 


From 9316e58076f47bd242c3700d6f4aa1563fdb7192 Mon Sep 17 00:00:00 2001
From: Jiri Kosina <jkosina@suse.cz>
Date: Tue, 19 Nov 2013 11:28:03 +0100
Subject: Revert "HID: wiimote: add LEGO-wiimote VID"

This reverts commit 86b84167d4e67372376a57ea9955c5d53dae232f as it introduced a
VID/PID conflict with its original owner: hid-wiimote got
hid:b0005g*v0000054Cp00000306 added but hid-sony already has this id for the
PS3 Remote (and the ID is oficically assigned to Sony).

Revert the commit to avoid hid-sony regression. David is working on a
bluez patch to force proper ID on the wiimote.

Reported-by: David Herrmann <dh.herrmann@gmail.com>
Reported-by: Michel Kraus <mksolpa@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-core.c         | 1 -
 drivers/hid/hid-ids.h          | 1 -
 drivers/hid/hid-wiimote-core.c | 5 +----
 3 files changed, 1 insertion(+), 6 deletions(-)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 8c10f2742233..957d35ba84bc 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1879,7 +1879,6 @@ static const struct hid_device_id hid_have_special_driver[] = {
 
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
-	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO2, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) },
 	{ }
 };
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 76559629568c..60336f06874c 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -640,7 +640,6 @@
 #define USB_DEVICE_ID_NEXTWINDOW_TOUCHSCREEN	0x0003
 
 #define USB_VENDOR_ID_NINTENDO		0x057e
-#define USB_VENDOR_ID_NINTENDO2		0x054c
 #define USB_DEVICE_ID_NINTENDO_WIIMOTE	0x0306
 #define USB_DEVICE_ID_NINTENDO_WIIMOTE2	0x0330
 
diff --git a/drivers/hid/hid-wiimote-core.c b/drivers/hid/hid-wiimote-core.c
index 1446f526ee8b..abb20db2b443 100644
--- a/drivers/hid/hid-wiimote-core.c
+++ b/drivers/hid/hid-wiimote-core.c
@@ -834,8 +834,7 @@ static void wiimote_init_set_type(struct wiimote_data *wdata,
 		goto done;
 	}
 
-	if (vendor == USB_VENDOR_ID_NINTENDO ||
-	    vendor == USB_VENDOR_ID_NINTENDO2) {
+	if (vendor == USB_VENDOR_ID_NINTENDO) {
 		if (product == USB_DEVICE_ID_NINTENDO_WIIMOTE) {
 			devtype = WIIMOTE_DEV_GEN10;
 			goto done;
@@ -1856,8 +1855,6 @@ static void wiimote_hid_remove(struct hid_device *hdev)
 static const struct hid_device_id wiimote_hid_devices[] = {
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
 				USB_DEVICE_ID_NINTENDO_WIIMOTE) },
-	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO2,
-				USB_DEVICE_ID_NINTENDO_WIIMOTE) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO,
 				USB_DEVICE_ID_NINTENDO_WIIMOTE2) },
 	{ }
-- 
cgit 


From 521290003a34115fa06f048285bcb5b7708eee9f Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Tue, 19 Nov 2013 10:25:53 +0100
Subject: ALSA: hda - Also enable mute/micmute LED control for "Lenovo dock"
 fixup

The docking station is a Thinkpad thing, so it makes sense to check
for mute/micmute LEDs for that quirk type too.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 05987ffb59d0..8593d4ebd192 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3945,6 +3945,8 @@ static const struct hda_fixup alc269_fixups[] = {
 	[ALC269_FIXUP_PINCFG_NO_HP_TO_LINEOUT] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc269_fixup_pincfg_no_hp_to_lineout,
+		.chained = true,
+		.chain_id = ALC269_FIXUP_THINKPAD_ACPI,
 	},
 	[ALC269_FIXUP_DELL1_MIC_NO_PRESENCE] = {
 		.type = HDA_FIXUP_PINS,
-- 
cgit 


From be1c1fe21b3a9d48580bdf976c8dac844f456290 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon, 18 Nov 2013 18:32:36 -0800
Subject: drm/i915: Hold pc8 lock around toggling pc8.gpu_idle

We need to hold the pc8 lock around toggling the value of gpu_idle.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/i915/intel_display.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index de6edd0f6205..0b77916e7ea6 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -6585,18 +6585,22 @@ done:
 
 static void hsw_package_c8_gpu_idle(struct drm_i915_private *dev_priv)
 {
+	mutex_lock(&dev_priv->pc8.lock);
 	if (!dev_priv->pc8.gpu_idle) {
 		dev_priv->pc8.gpu_idle = true;
-		hsw_enable_package_c8(dev_priv);
+		__hsw_enable_package_c8(dev_priv);
 	}
+	mutex_unlock(&dev_priv->pc8.lock);
 }
 
 static void hsw_package_c8_gpu_busy(struct drm_i915_private *dev_priv)
 {
+	mutex_lock(&dev_priv->pc8.lock);
 	if (dev_priv->pc8.gpu_idle) {
 		dev_priv->pc8.gpu_idle = false;
-		hsw_disable_package_c8(dev_priv);
+		__hsw_disable_package_c8(dev_priv);
 	}
+	mutex_unlock(&dev_priv->pc8.lock);
 }
 
 #define for_each_power_domain(domain, mask)				\
-- 
cgit 


From 7c6c2652bab9601883ed579071aa56ab52a28ea6 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Mon, 18 Nov 2013 18:32:37 -0800
Subject: drm/i915: Do not enable package C8 on unsupported hardware

If the hardware does not support package C8, then do not even schedule
work to enable it. Thereby we can eliminate a bunch of dangerous work.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/i915/i915_drv.h      |  1 +
 drivers/gpu/drm/i915/intel_display.c | 15 +++++++++++++++
 2 files changed, 16 insertions(+)

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 8600c315b4c4..ccdbecca070d 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1816,6 +1816,7 @@ struct drm_i915_file_private {
 #define HAS_POWER_WELL(dev)	(IS_HASWELL(dev) || IS_BROADWELL(dev))
 #define HAS_FPGA_DBG_UNCLAIMED(dev)	(INTEL_INFO(dev)->has_fpga_dbg)
 #define HAS_PSR(dev)		(IS_HASWELL(dev) || IS_BROADWELL(dev))
+#define HAS_PC8(dev)		(IS_HASWELL(dev)) /* XXX HSW:ULX */
 
 #define INTEL_PCH_DEVICE_ID_MASK		0xff00
 #define INTEL_PCH_IBX_DEVICE_ID_TYPE		0x3b00
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index 0b77916e7ea6..7ec8b488bb1d 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -6518,6 +6518,9 @@ static void __hsw_disable_package_c8(struct drm_i915_private *dev_priv)
 
 void hsw_enable_package_c8(struct drm_i915_private *dev_priv)
 {
+	if (!HAS_PC8(dev_priv->dev))
+		return;
+
 	mutex_lock(&dev_priv->pc8.lock);
 	__hsw_enable_package_c8(dev_priv);
 	mutex_unlock(&dev_priv->pc8.lock);
@@ -6525,6 +6528,9 @@ void hsw_enable_package_c8(struct drm_i915_private *dev_priv)
 
 void hsw_disable_package_c8(struct drm_i915_private *dev_priv)
 {
+	if (!HAS_PC8(dev_priv->dev))
+		return;
+
 	mutex_lock(&dev_priv->pc8.lock);
 	__hsw_disable_package_c8(dev_priv);
 	mutex_unlock(&dev_priv->pc8.lock);
@@ -6562,6 +6568,9 @@ static void hsw_update_package_c8(struct drm_device *dev)
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	bool allow;
 
+	if (!HAS_PC8(dev_priv->dev))
+		return;
+
 	if (!i915_enable_pc8)
 		return;
 
@@ -6585,6 +6594,9 @@ done:
 
 static void hsw_package_c8_gpu_idle(struct drm_i915_private *dev_priv)
 {
+	if (!HAS_PC8(dev_priv->dev))
+		return;
+
 	mutex_lock(&dev_priv->pc8.lock);
 	if (!dev_priv->pc8.gpu_idle) {
 		dev_priv->pc8.gpu_idle = true;
@@ -6595,6 +6607,9 @@ static void hsw_package_c8_gpu_idle(struct drm_i915_private *dev_priv)
 
 static void hsw_package_c8_gpu_busy(struct drm_i915_private *dev_priv)
 {
+	if (!HAS_PC8(dev_priv->dev))
+		return;
+
 	mutex_lock(&dev_priv->pc8.lock);
 	if (dev_priv->pc8.gpu_idle) {
 		dev_priv->pc8.gpu_idle = false;
-- 
cgit 


From a5285ad9e30fd90b88a11adcab97bd4c3ffe44eb Mon Sep 17 00:00:00 2001
From: Frederic Weisbecker <fweisbec@gmail.com>
Date: Sat, 16 Nov 2013 02:02:09 +0100
Subject: perf tools: Tag thread comm as overriden

The problem is that when a thread overrides its default ":%pid" comm, we
forget to tag the thread comm as overriden. Hence, this overriden comm
is not inherited on future forks. Fix it.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Tested-by: David Ahern <dsahern@gmail.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20131116010207.GA18855@localhost.localdomain
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/thread.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/tools/perf/util/thread.c b/tools/perf/util/thread.c
index cd8e2f592719..49eaf1d7d89d 100644
--- a/tools/perf/util/thread.c
+++ b/tools/perf/util/thread.c
@@ -70,14 +70,13 @@ int thread__set_comm(struct thread *thread, const char *str, u64 timestamp)
 	/* Override latest entry if it had no specific time coverage */
 	if (!curr->start) {
 		comm__override(curr, str, timestamp);
-		return 0;
+	} else {
+		new = comm__new(str, timestamp);
+		if (!new)
+			return -ENOMEM;
+		list_add(&new->list, &thread->comm_list);
 	}
 
-	new = comm__new(str, timestamp);
-	if (!new)
-		return -ENOMEM;
-
-	list_add(&new->list, &thread->comm_list);
 	thread->comm_set = true;
 
 	return 0;
-- 
cgit 


From 210e812f036736aeda097d9a6ef84b1f2b334bae Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Mon, 18 Nov 2013 11:20:43 +0900
Subject: perf header: Fix bogus group name

When processing event group descriptor in perf file header, we reuse an
allocated group name but forgot to prevent it from freeing.

Reported-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1384741244-7271-1-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/header.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 369c03648f88..559c516f1cec 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2078,8 +2078,10 @@ static int process_group_desc(struct perf_file_section *section __maybe_unused,
 		if (evsel->idx == (int) desc[i].leader_idx) {
 			evsel->leader = evsel;
 			/* {anon_group} is a dummy name */
-			if (strcmp(desc[i].name, "{anon_group}"))
+			if (strcmp(desc[i].name, "{anon_group}")) {
 				evsel->group_name = desc[i].name;
+				desc[i].name = NULL;
+			}
 			evsel->nr_members = desc[i].nr_members;
 
 			if (i >= nr_groups || nr > 0) {
-- 
cgit 


From 50a2740b839ece03b305facd3fc07cdc3b74247c Mon Sep 17 00:00:00 2001
From: Namhyung Kim <namhyung.kim@lge.com>
Date: Mon, 18 Nov 2013 11:20:44 +0900
Subject: perf header: Fix possible memory leaks in process_group_desc()

After processing all group descriptors or encountering an error, it
frees all descriptors.  However, current logic can leak memory since it
might not traverse all descriptors.

Note that the 'i' can have different value than nr_groups when an error
occurred and it's safe to call free(desc[i].name) for every desc since
we already make it NULL when it's reused for group names.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1384741244-7271-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/util/header.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 559c516f1cec..1cd035708931 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2107,7 +2107,7 @@ static int process_group_desc(struct perf_file_section *section __maybe_unused,
 
 	ret = 0;
 out_free:
-	while ((int) --i >= 0)
+	for (i = 0; i < nr_groups; i++)
 		free(desc[i].name);
 	free(desc);
 
-- 
cgit 


From eff2c92f86c2ac2a0eab3749d58be39592293c3a Mon Sep 17 00:00:00 2001
From: Steven Rostedt <rostedt@goodmis.org>
Date: Mon, 18 Nov 2013 14:23:14 -0500
Subject: tools lib traceevent: Fix use of multiple options in processing field

Jiri Olsa reported that the scsi_dispatch_cmd_done event failed to parse
with:

  Error: expected type 5 but read 4
  Error: expected type 5 but read 4

The problem is with this part of the print_fmt:

  __print_symbolic(((REC->result) >> 24) & 0xff, ...

The __print_symbolic() helper function's first parameter is the field to
use to determine what symbol to print based on the value of the result.
The parser can handle one operation, but it can not handle multiple
operations ('>>' and '&').

Add code to process all operations for the field argument for
__print_symbolic() as well as __print_flags().

Reported-by: Jiri Olsa <jolsa@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lkml.kernel.org/r/20131118142314.27ca334b@gandalf.local.home
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.c | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 0362d575de7d..8a5b65df6efb 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -1606,6 +1606,24 @@ process_arg(struct event_format *event, struct print_arg *arg, char **tok)
 static enum event_type
 process_op(struct event_format *event, struct print_arg *arg, char **tok);
 
+/*
+ * For __print_symbolic() and __print_flags, we need to completely
+ * evaluate the first argument, which defines what to print next.
+ */
+static enum event_type
+process_field_arg(struct event_format *event, struct print_arg *arg, char **tok)
+{
+	enum event_type type;
+
+	type = process_arg(event, arg, tok);
+
+	while (type == EVENT_OP) {
+		type = process_op(event, arg, tok);
+	}
+
+	return type;
+}
+
 static enum event_type
 process_cond(struct event_format *event, struct print_arg *top, char **tok)
 {
@@ -2371,7 +2389,7 @@ process_flags(struct event_format *event, struct print_arg *arg, char **tok)
 		goto out_free;
 	}
 
-	type = process_arg(event, field, &token);
+	type = process_field_arg(event, field, &token);
 
 	/* Handle operations in the first argument */
 	while (type == EVENT_OP)
@@ -2424,7 +2442,8 @@ process_symbols(struct event_format *event, struct print_arg *arg, char **tok)
 		goto out_free;
 	}
 
-	type = process_arg(event, field, &token);
+	type = process_field_arg(event, field, &token);
+
 	if (test_type_token(type, token, EVENT_DELIM, ","))
 		goto out_free_field;
 
-- 
cgit 


From d689fe222a858c767cb8594faf280048e532b53f Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 13 Nov 2013 21:01:57 +0100
Subject: NOHZ: Check for nohz active instead of nohz enabled

RCU and the fine grained idle time accounting functions check
tick_nohz_enabled. But that variable is merily telling that NOHZ has
been enabled in the config and not been disabled on the command line.

But it does not tell anything about nohz being active. That's what all
this should check for.

Matthew reported, that the idle accounting on his old P1 machine
showed bogus values, when he enabled NOHZ in the config and did not
disable it on the kernel command line. The reason is that his machine
uses (refined) jiffies as a clocksource which explains why the "fine"
grained accounting went into lala land, because it depends on when the
system goes and leaves idle relative to the jiffies increment.

Provide a tick_nohz_active indicator and let RCU and the accounting
code use this instead of tick_nohz_enable.

Reported-and-tested-by: Matthew Whitehead <tedheadster@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: john.stultz@linaro.org
Cc: mwhitehe@redhat.com
Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1311132052240.30673@ionos.tec.linutronix.de
---
 kernel/rcu/tree_plugin.h |  4 ++--
 kernel/time/tick-sched.c | 21 +++++++++------------
 2 files changed, 11 insertions(+), 14 deletions(-)

diff --git a/kernel/rcu/tree_plugin.h b/kernel/rcu/tree_plugin.h
index 6abb03dff5c0..08a765232432 100644
--- a/kernel/rcu/tree_plugin.h
+++ b/kernel/rcu/tree_plugin.h
@@ -1632,7 +1632,7 @@ module_param(rcu_idle_gp_delay, int, 0644);
 static int rcu_idle_lazy_gp_delay = RCU_IDLE_LAZY_GP_DELAY;
 module_param(rcu_idle_lazy_gp_delay, int, 0644);
 
-extern int tick_nohz_enabled;
+extern int tick_nohz_active;
 
 /*
  * Try to advance callbacks for all flavors of RCU on the current CPU, but
@@ -1729,7 +1729,7 @@ static void rcu_prepare_for_idle(int cpu)
 	int tne;
 
 	/* Handle nohz enablement switches conservatively. */
-	tne = ACCESS_ONCE(tick_nohz_enabled);
+	tne = ACCESS_ONCE(tick_nohz_active);
 	if (tne != rdtp->tick_nohz_enabled_snap) {
 		if (rcu_cpu_has_callbacks(cpu, NULL))
 			invoke_rcu_core(); /* force nohz to see update. */
diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index 3612fc77f834..a12df5abde0b 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -361,8 +361,8 @@ void __init tick_nohz_init(void)
 /*
  * NO HZ enabled ?
  */
-int tick_nohz_enabled __read_mostly  = 1;
-
+static int tick_nohz_enabled __read_mostly  = 1;
+int tick_nohz_active  __read_mostly;
 /*
  * Enable / Disable tickless mode
  */
@@ -465,7 +465,7 @@ u64 get_cpu_idle_time_us(int cpu, u64 *last_update_time)
 	struct tick_sched *ts = &per_cpu(tick_cpu_sched, cpu);
 	ktime_t now, idle;
 
-	if (!tick_nohz_enabled)
+	if (!tick_nohz_active)
 		return -1;
 
 	now = ktime_get();
@@ -506,7 +506,7 @@ u64 get_cpu_iowait_time_us(int cpu, u64 *last_update_time)
 	struct tick_sched *ts = &per_cpu(tick_cpu_sched, cpu);
 	ktime_t now, iowait;
 
-	if (!tick_nohz_enabled)
+	if (!tick_nohz_active)
 		return -1;
 
 	now = ktime_get();
@@ -799,11 +799,6 @@ void tick_nohz_idle_enter(void)
 	local_irq_disable();
 
 	ts = &__get_cpu_var(tick_cpu_sched);
-	/*
-	 * set ts->inidle unconditionally. even if the system did not
-	 * switch to nohz mode the cpu frequency governers rely on the
-	 * update of the idle time accounting in tick_nohz_start_idle().
-	 */
 	ts->inidle = 1;
 	__tick_nohz_idle_enter(ts);
 
@@ -973,7 +968,7 @@ static void tick_nohz_switch_to_nohz(void)
 	struct tick_sched *ts = &__get_cpu_var(tick_cpu_sched);
 	ktime_t next;
 
-	if (!tick_nohz_enabled)
+	if (!tick_nohz_active)
 		return;
 
 	local_irq_disable();
@@ -981,7 +976,7 @@ static void tick_nohz_switch_to_nohz(void)
 		local_irq_enable();
 		return;
 	}
-
+	tick_nohz_active = 1;
 	ts->nohz_mode = NOHZ_MODE_LOWRES;
 
 	/*
@@ -1139,8 +1134,10 @@ void tick_setup_sched_timer(void)
 	}
 
 #ifdef CONFIG_NO_HZ_COMMON
-	if (tick_nohz_enabled)
+	if (tick_nohz_enabled) {
 		ts->nohz_mode = NOHZ_MODE_HIGHRES;
+		tick_nohz_active = 1;
+	}
 #endif
 }
 #endif /* HIGH_RES_TIMERS */
-- 
cgit 


From da554eba2e68c8ec051977db5ee1f42d384a01ed Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Fri, 15 Nov 2013 14:15:31 -0800
Subject: timer: Convert kmalloc_node(...GFP_ZERO...) to kzalloc_node(...)

Use the helper function instead of __GFP_ZERO.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 kernel/timer.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/kernel/timer.c b/kernel/timer.c
index 6582b82fa966..accfd241b9e5 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1518,9 +1518,8 @@ static int init_timers_cpu(int cpu)
 			/*
 			 * The APs use this path later in boot
 			 */
-			base = kmalloc_node(sizeof(*base),
-						GFP_KERNEL | __GFP_ZERO,
-						cpu_to_node(cpu));
+			base = kzalloc_node(sizeof(*base), GFP_KERNEL,
+					    cpu_to_node(cpu));
 			if (!base)
 				return -ENOMEM;
 
-- 
cgit 


From 050ded1bbaea3331745cf2782315f5bc2582d083 Mon Sep 17 00:00:00 2001
From: Andrew Morton <akpm@linux-foundation.org>
Date: Fri, 15 Nov 2013 14:15:33 -0800
Subject: tick: Document tick_do_timer_cpu

Taken straight from a tglx email ;)

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 kernel/time/tick-common.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/kernel/time/tick-common.c b/kernel/time/tick-common.c
index 64522ecdfe0e..162b03ab0ad2 100644
--- a/kernel/time/tick-common.c
+++ b/kernel/time/tick-common.c
@@ -33,6 +33,21 @@ DEFINE_PER_CPU(struct tick_device, tick_cpu_device);
  */
 ktime_t tick_next_period;
 ktime_t tick_period;
+
+/*
+ * tick_do_timer_cpu is a timer core internal variable which holds the CPU NR
+ * which is responsible for calling do_timer(), i.e. the timekeeping stuff. This
+ * variable has two functions:
+ *
+ * 1) Prevent a thundering herd issue of a gazillion of CPUs trying to grab the
+ *    timekeeping lock all at once. Only the CPU which is assigned to do the
+ *    update is handling it.
+ *
+ * 2) Hand off the duty in the NOHZ idle case by setting the value to
+ *    TICK_DO_TIMER_NONE, i.e. a non existing CPU. So the next cpu which looks
+ *    at it will take over and keep the time keeping alive.  The handover
+ *    procedure also covers cpu hotplug.
+ */
 int tick_do_timer_cpu __read_mostly = TICK_DO_TIMER_BOOT;
 
 /*
-- 
cgit 


From acab78b99633f12aa2b697474562e19c5718a1ca Mon Sep 17 00:00:00 2001
From: Luís Fernando Cornachioni Estrozi <lestrozi@uolinc.com>
Date: Wed, 6 Nov 2013 21:39:32 +0000
Subject: netfilter: ebt_ip6: fix source and destination matching
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This bug was introduced on commit 0898f99a2. This just recovers two
checks that existed before as suggested by Bart De Schuymer.

Signed-off-by: Luís Fernando Cornachioni Estrozi <lestrozi@uolinc.com>
Signed-off-by: Bart De Schuymer <bdschuym@pandora.be>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/bridge/netfilter/ebt_ip6.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/net/bridge/netfilter/ebt_ip6.c b/net/bridge/netfilter/ebt_ip6.c
index 99c85668f551..17fd5f2cb4b8 100644
--- a/net/bridge/netfilter/ebt_ip6.c
+++ b/net/bridge/netfilter/ebt_ip6.c
@@ -48,10 +48,12 @@ ebt_ip6_mt(const struct sk_buff *skb, struct xt_action_param *par)
 	if (info->bitmask & EBT_IP6_TCLASS &&
 	   FWINV(info->tclass != ipv6_get_dsfield(ih6), EBT_IP6_TCLASS))
 		return false;
-	if (FWINV(ipv6_masked_addr_cmp(&ih6->saddr, &info->smsk,
-				       &info->saddr), EBT_IP6_SOURCE) ||
+	if ((info->bitmask & EBT_IP6_SOURCE &&
+	    FWINV(ipv6_masked_addr_cmp(&ih6->saddr, &info->smsk,
+				       &info->saddr), EBT_IP6_SOURCE)) ||
+	    (info->bitmask & EBT_IP6_DEST &&
 	    FWINV(ipv6_masked_addr_cmp(&ih6->daddr, &info->dmsk,
-				       &info->daddr), EBT_IP6_DEST))
+				       &info->daddr), EBT_IP6_DEST)))
 		return false;
 	if (info->bitmask & EBT_IP6_PROTO) {
 		uint8_t nexthdr = ih6->nexthdr;
-- 
cgit 


From d5b5f391d434c5cc8bcb1ab2d759738797b85f52 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Thu, 14 Nov 2013 16:23:04 +0100
Subject: ftrace, perf: Avoid infinite event generation loop

Vince's perf-trinity fuzzer found yet another 'interesting' problem.

When we sample the irq_work_exit tracepoint with period==1 (or
PERF_SAMPLE_PERIOD) and we add an fasync SIGNAL handler we create an
infinite event generation loop:

  ,-> <IPI>
  |     irq_work_exit() ->
  |       trace_irq_work_exit() ->
  |         ...
  |           __perf_event_overflow() -> (due to fasync)
  |             irq_work_queue() -> (irq_work_list must be empty)
  '---------      arch_irq_work_raise()

Similar things can happen due to regular poll() wakeups if we exceed
the ring-buffer wakeup watermark, or have an event_limit.

To avoid this, dis-allow sampling this particular tracepoint.

In order to achieve this, create a special perf_perm function pointer
for each event and call this (when set) on trying to create a
tracepoint perf event.

[ roasted: use expr... to allow for ',' in your expression ]

Reported-by: Vince Weaver <vincent.weaver@maine.edu>
Tested-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Dave Jones <davej@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/r/20131114152304.GC5364@laptop.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 arch/x86/include/asm/trace/irq_vectors.h | 11 +++++++++++
 include/linux/ftrace_event.h             | 16 ++++++++++++++++
 include/linux/tracepoint.h               |  4 ++++
 include/trace/ftrace.h                   |  7 +++++++
 kernel/trace/trace_event_perf.c          |  6 ++++++
 5 files changed, 44 insertions(+)

diff --git a/arch/x86/include/asm/trace/irq_vectors.h b/arch/x86/include/asm/trace/irq_vectors.h
index 2874df24e7a4..4cab890007a7 100644
--- a/arch/x86/include/asm/trace/irq_vectors.h
+++ b/arch/x86/include/asm/trace/irq_vectors.h
@@ -71,6 +71,17 @@ DEFINE_IRQ_VECTOR_EVENT(x86_platform_ipi);
  */
 DEFINE_IRQ_VECTOR_EVENT(irq_work);
 
+/*
+ * We must dis-allow sampling irq_work_exit() because perf event sampling
+ * itself can cause irq_work, which would lead to an infinite loop;
+ *
+ *  1) irq_work_exit happens
+ *  2) generates perf sample
+ *  3) generates irq_work
+ *  4) goto 1
+ */
+TRACE_EVENT_PERF_PERM(irq_work_exit, is_sampling_event(p_event) ? -EPERM : 0);
+
 /*
  * call_function - called when entering/exiting a call function interrupt
  * vector handler
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index 9abbe630c456..8c9b7a1c4138 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -248,6 +248,9 @@ struct ftrace_event_call {
 #ifdef CONFIG_PERF_EVENTS
 	int				perf_refcount;
 	struct hlist_head __percpu	*perf_events;
+
+	int	(*perf_perm)(struct ftrace_event_call *,
+			     struct perf_event *);
 #endif
 };
 
@@ -317,6 +320,19 @@ struct ftrace_event_file {
 	}								\
 	early_initcall(trace_init_flags_##name);
 
+#define __TRACE_EVENT_PERF_PERM(name, expr...)				\
+	static int perf_perm_##name(struct ftrace_event_call *tp_event, \
+				    struct perf_event *p_event)		\
+	{								\
+		return ({ expr; });					\
+	}								\
+	static int __init trace_init_perf_perm_##name(void)		\
+	{								\
+		event_##name.perf_perm = &perf_perm_##name;		\
+		return 0;						\
+	}								\
+	early_initcall(trace_init_perf_perm_##name);
+
 #define PERF_MAX_TRACE_SIZE	2048
 
 #define MAX_FILTER_STR_VAL	256	/* Should handle KSYM_SYMBOL_LEN */
diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h
index ebeab360d851..f16dc0a40049 100644
--- a/include/linux/tracepoint.h
+++ b/include/linux/tracepoint.h
@@ -267,6 +267,8 @@ static inline void tracepoint_synchronize_unregister(void)
 
 #define TRACE_EVENT_FLAGS(event, flag)
 
+#define TRACE_EVENT_PERF_PERM(event, expr...)
+
 #endif /* DECLARE_TRACE */
 
 #ifndef TRACE_EVENT
@@ -399,4 +401,6 @@ static inline void tracepoint_synchronize_unregister(void)
 
 #define TRACE_EVENT_FLAGS(event, flag)
 
+#define TRACE_EVENT_PERF_PERM(event, expr...)
+
 #endif /* ifdef TRACE_EVENT (see note above) */
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 52594b20179e..6b852f60f8ae 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -90,6 +90,10 @@
 #define TRACE_EVENT_FLAGS(name, value)					\
 	__TRACE_EVENT_FLAGS(name, value)
 
+#undef TRACE_EVENT_PERF_PERM
+#define TRACE_EVENT_PERF_PERM(name, expr...)				\
+	__TRACE_EVENT_PERF_PERM(name, expr)
+
 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
 
 
@@ -140,6 +144,9 @@
 #undef TRACE_EVENT_FLAGS
 #define TRACE_EVENT_FLAGS(event, flag)
 
+#undef TRACE_EVENT_PERF_PERM
+#define TRACE_EVENT_PERF_PERM(event, expr...)
+
 #include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
 
 /*
diff --git a/kernel/trace/trace_event_perf.c b/kernel/trace/trace_event_perf.c
index 78e27e3b52ac..630889f68b1d 100644
--- a/kernel/trace/trace_event_perf.c
+++ b/kernel/trace/trace_event_perf.c
@@ -24,6 +24,12 @@ static int	total_ref_count;
 static int perf_trace_event_perm(struct ftrace_event_call *tp_event,
 				 struct perf_event *p_event)
 {
+	if (tp_event->perf_perm) {
+		int ret = tp_event->perf_perm(tp_event, p_event);
+		if (ret)
+			return ret;
+	}
+
 	/* The ftrace function trace is allowed only for root. */
 	if (ftrace_event_is_function(tp_event) &&
 	    perf_paranoid_tracepoint_raw() && !capable(CAP_SYS_ADMIN))
-- 
cgit 


From 06db0b21712f878b808480ef31097637013bbf0f Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Fri, 13 Sep 2013 13:14:47 +0200
Subject: perf: Remove fragile swevent hlist optimization

Currently we only allocate a single cpu hashtable for per-cpu
swevents; do away with this optimization for it is fragile in the face
of things like perf_pmu_migrate_context().

The easiest thing is to make sure all CPUs are consistent wrt state.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20130913111447.GN31370@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/events/core.c | 8 --------
 1 file changed, 8 deletions(-)

diff --git a/kernel/events/core.c b/kernel/events/core.c
index d724e7757cd1..72348dc192c1 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5680,11 +5680,6 @@ static void swevent_hlist_put(struct perf_event *event)
 {
 	int cpu;
 
-	if (event->cpu != -1) {
-		swevent_hlist_put_cpu(event, event->cpu);
-		return;
-	}
-
 	for_each_possible_cpu(cpu)
 		swevent_hlist_put_cpu(event, cpu);
 }
@@ -5718,9 +5713,6 @@ static int swevent_hlist_get(struct perf_event *event)
 	int err;
 	int cpu, failed_cpu;
 
-	if (event->cpu != -1)
-		return swevent_hlist_get_cpu(event, event->cpu);
-
 	get_online_cpus();
 	for_each_possible_cpu(cpu) {
 		err = swevent_hlist_get_cpu(event, cpu);
-- 
cgit 


From 0022cedd4a7d8a87841351e2b018bb6794cf2e67 Mon Sep 17 00:00:00 2001
From: Vince Weaver <vincent.weaver@maine.edu>
Date: Fri, 15 Nov 2013 12:39:45 -0500
Subject: perf/trace: Properly use u64 to hold event_id

The 64-bit attr.config value for perf trace events was being copied into
an "int" before doing a comparison, meaning the top 32 bits were
being truncated.

As far as I can tell this didn't cause any errors, but it did mean
it was possible to create valid aliases for all the tracepoint ids
which I don't think was intended.  (For example, 0xffffffff00000018
and 0x18 both enable the same tracepoint).

Signed-off-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1311151236100.11932@vincent-weaver-1.um.maine.edu
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/trace/trace_event_perf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/trace_event_perf.c b/kernel/trace/trace_event_perf.c
index 630889f68b1d..e854f420e033 100644
--- a/kernel/trace/trace_event_perf.c
+++ b/kernel/trace/trace_event_perf.c
@@ -179,7 +179,7 @@ static int perf_trace_event_init(struct ftrace_event_call *tp_event,
 int perf_trace_init(struct perf_event *p_event)
 {
 	struct ftrace_event_call *tp_event;
-	int event_id = p_event->attr.config;
+	u64 event_id = p_event->attr.config;
 	int ret = -EINVAL;
 
 	mutex_lock(&event_mutex);
-- 
cgit 


From 1021442098ee9328fdd4d113d63a3a7f2f40c37b Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Mon, 18 Nov 2013 07:38:16 +0100
Subject: drm/i915: Replicate BIOS eDP bpp clamping hack for hsw
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Haswell's DDI encoders have their own ->get_config callback and in

commit c6cd2ee2d59111a07cd9199564c9bdcb2d11e5cf
Author: Jani Nikula <jani.nikula@intel.com>
Date:   Mon Oct 21 10:52:07 2013 +0300

    drm/i915/dp: workaround BIOS eDP bpp clamping issue

we've forgotten to replicate this hack. So let's do it that.

Note for backporters: The above commit and all it's depencies need to
be backported first.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=71049
Cc: stable@vger.kernel.org
Tested-by: Gökçen Eraslan <gokcen.eraslan@gmail.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/i915/intel_ddi.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
index 1591576a6101..330077bcd0bd 100644
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1406,6 +1406,26 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
 	default:
 		break;
 	}
+
+	if (encoder->type == INTEL_OUTPUT_EDP && dev_priv->vbt.edp_bpp &&
+	    pipe_config->pipe_bpp > dev_priv->vbt.edp_bpp) {
+		/*
+		 * This is a big fat ugly hack.
+		 *
+		 * Some machines in UEFI boot mode provide us a VBT that has 18
+		 * bpp and 1.62 GHz link bandwidth for eDP, which for reasons
+		 * unknown we fail to light up. Yet the same BIOS boots up with
+		 * 24 bpp and 2.7 GHz link. Use the same bpp as the BIOS uses as
+		 * max, not what it tells us to use.
+		 *
+		 * Note: This will still be broken if the eDP panel is not lit
+		 * up by the BIOS, and thus we can't get the mode at module
+		 * load.
+		 */
+		DRM_DEBUG_KMS("pipe has %d bpp for eDP panel, overriding BIOS-provided max %d bpp\n",
+			      pipe_config->pipe_bpp, dev_priv->vbt.edp_bpp);
+		dev_priv->vbt.edp_bpp = pipe_config->pipe_bpp;
+	}
 }
 
 static void intel_ddi_destroy(struct drm_encoder *encoder)
-- 
cgit 


From 9abf24d465180f5f2eb26a43545348262f16b771 Mon Sep 17 00:00:00 2001
From: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Date: Tue, 12 Nov 2013 22:11:26 +0530
Subject: sched: Check sched_domain before computing group power

After commit 863bffc80898 ("sched/fair: Fix group power_orig
computation"), we can dereference rq->sd before it is set.

Fix this by falling back to power_of() in this case and add a comment
explaining things.

Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
[ Added comment and tweaked patch. ]
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: mikey@neuling.org
Link: http://lkml.kernel.org/r/20131113151718.GN21461@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/fair.c | 27 ++++++++++++++++++++++++---
 1 file changed, 24 insertions(+), 3 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index e8b652ebe027..fd773ade1a31 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5379,10 +5379,31 @@ void update_group_power(struct sched_domain *sd, int cpu)
 		 */
 
 		for_each_cpu(cpu, sched_group_cpus(sdg)) {
-			struct sched_group *sg = cpu_rq(cpu)->sd->groups;
+			struct sched_group_power *sgp;
+			struct rq *rq = cpu_rq(cpu);
 
-			power_orig += sg->sgp->power_orig;
-			power += sg->sgp->power;
+			/*
+			 * build_sched_domains() -> init_sched_groups_power()
+			 * gets here before we've attached the domains to the
+			 * runqueues.
+			 *
+			 * Use power_of(), which is set irrespective of domains
+			 * in update_cpu_power().
+			 *
+			 * This avoids power/power_orig from being 0 and
+			 * causing divide-by-zero issues on boot.
+			 *
+			 * Runtime updates will correct power_orig.
+			 */
+			if (unlikely(!rq->sd)) {
+				power_orig += power_of(cpu);
+				power += power_of(cpu);
+				continue;
+			}
+
+			sgp = rq->sd->groups->sgp;
+			power_orig += sgp->power_orig;
+			power += sgp->power;
 		}
 	} else  {
 		/*
-- 
cgit 


From 42eb088ed246a5a817bb45a8b32fe234cf1c0f8b Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Tue, 19 Nov 2013 16:41:49 +0100
Subject: sched: Avoid NULL dereference on sd_busy

Commit 37dc6b50cee9 ("sched: Remove unnecessary iteration over sched
domains to update nr_busy_cpus") forgot to clear 'sd_busy' under some
conditions leading to a possible NULL deref in set_cpu_sd_state_idle().

Reported-by: Anton Blanchard <anton@samba.org>
Cc: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131118113701.GF3866@twins.programming.kicks-ass.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/core.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index c1808606ee5f..a1591ca7eb5a 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4910,8 +4910,9 @@ static void update_top_cache_domain(int cpu)
 	if (sd) {
 		id = cpumask_first(sched_domain_span(sd));
 		size = cpumask_weight(sched_domain_span(sd));
-		rcu_assign_pointer(per_cpu(sd_busy, cpu), sd->parent);
+		sd = sd->parent; /* sd_busy */
 	}
+	rcu_assign_pointer(per_cpu(sd_busy, cpu), sd);
 
 	rcu_assign_pointer(per_cpu(sd_llc, cpu), sd);
 	per_cpu(sd_llc_size, cpu) = size;
-- 
cgit 


From b972fc308c2763096b61b62169f2167ee0ca5a19 Mon Sep 17 00:00:00 2001
From: Alex Shi <alex.shi@linaro.org>
Date: Tue, 19 Nov 2013 17:21:52 +0800
Subject: sched: Remove unused variable in 'struct sched_domain'

The 'u64 last_update' variable isn't used now, remove it to save a bit of space.

Signed-off-by: Alex Shi <alex.shi@linaro.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Morten.Rasmussen@arm.com
Cc: linaro-kernel@lists.linaro.org
Link: http://lkml.kernel.org/r/1384852912-24791-1-git-send-email-alex.shi@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 include/linux/sched.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/include/linux/sched.h b/include/linux/sched.h
index f7efc8604652..b122395bf5f4 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -823,8 +823,6 @@ struct sched_domain {
 	unsigned int balance_interval;	/* initialise to 1. units in ms. */
 	unsigned int nr_balance_failed; /* initialise to 0 */
 
-	u64 last_update;
-
 	/* idle_balance() stats */
 	u64 max_newidle_lb_cost;
 	unsigned long next_decay_max_lb_cost;
-- 
cgit 


From 0515973ffb16c2852a1bb1df2ca1456556faaaa5 Mon Sep 17 00:00:00 2001
From: Shigeru Yoshida <shigeru.yoshida@gmail.com>
Date: Sun, 17 Nov 2013 12:12:36 +0900
Subject: sched: Fix a trivial typo in comments

Fix a trivial typo in rq_attach_root().

Signed-off-by: Shigeru Yoshida <shigeru.yoshida@gmail.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20131117.121236.1990617639803941055.shigeru.yoshida@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index a1591ca7eb5a..718730dd0480 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -4762,7 +4762,7 @@ static void rq_attach_root(struct rq *rq, struct root_domain *rd)
 		cpumask_clear_cpu(rq->cpu, old_rd->span);
 
 		/*
-		 * If we dont want to free the old_rt yet then
+		 * If we dont want to free the old_rd yet then
 		 * set old_rd to NULL to skip the freeing later
 		 * in this function:
 		 */
-- 
cgit 


From 94eddfbeaafa3e8040a2c47d370dea0e58e76941 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Tue, 19 Nov 2013 09:25:07 -0700
Subject: blk-mq: ensure that we set REQ_IO_STAT so diskstats work

If disk stats are enabled on the queue, a request needs to
be marked with REQ_IO_STAT for accounting to be active on
that request. This fixes an issue with virtio-blk not
showing up in /proc/diskstats after the conversion to
blk-mq.

Add QUEUE_FLAG_MQ_DEFAULT, setting stats and same cpu-group
completion on by default.

Reported-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-mq.c         | 12 ++++++++----
 include/linux/blkdev.h |  3 +++
 2 files changed, 11 insertions(+), 4 deletions(-)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 862f458d4760..32593dba4684 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -171,9 +171,12 @@ bool blk_mq_can_queue(struct blk_mq_hw_ctx *hctx)
 }
 EXPORT_SYMBOL(blk_mq_can_queue);
 
-static void blk_mq_rq_ctx_init(struct blk_mq_ctx *ctx, struct request *rq,
-			       unsigned int rw_flags)
+static void blk_mq_rq_ctx_init(struct request_queue *q, struct blk_mq_ctx *ctx,
+			       struct request *rq, unsigned int rw_flags)
 {
+	if (blk_queue_io_stat(q))
+		rw_flags |= REQ_IO_STAT;
+
 	rq->mq_ctx = ctx;
 	rq->cmd_flags = rw_flags;
 	ctx->rq_dispatched[rw_is_sync(rw_flags)]++;
@@ -197,7 +200,7 @@ static struct request *blk_mq_alloc_request_pinned(struct request_queue *q,
 
 		rq = __blk_mq_alloc_request(hctx, gfp & ~__GFP_WAIT, reserved);
 		if (rq) {
-			blk_mq_rq_ctx_init(ctx, rq, rw);
+			blk_mq_rq_ctx_init(q, ctx, rq, rw);
 			break;
 		} else if (!(gfp & __GFP_WAIT))
 			break;
@@ -921,7 +924,7 @@ static void blk_mq_make_request(struct request_queue *q, struct bio *bio)
 	trace_block_getrq(q, bio, rw);
 	rq = __blk_mq_alloc_request(hctx, GFP_ATOMIC, false);
 	if (likely(rq))
-		blk_mq_rq_ctx_init(ctx, rq, rw);
+		blk_mq_rq_ctx_init(q, ctx, rq, rw);
 	else {
 		blk_mq_put_ctx(ctx);
 		trace_block_sleeprq(q, bio, rw);
@@ -1377,6 +1380,7 @@ struct request_queue *blk_mq_init_queue(struct blk_mq_reg *reg,
 	q->queue_hw_ctx = hctxs;
 
 	q->mq_ops = reg->ops;
+	q->queue_flags |= QUEUE_FLAG_MQ_DEFAULT;
 
 	blk_queue_make_request(q, blk_mq_make_request);
 	blk_queue_rq_timed_out(q, reg->ops->timeout);
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index f26ec20f6354..1b135d49b279 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -505,6 +505,9 @@ struct request_queue {
 				 (1 << QUEUE_FLAG_SAME_COMP)	|	\
 				 (1 << QUEUE_FLAG_ADD_RANDOM))
 
+#define QUEUE_FLAG_MQ_DEFAULT	((1 << QUEUE_FLAG_IO_STAT) |		\
+				 (1 << QUEUE_FLAG_SAME_COMP))
+
 static inline void queue_lockdep_assert_held(struct request_queue *q)
 {
 	if (q->queue_lock)
-- 
cgit 


From 6bab2c613d7fa70bb8514f89ab7455ede717142b Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Fri, 15 Nov 2013 14:15:07 -0800
Subject: genirq: Correct fuzzy and fragile IRQ_RETVAL() definition

commit bedd30d986a0 ("genirq: make irqreturn_t an enum") blindly replaced
"0" by "IRQ_NONE" in the "IRQ_RETVAL(x)" macro definition.

However, as "x" is a condition, "0" meant "boolean false", not an
irqreturn_t value.

All of this worked, and kept working after the addition of IRQ_WAKE_THREAD,
as
  - both "boolean false" and "IRQ_NONE" are "0" (for the comparison),
  - "boolean true" and "boolean false" nicely map to the correct values of
    "IRQ_HANDLED" and "IRQ_NONE" (for the return value).

Correct the macro definition for clarity and future-proofness.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 include/linux/irqreturn.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/irqreturn.h b/include/linux/irqreturn.h
index 714ba08dc092..e374e369fb2f 100644
--- a/include/linux/irqreturn.h
+++ b/include/linux/irqreturn.h
@@ -14,6 +14,6 @@ enum irqreturn {
 };
 
 typedef enum irqreturn irqreturn_t;
-#define IRQ_RETVAL(x)	((x) != IRQ_NONE)
+#define IRQ_RETVAL(x)	((x) ? IRQ_HANDLED : IRQ_NONE)
 
 #endif
-- 
cgit 


From 63e6d43bf80d3861dcda7ff4f37590f8de583156 Mon Sep 17 00:00:00 2001
From: Lee Jones <lee.jones@linaro.org>
Date: Tue, 19 Nov 2013 10:58:17 +0000
Subject: ASoC: ab8500: Revert to using custom I/O functions

It's been reported that these break audio on Snowball so revert them
until a Snowball user has time to investigate.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/ab8500-codec.c | 66 +++++++++++++++++++++--------------------
 1 file changed, 34 insertions(+), 32 deletions(-)

diff --git a/sound/soc/codecs/ab8500-codec.c b/sound/soc/codecs/ab8500-codec.c
index a0394a8f2257..79902179c657 100644
--- a/sound/soc/codecs/ab8500-codec.c
+++ b/sound/soc/codecs/ab8500-codec.c
@@ -126,8 +126,6 @@ struct ab8500_codec_drvdata_dbg {
 
 /* Private data for AB8500 device-driver */
 struct ab8500_codec_drvdata {
-	struct regmap *regmap;
-
 	/* Sidetone */
 	long *sid_fir_values;
 	enum sid_state sid_status;
@@ -168,34 +166,48 @@ static inline const char *amic_type_str(enum amic_type type)
  */
 
 /* Read a register from the audio-bank of AB8500 */
-static int ab8500_codec_read_reg(void *context, unsigned int reg,
-				 unsigned int *value)
+static unsigned int ab8500_codec_read_reg(struct snd_soc_codec *codec,
+					unsigned int reg)
 {
-	struct device *dev = context;
 	int status;
+	unsigned int value = 0;
 
 	u8 value8;
-	status = abx500_get_register_interruptible(dev, AB8500_AUDIO,
-						   reg, &value8);
-	*value = (unsigned int)value8;
+	status = abx500_get_register_interruptible(codec->dev, AB8500_AUDIO,
+						reg, &value8);
+	if (status < 0) {
+		dev_err(codec->dev,
+			"%s: ERROR: Register (0x%02x:0x%02x) read failed (%d).\n",
+			__func__, (u8)AB8500_AUDIO, (u8)reg, status);
+	} else {
+		dev_dbg(codec->dev,
+			"%s: Read 0x%02x from register 0x%02x:0x%02x\n",
+			__func__, value8, (u8)AB8500_AUDIO, (u8)reg);
+		value = (unsigned int)value8;
+	}
 
-	return status;
+	return value;
 }
 
 /* Write to a register in the audio-bank of AB8500 */
-static int ab8500_codec_write_reg(void *context, unsigned int reg,
-				  unsigned int value)
+static int ab8500_codec_write_reg(struct snd_soc_codec *codec,
+				unsigned int reg, unsigned int value)
 {
-	struct device *dev = context;
+	int status;
 
-	return abx500_set_register_interruptible(dev, AB8500_AUDIO,
-						 reg, value);
-}
+	status = abx500_set_register_interruptible(codec->dev, AB8500_AUDIO,
+						reg, value);
+	if (status < 0)
+		dev_err(codec->dev,
+			"%s: ERROR: Register (%02x:%02x) write failed (%d).\n",
+			__func__, (u8)AB8500_AUDIO, (u8)reg, status);
+	else
+		dev_dbg(codec->dev,
+			"%s: Wrote 0x%02x into register %02x:%02x\n",
+			__func__, (u8)value, (u8)AB8500_AUDIO, (u8)reg);
 
-static const struct regmap_config ab8500_codec_regmap = {
-	.reg_read = ab8500_codec_read_reg,
-	.reg_write = ab8500_codec_write_reg,
-};
+	return status;
+}
 
 /*
  * Controls - DAPM
@@ -2473,13 +2485,9 @@ static int ab8500_codec_probe(struct snd_soc_codec *codec)
 
 	dev_dbg(dev, "%s: Enter.\n", __func__);
 
-	snd_soc_codec_set_cache_io(codec, 0, 0, SND_SOC_REGMAP);
-
 	/* Setup AB8500 according to board-settings */
 	pdata = dev_get_platdata(dev->parent);
 
-	codec->control_data = drvdata->regmap;
-
 	if (np) {
 		if (!pdata)
 			pdata = devm_kzalloc(dev,
@@ -2557,6 +2565,9 @@ static int ab8500_codec_probe(struct snd_soc_codec *codec)
 
 static struct snd_soc_codec_driver ab8500_codec_driver = {
 	.probe =		ab8500_codec_probe,
+	.read =			ab8500_codec_read_reg,
+	.write =		ab8500_codec_write_reg,
+	.reg_word_size =	sizeof(u8),
 	.controls =		ab8500_ctrls,
 	.num_controls =		ARRAY_SIZE(ab8500_ctrls),
 	.dapm_widgets =		ab8500_dapm_widgets,
@@ -2579,15 +2590,6 @@ static int ab8500_codec_driver_probe(struct platform_device *pdev)
 	drvdata->anc_status = ANC_UNCONFIGURED;
 	dev_set_drvdata(&pdev->dev, drvdata);
 
-	drvdata->regmap = devm_regmap_init(&pdev->dev, NULL, &pdev->dev,
-					   &ab8500_codec_regmap);
-	if (IS_ERR(drvdata->regmap)) {
-		status = PTR_ERR(drvdata->regmap);
-		dev_err(&pdev->dev, "%s: Failed to allocate regmap: %d\n",
-			__func__, status);
-		return status;
-	}
-
 	dev_dbg(&pdev->dev, "%s: Register codec.\n", __func__);
 	status = snd_soc_register_codec(&pdev->dev, &ab8500_codec_driver,
 				ab8500_codec_dai,
-- 
cgit 


From f69f86b1ba6493126a7f093a65a8952bcb183de2 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Tue, 19 Nov 2013 10:51:29 +0000
Subject: ASoC: wm5110: Add post SYSCLK register patch for rev D chip

Certain registers require patching after the SYSCLK has been brought up
add support for this into the CODEC driver.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
---
 sound/soc/codecs/wm5110.c | 43 ++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 42 insertions(+), 1 deletion(-)

diff --git a/sound/soc/codecs/wm5110.c b/sound/soc/codecs/wm5110.c
index bbd64384ca1c..0048ce5bfa2f 100644
--- a/sound/soc/codecs/wm5110.c
+++ b/sound/soc/codecs/wm5110.c
@@ -37,6 +37,47 @@ struct wm5110_priv {
 	struct arizona_fll fll[2];
 };
 
+static const struct reg_default wm5110_sysclk_revd_patch[] = {
+	{ 0x3093, 0x1001 },
+	{ 0x30E3, 0x1301 },
+	{ 0x3133, 0x1201 },
+	{ 0x3183, 0x1501 },
+	{ 0x31D3, 0x1401 },
+};
+
+static int wm5110_sysclk_ev(struct snd_soc_dapm_widget *w,
+			    struct snd_kcontrol *kcontrol, int event)
+{
+	struct snd_soc_codec *codec = w->codec;
+	struct arizona *arizona = dev_get_drvdata(codec->dev->parent);
+	struct regmap *regmap = codec->control_data;
+	const struct reg_default *patch = NULL;
+	int i, patch_size;
+
+	switch (arizona->rev) {
+	case 3:
+		patch = wm5110_sysclk_revd_patch;
+		patch_size = ARRAY_SIZE(wm5110_sysclk_revd_patch);
+		break;
+	default:
+		return 0;
+	}
+
+	switch (event) {
+	case SND_SOC_DAPM_POST_PMU:
+		if (patch)
+			for (i = 0; i < patch_size; i++)
+				regmap_write(regmap, patch[i].reg,
+					     patch[i].def);
+		break;
+
+	default:
+		break;
+	}
+
+	return 0;
+}
+
 static DECLARE_TLV_DB_SCALE(ana_tlv, 0, 100, 0);
 static DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
 static DECLARE_TLV_DB_SCALE(digital_tlv, -6400, 50, 0);
@@ -400,7 +441,7 @@ static const struct snd_kcontrol_new wm5110_aec_loopback_mux =
 
 static const struct snd_soc_dapm_widget wm5110_dapm_widgets[] = {
 SND_SOC_DAPM_SUPPLY("SYSCLK", ARIZONA_SYSTEM_CLOCK_1, ARIZONA_SYSCLK_ENA_SHIFT,
-		    0, NULL, 0),
+		    0, wm5110_sysclk_ev, SND_SOC_DAPM_POST_PMU),
 SND_SOC_DAPM_SUPPLY("ASYNCCLK", ARIZONA_ASYNC_CLOCK_1,
 		    ARIZONA_ASYNC_CLK_ENA_SHIFT, 0, NULL, 0),
 SND_SOC_DAPM_SUPPLY("OPCLK", ARIZONA_OUTPUT_SYSTEM_CLOCK,
-- 
cgit 


From b5f3d7af286a28e2fcc92debaba40844cb32bfb4 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 8 Nov 2013 12:46:10 +0300
Subject: ASoC: rcar: off by one in rsnd_scu_set_route()

If "id == ARRAY_SIZE(routes)" then we read one space beyond the end of
the routes[] array.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/sh/rcar/scu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/sh/rcar/scu.c b/sound/soc/sh/rcar/scu.c
index 1ab1bce6be7f..5e46ef2e8bb8 100644
--- a/sound/soc/sh/rcar/scu.c
+++ b/sound/soc/sh/rcar/scu.c
@@ -68,7 +68,7 @@ static int rsnd_scu_set_route(struct rsnd_priv *priv,
 		return 0;
 
 	id = rsnd_mod_id(mod);
-	if (id < 0 || id > ARRAY_SIZE(routes))
+	if (id < 0 || id >= ARRAY_SIZE(routes))
 		return -EIO;
 
 	/*
-- 
cgit 


From a0d32bca511fd6b570e964ca38a0c3dcd9eacafb Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Sun, 17 Nov 2013 18:45:16 -0800
Subject: ASoC: rcar: fixup dma_async_issue_pending() timing

DMAEngine will stall without this patch

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/sh/rcar/core.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/sound/soc/sh/rcar/core.c b/sound/soc/sh/rcar/core.c
index 2e09ee8d2500..4e55f9d9ef43 100644
--- a/sound/soc/sh/rcar/core.c
+++ b/sound/soc/sh/rcar/core.c
@@ -199,9 +199,8 @@ static void rsnd_dma_do_work(struct work_struct *work)
 			return;
 		}
 
+		dma_async_issue_pending(dma->chan);
 	}
-
-	dma_async_issue_pending(dma->chan);
 }
 
 int rsnd_dma_available(struct rsnd_dma *dma)
-- 
cgit 


From 6b5fa0ba4f85a8499287aefaf3f1375450c40c6d Mon Sep 17 00:00:00 2001
From: Arnaldo Carvalho de Melo <acme@redhat.com>
Date: Tue, 19 Nov 2013 16:14:51 -0300
Subject: tools lib traceevent: Fix conversion of pointer to integer of
 different size
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

gcc complaint on 32-bit system:

  /home/acme/git/linux/tools/lib/traceevent/event-parse.c: In function ‘eval_num_arg’:
  /home/acme/git/linux/tools/lib/traceevent/event-parse.c:3468:9: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]

This is because the eval_num_arg returns everything as an 'unsigned long long',
so it converts a void pointer to a wider integer, fix it by converting the void
pointer to an integer of the same size, 'unsigned long', before casting it to
'unsigned long long'.

Acked-by: Steven Rostedt <rostedt@goodmis.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-yllx4aqcg06v5n4vjpwiiuld@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/event-parse.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 8a5b65df6efb..217c82ee3665 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -3465,7 +3465,7 @@ eval_num_arg(void *data, int size, struct event_format *event, struct print_arg
 		 * is in the bottom half of the 32 bit field.
 		 */
 		offset &= 0xffff;
-		val = (unsigned long long)(data + offset);
+		val = (unsigned long long)((unsigned long)data + offset);
 		break;
 	default: /* not sure what to do there */
 		return 0;
-- 
cgit 


From 840e93f2eee6ff0553cc2739ebc2395167a729f3 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 19 Nov 2013 10:35:40 +0100
Subject: netlink: fix documentation typo in netlink_set_err()

The parameter is just 'group', not 'groups', fix the documentation typo.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/netlink/af_netlink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index 8df7f64c6db3..f0176e1a5a81 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -2017,7 +2017,7 @@ out:
  * netlink_set_err - report error to broadcast listeners
  * @ssk: the kernel netlink socket, as returned by netlink_kernel_create()
  * @portid: the PORTID of a process that we want to skip (if any)
- * @groups: the broadcast group that will notice the error
+ * @group: the broadcast group that will notice the error
  * @code: error code, must be negative (as usual in kernelspace)
  *
  * This function returns the number of broadcast listeners that have set the
-- 
cgit 


From 296e5809ee567e41d55da41a882abef9d8071e5e Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Tue, 19 Nov 2013 16:15:35 +0200
Subject: PCI / hotplug / ACPI: Drop unused acpiphp_debug declaration

Commit bd950799d951 (PCI: acpiphp: Convert to dynamic debug) removed users
of acpiphp_debug variable and the variable itself but the declaration was
left in the header file. Drop this unused declaration.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/pci/hotplug/acpiphp.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h
index f4e028924667..777e4d8a8f98 100644
--- a/drivers/pci/hotplug/acpiphp.h
+++ b/drivers/pci/hotplug/acpiphp.h
@@ -186,7 +186,6 @@ u8 acpiphp_get_latch_status(struct acpiphp_slot *slot);
 u8 acpiphp_get_adapter_status(struct acpiphp_slot *slot);
 
 /* variables */
-extern bool acpiphp_debug;
 extern bool acpiphp_disabled;
 
 #endif /* _ACPIPHP_H */
-- 
cgit 


From 236c9f84868534c718b6889aa624de64763281f9 Mon Sep 17 00:00:00 2001
From: "fan.du" <fan.du@windriver.com>
Date: Tue, 19 Nov 2013 16:53:28 +0800
Subject: xfrm: Release dst if this dst is improper for vti tunnel

After searching rt by the vti tunnel dst/src parameter,
if this rt has neither attached to any transformation
nor the transformation is not tunnel oriented, this rt
should be released back to ip layer.

otherwise causing dst memory leakage.

Signed-off-by: Fan Du <fan.du@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/ip_vti.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/ipv4/ip_vti.c b/net/ipv4/ip_vti.c
index 5d9c845d288a..52b802a0cd8c 100644
--- a/net/ipv4/ip_vti.c
+++ b/net/ipv4/ip_vti.c
@@ -126,6 +126,7 @@ static netdev_tx_t vti_tunnel_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (!rt->dst.xfrm ||
 	    rt->dst.xfrm->props.mode != XFRM_MODE_TUNNEL) {
 		dev->stats.tx_carrier_errors++;
+		ip_rt_put(rt);
 		goto tx_error_icmp;
 	}
 	tdev = rt->dst.dev;
-- 
cgit 


From b5de4a22f157ca345cdb3575207bf46402414bc1 Mon Sep 17 00:00:00 2001
From: Ying Xue <ying.xue@windriver.com>
Date: Tue, 19 Nov 2013 18:09:27 +0800
Subject: atm: idt77252: fix dev refcnt leak

init_card() calls dev_get_by_name() to get a network deceive. But it
doesn't decrease network device reference count after the device is
used.

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/atm/idt77252.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/atm/idt77252.c b/drivers/atm/idt77252.c
index 272f00927761..1bdf104e90bb 100644
--- a/drivers/atm/idt77252.c
+++ b/drivers/atm/idt77252.c
@@ -3511,7 +3511,7 @@ static int init_card(struct atm_dev *dev)
 	tmp = dev_get_by_name(&init_net, tname);	/* jhs: was "tmp = dev_get(tname);" */
 	if (tmp) {
 		memcpy(card->atmdev->esi, tmp->dev_addr, 6);
-
+		dev_put(tmp);
 		printk("%s: ESI %pM\n", card->name, card->atmdev->esi);
 	}
 	/*
-- 
cgit 


From 7272c9d2286525d4c6bce788243cf2b6f306d15c Mon Sep 17 00:00:00 2001
From: Samuel Li <samuel.li@amd.com>
Date: Tue, 19 Nov 2013 15:04:45 -0500
Subject: drm/radeon: hook up backlight functions for CI and KV family.

Fixes crashes when handling atif events due to the lack of a
callback being registered.

Signed-off-by: Samuel Li <samuel.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
---
 drivers/gpu/drm/radeon/radeon_asic.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index 50853c0cb49d..e354ce94cdd1 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -2015,6 +2015,8 @@ static struct radeon_asic ci_asic = {
 		.bandwidth_update = &dce8_bandwidth_update,
 		.get_vblank_counter = &evergreen_get_vblank_counter,
 		.wait_for_vblank = &dce4_wait_for_vblank,
+		.set_backlight_level = &atombios_set_backlight_level,
+		.get_backlight_level = &atombios_get_backlight_level,
 		.hdmi_enable = &evergreen_hdmi_enable,
 		.hdmi_setmode = &evergreen_hdmi_setmode,
 	},
@@ -2114,6 +2116,8 @@ static struct radeon_asic kv_asic = {
 		.bandwidth_update = &dce8_bandwidth_update,
 		.get_vblank_counter = &evergreen_get_vblank_counter,
 		.wait_for_vblank = &dce4_wait_for_vblank,
+		.set_backlight_level = &atombios_set_backlight_level,
+		.get_backlight_level = &atombios_get_backlight_level,
 		.hdmi_enable = &evergreen_hdmi_enable,
 		.hdmi_setmode = &evergreen_hdmi_setmode,
 	},
-- 
cgit 


From dbde497966804e63a38fdedc1e3815e77097efc2 Mon Sep 17 00:00:00 2001
From: Andrey Vagin <avagin@openvz.org>
Date: Tue, 19 Nov 2013 22:10:06 +0400
Subject: tcp: don't update snd_nxt, when a socket is switched from repair mode

snd_nxt must be updated synchronously with sk_send_head.  Otherwise
tp->packets_out may be updated incorrectly, what may bring a kernel panic.

Here is a kernel panic from my host.
[  103.043194] BUG: unable to handle kernel NULL pointer dereference at 0000000000000048
[  103.044025] IP: [<ffffffff815aaaaf>] tcp_rearm_rto+0xcf/0x150
...
[  146.301158] Call Trace:
[  146.301158]  [<ffffffff815ab7f0>] tcp_ack+0xcc0/0x12c0

Before this panic a tcp socket was restored. This socket had sent and
unsent data in the write queue. Sent data was restored in repair mode,
then the socket was switched from reapair mode and unsent data was
restored. After that the socket was switched back into repair mode.

In that moment we had a socket where write queue looks like this:
snd_una    snd_nxt   write_seq
   |_________|________|
             |
	  sk_send_head

After a second switching from repair mode the state of socket was
changed:

snd_una          snd_nxt, write_seq
   |_________ ________|
             |
	  sk_send_head

This state is inconsistent, because snd_nxt and sk_send_head are not
synchronized.

Bellow you can find a call trace, how packets_out can be incremented
twice for one skb, if snd_nxt and sk_send_head are not synchronized.
In this case packets_out will be always positive, even when
sk_write_queue is empty.

tcp_write_wakeup
	skb = tcp_send_head(sk);
	tcp_fragment
		if (!before(tp->snd_nxt, TCP_SKB_CB(buff)->end_seq))
			tcp_adjust_pcount(sk, skb, diff);
	tcp_event_new_data_sent
		tp->packets_out += tcp_skb_pcount(skb);

I think update of snd_nxt isn't required, when a socket is switched from
repair mode.  Because it's initialized in tcp_connect_init. Then when a
write queue is restored, snd_nxt is incremented in tcp_event_new_data_sent,
so it's always is in consistent state.

I have checked, that the bug is not reproduced with this patch and
all tests about restoring tcp connections work fine.

Cc: Pavel Emelyanov <xemul@parallels.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>
Cc: James Morris <jmorris@namei.org>
Cc: Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>
Cc: Patrick McHardy <kaber@trash.net>
Signed-off-by: Andrey Vagin <avagin@openvz.org>
Acked-by: Pavel Emelyanov <xemul@parallels.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/tcp_output.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index c5231d9b06d7..7820f3a7dd70 100644
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -3097,7 +3097,6 @@ void tcp_send_window_probe(struct sock *sk)
 {
 	if (sk->sk_state == TCP_ESTABLISHED) {
 		tcp_sk(sk)->snd_wl1 = tcp_sk(sk)->rcv_nxt - 1;
-		tcp_sk(sk)->snd_nxt = tcp_sk(sk)->write_seq;
 		tcp_xmit_probe_skb(sk, 0);
 	}
 }
-- 
cgit 


From 694e096fd7c2a7d40760fc9c9dfc826bdd495ea4 Mon Sep 17 00:00:00 2001
From: Anna Schumaker <bjschuma@netapp.com>
Date: Wed, 13 Nov 2013 12:29:08 -0500
Subject: NFS: Enabling v4.2 should not recompile nfsd and lockd

When CONFIG_NFS_V4_2 is toggled nfsd and lockd will be recompiled,
instead of only the nfs client.  This patch moves a small amount of code
into the client directory to avoid unnecessary recompiles.

Signed-off-by: Anna Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/blocklayout/blocklayout.h |  1 +
 fs/nfs/dns_resolve.c             |  2 ++
 fs/nfs/internal.h                | 15 +++++++++++++++
 fs/nfs/nfs4_fs.h                 |  8 ++++++++
 include/linux/nfs4.h             | 10 ----------
 include/linux/nfs_fs.h           | 18 ------------------
 6 files changed, 26 insertions(+), 28 deletions(-)

diff --git a/fs/nfs/blocklayout/blocklayout.h b/fs/nfs/blocklayout/blocklayout.h
index 8485978993e8..9838fb020473 100644
--- a/fs/nfs/blocklayout/blocklayout.h
+++ b/fs/nfs/blocklayout/blocklayout.h
@@ -36,6 +36,7 @@
 #include <linux/nfs_fs.h>
 #include <linux/sunrpc/rpc_pipe_fs.h>
 
+#include "../nfs4_fs.h"
 #include "../pnfs.h"
 #include "../netns.h"
 
diff --git a/fs/nfs/dns_resolve.c b/fs/nfs/dns_resolve.c
index fc0f95ec7358..d25f10fb4926 100644
--- a/fs/nfs/dns_resolve.c
+++ b/fs/nfs/dns_resolve.c
@@ -46,7 +46,9 @@ ssize_t nfs_dns_resolve_name(struct net *net, char *name, size_t namelen,
 #include <linux/sunrpc/cache.h>
 #include <linux/sunrpc/svcauth.h>
 #include <linux/sunrpc/rpc_pipe_fs.h>
+#include <linux/nfs_fs.h>
 
+#include "nfs4_fs.h"
 #include "dns_resolve.h"
 #include "cache_lib.h"
 #include "netns.h"
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index bca6a3e3c49c..8b5cc04a8611 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -269,6 +269,21 @@ extern const u32 nfs41_maxgetdevinfo_overhead;
 extern struct rpc_procinfo nfs4_procedures[];
 #endif
 
+#ifdef CONFIG_NFS_V4_SECURITY_LABEL
+extern struct nfs4_label *nfs4_label_alloc(struct nfs_server *server, gfp_t flags);
+static inline void nfs4_label_free(struct nfs4_label *label)
+{
+	if (label) {
+		kfree(label->label);
+		kfree(label);
+	}
+	return;
+}
+#else
+static inline struct nfs4_label *nfs4_label_alloc(struct nfs_server *server, gfp_t flags) { return NULL; }
+static inline void nfs4_label_free(void *label) {}
+#endif /* CONFIG_NFS_V4_SECURITY_LABEL */
+
 /* proc.c */
 void nfs_close_context(struct nfs_open_context *ctx, int is_sync);
 extern struct nfs_client *nfs_init_client(struct nfs_client *clp,
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 3ce79b04522e..5609edc742a0 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -9,6 +9,14 @@
 #ifndef __LINUX_FS_NFS_NFS4_FS_H
 #define __LINUX_FS_NFS_NFS4_FS_H
 
+#if defined(CONFIG_NFS_V4_2)
+#define NFS4_MAX_MINOR_VERSION 2
+#elif defined(CONFIG_NFS_V4_1)
+#define NFS4_MAX_MINOR_VERSION 1
+#else
+#define NFS4_MAX_MINOR_VERSION 0
+#endif
+
 #if IS_ENABLED(CONFIG_NFS_V4)
 
 #define NFS4_MAX_LOOP_ON_RECOVER (10)
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index c6f41b616965..ddd84871c0ad 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -410,16 +410,6 @@ enum lock_type4 {
 #define NFS4_VERSION 4
 #define NFS4_MINOR_VERSION 0
 
-#if defined(CONFIG_NFS_V4_2)
-#define NFS4_MAX_MINOR_VERSION 2
-#else
-#if defined(CONFIG_NFS_V4_1)
-#define NFS4_MAX_MINOR_VERSION 1
-#else
-#define NFS4_MAX_MINOR_VERSION 0
-#endif /* CONFIG_NFS_V4_1 */
-#endif /* CONFIG_NFS_V4_2 */
-
 #define NFS4_DEBUG 1
 
 /* Index of predefined Linux client operations */
diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index 14a48207a304..48997374eaf0 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -506,24 +506,6 @@ extern const struct inode_operations nfs_referral_inode_operations;
 extern int nfs_mountpoint_expiry_timeout;
 extern void nfs_release_automount_timer(void);
 
-/*
- * linux/fs/nfs/nfs4proc.c
- */
-#ifdef CONFIG_NFS_V4_SECURITY_LABEL
-extern struct nfs4_label *nfs4_label_alloc(struct nfs_server *server, gfp_t flags);
-static inline void nfs4_label_free(struct nfs4_label *label)
-{
-	if (label) {
-		kfree(label->label);
-		kfree(label);
-	}
-	return;
-}
-#else
-static inline struct nfs4_label *nfs4_label_alloc(struct nfs_server *server, gfp_t flags) { return NULL; }
-static inline void nfs4_label_free(void *label) {}
-#endif
-
 /*
  * linux/fs/nfs/unlink.c
  */
-- 
cgit 


From 829e57d7c590832caad04355b044667902194f6a Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Mon, 18 Nov 2013 14:33:50 -0500
Subject: NFS: Fix a warning in nfs_setsecurity
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Fix the following warning:

linux-nfs/fs/nfs/inode.c:315:1: warning: ‘inline’ is not at
beginning of declaration [-Wold-style-declaration]

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/inode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 18ab2da4eeb6..00ad1c2b217d 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -312,7 +312,7 @@ struct nfs4_label *nfs4_label_alloc(struct nfs_server *server, gfp_t flags)
 }
 EXPORT_SYMBOL_GPL(nfs4_label_alloc);
 #else
-void inline nfs_setsecurity(struct inode *inode, struct nfs_fattr *fattr,
+void nfs_setsecurity(struct inode *inode, struct nfs_fattr *fattr,
 					struct nfs4_label *label)
 {
 }
-- 
cgit 


From c53ed7423619b4e8108914a9f31b426dd58ad591 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 19 Nov 2013 15:19:31 +0100
Subject: genetlink: only pass array to genl_register_family_with_ops()

As suggested by David Miller, make genl_register_family_with_ops()
a macro and pass only the array, evaluating ARRAY_SIZE() in the
macro, this is a little safer.

The openvswitch has some indirection, assing ops/n_ops directly in
that code. This might ultimately just assign the pointers in the
family initializations, saving the struct genl_family_and_ops and
code (once mcast groups are handled differently.)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/team/team.c               |  3 +--
 drivers/net/wireless/mac80211_hwsim.c |  3 +--
 fs/dlm/netlink.c                      | 10 ++++++----
 include/linux/genl_magic_func.h       |  3 +--
 include/net/genetlink.h               |  8 ++++++--
 kernel/taskstats.c                    |  3 +--
 net/core/drop_monitor.c               |  3 +--
 net/hsr/hsr_netlink.c                 |  3 +--
 net/ieee802154/netlink.c              |  3 +--
 net/ipv4/tcp_metrics.c                |  3 +--
 net/irda/irnetlink.c                  |  3 +--
 net/l2tp/l2tp_netlink.c               |  7 +------
 net/netfilter/ipvs/ip_vs_ctl.c        |  2 +-
 net/netlabel/netlabel_cipso_v4.c      |  2 +-
 net/netlabel/netlabel_mgmt.c          |  2 +-
 net/netlabel/netlabel_unlabeled.c     |  2 +-
 net/netlink/genetlink.c               | 14 ++++++++------
 net/nfc/netlink.c                     |  3 +--
 net/openvswitch/datapath.c            |  5 +++--
 net/tipc/netlink.c                    | 11 ++++++-----
 net/wimax/stack.c                     |  4 ++--
 net/wireless/nl80211.c                |  3 +--
 22 files changed, 47 insertions(+), 53 deletions(-)

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 6390254beb7d..f55758b0840e 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -2699,8 +2699,7 @@ static int team_nl_init(void)
 {
 	int err;
 
-	err = genl_register_family_with_ops(&team_nl_family, team_nl_ops,
-					    ARRAY_SIZE(team_nl_ops));
+	err = genl_register_family_with_ops(&team_nl_family, team_nl_ops);
 	if (err)
 		return err;
 
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index cfc3fda79a2d..9df7bc91a26f 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -2148,8 +2148,7 @@ static int hwsim_init_netlink(void)
 
 	printk(KERN_INFO "mac80211_hwsim: initializing netlink\n");
 
-	rc = genl_register_family_with_ops(&hwsim_genl_family,
-		hwsim_ops, ARRAY_SIZE(hwsim_ops));
+	rc = genl_register_family_with_ops(&hwsim_genl_family, hwsim_ops);
 	if (rc)
 		goto failure;
 
diff --git a/fs/dlm/netlink.c b/fs/dlm/netlink.c
index 60a327863b11..e7cfbaf8d0e2 100644
--- a/fs/dlm/netlink.c
+++ b/fs/dlm/netlink.c
@@ -74,14 +74,16 @@ static int user_cmd(struct sk_buff *skb, struct genl_info *info)
 	return 0;
 }
 
-static struct genl_ops dlm_nl_ops = {
-	.cmd		= DLM_CMD_HELLO,
-	.doit		= user_cmd,
+static struct genl_ops dlm_nl_ops[] = {
+	{
+		.cmd	= DLM_CMD_HELLO,
+		.doit	= user_cmd,
+	},
 };
 
 int __init dlm_netlink_init(void)
 {
-	return genl_register_family_with_ops(&family, &dlm_nl_ops, 1);
+	return genl_register_family_with_ops(&family, dlm_nl_ops);
 }
 
 void dlm_netlink_exit(void)
diff --git a/include/linux/genl_magic_func.h b/include/linux/genl_magic_func.h
index 023bc346b877..47086030ab31 100644
--- a/include/linux/genl_magic_func.h
+++ b/include/linux/genl_magic_func.h
@@ -293,8 +293,7 @@ static int CONCAT_(GENL_MAGIC_FAMILY, _genl_multicast_ ## group)(	\
 
 int CONCAT_(GENL_MAGIC_FAMILY, _genl_register)(void)
 {
-	int err = genl_register_family_with_ops(&ZZZ_genl_family,
-		ZZZ_genl_ops, ARRAY_SIZE(ZZZ_genl_ops));
+	int err = genl_register_family_with_ops(&ZZZ_genl_family, ZZZ_genl_ops);
 	if (err)
 		return err;
 #undef GENL_mc_group
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index e96385d46b48..9bd52a4c5e17 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -152,8 +152,9 @@ static inline int genl_register_family(struct genl_family *family)
  *
  * Return 0 on success or a negative error code.
  */
-static inline int genl_register_family_with_ops(struct genl_family *family,
-	const struct genl_ops *ops, size_t n_ops)
+static inline int _genl_register_family_with_ops(struct genl_family *family,
+						 const struct genl_ops *ops,
+						 size_t n_ops)
 {
 	family->module = THIS_MODULE;
 	family->ops = ops;
@@ -161,6 +162,9 @@ static inline int genl_register_family_with_ops(struct genl_family *family,
 	return __genl_register_family(family);
 }
 
+#define genl_register_family_with_ops(family, ops)	\
+	_genl_register_family_with_ops((family), (ops), ARRAY_SIZE(ops))
+
 int genl_unregister_family(struct genl_family *family);
 int genl_register_mc_group(struct genl_family *family,
 			   struct genl_multicast_group *grp);
diff --git a/kernel/taskstats.c b/kernel/taskstats.c
index 76595cd9d211..13d2f7cd65db 100644
--- a/kernel/taskstats.c
+++ b/kernel/taskstats.c
@@ -703,8 +703,7 @@ static int __init taskstats_init(void)
 {
 	int rc;
 
-	rc = genl_register_family_with_ops(&family, taskstats_ops,
-					   ARRAY_SIZE(taskstats_ops));
+	rc = genl_register_family_with_ops(&family, taskstats_ops);
 	if (rc)
 		return rc;
 
diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index f9fe2f22d20b..0efc5028ba9d 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -365,8 +365,7 @@ static int __init init_net_drop_monitor(void)
 	}
 
 	rc = genl_register_family_with_ops(&net_drop_monitor_family,
-					   dropmon_ops,
-					   ARRAY_SIZE(dropmon_ops));
+					   dropmon_ops);
 	if (rc) {
 		pr_err("Could not create drop monitor netlink family\n");
 		return rc;
diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c
index 3b9205d2afc4..f182260be76d 100644
--- a/net/hsr/hsr_netlink.c
+++ b/net/hsr/hsr_netlink.c
@@ -414,8 +414,7 @@ int __init hsr_netlink_init(void)
 	if (rc)
 		goto fail_rtnl_link_register;
 
-	rc = genl_register_family_with_ops(&hsr_genl_family, hsr_ops,
-					   ARRAY_SIZE(hsr_ops));
+	rc = genl_register_family_with_ops(&hsr_genl_family, hsr_ops);
 	if (rc)
 		goto fail_genl_register_family;
 
diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c
index 3ffcdbb56aab..1a81709a4717 100644
--- a/net/ieee802154/netlink.c
+++ b/net/ieee802154/netlink.c
@@ -129,8 +129,7 @@ int __init ieee802154_nl_init(void)
 {
 	int rc;
 
-	rc = genl_register_family_with_ops(&nl802154_family, ieee8021154_ops,
-					   ARRAY_SIZE(ieee8021154_ops));
+	rc = genl_register_family_with_ops(&nl802154_family, ieee8021154_ops);
 	if (rc)
 		return rc;
 
diff --git a/net/ipv4/tcp_metrics.c b/net/ipv4/tcp_metrics.c
index 8c121b523eee..06493736fbc8 100644
--- a/net/ipv4/tcp_metrics.c
+++ b/net/ipv4/tcp_metrics.c
@@ -1082,8 +1082,7 @@ void __init tcp_metrics_init(void)
 	if (ret < 0)
 		goto cleanup;
 	ret = genl_register_family_with_ops(&tcp_metrics_nl_family,
-					    tcp_metrics_nl_ops,
-					    ARRAY_SIZE(tcp_metrics_nl_ops));
+					    tcp_metrics_nl_ops);
 	if (ret < 0)
 		goto cleanup_subsys;
 	return;
diff --git a/net/irda/irnetlink.c b/net/irda/irnetlink.c
index bf5d7d476dae..a37b81fe0479 100644
--- a/net/irda/irnetlink.c
+++ b/net/irda/irnetlink.c
@@ -149,8 +149,7 @@ static const struct genl_ops irda_nl_ops[] = {
 
 int irda_nl_register(void)
 {
-	return genl_register_family_with_ops(&irda_nl_family,
-		irda_nl_ops, ARRAY_SIZE(irda_nl_ops));
+	return genl_register_family_with_ops(&irda_nl_family, irda_nl_ops);
 }
 
 void irda_nl_unregister(void)
diff --git a/net/l2tp/l2tp_netlink.c b/net/l2tp/l2tp_netlink.c
index 57db66e24f1f..4cfd722e9153 100644
--- a/net/l2tp/l2tp_netlink.c
+++ b/net/l2tp/l2tp_netlink.c
@@ -887,13 +887,8 @@ EXPORT_SYMBOL_GPL(l2tp_nl_unregister_ops);
 
 static int l2tp_nl_init(void)
 {
-	int err;
-
 	pr_info("L2TP netlink interface\n");
-	err = genl_register_family_with_ops(&l2tp_nl_family, l2tp_nl_ops,
-					    ARRAY_SIZE(l2tp_nl_ops));
-
-	return err;
+	return genl_register_family_with_ops(&l2tp_nl_family, l2tp_nl_ops);
 }
 
 static void l2tp_nl_cleanup(void)
diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c
index fc8a04ed8854..393498704691 100644
--- a/net/netfilter/ipvs/ip_vs_ctl.c
+++ b/net/netfilter/ipvs/ip_vs_ctl.c
@@ -3666,7 +3666,7 @@ static const struct genl_ops ip_vs_genl_ops[] __read_mostly = {
 static int __init ip_vs_genl_register(void)
 {
 	return genl_register_family_with_ops(&ip_vs_genl_family,
-		ip_vs_genl_ops, ARRAY_SIZE(ip_vs_genl_ops));
+					     ip_vs_genl_ops);
 }
 
 static void ip_vs_genl_unregister(void)
diff --git a/net/netlabel/netlabel_cipso_v4.c b/net/netlabel/netlabel_cipso_v4.c
index 706691739b99..69345cebe3a3 100644
--- a/net/netlabel/netlabel_cipso_v4.c
+++ b/net/netlabel/netlabel_cipso_v4.c
@@ -783,5 +783,5 @@ static const struct genl_ops netlbl_cipsov4_ops[] = {
 int __init netlbl_cipsov4_genl_init(void)
 {
 	return genl_register_family_with_ops(&netlbl_cipsov4_gnl_family,
-		netlbl_cipsov4_ops, ARRAY_SIZE(netlbl_cipsov4_ops));
+					     netlbl_cipsov4_ops);
 }
diff --git a/net/netlabel/netlabel_mgmt.c b/net/netlabel/netlabel_mgmt.c
index 7de6f660b80a..8ef83ee97c6a 100644
--- a/net/netlabel/netlabel_mgmt.c
+++ b/net/netlabel/netlabel_mgmt.c
@@ -779,5 +779,5 @@ static const struct genl_ops netlbl_mgmt_genl_ops[] = {
 int __init netlbl_mgmt_genl_init(void)
 {
 	return genl_register_family_with_ops(&netlbl_mgmt_gnl_family,
-		netlbl_mgmt_genl_ops, ARRAY_SIZE(netlbl_mgmt_genl_ops));
+					     netlbl_mgmt_genl_ops);
 }
diff --git a/net/netlabel/netlabel_unlabeled.c b/net/netlabel/netlabel_unlabeled.c
index 76ee9252daa7..43817d73ccf9 100644
--- a/net/netlabel/netlabel_unlabeled.c
+++ b/net/netlabel/netlabel_unlabeled.c
@@ -1397,7 +1397,7 @@ static const struct genl_ops netlbl_unlabel_genl_ops[] = {
 int __init netlbl_unlabel_genl_init(void)
 {
 	return genl_register_family_with_ops(&netlbl_unlabel_gnl_family,
-		netlbl_unlabel_genl_ops, ARRAY_SIZE(netlbl_unlabel_genl_ops));
+					     netlbl_unlabel_genl_ops);
 }
 
 /*
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index f54215d7b8f3..c68ce73619b5 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -906,11 +906,13 @@ static int genl_ctrl_event(int event, void *data)
 	return 0;
 }
 
-static struct genl_ops genl_ctrl_ops = {
-	.cmd		= CTRL_CMD_GETFAMILY,
-	.doit		= ctrl_getfamily,
-	.dumpit		= ctrl_dumpfamily,
-	.policy		= ctrl_policy,
+static struct genl_ops genl_ctrl_ops[] = {
+	{
+		.cmd		= CTRL_CMD_GETFAMILY,
+		.doit		= ctrl_getfamily,
+		.dumpit		= ctrl_dumpfamily,
+		.policy		= ctrl_policy,
+	},
 };
 
 static struct genl_multicast_group notify_grp = {
@@ -954,7 +956,7 @@ static int __init genl_init(void)
 	for (i = 0; i < GENL_FAM_TAB_SIZE; i++)
 		INIT_LIST_HEAD(&family_ht[i]);
 
-	err = genl_register_family_with_ops(&genl_ctrl, &genl_ctrl_ops, 1);
+	err = genl_register_family_with_ops(&genl_ctrl, genl_ctrl_ops);
 	if (err < 0)
 		goto problem;
 
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index f5585611c098..fe6760d328a0 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -1536,8 +1536,7 @@ int __init nfc_genl_init(void)
 {
 	int rc;
 
-	rc = genl_register_family_with_ops(&nfc_genl_family, nfc_genl_ops,
-					   ARRAY_SIZE(nfc_genl_ops));
+	rc = genl_register_family_with_ops(&nfc_genl_family, nfc_genl_ops);
 	if (rc)
 		return rc;
 
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 91e1c927a465..8ec8b73033e0 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -1817,8 +1817,9 @@ static int dp_register_genl(void)
 	for (i = 0; i < ARRAY_SIZE(dp_genl_families); i++) {
 		const struct genl_family_and_ops *f = &dp_genl_families[i];
 
-		err = genl_register_family_with_ops(f->family, f->ops,
-						    f->n_ops);
+		f->family->ops = f->ops;
+		f->family->n_ops = f->n_ops;
+		err = genl_register_family(f->family);
 		if (err)
 			goto error;
 		n_registered++;
diff --git a/net/tipc/netlink.c b/net/tipc/netlink.c
index 8bcd4985d0fb..9f72a6376362 100644
--- a/net/tipc/netlink.c
+++ b/net/tipc/netlink.c
@@ -76,9 +76,11 @@ static struct genl_family tipc_genl_family = {
 	.maxattr	= 0,
 };
 
-static struct genl_ops tipc_genl_ops = {
-	.cmd		= TIPC_GENL_CMD,
-	.doit		= handle_cmd,
+static struct genl_ops tipc_genl_ops[] = {
+	{
+		.cmd		= TIPC_GENL_CMD,
+		.doit		= handle_cmd,
+	},
 };
 
 static int tipc_genl_family_registered;
@@ -87,8 +89,7 @@ int tipc_netlink_start(void)
 {
 	int res;
 
-	res = genl_register_family_with_ops(&tipc_genl_family,
-		&tipc_genl_ops, 1);
+	res = genl_register_family_with_ops(&tipc_genl_family, tipc_genl_ops);
 	if (res) {
 		pr_err("Failed to register netlink interface\n");
 		return res;
diff --git a/net/wimax/stack.c b/net/wimax/stack.c
index 47170c9495f1..6328afe90319 100644
--- a/net/wimax/stack.c
+++ b/net/wimax/stack.c
@@ -597,8 +597,8 @@ int __init wimax_subsys_init(void)
 
 	snprintf(wimax_gnl_family.name, sizeof(wimax_gnl_family.name),
 		 "WiMAX");
-	result = genl_register_family_with_ops(&wimax_gnl_family, wimax_gnl_ops,
-					       ARRAY_SIZE(wimax_gnl_ops));
+	result = genl_register_family_with_ops(&wimax_gnl_family,
+					       wimax_gnl_ops);
 	if (unlikely(result < 0)) {
 		printk(KERN_ERR "cannot register generic netlink family: %d\n",
 		       result);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 58c43c8e149f..1b6c5dd4dccf 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -11329,8 +11329,7 @@ int nl80211_init(void)
 {
 	int err;
 
-	err = genl_register_family_with_ops(&nl80211_fam,
-		nl80211_ops, ARRAY_SIZE(nl80211_ops));
+	err = genl_register_family_with_ops(&nl80211_fam, nl80211_ops);
 	if (err)
 		return err;
 
-- 
cgit 


From e5dcecba015f9774a402ba559b80b16999747e3b Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 19 Nov 2013 15:19:32 +0100
Subject: drop_monitor/genetlink: use proper genetlink multicast APIs

The drop monitor code is abusing the genetlink API and is
statically using the generic netlink multicast group 1, even
if that group belongs to somebody else (which it invariably
will, since it's not reserved.)

Make the drop monitor code use the proper APIs to reserve a
group ID, but also reserve the group id 1 in generic netlink
code to preserve the userspace API. Since drop monitor can
be a module, don't clear the bit for it on unregistration.

Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/drop_monitor.c | 13 ++++++++++++-
 net/netlink/genetlink.c | 13 ++++++++++---
 2 files changed, 22 insertions(+), 4 deletions(-)

diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index 0efc5028ba9d..46ee488c0015 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -106,6 +106,10 @@ static struct sk_buff *reset_per_cpu_data(struct per_cpu_dm_data *data)
 	return skb;
 }
 
+static struct genl_multicast_group dm_mcgrp = {
+	.name = "events",
+};
+
 static void send_dm_alert(struct work_struct *work)
 {
 	struct sk_buff *skb;
@@ -116,7 +120,7 @@ static void send_dm_alert(struct work_struct *work)
 	skb = reset_per_cpu_data(data);
 
 	if (skb)
-		genlmsg_multicast(skb, 0, NET_DM_GRP_ALERT, GFP_KERNEL);
+		genlmsg_multicast(skb, 0, dm_mcgrp.id, GFP_KERNEL);
 }
 
 /*
@@ -371,6 +375,13 @@ static int __init init_net_drop_monitor(void)
 		return rc;
 	}
 
+	rc = genl_register_mc_group(&net_drop_monitor_family, &dm_mcgrp);
+	if (rc) {
+		pr_err("Failed to register drop monitor mcast group\n");
+		goto out_unreg;
+	}
+	WARN_ON(dm_mcgrp.id != NET_DM_GRP_ALERT);
+
 	rc = register_netdevice_notifier(&dropmon_net_notifier);
 	if (rc < 0) {
 		pr_crit("Failed to register netdevice notifier\n");
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index c68ce73619b5..353909d46dda 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -65,8 +65,12 @@ static struct list_head family_ht[GENL_FAM_TAB_SIZE];
  * To avoid an allocation at boot of just one unsigned long,
  * declare it global instead.
  * Bit 0 is marked as already used since group 0 is invalid.
+ * Bit 1 is marked as already used since the drop-monitor code
+ * abuses the API and thinks it can statically use group 1.
+ * That group will typically conflict with other groups that
+ * any proper users use.
  */
-static unsigned long mc_group_start = 0x1;
+static unsigned long mc_group_start = 0x3;
 static unsigned long *mc_groups = &mc_group_start;
 static unsigned long mc_groups_longs = 1;
 
@@ -160,9 +164,11 @@ int genl_register_mc_group(struct genl_family *family,
 
 	genl_lock_all();
 
-	/* special-case our own group */
+	/* special-case our own group and hacks */
 	if (grp == &notify_grp)
 		id = GENL_ID_CTRL;
+	else if (strcmp(family->name, "NET_DM") == 0)
+		id = 1;
 	else
 		id = find_first_zero_bit(mc_groups,
 					 mc_groups_longs * BITS_PER_LONG);
@@ -245,7 +251,8 @@ static void __genl_unregister_mc_group(struct genl_family *family,
 	rcu_read_unlock();
 	netlink_table_ungrab();
 
-	clear_bit(grp->id, mc_groups);
+	if (grp->id != 1)
+		clear_bit(grp->id, mc_groups);
 	list_del(&grp->list);
 	genl_ctrl_event(CTRL_CMD_DELMCAST_GRP, grp);
 	grp->id = 0;
-- 
cgit 


From 2ecf7536b2787580616d23b6507005d930975ca0 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 19 Nov 2013 15:19:33 +0100
Subject: quota/genetlink: use proper genetlink multicast APIs

The quota code is abusing the genetlink API and is using
its family ID as the multicast group ID, which is invalid
and may belong to somebody else (and likely will.)

Make the quota code use the correct API, but since this
is already used as-is by userspace, reserve a family ID
for this code and also reserve that group ID to not break
userspace assumptions.

Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 fs/quota/netlink.c             | 17 +++++++++++++++--
 include/uapi/linux/genetlink.h |  1 +
 net/netlink/genetlink.c        | 10 ++++++++--
 3 files changed, 24 insertions(+), 4 deletions(-)

diff --git a/fs/quota/netlink.c b/fs/quota/netlink.c
index 16e8abb7709b..aa22fe03b76c 100644
--- a/fs/quota/netlink.c
+++ b/fs/quota/netlink.c
@@ -11,13 +11,23 @@
 
 /* Netlink family structure for quota */
 static struct genl_family quota_genl_family = {
-	.id = GENL_ID_GENERATE,
+	/*
+	 * Needed due to multicast group ID abuse - old code assumed
+	 * the family ID was also a valid multicast group ID (which
+	 * isn't true) and userspace might thus rely on it. Assign a
+	 * static ID for this group to make dealing with that easier.
+	 */
+	.id = GENL_ID_VFS_DQUOT,
 	.hdrsize = 0,
 	.name = "VFS_DQUOT",
 	.version = 1,
 	.maxattr = QUOTA_NL_A_MAX,
 };
 
+static struct genl_multicast_group quota_mcgrp = {
+	.name = "events",
+};
+
 /**
  * quota_send_warning - Send warning to userspace about exceeded quota
  * @type: The quota type: USRQQUOTA, GRPQUOTA,...
@@ -78,7 +88,7 @@ void quota_send_warning(struct kqid qid, dev_t dev,
 		goto attr_err_out;
 	genlmsg_end(skb, msg_head);
 
-	genlmsg_multicast(skb, 0, quota_genl_family.id, GFP_NOFS);
+	genlmsg_multicast(skb, 0, quota_mcgrp.id, GFP_NOFS);
 	return;
 attr_err_out:
 	printk(KERN_ERR "VFS: Not enough space to compose quota message!\n");
@@ -92,6 +102,9 @@ static int __init quota_init(void)
 	if (genl_register_family(&quota_genl_family) != 0)
 		printk(KERN_ERR
 		       "VFS: Failed to create quota netlink interface.\n");
+	if (genl_register_mc_group(&quota_genl_family, &quota_mcgrp))
+		printk(KERN_ERR
+		       "VFS: Failed to register quota mcast group.\n");
 	return 0;
 };
 
diff --git a/include/uapi/linux/genetlink.h b/include/uapi/linux/genetlink.h
index c880a417d8a9..1af72d8228e0 100644
--- a/include/uapi/linux/genetlink.h
+++ b/include/uapi/linux/genetlink.h
@@ -27,6 +27,7 @@ struct genlmsghdr {
  */
 #define GENL_ID_GENERATE	0
 #define GENL_ID_CTRL		NLMSG_MIN_TYPE
+#define GENL_ID_VFS_DQUOT	(NLMSG_MIN_TYPE + 1)
 
 /**************************************************************************
  * Controller
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 353909d46dda..bee91a7527a5 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -69,8 +69,11 @@ static struct list_head family_ht[GENL_FAM_TAB_SIZE];
  * abuses the API and thinks it can statically use group 1.
  * That group will typically conflict with other groups that
  * any proper users use.
+ * Bit 17 is marked as already used since the VFS quota code
+ * also abused this API and relied on family == group ID, we
+ * cater to that by giving it a static family and group ID.
  */
-static unsigned long mc_group_start = 0x3;
+static unsigned long mc_group_start = 0x3 | BIT(GENL_ID_VFS_DQUOT);
 static unsigned long *mc_groups = &mc_group_start;
 static unsigned long mc_groups_longs = 1;
 
@@ -130,7 +133,8 @@ static u16 genl_generate_id(void)
 	int i;
 
 	for (i = 0; i <= GENL_MAX_ID - GENL_MIN_ID; i++) {
-		if (!genl_family_find_byid(id_gen_idx))
+		if (id_gen_idx != GENL_ID_VFS_DQUOT &&
+		    !genl_family_find_byid(id_gen_idx))
 			return id_gen_idx;
 		if (++id_gen_idx > GENL_MAX_ID)
 			id_gen_idx = GENL_MIN_ID;
@@ -169,6 +173,8 @@ int genl_register_mc_group(struct genl_family *family,
 		id = GENL_ID_CTRL;
 	else if (strcmp(family->name, "NET_DM") == 0)
 		id = 1;
+	else if (strcmp(family->name, "VFS_DQUOT") == 0)
+		id = GENL_ID_VFS_DQUOT;
 	else
 		id = find_first_zero_bit(mc_groups,
 					 mc_groups_longs * BITS_PER_LONG);
-- 
cgit 


From 03ed3827463ffb7210c5ef6a1a6f64c776f9daec Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 19 Nov 2013 15:19:34 +0100
Subject: hsr: don't call genl_unregister_mc_group()

There's no need to unregister the multicast group if the
generic netlink family is registered immediately after.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/hsr/hsr_netlink.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c
index f182260be76d..908e335dcdc9 100644
--- a/net/hsr/hsr_netlink.c
+++ b/net/hsr/hsr_netlink.c
@@ -435,9 +435,7 @@ fail_rtnl_link_register:
 
 void __exit hsr_netlink_exit(void)
 {
-	genl_unregister_mc_group(&hsr_genl_family, &hsr_network_genl_mcgrp);
 	genl_unregister_family(&hsr_genl_family);
-
 	rtnl_link_unregister(&hsr_link_ops);
 }
 
-- 
cgit 


From 06fb555a273dc8ef0d876f4e864ad11cfcea63e0 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 19 Nov 2013 15:19:35 +0100
Subject: genetlink: remove genl_unregister_mc_group()

There are no users of this API remaining, and we'll soon
change group registration to be static (like ops are now)

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/genetlink.h |  2 --
 net/netlink/genetlink.c | 23 -----------------------
 2 files changed, 25 deletions(-)

diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 9bd52a4c5e17..067569d1bc99 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -168,8 +168,6 @@ static inline int _genl_register_family_with_ops(struct genl_family *family,
 int genl_unregister_family(struct genl_family *family);
 int genl_register_mc_group(struct genl_family *family,
 			   struct genl_multicast_group *grp);
-void genl_unregister_mc_group(struct genl_family *family,
-			      struct genl_multicast_group *grp);
 void genl_notify(struct sk_buff *skb, struct net *net, u32 portid,
 		 u32 group, struct nlmsghdr *nlh, gfp_t flags);
 
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index bee91a7527a5..6efb0e9036b5 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -265,29 +265,6 @@ static void __genl_unregister_mc_group(struct genl_family *family,
 	grp->family = NULL;
 }
 
-/**
- * genl_unregister_mc_group - unregister a multicast group
- *
- * Unregisters the specified multicast group and notifies userspace
- * about it. All current listeners on the group are removed.
- *
- * Note: It is not necessary to unregister all multicast groups before
- *       unregistering the family, unregistering the family will cause
- *       all assigned multicast groups to be unregistered automatically.
- *
- * @family: Generic netlink family the group belongs to.
- * @grp: The group to unregister, must have been registered successfully
- *	 previously.
- */
-void genl_unregister_mc_group(struct genl_family *family,
-			      struct genl_multicast_group *grp)
-{
-	genl_lock_all();
-	__genl_unregister_mc_group(family, grp);
-	genl_unlock_all();
-}
-EXPORT_SYMBOL(genl_unregister_mc_group);
-
 static void genl_unregister_mc_groups(struct genl_family *family)
 {
 	struct genl_multicast_group *grp, *tmp;
-- 
cgit 


From c2ebb908469d507ff400dad94efc755e6c799672 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 19 Nov 2013 15:19:36 +0100
Subject: genetlink: remove family pointer from genl_multicast_group

There's no reason to have the family pointer there since it
can just be passed internally where needed, so remove it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/genetlink.h |  2 --
 net/netlink/genetlink.c | 38 ++++++++++++++++++--------------------
 2 files changed, 18 insertions(+), 22 deletions(-)

diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 067569d1bc99..d8a8b1fd96c4 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -13,10 +13,8 @@
  * @id: multicast group ID, assigned by the core, to use with
  *      genlmsg_multicast().
  * @list: list entry for linking
- * @family: pointer to family, need not be set before registering
  */
 struct genl_multicast_group {
-	struct genl_family	*family;	/* private */
 	struct list_head	list;		/* private */
 	char			name[GENL_NAMSIZ];
 	u32			id;
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 6efb0e9036b5..e9ef640200b4 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -77,7 +77,8 @@ static unsigned long mc_group_start = 0x3 | BIT(GENL_ID_VFS_DQUOT);
 static unsigned long *mc_groups = &mc_group_start;
 static unsigned long mc_groups_longs = 1;
 
-static int genl_ctrl_event(int event, void *data);
+static int genl_ctrl_event(int event, struct genl_family *family,
+			   struct genl_multicast_group *grp);
 
 static inline unsigned int genl_family_hash(unsigned int id)
 {
@@ -235,9 +236,8 @@ int genl_register_mc_group(struct genl_family *family,
 	grp->id = id;
 	set_bit(id, mc_groups);
 	list_add_tail(&grp->list, &family->mcast_groups);
-	grp->family = family;
 
-	genl_ctrl_event(CTRL_CMD_NEWMCAST_GRP, grp);
+	genl_ctrl_event(CTRL_CMD_NEWMCAST_GRP, family, grp);
  out:
 	genl_unlock_all();
 	return err;
@@ -248,7 +248,6 @@ static void __genl_unregister_mc_group(struct genl_family *family,
 				       struct genl_multicast_group *grp)
 {
 	struct net *net;
-	BUG_ON(grp->family != family);
 
 	netlink_table_grab();
 	rcu_read_lock();
@@ -260,9 +259,8 @@ static void __genl_unregister_mc_group(struct genl_family *family,
 	if (grp->id != 1)
 		clear_bit(grp->id, mc_groups);
 	list_del(&grp->list);
-	genl_ctrl_event(CTRL_CMD_DELMCAST_GRP, grp);
+	genl_ctrl_event(CTRL_CMD_DELMCAST_GRP, family, grp);
 	grp->id = 0;
-	grp->family = NULL;
 }
 
 static void genl_unregister_mc_groups(struct genl_family *family)
@@ -364,7 +362,7 @@ int __genl_register_family(struct genl_family *family)
 	list_add_tail(&family->family_list, genl_family_chain(family->id));
 	genl_unlock_all();
 
-	genl_ctrl_event(CTRL_CMD_NEWFAMILY, family);
+	genl_ctrl_event(CTRL_CMD_NEWFAMILY, family, NULL);
 
 	return 0;
 
@@ -400,7 +398,7 @@ int genl_unregister_family(struct genl_family *family)
 		genl_unlock_all();
 
 		kfree(family->attrbuf);
-		genl_ctrl_event(CTRL_CMD_DELFAMILY, family);
+		genl_ctrl_event(CTRL_CMD_DELFAMILY, family, NULL);
 		return 0;
 	}
 
@@ -693,7 +691,8 @@ nla_put_failure:
 	return -EMSGSIZE;
 }
 
-static int ctrl_fill_mcgrp_info(struct genl_multicast_group *grp, u32 portid,
+static int ctrl_fill_mcgrp_info(struct genl_family *family,
+				struct genl_multicast_group *grp, u32 portid,
 				u32 seq, u32 flags, struct sk_buff *skb,
 				u8 cmd)
 {
@@ -705,8 +704,8 @@ static int ctrl_fill_mcgrp_info(struct genl_multicast_group *grp, u32 portid,
 	if (hdr == NULL)
 		return -1;
 
-	if (nla_put_string(skb, CTRL_ATTR_FAMILY_NAME, grp->family->name) ||
-	    nla_put_u16(skb, CTRL_ATTR_FAMILY_ID, grp->family->id))
+	if (nla_put_string(skb, CTRL_ATTR_FAMILY_NAME, family->name) ||
+	    nla_put_u16(skb, CTRL_ATTR_FAMILY_ID, family->id))
 		goto nla_put_failure;
 
 	nla_grps = nla_nest_start(skb, CTRL_ATTR_MCAST_GROUPS);
@@ -783,7 +782,8 @@ static struct sk_buff *ctrl_build_family_msg(struct genl_family *family,
 	return skb;
 }
 
-static struct sk_buff *ctrl_build_mcgrp_msg(struct genl_multicast_group *grp,
+static struct sk_buff *ctrl_build_mcgrp_msg(struct genl_family *family,
+					    struct genl_multicast_group *grp,
 					    u32 portid, int seq, u8 cmd)
 {
 	struct sk_buff *skb;
@@ -793,7 +793,7 @@ static struct sk_buff *ctrl_build_mcgrp_msg(struct genl_multicast_group *grp,
 	if (skb == NULL)
 		return ERR_PTR(-ENOBUFS);
 
-	err = ctrl_fill_mcgrp_info(grp, portid, seq, 0, skb, cmd);
+	err = ctrl_fill_mcgrp_info(family, grp, portid, seq, 0, skb, cmd);
 	if (err < 0) {
 		nlmsg_free(skb);
 		return ERR_PTR(err);
@@ -855,11 +855,10 @@ static int ctrl_getfamily(struct sk_buff *skb, struct genl_info *info)
 	return genlmsg_reply(msg, info);
 }
 
-static int genl_ctrl_event(int event, void *data)
+static int genl_ctrl_event(int event, struct genl_family *family,
+			   struct genl_multicast_group *grp)
 {
 	struct sk_buff *msg;
-	struct genl_family *family;
-	struct genl_multicast_group *grp;
 
 	/* genl is still initialising */
 	if (!init_net.genl_sock)
@@ -868,14 +867,13 @@ static int genl_ctrl_event(int event, void *data)
 	switch (event) {
 	case CTRL_CMD_NEWFAMILY:
 	case CTRL_CMD_DELFAMILY:
-		family = data;
+		WARN_ON(grp);
 		msg = ctrl_build_family_msg(family, 0, 0, event);
 		break;
 	case CTRL_CMD_NEWMCAST_GRP:
 	case CTRL_CMD_DELMCAST_GRP:
-		grp = data;
-		family = grp->family;
-		msg = ctrl_build_mcgrp_msg(data, 0, 0, event);
+		BUG_ON(!grp);
+		msg = ctrl_build_mcgrp_msg(family, grp, 0, 0, event);
 		break;
 	default:
 		return -EINVAL;
-- 
cgit 


From 62b68e99faa802352e9cb2ae91adecd8dfddf1b8 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 19 Nov 2013 15:19:37 +0100
Subject: genetlink: add and use genl_set_err()

Add a static inline to generic netlink to wrap netlink_set_err()
to make it easier to use here - use it in openvswitch (the only
generic netlink user of netlink_set_err()).

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/genetlink.h     | 14 ++++++++++++++
 net/openvswitch/datapath.c  |  8 ++++----
 net/openvswitch/dp_notify.c |  6 +++---
 3 files changed, 21 insertions(+), 7 deletions(-)

diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index d8a8b1fd96c4..11ac77f6180c 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -351,5 +351,19 @@ static inline struct sk_buff *genlmsg_new(size_t payload, gfp_t flags)
 	return nlmsg_new(genlmsg_total_size(payload), flags);
 }
 
+/**
+ * genl_set_err - report error to genetlink broadcast listeners
+ * @net: the network namespace to report the error to
+ * @portid: the PORTID of a process that we want to skip (if any)
+ * @group: the broadcast group that will notice the error
+ * @code: error code, must be negative (as usual in kernelspace)
+ *
+ * This function returns the number of broadcast listeners that have set the
+ * NETLINK_RECV_NO_ENOBUFS socket option.
+ */
+static inline int genl_set_err(struct net *net, u32 portid, u32 group, int code)
+{
+	return netlink_set_err(net->genl_sock, portid, group, code);
+}
 
 #endif	/* __NET_GENERIC_NETLINK_H */
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 8ec8b73033e0..3e2bb15fd717 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -879,8 +879,8 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 	if (!IS_ERR(reply))
 		ovs_notify(reply, info, &ovs_dp_flow_multicast_group);
 	else
-		netlink_set_err(sock_net(skb->sk)->genl_sock, 0,
-				ovs_dp_flow_multicast_group.id, PTR_ERR(reply));
+		genl_set_err(sock_net(skb->sk), 0,
+			     ovs_dp_flow_multicast_group.id, PTR_ERR(reply));
 	return 0;
 
 err_flow_free:
@@ -1326,8 +1326,8 @@ static int ovs_dp_cmd_set(struct sk_buff *skb, struct genl_info *info)
 				      info->snd_seq, OVS_DP_CMD_NEW);
 	if (IS_ERR(reply)) {
 		err = PTR_ERR(reply);
-		netlink_set_err(sock_net(skb->sk)->genl_sock, 0,
-				ovs_dp_datapath_multicast_group.id, err);
+		genl_set_err(sock_net(skb->sk), 0,
+			     ovs_dp_datapath_multicast_group.id, err);
 		err = 0;
 		goto unlock;
 	}
diff --git a/net/openvswitch/dp_notify.c b/net/openvswitch/dp_notify.c
index 5c2dab276109..3d55ead6095c 100644
--- a/net/openvswitch/dp_notify.c
+++ b/net/openvswitch/dp_notify.c
@@ -34,9 +34,9 @@ static void dp_detach_port_notify(struct vport *vport)
 					  OVS_VPORT_CMD_DEL);
 	ovs_dp_detach_port(vport);
 	if (IS_ERR(notify)) {
-		netlink_set_err(ovs_dp_get_net(dp)->genl_sock, 0,
-				ovs_dp_vport_multicast_group.id,
-				PTR_ERR(notify));
+		genl_set_err(ovs_dp_get_net(dp), 0,
+			     ovs_dp_vport_multicast_group.id,
+			     PTR_ERR(notify));
 		return;
 	}
 
-- 
cgit 


From 68eb55031da7c967d954e5f9415cd05f4abdb692 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 19 Nov 2013 15:19:38 +0100
Subject: genetlink: pass family to functions using groups

This doesn't really change anything, but prepares for the
next patch that will change the APIs to pass the group ID
within the family, rather than the global group ID.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/acpi/event.c            |  3 +-
 drivers/net/team/team.c         |  5 +--
 drivers/scsi/pmcraid.c          |  3 +-
 drivers/thermal/thermal_core.c  |  3 +-
 fs/quota/netlink.c              |  2 +-
 include/linux/genl_magic_func.h |  3 +-
 include/net/genetlink.h         | 22 +++++++++----
 net/core/drop_monitor.c         |  3 +-
 net/hsr/hsr_netlink.c           |  6 ++--
 net/ieee802154/netlink.c        |  2 +-
 net/netlink/genetlink.c         | 12 ++++---
 net/nfc/netlink.c               | 39 +++++++++++++++--------
 net/openvswitch/datapath.c      | 35 +++++++++++++--------
 net/openvswitch/datapath.h      |  1 +
 net/openvswitch/dp_notify.c     |  5 +--
 net/wimax/op-msg.c              |  3 +-
 net/wimax/stack.c               |  3 +-
 net/wireless/nl80211.c          | 70 ++++++++++++++++++++---------------------
 18 files changed, 133 insertions(+), 87 deletions(-)

diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c
index 8247fcdde079..68a8755202ec 100644
--- a/drivers/acpi/event.c
+++ b/drivers/acpi/event.c
@@ -146,7 +146,8 @@ int acpi_bus_generate_netlink_event(const char *device_class,
 		return result;
 	}
 
-	genlmsg_multicast(skb, 0, acpi_event_mcgrp.id, GFP_ATOMIC);
+	genlmsg_multicast(&acpi_event_genl_family,
+			  skb, 0, acpi_event_mcgrp.id, GFP_ATOMIC);
 	return 0;
 }
 
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index f55758b0840e..2721e29935a6 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -2677,8 +2677,9 @@ static struct genl_multicast_group team_change_event_mcgrp = {
 static int team_nl_send_multicast(struct sk_buff *skb,
 				  struct team *team, u32 portid)
 {
-	return genlmsg_multicast_netns(dev_net(team->dev), skb, 0,
-				       team_change_event_mcgrp.id, GFP_KERNEL);
+	return genlmsg_multicast_netns(&team_nl_family, dev_net(team->dev),
+				       skb, 0, team_change_event_mcgrp.id,
+				       GFP_KERNEL);
 }
 
 static int team_nl_send_event_options_get(struct team *team,
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index 1eb7b0280a45..2775441111ff 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -1512,7 +1512,8 @@ static int pmcraid_notify_aen(
 	}
 
 	result =
-		genlmsg_multicast(skb, 0, pmcraid_event_family.id, GFP_ATOMIC);
+		genlmsg_multicast(&pmcraid_event_family, skb, 0,
+				  pmcraid_event_family.id, GFP_ATOMIC);
 
 	/* If there are no listeners, genlmsg_multicast may return non-zero
 	 * value.
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 4962a6aaf295..2570a944fffc 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -1675,7 +1675,8 @@ int thermal_generate_netlink_event(struct thermal_zone_device *tz,
 		return result;
 	}
 
-	result = genlmsg_multicast(skb, 0, thermal_event_mcgrp.id, GFP_ATOMIC);
+	result = genlmsg_multicast(&thermal_event_genl_family, skb, 0,
+				   thermal_event_mcgrp.id, GFP_ATOMIC);
 	if (result)
 		dev_err(&tz->device, "Failed to send netlink event:%d", result);
 
diff --git a/fs/quota/netlink.c b/fs/quota/netlink.c
index aa22fe03b76c..a5b5eddf6603 100644
--- a/fs/quota/netlink.c
+++ b/fs/quota/netlink.c
@@ -88,7 +88,7 @@ void quota_send_warning(struct kqid qid, dev_t dev,
 		goto attr_err_out;
 	genlmsg_end(skb, msg_head);
 
-	genlmsg_multicast(skb, 0, quota_mcgrp.id, GFP_NOFS);
+	genlmsg_multicast(&quota_genl_family, skb, 0, quota_mcgrp.id, GFP_NOFS);
 	return;
 attr_err_out:
 	printk(KERN_ERR "VFS: Not enough space to compose quota message!\n");
diff --git a/include/linux/genl_magic_func.h b/include/linux/genl_magic_func.h
index 47086030ab31..5b9b8ae6748b 100644
--- a/include/linux/genl_magic_func.h
+++ b/include/linux/genl_magic_func.h
@@ -286,7 +286,8 @@ static int CONCAT_(GENL_MAGIC_FAMILY, _genl_multicast_ ## group)(	\
 		CONCAT_(GENL_MAGIC_FAMILY, _mcg_ ## group).id;	\
 	if (!group_id)							\
 		return -EINVAL;						\
-	return genlmsg_multicast(skb, 0, group_id, flags);		\
+	return genlmsg_multicast(&ZZZ_genl_family, skb, 0,		\
+				 group_id, flags);			\
 }
 
 #include GENL_MAGIC_INCLUDE_FILE
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 11ac77f6180c..60aef0df386b 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -166,7 +166,8 @@ static inline int _genl_register_family_with_ops(struct genl_family *family,
 int genl_unregister_family(struct genl_family *family);
 int genl_register_mc_group(struct genl_family *family,
 			   struct genl_multicast_group *grp);
-void genl_notify(struct sk_buff *skb, struct net *net, u32 portid,
+void genl_notify(struct genl_family *family,
+		 struct sk_buff *skb, struct net *net, u32 portid,
 		 u32 group, struct nlmsghdr *nlh, gfp_t flags);
 
 void *genlmsg_put(struct sk_buff *skb, u32 portid, u32 seq,
@@ -246,13 +247,15 @@ static inline void genlmsg_cancel(struct sk_buff *skb, void *hdr)
 
 /**
  * genlmsg_multicast_netns - multicast a netlink message to a specific netns
+ * @family: the generic netlink family
  * @net: the net namespace
  * @skb: netlink message as socket buffer
  * @portid: own netlink portid to avoid sending to yourself
  * @group: multicast group id
  * @flags: allocation flags
  */
-static inline int genlmsg_multicast_netns(struct net *net, struct sk_buff *skb,
+static inline int genlmsg_multicast_netns(struct genl_family *family,
+					  struct net *net, struct sk_buff *skb,
 					  u32 portid, unsigned int group, gfp_t flags)
 {
 	return nlmsg_multicast(net->genl_sock, skb, portid, group, flags);
@@ -260,19 +263,23 @@ static inline int genlmsg_multicast_netns(struct net *net, struct sk_buff *skb,
 
 /**
  * genlmsg_multicast - multicast a netlink message to the default netns
+ * @family: the generic netlink family
  * @skb: netlink message as socket buffer
  * @portid: own netlink portid to avoid sending to yourself
  * @group: multicast group id
  * @flags: allocation flags
  */
-static inline int genlmsg_multicast(struct sk_buff *skb, u32 portid,
+static inline int genlmsg_multicast(struct genl_family *family,
+				    struct sk_buff *skb, u32 portid,
 				    unsigned int group, gfp_t flags)
 {
-	return genlmsg_multicast_netns(&init_net, skb, portid, group, flags);
+	return genlmsg_multicast_netns(family, &init_net, skb,
+				       portid, group, flags);
 }
 
 /**
  * genlmsg_multicast_allns - multicast a netlink message to all net namespaces
+ * @family: the generic netlink family
  * @skb: netlink message as socket buffer
  * @portid: own netlink portid to avoid sending to yourself
  * @group: multicast group id
@@ -280,7 +287,8 @@ static inline int genlmsg_multicast(struct sk_buff *skb, u32 portid,
  *
  * This function must hold the RTNL or rcu_read_lock().
  */
-int genlmsg_multicast_allns(struct sk_buff *skb, u32 portid,
+int genlmsg_multicast_allns(struct genl_family *family,
+			    struct sk_buff *skb, u32 portid,
 			    unsigned int group, gfp_t flags);
 
 /**
@@ -353,6 +361,7 @@ static inline struct sk_buff *genlmsg_new(size_t payload, gfp_t flags)
 
 /**
  * genl_set_err - report error to genetlink broadcast listeners
+ * @family: the generic netlink family
  * @net: the network namespace to report the error to
  * @portid: the PORTID of a process that we want to skip (if any)
  * @group: the broadcast group that will notice the error
@@ -361,7 +370,8 @@ static inline struct sk_buff *genlmsg_new(size_t payload, gfp_t flags)
  * This function returns the number of broadcast listeners that have set the
  * NETLINK_RECV_NO_ENOBUFS socket option.
  */
-static inline int genl_set_err(struct net *net, u32 portid, u32 group, int code)
+static inline int genl_set_err(struct genl_family *family, struct net *net,
+			       u32 portid, u32 group, int code)
 {
 	return netlink_set_err(net->genl_sock, portid, group, code);
 }
diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index 46ee488c0015..1eab1dc48821 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -120,7 +120,8 @@ static void send_dm_alert(struct work_struct *work)
 	skb = reset_per_cpu_data(data);
 
 	if (skb)
-		genlmsg_multicast(skb, 0, dm_mcgrp.id, GFP_KERNEL);
+		genlmsg_multicast(&net_drop_monitor_family, skb, 0,
+				  dm_mcgrp.id, GFP_KERNEL);
 }
 
 /*
diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c
index 908e335dcdc9..0009416c08c2 100644
--- a/net/hsr/hsr_netlink.c
+++ b/net/hsr/hsr_netlink.c
@@ -129,7 +129,8 @@ void hsr_nl_ringerror(struct hsr_priv *hsr_priv, unsigned char addr[ETH_ALEN],
 		goto nla_put_failure;
 
 	genlmsg_end(skb, msg_head);
-	genlmsg_multicast(skb, 0, hsr_network_genl_mcgrp.id, GFP_ATOMIC);
+	genlmsg_multicast(&hsr_genl_family, skb, 0,
+			  hsr_network_genl_mcgrp.id, GFP_ATOMIC);
 
 	return;
 
@@ -163,7 +164,8 @@ void hsr_nl_nodedown(struct hsr_priv *hsr_priv, unsigned char addr[ETH_ALEN])
 		goto nla_put_failure;
 
 	genlmsg_end(skb, msg_head);
-	genlmsg_multicast(skb, 0, hsr_network_genl_mcgrp.id, GFP_ATOMIC);
+	genlmsg_multicast(&hsr_genl_family, skb, 0,
+			  hsr_network_genl_mcgrp.id, GFP_ATOMIC);
 
 	return;
 
diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c
index 1a81709a4717..5172f467a383 100644
--- a/net/ieee802154/netlink.c
+++ b/net/ieee802154/netlink.c
@@ -70,7 +70,7 @@ int ieee802154_nl_mcast(struct sk_buff *msg, unsigned int group)
 	if (genlmsg_end(msg, hdr) < 0)
 		goto out;
 
-	return genlmsg_multicast(msg, 0, group, GFP_ATOMIC);
+	return genlmsg_multicast(&nl802154_family, msg, 0, group, GFP_ATOMIC);
 out:
 	nlmsg_free(msg);
 	return -ENOBUFS;
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index e9ef640200b4..36e3a86cacf6 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -883,11 +883,12 @@ static int genl_ctrl_event(int event, struct genl_family *family,
 		return PTR_ERR(msg);
 
 	if (!family->netnsok) {
-		genlmsg_multicast_netns(&init_net, msg, 0,
+		genlmsg_multicast_netns(&genl_ctrl, &init_net, msg, 0,
 					GENL_ID_CTRL, GFP_KERNEL);
 	} else {
 		rcu_read_lock();
-		genlmsg_multicast_allns(msg, 0, GENL_ID_CTRL, GFP_ATOMIC);
+		genlmsg_multicast_allns(&genl_ctrl, msg, 0,
+					GENL_ID_CTRL, GFP_ATOMIC);
 		rcu_read_unlock();
 	}
 
@@ -993,14 +994,15 @@ static int genlmsg_mcast(struct sk_buff *skb, u32 portid, unsigned long group,
 	return err;
 }
 
-int genlmsg_multicast_allns(struct sk_buff *skb, u32 portid, unsigned int group,
-			    gfp_t flags)
+int genlmsg_multicast_allns(struct genl_family *family, struct sk_buff *skb,
+			    u32 portid, unsigned int group, gfp_t flags)
 {
 	return genlmsg_mcast(skb, portid, group, flags);
 }
 EXPORT_SYMBOL(genlmsg_multicast_allns);
 
-void genl_notify(struct sk_buff *skb, struct net *net, u32 portid, u32 group,
+void genl_notify(struct genl_family *family,
+		 struct sk_buff *skb, struct net *net, u32 portid, u32 group,
 		 struct nlmsghdr *nlh, gfp_t flags)
 {
 	struct sock *sk = net->genl_sock;
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index fe6760d328a0..3092df313fb1 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -194,7 +194,8 @@ int nfc_genl_targets_found(struct nfc_dev *dev)
 
 	genlmsg_end(msg, hdr);
 
-	return genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_ATOMIC);
+	return genlmsg_multicast(&nfc_genl_family, msg, 0,
+				 nfc_genl_event_mcgrp.id, GFP_ATOMIC);
 
 nla_put_failure:
 	genlmsg_cancel(msg, hdr);
@@ -223,7 +224,8 @@ int nfc_genl_target_lost(struct nfc_dev *dev, u32 target_idx)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
 
 	return 0;
 
@@ -255,7 +257,8 @@ int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
 
 	return 0;
 
@@ -285,7 +288,8 @@ int nfc_genl_tm_deactivated(struct nfc_dev *dev)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
 
 	return 0;
 
@@ -318,7 +322,8 @@ int nfc_genl_device_added(struct nfc_dev *dev)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
 
 	return 0;
 
@@ -348,7 +353,8 @@ int nfc_genl_device_removed(struct nfc_dev *dev)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
 
 	return 0;
 
@@ -414,7 +420,8 @@ int nfc_genl_llc_send_sdres(struct nfc_dev *dev, struct hlist_head *sdres_list)
 
 	genlmsg_end(msg, hdr);
 
-	return genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_ATOMIC);
+	return genlmsg_multicast(&nfc_genl_family, msg, 0,
+				 nfc_genl_event_mcgrp.id, GFP_ATOMIC);
 
 nla_put_failure:
 	genlmsg_cancel(msg, hdr);
@@ -448,7 +455,8 @@ int nfc_genl_se_added(struct nfc_dev *dev, u32 se_idx, u16 type)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
 
 	return 0;
 
@@ -479,7 +487,8 @@ int nfc_genl_se_removed(struct nfc_dev *dev, u32 se_idx)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
 
 	return 0;
 
@@ -600,7 +609,8 @@ int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx,
 
 	dev->dep_link_up = true;
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_ATOMIC);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_ATOMIC);
 
 	return 0;
 
@@ -632,7 +642,8 @@ int nfc_genl_dep_link_down_event(struct nfc_dev *dev)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_ATOMIC);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_ATOMIC);
 
 	return 0;
 
@@ -1137,7 +1148,8 @@ int nfc_genl_fw_download_done(struct nfc_dev *dev, const char *firmware_name,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
 
 	return 0;
 
@@ -1308,7 +1320,8 @@ static void se_io_cb(void *context, u8 *apdu, size_t apdu_len, int err)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0,
+			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
 
 	kfree(ctx);
 
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 3e2bb15fd717..5c19846b1d2a 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -61,10 +61,11 @@
 
 int ovs_net_id __read_mostly;
 
-static void ovs_notify(struct sk_buff *skb, struct genl_info *info,
+static void ovs_notify(struct genl_family *family,
+		       struct sk_buff *skb, struct genl_info *info,
 		       struct genl_multicast_group *grp)
 {
-	genl_notify(skb, genl_info_net(info), info->snd_portid,
+	genl_notify(family, skb, genl_info_net(info), info->snd_portid,
 		    grp->id, info->nlhdr, GFP_KERNEL);
 }
 
@@ -877,9 +878,10 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 	ovs_unlock();
 
 	if (!IS_ERR(reply))
-		ovs_notify(reply, info, &ovs_dp_flow_multicast_group);
+		ovs_notify(&dp_flow_genl_family, reply, info,
+			   &ovs_dp_flow_multicast_group);
 	else
-		genl_set_err(sock_net(skb->sk), 0,
+		genl_set_err(&dp_flow_genl_family, sock_net(skb->sk), 0,
 			     ovs_dp_flow_multicast_group.id, PTR_ERR(reply));
 	return 0;
 
@@ -990,7 +992,8 @@ static int ovs_flow_cmd_del(struct sk_buff *skb, struct genl_info *info)
 	ovs_flow_free(flow, true);
 	ovs_unlock();
 
-	ovs_notify(reply, info, &ovs_dp_flow_multicast_group);
+	ovs_notify(&dp_flow_genl_family, reply, info,
+		   &ovs_dp_flow_multicast_group);
 	return 0;
 unlock:
 	ovs_unlock();
@@ -1237,7 +1240,8 @@ static int ovs_dp_cmd_new(struct sk_buff *skb, struct genl_info *info)
 
 	ovs_unlock();
 
-	ovs_notify(reply, info, &ovs_dp_datapath_multicast_group);
+	ovs_notify(&dp_datapath_genl_family, reply, info,
+		   &ovs_dp_datapath_multicast_group);
 	return 0;
 
 err_destroy_local_port:
@@ -1302,7 +1306,8 @@ static int ovs_dp_cmd_del(struct sk_buff *skb, struct genl_info *info)
 	__dp_destroy(dp);
 	ovs_unlock();
 
-	ovs_notify(reply, info, &ovs_dp_datapath_multicast_group);
+	ovs_notify(&dp_datapath_genl_family, reply, info,
+		   &ovs_dp_datapath_multicast_group);
 
 	return 0;
 unlock:
@@ -1326,14 +1331,15 @@ static int ovs_dp_cmd_set(struct sk_buff *skb, struct genl_info *info)
 				      info->snd_seq, OVS_DP_CMD_NEW);
 	if (IS_ERR(reply)) {
 		err = PTR_ERR(reply);
-		genl_set_err(sock_net(skb->sk), 0,
+		genl_set_err(&dp_datapath_genl_family, sock_net(skb->sk), 0,
 			     ovs_dp_datapath_multicast_group.id, err);
 		err = 0;
 		goto unlock;
 	}
 
 	ovs_unlock();
-	ovs_notify(reply, info, &ovs_dp_datapath_multicast_group);
+	ovs_notify(&dp_datapath_genl_family, reply, info,
+		   &ovs_dp_datapath_multicast_group);
 
 	return 0;
 unlock:
@@ -1425,7 +1431,7 @@ static const struct nla_policy vport_policy[OVS_VPORT_ATTR_MAX + 1] = {
 	[OVS_VPORT_ATTR_OPTIONS] = { .type = NLA_NESTED },
 };
 
-static struct genl_family dp_vport_genl_family = {
+struct genl_family dp_vport_genl_family = {
 	.id = GENL_ID_GENERATE,
 	.hdrsize = sizeof(struct ovs_header),
 	.name = OVS_VPORT_FAMILY,
@@ -1595,7 +1601,8 @@ static int ovs_vport_cmd_new(struct sk_buff *skb, struct genl_info *info)
 		goto exit_unlock;
 	}
 
-	ovs_notify(reply, info, &ovs_dp_vport_multicast_group);
+	ovs_notify(&dp_vport_genl_family, reply, info,
+		   &ovs_dp_vport_multicast_group);
 
 exit_unlock:
 	ovs_unlock();
@@ -1642,7 +1649,8 @@ static int ovs_vport_cmd_set(struct sk_buff *skb, struct genl_info *info)
 	BUG_ON(err < 0);
 
 	ovs_unlock();
-	ovs_notify(reply, info, &ovs_dp_vport_multicast_group);
+	ovs_notify(&dp_vport_genl_family, reply, info,
+		   &ovs_dp_vport_multicast_group);
 	return 0;
 
 exit_free:
@@ -1679,7 +1687,8 @@ static int ovs_vport_cmd_del(struct sk_buff *skb, struct genl_info *info)
 	err = 0;
 	ovs_dp_detach_port(vport);
 
-	ovs_notify(reply, info, &ovs_dp_vport_multicast_group);
+	ovs_notify(&dp_vport_genl_family, reply, info,
+		   &ovs_dp_vport_multicast_group);
 
 exit_unlock:
 	ovs_unlock();
diff --git a/net/openvswitch/datapath.h b/net/openvswitch/datapath.h
index d3d14a58aa91..4067ea41be28 100644
--- a/net/openvswitch/datapath.h
+++ b/net/openvswitch/datapath.h
@@ -177,6 +177,7 @@ static inline struct vport *ovs_vport_ovsl(const struct datapath *dp, int port_n
 }
 
 extern struct notifier_block ovs_dp_device_notifier;
+extern struct genl_family dp_vport_genl_family;
 extern struct genl_multicast_group ovs_dp_vport_multicast_group;
 
 void ovs_dp_process_received_packet(struct vport *, struct sk_buff *);
diff --git a/net/openvswitch/dp_notify.c b/net/openvswitch/dp_notify.c
index 3d55ead6095c..f4b66c84ea0b 100644
--- a/net/openvswitch/dp_notify.c
+++ b/net/openvswitch/dp_notify.c
@@ -34,13 +34,14 @@ static void dp_detach_port_notify(struct vport *vport)
 					  OVS_VPORT_CMD_DEL);
 	ovs_dp_detach_port(vport);
 	if (IS_ERR(notify)) {
-		genl_set_err(ovs_dp_get_net(dp), 0,
+		genl_set_err(&dp_vport_genl_family, ovs_dp_get_net(dp), 0,
 			     ovs_dp_vport_multicast_group.id,
 			     PTR_ERR(notify));
 		return;
 	}
 
-	genlmsg_multicast_netns(ovs_dp_get_net(dp), notify, 0,
+	genlmsg_multicast_netns(&dp_vport_genl_family,
+				ovs_dp_get_net(dp), notify, 0,
 				ovs_dp_vport_multicast_group.id,
 				GFP_KERNEL);
 }
diff --git a/net/wimax/op-msg.c b/net/wimax/op-msg.c
index ff19cbeaf607..f37dd3c5576d 100644
--- a/net/wimax/op-msg.c
+++ b/net/wimax/op-msg.c
@@ -279,7 +279,8 @@ int wimax_msg_send(struct wimax_dev *wimax_dev, struct sk_buff *skb)
 
 	d_printf(1, dev, "CTX: wimax msg, %zu bytes\n", size);
 	d_dump(2, dev, msg, size);
-	genlmsg_multicast(skb, 0, wimax_gnl_mcg.id, GFP_KERNEL);
+	genlmsg_multicast(&wimax_gnl_family, skb, 0,
+			  wimax_gnl_mcg.id, GFP_KERNEL);
 	d_printf(1, dev, "CTX: genl multicast done\n");
 	return 0;
 }
diff --git a/net/wimax/stack.c b/net/wimax/stack.c
index 6328afe90319..18888748e699 100644
--- a/net/wimax/stack.c
+++ b/net/wimax/stack.c
@@ -177,7 +177,8 @@ int wimax_gnl_re_state_change_send(
 		goto out;
 	}
 	genlmsg_end(report_skb, header);
-	genlmsg_multicast(report_skb, 0, wimax_gnl_mcg.id, GFP_KERNEL);
+	genlmsg_multicast(&wimax_gnl_family, report_skb, 0,
+			  wimax_gnl_mcg.id, GFP_KERNEL);
 out:
 	d_fnend(3, dev, "(wimax_dev %p report_skb %p) = %d\n",
 		wimax_dev, report_skb, result);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 1b6c5dd4dccf..f20edfd2e1f0 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -6868,7 +6868,7 @@ void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
 
 	nla_nest_end(skb, data);
 	genlmsg_end(skb, hdr);
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), skb, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
 				nl80211_testmode_mcgrp.id, gfp);
 }
 EXPORT_SYMBOL(cfg80211_testmode_event);
@@ -9597,7 +9597,7 @@ void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
 		return;
 	}
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_config_mcgrp.id, GFP_KERNEL);
 }
 
@@ -9707,7 +9707,7 @@ void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
 		return;
 	}
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_scan_mcgrp.id, GFP_KERNEL);
 }
 
@@ -9726,7 +9726,7 @@ void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
 		return;
 	}
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_scan_mcgrp.id, GFP_KERNEL);
 }
 
@@ -9745,7 +9745,7 @@ void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
 		return;
 	}
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_scan_mcgrp.id, GFP_KERNEL);
 }
 
@@ -9764,7 +9764,7 @@ void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
 		return;
 	}
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_scan_mcgrp.id, GFP_KERNEL);
 }
 
@@ -9782,7 +9782,7 @@ void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
 		return;
 	}
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_scan_mcgrp.id, GFP_KERNEL);
 }
 
@@ -9837,8 +9837,8 @@ void nl80211_send_reg_change_event(struct regulatory_request *request)
 	genlmsg_end(msg, hdr);
 
 	rcu_read_lock();
-	genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
-				GFP_ATOMIC);
+	genlmsg_multicast_allns(&nl80211_fam, msg, 0,
+				nl80211_regulatory_mcgrp.id, GFP_ATOMIC);
 	rcu_read_unlock();
 
 	return;
@@ -9873,7 +9873,7 @@ static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -9961,7 +9961,7 @@ static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10017,7 +10017,7 @@ void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10056,7 +10056,7 @@ void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10094,7 +10094,7 @@ void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, GFP_KERNEL);
 	return;
 
@@ -10128,7 +10128,7 @@ void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10169,7 +10169,7 @@ void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10208,7 +10208,7 @@ void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10261,8 +10261,8 @@ void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
 	genlmsg_end(msg, hdr);
 
 	rcu_read_lock();
-	genlmsg_multicast_allns(msg, 0, nl80211_regulatory_mcgrp.id,
-				GFP_ATOMIC);
+	genlmsg_multicast_allns(&nl80211_fam, msg, 0,
+				nl80211_regulatory_mcgrp.id, GFP_ATOMIC);
 	rcu_read_unlock();
 
 	return;
@@ -10307,7 +10307,7 @@ static void nl80211_send_remain_on_chan_event(
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10362,7 +10362,7 @@ void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
 		return;
 	}
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 }
 EXPORT_SYMBOL(cfg80211_new_sta);
@@ -10392,7 +10392,7 @@ void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10428,7 +10428,7 @@ void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10590,7 +10590,7 @@ void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10639,7 +10639,7 @@ void cfg80211_cqm_rssi_notify(struct net_device *dev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10684,7 +10684,7 @@ static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10742,7 +10742,7 @@ nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10789,7 +10789,7 @@ static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10866,7 +10866,7 @@ void cfg80211_cqm_txe_notify(struct net_device *dev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10915,7 +10915,7 @@ nl80211_radar_notify(struct cfg80211_registered_device *rdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -10962,7 +10962,7 @@ void cfg80211_cqm_pktloss_notify(struct net_device *dev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -11002,7 +11002,7 @@ void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -11154,7 +11154,7 @@ void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -11196,7 +11196,7 @@ void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, gfp);
 	return;
 
@@ -11279,7 +11279,7 @@ void cfg80211_ft_event(struct net_device *netdev,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast_netns(wiphy_net(&rdev->wiphy), msg, 0,
+	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
 				nl80211_mlme_mcgrp.id, GFP_KERNEL);
 }
 EXPORT_SYMBOL(cfg80211_ft_event);
-- 
cgit 


From 2a94fe48f32ccf7321450a2cc07f2b724a444e5b Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Tue, 19 Nov 2013 15:19:39 +0100
Subject: genetlink: make multicast groups const, prevent abuse

Register generic netlink multicast groups as an array with
the family and give them contiguous group IDs. Then instead
of passing the global group ID to the various functions that
send messages, pass the ID relative to the family - for most
families that's just 0 because the only have one group.

This avoids the list_head and ID in each group, adding a new
field for the mcast group ID offset to the family.

At the same time, this allows us to prevent abusing groups
again like the quota and dropmon code did, since we can now
check that a family only uses a group it owns.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/acpi/event.c            |  26 ++--
 drivers/net/team/team.c         |  25 +---
 drivers/thermal/thermal_core.c  |  24 ++--
 fs/quota/netlink.c              |  15 +--
 include/linux/genl_magic_func.h |  49 +++----
 include/net/genetlink.h         |  48 ++++---
 net/core/drop_monitor.c         |  18 +--
 net/hsr/hsr_netlink.c           |  19 +--
 net/ieee802154/ieee802154.h     |   6 +-
 net/ieee802154/netlink.c        |  26 ++--
 net/ieee802154/nl-mac.c         |  22 +---
 net/netlink/genetlink.c         | 278 ++++++++++++++++++++++++----------------
 net/nfc/netlink.c               |  51 +++-----
 net/openvswitch/datapath.c      |  43 +++----
 net/openvswitch/dp_notify.c     |   6 +-
 net/wimax/op-msg.c              |   3 +-
 net/wimax/stack.c               |  21 ++-
 net/wimax/wimax-internal.h      |   1 -
 net/wireless/nl80211.c          | 129 ++++++++-----------
 19 files changed, 377 insertions(+), 433 deletions(-)

diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c
index 68a8755202ec..aeb5aa6ce068 100644
--- a/drivers/acpi/event.c
+++ b/drivers/acpi/event.c
@@ -78,15 +78,17 @@ enum {
 #define ACPI_GENL_VERSION		0x01
 #define ACPI_GENL_MCAST_GROUP_NAME 	"acpi_mc_group"
 
+static const struct genl_multicast_group acpi_event_mcgrps[] = {
+	{ .name = ACPI_GENL_MCAST_GROUP_NAME, },
+};
+
 static struct genl_family acpi_event_genl_family = {
 	.id = GENL_ID_GENERATE,
 	.name = ACPI_GENL_FAMILY_NAME,
 	.version = ACPI_GENL_VERSION,
 	.maxattr = ACPI_GENL_ATTR_MAX,
-};
-
-static struct genl_multicast_group acpi_event_mcgrp = {
-	.name = ACPI_GENL_MCAST_GROUP_NAME,
+	.mcgrps = acpi_event_mcgrps,
+	.n_mcgrps = ARRAY_SIZE(acpi_event_mcgrps),
 };
 
 int acpi_bus_generate_netlink_event(const char *device_class,
@@ -146,8 +148,7 @@ int acpi_bus_generate_netlink_event(const char *device_class,
 		return result;
 	}
 
-	genlmsg_multicast(&acpi_event_genl_family,
-			  skb, 0, acpi_event_mcgrp.id, GFP_ATOMIC);
+	genlmsg_multicast(&acpi_event_genl_family, skb, 0, 0, GFP_ATOMIC);
 	return 0;
 }
 
@@ -155,18 +156,7 @@ EXPORT_SYMBOL(acpi_bus_generate_netlink_event);
 
 static int acpi_event_genetlink_init(void)
 {
-	int result;
-
-	result = genl_register_family(&acpi_event_genl_family);
-	if (result)
-		return result;
-
-	result = genl_register_mc_group(&acpi_event_genl_family,
-					&acpi_event_mcgrp);
-	if (result)
-		genl_unregister_family(&acpi_event_genl_family);
-
-	return result;
+	return genl_register_family(&acpi_event_genl_family);
 }
 
 #else
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 2721e29935a6..0715de50b3dc 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -2670,16 +2670,15 @@ static const struct genl_ops team_nl_ops[] = {
 	},
 };
 
-static struct genl_multicast_group team_change_event_mcgrp = {
-	.name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME,
+static const struct genl_multicast_group team_nl_mcgrps[] = {
+	{ .name = TEAM_GENL_CHANGE_EVENT_MC_GRP_NAME, },
 };
 
 static int team_nl_send_multicast(struct sk_buff *skb,
 				  struct team *team, u32 portid)
 {
 	return genlmsg_multicast_netns(&team_nl_family, dev_net(team->dev),
-				       skb, 0, team_change_event_mcgrp.id,
-				       GFP_KERNEL);
+				       skb, 0, 0, GFP_KERNEL);
 }
 
 static int team_nl_send_event_options_get(struct team *team,
@@ -2698,22 +2697,8 @@ static int team_nl_send_event_port_get(struct team *team,
 
 static int team_nl_init(void)
 {
-	int err;
-
-	err = genl_register_family_with_ops(&team_nl_family, team_nl_ops);
-	if (err)
-		return err;
-
-	err = genl_register_mc_group(&team_nl_family, &team_change_event_mcgrp);
-	if (err)
-		goto err_change_event_grp_reg;
-
-	return 0;
-
-err_change_event_grp_reg:
-	genl_unregister_family(&team_nl_family);
-
-	return err;
+	return genl_register_family_with_ops_groups(&team_nl_family, team_nl_ops,
+						    team_nl_mcgrps);
 }
 
 static void team_nl_fini(void)
diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c
index 2570a944fffc..19edd6124ca3 100644
--- a/drivers/thermal/thermal_core.c
+++ b/drivers/thermal/thermal_core.c
@@ -1606,15 +1606,17 @@ exit:
 EXPORT_SYMBOL_GPL(thermal_zone_get_zone_by_name);
 
 #ifdef CONFIG_NET
+static const struct genl_multicast_group thermal_event_mcgrps[] = {
+	{ .name = THERMAL_GENL_MCAST_GROUP_NAME, },
+};
+
 static struct genl_family thermal_event_genl_family = {
 	.id = GENL_ID_GENERATE,
 	.name = THERMAL_GENL_FAMILY_NAME,
 	.version = THERMAL_GENL_VERSION,
 	.maxattr = THERMAL_GENL_ATTR_MAX,
-};
-
-static struct genl_multicast_group thermal_event_mcgrp = {
-	.name = THERMAL_GENL_MCAST_GROUP_NAME,
+	.mcgrps = thermal_event_mcgrps,
+	.n_mcgrps = ARRAY_SIZE(thermal_event_mcgrps),
 };
 
 int thermal_generate_netlink_event(struct thermal_zone_device *tz,
@@ -1676,7 +1678,7 @@ int thermal_generate_netlink_event(struct thermal_zone_device *tz,
 	}
 
 	result = genlmsg_multicast(&thermal_event_genl_family, skb, 0,
-				   thermal_event_mcgrp.id, GFP_ATOMIC);
+				   0, GFP_ATOMIC);
 	if (result)
 		dev_err(&tz->device, "Failed to send netlink event:%d", result);
 
@@ -1686,17 +1688,7 @@ EXPORT_SYMBOL_GPL(thermal_generate_netlink_event);
 
 static int genetlink_init(void)
 {
-	int result;
-
-	result = genl_register_family(&thermal_event_genl_family);
-	if (result)
-		return result;
-
-	result = genl_register_mc_group(&thermal_event_genl_family,
-					&thermal_event_mcgrp);
-	if (result)
-		genl_unregister_family(&thermal_event_genl_family);
-	return result;
+	return genl_register_family(&thermal_event_genl_family);
 }
 
 static void genetlink_exit(void)
diff --git a/fs/quota/netlink.c b/fs/quota/netlink.c
index a5b5eddf6603..72d29177998e 100644
--- a/fs/quota/netlink.c
+++ b/fs/quota/netlink.c
@@ -9,6 +9,10 @@
 #include <net/netlink.h>
 #include <net/genetlink.h>
 
+static const struct genl_multicast_group quota_mcgrps[] = {
+	{ .name = "events", },
+};
+
 /* Netlink family structure for quota */
 static struct genl_family quota_genl_family = {
 	/*
@@ -22,10 +26,8 @@ static struct genl_family quota_genl_family = {
 	.name = "VFS_DQUOT",
 	.version = 1,
 	.maxattr = QUOTA_NL_A_MAX,
-};
-
-static struct genl_multicast_group quota_mcgrp = {
-	.name = "events",
+	.mcgrps = quota_mcgrps,
+	.n_mcgrps = ARRAY_SIZE(quota_mcgrps),
 };
 
 /**
@@ -88,7 +90,7 @@ void quota_send_warning(struct kqid qid, dev_t dev,
 		goto attr_err_out;
 	genlmsg_end(skb, msg_head);
 
-	genlmsg_multicast(&quota_genl_family, skb, 0, quota_mcgrp.id, GFP_NOFS);
+	genlmsg_multicast(&quota_genl_family, skb, 0, 0, GFP_NOFS);
 	return;
 attr_err_out:
 	printk(KERN_ERR "VFS: Not enough space to compose quota message!\n");
@@ -102,9 +104,6 @@ static int __init quota_init(void)
 	if (genl_register_family(&quota_genl_family) != 0)
 		printk(KERN_ERR
 		       "VFS: Failed to create quota netlink interface.\n");
-	if (genl_register_mc_group(&quota_genl_family, &quota_mcgrp))
-		printk(KERN_ERR
-		       "VFS: Failed to register quota mcast group.\n");
 	return 0;
 };
 
diff --git a/include/linux/genl_magic_func.h b/include/linux/genl_magic_func.h
index 5b9b8ae6748b..c0894dd8827b 100644
--- a/include/linux/genl_magic_func.h
+++ b/include/linux/genl_magic_func.h
@@ -273,49 +273,40 @@ static struct genl_family ZZZ_genl_family __read_mostly = {
  * Magic: define multicast groups
  * Magic: define multicast group registration helper
  */
+#define ZZZ_genl_mcgrps		CONCAT_(GENL_MAGIC_FAMILY, _genl_mcgrps)
+static const struct genl_multicast_group ZZZ_genl_mcgrps[] = {
+#undef GENL_mc_group
+#define GENL_mc_group(group) { .name = #group, },
+#include GENL_MAGIC_INCLUDE_FILE
+};
+
+enum CONCAT_(GENL_MAGIC_FAMILY, group_ids) {
+#undef GENL_mc_group
+#define GENL_mc_group(group) CONCAT_(GENL_MAGIC_FAMILY, _group_ ## group),
+#include GENL_MAGIC_INCLUDE_FILE
+};
+
 #undef GENL_mc_group
 #define GENL_mc_group(group)						\
-static struct genl_multicast_group					\
-CONCAT_(GENL_MAGIC_FAMILY, _mcg_ ## group) __read_mostly = {		\
-	.name = #group,							\
-};									\
 static int CONCAT_(GENL_MAGIC_FAMILY, _genl_multicast_ ## group)(	\
 	struct sk_buff *skb, gfp_t flags)				\
 {									\
 	unsigned int group_id =						\
-		CONCAT_(GENL_MAGIC_FAMILY, _mcg_ ## group).id;	\
-	if (!group_id)							\
-		return -EINVAL;						\
+		CONCAT_(GENL_MAGIC_FAMILY, _group_ ## group);		\
 	return genlmsg_multicast(&ZZZ_genl_family, skb, 0,		\
 				 group_id, flags);			\
 }
 
 #include GENL_MAGIC_INCLUDE_FILE
 
-int CONCAT_(GENL_MAGIC_FAMILY, _genl_register)(void)
-{
-	int err = genl_register_family_with_ops(&ZZZ_genl_family, ZZZ_genl_ops);
-	if (err)
-		return err;
-#undef GENL_mc_group
-#define GENL_mc_group(group)						\
-	err = genl_register_mc_group(&ZZZ_genl_family,			\
-		&CONCAT_(GENL_MAGIC_FAMILY, _mcg_ ## group));		\
-	if (err)							\
-		goto fail;						\
-	else								\
-		pr_info("%s: mcg %s: %u\n", #group,			\
-			__stringify(GENL_MAGIC_FAMILY),			\
-			CONCAT_(GENL_MAGIC_FAMILY, _mcg_ ## group).id);
-
-#include GENL_MAGIC_INCLUDE_FILE
-
 #undef GENL_mc_group
 #define GENL_mc_group(group)
-	return 0;
-fail:
-	genl_unregister_family(&ZZZ_genl_family);
-	return err;
+
+int CONCAT_(GENL_MAGIC_FAMILY, _genl_register)(void)
+{
+	return genl_register_family_with_ops_groups(&ZZZ_genl_family,	\
+						    ZZZ_genl_ops,	\
+						    ZZZ_genl_mcgrps);
 }
 
 void CONCAT_(GENL_MAGIC_FAMILY, _genl_unregister)(void)
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 60aef0df386b..ace4abf118d7 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -10,14 +10,9 @@
 /**
  * struct genl_multicast_group - generic netlink multicast group
  * @name: name of the multicast group, names are per-family
- * @id: multicast group ID, assigned by the core, to use with
- *      genlmsg_multicast().
- * @list: list entry for linking
  */
 struct genl_multicast_group {
-	struct list_head	list;		/* private */
 	char			name[GENL_NAMSIZ];
-	u32			id;
 };
 
 struct genl_ops;
@@ -38,7 +33,9 @@ struct genl_info;
  *	undo operations done by pre_doit, for example release locks
  * @attrbuf: buffer to store parsed attributes
  * @family_list: family list
- * @mcast_groups: multicast groups list
+ * @mcgrps: multicast groups used by this family (private)
+ * @n_mcgrps: number of multicast groups (private)
+ * @mcgrp_offset: starting number of multicast group IDs in this family
  * @ops: the operations supported by this family (private)
  * @n_ops: number of operations supported by this family (private)
  */
@@ -58,9 +55,11 @@ struct genl_family {
 					     struct genl_info *info);
 	struct nlattr **	attrbuf;	/* private */
 	const struct genl_ops *	ops;		/* private */
+	const struct genl_multicast_group *mcgrps; /* private */
 	unsigned int		n_ops;		/* private */
+	unsigned int		n_mcgrps;	/* private */
+	unsigned int		mcgrp_offset;	/* private */
 	struct list_head	family_list;	/* private */
-	struct list_head	mcast_groups;	/* private */
 	struct module		*module;
 };
 
@@ -150,22 +149,30 @@ static inline int genl_register_family(struct genl_family *family)
  *
  * Return 0 on success or a negative error code.
  */
-static inline int _genl_register_family_with_ops(struct genl_family *family,
-						 const struct genl_ops *ops,
-						 size_t n_ops)
+static inline int
+_genl_register_family_with_ops_grps(struct genl_family *family,
+				    const struct genl_ops *ops, size_t n_ops,
+				    const struct genl_multicast_group *mcgrps,
+				    size_t n_mcgrps)
 {
 	family->module = THIS_MODULE;
 	family->ops = ops;
 	family->n_ops = n_ops;
+	family->mcgrps = mcgrps;
+	family->n_mcgrps = n_mcgrps;
 	return __genl_register_family(family);
 }
 
-#define genl_register_family_with_ops(family, ops)	\
-	_genl_register_family_with_ops((family), (ops), ARRAY_SIZE(ops))
+#define genl_register_family_with_ops(family, ops)			\
+	_genl_register_family_with_ops_grps((family),			\
+					    (ops), ARRAY_SIZE(ops),	\
+					    NULL, 0)
+#define genl_register_family_with_ops_groups(family, ops, grps)	\
+	_genl_register_family_with_ops_grps((family),			\
+					    (ops), ARRAY_SIZE(ops),	\
+					    (grps), ARRAY_SIZE(grps))
 
 int genl_unregister_family(struct genl_family *family);
-int genl_register_mc_group(struct genl_family *family,
-			   struct genl_multicast_group *grp);
 void genl_notify(struct genl_family *family,
 		 struct sk_buff *skb, struct net *net, u32 portid,
 		 u32 group, struct nlmsghdr *nlh, gfp_t flags);
@@ -251,13 +258,16 @@ static inline void genlmsg_cancel(struct sk_buff *skb, void *hdr)
  * @net: the net namespace
  * @skb: netlink message as socket buffer
  * @portid: own netlink portid to avoid sending to yourself
- * @group: multicast group id
+ * @group: offset of multicast group in groups array
  * @flags: allocation flags
  */
 static inline int genlmsg_multicast_netns(struct genl_family *family,
 					  struct net *net, struct sk_buff *skb,
 					  u32 portid, unsigned int group, gfp_t flags)
 {
+	if (group >= family->n_mcgrps)
+		return -EINVAL;
+	group = family->mcgrp_offset + group;
 	return nlmsg_multicast(net->genl_sock, skb, portid, group, flags);
 }
 
@@ -266,13 +276,16 @@ static inline int genlmsg_multicast_netns(struct genl_family *family,
  * @family: the generic netlink family
  * @skb: netlink message as socket buffer
  * @portid: own netlink portid to avoid sending to yourself
- * @group: multicast group id
+ * @group: offset of multicast group in groups array
  * @flags: allocation flags
  */
 static inline int genlmsg_multicast(struct genl_family *family,
 				    struct sk_buff *skb, u32 portid,
 				    unsigned int group, gfp_t flags)
 {
+	if (group >= family->n_mcgrps)
+		return -EINVAL;
+	group = family->mcgrp_offset + group;
 	return genlmsg_multicast_netns(family, &init_net, skb,
 				       portid, group, flags);
 }
@@ -282,7 +295,7 @@ static inline int genlmsg_multicast(struct genl_family *family,
  * @family: the generic netlink family
  * @skb: netlink message as socket buffer
  * @portid: own netlink portid to avoid sending to yourself
- * @group: multicast group id
+ * @group: offset of multicast group in groups array
  * @flags: allocation flags
  *
  * This function must hold the RTNL or rcu_read_lock().
@@ -365,6 +378,7 @@ static inline struct sk_buff *genlmsg_new(size_t payload, gfp_t flags)
  * @net: the network namespace to report the error to
  * @portid: the PORTID of a process that we want to skip (if any)
  * @group: the broadcast group that will notice the error
+ * 	(this is the offset of the multicast group in the groups array)
  * @code: error code, must be negative (as usual in kernelspace)
  *
  * This function returns the number of broadcast listeners that have set the
diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index 1eab1dc48821..95897183226e 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -106,8 +106,8 @@ static struct sk_buff *reset_per_cpu_data(struct per_cpu_dm_data *data)
 	return skb;
 }
 
-static struct genl_multicast_group dm_mcgrp = {
-	.name = "events",
+static struct genl_multicast_group dropmon_mcgrps[] = {
+	{ .name = "events", },
 };
 
 static void send_dm_alert(struct work_struct *work)
@@ -121,7 +121,7 @@ static void send_dm_alert(struct work_struct *work)
 
 	if (skb)
 		genlmsg_multicast(&net_drop_monitor_family, skb, 0,
-				  dm_mcgrp.id, GFP_KERNEL);
+				  0, GFP_KERNEL);
 }
 
 /*
@@ -369,19 +369,13 @@ static int __init init_net_drop_monitor(void)
 		return -ENOSPC;
 	}
 
-	rc = genl_register_family_with_ops(&net_drop_monitor_family,
-					   dropmon_ops);
+	rc = genl_register_family_with_ops_groups(&net_drop_monitor_family,
+						  dropmon_ops, dropmon_mcgrps);
 	if (rc) {
 		pr_err("Could not create drop monitor netlink family\n");
 		return rc;
 	}
-
-	rc = genl_register_mc_group(&net_drop_monitor_family, &dm_mcgrp);
-	if (rc) {
-		pr_err("Failed to register drop monitor mcast group\n");
-		goto out_unreg;
-	}
-	WARN_ON(dm_mcgrp.id != NET_DM_GRP_ALERT);
+	WARN_ON(net_drop_monitor_family.mcgrp_offset != NET_DM_GRP_ALERT);
 
 	rc = register_netdevice_notifier(&dropmon_net_notifier);
 	if (rc < 0) {
diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c
index 0009416c08c2..5325af85eea6 100644
--- a/net/hsr/hsr_netlink.c
+++ b/net/hsr/hsr_netlink.c
@@ -90,8 +90,8 @@ static struct genl_family hsr_genl_family = {
 	.maxattr = HSR_A_MAX,
 };
 
-static struct genl_multicast_group hsr_network_genl_mcgrp = {
-	.name = "hsr-network",
+static const struct genl_multicast_group hsr_mcgrps[] = {
+	{ .name = "hsr-network", },
 };
 
 
@@ -129,8 +129,7 @@ void hsr_nl_ringerror(struct hsr_priv *hsr_priv, unsigned char addr[ETH_ALEN],
 		goto nla_put_failure;
 
 	genlmsg_end(skb, msg_head);
-	genlmsg_multicast(&hsr_genl_family, skb, 0,
-			  hsr_network_genl_mcgrp.id, GFP_ATOMIC);
+	genlmsg_multicast(&hsr_genl_family, skb, 0, 0, GFP_ATOMIC);
 
 	return;
 
@@ -164,8 +163,7 @@ void hsr_nl_nodedown(struct hsr_priv *hsr_priv, unsigned char addr[ETH_ALEN])
 		goto nla_put_failure;
 
 	genlmsg_end(skb, msg_head);
-	genlmsg_multicast(&hsr_genl_family, skb, 0,
-			  hsr_network_genl_mcgrp.id, GFP_ATOMIC);
+	genlmsg_multicast(&hsr_genl_family, skb, 0, 0, GFP_ATOMIC);
 
 	return;
 
@@ -416,18 +414,13 @@ int __init hsr_netlink_init(void)
 	if (rc)
 		goto fail_rtnl_link_register;
 
-	rc = genl_register_family_with_ops(&hsr_genl_family, hsr_ops);
+	rc = genl_register_family_with_ops_groups(&hsr_genl_family, hsr_ops,
+						  hsr_mcgrps);
 	if (rc)
 		goto fail_genl_register_family;
 
-	rc = genl_register_mc_group(&hsr_genl_family, &hsr_network_genl_mcgrp);
-	if (rc)
-		goto fail_genl_register_mc_group;
-
 	return 0;
 
-fail_genl_register_mc_group:
-	genl_unregister_family(&hsr_genl_family);
 fail_genl_register_family:
 	rtnl_link_unregister(&hsr_link_ops);
 fail_rtnl_link_register:
diff --git a/net/ieee802154/ieee802154.h b/net/ieee802154/ieee802154.h
index 14d5dab4436f..cee4425b9956 100644
--- a/net/ieee802154/ieee802154.h
+++ b/net/ieee802154/ieee802154.h
@@ -54,8 +54,10 @@ int ieee802154_dump_phy(struct sk_buff *skb, struct netlink_callback *cb);
 int ieee802154_add_iface(struct sk_buff *skb, struct genl_info *info);
 int ieee802154_del_iface(struct sk_buff *skb, struct genl_info *info);
 
-extern struct genl_multicast_group ieee802154_coord_mcgrp;
-extern struct genl_multicast_group ieee802154_beacon_mcgrp;
+enum ieee802154_mcgrp_ids {
+	IEEE802154_COORD_MCGRP,
+	IEEE802154_BEACON_MCGRP,
+};
 
 int ieee802154_associate_req(struct sk_buff *skb, struct genl_info *info);
 int ieee802154_associate_resp(struct sk_buff *skb, struct genl_info *info);
diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c
index 5172f467a383..43f1b2bf469f 100644
--- a/net/ieee802154/netlink.c
+++ b/net/ieee802154/netlink.c
@@ -125,25 +125,17 @@ static const struct genl_ops ieee8021154_ops[] = {
 			ieee802154_dump_iface),
 };
 
-int __init ieee802154_nl_init(void)
-{
-	int rc;
-
-	rc = genl_register_family_with_ops(&nl802154_family, ieee8021154_ops);
-	if (rc)
-		return rc;
+static const struct genl_multicast_group ieee802154_mcgrps[] = {
+	[IEEE802154_COORD_MCGRP] = { .name = IEEE802154_MCAST_COORD_NAME, },
+	[IEEE802154_BEACON_MCGRP] = { .name = IEEE802154_MCAST_BEACON_NAME, },
+};
 
-	rc = genl_register_mc_group(&nl802154_family, &ieee802154_coord_mcgrp);
-	if (rc)
-		goto fail;
 
-	rc = genl_register_mc_group(&nl802154_family, &ieee802154_beacon_mcgrp);
-	if (rc)
-		goto fail;
-	return 0;
-fail:
-	genl_unregister_family(&nl802154_family);
-	return rc;
+int __init ieee802154_nl_init(void)
+{
+	return genl_register_family_with_ops_groups(&nl802154_family,
+						    ieee8021154_ops,
+						    ieee802154_mcgrps);
 }
 
 void __exit ieee802154_nl_exit(void)
diff --git a/net/ieee802154/nl-mac.c b/net/ieee802154/nl-mac.c
index 28d493032132..ba5c1e002f37 100644
--- a/net/ieee802154/nl-mac.c
+++ b/net/ieee802154/nl-mac.c
@@ -39,14 +39,6 @@
 
 #include "ieee802154.h"
 
-struct genl_multicast_group ieee802154_coord_mcgrp = {
-	.name		= IEEE802154_MCAST_COORD_NAME,
-};
-
-struct genl_multicast_group ieee802154_beacon_mcgrp = {
-	.name		= IEEE802154_MCAST_BEACON_NAME,
-};
-
 int ieee802154_nl_assoc_indic(struct net_device *dev,
 		struct ieee802154_addr *addr, u8 cap)
 {
@@ -72,7 +64,7 @@ int ieee802154_nl_assoc_indic(struct net_device *dev,
 	    nla_put_u8(msg, IEEE802154_ATTR_CAPABILITY, cap))
 		goto nla_put_failure;
 
-	return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id);
+	return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
 
 nla_put_failure:
 	nlmsg_free(msg);
@@ -98,7 +90,7 @@ int ieee802154_nl_assoc_confirm(struct net_device *dev, u16 short_addr,
 	    nla_put_u16(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr) ||
 	    nla_put_u8(msg, IEEE802154_ATTR_STATUS, status))
 		goto nla_put_failure;
-	return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id);
+	return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
 
 nla_put_failure:
 	nlmsg_free(msg);
@@ -133,7 +125,7 @@ int ieee802154_nl_disassoc_indic(struct net_device *dev,
 	}
 	if (nla_put_u8(msg, IEEE802154_ATTR_REASON, reason))
 		goto nla_put_failure;
-	return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id);
+	return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
 
 nla_put_failure:
 	nlmsg_free(msg);
@@ -157,7 +149,7 @@ int ieee802154_nl_disassoc_confirm(struct net_device *dev, u8 status)
 		    dev->dev_addr) ||
 	    nla_put_u8(msg, IEEE802154_ATTR_STATUS, status))
 		goto nla_put_failure;
-	return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id);
+	return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
 
 nla_put_failure:
 	nlmsg_free(msg);
@@ -183,7 +175,7 @@ int ieee802154_nl_beacon_indic(struct net_device *dev,
 	    nla_put_u16(msg, IEEE802154_ATTR_COORD_SHORT_ADDR, coord_addr) ||
 	    nla_put_u16(msg, IEEE802154_ATTR_COORD_PAN_ID, panid))
 		goto nla_put_failure;
-	return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id);
+	return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
 
 nla_put_failure:
 	nlmsg_free(msg);
@@ -214,7 +206,7 @@ int ieee802154_nl_scan_confirm(struct net_device *dev,
 	    (edl &&
 	     nla_put(msg, IEEE802154_ATTR_ED_LIST, 27, edl)))
 		goto nla_put_failure;
-	return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id);
+	return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
 
 nla_put_failure:
 	nlmsg_free(msg);
@@ -238,7 +230,7 @@ int ieee802154_nl_start_confirm(struct net_device *dev, u8 status)
 		    dev->dev_addr) ||
 	    nla_put_u8(msg, IEEE802154_ATTR_STATUS, status))
 		goto nla_put_failure;
-	return ieee802154_nl_mcast(msg, ieee802154_coord_mcgrp.id);
+	return ieee802154_nl_mcast(msg, IEEE802154_COORD_MCGRP);
 
 nla_put_failure:
 	nlmsg_free(msg);
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 36e3a86cacf6..7dbc4f732c75 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -69,16 +69,20 @@ static struct list_head family_ht[GENL_FAM_TAB_SIZE];
  * abuses the API and thinks it can statically use group 1.
  * That group will typically conflict with other groups that
  * any proper users use.
+ * Bit 16 is marked as used since it's used for generic netlink
+ * and the code no longer marks pre-reserved IDs as used.
  * Bit 17 is marked as already used since the VFS quota code
  * also abused this API and relied on family == group ID, we
  * cater to that by giving it a static family and group ID.
  */
-static unsigned long mc_group_start = 0x3 | BIT(GENL_ID_VFS_DQUOT);
+static unsigned long mc_group_start = 0x3 | BIT(GENL_ID_CTRL) |
+				      BIT(GENL_ID_VFS_DQUOT);
 static unsigned long *mc_groups = &mc_group_start;
 static unsigned long mc_groups_longs = 1;
 
 static int genl_ctrl_event(int event, struct genl_family *family,
-			   struct genl_multicast_group *grp);
+			   const struct genl_multicast_group *grp,
+			   int grp_id);
 
 static inline unsigned int genl_family_hash(unsigned int id)
 {
@@ -144,66 +148,110 @@ static u16 genl_generate_id(void)
 	return 0;
 }
 
-static struct genl_multicast_group notify_grp;
-
-/**
- * genl_register_mc_group - register a multicast group
- *
- * Registers the specified multicast group and notifies userspace
- * about the new group.
- *
- * Returns 0 on success or a negative error code.
- *
- * @family: The generic netlink family the group shall be registered for.
- * @grp: The group to register, must have a name.
- */
-int genl_register_mc_group(struct genl_family *family,
-			   struct genl_multicast_group *grp)
+static int genl_allocate_reserve_groups(int n_groups, int *first_id)
 {
-	int id;
 	unsigned long *new_groups;
-	int err = 0;
+	int start = 0;
+	int i;
+	int id;
+	bool fits;
+
+	do {
+		if (start == 0)
+			id = find_first_zero_bit(mc_groups,
+						 mc_groups_longs *
+						 BITS_PER_LONG);
+		else
+			id = find_next_zero_bit(mc_groups,
+						mc_groups_longs * BITS_PER_LONG,
+						start);
+
+		fits = true;
+		for (i = id;
+		     i < min_t(int, id + n_groups,
+			       mc_groups_longs * BITS_PER_LONG);
+		     i++) {
+			if (test_bit(i, mc_groups)) {
+				start = i;
+				fits = false;
+				break;
+			}
+		}
 
-	BUG_ON(grp->name[0] == '\0');
-	BUG_ON(memchr(grp->name, '\0', GENL_NAMSIZ) == NULL);
+		if (id >= mc_groups_longs * BITS_PER_LONG) {
+			unsigned long new_longs = mc_groups_longs +
+						  BITS_TO_LONGS(n_groups);
+			size_t nlen = new_longs * sizeof(unsigned long);
+
+			if (mc_groups == &mc_group_start) {
+				new_groups = kzalloc(nlen, GFP_KERNEL);
+				if (!new_groups)
+					return -ENOMEM;
+				mc_groups = new_groups;
+				*mc_groups = mc_group_start;
+			} else {
+				new_groups = krealloc(mc_groups, nlen,
+						      GFP_KERNEL);
+				if (!new_groups)
+					return -ENOMEM;
+				mc_groups = new_groups;
+				for (i = 0; i < BITS_TO_LONGS(n_groups); i++)
+					mc_groups[mc_groups_longs + i] = 0;
+			}
+			mc_groups_longs = new_longs;
+		}
+	} while (!fits);
 
-	genl_lock_all();
+	for (i = id; i < id + n_groups; i++)
+		set_bit(i, mc_groups);
+	*first_id = id;
+	return 0;
+}
+
+static struct genl_family genl_ctrl;
+
+static int genl_validate_assign_mc_groups(struct genl_family *family)
+{
+	int first_id;
+	int n_groups = family->n_mcgrps;
+	int err, i;
+	bool groups_allocated = false;
+
+	if (!n_groups)
+		return 0;
+
+	for (i = 0; i < n_groups; i++) {
+		const struct genl_multicast_group *grp = &family->mcgrps[i];
+
+		if (WARN_ON(grp->name[0] == '\0'))
+			return -EINVAL;
+		if (WARN_ON(memchr(grp->name, '\0', GENL_NAMSIZ) == NULL))
+			return -EINVAL;
+	}
 
 	/* special-case our own group and hacks */
-	if (grp == &notify_grp)
-		id = GENL_ID_CTRL;
-	else if (strcmp(family->name, "NET_DM") == 0)
-		id = 1;
-	else if (strcmp(family->name, "VFS_DQUOT") == 0)
-		id = GENL_ID_VFS_DQUOT;
-	else
-		id = find_first_zero_bit(mc_groups,
-					 mc_groups_longs * BITS_PER_LONG);
-
-
-	if (id >= mc_groups_longs * BITS_PER_LONG) {
-		size_t nlen = (mc_groups_longs + 1) * sizeof(unsigned long);
-
-		if (mc_groups == &mc_group_start) {
-			new_groups = kzalloc(nlen, GFP_KERNEL);
-			if (!new_groups) {
-				err = -ENOMEM;
-				goto out;
-			}
-			mc_groups = new_groups;
-			*mc_groups = mc_group_start;
-		} else {
-			new_groups = krealloc(mc_groups, nlen, GFP_KERNEL);
-			if (!new_groups) {
-				err = -ENOMEM;
-				goto out;
-			}
-			mc_groups = new_groups;
-			mc_groups[mc_groups_longs] = 0;
-		}
-		mc_groups_longs++;
+	if (family == &genl_ctrl) {
+		first_id = GENL_ID_CTRL;
+		BUG_ON(n_groups != 1);
+	} else if (strcmp(family->name, "NET_DM") == 0) {
+		first_id = 1;
+		BUG_ON(n_groups != 1);
+	} else if (strcmp(family->name, "VFS_DQUOT") == 0) {
+		first_id = GENL_ID_VFS_DQUOT;
+		BUG_ON(n_groups != 1);
+	} else {
+		groups_allocated = true;
+		err = genl_allocate_reserve_groups(n_groups, &first_id);
+		if (err)
+			return err;
 	}
 
+	family->mcgrp_offset = first_id;
+
+	/* if still initializing, can't and don't need to to realloc bitmaps */
+	if (!init_net.genl_sock)
+		return 0;
+
 	if (family->netnsok) {
 		struct net *net;
 
@@ -219,9 +267,7 @@ int genl_register_mc_group(struct genl_family *family,
 				 * number of _possible_ groups has been
 				 * increased on some sockets which is ok.
 				 */
-				rcu_read_unlock();
-				netlink_table_ungrab();
-				goto out;
+				break;
 			}
 		}
 		rcu_read_unlock();
@@ -229,46 +275,39 @@ int genl_register_mc_group(struct genl_family *family,
 	} else {
 		err = netlink_change_ngroups(init_net.genl_sock,
 					     mc_groups_longs * BITS_PER_LONG);
-		if (err)
-			goto out;
 	}
 
-	grp->id = id;
-	set_bit(id, mc_groups);
-	list_add_tail(&grp->list, &family->mcast_groups);
+	if (groups_allocated && err) {
+		for (i = 0; i < family->n_mcgrps; i++)
+			clear_bit(family->mcgrp_offset + i, mc_groups);
+	}
 
-	genl_ctrl_event(CTRL_CMD_NEWMCAST_GRP, family, grp);
- out:
-	genl_unlock_all();
 	return err;
 }
-EXPORT_SYMBOL(genl_register_mc_group);
 
-static void __genl_unregister_mc_group(struct genl_family *family,
-				       struct genl_multicast_group *grp)
+static void genl_unregister_mc_groups(struct genl_family *family)
 {
 	struct net *net;
+	int i;
 
 	netlink_table_grab();
 	rcu_read_lock();
-	for_each_net_rcu(net)
-		__netlink_clear_multicast_users(net->genl_sock, grp->id);
+	for_each_net_rcu(net) {
+		for (i = 0; i < family->n_mcgrps; i++)
+			__netlink_clear_multicast_users(
+				net->genl_sock, family->mcgrp_offset + i);
+	}
 	rcu_read_unlock();
 	netlink_table_ungrab();
 
-	if (grp->id != 1)
-		clear_bit(grp->id, mc_groups);
-	list_del(&grp->list);
-	genl_ctrl_event(CTRL_CMD_DELMCAST_GRP, family, grp);
-	grp->id = 0;
-}
-
-static void genl_unregister_mc_groups(struct genl_family *family)
-{
-	struct genl_multicast_group *grp, *tmp;
+	for (i = 0; i < family->n_mcgrps; i++) {
+		int grp_id = family->mcgrp_offset + i;
 
-	list_for_each_entry_safe(grp, tmp, &family->mcast_groups, list)
-		__genl_unregister_mc_group(family, grp);
+		if (grp_id != 1)
+			clear_bit(grp_id, mc_groups);
+		genl_ctrl_event(CTRL_CMD_DELMCAST_GRP, family,
+				&family->mcgrps[i], grp_id);
+	}
 }
 
 static int genl_validate_ops(struct genl_family *family)
@@ -314,7 +353,7 @@ static int genl_validate_ops(struct genl_family *family)
  */
 int __genl_register_family(struct genl_family *family)
 {
-	int err = -EINVAL;
+	int err = -EINVAL, i;
 
 	if (family->id && family->id < GENL_MIN_ID)
 		goto errout;
@@ -326,8 +365,6 @@ int __genl_register_family(struct genl_family *family)
 	if (err)
 		return err;
 
-	INIT_LIST_HEAD(&family->mcast_groups);
-
 	genl_lock_all();
 
 	if (genl_family_find_byname(family->name)) {
@@ -359,10 +396,18 @@ int __genl_register_family(struct genl_family *family)
 	} else
 		family->attrbuf = NULL;
 
+	err = genl_validate_assign_mc_groups(family);
+	if (err)
+		goto errout_locked;
+
 	list_add_tail(&family->family_list, genl_family_chain(family->id));
 	genl_unlock_all();
 
-	genl_ctrl_event(CTRL_CMD_NEWFAMILY, family, NULL);
+	/* send all events */
+	genl_ctrl_event(CTRL_CMD_NEWFAMILY, family, NULL, 0);
+	for (i = 0; i < family->n_mcgrps; i++)
+		genl_ctrl_event(CTRL_CMD_NEWMCAST_GRP, family,
+				&family->mcgrps[i], family->mcgrp_offset + i);
 
 	return 0;
 
@@ -398,7 +443,7 @@ int genl_unregister_family(struct genl_family *family)
 		genl_unlock_all();
 
 		kfree(family->attrbuf);
-		genl_ctrl_event(CTRL_CMD_DELFAMILY, family, NULL);
+		genl_ctrl_event(CTRL_CMD_DELFAMILY, family, NULL, 0);
 		return 0;
 	}
 
@@ -658,23 +703,26 @@ static int ctrl_fill_info(struct genl_family *family, u32 portid, u32 seq,
 		nla_nest_end(skb, nla_ops);
 	}
 
-	if (!list_empty(&family->mcast_groups)) {
-		struct genl_multicast_group *grp;
+	if (family->n_mcgrps) {
 		struct nlattr *nla_grps;
-		int idx = 1;
+		int i;
 
 		nla_grps = nla_nest_start(skb, CTRL_ATTR_MCAST_GROUPS);
 		if (nla_grps == NULL)
 			goto nla_put_failure;
 
-		list_for_each_entry(grp, &family->mcast_groups, list) {
+		for (i = 0; i < family->n_mcgrps; i++) {
 			struct nlattr *nest;
+			const struct genl_multicast_group *grp;
 
-			nest = nla_nest_start(skb, idx++);
+			grp = &family->mcgrps[i];
+
+			nest = nla_nest_start(skb, i + 1);
 			if (nest == NULL)
 				goto nla_put_failure;
 
-			if (nla_put_u32(skb, CTRL_ATTR_MCAST_GRP_ID, grp->id) ||
+			if (nla_put_u32(skb, CTRL_ATTR_MCAST_GRP_ID,
+					family->mcgrp_offset + i) ||
 			    nla_put_string(skb, CTRL_ATTR_MCAST_GRP_NAME,
 					   grp->name))
 				goto nla_put_failure;
@@ -692,9 +740,9 @@ nla_put_failure:
 }
 
 static int ctrl_fill_mcgrp_info(struct genl_family *family,
-				struct genl_multicast_group *grp, u32 portid,
-				u32 seq, u32 flags, struct sk_buff *skb,
-				u8 cmd)
+				const struct genl_multicast_group *grp,
+				int grp_id, u32 portid, u32 seq, u32 flags,
+				struct sk_buff *skb, u8 cmd)
 {
 	void *hdr;
 	struct nlattr *nla_grps;
@@ -716,7 +764,7 @@ static int ctrl_fill_mcgrp_info(struct genl_family *family,
 	if (nest == NULL)
 		goto nla_put_failure;
 
-	if (nla_put_u32(skb, CTRL_ATTR_MCAST_GRP_ID, grp->id) ||
+	if (nla_put_u32(skb, CTRL_ATTR_MCAST_GRP_ID, grp_id) ||
 	    nla_put_string(skb, CTRL_ATTR_MCAST_GRP_NAME,
 			   grp->name))
 		goto nla_put_failure;
@@ -782,9 +830,10 @@ static struct sk_buff *ctrl_build_family_msg(struct genl_family *family,
 	return skb;
 }
 
-static struct sk_buff *ctrl_build_mcgrp_msg(struct genl_family *family,
-					    struct genl_multicast_group *grp,
-					    u32 portid, int seq, u8 cmd)
+static struct sk_buff *
+ctrl_build_mcgrp_msg(struct genl_family *family,
+		     const struct genl_multicast_group *grp,
+		     int grp_id, u32 portid, int seq, u8 cmd)
 {
 	struct sk_buff *skb;
 	int err;
@@ -793,7 +842,8 @@ static struct sk_buff *ctrl_build_mcgrp_msg(struct genl_family *family,
 	if (skb == NULL)
 		return ERR_PTR(-ENOBUFS);
 
-	err = ctrl_fill_mcgrp_info(family, grp, portid, seq, 0, skb, cmd);
+	err = ctrl_fill_mcgrp_info(family, grp, grp_id, portid,
+				   seq, 0, skb, cmd);
 	if (err < 0) {
 		nlmsg_free(skb);
 		return ERR_PTR(err);
@@ -856,7 +906,8 @@ static int ctrl_getfamily(struct sk_buff *skb, struct genl_info *info)
 }
 
 static int genl_ctrl_event(int event, struct genl_family *family,
-			   struct genl_multicast_group *grp)
+			   const struct genl_multicast_group *grp,
+			   int grp_id)
 {
 	struct sk_buff *msg;
 
@@ -873,7 +924,7 @@ static int genl_ctrl_event(int event, struct genl_family *family,
 	case CTRL_CMD_NEWMCAST_GRP:
 	case CTRL_CMD_DELMCAST_GRP:
 		BUG_ON(!grp);
-		msg = ctrl_build_mcgrp_msg(family, grp, 0, 0, event);
+		msg = ctrl_build_mcgrp_msg(family, grp, grp_id, 0, 0, event);
 		break;
 	default:
 		return -EINVAL;
@@ -884,11 +935,11 @@ static int genl_ctrl_event(int event, struct genl_family *family,
 
 	if (!family->netnsok) {
 		genlmsg_multicast_netns(&genl_ctrl, &init_net, msg, 0,
-					GENL_ID_CTRL, GFP_KERNEL);
+					0, GFP_KERNEL);
 	} else {
 		rcu_read_lock();
 		genlmsg_multicast_allns(&genl_ctrl, msg, 0,
-					GENL_ID_CTRL, GFP_ATOMIC);
+					0, GFP_ATOMIC);
 		rcu_read_unlock();
 	}
 
@@ -904,8 +955,8 @@ static struct genl_ops genl_ctrl_ops[] = {
 	},
 };
 
-static struct genl_multicast_group notify_grp = {
-	.name		= "notify",
+static struct genl_multicast_group genl_ctrl_groups[] = {
+	{ .name = "notify", },
 };
 
 static int __net_init genl_pernet_init(struct net *net)
@@ -945,7 +996,8 @@ static int __init genl_init(void)
 	for (i = 0; i < GENL_FAM_TAB_SIZE; i++)
 		INIT_LIST_HEAD(&family_ht[i]);
 
-	err = genl_register_family_with_ops(&genl_ctrl, genl_ctrl_ops);
+	err = genl_register_family_with_ops_groups(&genl_ctrl, genl_ctrl_ops,
+						   genl_ctrl_groups);
 	if (err < 0)
 		goto problem;
 
@@ -953,10 +1005,6 @@ static int __init genl_init(void)
 	if (err)
 		goto problem;
 
-	err = genl_register_mc_group(&genl_ctrl, &notify_grp);
-	if (err < 0)
-		goto problem;
-
 	return 0;
 
 problem:
@@ -997,6 +1045,9 @@ static int genlmsg_mcast(struct sk_buff *skb, u32 portid, unsigned long group,
 int genlmsg_multicast_allns(struct genl_family *family, struct sk_buff *skb,
 			    u32 portid, unsigned int group, gfp_t flags)
 {
+	if (group >= family->n_mcgrps)
+		return -EINVAL;
+	group = family->mcgrp_offset + group;
 	return genlmsg_mcast(skb, portid, group, flags);
 }
 EXPORT_SYMBOL(genlmsg_multicast_allns);
@@ -1011,6 +1062,9 @@ void genl_notify(struct genl_family *family,
 	if (nlh)
 		report = nlmsg_report(nlh);
 
+	if (group >= family->n_mcgrps)
+		return;
+	group = family->mcgrp_offset + group;
 	nlmsg_notify(sk, skb, portid, group, report, flags);
 }
 EXPORT_SYMBOL(genl_notify);
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index 3092df313fb1..a9b2342d5253 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -30,8 +30,8 @@
 #include "nfc.h"
 #include "llcp.h"
 
-static struct genl_multicast_group nfc_genl_event_mcgrp = {
-	.name = NFC_GENL_MCAST_EVENT_NAME,
+static const struct genl_multicast_group nfc_genl_mcgrps[] = {
+	{ .name = NFC_GENL_MCAST_EVENT_NAME, },
 };
 
 static struct genl_family nfc_genl_family = {
@@ -194,8 +194,7 @@ int nfc_genl_targets_found(struct nfc_dev *dev)
 
 	genlmsg_end(msg, hdr);
 
-	return genlmsg_multicast(&nfc_genl_family, msg, 0,
-				 nfc_genl_event_mcgrp.id, GFP_ATOMIC);
+	return genlmsg_multicast(&nfc_genl_family, msg, 0, 0, GFP_ATOMIC);
 
 nla_put_failure:
 	genlmsg_cancel(msg, hdr);
@@ -224,8 +223,7 @@ int nfc_genl_target_lost(struct nfc_dev *dev, u32 target_idx)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(&nfc_genl_family, msg, 0,
-			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0, 0, GFP_KERNEL);
 
 	return 0;
 
@@ -257,8 +255,7 @@ int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(&nfc_genl_family, msg, 0,
-			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0, 0, GFP_KERNEL);
 
 	return 0;
 
@@ -288,8 +285,7 @@ int nfc_genl_tm_deactivated(struct nfc_dev *dev)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(&nfc_genl_family, msg, 0,
-			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0, 0, GFP_KERNEL);
 
 	return 0;
 
@@ -322,8 +318,7 @@ int nfc_genl_device_added(struct nfc_dev *dev)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(&nfc_genl_family, msg, 0,
-			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0, 0, GFP_KERNEL);
 
 	return 0;
 
@@ -353,8 +348,7 @@ int nfc_genl_device_removed(struct nfc_dev *dev)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(&nfc_genl_family, msg, 0,
-			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0, 0, GFP_KERNEL);
 
 	return 0;
 
@@ -420,8 +414,7 @@ int nfc_genl_llc_send_sdres(struct nfc_dev *dev, struct hlist_head *sdres_list)
 
 	genlmsg_end(msg, hdr);
 
-	return genlmsg_multicast(&nfc_genl_family, msg, 0,
-				 nfc_genl_event_mcgrp.id, GFP_ATOMIC);
+	return genlmsg_multicast(&nfc_genl_family, msg, 0, 0, GFP_ATOMIC);
 
 nla_put_failure:
 	genlmsg_cancel(msg, hdr);
@@ -455,8 +448,7 @@ int nfc_genl_se_added(struct nfc_dev *dev, u32 se_idx, u16 type)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(&nfc_genl_family, msg, 0,
-			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0, 0, GFP_KERNEL);
 
 	return 0;
 
@@ -487,8 +479,7 @@ int nfc_genl_se_removed(struct nfc_dev *dev, u32 se_idx)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(&nfc_genl_family, msg, 0,
-			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0, 0, GFP_KERNEL);
 
 	return 0;
 
@@ -609,8 +600,7 @@ int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx,
 
 	dev->dep_link_up = true;
 
-	genlmsg_multicast(&nfc_genl_family, msg, 0,
-			  nfc_genl_event_mcgrp.id, GFP_ATOMIC);
+	genlmsg_multicast(&nfc_genl_family, msg, 0, 0, GFP_ATOMIC);
 
 	return 0;
 
@@ -642,8 +632,7 @@ int nfc_genl_dep_link_down_event(struct nfc_dev *dev)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(&nfc_genl_family, msg, 0,
-			  nfc_genl_event_mcgrp.id, GFP_ATOMIC);
+	genlmsg_multicast(&nfc_genl_family, msg, 0, 0, GFP_ATOMIC);
 
 	return 0;
 
@@ -1148,8 +1137,7 @@ int nfc_genl_fw_download_done(struct nfc_dev *dev, const char *firmware_name,
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(&nfc_genl_family, msg, 0,
-			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0, 0, GFP_KERNEL);
 
 	return 0;
 
@@ -1320,8 +1308,7 @@ static void se_io_cb(void *context, u8 *apdu, size_t apdu_len, int err)
 
 	genlmsg_end(msg, hdr);
 
-	genlmsg_multicast(&nfc_genl_family, msg, 0,
-			  nfc_genl_event_mcgrp.id, GFP_KERNEL);
+	genlmsg_multicast(&nfc_genl_family, msg, 0, 0, GFP_KERNEL);
 
 	kfree(ctx);
 
@@ -1549,15 +1536,15 @@ int __init nfc_genl_init(void)
 {
 	int rc;
 
-	rc = genl_register_family_with_ops(&nfc_genl_family, nfc_genl_ops);
+	rc = genl_register_family_with_ops_groups(&nfc_genl_family,
+						  nfc_genl_ops,
+						  nfc_genl_mcgrps);
 	if (rc)
 		return rc;
 
-	rc = genl_register_mc_group(&nfc_genl_family, &nfc_genl_event_mcgrp);
-
 	netlink_register_notifier(&nl_notifier);
 
-	return rc;
+	return 0;
 }
 
 /**
diff --git a/net/openvswitch/datapath.c b/net/openvswitch/datapath.c
index 5c19846b1d2a..1de4d281e3f1 100644
--- a/net/openvswitch/datapath.c
+++ b/net/openvswitch/datapath.c
@@ -62,11 +62,10 @@
 int ovs_net_id __read_mostly;
 
 static void ovs_notify(struct genl_family *family,
-		       struct sk_buff *skb, struct genl_info *info,
-		       struct genl_multicast_group *grp)
+		       struct sk_buff *skb, struct genl_info *info)
 {
 	genl_notify(family, skb, genl_info_net(info), info->snd_portid,
-		    grp->id, info->nlhdr, GFP_KERNEL);
+		    0, info->nlhdr, GFP_KERNEL);
 }
 
 /**
@@ -878,11 +877,10 @@ static int ovs_flow_cmd_new_or_set(struct sk_buff *skb, struct genl_info *info)
 	ovs_unlock();
 
 	if (!IS_ERR(reply))
-		ovs_notify(&dp_flow_genl_family, reply, info,
-			   &ovs_dp_flow_multicast_group);
+		ovs_notify(&dp_flow_genl_family, reply, info);
 	else
 		genl_set_err(&dp_flow_genl_family, sock_net(skb->sk), 0,
-			     ovs_dp_flow_multicast_group.id, PTR_ERR(reply));
+			     0, PTR_ERR(reply));
 	return 0;
 
 err_flow_free:
@@ -992,8 +990,7 @@ static int ovs_flow_cmd_del(struct sk_buff *skb, struct genl_info *info)
 	ovs_flow_free(flow, true);
 	ovs_unlock();
 
-	ovs_notify(&dp_flow_genl_family, reply, info,
-		   &ovs_dp_flow_multicast_group);
+	ovs_notify(&dp_flow_genl_family, reply, info);
 	return 0;
 unlock:
 	ovs_unlock();
@@ -1240,8 +1237,7 @@ static int ovs_dp_cmd_new(struct sk_buff *skb, struct genl_info *info)
 
 	ovs_unlock();
 
-	ovs_notify(&dp_datapath_genl_family, reply, info,
-		   &ovs_dp_datapath_multicast_group);
+	ovs_notify(&dp_datapath_genl_family, reply, info);
 	return 0;
 
 err_destroy_local_port:
@@ -1306,8 +1302,7 @@ static int ovs_dp_cmd_del(struct sk_buff *skb, struct genl_info *info)
 	__dp_destroy(dp);
 	ovs_unlock();
 
-	ovs_notify(&dp_datapath_genl_family, reply, info,
-		   &ovs_dp_datapath_multicast_group);
+	ovs_notify(&dp_datapath_genl_family, reply, info);
 
 	return 0;
 unlock:
@@ -1332,14 +1327,13 @@ static int ovs_dp_cmd_set(struct sk_buff *skb, struct genl_info *info)
 	if (IS_ERR(reply)) {
 		err = PTR_ERR(reply);
 		genl_set_err(&dp_datapath_genl_family, sock_net(skb->sk), 0,
-			     ovs_dp_datapath_multicast_group.id, err);
+			     0, err);
 		err = 0;
 		goto unlock;
 	}
 
 	ovs_unlock();
-	ovs_notify(&dp_datapath_genl_family, reply, info,
-		   &ovs_dp_datapath_multicast_group);
+	ovs_notify(&dp_datapath_genl_family, reply, info);
 
 	return 0;
 unlock:
@@ -1601,8 +1595,7 @@ static int ovs_vport_cmd_new(struct sk_buff *skb, struct genl_info *info)
 		goto exit_unlock;
 	}
 
-	ovs_notify(&dp_vport_genl_family, reply, info,
-		   &ovs_dp_vport_multicast_group);
+	ovs_notify(&dp_vport_genl_family, reply, info);
 
 exit_unlock:
 	ovs_unlock();
@@ -1649,8 +1642,7 @@ static int ovs_vport_cmd_set(struct sk_buff *skb, struct genl_info *info)
 	BUG_ON(err < 0);
 
 	ovs_unlock();
-	ovs_notify(&dp_vport_genl_family, reply, info,
-		   &ovs_dp_vport_multicast_group);
+	ovs_notify(&dp_vport_genl_family, reply, info);
 	return 0;
 
 exit_free:
@@ -1687,8 +1679,7 @@ static int ovs_vport_cmd_del(struct sk_buff *skb, struct genl_info *info)
 	err = 0;
 	ovs_dp_detach_port(vport);
 
-	ovs_notify(&dp_vport_genl_family, reply, info,
-		   &ovs_dp_vport_multicast_group);
+	ovs_notify(&dp_vport_genl_family, reply, info);
 
 exit_unlock:
 	ovs_unlock();
@@ -1790,7 +1781,7 @@ struct genl_family_and_ops {
 	struct genl_family *family;
 	const struct genl_ops *ops;
 	int n_ops;
-	struct genl_multicast_group *group;
+	const struct genl_multicast_group *group;
 };
 
 static const struct genl_family_and_ops dp_genl_families[] = {
@@ -1828,16 +1819,12 @@ static int dp_register_genl(void)
 
 		f->family->ops = f->ops;
 		f->family->n_ops = f->n_ops;
+		f->family->mcgrps = f->group;
+		f->family->n_mcgrps = f->group ? 1 : 0;
 		err = genl_register_family(f->family);
 		if (err)
 			goto error;
 		n_registered++;
-
-		if (f->group) {
-			err = genl_register_mc_group(f->family, f->group);
-			if (err)
-				goto error;
-		}
 	}
 
 	return 0;
diff --git a/net/openvswitch/dp_notify.c b/net/openvswitch/dp_notify.c
index f4b66c84ea0b..2c631fe76be1 100644
--- a/net/openvswitch/dp_notify.c
+++ b/net/openvswitch/dp_notify.c
@@ -35,15 +35,13 @@ static void dp_detach_port_notify(struct vport *vport)
 	ovs_dp_detach_port(vport);
 	if (IS_ERR(notify)) {
 		genl_set_err(&dp_vport_genl_family, ovs_dp_get_net(dp), 0,
-			     ovs_dp_vport_multicast_group.id,
-			     PTR_ERR(notify));
+			     0, PTR_ERR(notify));
 		return;
 	}
 
 	genlmsg_multicast_netns(&dp_vport_genl_family,
 				ovs_dp_get_net(dp), notify, 0,
-				ovs_dp_vport_multicast_group.id,
-				GFP_KERNEL);
+				0, GFP_KERNEL);
 }
 
 void ovs_dp_notify_wq(struct work_struct *work)
diff --git a/net/wimax/op-msg.c b/net/wimax/op-msg.c
index f37dd3c5576d..c278b3356f75 100644
--- a/net/wimax/op-msg.c
+++ b/net/wimax/op-msg.c
@@ -279,8 +279,7 @@ int wimax_msg_send(struct wimax_dev *wimax_dev, struct sk_buff *skb)
 
 	d_printf(1, dev, "CTX: wimax msg, %zu bytes\n", size);
 	d_dump(2, dev, msg, size);
-	genlmsg_multicast(&wimax_gnl_family, skb, 0,
-			  wimax_gnl_mcg.id, GFP_KERNEL);
+	genlmsg_multicast(&wimax_gnl_family, skb, 0, 0, GFP_KERNEL);
 	d_printf(1, dev, "CTX: genl multicast done\n");
 	return 0;
 }
diff --git a/net/wimax/stack.c b/net/wimax/stack.c
index 18888748e699..ef2191b969a7 100644
--- a/net/wimax/stack.c
+++ b/net/wimax/stack.c
@@ -116,8 +116,9 @@ struct sk_buff *wimax_gnl_re_state_change_alloc(
 		dev_err(dev, "RE_STCH: can't create message\n");
 		goto error_new;
 	}
-	data = genlmsg_put(report_skb, 0, wimax_gnl_mcg.id, &wimax_gnl_family,
-			   0, WIMAX_GNL_RE_STATE_CHANGE);
+	/* FIXME: sending a group ID as the seq is wrong */
+	data = genlmsg_put(report_skb, 0, wimax_gnl_family.mcgrp_offset,
+			   &wimax_gnl_family, 0, WIMAX_GNL_RE_STATE_CHANGE);
 	if (data == NULL) {
 		dev_err(dev, "RE_STCH: can't put data into message\n");
 		goto error_put;
@@ -177,8 +178,7 @@ int wimax_gnl_re_state_change_send(
 		goto out;
 	}
 	genlmsg_end(report_skb, header);
-	genlmsg_multicast(&wimax_gnl_family, report_skb, 0,
-			  wimax_gnl_mcg.id, GFP_KERNEL);
+	genlmsg_multicast(&wimax_gnl_family, report_skb, 0, 0, GFP_KERNEL);
 out:
 	d_fnend(3, dev, "(wimax_dev %p report_skb %p) = %d\n",
 		wimax_dev, report_skb, result);
@@ -580,8 +580,8 @@ struct genl_family wimax_gnl_family = {
 	.maxattr = WIMAX_GNL_ATTR_MAX,
 };
 
-struct genl_multicast_group wimax_gnl_mcg = {
-	.name = "msg",
+static const struct genl_multicast_group wimax_gnl_mcgrps[] = {
+	{ .name = "msg", },
 };
 
 
@@ -598,21 +598,18 @@ int __init wimax_subsys_init(void)
 
 	snprintf(wimax_gnl_family.name, sizeof(wimax_gnl_family.name),
 		 "WiMAX");
-	result = genl_register_family_with_ops(&wimax_gnl_family,
-					       wimax_gnl_ops);
+	result = genl_register_family_with_ops_groups(&wimax_gnl_family,
+						      wimax_gnl_ops,
+						      wimax_gnl_mcgrps);
 	if (unlikely(result < 0)) {
 		printk(KERN_ERR "cannot register generic netlink family: %d\n",
 		       result);
 		goto error_register_family;
 	}
 
-	result = genl_register_mc_group(&wimax_gnl_family, &wimax_gnl_mcg);
-	if (result < 0)
-		goto error_mc_group;
 	d_fnend(4, NULL, "() = 0\n");
 	return 0;
 
-error_mc_group:
 	genl_unregister_family(&wimax_gnl_family);
 error_register_family:
 	d_fnend(4, NULL, "() = %d\n", result);
diff --git a/net/wimax/wimax-internal.h b/net/wimax/wimax-internal.h
index 8567d3079a83..b445b82020a8 100644
--- a/net/wimax/wimax-internal.h
+++ b/net/wimax/wimax-internal.h
@@ -86,7 +86,6 @@ void wimax_rfkill_rm(struct wimax_dev *);
 
 /* generic netlink */
 extern struct genl_family wimax_gnl_family;
-extern struct genl_multicast_group wimax_gnl_mcg;
 
 /* ops */
 int wimax_gnl_doit_msg_from_user(struct sk_buff *skb, struct genl_info *info);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index f20edfd2e1f0..a1eb21073176 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -47,6 +47,25 @@ static struct genl_family nl80211_fam = {
 	.post_doit = nl80211_post_doit,
 };
 
+/* multicast groups */
+enum nl80211_multicast_groups {
+	NL80211_MCGRP_CONFIG,
+	NL80211_MCGRP_SCAN,
+	NL80211_MCGRP_REGULATORY,
+	NL80211_MCGRP_MLME,
+	NL80211_MCGRP_TESTMODE /* keep last - ifdef! */
+};
+
+static const struct genl_multicast_group nl80211_mcgrps[] = {
+	[NL80211_MCGRP_CONFIG] = { .name = "config", },
+	[NL80211_MCGRP_SCAN] = { .name = "scan", },
+	[NL80211_MCGRP_REGULATORY] = { .name = "regulatory", },
+	[NL80211_MCGRP_MLME] = { .name = "mlme", },
+#ifdef CONFIG_NL80211_TESTMODE
+	[NL80211_MCGRP_TESTMODE] = { .name = "testmode", }
+#endif
+};
+
 /* returns ERR_PTR values */
 static struct wireless_dev *
 __cfg80211_wdev_from_attrs(struct net *netns, struct nlattr **attrs)
@@ -6656,10 +6675,6 @@ static int nl80211_set_mcast_rate(struct sk_buff *skb, struct genl_info *info)
 
 
 #ifdef CONFIG_NL80211_TESTMODE
-static struct genl_multicast_group nl80211_testmode_mcgrp = {
-	.name = "testmode",
-};
-
 static int nl80211_testmode_do(struct sk_buff *skb, struct genl_info *info)
 {
 	struct cfg80211_registered_device *rdev = info->user_ptr[0];
@@ -6869,7 +6884,7 @@ void cfg80211_testmode_event(struct sk_buff *skb, gfp_t gfp)
 	nla_nest_end(skb, data);
 	genlmsg_end(skb, hdr);
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), skb, 0,
-				nl80211_testmode_mcgrp.id, gfp);
+				NL80211_MCGRP_TESTMODE, gfp);
 }
 EXPORT_SYMBOL(cfg80211_testmode_event);
 #endif
@@ -9566,21 +9581,6 @@ static const struct genl_ops nl80211_ops[] = {
 	},
 };
 
-static struct genl_multicast_group nl80211_mlme_mcgrp = {
-	.name = "mlme",
-};
-
-/* multicast groups */
-static struct genl_multicast_group nl80211_config_mcgrp = {
-	.name = "config",
-};
-static struct genl_multicast_group nl80211_scan_mcgrp = {
-	.name = "scan",
-};
-static struct genl_multicast_group nl80211_regulatory_mcgrp = {
-	.name = "regulatory",
-};
-
 /* notification functions */
 
 void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
@@ -9598,7 +9598,7 @@ void nl80211_notify_dev_rename(struct cfg80211_registered_device *rdev)
 	}
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_config_mcgrp.id, GFP_KERNEL);
+				NL80211_MCGRP_CONFIG, GFP_KERNEL);
 }
 
 static int nl80211_add_scan_req(struct sk_buff *msg,
@@ -9708,7 +9708,7 @@ void nl80211_send_scan_start(struct cfg80211_registered_device *rdev,
 	}
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_scan_mcgrp.id, GFP_KERNEL);
+				NL80211_MCGRP_SCAN, GFP_KERNEL);
 }
 
 void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
@@ -9727,7 +9727,7 @@ void nl80211_send_scan_done(struct cfg80211_registered_device *rdev,
 	}
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_scan_mcgrp.id, GFP_KERNEL);
+				NL80211_MCGRP_SCAN, GFP_KERNEL);
 }
 
 void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
@@ -9746,7 +9746,7 @@ void nl80211_send_scan_aborted(struct cfg80211_registered_device *rdev,
 	}
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_scan_mcgrp.id, GFP_KERNEL);
+				NL80211_MCGRP_SCAN, GFP_KERNEL);
 }
 
 void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
@@ -9765,7 +9765,7 @@ void nl80211_send_sched_scan_results(struct cfg80211_registered_device *rdev,
 	}
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_scan_mcgrp.id, GFP_KERNEL);
+				NL80211_MCGRP_SCAN, GFP_KERNEL);
 }
 
 void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
@@ -9783,7 +9783,7 @@ void nl80211_send_sched_scan(struct cfg80211_registered_device *rdev,
 	}
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_scan_mcgrp.id, GFP_KERNEL);
+				NL80211_MCGRP_SCAN, GFP_KERNEL);
 }
 
 /*
@@ -9838,7 +9838,7 @@ void nl80211_send_reg_change_event(struct regulatory_request *request)
 
 	rcu_read_lock();
 	genlmsg_multicast_allns(&nl80211_fam, msg, 0,
-				nl80211_regulatory_mcgrp.id, GFP_ATOMIC);
+				NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
 	rcu_read_unlock();
 
 	return;
@@ -9874,7 +9874,7 @@ static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  nla_put_failure:
@@ -9962,7 +9962,7 @@ static void nl80211_send_mlme_timeout(struct cfg80211_registered_device *rdev,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  nla_put_failure:
@@ -10018,7 +10018,7 @@ void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  nla_put_failure:
@@ -10057,7 +10057,7 @@ void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  nla_put_failure:
@@ -10095,7 +10095,7 @@ void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, GFP_KERNEL);
+				NL80211_MCGRP_MLME, GFP_KERNEL);
 	return;
 
  nla_put_failure:
@@ -10129,7 +10129,7 @@ void nl80211_send_ibss_bssid(struct cfg80211_registered_device *rdev,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  nla_put_failure:
@@ -10170,7 +10170,7 @@ void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  nla_put_failure:
@@ -10209,7 +10209,7 @@ void nl80211_michael_mic_failure(struct cfg80211_registered_device *rdev,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  nla_put_failure:
@@ -10262,7 +10262,7 @@ void nl80211_send_beacon_hint_event(struct wiphy *wiphy,
 
 	rcu_read_lock();
 	genlmsg_multicast_allns(&nl80211_fam, msg, 0,
-				nl80211_regulatory_mcgrp.id, GFP_ATOMIC);
+				NL80211_MCGRP_REGULATORY, GFP_ATOMIC);
 	rcu_read_unlock();
 
 	return;
@@ -10308,7 +10308,7 @@ static void nl80211_send_remain_on_chan_event(
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  nla_put_failure:
@@ -10363,7 +10363,7 @@ void cfg80211_new_sta(struct net_device *dev, const u8 *mac_addr,
 	}
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 }
 EXPORT_SYMBOL(cfg80211_new_sta);
 
@@ -10393,7 +10393,7 @@ void cfg80211_del_sta(struct net_device *dev, const u8 *mac_addr, gfp_t gfp)
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  nla_put_failure:
@@ -10429,7 +10429,7 @@ void cfg80211_conn_failed(struct net_device *dev, const u8 *mac_addr,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  nla_put_failure:
@@ -10591,7 +10591,7 @@ void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  nla_put_failure:
@@ -10640,7 +10640,7 @@ void cfg80211_cqm_rssi_notify(struct net_device *dev,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  nla_put_failure:
@@ -10685,7 +10685,7 @@ static void nl80211_gtk_rekey_notify(struct cfg80211_registered_device *rdev,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  nla_put_failure:
@@ -10743,7 +10743,7 @@ nl80211_pmksa_candidate_notify(struct cfg80211_registered_device *rdev,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  nla_put_failure:
@@ -10790,7 +10790,7 @@ static void nl80211_ch_switch_notify(struct cfg80211_registered_device *rdev,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  nla_put_failure:
@@ -10867,7 +10867,7 @@ void cfg80211_cqm_txe_notify(struct net_device *dev,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  nla_put_failure:
@@ -10916,7 +10916,7 @@ nl80211_radar_notify(struct cfg80211_registered_device *rdev,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  nla_put_failure:
@@ -10963,7 +10963,7 @@ void cfg80211_cqm_pktloss_notify(struct net_device *dev,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  nla_put_failure:
@@ -11003,7 +11003,7 @@ void cfg80211_probe_status(struct net_device *dev, const u8 *addr,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  nla_put_failure:
@@ -11155,7 +11155,7 @@ void cfg80211_report_wowlan_wakeup(struct wireless_dev *wdev,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  free_msg:
@@ -11197,7 +11197,7 @@ void cfg80211_tdls_oper_request(struct net_device *dev, const u8 *peer,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, gfp);
+				NL80211_MCGRP_MLME, gfp);
 	return;
 
  nla_put_failure:
@@ -11280,7 +11280,7 @@ void cfg80211_ft_event(struct net_device *netdev,
 	genlmsg_end(msg, hdr);
 
 	genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy), msg, 0,
-				nl80211_mlme_mcgrp.id, GFP_KERNEL);
+				NL80211_MCGRP_MLME, GFP_KERNEL);
 }
 EXPORT_SYMBOL(cfg80211_ft_event);
 
@@ -11329,32 +11329,11 @@ int nl80211_init(void)
 {
 	int err;
 
-	err = genl_register_family_with_ops(&nl80211_fam, nl80211_ops);
+	err = genl_register_family_with_ops_groups(&nl80211_fam, nl80211_ops,
+						   nl80211_mcgrps);
 	if (err)
 		return err;
 
-	err = genl_register_mc_group(&nl80211_fam, &nl80211_config_mcgrp);
-	if (err)
-		goto err_out;
-
-	err = genl_register_mc_group(&nl80211_fam, &nl80211_scan_mcgrp);
-	if (err)
-		goto err_out;
-
-	err = genl_register_mc_group(&nl80211_fam, &nl80211_regulatory_mcgrp);
-	if (err)
-		goto err_out;
-
-	err = genl_register_mc_group(&nl80211_fam, &nl80211_mlme_mcgrp);
-	if (err)
-		goto err_out;
-
-#ifdef CONFIG_NL80211_TESTMODE
-	err = genl_register_mc_group(&nl80211_fam, &nl80211_testmode_mcgrp);
-	if (err)
-		goto err_out;
-#endif
-
 	err = netlink_register_notifier(&nl80211_netlink_notifier);
 	if (err)
 		goto err_out;
-- 
cgit 


From 24b9fdc59ac365e7e313e5af44c7bfe31c15c774 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Mon, 18 Nov 2013 10:47:27 +0200
Subject: kernel/bounds: avoid circular dependencies in generated headers

<linux/spinlock.h> has heavy dependencies on other header files.
It triggers circular dependencies in generated headers on IA64, at
least:

  CC      kernel/bounds.s
In file included from /home/space/kas/git/public/linux/arch/ia64/include/asm/thread_info.h:9:0,
                 from include/linux/thread_info.h:54,
                 from include/asm-generic/preempt.h:4,
                 from arch/ia64/include/generated/asm/preempt.h:1,
                 from include/linux/preempt.h:18,
                 from include/linux/spinlock.h:50,
                 from kernel/bounds.c:14:
/home/space/kas/git/public/linux/arch/ia64/include/asm/asm-offsets.h:1:35: fatal error: generated/asm-offsets.h: No such file or directory
compilation terminated.

Let's replace <linux/spinlock.h> with <linux/spinlock_types.h>, it's
enough to find out size of spinlock_t.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-and-Tested-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
---
 kernel/bounds.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/bounds.c b/kernel/bounds.c
index 578782ef6ae1..5253204afdca 100644
--- a/kernel/bounds.c
+++ b/kernel/bounds.c
@@ -11,7 +11,7 @@
 #include <linux/kbuild.h>
 #include <linux/page_cgroup.h>
 #include <linux/log2.h>
-#include <linux/spinlock.h>
+#include <linux/spinlock_types.h>
 
 void foo(void)
 {
-- 
cgit 


From a0ffa8f06f77a6197405521324501614d281bee1 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Tue, 19 Nov 2013 23:31:35 +0100
Subject: Revert "parisc: implement full version of access_ok()"

This reverts commit 63379c135331c724d40a87b98eb62d2122981341.

It broke userspace and adding more checking is not needed.
Even checking if a syscall would access memory in page zero doesn't
makes sense since it may lead to some syscalls returning -EFAULT
where we would return other error codes on other platforms.
In summary, just drop this change and return to always return 1.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/include/asm/uaccess.h | 46 ++++-----------------------------------
 1 file changed, 4 insertions(+), 42 deletions(-)

diff --git a/arch/parisc/include/asm/uaccess.h b/arch/parisc/include/asm/uaccess.h
index 63f4dd0b49c2..4006964d8e12 100644
--- a/arch/parisc/include/asm/uaccess.h
+++ b/arch/parisc/include/asm/uaccess.h
@@ -4,14 +4,11 @@
 /*
  * User space memory access functions
  */
-#include <asm/processor.h>
 #include <asm/page.h>
 #include <asm/cache.h>
 #include <asm/errno.h>
 #include <asm-generic/uaccess-unaligned.h>
 
-#include <linux/sched.h>
-
 #define VERIFY_READ 0
 #define VERIFY_WRITE 1
 
@@ -36,43 +33,12 @@ extern int __get_user_bad(void);
 extern int __put_kernel_bad(void);
 extern int __put_user_bad(void);
 
-
-/*
- * Test whether a block of memory is a valid user space address.
- * Returns 0 if the range is valid, nonzero otherwise.
- */
-static inline int __range_not_ok(unsigned long addr, unsigned long size,
-				 unsigned long limit)
+static inline long access_ok(int type, const void __user * addr,
+		unsigned long size)
 {
-	unsigned long __newaddr = addr + size;
-	return (__newaddr < addr || __newaddr > limit || size > limit);
+	return 1;
 }
 
-/**
- * access_ok: - Checks if a user space pointer is valid
- * @type: Type of access: %VERIFY_READ or %VERIFY_WRITE.  Note that
- *        %VERIFY_WRITE is a superset of %VERIFY_READ - if it is safe
- *        to write to a block, it is always safe to read from it.
- * @addr: User space pointer to start of block to check
- * @size: Size of block to check
- *
- * Context: User context only.  This function may sleep.
- *
- * Checks if a pointer to a block of memory in user space is valid.
- *
- * Returns true (nonzero) if the memory block may be valid, false (zero)
- * if it is definitely invalid.
- *
- * Note that, depending on architecture, this function probably just
- * checks that the pointer is in the user space range - after calling
- * this function, memory access functions may still return -EFAULT.
- */
-#define access_ok(type, addr, size)					\
-(	__chk_user_ptr(addr),						\
-	!__range_not_ok((unsigned long) (__force void *) (addr),	\
-			size, user_addr_max())				\
-)
-
 #define put_user __put_user
 #define get_user __get_user
 
@@ -253,11 +219,7 @@ extern long lstrnlen_user(const char __user *,long);
 /*
  * Complex access routines -- macros
  */
-#ifdef CONFIG_COMPAT
-#define user_addr_max() (TASK_SIZE)
-#else
-#define user_addr_max() (DEFAULT_TASK_SIZE)
-#endif
+#define user_addr_max() (~0UL)
 
 #define strnlen_user lstrnlen_user
 #define strlen_user(str) lstrnlen_user(str, 0x7fffffffL)
-- 
cgit 


From 9af63aedb84c4281cde1610280246f7749c27799 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Sun, 17 Nov 2013 22:03:11 +0100
Subject: parisc: do not inline pa_memcpy() internal functions

gcc (4.8.x) creates wrong code when the pa_memcpy() functions are
inlined.  Especially in 32bit builds it calculates wrong return values
if we encounter a fault during execution of the memcpy.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/lib/memcpy.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index b5507ec06b84..6c5b5d35bfc0 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -161,7 +161,7 @@ static inline void prefetch_dst(const void *addr)
 /* Copy from a not-aligned src to an aligned dst, using shifts. Handles 4 words
  * per loop.  This code is derived from glibc. 
  */
-static inline unsigned long copy_dstaligned(unsigned long dst,
+static noinline unsigned long copy_dstaligned(unsigned long dst,
 					unsigned long src, unsigned long len)
 {
 	/* gcc complains that a2 and a3 may be uninitialized, but actually
@@ -276,7 +276,7 @@ handle_store_error:
 /* Returns PA_MEMCPY_OK, PA_MEMCPY_LOAD_ERROR or PA_MEMCPY_STORE_ERROR.
  * In case of an access fault the faulty address can be read from the per_cpu
  * exception data struct. */
-static unsigned long pa_memcpy_internal(void *dstp, const void *srcp,
+static noinline unsigned long pa_memcpy_internal(void *dstp, const void *srcp,
 					unsigned long len)
 {
 	register unsigned long src, dst, t1, t2, t3;
-- 
cgit 


From 38c7937379276a5ea8c54481205003af2f2b5694 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Mon, 14 Oct 2013 21:04:13 +0200
Subject: parisc: break out SOCK_NONBLOCK define to own asm header file

Break SOCK_NONBLOCK out to its own asm-file as other arches do. This
fixes build errors with auditd and probably other packages.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/include/asm/socket.h      | 11 +++++++++++
 arch/parisc/include/uapi/asm/socket.h | 11 +++--------
 2 files changed, 14 insertions(+), 8 deletions(-)
 create mode 100644 arch/parisc/include/asm/socket.h

diff --git a/arch/parisc/include/asm/socket.h b/arch/parisc/include/asm/socket.h
new file mode 100644
index 000000000000..748016cb122d
--- /dev/null
+++ b/arch/parisc/include/asm/socket.h
@@ -0,0 +1,11 @@
+#ifndef _ASM_SOCKET_H
+#define _ASM_SOCKET_H
+
+#include <uapi/asm/socket.h>
+
+/* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
+ * have to define SOCK_NONBLOCK to a different value here.
+ */
+#define SOCK_NONBLOCK	0x40000000
+
+#endif /* _ASM_SOCKET_H */
diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h
index 7c614d01f1fa..f33113a6141e 100644
--- a/arch/parisc/include/uapi/asm/socket.h
+++ b/arch/parisc/include/uapi/asm/socket.h
@@ -1,5 +1,5 @@
-#ifndef _ASM_SOCKET_H
-#define _ASM_SOCKET_H
+#ifndef _UAPI_ASM_SOCKET_H
+#define _UAPI_ASM_SOCKET_H
 
 #include <asm/sockios.h>
 
@@ -77,9 +77,4 @@
 
 #define SO_MAX_PACING_RATE	0x4048
 
-/* O_NONBLOCK clashes with the bits used for socket types.  Therefore we
- * have to define SOCK_NONBLOCK to a different value here.
- */
-#define SOCK_NONBLOCK   0x40000000
-
-#endif /* _ASM_SOCKET_H */
+#endif /* _UAPI_ASM_SOCKET_H */
-- 
cgit 


From 49d1cb2bcadfc5cea4b700a0ec6b957567889714 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Mon, 18 Nov 2013 22:12:11 +0100
Subject: parisc: improve SIGBUS/SIGSEGV error reporting

This patch fixes most of the Linux Test Project testcases, e.g. fstat05.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/mm/fault.c | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index 7584a5df0fa4..9d08c71a967e 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -282,16 +282,34 @@ bad_area:
 #endif
 		switch (code) {
 		case 15:	/* Data TLB miss fault/Data page fault */
+			/* send SIGSEGV when outside of vma */
+			if (!vma ||
+			    address < vma->vm_start || address > vma->vm_end) {
+				si.si_signo = SIGSEGV;
+				si.si_code = SEGV_MAPERR;
+				break;
+			}
+
+			/* send SIGSEGV for wrong permissions */
+			if ((vma->vm_flags & acc_type) != acc_type) {
+				si.si_signo = SIGSEGV;
+				si.si_code = SEGV_ACCERR;
+				break;
+			}
+
+			/* probably address is outside of mapped file */
+			/* fall through */
 		case 17:	/* NA data TLB miss / page fault */
 		case 18:	/* Unaligned access - PCXS only */
 			si.si_signo = SIGBUS;
-			si.si_code = BUS_ADRERR;
+			si.si_code = (code == 18) ? BUS_ADRALN : BUS_ADRERR;
 			break;
 		case 16:	/* Non-access instruction TLB miss fault */
 		case 26:	/* PCXL: Data memory access rights trap */
 		default:
 			si.si_signo = SIGSEGV;
-			si.si_code = SEGV_MAPERR;
+			si.si_code = (code == 26) ? SEGV_ACCERR : SEGV_MAPERR;
+			break;
 		}
 		si.si_errno = 0;
 		si.si_addr = (void __user *) address;
-- 
cgit 


From d558023207e008a4476a3b7bb8706b2a2bf5d84f Mon Sep 17 00:00:00 2001
From: Sasha Levin <sasha.levin@oracle.com>
Date: Tue, 19 Nov 2013 17:33:02 -0500
Subject: aio: prevent double free in ioctx_alloc

ioctx_alloc() calls aio_setup_ring() to allocate a ring. If aio_setup_ring()
fails to do so it would call aio_free_ring() before returning, but
ioctx_alloc() would call aio_free_ring() again causing a double free of
the ring.

This is easily reproducible from userspace.

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
---
 fs/aio.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/fs/aio.c b/fs/aio.c
index ee77dc13d5b2..63135331cec2 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -610,7 +610,6 @@ static struct kioctx *ioctx_alloc(unsigned nr_events)
 err_cleanup:
 	aio_nr_sub(ctx->max_reqs);
 err:
-	aio_free_ring(ctx);
 	free_percpu(ctx->cpu);
 	free_percpu(ctx->reqs.pcpu_count);
 	free_percpu(ctx->users.pcpu_count);
-- 
cgit 


From ddb8c45ba15149ebd41d7586261c05f7ca37f9a1 Mon Sep 17 00:00:00 2001
From: Sasha Levin <sasha.levin@oracle.com>
Date: Tue, 19 Nov 2013 17:33:03 -0500
Subject: aio: nullify aio->ring_pages after freeing it

After freeing ring_pages we leave it as is causing a dangling pointer. This
has already caused an issue so to help catching any issues in the future
NULL it out.

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
---
 fs/aio.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/aio.c b/fs/aio.c
index 63135331cec2..ad460d78d6c5 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -196,8 +196,10 @@ static void aio_free_ring(struct kioctx *ctx)
 
 	put_aio_ring_file(ctx);
 
-	if (ctx->ring_pages && ctx->ring_pages != ctx->internal_pages)
+	if (ctx->ring_pages && ctx->ring_pages != ctx->internal_pages) {
 		kfree(ctx->ring_pages);
+		ctx->ring_pages = NULL;
+	}
 }
 
 static int aio_ring_mmap(struct file *file, struct vm_area_struct *vma)
-- 
cgit 


From 365da4adebb1c012febf81019ad3dc5bb52e2a13 Mon Sep 17 00:00:00 2001
From: "J. Bruce Fields" <bfields@redhat.com>
Date: Tue, 19 Nov 2013 17:32:43 -0500
Subject: nfsd4: fix xdr decoding of large non-write compounds

This fixes a regression from 247500820ebd02ad87525db5d9b199e5b66f6636
"nfsd4: fix decoding of compounds across page boundaries".  The previous
code was correct: argp->pagelist is initialized in
nfs4svc_deocde_compoundargs to rqstp->rq_arg.pages, and is therefore a
pointer to the page *after* the page we are currently decoding.

The reason that patch nevertheless fixed a problem with decoding
compounds containing write was a bug in the write decoding introduced by
5a80a54d21c96590d013378d8c5f65f879451ab4 "nfsd4: reorganize write
decoding", after which write decoding no longer adhered to the rule that
argp->pagelist point to the next page.

Cc: stable@vger.kernel.org
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---
 fs/nfsd/nfs4xdr.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 088de1355e93..ee7237f99f54 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -141,8 +141,8 @@ xdr_error:					\
 
 static void next_decode_page(struct nfsd4_compoundargs *argp)
 {
-	argp->pagelist++;
 	argp->p = page_address(argp->pagelist[0]);
+	argp->pagelist++;
 	if (argp->pagelen < PAGE_SIZE) {
 		argp->end = argp->p + (argp->pagelen>>2);
 		argp->pagelen = 0;
@@ -1229,6 +1229,7 @@ nfsd4_decode_write(struct nfsd4_compoundargs *argp, struct nfsd4_write *write)
 		len -= pages * PAGE_SIZE;
 
 		argp->p = (__be32 *)page_address(argp->pagelist[0]);
+		argp->pagelist++;
 		argp->end = argp->p + XDR_QUADLEN(PAGE_SIZE);
 	}
 	argp->p += XDR_QUADLEN(len);
-- 
cgit 


From 964f413323e8306ac0acb5e08ccdb5f12418835b Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Tue, 12 Nov 2013 21:01:24 +0100
Subject: parisc: size_t is unsigned, so comparison size < 0 doesn't make
 sense.

Signed-off-by: Helge Deller <deller@gmx.de>
CC: Mikulas Patocka <mpatocka@redhat.com>
---
 arch/parisc/lib/memcpy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index 6c5b5d35bfc0..413dc1769299 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -529,7 +529,7 @@ long probe_kernel_read(void *dst, const void *src, size_t size)
 {
 	unsigned long addr = (unsigned long)src;
 
-	if (size < 0 || addr < PAGE_SIZE)
+	if (addr < PAGE_SIZE)
 		return -EFAULT;
 
 	/* check for I/O space F_EXTEND(0xfff00000) access as well? */
-- 
cgit 


From b4789b8e6be3151a955ade74872822f30e8cd914 Mon Sep 17 00:00:00 2001
From: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
Date: Thu, 31 Oct 2013 14:01:02 +0530
Subject: aacraid: prevent invalid pointer dereference

It appears that driver runs into a problem here if fibsize is too small
because we allocate user_srbcmd with fibsize size only but later we
access it until user_srbcmd->sg.count to copy it over to srbcmd.

It is not correct to test (fibsize < sizeof(*user_srbcmd)) because this
structure already includes one sg element and this is not needed for
commands without data.  So, we would recommend to add the following
(instead of test for fibsize == 0).

Signed-off-by: Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>
Reported-by: Nico Golde <nico@ngolde.de>
Reported-by: Fabian Yamaguchi <fabs@goesec.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/scsi/aacraid/commctrl.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c
index d85ac1a9d2c0..fbcd48d0bfc3 100644
--- a/drivers/scsi/aacraid/commctrl.c
+++ b/drivers/scsi/aacraid/commctrl.c
@@ -511,7 +511,8 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg)
 		goto cleanup;
 	}
 
-	if (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr))) {
+	if ((fibsize < (sizeof(struct user_aac_srb) - sizeof(struct user_sgentry))) ||
+	    (fibsize > (dev->max_fib_size - sizeof(struct aac_fibhdr)))) {
 		rcode = -EINVAL;
 		goto cleanup;
 	}
-- 
cgit 


From f02b9ac35a47dff745c7637fbc095f01cc03646e Mon Sep 17 00:00:00 2001
From: Shaohua Li <shli@fusionio.com>
Date: Tue, 19 Nov 2013 18:57:24 -0700
Subject: virtio-blk: virtqueue_kick() must be ordered with other virtqueue
 operations

It isn't safe to call it without holding the vblk->vq_lock.

Reported-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Shaohua Li <shli@fusionio.com>

Fixed another condition of virtqueue_kick() not holding the lock.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 drivers/block/virtio_blk.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 588479d58f52..6a680d4de7f1 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -199,15 +199,16 @@ static int virtio_queue_rq(struct blk_mq_hw_ctx *hctx, struct request *req)
 
 	spin_lock_irqsave(&vblk->vq_lock, flags);
 	if (__virtblk_add_req(vblk->vq, vbr, vbr->sg, num) < 0) {
+		virtqueue_kick(vblk->vq);
 		spin_unlock_irqrestore(&vblk->vq_lock, flags);
 		blk_mq_stop_hw_queue(hctx);
-		virtqueue_kick(vblk->vq);
 		return BLK_MQ_RQ_QUEUE_BUSY;
 	}
-	spin_unlock_irqrestore(&vblk->vq_lock, flags);
 
 	if (last)
 		virtqueue_kick(vblk->vq);
+
+	spin_unlock_irqrestore(&vblk->vq_lock, flags);
 	return BLK_MQ_RQ_QUEUE_OK;
 }
 
-- 
cgit 


From 01b983c9fcfeea5774ca2df2e167b68c3c299278 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@kernel.dk>
Date: Tue, 19 Nov 2013 18:59:10 -0700
Subject: blk-mq: add blktrace insert event trace

We need it to make 'btt' from blktrace happy, otherwise
we are missing one state transition.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-mq.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 32593dba4684..cdc629cf075b 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -721,6 +721,8 @@ static void __blk_mq_insert_request(struct blk_mq_hw_ctx *hctx,
 {
 	struct blk_mq_ctx *ctx = rq->mq_ctx;
 
+	trace_block_rq_insert(hctx->queue, rq);
+
 	list_add_tail(&rq->queuelist, &ctx->rq_list);
 	blk_mq_hctx_mark_pending(hctx, ctx);
 
-- 
cgit 


From 9508c6b90b3f57ecea4e7a896cf8325400fc0c6e Mon Sep 17 00:00:00 2001
From: Phillip Lougher <phillip@squashfs.org.uk>
Date: Wed, 13 Nov 2013 02:56:26 +0000
Subject: Squashfs: Refactor decompressor interface and code

The decompressor interface and code was written from
the point of view of single-threaded operation.  In doing
so it mixed a lot of single-threaded implementation specific
aspects into the decompressor code and elsewhere which makes it
difficult to seamlessly support multiple different decompressor
implementations.

This patch does the following:

1.  It removes compressor_options parsing from the decompressor
    init() function.  This allows the decompressor init() function
    to be dynamically called to instantiate multiple decompressors,
    without the compressor options needing to be read and parsed each
    time.

2.  It moves threading and all sleeping operations out of the
    decompressors.  In doing so, it makes the decompressors
    non-blocking wrappers which only deal with interfacing with
    the decompressor implementation.

3. It splits decompressor.[ch] into decompressor generic functions
   in decompressor.[ch], and moves the single threaded
   decompressor implementation into decompressor_single.c.

The result of this patch is Squashfs should now be able to
support multiple decompressors by adding new decompressor_xxx.c
files with specialised implementations of the functions in
decompressor_single.c

Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
Reviewed-by: Minchan Kim <minchan@kernel.org>
---
 fs/squashfs/Makefile              |  2 +-
 fs/squashfs/block.c               | 11 +++--
 fs/squashfs/decompressor.c        | 47 ++++++++++++++-------
 fs/squashfs/decompressor.h        | 21 +++------
 fs/squashfs/decompressor_single.c | 86 +++++++++++++++++++++++++++++++++++++
 fs/squashfs/lzo_wrapper.c         | 24 +++--------
 fs/squashfs/squashfs.h            |  9 +++-
 fs/squashfs/squashfs_fs_sb.h      |  3 +-
 fs/squashfs/super.c               | 10 ++---
 fs/squashfs/xz_wrapper.c          | 89 +++++++++++++++++++++------------------
 fs/squashfs/zlib_wrapper.c        | 50 +++++++---------------
 11 files changed, 216 insertions(+), 136 deletions(-)
 create mode 100644 fs/squashfs/decompressor_single.c

diff --git a/fs/squashfs/Makefile b/fs/squashfs/Makefile
index 110b0476f3b4..c223c8439c21 100644
--- a/fs/squashfs/Makefile
+++ b/fs/squashfs/Makefile
@@ -4,7 +4,7 @@
 
 obj-$(CONFIG_SQUASHFS) += squashfs.o
 squashfs-y += block.o cache.o dir.o export.o file.o fragment.o id.o inode.o
-squashfs-y += namei.o super.o symlink.o decompressor.o
+squashfs-y += namei.o super.o symlink.o decompressor.o decompressor_single.o
 squashfs-$(CONFIG_SQUASHFS_XATTR) += xattr.o xattr_id.o
 squashfs-$(CONFIG_SQUASHFS_LZO) += lzo_wrapper.o
 squashfs-$(CONFIG_SQUASHFS_XZ) += xz_wrapper.o
diff --git a/fs/squashfs/block.c b/fs/squashfs/block.c
index 41d108ecc9be..4dd402597f22 100644
--- a/fs/squashfs/block.c
+++ b/fs/squashfs/block.c
@@ -93,7 +93,7 @@ int squashfs_read_data(struct super_block *sb, void **buffer, u64 index,
 	struct buffer_head **bh;
 	int offset = index & ((1 << msblk->devblksize_log2) - 1);
 	u64 cur_index = index >> msblk->devblksize_log2;
-	int bytes, compressed, b = 0, k = 0, page = 0, avail;
+	int bytes, compressed, b = 0, k = 0, page = 0, avail, i;
 
 	bh = kcalloc(((srclength + msblk->devblksize - 1)
 		>> msblk->devblksize_log2) + 1, sizeof(*bh), GFP_KERNEL);
@@ -158,6 +158,12 @@ int squashfs_read_data(struct super_block *sb, void **buffer, u64 index,
 		ll_rw_block(READ, b - 1, bh + 1);
 	}
 
+	for (i = 0; i < b; i++) {
+		wait_on_buffer(bh[i]);
+		if (!buffer_uptodate(bh[i]))
+			goto block_release;
+	}
+
 	if (compressed) {
 		length = squashfs_decompress(msblk, buffer, bh, b, offset,
 			 length, srclength, pages);
@@ -172,9 +178,6 @@ int squashfs_read_data(struct super_block *sb, void **buffer, u64 index,
 		for (bytes = length; k < b; k++) {
 			in = min(bytes, msblk->devblksize - offset);
 			bytes -= in;
-			wait_on_buffer(bh[k]);
-			if (!buffer_uptodate(bh[k]))
-				goto block_release;
 			while (in) {
 				if (pg_offset == PAGE_CACHE_SIZE) {
 					page++;
diff --git a/fs/squashfs/decompressor.c b/fs/squashfs/decompressor.c
index 3f6271d86abc..234291f79ba5 100644
--- a/fs/squashfs/decompressor.c
+++ b/fs/squashfs/decompressor.c
@@ -37,29 +37,29 @@
  */
 
 static const struct squashfs_decompressor squashfs_lzma_unsupported_comp_ops = {
-	NULL, NULL, NULL, LZMA_COMPRESSION, "lzma", 0
+	NULL, NULL, NULL, NULL, LZMA_COMPRESSION, "lzma", 0
 };
 
 #ifndef CONFIG_SQUASHFS_LZO
 static const struct squashfs_decompressor squashfs_lzo_comp_ops = {
-	NULL, NULL, NULL, LZO_COMPRESSION, "lzo", 0
+	NULL, NULL, NULL, NULL, LZO_COMPRESSION, "lzo", 0
 };
 #endif
 
 #ifndef CONFIG_SQUASHFS_XZ
 static const struct squashfs_decompressor squashfs_xz_comp_ops = {
-	NULL, NULL, NULL, XZ_COMPRESSION, "xz", 0
+	NULL, NULL, NULL, NULL, XZ_COMPRESSION, "xz", 0
 };
 #endif
 
 #ifndef CONFIG_SQUASHFS_ZLIB
 static const struct squashfs_decompressor squashfs_zlib_comp_ops = {
-	NULL, NULL, NULL, ZLIB_COMPRESSION, "zlib", 0
+	NULL, NULL, NULL, NULL, ZLIB_COMPRESSION, "zlib", 0
 };
 #endif
 
 static const struct squashfs_decompressor squashfs_unknown_comp_ops = {
-	NULL, NULL, NULL, 0, "unknown", 0
+	NULL, NULL, NULL, NULL, 0, "unknown", 0
 };
 
 static const struct squashfs_decompressor *decompressor[] = {
@@ -83,10 +83,10 @@ const struct squashfs_decompressor *squashfs_lookup_decompressor(int id)
 }
 
 
-void *squashfs_decompressor_init(struct super_block *sb, unsigned short flags)
+static void *get_comp_opts(struct super_block *sb, unsigned short flags)
 {
 	struct squashfs_sb_info *msblk = sb->s_fs_info;
-	void *strm, *buffer = NULL;
+	void *buffer = NULL, *comp_opts;
 	int length = 0;
 
 	/*
@@ -94,23 +94,40 @@ void *squashfs_decompressor_init(struct super_block *sb, unsigned short flags)
 	 */
 	if (SQUASHFS_COMP_OPTS(flags)) {
 		buffer = kmalloc(PAGE_CACHE_SIZE, GFP_KERNEL);
-		if (buffer == NULL)
-			return ERR_PTR(-ENOMEM);
+		if (buffer == NULL) {
+			comp_opts = ERR_PTR(-ENOMEM);
+			goto out;
+		}
 
 		length = squashfs_read_data(sb, &buffer,
 			sizeof(struct squashfs_super_block), 0, NULL,
-			PAGE_CACHE_SIZE, 1);
+				PAGE_CACHE_SIZE, 1);
 
 		if (length < 0) {
-			strm = ERR_PTR(length);
-			goto finished;
+			comp_opts = ERR_PTR(length);
+			goto out;
 		}
 	}
 
-	strm = msblk->decompressor->init(msblk, buffer, length);
+	comp_opts = squashfs_comp_opts(msblk, buffer, length);
 
-finished:
+out:
 	kfree(buffer);
+	return comp_opts;
+}
+
+
+void *squashfs_decompressor_setup(struct super_block *sb, unsigned short flags)
+{
+	struct squashfs_sb_info *msblk = sb->s_fs_info;
+	void *stream, *comp_opts = get_comp_opts(sb, flags);
+
+	if (IS_ERR(comp_opts))
+		return comp_opts;
+
+	stream = squashfs_decompressor_create(msblk, comp_opts);
+	if (IS_ERR(stream))
+		kfree(comp_opts);
 
-	return strm;
+	return stream;
 }
diff --git a/fs/squashfs/decompressor.h b/fs/squashfs/decompressor.h
index 330073e29029..6cdb20a3878a 100644
--- a/fs/squashfs/decompressor.h
+++ b/fs/squashfs/decompressor.h
@@ -24,28 +24,21 @@
  */
 
 struct squashfs_decompressor {
-	void	*(*init)(struct squashfs_sb_info *, void *, int);
+	void	*(*init)(struct squashfs_sb_info *, void *);
+	void	*(*comp_opts)(struct squashfs_sb_info *, void *, int);
 	void	(*free)(void *);
-	int	(*decompress)(struct squashfs_sb_info *, void **,
+	int	(*decompress)(struct squashfs_sb_info *, void *, void **,
 		struct buffer_head **, int, int, int, int, int);
 	int	id;
 	char	*name;
 	int	supported;
 };
 
-static inline void squashfs_decompressor_free(struct squashfs_sb_info *msblk,
-	void *s)
+static inline void *squashfs_comp_opts(struct squashfs_sb_info *msblk,
+							void *buff, int length)
 {
-	if (msblk->decompressor)
-		msblk->decompressor->free(s);
-}
-
-static inline int squashfs_decompress(struct squashfs_sb_info *msblk,
-	void **buffer, struct buffer_head **bh, int b, int offset, int length,
-	int srclength, int pages)
-{
-	return msblk->decompressor->decompress(msblk, buffer, bh, b, offset,
-		length, srclength, pages);
+	return msblk->decompressor->comp_opts ?
+		msblk->decompressor->comp_opts(msblk, buff, length) : NULL;
 }
 
 #ifdef CONFIG_SQUASHFS_XZ
diff --git a/fs/squashfs/decompressor_single.c b/fs/squashfs/decompressor_single.c
new file mode 100644
index 000000000000..f857cf6f22d4
--- /dev/null
+++ b/fs/squashfs/decompressor_single.c
@@ -0,0 +1,86 @@
+/*
+ * Copyright (c) 2013
+ * Phillip Lougher <phillip@squashfs.org.uk>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ */
+
+#include <linux/types.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/buffer_head.h>
+
+#include "squashfs_fs.h"
+#include "squashfs_fs_sb.h"
+#include "decompressor.h"
+#include "squashfs.h"
+
+/*
+ * This file implements single-threaded decompression in the
+ * decompressor framework
+ */
+
+struct squashfs_stream {
+	void		*stream;
+	struct mutex	mutex;
+};
+
+void *squashfs_decompressor_create(struct squashfs_sb_info *msblk,
+						void *comp_opts)
+{
+	struct squashfs_stream *stream;
+	int err = -ENOMEM;
+
+	stream = kmalloc(sizeof(*stream), GFP_KERNEL);
+	if (stream == NULL)
+		goto out;
+
+	stream->stream = msblk->decompressor->init(msblk, comp_opts);
+	if (IS_ERR(stream->stream)) {
+		err = PTR_ERR(stream->stream);
+		goto out;
+	}
+
+	kfree(comp_opts);
+	mutex_init(&stream->mutex);
+	return stream;
+
+out:
+	kfree(stream);
+	return ERR_PTR(err);
+}
+
+void squashfs_decompressor_destroy(struct squashfs_sb_info *msblk)
+{
+	struct squashfs_stream *stream = msblk->stream;
+
+	if (stream) {
+		msblk->decompressor->free(stream->stream);
+		kfree(stream);
+	}
+}
+
+int squashfs_decompress(struct squashfs_sb_info *msblk,
+	void **buffer, struct buffer_head **bh, int b, int offset, int length,
+	int srclength, int pages)
+{
+	int res;
+	struct squashfs_stream *stream = msblk->stream;
+
+	mutex_lock(&stream->mutex);
+	res = msblk->decompressor->decompress(msblk, stream->stream, buffer,
+		bh, b, offset, length, srclength, pages);
+	mutex_unlock(&stream->mutex);
+
+	if (res < 0)
+		ERROR("%s decompression failed, data probably corrupt\n",
+			msblk->decompressor->name);
+
+	return res;
+}
+
+int squashfs_max_decompressors(void)
+{
+	return 1;
+}
diff --git a/fs/squashfs/lzo_wrapper.c b/fs/squashfs/lzo_wrapper.c
index 00f4dfc5f088..75c3b5779172 100644
--- a/fs/squashfs/lzo_wrapper.c
+++ b/fs/squashfs/lzo_wrapper.c
@@ -37,7 +37,7 @@ struct squashfs_lzo {
 	void	*output;
 };
 
-static void *lzo_init(struct squashfs_sb_info *msblk, void *buff, int len)
+static void *lzo_init(struct squashfs_sb_info *msblk, void *buff)
 {
 	int block_size = max_t(int, msblk->block_size, SQUASHFS_METADATA_SIZE);
 
@@ -74,22 +74,16 @@ static void lzo_free(void *strm)
 }
 
 
-static int lzo_uncompress(struct squashfs_sb_info *msblk, void **buffer,
-	struct buffer_head **bh, int b, int offset, int length, int srclength,
-	int pages)
+static int lzo_uncompress(struct squashfs_sb_info *msblk, void *strm,
+	void **buffer, struct buffer_head **bh, int b, int offset, int length,
+	int srclength, int pages)
 {
-	struct squashfs_lzo *stream = msblk->stream;
+	struct squashfs_lzo *stream = strm;
 	void *buff = stream->input;
 	int avail, i, bytes = length, res;
 	size_t out_len = srclength;
 
-	mutex_lock(&msblk->read_data_mutex);
-
 	for (i = 0; i < b; i++) {
-		wait_on_buffer(bh[i]);
-		if (!buffer_uptodate(bh[i]))
-			goto block_release;
-
 		avail = min(bytes, msblk->devblksize - offset);
 		memcpy(buff, bh[i]->b_data + offset, avail);
 		buff += avail;
@@ -111,17 +105,9 @@ static int lzo_uncompress(struct squashfs_sb_info *msblk, void **buffer,
 		bytes -= avail;
 	}
 
-	mutex_unlock(&msblk->read_data_mutex);
 	return res;
 
-block_release:
-	for (; i < b; i++)
-		put_bh(bh[i]);
-
 failed:
-	mutex_unlock(&msblk->read_data_mutex);
-
-	ERROR("lzo decompression failed, data probably corrupt\n");
 	return -EIO;
 }
 
diff --git a/fs/squashfs/squashfs.h b/fs/squashfs/squashfs.h
index d1266516ed08..2e2751df8452 100644
--- a/fs/squashfs/squashfs.h
+++ b/fs/squashfs/squashfs.h
@@ -48,7 +48,14 @@ extern void *squashfs_read_table(struct super_block *, u64, int);
 
 /* decompressor.c */
 extern const struct squashfs_decompressor *squashfs_lookup_decompressor(int);
-extern void *squashfs_decompressor_init(struct super_block *, unsigned short);
+extern void *squashfs_decompressor_setup(struct super_block *, unsigned short);
+
+/* decompressor_xxx.c */
+extern void *squashfs_decompressor_create(struct squashfs_sb_info *, void *);
+extern void squashfs_decompressor_destroy(struct squashfs_sb_info *);
+extern int squashfs_decompress(struct squashfs_sb_info *, void **,
+	struct buffer_head **, int, int, int, int, int);
+extern int squashfs_max_decompressors(void);
 
 /* export.c */
 extern __le64 *squashfs_read_inode_lookup_table(struct super_block *, u64, u64,
diff --git a/fs/squashfs/squashfs_fs_sb.h b/fs/squashfs/squashfs_fs_sb.h
index 52934a22f296..9cdcf4150d59 100644
--- a/fs/squashfs/squashfs_fs_sb.h
+++ b/fs/squashfs/squashfs_fs_sb.h
@@ -63,10 +63,9 @@ struct squashfs_sb_info {
 	__le64					*id_table;
 	__le64					*fragment_index;
 	__le64					*xattr_id_table;
-	struct mutex				read_data_mutex;
 	struct mutex				meta_index_mutex;
 	struct meta_index			*meta_index;
-	void					*stream;
+	struct squashfs_stream			*stream;
 	__le64					*inode_lookup_table;
 	u64					inode_table;
 	u64					directory_table;
diff --git a/fs/squashfs/super.c b/fs/squashfs/super.c
index 60553a9053ca..202df6312d4e 100644
--- a/fs/squashfs/super.c
+++ b/fs/squashfs/super.c
@@ -98,7 +98,6 @@ static int squashfs_fill_super(struct super_block *sb, void *data, int silent)
 	msblk->devblksize = sb_min_blocksize(sb, SQUASHFS_DEVBLK_SIZE);
 	msblk->devblksize_log2 = ffz(~msblk->devblksize);
 
-	mutex_init(&msblk->read_data_mutex);
 	mutex_init(&msblk->meta_index_mutex);
 
 	/*
@@ -206,13 +205,14 @@ static int squashfs_fill_super(struct super_block *sb, void *data, int silent)
 		goto failed_mount;
 
 	/* Allocate read_page block */
-	msblk->read_page = squashfs_cache_init("data", 1, msblk->block_size);
+	msblk->read_page = squashfs_cache_init("data",
+		squashfs_max_decompressors(), msblk->block_size);
 	if (msblk->read_page == NULL) {
 		ERROR("Failed to allocate read_page block\n");
 		goto failed_mount;
 	}
 
-	msblk->stream = squashfs_decompressor_init(sb, flags);
+	msblk->stream = squashfs_decompressor_setup(sb, flags);
 	if (IS_ERR(msblk->stream)) {
 		err = PTR_ERR(msblk->stream);
 		msblk->stream = NULL;
@@ -336,7 +336,7 @@ failed_mount:
 	squashfs_cache_delete(msblk->block_cache);
 	squashfs_cache_delete(msblk->fragment_cache);
 	squashfs_cache_delete(msblk->read_page);
-	squashfs_decompressor_free(msblk, msblk->stream);
+	squashfs_decompressor_destroy(msblk);
 	kfree(msblk->inode_lookup_table);
 	kfree(msblk->fragment_index);
 	kfree(msblk->id_table);
@@ -383,7 +383,7 @@ static void squashfs_put_super(struct super_block *sb)
 		squashfs_cache_delete(sbi->block_cache);
 		squashfs_cache_delete(sbi->fragment_cache);
 		squashfs_cache_delete(sbi->read_page);
-		squashfs_decompressor_free(sbi, sbi->stream);
+		squashfs_decompressor_destroy(sbi);
 		kfree(sbi->id_table);
 		kfree(sbi->fragment_index);
 		kfree(sbi->meta_index);
diff --git a/fs/squashfs/xz_wrapper.c b/fs/squashfs/xz_wrapper.c
index 1760b7d108f6..5d1d07cca6b4 100644
--- a/fs/squashfs/xz_wrapper.c
+++ b/fs/squashfs/xz_wrapper.c
@@ -38,38 +38,63 @@ struct squashfs_xz {
 	struct xz_buf buf;
 };
 
-struct comp_opts {
+struct disk_comp_opts {
 	__le32 dictionary_size;
 	__le32 flags;
 };
 
-static void *squashfs_xz_init(struct squashfs_sb_info *msblk, void *buff,
-	int len)
+struct comp_opts {
+	int dict_size;
+};
+
+static void *squashfs_xz_comp_opts(struct squashfs_sb_info *msblk,
+	void *buff, int len)
 {
-	struct comp_opts *comp_opts = buff;
-	struct squashfs_xz *stream;
-	int dict_size = msblk->block_size;
-	int err, n;
+	struct disk_comp_opts *comp_opts = buff;
+	struct comp_opts *opts;
+	int err = 0, n;
+
+	opts = kmalloc(sizeof(*opts), GFP_KERNEL);
+	if (opts == NULL) {
+		err = -ENOMEM;
+		goto out2;
+	}
 
 	if (comp_opts) {
 		/* check compressor options are the expected length */
 		if (len < sizeof(*comp_opts)) {
 			err = -EIO;
-			goto failed;
+			goto out;
 		}
 
-		dict_size = le32_to_cpu(comp_opts->dictionary_size);
+		opts->dict_size = le32_to_cpu(comp_opts->dictionary_size);
 
 		/* the dictionary size should be 2^n or 2^n+2^(n+1) */
-		n = ffs(dict_size) - 1;
-		if (dict_size != (1 << n) && dict_size != (1 << n) +
+		n = ffs(opts->dict_size) - 1;
+		if (opts->dict_size != (1 << n) && opts->dict_size != (1 << n) +
 						(1 << (n + 1))) {
 			err = -EIO;
-			goto failed;
+			goto out;
 		}
-	}
+	} else
+		/* use defaults */
+		opts->dict_size = max_t(int, msblk->block_size,
+							SQUASHFS_METADATA_SIZE);
 
-	dict_size = max_t(int, dict_size, SQUASHFS_METADATA_SIZE);
+	return opts;
+
+out:
+	kfree(opts);
+out2:
+	return ERR_PTR(err);
+}
+
+
+static void *squashfs_xz_init(struct squashfs_sb_info *msblk, void *buff)
+{
+	struct comp_opts *comp_opts = buff;
+	struct squashfs_xz *stream;
+	int err;
 
 	stream = kmalloc(sizeof(*stream), GFP_KERNEL);
 	if (stream == NULL) {
@@ -77,7 +102,7 @@ static void *squashfs_xz_init(struct squashfs_sb_info *msblk, void *buff,
 		goto failed;
 	}
 
-	stream->state = xz_dec_init(XZ_PREALLOC, dict_size);
+	stream->state = xz_dec_init(XZ_PREALLOC, comp_opts->dict_size);
 	if (stream->state == NULL) {
 		kfree(stream);
 		err = -ENOMEM;
@@ -103,15 +128,13 @@ static void squashfs_xz_free(void *strm)
 }
 
 
-static int squashfs_xz_uncompress(struct squashfs_sb_info *msblk, void **buffer,
-	struct buffer_head **bh, int b, int offset, int length, int srclength,
-	int pages)
+static int squashfs_xz_uncompress(struct squashfs_sb_info *msblk, void *strm,
+	void **buffer, struct buffer_head **bh, int b, int offset, int length,
+	int srclength, int pages)
 {
 	enum xz_ret xz_err;
 	int avail, total = 0, k = 0, page = 0;
-	struct squashfs_xz *stream = msblk->stream;
-
-	mutex_lock(&msblk->read_data_mutex);
+	struct squashfs_xz *stream = strm;
 
 	xz_dec_reset(stream->state);
 	stream->buf.in_pos = 0;
@@ -124,10 +147,6 @@ static int squashfs_xz_uncompress(struct squashfs_sb_info *msblk, void **buffer,
 		if (stream->buf.in_pos == stream->buf.in_size && k < b) {
 			avail = min(length, msblk->devblksize - offset);
 			length -= avail;
-			wait_on_buffer(bh[k]);
-			if (!buffer_uptodate(bh[k]))
-				goto release_mutex;
-
 			stream->buf.in = bh[k]->b_data + offset;
 			stream->buf.in_size = avail;
 			stream->buf.in_pos = 0;
@@ -147,23 +166,12 @@ static int squashfs_xz_uncompress(struct squashfs_sb_info *msblk, void **buffer,
 			put_bh(bh[k++]);
 	} while (xz_err == XZ_OK);
 
-	if (xz_err != XZ_STREAM_END) {
-		ERROR("xz_dec_run error, data probably corrupt\n");
-		goto release_mutex;
-	}
-
-	if (k < b) {
-		ERROR("xz_uncompress error, input remaining\n");
-		goto release_mutex;
-	}
-
-	total += stream->buf.out_pos;
-	mutex_unlock(&msblk->read_data_mutex);
-	return total;
+	if (xz_err != XZ_STREAM_END || k < b)
+		goto out;
 
-release_mutex:
-	mutex_unlock(&msblk->read_data_mutex);
+	return total + stream->buf.out_pos;
 
+out:
 	for (; k < b; k++)
 		put_bh(bh[k]);
 
@@ -172,6 +180,7 @@ release_mutex:
 
 const struct squashfs_decompressor squashfs_xz_comp_ops = {
 	.init = squashfs_xz_init,
+	.comp_opts = squashfs_xz_comp_opts,
 	.free = squashfs_xz_free,
 	.decompress = squashfs_xz_uncompress,
 	.id = XZ_COMPRESSION,
diff --git a/fs/squashfs/zlib_wrapper.c b/fs/squashfs/zlib_wrapper.c
index 55d918fd2d86..bb049027d15c 100644
--- a/fs/squashfs/zlib_wrapper.c
+++ b/fs/squashfs/zlib_wrapper.c
@@ -33,7 +33,7 @@
 #include "squashfs.h"
 #include "decompressor.h"
 
-static void *zlib_init(struct squashfs_sb_info *dummy, void *buff, int len)
+static void *zlib_init(struct squashfs_sb_info *dummy, void *buff)
 {
 	z_stream *stream = kmalloc(sizeof(z_stream), GFP_KERNEL);
 	if (stream == NULL)
@@ -61,15 +61,13 @@ static void zlib_free(void *strm)
 }
 
 
-static int zlib_uncompress(struct squashfs_sb_info *msblk, void **buffer,
-	struct buffer_head **bh, int b, int offset, int length, int srclength,
-	int pages)
+static int zlib_uncompress(struct squashfs_sb_info *msblk, void *strm,
+	void **buffer, struct buffer_head **bh, int b, int offset, int length,
+	int srclength, int pages)
 {
 	int zlib_err, zlib_init = 0;
 	int k = 0, page = 0;
-	z_stream *stream = msblk->stream;
-
-	mutex_lock(&msblk->read_data_mutex);
+	z_stream *stream = strm;
 
 	stream->avail_out = 0;
 	stream->avail_in = 0;
@@ -78,10 +76,6 @@ static int zlib_uncompress(struct squashfs_sb_info *msblk, void **buffer,
 		if (stream->avail_in == 0 && k < b) {
 			int avail = min(length, msblk->devblksize - offset);
 			length -= avail;
-			wait_on_buffer(bh[k]);
-			if (!buffer_uptodate(bh[k]))
-				goto release_mutex;
-
 			stream->next_in = bh[k]->b_data + offset;
 			stream->avail_in = avail;
 			offset = 0;
@@ -94,12 +88,8 @@ static int zlib_uncompress(struct squashfs_sb_info *msblk, void **buffer,
 
 		if (!zlib_init) {
 			zlib_err = zlib_inflateInit(stream);
-			if (zlib_err != Z_OK) {
-				ERROR("zlib_inflateInit returned unexpected "
-					"result 0x%x, srclength %d\n",
-					zlib_err, srclength);
-				goto release_mutex;
-			}
+			if (zlib_err != Z_OK)
+				goto out;
 			zlib_init = 1;
 		}
 
@@ -109,29 +99,19 @@ static int zlib_uncompress(struct squashfs_sb_info *msblk, void **buffer,
 			put_bh(bh[k++]);
 	} while (zlib_err == Z_OK);
 
-	if (zlib_err != Z_STREAM_END) {
-		ERROR("zlib_inflate error, data probably corrupt\n");
-		goto release_mutex;
-	}
+	if (zlib_err != Z_STREAM_END)
+		goto out;
 
 	zlib_err = zlib_inflateEnd(stream);
-	if (zlib_err != Z_OK) {
-		ERROR("zlib_inflate error, data probably corrupt\n");
-		goto release_mutex;
-	}
-
-	if (k < b) {
-		ERROR("zlib_uncompress error, data remaining\n");
-		goto release_mutex;
-	}
+	if (zlib_err != Z_OK)
+		goto out;
 
-	length = stream->total_out;
-	mutex_unlock(&msblk->read_data_mutex);
-	return length;
+	if (k < b)
+		goto out;
 
-release_mutex:
-	mutex_unlock(&msblk->read_data_mutex);
+	return stream->total_out;
 
+out:
 	for (; k < b; k++)
 		put_bh(bh[k]);
 
-- 
cgit 


From cd59c2ec5f37a2bc1315c9324aab6c21d43ffa1a Mon Sep 17 00:00:00 2001
From: Minchan Kim <minchan@kernel.org>
Date: Mon, 28 Oct 2013 14:26:30 +0900
Subject: squashfs: Enhance parallel I/O

Now squashfs have used for only one stream buffer for decompression
so it hurts parallel read performance so this patch supports
multiple decompressor to enhance performance parallel I/O.

Four 1G file dd read on KVM machine which has 2 CPU and 4G memory.

dd if=test/test1.dat of=/dev/null &
dd if=test/test2.dat of=/dev/null &
dd if=test/test3.dat of=/dev/null &
dd if=test/test4.dat of=/dev/null &

old : 1m39s -> new : 9s

* From v1
  * Change comp_strm with decomp_strm - Phillip
  * Change/add comments - Phillip

Signed-off-by: Minchan Kim <minchan@kernel.org>
Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
---
 fs/squashfs/Kconfig              |  13 +++
 fs/squashfs/Makefile             |   9 +-
 fs/squashfs/decompressor_multi.c | 200 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 221 insertions(+), 1 deletion(-)
 create mode 100644 fs/squashfs/decompressor_multi.c

diff --git a/fs/squashfs/Kconfig b/fs/squashfs/Kconfig
index c70111ebefd4..1c6d340fc61f 100644
--- a/fs/squashfs/Kconfig
+++ b/fs/squashfs/Kconfig
@@ -63,6 +63,19 @@ config SQUASHFS_LZO
 
 	  If unsure, say N.
 
+config SQUASHFS_MULTI_DECOMPRESSOR
+	bool "Use multiple decompressors for handling parallel I/O"
+	depends on SQUASHFS
+	help
+	  By default Squashfs uses a single decompressor but it gives
+	  poor performance on parallel I/O workloads when using multiple CPU
+	  machines due to waiting on decompressor availability.
+
+	  If you have a parallel I/O workload and your system has enough memory,
+	  using this option may improve overall I/O performance.
+
+	  If unsure, say N.
+
 config SQUASHFS_XZ
 	bool "Include support for XZ compressed file systems"
 	depends on SQUASHFS
diff --git a/fs/squashfs/Makefile b/fs/squashfs/Makefile
index c223c8439c21..dfebc3b12d61 100644
--- a/fs/squashfs/Makefile
+++ b/fs/squashfs/Makefile
@@ -4,8 +4,15 @@
 
 obj-$(CONFIG_SQUASHFS) += squashfs.o
 squashfs-y += block.o cache.o dir.o export.o file.o fragment.o id.o inode.o
-squashfs-y += namei.o super.o symlink.o decompressor.o decompressor_single.o
+squashfs-y += namei.o super.o symlink.o decompressor.o
+
 squashfs-$(CONFIG_SQUASHFS_XATTR) += xattr.o xattr_id.o
 squashfs-$(CONFIG_SQUASHFS_LZO) += lzo_wrapper.o
 squashfs-$(CONFIG_SQUASHFS_XZ) += xz_wrapper.o
 squashfs-$(CONFIG_SQUASHFS_ZLIB) += zlib_wrapper.o
+
+ifdef CONFIG_SQUASHFS_MULTI_DECOMPRESSOR
+	squashfs-y		+= decompressor_multi.o
+else
+	squashfs-y		+= decompressor_single.o
+endif
diff --git a/fs/squashfs/decompressor_multi.c b/fs/squashfs/decompressor_multi.c
new file mode 100644
index 000000000000..462731db5130
--- /dev/null
+++ b/fs/squashfs/decompressor_multi.c
@@ -0,0 +1,200 @@
+/*
+ *  Copyright (c) 2013
+ *  Minchan Kim <minchan@kernel.org>
+ *
+ *  This work is licensed under the terms of the GNU GPL, version 2. See
+ *  the COPYING file in the top-level directory.
+ */
+#include <linux/types.h>
+#include <linux/mutex.h>
+#include <linux/slab.h>
+#include <linux/buffer_head.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
+#include <linux/cpumask.h>
+
+#include "squashfs_fs.h"
+#include "squashfs_fs_sb.h"
+#include "decompressor.h"
+#include "squashfs.h"
+
+/*
+ * This file implements multi-threaded decompression in the
+ * decompressor framework
+ */
+
+
+/*
+ * The reason that multiply two is that a CPU can request new I/O
+ * while it is waiting previous request.
+ */
+#define MAX_DECOMPRESSOR	(num_online_cpus() * 2)
+
+
+int squashfs_max_decompressors(void)
+{
+	return MAX_DECOMPRESSOR;
+}
+
+
+struct squashfs_stream {
+	void			*comp_opts;
+	struct list_head	strm_list;
+	struct mutex		mutex;
+	int			avail_decomp;
+	wait_queue_head_t	wait;
+};
+
+
+struct decomp_stream {
+	void *stream;
+	struct list_head list;
+};
+
+
+static void put_decomp_stream(struct decomp_stream *decomp_strm,
+				struct squashfs_stream *stream)
+{
+	mutex_lock(&stream->mutex);
+	list_add(&decomp_strm->list, &stream->strm_list);
+	mutex_unlock(&stream->mutex);
+	wake_up(&stream->wait);
+}
+
+void *squashfs_decompressor_create(struct squashfs_sb_info *msblk,
+				void *comp_opts)
+{
+	struct squashfs_stream *stream;
+	struct decomp_stream *decomp_strm = NULL;
+	int err = -ENOMEM;
+
+	stream = kzalloc(sizeof(*stream), GFP_KERNEL);
+	if (!stream)
+		goto out;
+
+	stream->comp_opts = comp_opts;
+	mutex_init(&stream->mutex);
+	INIT_LIST_HEAD(&stream->strm_list);
+	init_waitqueue_head(&stream->wait);
+
+	/*
+	 * We should have a decompressor at least as default
+	 * so if we fail to allocate new decompressor dynamically,
+	 * we could always fall back to default decompressor and
+	 * file system works.
+	 */
+	decomp_strm = kmalloc(sizeof(*decomp_strm), GFP_KERNEL);
+	if (!decomp_strm)
+		goto out;
+
+	decomp_strm->stream = msblk->decompressor->init(msblk,
+						stream->comp_opts);
+	if (IS_ERR(decomp_strm->stream)) {
+		err = PTR_ERR(decomp_strm->stream);
+		goto out;
+	}
+
+	list_add(&decomp_strm->list, &stream->strm_list);
+	stream->avail_decomp = 1;
+	return stream;
+
+out:
+	kfree(decomp_strm);
+	kfree(stream);
+	return ERR_PTR(err);
+}
+
+
+void squashfs_decompressor_destroy(struct squashfs_sb_info *msblk)
+{
+	struct squashfs_stream *stream = msblk->stream;
+	if (stream) {
+		struct decomp_stream *decomp_strm;
+
+		while (!list_empty(&stream->strm_list)) {
+			decomp_strm = list_entry(stream->strm_list.prev,
+						struct decomp_stream, list);
+			list_del(&decomp_strm->list);
+			msblk->decompressor->free(decomp_strm->stream);
+			kfree(decomp_strm);
+			stream->avail_decomp--;
+		}
+	}
+
+	WARN_ON(stream->avail_decomp);
+	kfree(stream->comp_opts);
+	kfree(stream);
+}
+
+
+static struct decomp_stream *get_decomp_stream(struct squashfs_sb_info *msblk,
+					struct squashfs_stream *stream)
+{
+	struct decomp_stream *decomp_strm;
+
+	while (1) {
+		mutex_lock(&stream->mutex);
+
+		/* There is available decomp_stream */
+		if (!list_empty(&stream->strm_list)) {
+			decomp_strm = list_entry(stream->strm_list.prev,
+				struct decomp_stream, list);
+			list_del(&decomp_strm->list);
+			mutex_unlock(&stream->mutex);
+			break;
+		}
+
+		/*
+		 * If there is no available decomp and already full,
+		 * let's wait for releasing decomp from other users.
+		 */
+		if (stream->avail_decomp >= MAX_DECOMPRESSOR)
+			goto wait;
+
+		/* Let's allocate new decomp */
+		decomp_strm = kmalloc(sizeof(*decomp_strm), GFP_KERNEL);
+		if (!decomp_strm)
+			goto wait;
+
+		decomp_strm->stream = msblk->decompressor->init(msblk,
+						stream->comp_opts);
+		if (IS_ERR(decomp_strm->stream)) {
+			kfree(decomp_strm);
+			goto wait;
+		}
+
+		stream->avail_decomp++;
+		WARN_ON(stream->avail_decomp > MAX_DECOMPRESSOR);
+
+		mutex_unlock(&stream->mutex);
+		break;
+wait:
+		/*
+		 * If system memory is tough, let's for other's
+		 * releasing instead of hurting VM because it could
+		 * make page cache thrashing.
+		 */
+		mutex_unlock(&stream->mutex);
+		wait_event(stream->wait,
+			!list_empty(&stream->strm_list));
+	}
+
+	return decomp_strm;
+}
+
+
+int squashfs_decompress(struct squashfs_sb_info *msblk,
+	void **buffer, struct buffer_head **bh, int b, int offset, int length,
+	int srclength, int pages)
+{
+	int res;
+	struct squashfs_stream *stream = msblk->stream;
+	struct decomp_stream *decomp_stream = get_decomp_stream(msblk, stream);
+	res = msblk->decompressor->decompress(msblk, decomp_stream->stream,
+		buffer, bh, b, offset, length, srclength, pages);
+	put_decomp_stream(decomp_stream, stream);
+	if (res < 0)
+		ERROR("%s decompression failed, data probably corrupt\n",
+			msblk->decompressor->name);
+	return res;
+}
-- 
cgit 


From d208383d640727b70cd6689bc17e67e9b5ebf4ff Mon Sep 17 00:00:00 2001
From: Phillip Lougher <phillip@squashfs.org.uk>
Date: Mon, 18 Nov 2013 02:31:36 +0000
Subject: Squashfs: add multi-threaded decompression using percpu variable

Add a multi-threaded decompression implementation which uses
percpu variables.

Using percpu variables has advantages and disadvantages over
implementations which do not use percpu variables.

Advantages:
  * the nature of percpu variables ensures decompression is
    load-balanced across the multiple cores.
  * simplicity.

Disadvantages: it limits decompression to one thread per core.

Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
---
 fs/squashfs/Kconfig                     | 57 ++++++++++++++-----
 fs/squashfs/Makefile                    | 10 +---
 fs/squashfs/decompressor_multi_percpu.c | 98 +++++++++++++++++++++++++++++++++
 3 files changed, 145 insertions(+), 20 deletions(-)
 create mode 100644 fs/squashfs/decompressor_multi_percpu.c

diff --git a/fs/squashfs/Kconfig b/fs/squashfs/Kconfig
index 1c6d340fc61f..159bd6676dc2 100644
--- a/fs/squashfs/Kconfig
+++ b/fs/squashfs/Kconfig
@@ -25,6 +25,50 @@ config SQUASHFS
 
 	  If unsure, say N.
 
+choice
+	prompt "Decompressor parallelisation options"
+	depends on SQUASHFS
+	help
+	  Squashfs now supports three parallelisation options for
+	  decompression.  Each one exhibits various trade-offs between
+	  decompression performance and CPU and memory usage.
+
+	  If in doubt, select "Single threaded compression"
+
+config SQUASHFS_DECOMP_SINGLE
+	bool "Single threaded compression"
+	help
+	  Traditionally Squashfs has used single-threaded decompression.
+	  Only one block (data or metadata) can be decompressed at any
+	  one time.  This limits CPU and memory usage to a minimum.
+
+config SQUASHFS_DECOMP_MULTI
+	bool "Use multiple decompressors for parallel I/O"
+	help
+	  By default Squashfs uses a single decompressor but it gives
+	  poor performance on parallel I/O workloads when using multiple CPU
+	  machines due to waiting on decompressor availability.
+
+	  If you have a parallel I/O workload and your system has enough memory,
+	  using this option may improve overall I/O performance.
+
+	  This decompressor implementation uses up to two parallel
+	  decompressors per core.  It dynamically allocates decompressors
+	  on a demand basis.
+
+config SQUASHFS_DECOMP_MULTI_PERCPU
+	bool "Use percpu multiple decompressors for parallel I/O"
+	help
+	  By default Squashfs uses a single decompressor but it gives
+	  poor performance on parallel I/O workloads when using multiple CPU
+	  machines due to waiting on decompressor availability.
+
+	  This decompressor implementation uses a maximum of one
+	  decompressor per core.  It uses percpu variables to ensure
+	  decompression is load-balanced across the cores.
+
+endchoice
+
 config SQUASHFS_XATTR
 	bool "Squashfs XATTR support"
 	depends on SQUASHFS
@@ -63,19 +107,6 @@ config SQUASHFS_LZO
 
 	  If unsure, say N.
 
-config SQUASHFS_MULTI_DECOMPRESSOR
-	bool "Use multiple decompressors for handling parallel I/O"
-	depends on SQUASHFS
-	help
-	  By default Squashfs uses a single decompressor but it gives
-	  poor performance on parallel I/O workloads when using multiple CPU
-	  machines due to waiting on decompressor availability.
-
-	  If you have a parallel I/O workload and your system has enough memory,
-	  using this option may improve overall I/O performance.
-
-	  If unsure, say N.
-
 config SQUASHFS_XZ
 	bool "Include support for XZ compressed file systems"
 	depends on SQUASHFS
diff --git a/fs/squashfs/Makefile b/fs/squashfs/Makefile
index dfebc3b12d61..5833b96ee69c 100644
--- a/fs/squashfs/Makefile
+++ b/fs/squashfs/Makefile
@@ -5,14 +5,10 @@
 obj-$(CONFIG_SQUASHFS) += squashfs.o
 squashfs-y += block.o cache.o dir.o export.o file.o fragment.o id.o inode.o
 squashfs-y += namei.o super.o symlink.o decompressor.o
-
+squashfs-$(CONFIG_SQUASHFS_DECOMP_SINGLE) += decompressor_single.o
+squashfs-$(CONFIG_SQUASHFS_DECOMP_MULTI) += decompressor_multi.o
+squashfs-$(CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU) += decompressor_multi_percpu.o
 squashfs-$(CONFIG_SQUASHFS_XATTR) += xattr.o xattr_id.o
 squashfs-$(CONFIG_SQUASHFS_LZO) += lzo_wrapper.o
 squashfs-$(CONFIG_SQUASHFS_XZ) += xz_wrapper.o
 squashfs-$(CONFIG_SQUASHFS_ZLIB) += zlib_wrapper.o
-
-ifdef CONFIG_SQUASHFS_MULTI_DECOMPRESSOR
-	squashfs-y		+= decompressor_multi.o
-else
-	squashfs-y		+= decompressor_single.o
-endif
diff --git a/fs/squashfs/decompressor_multi_percpu.c b/fs/squashfs/decompressor_multi_percpu.c
new file mode 100644
index 000000000000..0e7b679bc4ad
--- /dev/null
+++ b/fs/squashfs/decompressor_multi_percpu.c
@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2013
+ * Phillip Lougher <phillip@squashfs.org.uk>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ */
+
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <linux/percpu.h>
+#include <linux/buffer_head.h>
+
+#include "squashfs_fs.h"
+#include "squashfs_fs_sb.h"
+#include "decompressor.h"
+#include "squashfs.h"
+
+/*
+ * This file implements multi-threaded decompression using percpu
+ * variables, one thread per cpu core.
+ */
+
+struct squashfs_stream {
+	void		*stream;
+};
+
+void *squashfs_decompressor_create(struct squashfs_sb_info *msblk,
+						void *comp_opts)
+{
+	struct squashfs_stream *stream;
+	struct squashfs_stream __percpu *percpu;
+	int err, cpu;
+
+	percpu = alloc_percpu(struct squashfs_stream);
+	if (percpu == NULL)
+		return ERR_PTR(-ENOMEM);
+
+	for_each_possible_cpu(cpu) {
+		stream = per_cpu_ptr(percpu, cpu);
+		stream->stream = msblk->decompressor->init(msblk, comp_opts);
+		if (IS_ERR(stream->stream)) {
+			err = PTR_ERR(stream->stream);
+			goto out;
+		}
+	}
+
+	kfree(comp_opts);
+	return (__force void *) percpu;
+
+out:
+	for_each_possible_cpu(cpu) {
+		stream = per_cpu_ptr(percpu, cpu);
+		if (!IS_ERR_OR_NULL(stream->stream))
+			msblk->decompressor->free(stream->stream);
+	}
+	free_percpu(percpu);
+	return ERR_PTR(err);
+}
+
+void squashfs_decompressor_destroy(struct squashfs_sb_info *msblk)
+{
+	struct squashfs_stream __percpu *percpu =
+			(struct squashfs_stream __percpu *) msblk->stream;
+	struct squashfs_stream *stream;
+	int cpu;
+
+	if (msblk->stream) {
+		for_each_possible_cpu(cpu) {
+			stream = per_cpu_ptr(percpu, cpu);
+			msblk->decompressor->free(stream->stream);
+		}
+		free_percpu(percpu);
+	}
+}
+
+int squashfs_decompress(struct squashfs_sb_info *msblk,
+	void **buffer, struct buffer_head **bh, int b, int offset, int length,
+	int srclength, int pages)
+{
+	struct squashfs_stream __percpu *percpu =
+			(struct squashfs_stream __percpu *) msblk->stream;
+	struct squashfs_stream *stream = get_cpu_ptr(percpu);
+	int res = msblk->decompressor->decompress(msblk, stream->stream, buffer,
+		bh, b, offset, length, srclength, pages);
+	put_cpu_ptr(stream);
+
+	if (res < 0)
+		ERROR("%s decompression failed, data probably corrupt\n",
+			msblk->decompressor->name);
+
+	return res;
+}
+
+int squashfs_max_decompressors(void)
+{
+	return num_possible_cpus();
+}
-- 
cgit 


From 846b730e99518a1c9945afcb2afbe4d08a02ed80 Mon Sep 17 00:00:00 2001
From: Phillip Lougher <phillip@squashfs.org.uk>
Date: Mon, 18 Nov 2013 02:59:12 +0000
Subject: Squashfs: Generalise paging handling in the decompressors

Further generalise the decompressors by adding a page handler
abstraction.  This adds helpers to allow the decompressors
to access and process the output buffers in an implementation
independant manner.

This allows different types of output buffer to be passed
to the decompressors, with the implementation specific
aspects handled at decompression time, but without the
knowledge being held in the decompressor wrapper code.

This will allow the decompressors to handle Squashfs
cache buffers, and page cache pages.

This patch adds the abstraction and an implementation for
the caches.

Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
Reviewed-by: Minchan Kim <minchan@kernel.org>
---
 fs/squashfs/block.c                     | 27 ++++++++++--------
 fs/squashfs/cache.c                     | 28 +++++++++++++++----
 fs/squashfs/decompressor.c              | 14 ++++++++--
 fs/squashfs/decompressor.h              |  5 ++--
 fs/squashfs/decompressor_multi.c        |  7 ++---
 fs/squashfs/decompressor_multi_percpu.c |  9 +++---
 fs/squashfs/decompressor_single.c       |  9 +++---
 fs/squashfs/lzo_wrapper.c               | 27 ++++++++++++------
 fs/squashfs/page_actor.h                | 49 +++++++++++++++++++++++++++++++++
 fs/squashfs/squashfs.h                  |  8 +++---
 fs/squashfs/squashfs_fs_sb.h            |  1 +
 fs/squashfs/xz_wrapper.c                | 22 +++++++++------
 fs/squashfs/zlib_wrapper.c              | 24 ++++++++++------
 13 files changed, 163 insertions(+), 67 deletions(-)
 create mode 100644 fs/squashfs/page_actor.h

diff --git a/fs/squashfs/block.c b/fs/squashfs/block.c
index 4dd402597f22..0cea9b9236d0 100644
--- a/fs/squashfs/block.c
+++ b/fs/squashfs/block.c
@@ -36,6 +36,7 @@
 #include "squashfs_fs_sb.h"
 #include "squashfs.h"
 #include "decompressor.h"
+#include "page_actor.h"
 
 /*
  * Read the metadata block length, this is stored in the first two
@@ -86,16 +87,16 @@ static struct buffer_head *get_block_length(struct super_block *sb,
  * generated a larger block - this does occasionally happen with compression
  * algorithms).
  */
-int squashfs_read_data(struct super_block *sb, void **buffer, u64 index,
-			int length, u64 *next_index, int srclength, int pages)
+int squashfs_read_data(struct super_block *sb, u64 index, int length,
+		u64 *next_index, struct squashfs_page_actor *output)
 {
 	struct squashfs_sb_info *msblk = sb->s_fs_info;
 	struct buffer_head **bh;
 	int offset = index & ((1 << msblk->devblksize_log2) - 1);
 	u64 cur_index = index >> msblk->devblksize_log2;
-	int bytes, compressed, b = 0, k = 0, page = 0, avail, i;
+	int bytes, compressed, b = 0, k = 0, avail, i;
 
-	bh = kcalloc(((srclength + msblk->devblksize - 1)
+	bh = kcalloc(((output->length + msblk->devblksize - 1)
 		>> msblk->devblksize_log2) + 1, sizeof(*bh), GFP_KERNEL);
 	if (bh == NULL)
 		return -ENOMEM;
@@ -111,9 +112,9 @@ int squashfs_read_data(struct super_block *sb, void **buffer, u64 index,
 			*next_index = index + length;
 
 		TRACE("Block @ 0x%llx, %scompressed size %d, src size %d\n",
-			index, compressed ? "" : "un", length, srclength);
+			index, compressed ? "" : "un", length, output->length);
 
-		if (length < 0 || length > srclength ||
+		if (length < 0 || length > output->length ||
 				(index + length) > msblk->bytes_used)
 			goto read_failure;
 
@@ -145,7 +146,7 @@ int squashfs_read_data(struct super_block *sb, void **buffer, u64 index,
 		TRACE("Block @ 0x%llx, %scompressed size %d\n", index,
 				compressed ? "" : "un", length);
 
-		if (length < 0 || length > srclength ||
+		if (length < 0 || length > output->length ||
 					(index + length) > msblk->bytes_used)
 			goto block_release;
 
@@ -165,8 +166,8 @@ int squashfs_read_data(struct super_block *sb, void **buffer, u64 index,
 	}
 
 	if (compressed) {
-		length = squashfs_decompress(msblk, buffer, bh, b, offset,
-			 length, srclength, pages);
+		length = squashfs_decompress(msblk, bh, b, offset, length,
+			output);
 		if (length < 0)
 			goto read_failure;
 	} else {
@@ -174,19 +175,20 @@ int squashfs_read_data(struct super_block *sb, void **buffer, u64 index,
 		 * Block is uncompressed.
 		 */
 		int in, pg_offset = 0;
+		void *data = squashfs_first_page(output);
 
 		for (bytes = length; k < b; k++) {
 			in = min(bytes, msblk->devblksize - offset);
 			bytes -= in;
 			while (in) {
 				if (pg_offset == PAGE_CACHE_SIZE) {
-					page++;
+					data = squashfs_next_page(output);
 					pg_offset = 0;
 				}
 				avail = min_t(int, in, PAGE_CACHE_SIZE -
 						pg_offset);
-				memcpy(buffer[page] + pg_offset,
-						bh[k]->b_data + offset, avail);
+				memcpy(data + pg_offset, bh[k]->b_data + offset,
+						avail);
 				in -= avail;
 				pg_offset += avail;
 				offset += avail;
@@ -194,6 +196,7 @@ int squashfs_read_data(struct super_block *sb, void **buffer, u64 index,
 			offset = 0;
 			put_bh(bh[k]);
 		}
+		squashfs_finish_page(output);
 	}
 
 	kfree(bh);
diff --git a/fs/squashfs/cache.c b/fs/squashfs/cache.c
index af0b73802592..1cb70a0b2168 100644
--- a/fs/squashfs/cache.c
+++ b/fs/squashfs/cache.c
@@ -56,6 +56,7 @@
 #include "squashfs_fs.h"
 #include "squashfs_fs_sb.h"
 #include "squashfs.h"
+#include "page_actor.h"
 
 /*
  * Look-up block in cache, and increment usage count.  If not in cache, read
@@ -119,9 +120,8 @@ struct squashfs_cache_entry *squashfs_cache_get(struct super_block *sb,
 			entry->error = 0;
 			spin_unlock(&cache->lock);
 
-			entry->length = squashfs_read_data(sb, entry->data,
-				block, length, &entry->next_index,
-				cache->block_size, cache->pages);
+			entry->length = squashfs_read_data(sb, block, length,
+				&entry->next_index, entry->actor);
 
 			spin_lock(&cache->lock);
 
@@ -220,6 +220,7 @@ void squashfs_cache_delete(struct squashfs_cache *cache)
 				kfree(cache->entry[i].data[j]);
 			kfree(cache->entry[i].data);
 		}
+		kfree(cache->entry[i].actor);
 	}
 
 	kfree(cache->entry);
@@ -280,6 +281,13 @@ struct squashfs_cache *squashfs_cache_init(char *name, int entries,
 				goto cleanup;
 			}
 		}
+
+		entry->actor = squashfs_page_actor_init(entry->data,
+						cache->pages, 0);
+		if (entry->actor == NULL) {
+			ERROR("Failed to allocate %s cache entry\n", name);
+			goto cleanup;
+		}
 	}
 
 	return cache;
@@ -410,6 +418,7 @@ void *squashfs_read_table(struct super_block *sb, u64 block, int length)
 	int pages = (length + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
 	int i, res;
 	void *table, *buffer, **data;
+	struct squashfs_page_actor *actor;
 
 	table = buffer = kmalloc(length, GFP_KERNEL);
 	if (table == NULL)
@@ -421,19 +430,28 @@ void *squashfs_read_table(struct super_block *sb, u64 block, int length)
 		goto failed;
 	}
 
+	actor = squashfs_page_actor_init(data, pages, length);
+	if (actor == NULL) {
+		res = -ENOMEM;
+		goto failed2;
+	}
+
 	for (i = 0; i < pages; i++, buffer += PAGE_CACHE_SIZE)
 		data[i] = buffer;
 
-	res = squashfs_read_data(sb, data, block, length |
-		SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, length, pages);
+	res = squashfs_read_data(sb, block, length |
+		SQUASHFS_COMPRESSED_BIT_BLOCK, NULL, actor);
 
 	kfree(data);
+	kfree(actor);
 
 	if (res < 0)
 		goto failed;
 
 	return table;
 
+failed2:
+	kfree(data);
 failed:
 	kfree(table);
 	return ERR_PTR(res);
diff --git a/fs/squashfs/decompressor.c b/fs/squashfs/decompressor.c
index 234291f79ba5..ac22fe73b0ad 100644
--- a/fs/squashfs/decompressor.c
+++ b/fs/squashfs/decompressor.c
@@ -30,6 +30,7 @@
 #include "squashfs_fs_sb.h"
 #include "decompressor.h"
 #include "squashfs.h"
+#include "page_actor.h"
 
 /*
  * This file (and decompressor.h) implements a decompressor framework for
@@ -87,6 +88,7 @@ static void *get_comp_opts(struct super_block *sb, unsigned short flags)
 {
 	struct squashfs_sb_info *msblk = sb->s_fs_info;
 	void *buffer = NULL, *comp_opts;
+	struct squashfs_page_actor *actor = NULL;
 	int length = 0;
 
 	/*
@@ -99,9 +101,14 @@ static void *get_comp_opts(struct super_block *sb, unsigned short flags)
 			goto out;
 		}
 
-		length = squashfs_read_data(sb, &buffer,
-			sizeof(struct squashfs_super_block), 0, NULL,
-				PAGE_CACHE_SIZE, 1);
+		actor = squashfs_page_actor_init(&buffer, 1, 0);
+		if (actor == NULL) {
+			comp_opts = ERR_PTR(-ENOMEM);
+			goto out;
+		}
+
+		length = squashfs_read_data(sb,
+			sizeof(struct squashfs_super_block), 0, NULL, actor);
 
 		if (length < 0) {
 			comp_opts = ERR_PTR(length);
@@ -112,6 +119,7 @@ static void *get_comp_opts(struct super_block *sb, unsigned short flags)
 	comp_opts = squashfs_comp_opts(msblk, buffer, length);
 
 out:
+	kfree(actor);
 	kfree(buffer);
 	return comp_opts;
 }
diff --git a/fs/squashfs/decompressor.h b/fs/squashfs/decompressor.h
index 6cdb20a3878a..af0985321808 100644
--- a/fs/squashfs/decompressor.h
+++ b/fs/squashfs/decompressor.h
@@ -27,8 +27,9 @@ struct squashfs_decompressor {
 	void	*(*init)(struct squashfs_sb_info *, void *);
 	void	*(*comp_opts)(struct squashfs_sb_info *, void *, int);
 	void	(*free)(void *);
-	int	(*decompress)(struct squashfs_sb_info *, void *, void **,
-		struct buffer_head **, int, int, int, int, int);
+	int	(*decompress)(struct squashfs_sb_info *, void *,
+		struct buffer_head **, int, int, int,
+		struct squashfs_page_actor *);
 	int	id;
 	char	*name;
 	int	supported;
diff --git a/fs/squashfs/decompressor_multi.c b/fs/squashfs/decompressor_multi.c
index 462731db5130..ae54675a3526 100644
--- a/fs/squashfs/decompressor_multi.c
+++ b/fs/squashfs/decompressor_multi.c
@@ -183,15 +183,14 @@ wait:
 }
 
 
-int squashfs_decompress(struct squashfs_sb_info *msblk,
-	void **buffer, struct buffer_head **bh, int b, int offset, int length,
-	int srclength, int pages)
+int squashfs_decompress(struct squashfs_sb_info *msblk, struct buffer_head **bh,
+	int b, int offset, int length, struct squashfs_page_actor *output)
 {
 	int res;
 	struct squashfs_stream *stream = msblk->stream;
 	struct decomp_stream *decomp_stream = get_decomp_stream(msblk, stream);
 	res = msblk->decompressor->decompress(msblk, decomp_stream->stream,
-		buffer, bh, b, offset, length, srclength, pages);
+		bh, b, offset, length, output);
 	put_decomp_stream(decomp_stream, stream);
 	if (res < 0)
 		ERROR("%s decompression failed, data probably corrupt\n",
diff --git a/fs/squashfs/decompressor_multi_percpu.c b/fs/squashfs/decompressor_multi_percpu.c
index 0e7b679bc4ad..23a9c28ad8ea 100644
--- a/fs/squashfs/decompressor_multi_percpu.c
+++ b/fs/squashfs/decompressor_multi_percpu.c
@@ -74,15 +74,14 @@ void squashfs_decompressor_destroy(struct squashfs_sb_info *msblk)
 	}
 }
 
-int squashfs_decompress(struct squashfs_sb_info *msblk,
-	void **buffer, struct buffer_head **bh, int b, int offset, int length,
-	int srclength, int pages)
+int squashfs_decompress(struct squashfs_sb_info *msblk, struct buffer_head **bh,
+	int b, int offset, int length, struct squashfs_page_actor *output)
 {
 	struct squashfs_stream __percpu *percpu =
 			(struct squashfs_stream __percpu *) msblk->stream;
 	struct squashfs_stream *stream = get_cpu_ptr(percpu);
-	int res = msblk->decompressor->decompress(msblk, stream->stream, buffer,
-		bh, b, offset, length, srclength, pages);
+	int res = msblk->decompressor->decompress(msblk, stream->stream, bh, b,
+		offset, length, output);
 	put_cpu_ptr(stream);
 
 	if (res < 0)
diff --git a/fs/squashfs/decompressor_single.c b/fs/squashfs/decompressor_single.c
index f857cf6f22d4..a6c75929a00e 100644
--- a/fs/squashfs/decompressor_single.c
+++ b/fs/squashfs/decompressor_single.c
@@ -61,16 +61,15 @@ void squashfs_decompressor_destroy(struct squashfs_sb_info *msblk)
 	}
 }
 
-int squashfs_decompress(struct squashfs_sb_info *msblk,
-	void **buffer, struct buffer_head **bh, int b, int offset, int length,
-	int srclength, int pages)
+int squashfs_decompress(struct squashfs_sb_info *msblk, struct buffer_head **bh,
+	int b, int offset, int length, struct squashfs_page_actor *output)
 {
 	int res;
 	struct squashfs_stream *stream = msblk->stream;
 
 	mutex_lock(&stream->mutex);
-	res = msblk->decompressor->decompress(msblk, stream->stream, buffer,
-		bh, b, offset, length, srclength, pages);
+	res = msblk->decompressor->decompress(msblk, stream->stream, bh, b,
+		offset, length, output);
 	mutex_unlock(&stream->mutex);
 
 	if (res < 0)
diff --git a/fs/squashfs/lzo_wrapper.c b/fs/squashfs/lzo_wrapper.c
index 75c3b5779172..244b9fbfff7b 100644
--- a/fs/squashfs/lzo_wrapper.c
+++ b/fs/squashfs/lzo_wrapper.c
@@ -31,6 +31,7 @@
 #include "squashfs_fs_sb.h"
 #include "squashfs.h"
 #include "decompressor.h"
+#include "page_actor.h"
 
 struct squashfs_lzo {
 	void	*input;
@@ -75,13 +76,13 @@ static void lzo_free(void *strm)
 
 
 static int lzo_uncompress(struct squashfs_sb_info *msblk, void *strm,
-	void **buffer, struct buffer_head **bh, int b, int offset, int length,
-	int srclength, int pages)
+	struct buffer_head **bh, int b, int offset, int length,
+	struct squashfs_page_actor *output)
 {
 	struct squashfs_lzo *stream = strm;
-	void *buff = stream->input;
+	void *buff = stream->input, *data;
 	int avail, i, bytes = length, res;
-	size_t out_len = srclength;
+	size_t out_len = output->length;
 
 	for (i = 0; i < b; i++) {
 		avail = min(bytes, msblk->devblksize - offset);
@@ -98,12 +99,20 @@ static int lzo_uncompress(struct squashfs_sb_info *msblk, void *strm,
 		goto failed;
 
 	res = bytes = (int)out_len;
-	for (i = 0, buff = stream->output; bytes && i < pages; i++) {
-		avail = min_t(int, bytes, PAGE_CACHE_SIZE);
-		memcpy(buffer[i], buff, avail);
-		buff += avail;
-		bytes -= avail;
+	data = squashfs_first_page(output);
+	buff = stream->output;
+	while (data) {
+		if (bytes <= PAGE_CACHE_SIZE) {
+			memcpy(data, buff, bytes);
+			break;
+		} else {
+			memcpy(data, buff, PAGE_CACHE_SIZE);
+			buff += PAGE_CACHE_SIZE;
+			bytes -= PAGE_CACHE_SIZE;
+			data = squashfs_next_page(output);
+		}
 	}
+	squashfs_finish_page(output);
 
 	return res;
 
diff --git a/fs/squashfs/page_actor.h b/fs/squashfs/page_actor.h
new file mode 100644
index 000000000000..5b0ba5a7133a
--- /dev/null
+++ b/fs/squashfs/page_actor.h
@@ -0,0 +1,49 @@
+#ifndef PAGE_ACTOR_H
+#define PAGE_ACTOR_H
+/*
+ * Copyright (c) 2013
+ * Phillip Lougher <phillip@squashfs.org.uk>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ */
+
+struct squashfs_page_actor {
+	void	**page;
+	int	pages;
+	int	length;
+	int	next_page;
+};
+
+static inline struct squashfs_page_actor *squashfs_page_actor_init(void **page,
+	int pages, int length)
+{
+	struct squashfs_page_actor *actor = kmalloc(sizeof(*actor), GFP_KERNEL);
+
+	if (actor == NULL)
+		return NULL;
+
+	actor->length = length ? : pages * PAGE_CACHE_SIZE;
+	actor->page = page;
+	actor->pages = pages;
+	actor->next_page = 0;
+	return actor;
+}
+
+static inline void *squashfs_first_page(struct squashfs_page_actor *actor)
+{
+	actor->next_page = 1;
+	return actor->page[0];
+}
+
+static inline void *squashfs_next_page(struct squashfs_page_actor *actor)
+{
+	return actor->next_page == actor->pages ? NULL :
+		actor->page[actor->next_page++];
+}
+
+static inline void squashfs_finish_page(struct squashfs_page_actor *actor)
+{
+	/* empty */
+}
+#endif
diff --git a/fs/squashfs/squashfs.h b/fs/squashfs/squashfs.h
index 2e2751df8452..6a97e63ca173 100644
--- a/fs/squashfs/squashfs.h
+++ b/fs/squashfs/squashfs.h
@@ -28,8 +28,8 @@
 #define WARNING(s, args...)	pr_warning("SQUASHFS: "s, ## args)
 
 /* block.c */
-extern int squashfs_read_data(struct super_block *, void **, u64, int, u64 *,
-				int, int);
+extern int squashfs_read_data(struct super_block *, u64, int, u64 *,
+				struct squashfs_page_actor *);
 
 /* cache.c */
 extern struct squashfs_cache *squashfs_cache_init(char *, int, int);
@@ -53,8 +53,8 @@ extern void *squashfs_decompressor_setup(struct super_block *, unsigned short);
 /* decompressor_xxx.c */
 extern void *squashfs_decompressor_create(struct squashfs_sb_info *, void *);
 extern void squashfs_decompressor_destroy(struct squashfs_sb_info *);
-extern int squashfs_decompress(struct squashfs_sb_info *, void **,
-	struct buffer_head **, int, int, int, int, int);
+extern int squashfs_decompress(struct squashfs_sb_info *, struct buffer_head **,
+	int, int, int, struct squashfs_page_actor *);
 extern int squashfs_max_decompressors(void);
 
 /* export.c */
diff --git a/fs/squashfs/squashfs_fs_sb.h b/fs/squashfs/squashfs_fs_sb.h
index 9cdcf4150d59..1da565cb50c3 100644
--- a/fs/squashfs/squashfs_fs_sb.h
+++ b/fs/squashfs/squashfs_fs_sb.h
@@ -50,6 +50,7 @@ struct squashfs_cache_entry {
 	wait_queue_head_t	wait_queue;
 	struct squashfs_cache	*cache;
 	void			**data;
+	struct squashfs_page_actor	*actor;
 };
 
 struct squashfs_sb_info {
diff --git a/fs/squashfs/xz_wrapper.c b/fs/squashfs/xz_wrapper.c
index 5d1d07cca6b4..c609624e4b8a 100644
--- a/fs/squashfs/xz_wrapper.c
+++ b/fs/squashfs/xz_wrapper.c
@@ -32,6 +32,7 @@
 #include "squashfs_fs_sb.h"
 #include "squashfs.h"
 #include "decompressor.h"
+#include "page_actor.h"
 
 struct squashfs_xz {
 	struct xz_dec *state;
@@ -129,11 +130,11 @@ static void squashfs_xz_free(void *strm)
 
 
 static int squashfs_xz_uncompress(struct squashfs_sb_info *msblk, void *strm,
-	void **buffer, struct buffer_head **bh, int b, int offset, int length,
-	int srclength, int pages)
+	struct buffer_head **bh, int b, int offset, int length,
+	struct squashfs_page_actor *output)
 {
 	enum xz_ret xz_err;
-	int avail, total = 0, k = 0, page = 0;
+	int avail, total = 0, k = 0;
 	struct squashfs_xz *stream = strm;
 
 	xz_dec_reset(stream->state);
@@ -141,7 +142,7 @@ static int squashfs_xz_uncompress(struct squashfs_sb_info *msblk, void *strm,
 	stream->buf.in_size = 0;
 	stream->buf.out_pos = 0;
 	stream->buf.out_size = PAGE_CACHE_SIZE;
-	stream->buf.out = buffer[page++];
+	stream->buf.out = squashfs_first_page(output);
 
 	do {
 		if (stream->buf.in_pos == stream->buf.in_size && k < b) {
@@ -153,11 +154,12 @@ static int squashfs_xz_uncompress(struct squashfs_sb_info *msblk, void *strm,
 			offset = 0;
 		}
 
-		if (stream->buf.out_pos == stream->buf.out_size
-							&& page < pages) {
-			stream->buf.out = buffer[page++];
-			stream->buf.out_pos = 0;
-			total += PAGE_CACHE_SIZE;
+		if (stream->buf.out_pos == stream->buf.out_size) {
+			stream->buf.out = squashfs_next_page(output);
+			if (stream->buf.out != NULL) {
+				stream->buf.out_pos = 0;
+				total += PAGE_CACHE_SIZE;
+			}
 		}
 
 		xz_err = xz_dec_run(stream->state, &stream->buf);
@@ -166,6 +168,8 @@ static int squashfs_xz_uncompress(struct squashfs_sb_info *msblk, void *strm,
 			put_bh(bh[k++]);
 	} while (xz_err == XZ_OK);
 
+	squashfs_finish_page(output);
+
 	if (xz_err != XZ_STREAM_END || k < b)
 		goto out;
 
diff --git a/fs/squashfs/zlib_wrapper.c b/fs/squashfs/zlib_wrapper.c
index bb049027d15c..8727caba6882 100644
--- a/fs/squashfs/zlib_wrapper.c
+++ b/fs/squashfs/zlib_wrapper.c
@@ -32,6 +32,7 @@
 #include "squashfs_fs_sb.h"
 #include "squashfs.h"
 #include "decompressor.h"
+#include "page_actor.h"
 
 static void *zlib_init(struct squashfs_sb_info *dummy, void *buff)
 {
@@ -62,14 +63,14 @@ static void zlib_free(void *strm)
 
 
 static int zlib_uncompress(struct squashfs_sb_info *msblk, void *strm,
-	void **buffer, struct buffer_head **bh, int b, int offset, int length,
-	int srclength, int pages)
+	struct buffer_head **bh, int b, int offset, int length,
+	struct squashfs_page_actor *output)
 {
-	int zlib_err, zlib_init = 0;
-	int k = 0, page = 0;
+	int zlib_err, zlib_init = 0, k = 0;
 	z_stream *stream = strm;
 
-	stream->avail_out = 0;
+	stream->avail_out = PAGE_CACHE_SIZE;
+	stream->next_out = squashfs_first_page(output);
 	stream->avail_in = 0;
 
 	do {
@@ -81,15 +82,18 @@ static int zlib_uncompress(struct squashfs_sb_info *msblk, void *strm,
 			offset = 0;
 		}
 
-		if (stream->avail_out == 0 && page < pages) {
-			stream->next_out = buffer[page++];
-			stream->avail_out = PAGE_CACHE_SIZE;
+		if (stream->avail_out == 0) {
+			stream->next_out = squashfs_next_page(output);
+			if (stream->next_out != NULL)
+				stream->avail_out = PAGE_CACHE_SIZE;
 		}
 
 		if (!zlib_init) {
 			zlib_err = zlib_inflateInit(stream);
-			if (zlib_err != Z_OK)
+			if (zlib_err != Z_OK) {
+				squashfs_finish_page(output);
 				goto out;
+			}
 			zlib_init = 1;
 		}
 
@@ -99,6 +103,8 @@ static int zlib_uncompress(struct squashfs_sb_info *msblk, void *strm,
 			put_bh(bh[k++]);
 	} while (zlib_err == Z_OK);
 
+	squashfs_finish_page(output);
+
 	if (zlib_err != Z_STREAM_END)
 		goto out;
 
-- 
cgit 


From 5f55dbc0c5c466a9cdfa4da7ac1bfe351c7fc52a Mon Sep 17 00:00:00 2001
From: Phillip Lougher <phillip@squashfs.org.uk>
Date: Thu, 31 Oct 2013 19:24:27 +0000
Subject: Squashfs: Restructure squashfs_readpage()

Restructure squashfs_readpage() splitting it into separate
functions for datablocks, fragments and sparse blocks.

Move the memcpying (from squashfs cache entry) implementation of
squashfs_readpage_block into file_cache.c

This allows different implementations to be supported.

Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
Reviewed-by: Minchan Kim <minchan@kernel.org>
---
 fs/squashfs/Makefile     |   2 +-
 fs/squashfs/file.c       | 142 ++++++++++++++++++++++++-----------------------
 fs/squashfs/file_cache.c |  38 +++++++++++++
 fs/squashfs/squashfs.h   |   7 +++
 4 files changed, 118 insertions(+), 71 deletions(-)
 create mode 100644 fs/squashfs/file_cache.c

diff --git a/fs/squashfs/Makefile b/fs/squashfs/Makefile
index 5833b96ee69c..e01ba1126c89 100644
--- a/fs/squashfs/Makefile
+++ b/fs/squashfs/Makefile
@@ -4,7 +4,7 @@
 
 obj-$(CONFIG_SQUASHFS) += squashfs.o
 squashfs-y += block.o cache.o dir.o export.o file.o fragment.o id.o inode.o
-squashfs-y += namei.o super.o symlink.o decompressor.o
+squashfs-y += namei.o super.o symlink.o decompressor.o file_cache.o
 squashfs-$(CONFIG_SQUASHFS_DECOMP_SINGLE) += decompressor_single.o
 squashfs-$(CONFIG_SQUASHFS_DECOMP_MULTI) += decompressor_multi.o
 squashfs-$(CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU) += decompressor_multi_percpu.o
diff --git a/fs/squashfs/file.c b/fs/squashfs/file.c
index 8ca62c28fe12..e5c9689062ba 100644
--- a/fs/squashfs/file.c
+++ b/fs/squashfs/file.c
@@ -370,77 +370,15 @@ static int read_blocklist(struct inode *inode, int index, u64 *block)
 	return le32_to_cpu(size);
 }
 
-
-static int squashfs_readpage(struct file *file, struct page *page)
+/* Copy data into page cache  */
+void squashfs_copy_cache(struct page *page, struct squashfs_cache_entry *buffer,
+	int bytes, int offset)
 {
 	struct inode *inode = page->mapping->host;
 	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;
-	int bytes, i, offset = 0, sparse = 0;
-	struct squashfs_cache_entry *buffer = NULL;
 	void *pageaddr;
-
-	int mask = (1 << (msblk->block_log - PAGE_CACHE_SHIFT)) - 1;
-	int index = page->index >> (msblk->block_log - PAGE_CACHE_SHIFT);
-	int start_index = page->index & ~mask;
-	int end_index = start_index | mask;
-	int file_end = i_size_read(inode) >> msblk->block_log;
-
-	TRACE("Entered squashfs_readpage, page index %lx, start block %llx\n",
-				page->index, squashfs_i(inode)->start);
-
-	if (page->index >= ((i_size_read(inode) + PAGE_CACHE_SIZE - 1) >>
-					PAGE_CACHE_SHIFT))
-		goto out;
-
-	if (index < file_end || squashfs_i(inode)->fragment_block ==
-					SQUASHFS_INVALID_BLK) {
-		/*
-		 * Reading a datablock from disk.  Need to read block list
-		 * to get location and block size.
-		 */
-		u64 block = 0;
-		int bsize = read_blocklist(inode, index, &block);
-		if (bsize < 0)
-			goto error_out;
-
-		if (bsize == 0) { /* hole */
-			bytes = index == file_end ?
-				(i_size_read(inode) & (msblk->block_size - 1)) :
-				 msblk->block_size;
-			sparse = 1;
-		} else {
-			/*
-			 * Read and decompress datablock.
-			 */
-			buffer = squashfs_get_datablock(inode->i_sb,
-								block, bsize);
-			if (buffer->error) {
-				ERROR("Unable to read page, block %llx, size %x"
-					"\n", block, bsize);
-				squashfs_cache_put(buffer);
-				goto error_out;
-			}
-			bytes = buffer->length;
-		}
-	} else {
-		/*
-		 * Datablock is stored inside a fragment (tail-end packed
-		 * block).
-		 */
-		buffer = squashfs_get_fragment(inode->i_sb,
-				squashfs_i(inode)->fragment_block,
-				squashfs_i(inode)->fragment_size);
-
-		if (buffer->error) {
-			ERROR("Unable to read page, block %llx, size %x\n",
-				squashfs_i(inode)->fragment_block,
-				squashfs_i(inode)->fragment_size);
-			squashfs_cache_put(buffer);
-			goto error_out;
-		}
-		bytes = i_size_read(inode) & (msblk->block_size - 1);
-		offset = squashfs_i(inode)->fragment_offset;
-	}
+	int i, mask = (1 << (msblk->block_log - PAGE_CACHE_SHIFT)) - 1;
+	int start_index = page->index & ~mask, end_index = start_index | mask;
 
 	/*
 	 * Loop copying datablock into pages.  As the datablock likely covers
@@ -451,7 +389,7 @@ static int squashfs_readpage(struct file *file, struct page *page)
 	for (i = start_index; i <= end_index && bytes > 0; i++,
 			bytes -= PAGE_CACHE_SIZE, offset += PAGE_CACHE_SIZE) {
 		struct page *push_page;
-		int avail = sparse ? 0 : min_t(int, bytes, PAGE_CACHE_SIZE);
+		int avail = buffer ? min_t(int, bytes, PAGE_CACHE_SIZE) : 0;
 
 		TRACE("bytes %d, i %d, available_bytes %d\n", bytes, i, avail);
 
@@ -475,11 +413,75 @@ skip_page:
 		if (i != page->index)
 			page_cache_release(push_page);
 	}
+}
+
+/* Read datablock stored packed inside a fragment (tail-end packed block) */
+static int squashfs_readpage_fragment(struct page *page)
+{
+	struct inode *inode = page->mapping->host;
+	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;
+	struct squashfs_cache_entry *buffer = squashfs_get_fragment(inode->i_sb,
+		squashfs_i(inode)->fragment_block,
+		squashfs_i(inode)->fragment_size);
+	int res = buffer->error;
+
+	if (res)
+		ERROR("Unable to read page, block %llx, size %x\n",
+			squashfs_i(inode)->fragment_block,
+			squashfs_i(inode)->fragment_size);
+	else
+		squashfs_copy_cache(page, buffer, i_size_read(inode) &
+			(msblk->block_size - 1),
+			squashfs_i(inode)->fragment_offset);
+
+	squashfs_cache_put(buffer);
+	return res;
+}
 
-	if (!sparse)
-		squashfs_cache_put(buffer);
+static int squashfs_readpage_sparse(struct page *page, int index, int file_end)
+{
+	struct inode *inode = page->mapping->host;
+	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;
+	int bytes = index == file_end ?
+			(i_size_read(inode) & (msblk->block_size - 1)) :
+			 msblk->block_size;
 
+	squashfs_copy_cache(page, NULL, bytes, 0);
 	return 0;
+}
+
+static int squashfs_readpage(struct file *file, struct page *page)
+{
+	struct inode *inode = page->mapping->host;
+	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;
+	int index = page->index >> (msblk->block_log - PAGE_CACHE_SHIFT);
+	int file_end = i_size_read(inode) >> msblk->block_log;
+	int res;
+	void *pageaddr;
+
+	TRACE("Entered squashfs_readpage, page index %lx, start block %llx\n",
+				page->index, squashfs_i(inode)->start);
+
+	if (page->index >= ((i_size_read(inode) + PAGE_CACHE_SIZE - 1) >>
+					PAGE_CACHE_SHIFT))
+		goto out;
+
+	if (index < file_end || squashfs_i(inode)->fragment_block ==
+					SQUASHFS_INVALID_BLK) {
+		u64 block = 0;
+		int bsize = read_blocklist(inode, index, &block);
+		if (bsize < 0)
+			goto error_out;
+
+		if (bsize == 0)
+			res = squashfs_readpage_sparse(page, index, file_end);
+		else
+			res = squashfs_readpage_block(page, block, bsize);
+	} else
+		res = squashfs_readpage_fragment(page);
+
+	if (!res)
+		return 0;
 
 error_out:
 	SetPageError(page);
diff --git a/fs/squashfs/file_cache.c b/fs/squashfs/file_cache.c
new file mode 100644
index 000000000000..f2310d2a2019
--- /dev/null
+++ b/fs/squashfs/file_cache.c
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2013
+ * Phillip Lougher <phillip@squashfs.org.uk>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ */
+
+#include <linux/fs.h>
+#include <linux/vfs.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/pagemap.h>
+#include <linux/mutex.h>
+
+#include "squashfs_fs.h"
+#include "squashfs_fs_sb.h"
+#include "squashfs_fs_i.h"
+#include "squashfs.h"
+
+/* Read separately compressed datablock and memcopy into page cache */
+int squashfs_readpage_block(struct page *page, u64 block, int bsize)
+{
+	struct inode *i = page->mapping->host;
+	struct squashfs_cache_entry *buffer = squashfs_get_datablock(i->i_sb,
+		block, bsize);
+	int res = buffer->error;
+
+	if (res)
+		ERROR("Unable to read page, block %llx, size %x\n", block,
+			bsize);
+	else
+		squashfs_copy_cache(page, buffer, buffer->length, 0);
+
+	squashfs_cache_put(buffer);
+	return res;
+}
diff --git a/fs/squashfs/squashfs.h b/fs/squashfs/squashfs.h
index 6a97e63ca173..9e1bb79f7e6f 100644
--- a/fs/squashfs/squashfs.h
+++ b/fs/squashfs/squashfs.h
@@ -66,6 +66,13 @@ extern int squashfs_frag_lookup(struct super_block *, unsigned int, u64 *);
 extern __le64 *squashfs_read_fragment_index_table(struct super_block *,
 				u64, u64, unsigned int);
 
+/* file.c */
+void squashfs_copy_cache(struct page *, struct squashfs_cache_entry *, int,
+				int);
+
+/* file_xxx.c */
+extern int squashfs_readpage_block(struct page *, u64, int);
+
 /* id.c */
 extern int squashfs_get_id(struct super_block *, unsigned int, unsigned int *);
 extern __le64 *squashfs_read_id_index_table(struct super_block *, u64, u64,
-- 
cgit 


From 0d455c12c6428647547bacccaaced3cae0f35570 Mon Sep 17 00:00:00 2001
From: Phillip Lougher <phillip@squashfs.org.uk>
Date: Wed, 13 Nov 2013 02:04:19 +0000
Subject: Squashfs: Directly decompress into the page cache for file data

This introduces an implementation of squashfs_readpage_block()
that directly decompresses into the page cache.

This uses the previously added page handler abstraction to push
down the necessary kmap_atomic/kunmap_atomic operations on the
page cache buffers into the decompressors.  This enables
direct copying into the page cache without using the slow
kmap/kunmap calls.

The code detects when multiple threads are racing in
squashfs_readpage() to decompress the same block, and avoids
this regression by falling back to using an intermediate
buffer.

This patch enhances the performance of Squashfs significantly
when multiple processes are accessing the filesystem simultaneously
because it not only reduces memcopying, but it more importantly
eliminates the lock contention on the intermediate buffer.

Using single-thread decompression.

        dd if=file1 of=/dev/null bs=4096 &
        dd if=file2 of=/dev/null bs=4096 &
        dd if=file3 of=/dev/null bs=4096 &
        dd if=file4 of=/dev/null bs=4096

Before:

629145600 bytes (629 MB) copied, 45.8046 s, 13.7 MB/s

After:

629145600 bytes (629 MB) copied, 9.29414 s, 67.7 MB/s

Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
Reviewed-by: Minchan Kim <minchan@kernel.org>
---
 fs/squashfs/Kconfig       |  28 ++++++++
 fs/squashfs/Makefile      |   4 +-
 fs/squashfs/file_direct.c | 173 ++++++++++++++++++++++++++++++++++++++++++++++
 fs/squashfs/page_actor.c  | 100 +++++++++++++++++++++++++++
 fs/squashfs/page_actor.h  |  32 +++++++++
 5 files changed, 336 insertions(+), 1 deletion(-)
 create mode 100644 fs/squashfs/file_direct.c
 create mode 100644 fs/squashfs/page_actor.c

diff --git a/fs/squashfs/Kconfig b/fs/squashfs/Kconfig
index 159bd6676dc2..b6fa8657dcbc 100644
--- a/fs/squashfs/Kconfig
+++ b/fs/squashfs/Kconfig
@@ -25,6 +25,34 @@ config SQUASHFS
 
 	  If unsure, say N.
 
+choice
+	prompt "File decompression options"
+	depends on SQUASHFS
+	help
+	  Squashfs now supports two options for decompressing file
+	  data.  Traditionally Squashfs has decompressed into an
+	  intermediate buffer and then memcopied it into the page cache.
+	  Squashfs now supports the ability to decompress directly into
+	  the page cache.
+
+	  If unsure, select "Decompress file data into an intermediate buffer"
+
+config SQUASHFS_FILE_CACHE
+	bool "Decompress file data into an intermediate buffer"
+	help
+	  Decompress file data into an intermediate buffer and then
+	  memcopy it into the page cache.
+
+config SQUASHFS_FILE_DIRECT
+	bool "Decompress files directly into the page cache"
+	help
+	  Directly decompress file data into the page cache.
+	  Doing so can significantly improve performance because
+	  it eliminates a memcpy and it also removes the lock contention
+	  on the single buffer.
+
+endchoice
+
 choice
 	prompt "Decompressor parallelisation options"
 	depends on SQUASHFS
diff --git a/fs/squashfs/Makefile b/fs/squashfs/Makefile
index e01ba1126c89..4132520b4ff2 100644
--- a/fs/squashfs/Makefile
+++ b/fs/squashfs/Makefile
@@ -4,7 +4,9 @@
 
 obj-$(CONFIG_SQUASHFS) += squashfs.o
 squashfs-y += block.o cache.o dir.o export.o file.o fragment.o id.o inode.o
-squashfs-y += namei.o super.o symlink.o decompressor.o file_cache.o
+squashfs-y += namei.o super.o symlink.o decompressor.o
+squashfs-$(CONFIG_SQUASHFS_FILE_CACHE) += file_cache.o
+squashfs-$(CONFIG_SQUASHFS_FILE_DIRECT) += file_direct.o page_actor.o
 squashfs-$(CONFIG_SQUASHFS_DECOMP_SINGLE) += decompressor_single.o
 squashfs-$(CONFIG_SQUASHFS_DECOMP_MULTI) += decompressor_multi.o
 squashfs-$(CONFIG_SQUASHFS_DECOMP_MULTI_PERCPU) += decompressor_multi_percpu.o
diff --git a/fs/squashfs/file_direct.c b/fs/squashfs/file_direct.c
new file mode 100644
index 000000000000..2943b2bfae48
--- /dev/null
+++ b/fs/squashfs/file_direct.c
@@ -0,0 +1,173 @@
+/*
+ * Copyright (c) 2013
+ * Phillip Lougher <phillip@squashfs.org.uk>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ */
+
+#include <linux/fs.h>
+#include <linux/vfs.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/pagemap.h>
+#include <linux/mutex.h>
+
+#include "squashfs_fs.h"
+#include "squashfs_fs_sb.h"
+#include "squashfs_fs_i.h"
+#include "squashfs.h"
+#include "page_actor.h"
+
+static int squashfs_read_cache(struct page *target_page, u64 block, int bsize,
+	int pages, struct page **page);
+
+/* Read separately compressed datablock directly into page cache */
+int squashfs_readpage_block(struct page *target_page, u64 block, int bsize)
+
+{
+	struct inode *inode = target_page->mapping->host;
+	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;
+
+	int file_end = (i_size_read(inode) - 1) >> PAGE_CACHE_SHIFT;
+	int mask = (1 << (msblk->block_log - PAGE_CACHE_SHIFT)) - 1;
+	int start_index = target_page->index & ~mask;
+	int end_index = start_index | mask;
+	int i, n, pages, missing_pages, bytes, res = -ENOMEM;
+	struct page **page;
+	struct squashfs_page_actor *actor;
+	void *pageaddr;
+
+	if (end_index > file_end)
+		end_index = file_end;
+
+	pages = end_index - start_index + 1;
+
+	page = kmalloc(sizeof(void *) * pages, GFP_KERNEL);
+	if (page == NULL)
+		return res;
+
+	/*
+	 * Create a "page actor" which will kmap and kunmap the
+	 * page cache pages appropriately within the decompressor
+	 */
+	actor = squashfs_page_actor_init_special(page, pages, 0);
+	if (actor == NULL)
+		goto out;
+
+	/* Try to grab all the pages covered by the Squashfs block */
+	for (missing_pages = 0, i = 0, n = start_index; i < pages; i++, n++) {
+		page[i] = (n == target_page->index) ? target_page :
+			grab_cache_page_nowait(target_page->mapping, n);
+
+		if (page[i] == NULL) {
+			missing_pages++;
+			continue;
+		}
+
+		if (PageUptodate(page[i])) {
+			unlock_page(page[i]);
+			page_cache_release(page[i]);
+			page[i] = NULL;
+			missing_pages++;
+		}
+	}
+
+	if (missing_pages) {
+		/*
+		 * Couldn't get one or more pages, this page has either
+		 * been VM reclaimed, but others are still in the page cache
+		 * and uptodate, or we're racing with another thread in
+		 * squashfs_readpage also trying to grab them.  Fall back to
+		 * using an intermediate buffer.
+		 */
+		res = squashfs_read_cache(target_page, block, bsize, pages,
+								page);
+		goto out;
+	}
+
+	/* Decompress directly into the page cache buffers */
+	res = squashfs_read_data(inode->i_sb, block, bsize, NULL, actor);
+	if (res < 0)
+		goto mark_errored;
+
+	/* Last page may have trailing bytes not filled */
+	bytes = res % PAGE_CACHE_SIZE;
+	if (bytes) {
+		pageaddr = kmap_atomic(page[pages - 1]);
+		memset(pageaddr + bytes, 0, PAGE_CACHE_SIZE - bytes);
+		kunmap_atomic(pageaddr);
+	}
+
+	/* Mark pages as uptodate, unlock and release */
+	for (i = 0; i < pages; i++) {
+		flush_dcache_page(page[i]);
+		SetPageUptodate(page[i]);
+		unlock_page(page[i]);
+		if (page[i] != target_page)
+			page_cache_release(page[i]);
+	}
+
+	kfree(actor);
+	kfree(page);
+
+	return 0;
+
+mark_errored:
+	/* Decompression failed, mark pages as errored.  Target_page is
+	 * dealt with by the caller
+	 */
+	for (i = 0; i < pages; i++) {
+		if (page[i] == target_page)
+			continue;
+		flush_dcache_page(page[i]);
+		SetPageError(page[i]);
+		unlock_page(page[i]);
+		page_cache_release(page[i]);
+	}
+
+out:
+	kfree(actor);
+	kfree(page);
+	return res;
+}
+
+
+static int squashfs_read_cache(struct page *target_page, u64 block, int bsize,
+	int pages, struct page **page)
+{
+	struct inode *i = target_page->mapping->host;
+	struct squashfs_cache_entry *buffer = squashfs_get_datablock(i->i_sb,
+						 block, bsize);
+	int bytes = buffer->length, res = buffer->error, n, offset = 0;
+	void *pageaddr;
+
+	if (res) {
+		ERROR("Unable to read page, block %llx, size %x\n", block,
+			bsize);
+		goto out;
+	}
+
+	for (n = 0; n < pages && bytes > 0; n++,
+			bytes -= PAGE_CACHE_SIZE, offset += PAGE_CACHE_SIZE) {
+		int avail = min_t(int, bytes, PAGE_CACHE_SIZE);
+
+		if (page[n] == NULL)
+			continue;
+
+		pageaddr = kmap_atomic(page[n]);
+		squashfs_copy_data(pageaddr, buffer, offset, avail);
+		memset(pageaddr + avail, 0, PAGE_CACHE_SIZE - avail);
+		kunmap_atomic(pageaddr);
+		flush_dcache_page(page[n]);
+		SetPageUptodate(page[n]);
+		unlock_page(page[n]);
+		if (page[n] != target_page)
+			page_cache_release(page[n]);
+	}
+
+out:
+	squashfs_cache_put(buffer);
+	return res;
+}
diff --git a/fs/squashfs/page_actor.c b/fs/squashfs/page_actor.c
new file mode 100644
index 000000000000..5a1c11f56441
--- /dev/null
+++ b/fs/squashfs/page_actor.c
@@ -0,0 +1,100 @@
+/*
+ * Copyright (c) 2013
+ * Phillip Lougher <phillip@squashfs.org.uk>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2. See
+ * the COPYING file in the top-level directory.
+ */
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/pagemap.h>
+#include "page_actor.h"
+
+/*
+ * This file contains implementations of page_actor for decompressing into
+ * an intermediate buffer, and for decompressing directly into the
+ * page cache.
+ *
+ * Calling code should avoid sleeping between calls to squashfs_first_page()
+ * and squashfs_finish_page().
+ */
+
+/* Implementation of page_actor for decompressing into intermediate buffer */
+static void *cache_first_page(struct squashfs_page_actor *actor)
+{
+	actor->next_page = 1;
+	return actor->buffer[0];
+}
+
+static void *cache_next_page(struct squashfs_page_actor *actor)
+{
+	if (actor->next_page == actor->pages)
+		return NULL;
+
+	return actor->buffer[actor->next_page++];
+}
+
+static void cache_finish_page(struct squashfs_page_actor *actor)
+{
+	/* empty */
+}
+
+struct squashfs_page_actor *squashfs_page_actor_init(void **buffer,
+	int pages, int length)
+{
+	struct squashfs_page_actor *actor = kmalloc(sizeof(*actor), GFP_KERNEL);
+
+	if (actor == NULL)
+		return NULL;
+
+	actor->length = length ? : pages * PAGE_CACHE_SIZE;
+	actor->buffer = buffer;
+	actor->pages = pages;
+	actor->next_page = 0;
+	actor->squashfs_first_page = cache_first_page;
+	actor->squashfs_next_page = cache_next_page;
+	actor->squashfs_finish_page = cache_finish_page;
+	return actor;
+}
+
+/* Implementation of page_actor for decompressing directly into page cache. */
+static void *direct_first_page(struct squashfs_page_actor *actor)
+{
+	actor->next_page = 1;
+	return actor->pageaddr = kmap_atomic(actor->page[0]);
+}
+
+static void *direct_next_page(struct squashfs_page_actor *actor)
+{
+	if (actor->pageaddr)
+		kunmap_atomic(actor->pageaddr);
+
+	return actor->pageaddr = actor->next_page == actor->pages ? NULL :
+		kmap_atomic(actor->page[actor->next_page++]);
+}
+
+static void direct_finish_page(struct squashfs_page_actor *actor)
+{
+	if (actor->pageaddr)
+		kunmap_atomic(actor->pageaddr);
+}
+
+struct squashfs_page_actor *squashfs_page_actor_init_special(struct page **page,
+	int pages, int length)
+{
+	struct squashfs_page_actor *actor = kmalloc(sizeof(*actor), GFP_KERNEL);
+
+	if (actor == NULL)
+		return NULL;
+
+	actor->length = length ? : pages * PAGE_CACHE_SIZE;
+	actor->page = page;
+	actor->pages = pages;
+	actor->next_page = 0;
+	actor->pageaddr = NULL;
+	actor->squashfs_first_page = direct_first_page;
+	actor->squashfs_next_page = direct_next_page;
+	actor->squashfs_finish_page = direct_finish_page;
+	return actor;
+}
diff --git a/fs/squashfs/page_actor.h b/fs/squashfs/page_actor.h
index 5b0ba5a7133a..26dd82008b82 100644
--- a/fs/squashfs/page_actor.h
+++ b/fs/squashfs/page_actor.h
@@ -8,6 +8,7 @@
  * the COPYING file in the top-level directory.
  */
 
+#ifndef CONFIG_SQUASHFS_FILE_DIRECT
 struct squashfs_page_actor {
 	void	**page;
 	int	pages;
@@ -46,4 +47,35 @@ static inline void squashfs_finish_page(struct squashfs_page_actor *actor)
 {
 	/* empty */
 }
+#else
+struct squashfs_page_actor {
+	union {
+		void		**buffer;
+		struct page	**page;
+	};
+	void	*pageaddr;
+	void    *(*squashfs_first_page)(struct squashfs_page_actor *);
+	void    *(*squashfs_next_page)(struct squashfs_page_actor *);
+	void    (*squashfs_finish_page)(struct squashfs_page_actor *);
+	int	pages;
+	int	length;
+	int	next_page;
+};
+
+extern struct squashfs_page_actor *squashfs_page_actor_init(void **, int, int);
+extern struct squashfs_page_actor *squashfs_page_actor_init_special(struct page
+							 **, int, int);
+static inline void *squashfs_first_page(struct squashfs_page_actor *actor)
+{
+	return actor->squashfs_first_page(actor);
+}
+static inline void *squashfs_next_page(struct squashfs_page_actor *actor)
+{
+	return actor->squashfs_next_page(actor);
+}
+static inline void squashfs_finish_page(struct squashfs_page_actor *actor)
+{
+	actor->squashfs_finish_page(actor);
+}
+#endif
 #endif
-- 
cgit 


From ed4f381ec15e5f11724cdbc68cffd2c22d1eaebd Mon Sep 17 00:00:00 2001
From: Phillip Lougher <phillip@squashfs.org.uk>
Date: Sun, 10 Nov 2013 00:02:29 +0000
Subject: Squashfs: Check stream is not NULL in decompressor_multi.c

Fix static checker complaint that stream is not checked in
squashfs_decompressor_destroy().

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
Reviewed-by: Minchan Kim <minchan@kernel.org>
---
 fs/squashfs/decompressor_multi.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/fs/squashfs/decompressor_multi.c b/fs/squashfs/decompressor_multi.c
index ae54675a3526..d6008a636479 100644
--- a/fs/squashfs/decompressor_multi.c
+++ b/fs/squashfs/decompressor_multi.c
@@ -119,11 +119,10 @@ void squashfs_decompressor_destroy(struct squashfs_sb_info *msblk)
 			kfree(decomp_strm);
 			stream->avail_decomp--;
 		}
+		WARN_ON(stream->avail_decomp);
+		kfree(stream->comp_opts);
+		kfree(stream);
 	}
-
-	WARN_ON(stream->avail_decomp);
-	kfree(stream->comp_opts);
-	kfree(stream);
 }
 
 
-- 
cgit 


From 04f3b31bff720f01d684100c868c88f67ced8dc8 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Wed, 13 Nov 2013 18:54:45 -0800
Subject: iscsi-target: Convert iscsi_session statistics to atomic_long_t

This patch converts a handful of iscsi_session statistics to type
atomic_long_t, instead of using iscsi_session->session_stats_lock
when incrementing these values.

More importantly, go ahead and drop the spinlock usage within
iscsit_setup_scsi_cmd(), iscsit_check_dataout_hdr(),
iscsit_send_datain(), and iscsit_build_rsp_pdu() fast-path code.

(Squash in Roland's  target: Remove write-only stats fields and lock
from struct se_node_acl)

Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/iscsi/iscsi_target.c       | 35 +++++--------------------------
 drivers/target/iscsi/iscsi_target_core.h  | 13 ++++++------
 drivers/target/iscsi/iscsi_target_erl0.c  |  2 +-
 drivers/target/iscsi/iscsi_target_login.c |  1 -
 drivers/target/iscsi/iscsi_target_stat.c  | 22 ++++++++++---------
 drivers/target/iscsi/iscsi_target_util.c  |  2 +-
 6 files changed, 25 insertions(+), 50 deletions(-)

diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index ba9787d24c12..bf76fc46fc52 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -800,14 +800,7 @@ int iscsit_setup_scsi_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 	int iscsi_task_attr;
 	int sam_task_attr;
 
-	spin_lock_bh(&conn->sess->session_stats_lock);
-	conn->sess->cmd_pdus++;
-	if (conn->sess->se_sess->se_node_acl) {
-		spin_lock(&conn->sess->se_sess->se_node_acl->stats_lock);
-		conn->sess->se_sess->se_node_acl->num_cmds++;
-		spin_unlock(&conn->sess->se_sess->se_node_acl->stats_lock);
-	}
-	spin_unlock_bh(&conn->sess->session_stats_lock);
+	atomic_long_inc(&conn->sess->cmd_pdus);
 
 	hdr			= (struct iscsi_scsi_req *) buf;
 	payload_length		= ntoh24(hdr->dlength);
@@ -1254,14 +1247,7 @@ iscsit_check_dataout_hdr(struct iscsi_conn *conn, unsigned char *buf,
 	}
 
 	/* iSCSI write */
-	spin_lock_bh(&conn->sess->session_stats_lock);
-	conn->sess->rx_data_octets += payload_length;
-	if (conn->sess->se_sess->se_node_acl) {
-		spin_lock(&conn->sess->se_sess->se_node_acl->stats_lock);
-		conn->sess->se_sess->se_node_acl->write_bytes += payload_length;
-		spin_unlock(&conn->sess->se_sess->se_node_acl->stats_lock);
-	}
-	spin_unlock_bh(&conn->sess->session_stats_lock);
+	atomic_long_add(payload_length, &conn->sess->rx_data_octets);
 
 	if (payload_length > conn->conn_ops->MaxXmitDataSegmentLength) {
 		pr_err("DataSegmentLength: %u is greater than"
@@ -2631,14 +2617,7 @@ static int iscsit_send_datain(struct iscsi_cmd *cmd, struct iscsi_conn *conn)
 		return -1;
 	}
 
-	spin_lock_bh(&conn->sess->session_stats_lock);
-	conn->sess->tx_data_octets += datain.length;
-	if (conn->sess->se_sess->se_node_acl) {
-		spin_lock(&conn->sess->se_sess->se_node_acl->stats_lock);
-		conn->sess->se_sess->se_node_acl->read_bytes += datain.length;
-		spin_unlock(&conn->sess->se_sess->se_node_acl->stats_lock);
-	}
-	spin_unlock_bh(&conn->sess->session_stats_lock);
+	atomic_long_add(datain.length, &conn->sess->tx_data_octets);
 	/*
 	 * Special case for successfully execution w/ both DATAIN
 	 * and Sense Data.
@@ -3163,9 +3142,7 @@ void iscsit_build_rsp_pdu(struct iscsi_cmd *cmd, struct iscsi_conn *conn,
 	if (inc_stat_sn)
 		cmd->stat_sn = conn->stat_sn++;
 
-	spin_lock_bh(&conn->sess->session_stats_lock);
-	conn->sess->rsp_pdus++;
-	spin_unlock_bh(&conn->sess->session_stats_lock);
+	atomic_long_inc(&conn->sess->rsp_pdus);
 
 	memset(hdr, 0, ISCSI_HDR_LEN);
 	hdr->opcode		= ISCSI_OP_SCSI_CMD_RSP;
@@ -4114,9 +4091,7 @@ restart:
 				 * hit default in the switch below.
 				 */
 				memset(buffer, 0xff, ISCSI_HDR_LEN);
-				spin_lock_bh(&conn->sess->session_stats_lock);
-				conn->sess->conn_digest_errors++;
-				spin_unlock_bh(&conn->sess->session_stats_lock);
+				atomic_long_inc(&conn->sess->conn_digest_errors);
 			} else {
 				pr_debug("Got HeaderDigest CRC32C"
 						" 0x%08x\n", checksum);
diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h
index b03ee2ff31e5..f2094d2f8eef 100644
--- a/drivers/target/iscsi/iscsi_target_core.h
+++ b/drivers/target/iscsi/iscsi_target_core.h
@@ -651,14 +651,13 @@ struct iscsi_session {
 	/* Used for session reference counting */
 	int			session_usage_count;
 	int			session_waiting_on_uc;
-	u32			cmd_pdus;
-	u32			rsp_pdus;
-	u64			tx_data_octets;
-	u64			rx_data_octets;
-	u32			conn_digest_errors;
-	u32			conn_timeout_errors;
+	atomic_long_t		cmd_pdus;
+	atomic_long_t		rsp_pdus;
+	atomic_long_t		tx_data_octets;
+	atomic_long_t		rx_data_octets;
+	atomic_long_t		conn_digest_errors;
+	atomic_long_t		conn_timeout_errors;
 	u64			creation_time;
-	spinlock_t		session_stats_lock;
 	/* Number of active connections */
 	atomic_t		nconn;
 	atomic_t		session_continuation;
diff --git a/drivers/target/iscsi/iscsi_target_erl0.c b/drivers/target/iscsi/iscsi_target_erl0.c
index cbea7f16d625..0d1e6ee3e992 100644
--- a/drivers/target/iscsi/iscsi_target_erl0.c
+++ b/drivers/target/iscsi/iscsi_target_erl0.c
@@ -785,7 +785,7 @@ static void iscsit_handle_time2retain_timeout(unsigned long data)
 		tiqn->sess_err_stats.last_sess_failure_type =
 				ISCSI_SESS_ERR_CXN_TIMEOUT;
 		tiqn->sess_err_stats.cxn_timeout_errors++;
-		sess->conn_timeout_errors++;
+		atomic_long_inc(&sess->conn_timeout_errors);
 		spin_unlock(&tiqn->sess_err_stats.lock);
 	}
 	}
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index 646632aa2002..4eb93b2b6473 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -305,7 +305,6 @@ static int iscsi_login_zero_tsih_s1(
 	}
 
 	sess->creation_time = get_jiffies_64();
-	spin_lock_init(&sess->session_stats_lock);
 	/*
 	 * The FFP CmdSN window values will be allocated from the TPG's
 	 * Initiator Node's ACL once the login has been successfully completed.
diff --git a/drivers/target/iscsi/iscsi_target_stat.c b/drivers/target/iscsi/iscsi_target_stat.c
index f788e8b5e855..103395510307 100644
--- a/drivers/target/iscsi/iscsi_target_stat.c
+++ b/drivers/target/iscsi/iscsi_target_stat.c
@@ -792,7 +792,8 @@ static ssize_t iscsi_stat_sess_show_attr_cmd_pdus(
 	if (se_sess) {
 		sess = se_sess->fabric_sess_ptr;
 		if (sess)
-			ret = snprintf(page, PAGE_SIZE, "%u\n", sess->cmd_pdus);
+			ret = snprintf(page, PAGE_SIZE, "%lu\n",
+				       atomic_long_read(&sess->cmd_pdus));
 	}
 	spin_unlock_bh(&se_nacl->nacl_sess_lock);
 
@@ -815,7 +816,8 @@ static ssize_t iscsi_stat_sess_show_attr_rsp_pdus(
 	if (se_sess) {
 		sess = se_sess->fabric_sess_ptr;
 		if (sess)
-			ret = snprintf(page, PAGE_SIZE, "%u\n", sess->rsp_pdus);
+			ret = snprintf(page, PAGE_SIZE, "%lu\n",
+				       atomic_long_read(&sess->rsp_pdus));
 	}
 	spin_unlock_bh(&se_nacl->nacl_sess_lock);
 
@@ -838,8 +840,8 @@ static ssize_t iscsi_stat_sess_show_attr_txdata_octs(
 	if (se_sess) {
 		sess = se_sess->fabric_sess_ptr;
 		if (sess)
-			ret = snprintf(page, PAGE_SIZE, "%llu\n",
-				(unsigned long long)sess->tx_data_octets);
+			ret = snprintf(page, PAGE_SIZE, "%lu\n",
+				       atomic_long_read(&sess->tx_data_octets));
 	}
 	spin_unlock_bh(&se_nacl->nacl_sess_lock);
 
@@ -862,8 +864,8 @@ static ssize_t iscsi_stat_sess_show_attr_rxdata_octs(
 	if (se_sess) {
 		sess = se_sess->fabric_sess_ptr;
 		if (sess)
-			ret = snprintf(page, PAGE_SIZE, "%llu\n",
-				(unsigned long long)sess->rx_data_octets);
+			ret = snprintf(page, PAGE_SIZE, "%lu\n",
+				       atomic_long_read(&sess->rx_data_octets));
 	}
 	spin_unlock_bh(&se_nacl->nacl_sess_lock);
 
@@ -886,8 +888,8 @@ static ssize_t iscsi_stat_sess_show_attr_conn_digest_errors(
 	if (se_sess) {
 		sess = se_sess->fabric_sess_ptr;
 		if (sess)
-			ret = snprintf(page, PAGE_SIZE, "%u\n",
-					sess->conn_digest_errors);
+			ret = snprintf(page, PAGE_SIZE, "%lu\n",
+				       atomic_long_read(&sess->conn_digest_errors));
 	}
 	spin_unlock_bh(&se_nacl->nacl_sess_lock);
 
@@ -910,8 +912,8 @@ static ssize_t iscsi_stat_sess_show_attr_conn_timeout_errors(
 	if (se_sess) {
 		sess = se_sess->fabric_sess_ptr;
 		if (sess)
-			ret = snprintf(page, PAGE_SIZE, "%u\n",
-					sess->conn_timeout_errors);
+			ret = snprintf(page, PAGE_SIZE, "%lu\n",
+				       atomic_long_read(&sess->conn_timeout_errors));
 	}
 	spin_unlock_bh(&se_nacl->nacl_sess_lock);
 
diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c
index f2de28e178fd..45b8fd13fa72 100644
--- a/drivers/target/iscsi/iscsi_target_util.c
+++ b/drivers/target/iscsi/iscsi_target_util.c
@@ -980,7 +980,7 @@ static void iscsit_handle_nopin_response_timeout(unsigned long data)
 		tiqn->sess_err_stats.last_sess_failure_type =
 				ISCSI_SESS_ERR_CXN_TIMEOUT;
 		tiqn->sess_err_stats.cxn_timeout_errors++;
-		conn->sess->conn_timeout_errors++;
+		atomic_long_inc(&conn->sess->conn_timeout_errors);
 		spin_unlock_bh(&tiqn->sess_err_stats.lock);
 	}
 	}
-- 
cgit 


From ea7e32bec1b9d9e5b159d80ceb563c702e28b02a Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Mon, 18 Nov 2013 10:55:10 -0800
Subject: iscsi-target: Do not reject non-immediate CmdSNs exceeding MaxCmdSN

This patch changes iscsit_sequence_cmd() logic to no longer reject
non-immediate CmdSNs that exceed MaxCmdSN with a protocol error,
but instead silently ignore them.

This is done to correctly follow RFC-3720 Section 3.2.2.1:

   For non-immediate commands, the CmdSN field can take any
   value from ExpCmdSN to MaxCmdSN inclusive.  The target MUST silently
   ignore any non-immediate command outside of this range or non-
   immediate duplicates within the range.

Reported-by: Santosh Kulkarni <santosh.kulkarni@calsoftinc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/iscsi/iscsi_target_core.h |  1 +
 drivers/target/iscsi/iscsi_target_util.c | 18 ++++++++++--------
 2 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h
index f2094d2f8eef..8dcb3c1aa801 100644
--- a/drivers/target/iscsi/iscsi_target_core.h
+++ b/drivers/target/iscsi/iscsi_target_core.h
@@ -193,6 +193,7 @@ enum recover_cmdsn_ret_table {
 	CMDSN_NORMAL_OPERATION		= 0,
 	CMDSN_LOWER_THAN_EXP		= 1,
 	CMDSN_HIGHER_THAN_EXP		= 2,
+	CMDSN_MAXCMDSN_OVERRUN		= 3,
 };
 
 /* Used for iscsi_handle_immediate_data() return values */
diff --git a/drivers/target/iscsi/iscsi_target_util.c b/drivers/target/iscsi/iscsi_target_util.c
index 45b8fd13fa72..9064926a0370 100644
--- a/drivers/target/iscsi/iscsi_target_util.c
+++ b/drivers/target/iscsi/iscsi_target_util.c
@@ -242,9 +242,9 @@ static inline int iscsit_check_received_cmdsn(struct iscsi_session *sess, u32 cm
 	 */
 	if (iscsi_sna_gt(cmdsn, sess->max_cmd_sn)) {
 		pr_err("Received CmdSN: 0x%08x is greater than"
-		       " MaxCmdSN: 0x%08x, protocol error.\n", cmdsn,
+		       " MaxCmdSN: 0x%08x, ignoring.\n", cmdsn,
 		       sess->max_cmd_sn);
-		ret = CMDSN_ERROR_CANNOT_RECOVER;
+		ret = CMDSN_MAXCMDSN_OVERRUN;
 
 	} else if (cmdsn == sess->exp_cmd_sn) {
 		sess->exp_cmd_sn++;
@@ -303,14 +303,16 @@ int iscsit_sequence_cmd(struct iscsi_conn *conn, struct iscsi_cmd *cmd,
 		ret = CMDSN_HIGHER_THAN_EXP;
 		break;
 	case CMDSN_LOWER_THAN_EXP:
+	case CMDSN_MAXCMDSN_OVERRUN:
+	default:
 		cmd->i_state = ISTATE_REMOVE;
 		iscsit_add_cmd_to_immediate_queue(cmd, conn, cmd->i_state);
-		ret = cmdsn_ret;
-		break;
-	default:
-		reason = ISCSI_REASON_PROTOCOL_ERROR;
-		reject = true;
-		ret = cmdsn_ret;
+		/*
+		 * Existing callers for iscsit_sequence_cmd() will silently
+		 * ignore commands with CMDSN_LOWER_THAN_EXP, so force this
+		 * return for CMDSN_MAXCMDSN_OVERRUN as well..
+		 */
+		ret = CMDSN_LOWER_THAN_EXP;
 		break;
 	}
 	mutex_unlock(&conn->sess->cmdsn_mutex);
-- 
cgit 


From fcd40d69afea8700eda8cbf381f6d160cf757ebf Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Tue, 19 Nov 2013 10:08:13 -0800
Subject: percpu-refcount: Add percpu-refcount.o to obj-y

Drop percpu_ida.o from lib-y since it is also listed in obj-y
and it doesn't need to be listed in both places.

Move percpu-refcount.o from lib-y to obj-y to fix build errors
in target_core_mod:

ERROR: "percpu_ref_cancel_init" [drivers/target/target_core_mod.ko] undefined!
ERROR: "percpu_ref_kill_and_confirm" [drivers/target/target_core_mod.ko] undefined!
ERROR: "percpu_ref_init" [drivers/target/target_core_mod.ko] undefined!

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 lib/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/Makefile b/lib/Makefile
index f3bb2cb98adf..8ed321179849 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -13,7 +13,7 @@ lib-y := ctype.o string.o vsprintf.o cmdline.o \
 	 sha1.o md5.o irq_regs.o reciprocal_div.o argv_split.o \
 	 proportions.o flex_proportions.o prio_heap.o ratelimit.o show_mem.o \
 	 is_single_threaded.o plist.o decompress.o kobject_uevent.o \
-	 earlycpio.o percpu-refcount.o percpu_ida.o
+	 earlycpio.o
 
 obj-$(CONFIG_ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS) += usercopy.o
 lib-$(CONFIG_MMU) += ioremap.o
@@ -26,7 +26,7 @@ obj-y += bcd.o div64.o sort.o parser.o halfmd4.o debug_locks.o random32.o \
 	 bust_spinlocks.o hexdump.o kasprintf.o bitmap.o scatterlist.o \
 	 gcd.o lcm.o list_sort.o uuid.o flex_array.o iovec.o clz_ctz.o \
 	 bsearch.o find_last_bit.o find_next_bit.o llist.o memweight.o kfifo.o \
-	 percpu_ida.o
+	 percpu-refcount.o percpu_ida.o
 obj-y += string_helpers.o
 obj-$(CONFIG_TEST_STRING_HELPERS) += test-string_helpers.o
 obj-y += kstrtox.o
-- 
cgit 


From ff1c038addc4f205d5f1ede449426c7d316c0eed Mon Sep 17 00:00:00 2001
From: Steve French <smfrench@gmail.com>
Date: Tue, 19 Nov 2013 23:44:46 -0600
Subject: Check SMB3 dialects against downgrade attacks

When we are running SMB3 or SMB3.02 connections which are signed
we need to validate the protocol negotiation information,
to ensure that the negotiate protocol response was not tampered with.

Add the missing FSCTL which is sent at mount time (immediately after
the SMB3 Tree Connect) to validate that the capabilities match
what we think the server sent.

"Secure dialect negotiation is introduced in SMB3 to protect against
man-in-the-middle attempt to downgrade dialect negotiation.
The idea is to prevent an eavesdropper from downgrading the initially
negotiated dialect and capabilities between the client and the server."

For more explanation see 2.2.31.4 of MS-SMB2 or
http://blogs.msdn.com/b/openspecification/archive/2012/06/28/smb3-secure-dialect-negotiation.aspx

Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <smfrench@gmail.com>
---
 fs/cifs/cifsglob.h  |  1 +
 fs/cifs/smb2ops.c   |  1 +
 fs/cifs/smb2pdu.c   | 77 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 fs/cifs/smb2pdu.h   | 12 ++++++---
 fs/cifs/smb2proto.h |  1 +
 fs/cifs/smbfsctl.h  |  2 +-
 6 files changed, 90 insertions(+), 4 deletions(-)

diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index d9ea7ada1378..f918a998a087 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -384,6 +384,7 @@ struct smb_version_operations {
 	int (*clone_range)(const unsigned int, struct cifsFileInfo *src_file,
 			struct cifsFileInfo *target_file, u64 src_off, u64 len,
 			u64 dest_off);
+	int (*validate_negotiate)(const unsigned int, struct cifs_tcon *);
 };
 
 struct smb_version_values {
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index a3968eeb6fac..757da3e54d3d 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -1319,6 +1319,7 @@ struct smb_version_operations smb30_operations = {
 	.create_lease_buf = smb3_create_lease_buf,
 	.parse_lease_buf = smb3_parse_lease_buf,
 	.clone_range = smb2_clone_range,
+	.validate_negotiate = smb3_validate_negotiate,
 };
 
 struct smb_version_values smb20_values = {
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 1e136eee3ea6..2013234b73ad 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -454,6 +454,81 @@ neg_exit:
 	return rc;
 }
 
+int smb3_validate_negotiate(const unsigned int xid, struct cifs_tcon *tcon)
+{
+	int rc = 0;
+	struct validate_negotiate_info_req vneg_inbuf;
+	struct validate_negotiate_info_rsp *pneg_rsp;
+	u32 rsplen;
+
+	cifs_dbg(FYI, "validate negotiate\n");
+
+	/*
+	 * validation ioctl must be signed, so no point sending this if we
+	 * can not sign it.  We could eventually change this to selectively
+	 * sign just this, the first and only signed request on a connection.
+	 * This is good enough for now since a user who wants better security
+	 * would also enable signing on the mount. Having validation of
+	 * negotiate info for signed connections helps reduce attack vectors
+	 */
+	if (tcon->ses->server->sign == false)
+		return 0; /* validation requires signing */
+
+	vneg_inbuf.Capabilities =
+			cpu_to_le32(tcon->ses->server->vals->req_capabilities);
+	memcpy(vneg_inbuf.Guid, cifs_client_guid, SMB2_CLIENT_GUID_SIZE);
+
+	if (tcon->ses->sign)
+		vneg_inbuf.SecurityMode =
+			cpu_to_le16(SMB2_NEGOTIATE_SIGNING_REQUIRED);
+	else if (global_secflags & CIFSSEC_MAY_SIGN)
+		vneg_inbuf.SecurityMode =
+			cpu_to_le16(SMB2_NEGOTIATE_SIGNING_ENABLED);
+	else
+		vneg_inbuf.SecurityMode = 0;
+
+	vneg_inbuf.DialectCount = cpu_to_le16(1);
+	vneg_inbuf.Dialects[0] =
+		cpu_to_le16(tcon->ses->server->vals->protocol_id);
+
+	rc = SMB2_ioctl(xid, tcon, NO_FILE_ID, NO_FILE_ID,
+		FSCTL_VALIDATE_NEGOTIATE_INFO, true /* is_fsctl */,
+		(char *)&vneg_inbuf, sizeof(struct validate_negotiate_info_req),
+		(char **)&pneg_rsp, &rsplen);
+
+	if (rc != 0) {
+		cifs_dbg(VFS, "validate protocol negotiate failed: %d\n", rc);
+		return -EIO;
+	}
+
+	if (rsplen != sizeof(struct validate_negotiate_info_rsp)) {
+		cifs_dbg(VFS, "invalid size of protocol negotiate response\n");
+		return -EIO;
+	}
+
+	/* check validate negotiate info response matches what we got earlier */
+	if (pneg_rsp->Dialect !=
+			cpu_to_le16(tcon->ses->server->vals->protocol_id))
+		goto vneg_out;
+
+	if (pneg_rsp->SecurityMode != cpu_to_le16(tcon->ses->server->sec_mode))
+		goto vneg_out;
+
+	/* do not validate server guid because not saved at negprot time yet */
+
+	if ((le32_to_cpu(pneg_rsp->Capabilities) | SMB2_NT_FIND |
+	      SMB2_LARGE_FILES) != tcon->ses->server->capabilities)
+		goto vneg_out;
+
+	/* validate negotiate successful */
+	cifs_dbg(FYI, "validate negotiate info successful\n");
+	return 0;
+
+vneg_out:
+	cifs_dbg(VFS, "protocol revalidation - security settings mismatch\n");
+	return -EIO;
+}
+
 int
 SMB2_sess_setup(const unsigned int xid, struct cifs_ses *ses,
 		const struct nls_table *nls_cp)
@@ -829,6 +904,8 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
 	    ((tcon->share_flags & SHI1005_FLAGS_DFS) == 0))
 		cifs_dbg(VFS, "DFS capability contradicts DFS flag\n");
 	init_copy_chunk_defaults(tcon);
+	if (tcon->ses->server->ops->validate_negotiate)
+		rc = tcon->ses->server->ops->validate_negotiate(xid, tcon);
 tcon_exit:
 	free_rsp_buf(resp_buftype, rsp);
 	kfree(unc_path);
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index f88320bbb477..2022c542ea3a 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -577,13 +577,19 @@ struct copychunk_ioctl_rsp {
 	__le32 TotalBytesWritten;
 } __packed;
 
-/* Response and Request are the same format */
-struct validate_negotiate_info {
+struct validate_negotiate_info_req {
 	__le32 Capabilities;
 	__u8   Guid[SMB2_CLIENT_GUID_SIZE];
 	__le16 SecurityMode;
 	__le16 DialectCount;
-	__le16 Dialect[1];
+	__le16 Dialects[1]; /* dialect (someday maybe list) client asked for */
+} __packed;
+
+struct validate_negotiate_info_rsp {
+	__le32 Capabilities;
+	__u8   Guid[SMB2_CLIENT_GUID_SIZE];
+	__le16 SecurityMode;
+	__le16 Dialect; /* Dialect in use for the connection */
 } __packed;
 
 #define RSS_CAPABLE	0x00000001
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index b4eea105b08c..93adc64666f3 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -162,5 +162,6 @@ extern int smb2_lockv(const unsigned int xid, struct cifs_tcon *tcon,
 		      struct smb2_lock_element *buf);
 extern int SMB2_lease_break(const unsigned int xid, struct cifs_tcon *tcon,
 			    __u8 *lease_key, const __le32 lease_state);
+extern int smb3_validate_negotiate(const unsigned int, struct cifs_tcon *);
 
 #endif			/* _SMB2PROTO_H */
diff --git a/fs/cifs/smbfsctl.h b/fs/cifs/smbfsctl.h
index a4b2391fe66e..0e538b5c9622 100644
--- a/fs/cifs/smbfsctl.h
+++ b/fs/cifs/smbfsctl.h
@@ -90,7 +90,7 @@
 #define FSCTL_LMR_REQUEST_RESILIENCY 0x001401D4 /* BB add struct */
 #define FSCTL_LMR_GET_LINK_TRACK_INF 0x001400E8 /* BB add struct */
 #define FSCTL_LMR_SET_LINK_TRACK_INF 0x001400EC /* BB add struct */
-#define FSCTL_VALIDATE_NEGOTIATE_INFO 0x00140204 /* BB add struct */
+#define FSCTL_VALIDATE_NEGOTIATE_INFO 0x00140204
 /* Perform server-side data movement */
 #define FSCTL_SRV_COPYCHUNK 0x001440F2
 #define FSCTL_SRV_COPYCHUNK_WRITE 0x001480F2
-- 
cgit 


From aa7e04b3808614980d474735cdb0bf35ac5cdf26 Mon Sep 17 00:00:00 2001
From: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Date: Tue, 19 Nov 2013 12:26:09 +0100
Subject: s390/signal: always restore saved runtime instrumentation psw bit

Commit "s390: fix handling of runtime instrumentation psw bit" (5ebf250dab)
changed the behavior of setting the runtime instrumentation psw bit.  This
commit restores the original logic:

1. When returning from the signal handler, the runtime instrumentation psw bit
   is restored to its saved state.
2. If the runtime instrumentation psw bit is enabled during the signal handler,
   it is always turned off when leaving the signal handler.  The saved state
   is restored as described in 1.  That also implies that turning on runtime
   instrumentation in the signal handler is only effective while running in the
   signal context.

Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
---
 arch/s390/kernel/compat_signal.c | 2 +-
 arch/s390/kernel/signal.c        | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index 6e2442978409..95e7ba0fbb7e 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -194,7 +194,7 @@ static int restore_sigregs32(struct pt_regs *regs,_sigregs32 __user *sregs)
 		return -EINVAL;
 
 	/* Use regs->psw.mask instead of PSW_USER_BITS to preserve PER bit. */
-	regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
+	regs->psw.mask = (regs->psw.mask & ~(PSW_MASK_USER | PSW_MASK_RI)) |
 		(__u64)(user_sregs.regs.psw.mask & PSW32_MASK_USER) << 32 |
 		(__u64)(user_sregs.regs.psw.mask & PSW32_MASK_RI) << 32 |
 		(__u64)(user_sregs.regs.psw.addr & PSW32_ADDR_AMODE);
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index fb535874a246..d8fd508ccd1e 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -94,7 +94,7 @@ static int restore_sigregs(struct pt_regs *regs, _sigregs __user *sregs)
 		return -EINVAL;
 
 	/* Use regs->psw.mask instead of PSW_USER_BITS to preserve PER bit. */
-	regs->psw.mask = (regs->psw.mask & ~PSW_MASK_USER) |
+	regs->psw.mask = (regs->psw.mask & ~(PSW_MASK_USER | PSW_MASK_RI)) |
 		(user_sregs.regs.psw.mask & (PSW_MASK_USER | PSW_MASK_RI));
 	/* Check for invalid user address space control. */
 	if ((regs->psw.mask & PSW_MASK_ASC) == PSW_ASC_HOME)
-- 
cgit 


From 26a35f373fbe6f21e8ad5ca4de1c01021e38fe2f Mon Sep 17 00:00:00 2001
From: Stefan Weinhuber <wein@de.ibm.com>
Date: Tue, 19 Nov 2013 14:15:57 +0100
Subject: s390/dasd: validate request size before building CCW/TCW request

An I/O request that does not read or write full blocks cannot be
translated into a correct CCW or TCW program and should be rejected
right away. In particular the code that creates TCW requests will not
notice this problem and create broken TCWs that will be rejected by
the hardware.

Signed-off-by: Stefan Weinhuber <wein@de.ibm.com>
Reference-ID: RQM1956
---
 drivers/s390/block/dasd_eckd.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index cee7e2708a1f..95e45782692f 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -3224,6 +3224,8 @@ static struct dasd_ccw_req *dasd_eckd_build_cp(struct dasd_device *startdev,
 
 	fcx_multitrack = private->features.feature[40] & 0x20;
 	data_size = blk_rq_bytes(req);
+	if (data_size % blksize)
+		return ERR_PTR(-EINVAL);
 	/* tpm write request add CBC data on each track boundary */
 	if (rq_data_dir(req) == WRITE)
 		data_size += (last_trk - first_trk) * 4;
-- 
cgit 


From dba6bb60043ed73abca8990f237db63a8cea6c50 Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Tue, 19 Nov 2013 14:25:17 +0100
Subject: s390/mm: optimize copy_page

Always use the mvcl instruction to copy a page instead of mvpg or a
couple of mvc instructions.
Copying a huge page is 25% faster this way. Also bypass caches when
copying pages since only parts of a page will be used afterwards.
Especially when copying a huge page this would kick everything out
of the L1 and L2 data caches on a zEC12 machine.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
---
 arch/s390/include/asm/page.h | 38 +++++++++++++-------------------------
 1 file changed, 13 insertions(+), 25 deletions(-)

diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h
index 316c8503a3b4..114258eeaacd 100644
--- a/arch/s390/include/asm/page.h
+++ b/arch/s390/include/asm/page.h
@@ -48,33 +48,21 @@ static inline void clear_page(void *page)
 		: "memory", "cc");
 }
 
+/*
+ * copy_page uses the mvcl instruction with 0xb0 padding byte in order to
+ * bypass caches when copying a page. Especially when copying huge pages
+ * this keeps L1 and L2 data caches alive.
+ */
 static inline void copy_page(void *to, void *from)
 {
-	if (MACHINE_HAS_MVPG) {
-		register unsigned long reg0 asm ("0") = 0;
-		asm volatile(
-			"	mvpg	%0,%1"
-			: : "a" (to), "a" (from), "d" (reg0)
-			: "memory", "cc");
-	} else
-		asm volatile(
-			"	mvc	0(256,%0),0(%1)\n"
-			"	mvc	256(256,%0),256(%1)\n"
-			"	mvc	512(256,%0),512(%1)\n"
-			"	mvc	768(256,%0),768(%1)\n"
-			"	mvc	1024(256,%0),1024(%1)\n"
-			"	mvc	1280(256,%0),1280(%1)\n"
-			"	mvc	1536(256,%0),1536(%1)\n"
-			"	mvc	1792(256,%0),1792(%1)\n"
-			"	mvc	2048(256,%0),2048(%1)\n"
-			"	mvc	2304(256,%0),2304(%1)\n"
-			"	mvc	2560(256,%0),2560(%1)\n"
-			"	mvc	2816(256,%0),2816(%1)\n"
-			"	mvc	3072(256,%0),3072(%1)\n"
-			"	mvc	3328(256,%0),3328(%1)\n"
-			"	mvc	3584(256,%0),3584(%1)\n"
-			"	mvc	3840(256,%0),3840(%1)\n"
-			: : "a" (to), "a" (from) : "memory");
+	register void *reg2 asm ("2") = to;
+	register unsigned long reg3 asm ("3") = 0x1000;
+	register void *reg4 asm ("4") = from;
+	register unsigned long reg5 asm ("5") = 0xb0001000;
+	asm volatile(
+		"	mvcl	2,4"
+		: "+d" (reg2), "+d" (reg3), "+d" (reg4), "+d" (reg5)
+		: : "memory", "cc");
 }
 
 #define clear_user_page(page, vaddr, pg)	clear_page(page)
-- 
cgit 


From 7a2a74f4b856993218aa7cdeeb6c3103101340db Mon Sep 17 00:00:00 2001
From: Andreas Bießmann <andreas@biessmann.de>
Date: Thu, 24 Oct 2013 12:31:03 +0200
Subject: avr32: setup crt for early panic()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Before the CRT was (fully) set up in kernel_entry (bss cleared before in
_start, but also not before jump to panic() in no_tag_table case).

This patch fixes this up to have a fully working CRT when branching to panic()
in no_tag_table.

Signed-off-by: Andreas Bießmann <andreas@biessmann.de>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: stable@vger.kernel.org
---
 arch/avr32/boot/u-boot/head.S | 30 +++++++++++++++++++++++++-----
 arch/avr32/kernel/head.S      | 20 --------------------
 2 files changed, 25 insertions(+), 25 deletions(-)

diff --git a/arch/avr32/boot/u-boot/head.S b/arch/avr32/boot/u-boot/head.S
index 4488fa27fe94..d36d865308df 100644
--- a/arch/avr32/boot/u-boot/head.S
+++ b/arch/avr32/boot/u-boot/head.S
@@ -8,6 +8,8 @@
  * published by the Free Software Foundation.
  */
 #include <asm/setup.h>
+#include <asm/thread_info.h>
+#include <asm/sysreg.h>
 
 	/*
 	 * The kernel is loaded where we want it to be and all caches
@@ -20,11 +22,6 @@
 	.section .init.text,"ax"
 	.global _start
 _start:
-	/* Check if the boot loader actually provided a tag table */
-	lddpc	r0, magic_number
-	cp.w	r12, r0
-	brne	no_tag_table
-
 	/* Initialize .bss */
 	lddpc	r2, bss_start_addr
 	lddpc   r3, end_addr
@@ -34,6 +31,25 @@ _start:
 	cp      r2, r3
 	brlo    1b
 
+	/* Initialize status register */
+	lddpc	r0, init_sr
+	mtsr	SYSREG_SR, r0
+
+	/* Set initial stack pointer */
+	lddpc	sp, stack_addr
+	sub	sp, -THREAD_SIZE
+
+#ifdef CONFIG_FRAME_POINTER
+	/* Mark last stack frame */
+	mov	lr, 0
+	mov	r7, 0
+#endif
+
+	/* Check if the boot loader actually provided a tag table */
+	lddpc	r0, magic_number
+	cp.w	r12, r0
+	brne	no_tag_table
+
 	/*
 	 * Save the tag table address for later use. This must be done
 	 * _after_ .bss has been initialized...
@@ -53,6 +69,10 @@ bss_start_addr:
 	.long   __bss_start
 end_addr:
 	.long   _end
+init_sr:
+	.long	0x007f0000	/* Supervisor mode, everything masked */
+stack_addr:
+	.long	init_thread_union
 
 no_tag_table:
 	sub	r12, pc, (. - 2f)
diff --git a/arch/avr32/kernel/head.S b/arch/avr32/kernel/head.S
index 6163bd0acb95..59eae6dfbed2 100644
--- a/arch/avr32/kernel/head.S
+++ b/arch/avr32/kernel/head.S
@@ -10,33 +10,13 @@
 #include <linux/linkage.h>
 
 #include <asm/page.h>
-#include <asm/thread_info.h>
-#include <asm/sysreg.h>
 
 	.section .init.text,"ax"
 	.global kernel_entry
 kernel_entry:
-	/* Initialize status register */
-	lddpc   r0, init_sr
-	mtsr	SYSREG_SR, r0
-
-	/* Set initial stack pointer */
-	lddpc   sp, stack_addr
-	sub	sp, -THREAD_SIZE
-
-#ifdef CONFIG_FRAME_POINTER
-	/* Mark last stack frame */
-	mov	lr, 0
-	mov	r7, 0
-#endif
-
 	/* Start the show */
 	lddpc   pc, kernel_start_addr
 
 	.align  2
-init_sr:
-	.long   0x007f0000	/* Supervisor mode, everything masked */
-stack_addr:
-	.long   init_thread_union
 kernel_start_addr:
 	.long   start_kernel
-- 
cgit 


From d617b338bbfdd77e9cbd8e7dc949cee3dd73d575 Mon Sep 17 00:00:00 2001
From: Andreas Bießmann <andreas@biessmann.de>
Date: Thu, 24 Oct 2013 12:31:04 +0200
Subject: avr32: fix out-of-range jump in large kernels
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This patch fixes following error (for big kernels):

---8<---
arch/avr32/boot/u-boot/head.o: In function `no_tag_table':
(.init.text+0x44): relocation truncated to fit: R_AVR32_22H_PCREL against symbol `panic' defined in .text.unlikely section in kernel/built-in.o
arch/avr32/kernel/built-in.o: In function `bad_return':
(.ex.text+0x236): relocation truncated to fit: R_AVR32_22H_PCREL against symbol `panic' defined in .text.unlikely section in kernel/built-in.o
--->8---

It comes up when the kernel increases and 'panic()' is too far away to fit in
the +/- 2MiB range. Which in turn issues from the 21-bit displacement in
'br{cond4}' mnemonic which is one of the two ways to do jumps (rjmp has just
10-bit displacement and therefore a way smaller range). This fact was stated
before in 8d29b7b9f81d6b83d869ff054e6c189d6da73f1f.
One solution to solve this is to add a local storage for the symbol address
and just load the $pc with that value.

Signed-off-by: Andreas Bießmann <andreas@biessmann.de>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: stable@vger.kernel.org
---
 arch/avr32/boot/u-boot/head.S    | 5 ++++-
 arch/avr32/kernel/entry-avr32b.S | 3 ++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/avr32/boot/u-boot/head.S b/arch/avr32/boot/u-boot/head.S
index d36d865308df..2ffc298f061b 100644
--- a/arch/avr32/boot/u-boot/head.S
+++ b/arch/avr32/boot/u-boot/head.S
@@ -73,8 +73,11 @@ init_sr:
 	.long	0x007f0000	/* Supervisor mode, everything masked */
 stack_addr:
 	.long	init_thread_union
+panic_addr:
+	.long	panic
 
 no_tag_table:
 	sub	r12, pc, (. - 2f)
-	bral	panic
+	/* branch to panic() which can be far away with that construct */
+	lddpc	pc, panic_addr
 2:	.asciz	"Boot loader didn't provide correct magic number\n"
diff --git a/arch/avr32/kernel/entry-avr32b.S b/arch/avr32/kernel/entry-avr32b.S
index 9899d3cc6f03..7301f4806bbe 100644
--- a/arch/avr32/kernel/entry-avr32b.S
+++ b/arch/avr32/kernel/entry-avr32b.S
@@ -401,9 +401,10 @@ handle_critical:
 	/* We should never get here... */
 bad_return:
 	sub	r12, pc, (. - 1f)
-	bral	panic
+	lddpc	pc, 2f
 	.align	2
 1:	.asciz	"Return from critical exception!"
+2:	.long	panic
 
 	.align	1
 do_bus_error_write:
-- 
cgit 


From dbc0d691a4dd7787efd94aa26fe7682a457e53d8 Mon Sep 17 00:00:00 2001
From: Eirik Aanonsen <eaa@wprmedical.com>
Date: Wed, 6 Nov 2013 22:00:33 +0100
Subject: avr32: add kprobe_ctlblk memory struct

This re-enables kprobes on AVR32 architecture.

Signed-off-by: Eirik Aanonsen <eaa@wprmedical.com>
Signed-off-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
---
 arch/avr32/include/asm/kprobes.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/avr32/include/asm/kprobes.h b/arch/avr32/include/asm/kprobes.h
index 996cb656474e..45f563ed73fd 100644
--- a/arch/avr32/include/asm/kprobes.h
+++ b/arch/avr32/include/asm/kprobes.h
@@ -16,6 +16,7 @@
 typedef u16	kprobe_opcode_t;
 #define BREAKPOINT_INSTRUCTION	0xd673	/* breakpoint */
 #define MAX_INSN_SIZE		2
+#define MAX_STACK_SIZE		64	/* 32 would probably be OK */
 
 #define kretprobe_blacklist_size 0
 
@@ -26,6 +27,19 @@ struct arch_specific_insn {
 	kprobe_opcode_t	insn[MAX_INSN_SIZE];
 };
 
+struct prev_kprobe {
+	struct kprobe *kp;
+	unsigned int status;
+};
+
+/* per-cpu kprobe control block */
+struct kprobe_ctlblk {
+	unsigned int kprobe_status;
+	struct prev_kprobe prev_kprobe;
+	struct pt_regs jprobe_saved_regs;
+	char jprobes_stack[MAX_STACK_SIZE];
+};
+
 extern int kprobe_fault_handler(struct pt_regs *regs, int trapnr);
 extern int kprobe_exceptions_notify(struct notifier_block *self,
 				    unsigned long val, void *data);
-- 
cgit 


From e7f2c8c1f0e5b062c23001dac229e570228940e8 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Tue, 12 Nov 2013 16:38:47 +0800
Subject: avr32: uapi: be sure of "_UAPI" prefix for all guard macros

For all uapi headers, need use "_UAPI" prefix for its guard macro
(which will be stripped by "scripts/headers_installer.sh").

Also remove redundant files (bitsperlong.h, errno.h, fcntl.h, ioctl.h,
ioctls.h, ipcbuf.h, kvm_para.h, mman.h, poll.h, resource.h, siginfo.h,
statfs.h, and unistd.h) which are already in Kbuild.

Also be sure that all "#endif" only have one empty line above, and each
file has guard macro.

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Hans-Christian Egtvedt <hegtvedt@cisco.com>
---
 arch/avr32/include/uapi/asm/Kbuild        | 24 ++++++++++++------------
 arch/avr32/include/uapi/asm/auxvec.h      |  6 +++---
 arch/avr32/include/uapi/asm/bitsperlong.h |  1 -
 arch/avr32/include/uapi/asm/byteorder.h   |  6 +++---
 arch/avr32/include/uapi/asm/cachectl.h    |  6 +++---
 arch/avr32/include/uapi/asm/errno.h       |  6 ------
 arch/avr32/include/uapi/asm/fcntl.h       |  6 ------
 arch/avr32/include/uapi/asm/ioctl.h       |  6 ------
 arch/avr32/include/uapi/asm/ioctls.h      |  6 ------
 arch/avr32/include/uapi/asm/ipcbuf.h      |  1 -
 arch/avr32/include/uapi/asm/kvm_para.h    |  1 -
 arch/avr32/include/uapi/asm/mman.h        |  1 -
 arch/avr32/include/uapi/asm/msgbuf.h      |  6 +++---
 arch/avr32/include/uapi/asm/poll.h        |  1 -
 arch/avr32/include/uapi/asm/posix_types.h |  6 +++---
 arch/avr32/include/uapi/asm/resource.h    |  6 ------
 arch/avr32/include/uapi/asm/sembuf.h      |  6 +++---
 arch/avr32/include/uapi/asm/setup.h       |  1 -
 arch/avr32/include/uapi/asm/shmbuf.h      |  6 +++---
 arch/avr32/include/uapi/asm/sigcontext.h  |  6 +++---
 arch/avr32/include/uapi/asm/siginfo.h     |  6 ------
 arch/avr32/include/uapi/asm/signal.h      |  1 -
 arch/avr32/include/uapi/asm/socket.h      |  6 +++---
 arch/avr32/include/uapi/asm/sockios.h     |  6 +++---
 arch/avr32/include/uapi/asm/stat.h        |  6 +++---
 arch/avr32/include/uapi/asm/statfs.h      |  6 ------
 arch/avr32/include/uapi/asm/swab.h        |  6 +++---
 arch/avr32/include/uapi/asm/termbits.h    |  6 +++---
 arch/avr32/include/uapi/asm/termios.h     |  1 -
 arch/avr32/include/uapi/asm/types.h       |  5 +++++
 arch/avr32/include/uapi/asm/unistd.h      |  1 -
 31 files changed, 56 insertions(+), 102 deletions(-)
 delete mode 100644 arch/avr32/include/uapi/asm/bitsperlong.h
 delete mode 100644 arch/avr32/include/uapi/asm/errno.h
 delete mode 100644 arch/avr32/include/uapi/asm/fcntl.h
 delete mode 100644 arch/avr32/include/uapi/asm/ioctl.h
 delete mode 100644 arch/avr32/include/uapi/asm/ioctls.h
 delete mode 100644 arch/avr32/include/uapi/asm/ipcbuf.h
 delete mode 100644 arch/avr32/include/uapi/asm/kvm_para.h
 delete mode 100644 arch/avr32/include/uapi/asm/mman.h
 delete mode 100644 arch/avr32/include/uapi/asm/poll.h
 delete mode 100644 arch/avr32/include/uapi/asm/resource.h
 delete mode 100644 arch/avr32/include/uapi/asm/siginfo.h
 delete mode 100644 arch/avr32/include/uapi/asm/statfs.h

diff --git a/arch/avr32/include/uapi/asm/Kbuild b/arch/avr32/include/uapi/asm/Kbuild
index 3b85eaddf525..08d8a3d76ea8 100644
--- a/arch/avr32/include/uapi/asm/Kbuild
+++ b/arch/avr32/include/uapi/asm/Kbuild
@@ -2,35 +2,35 @@
 include include/uapi/asm-generic/Kbuild.asm
 
 header-y += auxvec.h
-header-y += bitsperlong.h
 header-y += byteorder.h
 header-y += cachectl.h
-header-y += errno.h
-header-y += fcntl.h
-header-y += ioctl.h
-header-y += ioctls.h
-header-y += ipcbuf.h
-header-y += kvm_para.h
-header-y += mman.h
 header-y += msgbuf.h
 header-y += param.h
-header-y += poll.h
 header-y += posix_types.h
 header-y += ptrace.h
-header-y += resource.h
 header-y += sembuf.h
 header-y += setup.h
 header-y += shmbuf.h
 header-y += sigcontext.h
-header-y += siginfo.h
 header-y += signal.h
 header-y += socket.h
 header-y += sockios.h
 header-y += stat.h
-header-y += statfs.h
 header-y += swab.h
 header-y += termbits.h
 header-y += termios.h
 header-y += types.h
 header-y += unistd.h
+generic-y += bitsperlong.h
+generic-y += errno.h
+generic-y += fcntl.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += kvm_para.h
+generic-y += mman.h
 generic-y += param.h
+generic-y += poll.h
+generic-y += resource.h
+generic-y += siginfo.h
+generic-y += statfs.h
diff --git a/arch/avr32/include/uapi/asm/auxvec.h b/arch/avr32/include/uapi/asm/auxvec.h
index d5dd435bf8f4..4f02da3ffefa 100644
--- a/arch/avr32/include/uapi/asm/auxvec.h
+++ b/arch/avr32/include/uapi/asm/auxvec.h
@@ -1,4 +1,4 @@
-#ifndef __ASM_AVR32_AUXVEC_H
-#define __ASM_AVR32_AUXVEC_H
+#ifndef _UAPI__ASM_AVR32_AUXVEC_H
+#define _UAPI__ASM_AVR32_AUXVEC_H
 
-#endif /* __ASM_AVR32_AUXVEC_H */
+#endif /* _UAPI__ASM_AVR32_AUXVEC_H */
diff --git a/arch/avr32/include/uapi/asm/bitsperlong.h b/arch/avr32/include/uapi/asm/bitsperlong.h
deleted file mode 100644
index 6dc0bb0c13b2..000000000000
--- a/arch/avr32/include/uapi/asm/bitsperlong.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/bitsperlong.h>
diff --git a/arch/avr32/include/uapi/asm/byteorder.h b/arch/avr32/include/uapi/asm/byteorder.h
index 50abc21619a8..71242f0d39c6 100644
--- a/arch/avr32/include/uapi/asm/byteorder.h
+++ b/arch/avr32/include/uapi/asm/byteorder.h
@@ -1,9 +1,9 @@
 /*
  * AVR32 endian-conversion functions.
  */
-#ifndef __ASM_AVR32_BYTEORDER_H
-#define __ASM_AVR32_BYTEORDER_H
+#ifndef _UAPI__ASM_AVR32_BYTEORDER_H
+#define _UAPI__ASM_AVR32_BYTEORDER_H
 
 #include <linux/byteorder/big_endian.h>
 
-#endif /* __ASM_AVR32_BYTEORDER_H */
+#endif /* _UAPI__ASM_AVR32_BYTEORDER_H */
diff --git a/arch/avr32/include/uapi/asm/cachectl.h b/arch/avr32/include/uapi/asm/cachectl.h
index 4faf1ce60061..573a9584dd57 100644
--- a/arch/avr32/include/uapi/asm/cachectl.h
+++ b/arch/avr32/include/uapi/asm/cachectl.h
@@ -1,5 +1,5 @@
-#ifndef __ASM_AVR32_CACHECTL_H
-#define __ASM_AVR32_CACHECTL_H
+#ifndef _UAPI__ASM_AVR32_CACHECTL_H
+#define _UAPI__ASM_AVR32_CACHECTL_H
 
 /*
  * Operations that can be performed through the cacheflush system call
@@ -8,4 +8,4 @@
 /* Clean the data cache, then invalidate the icache */
 #define CACHE_IFLUSH	0
 
-#endif /* __ASM_AVR32_CACHECTL_H */
+#endif /* _UAPI__ASM_AVR32_CACHECTL_H */
diff --git a/arch/avr32/include/uapi/asm/errno.h b/arch/avr32/include/uapi/asm/errno.h
deleted file mode 100644
index 558a7249f06d..000000000000
--- a/arch/avr32/include/uapi/asm/errno.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __ASM_AVR32_ERRNO_H
-#define __ASM_AVR32_ERRNO_H
-
-#include <asm-generic/errno.h>
-
-#endif /* __ASM_AVR32_ERRNO_H */
diff --git a/arch/avr32/include/uapi/asm/fcntl.h b/arch/avr32/include/uapi/asm/fcntl.h
deleted file mode 100644
index 14c0c4402b11..000000000000
--- a/arch/avr32/include/uapi/asm/fcntl.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __ASM_AVR32_FCNTL_H
-#define __ASM_AVR32_FCNTL_H
-
-#include <asm-generic/fcntl.h>
-
-#endif /* __ASM_AVR32_FCNTL_H */
diff --git a/arch/avr32/include/uapi/asm/ioctl.h b/arch/avr32/include/uapi/asm/ioctl.h
deleted file mode 100644
index c8472c1398ef..000000000000
--- a/arch/avr32/include/uapi/asm/ioctl.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __ASM_AVR32_IOCTL_H
-#define __ASM_AVR32_IOCTL_H
-
-#include <asm-generic/ioctl.h>
-
-#endif /* __ASM_AVR32_IOCTL_H */
diff --git a/arch/avr32/include/uapi/asm/ioctls.h b/arch/avr32/include/uapi/asm/ioctls.h
deleted file mode 100644
index 909cf66feaf5..000000000000
--- a/arch/avr32/include/uapi/asm/ioctls.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __ASM_AVR32_IOCTLS_H
-#define __ASM_AVR32_IOCTLS_H
-
-#include <asm-generic/ioctls.h>
-
-#endif /* __ASM_AVR32_IOCTLS_H */
diff --git a/arch/avr32/include/uapi/asm/ipcbuf.h b/arch/avr32/include/uapi/asm/ipcbuf.h
deleted file mode 100644
index 84c7e51cb6d0..000000000000
--- a/arch/avr32/include/uapi/asm/ipcbuf.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/ipcbuf.h>
diff --git a/arch/avr32/include/uapi/asm/kvm_para.h b/arch/avr32/include/uapi/asm/kvm_para.h
deleted file mode 100644
index 14fab8f0b957..000000000000
--- a/arch/avr32/include/uapi/asm/kvm_para.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/kvm_para.h>
diff --git a/arch/avr32/include/uapi/asm/mman.h b/arch/avr32/include/uapi/asm/mman.h
deleted file mode 100644
index 8eebf89f5ab1..000000000000
--- a/arch/avr32/include/uapi/asm/mman.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/mman.h>
diff --git a/arch/avr32/include/uapi/asm/msgbuf.h b/arch/avr32/include/uapi/asm/msgbuf.h
index ac18bc4da7f7..9eae6effad14 100644
--- a/arch/avr32/include/uapi/asm/msgbuf.h
+++ b/arch/avr32/include/uapi/asm/msgbuf.h
@@ -1,5 +1,5 @@
-#ifndef __ASM_AVR32_MSGBUF_H
-#define __ASM_AVR32_MSGBUF_H
+#ifndef _UAPI__ASM_AVR32_MSGBUF_H
+#define _UAPI__ASM_AVR32_MSGBUF_H
 
 /*
  * The msqid64_ds structure for i386 architecture.
@@ -28,4 +28,4 @@ struct msqid64_ds {
 	unsigned long  __unused5;
 };
 
-#endif /* __ASM_AVR32_MSGBUF_H */
+#endif /* _UAPI__ASM_AVR32_MSGBUF_H */
diff --git a/arch/avr32/include/uapi/asm/poll.h b/arch/avr32/include/uapi/asm/poll.h
deleted file mode 100644
index c98509d3149e..000000000000
--- a/arch/avr32/include/uapi/asm/poll.h
+++ /dev/null
@@ -1 +0,0 @@
-#include <asm-generic/poll.h>
diff --git a/arch/avr32/include/uapi/asm/posix_types.h b/arch/avr32/include/uapi/asm/posix_types.h
index 9ba9e749b3f3..5b813a8abf09 100644
--- a/arch/avr32/include/uapi/asm/posix_types.h
+++ b/arch/avr32/include/uapi/asm/posix_types.h
@@ -5,8 +5,8 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
-#ifndef __ASM_AVR32_POSIX_TYPES_H
-#define __ASM_AVR32_POSIX_TYPES_H
+#ifndef _UAPI__ASM_AVR32_POSIX_TYPES_H
+#define _UAPI__ASM_AVR32_POSIX_TYPES_H
 
 /*
  * This file is generally used by user-level software, so you need to
@@ -34,4 +34,4 @@ typedef unsigned short  __kernel_old_dev_t;
 
 #include <asm-generic/posix_types.h>
 
-#endif /* __ASM_AVR32_POSIX_TYPES_H */
+#endif /* _UAPI__ASM_AVR32_POSIX_TYPES_H */
diff --git a/arch/avr32/include/uapi/asm/resource.h b/arch/avr32/include/uapi/asm/resource.h
deleted file mode 100644
index c6dd101472b1..000000000000
--- a/arch/avr32/include/uapi/asm/resource.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __ASM_AVR32_RESOURCE_H
-#define __ASM_AVR32_RESOURCE_H
-
-#include <asm-generic/resource.h>
-
-#endif /* __ASM_AVR32_RESOURCE_H */
diff --git a/arch/avr32/include/uapi/asm/sembuf.h b/arch/avr32/include/uapi/asm/sembuf.h
index e472216e0c97..6c6f7cf1e75a 100644
--- a/arch/avr32/include/uapi/asm/sembuf.h
+++ b/arch/avr32/include/uapi/asm/sembuf.h
@@ -1,5 +1,5 @@
-#ifndef __ASM_AVR32_SEMBUF_H
-#define __ASM_AVR32_SEMBUF_H
+#ifndef _UAPI__ASM_AVR32_SEMBUF_H
+#define _UAPI__ASM_AVR32_SEMBUF_H
 
 /*
 * The semid64_ds structure for AVR32 architecture.
@@ -22,4 +22,4 @@ struct semid64_ds {
         unsigned long   __unused4;
 };
 
-#endif /* __ASM_AVR32_SEMBUF_H */
+#endif /* _UAPI__ASM_AVR32_SEMBUF_H */
diff --git a/arch/avr32/include/uapi/asm/setup.h b/arch/avr32/include/uapi/asm/setup.h
index e58aa9356faf..a654df7dba46 100644
--- a/arch/avr32/include/uapi/asm/setup.h
+++ b/arch/avr32/include/uapi/asm/setup.h
@@ -13,5 +13,4 @@
 
 #define COMMAND_LINE_SIZE 256
 
-
 #endif /* _UAPI__ASM_AVR32_SETUP_H__ */
diff --git a/arch/avr32/include/uapi/asm/shmbuf.h b/arch/avr32/include/uapi/asm/shmbuf.h
index c62fba41739a..b94cf8b60b73 100644
--- a/arch/avr32/include/uapi/asm/shmbuf.h
+++ b/arch/avr32/include/uapi/asm/shmbuf.h
@@ -1,5 +1,5 @@
-#ifndef __ASM_AVR32_SHMBUF_H
-#define __ASM_AVR32_SHMBUF_H
+#ifndef _UAPI__ASM_AVR32_SHMBUF_H
+#define _UAPI__ASM_AVR32_SHMBUF_H
 
 /*
  * The shmid64_ds structure for i386 architecture.
@@ -39,4 +39,4 @@ struct shminfo64 {
 	unsigned long	__unused4;
 };
 
-#endif /* __ASM_AVR32_SHMBUF_H */
+#endif /* _UAPI__ASM_AVR32_SHMBUF_H */
diff --git a/arch/avr32/include/uapi/asm/sigcontext.h b/arch/avr32/include/uapi/asm/sigcontext.h
index e04062b5f39f..27e56bf6377f 100644
--- a/arch/avr32/include/uapi/asm/sigcontext.h
+++ b/arch/avr32/include/uapi/asm/sigcontext.h
@@ -5,8 +5,8 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
-#ifndef __ASM_AVR32_SIGCONTEXT_H
-#define __ASM_AVR32_SIGCONTEXT_H
+#ifndef _UAPI__ASM_AVR32_SIGCONTEXT_H
+#define _UAPI__ASM_AVR32_SIGCONTEXT_H
 
 struct sigcontext {
 	unsigned long	oldmask;
@@ -31,4 +31,4 @@ struct sigcontext {
 	unsigned long	r0;
 };
 
-#endif /* __ASM_AVR32_SIGCONTEXT_H */
+#endif /* _UAPI__ASM_AVR32_SIGCONTEXT_H */
diff --git a/arch/avr32/include/uapi/asm/siginfo.h b/arch/avr32/include/uapi/asm/siginfo.h
deleted file mode 100644
index 5ee93f40a8a8..000000000000
--- a/arch/avr32/include/uapi/asm/siginfo.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef _AVR32_SIGINFO_H
-#define _AVR32_SIGINFO_H
-
-#include <asm-generic/siginfo.h>
-
-#endif
diff --git a/arch/avr32/include/uapi/asm/signal.h b/arch/avr32/include/uapi/asm/signal.h
index 1b77a93eff50..ffe8c770cafd 100644
--- a/arch/avr32/include/uapi/asm/signal.h
+++ b/arch/avr32/include/uapi/asm/signal.h
@@ -118,5 +118,4 @@ typedef struct sigaltstack {
 	size_t ss_size;
 } stack_t;
 
-
 #endif /* _UAPI__ASM_AVR32_SIGNAL_H */
diff --git a/arch/avr32/include/uapi/asm/socket.h b/arch/avr32/include/uapi/asm/socket.h
index 439936421434..cbf902e4cd9e 100644
--- a/arch/avr32/include/uapi/asm/socket.h
+++ b/arch/avr32/include/uapi/asm/socket.h
@@ -1,5 +1,5 @@
-#ifndef __ASM_AVR32_SOCKET_H
-#define __ASM_AVR32_SOCKET_H
+#ifndef _UAPI__ASM_AVR32_SOCKET_H
+#define _UAPI__ASM_AVR32_SOCKET_H
 
 #include <asm/sockios.h>
 
@@ -78,4 +78,4 @@
 
 #define SO_MAX_PACING_RATE	47
 
-#endif /* __ASM_AVR32_SOCKET_H */
+#endif /* _UAPI__ASM_AVR32_SOCKET_H */
diff --git a/arch/avr32/include/uapi/asm/sockios.h b/arch/avr32/include/uapi/asm/sockios.h
index 0802d742f97d..d04785453532 100644
--- a/arch/avr32/include/uapi/asm/sockios.h
+++ b/arch/avr32/include/uapi/asm/sockios.h
@@ -1,5 +1,5 @@
-#ifndef __ASM_AVR32_SOCKIOS_H
-#define __ASM_AVR32_SOCKIOS_H
+#ifndef _UAPI__ASM_AVR32_SOCKIOS_H
+#define _UAPI__ASM_AVR32_SOCKIOS_H
 
 /* Socket-level I/O control calls. */
 #define FIOSETOWN 	0x8901
@@ -10,4 +10,4 @@
 #define SIOCGSTAMP	0x8906		/* Get stamp (timeval) */
 #define SIOCGSTAMPNS	0x8907		/* Get stamp (timespec) */
 
-#endif /* __ASM_AVR32_SOCKIOS_H */
+#endif /* _UAPI__ASM_AVR32_SOCKIOS_H */
diff --git a/arch/avr32/include/uapi/asm/stat.h b/arch/avr32/include/uapi/asm/stat.h
index e72881e10230..c06acef7fce7 100644
--- a/arch/avr32/include/uapi/asm/stat.h
+++ b/arch/avr32/include/uapi/asm/stat.h
@@ -5,8 +5,8 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
-#ifndef __ASM_AVR32_STAT_H
-#define __ASM_AVR32_STAT_H
+#ifndef _UAPI__ASM_AVR32_STAT_H
+#define _UAPI__ASM_AVR32_STAT_H
 
 struct __old_kernel_stat {
         unsigned short st_dev;
@@ -76,4 +76,4 @@ struct stat64 {
 	unsigned long	__unused2;
 };
 
-#endif /* __ASM_AVR32_STAT_H */
+#endif /* _UAPI__ASM_AVR32_STAT_H */
diff --git a/arch/avr32/include/uapi/asm/statfs.h b/arch/avr32/include/uapi/asm/statfs.h
deleted file mode 100644
index 2961bd18c50e..000000000000
--- a/arch/avr32/include/uapi/asm/statfs.h
+++ /dev/null
@@ -1,6 +0,0 @@
-#ifndef __ASM_AVR32_STATFS_H
-#define __ASM_AVR32_STATFS_H
-
-#include <asm-generic/statfs.h>
-
-#endif /* __ASM_AVR32_STATFS_H */
diff --git a/arch/avr32/include/uapi/asm/swab.h b/arch/avr32/include/uapi/asm/swab.h
index 14cc737bbca6..1a03549e7dc5 100644
--- a/arch/avr32/include/uapi/asm/swab.h
+++ b/arch/avr32/include/uapi/asm/swab.h
@@ -1,8 +1,8 @@
 /*
  * AVR32 byteswapping functions.
  */
-#ifndef __ASM_AVR32_SWAB_H
-#define __ASM_AVR32_SWAB_H
+#ifndef _UAPI__ASM_AVR32_SWAB_H
+#define _UAPI__ASM_AVR32_SWAB_H
 
 #include <linux/types.h>
 #include <linux/compiler.h>
@@ -32,4 +32,4 @@ static inline __attribute_const__ __u32 __arch_swab32(__u32 val)
 #define __arch_swab32 __arch_swab32
 #endif
 
-#endif /* __ASM_AVR32_SWAB_H */
+#endif /* _UAPI__ASM_AVR32_SWAB_H */
diff --git a/arch/avr32/include/uapi/asm/termbits.h b/arch/avr32/include/uapi/asm/termbits.h
index 366adc5ebb10..32789ccb38f8 100644
--- a/arch/avr32/include/uapi/asm/termbits.h
+++ b/arch/avr32/include/uapi/asm/termbits.h
@@ -1,5 +1,5 @@
-#ifndef __ASM_AVR32_TERMBITS_H
-#define __ASM_AVR32_TERMBITS_H
+#ifndef _UAPI__ASM_AVR32_TERMBITS_H
+#define _UAPI__ASM_AVR32_TERMBITS_H
 
 #include <linux/posix_types.h>
 
@@ -193,4 +193,4 @@ struct ktermios {
 #define	TCSADRAIN	1
 #define	TCSAFLUSH	2
 
-#endif /* __ASM_AVR32_TERMBITS_H */
+#endif /* _UAPI__ASM_AVR32_TERMBITS_H */
diff --git a/arch/avr32/include/uapi/asm/termios.h b/arch/avr32/include/uapi/asm/termios.h
index b8ef8ea63352..c8a0081556c4 100644
--- a/arch/avr32/include/uapi/asm/termios.h
+++ b/arch/avr32/include/uapi/asm/termios.h
@@ -46,5 +46,4 @@ struct termio {
 
 /* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
 
-
 #endif /* _UAPI__ASM_AVR32_TERMIOS_H */
diff --git a/arch/avr32/include/uapi/asm/types.h b/arch/avr32/include/uapi/asm/types.h
index bb34ad349dfc..7c986c4e99b5 100644
--- a/arch/avr32/include/uapi/asm/types.h
+++ b/arch/avr32/include/uapi/asm/types.h
@@ -5,4 +5,9 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
+#ifndef _UAPI__ASM_AVR32_TYPES_H
+#define _UAPI__ASM_AVR32_TYPES_H
+
 #include <asm-generic/int-ll64.h>
+
+#endif /* _UAPI__ASM_AVR32_TYPES_H */
diff --git a/arch/avr32/include/uapi/asm/unistd.h b/arch/avr32/include/uapi/asm/unistd.h
index 3eaa68753adb..8822bf46ddc6 100644
--- a/arch/avr32/include/uapi/asm/unistd.h
+++ b/arch/avr32/include/uapi/asm/unistd.h
@@ -301,5 +301,4 @@
 #define __NR_eventfd		281
 #define __NR_setns		283
 
-
 #endif /* _UAPI__ASM_AVR32_UNISTD_H */
-- 
cgit 


From 521ee0cfb876dd31ce4e0878e1163fe0817a7acc Mon Sep 17 00:00:00 2001
From: Sasha Levin <sasha.levin@oracle.com>
Date: Tue, 19 Nov 2013 15:22:47 -0500
Subject: kvm: mmu: delay mmu audit activation

We should not be using jump labels before they were initialized. Push back
the callback to until after jump label initialization.

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 arch/x86/kvm/mmu_audit.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/mmu_audit.c b/arch/x86/kvm/mmu_audit.c
index daff69e21150..1185fe7a7f47 100644
--- a/arch/x86/kvm/mmu_audit.c
+++ b/arch/x86/kvm/mmu_audit.c
@@ -296,4 +296,4 @@ static struct kernel_param_ops audit_param_ops = {
 	.get = param_get_bool,
 };
 
-module_param_cb(mmu_audit, &audit_param_ops, &mmu_audit, 0644);
+arch_param_cb(mmu_audit, &audit_param_ops, &mmu_audit, 0644);
-- 
cgit 


From 0bc254257bfd9b25f64a68b719ee70a303b6d051 Mon Sep 17 00:00:00 2001
From: Thomas Hellstrom <thellstrom@vmware.com>
Date: Sun, 17 Nov 2013 23:30:38 -0800
Subject: drm/ttm: Don't move non-existing data

If ttm_bo_move_memcpy was instructed to move a non-populated ttm to
io memory, it would first populate the ttm, then move the data and then
destroy the ttm. That's stupid. However, some drivers might have relied on
this to clear io memory from old stuff. So instead of a NOP, which would
be the most efficient, just clear the destination.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
---
 drivers/gpu/drm/ttm/ttm_bo_util.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index 4834c463c38b..15b86a94949d 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -350,10 +350,13 @@ int ttm_bo_move_memcpy(struct ttm_buffer_object *bo,
 		goto out2;
 
 	/*
-	 * Move nonexistent data. NOP.
+	 * Don't move nonexistent data. Clear destination instead.
 	 */
-	if (old_iomap == NULL && ttm == NULL)
+	if (old_iomap == NULL &&
+	    (ttm == NULL || ttm->state == tt_unpopulated)) {
+		memset_io(new_iomap, 0, new_mem->num_pages*PAGE_SIZE);
 		goto out2;
+	}
 
 	/*
 	 * TTM might be null for moves within the same region.
-- 
cgit 


From c58f009e01c918717379c206a63baa66f56a77f9 Mon Sep 17 00:00:00 2001
From: Thomas Hellstrom <thellstrom@vmware.com>
Date: Thu, 14 Nov 2013 10:49:05 -0800
Subject: drm/ttm: Remove set_need_resched from the ttm fault handler

Addresses
"[BUG] completely bonkers use of set_need_resched + VM_FAULT_NOPAGE".

In the first occurence it was used to try to be nice while releasing the
mmap_sem and retrying the fault to work around a locking inversion.
The second occurence was never used.

There has been some discussion whether we should change the locking order to
mmap_sem -> bo_reserve. This patch doesn't address that issue, and leaves
that locking order undefined. The solution that we release the mmap_sem if
tryreserve fails and wait for the buffer to become unreserved is something
we want in any case, and follows how the core vm system waits for pages
to be come unlocked while releasing the mmap_sem.

The code also outlines what needs to be changed if we want to establish the
locking order as mmap_sem -> bo::reserve.

One slight issue that remains with this code is that the fault handler might
be prone to starvation if another thread countinously reserves the buffer.
IMO that usage pattern is highly unlikely.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
---
 drivers/gpu/drm/ttm/ttm_bo.c    | 35 ++++++++++++++++++++++++++++++++++-
 drivers/gpu/drm/ttm/ttm_bo_vm.c | 26 ++++++++++++++++++++------
 include/drm/ttm/ttm_bo_api.h    |  4 +++-
 3 files changed, 57 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 8d5a646ebe6a..07e02c4bf5a8 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -151,7 +151,7 @@ static void ttm_bo_release_list(struct kref *list_kref)
 	atomic_dec(&bo->glob->bo_count);
 	if (bo->resv == &bo->ttm_resv)
 		reservation_object_fini(&bo->ttm_resv);
-
+	mutex_destroy(&bo->wu_mutex);
 	if (bo->destroy)
 		bo->destroy(bo);
 	else {
@@ -1123,6 +1123,7 @@ int ttm_bo_init(struct ttm_bo_device *bdev,
 	INIT_LIST_HEAD(&bo->ddestroy);
 	INIT_LIST_HEAD(&bo->swap);
 	INIT_LIST_HEAD(&bo->io_reserve_lru);
+	mutex_init(&bo->wu_mutex);
 	bo->bdev = bdev;
 	bo->glob = bdev->glob;
 	bo->type = type;
@@ -1704,3 +1705,35 @@ void ttm_bo_swapout_all(struct ttm_bo_device *bdev)
 		;
 }
 EXPORT_SYMBOL(ttm_bo_swapout_all);
+
+/**
+ * ttm_bo_wait_unreserved - interruptible wait for a buffer object to become
+ * unreserved
+ *
+ * @bo: Pointer to buffer
+ */
+int ttm_bo_wait_unreserved(struct ttm_buffer_object *bo)
+{
+	int ret;
+
+	/*
+	 * In the absense of a wait_unlocked API,
+	 * Use the bo::wu_mutex to avoid triggering livelocks due to
+	 * concurrent use of this function. Note that this use of
+	 * bo::wu_mutex can go away if we change locking order to
+	 * mmap_sem -> bo::reserve.
+	 */
+	ret = mutex_lock_interruptible(&bo->wu_mutex);
+	if (unlikely(ret != 0))
+		return -ERESTARTSYS;
+	if (!ww_mutex_is_locked(&bo->resv->lock))
+		goto out_unlock;
+	ret = ttm_bo_reserve_nolru(bo, true, false, false, NULL);
+	if (unlikely(ret != 0))
+		goto out_unlock;
+	ww_mutex_unlock(&bo->resv->lock);
+
+out_unlock:
+	mutex_unlock(&bo->wu_mutex);
+	return ret;
+}
diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c
index ac617f3ecd0c..b249ab9b1eb2 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_vm.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c
@@ -107,13 +107,28 @@ static int ttm_bo_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 	/*
 	 * Work around locking order reversal in fault / nopfn
 	 * between mmap_sem and bo_reserve: Perform a trylock operation
-	 * for reserve, and if it fails, retry the fault after scheduling.
+	 * for reserve, and if it fails, retry the fault after waiting
+	 * for the buffer to become unreserved.
 	 */
-
-	ret = ttm_bo_reserve(bo, true, true, false, 0);
+	ret = ttm_bo_reserve(bo, true, true, false, NULL);
 	if (unlikely(ret != 0)) {
-		if (ret == -EBUSY)
-			set_need_resched();
+		if (ret != -EBUSY)
+			return VM_FAULT_NOPAGE;
+
+		if (vmf->flags & FAULT_FLAG_ALLOW_RETRY) {
+			if (!(vmf->flags & FAULT_FLAG_RETRY_NOWAIT)) {
+				up_read(&vma->vm_mm->mmap_sem);
+				(void) ttm_bo_wait_unreserved(bo);
+			}
+
+			return VM_FAULT_RETRY;
+		}
+
+		/*
+		 * If we'd want to change locking order to
+		 * mmap_sem -> bo::reserve, we'd use a blocking reserve here
+		 * instead of retrying the fault...
+		 */
 		return VM_FAULT_NOPAGE;
 	}
 
@@ -123,7 +138,6 @@ static int ttm_bo_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 		case 0:
 			break;
 		case -EBUSY:
-			set_need_resched();
 		case -ERESTARTSYS:
 			retval = VM_FAULT_NOPAGE;
 			goto out_unlock;
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 751eaffbf0d5..ee127ec33c60 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -169,6 +169,7 @@ struct ttm_tt;
  * @offset: The current GPU offset, which can have different meanings
  * depending on the memory type. For SYSTEM type memory, it should be 0.
  * @cur_placement: Hint of current placement.
+ * @wu_mutex: Wait unreserved mutex.
  *
  * Base class for TTM buffer object, that deals with data placement and CPU
  * mappings. GPU mappings are really up to the driver, but for simpler GPUs
@@ -250,6 +251,7 @@ struct ttm_buffer_object {
 
 	struct reservation_object *resv;
 	struct reservation_object ttm_resv;
+	struct mutex wu_mutex;
 };
 
 /**
@@ -702,5 +704,5 @@ extern ssize_t ttm_bo_io(struct ttm_bo_device *bdev, struct file *filp,
 			 size_t count, loff_t *f_pos, bool write);
 
 extern void ttm_bo_swapout_all(struct ttm_bo_device *bdev);
-
+extern int ttm_bo_wait_unreserved(struct ttm_buffer_object *bo);
 #endif
-- 
cgit 


From 09d2014fb0c6bcd0bf60f46e890907facd25d22c Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Wed, 20 Nov 2013 11:43:30 +0100
Subject: ALSA: hda - A casual Dell Headset quirk

You're looking at a casual headset patch,
for a specific hardware it will match,
and suddenly, the headset jack will work,
so please apply this simple quirk!

BugLink: https://bugs.launchpad.net/bugs/1253038
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 8593d4ebd192..a90bfab8530f 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4915,6 +4915,7 @@ static const struct snd_pci_quirk alc662_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1025, 0x038b, "Acer Aspire 8943G", ALC662_FIXUP_ASPIRE),
 	SND_PCI_QUIRK(0x1028, 0x05d8, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x05db, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
+	SND_PCI_QUIRK(0x1028, 0x0625, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x0626, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x103c, 0x1632, "HP RP5800", ALC662_FIXUP_HP_RP5800),
 	SND_PCI_QUIRK(0x1043, 0x1477, "ASUS N56VZ", ALC662_FIXUP_BASS_CHMAP),
-- 
cgit 


From ca499fc87ed945094d952da0eb7eea7dbeb1feec Mon Sep 17 00:00:00 2001
From: Toshi Kani <toshi.kani@hp.com>
Date: Wed, 20 Nov 2013 14:25:34 +0100
Subject: ACPI / hotplug: Fix conflicted PCI bridge notify handlers

The PCI host bridge scan handler installs its own notify handler,
handle_hotplug_event_root(), by itself.  Nevertheless, the ACPI
hotplug framework also installs the common notify handler,
acpi_hotplug_notify_cb(), for PCI root bridges.  This causes
acpi_hotplug_notify_cb() to call _OST method with unsupported
error as hotplug.enabled is not set.

To address this issue, introduce hotplug.ignore flag, which
indicates that the scan handler installs its own notify handler by
itself.  The ACPI hotplug framework does not install the common
notify handler when this flag is set.

Signed-off-by: Toshi Kani <toshi.kani@hp.com>
[rjw: Changed the name of the new flag]
Cc: 3.9+ <stable@vger.kernel.org> # 3.9+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/pci_root.c | 3 +++
 drivers/acpi/scan.c     | 2 +-
 include/acpi/acpi_bus.h | 1 +
 3 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index b5cb729328a4..a84ea1b51a89 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -65,6 +65,9 @@ static struct acpi_scan_handler pci_root_handler = {
 	.ids = root_device_ids,
 	.attach = acpi_pci_root_add,
 	.detach = acpi_pci_root_remove,
+	.hotplug = {
+		.ignore = true,
+	},
 };
 
 static DEFINE_MUTEX(osc_lock);
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index ce518867a18a..e76b5230f476 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1773,7 +1773,7 @@ static void acpi_scan_init_hotplug(acpi_handle handle, int type)
 	 */
 	list_for_each_entry(hwid, &pnp.ids, list) {
 		handler = acpi_scan_match_handler(hwid->id, NULL);
-		if (handler) {
+		if (handler && !handler->hotplug.ignore) {
 			acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY,
 					acpi_hotplug_notify_cb, handler);
 			break;
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index d64a3010332f..5f4bb4501305 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -100,6 +100,7 @@ enum acpi_hotplug_mode {
 struct acpi_hotplug_profile {
 	struct kobject kobj;
 	bool enabled:1;
+	bool ignore:1;
 	enum acpi_hotplug_mode mode;
 };
 
-- 
cgit 


From bdb5c57f209c3b78b3511476b233562496acd997 Mon Sep 17 00:00:00 2001
From: Florian Echtler <floe@butterbrot.org>
Date: Fri, 8 Nov 2013 10:01:13 -0800
Subject: Input: add sur40 driver for Samsung SUR40 (aka MS Surface
 2.0/Pixelsense)

This patch adds support for the built-in multitouch sensor in the Samsung
SUR40 touchscreen device, also known as Microsoft Surface 2.0 or Microsoft
Pixelsense. Support for raw video output from the sensor as well as the
accelerometer will be added in a later patch.

Signed-off-by: Florian Echtler <floe@butterbrot.org>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/Kconfig  |  11 +
 drivers/input/touchscreen/Makefile |   1 +
 drivers/input/touchscreen/sur40.c  | 466 +++++++++++++++++++++++++++++++++++++
 3 files changed, 478 insertions(+)
 create mode 100644 drivers/input/touchscreen/sur40.c

diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 00d1e547b211..961d58d32647 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -906,6 +906,17 @@ config TOUCHSCREEN_STMPE
 	  To compile this driver as a module, choose M here: the
 	  module will be called stmpe-ts.
 
+config TOUCHSCREEN_SUR40
+	tristate "Samsung SUR40 (Surface 2.0/PixelSense) touchscreen"
+	depends on USB
+	select INPUT_POLLDEV
+	help
+	  Say Y here if you want support for the Samsung SUR40 touchscreen
+	  (also known as Microsoft Surface 2.0 or Microsoft PixelSense).
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called sur40.
+
 config TOUCHSCREEN_TPS6507X
 	tristate "TPS6507x based touchscreens"
 	depends on I2C
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 7587883b8d38..62801f213346 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -54,6 +54,7 @@ obj-$(CONFIG_TOUCHSCREEN_PIXCIR)	+= pixcir_i2c_ts.o
 obj-$(CONFIG_TOUCHSCREEN_S3C2410)	+= s3c2410_ts.o
 obj-$(CONFIG_TOUCHSCREEN_ST1232)	+= st1232.o
 obj-$(CONFIG_TOUCHSCREEN_STMPE)		+= stmpe-ts.o
+obj-$(CONFIG_TOUCHSCREEN_SUR40)		+= sur40.o
 obj-$(CONFIG_TOUCHSCREEN_TI_AM335X_TSC)	+= ti_am335x_tsc.o
 obj-$(CONFIG_TOUCHSCREEN_TNETV107X)	+= tnetv107x-ts.o
 obj-$(CONFIG_TOUCHSCREEN_TOUCHIT213)	+= touchit213.o
diff --git a/drivers/input/touchscreen/sur40.c b/drivers/input/touchscreen/sur40.c
new file mode 100644
index 000000000000..cfd1b7e8c001
--- /dev/null
+++ b/drivers/input/touchscreen/sur40.c
@@ -0,0 +1,466 @@
+/*
+ * Surface2.0/SUR40/PixelSense input driver
+ *
+ * Copyright (c) 2013 by Florian 'floe' Echtler <floe@butterbrot.org>
+ *
+ * Derived from the USB Skeleton driver 1.1,
+ * Copyright (c) 2003 Greg Kroah-Hartman (greg@kroah.com)
+ *
+ * and from the Apple USB BCM5974 multitouch driver,
+ * Copyright (c) 2008 Henrik Rydberg (rydberg@euromail.se)
+ *
+ * and from the generic hid-multitouch driver,
+ * Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/completion.h>
+#include <linux/uaccess.h>
+#include <linux/usb.h>
+#include <linux/printk.h>
+#include <linux/input-polldev.h>
+#include <linux/input/mt.h>
+#include <linux/usb/input.h>
+
+/* read 512 bytes from endpoint 0x86 -> get header + blobs */
+struct sur40_header {
+
+	__le16 type;       /* always 0x0001 */
+	__le16 count;      /* count of blobs (if 0: continue prev. packet) */
+
+	__le32 packet_id;  /* unique ID for all packets in one frame */
+
+	__le32 timestamp;  /* milliseconds (inc. by 16 or 17 each frame) */
+	__le32 unknown;    /* "epoch?" always 02/03 00 00 00 */
+
+} __packed;
+
+struct sur40_blob {
+
+	__le16 blob_id;
+
+	u8 action;         /* 0x02 = enter/exit, 0x03 = update (?) */
+	u8 unknown;        /* always 0x01 or 0x02 (no idea what this is?) */
+
+	__le16 bb_pos_x;   /* upper left corner of bounding box */
+	__le16 bb_pos_y;
+
+	__le16 bb_size_x;  /* size of bounding box */
+	__le16 bb_size_y;
+
+	__le16 pos_x;      /* finger tip position */
+	__le16 pos_y;
+
+	__le16 ctr_x;      /* centroid position */
+	__le16 ctr_y;
+
+	__le16 axis_x;     /* somehow related to major/minor axis, mostly: */
+	__le16 axis_y;     /* axis_x == bb_size_y && axis_y == bb_size_x */
+
+	__le32 angle;      /* orientation in radians relative to x axis -
+	                      actually an IEEE754 float, don't use in kernel */
+
+	__le32 area;       /* size in pixels/pressure (?) */
+
+	u8 padding[32];
+
+} __packed;
+
+/* combined header/blob data */
+struct sur40_data {
+	struct sur40_header header;
+	struct sur40_blob   blobs[];
+} __packed;
+
+
+/* version information */
+#define DRIVER_SHORT   "sur40"
+#define DRIVER_AUTHOR  "Florian 'floe' Echtler <floe@butterbrot.org>"
+#define DRIVER_DESC    "Surface2.0/SUR40/PixelSense input driver"
+
+/* vendor and device IDs */
+#define ID_MICROSOFT 0x045e
+#define ID_SUR40     0x0775
+
+/* sensor resolution */
+#define SENSOR_RES_X 1920
+#define SENSOR_RES_Y 1080
+
+/* touch data endpoint */
+#define TOUCH_ENDPOINT 0x86
+
+/* polling interval (ms) */
+#define POLL_INTERVAL 10
+
+/* maximum number of contacts FIXME: this is a guess? */
+#define MAX_CONTACTS 64
+
+/* control commands */
+#define SUR40_GET_VERSION 0xb0 /* 12 bytes string    */
+#define SUR40_UNKNOWN1    0xb3 /*  5 bytes           */
+#define SUR40_UNKNOWN2    0xc1 /* 24 bytes           */
+
+#define SUR40_GET_STATE   0xc5 /*  4 bytes state (?) */
+#define SUR40_GET_SENSORS 0xb1 /*  8 bytes sensors   */
+
+/*
+ * Note: an earlier, non-public version of this driver used USB_RECIP_ENDPOINT
+ * here by mistake which is very likely to have corrupted the firmware EEPROM
+ * on two separate SUR40 devices. Thanks to Alan Stern who spotted this bug.
+ * Should you ever run into a similar problem, the background story to this
+ * incident and instructions on how to fix the corrupted EEPROM are available
+ * at https://floe.butterbrot.org/matrix/hacking/surface/brick.html
+*/
+
+struct sur40_state {
+
+	struct usb_device *usbdev;
+	struct device *dev;
+	struct input_polled_dev *input;
+
+	struct sur40_data *bulk_in_buffer;
+	size_t bulk_in_size;
+	u8 bulk_in_epaddr;
+
+	char phys[64];
+};
+
+static int sur40_command(struct sur40_state *dev,
+			 u8 command, u16 index, void *buffer, u16 size)
+{
+	return usb_control_msg(dev->usbdev, usb_rcvctrlpipe(dev->usbdev, 0),
+			       command,
+			       USB_TYPE_VENDOR | USB_RECIP_DEVICE | USB_DIR_IN,
+			       0x00, index, buffer, size, 1000);
+}
+
+/* Initialization routine, called from sur40_open */
+static int sur40_init(struct sur40_state *dev)
+{
+	int result;
+	u8 buffer[24];
+
+	/* stupidly replay the original MS driver init sequence */
+	result = sur40_command(dev, SUR40_GET_VERSION, 0x00, buffer, 12);
+	if (result < 0)
+		return result;
+
+	result = sur40_command(dev, SUR40_GET_VERSION, 0x01, buffer, 12);
+	if (result < 0)
+		return result;
+
+	result = sur40_command(dev, SUR40_GET_VERSION, 0x02, buffer, 12);
+	if (result < 0)
+		return result;
+
+	result = sur40_command(dev, SUR40_UNKNOWN2,    0x00, buffer, 24);
+	if (result < 0)
+		return result;
+
+	result = sur40_command(dev, SUR40_UNKNOWN1,    0x00, buffer,  5);
+	if (result < 0)
+		return result;
+
+	result = sur40_command(dev, SUR40_GET_VERSION, 0x03, buffer, 12);
+
+	/*
+	 * Discard the result buffer - no known data inside except
+	 * some version strings, maybe extract these sometime...
+	 */
+
+	return result;
+}
+
+/*
+ * Callback routines from input_polled_dev
+ */
+
+/* Enable the device, polling will now start. */
+static void sur40_open(struct input_polled_dev *polldev)
+{
+	struct sur40_state *sur40 = polldev->private;
+
+	dev_dbg(sur40->dev, "open\n");
+	sur40_init(sur40);
+}
+
+/* Disable device, polling has stopped. */
+static void sur40_close(struct input_polled_dev *polldev)
+{
+	struct sur40_state *sur40 = polldev->private;
+
+	dev_dbg(sur40->dev, "close\n");
+	/*
+	 * There is no known way to stop the device, so we simply
+	 * stop polling.
+	 */
+}
+
+/*
+ * This function is called when a whole contact has been processed,
+ * so that it can assign it to a slot and store the data there.
+ */
+static void sur40_report_blob(struct sur40_blob *blob, struct input_dev *input)
+{
+	int wide, major, minor;
+
+	int bb_size_x = le16_to_cpu(blob->bb_size_x);
+	int bb_size_y = le16_to_cpu(blob->bb_size_y);
+
+	int pos_x = le16_to_cpu(blob->pos_x);
+	int pos_y = le16_to_cpu(blob->pos_y);
+
+	int ctr_x = le16_to_cpu(blob->ctr_x);
+	int ctr_y = le16_to_cpu(blob->ctr_y);
+
+	int slotnum = input_mt_get_slot_by_key(input, blob->blob_id);
+	if (slotnum < 0 || slotnum >= MAX_CONTACTS)
+		return;
+
+	input_mt_slot(input, slotnum);
+	input_mt_report_slot_state(input, MT_TOOL_FINGER, 1);
+	wide = (bb_size_x > bb_size_y);
+	major = max(bb_size_x, bb_size_y);
+	minor = min(bb_size_x, bb_size_y);
+
+	input_report_abs(input, ABS_MT_POSITION_X, pos_x);
+	input_report_abs(input, ABS_MT_POSITION_Y, pos_y);
+	input_report_abs(input, ABS_MT_TOOL_X, ctr_x);
+	input_report_abs(input, ABS_MT_TOOL_Y, ctr_y);
+
+	/* TODO: use a better orientation measure */
+	input_report_abs(input, ABS_MT_ORIENTATION, wide);
+	input_report_abs(input, ABS_MT_TOUCH_MAJOR, major);
+	input_report_abs(input, ABS_MT_TOUCH_MINOR, minor);
+}
+
+/* core function: poll for new input data */
+static void sur40_poll(struct input_polled_dev *polldev)
+{
+
+	struct sur40_state *sur40 = polldev->private;
+	struct input_dev *input = polldev->input;
+	int result, bulk_read, need_blobs, packet_blobs, i;
+	u32 packet_id;
+
+	struct sur40_header *header = &sur40->bulk_in_buffer->header;
+	struct sur40_blob *inblob = &sur40->bulk_in_buffer->blobs[0];
+
+	dev_dbg(sur40->dev, "poll\n");
+
+	need_blobs = -1;
+
+	do {
+
+		/* perform a blocking bulk read to get data from the device */
+		result = usb_bulk_msg(sur40->usbdev,
+			usb_rcvbulkpipe(sur40->usbdev, sur40->bulk_in_epaddr),
+			sur40->bulk_in_buffer, sur40->bulk_in_size,
+			&bulk_read, 1000);
+
+		dev_dbg(sur40->dev, "received %d bytes\n", bulk_read);
+
+		if (result < 0) {
+			dev_err(sur40->dev, "error in usb_bulk_read\n");
+			return;
+		}
+
+		result = bulk_read - sizeof(struct sur40_header);
+
+		if (result % sizeof(struct sur40_blob) != 0) {
+			dev_err(sur40->dev, "transfer size mismatch\n");
+			return;
+		}
+
+		/* first packet? */
+		if (need_blobs == -1) {
+			need_blobs = le16_to_cpu(header->count);
+			dev_dbg(sur40->dev, "need %d blobs\n", need_blobs);
+			packet_id = header->packet_id;
+		}
+
+		/*
+		 * Sanity check. when video data is also being retrieved, the
+		 * packet ID will usually increase in the middle of a series
+		 * instead of at the end.
+		 */
+		if (packet_id != header->packet_id)
+			dev_warn(sur40->dev, "packet ID mismatch\n");
+
+		packet_blobs = result / sizeof(struct sur40_blob);
+		dev_dbg(sur40->dev, "received %d blobs\n", packet_blobs);
+
+		/* packets always contain at least 4 blobs, even if empty */
+		if (packet_blobs > need_blobs)
+			packet_blobs = need_blobs;
+
+		for (i = 0; i < packet_blobs; i++) {
+			need_blobs--;
+			dev_dbg(sur40->dev, "processing blob\n");
+			sur40_report_blob(&(inblob[i]), input);
+		}
+
+	} while (need_blobs > 0);
+
+	input_mt_sync_frame(input);
+	input_sync(input);
+}
+
+/* Initialize input device parameters. */
+static void sur40_input_setup(struct input_dev *input_dev)
+{
+	__set_bit(EV_KEY, input_dev->evbit);
+	__set_bit(EV_ABS, input_dev->evbit);
+
+	input_set_abs_params(input_dev, ABS_MT_POSITION_X,
+			     0, SENSOR_RES_X, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
+			     0, SENSOR_RES_Y, 0, 0);
+
+	input_set_abs_params(input_dev, ABS_MT_TOOL_X,
+			     0, SENSOR_RES_X, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_TOOL_Y,
+			     0, SENSOR_RES_Y, 0, 0);
+
+	/* max value unknown, but major/minor axis
+	 * can never be larger than screen */
+	input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR,
+			     0, SENSOR_RES_X, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_TOUCH_MINOR,
+			     0, SENSOR_RES_Y, 0, 0);
+
+	input_set_abs_params(input_dev, ABS_MT_ORIENTATION, 0, 1, 0, 0);
+
+	input_mt_init_slots(input_dev, MAX_CONTACTS,
+			    INPUT_MT_DIRECT | INPUT_MT_DROP_UNUSED);
+}
+
+/* Check candidate USB interface. */
+static int sur40_probe(struct usb_interface *interface,
+		       const struct usb_device_id *id)
+{
+	struct usb_device *usbdev = interface_to_usbdev(interface);
+	struct sur40_state *sur40;
+	struct usb_host_interface *iface_desc;
+	struct usb_endpoint_descriptor *endpoint;
+	struct input_polled_dev *poll_dev;
+	int error;
+
+	/* Check if we really have the right interface. */
+	iface_desc = &interface->altsetting[0];
+	if (iface_desc->desc.bInterfaceClass != 0xFF)
+		return -ENODEV;
+
+	/* Use endpoint #4 (0x86). */
+	endpoint = &iface_desc->endpoint[4].desc;
+	if (endpoint->bEndpointAddress != TOUCH_ENDPOINT)
+		return -ENODEV;
+
+	/* Allocate memory for our device state and initialize it. */
+	sur40 = kzalloc(sizeof(struct sur40_state), GFP_KERNEL);
+	if (!sur40)
+		return -ENOMEM;
+
+	poll_dev = input_allocate_polled_device();
+	if (!poll_dev) {
+		error = -ENOMEM;
+		goto err_free_dev;
+	}
+
+	/* Set up polled input device control structure */
+	poll_dev->private = sur40;
+	poll_dev->poll_interval = POLL_INTERVAL;
+	poll_dev->open = sur40_open;
+	poll_dev->poll = sur40_poll;
+	poll_dev->close = sur40_close;
+
+	/* Set up regular input device structure */
+	sur40_input_setup(poll_dev->input);
+
+	poll_dev->input->name = "Samsung SUR40";
+	usb_to_input_id(usbdev, &poll_dev->input->id);
+	usb_make_path(usbdev, sur40->phys, sizeof(sur40->phys));
+	strlcat(sur40->phys, "/input0", sizeof(sur40->phys));
+	poll_dev->input->phys = sur40->phys;
+	poll_dev->input->dev.parent = &interface->dev;
+
+	sur40->usbdev = usbdev;
+	sur40->dev = &interface->dev;
+	sur40->input = poll_dev;
+
+	/* use the bulk-in endpoint tested above */
+	sur40->bulk_in_size = usb_endpoint_maxp(endpoint);
+	sur40->bulk_in_epaddr = endpoint->bEndpointAddress;
+	sur40->bulk_in_buffer = kmalloc(sur40->bulk_in_size, GFP_KERNEL);
+	if (!sur40->bulk_in_buffer) {
+		dev_err(&interface->dev, "Unable to allocate input buffer.");
+		error = -ENOMEM;
+		goto err_free_polldev;
+	}
+
+	error = input_register_polled_device(poll_dev);
+	if (error) {
+		dev_err(&interface->dev,
+			"Unable to register polled input device.");
+		goto err_free_buffer;
+	}
+
+	/* we can register the device now, as it is ready */
+	usb_set_intfdata(interface, sur40);
+	dev_dbg(&interface->dev, "%s is now attached\n", DRIVER_DESC);
+
+	return 0;
+
+err_free_buffer:
+	kfree(sur40->bulk_in_buffer);
+err_free_polldev:
+	input_free_polled_device(sur40->input);
+err_free_dev:
+	kfree(sur40);
+
+	return error;
+}
+
+/* Unregister device & clean up. */
+static void sur40_disconnect(struct usb_interface *interface)
+{
+	struct sur40_state *sur40 = usb_get_intfdata(interface);
+
+	input_unregister_polled_device(sur40->input);
+	input_free_polled_device(sur40->input);
+	kfree(sur40->bulk_in_buffer);
+	kfree(sur40);
+
+	usb_set_intfdata(interface, NULL);
+	dev_dbg(&interface->dev, "%s is now disconnected\n", DRIVER_DESC);
+}
+
+static const struct usb_device_id sur40_table[] = {
+	{ USB_DEVICE(ID_MICROSOFT, ID_SUR40) },  /* Samsung SUR40 */
+	{ }                                      /* terminating null entry */
+};
+MODULE_DEVICE_TABLE(usb, sur40_table);
+
+/* USB-specific object needed to register this driver with the USB subsystem. */
+static struct usb_driver sur40_driver = {
+	.name = DRIVER_SHORT,
+	.probe = sur40_probe,
+	.disconnect = sur40_disconnect,
+	.id_table = sur40_table,
+};
+
+module_usb_driver(sur40_driver);
+
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
-- 
cgit 


From f727b490efd0941a8d720fd07012dcb7f0740f77 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 20 Nov 2013 15:02:10 +0100
Subject: drm/i915: Fix gen3 self-refresh watermarks
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This regression has been introduced in

commit 4fe8590a921d0b2e36e542dbfa89a8c5993f5a3f
Author: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date:   Wed Sep 4 18:25:22 2013 +0300

    drm/i915: Use adjusted_mode appropriately when computing watermarks

I guess we should renable the enabled local variable into something a
notch more descriptive, but that's something for -next.

The effect on my i945gme netbook is pretty severe amounts of underruns
- usually the very first pixel gets used for the entire screeen.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/i915/intel_pm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index e41d3af9d3db..caf2ee4e5441 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -1625,7 +1625,7 @@ static void i9xx_update_wm(struct drm_crtc *unused_crtc)
 			&to_intel_crtc(enabled)->config.adjusted_mode;
 		int clock = adjusted_mode->crtc_clock;
 		int htotal = adjusted_mode->htotal;
-		int hdisplay = to_intel_crtc(crtc)->config.pipe_src_w;
+		int hdisplay = to_intel_crtc(enabled)->config.pipe_src_w;
 		int pixel_size = enabled->fb->bits_per_pixel / 8;
 		unsigned long line_time_us;
 		int entries;
-- 
cgit 


From 3e68ce1bc72e5d6615677ec5a8b0a9bcb6c7a490 Mon Sep 17 00:00:00 2001
From: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Date: Wed, 20 Nov 2013 14:37:09 +0000
Subject: ASoC: arizona: Set FLL to free-run before disabling

The FLL must be placed into free-run mode before disabling
to allow it to entirely shut down.

Signed-off-by: Richard Fitzgerald <rf@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
---
 sound/soc/codecs/arizona.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/soc/codecs/arizona.c b/sound/soc/codecs/arizona.c
index 6f05b17d1965..fea991031be1 100644
--- a/sound/soc/codecs/arizona.c
+++ b/sound/soc/codecs/arizona.c
@@ -1528,6 +1528,8 @@ static void arizona_enable_fll(struct arizona_fll *fll,
 	/* Clear any pending completions */
 	try_wait_for_completion(&fll->ok);
 
+	regmap_update_bits(arizona->regmap, fll->base + 1,
+			   ARIZONA_FLL1_FREERUN, 0);
 	regmap_update_bits(arizona->regmap, fll->base + 1,
 			   ARIZONA_FLL1_ENA, ARIZONA_FLL1_ENA);
 	if (use_sync)
@@ -1546,6 +1548,8 @@ static void arizona_disable_fll(struct arizona_fll *fll)
 	struct arizona *arizona = fll->arizona;
 	bool change;
 
+	regmap_update_bits(arizona->regmap, fll->base + 1,
+			   ARIZONA_FLL1_FREERUN, ARIZONA_FLL1_FREERUN);
 	regmap_update_bits_check(arizona->regmap, fll->base + 1,
 				 ARIZONA_FLL1_ENA, 0, &change);
 	regmap_update_bits(arizona->regmap, fll->base + 0x11,
-- 
cgit 


From 0fc28fc030a85aa3d6d14e9e9fca0c8237c9ffb5 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 20 Nov 2013 12:15:07 +0100
Subject: ALSA: hda - Fix unbalanced runtime PM notification at resume

When a codec is resumed, it keeps the power on while the resuming
phase via hda_keep_power_on(), then turns down via
snd_hda_power_down().  At that point, snd_hda_power_down() notifies
the power down to the controller, and this may confuse the refcount if
the codec was already powered up before the resume.

In the end result, the controller goes to runtime suspend even before
the codec is kicked off to the power save, and the communication
stalls happens.

The fix is to add the power-up notification together with
hda_keep_power_on(), and clears the flag appropriately.

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_codec.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index afb90f48867f..69178c4f4113 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -4000,6 +4000,10 @@ static void hda_call_codec_resume(struct hda_codec *codec)
 	 * in the resume / power-save sequence
 	 */
 	hda_keep_power_on(codec);
+	if (codec->pm_down_notified) {
+		codec->pm_down_notified = 0;
+		hda_call_pm_notify(codec->bus, true);
+	}
 	hda_set_power_state(codec, AC_PWRST_D0);
 	restore_shutup_pins(codec);
 	hda_exec_init_verbs(codec);
-- 
cgit 


From 3a4cbc190643d0c6f7ca36a84af8367947f558c7 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Wed, 20 Nov 2013 17:28:23 +0800
Subject: hwmon: (acpi_power_meter) Fix acpi_bus_get_device() return value
 check

Since acpi_bus_get_device() returns plain int and not acpi_status,
ACPI_FAILURE() should not be used for checking its return value.  Fix
that.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
---
 drivers/hwmon/acpi_power_meter.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c
index 8d40da314a8e..6a34f7f48eb9 100644
--- a/drivers/hwmon/acpi_power_meter.c
+++ b/drivers/hwmon/acpi_power_meter.c
@@ -602,9 +602,8 @@ static int read_domain_devices(struct acpi_power_meter_resource *resource)
 
 		/* Create a symlink to domain objects */
 		resource->domain_devices[i] = NULL;
-		status = acpi_bus_get_device(element->reference.handle,
-					     &resource->domain_devices[i]);
-		if (ACPI_FAILURE(status))
+		if (acpi_bus_get_device(element->reference.handle,
+					&resource->domain_devices[i]))
 			continue;
 
 		obj = resource->domain_devices[i];
-- 
cgit 


From c529aa30337b928bd6bc34293608cb3d4505856e Mon Sep 17 00:00:00 2001
From: Jon Mason <jon.mason@intel.com>
Date: Fri, 6 Sep 2013 16:51:16 -0700
Subject: NTB: Xeon Doorbell errata workaround

Modifications to the 14th bit of the B2BDOORBELL register will not be
mirrored to the remote system due to a hardware issue.  To get around
the issue, shrink the number of available doorbell bits by 1.  The max
number of doorbells was being used as a way to referencing the Link
Doorbell bit.  Since this would no longer work, the driver must now
explicitly reference that bit.

This does not affect the xeon_errata_workaround case, as it is not using
the b2bdoorbell register.

Signed-off-by: Jon Mason <jon.mason@intel.com>
---
 drivers/ntb/ntb_hw.c   | 20 +++++++++++++++-----
 drivers/ntb/ntb_regs.h |  1 +
 2 files changed, 16 insertions(+), 5 deletions(-)

diff --git a/drivers/ntb/ntb_hw.c b/drivers/ntb/ntb_hw.c
index 1cb6e51e6bda..6c9d73348735 100644
--- a/drivers/ntb/ntb_hw.c
+++ b/drivers/ntb/ntb_hw.c
@@ -678,6 +678,7 @@ static int ntb_xeon_setup(struct ntb_device *ndev)
 				return -EINVAL;
 
 			ndev->limits.max_mw = SNB_ERRATA_MAX_MW;
+			ndev->limits.max_db_bits = SNB_MAX_DB_BITS;
 			ndev->reg_ofs.spad_write = ndev->mw[1].vbase +
 						   SNB_SPAD_OFFSET;
 			ndev->reg_ofs.rdb = ndev->mw[1].vbase +
@@ -690,6 +691,13 @@ static int ntb_xeon_setup(struct ntb_device *ndev)
 			       SNB_PBAR4LMT_OFFSET);
 		} else {
 			ndev->limits.max_mw = SNB_MAX_MW;
+
+			/* HW Errata on bit 14 of b2bdoorbell register.  Writes
+			 * will not be mirrored to the remote system.  Shrink
+			 * the number of bits by one, since bit 14 is the last
+			 * bit.
+			 */
+			ndev->limits.max_db_bits = SNB_MAX_DB_BITS - 1;
 			ndev->reg_ofs.spad_write = ndev->reg_base +
 						   SNB_B2B_SPAD_OFFSET;
 			ndev->reg_ofs.rdb = ndev->reg_base +
@@ -769,6 +777,7 @@ static int ntb_xeon_setup(struct ntb_device *ndev)
 		 * have an equal amount.
 		 */
 		ndev->limits.max_spads = SNB_MAX_COMPAT_SPADS / 2;
+		ndev->limits.max_db_bits = SNB_MAX_DB_BITS;
 		/* Note: The SDOORBELL is the cause of the errata.  You REALLY
 		 * don't want to touch it.
 		 */
@@ -793,6 +802,7 @@ static int ntb_xeon_setup(struct ntb_device *ndev)
 		 * have an equal amount.
 		 */
 		ndev->limits.max_spads = SNB_MAX_COMPAT_SPADS / 2;
+		ndev->limits.max_db_bits = SNB_MAX_DB_BITS;
 		ndev->reg_ofs.rdb = ndev->reg_base + SNB_PDOORBELL_OFFSET;
 		ndev->reg_ofs.ldb = ndev->reg_base + SNB_SDOORBELL_OFFSET;
 		ndev->reg_ofs.ldb_mask = ndev->reg_base + SNB_SDBMSK_OFFSET;
@@ -819,7 +829,6 @@ static int ntb_xeon_setup(struct ntb_device *ndev)
 	ndev->reg_ofs.lnk_stat = ndev->reg_base + SNB_SLINK_STATUS_OFFSET;
 	ndev->reg_ofs.spci_cmd = ndev->reg_base + SNB_PCICMD_OFFSET;
 
-	ndev->limits.max_db_bits = SNB_MAX_DB_BITS;
 	ndev->limits.msix_cnt = SNB_MSIX_CNT;
 	ndev->bits_per_vector = SNB_DB_BITS_PER_VEC;
 
@@ -986,7 +995,7 @@ static irqreturn_t xeon_event_msix_irq(int irq, void *dev)
 		dev_err(&ndev->pdev->dev, "Error determining link status\n");
 
 	/* bit 15 is always the link bit */
-	writew(1 << ndev->limits.max_db_bits, ndev->reg_ofs.ldb);
+	writew(1 << SNB_LINK_DB, ndev->reg_ofs.ldb);
 
 	return IRQ_HANDLED;
 }
@@ -1176,9 +1185,10 @@ static int ntb_setup_interrupts(struct ntb_device *ndev)
 	 */
 	if (ndev->hw_type == BWD_HW)
 		writeq(~0, ndev->reg_ofs.ldb_mask);
-	else
-		writew(~(1 << ndev->limits.max_db_bits),
-		       ndev->reg_ofs.ldb_mask);
+	else {
+		u16 var = 1 << SNB_LINK_DB;
+		writew(~var, ndev->reg_ofs.ldb_mask);
+	}
 
 	rc = ntb_setup_msix(ndev);
 	if (!rc)
diff --git a/drivers/ntb/ntb_regs.h b/drivers/ntb/ntb_regs.h
index aa4bdd393c58..5381b65a6f3a 100644
--- a/drivers/ntb/ntb_regs.h
+++ b/drivers/ntb/ntb_regs.h
@@ -55,6 +55,7 @@
 #define SNB_MAX_COMPAT_SPADS	16
 /* Reserve the uppermost bit for link interrupt */
 #define SNB_MAX_DB_BITS		15
+#define SNB_LINK_DB		15
 #define SNB_DB_BITS_PER_VEC	5
 #define SNB_MAX_MW		2
 #define SNB_ERRATA_MAX_MW	1
-- 
cgit 


From 9fec60c41416c9c40ec520bb79064345d2396632 Mon Sep 17 00:00:00 2001
From: Jon Mason <jon.mason@intel.com>
Date: Fri, 13 Sep 2013 17:05:23 -0700
Subject: NTB: Fix NTB-RP Link Up

The Xeon NTB-RP setup, the transparent side does not get a link up/down
interrupt.  Since the presence of a NTB device on the transparent side
means that we have a NTB link up, we can work around the lack of an
interrupt by simply calling the link up function to notify the upper
layers.

Signed-off-by: Jon Mason <jon.mason@intel.com>
---
 drivers/ntb/ntb_hw.c | 36 ++++++++++++++++++++++++++++--------
 1 file changed, 28 insertions(+), 8 deletions(-)

diff --git a/drivers/ntb/ntb_hw.c b/drivers/ntb/ntb_hw.c
index 6c9d73348735..a9b065f3973a 100644
--- a/drivers/ntb/ntb_hw.c
+++ b/drivers/ntb/ntb_hw.c
@@ -1296,6 +1296,32 @@ static void ntb_free_debugfs(struct ntb_device *ndev)
 	}
 }
 
+static void ntb_hw_link_up(struct ntb_device *ndev)
+{
+	if (ndev->conn_type == NTB_CONN_TRANSPARENT)
+		ntb_link_event(ndev, NTB_LINK_UP);
+	else
+		/* Let's bring the NTB link up */
+		writel(NTB_CNTL_BAR23_SNOOP | NTB_CNTL_BAR45_SNOOP,
+		       ndev->reg_ofs.lnk_cntl);
+}
+
+static void ntb_hw_link_down(struct ntb_device *ndev)
+{
+	u32 ntb_cntl;
+
+	if (ndev->conn_type == NTB_CONN_TRANSPARENT) {
+		ntb_link_event(ndev, NTB_LINK_DOWN);
+		return;
+	}
+
+	/* Bring NTB link down */
+	ntb_cntl = readl(ndev->reg_ofs.lnk_cntl);
+	ntb_cntl &= ~(NTB_CNTL_BAR23_SNOOP | NTB_CNTL_BAR45_SNOOP);
+	ntb_cntl |= NTB_CNTL_LINK_DISABLE;
+	writel(ntb_cntl, ndev->reg_ofs.lnk_cntl);
+}
+
 static int ntb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 {
 	struct ntb_device *ndev;
@@ -1384,9 +1410,7 @@ static int ntb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	if (rc)
 		goto err6;
 
-	/* Let's bring the NTB link up */
-	writel(NTB_CNTL_BAR23_SNOOP | NTB_CNTL_BAR45_SNOOP,
-	       ndev->reg_ofs.lnk_cntl);
+	ntb_hw_link_up(ndev);
 
 	return 0;
 
@@ -1416,12 +1440,8 @@ static void ntb_pci_remove(struct pci_dev *pdev)
 {
 	struct ntb_device *ndev = pci_get_drvdata(pdev);
 	int i;
-	u32 ntb_cntl;
 
-	/* Bring NTB link down */
-	ntb_cntl = readl(ndev->reg_ofs.lnk_cntl);
-	ntb_cntl |= NTB_CNTL_LINK_DISABLE;
-	writel(ntb_cntl, ndev->reg_ofs.lnk_cntl);
+	ntb_hw_link_down(ndev);
 
 	ntb_transport_free(ndev->ntb_transport);
 
-- 
cgit 


From 9739047380a4a1a9f3eba4deea2f5978703b4ecb Mon Sep 17 00:00:00 2001
From: Alexander Gordeev <agordeev@redhat.com>
Date: Wed, 2 Oct 2013 12:49:09 +0200
Subject: ntb: Fix missed call to pci_enable_msix()

Current MSI-X enablement code assumes MSI-Xs were successfully
allocated in case less than requested vectors were available.
That assumption is wrong, since MSI-Xs should be enabled with
a repeated call to pci_enable_msix(). This update fixes this.

Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Jon Mason <jon.mason@intel.com>
---
 drivers/ntb/ntb_hw.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/ntb/ntb_hw.c b/drivers/ntb/ntb_hw.c
index a9b065f3973a..fa97948e66ad 100644
--- a/drivers/ntb/ntb_hw.c
+++ b/drivers/ntb/ntb_hw.c
@@ -1084,6 +1084,10 @@ static int ntb_setup_msix(struct ntb_device *ndev)
 			 "Only %d MSI-X vectors.  Limiting the number of queues to that number.\n",
 			 rc);
 		msix_entries = rc;
+
+		rc = pci_enable_msix(pdev, ndev->msix_entries, msix_entries);
+		if (rc)
+			goto err1;
 	}
 
 	for (i = 0; i < msix_entries; i++) {
-- 
cgit 


From fca4d5188c1123ff63205e35e2c5f551a21d30c4 Mon Sep 17 00:00:00 2001
From: Jon Mason <jon.mason@intel.com>
Date: Mon, 9 Sep 2013 13:39:55 -0700
Subject: NTB: Fix ntb_transport link down race

A WARN_ON is being hit in ntb_qp_link_work due to the NTB transport link
being down while the ntb qp link is still active.  This is caused by the
transport link being brought down prior to the qp link worker thread
being terminated.  To correct this, shutdown the qp's prior to bringing
the transport link down.  Also, only call the qp worker thread if it is
in interrupt context, otherwise call the function directly.

Signed-off-by: Jon Mason <jon.mason@intel.com>
---
 drivers/ntb/ntb_transport.c | 43 ++++++++++++++++++++++++++++---------------
 1 file changed, 28 insertions(+), 15 deletions(-)

diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index 12a9e83c008b..7010f23dab18 100644
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -584,11 +584,8 @@ static int ntb_set_mw(struct ntb_transport *nt, int num_mw, unsigned int size)
 	return 0;
 }
 
-static void ntb_qp_link_cleanup(struct work_struct *work)
+static void ntb_qp_link_cleanup(struct ntb_transport_qp *qp)
 {
-	struct ntb_transport_qp *qp = container_of(work,
-						   struct ntb_transport_qp,
-						   link_cleanup);
 	struct ntb_transport *nt = qp->transport;
 	struct pci_dev *pdev = ntb_query_pdev(nt->ndev);
 
@@ -602,6 +599,16 @@ static void ntb_qp_link_cleanup(struct work_struct *work)
 
 	dev_info(&pdev->dev, "qp %d: Link Down\n", qp->qp_num);
 	qp->qp_link = NTB_LINK_DOWN;
+}
+
+static void ntb_qp_link_cleanup_work(struct work_struct *work)
+{
+	struct ntb_transport_qp *qp = container_of(work,
+						   struct ntb_transport_qp,
+						   link_cleanup);
+	struct ntb_transport *nt = qp->transport;
+
+	ntb_qp_link_cleanup(qp);
 
 	if (nt->transport_link == NTB_LINK_UP)
 		schedule_delayed_work(&qp->link_work,
@@ -613,22 +620,20 @@ static void ntb_qp_link_down(struct ntb_transport_qp *qp)
 	schedule_work(&qp->link_cleanup);
 }
 
-static void ntb_transport_link_cleanup(struct work_struct *work)
+static void ntb_transport_link_cleanup(struct ntb_transport *nt)
 {
-	struct ntb_transport *nt = container_of(work, struct ntb_transport,
-						link_cleanup);
 	int i;
 
+	/* Pass along the info to any clients */
+	for (i = 0; i < nt->max_qps; i++)
+		if (!test_bit(i, &nt->qp_bitmap))
+			ntb_qp_link_cleanup(&nt->qps[i]);
+
 	if (nt->transport_link == NTB_LINK_DOWN)
 		cancel_delayed_work_sync(&nt->link_work);
 	else
 		nt->transport_link = NTB_LINK_DOWN;
 
-	/* Pass along the info to any clients */
-	for (i = 0; i < nt->max_qps; i++)
-		if (!test_bit(i, &nt->qp_bitmap))
-			ntb_qp_link_down(&nt->qps[i]);
-
 	/* The scratchpad registers keep the values if the remote side
 	 * goes down, blast them now to give them a sane value the next
 	 * time they are accessed
@@ -637,6 +642,14 @@ static void ntb_transport_link_cleanup(struct work_struct *work)
 		ntb_write_local_spad(nt->ndev, i, 0);
 }
 
+static void ntb_transport_link_cleanup_work(struct work_struct *work)
+{
+	struct ntb_transport *nt = container_of(work, struct ntb_transport,
+						link_cleanup);
+
+	ntb_transport_link_cleanup(nt);
+}
+
 static void ntb_transport_event_callback(void *data, enum ntb_hw_event event)
 {
 	struct ntb_transport *nt = data;
@@ -880,7 +893,7 @@ static int ntb_transport_init_queue(struct ntb_transport *nt,
 	}
 
 	INIT_DELAYED_WORK(&qp->link_work, ntb_qp_link_work);
-	INIT_WORK(&qp->link_cleanup, ntb_qp_link_cleanup);
+	INIT_WORK(&qp->link_cleanup, ntb_qp_link_cleanup_work);
 
 	spin_lock_init(&qp->ntb_rx_pend_q_lock);
 	spin_lock_init(&qp->ntb_rx_free_q_lock);
@@ -936,7 +949,7 @@ int ntb_transport_init(struct pci_dev *pdev)
 	}
 
 	INIT_DELAYED_WORK(&nt->link_work, ntb_transport_link_work);
-	INIT_WORK(&nt->link_cleanup, ntb_transport_link_cleanup);
+	INIT_WORK(&nt->link_cleanup, ntb_transport_link_cleanup_work);
 
 	rc = ntb_register_event_callback(nt->ndev,
 					 ntb_transport_event_callback);
@@ -972,7 +985,7 @@ void ntb_transport_free(void *transport)
 	struct ntb_device *ndev = nt->ndev;
 	int i;
 
-	nt->transport_link = NTB_LINK_DOWN;
+	ntb_transport_link_cleanup(nt);
 
 	/* verify that all the qp's are freed */
 	for (i = 0; i < nt->max_qps; i++) {
-- 
cgit 


From 94681194e667c33ba303f1225814197594cbfc34 Mon Sep 17 00:00:00 2001
From: Jon Mason <jon.mason@intel.com>
Date: Tue, 19 Nov 2013 09:34:47 -0700
Subject: NTB: correct dmaengine_get/put usage

dmaengine_get() causes the initialization of the per-cpu channel tables.
It needs to be called prior to dma_find_channel().

Initial version by Dan Williams <dan.j.williams@intel.com>

Signed-off-by: Jon Mason <jon.mason@intel.com>
---
 drivers/ntb/ntb_transport.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index 7010f23dab18..172501d47600 100644
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -1419,11 +1419,12 @@ ntb_transport_create_queue(void *data, struct pci_dev *pdev,
 	qp->tx_handler = handlers->tx_handler;
 	qp->event_handler = handlers->event_handler;
 
+	dmaengine_get();
 	qp->dma_chan = dma_find_channel(DMA_MEMCPY);
-	if (!qp->dma_chan)
+	if (!qp->dma_chan) {
+		dmaengine_put();
 		dev_info(&pdev->dev, "Unable to allocate DMA channel, using CPU instead\n");
-	else
-		dmaengine_get();
+	}
 
 	for (i = 0; i < NTB_QP_DEF_NUM_ENTRIES; i++) {
 		entry = kzalloc(sizeof(struct ntb_queue_entry), GFP_ATOMIC);
@@ -1464,6 +1465,8 @@ err2:
 err1:
 	while ((entry = ntb_list_rm(&qp->ntb_rx_free_q_lock, &qp->rx_free_q)))
 		kfree(entry);
+	if (qp->dma_chan)
+		dmaengine_put();
 	set_bit(free_queue, &nt->qp_bitmap);
 err:
 	return NULL;
-- 
cgit 


From dcf81964e129da6140ff98a1a772044c62a7aa2e Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Mon, 21 Oct 2013 07:19:42 +0200
Subject: NTB: remove duplicate defines

Remove duplicate defines in drivers/ntb/ntb_regs.h

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Signed-off-by: Jon Mason <jon.mason@intel.com>
---
 drivers/ntb/ntb_regs.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/ntb/ntb_regs.h b/drivers/ntb/ntb_regs.h
index 5381b65a6f3a..a689f1ca630f 100644
--- a/drivers/ntb/ntb_regs.h
+++ b/drivers/ntb/ntb_regs.h
@@ -76,9 +76,6 @@
 #define SNB_SBAR2XLAT_OFFSET	0x0030
 #define SNB_SBAR4XLAT_OFFSET	0x0038
 #define SNB_SBAR0BASE_OFFSET	0x0040
-#define SNB_SBAR0BASE_OFFSET	0x0040
-#define SNB_SBAR2BASE_OFFSET	0x0048
-#define SNB_SBAR4BASE_OFFSET	0x0050
 #define SNB_SBAR2BASE_OFFSET	0x0048
 #define SNB_SBAR4BASE_OFFSET	0x0050
 #define SNB_NTBCNTL_OFFSET	0x0058
-- 
cgit 


From 58b889206ea4ba75a57986e223da647f91ba1a19 Mon Sep 17 00:00:00 2001
From: Jon Mason <jon.mason@intel.com>
Date: Fri, 1 Nov 2013 15:08:19 -0700
Subject: NTB: Document HW errata

Add a comment describing the necessary ordering of modifications to the
NTB Limit and Base registers.

Signed-off-by: Jon Mason <jon.mason@intel.com>
---
 drivers/ntb/ntb_hw.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/ntb/ntb_hw.c b/drivers/ntb/ntb_hw.c
index fa97948e66ad..391c377a5d38 100644
--- a/drivers/ntb/ntb_hw.c
+++ b/drivers/ntb/ntb_hw.c
@@ -689,6 +689,12 @@ static int ntb_xeon_setup(struct ntb_device *ndev)
 			 */
 			writeq(ndev->mw[1].bar_sz + 0x1000, ndev->reg_base +
 			       SNB_PBAR4LMT_OFFSET);
+			/* HW errata on the Limit registers.  They can only be
+			 * written when the base register is 4GB aligned and
+			 * < 32bit.  This should already be the case based on the
+			 * driver defaults, but write the Limit registers first
+			 * just in case.
+			 */
 		} else {
 			ndev->limits.max_mw = SNB_MAX_MW;
 
@@ -707,6 +713,12 @@ static int ntb_xeon_setup(struct ntb_device *ndev)
 			 * something silly
 			 */
 			writeq(0, ndev->reg_base + SNB_PBAR4LMT_OFFSET);
+			/* HW errata on the Limit registers.  They can only be
+			 * written when the base register is 4GB aligned and
+			 * < 32bit.  This should already be the case based on the
+			 * driver defaults, but write the Limit registers first
+			 * just in case.
+			 */
 		}
 
 		/* The Xeon errata workaround requires setting SBAR Base
-- 
cgit 


From 78958433db077b339f3a039890148561086574e4 Mon Sep 17 00:00:00 2001
From: Jon Mason <jon.mason@intel.com>
Date: Thu, 3 Oct 2013 17:24:03 -0700
Subject: NTB: Enable Snoop on Primary Side

Enable Snoop from Primary to Secondary side on BAR23 and BAR45 on all
TLPs.  Previously, Snoop was only enabled from Secondary to Primary
side.  This can have a performance improvement on some workloads.

Also, make the code more obvious about how the link is being enabled.

Signed-off-by: Jon Mason <jon.mason@intel.com>
---
 drivers/ntb/ntb_hw.c   | 17 ++++++++++++-----
 drivers/ntb/ntb_regs.h | 12 +++++++-----
 2 files changed, 19 insertions(+), 10 deletions(-)

diff --git a/drivers/ntb/ntb_hw.c b/drivers/ntb/ntb_hw.c
index 391c377a5d38..80505aeecf9e 100644
--- a/drivers/ntb/ntb_hw.c
+++ b/drivers/ntb/ntb_hw.c
@@ -1316,10 +1316,16 @@ static void ntb_hw_link_up(struct ntb_device *ndev)
 {
 	if (ndev->conn_type == NTB_CONN_TRANSPARENT)
 		ntb_link_event(ndev, NTB_LINK_UP);
-	else
+	else {
+		u32 ntb_cntl;
+
 		/* Let's bring the NTB link up */
-		writel(NTB_CNTL_BAR23_SNOOP | NTB_CNTL_BAR45_SNOOP,
-		       ndev->reg_ofs.lnk_cntl);
+		ntb_cntl = readl(ndev->reg_ofs.lnk_cntl);
+		ntb_cntl &= ~(NTB_CNTL_LINK_DISABLE | NTB_CNTL_CFG_LOCK);
+		ntb_cntl |= NTB_CNTL_P2S_BAR23_SNOOP | NTB_CNTL_S2P_BAR23_SNOOP;
+		ntb_cntl |= NTB_CNTL_P2S_BAR45_SNOOP | NTB_CNTL_S2P_BAR45_SNOOP;
+		writel(ntb_cntl, ndev->reg_ofs.lnk_cntl);
+	}
 }
 
 static void ntb_hw_link_down(struct ntb_device *ndev)
@@ -1333,8 +1339,9 @@ static void ntb_hw_link_down(struct ntb_device *ndev)
 
 	/* Bring NTB link down */
 	ntb_cntl = readl(ndev->reg_ofs.lnk_cntl);
-	ntb_cntl &= ~(NTB_CNTL_BAR23_SNOOP | NTB_CNTL_BAR45_SNOOP);
-	ntb_cntl |= NTB_CNTL_LINK_DISABLE;
+	ntb_cntl &= ~(NTB_CNTL_P2S_BAR23_SNOOP | NTB_CNTL_S2P_BAR23_SNOOP);
+	ntb_cntl &= ~(NTB_CNTL_P2S_BAR45_SNOOP | NTB_CNTL_S2P_BAR45_SNOOP);
+	ntb_cntl |= NTB_CNTL_LINK_DISABLE | NTB_CNTL_CFG_LOCK;
 	writel(ntb_cntl, ndev->reg_ofs.lnk_cntl);
 }
 
diff --git a/drivers/ntb/ntb_regs.h b/drivers/ntb/ntb_regs.h
index a689f1ca630f..9774506419d7 100644
--- a/drivers/ntb/ntb_regs.h
+++ b/drivers/ntb/ntb_regs.h
@@ -143,11 +143,13 @@
 #define BWD_LTSSMSTATEJMP_FORCEDETECT	(1 << 2)
 #define BWD_IBIST_ERR_OFLOW	0x7FFF7FFF
 
-#define NTB_CNTL_CFG_LOCK	(1 << 0)
-#define NTB_CNTL_LINK_DISABLE	(1 << 1)
-#define NTB_CNTL_BAR23_SNOOP	(1 << 2)
-#define NTB_CNTL_BAR45_SNOOP	(1 << 6)
-#define BWD_CNTL_LINK_DOWN	(1 << 16)
+#define NTB_CNTL_CFG_LOCK		(1 << 0)
+#define NTB_CNTL_LINK_DISABLE		(1 << 1)
+#define NTB_CNTL_S2P_BAR23_SNOOP	(1 << 2)
+#define NTB_CNTL_P2S_BAR23_SNOOP	(1 << 4)
+#define NTB_CNTL_S2P_BAR45_SNOOP	(1 << 6)
+#define NTB_CNTL_P2S_BAR45_SNOOP	(1 << 8)
+#define BWD_CNTL_LINK_DOWN		(1 << 16)
 
 #define NTB_PPD_OFFSET		0x00D4
 #define SNB_PPD_CONN_TYPE	0x0003
-- 
cgit 


From e8aeb60c389c2aa48d345bcf717f8cb7edf67680 Mon Sep 17 00:00:00 2001
From: Jon Mason <jon.mason@intel.com>
Date: Thu, 18 Apr 2013 17:59:44 -0700
Subject: NTB: Disable interrupts and poll under high load

Disable interrupts and poll under high load

Signed-off-by: Jon Mason <jon.mason@intel.com>
---
 drivers/ntb/ntb_hw.c        | 42 +++++++++++++++++++++++++++++++++++++-----
 drivers/ntb/ntb_hw.h        |  7 ++++---
 drivers/ntb/ntb_transport.c | 25 +++++++------------------
 3 files changed, 48 insertions(+), 26 deletions(-)

diff --git a/drivers/ntb/ntb_hw.c b/drivers/ntb/ntb_hw.c
index 80505aeecf9e..170e8e60cdb7 100644
--- a/drivers/ntb/ntb_hw.c
+++ b/drivers/ntb/ntb_hw.c
@@ -141,6 +141,24 @@ void ntb_unregister_event_callback(struct ntb_device *ndev)
 	ndev->event_cb = NULL;
 }
 
+static void ntb_irq_work(unsigned long data)
+{
+	struct ntb_db_cb *db_cb = (struct ntb_db_cb *)data;
+	int rc;
+
+	rc = db_cb->callback(db_cb->data, db_cb->db_num);
+	if (rc)
+		tasklet_schedule(&db_cb->irq_work);
+	else {
+		struct ntb_device *ndev = db_cb->ndev;
+		unsigned long mask;
+
+		mask = readw(ndev->reg_ofs.ldb_mask);
+		clear_bit(db_cb->db_num * ndev->bits_per_vector, &mask);
+		writew(mask, ndev->reg_ofs.ldb_mask);
+	}
+}
+
 /**
  * ntb_register_db_callback() - register a callback for doorbell interrupt
  * @ndev: pointer to ntb_device instance
@@ -155,7 +173,7 @@ void ntb_unregister_event_callback(struct ntb_device *ndev)
  * RETURNS: An appropriate -ERRNO error value on error, or zero for success.
  */
 int ntb_register_db_callback(struct ntb_device *ndev, unsigned int idx,
-			     void *data, void (*func)(void *data, int db_num))
+			     void *data, int (*func)(void *data, int db_num))
 {
 	unsigned long mask;
 
@@ -166,6 +184,10 @@ int ntb_register_db_callback(struct ntb_device *ndev, unsigned int idx,
 
 	ndev->db_cb[idx].callback = func;
 	ndev->db_cb[idx].data = data;
+	ndev->db_cb[idx].ndev = ndev;
+
+	tasklet_init(&ndev->db_cb[idx].irq_work, ntb_irq_work,
+		     (unsigned long) &ndev->db_cb[idx]);
 
 	/* unmask interrupt */
 	mask = readw(ndev->reg_ofs.ldb_mask);
@@ -194,6 +216,8 @@ void ntb_unregister_db_callback(struct ntb_device *ndev, unsigned int idx)
 	set_bit(idx * ndev->bits_per_vector, &mask);
 	writew(mask, ndev->reg_ofs.ldb_mask);
 
+	tasklet_disable(&ndev->db_cb[idx].irq_work);
+
 	ndev->db_cb[idx].callback = NULL;
 }
 
@@ -955,12 +979,16 @@ static irqreturn_t bwd_callback_msix_irq(int irq, void *data)
 {
 	struct ntb_db_cb *db_cb = data;
 	struct ntb_device *ndev = db_cb->ndev;
+	unsigned long mask;
 
 	dev_dbg(&ndev->pdev->dev, "MSI-X irq %d received for DB %d\n", irq,
 		db_cb->db_num);
 
-	if (db_cb->callback)
-		db_cb->callback(db_cb->data, db_cb->db_num);
+	mask = readw(ndev->reg_ofs.ldb_mask);
+	set_bit(db_cb->db_num * ndev->bits_per_vector, &mask);
+	writew(mask, ndev->reg_ofs.ldb_mask);
+
+	tasklet_schedule(&db_cb->irq_work);
 
 	/* No need to check for the specific HB irq, any interrupt means
 	 * we're connected.
@@ -976,12 +1004,16 @@ static irqreturn_t xeon_callback_msix_irq(int irq, void *data)
 {
 	struct ntb_db_cb *db_cb = data;
 	struct ntb_device *ndev = db_cb->ndev;
+	unsigned long mask;
 
 	dev_dbg(&ndev->pdev->dev, "MSI-X irq %d received for DB %d\n", irq,
 		db_cb->db_num);
 
-	if (db_cb->callback)
-		db_cb->callback(db_cb->data, db_cb->db_num);
+	mask = readw(ndev->reg_ofs.ldb_mask);
+	set_bit(db_cb->db_num * ndev->bits_per_vector, &mask);
+	writew(mask, ndev->reg_ofs.ldb_mask);
+
+	tasklet_schedule(&db_cb->irq_work);
 
 	/* On Sandybridge, there are 16 bits in the interrupt register
 	 * but only 4 vectors.  So, 5 bits are assigned to the first 3
diff --git a/drivers/ntb/ntb_hw.h b/drivers/ntb/ntb_hw.h
index 0a31cedae7d4..bbdb7edca10c 100644
--- a/drivers/ntb/ntb_hw.h
+++ b/drivers/ntb/ntb_hw.h
@@ -106,10 +106,11 @@ struct ntb_mw {
 };
 
 struct ntb_db_cb {
-	void (*callback) (void *data, int db_num);
+	int (*callback)(void *data, int db_num);
 	unsigned int db_num;
 	void *data;
 	struct ntb_device *ndev;
+	struct tasklet_struct irq_work;
 };
 
 struct ntb_device {
@@ -228,8 +229,8 @@ struct ntb_device *ntb_register_transport(struct pci_dev *pdev,
 void ntb_unregister_transport(struct ntb_device *ndev);
 void ntb_set_mw_addr(struct ntb_device *ndev, unsigned int mw, u64 addr);
 int ntb_register_db_callback(struct ntb_device *ndev, unsigned int idx,
-			     void *data, void (*db_cb_func) (void *data,
-							     int db_num));
+			     void *data, int (*db_cb_func)(void *data,
+							   int db_num));
 void ntb_unregister_db_callback(struct ntb_device *ndev, unsigned int idx);
 int ntb_register_event_callback(struct ntb_device *ndev,
 				void (*event_cb_func) (void *handle,
diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index 172501d47600..676937bd679c 100644
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -119,7 +119,6 @@ struct ntb_transport_qp {
 
 	void (*rx_handler) (struct ntb_transport_qp *qp, void *qp_data,
 			    void *data, int len);
-	struct tasklet_struct rx_work;
 	struct list_head rx_pend_q;
 	struct list_head rx_free_q;
 	spinlock_t ntb_rx_pend_q_lock;
@@ -1188,11 +1187,14 @@ err:
 	goto out;
 }
 
-static void ntb_transport_rx(unsigned long data)
+static int ntb_transport_rxc_db(void *data, int db_num)
 {
-	struct ntb_transport_qp *qp = (struct ntb_transport_qp *)data;
+	struct ntb_transport_qp *qp = data;
 	int rc, i;
 
+	dev_dbg(&ntb_query_pdev(qp->ndev)->dev, "%s: doorbell %d received\n",
+		__func__, db_num);
+
 	/* Limit the number of packets processed in a single interrupt to
 	 * provide fairness to others
 	 */
@@ -1204,16 +1206,8 @@ static void ntb_transport_rx(unsigned long data)
 
 	if (qp->dma_chan)
 		dma_async_issue_pending(qp->dma_chan);
-}
-
-static void ntb_transport_rxc_db(void *data, int db_num)
-{
-	struct ntb_transport_qp *qp = data;
 
-	dev_dbg(&ntb_query_pdev(qp->ndev)->dev, "%s: doorbell %d received\n",
-		__func__, db_num);
-
-	tasklet_schedule(&qp->rx_work);
+	return i;
 }
 
 static void ntb_tx_copy_callback(void *data)
@@ -1446,19 +1440,15 @@ ntb_transport_create_queue(void *data, struct pci_dev *pdev,
 			     &qp->tx_free_q);
 	}
 
-	tasklet_init(&qp->rx_work, ntb_transport_rx, (unsigned long) qp);
-
 	rc = ntb_register_db_callback(qp->ndev, free_queue, qp,
 				      ntb_transport_rxc_db);
 	if (rc)
-		goto err3;
+		goto err2;
 
 	dev_info(&pdev->dev, "NTB Transport QP %d created\n", qp->qp_num);
 
 	return qp;
 
-err3:
-	tasklet_disable(&qp->rx_work);
 err2:
 	while ((entry = ntb_list_rm(&qp->ntb_tx_free_q_lock, &qp->tx_free_q)))
 		kfree(entry);
@@ -1505,7 +1495,6 @@ void ntb_transport_free_queue(struct ntb_transport_qp *qp)
 	}
 
 	ntb_unregister_db_callback(qp->ndev, qp->qp_num);
-	tasklet_disable(&qp->rx_work);
 
 	cancel_delayed_work_sync(&qp->link_work);
 
-- 
cgit 


From 125d0119d158180eb38580adfbc1a83d56120709 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Tue, 19 Nov 2013 09:07:46 +0100
Subject: target core: rename (ex,im)plict -> (ex,im)plicit

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/target_core_alua.c      | 110 ++++++++++++++++-----------------
 drivers/target/target_core_alua.h      |  20 +++---
 drivers/target/target_core_configfs.c  |  26 ++++----
 drivers/target/target_core_device.c    |   6 +-
 drivers/target/target_core_file.c      |   2 +-
 drivers/target/target_core_pr.c        |  24 +++----
 drivers/target/target_core_spc.c       |   6 +-
 drivers/target/target_core_transport.c |   4 +-
 drivers/target/target_core_ua.h        |   2 +-
 include/target/target_core_base.h      |   2 +-
 10 files changed, 101 insertions(+), 101 deletions(-)

diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index 47244102281e..8297d3796d8c 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -44,7 +44,7 @@
 static sense_reason_t core_alua_check_transition(int state, int *primary);
 static int core_alua_set_tg_pt_secondary_state(
 		struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem,
-		struct se_port *port, int explict, int offline);
+		struct se_port *port, int explicit, int offline);
 
 static u16 alua_lu_gps_counter;
 static u32 alua_lu_gps_count;
@@ -175,7 +175,7 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd)
 	if (ext_hdr != 0) {
 		buf[4] = 0x10;
 		/*
-		 * Set the implict transition time (in seconds) for the application
+		 * Set the implicit transition time (in seconds) for the application
 		 * client to use as a base for it's transition timeout value.
 		 *
 		 * Use the current tg_pt_gp_mem -> tg_pt_gp membership from the LUN
@@ -188,7 +188,7 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd)
 			spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
 			tg_pt_gp = tg_pt_gp_mem->tg_pt_gp;
 			if (tg_pt_gp)
-				buf[5] = tg_pt_gp->tg_pt_gp_implict_trans_secs;
+				buf[5] = tg_pt_gp->tg_pt_gp_implicit_trans_secs;
 			spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
 		}
 	}
@@ -199,7 +199,7 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd)
 }
 
 /*
- * SET_TARGET_PORT_GROUPS for explict ALUA operation.
+ * SET_TARGET_PORT_GROUPS for explicit ALUA operation.
  *
  * See spc4r17 section 6.35
  */
@@ -232,7 +232,7 @@ target_emulate_set_target_port_groups(struct se_cmd *cmd)
 		return TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
 
 	/*
-	 * Determine if explict ALUA via SET_TARGET_PORT_GROUPS is allowed
+	 * Determine if explicit ALUA via SET_TARGET_PORT_GROUPS is allowed
 	 * for the local tg_pt_gp.
 	 */
 	l_tg_pt_gp_mem = l_port->sep_alua_tg_pt_gp_mem;
@@ -251,9 +251,9 @@ target_emulate_set_target_port_groups(struct se_cmd *cmd)
 	}
 	spin_unlock(&l_tg_pt_gp_mem->tg_pt_gp_mem_lock);
 
-	if (!(l_tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICT_ALUA)) {
+	if (!(l_tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICIT_ALUA)) {
 		pr_debug("Unable to process SET_TARGET_PORT_GROUPS"
-				" while TPGS_EXPLICT_ALUA is disabled\n");
+				" while TPGS_EXPLICIT_ALUA is disabled\n");
 		rc = TCM_UNSUPPORTED_SCSI_OPCODE;
 		goto out;
 	}
@@ -620,7 +620,7 @@ out:
 }
 
 /*
- * Check implict and explict ALUA state change request.
+ * Check implicit and explicit ALUA state change request.
  */
 static sense_reason_t
 core_alua_check_transition(int state, int *primary)
@@ -676,10 +676,10 @@ char *core_alua_dump_status(int status)
 	switch (status) {
 	case ALUA_STATUS_NONE:
 		return "None";
-	case ALUA_STATUS_ALTERED_BY_EXPLICT_STPG:
-		return "Altered by Explict STPG";
-	case ALUA_STATUS_ALTERED_BY_IMPLICT_ALUA:
-		return "Altered by Implict ALUA";
+	case ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG:
+		return "Altered by Explicit STPG";
+	case ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA:
+		return "Altered by Implicit ALUA";
 	default:
 		return "Unknown";
 	}
@@ -770,7 +770,7 @@ static int core_alua_do_transition_tg_pt(
 	struct se_node_acl *nacl,
 	unsigned char *md_buf,
 	int new_state,
-	int explict)
+	int explicit)
 {
 	struct se_dev_entry *se_deve;
 	struct se_lun_acl *lacl;
@@ -784,9 +784,9 @@ static int core_alua_do_transition_tg_pt(
 	old_state = atomic_read(&tg_pt_gp->tg_pt_gp_alua_access_state);
 	atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state,
 			ALUA_ACCESS_STATE_TRANSITION);
-	tg_pt_gp->tg_pt_gp_alua_access_status = (explict) ?
-				ALUA_STATUS_ALTERED_BY_EXPLICT_STPG :
-				ALUA_STATUS_ALTERED_BY_IMPLICT_ALUA;
+	tg_pt_gp->tg_pt_gp_alua_access_status = (explicit) ?
+				ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG :
+				ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA;
 	/*
 	 * Check for the optional ALUA primary state transition delay
 	 */
@@ -821,12 +821,12 @@ static int core_alua_do_transition_tg_pt(
 			lacl = se_deve->se_lun_acl;
 			/*
 			 * se_deve->se_lun_acl pointer may be NULL for a
-			 * entry created without explict Node+MappedLUN ACLs
+			 * entry created without explicit Node+MappedLUN ACLs
 			 */
 			if (!lacl)
 				continue;
 
-			if (explict &&
+			if (explicit &&
 			   (nacl != NULL) && (nacl == lacl->se_lun_nacl) &&
 			   (l_port != NULL) && (l_port == port))
 				continue;
@@ -866,8 +866,8 @@ static int core_alua_do_transition_tg_pt(
 	atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state, new_state);
 
 	pr_debug("Successful %s ALUA transition TG PT Group: %s ID: %hu"
-		" from primary access state %s to %s\n", (explict) ? "explict" :
-		"implict", config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item),
+		" from primary access state %s to %s\n", (explicit) ? "explicit" :
+		"implicit", config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item),
 		tg_pt_gp->tg_pt_gp_id, core_alua_dump_state(old_state),
 		core_alua_dump_state(new_state));
 
@@ -880,7 +880,7 @@ int core_alua_do_port_transition(
 	struct se_port *l_port,
 	struct se_node_acl *l_nacl,
 	int new_state,
-	int explict)
+	int explicit)
 {
 	struct se_device *dev;
 	struct se_port *port;
@@ -917,7 +917,7 @@ int core_alua_do_port_transition(
 		 * success.
 		 */
 		core_alua_do_transition_tg_pt(l_tg_pt_gp, l_port, l_nacl,
-					md_buf, new_state, explict);
+					md_buf, new_state, explicit);
 		atomic_dec(&lu_gp->lu_gp_ref_cnt);
 		smp_mb__after_atomic_dec();
 		kfree(md_buf);
@@ -970,7 +970,7 @@ int core_alua_do_port_transition(
 			 * success.
 			 */
 			core_alua_do_transition_tg_pt(tg_pt_gp, port,
-					nacl, md_buf, new_state, explict);
+					nacl, md_buf, new_state, explicit);
 
 			spin_lock(&dev->t10_alua.tg_pt_gps_lock);
 			atomic_dec(&tg_pt_gp->tg_pt_gp_ref_cnt);
@@ -987,7 +987,7 @@ int core_alua_do_port_transition(
 	pr_debug("Successfully processed LU Group: %s all ALUA TG PT"
 		" Group IDs: %hu %s transition to primary state: %s\n",
 		config_item_name(&lu_gp->lu_gp_group.cg_item),
-		l_tg_pt_gp->tg_pt_gp_id, (explict) ? "explict" : "implict",
+		l_tg_pt_gp->tg_pt_gp_id, (explicit) ? "explicit" : "implicit",
 		core_alua_dump_state(new_state));
 
 	atomic_dec(&lu_gp->lu_gp_ref_cnt);
@@ -1034,7 +1034,7 @@ static int core_alua_update_tpg_secondary_metadata(
 static int core_alua_set_tg_pt_secondary_state(
 	struct t10_alua_tg_pt_gp_member *tg_pt_gp_mem,
 	struct se_port *port,
-	int explict,
+	int explicit,
 	int offline)
 {
 	struct t10_alua_tg_pt_gp *tg_pt_gp;
@@ -1061,13 +1061,13 @@ static int core_alua_set_tg_pt_secondary_state(
 		atomic_set(&port->sep_tg_pt_secondary_offline, 0);
 
 	md_buf_len = tg_pt_gp->tg_pt_gp_md_buf_len;
-	port->sep_tg_pt_secondary_stat = (explict) ?
-			ALUA_STATUS_ALTERED_BY_EXPLICT_STPG :
-			ALUA_STATUS_ALTERED_BY_IMPLICT_ALUA;
+	port->sep_tg_pt_secondary_stat = (explicit) ?
+			ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG :
+			ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA;
 
 	pr_debug("Successful %s ALUA transition TG PT Group: %s ID: %hu"
-		" to secondary access state: %s\n", (explict) ? "explict" :
-		"implict", config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item),
+		" to secondary access state: %s\n", (explicit) ? "explicit" :
+		"implicit", config_item_name(&tg_pt_gp->tg_pt_gp_group.cg_item),
 		tg_pt_gp->tg_pt_gp_id, (offline) ? "OFFLINE" : "ONLINE");
 
 	spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
@@ -1356,16 +1356,16 @@ struct t10_alua_tg_pt_gp *core_alua_allocate_tg_pt_gp(struct se_device *dev,
 	atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state,
 		ALUA_ACCESS_STATE_ACTIVE_OPTMIZED);
 	/*
-	 * Enable both explict and implict ALUA support by default
+	 * Enable both explicit and implicit ALUA support by default
 	 */
 	tg_pt_gp->tg_pt_gp_alua_access_type =
-			TPGS_EXPLICT_ALUA | TPGS_IMPLICT_ALUA;
+			TPGS_EXPLICIT_ALUA | TPGS_IMPLICIT_ALUA;
 	/*
 	 * Set the default Active/NonOptimized Delay in milliseconds
 	 */
 	tg_pt_gp->tg_pt_gp_nonop_delay_msecs = ALUA_DEFAULT_NONOP_DELAY_MSECS;
 	tg_pt_gp->tg_pt_gp_trans_delay_msecs = ALUA_DEFAULT_TRANS_DELAY_MSECS;
-	tg_pt_gp->tg_pt_gp_implict_trans_secs = ALUA_DEFAULT_IMPLICT_TRANS_SECS;
+	tg_pt_gp->tg_pt_gp_implicit_trans_secs = ALUA_DEFAULT_IMPLICIT_TRANS_SECS;
 
 	if (def_group) {
 		spin_lock(&dev->t10_alua.tg_pt_gps_lock);
@@ -1465,7 +1465,7 @@ void core_alua_free_tg_pt_gp(
 	 * been called from target_core_alua_drop_tg_pt_gp().
 	 *
 	 * Here we remove *tg_pt_gp from the global list so that
-	 * no assications *OR* explict ALUA via SET_TARGET_PORT_GROUPS
+	 * no assications *OR* explicit ALUA via SET_TARGET_PORT_GROUPS
 	 * can be made while we are releasing struct t10_alua_tg_pt_gp.
 	 */
 	spin_lock(&dev->t10_alua.tg_pt_gps_lock);
@@ -1740,13 +1740,13 @@ ssize_t core_alua_show_access_type(
 	struct t10_alua_tg_pt_gp *tg_pt_gp,
 	char *page)
 {
-	if ((tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICT_ALUA) &&
-	    (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICT_ALUA))
-		return sprintf(page, "Implict and Explict\n");
-	else if (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICT_ALUA)
-		return sprintf(page, "Implict\n");
-	else if (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICT_ALUA)
-		return sprintf(page, "Explict\n");
+	if ((tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICIT_ALUA) &&
+	    (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICIT_ALUA))
+		return sprintf(page, "Implicit and Explicit\n");
+	else if (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICIT_ALUA)
+		return sprintf(page, "Implicit\n");
+	else if (tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_EXPLICIT_ALUA)
+		return sprintf(page, "Explicit\n");
 	else
 		return sprintf(page, "None\n");
 }
@@ -1771,11 +1771,11 @@ ssize_t core_alua_store_access_type(
 	}
 	if (tmp == 3)
 		tg_pt_gp->tg_pt_gp_alua_access_type =
-			TPGS_IMPLICT_ALUA | TPGS_EXPLICT_ALUA;
+			TPGS_IMPLICIT_ALUA | TPGS_EXPLICIT_ALUA;
 	else if (tmp == 2)
-		tg_pt_gp->tg_pt_gp_alua_access_type = TPGS_EXPLICT_ALUA;
+		tg_pt_gp->tg_pt_gp_alua_access_type = TPGS_EXPLICIT_ALUA;
 	else if (tmp == 1)
-		tg_pt_gp->tg_pt_gp_alua_access_type = TPGS_IMPLICT_ALUA;
+		tg_pt_gp->tg_pt_gp_alua_access_type = TPGS_IMPLICIT_ALUA;
 	else
 		tg_pt_gp->tg_pt_gp_alua_access_type = 0;
 
@@ -1844,14 +1844,14 @@ ssize_t core_alua_store_trans_delay_msecs(
 	return count;
 }
 
-ssize_t core_alua_show_implict_trans_secs(
+ssize_t core_alua_show_implicit_trans_secs(
 	struct t10_alua_tg_pt_gp *tg_pt_gp,
 	char *page)
 {
-	return sprintf(page, "%d\n", tg_pt_gp->tg_pt_gp_implict_trans_secs);
+	return sprintf(page, "%d\n", tg_pt_gp->tg_pt_gp_implicit_trans_secs);
 }
 
-ssize_t core_alua_store_implict_trans_secs(
+ssize_t core_alua_store_implicit_trans_secs(
 	struct t10_alua_tg_pt_gp *tg_pt_gp,
 	const char *page,
 	size_t count)
@@ -1861,16 +1861,16 @@ ssize_t core_alua_store_implict_trans_secs(
 
 	ret = kstrtoul(page, 0, &tmp);
 	if (ret < 0) {
-		pr_err("Unable to extract implict_trans_secs\n");
+		pr_err("Unable to extract implicit_trans_secs\n");
 		return ret;
 	}
-	if (tmp > ALUA_MAX_IMPLICT_TRANS_SECS) {
-		pr_err("Passed implict_trans_secs: %lu, exceeds"
-			" ALUA_MAX_IMPLICT_TRANS_SECS: %d\n", tmp,
-			ALUA_MAX_IMPLICT_TRANS_SECS);
+	if (tmp > ALUA_MAX_IMPLICIT_TRANS_SECS) {
+		pr_err("Passed implicit_trans_secs: %lu, exceeds"
+			" ALUA_MAX_IMPLICIT_TRANS_SECS: %d\n", tmp,
+			ALUA_MAX_IMPLICIT_TRANS_SECS);
 		return  -EINVAL;
 	}
-	tg_pt_gp->tg_pt_gp_implict_trans_secs = (int)tmp;
+	tg_pt_gp->tg_pt_gp_implicit_trans_secs = (int)tmp;
 
 	return count;
 }
@@ -1970,8 +1970,8 @@ ssize_t core_alua_store_secondary_status(
 		return ret;
 	}
 	if ((tmp != ALUA_STATUS_NONE) &&
-	    (tmp != ALUA_STATUS_ALTERED_BY_EXPLICT_STPG) &&
-	    (tmp != ALUA_STATUS_ALTERED_BY_IMPLICT_ALUA)) {
+	    (tmp != ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG) &&
+	    (tmp != ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA)) {
 		pr_err("Illegal value for alua_tg_pt_status: %lu\n",
 				tmp);
 		return -EINVAL;
diff --git a/drivers/target/target_core_alua.h b/drivers/target/target_core_alua.h
index e539c3e7f4ad..74cf0c0581e6 100644
--- a/drivers/target/target_core_alua.h
+++ b/drivers/target/target_core_alua.h
@@ -7,8 +7,8 @@
  * from spc4r17 section 6.4.2 Table 135
  */
 #define TPGS_NO_ALUA				0x00
-#define TPGS_IMPLICT_ALUA			0x10
-#define TPGS_EXPLICT_ALUA			0x20
+#define TPGS_IMPLICIT_ALUA			0x10
+#define TPGS_EXPLICIT_ALUA			0x20
 
 /*
  * ASYMMETRIC ACCESS STATE field
@@ -28,8 +28,8 @@
  * from spc4r17 section 6.27 Table 246
  */
 #define ALUA_STATUS_NONE				0x00
-#define ALUA_STATUS_ALTERED_BY_EXPLICT_STPG		0x01
-#define ALUA_STATUS_ALTERED_BY_IMPLICT_ALUA		0x02
+#define ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG		0x01
+#define ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA		0x02
 
 /*
  * From spc4r17, Table D.1: ASC and ASCQ Assignement
@@ -46,17 +46,17 @@
 #define ALUA_DEFAULT_NONOP_DELAY_MSECS			100
 #define ALUA_MAX_NONOP_DELAY_MSECS			10000 /* 10 seconds */
 /*
- * Used for implict and explict ALUA transitional delay, that is disabled
+ * Used for implicit and explicit ALUA transitional delay, that is disabled
  * by default, and is intended to be used for debugging client side ALUA code.
  */
 #define ALUA_DEFAULT_TRANS_DELAY_MSECS			0
 #define ALUA_MAX_TRANS_DELAY_MSECS			30000 /* 30 seconds */
 /*
- * Used for the recommended application client implict transition timeout
+ * Used for the recommended application client implicit transition timeout
  * in seconds, returned by the REPORT_TARGET_PORT_GROUPS w/ extended header.
  */
-#define ALUA_DEFAULT_IMPLICT_TRANS_SECS			0
-#define ALUA_MAX_IMPLICT_TRANS_SECS			255
+#define ALUA_DEFAULT_IMPLICIT_TRANS_SECS			0
+#define ALUA_MAX_IMPLICIT_TRANS_SECS			255
 /*
  * Used by core_alua_update_tpg_primary_metadata() and
  * core_alua_update_tpg_secondary_metadata()
@@ -113,9 +113,9 @@ extern ssize_t core_alua_show_trans_delay_msecs(struct t10_alua_tg_pt_gp *,
 					char *);
 extern ssize_t core_alua_store_trans_delay_msecs(struct t10_alua_tg_pt_gp *,
 					const char *, size_t);
-extern ssize_t core_alua_show_implict_trans_secs(struct t10_alua_tg_pt_gp *,
+extern ssize_t core_alua_show_implicit_trans_secs(struct t10_alua_tg_pt_gp *,
 					char *);
-extern ssize_t core_alua_store_implict_trans_secs(struct t10_alua_tg_pt_gp *,
+extern ssize_t core_alua_store_implicit_trans_secs(struct t10_alua_tg_pt_gp *,
 					const char *, size_t);
 extern ssize_t core_alua_show_preferred_bit(struct t10_alua_tg_pt_gp *,
 					char *);
diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index b04edc12f9d5..3a964fbf50ee 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -2036,7 +2036,7 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_state(
 	int new_state, ret;
 
 	if (!tg_pt_gp->tg_pt_gp_valid_id) {
-		pr_err("Unable to do implict ALUA on non valid"
+		pr_err("Unable to do implicit ALUA on non valid"
 			" tg_pt_gp ID: %hu\n", tg_pt_gp->tg_pt_gp_valid_id);
 		return -EINVAL;
 	}
@@ -2049,9 +2049,9 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_state(
 	}
 	new_state = (int)tmp;
 
-	if (!(tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICT_ALUA)) {
-		pr_err("Unable to process implict configfs ALUA"
-			" transition while TPGS_IMPLICT_ALUA is disabled\n");
+	if (!(tg_pt_gp->tg_pt_gp_alua_access_type & TPGS_IMPLICIT_ALUA)) {
+		pr_err("Unable to process implicit configfs ALUA"
+			" transition while TPGS_IMPLICIT_ALUA is disabled\n");
 		return -EINVAL;
 	}
 
@@ -2097,8 +2097,8 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_status(
 	new_status = (int)tmp;
 
 	if ((new_status != ALUA_STATUS_NONE) &&
-	    (new_status != ALUA_STATUS_ALTERED_BY_EXPLICT_STPG) &&
-	    (new_status != ALUA_STATUS_ALTERED_BY_IMPLICT_ALUA)) {
+	    (new_status != ALUA_STATUS_ALTERED_BY_EXPLICIT_STPG) &&
+	    (new_status != ALUA_STATUS_ALTERED_BY_IMPLICIT_ALUA)) {
 		pr_err("Illegal ALUA access status: 0x%02x\n",
 				new_status);
 		return -EINVAL;
@@ -2210,24 +2210,24 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_trans_delay_msecs(
 SE_DEV_ALUA_TG_PT_ATTR(trans_delay_msecs, S_IRUGO | S_IWUSR);
 
 /*
- * implict_trans_secs
+ * implicit_trans_secs
  */
-static ssize_t target_core_alua_tg_pt_gp_show_attr_implict_trans_secs(
+static ssize_t target_core_alua_tg_pt_gp_show_attr_implicit_trans_secs(
 	struct t10_alua_tg_pt_gp *tg_pt_gp,
 	char *page)
 {
-	return core_alua_show_implict_trans_secs(tg_pt_gp, page);
+	return core_alua_show_implicit_trans_secs(tg_pt_gp, page);
 }
 
-static ssize_t target_core_alua_tg_pt_gp_store_attr_implict_trans_secs(
+static ssize_t target_core_alua_tg_pt_gp_store_attr_implicit_trans_secs(
 	struct t10_alua_tg_pt_gp *tg_pt_gp,
 	const char *page,
 	size_t count)
 {
-	return core_alua_store_implict_trans_secs(tg_pt_gp, page, count);
+	return core_alua_store_implicit_trans_secs(tg_pt_gp, page, count);
 }
 
-SE_DEV_ALUA_TG_PT_ATTR(implict_trans_secs, S_IRUGO | S_IWUSR);
+SE_DEV_ALUA_TG_PT_ATTR(implicit_trans_secs, S_IRUGO | S_IWUSR);
 
 /*
  * preferred
@@ -2353,7 +2353,7 @@ static struct configfs_attribute *target_core_alua_tg_pt_gp_attrs[] = {
 	&target_core_alua_tg_pt_gp_alua_write_metadata.attr,
 	&target_core_alua_tg_pt_gp_nonop_delay_msecs.attr,
 	&target_core_alua_tg_pt_gp_trans_delay_msecs.attr,
-	&target_core_alua_tg_pt_gp_implict_trans_secs.attr,
+	&target_core_alua_tg_pt_gp_implicit_trans_secs.attr,
 	&target_core_alua_tg_pt_gp_preferred.attr,
 	&target_core_alua_tg_pt_gp_tg_pt_gp_id.attr,
 	&target_core_alua_tg_pt_gp_members.attr,
diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
index 986afd2ee3f6..207b340498a3 100644
--- a/drivers/target/target_core_device.c
+++ b/drivers/target/target_core_device.c
@@ -313,14 +313,14 @@ int core_enable_device_list_for_node(
 	deve = nacl->device_list[mapped_lun];
 
 	/*
-	 * Check if the call is handling demo mode -> explict LUN ACL
+	 * Check if the call is handling demo mode -> explicit LUN ACL
 	 * transition.  This transition must be for the same struct se_lun
 	 * + mapped_lun that was setup in demo mode..
 	 */
 	if (deve->lun_flags & TRANSPORT_LUNFLAGS_INITIATOR_ACCESS) {
 		if (deve->se_lun_acl != NULL) {
 			pr_err("struct se_dev_entry->se_lun_acl"
-			       " already set for demo mode -> explict"
+			       " already set for demo mode -> explicit"
 			       " LUN ACL transition\n");
 			spin_unlock_irq(&nacl->device_list_lock);
 			return -EINVAL;
@@ -328,7 +328,7 @@ int core_enable_device_list_for_node(
 		if (deve->se_lun != lun) {
 			pr_err("struct se_dev_entry->se_lun does"
 			       " match passed struct se_lun for demo mode"
-			       " -> explict LUN ACL transition\n");
+			       " -> explicit LUN ACL transition\n");
 			spin_unlock_irq(&nacl->device_list_lock);
 			return -EINVAL;
 		}
diff --git a/drivers/target/target_core_file.c b/drivers/target/target_core_file.c
index b662f89dedac..0e34cda3271e 100644
--- a/drivers/target/target_core_file.c
+++ b/drivers/target/target_core_file.c
@@ -562,7 +562,7 @@ fd_execute_rw(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
 	} else {
 		ret = fd_do_rw(cmd, sgl, sgl_nents, 1);
 		/*
-		 * Perform implict vfs_fsync_range() for fd_do_writev() ops
+		 * Perform implicit vfs_fsync_range() for fd_do_writev() ops
 		 * for SCSI WRITEs with Forced Unit Access (FUA) set.
 		 * Allow this to happen independent of WCE=0 setting.
 		 */
diff --git a/drivers/target/target_core_pr.c b/drivers/target/target_core_pr.c
index d1ae4c5c3ffd..2f5d77932c80 100644
--- a/drivers/target/target_core_pr.c
+++ b/drivers/target/target_core_pr.c
@@ -474,7 +474,7 @@ static int core_scsi3_pr_seq_non_holder(
 	 * statement.
 	 */
 	if (!ret && !other_cdb) {
-		pr_debug("Allowing explict CDB: 0x%02x for %s"
+		pr_debug("Allowing explicit CDB: 0x%02x for %s"
 			" reservation holder\n", cdb[0],
 			core_scsi3_pr_dump_type(pr_reg_type));
 
@@ -507,7 +507,7 @@ static int core_scsi3_pr_seq_non_holder(
 			 */
 
 			if (!registered_nexus) {
-				pr_debug("Allowing implict CDB: 0x%02x"
+				pr_debug("Allowing implicit CDB: 0x%02x"
 					" for %s reservation on unregistered"
 					" nexus\n", cdb[0],
 					core_scsi3_pr_dump_type(pr_reg_type));
@@ -522,7 +522,7 @@ static int core_scsi3_pr_seq_non_holder(
 			 * allow commands from registered nexuses.
 			 */
 
-			pr_debug("Allowing implict CDB: 0x%02x for %s"
+			pr_debug("Allowing implicit CDB: 0x%02x for %s"
 				" reservation\n", cdb[0],
 				core_scsi3_pr_dump_type(pr_reg_type));
 
@@ -683,7 +683,7 @@ static struct t10_pr_registration *__core_scsi3_alloc_registration(
 					alua_port_list) {
 			/*
 			 * This pointer will be NULL for demo mode MappedLUNs
-			 * that have not been make explict via a ConfigFS
+			 * that have not been make explicit via a ConfigFS
 			 * MappedLUN group for the SCSI Initiator Node ACL.
 			 */
 			if (!deve_tmp->se_lun_acl)
@@ -1158,7 +1158,7 @@ static void core_scsi3_put_pr_reg(struct t10_pr_registration *pr_reg)
 	smp_mb__after_atomic_dec();
 }
 
-static int core_scsi3_check_implict_release(
+static int core_scsi3_check_implicit_release(
 	struct se_device *dev,
 	struct t10_pr_registration *pr_reg)
 {
@@ -1174,7 +1174,7 @@ static int core_scsi3_check_implict_release(
 	}
 	if (pr_res_holder == pr_reg) {
 		/*
-		 * Perform an implict RELEASE if the registration that
+		 * Perform an implicit RELEASE if the registration that
 		 * is being released is holding the reservation.
 		 *
 		 * From spc4r17, section 5.7.11.1:
@@ -1192,7 +1192,7 @@ static int core_scsi3_check_implict_release(
 		 * For 'All Registrants' reservation types, all existing
 		 * registrations are still processed as reservation holders
 		 * in core_scsi3_pr_seq_non_holder() after the initial
-		 * reservation holder is implictly released here.
+		 * reservation holder is implicitly released here.
 		 */
 	} else if (pr_reg->pr_reg_all_tg_pt &&
 		  (!strcmp(pr_res_holder->pr_reg_nacl->initiatorname,
@@ -2125,7 +2125,7 @@ core_scsi3_emulate_pro_register(struct se_cmd *cmd, u64 res_key, u64 sa_res_key,
 		/*
 		 * sa_res_key=0 Unregister Reservation Key for registered I_T Nexus.
 		 */
-		pr_holder = core_scsi3_check_implict_release(
+		pr_holder = core_scsi3_check_implicit_release(
 				cmd->se_dev, pr_reg);
 		if (pr_holder < 0) {
 			ret = TCM_RESERVATION_CONFLICT;
@@ -2402,7 +2402,7 @@ static void __core_scsi3_complete_pro_release(
 	struct se_device *dev,
 	struct se_node_acl *se_nacl,
 	struct t10_pr_registration *pr_reg,
-	int explict)
+	int explicit)
 {
 	struct target_core_fabric_ops *tfo = se_nacl->se_tpg->se_tpg_tfo;
 	char i_buf[PR_REG_ISID_ID_LEN];
@@ -2416,7 +2416,7 @@ static void __core_scsi3_complete_pro_release(
 
 	pr_debug("SPC-3 PR [%s] Service Action: %s RELEASE cleared"
 		" reservation holder TYPE: %s ALL_TG_PT: %d\n",
-		tfo->get_fabric_name(), (explict) ? "explict" : "implict",
+		tfo->get_fabric_name(), (explicit) ? "explicit" : "implicit",
 		core_scsi3_pr_dump_type(pr_reg->pr_res_type),
 		(pr_reg->pr_reg_all_tg_pt) ? 1 : 0);
 	pr_debug("SPC-3 PR [%s] RELEASE Node: %s%s\n",
@@ -2692,7 +2692,7 @@ static void __core_scsi3_complete_pro_preempt(
 	memset(i_buf, 0, PR_REG_ISID_ID_LEN);
 	core_pr_dump_initiator_port(pr_reg, i_buf, PR_REG_ISID_ID_LEN);
 	/*
-	 * Do an implict RELEASE of the existing reservation.
+	 * Do an implicit RELEASE of the existing reservation.
 	 */
 	if (dev->dev_pr_res_holder)
 		__core_scsi3_complete_pro_release(dev, nacl,
@@ -2845,7 +2845,7 @@ core_scsi3_pro_preempt(struct se_cmd *cmd, int type, int scope, u64 res_key,
 				 * 5.7.11.4 Preempting, Table 52 and Figure 7.
 				 *
 				 * For a ZERO SA Reservation key, release
-				 * all other registrations and do an implict
+				 * all other registrations and do an implicit
 				 * release of active persistent reservation.
 				 *
 				 * For a non-ZERO SA Reservation key, only
diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c
index f89a86f29ee3..021c3f4a4f00 100644
--- a/drivers/target/target_core_spc.c
+++ b/drivers/target/target_core_spc.c
@@ -48,7 +48,7 @@ static void spc_fill_alua_data(struct se_port *port, unsigned char *buf)
 	buf[5]	= 0x80;
 
 	/*
-	 * Set TPGS field for explict and/or implict ALUA access type
+	 * Set TPGS field for explicit and/or implicit ALUA access type
 	 * and opteration.
 	 *
 	 * See spc4r17 section 6.4.2 Table 135
@@ -1257,7 +1257,7 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size)
 		*size = (cdb[3] << 8) + cdb[4];
 
 		/*
-		 * Do implict HEAD_OF_QUEUE processing for INQUIRY.
+		 * Do implicit HEAD_OF_QUEUE processing for INQUIRY.
 		 * See spc4r17 section 5.3
 		 */
 		cmd->sam_task_attr = MSG_HEAD_TAG;
@@ -1291,7 +1291,7 @@ spc_parse_cdb(struct se_cmd *cmd, unsigned int *size)
 		cmd->execute_cmd = spc_emulate_report_luns;
 		*size = (cdb[6] << 24) | (cdb[7] << 16) | (cdb[8] << 8) | cdb[9];
 		/*
-		 * Do implict HEAD_OF_QUEUE processing for REPORT_LUNS
+		 * Do implicit HEAD_OF_QUEUE processing for REPORT_LUNS
 		 * See spc4r17 section 5.3
 		 */
 		cmd->sam_task_attr = MSG_HEAD_TAG;
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 46d82295fac9..269a7987dab9 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -462,7 +462,7 @@ void transport_deregister_session(struct se_session *se_sess)
 	pr_debug("TARGET_CORE[%s]: Deregistered fabric_sess\n",
 		se_tpg->se_tpg_tfo->get_fabric_name());
 	/*
-	 * If last kref is dropping now for an explict NodeACL, awake sleeping
+	 * If last kref is dropping now for an explicit NodeACL, awake sleeping
 	 * ->acl_free_comp caller to wakeup configfs se_node_acl->acl_group
 	 * removal context.
 	 */
@@ -636,7 +636,7 @@ void target_complete_cmd(struct se_cmd *cmd, u8 scsi_status)
 		cmd->transport_state |= CMD_T_FAILED;
 
 	/*
-	 * Check for case where an explict ABORT_TASK has been received
+	 * Check for case where an explicit ABORT_TASK has been received
 	 * and transport_wait_for_tasks() will be waiting for completion..
 	 */
 	if (cmd->transport_state & CMD_T_ABORTED &&
diff --git a/drivers/target/target_core_ua.h b/drivers/target/target_core_ua.h
index 0204952fe4d3..be912b36daae 100644
--- a/drivers/target/target_core_ua.h
+++ b/drivers/target/target_core_ua.h
@@ -19,7 +19,7 @@
 #define ASCQ_2AH_RESERVATIONS_RELEASED				0x04
 #define ASCQ_2AH_REGISTRATIONS_PREEMPTED			0x05
 #define ASCQ_2AH_ASYMMETRIC_ACCESS_STATE_CHANGED		0x06
-#define ASCQ_2AH_IMPLICT_ASYMMETRIC_ACCESS_STATE_TRANSITION_FAILED 0x07
+#define ASCQ_2AH_IMPLICIT_ASYMMETRIC_ACCESS_STATE_TRANSITION_FAILED 0x07
 #define ASCQ_2AH_PRIORITY_CHANGED				0x08
 
 #define ASCQ_2CH_PREVIOUS_RESERVATION_CONFLICT_STATUS		0x09
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index fab91baf8ef4..3b0b64aefc27 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -287,7 +287,7 @@ struct t10_alua_tg_pt_gp {
 	int	tg_pt_gp_alua_access_type;
 	int	tg_pt_gp_nonop_delay_msecs;
 	int	tg_pt_gp_trans_delay_msecs;
-	int	tg_pt_gp_implict_trans_secs;
+	int	tg_pt_gp_implicit_trans_secs;
 	int	tg_pt_gp_pref;
 	int	tg_pt_gp_write_metadata;
 	/* Used by struct t10_alua_tg_pt_gp->tg_pt_gp_md_buf_len */
-- 
cgit 


From f1ae05d55de0330dcba283d2a957cc8bbe44f12b Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Tue, 19 Nov 2013 09:07:47 +0100
Subject: target_core_alua: spellcheck

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/target_core_alua.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index 8297d3796d8c..199435398654 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -330,7 +330,7 @@ target_emulate_set_target_port_groups(struct se_cmd *cmd)
 			spin_unlock(&dev->t10_alua.tg_pt_gps_lock);
 		} else {
 			/*
-			 * Extact the RELATIVE TARGET PORT IDENTIFIER to identify
+			 * Extract the RELATIVE TARGET PORT IDENTIFIER to identify
 			 * the Target Port in question for the the incoming
 			 * SET_TARGET_PORT_GROUPS op.
 			 */
@@ -487,7 +487,7 @@ static inline int core_alua_state_transition(
 	u8 *alua_ascq)
 {
 	/*
-	 * Allowed CDBs for ALUA_ACCESS_STATE_TRANSITIO as defined by
+	 * Allowed CDBs for ALUA_ACCESS_STATE_TRANSITION as defined by
 	 * spc4r17 section 5.9.2.5
 	 */
 	switch (cdb[0]) {
@@ -515,9 +515,9 @@ static inline int core_alua_state_transition(
 }
 
 /*
- * return 1: Is used to signal LUN not accecsable, and check condition/not ready
+ * return 1: Is used to signal LUN not accessible, and check condition/not ready
  * return 0: Used to signal success
- * reutrn -1: Used to signal failure, and invalid cdb field
+ * return -1: Used to signal failure, and invalid cdb field
  */
 sense_reason_t
 target_alua_state_check(struct se_cmd *cmd)
@@ -802,7 +802,7 @@ static int core_alua_do_transition_tg_pt(
 		 * change, a device server shall establish a unit attention
 		 * condition for the initiator port associated with every I_T
 		 * nexus with the additional sense code set to ASYMMETRIC
-		 * ACCESS STATE CHAGED.
+		 * ACCESS STATE CHANGED.
 		 *
 		 * After an explicit target port asymmetric access state
 		 * change, a device server shall establish a unit attention
@@ -946,7 +946,7 @@ int core_alua_do_port_transition(
 				continue;
 			/*
 			 * If the target behavior port asymmetric access state
-			 * is changed for any target port group accessiable via
+			 * is changed for any target port group accessible via
 			 * a logical unit within a LU group, the target port
 			 * behavior group asymmetric access states for the same
 			 * target port group accessible via other logical units
@@ -1232,7 +1232,7 @@ void core_alua_free_lu_gp(struct t10_alua_lu_gp *lu_gp)
 		 * struct se_device is released via core_alua_free_lu_gp_mem().
 		 *
 		 * If the passed lu_gp does NOT match the default_lu_gp, assume
-		 * we want to re-assocate a given lu_gp_mem with default_lu_gp.
+		 * we want to re-associate a given lu_gp_mem with default_lu_gp.
 		 */
 		spin_lock(&lu_gp_mem->lu_gp_mem_lock);
 		if (lu_gp != default_lu_gp)
@@ -1465,7 +1465,7 @@ void core_alua_free_tg_pt_gp(
 	 * been called from target_core_alua_drop_tg_pt_gp().
 	 *
 	 * Here we remove *tg_pt_gp from the global list so that
-	 * no assications *OR* explicit ALUA via SET_TARGET_PORT_GROUPS
+	 * no associations *OR* explicit ALUA via SET_TARGET_PORT_GROUPS
 	 * can be made while we are releasing struct t10_alua_tg_pt_gp.
 	 */
 	spin_lock(&dev->t10_alua.tg_pt_gps_lock);
@@ -1501,7 +1501,7 @@ void core_alua_free_tg_pt_gp(
 		 * core_alua_free_tg_pt_gp_mem().
 		 *
 		 * If the passed tg_pt_gp does NOT match the default_tg_pt_gp,
-		 * assume we want to re-assocate a given tg_pt_gp_mem with
+		 * assume we want to re-associate a given tg_pt_gp_mem with
 		 * default_tg_pt_gp.
 		 */
 		spin_lock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
-- 
cgit 


From 73f3bf51e0b296acc58f895639be743739347da1 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Tue, 19 Nov 2013 09:07:48 +0100
Subject: target_core_alua: Rename ALUA_ACCESS_STATE_OPTIMIZED

Rename ALUA_ACCESS_STATE_OPTMIZED to
ALUA_ACCESS_STATE_OPTIMIZED.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/target_core_alua.c | 10 +++++-----
 drivers/target/target_core_alua.h |  2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index 199435398654..08e41e33ab91 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -566,12 +566,12 @@ target_alua_state_check(struct se_cmd *cmd)
 	nonop_delay_msecs = tg_pt_gp->tg_pt_gp_nonop_delay_msecs;
 	spin_unlock(&tg_pt_gp_mem->tg_pt_gp_mem_lock);
 	/*
-	 * Process ALUA_ACCESS_STATE_ACTIVE_OPTMIZED in a separate conditional
+	 * Process ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED in a separate conditional
 	 * statement so the compiler knows explicitly to check this case first.
 	 * For the Optimized ALUA access state case, we want to process the
 	 * incoming fabric cmd ASAP..
 	 */
-	if (out_alua_state == ALUA_ACCESS_STATE_ACTIVE_OPTMIZED)
+	if (out_alua_state == ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED)
 		return 0;
 
 	switch (out_alua_state) {
@@ -626,7 +626,7 @@ static sense_reason_t
 core_alua_check_transition(int state, int *primary)
 {
 	switch (state) {
-	case ALUA_ACCESS_STATE_ACTIVE_OPTMIZED:
+	case ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED:
 	case ALUA_ACCESS_STATE_ACTIVE_NON_OPTIMIZED:
 	case ALUA_ACCESS_STATE_STANDBY:
 	case ALUA_ACCESS_STATE_UNAVAILABLE:
@@ -654,7 +654,7 @@ core_alua_check_transition(int state, int *primary)
 static char *core_alua_dump_state(int state)
 {
 	switch (state) {
-	case ALUA_ACCESS_STATE_ACTIVE_OPTMIZED:
+	case ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED:
 		return "Active/Optimized";
 	case ALUA_ACCESS_STATE_ACTIVE_NON_OPTIMIZED:
 		return "Active/NonOptimized";
@@ -1354,7 +1354,7 @@ struct t10_alua_tg_pt_gp *core_alua_allocate_tg_pt_gp(struct se_device *dev,
 	tg_pt_gp->tg_pt_gp_dev = dev;
 	tg_pt_gp->tg_pt_gp_md_buf_len = ALUA_MD_BUF_LEN;
 	atomic_set(&tg_pt_gp->tg_pt_gp_alua_access_state,
-		ALUA_ACCESS_STATE_ACTIVE_OPTMIZED);
+		ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED);
 	/*
 	 * Enable both explicit and implicit ALUA support by default
 	 */
diff --git a/drivers/target/target_core_alua.h b/drivers/target/target_core_alua.h
index 74cf0c0581e6..d6db78b3e9e4 100644
--- a/drivers/target/target_core_alua.h
+++ b/drivers/target/target_core_alua.h
@@ -15,7 +15,7 @@
  *
  * from spc4r17 section 6.27 Table 245
  */
-#define ALUA_ACCESS_STATE_ACTIVE_OPTMIZED	0x0
+#define ALUA_ACCESS_STATE_ACTIVE_OPTIMIZED	0x0
 #define ALUA_ACCESS_STATE_ACTIVE_NON_OPTIMIZED	0x1
 #define ALUA_ACCESS_STATE_STANDBY		0x2
 #define ALUA_ACCESS_STATE_UNAVAILABLE		0x3
-- 
cgit 


From c0dc941e2bdfad4deccf3ba2626f485b5a5f59a4 Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Tue, 19 Nov 2013 09:07:49 +0100
Subject: target_core_alua: Store supported ALUA states

The supported ALUA states might be different for individual
devices, so store it in a separate field.

(nab: Remove unnecessary line continuation)

Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/target_core_alua.c | 14 ++++++++------
 drivers/target/target_core_alua.h | 11 +++++++++++
 include/target/target_core_base.h |  1 +
 3 files changed, 20 insertions(+), 6 deletions(-)

diff --git a/drivers/target/target_core_alua.c b/drivers/target/target_core_alua.c
index 08e41e33ab91..fdcee326bfbc 100644
--- a/drivers/target/target_core_alua.c
+++ b/drivers/target/target_core_alua.c
@@ -117,12 +117,7 @@ target_emulate_report_target_port_groups(struct se_cmd *cmd)
 		/*
 		 * Set supported ASYMMETRIC ACCESS State bits
 		 */
-		buf[off] = 0x80; /* T_SUP */
-		buf[off] |= 0x40; /* O_SUP */
-		buf[off] |= 0x8; /* U_SUP */
-		buf[off] |= 0x4; /* S_SUP */
-		buf[off] |= 0x2; /* AN_SUP */
-		buf[off++] |= 0x1; /* AO_SUP */
+		buf[off++] |= tg_pt_gp->tg_pt_gp_alua_supported_states;
 		/*
 		 * TARGET PORT GROUP
 		 */
@@ -1367,6 +1362,13 @@ struct t10_alua_tg_pt_gp *core_alua_allocate_tg_pt_gp(struct se_device *dev,
 	tg_pt_gp->tg_pt_gp_trans_delay_msecs = ALUA_DEFAULT_TRANS_DELAY_MSECS;
 	tg_pt_gp->tg_pt_gp_implicit_trans_secs = ALUA_DEFAULT_IMPLICIT_TRANS_SECS;
 
+	/*
+	 * Enable all supported states
+	 */
+	tg_pt_gp->tg_pt_gp_alua_supported_states =
+	    ALUA_T_SUP | ALUA_O_SUP |
+	    ALUA_U_SUP | ALUA_S_SUP | ALUA_AN_SUP | ALUA_AO_SUP;
+
 	if (def_group) {
 		spin_lock(&dev->t10_alua.tg_pt_gps_lock);
 		tg_pt_gp->tg_pt_gp_id =
diff --git a/drivers/target/target_core_alua.h b/drivers/target/target_core_alua.h
index d6db78b3e9e4..88e2e835f14a 100644
--- a/drivers/target/target_core_alua.h
+++ b/drivers/target/target_core_alua.h
@@ -22,6 +22,17 @@
 #define ALUA_ACCESS_STATE_OFFLINE		0xe
 #define ALUA_ACCESS_STATE_TRANSITION		0xf
 
+/*
+ * from spc4r36j section 6.37 Table 306
+ */
+#define ALUA_T_SUP		0x80
+#define ALUA_O_SUP		0x40
+#define ALUA_LBD_SUP		0x10
+#define ALUA_U_SUP		0x08
+#define ALUA_S_SUP		0x04
+#define ALUA_AN_SUP		0x02
+#define ALUA_AO_SUP		0x01
+
 /*
  * REPORT_TARGET_PORT_GROUP STATUS CODE
  *
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 3b0b64aefc27..45412a6afa69 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -283,6 +283,7 @@ struct t10_alua_lu_gp_member {
 struct t10_alua_tg_pt_gp {
 	u16	tg_pt_gp_id;
 	int	tg_pt_gp_valid_id;
+	int	tg_pt_gp_alua_supported_states;
 	int	tg_pt_gp_alua_access_status;
 	int	tg_pt_gp_alua_access_type;
 	int	tg_pt_gp_nonop_delay_msecs;
-- 
cgit 


From 6be526c45d31840f3384f41f62bcd796d35a9a5b Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Tue, 19 Nov 2013 09:07:50 +0100
Subject: target_core_alua: Make supported states configurable

Signed-off-by: Hannes Reinecke <hare@suse.de>
---
 drivers/target/target_core_configfs.c | 50 +++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)

diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index 3a964fbf50ee..1e4ea288303a 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -2130,6 +2130,55 @@ static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_access_type(
 
 SE_DEV_ALUA_TG_PT_ATTR(alua_access_type, S_IRUGO | S_IWUSR);
 
+/*
+ * alua_supported_states
+ */
+static ssize_t target_core_alua_tg_pt_gp_show_attr_alua_supported_states(
+	struct t10_alua_tg_pt_gp *tg_pt_gp,
+	char *page)
+{
+	return sprintf(page, "%02x\n",
+		tg_pt_gp->tg_pt_gp_alua_supported_states);
+}
+
+static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_supported_states(
+	struct t10_alua_tg_pt_gp *tg_pt_gp,
+	const char *page,
+	size_t count)
+{
+	unsigned long tmp;
+	int new_states, valid_states, ret;
+
+	if (!tg_pt_gp->tg_pt_gp_valid_id) {
+		pr_err("Unable to do set supported ALUA states on non"
+			" valid tg_pt_gp ID: %hu\n",
+			tg_pt_gp->tg_pt_gp_valid_id);
+		return -EINVAL;
+	}
+
+	ret = strict_strtoul(page, 0, &tmp);
+	if (ret < 0) {
+		pr_err("Unable to extract new supported ALUA states"
+				" from %s\n", page);
+		return -EINVAL;
+	}
+	new_states = (int)tmp;
+	valid_states = ALUA_T_SUP | ALUA_O_SUP | ALUA_LBD_SUP | \
+	    ALUA_U_SUP | ALUA_S_SUP | ALUA_AN_SUP | ALUA_AO_SUP;
+
+
+	if (new_states & ~valid_states) {
+		pr_err("Illegal supported ALUA states: 0x%02x\n",
+				new_states);
+		return -EINVAL;
+	}
+
+	tg_pt_gp->tg_pt_gp_alua_supported_states = new_states;
+	return count;
+}
+
+SE_DEV_ALUA_TG_PT_ATTR(alua_supported_states, S_IRUGO | S_IWUSR);
+
 /*
  * alua_write_metadata
  */
@@ -2350,6 +2399,7 @@ static struct configfs_attribute *target_core_alua_tg_pt_gp_attrs[] = {
 	&target_core_alua_tg_pt_gp_alua_access_state.attr,
 	&target_core_alua_tg_pt_gp_alua_access_status.attr,
 	&target_core_alua_tg_pt_gp_alua_access_type.attr,
+	&target_core_alua_tg_pt_gp_alua_supported_states.attr,
 	&target_core_alua_tg_pt_gp_alua_write_metadata.attr,
 	&target_core_alua_tg_pt_gp_nonop_delay_msecs.attr,
 	&target_core_alua_tg_pt_gp_trans_delay_msecs.attr,
-- 
cgit 


From b0a382c58ef5c12804cda4268d7e62bef978789d Mon Sep 17 00:00:00 2001
From: Hannes Reinecke <hare@suse.de>
Date: Tue, 19 Nov 2013 09:07:51 +0100
Subject: target_core_configfs: split up ALUA supported states

Split up the various ALUA states into individual attributes to
make parsing easier and adhere to the one value per attribute
sysfs principle.

(nab: Convert strict_strtoul -> kstrtoul usage)

Signed-off-by: Hannes Reinecke <hare@suse.de>
---
 drivers/target/target_core_configfs.c | 127 ++++++++++++++++++++++------------
 1 file changed, 84 insertions(+), 43 deletions(-)

diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index 1e4ea288303a..272755d03e5a 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -2133,51 +2133,86 @@ SE_DEV_ALUA_TG_PT_ATTR(alua_access_type, S_IRUGO | S_IWUSR);
 /*
  * alua_supported_states
  */
-static ssize_t target_core_alua_tg_pt_gp_show_attr_alua_supported_states(
-	struct t10_alua_tg_pt_gp *tg_pt_gp,
-	char *page)
-{
-	return sprintf(page, "%02x\n",
-		tg_pt_gp->tg_pt_gp_alua_supported_states);
-}
-
-static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_supported_states(
-	struct t10_alua_tg_pt_gp *tg_pt_gp,
-	const char *page,
-	size_t count)
-{
-	unsigned long tmp;
-	int new_states, valid_states, ret;
 
-	if (!tg_pt_gp->tg_pt_gp_valid_id) {
-		pr_err("Unable to do set supported ALUA states on non"
-			" valid tg_pt_gp ID: %hu\n",
-			tg_pt_gp->tg_pt_gp_valid_id);
-		return -EINVAL;
-	}
-
-	ret = strict_strtoul(page, 0, &tmp);
-	if (ret < 0) {
-		pr_err("Unable to extract new supported ALUA states"
-				" from %s\n", page);
-		return -EINVAL;
-	}
-	new_states = (int)tmp;
-	valid_states = ALUA_T_SUP | ALUA_O_SUP | ALUA_LBD_SUP | \
-	    ALUA_U_SUP | ALUA_S_SUP | ALUA_AN_SUP | ALUA_AO_SUP;
-
-
-	if (new_states & ~valid_states) {
-		pr_err("Illegal supported ALUA states: 0x%02x\n",
-				new_states);
-		return -EINVAL;
-	}
-
-	tg_pt_gp->tg_pt_gp_alua_supported_states = new_states;
-	return count;
+#define SE_DEV_ALUA_SUPPORT_STATE_SHOW(_name, _var, _bit)		\
+static ssize_t target_core_alua_tg_pt_gp_show_attr_alua_support_##_name( \
+	struct t10_alua_tg_pt_gp *t, char *p)				\
+{									\
+	return sprintf(p, "%d\n", !!(t->_var & _bit));			\
 }
 
-SE_DEV_ALUA_TG_PT_ATTR(alua_supported_states, S_IRUGO | S_IWUSR);
+#define SE_DEV_ALUA_SUPPORT_STATE_STORE(_name, _var, _bit)		\
+static ssize_t target_core_alua_tg_pt_gp_store_attr_alua_support_##_name(\
+	struct t10_alua_tg_pt_gp *t, const char *p, size_t c)		\
+{									\
+	unsigned long tmp;						\
+	int ret;							\
+									\
+	if (!t->tg_pt_gp_valid_id) {					\
+		pr_err("Unable to do set ##_name ALUA state on non"	\
+		       " valid tg_pt_gp ID: %hu\n",			\
+		       t->tg_pt_gp_valid_id);				\
+		return -EINVAL;						\
+	}								\
+									\
+	ret = kstrtoul(p, 0, &tmp);					\
+	if (ret < 0) {							\
+		pr_err("Invalid value '%s', must be '0' or '1'\n", p);	\
+		return -EINVAL;						\
+	}								\
+	if (tmp > 1) {							\
+		pr_err("Invalid value '%ld', must be '0' or '1'\n", tmp); \
+		return -EINVAL;						\
+	}								\
+	if (!tmp)							\
+		t->_var |= _bit;					\
+	else								\
+		t->_var &= ~_bit;					\
+									\
+	return c;							\
+}
+
+SE_DEV_ALUA_SUPPORT_STATE_SHOW(transitioning,
+			       tg_pt_gp_alua_supported_states, ALUA_T_SUP);
+SE_DEV_ALUA_SUPPORT_STATE_STORE(transitioning,
+				tg_pt_gp_alua_supported_states, ALUA_T_SUP);
+SE_DEV_ALUA_TG_PT_ATTR(alua_support_transitioning, S_IRUGO | S_IWUSR);
+
+SE_DEV_ALUA_SUPPORT_STATE_SHOW(offline,
+			       tg_pt_gp_alua_supported_states, ALUA_O_SUP);
+SE_DEV_ALUA_SUPPORT_STATE_STORE(offline,
+				tg_pt_gp_alua_supported_states, ALUA_O_SUP);
+SE_DEV_ALUA_TG_PT_ATTR(alua_support_offline, S_IRUGO | S_IWUSR);
+
+SE_DEV_ALUA_SUPPORT_STATE_SHOW(lba_dependent,
+			       tg_pt_gp_alua_supported_states, ALUA_LBD_SUP);
+SE_DEV_ALUA_SUPPORT_STATE_STORE(lba_dependent,
+				tg_pt_gp_alua_supported_states, ALUA_LBD_SUP);
+SE_DEV_ALUA_TG_PT_ATTR(alua_support_lba_dependent, S_IRUGO | S_IWUSR);
+
+SE_DEV_ALUA_SUPPORT_STATE_SHOW(unavailable,
+			       tg_pt_gp_alua_supported_states, ALUA_U_SUP);
+SE_DEV_ALUA_SUPPORT_STATE_STORE(unavailable,
+				tg_pt_gp_alua_supported_states, ALUA_U_SUP);
+SE_DEV_ALUA_TG_PT_ATTR(alua_support_unavailable, S_IRUGO | S_IWUSR);
+
+SE_DEV_ALUA_SUPPORT_STATE_SHOW(standby,
+			       tg_pt_gp_alua_supported_states, ALUA_S_SUP);
+SE_DEV_ALUA_SUPPORT_STATE_STORE(standby,
+				tg_pt_gp_alua_supported_states, ALUA_S_SUP);
+SE_DEV_ALUA_TG_PT_ATTR(alua_support_standby, S_IRUGO | S_IWUSR);
+
+SE_DEV_ALUA_SUPPORT_STATE_SHOW(active_optimized,
+			       tg_pt_gp_alua_supported_states, ALUA_AO_SUP);
+SE_DEV_ALUA_SUPPORT_STATE_STORE(active_optimized,
+				tg_pt_gp_alua_supported_states, ALUA_AO_SUP);
+SE_DEV_ALUA_TG_PT_ATTR(alua_support_active_optimized, S_IRUGO | S_IWUSR);
+
+SE_DEV_ALUA_SUPPORT_STATE_SHOW(active_nonoptimized,
+			       tg_pt_gp_alua_supported_states, ALUA_AN_SUP);
+SE_DEV_ALUA_SUPPORT_STATE_STORE(active_nonoptimized,
+				tg_pt_gp_alua_supported_states, ALUA_AN_SUP);
+SE_DEV_ALUA_TG_PT_ATTR(alua_support_active_nonoptimized, S_IRUGO | S_IWUSR);
 
 /*
  * alua_write_metadata
@@ -2399,7 +2434,13 @@ static struct configfs_attribute *target_core_alua_tg_pt_gp_attrs[] = {
 	&target_core_alua_tg_pt_gp_alua_access_state.attr,
 	&target_core_alua_tg_pt_gp_alua_access_status.attr,
 	&target_core_alua_tg_pt_gp_alua_access_type.attr,
-	&target_core_alua_tg_pt_gp_alua_supported_states.attr,
+	&target_core_alua_tg_pt_gp_alua_support_transitioning.attr,
+	&target_core_alua_tg_pt_gp_alua_support_offline.attr,
+	&target_core_alua_tg_pt_gp_alua_support_lba_dependent.attr,
+	&target_core_alua_tg_pt_gp_alua_support_unavailable.attr,
+	&target_core_alua_tg_pt_gp_alua_support_standby.attr,
+	&target_core_alua_tg_pt_gp_alua_support_active_nonoptimized.attr,
+	&target_core_alua_tg_pt_gp_alua_support_active_optimized.attr,
 	&target_core_alua_tg_pt_gp_alua_write_metadata.attr,
 	&target_core_alua_tg_pt_gp_nonop_delay_msecs.attr,
 	&target_core_alua_tg_pt_gp_trans_delay_msecs.attr,
-- 
cgit 


From d1fa7a1d506730a5d1211048c2fdacc42373d4d5 Mon Sep 17 00:00:00 2001
From: Nicholas Bellinger <nab@linux-iscsi.org>
Date: Wed, 20 Nov 2013 11:57:18 -0800
Subject: iscsi-target: Expose default_erl as TPG attribute

This patch exposes default_erl as a TPG attribute so that it may be
set TPG wide in demo-mode, but still allow the existing NodeACL
attribute to be overridden on a per initiator basis.

Reported-by: Arshad Hussain <arshad.hussain@calsoftinc.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/iscsi/iscsi_target_configfs.c   | 11 ++++++++++-
 drivers/target/iscsi/iscsi_target_core.h       |  5 ++---
 drivers/target/iscsi/iscsi_target_nodeattrib.c |  5 +++--
 drivers/target/iscsi/iscsi_target_nodeattrib.h |  3 ++-
 drivers/target/iscsi/iscsi_target_tpg.c        | 18 ++++++++++++++++++
 drivers/target/iscsi/iscsi_target_tpg.h        |  1 +
 6 files changed, 36 insertions(+), 7 deletions(-)

diff --git a/drivers/target/iscsi/iscsi_target_configfs.c b/drivers/target/iscsi/iscsi_target_configfs.c
index fde3624dce7e..e3318edb233d 100644
--- a/drivers/target/iscsi/iscsi_target_configfs.c
+++ b/drivers/target/iscsi/iscsi_target_configfs.c
@@ -1046,6 +1046,11 @@ TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR);
  */
 DEF_TPG_ATTRIB(demo_mode_discovery);
 TPG_ATTR(demo_mode_discovery, S_IRUGO | S_IWUSR);
+/*
+ * Define iscsi_tpg_attrib_s_default_erl
+ */
+DEF_TPG_ATTRIB(default_erl);
+TPG_ATTR(default_erl, S_IRUGO | S_IWUSR);
 
 static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
 	&iscsi_tpg_attrib_authentication.attr,
@@ -1057,6 +1062,7 @@ static struct configfs_attribute *lio_target_tpg_attrib_attrs[] = {
 	&iscsi_tpg_attrib_demo_mode_write_protect.attr,
 	&iscsi_tpg_attrib_prod_mode_write_protect.attr,
 	&iscsi_tpg_attrib_demo_mode_discovery.attr,
+	&iscsi_tpg_attrib_default_erl.attr,
 	NULL,
 };
 
@@ -1919,9 +1925,12 @@ static void lio_set_default_node_attributes(struct se_node_acl *se_acl)
 {
 	struct iscsi_node_acl *acl = container_of(se_acl, struct iscsi_node_acl,
 				se_node_acl);
+	struct se_portal_group *se_tpg = se_acl->se_tpg;
+	struct iscsi_portal_group *tpg = container_of(se_tpg,
+				struct iscsi_portal_group, tpg_se_tpg);
 
 	acl->node_attrib.nacl = acl;
-	iscsit_set_default_node_attribues(acl);
+	iscsit_set_default_node_attribues(acl, tpg);
 }
 
 static int lio_check_stop_free(struct se_cmd *se_cmd)
diff --git a/drivers/target/iscsi/iscsi_target_core.h b/drivers/target/iscsi/iscsi_target_core.h
index 8dcb3c1aa801..48f7b3bf4e8c 100644
--- a/drivers/target/iscsi/iscsi_target_core.h
+++ b/drivers/target/iscsi/iscsi_target_core.h
@@ -37,9 +37,6 @@
 #define NA_RANDOM_DATAIN_PDU_OFFSETS	0
 #define NA_RANDOM_DATAIN_SEQ_OFFSETS	0
 #define NA_RANDOM_R2T_OFFSETS		0
-#define NA_DEFAULT_ERL			0
-#define NA_DEFAULT_ERL_MAX		2
-#define NA_DEFAULT_ERL_MIN		0
 
 /* struct iscsi_tpg_attrib sanity values */
 #define TA_AUTHENTICATION		1
@@ -59,6 +56,7 @@
 /* Disabled by default in production mode w/ explict ACLs */
 #define TA_PROD_MODE_WRITE_PROTECT	0
 #define TA_DEMO_MODE_DISCOVERY		1
+#define TA_DEFAULT_ERL			0
 #define TA_CACHE_CORE_NPS		0
 
 
@@ -766,6 +764,7 @@ struct iscsi_tpg_attrib {
 	u32			demo_mode_write_protect;
 	u32			prod_mode_write_protect;
 	u32			demo_mode_discovery;
+	u32			default_erl;
 	struct iscsi_portal_group *tpg;
 };
 
diff --git a/drivers/target/iscsi/iscsi_target_nodeattrib.c b/drivers/target/iscsi/iscsi_target_nodeattrib.c
index 93bdc475eb00..16454a922e2b 100644
--- a/drivers/target/iscsi/iscsi_target_nodeattrib.c
+++ b/drivers/target/iscsi/iscsi_target_nodeattrib.c
@@ -33,7 +33,8 @@ static inline char *iscsit_na_get_initiatorname(
 }
 
 void iscsit_set_default_node_attribues(
-	struct iscsi_node_acl *acl)
+	struct iscsi_node_acl *acl,
+	struct iscsi_portal_group *tpg)
 {
 	struct iscsi_node_attrib *a = &acl->node_attrib;
 
@@ -44,7 +45,7 @@ void iscsit_set_default_node_attribues(
 	a->random_datain_pdu_offsets = NA_RANDOM_DATAIN_PDU_OFFSETS;
 	a->random_datain_seq_offsets = NA_RANDOM_DATAIN_SEQ_OFFSETS;
 	a->random_r2t_offsets = NA_RANDOM_R2T_OFFSETS;
-	a->default_erl = NA_DEFAULT_ERL;
+	a->default_erl = tpg->tpg_attrib.default_erl;
 }
 
 int iscsit_na_dataout_timeout(
diff --git a/drivers/target/iscsi/iscsi_target_nodeattrib.h b/drivers/target/iscsi/iscsi_target_nodeattrib.h
index c970b326ef23..0c69a46a62ec 100644
--- a/drivers/target/iscsi/iscsi_target_nodeattrib.h
+++ b/drivers/target/iscsi/iscsi_target_nodeattrib.h
@@ -1,7 +1,8 @@
 #ifndef ISCSI_TARGET_NODEATTRIB_H
 #define ISCSI_TARGET_NODEATTRIB_H
 
-extern void iscsit_set_default_node_attribues(struct iscsi_node_acl *);
+extern void iscsit_set_default_node_attribues(struct iscsi_node_acl *,
+					      struct iscsi_portal_group *);
 extern int iscsit_na_dataout_timeout(struct iscsi_node_acl *, u32);
 extern int iscsit_na_dataout_timeout_retries(struct iscsi_node_acl *, u32);
 extern int iscsit_na_nopin_timeout(struct iscsi_node_acl *, u32);
diff --git a/drivers/target/iscsi/iscsi_target_tpg.c b/drivers/target/iscsi/iscsi_target_tpg.c
index 98ccf0bff546..39761837608d 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.c
+++ b/drivers/target/iscsi/iscsi_target_tpg.c
@@ -224,6 +224,7 @@ static void iscsit_set_default_tpg_attribs(struct iscsi_portal_group *tpg)
 	a->demo_mode_write_protect = TA_DEMO_MODE_WRITE_PROTECT;
 	a->prod_mode_write_protect = TA_PROD_MODE_WRITE_PROTECT;
 	a->demo_mode_discovery = TA_DEMO_MODE_DISCOVERY;
+	a->default_erl = TA_DEFAULT_ERL;
 }
 
 int iscsit_tpg_add_portal_group(struct iscsi_tiqn *tiqn, struct iscsi_portal_group *tpg)
@@ -840,3 +841,20 @@ int iscsit_ta_demo_mode_discovery(
 
 	return 0;
 }
+
+int iscsit_ta_default_erl(
+	struct iscsi_portal_group *tpg,
+	u32 default_erl)
+{
+	struct iscsi_tpg_attrib *a = &tpg->tpg_attrib;
+
+	if ((default_erl != 0) && (default_erl != 1) && (default_erl != 2)) {
+		pr_err("Illegal value for default_erl: %u\n", default_erl);
+		return -EINVAL;
+	}
+
+	a->default_erl = default_erl;
+	pr_debug("iSCSI_TPG[%hu] - DefaultERL: %u\n", tpg->tpgt, a->default_erl);
+
+	return 0;
+}
diff --git a/drivers/target/iscsi/iscsi_target_tpg.h b/drivers/target/iscsi/iscsi_target_tpg.h
index 3e8ce8644082..213c0fc7fdc9 100644
--- a/drivers/target/iscsi/iscsi_target_tpg.h
+++ b/drivers/target/iscsi/iscsi_target_tpg.h
@@ -38,5 +38,6 @@ extern int iscsit_ta_cache_dynamic_acls(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_demo_mode_write_protect(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_prod_mode_write_protect(struct iscsi_portal_group *, u32);
 extern int iscsit_ta_demo_mode_discovery(struct iscsi_portal_group *, u32);
+extern int iscsit_ta_default_erl(struct iscsi_portal_group *, u32);
 
 #endif /* ISCSI_TARGET_TPG_H */
-- 
cgit 


From 7937f9e5141c9d4864d399d91325605a35cd5831 Mon Sep 17 00:00:00 2001
From: hayeswang <hayeswang@realtek.com>
Date: Wed, 20 Nov 2013 17:30:54 +0800
Subject: r8152: fix tx/rx memory overflow

The tx/rx would access the memory which is out of the desired range.
Modify the method of checking the end of the memory to avoid it.

For r8152_tx_agg_fill(), the variable remain may become negative.
However, the declaration is unsigned, so the while loop wouldn't
break when reaching the end of the desied memory. Although to change
the declaration from unsigned to signed is enough to fix it, I also
modify the checking method for safe. Replace

		remain = rx_buf_sz - sizeof(*tx_desc) -
			 (u32)((void *)tx_data - agg->head);

with

		remain = rx_buf_sz - (int)(tx_agg_align(tx_data) - agg->head);

to make sure the variable remain is always positive. Then, the
overflow wouldn't happen.

For rx_bottom(), the rx_desc should not be used to calculate the
packet length before making sure the rx_desc is in the desired range.
Change the checking to two parts. First, check the descriptor is in
the memory. The other, using the descriptor to find out the packet
length and check if the packet is in the memory.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/r8152.c | 30 +++++++++++++++++-------------
 1 file changed, 17 insertions(+), 13 deletions(-)

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index f3fce412c0c1..428600d5c056 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -24,7 +24,7 @@
 #include <linux/ipv6.h>
 
 /* Version Information */
-#define DRIVER_VERSION "v1.01.0 (2013/08/12)"
+#define DRIVER_VERSION "v1.02.0 (2013/10/28)"
 #define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>"
 #define DRIVER_DESC "Realtek RTL8152 Based USB 2.0 Ethernet Adapters"
 #define MODULENAME "r8152"
@@ -1136,14 +1136,14 @@ r8152_tx_csum(struct r8152 *tp, struct tx_desc *desc, struct sk_buff *skb)
 
 static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg)
 {
-	u32 remain;
+	int remain;
 	u8 *tx_data;
 
 	tx_data = agg->head;
 	agg->skb_num = agg->skb_len = 0;
-	remain = rx_buf_sz - sizeof(struct tx_desc);
+	remain = rx_buf_sz;
 
-	while (remain >= ETH_ZLEN) {
+	while (remain >= ETH_ZLEN + sizeof(struct tx_desc)) {
 		struct tx_desc *tx_desc;
 		struct sk_buff *skb;
 		unsigned int len;
@@ -1152,12 +1152,14 @@ static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg)
 		if (!skb)
 			break;
 
+		remain -= sizeof(*tx_desc);
 		len = skb->len;
 		if (remain < len) {
 			skb_queue_head(&tp->tx_queue, skb);
 			break;
 		}
 
+		tx_data = tx_agg_align(tx_data);
 		tx_desc = (struct tx_desc *)tx_data;
 		tx_data += sizeof(*tx_desc);
 
@@ -1167,9 +1169,8 @@ static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg)
 		agg->skb_len += len;
 		dev_kfree_skb_any(skb);
 
-		tx_data = tx_agg_align(tx_data + len);
-		remain = rx_buf_sz - sizeof(*tx_desc) -
-			 (u32)((void *)tx_data - agg->head);
+		tx_data += len;
+		remain = rx_buf_sz - (int)(tx_agg_align(tx_data) - agg->head);
 	}
 
 	usb_fill_bulk_urb(agg->urb, tp->udev, usb_sndbulkpipe(tp->udev, 2),
@@ -1188,7 +1189,6 @@ static void rx_bottom(struct r8152 *tp)
 	list_for_each_safe(cursor, next, &tp->rx_done) {
 		struct rx_desc *rx_desc;
 		struct rx_agg *agg;
-		unsigned pkt_len;
 		int len_used = 0;
 		struct urb *urb;
 		u8 *rx_data;
@@ -1204,17 +1204,22 @@ static void rx_bottom(struct r8152 *tp)
 
 		rx_desc = agg->head;
 		rx_data = agg->head;
-		pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK;
-		len_used += sizeof(struct rx_desc) + pkt_len;
+		len_used += sizeof(struct rx_desc);
 
-		while (urb->actual_length >= len_used) {
+		while (urb->actual_length > len_used) {
 			struct net_device *netdev = tp->netdev;
 			struct net_device_stats *stats;
+			unsigned int pkt_len;
 			struct sk_buff *skb;
 
+			pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK;
 			if (pkt_len < ETH_ZLEN)
 				break;
 
+			len_used += pkt_len;
+			if (urb->actual_length < len_used)
+				break;
+
 			stats = rtl8152_get_stats(netdev);
 
 			pkt_len -= 4; /* CRC */
@@ -1234,9 +1239,8 @@ static void rx_bottom(struct r8152 *tp)
 
 			rx_data = rx_agg_align(rx_data + pkt_len + 4);
 			rx_desc = (struct rx_desc *)rx_data;
-			pkt_len = le32_to_cpu(rx_desc->opts1) & RX_LEN_MASK;
 			len_used = (int)(rx_data - (u8 *)agg->head);
-			len_used += sizeof(struct rx_desc) + pkt_len;
+			len_used += sizeof(struct rx_desc);
 		}
 
 submit:
-- 
cgit 


From 61598788582cafad52816d5d1db879334d8bd561 Mon Sep 17 00:00:00 2001
From: hayeswang <hayeswang@realtek.com>
Date: Wed, 20 Nov 2013 17:30:55 +0800
Subject: r8152: modify the tx flow

Remove the code for sending the packet in the rtl8152_start_xmit().
Let rtl8152_start_xmit() to queue the packet only, and schedule a
tasklet to send the queued packets. This simplify the code and make
sure all the packet would be sent by the original order.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/r8152.c | 46 +++-------------------------------------------
 1 file changed, 3 insertions(+), 43 deletions(-)

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 428600d5c056..8a786b65d883 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -1388,53 +1388,13 @@ static netdev_tx_t rtl8152_start_xmit(struct sk_buff *skb,
 					    struct net_device *netdev)
 {
 	struct r8152 *tp = netdev_priv(netdev);
-	struct net_device_stats *stats = rtl8152_get_stats(netdev);
-	unsigned long flags;
-	struct tx_agg *agg = NULL;
-	struct tx_desc *tx_desc;
-	unsigned int len;
-	u8 *tx_data;
-	int res;
 
 	skb_tx_timestamp(skb);
 
-	/* If tx_queue is not empty, it means at least one previous packt */
-	/* is waiting for sending. Don't send current one before it.      */
-	if (skb_queue_empty(&tp->tx_queue))
-		agg = r8152_get_tx_agg(tp);
-
-	if (!agg) {
-		skb_queue_tail(&tp->tx_queue, skb);
-		return NETDEV_TX_OK;
-	}
-
-	tx_desc = (struct tx_desc *)agg->head;
-	tx_data = agg->head + sizeof(*tx_desc);
-	agg->skb_num = agg->skb_len = 0;
+	skb_queue_tail(&tp->tx_queue, skb);
 
-	len = skb->len;
-	r8152_tx_csum(tp, tx_desc, skb);
-	memcpy(tx_data, skb->data, len);
-	dev_kfree_skb_any(skb);
-	agg->skb_num++;
-	agg->skb_len += len;
-	usb_fill_bulk_urb(agg->urb, tp->udev, usb_sndbulkpipe(tp->udev, 2),
-			  agg->head, len + sizeof(*tx_desc),
-			  (usb_complete_t)write_bulk_callback, agg);
-	res = usb_submit_urb(agg->urb, GFP_ATOMIC);
-	if (res) {
-		/* Can we get/handle EPIPE here? */
-		if (res == -ENODEV) {
-			netif_device_detach(tp->netdev);
-		} else {
-			netif_warn(tp, tx_err, netdev,
-				   "failed tx_urb %d\n", res);
-			stats->tx_dropped++;
-			spin_lock_irqsave(&tp->tx_lock, flags);
-			list_add_tail(&agg->list, &tp->tx_free);
-			spin_unlock_irqrestore(&tp->tx_lock, flags);
-		}
-	}
+	if (!list_empty(&tp->tx_free))
+		tasklet_schedule(&tp->tl);
 
 	return NETDEV_TX_OK;
 }
-- 
cgit 


From dd1b119c835632f5d939f2a7351ad95001d9cb52 Mon Sep 17 00:00:00 2001
From: hayeswang <hayeswang@realtek.com>
Date: Wed, 20 Nov 2013 17:30:56 +0800
Subject: r8152: support stopping/waking tx queue

The maximum packet number which a tx aggregation buffer could contain
is the tx_qlen.

	tx_qlen = buffer size / (packet size + descriptor size).

If the tx buffer is empty and the queued packets are more than the
maximum value which is defined above, stop the tx queue. Wake the
tx queue if tx queue is stopped and the queued packets are less than
tx_qlen.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/r8152.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index 8a786b65d883..f92e0cfb5d87 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -365,6 +365,7 @@ struct r8152 {
 	struct mii_if_info mii;
 	int intr_interval;
 	u32 msg_enable;
+	u32 tx_qlen;
 	u16 ocp_base;
 	u8 *intr_buff;
 	u8 version;
@@ -1173,6 +1174,14 @@ static int r8152_tx_agg_fill(struct r8152 *tp, struct tx_agg *agg)
 		remain = rx_buf_sz - (int)(tx_agg_align(tx_data) - agg->head);
 	}
 
+	netif_tx_lock(tp->netdev);
+
+	if (netif_queue_stopped(tp->netdev) &&
+	    skb_queue_len(&tp->tx_queue) < tp->tx_qlen)
+		netif_wake_queue(tp->netdev);
+
+	netif_tx_unlock(tp->netdev);
+
 	usb_fill_bulk_urb(agg->urb, tp->udev, usb_sndbulkpipe(tp->udev, 2),
 			  agg->head, (int)(tx_data - (u8 *)agg->head),
 			  (usb_complete_t)write_bulk_callback, agg);
@@ -1393,6 +1402,10 @@ static netdev_tx_t rtl8152_start_xmit(struct sk_buff *skb,
 
 	skb_queue_tail(&tp->tx_queue, skb);
 
+	if (list_empty(&tp->tx_free) &&
+	    skb_queue_len(&tp->tx_queue) > tp->tx_qlen)
+		netif_stop_queue(netdev);
+
 	if (!list_empty(&tp->tx_free))
 		tasklet_schedule(&tp->tl);
 
@@ -1423,6 +1436,14 @@ static void rtl8152_nic_reset(struct r8152 *tp)
 	}
 }
 
+static void set_tx_qlen(struct r8152 *tp)
+{
+	struct net_device *netdev = tp->netdev;
+
+	tp->tx_qlen = rx_buf_sz / (netdev->mtu + VLAN_ETH_HLEN + VLAN_HLEN +
+				   sizeof(struct tx_desc));
+}
+
 static inline u8 rtl8152_get_speed(struct r8152 *tp)
 {
 	return ocp_read_byte(tp, MCU_TYPE_PLA, PLA_PHYSTATUS);
@@ -1434,6 +1455,7 @@ static int rtl8152_enable(struct r8152 *tp)
 	int i, ret;
 	u8 speed;
 
+	set_tx_qlen(tp);
 	speed = rtl8152_get_speed(tp);
 	if (speed & _10bps) {
 		ocp_data = ocp_read_word(tp, MCU_TYPE_PLA, PLA_EEEP_CR);
-- 
cgit 


From 500b6d7e1ed80f697571cd976e385c3476effc86 Mon Sep 17 00:00:00 2001
From: hayeswang <hayeswang@realtek.com>
Date: Wed, 20 Nov 2013 17:30:57 +0800
Subject: r8152: fix incorrect type in assignment

The data from the hardware should be little endian. Correct the
declaration.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/usb/r8152.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index f92e0cfb5d87..51073721e224 100644
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -307,22 +307,22 @@ enum rtl8152_flags {
 #define MCU_TYPE_USB			0x0000
 
 struct rx_desc {
-	u32 opts1;
+	__le32 opts1;
 #define RX_LEN_MASK			0x7fff
-	u32 opts2;
-	u32 opts3;
-	u32 opts4;
-	u32 opts5;
-	u32 opts6;
+	__le32 opts2;
+	__le32 opts3;
+	__le32 opts4;
+	__le32 opts5;
+	__le32 opts6;
 };
 
 struct tx_desc {
-	u32 opts1;
+	__le32 opts1;
 #define TX_FS			(1 << 31) /* First segment of a packet */
 #define TX_LS			(1 << 30) /* Final segment of a packet */
 #define TX_LEN_MASK		0x3ffff
 
-	u32 opts2;
+	__le32 opts2;
 #define UDP_CS			(1 << 31) /* Calculate UDP/IP checksum */
 #define TCP_CS			(1 << 30) /* Calculate TCP/IP checksum */
 #define IPV4_CS			(1 << 29) /* Calculate IPv4 checksum */
@@ -877,7 +877,7 @@ static void write_bulk_callback(struct urb *urb)
 static void intr_callback(struct urb *urb)
 {
 	struct r8152 *tp;
-	__u16 *d;
+	__le16 *d;
 	int status = urb->status;
 	int res;
 
-- 
cgit 


From dcdfdf56b4a6c9437fc37dbc9cee94a788f9b0c4 Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@plumgrid.com>
Date: Tue, 19 Nov 2013 19:12:34 -0800
Subject: ipv4: fix race in concurrent ip_route_input_slow()

CPUs can ask for local route via ip_route_input_noref() concurrently.
if nh_rth_input is not cached yet, CPUs will proceed to allocate
equivalent DSTs on 'lo' and then will try to cache them in nh_rth_input
via rt_cache_route()
Most of the time they succeed, but on occasion the following two lines:
	orig = *p;
	prev = cmpxchg(p, orig, rt);
in rt_cache_route() do race and one of the cpus fails to complete cmpxchg.
But ip_route_input_slow() doesn't check the return code of rt_cache_route(),
so dst is leaking. dst_destroy() is never called and 'lo' device
refcnt doesn't go to zero, which can be seen in the logs as:
	unregister_netdevice: waiting for lo to become free. Usage count = 1
Adding mdelay() between above two lines makes it easily reproducible.
Fix it similar to nh_pcpu_rth_output case.

Fixes: d2d68ba9fe8b ("ipv4: Cache input routes in fib_info nexthops.")
Signed-off-by: Alexei Starovoitov <ast@plumgrid.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/route.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index f428935c50db..f8da28278014 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -1776,8 +1776,12 @@ local_input:
 		rth->dst.error= -err;
 		rth->rt_flags 	&= ~RTCF_LOCAL;
 	}
-	if (do_cache)
-		rt_cache_route(&FIB_RES_NH(res), rth);
+	if (do_cache) {
+		if (unlikely(!rt_cache_route(&FIB_RES_NH(res), rth))) {
+			rth->dst.flags |= DST_NOCACHE;
+			rt_add_uncached_list(rth);
+		}
+	}
 	skb_dst_set(skb, &rth->dst);
 	err = 0;
 	goto out;
-- 
cgit 


From d2615bf450694c1302d86b9cc8a8958edfe4c3a4 Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vyasevic@redhat.com>
Date: Tue, 19 Nov 2013 20:47:15 -0500
Subject: net: core: Always propagate flag changes to interfaces

The following commit:
    b6c40d68ff6498b7f63ddf97cf0aa818d748dee7
    net: only invoke dev->change_rx_flags when device is UP

tried to fix a problem with VLAN devices and promiscuouse flag setting.
The issue was that VLAN device was setting a flag on an interface that
was down, thus resulting in bad promiscuity count.
This commit blocked flag propagation to any device that is currently
down.

A later commit:
    deede2fabe24e00bd7e246eb81cd5767dc6fcfc7
    vlan: Don't propagate flag changes on down interfaces

fixed VLAN code to only propagate flags when the VLAN interface is up,
thus fixing the same issue as above, only localized to VLAN.

The problem we have now is that if we have create a complex stack
involving multiple software devices like bridges, bonds, and vlans,
then it is possible that the flags would not propagate properly to
the physical devices.  A simple examle of the scenario is the
following:

  eth0----> bond0 ----> bridge0 ---> vlan50

If bond0 or eth0 happen to be down at the time bond0 is added to
the bridge, then eth0 will never have promisc mode set which is
currently required for operation as part of the bridge.  As a
result, packets with vlan50 will be dropped by the interface.

The only 2 devices that implement the special flag handling are
VLAN and DSA and they both have required code to prevent incorrect
flag propagation.  As a result we can remove the generic solution
introduced in b6c40d68ff6498b7f63ddf97cf0aa818d748dee7 and leave
it to the individual devices to decide whether they will block
flag propagation or not.

Reported-by: Stefan Priebe <s.priebe@profihost.ag>
Suggested-by: Veaceslav Falico <vfalico@redhat.com>
Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/dev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/core/dev.c b/net/core/dev.c
index 7e00a7342ee6..ba3b7ea5ebb3 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -4996,7 +4996,7 @@ static void dev_change_rx_flags(struct net_device *dev, int flags)
 {
 	const struct net_device_ops *ops = dev->netdev_ops;
 
-	if ((dev->flags & IFF_UP) && ops->ndo_change_rx_flags)
+	if (ops->ndo_change_rx_flags)
 		ops->ndo_change_rx_flags(dev, flags);
 }
 
-- 
cgit 


From f873042093c0b418d2351fe142222b625c740149 Mon Sep 17 00:00:00 2001
From: Ding Tianhong <dingtianhong@huawei.com>
Date: Sat, 7 Dec 2013 22:12:05 +0800
Subject: bridge: flush br's address entry in fdb when remove the

 bridge dev

When the following commands are executed:

brctl addbr br0
ifconfig br0 hw ether <addr>
rmmod bridge

The calltrace will occur:

[  563.312114] device eth1 left promiscuous mode
[  563.312188] br0: port 1(eth1) entered disabled state
[  563.468190] kmem_cache_destroy bridge_fdb_cache: Slab cache still has objects
[  563.468197] CPU: 6 PID: 6982 Comm: rmmod Tainted: G           O 3.12.0-0.7-default+ #9
[  563.468199] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007
[  563.468200]  0000000000000880 ffff88010f111e98 ffffffff814d1c92 ffff88010f111eb8
[  563.468204]  ffffffff81148efd ffff88010f111eb8 0000000000000000 ffff88010f111ec8
[  563.468206]  ffffffffa062a270 ffff88010f111ed8 ffffffffa063ac76 ffff88010f111f78
[  563.468209] Call Trace:
[  563.468218]  [<ffffffff814d1c92>] dump_stack+0x6a/0x78
[  563.468234]  [<ffffffff81148efd>] kmem_cache_destroy+0xfd/0x100
[  563.468242]  [<ffffffffa062a270>] br_fdb_fini+0x10/0x20 [bridge]
[  563.468247]  [<ffffffffa063ac76>] br_deinit+0x4e/0x50 [bridge]
[  563.468254]  [<ffffffff810c7dc9>] SyS_delete_module+0x199/0x2b0
[  563.468259]  [<ffffffff814e0922>] system_call_fastpath+0x16/0x1b
[  570.377958] Bridge firewalling registered

--------------------------- cut here -------------------------------

The reason is that when the bridge dev's address is changed, the
br_fdb_change_mac_address() will add new address in fdb, but when
the bridge was removed, the address entry in the fdb did not free,
the bridge_fdb_cache still has objects when destroy the cache, Fix
this by flushing the bridge address entry when removing the bridge.

v2: according to the Toshiaki Makita and Vlad's suggestion, I only
    delete the vlan0 entry, it still have a leak here if the vlan id
    is other number, so I need to call fdb_delete_by_port(br, NULL, 1)
    to flush all entries whose dst is NULL for the bridge.

Suggested-by: Toshiaki Makita <toshiaki.makita1@gmail.com>
Suggested-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/bridge/br_if.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index 6e6194fcd88e..4bf02adb5dc2 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -172,6 +172,8 @@ void br_dev_delete(struct net_device *dev, struct list_head *head)
 		del_nbp(p);
 	}
 
+	br_fdb_delete_by_port(br, NULL, 1);
+
 	br_vlan_flush(br);
 	del_timer_sync(&br->gc_timer);
 
-- 
cgit 


From 4a82fd7c4e78a1b7a224f9ae8bb7e1fd95f670e0 Mon Sep 17 00:00:00 2001
From: Andy Adamson <andros@netapp.com>
Date: Fri, 15 Nov 2013 16:36:16 -0500
Subject: NFSv4 wait on recovery for async session errors

When the state manager is processing the NFS4CLNT_DELEGRETURN flag, session
draining is off, but DELEGRETURN can still get a session error.
The async handler calls nfs4_schedule_session_recovery returns -EAGAIN, and
the DELEGRETURN done then restarts the RPC task in the prepare state.
With the state manager still processing the NFS4CLNT_DELEGRETURN flag with
session draining off, these DELEGRETURNs will cycle with errors filling up the
session slots.

This prevents OPEN reclaims (from nfs_delegation_claim_opens) required by the
NFS4CLNT_DELEGRETURN state manager processing from completing, hanging the
state manager in the __rpc_wait_for_completion_task in nfs4_run_open_task
as seen in this kernel thread dump:

kernel: 4.12.32.53-ma D 0000000000000000     0  3393      2 0x00000000
kernel: ffff88013995fb60 0000000000000046 ffff880138cc5400 ffff88013a9df140
kernel: ffff8800000265c0 ffffffff8116eef0 ffff88013fc10080 0000000300000001
kernel: ffff88013a4ad058 ffff88013995ffd8 000000000000fbc8 ffff88013a4ad058
kernel: Call Trace:
kernel: [<ffffffff8116eef0>] ? cache_alloc_refill+0x1c0/0x240
kernel: [<ffffffffa0358110>] ? rpc_wait_bit_killable+0x0/0xa0 [sunrpc]
kernel: [<ffffffffa0358152>] rpc_wait_bit_killable+0x42/0xa0 [sunrpc]
kernel: [<ffffffff8152914f>] __wait_on_bit+0x5f/0x90
kernel: [<ffffffffa0358110>] ? rpc_wait_bit_killable+0x0/0xa0 [sunrpc]
kernel: [<ffffffff815291f8>] out_of_line_wait_on_bit+0x78/0x90
kernel: [<ffffffff8109b520>] ? wake_bit_function+0x0/0x50
kernel: [<ffffffffa035810d>] __rpc_wait_for_completion_task+0x2d/0x30 [sunrpc]
kernel: [<ffffffffa040d44c>] nfs4_run_open_task+0x11c/0x160 [nfs]
kernel: [<ffffffffa04114e7>] nfs4_open_recover_helper+0x87/0x120 [nfs]
kernel: [<ffffffffa0411646>] nfs4_open_recover+0xc6/0x150 [nfs]
kernel: [<ffffffffa040cc6f>] ? nfs4_open_recoverdata_alloc+0x2f/0x60 [nfs]
kernel: [<ffffffffa0414e1a>] nfs4_open_delegation_recall+0x6a/0xa0 [nfs]
kernel: [<ffffffffa0424020>] nfs_end_delegation_return+0x120/0x2e0 [nfs]
kernel: [<ffffffff8109580f>] ? queue_work+0x1f/0x30
kernel: [<ffffffffa0424347>] nfs_client_return_marked_delegations+0xd7/0x110 [nfs]
kernel: [<ffffffffa04225d8>] nfs4_run_state_manager+0x548/0x620 [nfs]
kernel: [<ffffffffa0422090>] ? nfs4_run_state_manager+0x0/0x620 [nfs]
kernel: [<ffffffff8109b0f6>] kthread+0x96/0xa0
kernel: [<ffffffff8100c20a>] child_rip+0xa/0x20
kernel: [<ffffffff8109b060>] ? kthread+0x0/0xa0
kernel: [<ffffffff8100c200>] ? child_rip+0x0/0x20

The state manager can not therefore process the DELEGRETURN session errors.
Change the async handler to wait for recovery on session errors.

Signed-off-by: Andy Adamson <andros@netapp.com>
Cc: stable@vger.kernel.org
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4proc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 5ab33c0792df..1f4edfbb4a70 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4803,7 +4803,7 @@ nfs4_async_handle_error(struct rpc_task *task, const struct nfs_server *server,
 			dprintk("%s ERROR %d, Reset session\n", __func__,
 				task->tk_status);
 			nfs4_schedule_session_recovery(clp->cl_session, task->tk_status);
-			goto restart_call;
+			goto wait_on_recovery;
 #endif /* CONFIG_NFS_V4_1 */
 		case -NFS4ERR_DELAY:
 			nfs_inc_server_stats(server, NFSIOS_DELAY);
-- 
cgit 


From c97cf606e43b85a6cf158b810375dd77312024db Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Tue, 19 Nov 2013 16:34:14 -0500
Subject: NFSv4: Update list of irrecoverable errors on DELEGRETURN

If the DELEGRETURN errors out with something like NFS4ERR_BAD_STATEID
then there is no recovery possible. Just quit without returning an error.

Also, note that the client must not assume that the NFSv4 lease has been
renewed when it sees an error on DELEGRETURN.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
---
 fs/nfs/nfs4proc.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 1f4edfbb4a70..ca36d0d50b7d 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4988,11 +4988,17 @@ static void nfs4_delegreturn_done(struct rpc_task *task, void *calldata)
 
 	trace_nfs4_delegreturn_exit(&data->args, &data->res, task->tk_status);
 	switch (task->tk_status) {
-	case -NFS4ERR_STALE_STATEID:
-	case -NFS4ERR_EXPIRED:
 	case 0:
 		renew_lease(data->res.server, data->timestamp);
 		break;
+	case -NFS4ERR_ADMIN_REVOKED:
+	case -NFS4ERR_DELEG_REVOKED:
+	case -NFS4ERR_BAD_STATEID:
+	case -NFS4ERR_OLD_STATEID:
+	case -NFS4ERR_STALE_STATEID:
+	case -NFS4ERR_EXPIRED:
+		task->tk_status = 0;
+		break;
 	default:
 		if (nfs4_async_handle_error(task, data->res.server, NULL) ==
 				-EAGAIN) {
-- 
cgit 


From 1c283531115bda77a9b559271311c1983fbcffaa Mon Sep 17 00:00:00 2001
From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Date: Tue, 8 Oct 2013 16:38:53 +0200
Subject: ARM: at91: rm9200: switch back to clockevents_config_and_register
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

The timer code for at91rm9200 was already converted some time ago by
Shawn Guo in commit 838a2ae (ARM: use clockevents_config_and_register()
where possible) but because of a rounding issue in the timer core this
resulted in an easily reproducible oops. So it was reverted (commit
b7a8ca5 (ARM: at91: rm9200 fix time support)) which stopped the oops
from happening because min_delta_ns is increased by one in arch code
which stopped from problem from happening.

Now that the timer core problem is fixed (commit a4578ea (clockevents:
Sanitize ticks to nsec conversion)), we can switch back to the
clockevents_config_and_register helper.

Tested-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 arch/arm/mach-at91/at91rm9200_time.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-at91/at91rm9200_time.c b/arch/arm/mach-at91/at91rm9200_time.c
index f607deb40f4d..bc7b363a3083 100644
--- a/arch/arm/mach-at91/at91rm9200_time.c
+++ b/arch/arm/mach-at91/at91rm9200_time.c
@@ -174,7 +174,6 @@ clkevt32k_next_event(unsigned long delta, struct clock_event_device *dev)
 static struct clock_event_device clkevt = {
 	.name		= "at91_tick",
 	.features	= CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
-	.shift		= 32,
 	.rating		= 150,
 	.set_next_event	= clkevt32k_next_event,
 	.set_mode	= clkevt32k_mode,
@@ -265,11 +264,9 @@ void __init at91rm9200_timer_init(void)
 	at91_st_write(AT91_ST_RTMR, 1);
 
 	/* Setup timer clockevent, with minimum of two ticks (important!!) */
-	clkevt.mult = div_sc(AT91_SLOW_CLOCK, NSEC_PER_SEC, clkevt.shift);
-	clkevt.max_delta_ns = clockevent_delta2ns(AT91_ST_ALMV, &clkevt);
-	clkevt.min_delta_ns = clockevent_delta2ns(2, &clkevt) + 1;
 	clkevt.cpumask = cpumask_of(0);
-	clockevents_register_device(&clkevt);
+	clockevents_config_and_register(&clkevt, AT91_SLOW_CLOCK,
+					2, AT91_ST_ALMV);
 
 	/* register clocksource */
 	clocksource_register_hz(&clk32k, AT91_SLOW_CLOCK);
-- 
cgit 


From a4a5fc3b64cd553820d97667056506636eaaba77 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Fri, 8 Nov 2013 11:07:59 +0100
Subject: clocksource: sh_mtu2: Release clock when sh_mtu2_register() fails

Fix the probe error path to release the clock resource when the
sh_mtu2_register() call fails.

Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/clocksource/sh_mtu2.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c
index 4aac9ee0d0c0..e6cfb328eb2e 100644
--- a/drivers/clocksource/sh_mtu2.c
+++ b/drivers/clocksource/sh_mtu2.c
@@ -313,8 +313,15 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev)
 		goto err1;
 	}
 
-	return sh_mtu2_register(p, (char *)dev_name(&p->pdev->dev),
-				cfg->clockevent_rating);
+	ret = sh_mtu2_register(p, (char *)dev_name(&p->pdev->dev),
+			       cfg->clockevent_rating);
+	if (ret < 0)
+		goto err2;
+
+	return 0;
+
+ err2:
+	clk_put(p->clk);
  err1:
 	iounmap(p->mapbase);
  err0:
-- 
cgit 


From bd7549308eed47b3750b3dab692034a553e75663 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Fri, 8 Nov 2013 11:07:59 +0100
Subject: clocksource: sh_mtu2: Add clk_prepare/unprepare support

Prepare the clock at probe time, as there is no other appropriate place
in the driver where we're allowed to sleep.

Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/clocksource/sh_mtu2.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c
index e6cfb328eb2e..3cf12834681e 100644
--- a/drivers/clocksource/sh_mtu2.c
+++ b/drivers/clocksource/sh_mtu2.c
@@ -313,13 +313,18 @@ static int sh_mtu2_setup(struct sh_mtu2_priv *p, struct platform_device *pdev)
 		goto err1;
 	}
 
+	ret = clk_prepare(p->clk);
+	if (ret < 0)
+		goto err2;
+
 	ret = sh_mtu2_register(p, (char *)dev_name(&p->pdev->dev),
 			       cfg->clockevent_rating);
 	if (ret < 0)
-		goto err2;
+		goto err3;
 
 	return 0;
-
+ err3:
+	clk_unprepare(p->clk);
  err2:
 	clk_put(p->clk);
  err1:
-- 
cgit 


From 394a4486f009a184b58fc2f2435d6f5f800870bb Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Fri, 8 Nov 2013 11:07:59 +0100
Subject: clocksource: sh_tmu: Release clock when sh_tmu_register() fails

Fix the probe error path to release the clock resource when the
sh_tmu_register() call fails.

Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/clocksource/sh_tmu.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c
index 78b8dae49628..15978372c937 100644
--- a/drivers/clocksource/sh_tmu.c
+++ b/drivers/clocksource/sh_tmu.c
@@ -475,9 +475,16 @@ static int sh_tmu_setup(struct sh_tmu_priv *p, struct platform_device *pdev)
 	p->cs_enabled = false;
 	p->enable_count = 0;
 
-	return sh_tmu_register(p, (char *)dev_name(&p->pdev->dev),
-			       cfg->clockevent_rating,
-			       cfg->clocksource_rating);
+	ret = sh_tmu_register(p, (char *)dev_name(&p->pdev->dev),
+			      cfg->clockevent_rating,
+			      cfg->clocksource_rating);
+	if (ret < 0)
+		goto err2;
+
+	return 0;
+
+ err2:
+	clk_put(p->clk);
  err1:
 	iounmap(p->mapbase);
  err0:
-- 
cgit 


From 1c09eb3e2d761ffd152faa6b9d06caf560e7d445 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Fri, 8 Nov 2013 11:08:00 +0100
Subject: clocksource: sh_tmu: Add clk_prepare/unprepare support

Prepare the clock at probe time, as there is no other appropriate place
in the driver where we're allowed to sleep.

Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/clocksource/sh_tmu.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c
index 15978372c937..63557cda0a7d 100644
--- a/drivers/clocksource/sh_tmu.c
+++ b/drivers/clocksource/sh_tmu.c
@@ -472,6 +472,11 @@ static int sh_tmu_setup(struct sh_tmu_priv *p, struct platform_device *pdev)
 		ret = PTR_ERR(p->clk);
 		goto err1;
 	}
+
+	ret = clk_prepare(p->clk);
+	if (ret < 0)
+		goto err2;
+
 	p->cs_enabled = false;
 	p->enable_count = 0;
 
@@ -479,10 +484,12 @@ static int sh_tmu_setup(struct sh_tmu_priv *p, struct platform_device *pdev)
 			      cfg->clockevent_rating,
 			      cfg->clocksource_rating);
 	if (ret < 0)
-		goto err2;
+		goto err3;
 
 	return 0;
 
+ err3:
+	clk_unprepare(p->clk);
  err2:
 	clk_put(p->clk);
  err1:
-- 
cgit 


From 69794ad70cd3b600319f175fc0cbe7abd510791f Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Wed, 20 Nov 2013 12:57:19 -0500
Subject: NFSv4: close needs to handle NFS4ERR_ADMIN_REVOKED

Also ensure that we zero out the stateid mode when exiting

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/nfs4proc.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index ca36d0d50b7d..f01e2aa53210 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2518,9 +2518,8 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
 						     calldata->roc_barrier);
 			nfs_set_open_stateid(state, &calldata->res.stateid, 0);
 			renew_lease(server, calldata->timestamp);
-			nfs4_close_clear_stateid_flags(state,
-					calldata->arg.fmode);
 			break;
+		case -NFS4ERR_ADMIN_REVOKED:
 		case -NFS4ERR_STALE_STATEID:
 		case -NFS4ERR_OLD_STATEID:
 		case -NFS4ERR_BAD_STATEID:
@@ -2528,9 +2527,13 @@ static void nfs4_close_done(struct rpc_task *task, void *data)
 			if (calldata->arg.fmode == 0)
 				break;
 		default:
-			if (nfs4_async_handle_error(task, server, state) == -EAGAIN)
+			if (nfs4_async_handle_error(task, server, state) == -EAGAIN) {
 				rpc_restart_call_prepare(task);
+				goto out_release;
+			}
 	}
+	nfs4_close_clear_stateid_flags(state, calldata->arg.fmode);
+out_release:
 	nfs_release_seqid(calldata->arg.seqid);
 	nfs_refresh_inode(calldata->inode, calldata->res.fattr);
 	dprintk("%s: done, ret = %d!\n", __func__, task->tk_status);
-- 
cgit 


From b91da2d4ce896c324bdbf1a078dbbe2db9a35ef1 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Wed, 20 Nov 2013 22:14:58 +1100
Subject: powerpc/pseries: Fix endian issues in pseries EEH code

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/pseries/eeh_pseries.c | 21 ++++++++++++---------
 1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c
index 7fbc25b1813f..ccb633e077b1 100644
--- a/arch/powerpc/platforms/pseries/eeh_pseries.c
+++ b/arch/powerpc/platforms/pseries/eeh_pseries.c
@@ -189,8 +189,9 @@ static void *pseries_eeh_of_probe(struct device_node *dn, void *flag)
 	struct eeh_dev *edev;
 	struct eeh_pe pe;
 	struct pci_dn *pdn = PCI_DN(dn);
-	const u32 *class_code, *vendor_id, *device_id;
-	const u32 *regs;
+	const __be32 *classp, *vendorp, *devicep;
+	u32 class_code;
+	const __be32 *regs;
 	u32 pcie_flags;
 	int enable = 0;
 	int ret;
@@ -201,22 +202,24 @@ static void *pseries_eeh_of_probe(struct device_node *dn, void *flag)
 		return NULL;
 
 	/* Retrieve class/vendor/device IDs */
-	class_code = of_get_property(dn, "class-code", NULL);
-	vendor_id  = of_get_property(dn, "vendor-id", NULL);
-	device_id  = of_get_property(dn, "device-id", NULL);
+	classp = of_get_property(dn, "class-code", NULL);
+	vendorp = of_get_property(dn, "vendor-id", NULL);
+	devicep = of_get_property(dn, "device-id", NULL);
 
 	/* Skip for bad OF node or PCI-ISA bridge */
-	if (!class_code || !vendor_id || !device_id)
+	if (!classp || !vendorp || !devicep)
 		return NULL;
 	if (dn->type && !strcmp(dn->type, "isa"))
 		return NULL;
 
+	class_code = of_read_number(classp, 1);
+
 	/*
 	 * Update class code and mode of eeh device. We need
 	 * correctly reflects that current device is root port
 	 * or PCIe switch downstream port.
 	 */
-	edev->class_code = *class_code;
+	edev->class_code = class_code;
 	edev->pcie_cap = pseries_eeh_find_cap(dn, PCI_CAP_ID_EXP);
 	edev->mode &= 0xFFFFFF00;
 	if ((edev->class_code >> 8) == PCI_CLASS_BRIDGE_PCI) {
@@ -243,12 +246,12 @@ static void *pseries_eeh_of_probe(struct device_node *dn, void *flag)
 	/* Initialize the fake PE */
 	memset(&pe, 0, sizeof(struct eeh_pe));
 	pe.phb = edev->phb;
-	pe.config_addr = regs[0];
+	pe.config_addr = of_read_number(regs, 1);
 
 	/* Enable EEH on the device */
 	ret = eeh_ops->set_option(&pe, EEH_OPT_ENABLE);
 	if (!ret) {
-		edev->config_addr = regs[0];
+		edev->config_addr = of_read_number(regs, 1);
 		/* Retrieve PE address */
 		edev->pe_config_addr = eeh_ops->get_pe_addr(&pe);
 		pe.addr = edev->pe_config_addr;
-- 
cgit 


From e844b1eeae42dc93bf13e67812a95ee7b58be8c7 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Wed, 20 Nov 2013 22:14:59 +1100
Subject: pseries: Add H_SET_MODE to change exception endianness

On little endian builds call H_SET_MODE so exceptions have the
correct endianness. We need to reset the endian during kexec
so do that in the MMU hashtable clear callback.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/hvcall.h         |  2 ++
 arch/powerpc/include/asm/plpar_wrappers.h | 26 +++++++++++++++++++
 arch/powerpc/platforms/pseries/lpar.c     | 17 +++++++++++++
 arch/powerpc/platforms/pseries/setup.c    | 42 +++++++++++++++++++++++++++++++
 4 files changed, 87 insertions(+)

diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h
index 0c7f2bfcf134..d8b600b3f058 100644
--- a/arch/powerpc/include/asm/hvcall.h
+++ b/arch/powerpc/include/asm/hvcall.h
@@ -403,6 +403,8 @@ static inline unsigned long cmo_get_page_size(void)
 extern long pSeries_enable_reloc_on_exc(void);
 extern long pSeries_disable_reloc_on_exc(void);
 
+extern long pseries_big_endian_exceptions(void);
+
 #else
 
 #define pSeries_enable_reloc_on_exc()  do {} while (0)
diff --git a/arch/powerpc/include/asm/plpar_wrappers.h b/arch/powerpc/include/asm/plpar_wrappers.h
index a63b045e707c..12c32c5f533d 100644
--- a/arch/powerpc/include/asm/plpar_wrappers.h
+++ b/arch/powerpc/include/asm/plpar_wrappers.h
@@ -287,6 +287,32 @@ static inline long disable_reloc_on_exceptions(void) {
 	return plpar_set_mode(0, 3, 0, 0);
 }
 
+/*
+ * Take exceptions in big endian mode on this partition
+ *
+ * Note: this call has a partition wide scope and can take a while to complete.
+ * If it returns H_LONG_BUSY_* it should be retried periodically until it
+ * returns H_SUCCESS.
+ */
+static inline long enable_big_endian_exceptions(void)
+{
+	/* mflags = 0: big endian exceptions */
+	return plpar_set_mode(0, 4, 0, 0);
+}
+
+/*
+ * Take exceptions in little endian mode on this partition
+ *
+ * Note: this call has a partition wide scope and can take a while to complete.
+ * If it returns H_LONG_BUSY_* it should be retried periodically until it
+ * returns H_SUCCESS.
+ */
+static inline long enable_little_endian_exceptions(void)
+{
+	/* mflags = 1: little endian exceptions */
+	return plpar_set_mode(1, 4, 0, 0);
+}
+
 static inline long plapr_set_ciabr(unsigned long ciabr)
 {
 	return plpar_set_mode(0, 1, ciabr, 0);
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 356bc75ca74f..4fca3def9db9 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -245,6 +245,23 @@ static void pSeries_lpar_hptab_clear(void)
 					&(ptes[j].pteh), &(ptes[j].ptel));
 		}
 	}
+
+#ifdef __LITTLE_ENDIAN__
+	/* Reset exceptions to big endian */
+	if (firmware_has_feature(FW_FEATURE_SET_MODE)) {
+		long rc;
+
+		rc = pseries_big_endian_exceptions();
+		/*
+		 * At this point it is unlikely panic() will get anything
+		 * out to the user, but at least this will stop us from
+		 * continuing on further and creating an even more
+		 * difficult to debug situation.
+		 */
+		if (rc)
+			panic("Could not enable big endian exceptions");
+	}
+#endif
 }
 
 /*
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 1f97e2b87a62..c1f190858701 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -442,6 +442,32 @@ static void pSeries_machine_kexec(struct kimage *image)
 }
 #endif
 
+#ifdef __LITTLE_ENDIAN__
+long pseries_big_endian_exceptions(void)
+{
+	long rc;
+
+	while (1) {
+		rc = enable_big_endian_exceptions();
+		if (!H_IS_LONG_BUSY(rc))
+			return rc;
+		mdelay(get_longbusy_msecs(rc));
+	}
+}
+
+static long pseries_little_endian_exceptions(void)
+{
+	long rc;
+
+	while (1) {
+		rc = enable_little_endian_exceptions();
+		if (!H_IS_LONG_BUSY(rc))
+			return rc;
+		mdelay(get_longbusy_msecs(rc));
+	}
+}
+#endif
+
 static void __init pSeries_setup_arch(void)
 {
 	panic_timeout = 10;
@@ -698,6 +724,22 @@ static int __init pSeries_probe(void)
 	/* Now try to figure out if we are running on LPAR */
 	of_scan_flat_dt(pseries_probe_fw_features, NULL);
 
+#ifdef __LITTLE_ENDIAN__
+	if (firmware_has_feature(FW_FEATURE_SET_MODE)) {
+		long rc;
+		/*
+		 * Tell the hypervisor that we want our exceptions to
+		 * be taken in little endian mode. If this fails we don't
+		 * want to use BUG() because it will trigger an exception.
+		 */
+		rc = pseries_little_endian_exceptions();
+		if (rc) {
+			ppc_md.progress("H_SET_MODE LE exception fail", 0);
+			panic("Could not enable little endian exceptions");
+		}
+	}
+#endif
+
 	if (firmware_has_feature(FW_FEATURE_LPAR))
 		hpte_init_lpar();
 	else
-- 
cgit 


From 373c76d62240cd3c1a3af42440b0a73cb7296bda Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Wed, 20 Nov 2013 22:15:00 +1100
Subject: powerpc: Add TIF_ELF2ABI flag.

Little endian ppc64 is getting an exciting new ABI.  This is reflected
by the bottom two bits of e_flags in the ELF header:

	0 == legacy binaries (v1 ABI)
	1 == binaries using the old ABI (compiled with a new toolchain)
	2 == binaries using the new ABI.

We store this in a thread flag, because we need to set it in core
dumps and for signal delivery.  Our chief concern is that it doesn't
use function descriptors.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/elf.h         | 2 ++
 arch/powerpc/include/asm/thread_info.h | 9 +++++++++
 2 files changed, 11 insertions(+)

diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
index cc0655a702a7..6d0e2369fe81 100644
--- a/arch/powerpc/include/asm/elf.h
+++ b/arch/powerpc/include/asm/elf.h
@@ -86,6 +86,8 @@ typedef elf_vrregset_t elf_fpxregset_t;
 #ifdef __powerpc64__
 # define SET_PERSONALITY(ex)					\
 do {								\
+	if (((ex).e_flags & 0x3) == 2)				\
+		set_thread_flag(TIF_ELF2ABI);			\
 	if ((ex).e_ident[EI_CLASS] == ELFCLASS32)		\
 		set_thread_flag(TIF_32BIT);			\
 	else							\
diff --git a/arch/powerpc/include/asm/thread_info.h b/arch/powerpc/include/asm/thread_info.h
index ba7b1973866e..05a3030b4582 100644
--- a/arch/powerpc/include/asm/thread_info.h
+++ b/arch/powerpc/include/asm/thread_info.h
@@ -107,6 +107,9 @@ static inline struct thread_info *current_thread_info(void)
 #define TIF_EMULATE_STACK_STORE	16	/* Is an instruction emulation
 						for stack store? */
 #define TIF_MEMDIE		17	/* is terminating due to OOM killer */
+#if defined(CONFIG_PPC64)
+#define TIF_ELF2ABI		18	/* function descriptors must die! */
+#endif
 
 /* as above, but as bit values */
 #define _TIF_SYSCALL_TRACE	(1<<TIF_SYSCALL_TRACE)
@@ -185,6 +188,12 @@ static inline bool test_thread_local_flags(unsigned int flags)
 #define is_32bit_task()	(1)
 #endif
 
+#if defined(CONFIG_PPC64)
+#define is_elf2_task() (test_thread_flag(TIF_ELF2ABI))
+#else
+#define is_elf2_task() (0)
+#endif
+
 #endif	/* !__ASSEMBLY__ */
 
 #endif /* __KERNEL__ */
-- 
cgit 


From 918d03552e031dcbdaa2a22da3c2abff5952c38a Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Wed, 20 Nov 2013 22:15:01 +1100
Subject: powerpc: Set eflags correctly for ELF ABIv2 core dumps.

We leave it at zero (though it could be 1) for old tasks.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/elf.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
index 6d0e2369fe81..935b5e7a1436 100644
--- a/arch/powerpc/include/asm/elf.h
+++ b/arch/powerpc/include/asm/elf.h
@@ -31,6 +31,8 @@
 extern unsigned long randomize_et_dyn(unsigned long base);
 #define ELF_ET_DYN_BASE		(randomize_et_dyn(0x20000000))
 
+#define ELF_CORE_EFLAGS (is_elf2_task() ? 2 : 0)
+
 /*
  * Our registers are always unsigned longs, whether we're a 32 bit
  * process or 64 bit, on either a 64 bit or 32 bit kernel.
-- 
cgit 


From 94af3abf995b17f6a008b00152c94841242ec6c7 Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Wed, 20 Nov 2013 22:15:02 +1100
Subject: powerpc: ELF2 binaries launched directly.

No function descriptor, but we set r12 up and set TIF_RESTOREALL as it
normally isn't restored on return from syscall.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/process.c | 50 ++++++++++++++++++++++++++++++-------------
 1 file changed, 35 insertions(+), 15 deletions(-)

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 75c2d1009985..0650e18169f8 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1086,25 +1086,45 @@ void start_thread(struct pt_regs *regs, unsigned long start, unsigned long sp)
 	regs->msr = MSR_USER;
 #else
 	if (!is_32bit_task()) {
-		unsigned long entry, toc;
+		unsigned long entry;
 
-		/* start is a relocated pointer to the function descriptor for
-		 * the elf _start routine.  The first entry in the function
-		 * descriptor is the entry address of _start and the second
-		 * entry is the TOC value we need to use.
-		 */
-		__get_user(entry, (unsigned long __user *)start);
-		__get_user(toc, (unsigned long __user *)start+1);
+		if (is_elf2_task()) {
+			/* Look ma, no function descriptors! */
+			entry = start;
 
-		/* Check whether the e_entry function descriptor entries
-		 * need to be relocated before we can use them.
-		 */
-		if (load_addr != 0) {
-			entry += load_addr;
-			toc   += load_addr;
+			/*
+			 * Ulrich says:
+			 *   The latest iteration of the ABI requires that when
+			 *   calling a function (at its global entry point),
+			 *   the caller must ensure r12 holds the entry point
+			 *   address (so that the function can quickly
+			 *   establish addressability).
+			 */
+			regs->gpr[12] = start;
+			/* Make sure that's restored on entry to userspace. */
+			set_thread_flag(TIF_RESTOREALL);
+		} else {
+			unsigned long toc;
+
+			/* start is a relocated pointer to the function
+			 * descriptor for the elf _start routine.  The first
+			 * entry in the function descriptor is the entry
+			 * address of _start and the second entry is the TOC
+			 * value we need to use.
+			 */
+			__get_user(entry, (unsigned long __user *)start);
+			__get_user(toc, (unsigned long __user *)start+1);
+
+			/* Check whether the e_entry function descriptor entries
+			 * need to be relocated before we can use them.
+			 */
+			if (load_addr != 0) {
+				entry += load_addr;
+				toc   += load_addr;
+			}
+			regs->gpr[2] = toc;
 		}
 		regs->nip = entry;
-		regs->gpr[2] = toc;
 		regs->msr = MSR_USER64;
 	} else {
 		regs->nip = start;
-- 
cgit 


From d606b92aedb0542e60965e9058ab37efcebfaec6 Mon Sep 17 00:00:00 2001
From: Rusty Russell <rusty@rustcorp.com.au>
Date: Wed, 20 Nov 2013 22:15:03 +1100
Subject: powerpc: ELF2 binaries signal handling

For the ELFv2 ABI, the hander is the entry point, not a function descriptor.
We also need to set up r12, and fortunately the fast_exception_return
exit path restores r12 for us so nothing else is required.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/signal_64.c | 25 ++++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index b3c615764c9b..e66f67b8b9e6 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -701,12 +701,6 @@ badframe:
 int handle_rt_signal64(int signr, struct k_sigaction *ka, siginfo_t *info,
 		sigset_t *set, struct pt_regs *regs)
 {
-	/* Handler is *really* a pointer to the function descriptor for
-	 * the signal routine.  The first entry in the function
-	 * descriptor is the entry address of signal and the second
-	 * entry is the TOC value we need to use.
-	 */
-	func_descr_t __user *funct_desc_ptr;
 	struct rt_sigframe __user *frame;
 	unsigned long newsp = 0;
 	long err = 0;
@@ -766,19 +760,32 @@ int handle_rt_signal64(int signr, struct k_sigaction *ka, siginfo_t *info,
 			goto badframe;
 		regs->link = (unsigned long) &frame->tramp[0];
 	}
-	funct_desc_ptr = (func_descr_t __user *) ka->sa.sa_handler;
 
 	/* Allocate a dummy caller frame for the signal handler. */
 	newsp = ((unsigned long)frame) - __SIGNAL_FRAMESIZE;
 	err |= put_user(regs->gpr[1], (unsigned long __user *)newsp);
 
 	/* Set up "regs" so we "return" to the signal handler. */
-	err |= get_user(regs->nip, &funct_desc_ptr->entry);
+	if (is_elf2_task()) {
+		regs->nip = (unsigned long) ka->sa.sa_handler;
+		regs->gpr[12] = regs->nip;
+	} else {
+		/* Handler is *really* a pointer to the function descriptor for
+		 * the signal routine.  The first entry in the function
+		 * descriptor is the entry address of signal and the second
+		 * entry is the TOC value we need to use.
+		 */
+		func_descr_t __user *funct_desc_ptr =
+			(func_descr_t __user *) ka->sa.sa_handler;
+
+		err |= get_user(regs->nip, &funct_desc_ptr->entry);
+		err |= get_user(regs->gpr[2], &funct_desc_ptr->toc);
+	}
+
 	/* enter the signal handler in native-endian mode */
 	regs->msr &= ~MSR_LE;
 	regs->msr |= (MSR_KERNEL & MSR_LE);
 	regs->gpr[1] = newsp;
-	err |= get_user(regs->gpr[2], &funct_desc_ptr->toc);
 	regs->gpr[3] = signr;
 	regs->result = 0;
 	if (ka->sa.sa_flags & SA_SIGINFO) {
-- 
cgit 


From b2ca8c895e711b10d6f28b26248358bfa2f354ad Mon Sep 17 00:00:00 2001
From: Alistair Popple <alistair@popple.id.au>
Date: Wed, 20 Nov 2013 22:15:04 +1100
Subject: powerpc: Don't use ELFv2 ABI to build the kernel

The kernel doesn't build correctly using the ELFv2 ABI.  This patch
ensures that the ELFv1 ABI is used when building a kernel with an
ELFv2 enabled compiler.

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 607acf54a425..8a2463670a5b 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -111,6 +111,7 @@ endif
 endif
 
 CFLAGS-$(CONFIG_PPC64)	:= -mtraceback=no -mcall-aixdesc
+CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mabi=elfv1)
 CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mcmodel=medium,-mminimal-toc)
 CFLAGS-$(CONFIG_PPC64)	+= $(call cc-option,-mno-pointers-to-nested-functions)
 CFLAGS-$(CONFIG_PPC32)	:= -ffixed-r2 $(MULTIPLEWORD)
-- 
cgit 


From 7c105b63bd9887f10ec281b0020492e7c774d0fc Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Wed, 20 Nov 2013 22:15:05 +1100
Subject: powerpc: Add CONFIG_CPU_LITTLE_ENDIAN kernel config option.

With the little endian support merged, we can add the
CONFIG_CPU_LITTLE_ENDIAN kernel config option.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/Kconfig.cputype | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index c2a566fb8bb8..132f8726a257 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -403,3 +403,14 @@ config PPC_DOORBELL
 	default n
 
 endmenu
+
+config CPU_LITTLE_ENDIAN
+	bool "Build little endian kernel"
+	default n
+	help
+	  This option selects whether a big endian or little endian kernel will
+	  be built.
+
+	  Note that if cross compiling a little endian kernel,
+	  CROSS_COMPILE must point to a toolchain capable of targeting
+	  little endian powerpc.
-- 
cgit 


From f53e462e907cbaed29c49c0f10f5b8f614e1bf1d Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Wed, 20 Nov 2013 22:15:06 +1100
Subject: powerpc: Add pseries_le_defconfig

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/configs/pseries_le_defconfig | 352 ++++++++++++++++++++++++++++++
 1 file changed, 352 insertions(+)
 create mode 100644 arch/powerpc/configs/pseries_le_defconfig

diff --git a/arch/powerpc/configs/pseries_le_defconfig b/arch/powerpc/configs/pseries_le_defconfig
new file mode 100644
index 000000000000..62771e0adb7c
--- /dev/null
+++ b/arch/powerpc/configs/pseries_le_defconfig
@@ -0,0 +1,352 @@
+CONFIG_PPC64=y
+CONFIG_ALTIVEC=y
+CONFIG_VSX=y
+CONFIG_SMP=y
+CONFIG_NR_CPUS=2048
+CONFIG_CPU_LITTLE_ENDIAN=y
+CONFIG_SYSVIPC=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_AUDIT=y
+CONFIG_AUDITSYSCALL=y
+CONFIG_IRQ_DOMAIN_DEBUG=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_DELAY_ACCT=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_CGROUPS=y
+CONFIG_CGROUP_FREEZER=y
+CONFIG_CGROUP_DEVICE=y
+CONFIG_CPUSETS=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_BLK_DEV_INITRD=y
+# CONFIG_COMPAT_BRK is not set
+CONFIG_PROFILING=y
+CONFIG_OPROFILE=y
+CONFIG_KPROBES=y
+CONFIG_JUMP_LABEL=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODVERSIONS=y
+CONFIG_MODULE_SRCVERSION_ALL=y
+CONFIG_PARTITION_ADVANCED=y
+CONFIG_PPC_SPLPAR=y
+CONFIG_SCANLOG=m
+CONFIG_PPC_SMLPAR=y
+CONFIG_DTL=y
+# CONFIG_PPC_PMAC is not set
+CONFIG_RTAS_FLASH=m
+CONFIG_IBMEBUS=y
+CONFIG_HZ_100=y
+CONFIG_BINFMT_MISC=m
+CONFIG_PPC_TRANSACTIONAL_MEM=y
+CONFIG_KEXEC=y
+CONFIG_IRQ_ALL_CPUS=y
+CONFIG_MEMORY_HOTPLUG=y
+CONFIG_MEMORY_HOTREMOVE=y
+CONFIG_CMA=y
+CONFIG_PPC_64K_PAGES=y
+CONFIG_PPC_SUBPAGE_PROT=y
+CONFIG_SCHED_SMT=y
+CONFIG_HOTPLUG_PCI=y
+CONFIG_HOTPLUG_PCI_RPA=m
+CONFIG_HOTPLUG_PCI_RPA_DLPAR=m
+CONFIG_PACKET=y
+CONFIG_UNIX=y
+CONFIG_XFRM_USER=m
+CONFIG_NET_KEY=m
+CONFIG_INET=y
+CONFIG_IP_MULTICAST=y
+CONFIG_NET_IPIP=y
+CONFIG_SYN_COOKIES=y
+CONFIG_INET_AH=m
+CONFIG_INET_ESP=m
+CONFIG_INET_IPCOMP=m
+# CONFIG_IPV6 is not set
+CONFIG_NETFILTER=y
+CONFIG_NF_CONNTRACK=m
+CONFIG_NF_CONNTRACK_EVENTS=y
+CONFIG_NF_CT_PROTO_UDPLITE=m
+CONFIG_NF_CONNTRACK_FTP=m
+CONFIG_NF_CONNTRACK_IRC=m
+CONFIG_NF_CONNTRACK_TFTP=m
+CONFIG_NF_CT_NETLINK=m
+CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m
+CONFIG_NETFILTER_XT_TARGET_CONNMARK=m
+CONFIG_NETFILTER_XT_TARGET_MARK=m
+CONFIG_NETFILTER_XT_TARGET_NFLOG=m
+CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m
+CONFIG_NETFILTER_XT_TARGET_TCPMSS=m
+CONFIG_NETFILTER_XT_MATCH_COMMENT=m
+CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m
+CONFIG_NETFILTER_XT_MATCH_CONNLIMIT=m
+CONFIG_NETFILTER_XT_MATCH_CONNMARK=m
+CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m
+CONFIG_NETFILTER_XT_MATCH_DCCP=m
+CONFIG_NETFILTER_XT_MATCH_DSCP=m
+CONFIG_NETFILTER_XT_MATCH_ESP=m
+CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m
+CONFIG_NETFILTER_XT_MATCH_HELPER=m
+CONFIG_NETFILTER_XT_MATCH_IPRANGE=m
+CONFIG_NETFILTER_XT_MATCH_LENGTH=m
+CONFIG_NETFILTER_XT_MATCH_LIMIT=m
+CONFIG_NETFILTER_XT_MATCH_MAC=m
+CONFIG_NETFILTER_XT_MATCH_MARK=m
+CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m
+CONFIG_NETFILTER_XT_MATCH_OWNER=m
+CONFIG_NETFILTER_XT_MATCH_POLICY=m
+CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m
+CONFIG_NETFILTER_XT_MATCH_QUOTA=m
+CONFIG_NETFILTER_XT_MATCH_RATEEST=m
+CONFIG_NETFILTER_XT_MATCH_REALM=m
+CONFIG_NETFILTER_XT_MATCH_RECENT=m
+CONFIG_NETFILTER_XT_MATCH_SCTP=m
+CONFIG_NETFILTER_XT_MATCH_STATE=m
+CONFIG_NETFILTER_XT_MATCH_STATISTIC=m
+CONFIG_NETFILTER_XT_MATCH_STRING=m
+CONFIG_NETFILTER_XT_MATCH_TCPMSS=m
+CONFIG_NETFILTER_XT_MATCH_TIME=m
+CONFIG_NETFILTER_XT_MATCH_U32=m
+CONFIG_NF_CONNTRACK_IPV4=m
+CONFIG_IP_NF_IPTABLES=m
+CONFIG_IP_NF_MATCH_AH=m
+CONFIG_IP_NF_MATCH_ECN=m
+CONFIG_IP_NF_MATCH_TTL=m
+CONFIG_IP_NF_FILTER=m
+CONFIG_IP_NF_TARGET_REJECT=m
+CONFIG_IP_NF_TARGET_ULOG=m
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_PROC_DEVICETREE=y
+CONFIG_PARPORT=m
+CONFIG_PARPORT_PC=m
+CONFIG_BLK_DEV_FD=m
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_NBD=m
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_SIZE=65536
+CONFIG_VIRTIO_BLK=m
+CONFIG_IDE=y
+CONFIG_BLK_DEV_IDECD=y
+CONFIG_BLK_DEV_GENERIC=y
+CONFIG_BLK_DEV_AMD74XX=y
+CONFIG_BLK_DEV_SD=y
+CONFIG_CHR_DEV_ST=y
+CONFIG_BLK_DEV_SR=y
+CONFIG_BLK_DEV_SR_VENDOR=y
+CONFIG_CHR_DEV_SG=y
+CONFIG_SCSI_MULTI_LUN=y
+CONFIG_SCSI_CONSTANTS=y
+CONFIG_SCSI_FC_ATTRS=y
+CONFIG_SCSI_CXGB3_ISCSI=m
+CONFIG_SCSI_CXGB4_ISCSI=m
+CONFIG_SCSI_BNX2_ISCSI=m
+CONFIG_BE2ISCSI=m
+CONFIG_SCSI_MPT2SAS=m
+CONFIG_SCSI_IBMVSCSI=y
+CONFIG_SCSI_IBMVFC=m
+CONFIG_SCSI_SYM53C8XX_2=y
+CONFIG_SCSI_SYM53C8XX_DMA_ADDRESSING_MODE=0
+CONFIG_SCSI_IPR=y
+CONFIG_SCSI_QLA_FC=m
+CONFIG_SCSI_QLA_ISCSI=m
+CONFIG_SCSI_LPFC=m
+CONFIG_SCSI_VIRTIO=m
+CONFIG_SCSI_DH=m
+CONFIG_SCSI_DH_RDAC=m
+CONFIG_SCSI_DH_ALUA=m
+CONFIG_ATA=y
+# CONFIG_ATA_SFF is not set
+CONFIG_MD=y
+CONFIG_BLK_DEV_MD=y
+CONFIG_MD_LINEAR=y
+CONFIG_MD_RAID0=y
+CONFIG_MD_RAID1=y
+CONFIG_MD_RAID10=m
+CONFIG_MD_RAID456=m
+CONFIG_MD_MULTIPATH=m
+CONFIG_MD_FAULTY=m
+CONFIG_BLK_DEV_DM=y
+CONFIG_DM_CRYPT=m
+CONFIG_DM_SNAPSHOT=m
+CONFIG_DM_MIRROR=m
+CONFIG_DM_ZERO=m
+CONFIG_DM_MULTIPATH=m
+CONFIG_DM_MULTIPATH_QL=m
+CONFIG_DM_MULTIPATH_ST=m
+CONFIG_DM_UEVENT=y
+CONFIG_BONDING=m
+CONFIG_DUMMY=m
+CONFIG_NETCONSOLE=y
+CONFIG_NETPOLL_TRAP=y
+CONFIG_TUN=m
+CONFIG_VIRTIO_NET=m
+CONFIG_VORTEX=y
+CONFIG_ACENIC=m
+CONFIG_ACENIC_OMIT_TIGON_I=y
+CONFIG_PCNET32=y
+CONFIG_TIGON3=y
+CONFIG_CHELSIO_T1=m
+CONFIG_BE2NET=m
+CONFIG_S2IO=m
+CONFIG_IBMVETH=y
+CONFIG_EHEA=y
+CONFIG_E100=y
+CONFIG_E1000=y
+CONFIG_E1000E=y
+CONFIG_IXGB=m
+CONFIG_IXGBE=m
+CONFIG_MLX4_EN=m
+CONFIG_MYRI10GE=m
+CONFIG_QLGE=m
+CONFIG_NETXEN_NIC=m
+CONFIG_PPP=m
+CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
+CONFIG_PPPOE=m
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_SYNC_TTY=m
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_INPUT_EVDEV=m
+CONFIG_INPUT_MISC=y
+CONFIG_INPUT_PCSPKR=m
+# CONFIG_SERIO_SERPORT is not set
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_ICOM=m
+CONFIG_SERIAL_JSM=m
+CONFIG_HVC_CONSOLE=y
+CONFIG_HVC_RTAS=y
+CONFIG_HVCS=m
+CONFIG_VIRTIO_CONSOLE=m
+CONFIG_IBM_BSR=m
+CONFIG_GEN_RTC=y
+CONFIG_RAW_DRIVER=y
+CONFIG_MAX_RAW_DEVS=1024
+CONFIG_FB=y
+CONFIG_FIRMWARE_EDID=y
+CONFIG_FB_OF=y
+CONFIG_FB_MATROX=y
+CONFIG_FB_MATROX_MILLENIUM=y
+CONFIG_FB_MATROX_MYSTIQUE=y
+CONFIG_FB_MATROX_G=y
+CONFIG_FB_RADEON=y
+CONFIG_FB_IBM_GXT4500=y
+CONFIG_LCD_PLATFORM=m
+# CONFIG_VGA_CONSOLE is not set
+CONFIG_FRAMEBUFFER_CONSOLE=y
+CONFIG_LOGO=y
+CONFIG_HID_GYRATION=y
+CONFIG_HID_PANTHERLORD=y
+CONFIG_HID_PETALYNX=y
+CONFIG_HID_SAMSUNG=y
+CONFIG_HID_SUNPLUS=y
+CONFIG_USB_HIDDEV=y
+CONFIG_USB=y
+CONFIG_USB_MON=m
+CONFIG_USB_EHCI_HCD=y
+# CONFIG_USB_EHCI_HCD_PPC_OF is not set
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_STORAGE=m
+CONFIG_INFINIBAND=m
+CONFIG_INFINIBAND_USER_MAD=m
+CONFIG_INFINIBAND_USER_ACCESS=m
+CONFIG_INFINIBAND_MTHCA=m
+CONFIG_INFINIBAND_EHCA=m
+CONFIG_INFINIBAND_CXGB3=m
+CONFIG_INFINIBAND_CXGB4=m
+CONFIG_MLX4_INFINIBAND=m
+CONFIG_INFINIBAND_IPOIB=m
+CONFIG_INFINIBAND_IPOIB_CM=y
+CONFIG_INFINIBAND_SRP=m
+CONFIG_INFINIBAND_ISER=m
+CONFIG_VIRTIO_PCI=m
+CONFIG_VIRTIO_BALLOON=m
+CONFIG_EXT2_FS=y
+CONFIG_EXT2_FS_XATTR=y
+CONFIG_EXT2_FS_POSIX_ACL=y
+CONFIG_EXT2_FS_SECURITY=y
+CONFIG_EXT2_FS_XIP=y
+CONFIG_EXT3_FS=y
+CONFIG_EXT3_FS_POSIX_ACL=y
+CONFIG_EXT3_FS_SECURITY=y
+CONFIG_EXT4_FS=y
+CONFIG_EXT4_FS_POSIX_ACL=y
+CONFIG_EXT4_FS_SECURITY=y
+CONFIG_REISERFS_FS=y
+CONFIG_REISERFS_FS_XATTR=y
+CONFIG_REISERFS_FS_POSIX_ACL=y
+CONFIG_REISERFS_FS_SECURITY=y
+CONFIG_JFS_FS=m
+CONFIG_JFS_POSIX_ACL=y
+CONFIG_JFS_SECURITY=y
+CONFIG_XFS_FS=m
+CONFIG_XFS_POSIX_ACL=y
+CONFIG_BTRFS_FS=m
+CONFIG_BTRFS_FS_POSIX_ACL=y
+CONFIG_NILFS2_FS=m
+CONFIG_AUTOFS4_FS=m
+CONFIG_FUSE_FS=m
+CONFIG_ISO9660_FS=y
+CONFIG_UDF_FS=m
+CONFIG_MSDOS_FS=y
+CONFIG_VFAT_FS=y
+CONFIG_PROC_KCORE=y
+CONFIG_TMPFS=y
+CONFIG_TMPFS_POSIX_ACL=y
+CONFIG_HUGETLBFS=y
+CONFIG_CRAMFS=m
+CONFIG_SQUASHFS=m
+CONFIG_SQUASHFS_XATTR=y
+CONFIG_SQUASHFS_LZO=y
+CONFIG_SQUASHFS_XZ=y
+CONFIG_PSTORE=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3_ACL=y
+CONFIG_NFS_V4=y
+CONFIG_NFSD=m
+CONFIG_NFSD_V3_ACL=y
+CONFIG_NFSD_V4=y
+CONFIG_CIFS=m
+CONFIG_CIFS_XATTR=y
+CONFIG_CIFS_POSIX=y
+CONFIG_NLS_DEFAULT="utf8"
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_ASCII=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_NLS_UTF8=y
+CONFIG_CRC_T10DIF=y
+CONFIG_MAGIC_SYSRQ=y
+CONFIG_DEBUG_KERNEL=y
+CONFIG_DEBUG_STACK_USAGE=y
+CONFIG_DEBUG_STACKOVERFLOW=y
+CONFIG_LOCKUP_DETECTOR=y
+CONFIG_LATENCYTOP=y
+CONFIG_SCHED_TRACER=y
+CONFIG_BLK_DEV_IO_TRACE=y
+CONFIG_CODE_PATCHING_SELFTEST=y
+CONFIG_FTR_FIXUP_SELFTEST=y
+CONFIG_MSI_BITMAP_SELFTEST=y
+CONFIG_XMON=y
+CONFIG_CRYPTO_TEST=m
+CONFIG_CRYPTO_PCBC=m
+CONFIG_CRYPTO_HMAC=y
+CONFIG_CRYPTO_MICHAEL_MIC=m
+CONFIG_CRYPTO_TGR192=m
+CONFIG_CRYPTO_WP512=m
+CONFIG_CRYPTO_ANUBIS=m
+CONFIG_CRYPTO_BLOWFISH=m
+CONFIG_CRYPTO_CAST6=m
+CONFIG_CRYPTO_KHAZAD=m
+CONFIG_CRYPTO_SALSA20=m
+CONFIG_CRYPTO_SERPENT=m
+CONFIG_CRYPTO_TEA=m
+CONFIG_CRYPTO_TWOFISH=m
+CONFIG_CRYPTO_LZO=m
+# CONFIG_CRYPTO_ANSI_CPRNG is not set
+CONFIG_CRYPTO_DEV_NX=y
+CONFIG_CRYPTO_DEV_NX_ENCRYPT=m
-- 
cgit 


From 280270828f108be56f0c486def58acabb070244f Mon Sep 17 00:00:00 2001
From: Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
Date: Thu, 21 Nov 2013 07:38:05 +1100
Subject: powerpc: Wrong DWARF CFI in the kernel vdso for little-endian / ELFv2

I've finally tracked down why my CR signal-unwind test case still
fails on little-endian.  The problem turned to be that the kernel
installs a signal trampoline in the vDSO, and provides a DWARF CFI
record for that trampoline.  This CFI describes the save location
for CR:

  rsave (70, 38*RSIZE + (RSIZE - CRSIZE))

which is correct for big-endian, but points to the wrong word on
little-endian.   This is wrong no matter which ABI.

In addition, for the ELFv2 ABI, we should not only provide a CFI
record for register 70 (cr2), but for all CR fields separately.
Strictly speaking, I guess this would mean providing two separate
vDSO images, one for ELFv1 processes and one for ELFv2 processes (or
maybe playing some tricks with conditional DWARF expressions).
However, having CFI records for the other CR fields in ELFv1 is not
actually wrong, they just will be ignored.   So it seems the simplest
fix would be just to always provide CFI for all the fields.

Signed-off-by: Ulrich Weigand <Ulrich.Weigand@de.ibm.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/vdso64/sigtramp.S | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/vdso64/sigtramp.S b/arch/powerpc/kernel/vdso64/sigtramp.S
index 45ea281e9a21..542c6f422e4d 100644
--- a/arch/powerpc/kernel/vdso64/sigtramp.S
+++ b/arch/powerpc/kernel/vdso64/sigtramp.S
@@ -142,6 +142,13 @@ V_FUNCTION_END(__kernel_sigtramp_rt64)
 /* Size of CR reg in DWARF unwind info. */
 #define CRSIZE	4
 
+/* Offset of CR reg within a full word. */
+#ifdef __LITTLE_ENDIAN__
+#define CROFF 0
+#else
+#define CROFF (RSIZE - CRSIZE)
+#endif
+
 /* This is the offset of the VMX reg pointer.  */
 #define VREGS	48*RSIZE+33*8
 
@@ -181,7 +188,14 @@ V_FUNCTION_END(__kernel_sigtramp_rt64)
   rsave (31, 31*RSIZE);							\
   rsave (67, 32*RSIZE);		/* ap, used as temp for nip */		\
   rsave (65, 36*RSIZE);		/* lr */				\
-  rsave (70, 38*RSIZE + (RSIZE - CRSIZE)) /* cr */
+  rsave (68, 38*RSIZE + CROFF);	/* cr fields */				\
+  rsave (69, 38*RSIZE + CROFF);						\
+  rsave (70, 38*RSIZE + CROFF);						\
+  rsave (71, 38*RSIZE + CROFF);						\
+  rsave (72, 38*RSIZE + CROFF);						\
+  rsave (73, 38*RSIZE + CROFF);						\
+  rsave (74, 38*RSIZE + CROFF);						\
+  rsave (75, 38*RSIZE + CROFF)
 
 /* Describe where the FP regs are saved.  */
 #define EH_FRAME_FP \
-- 
cgit 


From 2a46eed54a28c1e3de701ca4237ce4f8bebf14c6 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@ZenIV.linux.org.uk>
Date: Wed, 20 Nov 2013 22:16:36 +0000
Subject: Wrong page freed on preallocate_pmds() failure exit

Note that pmds[i] is simply uninitialized at that point...

Granted, it's very hard to hit (you need split page locks *and*
kmalloc(sizeof(spinlock_t), GFP_KERNEL) failing), but the code is
obviously bogus.

Introduced by commit 09ef4939850a ("x86: add missed
pgtable_pmd_page_ctor/dtor calls for preallocated pmds")

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 arch/x86/mm/pgtable.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index a7cccb6d7fec..36aa999b2631 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -209,7 +209,7 @@ static int preallocate_pmds(pmd_t *pmds[])
 		if (!pmd)
 			failed = true;
 		if (pmd && !pgtable_pmd_page_ctor(virt_to_page(pmd))) {
-			free_page((unsigned long)pmds[i]);
+			free_page((unsigned long)pmd);
 			pmd = NULL;
 			failed = true;
 		}
-- 
cgit 


From 2239aa3d15056e4be807eaa8d778b247156ce552 Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Wed, 20 Nov 2013 14:06:22 -0700
Subject: cpufreq: tegra: don't error target() when suspended

d4019f0a92ab "cpufreq: move freq change notifications to cpufreq core"
added code to the cpufreq core to print an error if a cpufreq driver's
.target() function returned an error. This exposed the fact that Tegra's
cpufreq driver returns an error when it is ignoring requests due to the
system being suspended.

Modify Tegra's .target() function not to return an error in this case;
this prevents the error prints. The argument is that since the suspend
hook can't and doesn't inform the cpufreq core when its requests will
be ignored, there's no way for the cpufreq core to squelch them, so it's
not an error for the requests to keep coming. This change make the Tegra
driver consistent with how the Exynos handles the same situation. Note
that s5pv210-cpufreq.c probably suffers from this same issue though.

Fixes: d4019f0a92ab (cpufreq: move freq change notifications to cpufreq core)
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/tegra-cpufreq.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/cpufreq/tegra-cpufreq.c b/drivers/cpufreq/tegra-cpufreq.c
index f42df7ec03c5..b7309c37033d 100644
--- a/drivers/cpufreq/tegra-cpufreq.c
+++ b/drivers/cpufreq/tegra-cpufreq.c
@@ -142,10 +142,8 @@ static int tegra_target(struct cpufreq_policy *policy, unsigned int index)
 
 	mutex_lock(&tegra_cpu_lock);
 
-	if (is_suspended) {
-		ret = -EBUSY;
+	if (is_suspended)
 		goto out;
-	}
 
 	freq = freq_table[index].frequency;
 
-- 
cgit 


From 2c575026fae6e63771bd2a4c1d407214a8096a89 Mon Sep 17 00:00:00 2001
From: Hong Zhiguo <zhiguohong@tencent.com>
Date: Wed, 20 Nov 2013 10:35:05 -0700
Subject: Update of blkg_stat and blkg_rwstat may happen in bh context. While
 u64_stats_fetch_retry is only preempt_disable on 32bit UP system. This is not
 enough to avoid preemption by bh and may read strange 64 bit value.

Signed-off-by: Hong Zhiguo <zhiguohong@tencent.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: stable@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-cgroup.h | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/block/blk-cgroup.h b/block/blk-cgroup.h
index 1610b22edf09..86154eab9523 100644
--- a/block/blk-cgroup.h
+++ b/block/blk-cgroup.h
@@ -435,9 +435,9 @@ static inline uint64_t blkg_stat_read(struct blkg_stat *stat)
 	uint64_t v;
 
 	do {
-		start = u64_stats_fetch_begin(&stat->syncp);
+		start = u64_stats_fetch_begin_bh(&stat->syncp);
 		v = stat->cnt;
-	} while (u64_stats_fetch_retry(&stat->syncp, start));
+	} while (u64_stats_fetch_retry_bh(&stat->syncp, start));
 
 	return v;
 }
@@ -508,9 +508,9 @@ static inline struct blkg_rwstat blkg_rwstat_read(struct blkg_rwstat *rwstat)
 	struct blkg_rwstat tmp;
 
 	do {
-		start = u64_stats_fetch_begin(&rwstat->syncp);
+		start = u64_stats_fetch_begin_bh(&rwstat->syncp);
 		tmp = *rwstat;
-	} while (u64_stats_fetch_retry(&rwstat->syncp, start));
+	} while (u64_stats_fetch_retry_bh(&rwstat->syncp, start));
 
 	return tmp;
 }
-- 
cgit 


From 8b2e9b712f6139df9c754af0d67fecc4bbc88545 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Wed, 20 Nov 2013 14:41:47 -0800
Subject: Revert "mm: create a separate slab for page->ptl allocation"

This reverts commit ea1e7ed33708c7a760419ff9ded0a6cb90586a50.

Al points out that while the commit *does* actually create a separate
slab for the page->ptl allocation, that slab is never actually used, and
the code continues to use kmalloc/kfree.

Damien Wyart points out that the original patch did have the conversion
to use kmem_cache_alloc/free, so it got lost somewhere on its way to me.

Revert the half-arsed attempt that didn't do anything.  If we really do
want the special slab (remember: this is all relevant just for debug
builds, so it's not necessarily all that critical) we might as well redo
the patch fully.

Reported-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Kirill A Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/mm.h | 9 ---------
 init/main.c        | 2 +-
 mm/memory.c        | 7 -------
 3 files changed, 1 insertion(+), 17 deletions(-)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0548eb201e05..1cedd000cf29 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1318,7 +1318,6 @@ static inline pmd_t *pmd_alloc(struct mm_struct *mm, pud_t *pud, unsigned long a
 
 #if USE_SPLIT_PTE_PTLOCKS
 #if BLOATED_SPINLOCKS
-void __init ptlock_cache_init(void);
 extern bool ptlock_alloc(struct page *page);
 extern void ptlock_free(struct page *page);
 
@@ -1327,7 +1326,6 @@ static inline spinlock_t *ptlock_ptr(struct page *page)
 	return page->ptl;
 }
 #else /* BLOATED_SPINLOCKS */
-static inline void ptlock_cache_init(void) {}
 static inline bool ptlock_alloc(struct page *page)
 {
 	return true;
@@ -1380,17 +1378,10 @@ static inline spinlock_t *pte_lockptr(struct mm_struct *mm, pmd_t *pmd)
 {
 	return &mm->page_table_lock;
 }
-static inline void ptlock_cache_init(void) {}
 static inline bool ptlock_init(struct page *page) { return true; }
 static inline void pte_lock_deinit(struct page *page) {}
 #endif /* USE_SPLIT_PTE_PTLOCKS */
 
-static inline void pgtable_init(void)
-{
-	ptlock_cache_init();
-	pgtable_cache_init();
-}
-
 static inline bool pgtable_page_ctor(struct page *page)
 {
 	inc_zone_page_state(page, NR_PAGETABLE);
diff --git a/init/main.c b/init/main.c
index 01573fdfa186..febc511e078a 100644
--- a/init/main.c
+++ b/init/main.c
@@ -476,7 +476,7 @@ static void __init mm_init(void)
 	mem_init();
 	kmem_cache_init();
 	percpu_init_late();
-	pgtable_init();
+	pgtable_cache_init();
 	vmalloc_init();
 }
 
diff --git a/mm/memory.c b/mm/memory.c
index 0409e8f43fa0..5d9025f3b3e1 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -4272,13 +4272,6 @@ void copy_user_huge_page(struct page *dst, struct page *src,
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_HUGETLBFS */
 
 #if USE_SPLIT_PTE_PTLOCKS && BLOATED_SPINLOCKS
-static struct kmem_cache *page_ptl_cachep;
-void __init ptlock_cache_init(void)
-{
-	page_ptl_cachep = kmem_cache_create("page->ptl", sizeof(spinlock_t), 0,
-			SLAB_PANIC, NULL);
-}
-
 bool ptlock_alloc(struct page *page)
 {
 	spinlock_t *ptl;
-- 
cgit 


From 3d3c6f54bccf0a621682d17e25cf22895a0c6e5a Mon Sep 17 00:00:00 2001
From: Sachin Kamat <sachin.kamat@linaro.org>
Date: Mon, 18 Nov 2013 17:21:26 +0530
Subject: cpufreq: exynos: Remove unwanted EXPORT_SYMBOL

The init functions are linked statically (no support for
dynamic loading) and have no other users. Hence remove
EXPORT_SYMBOL for these functions.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/exynos4210-cpufreq.c | 1 -
 drivers/cpufreq/exynos4x12-cpufreq.c | 1 -
 drivers/cpufreq/exynos5250-cpufreq.c | 1 -
 3 files changed, 3 deletions(-)

diff --git a/drivers/cpufreq/exynos4210-cpufreq.c b/drivers/cpufreq/exynos4210-cpufreq.c
index f2c75065ce19..dfd1643b0b2f 100644
--- a/drivers/cpufreq/exynos4210-cpufreq.c
+++ b/drivers/cpufreq/exynos4210-cpufreq.c
@@ -157,4 +157,3 @@ err_moutcore:
 	pr_debug("%s: failed initialization\n", __func__);
 	return -EINVAL;
 }
-EXPORT_SYMBOL(exynos4210_cpufreq_init);
diff --git a/drivers/cpufreq/exynos4x12-cpufreq.c b/drivers/cpufreq/exynos4x12-cpufreq.c
index 8683304ce62c..efad5e657f6f 100644
--- a/drivers/cpufreq/exynos4x12-cpufreq.c
+++ b/drivers/cpufreq/exynos4x12-cpufreq.c
@@ -211,4 +211,3 @@ err_moutcore:
 	pr_debug("%s: failed initialization\n", __func__);
 	return -EINVAL;
 }
-EXPORT_SYMBOL(exynos4x12_cpufreq_init);
diff --git a/drivers/cpufreq/exynos5250-cpufreq.c b/drivers/cpufreq/exynos5250-cpufreq.c
index 9fae466d7746..8feda86fe42c 100644
--- a/drivers/cpufreq/exynos5250-cpufreq.c
+++ b/drivers/cpufreq/exynos5250-cpufreq.c
@@ -236,4 +236,3 @@ err_moutcore:
 	pr_err("%s: failed initialization\n", __func__);
 	return -EINVAL;
 }
-EXPORT_SYMBOL(exynos5250_cpufreq_init);
-- 
cgit 


From e7cc5cf74544d97d7b69e2701595037474db1f96 Mon Sep 17 00:00:00 2001
From: Yinghai Lu <yinghai@kernel.org>
Date: Mon, 18 Nov 2013 17:02:45 -0700
Subject: PCI: Remove duplicate pci_disable_device() from pcie_portdrv_remove()

The pcie_portdrv .probe() method calls pci_enable_device() once, in
pcie_port_device_register(), but the .remove() method calls
pci_disable_device() twice, in pcie_port_device_remove() and in
pcie_portdrv_remove().

That causes a "disabling already-disabled device" warning when removing a
PCIe port device.  This happens all the time when removing Thunderbolt
devices, but is also easy to reproduce with, e.g.,
"echo 0000:00:1c.3 > /sys/bus/pci/drivers/pcieport/unbind"

This patch removes the disable from pcie_portdrv_remove().

[bhelgaas: changelog, tag for stable]
Reported-by: David Bulkow <David.Bulkow@stratus.com>
Reported-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
CC: stable@vger.kernel.org	# v2.6.32+
---
 drivers/pci/pcie/portdrv_pci.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c
index cd1e57e51aa7..0d8fdc48e642 100644
--- a/drivers/pci/pcie/portdrv_pci.c
+++ b/drivers/pci/pcie/portdrv_pci.c
@@ -223,7 +223,6 @@ static int pcie_portdrv_probe(struct pci_dev *dev,
 static void pcie_portdrv_remove(struct pci_dev *dev)
 {
 	pcie_port_device_remove(dev);
-	pci_disable_device(dev);
 }
 
 static int error_detected_iter(struct device *device, void *data)
-- 
cgit 


From b7ec699405f55667caeb46d96229d75bf33a83ad Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Tue, 19 Nov 2013 15:46:11 +0100
Subject: ARM: 7893/1: bitops: only emit .arch_extension mp if CONFIG_SMP
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Uwe reported a build failure when targetting a NOMMU platform with my
recent prefetch changes:

  arch/arm/lib/changebit.S: Assembler messages:
  arch/arm/lib/changebit.S:15: Error: architectural extension `mp' is
			not allowed for the current base architecture

This is due to use of the .arch_extension mp directive immediately prior
to an ALT_SMP(...) instruction. Whilst the ALT_SMP macro will expand to
nothing if !CONFIG_SMP, gas will still choke on the directive.

This patch fixes the issue by only emitting the sequence (including the
directive) if CONFIG_SMP=y.

Tested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/lib/bitops.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/lib/bitops.h b/arch/arm/lib/bitops.h
index e0c68d5bb7dc..52886b89706c 100644
--- a/arch/arm/lib/bitops.h
+++ b/arch/arm/lib/bitops.h
@@ -10,7 +10,7 @@ UNWIND(	.fnstart	)
 	and	r3, r0, #31		@ Get bit offset
 	mov	r0, r0, lsr #5
 	add	r1, r1, r0, lsl #2	@ Get word offset
-#if __LINUX_ARM_ARCH__ >= 7
+#if __LINUX_ARM_ARCH__ >= 7 && defined(CONFIG_SMP)
 	.arch_extension	mp
 	ALT_SMP(W(pldw)	[r1])
 	ALT_UP(W(nop))
-- 
cgit 


From 0c403462d6822227ea37fb0293a3e9f511e6929f Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Tue, 19 Nov 2013 15:46:17 +0100
Subject: ARM: 7894/1: kconfig: select GENERIC_CLOCKEVENTS if
 HAVE_ARM_ARCH_TIMER

The ARM architected timer driver doesn't compile without
GENERIC_CLOCKEVENTS selected, so ensure that we select it when building
for a platform that has the timer.

Without this patch, mach-virt fails to build without something like
mach-vexpress also selected.

Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 085b31ba287a..c2a372a6994f 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1496,6 +1496,7 @@ config HAVE_ARM_ARCH_TIMER
 	bool "Architected timer support"
 	depends on CPU_V7
 	select ARM_ARCH_TIMER
+	select GENERIC_CLOCKEVENTS
 	help
 	  This option enables support for the ARM architected timer
 
-- 
cgit 


From 77f7ce9a9f636daaa65731a833bae1311a7b80e5 Mon Sep 17 00:00:00 2001
From: Stephen Boyd <sboyd@codeaurora.org>
Date: Wed, 20 Nov 2013 12:02:03 -0800
Subject: clocksource: arm_arch_timer: Hide eventstream Kconfig on non-ARM

Pavel Machek reports that this config is exposed on x86 where the
ARM architected timers aren't even present. Make it depend on the
ARM architected timers being selected so that non-ARM builds
aren't asked about it.

Reported-by: Pavel Machek <pavel@ucw.cz>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
---
 drivers/clocksource/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index bdb953e15d2a..5c07a56962db 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -87,6 +87,7 @@ config ARM_ARCH_TIMER
 config ARM_ARCH_TIMER_EVTSTREAM
 	bool "Support for ARM architected timer event stream generation"
 	default y if ARM_ARCH_TIMER
+	depends on ARM_ARCH_TIMER
 	help
 	  This option enables support for event stream generation based on
 	  the ARM architected timer. It is used for waking up CPUs executing
-- 
cgit 


From bf898ec5cbd33be11147743bee27b66b10cb2f85 Mon Sep 17 00:00:00 2001
From: Gavin Shan <shangw@linux.vnet.ibm.com>
Date: Tue, 12 Nov 2013 14:49:21 +0800
Subject: powerpc/eeh: Enable PCI_COMMAND_MASTER for PCI bridges

On PHB3, we will fail to fetch IODA tables without PCI_COMMAND_MASTER
on PCI bridges. According to one experiment I had, the MSIx interrupts
didn't raise from the adapter without the bit applied to all upstream
PCI bridges including root port of the adapter. The patch forces to
have that bit enabled accordingly.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
CC: <stable@vger.kernel.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/eeh.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c
index 671302065347..4bd687d5e7aa 100644
--- a/arch/powerpc/kernel/eeh.c
+++ b/arch/powerpc/kernel/eeh.c
@@ -686,6 +686,15 @@ void eeh_save_bars(struct eeh_dev *edev)
 
 	for (i = 0; i < 16; i++)
 		eeh_ops->read_config(dn, i * 4, 4, &edev->config_space[i]);
+
+	/*
+	 * For PCI bridges including root port, we need enable bus
+	 * master explicitly. Otherwise, it can't fetch IODA table
+	 * entries correctly. So we cache the bit in advance so that
+	 * we can restore it after reset, either PHB range or PE range.
+	 */
+	if (edev->mode & EEH_DEV_BRIDGE)
+		edev->config_space[1] |= PCI_COMMAND_MASTER;
 }
 
 /**
-- 
cgit 


From 0b5381a61821d1c074c76e01b27bf5f69cf2dd01 Mon Sep 17 00:00:00 2001
From: Gavin Shan <shangw@linux.vnet.ibm.com>
Date: Tue, 12 Nov 2013 14:49:22 +0800
Subject: powerpc/eeh: More accurate log

This clarifies in the log whether the error is a global PHB error
or an individual PE being frozen.

Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/eeh_event.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/eeh_event.c b/arch/powerpc/kernel/eeh_event.c
index d27c5afc90ae..72d748b56c86 100644
--- a/arch/powerpc/kernel/eeh_event.c
+++ b/arch/powerpc/kernel/eeh_event.c
@@ -74,8 +74,13 @@ static int eeh_event_handler(void * dummy)
 		pe = event->pe;
 		if (pe) {
 			eeh_pe_state_mark(pe, EEH_PE_RECOVERING);
-			pr_info("EEH: Detected PCI bus error on PHB#%d-PE#%x\n",
-				 pe->phb->global_number, pe->addr);
+			if (pe->type & EEH_PE_PHB)
+				pr_info("EEH: Detected error on PHB#%d\n",
+					 pe->phb->global_number);
+			else
+				pr_info("EEH: Detected PCI bus error on "
+					"PHB#%d-PE#%x\n",
+					pe->phb->global_number, pe->addr);
 			eeh_handle_event(pe);
 			eeh_pe_state_clear(pe, EEH_PE_RECOVERING);
 		} else {
-- 
cgit 


From 95f715b08fa4a953771398d20cbe35a6803ea41d Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Thu, 14 Nov 2013 15:01:43 +1100
Subject: powerpc: Fix __get_user_pages_fast() irq handling

__get_user_pages_fast() may be called with interrupts disabled (see e.g.
get_futex_key() in kernel/futex.c) and therefore should use local_irq_save()
and local_irq_restore() instead of local_irq_disable()/enable().

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
CC: <stable@vger.kernel.org> [v3.12]
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/mm/gup.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/mm/gup.c b/arch/powerpc/mm/gup.c
index 6936547018b8..c5f734e20b0f 100644
--- a/arch/powerpc/mm/gup.c
+++ b/arch/powerpc/mm/gup.c
@@ -123,6 +123,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
 	struct mm_struct *mm = current->mm;
 	unsigned long addr, len, end;
 	unsigned long next;
+	unsigned long flags;
 	pgd_t *pgdp;
 	int nr = 0;
 
@@ -156,7 +157,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
 	 * So long as we atomically load page table pointers versus teardown,
 	 * we can follow the address down to the the page and take a ref on it.
 	 */
-	local_irq_disable();
+	local_irq_save(flags);
 
 	pgdp = pgd_offset(mm, addr);
 	do {
@@ -179,7 +180,7 @@ int __get_user_pages_fast(unsigned long start, int nr_pages, int write,
 			break;
 	} while (pgdp++, addr = next, addr != end);
 
-	local_irq_enable();
+	local_irq_restore(flags);
 
 	return nr;
 }
-- 
cgit 


From c54006491dde7d1b8050c5542716b751be92ed80 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Fri, 15 Nov 2013 15:41:19 +1100
Subject: powerpc: Print DAR and DSISR on machine check oopses

Machine check exceptions set DAR and DSISR, so print them in our
oops output.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/process.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 75c2d1009985..37c4103a8cff 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -864,7 +864,7 @@ void show_regs(struct pt_regs * regs)
 	trap = TRAP(regs);
 	if ((regs->trap != 0xc00) && cpu_has_feature(CPU_FTR_CFAR))
 		printk("CFAR: "REG"\n", regs->orig_gpr3);
-	if (trap == 0x300 || trap == 0x600)
+	if (trap == 0x200 || trap == 0x300 || trap == 0x600)
 #if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
 		printk("DEAR: "REG", ESR: "REG"\n", regs->dar, regs->dsisr);
 #else
-- 
cgit 


From 9db8bcfd73d4a18c0b3428c30557ccce1171d0af Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Fri, 15 Nov 2013 15:48:38 +1100
Subject: powerpc: Remove a few lines of oops output

We waste quite a few lines in our oops output:

...
MSR: 8000000000009032 <SF,EE,ME,IR,DR,RI>  CR: 28044024  XER: 00000000
SOFTE: 0
CFAR: 0000000000009088
DAR: 000000000000001c, DSISR: 40000000

GPR00: c0000000000c74f0 c00000037cc1b010 c000000000d2bb30 0000000000000000
...

We can do a better job here and remove 3 lines:

MSR: 8000000000009032 <SF,EE,ME,IR,DR,RI>  CR: 28044024  XER: 00000000
CFAR: 0000000000009088 DAR: 0000000000000010, DSISR: 40000000 SOFTE: 1
GPR00: c0000000000e3d10 c00000037cc2fda0 c000000000d2c3a8 0000000000000001

Also move PACATMSCRATCH up, it doesn't really belong in the stack
trace section.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/process.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 37c4103a8cff..373980ae52ad 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -858,17 +858,20 @@ void show_regs(struct pt_regs * regs)
 	printk("MSR: "REG" ", regs->msr);
 	printbits(regs->msr, msr_bits);
 	printk("  CR: %08lx  XER: %08lx\n", regs->ccr, regs->xer);
-#ifdef CONFIG_PPC64
-	printk("SOFTE: %ld\n", regs->softe);
-#endif
 	trap = TRAP(regs);
 	if ((regs->trap != 0xc00) && cpu_has_feature(CPU_FTR_CFAR))
-		printk("CFAR: "REG"\n", regs->orig_gpr3);
+		printk("CFAR: "REG" ", regs->orig_gpr3);
 	if (trap == 0x200 || trap == 0x300 || trap == 0x600)
 #if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
-		printk("DEAR: "REG", ESR: "REG"\n", regs->dar, regs->dsisr);
+		printk("DEAR: "REG" ESR: "REG" ", regs->dar, regs->dsisr);
 #else
-		printk("DAR: "REG", DSISR: %08lx\n", regs->dar, regs->dsisr);
+		printk("DAR: "REG" DSISR: %08lx ", regs->dar, regs->dsisr);
+#endif
+#ifdef CONFIG_PPC64
+	printk("SOFTE: %ld ", regs->softe);
+#endif
+#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
+	printk("\nPACATMSCRATCH: %016llx ", get_paca()->tm_scratch);
 #endif
 
 	for (i = 0;  i < 32;  i++) {
@@ -886,9 +889,6 @@ void show_regs(struct pt_regs * regs)
 	 */
 	printk("NIP ["REG"] %pS\n", regs->nip, (void *)regs->nip);
 	printk("LR ["REG"] %pS\n", regs->link, (void *)regs->link);
-#endif
-#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
-	printk("PACATMSCRATCH [%llx]\n", get_paca()->tm_scratch);
 #endif
 	show_stack(current, (unsigned long *) regs->gpr[1]);
 	if (!user_mode(regs))
-- 
cgit 


From 84b073868b9d9e754ae48b828337633d1b386482 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Sun, 17 Nov 2013 11:39:05 +1100
Subject: powerpc/pseries: Duplicate dtl entries sometimes sent to userspace

When reading from the dispatch trace log (dtl) userspace interface, I
sometimes see duplicate entries. One example:

# hexdump -C dtl.out

00000000  07 04 00 0c 00 00 48 44  00 00 00 00 00 00 00 00
00000010  00 0c a0 b4 16 83 6d 68  00 00 00 00 00 00 00 00
00000020  00 00 00 00 10 00 13 50  80 00 00 00 00 00 d0 32

00000030  07 04 00 0c 00 00 48 44  00 00 00 00 00 00 00 00
00000040  00 0c a0 b4 16 83 6d 68  00 00 00 00 00 00 00 00
00000050  00 00 00 00 10 00 13 50  80 00 00 00 00 00 d0 32

The problem is in scan_dispatch_log() where we call dtl_consumer()
but bail out before incrementing the index.

To fix this I moved dtl_consumer() after the timebase comparison.

Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/time.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 192b051df97e..b3b144121cc9 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -213,8 +213,6 @@ static u64 scan_dispatch_log(u64 stop_tb)
 	if (i == be64_to_cpu(vpa->dtl_idx))
 		return 0;
 	while (i < be64_to_cpu(vpa->dtl_idx)) {
-		if (dtl_consumer)
-			dtl_consumer(dtl, i);
 		dtb = be64_to_cpu(dtl->timebase);
 		tb_delta = be32_to_cpu(dtl->enqueue_to_dispatch_time) +
 			be32_to_cpu(dtl->ready_to_enqueue_time);
@@ -227,6 +225,8 @@ static u64 scan_dispatch_log(u64 stop_tb)
 		}
 		if (dtb > stop_tb)
 			break;
+		if (dtl_consumer)
+			dtl_consumer(dtl, i);
 		stolen += tb_delta;
 		++i;
 		++dtl;
-- 
cgit 


From 6d888d1ab0000dff8ea2901bcdf5d213f2a54e8b Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 18 Nov 2013 13:19:17 +1100
Subject: powerpc: Only print PACATMSCRATCH in oops when TM is active

If TM is not active there is no need to print PACATMSCRATCH
so we can save ourselves a line.

Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/process.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 373980ae52ad..6cd50ac12219 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -871,7 +871,8 @@ void show_regs(struct pt_regs * regs)
 	printk("SOFTE: %ld ", regs->softe);
 #endif
 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
-	printk("\nPACATMSCRATCH: %016llx ", get_paca()->tm_scratch);
+	if (MSR_TM_ACTIVE(regs->msr))
+		printk("\nPACATMSCRATCH: %016llx ", get_paca()->tm_scratch);
 #endif
 
 	for (i = 0;  i < 32;  i++) {
-- 
cgit 


From 5a049f14902982c26538250bdc8d54156d357252 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Mon, 18 Nov 2013 14:55:28 +1100
Subject: powerpc: ppc64 address space capped at 32TB, mmap randomisation
 disabled

Commit fba2369e6ceb (mm: use vm_unmapped_area() on powerpc architecture)
has a bug in slice_scan_available() where we compare an unsigned long
(high_slices) against a shifted int. As a result, comparisons against
the top 32 bits of high_slices (representing the top 32TB) always
returns 0 and the top of our mmap region is clamped at 32TB

This also breaks mmap randomisation since the randomised address is
always up near the top of the address space and it gets clamped down
to 32TB.

Cc: stable@vger.kernel.org # v3.10+
Signed-off-by: Anton Blanchard <anton@samba.org>
Acked-by: Michel Lespinasse <walken@google.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/mm/slice.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
index 3e99c149271a..7ce9cf3b6988 100644
--- a/arch/powerpc/mm/slice.c
+++ b/arch/powerpc/mm/slice.c
@@ -258,7 +258,7 @@ static bool slice_scan_available(unsigned long addr,
 		slice = GET_HIGH_SLICE_INDEX(addr);
 		*boundary_addr = (slice + end) ?
 			((slice + end) << SLICE_HIGH_SHIFT) : SLICE_LOW_TOP;
-		return !!(available.high_slices & (1u << slice));
+		return !!(available.high_slices & (1ul << slice));
 	}
 }
 
-- 
cgit 


From dc7a9bd3d0583bdc6ac291b4e1bf540dea398ea2 Mon Sep 17 00:00:00 2001
From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Date: Mon, 18 Nov 2013 14:50:18 +0530
Subject: powerpc: booke: Fix build failures
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

arch/powerpc/platforms/wsp/wsp.c: In function ‘wsp_probe_devices’:
arch/powerpc/platforms/wsp/wsp.c:76:3: error: implicit declaration of function ‘of_address_to_resource’ [-Werror=implicit-function-declaration]

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/wsp/chroma.c   | 1 +
 arch/powerpc/platforms/wsp/h8.c       | 1 +
 arch/powerpc/platforms/wsp/ics.c      | 2 ++
 arch/powerpc/platforms/wsp/opb_pic.c  | 2 ++
 arch/powerpc/platforms/wsp/psr2.c     | 1 +
 arch/powerpc/platforms/wsp/scom_wsp.c | 1 +
 arch/powerpc/platforms/wsp/wsp.c      | 1 +
 7 files changed, 9 insertions(+)

diff --git a/arch/powerpc/platforms/wsp/chroma.c b/arch/powerpc/platforms/wsp/chroma.c
index 8ef53bc2e70e..aaa46b353715 100644
--- a/arch/powerpc/platforms/wsp/chroma.c
+++ b/arch/powerpc/platforms/wsp/chroma.c
@@ -15,6 +15,7 @@
 #include <linux/of.h>
 #include <linux/smp.h>
 #include <linux/time.h>
+#include <linux/of_fdt.h>
 
 #include <asm/machdep.h>
 #include <asm/udbg.h>
diff --git a/arch/powerpc/platforms/wsp/h8.c b/arch/powerpc/platforms/wsp/h8.c
index d18e6cc19df3..a3c87f395750 100644
--- a/arch/powerpc/platforms/wsp/h8.c
+++ b/arch/powerpc/platforms/wsp/h8.c
@@ -10,6 +10,7 @@
 #include <linux/kernel.h>
 #include <linux/of.h>
 #include <linux/io.h>
+#include <linux/of_address.h>
 
 #include "wsp.h"
 
diff --git a/arch/powerpc/platforms/wsp/ics.c b/arch/powerpc/platforms/wsp/ics.c
index 2d3b1dd9571d..9cd92e645028 100644
--- a/arch/powerpc/platforms/wsp/ics.c
+++ b/arch/powerpc/platforms/wsp/ics.c
@@ -18,6 +18,8 @@
 #include <linux/smp.h>
 #include <linux/spinlock.h>
 #include <linux/types.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
diff --git a/arch/powerpc/platforms/wsp/opb_pic.c b/arch/powerpc/platforms/wsp/opb_pic.c
index cb565bf93650..3f6729807938 100644
--- a/arch/powerpc/platforms/wsp/opb_pic.c
+++ b/arch/powerpc/platforms/wsp/opb_pic.c
@@ -15,6 +15,8 @@
 #include <linux/of.h>
 #include <linux/slab.h>
 #include <linux/time.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
 
 #include <asm/reg_a2.h>
 #include <asm/irq.h>
diff --git a/arch/powerpc/platforms/wsp/psr2.c b/arch/powerpc/platforms/wsp/psr2.c
index 508ec8282b96..a87b414c766a 100644
--- a/arch/powerpc/platforms/wsp/psr2.c
+++ b/arch/powerpc/platforms/wsp/psr2.c
@@ -15,6 +15,7 @@
 #include <linux/of.h>
 #include <linux/smp.h>
 #include <linux/time.h>
+#include <linux/of_fdt.h>
 
 #include <asm/machdep.h>
 #include <asm/udbg.h>
diff --git a/arch/powerpc/platforms/wsp/scom_wsp.c b/arch/powerpc/platforms/wsp/scom_wsp.c
index 8928507affea..6538b4de34fc 100644
--- a/arch/powerpc/platforms/wsp/scom_wsp.c
+++ b/arch/powerpc/platforms/wsp/scom_wsp.c
@@ -14,6 +14,7 @@
 #include <linux/of.h>
 #include <linux/spinlock.h>
 #include <linux/types.h>
+#include <linux/of_address.h>
 
 #include <asm/cputhreads.h>
 #include <asm/reg_a2.h>
diff --git a/arch/powerpc/platforms/wsp/wsp.c b/arch/powerpc/platforms/wsp/wsp.c
index ddb6efe88914..58cd1f00e1ef 100644
--- a/arch/powerpc/platforms/wsp/wsp.c
+++ b/arch/powerpc/platforms/wsp/wsp.c
@@ -13,6 +13,7 @@
 #include <linux/smp.h>
 #include <linux/delay.h>
 #include <linux/time.h>
+#include <linux/of_address.h>
 
 #include <asm/scom.h>
 
-- 
cgit 


From c6102609289de268bcc6093e606483ea8bb35c84 Mon Sep 17 00:00:00 2001
From: Li Zhong <zhong@linux.vnet.ibm.com>
Date: Tue, 19 Nov 2013 16:11:37 +0800
Subject: powerpc/vio: Fix a dma_mask issue of vio

I encountered following issue:
[    0.283035] ibmvscsi 30000015: couldn't initialize event pool
[    5.688822] ibmvscsi: probe of 30000015 failed with error -1

which prevents the storage from being recognized, and the machine from
booting.

After some digging, it seems that it is caused by commit 4886c399da

as dma_mask pointer in viodev->dev is not set, so in
dma_set_mask_and_coherent(), dma_set_coherent_mask() is not called
because dma_set_mask(), which is dma_set_mask_pSeriesLP() returned EIO.
While before the commit, dma_set_coherent_mask() is always called.

I tried to replace dma_set_mask_and_coherent() with
dma_coerce_mask_and_coherent(), and the machine could boot again.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/vio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index e7d0c88f621a..76a64821f4a2 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -1419,7 +1419,7 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
 
 		/* needed to ensure proper operation of coherent allocations
 		 * later, in case driver doesn't set it explicitly */
-		dma_set_mask_and_coherent(&viodev->dev, DMA_BIT_MASK(64));
+		dma_coerce_mask_and_coherent(&viodev->dev, DMA_BIT_MASK(64));
 	}
 
 	/* register with generic device framework */
-- 
cgit 


From 3eb906c6b6c123513718e7742a96a4189f900382 Mon Sep 17 00:00:00 2001
From: Michael Ellerman <mpe@ellerman.id.au>
Date: Wed, 20 Nov 2013 11:05:01 +1100
Subject: powerpc: Make cpu_to_chip_id() available when SMP=n

Up until now we have only used cpu_to_chip_id() in the topology code,
which is only used on SMP builds. However my recent commit a4da0d5
"Implement arch_get_random_long/int() for powernv" added a usage when
SMP=n, breaking the build.

Move cpu_to_chip_id() into prom.c so it is available for SMP=n builds.

We would move the extern to prom.h, but that breaks the include in
topology.h. Instead we leave it in smp.h, but move it out of the
CONFIG_SMP #ifdef. We also need to include asm/smp.h in rng.c, because
the linux version skips asm/smp.h on UP. What a mess.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/smp.h       |  2 +-
 arch/powerpc/kernel/prom.c           | 20 ++++++++++++++++++++
 arch/powerpc/kernel/smp.c            | 16 ----------------
 arch/powerpc/platforms/powernv/rng.c |  1 +
 4 files changed, 22 insertions(+), 17 deletions(-)

diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h
index 98da78e0c2c0..084e0807db98 100644
--- a/arch/powerpc/include/asm/smp.h
+++ b/arch/powerpc/include/asm/smp.h
@@ -33,6 +33,7 @@ extern int boot_cpuid;
 extern int spinning_secondaries;
 
 extern void cpu_die(void);
+extern int cpu_to_chip_id(int cpu);
 
 #ifdef CONFIG_SMP
 
@@ -112,7 +113,6 @@ static inline struct cpumask *cpu_core_mask(int cpu)
 }
 
 extern int cpu_to_core_id(int cpu);
-extern int cpu_to_chip_id(int cpu);
 
 /* Since OpenPIC has only 4 IPIs, we use slightly different message numbers.
  *
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index f3a47098fb8e..fa0ad8aafbcc 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -777,6 +777,26 @@ int of_get_ibm_chip_id(struct device_node *np)
 	return -1;
 }
 
+/**
+ * cpu_to_chip_id - Return the cpus chip-id
+ * @cpu: The logical cpu number.
+ *
+ * Return the value of the ibm,chip-id property corresponding to the given
+ * logical cpu number. If the chip-id can not be found, returns -1.
+ */
+int cpu_to_chip_id(int cpu)
+{
+	struct device_node *np;
+
+	np = of_get_cpu_node(cpu, NULL);
+	if (!np)
+		return -1;
+
+	of_node_put(np);
+	return of_get_ibm_chip_id(np);
+}
+EXPORT_SYMBOL(cpu_to_chip_id);
+
 #ifdef CONFIG_PPC_PSERIES
 /*
  * Fix up the uninitialized fields in a new device node:
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 930cd8af3503..a3b64f3bf9a2 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -597,22 +597,6 @@ out:
 	return id;
 }
 
-/* Return the value of the chip-id property corresponding
- * to the given logical cpu.
- */
-int cpu_to_chip_id(int cpu)
-{
-	struct device_node *np;
-
-	np = of_get_cpu_node(cpu, NULL);
-	if (!np)
-		return -1;
-
-	of_node_put(np);
-	return of_get_ibm_chip_id(np);
-}
-EXPORT_SYMBOL(cpu_to_chip_id);
-
 /* Helper routines for cpu to core mapping */
 int cpu_core_index_of_thread(int cpu)
 {
diff --git a/arch/powerpc/platforms/powernv/rng.c b/arch/powerpc/platforms/powernv/rng.c
index 8844628915dc..1cb160dc1609 100644
--- a/arch/powerpc/platforms/powernv/rng.c
+++ b/arch/powerpc/platforms/powernv/rng.c
@@ -19,6 +19,7 @@
 #include <asm/io.h>
 #include <asm/prom.h>
 #include <asm/machdep.h>
+#include <asm/smp.h>
 
 
 struct powernv_rng {
-- 
cgit 


From 148924f7a282b3acb1f8868ae03c3f76be301d8d Mon Sep 17 00:00:00 2001
From: Michael Ellerman <mpe@ellerman.id.au>
Date: Wed, 20 Nov 2013 11:05:02 +1100
Subject: powerpc/pseries: Fix SMP=n build of rng.c

In commit a489043 "Implement arch_get_random_long() based on H_RANDOM" I
broke the SMP=n build. We were getting plpar_wrappers.h via spinlock.h
which breaks when SMP=n.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/pseries/rng.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/powerpc/platforms/pseries/rng.c b/arch/powerpc/platforms/pseries/rng.c
index a702f1c08242..72a102758d4e 100644
--- a/arch/powerpc/platforms/pseries/rng.c
+++ b/arch/powerpc/platforms/pseries/rng.c
@@ -13,6 +13,7 @@
 #include <linux/of.h>
 #include <asm/archrandom.h>
 #include <asm/machdep.h>
+#include <asm/plpar_wrappers.h>
 
 
 static int pseries_get_random_long(unsigned long *v)
-- 
cgit 


From c13f20ac48328b05cd3b8c19e31ed6c132b44b42 Mon Sep 17 00:00:00 2001
From: Michael Neuling <mikey@neuling.org>
Date: Wed, 20 Nov 2013 16:18:54 +1100
Subject: powerpc/signals: Mark VSX not saved with small contexts

The VSX MSR bit in the user context indicates if the context contains VSX
state.  Currently we set this when the process has touched VSX at any stage.

Unfortunately, if the user has not provided enough space to save the VSX state,
we can't save it but we currently still set the MSR VSX bit.

This patch changes this to clear the MSR VSX bit when the user doesn't provide
enough space.  This indicates that there is no valid VSX state in the user
context.

This is needed to support get/set/make/swapcontext for applications that use
VSX but only provide a small context.  For example, getcontext in glibc
provides a smaller context since the VSX registers don't need to be saved over
the glibc function call.  But since the program calling getcontext may have
used VSX, the kernel currently says the VSX state is valid when it's not.  If
the returned context is then used in setcontext (ie. a small context without
VSX but with MSR VSX set), the kernel will refuse the context.  This situation
has been reported by the glibc community.

Based on patch from Carlos O'Donell.

Tested-by: Haren Myneni <haren@linux.vnet.ibm.com>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/signal_32.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 749778e0a69d..1844298f5ea4 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -457,7 +457,15 @@ static int save_user_regs(struct pt_regs *regs, struct mcontext __user *frame,
 		if (copy_vsx_to_user(&frame->mc_vsregs, current))
 			return 1;
 		msr |= MSR_VSX;
-	}
+	} else if (!ctx_has_vsx_region)
+		/*
+		 * With a small context structure we can't hold the VSX
+		 * registers, hence clear the MSR value to indicate the state
+		 * was not saved.
+		 */
+		msr &= ~MSR_VSX;
+
+
 #endif /* CONFIG_VSX */
 #ifdef CONFIG_SPE
 	/* save spe registers */
-- 
cgit 


From 4cc8a57425c623753b10b77b15392e5b83baa5a3 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 17 Nov 2013 14:00:16 +0100
Subject: Revert "dell-laptop: Remove rfkill code"

Without rfkill functionality in dell-laptop I have the following problems:
-If the hardware radio switch is set to disable the radio, then userspace
 will still think it can use wireless and bluetooth.
-The wwan / 3g modem cannot be soft blocked without the dell-laptop rfkill
 functionality

I know the rfkill functionality was removed from the dell-laptop driver because
it caused more problems then it fixed, and the blacklist for it was growing out
of control.

But in the thread discussing this Dell mentioned that they only QA the rfkill
acpi interface on Latitudes and indeed there have been no blacklist entries
for Latitudes. Therefor I would like to bring the rfkill functionality back
only for Latitudes. This patch is a straight-forward revert. The next patch
in this set will drop the blacklist and replace it with a Latitude check.

This reverts commit a6c2390cd6d2083d27a2359658e08f2d3df375ac.

Conflicts:
	drivers/platform/x86/dell-laptop.c

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/dell-laptop.c | 289 +++++++++++++++++++++++++++++++++++++
 1 file changed, 289 insertions(+)

diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index bb77e18b3dd4..55f75a2d5168 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -21,6 +21,7 @@
 #include <linux/err.h>
 #include <linux/dmi.h>
 #include <linux/io.h>
+#include <linux/rfkill.h>
 #include <linux/power_supply.h>
 #include <linux/acpi.h>
 #include <linux/mm.h>
@@ -89,6 +90,9 @@ static struct platform_driver platform_driver = {
 
 static struct platform_device *platform_device;
 static struct backlight_device *dell_backlight_device;
+static struct rfkill *wifi_rfkill;
+static struct rfkill *bluetooth_rfkill;
+static struct rfkill *wwan_rfkill;
 
 static const struct dmi_system_id dell_device_table[] __initconst = {
 	{
@@ -115,6 +119,53 @@ static const struct dmi_system_id dell_device_table[] __initconst = {
 };
 MODULE_DEVICE_TABLE(dmi, dell_device_table);
 
+static struct dmi_system_id dell_blacklist[] = {
+	/* Supported by compal-laptop */
+	{
+		.ident = "Dell Mini 9",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 910"),
+		},
+	},
+	{
+		.ident = "Dell Mini 10",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1010"),
+		},
+	},
+	{
+		.ident = "Dell Mini 10v",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1011"),
+		},
+	},
+	{
+		.ident = "Dell Mini 1012",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1012"),
+		},
+	},
+	{
+		.ident = "Dell Inspiron 11z",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1110"),
+		},
+	},
+	{
+		.ident = "Dell Mini 12",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1210"),
+		},
+	},
+	{}
+};
+
 static struct dmi_system_id dell_quirks[] = {
 	{
 		.callback = dmi_matched,
@@ -355,6 +406,94 @@ dell_send_request(struct calling_interface_buffer *buffer, int class,
 	return buffer;
 }
 
+/* Derived from information in DellWirelessCtl.cpp:
+   Class 17, select 11 is radio control. It returns an array of 32-bit values.
+
+   Input byte 0 = 0: Wireless information
+
+   result[0]: return code
+   result[1]:
+     Bit 0:      Hardware switch supported
+     Bit 1:      Wifi locator supported
+     Bit 2:      Wifi is supported
+     Bit 3:      Bluetooth is supported
+     Bit 4:      WWAN is supported
+     Bit 5:      Wireless keyboard supported
+     Bits 6-7:   Reserved
+     Bit 8:      Wifi is installed
+     Bit 9:      Bluetooth is installed
+     Bit 10:     WWAN is installed
+     Bits 11-15: Reserved
+     Bit 16:     Hardware switch is on
+     Bit 17:     Wifi is blocked
+     Bit 18:     Bluetooth is blocked
+     Bit 19:     WWAN is blocked
+     Bits 20-31: Reserved
+   result[2]: NVRAM size in bytes
+   result[3]: NVRAM format version number
+
+   Input byte 0 = 2: Wireless switch configuration
+   result[0]: return code
+   result[1]:
+     Bit 0:      Wifi controlled by switch
+     Bit 1:      Bluetooth controlled by switch
+     Bit 2:      WWAN controlled by switch
+     Bits 3-6:   Reserved
+     Bit 7:      Wireless switch config locked
+     Bit 8:      Wifi locator enabled
+     Bits 9-14:  Reserved
+     Bit 15:     Wifi locator setting locked
+     Bits 16-31: Reserved
+*/
+
+static int dell_rfkill_set(void *data, bool blocked)
+{
+	int disable = blocked ? 1 : 0;
+	unsigned long radio = (unsigned long)data;
+	int hwswitch_bit = (unsigned long)data - 1;
+	int ret = 0;
+
+	get_buffer();
+	dell_send_request(buffer, 17, 11);
+
+	/* If the hardware switch controls this radio, and the hardware
+	   switch is disabled, don't allow changing the software state */
+	if ((hwswitch_state & BIT(hwswitch_bit)) &&
+	    !(buffer->output[1] & BIT(16))) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	buffer->input[0] = (1 | (radio<<8) | (disable << 16));
+	dell_send_request(buffer, 17, 11);
+
+out:
+	release_buffer();
+	return ret;
+}
+
+static void dell_rfkill_query(struct rfkill *rfkill, void *data)
+{
+	int status;
+	int bit = (unsigned long)data + 16;
+	int hwswitch_bit = (unsigned long)data - 1;
+
+	get_buffer();
+	dell_send_request(buffer, 17, 11);
+	status = buffer->output[1];
+	release_buffer();
+
+	rfkill_set_sw_state(rfkill, !!(status & BIT(bit)));
+
+	if (hwswitch_state & (BIT(hwswitch_bit)))
+		rfkill_set_hw_state(rfkill, !(status & BIT(16)));
+}
+
+static const struct rfkill_ops dell_rfkill_ops = {
+	.set_block = dell_rfkill_set,
+	.query = dell_rfkill_query,
+};
+
 static struct dentry *dell_laptop_dir;
 
 static int dell_debugfs_show(struct seq_file *s, void *data)
@@ -424,6 +563,108 @@ static const struct file_operations dell_debugfs_fops = {
 	.release = single_release,
 };
 
+static void dell_update_rfkill(struct work_struct *ignored)
+{
+	if (wifi_rfkill)
+		dell_rfkill_query(wifi_rfkill, (void *)1);
+	if (bluetooth_rfkill)
+		dell_rfkill_query(bluetooth_rfkill, (void *)2);
+	if (wwan_rfkill)
+		dell_rfkill_query(wwan_rfkill, (void *)3);
+}
+static DECLARE_DELAYED_WORK(dell_rfkill_work, dell_update_rfkill);
+
+
+static int __init dell_setup_rfkill(void)
+{
+	int status;
+	int ret;
+
+	if (dmi_check_system(dell_blacklist)) {
+		pr_info("Blacklisted hardware detected - not enabling rfkill\n");
+		return 0;
+	}
+
+	get_buffer();
+	dell_send_request(buffer, 17, 11);
+	status = buffer->output[1];
+	buffer->input[0] = 0x2;
+	dell_send_request(buffer, 17, 11);
+	hwswitch_state = buffer->output[1];
+	release_buffer();
+
+	if ((status & (1<<2|1<<8)) == (1<<2|1<<8)) {
+		wifi_rfkill = rfkill_alloc("dell-wifi", &platform_device->dev,
+					   RFKILL_TYPE_WLAN,
+					   &dell_rfkill_ops, (void *) 1);
+		if (!wifi_rfkill) {
+			ret = -ENOMEM;
+			goto err_wifi;
+		}
+		ret = rfkill_register(wifi_rfkill);
+		if (ret)
+			goto err_wifi;
+	}
+
+	if ((status & (1<<3|1<<9)) == (1<<3|1<<9)) {
+		bluetooth_rfkill = rfkill_alloc("dell-bluetooth",
+						&platform_device->dev,
+						RFKILL_TYPE_BLUETOOTH,
+						&dell_rfkill_ops, (void *) 2);
+		if (!bluetooth_rfkill) {
+			ret = -ENOMEM;
+			goto err_bluetooth;
+		}
+		ret = rfkill_register(bluetooth_rfkill);
+		if (ret)
+			goto err_bluetooth;
+	}
+
+	if ((status & (1<<4|1<<10)) == (1<<4|1<<10)) {
+		wwan_rfkill = rfkill_alloc("dell-wwan",
+					   &platform_device->dev,
+					   RFKILL_TYPE_WWAN,
+					   &dell_rfkill_ops, (void *) 3);
+		if (!wwan_rfkill) {
+			ret = -ENOMEM;
+			goto err_wwan;
+		}
+		ret = rfkill_register(wwan_rfkill);
+		if (ret)
+			goto err_wwan;
+	}
+
+	return 0;
+err_wwan:
+	rfkill_destroy(wwan_rfkill);
+	if (bluetooth_rfkill)
+		rfkill_unregister(bluetooth_rfkill);
+err_bluetooth:
+	rfkill_destroy(bluetooth_rfkill);
+	if (wifi_rfkill)
+		rfkill_unregister(wifi_rfkill);
+err_wifi:
+	rfkill_destroy(wifi_rfkill);
+
+	return ret;
+}
+
+static void dell_cleanup_rfkill(void)
+{
+	if (wifi_rfkill) {
+		rfkill_unregister(wifi_rfkill);
+		rfkill_destroy(wifi_rfkill);
+	}
+	if (bluetooth_rfkill) {
+		rfkill_unregister(bluetooth_rfkill);
+		rfkill_destroy(bluetooth_rfkill);
+	}
+	if (wwan_rfkill) {
+		rfkill_unregister(wwan_rfkill);
+		rfkill_destroy(wwan_rfkill);
+	}
+}
+
 static int dell_send_intensity(struct backlight_device *bd)
 {
 	int ret = 0;
@@ -515,6 +756,30 @@ static void touchpad_led_exit(void)
 	led_classdev_unregister(&touchpad_led);
 }
 
+static bool dell_laptop_i8042_filter(unsigned char data, unsigned char str,
+			      struct serio *port)
+{
+	static bool extended;
+
+	if (str & 0x20)
+		return false;
+
+	if (unlikely(data == 0xe0)) {
+		extended = true;
+		return false;
+	} else if (unlikely(extended)) {
+		switch (data) {
+		case 0x8:
+			schedule_delayed_work(&dell_rfkill_work,
+					      round_jiffies_relative(HZ));
+			break;
+		}
+		extended = false;
+	}
+
+	return false;
+}
+
 static int __init dell_init(void)
 {
 	int max_intensity = 0;
@@ -557,10 +822,26 @@ static int __init dell_init(void)
 	}
 	buffer = page_address(bufferpage);
 
+	ret = dell_setup_rfkill();
+
+	if (ret) {
+		pr_warn("Unable to setup rfkill\n");
+		goto fail_rfkill;
+	}
+
+	ret = i8042_install_filter(dell_laptop_i8042_filter);
+	if (ret) {
+		pr_warn("Unable to install key filter\n");
+		goto fail_filter;
+	}
+
 	if (quirks && quirks->touchpad_led)
 		touchpad_led_init(&platform_device->dev);
 
 	dell_laptop_dir = debugfs_create_dir("dell_laptop", NULL);
+	if (dell_laptop_dir != NULL)
+		debugfs_create_file("rfkill", 0444, dell_laptop_dir, NULL,
+				    &dell_debugfs_fops);
 
 #ifdef CONFIG_ACPI
 	/* In the event of an ACPI backlight being available, don't
@@ -603,6 +884,11 @@ static int __init dell_init(void)
 	return 0;
 
 fail_backlight:
+	i8042_remove_filter(dell_laptop_i8042_filter);
+	cancel_delayed_work_sync(&dell_rfkill_work);
+fail_filter:
+	dell_cleanup_rfkill();
+fail_rfkill:
 	free_page((unsigned long)bufferpage);
 fail_buffer:
 	platform_device_del(platform_device);
@@ -620,7 +906,10 @@ static void __exit dell_exit(void)
 	debugfs_remove_recursive(dell_laptop_dir);
 	if (quirks && quirks->touchpad_led)
 		touchpad_led_exit();
+	i8042_remove_filter(dell_laptop_i8042_filter);
+	cancel_delayed_work_sync(&dell_rfkill_work);
 	backlight_device_unregister(dell_backlight_device);
+	dell_cleanup_rfkill();
 	if (platform_device) {
 		platform_device_unregister(platform_device);
 		platform_driver_unregister(&platform_driver);
-- 
cgit 


From 2a92551845bbbc8421ba908cd14bbdf065e0f454 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 17 Nov 2013 14:00:17 +0100
Subject: dell-laptop: Only enable rfkill on Latitudes

The rfkill functionality was removed from the dell-laptop driver because it
was causing problems on various non Latitude models, and the blacklist kept
growing and growing. In the thread discussing this Dell mentioned that they
only QA the rfkill acpi interface on Latitudes and indeed there have been
no blacklist entries for Latitudes.

Note that the blacklist contained no Vostros either, and most Vostros have
a hardware switch too, so we could consider supporting Vostros with a
hardware switch too.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/dell-laptop.c | 57 +++++---------------------------------
 1 file changed, 7 insertions(+), 50 deletions(-)

diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index 55f75a2d5168..bae932b60bab 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -119,53 +119,6 @@ static const struct dmi_system_id dell_device_table[] __initconst = {
 };
 MODULE_DEVICE_TABLE(dmi, dell_device_table);
 
-static struct dmi_system_id dell_blacklist[] = {
-	/* Supported by compal-laptop */
-	{
-		.ident = "Dell Mini 9",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 910"),
-		},
-	},
-	{
-		.ident = "Dell Mini 10",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1010"),
-		},
-	},
-	{
-		.ident = "Dell Mini 10v",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1011"),
-		},
-	},
-	{
-		.ident = "Dell Mini 1012",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1012"),
-		},
-	},
-	{
-		.ident = "Dell Inspiron 11z",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1110"),
-		},
-	},
-	{
-		.ident = "Dell Mini 12",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1210"),
-		},
-	},
-	{}
-};
-
 static struct dmi_system_id dell_quirks[] = {
 	{
 		.callback = dmi_matched,
@@ -579,11 +532,15 @@ static int __init dell_setup_rfkill(void)
 {
 	int status;
 	int ret;
+	const char *product;
 
-	if (dmi_check_system(dell_blacklist)) {
-		pr_info("Blacklisted hardware detected - not enabling rfkill\n");
+	/*
+	 * rfkill causes trouble on various non Latitudes, according to Dell
+	 * actually testing the rfkill functionality is only done on Latitudes.
+	 */
+	product = dmi_get_system_info(DMI_PRODUCT_NAME);
+	if (!product || strncmp(product, "Latitude", 8))
 		return 0;
-	}
 
 	get_buffer();
 	dell_send_request(buffer, 17, 11);
-- 
cgit 


From ddde708217af6d5fe43c0086247c05ed317076b4 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 17 Nov 2013 14:00:18 +0100
Subject: dell-laptop: If there is no hwswitch, then clear all hw-controlled
 bits

To ensure we don't enter any hw-switch related code paths on machines without
a hw-switch.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/dell-laptop.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index bae932b60bab..48fabf6b6ecb 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -548,6 +548,9 @@ static int __init dell_setup_rfkill(void)
 	buffer->input[0] = 0x2;
 	dell_send_request(buffer, 17, 11);
 	hwswitch_state = buffer->output[1];
+	/* If there is no hwswitch, then clear all hw-controlled bits */
+	if (!(status & BIT(0)))
+		hwswitch_state &= ~7;
 	release_buffer();
 
 	if ((status & (1<<2|1<<8)) == (1<<2|1<<8)) {
-- 
cgit 


From d038880efd9dd222c67fd31fbfca3440d0db3a06 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 17 Nov 2013 14:00:19 +0100
Subject: dell-laptop: Only get status from BIOS once when updating

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/dell-laptop.c | 28 +++++++++++++++++++---------
 1 file changed, 19 insertions(+), 9 deletions(-)

diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index 48fabf6b6ecb..06f281bf7790 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -425,21 +425,24 @@ out:
 	return ret;
 }
 
+static void dell_rfkill_update(struct rfkill *rfkill, int radio, int status)
+{
+	rfkill_set_sw_state(rfkill, !!(status & BIT(radio + 16)));
+
+	if (hwswitch_state & (BIT(radio - 1)))
+		rfkill_set_hw_state(rfkill, !(status & BIT(16)));
+}
+
 static void dell_rfkill_query(struct rfkill *rfkill, void *data)
 {
 	int status;
-	int bit = (unsigned long)data + 16;
-	int hwswitch_bit = (unsigned long)data - 1;
 
 	get_buffer();
 	dell_send_request(buffer, 17, 11);
 	status = buffer->output[1];
 	release_buffer();
 
-	rfkill_set_sw_state(rfkill, !!(status & BIT(bit)));
-
-	if (hwswitch_state & (BIT(hwswitch_bit)))
-		rfkill_set_hw_state(rfkill, !(status & BIT(16)));
+	dell_rfkill_update(rfkill, (unsigned long)data, status);
 }
 
 static const struct rfkill_ops dell_rfkill_ops = {
@@ -518,12 +521,19 @@ static const struct file_operations dell_debugfs_fops = {
 
 static void dell_update_rfkill(struct work_struct *ignored)
 {
+	int status;
+
+	get_buffer();
+	dell_send_request(buffer, 17, 11);
+	status = buffer->output[1];
+	release_buffer();
+
 	if (wifi_rfkill)
-		dell_rfkill_query(wifi_rfkill, (void *)1);
+		dell_rfkill_update(wifi_rfkill, 1, status);
 	if (bluetooth_rfkill)
-		dell_rfkill_query(bluetooth_rfkill, (void *)2);
+		dell_rfkill_update(bluetooth_rfkill, 2, status);
 	if (wwan_rfkill)
-		dell_rfkill_query(wwan_rfkill, (void *)3);
+		dell_rfkill_update(wwan_rfkill, 3, status);
 }
 static DECLARE_DELAYED_WORK(dell_rfkill_work, dell_update_rfkill);
 
-- 
cgit 


From 33f9359abb9f6ded3e7b6dc98b1468c83404af49 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 17 Nov 2013 14:00:20 +0100
Subject: dell-laptop: Don't set sw_state from the query callback

The query callback should only update the hw_state, see the comment in
net/rfkill/core.c in rfkill_set_block, which is its only caller.

rfkill_set_block will modify the sw_state directly after calling query so
calling set_sw_state is an expensive NOP.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/dell-laptop.c | 27 +++++++++++++++++++--------
 1 file changed, 19 insertions(+), 8 deletions(-)

diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index 06f281bf7790..7f47396846d1 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -425,10 +425,15 @@ out:
 	return ret;
 }
 
-static void dell_rfkill_update(struct rfkill *rfkill, int radio, int status)
+static void dell_rfkill_update_sw_state(struct rfkill *rfkill, int radio,
+					int status)
 {
 	rfkill_set_sw_state(rfkill, !!(status & BIT(radio + 16)));
+}
 
+static void dell_rfkill_update_hw_state(struct rfkill *rfkill, int radio,
+					int status)
+{
 	if (hwswitch_state & (BIT(radio - 1)))
 		rfkill_set_hw_state(rfkill, !(status & BIT(16)));
 }
@@ -442,7 +447,7 @@ static void dell_rfkill_query(struct rfkill *rfkill, void *data)
 	status = buffer->output[1];
 	release_buffer();
 
-	dell_rfkill_update(rfkill, (unsigned long)data, status);
+	dell_rfkill_update_hw_state(rfkill, (unsigned long)data, status);
 }
 
 static const struct rfkill_ops dell_rfkill_ops = {
@@ -528,12 +533,18 @@ static void dell_update_rfkill(struct work_struct *ignored)
 	status = buffer->output[1];
 	release_buffer();
 
-	if (wifi_rfkill)
-		dell_rfkill_update(wifi_rfkill, 1, status);
-	if (bluetooth_rfkill)
-		dell_rfkill_update(bluetooth_rfkill, 2, status);
-	if (wwan_rfkill)
-		dell_rfkill_update(wwan_rfkill, 3, status);
+	if (wifi_rfkill) {
+		dell_rfkill_update_hw_state(wifi_rfkill, 1, status);
+		dell_rfkill_update_sw_state(wifi_rfkill, 1, status);
+	}
+	if (bluetooth_rfkill) {
+		dell_rfkill_update_hw_state(bluetooth_rfkill, 2, status);
+		dell_rfkill_update_sw_state(bluetooth_rfkill, 2, status);
+	}
+	if (wwan_rfkill) {
+		dell_rfkill_update_hw_state(wwan_rfkill, 3, status);
+		dell_rfkill_update_sw_state(wwan_rfkill, 3, status);
+	}
 }
 static DECLARE_DELAYED_WORK(dell_rfkill_work, dell_update_rfkill);
 
-- 
cgit 


From 3f56588a79a06a0499db0077cad6675762ddc40e Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 17 Nov 2013 14:00:21 +0100
Subject: dell-laptop: Don't read-back sw_state on machines with a hardware
 switch

On machines with a hardware switch, the blocking settings can not be changed
through a Fn + wireless-key combo, so there is no reason to read back the
blocking state from the BIOS.

Reading back is not only not necessary it is actually harmful, since on some
machines the blocking state will be cleared to all 0 after a wireless switch
toggle, even for radios not controlled by the hw-switch (yeah firmware bugs).

This causes "magic" changes to the sw_state. This is inconsistent with other
rfkill drivers which preserve the sw_state over a hw kill on / off.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/dell-laptop.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index 7f47396846d1..80de0cca1dfa 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -428,7 +428,10 @@ out:
 static void dell_rfkill_update_sw_state(struct rfkill *rfkill, int radio,
 					int status)
 {
-	rfkill_set_sw_state(rfkill, !!(status & BIT(radio + 16)));
+	if (!(status & BIT(0))) {
+		/* No hw-switch, sync BIOS state to sw_state */
+		rfkill_set_sw_state(rfkill, !!(status & BIT(radio + 16)));
+	}
 }
 
 static void dell_rfkill_update_hw_state(struct rfkill *rfkill, int radio,
-- 
cgit 


From 4d39d88ceb83e88953a76df8b1fa10f43f328038 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 17 Nov 2013 14:00:22 +0100
Subject: dell-laptop: Allow changing the sw_state while the radio is blocked
 by hw

This makes dell-laptop's rfkill code consistent with other drivers which
allow sw_state changes while hw blocked.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/dell-laptop.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index 80de0cca1dfa..834f499a6aec 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -404,7 +404,6 @@ static int dell_rfkill_set(void *data, bool blocked)
 	int disable = blocked ? 1 : 0;
 	unsigned long radio = (unsigned long)data;
 	int hwswitch_bit = (unsigned long)data - 1;
-	int ret = 0;
 
 	get_buffer();
 	dell_send_request(buffer, 17, 11);
@@ -412,17 +411,15 @@ static int dell_rfkill_set(void *data, bool blocked)
 	/* If the hardware switch controls this radio, and the hardware
 	   switch is disabled, don't allow changing the software state */
 	if ((hwswitch_state & BIT(hwswitch_bit)) &&
-	    !(buffer->output[1] & BIT(16))) {
-		ret = -EINVAL;
+	    !(buffer->output[1] & BIT(16)))
 		goto out;
-	}
 
 	buffer->input[0] = (1 | (radio<<8) | (disable << 16));
 	dell_send_request(buffer, 17, 11);
 
 out:
 	release_buffer();
-	return ret;
+	return 0;
 }
 
 static void dell_rfkill_update_sw_state(struct rfkill *rfkill, int radio,
-- 
cgit 


From 04c9a3a06c47b337b90a91e458716262cc45b103 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 17 Nov 2013 14:00:23 +0100
Subject: dell-laptop: Sync current block state to BIOS on hw switch change

This is necessary for 3 reasons:
1) To apply sw_state changes made while hw-blocked
2) To set all the blocked bits for hw-switch controlled radios to 1 when the
   switch gets changed to off, this is necessary on some models to actually
   turn the radio status LEDs off.
3) On some models non hw-switch controlled radios will have their block bit
   cleared (potentially undoing a soft-block) on hw-switch toggle, this
   restores the sw-block in this case.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/dell-laptop.c | 14 +++++++++++---
 1 file changed, 11 insertions(+), 3 deletions(-)

diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index 834f499a6aec..7f59624d805d 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -422,10 +422,16 @@ out:
 	return 0;
 }
 
+/* Must be called with the buffer held */
 static void dell_rfkill_update_sw_state(struct rfkill *rfkill, int radio,
 					int status)
 {
-	if (!(status & BIT(0))) {
+	if (status & BIT(0)) {
+		/* Has hw-switch, sync sw_state to BIOS */
+		int block = rfkill_blocked(rfkill);
+		buffer->input[0] = (1 | (radio << 8) | (block << 16));
+		dell_send_request(buffer, 17, 11);
+	} else {
 		/* No hw-switch, sync BIOS state to sw_state */
 		rfkill_set_sw_state(rfkill, !!(status & BIT(radio + 16)));
 	}
@@ -445,9 +451,10 @@ static void dell_rfkill_query(struct rfkill *rfkill, void *data)
 	get_buffer();
 	dell_send_request(buffer, 17, 11);
 	status = buffer->output[1];
-	release_buffer();
 
 	dell_rfkill_update_hw_state(rfkill, (unsigned long)data, status);
+
+	release_buffer();
 }
 
 static const struct rfkill_ops dell_rfkill_ops = {
@@ -531,7 +538,6 @@ static void dell_update_rfkill(struct work_struct *ignored)
 	get_buffer();
 	dell_send_request(buffer, 17, 11);
 	status = buffer->output[1];
-	release_buffer();
 
 	if (wifi_rfkill) {
 		dell_rfkill_update_hw_state(wifi_rfkill, 1, status);
@@ -545,6 +551,8 @@ static void dell_update_rfkill(struct work_struct *ignored)
 		dell_rfkill_update_hw_state(wwan_rfkill, 3, status);
 		dell_rfkill_update_sw_state(wwan_rfkill, 3, status);
 	}
+
+	release_buffer();
 }
 static DECLARE_DELAYED_WORK(dell_rfkill_work, dell_update_rfkill);
 
-- 
cgit 


From ed1128989ab242f44664b446702a512e5695c4b7 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 17 Nov 2013 14:00:24 +0100
Subject: dell-laptop: Do not skip setting blocked bit rfkill_set while
 hw-blocked

Instead when hw-blocked always write 1 to the blocked bit for the radio in
question. This is necessary to properly set all the blocked bits for hw-switch
controlled radios to 1 after power-on and resume.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/dell-laptop.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index 7f59624d805d..b33b77991523 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -409,15 +409,14 @@ static int dell_rfkill_set(void *data, bool blocked)
 	dell_send_request(buffer, 17, 11);
 
 	/* If the hardware switch controls this radio, and the hardware
-	   switch is disabled, don't allow changing the software state */
+	   switch is disabled, always disable the radio */
 	if ((hwswitch_state & BIT(hwswitch_bit)) &&
 	    !(buffer->output[1] & BIT(16)))
-		goto out;
+		disable = 1;
 
 	buffer->input[0] = (1 | (radio<<8) | (disable << 16));
 	dell_send_request(buffer, 17, 11);
 
-out:
 	release_buffer();
 	return 0;
 }
-- 
cgit 


From 26c22d63a70f62e0832c6d9f2a2690ab0155d584 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 17 Nov 2013 14:00:25 +0100
Subject: dell-laptop: Wait less long before updating rfkill after an rfkill
 keypress

Some time is needed for the BIOS to do its work, but 250ms should be plenty.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/dell-laptop.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index b33b77991523..fe20f67ff44b 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -759,7 +759,7 @@ static bool dell_laptop_i8042_filter(unsigned char data, unsigned char str,
 		switch (data) {
 		case 0x8:
 			schedule_delayed_work(&dell_rfkill_work,
-					      round_jiffies_relative(HZ));
+					      round_jiffies_relative(HZ / 4));
 			break;
 		}
 		extended = false;
-- 
cgit 


From 8e0e668d0aa09d2eb0a7a260b6c7801796e01bd3 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 17 Nov 2013 14:00:26 +0100
Subject: dell-laptop: Add a force_rfkill module parameter

Setting force_rfkill will cause the dell-laptop rfkill code to skip its
whitelist checks, this will allow individual users to override the whitelist,
as well as to gather info from users to improve the checks.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/dell-laptop.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index fe20f67ff44b..bd67c893ba07 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -93,6 +93,10 @@ static struct backlight_device *dell_backlight_device;
 static struct rfkill *wifi_rfkill;
 static struct rfkill *bluetooth_rfkill;
 static struct rfkill *wwan_rfkill;
+static bool force_rfkill;
+
+module_param(force_rfkill, bool, 0444);
+MODULE_PARM_DESC(force_rfkill, "enable rfkill on non whitelisted models");
 
 static const struct dmi_system_id dell_device_table[] __initconst = {
 	{
@@ -567,7 +571,7 @@ static int __init dell_setup_rfkill(void)
 	 * actually testing the rfkill functionality is only done on Latitudes.
 	 */
 	product = dmi_get_system_info(DMI_PRODUCT_NAME);
-	if (!product || strncmp(product, "Latitude", 8))
+	if (!force_rfkill && (!product || strncmp(product, "Latitude", 8)))
 		return 0;
 
 	get_buffer();
-- 
cgit 


From 2bd4ac139259bb605fc0325a7dda33e2fbb67ae3 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Sun, 17 Nov 2013 14:00:27 +0100
Subject: dell-laptop: Only enable rfkill functionality on laptops with a hw
 killswitch

All my testing has been on laptops with a hw killswitch, so to be on the
safe side disable rfkill functionality on models without a hw killswitch for
now. Once we gather some feedback on laptops without a hw killswitch this
decision maybe reconsidered.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/dell-laptop.c | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index bd67c893ba07..c608b1d33f4a 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -580,11 +580,18 @@ static int __init dell_setup_rfkill(void)
 	buffer->input[0] = 0x2;
 	dell_send_request(buffer, 17, 11);
 	hwswitch_state = buffer->output[1];
-	/* If there is no hwswitch, then clear all hw-controlled bits */
-	if (!(status & BIT(0)))
-		hwswitch_state &= ~7;
 	release_buffer();
 
+	if (!(status & BIT(0))) {
+		if (force_rfkill) {
+			/* No hwsitch, clear all hw-controlled bits */
+			hwswitch_state &= ~7;
+		} else {
+			/* rfkill is only tested on laptops with a hwswitch */
+			return 0;
+		}
+	}
+
 	if ((status & (1<<2|1<<8)) == (1<<2|1<<8)) {
 		wifi_rfkill = rfkill_alloc("dell-wifi", &platform_device->dev,
 					   RFKILL_TYPE_WLAN,
-- 
cgit 


From 1d885f4257165563342acc6bc473b67d9b36a742 Mon Sep 17 00:00:00 2001
From: Mattia Dongili <malattia@linux.it>
Date: Wed, 30 Oct 2013 08:07:36 +0900
Subject: sony-laptop: warn on multiple KBD backlight handles
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Some BIOS versions/Vaio models apparently ship with two nearly identical
functions to handle backlight related controls.
The only difference seems to be:
        If (LEqual (BUF1, 0x40))
        {
            Store (0x40, P80H)
            Store (BUF2, Local0)
-           And (Local0, One, Local0)
+           And (Local0, 0x03, Local0)
            Store (Local0, ^^H_EC.KLPC)
        }

Avoid erroring out on initialization and messing things up on cleanup
for now since we never call into these methods with anything different
than 1 or 0.
This issue was found on a Sony VPCSE1V9E/BIOS R2087H4.

Cc: Marco Krüger <krgsch@gmail.com>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/sony-laptop.c | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index 47caab0ea7a1..03f02cc476e5 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -145,7 +145,8 @@ static void sony_nc_thermal_resume(void);
 #endif
 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
 		unsigned int handle);
-static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd);
+static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
+		unsigned int handle);
 
 static int sony_nc_battery_care_setup(struct platform_device *pd,
 		unsigned int handle);
@@ -1444,7 +1445,7 @@ static void sony_nc_function_cleanup(struct platform_device *pd)
 		case 0x014b:
 		case 0x014c:
 		case 0x0163:
-			sony_nc_kbd_backlight_cleanup(pd);
+			sony_nc_kbd_backlight_cleanup(pd, handle);
 			break;
 		default:
 			continue;
@@ -1822,6 +1823,12 @@ static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
 	int result;
 	int ret = 0;
 
+	if (kbdbl_ctl) {
+		pr_warn("handle 0x%.4x: keyboard backlight setup already done for 0x%.4x\n",
+				handle, kbdbl_ctl->handle);
+		return -EBUSY;
+	}
+
 	/* verify the kbd backlight presence, these handles are not used for
 	 * keyboard backlight only
 	 */
@@ -1881,9 +1888,10 @@ outkzalloc:
 	return ret;
 }
 
-static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd)
+static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
+		unsigned int handle)
 {
-	if (kbdbl_ctl) {
+	if (kbdbl_ctl && handle == kbdbl_ctl->handle) {
 		device_remove_file(&pd->dev, &kbdbl_ctl->mode_attr);
 		device_remove_file(&pd->dev, &kbdbl_ctl->timeout_attr);
 		kfree(kbdbl_ctl);
-- 
cgit 


From a825bc87b2694dbefe39590a3efe29c5da4d3dd3 Mon Sep 17 00:00:00 2001
From: Stephen Gildea <stepheng+linux@gildea.com>
Date: Wed, 13 Nov 2013 08:17:36 +0900
Subject: sony-laptop: fixe typos in sony_laptop_input_keycode_map

Signed-off-by: Stephen Gildea <stepheng+linux@gildea.com>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/sony-laptop.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index 03f02cc476e5..c45c60f7ea2f 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -305,8 +305,8 @@ static int sony_laptop_input_keycode_map[] = {
 	KEY_FN_F10,	/* 14 SONYPI_EVENT_FNKEY_F10 */
 	KEY_FN_F11,	/* 15 SONYPI_EVENT_FNKEY_F11 */
 	KEY_FN_F12,	/* 16 SONYPI_EVENT_FNKEY_F12 */
-	KEY_FN_F1,	/* 17 SONYPI_EVENT_FNKEY_1 */
-	KEY_FN_F2,	/* 18 SONYPI_EVENT_FNKEY_2 */
+	KEY_FN_1,	/* 17 SONYPI_EVENT_FNKEY_1 */
+	KEY_FN_2,	/* 18 SONYPI_EVENT_FNKEY_2 */
 	KEY_FN_D,	/* 19 SONYPI_EVENT_FNKEY_D */
 	KEY_FN_E,	/* 20 SONYPI_EVENT_FNKEY_E */
 	KEY_FN_F,	/* 21 SONYPI_EVENT_FNKEY_F */
-- 
cgit 


From b222cca6002c9396c0ac03b68756f8c565d73561 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Wed, 23 Oct 2013 12:14:52 -0700
Subject: platform:x86: Remove OOM message after input_allocate_device

Emitting an OOM message isn't necessary after input_allocate_device
as there's a generic OOM and a dump_stack already done.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/asus-laptop.c        | 5 ++---
 drivers/platform/x86/eeepc-laptop.c       | 4 +---
 drivers/platform/x86/ideapad-laptop.c     | 4 +---
 drivers/platform/x86/intel_mid_powerbtn.c | 4 +---
 drivers/platform/x86/panasonic-laptop.c   | 5 +----
 drivers/platform/x86/thinkpad_acpi.c      | 1 -
 drivers/platform/x86/topstar-laptop.c     | 4 +---
 drivers/platform/x86/toshiba_acpi.c       | 4 +---
 8 files changed, 8 insertions(+), 23 deletions(-)

diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c
index 0e9c169b42f8..594323a926cf 100644
--- a/drivers/platform/x86/asus-laptop.c
+++ b/drivers/platform/x86/asus-laptop.c
@@ -1494,10 +1494,9 @@ static int asus_input_init(struct asus_laptop *asus)
 	int error;
 
 	input = input_allocate_device();
-	if (!input) {
-		pr_warn("Unable to allocate input device\n");
+	if (!input)
 		return -ENOMEM;
-	}
+
 	input->name = "Asus Laptop extra buttons";
 	input->phys = ASUS_LAPTOP_FILE "/input0";
 	input->id.bustype = BUS_HOST;
diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c
index aefcc32e5634..dec68e7a99c7 100644
--- a/drivers/platform/x86/eeepc-laptop.c
+++ b/drivers/platform/x86/eeepc-laptop.c
@@ -1203,10 +1203,8 @@ static int eeepc_input_init(struct eeepc_laptop *eeepc)
 	int error;
 
 	input = input_allocate_device();
-	if (!input) {
-		pr_info("Unable to allocate input device\n");
+	if (!input)
 		return -ENOMEM;
-	}
 
 	input->name = "Asus EeePC extra buttons";
 	input->phys = EEEPC_LAPTOP_FILE "/input0";
diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c
index 6788acc22ab9..19ec95147f69 100644
--- a/drivers/platform/x86/ideapad-laptop.c
+++ b/drivers/platform/x86/ideapad-laptop.c
@@ -570,10 +570,8 @@ static int ideapad_input_init(struct ideapad_private *priv)
 	int error;
 
 	inputdev = input_allocate_device();
-	if (!inputdev) {
-		pr_info("Unable to allocate input device\n");
+	if (!inputdev)
 		return -ENOMEM;
-	}
 
 	inputdev->name = "Ideapad extra buttons";
 	inputdev->phys = "ideapad/input0";
diff --git a/drivers/platform/x86/intel_mid_powerbtn.c b/drivers/platform/x86/intel_mid_powerbtn.c
index 6b18aba82cfa..8d6775266d66 100644
--- a/drivers/platform/x86/intel_mid_powerbtn.c
+++ b/drivers/platform/x86/intel_mid_powerbtn.c
@@ -66,10 +66,8 @@ static int mfld_pb_probe(struct platform_device *pdev)
 		return -EINVAL;
 
 	input = input_allocate_device();
-	if (!input) {
-		dev_err(&pdev->dev, "Input device allocation error\n");
+	if (!input)
 		return -ENOMEM;
-	}
 
 	input->name = pdev->name;
 	input->phys = "power-button/input0";
diff --git a/drivers/platform/x86/panasonic-laptop.c b/drivers/platform/x86/panasonic-laptop.c
index 10d12b221601..3008fd20572e 100644
--- a/drivers/platform/x86/panasonic-laptop.c
+++ b/drivers/platform/x86/panasonic-laptop.c
@@ -490,11 +490,8 @@ static int acpi_pcc_init_input(struct pcc_acpi *pcc)
 	int error;
 
 	input_dev = input_allocate_device();
-	if (!input_dev) {
-		ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
-				  "Couldn't allocate input device for hotkey"));
+	if (!input_dev)
 		return -ENOMEM;
-	}
 
 	input_dev->name = ACPI_PCC_DRIVER_NAME;
 	input_dev->phys = ACPI_PCC_INPUT_PHYS;
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 05e046aa5e31..a5e99d749246 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -9163,7 +9163,6 @@ static int __init thinkpad_acpi_module_init(void)
 	mutex_init(&tpacpi_inputdev_send_mutex);
 	tpacpi_inputdev = input_allocate_device();
 	if (!tpacpi_inputdev) {
-		pr_err("unable to allocate input device\n");
 		thinkpad_acpi_module_exit();
 		return -ENOMEM;
 	} else {
diff --git a/drivers/platform/x86/topstar-laptop.c b/drivers/platform/x86/topstar-laptop.c
index 67897c8740ba..e597de05e6c2 100644
--- a/drivers/platform/x86/topstar-laptop.c
+++ b/drivers/platform/x86/topstar-laptop.c
@@ -97,10 +97,8 @@ static int acpi_topstar_init_hkey(struct topstar_hkey *hkey)
 	int error;
 
 	input = input_allocate_device();
-	if (!input) {
-		pr_err("Unable to allocate input device\n");
+	if (!input)
 		return -ENOMEM;
-	}
 
 	input->name = "Topstar Laptop extra buttons";
 	input->phys = "topstar/input0";
diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
index 0cfadb65f7c6..7fce391818d3 100644
--- a/drivers/platform/x86/toshiba_acpi.c
+++ b/drivers/platform/x86/toshiba_acpi.c
@@ -975,10 +975,8 @@ static int toshiba_acpi_setup_keyboard(struct toshiba_acpi_dev *dev)
 	u32 hci_result;
 
 	dev->hotkey_dev = input_allocate_device();
-	if (!dev->hotkey_dev) {
-		pr_info("Unable to register input device\n");
+	if (!dev->hotkey_dev)
 		return -ENOMEM;
-	}
 
 	dev->hotkey_dev->name = "Toshiba input device";
 	dev->hotkey_dev->phys = "toshiba_acpi/input0";
-- 
cgit 


From cfb743bf6173063b57ef5a8185ea87f130209d4d Mon Sep 17 00:00:00 2001
From: Alex Hung <alex.hung@canonical.com>
Date: Tue, 12 Nov 2013 11:09:22 +0800
Subject: dell-wmi: Add KEY_MICMUTE to bios_to_linux_keycode

Signed-off-by: Alex Hung <alex.hung@canonical.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/dell-wmi.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c
index fa9a2171cc13..60e0900bc117 100644
--- a/drivers/platform/x86/dell-wmi.c
+++ b/drivers/platform/x86/dell-wmi.c
@@ -130,7 +130,8 @@ static const u16 bios_to_linux_keycode[256] __initconst = {
 	KEY_BRIGHTNESSUP,	KEY_UNKNOWN,	KEY_KBDILLUMTOGGLE,
 	KEY_UNKNOWN,	KEY_SWITCHVIDEOMODE,	KEY_UNKNOWN, KEY_UNKNOWN,
 	KEY_SWITCHVIDEOMODE,	KEY_UNKNOWN,	KEY_UNKNOWN, KEY_PROG2,
-	KEY_UNKNOWN, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	KEY_UNKNOWN,	KEY_UNKNOWN,	KEY_UNKNOWN,	KEY_UNKNOWN,
+	KEY_UNKNOWN,	KEY_UNKNOWN,	KEY_UNKNOWN,	KEY_MICMUTE,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
@@ -139,8 +140,8 @@ static const u16 bios_to_linux_keycode[256] __initconst = {
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-	KEY_PROG3
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_PROG3
 };
 
 static struct input_dev *dell_wmi_input_dev;
-- 
cgit 


From 997daa1bd9aca412ab97955a35b26c460c0ec7a4 Mon Sep 17 00:00:00 2001
From: Alex Hung <alex.hung@canonical.com>
Date: Tue, 29 Oct 2013 14:57:58 +0800
Subject: hp-wmi: detect "2009 BIOS or later" flag by WMI 0x0d for wireless cmd

Some HP BIOS has dummy WMI 0x05 cmd and it causes wireless set cmd to fail.
This patch fixes the problem by detecting "2009 BIOS or later" flag which
determines whether WMI 0x1b is supported and is used to replace WMI 0x05.

Signed-off-by: Alex Hung <alex.hung@canonical.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/hp-wmi.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 1c86fa0857c8..8ba8956b5a48 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -54,6 +54,7 @@ MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4");
 #define HPWMI_HARDWARE_QUERY 0x4
 #define HPWMI_WIRELESS_QUERY 0x5
 #define HPWMI_HOTKEY_QUERY 0xc
+#define HPWMI_FEATURE_QUERY 0xd
 #define HPWMI_WIRELESS2_QUERY 0x1b
 #define HPWMI_POSTCODEERROR_QUERY 0x2a
 
@@ -292,6 +293,17 @@ static int hp_wmi_tablet_state(void)
 	return (state & 0x4) ? 1 : 0;
 }
 
+static int hp_wmi_bios_2009_later(void)
+{
+	int state = 0;
+	int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, 0, &state,
+				       sizeof(state), sizeof(state));
+	if (ret)
+		return ret;
+
+	return (state & 0x10) ? 1 : 0;
+}
+
 static int hp_wmi_set_block(void *data, bool blocked)
 {
 	enum hp_wmi_radio r = (enum hp_wmi_radio) data;
@@ -871,7 +883,7 @@ static int __init hp_wmi_bios_setup(struct platform_device *device)
 	gps_rfkill = NULL;
 	rfkill2_count = 0;
 
-	if (hp_wmi_rfkill_setup(device))
+	if (hp_wmi_bios_2009_later() || hp_wmi_rfkill_setup(device))
 		hp_wmi_rfkill2_setup(device);
 
 	err = device_create_file(&device->dev, &dev_attr_display);
-- 
cgit 


From ab0431059ed0d0e3a9e532ad0488ada25021249d Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Thu, 7 Nov 2013 14:25:45 -0800
Subject: platform: add chrome platform directory

It makes sense to split out the Chromebook/Chromebox hardware platform
drivers to a separate subdirectory, since some of it will be shared
between ARM and x86.

This moves over the existing chromeos_laptop driver without making
any other changes, and adds appropriate Kconfig entries for the new
directory. It also adds a MAINTAINERS entry for the new subdir.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 MAINTAINERS                               |   5 +
 drivers/platform/Kconfig                  |   1 +
 drivers/platform/Makefile                 |   1 +
 drivers/platform/chrome/Kconfig           |  28 ++
 drivers/platform/chrome/Makefile          |   2 +
 drivers/platform/chrome/chromeos_laptop.c | 408 ++++++++++++++++++++++++++++++
 drivers/platform/x86/Kconfig              |  11 -
 drivers/platform/x86/Makefile             |   1 -
 drivers/platform/x86/chromeos_laptop.c    | 408 ------------------------------
 9 files changed, 445 insertions(+), 420 deletions(-)
 create mode 100644 drivers/platform/chrome/Kconfig
 create mode 100644 drivers/platform/chrome/Makefile
 create mode 100644 drivers/platform/chrome/chromeos_laptop.c
 delete mode 100644 drivers/platform/x86/chromeos_laptop.c

diff --git a/MAINTAINERS b/MAINTAINERS
index 63f30484932b..d08f66f645aa 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2142,6 +2142,11 @@ L:	linux-usb@vger.kernel.org
 S:	Maintained
 F:	drivers/usb/chipidea/
 
+CHROME HARDWARE PLATFORM SUPPORT
+M:	Olof Johansson <olof@lixom.net>
+S:	Maintained
+F:	drivers/platform/chrome/
+
 CISCO VIC ETHERNET NIC DRIVER
 M:	Christian Benvenuti <benve@cisco.com>
 M:	Sujith Sankar <ssujith@cisco.com>
diff --git a/drivers/platform/Kconfig b/drivers/platform/Kconfig
index 69616aeaa966..09fde58b12e0 100644
--- a/drivers/platform/Kconfig
+++ b/drivers/platform/Kconfig
@@ -5,3 +5,4 @@ if GOLDFISH
 source "drivers/platform/goldfish/Kconfig"
 endif
 
+source "drivers/platform/chrome/Kconfig"
diff --git a/drivers/platform/Makefile b/drivers/platform/Makefile
index 8a44a4cd6d1e..3656b7b17b99 100644
--- a/drivers/platform/Makefile
+++ b/drivers/platform/Makefile
@@ -5,3 +5,4 @@
 obj-$(CONFIG_X86)		+= x86/
 obj-$(CONFIG_OLPC)		+= olpc/
 obj-$(CONFIG_GOLDFISH)		+= goldfish/
+obj-$(CONFIG_CHROME_PLATFORMS)	+= chrome/
diff --git a/drivers/platform/chrome/Kconfig b/drivers/platform/chrome/Kconfig
new file mode 100644
index 000000000000..b13303e75a34
--- /dev/null
+++ b/drivers/platform/chrome/Kconfig
@@ -0,0 +1,28 @@
+#
+# Platform support for Chrome OS hardware (Chromebooks and Chromeboxes)
+#
+
+menuconfig CHROME_PLATFORMS
+	bool "Platform support for Chrome hardware"
+	depends on X86
+	---help---
+	  Say Y here to get to see options for platform support for
+	  various Chromebooks and Chromeboxes. This option alone does
+	  not add any kernel code.
+
+	  If you say N, all options in this submenu will be skipped and disabled.
+
+if CHROME_PLATFORMS
+
+config CHROMEOS_LAPTOP
+	tristate "Chrome OS Laptop"
+	depends on I2C
+	depends on DMI
+	---help---
+	  This driver instantiates i2c and smbus devices such as
+	  light sensors and touchpads.
+
+	  If you have a supported Chromebook, choose Y or M here.
+	  The module will be called chromeos_laptop.
+
+endif # CHROMEOS_PLATFORMS
diff --git a/drivers/platform/chrome/Makefile b/drivers/platform/chrome/Makefile
new file mode 100644
index 000000000000..015e9195e226
--- /dev/null
+++ b/drivers/platform/chrome/Makefile
@@ -0,0 +1,2 @@
+
+obj-$(CONFIG_CHROMEOS_LAPTOP)	+= chromeos_laptop.o
diff --git a/drivers/platform/chrome/chromeos_laptop.c b/drivers/platform/chrome/chromeos_laptop.c
new file mode 100644
index 000000000000..3e5b4497a1d0
--- /dev/null
+++ b/drivers/platform/chrome/chromeos_laptop.c
@@ -0,0 +1,408 @@
+/*
+ *  chromeos_laptop.c - Driver to instantiate Chromebook i2c/smbus devices.
+ *
+ *  Author : Benson Leung <bleung@chromium.org>
+ *
+ *  Copyright (C) 2012 Google, Inc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include <linux/dmi.h>
+#include <linux/i2c.h>
+#include <linux/i2c/atmel_mxt_ts.h>
+#include <linux/input.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+
+#define ATMEL_TP_I2C_ADDR	0x4b
+#define ATMEL_TP_I2C_BL_ADDR	0x25
+#define ATMEL_TS_I2C_ADDR	0x4a
+#define ATMEL_TS_I2C_BL_ADDR	0x26
+#define CYAPA_TP_I2C_ADDR	0x67
+#define ISL_ALS_I2C_ADDR	0x44
+#define TAOS_ALS_I2C_ADDR	0x29
+
+static struct i2c_client *als;
+static struct i2c_client *tp;
+static struct i2c_client *ts;
+
+const char *i2c_adapter_names[] = {
+	"SMBus I801 adapter",
+	"i915 gmbus vga",
+	"i915 gmbus panel",
+};
+
+/* Keep this enum consistent with i2c_adapter_names */
+enum i2c_adapter_type {
+	I2C_ADAPTER_SMBUS = 0,
+	I2C_ADAPTER_VGADDC,
+	I2C_ADAPTER_PANEL,
+};
+
+static struct i2c_board_info __initdata cyapa_device = {
+	I2C_BOARD_INFO("cyapa", CYAPA_TP_I2C_ADDR),
+	.flags		= I2C_CLIENT_WAKE,
+};
+
+static struct i2c_board_info __initdata isl_als_device = {
+	I2C_BOARD_INFO("isl29018", ISL_ALS_I2C_ADDR),
+};
+
+static struct i2c_board_info __initdata tsl2583_als_device = {
+	I2C_BOARD_INFO("tsl2583", TAOS_ALS_I2C_ADDR),
+};
+
+static struct i2c_board_info __initdata tsl2563_als_device = {
+	I2C_BOARD_INFO("tsl2563", TAOS_ALS_I2C_ADDR),
+};
+
+static struct mxt_platform_data atmel_224s_tp_platform_data = {
+	.x_line			= 18,
+	.y_line			= 12,
+	.x_size			= 102*20,
+	.y_size			= 68*20,
+	.blen			= 0x80,	/* Gain setting is in upper 4 bits */
+	.threshold		= 0x32,
+	.voltage		= 0,	/* 3.3V */
+	.orient			= MXT_VERTICAL_FLIP,
+	.irqflags		= IRQF_TRIGGER_FALLING,
+	.is_tp			= true,
+	.key_map		= { KEY_RESERVED,
+				    KEY_RESERVED,
+				    KEY_RESERVED,
+				    BTN_LEFT },
+	.config			= NULL,
+	.config_length		= 0,
+};
+
+static struct i2c_board_info __initdata atmel_224s_tp_device = {
+	I2C_BOARD_INFO("atmel_mxt_tp", ATMEL_TP_I2C_ADDR),
+	.platform_data = &atmel_224s_tp_platform_data,
+	.flags		= I2C_CLIENT_WAKE,
+};
+
+static struct mxt_platform_data atmel_1664s_platform_data = {
+	.x_line			= 32,
+	.y_line			= 50,
+	.x_size			= 1700,
+	.y_size			= 2560,
+	.blen			= 0x89,	/* Gain setting is in upper 4 bits */
+	.threshold		= 0x28,
+	.voltage		= 0,	/* 3.3V */
+	.orient			= MXT_ROTATED_90_COUNTER,
+	.irqflags		= IRQF_TRIGGER_FALLING,
+	.is_tp			= false,
+	.config			= NULL,
+	.config_length		= 0,
+};
+
+static struct i2c_board_info __initdata atmel_1664s_device = {
+	I2C_BOARD_INFO("atmel_mxt_ts", ATMEL_TS_I2C_ADDR),
+	.platform_data = &atmel_1664s_platform_data,
+	.flags		= I2C_CLIENT_WAKE,
+};
+
+static struct i2c_client __init *__add_probed_i2c_device(
+		const char *name,
+		int bus,
+		struct i2c_board_info *info,
+		const unsigned short *addrs)
+{
+	const struct dmi_device *dmi_dev;
+	const struct dmi_dev_onboard *dev_data;
+	struct i2c_adapter *adapter;
+	struct i2c_client *client;
+
+	if (bus < 0)
+		return NULL;
+	/*
+	 * If a name is specified, look for irq platform information stashed
+	 * in DMI_DEV_TYPE_DEV_ONBOARD by the Chrome OS custom system firmware.
+	 */
+	if (name) {
+		dmi_dev = dmi_find_device(DMI_DEV_TYPE_DEV_ONBOARD, name, NULL);
+		if (!dmi_dev) {
+			pr_err("%s failed to dmi find device %s.\n",
+			       __func__,
+			       name);
+			return NULL;
+		}
+		dev_data = (struct dmi_dev_onboard *)dmi_dev->device_data;
+		if (!dev_data) {
+			pr_err("%s failed to get data from dmi for %s.\n",
+			       __func__, name);
+			return NULL;
+		}
+		info->irq = dev_data->instance;
+	}
+
+	adapter = i2c_get_adapter(bus);
+	if (!adapter) {
+		pr_err("%s failed to get i2c adapter %d.\n", __func__, bus);
+		return NULL;
+	}
+
+	/* add the i2c device */
+	client = i2c_new_probed_device(adapter, info, addrs, NULL);
+	if (!client)
+		pr_err("%s failed to register device %d-%02x\n",
+		       __func__, bus, info->addr);
+	else
+		pr_debug("%s added i2c device %d-%02x\n",
+			 __func__, bus, info->addr);
+
+	i2c_put_adapter(adapter);
+	return client;
+}
+
+static int __init __find_i2c_adap(struct device *dev, void *data)
+{
+	const char *name = data;
+	static const char *prefix = "i2c-";
+	struct i2c_adapter *adapter;
+	if (strncmp(dev_name(dev), prefix, strlen(prefix)) != 0)
+		return 0;
+	adapter = to_i2c_adapter(dev);
+	return (strncmp(adapter->name, name, strlen(name)) == 0);
+}
+
+static int __init find_i2c_adapter_num(enum i2c_adapter_type type)
+{
+	struct device *dev = NULL;
+	struct i2c_adapter *adapter;
+	const char *name = i2c_adapter_names[type];
+	/* find the adapter by name */
+	dev = bus_find_device(&i2c_bus_type, NULL, (void *)name,
+			      __find_i2c_adap);
+	if (!dev) {
+		pr_err("%s: i2c adapter %s not found on system.\n", __func__,
+		       name);
+		return -ENODEV;
+	}
+	adapter = to_i2c_adapter(dev);
+	return adapter->nr;
+}
+
+/*
+ * Takes a list of addresses in addrs as such :
+ * { addr1, ... , addrn, I2C_CLIENT_END };
+ * add_probed_i2c_device will use i2c_new_probed_device
+ * and probe for devices at all of the addresses listed.
+ * Returns NULL if no devices found.
+ * See Documentation/i2c/instantiating-devices for more information.
+ */
+static __init struct i2c_client *add_probed_i2c_device(
+		const char *name,
+		enum i2c_adapter_type type,
+		struct i2c_board_info *info,
+		const unsigned short *addrs)
+{
+	return __add_probed_i2c_device(name,
+				       find_i2c_adapter_num(type),
+				       info,
+				       addrs);
+}
+
+/*
+ * Probes for a device at a single address, the one provided by
+ * info->addr.
+ * Returns NULL if no device found.
+ */
+static __init struct i2c_client *add_i2c_device(const char *name,
+						enum i2c_adapter_type type,
+						struct i2c_board_info *info)
+{
+	const unsigned short addr_list[] = { info->addr, I2C_CLIENT_END };
+	return __add_probed_i2c_device(name,
+				       find_i2c_adapter_num(type),
+				       info,
+				       addr_list);
+}
+
+
+static struct i2c_client __init *add_smbus_device(const char *name,
+						  struct i2c_board_info *info)
+{
+	return add_i2c_device(name, I2C_ADAPTER_SMBUS, info);
+}
+
+static int __init setup_cyapa_smbus_tp(const struct dmi_system_id *id)
+{
+	/* add cyapa touchpad on smbus */
+	tp = add_smbus_device("trackpad", &cyapa_device);
+	return 0;
+}
+
+static int __init setup_atmel_224s_tp(const struct dmi_system_id *id)
+{
+	const unsigned short addr_list[] = { ATMEL_TP_I2C_BL_ADDR,
+					     ATMEL_TP_I2C_ADDR,
+					     I2C_CLIENT_END };
+
+	/* add atmel mxt touchpad on VGA DDC GMBus */
+	tp = add_probed_i2c_device("trackpad", I2C_ADAPTER_VGADDC,
+				   &atmel_224s_tp_device, addr_list);
+	return 0;
+}
+
+static int __init setup_atmel_1664s_ts(const struct dmi_system_id *id)
+{
+	const unsigned short addr_list[] = { ATMEL_TS_I2C_BL_ADDR,
+					     ATMEL_TS_I2C_ADDR,
+					     I2C_CLIENT_END };
+
+	/* add atmel mxt touch device on PANEL GMBus */
+	ts = add_probed_i2c_device("touchscreen", I2C_ADAPTER_PANEL,
+				   &atmel_1664s_device, addr_list);
+	return 0;
+}
+
+
+static int __init setup_isl29018_als(const struct dmi_system_id *id)
+{
+	/* add isl29018 light sensor */
+	als = add_smbus_device("lightsensor", &isl_als_device);
+	return 0;
+}
+
+static int __init setup_isl29023_als(const struct dmi_system_id *id)
+{
+	/* add isl29023 light sensor on Panel GMBus */
+	als = add_i2c_device("lightsensor", I2C_ADAPTER_PANEL,
+			     &isl_als_device);
+	return 0;
+}
+
+static int __init setup_tsl2583_als(const struct dmi_system_id *id)
+{
+	/* add tsl2583 light sensor on smbus */
+	als = add_smbus_device(NULL, &tsl2583_als_device);
+	return 0;
+}
+
+static int __init setup_tsl2563_als(const struct dmi_system_id *id)
+{
+	/* add tsl2563 light sensor on smbus */
+	als = add_smbus_device(NULL, &tsl2563_als_device);
+	return 0;
+}
+
+static struct dmi_system_id __initdata chromeos_laptop_dmi_table[] = {
+	{
+		.ident = "Samsung Series 5 550 - Touchpad",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Lumpy"),
+		},
+		.callback = setup_cyapa_smbus_tp,
+	},
+	{
+		.ident = "Chromebook Pixel - Touchscreen",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Link"),
+		},
+		.callback = setup_atmel_1664s_ts,
+	},
+	{
+		.ident = "Chromebook Pixel - Touchpad",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Link"),
+		},
+		.callback = setup_atmel_224s_tp,
+	},
+	{
+		.ident = "Samsung Series 5 550 - Light Sensor",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Lumpy"),
+		},
+		.callback = setup_isl29018_als,
+	},
+	{
+		.ident = "Chromebook Pixel - Light Sensor",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Link"),
+		},
+		.callback = setup_isl29023_als,
+	},
+	{
+		.ident = "Acer C7 Chromebook - Touchpad",
+		.matches = {
+			DMI_MATCH(DMI_PRODUCT_NAME, "Parrot"),
+		},
+		.callback = setup_cyapa_smbus_tp,
+	},
+	{
+		.ident = "HP Pavilion 14 Chromebook - Touchpad",
+		.matches = {
+			DMI_MATCH(DMI_PRODUCT_NAME, "Butterfly"),
+		},
+		.callback = setup_cyapa_smbus_tp,
+	},
+	{
+		.ident = "Samsung Series 5 - Light Sensor",
+		.matches = {
+			DMI_MATCH(DMI_PRODUCT_NAME, "Alex"),
+		},
+		.callback = setup_tsl2583_als,
+	},
+	{
+		.ident = "Cr-48 - Light Sensor",
+		.matches = {
+			DMI_MATCH(DMI_PRODUCT_NAME, "Mario"),
+		},
+		.callback = setup_tsl2563_als,
+	},
+	{
+		.ident = "Acer AC700 - Light Sensor",
+		.matches = {
+			DMI_MATCH(DMI_PRODUCT_NAME, "ZGB"),
+		},
+		.callback = setup_tsl2563_als,
+	},
+	{ }
+};
+MODULE_DEVICE_TABLE(dmi, chromeos_laptop_dmi_table);
+
+static int __init chromeos_laptop_init(void)
+{
+	if (!dmi_check_system(chromeos_laptop_dmi_table)) {
+		pr_debug("%s unsupported system.\n", __func__);
+		return -ENODEV;
+	}
+	return 0;
+}
+
+static void __exit chromeos_laptop_exit(void)
+{
+	if (als)
+		i2c_unregister_device(als);
+	if (tp)
+		i2c_unregister_device(tp);
+	if (ts)
+		i2c_unregister_device(ts);
+}
+
+module_init(chromeos_laptop_init);
+module_exit(chromeos_laptop_exit);
+
+MODULE_DESCRIPTION("Chrome OS Laptop driver");
+MODULE_AUTHOR("Benson Leung <bleung@chromium.org>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index b51a7460cc49..d9dcd37b5a52 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -79,17 +79,6 @@ config ASUS_LAPTOP
 
 	  If you have an ACPI-compatible ASUS laptop, say Y or M here.
 
-config CHROMEOS_LAPTOP
-	tristate "Chrome OS Laptop"
-	depends on I2C
-	depends on DMI
-	---help---
-	  This driver instantiates i2c and smbus devices such as
-	  light sensors and touchpads.
-
-	  If you have a supported Chromebook, choose Y or M here.
-	  The module will be called chromeos_laptop.
-
 config DELL_LAPTOP
 	tristate "Dell Laptop Extras"
 	depends on X86
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index 5dbe19324351..f0e6aa407ffb 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -50,7 +50,6 @@ obj-$(CONFIG_INTEL_MID_POWER_BUTTON)	+= intel_mid_powerbtn.o
 obj-$(CONFIG_INTEL_OAKTRAIL)	+= intel_oaktrail.o
 obj-$(CONFIG_SAMSUNG_Q10)	+= samsung-q10.o
 obj-$(CONFIG_APPLE_GMUX)	+= apple-gmux.o
-obj-$(CONFIG_CHROMEOS_LAPTOP)	+= chromeos_laptop.o
 obj-$(CONFIG_INTEL_RST)		+= intel-rst.o
 obj-$(CONFIG_INTEL_SMARTCONNECT)	+= intel-smartconnect.o
 
diff --git a/drivers/platform/x86/chromeos_laptop.c b/drivers/platform/x86/chromeos_laptop.c
deleted file mode 100644
index 3e5b4497a1d0..000000000000
--- a/drivers/platform/x86/chromeos_laptop.c
+++ /dev/null
@@ -1,408 +0,0 @@
-/*
- *  chromeos_laptop.c - Driver to instantiate Chromebook i2c/smbus devices.
- *
- *  Author : Benson Leung <bleung@chromium.org>
- *
- *  Copyright (C) 2012 Google, Inc.
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- */
-
-#include <linux/dmi.h>
-#include <linux/i2c.h>
-#include <linux/i2c/atmel_mxt_ts.h>
-#include <linux/input.h>
-#include <linux/interrupt.h>
-#include <linux/module.h>
-
-#define ATMEL_TP_I2C_ADDR	0x4b
-#define ATMEL_TP_I2C_BL_ADDR	0x25
-#define ATMEL_TS_I2C_ADDR	0x4a
-#define ATMEL_TS_I2C_BL_ADDR	0x26
-#define CYAPA_TP_I2C_ADDR	0x67
-#define ISL_ALS_I2C_ADDR	0x44
-#define TAOS_ALS_I2C_ADDR	0x29
-
-static struct i2c_client *als;
-static struct i2c_client *tp;
-static struct i2c_client *ts;
-
-const char *i2c_adapter_names[] = {
-	"SMBus I801 adapter",
-	"i915 gmbus vga",
-	"i915 gmbus panel",
-};
-
-/* Keep this enum consistent with i2c_adapter_names */
-enum i2c_adapter_type {
-	I2C_ADAPTER_SMBUS = 0,
-	I2C_ADAPTER_VGADDC,
-	I2C_ADAPTER_PANEL,
-};
-
-static struct i2c_board_info __initdata cyapa_device = {
-	I2C_BOARD_INFO("cyapa", CYAPA_TP_I2C_ADDR),
-	.flags		= I2C_CLIENT_WAKE,
-};
-
-static struct i2c_board_info __initdata isl_als_device = {
-	I2C_BOARD_INFO("isl29018", ISL_ALS_I2C_ADDR),
-};
-
-static struct i2c_board_info __initdata tsl2583_als_device = {
-	I2C_BOARD_INFO("tsl2583", TAOS_ALS_I2C_ADDR),
-};
-
-static struct i2c_board_info __initdata tsl2563_als_device = {
-	I2C_BOARD_INFO("tsl2563", TAOS_ALS_I2C_ADDR),
-};
-
-static struct mxt_platform_data atmel_224s_tp_platform_data = {
-	.x_line			= 18,
-	.y_line			= 12,
-	.x_size			= 102*20,
-	.y_size			= 68*20,
-	.blen			= 0x80,	/* Gain setting is in upper 4 bits */
-	.threshold		= 0x32,
-	.voltage		= 0,	/* 3.3V */
-	.orient			= MXT_VERTICAL_FLIP,
-	.irqflags		= IRQF_TRIGGER_FALLING,
-	.is_tp			= true,
-	.key_map		= { KEY_RESERVED,
-				    KEY_RESERVED,
-				    KEY_RESERVED,
-				    BTN_LEFT },
-	.config			= NULL,
-	.config_length		= 0,
-};
-
-static struct i2c_board_info __initdata atmel_224s_tp_device = {
-	I2C_BOARD_INFO("atmel_mxt_tp", ATMEL_TP_I2C_ADDR),
-	.platform_data = &atmel_224s_tp_platform_data,
-	.flags		= I2C_CLIENT_WAKE,
-};
-
-static struct mxt_platform_data atmel_1664s_platform_data = {
-	.x_line			= 32,
-	.y_line			= 50,
-	.x_size			= 1700,
-	.y_size			= 2560,
-	.blen			= 0x89,	/* Gain setting is in upper 4 bits */
-	.threshold		= 0x28,
-	.voltage		= 0,	/* 3.3V */
-	.orient			= MXT_ROTATED_90_COUNTER,
-	.irqflags		= IRQF_TRIGGER_FALLING,
-	.is_tp			= false,
-	.config			= NULL,
-	.config_length		= 0,
-};
-
-static struct i2c_board_info __initdata atmel_1664s_device = {
-	I2C_BOARD_INFO("atmel_mxt_ts", ATMEL_TS_I2C_ADDR),
-	.platform_data = &atmel_1664s_platform_data,
-	.flags		= I2C_CLIENT_WAKE,
-};
-
-static struct i2c_client __init *__add_probed_i2c_device(
-		const char *name,
-		int bus,
-		struct i2c_board_info *info,
-		const unsigned short *addrs)
-{
-	const struct dmi_device *dmi_dev;
-	const struct dmi_dev_onboard *dev_data;
-	struct i2c_adapter *adapter;
-	struct i2c_client *client;
-
-	if (bus < 0)
-		return NULL;
-	/*
-	 * If a name is specified, look for irq platform information stashed
-	 * in DMI_DEV_TYPE_DEV_ONBOARD by the Chrome OS custom system firmware.
-	 */
-	if (name) {
-		dmi_dev = dmi_find_device(DMI_DEV_TYPE_DEV_ONBOARD, name, NULL);
-		if (!dmi_dev) {
-			pr_err("%s failed to dmi find device %s.\n",
-			       __func__,
-			       name);
-			return NULL;
-		}
-		dev_data = (struct dmi_dev_onboard *)dmi_dev->device_data;
-		if (!dev_data) {
-			pr_err("%s failed to get data from dmi for %s.\n",
-			       __func__, name);
-			return NULL;
-		}
-		info->irq = dev_data->instance;
-	}
-
-	adapter = i2c_get_adapter(bus);
-	if (!adapter) {
-		pr_err("%s failed to get i2c adapter %d.\n", __func__, bus);
-		return NULL;
-	}
-
-	/* add the i2c device */
-	client = i2c_new_probed_device(adapter, info, addrs, NULL);
-	if (!client)
-		pr_err("%s failed to register device %d-%02x\n",
-		       __func__, bus, info->addr);
-	else
-		pr_debug("%s added i2c device %d-%02x\n",
-			 __func__, bus, info->addr);
-
-	i2c_put_adapter(adapter);
-	return client;
-}
-
-static int __init __find_i2c_adap(struct device *dev, void *data)
-{
-	const char *name = data;
-	static const char *prefix = "i2c-";
-	struct i2c_adapter *adapter;
-	if (strncmp(dev_name(dev), prefix, strlen(prefix)) != 0)
-		return 0;
-	adapter = to_i2c_adapter(dev);
-	return (strncmp(adapter->name, name, strlen(name)) == 0);
-}
-
-static int __init find_i2c_adapter_num(enum i2c_adapter_type type)
-{
-	struct device *dev = NULL;
-	struct i2c_adapter *adapter;
-	const char *name = i2c_adapter_names[type];
-	/* find the adapter by name */
-	dev = bus_find_device(&i2c_bus_type, NULL, (void *)name,
-			      __find_i2c_adap);
-	if (!dev) {
-		pr_err("%s: i2c adapter %s not found on system.\n", __func__,
-		       name);
-		return -ENODEV;
-	}
-	adapter = to_i2c_adapter(dev);
-	return adapter->nr;
-}
-
-/*
- * Takes a list of addresses in addrs as such :
- * { addr1, ... , addrn, I2C_CLIENT_END };
- * add_probed_i2c_device will use i2c_new_probed_device
- * and probe for devices at all of the addresses listed.
- * Returns NULL if no devices found.
- * See Documentation/i2c/instantiating-devices for more information.
- */
-static __init struct i2c_client *add_probed_i2c_device(
-		const char *name,
-		enum i2c_adapter_type type,
-		struct i2c_board_info *info,
-		const unsigned short *addrs)
-{
-	return __add_probed_i2c_device(name,
-				       find_i2c_adapter_num(type),
-				       info,
-				       addrs);
-}
-
-/*
- * Probes for a device at a single address, the one provided by
- * info->addr.
- * Returns NULL if no device found.
- */
-static __init struct i2c_client *add_i2c_device(const char *name,
-						enum i2c_adapter_type type,
-						struct i2c_board_info *info)
-{
-	const unsigned short addr_list[] = { info->addr, I2C_CLIENT_END };
-	return __add_probed_i2c_device(name,
-				       find_i2c_adapter_num(type),
-				       info,
-				       addr_list);
-}
-
-
-static struct i2c_client __init *add_smbus_device(const char *name,
-						  struct i2c_board_info *info)
-{
-	return add_i2c_device(name, I2C_ADAPTER_SMBUS, info);
-}
-
-static int __init setup_cyapa_smbus_tp(const struct dmi_system_id *id)
-{
-	/* add cyapa touchpad on smbus */
-	tp = add_smbus_device("trackpad", &cyapa_device);
-	return 0;
-}
-
-static int __init setup_atmel_224s_tp(const struct dmi_system_id *id)
-{
-	const unsigned short addr_list[] = { ATMEL_TP_I2C_BL_ADDR,
-					     ATMEL_TP_I2C_ADDR,
-					     I2C_CLIENT_END };
-
-	/* add atmel mxt touchpad on VGA DDC GMBus */
-	tp = add_probed_i2c_device("trackpad", I2C_ADAPTER_VGADDC,
-				   &atmel_224s_tp_device, addr_list);
-	return 0;
-}
-
-static int __init setup_atmel_1664s_ts(const struct dmi_system_id *id)
-{
-	const unsigned short addr_list[] = { ATMEL_TS_I2C_BL_ADDR,
-					     ATMEL_TS_I2C_ADDR,
-					     I2C_CLIENT_END };
-
-	/* add atmel mxt touch device on PANEL GMBus */
-	ts = add_probed_i2c_device("touchscreen", I2C_ADAPTER_PANEL,
-				   &atmel_1664s_device, addr_list);
-	return 0;
-}
-
-
-static int __init setup_isl29018_als(const struct dmi_system_id *id)
-{
-	/* add isl29018 light sensor */
-	als = add_smbus_device("lightsensor", &isl_als_device);
-	return 0;
-}
-
-static int __init setup_isl29023_als(const struct dmi_system_id *id)
-{
-	/* add isl29023 light sensor on Panel GMBus */
-	als = add_i2c_device("lightsensor", I2C_ADAPTER_PANEL,
-			     &isl_als_device);
-	return 0;
-}
-
-static int __init setup_tsl2583_als(const struct dmi_system_id *id)
-{
-	/* add tsl2583 light sensor on smbus */
-	als = add_smbus_device(NULL, &tsl2583_als_device);
-	return 0;
-}
-
-static int __init setup_tsl2563_als(const struct dmi_system_id *id)
-{
-	/* add tsl2563 light sensor on smbus */
-	als = add_smbus_device(NULL, &tsl2563_als_device);
-	return 0;
-}
-
-static struct dmi_system_id __initdata chromeos_laptop_dmi_table[] = {
-	{
-		.ident = "Samsung Series 5 550 - Touchpad",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Lumpy"),
-		},
-		.callback = setup_cyapa_smbus_tp,
-	},
-	{
-		.ident = "Chromebook Pixel - Touchscreen",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Link"),
-		},
-		.callback = setup_atmel_1664s_ts,
-	},
-	{
-		.ident = "Chromebook Pixel - Touchpad",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Link"),
-		},
-		.callback = setup_atmel_224s_tp,
-	},
-	{
-		.ident = "Samsung Series 5 550 - Light Sensor",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Lumpy"),
-		},
-		.callback = setup_isl29018_als,
-	},
-	{
-		.ident = "Chromebook Pixel - Light Sensor",
-		.matches = {
-			DMI_MATCH(DMI_SYS_VENDOR, "GOOGLE"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "Link"),
-		},
-		.callback = setup_isl29023_als,
-	},
-	{
-		.ident = "Acer C7 Chromebook - Touchpad",
-		.matches = {
-			DMI_MATCH(DMI_PRODUCT_NAME, "Parrot"),
-		},
-		.callback = setup_cyapa_smbus_tp,
-	},
-	{
-		.ident = "HP Pavilion 14 Chromebook - Touchpad",
-		.matches = {
-			DMI_MATCH(DMI_PRODUCT_NAME, "Butterfly"),
-		},
-		.callback = setup_cyapa_smbus_tp,
-	},
-	{
-		.ident = "Samsung Series 5 - Light Sensor",
-		.matches = {
-			DMI_MATCH(DMI_PRODUCT_NAME, "Alex"),
-		},
-		.callback = setup_tsl2583_als,
-	},
-	{
-		.ident = "Cr-48 - Light Sensor",
-		.matches = {
-			DMI_MATCH(DMI_PRODUCT_NAME, "Mario"),
-		},
-		.callback = setup_tsl2563_als,
-	},
-	{
-		.ident = "Acer AC700 - Light Sensor",
-		.matches = {
-			DMI_MATCH(DMI_PRODUCT_NAME, "ZGB"),
-		},
-		.callback = setup_tsl2563_als,
-	},
-	{ }
-};
-MODULE_DEVICE_TABLE(dmi, chromeos_laptop_dmi_table);
-
-static int __init chromeos_laptop_init(void)
-{
-	if (!dmi_check_system(chromeos_laptop_dmi_table)) {
-		pr_debug("%s unsupported system.\n", __func__);
-		return -ENODEV;
-	}
-	return 0;
-}
-
-static void __exit chromeos_laptop_exit(void)
-{
-	if (als)
-		i2c_unregister_device(als);
-	if (tp)
-		i2c_unregister_device(tp);
-	if (ts)
-		i2c_unregister_device(ts);
-}
-
-module_init(chromeos_laptop_init);
-module_exit(chromeos_laptop_exit);
-
-MODULE_DESCRIPTION("Chrome OS Laptop driver");
-MODULE_AUTHOR("Benson Leung <bleung@chromium.org>");
-MODULE_LICENSE("GPL");
-- 
cgit 


From cab6661344f14a09d7aecdf821a40f68ef9b18cc Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 24 Oct 2013 16:06:32 +0200
Subject: thinkpad_acpi: Fix build error when CONFIG_SND_MAX_CARDS > 32

SNDRV_CARDS can be specified via Kconfig since 3.11 kernel, so this
can be over 32bit integer range, which leads to a build error.

Cc: <stable@vger.kernel.org> [v3.11+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/thinkpad_acpi.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index a5e99d749246..58b0274d24cc 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -6438,7 +6438,12 @@ static struct ibm_struct brightness_driver_data = {
 #define TPACPI_ALSA_SHRTNAME "ThinkPad Console Audio Control"
 #define TPACPI_ALSA_MIXERNAME TPACPI_ALSA_SHRTNAME
 
-static int alsa_index = ~((1 << (SNDRV_CARDS - 3)) - 1); /* last three slots */
+#if SNDRV_CARDS <= 32
+#define DEFAULT_ALSA_IDX		~((1 << (SNDRV_CARDS - 3)) - 1)
+#else
+#define DEFAULT_ALSA_IDX		~((1 << (32 - 3)) - 1)
+#endif
+static int alsa_index = DEFAULT_ALSA_IDX; /* last three slots */
 static char *alsa_id = "ThinkPadEC";
 static bool alsa_enable = SNDRV_DEFAULT_ENABLE1;
 
-- 
cgit 


From e97a1c981723f3b7620b124859383a457b12f06f Mon Sep 17 00:00:00 2001
From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Date: Thu, 14 Nov 2013 14:15:04 -0800
Subject: ipc: Added platform data structure

Since the same ipc driver can be used by many platforms, using
macros for defining ipc_base and i2c_base addresses is not
a scalable approach. So added a platform data structure to pass
this information.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Acked-by: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Cc: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/intel_scu_ipc.c | 37 ++++++++++++++++++++++++++++--------
 1 file changed, 29 insertions(+), 8 deletions(-)

diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
index d654f831410d..39ff57bdf18f 100644
--- a/drivers/platform/x86/intel_scu_ipc.c
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -58,12 +58,29 @@
  *    message handler is called within firmware.
  */
 
-#define IPC_BASE_ADDR     0xFF11C000	/* IPC1 base register address */
-#define IPC_MAX_ADDR      0x100		/* Maximum IPC regisers */
 #define IPC_WWBUF_SIZE    20		/* IPC Write buffer Size */
 #define IPC_RWBUF_SIZE    20		/* IPC Read buffer Size */
-#define IPC_I2C_BASE      0xFF12B000	/* I2C control register base address */
-#define IPC_I2C_MAX_ADDR  0x10		/* Maximum I2C regisers */
+
+enum {
+	SCU_IPC_LINCROFT,
+};
+
+/* intel scu ipc driver data*/
+struct intel_scu_ipc_pdata_t {
+	u32 ipc_base;
+	u32 i2c_base;
+	u32 ipc_len;
+	u32 i2c_len;
+};
+
+static struct intel_scu_ipc_pdata_t intel_scu_ipc_pdata[] = {
+	[SCU_IPC_LINCROFT] = {
+		.ipc_base = 0xff11c000,
+		.i2c_base = 0xff12b000,
+		.ipc_len = 0x100,
+		.i2c_len = 0x10,
+	},
+};
 
 static int ipc_probe(struct pci_dev *dev, const struct pci_device_id *id);
 static void ipc_remove(struct pci_dev *pdev);
@@ -504,12 +521,16 @@ static irqreturn_t ioc(int irq, void *dev_id)
  */
 static int ipc_probe(struct pci_dev *dev, const struct pci_device_id *id)
 {
-	int err;
+	int err, pid;
+	struct intel_scu_ipc_pdata_t *pdata;
 	resource_size_t pci_resource;
 
 	if (ipcdev.pdev)		/* We support only one SCU */
 		return -EBUSY;
 
+	pid = id->driver_data;
+	pdata = &intel_scu_ipc_pdata[pid];
+
 	ipcdev.pdev = pci_dev_get(dev);
 
 	err = pci_enable_device(dev);
@@ -527,11 +548,11 @@ static int ipc_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	if (request_irq(dev->irq, ioc, 0, "intel_scu_ipc", &ipcdev))
 		return -EBUSY;
 
-	ipcdev.ipc_base = ioremap_nocache(IPC_BASE_ADDR, IPC_MAX_ADDR);
+	ipcdev.ipc_base = ioremap_nocache(pdata->ipc_base, pdata->ipc_len);
 	if (!ipcdev.ipc_base)
 		return -ENOMEM;
 
-	ipcdev.i2c_base = ioremap_nocache(IPC_I2C_BASE, IPC_I2C_MAX_ADDR);
+	ipcdev.i2c_base = ioremap_nocache(pdata->i2c_base, pdata->i2c_len);
 	if (!ipcdev.i2c_base) {
 		iounmap(ipcdev.ipc_base);
 		return -ENOMEM;
@@ -564,7 +585,7 @@ static void ipc_remove(struct pci_dev *pdev)
 }
 
 static DEFINE_PCI_DEVICE_TABLE(pci_ids) = {
-	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x082a)},
+	{PCI_VDEVICE(INTEL, 0x082a), SCU_IPC_LINCROFT},
 	{ 0,}
 };
 MODULE_DEVICE_TABLE(pci, pci_ids);
-- 
cgit 


From 7f95afb317d94f383877e67dc52fda17dc37fa21 Mon Sep 17 00:00:00 2001
From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Date: Thu, 14 Nov 2013 14:15:05 -0800
Subject: ipc: Enabled ipc support for additional intel platforms

Enabled ipc support for penwell, clovertrail & tangier platforms.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Cc: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/intel_scu_ipc.c | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
index 39ff57bdf18f..86b6ce2a7a47 100644
--- a/drivers/platform/x86/intel_scu_ipc.c
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -63,6 +63,9 @@
 
 enum {
 	SCU_IPC_LINCROFT,
+	SCU_IPC_PENWELL,
+	SCU_IPC_CLOVERVIEW,
+	SCU_IPC_TANGIER,
 };
 
 /* intel scu ipc driver data*/
@@ -80,6 +83,24 @@ static struct intel_scu_ipc_pdata_t intel_scu_ipc_pdata[] = {
 		.ipc_len = 0x100,
 		.i2c_len = 0x10,
 	},
+	[SCU_IPC_PENWELL] = {
+		.ipc_base = 0xff11c000,
+		.i2c_base = 0xff12b000,
+		.ipc_len = 0x100,
+		.i2c_len = 0x10,
+	},
+	[SCU_IPC_CLOVERVIEW] = {
+		.ipc_base = 0xff11c000,
+		.i2c_base = 0xff12b000,
+		.ipc_len = 0x100,
+		.i2c_len = 0x10,
+	},
+	[SCU_IPC_TANGIER] = {
+		.ipc_base = 0xff009000,
+		.i2c_base  = 0xff00d000,
+		.ipc_len  = 0x100,
+		.i2c_len = 0x10,
+	},
 };
 
 static int ipc_probe(struct pci_dev *dev, const struct pci_device_id *id);
@@ -586,6 +607,9 @@ static void ipc_remove(struct pci_dev *pdev)
 
 static DEFINE_PCI_DEVICE_TABLE(pci_ids) = {
 	{PCI_VDEVICE(INTEL, 0x082a), SCU_IPC_LINCROFT},
+	{PCI_VDEVICE(INTEL, 0x080e), SCU_IPC_PENWELL},
+	{PCI_VDEVICE(INTEL, 0x08ea), SCU_IPC_CLOVERVIEW},
+	{PCI_VDEVICE(INTEL, 0x11a0), SCU_IPC_TANGIER},
 	{ 0,}
 };
 MODULE_DEVICE_TABLE(pci, pci_ids);
-- 
cgit 


From c7094d1d994c23950d8a55d33dcb7ed6d9b13f8f Mon Sep 17 00:00:00 2001
From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Date: Thu, 14 Nov 2013 14:15:06 -0800
Subject: ipc: Handle error conditions in ipc command

Handle error conditions in intel_scu_ipc_command() and
pwr_reg_rdwr().

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/intel_scu_ipc.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
index 86b6ce2a7a47..e26830f6c8dd 100644
--- a/drivers/platform/x86/intel_scu_ipc.c
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -235,7 +235,7 @@ static int pwr_reg_rdwr(u16 *addr, u8 *data, u32 count, u32 op, u32 id)
 	}
 
 	err = busy_loop();
-	if (id == IPC_CMD_PCNTRL_R) { /* Read rbuf */
+	if (!err && id == IPC_CMD_PCNTRL_R) { /* Read rbuf */
 		/* Workaround: values are read as 0 without memcpy_fromio */
 		memcpy_fromio(cbuf, ipcdev.ipc_base + 0x90, 16);
 		for (nc = 0; nc < count; nc++)
@@ -465,8 +465,10 @@ int intel_scu_ipc_command(int cmd, int sub, u32 *in, int inlen,
 	ipc_command((inlen << 16) | (sub << 12) | cmd);
 	err = busy_loop();
 
-	for (i = 0; i < outlen; i++)
-		*out++ = ipc_data_readl(4 * i);
+	if (!err) {
+		for (i = 0; i < outlen; i++)
+			*out++ = ipc_data_readl(4 * i);
+	}
 
 	mutex_unlock(&ipclock);
 	return err;
-- 
cgit 


From 51468a9d3a80249a218a854100c6d5d0eb8b781e Mon Sep 17 00:00:00 2001
From: Al Stone <al.stone@linaro.org>
Date: Wed, 20 Nov 2013 15:45:51 -0700
Subject: ACPI / sleep: clean up compiler warning about uninitialized field

Initialize pwr_btn_status as disabled which (a) makes sure it is
in a proper state to start, and (b) cleans up a compiler warning
about an uninitialized variable.

Signed-off-by: Al Stone <al.stone@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/sleep.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 14df30580e15..721e949e606e 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -525,7 +525,7 @@ static int acpi_suspend_enter(suspend_state_t pm_state)
 	 * generate wakeup events.
 	 */
 	if (ACPI_SUCCESS(status) && (acpi_state == ACPI_STATE_S3)) {
-		acpi_event_status pwr_btn_status;
+		acpi_event_status pwr_btn_status = ACPI_EVENT_FLAG_DISABLED;
 
 		acpi_get_event_status(ACPI_EVENT_POWER_BUTTON, &pwr_btn_status);
 
-- 
cgit 


From ed12f295bfd5c378970106891f12999589aec4e5 Mon Sep 17 00:00:00 2001
From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Date: Fri, 15 Nov 2013 16:21:54 -0800
Subject: ipc: Added support for IPC interrupt mode

This patch adds support for ipc command interrupt mode.
Also added platform data option to select 'irq_mode'

irq_mode = 1: configure the driver to receive IOC interrupt
for each successful ipc_command.

irq_mode = 0: makes driver use polling method to
track the command completion status.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/intel_scu_ipc.c | 48 +++++++++++++++++++++++++++++++++---
 1 file changed, 45 insertions(+), 3 deletions(-)

diff --git a/drivers/platform/x86/intel_scu_ipc.c b/drivers/platform/x86/intel_scu_ipc.c
index e26830f6c8dd..60ea476a9130 100644
--- a/drivers/platform/x86/intel_scu_ipc.c
+++ b/drivers/platform/x86/intel_scu_ipc.c
@@ -60,6 +60,7 @@
 
 #define IPC_WWBUF_SIZE    20		/* IPC Write buffer Size */
 #define IPC_RWBUF_SIZE    20		/* IPC Read buffer Size */
+#define IPC_IOC	          0x100		/* IPC command register IOC bit */
 
 enum {
 	SCU_IPC_LINCROFT,
@@ -74,6 +75,7 @@ struct intel_scu_ipc_pdata_t {
 	u32 i2c_base;
 	u32 ipc_len;
 	u32 i2c_len;
+	u8 irq_mode;
 };
 
 static struct intel_scu_ipc_pdata_t intel_scu_ipc_pdata[] = {
@@ -82,24 +84,28 @@ static struct intel_scu_ipc_pdata_t intel_scu_ipc_pdata[] = {
 		.i2c_base = 0xff12b000,
 		.ipc_len = 0x100,
 		.i2c_len = 0x10,
+		.irq_mode = 0,
 	},
 	[SCU_IPC_PENWELL] = {
 		.ipc_base = 0xff11c000,
 		.i2c_base = 0xff12b000,
 		.ipc_len = 0x100,
 		.i2c_len = 0x10,
+		.irq_mode = 1,
 	},
 	[SCU_IPC_CLOVERVIEW] = {
 		.ipc_base = 0xff11c000,
 		.i2c_base = 0xff12b000,
 		.ipc_len = 0x100,
 		.i2c_len = 0x10,
+		.irq_mode = 1,
 	},
 	[SCU_IPC_TANGIER] = {
 		.ipc_base = 0xff009000,
 		.i2c_base  = 0xff00d000,
 		.ipc_len  = 0x100,
 		.i2c_len = 0x10,
+		.irq_mode = 0,
 	},
 };
 
@@ -110,6 +116,8 @@ struct intel_scu_ipc_dev {
 	struct pci_dev *pdev;
 	void __iomem *ipc_base;
 	void __iomem *i2c_base;
+	struct completion cmd_complete;
+	u8 irq_mode;
 };
 
 static struct intel_scu_ipc_dev  ipcdev; /* Only one for now */
@@ -136,6 +144,10 @@ static DEFINE_MUTEX(ipclock); /* lock used to prevent multiple call to SCU */
  */
 static inline void ipc_command(u32 cmd) /* Send ipc command */
 {
+	if (ipcdev.irq_mode) {
+		reinit_completion(&ipcdev.cmd_complete);
+		writel(cmd | IPC_IOC, ipcdev.ipc_base);
+	}
 	writel(cmd, ipcdev.ipc_base);
 }
 
@@ -194,6 +206,30 @@ static inline int busy_loop(void) /* Wait till scu status is busy */
 	return 0;
 }
 
+/* Wait till ipc ioc interrupt is received or timeout in 3 HZ */
+static inline int ipc_wait_for_interrupt(void)
+{
+	int status;
+
+	if (!wait_for_completion_timeout(&ipcdev.cmd_complete, 3 * HZ)) {
+		struct device *dev = &ipcdev.pdev->dev;
+		dev_err(dev, "IPC timed out\n");
+		return -ETIMEDOUT;
+	}
+
+	status = ipc_read_status();
+
+	if ((status >> 1) & 1)
+		return -EIO;
+
+	return 0;
+}
+
+int intel_scu_ipc_check_status(void)
+{
+	return ipcdev.irq_mode ? ipc_wait_for_interrupt() : busy_loop();
+}
+
 /* Read/Write power control(PMIC in Langwell, MSIC in PenWell) registers */
 static int pwr_reg_rdwr(u16 *addr, u8 *data, u32 count, u32 op, u32 id)
 {
@@ -234,7 +270,7 @@ static int pwr_reg_rdwr(u16 *addr, u8 *data, u32 count, u32 op, u32 id)
 		ipc_command(4 << 16 |  id << 12 | 0 << 8 | op);
 	}
 
-	err = busy_loop();
+	err = intel_scu_ipc_check_status();
 	if (!err && id == IPC_CMD_PCNTRL_R) { /* Read rbuf */
 		/* Workaround: values are read as 0 without memcpy_fromio */
 		memcpy_fromio(cbuf, ipcdev.ipc_base + 0x90, 16);
@@ -429,7 +465,7 @@ int intel_scu_ipc_simple_command(int cmd, int sub)
 		return -ENODEV;
 	}
 	ipc_command(sub << 12 | cmd);
-	err = busy_loop();
+	err = intel_scu_ipc_check_status();
 	mutex_unlock(&ipclock);
 	return err;
 }
@@ -463,7 +499,7 @@ int intel_scu_ipc_command(int cmd, int sub, u32 *in, int inlen,
 		ipc_data_writel(*in++, 4 * i);
 
 	ipc_command((inlen << 16) | (sub << 12) | cmd);
-	err = busy_loop();
+	err = intel_scu_ipc_check_status();
 
 	if (!err) {
 		for (i = 0; i < outlen; i++)
@@ -531,6 +567,9 @@ EXPORT_SYMBOL(intel_scu_ipc_i2c_cntrl);
  */
 static irqreturn_t ioc(int irq, void *dev_id)
 {
+	if (ipcdev.irq_mode)
+		complete(&ipcdev.cmd_complete);
+
 	return IRQ_HANDLED;
 }
 
@@ -555,6 +594,7 @@ static int ipc_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	pdata = &intel_scu_ipc_pdata[pid];
 
 	ipcdev.pdev = pci_dev_get(dev);
+	ipcdev.irq_mode = pdata->irq_mode;
 
 	err = pci_enable_device(dev);
 	if (err)
@@ -568,6 +608,8 @@ static int ipc_probe(struct pci_dev *dev, const struct pci_device_id *id)
 	if (!pci_resource)
 		return -ENOMEM;
 
+	init_completion(&ipcdev.cmd_complete);
+
 	if (request_irq(dev->irq, ioc, 0, "intel_scu_ipc", &ipcdev))
 		return -EBUSY;
 
-- 
cgit 


From a80e1053aaa395d94fff5ab7c73c89bb0c28c3c5 Mon Sep 17 00:00:00 2001
From: Prarit Bhargava <prarit@redhat.com>
Date: Thu, 3 Oct 2013 19:23:36 -0400
Subject: x86, wmi fix modalias_show return values

I just fixed this same bug in arch/powerpc/kernel/vio.c and took a quick
look for other similar errors in the kernel.

modalias_show() should return an empty string on error, not errno.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Cc: Matthew Garrett <matthew.garrett@nebula.com>
Signed-off-by: Matthew Garrett <matthew.garrett@nebula.com>
---
 drivers/platform/x86/wmi.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index 62e8c221d01e..c2e7b2657aeb 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -672,8 +672,10 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
 	struct wmi_block *wblock;
 
 	wblock = dev_get_drvdata(dev);
-	if (!wblock)
-		return -ENOMEM;
+	if (!wblock) {
+		strcat(buf, "\n");
+		return strlen(buf);
+	}
 
 	wmi_gtoa(wblock->gblock.guid, guid_string);
 
-- 
cgit 


From 4724b106b9b8e8b802ca6f6d8a2f74feb8a3c375 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Tue, 5 Nov 2013 11:11:40 -0500
Subject: Btrfs: don't BUG_ON() if we get an error walking backrefs

We can just return false for this so we stop doing the snapshot aware defrag
stuff.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/inode.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index da8d2f696ac5..fd67b34e220d 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -2129,7 +2129,8 @@ static noinline bool record_extent_backrefs(struct btrfs_path *path,
 						  old->extent_offset, fs_info,
 						  path, record_one_backref,
 						  old);
-		BUG_ON(ret < 0 && ret != -ENOENT);
+		if (ret < 0 && ret != -ENOENT)
+			return false;
 
 		/* no backref to be processed for this extent */
 		if (!old->count) {
-- 
cgit 


From 6cfab851f42edcfa72763b3cb8dc26b8fd74e203 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Tue, 12 Nov 2013 16:25:58 -0500
Subject: Btrfs: make sure to copy everything if we rename

If we rename a file that is already in the log and we fsync again we will lose
the new name.  This is because we just log the inode update and not the new ref.
To fix this we just need to check if we are logging the new name of the inode
and copy all the metadata instead of just updating the inode itself.  With this
patch my testcase now passes.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/tree-log.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index 744553c83fe2..b0c7134162fb 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -3697,7 +3697,8 @@ static int btrfs_log_inode(struct btrfs_trans_handle *trans,
 			ret = btrfs_truncate_inode_items(trans, log,
 							 inode, 0, 0);
 		} else if (test_and_clear_bit(BTRFS_INODE_COPY_EVERYTHING,
-					      &BTRFS_I(inode)->runtime_flags)) {
+					      &BTRFS_I(inode)->runtime_flags) ||
+			   inode_only == LOG_INODE_EXISTS) {
 			if (inode_only == LOG_INODE_ALL)
 				fast_search = true;
 			max_key.type = BTRFS_XATTR_ITEM_KEY;
-- 
cgit 


From d006a04816a306995cd9d394079652a7462f81f8 Mon Sep 17 00:00:00 2001
From: Josef Bacik <jbacik@fusionio.com>
Date: Tue, 12 Nov 2013 20:54:09 -0500
Subject: Btrfs: only drop modified extents if we logged the whole inode

If we fsync, seek and write, rename and then fsync again we will lose the
modified hole extent because the rename will drop all of the modified extents
since we didn't do the fast search.  We need to only drop the modified extents
if we didn't do the fast search and we were logging the entire inode as we don't
need them anymore, otherwise this is being premature.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/tree-log.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
index b0c7134162fb..9f7fc51ca334 100644
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -3802,7 +3802,7 @@ log_extents:
 			err = ret;
 			goto out_unlock;
 		}
-	} else {
+	} else if (inode_only == LOG_INODE_ALL) {
 		struct extent_map_tree *tree = &BTRFS_I(inode)->extent_tree;
 		struct extent_map *em, *n;
 
-- 
cgit 


From 33ef30add16905f99bbe799ee5ccea15ba497803 Mon Sep 17 00:00:00 2001
From: Ilya Dryomov <idryomov@gmail.com>
Date: Sun, 3 Nov 2013 19:06:38 +0200
Subject: Btrfs: do not inc uncorrectable_errors counter on ro scrubs

Currently if we discover an error when scrubbing in ro mode we a)
blindly increment the uncorrectable_errors counter, and b) spam the
dmesg with the 'unable to fixup (regular) error at ...' message, even
though a) we haven't tried to determine if the error is correctable or
not, and b) we haven't tried to fixup anything.  Fix this.

Cc: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/scrub.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 2544805544f0..561e2f16ba3e 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -938,8 +938,10 @@ static int scrub_handle_errored_block(struct scrub_block *sblock_to_check)
 				BTRFS_DEV_STAT_CORRUPTION_ERRS);
 	}
 
-	if (sctx->readonly && !sctx->is_dev_replace)
-		goto did_not_correct_error;
+	if (sctx->readonly) {
+		ASSERT(!sctx->is_dev_replace);
+		goto out;
+	}
 
 	if (!is_metadata && !have_csum) {
 		struct scrub_fixup_nodatasum *fixup_nodatasum;
-- 
cgit 


From 908960c6c0fb3b3ce3971dc0ca47b581d256b968 Mon Sep 17 00:00:00 2001
From: Ilya Dryomov <idryomov@gmail.com>
Date: Sun, 3 Nov 2013 19:06:39 +0200
Subject: Btrfs: disable online raid-repair on ro mounts

This disables the "if needed, write the good copy back before the read
is completed" part of the read sequence for read-only mounts.

Cc: Jan Schmidt <list.btrfs@jan-o-sch.net>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/extent_io.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 856bc2b2192c..8e457fca0a0b 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -1980,6 +1980,7 @@ int repair_io_failure(struct btrfs_fs_info *fs_info, u64 start,
 	struct btrfs_mapping_tree *map_tree = &fs_info->mapping_tree;
 	int ret;
 
+	ASSERT(!(fs_info->sb->s_flags & MS_RDONLY));
 	BUG_ON(!mirror_num);
 
 	/* we can't repair anything in raid56 yet */
@@ -2036,6 +2037,9 @@ int repair_eb_io_failure(struct btrfs_root *root, struct extent_buffer *eb,
 	unsigned long i, num_pages = num_extent_pages(eb->start, eb->len);
 	int ret = 0;
 
+	if (root->fs_info->sb->s_flags & MS_RDONLY)
+		return -EROFS;
+
 	for (i = 0; i < num_pages; i++) {
 		struct page *p = extent_buffer_page(eb, i);
 		ret = repair_io_failure(root->fs_info, start, PAGE_CACHE_SIZE,
@@ -2057,12 +2061,12 @@ static int clean_io_failure(u64 start, struct page *page)
 	u64 private;
 	u64 private_failure;
 	struct io_failure_record *failrec;
-	struct btrfs_fs_info *fs_info;
+	struct inode *inode = page->mapping->host;
+	struct btrfs_fs_info *fs_info = BTRFS_I(inode)->root->fs_info;
 	struct extent_state *state;
 	int num_copies;
 	int did_repair = 0;
 	int ret;
-	struct inode *inode = page->mapping->host;
 
 	private = 0;
 	ret = count_range_bits(&BTRFS_I(inode)->io_failure_tree, &private,
@@ -2085,6 +2089,8 @@ static int clean_io_failure(u64 start, struct page *page)
 		did_repair = 1;
 		goto out;
 	}
+	if (fs_info->sb->s_flags & MS_RDONLY)
+		goto out;
 
 	spin_lock(&BTRFS_I(inode)->io_tree.lock);
 	state = find_first_extent_bit_state(&BTRFS_I(inode)->io_tree,
@@ -2094,7 +2100,6 @@ static int clean_io_failure(u64 start, struct page *page)
 
 	if (state && state->start <= failrec->start &&
 	    state->end >= failrec->start + failrec->len - 1) {
-		fs_info = BTRFS_I(inode)->root->fs_info;
 		num_copies = btrfs_num_copies(fs_info, failrec->logical,
 					      failrec->len);
 		if (num_copies > 1)  {
-- 
cgit 


From ba69994a40b242bef26ab2683ea84aa29e2e429f Mon Sep 17 00:00:00 2001
From: Ilya Dryomov <idryomov@gmail.com>
Date: Sun, 3 Nov 2013 19:06:40 +0200
Subject: Btrfs: fix __btrfs_start_workers retval

__btrfs_start_workers returns 0 in case it raced with
btrfs_stop_workers and lost the race.  This is wrong because worker in
this case is not allowed to start and is in fact destroyed.  Return
-EINVAL instead.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/async-thread.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/btrfs/async-thread.c b/fs/btrfs/async-thread.c
index 8aec751fa464..c1e0b0caf9cc 100644
--- a/fs/btrfs/async-thread.c
+++ b/fs/btrfs/async-thread.c
@@ -495,6 +495,7 @@ static int __btrfs_start_workers(struct btrfs_workers *workers)
 	spin_lock_irq(&workers->lock);
 	if (workers->stopping) {
 		spin_unlock_irq(&workers->lock);
+		ret = -EINVAL;
 		goto fail_kthread;
 	}
 	list_add_tail(&worker->worker_list, &workers->idle_list);
-- 
cgit 


From d52c1bcc647ca41ee563bc38d8231e5f3816112c Mon Sep 17 00:00:00 2001
From: Liu Bo <bo.li.liu@oracle.com>
Date: Tue, 5 Nov 2013 11:45:53 +0800
Subject: Btrfs: avoid heavy operations in btrfs_commit_super

The 'git blame' history shows that, the old transaction commit code has to do
twice to ensure roots are updated and we have to flush metadata and super block
manually, however, right now all of these can be handled well inside
the transaction commit code without extra efforts.

And the error handling part remains same with the current code, -- 'return to
caller once we get error'.

This saves us a transaction commit and a flush of super block, which are both
heavy operations according to ftrace output analysis.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/disk-io.c | 21 +--------------------
 1 file changed, 1 insertion(+), 20 deletions(-)

diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c
index 4c4ed0bb3da1..8072cfa8a3b1 100644
--- a/fs/btrfs/disk-io.c
+++ b/fs/btrfs/disk-io.c
@@ -3517,7 +3517,6 @@ int btrfs_cleanup_fs_roots(struct btrfs_fs_info *fs_info)
 int btrfs_commit_super(struct btrfs_root *root)
 {
 	struct btrfs_trans_handle *trans;
-	int ret;
 
 	mutex_lock(&root->fs_info->cleaner_mutex);
 	btrfs_run_delayed_iputs(root);
@@ -3531,25 +3530,7 @@ int btrfs_commit_super(struct btrfs_root *root)
 	trans = btrfs_join_transaction(root);
 	if (IS_ERR(trans))
 		return PTR_ERR(trans);
-	ret = btrfs_commit_transaction(trans, root);
-	if (ret)
-		return ret;
-	/* run commit again to drop the original snapshot */
-	trans = btrfs_join_transaction(root);
-	if (IS_ERR(trans))
-		return PTR_ERR(trans);
-	ret = btrfs_commit_transaction(trans, root);
-	if (ret)
-		return ret;
-	ret = btrfs_write_and_wait_transaction(NULL, root);
-	if (ret) {
-		btrfs_error(root->fs_info, ret,
-			    "Failed to sync btree inode to disk.");
-		return ret;
-	}
-
-	ret = write_ctree_super(NULL, root, 0);
-	return ret;
+	return btrfs_commit_transaction(trans, root);
 }
 
 int close_ctree(struct btrfs_root *root)
-- 
cgit 


From b1a06a4b574996692b72b742bf6e6aa0c711a948 Mon Sep 17 00:00:00 2001
From: Liu Bo <bo.li.liu@oracle.com>
Date: Wed, 6 Nov 2013 16:57:55 +0800
Subject: Btrfs: fix lockdep error in async commit

Lockdep complains about btrfs's async commit:

[ 2372.462171] [ BUG: bad unlock balance detected! ]
[ 2372.462191] 3.12.0+ #32 Tainted: G        W
[ 2372.462209] -------------------------------------
[ 2372.462228] ceph-osd/14048 is trying to release lock (sb_internal) at:
[ 2372.462275] [<ffffffffa022cb10>] btrfs_commit_transaction_async+0x1b0/0x2a0 [btrfs]
[ 2372.462305] but there are no more locks to release!
[ 2372.462324]
[ 2372.462324] other info that might help us debug this:
[ 2372.462349] no locks held by ceph-osd/14048.
[ 2372.462367]
[ 2372.462367] stack backtrace:
[ 2372.462386] CPU: 2 PID: 14048 Comm: ceph-osd Tainted: G        W    3.12.0+ #32
[ 2372.462414] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./To be filled by O.E.M., BIOS 080015  11/09/2011
[ 2372.462455]  ffffffffa022cb10 ffff88007490fd28 ffffffff816f094a ffff8800378aa320
[ 2372.462491]  ffff88007490fd50 ffffffff810adf4c ffff8800378aa320 ffff88009af97650
[ 2372.462526]  ffffffffa022cb10 ffff88007490fd88 ffffffff810b01ee ffff8800898c0000
[ 2372.462562] Call Trace:
[ 2372.462584]  [<ffffffffa022cb10>] ? btrfs_commit_transaction_async+0x1b0/0x2a0 [btrfs]
[ 2372.462619]  [<ffffffff816f094a>] dump_stack+0x45/0x56
[ 2372.462642]  [<ffffffff810adf4c>] print_unlock_imbalance_bug+0xec/0x100
[ 2372.462677]  [<ffffffffa022cb10>] ? btrfs_commit_transaction_async+0x1b0/0x2a0 [btrfs]
[ 2372.462710]  [<ffffffff810b01ee>] lock_release+0x18e/0x210
[ 2372.462742]  [<ffffffffa022cb36>] btrfs_commit_transaction_async+0x1d6/0x2a0 [btrfs]
[ 2372.462783]  [<ffffffffa025a7ce>] btrfs_ioctl_start_sync+0x3e/0xc0 [btrfs]
[ 2372.462822]  [<ffffffffa025f1d3>] btrfs_ioctl+0x4c3/0x1f70 [btrfs]
[ 2372.462849]  [<ffffffff812c0321>] ? avc_has_perm+0x121/0x1b0
[ 2372.462873]  [<ffffffff812c0224>] ? avc_has_perm+0x24/0x1b0
[ 2372.462897]  [<ffffffff8107ecc8>] ? sched_clock_cpu+0xa8/0x100
[ 2372.462922]  [<ffffffff8117b145>] do_vfs_ioctl+0x2e5/0x4e0
[ 2372.462946]  [<ffffffff812c19e6>] ? file_has_perm+0x86/0xa0
[ 2372.462969]  [<ffffffff8117b3c1>] SyS_ioctl+0x81/0xa0
[ 2372.462991]  [<ffffffff817045a4>] tracesys+0xdd/0xe2

====================================================

It's because that we don't do the right thing when checking if it's ok to
tell lockdep that we're trying to release the rwsem.

If the trans handle's type is TRANS_ATTACH, we won't acquire the freeze rwsem, but
as TRANS_ATTACH fits the check (trans < TRANS_JOIN_NOLOCK), we'll release the freeze
rwsem, which makes lockdep complains a lot.

Reported-by: Ma Jianpeng <majianpeng@gmail.com>
Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/transaction.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/btrfs/transaction.c b/fs/btrfs/transaction.c
index 57c16b46afbd..c6a872a8a468 100644
--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -1480,7 +1480,7 @@ static void do_async_commit(struct work_struct *work)
 	 * We've got freeze protection passed with the transaction.
 	 * Tell lockdep about it.
 	 */
-	if (ac->newtrans->type < TRANS_JOIN_NOLOCK)
+	if (ac->newtrans->type & __TRANS_FREEZABLE)
 		rwsem_acquire_read(
 		     &ac->root->fs_info->sb->s_writers.lock_map[SB_FREEZE_FS-1],
 		     0, 1, _THIS_IP_);
@@ -1521,7 +1521,7 @@ int btrfs_commit_transaction_async(struct btrfs_trans_handle *trans,
 	 * Tell lockdep we've released the freeze rwsem, since the
 	 * async commit thread will be the one to unlock it.
 	 */
-	if (trans->type < TRANS_JOIN_NOLOCK)
+	if (ac->newtrans->type & __TRANS_FREEZABLE)
 		rwsem_release(
 			&root->fs_info->sb->s_writers.lock_map[SB_FREEZE_FS-1],
 			1, _THIS_IP_);
-- 
cgit 


From b52abf1e3b65b4fbd42b39412e040b561faec6a6 Mon Sep 17 00:00:00 2001
From: Filipe David Borba Manana <fdmanana@gmail.com>
Date: Wed, 6 Nov 2013 15:12:40 +0000
Subject: Btrfs: don't wait for ordered data outside desired range

In btrfs_wait_ordered_range(), if we found an extent to the left
of the start of our desired wait range and the last byte of that
extent is 1 less than the desired range's start, we would would
wait for the IO completion of that extent unnecessarily.

Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/ordered-data.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index 25a8f3812f14..c37124bccf17 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -803,7 +803,7 @@ int btrfs_wait_ordered_range(struct inode *inode, u64 start, u64 len)
 			btrfs_put_ordered_extent(ordered);
 			break;
 		}
-		if (ordered->file_offset + ordered->len < start) {
+		if (ordered->file_offset + ordered->len <= start) {
 			btrfs_put_ordered_extent(ordered);
 			break;
 		}
-- 
cgit 


From 9650e05c071fc92e704d4359d59e3ac3ecae2875 Mon Sep 17 00:00:00 2001
From: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Date: Tue, 12 Nov 2013 19:32:04 +0800
Subject: Btrfs: remove dead codes from ctree.h

These two functions are only stated but undefined.

Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/ctree.h | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index f9aeb2759a64..54ab86127f7a 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3613,9 +3613,6 @@ int btrfs_csum_file_blocks(struct btrfs_trans_handle *trans,
 			   struct btrfs_ordered_sum *sums);
 int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
 		       struct bio *bio, u64 file_start, int contig);
-int btrfs_csum_truncate(struct btrfs_trans_handle *trans,
-			struct btrfs_root *root, struct btrfs_path *path,
-			u64 isize);
 int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
 			     struct list_head *list, int search_commit);
 /* inode.c */
@@ -3744,9 +3741,6 @@ void btrfs_cleanup_defrag_inodes(struct btrfs_fs_info *fs_info);
 int btrfs_sync_file(struct file *file, loff_t start, loff_t end, int datasync);
 void btrfs_drop_extent_cache(struct inode *inode, u64 start, u64 end,
 			     int skip_pinned);
-int btrfs_replace_extent_cache(struct inode *inode, struct extent_map *replace,
-			       u64 start, u64 end, int skip_pinned,
-			       int modified);
 extern const struct file_operations btrfs_file_operations;
 int __btrfs_drop_extents(struct btrfs_trans_handle *trans,
 			 struct btrfs_root *root, struct inode *inode,
-- 
cgit 


From 56d140f5f61d3547dcc194de9cd5193b957b8016 Mon Sep 17 00:00:00 2001
From: Stefan Behrens <sbehrens@giantdisaster.de>
Date: Wed, 13 Nov 2013 17:19:08 +0100
Subject: Btrfs: print bytenr instead of page pointer in check-int

The page pointer information was useless. The bytenr is what you
want when you search for submitted write bios.

Additionally, a new bit in the print mask is added that allows
to selectively enable the check-int submit_bio verbose mode. Before,
the global verbose mode had to be enabled leading to many million
useless lines in the kernel log.

And a comment is added that explains that LOG_BUF_SHIFT needs to
be set to a really high value.

Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/check-integrity.c | 25 +++++++++++++++++--------
 1 file changed, 17 insertions(+), 8 deletions(-)

diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index e0aab4456974..b50764bef141 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -77,6 +77,15 @@
  * the integrity of (super)-block write requests, do not
  * enable the config option BTRFS_FS_CHECK_INTEGRITY to
  * include and compile the integrity check tool.
+ *
+ * Expect millions of lines of information in the kernel log with an
+ * enabled check_int_print_mask. Therefore set LOG_BUF_SHIFT in the
+ * kernel config to at least 26 (which is 64MB). Usually the value is
+ * limited to 21 (which is 2MB) in init/Kconfig. The file needs to be
+ * changed like this before LOG_BUF_SHIFT can be set to a high value:
+ * config LOG_BUF_SHIFT
+ *       int "Kernel log buffer size (16 => 64KB, 17 => 128KB)"
+ *       range 12 30
  */
 
 #include <linux/sched.h>
@@ -124,6 +133,7 @@
 #define BTRFSIC_PRINT_MASK_INITIAL_DATABASE			0x00000400
 #define BTRFSIC_PRINT_MASK_NUM_COPIES				0x00000800
 #define BTRFSIC_PRINT_MASK_TREE_WITH_ALL_MIRRORS		0x00001000
+#define BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH_VERBOSE		0x00002000
 
 struct btrfsic_dev_state;
 struct btrfsic_state;
@@ -3015,6 +3025,7 @@ void btrfsic_submit_bio(int rw, struct bio *bio)
 	    (rw & WRITE) && NULL != bio->bi_io_vec) {
 		unsigned int i;
 		u64 dev_bytenr;
+		u64 cur_bytenr;
 		int bio_is_patched;
 		char **mapped_datav;
 
@@ -3033,6 +3044,7 @@ void btrfsic_submit_bio(int rw, struct bio *bio)
 				       GFP_NOFS);
 		if (!mapped_datav)
 			goto leave;
+		cur_bytenr = dev_bytenr;
 		for (i = 0; i < bio->bi_vcnt; i++) {
 			BUG_ON(bio->bi_io_vec[i].bv_len != PAGE_CACHE_SIZE);
 			mapped_datav[i] = kmap(bio->bi_io_vec[i].bv_page);
@@ -3044,16 +3056,13 @@ void btrfsic_submit_bio(int rw, struct bio *bio)
 				kfree(mapped_datav);
 				goto leave;
 			}
-			if ((BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH |
-			     BTRFSIC_PRINT_MASK_VERBOSE) ==
-			    (dev_state->state->print_mask &
-			     (BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH |
-			      BTRFSIC_PRINT_MASK_VERBOSE)))
+			if (dev_state->state->print_mask &
+			    BTRFSIC_PRINT_MASK_SUBMIT_BIO_BH_VERBOSE)
 				printk(KERN_INFO
-				       "#%u: page=%p, len=%u, offset=%u\n",
-				       i, bio->bi_io_vec[i].bv_page,
-				       bio->bi_io_vec[i].bv_len,
+				       "#%u: bytenr=%llu, len=%u, offset=%u\n",
+				       i, cur_bytenr, bio->bi_io_vec[i].bv_len,
 				       bio->bi_io_vec[i].bv_offset);
+			cur_bytenr += bio->bi_io_vec[i].bv_len;
 		}
 		btrfsic_process_written_block(dev_state, dev_bytenr,
 					      mapped_datav, bio->bi_vcnt,
-- 
cgit 


From 931aa87791af46640a46b11fa503a119e36943ec Mon Sep 17 00:00:00 2001
From: Miao Xie <miaox@cn.fujitsu.com>
Date: Thu, 14 Nov 2013 17:33:21 +0800
Subject: Btrfs: fix list delete warning when removing ordered root from the
 list

Commit b02441999efcc6152b87cd58e7970bb7843f76cf "Btrfs: don't wait for
the completion of all the ordered extents" introduced a bug that broke
the ordered root list:
 WARNING: CPU: 1 PID: 7119 at lib/list_debug.c:59 __list_del_entry+0x5a/0x98()

It is because we forgot to return the roots in the splice list to the
ordered list of the fs. Fix it.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/ordered-data.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/btrfs/ordered-data.c b/fs/btrfs/ordered-data.c
index c37124bccf17..69582d5b69d1 100644
--- a/fs/btrfs/ordered-data.c
+++ b/fs/btrfs/ordered-data.c
@@ -638,6 +638,7 @@ void btrfs_wait_ordered_roots(struct btrfs_fs_info *fs_info, int nr)
 			WARN_ON(nr < 0);
 		}
 	}
+	list_splice_tail(&splice, &fs_info->ordered_roots);
 	spin_unlock(&fs_info->ordered_root_lock);
 }
 
-- 
cgit 


From 52a157592140ac76d9f15637543aecc2100f95cb Mon Sep 17 00:00:00 2001
From: Anand Jain <Anand.Jain@oracle.com>
Date: Thu, 14 Nov 2013 19:52:44 +0800
Subject: btrfs: fix typo in the log message

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/dev-replace.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/dev-replace.c b/fs/btrfs/dev-replace.c
index 342f9fd411e3..2cfc3dfff64f 100644
--- a/fs/btrfs/dev-replace.c
+++ b/fs/btrfs/dev-replace.c
@@ -366,7 +366,7 @@ int btrfs_dev_replace_start(struct btrfs_root *root,
 	dev_replace->tgtdev = tgt_device;
 
 	printk_in_rcu(KERN_INFO
-		      "btrfs: dev_replace from %s (devid %llu) to %s) started\n",
+		      "btrfs: dev_replace from %s (devid %llu) to %s started\n",
 		      src_device->missing ? "<missing disk>" :
 		        rcu_str_deref(src_device->name),
 		      src_device->devid,
-- 
cgit 


From 4cd8587ce8fb79e49d1d6d1fc065f056188fb86a Mon Sep 17 00:00:00 2001
From: Steven Rostedt <rostedt@goodmis.org>
Date: Thu, 14 Nov 2013 22:57:29 -0500
Subject: btrfs: Use trace condition for get_extent tracepoint

Doing an if statement to test some condition to know if we should
trigger a tracepoint is pointless when tracing is disabled. This just
adds overhead and wastes a branch prediction. This is why the
TRACE_EVENT_CONDITION() was created. It places the check inside the jump
label so that the branch does not happen unless tracing is enabled.

That is, instead of doing:

	if (em)
		trace_btrfs_get_extent(root, em);

Which is basically this:

	if (em)
		if (static_key(trace_btrfs_get_extent)) {

Using a TRACE_EVENT_CONDITION() we can just do:

	trace_btrfs_get_extent(root, em);

And the condition trace event will do:

	if (static_key(trace_btrfs_get_extent)) {
		if (em) {
			...

The static key is a non conditional jump (or nop) that is faster than
having to check if em is NULL or not.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/inode.c             | 3 +--
 include/trace/events/btrfs.h | 4 +++-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index fd67b34e220d..f1a77449d032 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6187,8 +6187,7 @@ insert:
 	write_unlock(&em_tree->lock);
 out:
 
-	if (em)
-		trace_btrfs_get_extent(root, em);
+	trace_btrfs_get_extent(root, em);
 
 	if (path)
 		btrfs_free_path(path);
diff --git a/include/trace/events/btrfs.h b/include/trace/events/btrfs.h
index f18b3b76e01e..4832d75dcbae 100644
--- a/include/trace/events/btrfs.h
+++ b/include/trace/events/btrfs.h
@@ -162,12 +162,14 @@ DEFINE_EVENT(btrfs__inode, btrfs_inode_evict,
 		{ EXTENT_FLAG_LOGGING,	 	"LOGGING" 	},	\
 		{ EXTENT_FLAG_FILLING,	 	"FILLING" 	})
 
-TRACE_EVENT(btrfs_get_extent,
+TRACE_EVENT_CONDITION(btrfs_get_extent,
 
 	TP_PROTO(struct btrfs_root *root, struct extent_map *map),
 
 	TP_ARGS(root, map),
 
+	TP_CONDITION(map),
+
 	TP_STRUCT__entry(
 		__field(	u64,  root_objectid	)
 		__field(	u64,  start		)
-- 
cgit 


From 475bf36ffba2ad18631865a2429468dc6c7ea919 Mon Sep 17 00:00:00 2001
From: Akinobu Mita <akinobu.mita@gmail.com>
Date: Mon, 18 Nov 2013 22:13:18 +0900
Subject: btrfs: fix bio_size_ok() for max_sectors > 0xffff

The data type of max_sectors in queue settings is unsigned int.  But
this value is stored to the local variable whose type is unsigned short
in bio_size_ok().  This can cause unexpected result when max_sectors >
0xffff.

Cc: Chris Mason <chris.mason@fusionio.com>
Cc: linux-btrfs@vger.kernel.org
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/volumes.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 0db637097862..92303f42baaa 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -5394,7 +5394,7 @@ static int bio_size_ok(struct block_device *bdev, struct bio *bio,
 {
 	struct bio_vec *prev;
 	struct request_queue *q = bdev_get_queue(bdev);
-	unsigned short max_sectors = queue_max_sectors(q);
+	unsigned int max_sectors = queue_max_sectors(q);
 	struct bvec_merge_data bvm = {
 		.bi_bdev = bdev,
 		.bi_sector = sector,
-- 
cgit 


From 4204617d142c0887e45fda2562cb5c58097b918e Mon Sep 17 00:00:00 2001
From: David Sterba <dsterba@suse.cz>
Date: Wed, 20 Nov 2013 14:32:34 +0100
Subject: btrfs: update kconfig help text

Reflect the current status. Portions of the text taken from the
wiki pages.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 fs/btrfs/Kconfig | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/fs/btrfs/Kconfig b/fs/btrfs/Kconfig
index 398cbd517be2..f62389348662 100644
--- a/fs/btrfs/Kconfig
+++ b/fs/btrfs/Kconfig
@@ -9,12 +9,17 @@ config BTRFS_FS
 	select XOR_BLOCKS
 
 	help
-	  Btrfs is a new filesystem with extents, writable snapshotting,
-	  support for multiple devices and many more features.
+	  Btrfs is a general purpose copy-on-write filesystem with extents,
+	  writable snapshotting, support for multiple devices and many more
+	  features focused on fault tolerance, repair and easy administration.
 
-	  Btrfs is highly experimental, and THE DISK FORMAT IS NOT YET
-	  FINALIZED.  You should say N here unless you are interested in
-	  testing Btrfs with non-critical data.
+	  The filesystem disk format is no longer unstable, and it's not
+	  expected to change unless there are strong reasons to do so. If there
+	  is a format change, file systems with a unchanged format will
+	  continue to be mountable and usable by newer kernels.
+
+	  For more information, please see the web pages at
+	  http://btrfs.wiki.kernel.org.
 
 	  To compile this file system support as a module, choose M here. The
 	  module will be called btrfs.
-- 
cgit 


From f3d3342602f8bcbf37d7c46641cb9bca7618eb1c Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Thu, 21 Nov 2013 03:14:22 +0100
Subject: net: rework recvmsg handler msg_name and msg_namelen logic

This patch now always passes msg->msg_namelen as 0. recvmsg handlers must
set msg_namelen to the proper size <= sizeof(struct sockaddr_storage)
to return msg_name to the user.

This prevents numerous uninitialized memory leaks we had in the
recvmsg handlers and makes it harder for new code to accidentally leak
uninitialized memory.

Optimize for the case recvfrom is called with NULL as address. We don't
need to copy the address at all, so set it to NULL before invoking the
recvmsg handler. We can do so, because all the recvmsg handlers must
cope with the case a plain read() is called on them. read() also sets
msg_name to NULL.

Also document these changes in include/linux/net.h as suggested by David
Miller.

Changes since RFC:

Set msg->msg_name = NULL if user specified a NULL in msg_name but had a
non-null msg_namelen in verify_iovec/verify_compat_iovec. This doesn't
affect sendto as it would bail out earlier while trying to copy-in the
address. It also more naturally reflects the logic by the callers of
verify_iovec.

With this change in place I could remove "
if (!uaddr || msg_sys->msg_namelen == 0)
	msg->msg_name = NULL
".

This change does not alter the user visible error logic as we ignore
msg_namelen as long as msg_name is NULL.

Also remove two unnecessary curly brackets in ___sys_recvmsg and change
comments to netdev style.

Cc: David Miller <davem@davemloft.net>
Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 crypto/algif_hash.c            |  2 --
 crypto/algif_skcipher.c        |  1 -
 drivers/isdn/mISDN/socket.c    | 13 ++++---------
 drivers/net/ppp/pppoe.c        |  2 --
 include/linux/net.h            |  8 ++++++++
 net/appletalk/ddp.c            | 16 +++++++---------
 net/atm/common.c               |  2 --
 net/ax25/af_ax25.c             |  4 ++--
 net/bluetooth/af_bluetooth.c   |  9 ++-------
 net/bluetooth/hci_sock.c       |  2 --
 net/bluetooth/rfcomm/sock.c    |  1 -
 net/bluetooth/sco.c            |  1 -
 net/caif/caif_socket.c         |  4 ----
 net/compat.c                   |  3 ++-
 net/core/iovec.c               |  3 ++-
 net/ipx/af_ipx.c               |  3 +--
 net/irda/af_irda.c             |  4 ----
 net/iucv/af_iucv.c             |  2 --
 net/key/af_key.c               |  1 -
 net/l2tp/l2tp_ppp.c            |  2 --
 net/llc/af_llc.c               |  2 --
 net/netlink/af_netlink.c       |  2 --
 net/netrom/af_netrom.c         |  3 +--
 net/nfc/llcp_sock.c            |  2 --
 net/nfc/rawsock.c              |  2 --
 net/packet/af_packet.c         | 32 +++++++++++++++-----------------
 net/rds/recv.c                 |  2 --
 net/rose/af_rose.c             |  8 +++++---
 net/rxrpc/ar-recvmsg.c         |  9 ++++++---
 net/socket.c                   | 19 +++++++++++--------
 net/tipc/socket.c              |  6 ------
 net/unix/af_unix.c             |  5 -----
 net/vmw_vsock/af_vsock.c       |  2 --
 net/vmw_vsock/vmci_transport.c |  2 --
 net/x25/af_x25.c               |  3 +--
 35 files changed, 67 insertions(+), 115 deletions(-)

diff --git a/crypto/algif_hash.c b/crypto/algif_hash.c
index 0262210cad38..ef5356cd280a 100644
--- a/crypto/algif_hash.c
+++ b/crypto/algif_hash.c
@@ -161,8 +161,6 @@ static int hash_recvmsg(struct kiocb *unused, struct socket *sock,
 	else if (len < ds)
 		msg->msg_flags |= MSG_TRUNC;
 
-	msg->msg_namelen = 0;
-
 	lock_sock(sk);
 	if (ctx->more) {
 		ctx->more = 0;
diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c
index a1c4f0a55583..6a6dfc062d2a 100644
--- a/crypto/algif_skcipher.c
+++ b/crypto/algif_skcipher.c
@@ -432,7 +432,6 @@ static int skcipher_recvmsg(struct kiocb *unused, struct socket *sock,
 	long copied = 0;
 
 	lock_sock(sk);
-	msg->msg_namelen = 0;
 	for (iov = msg->msg_iov, iovlen = msg->msg_iovlen; iovlen > 0;
 	     iovlen--, iov++) {
 		unsigned long seglen = iov->iov_len;
diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c
index e47dcb9d1e91..5cefb479c707 100644
--- a/drivers/isdn/mISDN/socket.c
+++ b/drivers/isdn/mISDN/socket.c
@@ -117,7 +117,6 @@ mISDN_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 {
 	struct sk_buff		*skb;
 	struct sock		*sk = sock->sk;
-	struct sockaddr_mISDN	*maddr;
 
 	int		copied, err;
 
@@ -135,9 +134,9 @@ mISDN_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 	if (!skb)
 		return err;
 
-	if (msg->msg_namelen >= sizeof(struct sockaddr_mISDN)) {
-		msg->msg_namelen = sizeof(struct sockaddr_mISDN);
-		maddr = (struct sockaddr_mISDN *)msg->msg_name;
+	if (msg->msg_name) {
+		struct sockaddr_mISDN *maddr = msg->msg_name;
+
 		maddr->family = AF_ISDN;
 		maddr->dev = _pms(sk)->dev->id;
 		if ((sk->sk_protocol == ISDN_P_LAPD_TE) ||
@@ -150,11 +149,7 @@ mISDN_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 			maddr->sapi = _pms(sk)->ch.addr & 0xFF;
 			maddr->tei =  (_pms(sk)->ch.addr >> 8) & 0xFF;
 		}
-	} else {
-		if (msg->msg_namelen)
-			printk(KERN_WARNING "%s: too small namelen %d\n",
-			       __func__, msg->msg_namelen);
-		msg->msg_namelen = 0;
+		msg->msg_namelen = sizeof(*maddr);
 	}
 
 	copied = skb->len + MISDN_HEADER_LEN;
diff --git a/drivers/net/ppp/pppoe.c b/drivers/net/ppp/pppoe.c
index 5f66e30d9823..82ee6ed954cb 100644
--- a/drivers/net/ppp/pppoe.c
+++ b/drivers/net/ppp/pppoe.c
@@ -979,8 +979,6 @@ static int pppoe_recvmsg(struct kiocb *iocb, struct socket *sock,
 	if (error < 0)
 		goto end;
 
-	m->msg_namelen = 0;
-
 	if (skb) {
 		total_len = min_t(size_t, total_len, skb->len);
 		error = skb_copy_datagram_iovec(skb, 0, m->msg_iov, total_len);
diff --git a/include/linux/net.h b/include/linux/net.h
index b292a0435571..4bcee94cef93 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -164,6 +164,14 @@ struct proto_ops {
 #endif
 	int		(*sendmsg)   (struct kiocb *iocb, struct socket *sock,
 				      struct msghdr *m, size_t total_len);
+	/* Notes for implementing recvmsg:
+	 * ===============================
+	 * msg->msg_namelen should get updated by the recvmsg handlers
+	 * iff msg_name != NULL. It is by default 0 to prevent
+	 * returning uninitialized memory to user space.  The recvfrom
+	 * handlers can assume that msg.msg_name is either NULL or has
+	 * a minimum size of sizeof(struct sockaddr_storage).
+	 */
 	int		(*recvmsg)   (struct kiocb *iocb, struct socket *sock,
 				      struct msghdr *m, size_t total_len,
 				      int flags);
diff --git a/net/appletalk/ddp.c b/net/appletalk/ddp.c
index 7fee50d637f9..7d424ac6e760 100644
--- a/net/appletalk/ddp.c
+++ b/net/appletalk/ddp.c
@@ -1735,7 +1735,6 @@ static int atalk_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr
 			 size_t size, int flags)
 {
 	struct sock *sk = sock->sk;
-	struct sockaddr_at *sat = (struct sockaddr_at *)msg->msg_name;
 	struct ddpehdr *ddp;
 	int copied = 0;
 	int offset = 0;
@@ -1764,14 +1763,13 @@ static int atalk_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr
 	}
 	err = skb_copy_datagram_iovec(skb, offset, msg->msg_iov, copied);
 
-	if (!err) {
-		if (sat) {
-			sat->sat_family      = AF_APPLETALK;
-			sat->sat_port        = ddp->deh_sport;
-			sat->sat_addr.s_node = ddp->deh_snode;
-			sat->sat_addr.s_net  = ddp->deh_snet;
-		}
-		msg->msg_namelen = sizeof(*sat);
+	if (!err && msg->msg_name) {
+		struct sockaddr_at *sat = msg->msg_name;
+		sat->sat_family      = AF_APPLETALK;
+		sat->sat_port        = ddp->deh_sport;
+		sat->sat_addr.s_node = ddp->deh_snode;
+		sat->sat_addr.s_net  = ddp->deh_snet;
+		msg->msg_namelen     = sizeof(*sat);
 	}
 
 	skb_free_datagram(sk, skb);	/* Free the datagram. */
diff --git a/net/atm/common.c b/net/atm/common.c
index 737bef59ce89..7b491006eaf4 100644
--- a/net/atm/common.c
+++ b/net/atm/common.c
@@ -531,8 +531,6 @@ int vcc_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
 	struct sk_buff *skb;
 	int copied, error = -EINVAL;
 
-	msg->msg_namelen = 0;
-
 	if (sock->state != SS_CONNECTED)
 		return -ENOTCONN;
 
diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c
index a00123ebb0ae..7bb1605bdfd9 100644
--- a/net/ax25/af_ax25.c
+++ b/net/ax25/af_ax25.c
@@ -1636,11 +1636,11 @@ static int ax25_recvmsg(struct kiocb *iocb, struct socket *sock,
 
 	skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
 
-	if (msg->msg_namelen != 0) {
-		struct sockaddr_ax25 *sax = (struct sockaddr_ax25 *)msg->msg_name;
+	if (msg->msg_name) {
 		ax25_digi digi;
 		ax25_address src;
 		const unsigned char *mac = skb_mac_header(skb);
+		struct sockaddr_ax25 *sax = msg->msg_name;
 
 		memset(sax, 0, sizeof(struct full_sockaddr_ax25));
 		ax25_addr_parse(mac + 1, skb->data - mac - 1, &src, NULL,
diff --git a/net/bluetooth/af_bluetooth.c b/net/bluetooth/af_bluetooth.c
index f6a1671ea2ff..56ca494621c6 100644
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -224,10 +224,9 @@ int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 
 	skb = skb_recv_datagram(sk, flags, noblock, &err);
 	if (!skb) {
-		if (sk->sk_shutdown & RCV_SHUTDOWN) {
-			msg->msg_namelen = 0;
+		if (sk->sk_shutdown & RCV_SHUTDOWN)
 			return 0;
-		}
+
 		return err;
 	}
 
@@ -245,8 +244,6 @@ int bt_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 		if (bt_sk(sk)->skb_msg_name)
 			bt_sk(sk)->skb_msg_name(skb, msg->msg_name,
 						&msg->msg_namelen);
-		else
-			msg->msg_namelen = 0;
 	}
 
 	skb_free_datagram(sk, skb);
@@ -295,8 +292,6 @@ int bt_sock_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
 	if (flags & MSG_OOB)
 		return -EOPNOTSUPP;
 
-	msg->msg_namelen = 0;
-
 	BT_DBG("sk %p size %zu", sk, size);
 
 	lock_sock(sk);
diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c
index 71f0be173080..6a6c8bb4fd72 100644
--- a/net/bluetooth/hci_sock.c
+++ b/net/bluetooth/hci_sock.c
@@ -856,8 +856,6 @@ static int hci_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 	if (!skb)
 		return err;
 
-	msg->msg_namelen = 0;
-
 	copied = skb->len;
 	if (len < copied) {
 		msg->msg_flags |= MSG_TRUNC;
diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c
index c4d3d423f89b..c80766f892c3 100644
--- a/net/bluetooth/rfcomm/sock.c
+++ b/net/bluetooth/rfcomm/sock.c
@@ -615,7 +615,6 @@ static int rfcomm_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 
 	if (test_and_clear_bit(RFCOMM_DEFER_SETUP, &d->flags)) {
 		rfcomm_dlc_accept(d);
-		msg->msg_namelen = 0;
 		return 0;
 	}
 
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c
index 12a0e51e21e1..24fa3964b3c8 100644
--- a/net/bluetooth/sco.c
+++ b/net/bluetooth/sco.c
@@ -711,7 +711,6 @@ static int sco_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 	    test_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) {
 		sco_conn_defer_accept(pi->conn->hcon, pi->setting);
 		sk->sk_state = BT_CONFIG;
-		msg->msg_namelen = 0;
 
 		release_sock(sk);
 		return 0;
diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c
index 05a41c7ec304..d6be3edb7a43 100644
--- a/net/caif/caif_socket.c
+++ b/net/caif/caif_socket.c
@@ -286,8 +286,6 @@ static int caif_seqpkt_recvmsg(struct kiocb *iocb, struct socket *sock,
 	if (m->msg_flags&MSG_OOB)
 		goto read_error;
 
-	m->msg_namelen = 0;
-
 	skb = skb_recv_datagram(sk, flags, 0 , &ret);
 	if (!skb)
 		goto read_error;
@@ -361,8 +359,6 @@ static int caif_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
 	if (flags&MSG_OOB)
 		goto out;
 
-	msg->msg_namelen = 0;
-
 	/*
 	 * Lock the socket to prevent queue disordering
 	 * while sleeps in memcpy_tomsg
diff --git a/net/compat.c b/net/compat.c
index 89032580bd1d..618c6a8a911b 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -93,7 +93,8 @@ int verify_compat_iovec(struct msghdr *kern_msg, struct iovec *kern_iov,
 			if (err < 0)
 				return err;
 		}
-		kern_msg->msg_name = kern_address;
+		if (kern_msg->msg_name)
+			kern_msg->msg_name = kern_address;
 	} else
 		kern_msg->msg_name = NULL;
 
diff --git a/net/core/iovec.c b/net/core/iovec.c
index 4cdb7c48dad6..b61869429f4c 100644
--- a/net/core/iovec.c
+++ b/net/core/iovec.c
@@ -48,7 +48,8 @@ int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *a
 			if (err < 0)
 				return err;
 		}
-		m->msg_name = address;
+		if (m->msg_name)
+			m->msg_name = address;
 	} else {
 		m->msg_name = NULL;
 	}
diff --git a/net/ipx/af_ipx.c b/net/ipx/af_ipx.c
index 7a1e0fc1bd4d..e096025b477f 100644
--- a/net/ipx/af_ipx.c
+++ b/net/ipx/af_ipx.c
@@ -1823,8 +1823,6 @@ static int ipx_recvmsg(struct kiocb *iocb, struct socket *sock,
 	if (skb->tstamp.tv64)
 		sk->sk_stamp = skb->tstamp;
 
-	msg->msg_namelen = sizeof(*sipx);
-
 	if (sipx) {
 		sipx->sipx_family	= AF_IPX;
 		sipx->sipx_port		= ipx->ipx_source.sock;
@@ -1832,6 +1830,7 @@ static int ipx_recvmsg(struct kiocb *iocb, struct socket *sock,
 		sipx->sipx_network	= IPX_SKB_CB(skb)->ipx_source_net;
 		sipx->sipx_type 	= ipx->ipx_type;
 		sipx->sipx_zero		= 0;
+		msg->msg_namelen	= sizeof(*sipx);
 	}
 	rc = copied;
 
diff --git a/net/irda/af_irda.c b/net/irda/af_irda.c
index 0f676908d15b..de7db23049f1 100644
--- a/net/irda/af_irda.c
+++ b/net/irda/af_irda.c
@@ -1385,8 +1385,6 @@ static int irda_recvmsg_dgram(struct kiocb *iocb, struct socket *sock,
 
 	IRDA_DEBUG(4, "%s()\n", __func__);
 
-	msg->msg_namelen = 0;
-
 	skb = skb_recv_datagram(sk, flags & ~MSG_DONTWAIT,
 				flags & MSG_DONTWAIT, &err);
 	if (!skb)
@@ -1451,8 +1449,6 @@ static int irda_recvmsg_stream(struct kiocb *iocb, struct socket *sock,
 	target = sock_rcvlowat(sk, flags & MSG_WAITALL, size);
 	timeo = sock_rcvtimeo(sk, noblock);
 
-	msg->msg_namelen = 0;
-
 	do {
 		int chunk;
 		struct sk_buff *skb = skb_dequeue(&sk->sk_receive_queue);
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c
index 168aff5e60de..c4b7218058b6 100644
--- a/net/iucv/af_iucv.c
+++ b/net/iucv/af_iucv.c
@@ -1324,8 +1324,6 @@ static int iucv_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 	int err = 0;
 	u32 offset;
 
-	msg->msg_namelen = 0;
-
 	if ((sk->sk_state == IUCV_DISCONN) &&
 	    skb_queue_empty(&iucv->backlog_skb_q) &&
 	    skb_queue_empty(&sk->sk_receive_queue) &&
diff --git a/net/key/af_key.c b/net/key/af_key.c
index 911ef03bf8fb..545f047868ad 100644
--- a/net/key/af_key.c
+++ b/net/key/af_key.c
@@ -3616,7 +3616,6 @@ static int pfkey_recvmsg(struct kiocb *kiocb,
 	if (flags & ~(MSG_PEEK|MSG_DONTWAIT|MSG_TRUNC|MSG_CMSG_COMPAT))
 		goto out;
 
-	msg->msg_namelen = 0;
 	skb = skb_recv_datagram(sk, flags, flags & MSG_DONTWAIT, &err);
 	if (skb == NULL)
 		goto out;
diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c
index ffda81ef1a70..be5fadf34739 100644
--- a/net/l2tp/l2tp_ppp.c
+++ b/net/l2tp/l2tp_ppp.c
@@ -197,8 +197,6 @@ static int pppol2tp_recvmsg(struct kiocb *iocb, struct socket *sock,
 	if (sk->sk_state & PPPOX_BOUND)
 		goto end;
 
-	msg->msg_namelen = 0;
-
 	err = 0;
 	skb = skb_recv_datagram(sk, flags & ~MSG_DONTWAIT,
 				flags & MSG_DONTWAIT, &err);
diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c
index 6cba486353e8..7b01b9f5846c 100644
--- a/net/llc/af_llc.c
+++ b/net/llc/af_llc.c
@@ -720,8 +720,6 @@ static int llc_ui_recvmsg(struct kiocb *iocb, struct socket *sock,
 	int target;	/* Read at least this many bytes */
 	long timeo;
 
-	msg->msg_namelen = 0;
-
 	lock_sock(sk);
 	copied = -ENOTCONN;
 	if (unlikely(sk->sk_type == SOCK_STREAM && sk->sk_state == TCP_LISTEN))
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c
index f0176e1a5a81..bca50b95c182 100644
--- a/net/netlink/af_netlink.c
+++ b/net/netlink/af_netlink.c
@@ -2335,8 +2335,6 @@ static int netlink_recvmsg(struct kiocb *kiocb, struct socket *sock,
 	}
 #endif
 
-	msg->msg_namelen = 0;
-
 	copied = data_skb->len;
 	if (len < copied) {
 		msg->msg_flags |= MSG_TRUNC;
diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c
index 698814bfa7ad..53c19a35fc6d 100644
--- a/net/netrom/af_netrom.c
+++ b/net/netrom/af_netrom.c
@@ -1179,10 +1179,9 @@ static int nr_recvmsg(struct kiocb *iocb, struct socket *sock,
 		sax->sax25_family = AF_NETROM;
 		skb_copy_from_linear_data_offset(skb, 7, sax->sax25_call.ax25_call,
 			      AX25_ADDR_LEN);
+		msg->msg_namelen = sizeof(*sax);
 	}
 
-	msg->msg_namelen = sizeof(*sax);
-
 	skb_free_datagram(sk, skb);
 
 	release_sock(sk);
diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c
index d308402b67d8..824c6056bf82 100644
--- a/net/nfc/llcp_sock.c
+++ b/net/nfc/llcp_sock.c
@@ -807,8 +807,6 @@ static int llcp_sock_recvmsg(struct kiocb *iocb, struct socket *sock,
 
 	pr_debug("%p %zu\n", sk, len);
 
-	msg->msg_namelen = 0;
-
 	lock_sock(sk);
 
 	if (sk->sk_state == LLCP_CLOSED &&
diff --git a/net/nfc/rawsock.c b/net/nfc/rawsock.c
index cd958b381f96..66bcd2eb5773 100644
--- a/net/nfc/rawsock.c
+++ b/net/nfc/rawsock.c
@@ -244,8 +244,6 @@ static int rawsock_recvmsg(struct kiocb *iocb, struct socket *sock,
 	if (!skb)
 		return rc;
 
-	msg->msg_namelen = 0;
-
 	copied = skb->len;
 	if (len < copied) {
 		msg->msg_flags |= MSG_TRUNC;
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 2e8286b47c28..61bd50adead1 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -2660,7 +2660,6 @@ static int packet_recvmsg(struct kiocb *iocb, struct socket *sock,
 	struct sock *sk = sock->sk;
 	struct sk_buff *skb;
 	int copied, err;
-	struct sockaddr_ll *sll;
 	int vnet_hdr_len = 0;
 
 	err = -EINVAL;
@@ -2744,22 +2743,10 @@ static int packet_recvmsg(struct kiocb *iocb, struct socket *sock,
 			goto out_free;
 	}
 
-	/*
-	 *	If the address length field is there to be filled in, we fill
-	 *	it in now.
-	 */
-
-	sll = &PACKET_SKB_CB(skb)->sa.ll;
-	if (sock->type == SOCK_PACKET)
-		msg->msg_namelen = sizeof(struct sockaddr_pkt);
-	else
-		msg->msg_namelen = sll->sll_halen + offsetof(struct sockaddr_ll, sll_addr);
-
-	/*
-	 *	You lose any data beyond the buffer you gave. If it worries a
-	 *	user program they can ask the device for its MTU anyway.
+	/* You lose any data beyond the buffer you gave. If it worries
+	 * a user program they can ask the device for its MTU
+	 * anyway.
 	 */
-
 	copied = skb->len;
 	if (copied > len) {
 		copied = len;
@@ -2772,9 +2759,20 @@ static int packet_recvmsg(struct kiocb *iocb, struct socket *sock,
 
 	sock_recv_ts_and_drops(msg, sk, skb);
 
-	if (msg->msg_name)
+	if (msg->msg_name) {
+		/* If the address length field is there to be filled
+		 * in, we fill it in now.
+		 */
+		if (sock->type == SOCK_PACKET) {
+			msg->msg_namelen = sizeof(struct sockaddr_pkt);
+		} else {
+			struct sockaddr_ll *sll = &PACKET_SKB_CB(skb)->sa.ll;
+			msg->msg_namelen = sll->sll_halen +
+				offsetof(struct sockaddr_ll, sll_addr);
+		}
 		memcpy(msg->msg_name, &PACKET_SKB_CB(skb)->sa,
 		       msg->msg_namelen);
+	}
 
 	if (pkt_sk(sk)->auxdata) {
 		struct tpacket_auxdata aux;
diff --git a/net/rds/recv.c b/net/rds/recv.c
index 9f0f17cf6bf9..de339b24ca14 100644
--- a/net/rds/recv.c
+++ b/net/rds/recv.c
@@ -410,8 +410,6 @@ int rds_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
 
 	rdsdebug("size %zu flags 0x%x timeo %ld\n", size, msg_flags, timeo);
 
-	msg->msg_namelen = 0;
-
 	if (msg_flags & MSG_OOB)
 		goto out;
 
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index e98fcfbe6007..33af77246bfe 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -1216,7 +1216,6 @@ static int rose_recvmsg(struct kiocb *iocb, struct socket *sock,
 {
 	struct sock *sk = sock->sk;
 	struct rose_sock *rose = rose_sk(sk);
-	struct sockaddr_rose *srose = (struct sockaddr_rose *)msg->msg_name;
 	size_t copied;
 	unsigned char *asmptr;
 	struct sk_buff *skb;
@@ -1252,8 +1251,11 @@ static int rose_recvmsg(struct kiocb *iocb, struct socket *sock,
 
 	skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied);
 
-	if (srose != NULL) {
-		memset(srose, 0, msg->msg_namelen);
+	if (msg->msg_name) {
+		struct sockaddr_rose *srose;
+
+		memset(msg->msg_name, 0, sizeof(struct full_sockaddr_rose));
+		srose = msg->msg_name;
 		srose->srose_family = AF_ROSE;
 		srose->srose_addr   = rose->dest_addr;
 		srose->srose_call   = rose->dest_call;
diff --git a/net/rxrpc/ar-recvmsg.c b/net/rxrpc/ar-recvmsg.c
index 4b48687c3890..898492a8d61b 100644
--- a/net/rxrpc/ar-recvmsg.c
+++ b/net/rxrpc/ar-recvmsg.c
@@ -143,10 +143,13 @@ int rxrpc_recvmsg(struct kiocb *iocb, struct socket *sock,
 
 		/* copy the peer address and timestamp */
 		if (!continue_call) {
-			if (msg->msg_name && msg->msg_namelen > 0)
+			if (msg->msg_name) {
+				size_t len =
+					sizeof(call->conn->trans->peer->srx);
 				memcpy(msg->msg_name,
-				       &call->conn->trans->peer->srx,
-				       sizeof(call->conn->trans->peer->srx));
+				       &call->conn->trans->peer->srx, len);
+				msg->msg_namelen = len;
+			}
 			sock_recv_ts_and_drops(msg, &rx->sk, skb);
 		}
 
diff --git a/net/socket.c b/net/socket.c
index c226aceee65b..fc285564e49e 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1840,8 +1840,10 @@ SYSCALL_DEFINE6(recvfrom, int, fd, void __user *, ubuf, size_t, size,
 	msg.msg_iov = &iov;
 	iov.iov_len = size;
 	iov.iov_base = ubuf;
-	msg.msg_name = (struct sockaddr *)&address;
-	msg.msg_namelen = sizeof(address);
+	/* Save some cycles and don't copy the address if not needed */
+	msg.msg_name = addr ? (struct sockaddr *)&address : NULL;
+	/* We assume all kernel code knows the size of sockaddr_storage */
+	msg.msg_namelen = 0;
 	if (sock->file->f_flags & O_NONBLOCK)
 		flags |= MSG_DONTWAIT;
 	err = sock_recvmsg(sock, &msg, size, flags);
@@ -2221,16 +2223,14 @@ static int ___sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
 			goto out;
 	}
 
-	/*
-	 *      Save the user-mode address (verify_iovec will change the
-	 *      kernel msghdr to use the kernel address space)
+	/* Save the user-mode address (verify_iovec will change the
+	 * kernel msghdr to use the kernel address space)
 	 */
-
 	uaddr = (__force void __user *)msg_sys->msg_name;
 	uaddr_len = COMPAT_NAMELEN(msg);
-	if (MSG_CMSG_COMPAT & flags) {
+	if (MSG_CMSG_COMPAT & flags)
 		err = verify_compat_iovec(msg_sys, iov, &addr, VERIFY_WRITE);
-	} else
+	else
 		err = verify_iovec(msg_sys, iov, &addr, VERIFY_WRITE);
 	if (err < 0)
 		goto out_freeiov;
@@ -2239,6 +2239,9 @@ static int ___sys_recvmsg(struct socket *sock, struct msghdr __user *msg,
 	cmsg_ptr = (unsigned long)msg_sys->msg_control;
 	msg_sys->msg_flags = flags & (MSG_CMSG_CLOEXEC|MSG_CMSG_COMPAT);
 
+	/* We assume all kernel code knows the size of sockaddr_storage */
+	msg_sys->msg_namelen = 0;
+
 	if (sock->file->f_flags & O_NONBLOCK)
 		flags |= MSG_DONTWAIT;
 	err = (nosec ? sock_recvmsg_nosec : sock_recvmsg)(sock, msg_sys,
diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 3906527259d1..3b61851bb927 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -980,9 +980,6 @@ static int recv_msg(struct kiocb *iocb, struct socket *sock,
 		goto exit;
 	}
 
-	/* will be updated in set_orig_addr() if needed */
-	m->msg_namelen = 0;
-
 	timeout = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
 restart:
 
@@ -1091,9 +1088,6 @@ static int recv_stream(struct kiocb *iocb, struct socket *sock,
 		goto exit;
 	}
 
-	/* will be updated in set_orig_addr() if needed */
-	m->msg_namelen = 0;
-
 	target = sock_rcvlowat(sk, flags & MSG_WAITALL, buf_len);
 	timeout = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
 
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index c1f403bed683..01625ccc3ae6 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1754,7 +1754,6 @@ static void unix_copy_addr(struct msghdr *msg, struct sock *sk)
 {
 	struct unix_sock *u = unix_sk(sk);
 
-	msg->msg_namelen = 0;
 	if (u->addr) {
 		msg->msg_namelen = u->addr->len;
 		memcpy(msg->msg_name, u->addr->name, u->addr->len);
@@ -1778,8 +1777,6 @@ static int unix_dgram_recvmsg(struct kiocb *iocb, struct socket *sock,
 	if (flags&MSG_OOB)
 		goto out;
 
-	msg->msg_namelen = 0;
-
 	err = mutex_lock_interruptible(&u->readlock);
 	if (err) {
 		err = sock_intr_errno(sock_rcvtimeo(sk, noblock));
@@ -1924,8 +1921,6 @@ static int unix_stream_recvmsg(struct kiocb *iocb, struct socket *sock,
 	target = sock_rcvlowat(sk, flags&MSG_WAITALL, size);
 	timeo = sock_rcvtimeo(sk, flags&MSG_DONTWAIT);
 
-	msg->msg_namelen = 0;
-
 	/* Lock the socket to prevent queue disordering
 	 * while sleeps in memcpy_tomsg
 	 */
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index 545c08b8a1d4..5adfd94c5b85 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -1662,8 +1662,6 @@ vsock_stream_recvmsg(struct kiocb *kiocb,
 	vsk = vsock_sk(sk);
 	err = 0;
 
-	msg->msg_namelen = 0;
-
 	lock_sock(sk);
 
 	if (sk->sk_state != SS_CONNECTED) {
diff --git a/net/vmw_vsock/vmci_transport.c b/net/vmw_vsock/vmci_transport.c
index 9d6986634e0b..687360da62d9 100644
--- a/net/vmw_vsock/vmci_transport.c
+++ b/net/vmw_vsock/vmci_transport.c
@@ -1746,8 +1746,6 @@ static int vmci_transport_dgram_dequeue(struct kiocb *kiocb,
 	if (flags & MSG_OOB || flags & MSG_ERRQUEUE)
 		return -EOPNOTSUPP;
 
-	msg->msg_namelen = 0;
-
 	/* Retrieve the head sk_buff from the socket's receive queue. */
 	err = 0;
 	skb = skb_recv_datagram(&vsk->sk, flags, noblock, &err);
diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 45a3ab5612c1..7622789d3750 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c
@@ -1340,10 +1340,9 @@ static int x25_recvmsg(struct kiocb *iocb, struct socket *sock,
 	if (sx25) {
 		sx25->sx25_family = AF_X25;
 		sx25->sx25_addr   = x25->dest_addr;
+		msg->msg_namelen = sizeof(*sx25);
 	}
 
-	msg->msg_namelen = sizeof(struct sockaddr_x25);
-
 	x25_check_rbuf(sk);
 	rc = copied;
 out_free_dgram:
-- 
cgit 


From 68c6beb373955da0886d8f4f5995b3922ceda4be Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Thu, 21 Nov 2013 03:14:34 +0100
Subject: net: add BUG_ON if kernel advertises msg_namelen > sizeof(struct
 sockaddr_storage)

In that case it is probable that kernel code overwrote part of the
stack. So we should bail out loudly here.

The BUG_ON may be removed in future if we are sure all protocols are
conformant.

Suggested-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/socket.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/socket.c b/net/socket.c
index fc285564e49e..0b18693f2be6 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -221,12 +221,13 @@ static int move_addr_to_user(struct sockaddr_storage *kaddr, int klen,
 	int err;
 	int len;
 
+	BUG_ON(klen > sizeof(struct sockaddr_storage));
 	err = get_user(len, ulen);
 	if (err)
 		return err;
 	if (len > klen)
 		len = klen;
-	if (len < 0 || len > sizeof(struct sockaddr_storage))
+	if (len < 0)
 		return -EINVAL;
 	if (len) {
 		if (audit_sockaddr(klen, kaddr))
-- 
cgit 


From 0508019cca6c425a9db79b2b3aa37afba0a5542b Mon Sep 17 00:00:00 2001
From: Andy Fleming <afleming@gmail.com>
Date: Wed, 20 Nov 2013 16:38:16 -0600
Subject: net/phy: Add VSC8234 support

Vitesse VSC8234 is quad port 10/100/1000BASE-T PHY
with SGMII and SERDES MAC interfaces.

Signed-off-by: Andy Fleming <afleming@gmail.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Shruti Kanetkar <Shruti@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/phy/vitesse.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/drivers/net/phy/vitesse.c b/drivers/net/phy/vitesse.c
index 69b482bce7d2..59e3b58a3723 100644
--- a/drivers/net/phy/vitesse.c
+++ b/drivers/net/phy/vitesse.c
@@ -54,6 +54,7 @@
 #define MII_VSC8221_AUXCONSTAT_INIT	0x0004 /* need to set this bit? */
 #define MII_VSC8221_AUXCONSTAT_RESERVED	0x0004
 
+#define PHY_ID_VSC8234			0x000fc620
 #define PHY_ID_VSC8244			0x000fc6c0
 #define PHY_ID_VSC8221			0x000fc550
 #define PHY_ID_VSC8211			0x000fc4b0
@@ -118,7 +119,8 @@ static int vsc82xx_config_intr(struct phy_device *phydev)
 
 	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
 		err = phy_write(phydev, MII_VSC8244_IMASK,
-			phydev->drv->phy_id == PHY_ID_VSC8244 ?
+			(phydev->drv->phy_id == PHY_ID_VSC8234 ||
+			 phydev->drv->phy_id == PHY_ID_VSC8244) ?
 				MII_VSC8244_IMASK_MASK :
 				MII_VSC8221_IMASK_MASK);
 	else {
@@ -149,9 +151,21 @@ static int vsc8221_config_init(struct phy_device *phydev)
 	 */
 }
 
-/* Vitesse 824x */
+/* Vitesse 82xx */
 static struct phy_driver vsc82xx_driver[] = {
 {
+	.phy_id         = PHY_ID_VSC8234,
+	.name           = "Vitesse VSC8234",
+	.phy_id_mask    = 0x000ffff0,
+	.features       = PHY_GBIT_FEATURES,
+	.flags          = PHY_HAS_INTERRUPT,
+	.config_init    = &vsc824x_config_init,
+	.config_aneg    = &genphy_config_aneg,
+	.read_status    = &genphy_read_status,
+	.ack_interrupt  = &vsc824x_ack_interrupt,
+	.config_intr    = &vsc82xx_config_intr,
+	.driver         = { .owner = THIS_MODULE,},
+}, {
 	.phy_id		= PHY_ID_VSC8244,
 	.name		= "Vitesse VSC8244",
 	.phy_id_mask	= 0x000fffc0,
@@ -207,6 +221,7 @@ module_init(vsc82xx_init);
 module_exit(vsc82xx_exit);
 
 static struct mdio_device_id __maybe_unused vitesse_tbl[] = {
+	{ PHY_ID_VSC8234, 0x000ffff0 },
 	{ PHY_ID_VSC8244, 0x000fffc0 },
 	{ PHY_ID_VSC8221, 0x000ffff0 },
 	{ PHY_ID_VSC8211, 0x000ffff0 },
-- 
cgit 


From c2efef747d90c412d65752b3698bf8a9e98ddb8a Mon Sep 17 00:00:00 2001
From: shaohui xie <Shaohui.Xie@freescale.com>
Date: Wed, 20 Nov 2013 16:38:17 -0600
Subject: net/phy: Add VSC8574 support

The VSC8574 is a quad-port Gigabit Ethernet transceiver with four SerDes
interfaces for quad-port dual media capability.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: Andy Fleming <afleming@gmail.com>
Signed-off-by: Shruti Kanetkar <Shruti@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/phy/vitesse.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/vitesse.c b/drivers/net/phy/vitesse.c
index 59e3b58a3723..31b31488b416 100644
--- a/drivers/net/phy/vitesse.c
+++ b/drivers/net/phy/vitesse.c
@@ -56,6 +56,7 @@
 
 #define PHY_ID_VSC8234			0x000fc620
 #define PHY_ID_VSC8244			0x000fc6c0
+#define PHY_ID_VSC8574			0x000704a0
 #define PHY_ID_VSC8221			0x000fc550
 #define PHY_ID_VSC8211			0x000fc4b0
 
@@ -120,7 +121,8 @@ static int vsc82xx_config_intr(struct phy_device *phydev)
 	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
 		err = phy_write(phydev, MII_VSC8244_IMASK,
 			(phydev->drv->phy_id == PHY_ID_VSC8234 ||
-			 phydev->drv->phy_id == PHY_ID_VSC8244) ?
+			 phydev->drv->phy_id == PHY_ID_VSC8244 ||
+			 phydev->drv->phy_id == PHY_ID_VSC8574) ?
 				MII_VSC8244_IMASK_MASK :
 				MII_VSC8221_IMASK_MASK);
 	else {
@@ -177,6 +179,18 @@ static struct phy_driver vsc82xx_driver[] = {
 	.ack_interrupt	= &vsc824x_ack_interrupt,
 	.config_intr	= &vsc82xx_config_intr,
 	.driver		= { .owner = THIS_MODULE,},
+}, {
+	.phy_id         = PHY_ID_VSC8574,
+	.name           = "Vitesse VSC8574",
+	.phy_id_mask    = 0x000ffff0,
+	.features       = PHY_GBIT_FEATURES,
+	.flags          = PHY_HAS_INTERRUPT,
+	.config_init    = &vsc824x_config_init,
+	.config_aneg    = &genphy_config_aneg,
+	.read_status    = &genphy_read_status,
+	.ack_interrupt  = &vsc824x_ack_interrupt,
+	.config_intr    = &vsc82xx_config_intr,
+	.driver         = { .owner = THIS_MODULE,},
 }, {
 	/* Vitesse 8221 */
 	.phy_id		= PHY_ID_VSC8221,
@@ -223,6 +237,7 @@ module_exit(vsc82xx_exit);
 static struct mdio_device_id __maybe_unused vitesse_tbl[] = {
 	{ PHY_ID_VSC8234, 0x000ffff0 },
 	{ PHY_ID_VSC8244, 0x000fffc0 },
+	{ PHY_ID_VSC8574, 0x000ffff0 },
 	{ PHY_ID_VSC8221, 0x000ffff0 },
 	{ PHY_ID_VSC8211, 0x000ffff0 },
 	{ }
-- 
cgit 


From 06ae4f848fe69ebd3c3a00d2ecbb8af22fb75418 Mon Sep 17 00:00:00 2001
From: Sandeep Singh <sandeep@freescale.com>
Date: Wed, 20 Nov 2013 16:38:18 -0600
Subject: net/phy: Add VSC8662 support

Vitesse VSC8662 is Dual Port 10/100/1000Base-T Phy
Its register set and features are similar to other Vitesse Phys.

Signed-off-by: Sandeep Singh <Sandeep@freescale.com>
Signed-off-by: Andy Fleming <afleming@gmail.com>
Signed-off-by: Shruti Kanetkar <Shruti@Freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/phy/vitesse.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/net/phy/vitesse.c b/drivers/net/phy/vitesse.c
index 31b31488b416..40406bc2f8af 100644
--- a/drivers/net/phy/vitesse.c
+++ b/drivers/net/phy/vitesse.c
@@ -57,6 +57,7 @@
 #define PHY_ID_VSC8234			0x000fc620
 #define PHY_ID_VSC8244			0x000fc6c0
 #define PHY_ID_VSC8574			0x000704a0
+#define PHY_ID_VSC8662			0x00070660
 #define PHY_ID_VSC8221			0x000fc550
 #define PHY_ID_VSC8211			0x000fc4b0
 
@@ -191,6 +192,18 @@ static struct phy_driver vsc82xx_driver[] = {
 	.ack_interrupt  = &vsc824x_ack_interrupt,
 	.config_intr    = &vsc82xx_config_intr,
 	.driver         = { .owner = THIS_MODULE,},
+}, {
+	.phy_id         = PHY_ID_VSC8662,
+	.name           = "Vitesse VSC8662",
+	.phy_id_mask    = 0x000ffff0,
+	.features       = PHY_GBIT_FEATURES,
+	.flags          = PHY_HAS_INTERRUPT,
+	.config_init    = &vsc824x_config_init,
+	.config_aneg    = &genphy_config_aneg,
+	.read_status    = &genphy_read_status,
+	.ack_interrupt  = &vsc824x_ack_interrupt,
+	.config_intr    = &vsc82xx_config_intr,
+	.driver         = { .owner = THIS_MODULE,},
 }, {
 	/* Vitesse 8221 */
 	.phy_id		= PHY_ID_VSC8221,
@@ -238,6 +251,7 @@ static struct mdio_device_id __maybe_unused vitesse_tbl[] = {
 	{ PHY_ID_VSC8234, 0x000ffff0 },
 	{ PHY_ID_VSC8244, 0x000fffc0 },
 	{ PHY_ID_VSC8574, 0x000ffff0 },
+	{ PHY_ID_VSC8662, 0x000ffff0 },
 	{ PHY_ID_VSC8221, 0x000ffff0 },
 	{ PHY_ID_VSC8211, 0x000ffff0 },
 	{ }
-- 
cgit 


From 3fb69bcadda6263b92dbf8dd74717cba27c77ed9 Mon Sep 17 00:00:00 2001
From: Madalin Bucur <madalin.bucur@freescale.com>
Date: Wed, 20 Nov 2013 16:38:19 -0600
Subject: net/phy: Add the autocross feature for forced links on VSC82x4

Add auto-MDI/MDI-X capability for forced (autonegotiation disabled)
10/100 Mbps speeds on Vitesse VSC82x4 PHYs. Exported previously static
function genphy_setup_forced() required by the new config_aneg handler
in the Vitesse PHY module.

Signed-off-by: Madalin Bucur <madalin.bucur@freescale.com>
Signed-off-by: Shruti Kanetkar <Shruti@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/phy/phy_device.c |  4 +--
 drivers/net/phy/vitesse.c    | 75 +++++++++++++++++++++++++++++++++++++++++---
 include/linux/phy.h          |  1 +
 3 files changed, 73 insertions(+), 7 deletions(-)

diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c
index 74630e94fa3b..d6447b3f7409 100644
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -697,7 +697,7 @@ static int genphy_config_advert(struct phy_device *phydev)
  *   to the values in phydev. Assumes that the values are valid.
  *   Please see phy_sanitize_settings().
  */
-static int genphy_setup_forced(struct phy_device *phydev)
+int genphy_setup_forced(struct phy_device *phydev)
 {
 	int err;
 	int ctl = 0;
@@ -716,7 +716,7 @@ static int genphy_setup_forced(struct phy_device *phydev)
 
 	return err;
 }
-
+EXPORT_SYMBOL(genphy_setup_forced);
 
 /**
  * genphy_restart_aneg - Enable and Restart Autonegotiation
diff --git a/drivers/net/phy/vitesse.c b/drivers/net/phy/vitesse.c
index 40406bc2f8af..508e4359338b 100644
--- a/drivers/net/phy/vitesse.c
+++ b/drivers/net/phy/vitesse.c
@@ -3,7 +3,7 @@
  *
  * Author: Kriston Carson
  *
- * Copyright (c) 2005, 2009 Freescale Semiconductor, Inc.
+ * Copyright (c) 2005, 2009, 2011 Freescale Semiconductor, Inc.
  *
  * This program is free software; you can redistribute  it and/or modify it
  * under  the terms of  the GNU General  Public License as published by the
@@ -18,6 +18,11 @@
 #include <linux/ethtool.h>
 #include <linux/phy.h>
 
+/* Vitesse Extended Page Magic Register(s) */
+#define MII_VSC82X4_EXT_PAGE_16E	0x10
+#define MII_VSC82X4_EXT_PAGE_17E	0x11
+#define MII_VSC82X4_EXT_PAGE_18E	0x12
+
 /* Vitesse Extended Control Register 1 */
 #define MII_VSC8244_EXT_CON1           0x17
 #define MII_VSC8244_EXTCON1_INIT       0x0000
@@ -54,6 +59,9 @@
 #define MII_VSC8221_AUXCONSTAT_INIT	0x0004 /* need to set this bit? */
 #define MII_VSC8221_AUXCONSTAT_RESERVED	0x0004
 
+/* Vitesse Extended Page Access Register */
+#define MII_VSC82X4_EXT_PAGE_ACCESS	0x1f
+
 #define PHY_ID_VSC8234			0x000fc620
 #define PHY_ID_VSC8244			0x000fc6c0
 #define PHY_ID_VSC8574			0x000704a0
@@ -154,6 +162,63 @@ static int vsc8221_config_init(struct phy_device *phydev)
 	 */
 }
 
+/* vsc82x4_config_autocross_enable - Enable auto MDI/MDI-X for forced links
+ * @phydev: target phy_device struct
+ *
+ * Enable auto MDI/MDI-X when in 10/100 forced link speeds by writing
+ * special values in the VSC8234/VSC8244 extended reserved registers
+ */
+static int vsc82x4_config_autocross_enable(struct phy_device *phydev)
+{
+	int ret;
+
+	if (phydev->autoneg == AUTONEG_ENABLE || phydev->speed > SPEED_100)
+		return 0;
+
+	/* map extended registers set 0x10 - 0x1e */
+	ret = phy_write(phydev, MII_VSC82X4_EXT_PAGE_ACCESS, 0x52b5);
+	if (ret >= 0)
+		ret = phy_write(phydev, MII_VSC82X4_EXT_PAGE_18E, 0x0012);
+	if (ret >= 0)
+		ret = phy_write(phydev, MII_VSC82X4_EXT_PAGE_17E, 0x2803);
+	if (ret >= 0)
+		ret = phy_write(phydev, MII_VSC82X4_EXT_PAGE_16E, 0x87fa);
+	/* map standard registers set 0x10 - 0x1e */
+	if (ret >= 0)
+		ret = phy_write(phydev, MII_VSC82X4_EXT_PAGE_ACCESS, 0x0000);
+	else
+		phy_write(phydev, MII_VSC82X4_EXT_PAGE_ACCESS, 0x0000);
+
+	return ret;
+}
+
+/* vsc82x4_config_aneg - restart auto-negotiation or write BMCR
+ * @phydev: target phy_device struct
+ *
+ * Description: If auto-negotiation is enabled, we configure the
+ *   advertising, and then restart auto-negotiation.  If it is not
+ *   enabled, then we write the BMCR and also start the auto
+ *   MDI/MDI-X feature
+ */
+static int vsc82x4_config_aneg(struct phy_device *phydev)
+{
+	int ret;
+
+	/* Enable auto MDI/MDI-X when in 10/100 forced link speeds by
+	 * writing special values in the VSC8234 extended reserved registers
+	 */
+	if (phydev->autoneg != AUTONEG_ENABLE && phydev->speed <= SPEED_100) {
+		ret = genphy_setup_forced(phydev);
+
+		if (ret < 0) /* error */
+			return ret;
+
+		return vsc82x4_config_autocross_enable(phydev);
+	}
+
+	return genphy_config_aneg(phydev);
+}
+
 /* Vitesse 82xx */
 static struct phy_driver vsc82xx_driver[] = {
 {
@@ -163,7 +228,7 @@ static struct phy_driver vsc82xx_driver[] = {
 	.features       = PHY_GBIT_FEATURES,
 	.flags          = PHY_HAS_INTERRUPT,
 	.config_init    = &vsc824x_config_init,
-	.config_aneg    = &genphy_config_aneg,
+	.config_aneg    = &vsc82x4_config_aneg,
 	.read_status    = &genphy_read_status,
 	.ack_interrupt  = &vsc824x_ack_interrupt,
 	.config_intr    = &vsc82xx_config_intr,
@@ -175,7 +240,7 @@ static struct phy_driver vsc82xx_driver[] = {
 	.features	= PHY_GBIT_FEATURES,
 	.flags		= PHY_HAS_INTERRUPT,
 	.config_init	= &vsc824x_config_init,
-	.config_aneg	= &genphy_config_aneg,
+	.config_aneg	= &vsc82x4_config_aneg,
 	.read_status	= &genphy_read_status,
 	.ack_interrupt	= &vsc824x_ack_interrupt,
 	.config_intr	= &vsc82xx_config_intr,
@@ -187,7 +252,7 @@ static struct phy_driver vsc82xx_driver[] = {
 	.features       = PHY_GBIT_FEATURES,
 	.flags          = PHY_HAS_INTERRUPT,
 	.config_init    = &vsc824x_config_init,
-	.config_aneg    = &genphy_config_aneg,
+	.config_aneg    = &vsc82x4_config_aneg,
 	.read_status    = &genphy_read_status,
 	.ack_interrupt  = &vsc824x_ack_interrupt,
 	.config_intr    = &vsc82xx_config_intr,
@@ -199,7 +264,7 @@ static struct phy_driver vsc82xx_driver[] = {
 	.features       = PHY_GBIT_FEATURES,
 	.flags          = PHY_HAS_INTERRUPT,
 	.config_init    = &vsc824x_config_init,
-	.config_aneg    = &genphy_config_aneg,
+	.config_aneg    = &vsc82x4_config_aneg,
 	.read_status    = &genphy_read_status,
 	.ack_interrupt  = &vsc824x_ack_interrupt,
 	.config_intr    = &vsc82xx_config_intr,
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 64ab823f7b74..48a4dc3cb8cf 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -559,6 +559,7 @@ static inline int phy_read_status(struct phy_device *phydev) {
 	return phydev->drv->read_status(phydev);
 }
 
+int genphy_setup_forced(struct phy_device *phydev);
 int genphy_restart_aneg(struct phy_device *phydev);
 int genphy_config_aneg(struct phy_device *phydev);
 int genphy_update_link(struct phy_device *phydev);
-- 
cgit 


From 0221e670cd25bb41062031eaa653f6447707abc6 Mon Sep 17 00:00:00 2001
From: Xie XiuQi <xiexiuqi@huawei.com>
Date: Tue, 19 Nov 2013 13:15:43 -0800
Subject: Input: cyttsp4 -  remove unnecessary work pending test

Remove unnecessary work pending test before calling schedule_work().  It
has been tested in queue_work_on() already.

Signed-off-by: Xie XiuQi <xiexiuqi@huawei.com>
Reviewed-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/cyttsp4_core.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/input/touchscreen/cyttsp4_core.c b/drivers/input/touchscreen/cyttsp4_core.c
index 42d830efa316..a035a390f8e2 100644
--- a/drivers/input/touchscreen/cyttsp4_core.c
+++ b/drivers/input/touchscreen/cyttsp4_core.c
@@ -1246,8 +1246,7 @@ static void cyttsp4_watchdog_timer(unsigned long handle)
 
 	dev_vdbg(cd->dev, "%s: Watchdog timer triggered\n", __func__);
 
-	if (!work_pending(&cd->watchdog_work))
-		schedule_work(&cd->watchdog_work);
+	schedule_work(&cd->watchdog_work);
 
 	return;
 }
-- 
cgit 


From b64da05fb746c6ff5bcb9abeaa52684d1b08a2b9 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 19 Nov 2013 13:28:06 -0800
Subject: Input: hp_sdc_rtc - unlock on error in hp_sdc_rtc_read_i8042timer()

The transaction task here is hp_sdc_tasklet() and it releases the lock.
The problem is if we aren't able to queue the transaction then we need
to release the lock ourselves.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/misc/hp_sdc_rtc.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/input/misc/hp_sdc_rtc.c b/drivers/input/misc/hp_sdc_rtc.c
index 86b822806e95..45e0e3e55de2 100644
--- a/drivers/input/misc/hp_sdc_rtc.c
+++ b/drivers/input/misc/hp_sdc_rtc.c
@@ -180,7 +180,10 @@ static int64_t hp_sdc_rtc_read_i8042timer (uint8_t loadcmd, int numreg)
 	if (WARN_ON(down_interruptible(&i8042tregs)))
 		return -1;
 
-	if (hp_sdc_enqueue_transaction(&t)) return -1;
+	if (hp_sdc_enqueue_transaction(&t)) {
+		up(&i8042tregs);
+		return -1;
+	}
 	
 	/* Sleep until results come back. */
 	if (WARN_ON(down_interruptible(&i8042tregs)))
-- 
cgit 


From 2d4bba146e1975fc277a4509304d98761016b8b7 Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Tue, 19 Nov 2013 14:01:47 -0800
Subject: Input: atmel-wm97xx - fix compile error

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 drivers/input/touchscreen/atmel-wm97xx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/atmel-wm97xx.c b/drivers/input/touchscreen/atmel-wm97xx.c
index 268a35e55d7f..279c0e42b8a7 100644
--- a/drivers/input/touchscreen/atmel-wm97xx.c
+++ b/drivers/input/touchscreen/atmel-wm97xx.c
@@ -391,7 +391,7 @@ static int __exit atmel_wm97xx_remove(struct platform_device *pdev)
 }
 
 #ifdef CONFIG_PM_SLEEP
-static int atmel_wm97xx_suspend(struct *dev)
+static int atmel_wm97xx_suspend(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
 	struct atmel_wm97xx *atmel_wm97xx = platform_get_drvdata(pdev);
-- 
cgit 


From bd77c321945f652f6225847a8405f469601cd02c Mon Sep 17 00:00:00 2001
From: Haiyang Zhang <haiyangz@microsoft.com>
Date: Wed, 20 Nov 2013 21:03:23 -0800
Subject: MAINTAINERS - add keyboard driver to Hyper-V file list

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
---
 MAINTAINERS | 1 +
 1 file changed, 1 insertion(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 8a0cbf3cf2c8..0c8d926ea8c3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4008,6 +4008,7 @@ F:	arch/x86/include/uapi/asm/hyperv.h
 F:	arch/x86/kernel/cpu/mshyperv.c
 F:	drivers/hid/hid-hyperv.c
 F:	drivers/hv/
+F:	drivers/input/serio/hyperv-keyboard.c
 F:	drivers/net/hyperv/
 F:	drivers/scsi/storvsc_drv.c
 F:	drivers/video/hyperv_fb.c
-- 
cgit 


From 369653e4fb511928511b0ce81f41c812ff1f28b6 Mon Sep 17 00:00:00 2001
From: Eric Seppanen <eric@purestorage.com>
Date: Wed, 20 Nov 2013 14:19:51 -0800
Subject: iscsi-target: fix extract_param to handle buffer length corner case

extract_param() is called with max_length set to the total size of the
output buffer.  It's not safe to allow a parameter length equal to the
buffer size as the terminating null would be written one byte past the
end of the output buffer.

Signed-off-by: Eric Seppanen <eric@purestorage.com>
Cc: <stable@vger.kernel.org> #3.1+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/iscsi/iscsi_target_nego.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/target/iscsi/iscsi_target_nego.c b/drivers/target/iscsi/iscsi_target_nego.c
index 21265c9c12b5..635751be5af7 100644
--- a/drivers/target/iscsi/iscsi_target_nego.c
+++ b/drivers/target/iscsi/iscsi_target_nego.c
@@ -88,7 +88,7 @@ int extract_param(
 	if (len < 0)
 		return -1;
 
-	if (len > max_length) {
+	if (len >= max_length) {
 		pr_err("Length of input: %d exceeds max_length:"
 			" %d\n", len, max_length);
 		return -1;
-- 
cgit 


From 86784c6bdeeef78eed94d298be7a8879f6a97ee2 Mon Sep 17 00:00:00 2001
From: Eric Seppanen <eric@purestorage.com>
Date: Wed, 20 Nov 2013 14:19:52 -0800
Subject: iscsi-target: chap auth shouldn't match username with trailing
 garbage

In iSCSI negotiations with initiator CHAP enabled, usernames with
trailing garbage are permitted, because the string comparison only
checks the strlen of the configured username.

e.g. "usernameXXXXX" will be permitted to match "username".

Just check one more byte so the trailing null char is also matched.

Signed-off-by: Eric Seppanen <eric@purestorage.com>
Cc: <stable@vger.kernel.org> #3.1+
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
---
 drivers/target/iscsi/iscsi_target_auth.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c
index 164b87138faf..de77d9aa22c6 100644
--- a/drivers/target/iscsi/iscsi_target_auth.c
+++ b/drivers/target/iscsi/iscsi_target_auth.c
@@ -146,6 +146,7 @@ static int chap_server_compute_md5(
 	unsigned char client_digest[MD5_SIGNATURE_SIZE];
 	unsigned char server_digest[MD5_SIGNATURE_SIZE];
 	unsigned char chap_n[MAX_CHAP_N_SIZE], chap_r[MAX_RESPONSE_LENGTH];
+	size_t compare_len;
 	struct iscsi_chap *chap = conn->auth_protocol;
 	struct crypto_hash *tfm;
 	struct hash_desc desc;
@@ -184,7 +185,9 @@ static int chap_server_compute_md5(
 		goto out;
 	}
 
-	if (memcmp(chap_n, auth->userid, strlen(auth->userid)) != 0) {
+	/* Include the terminating NULL in the compare */
+	compare_len = strlen(auth->userid) + 1;
+	if (strncmp(chap_n, auth->userid, compare_len) != 0) {
 		pr_err("CHAP_N values do not match!\n");
 		goto out;
 	}
-- 
cgit 


From a30c9aaa900a5fda21b90d5d6a3eaa3cbf16e330 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 21 Nov 2013 08:00:20 +0100
Subject: ALSA: hda - Fix missing bass speaker on ASUS N550

The laptop has a built-in speaker on NID 0x1a.  It's an LFE only on
the right channel, so we need to provide an explicit chmap, too.

There might be other surround speakers, but they can fixed in addition
at later point, so let's fix the easier bass speaker at first.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=65091
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index a90bfab8530f..cc1dfdc1ff74 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4723,6 +4723,8 @@ enum {
 	ALC668_FIXUP_DELL_MIC_NO_PRESENCE,
 	ALC668_FIXUP_HEADSET_MODE,
 	ALC662_FIXUP_BASS_CHMAP,
+	ALC662_FIXUP_BASS_1A,
+	ALC662_FIXUP_BASS_1A_CHMAP,
 };
 
 static const struct hda_fixup alc662_fixups[] = {
@@ -4903,6 +4905,19 @@ static const struct hda_fixup alc662_fixups[] = {
 		.chained = true,
 		.chain_id = ALC662_FIXUP_ASUS_MODE4
 	},
+	[ALC662_FIXUP_BASS_1A] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			{0x1a, 0x80106111}, /* bass speaker */
+			{}
+		},
+	},
+	[ALC662_FIXUP_BASS_1A_CHMAP] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc662_fixup_bass_chmap,
+		.chained = true,
+		.chain_id = ALC662_FIXUP_BASS_1A,
+	},
 };
 
 static const struct snd_pci_quirk alc662_fixup_tbl[] = {
@@ -4918,6 +4933,7 @@ static const struct snd_pci_quirk alc662_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1028, 0x0625, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x0626, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x103c, 0x1632, "HP RP5800", ALC662_FIXUP_HP_RP5800),
+	SND_PCI_QUIRK(0x1043, 0x11cd, "Asus N550", ALC662_FIXUP_BASS_1A_CHMAP),
 	SND_PCI_QUIRK(0x1043, 0x1477, "ASUS N56VZ", ALC662_FIXUP_BASS_CHMAP),
 	SND_PCI_QUIRK(0x1043, 0x1bf3, "ASUS N76VZ", ALC662_FIXUP_BASS_CHMAP),
 	SND_PCI_QUIRK(0x1043, 0x8469, "ASUS mobo", ALC662_FIXUP_NO_JACK_DETECT),
-- 
cgit 


From 0f5a5b8515472a0219768423226b58228001e3d5 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 21 Nov 2013 09:12:52 +0100
Subject: ALSA: hda - Fix the headphone jack detection on Sony VAIO TX

BIOS sets MISC_NO_PRESENCE bit wrongly to the pin config on NID 0x0f.

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index cc1dfdc1ff74..1c6f00802719 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -1660,6 +1660,7 @@ static const struct snd_pci_quirk alc260_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1025, 0x008f, "Acer", ALC260_FIXUP_GPIO1),
 	SND_PCI_QUIRK(0x103c, 0x280a, "HP dc5750", ALC260_FIXUP_HP_DC5750),
 	SND_PCI_QUIRK(0x103c, 0x30ba, "HP Presario B1900", ALC260_FIXUP_HP_B1900),
+	SND_PCI_QUIRK(0x104d, 0x81e2, "Sony VAIO TX", ALC260_FIXUP_HP_PIN_0F),
 	SND_PCI_QUIRK(0x10cf, 0x1326, "FSC LifeBook S7020", ALC260_FIXUP_FSC_S7020),
 	SND_PCI_QUIRK(0x1509, 0x4540, "Favorit 100XS", ALC260_FIXUP_GPIO1),
 	SND_PCI_QUIRK(0x152d, 0x0729, "Quanta KN1", ALC260_FIXUP_KN1),
-- 
cgit 


From c3bddbda36a74225ad3d04aaa9600a25aff6b98b Mon Sep 17 00:00:00 2001
From: Inki Dae <inki.dae@samsung.com>
Date: Thu, 21 Nov 2013 12:09:51 +0900
Subject: drm/exynos: g2d: fix memory leak to userptr

This patch releases a vma object when cleaning up userptr resources.
A new vma object was allocated and copied when getting userptr pages
so the new vma object should be freed properly if the userptr pages
aren't used anymore.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/exynos/exynos_drm_g2d.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_g2d.c b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
index 3271fd4b1724..7bccedca487a 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_g2d.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_g2d.c
@@ -383,6 +383,8 @@ out:
 					g2d_userptr->npages,
 					g2d_userptr->vma);
 
+	exynos_gem_put_vma(g2d_userptr->vma);
+
 	if (!g2d_userptr->out_of_list)
 		list_del_init(&g2d_userptr->list);
 
-- 
cgit 


From 3d18bd41a82fac69c82e1725c7beea25b17a0190 Mon Sep 17 00:00:00 2001
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Thu, 7 Nov 2013 10:46:48 -0500
Subject: HID: appleir: force input to be set

Some weird remotes are not correctly creating the input device. Their
report descriptor starts with:
0x06, 0x00, 0xff,              // Usage Page (Vendor Defined Page 1)  0
0xa1, 0x01,                    // Collection (Application)            3

whereas others (which are correctly handled) start with:
0x05, 0x0c,                    // Usage Page (Consumer Devices)       0
0x09, 0x01,                    // Usage (Consumer Control)            2
0xa1, 0x01,                    // Collection (Application)            4

The rest of the report descriptor is the same.

Adding the quirk HID_QUIRK_HIDINPUT_FORCE forces hid-input to allocate
the inputs, and everything should be ok.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Tested-by: James Henstridge <james.henstridge@canonical.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-appleir.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/hid/hid-appleir.c b/drivers/hid/hid-appleir.c
index a42e6a394c5e..0e6a42d37eb6 100644
--- a/drivers/hid/hid-appleir.c
+++ b/drivers/hid/hid-appleir.c
@@ -297,6 +297,9 @@ static int appleir_probe(struct hid_device *hid, const struct hid_device_id *id)
 
 	appleir->hid = hid;
 
+	/* force input as some remotes bypass the input registration */
+	hid->quirks |= HID_QUIRK_HIDINPUT_FORCE;
+
 	spin_lock_init(&appleir->lock);
 	setup_timer(&appleir->key_up_timer,
 		    key_up_tick, (unsigned long) appleir);
-- 
cgit 


From bf9d121efc18c30caa2caad85358cf9408eca117 Mon Sep 17 00:00:00 2001
From: KaiChung Cheng <kenny_cheng@wistron.com>
Date: Thu, 21 Nov 2013 10:04:30 +0100
Subject: HID: multicouh: add PID VID to support 1 new Wistron optical touch
 device

This patch adds PID VID to support for the Wistron Inc. Optical touch panel.

Signed-off-by: KaiChung Cheng <kenny_cheng@wistron.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/Kconfig          | 1 +
 drivers/hid/hid-ids.h        | 3 +++
 drivers/hid/hid-multitouch.c | 6 ++++++
 3 files changed, 10 insertions(+)

diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 329fbb9b5976..34e2d39d4ce8 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -460,6 +460,7 @@ config HID_MULTITOUCH
 	  - Stantum multitouch panels
 	  - Touch International Panels
 	  - Unitec Panels
+	  - Wistron optical touch panels
 	  - XAT optical touch panels
 	  - Xiroku optical touch panels
 	  - Zytronic touch panels
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 60336f06874c..45bd7b9b4cb3 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -901,6 +901,9 @@
 #define USB_DEVICE_ID_SUPER_DUAL_BOX_PRO 0x8802
 #define USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO 0x8804
 
+#define USB_VENDOR_ID_WISTRON		0x0fb8
+#define USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH		0x1109
+
 #define USB_VENDOR_ID_X_TENSIONS               0x1ae7
 #define USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE    0x9001
 
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index a2cedb8ae1c0..d83b1e8b505b 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -1335,6 +1335,12 @@ static const struct hid_device_id mt_devices[] = {
 	{ .driver_data = MT_CLS_NSMU,
 		MT_USB_DEVICE(USB_VENDOR_ID_UNITEC,
 			USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
+
+	/* Wistron panels */
+	{ .driver_data = MT_CLS_NSMU,
+		MT_USB_DEVICE(USB_VENDOR_ID_WISTRON,
+			USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) },
+
 	/* XAT */
 	{ .driver_data = MT_CLS_NSMU,
 		MT_USB_DEVICE(USB_VENDOR_ID_XAT,
-- 
cgit 


From 8a3caa6d74597c2a083f7c87f866891a0b12540b Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Mon, 18 Nov 2013 10:35:55 +0100
Subject: KVM: kvm_clear_guest_page(): fix empty_zero_page usage

Using the address of 'empty_zero_page' as source address in order to
clear a page is wrong. On some architectures empty_zero_page is only the
pointer to the struct page of the empty_zero_page.  Therefore the clear
page operation would copy the contents of a couple of struct pages instead
of clearing a page.  For kvm only arm/arm64 are affected by this bug.

To fix this use the ZERO_PAGE macro instead which will return the struct
page address of the empty_zero_page on all architectures.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Gleb Natapov <gleb@redhat.com>
---
 virt/kvm/kvm_main.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index 662f34c3287e..a0aa84b5941a 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1615,8 +1615,9 @@ EXPORT_SYMBOL_GPL(kvm_read_guest_cached);
 
 int kvm_clear_guest_page(struct kvm *kvm, gfn_t gfn, int offset, int len)
 {
-	return kvm_write_guest_page(kvm, gfn, (const void *) empty_zero_page,
-				    offset, len);
+	const void *zero_page = (const void *) __va(page_to_phys(ZERO_PAGE(0)));
+
+	return kvm_write_guest_page(kvm, gfn, zero_page, offset, len);
 }
 EXPORT_SYMBOL_GPL(kvm_clear_guest_page);
 
-- 
cgit 


From 4a2c94c9b6c03af61b04993340bd9559e2277de4 Mon Sep 17 00:00:00 2001
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Wed, 20 Nov 2013 09:49:41 -0500
Subject: HID: kye: Add report fixup for Genius Manticore Keyboard

Genius Manticore Keyboard presents the same problem in its report
descriptors than Genius Gila Gaming Mouse and Genius Imperator Keyboard.
Use the same fixup.

Reported-and-tested-by: Adam Kulagowski <fidor@fidor.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-core.c | 1 +
 drivers/hid/hid-ids.h  | 1 +
 drivers/hid/hid-kye.c  | 5 +++++
 3 files changed, 7 insertions(+)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index 957d35ba84bc..253fe23ef7fe 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1723,6 +1723,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_MANTICORE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GX_IMPERATOR) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 45bd7b9b4cb3..f9304cb37154 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -489,6 +489,7 @@
 #define USB_VENDOR_ID_KYE		0x0458
 #define USB_DEVICE_ID_KYE_ERGO_525V	0x0087
 #define USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE	0x0138
+#define USB_DEVICE_ID_GENIUS_MANTICORE	0x0153
 #define USB_DEVICE_ID_GENIUS_GX_IMPERATOR	0x4018
 #define USB_DEVICE_ID_KYE_GPEN_560	0x5003
 #define USB_DEVICE_ID_KYE_EASYPEN_I405X	0x5010
diff --git a/drivers/hid/hid-kye.c b/drivers/hid/hid-kye.c
index 73845120295e..35a4f9cc4299 100644
--- a/drivers/hid/hid-kye.c
+++ b/drivers/hid/hid-kye.c
@@ -341,6 +341,9 @@ static __u8 *kye_report_fixup(struct hid_device *hdev, __u8 *rdesc,
 	case USB_DEVICE_ID_GENIUS_GX_IMPERATOR:
 		rdesc = kye_consumer_control_fixup(hdev, rdesc, rsize, 83,
 					"Genius Gx Imperator Keyboard");
+	case USB_DEVICE_ID_GENIUS_MANTICORE:
+		rdesc = kye_consumer_control_fixup(hdev, rdesc, rsize, 104,
+					"Genius Manticore Keyboard");
 		break;
 	}
 	return rdesc;
@@ -439,6 +442,8 @@ static const struct hid_device_id kye_devices[] = {
 				USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE,
 				USB_DEVICE_ID_GENIUS_GX_IMPERATOR) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE,
+				USB_DEVICE_ID_GENIUS_MANTICORE) },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, kye_devices);
-- 
cgit 


From 8a396321e2102d98a0d387c773be13b55d88ae6f Mon Sep 17 00:00:00 2001
From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Date: Wed, 20 Nov 2013 09:49:42 -0500
Subject: HID: kye: fix unresponsive keyboard

The manticore keyboard requires that all usb EP are opened at least
once to be fully functional. The third EP forwards to the user space
some vendor specific information about the keyboard state, but are useless
currently for the kernel.

Opening them and closing them makes the keyboard responsive again.

Reported-and-tested-by: Adam Kulagowski <fidor@fidor.org>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-kye.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/hid/hid-kye.c b/drivers/hid/hid-kye.c
index 35a4f9cc4299..ecb5ca669e97 100644
--- a/drivers/hid/hid-kye.c
+++ b/drivers/hid/hid-kye.c
@@ -421,6 +421,14 @@ static int kye_probe(struct hid_device *hdev, const struct hid_device_id *id)
 			goto enabling_err;
 		}
 		break;
+	case USB_DEVICE_ID_GENIUS_MANTICORE:
+		/*
+		 * The manticore keyboard needs to have all the interfaces
+		 * opened at least once to be fully functional.
+		 */
+		if (hid_hw_open(hdev))
+			hid_hw_close(hdev);
+		break;
 	}
 
 	return 0;
-- 
cgit 


From e3c4269d139db7471ee560fb30948179e180b3d4 Mon Sep 17 00:00:00 2001
From: Michal Nazarewicz <mina86@mina86.com>
Date: Tue, 12 Nov 2013 13:30:05 +0100
Subject: GFS2: fix potential NULL pointer dereference

Commit [e66cf1610: GFS2: Use lockref for glocks] replaced call:
    atomic_read(&gi->gl->gl_ref) == 0
with:
    __lockref_is_dead(&gl->gl_lockref)
therefore changing how gl is accessed, from gi->gl to plan gl.
However, gl can be a NULL pointer, and so gi->gl needs to be
used instead (which is guaranteed not to be NULL because fo
the while loop checking that condition).

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---
 fs/gfs2/glock.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/gfs2/glock.c b/fs/gfs2/glock.c
index e66a8009aff1..c8420f7e4db6 100644
--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -1899,7 +1899,8 @@ static int gfs2_glock_iter_next(struct gfs2_glock_iter *gi)
 			gi->nhash = 0;
 		}
 	/* Skip entries for other sb and dead entries */
-	} while (gi->sdp != gi->gl->gl_sbd || __lockref_is_dead(&gl->gl_lockref));
+	} while (gi->sdp != gi->gl->gl_sbd ||
+		 __lockref_is_dead(&gi->gl->gl_lockref));
 
 	return 0;
 }
-- 
cgit 


From 760c960bd6880cf22a57c0af9ff60c96250aad39 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Thu, 21 Nov 2013 20:50:50 +1000
Subject: drm/sysfs: fix hotplug regression since lifetime changes

airlied:
The lifetime changes introduced in 5bdebb183c9702a8c57a01dff09337be3de337a6
tried to use device_create, however that led to the regression where dev->type
wasn't getting set correctly. First attempt at fixing it would have led to
a race, so this undoes the device_createa work and does it all manually
making sure the dev->type is setup before we register the device.

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/drm_sysfs.c | 40 +++++++++++++++++++++++++++++++++-------
 1 file changed, 33 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index 1a35ea53106b..bd2bca395792 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -489,6 +489,11 @@ void drm_sysfs_hotplug_event(struct drm_device *dev)
 }
 EXPORT_SYMBOL(drm_sysfs_hotplug_event);
 
+static void drm_sysfs_release(struct device *dev)
+{
+	kfree(dev);
+}
+
 /**
  * drm_sysfs_device_add - adds a class device to sysfs for a character driver
  * @dev: DRM device to be added
@@ -501,6 +506,7 @@ EXPORT_SYMBOL(drm_sysfs_hotplug_event);
 int drm_sysfs_device_add(struct drm_minor *minor)
 {
 	char *minor_str;
+	int r;
 
 	if (minor->type == DRM_MINOR_CONTROL)
 		minor_str = "controlD%d";
@@ -509,14 +515,34 @@ int drm_sysfs_device_add(struct drm_minor *minor)
         else
                 minor_str = "card%d";
 
-	minor->kdev = device_create(drm_class, minor->dev->dev,
-				    MKDEV(DRM_MAJOR, minor->index),
-				    minor, minor_str, minor->index);
-	if (IS_ERR(minor->kdev)) {
-		DRM_ERROR("device create failed %ld\n", PTR_ERR(minor->kdev));
-		return PTR_ERR(minor->kdev);
+	minor->kdev = kzalloc(sizeof(*minor->kdev), GFP_KERNEL);
+	if (!minor->dev) {
+		r = -ENOMEM;
+		goto error;
 	}
+
+	device_initialize(minor->kdev);
+	minor->kdev->devt = MKDEV(DRM_MAJOR, minor->index);
+	minor->kdev->class = drm_class;
+	minor->kdev->type = &drm_sysfs_device_minor;
+	minor->kdev->parent = minor->dev->dev;
+	minor->kdev->release = drm_sysfs_release;
+	dev_set_drvdata(minor->kdev, minor);
+
+	r = dev_set_name(minor->kdev, minor_str, minor->index);
+	if (r < 0)
+		goto error;
+
+	r = device_add(minor->kdev);
+	if (r < 0)
+		goto error;
+
 	return 0;
+
+error:
+	DRM_ERROR("device create failed %d\n", r);
+	put_device(minor->kdev);
+	return r;
 }
 
 /**
@@ -529,7 +555,7 @@ int drm_sysfs_device_add(struct drm_minor *minor)
 void drm_sysfs_device_remove(struct drm_minor *minor)
 {
 	if (minor->kdev)
-		device_destroy(drm_class, MKDEV(DRM_MAJOR, minor->index));
+		device_unregister(minor->kdev);
 	minor->kdev = NULL;
 }
 
-- 
cgit 


From bf9b448ef8430548d0608a38ebddbf7f6ca14ed1 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Thu, 21 Nov 2013 12:17:20 +0800
Subject: ACPICA: Debug output: Do not emit function nesting level for kernel
 build.

The nesting level is really only useful during a single-thread
execution. Therefore, only enable this output for the AcpiExec
utility. Also, only emit the thread ID when executing under AcpiExec.
(Context switches are still detected and a message is emitted.)
ACPICA BZ 972.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/utdebug.c | 31 ++++++++++++++++++++++++-------
 1 file changed, 24 insertions(+), 7 deletions(-)

diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c
index 1a67b3944b3b..03ae8affe48f 100644
--- a/drivers/acpi/acpica/utdebug.c
+++ b/drivers/acpi/acpica/utdebug.c
@@ -185,6 +185,7 @@ acpi_debug_print(u32 requested_debug_level,
 		}
 
 		acpi_gbl_prev_thread_id = thread_id;
+		acpi_gbl_nesting_level = 0;
 	}
 
 	/*
@@ -193,13 +194,21 @@ acpi_debug_print(u32 requested_debug_level,
 	 */
 	acpi_os_printf("%9s-%04ld ", module_name, line_number);
 
+#ifdef ACPI_EXEC_APP
+	/*
+	 * For acpi_exec only, emit the thread ID and nesting level.
+	 * Note: nesting level is really only useful during a single-thread
+	 * execution. Otherwise, multiple threads will keep resetting the
+	 * level.
+	 */
 	if (ACPI_LV_THREADS & acpi_dbg_level) {
 		acpi_os_printf("[%u] ", (u32)thread_id);
 	}
 
-	acpi_os_printf("[%02ld] %-22.22s: ",
-		       acpi_gbl_nesting_level,
-		       acpi_ut_trim_function_name(function_name));
+	acpi_os_printf("[%02ld] ", acpi_gbl_nesting_level);
+#endif
+
+	acpi_os_printf("%-22.22s: ", acpi_ut_trim_function_name(function_name));
 
 	va_start(args, format);
 	acpi_os_vprintf(format, args);
@@ -420,7 +429,9 @@ acpi_ut_exit(u32 line_number,
 				 component_id, "%s\n", acpi_gbl_fn_exit_str);
 	}
 
-	acpi_gbl_nesting_level--;
+	if (acpi_gbl_nesting_level) {
+		acpi_gbl_nesting_level--;
+	}
 }
 
 ACPI_EXPORT_SYMBOL(acpi_ut_exit)
@@ -467,7 +478,9 @@ acpi_ut_status_exit(u32 line_number,
 		}
 	}
 
-	acpi_gbl_nesting_level--;
+	if (acpi_gbl_nesting_level) {
+		acpi_gbl_nesting_level--;
+	}
 }
 
 ACPI_EXPORT_SYMBOL(acpi_ut_status_exit)
@@ -504,7 +517,9 @@ acpi_ut_value_exit(u32 line_number,
 				 ACPI_FORMAT_UINT64(value));
 	}
 
-	acpi_gbl_nesting_level--;
+	if (acpi_gbl_nesting_level) {
+		acpi_gbl_nesting_level--;
+	}
 }
 
 ACPI_EXPORT_SYMBOL(acpi_ut_value_exit)
@@ -540,7 +555,9 @@ acpi_ut_ptr_exit(u32 line_number,
 				 ptr);
 	}
 
-	acpi_gbl_nesting_level--;
+	if (acpi_gbl_nesting_level) {
+		acpi_gbl_nesting_level--;
+	}
 }
 
 #endif
-- 
cgit 


From c38f671e390fe0d1605b402a28b01b1dbf8e10b3 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 21 Nov 2013 12:17:27 +0800
Subject: ACPICA: Tests: Add CHECKSUM_ABORT protection for test utilities.

This patch adds protection around ACPI_CHECKSUM_ABORT so that ACPI
user space test utilities can re-define it for their own purposes
(currently used by ASLTS build environment).

This patch doesn't affect Linux kernel behavior.  Lv Zheng.

Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/acpi/acconfig.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/acpi/acconfig.h b/include/acpi/acconfig.h
index d98c67001840..3ea214cff349 100644
--- a/include/acpi/acconfig.h
+++ b/include/acpi/acconfig.h
@@ -83,7 +83,9 @@
  * Should the subsystem abort the loading of an ACPI table if the
  * table checksum is incorrect?
  */
+#ifndef ACPI_CHECKSUM_ABORT
 #define ACPI_CHECKSUM_ABORT             FALSE
+#endif
 
 /*
  * Generate a version of ACPICA that only supports "reduced hardware"
-- 
cgit 


From 9a0a35972591f91167556b4a61673d08ef07f310 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Thu, 21 Nov 2013 12:17:34 +0800
Subject: ACPICA: Resources: Fix loop termination for the get AML length
 function.

The loop terminates on a NULL resource pointer, which can never
happen since the loop simply increments a valid resource pointer.
This fix changes the loop to terminate on an end-of-buffer condition.

Problem can be seen by callers to AcpiSetCurrentResources with an
invalid or corrupted resource descriptor; or a resource descriptor
without an END_TAG descriptor.

(refined by Bob Moore)
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/acresrc.h  |  6 +++---
 drivers/acpi/acpica/rscalc.c   |  9 +++++++--
 drivers/acpi/acpica/rscreate.c | 36 +++++++++++++++++-------------------
 drivers/acpi/acpica/rsutils.c  |  2 +-
 4 files changed, 28 insertions(+), 25 deletions(-)

diff --git a/drivers/acpi/acpica/acresrc.h b/drivers/acpi/acpica/acresrc.h
index f691d0e4d9fa..ff97430455cb 100644
--- a/drivers/acpi/acpica/acresrc.h
+++ b/drivers/acpi/acpica/acresrc.h
@@ -184,7 +184,7 @@ acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer,
 			     struct acpi_buffer *output_buffer);
 
 acpi_status
-acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer,
+acpi_rs_create_aml_resources(struct acpi_buffer *resource_list,
 			     struct acpi_buffer *output_buffer);
 
 acpi_status
@@ -227,8 +227,8 @@ acpi_rs_get_list_length(u8 * aml_buffer,
 			u32 aml_buffer_length, acpi_size * size_needed);
 
 acpi_status
-acpi_rs_get_aml_length(struct acpi_resource *linked_list_buffer,
-		       acpi_size * size_needed);
+acpi_rs_get_aml_length(struct acpi_resource *resource_list,
+		       acpi_size resource_list_size, acpi_size * size_needed);
 
 acpi_status
 acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object,
diff --git a/drivers/acpi/acpica/rscalc.c b/drivers/acpi/acpica/rscalc.c
index b62a0f4f4f9b..b60c9cf82862 100644
--- a/drivers/acpi/acpica/rscalc.c
+++ b/drivers/acpi/acpica/rscalc.c
@@ -174,6 +174,7 @@ acpi_rs_stream_option_length(u32 resource_length,
  * FUNCTION:    acpi_rs_get_aml_length
  *
  * PARAMETERS:  resource            - Pointer to the resource linked list
+ *              resource_list_size  - Size of the resource linked list
  *              size_needed         - Where the required size is returned
  *
  * RETURN:      Status
@@ -185,16 +186,20 @@ acpi_rs_stream_option_length(u32 resource_length,
  ******************************************************************************/
 
 acpi_status
-acpi_rs_get_aml_length(struct acpi_resource * resource, acpi_size * size_needed)
+acpi_rs_get_aml_length(struct acpi_resource *resource,
+		       acpi_size resource_list_size, acpi_size * size_needed)
 {
 	acpi_size aml_size_needed = 0;
+	struct acpi_resource *resource_end;
 	acpi_rs_length total_size;
 
 	ACPI_FUNCTION_TRACE(rs_get_aml_length);
 
 	/* Traverse entire list of internal resource descriptors */
 
-	while (resource) {
+	resource_end =
+	    ACPI_ADD_PTR(struct acpi_resource, resource, resource_list_size);
+	while (resource < resource_end) {
 
 		/* Validate the descriptor type */
 
diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica/rscreate.c
index 65f3e1c5b598..3a2ace93e62c 100644
--- a/drivers/acpi/acpica/rscreate.c
+++ b/drivers/acpi/acpica/rscreate.c
@@ -418,22 +418,21 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
  *
  * FUNCTION:    acpi_rs_create_aml_resources
  *
- * PARAMETERS:  linked_list_buffer      - Pointer to the resource linked list
- *              output_buffer           - Pointer to the user's buffer
+ * PARAMETERS:  resource_list           - Pointer to the resource list buffer
+ *              output_buffer           - Where the AML buffer is returned
  *
  * RETURN:      Status  AE_OK if okay, else a valid acpi_status code.
  *              If the output_buffer is too small, the error will be
  *              AE_BUFFER_OVERFLOW and output_buffer->Length will point
  *              to the size buffer needed.
  *
- * DESCRIPTION: Takes the linked list of device resources and
- *              creates a bytestream to be used as input for the
- *              _SRS control method.
+ * DESCRIPTION: Converts a list of device resources to an AML bytestream
+ *              to be used as input for the _SRS control method.
  *
  ******************************************************************************/
 
 acpi_status
-acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer,
+acpi_rs_create_aml_resources(struct acpi_buffer *resource_list,
 			     struct acpi_buffer *output_buffer)
 {
 	acpi_status status;
@@ -441,16 +440,16 @@ acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer,
 
 	ACPI_FUNCTION_TRACE(rs_create_aml_resources);
 
-	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "LinkedListBuffer = %p\n",
-			  linked_list_buffer));
+	/* Params already validated, no need to re-validate here */
 
-	/*
-	 * Params already validated, so we don't re-validate here
-	 *
-	 * Pass the linked_list_buffer into a module that calculates
-	 * the buffer size needed for the byte stream.
-	 */
-	status = acpi_rs_get_aml_length(linked_list_buffer, &aml_size_needed);
+	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ResourceList Buffer = %p\n",
+			  resource_list->pointer));
+
+	/* Get the buffer size needed for the AML byte stream */
+
+	status = acpi_rs_get_aml_length(resource_list->pointer,
+					resource_list->length,
+					&aml_size_needed);
 
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlSizeNeeded=%X, %s\n",
 			  (u32)aml_size_needed, acpi_format_exception(status)));
@@ -467,10 +466,9 @@ acpi_rs_create_aml_resources(struct acpi_resource *linked_list_buffer,
 
 	/* Do the conversion */
 
-	status =
-	    acpi_rs_convert_resources_to_aml(linked_list_buffer,
-					     aml_size_needed,
-					     output_buffer->pointer);
+	status = acpi_rs_convert_resources_to_aml(resource_list->pointer,
+						  aml_size_needed,
+						  output_buffer->pointer);
 	if (ACPI_FAILURE(status)) {
 		return_ACPI_STATUS(status);
 	}
diff --git a/drivers/acpi/acpica/rsutils.c b/drivers/acpi/acpica/rsutils.c
index aef303d56d86..14a7982c9961 100644
--- a/drivers/acpi/acpica/rsutils.c
+++ b/drivers/acpi/acpica/rsutils.c
@@ -753,7 +753,7 @@ acpi_rs_set_srs_method_data(struct acpi_namespace_node *node,
 	 * Convert the linked list into a byte stream
 	 */
 	buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
-	status = acpi_rs_create_aml_resources(in_buffer->pointer, &buffer);
+	status = acpi_rs_create_aml_resources(in_buffer, &buffer);
 	if (ACPI_FAILURE(status)) {
 		goto cleanup;
 	}
-- 
cgit 


From 794ba09bf30054c81832e61b49a64a56c95c5a9f Mon Sep 17 00:00:00 2001
From: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Date: Thu, 21 Nov 2013 12:19:55 +0800
Subject: ACPICA: Delete all attached data objects during namespace node
 deletion.

This fix updates namespace node deletion to delete the entire list
of attached objects (attached via acpi_attach_data) instead of
just one of the attached items. ACPICA BZ 1024.
Tomasz Nowicki (tomasz.nowicki@linaro.org).

Signed-off-by: Tomasz Nowicki <tomasz.nowicki@linaro.org>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/nsalloc.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/acpi/acpica/nsalloc.c b/drivers/acpi/acpica/nsalloc.c
index 243737363fb8..bc3f598257a2 100644
--- a/drivers/acpi/acpica/nsalloc.c
+++ b/drivers/acpi/acpica/nsalloc.c
@@ -106,6 +106,7 @@ struct acpi_namespace_node *acpi_ns_create_node(u32 name)
 void acpi_ns_delete_node(struct acpi_namespace_node *node)
 {
 	union acpi_operand_object *obj_desc;
+	union acpi_operand_object *next_desc;
 
 	ACPI_FUNCTION_NAME(ns_delete_node);
 
@@ -114,12 +115,13 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node)
 	acpi_ns_detach_object(node);
 
 	/*
-	 * Delete an attached data object if present (an object that was created
-	 * and attached via acpi_attach_data). Note: After any normal object is
-	 * detached above, the only possible remaining object is a data object.
+	 * Delete an attached data object list if present (objects that were
+	 * attached via acpi_attach_data). Note: After any normal object is
+	 * detached above, the only possible remaining object(s) are data
+	 * objects, in a linked list.
 	 */
 	obj_desc = node->object;
-	if (obj_desc && (obj_desc->common.type == ACPI_TYPE_LOCAL_DATA)) {
+	while (obj_desc && (obj_desc->common.type == ACPI_TYPE_LOCAL_DATA)) {
 
 		/* Invoke the attached data deletion handler if present */
 
@@ -127,7 +129,9 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node)
 			obj_desc->data.handler(node, obj_desc->data.pointer);
 		}
 
+		next_desc = obj_desc->common.next_object;
 		acpi_ut_remove_reference(obj_desc);
+		obj_desc = next_desc;
 	}
 
 	/* Now we can delete the node */
-- 
cgit 


From 3f69fe153133f781d546f0c53f7dd3889275c90d Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Thu, 21 Nov 2013 12:20:06 +0800
Subject: ACPICA: Add support to delete all objects attached to the root
 namespace node.

This fix deletes any and all objects that have been attached to the
root node (via acpi_attach_data). Reported by Tomasz Nowicki.
ACPICA BZ 1026.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/acpica/nsalloc.c |  6 ++++++
 drivers/acpi/acpica/nsutils.c | 18 ++++++++++--------
 2 files changed, 16 insertions(+), 8 deletions(-)

diff --git a/drivers/acpi/acpica/nsalloc.c b/drivers/acpi/acpica/nsalloc.c
index bc3f598257a2..fd1ff54cda19 100644
--- a/drivers/acpi/acpica/nsalloc.c
+++ b/drivers/acpi/acpica/nsalloc.c
@@ -134,6 +134,12 @@ void acpi_ns_delete_node(struct acpi_namespace_node *node)
 		obj_desc = next_desc;
 	}
 
+	/* Special case for the statically allocated root node */
+
+	if (node == acpi_gbl_root_node) {
+		return;
+	}
+
 	/* Now we can delete the node */
 
 	(void)acpi_os_release_object(acpi_gbl_namespace_cache, node);
diff --git a/drivers/acpi/acpica/nsutils.c b/drivers/acpi/acpica/nsutils.c
index cc2fea94c5f0..4a0665b6bcc1 100644
--- a/drivers/acpi/acpica/nsutils.c
+++ b/drivers/acpi/acpica/nsutils.c
@@ -593,24 +593,26 @@ struct acpi_namespace_node *acpi_ns_validate_handle(acpi_handle handle)
 
 void acpi_ns_terminate(void)
 {
-	union acpi_operand_object *obj_desc;
+	acpi_status status;
 
 	ACPI_FUNCTION_TRACE(ns_terminate);
 
 	/*
-	 * 1) Free the entire namespace -- all nodes and objects
-	 *
-	 * Delete all object descriptors attached to namepsace nodes
+	 * Free the entire namespace -- all nodes and all objects
+	 * attached to the nodes
 	 */
 	acpi_ns_delete_namespace_subtree(acpi_gbl_root_node);
 
-	/* Detach any objects attached to the root */
+	/* Delete any objects attached to the root node */
 
-	obj_desc = acpi_ns_get_attached_object(acpi_gbl_root_node);
-	if (obj_desc) {
-		acpi_ns_detach_object(acpi_gbl_root_node);
+	status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+	if (ACPI_FAILURE(status)) {
+		return_VOID;
 	}
 
+	acpi_ns_delete_node(acpi_gbl_root_node);
+	(void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE);
+
 	ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Namespace freed\n"));
 	return_VOID;
 }
-- 
cgit 


From a3ccfcc1e7b52047c840249e30008678ac1046c3 Mon Sep 17 00:00:00 2001
From: Bob Moore <robert.moore@intel.com>
Date: Thu, 21 Nov 2013 12:20:16 +0800
Subject: ACPICA: Update version to 20131115.

Version 20131115.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 include/acpi/acpixf.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index d8f9457755b4..4278aba96503 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -46,7 +46,7 @@
 
 /* Current ACPICA subsystem version in YYYYMMDD format */
 
-#define ACPI_CA_VERSION                 0x20130927
+#define ACPI_CA_VERSION                 0x20131115
 
 #include <acpi/acconfig.h>
 #include <acpi/actypes.h>
-- 
cgit 


From 083ca8c4172585409170dac9955a1da8137fef49 Mon Sep 17 00:00:00 2001
From: Daisuke HATAYAMA <d.hatayama@jp.fujitsu.com>
Date: Tue, 19 Nov 2013 17:54:47 +0900
Subject: ACPI / sysfs: Set file size for each exposed ACPI table

Currently, each of the ACPI tables exported from
/sys/firmware/acpi/tables is of zero size:

$ LANG=C ls -ld /sys/firmware/acpi/tables/*
-r-------- 1 root root 0 Nov 19 09:48 /sys/firmware/acpi/tables/APIC
-r-------- 1 root root 0 Nov 19 09:48 /sys/firmware/acpi/tables/BOOT
-r-------- 1 root root 0 Nov 19 14:25 /sys/firmware/acpi/tables/DSDT
-r-------- 1 root root 0 Nov 19 14:25 /sys/firmware/acpi/tables/FACP
-r-------- 1 root root 0 Nov 19 14:25 /sys/firmware/acpi/tables/FACS
-r-------- 1 root root 0 Nov 19 14:25 /sys/firmware/acpi/tables/MCFG
-r-------- 1 root root 0 Nov 19 14:25 /sys/firmware/acpi/tables/SRAT
drwxr-xr-x 2 root root 0 Nov 19 09:48 /sys/firmware/acpi/tables/dynamic/

due to which, user-land tools fail reading each table. For example:

$ acpidump -f /sys/firmware/acpi/tables/SRAT
Could not get input file size: /sys/firmware/acpi/tables/SRAT

To deal with the issue, this patch assigns size of each ACPI table to
the corresponding sysfs file.

$ LANG=C ls -hld /sys/firmware/acpi/tables/*
-r-------- 1 root root  94 Nov 19 16:45 /sys/firmware/acpi/tables/APIC
-r-------- 1 root root  40 Nov 19 16:45 /sys/firmware/acpi/tables/BOOT
-r-------- 1 root root 58K Nov 19 16:55 /sys/firmware/acpi/tables/DSDT
-r-------- 1 root root 244 Nov 19 16:55 /sys/firmware/acpi/tables/FACP
-r-------- 1 root root  64 Nov 19 16:55 /sys/firmware/acpi/tables/FACS
-r-------- 1 root root  60 Nov 19 16:55 /sys/firmware/acpi/tables/MCFG
-r-------- 1 root root 168 Nov 19 16:45 /sys/firmware/acpi/tables/SRAT
drwxr-xr-x 2 root root   0 Nov 19 16:55 /sys/firmware/acpi/tables/dynamic/

Then, user-land tools work well like:

$ acpidump -f /sys/firmware/acpi/tables/SRAT
SRAT @ 0x0000000000000000
  0000: 53 52 41 54 A8 00 00 00 02 65 56 4D 57 41 52 45  SRAT.....eVMWARE
  0010: 4D 45 4D 50 4C 55 47 20 00 00 04 06 56 4D 57 20  MEMPLUG ....VMW
  0020: 01 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00  ................
  0030: 01 28 00 00 00 00 00 00 00 00 00 00 00 00 00 00  .(..............
  0040: 00 00 0A 00 00 00 00 00 00 00 00 00 01 00 00 00  ................
  0050: 00 00 00 00 00 00 00 00 01 28 00 00 00 00 00 00  .........(......
  0060: 00 00 10 00 00 00 00 00 00 00 F0 BF 00 00 00 00  ................
  0070: 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00  ................
  0080: 01 28 00 00 00 00 00 00 00 00 00 00 01 00 00 00  .(..............
  0090: 00 00 00 40 00 00 00 00 00 00 00 00 01 00 00 00  ...@............
  00A0: 00 00 00 00 00 00 00 00                          ........

Signed-off-by: HATAYAMA Daisuke <d.hatayama@jp.fujitsu.com>
Acked-by: Toshi Kani <toshi.kani@hp.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index db5293650f62..45f82c751225 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -309,7 +309,7 @@ static void acpi_table_attr_init(struct acpi_table_attr *table_attr,
 		sprintf(table_attr->name + ACPI_NAME_SIZE, "%d",
 			table_attr->instance);
 
-	table_attr->attr.size = 0;
+	table_attr->attr.size = table_header->length;
 	table_attr->attr.read = acpi_table_show;
 	table_attr->attr.attr.name = table_attr->name;
 	table_attr->attr.attr.mode = 0400;
-- 
cgit 


From b8362e70cbbb397db50939bc4c7c78dc3246c3eb Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Thu, 21 Nov 2013 14:12:59 +0100
Subject: ALSA: hda - Add headset quirk for Dell Inspiron 3135

Cc: stable@vger.kernel.org (3.10+)
BugLink: https://bugs.launchpad.net/bugs/1253636
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 1c6f00802719..bb653dd0f813 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4153,6 +4153,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1028, 0x0608, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x0609, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x0613, "Dell", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE),
+	SND_PCI_QUIRK(0x1028, 0x0614, "Dell Inspiron 3135", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x0616, "Dell Vostro 5470", ALC290_FIXUP_MONO_SPEAKERS),
 	SND_PCI_QUIRK(0x1028, 0x061f, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x063f, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE),
-- 
cgit 


From de03beedb43fa1fd26792a4e502eeacbf5a6bade Mon Sep 17 00:00:00 2001
From: Jeremy Compostella <jeremy.compostella@intel.com>
Date: Thu, 21 Nov 2013 11:20:23 +0100
Subject: ACPI / sysfs: Fix incorrect ACPI tables walk in
 acpi_tables_sysfs_init()

When executing on an ACPI Hardware Reduced hardware, all the ACPI
tables are not exposed in sysfs due to the fact that FACS is
silently ignored by the kernel in the ACPI hardware reduced mode
and, moreover, the acpi_tables_sysfs_init() ACPI table walk
is buggy and stops too soon.

The acpi_tables_sysfs_init() function should rely on the acpi_status
return value from acpi_get_table_by_index() to decide whether or not
to stop the iteration (the walk should only be terminated when that
value is AE_BAD_PARAMETER).  This way, when running in an ACPI Harware
Reduced environment (where the FACS table is silently ignored by the
kernel) or if some ACPI tables are not correctly memory mapped or
have bad checksums, it will still walk through the remaining tables
that may be correct.

[rjw: Changelog]
Signed-off-by: Jeremy Compostella <jeremy.compostella@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/sysfs.c | 52 +++++++++++++++++++++++++++-------------------------
 1 file changed, 27 insertions(+), 25 deletions(-)

diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index 45f82c751225..6dbc3ca45223 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -354,8 +354,9 @@ static int acpi_tables_sysfs_init(void)
 {
 	struct acpi_table_attr *table_attr;
 	struct acpi_table_header *table_header = NULL;
-	int table_index = 0;
-	int result;
+	int table_index;
+	acpi_status status;
+	int ret;
 
 	tables_kobj = kobject_create_and_add("tables", acpi_kobj);
 	if (!tables_kobj)
@@ -365,33 +366,34 @@ static int acpi_tables_sysfs_init(void)
 	if (!dynamic_tables_kobj)
 		goto err_dynamic_tables;
 
-	do {
-		result = acpi_get_table_by_index(table_index, &table_header);
-		if (!result) {
-			table_index++;
-			table_attr = NULL;
-			table_attr =
-			    kzalloc(sizeof(struct acpi_table_attr), GFP_KERNEL);
-			if (!table_attr)
-				return -ENOMEM;
-
-			acpi_table_attr_init(table_attr, table_header);
-			result =
-			    sysfs_create_bin_file(tables_kobj,
-						  &table_attr->attr);
-			if (result) {
-				kfree(table_attr);
-				return result;
-			} else
-				list_add_tail(&table_attr->node,
-					      &acpi_table_attr_list);
+	for (table_index = 0;; table_index++) {
+		status = acpi_get_table_by_index(table_index, &table_header);
+
+		if (status == AE_BAD_PARAMETER)
+			break;
+
+		if (ACPI_FAILURE(status))
+			continue;
+
+		table_attr = NULL;
+		table_attr = kzalloc(sizeof(*table_attr), GFP_KERNEL);
+		if (!table_attr)
+			return -ENOMEM;
+
+		acpi_table_attr_init(table_attr, table_header);
+		ret = sysfs_create_bin_file(tables_kobj, &table_attr->attr);
+		if (ret) {
+			kfree(table_attr);
+			return ret;
 		}
-	} while (!result);
+		list_add_tail(&table_attr->node, &acpi_table_attr_list);
+	}
+
 	kobject_uevent(tables_kobj, KOBJ_ADD);
 	kobject_uevent(dynamic_tables_kobj, KOBJ_ADD);
-	result = acpi_install_table_handler(acpi_sysfs_table_handler, NULL);
+	status = acpi_install_table_handler(acpi_sysfs_table_handler, NULL);
 
-	return result == AE_OK ? 0 : -EINVAL;
+	return ACPI_FAILURE(status) ? -EINVAL : 0;
 err_dynamic_tables:
 	kobject_put(tables_kobj);
 err:
-- 
cgit 


From 906c176e541f89ed3c04d0e9af1c7cf7b3cc1adb Mon Sep 17 00:00:00 2001
From: David Sterba <dsterba@suse.cz>
Date: Wed, 20 Nov 2013 15:05:51 +0100
Subject: Documentation: filesystems: add new btrfs mount options

Two new options were added in 3.12: commit and rescan_uuid_tree

CC: linux-doc@vger.kernel.org
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 Documentation/filesystems/btrfs.txt | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/Documentation/filesystems/btrfs.txt b/Documentation/filesystems/btrfs.txt
index 9dae59407437..4ced8be43c88 100644
--- a/Documentation/filesystems/btrfs.txt
+++ b/Documentation/filesystems/btrfs.txt
@@ -70,6 +70,12 @@ Unless otherwise specified, all options default to off.
 
 	See comments at the top of fs/btrfs/check-integrity.c for more info.
 
+  commit=<seconds>
+	Set the interval of periodic commit, 30 seconds by default. Higher
+	values defer data being synced to permanent storage with obvious
+	consequences when the system crashes. The upper bound is not forced,
+	but a warning is printed if it's more than 300 seconds (5 minutes).
+
   compress
   compress=<type>
   compress-force
@@ -154,7 +160,11 @@ Unless otherwise specified, all options default to off.
 	Currently this scans a list of several previous tree roots and tries to 
 	use the first readable.
 
- skip_balance
+  rescan_uuid_tree
+	Force check and rebuild procedure of the UUID tree. This should not
+	normally be needed.
+
+  skip_balance
 	Skip automatic resume of interrupted balance operation after mount.
 	May be resumed with "btrfs balance resume."
 
-- 
cgit 


From c75017961ba7df5da148b48a905c97181587d562 Mon Sep 17 00:00:00 2001
From: David Sterba <dsterba@suse.cz>
Date: Wed, 20 Nov 2013 15:06:08 +0100
Subject: Documentation: filesystems: update btrfs tools section

The tools mentioned have been obsoleted long ago, replace
with the current ones.

CC: linux-doc@vger.kernel.org
Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---
 Documentation/filesystems/btrfs.txt | 22 ++++++----------------
 1 file changed, 6 insertions(+), 16 deletions(-)

diff --git a/Documentation/filesystems/btrfs.txt b/Documentation/filesystems/btrfs.txt
index 4ced8be43c88..5dd282dda55c 100644
--- a/Documentation/filesystems/btrfs.txt
+++ b/Documentation/filesystems/btrfs.txt
@@ -244,24 +244,14 @@ available from the git repository at the following location:
 
 These include the following tools:
 
-mkfs.btrfs: create a filesystem
+* mkfs.btrfs: create a filesystem
 
-btrfsctl: control program to create snapshots and subvolumes:
+* btrfs: a single tool to manage the filesystems, refer to the manpage for more details
 
-	mount /dev/sda2 /mnt
-	btrfsctl -s new_subvol_name /mnt
-	btrfsctl -s snapshot_of_default /mnt/default
-	btrfsctl -s snapshot_of_new_subvol /mnt/new_subvol_name
-	btrfsctl -s snapshot_of_a_snapshot /mnt/snapshot_of_new_subvol
-	ls /mnt
-	default snapshot_of_a_snapshot snapshot_of_new_subvol
-	new_subvol_name snapshot_of_default
+* 'btrfsck' or 'btrfs check': do a consistency check of the filesystem
 
-	Snapshots and subvolumes cannot be deleted right now, but you can
-	rm -rf all the files and directories inside them.
+Other tools for specific tasks:
 
-btrfsck: do a limited check of the FS extent trees.
+* btrfs-convert: in-place conversion from ext2/3/4 filesystems
 
-btrfs-debug-tree: print all of the FS metadata in text form.  Example:
-
-	btrfs-debug-tree /dev/sda2 >& big_output_file
+* btrfs-image: dump filesystem metadata for debugging
-- 
cgit 


From aec6f90d412fe30b88fdea3d1880734c837e15d4 Mon Sep 17 00:00:00 2001
From: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Date: Thu, 21 Nov 2013 04:43:11 +0100
Subject: wimax: remove dead code

This removes a code line that is between a "return 0;" and an error label.
This code line can never be reached.

Found by Coverity (CID: 1130529)

Signed-off-by: Michael Opdenacker <michael.opdenacker@free-electrons.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/wimax/stack.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/net/wimax/stack.c b/net/wimax/stack.c
index ef2191b969a7..ec8b577db135 100644
--- a/net/wimax/stack.c
+++ b/net/wimax/stack.c
@@ -610,7 +610,6 @@ int __init wimax_subsys_init(void)
 	d_fnend(4, NULL, "() = 0\n");
 	return 0;
 
-	genl_unregister_family(&wimax_gnl_family);
 error_register_family:
 	d_fnend(4, NULL, "() = %d\n", result);
 	return result;
-- 
cgit 


From db739ef37f07a1a12e388dbaec225d9d9d5d6ded Mon Sep 17 00:00:00 2001
From: David Vrabel <david.vrabel@citrix.com>
Date: Thu, 21 Nov 2013 15:26:09 +0000
Subject: xen-netback: stop the VIF thread before unbinding IRQs

If the VIF thread is still running after unbinding the Tx and Rx IRQs
in xenvif_disconnect(), the thread may attempt to raise an event which
will BUG (as the irq is unbound).

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/xen-netback/interface.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/xen-netback/interface.c b/drivers/net/xen-netback/interface.c
index b78ee10a956a..2329cccf1fa6 100644
--- a/drivers/net/xen-netback/interface.c
+++ b/drivers/net/xen-netback/interface.c
@@ -461,6 +461,9 @@ void xenvif_disconnect(struct xenvif *vif)
 	if (netif_carrier_ok(vif->dev))
 		xenvif_carrier_off(vif);
 
+	if (vif->task)
+		kthread_stop(vif->task);
+
 	if (vif->tx_irq) {
 		if (vif->tx_irq == vif->rx_irq)
 			unbind_from_irqhandler(vif->tx_irq, vif);
@@ -471,9 +474,6 @@ void xenvif_disconnect(struct xenvif *vif)
 		vif->tx_irq = 0;
 	}
 
-	if (vif->task)
-		kthread_stop(vif->task);
-
 	xenvif_unmap_frontend_rings(vif);
 }
 
-- 
cgit 


From e40526cb20b5ee53419452e1f03d97092f144418 Mon Sep 17 00:00:00 2001
From: Daniel Borkmann <dborkman@redhat.com>
Date: Thu, 21 Nov 2013 16:50:58 +0100
Subject: packet: fix use after free race in send path when dev is released

Salam reported a use after free bug in PF_PACKET that occurs when
we're sending out frames on a socket bound device and suddenly the
net device is being unregistered. It appears that commit 827d9780
introduced a possible race condition between {t,}packet_snd() and
packet_notifier(). In the case of a bound socket, packet_notifier()
can drop the last reference to the net_device and {t,}packet_snd()
might end up suddenly sending a packet over a freed net_device.

To avoid reverting 827d9780 and thus introducing a performance
regression compared to the current state of things, we decided to
hold a cached RCU protected pointer to the net device and maintain
it on write side via bind spin_lock protected register_prot_hook()
and __unregister_prot_hook() calls.

In {t,}packet_snd() path, we access this pointer under rcu_read_lock
through packet_cached_dev_get() that holds reference to the device
to prevent it from being freed through packet_notifier() while
we're in send path. This is okay to do as dev_put()/dev_hold() are
per-cpu counters, so this should not be a performance issue. Also,
the code simplifies a bit as we don't need need_rls_dev anymore.

Fixes: 827d978037d7 ("af-packet: Use existing netdev reference for bound sockets.")
Reported-by: Salam Noureddine <noureddine@aristanetworks.com>
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: Salam Noureddine <noureddine@aristanetworks.com>
Cc: Ben Greear <greearb@candelatech.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/packet/af_packet.c | 59 ++++++++++++++++++++++++++++++--------------------
 net/packet/internal.h  |  1 +
 2 files changed, 37 insertions(+), 23 deletions(-)

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 61bd50adead1..ac27c86ef6d1 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -244,11 +244,15 @@ static void __fanout_link(struct sock *sk, struct packet_sock *po);
 static void register_prot_hook(struct sock *sk)
 {
 	struct packet_sock *po = pkt_sk(sk);
+
 	if (!po->running) {
-		if (po->fanout)
+		if (po->fanout) {
 			__fanout_link(sk, po);
-		else
+		} else {
 			dev_add_pack(&po->prot_hook);
+			rcu_assign_pointer(po->cached_dev, po->prot_hook.dev);
+		}
+
 		sock_hold(sk);
 		po->running = 1;
 	}
@@ -266,10 +270,13 @@ static void __unregister_prot_hook(struct sock *sk, bool sync)
 	struct packet_sock *po = pkt_sk(sk);
 
 	po->running = 0;
-	if (po->fanout)
+	if (po->fanout) {
 		__fanout_unlink(sk, po);
-	else
+	} else {
 		__dev_remove_pack(&po->prot_hook);
+		RCU_INIT_POINTER(po->cached_dev, NULL);
+	}
+
 	__sock_put(sk);
 
 	if (sync) {
@@ -2052,12 +2059,24 @@ static int tpacket_fill_skb(struct packet_sock *po, struct sk_buff *skb,
 	return tp_len;
 }
 
+static struct net_device *packet_cached_dev_get(struct packet_sock *po)
+{
+	struct net_device *dev;
+
+	rcu_read_lock();
+	dev = rcu_dereference(po->cached_dev);
+	if (dev)
+		dev_hold(dev);
+	rcu_read_unlock();
+
+	return dev;
+}
+
 static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
 {
 	struct sk_buff *skb;
 	struct net_device *dev;
 	__be16 proto;
-	bool need_rls_dev = false;
 	int err, reserve = 0;
 	void *ph;
 	struct sockaddr_ll *saddr = (struct sockaddr_ll *)msg->msg_name;
@@ -2070,7 +2089,7 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
 	mutex_lock(&po->pg_vec_lock);
 
 	if (saddr == NULL) {
-		dev = po->prot_hook.dev;
+		dev	= packet_cached_dev_get(po);
 		proto	= po->num;
 		addr	= NULL;
 	} else {
@@ -2084,19 +2103,17 @@ static int tpacket_snd(struct packet_sock *po, struct msghdr *msg)
 		proto	= saddr->sll_protocol;
 		addr	= saddr->sll_addr;
 		dev = dev_get_by_index(sock_net(&po->sk), saddr->sll_ifindex);
-		need_rls_dev = true;
 	}
 
 	err = -ENXIO;
 	if (unlikely(dev == NULL))
 		goto out;
-
-	reserve = dev->hard_header_len;
-
 	err = -ENETDOWN;
 	if (unlikely(!(dev->flags & IFF_UP)))
 		goto out_put;
 
+	reserve = dev->hard_header_len;
+
 	size_max = po->tx_ring.frame_size
 		- (po->tp_hdrlen - sizeof(struct sockaddr_ll));
 
@@ -2173,8 +2190,7 @@ out_status:
 	__packet_set_status(po, ph, status);
 	kfree_skb(skb);
 out_put:
-	if (need_rls_dev)
-		dev_put(dev);
+	dev_put(dev);
 out:
 	mutex_unlock(&po->pg_vec_lock);
 	return err;
@@ -2212,7 +2228,6 @@ static int packet_snd(struct socket *sock,
 	struct sk_buff *skb;
 	struct net_device *dev;
 	__be16 proto;
-	bool need_rls_dev = false;
 	unsigned char *addr;
 	int err, reserve = 0;
 	struct virtio_net_hdr vnet_hdr = { 0 };
@@ -2228,7 +2243,7 @@ static int packet_snd(struct socket *sock,
 	 */
 
 	if (saddr == NULL) {
-		dev = po->prot_hook.dev;
+		dev	= packet_cached_dev_get(po);
 		proto	= po->num;
 		addr	= NULL;
 	} else {
@@ -2240,19 +2255,17 @@ static int packet_snd(struct socket *sock,
 		proto	= saddr->sll_protocol;
 		addr	= saddr->sll_addr;
 		dev = dev_get_by_index(sock_net(sk), saddr->sll_ifindex);
-		need_rls_dev = true;
 	}
 
 	err = -ENXIO;
-	if (dev == NULL)
+	if (unlikely(dev == NULL))
 		goto out_unlock;
-	if (sock->type == SOCK_RAW)
-		reserve = dev->hard_header_len;
-
 	err = -ENETDOWN;
-	if (!(dev->flags & IFF_UP))
+	if (unlikely(!(dev->flags & IFF_UP)))
 		goto out_unlock;
 
+	if (sock->type == SOCK_RAW)
+		reserve = dev->hard_header_len;
 	if (po->has_vnet_hdr) {
 		vnet_hdr_len = sizeof(vnet_hdr);
 
@@ -2386,15 +2399,14 @@ static int packet_snd(struct socket *sock,
 	if (err > 0 && (err = net_xmit_errno(err)) != 0)
 		goto out_unlock;
 
-	if (need_rls_dev)
-		dev_put(dev);
+	dev_put(dev);
 
 	return len;
 
 out_free:
 	kfree_skb(skb);
 out_unlock:
-	if (dev && need_rls_dev)
+	if (dev)
 		dev_put(dev);
 out:
 	return err;
@@ -2614,6 +2626,7 @@ static int packet_create(struct net *net, struct socket *sock, int protocol,
 	po = pkt_sk(sk);
 	sk->sk_family = PF_PACKET;
 	po->num = proto;
+	RCU_INIT_POINTER(po->cached_dev, NULL);
 
 	sk->sk_destruct = packet_sock_destruct;
 	sk_refcnt_debug_inc(sk);
diff --git a/net/packet/internal.h b/net/packet/internal.h
index c4e4b4561207..1035fa2d909c 100644
--- a/net/packet/internal.h
+++ b/net/packet/internal.h
@@ -113,6 +113,7 @@ struct packet_sock {
 	unsigned int		tp_loss:1;
 	unsigned int		tp_tx_has_off:1;
 	unsigned int		tp_tstamp;
+	struct net_device __rcu	*cached_dev;
 	struct packet_type	prot_hook ____cacheline_aligned_in_smp;
 };
 
-- 
cgit 


From 220815a9665f7deca98a09ecca655044f94cfa44 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 21 Nov 2013 18:17:04 +0100
Subject: genetlink: fix genlmsg_multicast() bug

Unfortunately, I introduced a tremendously stupid bug into
genlmsg_multicast() when doing all those multicast group
changes: it adjusts the group number, but then passes it
to genlmsg_multicast_netns() which does that again.

Somehow, my tests failed to catch this, so add a warning
into genlmsg_multicast_netns() and remove the offending
group ID adjustment.

Also add a warning to the similar code in other functions
so people who misuse them are more loudly warned.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/genetlink.h | 5 +----
 net/netlink/genetlink.c | 4 ++--
 2 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index ace4abf118d7..771af09e90eb 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -265,7 +265,7 @@ static inline int genlmsg_multicast_netns(struct genl_family *family,
 					  struct net *net, struct sk_buff *skb,
 					  u32 portid, unsigned int group, gfp_t flags)
 {
-	if (group >= family->n_mcgrps)
+	if (WARN_ON_ONCE(group >= family->n_mcgrps))
 		return -EINVAL;
 	group = family->mcgrp_offset + group;
 	return nlmsg_multicast(net->genl_sock, skb, portid, group, flags);
@@ -283,9 +283,6 @@ static inline int genlmsg_multicast(struct genl_family *family,
 				    struct sk_buff *skb, u32 portid,
 				    unsigned int group, gfp_t flags)
 {
-	if (group >= family->n_mcgrps)
-		return -EINVAL;
-	group = family->mcgrp_offset + group;
 	return genlmsg_multicast_netns(family, &init_net, skb,
 				       portid, group, flags);
 }
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 7dbc4f732c75..4518a57aa5fe 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -1045,7 +1045,7 @@ static int genlmsg_mcast(struct sk_buff *skb, u32 portid, unsigned long group,
 int genlmsg_multicast_allns(struct genl_family *family, struct sk_buff *skb,
 			    u32 portid, unsigned int group, gfp_t flags)
 {
-	if (group >= family->n_mcgrps)
+	if (WARN_ON_ONCE(group >= family->n_mcgrps))
 		return -EINVAL;
 	group = family->mcgrp_offset + group;
 	return genlmsg_mcast(skb, portid, group, flags);
@@ -1062,7 +1062,7 @@ void genl_notify(struct genl_family *family,
 	if (nlh)
 		report = nlmsg_report(nlh);
 
-	if (group >= family->n_mcgrps)
+	if (WARN_ON_ONCE(group >= family->n_mcgrps))
 		return;
 	group = family->mcgrp_offset + group;
 	nlmsg_notify(sk, skb, portid, group, report, flags);
-- 
cgit 


From 91398a0992c8aa18eb7749060b75761ece5ddc57 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 21 Nov 2013 18:20:28 +0100
Subject: genetlink: fix genl_set_err() group ID

Fix another really stupid bug - I introduced genl_set_err()
precisely to be able to adjust the group and reject invalid
ones, but then forgot to do so.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/genetlink.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 771af09e90eb..1b177ed803b7 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -384,6 +384,9 @@ static inline struct sk_buff *genlmsg_new(size_t payload, gfp_t flags)
 static inline int genl_set_err(struct genl_family *family, struct net *net,
 			       u32 portid, u32 group, int code)
 {
+	if (WARN_ON_ONCE(group >= family->n_mcgrps))
+		return -EINVAL;
+	group = family->mcgrp_offset + group;
 	return netlink_set_err(net->genl_sock, portid, group, code);
 }
 
-- 
cgit 


From ea0341e071527d5cec350917b01ab901af09d758 Mon Sep 17 00:00:00 2001
From: Steven Whitehouse <swhiteho@redhat.com>
Date: Thu, 21 Nov 2013 18:47:57 +0000
Subject: GFS2: Fix ref count bug relating to atomic_open

In the case that atomic_open calls finish_no_open() with
the dentry that was supplied to gfs2_atomic_open() an
extra reference count is required. This patch fixes that
issue preventing a bug trap triggering at umount time.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
---
 fs/gfs2/inode.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/gfs2/inode.c b/fs/gfs2/inode.c
index 1615df16cf4e..7119504159f1 100644
--- a/fs/gfs2/inode.c
+++ b/fs/gfs2/inode.c
@@ -1171,8 +1171,11 @@ static int gfs2_atomic_open(struct inode *dir, struct dentry *dentry,
 	if (d != NULL)
 		dentry = d;
 	if (dentry->d_inode) {
-		if (!(*opened & FILE_OPENED))
+		if (!(*opened & FILE_OPENED)) {
+			if (d == NULL)
+				dget(dentry);
 			return finish_no_open(file, dentry);
+		}
 		dput(d);
 		return 0;
 	}
-- 
cgit 


From 9d8506cc2d7ea1f911c72c100193a3677f6668c3 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Thu, 21 Nov 2013 11:10:04 -0800
Subject: gso: handle new frag_list of frags GRO packets

Recently GRO started generating packets with frag_lists of frags.
This was not handled by GSO, thus leading to a crash.

Thankfully these packets are of a regular form and are easy to
handle.  This patch handles them in two ways.  For completely
non-linear frag_list entries, we simply continue to iterate over
the frag_list frags once we exhaust the normal frags.  For frag_list
entries with linear parts, we call pskb_trim on the first part
of the frag_list skb, and then process the rest of the frags in
the usual way.

This patch also kills a chunk of dead frag_list code that has
obviously never ever been run since it ends up generating a bogus
GSO-segmented packet with a frag_list entry.

Future work is planned to split super big packets into TSO
ones.

Fixes: 8a29111c7ca6 ("net: gro: allow to build full sized skb")
Reported-by: Christoph Paasch <christoph.paasch@uclouvain.be>
Reported-by: Jerry Chu <hkchu@google.com>
Reported-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Tested-by: Sander Eikelenboom <linux@eikelenboom.it>
Tested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/skbuff.c | 75 ++++++++++++++++++++++++++++++++++++-------------------
 1 file changed, 50 insertions(+), 25 deletions(-)

diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 8cec1e6b844d..2718fed53d8c 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2796,6 +2796,7 @@ struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features)
 	struct sk_buff *segs = NULL;
 	struct sk_buff *tail = NULL;
 	struct sk_buff *fskb = skb_shinfo(skb)->frag_list;
+	skb_frag_t *skb_frag = skb_shinfo(skb)->frags;
 	unsigned int mss = skb_shinfo(skb)->gso_size;
 	unsigned int doffset = skb->data - skb_mac_header(skb);
 	unsigned int offset = doffset;
@@ -2835,16 +2836,38 @@ struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features)
 		if (hsize > len || !sg)
 			hsize = len;
 
-		if (!hsize && i >= nfrags) {
-			BUG_ON(fskb->len != len);
+		if (!hsize && i >= nfrags && skb_headlen(fskb) &&
+		    (skb_headlen(fskb) == len || sg)) {
+			BUG_ON(skb_headlen(fskb) > len);
+
+			i = 0;
+			nfrags = skb_shinfo(fskb)->nr_frags;
+			skb_frag = skb_shinfo(fskb)->frags;
+			pos += skb_headlen(fskb);
+
+			while (pos < offset + len) {
+				BUG_ON(i >= nfrags);
+
+				size = skb_frag_size(skb_frag);
+				if (pos + size > offset + len)
+					break;
+
+				i++;
+				pos += size;
+				skb_frag++;
+			}
 
-			pos += len;
 			nskb = skb_clone(fskb, GFP_ATOMIC);
 			fskb = fskb->next;
 
 			if (unlikely(!nskb))
 				goto err;
 
+			if (unlikely(pskb_trim(nskb, len))) {
+				kfree_skb(nskb);
+				goto err;
+			}
+
 			hsize = skb_end_offset(nskb);
 			if (skb_cow_head(nskb, doffset + headroom)) {
 				kfree_skb(nskb);
@@ -2881,7 +2904,7 @@ struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features)
 						 nskb->data - tnl_hlen,
 						 doffset + tnl_hlen);
 
-		if (fskb != skb_shinfo(skb)->frag_list)
+		if (nskb->len == len + doffset)
 			goto perform_csum_check;
 
 		if (!sg) {
@@ -2899,8 +2922,28 @@ struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features)
 
 		skb_shinfo(nskb)->tx_flags = skb_shinfo(skb)->tx_flags & SKBTX_SHARED_FRAG;
 
-		while (pos < offset + len && i < nfrags) {
-			*frag = skb_shinfo(skb)->frags[i];
+		while (pos < offset + len) {
+			if (i >= nfrags) {
+				BUG_ON(skb_headlen(fskb));
+
+				i = 0;
+				nfrags = skb_shinfo(fskb)->nr_frags;
+				skb_frag = skb_shinfo(fskb)->frags;
+
+				BUG_ON(!nfrags);
+
+				fskb = fskb->next;
+			}
+
+			if (unlikely(skb_shinfo(nskb)->nr_frags >=
+				     MAX_SKB_FRAGS)) {
+				net_warn_ratelimited(
+					"skb_segment: too many frags: %u %u\n",
+					pos, mss);
+				goto err;
+			}
+
+			*frag = *skb_frag;
 			__skb_frag_ref(frag);
 			size = skb_frag_size(frag);
 
@@ -2913,6 +2956,7 @@ struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features)
 
 			if (pos + size <= offset + len) {
 				i++;
+				skb_frag++;
 				pos += size;
 			} else {
 				skb_frag_size_sub(frag, pos + size - (offset + len));
@@ -2922,25 +2966,6 @@ struct sk_buff *skb_segment(struct sk_buff *skb, netdev_features_t features)
 			frag++;
 		}
 
-		if (pos < offset + len) {
-			struct sk_buff *fskb2 = fskb;
-
-			BUG_ON(pos + fskb->len != offset + len);
-
-			pos += fskb->len;
-			fskb = fskb->next;
-
-			if (fskb2->next) {
-				fskb2 = skb_clone(fskb2, GFP_ATOMIC);
-				if (!fskb2)
-					goto err;
-			} else
-				skb_get(fskb2);
-
-			SKB_FRAG_ASSERT(nskb);
-			skb_shinfo(nskb)->frag_list = fskb2;
-		}
-
 skip_fraglist:
 		nskb->data_len = len - hsize;
 		nskb->len += nskb->data_len;
-- 
cgit 


From 4b92894ee70c9110c083aa60b0663d357495864d Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Thu, 21 Nov 2013 16:11:15 -0700
Subject: spi: core: invert success test in devm_spi_register_master

devres_add() should be called when the action to be undone succeeded,
not when it failed. Fix the inverted test in devm_spi_register_master()
which was doing the opposite.

The user-visible issue without this fix is:
insmod spi-tegra114.ko
  Assume there's an MTD device on that SPI bus, which creates /dev/mtd0.
rmmod spi-tegra114
  Doesn't remove devices on the SPI bus.
insmod spi-tegra114.ko
  Creates a duplicate SPI device which creates /dev/mtd1.
hexdump -C /dev/mtd0
  That's the old device, which uses an SPI bus hosted by a non-existent
  module, which causes the oops below.

Unable to handle kernel paging request at virtual address bf0017c0
pgd = c0004000
[bf0017c0] *pgd=ad51b811, *pte=00000000, *ppte=00000000
Internal error: Oops: 80000007 [#1] PREEMPT SMP ARM
...
PC is at 0xbf0017c0
LR is at spi_pump_messages+0x15c/0x204
pc : [<bf0017c0>] lr : [<c02f0af8>] psr: 60000113
...

Fixes: 666d5b4c742b ("spi: core: Add devm_spi_register_master()")
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index 8d05accf706c..481e13f0db54 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1390,7 +1390,7 @@ int devm_spi_register_master(struct device *dev, struct spi_master *master)
 		return -ENOMEM;
 
 	ret = spi_register_master(master);
-	if (ret != 0) {
+	if (!ret) {
 		*ptr = master;
 		devres_add(dev, ptr);
 	} else {
-- 
cgit 


From 76ae281f6307331aa063288edb6422ae99f435f0 Mon Sep 17 00:00:00 2001
From: Junxiao Bi <junxiao.bi@oracle.com>
Date: Thu, 21 Nov 2013 14:31:56 -0800
Subject: configfs: fix race between dentry put and lookup

A race window in configfs, it starts from one dentry is UNHASHED and end
before configfs_d_iput is called.  In this window, if a lookup happen,
since the original dentry was UNHASHED, so a new dentry will be
allocated, and then in configfs_attach_attr(), sd->s_dentry will be
updated to the new dentry.  Then in configfs_d_iput(),
BUG_ON(sd->s_dentry != dentry) will be triggered and system panic.

sys_open:                     sys_close:
 ...                           fput
                                dput
                                 dentry_kill
                                  __d_drop <--- dentry unhashed here,
                                           but sd->dentry still point
                                           to this dentry.

 lookup_real
  configfs_lookup
   configfs_attach_attr---> update sd->s_dentry
                            to new allocated dentry here.

                                   d_kill
                                     configfs_d_iput <--- BUG_ON(sd->s_dentry != dentry)
                                                     triggered here.

To fix it, change configfs_d_iput to not update sd->s_dentry if
sd->s_count > 2, that means there are another dentry is using the sd
beside the one that is going to be put.  Use configfs_dirent_lock in
configfs_attach_attr to sync with configfs_d_iput.

With the following steps, you can reproduce the bug.

1. enable ocfs2, this will mount configfs at /sys/kernel/config and
   fill configure in it.

2. run the following script.
	while [ 1 ]; do cat /sys/kernel/config/cluster/$your_cluster_name/idle_timeout_ms > /dev/null; done &
	while [ 1 ]; do cat /sys/kernel/config/cluster/$your_cluster_name/idle_timeout_ms > /dev/null; done &

Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/configfs/dir.c | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index 4522e0755773..e081acbac2e7 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -56,10 +56,19 @@ static void configfs_d_iput(struct dentry * dentry,
 	struct configfs_dirent *sd = dentry->d_fsdata;
 
 	if (sd) {
-		BUG_ON(sd->s_dentry != dentry);
 		/* Coordinate with configfs_readdir */
 		spin_lock(&configfs_dirent_lock);
-		sd->s_dentry = NULL;
+		/* Coordinate with configfs_attach_attr where will increase
+		 * sd->s_count and update sd->s_dentry to new allocated one.
+		 * Only set sd->dentry to null when this dentry is the only
+		 * sd owner.
+		 * If not do so, configfs_d_iput may run just after
+		 * configfs_attach_attr and set sd->s_dentry to null
+		 * even it's still in use.
+		 */
+		if (atomic_read(&sd->s_count) <= 2)
+			sd->s_dentry = NULL;
+
 		spin_unlock(&configfs_dirent_lock);
 		configfs_put(sd);
 	}
@@ -416,8 +425,11 @@ static int configfs_attach_attr(struct configfs_dirent * sd, struct dentry * den
 	struct configfs_attribute * attr = sd->s_element;
 	int error;
 
+	spin_lock(&configfs_dirent_lock);
 	dentry->d_fsdata = configfs_get(sd);
 	sd->s_dentry = dentry;
+	spin_unlock(&configfs_dirent_lock);
+
 	error = configfs_create(dentry, (attr->ca_mode & S_IALLUGO) | S_IFREG,
 				configfs_init_file);
 	if (error) {
-- 
cgit 


From c11230f44b3c3e055e4e7cd572fc1c4a22c6f4a9 Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@perches.com>
Date: Thu, 21 Nov 2013 14:31:57 -0800
Subject: checkpatch: fix "Use of uninitialized value" warnings

checkpatch is currently confused about some complex macros and references
undefined variables $stat and $cond.

Make sure these are defined before using them.

Signed-off-by: Joe Perches <joe@perches.com>
Reported-by: Gerhard Sittig <gsi@denx.de>
Acked-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 scripts/checkpatch.pl | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 61090e0ff613..9c9810030377 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3289,6 +3289,7 @@ sub process {
 			}
 		}
 		if (!defined $suppress_whiletrailers{$linenr} &&
+		    defined($stat) && defined($cond) &&
 		    $line =~ /\b(?:if|while|for)\s*\(/ && $line !~ /^.\s*#/) {
 			my ($s, $c) = ($stat, $cond);
 
-- 
cgit 


From 30b0a105d9f7141e4cbf72ae5511832457d89788 Mon Sep 17 00:00:00 2001
From: Dave Hansen <dave.hansen@linux.intel.com>
Date: Thu, 21 Nov 2013 14:31:58 -0800
Subject: mm: thp: give transparent hugepage code a separate copy_page

Right now, the migration code in migrate_page_copy() uses copy_huge_page()
for hugetlbfs and thp pages:

       if (PageHuge(page) || PageTransHuge(page))
                copy_huge_page(newpage, page);

So, yay for code reuse.  But:

  void copy_huge_page(struct page *dst, struct page *src)
  {
        struct hstate *h = page_hstate(src);

and a non-hugetlbfs page has no page_hstate().  This works 99% of the
time because page_hstate() determines the hstate from the page order
alone.  Since the page order of a THP page matches the default hugetlbfs
page order, it works.

But, if you change the default huge page size on the boot command-line
(say default_hugepagesz=1G), then we might not even *have* a 2MB hstate
so page_hstate() returns null and copy_huge_page() oopses pretty fast
since copy_huge_page() dereferences the hstate:

  void copy_huge_page(struct page *dst, struct page *src)
  {
        struct hstate *h = page_hstate(src);
        if (unlikely(pages_per_huge_page(h) > MAX_ORDER_NR_PAGES)) {
  ...

Mel noticed that the migration code is really the only user of these
functions.  This moves all the copy code over to migrate.c and makes
copy_huge_page() work for THP by checking for it explicitly.

I believe the bug was introduced in commit b32967ff101a ("mm: numa: Add
THP migration for the NUMA working set scanning fault case")

[akpm@linux-foundation.org: fix coding-style and comment text, per Naoya Horiguchi]
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Hillf Danton <dhillf@gmail.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Tested-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/hugetlb.h |  4 ----
 mm/hugetlb.c            | 34 ----------------------------------
 mm/migrate.c            | 48 ++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 48 insertions(+), 38 deletions(-)

diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index acd2010328f3..85e0c58bdfdf 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -69,7 +69,6 @@ int dequeue_hwpoisoned_huge_page(struct page *page);
 bool isolate_huge_page(struct page *page, struct list_head *list);
 void putback_active_hugepage(struct page *page);
 bool is_hugepage_active(struct page *page);
-void copy_huge_page(struct page *dst, struct page *src);
 
 #ifdef CONFIG_ARCH_WANT_HUGE_PMD_SHARE
 pte_t *huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud);
@@ -140,9 +139,6 @@ static inline int dequeue_hwpoisoned_huge_page(struct page *page)
 #define isolate_huge_page(p, l) false
 #define putback_active_hugepage(p)	do {} while (0)
 #define is_hugepage_active(x)	false
-static inline void copy_huge_page(struct page *dst, struct page *src)
-{
-}
 
 static inline unsigned long hugetlb_change_protection(struct vm_area_struct *vma,
 		unsigned long address, unsigned long end, pgprot_t newprot)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 7d57af21f49e..2130365d387d 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -476,40 +476,6 @@ static int vma_has_reserves(struct vm_area_struct *vma, long chg)
 	return 0;
 }
 
-static void copy_gigantic_page(struct page *dst, struct page *src)
-{
-	int i;
-	struct hstate *h = page_hstate(src);
-	struct page *dst_base = dst;
-	struct page *src_base = src;
-
-	for (i = 0; i < pages_per_huge_page(h); ) {
-		cond_resched();
-		copy_highpage(dst, src);
-
-		i++;
-		dst = mem_map_next(dst, dst_base, i);
-		src = mem_map_next(src, src_base, i);
-	}
-}
-
-void copy_huge_page(struct page *dst, struct page *src)
-{
-	int i;
-	struct hstate *h = page_hstate(src);
-
-	if (unlikely(pages_per_huge_page(h) > MAX_ORDER_NR_PAGES)) {
-		copy_gigantic_page(dst, src);
-		return;
-	}
-
-	might_sleep();
-	for (i = 0; i < pages_per_huge_page(h); i++) {
-		cond_resched();
-		copy_highpage(dst + i, src + i);
-	}
-}
-
 static void enqueue_huge_page(struct hstate *h, struct page *page)
 {
 	int nid = page_to_nid(page);
diff --git a/mm/migrate.c b/mm/migrate.c
index 316e720a2023..bb940045fe85 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -441,6 +441,54 @@ int migrate_huge_page_move_mapping(struct address_space *mapping,
 	return MIGRATEPAGE_SUCCESS;
 }
 
+/*
+ * Gigantic pages are so large that we do not guarantee that page++ pointer
+ * arithmetic will work across the entire page.  We need something more
+ * specialized.
+ */
+static void __copy_gigantic_page(struct page *dst, struct page *src,
+				int nr_pages)
+{
+	int i;
+	struct page *dst_base = dst;
+	struct page *src_base = src;
+
+	for (i = 0; i < nr_pages; ) {
+		cond_resched();
+		copy_highpage(dst, src);
+
+		i++;
+		dst = mem_map_next(dst, dst_base, i);
+		src = mem_map_next(src, src_base, i);
+	}
+}
+
+static void copy_huge_page(struct page *dst, struct page *src)
+{
+	int i;
+	int nr_pages;
+
+	if (PageHuge(src)) {
+		/* hugetlbfs page */
+		struct hstate *h = page_hstate(src);
+		nr_pages = pages_per_huge_page(h);
+
+		if (unlikely(nr_pages > MAX_ORDER_NR_PAGES)) {
+			__copy_gigantic_page(dst, src, nr_pages);
+			return;
+		}
+	} else {
+		/* thp page */
+		BUG_ON(!PageTransHuge(src));
+		nr_pages = hpage_nr_pages(src);
+	}
+
+	for (i = 0; i < nr_pages; i++) {
+		cond_resched();
+		copy_highpage(dst + i, src + i);
+	}
+}
+
 /*
  * Copy the page to its new location
  */
-- 
cgit 


From a399b29dfbaaaf91162b2dc5a5875dd51bbfa2a1 Mon Sep 17 00:00:00 2001
From: Greg Thelen <gthelen@google.com>
Date: Thu, 21 Nov 2013 14:32:00 -0800
Subject: ipc,shm: fix shm_file deletion races

When IPC_RMID races with other shm operations there's potential for
use-after-free of the shm object's associated file (shm_file).

Here's the race before this patch:

  TASK 1                     TASK 2
  ------                     ------
  shm_rmid()
    ipc_lock_object()
                             shmctl()
                             shp = shm_obtain_object_check()

    shm_destroy()
      shum_unlock()
      fput(shp->shm_file)
                             ipc_lock_object()
                             shmem_lock(shp->shm_file)
                             <OOPS>

The oops is caused because shm_destroy() calls fput() after dropping the
ipc_lock.  fput() clears the file's f_inode, f_path.dentry, and
f_path.mnt, which causes various NULL pointer references in task 2.  I
reliably see the oops in task 2 if with shmlock, shmu

This patch fixes the races by:
1) set shm_file=NULL in shm_destroy() while holding ipc_object_lock().
2) modify at risk operations to check shm_file while holding
   ipc_object_lock().

Example workloads, which each trigger oops...

Workload 1:
  while true; do
    id=$(shmget 1 4096)
    shm_rmid $id &
    shmlock $id &
    wait
  done

  The oops stack shows accessing NULL f_inode due to racing fput:
    _raw_spin_lock
    shmem_lock
    SyS_shmctl

Workload 2:
  while true; do
    id=$(shmget 1 4096)
    shmat $id 4096 &
    shm_rmid $id &
    wait
  done

  The oops stack is similar to workload 1 due to NULL f_inode:
    touch_atime
    shmem_mmap
    shm_mmap
    mmap_region
    do_mmap_pgoff
    do_shmat
    SyS_shmat

Workload 3:
  while true; do
    id=$(shmget 1 4096)
    shmlock $id
    shm_rmid $id &
    shmunlock $id &
    wait
  done

  The oops stack shows second fput tripping on an NULL f_inode.  The
  first fput() completed via from shm_destroy(), but a racing thread did
  a get_file() and queued this fput():
    locks_remove_flock
    __fput
    ____fput
    task_work_run
    do_notify_resume
    int_signal

Fixes: c2c737a0461e ("ipc,shm: shorten critical region for shmat")
Fixes: 2caacaa82a51 ("ipc,shm: shorten critical region for shmctl")
Signed-off-by: Greg Thelen <gthelen@google.com>
Cc: Davidlohr Bueso <davidlohr@hp.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: <stable@vger.kernel.org>  # 3.10.17+ 3.11.6+
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 ipc/shm.c | 28 +++++++++++++++++++++++-----
 1 file changed, 23 insertions(+), 5 deletions(-)

diff --git a/ipc/shm.c b/ipc/shm.c
index d69739610fd4..0bdf21c6814e 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -208,15 +208,18 @@ static void shm_open(struct vm_area_struct *vma)
  */
 static void shm_destroy(struct ipc_namespace *ns, struct shmid_kernel *shp)
 {
+	struct file *shm_file;
+
+	shm_file = shp->shm_file;
+	shp->shm_file = NULL;
 	ns->shm_tot -= (shp->shm_segsz + PAGE_SIZE - 1) >> PAGE_SHIFT;
 	shm_rmid(ns, shp);
 	shm_unlock(shp);
-	if (!is_file_hugepages(shp->shm_file))
-		shmem_lock(shp->shm_file, 0, shp->mlock_user);
+	if (!is_file_hugepages(shm_file))
+		shmem_lock(shm_file, 0, shp->mlock_user);
 	else if (shp->mlock_user)
-		user_shm_unlock(file_inode(shp->shm_file)->i_size,
-						shp->mlock_user);
-	fput (shp->shm_file);
+		user_shm_unlock(file_inode(shm_file)->i_size, shp->mlock_user);
+	fput(shm_file);
 	ipc_rcu_putref(shp, shm_rcu_free);
 }
 
@@ -983,6 +986,13 @@ SYSCALL_DEFINE3(shmctl, int, shmid, int, cmd, struct shmid_ds __user *, buf)
 		}
 
 		shm_file = shp->shm_file;
+
+		/* check if shm_destroy() is tearing down shp */
+		if (shm_file == NULL) {
+			err = -EIDRM;
+			goto out_unlock0;
+		}
+
 		if (is_file_hugepages(shm_file))
 			goto out_unlock0;
 
@@ -1101,6 +1111,14 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, ulong *raddr,
 		goto out_unlock;
 
 	ipc_lock_object(&shp->shm_perm);
+
+	/* check if shm_destroy() is tearing down shp */
+	if (shp->shm_file == NULL) {
+		ipc_unlock_object(&shp->shm_perm);
+		err = -EIDRM;
+		goto out_unlock;
+	}
+
 	path = shp->shm_file->f_path;
 	path_get(&path);
 	shp->shm_nattch++;
-- 
cgit 


From 044c8d4b15743f6e0a4cb6f2aeb32745a116ebff Mon Sep 17 00:00:00 2001
From: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Date: Thu, 21 Nov 2013 14:32:01 -0800
Subject: kernel: remove CONFIG_USE_GENERIC_SMP_HELPERS cleanly

Remove CONFIG_USE_GENERIC_SMP_HELPERS left by commit 0a06ff068f12
("kernel: remove CONFIG_USE_GENERIC_SMP_HELPERS").

Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/block/null_blk.c | 8 ++++----
 net/Kconfig              | 4 ++--
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c
index b5d842370cc9..ea192ec029c4 100644
--- a/drivers/block/null_blk.c
+++ b/drivers/block/null_blk.c
@@ -223,7 +223,7 @@ static void null_softirq_done_fn(struct request *rq)
 	blk_end_request_all(rq, 0);
 }
 
-#if defined(CONFIG_SMP) && defined(CONFIG_USE_GENERIC_SMP_HELPERS)
+#ifdef CONFIG_SMP
 
 static void null_ipi_cmd_end_io(void *data)
 {
@@ -260,7 +260,7 @@ static void null_cmd_end_ipi(struct nullb_cmd *cmd)
 	put_cpu();
 }
 
-#endif /* CONFIG_SMP && CONFIG_USE_GENERIC_SMP_HELPERS */
+#endif /* CONFIG_SMP */
 
 static inline void null_handle_cmd(struct nullb_cmd *cmd)
 {
@@ -270,7 +270,7 @@ static inline void null_handle_cmd(struct nullb_cmd *cmd)
 		end_cmd(cmd);
 		break;
 	case NULL_IRQ_SOFTIRQ:
-#if defined(CONFIG_SMP) && defined(CONFIG_USE_GENERIC_SMP_HELPERS)
+#ifdef CONFIG_SMP
 		null_cmd_end_ipi(cmd);
 #else
 		end_cmd(cmd);
@@ -571,7 +571,7 @@ static int __init null_init(void)
 {
 	unsigned int i;
 
-#if !defined(CONFIG_SMP) || !defined(CONFIG_USE_GENERIC_SMP_HELPERS)
+#if !defined(CONFIG_SMP)
 	if (irqmode == NULL_IRQ_SOFTIRQ) {
 		pr_warn("null_blk: softirq completions not available.\n");
 		pr_warn("null_blk: using direct completions.\n");
diff --git a/net/Kconfig b/net/Kconfig
index 0715db64a5c3..d334678c0bd8 100644
--- a/net/Kconfig
+++ b/net/Kconfig
@@ -224,7 +224,7 @@ source "net/hsr/Kconfig"
 
 config RPS
 	boolean
-	depends on SMP && SYSFS && USE_GENERIC_SMP_HELPERS
+	depends on SMP && SYSFS
 	default y
 
 config RFS_ACCEL
@@ -235,7 +235,7 @@ config RFS_ACCEL
 
 config XPS
 	boolean
-	depends on SMP && USE_GENERIC_SMP_HELPERS
+	depends on SMP
 	default y
 
 config NETPRIO_CGROUP
-- 
cgit 


From 27c73ae759774e63313c1fbfeb17ba076cea64c5 Mon Sep 17 00:00:00 2001
From: Andrea Arcangeli <aarcange@redhat.com>
Date: Thu, 21 Nov 2013 14:32:02 -0800
Subject: mm: hugetlbfs: fix hugetlbfs optimization

Commit 7cb2ef56e6a8 ("mm: fix aio performance regression for database
caused by THP") can cause dereference of a dangling pointer if
split_huge_page runs during PageHuge() if there are updates to the
tail_page->private field.

Also it is repeating compound_head twice for hugetlbfs and it is running
compound_head+compound_trans_head for THP when a single one is needed in
both cases.

The new code within the PageSlab() check doesn't need to verify that the
THP page size is never bigger than the smallest hugetlbfs page size, to
avoid memory corruption.

A longstanding theoretical race condition was found while fixing the
above (see the change right after the skip_unlock label, that is
relevant for the compound_lock path too).

By re-establishing the _mapcount tail refcounting for all compound
pages, this also fixes the below problem:

  echo 0 >/sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages

  BUG: Bad page state in process bash  pfn:59a01
  page:ffffea000139b038 count:0 mapcount:10 mapping:          (null) index:0x0
  page flags: 0x1c00000000008000(tail)
  Modules linked in:
  CPU: 6 PID: 2018 Comm: bash Not tainted 3.12.0+ #25
  Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
  Call Trace:
    dump_stack+0x55/0x76
    bad_page+0xd5/0x130
    free_pages_prepare+0x213/0x280
    __free_pages+0x36/0x80
    update_and_free_page+0xc1/0xd0
    free_pool_huge_page+0xc2/0xe0
    set_max_huge_pages.part.58+0x14c/0x220
    nr_hugepages_store_common.isra.60+0xd0/0xf0
    nr_hugepages_store+0x13/0x20
    kobj_attr_store+0xf/0x20
    sysfs_write_file+0x189/0x1e0
    vfs_write+0xc5/0x1f0
    SyS_write+0x55/0xb0
    system_call_fastpath+0x16/0x1b

Signed-off-by: Khalid Aziz <khalid.aziz@oracle.com>
Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Tested-by: Khalid Aziz <khalid.aziz@oracle.com>
Cc: Pravin Shelar <pshelar@nicira.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ben Hutchings <bhutchings@solarflare.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Johannes Weiner <jweiner@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Minchan Kim <minchan@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/hugetlb.h |   6 ++
 mm/hugetlb.c            |  17 ++++++
 mm/swap.c               | 143 ++++++++++++++++++++++++++++--------------------
 3 files changed, 106 insertions(+), 60 deletions(-)

diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 85e0c58bdfdf..9649ff0c63f8 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -31,6 +31,7 @@ struct hugepage_subpool *hugepage_new_subpool(long nr_blocks);
 void hugepage_put_subpool(struct hugepage_subpool *spool);
 
 int PageHuge(struct page *page);
+int PageHeadHuge(struct page *page_head);
 
 void reset_vma_resv_huge_pages(struct vm_area_struct *vma);
 int hugetlb_sysctl_handler(struct ctl_table *, int, void __user *, size_t *, loff_t *);
@@ -103,6 +104,11 @@ static inline int PageHuge(struct page *page)
 	return 0;
 }
 
+static inline int PageHeadHuge(struct page *page_head)
+{
+	return 0;
+}
+
 static inline void reset_vma_resv_huge_pages(struct vm_area_struct *vma)
 {
 }
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 2130365d387d..dee6cf4e6d34 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -702,6 +702,23 @@ int PageHuge(struct page *page)
 }
 EXPORT_SYMBOL_GPL(PageHuge);
 
+/*
+ * PageHeadHuge() only returns true for hugetlbfs head page, but not for
+ * normal or transparent huge pages.
+ */
+int PageHeadHuge(struct page *page_head)
+{
+	compound_page_dtor *dtor;
+
+	if (!PageHead(page_head))
+		return 0;
+
+	dtor = get_compound_page_dtor(page_head);
+
+	return dtor == free_huge_page;
+}
+EXPORT_SYMBOL_GPL(PageHeadHuge);
+
 pgoff_t __basepage_index(struct page *page)
 {
 	struct page *page_head = compound_head(page);
diff --git a/mm/swap.c b/mm/swap.c
index 7a9f80d451f5..84b26aaabd03 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -82,19 +82,6 @@ static void __put_compound_page(struct page *page)
 
 static void put_compound_page(struct page *page)
 {
-	/*
-	 * hugetlbfs pages cannot be split from under us.  If this is a
-	 * hugetlbfs page, check refcount on head page and release the page if
-	 * the refcount becomes zero.
-	 */
-	if (PageHuge(page)) {
-		page = compound_head(page);
-		if (put_page_testzero(page))
-			__put_compound_page(page);
-
-		return;
-	}
-
 	if (unlikely(PageTail(page))) {
 		/* __split_huge_page_refcount can run under us */
 		struct page *page_head = compound_trans_head(page);
@@ -111,14 +98,31 @@ static void put_compound_page(struct page *page)
 			 * still hot on arches that do not support
 			 * this_cpu_cmpxchg_double().
 			 */
-			if (PageSlab(page_head)) {
-				if (PageTail(page)) {
+			if (PageSlab(page_head) || PageHeadHuge(page_head)) {
+				if (likely(PageTail(page))) {
+					/*
+					 * __split_huge_page_refcount
+					 * cannot race here.
+					 */
+					VM_BUG_ON(!PageHead(page_head));
+					atomic_dec(&page->_mapcount);
 					if (put_page_testzero(page_head))
 						VM_BUG_ON(1);
-
-					atomic_dec(&page->_mapcount);
-					goto skip_lock_tail;
+					if (put_page_testzero(page_head))
+						__put_compound_page(page_head);
+					return;
 				} else
+					/*
+					 * __split_huge_page_refcount
+					 * run before us, "page" was a
+					 * THP tail. The split
+					 * page_head has been freed
+					 * and reallocated as slab or
+					 * hugetlbfs page of smaller
+					 * order (only possible if
+					 * reallocated as slab on
+					 * x86).
+					 */
 					goto skip_lock;
 			}
 			/*
@@ -132,8 +136,27 @@ static void put_compound_page(struct page *page)
 				/* __split_huge_page_refcount run before us */
 				compound_unlock_irqrestore(page_head, flags);
 skip_lock:
-				if (put_page_testzero(page_head))
-					__put_single_page(page_head);
+				if (put_page_testzero(page_head)) {
+					/*
+					 * The head page may have been
+					 * freed and reallocated as a
+					 * compound page of smaller
+					 * order and then freed again.
+					 * All we know is that it
+					 * cannot have become: a THP
+					 * page, a compound page of
+					 * higher order, a tail page.
+					 * That is because we still
+					 * hold the refcount of the
+					 * split THP tail and
+					 * page_head was the THP head
+					 * before the split.
+					 */
+					if (PageHead(page_head))
+						__put_compound_page(page_head);
+					else
+						__put_single_page(page_head);
+				}
 out_put_single:
 				if (put_page_testzero(page))
 					__put_single_page(page);
@@ -155,7 +178,6 @@ out_put_single:
 			VM_BUG_ON(atomic_read(&page->_count) != 0);
 			compound_unlock_irqrestore(page_head, flags);
 
-skip_lock_tail:
 			if (put_page_testzero(page_head)) {
 				if (PageHead(page_head))
 					__put_compound_page(page_head);
@@ -198,51 +220,52 @@ bool __get_page_tail(struct page *page)
 	 * proper PT lock that already serializes against
 	 * split_huge_page().
 	 */
+	unsigned long flags;
 	bool got = false;
-	struct page *page_head;
-
-	/*
-	 * If this is a hugetlbfs page it cannot be split under us.  Simply
-	 * increment refcount for the head page.
-	 */
-	if (PageHuge(page)) {
-		page_head = compound_head(page);
-		atomic_inc(&page_head->_count);
-		got = true;
-	} else {
-		unsigned long flags;
+	struct page *page_head = compound_trans_head(page);
 
-		page_head = compound_trans_head(page);
-		if (likely(page != page_head &&
-					get_page_unless_zero(page_head))) {
-
-			/* Ref to put_compound_page() comment. */
-			if (PageSlab(page_head)) {
-				if (likely(PageTail(page))) {
-					__get_page_tail_foll(page, false);
-					return true;
-				} else {
-					put_page(page_head);
-					return false;
-				}
-			}
-
-			/*
-			 * page_head wasn't a dangling pointer but it
-			 * may not be a head page anymore by the time
-			 * we obtain the lock. That is ok as long as it
-			 * can't be freed from under us.
-			 */
-			flags = compound_lock_irqsave(page_head);
-			/* here __split_huge_page_refcount won't run anymore */
+	if (likely(page != page_head && get_page_unless_zero(page_head))) {
+		/* Ref to put_compound_page() comment. */
+		if (PageSlab(page_head) || PageHeadHuge(page_head)) {
 			if (likely(PageTail(page))) {
+				/*
+				 * This is a hugetlbfs page or a slab
+				 * page. __split_huge_page_refcount
+				 * cannot race here.
+				 */
+				VM_BUG_ON(!PageHead(page_head));
 				__get_page_tail_foll(page, false);
-				got = true;
-			}
-			compound_unlock_irqrestore(page_head, flags);
-			if (unlikely(!got))
+				return true;
+			} else {
+				/*
+				 * __split_huge_page_refcount run
+				 * before us, "page" was a THP
+				 * tail. The split page_head has been
+				 * freed and reallocated as slab or
+				 * hugetlbfs page of smaller order
+				 * (only possible if reallocated as
+				 * slab on x86).
+				 */
 				put_page(page_head);
+				return false;
+			}
+		}
+
+		/*
+		 * page_head wasn't a dangling pointer but it
+		 * may not be a head page anymore by the time
+		 * we obtain the lock. That is ok as long as it
+		 * can't be freed from under us.
+		 */
+		flags = compound_lock_irqsave(page_head);
+		/* here __split_huge_page_refcount won't run anymore */
+		if (likely(PageTail(page))) {
+			__get_page_tail_foll(page, false);
+			got = true;
 		}
+		compound_unlock_irqrestore(page_head, flags);
+		if (unlikely(!got))
+			put_page(page_head);
 	}
 	return got;
 }
-- 
cgit 


From 51a0d036f995585e8c5c30797d5bce28645d9dd7 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Thu, 21 Nov 2013 14:32:04 -0800
Subject: ARM: drivers/rtc/rtc-at91rm9200.c: disable interrupts at shutdown

Make sure RTC-interrupts are disabled at shutdown.

As the RTC is generally powered by backup power (VDDBU), its interrupts
are not disabled on wake-up, user, watchdog or software reset.  This
could cause troubles on other systems (e.g.  older kernels) if an
interrupt occurs before a handler has been installed at next boot.

Let us be well-behaved and disable them on clean shutdowns at least (as
do the RTT-based rtc-at91sam9 driver).

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Andrew Victor <linux@maxim.org.za>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/rtc/rtc-at91rm9200.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c
index 8b2cd8a5a2ff..c0da95e95702 100644
--- a/drivers/rtc/rtc-at91rm9200.c
+++ b/drivers/rtc/rtc-at91rm9200.c
@@ -428,6 +428,14 @@ static int __exit at91_rtc_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static void at91_rtc_shutdown(struct platform_device *pdev)
+{
+	/* Disable all interrupts */
+	at91_rtc_write(AT91_RTC_IDR, AT91_RTC_ACKUPD | AT91_RTC_ALARM |
+					AT91_RTC_SECEV | AT91_RTC_TIMEV |
+					AT91_RTC_CALEV);
+}
+
 #ifdef CONFIG_PM_SLEEP
 
 /* AT91RM9200 RTC Power management control */
@@ -466,6 +474,7 @@ static SIMPLE_DEV_PM_OPS(at91_rtc_pm_ops, at91_rtc_suspend, at91_rtc_resume);
 
 static struct platform_driver at91_rtc_driver = {
 	.remove		= __exit_p(at91_rtc_remove),
+	.shutdown	= at91_rtc_shutdown,
 	.driver		= {
 		.name	= "at91_rtc",
 		.owner	= THIS_MODULE,
-- 
cgit 


From 49204c116a9ee24536d371be02a2f05e6493c949 Mon Sep 17 00:00:00 2001
From: Antti P Miettinen <amiettinen@nvidia.com>
Date: Thu, 21 Nov 2013 14:32:05 -0800
Subject: block/partitions/efi.c: fix bound check

Use ARRAY_SIZE instead of sizeof to get proper max for label length.

Since this is just a read out of bounds it's not that bad, but the
problem becomes user-visible eg if one tries to use DEBUG_PAGEALLOC and
DEBUG_RODATA, at least with some enhancements from Hiroshi.  Of course
the destination array can contain garbage when we read beyond the end of
source array so that would be another user-visible problem.

Signed-off-by: Antti P Miettinen <amiettinen@nvidia.com>
Reviewed-by: Hiroshi Doyu <hdoyu@nvidia.com>
Tested-by: Hiroshi Doyu <hdoyu@nvidia.com>
Cc: Will Drewry <wad@chromium.org>
Cc: Matt Fleming <matt.fleming@intel.com>
Acked-by: Davidlohr Bueso <davidlohr@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 block/partitions/efi.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/block/partitions/efi.c b/block/partitions/efi.c
index a8287b49d062..dc51f467a560 100644
--- a/block/partitions/efi.c
+++ b/block/partitions/efi.c
@@ -96,6 +96,7 @@
  * - Code works, detects all the partitions.
  *
  ************************************************************/
+#include <linux/kernel.h>
 #include <linux/crc32.h>
 #include <linux/ctype.h>
 #include <linux/math64.h>
@@ -715,8 +716,8 @@ int efi_partition(struct parsed_partitions *state)
 		efi_guid_unparse(&ptes[i].unique_partition_guid, info->uuid);
 
 		/* Naively convert UTF16-LE to 7 bits. */
-		label_max = min(sizeof(info->volname) - 1,
-				sizeof(ptes[i].partition_name));
+		label_max = min(ARRAY_SIZE(info->volname) - 1,
+				ARRAY_SIZE(ptes[i].partition_name));
 		info->volname[label_max] = 0;
 		while (label_count < label_max) {
 			u8 c = ptes[i].partition_name[label_count] & 0xff;
-- 
cgit 


From b7a9f420ed737cb7cd4075ba06ac1a6f0da9f878 Mon Sep 17 00:00:00 2001
From: David Rientjes <rientjes@google.com>
Date: Thu, 21 Nov 2013 14:32:06 -0800
Subject: mm, mempolicy: silence gcc warning

Fengguang Wu reports that compiling mm/mempolicy.c results in a warning:

  mm/mempolicy.c: In function 'mpol_to_str':
  mm/mempolicy.c:2878:2: error: format not a string literal and no format arguments

Kees says this is because he is using -Wformat-security.

Silence the warning.

Signed-off-by: David Rientjes <rientjes@google.com>
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Suggested-by: Kees Cook <keescook@chromium.org>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 mm/mempolicy.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index c4403cdf3433..eca4a3129129 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -2950,7 +2950,7 @@ void mpol_to_str(char *buffer, int maxlen, struct mempolicy *pol)
 		return;
 	}
 
-	p += snprintf(p, maxlen, policy_modes[mode]);
+	p += snprintf(p, maxlen, "%s", policy_modes[mode]);
 
 	if (flags & MPOL_MODE_FLAGS) {
 		p += snprintf(p, buffer + maxlen - p, "=");
-- 
cgit 


From 3a72660b07d86d60457ca32080b1ce8c2b628ee2 Mon Sep 17 00:00:00 2001
From: Jesper Nilsson <jesper.nilsson@axis.com>
Date: Thu, 21 Nov 2013 14:32:08 -0800
Subject: ipc,shm: correct error return value in shmctl (SHM_UNLOCK)

Commit 2caacaa82a51 ("ipc,shm: shorten critical region for shmctl")
restructured the ipc shm to shorten critical region, but introduced a
path where the return value could be -EPERM, even if the operation
actually was performed.

Before the commit, the err return value was reset by the return value
from security_shm_shmctl() after the if (!ns_capable(...)) statement.

Now, we still exit the if statement with err set to -EPERM, and in the
case of SHM_UNLOCK, it is not reset at all, and used as the return value
from shmctl.

To fix this, we only set err when errors occur, leaving the fallthrough
case alone.

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Davidlohr Bueso <davidlohr@hp.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: <stable@vger.kernel.org>	[3.12.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 ipc/shm.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/ipc/shm.c b/ipc/shm.c
index 0bdf21c6814e..7a51443a51d6 100644
--- a/ipc/shm.c
+++ b/ipc/shm.c
@@ -977,12 +977,15 @@ SYSCALL_DEFINE3(shmctl, int, shmid, int, cmd, struct shmid_ds __user *, buf)
 		ipc_lock_object(&shp->shm_perm);
 		if (!ns_capable(ns->user_ns, CAP_IPC_LOCK)) {
 			kuid_t euid = current_euid();
-			err = -EPERM;
 			if (!uid_eq(euid, shp->shm_perm.uid) &&
-			    !uid_eq(euid, shp->shm_perm.cuid))
+			    !uid_eq(euid, shp->shm_perm.cuid)) {
+				err = -EPERM;
 				goto out_unlock0;
-			if (cmd == SHM_LOCK && !rlimit(RLIMIT_MEMLOCK))
+			}
+			if (cmd == SHM_LOCK && !rlimit(RLIMIT_MEMLOCK)) {
+				err = -EPERM;
 				goto out_unlock0;
+			}
 		}
 
 		shm_file = shp->shm_file;
-- 
cgit 


From c283610e44ec4ccc412dde8b71cf297ed9515f2f Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 21 Nov 2013 14:32:09 -0800
Subject: x86, mm: do not leak page->ptl for pmd page tables

There are two code paths how page with pmd page table can be freed:
pmd_free() and pmd_free_tlb().

I've missed the second one and didn't add page table destructor call
there.  It leads to leak of page->ptl for pmd page tables, if
dynamically allocated page->ptl is in use.

The patch adds the missed destructor and modifies documentation
accordingly.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-by: Andrey Vagin <avagin@openvz.org>
Tested-by: Andrey Vagin <avagin@openvz.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Documentation/vm/split_page_table_lock | 6 +++---
 arch/x86/mm/pgtable.c                  | 4 +++-
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/Documentation/vm/split_page_table_lock b/Documentation/vm/split_page_table_lock
index 7521d367f21d..6dea4fd5c961 100644
--- a/Documentation/vm/split_page_table_lock
+++ b/Documentation/vm/split_page_table_lock
@@ -63,9 +63,9 @@ levels.
 PMD split lock enabling requires pgtable_pmd_page_ctor() call on PMD table
 allocation and pgtable_pmd_page_dtor() on freeing.
 
-Allocation usually happens in pmd_alloc_one(), freeing in pmd_free(), but
-make sure you cover all PMD table allocation / freeing paths: i.e X86_PAE
-preallocate few PMDs on pgd_alloc().
+Allocation usually happens in pmd_alloc_one(), freeing in pmd_free() and
+pmd_free_tlb(), but make sure you cover all PMD table allocation / freeing
+paths: i.e X86_PAE preallocate few PMDs on pgd_alloc().
 
 With everything in place you can set CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK.
 
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 36aa999b2631..c96314abd144 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -61,6 +61,7 @@ void ___pte_free_tlb(struct mmu_gather *tlb, struct page *pte)
 #if PAGETABLE_LEVELS > 2
 void ___pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
 {
+	struct page *page = virt_to_page(pmd);
 	paravirt_release_pmd(__pa(pmd) >> PAGE_SHIFT);
 	/*
 	 * NOTE! For PAE, any changes to the top page-directory-pointer-table
@@ -69,7 +70,8 @@ void ___pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
 #ifdef CONFIG_X86_PAE
 	tlb->need_flush_all = 1;
 #endif
-	tlb_remove_page(tlb, virt_to_page(pmd));
+	pgtable_pmd_page_dtor(page);
+	tlb_remove_page(tlb, page);
 }
 
 #if PAGETABLE_LEVELS > 3
-- 
cgit 


From f92ca80b28a04c68c9de737383645d7effe97af0 Mon Sep 17 00:00:00 2001
From: Haiyang Zhang <haiyangz@microsoft.com>
Date: Thu, 21 Nov 2013 14:32:10 -0800
Subject: MAINTAINERS: add keyboard driver to Hyper-V file list

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 MAINTAINERS | 1 +
 1 file changed, 1 insertion(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 63f30484932b..1e3ace26b83b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4065,6 +4065,7 @@ F:	arch/x86/include/uapi/asm/hyperv.h
 F:	arch/x86/kernel/cpu/mshyperv.c
 F:	drivers/hid/hid-hyperv.c
 F:	drivers/hv/
+F:	drivers/input/serio/hyperv-keyboard.c
 F:	drivers/net/hyperv/
 F:	drivers/scsi/storvsc_drv.c
 F:	drivers/video/hyperv_fb.c
-- 
cgit 


From 7aa555bf26763b86332c7a3689701c999834b87a Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Date: Thu, 21 Nov 2013 14:32:11 -0800
Subject: mm: place page->pmd_huge_pte to right union

I don't know what went wrong, mis-merge or something, but ->pmd_huge_pte
placed in wrong union within struct page.

In original patch[1] it's placed to union with ->lru and ->slab, but in
commit e009bb30c8df ("mm: implement split page table lock for PMD
level") it's in union with ->index and ->freelist.

That union seems also unused for pages with table tables and safe to
re-use, but it's not what I've tested.

Let's move it to original place.  It fixes indentation at least.  :)

[1] https://lkml.org/lkml/2013/10/7/288

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/mm_types.h | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 10f5a7272b80..011eb85d7b0f 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -65,9 +65,6 @@ struct page {
 						 * this page is only used to
 						 * free other pages.
 						 */
-#if defined(CONFIG_TRANSPARENT_HUGEPAGE) && USE_SPLIT_PMD_PTLOCKS
-		pgtable_t pmd_huge_pte; /* protected by page->ptl */
-#endif
 		};
 
 		union {
@@ -135,6 +132,9 @@ struct page {
 
 		struct list_head list;	/* slobs list of pages */
 		struct slab *slab_page; /* slab fields */
+#if defined(CONFIG_TRANSPARENT_HUGEPAGE) && USE_SPLIT_PMD_PTLOCKS
+		pgtable_t pmd_huge_pte; /* protected by page->ptl */
+#endif
 	};
 
 	/* Remainder is not double word aligned */
-- 
cgit 


From d08c5ef2a039393eaf2ab2152db5f07790fa0f40 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 22 Nov 2013 08:06:36 +0100
Subject: ALSA: hda - Provide missing pin configs for VAIO with ALC260

Some models (or maybe depending on BIOS version) of Sony VAIO with
ALC260 give no proper pin configurations as default, resulting in the
non-working speaker, etc.  Just provide the whole pin configurations
via a fixup.

Reported-by: Matthew Markus <mmarkus@hearit.co>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index bb653dd0f813..6d8d9b3520d0 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -1512,6 +1512,7 @@ enum {
 	ALC260_FIXUP_KN1,
 	ALC260_FIXUP_FSC_S7020,
 	ALC260_FIXUP_FSC_S7020_JWSE,
+	ALC260_FIXUP_VAIO_PINS,
 };
 
 static void alc260_gpio1_automute(struct hda_codec *codec)
@@ -1652,6 +1653,24 @@ static const struct hda_fixup alc260_fixups[] = {
 		.chained = true,
 		.chain_id = ALC260_FIXUP_FSC_S7020,
 	},
+	[ALC260_FIXUP_VAIO_PINS] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			/* Pin configs are missing completely on some VAIOs */
+			{ 0x0f, 0x01211020 },
+			{ 0x10, 0x0001003f },
+			{ 0x11, 0x411111f0 },
+			{ 0x12, 0x01a15930 },
+			{ 0x13, 0x411111f0 },
+			{ 0x14, 0x411111f0 },
+			{ 0x15, 0x411111f0 },
+			{ 0x16, 0x411111f0 },
+			{ 0x17, 0x411111f0 },
+			{ 0x18, 0x411111f0 },
+			{ 0x19, 0x411111f0 },
+			{ }
+		}
+	},
 };
 
 static const struct snd_pci_quirk alc260_fixup_tbl[] = {
@@ -1660,6 +1679,7 @@ static const struct snd_pci_quirk alc260_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1025, 0x008f, "Acer", ALC260_FIXUP_GPIO1),
 	SND_PCI_QUIRK(0x103c, 0x280a, "HP dc5750", ALC260_FIXUP_HP_DC5750),
 	SND_PCI_QUIRK(0x103c, 0x30ba, "HP Presario B1900", ALC260_FIXUP_HP_B1900),
+	SND_PCI_QUIRK(0x104d, 0x81bb, "Sony VAIO", ALC260_FIXUP_VAIO_PINS),
 	SND_PCI_QUIRK(0x104d, 0x81e2, "Sony VAIO TX", ALC260_FIXUP_HP_PIN_0F),
 	SND_PCI_QUIRK(0x10cf, 0x1326, "FSC LifeBook S7020", ALC260_FIXUP_FSC_S7020),
 	SND_PCI_QUIRK(0x1509, 0x4540, "Favorit 100XS", ALC260_FIXUP_GPIO1),
-- 
cgit 


From 5db4d34b54c7726253926223580c516f244f9c31 Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Fri, 22 Nov 2013 12:17:06 +0100
Subject: ALSA: hda - Set current_headset_type to ALC_HEADSET_TYPE_ENUM
 (janitorial)

current_headset_type should be of the HEADSET_TYPE enum, not the
HEADSET_MODE enum. Since ALC_HEADSET_TYPE_UNKNOWN and ALC_HEADSET_MODE_UNKNOWN
are both 0, this patch is just janitorial.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 6d8d9b3520d0..5e42059f10a1 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3414,7 +3414,7 @@ static void alc_update_headset_mode_hook(struct hda_codec *codec,
 static void alc_update_headset_jack_cb(struct hda_codec *codec, struct hda_jack_tbl *jack)
 {
 	struct alc_spec *spec = codec->spec;
-	spec->current_headset_type = ALC_HEADSET_MODE_UNKNOWN;
+	spec->current_headset_type = ALC_HEADSET_TYPE_UNKNOWN;
 	snd_hda_gen_hp_automute(codec, jack);
 }
 
-- 
cgit 


From 82755abfe872c9f2b9a108641f98d08435762dc4 Mon Sep 17 00:00:00 2001
From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Date: Thu, 21 Nov 2013 14:21:06 +0900
Subject: ALSA: firewire-lib: fix wrong value for FDF field as an empty packet

This commit fix out of specification about the value of FDF field in out packet
with 'no data'. This affects blocking mode.

According to IEC 61883-6, there is two way to generate AMDTP packets include no
data in blocking mode.

Way 1. an empty packet defined in IEC 61883-1
 - Size of packet is 2 quadlets.
 - The value of FDF is sfc.
 - The packet includes only CIP headers

Way 2. a special non-empty packet defined in IEC 61883-6
 - Size of packet is following to blocking mode
 - The value of FDF is 0xff. This value is 'NO-DATA'. This means 'The receiver'
   must ignore all the data in a CIP with this FDF code'.
 - The packet includes dummy data.

But current implementation is a combination of them.
 - Size of packet is 2 (way 1)
 - FDF = 0xff (way 2)
This causes BeBoB chipset cannot sound.

This patch applies Way 1.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Cc: Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/firewire/amdtp.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/sound/firewire/amdtp.c b/sound/firewire/amdtp.c
index d3226892ad6b..9048777228e2 100644
--- a/sound/firewire/amdtp.c
+++ b/sound/firewire/amdtp.c
@@ -434,17 +434,14 @@ static void queue_out_packet(struct amdtp_out_stream *s, unsigned int cycle)
 		return;
 	index = s->packet_index;
 
+	/* this module generate empty packet for 'no data' */
 	syt = calculate_syt(s, cycle);
-	if (!(s->flags & CIP_BLOCKING)) {
+	if (!(s->flags & CIP_BLOCKING))
 		data_blocks = calculate_data_blocks(s);
-	} else {
-		if (syt != 0xffff) {
-			data_blocks = s->syt_interval;
-		} else {
-			data_blocks = 0;
-			syt = 0xffffff;
-		}
-	}
+	else if (syt != 0xffff)
+		data_blocks = s->syt_interval;
+	else
+		data_blocks = 0;
 
 	buffer = s->buffer.packets[index].buffer;
 	buffer[0] = cpu_to_be32(ACCESS_ONCE(s->source_node_id_field) |
-- 
cgit 


From 6ce4eac1f600b34f2f7f58f9cd8f0503d79e42ae Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri, 22 Nov 2013 11:30:55 -0800
Subject: Linux 3.13-rc1

---
 Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index 920ad07180c9..c0c2d58e3998 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 3
-PATCHLEVEL = 12
+PATCHLEVEL = 13
 SUBLEVEL = 0
-EXTRAVERSION =
+EXTRAVERSION = -rc1
 NAME = One Giant Leap for Frogkind
 
 # *DOCUMENTATION*
-- 
cgit 


From 4be77398ac9d948773116b6be4a3c91b3d6ea18c Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Fri, 22 Nov 2013 11:44:51 -0800
Subject: time: Fix 1ns/tick drift w/ GENERIC_TIME_VSYSCALL_OLD

Since commit 1e75fa8be9f (time: Condense timekeeper.xtime
into xtime_sec - merged in v3.6), there has been an problem
with the error accounting in the timekeeping code, such that
when truncating to nanoseconds, we round up to the next nsec,
but the balancing adjustment to the ntp_error value was dropped.

This causes 1ns per tick drift forward of the clock.

In 3.7, this logic was isolated to only GENERIC_TIME_VSYSCALL_OLD
architectures (s390, ia64, powerpc).

The fix is simply to balance the accounting and to subtract the
added nanosecond from ntp_error. This allows the internal long-term
clock steering to keep the clock accurate.

While this fix removes the regression added in 1e75fa8be9f, the
ideal solution is to move away from GENERIC_TIME_VSYSCALL_OLD
and use the new VSYSCALL method, which avoids entirely the
nanosecond granular rounding, and the resulting short-term clock
adjustment oscillation needed to keep long term accurate time.

[ jstultz: Many thanks to Martin for his efforts identifying this
  	   subtle bug, and providing the fix. ]

Originally-from: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Paul Turner <pjt@google.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Richard Cochran <richardcochran@gmail.com>
Cc: Prarit Bhargava <prarit@redhat.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: stable <stable@vger.kernel.org>  #v3.6+
Link: http://lkml.kernel.org/r/1385149491-20307-1-git-send-email-john.stultz@linaro.org
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 kernel/time/timekeeping.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 3abf53418b67..87b4f00284c9 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -1347,7 +1347,7 @@ static inline void old_vsyscall_fixup(struct timekeeper *tk)
 	tk->xtime_nsec -= remainder;
 	tk->xtime_nsec += 1ULL << tk->shift;
 	tk->ntp_error += remainder << tk->ntp_error_shift;
-
+	tk->ntp_error -= (1ULL << tk->shift) << tk->ntp_error_shift;
 }
 #else
 #define old_vsyscall_fixup(tk)
-- 
cgit 


From e5fca243abae1445afbfceebda5f08462ef869d3 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Fri, 22 Nov 2013 17:14:39 -0500
Subject: cgroup: use a dedicated workqueue for cgroup destruction

Since be44562613851 ("cgroup: remove synchronize_rcu() from
cgroup_diput()"), cgroup destruction path makes use of workqueue.  css
freeing is performed from a work item from that point on and a later
commit, ea15f8ccdb430 ("cgroup: split cgroup destruction into two
steps"), moves css offlining to workqueue too.

As cgroup destruction isn't depended upon for memory reclaim, the
destruction work items were put on the system_wq; unfortunately, some
controller may block in the destruction path for considerable duration
while holding cgroup_mutex.  As large part of destruction path is
synchronized through cgroup_mutex, when combined with high rate of
cgroup removals, this has potential to fill up system_wq's max_active
of 256.

Also, it turns out that memcg's css destruction path ends up queueing
and waiting for work items on system_wq through work_on_cpu().  If
such operation happens while system_wq is fully occupied by cgroup
destruction work items, work_on_cpu() can't make forward progress
because system_wq is full and other destruction work items on
system_wq can't make forward progress because the work item waiting
for work_on_cpu() is holding cgroup_mutex, leading to deadlock.

This can be fixed by queueing destruction work items on a separate
workqueue.  This patch creates a dedicated workqueue -
cgroup_destroy_wq - for this purpose.  As these work items shouldn't
have inter-dependencies and mostly serialized by cgroup_mutex anyway,
giving high concurrency level doesn't buy anything and the workqueue's
@max_active is set to 1 so that destruction work items are executed
one by one on each CPU.

Hugh Dickins: Because cgroup_init() is run before init_workqueues(),
cgroup_destroy_wq can't be allocated from cgroup_init().  Do it from a
separate core_initcall().  In the future, we probably want to reorder
so that workqueue init happens before cgroup_init().

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Hugh Dickins <hughd@google.com>
Reported-by: Shawn Bohrer <shawn.bohrer@gmail.com>
Link: http://lkml.kernel.org/r/20131111220626.GA7509@sbohrermbp13-local.rgmadvisors.com
Link: http://lkml.kernel.org/g/alpine.LNX.2.00.1310301606080.2333@eggly.anvils
Cc: stable@vger.kernel.org # v3.9+
---
 kernel/cgroup.c | 30 +++++++++++++++++++++++++++---
 1 file changed, 27 insertions(+), 3 deletions(-)

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 4c62513fe19f..a7b98ee35ef7 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -89,6 +89,14 @@ static DEFINE_MUTEX(cgroup_mutex);
 
 static DEFINE_MUTEX(cgroup_root_mutex);
 
+/*
+ * cgroup destruction makes heavy use of work items and there can be a lot
+ * of concurrent destructions.  Use a separate workqueue so that cgroup
+ * destruction work items don't end up filling up max_active of system_wq
+ * which may lead to deadlock.
+ */
+static struct workqueue_struct *cgroup_destroy_wq;
+
 /*
  * Generate an array of cgroup subsystem pointers. At boot time, this is
  * populated with the built in subsystems, and modular subsystems are
@@ -871,7 +879,7 @@ static void cgroup_free_rcu(struct rcu_head *head)
 	struct cgroup *cgrp = container_of(head, struct cgroup, rcu_head);
 
 	INIT_WORK(&cgrp->destroy_work, cgroup_free_fn);
-	schedule_work(&cgrp->destroy_work);
+	queue_work(cgroup_destroy_wq, &cgrp->destroy_work);
 }
 
 static void cgroup_diput(struct dentry *dentry, struct inode *inode)
@@ -4249,7 +4257,7 @@ static void css_free_rcu_fn(struct rcu_head *rcu_head)
 	 * css_put().  dput() requires process context which we don't have.
 	 */
 	INIT_WORK(&css->destroy_work, css_free_work_fn);
-	schedule_work(&css->destroy_work);
+	queue_work(cgroup_destroy_wq, &css->destroy_work);
 }
 
 static void css_release(struct percpu_ref *ref)
@@ -4539,7 +4547,7 @@ static void css_killed_ref_fn(struct percpu_ref *ref)
 		container_of(ref, struct cgroup_subsys_state, refcnt);
 
 	INIT_WORK(&css->destroy_work, css_killed_work_fn);
-	schedule_work(&css->destroy_work);
+	queue_work(cgroup_destroy_wq, &css->destroy_work);
 }
 
 /**
@@ -5063,6 +5071,22 @@ out:
 	return err;
 }
 
+static int __init cgroup_wq_init(void)
+{
+	/*
+	 * There isn't much point in executing destruction path in
+	 * parallel.  Good chunk is serialized with cgroup_mutex anyway.
+	 * Use 1 for @max_active.
+	 *
+	 * We would prefer to do this in cgroup_init() above, but that
+	 * is called before init_workqueues(): so leave this until after.
+	 */
+	cgroup_destroy_wq = alloc_workqueue("cgroup_destroy", 0, 1);
+	BUG_ON(!cgroup_destroy_wq);
+	return 0;
+}
+core_initcall(cgroup_wq_init);
+
 /*
  * proc_cgroup_show()
  *  - Print task's cgroup paths into seq_file, one line for each hierarchy
-- 
cgit 


From 2435dcb98cfe13c246aa27df393e22bc24bbcd20 Mon Sep 17 00:00:00 2001
From: Alistair Popple <alistair@popple.id.au>
Date: Fri, 22 Nov 2013 13:08:29 +1100
Subject: ahci: add support for IBM Akebono platform device

The new IBM Akebono board has a PPC476GTR SoC with an AHCI compliant
SATA controller. This patch adds a compatible property for the new SoC
to the AHCI platform driver.

Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
---
 drivers/ata/ahci_platform.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
index f9554318504f..4b231baceb09 100644
--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -329,6 +329,7 @@ static SIMPLE_DEV_PM_OPS(ahci_pm_ops, ahci_suspend, ahci_resume);
 static const struct of_device_id ahci_of_match[] = {
 	{ .compatible = "snps,spear-ahci", },
 	{ .compatible = "snps,exynos5440-ahci", },
+	{ .compatible = "ibm,476gtr-ahci", },
 	{},
 };
 MODULE_DEVICE_TABLE(of, ahci_of_match);
-- 
cgit 


From 6c9e1499861f34919beb279ea8c7a40378486a24 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Thu, 21 Nov 2013 11:07:09 +0800
Subject: pata_arasan_cf: add missing clk_disable_unprepare() on error path

Add the missing clk_disable_unprepare() before return from cf_init()
in the error handling case.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
---
 drivers/ata/pata_arasan_cf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
index e88690ebfd82..73492dd4a4bc 100644
--- a/drivers/ata/pata_arasan_cf.c
+++ b/drivers/ata/pata_arasan_cf.c
@@ -319,6 +319,7 @@ static int cf_init(struct arasan_cf_dev *acdev)
 	ret = clk_set_rate(acdev->clk, 166000000);
 	if (ret) {
 		dev_warn(acdev->host->dev, "clock set rate failed");
+		clk_disable_unprepare(acdev->clk);
 		return ret;
 	}
 
-- 
cgit 


From cbf8a358be27ceecea5bd44cf82ab01683fcc90c Mon Sep 17 00:00:00 2001
From: Tiejun Chen <tiejun.chen@windriver.com>
Date: Fri, 22 Nov 2013 10:49:00 +0800
Subject: powerpc/corenet64: compile with CONFIG_E{5,6}500_CPU well

If CONFIG_ALTIVEC is enabled for CoreNet64, and if we also
select CONFIG_E{5,6}500_CPU this may introduce -mcpu=e500mc64
into $CFLAGS. But Altivec option not allowed with e500mc64,
then some compiling errors occur like this:

      CC      arch/powerpc/lib/xor_vmx.o
    arch/powerpc/lib/xor_vmx.c:1:0: error: AltiVec not supported in this target
    make[1]: *** [arch/powerpc/lib/xor_vmx.o] Error 1
    make: *** [arch/powerpc/lib] Error 2

So we should restrict e500mc64 in altivec scenario.

Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/Makefile | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 8a2463670a5b..a284d7fbc97f 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -128,7 +128,12 @@ CFLAGS-$(CONFIG_POWER5_CPU) += $(call cc-option,-mcpu=power5)
 CFLAGS-$(CONFIG_POWER6_CPU) += $(call cc-option,-mcpu=power6)
 CFLAGS-$(CONFIG_POWER7_CPU) += $(call cc-option,-mcpu=power7)
 
+# Altivec option not allowed with e500mc64 in GCC.
+ifeq ($(CONFIG_ALTIVEC),y)
+E5500_CPU := -mcpu=powerpc64
+else
 E5500_CPU := $(call cc-option,-mcpu=e500mc64,-mcpu=powerpc64)
+endif
 CFLAGS-$(CONFIG_E5500_CPU) += $(E5500_CPU)
 CFLAGS-$(CONFIG_E6500_CPU) += $(call cc-option,-mcpu=e6500,$(E5500_CPU))
 
-- 
cgit 


From ae2163be10ac6090e7aeed72591e2d7fabb1cdda Mon Sep 17 00:00:00 2001
From: LEROY Christophe <christophe.leroy@c-s.fr>
Date: Fri, 22 Nov 2013 17:57:31 +0100
Subject: powerpc/8xx: mfspr SPRN_TBRx in lieu of mftb/mftbu is not supported

Commit beb2dc0a7a84be003ce54e98b95d65cc66e6e536 breaks the MPC8xx which
seems to not support using mfspr SPRN_TBRx instead of mftb/mftbu
despite what is written in the reference manual.

This patch reverts to the use of mftb/mftbu when CONFIG_8xx is
selected.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/boot/util.S                  | 14 ++++++++++++++
 arch/powerpc/include/asm/ppc_asm.h        |  2 ++
 arch/powerpc/include/asm/reg.h            |  7 +++++++
 arch/powerpc/include/asm/timex.h          |  8 ++++++++
 arch/powerpc/kernel/vdso32/gettimeofday.S |  6 ++++++
 5 files changed, 37 insertions(+)

diff --git a/arch/powerpc/boot/util.S b/arch/powerpc/boot/util.S
index 5143228e3e5f..6636b1d7821b 100644
--- a/arch/powerpc/boot/util.S
+++ b/arch/powerpc/boot/util.S
@@ -71,18 +71,32 @@ udelay:
 	add	r4,r4,r5
 	addi	r4,r4,-1
 	divw	r4,r4,r5	/* BUS ticks */
+#ifdef CONFIG_8xx
+1:	mftbu	r5
+	mftb	r6
+	mftbu	r7
+#else
 1:	mfspr	r5, SPRN_TBRU
 	mfspr	r6, SPRN_TBRL
 	mfspr	r7, SPRN_TBRU
+#endif
 	cmpw	0,r5,r7
 	bne	1b		/* Get [synced] base time */
 	addc	r9,r6,r4	/* Compute end time */
 	addze	r8,r5
+#ifdef CONFIG_8xx
+2:	mftbu	r5
+#else
 2:	mfspr	r5, SPRN_TBRU
+#endif
 	cmpw	0,r5,r8
 	blt	2b
 	bgt	3f
+#ifdef CONFIG_8xx
+	mftb	r6
+#else
 	mfspr	r6, SPRN_TBRL
+#endif
 	cmpw	0,r6,r9
 	blt	2b
 3:	blr
diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h
index 3c1acc31a092..f595b98079ee 100644
--- a/arch/powerpc/include/asm/ppc_asm.h
+++ b/arch/powerpc/include/asm/ppc_asm.h
@@ -366,6 +366,8 @@ BEGIN_FTR_SECTION_NESTED(96);		\
 	cmpwi dest,0;			\
 	beq-  90b;			\
 END_FTR_SECTION_NESTED(CPU_FTR_CELL_TB_BUG, CPU_FTR_CELL_TB_BUG, 96)
+#elif defined(CONFIG_8xx)
+#define MFTB(dest)			mftb dest
 #else
 #define MFTB(dest)			mfspr dest, SPRN_TBRL
 #endif
diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
index 5c45787d551e..fa8388ed94c5 100644
--- a/arch/powerpc/include/asm/reg.h
+++ b/arch/powerpc/include/asm/reg.h
@@ -1174,12 +1174,19 @@
 
 #else /* __powerpc64__ */
 
+#if defined(CONFIG_8xx)
+#define mftbl()		({unsigned long rval;	\
+			asm volatile("mftbl %0" : "=r" (rval)); rval;})
+#define mftbu()		({unsigned long rval;	\
+			asm volatile("mftbu %0" : "=r" (rval)); rval;})
+#else
 #define mftbl()		({unsigned long rval;	\
 			asm volatile("mfspr %0, %1" : "=r" (rval) : \
 				"i" (SPRN_TBRL)); rval;})
 #define mftbu()		({unsigned long rval;	\
 			asm volatile("mfspr %0, %1" : "=r" (rval) : \
 				"i" (SPRN_TBRU)); rval;})
+#endif
 #endif /* !__powerpc64__ */
 
 #define mttbl(v)	asm volatile("mttbl %0":: "r"(v))
diff --git a/arch/powerpc/include/asm/timex.h b/arch/powerpc/include/asm/timex.h
index 18908caa1f3b..2cf846edb3fc 100644
--- a/arch/powerpc/include/asm/timex.h
+++ b/arch/powerpc/include/asm/timex.h
@@ -29,7 +29,11 @@ static inline cycles_t get_cycles(void)
 	ret = 0;
 
 	__asm__ __volatile__(
+#ifdef CONFIG_8xx
+		"97:	mftb %0\n"
+#else
 		"97:	mfspr %0, %2\n"
+#endif
 		"99:\n"
 		".section __ftr_fixup,\"a\"\n"
 		".align 2\n"
@@ -41,7 +45,11 @@ static inline cycles_t get_cycles(void)
 		"	.long 0\n"
 		"	.long 0\n"
 		".previous"
+#ifdef CONFIG_8xx
+		: "=r" (ret) : "i" (CPU_FTR_601));
+#else
 		: "=r" (ret) : "i" (CPU_FTR_601), "i" (SPRN_TBRL));
+#endif
 	return ret;
 #endif
 }
diff --git a/arch/powerpc/kernel/vdso32/gettimeofday.S b/arch/powerpc/kernel/vdso32/gettimeofday.S
index 6b1f2a6d5517..6b2b69616e77 100644
--- a/arch/powerpc/kernel/vdso32/gettimeofday.S
+++ b/arch/powerpc/kernel/vdso32/gettimeofday.S
@@ -232,9 +232,15 @@ __do_get_tspec:
 	lwz	r6,(CFG_TB_ORIG_STAMP+4)(r9)
 
 	/* Get a stable TB value */
+#ifdef CONFIG_8xx
+2:	mftbu	r3
+	mftbl	r4
+	mftbu	r0
+#else
 2:	mfspr	r3, SPRN_TBRU
 	mfspr	r4, SPRN_TBRL
 	mfspr	r0, SPRN_TBRU
+#endif
 	cmplw	cr0,r3,r0
 	bne-	2b
 
-- 
cgit 


From 53567cf3c28d11f58927e5d4946a744ec2fbf06e Mon Sep 17 00:00:00 2001
From: Adam Borowski <kilobyte@angband.pl>
Date: Tue, 12 Nov 2013 17:56:51 +0100
Subject: powerpc/85xx: typo in dts: "interupt" (four devices)

These lines were inoperative for four years, which puts some doubt into
their importance, and it's possible the fixed version will regress, but
at the very least they should be removed instead.

Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Signed-off-by: Scott Wood <scottwood@freescale.com>
---
 arch/powerpc/boot/dts/xcalibur1501.dts | 4 ++--
 arch/powerpc/boot/dts/xpedite5301.dts  | 4 ++--
 arch/powerpc/boot/dts/xpedite5330.dts  | 4 ++--
 arch/powerpc/boot/dts/xpedite5370.dts  | 4 ++--
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/arch/powerpc/boot/dts/xcalibur1501.dts b/arch/powerpc/boot/dts/xcalibur1501.dts
index cc00f4ddd9a7..c409cbafb126 100644
--- a/arch/powerpc/boot/dts/xcalibur1501.dts
+++ b/arch/powerpc/boot/dts/xcalibur1501.dts
@@ -637,14 +637,14 @@
 		tlu@2f000 {
 			compatible = "fsl,mpc8572-tlu", "fsl_tlu";
 			reg = <0x2f000 0x1000>;
-			interupts = <61 2 >;
+			interrupts = <61 2>;
 			interrupt-parent = <&mpic>;
 		};
 
 		tlu@15000 {
 			compatible = "fsl,mpc8572-tlu", "fsl_tlu";
 			reg = <0x15000 0x1000>;
-			interupts = <75 2>;
+			interrupts = <75 2>;
 			interrupt-parent = <&mpic>;
 		};
 	};
diff --git a/arch/powerpc/boot/dts/xpedite5301.dts b/arch/powerpc/boot/dts/xpedite5301.dts
index 53c1c6a9752f..04cb410da48b 100644
--- a/arch/powerpc/boot/dts/xpedite5301.dts
+++ b/arch/powerpc/boot/dts/xpedite5301.dts
@@ -547,14 +547,14 @@
 		tlu@2f000 {
 			compatible = "fsl,mpc8572-tlu", "fsl_tlu";
 			reg = <0x2f000 0x1000>;
-			interupts = <61 2 >;
+			interrupts = <61 2>;
 			interrupt-parent = <&mpic>;
 		};
 
 		tlu@15000 {
 			compatible = "fsl,mpc8572-tlu", "fsl_tlu";
 			reg = <0x15000 0x1000>;
-			interupts = <75 2>;
+			interrupts = <75 2>;
 			interrupt-parent = <&mpic>;
 		};
 	};
diff --git a/arch/powerpc/boot/dts/xpedite5330.dts b/arch/powerpc/boot/dts/xpedite5330.dts
index 215225983150..73f8620f1ce7 100644
--- a/arch/powerpc/boot/dts/xpedite5330.dts
+++ b/arch/powerpc/boot/dts/xpedite5330.dts
@@ -583,14 +583,14 @@
 		tlu@2f000 {
 			compatible = "fsl,mpc8572-tlu", "fsl_tlu";
 			reg = <0x2f000 0x1000>;
-			interupts = <61 2 >;
+			interrupts = <61 2>;
 			interrupt-parent = <&mpic>;
 		};
 
 		tlu@15000 {
 			compatible = "fsl,mpc8572-tlu", "fsl_tlu";
 			reg = <0x15000 0x1000>;
-			interupts = <75 2>;
+			interrupts = <75 2>;
 			interrupt-parent = <&mpic>;
 		};
 	};
diff --git a/arch/powerpc/boot/dts/xpedite5370.dts b/arch/powerpc/boot/dts/xpedite5370.dts
index 11dbda10d756..cd0ea2b99362 100644
--- a/arch/powerpc/boot/dts/xpedite5370.dts
+++ b/arch/powerpc/boot/dts/xpedite5370.dts
@@ -545,14 +545,14 @@
 		tlu@2f000 {
 			compatible = "fsl,mpc8572-tlu", "fsl_tlu";
 			reg = <0x2f000 0x1000>;
-			interupts = <61 2 >;
+			interrupts = <61 2>;
 			interrupt-parent = <&mpic>;
 		};
 
 		tlu@15000 {
 			compatible = "fsl,mpc8572-tlu", "fsl_tlu";
 			reg = <0x15000 0x1000>;
-			interupts = <75 2>;
+			interrupts = <75 2>;
 			interrupt-parent = <&mpic>;
 		};
 	};
-- 
cgit 


From d742aa152f27448d39ce65fb829e396d10cd63a9 Mon Sep 17 00:00:00 2001
From: Scott Wood <scottwood@freescale.com>
Date: Thu, 21 Nov 2013 18:26:42 -0600
Subject: powerpc/booke: Only check for hugetlb in flush if vma != NULL

And in flush_hugetlb_page(), don't check whether vma is NULL after
we've already dereferenced it.

This was found by Dan using static analysis as described here:
https://lists.ozlabs.org/pipermail/linuxppc-dev/2013-November/113161.html

We currently get away with this because the callers that currently pass
NULL for vma seem to be 32-bit-only (e.g. highmem, and
CONFIG_DEBUG_PGALLOC in pgtable_32.c)  Hugetlb is currently 64-bit only,
so we never saw a NULL vma here.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 arch/powerpc/mm/hugetlbpage-book3e.c | 3 +--
 arch/powerpc/mm/tlb_nohash.c         | 2 +-
 2 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/mm/hugetlbpage-book3e.c b/arch/powerpc/mm/hugetlbpage-book3e.c
index 3bc700655fc8..74551b5e41e5 100644
--- a/arch/powerpc/mm/hugetlbpage-book3e.c
+++ b/arch/powerpc/mm/hugetlbpage-book3e.c
@@ -117,6 +117,5 @@ void flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr)
 	struct hstate *hstate = hstate_file(vma->vm_file);
 	unsigned long tsize = huge_page_shift(hstate) - 10;
 
-	__flush_tlb_page(vma ? vma->vm_mm : NULL, vmaddr, tsize, 0);
-
+	__flush_tlb_page(vma->vm_mm, vmaddr, tsize, 0);
 }
diff --git a/arch/powerpc/mm/tlb_nohash.c b/arch/powerpc/mm/tlb_nohash.c
index 41cd68dee681..358d74303138 100644
--- a/arch/powerpc/mm/tlb_nohash.c
+++ b/arch/powerpc/mm/tlb_nohash.c
@@ -305,7 +305,7 @@ void __flush_tlb_page(struct mm_struct *mm, unsigned long vmaddr,
 void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr)
 {
 #ifdef CONFIG_HUGETLB_PAGE
-	if (is_vm_hugetlb_page(vma))
+	if (vma && is_vm_hugetlb_page(vma))
 		flush_hugetlb_page(vma, vmaddr);
 #endif
 
-- 
cgit 


From 91151228065354a050fd0d190aefdd662a0580aa Mon Sep 17 00:00:00 2001
From: Oleg Nesterov <oleg@redhat.com>
Date: Thu, 14 Nov 2013 12:56:18 +0100
Subject: workqueue: swap set_cpus_allowed_ptr() and PF_NO_SETAFFINITY

Move the setting of PF_NO_SETAFFINITY up before set_cpus_allowed()
in create_worker(). Otherwise userland can change ->cpus_allowed
in between.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 kernel/workqueue.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 987293d03ebc..f8942429268b 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1736,16 +1736,17 @@ static struct worker *create_worker(struct worker_pool *pool)
 	if (IS_ERR(worker->task))
 		goto fail;
 
+	set_user_nice(worker->task, pool->attrs->nice);
+
+	/* prevent userland from meddling with cpumask of workqueue workers */
+	worker->task->flags |= PF_NO_SETAFFINITY;
+
 	/*
 	 * set_cpus_allowed_ptr() will fail if the cpumask doesn't have any
 	 * online CPUs.  It'll be re-applied when any of the CPUs come up.
 	 */
-	set_user_nice(worker->task, pool->attrs->nice);
 	set_cpus_allowed_ptr(worker->task, pool->attrs->cpumask);
 
-	/* prevent userland from meddling with cpumask of workqueue workers */
-	worker->task->flags |= PF_NO_SETAFFINITY;
-
 	/*
 	 * The caller is responsible for ensuring %POOL_DISASSOCIATED
 	 * remains stable across this function.  See the comments above the
-- 
cgit 


From 8a2b75384444488fc4f2cbb9f0921b6a0794838f Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Thu, 5 Sep 2013 12:30:04 -0400
Subject: workqueue: fix ordered workqueues in NUMA setups

An ordered workqueue implements execution ordering by using single
pool_workqueue with max_active == 1.  On a given pool_workqueue, work
items are processed in FIFO order and limiting max_active to 1
enforces the queued work items to be processed one by one.

Unfortunately, 4c16bd327c ("workqueue: implement NUMA affinity for
unbound workqueues") accidentally broke this guarantee by applying
NUMA affinity to ordered workqueues too.  On NUMA setups, an ordered
workqueue would end up with separate pool_workqueues for different
nodes.  Each pool_workqueue still limits max_active to 1 but multiple
work items may be executed concurrently and out of order depending on
which node they are queued to.

Fix it by using dedicated ordered_wq_attrs[] when creating ordered
workqueues.  The new attrs match the unbound ones except that no_numa
is always set thus forcing all NUMA nodes to share the default
pool_workqueue.

While at it, add sanity check in workqueue creation path which
verifies that an ordered workqueues has only the default
pool_workqueue.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Libin <huawei.libin@huawei.com>
Cc: stable@vger.kernel.org
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
---
 kernel/workqueue.c | 24 ++++++++++++++++++++++--
 1 file changed, 22 insertions(+), 2 deletions(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index f8942429268b..bbb5e9832d85 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -305,6 +305,9 @@ static DEFINE_HASHTABLE(unbound_pool_hash, UNBOUND_POOL_HASH_ORDER);
 /* I: attributes used when instantiating standard unbound pools on demand */
 static struct workqueue_attrs *unbound_std_wq_attrs[NR_STD_WORKER_POOLS];
 
+/* I: attributes used when instantiating ordered pools on demand */
+static struct workqueue_attrs *ordered_wq_attrs[NR_STD_WORKER_POOLS];
+
 struct workqueue_struct *system_wq __read_mostly;
 EXPORT_SYMBOL(system_wq);
 struct workqueue_struct *system_highpri_wq __read_mostly;
@@ -4107,7 +4110,7 @@ out_unlock:
 static int alloc_and_link_pwqs(struct workqueue_struct *wq)
 {
 	bool highpri = wq->flags & WQ_HIGHPRI;
-	int cpu;
+	int cpu, ret;
 
 	if (!(wq->flags & WQ_UNBOUND)) {
 		wq->cpu_pwqs = alloc_percpu(struct pool_workqueue);
@@ -4127,6 +4130,13 @@ static int alloc_and_link_pwqs(struct workqueue_struct *wq)
 			mutex_unlock(&wq->mutex);
 		}
 		return 0;
+	} else if (wq->flags & __WQ_ORDERED) {
+		ret = apply_workqueue_attrs(wq, ordered_wq_attrs[highpri]);
+		/* there should only be single pwq for ordering guarantee */
+		WARN(!ret && (wq->pwqs.next != &wq->dfl_pwq->pwqs_node ||
+			      wq->pwqs.prev != &wq->dfl_pwq->pwqs_node),
+		     "ordering guarantee broken for workqueue %s\n", wq->name);
+		return ret;
 	} else {
 		return apply_workqueue_attrs(wq, unbound_std_wq_attrs[highpri]);
 	}
@@ -5052,13 +5062,23 @@ static int __init init_workqueues(void)
 		}
 	}
 
-	/* create default unbound wq attrs */
+	/* create default unbound and ordered wq attrs */
 	for (i = 0; i < NR_STD_WORKER_POOLS; i++) {
 		struct workqueue_attrs *attrs;
 
 		BUG_ON(!(attrs = alloc_workqueue_attrs(GFP_KERNEL)));
 		attrs->nice = std_nice[i];
 		unbound_std_wq_attrs[i] = attrs;
+
+		/*
+		 * An ordered wq should have only one pwq as ordering is
+		 * guaranteed by max_active which is enforced by pwqs.
+		 * Turn off NUMA so that dfl_pwq is used for all nodes.
+		 */
+		BUG_ON(!(attrs = alloc_workqueue_attrs(GFP_KERNEL)));
+		attrs->nice = std_nice[i];
+		attrs->no_numa = true;
+		ordered_wq_attrs[i] = attrs;
 	}
 
 	system_wq = alloc_workqueue("events", 0, 0);
-- 
cgit 


From 9ef28a73ff6a1598d6f915973c282fe28291f800 Mon Sep 17 00:00:00 2001
From: Li Bin <huawei.libin@huawei.com>
Date: Mon, 9 Sep 2013 13:13:58 +0800
Subject: workqueue: fix comment typo for __queue_work()

It seems the "dying" should be "draining" here.

Signed-off-by: Li Bin <huawei.libin@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 kernel/workqueue.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index bbb5e9832d85..73bdf3c1f9b7 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -1323,7 +1323,7 @@ static void __queue_work(int cpu, struct workqueue_struct *wq,
 
 	debug_work_activate(work);
 
-	/* if dying, only works from the same workqueue are allowed */
+	/* if draining, only works from the same workqueue are allowed */
 	if (unlikely(wq->flags & __WQ_DRAINING) &&
 	    WARN_ON_ONCE(!is_chained_work(wq)))
 		return;
-- 
cgit 


From 4e8b22bd1a37447712f1b1d96352fc53b463c6b3 Mon Sep 17 00:00:00 2001
From: Li Bin <huawei.libin@huawei.com>
Date: Tue, 10 Sep 2013 09:52:35 +0800
Subject: workqueue: fix pool ID allocation leakage and remove BUILD_BUG_ON()
 in init_workqueues

When one work starts execution, the high bits of work's data contain
pool ID. It can represent a maximum of WORK_OFFQ_POOL_NONE. Pool ID
is assigned WORK_OFFQ_POOL_NONE when the work being initialized
indicating that no pool is associated and get_work_pool() uses it to
check the associated pool. So if worker_pool_assign_id() assigns a
ID greater than or equal WORK_OFFQ_POOL_NONE to a pool, it triggers
leakage, and it may break the non-reentrance guarantee.

This patch fix this issue by modifying the worker_pool_assign_id()
function calling idr_alloc() by setting @end param WORK_OFFQ_POOL_NONE.

Furthermore, in the current implementation, the BUILD_BUG_ON() in
init_workqueues makes no sense. The number of worker pools needed
cannot be determined at compile time, because the number of backing
pools for UNBOUND workqueues is dynamic based on the assigned custom
attributes. So remove it.

tj: Minor comment and indentation updates.

Signed-off-by: Li Bin <huawei.libin@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 kernel/workqueue.c | 15 +++++++++------
 1 file changed, 9 insertions(+), 6 deletions(-)

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 73bdf3c1f9b7..c66912be990f 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -521,14 +521,21 @@ static inline void debug_work_activate(struct work_struct *work) { }
 static inline void debug_work_deactivate(struct work_struct *work) { }
 #endif
 
-/* allocate ID and assign it to @pool */
+/**
+ * worker_pool_assign_id - allocate ID and assing it to @pool
+ * @pool: the pool pointer of interest
+ *
+ * Returns 0 if ID in [0, WORK_OFFQ_POOL_NONE) is allocated and assigned
+ * successfully, -errno on failure.
+ */
 static int worker_pool_assign_id(struct worker_pool *pool)
 {
 	int ret;
 
 	lockdep_assert_held(&wq_pool_mutex);
 
-	ret = idr_alloc(&worker_pool_idr, pool, 0, 0, GFP_KERNEL);
+	ret = idr_alloc(&worker_pool_idr, pool, 0, WORK_OFFQ_POOL_NONE,
+			GFP_KERNEL);
 	if (ret >= 0) {
 		pool->id = ret;
 		return 0;
@@ -5020,10 +5027,6 @@ static int __init init_workqueues(void)
 	int std_nice[NR_STD_WORKER_POOLS] = { 0, HIGHPRI_NICE_LEVEL };
 	int i, cpu;
 
-	/* make sure we have enough bits for OFFQ pool ID */
-	BUILD_BUG_ON((1LU << (BITS_PER_LONG - WORK_OFFQ_POOL_SHIFT)) <
-		     WORK_CPU_END * NR_STD_WORKER_POOLS);
-
 	WARN_ON(__alignof__(struct pool_workqueue) < __alignof__(long long));
 
 	pwq_cache = KMEM_CACHE(pool_workqueue, SLAB_PANIC);
-- 
cgit 


From e2fc623e7dda6004cf24ec1470c5a8cc6e1a05e3 Mon Sep 17 00:00:00 2001
From: Yijing Wang <wangyijing@huawei.com>
Date: Wed, 20 Nov 2013 17:28:25 +0800
Subject: ata: fix acpi_bus_get_device() return value check

Since acpi_bus_get_device() returns plain int and not acpi_status,
ACPI_FAILURE() should not be used for checking its return value.  Fix
that.

tj: Dropped unused local variable @status from odd_can_poweroff().
    Reported by kbuild test bot.

Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Aaron Lu <aaron.lu@intel.com>
Cc: linux-ide@vger.kernel.org
Cc: kbuild test robot <fengguang.wu@intel.com>
---
 drivers/ata/libata-zpodd.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/ata/libata-zpodd.c b/drivers/ata/libata-zpodd.c
index 68f9e3293e9c..88949c6d55dd 100644
--- a/drivers/ata/libata-zpodd.c
+++ b/drivers/ata/libata-zpodd.c
@@ -88,15 +88,13 @@ static enum odd_mech_type zpodd_get_mech_type(struct ata_device *dev)
 static bool odd_can_poweroff(struct ata_device *ata_dev)
 {
 	acpi_handle handle;
-	acpi_status status;
 	struct acpi_device *acpi_dev;
 
 	handle = ata_dev_acpi_handle(ata_dev);
 	if (!handle)
 		return false;
 
-	status = acpi_bus_get_device(handle, &acpi_dev);
-	if (ACPI_FAILURE(status))
+	if (acpi_bus_get_device(handle, &acpi_dev))
 		return false;
 
 	return acpi_device_can_poweroff(acpi_dev);
-- 
cgit 


From 6d5278a68a75891db1df5ae1ecf83d288fc58c65 Mon Sep 17 00:00:00 2001
From: Samir Benmendil <samir.benmendil@gmail.com>
Date: Sun, 17 Nov 2013 23:56:17 +0100
Subject: ahci: add Marvell 9230 to the AHCI PCI device list

Tested with a DAWICONTROL DC-624e on 3.10.10

Signed-off-by: Samir Benmendil <samir.benmendil@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Levente Kurusa <levex@linux.com>
Cc: stable@vger.kernel.org
---
 drivers/ata/ahci.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index e2903d03180e..14f1e9506338 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -435,6 +435,8 @@ static const struct pci_device_id ahci_pci_tbl[] = {
 	  .driver_data = board_ahci_yes_fbs },			/* 88se9172 on some Gigabyte */
 	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x91a3),
 	  .driver_data = board_ahci_yes_fbs },
+	{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL_EXT, 0x9230),
+	  .driver_data = board_ahci_yes_fbs },
 
 	/* Promise */
 	{ PCI_VDEVICE(PROMISE, 0x3f20), board_ahci },	/* PDC42819 */
-- 
cgit 


From 12b69a599745fc9e203f61fbb7160b2cc5f479dd Mon Sep 17 00:00:00 2001
From: Arnaud Ebalard <arno@natisbad.org>
Date: Tue, 5 Nov 2013 21:45:48 +0100
Subject: ARM: mvebu: second PCIe unit of Armada XP mv78230 is only x1 capable

Various Marvell datasheets advertise second PCIe unit of mv78230
flavour of Armada XP as x4/quad x1 capable. This second unit is in
fact only x1 capable. This patch fixes current mv78230 .dtsi to
reflect that, i.e. makes 1.0 the second interface (instead of 2.0
at the moment). This was successfully tested on a mv78230-based
ReadyNAS 2120 platform with a x1 device (FL1009 XHCI controller)
connected to this second interface.

Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.10.x
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/armada-xp-mv78230.dtsi | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/arch/arm/boot/dts/armada-xp-mv78230.dtsi b/arch/arm/boot/dts/armada-xp-mv78230.dtsi
index 3f5e6121c730..98335fb34b7a 100644
--- a/arch/arm/boot/dts/armada-xp-mv78230.dtsi
+++ b/arch/arm/boot/dts/armada-xp-mv78230.dtsi
@@ -47,7 +47,7 @@
 		/*
 		 * MV78230 has 2 PCIe units Gen2.0: One unit can be
 		 * configured as x4 or quad x1 lanes. One unit is
-		 * x4/x1.
+		 * x1 only.
 		 */
 		pcie-controller {
 			compatible = "marvell,armada-xp-pcie";
@@ -62,10 +62,10 @@
 
 			ranges =
 			       <0x82000000 0 0x40000 MBUS_ID(0xf0, 0x01) 0x40000 0 0x00002000   /* Port 0.0 registers */
-				0x82000000 0 0x42000 MBUS_ID(0xf0, 0x01) 0x42000 0 0x00002000   /* Port 2.0 registers */
 				0x82000000 0 0x44000 MBUS_ID(0xf0, 0x01) 0x44000 0 0x00002000   /* Port 0.1 registers */
 				0x82000000 0 0x48000 MBUS_ID(0xf0, 0x01) 0x48000 0 0x00002000   /* Port 0.2 registers */
 				0x82000000 0 0x4c000 MBUS_ID(0xf0, 0x01) 0x4c000 0 0x00002000   /* Port 0.3 registers */
+				0x82000000 0 0x80000 MBUS_ID(0xf0, 0x01) 0x80000 0 0x00002000   /* Port 1.0 registers */
 				0x82000000 0x1 0       MBUS_ID(0x04, 0xe8) 0 1 0 /* Port 0.0 MEM */
 				0x81000000 0x1 0       MBUS_ID(0x04, 0xe0) 0 1 0 /* Port 0.0 IO  */
 				0x82000000 0x2 0       MBUS_ID(0x04, 0xd8) 0 1 0 /* Port 0.1 MEM */
@@ -74,8 +74,8 @@
 				0x81000000 0x3 0       MBUS_ID(0x04, 0xb0) 0 1 0 /* Port 0.2 IO  */
 				0x82000000 0x4 0       MBUS_ID(0x04, 0x78) 0 1 0 /* Port 0.3 MEM */
 				0x81000000 0x4 0       MBUS_ID(0x04, 0x70) 0 1 0 /* Port 0.3 IO  */
-				0x82000000 0x9 0       MBUS_ID(0x04, 0xf8) 0 1 0 /* Port 2.0 MEM */
-				0x81000000 0x9 0       MBUS_ID(0x04, 0xf0) 0 1 0 /* Port 2.0 IO  */>;
+				0x82000000 0x5 0       MBUS_ID(0x08, 0xe8) 0 1 0 /* Port 1.0 MEM */
+				0x81000000 0x5 0       MBUS_ID(0x08, 0xe0) 0 1 0 /* Port 1.0 IO  */>;
 
 			pcie@1,0 {
 				device_type = "pci";
@@ -145,20 +145,20 @@
 				status = "disabled";
 			};
 
-			pcie@9,0 {
+			pcie@5,0 {
 				device_type = "pci";
-				assigned-addresses = <0x82000800 0 0x42000 0 0x2000>;
-				reg = <0x4800 0 0 0 0>;
+				assigned-addresses = <0x82000800 0 0x80000 0 0x2000>;
+				reg = <0x2800 0 0 0 0>;
 				#address-cells = <3>;
 				#size-cells = <2>;
 				#interrupt-cells = <1>;
-				ranges = <0x82000000 0 0 0x82000000 0x9 0 1 0
-					  0x81000000 0 0 0x81000000 0x9 0 1 0>;
+				ranges = <0x82000000 0 0 0x82000000 0x5 0 1 0
+					  0x81000000 0 0 0x81000000 0x5 0 1 0>;
 				interrupt-map-mask = <0 0 0 0>;
-				interrupt-map = <0 0 0 0 &mpic 99>;
-				marvell,pcie-port = <2>;
+				interrupt-map = <0 0 0 0 &mpic 62>;
+				marvell,pcie-port = <1>;
 				marvell,pcie-lane = <0>;
-				clocks = <&gateclk 26>;
+				clocks = <&gateclk 9>;
 				status = "disabled";
 			};
 		};
-- 
cgit 


From 2163e61c92d9337e721a0d067d88ae62b52e0d3e Mon Sep 17 00:00:00 2001
From: Arnaud Ebalard <arno@natisbad.org>
Date: Tue, 5 Nov 2013 21:46:02 +0100
Subject: ARM: mvebu: fix second and third PCIe unit of Armada XP mv78260

mv78260 flavour of Marvell Armada XP SoC has 3 PCIe units. The
two first units are both x4 and quad x1 capable. The third unit
is only x4 capable. This patch fixes mv78260 .dtsi to reflect
those capabilities.

Signed-off-by: Arnaud Ebalard <arno@natisbad.org>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.10.x
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/armada-xp-mv78260.dtsi | 109 ++++++++++++++++++++++++-------
 1 file changed, 85 insertions(+), 24 deletions(-)

diff --git a/arch/arm/boot/dts/armada-xp-mv78260.dtsi b/arch/arm/boot/dts/armada-xp-mv78260.dtsi
index 3e9fd1353f89..66609684d41b 100644
--- a/arch/arm/boot/dts/armada-xp-mv78260.dtsi
+++ b/arch/arm/boot/dts/armada-xp-mv78260.dtsi
@@ -48,7 +48,7 @@
 		/*
 		 * MV78260 has 3 PCIe units Gen2.0: Two units can be
 		 * configured as x4 or quad x1 lanes. One unit is
-		 * x4/x1.
+		 * x4 only.
 		 */
 		pcie-controller {
 			compatible = "marvell,armada-xp-pcie";
@@ -68,7 +68,9 @@
 				0x82000000 0 0x48000 MBUS_ID(0xf0, 0x01) 0x48000 0 0x00002000   /* Port 0.2 registers */
 				0x82000000 0 0x4c000 MBUS_ID(0xf0, 0x01) 0x4c000 0 0x00002000   /* Port 0.3 registers */
 				0x82000000 0 0x80000 MBUS_ID(0xf0, 0x01) 0x80000 0 0x00002000   /* Port 1.0 registers */
-				0x82000000 0 0x82000 MBUS_ID(0xf0, 0x01) 0x82000 0 0x00002000   /* Port 3.0 registers */
+				0x82000000 0 0x84000 MBUS_ID(0xf0, 0x01) 0x84000 0 0x00002000   /* Port 1.1 registers */
+				0x82000000 0 0x88000 MBUS_ID(0xf0, 0x01) 0x88000 0 0x00002000   /* Port 1.2 registers */
+				0x82000000 0 0x8c000 MBUS_ID(0xf0, 0x01) 0x8c000 0 0x00002000   /* Port 1.3 registers */
 				0x82000000 0x1 0     MBUS_ID(0x04, 0xe8) 0 1 0 /* Port 0.0 MEM */
 				0x81000000 0x1 0     MBUS_ID(0x04, 0xe0) 0 1 0 /* Port 0.0 IO  */
 				0x82000000 0x2 0     MBUS_ID(0x04, 0xd8) 0 1 0 /* Port 0.1 MEM */
@@ -77,10 +79,18 @@
 				0x81000000 0x3 0     MBUS_ID(0x04, 0xb0) 0 1 0 /* Port 0.2 IO  */
 				0x82000000 0x4 0     MBUS_ID(0x04, 0x78) 0 1 0 /* Port 0.3 MEM */
 				0x81000000 0x4 0     MBUS_ID(0x04, 0x70) 0 1 0 /* Port 0.3 IO  */
-				0x82000000 0x9 0     MBUS_ID(0x08, 0xe8) 0 1 0 /* Port 1.0 MEM */
-				0x81000000 0x9 0     MBUS_ID(0x08, 0xe0) 0 1 0 /* Port 1.0 IO  */
-				0x82000000 0xa 0     MBUS_ID(0x08, 0xf8) 0 1 0 /* Port 3.0 MEM */
-				0x81000000 0xa 0     MBUS_ID(0x08, 0xf0) 0 1 0 /* Port 3.0 IO  */>;
+
+				0x82000000 0x5 0     MBUS_ID(0x08, 0xe8) 0 1 0 /* Port 1.0 MEM */
+				0x81000000 0x5 0     MBUS_ID(0x08, 0xe0) 0 1 0 /* Port 1.0 IO  */
+				0x82000000 0x6 0     MBUS_ID(0x08, 0xd8) 0 1 0 /* Port 1.1 MEM */
+				0x81000000 0x6 0     MBUS_ID(0x08, 0xd0) 0 1 0 /* Port 1.1 IO  */
+				0x82000000 0x7 0     MBUS_ID(0x08, 0xb8) 0 1 0 /* Port 1.2 MEM */
+				0x81000000 0x7 0     MBUS_ID(0x08, 0xb0) 0 1 0 /* Port 1.2 IO  */
+				0x82000000 0x8 0     MBUS_ID(0x08, 0x78) 0 1 0 /* Port 1.3 MEM */
+				0x81000000 0x8 0     MBUS_ID(0x08, 0x70) 0 1 0 /* Port 1.3 IO  */
+
+				0x82000000 0x9 0     MBUS_ID(0x04, 0xf8) 0 1 0 /* Port 2.0 MEM */
+				0x81000000 0x9 0     MBUS_ID(0x04, 0xf0) 0 1 0 /* Port 2.0 IO  */>;
 
 			pcie@1,0 {
 				device_type = "pci";
@@ -106,8 +116,8 @@
 				#address-cells = <3>;
 				#size-cells = <2>;
 				#interrupt-cells = <1>;
-                                ranges = <0x82000000 0 0 0x82000000 0x2 0 1 0
-                                          0x81000000 0 0 0x81000000 0x2 0 1 0>;
+				ranges = <0x82000000 0 0 0x82000000 0x2 0 1 0
+					  0x81000000 0 0 0x81000000 0x2 0 1 0>;
 				interrupt-map-mask = <0 0 0 0>;
 				interrupt-map = <0 0 0 0 &mpic 59>;
 				marvell,pcie-port = <0>;
@@ -150,37 +160,88 @@
 				status = "disabled";
 			};
 
-			pcie@9,0 {
+			pcie@5,0 {
 				device_type = "pci";
-				assigned-addresses = <0x82000800 0 0x42000 0 0x2000>;
-				reg = <0x4800 0 0 0 0>;
+				assigned-addresses = <0x82000800 0 0x80000 0 0x2000>;
+				reg = <0x2800 0 0 0 0>;
 				#address-cells = <3>;
 				#size-cells = <2>;
 				#interrupt-cells = <1>;
-				ranges = <0x82000000 0 0 0x82000000 0x9 0 1 0
-					  0x81000000 0 0 0x81000000 0x9 0 1 0>;
+				ranges = <0x82000000 0 0 0x82000000 0x5 0 1 0
+					  0x81000000 0 0 0x81000000 0x5 0 1 0>;
 				interrupt-map-mask = <0 0 0 0>;
-				interrupt-map = <0 0 0 0 &mpic 99>;
-				marvell,pcie-port = <2>;
+				interrupt-map = <0 0 0 0 &mpic 62>;
+				marvell,pcie-port = <1>;
 				marvell,pcie-lane = <0>;
-				clocks = <&gateclk 26>;
+				clocks = <&gateclk 9>;
 				status = "disabled";
 			};
 
-			pcie@10,0 {
+			pcie@6,0 {
 				device_type = "pci";
-				assigned-addresses = <0x82000800 0 0x82000 0 0x2000>;
-				reg = <0x5000 0 0 0 0>;
+				assigned-addresses = <0x82000800 0 0x84000 0 0x2000>;
+				reg = <0x3000 0 0 0 0>;
 				#address-cells = <3>;
 				#size-cells = <2>;
 				#interrupt-cells = <1>;
-				ranges = <0x82000000 0 0 0x82000000 0xa 0 1 0
-					  0x81000000 0 0 0x81000000 0xa 0 1 0>;
+				ranges = <0x82000000 0 0 0x82000000 0x6 0 1 0
+					  0x81000000 0 0 0x81000000 0x6 0 1 0>;
 				interrupt-map-mask = <0 0 0 0>;
-				interrupt-map = <0 0 0 0 &mpic 103>;
-				marvell,pcie-port = <3>;
+				interrupt-map = <0 0 0 0 &mpic 63>;
+				marvell,pcie-port = <1>;
+				marvell,pcie-lane = <1>;
+				clocks = <&gateclk 10>;
+				status = "disabled";
+			};
+
+			pcie@7,0 {
+				device_type = "pci";
+				assigned-addresses = <0x82000800 0 0x88000 0 0x2000>;
+				reg = <0x3800 0 0 0 0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				#interrupt-cells = <1>;
+				ranges = <0x82000000 0 0 0x82000000 0x7 0 1 0
+					  0x81000000 0 0 0x81000000 0x7 0 1 0>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &mpic 64>;
+				marvell,pcie-port = <1>;
+				marvell,pcie-lane = <2>;
+				clocks = <&gateclk 11>;
+				status = "disabled";
+			};
+
+			pcie@8,0 {
+				device_type = "pci";
+				assigned-addresses = <0x82000800 0 0x8c000 0 0x2000>;
+				reg = <0x4000 0 0 0 0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				#interrupt-cells = <1>;
+				ranges = <0x82000000 0 0 0x82000000 0x8 0 1 0
+					  0x81000000 0 0 0x81000000 0x8 0 1 0>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &mpic 65>;
+				marvell,pcie-port = <1>;
+				marvell,pcie-lane = <3>;
+				clocks = <&gateclk 12>;
+				status = "disabled";
+			};
+
+			pcie@9,0 {
+				device_type = "pci";
+				assigned-addresses = <0x82000800 0 0x42000 0 0x2000>;
+				reg = <0x4800 0 0 0 0>;
+				#address-cells = <3>;
+				#size-cells = <2>;
+				#interrupt-cells = <1>;
+				ranges = <0x82000000 0 0 0x82000000 0x9 0 1 0
+					  0x81000000 0 0 0x81000000 0x9 0 1 0>;
+				interrupt-map-mask = <0 0 0 0>;
+				interrupt-map = <0 0 0 0 &mpic 99>;
+				marvell,pcie-port = <2>;
 				marvell,pcie-lane = <0>;
-				clocks = <&gateclk 27>;
+				clocks = <&gateclk 26>;
 				status = "disabled";
 			};
 		};
-- 
cgit 


From 54d71145a4548330313ca664a4a009772fe8b7dd Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Wed, 20 Nov 2013 11:56:35 +0200
Subject: sysfs: handle duplicate removal attempts in sysfs_remove_group()

Commit bcdde7e221a8 (sysfs: make __sysfs_remove_dir() recursive) changed
the behavior so that directory removals will be done recursively. This
means that the sysfs group might already be removed if its parent directory
has been removed.

The current code outputs warnings similar to following log snippet when it
detects that there is no group for the given kobject:

 WARNING: CPU: 0 PID: 4 at fs/sysfs/group.c:214 sysfs_remove_group+0xc6/0xd0()
 sysfs group ffffffff81c6f1e0 not found for kobject 'host7'
 Modules linked in:
 CPU: 0 PID: 4 Comm: kworker/0:0 Not tainted 3.12.0+ #13
 Hardware name:                  /D33217CK, BIOS GKPPT10H.86A.0042.2013.0422.1439 04/22/2013
 Workqueue: kacpi_hotplug acpi_hotplug_work_fn
  0000000000000009 ffff8801002459b0 ffffffff817daab1 ffff8801002459f8
  ffff8801002459e8 ffffffff810436b8 0000000000000000 ffffffff81c6f1e0
  ffff88006d440358 ffff88006d440188 ffff88006e8b4c28 ffff880100245a48
 Call Trace:
  [<ffffffff817daab1>] dump_stack+0x45/0x56
  [<ffffffff810436b8>] warn_slowpath_common+0x78/0xa0
  [<ffffffff81043727>] warn_slowpath_fmt+0x47/0x50
  [<ffffffff811ad319>] ? sysfs_get_dirent_ns+0x49/0x70
  [<ffffffff811ae526>] sysfs_remove_group+0xc6/0xd0
  [<ffffffff81432f7e>] dpm_sysfs_remove+0x3e/0x50
  [<ffffffff8142a0d0>] device_del+0x40/0x1b0
  [<ffffffff8142a24d>] device_unregister+0xd/0x20
  [<ffffffff8144131a>] scsi_remove_host+0xba/0x110
  [<ffffffff8145f526>] ata_host_detach+0xc6/0x100
  [<ffffffff8145f578>] ata_pci_remove_one+0x18/0x20
  [<ffffffff812e8f48>] pci_device_remove+0x28/0x60
  [<ffffffff8142d854>] __device_release_driver+0x64/0xd0
  [<ffffffff8142d8de>] device_release_driver+0x1e/0x30
  [<ffffffff8142d257>] bus_remove_device+0xf7/0x140
  [<ffffffff8142a1b1>] device_del+0x121/0x1b0
  [<ffffffff812e43d4>] pci_stop_bus_device+0x94/0xa0
  [<ffffffff812e437b>] pci_stop_bus_device+0x3b/0xa0
  [<ffffffff812e437b>] pci_stop_bus_device+0x3b/0xa0
  [<ffffffff812e44dd>] pci_stop_and_remove_bus_device+0xd/0x20
  [<ffffffff812fc743>] trim_stale_devices+0x73/0xe0
  [<ffffffff812fc78b>] trim_stale_devices+0xbb/0xe0
  [<ffffffff812fc78b>] trim_stale_devices+0xbb/0xe0
  [<ffffffff812fcb6e>] acpiphp_check_bridge+0x7e/0xd0
  [<ffffffff812fd90d>] hotplug_event+0xcd/0x160
  [<ffffffff812fd9c5>] hotplug_event_work+0x25/0x60
  [<ffffffff81316749>] acpi_hotplug_work_fn+0x17/0x22
  [<ffffffff8105cf3a>] process_one_work+0x17a/0x430
  [<ffffffff8105db29>] worker_thread+0x119/0x390
  [<ffffffff8105da10>] ? manage_workers.isra.25+0x2a0/0x2a0
  [<ffffffff81063a5d>] kthread+0xcd/0xf0
  [<ffffffff81063990>] ? kthread_create_on_node+0x180/0x180
  [<ffffffff817eb33c>] ret_from_fork+0x7c/0xb0
  [<ffffffff81063990>] ? kthread_create_on_node+0x180/0x180

On this particular machine I see ~16 of these message during Thunderbolt
hot-unplug.

Fix this in similar way that was done for sysfs_remove_one() by checking
if the parent directory has already been removed and bailing out early.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/group.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c
index 1898a10e38ce..3796afdff40c 100644
--- a/fs/sysfs/group.c
+++ b/fs/sysfs/group.c
@@ -206,6 +206,15 @@ void sysfs_remove_group(struct kobject *kobj,
 	struct sysfs_dirent *dir_sd = kobj->sd;
 	struct sysfs_dirent *sd;
 
+	/*
+	 * Sysfs directories are now removed recursively by
+	 * sysfs_remove_dir(). This means that the function can be called
+	 * for a group whose sysfs entry is already removed. In that case
+	 * all its groups are guaranteed to be already removed.
+	 */
+	if (dir_sd->s_flags & SYSFS_FLAG_REMOVED)
+		return;
+
 	if (grp->name) {
 		sd = sysfs_get_dirent(dir_sd, grp->name);
 		if (!sd) {
-- 
cgit 


From 027a485d12e089314360d459b8d847104dd28702 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Sun, 17 Nov 2013 11:17:36 +0900
Subject: sysfs: use a separate locking class for open files depending on mmap

The following two commits implemented mmap support in the regular file
path and merged bin file support into the regular path.

 73d9714627ad ("sysfs: copy bin mmap support from fs/sysfs/bin.c to fs/sysfs/file.c")
 3124eb1679b2 ("sysfs: merge regular and bin file handling")

After the merge, the following commands trigger a spurious lockdep
warning.  "test-mmap-read" simply mmaps the file and dumps the
content.

  $ cat /sys/block/sda/trace/act_mask
  $ test-mmap-read /sys/devices/pci0000\:00/0000\:00\:03.0/resource0 4096

  ======================================================
  [ INFO: possible circular locking dependency detected ]
  3.12.0-work+ #378 Not tainted
  -------------------------------------------------------
  test-mmap-read/567 is trying to acquire lock:
   (&of->mutex){+.+.+.}, at: [<ffffffff8120a8df>] sysfs_bin_mmap+0x4f/0x120

  but task is already holding lock:
   (&mm->mmap_sem){++++++}, at: [<ffffffff8114b399>] vm_mmap_pgoff+0x49/0xa0

  which lock already depends on the new lock.

  the existing dependency chain (in reverse order) is:

  -> #3 (&mm->mmap_sem){++++++}:
  ...
  -> #2 (sr_mutex){+.+.+.}:
  ...
  -> #1 (&bdev->bd_mutex){+.+.+.}:
  ...
  -> #0 (&of->mutex){+.+.+.}:
  ...

  other info that might help us debug this:

  Chain exists of:
   &of->mutex --> sr_mutex --> &mm->mmap_sem

   Possible unsafe locking scenario:

	 CPU0                    CPU1
	 ----                    ----
    lock(&mm->mmap_sem);
				 lock(sr_mutex);
				 lock(&mm->mmap_sem);
    lock(&of->mutex);

   *** DEADLOCK ***

  1 lock held by test-mmap-read/567:
   #0:  (&mm->mmap_sem){++++++}, at: [<ffffffff8114b399>] vm_mmap_pgoff+0x49/0xa0

  stack backtrace:
  CPU: 3 PID: 567 Comm: test-mmap-read Not tainted 3.12.0-work+ #378
  Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
   ffffffff81ed41a0 ffff880009441bc8 ffffffff81611ad2 ffffffff81eccb80
   ffff880009441c08 ffffffff8160f215 ffff880009441c60 ffff880009c75208
   0000000000000000 ffff880009c751e0 ffff880009c75208 ffff880009c74ac0
  Call Trace:
   [<ffffffff81611ad2>] dump_stack+0x4e/0x7a
   [<ffffffff8160f215>] print_circular_bug+0x2b0/0x2bf
   [<ffffffff8109ca0a>] __lock_acquire+0x1a3a/0x1e60
   [<ffffffff8109d6ba>] lock_acquire+0x9a/0x1d0
   [<ffffffff81615547>] mutex_lock_nested+0x67/0x3f0
   [<ffffffff8120a8df>] sysfs_bin_mmap+0x4f/0x120
   [<ffffffff8115d363>] mmap_region+0x3b3/0x5b0
   [<ffffffff8115d8ae>] do_mmap_pgoff+0x34e/0x3d0
   [<ffffffff8114b3ba>] vm_mmap_pgoff+0x6a/0xa0
   [<ffffffff8115be3e>] SyS_mmap_pgoff+0xbe/0x250
   [<ffffffff81008282>] SyS_mmap+0x22/0x30
   [<ffffffff8161a4d2>] system_call_fastpath+0x16/0x1b

This happens because one file nests sr_mutex, which nests mm->mmap_sem
under it, under of->mutex while mmap implementation naturally nests
of->mutex under mm->mmap_sem.  The warning is false positive as
of->mutex is per open-file and the two paths belong to two different
files.  This warning didn't trigger before regular and bin file
supports were merged because only bin file supported mmap and the
other side of locking happened only on regular files which used
equivalent but separate locking.

It'd be best if we give separate locking classes per file but we can't
easily do that.  Let's differentiate on ->mmap() for now.  Later we'll
add explicit file operations struct and can add per-ops lockdep key
there.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/file.c | 22 ++++++++++++++++++++--
 1 file changed, 20 insertions(+), 2 deletions(-)

diff --git a/fs/sysfs/file.c b/fs/sysfs/file.c
index 79b5da2acbe1..b94f93685093 100644
--- a/fs/sysfs/file.c
+++ b/fs/sysfs/file.c
@@ -609,7 +609,7 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
 	struct sysfs_dirent *attr_sd = file->f_path.dentry->d_fsdata;
 	struct kobject *kobj = attr_sd->s_parent->s_dir.kobj;
 	struct sysfs_open_file *of;
-	bool has_read, has_write;
+	bool has_read, has_write, has_mmap;
 	int error = -EACCES;
 
 	/* need attr_sd for attr and ops, its parent for kobj */
@@ -621,6 +621,7 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
 
 		has_read = battr->read || battr->mmap;
 		has_write = battr->write || battr->mmap;
+		has_mmap = battr->mmap;
 	} else {
 		const struct sysfs_ops *ops = sysfs_file_ops(attr_sd);
 
@@ -632,6 +633,7 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
 
 		has_read = ops->show;
 		has_write = ops->store;
+		has_mmap = false;
 	}
 
 	/* check perms and supported operations */
@@ -649,7 +651,23 @@ static int sysfs_open_file(struct inode *inode, struct file *file)
 	if (!of)
 		goto err_out;
 
-	mutex_init(&of->mutex);
+	/*
+	 * The following is done to give a different lockdep key to
+	 * @of->mutex for files which implement mmap.  This is a rather
+	 * crude way to avoid false positive lockdep warning around
+	 * mm->mmap_sem - mmap nests @of->mutex under mm->mmap_sem and
+	 * reading /sys/block/sda/trace/act_mask grabs sr_mutex, under
+	 * which mm->mmap_sem nests, while holding @of->mutex.  As each
+	 * open file has a separate mutex, it's okay as long as those don't
+	 * happen on the same file.  At this point, we can't easily give
+	 * each file a separate locking class.  Let's differentiate on
+	 * whether the file has mmap or not for now.
+	 */
+	if (has_mmap)
+		mutex_init(&of->mutex);
+	else
+		mutex_init(&of->mutex);
+
 	of->sd = attr_sd;
 	of->file = file;
 
-- 
cgit 


From a096b09aeec6ff99edfdfd8cee24d6f25377d585 Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zheng.z.yan@intel.com>
Date: Sun, 22 Sep 2013 10:15:58 +0800
Subject: ceph: queue cap release in __ceph_remove_cap()

call __queue_cap_release() in __ceph_remove_cap(), this avoids
acquiring s_cap_lock twice.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Sage Weil <sage@inktank.com>
---
 fs/ceph/caps.c       | 21 +++++++++++----------
 fs/ceph/mds_client.c |  6 ++----
 fs/ceph/super.h      |  8 +-------
 3 files changed, 14 insertions(+), 21 deletions(-)

diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index 13976c33332e..d2d6e40e7345 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -897,7 +897,7 @@ static int __ceph_is_any_caps(struct ceph_inode_info *ci)
  * caller should hold i_ceph_lock.
  * caller will not hold session s_mutex if called from destroy_inode.
  */
-void __ceph_remove_cap(struct ceph_cap *cap)
+void __ceph_remove_cap(struct ceph_cap *cap, bool queue_release)
 {
 	struct ceph_mds_session *session = cap->session;
 	struct ceph_inode_info *ci = cap->ci;
@@ -909,6 +909,10 @@ void __ceph_remove_cap(struct ceph_cap *cap)
 
 	/* remove from session list */
 	spin_lock(&session->s_cap_lock);
+	if (queue_release)
+		__queue_cap_release(session, ci->i_vino.ino, cap->cap_id,
+				    cap->mseq, cap->issue_seq);
+
 	if (session->s_cap_iterator == cap) {
 		/* not yet, we are iterating over this very cap */
 		dout("__ceph_remove_cap  delaying %p removal from session %p\n",
@@ -1023,7 +1027,6 @@ void __queue_cap_release(struct ceph_mds_session *session,
 	struct ceph_mds_cap_release *head;
 	struct ceph_mds_cap_item *item;
 
-	spin_lock(&session->s_cap_lock);
 	BUG_ON(!session->s_num_cap_releases);
 	msg = list_first_entry(&session->s_cap_releases,
 			       struct ceph_msg, list_head);
@@ -1052,7 +1055,6 @@ void __queue_cap_release(struct ceph_mds_session *session,
 		     (int)CEPH_CAPS_PER_RELEASE,
 		     (int)msg->front.iov_len);
 	}
-	spin_unlock(&session->s_cap_lock);
 }
 
 /*
@@ -1067,12 +1069,8 @@ void ceph_queue_caps_release(struct inode *inode)
 	p = rb_first(&ci->i_caps);
 	while (p) {
 		struct ceph_cap *cap = rb_entry(p, struct ceph_cap, ci_node);
-		struct ceph_mds_session *session = cap->session;
-
-		__queue_cap_release(session, ceph_ino(inode), cap->cap_id,
-				    cap->mseq, cap->issue_seq);
 		p = rb_next(p);
-		__ceph_remove_cap(cap);
+		__ceph_remove_cap(cap, true);
 	}
 }
 
@@ -2791,7 +2789,7 @@ static void handle_cap_export(struct inode *inode, struct ceph_mds_caps *ex,
 			}
 			spin_unlock(&mdsc->cap_dirty_lock);
 		}
-		__ceph_remove_cap(cap);
+		__ceph_remove_cap(cap, false);
 	}
 	/* else, we already released it */
 
@@ -2931,9 +2929,12 @@ void ceph_handle_caps(struct ceph_mds_session *session,
 	if (!inode) {
 		dout(" i don't have ino %llx\n", vino.ino);
 
-		if (op == CEPH_CAP_OP_IMPORT)
+		if (op == CEPH_CAP_OP_IMPORT) {
+			spin_lock(&session->s_cap_lock);
 			__queue_cap_release(session, vino.ino, cap_id,
 					    mseq, seq);
+			spin_unlock(&session->s_cap_lock);
+		}
 		goto flush_cap_releases;
 	}
 
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index f51ab2627b41..8f8f5c043c37 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -986,7 +986,7 @@ static int remove_session_caps_cb(struct inode *inode, struct ceph_cap *cap,
 	dout("removing cap %p, ci is %p, inode is %p\n",
 	     cap, ci, &ci->vfs_inode);
 	spin_lock(&ci->i_ceph_lock);
-	__ceph_remove_cap(cap);
+	__ceph_remove_cap(cap, false);
 	if (!__ceph_is_any_real_caps(ci)) {
 		struct ceph_mds_client *mdsc =
 			ceph_sb_to_client(inode->i_sb)->mdsc;
@@ -1231,9 +1231,7 @@ static int trim_caps_cb(struct inode *inode, struct ceph_cap *cap, void *arg)
 	session->s_trim_caps--;
 	if (oissued) {
 		/* we aren't the only cap.. just remove us */
-		__queue_cap_release(session, ceph_ino(inode), cap->cap_id,
-				    cap->mseq, cap->issue_seq);
-		__ceph_remove_cap(cap);
+		__ceph_remove_cap(cap, true);
 	} else {
 		/* try to drop referring dentries */
 		spin_unlock(&ci->i_ceph_lock);
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 6014b0a3c405..ef4ac38bb614 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -741,13 +741,7 @@ extern int ceph_add_cap(struct inode *inode,
 			int fmode, unsigned issued, unsigned wanted,
 			unsigned cap, unsigned seq, u64 realmino, int flags,
 			struct ceph_cap_reservation *caps_reservation);
-extern void __ceph_remove_cap(struct ceph_cap *cap);
-static inline void ceph_remove_cap(struct ceph_cap *cap)
-{
-	spin_lock(&cap->ci->i_ceph_lock);
-	__ceph_remove_cap(cap);
-	spin_unlock(&cap->ci->i_ceph_lock);
-}
+extern void __ceph_remove_cap(struct ceph_cap *cap, bool queue_release);
 extern void ceph_put_cap(struct ceph_mds_client *mdsc,
 			 struct ceph_cap *cap);
 
-- 
cgit 


From 44c99757fae80e9db058e1f1d7419cf6472e9af1 Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zheng.z.yan@intel.com>
Date: Sun, 22 Sep 2013 10:28:10 +0800
Subject: ceph: set caps count after composing cap reconnect message

It's possible that some caps get released while composing the cap
reconnect message.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Sage Weil <sage@inktank.com>
---
 fs/ceph/mds_client.c | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 8f8f5c043c37..4a93d69abc8b 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -43,6 +43,7 @@
  */
 
 struct ceph_reconnect_state {
+	int nr_caps;
 	struct ceph_pagelist *pagelist;
 	bool flock;
 };
@@ -2549,6 +2550,8 @@ encode_again:
 	} else {
 		err = ceph_pagelist_append(pagelist, &rec, reclen);
 	}
+
+	recon_state->nr_caps++;
 out_free:
 	kfree(path);
 out_dput:
@@ -2576,6 +2579,7 @@ static void send_mds_reconnect(struct ceph_mds_client *mdsc,
 	struct rb_node *p;
 	int mds = session->s_mds;
 	int err = -ENOMEM;
+	int s_nr_caps;
 	struct ceph_pagelist *pagelist;
 	struct ceph_reconnect_state recon_state;
 
@@ -2611,10 +2615,12 @@ static void send_mds_reconnect(struct ceph_mds_client *mdsc,
 	discard_cap_releases(mdsc, session);
 
 	/* traverse this session's caps */
-	err = ceph_pagelist_encode_32(pagelist, session->s_nr_caps);
+	s_nr_caps = session->s_nr_caps;
+	err = ceph_pagelist_encode_32(pagelist, s_nr_caps);
 	if (err)
 		goto fail;
 
+	recon_state.nr_caps = 0;
 	recon_state.pagelist = pagelist;
 	recon_state.flock = session->s_con.peer_features & CEPH_FEATURE_FLOCK;
 	err = iterate_session_caps(session, encode_caps_cb, &recon_state);
@@ -2643,11 +2649,18 @@ static void send_mds_reconnect(struct ceph_mds_client *mdsc,
 
 	if (recon_state.flock)
 		reply->hdr.version = cpu_to_le16(2);
-	if (pagelist->length) {
-		/* set up outbound data if we have any */
-		reply->hdr.data_len = cpu_to_le32(pagelist->length);
-		ceph_msg_data_add_pagelist(reply, pagelist);
+
+	/* raced with cap release? */
+	if (s_nr_caps != recon_state.nr_caps) {
+		struct page *page = list_first_entry(&pagelist->head,
+						     struct page, lru);
+		__le32 *addr = kmap_atomic(page);
+		*addr = cpu_to_le32(recon_state.nr_caps);
+		kunmap_atomic(addr);
 	}
+
+	reply->hdr.data_len = cpu_to_le32(pagelist->length);
+	ceph_msg_data_add_pagelist(reply, pagelist);
 	ceph_con_send(&session->s_con, reply);
 
 	mutex_unlock(&session->s_mutex);
-- 
cgit 


From 99a9c273b94a087f8feaec6c5ffbe3205a2dbe51 Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zheng.z.yan@intel.com>
Date: Sun, 22 Sep 2013 11:08:14 +0800
Subject: ceph: handle race between cap reconnect and cap release

When a cap get released while composing the cap reconnect message.
We should skip queuing the release message if the cap hasn't been
added to the cap reconnect message.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Sage Weil <sage@inktank.com>
---
 fs/ceph/caps.c       |  8 +++++++-
 fs/ceph/mds_client.c | 21 ++++++++++++++++++---
 fs/ceph/mds_client.h |  1 +
 3 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index d2d6e40e7345..3c0a4bd74996 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -909,7 +909,13 @@ void __ceph_remove_cap(struct ceph_cap *cap, bool queue_release)
 
 	/* remove from session list */
 	spin_lock(&session->s_cap_lock);
-	if (queue_release)
+	/*
+	 * s_cap_reconnect is protected by s_cap_lock. no one changes
+	 * s_cap_gen while session is in the reconnect state.
+	 */
+	if (queue_release &&
+	    (!session->s_cap_reconnect ||
+	     cap->cap_gen == session->s_cap_gen))
 		__queue_cap_release(session, ci->i_vino.ino, cap->cap_id,
 				    cap->mseq, cap->issue_seq);
 
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 4a93d69abc8b..6d953ab0ac06 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -444,6 +444,7 @@ static struct ceph_mds_session *register_session(struct ceph_mds_client *mdsc,
 	INIT_LIST_HEAD(&s->s_waiting);
 	INIT_LIST_HEAD(&s->s_unsafe);
 	s->s_num_cap_releases = 0;
+	s->s_cap_reconnect = 0;
 	s->s_cap_iterator = NULL;
 	INIT_LIST_HEAD(&s->s_cap_releases);
 	INIT_LIST_HEAD(&s->s_cap_releases_done);
@@ -1415,7 +1416,6 @@ static void discard_cap_releases(struct ceph_mds_client *mdsc,
 	unsigned num;
 
 	dout("discard_cap_releases mds%d\n", session->s_mds);
-	spin_lock(&session->s_cap_lock);
 
 	/* zero out the in-progress message */
 	msg = list_first_entry(&session->s_cap_releases,
@@ -1442,8 +1442,6 @@ static void discard_cap_releases(struct ceph_mds_client *mdsc,
 		msg->front.iov_len = sizeof(*head);
 		list_add(&msg->list_head, &session->s_cap_releases);
 	}
-
-	spin_unlock(&session->s_cap_lock);
 }
 
 /*
@@ -2488,6 +2486,7 @@ static int encode_caps_cb(struct inode *inode, struct ceph_cap *cap,
 	cap->seq = 0;        /* reset cap seq */
 	cap->issue_seq = 0;  /* and issue_seq */
 	cap->mseq = 0;       /* and migrate_seq */
+	cap->cap_gen = cap->session->s_cap_gen;
 
 	if (recon_state->flock) {
 		rec.v2.cap_id = cpu_to_le64(cap->cap_id);
@@ -2611,8 +2610,20 @@ static void send_mds_reconnect(struct ceph_mds_client *mdsc,
 	dout("session %p state %s\n", session,
 	     session_state_name(session->s_state));
 
+	spin_lock(&session->s_gen_ttl_lock);
+	session->s_cap_gen++;
+	spin_unlock(&session->s_gen_ttl_lock);
+
+	spin_lock(&session->s_cap_lock);
+	/*
+	 * notify __ceph_remove_cap() that we are composing cap reconnect.
+	 * If a cap get released before being added to the cap reconnect,
+	 * __ceph_remove_cap() should skip queuing cap release.
+	 */
+	session->s_cap_reconnect = 1;
 	/* drop old cap expires; we're about to reestablish that state */
 	discard_cap_releases(mdsc, session);
+	spin_unlock(&session->s_cap_lock);
 
 	/* traverse this session's caps */
 	s_nr_caps = session->s_nr_caps;
@@ -2627,6 +2638,10 @@ static void send_mds_reconnect(struct ceph_mds_client *mdsc,
 	if (err < 0)
 		goto fail;
 
+	spin_lock(&session->s_cap_lock);
+	session->s_cap_reconnect = 0;
+	spin_unlock(&session->s_cap_lock);
+
 	/*
 	 * snaprealms.  we provide mds with the ino, seq (version), and
 	 * parent for all of our realms.  If the mds has any newer info,
diff --git a/fs/ceph/mds_client.h b/fs/ceph/mds_client.h
index c2a19fbbe517..4c053d099ae4 100644
--- a/fs/ceph/mds_client.h
+++ b/fs/ceph/mds_client.h
@@ -132,6 +132,7 @@ struct ceph_mds_session {
 	struct list_head  s_caps;     /* all caps issued by this session */
 	int               s_nr_caps, s_trim_caps;
 	int               s_num_cap_releases;
+	int		  s_cap_reconnect;
 	struct list_head  s_cap_releases; /* waiting cap_release messages */
 	struct list_head  s_cap_releases_done; /* ready to send */
 	struct ceph_cap  *s_cap_iterator;
-- 
cgit 


From eb1b8af33c2e42a9a57fc0a7588f4a7b255d2e79 Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zheng.z.yan@intel.com>
Date: Thu, 26 Sep 2013 14:25:36 +0800
Subject: ceph: cleanup aborted requests when re-sending requests.

Aborted requests usually get cleared when the reply is received.
If MDS crashes, no reply will be received. So we need to cleanup
aborted requests when re-sending requests.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Reviewed-by: Greg Farnum <greg@inktank.com>
Signed-off-by: Sage Weil <sage@inktank.com>
---
 fs/ceph/mds_client.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 6d953ab0ac06..8ef79266d064 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -1872,8 +1872,11 @@ static int __do_request(struct ceph_mds_client *mdsc,
 	int mds = -1;
 	int err = -EAGAIN;
 
-	if (req->r_err || req->r_got_result)
+	if (req->r_err || req->r_got_result) {
+		if (req->r_aborted)
+			__unregister_request(mdsc, req);
 		goto out;
+	}
 
 	if (req->r_timeout &&
 	    time_after_eq(jiffies, req->r_started + req->r_timeout)) {
-- 
cgit 


From fc55d2c9448b34218ca58733a6f51fbede09575b Mon Sep 17 00:00:00 2001
From: "Yan, Zheng" <zheng.z.yan@intel.com>
Date: Thu, 31 Oct 2013 09:10:47 +0800
Subject: ceph: wake up 'safe' waiters when unregistering request

We also need to wake up 'safe' waiters if error occurs or request
aborted. Otherwise sync(2)/fsync(2) may hang forever.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>
Signed-off-by: Sage Weil <sage@inktank.com>
---
 fs/ceph/mds_client.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 8ef79266d064..d90861f45210 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -644,6 +644,8 @@ static void __unregister_request(struct ceph_mds_client *mdsc,
 		req->r_unsafe_dir = NULL;
 	}
 
+	complete_all(&req->r_safe_completion);
+
 	ceph_mdsc_put_request(req);
 }
 
@@ -2186,7 +2188,6 @@ static void handle_reply(struct ceph_mds_session *session, struct ceph_msg *msg)
 	if (head->safe) {
 		req->r_got_safe = true;
 		__unregister_request(mdsc, req);
-		complete_all(&req->r_safe_completion);
 
 		if (req->r_got_unsafe) {
 			/*
-- 
cgit 


From ff638b7df5a9264024a6448bdfde2b2bf5d1994a Mon Sep 17 00:00:00 2001
From: Li Wang <liwang@ubuntukylin.com>
Date: Sat, 9 Nov 2013 10:26:06 +0800
Subject: ceph: allocate non-zero page to fscache in readpage()

ceph_osdc_readpages() returns number of bytes read, currently,
the code only allocate full-zero page into fscache, this patch
fixes this.

Signed-off-by: Li Wang <liwang@ubuntukylin.com>
Reviewed-by: Milosz Tanski <milosz@adfin.com>
Reviewed-by: Sage Weil <sage@inktank.com>
---
 fs/ceph/addr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c
index 6df8bd481425..1e561c059539 100644
--- a/fs/ceph/addr.c
+++ b/fs/ceph/addr.c
@@ -216,7 +216,7 @@ static int readpage_nounlock(struct file *filp, struct page *page)
 	}
 	SetPageUptodate(page);
 
-	if (err == 0)
+	if (err >= 0)
 		ceph_readpage_to_fscache(inode, page);
 
 out:
-- 
cgit 


From d6c416148545bd99d3cc05e672460168245cc156 Mon Sep 17 00:00:00 2001
From: Chang Xiangzhong <changxiangzhong@gmail.com>
Date: Thu, 21 Nov 2013 22:56:28 +0100
Subject: net: sctp: find the correct highest_new_tsn in sack

Function sctp_check_transmitted(transport t, ...) would iterate all of
transport->transmitted queue and looking for the highest __newly__ acked tsn.
The original algorithm would depend on the order of the assoc->transport_list
(in function sctp_outq_sack line 1215 - 1226). The result might not be the
expected due to the order of the tranport_list.

Solution: checking if the exising is smaller than the new one before assigning

Signed-off-by: Chang Xiangzhong <changxiangzhong@gmail.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sctp/outqueue.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index 94df75877869..abb6db008df1 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -1391,7 +1391,8 @@ static void sctp_check_transmitted(struct sctp_outq *q,
 			 */
 			if (!tchunk->tsn_gap_acked) {
 				tchunk->tsn_gap_acked = 1;
-				*highest_new_tsn_in_sack = tsn;
+				if (TSN_lt(*highest_new_tsn_in_sack, tsn))
+					*highest_new_tsn_in_sack = tsn;
 				bytes_acked += sctp_data_size(tchunk);
 				if (!tchunk->transport)
 					migrate_bytes += sctp_data_size(tchunk);
-- 
cgit 


From cc5c00bbb44c5d68b883aa5cb9d01514a2525d94 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Fri, 22 Nov 2013 10:31:29 +0800
Subject: gro: Only verify TCP checksums for candidates

In some cases we may receive IP packets that are longer than
their stated lengths.  Such packets are never merged in GRO.
However, we may end up computing their checksums incorrectly
and end up allowing packets with a bogus checksum enter our
stack with the checksum status set as verified.

Since such packets are rare and not performance-critical, this
patch simply skips the checksum verification for them.

Reported-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Alexander Duyck <alexander.h.duyck@intel.com>

Thanks,
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/tcp_offload.c   | 5 +++++
 net/ipv6/tcpv6_offload.c | 5 +++++
 2 files changed, 10 insertions(+)

diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c
index a2b68a108eae..55aeec930140 100644
--- a/net/ipv4/tcp_offload.c
+++ b/net/ipv4/tcp_offload.c
@@ -276,6 +276,10 @@ static struct sk_buff **tcp4_gro_receive(struct sk_buff **head, struct sk_buff *
 	__wsum wsum;
 	__sum16 sum;
 
+	/* Don't bother verifying checksum if we're going to flush anyway. */
+	if (NAPI_GRO_CB(skb)->flush)
+		goto skip_csum;
+
 	switch (skb->ip_summed) {
 	case CHECKSUM_COMPLETE:
 		if (!tcp_v4_check(skb_gro_len(skb), iph->saddr, iph->daddr,
@@ -301,6 +305,7 @@ flush:
 		break;
 	}
 
+skip_csum:
 	return tcp_gro_receive(head, skb);
 }
 
diff --git a/net/ipv6/tcpv6_offload.c b/net/ipv6/tcpv6_offload.c
index c1097c798900..71923d14127a 100644
--- a/net/ipv6/tcpv6_offload.c
+++ b/net/ipv6/tcpv6_offload.c
@@ -39,6 +39,10 @@ static struct sk_buff **tcp6_gro_receive(struct sk_buff **head,
 	__wsum wsum;
 	__sum16 sum;
 
+	/* Don't bother verifying checksum if we're going to flush anyway. */
+	if (NAPI_GRO_CB(skb)->flush)
+		goto skip_csum;
+
 	switch (skb->ip_summed) {
 	case CHECKSUM_COMPLETE:
 		if (!tcp_v6_check(skb_gro_len(skb), &iph->saddr, &iph->daddr,
@@ -65,6 +69,7 @@ flush:
 		break;
 	}
 
+skip_csum:
 	return tcp_gro_receive(head, skb);
 }
 
-- 
cgit 


From b8ee93ba80b5a0b6c3c06b65c34dd1276f16c047 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Fri, 22 Nov 2013 10:32:11 +0800
Subject: gro: Clean up tcpX_gro_receive checksum verification

This patch simplifies the checksum verification in tcpX_gro_receive
by reusing the CHECKSUM_COMPLETE code for CHECKSUM_NONE.  All it
does for CHECKSUM_NONE is compute the partial checksum and then
treat it as if it came from the hardware (CHECKSUM_COMPLETE).

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Cheers,
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/tcp_offload.c   | 26 ++++++++++----------------
 net/ipv6/tcpv6_offload.c | 27 ++++++++++-----------------
 2 files changed, 20 insertions(+), 33 deletions(-)

diff --git a/net/ipv4/tcp_offload.c b/net/ipv4/tcp_offload.c
index 55aeec930140..05606353c7e7 100644
--- a/net/ipv4/tcp_offload.c
+++ b/net/ipv4/tcp_offload.c
@@ -274,35 +274,29 @@ static struct sk_buff **tcp4_gro_receive(struct sk_buff **head, struct sk_buff *
 {
 	const struct iphdr *iph = skb_gro_network_header(skb);
 	__wsum wsum;
-	__sum16 sum;
 
 	/* Don't bother verifying checksum if we're going to flush anyway. */
 	if (NAPI_GRO_CB(skb)->flush)
 		goto skip_csum;
 
+	wsum = skb->csum;
+
 	switch (skb->ip_summed) {
+	case CHECKSUM_NONE:
+		wsum = skb_checksum(skb, skb_gro_offset(skb), skb_gro_len(skb),
+				    0);
+
+		/* fall through */
+
 	case CHECKSUM_COMPLETE:
 		if (!tcp_v4_check(skb_gro_len(skb), iph->saddr, iph->daddr,
-				  skb->csum)) {
+				  wsum)) {
 			skb->ip_summed = CHECKSUM_UNNECESSARY;
 			break;
 		}
-flush:
+
 		NAPI_GRO_CB(skb)->flush = 1;
 		return NULL;
-
-	case CHECKSUM_NONE:
-		wsum = csum_tcpudp_nofold(iph->saddr, iph->daddr,
-					  skb_gro_len(skb), IPPROTO_TCP, 0);
-		sum = csum_fold(skb_checksum(skb,
-					     skb_gro_offset(skb),
-					     skb_gro_len(skb),
-					     wsum));
-		if (sum)
-			goto flush;
-
-		skb->ip_summed = CHECKSUM_UNNECESSARY;
-		break;
 	}
 
 skip_csum:
diff --git a/net/ipv6/tcpv6_offload.c b/net/ipv6/tcpv6_offload.c
index 71923d14127a..6d18157dc32c 100644
--- a/net/ipv6/tcpv6_offload.c
+++ b/net/ipv6/tcpv6_offload.c
@@ -37,36 +37,29 @@ static struct sk_buff **tcp6_gro_receive(struct sk_buff **head,
 {
 	const struct ipv6hdr *iph = skb_gro_network_header(skb);
 	__wsum wsum;
-	__sum16 sum;
 
 	/* Don't bother verifying checksum if we're going to flush anyway. */
 	if (NAPI_GRO_CB(skb)->flush)
 		goto skip_csum;
 
+	wsum = skb->csum;
+
 	switch (skb->ip_summed) {
+	case CHECKSUM_NONE:
+		wsum = skb_checksum(skb, skb_gro_offset(skb), skb_gro_len(skb),
+				    wsum);
+
+		/* fall through */
+
 	case CHECKSUM_COMPLETE:
 		if (!tcp_v6_check(skb_gro_len(skb), &iph->saddr, &iph->daddr,
-				  skb->csum)) {
+				  wsum)) {
 			skb->ip_summed = CHECKSUM_UNNECESSARY;
 			break;
 		}
-flush:
+
 		NAPI_GRO_CB(skb)->flush = 1;
 		return NULL;
-
-	case CHECKSUM_NONE:
-		wsum = ~csum_unfold(csum_ipv6_magic(&iph->saddr, &iph->daddr,
-						    skb_gro_len(skb),
-						    IPPROTO_TCP, 0));
-		sum = csum_fold(skb_checksum(skb,
-					     skb_gro_offset(skb),
-					     skb_gro_len(skb),
-					     wsum));
-		if (sum)
-			goto flush;
-
-		skb->ip_summed = CHECKSUM_UNNECESSARY;
-		break;
 	}
 
 skip_csum:
-- 
cgit 


From fb10f802b0fb76079612cb78505cbc9ad81e683b Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Fri, 22 Nov 2013 14:48:40 +0800
Subject: tcp_memcg: remove useless var old_lim

nobody needs it. remove.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/tcp_memcontrol.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/net/ipv4/tcp_memcontrol.c b/net/ipv4/tcp_memcontrol.c
index 03e9154f7e68..269a89ecd2f4 100644
--- a/net/ipv4/tcp_memcontrol.c
+++ b/net/ipv4/tcp_memcontrol.c
@@ -60,7 +60,6 @@ EXPORT_SYMBOL(tcp_destroy_cgroup);
 static int tcp_update_limit(struct mem_cgroup *memcg, u64 val)
 {
 	struct cg_proto *cg_proto;
-	u64 old_lim;
 	int i;
 	int ret;
 
@@ -71,7 +70,6 @@ static int tcp_update_limit(struct mem_cgroup *memcg, u64 val)
 	if (val > RES_COUNTER_MAX)
 		val = RES_COUNTER_MAX;
 
-	old_lim = res_counter_read_u64(&cg_proto->memory_allocated, RES_LIMIT);
 	ret = res_counter_set_limit(&cg_proto->memory_allocated, val);
 	if (ret)
 		return ret;
-- 
cgit 


From ca15a078bd907df5fc1c009477869c5cbde3b753 Mon Sep 17 00:00:00 2001
From: Oussama Ghorbel <ghorbel@pivasoftware.com>
Date: Fri, 22 Nov 2013 16:23:20 +0100
Subject: sit: generate icmpv6 error when receiving icmpv4 error

Send icmpv6 error with type "destination unreachable" and code
"address unreachable" when receiving icmpv4 error and sufficient
data bytes are available
This patch enhances the compliance of sit tunnel with section 3.4 of
rfc 4213

Signed-off-by: Oussama Ghorbel <ghorbel@pivasoftware.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/sit.c | 44 ++++++++++++++++++++++++++++++++++++++------
 1 file changed, 38 insertions(+), 6 deletions(-)

diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 1b4a4a953675..8435267836a7 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -478,14 +478,44 @@ static void ipip6_tunnel_uninit(struct net_device *dev)
 	dev_put(dev);
 }
 
+/* Generate icmpv6 with type/code ICMPV6_DEST_UNREACH/ICMPV6_ADDR_UNREACH
+ * if sufficient data bytes are available
+ */
+static int ipip6_err_gen_icmpv6_unreach(struct sk_buff *skb)
+{
+	const struct iphdr *iph = (const struct iphdr *) skb->data;
+	struct rt6_info *rt;
+	struct sk_buff *skb2;
+
+	if (!pskb_may_pull(skb, iph->ihl * 4 + sizeof(struct ipv6hdr) + 8))
+		return 1;
+
+	skb2 = skb_clone(skb, GFP_ATOMIC);
+
+	if (!skb2)
+		return 1;
+
+	skb_dst_drop(skb2);
+	skb_pull(skb2, iph->ihl * 4);
+	skb_reset_network_header(skb2);
+
+	rt = rt6_lookup(dev_net(skb->dev), &ipv6_hdr(skb2)->saddr, NULL, 0, 0);
+
+	if (rt && rt->dst.dev)
+		skb2->dev = rt->dst.dev;
+
+	icmpv6_send(skb2, ICMPV6_DEST_UNREACH, ICMPV6_ADDR_UNREACH, 0);
+
+	if (rt)
+		ip6_rt_put(rt);
+
+	kfree_skb(skb2);
+
+	return 0;
+}
 
 static int ipip6_err(struct sk_buff *skb, u32 info)
 {
-
-/* All the routers (except for Linux) return only
-   8 bytes of packet payload. It means, that precise relaying of
-   ICMP in the real Internet is absolutely infeasible.
- */
 	const struct iphdr *iph = (const struct iphdr *)skb->data;
 	const int type = icmp_hdr(skb)->type;
 	const int code = icmp_hdr(skb)->code;
@@ -500,7 +530,6 @@ static int ipip6_err(struct sk_buff *skb, u32 info)
 	case ICMP_DEST_UNREACH:
 		switch (code) {
 		case ICMP_SR_FAILED:
-		case ICMP_PORT_UNREACH:
 			/* Impossible event. */
 			return 0;
 		default:
@@ -545,6 +574,9 @@ static int ipip6_err(struct sk_buff *skb, u32 info)
 		goto out;
 
 	err = 0;
+	if (!ipip6_err_gen_icmpv6_unreach(skb))
+		goto out;
+
 	if (t->parms.iph.ttl == 0 && type == ICMP_TIME_EXCEEDED)
 		goto out;
 
-- 
cgit 


From 85fbaa75037d0b6b786ff18658ddf0b4014ce2a4 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Sat, 23 Nov 2013 00:46:12 +0100
Subject: inet: fix addr_len/msg->msg_namelen assignment in recv_error and
 rxpmtu functions

Commit bceaa90240b6019ed73b49965eac7d167610be69 ("inet: prevent leakage
of uninitialized memory to user in recv syscalls") conditionally updated
addr_len if the msg_name is written to. The recv_error and rxpmtu
functions relied on the recvmsg functions to set up addr_len before.

As this does not happen any more we have to pass addr_len to those
functions as well and set it to the size of the corresponding sockaddr
length.

This broke traceroute and such.

Fixes: bceaa90240b6 ("inet: prevent leakage of uninitialized memory to user in recv syscalls")
Reported-by: Brad Spengler <spender@grsecurity.net>
Reported-by: Tom Labanowski
Cc: mpb <mpb.mail@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/ip.h       | 2 +-
 include/net/ipv6.h     | 6 ++++--
 include/net/ping.h     | 3 ++-
 net/ipv4/ip_sockglue.c | 3 ++-
 net/ipv4/ping.c        | 5 +++--
 net/ipv4/raw.c         | 2 +-
 net/ipv4/udp.c         | 2 +-
 net/ipv6/datagram.c    | 7 +++++--
 net/ipv6/ping.c        | 3 ++-
 net/ipv6/raw.c         | 4 ++--
 net/ipv6/udp.c         | 4 ++--
 net/l2tp/l2tp_ip6.c    | 2 +-
 12 files changed, 26 insertions(+), 17 deletions(-)

diff --git a/include/net/ip.h b/include/net/ip.h
index 217bc5bfc6c6..5a25f36fe3a7 100644
--- a/include/net/ip.h
+++ b/include/net/ip.h
@@ -473,7 +473,7 @@ int compat_ip_getsockopt(struct sock *sk, int level, int optname,
 int ip_ra_control(struct sock *sk, unsigned char on,
 		  void (*destructor)(struct sock *));
 
-int ip_recv_error(struct sock *sk, struct msghdr *msg, int len);
+int ip_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len);
 void ip_icmp_error(struct sock *sk, struct sk_buff *skb, int err, __be16 port,
 		   u32 info, u8 *payload);
 void ip_local_error(struct sock *sk, int err, __be32 daddr, __be16 dport,
diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index 2a5f668cd683..eb198acaac1d 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -776,8 +776,10 @@ int compat_ipv6_getsockopt(struct sock *sk, int level, int optname,
 
 int ip6_datagram_connect(struct sock *sk, struct sockaddr *addr, int addr_len);
 
-int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len);
-int ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len);
+int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len,
+		    int *addr_len);
+int ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len,
+		     int *addr_len);
 void ipv6_icmp_error(struct sock *sk, struct sk_buff *skb, int err, __be16 port,
 		     u32 info, u8 *payload);
 void ipv6_local_error(struct sock *sk, int err, struct flowi6 *fl6, u32 info);
diff --git a/include/net/ping.h b/include/net/ping.h
index 3f67704f3747..90f48417b03d 100644
--- a/include/net/ping.h
+++ b/include/net/ping.h
@@ -31,7 +31,8 @@
 
 /* Compatibility glue so we can support IPv6 when it's compiled as a module */
 struct pingv6_ops {
-	int (*ipv6_recv_error)(struct sock *sk, struct msghdr *msg, int len);
+	int (*ipv6_recv_error)(struct sock *sk, struct msghdr *msg, int len,
+			       int *addr_len);
 	int (*ip6_datagram_recv_ctl)(struct sock *sk, struct msghdr *msg,
 				     struct sk_buff *skb);
 	int (*icmpv6_err_convert)(u8 type, u8 code, int *err);
diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c
index 3f858266fa7e..ddf32a6bc415 100644
--- a/net/ipv4/ip_sockglue.c
+++ b/net/ipv4/ip_sockglue.c
@@ -386,7 +386,7 @@ void ip_local_error(struct sock *sk, int err, __be32 daddr, __be16 port, u32 inf
 /*
  *	Handle MSG_ERRQUEUE
  */
-int ip_recv_error(struct sock *sk, struct msghdr *msg, int len)
+int ip_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len)
 {
 	struct sock_exterr_skb *serr;
 	struct sk_buff *skb, *skb2;
@@ -423,6 +423,7 @@ int ip_recv_error(struct sock *sk, struct msghdr *msg, int len)
 						   serr->addr_offset);
 		sin->sin_port = serr->port;
 		memset(&sin->sin_zero, 0, sizeof(sin->sin_zero));
+		*addr_len = sizeof(*sin);
 	}
 
 	memcpy(&errhdr.ee, &serr->ee, sizeof(struct sock_extended_err));
diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 876c6ca2d8f9..840cf1b9e6ee 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -841,10 +841,11 @@ int ping_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 
 	if (flags & MSG_ERRQUEUE) {
 		if (family == AF_INET) {
-			return ip_recv_error(sk, msg, len);
+			return ip_recv_error(sk, msg, len, addr_len);
 #if IS_ENABLED(CONFIG_IPV6)
 		} else if (family == AF_INET6) {
-			return pingv6_ops.ipv6_recv_error(sk, msg, len);
+			return pingv6_ops.ipv6_recv_error(sk, msg, len,
+							  addr_len);
 #endif
 		}
 	}
diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
index 5cb8ddb505ee..23c3e5b5bb53 100644
--- a/net/ipv4/raw.c
+++ b/net/ipv4/raw.c
@@ -697,7 +697,7 @@ static int raw_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 		goto out;
 
 	if (flags & MSG_ERRQUEUE) {
-		err = ip_recv_error(sk, msg, len);
+		err = ip_recv_error(sk, msg, len, addr_len);
 		goto out;
 	}
 
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 5944d7d668dd..44dfaa09b584 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1236,7 +1236,7 @@ int udp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 	bool slow;
 
 	if (flags & MSG_ERRQUEUE)
-		return ip_recv_error(sk, msg, len);
+		return ip_recv_error(sk, msg, len, addr_len);
 
 try_again:
 	skb = __skb_recv_datagram(sk, flags | (noblock ? MSG_DONTWAIT : 0),
diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index a454b0ff57c7..d690204a0275 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -318,7 +318,7 @@ void ipv6_local_rxpmtu(struct sock *sk, struct flowi6 *fl6, u32 mtu)
 /*
  *	Handle MSG_ERRQUEUE
  */
-int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len)
+int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len)
 {
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct sock_exterr_skb *serr;
@@ -369,6 +369,7 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len)
 					       &sin->sin6_addr);
 			sin->sin6_scope_id = 0;
 		}
+		*addr_len = sizeof(*sin);
 	}
 
 	memcpy(&errhdr.ee, &serr->ee, sizeof(struct sock_extended_err));
@@ -423,7 +424,8 @@ EXPORT_SYMBOL_GPL(ipv6_recv_error);
 /*
  *	Handle IPV6_RECVPATHMTU
  */
-int ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len)
+int ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len,
+		     int *addr_len)
 {
 	struct ipv6_pinfo *np = inet6_sk(sk);
 	struct sk_buff *skb;
@@ -457,6 +459,7 @@ int ipv6_recv_rxpmtu(struct sock *sk, struct msghdr *msg, int len)
 		sin->sin6_port = 0;
 		sin->sin6_scope_id = mtu_info.ip6m_addr.sin6_scope_id;
 		sin->sin6_addr = mtu_info.ip6m_addr.sin6_addr;
+		*addr_len = sizeof(*sin);
 	}
 
 	put_cmsg(msg, SOL_IPV6, IPV6_PATHMTU, sizeof(mtu_info), &mtu_info);
diff --git a/net/ipv6/ping.c b/net/ipv6/ping.c
index 8815e31a87fe..a83243c3d656 100644
--- a/net/ipv6/ping.c
+++ b/net/ipv6/ping.c
@@ -57,7 +57,8 @@ static struct inet_protosw pingv6_protosw = {
 
 
 /* Compatibility glue so we can support IPv6 when it's compiled as a module */
-static int dummy_ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len)
+static int dummy_ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len,
+				 int *addr_len)
 {
 	return -EAFNOSUPPORT;
 }
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index e24ff1df0401..7fb4e14c467f 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -466,10 +466,10 @@ static int rawv6_recvmsg(struct kiocb *iocb, struct sock *sk,
 		return -EOPNOTSUPP;
 
 	if (flags & MSG_ERRQUEUE)
-		return ipv6_recv_error(sk, msg, len);
+		return ipv6_recv_error(sk, msg, len, addr_len);
 
 	if (np->rxpmtu && np->rxopt.bits.rxpmtu)
-		return ipv6_recv_rxpmtu(sk, msg, len);
+		return ipv6_recv_rxpmtu(sk, msg, len, addr_len);
 
 	skb = skb_recv_datagram(sk, flags, noblock, &err);
 	if (!skb)
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 81eb8cf8389b..bcd5699313c3 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -393,10 +393,10 @@ int udpv6_recvmsg(struct kiocb *iocb, struct sock *sk,
 	bool slow;
 
 	if (flags & MSG_ERRQUEUE)
-		return ipv6_recv_error(sk, msg, len);
+		return ipv6_recv_error(sk, msg, len, addr_len);
 
 	if (np->rxpmtu && np->rxopt.bits.rxpmtu)
-		return ipv6_recv_rxpmtu(sk, msg, len);
+		return ipv6_recv_rxpmtu(sk, msg, len, addr_len);
 
 try_again:
 	skb = __skb_recv_datagram(sk, flags | (noblock ? MSG_DONTWAIT : 0),
diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
index cfd65304be60..d9b437e55007 100644
--- a/net/l2tp/l2tp_ip6.c
+++ b/net/l2tp/l2tp_ip6.c
@@ -665,7 +665,7 @@ static int l2tp_ip6_recvmsg(struct kiocb *iocb, struct sock *sk,
 		*addr_len = sizeof(*lsa);
 
 	if (flags & MSG_ERRQUEUE)
-		return ipv6_recv_error(sk, msg, len);
+		return ipv6_recv_error(sk, msg, len, addr_len);
 
 	skb = skb_recv_datagram(sk, flags, noblock, &err);
 	if (!skb)
-- 
cgit 


From 1fa4c710b6fe7b0aac9907240291b6fe6aafc3b8 Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Sat, 23 Nov 2013 07:22:33 +0100
Subject: ipv6: fix leaking uninitialized port number of offender sockaddr

Offenders don't have port numbers, so set it to 0.

Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/datagram.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/ipv6/datagram.c b/net/ipv6/datagram.c
index d690204a0275..8dfe1f4d3c1a 100644
--- a/net/ipv6/datagram.c
+++ b/net/ipv6/datagram.c
@@ -378,6 +378,7 @@ int ipv6_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len)
 	if (serr->ee.ee_origin != SO_EE_ORIGIN_LOCAL) {
 		sin->sin6_family = AF_INET6;
 		sin->sin6_flowinfo = 0;
+		sin->sin6_port = 0;
 		if (skb->protocol == htons(ETH_P_IPV6)) {
 			sin->sin6_addr = ipv6_hdr(skb)->saddr;
 			if (np->rxopt.all)
-- 
cgit 


From 4d0820cf6a55d72350cb2d24a4504f62fbde95d9 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Sat, 23 Nov 2013 12:59:20 -0800
Subject: sch_tbf: handle too small burst

If a too small burst is inadvertently set on TBF, we might trigger
a bug in tbf_segment(), as 'skb' instead of 'segs' was used in a
qdisc_reshape_fail() call.

tc qdisc add dev eth0 root handle 1: tbf latency 50ms burst 1KB rate
50mbit

Fix the bug, and add a warning, as such configuration is not
going to work anyway for non GSO packets.

(For some reason, one has to use a burst >= 1520 to get a working
configuration, even with old kernels. This is a probable iproute2/tc
bug)

Based on a report and initial patch from Yang Yingliang

Fixes: e43ac79a4bc6 ("sch_tbf: segment too big GSO packets")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sched/sch_tbf.c | 32 +++++++++++++++++++++++++-------
 1 file changed, 25 insertions(+), 7 deletions(-)

diff --git a/net/sched/sch_tbf.c b/net/sched/sch_tbf.c
index 68f98595819c..a6090051c5db 100644
--- a/net/sched/sch_tbf.c
+++ b/net/sched/sch_tbf.c
@@ -21,6 +21,7 @@
 #include <net/netlink.h>
 #include <net/sch_generic.h>
 #include <net/pkt_sched.h>
+#include <net/tcp.h>
 
 
 /*	Simple Token Bucket Filter.
@@ -117,6 +118,22 @@ struct tbf_sched_data {
 };
 
 
+/*
+ * Return length of individual segments of a gso packet,
+ * including all headers (MAC, IP, TCP/UDP)
+ */
+static unsigned int skb_gso_seglen(const struct sk_buff *skb)
+{
+	unsigned int hdr_len = skb_transport_header(skb) - skb_mac_header(skb);
+	const struct skb_shared_info *shinfo = skb_shinfo(skb);
+
+	if (likely(shinfo->gso_type & (SKB_GSO_TCPV4 | SKB_GSO_TCPV6)))
+		hdr_len += tcp_hdrlen(skb);
+	else
+		hdr_len += sizeof(struct udphdr);
+	return hdr_len + shinfo->gso_size;
+}
+
 /* GSO packet is too big, segment it so that tbf can transmit
  * each segment in time
  */
@@ -136,12 +153,8 @@ static int tbf_segment(struct sk_buff *skb, struct Qdisc *sch)
 	while (segs) {
 		nskb = segs->next;
 		segs->next = NULL;
-		if (likely(segs->len <= q->max_size)) {
-			qdisc_skb_cb(segs)->pkt_len = segs->len;
-			ret = qdisc_enqueue(segs, q->qdisc);
-		} else {
-			ret = qdisc_reshape_fail(skb, sch);
-		}
+		qdisc_skb_cb(segs)->pkt_len = segs->len;
+		ret = qdisc_enqueue(segs, q->qdisc);
 		if (ret != NET_XMIT_SUCCESS) {
 			if (net_xmit_drop_count(ret))
 				sch->qstats.drops++;
@@ -163,7 +176,7 @@ static int tbf_enqueue(struct sk_buff *skb, struct Qdisc *sch)
 	int ret;
 
 	if (qdisc_pkt_len(skb) > q->max_size) {
-		if (skb_is_gso(skb))
+		if (skb_is_gso(skb) && skb_gso_seglen(skb) <= q->max_size)
 			return tbf_segment(skb, sch);
 		return qdisc_reshape_fail(skb, sch);
 	}
@@ -319,6 +332,11 @@ static int tbf_change(struct Qdisc *sch, struct nlattr *opt)
 	if (max_size < 0)
 		goto done;
 
+	if (max_size < psched_mtu(qdisc_dev(sch)))
+		pr_warn_ratelimited("sch_tbf: burst %u is lower than device %s mtu (%u) !\n",
+				    max_size, qdisc_dev(sch)->name,
+				    psched_mtu(qdisc_dev(sch)));
+
 	if (q->qdisc != &noop_qdisc) {
 		err = fifo_set_limit(q->qdisc, qopt->limit);
 		if (err)
-- 
cgit 


From d4360d6fb61af7aa8e027bf5983598d5437737cc Mon Sep 17 00:00:00 2001
From: Ajit Khaparde <ajit.khaparde@emulex.com>
Date: Fri, 22 Nov 2013 12:51:09 -0600
Subject: be2net: Disabling and enabling interrupts in suspend and resume

Interrupts need to be enabled in be_resume, when adapter boots back up from D3cold.

disabling interrupts in be_suspend() just to be symmetric to be_resume().

Signed-off-by: Ravikumar Nelavelli <ravikumar.nelavelli@emulex.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be_main.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index abde97471636..9b148cf04704 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -4599,6 +4599,7 @@ static int be_suspend(struct pci_dev *pdev, pm_message_t state)
 	if (adapter->wol)
 		be_setup_wol(adapter, true);
 
+	be_intr_set(adapter, false);
 	cancel_delayed_work_sync(&adapter->func_recovery_work);
 
 	netif_device_detach(netdev);
@@ -4634,6 +4635,7 @@ static int be_resume(struct pci_dev *pdev)
 	if (status)
 		return status;
 
+	be_intr_set(adapter, true);
 	/* tell fw we're ready to fire cmds */
 	status = be_cmd_fw_init(adapter);
 	if (status)
-- 
cgit 


From 09e83a9d449c1af533321f5bda62b6a59a4098c6 Mon Sep 17 00:00:00 2001
From: Ajit Khaparde <ajit.khaparde@emulex.com>
Date: Fri, 22 Nov 2013 12:51:20 -0600
Subject: be2net: set coalesce-wm in CQ_CREATE_V2 cmd

It is not being set currently. (This field is not applicable for Lancer)

Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be_cmds.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index dbcd5262c016..e0e8bc1ef14c 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -1032,6 +1032,13 @@ int be_cmd_cq_create(struct be_adapter *adapter, struct be_queue_info *cq,
 	} else {
 		req->hdr.version = 2;
 		req->page_size = 1; /* 1 for 4K */
+
+		/* coalesce-wm field in this cmd is not relevant to Lancer.
+		 * Lancer uses COMMON_MODIFY_CQ to set this field
+		 */
+		if (!lancer_chip(adapter))
+			AMAP_SET_BITS(struct amap_cq_context_v2, coalescwm,
+				      ctxt, coalesce_wm);
 		AMAP_SET_BITS(struct amap_cq_context_v2, nodelay, ctxt,
 								no_delay);
 		AMAP_SET_BITS(struct amap_cq_context_v2, count, ctxt,
-- 
cgit 


From 2c7a9dc1641664173211c4ebc5db510a08684c46 Mon Sep 17 00:00:00 2001
From: Ajit Khaparde <ajit.khaparde@emulex.com>
Date: Fri, 22 Nov 2013 12:51:28 -0600
Subject: be2net: Avoid programming permenant MAC by BE3-R VFs

On BE3-R, the PF programs the initial MAC address for its VFs. Doing it again
in VF probe, causes a FW error which although harmless generates
an unnecessary error log message.

Signed-off-by: Vasundhara Volam <vasundhara.volam@emulex.com>
Signed-off-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be.h      |  1 +
 drivers/net/ethernet/emulex/benet/be_main.c | 10 ++++------
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be.h b/drivers/net/ethernet/emulex/benet/be.h
index f4825db5d179..5878df619b53 100644
--- a/drivers/net/ethernet/emulex/benet/be.h
+++ b/drivers/net/ethernet/emulex/benet/be.h
@@ -503,6 +503,7 @@ struct be_adapter {
 };
 
 #define be_physfn(adapter)		(!adapter->virtfn)
+#define be_virtfn(adapter)		(adapter->virtfn)
 #define	sriov_enabled(adapter)		(adapter->num_vfs > 0)
 #define sriov_want(adapter)             (be_physfn(adapter) &&	\
 					 (num_vfs || pci_num_vf(adapter->pdev)))
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 9b148cf04704..78a0e859760b 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -3253,12 +3253,10 @@ static int be_mac_setup(struct be_adapter *adapter)
 		memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN);
 	}
 
-	/* On BE3 VFs this cmd may fail due to lack of privilege.
-	 * Ignore the failure as in this case pmac_id is fetched
-	 * in the IFACE_CREATE cmd.
-	 */
-	be_cmd_pmac_add(adapter, mac, adapter->if_handle,
-			&adapter->pmac_id[0], 0);
+	/* For BE3-R VFs, the PF programs the initial MAC address */
+	if (!(BEx_chip(adapter) && be_virtfn(adapter)))
+		be_cmd_pmac_add(adapter, mac, adapter->if_handle,
+				&adapter->pmac_id[0], 0);
 	return 0;
 }
 
-- 
cgit 


From 34ef7bd3823bf4401bf8f1f855e1bc77b82b1a43 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sat, 23 Nov 2013 16:36:35 -0800
Subject: Revert "ima: define '_ima' as a builtin 'trusted' keyring"
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This reverts commit 217091dd7a7a1bdac027ddb7c5a25f6ac0b8e241, which
caused the following build error:

  security/integrity/digsig.c:70:5: error: redefinition of ‘integrity_init_keyring’
  security/integrity/integrity.h:149:12: note: previous definition of ‘integrity_init_keyring’ w
  security/integrity/integrity.h:149:12: warning: ‘integrity_init_keyring’ defined but not used

reported by Krzysztof Kolasa. Mimi says:

 "I made the classic mistake of requesting this patch to be upstreamed
  at the last second, rather than waiting until the next open window.

  At this point, the best course would probably be to revert the two
  commits and fix them for the next open window"

Reported-by: Krzysztof Kolasa <kkolasa@winsoft.pl>
Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 security/integrity/digsig.c           | 30 +-----------------------------
 security/integrity/ima/Kconfig        |  8 --------
 security/integrity/ima/ima_appraise.c | 11 -----------
 security/integrity/integrity.h        |  7 -------
 4 files changed, 1 insertion(+), 55 deletions(-)

diff --git a/security/integrity/digsig.c b/security/integrity/digsig.c
index 77ca965ab684..b4af4ebc5be2 100644
--- a/security/integrity/digsig.c
+++ b/security/integrity/digsig.c
@@ -13,9 +13,7 @@
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/err.h>
-#include <linux/sched.h>
 #include <linux/rbtree.h>
-#include <linux/cred.h>
 #include <linux/key-type.h>
 #include <linux/digsig.h>
 
@@ -23,19 +21,11 @@
 
 static struct key *keyring[INTEGRITY_KEYRING_MAX];
 
-#ifdef CONFIG_IMA_TRUSTED_KEYRING
-static const char *keyring_name[INTEGRITY_KEYRING_MAX] = {
-	".evm",
-	".module",
-	".ima",
-};
-#else
 static const char *keyring_name[INTEGRITY_KEYRING_MAX] = {
 	"_evm",
 	"_module",
 	"_ima",
 };
-#endif
 
 int integrity_digsig_verify(const unsigned int id, const char *sig, int siglen,
 			    const char *digest, int digestlen)
@@ -45,7 +35,7 @@ int integrity_digsig_verify(const unsigned int id, const char *sig, int siglen,
 
 	if (!keyring[id]) {
 		keyring[id] =
-		    request_key(&key_type_keyring, keyring_name[id], NULL);
+			request_key(&key_type_keyring, keyring_name[id], NULL);
 		if (IS_ERR(keyring[id])) {
 			int err = PTR_ERR(keyring[id]);
 			pr_err("no %s keyring: %d\n", keyring_name[id], err);
@@ -66,21 +56,3 @@ int integrity_digsig_verify(const unsigned int id, const char *sig, int siglen,
 
 	return -EOPNOTSUPP;
 }
-
-int integrity_init_keyring(const unsigned int id)
-{
-	const struct cred *cred = current_cred();
-	const struct user_struct *user = cred->user;
-
-	keyring[id] = keyring_alloc(keyring_name[id], KUIDT_INIT(0),
-				    KGIDT_INIT(0), cred,
-				    ((KEY_POS_ALL & ~KEY_POS_SETATTR) |
-				     KEY_USR_VIEW | KEY_USR_READ),
-				    KEY_ALLOC_NOT_IN_QUOTA, user->uid_keyring);
-	if (!IS_ERR(keyring[id]))
-		set_bit(KEY_FLAG_TRUSTED_ONLY, &keyring[id]->flags);
-	else
-		pr_info("Can't allocate %s keyring (%ld)\n",
-			keyring_name[id], PTR_ERR(keyring[id]));
-	return 0;
-}
diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig
index dad8d4ca2437..81a27971d884 100644
--- a/security/integrity/ima/Kconfig
+++ b/security/integrity/ima/Kconfig
@@ -123,11 +123,3 @@ config IMA_APPRAISE
 	  For more information on integrity appraisal refer to:
 	  <http://linux-ima.sourceforge.net>
 	  If unsure, say N.
-
-config IMA_TRUSTED_KEYRING
-	bool "Require all keys on the _ima keyring be signed"
-	depends on IMA_APPRAISE && SYSTEM_TRUSTED_KEYRING
-	default y
-	help
-	   This option requires that all keys added to the _ima
-	   keyring be signed by a key on the system trusted keyring.
diff --git a/security/integrity/ima/ima_appraise.c b/security/integrity/ima/ima_appraise.c
index 46353ee517f6..734e9468aca0 100644
--- a/security/integrity/ima/ima_appraise.c
+++ b/security/integrity/ima/ima_appraise.c
@@ -381,14 +381,3 @@ int ima_inode_removexattr(struct dentry *dentry, const char *xattr_name)
 	}
 	return result;
 }
-
-#ifdef CONFIG_IMA_TRUSTED_KEYRING
-static int __init init_ima_keyring(void)
-{
-	int ret;
-
-	ret = integrity_init_keyring(INTEGRITY_KEYRING_IMA);
-	return 0;
-}
-late_initcall(init_ima_keyring);
-#endif
diff --git a/security/integrity/integrity.h b/security/integrity/integrity.h
index b9e7c133734a..2fb5e53e927f 100644
--- a/security/integrity/integrity.h
+++ b/security/integrity/integrity.h
@@ -137,19 +137,12 @@ static inline int integrity_digsig_verify(const unsigned int id,
 #ifdef CONFIG_INTEGRITY_ASYMMETRIC_KEYS
 int asymmetric_verify(struct key *keyring, const char *sig,
 		      int siglen, const char *data, int datalen);
-
-int integrity_init_keyring(const unsigned int id);
 #else
 static inline int asymmetric_verify(struct key *keyring, const char *sig,
 				    int siglen, const char *data, int datalen)
 {
 	return -EOPNOTSUPP;
 }
-
-static int integrity_init_keyring(const unsigned int id)
-{
-	return 0;
-}
 #endif
 
 #ifdef CONFIG_INTEGRITY_AUDIT
-- 
cgit 


From 4c1cc40a2d49500d84038ff751bc6cd183e729b5 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Sat, 23 Nov 2013 16:38:17 -0800
Subject: Revert "KEYS: verify a certificate is signed by a 'trusted' key"
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This reverts commit 09fbc47373826d67531380662b516de2da120545, which
caused the following build errors:

  crypto/asymmetric_keys/x509_public_key.c: In function ‘x509_key_preparse’:
  crypto/asymmetric_keys/x509_public_key.c:237:35: error: ‘system_trusted_keyring’ undeclared (first use in this function)
   ret = x509_validate_trust(cert, system_trusted_keyring);
                                   ^
  crypto/asymmetric_keys/x509_public_key.c:237:35: note: each undeclared identifier is reported only once for each function it appears in

reported by Jim Davis. Mimi says:

 "I made the classic mistake of requesting this patch to be upstreamed
  at the last second, rather than waiting until the next open window.

  At this point, the best course would probably be to revert the two
  commits and fix them for the next open window"

Reported-by: Jim Davis <jim.epost@gmail.com>
Acked-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 crypto/asymmetric_keys/x509_public_key.c | 81 +-------------------------------
 1 file changed, 1 insertion(+), 80 deletions(-)

diff --git a/crypto/asymmetric_keys/x509_public_key.c b/crypto/asymmetric_keys/x509_public_key.c
index f83300b6e8c1..382ef0d2ff2e 100644
--- a/crypto/asymmetric_keys/x509_public_key.c
+++ b/crypto/asymmetric_keys/x509_public_key.c
@@ -18,59 +18,11 @@
 #include <linux/asn1_decoder.h>
 #include <keys/asymmetric-subtype.h>
 #include <keys/asymmetric-parser.h>
-#include <keys/system_keyring.h>
 #include <crypto/hash.h>
 #include "asymmetric_keys.h"
 #include "public_key.h"
 #include "x509_parser.h"
 
-/*
- * Find a key in the given keyring by issuer and authority.
- */
-static struct key *x509_request_asymmetric_key(
-	struct key *keyring,
-	const char *signer, size_t signer_len,
-	const char *authority, size_t auth_len)
-{
-	key_ref_t key;
-	char *id;
-
-	/* Construct an identifier. */
-	id = kmalloc(signer_len + 2 + auth_len + 1, GFP_KERNEL);
-	if (!id)
-		return ERR_PTR(-ENOMEM);
-
-	memcpy(id, signer, signer_len);
-	id[signer_len + 0] = ':';
-	id[signer_len + 1] = ' ';
-	memcpy(id + signer_len + 2, authority, auth_len);
-	id[signer_len + 2 + auth_len] = 0;
-
-	pr_debug("Look up: \"%s\"\n", id);
-
-	key = keyring_search(make_key_ref(keyring, 1),
-			     &key_type_asymmetric, id);
-	if (IS_ERR(key))
-		pr_debug("Request for module key '%s' err %ld\n",
-			 id, PTR_ERR(key));
-	kfree(id);
-
-	if (IS_ERR(key)) {
-		switch (PTR_ERR(key)) {
-			/* Hide some search errors */
-		case -EACCES:
-		case -ENOTDIR:
-		case -EAGAIN:
-			return ERR_PTR(-ENOKEY);
-		default:
-			return ERR_CAST(key);
-		}
-	}
-
-	pr_devel("<==%s() = 0 [%x]\n", __func__, key_serial(key_ref_to_ptr(key)));
-	return key_ref_to_ptr(key);
-}
-
 /*
  * Set up the signature parameters in an X.509 certificate.  This involves
  * digesting the signed data and extracting the signature.
@@ -150,33 +102,6 @@ int x509_check_signature(const struct public_key *pub,
 }
 EXPORT_SYMBOL_GPL(x509_check_signature);
 
-/*
- * Check the new certificate against the ones in the trust keyring.  If one of
- * those is the signing key and validates the new certificate, then mark the
- * new certificate as being trusted.
- *
- * Return 0 if the new certificate was successfully validated, 1 if we couldn't
- * find a matching parent certificate in the trusted list and an error if there
- * is a matching certificate but the signature check fails.
- */
-static int x509_validate_trust(struct x509_certificate *cert,
-			       struct key *trust_keyring)
-{
-	const struct public_key *pk;
-	struct key *key;
-	int ret = 1;
-
-	key = x509_request_asymmetric_key(trust_keyring,
-					  cert->issuer, strlen(cert->issuer),
-					  cert->authority,
-					  strlen(cert->authority));
-	if (!IS_ERR(key))  {
-		pk = key->payload.data;
-		ret = x509_check_signature(pk, cert);
-	}
-	return ret;
-}
-
 /*
  * Attempt to parse a data blob for a key as an X509 certificate.
  */
@@ -230,13 +155,9 @@ static int x509_key_preparse(struct key_preparsed_payload *prep)
 	/* Check the signature on the key if it appears to be self-signed */
 	if (!cert->authority ||
 	    strcmp(cert->fingerprint, cert->authority) == 0) {
-		ret = x509_check_signature(cert->pub, cert); /* self-signed */
+		ret = x509_check_signature(cert->pub, cert);
 		if (ret < 0)
 			goto error_free_cert;
-	} else {
-		ret = x509_validate_trust(cert, system_trusted_keyring);
-		if (!ret)
-			prep->trusted = 1;
 	}
 
 	/* Propose a description */
-- 
cgit 


From 6d565409503f4e1f74ac30de14e8c91a2b826cd8 Mon Sep 17 00:00:00 2001
From: Phillip Lougher <phillip@squashfs.org.uk>
Date: Sun, 24 Nov 2013 00:40:49 +0000
Subject: Squashfs: fix failure to unlock pages on decompress error

Direct decompression into the page cache.  If we fall back
to using an intermediate buffer (because we cannot grab all the
page cache pages) and we get a decompress fail, we forgot to
release the pages.

Reported-by: Roman Peniaev <r.peniaev@gmail.com>
Signed-off-by: Phillip Lougher <phillip@squashfs.org.uk>
---
 fs/squashfs/file_direct.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/fs/squashfs/file_direct.c b/fs/squashfs/file_direct.c
index 2943b2bfae48..62a0de6632e1 100644
--- a/fs/squashfs/file_direct.c
+++ b/fs/squashfs/file_direct.c
@@ -84,6 +84,9 @@ int squashfs_readpage_block(struct page *target_page, u64 block, int bsize)
 		 */
 		res = squashfs_read_cache(target_page, block, bsize, pages,
 								page);
+		if (res < 0)
+			goto mark_errored;
+
 		goto out;
 	}
 
@@ -119,7 +122,7 @@ mark_errored:
 	 * dealt with by the caller
 	 */
 	for (i = 0; i < pages; i++) {
-		if (page[i] == target_page)
+		if (page[i] == NULL || page[i] == target_page)
 			continue;
 		flush_dcache_page(page[i]);
 		SetPageError(page[i]);
-- 
cgit 


From 0fb50e5539c1525939b89c1813b60cc72f90a3e1 Mon Sep 17 00:00:00 2001
From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Thu, 7 Nov 2013 00:56:28 -0800
Subject: ASoC: rcar: select REGMAP

55e5b6fd5af04b6d8b0ac6635edf49476ff298ba
(ASoC: rsnd: use regmap instead of original register mapping method)
support regmap/regmap_field on Renesas sound driver.
It needs CONFIG_REGMAP now.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/sh/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/soc/sh/Kconfig b/sound/soc/sh/Kconfig
index 14011d90d70a..ff60e11ecb56 100644
--- a/sound/soc/sh/Kconfig
+++ b/sound/soc/sh/Kconfig
@@ -37,6 +37,7 @@ config SND_SOC_SH4_SIU
 config SND_SOC_RCAR
 	tristate "R-Car series SRU/SCU/SSIU/SSI support"
 	select SND_SIMPLE_CARD
+	select REGMAP
 	help
 	  This option enables R-Car SUR/SCU/SSIU/SSI sound support
 
-- 
cgit 


From faf6615bf05bc5cecc6e22013b9cb21c77784fd1 Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Fri, 22 Nov 2013 10:29:18 -0700
Subject: ASoC: dapm: Use SND_SOC_DAPM_INIT_REG_VAL in SND_SOC_DAPM_MUX

SND_SOC_DAPM_MUX() doesn't currently initialize the .mask field. This
results in the mux never affecting HW, since no bits are ever set or
cleared. Fix SND_SOC_DAPM_MUX() to use SND_SOC_DAPM_INIT_REG_VAL() to
set up the reg, shift, on_val, and off_val fields like almost all other
SND_SOC_xxx() macros. It looks like this was a "typo" in the fixed
commit linked below.

This makes the speakers on the Toshiba AC100 (PAZ00) laptop work again.

Fixes: de9ba98b6d26 ("ASoC: dapm: Make widget power register settings more flexible")
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: <stable@vger.kernel.org> # v3.12+
---
 include/sound/soc-dapm.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h
index 2037c45adfe6..56ebdfca6273 100644
--- a/include/sound/soc-dapm.h
+++ b/include/sound/soc-dapm.h
@@ -104,7 +104,8 @@ struct device;
 	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 	.kcontrol_news = wcontrols, .num_kcontrols = 1}
 #define SND_SOC_DAPM_MUX(wname, wreg, wshift, winvert, wcontrols) \
-{	.id = snd_soc_dapm_mux, .name = wname, .reg = wreg, \
+{	.id = snd_soc_dapm_mux, .name = wname, \
+	SND_SOC_DAPM_INIT_REG_VAL(wreg, wshift, winvert), \
 	.kcontrol_news = wcontrols, .num_kcontrols = 1}
 #define SND_SOC_DAPM_VIRT_MUX(wname, wreg, wshift, winvert, wcontrols) \
 {	.id = snd_soc_dapm_virt_mux, .name = wname, \
-- 
cgit 


From 54acbd9688e6324470671525c7916011f1ff8081 Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Tue, 12 Nov 2013 12:06:21 +0200
Subject: spi/pxa2xx: add new ACPI IDs

Newer Intel PCHs with LPSS have the same SPI controllers than Haswell but
ACPI IDs are different. Add these IDs to the driver list.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
---
 drivers/spi/spi-pxa2xx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index cb0e1f1137ad..7028180a020a 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1073,6 +1073,8 @@ pxa2xx_spi_acpi_get_pdata(struct platform_device *pdev)
 static struct acpi_device_id pxa2xx_spi_acpi_match[] = {
 	{ "INT33C0", 0 },
 	{ "INT33C1", 0 },
+	{ "INT3430", 0 },
+	{ "INT3431", 0 },
 	{ "80860F0E", 0 },
 	{ },
 };
-- 
cgit 


From 160a061301c7adf54c40696e7ceedc73f6b747dd Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Mon, 11 Nov 2013 14:13:41 +0800
Subject: spi/qspi: set correct platform drvdata in ti_qspi_probe()

The ti_qspi_remove() use the platform drvdata as a type of
struct ti_qspi, we should pass correct platform drvdata to
platform_set_drvdata() in ti_qspi_probe().

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-ti-qspi.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c
index 0b71270fbf67..e147ed42e1fc 100644
--- a/drivers/spi/spi-ti-qspi.c
+++ b/drivers/spi/spi-ti-qspi.c
@@ -459,11 +459,10 @@ static int ti_qspi_probe(struct platform_device *pdev)
 	if (!of_property_read_u32(np, "num-cs", &num_cs))
 		master->num_chipselect = num_cs;
 
-	platform_set_drvdata(pdev, master);
-
 	qspi = spi_master_get_devdata(master);
 	qspi->master = master;
 	qspi->dev = &pdev->dev;
+	platform_set_drvdata(pdev, qspi);
 
 	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
-- 
cgit 


From 05b96675dbfc97fbb66d58cacbf2c8def020375e Mon Sep 17 00:00:00 2001
From: Sourav Poddar <sourav.poddar@ti.com>
Date: Tue, 19 Nov 2013 18:37:15 +0530
Subject: spi/qspi: cleanup pm_runtime error check.

clean up pm_runtime error check in accordance with rest of the check in
the driver.

Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-ti-qspi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c
index e147ed42e1fc..f3c3c3f7aaed 100644
--- a/drivers/spi/spi-ti-qspi.c
+++ b/drivers/spi/spi-ti-qspi.c
@@ -161,7 +161,7 @@ static int ti_qspi_setup(struct spi_device *spi)
 			qspi->spi_max_frequency, clk_div);
 
 	ret = pm_runtime_get_sync(qspi->dev);
-	if (ret) {
+	if (ret < 0) {
 		dev_err(qspi->dev, "pm_runtime_get_sync() failed\n");
 		return ret;
 	}
-- 
cgit 


From cbcabb7a300bf5ab868c632048889a933e7cdae5 Mon Sep 17 00:00:00 2001
From: Sourav Poddar <sourav.poddar@ti.com>
Date: Tue, 19 Nov 2013 18:37:16 +0530
Subject: spi/qspi: Fix qspi remove path.

There is a bug in qspi removal path, as a result of which
qspi cannot be removed when used as a module. The patch
solves the bug and qspi can be removed cleanly.

The bugs fixed are:
-pm_runtime used around register access.
- pm_runtime_disable need to be done before removal.
- spi_unregister_master need to be called to unregister
   the spi device.
Tested on DRA7 board.

Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-ti-qspi.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-ti-qspi.c b/drivers/spi/spi-ti-qspi.c
index f3c3c3f7aaed..4396bd448540 100644
--- a/drivers/spi/spi-ti-qspi.c
+++ b/drivers/spi/spi-ti-qspi.c
@@ -516,10 +516,26 @@ free_master:
 
 static int ti_qspi_remove(struct platform_device *pdev)
 {
-	struct	ti_qspi *qspi = platform_get_drvdata(pdev);
+	struct spi_master *master;
+	struct ti_qspi *qspi;
+	int ret;
+
+	master = platform_get_drvdata(pdev);
+	qspi = spi_master_get_devdata(master);
+
+	ret = pm_runtime_get_sync(qspi->dev);
+	if (ret < 0) {
+		dev_err(qspi->dev, "pm_runtime_get_sync() failed\n");
+		return ret;
+	}
 
 	ti_qspi_write(qspi, QSPI_WC_INT_DISABLE, QSPI_INTR_ENABLE_CLEAR_REG);
 
+	pm_runtime_put(qspi->dev);
+	pm_runtime_disable(&pdev->dev);
+
+	spi_unregister_master(master);
+
 	return 0;
 }
 
-- 
cgit 


From 7e3528c3660a2e8602abc7858b0994d611f74bc3 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Fri, 22 Nov 2013 18:14:38 -0800
Subject: slab.h: remove duplicate kmalloc declaration and fix kernel-doc
 warnings

Fix kernel-doc warning for duplicate definition of 'kmalloc':

  Documentation/DocBook/kernel-api.xml:9483: element refentry: validity error : ID API-kmalloc already defined
  <refentry id="API-kmalloc">

Also combine the kernel-doc info from the 2 kmalloc definitions into one
block and remove the "see kcalloc" comment since kmalloc now contains the
@flags info.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/slab.h | 102 +++++++++++++++++++++++----------------------------
 1 file changed, 46 insertions(+), 56 deletions(-)

diff --git a/include/linux/slab.h b/include/linux/slab.h
index c2bba248fa63..1e2f4fe12773 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -388,10 +388,55 @@ static __always_inline void *kmalloc_large(size_t size, gfp_t flags)
 /**
  * kmalloc - allocate memory
  * @size: how many bytes of memory are required.
- * @flags: the type of memory to allocate (see kcalloc).
+ * @flags: the type of memory to allocate.
  *
  * kmalloc is the normal method of allocating memory
  * for objects smaller than page size in the kernel.
+ *
+ * The @flags argument may be one of:
+ *
+ * %GFP_USER - Allocate memory on behalf of user.  May sleep.
+ *
+ * %GFP_KERNEL - Allocate normal kernel ram.  May sleep.
+ *
+ * %GFP_ATOMIC - Allocation will not sleep.  May use emergency pools.
+ *   For example, use this inside interrupt handlers.
+ *
+ * %GFP_HIGHUSER - Allocate pages from high memory.
+ *
+ * %GFP_NOIO - Do not do any I/O at all while trying to get memory.
+ *
+ * %GFP_NOFS - Do not make any fs calls while trying to get memory.
+ *
+ * %GFP_NOWAIT - Allocation will not sleep.
+ *
+ * %GFP_THISNODE - Allocate node-local memory only.
+ *
+ * %GFP_DMA - Allocation suitable for DMA.
+ *   Should only be used for kmalloc() caches. Otherwise, use a
+ *   slab created with SLAB_DMA.
+ *
+ * Also it is possible to set different flags by OR'ing
+ * in one or more of the following additional @flags:
+ *
+ * %__GFP_COLD - Request cache-cold pages instead of
+ *   trying to return cache-warm pages.
+ *
+ * %__GFP_HIGH - This allocation has high priority and may use emergency pools.
+ *
+ * %__GFP_NOFAIL - Indicate that this allocation is in no way allowed to fail
+ *   (think twice before using).
+ *
+ * %__GFP_NORETRY - If memory is not immediately available,
+ *   then give up at once.
+ *
+ * %__GFP_NOWARN - If allocation fails, don't issue any warnings.
+ *
+ * %__GFP_REPEAT - If allocation fails initially, try once more before failing.
+ *
+ * There are other flags available as well, but these are not intended
+ * for general use, and so are not documented here. For a full list of
+ * potential flags, always refer to linux/gfp.h.
  */
 static __always_inline void *kmalloc(size_t size, gfp_t flags)
 {
@@ -501,61 +546,6 @@ struct seq_file;
 int cache_show(struct kmem_cache *s, struct seq_file *m);
 void print_slabinfo_header(struct seq_file *m);
 
-/**
- * kmalloc - allocate memory
- * @size: how many bytes of memory are required.
- * @flags: the type of memory to allocate.
- *
- * The @flags argument may be one of:
- *
- * %GFP_USER - Allocate memory on behalf of user.  May sleep.
- *
- * %GFP_KERNEL - Allocate normal kernel ram.  May sleep.
- *
- * %GFP_ATOMIC - Allocation will not sleep.  May use emergency pools.
- *   For example, use this inside interrupt handlers.
- *
- * %GFP_HIGHUSER - Allocate pages from high memory.
- *
- * %GFP_NOIO - Do not do any I/O at all while trying to get memory.
- *
- * %GFP_NOFS - Do not make any fs calls while trying to get memory.
- *
- * %GFP_NOWAIT - Allocation will not sleep.
- *
- * %GFP_THISNODE - Allocate node-local memory only.
- *
- * %GFP_DMA - Allocation suitable for DMA.
- *   Should only be used for kmalloc() caches. Otherwise, use a
- *   slab created with SLAB_DMA.
- *
- * Also it is possible to set different flags by OR'ing
- * in one or more of the following additional @flags:
- *
- * %__GFP_COLD - Request cache-cold pages instead of
- *   trying to return cache-warm pages.
- *
- * %__GFP_HIGH - This allocation has high priority and may use emergency pools.
- *
- * %__GFP_NOFAIL - Indicate that this allocation is in no way allowed to fail
- *   (think twice before using).
- *
- * %__GFP_NORETRY - If memory is not immediately available,
- *   then give up at once.
- *
- * %__GFP_NOWARN - If allocation fails, don't issue any warnings.
- *
- * %__GFP_REPEAT - If allocation fails initially, try once more before failing.
- *
- * There are other flags available as well, but these are not intended
- * for general use, and so are not documented here. For a full list of
- * potential flags, always refer to linux/gfp.h.
- *
- * kmalloc is the normal method of allocating memory
- * in the kernel.
- */
-static __always_inline void *kmalloc(size_t size, gfp_t flags);
-
 /**
  * kmalloc_array - allocate memory for an array.
  * @n: number of elements.
-- 
cgit 


From c170bbb45febc03ac4d34ba2b8bb55e06104b7e7 Mon Sep 17 00:00:00 2001
From: Kent Overstreet <kmo@daterainc.com>
Date: Sun, 24 Nov 2013 16:32:22 -0700
Subject: block: submit_bio_wait() conversions

It was being open coded in a few places.

Signed-off-by: Kent Overstreet <kmo@daterainc.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Joern Engel <joern@logfs.org>
Cc: Prasad Joshi <prasadjoshi.linux@gmail.com>
Cc: Neil Brown <neilb@suse.de>
Cc: Chris Mason <chris.mason@fusionio.com>
Acked-by: NeilBrown <neilb@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-flush.c          | 19 +------------------
 drivers/md/md.c            | 12 +-----------
 fs/btrfs/check-integrity.c | 32 +++++++++++++-------------------
 fs/btrfs/check-integrity.h |  2 ++
 fs/btrfs/extent_io.c       | 12 +-----------
 fs/btrfs/scrub.c           | 33 ++++-----------------------------
 fs/hfsplus/wrapper.c       | 17 +----------------
 fs/logfs/dev_bdev.c        | 13 +------------
 8 files changed, 24 insertions(+), 116 deletions(-)

diff --git a/block/blk-flush.c b/block/blk-flush.c
index 331e627301ea..fb6f3c0ffa49 100644
--- a/block/blk-flush.c
+++ b/block/blk-flush.c
@@ -502,15 +502,6 @@ void blk_abort_flushes(struct request_queue *q)
 	}
 }
 
-static void bio_end_flush(struct bio *bio, int err)
-{
-	if (err)
-		clear_bit(BIO_UPTODATE, &bio->bi_flags);
-	if (bio->bi_private)
-		complete(bio->bi_private);
-	bio_put(bio);
-}
-
 /**
  * blkdev_issue_flush - queue a flush
  * @bdev:	blockdev to issue flush for
@@ -526,7 +517,6 @@ static void bio_end_flush(struct bio *bio, int err)
 int blkdev_issue_flush(struct block_device *bdev, gfp_t gfp_mask,
 		sector_t *error_sector)
 {
-	DECLARE_COMPLETION_ONSTACK(wait);
 	struct request_queue *q;
 	struct bio *bio;
 	int ret = 0;
@@ -548,13 +538,9 @@ int blkdev_issue_flush(struct block_device *bdev, gfp_t gfp_mask,
 		return -ENXIO;
 
 	bio = bio_alloc(gfp_mask, 0);
-	bio->bi_end_io = bio_end_flush;
 	bio->bi_bdev = bdev;
-	bio->bi_private = &wait;
 
-	bio_get(bio);
-	submit_bio(WRITE_FLUSH, bio);
-	wait_for_completion_io(&wait);
+	ret = submit_bio_wait(WRITE_FLUSH, bio);
 
 	/*
 	 * The driver must store the error location in ->bi_sector, if
@@ -564,9 +550,6 @@ int blkdev_issue_flush(struct block_device *bdev, gfp_t gfp_mask,
 	if (error_sector)
 		*error_sector = bio->bi_sector;
 
-	if (!bio_flagged(bio, BIO_UPTODATE))
-		ret = -EIO;
-
 	bio_put(bio);
 	return ret;
 }
diff --git a/drivers/md/md.c b/drivers/md/md.c
index b6b7a2866c9e..8700de376876 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -776,16 +776,10 @@ void md_super_wait(struct mddev *mddev)
 	finish_wait(&mddev->sb_wait, &wq);
 }
 
-static void bi_complete(struct bio *bio, int error)
-{
-	complete((struct completion*)bio->bi_private);
-}
-
 int sync_page_io(struct md_rdev *rdev, sector_t sector, int size,
 		 struct page *page, int rw, bool metadata_op)
 {
 	struct bio *bio = bio_alloc_mddev(GFP_NOIO, 1, rdev->mddev);
-	struct completion event;
 	int ret;
 
 	rw |= REQ_SYNC;
@@ -801,11 +795,7 @@ int sync_page_io(struct md_rdev *rdev, sector_t sector, int size,
 	else
 		bio->bi_sector = sector + rdev->data_offset;
 	bio_add_page(bio, page, size, 0);
-	init_completion(&event);
-	bio->bi_private = &event;
-	bio->bi_end_io = bi_complete;
-	submit_bio(rw, bio);
-	wait_for_completion(&event);
+	submit_bio_wait(rw, bio);
 
 	ret = test_bit(BIO_UPTODATE, &bio->bi_flags);
 	bio_put(bio);
diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index e0aab4456974..f85b1c409003 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -323,7 +323,6 @@ static void btrfsic_release_block_ctx(struct btrfsic_block_data_ctx *block_ctx);
 static int btrfsic_read_block(struct btrfsic_state *state,
 			      struct btrfsic_block_data_ctx *block_ctx);
 static void btrfsic_dump_database(struct btrfsic_state *state);
-static void btrfsic_complete_bio_end_io(struct bio *bio, int err);
 static int btrfsic_test_for_metadata(struct btrfsic_state *state,
 				     char **datav, unsigned int num_pages);
 static void btrfsic_process_written_block(struct btrfsic_dev_state *dev_state,
@@ -1677,7 +1676,6 @@ static int btrfsic_read_block(struct btrfsic_state *state,
 	for (i = 0; i < num_pages;) {
 		struct bio *bio;
 		unsigned int j;
-		DECLARE_COMPLETION_ONSTACK(complete);
 
 		bio = btrfs_io_bio_alloc(GFP_NOFS, num_pages - i);
 		if (!bio) {
@@ -1688,8 +1686,6 @@ static int btrfsic_read_block(struct btrfsic_state *state,
 		}
 		bio->bi_bdev = block_ctx->dev->bdev;
 		bio->bi_sector = dev_bytenr >> 9;
-		bio->bi_end_io = btrfsic_complete_bio_end_io;
-		bio->bi_private = &complete;
 
 		for (j = i; j < num_pages; j++) {
 			ret = bio_add_page(bio, block_ctx->pagev[j],
@@ -1702,12 +1698,7 @@ static int btrfsic_read_block(struct btrfsic_state *state,
 			       "btrfsic: error, failed to add a single page!\n");
 			return -1;
 		}
-		submit_bio(READ, bio);
-
-		/* this will also unplug the queue */
-		wait_for_completion(&complete);
-
-		if (!test_bit(BIO_UPTODATE, &bio->bi_flags)) {
+		if (submit_bio_wait(READ, bio)) {
 			printk(KERN_INFO
 			       "btrfsic: read error at logical %llu dev %s!\n",
 			       block_ctx->start, block_ctx->dev->name);
@@ -1730,11 +1721,6 @@ static int btrfsic_read_block(struct btrfsic_state *state,
 	return block_ctx->len;
 }
 
-static void btrfsic_complete_bio_end_io(struct bio *bio, int err)
-{
-	complete((struct completion *)bio->bi_private);
-}
-
 static void btrfsic_dump_database(struct btrfsic_state *state)
 {
 	struct list_head *elem_all;
@@ -2998,14 +2984,12 @@ int btrfsic_submit_bh(int rw, struct buffer_head *bh)
 	return submit_bh(rw, bh);
 }
 
-void btrfsic_submit_bio(int rw, struct bio *bio)
+static void __btrfsic_submit_bio(int rw, struct bio *bio)
 {
 	struct btrfsic_dev_state *dev_state;
 
-	if (!btrfsic_is_initialized) {
-		submit_bio(rw, bio);
+	if (!btrfsic_is_initialized)
 		return;
-	}
 
 	mutex_lock(&btrfsic_mutex);
 	/* since btrfsic_submit_bio() is also called before
@@ -3097,10 +3081,20 @@ void btrfsic_submit_bio(int rw, struct bio *bio)
 	}
 leave:
 	mutex_unlock(&btrfsic_mutex);
+}
 
+void btrfsic_submit_bio(int rw, struct bio *bio)
+{
+	__btrfsic_submit_bio(rw, bio);
 	submit_bio(rw, bio);
 }
 
+int btrfsic_submit_bio_wait(int rw, struct bio *bio)
+{
+	__btrfsic_submit_bio(rw, bio);
+	return submit_bio_wait(rw, bio);
+}
+
 int btrfsic_mount(struct btrfs_root *root,
 		  struct btrfs_fs_devices *fs_devices,
 		  int including_extent_data, u32 print_mask)
diff --git a/fs/btrfs/check-integrity.h b/fs/btrfs/check-integrity.h
index 8b59175cc502..13b8566c97ab 100644
--- a/fs/btrfs/check-integrity.h
+++ b/fs/btrfs/check-integrity.h
@@ -22,9 +22,11 @@
 #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY
 int btrfsic_submit_bh(int rw, struct buffer_head *bh);
 void btrfsic_submit_bio(int rw, struct bio *bio);
+int btrfsic_submit_bio_wait(int rw, struct bio *bio);
 #else
 #define btrfsic_submit_bh submit_bh
 #define btrfsic_submit_bio submit_bio
+#define btrfsic_submit_bio_wait submit_bio_wait
 #endif
 
 int btrfsic_mount(struct btrfs_root *root,
diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c
index 856bc2b2192c..014beaa9458c 100644
--- a/fs/btrfs/extent_io.c
+++ b/fs/btrfs/extent_io.c
@@ -1952,11 +1952,6 @@ static int free_io_failure(struct inode *inode, struct io_failure_record *rec,
 	return err;
 }
 
-static void repair_io_failure_callback(struct bio *bio, int err)
-{
-	complete(bio->bi_private);
-}
-
 /*
  * this bypasses the standard btrfs submit functions deliberately, as
  * the standard behavior is to write all copies in a raid setup. here we only
@@ -1973,7 +1968,6 @@ int repair_io_failure(struct btrfs_fs_info *fs_info, u64 start,
 {
 	struct bio *bio;
 	struct btrfs_device *dev;
-	DECLARE_COMPLETION_ONSTACK(compl);
 	u64 map_length = 0;
 	u64 sector;
 	struct btrfs_bio *bbio = NULL;
@@ -1989,8 +1983,6 @@ int repair_io_failure(struct btrfs_fs_info *fs_info, u64 start,
 	bio = btrfs_io_bio_alloc(GFP_NOFS, 1);
 	if (!bio)
 		return -EIO;
-	bio->bi_private = &compl;
-	bio->bi_end_io = repair_io_failure_callback;
 	bio->bi_size = 0;
 	map_length = length;
 
@@ -2011,10 +2003,8 @@ int repair_io_failure(struct btrfs_fs_info *fs_info, u64 start,
 	}
 	bio->bi_bdev = dev->bdev;
 	bio_add_page(bio, page, length, start - page_offset(page));
-	btrfsic_submit_bio(WRITE_SYNC, bio);
-	wait_for_completion(&compl);
 
-	if (!test_bit(BIO_UPTODATE, &bio->bi_flags)) {
+	if (btrfsic_submit_bio_wait(WRITE_SYNC, bio)) {
 		/* try to remap that extent elsewhere? */
 		bio_put(bio);
 		btrfs_dev_stat_inc_and_print(dev, BTRFS_DEV_STAT_WRITE_ERRS);
diff --git a/fs/btrfs/scrub.c b/fs/btrfs/scrub.c
index 2544805544f0..3214ebe593bd 100644
--- a/fs/btrfs/scrub.c
+++ b/fs/btrfs/scrub.c
@@ -208,7 +208,6 @@ static void scrub_recheck_block_checksum(struct btrfs_fs_info *fs_info,
 					 int is_metadata, int have_csum,
 					 const u8 *csum, u64 generation,
 					 u16 csum_size);
-static void scrub_complete_bio_end_io(struct bio *bio, int err);
 static int scrub_repair_block_from_good_copy(struct scrub_block *sblock_bad,
 					     struct scrub_block *sblock_good,
 					     int force_write);
@@ -1292,7 +1291,6 @@ static void scrub_recheck_block(struct btrfs_fs_info *fs_info,
 	for (page_num = 0; page_num < sblock->page_count; page_num++) {
 		struct bio *bio;
 		struct scrub_page *page = sblock->pagev[page_num];
-		DECLARE_COMPLETION_ONSTACK(complete);
 
 		if (page->dev->bdev == NULL) {
 			page->io_error = 1;
@@ -1309,18 +1307,11 @@ static void scrub_recheck_block(struct btrfs_fs_info *fs_info,
 		}
 		bio->bi_bdev = page->dev->bdev;
 		bio->bi_sector = page->physical >> 9;
-		bio->bi_end_io = scrub_complete_bio_end_io;
-		bio->bi_private = &complete;
 
 		bio_add_page(bio, page->page, PAGE_SIZE, 0);
-		btrfsic_submit_bio(READ, bio);
-
-		/* this will also unplug the queue */
-		wait_for_completion(&complete);
-
-		page->io_error = !test_bit(BIO_UPTODATE, &bio->bi_flags);
-		if (!test_bit(BIO_UPTODATE, &bio->bi_flags))
+		if (btrfsic_submit_bio_wait(READ, bio))
 			sblock->no_io_error_seen = 0;
+
 		bio_put(bio);
 	}
 
@@ -1389,11 +1380,6 @@ static void scrub_recheck_block_checksum(struct btrfs_fs_info *fs_info,
 		sblock->checksum_error = 1;
 }
 
-static void scrub_complete_bio_end_io(struct bio *bio, int err)
-{
-	complete((struct completion *)bio->bi_private);
-}
-
 static int scrub_repair_block_from_good_copy(struct scrub_block *sblock_bad,
 					     struct scrub_block *sblock_good,
 					     int force_write)
@@ -1428,7 +1414,6 @@ static int scrub_repair_page_from_good_copy(struct scrub_block *sblock_bad,
 	    sblock_bad->checksum_error || page_bad->io_error) {
 		struct bio *bio;
 		int ret;
-		DECLARE_COMPLETION_ONSTACK(complete);
 
 		if (!page_bad->dev->bdev) {
 			printk_ratelimited(KERN_WARNING
@@ -1441,19 +1426,14 @@ static int scrub_repair_page_from_good_copy(struct scrub_block *sblock_bad,
 			return -EIO;
 		bio->bi_bdev = page_bad->dev->bdev;
 		bio->bi_sector = page_bad->physical >> 9;
-		bio->bi_end_io = scrub_complete_bio_end_io;
-		bio->bi_private = &complete;
 
 		ret = bio_add_page(bio, page_good->page, PAGE_SIZE, 0);
 		if (PAGE_SIZE != ret) {
 			bio_put(bio);
 			return -EIO;
 		}
-		btrfsic_submit_bio(WRITE, bio);
 
-		/* this will also unplug the queue */
-		wait_for_completion(&complete);
-		if (!bio_flagged(bio, BIO_UPTODATE)) {
+		if (btrfsic_submit_bio_wait(WRITE, bio)) {
 			btrfs_dev_stat_inc_and_print(page_bad->dev,
 				BTRFS_DEV_STAT_WRITE_ERRS);
 			btrfs_dev_replace_stats_inc(
@@ -3373,7 +3353,6 @@ static int write_page_nocow(struct scrub_ctx *sctx,
 	struct bio *bio;
 	struct btrfs_device *dev;
 	int ret;
-	DECLARE_COMPLETION_ONSTACK(compl);
 
 	dev = sctx->wr_ctx.tgtdev;
 	if (!dev)
@@ -3390,8 +3369,6 @@ static int write_page_nocow(struct scrub_ctx *sctx,
 		spin_unlock(&sctx->stat_lock);
 		return -ENOMEM;
 	}
-	bio->bi_private = &compl;
-	bio->bi_end_io = scrub_complete_bio_end_io;
 	bio->bi_size = 0;
 	bio->bi_sector = physical_for_dev_replace >> 9;
 	bio->bi_bdev = dev->bdev;
@@ -3402,10 +3379,8 @@ leave_with_eio:
 		btrfs_dev_stat_inc_and_print(dev, BTRFS_DEV_STAT_WRITE_ERRS);
 		return -EIO;
 	}
-	btrfsic_submit_bio(WRITE_SYNC, bio);
-	wait_for_completion(&compl);
 
-	if (!test_bit(BIO_UPTODATE, &bio->bi_flags))
+	if (btrfsic_submit_bio_wait(WRITE_SYNC, bio))
 		goto leave_with_eio;
 
 	bio_put(bio);
diff --git a/fs/hfsplus/wrapper.c b/fs/hfsplus/wrapper.c
index b51a6079108d..e9a97a0d4314 100644
--- a/fs/hfsplus/wrapper.c
+++ b/fs/hfsplus/wrapper.c
@@ -24,13 +24,6 @@ struct hfsplus_wd {
 	u16 embed_count;
 };
 
-static void hfsplus_end_io_sync(struct bio *bio, int err)
-{
-	if (err)
-		clear_bit(BIO_UPTODATE, &bio->bi_flags);
-	complete(bio->bi_private);
-}
-
 /*
  * hfsplus_submit_bio - Perfrom block I/O
  * @sb: super block of volume for I/O
@@ -53,7 +46,6 @@ static void hfsplus_end_io_sync(struct bio *bio, int err)
 int hfsplus_submit_bio(struct super_block *sb, sector_t sector,
 		void *buf, void **data, int rw)
 {
-	DECLARE_COMPLETION_ONSTACK(wait);
 	struct bio *bio;
 	int ret = 0;
 	u64 io_size;
@@ -73,8 +65,6 @@ int hfsplus_submit_bio(struct super_block *sb, sector_t sector,
 	bio = bio_alloc(GFP_NOIO, 1);
 	bio->bi_sector = sector;
 	bio->bi_bdev = sb->s_bdev;
-	bio->bi_end_io = hfsplus_end_io_sync;
-	bio->bi_private = &wait;
 
 	if (!(rw & WRITE) && data)
 		*data = (u8 *)buf + offset;
@@ -93,12 +83,7 @@ int hfsplus_submit_bio(struct super_block *sb, sector_t sector,
 		buf = (u8 *)buf + len;
 	}
 
-	submit_bio(rw, bio);
-	wait_for_completion(&wait);
-
-	if (!bio_flagged(bio, BIO_UPTODATE))
-		ret = -EIO;
-
+	ret = submit_bio_wait(rw, bio);
 out:
 	bio_put(bio);
 	return ret < 0 ? ret : 0;
diff --git a/fs/logfs/dev_bdev.c b/fs/logfs/dev_bdev.c
index 550475ca6a0e..0f95f0d0b313 100644
--- a/fs/logfs/dev_bdev.c
+++ b/fs/logfs/dev_bdev.c
@@ -14,16 +14,10 @@
 
 #define PAGE_OFS(ofs) ((ofs) & (PAGE_SIZE-1))
 
-static void request_complete(struct bio *bio, int err)
-{
-	complete((struct completion *)bio->bi_private);
-}
-
 static int sync_request(struct page *page, struct block_device *bdev, int rw)
 {
 	struct bio bio;
 	struct bio_vec bio_vec;
-	struct completion complete;
 
 	bio_init(&bio);
 	bio.bi_max_vecs = 1;
@@ -35,13 +29,8 @@ static int sync_request(struct page *page, struct block_device *bdev, int rw)
 	bio.bi_size = PAGE_SIZE;
 	bio.bi_bdev = bdev;
 	bio.bi_sector = page->index * (PAGE_SIZE >> 9);
-	init_completion(&complete);
-	bio.bi_private = &complete;
-	bio.bi_end_io = request_complete;
 
-	submit_bio(rw, &bio);
-	wait_for_completion(&complete);
-	return test_bit(BIO_UPTODATE, &bio.bi_flags) ? 0 : -EIO;
+	return submit_bio_wait(rw, &bio);
 }
 
 static int bdev_readpage(void *_sb, struct page *page)
-- 
cgit 


From 924dd50bc4ad26612efbc75f7e60492c5faaa868 Mon Sep 17 00:00:00 2001
From: Michael Neuling <mikey@neuling.org>
Date: Thu, 21 Nov 2013 14:59:07 +1100
Subject: powerpc: Fix error when cross building TAGS & cscope
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Currently if I cross build TAGS or cscope from x86 I get this:
  % make ARCH=powerpc TAGS
  gcc-4.8.real: error: unrecognized command line option ‘-mbig-endian’
  GEN     TAGS
  %

I'm not setting CROSS_COMPILE= as logically I shouldn't need to and I
haven't needed to in the past when building TAGS or cscope.  Also, the
above completess correct as the error is not fatal to the build.

This was caused by:
    commit d72b08017161ab385d4ae080ea415c9eb7ceef83
    Author: Ian Munsie <imunsie@au1.ibm.com>
    powerpc: Add ability to build little endian kernels

The below fixes this by testing for the -mbig-endian option before
adding it.

I've not done the same thing in the little endian case as if
-mlittle-endian doesn't exist, we probably want to fail quickly as you
probably have an old big endian compiler.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index a284d7fbc97f..0f4344e6fbca 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -75,8 +75,10 @@ LDEMULATION	:= lppc
 GNUTARGET	:= powerpcle
 MULTIPLEWORD	:= -mno-multiple
 else
+ifeq ($(call cc-option-yn,-mbig-endian),y)
 override CC	+= -mbig-endian
 override AS	+= -mbig-endian
+endif
 override LD	+= -EB
 LDEMULATION	:= ppc
 GNUTARGET	:= powerpc
-- 
cgit 


From 962bc221c3b1d63a461f8065bfb37122ce660119 Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Thu, 21 Nov 2013 16:33:55 +1100
Subject: powerpc: allyesconfig should not select CONFIG_CPU_LITTLE_ENDIAN

Stephen reported a failure in an allyesconfig build.
CONFIG_CPU_LITTLE_ENDIAN=y gets set but his toolchain is not
new enough to support little endian. We really want to
default to a big endian build; Ben suggested using a choice
which defaults to CPU_BIG_ENDIAN.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/platforms/Kconfig.cputype | 20 +++++++++++++++++---
 1 file changed, 17 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 132f8726a257..bca2465a9c34 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -404,13 +404,27 @@ config PPC_DOORBELL
 
 endmenu
 
-config CPU_LITTLE_ENDIAN
-	bool "Build little endian kernel"
-	default n
+choice
+	prompt "Endianness selection"
+	default CPU_BIG_ENDIAN
 	help
 	  This option selects whether a big endian or little endian kernel will
 	  be built.
 
+config CPU_BIG_ENDIAN
+	bool "Build big endian kernel"
+	help
+	  Build a big endian kernel.
+
+	  If unsure, select this option.
+
+config CPU_LITTLE_ENDIAN
+	bool "Build little endian kernel"
+	help
+	  Build a little endian kernel.
+
 	  Note that if cross compiling a little endian kernel,
 	  CROSS_COMPILE must point to a toolchain capable of targeting
 	  little endian powerpc.
+
+endchoice
-- 
cgit 


From 8ff812719ac73ef9428b788e210221c8d87b2a8c Mon Sep 17 00:00:00 2001
From: Hari Bathini <hbathini@linux.vnet.ibm.com>
Date: Fri, 15 Nov 2013 23:01:32 +0530
Subject: powerpc/kdump: Adding symbols in vmcoreinfo to facilitate dump
 filtering

When CONFIG_SPARSEMEM_VMEMMAP option is used in kernel, makedumpfile fails
to filter vmcore dump as it fails to do vmemmap translations. So far
dump filtering on ppc64 never had to deal with vmemmap addresses seperately
as vmemmap regions where mapped in zone normal. But with the inclusion of
CONFIG_SPARSEMEM_VMEMMAP config option in kernel, this vmemmap address
translation support becomes necessary for dump filtering. For vmemmap adress
translation, few kernel symbols are needed by dump filtering tool. This patch
adds those symbols to vmcoreinfo, which a dump filtering tool can use for
filtering the kernel dump. Tested this changes successfully with makedumpfile
tool that supports vmemmap to physical address translation outside zone normal.

[ Removed unneeded #ifdef as suggested by Michael Ellerman --BenH ]

Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/include/asm/pgalloc-64.h |  1 +
 arch/powerpc/kernel/machine_kexec.c   | 12 ++++++++++++
 2 files changed, 13 insertions(+)

diff --git a/arch/powerpc/include/asm/pgalloc-64.h b/arch/powerpc/include/asm/pgalloc-64.h
index 16cb92d215d2..694012877bf7 100644
--- a/arch/powerpc/include/asm/pgalloc-64.h
+++ b/arch/powerpc/include/asm/pgalloc-64.h
@@ -16,6 +16,7 @@ struct vmemmap_backing {
 	unsigned long phys;
 	unsigned long virt_addr;
 };
+extern struct vmemmap_backing *vmemmap_list;
 
 /*
  * Functions that deal with pagetables that could be at any level of
diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c
index e1ec57e87b3b..88a7fb458dfd 100644
--- a/arch/powerpc/kernel/machine_kexec.c
+++ b/arch/powerpc/kernel/machine_kexec.c
@@ -18,6 +18,7 @@
 #include <linux/ftrace.h>
 
 #include <asm/machdep.h>
+#include <asm/pgalloc.h>
 #include <asm/prom.h>
 #include <asm/sections.h>
 
@@ -75,6 +76,17 @@ void arch_crash_save_vmcoreinfo(void)
 #ifndef CONFIG_NEED_MULTIPLE_NODES
 	VMCOREINFO_SYMBOL(contig_page_data);
 #endif
+#if defined(CONFIG_PPC64) && defined(CONFIG_SPARSEMEM_VMEMMAP)
+	VMCOREINFO_SYMBOL(vmemmap_list);
+	VMCOREINFO_SYMBOL(mmu_vmemmap_psize);
+	VMCOREINFO_SYMBOL(mmu_psize_defs);
+	VMCOREINFO_STRUCT_SIZE(vmemmap_backing);
+	VMCOREINFO_OFFSET(vmemmap_backing, list);
+	VMCOREINFO_OFFSET(vmemmap_backing, phys);
+	VMCOREINFO_OFFSET(vmemmap_backing, virt_addr);
+	VMCOREINFO_STRUCT_SIZE(mmu_psize_def);
+	VMCOREINFO_OFFSET(mmu_psize_def, shift);
+#endif
 }
 
 /*
-- 
cgit 


From ec67ad82814bee92251fd963bf01c7a173856555 Mon Sep 17 00:00:00 2001
From: Michael Neuling <mikey@neuling.org>
Date: Mon, 25 Nov 2013 11:12:20 +1100
Subject: powerpc/signals: Improved mark VSX not saved with small contexts fix

In a recent patch:
  commit c13f20ac48328b05cd3b8c19e31ed6c132b44b42
  Author: Michael Neuling <mikey@neuling.org>
  powerpc/signals: Mark VSX not saved with small contexts

We fixed an issue but an improved solution was later discussed after the patch
was merged.

Firstly, this patch doesn't handle the 64bit signals case, which could also hit
this issue (but has never been reported).

Secondly, the original patch isn't clear what MSR VSX should be set to.  The
new approach below always clears the MSR VSX bit (to indicate no VSX is in the
context) and sets it only in the specific case where VSX is available (ie. when
VSX has been used and the signal context passed has space to provide the
state).

This reverts the original patch and replaces it with the improved solution.  It
also adds a 64 bit version.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Cc: stable@vger.kernel.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/signal_32.c | 16 +++++++---------
 arch/powerpc/kernel/signal_64.c |  6 ++++++
 2 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 1844298f5ea4..68027bfa5f8e 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -445,6 +445,12 @@ static int save_user_regs(struct pt_regs *regs, struct mcontext __user *frame,
 #endif /* CONFIG_ALTIVEC */
 	if (copy_fpr_to_user(&frame->mc_fregs, current))
 		return 1;
+
+	/*
+	 * Clear the MSR VSX bit to indicate there is no valid state attached
+	 * to this context, except in the specific case below where we set it.
+	 */
+	msr &= ~MSR_VSX;
 #ifdef CONFIG_VSX
 	/*
 	 * Copy VSR 0-31 upper half from thread_struct to local
@@ -457,15 +463,7 @@ static int save_user_regs(struct pt_regs *regs, struct mcontext __user *frame,
 		if (copy_vsx_to_user(&frame->mc_vsregs, current))
 			return 1;
 		msr |= MSR_VSX;
-	} else if (!ctx_has_vsx_region)
-		/*
-		 * With a small context structure we can't hold the VSX
-		 * registers, hence clear the MSR value to indicate the state
-		 * was not saved.
-		 */
-		msr &= ~MSR_VSX;
-
-
+	}
 #endif /* CONFIG_VSX */
 #ifdef CONFIG_SPE
 	/* save spe registers */
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index e66f67b8b9e6..42991045349f 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -122,6 +122,12 @@ static long setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
 	flush_fp_to_thread(current);
 	/* copy fpr regs and fpscr */
 	err |= copy_fpr_to_user(&sc->fp_regs, current);
+
+	/*
+	 * Clear the MSR VSX bit to indicate there is no valid state attached
+	 * to this context, except in the specific case below where we set it.
+	 */
+	msr &= ~MSR_VSX;
 #ifdef CONFIG_VSX
 	/*
 	 * Copy VSX low doubleword to local buffer for formatting,
-- 
cgit 


From e0513d9ea8dd2a7b21b699ada8d59d8afbb8b5b7 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Thu, 24 Jan 2013 12:14:52 +0800
Subject: arch/powerpc/kernel: Use %12.12s instead of %12s to avoid memory
 overflow

for tmp_part->header.name:
    it is "Terminating null required only for names < 12 chars".
    so need to limit the %.12s for it in printk

  additional info:

    %12s  limit the width, not for the original string output length
          if name length is more than 12, it still can be fully displayed.
          if name length is less than 12, the ' ' will be filled before name.

    %.12s truly limit the original string output length (precision)

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 arch/powerpc/kernel/nvram_64.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
index fd82c289ab1c..28b898e68185 100644
--- a/arch/powerpc/kernel/nvram_64.c
+++ b/arch/powerpc/kernel/nvram_64.c
@@ -210,7 +210,7 @@ static void __init nvram_print_partitions(char * label)
 	printk(KERN_WARNING "--------%s---------\n", label);
 	printk(KERN_WARNING "indx\t\tsig\tchks\tlen\tname\n");
 	list_for_each_entry(tmp_part, &nvram_partitions, partition) {
-		printk(KERN_WARNING "%4d    \t%02x\t%02x\t%d\t%12s\n",
+		printk(KERN_WARNING "%4d    \t%02x\t%02x\t%d\t%12.12s\n",
 		       tmp_part->index, tmp_part->header.signature,
 		       tmp_part->header.checksum, tmp_part->header.length,
 		       tmp_part->header.name);
-- 
cgit 


From 2e86230fcb918172751b4aadeb5782409e769988 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Thu, 31 Oct 2013 11:23:46 +0800
Subject: gpio: tb10x: Set output value before setting direction to output

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Acked-by: Christian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-tb10x.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpio/gpio-tb10x.c b/drivers/gpio/gpio-tb10x.c
index 0502b9a041a5..da071ddbad99 100644
--- a/drivers/gpio/gpio-tb10x.c
+++ b/drivers/gpio/gpio-tb10x.c
@@ -132,6 +132,7 @@ static int tb10x_gpio_direction_out(struct gpio_chip *chip,
 	int mask = BIT(offset);
 	int val = TB10X_GPIO_DIR_OUT << offset;
 
+	tb10x_gpio_set(chip, offset, value);
 	tb10x_set_bits(tb10x_gpio, OFFSET_TO_REG_DDR, mask, val);
 
 	return 0;
-- 
cgit 


From fd8e198cfcaa8abcc7f7525619d447f9a805e86e Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Sat, 16 Nov 2013 21:34:21 +0900
Subject: Documentation: gpiolib: document new interface

gpiolib now exports a new descriptor-based interface which deprecates
the older integer-based one. This patch documents this new interface and
also takes the opportunity to brush-up the GPIO documentation a little
bit.

The new descriptor-based interface follows the same consumer/driver
model as many other kernel subsystems (e.g. clock, regulator), so its
documentation has similarly been splitted into different files.

The content of the former documentation has been reused whenever it
made sense; however, some of its content did not apply to the new
interface anymore and have this been removed. Likewise, new sections
like the mapping of GPIOs to devices have been written from scratch.

The deprecated legacy-based documentation is still available, untouched,
under Documentation/gpio/gpio-legacy.txt.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 Documentation/gpio.txt             | 775 -------------------------------------
 Documentation/gpio/board.txt       | 115 ++++++
 Documentation/gpio/consumer.txt    | 197 ++++++++++
 Documentation/gpio/driver.txt      |  75 ++++
 Documentation/gpio/gpio-legacy.txt | 775 +++++++++++++++++++++++++++++++++++++
 Documentation/gpio/gpio.txt        | 119 ++++++
 Documentation/gpio/sysfs.txt       | 155 ++++++++
 7 files changed, 1436 insertions(+), 775 deletions(-)
 delete mode 100644 Documentation/gpio.txt
 create mode 100644 Documentation/gpio/board.txt
 create mode 100644 Documentation/gpio/consumer.txt
 create mode 100644 Documentation/gpio/driver.txt
 create mode 100644 Documentation/gpio/gpio-legacy.txt
 create mode 100644 Documentation/gpio/gpio.txt
 create mode 100644 Documentation/gpio/sysfs.txt

diff --git a/Documentation/gpio.txt b/Documentation/gpio.txt
deleted file mode 100644
index 6f83fa965b4b..000000000000
--- a/Documentation/gpio.txt
+++ /dev/null
@@ -1,775 +0,0 @@
-GPIO Interfaces
-
-This provides an overview of GPIO access conventions on Linux.
-
-These calls use the gpio_* naming prefix.  No other calls should use that
-prefix, or the related __gpio_* prefix.
-
-
-What is a GPIO?
-===============
-A "General Purpose Input/Output" (GPIO) is a flexible software-controlled
-digital signal.  They are provided from many kinds of chip, and are familiar
-to Linux developers working with embedded and custom hardware.  Each GPIO
-represents a bit connected to a particular pin, or "ball" on Ball Grid Array
-(BGA) packages.  Board schematics show which external hardware connects to
-which GPIOs.  Drivers can be written generically, so that board setup code
-passes such pin configuration data to drivers.
-
-System-on-Chip (SOC) processors heavily rely on GPIOs.  In some cases, every
-non-dedicated pin can be configured as a GPIO; and most chips have at least
-several dozen of them.  Programmable logic devices (like FPGAs) can easily
-provide GPIOs; multifunction chips like power managers, and audio codecs
-often have a few such pins to help with pin scarcity on SOCs; and there are
-also "GPIO Expander" chips that connect using the I2C or SPI serial busses.
-Most PC southbridges have a few dozen GPIO-capable pins (with only the BIOS
-firmware knowing how they're used).
-
-The exact capabilities of GPIOs vary between systems.  Common options:
-
-  - Output values are writable (high=1, low=0).  Some chips also have
-    options about how that value is driven, so that for example only one
-    value might be driven ... supporting "wire-OR" and similar schemes
-    for the other value (notably, "open drain" signaling).
-
-  - Input values are likewise readable (1, 0).  Some chips support readback
-    of pins configured as "output", which is very useful in such "wire-OR"
-    cases (to support bidirectional signaling).  GPIO controllers may have
-    input de-glitch/debounce logic, sometimes with software controls.
-
-  - Inputs can often be used as IRQ signals, often edge triggered but
-    sometimes level triggered.  Such IRQs may be configurable as system
-    wakeup events, to wake the system from a low power state.
-
-  - Usually a GPIO will be configurable as either input or output, as needed
-    by different product boards; single direction ones exist too.
-
-  - Most GPIOs can be accessed while holding spinlocks, but those accessed
-    through a serial bus normally can't.  Some systems support both types.
-
-On a given board each GPIO is used for one specific purpose like monitoring
-MMC/SD card insertion/removal, detecting card writeprotect status, driving
-a LED, configuring a transceiver, bitbanging a serial bus, poking a hardware
-watchdog, sensing a switch, and so on.
-
-
-GPIO conventions
-================
-Note that this is called a "convention" because you don't need to do it this
-way, and it's no crime if you don't.  There **are** cases where portability
-is not the main issue; GPIOs are often used for the kind of board-specific
-glue logic that may even change between board revisions, and can't ever be
-used on a board that's wired differently.  Only least-common-denominator
-functionality can be very portable.  Other features are platform-specific,
-and that can be critical for glue logic.
-
-Plus, this doesn't require any implementation framework, just an interface.
-One platform might implement it as simple inline functions accessing chip
-registers; another might implement it by delegating through abstractions
-used for several very different kinds of GPIO controller.  (There is some
-optional code supporting such an implementation strategy, described later
-in this document, but drivers acting as clients to the GPIO interface must
-not care how it's implemented.)
-
-That said, if the convention is supported on their platform, drivers should
-use it when possible.  Platforms must select ARCH_REQUIRE_GPIOLIB or
-ARCH_WANT_OPTIONAL_GPIOLIB in their Kconfig.  Drivers that can't work without
-standard GPIO calls should have Kconfig entries which depend on GPIOLIB.  The
-GPIO calls are available, either as "real code" or as optimized-away stubs,
-when drivers use the include file:
-
-	#include <linux/gpio.h>
-
-If you stick to this convention then it'll be easier for other developers to
-see what your code is doing, and help maintain it.
-
-Note that these operations include I/O barriers on platforms which need to
-use them; drivers don't need to add them explicitly.
-
-
-Identifying GPIOs
------------------
-GPIOs are identified by unsigned integers in the range 0..MAX_INT.  That
-reserves "negative" numbers for other purposes like marking signals as
-"not available on this board", or indicating faults.  Code that doesn't
-touch the underlying hardware treats these integers as opaque cookies.
-
-Platforms define how they use those integers, and usually #define symbols
-for the GPIO lines so that board-specific setup code directly corresponds
-to the relevant schematics.  In contrast, drivers should only use GPIO
-numbers passed to them from that setup code, using platform_data to hold
-board-specific pin configuration data (along with other board specific
-data they need).  That avoids portability problems.
-
-So for example one platform uses numbers 32-159 for GPIOs; while another
-uses numbers 0..63 with one set of GPIO controllers, 64-79 with another
-type of GPIO controller, and on one particular board 80-95 with an FPGA.
-The numbers need not be contiguous; either of those platforms could also
-use numbers 2000-2063 to identify GPIOs in a bank of I2C GPIO expanders.
-
-If you want to initialize a structure with an invalid GPIO number, use
-some negative number (perhaps "-EINVAL"); that will never be valid.  To
-test if such number from such a structure could reference a GPIO, you
-may use this predicate:
-
-	int gpio_is_valid(int number);
-
-A number that's not valid will be rejected by calls which may request
-or free GPIOs (see below).  Other numbers may also be rejected; for
-example, a number might be valid but temporarily unused on a given board.
-
-Whether a platform supports multiple GPIO controllers is a platform-specific
-implementation issue, as are whether that support can leave "holes" in the space
-of GPIO numbers, and whether new controllers can be added at runtime.  Such issues
-can affect things including whether adjacent GPIO numbers are both valid.
-
-Using GPIOs
------------
-The first thing a system should do with a GPIO is allocate it, using
-the gpio_request() call; see later.
-
-One of the next things to do with a GPIO, often in board setup code when
-setting up a platform_device using the GPIO, is mark its direction:
-
-	/* set as input or output, returning 0 or negative errno */
-	int gpio_direction_input(unsigned gpio);
-	int gpio_direction_output(unsigned gpio, int value);
-
-The return value is zero for success, else a negative errno.  It should
-be checked, since the get/set calls don't have error returns and since
-misconfiguration is possible.  You should normally issue these calls from
-a task context.  However, for spinlock-safe GPIOs it's OK to use them
-before tasking is enabled, as part of early board setup.
-
-For output GPIOs, the value provided becomes the initial output value.
-This helps avoid signal glitching during system startup.
-
-For compatibility with legacy interfaces to GPIOs, setting the direction
-of a GPIO implicitly requests that GPIO (see below) if it has not been
-requested already.  That compatibility is being removed from the optional
-gpiolib framework.
-
-Setting the direction can fail if the GPIO number is invalid, or when
-that particular GPIO can't be used in that mode.  It's generally a bad
-idea to rely on boot firmware to have set the direction correctly, since
-it probably wasn't validated to do more than boot Linux.  (Similarly,
-that board setup code probably needs to multiplex that pin as a GPIO,
-and configure pullups/pulldowns appropriately.)
-
-
-Spinlock-Safe GPIO access
--------------------------
-Most GPIO controllers can be accessed with memory read/write instructions.
-Those don't need to sleep, and can safely be done from inside hard
-(nonthreaded) IRQ handlers and similar contexts.
-
-Use the following calls to access such GPIOs,
-for which gpio_cansleep() will always return false (see below):
-
-	/* GPIO INPUT:  return zero or nonzero */
-	int gpio_get_value(unsigned gpio);
-
-	/* GPIO OUTPUT */
-	void gpio_set_value(unsigned gpio, int value);
-
-The values are boolean, zero for low, nonzero for high.  When reading the
-value of an output pin, the value returned should be what's seen on the
-pin ... that won't always match the specified output value, because of
-issues including open-drain signaling and output latencies.
-
-The get/set calls have no error returns because "invalid GPIO" should have
-been reported earlier from gpio_direction_*().  However, note that not all
-platforms can read the value of output pins; those that can't should always
-return zero.  Also, using these calls for GPIOs that can't safely be accessed
-without sleeping (see below) is an error.
-
-Platform-specific implementations are encouraged to optimize the two
-calls to access the GPIO value in cases where the GPIO number (and for
-output, value) are constant.  It's normal for them to need only a couple
-of instructions in such cases (reading or writing a hardware register),
-and not to need spinlocks.  Such optimized calls can make bitbanging
-applications a lot more efficient (in both space and time) than spending
-dozens of instructions on subroutine calls.
-
-
-GPIO access that may sleep
---------------------------
-Some GPIO controllers must be accessed using message based busses like I2C
-or SPI.  Commands to read or write those GPIO values require waiting to
-get to the head of a queue to transmit a command and get its response.
-This requires sleeping, which can't be done from inside IRQ handlers.
-
-Platforms that support this type of GPIO distinguish them from other GPIOs
-by returning nonzero from this call (which requires a valid GPIO number,
-which should have been previously allocated with gpio_request):
-
-	int gpio_cansleep(unsigned gpio);
-
-To access such GPIOs, a different set of accessors is defined:
-
-	/* GPIO INPUT:  return zero or nonzero, might sleep */
-	int gpio_get_value_cansleep(unsigned gpio);
-
-	/* GPIO OUTPUT, might sleep */
-	void gpio_set_value_cansleep(unsigned gpio, int value);
-
-
-Accessing such GPIOs requires a context which may sleep,  for example
-a threaded IRQ handler, and those accessors must be used instead of
-spinlock-safe accessors without the cansleep() name suffix.
-
-Other than the fact that these accessors might sleep, and will work
-on GPIOs that can't be accessed from hardIRQ handlers, these calls act
-the same as the spinlock-safe calls.
-
-  ** IN ADDITION ** calls to setup and configure such GPIOs must be made
-from contexts which may sleep, since they may need to access the GPIO
-controller chip too:  (These setup calls are usually made from board
-setup or driver probe/teardown code, so this is an easy constraint.)
-
-	gpio_direction_input()
-	gpio_direction_output()
-	gpio_request()
-
-## 	gpio_request_one()
-##	gpio_request_array()
-## 	gpio_free_array()
-
-	gpio_free()
-	gpio_set_debounce()
-
-
-
-Claiming and Releasing GPIOs
-----------------------------
-To help catch system configuration errors, two calls are defined.
-
-	/* request GPIO, returning 0 or negative errno.
-	 * non-null labels may be useful for diagnostics.
-	 */
-	int gpio_request(unsigned gpio, const char *label);
-
-	/* release previously-claimed GPIO */
-	void gpio_free(unsigned gpio);
-
-Passing invalid GPIO numbers to gpio_request() will fail, as will requesting
-GPIOs that have already been claimed with that call.  The return value of
-gpio_request() must be checked.  You should normally issue these calls from
-a task context.  However, for spinlock-safe GPIOs it's OK to request GPIOs
-before tasking is enabled, as part of early board setup.
-
-These calls serve two basic purposes.  One is marking the signals which
-are actually in use as GPIOs, for better diagnostics; systems may have
-several hundred potential GPIOs, but often only a dozen are used on any
-given board.  Another is to catch conflicts, identifying errors when
-(a) two or more drivers wrongly think they have exclusive use of that
-signal, or (b) something wrongly believes it's safe to remove drivers
-needed to manage a signal that's in active use.  That is, requesting a
-GPIO can serve as a kind of lock.
-
-Some platforms may also use knowledge about what GPIOs are active for
-power management, such as by powering down unused chip sectors and, more
-easily, gating off unused clocks.
-
-For GPIOs that use pins known to the pinctrl subsystem, that subsystem should
-be informed of their use; a gpiolib driver's .request() operation may call
-pinctrl_request_gpio(), and a gpiolib driver's .free() operation may call
-pinctrl_free_gpio(). The pinctrl subsystem allows a pinctrl_request_gpio()
-to succeed concurrently with a pin or pingroup being "owned" by a device for
-pin multiplexing.
-
-Any programming of pin multiplexing hardware that is needed to route the
-GPIO signal to the appropriate pin should occur within a GPIO driver's
-.direction_input() or .direction_output() operations, and occur after any
-setup of an output GPIO's value. This allows a glitch-free migration from a
-pin's special function to GPIO. This is sometimes required when using a GPIO
-to implement a workaround on signals typically driven by a non-GPIO HW block.
-
-Some platforms allow some or all GPIO signals to be routed to different pins.
-Similarly, other aspects of the GPIO or pin may need to be configured, such as
-pullup/pulldown. Platform software should arrange that any such details are
-configured prior to gpio_request() being called for those GPIOs, e.g. using
-the pinctrl subsystem's mapping table, so that GPIO users need not be aware
-of these details.
-
-Also note that it's your responsibility to have stopped using a GPIO
-before you free it.
-
-Considering in most cases GPIOs are actually configured right after they
-are claimed, three additional calls are defined:
-
-	/* request a single GPIO, with initial configuration specified by
-	 * 'flags', identical to gpio_request() wrt other arguments and
-	 * return value
-	 */
-	int gpio_request_one(unsigned gpio, unsigned long flags, const char *label);
-
-	/* request multiple GPIOs in a single call
-	 */
-	int gpio_request_array(struct gpio *array, size_t num);
-
-	/* release multiple GPIOs in a single call
-	 */
-	void gpio_free_array(struct gpio *array, size_t num);
-
-where 'flags' is currently defined to specify the following properties:
-
-	* GPIOF_DIR_IN		- to configure direction as input
-	* GPIOF_DIR_OUT		- to configure direction as output
-
-	* GPIOF_INIT_LOW	- as output, set initial level to LOW
-	* GPIOF_INIT_HIGH	- as output, set initial level to HIGH
-	* GPIOF_OPEN_DRAIN	- gpio pin is open drain type.
-	* GPIOF_OPEN_SOURCE	- gpio pin is open source type.
-
-	* GPIOF_EXPORT_DIR_FIXED	- export gpio to sysfs, keep direction
-	* GPIOF_EXPORT_DIR_CHANGEABLE	- also export, allow changing direction
-
-since GPIOF_INIT_* are only valid when configured as output, so group valid
-combinations as:
-
-	* GPIOF_IN		- configure as input
-	* GPIOF_OUT_INIT_LOW	- configured as output, initial level LOW
-	* GPIOF_OUT_INIT_HIGH	- configured as output, initial level HIGH
-
-When setting the flag as GPIOF_OPEN_DRAIN then it will assume that pins is
-open drain type. Such pins will not be driven to 1 in output mode. It is
-require to connect pull-up on such pins. By enabling this flag, gpio lib will
-make the direction to input when it is asked to set value of 1 in output mode
-to make the pin HIGH. The pin is make to LOW by driving value 0 in output mode.
-
-When setting the flag as GPIOF_OPEN_SOURCE then it will assume that pins is
-open source type. Such pins will not be driven to 0 in output mode. It is
-require to connect pull-down on such pin. By enabling this flag, gpio lib will
-make the direction to input when it is asked to set value of 0 in output mode
-to make the pin LOW. The pin is make to HIGH by driving value 1 in output mode.
-
-In the future, these flags can be extended to support more properties.
-
-Further more, to ease the claim/release of multiple GPIOs, 'struct gpio' is
-introduced to encapsulate all three fields as:
-
-	struct gpio {
-		unsigned	gpio;
-		unsigned long	flags;
-		const char	*label;
-	};
-
-A typical example of usage:
-
-	static struct gpio leds_gpios[] = {
-		{ 32, GPIOF_OUT_INIT_HIGH, "Power LED" }, /* default to ON */
-		{ 33, GPIOF_OUT_INIT_LOW,  "Green LED" }, /* default to OFF */
-		{ 34, GPIOF_OUT_INIT_LOW,  "Red LED"   }, /* default to OFF */
-		{ 35, GPIOF_OUT_INIT_LOW,  "Blue LED"  }, /* default to OFF */
-		{ ... },
-	};
-
-	err = gpio_request_one(31, GPIOF_IN, "Reset Button");
-	if (err)
-		...
-
-	err = gpio_request_array(leds_gpios, ARRAY_SIZE(leds_gpios));
-	if (err)
-		...
-
-	gpio_free_array(leds_gpios, ARRAY_SIZE(leds_gpios));
-
-
-GPIOs mapped to IRQs
---------------------
-GPIO numbers are unsigned integers; so are IRQ numbers.  These make up
-two logically distinct namespaces (GPIO 0 need not use IRQ 0).  You can
-map between them using calls like:
-
-	/* map GPIO numbers to IRQ numbers */
-	int gpio_to_irq(unsigned gpio);
-
-	/* map IRQ numbers to GPIO numbers (avoid using this) */
-	int irq_to_gpio(unsigned irq);
-
-Those return either the corresponding number in the other namespace, or
-else a negative errno code if the mapping can't be done.  (For example,
-some GPIOs can't be used as IRQs.)  It is an unchecked error to use a GPIO
-number that wasn't set up as an input using gpio_direction_input(), or
-to use an IRQ number that didn't originally come from gpio_to_irq().
-
-These two mapping calls are expected to cost on the order of a single
-addition or subtraction.  They're not allowed to sleep.
-
-Non-error values returned from gpio_to_irq() can be passed to request_irq()
-or free_irq().  They will often be stored into IRQ resources for platform
-devices, by the board-specific initialization code.  Note that IRQ trigger
-options are part of the IRQ interface, e.g. IRQF_TRIGGER_FALLING, as are
-system wakeup capabilities.
-
-Non-error values returned from irq_to_gpio() would most commonly be used
-with gpio_get_value(), for example to initialize or update driver state
-when the IRQ is edge-triggered.  Note that some platforms don't support
-this reverse mapping, so you should avoid using it.
-
-
-Emulating Open Drain Signals
-----------------------------
-Sometimes shared signals need to use "open drain" signaling, where only the
-low signal level is actually driven.  (That term applies to CMOS transistors;
-"open collector" is used for TTL.)  A pullup resistor causes the high signal
-level.  This is sometimes called a "wire-AND"; or more practically, from the
-negative logic (low=true) perspective this is a "wire-OR".
-
-One common example of an open drain signal is a shared active-low IRQ line.
-Also, bidirectional data bus signals sometimes use open drain signals.
-
-Some GPIO controllers directly support open drain outputs; many don't.  When
-you need open drain signaling but your hardware doesn't directly support it,
-there's a common idiom you can use to emulate it with any GPIO pin that can
-be used as either an input or an output:
-
- LOW:	gpio_direction_output(gpio, 0) ... this drives the signal
-	and overrides the pullup.
-
- HIGH:	gpio_direction_input(gpio) ... this turns off the output,
-	so the pullup (or some other device) controls the signal.
-
-If you are "driving" the signal high but gpio_get_value(gpio) reports a low
-value (after the appropriate rise time passes), you know some other component
-is driving the shared signal low.  That's not necessarily an error.  As one
-common example, that's how I2C clocks are stretched:  a slave that needs a
-slower clock delays the rising edge of SCK, and the I2C master adjusts its
-signaling rate accordingly.
-
-
-GPIO controllers and the pinctrl subsystem
-------------------------------------------
-
-A GPIO controller on a SOC might be tightly coupled with the pinctrl
-subsystem, in the sense that the pins can be used by other functions
-together with an optional gpio feature. We have already covered the
-case where e.g. a GPIO controller need to reserve a pin or set the
-direction of a pin by calling any of:
-
-pinctrl_request_gpio()
-pinctrl_free_gpio()
-pinctrl_gpio_direction_input()
-pinctrl_gpio_direction_output()
-
-But how does the pin control subsystem cross-correlate the GPIO
-numbers (which are a global business) to a certain pin on a certain
-pin controller?
-
-This is done by registering "ranges" of pins, which are essentially
-cross-reference tables. These are described in
-Documentation/pinctrl.txt
-
-While the pin allocation is totally managed by the pinctrl subsystem,
-gpio (under gpiolib) is still maintained by gpio drivers. It may happen
-that different pin ranges in a SoC is managed by different gpio drivers.
-
-This makes it logical to let gpio drivers announce their pin ranges to
-the pin ctrl subsystem before it will call 'pinctrl_request_gpio' in order
-to request the corresponding pin to be prepared by the pinctrl subsystem
-before any gpio usage.
-
-For this, the gpio controller can register its pin range with pinctrl
-subsystem. There are two ways of doing it currently: with or without DT.
-
-For with DT support refer to Documentation/devicetree/bindings/gpio/gpio.txt.
-
-For non-DT support, user can call gpiochip_add_pin_range() with appropriate
-parameters to register a range of gpio pins with a pinctrl driver. For this
-exact name string of pinctrl device has to be passed as one of the
-argument to this routine.
-
-
-What do these conventions omit?
-===============================
-One of the biggest things these conventions omit is pin multiplexing, since
-this is highly chip-specific and nonportable.  One platform might not need
-explicit multiplexing; another might have just two options for use of any
-given pin; another might have eight options per pin; another might be able
-to route a given GPIO to any one of several pins.  (Yes, those examples all
-come from systems that run Linux today.)
-
-Related to multiplexing is configuration and enabling of the pullups or
-pulldowns integrated on some platforms.  Not all platforms support them,
-or support them in the same way; and any given board might use external
-pullups (or pulldowns) so that the on-chip ones should not be used.
-(When a circuit needs 5 kOhm, on-chip 100 kOhm resistors won't do.)
-Likewise drive strength (2 mA vs 20 mA) and voltage (1.8V vs 3.3V) is a
-platform-specific issue, as are models like (not) having a one-to-one
-correspondence between configurable pins and GPIOs.
-
-There are other system-specific mechanisms that are not specified here,
-like the aforementioned options for input de-glitching and wire-OR output.
-Hardware may support reading or writing GPIOs in gangs, but that's usually
-configuration dependent:  for GPIOs sharing the same bank.  (GPIOs are
-commonly grouped in banks of 16 or 32, with a given SOC having several such
-banks.)  Some systems can trigger IRQs from output GPIOs, or read values
-from pins not managed as GPIOs.  Code relying on such mechanisms will
-necessarily be nonportable.
-
-Dynamic definition of GPIOs is not currently standard; for example, as
-a side effect of configuring an add-on board with some GPIO expanders.
-
-
-GPIO implementor's framework (OPTIONAL)
-=======================================
-As noted earlier, there is an optional implementation framework making it
-easier for platforms to support different kinds of GPIO controller using
-the same programming interface.  This framework is called "gpiolib".
-
-As a debugging aid, if debugfs is available a /sys/kernel/debug/gpio file
-will be found there.  That will list all the controllers registered through
-this framework, and the state of the GPIOs currently in use.
-
-
-Controller Drivers: gpio_chip
------------------------------
-In this framework each GPIO controller is packaged as a "struct gpio_chip"
-with information common to each controller of that type:
-
- - methods to establish GPIO direction
- - methods used to access GPIO values
- - flag saying whether calls to its methods may sleep
- - optional debugfs dump method (showing extra state like pullup config)
- - label for diagnostics
-
-There is also per-instance data, which may come from device.platform_data:
-the number of its first GPIO, and how many GPIOs it exposes.
-
-The code implementing a gpio_chip should support multiple instances of the
-controller, possibly using the driver model.  That code will configure each
-gpio_chip and issue gpiochip_add().  Removing a GPIO controller should be
-rare; use gpiochip_remove() when it is unavoidable.
-
-Most often a gpio_chip is part of an instance-specific structure with state
-not exposed by the GPIO interfaces, such as addressing, power management,
-and more.  Chips such as codecs will have complex non-GPIO state.
-
-Any debugfs dump method should normally ignore signals which haven't been
-requested as GPIOs.  They can use gpiochip_is_requested(), which returns
-either NULL or the label associated with that GPIO when it was requested.
-
-
-Platform Support
-----------------
-To support this framework, a platform's Kconfig will "select" either
-ARCH_REQUIRE_GPIOLIB or ARCH_WANT_OPTIONAL_GPIOLIB
-and arrange that its <asm/gpio.h> includes <asm-generic/gpio.h> and defines
-three functions: gpio_get_value(), gpio_set_value(), and gpio_cansleep().
-
-It may also provide a custom value for ARCH_NR_GPIOS, so that it better
-reflects the number of GPIOs in actual use on that platform, without
-wasting static table space.  (It should count both built-in/SoC GPIOs and
-also ones on GPIO expanders.
-
-ARCH_REQUIRE_GPIOLIB means that the gpiolib code will always get compiled
-into the kernel on that architecture.
-
-ARCH_WANT_OPTIONAL_GPIOLIB means the gpiolib code defaults to off and the user
-can enable it and build it into the kernel optionally.
-
-If neither of these options are selected, the platform does not support
-GPIOs through GPIO-lib and the code cannot be enabled by the user.
-
-Trivial implementations of those functions can directly use framework
-code, which always dispatches through the gpio_chip:
-
-  #define gpio_get_value	__gpio_get_value
-  #define gpio_set_value	__gpio_set_value
-  #define gpio_cansleep		__gpio_cansleep
-
-Fancier implementations could instead define those as inline functions with
-logic optimizing access to specific SOC-based GPIOs.  For example, if the
-referenced GPIO is the constant "12", getting or setting its value could
-cost as little as two or three instructions, never sleeping.  When such an
-optimization is not possible those calls must delegate to the framework
-code, costing at least a few dozen instructions.  For bitbanged I/O, such
-instruction savings can be significant.
-
-For SOCs, platform-specific code defines and registers gpio_chip instances
-for each bank of on-chip GPIOs.  Those GPIOs should be numbered/labeled to
-match chip vendor documentation, and directly match board schematics.  They
-may well start at zero and go up to a platform-specific limit.  Such GPIOs
-are normally integrated into platform initialization to make them always be
-available, from arch_initcall() or earlier; they can often serve as IRQs.
-
-
-Board Support
--------------
-For external GPIO controllers -- such as I2C or SPI expanders, ASICs, multi
-function devices, FPGAs or CPLDs -- most often board-specific code handles
-registering controller devices and ensures that their drivers know what GPIO
-numbers to use with gpiochip_add().  Their numbers often start right after
-platform-specific GPIOs.
-
-For example, board setup code could create structures identifying the range
-of GPIOs that chip will expose, and passes them to each GPIO expander chip
-using platform_data.  Then the chip driver's probe() routine could pass that
-data to gpiochip_add().
-
-Initialization order can be important.  For example, when a device relies on
-an I2C-based GPIO, its probe() routine should only be called after that GPIO
-becomes available.  That may mean the device should not be registered until
-calls for that GPIO can work.  One way to address such dependencies is for
-such gpio_chip controllers to provide setup() and teardown() callbacks to
-board specific code; those board specific callbacks would register devices
-once all the necessary resources are available, and remove them later when
-the GPIO controller device becomes unavailable.
-
-
-Sysfs Interface for Userspace (OPTIONAL)
-========================================
-Platforms which use the "gpiolib" implementors framework may choose to
-configure a sysfs user interface to GPIOs.  This is different from the
-debugfs interface, since it provides control over GPIO direction and
-value instead of just showing a gpio state summary.  Plus, it could be
-present on production systems without debugging support.
-
-Given appropriate hardware documentation for the system, userspace could
-know for example that GPIO #23 controls the write protect line used to
-protect boot loader segments in flash memory.  System upgrade procedures
-may need to temporarily remove that protection, first importing a GPIO,
-then changing its output state, then updating the code before re-enabling
-the write protection.  In normal use, GPIO #23 would never be touched,
-and the kernel would have no need to know about it.
-
-Again depending on appropriate hardware documentation, on some systems
-userspace GPIO can be used to determine system configuration data that
-standard kernels won't know about.  And for some tasks, simple userspace
-GPIO drivers could be all that the system really needs.
-
-Note that standard kernel drivers exist for common "LEDs and Buttons"
-GPIO tasks:  "leds-gpio" and "gpio_keys", respectively.  Use those
-instead of talking directly to the GPIOs; they integrate with kernel
-frameworks better than your userspace code could.
-
-
-Paths in Sysfs
---------------
-There are three kinds of entry in /sys/class/gpio:
-
-   -	Control interfaces used to get userspace control over GPIOs;
-
-   -	GPIOs themselves; and
-
-   -	GPIO controllers ("gpio_chip" instances).
-
-That's in addition to standard files including the "device" symlink.
-
-The control interfaces are write-only:
-
-    /sys/class/gpio/
-
-    	"export" ... Userspace may ask the kernel to export control of
-		a GPIO to userspace by writing its number to this file.
-
-		Example:  "echo 19 > export" will create a "gpio19" node
-		for GPIO #19, if that's not requested by kernel code.
-
-    	"unexport" ... Reverses the effect of exporting to userspace.
-
-		Example:  "echo 19 > unexport" will remove a "gpio19"
-		node exported using the "export" file.
-
-GPIO signals have paths like /sys/class/gpio/gpio42/ (for GPIO #42)
-and have the following read/write attributes:
-
-    /sys/class/gpio/gpioN/
-
-	"direction" ... reads as either "in" or "out".  This value may
-		normally be written.  Writing as "out" defaults to
-		initializing the value as low.  To ensure glitch free
-		operation, values "low" and "high" may be written to
-		configure the GPIO as an output with that initial value.
-
-		Note that this attribute *will not exist* if the kernel
-		doesn't support changing the direction of a GPIO, or
-		it was exported by kernel code that didn't explicitly
-		allow userspace to reconfigure this GPIO's direction.
-
-	"value" ... reads as either 0 (low) or 1 (high).  If the GPIO
-		is configured as an output, this value may be written;
-		any nonzero value is treated as high.
-
-		If the pin can be configured as interrupt-generating interrupt
-		and if it has been configured to generate interrupts (see the
-		description of "edge"), you can poll(2) on that file and
-		poll(2) will return whenever the interrupt was triggered. If
-		you use poll(2), set the events POLLPRI and POLLERR. If you
-		use select(2), set the file descriptor in exceptfds. After
-		poll(2) returns, either lseek(2) to the beginning of the sysfs
-		file and read the new value or close the file and re-open it
-		to read the value.
-
-	"edge" ... reads as either "none", "rising", "falling", or
-		"both". Write these strings to select the signal edge(s)
-		that will make poll(2) on the "value" file return.
-
-		This file exists only if the pin can be configured as an
-		interrupt generating input pin.
-
-	"active_low" ... reads as either 0 (false) or 1 (true).  Write
-		any nonzero value to invert the value attribute both
-		for reading and writing.  Existing and subsequent
-		poll(2) support configuration via the edge attribute
-		for "rising" and "falling" edges will follow this
-		setting.
-
-GPIO controllers have paths like /sys/class/gpio/gpiochip42/ (for the
-controller implementing GPIOs starting at #42) and have the following
-read-only attributes:
-
-    /sys/class/gpio/gpiochipN/
-
-    	"base" ... same as N, the first GPIO managed by this chip
-
-    	"label" ... provided for diagnostics (not always unique)
-
-    	"ngpio" ... how many GPIOs this manges (N to N + ngpio - 1)
-
-Board documentation should in most cases cover what GPIOs are used for
-what purposes.  However, those numbers are not always stable; GPIOs on
-a daughtercard might be different depending on the base board being used,
-or other cards in the stack.  In such cases, you may need to use the
-gpiochip nodes (possibly in conjunction with schematics) to determine
-the correct GPIO number to use for a given signal.
-
-
-Exporting from Kernel code
---------------------------
-Kernel code can explicitly manage exports of GPIOs which have already been
-requested using gpio_request():
-
-	/* export the GPIO to userspace */
-	int gpio_export(unsigned gpio, bool direction_may_change);
-
-	/* reverse gpio_export() */
-	void gpio_unexport();
-
-	/* create a sysfs link to an exported GPIO node */
-	int gpio_export_link(struct device *dev, const char *name,
-		unsigned gpio)
-
-	/* change the polarity of a GPIO node in sysfs */
-	int gpio_sysfs_set_active_low(unsigned gpio, int value);
-
-After a kernel driver requests a GPIO, it may only be made available in
-the sysfs interface by gpio_export().  The driver can control whether the
-signal direction may change.  This helps drivers prevent userspace code
-from accidentally clobbering important system state.
-
-This explicit exporting can help with debugging (by making some kinds
-of experiments easier), or can provide an always-there interface that's
-suitable for documenting as part of a board support package.
-
-After the GPIO has been exported, gpio_export_link() allows creating
-symlinks from elsewhere in sysfs to the GPIO sysfs node.  Drivers can
-use this to provide the interface under their own device in sysfs with
-a descriptive name.
-
-Drivers can use gpio_sysfs_set_active_low() to hide GPIO line polarity
-differences between boards from user space.  This only affects the
-sysfs interface.  Polarity change can be done both before and after
-gpio_export(), and previously enabled poll(2) support for either
-rising or falling edge will be reconfigured to follow this setting.
diff --git a/Documentation/gpio/board.txt b/Documentation/gpio/board.txt
new file mode 100644
index 000000000000..0d03506f2cc5
--- /dev/null
+++ b/Documentation/gpio/board.txt
@@ -0,0 +1,115 @@
+GPIO Mappings
+=============
+
+This document explains how GPIOs can be assigned to given devices and functions.
+Note that it only applies to the new descriptor-based interface. For a
+description of the deprecated integer-based GPIO interface please refer to
+gpio-legacy.txt (actually, there is no real mapping possible with the old
+interface; you just fetch an integer from somewhere and request the
+corresponding GPIO.
+
+Platforms that make use of GPIOs must select ARCH_REQUIRE_GPIOLIB (if GPIO usage
+is mandatory) or ARCH_WANT_OPTIONAL_GPIOLIB (if GPIO support can be omitted) in
+their Kconfig. Then, how GPIOs are mapped depends on what the platform uses to
+describe its hardware layout. Currently, mappings can be defined through device
+tree, ACPI, and platform data.
+
+Device Tree
+-----------
+GPIOs can easily be mapped to devices and functions in the device tree. The
+exact way to do it depends on the GPIO controller providing the GPIOs, see the
+device tree bindings for your controller.
+
+GPIOs mappings are defined in the consumer device's node, in a property named
+<function>-gpios, where <function> is the function the driver will request
+through gpiod_get(). For example:
+
+	foo_device {
+		compatible = "acme,foo";
+		...
+		led-gpios = <&gpio 15 GPIO_ACTIVE_HIGH>, /* red */
+			    <&gpio 16 GPIO_ACTIVE_HIGH>, /* green */
+			    <&gpio 17 GPIO_ACTIVE_HIGH>; /* blue */
+
+		power-gpio = <&gpio 1 GPIO_ACTIVE_LOW>;
+	};
+
+This property will make GPIOs 15, 16 and 17 available to the driver under the
+"led" function, and GPIO 1 as the "power" GPIO:
+
+	struct gpio_desc *red, *green, *blue, *power;
+
+	red = gpiod_get_index(dev, "led", 0);
+	green = gpiod_get_index(dev, "led", 1);
+	blue = gpiod_get_index(dev, "led", 2);
+
+	power = gpiod_get(dev, "power");
+
+The led GPIOs will be active-high, while the power GPIO will be active-low (i.e.
+gpiod_is_active_low(power) will be true).
+
+ACPI
+----
+ACPI does not support function names for GPIOs. Therefore, only the "idx"
+argument of gpiod_get_index() is useful to discriminate between GPIOs assigned
+to a device. The "con_id" argument can still be set for debugging purposes (it
+will appear under error messages as well as debug and sysfs nodes).
+
+Platform Data
+-------------
+Finally, GPIOs can be bound to devices and functions using platform data. Board
+files that desire to do so need to include the following header:
+
+	#include <linux/gpio/driver.h>
+
+GPIOs are mapped by the means of tables of lookups, containing instances of the
+gpiod_lookup structure. Two macros are defined to help declaring such mappings:
+
+	GPIO_LOOKUP(chip_label, chip_hwnum, dev_id, con_id, flags)
+	GPIO_LOOKUP_IDX(chip_label, chip_hwnum, dev_id, con_id, idx, flags)
+
+where
+
+  - chip_label is the label of the gpiod_chip instance providing the GPIO
+  - chip_hwnum is the hardware number of the GPIO within the chip
+  - dev_id is the identifier of the device that will make use of this GPIO. If
+	NULL, the GPIO will be available to all devices.
+  - con_id is the name of the GPIO function from the device point of view. It
+	can be NULL.
+  - idx is the index of the GPIO within the function.
+  - flags is defined to specify the following properties:
+	* GPIOF_ACTIVE_LOW	- to configure the GPIO as active-low
+	* GPIOF_OPEN_DRAIN	- GPIO pin is open drain type.
+	* GPIOF_OPEN_SOURCE	- GPIO pin is open source type.
+
+In the future, these flags might be extended to support more properties.
+
+Note that GPIO_LOOKUP() is just a shortcut to GPIO_LOOKUP_IDX() where idx = 0.
+
+A lookup table can then be defined as follows:
+
+	struct gpiod_lookup gpios_table[] = {
+	GPIO_LOOKUP_IDX("gpio.0", 15, "foo.0", "led", 0, GPIO_ACTIVE_HIGH),
+	GPIO_LOOKUP_IDX("gpio.0", 16, "foo.0", "led", 1, GPIO_ACTIVE_HIGH),
+	GPIO_LOOKUP_IDX("gpio.0", 17, "foo.0", "led", 2, GPIO_ACTIVE_HIGH),
+	GPIO_LOOKUP("gpio.0", 1, "foo.0", "power", GPIO_ACTIVE_LOW),
+	};
+
+And the table can be added by the board code as follows:
+
+	gpiod_add_table(gpios_table, ARRAY_SIZE(gpios_table));
+
+The driver controlling "foo.0" will then be able to obtain its GPIOs as follows:
+
+	struct gpio_desc *red, *green, *blue, *power;
+
+	red = gpiod_get_index(dev, "led", 0);
+	green = gpiod_get_index(dev, "led", 1);
+	blue = gpiod_get_index(dev, "led", 2);
+
+	power = gpiod_get(dev, "power");
+	gpiod_direction_output(power, 1);
+
+Since the "power" GPIO is mapped as active-low, its actual signal will be 0
+after this code. Contrary to the legacy integer GPIO interface, the active-low
+property is handled during mapping and is thus transparent to GPIO consumers.
diff --git a/Documentation/gpio/consumer.txt b/Documentation/gpio/consumer.txt
new file mode 100644
index 000000000000..07c74a3765a0
--- /dev/null
+++ b/Documentation/gpio/consumer.txt
@@ -0,0 +1,197 @@
+GPIO Descriptor Consumer Interface
+==================================
+
+This document describes the consumer interface of the GPIO framework. Note that
+it describes the new descriptor-based interface. For a description of the
+deprecated integer-based GPIO interface please refer to gpio-legacy.txt.
+
+
+Guidelines for GPIOs consumers
+==============================
+
+Drivers that can't work without standard GPIO calls should have Kconfig entries
+that depend on GPIOLIB. The functions that allow a driver to obtain and use
+GPIOs are available by including the following file:
+
+	#include <linux/gpio/consumer.h>
+
+All the functions that work with the descriptor-based GPIO interface are
+prefixed with gpiod_. The gpio_ prefix is used for the legacy interface. No
+other function in the kernel should use these prefixes.
+
+
+Obtaining and Disposing GPIOs
+=============================
+
+With the descriptor-based interface, GPIOs are identified with an opaque,
+non-forgeable handler that must be obtained through a call to one of the
+gpiod_get() functions. Like many other kernel subsystems, gpiod_get() takes the
+device that will use the GPIO and the function the requested GPIO is supposed to
+fulfill:
+
+	struct gpio_desc *gpiod_get(struct device *dev, const char *con_id)
+
+If a function is implemented by using several GPIOs together (e.g. a simple LED
+device that displays digits), an additional index argument can be specified:
+
+	struct gpio_desc *gpiod_get_index(struct device *dev,
+					  const char *con_id, unsigned int idx)
+
+Both functions return either a valid GPIO descriptor, or an error code checkable
+with IS_ERR(). They will never return a NULL pointer.
+
+Device-managed variants of these functions are also defined:
+
+	struct gpio_desc *devm_gpiod_get(struct device *dev, const char *con_id)
+
+	struct gpio_desc *devm_gpiod_get_index(struct device *dev,
+					       const char *con_id,
+					       unsigned int idx)
+
+A GPIO descriptor can be disposed of using the gpiod_put() function:
+
+	void gpiod_put(struct gpio_desc *desc)
+
+It is strictly forbidden to use a descriptor after calling this function. The
+device-managed variant is, unsurprisingly:
+
+	void devm_gpiod_put(struct device *dev, struct gpio_desc *desc)
+
+
+Using GPIOs
+===========
+
+Setting Direction
+-----------------
+The first thing a driver must do with a GPIO is setting its direction. This is
+done by invoking one of the gpiod_direction_*() functions:
+
+	int gpiod_direction_input(struct gpio_desc *desc)
+	int gpiod_direction_output(struct gpio_desc *desc, int value)
+
+The return value is zero for success, else a negative errno. It should be
+checked, since the get/set calls don't return errors and since misconfiguration
+is possible. You should normally issue these calls from a task context. However,
+for spinlock-safe GPIOs it is OK to use them before tasking is enabled, as part
+of early board setup.
+
+For output GPIOs, the value provided becomes the initial output value. This
+helps avoid signal glitching during system startup.
+
+A driver can also query the current direction of a GPIO:
+
+	int gpiod_get_direction(const struct gpio_desc *desc)
+
+This function will return either GPIOF_DIR_IN or GPIOF_DIR_OUT.
+
+Be aware that there is no default direction for GPIOs. Therefore, **using a GPIO
+without setting its direction first is illegal and will result in undefined
+behavior!**
+
+
+Spinlock-Safe GPIO Access
+-------------------------
+Most GPIO controllers can be accessed with memory read/write instructions. Those
+don't need to sleep, and can safely be done from inside hard (non-threaded) IRQ
+handlers and similar contexts.
+
+Use the following calls to access GPIOs from an atomic context:
+
+	int gpiod_get_value(const struct gpio_desc *desc);
+	void gpiod_set_value(struct gpio_desc *desc, int value);
+
+The values are boolean, zero for low, nonzero for high. When reading the value
+of an output pin, the value returned should be what's seen on the pin. That
+won't always match the specified output value, because of issues including
+open-drain signaling and output latencies.
+
+The get/set calls do not return errors because "invalid GPIO" should have been
+reported earlier from gpiod_direction_*(). However, note that not all platforms
+can read the value of output pins; those that can't should always return zero.
+Also, using these calls for GPIOs that can't safely be accessed without sleeping
+(see below) is an error.
+
+
+GPIO Access That May Sleep
+--------------------------
+Some GPIO controllers must be accessed using message based buses like I2C or
+SPI. Commands to read or write those GPIO values require waiting to get to the
+head of a queue to transmit a command and get its response. This requires
+sleeping, which can't be done from inside IRQ handlers.
+
+Platforms that support this type of GPIO distinguish them from other GPIOs by
+returning nonzero from this call:
+
+	int gpiod_cansleep(const struct gpio_desc *desc)
+
+To access such GPIOs, a different set of accessors is defined:
+
+	int gpiod_get_value_cansleep(const struct gpio_desc *desc)
+	void gpiod_set_value_cansleep(struct gpio_desc *desc, int value)
+
+Accessing such GPIOs requires a context which may sleep, for example a threaded
+IRQ handler, and those accessors must be used instead of spinlock-safe
+accessors without the cansleep() name suffix.
+
+Other than the fact that these accessors might sleep, and will work on GPIOs
+that can't be accessed from hardIRQ handlers, these calls act the same as the
+spinlock-safe calls.
+
+
+Active-low State and Raw GPIO Values
+------------------------------------
+Device drivers like to manage the logical state of a GPIO, i.e. the value their
+device will actually receive, no matter what lies between it and the GPIO line.
+In some cases, it might make sense to control the actual GPIO line value. The
+following set of calls ignore the active-low property of a GPIO and work on the
+raw line value:
+
+	int gpiod_get_raw_value(const struct gpio_desc *desc)
+	void gpiod_set_raw_value(struct gpio_desc *desc, int value)
+	int gpiod_get_raw_value_cansleep(const struct gpio_desc *desc)
+	void gpiod_set_raw_value_cansleep(struct gpio_desc *desc, int value)
+
+The active-low state of a GPIO can also be queried using the following call:
+
+	int gpiod_is_active_low(const struct gpio_desc *desc)
+
+Note that these functions should only be used with great moderation ; a driver
+should not have to care about the physical line level.
+
+GPIOs mapped to IRQs
+--------------------
+GPIO lines can quite often be used as IRQs. You can get the IRQ number
+corresponding to a given GPIO using the following call:
+
+	int gpiod_to_irq(const struct gpio_desc *desc)
+
+It will return an IRQ number, or an negative errno code if the mapping can't be
+done (most likely because that particular GPIO cannot be used as IRQ). It is an
+unchecked error to use a GPIO that wasn't set up as an input using
+gpiod_direction_input(), or to use an IRQ number that didn't originally come
+from gpiod_to_irq(). gpiod_to_irq() is not allowed to sleep.
+
+Non-error values returned from gpiod_to_irq() can be passed to request_irq() or
+free_irq(). They will often be stored into IRQ resources for platform devices,
+by the board-specific initialization code. Note that IRQ trigger options are
+part of the IRQ interface, e.g. IRQF_TRIGGER_FALLING, as are system wakeup
+capabilities.
+
+
+Interacting With the Legacy GPIO Subsystem
+==========================================
+Many kernel subsystems still handle GPIOs using the legacy integer-based
+interface. Although it is strongly encouraged to upgrade them to the safer
+descriptor-based API, the following two functions allow you to convert a GPIO
+descriptor into the GPIO integer namespace and vice-versa:
+
+	int desc_to_gpio(const struct gpio_desc *desc)
+	struct gpio_desc *gpio_to_desc(unsigned gpio)
+
+The GPIO number returned by desc_to_gpio() can be safely used as long as the
+GPIO descriptor has not been freed. All the same, a GPIO number passed to
+gpio_to_desc() must have been properly acquired, and usage of the returned GPIO
+descriptor is only possible after the GPIO number has been released.
+
+Freeing a GPIO obtained by one API with the other API is forbidden and an
+unchecked error.
diff --git a/Documentation/gpio/driver.txt b/Documentation/gpio/driver.txt
new file mode 100644
index 000000000000..9da0bfa74781
--- /dev/null
+++ b/Documentation/gpio/driver.txt
@@ -0,0 +1,75 @@
+GPIO Descriptor Driver Interface
+================================
+
+This document serves as a guide for GPIO chip drivers writers. Note that it
+describes the new descriptor-based interface. For a description of the
+deprecated integer-based GPIO interface please refer to gpio-legacy.txt.
+
+Each GPIO controller driver needs to include the following header, which defines
+the structures used to define a GPIO driver:
+
+	#include <linux/gpio/driver.h>
+
+
+Internal Representation of GPIOs
+================================
+
+Inside a GPIO driver, individual GPIOs are identified by their hardware number,
+which is a unique number between 0 and n, n being the number of GPIOs managed by
+the chip. This number is purely internal: the hardware number of a particular
+GPIO descriptor is never made visible outside of the driver.
+
+On top of this internal number, each GPIO also need to have a global number in
+the integer GPIO namespace so that it can be used with the legacy GPIO
+interface. Each chip must thus have a "base" number (which can be automatically
+assigned), and for each GPIO the global number will be (base + hardware number).
+Although the integer representation is considered deprecated, it still has many
+users and thus needs to be maintained.
+
+So for example one platform could use numbers 32-159 for GPIOs, with a
+controller defining 128 GPIOs at a "base" of 32 ; while another platform uses
+numbers 0..63 with one set of GPIO controllers, 64-79 with another type of GPIO
+controller, and on one particular board 80-95 with an FPGA. The numbers need not
+be contiguous; either of those platforms could also use numbers 2000-2063 to
+identify GPIOs in a bank of I2C GPIO expanders.
+
+
+Controller Drivers: gpio_chip
+=============================
+
+In the gpiolib framework each GPIO controller is packaged as a "struct
+gpio_chip" (see linux/gpio/driver.h for its complete definition) with members
+common to each controller of that type:
+
+ - methods to establish GPIO direction
+ - methods used to access GPIO values
+ - method to return the IRQ number associated to a given GPIO
+ - flag saying whether calls to its methods may sleep
+ - optional debugfs dump method (showing extra state like pullup config)
+ - optional base number (will be automatically assigned if omitted)
+ - label for diagnostics and GPIOs mapping using platform data
+
+The code implementing a gpio_chip should support multiple instances of the
+controller, possibly using the driver model. That code will configure each
+gpio_chip and issue gpiochip_add(). Removing a GPIO controller should be rare;
+use gpiochip_remove() when it is unavoidable.
+
+Most often a gpio_chip is part of an instance-specific structure with state not
+exposed by the GPIO interfaces, such as addressing, power management, and more.
+Chips such as codecs will have complex non-GPIO state.
+
+Any debugfs dump method should normally ignore signals which haven't been
+requested as GPIOs. They can use gpiochip_is_requested(), which returns either
+NULL or the label associated with that GPIO when it was requested.
+
+Locking IRQ usage
+-----------------
+Input GPIOs can be used as IRQ signals. When this happens, a driver is requested
+to mark the GPIO as being used as an IRQ:
+
+	int gpiod_lock_as_irq(struct gpio_desc *desc)
+
+This will prevent the use of non-irq related GPIO APIs until the GPIO IRQ lock
+is released:
+
+	void gpiod_unlock_as_irq(struct gpio_desc *desc)
diff --git a/Documentation/gpio/gpio-legacy.txt b/Documentation/gpio/gpio-legacy.txt
new file mode 100644
index 000000000000..6f83fa965b4b
--- /dev/null
+++ b/Documentation/gpio/gpio-legacy.txt
@@ -0,0 +1,775 @@
+GPIO Interfaces
+
+This provides an overview of GPIO access conventions on Linux.
+
+These calls use the gpio_* naming prefix.  No other calls should use that
+prefix, or the related __gpio_* prefix.
+
+
+What is a GPIO?
+===============
+A "General Purpose Input/Output" (GPIO) is a flexible software-controlled
+digital signal.  They are provided from many kinds of chip, and are familiar
+to Linux developers working with embedded and custom hardware.  Each GPIO
+represents a bit connected to a particular pin, or "ball" on Ball Grid Array
+(BGA) packages.  Board schematics show which external hardware connects to
+which GPIOs.  Drivers can be written generically, so that board setup code
+passes such pin configuration data to drivers.
+
+System-on-Chip (SOC) processors heavily rely on GPIOs.  In some cases, every
+non-dedicated pin can be configured as a GPIO; and most chips have at least
+several dozen of them.  Programmable logic devices (like FPGAs) can easily
+provide GPIOs; multifunction chips like power managers, and audio codecs
+often have a few such pins to help with pin scarcity on SOCs; and there are
+also "GPIO Expander" chips that connect using the I2C or SPI serial busses.
+Most PC southbridges have a few dozen GPIO-capable pins (with only the BIOS
+firmware knowing how they're used).
+
+The exact capabilities of GPIOs vary between systems.  Common options:
+
+  - Output values are writable (high=1, low=0).  Some chips also have
+    options about how that value is driven, so that for example only one
+    value might be driven ... supporting "wire-OR" and similar schemes
+    for the other value (notably, "open drain" signaling).
+
+  - Input values are likewise readable (1, 0).  Some chips support readback
+    of pins configured as "output", which is very useful in such "wire-OR"
+    cases (to support bidirectional signaling).  GPIO controllers may have
+    input de-glitch/debounce logic, sometimes with software controls.
+
+  - Inputs can often be used as IRQ signals, often edge triggered but
+    sometimes level triggered.  Such IRQs may be configurable as system
+    wakeup events, to wake the system from a low power state.
+
+  - Usually a GPIO will be configurable as either input or output, as needed
+    by different product boards; single direction ones exist too.
+
+  - Most GPIOs can be accessed while holding spinlocks, but those accessed
+    through a serial bus normally can't.  Some systems support both types.
+
+On a given board each GPIO is used for one specific purpose like monitoring
+MMC/SD card insertion/removal, detecting card writeprotect status, driving
+a LED, configuring a transceiver, bitbanging a serial bus, poking a hardware
+watchdog, sensing a switch, and so on.
+
+
+GPIO conventions
+================
+Note that this is called a "convention" because you don't need to do it this
+way, and it's no crime if you don't.  There **are** cases where portability
+is not the main issue; GPIOs are often used for the kind of board-specific
+glue logic that may even change between board revisions, and can't ever be
+used on a board that's wired differently.  Only least-common-denominator
+functionality can be very portable.  Other features are platform-specific,
+and that can be critical for glue logic.
+
+Plus, this doesn't require any implementation framework, just an interface.
+One platform might implement it as simple inline functions accessing chip
+registers; another might implement it by delegating through abstractions
+used for several very different kinds of GPIO controller.  (There is some
+optional code supporting such an implementation strategy, described later
+in this document, but drivers acting as clients to the GPIO interface must
+not care how it's implemented.)
+
+That said, if the convention is supported on their platform, drivers should
+use it when possible.  Platforms must select ARCH_REQUIRE_GPIOLIB or
+ARCH_WANT_OPTIONAL_GPIOLIB in their Kconfig.  Drivers that can't work without
+standard GPIO calls should have Kconfig entries which depend on GPIOLIB.  The
+GPIO calls are available, either as "real code" or as optimized-away stubs,
+when drivers use the include file:
+
+	#include <linux/gpio.h>
+
+If you stick to this convention then it'll be easier for other developers to
+see what your code is doing, and help maintain it.
+
+Note that these operations include I/O barriers on platforms which need to
+use them; drivers don't need to add them explicitly.
+
+
+Identifying GPIOs
+-----------------
+GPIOs are identified by unsigned integers in the range 0..MAX_INT.  That
+reserves "negative" numbers for other purposes like marking signals as
+"not available on this board", or indicating faults.  Code that doesn't
+touch the underlying hardware treats these integers as opaque cookies.
+
+Platforms define how they use those integers, and usually #define symbols
+for the GPIO lines so that board-specific setup code directly corresponds
+to the relevant schematics.  In contrast, drivers should only use GPIO
+numbers passed to them from that setup code, using platform_data to hold
+board-specific pin configuration data (along with other board specific
+data they need).  That avoids portability problems.
+
+So for example one platform uses numbers 32-159 for GPIOs; while another
+uses numbers 0..63 with one set of GPIO controllers, 64-79 with another
+type of GPIO controller, and on one particular board 80-95 with an FPGA.
+The numbers need not be contiguous; either of those platforms could also
+use numbers 2000-2063 to identify GPIOs in a bank of I2C GPIO expanders.
+
+If you want to initialize a structure with an invalid GPIO number, use
+some negative number (perhaps "-EINVAL"); that will never be valid.  To
+test if such number from such a structure could reference a GPIO, you
+may use this predicate:
+
+	int gpio_is_valid(int number);
+
+A number that's not valid will be rejected by calls which may request
+or free GPIOs (see below).  Other numbers may also be rejected; for
+example, a number might be valid but temporarily unused on a given board.
+
+Whether a platform supports multiple GPIO controllers is a platform-specific
+implementation issue, as are whether that support can leave "holes" in the space
+of GPIO numbers, and whether new controllers can be added at runtime.  Such issues
+can affect things including whether adjacent GPIO numbers are both valid.
+
+Using GPIOs
+-----------
+The first thing a system should do with a GPIO is allocate it, using
+the gpio_request() call; see later.
+
+One of the next things to do with a GPIO, often in board setup code when
+setting up a platform_device using the GPIO, is mark its direction:
+
+	/* set as input or output, returning 0 or negative errno */
+	int gpio_direction_input(unsigned gpio);
+	int gpio_direction_output(unsigned gpio, int value);
+
+The return value is zero for success, else a negative errno.  It should
+be checked, since the get/set calls don't have error returns and since
+misconfiguration is possible.  You should normally issue these calls from
+a task context.  However, for spinlock-safe GPIOs it's OK to use them
+before tasking is enabled, as part of early board setup.
+
+For output GPIOs, the value provided becomes the initial output value.
+This helps avoid signal glitching during system startup.
+
+For compatibility with legacy interfaces to GPIOs, setting the direction
+of a GPIO implicitly requests that GPIO (see below) if it has not been
+requested already.  That compatibility is being removed from the optional
+gpiolib framework.
+
+Setting the direction can fail if the GPIO number is invalid, or when
+that particular GPIO can't be used in that mode.  It's generally a bad
+idea to rely on boot firmware to have set the direction correctly, since
+it probably wasn't validated to do more than boot Linux.  (Similarly,
+that board setup code probably needs to multiplex that pin as a GPIO,
+and configure pullups/pulldowns appropriately.)
+
+
+Spinlock-Safe GPIO access
+-------------------------
+Most GPIO controllers can be accessed with memory read/write instructions.
+Those don't need to sleep, and can safely be done from inside hard
+(nonthreaded) IRQ handlers and similar contexts.
+
+Use the following calls to access such GPIOs,
+for which gpio_cansleep() will always return false (see below):
+
+	/* GPIO INPUT:  return zero or nonzero */
+	int gpio_get_value(unsigned gpio);
+
+	/* GPIO OUTPUT */
+	void gpio_set_value(unsigned gpio, int value);
+
+The values are boolean, zero for low, nonzero for high.  When reading the
+value of an output pin, the value returned should be what's seen on the
+pin ... that won't always match the specified output value, because of
+issues including open-drain signaling and output latencies.
+
+The get/set calls have no error returns because "invalid GPIO" should have
+been reported earlier from gpio_direction_*().  However, note that not all
+platforms can read the value of output pins; those that can't should always
+return zero.  Also, using these calls for GPIOs that can't safely be accessed
+without sleeping (see below) is an error.
+
+Platform-specific implementations are encouraged to optimize the two
+calls to access the GPIO value in cases where the GPIO number (and for
+output, value) are constant.  It's normal for them to need only a couple
+of instructions in such cases (reading or writing a hardware register),
+and not to need spinlocks.  Such optimized calls can make bitbanging
+applications a lot more efficient (in both space and time) than spending
+dozens of instructions on subroutine calls.
+
+
+GPIO access that may sleep
+--------------------------
+Some GPIO controllers must be accessed using message based busses like I2C
+or SPI.  Commands to read or write those GPIO values require waiting to
+get to the head of a queue to transmit a command and get its response.
+This requires sleeping, which can't be done from inside IRQ handlers.
+
+Platforms that support this type of GPIO distinguish them from other GPIOs
+by returning nonzero from this call (which requires a valid GPIO number,
+which should have been previously allocated with gpio_request):
+
+	int gpio_cansleep(unsigned gpio);
+
+To access such GPIOs, a different set of accessors is defined:
+
+	/* GPIO INPUT:  return zero or nonzero, might sleep */
+	int gpio_get_value_cansleep(unsigned gpio);
+
+	/* GPIO OUTPUT, might sleep */
+	void gpio_set_value_cansleep(unsigned gpio, int value);
+
+
+Accessing such GPIOs requires a context which may sleep,  for example
+a threaded IRQ handler, and those accessors must be used instead of
+spinlock-safe accessors without the cansleep() name suffix.
+
+Other than the fact that these accessors might sleep, and will work
+on GPIOs that can't be accessed from hardIRQ handlers, these calls act
+the same as the spinlock-safe calls.
+
+  ** IN ADDITION ** calls to setup and configure such GPIOs must be made
+from contexts which may sleep, since they may need to access the GPIO
+controller chip too:  (These setup calls are usually made from board
+setup or driver probe/teardown code, so this is an easy constraint.)
+
+	gpio_direction_input()
+	gpio_direction_output()
+	gpio_request()
+
+## 	gpio_request_one()
+##	gpio_request_array()
+## 	gpio_free_array()
+
+	gpio_free()
+	gpio_set_debounce()
+
+
+
+Claiming and Releasing GPIOs
+----------------------------
+To help catch system configuration errors, two calls are defined.
+
+	/* request GPIO, returning 0 or negative errno.
+	 * non-null labels may be useful for diagnostics.
+	 */
+	int gpio_request(unsigned gpio, const char *label);
+
+	/* release previously-claimed GPIO */
+	void gpio_free(unsigned gpio);
+
+Passing invalid GPIO numbers to gpio_request() will fail, as will requesting
+GPIOs that have already been claimed with that call.  The return value of
+gpio_request() must be checked.  You should normally issue these calls from
+a task context.  However, for spinlock-safe GPIOs it's OK to request GPIOs
+before tasking is enabled, as part of early board setup.
+
+These calls serve two basic purposes.  One is marking the signals which
+are actually in use as GPIOs, for better diagnostics; systems may have
+several hundred potential GPIOs, but often only a dozen are used on any
+given board.  Another is to catch conflicts, identifying errors when
+(a) two or more drivers wrongly think they have exclusive use of that
+signal, or (b) something wrongly believes it's safe to remove drivers
+needed to manage a signal that's in active use.  That is, requesting a
+GPIO can serve as a kind of lock.
+
+Some platforms may also use knowledge about what GPIOs are active for
+power management, such as by powering down unused chip sectors and, more
+easily, gating off unused clocks.
+
+For GPIOs that use pins known to the pinctrl subsystem, that subsystem should
+be informed of their use; a gpiolib driver's .request() operation may call
+pinctrl_request_gpio(), and a gpiolib driver's .free() operation may call
+pinctrl_free_gpio(). The pinctrl subsystem allows a pinctrl_request_gpio()
+to succeed concurrently with a pin or pingroup being "owned" by a device for
+pin multiplexing.
+
+Any programming of pin multiplexing hardware that is needed to route the
+GPIO signal to the appropriate pin should occur within a GPIO driver's
+.direction_input() or .direction_output() operations, and occur after any
+setup of an output GPIO's value. This allows a glitch-free migration from a
+pin's special function to GPIO. This is sometimes required when using a GPIO
+to implement a workaround on signals typically driven by a non-GPIO HW block.
+
+Some platforms allow some or all GPIO signals to be routed to different pins.
+Similarly, other aspects of the GPIO or pin may need to be configured, such as
+pullup/pulldown. Platform software should arrange that any such details are
+configured prior to gpio_request() being called for those GPIOs, e.g. using
+the pinctrl subsystem's mapping table, so that GPIO users need not be aware
+of these details.
+
+Also note that it's your responsibility to have stopped using a GPIO
+before you free it.
+
+Considering in most cases GPIOs are actually configured right after they
+are claimed, three additional calls are defined:
+
+	/* request a single GPIO, with initial configuration specified by
+	 * 'flags', identical to gpio_request() wrt other arguments and
+	 * return value
+	 */
+	int gpio_request_one(unsigned gpio, unsigned long flags, const char *label);
+
+	/* request multiple GPIOs in a single call
+	 */
+	int gpio_request_array(struct gpio *array, size_t num);
+
+	/* release multiple GPIOs in a single call
+	 */
+	void gpio_free_array(struct gpio *array, size_t num);
+
+where 'flags' is currently defined to specify the following properties:
+
+	* GPIOF_DIR_IN		- to configure direction as input
+	* GPIOF_DIR_OUT		- to configure direction as output
+
+	* GPIOF_INIT_LOW	- as output, set initial level to LOW
+	* GPIOF_INIT_HIGH	- as output, set initial level to HIGH
+	* GPIOF_OPEN_DRAIN	- gpio pin is open drain type.
+	* GPIOF_OPEN_SOURCE	- gpio pin is open source type.
+
+	* GPIOF_EXPORT_DIR_FIXED	- export gpio to sysfs, keep direction
+	* GPIOF_EXPORT_DIR_CHANGEABLE	- also export, allow changing direction
+
+since GPIOF_INIT_* are only valid when configured as output, so group valid
+combinations as:
+
+	* GPIOF_IN		- configure as input
+	* GPIOF_OUT_INIT_LOW	- configured as output, initial level LOW
+	* GPIOF_OUT_INIT_HIGH	- configured as output, initial level HIGH
+
+When setting the flag as GPIOF_OPEN_DRAIN then it will assume that pins is
+open drain type. Such pins will not be driven to 1 in output mode. It is
+require to connect pull-up on such pins. By enabling this flag, gpio lib will
+make the direction to input when it is asked to set value of 1 in output mode
+to make the pin HIGH. The pin is make to LOW by driving value 0 in output mode.
+
+When setting the flag as GPIOF_OPEN_SOURCE then it will assume that pins is
+open source type. Such pins will not be driven to 0 in output mode. It is
+require to connect pull-down on such pin. By enabling this flag, gpio lib will
+make the direction to input when it is asked to set value of 0 in output mode
+to make the pin LOW. The pin is make to HIGH by driving value 1 in output mode.
+
+In the future, these flags can be extended to support more properties.
+
+Further more, to ease the claim/release of multiple GPIOs, 'struct gpio' is
+introduced to encapsulate all three fields as:
+
+	struct gpio {
+		unsigned	gpio;
+		unsigned long	flags;
+		const char	*label;
+	};
+
+A typical example of usage:
+
+	static struct gpio leds_gpios[] = {
+		{ 32, GPIOF_OUT_INIT_HIGH, "Power LED" }, /* default to ON */
+		{ 33, GPIOF_OUT_INIT_LOW,  "Green LED" }, /* default to OFF */
+		{ 34, GPIOF_OUT_INIT_LOW,  "Red LED"   }, /* default to OFF */
+		{ 35, GPIOF_OUT_INIT_LOW,  "Blue LED"  }, /* default to OFF */
+		{ ... },
+	};
+
+	err = gpio_request_one(31, GPIOF_IN, "Reset Button");
+	if (err)
+		...
+
+	err = gpio_request_array(leds_gpios, ARRAY_SIZE(leds_gpios));
+	if (err)
+		...
+
+	gpio_free_array(leds_gpios, ARRAY_SIZE(leds_gpios));
+
+
+GPIOs mapped to IRQs
+--------------------
+GPIO numbers are unsigned integers; so are IRQ numbers.  These make up
+two logically distinct namespaces (GPIO 0 need not use IRQ 0).  You can
+map between them using calls like:
+
+	/* map GPIO numbers to IRQ numbers */
+	int gpio_to_irq(unsigned gpio);
+
+	/* map IRQ numbers to GPIO numbers (avoid using this) */
+	int irq_to_gpio(unsigned irq);
+
+Those return either the corresponding number in the other namespace, or
+else a negative errno code if the mapping can't be done.  (For example,
+some GPIOs can't be used as IRQs.)  It is an unchecked error to use a GPIO
+number that wasn't set up as an input using gpio_direction_input(), or
+to use an IRQ number that didn't originally come from gpio_to_irq().
+
+These two mapping calls are expected to cost on the order of a single
+addition or subtraction.  They're not allowed to sleep.
+
+Non-error values returned from gpio_to_irq() can be passed to request_irq()
+or free_irq().  They will often be stored into IRQ resources for platform
+devices, by the board-specific initialization code.  Note that IRQ trigger
+options are part of the IRQ interface, e.g. IRQF_TRIGGER_FALLING, as are
+system wakeup capabilities.
+
+Non-error values returned from irq_to_gpio() would most commonly be used
+with gpio_get_value(), for example to initialize or update driver state
+when the IRQ is edge-triggered.  Note that some platforms don't support
+this reverse mapping, so you should avoid using it.
+
+
+Emulating Open Drain Signals
+----------------------------
+Sometimes shared signals need to use "open drain" signaling, where only the
+low signal level is actually driven.  (That term applies to CMOS transistors;
+"open collector" is used for TTL.)  A pullup resistor causes the high signal
+level.  This is sometimes called a "wire-AND"; or more practically, from the
+negative logic (low=true) perspective this is a "wire-OR".
+
+One common example of an open drain signal is a shared active-low IRQ line.
+Also, bidirectional data bus signals sometimes use open drain signals.
+
+Some GPIO controllers directly support open drain outputs; many don't.  When
+you need open drain signaling but your hardware doesn't directly support it,
+there's a common idiom you can use to emulate it with any GPIO pin that can
+be used as either an input or an output:
+
+ LOW:	gpio_direction_output(gpio, 0) ... this drives the signal
+	and overrides the pullup.
+
+ HIGH:	gpio_direction_input(gpio) ... this turns off the output,
+	so the pullup (or some other device) controls the signal.
+
+If you are "driving" the signal high but gpio_get_value(gpio) reports a low
+value (after the appropriate rise time passes), you know some other component
+is driving the shared signal low.  That's not necessarily an error.  As one
+common example, that's how I2C clocks are stretched:  a slave that needs a
+slower clock delays the rising edge of SCK, and the I2C master adjusts its
+signaling rate accordingly.
+
+
+GPIO controllers and the pinctrl subsystem
+------------------------------------------
+
+A GPIO controller on a SOC might be tightly coupled with the pinctrl
+subsystem, in the sense that the pins can be used by other functions
+together with an optional gpio feature. We have already covered the
+case where e.g. a GPIO controller need to reserve a pin or set the
+direction of a pin by calling any of:
+
+pinctrl_request_gpio()
+pinctrl_free_gpio()
+pinctrl_gpio_direction_input()
+pinctrl_gpio_direction_output()
+
+But how does the pin control subsystem cross-correlate the GPIO
+numbers (which are a global business) to a certain pin on a certain
+pin controller?
+
+This is done by registering "ranges" of pins, which are essentially
+cross-reference tables. These are described in
+Documentation/pinctrl.txt
+
+While the pin allocation is totally managed by the pinctrl subsystem,
+gpio (under gpiolib) is still maintained by gpio drivers. It may happen
+that different pin ranges in a SoC is managed by different gpio drivers.
+
+This makes it logical to let gpio drivers announce their pin ranges to
+the pin ctrl subsystem before it will call 'pinctrl_request_gpio' in order
+to request the corresponding pin to be prepared by the pinctrl subsystem
+before any gpio usage.
+
+For this, the gpio controller can register its pin range with pinctrl
+subsystem. There are two ways of doing it currently: with or without DT.
+
+For with DT support refer to Documentation/devicetree/bindings/gpio/gpio.txt.
+
+For non-DT support, user can call gpiochip_add_pin_range() with appropriate
+parameters to register a range of gpio pins with a pinctrl driver. For this
+exact name string of pinctrl device has to be passed as one of the
+argument to this routine.
+
+
+What do these conventions omit?
+===============================
+One of the biggest things these conventions omit is pin multiplexing, since
+this is highly chip-specific and nonportable.  One platform might not need
+explicit multiplexing; another might have just two options for use of any
+given pin; another might have eight options per pin; another might be able
+to route a given GPIO to any one of several pins.  (Yes, those examples all
+come from systems that run Linux today.)
+
+Related to multiplexing is configuration and enabling of the pullups or
+pulldowns integrated on some platforms.  Not all platforms support them,
+or support them in the same way; and any given board might use external
+pullups (or pulldowns) so that the on-chip ones should not be used.
+(When a circuit needs 5 kOhm, on-chip 100 kOhm resistors won't do.)
+Likewise drive strength (2 mA vs 20 mA) and voltage (1.8V vs 3.3V) is a
+platform-specific issue, as are models like (not) having a one-to-one
+correspondence between configurable pins and GPIOs.
+
+There are other system-specific mechanisms that are not specified here,
+like the aforementioned options for input de-glitching and wire-OR output.
+Hardware may support reading or writing GPIOs in gangs, but that's usually
+configuration dependent:  for GPIOs sharing the same bank.  (GPIOs are
+commonly grouped in banks of 16 or 32, with a given SOC having several such
+banks.)  Some systems can trigger IRQs from output GPIOs, or read values
+from pins not managed as GPIOs.  Code relying on such mechanisms will
+necessarily be nonportable.
+
+Dynamic definition of GPIOs is not currently standard; for example, as
+a side effect of configuring an add-on board with some GPIO expanders.
+
+
+GPIO implementor's framework (OPTIONAL)
+=======================================
+As noted earlier, there is an optional implementation framework making it
+easier for platforms to support different kinds of GPIO controller using
+the same programming interface.  This framework is called "gpiolib".
+
+As a debugging aid, if debugfs is available a /sys/kernel/debug/gpio file
+will be found there.  That will list all the controllers registered through
+this framework, and the state of the GPIOs currently in use.
+
+
+Controller Drivers: gpio_chip
+-----------------------------
+In this framework each GPIO controller is packaged as a "struct gpio_chip"
+with information common to each controller of that type:
+
+ - methods to establish GPIO direction
+ - methods used to access GPIO values
+ - flag saying whether calls to its methods may sleep
+ - optional debugfs dump method (showing extra state like pullup config)
+ - label for diagnostics
+
+There is also per-instance data, which may come from device.platform_data:
+the number of its first GPIO, and how many GPIOs it exposes.
+
+The code implementing a gpio_chip should support multiple instances of the
+controller, possibly using the driver model.  That code will configure each
+gpio_chip and issue gpiochip_add().  Removing a GPIO controller should be
+rare; use gpiochip_remove() when it is unavoidable.
+
+Most often a gpio_chip is part of an instance-specific structure with state
+not exposed by the GPIO interfaces, such as addressing, power management,
+and more.  Chips such as codecs will have complex non-GPIO state.
+
+Any debugfs dump method should normally ignore signals which haven't been
+requested as GPIOs.  They can use gpiochip_is_requested(), which returns
+either NULL or the label associated with that GPIO when it was requested.
+
+
+Platform Support
+----------------
+To support this framework, a platform's Kconfig will "select" either
+ARCH_REQUIRE_GPIOLIB or ARCH_WANT_OPTIONAL_GPIOLIB
+and arrange that its <asm/gpio.h> includes <asm-generic/gpio.h> and defines
+three functions: gpio_get_value(), gpio_set_value(), and gpio_cansleep().
+
+It may also provide a custom value for ARCH_NR_GPIOS, so that it better
+reflects the number of GPIOs in actual use on that platform, without
+wasting static table space.  (It should count both built-in/SoC GPIOs and
+also ones on GPIO expanders.
+
+ARCH_REQUIRE_GPIOLIB means that the gpiolib code will always get compiled
+into the kernel on that architecture.
+
+ARCH_WANT_OPTIONAL_GPIOLIB means the gpiolib code defaults to off and the user
+can enable it and build it into the kernel optionally.
+
+If neither of these options are selected, the platform does not support
+GPIOs through GPIO-lib and the code cannot be enabled by the user.
+
+Trivial implementations of those functions can directly use framework
+code, which always dispatches through the gpio_chip:
+
+  #define gpio_get_value	__gpio_get_value
+  #define gpio_set_value	__gpio_set_value
+  #define gpio_cansleep		__gpio_cansleep
+
+Fancier implementations could instead define those as inline functions with
+logic optimizing access to specific SOC-based GPIOs.  For example, if the
+referenced GPIO is the constant "12", getting or setting its value could
+cost as little as two or three instructions, never sleeping.  When such an
+optimization is not possible those calls must delegate to the framework
+code, costing at least a few dozen instructions.  For bitbanged I/O, such
+instruction savings can be significant.
+
+For SOCs, platform-specific code defines and registers gpio_chip instances
+for each bank of on-chip GPIOs.  Those GPIOs should be numbered/labeled to
+match chip vendor documentation, and directly match board schematics.  They
+may well start at zero and go up to a platform-specific limit.  Such GPIOs
+are normally integrated into platform initialization to make them always be
+available, from arch_initcall() or earlier; they can often serve as IRQs.
+
+
+Board Support
+-------------
+For external GPIO controllers -- such as I2C or SPI expanders, ASICs, multi
+function devices, FPGAs or CPLDs -- most often board-specific code handles
+registering controller devices and ensures that their drivers know what GPIO
+numbers to use with gpiochip_add().  Their numbers often start right after
+platform-specific GPIOs.
+
+For example, board setup code could create structures identifying the range
+of GPIOs that chip will expose, and passes them to each GPIO expander chip
+using platform_data.  Then the chip driver's probe() routine could pass that
+data to gpiochip_add().
+
+Initialization order can be important.  For example, when a device relies on
+an I2C-based GPIO, its probe() routine should only be called after that GPIO
+becomes available.  That may mean the device should not be registered until
+calls for that GPIO can work.  One way to address such dependencies is for
+such gpio_chip controllers to provide setup() and teardown() callbacks to
+board specific code; those board specific callbacks would register devices
+once all the necessary resources are available, and remove them later when
+the GPIO controller device becomes unavailable.
+
+
+Sysfs Interface for Userspace (OPTIONAL)
+========================================
+Platforms which use the "gpiolib" implementors framework may choose to
+configure a sysfs user interface to GPIOs.  This is different from the
+debugfs interface, since it provides control over GPIO direction and
+value instead of just showing a gpio state summary.  Plus, it could be
+present on production systems without debugging support.
+
+Given appropriate hardware documentation for the system, userspace could
+know for example that GPIO #23 controls the write protect line used to
+protect boot loader segments in flash memory.  System upgrade procedures
+may need to temporarily remove that protection, first importing a GPIO,
+then changing its output state, then updating the code before re-enabling
+the write protection.  In normal use, GPIO #23 would never be touched,
+and the kernel would have no need to know about it.
+
+Again depending on appropriate hardware documentation, on some systems
+userspace GPIO can be used to determine system configuration data that
+standard kernels won't know about.  And for some tasks, simple userspace
+GPIO drivers could be all that the system really needs.
+
+Note that standard kernel drivers exist for common "LEDs and Buttons"
+GPIO tasks:  "leds-gpio" and "gpio_keys", respectively.  Use those
+instead of talking directly to the GPIOs; they integrate with kernel
+frameworks better than your userspace code could.
+
+
+Paths in Sysfs
+--------------
+There are three kinds of entry in /sys/class/gpio:
+
+   -	Control interfaces used to get userspace control over GPIOs;
+
+   -	GPIOs themselves; and
+
+   -	GPIO controllers ("gpio_chip" instances).
+
+That's in addition to standard files including the "device" symlink.
+
+The control interfaces are write-only:
+
+    /sys/class/gpio/
+
+    	"export" ... Userspace may ask the kernel to export control of
+		a GPIO to userspace by writing its number to this file.
+
+		Example:  "echo 19 > export" will create a "gpio19" node
+		for GPIO #19, if that's not requested by kernel code.
+
+    	"unexport" ... Reverses the effect of exporting to userspace.
+
+		Example:  "echo 19 > unexport" will remove a "gpio19"
+		node exported using the "export" file.
+
+GPIO signals have paths like /sys/class/gpio/gpio42/ (for GPIO #42)
+and have the following read/write attributes:
+
+    /sys/class/gpio/gpioN/
+
+	"direction" ... reads as either "in" or "out".  This value may
+		normally be written.  Writing as "out" defaults to
+		initializing the value as low.  To ensure glitch free
+		operation, values "low" and "high" may be written to
+		configure the GPIO as an output with that initial value.
+
+		Note that this attribute *will not exist* if the kernel
+		doesn't support changing the direction of a GPIO, or
+		it was exported by kernel code that didn't explicitly
+		allow userspace to reconfigure this GPIO's direction.
+
+	"value" ... reads as either 0 (low) or 1 (high).  If the GPIO
+		is configured as an output, this value may be written;
+		any nonzero value is treated as high.
+
+		If the pin can be configured as interrupt-generating interrupt
+		and if it has been configured to generate interrupts (see the
+		description of "edge"), you can poll(2) on that file and
+		poll(2) will return whenever the interrupt was triggered. If
+		you use poll(2), set the events POLLPRI and POLLERR. If you
+		use select(2), set the file descriptor in exceptfds. After
+		poll(2) returns, either lseek(2) to the beginning of the sysfs
+		file and read the new value or close the file and re-open it
+		to read the value.
+
+	"edge" ... reads as either "none", "rising", "falling", or
+		"both". Write these strings to select the signal edge(s)
+		that will make poll(2) on the "value" file return.
+
+		This file exists only if the pin can be configured as an
+		interrupt generating input pin.
+
+	"active_low" ... reads as either 0 (false) or 1 (true).  Write
+		any nonzero value to invert the value attribute both
+		for reading and writing.  Existing and subsequent
+		poll(2) support configuration via the edge attribute
+		for "rising" and "falling" edges will follow this
+		setting.
+
+GPIO controllers have paths like /sys/class/gpio/gpiochip42/ (for the
+controller implementing GPIOs starting at #42) and have the following
+read-only attributes:
+
+    /sys/class/gpio/gpiochipN/
+
+    	"base" ... same as N, the first GPIO managed by this chip
+
+    	"label" ... provided for diagnostics (not always unique)
+
+    	"ngpio" ... how many GPIOs this manges (N to N + ngpio - 1)
+
+Board documentation should in most cases cover what GPIOs are used for
+what purposes.  However, those numbers are not always stable; GPIOs on
+a daughtercard might be different depending on the base board being used,
+or other cards in the stack.  In such cases, you may need to use the
+gpiochip nodes (possibly in conjunction with schematics) to determine
+the correct GPIO number to use for a given signal.
+
+
+Exporting from Kernel code
+--------------------------
+Kernel code can explicitly manage exports of GPIOs which have already been
+requested using gpio_request():
+
+	/* export the GPIO to userspace */
+	int gpio_export(unsigned gpio, bool direction_may_change);
+
+	/* reverse gpio_export() */
+	void gpio_unexport();
+
+	/* create a sysfs link to an exported GPIO node */
+	int gpio_export_link(struct device *dev, const char *name,
+		unsigned gpio)
+
+	/* change the polarity of a GPIO node in sysfs */
+	int gpio_sysfs_set_active_low(unsigned gpio, int value);
+
+After a kernel driver requests a GPIO, it may only be made available in
+the sysfs interface by gpio_export().  The driver can control whether the
+signal direction may change.  This helps drivers prevent userspace code
+from accidentally clobbering important system state.
+
+This explicit exporting can help with debugging (by making some kinds
+of experiments easier), or can provide an always-there interface that's
+suitable for documenting as part of a board support package.
+
+After the GPIO has been exported, gpio_export_link() allows creating
+symlinks from elsewhere in sysfs to the GPIO sysfs node.  Drivers can
+use this to provide the interface under their own device in sysfs with
+a descriptive name.
+
+Drivers can use gpio_sysfs_set_active_low() to hide GPIO line polarity
+differences between boards from user space.  This only affects the
+sysfs interface.  Polarity change can be done both before and after
+gpio_export(), and previously enabled poll(2) support for either
+rising or falling edge will be reconfigured to follow this setting.
diff --git a/Documentation/gpio/gpio.txt b/Documentation/gpio/gpio.txt
new file mode 100644
index 000000000000..cd9b356e88cd
--- /dev/null
+++ b/Documentation/gpio/gpio.txt
@@ -0,0 +1,119 @@
+GPIO Interfaces
+===============
+
+The documents in this directory give detailed instructions on how to access
+GPIOs in drivers, and how to write a driver for a device that provides GPIOs
+itself.
+
+Due to the history of GPIO interfaces in the kernel, there are two different
+ways to obtain and use GPIOs:
+
+  - The descriptor-based interface is the preferred way to manipulate GPIOs,
+and is described by all the files in this directory excepted gpio-legacy.txt.
+  - The legacy integer-based interface which is considered deprecated (but still
+usable for compatibility reasons) is documented in gpio-legacy.txt.
+
+The remainder of this document applies to the new descriptor-based interface.
+gpio-legacy.txt contains the same information applied to the legacy
+integer-based interface.
+
+
+What is a GPIO?
+===============
+
+A "General Purpose Input/Output" (GPIO) is a flexible software-controlled
+digital signal. They are provided from many kinds of chip, and are familiar
+to Linux developers working with embedded and custom hardware. Each GPIO
+represents a bit connected to a particular pin, or "ball" on Ball Grid Array
+(BGA) packages. Board schematics show which external hardware connects to
+which GPIOs. Drivers can be written generically, so that board setup code
+passes such pin configuration data to drivers.
+
+System-on-Chip (SOC) processors heavily rely on GPIOs. In some cases, every
+non-dedicated pin can be configured as a GPIO; and most chips have at least
+several dozen of them. Programmable logic devices (like FPGAs) can easily
+provide GPIOs; multifunction chips like power managers, and audio codecs
+often have a few such pins to help with pin scarcity on SOCs; and there are
+also "GPIO Expander" chips that connect using the I2C or SPI serial buses.
+Most PC southbridges have a few dozen GPIO-capable pins (with only the BIOS
+firmware knowing how they're used).
+
+The exact capabilities of GPIOs vary between systems. Common options:
+
+  - Output values are writable (high=1, low=0). Some chips also have
+    options about how that value is driven, so that for example only one
+    value might be driven, supporting "wire-OR" and similar schemes for the
+    other value (notably, "open drain" signaling).
+
+  - Input values are likewise readable (1, 0). Some chips support readback
+    of pins configured as "output", which is very useful in such "wire-OR"
+    cases (to support bidirectional signaling). GPIO controllers may have
+    input de-glitch/debounce logic, sometimes with software controls.
+
+  - Inputs can often be used as IRQ signals, often edge triggered but
+    sometimes level triggered. Such IRQs may be configurable as system
+    wakeup events, to wake the system from a low power state.
+
+  - Usually a GPIO will be configurable as either input or output, as needed
+    by different product boards; single direction ones exist too.
+
+  - Most GPIOs can be accessed while holding spinlocks, but those accessed
+    through a serial bus normally can't. Some systems support both types.
+
+On a given board each GPIO is used for one specific purpose like monitoring
+MMC/SD card insertion/removal, detecting card write-protect status, driving
+a LED, configuring a transceiver, bit-banging a serial bus, poking a hardware
+watchdog, sensing a switch, and so on.
+
+
+Common GPIO Properties
+======================
+
+These properties are met through all the other documents of the GPIO interface
+and it is useful to understand them, especially if you need to define GPIO
+mappings.
+
+Active-High and Active-Low
+--------------------------
+It is natural to assume that a GPIO is "active" when its output signal is 1
+("high"), and inactive when it is 0 ("low"). However in practice the signal of a
+GPIO may be inverted before is reaches its destination, or a device could decide
+to have different conventions about what "active" means. Such decisions should
+be transparent to device drivers, therefore it is possible to define a GPIO as
+being either active-high ("1" means "active", the default) or active-low ("0"
+means "active") so that drivers only need to worry about the logical signal and
+not about what happens at the line level.
+
+Open Drain and Open Source
+--------------------------
+Sometimes shared signals need to use "open drain" (where only the low signal
+level is actually driven), or "open source" (where only the high signal level is
+driven) signaling. That term applies to CMOS transistors; "open collector" is
+used for TTL. A pullup or pulldown resistor causes the high or low signal level.
+This is sometimes called a "wire-AND"; or more practically, from the negative
+logic (low=true) perspective this is a "wire-OR".
+
+One common example of an open drain signal is a shared active-low IRQ line.
+Also, bidirectional data bus signals sometimes use open drain signals.
+
+Some GPIO controllers directly support open drain and open source outputs; many
+don't. When you need open drain signaling but your hardware doesn't directly
+support it, there's a common idiom you can use to emulate it with any GPIO pin
+that can be used as either an input or an output:
+
+ LOW:	gpiod_direction_output(gpio, 0) ... this drives the signal and overrides
+	the pullup.
+
+ HIGH:	gpiod_direction_input(gpio) ... this turns off the output, so the pullup
+	(or some other device) controls the signal.
+
+The same logic can be applied to emulate open source signaling, by driving the
+high signal and configuring the GPIO as input for low. This open drain/open
+source emulation can be handled transparently by the GPIO framework.
+
+If you are "driving" the signal high but gpiod_get_value(gpio) reports a low
+value (after the appropriate rise time passes), you know some other component is
+driving the shared signal low. That's not necessarily an error. As one common
+example, that's how I2C clocks are stretched:  a slave that needs a slower clock
+delays the rising edge of SCK, and the I2C master adjusts its signaling rate
+accordingly.
diff --git a/Documentation/gpio/sysfs.txt b/Documentation/gpio/sysfs.txt
new file mode 100644
index 000000000000..c2c3a97f8ff7
--- /dev/null
+++ b/Documentation/gpio/sysfs.txt
@@ -0,0 +1,155 @@
+GPIO Sysfs Interface for Userspace
+==================================
+
+Platforms which use the "gpiolib" implementors framework may choose to
+configure a sysfs user interface to GPIOs. This is different from the
+debugfs interface, since it provides control over GPIO direction and
+value instead of just showing a gpio state summary. Plus, it could be
+present on production systems without debugging support.
+
+Given appropriate hardware documentation for the system, userspace could
+know for example that GPIO #23 controls the write protect line used to
+protect boot loader segments in flash memory. System upgrade procedures
+may need to temporarily remove that protection, first importing a GPIO,
+then changing its output state, then updating the code before re-enabling
+the write protection. In normal use, GPIO #23 would never be touched,
+and the kernel would have no need to know about it.
+
+Again depending on appropriate hardware documentation, on some systems
+userspace GPIO can be used to determine system configuration data that
+standard kernels won't know about. And for some tasks, simple userspace
+GPIO drivers could be all that the system really needs.
+
+Note that standard kernel drivers exist for common "LEDs and Buttons"
+GPIO tasks:  "leds-gpio" and "gpio_keys", respectively. Use those
+instead of talking directly to the GPIOs; they integrate with kernel
+frameworks better than your userspace code could.
+
+
+Paths in Sysfs
+--------------
+There are three kinds of entry in /sys/class/gpio:
+
+   -	Control interfaces used to get userspace control over GPIOs;
+
+   -	GPIOs themselves; and
+
+   -	GPIO controllers ("gpio_chip" instances).
+
+That's in addition to standard files including the "device" symlink.
+
+The control interfaces are write-only:
+
+    /sys/class/gpio/
+
+    	"export" ... Userspace may ask the kernel to export control of
+		a GPIO to userspace by writing its number to this file.
+
+		Example:  "echo 19 > export" will create a "gpio19" node
+		for GPIO #19, if that's not requested by kernel code.
+
+    	"unexport" ... Reverses the effect of exporting to userspace.
+
+		Example:  "echo 19 > unexport" will remove a "gpio19"
+		node exported using the "export" file.
+
+GPIO signals have paths like /sys/class/gpio/gpio42/ (for GPIO #42)
+and have the following read/write attributes:
+
+    /sys/class/gpio/gpioN/
+
+	"direction" ... reads as either "in" or "out". This value may
+		normally be written. Writing as "out" defaults to
+		initializing the value as low. To ensure glitch free
+		operation, values "low" and "high" may be written to
+		configure the GPIO as an output with that initial value.
+
+		Note that this attribute *will not exist* if the kernel
+		doesn't support changing the direction of a GPIO, or
+		it was exported by kernel code that didn't explicitly
+		allow userspace to reconfigure this GPIO's direction.
+
+	"value" ... reads as either 0 (low) or 1 (high). If the GPIO
+		is configured as an output, this value may be written;
+		any nonzero value is treated as high.
+
+		If the pin can be configured as interrupt-generating interrupt
+		and if it has been configured to generate interrupts (see the
+		description of "edge"), you can poll(2) on that file and
+		poll(2) will return whenever the interrupt was triggered. If
+		you use poll(2), set the events POLLPRI and POLLERR. If you
+		use select(2), set the file descriptor in exceptfds. After
+		poll(2) returns, either lseek(2) to the beginning of the sysfs
+		file and read the new value or close the file and re-open it
+		to read the value.
+
+	"edge" ... reads as either "none", "rising", "falling", or
+		"both". Write these strings to select the signal edge(s)
+		that will make poll(2) on the "value" file return.
+
+		This file exists only if the pin can be configured as an
+		interrupt generating input pin.
+
+	"active_low" ... reads as either 0 (false) or 1 (true). Write
+		any nonzero value to invert the value attribute both
+		for reading and writing. Existing and subsequent
+		poll(2) support configuration via the edge attribute
+		for "rising" and "falling" edges will follow this
+		setting.
+
+GPIO controllers have paths like /sys/class/gpio/gpiochip42/ (for the
+controller implementing GPIOs starting at #42) and have the following
+read-only attributes:
+
+    /sys/class/gpio/gpiochipN/
+
+    	"base" ... same as N, the first GPIO managed by this chip
+
+    	"label" ... provided for diagnostics (not always unique)
+
+    	"ngpio" ... how many GPIOs this manges (N to N + ngpio - 1)
+
+Board documentation should in most cases cover what GPIOs are used for
+what purposes. However, those numbers are not always stable; GPIOs on
+a daughtercard might be different depending on the base board being used,
+or other cards in the stack. In such cases, you may need to use the
+gpiochip nodes (possibly in conjunction with schematics) to determine
+the correct GPIO number to use for a given signal.
+
+
+Exporting from Kernel code
+--------------------------
+Kernel code can explicitly manage exports of GPIOs which have already been
+requested using gpio_request():
+
+	/* export the GPIO to userspace */
+	int gpiod_export(struct gpio_desc *desc, bool direction_may_change);
+
+	/* reverse gpio_export() */
+	void gpiod_unexport(struct gpio_desc *desc);
+
+	/* create a sysfs link to an exported GPIO node */
+	int gpiod_export_link(struct device *dev, const char *name,
+		      struct gpio_desc *desc);
+
+	/* change the polarity of a GPIO node in sysfs */
+	int gpiod_sysfs_set_active_low(struct gpio_desc *desc, int value);
+
+After a kernel driver requests a GPIO, it may only be made available in
+the sysfs interface by gpiod_export(). The driver can control whether the
+signal direction may change. This helps drivers prevent userspace code
+from accidentally clobbering important system state.
+
+This explicit exporting can help with debugging (by making some kinds
+of experiments easier), or can provide an always-there interface that's
+suitable for documenting as part of a board support package.
+
+After the GPIO has been exported, gpiod_export_link() allows creating
+symlinks from elsewhere in sysfs to the GPIO sysfs node. Drivers can
+use this to provide the interface under their own device in sysfs with
+a descriptive name.
+
+Drivers can use gpiod_sysfs_set_active_low() to hide GPIO line polarity
+differences between boards from user space. Polarity change can be done both
+before and after gpiod_export(), and previously enabled poll(2) support for
+either rising or falling edge will be reconfigured to follow this setting.
-- 
cgit 


From 79697ef94c48df8831a156bbb046e94215b7300d Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Sat, 16 Nov 2013 21:39:32 +0900
Subject: gpiolib: fix find_chip_by_name()

find_chip_by_name() was incorrectly implemented by using
gpio_lookup_list instead of gpiod_chips to iterate through all the
registered GPIO controllers. This patch reimplements it by using
gpiochip_find() with a custom search function, which simplifies the code
on top of fixing the mistake.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpiolib.c | 29 ++++++++++++-----------------
 1 file changed, 12 insertions(+), 17 deletions(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 4e10b10d3ddd..d8938b9b794a 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1308,6 +1308,18 @@ struct gpio_chip *gpiochip_find(void *data,
 }
 EXPORT_SYMBOL_GPL(gpiochip_find);
 
+static int gpiochip_match_name(struct gpio_chip *chip, void *data)
+{
+	const char *name = data;
+
+	return !strcmp(chip->label, name);
+}
+
+static struct gpio_chip *find_chip_by_name(const char *name)
+{
+	return gpiochip_find((void *)name, gpiochip_match_name);
+}
+
 #ifdef CONFIG_PINCTRL
 
 /**
@@ -2260,23 +2272,6 @@ void gpiod_add_table(struct gpiod_lookup *table, size_t size)
 	mutex_unlock(&gpio_lookup_lock);
 }
 
-/*
- * Caller must have a acquired gpio_lookup_lock
- */
-static struct gpio_chip *find_chip_by_name(const char *name)
-{
-	struct gpio_chip *chip = NULL;
-
-	list_for_each_entry(chip, &gpio_lookup_list, list) {
-		if (chip->label == NULL)
-			continue;
-		if (!strcmp(chip->label, name))
-			break;
-	}
-
-	return chip;
-}
-
 #ifdef CONFIG_OF
 static struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
 				      unsigned int idx, unsigned long *flags)
-- 
cgit 


From 53e7cac35db5941f42221314c33693e71ffa496b Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Sat, 16 Nov 2013 21:44:52 +0900
Subject: gpiolib: use dedicated flags for GPIO properties

GPIO mapping properties were defined using the GPIOF_* flags, which are
declared in linux/gpio.h. This file is not included when using the
GPIO descriptor interface.

This patch declares the flags that can be used as GPIO mappings
properties in linux/gpio/driver.h, and uses them in gpiolib, so that no
deprecated declarations are used by the GPIO descriptor interface.

This patch also allows GPIO_OPEN_DRAIN and GPIO_OPEN_SOURCE to be
specified as GPIO mapping properties.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpiolib.c      | 22 +++++++++++++++-------
 include/linux/gpio/driver.h | 11 +++++++++--
 2 files changed, 24 insertions(+), 9 deletions(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index d8938b9b794a..490198365ce4 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -14,6 +14,7 @@
 #include <linux/idr.h>
 #include <linux/slab.h>
 #include <linux/acpi.h>
+#include <linux/gpio/driver.h>
 
 #define CREATE_TRACE_POINTS
 #include <trace/events/gpio.h>
@@ -2274,7 +2275,8 @@ void gpiod_add_table(struct gpiod_lookup *table, size_t size)
 
 #ifdef CONFIG_OF
 static struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
-				      unsigned int idx, unsigned long *flags)
+				      unsigned int idx,
+				      enum gpio_lookup_flags *flags)
 {
 	char prop_name[32]; /* 32 is max size of property name */
 	enum of_gpio_flags of_flags;
@@ -2292,7 +2294,7 @@ static struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
 		return desc;
 
 	if (of_flags & OF_GPIO_ACTIVE_LOW)
-		*flags |= GPIOF_ACTIVE_LOW;
+		*flags |= GPIO_ACTIVE_LOW;
 
 	return desc;
 }
@@ -2305,7 +2307,8 @@ static struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
 #endif
 
 static struct gpio_desc *acpi_find_gpio(struct device *dev, const char *con_id,
-					unsigned int idx, unsigned long *flags)
+					unsigned int idx,
+					enum gpio_lookup_flags *flags)
 {
 	struct acpi_gpio_info info;
 	struct gpio_desc *desc;
@@ -2315,13 +2318,14 @@ static struct gpio_desc *acpi_find_gpio(struct device *dev, const char *con_id,
 		return desc;
 
 	if (info.gpioint && info.active_low)
-		*flags |= GPIOF_ACTIVE_LOW;
+		*flags |= GPIO_ACTIVE_LOW;
 
 	return desc;
 }
 
 static struct gpio_desc *gpiod_find(struct device *dev, const char *con_id,
-				    unsigned int idx, unsigned long *flags)
+				    unsigned int idx,
+				    enum gpio_lookup_flags *flags)
 {
 	const char *dev_id = dev ? dev_name(dev) : NULL;
 	struct gpio_desc *desc = ERR_PTR(-ENODEV);
@@ -2413,7 +2417,7 @@ struct gpio_desc *__must_check gpiod_get_index(struct device *dev,
 {
 	struct gpio_desc *desc;
 	int status;
-	unsigned long flags = 0;
+	enum gpio_lookup_flags flags = 0;
 
 	dev_dbg(dev, "GPIO lookup for consumer %s\n", con_id);
 
@@ -2439,8 +2443,12 @@ struct gpio_desc *__must_check gpiod_get_index(struct device *dev,
 	if (status < 0)
 		return ERR_PTR(status);
 
-	if (flags & GPIOF_ACTIVE_LOW)
+	if (flags & GPIO_ACTIVE_LOW)
 		set_bit(FLAG_ACTIVE_LOW, &desc->flags);
+	if (flags & GPIO_OPEN_DRAIN)
+		set_bit(FLAG_OPEN_DRAIN, &desc->flags);
+	if (flags & GPIO_OPEN_SOURCE)
+		set_bit(FLAG_OPEN_SOURCE, &desc->flags);
 
 	return desc;
 }
diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 656a27efb2c8..82eac610ce1a 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -125,6 +125,13 @@ extern struct gpio_chip *gpiochip_find(void *data,
 int gpiod_lock_as_irq(struct gpio_desc *desc);
 void gpiod_unlock_as_irq(struct gpio_desc *desc);
 
+enum gpio_lookup_flags {
+	GPIO_ACTIVE_HIGH = (0 << 0),
+	GPIO_ACTIVE_LOW = (1 << 0),
+	GPIO_OPEN_DRAIN = (1 << 1),
+	GPIO_OPEN_SOURCE = (1 << 2),
+};
+
 /**
  * Lookup table for associating GPIOs to specific devices and functions using
  * platform data.
@@ -152,9 +159,9 @@ struct gpiod_lookup {
 	 */
 	unsigned int idx;
 	/*
-	 * mask of GPIOF_* values
+	 * mask of GPIO_* values
 	 */
-	unsigned long flags;
+	enum gpio_lookup_flags flags;
 };
 
 /*
-- 
cgit 


From d535922691fc026479fcc03e78ac3d931a54e75a Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 7 Nov 2013 10:50:19 +0300
Subject: gpio: mvebu: make mvchip->irqbase signed for error handling

There is a bug in mvebu_gpio_probe() where we do:

	mvchip->irqbase = irq_alloc_descs(-1, 0, ngpios, -1);
	if (mvchip->irqbase < 0) {

The problem is that mvchip->irqbase is unsigned so the error handling
doesn't work.  I have changed it to be a regular int.

Cc: stable@vger.kernel.org
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-mvebu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index 3c3321f94053..db3129043e63 100644
--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -79,7 +79,7 @@ struct mvebu_gpio_chip {
 	spinlock_t	   lock;
 	void __iomem	  *membase;
 	void __iomem	  *percpu_membase;
-	unsigned int       irqbase;
+	int		   irqbase;
 	struct irq_domain *domain;
 	int                soc_variant;
 };
-- 
cgit 


From bfea603bc54c0a736d45bc60b188a8cdae9aaaa3 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 7 Nov 2013 10:51:34 +0300
Subject: gpio: msm: make msm_gpio.summary_irq signed for error handling

There is a bug in msm_gpio_probe() where we do:

	msm_gpio.summary_irq = platform_get_irq(pdev, 0);
	if (msm_gpio.summary_irq < 0) {

The problem is that "msm_gpio.summary_irq" is unsigned so the error
handling doesn't work.  I've fixed it by making it signed.

Fixes: 43f68444bce7 ('gpio: msm: Add device tree and irqdomain support for gpio-msm-v2')

Cc: stable@vger.kernel.org
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-msm-v2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-msm-v2.c b/drivers/gpio/gpio-msm-v2.c
index f7a0cc4da950..7b37300973db 100644
--- a/drivers/gpio/gpio-msm-v2.c
+++ b/drivers/gpio/gpio-msm-v2.c
@@ -102,7 +102,7 @@ struct msm_gpio_dev {
 	DECLARE_BITMAP(wake_irqs, MAX_NR_GPIO);
 	DECLARE_BITMAP(dual_edge_irqs, MAX_NR_GPIO);
 	struct irq_domain *domain;
-	unsigned int summary_irq;
+	int summary_irq;
 	void __iomem *msm_tlmm_base;
 };
 
-- 
cgit 


From 0c8aab8e65e450f2bfea494c1b6a86ded653f88c Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 7 Nov 2013 10:56:51 +0300
Subject: gpio: rcar: NULL dereference on error in probe()

It's not obvious from the label name but "err1" tries to release
"p->irq_domain" which leads to a NULL dereference.

Fixes: 119f5e448d32 ('gpio: Renesas R-Car GPIO driver V3')

Cc: stable@vger.kernel.org
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-rcar.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-rcar.c b/drivers/gpio/gpio-rcar.c
index d3f15ae93bd3..fe088a30567a 100644
--- a/drivers/gpio/gpio-rcar.c
+++ b/drivers/gpio/gpio-rcar.c
@@ -381,7 +381,7 @@ static int gpio_rcar_probe(struct platform_device *pdev)
 	if (!p->irq_domain) {
 		ret = -ENXIO;
 		dev_err(&pdev->dev, "cannot initialize irq domain\n");
-		goto err1;
+		goto err0;
 	}
 
 	if (devm_request_irq(&pdev->dev, irq->start,
-- 
cgit 


From 61c6375d55235e67d15b4a12cfe90d02710cef5e Mon Sep 17 00:00:00 2001
From: Michal Nazarewicz <mina86@mina86.com>
Date: Wed, 13 Nov 2013 21:20:39 +0100
Subject: gpio: fix memory leak in error path

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpiolib.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 490198365ce4..14ab16fbaad5 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -1354,8 +1354,10 @@ int gpiochip_add_pingroup_range(struct gpio_chip *chip,
 	ret = pinctrl_get_group_pins(pctldev, pin_group,
 					&pin_range->range.pins,
 					&pin_range->range.npins);
-	if (ret < 0)
+	if (ret < 0) {
+		kfree(pin_range);
 		return ret;
+	}
 
 	pinctrl_add_gpio_range(pctldev, &pin_range->range);
 
-- 
cgit 


From 209e64f9ed28e4e686c3dfb0ed89069849d679c6 Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Tue, 19 Nov 2013 10:37:29 +0900
Subject: gpiolib: fix of_find_gpio() when OF not defined

The prototype for static GPIO lookup functions has been updated to use
an explicit type for GPIO lookup flags. Unfortunately the definition of
of_find_gpio() when CONFIG_OF is not defined has been omitted, which
triggers a warning. This patch fixes this.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpiolib.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 14ab16fbaad5..ac53a9593662 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -2302,7 +2302,8 @@ static struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
 }
 #else
 static struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id,
-				      unsigned int idx, unsigned long *flags)
+				      unsigned int idx,
+				      enum gpio_lookup_flags *flags)
 {
 	return ERR_PTR(-ENODEV);
 }
-- 
cgit 


From 41ad730e5d2cbad29e64764db2929707a4a883e2 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Tue, 19 Nov 2013 15:31:20 +0800
Subject: gpio: ucb1400: Add MODULE_ALIAS

This driver can be built as a module now.
Add MODULE_ALIAS to support module auto-loading.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-ucb1400.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpio/gpio-ucb1400.c b/drivers/gpio/gpio-ucb1400.c
index 1a605f2a0f55..06fb5cf99ded 100644
--- a/drivers/gpio/gpio-ucb1400.c
+++ b/drivers/gpio/gpio-ucb1400.c
@@ -105,3 +105,4 @@ module_platform_driver(ucb1400_gpio_driver);
 
 MODULE_DESCRIPTION("Philips UCB1400 GPIO driver");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:ucb1400_gpio");
-- 
cgit 


From 38d321c899457be111f1a1bcd8c8d1ca18772072 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 8 Nov 2013 02:01:38 -0800
Subject: pinctrl: rockchip: testing the wrong variable

There is a copy and paste bug so we test "info->reg_base" instead of
"info->reg_pull".

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-rockchip.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index e939c28cbf1f..fe2ec1bdf56e 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -1453,8 +1453,8 @@ static int rockchip_pinctrl_probe(struct platform_device *pdev)
 	if (ctrl->type == RK3188) {
 		res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
 		info->reg_pull = devm_ioremap_resource(&pdev->dev, res);
-		if (IS_ERR(info->reg_base))
-			return PTR_ERR(info->reg_base);
+		if (IS_ERR(info->reg_pull))
+			return PTR_ERR(info->reg_pull);
 	}
 
 	ret = rockchip_gpiolib_register(pdev, info);
-- 
cgit 


From c590854dffc06095f38a63b3bdb9e4370282a53e Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Sun, 10 Nov 2013 02:35:56 +0300
Subject: pinctrl: abx500: fix some more bitwise AND tests

I sent a patch to fix some bitwise AND tests but I guess I missed some.
Sorry about that.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-abx500.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-abx500.c b/drivers/pinctrl/pinctrl-abx500.c
index 4780959e11d4..5183e7bb8de3 100644
--- a/drivers/pinctrl/pinctrl-abx500.c
+++ b/drivers/pinctrl/pinctrl-abx500.c
@@ -418,7 +418,7 @@ static int abx500_set_mode(struct pinctrl_dev *pctldev, struct gpio_chip *chip,
 			ret = abx500_gpio_set_bits(chip,
 					AB8500_GPIO_ALTFUN_REG,
 					af.alt_bit1,
-					!!(af.alta_val && BIT(0)));
+					!!(af.alta_val & BIT(0)));
 			if (ret < 0)
 				goto out;
 
@@ -439,7 +439,7 @@ static int abx500_set_mode(struct pinctrl_dev *pctldev, struct gpio_chip *chip,
 			goto out;
 
 		ret = abx500_gpio_set_bits(chip, AB8500_GPIO_ALTFUN_REG,
-				af.alt_bit1, !!(af.altb_val && BIT(0)));
+				af.alt_bit1, !!(af.altb_val & BIT(0)));
 		if (ret < 0)
 			goto out;
 
@@ -462,7 +462,7 @@ static int abx500_set_mode(struct pinctrl_dev *pctldev, struct gpio_chip *chip,
 			goto out;
 
 		ret = abx500_gpio_set_bits(chip, AB8500_GPIO_ALTFUN_REG,
-				af.alt_bit2, !!(af.altc_val && BIT(1)));
+				af.alt_bit2, !!(af.altc_val & BIT(1)));
 		break;
 
 	default:
-- 
cgit 


From d32c3e260f95f5d8ed42c64dc2d9ec79cc36da1e Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 14 Nov 2013 11:22:54 +0300
Subject: pinctrl: rockchip: missing unlock on error in rockchip_set_pull()

We need to unlock here before returning -EINVAL.

Fixes: 6ca5274d1d12 ('pinctrl: rockchip: add rk3188 specifics')

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-rockchip.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index fe2ec1bdf56e..46dddc159286 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -504,6 +504,7 @@ static int rockchip_set_pull(struct rockchip_pin_bank *bank,
 			data |= (3 << bit);
 			break;
 		default:
+			spin_unlock_irqrestore(&bank->slock, flags);
 			dev_err(info->dev, "unsupported pull setting %d\n",
 				pull);
 			return -EINVAL;
-- 
cgit 


From 71a86ef055f569b93bc6901f007bdf447dbf515f Mon Sep 17 00:00:00 2001
From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Thu, 21 Nov 2013 16:22:17 +0100
Subject: s390/uaccess: add missing page table walk range check

When translating a user space address, the address must be checked against
the ASCE limit of the process. If the address is larger than the maximum
address that is reachable with the ASCE, an ASCE type exception must be
generated.

The current code simply ignored the higher order bits. This resulted in an
address wrap around in user space instead of an exception in user space.

Cc: stable@vger.kernel.org # v3.9+
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/lib/uaccess_pt.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/s390/lib/uaccess_pt.c b/arch/s390/lib/uaccess_pt.c
index 97e03caf7825..dbdab3e7a1a6 100644
--- a/arch/s390/lib/uaccess_pt.c
+++ b/arch/s390/lib/uaccess_pt.c
@@ -78,11 +78,14 @@ static size_t copy_in_kernel(size_t count, void __user *to,
  * contains the (negative) exception code.
  */
 #ifdef CONFIG_64BIT
+
 static unsigned long follow_table(struct mm_struct *mm,
 				  unsigned long address, int write)
 {
 	unsigned long *table = (unsigned long *)__pa(mm->pgd);
 
+	if (unlikely(address > mm->context.asce_limit - 1))
+		return -0x38UL;
 	switch (mm->context.asce_bits & _ASCE_TYPE_MASK) {
 	case _ASCE_TYPE_REGION1:
 		table = table + ((address >> 53) & 0x7ff);
-- 
cgit 


From 79c74ecbebf76732f91b82a62ce7fc8a88326962 Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Fri, 22 Nov 2013 10:04:53 +0100
Subject: s390/time,vdso: convert to the new update_vsyscall interface

Switch to the improved update_vsyscall interface that provides
sub-nanosecond precision for gettimeofday and clock_gettime.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/Kconfig                       |  2 +-
 arch/s390/include/asm/vdso.h            |  5 +++--
 arch/s390/kernel/asm-offsets.c          |  3 ++-
 arch/s390/kernel/time.c                 | 27 ++++++++++++++++++---------
 arch/s390/kernel/vdso32/clock_gettime.S | 30 ++++++++++++++++--------------
 arch/s390/kernel/vdso32/gettimeofday.S  |  9 +++++----
 arch/s390/kernel/vdso64/clock_gettime.S | 22 ++++++++++++----------
 arch/s390/kernel/vdso64/gettimeofday.S  |  9 +++++----
 8 files changed, 62 insertions(+), 45 deletions(-)

diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 314fced4fc14..5877e71901b3 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -101,7 +101,7 @@ config S390
 	select GENERIC_CPU_DEVICES if !SMP
 	select GENERIC_FIND_FIRST_BIT
 	select GENERIC_SMP_IDLE_THREAD
-	select GENERIC_TIME_VSYSCALL_OLD
+	select GENERIC_TIME_VSYSCALL
 	select HAVE_ALIGNED_STRUCT_PAGE if SLUB
 	select HAVE_ARCH_JUMP_LABEL if !MARCH_G5
 	select HAVE_ARCH_SECCOMP_FILTER
diff --git a/arch/s390/include/asm/vdso.h b/arch/s390/include/asm/vdso.h
index a73eb2e1e918..bc9746a7d47c 100644
--- a/arch/s390/include/asm/vdso.h
+++ b/arch/s390/include/asm/vdso.h
@@ -26,8 +26,9 @@ struct vdso_data {
 	__u64 wtom_clock_nsec;		/*				0x28 */
 	__u32 tz_minuteswest;		/* Minutes west of Greenwich	0x30 */
 	__u32 tz_dsttime;		/* Type of dst correction	0x34 */
-	__u32 ectg_available;
-	__u32 ntp_mult;			/* NTP adjusted multiplier	0x3C */
+	__u32 ectg_available;		/* ECTG instruction present	0x38 */
+	__u32 tk_mult;			/* Mult. used for xtime_nsec	0x3c */
+	__u32 tk_shift;			/* Shift used for xtime_nsec	0x40 */
 };
 
 struct vdso_per_cpu_data {
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index 2416138ebd3e..496116cd65ec 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -65,7 +65,8 @@ int main(void)
 	DEFINE(__VDSO_WTOM_NSEC, offsetof(struct vdso_data, wtom_clock_nsec));
 	DEFINE(__VDSO_TIMEZONE, offsetof(struct vdso_data, tz_minuteswest));
 	DEFINE(__VDSO_ECTG_OK, offsetof(struct vdso_data, ectg_available));
-	DEFINE(__VDSO_NTP_MULT, offsetof(struct vdso_data, ntp_mult));
+	DEFINE(__VDSO_TK_MULT, offsetof(struct vdso_data, tk_mult));
+	DEFINE(__VDSO_TK_SHIFT, offsetof(struct vdso_data, tk_shift));
 	DEFINE(__VDSO_ECTG_BASE, offsetof(struct vdso_per_cpu_data, ectg_timer_base));
 	DEFINE(__VDSO_ECTG_USER, offsetof(struct vdso_per_cpu_data, ectg_user_time));
 	/* constants used by the vdso */
diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 064c3082ab33..60a508a9b981 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -221,21 +221,30 @@ struct clocksource * __init clocksource_default_clock(void)
 	return &clocksource_tod;
 }
 
-void update_vsyscall_old(struct timespec *wall_time, struct timespec *wtm,
-			struct clocksource *clock, u32 mult)
+void update_vsyscall(struct timekeeper *tk)
 {
-	if (clock != &clocksource_tod)
+	u64 nsecps;
+
+	if (tk->clock != &clocksource_tod)
 		return;
 
 	/* Make userspace gettimeofday spin until we're done. */
 	++vdso_data->tb_update_count;
 	smp_wmb();
-	vdso_data->xtime_tod_stamp = clock->cycle_last;
-	vdso_data->xtime_clock_sec = wall_time->tv_sec;
-	vdso_data->xtime_clock_nsec = wall_time->tv_nsec;
-	vdso_data->wtom_clock_sec = wtm->tv_sec;
-	vdso_data->wtom_clock_nsec = wtm->tv_nsec;
-	vdso_data->ntp_mult = mult;
+	vdso_data->xtime_tod_stamp = tk->clock->cycle_last;
+	vdso_data->xtime_clock_sec = tk->xtime_sec;
+	vdso_data->xtime_clock_nsec = tk->xtime_nsec;
+	vdso_data->wtom_clock_sec =
+		tk->xtime_sec + tk->wall_to_monotonic.tv_sec;
+	vdso_data->wtom_clock_nsec = tk->xtime_nsec +
+		+ (tk->wall_to_monotonic.tv_nsec << tk->shift);
+	nsecps = (u64) NSEC_PER_SEC << tk->shift;
+	while (vdso_data->wtom_clock_nsec >= nsecps) {
+		vdso_data->wtom_clock_nsec -= nsecps;
+		vdso_data->wtom_clock_sec++;
+	}
+	vdso_data->tk_mult = tk->mult;
+	vdso_data->tk_shift = tk->shift;
 	smp_wmb();
 	++vdso_data->tb_update_count;
 }
diff --git a/arch/s390/kernel/vdso32/clock_gettime.S b/arch/s390/kernel/vdso32/clock_gettime.S
index b2224e0b974c..5be8e472f57d 100644
--- a/arch/s390/kernel/vdso32/clock_gettime.S
+++ b/arch/s390/kernel/vdso32/clock_gettime.S
@@ -38,25 +38,26 @@ __kernel_clock_gettime:
 	sl	%r1,__VDSO_XTIME_STAMP+4(%r5)
 	brc	3,2f
 	ahi	%r0,-1
-2:	ms	%r0,__VDSO_NTP_MULT(%r5)	/* cyc2ns(clock,cycle_delta) */
+2:	ms	%r0,__VDSO_TK_MULT(%r5)		/*  * tk->mult */
 	lr	%r2,%r0
-	l	%r0,__VDSO_NTP_MULT(%r5)
+	l	%r0,__VDSO_TK_MULT(%r5)
 	ltr	%r1,%r1
 	mr	%r0,%r0
 	jnm	3f
-	a	%r0,__VDSO_NTP_MULT(%r5)
+	a	%r0,__VDSO_TK_MULT(%r5)
 3:	alr	%r0,%r2
-	srdl	%r0,12
-	al	%r0,__VDSO_XTIME_NSEC(%r5)	/*  + xtime */
+	al	%r0,__VDSO_XTIME_NSEC(%r5)	/*  + tk->xtime_nsec */
 	al	%r1,__VDSO_XTIME_NSEC+4(%r5)
 	brc	12,4f
 	ahi	%r0,1
-4:	l	%r2,__VDSO_XTIME_SEC+4(%r5)
-	al	%r0,__VDSO_WTOM_NSEC(%r5)	/*  + wall_to_monotonic */
+4:	al	%r0,__VDSO_WTOM_NSEC(%r5)	/*  + wall_to_monotonic.nsec */
 	al	%r1,__VDSO_WTOM_NSEC+4(%r5)
 	brc	12,5f
 	ahi	%r0,1
-5:	al	%r2,__VDSO_WTOM_SEC+4(%r5)
+5:	l	%r2,__VDSO_TK_SHIFT(%r5)	/* Timekeeper shift */
+	srdl	%r0,0(%r2)			/*  >> tk->shift */
+	l	%r2,__VDSO_XTIME_SEC+4(%r5)
+	al	%r2,__VDSO_WTOM_SEC+4(%r5)
 	cl	%r4,__VDSO_UPD_COUNT+4(%r5)	/* check update counter */
 	jne	1b
 	basr	%r5,0
@@ -86,20 +87,21 @@ __kernel_clock_gettime:
 	sl	%r1,__VDSO_XTIME_STAMP+4(%r5)
 	brc	3,12f
 	ahi	%r0,-1
-12:	ms	%r0,__VDSO_NTP_MULT(%r5)	/* cyc2ns(clock,cycle_delta) */
+12:	ms	%r0,__VDSO_TK_MULT(%r5)		/*  * tk->mult */
 	lr	%r2,%r0
-	l	%r0,__VDSO_NTP_MULT(%r5)
+	l	%r0,__VDSO_TK_MULT(%r5)
 	ltr	%r1,%r1
 	mr	%r0,%r0
 	jnm	13f
-	a	%r0,__VDSO_NTP_MULT(%r5)
+	a	%r0,__VDSO_TK_MULT(%r5)
 13:	alr	%r0,%r2
-	srdl	%r0,12
-	al	%r0,__VDSO_XTIME_NSEC(%r5)	/*  + xtime */
+	al	%r0,__VDSO_XTIME_NSEC(%r5)	/*  + tk->xtime_nsec */
 	al	%r1,__VDSO_XTIME_NSEC+4(%r5)
 	brc	12,14f
 	ahi	%r0,1
-14:	l	%r2,__VDSO_XTIME_SEC+4(%r5)
+14:	l	%r2,__VDSO_TK_SHIFT(%r5)	/* Timekeeper shift */
+	srdl	%r0,0(%r2)			/*  >> tk->shift */
+	l	%r2,__VDSO_XTIME_SEC+4(%r5)
 	cl	%r4,__VDSO_UPD_COUNT+4(%r5)	/* check update counter */
 	jne	11b
 	basr	%r5,0
diff --git a/arch/s390/kernel/vdso32/gettimeofday.S b/arch/s390/kernel/vdso32/gettimeofday.S
index 2d3633175e3b..fd621a950f7c 100644
--- a/arch/s390/kernel/vdso32/gettimeofday.S
+++ b/arch/s390/kernel/vdso32/gettimeofday.S
@@ -35,15 +35,14 @@ __kernel_gettimeofday:
 	sl	%r1,__VDSO_XTIME_STAMP+4(%r5)
 	brc	3,3f
 	ahi	%r0,-1
-3:	ms	%r0,__VDSO_NTP_MULT(%r5)	/* cyc2ns(clock,cycle_delta) */
+3:	ms	%r0,__VDSO_TK_MULT(%r5)		/*  * tk->mult */
 	st	%r0,24(%r15)
-	l	%r0,__VDSO_NTP_MULT(%r5)
+	l	%r0,__VDSO_TK_MULT(%r5)
 	ltr	%r1,%r1
 	mr	%r0,%r0
 	jnm	4f
-	a	%r0,__VDSO_NTP_MULT(%r5)
+	a	%r0,__VDSO_TK_MULT(%r5)
 4:	al	%r0,24(%r15)
-	srdl	%r0,12
 	al	%r0,__VDSO_XTIME_NSEC(%r5)	/*  + xtime */
 	al	%r1,__VDSO_XTIME_NSEC+4(%r5)
 	brc	12,5f
@@ -51,6 +50,8 @@ __kernel_gettimeofday:
 5:	mvc	24(4,%r15),__VDSO_XTIME_SEC+4(%r5)
 	cl	%r4,__VDSO_UPD_COUNT+4(%r5)	/* check update counter */
 	jne	1b
+	l	%r4,__VDSO_TK_SHIFT(%r5)	/* Timekeeper shift */
+	srdl	%r0,0(%r4)			/*  >> tk->shift */
 	l	%r4,24(%r15)			/* get tv_sec from stack */
 	basr	%r5,0
 6:	ltr	%r0,%r0
diff --git a/arch/s390/kernel/vdso64/clock_gettime.S b/arch/s390/kernel/vdso64/clock_gettime.S
index d46c95ed5f19..0add1072ba30 100644
--- a/arch/s390/kernel/vdso64/clock_gettime.S
+++ b/arch/s390/kernel/vdso64/clock_gettime.S
@@ -34,14 +34,15 @@ __kernel_clock_gettime:
 	tmll	%r4,0x0001			/* pending update ? loop */
 	jnz	0b
 	stck	48(%r15)			/* Store TOD clock */
+	lgf	%r2,__VDSO_TK_SHIFT(%r5)	/* Timekeeper shift */
+	lg	%r0,__VDSO_XTIME_SEC(%r5)	/* tk->xtime_sec */
+	alg	%r0,__VDSO_WTOM_SEC(%r5)	/*  + wall_to_monotonic.sec */
 	lg	%r1,48(%r15)
 	sg	%r1,__VDSO_XTIME_STAMP(%r5)	/* TOD - cycle_last */
-	msgf	%r1,__VDSO_NTP_MULT(%r5)	/*  * NTP adjustment */
-	srlg	%r1,%r1,12			/* cyc2ns(clock,cycle_delta) */
-	alg	%r1,__VDSO_XTIME_NSEC(%r5)	/*  + xtime */
-	lg	%r0,__VDSO_XTIME_SEC(%r5)
-	alg	%r1,__VDSO_WTOM_NSEC(%r5)	/*  + wall_to_monotonic */
-	alg	%r0,__VDSO_WTOM_SEC(%r5)
+	msgf	%r1,__VDSO_TK_MULT(%r5)		/*  * tk->mult */
+	alg	%r1,__VDSO_XTIME_NSEC(%r5)	/*  + tk->xtime_nsec */
+	alg	%r1,__VDSO_WTOM_NSEC(%r5)	/*  + wall_to_monotonic.nsec */
+	srlg	%r1,%r1,0(%r2)			/*  >> tk->shift */
 	clg	%r4,__VDSO_UPD_COUNT(%r5)	/* check update counter */
 	jne	0b
 	larl	%r5,13f
@@ -62,12 +63,13 @@ __kernel_clock_gettime:
 	tmll	%r4,0x0001			/* pending update ? loop */
 	jnz	5b
 	stck	48(%r15)			/* Store TOD clock */
+	lgf	%r2,__VDSO_TK_SHIFT(%r5)	/* Timekeeper shift */
 	lg	%r1,48(%r15)
 	sg	%r1,__VDSO_XTIME_STAMP(%r5)	/* TOD - cycle_last */
-	msgf	%r1,__VDSO_NTP_MULT(%r5)	/*  * NTP adjustment */
-	srlg	%r1,%r1,12			/* cyc2ns(clock,cycle_delta) */
-	alg	%r1,__VDSO_XTIME_NSEC(%r5)	/*  + xtime */
-	lg	%r0,__VDSO_XTIME_SEC(%r5)
+	msgf	%r1,__VDSO_TK_MULT(%r5)		/*  * tk->mult */
+	alg	%r1,__VDSO_XTIME_NSEC(%r5)	/*  + tk->xtime_nsec */
+	srlg	%r1,%r1,0(%r2)			/*  >> tk->shift */
+	lg	%r0,__VDSO_XTIME_SEC(%r5)	/* tk->xtime_sec */
 	clg	%r4,__VDSO_UPD_COUNT(%r5)	/* check update counter */
 	jne	5b
 	larl	%r5,13f
diff --git a/arch/s390/kernel/vdso64/gettimeofday.S b/arch/s390/kernel/vdso64/gettimeofday.S
index 36ee674722ec..d0860d1d0ccc 100644
--- a/arch/s390/kernel/vdso64/gettimeofday.S
+++ b/arch/s390/kernel/vdso64/gettimeofday.S
@@ -31,12 +31,13 @@ __kernel_gettimeofday:
 	stck	48(%r15)			/* Store TOD clock */
 	lg	%r1,48(%r15)
 	sg	%r1,__VDSO_XTIME_STAMP(%r5)	/* TOD - cycle_last */
-	msgf	%r1,__VDSO_NTP_MULT(%r5)	/*  * NTP adjustment */
-	srlg	%r1,%r1,12			/* cyc2ns(clock,cycle_delta) */
-	alg	%r1,__VDSO_XTIME_NSEC(%r5)	/*  + xtime.tv_nsec */
-	lg	%r0,__VDSO_XTIME_SEC(%r5)	/* xtime.tv_sec */
+	msgf	%r1,__VDSO_TK_MULT(%r5)		/*  * tk->mult */
+	alg	%r1,__VDSO_XTIME_NSEC(%r5)	/*  + tk->xtime_nsec */
+	lg	%r0,__VDSO_XTIME_SEC(%r5)	/* tk->xtime_sec */
 	clg	%r4,__VDSO_UPD_COUNT(%r5)	/* check update counter */
 	jne	0b
+	lgf	%r5,__VDSO_TK_SHIFT(%r5)	/* Timekeeper shift */
+	srlg	%r1,%r1,0(%r5)			/*  >> tk->shift */
 	larl	%r5,5f
 2:	clg	%r1,0(%r5)
 	jl	3f
-- 
cgit 


From 8adbf78ec4839c1dc4ff20c9a1f332a7bc99e6e6 Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Fri, 22 Nov 2013 12:04:18 +0100
Subject: s390,time: revert direct ktime path for s390 clockevent device

Git commit 4f37a68cdaf6dea833cfdded2a3e0c47c0f006da
"s390: Use direct ktime path for s390 clockevent device" makes use
of the CLOCK_EVT_FEAT_KTIME clockevent option to avoid the delta
calculation with ktime_get() in clockevents_program_event and the
get_tod_clock() in s390_next_event. This is based on the assumption
that the difference between the internal ktime and the hardware
clock is reflected in the wall_to_monotonic delta. But this is not
true, the ntp corrections are applied via changes to the tk->mult
multiplier and this is not reflected in wall_to_monotonic.

In theory this could be solved by using the raw monotonic clock
but it is simpler to switch back to the standard clock delta
calculation.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/time.c | 19 ++++---------------
 1 file changed, 4 insertions(+), 15 deletions(-)

diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c
index 60a508a9b981..dd95f1631621 100644
--- a/arch/s390/kernel/time.c
+++ b/arch/s390/kernel/time.c
@@ -108,20 +108,10 @@ static void fixup_clock_comparator(unsigned long long delta)
 	set_clock_comparator(S390_lowcore.clock_comparator);
 }
 
-static int s390_next_ktime(ktime_t expires,
+static int s390_next_event(unsigned long delta,
 			   struct clock_event_device *evt)
 {
-	struct timespec ts;
-	u64 nsecs;
-
-	ts.tv_sec = ts.tv_nsec = 0;
-	monotonic_to_bootbased(&ts);
-	nsecs = ktime_to_ns(ktime_add(timespec_to_ktime(ts), expires));
-	do_div(nsecs, 125);
-	S390_lowcore.clock_comparator = sched_clock_base_cc + (nsecs << 9);
-	/* Program the maximum value if we have an overflow (== year 2042) */
-	if (unlikely(S390_lowcore.clock_comparator < sched_clock_base_cc))
-		S390_lowcore.clock_comparator = -1ULL;
+	S390_lowcore.clock_comparator = get_tod_clock() + delta;
 	set_clock_comparator(S390_lowcore.clock_comparator);
 	return 0;
 }
@@ -146,15 +136,14 @@ void init_cpu_timer(void)
 	cpu = smp_processor_id();
 	cd = &per_cpu(comparators, cpu);
 	cd->name		= "comparator";
-	cd->features		= CLOCK_EVT_FEAT_ONESHOT |
-				  CLOCK_EVT_FEAT_KTIME;
+	cd->features		= CLOCK_EVT_FEAT_ONESHOT;
 	cd->mult		= 16777;
 	cd->shift		= 12;
 	cd->min_delta_ns	= 1;
 	cd->max_delta_ns	= LONG_MAX;
 	cd->rating		= 400;
 	cd->cpumask		= cpumask_of(cpu);
-	cd->set_next_ktime	= s390_next_ktime;
+	cd->set_next_event	= s390_next_event;
 	cd->set_mode		= s390_set_mode;
 
 	clockevents_register_device(cd);
-- 
cgit 


From 127581b64b432804948535d49847b36366b9ff64 Mon Sep 17 00:00:00 2001
From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Fri, 22 Nov 2013 15:14:23 +0100
Subject: s390/mm: handle asce-type exceptions as normal page fault

Git commit 9e34f2686bb088b211b6cac8772e1f644c6180f8
"s390/mm,tlb: tlb flush on page table upgrade fixup" removed the
exception handler for the asce-type exception. This is incorrect
as the user-copy with MVCOS can cause asce-type exceptions in
the kernel if a user pointer is too large. Those need to be
handled with do_no_context to branch to the fixup in the
user-copy code.

The simplest fix for this problem is to call do_dat_exception for
asce-type excpetions, as there is no vma for the address the code
will handle the exception correctly.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---
 arch/s390/kernel/pgm_check.S | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/s390/kernel/pgm_check.S b/arch/s390/kernel/pgm_check.S
index 4a460c44e17e..813ec7260878 100644
--- a/arch/s390/kernel/pgm_check.S
+++ b/arch/s390/kernel/pgm_check.S
@@ -78,7 +78,7 @@ PGM_CHECK_DEFAULT			/* 34 */
 PGM_CHECK_DEFAULT			/* 35 */
 PGM_CHECK_DEFAULT			/* 36 */
 PGM_CHECK_DEFAULT			/* 37 */
-PGM_CHECK_DEFAULT			/* 38 */
+PGM_CHECK_64BIT(do_dat_exception)	/* 38 */
 PGM_CHECK_64BIT(do_dat_exception)	/* 39 */
 PGM_CHECK_64BIT(do_dat_exception)	/* 3a */
 PGM_CHECK_64BIT(do_dat_exception)	/* 3b */
-- 
cgit 


From b6f8f16f41d92861621b043389ef49de1c52d613 Mon Sep 17 00:00:00 2001
From: Roberto Sassu <roberto.sassu@polito.it>
Date: Fri, 8 Nov 2013 19:21:39 +0100
Subject: ima: do not include field length in template digest calc for ima
 template

To maintain compatibility with userspace tools, the field length must not
be included in the template digest calculation for the 'ima' template.

Fixes commit: a71dc65 ima: switch to new template management mechanism

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 security/integrity/ima/ima.h        |  3 ++-
 security/integrity/ima/ima_api.c    |  1 +
 security/integrity/ima/ima_crypto.c | 17 ++++++++++++-----
 3 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index bf03c6a16cc8..a21cf706d213 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -97,7 +97,8 @@ int ima_add_template_entry(struct ima_template_entry *entry, int violation,
 			   const char *op, struct inode *inode,
 			   const unsigned char *filename);
 int ima_calc_file_hash(struct file *file, struct ima_digest_data *hash);
-int ima_calc_field_array_hash(struct ima_field_data *field_data, int num_fields,
+int ima_calc_field_array_hash(struct ima_field_data *field_data,
+			      struct ima_template_desc *desc, int num_fields,
 			      struct ima_digest_data *hash);
 int __init ima_calc_boot_aggregate(struct ima_digest_data *hash);
 void ima_add_violation(struct file *file, const unsigned char *filename,
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index 0e7540863fc2..80374842fe0b 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -94,6 +94,7 @@ int ima_store_template(struct ima_template_entry *entry,
 		/* this function uses default algo */
 		hash.hdr.algo = HASH_ALGO_SHA1;
 		result = ima_calc_field_array_hash(&entry->template_data[0],
+						   entry->template_desc,
 						   num_fields, &hash.hdr);
 		if (result < 0) {
 			integrity_audit_msg(AUDIT_INTEGRITY_PCR, inode,
diff --git a/security/integrity/ima/ima_crypto.c b/security/integrity/ima/ima_crypto.c
index 676e0292dfec..fdf60def52e9 100644
--- a/security/integrity/ima/ima_crypto.c
+++ b/security/integrity/ima/ima_crypto.c
@@ -140,6 +140,7 @@ int ima_calc_file_hash(struct file *file, struct ima_digest_data *hash)
  * Calculate the hash of template data
  */
 static int ima_calc_field_array_hash_tfm(struct ima_field_data *field_data,
+					 struct ima_template_desc *td,
 					 int num_fields,
 					 struct ima_digest_data *hash,
 					 struct crypto_shash *tfm)
@@ -160,9 +161,13 @@ static int ima_calc_field_array_hash_tfm(struct ima_field_data *field_data,
 		return rc;
 
 	for (i = 0; i < num_fields; i++) {
-		rc = crypto_shash_update(&desc.shash,
-					 (const u8 *) &field_data[i].len,
-					 sizeof(field_data[i].len));
+		if (strcmp(td->name, IMA_TEMPLATE_IMA_NAME) != 0) {
+			rc = crypto_shash_update(&desc.shash,
+						(const u8 *) &field_data[i].len,
+						sizeof(field_data[i].len));
+			if (rc)
+				break;
+		}
 		rc = crypto_shash_update(&desc.shash, field_data[i].data,
 					 field_data[i].len);
 		if (rc)
@@ -175,7 +180,8 @@ static int ima_calc_field_array_hash_tfm(struct ima_field_data *field_data,
 	return rc;
 }
 
-int ima_calc_field_array_hash(struct ima_field_data *field_data, int num_fields,
+int ima_calc_field_array_hash(struct ima_field_data *field_data,
+			      struct ima_template_desc *desc, int num_fields,
 			      struct ima_digest_data *hash)
 {
 	struct crypto_shash *tfm;
@@ -185,7 +191,8 @@ int ima_calc_field_array_hash(struct ima_field_data *field_data, int num_fields,
 	if (IS_ERR(tfm))
 		return PTR_ERR(tfm);
 
-	rc = ima_calc_field_array_hash_tfm(field_data, num_fields, hash, tfm);
+	rc = ima_calc_field_array_hash_tfm(field_data, desc, num_fields,
+					   hash, tfm);
 
 	ima_free_tfm(tfm);
 
-- 
cgit 


From 3e8e5503a33577d89bdb7469b851b11f507bbed6 Mon Sep 17 00:00:00 2001
From: Roberto Sassu <roberto.sassu@polito.it>
Date: Fri, 8 Nov 2013 19:21:40 +0100
Subject: ima: do not send field length to userspace for digest of ima template

This patch defines a new value for the 'ima_show_type' enumerator
(IMA_SHOW_BINARY_NO_FIELD_LEN) to prevent that the field length
is transmitted through the 'binary_runtime_measurements' interface
for the digest field of the 'ima' template.

Fixes commit: 3ce1217 ima: define template fields library and new helpers

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
---
 security/integrity/ima/ima.h              |  3 ++-
 security/integrity/ima/ima_fs.c           | 14 +++++++++++---
 security/integrity/ima/ima_template_lib.c |  6 +++++-
 3 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index a21cf706d213..9636e17c9f5d 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -26,7 +26,8 @@
 
 #include "../integrity.h"
 
-enum ima_show_type { IMA_SHOW_BINARY, IMA_SHOW_ASCII };
+enum ima_show_type { IMA_SHOW_BINARY, IMA_SHOW_BINARY_NO_FIELD_LEN,
+		     IMA_SHOW_ASCII };
 enum tpm_pcrs { TPM_PCR0 = 0, TPM_PCR8 = 8 };
 
 /* digest size for IMA, fits SHA1 or MD5 */
diff --git a/security/integrity/ima/ima_fs.c b/security/integrity/ima/ima_fs.c
index d47a7c86a21d..db01125926bd 100644
--- a/security/integrity/ima/ima_fs.c
+++ b/security/integrity/ima/ima_fs.c
@@ -120,6 +120,7 @@ static int ima_measurements_show(struct seq_file *m, void *v)
 	struct ima_template_entry *e;
 	int namelen;
 	u32 pcr = CONFIG_IMA_MEASURE_PCR_IDX;
+	bool is_ima_template = false;
 	int i;
 
 	/* get entry */
@@ -145,14 +146,21 @@ static int ima_measurements_show(struct seq_file *m, void *v)
 	ima_putc(m, e->template_desc->name, namelen);
 
 	/* 5th:  template length (except for 'ima' template) */
-	if (strcmp(e->template_desc->name, IMA_TEMPLATE_IMA_NAME) != 0)
+	if (strcmp(e->template_desc->name, IMA_TEMPLATE_IMA_NAME) == 0)
+		is_ima_template = true;
+
+	if (!is_ima_template)
 		ima_putc(m, &e->template_data_len,
 			 sizeof(e->template_data_len));
 
 	/* 6th:  template specific data */
 	for (i = 0; i < e->template_desc->num_fields; i++) {
-		e->template_desc->fields[i]->field_show(m, IMA_SHOW_BINARY,
-							&e->template_data[i]);
+		enum ima_show_type show = IMA_SHOW_BINARY;
+		struct ima_template_field *field = e->template_desc->fields[i];
+
+		if (is_ima_template && strcmp(field->field_id, "d") == 0)
+			show = IMA_SHOW_BINARY_NO_FIELD_LEN;
+		field->field_show(m, show, &e->template_data[i]);
 	}
 	return 0;
 }
diff --git a/security/integrity/ima/ima_template_lib.c b/security/integrity/ima/ima_template_lib.c
index 6d66ad6ed265..c38adcc910fb 100644
--- a/security/integrity/ima/ima_template_lib.c
+++ b/security/integrity/ima/ima_template_lib.c
@@ -109,9 +109,12 @@ static void ima_show_template_data_binary(struct seq_file *m,
 					  enum data_formats datafmt,
 					  struct ima_field_data *field_data)
 {
-	ima_putc(m, &field_data->len, sizeof(u32));
+	if (show != IMA_SHOW_BINARY_NO_FIELD_LEN)
+		ima_putc(m, &field_data->len, sizeof(u32));
+
 	if (!field_data->len)
 		return;
+
 	ima_putc(m, field_data->data, field_data->len);
 }
 
@@ -125,6 +128,7 @@ static void ima_show_template_field_data(struct seq_file *m,
 		ima_show_template_data_ascii(m, show, datafmt, field_data);
 		break;
 	case IMA_SHOW_BINARY:
+	case IMA_SHOW_BINARY_NO_FIELD_LEN:
 		ima_show_template_data_binary(m, show, datafmt, field_data);
 		break;
 	default:
-- 
cgit 


From 2ab2b74277a86afe0dd92976db695a2bb8b93366 Mon Sep 17 00:00:00 2001
From: Mark Brown <broonie@linaro.org>
Date: Fri, 22 Nov 2013 14:17:18 +0000
Subject: ASoC: wm8990: Mark the register map as dirty when powering down

Otherwise we'll skip sync on resume.

Signed-off-by: Mark Brown <broonie@linaro.org>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
---
 sound/soc/codecs/wm8990.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/codecs/wm8990.c b/sound/soc/codecs/wm8990.c
index 253c88bb7a4c..4f05fb88bddf 100644
--- a/sound/soc/codecs/wm8990.c
+++ b/sound/soc/codecs/wm8990.c
@@ -1259,6 +1259,8 @@ static int wm8990_set_bias_level(struct snd_soc_codec *codec,
 
 		/* disable POBCTRL, SOFT_ST and BUFDCOPEN */
 		snd_soc_write(codec, WM8990_ANTIPOP2, 0x0);
+
+		codec->cache_sync = 1;
 		break;
 	}
 
-- 
cgit 


From f19e84df37bda502a2248d507a9cf2b9e693279e Mon Sep 17 00:00:00 2001
From: Steve French <smfrench@gmail.com>
Date: Sun, 24 Nov 2013 21:53:17 -0600
Subject: [CIFS] Do not use btrfs refcopy ioctl for SMB2 copy offload

Change cifs.ko to using CIFS_IOCTL_COPYCHUNK instead
of BTRFS_IOC_CLONE to avoid confusion about whether
copy-on-write is required or optional for this operation.

SMB2/SMB3 copyoffload had used the BTRFS_IOC_CLONE ioctl since
they both speed up copy by offloading the copy rather than
passing many read and write requests back and forth and both have
identical syntax (passing file handles), but for SMB2/SMB3
CopyChunk the server is not required to use copy-on-write
to make a copy of the file (although some do), and Christoph
has commented that since CopyChunk does not require
copy-on-write we should not reuse BTRFS_IOC_CLONE.

This patch renames the ioctl to use a cifs specific IOCTL
CIFS_IOCTL_COPYCHUNK.  This ioctl is particularly important
for SMB2/SMB3 since large file copy over the network otherwise
can be very slow, and with this is often more than 100 times
faster putting less load on server and client.

Note that if a copy syscall is ever introduced, depending on
its requirements/format it could end up using one of the other
three methods that CIFS/SMB2/SMB3 can do for copy offload,
but this method is particularly useful for file copy
and broadly supported (not just by Samba server).

Signed-off-by: Steve French <smfrench@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: David Disseldorp <ddiss@samba.org>
---
 fs/cifs/ioctl.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index 409b45eefe70..77492301cc2b 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -26,13 +26,15 @@
 #include <linux/mount.h>
 #include <linux/mm.h>
 #include <linux/pagemap.h>
-#include <linux/btrfs.h>
 #include "cifspdu.h"
 #include "cifsglob.h"
 #include "cifsproto.h"
 #include "cifs_debug.h"
 #include "cifsfs.h"
 
+#define CIFS_IOCTL_MAGIC	0xCF
+#define CIFS_IOC_COPYCHUNK_FILE	_IOW(CIFS_IOCTL_MAGIC, 3, int)
+
 static long cifs_ioctl_clone(unsigned int xid, struct file *dst_file,
 			unsigned long srcfd, u64 off, u64 len, u64 destoff)
 {
@@ -213,7 +215,7 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
 				cifs_dbg(FYI, "set compress flag rc %d\n", rc);
 			}
 			break;
-		case BTRFS_IOC_CLONE:
+		case CIFS_IOC_COPYCHUNK_FILE:
 			rc = cifs_ioctl_clone(xid, filep, arg, 0, 0, 0);
 			break;
 		default:
-- 
cgit 


From 42458f41d08f0873299e830464c1232a6839297d Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Thu, 7 Nov 2013 13:59:46 -0500
Subject: n_tty: Ensure reader restarts worker for next reader

A departing reader must restart a flush_to_ldisc() worker _before_
the next reader enters the read loop; this is to avoid the new reader
concluding no more i/o is available and prematurely exiting, when the
old reader simply hasn't re-started the worker yet.

Cc: stable <stable@vger.kernel.org> # 3.12
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/n_tty.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 7cdd1eb9406c..a2b70c97391f 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -2243,6 +2243,9 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file,
 		if (time)
 			timeout = time;
 	}
+	n_tty_set_room(tty);
+	up_read(&tty->termios_rwsem);
+
 	mutex_unlock(&ldata->atomic_read_lock);
 	remove_wait_queue(&tty->read_wait, &wait);
 
@@ -2253,8 +2256,6 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file,
 	if (b - buf)
 		retval = b - buf;
 
-	n_tty_set_room(tty);
-	up_read(&tty->termios_rwsem);
 	return retval;
 }
 
-- 
cgit 


From 6f2225363c205e186c1465c2c7c84f17c1635504 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Fri, 8 Nov 2013 09:42:18 -0500
Subject: n_tty: Fix echo overrun tail computation

Commit cbfd0340ae1993378fd47179db949e050e16e697,
'n_tty: Process echoes in blocks', introduced an error when
consuming the echo buffer tail to prevent buffer overrun, where
the incorrect operation code byte is checked to determine how
far to advance the tail to the next echo byte.

Check the correct byte for the echo operation code byte.

Cc: <stable@vger.kernel.org> # 3.12.x : c476f65 tty: incorrect test of echo_buf() result for ECHO_OP_START
Cc: <stable@vger.kernel.org> # 3.12.x
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/n_tty.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index a2b70c97391f..d8a779d3a611 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -768,7 +768,7 @@ static size_t __process_echoes(struct tty_struct *tty)
 	 * data at the tail to prevent a subsequent overrun */
 	while (ldata->echo_commit - tail >= ECHO_DISCARD_WATERMARK) {
 		if (echo_buf(ldata, tail) == ECHO_OP_START) {
-			if (echo_buf(ldata, tail) == ECHO_OP_ERASE_TAB)
+			if (echo_buf(ldata, tail + 1) == ECHO_OP_ERASE_TAB)
 				tail += 3;
 			else
 				tail += 2;
-- 
cgit 


From c77569d2f3ef7844ee4ac7005a57da6898b302a8 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Fri, 22 Nov 2013 07:16:25 -0500
Subject: n_tty: Fix 4096-byte canonical reads

Although the maximum allowable canonical line is specified to
be 255 bytes (MAX_CANON), the practical limit has actually been
the size of the line discipline read buffer (N_TTY_BUF_SIZE == 4096).

Commit 32f13521ca68bc624ff6effc77f308a52b038bf0,
n_tty: Line copy to user buffer in canonical mode, limited the
line copy to 4095 bytes. With a completely full line discipline
read buffer and a userspace buffer > 4095, _no_ data was copied,
and the read() syscall returned 0, indicating EOF.

Fix the interval arithmetic to compute the correct number of bytes
to copy to userspace in the range [1..4096].

Cc: <stable@vger.kernel.org> # 3.12.x
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/n_tty.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index d8a779d3a611..c222a561c5ac 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1998,7 +1998,10 @@ static int canon_copy_from_read_buf(struct tty_struct *tty,
 		found = 1;
 
 	size = N_TTY_BUF_SIZE - tail;
-	n = (found + eol + size) & (N_TTY_BUF_SIZE - 1);
+	n = eol - tail;
+	if (n > 4096)
+		n += 4096;
+	n += found;
 	c = n;
 
 	if (found && read_buf(ldata, eol) == __DISABLED_CHAR) {
-- 
cgit 


From 6468178767c4c7e600fdbf50aaca03f4a8a82ca4 Mon Sep 17 00:00:00 2001
From: Marc Zyngier <Marc.Zyngier@arm.com>
Date: Tue, 12 Nov 2013 17:11:53 +0000
Subject: arm64: let the core code deal with preempt_count

Commit f27dde8deef3 (sched: Add NEED_RESCHED to the preempt_count)
introduced the use of bit 31 in preempt_count for obscure scheduling
purposes.

This causes interrupts taken from EL0 to hit the (open coded) BUG when
this flag is flipped while handling the interrupt (we compare the
values before and after, and kill the kernel if they are different).

The fix is to stop messing with the preempt count entirely, as this
is already being dealt with in the generic code (irq_enter/irq_exit).

Tested on a dual A53 FPGA running cyclictest.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kernel/entry.S | 29 +++++++----------------------
 1 file changed, 7 insertions(+), 22 deletions(-)

diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S
index e1166145ca29..4d2c6f3f0c41 100644
--- a/arch/arm64/kernel/entry.S
+++ b/arch/arm64/kernel/entry.S
@@ -309,15 +309,12 @@ el1_irq:
 #ifdef CONFIG_TRACE_IRQFLAGS
 	bl	trace_hardirqs_off
 #endif
-#ifdef CONFIG_PREEMPT
-	get_thread_info tsk
-	ldr	w24, [tsk, #TI_PREEMPT]		// get preempt count
-	add	w0, w24, #1			// increment it
-	str	w0, [tsk, #TI_PREEMPT]
-#endif
+
 	irq_handler
+
 #ifdef CONFIG_PREEMPT
-	str	w24, [tsk, #TI_PREEMPT]		// restore preempt count
+	get_thread_info tsk
+	ldr	w24, [tsk, #TI_PREEMPT]		// restore preempt count
 	cbnz	w24, 1f				// preempt count != 0
 	ldr	x0, [tsk, #TI_FLAGS]		// get flags
 	tbz	x0, #TIF_NEED_RESCHED, 1f	// needs rescheduling?
@@ -507,22 +504,10 @@ el0_irq_naked:
 #ifdef CONFIG_TRACE_IRQFLAGS
 	bl	trace_hardirqs_off
 #endif
-	get_thread_info tsk
-#ifdef CONFIG_PREEMPT
-	ldr	w24, [tsk, #TI_PREEMPT]		// get preempt count
-	add	w23, w24, #1			// increment it
-	str	w23, [tsk, #TI_PREEMPT]
-#endif
+
 	irq_handler
-#ifdef CONFIG_PREEMPT
-	ldr	w0, [tsk, #TI_PREEMPT]
-	str	w24, [tsk, #TI_PREEMPT]
-	cmp	w0, w23
-	b.eq	1f
-	mov	x1, #0
-	str	x1, [x1]			// BUG
-1:
-#endif
+	get_thread_info tsk
+
 #ifdef CONFIG_TRACE_IRQFLAGS
 	bl	trace_hardirqs_on
 #endif
-- 
cgit 


From df503ba7f653c590b475ab80bde788edf5af70d5 Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Thu, 14 Nov 2013 15:15:37 +0000
Subject: arm64: dts: Reserve the memory used for secondary CPU release address

With the spin-table SMP booting method, secondary CPUs poll a location
passed in the DT. The foundation-v8.dts file doesn't have this memory
reserved and there is a risk of Linux using it before secondary CPUs are
started.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/boot/dts/foundation-v8.dts | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/foundation-v8.dts b/arch/arm64/boot/dts/foundation-v8.dts
index 84fcc5018284..519c4b2c0687 100644
--- a/arch/arm64/boot/dts/foundation-v8.dts
+++ b/arch/arm64/boot/dts/foundation-v8.dts
@@ -6,6 +6,8 @@
 
 /dts-v1/;
 
+/memreserve/ 0x80000000 0x00010000;
+
 / {
 	model = "Foundation-v8A";
 	compatible = "arm,foundation-aarch64", "arm,vexpress";
-- 
cgit 


From b3bf6aa7e79117419f7eddccf0b7af4382d823c3 Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Thu, 21 Nov 2013 14:46:17 +0000
Subject: arm64: Unmask asynchronous aborts when in kernel mode

The asynchronous aborts are generally fatal for the kernel but they can
be masked via the pstate A bit. If a system error happens while in
kernel mode, it won't be visible until returning to user space. This
patch enables this kind of abort early to help identifying the cause.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/include/asm/irqflags.h | 3 +++
 arch/arm64/kernel/setup.c         | 5 +++++
 arch/arm64/kernel/smp.c           | 1 +
 3 files changed, 9 insertions(+)

diff --git a/arch/arm64/include/asm/irqflags.h b/arch/arm64/include/asm/irqflags.h
index aa11943b8502..b2fcfbc51ecc 100644
--- a/arch/arm64/include/asm/irqflags.h
+++ b/arch/arm64/include/asm/irqflags.h
@@ -56,6 +56,9 @@ static inline void arch_local_irq_disable(void)
 #define local_fiq_enable()	asm("msr	daifclr, #1" : : : "memory")
 #define local_fiq_disable()	asm("msr	daifset, #1" : : : "memory")
 
+#define local_async_enable()	asm("msr	daifclr, #4" : : : "memory")
+#define local_async_disable()	asm("msr	daifset, #4" : : : "memory")
+
 /*
  * Save the current interrupt enable state.
  */
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index 0bc5e4cbc017..bd9bbd0e44ed 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -205,6 +205,11 @@ u64 __cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID };
 
 void __init setup_arch(char **cmdline_p)
 {
+	/*
+	 * Unmask asynchronous aborts early to catch possible system errors.
+	 */
+	local_async_enable();
+
 	setup_processor();
 
 	setup_machine_fdt(__fdt_pointer);
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index a5aeefab03c3..a0c2ca602cf8 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -160,6 +160,7 @@ asmlinkage void secondary_start_kernel(void)
 
 	local_irq_enable();
 	local_fiq_enable();
+	local_async_enable();
 
 	/*
 	 * OK, it's off to the idle thread for us
-- 
cgit 


From f3014127ada32f51ce0baf0bee4c6324a601ef59 Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Thu, 7 Nov 2013 09:58:14 -0800
Subject: tty/serial/8250: fix typo in help text

Commit 9326b047e4fd4a8da72e59d913214a1803e9709c includes a typo
of "8350_core" instead of "8250_core", so correct it.

Fixes kernel bugzilla #60724:
  https://bugzilla.kernel.org/show_bug.cgi?id=60724

Reported-by: Christoph Biedl <bugzilla.kernel.bpeb@manchmal.in-ulm.de>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig
index f3b306efaa59..23329918f229 100644
--- a/drivers/tty/serial/8250/Kconfig
+++ b/drivers/tty/serial/8250/Kconfig
@@ -41,7 +41,7 @@ config SERIAL_8250_DEPRECATED_OPTIONS
 	  accept kernel parameters in both forms like 8250_core.nr_uarts=4 and
 	  8250.nr_uarts=4. We now renamed the module back to 8250, but if
 	  anybody noticed in 3.7 and changed their userspace we still have to
-	  keep the 8350_core.* options around until they revert the changes
+	  keep the 8250_core.* options around until they revert the changes
 	  they already did.
 
 	  If 8250 is built as a module, this adds 8250_core alias instead. 
-- 
cgit 


From c284ee2cf12b55fa8496b2d098bf0938688f1c1c Mon Sep 17 00:00:00 2001
From: Chao Bi <chao.bi@intel.com>
Date: Thu, 17 Oct 2013 15:08:27 +0800
Subject: n_gsm: race between ld close and gsmtty open

ttyA has ld associated to n_gsm, when ttyA is closing, it triggers
to release gsmttyB's ld data dlci[B], then race would happen if gsmttyB
is opening in parallel.

Here are race cases we found recently in test:

CASE #1
====================================================================
releasing dlci[B] race with gsmtty_install(gsmttyB), then panic
in gsmtty_open(gsmttyB), as below:

 tty_release(ttyA)                  tty_open(gsmttyB)
     |                                   |
   -----                           gsmtty_install(gsmttyB)
     |                                   |
   -----                    gsm_dlci_alloc(gsmttyB) => alloc dlci[B]
 tty_ldisc_release(ttyA)               -----
     |                                   |
 gsm_dlci_release(dlci[B])             -----
     |                                   |
 gsm_dlci_free(dlci[B])                -----
     |                                   |
   -----                           gsmtty_open(gsmttyB)

 gsmtty_open()
 {
     struct gsm_dlci *dlci = tty->driver_data; => here it uses dlci[B]
     ...
 }

 In gsmtty_open(gsmttyA), it uses dlci[B] which was release, so hit a panic.
=====================================================================

CASE #2
=====================================================================
releasing dlci[0] race with gsmtty_install(gsmttyB), then panic
in gsmtty_open(), as below:

 tty_release(ttyA)                  tty_open(gsmttyB)
     |                                   |
   -----                           gsmtty_install(gsmttyB)
     |                                   |
   -----                    gsm_dlci_alloc(gsmttyB) => alloc dlci[B]
     |                                   |
   -----                         gsmtty_open(gsmttyB) fail
     |                                   |
   -----                           tty_release(gsmttyB)
     |                                   |
   -----                           gsmtty_close(gsmttyB)
     |                                   |
   -----                        gsmtty_detach_dlci(dlci[B])
     |                                   |
   -----                             dlci_put(dlci[B])
     |                                   |
 tty_ldisc_release(ttyA)               -----
     |                                   |
 gsm_dlci_release(dlci[0])             -----
     |                                   |
 gsm_dlci_free(dlci[0])                -----
     |                                   |
   -----                             dlci_put(dlci[0])

 In gsmtty_detach_dlci(dlci[B]), it tries to use dlci[0] which was released,
 then hit panic.
=====================================================================

IMHO, n_gsm tty operations would refer released ldisc,  as long as
gsm_dlci_release() has chance to release ldisc data when some gsmtty operations
are not completed..

This patch is try to avoid it by:

1) in n_gsm driver, use a global gsm spin lock to avoid gsm_dlci_release() run in
parallel with gsmtty_install();

2) Increase dlci's ref count in gsmtty_install() instead of in gsmtty_open(), the
purpose is to prevent gsm_dlci_release() releasing dlci after gsmtty_install()
allocats dlci but before gsmtty_open increases dlci's ref count;

3) Decrease dlci's ref count in gsmtty_remove(), which is a tty framework api, and
this is the opposite process of step 2).

Signed-off-by: Chao Bi <chao.bi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/n_gsm.c | 37 +++++++++++++++++++++++++++----------
 1 file changed, 27 insertions(+), 10 deletions(-)

diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index c0f76da55304..069bfd654485 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -2054,9 +2054,11 @@ void gsm_cleanup_mux(struct gsm_mux *gsm)
 					dlci->state == DLCI_CLOSED);
 	}
 	/* Free up any link layer users */
+	spin_lock(&gsm->lock);
 	for (i = 0; i < NUM_DLCI; i++)
 		if (gsm->dlci[i])
 			gsm_dlci_release(gsm->dlci[i]);
+	spin_unlock(&gsm->lock);
 	/* Now wipe the queues */
 	list_for_each_entry_safe(txq, ntxq, &gsm->tx_list, list)
 		kfree(txq);
@@ -2909,23 +2911,33 @@ static int gsmtty_install(struct tty_driver *driver, struct tty_struct *tty)
 	This is ok from a locking
 	perspective as we don't have to worry about this
 	if DLCI0 is lost */
-	if (gsm->dlci[0] && gsm->dlci[0]->state != DLCI_OPEN)
+	spin_lock(&gsm->lock);
+	if (gsm->dlci[0] && gsm->dlci[0]->state != DLCI_OPEN) {
+		spin_unlock(&gsm->lock);
 		return -EL2NSYNC;
+	}
 	dlci = gsm->dlci[line];
 	if (dlci == NULL) {
 		alloc = true;
 		dlci = gsm_dlci_alloc(gsm, line);
 	}
-	if (dlci == NULL)
+	if (dlci == NULL) {
+		spin_unlock(&gsm->lock);
 		return -ENOMEM;
+	}
 	ret = tty_port_install(&dlci->port, driver, tty);
 	if (ret) {
 		if (alloc)
 			dlci_put(dlci);
+		spin_unlock(&gsm->lock);
 		return ret;
 	}
 
+	dlci_get(dlci);
+	dlci_get(gsm->dlci[0]);
+	mux_get(gsm);
 	tty->driver_data = dlci;
+	spin_unlock(&gsm->lock);
 
 	return 0;
 }
@@ -2936,9 +2948,6 @@ static int gsmtty_open(struct tty_struct *tty, struct file *filp)
 	struct tty_port *port = &dlci->port;
 
 	port->count++;
-	dlci_get(dlci);
-	dlci_get(dlci->gsm->dlci[0]);
-	mux_get(dlci->gsm);
 	tty_port_tty_set(port, tty);
 
 	dlci->modem_rx = 0;
@@ -2965,7 +2974,7 @@ static void gsmtty_close(struct tty_struct *tty, struct file *filp)
 	mutex_unlock(&dlci->mutex);
 	gsm = dlci->gsm;
 	if (tty_port_close_start(&dlci->port, tty, filp) == 0)
-		goto out;
+		return;
 	gsm_dlci_begin_close(dlci);
 	if (test_bit(ASYNCB_INITIALIZED, &dlci->port.flags)) {
 		if (C_HUPCL(tty))
@@ -2973,10 +2982,7 @@ static void gsmtty_close(struct tty_struct *tty, struct file *filp)
 	}
 	tty_port_close_end(&dlci->port, tty);
 	tty_port_tty_set(&dlci->port, NULL);
-out:
-	dlci_put(dlci);
-	dlci_put(gsm->dlci[0]);
-	mux_put(gsm);
+	return;
 }
 
 static void gsmtty_hangup(struct tty_struct *tty)
@@ -3153,6 +3159,16 @@ static int gsmtty_break_ctl(struct tty_struct *tty, int state)
 	return gsmtty_modem_update(dlci, encode);
 }
 
+static void gsmtty_remove(struct tty_driver *driver, struct tty_struct *tty)
+{
+	struct gsm_dlci *dlci = tty->driver_data;
+	struct gsm_mux *gsm = dlci->gsm;
+
+	dlci_put(dlci);
+	dlci_put(gsm->dlci[0]);
+	mux_put(gsm);
+	driver->ttys[tty->index] = NULL;
+}
 
 /* Virtual ttys for the demux */
 static const struct tty_operations gsmtty_ops = {
@@ -3172,6 +3188,7 @@ static const struct tty_operations gsmtty_ops = {
 	.tiocmget		= gsmtty_tiocmget,
 	.tiocmset		= gsmtty_tiocmset,
 	.break_ctl		= gsmtty_break_ctl,
+	.remove			= gsmtty_remove,
 };
 
 
-- 
cgit 


From dc1dc2f8a5dd863bf2e79f338fc3ae29e99c683a Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Fri, 22 Nov 2013 16:47:26 +0100
Subject: TTY: pmac_zilog, check existence of ports in pmz_console_init()

When booting a multi-platform m68k kernel on a non-Mac with "console=ttyS0"
on the kernel command line, it crashes with:

Unable to handle kernel NULL pointer dereference at virtual address   (null)
Oops: 00000000
PC: [<0013ad28>] __pmz_startup+0x32/0x2a0
...
Call Trace: [<002c5d3e>] pmz_console_setup+0x64/0xe4

The normal tty driver doesn't crash, because init_pmz() checks
pmz_ports_count again after calling pmz_probe().

In the serial console initialization path, pmz_console_init() doesn't do
this, causing the driver to crash later.

Add a check for pmz_ports_count to fix this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Finn Thain <fthain@telegraphics.com.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/pmac_zilog.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/tty/serial/pmac_zilog.c b/drivers/tty/serial/pmac_zilog.c
index 481b781b26e3..e9d420ff3931 100644
--- a/drivers/tty/serial/pmac_zilog.c
+++ b/drivers/tty/serial/pmac_zilog.c
@@ -2052,6 +2052,9 @@ static int __init pmz_console_init(void)
 	/* Probe ports */
 	pmz_probe();
 
+	if (pmz_ports_count == 0)
+		return -ENODEV;
+
 	/* TODO: Autoprobe console based on OF */
 	/* pmz_console.index = i; */
 	register_console(&pmz_console);
-- 
cgit 


From 3dcf344bef2e9b9910817b210783d79c383bc849 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Fri, 22 Nov 2013 16:47:27 +0100
Subject: TTY: amiserial, add missing platform check

When booting a multi-platform m68k kernel on a non-Amiga with
"console=ttyS0" on the kernel command line, it crashes with:

Unable to handle kernel access at virtual address 81dff01c
Oops: 00000000
PC: [<001e09a8>] serial_console_write+0xc/0x70

Add the missing platform check to amiserial_console_init() to fix this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/amiserial.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/tty/amiserial.c b/drivers/tty/amiserial.c
index 2b86f8e0fb58..71630a2af42c 100644
--- a/drivers/tty/amiserial.c
+++ b/drivers/tty/amiserial.c
@@ -1855,6 +1855,9 @@ static struct console sercons = {
  */
 static int __init amiserial_console_init(void)
 {
+	if (!MACH_IS_AMIGA)
+		return -ENODEV;
+
 	register_console(&sercons);
 	return 0;
 }
-- 
cgit 


From d4855e1fc03c2bb32dd64badf51cec5a2a26ab2a Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Tue, 19 Nov 2013 08:46:27 -0500
Subject: tty: Reset hupped state on open

A common security idiom is to hangup the current tty (via vhangup())
after forking but before execing a root shell. This hangs up any
existing opens which other processes may have and ensures subsequent
opens have the necessary permissions to open the root shell tty/pty.

Reset the TTY_HUPPED state after the driver has successfully
returned the opened tty (perform the reset while the tty is locked
to avoid racing with concurrent hangups).

Reported-by: Heorhi Valakhanovich <valahanovich@tut.by>
Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Cc: stable <stable@vger.kernel.org> # 3.12
Tested-by: Heorhi Valakhanovich <valahanovich@tut.by>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/tty_io.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 3a1a01af9a80..c74a00ad7add 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -2086,6 +2086,7 @@ retry_open:
 			filp->f_op = &tty_fops;
 		goto retry_open;
 	}
+	clear_bit(TTY_HUPPED, &tty->flags);
 	tty_unlock(tty);
 
 
-- 
cgit 


From c16975a06cfbbdedfde89e81bd00c7e0ad9de377 Mon Sep 17 00:00:00 2001
From: Michal Nazarewicz <mina86@mina86.com>
Date: Mon, 11 Nov 2013 12:31:51 +0100
Subject: staging: comedi: fix potentially uninitialised variable

If none of the if conditions take a true path, the ret variable will
never be assigned a value.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/vmk80xx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/vmk80xx.c b/drivers/staging/comedi/drivers/vmk80xx.c
index 933b01a0f03d..0adf3cffddb0 100644
--- a/drivers/staging/comedi/drivers/vmk80xx.c
+++ b/drivers/staging/comedi/drivers/vmk80xx.c
@@ -465,7 +465,7 @@ static int vmk80xx_do_insn_bits(struct comedi_device *dev,
 	unsigned char *rx_buf = devpriv->usb_rx_buf;
 	unsigned char *tx_buf = devpriv->usb_tx_buf;
 	int reg, cmd;
-	int ret;
+	int ret = 0;
 
 	if (devpriv->model == VMK8061_MODEL) {
 		reg = VMK8061_DO_REG;
-- 
cgit 


From 9382c06e2d192adec090fb09ff0b699e951f88e1 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 7 Nov 2013 11:13:00 +0300
Subject: Staging: comedi: pcl730: fix some bitwise vs logical AND bugs

These conditions are never true because they use bitwise AND instead of
logical ands.

Fixes: b3ff824a81e8 ('staging: comedi: drivers: use comedi_dio_update_state() for complex cases')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/pcl730.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/comedi/drivers/pcl730.c b/drivers/staging/comedi/drivers/pcl730.c
index d041b714db29..2baaf1db6fbf 100644
--- a/drivers/staging/comedi/drivers/pcl730.c
+++ b/drivers/staging/comedi/drivers/pcl730.c
@@ -173,11 +173,11 @@ static int pcl730_do_insn_bits(struct comedi_device *dev,
 	if (mask) {
 		if (mask & 0x00ff)
 			outb(s->state & 0xff, dev->iobase + reg);
-		if ((mask & 0xff00) & (s->n_chan > 8))
+		if ((mask & 0xff00) && (s->n_chan > 8))
 			outb((s->state >> 8) & 0xff, dev->iobase + reg + 1);
-		if ((mask & 0xff0000) & (s->n_chan > 16))
+		if ((mask & 0xff0000) && (s->n_chan > 16))
 			outb((s->state >> 16) & 0xff, dev->iobase + reg + 2);
-		if ((mask & 0xff000000) & (s->n_chan > 24))
+		if ((mask & 0xff000000) && (s->n_chan > 24))
 			outb((s->state >> 24) & 0xff, dev->iobase + reg + 3);
 	}
 
-- 
cgit 


From 3de00ee4ce6a61ce7b72fd50a8af47957a7b53a8 Mon Sep 17 00:00:00 2001
From: Ian Abbott <abbotti@mev.co.uk>
Date: Wed, 6 Nov 2013 20:45:59 +0000
Subject: staging: comedi: s626: fix value written by s626_set_dac()

I broke `s626_set_dac()` by changing the type of the `dacdata` parameter
from `short` to `unsigned short`.  It's actually designed to take a
signed value in the range -0x1fff to +0x2000 although values above
0x1fff get clamped to 0x1fff.  (We could change the `maxdata` value to
0x1ffe to avoid the clamping, but `maxdata` values are usually a power
of 2 minus 1.)  The bug results in all negative values passed to the
function being changed to +0x1fff by the clamp.  Change the parameter
type to `int16_t` to fix the problem.

Signed-off-by: Ian Abbott <abbotti@mev.co.uk>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/comedi/drivers/s626.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c
index 6815cfe2664e..b486099b543d 100644
--- a/drivers/staging/comedi/drivers/s626.c
+++ b/drivers/staging/comedi/drivers/s626.c
@@ -494,7 +494,7 @@ static void s626_send_dac(struct comedi_device *dev, uint32_t val)
  * Private helper function: Write setpoint to an application DAC channel.
  */
 static void s626_set_dac(struct comedi_device *dev, uint16_t chan,
-			 unsigned short dacdata)
+			 int16_t dacdata)
 {
 	struct s626_private *devpriv = dev->private;
 	uint16_t signmask;
-- 
cgit 


From cb4855b49deb1acce27706ad9509d63c4fe8e988 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 7 Nov 2013 10:55:43 +0300
Subject: Staging: vt6655-6: potential NULL dereference in
 hostap_disable_hostapd()

We fixed this to use free_netdev() instead of kfree() but unfortunately
free_netdev() doesn't accept NULL pointers.  Smatch complains about
this, it's not something I discovered through testing.

Fixes: 3030d40b5036 ('staging: vt6655: use free_netdev instead of kfree')
Fixes: 0a438d5b381e ('staging: vt6656: use free_netdev instead of kfree')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6655/hostap.c | 3 ++-
 drivers/staging/vt6656/hostap.c | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/vt6655/hostap.c b/drivers/staging/vt6655/hostap.c
index aab0012bba92..ab8b2ba6eedd 100644
--- a/drivers/staging/vt6655/hostap.c
+++ b/drivers/staging/vt6655/hostap.c
@@ -143,7 +143,8 @@ static int hostap_disable_hostapd(PSDevice pDevice, int rtnl_locked)
 		DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Netdevice %s unregistered\n",
 			pDevice->dev->name, pDevice->apdev->name);
 	}
-	free_netdev(pDevice->apdev);
+	if (pDevice->apdev)
+		free_netdev(pDevice->apdev);
 	pDevice->apdev = NULL;
 	pDevice->bEnable8021x = false;
 	pDevice->bEnableHostWEP = false;
diff --git a/drivers/staging/vt6656/hostap.c b/drivers/staging/vt6656/hostap.c
index ae1676d190c5..67ba48b9a8d9 100644
--- a/drivers/staging/vt6656/hostap.c
+++ b/drivers/staging/vt6656/hostap.c
@@ -133,7 +133,8 @@ static int hostap_disable_hostapd(struct vnt_private *pDevice, int rtnl_locked)
             DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Netdevice %s unregistered\n",
 		       pDevice->dev->name, pDevice->apdev->name);
 	}
-	free_netdev(pDevice->apdev);
+	if (pDevice->apdev)
+		free_netdev(pDevice->apdev);
 	pDevice->apdev = NULL;
     pDevice->bEnable8021x = false;
     pDevice->bEnableHostWEP = false;
-- 
cgit 


From 6330f9cf347849de74899e5fac00bfecd84a6b43 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 7 Nov 2013 14:25:32 +0300
Subject: staging: nvec: potential NULL dereference on error path

We assume nvec->rx can be NULL earlier so I have added a check here as
well.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/nvec/nvec.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c
index 3066ee2e753b..49ea76b3435d 100644
--- a/drivers/staging/nvec/nvec.c
+++ b/drivers/staging/nvec/nvec.c
@@ -681,7 +681,8 @@ static irqreturn_t nvec_interrupt(int irq, void *dev)
 			dev_err(nvec->dev,
 				"RX buffer overflow on %p: "
 				"Trying to write byte %u of %u\n",
-				nvec->rx, nvec->rx->pos, NVEC_MSG_SIZE);
+				nvec->rx, nvec->rx ? nvec->rx->pos : 0,
+				NVEC_MSG_SIZE);
 		break;
 	default:
 		nvec->state = 0;
-- 
cgit 


From 9df682927c2e3a92f43803d6b52095992e3b2ab8 Mon Sep 17 00:00:00 2001
From: Malcolm Priestley <tvboxspy@gmail.com>
Date: Thu, 7 Nov 2013 21:49:04 +0000
Subject: staging: vt6656: [BUG] Fix for TX USB resets from vendors driver.

This fixes resets on heavy TX data traffic.

Vendor driver
VT6656_Linux_src_v1.21.03_x86_11.04.zip
http://www.viaembedded.com/servlet/downloadSvl?id=1890&download_file_id=14704
This is GPL-licensed code.

original code
BBbVT3184Init
...
//2007-0725, RobertChang add, Enable Squelch detect reset option(SQ_RST_Opt), USB (register4, bit1)
CONTROLnsRequestIn(pDevice,
                                 MESSAGE_TYPE_READ,
                                 (WORD)0x600+4,     // USB's Reg4's bit1
                                 MESSAGE_REQUEST_MEM,
                                 1,
                                 (PBYTE) &byData);
byData = byData|2 ;
CONTROLnsRequestOut(pDevice,
                              MESSAGE_TYPE_WRITE,
                              (WORD)0x600+4,     // USB's Reg4's bit1
                              MESSAGE_REQUEST_MEM,
                              1,
                              (PBYTE) &byData);

return TRUE;//ntStatus;
....

A back port patch is needed for kernels less than 3.10.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Cc: stable@vger.kernel.org # v3.10+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/vt6656/baseband.c | 11 +++++++++++
 drivers/staging/vt6656/rndis.h    |  2 ++
 2 files changed, 13 insertions(+)

diff --git a/drivers/staging/vt6656/baseband.c b/drivers/staging/vt6656/baseband.c
index 1e8b8412e67e..4aa5ef54b683 100644
--- a/drivers/staging/vt6656/baseband.c
+++ b/drivers/staging/vt6656/baseband.c
@@ -939,6 +939,7 @@ int BBbVT3184Init(struct vnt_private *pDevice)
     u8 *                   pbyAgc;
     u16                    wLengthAgc;
     u8                    abyArray[256];
+	u8 data;
 
     ntStatus = CONTROLnsRequestIn(pDevice,
                                   MESSAGE_TYPE_READ,
@@ -1104,6 +1105,16 @@ else {
     ControlvWriteByte(pDevice,MESSAGE_REQUEST_BBREG,0x0D,0x01);
 
     RFbRFTableDownload(pDevice);
+
+	/* Fix for TX USB resets from vendors driver */
+	CONTROLnsRequestIn(pDevice, MESSAGE_TYPE_READ, USB_REG4,
+		MESSAGE_REQUEST_MEM, sizeof(data), &data);
+
+	data |= 0x2;
+
+	CONTROLnsRequestOut(pDevice, MESSAGE_TYPE_WRITE, USB_REG4,
+		MESSAGE_REQUEST_MEM, sizeof(data), &data);
+
     return true;//ntStatus;
 }
 
diff --git a/drivers/staging/vt6656/rndis.h b/drivers/staging/vt6656/rndis.h
index 5e073062017a..5cf5e732a36f 100644
--- a/drivers/staging/vt6656/rndis.h
+++ b/drivers/staging/vt6656/rndis.h
@@ -66,6 +66,8 @@
 
 #define VIAUSB20_PACKET_HEADER          0x04
 
+#define USB_REG4	0x604
+
 typedef struct _CMD_MESSAGE
 {
     u8        byData[256];
-- 
cgit 


From 1b672224d128ec2570eb37572ff803cfe452b4f7 Mon Sep 17 00:00:00 2001
From: Rashika Kheria <rashika.kheria@gmail.com>
Date: Sun, 10 Nov 2013 22:13:53 +0530
Subject: Staging: zram: Fix memory leak by refcount mismatch

As suggested by Minchan Kim and Jerome Marchand "The code in reset_store
get the block device (bdget_disk()) but it does not put it (bdput()) when
it's done using it. The usage count is therefore incremented but never
decremented."

This patch also puts bdput() for all error cases.

Acked-by: Minchan Kim <minchan@kernel.org>
Acked-by: Jerome Marchand <jmarchan@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/zram/zram_drv.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c
index 79ce363b2ea9..3277d9838f4e 100644
--- a/drivers/staging/zram/zram_drv.c
+++ b/drivers/staging/zram/zram_drv.c
@@ -652,21 +652,30 @@ static ssize_t reset_store(struct device *dev,
 		return -ENOMEM;
 
 	/* Do not reset an active device! */
-	if (bdev->bd_holders)
-		return -EBUSY;
+	if (bdev->bd_holders) {
+		ret = -EBUSY;
+		goto out;
+	}
 
 	ret = kstrtou16(buf, 10, &do_reset);
 	if (ret)
-		return ret;
+		goto out;
 
-	if (!do_reset)
-		return -EINVAL;
+	if (!do_reset) {
+		ret = -EINVAL;
+		goto out;
+	}
 
 	/* Make sure all pending I/O is finished */
 	fsync_bdev(bdev);
+	bdput(bdev);
 
 	zram_reset_device(zram, true);
 	return len;
+
+out:
+	bdput(bdev);
+	return ret;
 }
 
 static void __zram_make_request(struct zram *zram, struct bio *bio, int rw)
-- 
cgit 


From aebf045382edb32bd763d8edea02a559e7dc41e9 Mon Sep 17 00:00:00 2001
From: Peter Hurley <peter@hurleysoftware.com>
Date: Thu, 7 Nov 2013 14:01:57 -0500
Subject: n_tty: Protect minimum_to_wake reset for concurrent readers

With multiple, concurrent readers (each waiting to acquire the
atomic_read_lock mutex), a departing reader may mistakenly reset
minimum_to_wake after a new reader has already set a new value.

Protect the minimum_to_wake reset with the atomic_read_lock critical
section.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/n_tty.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index c222a561c5ac..0f74945af624 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -2249,12 +2249,12 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file,
 	n_tty_set_room(tty);
 	up_read(&tty->termios_rwsem);
 
-	mutex_unlock(&ldata->atomic_read_lock);
 	remove_wait_queue(&tty->read_wait, &wait);
-
 	if (!waitqueue_active(&tty->read_wait))
 		ldata->minimum_to_wake = minimum;
 
+	mutex_unlock(&ldata->atomic_read_lock);
+
 	__set_current_state(TASK_RUNNING);
 	if (b - buf)
 		retval = b - buf;
-- 
cgit 


From 66a528c1c3d66442e1fbb1e3c512f7557fa0d0c3 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 25 Nov 2013 09:21:55 -0800
Subject: Revert "staging:media: Use dev_dbg() instead of pr_debug()"

This reverts commit b6ea5ef80aa7fd6f4b18ff2e4174930e8772e812.

Turns out to have lots of run-time issues in that the structure is not
initialized before it is used in the debugging messages.

Reported-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/media/go7007/go7007-usb.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/drivers/staging/media/go7007/go7007-usb.c b/drivers/staging/media/go7007/go7007-usb.c
index 58684da45e6c..b09a00b24f26 100644
--- a/drivers/staging/media/go7007/go7007-usb.c
+++ b/drivers/staging/media/go7007/go7007-usb.c
@@ -15,6 +15,8 @@
  * Inc., 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -661,7 +663,7 @@ static int go7007_usb_interface_reset(struct go7007 *go)
 
 	if (usb->board->flags & GO7007_USB_EZUSB) {
 		/* Reset buffer in EZ-USB */
-		dev_dbg(go->dev, "resetting EZ-USB buffers\n");
+		pr_debug("resetting EZ-USB buffers\n");
 		if (go7007_usb_vendor_request(go, 0x10, 0, 0, NULL, 0, 0) < 0 ||
 		    go7007_usb_vendor_request(go, 0x10, 0, 0, NULL, 0, 0) < 0)
 			return -1;
@@ -689,7 +691,7 @@ static int go7007_usb_ezusb_write_interrupt(struct go7007 *go,
 	u16 status_reg = 0;
 	int timeout = 500;
 
-	dev_dbg(go->dev, "WriteInterrupt: %04x %04x\n", addr, data);
+	pr_debug("WriteInterrupt: %04x %04x\n", addr, data);
 
 	for (i = 0; i < 100; ++i) {
 		r = usb_control_msg(usb->usbdev,
@@ -734,7 +736,7 @@ static int go7007_usb_onboard_write_interrupt(struct go7007 *go,
 	int r;
 	int timeout = 500;
 
-	dev_dbg(go->dev, "WriteInterrupt: %04x %04x\n", addr, data);
+	pr_debug("WriteInterrupt: %04x %04x\n", addr, data);
 
 	go->usb_buf[0] = data & 0xff;
 	go->usb_buf[1] = data >> 8;
@@ -771,7 +773,7 @@ static void go7007_usb_readinterrupt_complete(struct urb *urb)
 		go->interrupt_available = 1;
 		go->interrupt_data = __le16_to_cpu(regs[0]);
 		go->interrupt_value = __le16_to_cpu(regs[1]);
-		dev_dbg(go->dev, "ReadInterrupt: %04x %04x\n",
+		pr_debug("ReadInterrupt: %04x %04x\n",
 				go->interrupt_value, go->interrupt_data);
 	}
 
@@ -891,7 +893,7 @@ static int go7007_usb_send_firmware(struct go7007 *go, u8 *data, int len)
 	int transferred, pipe;
 	int timeout = 500;
 
-	dev_dbg(go->dev, "DownloadBuffer sending %d bytes\n", len);
+	pr_debug("DownloadBuffer sending %d bytes\n", len);
 
 	if (usb->board->flags & GO7007_USB_EZUSB)
 		pipe = usb_sndbulkpipe(usb->usbdev, 2);
@@ -977,7 +979,7 @@ static int go7007_usb_i2c_master_xfer(struct i2c_adapter *adapter,
 				!(msgs[i].flags & I2C_M_RD) &&
 				(msgs[i + 1].flags & I2C_M_RD)) {
 #ifdef GO7007_I2C_DEBUG
-			dev_dbg(go->dev, "i2c write/read %d/%d bytes on %02x\n",
+			pr_debug("i2c write/read %d/%d bytes on %02x\n",
 				msgs[i].len, msgs[i + 1].len, msgs[i].addr);
 #endif
 			buf[0] = 0x01;
@@ -988,7 +990,7 @@ static int go7007_usb_i2c_master_xfer(struct i2c_adapter *adapter,
 			buf[buf_len++] = msgs[++i].len;
 		} else if (msgs[i].flags & I2C_M_RD) {
 #ifdef GO7007_I2C_DEBUG
-			dev_dbg(go->dev, "i2c read %d bytes on %02x\n",
+			pr_debug("i2c read %d bytes on %02x\n",
 					msgs[i].len, msgs[i].addr);
 #endif
 			buf[0] = 0x01;
@@ -998,7 +1000,7 @@ static int go7007_usb_i2c_master_xfer(struct i2c_adapter *adapter,
 			buf_len = 4;
 		} else {
 #ifdef GO7007_I2C_DEBUG
-			dev_dbg(go->dev, "i2c write %d bytes on %02x\n",
+			pr_debug("i2c write %d bytes on %02x\n",
 					msgs[i].len, msgs[i].addr);
 #endif
 			buf[0] = 0x00;
@@ -1057,7 +1059,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 	char *name;
 	int video_pipe, i, v_urb_len;
 
-	dev_dbg(go->dev, "probing new GO7007 USB board\n");
+	pr_debug("probing new GO7007 USB board\n");
 
 	switch (id->driver_info) {
 	case GO7007_BOARDID_MATRIX_II:
@@ -1247,7 +1249,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 					sizeof(go->name));
 			break;
 		default:
-			dev_dbg(go->dev, "unable to detect tuner type!\n");
+			pr_debug("unable to detect tuner type!\n");
 			break;
 		}
 		/* Configure tuner mode selection inputs connected
-- 
cgit 


From 8aced950222434b84e568663f5941ea39f112a7f Mon Sep 17 00:00:00 2001
From: Michal Nazarewicz <mina86@mina86.com>
Date: Sun, 10 Nov 2013 19:37:54 +0100
Subject: staging: ft1000: fix use of potentially uninitialized variable

If boot_case is false, status in never assigned a value.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ft1000/ft1000-usb/ft1000_download.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
index 68ded17c0f5c..12f333fa59b5 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_download.c
@@ -578,7 +578,7 @@ static int request_code_segment(struct ft1000_usb *ft1000dev, u16 **s_file,
 		 u8 **c_file, const u8 *endpoint, bool boot_case)
 {
 	long word_length;
-	int status;
+	int status = 0;
 
 	/*DEBUG("FT1000:REQUEST_CODE_SEGMENT\n");i*/
 	word_length = get_request_value(ft1000dev);
@@ -1074,4 +1074,3 @@ int scram_dnldr(struct ft1000_usb *ft1000dev, void *pFileStart,
 
 	return status;
 }
-
-- 
cgit 


From 9c74360f9adb63f8b77d2107c20c972827c2676f Mon Sep 17 00:00:00 2001
From: Josh Boyer <jwboyer@redhat.com>
Date: Tue, 12 Nov 2013 12:15:45 -0500
Subject: staging: imx-drm: Fix modular build of DRM_IMX_IPUV3

commit b8d181e408af (staging: drm/imx: add drm plane support) added a file
to the make target for DRM_IMX_IPUV3 but didn't adjust the objs required
to actually build that as a module.  Kbuild got confused and this lead to
link errors like:

ERROR: "ipu_plane_disable" [drivers/staging/imx-drm/ipuv3-crtc.ko] undefined!
ERROR: "ipu_plane_enable" [drivers/staging/imx-drm/ipuv3-crtc.ko] undefined!

Additionally, it added a call to imx_drm_crtc_id which also fails with a
link error as above.  To fix this, we adjust the make target with the proper
objs, which will change the name of the resulting .ko.  We also add an
EXPORT_SYMBOL_GPL for imx_drm_crtc_id.

Signed-off-by: Josh Boyer <jwboyer@fedoraproject.org>
Fixes: b8d181e408af '(staging: drm/imx: add drm plane support)'
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/imx-drm/Makefile       | 4 +++-
 drivers/staging/imx-drm/imx-drm-core.c | 1 +
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/imx-drm/Makefile b/drivers/staging/imx-drm/Makefile
index 2c3a9e178fb5..8742432d7b01 100644
--- a/drivers/staging/imx-drm/Makefile
+++ b/drivers/staging/imx-drm/Makefile
@@ -8,4 +8,6 @@ obj-$(CONFIG_DRM_IMX_TVE) += imx-tve.o
 obj-$(CONFIG_DRM_IMX_LDB) += imx-ldb.o
 obj-$(CONFIG_DRM_IMX_FB_HELPER) += imx-fbdev.o
 obj-$(CONFIG_DRM_IMX_IPUV3_CORE) += ipu-v3/
-obj-$(CONFIG_DRM_IMX_IPUV3)	+= ipuv3-crtc.o ipuv3-plane.o
+
+imx-ipuv3-crtc-objs  := ipuv3-crtc.o ipuv3-plane.o
+obj-$(CONFIG_DRM_IMX_IPUV3)	+= imx-ipuv3-crtc.o
diff --git a/drivers/staging/imx-drm/imx-drm-core.c b/drivers/staging/imx-drm/imx-drm-core.c
index 51aa9772f959..6bd015ac9d68 100644
--- a/drivers/staging/imx-drm/imx-drm-core.c
+++ b/drivers/staging/imx-drm/imx-drm-core.c
@@ -72,6 +72,7 @@ int imx_drm_crtc_id(struct imx_drm_crtc *crtc)
 {
 	return crtc->pipe;
 }
+EXPORT_SYMBOL_GPL(imx_drm_crtc_id);
 
 static void imx_drm_driver_lastclose(struct drm_device *drm)
 {
-- 
cgit 


From e6bbda9da9e8f325135fee0e001b1455fc036d96 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 25 Nov 2013 09:29:32 -0800
Subject: Staging: go7007: fix up some remaining go->dev issues

This fixes up the remaining "dev is used before it is set" issues in the
go7007 driver that were originally caused by commit
b6ea5ef80aa7fd6f4b18ff2e4174930e8772e812 but not fixed up by reverting
it due to other patches later on adding these "fixes".

Cc: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Dulshani Gunawardhana <dulshani.gunawardhana89@gmail.com>
Cc: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/media/go7007/go7007-usb.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/media/go7007/go7007-usb.c b/drivers/staging/media/go7007/go7007-usb.c
index b09a00b24f26..b658c2316df3 100644
--- a/drivers/staging/media/go7007/go7007-usb.c
+++ b/drivers/staging/media/go7007/go7007-usb.c
@@ -1099,13 +1099,13 @@ static int go7007_usb_probe(struct usb_interface *intf,
 		board = &board_px_tv402u;
 		break;
 	case GO7007_BOARDID_LIFEVIEW_LR192:
-		dev_err(go->dev, "The Lifeview TV Walker Ultra is not supported. Sorry!\n");
+		dev_err(&intf->dev, "The Lifeview TV Walker Ultra is not supported. Sorry!\n");
 		return -ENODEV;
 		name = "Lifeview TV Walker Ultra";
 		board = &board_lifeview_lr192;
 		break;
 	case GO7007_BOARDID_SENSORAY_2250:
-		dev_info(go->dev, "Sensoray 2250 found\n");
+		dev_info(&intf->dev, "Sensoray 2250 found\n");
 		name = "Sensoray 2250/2251";
 		board = &board_sensoray_2250;
 		break;
@@ -1114,7 +1114,7 @@ static int go7007_usb_probe(struct usb_interface *intf,
 		board = &board_ads_usbav_709;
 		break;
 	default:
-		dev_err(go->dev, "unknown board ID %d!\n",
+		dev_err(&intf->dev, "unknown board ID %d!\n",
 				(unsigned int)id->driver_info);
 		return -ENODEV;
 	}
-- 
cgit 


From b6dda00cddcc71d2030668bc0cc0fed758c411c2 Mon Sep 17 00:00:00 2001
From: Gregory CLEMENT <gregory.clement@free-electrons.com>
Date: Mon, 25 Nov 2013 17:26:46 +0100
Subject: ARM: mvebu: use the virtual CPU registers to access coherency
 registers

The Armada XP provides a mechanism called "virtual CPU registers" or
"per-CPU register banking", to access the per-CPU registers of the
current CPU, without having to worry about finding on which CPU we're
running. CPU0 has its registers at 0x21800, CPU1 at 0x21900, CPU2 at
0x21A00 and CPU3 at 0x21B00. The virtual registers accessing the
current CPU registers are at 0x21000.

However, in the Device Tree node that provides the register addresses
for the coherency unit (which is responsible for ensuring coherency
between processors, and I/O coherency between processors and the
DMA-capable devices), a mistake was made: the CPU0-specific registers
were specified instead of the virtual CPU registers. This means that
the coherency barrier needed for I/O coherency was not behaving
properly when executed from a CPU different from CPU0. This patch
fixes that by using the virtual CPU registers.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.8+
Fixes: e60304f8cb7bb5 "arm: mvebu: Add hardware I/O Coherency support"
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/armada-370-xp.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/armada-370-xp.dtsi b/arch/arm/boot/dts/armada-370-xp.dtsi
index 00d6a798c705..7f10f627ae5b 100644
--- a/arch/arm/boot/dts/armada-370-xp.dtsi
+++ b/arch/arm/boot/dts/armada-370-xp.dtsi
@@ -118,7 +118,7 @@
 
 			coherency-fabric@20200 {
 				compatible = "marvell,coherency-fabric";
-				reg = <0x20200 0xb0>, <0x21810 0x1c>;
+				reg = <0x20200 0xb0>, <0x21010 0x1c>;
 			};
 
 			serial@12000 {
-- 
cgit 


From 96039f735e290281d0c8a08fc467de2cd610543d Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Mon, 25 Nov 2013 17:26:47 +0100
Subject: ARM: mvebu: re-enable PCIe on Armada 370 DB

Commit 14fd8ed0a7fd19913 ("ARM: mvebu: Relocate Armada 370/XP PCIe
device tree nodes") relocated the PCIe controller DT nodes one level
up in the Device Tree, to reflect a more correct representation of the
hardware introduced by the mvebu-mbus Device Tree binding.

However, while most of the boards were properly adjusted accordingly,
the Armada 370 DB board was left unchanged, and therefore, PCIe is
seen as not enabled on this board. This patch fixes that by moving the
PCIe controller node one level-up in armada-370-db.dts.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: <stable@vger.kernel.org> # v3.12+
Fixes: 14fd8ed0a7fd19913 "ARM: mvebu: Relocate Armada 370/XP PCIe device tree nodes"
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
 arch/arm/boot/dts/armada-370-db.dts | 28 ++++++++++++++--------------
 1 file changed, 14 insertions(+), 14 deletions(-)

diff --git a/arch/arm/boot/dts/armada-370-db.dts b/arch/arm/boot/dts/armada-370-db.dts
index 90ce29dbe119..08a56bcfc724 100644
--- a/arch/arm/boot/dts/armada-370-db.dts
+++ b/arch/arm/boot/dts/armada-370-db.dts
@@ -99,22 +99,22 @@
 					spi-max-frequency = <50000000>;
 				};
 			};
+		};
 
-			pcie-controller {
+		pcie-controller {
+			status = "okay";
+			/*
+			 * The two PCIe units are accessible through
+			 * both standard PCIe slots and mini-PCIe
+			 * slots on the board.
+			 */
+			pcie@1,0 {
+				/* Port 0, Lane 0 */
+				status = "okay";
+			};
+			pcie@2,0 {
+				/* Port 1, Lane 0 */
 				status = "okay";
-				/*
-				 * The two PCIe units are accessible through
-				 * both standard PCIe slots and mini-PCIe
-				 * slots on the board.
-				 */
-				pcie@1,0 {
-					/* Port 0, Lane 0 */
-					status = "okay";
-				};
-				pcie@2,0 {
-					/* Port 1, Lane 0 */
-					status = "okay";
-				};
 			};
 		};
 	};
-- 
cgit 


From dbc335d2dc3c437649eb6b39f4e9aee2a13eb0af Mon Sep 17 00:00:00 2001
From: Roberto Sassu <roberto.sassu@polito.it>
Date: Mon, 25 Nov 2013 20:18:52 +0100
Subject: ima: make a copy of template_fmt in template_desc_init_fields()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This patch makes a copy of the 'template_fmt' function argument so that
the latter will not be modified by strsep(), which does the splitting by
replacing the given separator with '\0'.

 IMA: No TPM chip found, activating TPM-bypass!
 Unable to handle kernel pointer dereference at virtual kernel address 0000000000842000
 Oops: 0004 [#1] SMP
 Modules linked in:
 CPU: 3 PID: 1 Comm: swapper/0 Not tainted 3.12.0-rc2-00098-g3ce1217d6cd5 #17
 task: 000000003ffa0000 ti: 000000003ff84000 task.ti: 000000003ff84000
 Krnl PSW : 0704e00180000000 000000000044bf88 (strsep+0x7c/0xa0)
            R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:2 PM:0 EA:3
 Krnl GPRS: 000000000000007c 000000000000007c 000000003ff87d90 0000000000821fd8
            0000000000000000 000000000000007c 0000000000aa37e0 0000000000aa9008
            0000000000000051 0000000000a114d8 0000000100000002 0000000000842bde
            0000000000842bdf 00000000006f97f0 000000000040062c 000000003ff87cf0
 Krnl Code: 000000000044bf7c: a7f4000a           brc     15,44bf90
            000000000044bf80: b90200cc           ltgr    %r12,%r12
           #000000000044bf84: a7840006           brc     8,44bf90
           >000000000044bf88: 9200c000           mvi     0(%r12),0
            000000000044bf8c: 41c0c001           la      %r12,1(%r12)
            000000000044bf90: e3c020000024       stg     %r12,0(%r2)
            000000000044bf96: b904002b           lgr     %r2,%r11
            000000000044bf9a: ebbcf0700004       lmg     %r11,%r12,112(%r15)
 Call Trace:
 ([<00000000004005fe>] ima_init_template+0xa2/0x1bc)
  [<0000000000a7c896>] ima_init+0x7a/0xa8
  [<0000000000a7c938>] init_ima+0x24/0x40
  [<00000000001000e8>] do_one_initcall+0x68/0x128
  [<0000000000a4eb56>] kernel_init_freeable+0x20a/0x2b4
  [<00000000006a1ff4>] kernel_init+0x30/0x178
  [<00000000006b69fe>] kernel_thread_starter+0x6/0xc
  [<00000000006b69f8>] kernel_thread_starter+0x0/0xc
 Last Breaking-Event-Address:
  [<000000000044bf42>] strsep+0x36/0xa0

Fixes commit: adf53a7 ima: new templates management mechanism

Changelog v1:
- make template_fmt 'const char *' (reported-by James Morris)
- fix kstrdup memory leak (reported-by James Morris)

Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Tested-by: Heiko Carstens <heiko.carstens@de.ibm.com>
---
 security/integrity/ima/ima_template.c | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

diff --git a/security/integrity/ima/ima_template.c b/security/integrity/ima/ima_template.c
index 4e5da990630b..913e1927f916 100644
--- a/security/integrity/ima/ima_template.c
+++ b/security/integrity/ima/ima_template.c
@@ -90,7 +90,7 @@ static struct ima_template_field *lookup_template_field(const char *field_id)
 	return NULL;
 }
 
-static int template_fmt_size(char *template_fmt)
+static int template_fmt_size(const char *template_fmt)
 {
 	char c;
 	int template_fmt_len = strlen(template_fmt);
@@ -106,23 +106,28 @@ static int template_fmt_size(char *template_fmt)
 	return j + 1;
 }
 
-static int template_desc_init_fields(char *template_fmt,
+static int template_desc_init_fields(const char *template_fmt,
 				     struct ima_template_field ***fields,
 				     int *num_fields)
 {
-	char *c, *template_fmt_ptr = template_fmt;
+	char *c, *template_fmt_copy;
 	int template_num_fields = template_fmt_size(template_fmt);
 	int i, result = 0;
 
 	if (template_num_fields > IMA_TEMPLATE_NUM_FIELDS_MAX)
 		return -EINVAL;
 
+	/* copying is needed as strsep() modifies the original buffer */
+	template_fmt_copy = kstrdup(template_fmt, GFP_KERNEL);
+	if (template_fmt_copy == NULL)
+		return -ENOMEM;
+
 	*fields = kzalloc(template_num_fields * sizeof(*fields), GFP_KERNEL);
 	if (*fields == NULL) {
 		result = -ENOMEM;
 		goto out;
 	}
-	for (i = 0; (c = strsep(&template_fmt_ptr, "|")) != NULL &&
+	for (i = 0; (c = strsep(&template_fmt_copy, "|")) != NULL &&
 	     i < template_num_fields; i++) {
 		struct ima_template_field *f = lookup_template_field(c);
 
@@ -133,10 +138,12 @@ static int template_desc_init_fields(char *template_fmt,
 		(*fields)[i] = f;
 	}
 	*num_fields = i;
-	return 0;
 out:
-	kfree(*fields);
-	*fields = NULL;
+	if (result < 0) {
+		kfree(*fields);
+		*fields = NULL;
+	}
+	kfree(template_fmt_copy);
 	return result;
 }
 
-- 
cgit 


From 5fa9576a1b975910d975f6535fdcddc79f6adf17 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Fri, 15 Nov 2013 13:07:11 +0100
Subject: Staging: btmtk_usb: Add hdev parameter to hdev->send driver callback
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

drivers/staging/btmtk_usb/btmtk_usb.c: In function ‘btmtk_usb_probe’:
drivers/staging/btmtk_usb/btmtk_usb.c:1610: warning: assignment from incompatible pointer type

Add the new hdev parameter, cfr. commit
7bd8f09f69f8a190f9b8334a07bb0a9237612314 ("Bluetooth: Add hdev parameter to
hdev->send driver callback").

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/btmtk_usb/btmtk_usb.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/btmtk_usb/btmtk_usb.c b/drivers/staging/btmtk_usb/btmtk_usb.c
index 7a9bf3b57810..9a5ebd6cc512 100644
--- a/drivers/staging/btmtk_usb/btmtk_usb.c
+++ b/drivers/staging/btmtk_usb/btmtk_usb.c
@@ -1284,9 +1284,8 @@ done:
 	kfree_skb(skb);
 }
 
-static int btmtk_usb_send_frame(struct sk_buff *skb)
+static int btmtk_usb_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
 {
-	struct hci_dev *hdev = (struct hci_dev *)skb->dev;
 	struct btmtk_usb_data *data = hci_get_drvdata(hdev);
 	struct usb_ctrlrequest *dr;
 	struct urb *urb;
-- 
cgit 


From 2fea6cd303c0d0cd9067da31d873b6a6d5bd75e7 Mon Sep 17 00:00:00 2001
From: Oliver Hartkopp <socketcan@hartkopp.net>
Date: Thu, 21 Nov 2013 18:03:07 +0100
Subject: can: sja1000: fix {pre,post}_irq() handling and IRQ handler return
 value

This patch fixes the issue that the sja1000_interrupt() function may have
returned IRQ_NONE without processing the optional pre_irq() and post_irq()
function before. Further the irq processing counter 'n' is moved to the end of
the while statement to return correct IRQ_[NONE|HANDLED] values at error
conditions.

Reported-by: Wolfgang Grandegger <wg@grandegger.com>
Acked-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/sja1000/sja1000.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c
index 7164a999f50f..f17c3018b7c7 100644
--- a/drivers/net/can/sja1000/sja1000.c
+++ b/drivers/net/can/sja1000/sja1000.c
@@ -494,20 +494,20 @@ irqreturn_t sja1000_interrupt(int irq, void *dev_id)
 	uint8_t isrc, status;
 	int n = 0;
 
-	/* Shared interrupts and IRQ off? */
-	if (priv->read_reg(priv, SJA1000_IER) == IRQ_OFF)
-		return IRQ_NONE;
-
 	if (priv->pre_irq)
 		priv->pre_irq(priv);
 
+	/* Shared interrupts and IRQ off? */
+	if (priv->read_reg(priv, SJA1000_IER) == IRQ_OFF)
+		goto out;
+
 	while ((isrc = priv->read_reg(priv, SJA1000_IR)) &&
 	       (n < SJA1000_MAX_IRQ)) {
-		n++;
+
 		status = priv->read_reg(priv, SJA1000_SR);
 		/* check for absent controller due to hw unplug */
 		if (status == 0xFF && sja1000_is_absent(priv))
-			return IRQ_NONE;
+			goto out;
 
 		if (isrc & IRQ_WUI)
 			netdev_warn(dev, "wakeup interrupt\n");
@@ -535,7 +535,7 @@ irqreturn_t sja1000_interrupt(int irq, void *dev_id)
 				status = priv->read_reg(priv, SJA1000_SR);
 				/* check for absent controller */
 				if (status == 0xFF && sja1000_is_absent(priv))
-					return IRQ_NONE;
+					goto out;
 			}
 		}
 		if (isrc & (IRQ_DOI | IRQ_EI | IRQ_BEI | IRQ_EPI | IRQ_ALI)) {
@@ -543,8 +543,9 @@ irqreturn_t sja1000_interrupt(int irq, void *dev_id)
 			if (sja1000_err(dev, isrc, status))
 				break;
 		}
+		n++;
 	}
-
+out:
 	if (priv->post_irq)
 		priv->post_irq(priv);
 
-- 
cgit 


From e35d46adc49b469fd92bdb64fea8af93640e6651 Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Sun, 24 Nov 2013 23:31:24 +0100
Subject: can: c_can: don't call pm_runtime_get_sync() from interrupt context

The c_can driver contians a callpath (c_can_poll -> c_can_state_change ->
c_can_get_berr_counter) which may call pm_runtime_get_sync() from the IRQ
handler, which is not allowed and results in "BUG: scheduling while atomic".

This problem is fixed by introducing __c_can_get_berr_counter, which will not
call pm_runtime_get_sync().

Reported-by: Andrew Glen <AGlen@bepmarine.com>
Tested-by: Andrew Glen <AGlen@bepmarine.com>
Signed-off-by: Andrew Glen <AGlen@bepmarine.com>
Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/c_can/c_can.c | 21 +++++++++++++++------
 1 file changed, 15 insertions(+), 6 deletions(-)

diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c
index e3fc07cf2f62..e59c42b446a9 100644
--- a/drivers/net/can/c_can/c_can.c
+++ b/drivers/net/can/c_can/c_can.c
@@ -712,22 +712,31 @@ static int c_can_set_mode(struct net_device *dev, enum can_mode mode)
 	return 0;
 }
 
-static int c_can_get_berr_counter(const struct net_device *dev,
-					struct can_berr_counter *bec)
+static int __c_can_get_berr_counter(const struct net_device *dev,
+				    struct can_berr_counter *bec)
 {
 	unsigned int reg_err_counter;
 	struct c_can_priv *priv = netdev_priv(dev);
 
-	c_can_pm_runtime_get_sync(priv);
-
 	reg_err_counter = priv->read_reg(priv, C_CAN_ERR_CNT_REG);
 	bec->rxerr = (reg_err_counter & ERR_CNT_REC_MASK) >>
 				ERR_CNT_REC_SHIFT;
 	bec->txerr = reg_err_counter & ERR_CNT_TEC_MASK;
 
+	return 0;
+}
+
+static int c_can_get_berr_counter(const struct net_device *dev,
+				  struct can_berr_counter *bec)
+{
+	struct c_can_priv *priv = netdev_priv(dev);
+	int err;
+
+	c_can_pm_runtime_get_sync(priv);
+	err = __c_can_get_berr_counter(dev, bec);
 	c_can_pm_runtime_put_sync(priv);
 
-	return 0;
+	return err;
 }
 
 /*
@@ -872,7 +881,7 @@ static int c_can_handle_state_change(struct net_device *dev,
 	if (unlikely(!skb))
 		return 0;
 
-	c_can_get_berr_counter(dev, &bec);
+	__c_can_get_berr_counter(dev, &bec);
 	reg_err_counter = priv->read_reg(priv, C_CAN_ERR_CNT_REG);
 	rx_err_passive = (reg_err_counter & ERR_CNT_RP_MASK) >>
 				ERR_CNT_RP_SHIFT;
-- 
cgit 


From 7ee330c7b3b738847bf297912b371bbcec3bc994 Mon Sep 17 00:00:00 2001
From: Holger Bechtold <Holger.Bechtold@gmx.net>
Date: Mon, 25 Nov 2013 15:48:19 +0100
Subject: can: c_can: fix calculation of transmitted bytes on tx complete

The number of bytes transmitted was not updated correctly, if several CAN
messages (with different length) were transmitted in one 'bunch'. Thus
programs like 'ifconfig' showed wrong transmit byte counts. Reason was, that
the message object whose DLC is to be read was not necessarily the active one
at the time when

    priv->read_reg(priv, C_CAN_IFACE(MSGCTRL_REG, 0)) & IF_MCONT_DLC_MASK;

was executed.

Signed-off-by: Holger Bechtold <Holger.Bechtold@gmx.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/c_can/c_can.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c
index e59c42b446a9..77061eebb034 100644
--- a/drivers/net/can/c_can/c_can.c
+++ b/drivers/net/can/c_can/c_can.c
@@ -763,6 +763,7 @@ static void c_can_do_tx(struct net_device *dev)
 		if (!(val & (1 << (msg_obj_no - 1)))) {
 			can_get_echo_skb(dev,
 					msg_obj_no - C_CAN_MSG_OBJ_TX_FIRST);
+			c_can_object_get(dev, 0, msg_obj_no, IF_COMM_ALL);
 			stats->tx_bytes += priv->read_reg(priv,
 					C_CAN_IFACE(MSGCTRL_REG, 0))
 					& IF_MCONT_DLC_MASK;
-- 
cgit 


From 9ecfc0f45033584ec58617cf6ec37f75833d97e8 Mon Sep 17 00:00:00 2001
From: Larry Finger <Larry.Finger@lwfinger.net>
Date: Sun, 17 Nov 2013 13:32:15 -0600
Subject: staging: r8188eu: Fix AP mode

Two code lines were accidentally deleted.  Restore them.

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8188eu/core/rtw_ap.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/staging/rtl8188eu/core/rtw_ap.c b/drivers/staging/rtl8188eu/core/rtw_ap.c
index 2c678f409573..2f548ebada59 100644
--- a/drivers/staging/rtl8188eu/core/rtw_ap.c
+++ b/drivers/staging/rtl8188eu/core/rtw_ap.c
@@ -1115,6 +1115,9 @@ int rtw_check_beacon_data(struct adapter *padapter, u8 *pbuf,  int len)
 			return _FAIL;
 	}
 
+	/* fix bug of flush_cam_entry at STOP AP mode */
+	psta->state |= WIFI_AP_STATE;
+	rtw_indicate_connect(padapter);
 	pmlmepriv->cur_network.join_res = true;/* for check if already set beacon */
 	return ret;
 }
-- 
cgit 


From b39f15c972c462903208531b82f9b34ba8ef3ec0 Mon Sep 17 00:00:00 2001
From: Peng Tao <bergwolf@gmail.com>
Date: Thu, 21 Nov 2013 22:42:45 +0800
Subject: staging/lustre/ptlrpc: fix ptlrpc_stop_pinger logic

It was introduced due to a patch hunk when porting
commit 20802057 (staging/lustre/ptlrpc: race in pinger).

Cc: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Peng Tao <bergwolf@gmail.com>
Cc: stable <stable@vger.kernel.org> # 3.12
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/lustre/lustre/ptlrpc/pinger.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/lustre/lustre/ptlrpc/pinger.c b/drivers/staging/lustre/lustre/ptlrpc/pinger.c
index 5dec771d70ee..4d340f4a2198 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/pinger.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/pinger.c
@@ -409,8 +409,8 @@ int ptlrpc_stop_pinger(void)
 	struct l_wait_info lwi = { 0 };
 	int rc = 0;
 
-	if (!thread_is_init(&pinger_thread) &&
-	    !thread_is_stopped(&pinger_thread))
+	if (thread_is_init(&pinger_thread) ||
+	    thread_is_stopped(&pinger_thread))
 		return -EALREADY;
 
 	ptlrpc_pinger_remove_timeouts();
-- 
cgit 


From 67296874eb1cc80317bf2a8fba22b494e21eb29b Mon Sep 17 00:00:00 2001
From: Olav Haugan <ohaugan@codeaurora.org>
Date: Fri, 22 Nov 2013 09:30:41 -0800
Subject: staging: zsmalloc: Ensure handle is never 0 on success

zsmalloc encodes a handle using the pfn and an object
index. On hardware platforms with physical memory starting
at 0x0 the pfn can be 0. This causes the encoded handle to be
0 and is incorrectly interpreted as an allocation failure.

This issue affects all current and future SoCs with physical
memory starting at 0x0. All MSM8974 SoCs which includes
Google Nexus 5 devices are affected.

To prevent this false error we ensure that the encoded handle
will not be 0 when allocation succeeds.

Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/zsmalloc/zsmalloc-main.c | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/drivers/staging/zsmalloc/zsmalloc-main.c b/drivers/staging/zsmalloc/zsmalloc-main.c
index 1a67537dbc56..3b950e5a918f 100644
--- a/drivers/staging/zsmalloc/zsmalloc-main.c
+++ b/drivers/staging/zsmalloc/zsmalloc-main.c
@@ -430,7 +430,12 @@ static struct page *get_next_page(struct page *page)
 	return next;
 }
 
-/* Encode <page, obj_idx> as a single handle value */
+/*
+ * Encode <page, obj_idx> as a single handle value.
+ * On hardware platforms with physical memory starting at 0x0 the pfn
+ * could be 0 so we ensure that the handle will never be 0 by adjusting the
+ * encoded obj_idx value before encoding.
+ */
 static void *obj_location_to_handle(struct page *page, unsigned long obj_idx)
 {
 	unsigned long handle;
@@ -441,17 +446,21 @@ static void *obj_location_to_handle(struct page *page, unsigned long obj_idx)
 	}
 
 	handle = page_to_pfn(page) << OBJ_INDEX_BITS;
-	handle |= (obj_idx & OBJ_INDEX_MASK);
+	handle |= ((obj_idx + 1) & OBJ_INDEX_MASK);
 
 	return (void *)handle;
 }
 
-/* Decode <page, obj_idx> pair from the given object handle */
+/*
+ * Decode <page, obj_idx> pair from the given object handle. We adjust the
+ * decoded obj_idx back to its original value since it was adjusted in
+ * obj_location_to_handle().
+ */
 static void obj_handle_to_location(unsigned long handle, struct page **page,
 				unsigned long *obj_idx)
 {
 	*page = pfn_to_page(handle >> OBJ_INDEX_BITS);
-	*obj_idx = handle & OBJ_INDEX_MASK;
+	*obj_idx = (handle & OBJ_INDEX_MASK) - 1;
 }
 
 static unsigned long obj_idx_to_offset(struct page *page,
-- 
cgit 


From ac01810c9d2814238f08a227062e66a35a0e1ea2 Mon Sep 17 00:00:00 2001
From: Laxman Dewangan <ldewangan@nvidia.com>
Date: Mon, 25 Nov 2013 19:39:47 +0530
Subject: irq: Enable all irqs unconditionally in irq_resume

When the system enters suspend, it disables all interrupts in
suspend_device_irqs(), including the interrupts marked EARLY_RESUME.

On the resume side things are different. The EARLY_RESUME interrupts
are reenabled in sys_core_ops->resume and the non EARLY_RESUME
interrupts are reenabled in the normal system resume path.

When suspend_noirq() failed or suspend is aborted for any other
reason, we might omit the resume side call to sys_core_ops->resume()
and therefor the interrupts marked EARLY_RESUME are not reenabled and
stay disabled forever.

To solve this, enable all irqs unconditionally in irq_resume()
regardless whether interrupts marked EARLY_RESUMEhave been already
enabled or not.

This might try to reenable already enabled interrupts in the non
failure case, but the only affected platform is XEN and it has been
confirmed that it does not cause any side effects.

[ tglx: Massaged changelog. ]

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by-and-tested-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Cc: <ian.campbell@citrix.com>
Cc: <rjw@rjwysocki.net>
Cc: <len.brown@intel.com>
Cc: <gregkh@linuxfoundation.org>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/1385388587-16442-1-git-send-email-ldewangan@nvidia.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 kernel/irq/pm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/irq/pm.c b/kernel/irq/pm.c
index cb228bf21760..abcd6ca86cb7 100644
--- a/kernel/irq/pm.c
+++ b/kernel/irq/pm.c
@@ -50,7 +50,7 @@ static void resume_irqs(bool want_early)
 		bool is_early = desc->action &&
 			desc->action->flags & IRQF_EARLY_RESUME;
 
-		if (is_early != want_early)
+		if (!is_early && want_early)
 			continue;
 
 		raw_spin_lock_irqsave(&desc->lock, flags);
-- 
cgit 


From 6dd1e357372c21ec37b6902380bd47b278d168f1 Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Tue, 12 Nov 2013 22:51:28 -0800
Subject: ARM: omap: fix warning with LPAE build

Some omap3 code is throwing a warning:
arch/arm/mach-omap2/pm34xx.c: In function 'omap3_save_secure_ram_context':
arch/arm/mach-omap2/pm34xx.c:123:32: warning: cast to pointer from
  integer of different size [-Wint-to-pointer-cast]

In reality this code will never actually execute with LPAE=y, since
Cortex-A8 doesn't support it. So downcasting the __pa() is safe in
this case.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/pm34xx.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index 93b80e5da8d4..1f3770a8a728 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -120,7 +120,7 @@ static void omap3_save_secure_ram_context(void)
 		 * will hang the system.
 		 */
 		pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_ON);
-		ret = _omap_save_secure_sram((u32 *)
+		ret = _omap_save_secure_sram((u32 *)(unsigned long)
 				__pa(omap3_secure_ram_storage));
 		pwrdm_set_next_pwrst(mpu_pwrdm, mpu_next_state);
 		/* Following is for error tracking, it should not happen */
-- 
cgit 


From 9886e1fd096b8004a25bb8b7e5690ad1408ebc6f Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Mon, 25 Nov 2013 11:49:47 -0700
Subject: ARM: tegra: Provide dummy powergate implementation

In order to support increased build test coverage for drivers, implement
dummies for the powergate implementation. This will allow the drivers to
be built without requiring support for Tegra to be selected.

This patch solves the following build errors, which can be triggered in
v3.13-rc1 by selecting DRM_TEGRA without ARCH_TEGRA:

drivers/built-in.o: In function `gr3d_remove':
drivers/gpu/drm/tegra/gr3d.c:321: undefined reference to `tegra_powergate_power_off'
drivers/gpu/drm/tegra/gr3d.c:325: undefined reference to `tegra_powergate_power_off'
drivers/built-in.o: In function `gr3d_probe':
drivers/gpu/drm/tegra/gr3d.c:266: undefined reference to `tegra_powergate_sequence_power_up'
drivers/gpu/drm/tegra/gr3d.c:273: undefined reference to `tegra_powergate_sequence_power_up'

Signed-off-by: Thierry Reding <treding@nvidia.com>
[swarren, updated commit description]
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 include/linux/tegra-powergate.h | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/include/linux/tegra-powergate.h b/include/linux/tegra-powergate.h
index c98cfa406952..fd4498329c7c 100644
--- a/include/linux/tegra-powergate.h
+++ b/include/linux/tegra-powergate.h
@@ -45,6 +45,7 @@ struct clk;
 
 #define TEGRA_POWERGATE_3D0	TEGRA_POWERGATE_3D
 
+#ifdef CONFIG_ARCH_TEGRA
 int tegra_powergate_is_powered(int id);
 int tegra_powergate_power_on(int id);
 int tegra_powergate_power_off(int id);
@@ -52,5 +53,31 @@ int tegra_powergate_remove_clamping(int id);
 
 /* Must be called with clk disabled, and returns with clk enabled */
 int tegra_powergate_sequence_power_up(int id, struct clk *clk);
+#else
+static inline int tegra_powergate_is_powered(int id)
+{
+	return -ENOSYS;
+}
+
+static inline int tegra_powergate_power_on(int id)
+{
+	return -ENOSYS;
+}
+
+static inline int tegra_powergate_power_off(int id)
+{
+	return -ENOSYS;
+}
+
+static inline int tegra_powergate_remove_clamping(int id)
+{
+	return -ENOSYS;
+}
+
+static inline int tegra_powergate_sequence_power_up(int id, struct clk *clk)
+{
+	return -ENOSYS;
+}
+#endif
 
 #endif /* _MACH_TEGRA_POWERGATE_H_ */
-- 
cgit 


From 5094d271715a5bd0f7f4adb38d825ce6903eb6eb Mon Sep 17 00:00:00 2001
From: Thomas Renninger <trenn@suse.de>
Date: Sat, 16 Nov 2013 14:39:21 +0100
Subject: tools: cpupower: Add cpupower-idle-set(1) manpage

The cpupower idle-set subcommand was introduce recently.
This patch provides the missing manpage.

If cpupower is properly installed it will show up automatically
(similar to git), when invoking:
cpupower help idle-set
or
cpupower idle-set --help

Some parts have been taken over and adjusted from
git commit 62d6ae880e3e76098
documentation submitted by Carsten Emde.

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 tools/power/cpupower/man/cpupower-idle-info.1 |  3 +-
 tools/power/cpupower/man/cpupower-idle-set.1  | 71 +++++++++++++++++++++++++++
 2 files changed, 73 insertions(+), 1 deletion(-)
 create mode 100644 tools/power/cpupower/man/cpupower-idle-set.1

diff --git a/tools/power/cpupower/man/cpupower-idle-info.1 b/tools/power/cpupower/man/cpupower-idle-info.1
index 4178effd9e99..7b3646adb92f 100644
--- a/tools/power/cpupower/man/cpupower-idle-info.1
+++ b/tools/power/cpupower/man/cpupower-idle-info.1
@@ -87,4 +87,5 @@ Thomas Renninger <trenn@suse.de>
 .fi
 .SH "SEE ALSO"
 .LP
-cpupower(1), cpupower\-monitor(1), cpupower\-info(1), cpupower\-set(1)
+cpupower(1), cpupower\-monitor(1), cpupower\-info(1), cpupower\-set(1),
+cpupower\-idle\-set(1)
diff --git a/tools/power/cpupower/man/cpupower-idle-set.1 b/tools/power/cpupower/man/cpupower-idle-set.1
new file mode 100644
index 000000000000..6b1607272a5b
--- /dev/null
+++ b/tools/power/cpupower/man/cpupower-idle-set.1
@@ -0,0 +1,71 @@
+.TH "CPUPOWER-IDLE-SET" "1" "0.1" "" "cpupower Manual"
+.SH "NAME"
+.LP
+cpupower idle\-set \- Utility to set cpu idle state specific kernel options
+.SH "SYNTAX"
+.LP
+cpupower [ \-c cpulist ] idle\-info [\fIoptions\fP]
+.SH "DESCRIPTION"
+.LP
+The cpupower idle\-set subcommand allows to set cpu idle, also called cpu
+sleep state, specific options offered by the kernel. One example is disabling
+sleep states. This can be handy for power vs performance tuning.
+.SH "OPTIONS"
+.LP
+.TP
+\fB\-d\fR \fB\-\-disable\fR
+Disable a specific processor sleep state.
+.TP
+\fB\-e\fR \fB\-\-enable\fR
+Enable a specific processor sleep state.
+
+.SH "REMARKS"
+.LP
+Cpuidle Governors Policy on Disabling Sleep States
+
+.RS 4
+Depending on the used  cpuidle governor, implementing the kernel policy
+how to choose sleep states, subsequent sleep states on this core, might get
+disabled as well.
+
+There are two cpuidle governors ladder and menu. While the ladder
+governor is always available, if CONFIG_CPU_IDLE is selected, the
+menu governor additionally requires CONFIG_NO_HZ.
+
+The behavior and the effect of the disable variable depends on the
+implementation of a particular governor. In the ladder governor, for
+example, it is not coherent, i.e. if one is disabling a light state,
+then all deeper states are disabled as well. Likewise, if one enables a
+deep state but a lighter state still is disabled, then this has no effect.
+.RE
+.LP
+Disabling the Lightest Sleep State may not have any Affect
+
+.RS 4
+If criteria are not met to enter deeper sleep states and the lightest sleep
+state is chosen when idle, the kernel may still enter this sleep state,
+irrespective of whether it is disabled or not. This is also reflected in
+the usage count of the disabled sleep state when using the cpupower idle-info
+command.
+.RE
+.LP
+Selecting specific CPU Cores
+
+.RS 4
+By default processor sleep states of all CPU cores are set. Please refer
+to the cpupower(1) manpage in the \-\-cpu option section how to disable
+C-states of specific cores.
+.RE
+.SH "FILES"
+.nf
+\fI/sys/devices/system/cpu/cpu*/cpuidle/state*\fP
+\fI/sys/devices/system/cpu/cpuidle/*\fP
+.fi
+.SH "AUTHORS"
+.nf
+Thomas Renninger <trenn@suse.de>
+.fi
+.SH "SEE ALSO"
+.LP
+cpupower(1), cpupower\-monitor(1), cpupower\-info(1), cpupower\-set(1),
+cpupower\-idle\-info(1)
-- 
cgit 


From f4a5d17efec95ee74113df62943494a2197c8bae Mon Sep 17 00:00:00 2001
From: Thomas Renninger <trenn@suse.de>
Date: Sat, 16 Nov 2013 14:39:22 +0100
Subject: tools: cpupower: fix wrong err msg not supported vs not available

idlestates in sysfs are counted from 0.

This fixes a wrong error message.
Current behavior on a machine with 4 sleep states is:

cpupower idle-set -e 4
Idlestate 4 enabled on CPU 0

-----Wrong---------------------
cpupower idle-set -e 5
Idlestate enabling not supported by kernel
-----Must and now will be -----
cpupower idle-set -e 5
Idlestate 6 not available on CPU 0
-------------------------------

cpupower idle-set -e 6
Idlestate 6 not available on CPU 0

Signed-off-by: Thomas Renninger <trenn@suse.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 tools/power/cpupower/utils/helpers/sysfs.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/power/cpupower/utils/helpers/sysfs.c b/tools/power/cpupower/utils/helpers/sysfs.c
index 5cdc600e8152..851c7a16ca49 100644
--- a/tools/power/cpupower/utils/helpers/sysfs.c
+++ b/tools/power/cpupower/utils/helpers/sysfs.c
@@ -278,7 +278,7 @@ static char *sysfs_idlestate_get_one_string(unsigned int cpu,
 int sysfs_is_idlestate_disabled(unsigned int cpu,
 				unsigned int idlestate)
 {
-	if (sysfs_get_idlestate_count(cpu) < idlestate)
+	if (sysfs_get_idlestate_count(cpu) <= idlestate)
 		return -1;
 
 	if (!sysfs_idlestate_file_exists(cpu, idlestate,
@@ -303,7 +303,7 @@ int sysfs_idlestate_disable(unsigned int cpu,
 	char value[SYSFS_PATH_MAX];
 	int bytes_written;
 
-	if (sysfs_get_idlestate_count(cpu) < idlestate)
+	if (sysfs_get_idlestate_count(cpu) <= idlestate)
 		return -1;
 
 	if (!sysfs_idlestate_file_exists(cpu, idlestate,
-- 
cgit 


From 33cb667a00f841fa036ad79f1aaaf7d6380c971d Mon Sep 17 00:00:00 2001
From: Dave Martin <Dave.Martin@arm.com>
Date: Mon, 25 Nov 2013 16:16:25 +0000
Subject: ARM: vexpress/TC2: Implement MCPM power_down_finish()

This patch implements the power_down_finish() method for TC2, to
enable the kernel to confirm when CPUs are safely powered down.

The information required for determining when a CPU is parked
cannot be obtained from any single place, so a few sources of
information must be combined:

  * mcpm_cpu_power_down() must be pending for the CPU, so that we
    don't get confused by false STANDBYWFI positives arising from
    CPUidle.  This is detected by waiting for the tc2_pm use count
    for the target CPU to reach 0.

  * Either the SPC must report that the CPU has asserted
    STANDBYWFI, or the TC2 tile's reset control logic must be
    holding the CPU in reset.

    Just checking for STANDBYWFI is not sufficient, because this
    signal is not latched when the the cluster is clamped off and
    powered down: the relevant status bits just drop to zero.  This
    means that STANDBYWFI status cannot be used for reliable
    detection of the last CPU in a cluster reaching WFI.

This patch is required in order for kexec to work with MCPM on TC2.

MCPM code was changed in commit 0de0d6467525 ('ARM: 7848/1: mcpm:
Implement cpu_kill() to synchronise on powerdown'), and since then it
will hit a WARN_ON_ONCE() due to power_down_finish not being implemented
on the TC2 platform.

Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Reviewed-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/mach-vexpress/spc.c    | 40 +++++++++++++++++++++++++
 arch/arm/mach-vexpress/spc.h    |  1 +
 arch/arm/mach-vexpress/tc2_pm.c | 66 +++++++++++++++++++++++++++++++++++++----
 3 files changed, 102 insertions(+), 5 deletions(-)

diff --git a/arch/arm/mach-vexpress/spc.c b/arch/arm/mach-vexpress/spc.c
index 033d34dcbd3f..c26ef5b92ca7 100644
--- a/arch/arm/mach-vexpress/spc.c
+++ b/arch/arm/mach-vexpress/spc.c
@@ -53,6 +53,11 @@
 #define A15_BX_ADDR0		0x68
 #define A7_BX_ADDR0		0x78
 
+/* SPC CPU/cluster reset statue */
+#define STANDBYWFI_STAT		0x3c
+#define STANDBYWFI_STAT_A15_CPU_MASK(cpu)	(1 << (cpu))
+#define STANDBYWFI_STAT_A7_CPU_MASK(cpu)	(1 << (3 + (cpu)))
+
 /* SPC system config interface registers */
 #define SYSCFG_WDATA		0x70
 #define SYSCFG_RDATA		0x74
@@ -213,6 +218,41 @@ void ve_spc_powerdown(u32 cluster, bool enable)
 	writel_relaxed(enable, info->baseaddr + pwdrn_reg);
 }
 
+static u32 standbywfi_cpu_mask(u32 cpu, u32 cluster)
+{
+	return cluster_is_a15(cluster) ?
+		  STANDBYWFI_STAT_A15_CPU_MASK(cpu)
+		: STANDBYWFI_STAT_A7_CPU_MASK(cpu);
+}
+
+/**
+ * ve_spc_cpu_in_wfi(u32 cpu, u32 cluster)
+ *
+ * @cpu: mpidr[7:0] bitfield describing CPU affinity level within cluster
+ * @cluster: mpidr[15:8] bitfield describing cluster affinity level
+ *
+ * @return: non-zero if and only if the specified CPU is in WFI
+ *
+ * Take care when interpreting the result of this function: a CPU might
+ * be in WFI temporarily due to idle, and is not necessarily safely
+ * parked.
+ */
+int ve_spc_cpu_in_wfi(u32 cpu, u32 cluster)
+{
+	int ret;
+	u32 mask = standbywfi_cpu_mask(cpu, cluster);
+
+	if (cluster >= MAX_CLUSTERS)
+		return 1;
+
+	ret = readl_relaxed(info->baseaddr + STANDBYWFI_STAT);
+
+	pr_debug("%s: PCFGREG[0x%X] = 0x%08X, mask = 0x%X\n",
+		 __func__, STANDBYWFI_STAT, ret, mask);
+
+	return ret & mask;
+}
+
 static int ve_spc_get_performance(int cluster, u32 *freq)
 {
 	struct ve_spc_opp *opps = info->opps[cluster];
diff --git a/arch/arm/mach-vexpress/spc.h b/arch/arm/mach-vexpress/spc.h
index dbd44c3720f9..793d065243b9 100644
--- a/arch/arm/mach-vexpress/spc.h
+++ b/arch/arm/mach-vexpress/spc.h
@@ -20,5 +20,6 @@ void ve_spc_global_wakeup_irq(bool set);
 void ve_spc_cpu_wakeup_irq(u32 cluster, u32 cpu, bool set);
 void ve_spc_set_resume_addr(u32 cluster, u32 cpu, u32 addr);
 void ve_spc_powerdown(u32 cluster, bool enable);
+int ve_spc_cpu_in_wfi(u32 cpu, u32 cluster);
 
 #endif
diff --git a/arch/arm/mach-vexpress/tc2_pm.c b/arch/arm/mach-vexpress/tc2_pm.c
index 05a364c5077a..29e7785a54bc 100644
--- a/arch/arm/mach-vexpress/tc2_pm.c
+++ b/arch/arm/mach-vexpress/tc2_pm.c
@@ -12,6 +12,7 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/kernel.h>
@@ -32,11 +33,17 @@
 #include "spc.h"
 
 /* SCC conf registers */
+#define RESET_CTRL		0x018
+#define RESET_A15_NCORERESET(cpu)	(1 << (2 + (cpu)))
+#define RESET_A7_NCORERESET(cpu)	(1 << (16 + (cpu)))
+
 #define A15_CONF		0x400
 #define A7_CONF			0x500
 #define SYS_INFO		0x700
 #define SPC_BASE		0xb00
 
+static void __iomem *scc;
+
 /*
  * We can't use regular spinlocks. In the switcher case, it is possible
  * for an outbound CPU to call power_down() after its inbound counterpart
@@ -190,6 +197,55 @@ static void tc2_pm_power_down(void)
 	tc2_pm_down(0);
 }
 
+static int tc2_core_in_reset(unsigned int cpu, unsigned int cluster)
+{
+	u32 mask = cluster ?
+		  RESET_A7_NCORERESET(cpu)
+		: RESET_A15_NCORERESET(cpu);
+
+	return !(readl_relaxed(scc + RESET_CTRL) & mask);
+}
+
+#define POLL_MSEC 10
+#define TIMEOUT_MSEC 1000
+
+static int tc2_pm_power_down_finish(unsigned int cpu, unsigned int cluster)
+{
+	unsigned tries;
+
+	pr_debug("%s: cpu %u cluster %u\n", __func__, cpu, cluster);
+	BUG_ON(cluster >= TC2_CLUSTERS || cpu >= TC2_MAX_CPUS_PER_CLUSTER);
+
+	for (tries = 0; tries < TIMEOUT_MSEC / POLL_MSEC; ++tries) {
+		/*
+		 * Only examine the hardware state if the target CPU has
+		 * caught up at least as far as tc2_pm_down():
+		 */
+		if (ACCESS_ONCE(tc2_pm_use_count[cpu][cluster]) == 0) {
+			pr_debug("%s(cpu=%u, cluster=%u): RESET_CTRL = 0x%08X\n",
+				 __func__, cpu, cluster,
+				 readl_relaxed(scc + RESET_CTRL));
+
+			/*
+			 * We need the CPU to reach WFI, but the power
+			 * controller may put the cluster in reset and
+			 * power it off as soon as that happens, before
+			 * we have a chance to see STANDBYWFI.
+			 *
+			 * So we need to check for both conditions:
+			 */
+			if (tc2_core_in_reset(cpu, cluster) ||
+			    ve_spc_cpu_in_wfi(cpu, cluster))
+				return 0; /* success: the CPU is halted */
+		}
+
+		/* Otherwise, wait and retry: */
+		msleep(POLL_MSEC);
+	}
+
+	return -ETIMEDOUT; /* timeout */
+}
+
 static void tc2_pm_suspend(u64 residency)
 {
 	unsigned int mpidr, cpu, cluster;
@@ -232,10 +288,11 @@ static void tc2_pm_powered_up(void)
 }
 
 static const struct mcpm_platform_ops tc2_pm_power_ops = {
-	.power_up	= tc2_pm_power_up,
-	.power_down	= tc2_pm_power_down,
-	.suspend	= tc2_pm_suspend,
-	.powered_up	= tc2_pm_powered_up,
+	.power_up		= tc2_pm_power_up,
+	.power_down		= tc2_pm_power_down,
+	.power_down_finish	= tc2_pm_power_down_finish,
+	.suspend		= tc2_pm_suspend,
+	.powered_up		= tc2_pm_powered_up,
 };
 
 static bool __init tc2_pm_usage_count_init(void)
@@ -269,7 +326,6 @@ static void __naked tc2_pm_power_up_setup(unsigned int affinity_level)
 static int __init tc2_pm_init(void)
 {
 	int ret, irq;
-	void __iomem *scc;
 	u32 a15_cluster_id, a7_cluster_id, sys_info;
 	struct device_node *np;
 
-- 
cgit 


From 7ce93f3186119754ec7a646bcbeb1f80e4214767 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Mon, 25 Nov 2013 14:23:45 -0800
Subject: ARM: OMAP2+: Fix more missing data for omap3.dtsi file

After dropping the duplicate data in hwmod that now should come from
the .dts files, I noticed few more entries missing. Let's add these
as otherwise devices relying on these won't work.

Looks like the side tone entries are bundled into the mcbsp1 to 3,
so that may needs some special handling in the hwmod code as it's
currently trying to look up mcbsp2_sidetone and mcbsp3_sidetone
entries.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap3.dtsi | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index f3a0c26ed0c2..daabf99d402a 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -82,6 +82,13 @@
 		ranges;
 		ti,hwmods = "l3_main";
 
+		aes: aes@480c5000 {
+			compatible = "ti,omap3-aes";
+			ti,hwmods = "aes";
+			reg = <0x480c5000 0x50>;
+			interrupts = <0>;
+		};
+
 		counter32k: counter@48320000 {
 			compatible = "ti,omap-counter32k";
 			reg = <0x48320000 0x20>;
@@ -260,6 +267,13 @@
 			ti,hwmods = "i2c3";
 		};
 
+		mailbox: mailbox@48094000 {
+			compatible = "ti,omap3-mailbox";
+			ti,hwmods = "mailbox";
+			reg = <0x48094000 0x200>;
+			interrupts = <26>;
+		};
+
 		mcspi1: spi@48098000 {
 			compatible = "ti,omap2-mcspi";
 			reg = <0x48098000 0x100>;
@@ -357,6 +371,13 @@
 			dma-names = "tx", "rx";
 		};
 
+		mmu_isp: mmu@480bd400 {
+			compatible = "ti,omap3-mmu-isp";
+			ti,hwmods = "mmu_isp";
+			reg = <0x480bd400 0x80>;
+			interrupts = <8>;
+		};
+
 		wdt2: wdt@48314000 {
 			compatible = "ti,omap3-wdt";
 			reg = <0x48314000 0x80>;
@@ -442,6 +463,27 @@
 			dma-names = "tx", "rx";
 		};
 
+		sham: sham@480c3000 {
+			compatible = "ti,omap3-sham";
+			ti,hwmods = "sham";
+			reg = <0x480c3000 0x64>;
+			interrupts = <49>;
+		};
+
+		smartreflex_core: smartreflex@480cb000 {
+			compatible = "ti,omap3-smartreflex-core";
+			ti,hwmods = "smartreflex_core";
+			reg = <0x480cb000 0x400>;
+			interrupts = <19>;
+		};
+
+		smartreflex_mpu_iva: smartreflex@480c9000 {
+			compatible = "ti,omap3-smartreflex-iva";
+			ti,hwmods = "smartreflex_mpu_iva";
+			reg = <0x480c9000 0x400>;
+			interrupts = <18>;
+		};
+
 		timer1: timer@48318000 {
 			compatible = "ti,omap3430-timer";
 			reg = <0x48318000 0x400>;
-- 
cgit 


From 26f67a31265d459aa6f93b0a1ecbd64e7435519d Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Mon, 25 Nov 2013 14:23:45 -0800
Subject: ARM: OMAP2+: Add fixed regulator to omap2plus_defconfig

We do not have REGULATOR_FIXED selected if no boards are selected
and we boot with device tree. This can cause various devices to
fail.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/configs/omap2plus_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig
index 98a50c309b90..bfa80a11e8c7 100644
--- a/arch/arm/configs/omap2plus_defconfig
+++ b/arch/arm/configs/omap2plus_defconfig
@@ -173,6 +173,7 @@ CONFIG_MFD_PALMAS=y
 CONFIG_MFD_TPS65217=y
 CONFIG_MFD_TPS65910=y
 CONFIG_TWL6040_CORE=y
+CONFIG_REGULATOR_FIXED_VOLTAGE=y
 CONFIG_REGULATOR_PALMAS=y
 CONFIG_REGULATOR_TPS65023=y
 CONFIG_REGULATOR_TPS6507X=y
-- 
cgit 


From edd5eb4e99e4153ea7be05390fda542d986bf28d Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Mon, 25 Nov 2013 14:23:45 -0800
Subject: ARM: OMAP2+: Fix eMMC on n900 with device tree

Looks like we need to configure the regulators and use the pdata
quirk to make eMMC work with device tree.

It seems that mostly vaux3 is used, and only some earlier revisions
used vmmc2. This has been tested to work on devices where the
system_rev passed by the bootloader has versions 0x0010, 0x2101
and 0x2204.

Cc: devicetree@vger.kernel.org
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Sebastian Reichel <sre@debian.org>
[tony@atomide.com: updated with pinctrl changes and comments from Sebastian]
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap3-n900.dts   | 23 ++++++++++++++++++++++-
 arch/arm/mach-omap2/pdata-quirks.c |  1 +
 2 files changed, 23 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts
index c4f20bfe4cce..c2c306d13b87 100644
--- a/arch/arm/boot/dts/omap3-n900.dts
+++ b/arch/arm/boot/dts/omap3-n900.dts
@@ -125,6 +125,21 @@
 		>;
 	};
 
+	mmc2_pins: pinmux_mmc2_pins {
+		pinctrl-single,pins = <
+			0x128 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_clk */
+			0x12a (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_cmd */
+			0x12c (PIN_INPUT_PULLUP | MUX_MODE0) 	/* sdmmc2_dat0 */
+			0x12e (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_dat1 */
+			0x130 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_dat2 */
+			0x132 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_dat3 */
+			0x134 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_dat4 */
+			0x136 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_dat5 */
+			0x138 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_dat6 */
+			0x13a (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_dat7 */
+		>;
+	};
+
 	display_pins: pinmux_display_pins {
 		pinctrl-single,pins = <
 			0x0d4 (PIN_OUTPUT | MUX_MODE4)		/* RX51_LCD_RESET_GPIO */
@@ -358,8 +373,14 @@
 	cd-gpios = <&gpio6 0 GPIO_ACTIVE_HIGH>; /* 160 */
 };
 
+/* most boards use vaux3, only some old versions use vmmc2 instead */
 &mmc2 {
-	status = "disabled";
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc2_pins>;
+	vmmc-supply = <&vaux3>;
+	vmmc_aux-supply = <&vsim>;
+	bus-width = <8>;
+	non-removable;
 };
 
 &mmc3 {
diff --git a/arch/arm/mach-omap2/pdata-quirks.c b/arch/arm/mach-omap2/pdata-quirks.c
index 10c71450cf63..39f020c982e8 100644
--- a/arch/arm/mach-omap2/pdata-quirks.c
+++ b/arch/arm/mach-omap2/pdata-quirks.c
@@ -139,6 +139,7 @@ struct of_dev_auxdata omap_auxdata_lookup[] __initdata = {
 
 static struct pdata_init pdata_quirks[] __initdata = {
 #ifdef CONFIG_ARCH_OMAP3
+	{ "nokia,omap3-n900", hsmmc2_internal_input_clk, },
 	{ "nokia,omap3-n9", hsmmc2_internal_input_clk, },
 	{ "nokia,omap3-n950", hsmmc2_internal_input_clk, },
 	{ "isee,omap3-igep0020", omap3_igep0020_legacy_init, },
-- 
cgit 


From c61248afa8190ae3f47ee67f46e3c9b584a73d31 Mon Sep 17 00:00:00 2001
From: Doug Anderson <dianders@chromium.org>
Date: Wed, 23 Oct 2013 06:11:01 -0700
Subject: ARM: dts: Add max77686 RTC interrupt to cros5250-common

Without the interrupt you'll get problems if you enable
CONFIG_RTC_DRV_MAX77686.  Setup the interrupt properly in the device
tree.

Signed-off-by: Doug Anderson <dianders@chromium.org>
Tested-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: stable@vger.kernel.org
---
 arch/arm/boot/dts/cros5250-common.dtsi | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/arm/boot/dts/cros5250-common.dtsi b/arch/arm/boot/dts/cros5250-common.dtsi
index dc259e8b8a73..9b186ac06c8b 100644
--- a/arch/arm/boot/dts/cros5250-common.dtsi
+++ b/arch/arm/boot/dts/cros5250-common.dtsi
@@ -27,6 +27,13 @@
 		i2c2_bus: i2c2-bus {
 			samsung,pin-pud = <0>;
 		};
+
+		max77686_irq: max77686-irq {
+			samsung,pins = "gpx3-2";
+			samsung,pin-function = <0>;
+			samsung,pin-pud = <0>;
+			samsung,pin-drv = <0>;
+		};
 	};
 
 	i2c@12C60000 {
@@ -35,6 +42,11 @@
 
 		max77686@09 {
 			compatible = "maxim,max77686";
+			interrupt-parent = <&gpx3>;
+			interrupts = <2 0>;
+			pinctrl-names = "default";
+			pinctrl-0 = <&max77686_irq>;
+			wakeup-source;
 			reg = <0x09>;
 
 			voltage-regulators {
-- 
cgit 


From 91be0998578a1001db1382012676ee0a69d5cee3 Mon Sep 17 00:00:00 2001
From: Lv Zheng <lv.zheng@intel.com>
Date: Sat, 23 Nov 2013 07:27:27 +0800
Subject: ACPI: Clean up incorrect inclusions of ACPICA headers

Header file <acpi/acpi.h> contains environemnt settings and architecture
specific implementation that should be included before any other ACPICA
headers in order to keep a consistent build environment for ACPICA users.
The following internal ACPICA header files should be included from
<acpi/acpi.h> and should not be included by other kernel files:
  <acpi/acpiosxf.h>
  <acpi/acpixf.h>

Clean up incorrect inclusions of these files from non-ACPICA source
files.

[rjw: Subject and changelog]
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/acpi/nvs.c           | 1 -
 drivers/hwmon/asus_atk0110.c | 1 -
 2 files changed, 2 deletions(-)

diff --git a/drivers/acpi/nvs.c b/drivers/acpi/nvs.c
index 266bc58ce0ce..386a9fe497b4 100644
--- a/drivers/acpi/nvs.c
+++ b/drivers/acpi/nvs.c
@@ -13,7 +13,6 @@
 #include <linux/slab.h>
 #include <linux/acpi.h>
 #include <linux/acpi_io.h>
-#include <acpi/acpiosxf.h>
 
 /* ACPI NVS regions, APEI may use it */
 
diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c
index b25c64302cbc..05fd83ece62e 100644
--- a/drivers/hwmon/asus_atk0110.c
+++ b/drivers/hwmon/asus_atk0110.c
@@ -18,7 +18,6 @@
 #include <linux/err.h>
 
 #include <acpi/acpi.h>
-#include <acpi/acpixf.h>
 #include <acpi/acpi_drivers.h>
 #include <acpi/acpi_bus.h>
 
-- 
cgit 


From c42b4e6501cdaabee8cc292ae1ef0f66bf4825c1 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Mon, 25 Nov 2013 18:30:21 -0800
Subject: Revert "n_gsm: race between ld close and gsmtty open"

This reverts commit c284ee2cf12b55fa8496b2d098bf0938688f1c1c.  Turns out
the locking was incorrect.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Cc: Chao Bi <chao.bi@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/n_gsm.c | 37 ++++++++++---------------------------
 1 file changed, 10 insertions(+), 27 deletions(-)

diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
index 069bfd654485..c0f76da55304 100644
--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -2054,11 +2054,9 @@ void gsm_cleanup_mux(struct gsm_mux *gsm)
 					dlci->state == DLCI_CLOSED);
 	}
 	/* Free up any link layer users */
-	spin_lock(&gsm->lock);
 	for (i = 0; i < NUM_DLCI; i++)
 		if (gsm->dlci[i])
 			gsm_dlci_release(gsm->dlci[i]);
-	spin_unlock(&gsm->lock);
 	/* Now wipe the queues */
 	list_for_each_entry_safe(txq, ntxq, &gsm->tx_list, list)
 		kfree(txq);
@@ -2911,33 +2909,23 @@ static int gsmtty_install(struct tty_driver *driver, struct tty_struct *tty)
 	This is ok from a locking
 	perspective as we don't have to worry about this
 	if DLCI0 is lost */
-	spin_lock(&gsm->lock);
-	if (gsm->dlci[0] && gsm->dlci[0]->state != DLCI_OPEN) {
-		spin_unlock(&gsm->lock);
+	if (gsm->dlci[0] && gsm->dlci[0]->state != DLCI_OPEN)
 		return -EL2NSYNC;
-	}
 	dlci = gsm->dlci[line];
 	if (dlci == NULL) {
 		alloc = true;
 		dlci = gsm_dlci_alloc(gsm, line);
 	}
-	if (dlci == NULL) {
-		spin_unlock(&gsm->lock);
+	if (dlci == NULL)
 		return -ENOMEM;
-	}
 	ret = tty_port_install(&dlci->port, driver, tty);
 	if (ret) {
 		if (alloc)
 			dlci_put(dlci);
-		spin_unlock(&gsm->lock);
 		return ret;
 	}
 
-	dlci_get(dlci);
-	dlci_get(gsm->dlci[0]);
-	mux_get(gsm);
 	tty->driver_data = dlci;
-	spin_unlock(&gsm->lock);
 
 	return 0;
 }
@@ -2948,6 +2936,9 @@ static int gsmtty_open(struct tty_struct *tty, struct file *filp)
 	struct tty_port *port = &dlci->port;
 
 	port->count++;
+	dlci_get(dlci);
+	dlci_get(dlci->gsm->dlci[0]);
+	mux_get(dlci->gsm);
 	tty_port_tty_set(port, tty);
 
 	dlci->modem_rx = 0;
@@ -2974,7 +2965,7 @@ static void gsmtty_close(struct tty_struct *tty, struct file *filp)
 	mutex_unlock(&dlci->mutex);
 	gsm = dlci->gsm;
 	if (tty_port_close_start(&dlci->port, tty, filp) == 0)
-		return;
+		goto out;
 	gsm_dlci_begin_close(dlci);
 	if (test_bit(ASYNCB_INITIALIZED, &dlci->port.flags)) {
 		if (C_HUPCL(tty))
@@ -2982,7 +2973,10 @@ static void gsmtty_close(struct tty_struct *tty, struct file *filp)
 	}
 	tty_port_close_end(&dlci->port, tty);
 	tty_port_tty_set(&dlci->port, NULL);
-	return;
+out:
+	dlci_put(dlci);
+	dlci_put(gsm->dlci[0]);
+	mux_put(gsm);
 }
 
 static void gsmtty_hangup(struct tty_struct *tty)
@@ -3159,16 +3153,6 @@ static int gsmtty_break_ctl(struct tty_struct *tty, int state)
 	return gsmtty_modem_update(dlci, encode);
 }
 
-static void gsmtty_remove(struct tty_driver *driver, struct tty_struct *tty)
-{
-	struct gsm_dlci *dlci = tty->driver_data;
-	struct gsm_mux *gsm = dlci->gsm;
-
-	dlci_put(dlci);
-	dlci_put(gsm->dlci[0]);
-	mux_put(gsm);
-	driver->ttys[tty->index] = NULL;
-}
 
 /* Virtual ttys for the demux */
 static const struct tty_operations gsmtty_ops = {
@@ -3188,7 +3172,6 @@ static const struct tty_operations gsmtty_ops = {
 	.tiocmget		= gsmtty_tiocmget,
 	.tiocmset		= gsmtty_tiocmset,
 	.break_ctl		= gsmtty_break_ctl,
-	.remove			= gsmtty_remove,
 };
 
 
-- 
cgit 


From b975dc3689fc6a3718ad288ce080924f9cb7e176 Mon Sep 17 00:00:00 2001
From: Mattia Dongili <malattia@linux.it>
Date: Tue, 26 Nov 2013 07:43:50 +0900
Subject: sony-laptop: do not scribble keyboard backlight registers on resume

Follow-up to commit 294d31e8227c ("sony-laptop: don't change keyboard
backlight settings"): avoid messing up the state on resume.  Leave it to
what was before suspending as it's anyway likely that we still don't
know what value we should write to the EC registers.  This fix is also
required in 3.12

Cc: stable@vger.kernel.org
Tested-by: Karol Babioch <karol@babioch.de>
Signed-off-by: Mattia Dongili <malattia@linux.it>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/platform/x86/sony-laptop.c | 27 ---------------------------
 1 file changed, 27 deletions(-)

diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index c45c60f7ea2f..fb233ae7bb0e 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -140,7 +140,6 @@ MODULE_PARM_DESC(kbd_backlight_timeout,
 		 "on the model (default: no change from current value)");
 
 #ifdef CONFIG_PM_SLEEP
-static void sony_nc_kbd_backlight_resume(void);
 static void sony_nc_thermal_resume(void);
 #endif
 static int sony_nc_kbd_backlight_setup(struct platform_device *pd,
@@ -1487,13 +1486,6 @@ static void sony_nc_function_resume(void)
 		case 0x0135:
 			sony_nc_rfkill_update();
 			break;
-		case 0x0137:
-		case 0x0143:
-		case 0x014b:
-		case 0x014c:
-		case 0x0163:
-			sony_nc_kbd_backlight_resume();
-			break;
 		default:
 			continue;
 		}
@@ -1899,25 +1891,6 @@ static void sony_nc_kbd_backlight_cleanup(struct platform_device *pd,
 	}
 }
 
-#ifdef CONFIG_PM_SLEEP
-static void sony_nc_kbd_backlight_resume(void)
-{
-	int ignore = 0;
-
-	if (!kbdbl_ctl)
-		return;
-
-	if (kbdbl_ctl->mode == 0)
-		sony_call_snc_handle(kbdbl_ctl->handle, kbdbl_ctl->base,
-				&ignore);
-
-	if (kbdbl_ctl->timeout != 0)
-		sony_call_snc_handle(kbdbl_ctl->handle,
-				(kbdbl_ctl->base + 0x200) |
-				(kbdbl_ctl->timeout << 0x10), &ignore);
-}
-#endif
-
 struct battery_care_control {
 	struct device_attribute attrs[2];
 	unsigned int handle;
-- 
cgit 


From a31ab44ef5d07c6707df4a9ad2c8affd2d62ff4b Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@wwwdotorg.org>
Date: Mon, 25 Nov 2013 20:35:42 -0700
Subject: ARM: bcm2835: add missing #xxx-cells to I2C nodes

The I2C controller node needs #address-cells and #size-cells properties,
but these are currently missing. Add them. This allows child nodes to be
parsed correctly.

Cc: stable@vger.kernel.org
Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/boot/dts/bcm2835.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/bcm2835.dtsi b/arch/arm/boot/dts/bcm2835.dtsi
index 1e12aeff403b..aa537ed13f0a 100644
--- a/arch/arm/boot/dts/bcm2835.dtsi
+++ b/arch/arm/boot/dts/bcm2835.dtsi
@@ -85,6 +85,8 @@
 			reg = <0x7e205000 0x1000>;
 			interrupts = <2 21>;
 			clocks = <&clk_i2c>;
+			#address-cells = <1>;
+			#size-cells = <0>;
 			status = "disabled";
 		};
 
@@ -93,6 +95,8 @@
 			reg = <0x7e804000 0x1000>;
 			interrupts = <2 21>;
 			clocks = <&clk_i2c>;
+			#address-cells = <1>;
+			#size-cells = <0>;
 			status = "disabled";
 		};
 
-- 
cgit 


From c37dd677988ca50bc8bc60ab5ab053720583c168 Mon Sep 17 00:00:00 2001
From: Aaro Koskinen <aaro.koskinen@iki.fi>
Date: Mon, 11 Nov 2013 20:41:38 +0200
Subject: ARM: OMAPFB: panel-sony-acx565akm: fix bad unlock balance

When booting Nokia N900 smartphone with v3.12 + omap2plus_defconfig
(LOCKDEP enabled) and CONFIG_DISPLAY_PANEL_SONY_ACX565AKM enabled,
the following BUG is seen during the boot:

[    7.302154] =====================================
[    7.307128] [ BUG: bad unlock balance detected! ]
[    7.312103] 3.12.0-los.git-2093492-00120-g5e01dc7 #3 Not tainted
[    7.318450] -------------------------------------
[    7.323425] kworker/u2:1/12 is trying to release lock (&ddata->mutex) at:
[    7.330657] [<c031b760>] acx565akm_enable+0x12c/0x18c
[    7.335998] but there are no more locks to release!

Fix by removing double unlock and handling the locking completely inside
acx565akm_panel_power_on() when doing the power on.

Reported-by: Eduardo Valentin <eduardo.valentin@ti.com>
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: stable@vger.kernel.org
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/omap2/displays-new/panel-sony-acx565akm.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/video/omap2/displays-new/panel-sony-acx565akm.c b/drivers/video/omap2/displays-new/panel-sony-acx565akm.c
index e6d56f714ae4..d94f35dbd536 100644
--- a/drivers/video/omap2/displays-new/panel-sony-acx565akm.c
+++ b/drivers/video/omap2/displays-new/panel-sony-acx565akm.c
@@ -526,6 +526,8 @@ static int acx565akm_panel_power_on(struct omap_dss_device *dssdev)
 	struct omap_dss_device *in = ddata->in;
 	int r;
 
+	mutex_lock(&ddata->mutex);
+
 	dev_dbg(&ddata->spi->dev, "%s\n", __func__);
 
 	in->ops.sdi->set_timings(in, &ddata->videomode);
@@ -614,10 +616,7 @@ static int acx565akm_enable(struct omap_dss_device *dssdev)
 	if (omapdss_device_is_enabled(dssdev))
 		return 0;
 
-	mutex_lock(&ddata->mutex);
 	r = acx565akm_panel_power_on(dssdev);
-	mutex_unlock(&ddata->mutex);
-
 	if (r)
 		return r;
 
-- 
cgit 


From a238dcfa84bcd9d5d0ceba3fa66a335f233f8f1b Mon Sep 17 00:00:00 2001
From: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Date: Wed, 20 Nov 2013 20:23:44 +0200
Subject: i2c: davinci: raw read and write endian fix

I2C IP block expect LE data, but CPU may operate in BE mode.
Need to use endian neutral functions to read/write h/w registers.
I.e instead of __raw_read[lw] and __raw_write[lw] functions code
need to use read[lw]_relaxed and write[lw]_relaxed functions.
If the first simply reads/writes register, the second will byteswap
it if host operates in BE mode.

Changes are trivial sed like replacement of __raw_xxx functions
with xxx_relaxed variant.

Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-davinci.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/busses/i2c-davinci.c b/drivers/i2c/busses/i2c-davinci.c
index ff05d9fef4a8..af0b5830303d 100644
--- a/drivers/i2c/busses/i2c-davinci.c
+++ b/drivers/i2c/busses/i2c-davinci.c
@@ -125,12 +125,12 @@ static struct davinci_i2c_platform_data davinci_i2c_platform_data_default = {
 static inline void davinci_i2c_write_reg(struct davinci_i2c_dev *i2c_dev,
 					 int reg, u16 val)
 {
-	__raw_writew(val, i2c_dev->base + reg);
+	writew_relaxed(val, i2c_dev->base + reg);
 }
 
 static inline u16 davinci_i2c_read_reg(struct davinci_i2c_dev *i2c_dev, int reg)
 {
-	return __raw_readw(i2c_dev->base + reg);
+	return readw_relaxed(i2c_dev->base + reg);
 }
 
 /* Generate a pulse on the i2c clock pin. */
-- 
cgit 


From ba4c4d0a9021ab034554d532a98133d668b87599 Mon Sep 17 00:00:00 2001
From: Kailang Yang <kailang@realtek.com>
Date: Tue, 26 Nov 2013 15:17:50 +0800
Subject: ALSA: hda/realtek - Add support of ALC231 codec

It's compatible with ALC269.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 5e42059f10a1..60973fd6eb82 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -5175,6 +5175,7 @@ static int patch_alc680(struct hda_codec *codec)
  */
 static const struct hda_codec_preset snd_hda_preset_realtek[] = {
 	{ .id = 0x10ec0221, .name = "ALC221", .patch = patch_alc269 },
+	{ .id = 0x10ec0231, .name = "ALC231", .patch = patch_alc269 },
 	{ .id = 0x10ec0233, .name = "ALC233", .patch = patch_alc269 },
 	{ .id = 0x10ec0255, .name = "ALC255", .patch = patch_alc269 },
 	{ .id = 0x10ec0260, .name = "ALC260", .patch = patch_alc260 },
-- 
cgit 


From 9ad54547cf6f4410eba83bb95dfd2a0966718d6d Mon Sep 17 00:00:00 2001
From: Kailang Yang <kailang@realtek.com>
Date: Tue, 26 Nov 2013 15:41:40 +0800
Subject: ALSA: hda/realtek - Set pcbeep amp for ALC668

Set the missing pcbeep default amp for ALC668.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 60973fd6eb82..c4ad9d198068 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -5118,6 +5118,7 @@ static int patch_alc662(struct hda_codec *codec)
 		case 0x10ec0272:
 		case 0x10ec0663:
 		case 0x10ec0665:
+		case 0x10ec0668:
 			set_beep_amp(spec, 0x0b, 0x04, HDA_INPUT);
 			break;
 		case 0x10ec0273:
-- 
cgit 


From 873ce8ad502cce3ba9295890d52afcce385d4107 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 26 Nov 2013 11:58:40 +0100
Subject: ALSA: hda - Drop bus->avoid_link_reset flag

Use bus->power_keep_link_on instead.  The controller shouldn't go to
D3 when the link isn't reset, so essentially avoiding the link reset
means avoiding the runtime PM.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_codec.h      | 1 -
 sound/pci/hda/hda_intel.c      | 3 +--
 sound/pci/hda/patch_sigmatel.c | 3 ++-
 3 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h
index 77db69480c19..7aa9870040c1 100644
--- a/sound/pci/hda/hda_codec.h
+++ b/sound/pci/hda/hda_codec.h
@@ -698,7 +698,6 @@ struct hda_bus {
 	unsigned int in_reset:1;	/* during reset operation */
 	unsigned int power_keep_link_on:1; /* don't power off HDA link */
 	unsigned int no_response_fallback:1; /* don't fallback at RIRB error */
-	unsigned int avoid_link_reset:1; /* don't reset link at runtime PM */
 
 	int primary_dig_out_type;	/* primary digital out PCM type */
 };
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 7a09404579a7..c6d230193da6 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2994,8 +2994,7 @@ static int azx_runtime_suspend(struct device *dev)
 		  STATESTS_INT_MASK);
 
 	azx_stop_chip(chip);
-	if (!chip->bus->avoid_link_reset)
-		azx_enter_link_reset(chip);
+	azx_enter_link_reset(chip);
 	azx_clear_irq_pending(chip);
 	if (chip->driver_caps & AZX_DCAPS_I915_POWERWELL)
 		hda_display_power(false);
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index d2cc0041d9d3..088a5afbd1b9 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -2094,7 +2094,8 @@ static void stac92hd83xxx_fixup_hp_mic_led(struct hda_codec *codec,
 
 	if (action == HDA_FIXUP_ACT_PRE_PROBE) {
 		spec->mic_mute_led_gpio = 0x08; /* GPIO3 */
-		codec->bus->avoid_link_reset = 1;
+		/* resetting controller clears GPIO, so we need to keep on */
+		codec->bus->power_keep_link_on = 1;
 	}
 }
 
-- 
cgit 


From 55b3918b44c093948ccfcf89163d1d3e39c2f3f4 Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Thu, 21 Nov 2013 10:58:46 +0800
Subject: i2c: bcm-kona: remove duplicated include

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: Markus Mayer <markus.mayer@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-bcm-kona.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-bcm-kona.c b/drivers/i2c/busses/i2c-bcm-kona.c
index 036cf03aeb61..58e998ffb40b 100644
--- a/drivers/i2c/busses/i2c-bcm-kona.c
+++ b/drivers/i2c/busses/i2c-bcm-kona.c
@@ -20,7 +20,6 @@
 #include <linux/platform_device.h>
 #include <linux/clk.h>
 #include <linux/io.h>
-#include <linux/clk.h>
 #include <linux/slab.h>
 
 /* Hardware register offsets and field defintions */
-- 
cgit 


From 4e4844ccb13571cc58b25e2734f17e98a29256a5 Mon Sep 17 00:00:00 2001
From: Martin Vogt <mvogt1@gmail.com>
Date: Sun, 24 Nov 2013 15:57:23 +0100
Subject: i2c: i2c-diolan-u2c: different usb endpoints for DLN-2-U2C

The previous diolan adapter uses other out/in endpoints than
the current DLN-2-U2C in compatibility mode.
They changed from 0x2/0x84 to 0x3/0x83.
This patch gets the endpoints from the usb interface, instead
of hardcode them in the driver.

This was tested on a current DLN-2-U2C board.

Signed-off-by: Martin Vogt <mvogt1@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-diolan-u2c.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/i2c/busses/i2c-diolan-u2c.c b/drivers/i2c/busses/i2c-diolan-u2c.c
index dae3ddfe7619..721f7ebf9a3b 100644
--- a/drivers/i2c/busses/i2c-diolan-u2c.c
+++ b/drivers/i2c/busses/i2c-diolan-u2c.c
@@ -25,8 +25,6 @@
 #define USB_VENDOR_ID_DIOLAN		0x0abf
 #define USB_DEVICE_ID_DIOLAN_U2C	0x3370
 
-#define DIOLAN_OUT_EP		0x02
-#define DIOLAN_IN_EP		0x84
 
 /* commands via USB, must match command ids in the firmware */
 #define CMD_I2C_READ		0x01
@@ -84,6 +82,7 @@
 struct i2c_diolan_u2c {
 	u8 obuffer[DIOLAN_OUTBUF_LEN];	/* output buffer */
 	u8 ibuffer[DIOLAN_INBUF_LEN];	/* input buffer */
+	int ep_in, ep_out;              /* Endpoints    */
 	struct usb_device *usb_dev;	/* the usb device for this device */
 	struct usb_interface *interface;/* the interface for this device */
 	struct i2c_adapter adapter;	/* i2c related things */
@@ -109,7 +108,7 @@ static int diolan_usb_transfer(struct i2c_diolan_u2c *dev)
 		return -EINVAL;
 
 	ret = usb_bulk_msg(dev->usb_dev,
-			   usb_sndbulkpipe(dev->usb_dev, DIOLAN_OUT_EP),
+			   usb_sndbulkpipe(dev->usb_dev, dev->ep_out),
 			   dev->obuffer, dev->olen, &actual,
 			   DIOLAN_USB_TIMEOUT);
 	if (!ret) {
@@ -118,7 +117,7 @@ static int diolan_usb_transfer(struct i2c_diolan_u2c *dev)
 
 			tmpret = usb_bulk_msg(dev->usb_dev,
 					      usb_rcvbulkpipe(dev->usb_dev,
-							      DIOLAN_IN_EP),
+							      dev->ep_in),
 					      dev->ibuffer,
 					      sizeof(dev->ibuffer), &actual,
 					      DIOLAN_USB_TIMEOUT);
@@ -210,7 +209,7 @@ static void diolan_flush_input(struct i2c_diolan_u2c *dev)
 		int ret;
 
 		ret = usb_bulk_msg(dev->usb_dev,
-				   usb_rcvbulkpipe(dev->usb_dev, DIOLAN_IN_EP),
+				   usb_rcvbulkpipe(dev->usb_dev, dev->ep_in),
 				   dev->ibuffer, sizeof(dev->ibuffer), &actual,
 				   DIOLAN_USB_TIMEOUT);
 		if (ret < 0 || actual == 0)
@@ -445,9 +444,14 @@ static void diolan_u2c_free(struct i2c_diolan_u2c *dev)
 static int diolan_u2c_probe(struct usb_interface *interface,
 			    const struct usb_device_id *id)
 {
+	struct usb_host_interface *hostif = interface->cur_altsetting;
 	struct i2c_diolan_u2c *dev;
 	int ret;
 
+	if (hostif->desc.bInterfaceNumber != 0
+	    || hostif->desc.bNumEndpoints < 2)
+		return -ENODEV;
+
 	/* allocate memory for our device state and initialize it */
 	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
 	if (dev == NULL) {
@@ -455,6 +459,8 @@ static int diolan_u2c_probe(struct usb_interface *interface,
 		ret = -ENOMEM;
 		goto error;
 	}
+	dev->ep_out = hostif->endpoint[0].desc.bEndpointAddress;
+	dev->ep_in = hostif->endpoint[1].desc.bEndpointAddress;
 
 	dev->usb_dev = usb_get_dev(interface_to_usbdev(interface));
 	dev->interface = interface;
-- 
cgit 


From 6c5dc7f8afbd2f480ebe9ff6919c6420fcf1abd6 Mon Sep 17 00:00:00 2001
From: Michael Neuling <mikey@neuling.org>
Date: Mon, 18 Nov 2013 15:20:01 +1100
Subject: crypto: caam - Add missing Job Ring include

linuxnext currently doesn't compile with the powerpc mpc85xx_defconfig
giving:

  drivers/crypto/caam/jr.c: In function 'caam_jr_probe':
  drivers/crypto/caam/jr.c:468:2: error: implicit declaration of function 'of_iomap' [-Werror=implicit-function-declaration]

In:
  commit 313ea293e9c4d1eabcaddd2c0800f083b03c2a2e
  Author: Ruchika Gupta <ruchika.gupta@freescale.com>
  crypto: caam - Add Platform driver for Job Ring

We added a reference to of_iomap but did add the necessary include file.

The below adds this include.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Acked-by: Ruchika Gupta <ruchika.gupta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/caam/jr.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/crypto/caam/jr.c b/drivers/crypto/caam/jr.c
index d23356d20e1c..1d80bd3636c5 100644
--- a/drivers/crypto/caam/jr.c
+++ b/drivers/crypto/caam/jr.c
@@ -6,6 +6,7 @@
  */
 
 #include <linux/of_irq.h>
+#include <linux/of_address.h>
 
 #include "compat.h"
 #include "regs.h"
-- 
cgit 


From c2a3a6198e56a4ddf7cab9a0f98d1ec964292c82 Mon Sep 17 00:00:00 2001
From: Tim Kryger <tim.kryger@linaro.org>
Date: Mon, 25 Nov 2013 12:01:18 -0800
Subject: i2c: i2c-bcm-kona: Fix module build

Correct a typo that prevented the driver from being built as a module.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Tim Kryger <tim.kryger@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-bcm-kona.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i2c/busses/i2c-bcm-kona.c b/drivers/i2c/busses/i2c-bcm-kona.c
index 58e998ffb40b..18a74a6751a9 100644
--- a/drivers/i2c/busses/i2c-bcm-kona.c
+++ b/drivers/i2c/busses/i2c-bcm-kona.c
@@ -890,7 +890,7 @@ static const struct of_device_id bcm_kona_i2c_of_match[] = {
 	{.compatible = "brcm,kona-i2c",},
 	{},
 };
-MODULE_DEVICE_TABLE(of, kona_i2c_of_match);
+MODULE_DEVICE_TABLE(of, bcm_kona_i2c_of_match);
 
 static struct platform_driver bcm_kona_i2c_driver = {
 	.driver = {
-- 
cgit 


From 1a3e5173f5e72cbf7f0c8927b33082e361c16d72 Mon Sep 17 00:00:00 2001
From: Marc Kleine-Budde <mkl@pengutronix.de>
Date: Mon, 25 Nov 2013 22:15:20 +0100
Subject: can: flexcan: use correct clock as base for bit rate calculation

The flexcan IP core uses the peripheral clock ("per") as basic clock for the
bit timing calculation. However the driver uses the the wrong clock ("ipg").
This leads to wrong bit rates if the rates on both clock are different.

This patch fixes the problem by using the correct clock for the bit rate
calculation.

Cc: linux-stable <stable@vger.kernel.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
---
 drivers/net/can/flexcan.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index ae08cf129ebb..aaed97bee471 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -1020,13 +1020,13 @@ static int flexcan_probe(struct platform_device *pdev)
 			dev_err(&pdev->dev, "no ipg clock defined\n");
 			return PTR_ERR(clk_ipg);
 		}
-		clock_freq = clk_get_rate(clk_ipg);
 
 		clk_per = devm_clk_get(&pdev->dev, "per");
 		if (IS_ERR(clk_per)) {
 			dev_err(&pdev->dev, "no per clock defined\n");
 			return PTR_ERR(clk_per);
 		}
+		clock_freq = clk_get_rate(clk_per);
 	}
 
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-- 
cgit 


From 2ab68ec927310dc488f3403bb48f9e4ad00a9491 Mon Sep 17 00:00:00 2001
From: Sasha Levin <sasha.levin@oracle.com>
Date: Tue, 19 Nov 2013 14:25:36 -0500
Subject: video: kyro: fix incorrect sizes when copying to userspace

kyro would copy u32s and specify sizeof(unsigned long) as the size to copy.

This would copy more data than intended and cause memory corruption and might
leak kernel memory.

Signed-off-by: Sasha Levin <sasha.levin@oracle.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/kyro/fbdev.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/video/kyro/fbdev.c b/drivers/video/kyro/fbdev.c
index 50c857477e4f..65041e15fd59 100644
--- a/drivers/video/kyro/fbdev.c
+++ b/drivers/video/kyro/fbdev.c
@@ -624,15 +624,15 @@ static int kyrofb_ioctl(struct fb_info *info,
 			return -EINVAL;
 		}
 	case KYRO_IOCTL_UVSTRIDE:
-		if (copy_to_user(argp, &deviceInfo.ulOverlayUVStride, sizeof(unsigned long)))
+		if (copy_to_user(argp, &deviceInfo.ulOverlayUVStride, sizeof(deviceInfo.ulOverlayUVStride)))
 			return -EFAULT;
 		break;
 	case KYRO_IOCTL_STRIDE:
-		if (copy_to_user(argp, &deviceInfo.ulOverlayStride, sizeof(unsigned long)))
+		if (copy_to_user(argp, &deviceInfo.ulOverlayStride, sizeof(deviceInfo.ulOverlayStride)))
 			return -EFAULT;
 		break;
 	case KYRO_IOCTL_OVERLAY_OFFSET:
-		if (copy_to_user(argp, &deviceInfo.ulOverlayOffset, sizeof(unsigned long)))
+		if (copy_to_user(argp, &deviceInfo.ulOverlayOffset, sizeof(deviceInfo.ulOverlayOffset)))
 			return -EFAULT;
 		break;
 	}
-- 
cgit 


From 974dbcfcca1ee88279e274051e1719b4980ebdb3 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Wed, 6 Nov 2013 09:57:27 +0100
Subject: fbdev: sh_mobile_meram: Fix defined but not used compiler warnings
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

If both CONFIG_PM_SLEEP and CONFIG_PM_RUNTIME are not set:

drivers/video/sh_mobile_meram.c:573: warning: ‘sh_mobile_meram_suspend’ defined but not used
drivers/video/sh_mobile_meram.c:597: warning: ‘sh_mobile_meram_resume’ defined but not used

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/sh_mobile_meram.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/video/sh_mobile_meram.c b/drivers/video/sh_mobile_meram.c
index e0f098562a74..a297de5cc859 100644
--- a/drivers/video/sh_mobile_meram.c
+++ b/drivers/video/sh_mobile_meram.c
@@ -569,6 +569,7 @@ EXPORT_SYMBOL_GPL(sh_mobile_meram_cache_update);
  * Power management
  */
 
+#if defined(CONFIG_PM_SLEEP) || defined(CONFIG_PM_RUNTIME)
 static int sh_mobile_meram_suspend(struct device *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev);
@@ -611,6 +612,7 @@ static int sh_mobile_meram_resume(struct device *dev)
 		meram_write_reg(priv->base, common_regs[i], priv->regs[i]);
 	return 0;
 }
+#endif /* CONFIG_PM_SLEEP || CONFIG_PM_RUNTIME */
 
 static UNIVERSAL_DEV_PM_OPS(sh_mobile_meram_dev_pm_ops,
 			    sh_mobile_meram_suspend,
-- 
cgit 


From 4e58e54754dc1fec21c3a9e824bc108b05fdf46e Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Tue, 26 Nov 2013 09:22:54 -0500
Subject: tracing: Allow events to have NULL strings

If an TRACE_EVENT() uses __assign_str() or __get_str on a NULL pointer
then the following oops will happen:

BUG: unable to handle kernel NULL pointer dereference at   (null)
IP: [<c127a17b>] strlen+0x10/0x1a
*pde = 00000000 ^M
Oops: 0000 [#1] PREEMPT SMP
Modules linked in:
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.13.0-rc1-test+ #2
Hardware name:                  /DG965MQ, BIOS MQ96510J.86A.0372.2006.0605.1717 06/05/2006^M
task: f5cde9f0 ti: f5e5e000 task.ti: f5e5e000
EIP: 0060:[<c127a17b>] EFLAGS: 00210046 CPU: 1
EIP is at strlen+0x10/0x1a
EAX: 00000000 EBX: c2472da8 ECX: ffffffff EDX: c2472da8
ESI: c1c5e5fc EDI: 00000000 EBP: f5e5fe84 ESP: f5e5fe80
 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
CR0: 8005003b CR2: 00000000 CR3: 01f32000 CR4: 000007d0
Stack:
 f5f18b90 f5e5feb8 c10687a8 0759004f 00000005 00000005 00000005 00200046
 00000002 00000000 c1082a93 f56c7e28 c2472da8 c1082a93 f5e5fee4 c106bc61^M
 00000000 c1082a93 00000000 00000000 00000001 00200046 00200082 00000000
Call Trace:
 [<c10687a8>] ftrace_raw_event_lock+0x39/0xc0
 [<c1082a93>] ? ktime_get+0x29/0x69
 [<c1082a93>] ? ktime_get+0x29/0x69
 [<c106bc61>] lock_release+0x57/0x1a5
 [<c1082a93>] ? ktime_get+0x29/0x69
 [<c10824dd>] read_seqcount_begin.constprop.7+0x4d/0x75
 [<c1082a93>] ? ktime_get+0x29/0x69^M
 [<c1082a93>] ktime_get+0x29/0x69
 [<c108a46a>] __tick_nohz_idle_enter+0x1e/0x426
 [<c10690e8>] ? lock_release_holdtime.part.19+0x48/0x4d
 [<c10bc184>] ? time_hardirqs_off+0xe/0x28
 [<c1068c82>] ? trace_hardirqs_off_caller+0x3f/0xaf
 [<c108a8cb>] tick_nohz_idle_enter+0x59/0x62
 [<c1079242>] cpu_startup_entry+0x64/0x192
 [<c102299c>] start_secondary+0x277/0x27c
Code: 90 89 c6 89 d0 88 c4 ac 38 e0 74 09 84 c0 75 f7 be 01 00 00 00 89 f0 48 5e 5d c3 55 89 e5 57 66 66 66 66 90 83 c9 ff 89 c7 31 c0 <f2> ae f7 d1 8d 41 ff 5f 5d c3 55 89 e5 57 66 66 66 66 90 31 ff
EIP: [<c127a17b>] strlen+0x10/0x1a SS:ESP 0068:f5e5fe80
CR2: 0000000000000000
---[ end trace 01bc47bf519ec1b2 ]---

New tracepoints have been added that have allowed for NULL pointers
being assigned to strings. To fix this, change the TRACE_EVENT() code
to check for NULL and if it is, it will assign "(null)" to it instead
(similar to what glibc printf does).

Reported-by: Shuah Khan <shuah.kh@samsung.com>
Reported-by: Jovi Zhangwei <jovi.zhangwei@gmail.com>
Link: http://lkml.kernel.org/r/CAGdX0WFeEuy+DtpsJzyzn0343qEEjLX97+o1VREFkUEhndC+5Q@mail.gmail.com
Link: http://lkml.kernel.org/r/528D6972.9010702@samsung.com
Fixes: 9cbf117662e2 ("tracing/events: provide string with undefined size support")
Cc: stable@vger.kernel.org # 2.6.31+
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 include/trace/ftrace.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index 52594b20179e..d17a35c6537e 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -372,7 +372,8 @@ ftrace_define_fields_##call(struct ftrace_event_call *event_call)	\
 	__data_size += (len) * sizeof(type);
 
 #undef __string
-#define __string(item, src) __dynamic_array(char, item, strlen(src) + 1)
+#define __string(item, src) __dynamic_array(char, item,			\
+		    strlen((src) ? (const char *)(src) : "(null)") + 1)
 
 #undef DECLARE_EVENT_CLASS
 #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print)	\
@@ -501,7 +502,7 @@ static inline notrace int ftrace_get_offsets_##call(			\
 
 #undef __assign_str
 #define __assign_str(dst, src)						\
-	strcpy(__get_str(dst), src);
+	strcpy(__get_str(dst), (src) ? (const char *)(src) : "(null)");
 
 #undef TP_fast_assign
 #define TP_fast_assign(args...) args
-- 
cgit 


From 8a56d7761d2d041ae5e8215d20b4167d8aa93f51 Mon Sep 17 00:00:00 2001
From: "Steven Rostedt (Red Hat)" <rostedt@goodmis.org>
Date: Mon, 25 Nov 2013 20:59:46 -0500
Subject: ftrace: Fix function graph with loading of modules

Commit 8c4f3c3fa9681 "ftrace: Check module functions being traced on reload"
fixed module loading and unloading with respect to function tracing, but
it missed the function graph tracer. If you perform the following

 # cd /sys/kernel/debug/tracing
 # echo function_graph > current_tracer
 # modprobe nfsd
 # echo nop > current_tracer

You'll get the following oops message:

 ------------[ cut here ]------------
 WARNING: CPU: 2 PID: 2910 at /linux.git/kernel/trace/ftrace.c:1640 __ftrace_hash_rec_update.part.35+0x168/0x1b9()
 Modules linked in: nfsd exportfs nfs_acl lockd ipt_MASQUERADE sunrpc ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables uinput snd_hda_codec_idt
 CPU: 2 PID: 2910 Comm: bash Not tainted 3.13.0-rc1-test #7
 Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./To be filled by O.E.M., BIOS SDBLI944.86P 05/08/2007
  0000000000000668 ffff8800787efcf8 ffffffff814fe193 ffff88007d500000
  0000000000000000 ffff8800787efd38 ffffffff8103b80a 0000000000000668
  ffffffff810b2b9a ffffffff81a48370 0000000000000001 ffff880037aea000
 Call Trace:
  [<ffffffff814fe193>] dump_stack+0x4f/0x7c
  [<ffffffff8103b80a>] warn_slowpath_common+0x81/0x9b
  [<ffffffff810b2b9a>] ? __ftrace_hash_rec_update.part.35+0x168/0x1b9
  [<ffffffff8103b83e>] warn_slowpath_null+0x1a/0x1c
  [<ffffffff810b2b9a>] __ftrace_hash_rec_update.part.35+0x168/0x1b9
  [<ffffffff81502f89>] ? __mutex_lock_slowpath+0x364/0x364
  [<ffffffff810b2cc2>] ftrace_shutdown+0xd7/0x12b
  [<ffffffff810b47f0>] unregister_ftrace_graph+0x49/0x78
  [<ffffffff810c4b30>] graph_trace_reset+0xe/0x10
  [<ffffffff810bf393>] tracing_set_tracer+0xa7/0x26a
  [<ffffffff810bf5e1>] tracing_set_trace_write+0x8b/0xbd
  [<ffffffff810c501c>] ? ftrace_return_to_handler+0xb2/0xde
  [<ffffffff811240a8>] ? __sb_end_write+0x5e/0x5e
  [<ffffffff81122aed>] vfs_write+0xab/0xf6
  [<ffffffff8150a185>] ftrace_graph_caller+0x85/0x85
  [<ffffffff81122dbd>] SyS_write+0x59/0x82
  [<ffffffff8150a185>] ftrace_graph_caller+0x85/0x85
  [<ffffffff8150a2d2>] system_call_fastpath+0x16/0x1b
 ---[ end trace 940358030751eafb ]---

The above mentioned commit didn't go far enough. Well, it covered the
function tracer by adding checks in __register_ftrace_function(). The
problem is that the function graph tracer circumvents that (for a slight
efficiency gain when function graph trace is running with a function
tracer. The gain was not worth this).

The problem came with ftrace_startup() which should always be called after
__register_ftrace_function(), if you want this bug to be completely fixed.

Anyway, this solution moves __register_ftrace_function() inside of
ftrace_startup() and removes the need to call them both.

Reported-by: Dave Wysochanski <dwysocha@redhat.com>
Fixes: ed926f9b35cd ("ftrace: Use counters to enable functions to trace")
Cc: stable@vger.kernel.org # 3.0+
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/ftrace.c | 64 ++++++++++++++++++++++++++++-----------------------
 1 file changed, 35 insertions(+), 29 deletions(-)

diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 22fa55696760..0e9f9eaade2f 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -367,9 +367,6 @@ static int remove_ftrace_list_ops(struct ftrace_ops **list,
 
 static int __register_ftrace_function(struct ftrace_ops *ops)
 {
-	if (unlikely(ftrace_disabled))
-		return -ENODEV;
-
 	if (FTRACE_WARN_ON(ops == &global_ops))
 		return -EINVAL;
 
@@ -428,9 +425,6 @@ static int __unregister_ftrace_function(struct ftrace_ops *ops)
 {
 	int ret;
 
-	if (ftrace_disabled)
-		return -ENODEV;
-
 	if (WARN_ON(!(ops->flags & FTRACE_OPS_FL_ENABLED)))
 		return -EBUSY;
 
@@ -2088,10 +2082,15 @@ static void ftrace_startup_enable(int command)
 static int ftrace_startup(struct ftrace_ops *ops, int command)
 {
 	bool hash_enable = true;
+	int ret;
 
 	if (unlikely(ftrace_disabled))
 		return -ENODEV;
 
+	ret = __register_ftrace_function(ops);
+	if (ret)
+		return ret;
+
 	ftrace_start_up++;
 	command |= FTRACE_UPDATE_CALLS;
 
@@ -2113,12 +2112,17 @@ static int ftrace_startup(struct ftrace_ops *ops, int command)
 	return 0;
 }
 
-static void ftrace_shutdown(struct ftrace_ops *ops, int command)
+static int ftrace_shutdown(struct ftrace_ops *ops, int command)
 {
 	bool hash_disable = true;
+	int ret;
 
 	if (unlikely(ftrace_disabled))
-		return;
+		return -ENODEV;
+
+	ret = __unregister_ftrace_function(ops);
+	if (ret)
+		return ret;
 
 	ftrace_start_up--;
 	/*
@@ -2153,9 +2157,10 @@ static void ftrace_shutdown(struct ftrace_ops *ops, int command)
 	}
 
 	if (!command || !ftrace_enabled)
-		return;
+		return 0;
 
 	ftrace_run_update_code(command);
+	return 0;
 }
 
 static void ftrace_startup_sysctl(void)
@@ -3060,16 +3065,13 @@ static void __enable_ftrace_function_probe(void)
 	if (i == FTRACE_FUNC_HASHSIZE)
 		return;
 
-	ret = __register_ftrace_function(&trace_probe_ops);
-	if (!ret)
-		ret = ftrace_startup(&trace_probe_ops, 0);
+	ret = ftrace_startup(&trace_probe_ops, 0);
 
 	ftrace_probe_registered = 1;
 }
 
 static void __disable_ftrace_function_probe(void)
 {
-	int ret;
 	int i;
 
 	if (!ftrace_probe_registered)
@@ -3082,9 +3084,7 @@ static void __disable_ftrace_function_probe(void)
 	}
 
 	/* no more funcs left */
-	ret = __unregister_ftrace_function(&trace_probe_ops);
-	if (!ret)
-		ftrace_shutdown(&trace_probe_ops, 0);
+	ftrace_shutdown(&trace_probe_ops, 0);
 
 	ftrace_probe_registered = 0;
 }
@@ -4366,12 +4366,15 @@ core_initcall(ftrace_nodyn_init);
 static inline int ftrace_init_dyn_debugfs(struct dentry *d_tracer) { return 0; }
 static inline void ftrace_startup_enable(int command) { }
 /* Keep as macros so we do not need to define the commands */
-# define ftrace_startup(ops, command)			\
-	({						\
-		(ops)->flags |= FTRACE_OPS_FL_ENABLED;	\
-		0;					\
+# define ftrace_startup(ops, command)					\
+	({								\
+		int ___ret = __register_ftrace_function(ops);		\
+		if (!___ret)						\
+			(ops)->flags |= FTRACE_OPS_FL_ENABLED;		\
+		___ret;							\
 	})
-# define ftrace_shutdown(ops, command)	do { } while (0)
+# define ftrace_shutdown(ops, command) __unregister_ftrace_function(ops)
+
 # define ftrace_startup_sysctl()	do { } while (0)
 # define ftrace_shutdown_sysctl()	do { } while (0)
 
@@ -4780,9 +4783,7 @@ int register_ftrace_function(struct ftrace_ops *ops)
 
 	mutex_lock(&ftrace_lock);
 
-	ret = __register_ftrace_function(ops);
-	if (!ret)
-		ret = ftrace_startup(ops, 0);
+	ret = ftrace_startup(ops, 0);
 
 	mutex_unlock(&ftrace_lock);
 
@@ -4801,9 +4802,7 @@ int unregister_ftrace_function(struct ftrace_ops *ops)
 	int ret;
 
 	mutex_lock(&ftrace_lock);
-	ret = __unregister_ftrace_function(ops);
-	if (!ret)
-		ftrace_shutdown(ops, 0);
+	ret = ftrace_shutdown(ops, 0);
 	mutex_unlock(&ftrace_lock);
 
 	return ret;
@@ -4997,6 +4996,13 @@ ftrace_suspend_notifier_call(struct notifier_block *bl, unsigned long state,
 	return NOTIFY_DONE;
 }
 
+/* Just a place holder for function graph */
+static struct ftrace_ops fgraph_ops __read_mostly = {
+	.func		= ftrace_stub,
+	.flags		= FTRACE_OPS_FL_STUB | FTRACE_OPS_FL_GLOBAL |
+				FTRACE_OPS_FL_RECURSION_SAFE,
+};
+
 int register_ftrace_graph(trace_func_graph_ret_t retfunc,
 			trace_func_graph_ent_t entryfunc)
 {
@@ -5023,7 +5029,7 @@ int register_ftrace_graph(trace_func_graph_ret_t retfunc,
 	ftrace_graph_return = retfunc;
 	ftrace_graph_entry = entryfunc;
 
-	ret = ftrace_startup(&global_ops, FTRACE_START_FUNC_RET);
+	ret = ftrace_startup(&fgraph_ops, FTRACE_START_FUNC_RET);
 
 out:
 	mutex_unlock(&ftrace_lock);
@@ -5040,7 +5046,7 @@ void unregister_ftrace_graph(void)
 	ftrace_graph_active--;
 	ftrace_graph_return = (trace_func_graph_ret_t)ftrace_stub;
 	ftrace_graph_entry = ftrace_graph_entry_stub;
-	ftrace_shutdown(&global_ops, FTRACE_STOP_FUNC_RET);
+	ftrace_shutdown(&fgraph_ops, FTRACE_STOP_FUNC_RET);
 	unregister_pm_notifier(&ftrace_suspend_notifier);
 	unregister_trace_sched_switch(ftrace_graph_probe_sched_switch, NULL);
 
-- 
cgit 


From 427bfe07e6744c058ce6fc4aa187cda96b635539 Mon Sep 17 00:00:00 2001
From: Tim Gardner <tim.gardner@canonical.com>
Date: Thu, 14 Nov 2013 14:29:52 -0700
Subject: xen-blkfront: Silence pfn maybe-uninitialized warning
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

pfn cannot actually be used unless (!info->feature_persistent), nor is
pfn accessed in get_grant() unless (!info->feature_persistent), but silence
this warning anyway. gcc-4.8

drivers/block/xen-blkfront.c: In function 'do_blkif_request':
drivers/block/xen-blkfront.c:508:20: warning: 'pfn' may be used uninitialized in this function [-Wmaybe-uninitialized]
     gnt_list_entry = get_grant(&gref_head, pfn, info);
                    ^
drivers/block/xen-blkfront.c:492:19: note: 'pfn' was declared here
     unsigned long pfn;

Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Roger Pau Monné <roger.pau@citrix.com>
---
 drivers/block/xen-blkfront.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 432db1b59b00..5f926de61950 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -489,7 +489,7 @@ static int blkif_queue_request(struct request *req)
 
 			if ((ring_req->operation == BLKIF_OP_INDIRECT) &&
 			    (i % SEGS_PER_INDIRECT_FRAME == 0)) {
-				unsigned long pfn;
+				unsigned long uninitialized_var(pfn);
 
 				if (segments)
 					kunmap_atomic(segments);
-- 
cgit 


From 2f089cb89d2f47702c31bd584c12badc88bbe17c Mon Sep 17 00:00:00 2001
From: Felipe Pena <felipensp@gmail.com>
Date: Sat, 9 Nov 2013 13:36:09 -0200
Subject: block: xen-blkfront: Fix possible NULL ptr dereference

In the blkif_release function the bdget_disk() call might returns
a NULL ptr which might be dereferenced on bdev->bd_openers checking

Signed-off-by: Felipe Pena <felipensp@gmail.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
[v2: Added WARN per Roger's suggestion]
---
 drivers/block/xen-blkfront.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 5f926de61950..c4a4c9006288 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -2011,6 +2011,10 @@ static void blkif_release(struct gendisk *disk, fmode_t mode)
 
 	bdev = bdget_disk(disk, 0);
 
+	if (!bdev) {
+		WARN(1, "Block device %s yanked out from us!\n", disk->disk_name);
+		goto out_mutex;
+	}
 	if (bdev->bd_openers)
 		goto out;
 
@@ -2041,6 +2045,7 @@ static void blkif_release(struct gendisk *disk, fmode_t mode)
 
 out:
 	bdput(bdev);
+out_mutex:
 	mutex_unlock(&blkfront_mutex);
 }
 
-- 
cgit 


From c297c8b99b07f496ff69a719cfb8e8fe852832ed Mon Sep 17 00:00:00 2001
From: Andy Adamson <andros@netapp.com>
Date: Wed, 20 Nov 2013 13:00:17 -0500
Subject: SUNRPC: do not fail gss proc NULL calls with EACCES

Otherwise RPCSEC_GSS_DESTROY messages are not sent.

Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 net/sunrpc/auth_gss/auth_gss.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 97912b40c254..42fdfc634e56 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -1517,7 +1517,7 @@ out:
 static int
 gss_refresh_null(struct rpc_task *task)
 {
-	return -EACCES;
+	return 0;
 }
 
 static __be32 *
-- 
cgit 


From 14883a75ec76b44759385fb12629f4a0f1aef4e3 Mon Sep 17 00:00:00 2001
From: Matt Wilson <msw@amazon.com>
Date: Wed, 20 Nov 2013 12:11:35 -0800
Subject: xen/gnttab: leave lazy MMU mode in the case of a m2p override failure

Commit f62805f1 introduced a bug where lazy MMU mode isn't exited if a
m2p_add/remove_override call fails.

Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Anthony Liguori <aliguori@amazon.com>
Cc: xen-devel@lists.xenproject.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Matt Wilson <msw@amazon.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
CC: stable@vger.kernel.org
---
 drivers/xen/grant-table.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index 62ccf5424ba8..028387192b60 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -930,9 +930,10 @@ int gnttab_map_refs(struct gnttab_map_grant_ref *map_ops,
 		ret = m2p_add_override(mfn, pages[i], kmap_ops ?
 				       &kmap_ops[i] : NULL);
 		if (ret)
-			return ret;
+			goto out;
 	}
 
+ out:
 	if (lazy)
 		arch_leave_lazy_mmu_mode();
 
@@ -969,9 +970,10 @@ int gnttab_unmap_refs(struct gnttab_unmap_grant_ref *unmap_ops,
 		ret = m2p_remove_override(pages[i], kmap_ops ?
 				       &kmap_ops[i] : NULL);
 		if (ret)
-			return ret;
+			goto out;
 	}
 
+ out:
 	if (lazy)
 		arch_leave_lazy_mmu_mode();
 
-- 
cgit 


From a09b5add6f2458486df42a4431a0599f18fa8f52 Mon Sep 17 00:00:00 2001
From: Andi Shyti <andi@etezian.org>
Date: Thu, 18 Jul 2013 21:35:30 +0200
Subject: u8500_defconfig: allow creation and mounting of devtmpfs

This patch enables CONFIG_DETTMPFS and CONFIG_DEVTMPFS_MOUNT
flags for u8500 based devices.

In this way it's possible to create a tmpfs/ramfs already in the
early stages of the boot, allowing programs like udev/mdev to
populate the /dev directory.

Signed-off-by: Andi Shyti <andi@etezian.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/configs/u8500_defconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/configs/u8500_defconfig b/arch/arm/configs/u8500_defconfig
index ac632cc38f24..3738cd695132 100644
--- a/arch/arm/configs/u8500_defconfig
+++ b/arch/arm/configs/u8500_defconfig
@@ -109,6 +109,8 @@ CONFIG_EXT2_FS_SECURITY=y
 CONFIG_EXT3_FS=y
 CONFIG_EXT4_FS=y
 CONFIG_VFAT_FS=y
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
 CONFIG_TMPFS=y
 CONFIG_TMPFS_POSIX_ACL=y
 # CONFIG_MISC_FILESYSTEMS is not set
-- 
cgit 


From 59b023e9bf62933f7078dec339b110d5785f63f6 Mon Sep 17 00:00:00 2001
From: Daniel Lezcano <daniel.lezcano@linaro.org>
Date: Mon, 30 Sep 2013 13:36:36 +0200
Subject: ARM: ux500: u8500_defconfig: add missing cpuidle option

With the commit d3f2950f2adeea3da0317e952914b59adaa4cdb3, the option
ARM_U8500_CPUIDLE was added to the Kconfig but not reflected in the
default config file, hence the cpuidle driver is no longer enabled
since this commit.

Enable it again by adding the missing option in the default config file.

Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/configs/u8500_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/u8500_defconfig b/arch/arm/configs/u8500_defconfig
index 3738cd695132..c6ebc184bf68 100644
--- a/arch/arm/configs/u8500_defconfig
+++ b/arch/arm/configs/u8500_defconfig
@@ -22,6 +22,7 @@ CONFIG_CMDLINE="root=/dev/ram0 console=ttyAMA2,115200n8"
 CONFIG_CPU_FREQ=y
 CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND=y
 CONFIG_CPU_IDLE=y
+CONFIG_ARM_U8500_CPUIDLE=y
 CONFIG_VFP=y
 CONFIG_NEON=y
 CONFIG_PM_RUNTIME=y
-- 
cgit 


From 1f202dea74713589f2af29f1dba3ac6de043618a Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Wed, 13 Nov 2013 09:28:53 +0100
Subject: Revert "ARM: ux500: Remove AUXDATA relating to SDI (MMC) clock-name
 bindings"

This reverts commit ce16feb8510cbbcd090c2320c35db2fbbffde210.

This commit stopped tying down the name of the MMC/SD devices, but these
names are used in the pin control table, so the MMC/SD cards stopped
working.

Cc: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/cpu-db8500.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 2e85c1e72535..8e7e60d2a429 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -140,6 +140,10 @@ static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
 	/* Requires call-back bindings. */
 	OF_DEV_AUXDATA("arm,cortex-a9-pmu", 0, "arm-pmu", &db8500_pmu_platdata),
 	/* Requires DMA bindings. */
+	OF_DEV_AUXDATA("arm,pl18x", 0x80126000, "sdi0",  NULL),
+	OF_DEV_AUXDATA("arm,pl18x", 0x80118000, "sdi1",  NULL),
+	OF_DEV_AUXDATA("arm,pl18x", 0x80005000, "sdi2",  NULL),
+	OF_DEV_AUXDATA("arm,pl18x", 0x80114000, "sdi4",  NULL),
 	OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80123000,
 		       "ux500-msp-i2s.0", &msp0_platform_data),
 	OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80124000,
-- 
cgit 


From 5281973012bdcfd93a8f6e0f5b4e04af0038ea99 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Wed, 13 Nov 2013 09:33:36 +0100
Subject: Revert "ARM: ux500: Stop passing MMC's platform data for Device Tree
 boots"

This reverts commit 49c129519a7a8840767321c38d2eaf84a263529b.

The special settings for the SD/MMC card parameters that are not
yet fully agreed upon how to encode into the device tree went missing
with this commit. We need to first put it into the device tree,
and then remove the platform data.

Cc: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/mach-ux500/cpu-db8500.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 8e7e60d2a429..12c7e5c03ea4 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -140,10 +140,10 @@ static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = {
 	/* Requires call-back bindings. */
 	OF_DEV_AUXDATA("arm,cortex-a9-pmu", 0, "arm-pmu", &db8500_pmu_platdata),
 	/* Requires DMA bindings. */
-	OF_DEV_AUXDATA("arm,pl18x", 0x80126000, "sdi0",  NULL),
-	OF_DEV_AUXDATA("arm,pl18x", 0x80118000, "sdi1",  NULL),
-	OF_DEV_AUXDATA("arm,pl18x", 0x80005000, "sdi2",  NULL),
-	OF_DEV_AUXDATA("arm,pl18x", 0x80114000, "sdi4",  NULL),
+	OF_DEV_AUXDATA("arm,pl18x", 0x80126000, "sdi0",  &mop500_sdi0_data),
+	OF_DEV_AUXDATA("arm,pl18x", 0x80118000, "sdi1",  &mop500_sdi1_data),
+	OF_DEV_AUXDATA("arm,pl18x", 0x80005000, "sdi2",  &mop500_sdi2_data),
+	OF_DEV_AUXDATA("arm,pl18x", 0x80114000, "sdi4",  &mop500_sdi4_data),
 	OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80123000,
 		       "ux500-msp-i2s.0", &msp0_platform_data),
 	OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80124000,
-- 
cgit 


From 912e663127c5f700da6805ce21635dce703cb2cc Mon Sep 17 00:00:00 2001
From: Joel Fernandes <joelf@ti.com>
Date: Tue, 26 Nov 2013 15:03:36 -0800
Subject: ARM: OMAP2+: Disable POSTED mode for errata i103 and i767

Enabling of Posted mode is seen to cause problems on dmtimer modules on AM33xx
(much like other OMAPs).  Reference discussions on forums [1] [2]. Earlier
patch solving this on other OMAPs [3].

For OMAP SoCs with this errata, the fix has been to not enable Posted mode.
However, on some SoCs (atleast AM33xx) which carry this errata, Posted mode
is enabled on reset. So we not only need to ignore enabling of the POSTED bit
when the timer is requested, but also disable Posted mode if errata is present.

[1] http://e2e.ti.com/support/arm/sitara_arm/f/791/t/285744.aspx
[2] http://e2e.ti.com/support/arm/sitara_arm/f/791/t/270632.aspx
[3] http://www.spinics.net/lists/linux-omap/msg81770.html

Cc: stable@vgerk.kernel.org
Reported-by: Russ Dill <russ.dill@ti.com>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Joel Fernandes <joelf@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/plat-omap/include/plat/dmtimer.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm/plat-omap/include/plat/dmtimer.h b/arch/arm/plat-omap/include/plat/dmtimer.h
index fb92abb91628..2861b155485a 100644
--- a/arch/arm/plat-omap/include/plat/dmtimer.h
+++ b/arch/arm/plat-omap/include/plat/dmtimer.h
@@ -336,8 +336,11 @@ static inline void __omap_dm_timer_enable_posted(struct omap_dm_timer *timer)
 	if (timer->posted)
 		return;
 
-	if (timer->errata & OMAP_TIMER_ERRATA_I103_I767)
+	if (timer->errata & OMAP_TIMER_ERRATA_I103_I767) {
+		timer->posted = OMAP_TIMER_NONPOSTED;
+		__omap_dm_timer_write(timer, OMAP_TIMER_IF_CTRL_REG, 0, 0);
 		return;
+	}
 
 	__omap_dm_timer_write(timer, OMAP_TIMER_IF_CTRL_REG,
 			      OMAP_TIMER_CTRL_POSTED, 0);
-- 
cgit 


From 11d3a7d6d4c1df43240cc8b8aaa2dcff4e3fe072 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Tue, 26 Nov 2013 15:03:36 -0800
Subject: ARM: OMAP2+: dss-common: change IGEP's DVI DDC i2c bus

IGEP's DVI connector's DDC pins are connected to OMAP's third i2c bus.

When booting with Device Trees the requested bus number is set to -1
which means that the bus number should be dynamically assigned. So the
third i2c bus has 2 has a bus number.

Since now only DT booting is supported for IGEP boards after commit
06ff74fd ("ARM: OMAP2+: remove legacy support for IGEP boards"), the
i2c bus number has to be changed.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/dss-common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-omap2/dss-common.c b/arch/arm/mach-omap2/dss-common.c
index 365bfd3d9c68..dadccc91488c 100644
--- a/arch/arm/mach-omap2/dss-common.c
+++ b/arch/arm/mach-omap2/dss-common.c
@@ -223,7 +223,7 @@ void __init omap_4430sdp_display_init_of(void)
 static struct connector_dvi_platform_data omap3_igep2_dvi_connector_pdata = {
 	.name                   = "dvi",
 	.source                 = "tfp410.0",
-	.i2c_bus_num            = 3,
+	.i2c_bus_num            = 2,
 };
 
 static struct platform_device omap3_igep2_dvi_connector_device = {
-- 
cgit 


From 8559133d82560a8b1f5d32419c6c829d81b89fb1 Mon Sep 17 00:00:00 2001
From: Enric Balletbo i Serra <eballetbo@gmail.com>
Date: Tue, 26 Nov 2013 15:03:36 -0800
Subject: ARM: dts: omap3-igep: Fix bus-width for mmc1

Both, IGEPv2 and IGEP COM MODULE have a bus-width of 4 not 8, so fix this and
do not mux data pins from mmc1_data4 to mmc1_data7.

Signed-off-by: Enric Balletbo i Serra <eballetbo@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap3-igep.dtsi | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/arch/arm/boot/dts/omap3-igep.dtsi b/arch/arm/boot/dts/omap3-igep.dtsi
index ba1e58b7b7e3..d4fecce91066 100644
--- a/arch/arm/boot/dts/omap3-igep.dtsi
+++ b/arch/arm/boot/dts/omap3-igep.dtsi
@@ -65,10 +65,6 @@
 			0x11a (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_dat1.sdmmc1_dat1 */
 			0x11c (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_dat2.sdmmc1_dat2 */
 			0x11e (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_dat3.sdmmc1_dat3 */
-			0x120 (PIN_INPUT | MUX_MODE0)		/* sdmmc1_dat4.sdmmc1_dat4 */
-			0x122 (PIN_INPUT | MUX_MODE0)		/* sdmmc1_dat5.sdmmc1_dat5 */
-			0x124 (PIN_INPUT | MUX_MODE0)		/* sdmmc1_dat6.sdmmc1_dat6 */
-			0x126 (PIN_INPUT | MUX_MODE0)		/* sdmmc1_dat7.sdmmc1_dat7 */
 		>;
 	};
 
@@ -114,7 +110,7 @@
       pinctrl-0 = <&mmc1_pins>;
       vmmc-supply = <&vmmc1>;
       vmmc_aux-supply = <&vsim>;
-      bus-width = <8>;
+      bus-width = <4>;
 };
 
 &mmc2 {
-- 
cgit 


From 0e9fd77771d0a0c3318905d33f29eec7680dfe5e Mon Sep 17 00:00:00 2001
From: Enric Balletbo i Serra <eballetbo@gmail.com>
Date: Tue, 26 Nov 2013 15:03:37 -0800
Subject: ARM: dts: omap3-igep: Add support for LBEE1USJYC WiFi connected to
 SDIO

The LBEE1USJYC is a WiFi/BT combo module used on OMAP3-based IGEP boards. In
both cases, IGEPv2 Rev. C and IGEP COM MODULE, the module is connected using
the same MMC interface and uses the same GPIOs.

Signed-off-by: Enric Balletbo i Serra <eballetbo@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap3-igep.dtsi | 45 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 44 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/omap3-igep.dtsi b/arch/arm/boot/dts/omap3-igep.dtsi
index d4fecce91066..b3517b2910a5 100644
--- a/arch/arm/boot/dts/omap3-igep.dtsi
+++ b/arch/arm/boot/dts/omap3-igep.dtsi
@@ -24,6 +24,25 @@
 		ti,mcbsp = <&mcbsp2>;
 		ti,codec = <&twl_audio>;
 	};
+
+	vdd33: regulator-vdd33 {
+		compatible = "regulator-fixed";
+		regulator-name = "vdd33";
+		regulator-always-on;
+	};
+
+	lbee1usjyc_vmmc: lbee1usjyc_vmmc {
+		pinctrl-names = "default";
+		pinctrl-0 = <&lbee1usjyc_pins>;
+		compatible = "regulator-fixed";
+		regulator-name = "regulator-lbee1usjyc";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		gpio = <&gpio5 10 GPIO_ACTIVE_HIGH>;	/* gpio_138 WIFI_PDN */
+		startup-delay-us = <10000>;
+		enable-active-high;
+		vin-supply = <&vdd33>;
+	};
 };
 
 &omap3_pmx_core {
@@ -48,6 +67,15 @@
 		>;
 	};
 
+	/* WiFi/BT combo */
+	lbee1usjyc_pins: pinmux_lbee1usjyc_pins {
+		pinctrl-single,pins = <
+			0x136 (PIN_OUTPUT | MUX_MODE4)	/* sdmmc2_dat5.gpio_137 */
+			0x138 (PIN_OUTPUT | MUX_MODE4)	/* sdmmc2_dat6.gpio_138 */
+			0x13a (PIN_OUTPUT | MUX_MODE4)	/* sdmmc2_dat7.gpio_139 */
+		>;
+	};
+
 	mcbsp2_pins: pinmux_mcbsp2_pins {
 		pinctrl-single,pins = <
 			0x10c (PIN_INPUT | MUX_MODE0)		/* mcbsp2_fsx.mcbsp2_fsx */
@@ -68,6 +96,17 @@
 		>;
 	};
 
+	mmc2_pins: pinmux_mmc2_pins {
+		pinctrl-single,pins = <
+			0x128 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_clk.sdmmc2_clk */
+			0x12a (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_cmd.sdmmc2_cmd */
+			0x12c (PIN_INPUT_PULLUP | MUX_MODE0) 	/* sdmmc2_dat0.sdmmc2_dat0 */
+			0x12e (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_dat1.sdmmc2_dat1 */
+			0x130 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_dat2.sdmmc2_dat2 */
+			0x132 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc2_dat3.sdmmc2_dat3 */
+		>;
+	};
+
 	smsc911x_pins: pinmux_smsc911x_pins {
 		pinctrl-single,pins = <
 			0x1a2 (PIN_INPUT | MUX_MODE4)		/* mcspi1_cs2.gpio_176 */
@@ -114,7 +153,11 @@
 };
 
 &mmc2 {
-	status = "disabled";
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc2_pins>;
+	vmmc-supply = <&lbee1usjyc_vmmc>;
+	bus-width = <4>;
+	non-removable;
 };
 
 &mmc3 {
-- 
cgit 


From 9aa36dfd3d9a1c9e305e53f5c0915036c3941a3f Mon Sep 17 00:00:00 2001
From: Enric Balletbo i Serra <eballetbo@gmail.com>
Date: Tue, 26 Nov 2013 15:03:37 -0800
Subject: ARM: dts: omap3-igep: Update to use the TI AM/DM37x processor

Most of the boards are using the TI AM/DM37x processor, there is only a small
quantity of IGEP Processor Boards based on TI OMAP3530. So it's better use the
omap36xx.dtsi include instead of omap34xx.dtsi include. We can add support
for the 34xx based variant later on as needed.

To avoid confusion we have added to the model the (TI AM/DM37x) comment.

Signed-off-by: Enric Balletbo i Serra <eballetbo@gmail.com>
[tony@atomide.com: updated comments for the 34xx to 36xx include change]
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap3-igep.dtsi    | 4 ++--
 arch/arm/boot/dts/omap3-igep0020.dts | 4 ++--
 arch/arm/boot/dts/omap3-igep0030.dts | 4 ++--
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm/boot/dts/omap3-igep.dtsi b/arch/arm/boot/dts/omap3-igep.dtsi
index b3517b2910a5..e4c87693b100 100644
--- a/arch/arm/boot/dts/omap3-igep.dtsi
+++ b/arch/arm/boot/dts/omap3-igep.dtsi
@@ -1,5 +1,5 @@
 /*
- * Device Tree Source for IGEP Technology devices
+ * Common device tree for IGEP boards based on AM/DM37x
  *
  * Copyright (C) 2012 Javier Martinez Canillas <javier@collabora.co.uk>
  * Copyright (C) 2012 Enric Balletbo i Serra <eballetbo@gmail.com>
@@ -10,7 +10,7 @@
  */
 /dts-v1/;
 
-#include "omap34xx.dtsi"
+#include "omap36xx.dtsi"
 
 / {
 	memory {
diff --git a/arch/arm/boot/dts/omap3-igep0020.dts b/arch/arm/boot/dts/omap3-igep0020.dts
index d5cc79267250..33ce1236e96e 100644
--- a/arch/arm/boot/dts/omap3-igep0020.dts
+++ b/arch/arm/boot/dts/omap3-igep0020.dts
@@ -1,5 +1,5 @@
 /*
- * Device Tree Source for IGEPv2 board
+ * Device Tree Source for IGEPv2 Rev. (TI OMAP AM/DM37x)
  *
  * Copyright (C) 2012 Javier Martinez Canillas <javier@collabora.co.uk>
  * Copyright (C) 2012 Enric Balletbo i Serra <eballetbo@gmail.com>
@@ -13,7 +13,7 @@
 #include "omap-gpmc-smsc911x.dtsi"
 
 / {
-	model = "IGEPv2";
+	model = "IGEPv2 (TI OMAP AM/DM37x)";
 	compatible = "isee,omap3-igep0020", "ti,omap3";
 
 	leds {
diff --git a/arch/arm/boot/dts/omap3-igep0030.dts b/arch/arm/boot/dts/omap3-igep0030.dts
index 525e6d9b0978..02a23f8a3384 100644
--- a/arch/arm/boot/dts/omap3-igep0030.dts
+++ b/arch/arm/boot/dts/omap3-igep0030.dts
@@ -1,5 +1,5 @@
 /*
- * Device Tree Source for IGEP COM Module
+ * Device Tree Source for IGEP COM MODULE (TI OMAP AM/DM37x)
  *
  * Copyright (C) 2012 Javier Martinez Canillas <javier@collabora.co.uk>
  * Copyright (C) 2012 Enric Balletbo i Serra <eballetbo@gmail.com>
@@ -12,7 +12,7 @@
 #include "omap3-igep.dtsi"
 
 / {
-	model = "IGEP COM Module";
+	model = "IGEP COM MODULE (TI OMAP AM/DM37x)";
 	compatible = "isee,omap3-igep0030", "ti,omap3";
 
 	leds {
-- 
cgit 


From d526daebfd88706b52573325920dac33d14a5f6c Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Tue, 26 Nov 2013 15:03:37 -0800
Subject: ARM: dts: omap3-igep0020: Add pinmux setup for i2c devices

Add pin muxing support for IGEP boards i2c controllers.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap3-igep.dtsi | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-igep.dtsi b/arch/arm/boot/dts/omap3-igep.dtsi
index e4c87693b100..165aaf7591ba 100644
--- a/arch/arm/boot/dts/omap3-igep.dtsi
+++ b/arch/arm/boot/dts/omap3-igep.dtsi
@@ -113,10 +113,33 @@
 		>;
 	};
 
+	i2c1_pins: pinmux_i2c1_pins {
+		pinctrl-single,pins = <
+			0x18a (PIN_INPUT | MUX_MODE0)   /* i2c1_scl.i2c1_scl */
+			0x18c (PIN_INPUT | MUX_MODE0)   /* i2c1_sda.i2c1_sda */
+		>;
+	};
+
+	i2c2_pins: pinmux_i2c2_pins {
+		pinctrl-single,pins = <
+			0x18e (PIN_INPUT | MUX_MODE0)   /* i2c2_scl.i2c2_scl */
+			0x190 (PIN_INPUT | MUX_MODE0)   /* i2c2_sda.i2c2_sda */
+		>;
+	};
+
+	i2c3_pins: pinmux_i2c3_pins {
+		pinctrl-single,pins = <
+			0x192 (PIN_INPUT | MUX_MODE0)   /* i2c3_scl.i2c3_scl */
+			0x194 (PIN_INPUT | MUX_MODE0)   /* i2c3_sda.i2c3_sda */
+		>;
+	};
+
 	leds_pins: pinmux_leds_pins { };
 };
 
 &i2c1 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c1_pins>;
 	clock-frequency = <2600000>;
 
 	twl: twl@48 {
@@ -136,9 +159,16 @@
 #include "twl4030_omap3.dtsi"
 
 &i2c2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c2_pins>;
 	clock-frequency = <400000>;
 };
 
+&i2c3 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&i2c3_pins>;
+};
+
 &mcbsp2 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&mcbsp2_pins>;
-- 
cgit 


From 50592dc30ca3617b7b66abd7071930e2489bff26 Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Tue, 26 Nov 2013 15:03:38 -0800
Subject: ARM: dts: omap3-igep0020: Add pinmuxing for DVI output

The IGEPv2 has a TFP410 DPI-to-DVI encoder attached to OMAP's
Display SubSystem (DSS).

Add mux setup for DSS pins and also for the GPIO 170 pin that
is used to ensure that the DVI-D is powered down on power up.

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap3-igep0020.dts | 41 ++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-igep0020.dts b/arch/arm/boot/dts/omap3-igep0020.dts
index 33ce1236e96e..b9a9e17acb58 100644
--- a/arch/arm/boot/dts/omap3-igep0020.dts
+++ b/arch/arm/boot/dts/omap3-igep0020.dts
@@ -67,6 +67,8 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <
 		&hsusbb1_pins
+		&tfp410_pins
+		&dss_pins
 	>;
 
 	hsusbb1_pins: pinmux_hsusbb1_pins {
@@ -85,6 +87,45 @@
 			0x5ba (PIN_INPUT_PULLDOWN | MUX_MODE3)	/* etk_d7.hsusb1_data3 */
 		>;
 	};
+
+	tfp410_pins: tfp410_dvi_pins {
+		pinctrl-single,pins = <
+			0x196 (PIN_OUTPUT | MUX_MODE4)   /* hdq_sio.gpio_170 */
+		>;
+	};
+
+	dss_pins: pinmux_dss_dvi_pins {
+		pinctrl-single,pins = <
+			0x0a4 (PIN_OUTPUT | MUX_MODE0)   /* dss_pclk.dss_pclk */
+			0x0a6 (PIN_OUTPUT | MUX_MODE0)   /* dss_hsync.dss_hsync */
+			0x0a8 (PIN_OUTPUT | MUX_MODE0)   /* dss_vsync.dss_vsync */
+			0x0aa (PIN_OUTPUT | MUX_MODE0)   /* dss_acbias.dss_acbias */
+			0x0ac (PIN_OUTPUT | MUX_MODE0)   /* dss_data0.dss_data0 */
+			0x0ae (PIN_OUTPUT | MUX_MODE0)   /* dss_data1.dss_data1 */
+			0x0b0 (PIN_OUTPUT | MUX_MODE0)   /* dss_data2.dss_data2 */
+			0x0b2 (PIN_OUTPUT | MUX_MODE0)   /* dss_data3.dss_data3 */
+			0x0b4 (PIN_OUTPUT | MUX_MODE0)   /* dss_data4.dss_data4 */
+			0x0b6 (PIN_OUTPUT | MUX_MODE0)   /* dss_data5.dss_data5 */
+			0x0b8 (PIN_OUTPUT | MUX_MODE0)   /* dss_data6.dss_data6 */
+			0x0ba (PIN_OUTPUT | MUX_MODE0)   /* dss_data7.dss_data7 */
+			0x0bc (PIN_OUTPUT | MUX_MODE0)   /* dss_data8.dss_data8 */
+			0x0be (PIN_OUTPUT | MUX_MODE0)   /* dss_data9.dss_data9 */
+			0x0c0 (PIN_OUTPUT | MUX_MODE0)   /* dss_data10.dss_data10 */
+			0x0c2 (PIN_OUTPUT | MUX_MODE0)   /* dss_data11.dss_data11 */
+			0x0c4 (PIN_OUTPUT | MUX_MODE0)   /* dss_data12.dss_data12 */
+			0x0c6 (PIN_OUTPUT | MUX_MODE0)   /* dss_data13.dss_data13 */
+			0x0c8 (PIN_OUTPUT | MUX_MODE0)   /* dss_data14.dss_data14 */
+			0x0ca (PIN_OUTPUT | MUX_MODE0)   /* dss_data15.dss_data15 */
+			0x0cc (PIN_OUTPUT | MUX_MODE0)   /* dss_data16.dss_data16 */
+			0x0ce (PIN_OUTPUT | MUX_MODE0)   /* dss_data17.dss_data17 */
+			0x0d0 (PIN_OUTPUT | MUX_MODE0)   /* dss_data18.dss_data18 */
+			0x0d2 (PIN_OUTPUT | MUX_MODE0)   /* dss_data19.dss_data19 */
+			0x0d4 (PIN_OUTPUT | MUX_MODE0)   /* dss_data20.dss_data20 */
+			0x0d6 (PIN_OUTPUT | MUX_MODE0)   /* dss_data21.dss_data21 */
+			0x0d8 (PIN_OUTPUT | MUX_MODE0)   /* dss_data22.dss_data22 */
+			0x0da (PIN_OUTPUT | MUX_MODE0)   /* dss_data23.dss_data23 */
+		>;
+	};
 };
 
 &leds_pins {
-- 
cgit 


From 0710b679862dc730eb9900592649929da3ec824e Mon Sep 17 00:00:00 2001
From: Enric Balletbo i Serra <eballetbo@gmail.com>
Date: Tue, 26 Nov 2013 15:03:38 -0800
Subject: ARM: dts: AM33XX BASE0033: add pinmux and hdmi node to enable display

Enable the hdmi output and the LCD Controller on IGEP AQUILA. Also
configure the correct pinmux for output of video data from the SoC
to the HDMI encoder.

Signed-off-by: Enric Balletbo i Serra <eballetbo@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/am335x-base0033.dts | 46 +++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)

diff --git a/arch/arm/boot/dts/am335x-base0033.dts b/arch/arm/boot/dts/am335x-base0033.dts
index b4f95c2bbf74..620970c0c99a 100644
--- a/arch/arm/boot/dts/am335x-base0033.dts
+++ b/arch/arm/boot/dts/am335x-base0033.dts
@@ -13,4 +13,50 @@
 / {
 	model = "IGEP COM AM335x on AQUILA Expansion";
 	compatible = "isee,am335x-base0033", "isee,am335x-igep0033", "ti,am33xx";
+
+	hdmi {
+		compatible = "ti,tilcdc,slave";
+		i2c = <&i2c0>;
+		pinctrl-names = "default", "off";
+		pinctrl-0 = <&nxp_hdmi_pins>;
+		pinctrl-1 = <&nxp_hdmi_off_pins>;
+		status = "okay";
+	};
+};
+
+&am33xx_pinmux {
+	nxp_hdmi_pins: pinmux_nxp_hdmi_pins {
+		pinctrl-single,pins = <
+			0x1b0 (PIN_OUTPUT | MUX_MODE3)	/* xdma_event_intr0.clkout1 */
+			0xa0 (PIN_OUTPUT | MUX_MODE0)	/* lcd_data0 */
+			0xa4 (PIN_OUTPUT | MUX_MODE0)	/* lcd_data1 */
+			0xa8 (PIN_OUTPUT | MUX_MODE0)	/* lcd_data2 */
+			0xac (PIN_OUTPUT | MUX_MODE0)	/* lcd_data3 */
+			0xb0 (PIN_OUTPUT | MUX_MODE0)	/* lcd_data4 */
+			0xb4 (PIN_OUTPUT | MUX_MODE0)	/* lcd_data5 */
+			0xb8 (PIN_OUTPUT | MUX_MODE0)	/* lcd_data6 */
+			0xbc (PIN_OUTPUT | MUX_MODE0)	/* lcd_data7 */
+			0xc0 (PIN_OUTPUT | MUX_MODE0)	/* lcd_data8 */
+			0xc4 (PIN_OUTPUT | MUX_MODE0)	/* lcd_data9 */
+			0xc8 (PIN_OUTPUT | MUX_MODE0)	/* lcd_data10 */
+			0xcc (PIN_OUTPUT | MUX_MODE0)	/* lcd_data11 */
+			0xd0 (PIN_OUTPUT | MUX_MODE0)	/* lcd_data12 */
+			0xd4 (PIN_OUTPUT | MUX_MODE0)	/* lcd_data13 */
+			0xd8 (PIN_OUTPUT | MUX_MODE0)	/* lcd_data14 */
+			0xdc (PIN_OUTPUT | MUX_MODE0)	/* lcd_data15 */
+			0xe0 (PIN_OUTPUT | MUX_MODE0)	/* lcd_vsync */
+			0xe4 (PIN_OUTPUT | MUX_MODE0)	/* lcd_hsync */
+			0xe8 (PIN_OUTPUT | MUX_MODE0)	/* lcd_pclk */
+			0xec (PIN_OUTPUT | MUX_MODE0)	/* lcd_ac_bias_en */
+		>;
+	};
+	nxp_hdmi_off_pins: pinmux_nxp_hdmi_off_pins {
+		pinctrl-single,pins = <
+			0x1b0 (PIN_OUTPUT | MUX_MODE3)	/* xdma_event_intr0.clkout1 */
+		>;
+	};
+};
+
+&lcdc {
+	status = "okay";
 };
-- 
cgit 


From f3689fd6dd30974d5b5ccf1daea964440ca5955f Mon Sep 17 00:00:00 2001
From: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Date: Tue, 26 Nov 2013 15:03:38 -0800
Subject: ARM: dts: AM33XX BASE0033: add pinmux and user led support

Enable the user leds on the IGEP AQUILA EXPANSION. The has two leds,
one green and one red, that are controllable by software.

Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/am335x-base0033.dts | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/arch/arm/boot/dts/am335x-base0033.dts b/arch/arm/boot/dts/am335x-base0033.dts
index 620970c0c99a..ffae1482d954 100644
--- a/arch/arm/boot/dts/am335x-base0033.dts
+++ b/arch/arm/boot/dts/am335x-base0033.dts
@@ -22,6 +22,25 @@
 		pinctrl-1 = <&nxp_hdmi_off_pins>;
 		status = "okay";
 	};
+
+	leds_base {
+		pinctrl-names = "default";
+		pinctrl-0 = <&leds_base_pins>;
+
+		compatible = "gpio-leds";
+
+		led@0 {
+			label = "base:red:user";
+			gpios = <&gpio1 21 GPIO_ACTIVE_HIGH>;	/* gpio1_21 */
+			default-state = "off";
+		};
+
+		led@1 {
+			label = "base:green:user";
+			gpios = <&gpio2 0 GPIO_ACTIVE_HIGH>;	/* gpio2_0 */
+			default-state = "off";
+		};
+	};
 };
 
 &am33xx_pinmux {
@@ -55,6 +74,13 @@
 			0x1b0 (PIN_OUTPUT | MUX_MODE3)	/* xdma_event_intr0.clkout1 */
 		>;
 	};
+
+	leds_base_pins: pinmux_leds_base_pins {
+		pinctrl-single,pins = <
+			0x54 (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpmc_a5.gpio1_21 */
+			0x88 (PIN_OUTPUT_PULLDOWN | MUX_MODE7)	/* gpmc_csn3.gpio2_0 */
+		>;
+	};
 };
 
 &lcdc {
-- 
cgit 


From d8e5b2bdd3674a65f3f50fb54061516d4b6c999f Mon Sep 17 00:00:00 2001
From: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Date: Tue, 26 Nov 2013 15:03:38 -0800
Subject: ARM: dts: AM33XX BASE0033: add 32KBit EEPROM support

The IGEP AQUILA EXPANSION has a 32KBit EEPROM for user data storage.

Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/am335x-base0033.dts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/boot/dts/am335x-base0033.dts b/arch/arm/boot/dts/am335x-base0033.dts
index ffae1482d954..72a9b3fc4251 100644
--- a/arch/arm/boot/dts/am335x-base0033.dts
+++ b/arch/arm/boot/dts/am335x-base0033.dts
@@ -86,3 +86,10 @@
 &lcdc {
 	status = "okay";
 };
+
+&i2c0 {
+	eeprom: eeprom@50 {
+		compatible = "at,24c256";
+		reg = <0x50>;
+	};
+};
-- 
cgit 


From caa73370ead3160ed6cdabbfeecc5fbbda06d903 Mon Sep 17 00:00:00 2001
From: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Date: Tue, 26 Nov 2013 15:03:39 -0800
Subject: ARM: dts: AM33XX IGEP0033: add USB support

Add node to support the USB Host and the USB OTG on the IGEP AQUILA
Processor Board.

Signed-off-by: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/am335x-igep0033.dtsi | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/arch/arm/boot/dts/am335x-igep0033.dtsi b/arch/arm/boot/dts/am335x-igep0033.dtsi
index 619624479311..7063311a58d9 100644
--- a/arch/arm/boot/dts/am335x-igep0033.dtsi
+++ b/arch/arm/boot/dts/am335x-igep0033.dtsi
@@ -199,6 +199,35 @@
 	pinctrl-0 = <&uart0_pins>;
 };
 
+&usb {
+	status = "okay";
+
+	control@44e10000 {
+		status = "okay";
+	};
+
+	usb-phy@47401300 {
+		status = "okay";
+	};
+
+	usb-phy@47401b00 {
+		status = "okay";
+	};
+
+	usb@47401000 {
+		status = "okay";
+	};
+
+	usb@47401800 {
+		status = "okay";
+		dr_mode = "host";
+	};
+
+	dma-controller@07402000  {
+		status = "okay";
+	};
+};
+
 #include "tps65910.dtsi"
 
 &tps {
-- 
cgit 


From 2f2befd820252d05be7b1f5528a57af85338f59c Mon Sep 17 00:00:00 2001
From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Date: Tue, 26 Nov 2013 15:03:39 -0800
Subject: ARM: dts: omap3-igep0020: name twl4030 VPLL2 regulator as vdds_dsi

On Device Tree boot the VDDS_DSI regulator is not linked to
the DPI device so omapfb driver probing fails with:

[    3.186035] OMAPFB: omapfb_probe
[    3.190704] omapdss DPI error: can't get VDDS_DSI regulator
[    3.196594] omapfb omapfb: failed to connect default display
[    3.202667] omapfb omapfb: failed to init overlay connections
[    3.208892] OMAPFB: free_resources
[    3.212493] OMAPFB: free all fbmem
[    3.216735] omapfb omapfb: failed to setup omapfb

As a workaround name the VPLL2 regulator from twl4030 as vdds_dsi
so getting the VDDS_DSI regulator will succeed on dpi_init_regulator().

Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap3-igep0020.dts | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-igep0020.dts b/arch/arm/boot/dts/omap3-igep0020.dts
index b9a9e17acb58..1c7e74d2d2bc 100644
--- a/arch/arm/boot/dts/omap3-igep0020.dts
+++ b/arch/arm/boot/dts/omap3-igep0020.dts
@@ -215,3 +215,8 @@
 &usbhsehci {
 	phys = <&hsusb1_phy>;
 };
+
+&vpll2 {
+        /* Needed for DSS */
+        regulator-name = "vdds_dsi";
+};
-- 
cgit 


From 30023a7e4fef11c596fd7f3c323035c49dfaed85 Mon Sep 17 00:00:00 2001
From: Roger Quadros <rogerq@ti.com>
Date: Tue, 26 Nov 2013 15:03:39 -0800
Subject: ARM: dts: omap3-beagle: Fix USB host on beagle boards (for 3.13)

Beagle (rev. C4) and Beagle-XM (all revs) need VAUX2 1.8V supply
for the USB PHY.

As the generic PHY driver can't handle more than one supply
at the moment, we configure this supply to be always on.
This will cause a very small power impact if the USB host subsystem
is not in use, about 76.86 micro-W + LDO power.

Older Beagle boards (prior to C4) don't have VAUX2 connected anywhere,
so there won't be any functional impact on those boards other than
some additional LDO power consumption.

Reported-by: Nishanth Menon <nm@ti.com>
Tested-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap3-beagle-xm.dts | 7 +++++++
 arch/arm/boot/dts/omap3-beagle.dts    | 7 +++++++
 2 files changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-beagle-xm.dts b/arch/arm/boot/dts/omap3-beagle-xm.dts
index 31a632f7effb..df33a50bc070 100644
--- a/arch/arm/boot/dts/omap3-beagle-xm.dts
+++ b/arch/arm/boot/dts/omap3-beagle-xm.dts
@@ -215,3 +215,10 @@
 &usbhsehci {
 	phys = <0 &hsusb2_phy>;
 };
+
+&vaux2 {
+	regulator-name = "usb_1v8";
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <1800000>;
+	regulator-always-on;
+};
diff --git a/arch/arm/boot/dts/omap3-beagle.dts b/arch/arm/boot/dts/omap3-beagle.dts
index fa532aaacc68..4e384fcc6ad5 100644
--- a/arch/arm/boot/dts/omap3-beagle.dts
+++ b/arch/arm/boot/dts/omap3-beagle.dts
@@ -178,3 +178,10 @@
 	mode = <3>;
 	power = <50>;
 };
+
+&vaux2 {
+	regulator-name = "vdd_ehci";
+	regulator-min-microvolt = <1800000>;
+	regulator-max-microvolt = <1800000>;
+	regulator-always-on;
+};
-- 
cgit 


From 31ee9181eb92cc727876ec5a2144a1b3cbdf5bb1 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Tue, 26 Nov 2013 15:50:33 -0800
Subject: mmc: omap: Fix DMA configuration to not rely on device id

We are wrongly relying on device id for the DMA configuration
which can lead to wrong DMA channel being selected.

Fix the issue by using the standard resources like we should.

Cc: linux-mmc@vger.kernel.org
Acked-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 drivers/mmc/host/omap.c | 34 ++++++++++++----------------------
 1 file changed, 12 insertions(+), 22 deletions(-)

diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index 0b10a9030f4e..22995873f554 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -90,17 +90,6 @@
 #define OMAP_MMC_CMDTYPE_AC	2
 #define OMAP_MMC_CMDTYPE_ADTC	3
 
-#define OMAP_DMA_MMC_TX		21
-#define OMAP_DMA_MMC_RX		22
-#define OMAP_DMA_MMC2_TX	54
-#define OMAP_DMA_MMC2_RX	55
-
-#define OMAP24XX_DMA_MMC2_TX	47
-#define OMAP24XX_DMA_MMC2_RX	48
-#define OMAP24XX_DMA_MMC1_TX	61
-#define OMAP24XX_DMA_MMC1_RX	62
-
-
 #define DRIVER_NAME "mmci-omap"
 
 /* Specifies how often in millisecs to poll for card status changes
@@ -1330,7 +1319,7 @@ static int mmc_omap_probe(struct platform_device *pdev)
 	struct mmc_omap_host *host = NULL;
 	struct resource *res;
 	dma_cap_mask_t mask;
-	unsigned sig;
+	unsigned sig = 0;
 	int i, ret = 0;
 	int irq;
 
@@ -1407,19 +1396,20 @@ static int mmc_omap_probe(struct platform_device *pdev)
 	host->dma_tx_burst = -1;
 	host->dma_rx_burst = -1;
 
-	if (mmc_omap2())
-		sig = host->id == 0 ? OMAP24XX_DMA_MMC1_TX : OMAP24XX_DMA_MMC2_TX;
-	else
-		sig = host->id == 0 ? OMAP_DMA_MMC_TX : OMAP_DMA_MMC2_TX;
-	host->dma_tx = dma_request_channel(mask, omap_dma_filter_fn, &sig);
+	res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "tx");
+	if (res)
+		sig = res->start;
+	host->dma_tx = dma_request_slave_channel_compat(mask,
+				omap_dma_filter_fn, &sig, &pdev->dev, "tx");
 	if (!host->dma_tx)
 		dev_warn(host->dev, "unable to obtain TX DMA engine channel %u\n",
 			sig);
-	if (mmc_omap2())
-		sig = host->id == 0 ? OMAP24XX_DMA_MMC1_RX : OMAP24XX_DMA_MMC2_RX;
-	else
-		sig = host->id == 0 ? OMAP_DMA_MMC_RX : OMAP_DMA_MMC2_RX;
-	host->dma_rx = dma_request_channel(mask, omap_dma_filter_fn, &sig);
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_DMA, "rx");
+	if (res)
+		sig = res->start;
+	host->dma_rx = dma_request_slave_channel_compat(mask,
+				omap_dma_filter_fn, &sig, &pdev->dev, "rx");
 	if (!host->dma_rx)
 		dev_warn(host->dev, "unable to obtain RX DMA engine channel %u\n",
 			sig);
-- 
cgit 


From 9cb238c00ba5c1ddfff2c2ed6aa66c15b962e4c3 Mon Sep 17 00:00:00 2001
From: Tony Lindgren <tony@atomide.com>
Date: Tue, 26 Nov 2013 15:50:33 -0800
Subject: mmc: omap: Fix I2C dependency and make driver usable with device tree

Some features can be configured by the companion I2C chips,
which may not be available at the probe time. Fix the issue
by returning -EPROBE_DEFER when the MMC controller slots
are not configured.

While at it, let's also add minimal device tree support so
omap24xx platforms can use this driver without legacy mode
since we claim to support device tree for mach-omap2 based
systems.

Although adding the minimal device tree support is not strictly
a fix, it does remove one of the last blockers for dropping a
bunch of legacy platform data for mach-omap2.

Cc: linux-mmc@vger.kernel.org
Acked-by: Chris Ball <cjb@laptop.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 Documentation/devicetree/bindings/mmc/ti-omap.txt | 54 +++++++++++++++++++++++
 drivers/mmc/host/omap.c                           | 11 ++++-
 2 files changed, 64 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/mmc/ti-omap.txt

diff --git a/Documentation/devicetree/bindings/mmc/ti-omap.txt b/Documentation/devicetree/bindings/mmc/ti-omap.txt
new file mode 100644
index 000000000000..8de579969763
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/ti-omap.txt
@@ -0,0 +1,54 @@
+* TI MMC host controller for OMAP1 and 2420
+
+The MMC Host Controller on TI OMAP1 and 2420 family provides
+an interface for MMC, SD, and SDIO types of memory cards.
+
+This file documents differences between the core properties described
+by mmc.txt and the properties used by the omap mmc driver.
+
+Note that this driver will not work with omap2430 or later omaps,
+please see the omap hsmmc driver for the current omaps.
+
+Required properties:
+- compatible: Must be "ti,omap2420-mmc", for OMAP2420 controllers
+- ti,hwmods: For 2420, must be "msdi<n>", where n is controller
+  instance starting 1
+
+Examples:
+
+	msdi1: mmc@4809c000 {
+		compatible = "ti,omap2420-mmc";
+		ti,hwmods = "msdi1";
+		reg = <0x4809c000 0x80>;
+		interrupts = <83>;
+		dmas = <&sdma 61 &sdma 62>;
+		dma-names = "tx", "rx";
+	};
+
+* TI MMC host controller for OMAP1 and 2420
+
+The MMC Host Controller on TI OMAP1 and 2420 family provides
+an interface for MMC, SD, and SDIO types of memory cards.
+
+This file documents differences between the core properties described
+by mmc.txt and the properties used by the omap mmc driver.
+
+Note that this driver will not work with omap2430 or later omaps,
+please see the omap hsmmc driver for the current omaps.
+
+Required properties:
+- compatible: Must be "ti,omap2420-mmc", for OMAP2420 controllers
+- ti,hwmods: For 2420, must be "msdi<n>", where n is controller
+  instance starting 1
+
+Examples:
+
+	msdi1: mmc@4809c000 {
+		compatible = "ti,omap2420-mmc";
+		ti,hwmods = "msdi1";
+		reg = <0x4809c000 0x80>;
+		interrupts = <83>;
+		dmas = <&sdma 61 &sdma 62>;
+		dma-names = "tx", "rx";
+	};
+
diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c
index 22995873f554..98b6b6ef7e5c 100644
--- a/drivers/mmc/host/omap.c
+++ b/drivers/mmc/host/omap.c
@@ -22,6 +22,7 @@
 #include <linux/delay.h>
 #include <linux/spinlock.h>
 #include <linux/timer.h>
+#include <linux/of.h>
 #include <linux/omap-dma.h>
 #include <linux/mmc/host.h>
 #include <linux/mmc/card.h>
@@ -1329,7 +1330,7 @@ static int mmc_omap_probe(struct platform_device *pdev)
 	}
 	if (pdata->nr_slots == 0) {
 		dev_err(&pdev->dev, "no slots\n");
-		return -ENXIO;
+		return -EPROBE_DEFER;
 	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
@@ -1502,12 +1503,20 @@ static int mmc_omap_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#if IS_BUILTIN(CONFIG_OF)
+static const struct of_device_id mmc_omap_match[] = {
+	{ .compatible = "ti,omap2420-mmc", },
+	{ },
+};
+#endif
+
 static struct platform_driver mmc_omap_driver = {
 	.probe		= mmc_omap_probe,
 	.remove		= mmc_omap_remove,
 	.driver		= {
 		.name	= DRIVER_NAME,
 		.owner	= THIS_MODULE,
+		.of_match_table = of_match_ptr(mmc_omap_match),
 	},
 };
 
-- 
cgit 


From 721cb59e9d95eb7f47ec73711ed35ef85e1ea1ca Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Wed, 27 Nov 2013 11:35:47 +1100
Subject: powerpc/windfarm: Fix XServe G5 fan control Makefile issue

We are missing building windfarm_max6690_sensor.o when building
CONFIG_WINDFARM_RM31. Usually all the windfarm drivers are built
and thus this isn't a problem but some more "tailored" setups
(Gentoo ?) building only that driver are not working because
the require sensor module is missing.

Reported-by: Stanislav Ponomarev <devhexorg@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
---
 drivers/macintosh/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/macintosh/Makefile b/drivers/macintosh/Makefile
index 6753b65f8ede..d2f0120bc878 100644
--- a/drivers/macintosh/Makefile
+++ b/drivers/macintosh/Makefile
@@ -40,6 +40,7 @@ obj-$(CONFIG_WINDFARM_RM31)     += windfarm_fcu_controls.o \
 				   windfarm_ad7417_sensor.o \
 				   windfarm_lm75_sensor.o \
 				   windfarm_lm87_sensor.o \
+				   windfarm_max6690_sensor.o \
 				   windfarm_pid.o \
 				   windfarm_cpufreq_clamp.o \
 				   windfarm_rm31.o
-- 
cgit 


From ae5fbae0ccd982dfca0ce363036ed92f5b13f150 Mon Sep 17 00:00:00 2001
From: Dan Williams <dan.j.williams@intel.com>
Date: Tue, 22 Oct 2013 18:35:19 -0700
Subject: [SCSI] libsas: fix usage of ata_tf_to_fis

Since commit 110dd8f19df5 "[SCSI] libsas: fix scr_read/write users and
update the libata documentation" we have been passing pmp=1 and is_cmd=0
to ata_tf_to_fis().  Praveen reports that eSATA attached drives do not
discover correctly.  His investigation found that the BIOS was passing
pmp=0 while Linux was passing pmp=1 and failing to discover the drives.
Update libsas to follow the libata example of pulling the pmp setting
from the ata_link and correct is_cmd to be 1 since all tf's submitted
through ->qc_issue are commands.  Presumably libsas lldds do not care
about is_cmd as they have sideband mechanisms to perform link
management.

http://marc.info/?l=linux-scsi&m=138179681726990

[jejb: checkpatch fix]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reported-by: Praveen Murali <pmurali@logicube.com>
Tested-by: Praveen Murali <pmurali@logicube.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/libsas/sas_ata.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c
index 161c98efade9..d2895836f9fa 100644
--- a/drivers/scsi/libsas/sas_ata.c
+++ b/drivers/scsi/libsas/sas_ata.c
@@ -211,7 +211,7 @@ static unsigned int sas_ata_qc_issue(struct ata_queued_cmd *qc)
 		qc->tf.nsect = 0;
 	}
 
-	ata_tf_to_fis(&qc->tf, 1, 0, (u8*)&task->ata_task.fis);
+	ata_tf_to_fis(&qc->tf, qc->dev->link->pmp, 1, (u8 *)&task->ata_task.fis);
 	task->uldd_task = qc;
 	if (ata_is_atapi(qc->tf.protocol)) {
 		memcpy(task->ata_task.atapi_packet, qc->cdb, qc->dev->cdb_len);
-- 
cgit 


From 2fd3f170e5ba04acc60ee94b2c76ee166727c734 Mon Sep 17 00:00:00 2001
From: Hui Wang <jason77.wang@gmail.com>
Date: Wed, 27 Nov 2013 14:47:26 +0800
Subject: ALSA: hda - Enable mute/mic-mute LEDs for more Thinkpads with
 Conexant codec

Most Thinkpad Edge series laptops use conexant codec, so far although
the codecs have different minor Vendor Id and minor Subsystem Id,
they all belong to the cxt5066 family, this change can make the
mute/mic-mute LEDs support more generic among cxt_5066 family.

This design refers to the similar solution for the realtek codec
ALC269 family in the patch_realtek.c.

Cc: Alex Hung <alex.hung@canonical.com>
Signed-off-by: Hui Wang <hui.wang@canonical.com>
Acked-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_conexant.c | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index c205bb1747fd..1f2717f817a0 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -3244,9 +3244,29 @@ enum {
 #if IS_ENABLED(CONFIG_THINKPAD_ACPI)
 
 #include <linux/thinkpad_acpi.h>
+#include <acpi/acpi.h>
 
 static int (*led_set_func)(int, bool);
 
+static acpi_status acpi_check_cb(acpi_handle handle, u32 lvl, void *context,
+				 void **rv)
+{
+	bool *found = context;
+	*found = true;
+	return AE_OK;
+}
+
+static bool is_thinkpad(struct hda_codec *codec)
+{
+	bool found = false;
+	if (codec->subsystem_id >> 16 != 0x17aa)
+		return false;
+	if (ACPI_SUCCESS(acpi_get_devices("LEN0068", acpi_check_cb, &found, NULL)) && found)
+		return true;
+	found = false;
+	return ACPI_SUCCESS(acpi_get_devices("IBM0068", acpi_check_cb, &found, NULL)) && found;
+}
+
 static void update_tpacpi_mute_led(void *private_data, int enabled)
 {
 	struct hda_codec *codec = private_data;
@@ -3279,6 +3299,8 @@ static void cxt_fixup_thinkpad_acpi(struct hda_codec *codec,
 	bool removefunc = false;
 
 	if (action == HDA_FIXUP_ACT_PROBE) {
+		if (!is_thinkpad(codec))
+			return;
 		if (!led_set_func)
 			led_set_func = symbol_request(tpacpi_led_set);
 		if (!led_set_func) {
@@ -3494,6 +3516,7 @@ static const struct snd_pci_quirk cxt5066_fixups[] = {
 	SND_PCI_QUIRK(0x17aa, 0x3975, "Lenovo U300s", CXT_FIXUP_STEREO_DMIC),
 	SND_PCI_QUIRK(0x17aa, 0x3977, "Lenovo IdeaPad U310", CXT_FIXUP_STEREO_DMIC),
 	SND_PCI_QUIRK(0x17aa, 0x397b, "Lenovo S205", CXT_FIXUP_STEREO_DMIC),
+	SND_PCI_QUIRK_VENDOR(0x17aa, "Thinkpad", CXT_FIXUP_THINKPAD_ACPI),
 	SND_PCI_QUIRK(0x1c06, 0x2011, "Lemote A1004", CXT_PINCFG_LEMOTE_A1004),
 	SND_PCI_QUIRK(0x1c06, 0x2012, "Lemote A1205", CXT_PINCFG_LEMOTE_A1205),
 	{}
-- 
cgit 


From 80897aa787ecd58eabb29deab7cbec9249c9b7e6 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Tue, 26 Nov 2013 13:58:18 +0100
Subject: HID: uhid: fix leak for 64/32 UHID_CREATE

UHID allows short writes so user-space can omit unused fields. We
automatically set them to 0 in the kernel. However, the 64/32 bit
compat-handler didn't do that in the UHID_CREATE fallback. This will
reveal random kernel heap data (of random size, even) to user-space.

Fixes: befde0226a59 ('HID: uhid: make creating devices work on 64/32 systems')

Reported-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/uhid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hid/uhid.c b/drivers/hid/uhid.c
index 93b00d76374c..cedc6da93c19 100644
--- a/drivers/hid/uhid.c
+++ b/drivers/hid/uhid.c
@@ -287,7 +287,7 @@ static int uhid_event_from_user(const char __user *buffer, size_t len,
 			 */
 			struct uhid_create_req_compat *compat;
 
-			compat = kmalloc(sizeof(*compat), GFP_KERNEL);
+			compat = kzalloc(sizeof(*compat), GFP_KERNEL);
 			if (!compat)
 				return -ENOMEM;
 
-- 
cgit 


From 32e475d76a3e40879cd9ee4f69b19615062280d7 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Thu, 21 Nov 2013 12:41:44 +0100
Subject: sched: Expose preempt_schedule_irq()

Tony reported that aa0d53260596 ("ia64: Use preempt_schedule_irq")
broke PREEMPT=n builds on ia64.

Ok, wrapped my brain around it. I tripped over the magic asm foo which
has a single need_resched check and schedule point for both sys call
return and interrupt return.

So you need the schedule_preempt_irq() for kernel preemption from
interrupt return while on a normal syscall preemption a schedule would
be sufficient. But using schedule_preempt_irq() is not harmful here in
any way. It just sets the preempt_active bit also in cases where it
would not be required.

Even on preempt=n kernels adding the preempt_active bit is completely
harmless. So instead of having an extra function, moving the existing
one out of the ifdef PREEMPT looks like the sanest thing to do.

It would also allow getting rid of various other sti/schedule/cli asm
magic in other archs.

Reported-and-Tested-by: Tony Luck <tony.luck@gmail.com>
Fixes: aa0d53260596 ("ia64: Use preempt_schedule_irq")
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[slightly edited Changelog]
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/alpine.DEB.2.02.1311211230030.30673@ionos.tec.linutronix.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 kernel/sched/core.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 718730dd0480..e85cda20ab2b 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -2660,6 +2660,7 @@ asmlinkage void __sched notrace preempt_schedule(void)
 	} while (need_resched());
 }
 EXPORT_SYMBOL(preempt_schedule);
+#endif /* CONFIG_PREEMPT */
 
 /*
  * this is the entry point to schedule() from kernel preemption
@@ -2693,8 +2694,6 @@ asmlinkage void __sched preempt_schedule_irq(void)
 	exception_exit(prev_state);
 }
 
-#endif /* CONFIG_PREEMPT */
-
 int default_wake_function(wait_queue_t *curr, unsigned mode, int wake_flags,
 			  void *key)
 {
-- 
cgit 


From 96739d6e548e16d76de39d059e1e39e70c187fff Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Wed, 20 Nov 2013 09:50:28 +0100
Subject: sched/doc: Fix generation of device-drivers

Since commit 7a6354e241d8 ("sched: Move wait.c into kernel/sched/"), the path
of this file has changed.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Cc: jkosina@suse.cz
Cc: akpm@linux-foundation.org
Cc: linux-doc@vger.kernel.org
Cc: rob@landley.net
Cc: joe@perches.com
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1384937428-15731-1-git-send-email-nicolas.dichtel@6wind.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
 Documentation/DocBook/device-drivers.tmpl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/DocBook/device-drivers.tmpl b/Documentation/DocBook/device-drivers.tmpl
index 6c9d9d37c83a..f5170082bdb3 100644
--- a/Documentation/DocBook/device-drivers.tmpl
+++ b/Documentation/DocBook/device-drivers.tmpl
@@ -58,7 +58,7 @@
      </sect1>
      <sect1><title>Wait queues and Wake events</title>
 !Iinclude/linux/wait.h
-!Ekernel/wait.c
+!Ekernel/sched/wait.c
      </sect1>
      <sect1><title>High-resolution timers</title>
 !Iinclude/linux/ktime.h
-- 
cgit 


From a93455e1c301ce2a4cae11682359fd2067a8fd30 Mon Sep 17 00:00:00 2001
From: Thomas Pugliese <thomas.pugliese@gmail.com>
Date: Tue, 26 Nov 2013 13:58:15 -0600
Subject: ALSA: usb: use multiple packets per urb for Wireless USB inbound
 audio

For Wireless USB audio devices, use multiple isoc packets per URB for
inbound endpoints with a datainterval < 5.  This allows the WUSB host
controller to take advantage of bursting to service endpoints whose
logical polling interval is less than the 4ms minimum polling interval
limit in WUSB.

Signed-off-by: Thomas Pugliese <thomas.pugliese@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/usb/endpoint.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index b9ba0fcc45df..83aabea259d7 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -636,8 +636,22 @@ static int data_ep_set_params(struct snd_usb_endpoint *ep,
 	if (usb_pipein(ep->pipe) ||
 			snd_usb_endpoint_implicit_feedback_sink(ep)) {
 
+		urb_packs = packs_per_ms;
+		/*
+		 * Wireless devices can poll at a max rate of once per 4ms.
+		 * For dataintervals less than 5, increase the packet count to
+		 * allow the host controller to use bursting to fill in the
+		 * gaps.
+		 */
+		if (snd_usb_get_speed(ep->chip->dev) == USB_SPEED_WIRELESS) {
+			int interval = ep->datainterval;
+			while (interval < 5) {
+				urb_packs <<= 1;
+				++interval;
+			}
+		}
 		/* make capture URBs <= 1 ms and smaller than a period */
-		urb_packs = min(max_packs_per_urb, packs_per_ms);
+		urb_packs = min(max_packs_per_urb, urb_packs);
 		while (urb_packs > 1 && urb_packs * maxsize >= period_bytes)
 			urb_packs >>= 1;
 		ep->nurbs = MAX_URBS;
-- 
cgit 


From 2ba3154d9cb13697b97723cce75633b48adfe826 Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Wed, 27 Nov 2013 08:47:02 +0100
Subject: gpio: pl061: move irqdomain initialization

The PL061 driver had the irqdomain initialization in an unfortunate
place: when used with device tree (and thus passing the base IRQ
0) the driver would work, as this registers an irqdomain and waits
for mappings to be done dynamically as the devices request their
IRQs, whereas when booting using platform data the irqdomain core
would attempt to allocate IRQ descriptors dynamically (which works
fine) but also to associate the irq_domain_associate_many() on all
IRQs, which in turn will call the mapping function which at this
point will try to set the type of the IRQ and then tries to acquire
a non-initialized spinlock yielding a backtrace like this:

CPU: 0 PID: 1 Comm: swapper Not tainted 3.13.0-rc1+ #652
Backtrace:
[<c0016f0c>] (dump_backtrace) from [<c00172ac>] (show_stack+0x18/0x1c)
 r6:c798ace0 r5:00000000 r4:c78257e0 r3:00200140
[<c0017294>] (show_stack) from [<c0329ea0>] (dump_stack+0x20/0x28)
[<c0329e80>] (dump_stack) from [<c004fa80>] (__lock_acquire+0x1c0/0x1b80)
[<c004f8c0>] (__lock_acquire) from [<c0051970>] (lock_acquire+0x6c/0x80)
 r10:00000000 r9:c0455234 r8:00000060 r7:c047d798 r6:600000d3 r5:00000000
 r4:c782c000
[<c0051904>] (lock_acquire) from [<c032e484>] (_raw_spin_lock_irqsave+0x60/0x74)
 r6:c01a1100 r5:800000d3 r4:c798acd0
[<c032e424>] (_raw_spin_lock_irqsave) from [<c01a1100>] (pl061_irq_type+0x28/0x)
 r6:00000000 r5:00000000 r4:c798acd0
[<c01a10d8>] (pl061_irq_type) from [<c0059ef4>] (__irq_set_trigger+0x70/0x104)
 r6:00000000 r5:c01a10d8 r4:c046da1c r3:c01a10d8
[<c0059e84>] (__irq_set_trigger) from [<c005b348>] (irq_set_irq_type+0x40/0x60)
 r10:c043240c r8:00000060 r7:00000000 r6:c046da1c r5:00000060 r4:00000000
[<c005b308>] (irq_set_irq_type) from [<c01a1208>] (pl061_irq_map+0x40/0x54)
 r6:c79693c0 r5:c798acd0 r4:00000060
[<c01a11c8>] (pl061_irq_map) from [<c005d27c>] (irq_domain_associate+0xc0/0x190)
 r5:00000060 r4:c046da1c
[<c005d1bc>] (irq_domain_associate) from [<c005d604>] (irq_domain_associate_man)
 r8:00000008 r7:00000000 r6:c79693c0 r5:00000060 r4:00000000
[<c005d5d0>] (irq_domain_associate_many) from [<c005d864>] (irq_domain_add_simp)
 r8:c046578c r7:c035b72c r6:c79693c0 r5:00000060 r4:00000008 r3:00000008
[<c005d814>] (irq_domain_add_simple) from [<c01a1380>] (pl061_probe+0xc4/0x22c)
 r6:00000060 r5:c0464380 r4:c798acd0
[<c01a12bc>] (pl061_probe) from [<c01c0450>] (amba_probe+0x74/0xe0)
 r10:c043240c r9:c0455234 r8:00000000 r7:c047d7f8 r6:c047d744 r5:00000000
 r4:c0464380

This moves the irqdomain initialization to a point where the spinlock
and GPIO chip are both fully propulated, so the callbacks can be used
without crashes.

I had some problem reproducing the crash, as the devm_kzalloc():ed
zeroed memory would seemingly mask the spinlock as something OK,
but by poisoning the lock like this:

u32 *dum;
dum = (u32 *) &chip->lock;
*dum = 0xaaaaaaaaU;

I could reproduce, fix and test the patch.

Reported-by: Russell King <linux@arm.linux.org.uk>
Cc: Rob Herring <robherring2@gmail.com>
Cc: Haojian Zhuang <haojian.zhuang@linaro.org>
Cc: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-pl061.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/gpio/gpio-pl061.c b/drivers/gpio/gpio-pl061.c
index f22f7f3e2e53..b4d42112d02d 100644
--- a/drivers/gpio/gpio-pl061.c
+++ b/drivers/gpio/gpio-pl061.c
@@ -286,11 +286,6 @@ static int pl061_probe(struct amba_device *adev, const struct amba_id *id)
 	if (!chip->base)
 		return -ENOMEM;
 
-	chip->domain = irq_domain_add_simple(adev->dev.of_node, PL061_GPIO_NR,
-					     irq_base, &pl061_domain_ops, chip);
-	if (!chip->domain)
-		return -ENODEV;
-
 	spin_lock_init(&chip->lock);
 
 	chip->gc.request = pl061_gpio_request;
@@ -320,6 +315,11 @@ static int pl061_probe(struct amba_device *adev, const struct amba_id *id)
 	irq_set_chained_handler(irq, pl061_irq_handler);
 	irq_set_handler_data(irq, chip);
 
+	chip->domain = irq_domain_add_simple(adev->dev.of_node, PL061_GPIO_NR,
+					     irq_base, &pl061_domain_ops, chip);
+	if (!chip->domain)
+		return -ENODEV;
+
 	for (i = 0; i < PL061_GPIO_NR; i++) {
 		if (pdata) {
 			if (pdata->directions & (1 << i))
-- 
cgit 


From ced4cefc75fdb8be95eaee325ad0f6b2fc0a484b Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 26 Nov 2013 08:33:45 +0100
Subject: ALSA: hda - Create Headhpone Mic Jack Mode when really needed

When a headphone jack is configurable as input, the generic parser
tries to make it retaskable as Headphone Mic.  The switching can be
done smoothly if Capture Source control exists (i.e. there is another
input source).  Or when user explicitly enables the creation of jack
mode controls, "Headhpone Mic Jack Mode" will be created accordingly.

However, if the headphone mic is the only input source, we have to
create "Headphone Mic Jack Mode" control because there is no capture
source selection.  Otherwise, the generic parser assumes that the
input is constantly enabled, thus the headphone is permanently set
as input.  This situation happens on the old MacBook Airs where no
input is supported properly, for example.

This patch fixes the problem: now "Headphone Mic Jack Mode" is created
when such an input selection isn't possible.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=65681
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_generic.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index 3067ed4fe3b2..3bd89ab0d9af 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -2506,12 +2506,8 @@ static int create_out_jack_modes(struct hda_codec *codec, int num_pins,
 
 	for (i = 0; i < num_pins; i++) {
 		hda_nid_t pin = pins[i];
-		if (pin == spec->hp_mic_pin) {
-			int ret = create_hp_mic_jack_mode(codec, pin);
-			if (ret < 0)
-				return ret;
+		if (pin == spec->hp_mic_pin)
 			continue;
-		}
 		if (get_out_jack_num_items(codec, pin) > 1) {
 			struct snd_kcontrol_new *knew;
 			char name[SNDRV_CTL_ELEM_ID_NAME_MAXLEN];
@@ -2784,9 +2780,6 @@ static int create_hp_mic_jack_mode(struct hda_codec *codec, hda_nid_t pin)
 	struct hda_gen_spec *spec = codec->spec;
 	struct snd_kcontrol_new *knew;
 
-	if (get_out_jack_num_items(codec, pin) <= 1 &&
-	    get_in_jack_num_items(codec, pin) <= 1)
-		return 0; /* no need */
 	knew = snd_hda_gen_add_kctl(spec, "Headphone Mic Jack Mode",
 				    &hp_mic_jack_mode_enum);
 	if (!knew)
@@ -4383,6 +4376,17 @@ int snd_hda_gen_parse_auto_config(struct hda_codec *codec,
 	if (err < 0)
 		return err;
 
+	/* create "Headphone Mic Jack Mode" if no input selection is
+	 * available (or user specifies add_jack_modes hint)
+	 */
+	if (spec->hp_mic_pin &&
+	    (spec->auto_mic || spec->input_mux.num_items == 1 ||
+	     spec->add_jack_modes)) {
+		err = create_hp_mic_jack_mode(codec, spec->hp_mic_pin);
+		if (err < 0)
+			return err;
+	}
+
 	if (spec->add_jack_modes) {
 		if (cfg->line_out_type != AUTO_PIN_SPEAKER_OUT) {
 			err = create_out_jack_modes(codec, cfg->line_outs,
-- 
cgit 


From 16c0cefe8951b2c4b824fd06011ac1b359b1ab3b Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Tue, 26 Nov 2013 08:44:26 +0100
Subject: ALSA: hda - Fix hp-mic mode without VREF bits

When the hp mic pin has no VREF bits, the driver forgot to set PIN_IN
bit.  Spotted during debugging old MacBook Airs.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=65681
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_generic.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index 3bd89ab0d9af..faefff1d3e81 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -2760,7 +2760,7 @@ static int hp_mic_jack_mode_put(struct snd_kcontrol *kcontrol,
 			val &= ~(AC_PINCTL_VREFEN | PIN_HP);
 			val |= get_vref_idx(vref_caps, idx) | PIN_IN;
 		} else
-			val = snd_hda_get_default_vref(codec, nid);
+			val = snd_hda_get_default_vref(codec, nid) | PIN_IN;
 	}
 	snd_hda_set_pin_ctl_cache(codec, nid, val);
 	call_hp_automute(codec, NULL);
-- 
cgit 


From e2f0b00560729c47f39b2bc624eb93d82dc0e3e8 Mon Sep 17 00:00:00 2001
From: Markus Mayer <markus.mayer@linaro.org>
Date: Thu, 21 Nov 2013 15:12:46 -0800
Subject: gpio: bcm281xx: Fix return value of bcm_kona_gpio_get()

We need to return the corresponding bit for a particular GPIO. This bit
contains shift not mask.

Signed-off-by: Markus Mayer <markus.mayer@linaro.org>
Reviewed-by: Tim Kryger <tim.kryger@linaro.org>
Reviewed-by: Matt Porter <matt.porter@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-bcm-kona.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-bcm-kona.c b/drivers/gpio/gpio-bcm-kona.c
index 72c927dc3be1..54c18c220a60 100644
--- a/drivers/gpio/gpio-bcm-kona.c
+++ b/drivers/gpio/gpio-bcm-kona.c
@@ -158,7 +158,7 @@ static int bcm_kona_gpio_get(struct gpio_chip *chip, unsigned gpio)
 	spin_unlock_irqrestore(&kona_gpio->lock, flags);
 
 	/* return the specified bit status */
-	return !!(val & bit);
+	return !!(val & BIT(bit));
 }
 
 static int bcm_kona_gpio_direction_input(struct gpio_chip *chip, unsigned gpio)
-- 
cgit 


From 46bec25da6a41b7308adde746cbcdbbd0bf9b39c Mon Sep 17 00:00:00 2001
From: Bo Shen <voice.shen@atmel.com>
Date: Wed, 27 Nov 2013 18:05:09 +0800
Subject: ASoC: atmel: sam9x5_wm8731: fix oops when unload module

As the priv is not assigned to card->drvdata, it is NULL, so when
unload module, it will cause NULL pointer oops.
Assign priv to card->drvdata to fix this issue.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/atmel/sam9x5_wm8731.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/atmel/sam9x5_wm8731.c b/sound/soc/atmel/sam9x5_wm8731.c
index 992ae38d5a15..1b372283bd01 100644
--- a/sound/soc/atmel/sam9x5_wm8731.c
+++ b/sound/soc/atmel/sam9x5_wm8731.c
@@ -97,6 +97,8 @@ static int sam9x5_wm8731_driver_probe(struct platform_device *pdev)
 		goto out;
 	}
 
+	snd_soc_card_set_drvdata(card, priv);
+
 	card->dev = &pdev->dev;
 	card->owner = THIS_MODULE;
 	card->dai_link = dai;
-- 
cgit 


From df9e3560923a54a559211629895ed9fa1e48ccc0 Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Wed, 27 Nov 2013 15:22:13 +0000
Subject: ASoC: wm5110: Remove output OSR and PGA volume controls

These are managed automatically in current revisions.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/codecs/wm5110.c | 25 -------------------------
 1 file changed, 25 deletions(-)

diff --git a/sound/soc/codecs/wm5110.c b/sound/soc/codecs/wm5110.c
index c3c7396a6181..99b359e19d35 100644
--- a/sound/soc/codecs/wm5110.c
+++ b/sound/soc/codecs/wm5110.c
@@ -248,19 +248,6 @@ ARIZONA_MIXER_CONTROLS("SPKDAT1R", ARIZONA_OUT5RMIX_INPUT_1_SOURCE),
 ARIZONA_MIXER_CONTROLS("SPKDAT2L", ARIZONA_OUT6LMIX_INPUT_1_SOURCE),
 ARIZONA_MIXER_CONTROLS("SPKDAT2R", ARIZONA_OUT6RMIX_INPUT_1_SOURCE),
 
-SOC_SINGLE("HPOUT1 High Performance Switch", ARIZONA_OUTPUT_PATH_CONFIG_1L,
-	   ARIZONA_OUT1_OSR_SHIFT, 1, 0),
-SOC_SINGLE("HPOUT2 High Performance Switch", ARIZONA_OUTPUT_PATH_CONFIG_2L,
-	   ARIZONA_OUT2_OSR_SHIFT, 1, 0),
-SOC_SINGLE("HPOUT3 High Performance Switch", ARIZONA_OUTPUT_PATH_CONFIG_3L,
-	   ARIZONA_OUT3_OSR_SHIFT, 1, 0),
-SOC_SINGLE("Speaker High Performance Switch", ARIZONA_OUTPUT_PATH_CONFIG_4L,
-	   ARIZONA_OUT4_OSR_SHIFT, 1, 0),
-SOC_SINGLE("SPKDAT1 High Performance Switch", ARIZONA_OUTPUT_PATH_CONFIG_5L,
-	   ARIZONA_OUT5_OSR_SHIFT, 1, 0),
-SOC_SINGLE("SPKDAT2 High Performance Switch", ARIZONA_OUTPUT_PATH_CONFIG_6L,
-	   ARIZONA_OUT6_OSR_SHIFT, 1, 0),
-
 SOC_DOUBLE_R("HPOUT1 Digital Switch", ARIZONA_DAC_DIGITAL_VOLUME_1L,
 	     ARIZONA_DAC_DIGITAL_VOLUME_1R, ARIZONA_OUT1L_MUTE_SHIFT, 1, 1),
 SOC_DOUBLE_R("HPOUT2 Digital Switch", ARIZONA_DAC_DIGITAL_VOLUME_2L,
@@ -293,18 +280,6 @@ SOC_DOUBLE_R_TLV("SPKDAT2 Digital Volume", ARIZONA_DAC_DIGITAL_VOLUME_6L,
 		 ARIZONA_DAC_DIGITAL_VOLUME_6R, ARIZONA_OUT6L_VOL_SHIFT,
 		 0xbf, 0, digital_tlv),
 
-SOC_DOUBLE_R_RANGE_TLV("HPOUT1 Volume", ARIZONA_OUTPUT_PATH_CONFIG_1L,
-		       ARIZONA_OUTPUT_PATH_CONFIG_1R,
-		       ARIZONA_OUT1L_PGA_VOL_SHIFT,
-		       0x34, 0x40, 0, ana_tlv),
-SOC_DOUBLE_R_RANGE_TLV("HPOUT2 Volume", ARIZONA_OUTPUT_PATH_CONFIG_2L,
-		       ARIZONA_OUTPUT_PATH_CONFIG_2R,
-		       ARIZONA_OUT2L_PGA_VOL_SHIFT,
-		       0x34, 0x40, 0, ana_tlv),
-SOC_DOUBLE_R_RANGE_TLV("HPOUT3 Volume", ARIZONA_OUTPUT_PATH_CONFIG_3L,
-		       ARIZONA_OUTPUT_PATH_CONFIG_3R,
-		       ARIZONA_OUT3L_PGA_VOL_SHIFT, 0x34, 0x40, 0, ana_tlv),
-
 SOC_DOUBLE("SPKDAT1 Switch", ARIZONA_PDM_SPK1_CTRL_1, ARIZONA_SPK1L_MUTE_SHIFT,
 	   ARIZONA_SPK1R_MUTE_SHIFT, 1, 1),
 SOC_DOUBLE("SPKDAT2 Switch", ARIZONA_PDM_SPK2_CTRL_1, ARIZONA_SPK2L_MUTE_SHIFT,
-- 
cgit 


From 17b6c19b34b43a6a8dd5936b3cdbc63d7d1ae186 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Wed, 27 Nov 2013 09:58:17 +0100
Subject: ASoC: pcm: Fix rate_max calculation

In order to make sure that the sample rate is in the supported range of both
components the maximum rate of the card should be the minimum of the maximum
rate of each components. There is one special case to consider though, if
max_rate is set to 0 this means there is no maximum specified, so use
min_not_zero() macro which will give use the desired result.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Takashi iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/soc-pcm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 42782c01e413..9441e17d1147 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -153,7 +153,7 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_hardware *hw,
 	struct snd_soc_pcm_stream *cpu_stream)
 {
 	hw->rate_min = max(codec_stream->rate_min, cpu_stream->rate_min);
-	hw->rate_max = max(codec_stream->rate_max, cpu_stream->rate_max);
+	hw->rate_max = min_not_zero(codec_stream->rate_max, cpu_stream->rate_max);
 	hw->channels_min = max(codec_stream->channels_min,
 		cpu_stream->channels_min);
 	hw->channels_max = min(codec_stream->channels_max,
-- 
cgit 


From 78e45c99f6d470e6069c8669ee533c97cc5fd296 Mon Sep 17 00:00:00 2001
From: Lars-Peter Clausen <lars@metafoo.de>
Date: Wed, 27 Nov 2013 09:58:18 +0100
Subject: ASoC: pcm: Always honor DAI min and max sample rate constraints

snd_pcm_limit_hw_rates() will initialize the minimum and maximum sample rate for
the PCM stream based on the rates specified in the rates field. Since we call
snd_pcm_limit_hw_rates() after soc_pcm_init_runtime_hw() it will essentially
overwrite the min and max rate set in soc_pcm_init_runtime_hw(). This may cause
the minimum or maximum rate to be set to a value outside the range of one of the
components if one of the components sets either SNDRV_PCM_RATE_CONTINUOUS or
SNDRV_PCM_RATE_KNOT and the other component specified a discrete rate via
SNDRV_PCM_RATE_[0-9]* that is outside of the first component's rate range. To
fix this first calculate the minimum and maximum rates using
snd_pcm_limit_hw_rates() and then on top of that apply the contraints specified
in the snd_soc_pcm_stream structs.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Takashi iwai <tiwai@suse.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/soc-pcm.c | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index 9441e17d1147..11a90cd027fa 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -148,12 +148,12 @@ static void soc_pcm_apply_msb(struct snd_pcm_substream *substream,
 	}
 }
 
-static void soc_pcm_init_runtime_hw(struct snd_pcm_hardware *hw,
+static void soc_pcm_init_runtime_hw(struct snd_pcm_runtime *runtime,
 	struct snd_soc_pcm_stream *codec_stream,
 	struct snd_soc_pcm_stream *cpu_stream)
 {
-	hw->rate_min = max(codec_stream->rate_min, cpu_stream->rate_min);
-	hw->rate_max = min_not_zero(codec_stream->rate_max, cpu_stream->rate_max);
+	struct snd_pcm_hardware *hw = &runtime->hw;
+
 	hw->channels_min = max(codec_stream->channels_min,
 		cpu_stream->channels_min);
 	hw->channels_max = min(codec_stream->channels_max,
@@ -166,6 +166,13 @@ static void soc_pcm_init_runtime_hw(struct snd_pcm_hardware *hw,
 	if (cpu_stream->rates
 		& (SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_CONTINUOUS))
 		hw->rates |= codec_stream->rates;
+
+	snd_pcm_limit_hw_rates(runtime);
+
+	hw->rate_min = max(hw->rate_min, cpu_stream->rate_min);
+	hw->rate_min = max(hw->rate_min, codec_stream->rate_min);
+	hw->rate_max = min_not_zero(hw->rate_max, cpu_stream->rate_max);
+	hw->rate_max = min_not_zero(hw->rate_max, codec_stream->rate_max);
 }
 
 /*
@@ -235,15 +242,14 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 
 	/* Check that the codec and cpu DAIs are compatible */
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		soc_pcm_init_runtime_hw(&runtime->hw, &codec_dai_drv->playback,
+		soc_pcm_init_runtime_hw(runtime, &codec_dai_drv->playback,
 			&cpu_dai_drv->playback);
 	} else {
-		soc_pcm_init_runtime_hw(&runtime->hw, &codec_dai_drv->capture,
+		soc_pcm_init_runtime_hw(runtime, &codec_dai_drv->capture,
 			&cpu_dai_drv->capture);
 	}
 
 	ret = -EINVAL;
-	snd_pcm_limit_hw_rates(runtime);
 	if (!runtime->hw.rates) {
 		printk(KERN_ERR "ASoC: %s <-> %s No matching rates\n",
 			codec_dai->name, cpu_dai->name);
-- 
cgit 


From 1c195ddb1de14ff9a6327c47f88428200f7c8d88 Mon Sep 17 00:00:00 2001
From: Jean-Francois Moine <moinejf@free.fr>
Date: Tue, 26 Nov 2013 10:41:40 +0100
Subject: ASoC: kirkwood: Fix invalid S/PDIF format

This patch removes the 32 bits format which is not supported by S/PDIF
output.

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/kirkwood/kirkwood-i2s.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/sound/soc/kirkwood/kirkwood-i2s.c b/sound/soc/kirkwood/kirkwood-i2s.c
index d34d91743e3f..b42492d87221 100644
--- a/sound/soc/kirkwood/kirkwood-i2s.c
+++ b/sound/soc/kirkwood/kirkwood-i2s.c
@@ -33,6 +33,10 @@
 	 SNDRV_PCM_FMTBIT_S24_LE | \
 	 SNDRV_PCM_FMTBIT_S32_LE)
 
+#define KIRKWOOD_SPDIF_FORMATS \
+	(SNDRV_PCM_FMTBIT_S16_LE | \
+	 SNDRV_PCM_FMTBIT_S24_LE)
+
 static int kirkwood_i2s_set_fmt(struct snd_soc_dai *cpu_dai,
 		unsigned int fmt)
 {
@@ -449,14 +453,14 @@ static struct snd_soc_dai_driver kirkwood_i2s_dai[2] = {
 		.channels_max = 2,
 		.rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
 				SNDRV_PCM_RATE_96000,
-		.formats = KIRKWOOD_I2S_FORMATS,
+		.formats = KIRKWOOD_SPDIF_FORMATS,
 	},
 	.capture = {
 		.channels_min = 1,
 		.channels_max = 2,
 		.rates = SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |
 				SNDRV_PCM_RATE_96000,
-		.formats = KIRKWOOD_I2S_FORMATS,
+		.formats = KIRKWOOD_SPDIF_FORMATS,
 	},
 	.ops = &kirkwood_i2s_dai_ops,
     },
@@ -493,7 +497,7 @@ static struct snd_soc_dai_driver kirkwood_i2s_dai_extclk[2] = {
 		.rates = SNDRV_PCM_RATE_8000_192000 |
 			 SNDRV_PCM_RATE_CONTINUOUS |
 			 SNDRV_PCM_RATE_KNOT,
-		.formats = KIRKWOOD_I2S_FORMATS,
+		.formats = KIRKWOOD_SPDIF_FORMATS,
 	},
 	.capture = {
 		.channels_min = 1,
@@ -501,7 +505,7 @@ static struct snd_soc_dai_driver kirkwood_i2s_dai_extclk[2] = {
 		.rates = SNDRV_PCM_RATE_8000_192000 |
 			 SNDRV_PCM_RATE_CONTINUOUS |
 			 SNDRV_PCM_RATE_KNOT,
-		.formats = KIRKWOOD_I2S_FORMATS,
+		.formats = KIRKWOOD_SPDIF_FORMATS,
 	},
 	.ops = &kirkwood_i2s_dai_ops,
     },
-- 
cgit 


From 4f6f1478c1ada4524e9ed21190b4549233a816a3 Mon Sep 17 00:00:00 2001
From: Jean-Francois Moine <moinejf@free.fr>
Date: Mon, 25 Nov 2013 20:19:05 +0100
Subject: ASoC: kirkwood: Fix erroneous double output while playing

This patch fixes the setting of the register KIRKWOOD_PLAYCTL which did
always streaming on both I2S and SPDIF, ignoring the DAI ID.

The bug was introduced by the commit 75b9b65ee5a
 "ASoC: kirkwood: add S/PDIF support"

Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/kirkwood/kirkwood-i2s.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/sound/soc/kirkwood/kirkwood-i2s.c b/sound/soc/kirkwood/kirkwood-i2s.c
index b42492d87221..0b18f654b413 100644
--- a/sound/soc/kirkwood/kirkwood-i2s.c
+++ b/sound/soc/kirkwood/kirkwood-i2s.c
@@ -248,15 +248,15 @@ static int kirkwood_i2s_play_trigger(struct snd_pcm_substream *substream,
 				   ctl);
 	}
 
-	if (dai->id == 0)
-		ctl &= ~KIRKWOOD_PLAYCTL_SPDIF_EN;	/* i2s */
-	else
-		ctl &= ~KIRKWOOD_PLAYCTL_I2S_EN;	/* spdif */
-
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
 		/* configure */
 		ctl = priv->ctl_play;
+		if (dai->id == 0)
+			ctl &= ~KIRKWOOD_PLAYCTL_SPDIF_EN;	/* i2s */
+		else
+			ctl &= ~KIRKWOOD_PLAYCTL_I2S_EN;	/* spdif */
+
 		value = ctl & ~KIRKWOOD_PLAYCTL_ENABLE_MASK;
 		writel(value, priv->io + KIRKWOOD_PLAYCTL);
 
-- 
cgit 


From 930ba4a374b96560ef9fde2145cdc454a164ddcc Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 27 Nov 2013 09:32:49 -0800
Subject: Staging: tidspbridge: disable driver

There seems to be no active maintainer for the driver, and there is an
unfixed security bug, so disable the driver for now.

Hopefully someone steps up to be the maintainer, and works to get this
out of staging, otherwise it will be deleted soon.

Reported-by: Nico Golde <nico@ngolde.de>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Omar Ramirez Luna <omar.ramirez@copitl.com>
Cc: Omar Ramirez Luna <omar.ramirez@ti.com>
Cc: Kanigeri, Hari <h-kanigeri2@ti.com>
Cc: Ameya Palande <ameya.palande@nokia.com>
Cc: Guzman Lugo, Fernando <fernando.lugo@ti.com>
Cc: Hebbar, Shivananda <x0hebbar@ti.com>
Cc: Ramos Falcon, Ernesto <ernesto@ti.com>
Cc: Felipe Contreras <felipe.contreras@gmail.com>
Cc: Anna, Suman <s-anna@ti.com>
Cc: Gupta, Ramesh <grgupta@ti.com>
Cc: Gomez Castellanos, Ivan <ivan.gomez@ti.com>
Cc: Andy Shevchenko <ext-andriy.shevchenko@nokia.com>
Cc: Armando Uribe De Leon <x0095078@ti.com>
Cc: Deepak Chitriki <deepak.chitriki@ti.com>
Cc: Menon, Nishanth <nm@ti.com>
Cc: Phil Carmody <ext-phil.2.carmody@nokia.com>
Cc: Ohad Ben-Cohen <ohad@wizery.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/tidspbridge/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/tidspbridge/Kconfig b/drivers/staging/tidspbridge/Kconfig
index 165b918b8171..1b6d581c438b 100644
--- a/drivers/staging/tidspbridge/Kconfig
+++ b/drivers/staging/tidspbridge/Kconfig
@@ -4,7 +4,7 @@
 
 menuconfig TIDSPBRIDGE
 	tristate "DSP Bridge driver"
-	depends on ARCH_OMAP3 && !ARCH_MULTIPLATFORM
+	depends on ARCH_OMAP3 && !ARCH_MULTIPLATFORM && BROKEN
 	select MAILBOX
 	select OMAP2PLUS_MBOX
 	help
-- 
cgit 


From 81440e73744446adbe5b5d1f19460203d275028f Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Wed, 27 Nov 2013 09:44:55 -0800
Subject: Revert "sysfs: handle duplicate removal attempts in
 sysfs_remove_group()"

This reverts commit 54d71145a4548330313ca664a4a009772fe8b7dd.

The root cause of these "inverted" sysfs removals have now been found,
so there is no need for this patch.  Keep this functionality around so
that this type of error doesn't show up in driver code again.

Cc: Mika Westerberg <mika.westerberg@linux.intel.com>
Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/sysfs/group.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/fs/sysfs/group.c b/fs/sysfs/group.c
index 3796afdff40c..1898a10e38ce 100644
--- a/fs/sysfs/group.c
+++ b/fs/sysfs/group.c
@@ -206,15 +206,6 @@ void sysfs_remove_group(struct kobject *kobj,
 	struct sysfs_dirent *dir_sd = kobj->sd;
 	struct sysfs_dirent *sd;
 
-	/*
-	 * Sysfs directories are now removed recursively by
-	 * sysfs_remove_dir(). This means that the function can be called
-	 * for a group whose sysfs entry is already removed. In that case
-	 * all its groups are guaranteed to be already removed.
-	 */
-	if (dir_sd->s_flags & SYSFS_FLAG_REMOVED)
-		return;
-
 	if (grp->name) {
 		sd = sysfs_get_dirent(dir_sd, grp->name);
 		if (!sd) {
-- 
cgit 


From 40b13ca8dcac6227109d9df1232787d2ba98052e Mon Sep 17 00:00:00 2001
From: Victor Kamensky <victor.kamensky@linaro.org>
Date: Wed, 27 Nov 2013 15:48:08 +0200
Subject: i2c: omap: raw read and write endian fix

All OMAP IP blocks expect LE data, but CPU may operate in BE mode.
Need to use endian neutral functions to read/write h/w registers.
I.e instead of __raw_read[lw] and __raw_write[lw] functions code
need to use read[lw]_relaxed and write[lw]_relaxed functions.
If the first simply reads/writes register, the second will byteswap
it if host operates in BE mode.

Changes are trivial sed like replacement of __raw_xxx functions
with xxx_relaxed variant.

Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Signed-off-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-omap.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index a6a891d7970d..a61cbcc9645a 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -266,13 +266,13 @@ static const u8 reg_map_ip_v2[] = {
 static inline void omap_i2c_write_reg(struct omap_i2c_dev *i2c_dev,
 				      int reg, u16 val)
 {
-	__raw_writew(val, i2c_dev->base +
+	writew_relaxed(val, i2c_dev->base +
 			(i2c_dev->regs[reg] << i2c_dev->reg_shift));
 }
 
 static inline u16 omap_i2c_read_reg(struct omap_i2c_dev *i2c_dev, int reg)
 {
-	return __raw_readw(i2c_dev->base +
+	return readw_relaxed(i2c_dev->base +
 				(i2c_dev->regs[reg] << i2c_dev->reg_shift));
 }
 
@@ -1140,9 +1140,9 @@ omap_i2c_probe(struct platform_device *pdev)
 	 * Read the Rev hi bit-[15:14] ie scheme this is 1 indicates ver2.
 	 * On omap1/3/2 Offset 4 is IE Reg the bit [15:14] is 0 at reset.
 	 * Also since the omap_i2c_read_reg uses reg_map_ip_* a
-	 * raw_readw is done.
+	 * readw_relaxed is done.
 	 */
-	rev = __raw_readw(dev->base + 0x04);
+	rev = readw_relaxed(dev->base + 0x04);
 
 	dev->scheme = OMAP_I2C_SCHEME(rev);
 	switch (dev->scheme) {
-- 
cgit 


From 0fc0287c9ed1ffd3706f8b4d9b314aa102ef1245 Mon Sep 17 00:00:00 2001
From: Peter Zijlstra <peterz@infradead.org>
Date: Tue, 26 Nov 2013 15:03:41 +0100
Subject: cpuset: Fix memory allocator deadlock

Juri hit the below lockdep report:

[    4.303391] ======================================================
[    4.303392] [ INFO: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected ]
[    4.303394] 3.12.0-dl-peterz+ #144 Not tainted
[    4.303395] ------------------------------------------------------
[    4.303397] kworker/u4:3/689 [HC0[0]:SC0[0]:HE0:SE1] is trying to acquire:
[    4.303399]  (&p->mems_allowed_seq){+.+...}, at: [<ffffffff8114e63c>] new_slab+0x6c/0x290
[    4.303417]
[    4.303417] and this task is already holding:
[    4.303418]  (&(&q->__queue_lock)->rlock){..-...}, at: [<ffffffff812d2dfb>] blk_execute_rq_nowait+0x5b/0x100
[    4.303431] which would create a new lock dependency:
[    4.303432]  (&(&q->__queue_lock)->rlock){..-...} -> (&p->mems_allowed_seq){+.+...}
[    4.303436]

[    4.303898] the dependencies between the lock to be acquired and SOFTIRQ-irq-unsafe lock:
[    4.303918] -> (&p->mems_allowed_seq){+.+...} ops: 2762 {
[    4.303922]    HARDIRQ-ON-W at:
[    4.303923]                     [<ffffffff8108ab9a>] __lock_acquire+0x65a/0x1ff0
[    4.303926]                     [<ffffffff8108cbe3>] lock_acquire+0x93/0x140
[    4.303929]                     [<ffffffff81063dd6>] kthreadd+0x86/0x180
[    4.303931]                     [<ffffffff816ded6c>] ret_from_fork+0x7c/0xb0
[    4.303933]    SOFTIRQ-ON-W at:
[    4.303933]                     [<ffffffff8108abcc>] __lock_acquire+0x68c/0x1ff0
[    4.303935]                     [<ffffffff8108cbe3>] lock_acquire+0x93/0x140
[    4.303940]                     [<ffffffff81063dd6>] kthreadd+0x86/0x180
[    4.303955]                     [<ffffffff816ded6c>] ret_from_fork+0x7c/0xb0
[    4.303959]    INITIAL USE at:
[    4.303960]                    [<ffffffff8108a884>] __lock_acquire+0x344/0x1ff0
[    4.303963]                    [<ffffffff8108cbe3>] lock_acquire+0x93/0x140
[    4.303966]                    [<ffffffff81063dd6>] kthreadd+0x86/0x180
[    4.303969]                    [<ffffffff816ded6c>] ret_from_fork+0x7c/0xb0
[    4.303972]  }

Which reports that we take mems_allowed_seq with interrupts enabled. A
little digging found that this can only be from
cpuset_change_task_nodemask().

This is an actual deadlock because an interrupt doing an allocation will
hit get_mems_allowed()->...->__read_seqcount_begin(), which will spin
forever waiting for the write side to complete.

Cc: John Stultz <john.stultz@linaro.org>
Cc: Mel Gorman <mgorman@suse.de>
Reported-by: Juri Lelli <juri.lelli@gmail.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Tested-by: Juri Lelli <juri.lelli@gmail.com>
Acked-by: Li Zefan <lizefan@huawei.com>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
---
 kernel/cpuset.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 6bf981e13c43..4772034b4b17 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -1033,8 +1033,10 @@ static void cpuset_change_task_nodemask(struct task_struct *tsk,
 	need_loop = task_has_mempolicy(tsk) ||
 			!nodes_intersects(*newmems, tsk->mems_allowed);
 
-	if (need_loop)
+	if (need_loop) {
+		local_irq_disable();
 		write_seqcount_begin(&tsk->mems_allowed_seq);
+	}
 
 	nodes_or(tsk->mems_allowed, tsk->mems_allowed, *newmems);
 	mpol_rebind_task(tsk, newmems, MPOL_REBIND_STEP1);
@@ -1042,8 +1044,10 @@ static void cpuset_change_task_nodemask(struct task_struct *tsk,
 	mpol_rebind_task(tsk, newmems, MPOL_REBIND_STEP2);
 	tsk->mems_allowed = *newmems;
 
-	if (need_loop)
+	if (need_loop) {
 		write_seqcount_end(&tsk->mems_allowed_seq);
+		local_irq_enable();
+	}
 
 	task_unlock(tsk);
 }
-- 
cgit 


From c5700766975c69d27150256444db63fbfd103791 Mon Sep 17 00:00:00 2001
From: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Date: Mon, 25 Nov 2013 13:19:01 +0100
Subject: ATA: Fix port removal ordering

After commit bcdde7e221a8 (sysfs: make __sysfs_remove_dir() recursive)
Mika Westerberg sees traces analogous to the one below in Thunderbolt
hot-remove testing:

 WARNING: CPU: 0 PID: 4 at fs/sysfs/group.c:214 sysfs_remove_group+0xc6/0xd0()
 sysfs group ffffffff81c6f1e0 not found for kobject 'host7'
 Modules linked in:
 CPU: 0 PID: 4 Comm: kworker/0:0 Not tainted 3.12.0+ #13
 Hardware name:                  /D33217CK, BIOS GKPPT10H.86A.0042.2013.0422.1439 04/22/2013
 Workqueue: kacpi_hotplug acpi_hotplug_work_fn
  0000000000000009 ffff8801002459b0 ffffffff817daab1 ffff8801002459f8
  ffff8801002459e8 ffffffff810436b8 0000000000000000 ffffffff81c6f1e0
  ffff88006d440358 ffff88006d440188 ffff88006e8b4c28 ffff880100245a48
 Call Trace:
  [<ffffffff817daab1>] dump_stack+0x45/0x56
  [<ffffffff810436b8>] warn_slowpath_common+0x78/0xa0
  [<ffffffff81043727>] warn_slowpath_fmt+0x47/0x50
  [<ffffffff811ad319>] ? sysfs_get_dirent_ns+0x49/0x70
  [<ffffffff811ae526>] sysfs_remove_group+0xc6/0xd0
  [<ffffffff81432f7e>] dpm_sysfs_remove+0x3e/0x50
  [<ffffffff8142a0d0>] device_del+0x40/0x1b0
  [<ffffffff8142a24d>] device_unregister+0xd/0x20
  [<ffffffff8144131a>] scsi_remove_host+0xba/0x110
  [<ffffffff8145f526>] ata_host_detach+0xc6/0x100
  [<ffffffff8145f578>] ata_pci_remove_one+0x18/0x20
  [<ffffffff812e8f48>] pci_device_remove+0x28/0x60
  [<ffffffff8142d854>] __device_release_driver+0x64/0xd0
  [<ffffffff8142d8de>] device_release_driver+0x1e/0x30
  [<ffffffff8142d257>] bus_remove_device+0xf7/0x140
  [<ffffffff8142a1b1>] device_del+0x121/0x1b0
  [<ffffffff812e43d4>] pci_stop_bus_device+0x94/0xa0
  [<ffffffff812e437b>] pci_stop_bus_device+0x3b/0xa0
  [<ffffffff812e437b>] pci_stop_bus_device+0x3b/0xa0
  [<ffffffff812e44dd>] pci_stop_and_remove_bus_device+0xd/0x20
  [<ffffffff812fc743>] trim_stale_devices+0x73/0xe0
  [<ffffffff812fc78b>] trim_stale_devices+0xbb/0xe0
  [<ffffffff812fc78b>] trim_stale_devices+0xbb/0xe0
  [<ffffffff812fcb6e>] acpiphp_check_bridge+0x7e/0xd0
  [<ffffffff812fd90d>] hotplug_event+0xcd/0x160
  [<ffffffff812fd9c5>] hotplug_event_work+0x25/0x60
  [<ffffffff81316749>] acpi_hotplug_work_fn+0x17/0x22
  [<ffffffff8105cf3a>] process_one_work+0x17a/0x430
  [<ffffffff8105db29>] worker_thread+0x119/0x390
  [<ffffffff8105da10>] ? manage_workers.isra.25+0x2a0/0x2a0
  [<ffffffff81063a5d>] kthread+0xcd/0xf0
  [<ffffffff81063990>] ? kthread_create_on_node+0x180/0x180
  [<ffffffff817eb33c>] ret_from_fork+0x7c/0xb0
  [<ffffffff81063990>] ? kthread_create_on_node+0x180/0x180

The source of this problem is that SCSI hosts are removed from
ATA ports after calling ata_tport_delete() which removes the
port's sysfs directory, among other things.  Now, after commit
bcdde7e221a8, the sysfs directory is removed along with all of
its subdirectories that include the SCSI host's sysfs directory
and its subdirectories at this point.  Consequently, when
device_del() is finally called for any child device of the SCSI
host and tries to remove its "power" group (which is already
gone then), it triggers the above warning.

To make the warnings go away, change the removal ordering in
ata_port_detach() so that the SCSI host is removed from the
port before ata_tport_delete() is called.

References: https://bugzilla.kernel.org/show_bug.cgi?id=65281
Reported-and-tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
---
 drivers/ata/libata-core.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 81a94a3919db..75b93678bbcd 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -6304,10 +6304,9 @@ static void ata_port_detach(struct ata_port *ap)
 		for (i = 0; i < SATA_PMP_MAX_PORTS; i++)
 			ata_tlink_delete(&ap->pmp_link[i]);
 	}
-	ata_tport_delete(ap);
-
 	/* remove the associated SCSI host */
 	scsi_remove_host(ap->scsi_host);
+	ata_tport_delete(ap);
 }
 
 /**
-- 
cgit 


From e605b36575e896edd8161534550c9ea021b03bc0 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Wed, 27 Nov 2013 18:16:21 -0500
Subject: cgroup: fix cgroup_subsys_state leak for seq_files

If a cgroup file implements either read_map() or read_seq_string(),
such file is served using seq_file by overriding file->f_op to
cgroup_seqfile_operations, which also overrides the release method to
single_release() from cgroup_file_release().

Because cgroup_file_open() didn't use to acquire any resources, this
used to be fine, but since f7d58818ba42 ("cgroup: pin
cgroup_subsys_state when opening a cgroupfs file"), cgroup_file_open()
pins the css (cgroup_subsys_state) which is put by
cgroup_file_release().  The patch forgot to update the release path
for seq_files and each open/release cycle leaks a css reference.

Fix it by updating cgroup_file_release() to also handle seq_files and
using it for seq_file release path too.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org # v3.12
---
 kernel/cgroup.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index a7b98ee35ef7..8b729c278b64 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -199,6 +199,7 @@ static void cgroup_destroy_css_killed(struct cgroup *cgrp);
 static int cgroup_destroy_locked(struct cgroup *cgrp);
 static int cgroup_addrm_files(struct cgroup *cgrp, struct cftype cfts[],
 			      bool is_add);
+static int cgroup_file_release(struct inode *inode, struct file *file);
 
 /**
  * cgroup_css - obtain a cgroup's css for the specified subsystem
@@ -2429,7 +2430,7 @@ static const struct file_operations cgroup_seqfile_operations = {
 	.read = seq_read,
 	.write = cgroup_file_write,
 	.llseek = seq_lseek,
-	.release = single_release,
+	.release = cgroup_file_release,
 };
 
 static int cgroup_file_open(struct inode *inode, struct file *file)
@@ -2490,6 +2491,8 @@ static int cgroup_file_release(struct inode *inode, struct file *file)
 		ret = cft->release(inode, file);
 	if (css->ss)
 		css_put(css);
+	if (file->f_op == &cgroup_seqfile_operations)
+		single_release(inode, file);
 	return ret;
 }
 
-- 
cgit 


From 0c775d5208284700de423e6746259da54a42e1f5 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Mon, 25 Nov 2013 11:12:43 +1100
Subject: md/raid5: fix new memory-reference bug in alloc_thread_groups.

In alloc_thread_groups, worker_groups is a pointer to an array,
not an array of pointers.
So
   worker_groups[i]
is wrong.  It should be
   &(*worker_groups)[i]

Found-by: coverity
Fixes: 60aaf9338545
Reported-by: Ben Hutchings <bhutchings@solarflare.com>
Cc: majianpeng <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid5.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 47da0af6322b..676d8b7c5117 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -5471,7 +5471,7 @@ static int alloc_thread_groups(struct r5conf *conf, int cnt,
 	for (i = 0; i < *group_cnt; i++) {
 		struct r5worker_group *group;
 
-		group = worker_groups[i];
+		group = &(*worker_groups)[i];
 		INIT_LIST_HEAD(&group->handle_list);
 		group->conf = conf;
 		group->workers = workers + i * cnt;
-- 
cgit 


From 142d44c310819e1965ca70b4d55d7679f5797e25 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Thu, 28 Nov 2013 10:34:18 +1100
Subject: md: test mddev->flags more safely in md_check_recovery.

commit 7a0a5355cbc71efa md: Don't test all of mddev->flags at once.
made most tests on mddev->flags safer, but missed one.

When
commit 260fa034ef7a4ff8b7306 md: avoid deadlock when dirty buffers during md_stop.
added MD_STILL_CLOSED, this caused md_check_recovery to misbehave.
It can think there is something to do but find nothing.  This can
lead to the md thread spinning during array shutdown.

https://bugzilla.kernel.org/show_bug.cgi?id=65721

Reported-and-tested-by: Richard W.M. Jones <rjones@redhat.com>
Fixes: 260fa034ef7a4ff8b7306
Cc: stable@vger.kernel.org (3.12)
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/md.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index b6b7a2866c9e..e60cebf3f519 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -7777,7 +7777,7 @@ void md_check_recovery(struct mddev *mddev)
 	if (mddev->ro && !test_bit(MD_RECOVERY_NEEDED, &mddev->recovery))
 		return;
 	if ( ! (
-		(mddev->flags & ~ (1<<MD_CHANGE_PENDING)) ||
+		(mddev->flags & MD_UPDATE_SB_FLAGS & ~ (1<<MD_CHANGE_PENDING)) ||
 		test_bit(MD_RECOVERY_NEEDED, &mddev->recovery) ||
 		test_bit(MD_RECOVERY_DONE, &mddev->recovery) ||
 		(mddev->external == 0 && mddev->safemode == 1) ||
-- 
cgit 


From 6d183de4077191d1201283a9035ce57a9b05254d Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Thu, 28 Nov 2013 10:55:27 +1100
Subject: md/raid5: fix newly-broken locking in get_active_stripe.

commit 566c09c53455d7c4f1 raid5: relieve lock contention in get_active_stripe()

modified the locking in get_active_stripe() reducing the range
protected by the (highly contended) device_lock.
Unfortunately it reduced the range too much opening up some races.

One race can occur if get_priority_stripe runs between the
test on sh->count and device_lock being taken.
This will mean that sh->lru is not empty while get_active_stripe
thinks ->count is zero resulting in a 'BUG' firing.

Another race happens if __release_stripe is called immediately
after sh->count is tested and found to be non-zero.  If STRIPE_HANDLE
is not set, get_active_stripe should increment ->active_stripes
when it increments ->count from 0, but as it didn't think it was 0,
it doesn't.

Extending device_lock to cover the test on sh->count close these
races.

While we are here, fix the two BUG tests:
 -If count is zero, then lru really must not be empty, or we've
  lock the stripe_head somehow - no other tests are relevant.
 -STRIPE_ON_RELEASE_LIST is completely independent of ->lru so
  testing it is pointless.

Reported-and-tested-by: Brassow Jonathan <jbrassow@redhat.com>
Reviewed-by: Shaohua Li <shli@kernel.org>
Fixes: 566c09c53455d7c4f1
Signed-off-by: NeilBrown <neilb@suse.de>
---
 drivers/md/raid5.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 676d8b7c5117..cc055da02e2a 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -678,26 +678,23 @@ get_active_stripe(struct r5conf *conf, sector_t sector,
 			} else
 				init_stripe(sh, sector, previous);
 		} else {
+			spin_lock(&conf->device_lock);
 			if (atomic_read(&sh->count)) {
 				BUG_ON(!list_empty(&sh->lru)
 				    && !test_bit(STRIPE_EXPANDING, &sh->state)
 				    && !test_bit(STRIPE_ON_UNPLUG_LIST, &sh->state)
-				    && !test_bit(STRIPE_ON_RELEASE_LIST, &sh->state));
+					);
 			} else {
-				spin_lock(&conf->device_lock);
 				if (!test_bit(STRIPE_HANDLE, &sh->state))
 					atomic_inc(&conf->active_stripes);
-				if (list_empty(&sh->lru) &&
-				    !test_bit(STRIPE_ON_RELEASE_LIST, &sh->state) &&
-				    !test_bit(STRIPE_EXPANDING, &sh->state))
-					BUG();
+				BUG_ON(list_empty(&sh->lru));
 				list_del_init(&sh->lru);
 				if (sh->group) {
 					sh->group->stripes_cnt--;
 					sh->group = NULL;
 				}
-				spin_unlock(&conf->device_lock);
 			}
+			spin_unlock(&conf->device_lock);
 		}
 	} while (sh == NULL);
 
-- 
cgit 


From dad337501d490b26fbf8d83baee99c788461c61c Mon Sep 17 00:00:00 2001
From: Dave Jones <davej@redhat.com>
Date: Wed, 27 Nov 2013 15:15:57 -0500
Subject: remove obsolete references to powertweak

This tool hasn't been maintained in over a decade, and is pretty much
useless these days.  Let's pretend it never happened.

Also remove a long-dead email address.

Signed-off-by: Dave Jones <davej@fedoraproject.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Documentation/Changes | 11 -----------
 drivers/pci/quirks.c  |  4 ----
 fs/affs/Changes       |  2 +-
 3 files changed, 1 insertion(+), 16 deletions(-)

diff --git a/Documentation/Changes b/Documentation/Changes
index b17580885273..07c75d18154e 100644
--- a/Documentation/Changes
+++ b/Documentation/Changes
@@ -196,13 +196,6 @@ chmod 0644 /dev/cpu/microcode
 as root before you can use this.  You'll probably also want to
 get the user-space microcode_ctl utility to use with this.
 
-Powertweak
-----------
-
-If you are running v0.1.17 or earlier, you should upgrade to
-version v0.99.0 or higher. Running old versions may cause problems
-with programs using shared memory.
-
 udev
 ----
 udev is a userspace application for populating /dev dynamically with
@@ -366,10 +359,6 @@ Intel P6 microcode
 ------------------
 o  <http://www.urbanmyth.org/microcode/>
 
-Powertweak
-----------
-o  <http://powertweak.sourceforge.net/>
-
 udev
 ----
 o <http://www.kernel.org/pub/linux/utils/kernel/hotplug/udev.html>
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
index b3b1b9aa8863..3a02717473ad 100644
--- a/drivers/pci/quirks.c
+++ b/drivers/pci/quirks.c
@@ -9,10 +9,6 @@
  *
  *  Init/reset quirks for USB host controllers should be in the
  *  USB quirks file, where their drivers can access reuse it.
- *
- *  The bridge optimization stuff has been removed. If you really
- *  have a silly BIOS which is unable to set your host bridge right,
- *  use the PowerTweak utility (see http://powertweak.sourceforge.net).
  */
 
 #include <linux/types.h>
diff --git a/fs/affs/Changes b/fs/affs/Changes
index a29409c1ffe0..b41c2c9792ff 100644
--- a/fs/affs/Changes
+++ b/fs/affs/Changes
@@ -91,7 +91,7 @@ more 2.4 fixes: [Roman Zippel]
 Version 3.11
 ------------
 
-- Converted to use 2.3.x page cache [Dave Jones <dave@powertweak.com>]
+- Converted to use 2.3.x page cache [Dave Jones]
 - Corruption in truncate() bugfix [Ken Tyler <kent@werple.net.au>]
 
 Version 3.10
-- 
cgit 


From a1f84f57f9f7a5060f17482fc26b39174ecb7a28 Mon Sep 17 00:00:00 2001
From: David Herrmann <dh.herrmann@gmail.com>
Date: Tue, 26 Nov 2013 12:50:50 +0100
Subject: drm/sysfs: fix OOM verification
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Copy/Paste typo.. we need to test for ->kdev instead of ->dev.

Reported-by: Juha Leppänen <juha_efku@dnainternet.net>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/drm_sysfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index bd2bca395792..c22c3097c3e8 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -516,7 +516,7 @@ int drm_sysfs_device_add(struct drm_minor *minor)
                 minor_str = "card%d";
 
 	minor->kdev = kzalloc(sizeof(*minor->kdev), GFP_KERNEL);
-	if (!minor->dev) {
+	if (!minor->kdev) {
 		r = -ENOMEM;
 		goto error;
 	}
-- 
cgit 


From 14058d20c155ab3ff473fb60eca4fa7aa21a16ac Mon Sep 17 00:00:00 2001
From: Will Deacon <will.deacon@arm.com>
Date: Wed, 27 Nov 2013 13:52:53 +0000
Subject: lockref: include mutex.h rather than reinvent arch_mutex_cpu_relax

arch_mutex_cpu_relax is already conditionally defined in mutex.h, so
simply include that header rather than replicate the code here.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 lib/lockref.c | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/lib/lockref.c b/lib/lockref.c
index d2b123f8456b..f07a40d33871 100644
--- a/lib/lockref.c
+++ b/lib/lockref.c
@@ -1,5 +1,6 @@
 #include <linux/export.h>
 #include <linux/lockref.h>
+#include <linux/mutex.h>
 
 #if USE_CMPXCHG_LOCKREF
 
@@ -11,14 +12,6 @@
 # define cmpxchg64_relaxed cmpxchg64
 #endif
 
-/*
- * Allow architectures to override the default cpu_relax() within CMPXCHG_LOOP.
- * This is useful for architectures with an expensive cpu_relax().
- */
-#ifndef arch_mutex_cpu_relax
-# define arch_mutex_cpu_relax() cpu_relax()
-#endif
-
 /*
  * Note that the "cmpxchg()" reloads the "old" value for the
  * failure case.
-- 
cgit 


From eec99016e38b740662509f097effb90abc7a1376 Mon Sep 17 00:00:00 2001
From: Ilia Mirkin <imirkin@alum.mit.edu>
Date: Wed, 27 Nov 2013 12:38:42 -0500
Subject: drm/nouveau/hwmon: fix compilation without CONFIG_HWMON

Reported-by: Jim Davis <jim.epost@gmail.com>
Tested-by: Jim Davis <jim.epost@gmail.com>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/nouveau/nouveau_hwmon.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_hwmon.c b/drivers/gpu/drm/nouveau/nouveau_hwmon.c
index 38a4db5bfe21..4aff04fa483c 100644
--- a/drivers/gpu/drm/nouveau/nouveau_hwmon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_hwmon.c
@@ -630,7 +630,6 @@ error:
 	hwmon->hwmon = NULL;
 	return ret;
 #else
-	hwmon->hwmon = NULL;
 	return 0;
 #endif
 }
-- 
cgit 


From 96d5d9d9e8b7925357737a49bdd1091543dde010 Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Wed, 20 Nov 2013 09:50:28 +0100
Subject: doc: fix generation of device-drivers

Since commit 7a6354e241d8 ("sched: Move wait.c into kernel/sched/"), the
path of this file has changed.

Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Andy Whitcroft <apw@canonical.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 Documentation/DocBook/device-drivers.tmpl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/DocBook/device-drivers.tmpl b/Documentation/DocBook/device-drivers.tmpl
index 6c9d9d37c83a..f5170082bdb3 100644
--- a/Documentation/DocBook/device-drivers.tmpl
+++ b/Documentation/DocBook/device-drivers.tmpl
@@ -58,7 +58,7 @@
      </sect1>
      <sect1><title>Wait queues and Wake events</title>
 !Iinclude/linux/wait.h
-!Ekernel/wait.c
+!Ekernel/sched/wait.c
      </sect1>
      <sect1><title>High-resolution timers</title>
 !Iinclude/linux/ktime.h
-- 
cgit 


From 07a27a0047274e0ba568ce86b6416c34497a99a7 Mon Sep 17 00:00:00 2001
From: Florian Meier <florian.meier@koalo.de>
Date: Mon, 25 Nov 2013 09:01:50 +0100
Subject: i2c: bcm2835: Linking platform nodes to adapter nodes

In order to find I2C devices in the device tree, the platform nodes
have to be known by the I2C core. This requires setting the
dev.of_node parameter of the adapter.

Signed-off-by: Florian Meier <florian.meier@koalo.de>
Tested-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
 drivers/i2c/busses/i2c-bcm2835.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/i2c/busses/i2c-bcm2835.c b/drivers/i2c/busses/i2c-bcm2835.c
index d7e8600f31fb..77df97b932af 100644
--- a/drivers/i2c/busses/i2c-bcm2835.c
+++ b/drivers/i2c/busses/i2c-bcm2835.c
@@ -299,6 +299,7 @@ static int bcm2835_i2c_probe(struct platform_device *pdev)
 	strlcpy(adap->name, "bcm2835 I2C adapter", sizeof(adap->name));
 	adap->algo = &bcm2835_i2c_algo;
 	adap->dev.parent = &pdev->dev;
+	adap->dev.of_node = pdev->dev.of_node;
 
 	bcm2835_i2c_writel(i2c_dev, BCM2835_I2C_C, 0);
 
-- 
cgit 


From 2ded3e5b61d61d0bc90bebb8004db6184c7db6eb Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 28 Nov 2013 11:05:28 +0100
Subject: ALSA: hda - Check leaf nodes to find aamix amps

The current generic parser assumes blindly that the volume and mute
amps are found in the aamix node itself.  But on some codecs,
typically Analog Devices ones, the aamix amps are separately
implemented in each leaf node of the aamix node, and the current
driver can't establish the correct amp controls.  This is a regression
compared with the previous static quirks.

This patch extends the search for the amps to the leaf nodes for
allowing the aamix controls again on such codecs.
In this implementation, I didn't code to loop through the whole paths,
since usually one depth should suffice, and we can't search too
deeply, as it may result in the conflicting control assignments.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=65641
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_generic.c | 57 +++++++++++++++++++++++++++++++++++----------
 1 file changed, 45 insertions(+), 12 deletions(-)

diff --git a/sound/pci/hda/hda_generic.c b/sound/pci/hda/hda_generic.c
index faefff1d3e81..c4671d00babd 100644
--- a/sound/pci/hda/hda_generic.c
+++ b/sound/pci/hda/hda_generic.c
@@ -2808,6 +2808,42 @@ static int add_loopback_list(struct hda_gen_spec *spec, hda_nid_t mix, int idx)
 	return 0;
 }
 
+/* return true if either a volume or a mute amp is found for the given
+ * aamix path; the amp has to be either in the mixer node or its direct leaf
+ */
+static bool look_for_mix_leaf_ctls(struct hda_codec *codec, hda_nid_t mix_nid,
+				   hda_nid_t pin, unsigned int *mix_val,
+				   unsigned int *mute_val)
+{
+	int idx, num_conns;
+	const hda_nid_t *list;
+	hda_nid_t nid;
+
+	idx = snd_hda_get_conn_index(codec, mix_nid, pin, true);
+	if (idx < 0)
+		return false;
+
+	*mix_val = *mute_val = 0;
+	if (nid_has_volume(codec, mix_nid, HDA_INPUT))
+		*mix_val = HDA_COMPOSE_AMP_VAL(mix_nid, 3, idx, HDA_INPUT);
+	if (nid_has_mute(codec, mix_nid, HDA_INPUT))
+		*mute_val = HDA_COMPOSE_AMP_VAL(mix_nid, 3, idx, HDA_INPUT);
+	if (*mix_val && *mute_val)
+		return true;
+
+	/* check leaf node */
+	num_conns = snd_hda_get_conn_list(codec, mix_nid, &list);
+	if (num_conns < idx)
+		return false;
+	nid = list[idx];
+	if (!*mix_val && nid_has_volume(codec, nid, HDA_OUTPUT))
+		*mix_val = HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_OUTPUT);
+	if (!*mute_val && nid_has_mute(codec, nid, HDA_OUTPUT))
+		*mute_val = HDA_COMPOSE_AMP_VAL(nid, 3, 0, HDA_OUTPUT);
+
+	return *mix_val || *mute_val;
+}
+
 /* create input playback/capture controls for the given pin */
 static int new_analog_input(struct hda_codec *codec, int input_idx,
 			    hda_nid_t pin, const char *ctlname, int ctlidx,
@@ -2815,12 +2851,11 @@ static int new_analog_input(struct hda_codec *codec, int input_idx,
 {
 	struct hda_gen_spec *spec = codec->spec;
 	struct nid_path *path;
-	unsigned int val;
+	unsigned int mix_val, mute_val;
 	int err, idx;
 
-	if (!nid_has_volume(codec, mix_nid, HDA_INPUT) &&
-	    !nid_has_mute(codec, mix_nid, HDA_INPUT))
-		return 0; /* no need for analog loopback */
+	if (!look_for_mix_leaf_ctls(codec, mix_nid, pin, &mix_val, &mute_val))
+		return 0;
 
 	path = snd_hda_add_new_path(codec, pin, mix_nid, 0);
 	if (!path)
@@ -2829,20 +2864,18 @@ static int new_analog_input(struct hda_codec *codec, int input_idx,
 	spec->loopback_paths[input_idx] = snd_hda_get_path_idx(codec, path);
 
 	idx = path->idx[path->depth - 1];
-	if (nid_has_volume(codec, mix_nid, HDA_INPUT)) {
-		val = HDA_COMPOSE_AMP_VAL(mix_nid, 3, idx, HDA_INPUT);
-		err = __add_pb_vol_ctrl(spec, HDA_CTL_WIDGET_VOL, ctlname, ctlidx, val);
+	if (mix_val) {
+		err = __add_pb_vol_ctrl(spec, HDA_CTL_WIDGET_VOL, ctlname, ctlidx, mix_val);
 		if (err < 0)
 			return err;
-		path->ctls[NID_PATH_VOL_CTL] = val;
+		path->ctls[NID_PATH_VOL_CTL] = mix_val;
 	}
 
-	if (nid_has_mute(codec, mix_nid, HDA_INPUT)) {
-		val = HDA_COMPOSE_AMP_VAL(mix_nid, 3, idx, HDA_INPUT);
-		err = __add_pb_sw_ctrl(spec, HDA_CTL_WIDGET_MUTE, ctlname, ctlidx, val);
+	if (mute_val) {
+		err = __add_pb_sw_ctrl(spec, HDA_CTL_WIDGET_MUTE, ctlname, ctlidx, mute_val);
 		if (err < 0)
 			return err;
-		path->ctls[NID_PATH_MUTE_CTL] = val;
+		path->ctls[NID_PATH_MUTE_CTL] = mute_val;
 	}
 
 	path->active = true;
-- 
cgit 


From 2cede30379f3fed3f4c83010cf08be6afcc811b9 Mon Sep 17 00:00:00 2001
From: Oleksij Rempel <linux@rempel-privat.de>
Date: Wed, 27 Nov 2013 17:12:03 +0100
Subject: ALSA: hda - limit mic boost on Asus UX31[A,E]

This both devices need limit for internal dmic.

[cosmetic change; renamed fixup name by tiwai]

Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index c4ad9d198068..3a9a1b0c1dbe 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3798,6 +3798,7 @@ enum {
 	ALC271_FIXUP_HP_GATE_MIC_JACK,
 	ALC269_FIXUP_ACER_AC700,
 	ALC269_FIXUP_LIMIT_INT_MIC_BOOST,
+	ALC269VB_FIXUP_ASUS_ZENBOOK,
 	ALC269_FIXUP_LIMIT_INT_MIC_BOOST_MUTE_LED,
 	ALC269VB_FIXUP_ORDISSIMO_EVE2,
 	ALC283_FIXUP_CHROME_BOOK,
@@ -4075,6 +4076,12 @@ static const struct hda_fixup alc269_fixups[] = {
 		.chained = true,
 		.chain_id = ALC269_FIXUP_THINKPAD_ACPI,
 	},
+	[ALC269VB_FIXUP_ASUS_ZENBOOK] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc269_fixup_limit_int_mic_boost,
+		.chained = true,
+		.chain_id = ALC269VB_FIXUP_DMIC,
+	},
 	[ALC269_FIXUP_LIMIT_INT_MIC_BOOST_MUTE_LED] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc269_fixup_limit_int_mic_boost,
@@ -4189,8 +4196,8 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1043, 0x103f, "ASUS TX300", ALC282_FIXUP_ASUS_TX300),
 	SND_PCI_QUIRK(0x1043, 0x106d, "Asus K53BE", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
 	SND_PCI_QUIRK(0x1043, 0x115d, "Asus 1015E", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
-	SND_PCI_QUIRK(0x1043, 0x1427, "Asus Zenbook UX31E", ALC269VB_FIXUP_DMIC),
-	SND_PCI_QUIRK(0x1043, 0x1517, "Asus Zenbook UX31A", ALC269VB_FIXUP_DMIC),
+	SND_PCI_QUIRK(0x1043, 0x1427, "Asus Zenbook UX31E", ALC269VB_FIXUP_ASUS_ZENBOOK),
+	SND_PCI_QUIRK(0x1043, 0x1517, "Asus Zenbook UX31A", ALC269VB_FIXUP_ASUS_ZENBOOK),
 	SND_PCI_QUIRK(0x1043, 0x16e3, "ASUS UX50", ALC269_FIXUP_STEREO_DMIC),
 	SND_PCI_QUIRK(0x1043, 0x1a13, "Asus G73Jw", ALC269_FIXUP_ASUS_G73JW),
 	SND_PCI_QUIRK(0x1043, 0x1b13, "Asus U41SV", ALC269_FIXUP_INV_DMIC),
-- 
cgit 


From c50325f7bcb8a3ceaacb9dbc41180b1cbbae7b5e Mon Sep 17 00:00:00 2001
From: "Chew, Chiau Ee" <chiau.ee.chew@intel.com>
Date: Fri, 29 Nov 2013 02:13:11 +0800
Subject: spi/pxa2xx: Restore private register bits.

The Intel LPSS SPI private register bits have to be restored
when system resume from S3 suspend.

Signed-off-by: Chew, Chiau Ee <chiau.ee.chew@intel.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 drivers/spi/spi-pxa2xx.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/spi/spi-pxa2xx.c b/drivers/spi/spi-pxa2xx.c
index 7028180a020a..7765b1999537 100644
--- a/drivers/spi/spi-pxa2xx.c
+++ b/drivers/spi/spi-pxa2xx.c
@@ -1293,6 +1293,9 @@ static int pxa2xx_spi_resume(struct device *dev)
 	/* Enable the SSP clock */
 	clk_prepare_enable(ssp->clk);
 
+	/* Restore LPSS private register bits */
+	lpss_ssp_setup(drv_data);
+
 	/* Start the queue running */
 	status = spi_master_resume(drv_data->master);
 	if (status != 0) {
-- 
cgit 


From 22e580d07f6529a395c129575127ea6d860aed3a Mon Sep 17 00:00:00 2001
From: Bockholdt Arne <a.bockholdt@precitec-optronik.de>
Date: Tue, 26 Nov 2013 07:13:57 +0000
Subject: intel_idle: Fixed C6 state on Avoton/Rangeley processors

Corrected the MWAIT flag for C-State C6 on Intel Avoton/Rangeley processors.

Signed-off-by: Arne Bockholdt <linux-kernel@bockholdt.com>
Acked-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/idle/intel_idle.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index cbd4e9abc47e..92d1206482a6 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -329,7 +329,7 @@ static struct cpuidle_state atom_cstates[] __initdata = {
 	{
 		.enter = NULL }
 };
-static struct cpuidle_state avn_cstates[CPUIDLE_STATE_MAX] = {
+static struct cpuidle_state avn_cstates[] __initdata = {
 	{
 		.name = "C1-AVN",
 		.desc = "MWAIT 0x00",
@@ -340,7 +340,7 @@ static struct cpuidle_state avn_cstates[CPUIDLE_STATE_MAX] = {
 	{
 		.name = "C6-AVN",
 		.desc = "MWAIT 0x51",
-		.flags = MWAIT2flg(0x58) | CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
+		.flags = MWAIT2flg(0x51) | CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
 		.exit_latency = 15,
 		.target_residency = 45,
 		.enter = &intel_idle },
-- 
cgit 


From 5a87182aa21d6d5d306840feab9321818dd3e2a3 Mon Sep 17 00:00:00 2001
From: Viresh Kumar <viresh.kumar@linaro.org>
Date: Wed, 27 Nov 2013 09:09:42 +0530
Subject: cpufreq: suspend governors on system suspend/hibernate

This patch adds cpufreq suspend/resume calls to dpm_{suspend|resume}_noirq()
for handling suspend/resume of cpufreq governors.

Lan Tianyu (Intel) & Jinhyuk Choi (Broadcom) found anr issue where
tunables configuration for clusters/sockets with non-boot CPUs was
getting lost after suspend/resume, as we were notifying governors
with CPUFREQ_GOV_POLICY_EXIT on removal of the last cpu for that
policy and so deallocating memory for tunables. This is fixed by
this patch as we don't allow any operation on governors after
device suspend and before device resume now.

Reported-and-tested-by: Lan Tianyu <tianyu.lan@intel.com>
Reported-by: Jinhyuk Choi <jinchoi@broadcom.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
[rjw: Changelog, minor cleanups]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/base/power/main.c |  3 +++
 drivers/cpufreq/cpufreq.c | 43 +++++++++++++++++++++++++++++++++++++++++++
 include/linux/cpufreq.h   |  8 ++++++++
 3 files changed, 54 insertions(+)

diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 9f098a82cf04..10c3510d72a9 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -29,6 +29,7 @@
 #include <linux/async.h>
 #include <linux/suspend.h>
 #include <trace/events/power.h>
+#include <linux/cpufreq.h>
 #include <linux/cpuidle.h>
 #include "../base.h"
 #include "power.h"
@@ -473,6 +474,7 @@ static void dpm_resume_noirq(pm_message_t state)
 	dpm_show_time(starttime, state, "noirq");
 	resume_device_irqs();
 	cpuidle_resume();
+	cpufreq_resume();
 }
 
 /**
@@ -885,6 +887,7 @@ static int dpm_suspend_noirq(pm_message_t state)
 	ktime_t starttime = ktime_get();
 	int error = 0;
 
+	cpufreq_suspend();
 	cpuidle_pause();
 	suspend_device_irqs();
 	mutex_lock(&dpm_list_mtx);
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 02d534da22dd..606224a8abc2 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -26,6 +26,7 @@
 #include <linux/module.h>
 #include <linux/mutex.h>
 #include <linux/slab.h>
+#include <linux/suspend.h>
 #include <linux/syscore_ops.h>
 #include <linux/tick.h>
 #include <trace/events/power.h>
@@ -47,6 +48,9 @@ static LIST_HEAD(cpufreq_policy_list);
 static DEFINE_PER_CPU(char[CPUFREQ_NAME_LEN], cpufreq_cpu_governor);
 #endif
 
+/* Flag to suspend/resume CPUFreq governors */
+static bool cpufreq_suspended;
+
 static inline bool has_target(void)
 {
 	return cpufreq_driver->target_index || cpufreq_driver->target;
@@ -1462,6 +1466,41 @@ static struct subsys_interface cpufreq_interface = {
 	.remove_dev	= cpufreq_remove_dev,
 };
 
+void cpufreq_suspend(void)
+{
+	struct cpufreq_policy *policy;
+
+	if (!has_target())
+		return;
+
+	pr_debug("%s: Suspending Governors\n", __func__);
+
+	list_for_each_entry(policy, &cpufreq_policy_list, policy_list)
+		if (__cpufreq_governor(policy, CPUFREQ_GOV_STOP))
+			pr_err("%s: Failed to stop governor for policy: %p\n",
+				__func__, policy);
+
+	cpufreq_suspended = true;
+}
+
+void cpufreq_resume(void)
+{
+	struct cpufreq_policy *policy;
+
+	if (!has_target())
+		return;
+
+	pr_debug("%s: Resuming Governors\n", __func__);
+
+	cpufreq_suspended = false;
+
+	list_for_each_entry(policy, &cpufreq_policy_list, policy_list)
+		if (__cpufreq_governor(policy, CPUFREQ_GOV_START)
+		    || __cpufreq_governor(policy, CPUFREQ_GOV_LIMITS))
+			pr_err("%s: Failed to start governor for policy: %p\n",
+				__func__, policy);
+}
+
 /**
  * cpufreq_bp_suspend - Prepare the boot CPU for system suspend.
  *
@@ -1764,6 +1803,10 @@ static int __cpufreq_governor(struct cpufreq_policy *policy,
 	struct cpufreq_governor *gov = NULL;
 #endif
 
+	/* Don't start any governor operations if we are entering suspend */
+	if (cpufreq_suspended)
+		return 0;
+
 	if (policy->governor->max_transition_latency &&
 	    policy->cpuinfo.transition_latency >
 	    policy->governor->max_transition_latency) {
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 5bd6ab9b0c27..91716658e9a1 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -272,6 +272,14 @@ cpufreq_verify_within_cpu_limits(struct cpufreq_policy *policy)
 			policy->cpuinfo.max_freq);
 }
 
+#ifdef CONFIG_CPU_FREQ
+void cpufreq_suspend(void);
+void cpufreq_resume(void);
+#else
+static inline void cpufreq_suspend(void) {}
+static inline void cpufreq_resume(void) {}
+#endif
+
 /*********************************************************************
  *                     CPUFREQ NOTIFIER INTERFACE                    *
  *********************************************************************/
-- 
cgit 


From fc019c7122dfcd69c50142b57a735539aec5da95 Mon Sep 17 00:00:00 2001
From: Tom Lendacky <thomas.lendacky@amd.com>
Date: Tue, 12 Nov 2013 11:46:04 -0600
Subject: crypto: authenc - Find proper IV address in ablkcipher callback

When performing an asynchronous ablkcipher operation the authenc
completion callback routine is invoked, but it does not locate and use
the proper IV.

The callback routine, crypto_authenc_encrypt_done, is updated to use
the same method of calculating the address of the IV as is done in
crypto_authenc_encrypt function which sets up the callback.

Cc: stable@vger.kernel.org
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/authenc.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/crypto/authenc.c b/crypto/authenc.c
index 1875e7026e8f..e1223559d5df 100644
--- a/crypto/authenc.c
+++ b/crypto/authenc.c
@@ -380,9 +380,10 @@ static void crypto_authenc_encrypt_done(struct crypto_async_request *req,
 	if (!err) {
 		struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
 		struct crypto_authenc_ctx *ctx = crypto_aead_ctx(authenc);
-		struct ablkcipher_request *abreq = aead_request_ctx(areq);
-		u8 *iv = (u8 *)(abreq + 1) +
-			 crypto_ablkcipher_reqsize(ctx->enc);
+		struct authenc_request_ctx *areq_ctx = aead_request_ctx(areq);
+		struct ablkcipher_request *abreq = (void *)(areq_ctx->tail
+							    + ctx->reqoff);
+		u8 *iv = (u8 *)abreq - crypto_ablkcipher_ivsize(ctx->enc);
 
 		err = crypto_authenc_genicv(areq, iv, 0);
 	}
-- 
cgit 


From 41da8b5adba77e22584f8b45f9641504fa885308 Mon Sep 17 00:00:00 2001
From: Tom Lendacky <thomas.lendacky@amd.com>
Date: Tue, 12 Nov 2013 11:46:10 -0600
Subject: crypto: scatterwalk - Set the chain pointer indication bit

The scatterwalk_crypto_chain function invokes the scatterwalk_sg_chain
function to chain two scatterlists, but the chain pointer indication
bit is not set.  When the resulting scatterlist is used, for example,
by sg_nents to count the number of scatterlist entries, a segfault occurs
because sg_nents does not follow the chain pointer to the chained scatterlist.

Update scatterwalk_sg_chain to set the chain pointer indication bit as is
done by the sg_chain function.

Cc: stable@vger.kernel.org
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 include/crypto/scatterwalk.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/crypto/scatterwalk.h b/include/crypto/scatterwalk.h
index 13621cc8cf4c..64ebede184f1 100644
--- a/include/crypto/scatterwalk.h
+++ b/include/crypto/scatterwalk.h
@@ -36,6 +36,7 @@ static inline void scatterwalk_sg_chain(struct scatterlist *sg1, int num,
 {
 	sg_set_page(&sg1[num - 1], (void *)sg2, 0, 0);
 	sg1[num - 1].page_link &= ~0x02;
+	sg1[num - 1].page_link |= 0x01;
 }
 
 static inline struct scatterlist *scatterwalk_sg_next(struct scatterlist *sg)
-- 
cgit 


From 1f0bbf03cb829162ec8e6d03c98aaaed88c6f534 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 28 Nov 2013 15:21:21 +0100
Subject: ALSA: hda - Initialize missing bass speaker pin for ASUS AIO ET2700

Add a fixup entry for the missing bass speaker pin 0x16 on ASUS ET2700
AiO desktop.  The channel map will be added in the next patch, so that
this can be backported easily to stable kernels.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=65961
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 3a9a1b0c1dbe..fd835c52618e 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -1782,6 +1782,7 @@ enum {
 	ALC889_FIXUP_IMAC91_VREF,
 	ALC882_FIXUP_INV_DMIC,
 	ALC882_FIXUP_NO_PRIMARY_HP,
+	ALC887_FIXUP_ASUS_BASS,
 };
 
 static void alc889_fixup_coef(struct hda_codec *codec,
@@ -2105,6 +2106,13 @@ static const struct hda_fixup alc882_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc882_fixup_no_primary_hp,
 	},
+	[ALC887_FIXUP_ASUS_BASS] = {
+		.type = HDA_FIXUP_PINS,
+		.v.pins = (const struct hda_pintbl[]) {
+			{0x16, 0x99130130}, /* bass speaker */
+			{}
+		},
+	},
 };
 
 static const struct snd_pci_quirk alc882_fixup_tbl[] = {
@@ -2138,6 +2146,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1043, 0x1873, "ASUS W90V", ALC882_FIXUP_ASUS_W90V),
 	SND_PCI_QUIRK(0x1043, 0x1971, "Asus W2JC", ALC882_FIXUP_ASUS_W2JC),
 	SND_PCI_QUIRK(0x1043, 0x835f, "Asus Eee 1601", ALC888_FIXUP_EEE1601),
+	SND_PCI_QUIRK(0x1043, 0x84bc, "ASUS ET2700", ALC887_FIXUP_ASUS_BASS),
 	SND_PCI_QUIRK(0x104d, 0x9047, "Sony Vaio TT", ALC889_FIXUP_VAIO_TT),
 	SND_PCI_QUIRK(0x104d, 0x905a, "Sony Vaio Z", ALC882_FIXUP_NO_PRIMARY_HP),
 	SND_PCI_QUIRK(0x104d, 0x9043, "Sony Vaio VGC-LN51JGB", ALC882_FIXUP_NO_PRIMARY_HP),
-- 
cgit 


From eb9ca3ab2194ad9a6c52da0e8bf1b3f1ff9cd6f4 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Thu, 28 Nov 2013 15:24:34 +0100
Subject: ALSA: hda - Add LFE chmap to ASUS ET2700

As the previous commit 1f0bbf03cb82 added the pin config for the bass
speaker, this patch adds the corresponding LFE-only channel map on
ASUS ET2700.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=65961
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index fd835c52618e..c770bdba6531 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -1783,6 +1783,7 @@ enum {
 	ALC882_FIXUP_INV_DMIC,
 	ALC882_FIXUP_NO_PRIMARY_HP,
 	ALC887_FIXUP_ASUS_BASS,
+	ALC887_FIXUP_BASS_CHMAP,
 };
 
 static void alc889_fixup_coef(struct hda_codec *codec,
@@ -1916,6 +1917,9 @@ static void alc882_fixup_no_primary_hp(struct hda_codec *codec,
 	}
 }
 
+static void alc_fixup_bass_chmap(struct hda_codec *codec,
+				 const struct hda_fixup *fix, int action);
+
 static const struct hda_fixup alc882_fixups[] = {
 	[ALC882_FIXUP_ABIT_AW9D_MAX] = {
 		.type = HDA_FIXUP_PINS,
@@ -2112,6 +2116,12 @@ static const struct hda_fixup alc882_fixups[] = {
 			{0x16, 0x99130130}, /* bass speaker */
 			{}
 		},
+		.chained = true,
+		.chain_id = ALC887_FIXUP_BASS_CHMAP,
+	},
+	[ALC887_FIXUP_BASS_CHMAP] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc_fixup_bass_chmap,
 	},
 };
 
@@ -4731,7 +4741,7 @@ static const struct snd_pcm_chmap_elem asus_pcm_2_1_chmaps[] = {
 };
 
 /* override the 2.1 chmap */
-static void alc662_fixup_bass_chmap(struct hda_codec *codec,
+static void alc_fixup_bass_chmap(struct hda_codec *codec,
 				    const struct hda_fixup *fix, int action)
 {
 	if (action == HDA_FIXUP_ACT_BUILD) {
@@ -4939,7 +4949,7 @@ static const struct hda_fixup alc662_fixups[] = {
 	},
 	[ALC662_FIXUP_BASS_CHMAP] = {
 		.type = HDA_FIXUP_FUNC,
-		.v.func = alc662_fixup_bass_chmap,
+		.v.func = alc_fixup_bass_chmap,
 		.chained = true,
 		.chain_id = ALC662_FIXUP_ASUS_MODE4
 	},
@@ -4952,7 +4962,7 @@ static const struct hda_fixup alc662_fixups[] = {
 	},
 	[ALC662_FIXUP_BASS_1A_CHMAP] = {
 		.type = HDA_FIXUP_FUNC,
-		.v.func = alc662_fixup_bass_chmap,
+		.v.func = alc_fixup_bass_chmap,
 		.chained = true,
 		.chain_id = ALC662_FIXUP_BASS_1A,
 	},
-- 
cgit 


From 935e99a3afda0a58c2eada0ff7c613d3844d738c Mon Sep 17 00:00:00 2001
From: Horia Geanta <horia.geanta@freescale.com>
Date: Tue, 19 Nov 2013 14:57:49 +0200
Subject: crypto: talitos - corrrectly handle zero-length assoc data

talitos does not handle well zero-length assoc data. From dmesg:
talitos ffe30000.crypto: master data transfer error
talitos ffe30000.crypto: gather return/length error

Check whether assoc data is provided by inspecting assoclen,
not assoc pointer.
This is needed in order to pass testmgr tests.

Signed-off-by: Horia Geanta <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/talitos.c | 21 ++++++++++++++++-----
 1 file changed, 16 insertions(+), 5 deletions(-)

diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 905de4427e7c..81ab42cd14b2 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -790,7 +790,7 @@ static void ipsec_esp_unmap(struct device *dev,
 
 	if (edesc->assoc_chained)
 		talitos_unmap_sg_chain(dev, areq->assoc, DMA_TO_DEVICE);
-	else
+	else if (areq->assoclen)
 		/* assoc_nents counts also for IV in non-contiguous cases */
 		dma_unmap_sg(dev, areq->assoc,
 			     edesc->assoc_nents ? edesc->assoc_nents - 1 : 1,
@@ -973,7 +973,11 @@ static int ipsec_esp(struct talitos_edesc *edesc, struct aead_request *areq,
 		dma_sync_single_for_device(dev, edesc->dma_link_tbl,
 					   edesc->dma_len, DMA_BIDIRECTIONAL);
 	} else {
-		to_talitos_ptr(&desc->ptr[1], sg_dma_address(areq->assoc));
+		if (areq->assoclen)
+			to_talitos_ptr(&desc->ptr[1],
+				       sg_dma_address(areq->assoc));
+		else
+			to_talitos_ptr(&desc->ptr[1], edesc->iv_dma);
 		desc->ptr[1].j_extent = 0;
 	}
 
@@ -1122,10 +1126,10 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
 		return ERR_PTR(-EINVAL);
 	}
 
-	if (iv)
+	if (ivsize)
 		iv_dma = dma_map_single(dev, iv, ivsize, DMA_TO_DEVICE);
 
-	if (assoc) {
+	if (assoclen) {
 		/*
 		 * Currently it is assumed that iv is provided whenever assoc
 		 * is.
@@ -1173,9 +1177,16 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
 
 	edesc = kmalloc(alloc_len, GFP_DMA | flags);
 	if (!edesc) {
-		talitos_unmap_sg_chain(dev, assoc, DMA_TO_DEVICE);
+		if (assoc_chained)
+			talitos_unmap_sg_chain(dev, assoc, DMA_TO_DEVICE);
+		else if (assoclen)
+			dma_unmap_sg(dev, assoc,
+				     assoc_nents ? assoc_nents - 1 : 1,
+				     DMA_TO_DEVICE);
+
 		if (iv_dma)
 			dma_unmap_single(dev, iv_dma, ivsize, DMA_TO_DEVICE);
+
 		dev_err(dev, "could not allocate edescriptor\n");
 		return ERR_PTR(-ENOMEM);
 	}
-- 
cgit 


From 9dda2769af4f3f3093434648c409bb351120d9e8 Mon Sep 17 00:00:00 2001
From: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Date: Tue, 19 Nov 2013 17:12:47 +0100
Subject: crypto: s390 - Fix aes-xts parameter corruption

Some s390 crypto algorithms incorrectly use the crypto_tfm structure to
store private data. As the tfm can be shared among multiple threads, this
can result in data corruption.

This patch fixes aes-xts by moving the xts and pcc parameter blocks from
the tfm onto the stack (48 + 96 bytes).

Cc: stable@vger.kernel.org
Signed-off-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 arch/s390/crypto/aes_s390.c | 31 +++++++++++++++++--------------
 1 file changed, 17 insertions(+), 14 deletions(-)

diff --git a/arch/s390/crypto/aes_s390.c b/arch/s390/crypto/aes_s390.c
index 4363528dc8fd..b3feabd39f31 100644
--- a/arch/s390/crypto/aes_s390.c
+++ b/arch/s390/crypto/aes_s390.c
@@ -55,8 +55,7 @@ struct pcc_param {
 
 struct s390_xts_ctx {
 	u8 key[32];
-	u8 xts_param[16];
-	struct pcc_param pcc;
+	u8 pcc_key[32];
 	long enc;
 	long dec;
 	int key_len;
@@ -591,7 +590,7 @@ static int xts_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
 		xts_ctx->enc = KM_XTS_128_ENCRYPT;
 		xts_ctx->dec = KM_XTS_128_DECRYPT;
 		memcpy(xts_ctx->key + 16, in_key, 16);
-		memcpy(xts_ctx->pcc.key + 16, in_key + 16, 16);
+		memcpy(xts_ctx->pcc_key + 16, in_key + 16, 16);
 		break;
 	case 48:
 		xts_ctx->enc = 0;
@@ -602,7 +601,7 @@ static int xts_aes_set_key(struct crypto_tfm *tfm, const u8 *in_key,
 		xts_ctx->enc = KM_XTS_256_ENCRYPT;
 		xts_ctx->dec = KM_XTS_256_DECRYPT;
 		memcpy(xts_ctx->key, in_key, 32);
-		memcpy(xts_ctx->pcc.key, in_key + 32, 32);
+		memcpy(xts_ctx->pcc_key, in_key + 32, 32);
 		break;
 	default:
 		*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
@@ -621,29 +620,33 @@ static int xts_aes_crypt(struct blkcipher_desc *desc, long func,
 	unsigned int nbytes = walk->nbytes;
 	unsigned int n;
 	u8 *in, *out;
-	void *param;
+	struct pcc_param pcc_param;
+	struct {
+		u8 key[32];
+		u8 init[16];
+	} xts_param;
 
 	if (!nbytes)
 		goto out;
 
-	memset(xts_ctx->pcc.block, 0, sizeof(xts_ctx->pcc.block));
-	memset(xts_ctx->pcc.bit, 0, sizeof(xts_ctx->pcc.bit));
-	memset(xts_ctx->pcc.xts, 0, sizeof(xts_ctx->pcc.xts));
-	memcpy(xts_ctx->pcc.tweak, walk->iv, sizeof(xts_ctx->pcc.tweak));
-	param = xts_ctx->pcc.key + offset;
-	ret = crypt_s390_pcc(func, param);
+	memset(pcc_param.block, 0, sizeof(pcc_param.block));
+	memset(pcc_param.bit, 0, sizeof(pcc_param.bit));
+	memset(pcc_param.xts, 0, sizeof(pcc_param.xts));
+	memcpy(pcc_param.tweak, walk->iv, sizeof(pcc_param.tweak));
+	memcpy(pcc_param.key, xts_ctx->pcc_key, 32);
+	ret = crypt_s390_pcc(func, &pcc_param.key[offset]);
 	if (ret < 0)
 		return -EIO;
 
-	memcpy(xts_ctx->xts_param, xts_ctx->pcc.xts, 16);
-	param = xts_ctx->key + offset;
+	memcpy(xts_param.key, xts_ctx->key, 32);
+	memcpy(xts_param.init, pcc_param.xts, 16);
 	do {
 		/* only use complete blocks */
 		n = nbytes & ~(AES_BLOCK_SIZE - 1);
 		out = walk->dst.virt.addr;
 		in = walk->src.virt.addr;
 
-		ret = crypt_s390_km(func, param, out, in, n);
+		ret = crypt_s390_km(func, &xts_param.key[offset], out, in, n);
 		if (ret < 0 || ret != n)
 			return -EIO;
 
-- 
cgit 


From 5638cabf3e4883f38dfb246c30980cebf694fbda Mon Sep 17 00:00:00 2001
From: Horia Geanta <horia.geanta@freescale.com>
Date: Thu, 28 Nov 2013 15:11:15 +0200
Subject: crypto: ccm - Fix handling of zero plaintext when computing mac

There are cases when cryptlen can be zero in crypto_ccm_auth():
-encryptiom: input scatterlist length is zero (no plaintext)
-decryption: input scatterlist contains only the mac
plus the condition of having different source and destination buffers
(or else scatterlist length = max(plaintext_len, ciphertext_len)).

These are not handled correctly, leading to crashes like:

root@p4080ds:~/crypto# insmod tcrypt.ko mode=45
------------[ cut here ]------------
kernel BUG at crypto/scatterwalk.c:37!
Oops: Exception in kernel mode, sig: 5 [#1]
SMP NR_CPUS=8 P4080 DS
Modules linked in: tcrypt(+) crc32c xts xcbc vmac pcbc ecb gcm ghash_generic gf128mul ccm ctr seqiv
CPU: 3 PID: 1082 Comm: cryptomgr_test Not tainted 3.11.0 #14
task: ee12c5b0 ti: eecd0000 task.ti: eecd0000
NIP: c0204d98 LR: f9225848 CTR: c0204d80
REGS: eecd1b70 TRAP: 0700   Not tainted  (3.11.0)
MSR: 00029002 <CE,EE,ME>  CR: 22044022  XER: 20000000

GPR00: f9225c94 eecd1c20 ee12c5b0 eecd1c28 ee879400 ee879400 00000000 ee607464
GPR08: 00000001 00000001 00000000 006b0000 c0204d80 00000000 00000002 c0698e20
GPR16: ee987000 ee895000 fffffff4 ee879500 00000100 eecd1d58 00000001 00000000
GPR24: ee879400 00000020 00000000 00000000 ee5b2800 ee607430 00000004 ee607460
NIP [c0204d98] scatterwalk_start+0x18/0x30
LR [f9225848] get_data_to_compute+0x28/0x2f0 [ccm]
Call Trace:
[eecd1c20] [f9225974] get_data_to_compute+0x154/0x2f0 [ccm] (unreliable)
[eecd1c70] [f9225c94] crypto_ccm_auth+0x184/0x1d0 [ccm]
[eecd1cb0] [f9225d40] crypto_ccm_encrypt+0x60/0x2d0 [ccm]
[eecd1cf0] [c020d77c] __test_aead+0x3ec/0xe20
[eecd1e20] [c020f35c] test_aead+0x6c/0xe0
[eecd1e40] [c020f420] alg_test_aead+0x50/0xd0
[eecd1e60] [c020e5e4] alg_test+0x114/0x2e0
[eecd1ee0] [c020bd1c] cryptomgr_test+0x4c/0x60
[eecd1ef0] [c0047058] kthread+0xa8/0xb0
[eecd1f40] [c000eb0c] ret_from_kernel_thread+0x5c/0x64
Instruction dump:
0f080000 81290024 552807fe 0f080000 5529003a 4bffffb4 90830000 39400000
39000001 8124000c 2f890000 7d28579e <0f090000> 81240008 91230004 4e800020
---[ end trace 6d652dfcd1be37bd ]---

Cc: <stable@vger.kernel.org>
Cc: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Horia Geanta <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/ccm.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/crypto/ccm.c b/crypto/ccm.c
index 3e05499d183a..1df84217f7c9 100644
--- a/crypto/ccm.c
+++ b/crypto/ccm.c
@@ -271,7 +271,8 @@ static int crypto_ccm_auth(struct aead_request *req, struct scatterlist *plain,
 	}
 
 	/* compute plaintext into mac */
-	get_data_to_compute(cipher, pctx, plain, cryptlen);
+	if (cryptlen)
+		get_data_to_compute(cipher, pctx, plain, cryptlen);
 
 out:
 	return err;
-- 
cgit 


From bbf9c8934ba2bfd5fd809562f945deaf5a565898 Mon Sep 17 00:00:00 2001
From: Horia Geanta <horia.geanta@freescale.com>
Date: Thu, 28 Nov 2013 15:11:16 +0200
Subject: crypto: caam - fix aead sglen for case 'dst != src'

For aead case when source and destination buffers are different,
there is an incorrect assumption that the source length includes the ICV
length. Fix this, since it leads to an oops when using sg_count() to
find the number of nents in the scatterlist:

Unable to handle kernel paging request for data at address 0x00000004
Faulting instruction address: 0xf91f7634
Oops: Kernel access of bad area, sig: 11 [#1]
SMP NR_CPUS=8 P4080 DS
Modules linked in: caamalg(+) caam_jr caam
CPU: 1 PID: 1053 Comm: cryptomgr_test Not tainted 3.11.0 #16
task: eeb24ab0 ti: eeafa000 task.ti: eeafa000
NIP: f91f7634 LR: f91f7f24 CTR: f91f7ef0
REGS: eeafbbc0 TRAP: 0300   Not tainted  (3.11.0)
MSR: 00029002 <CE,EE,ME>  CR: 44044044  XER: 00000000
DEAR: 00000004, ESR: 00000000

GPR00: f91f7f24 eeafbc70 eeb24ab0 00000002 ee8e0900 ee8e0800 00000024 c45c4462
GPR08: 00000010 00000000 00000014 0c0e4000 24044044 00000000 00000000 c0691590
GPR16: eeab0000 eeb23000 00000000 00000000 00000000 00000001 00000001 eeafbcc8
GPR24: 000000d1 00000010 ee2d5000 ee49ea10 ee49ea10 ee46f640 ee46f640 c0691590
NIP [f91f7634] aead_edesc_alloc.constprop.14+0x144/0x780 [caamalg]
LR [f91f7f24] aead_encrypt+0x34/0x288 [caamalg]
Call Trace:
[eeafbc70] [a1004000] 0xa1004000 (unreliable)
[eeafbcc0] [f91f7f24] aead_encrypt+0x34/0x288 [caamalg]
[eeafbcf0] [c020d77c] __test_aead+0x3ec/0xe20
[eeafbe20] [c020f35c] test_aead+0x6c/0xe0
[eeafbe40] [c020f420] alg_test_aead+0x50/0xd0
[eeafbe60] [c020e5e4] alg_test+0x114/0x2e0
[eeafbee0] [c020bd1c] cryptomgr_test+0x4c/0x60
[eeafbef0] [c0047058] kthread+0xa8/0xb0
[eeafbf40] [c000eb0c] ret_from_kernel_thread+0x5c/0x64
Instruction dump:
69084321 7d080034 5508d97e 69080001 0f080000 81290024 552807fe 0f080000
3a600001 5529003a 2f8a0000 40dd0028 <80e90004> 3ab50001 8109000c 70e30002
---[ end trace b3c3e23925c7484e ]---

While here, add a tcrypt mode for making it easy to test authenc
(needed for triggering case above).

Signed-off-by: Horia Geanta <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/tcrypt.c               |  4 ++++
 drivers/crypto/caam/caamalg.c | 51 ++++++++++++++++++++++++-------------------
 2 files changed, 33 insertions(+), 22 deletions(-)

diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c
index 1ab8258fcf56..001f07cdb828 100644
--- a/crypto/tcrypt.c
+++ b/crypto/tcrypt.c
@@ -1242,6 +1242,10 @@ static int do_test(int m)
 		ret += tcrypt_test("cmac(des3_ede)");
 		break;
 
+	case 155:
+		ret += tcrypt_test("authenc(hmac(sha1),cbc(aes))");
+		break;
+
 	case 200:
 		test_cipher_speed("ecb(aes)", ENCRYPT, sec, NULL, 0,
 				speed_template_16_24_32);
diff --git a/drivers/crypto/caam/caamalg.c b/drivers/crypto/caam/caamalg.c
index 4f44b71b9e24..4cf5dec826e1 100644
--- a/drivers/crypto/caam/caamalg.c
+++ b/drivers/crypto/caam/caamalg.c
@@ -818,7 +818,7 @@ static void aead_decrypt_done(struct device *jrdev, u32 *desc, u32 err,
 		       ivsize, 1);
 	print_hex_dump(KERN_ERR, "dst    @"__stringify(__LINE__)": ",
 		       DUMP_PREFIX_ADDRESS, 16, 4, sg_virt(req->dst),
-		       req->cryptlen, 1);
+		       req->cryptlen - ctx->authsize, 1);
 #endif
 
 	if (err) {
@@ -972,12 +972,9 @@ static void init_aead_job(u32 *sh_desc, dma_addr_t ptr,
 				 (edesc->src_nents ? : 1);
 		in_options = LDST_SGF;
 	}
-	if (encrypt)
-		append_seq_in_ptr(desc, src_dma, req->assoclen + ivsize +
-				  req->cryptlen - authsize, in_options);
-	else
-		append_seq_in_ptr(desc, src_dma, req->assoclen + ivsize +
-				  req->cryptlen, in_options);
+
+	append_seq_in_ptr(desc, src_dma, req->assoclen + ivsize + req->cryptlen,
+			  in_options);
 
 	if (likely(req->src == req->dst)) {
 		if (all_contig) {
@@ -998,7 +995,8 @@ static void init_aead_job(u32 *sh_desc, dma_addr_t ptr,
 		}
 	}
 	if (encrypt)
-		append_seq_out_ptr(desc, dst_dma, req->cryptlen, out_options);
+		append_seq_out_ptr(desc, dst_dma, req->cryptlen + authsize,
+				   out_options);
 	else
 		append_seq_out_ptr(desc, dst_dma, req->cryptlen - authsize,
 				   out_options);
@@ -1048,8 +1046,8 @@ static void init_aead_giv_job(u32 *sh_desc, dma_addr_t ptr,
 		sec4_sg_index += edesc->assoc_nents + 1 + edesc->src_nents;
 		in_options = LDST_SGF;
 	}
-	append_seq_in_ptr(desc, src_dma, req->assoclen + ivsize +
-			  req->cryptlen - authsize, in_options);
+	append_seq_in_ptr(desc, src_dma, req->assoclen + ivsize + req->cryptlen,
+			  in_options);
 
 	if (contig & GIV_DST_CONTIG) {
 		dst_dma = edesc->iv_dma;
@@ -1066,7 +1064,8 @@ static void init_aead_giv_job(u32 *sh_desc, dma_addr_t ptr,
 		}
 	}
 
-	append_seq_out_ptr(desc, dst_dma, ivsize + req->cryptlen, out_options);
+	append_seq_out_ptr(desc, dst_dma, ivsize + req->cryptlen + authsize,
+			   out_options);
 }
 
 /*
@@ -1130,7 +1129,8 @@ static void init_ablkcipher_job(u32 *sh_desc, dma_addr_t ptr,
  * allocate and map the aead extended descriptor
  */
 static struct aead_edesc *aead_edesc_alloc(struct aead_request *req,
-					   int desc_bytes, bool *all_contig_ptr)
+					   int desc_bytes, bool *all_contig_ptr,
+					   bool encrypt)
 {
 	struct crypto_aead *aead = crypto_aead_reqtfm(req);
 	struct caam_ctx *ctx = crypto_aead_ctx(aead);
@@ -1145,12 +1145,22 @@ static struct aead_edesc *aead_edesc_alloc(struct aead_request *req,
 	bool assoc_chained = false, src_chained = false, dst_chained = false;
 	int ivsize = crypto_aead_ivsize(aead);
 	int sec4_sg_index, sec4_sg_len = 0, sec4_sg_bytes;
+	unsigned int authsize = ctx->authsize;
 
 	assoc_nents = sg_count(req->assoc, req->assoclen, &assoc_chained);
-	src_nents = sg_count(req->src, req->cryptlen, &src_chained);
 
-	if (unlikely(req->dst != req->src))
-		dst_nents = sg_count(req->dst, req->cryptlen, &dst_chained);
+	if (unlikely(req->dst != req->src)) {
+		src_nents = sg_count(req->src, req->cryptlen, &src_chained);
+		dst_nents = sg_count(req->dst,
+				     req->cryptlen +
+					(encrypt ? authsize : (-authsize)),
+				     &dst_chained);
+	} else {
+		src_nents = sg_count(req->src,
+				     req->cryptlen +
+					(encrypt ? authsize : 0),
+				     &src_chained);
+	}
 
 	sgc = dma_map_sg_chained(jrdev, req->assoc, assoc_nents ? : 1,
 				 DMA_TO_DEVICE, assoc_chained);
@@ -1234,11 +1244,9 @@ static int aead_encrypt(struct aead_request *req)
 	u32 *desc;
 	int ret = 0;
 
-	req->cryptlen += ctx->authsize;
-
 	/* allocate extended descriptor */
 	edesc = aead_edesc_alloc(req, DESC_JOB_IO_LEN *
-				 CAAM_CMD_SZ, &all_contig);
+				 CAAM_CMD_SZ, &all_contig, true);
 	if (IS_ERR(edesc))
 		return PTR_ERR(edesc);
 
@@ -1275,7 +1283,7 @@ static int aead_decrypt(struct aead_request *req)
 
 	/* allocate extended descriptor */
 	edesc = aead_edesc_alloc(req, DESC_JOB_IO_LEN *
-				 CAAM_CMD_SZ, &all_contig);
+				 CAAM_CMD_SZ, &all_contig, false);
 	if (IS_ERR(edesc))
 		return PTR_ERR(edesc);
 
@@ -1332,7 +1340,8 @@ static struct aead_edesc *aead_giv_edesc_alloc(struct aead_givcrypt_request
 	src_nents = sg_count(req->src, req->cryptlen, &src_chained);
 
 	if (unlikely(req->dst != req->src))
-		dst_nents = sg_count(req->dst, req->cryptlen, &dst_chained);
+		dst_nents = sg_count(req->dst, req->cryptlen + ctx->authsize,
+				     &dst_chained);
 
 	sgc = dma_map_sg_chained(jrdev, req->assoc, assoc_nents ? : 1,
 				 DMA_TO_DEVICE, assoc_chained);
@@ -1426,8 +1435,6 @@ static int aead_givencrypt(struct aead_givcrypt_request *areq)
 	u32 *desc;
 	int ret = 0;
 
-	req->cryptlen += ctx->authsize;
-
 	/* allocate extended descriptor */
 	edesc = aead_giv_edesc_alloc(areq, DESC_JOB_IO_LEN *
 				     CAAM_CMD_SZ, &contig);
-- 
cgit 


From 62293a37de0138b2e9c965f0a3b803c0f40a6581 Mon Sep 17 00:00:00 2001
From: Horia Geanta <horia.geanta@freescale.com>
Date: Thu, 28 Nov 2013 15:11:17 +0200
Subject: crypto: talitos - fix aead sglen for case 'dst != src'

For aead case when source and destination buffers are different,
there is an incorrect assumption that the source length includes the ICV
length. Fix this, since it leads to an oops when using sg_count() to
find the number of nents in the scatterlist:

Unable to handle kernel paging request for data at address 0x00000004
Faulting instruction address: 0xf2265a28
Oops: Kernel access of bad area, sig: 11 [#1]
SMP NR_CPUS=8 P2020 RDB
Modules linked in: talitos(+)
CPU: 1 PID: 2187 Comm: cryptomgr_test Not tainted 3.11.0 #12
task: c4e72e20 ti: ef634000 task.ti: ef634000
NIP: f2265a28 LR: f2266ad8 CTR: c000c900
REGS: ef635bb0 TRAP: 0300   Not tainted  (3.11.0)
MSR: 00029000 <CE,EE,ME>  CR: 42042084  XER: 00000000
DEAR: 00000004, ESR: 00000000

GPR00: f2266e10 ef635c60 c4e72e20 00000001 00000014 ef635c69 00000001 c11f3082
GPR08: 00000010 00000000 00000002 2f635d58 22044084 00000000 00000000 c0755c80
GPR16: c4bf1000 ef784000 00000000 00000000 00000020 00000014 00000010 ef2f6100
GPR24: ef2f6200 00000024 ef143210 ef2f6000 00000000 ef635d58 00000000 2f635d58
NIP [f2265a28] sg_count+0x1c/0xb4 [talitos]
LR [f2266ad8] talitos_edesc_alloc+0x12c/0x410 [talitos]
Call Trace:
[ef635c60] [c0552068] schedule_timeout+0x148/0x1ac (unreliable)
[ef635cc0] [f2266e10] aead_edesc_alloc+0x54/0x64 [talitos]
[ef635ce0] [f22680f0] aead_encrypt+0x24/0x70 [talitos]
[ef635cf0] [c024b948] __test_aead+0x494/0xf68
[ef635e20] [c024d54c] test_aead+0x64/0xcc
[ef635e40] [c024d604] alg_test_aead+0x50/0xc4
[ef635e60] [c024c838] alg_test+0x10c/0x2e4
[ef635ee0] [c0249d1c] cryptomgr_test+0x4c/0x54
[ef635ef0] [c005d598] kthread+0xa8/0xac
[ef635f40] [c000e3bc] ret_from_kernel_thread+0x5c/0x64
Instruction dump:
81230024 552807fe 0f080000 5523003a 4bffff24 39000000 2c040000 99050000
408100a0 7c691b78 38c00001 38600000 <80e90004> 38630001 8109000c 70ea0002
---[ end trace 4498123cd8478591 ]---

Signed-off-by: Horia Geanta <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 drivers/crypto/talitos.c | 47 +++++++++++++++++++++++------------------------
 1 file changed, 23 insertions(+), 24 deletions(-)

diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 81ab42cd14b2..b44f4ddc565c 100644
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -1112,7 +1112,8 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
 						 unsigned int authsize,
 						 unsigned int ivsize,
 						 int icv_stashing,
-						 u32 cryptoflags)
+						 u32 cryptoflags,
+						 bool encrypt)
 {
 	struct talitos_edesc *edesc;
 	int assoc_nents = 0, src_nents, dst_nents, alloc_len, dma_len;
@@ -1145,19 +1146,17 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
 			assoc_nents = assoc_nents ? assoc_nents + 1 : 2;
 	}
 
-	src_nents = sg_count(src, cryptlen + authsize, &src_chained);
-	src_nents = (src_nents == 1) ? 0 : src_nents;
-
-	if (!dst) {
-		dst_nents = 0;
-	} else {
-		if (dst == src) {
-			dst_nents = src_nents;
-		} else {
-			dst_nents = sg_count(dst, cryptlen + authsize,
-					     &dst_chained);
-			dst_nents = (dst_nents == 1) ? 0 : dst_nents;
-		}
+	if (!dst || dst == src) {
+		src_nents = sg_count(src, cryptlen + authsize, &src_chained);
+		src_nents = (src_nents == 1) ? 0 : src_nents;
+		dst_nents = dst ? src_nents : 0;
+	} else { /* dst && dst != src*/
+		src_nents = sg_count(src, cryptlen + (encrypt ? 0 : authsize),
+				     &src_chained);
+		src_nents = (src_nents == 1) ? 0 : src_nents;
+		dst_nents = sg_count(dst, cryptlen + (encrypt ? authsize : 0),
+				     &dst_chained);
+		dst_nents = (dst_nents == 1) ? 0 : dst_nents;
 	}
 
 	/*
@@ -1208,7 +1207,7 @@ static struct talitos_edesc *talitos_edesc_alloc(struct device *dev,
 }
 
 static struct talitos_edesc *aead_edesc_alloc(struct aead_request *areq, u8 *iv,
-					      int icv_stashing)
+					      int icv_stashing, bool encrypt)
 {
 	struct crypto_aead *authenc = crypto_aead_reqtfm(areq);
 	struct talitos_ctx *ctx = crypto_aead_ctx(authenc);
@@ -1217,7 +1216,7 @@ static struct talitos_edesc *aead_edesc_alloc(struct aead_request *areq, u8 *iv,
 	return talitos_edesc_alloc(ctx->dev, areq->assoc, areq->src, areq->dst,
 				   iv, areq->assoclen, areq->cryptlen,
 				   ctx->authsize, ivsize, icv_stashing,
-				   areq->base.flags);
+				   areq->base.flags, encrypt);
 }
 
 static int aead_encrypt(struct aead_request *req)
@@ -1227,7 +1226,7 @@ static int aead_encrypt(struct aead_request *req)
 	struct talitos_edesc *edesc;
 
 	/* allocate extended descriptor */
-	edesc = aead_edesc_alloc(req, req->iv, 0);
+	edesc = aead_edesc_alloc(req, req->iv, 0, true);
 	if (IS_ERR(edesc))
 		return PTR_ERR(edesc);
 
@@ -1250,7 +1249,7 @@ static int aead_decrypt(struct aead_request *req)
 	req->cryptlen -= authsize;
 
 	/* allocate extended descriptor */
-	edesc = aead_edesc_alloc(req, req->iv, 1);
+	edesc = aead_edesc_alloc(req, req->iv, 1, false);
 	if (IS_ERR(edesc))
 		return PTR_ERR(edesc);
 
@@ -1296,7 +1295,7 @@ static int aead_givencrypt(struct aead_givcrypt_request *req)
 	struct talitos_edesc *edesc;
 
 	/* allocate extended descriptor */
-	edesc = aead_edesc_alloc(areq, req->giv, 0);
+	edesc = aead_edesc_alloc(areq, req->giv, 0, true);
 	if (IS_ERR(edesc))
 		return PTR_ERR(edesc);
 
@@ -1452,7 +1451,7 @@ static int common_nonsnoop(struct talitos_edesc *edesc,
 }
 
 static struct talitos_edesc *ablkcipher_edesc_alloc(struct ablkcipher_request *
-						    areq)
+						    areq, bool encrypt)
 {
 	struct crypto_ablkcipher *cipher = crypto_ablkcipher_reqtfm(areq);
 	struct talitos_ctx *ctx = crypto_ablkcipher_ctx(cipher);
@@ -1460,7 +1459,7 @@ static struct talitos_edesc *ablkcipher_edesc_alloc(struct ablkcipher_request *
 
 	return talitos_edesc_alloc(ctx->dev, NULL, areq->src, areq->dst,
 				   areq->info, 0, areq->nbytes, 0, ivsize, 0,
-				   areq->base.flags);
+				   areq->base.flags, encrypt);
 }
 
 static int ablkcipher_encrypt(struct ablkcipher_request *areq)
@@ -1470,7 +1469,7 @@ static int ablkcipher_encrypt(struct ablkcipher_request *areq)
 	struct talitos_edesc *edesc;
 
 	/* allocate extended descriptor */
-	edesc = ablkcipher_edesc_alloc(areq);
+	edesc = ablkcipher_edesc_alloc(areq, true);
 	if (IS_ERR(edesc))
 		return PTR_ERR(edesc);
 
@@ -1487,7 +1486,7 @@ static int ablkcipher_decrypt(struct ablkcipher_request *areq)
 	struct talitos_edesc *edesc;
 
 	/* allocate extended descriptor */
-	edesc = ablkcipher_edesc_alloc(areq);
+	edesc = ablkcipher_edesc_alloc(areq, false);
 	if (IS_ERR(edesc))
 		return PTR_ERR(edesc);
 
@@ -1639,7 +1638,7 @@ static struct talitos_edesc *ahash_edesc_alloc(struct ahash_request *areq,
 	struct talitos_ahash_req_ctx *req_ctx = ahash_request_ctx(areq);
 
 	return talitos_edesc_alloc(ctx->dev, NULL, req_ctx->psrc, NULL, NULL, 0,
-				   nbytes, 0, 0, 0, areq->base.flags);
+				   nbytes, 0, 0, 0, areq->base.flags, false);
 }
 
 static int ahash_init(struct ahash_request *areq)
-- 
cgit 


From 8ec25c51291681bd68bdc290b35f2e61fa601c21 Mon Sep 17 00:00:00 2001
From: Horia Geanta <horia.geanta@freescale.com>
Date: Thu, 28 Nov 2013 15:11:18 +0200
Subject: crypto: testmgr - fix sglen in test_aead for case 'dst != src'

Commit d8a32ac25698cd60b02bed2100379803c7f964e3 (crypto: testmgr - make
test_aead also test 'dst != src' code paths) added support for different
source and destination buffers in test_aead.

This patch modifies the source and destination buffer lengths accordingly:
the lengths are not equal since encryption / decryption adds / removes
the ICV.

Cc: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Horia Geanta <horia.geanta@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
---
 crypto/testmgr.c | 26 ++++++++++++--------------
 1 file changed, 12 insertions(+), 14 deletions(-)

diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 432afc03e7c3..77955507f6f1 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -503,16 +503,16 @@ static int __test_aead(struct crypto_aead *tfm, int enc,
 				goto out;
 			}
 
-			sg_init_one(&sg[0], input,
-				    template[i].ilen + (enc ? authsize : 0));
-
 			if (diff_dst) {
 				output = xoutbuf[0];
 				output += align_offset;
+				sg_init_one(&sg[0], input, template[i].ilen);
 				sg_init_one(&sgout[0], output,
+					    template[i].rlen);
+			} else {
+				sg_init_one(&sg[0], input,
 					    template[i].ilen +
 						(enc ? authsize : 0));
-			} else {
 				output = input;
 			}
 
@@ -612,12 +612,6 @@ static int __test_aead(struct crypto_aead *tfm, int enc,
 				memcpy(q, template[i].input + temp,
 				       template[i].tap[k]);
 
-				n = template[i].tap[k];
-				if (k == template[i].np - 1 && enc)
-					n += authsize;
-				if (offset_in_page(q) + n < PAGE_SIZE)
-					q[n] = 0;
-
 				sg_set_buf(&sg[k], q, template[i].tap[k]);
 
 				if (diff_dst) {
@@ -625,13 +619,17 @@ static int __test_aead(struct crypto_aead *tfm, int enc,
 					    offset_in_page(IDX[k]);
 
 					memset(q, 0, template[i].tap[k]);
-					if (offset_in_page(q) + n < PAGE_SIZE)
-						q[n] = 0;
 
 					sg_set_buf(&sgout[k], q,
 						   template[i].tap[k]);
 				}
 
+				n = template[i].tap[k];
+				if (k == template[i].np - 1 && enc)
+					n += authsize;
+				if (offset_in_page(q) + n < PAGE_SIZE)
+					q[n] = 0;
+
 				temp += template[i].tap[k];
 			}
 
@@ -650,10 +648,10 @@ static int __test_aead(struct crypto_aead *tfm, int enc,
 					goto out;
 				}
 
-				sg[k - 1].length += authsize;
-
 				if (diff_dst)
 					sgout[k - 1].length += authsize;
+				else
+					sg[k - 1].length += authsize;
 			}
 
 			sg_init_table(asg, template[i].anp);
-- 
cgit 


From 08332dff8adebb74171e98e008d6c20de6658c42 Mon Sep 17 00:00:00 2001
From: Mark Rutland <mark.rutland@arm.com>
Date: Thu, 28 Nov 2013 14:21:40 +0000
Subject: irqchip: Gic: fix boot for chained gics

As of c0114709ed: "irqchip: gic: Perform the gic_secondary_init() call
via CPU notifier", booting on a platform with chained gics (e.g.
Realview EB ARM11MPCore) will result in the gic_cpu_notifier being
registered twice, corrupting the cpu notifier list and rendering the
platform unbootable.

This patch ensures that we only register the notifier for the first
gic, allowing platforms with chained gics to boot. At the same time we
limit the pointlessly duplicated calls to set_smp_cross_call and
set_handle_irq to the first gic registered.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: marc.zyngier@arm.com
Cc: rob.herring@calxeda.com
Cc: olof@lixom.net
Link: http://lkml.kernel.org/r/1385648500-29048-1-git-send-email-mark.rutland@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 drivers/irqchip/irq-gic.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index d0e948084eaf..e219a5bf0cac 100644
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -814,12 +814,13 @@ void __init gic_init_bases(unsigned int gic_nr, int irq_start,
 	if (WARN_ON(!gic->domain))
 		return;
 
+	if (gic_nr == 0) {
 #ifdef CONFIG_SMP
-	set_smp_cross_call(gic_raise_softirq);
-	register_cpu_notifier(&gic_cpu_notifier);
+		set_smp_cross_call(gic_raise_softirq);
+		register_cpu_notifier(&gic_cpu_notifier);
 #endif
-
-	set_handle_irq(gic_handle_irq);
+		set_handle_irq(gic_handle_irq);
+	}
 
 	gic_chip.flags |= gic_arch_extn.flags;
 	gic_dist_init(gic);
-- 
cgit 


From 5ecbe3c3c690b5ab493c730c317475287a9e8b45 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Thu, 28 Nov 2013 09:16:33 +0100
Subject: kernel/extable: fix address-checks for core_kernel and init areas

The init_kernel_text() and core_kernel_text() functions should not
include the labels _einittext and _etext when checking if an address is
inside the .text or .init sections.

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 kernel/extable.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/extable.c b/kernel/extable.c
index 832cb28105bb..763faf037ec1 100644
--- a/kernel/extable.c
+++ b/kernel/extable.c
@@ -61,7 +61,7 @@ const struct exception_table_entry *search_exception_tables(unsigned long addr)
 static inline int init_kernel_text(unsigned long addr)
 {
 	if (addr >= (unsigned long)_sinittext &&
-	    addr <= (unsigned long)_einittext)
+	    addr < (unsigned long)_einittext)
 		return 1;
 	return 0;
 }
@@ -69,7 +69,7 @@ static inline int init_kernel_text(unsigned long addr)
 int core_kernel_text(unsigned long addr)
 {
 	if (addr >= (unsigned long)_stext &&
-	    addr <= (unsigned long)_etext)
+	    addr < (unsigned long)_etext)
 		return 1;
 
 	if (system_state == SYSTEM_BOOTING &&
-- 
cgit 


From 6a2e5e521c333a0b56cb60dc5587e3f90859c5e7 Mon Sep 17 00:00:00 2001
From: Matthew Leach <Matthew.Leach@arm.com>
Date: Thu, 28 Nov 2013 12:07:22 +0000
Subject: arm64: ptrace: fix compat registes get/set to be endian clean

On a BE system the wrong half of the X registers is retrieved/written
when attempting to get/set the value of aarch32 registers through
ptrace.

Ensure that types are the correct width so that the relevant
casting occurs.

Signed-off-by: Matthew Leach <matthew.leach@arm.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kernel/ptrace.c | 40 +++++++++++++++++++---------------------
 1 file changed, 19 insertions(+), 21 deletions(-)

diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c
index fecdbf7de82e..6777a2192b83 100644
--- a/arch/arm64/kernel/ptrace.c
+++ b/arch/arm64/kernel/ptrace.c
@@ -636,28 +636,27 @@ static int compat_gpr_get(struct task_struct *target,
 
 	for (i = 0; i < num_regs; ++i) {
 		unsigned int idx = start + i;
-		void *reg;
+		compat_ulong_t reg;
 
 		switch (idx) {
 		case 15:
-			reg = (void *)&task_pt_regs(target)->pc;
+			reg = task_pt_regs(target)->pc;
 			break;
 		case 16:
-			reg = (void *)&task_pt_regs(target)->pstate;
+			reg = task_pt_regs(target)->pstate;
 			break;
 		case 17:
-			reg = (void *)&task_pt_regs(target)->orig_x0;
+			reg = task_pt_regs(target)->orig_x0;
 			break;
 		default:
-			reg = (void *)&task_pt_regs(target)->regs[idx];
+			reg = task_pt_regs(target)->regs[idx];
 		}
 
-		ret = copy_to_user(ubuf, reg, sizeof(compat_ulong_t));
-
+		ret = copy_to_user(ubuf, &reg, sizeof(reg));
 		if (ret)
 			break;
-		else
-			ubuf += sizeof(compat_ulong_t);
+
+		ubuf += sizeof(reg);
 	}
 
 	return ret;
@@ -685,28 +684,28 @@ static int compat_gpr_set(struct task_struct *target,
 
 	for (i = 0; i < num_regs; ++i) {
 		unsigned int idx = start + i;
-		void *reg;
+		compat_ulong_t reg;
+
+		ret = copy_from_user(&reg, ubuf, sizeof(reg));
+		if (ret)
+			return ret;
+
+		ubuf += sizeof(reg);
 
 		switch (idx) {
 		case 15:
-			reg = (void *)&newregs.pc;
+			newregs.pc = reg;
 			break;
 		case 16:
-			reg = (void *)&newregs.pstate;
+			newregs.pstate = reg;
 			break;
 		case 17:
-			reg = (void *)&newregs.orig_x0;
+			newregs.orig_x0 = reg;
 			break;
 		default:
-			reg = (void *)&newregs.regs[idx];
+			newregs.regs[idx] = reg;
 		}
 
-		ret = copy_from_user(reg, ubuf, sizeof(compat_ulong_t));
-
-		if (ret)
-			goto out;
-		else
-			ubuf += sizeof(compat_ulong_t);
 	}
 
 	if (valid_user_regs(&newregs.user_regs))
@@ -714,7 +713,6 @@ static int compat_gpr_set(struct task_struct *target,
 	else
 		ret = -EINVAL;
 
-out:
 	return ret;
 }
 
-- 
cgit 


From 2dacab73dc9f86ad12eb41bc3355d7f492696bca Mon Sep 17 00:00:00 2001
From: Matthew Leach <Matthew.Leach@arm.com>
Date: Thu, 28 Nov 2013 12:07:23 +0000
Subject: arm64: debug: make aarch32 bkpt checking endian clean

The current breakpoint instruction checking code for A32 is not endian
clean. Fix this with appropriate byte-swapping when retrieving
instructions.

Signed-off-by: Matthew Leach <matthew.leach@arm.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/kernel/debug-monitors.c | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

diff --git a/arch/arm64/kernel/debug-monitors.c b/arch/arm64/kernel/debug-monitors.c
index 6a0a9b132d7a..4ae68579031d 100644
--- a/arch/arm64/kernel/debug-monitors.c
+++ b/arch/arm64/kernel/debug-monitors.c
@@ -248,7 +248,8 @@ static int brk_handler(unsigned long addr, unsigned int esr,
 int aarch32_break_handler(struct pt_regs *regs)
 {
 	siginfo_t info;
-	unsigned int instr;
+	u32 arm_instr;
+	u16 thumb_instr;
 	bool bp = false;
 	void __user *pc = (void __user *)instruction_pointer(regs);
 
@@ -257,18 +258,21 @@ int aarch32_break_handler(struct pt_regs *regs)
 
 	if (compat_thumb_mode(regs)) {
 		/* get 16-bit Thumb instruction */
-		get_user(instr, (u16 __user *)pc);
-		if (instr == AARCH32_BREAK_THUMB2_LO) {
+		get_user(thumb_instr, (u16 __user *)pc);
+		thumb_instr = le16_to_cpu(thumb_instr);
+		if (thumb_instr == AARCH32_BREAK_THUMB2_LO) {
 			/* get second half of 32-bit Thumb-2 instruction */
-			get_user(instr, (u16 __user *)(pc + 2));
-			bp = instr == AARCH32_BREAK_THUMB2_HI;
+			get_user(thumb_instr, (u16 __user *)(pc + 2));
+			thumb_instr = le16_to_cpu(thumb_instr);
+			bp = thumb_instr == AARCH32_BREAK_THUMB2_HI;
 		} else {
-			bp = instr == AARCH32_BREAK_THUMB;
+			bp = thumb_instr == AARCH32_BREAK_THUMB;
 		}
 	} else {
 		/* 32-bit ARM instruction */
-		get_user(instr, (u32 __user *)pc);
-		bp = (instr & ~0xf0000000) == AARCH32_BREAK_ARM;
+		get_user(arm_instr, (u32 __user *)pc);
+		arm_instr = le32_to_cpu(arm_instr);
+		bp = (arm_instr & ~0xf0000000) == AARCH32_BREAK_ARM;
 	}
 
 	if (!bp)
-- 
cgit 


From e0d59733f6b1796b8d6692642c87d7dd862c3e3a Mon Sep 17 00:00:00 2001
From: Seiji Aguchi <seiji.aguchi@hds.com>
Date: Wed, 30 Oct 2013 15:27:26 -0400
Subject: efivars, efi-pstore: Hold off deletion of sysfs entry until the scan
 is completed

Currently, when mounting pstore file system, a read callback of
efi_pstore driver runs mutiple times as below.

- In the first read callback, scan efivar_sysfs_list from head and pass
  a kmsg buffer of a entry to an upper pstore layer.
- In the second read callback, rescan efivar_sysfs_list from the entry
  and pass another kmsg buffer to it.
- Repeat the scan and pass until the end of efivar_sysfs_list.

In this process, an entry is read across the multiple read function
calls. To avoid race between the read and erasion, the whole process
above is protected by a spinlock, holding in open() and releasing in
close().

At the same time, kmemdup() is called to pass the buffer to pstore
filesystem during it. And then, it causes a following lockdep warning.

To make the dynamic memory allocation runnable without taking spinlock,
holding off a deletion of sysfs entry if it happens while scanning it
via efi_pstore, and deleting it after the scan is completed.

To implement it, this patch introduces two flags, scanning and deleting,
to efivar_entry.

On the code basis, it seems that all the scanning and deleting logic is
not needed because __efivars->lock are not dropped when reading from the
EFI variable store.

But, the scanning and deleting logic is still needed because an
efi-pstore and a pstore filesystem works as follows.

In case an entry(A) is found, the pointer is saved to psi->data.  And
efi_pstore_read() passes the entry(A) to a pstore filesystem by
releasing  __efivars->lock.

And then, the pstore filesystem calls efi_pstore_read() again and the
same entry(A), which is saved to psi->data, is used for resuming to scan
a sysfs-list.

So, to protect the entry(A), the logic is needed.

[    1.143710] ------------[ cut here ]------------
[    1.144058] WARNING: CPU: 1 PID: 1 at kernel/lockdep.c:2740 lockdep_trace_alloc+0x104/0x110()
[    1.144058] DEBUG_LOCKS_WARN_ON(irqs_disabled_flags(flags))
[    1.144058] Modules linked in:
[    1.144058] CPU: 1 PID: 1 Comm: systemd Not tainted 3.11.0-rc5 #2
[    1.144058]  0000000000000009 ffff8800797e9ae0 ffffffff816614a5 ffff8800797e9b28
[    1.144058]  ffff8800797e9b18 ffffffff8105510d 0000000000000080 0000000000000046
[    1.144058]  00000000000000d0 00000000000003af ffffffff81ccd0c0 ffff8800797e9b78
[    1.144058] Call Trace:
[    1.144058]  [<ffffffff816614a5>] dump_stack+0x54/0x74
[    1.144058]  [<ffffffff8105510d>] warn_slowpath_common+0x7d/0xa0
[    1.144058]  [<ffffffff8105517c>] warn_slowpath_fmt+0x4c/0x50
[    1.144058]  [<ffffffff8131290f>] ? vsscanf+0x57f/0x7b0
[    1.144058]  [<ffffffff810bbd74>] lockdep_trace_alloc+0x104/0x110
[    1.144058]  [<ffffffff81192da0>] __kmalloc_track_caller+0x50/0x280
[    1.144058]  [<ffffffff815147bb>] ? efi_pstore_read_func.part.1+0x12b/0x170
[    1.144058]  [<ffffffff8115b260>] kmemdup+0x20/0x50
[    1.144058]  [<ffffffff815147bb>] efi_pstore_read_func.part.1+0x12b/0x170
[    1.144058]  [<ffffffff81514800>] ? efi_pstore_read_func.part.1+0x170/0x170
[    1.144058]  [<ffffffff815148b4>] efi_pstore_read_func+0xb4/0xe0
[    1.144058]  [<ffffffff81512b7b>] __efivar_entry_iter+0xfb/0x120
[    1.144058]  [<ffffffff8151428f>] efi_pstore_read+0x3f/0x50
[    1.144058]  [<ffffffff8128d7ba>] pstore_get_records+0x9a/0x150
[    1.158207]  [<ffffffff812af25c>] ? selinux_d_instantiate+0x1c/0x20
[    1.158207]  [<ffffffff8128ce30>] ? parse_options+0x80/0x80
[    1.158207]  [<ffffffff8128ced5>] pstore_fill_super+0xa5/0xc0
[    1.158207]  [<ffffffff811ae7d2>] mount_single+0xa2/0xd0
[    1.158207]  [<ffffffff8128ccf8>] pstore_mount+0x18/0x20
[    1.158207]  [<ffffffff811ae8b9>] mount_fs+0x39/0x1b0
[    1.158207]  [<ffffffff81160550>] ? __alloc_percpu+0x10/0x20
[    1.158207]  [<ffffffff811c9493>] vfs_kern_mount+0x63/0xf0
[    1.158207]  [<ffffffff811cbb0e>] do_mount+0x23e/0xa20
[    1.158207]  [<ffffffff8115b51b>] ? strndup_user+0x4b/0xf0
[    1.158207]  [<ffffffff811cc373>] SyS_mount+0x83/0xc0
[    1.158207]  [<ffffffff81673cc2>] system_call_fastpath+0x16/0x1b
[    1.158207] ---[ end trace 61981bc62de9f6f4 ]---

Signed-off-by: Seiji Aguchi <seiji.aguchi@hds.com>
Tested-by: Madper Xie <cxie@redhat.com>
Cc: stable@kernel.org
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 drivers/firmware/efi/efi-pstore.c | 143 +++++++++++++++++++++++++++++++++++---
 drivers/firmware/efi/efivars.c    |  12 ++--
 drivers/firmware/efi/vars.c       |  12 +++-
 include/linux/efi.h               |   4 ++
 4 files changed, 155 insertions(+), 16 deletions(-)

diff --git a/drivers/firmware/efi/efi-pstore.c b/drivers/firmware/efi/efi-pstore.c
index 5002d50e3781..6ce31e93da55 100644
--- a/drivers/firmware/efi/efi-pstore.c
+++ b/drivers/firmware/efi/efi-pstore.c
@@ -18,14 +18,12 @@ module_param_named(pstore_disable, efivars_pstore_disable, bool, 0644);
 
 static int efi_pstore_open(struct pstore_info *psi)
 {
-	efivar_entry_iter_begin();
 	psi->data = NULL;
 	return 0;
 }
 
 static int efi_pstore_close(struct pstore_info *psi)
 {
-	efivar_entry_iter_end();
 	psi->data = NULL;
 	return 0;
 }
@@ -91,19 +89,125 @@ static int efi_pstore_read_func(struct efivar_entry *entry, void *data)
 	__efivar_entry_get(entry, &entry->var.Attributes,
 			   &entry->var.DataSize, entry->var.Data);
 	size = entry->var.DataSize;
+	memcpy(*cb_data->buf, entry->var.Data,
+	       (size_t)min_t(unsigned long, EFIVARS_DATA_SIZE_MAX, size));
 
-	*cb_data->buf = kmemdup(entry->var.Data, size, GFP_KERNEL);
-	if (*cb_data->buf == NULL)
-		return -ENOMEM;
 	return size;
 }
 
+/**
+ * efi_pstore_scan_sysfs_enter
+ * @entry: scanning entry
+ * @next: next entry
+ * @head: list head
+ */
+static void efi_pstore_scan_sysfs_enter(struct efivar_entry *pos,
+					struct efivar_entry *next,
+					struct list_head *head)
+{
+	pos->scanning = true;
+	if (&next->list != head)
+		next->scanning = true;
+}
+
+/**
+ * __efi_pstore_scan_sysfs_exit
+ * @entry: deleting entry
+ * @turn_off_scanning: Check if a scanning flag should be turned off
+ */
+static inline void __efi_pstore_scan_sysfs_exit(struct efivar_entry *entry,
+						bool turn_off_scanning)
+{
+	if (entry->deleting) {
+		list_del(&entry->list);
+		efivar_entry_iter_end();
+		efivar_unregister(entry);
+		efivar_entry_iter_begin();
+	} else if (turn_off_scanning)
+		entry->scanning = false;
+}
+
+/**
+ * efi_pstore_scan_sysfs_exit
+ * @pos: scanning entry
+ * @next: next entry
+ * @head: list head
+ * @stop: a flag checking if scanning will stop
+ */
+static void efi_pstore_scan_sysfs_exit(struct efivar_entry *pos,
+				       struct efivar_entry *next,
+				       struct list_head *head, bool stop)
+{
+	__efi_pstore_scan_sysfs_exit(pos, true);
+	if (stop)
+		__efi_pstore_scan_sysfs_exit(next, &next->list != head);
+}
+
+/**
+ * efi_pstore_sysfs_entry_iter
+ *
+ * @data: function-specific data to pass to callback
+ * @pos: entry to begin iterating from
+ *
+ * You MUST call efivar_enter_iter_begin() before this function, and
+ * efivar_entry_iter_end() afterwards.
+ *
+ * It is possible to begin iteration from an arbitrary entry within
+ * the list by passing @pos. @pos is updated on return to point to
+ * the next entry of the last one passed to efi_pstore_read_func().
+ * To begin iterating from the beginning of the list @pos must be %NULL.
+ */
+static int efi_pstore_sysfs_entry_iter(void *data, struct efivar_entry **pos)
+{
+	struct efivar_entry *entry, *n;
+	struct list_head *head = &efivar_sysfs_list;
+	int size = 0;
+
+	if (!*pos) {
+		list_for_each_entry_safe(entry, n, head, list) {
+			efi_pstore_scan_sysfs_enter(entry, n, head);
+
+			size = efi_pstore_read_func(entry, data);
+			efi_pstore_scan_sysfs_exit(entry, n, head, size < 0);
+			if (size)
+				break;
+		}
+		*pos = n;
+		return size;
+	}
+
+	list_for_each_entry_safe_from((*pos), n, head, list) {
+		efi_pstore_scan_sysfs_enter((*pos), n, head);
+
+		size = efi_pstore_read_func((*pos), data);
+		efi_pstore_scan_sysfs_exit((*pos), n, head, size < 0);
+		if (size)
+			break;
+	}
+	*pos = n;
+	return size;
+}
+
+/**
+ * efi_pstore_read
+ *
+ * This function returns a size of NVRAM entry logged via efi_pstore_write().
+ * The meaning and behavior of efi_pstore/pstore are as below.
+ *
+ * size > 0: Got data of an entry logged via efi_pstore_write() successfully,
+ *           and pstore filesystem will continue reading subsequent entries.
+ * size == 0: Entry was not logged via efi_pstore_write(),
+ *            and efi_pstore driver will continue reading subsequent entries.
+ * size < 0: Failed to get data of entry logging via efi_pstore_write(),
+ *           and pstore will stop reading entry.
+ */
 static ssize_t efi_pstore_read(u64 *id, enum pstore_type_id *type,
 			       int *count, struct timespec *timespec,
 			       char **buf, bool *compressed,
 			       struct pstore_info *psi)
 {
 	struct pstore_read_data data;
+	ssize_t size;
 
 	data.id = id;
 	data.type = type;
@@ -112,8 +216,17 @@ static ssize_t efi_pstore_read(u64 *id, enum pstore_type_id *type,
 	data.compressed = compressed;
 	data.buf = buf;
 
-	return __efivar_entry_iter(efi_pstore_read_func, &efivar_sysfs_list, &data,
-				   (struct efivar_entry **)&psi->data);
+	*data.buf = kzalloc(EFIVARS_DATA_SIZE_MAX, GFP_KERNEL);
+	if (!*data.buf)
+		return -ENOMEM;
+
+	efivar_entry_iter_begin();
+	size = efi_pstore_sysfs_entry_iter(&data,
+					   (struct efivar_entry **)&psi->data);
+	efivar_entry_iter_end();
+	if (size <= 0)
+		kfree(*data.buf);
+	return size;
 }
 
 static int efi_pstore_write(enum pstore_type_id type,
@@ -184,9 +297,17 @@ static int efi_pstore_erase_func(struct efivar_entry *entry, void *data)
 			return 0;
 	}
 
+	if (entry->scanning) {
+		/*
+		 * Skip deletion because this entry will be deleted
+		 * after scanning is completed.
+		 */
+		entry->deleting = true;
+	} else
+		list_del(&entry->list);
+
 	/* found */
 	__efivar_entry_delete(entry);
-	list_del(&entry->list);
 
 	return 1;
 }
@@ -214,10 +335,12 @@ static int efi_pstore_erase(enum pstore_type_id type, u64 id, int count,
 
 	efivar_entry_iter_begin();
 	found = __efivar_entry_iter(efi_pstore_erase_func, &efivar_sysfs_list, &edata, &entry);
-	efivar_entry_iter_end();
 
-	if (found)
+	if (found && !entry->scanning) {
+		efivar_entry_iter_end();
 		efivar_unregister(entry);
+	} else
+		efivar_entry_iter_end();
 
 	return 0;
 }
diff --git a/drivers/firmware/efi/efivars.c b/drivers/firmware/efi/efivars.c
index 933eb027d527..3dc248239197 100644
--- a/drivers/firmware/efi/efivars.c
+++ b/drivers/firmware/efi/efivars.c
@@ -383,12 +383,16 @@ static ssize_t efivar_delete(struct file *filp, struct kobject *kobj,
 	else if (__efivar_entry_delete(entry))
 		err = -EIO;
 
-	efivar_entry_iter_end();
-
-	if (err)
+	if (err) {
+		efivar_entry_iter_end();
 		return err;
+	}
 
-	efivar_unregister(entry);
+	if (!entry->scanning) {
+		efivar_entry_iter_end();
+		efivar_unregister(entry);
+	} else
+		efivar_entry_iter_end();
 
 	/* It's dead Jim.... */
 	return count;
diff --git a/drivers/firmware/efi/vars.c b/drivers/firmware/efi/vars.c
index 391c67b182d9..b22659cccca4 100644
--- a/drivers/firmware/efi/vars.c
+++ b/drivers/firmware/efi/vars.c
@@ -683,8 +683,16 @@ struct efivar_entry *efivar_entry_find(efi_char16_t *name, efi_guid_t guid,
 	if (!found)
 		return NULL;
 
-	if (remove)
-		list_del(&entry->list);
+	if (remove) {
+		if (entry->scanning) {
+			/*
+			 * The entry will be deleted
+			 * after scanning is completed.
+			 */
+			entry->deleting = true;
+		} else
+			list_del(&entry->list);
+	}
 
 	return entry;
 }
diff --git a/include/linux/efi.h b/include/linux/efi.h
index bc5687d0f315..11ce6784a196 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -801,6 +801,8 @@ struct efivar_entry {
 	struct efi_variable var;
 	struct list_head list;
 	struct kobject kobj;
+	bool scanning;
+	bool deleting;
 };
 
 
@@ -866,6 +868,8 @@ void efivar_run_worker(void);
 #if defined(CONFIG_EFI_VARS) || defined(CONFIG_EFI_VARS_MODULE)
 int efivars_sysfs_init(void);
 
+#define EFIVARS_DATA_SIZE_MAX 1024
+
 #endif /* CONFIG_EFI_VARS */
 
 #endif /* _LINUX_EFI_H */
-- 
cgit 


From 1f3a8bae21a22808f242ccfb22aca37a635e261e Mon Sep 17 00:00:00 2001
From: Matt Fleming <matt.fleming@intel.com>
Date: Mon, 11 Nov 2013 16:18:59 +0000
Subject: x86/efi: Fix earlyprintk off-by-one bug

Dave reported seeing the following incorrect output on his Thinkpad T420
when using earlyprintk=efi,

[    0.000000] efi: EFI v2.00 by Lenovo
                    ACPI=0xdabfe000  ACPI 2.0=0xdabfe014 SMBIOS=0xdaa9e000

The output should be on one line, not split over two. The cause is an
off-by-one error when checking that the efi_y coordinate hasn't been
incremented out of bounds.

Reported-by: Dave Young <dyoung@redhat.com>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 arch/x86/platform/efi/early_printk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/platform/efi/early_printk.c b/arch/x86/platform/efi/early_printk.c
index 6599a0027b76..81b506d5befd 100644
--- a/arch/x86/platform/efi/early_printk.c
+++ b/arch/x86/platform/efi/early_printk.c
@@ -142,7 +142,7 @@ early_efi_write(struct console *con, const char *str, unsigned int num)
 			efi_y += font->height;
 		}
 
-		if (efi_y + font->height >= si->lfb_height) {
+		if (efi_y + font->height > si->lfb_height) {
 			u32 i;
 
 			efi_y -= font->height;
-- 
cgit 


From 1b28c3e628315ac0d9ef2d3fac0403f05ae692db Mon Sep 17 00:00:00 2001
From: Dave Airlie <airlied@redhat.com>
Date: Thu, 28 Nov 2013 05:39:03 +0000
Subject: drm/qxl: fix memory leak in release list handling

wow no idea how I got this far without seeing this,
leaking the entries in the list makes kmalloc-64 slab grow.

References: https://bugzilla.kernel.org/show_bug.cgi?id=65121
Cc: stable@vger.kernel.org
Reported-by: Matthew Stapleton <matthew4196@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---
 drivers/gpu/drm/qxl/qxl_release.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/qxl/qxl_release.c b/drivers/gpu/drm/qxl/qxl_release.c
index 0109a9644cb2..821ab7b9409b 100644
--- a/drivers/gpu/drm/qxl/qxl_release.c
+++ b/drivers/gpu/drm/qxl/qxl_release.c
@@ -92,6 +92,7 @@ qxl_release_free(struct qxl_device *qdev,
 						- DRM_FILE_OFFSET);
 		qxl_fence_remove_release(&bo->fence, release->id);
 		qxl_bo_unref(&bo);
+		kfree(entry);
 	}
 	spin_lock(&qdev->release_idr_lock);
 	idr_remove(&qdev->release_idr, release->id);
-- 
cgit 


From 31e20bad8d5871c6f8673c28ea26ab7a0e520086 Mon Sep 17 00:00:00 2001
From: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Date: Thu, 28 Nov 2013 18:31:05 +0100
Subject: diag: warn about missing first netlink attribute

The first netlink attribute (value 0) must always be defined as none/unspec.
This is correctly done in inet_diag.h, but other diag interfaces are wrong.

Because we cannot change an existing API, I add a comment to point the mistake
and avoid to propagate it in a new diag API in the future.

CC: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/uapi/linux/netlink_diag.h | 1 +
 include/uapi/linux/packet_diag.h  | 1 +
 include/uapi/linux/unix_diag.h    | 1 +
 3 files changed, 3 insertions(+)

diff --git a/include/uapi/linux/netlink_diag.h b/include/uapi/linux/netlink_diag.h
index 4e31db4eea41..f2159d30d1f5 100644
--- a/include/uapi/linux/netlink_diag.h
+++ b/include/uapi/linux/netlink_diag.h
@@ -33,6 +33,7 @@ struct netlink_diag_ring {
 };
 
 enum {
+	/* NETLINK_DIAG_NONE, standard nl API requires this attribute!  */
 	NETLINK_DIAG_MEMINFO,
 	NETLINK_DIAG_GROUPS,
 	NETLINK_DIAG_RX_RING,
diff --git a/include/uapi/linux/packet_diag.h b/include/uapi/linux/packet_diag.h
index b2cc0cd9c4d9..d08c63f3dd6f 100644
--- a/include/uapi/linux/packet_diag.h
+++ b/include/uapi/linux/packet_diag.h
@@ -29,6 +29,7 @@ struct packet_diag_msg {
 };
 
 enum {
+	/* PACKET_DIAG_NONE, standard nl API requires this attribute!  */
 	PACKET_DIAG_INFO,
 	PACKET_DIAG_MCLIST,
 	PACKET_DIAG_RX_RING,
diff --git a/include/uapi/linux/unix_diag.h b/include/uapi/linux/unix_diag.h
index b9e2a6a7446f..1eb0b8dd1830 100644
--- a/include/uapi/linux/unix_diag.h
+++ b/include/uapi/linux/unix_diag.h
@@ -31,6 +31,7 @@ struct unix_diag_msg {
 };
 
 enum {
+	/* UNIX_DIAG_NONE, standard nl API requires this attribute!  */
 	UNIX_DIAG_NAME,
 	UNIX_DIAG_VFS,
 	UNIX_DIAG_PEER,
-- 
cgit 


From fe9d04afe9bee0ec37a9724937443b2c0e39ce4b Mon Sep 17 00:00:00 2001
From: dingtianhong <dingtianhong@huawei.com>
Date: Fri, 22 Nov 2013 22:28:43 +0800
Subject: bonding: disable arp and enable mii monitoring when bond change to no
 uses arp mode

Because the ARP monitoring is not support for 802.3ad, but I still
could change the mode to 802.3ad from ab mode while ARP monitoring
is running, it is incorrect.

So add a check for 802.3ad in bonding_store_mode to fix the problem,
and make a new macro BOND_NO_USES_ARP() to simplify the code.

v2: according to the Dan Williams's suggestion, bond mode is the most
    important bond option, it should override any of the other sub-options.
    So when the mode is changed, the conficting values should be cleared
    or reset, otherwise the user has to duplicate more operations to modify
    the logic. I disable the arp and enable mii monitoring when the bond mode
    is changed to AB, TB and 8023AD if the arp interval is true.

v3: according to the Nik's suggestion, the default value of miimon should need
    a name, there is several place to use it, and the bond_store_arp_interval()
    could use micro BOND_NO_USES_ARP to make the code more simpify.

Suggested-by: Dan Williams <dcbw@redhat.com>
Suggested-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: Ding Tianhong <dingtianhong@huawei.com>
Reviewed-by: Nikolay Aleksandrov <nikolay@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/bonding/bond_main.c    |  4 ++--
 drivers/net/bonding/bond_options.c | 13 +++++++++----
 drivers/net/bonding/bond_sysfs.c   |  4 +---
 drivers/net/bonding/bonding.h      |  7 +++++++
 4 files changed, 19 insertions(+), 9 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 4dd5ee2a34cc..36eab0c4fb33 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -4110,7 +4110,7 @@ static int bond_check_params(struct bond_params *params)
 		if (!miimon) {
 			pr_warning("Warning: miimon must be specified, otherwise bonding will not detect link failure, speed and duplex which are essential for 802.3ad operation\n");
 			pr_warning("Forcing miimon to 100msec\n");
-			miimon = 100;
+			miimon = BOND_DEFAULT_MIIMON;
 		}
 	}
 
@@ -4147,7 +4147,7 @@ static int bond_check_params(struct bond_params *params)
 		if (!miimon) {
 			pr_warning("Warning: miimon must be specified, otherwise bonding will not detect link failure and link speed which are essential for TLB/ALB load balancing\n");
 			pr_warning("Forcing miimon to 100msec\n");
-			miimon = 100;
+			miimon = BOND_DEFAULT_MIIMON;
 		}
 	}
 
diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c
index 9a5223c7b4d1..ea6f640782b7 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -45,10 +45,15 @@ int bond_option_mode_set(struct bonding *bond, int mode)
 		return -EPERM;
 	}
 
-	if (BOND_MODE_IS_LB(mode) && bond->params.arp_interval) {
-		pr_err("%s: %s mode is incompatible with arp monitoring.\n",
-		       bond->dev->name, bond_mode_tbl[mode].modename);
-		return -EINVAL;
+	if (BOND_NO_USES_ARP(mode) && bond->params.arp_interval) {
+		pr_info("%s: %s mode is incompatible with arp monitoring, start mii monitoring\n",
+			bond->dev->name, bond_mode_tbl[mode].modename);
+		/* disable arp monitoring */
+		bond->params.arp_interval = 0;
+		/* set miimon to default value */
+		bond->params.miimon = BOND_DEFAULT_MIIMON;
+		pr_info("%s: Setting MII monitoring interval to %d.\n",
+			bond->dev->name, bond->params.miimon);
 	}
 
 	/* don't cache arp_validate between modes */
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 0ec2a7e8c8a9..abf5e106edc5 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -523,9 +523,7 @@ static ssize_t bonding_store_arp_interval(struct device *d,
 		ret = -EINVAL;
 		goto out;
 	}
-	if (bond->params.mode == BOND_MODE_ALB ||
-	    bond->params.mode == BOND_MODE_TLB ||
-	    bond->params.mode == BOND_MODE_8023AD) {
+	if (BOND_NO_USES_ARP(bond->params.mode)) {
 		pr_info("%s: ARP monitoring cannot be used with ALB/TLB/802.3ad. Only MII monitoring is supported on %s.\n",
 			bond->dev->name, bond->dev->name);
 		ret = -EINVAL;
diff --git a/drivers/net/bonding/bonding.h b/drivers/net/bonding/bonding.h
index ca31286aa028..a9f4f9f4d8ce 100644
--- a/drivers/net/bonding/bonding.h
+++ b/drivers/net/bonding/bonding.h
@@ -35,6 +35,8 @@
 
 #define BOND_MAX_ARP_TARGETS	16
 
+#define BOND_DEFAULT_MIIMON	100
+
 #define IS_UP(dev)					   \
 	      ((((dev)->flags & IFF_UP) == IFF_UP)	&& \
 	       netif_running(dev)			&& \
@@ -55,6 +57,11 @@
 		 ((mode) == BOND_MODE_TLB)          ||	\
 		 ((mode) == BOND_MODE_ALB))
 
+#define BOND_NO_USES_ARP(mode)				\
+		(((mode) == BOND_MODE_8023AD)	||	\
+		 ((mode) == BOND_MODE_TLB)	||	\
+		 ((mode) == BOND_MODE_ALB))
+
 #define TX_QUEUE_OVERRIDE(mode)				\
 			(((mode) == BOND_MODE_ACTIVEBACKUP) ||	\
 			 ((mode) == BOND_MODE_ROUNDROBIN))
-- 
cgit 


From a2f4dfba9e736ebe339d560cb92678280b1eb5db Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Fri, 22 Nov 2013 22:07:57 -0800
Subject: tg3: Convert to use hwmon_device_register_with_groups

Use new hwmon API to simplify code, provide missing mandatory 'name'
sysfs attribute, and attach hwmon attributes to hwmon device instead
of pci device.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/broadcom/tg3.c | 25 ++++++-------------------
 1 file changed, 6 insertions(+), 19 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index a9e068423ba0..369b736dde05 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -10629,10 +10629,8 @@ static void tg3_sd_scan_scratchpad(struct tg3 *tp, struct tg3_ocir *ocir)
 static ssize_t tg3_show_temp(struct device *dev,
 			     struct device_attribute *devattr, char *buf)
 {
-	struct pci_dev *pdev = to_pci_dev(dev);
-	struct net_device *netdev = pci_get_drvdata(pdev);
-	struct tg3 *tp = netdev_priv(netdev);
 	struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
+	struct tg3 *tp = dev_get_drvdata(dev);
 	u32 temperature;
 
 	spin_lock_bh(&tp->lock);
@@ -10650,29 +10648,25 @@ static SENSOR_DEVICE_ATTR(temp1_crit, S_IRUGO, tg3_show_temp, NULL,
 static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO, tg3_show_temp, NULL,
 			  TG3_TEMP_MAX_OFFSET);
 
-static struct attribute *tg3_attributes[] = {
+static struct attribute *tg3_attrs[] = {
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	&sensor_dev_attr_temp1_crit.dev_attr.attr,
 	&sensor_dev_attr_temp1_max.dev_attr.attr,
 	NULL
 };
-
-static const struct attribute_group tg3_group = {
-	.attrs = tg3_attributes,
-};
+ATTRIBUTE_GROUPS(tg3);
 
 static void tg3_hwmon_close(struct tg3 *tp)
 {
 	if (tp->hwmon_dev) {
 		hwmon_device_unregister(tp->hwmon_dev);
 		tp->hwmon_dev = NULL;
-		sysfs_remove_group(&tp->pdev->dev.kobj, &tg3_group);
 	}
 }
 
 static void tg3_hwmon_open(struct tg3 *tp)
 {
-	int i, err;
+	int i;
 	u32 size = 0;
 	struct pci_dev *pdev = tp->pdev;
 	struct tg3_ocir ocirs[TG3_SD_NUM_RECS];
@@ -10690,18 +10684,11 @@ static void tg3_hwmon_open(struct tg3 *tp)
 	if (!size)
 		return;
 
-	/* Register hwmon sysfs hooks */
-	err = sysfs_create_group(&pdev->dev.kobj, &tg3_group);
-	if (err) {
-		dev_err(&pdev->dev, "Cannot create sysfs group, aborting\n");
-		return;
-	}
-
-	tp->hwmon_dev = hwmon_device_register(&pdev->dev);
+	tp->hwmon_dev = hwmon_device_register_with_groups(&pdev->dev, "tg3",
+							  tp, tg3_groups);
 	if (IS_ERR(tp->hwmon_dev)) {
 		tp->hwmon_dev = NULL;
 		dev_err(&pdev->dev, "Cannot register hwmon device, aborting\n");
-		sysfs_remove_group(&pdev->dev.kobj, &tg3_group);
 	}
 }
 
-- 
cgit 


From 0f0e2159c0c101426b705d70f43b9f423d51c869 Mon Sep 17 00:00:00 2001
From: Geert Uytterhoeven <geert@linux-m68k.org>
Date: Sat, 23 Nov 2013 13:01:50 +0100
Subject: genetlink: Fix uninitialized variable in
 genl_validate_assign_mc_groups()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

net/netlink/genetlink.c: In function ‘genl_validate_assign_mc_groups’:
net/netlink/genetlink.c:217: warning: ‘err’ may be used uninitialized in this
function

Commit 2a94fe48f32ccf7321450a2cc07f2b724a444e5b ("genetlink: make multicast
groups const, prevent abuse") split genl_register_mc_group() in multiple
functions, but dropped the initialization of err.

Initialize err to zero to fix this.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/netlink/genetlink.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 4518a57aa5fe..803206e82450 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -214,7 +214,7 @@ static int genl_validate_assign_mc_groups(struct genl_family *family)
 {
 	int first_id;
 	int n_groups = family->n_mcgrps;
-	int err, i;
+	int err = 0, i;
 	bool groups_allocated = false;
 
 	if (!n_groups)
-- 
cgit 


From 5e53e689b737526308db2b5c9f56e9d0371a1676 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Sun, 24 Nov 2013 21:09:26 +0100
Subject: genetlink/pmcraid: use proper genetlink multicast API

The pmcraid driver is abusing the genetlink API and is using its
family ID as the multicast group ID, which is invalid and may
belong to somebody else (and likely will.)

Make it use the correct API, but since this may already be used
as-is by userspace, reserve a family ID for this code and also
reserve that group ID to not break userspace assumptions.

My previous patch broke event delivery in the driver as I missed
that it wasn't using the right API and forgot to update it later
in my series.

While changing this, I noticed that the genetlink code could use
the static group ID instead of a strcmp(), so also do that for
the VFS_DQUOT family.

Cc: Anil Ravindranath <anil_ravindranath@pmc-sierra.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/scsi/pmcraid.c         | 20 +++++++++++++++-----
 include/uapi/linux/genetlink.h |  1 +
 net/netlink/genetlink.c        | 11 +++++++++--
 3 files changed, 25 insertions(+), 7 deletions(-)

diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index bd6f743d87a7..892ea6161376 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -1404,11 +1404,22 @@ enum {
 };
 #define PMCRAID_AEN_CMD_MAX (__PMCRAID_AEN_CMD_MAX - 1)
 
+static struct genl_multicast_group pmcraid_mcgrps[] = {
+	{ .name = "events", /* not really used - see ID discussion below */ },
+};
+
 static struct genl_family pmcraid_event_family = {
-	.id = GENL_ID_GENERATE,
+	/*
+	 * Due to prior multicast group abuse (the code having assumed that
+	 * the family ID can be used as a multicast group ID) we need to
+	 * statically allocate a family (and thus group) ID.
+	 */
+	.id = GENL_ID_PMCRAID,
 	.name = "pmcraid",
 	.version = 1,
-	.maxattr = PMCRAID_AEN_ATTR_MAX
+	.maxattr = PMCRAID_AEN_ATTR_MAX,
+	.mcgrps = pmcraid_mcgrps,
+	.n_mcgrps = ARRAY_SIZE(pmcraid_mcgrps),
 };
 
 /**
@@ -1511,9 +1522,8 @@ static int pmcraid_notify_aen(
 		return result;
 	}
 
-	result =
-		genlmsg_multicast(&pmcraid_event_family, skb, 0,
-				  pmcraid_event_family.id, GFP_ATOMIC);
+	result = genlmsg_multicast(&pmcraid_event_family, skb,
+				   0, 0, GFP_ATOMIC);
 
 	/* If there are no listeners, genlmsg_multicast may return non-zero
 	 * value.
diff --git a/include/uapi/linux/genetlink.h b/include/uapi/linux/genetlink.h
index 1af72d8228e0..c3363ba1ae05 100644
--- a/include/uapi/linux/genetlink.h
+++ b/include/uapi/linux/genetlink.h
@@ -28,6 +28,7 @@ struct genlmsghdr {
 #define GENL_ID_GENERATE	0
 #define GENL_ID_CTRL		NLMSG_MIN_TYPE
 #define GENL_ID_VFS_DQUOT	(NLMSG_MIN_TYPE + 1)
+#define GENL_ID_PMCRAID		(NLMSG_MIN_TYPE + 2)
 
 /**************************************************************************
  * Controller
diff --git a/net/netlink/genetlink.c b/net/netlink/genetlink.c
index 803206e82450..713671ae45af 100644
--- a/net/netlink/genetlink.c
+++ b/net/netlink/genetlink.c
@@ -74,9 +74,12 @@ static struct list_head family_ht[GENL_FAM_TAB_SIZE];
  * Bit 17 is marked as already used since the VFS quota code
  * also abused this API and relied on family == group ID, we
  * cater to that by giving it a static family and group ID.
+ * Bit 18 is marked as already used since the PMCRAID driver
+ * did the same thing as the VFS quota code (maybe copied?)
  */
 static unsigned long mc_group_start = 0x3 | BIT(GENL_ID_CTRL) |
-				      BIT(GENL_ID_VFS_DQUOT);
+				      BIT(GENL_ID_VFS_DQUOT) |
+				      BIT(GENL_ID_PMCRAID);
 static unsigned long *mc_groups = &mc_group_start;
 static unsigned long mc_groups_longs = 1;
 
@@ -139,6 +142,7 @@ static u16 genl_generate_id(void)
 
 	for (i = 0; i <= GENL_MAX_ID - GENL_MIN_ID; i++) {
 		if (id_gen_idx != GENL_ID_VFS_DQUOT &&
+		    id_gen_idx != GENL_ID_PMCRAID &&
 		    !genl_family_find_byid(id_gen_idx))
 			return id_gen_idx;
 		if (++id_gen_idx > GENL_MAX_ID)
@@ -236,9 +240,12 @@ static int genl_validate_assign_mc_groups(struct genl_family *family)
 	} else if (strcmp(family->name, "NET_DM") == 0) {
 		first_id = 1;
 		BUG_ON(n_groups != 1);
-	} else if (strcmp(family->name, "VFS_DQUOT") == 0) {
+	} else if (family->id == GENL_ID_VFS_DQUOT) {
 		first_id = GENL_ID_VFS_DQUOT;
 		BUG_ON(n_groups != 1);
+	} else if (family->id == GENL_ID_PMCRAID) {
+		first_id = GENL_ID_PMCRAID;
+		BUG_ON(n_groups != 1);
 	} else {
 		groups_allocated = true;
 		err = genl_allocate_reserve_groups(n_groups, &first_id);
-- 
cgit 


From 6eabca54d6781f61c7318517c1463a098acb7a87 Mon Sep 17 00:00:00 2001
From: Xufeng Zhang <xufeng.zhang@windriver.com>
Date: Mon, 25 Nov 2013 11:26:57 +0800
Subject: sctp: Restore 'resent' bit to avoid retransmitted chunks for RTT
 measurements

Currently retransmitted DATA chunks could also be used for
RTT measurements since there are no flag to identify whether
the transmitted DATA chunk is a new one or a retransmitted one.
This problem is introduced by commit ae19c5486 ("sctp: remove
'resent' bit from the chunk") which inappropriately removed the
'resent' bit completely, instead of doing this, we should set
the resent bit only for the retransmitted DATA chunks.

Signed-off-by: Xufeng Zhang <xufeng.zhang@windriver.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/net/sctp/structs.h | 1 +
 net/sctp/output.c          | 3 ++-
 net/sctp/outqueue.c        | 3 +++
 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h
index 2174d8da0770..ea0ca5f6e629 100644
--- a/include/net/sctp/structs.h
+++ b/include/net/sctp/structs.h
@@ -629,6 +629,7 @@ struct sctp_chunk {
 #define SCTP_NEED_FRTX 0x1
 #define SCTP_DONT_FRTX 0x2
 	__u16	rtt_in_progress:1,	/* This chunk used for RTT calc? */
+		resent:1,		/* Has this chunk ever been resent. */
 		has_tsn:1,		/* Does this chunk have a TSN yet? */
 		has_ssn:1,		/* Does this chunk have a SSN yet? */
 		singleton:1,		/* Only chunk in the packet? */
diff --git a/net/sctp/output.c b/net/sctp/output.c
index e650978daf27..0e2644d0a773 100644
--- a/net/sctp/output.c
+++ b/net/sctp/output.c
@@ -474,10 +474,11 @@ int sctp_packet_transmit(struct sctp_packet *packet)
 			 * for a given destination transport address.
 			 */
 
-			if (!tp->rto_pending) {
+			if (!chunk->resent && !tp->rto_pending) {
 				chunk->rtt_in_progress = 1;
 				tp->rto_pending = 1;
 			}
+
 			has_data = 1;
 		}
 
diff --git a/net/sctp/outqueue.c b/net/sctp/outqueue.c
index abb6db008df1..f51ba985a36e 100644
--- a/net/sctp/outqueue.c
+++ b/net/sctp/outqueue.c
@@ -446,6 +446,8 @@ void sctp_retransmit_mark(struct sctp_outq *q,
 				transport->rto_pending = 0;
 			}
 
+			chunk->resent = 1;
+
 			/* Move the chunk to the retransmit queue. The chunks
 			 * on the retransmit queue are always kept in order.
 			 */
@@ -1375,6 +1377,7 @@ static void sctp_check_transmitted(struct sctp_outq *q,
 				 * instance).
 				 */
 				if (!tchunk->tsn_gap_acked &&
+				    !tchunk->resent &&
 				    tchunk->rtt_in_progress) {
 					tchunk->rtt_in_progress = 0;
 					rtt = jiffies - tchunk->sent_at;
-- 
cgit 


From 167f76a87743dfaf1fec954db5233715ddad49ef Mon Sep 17 00:00:00 2001
From: Shaohui Xie <Shaohui.Xie@freescale.com>
Date: Mon, 25 Nov 2013 12:40:49 +0800
Subject: phy: Add Vitesse 8514 phy ID

Phy is compatible with Vitesse 82xx

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/phy/vitesse.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/net/phy/vitesse.c b/drivers/net/phy/vitesse.c
index 508e4359338b..14372c65a7e8 100644
--- a/drivers/net/phy/vitesse.c
+++ b/drivers/net/phy/vitesse.c
@@ -64,6 +64,7 @@
 
 #define PHY_ID_VSC8234			0x000fc620
 #define PHY_ID_VSC8244			0x000fc6c0
+#define PHY_ID_VSC8514			0x00070670
 #define PHY_ID_VSC8574			0x000704a0
 #define PHY_ID_VSC8662			0x00070660
 #define PHY_ID_VSC8221			0x000fc550
@@ -131,6 +132,7 @@ static int vsc82xx_config_intr(struct phy_device *phydev)
 		err = phy_write(phydev, MII_VSC8244_IMASK,
 			(phydev->drv->phy_id == PHY_ID_VSC8234 ||
 			 phydev->drv->phy_id == PHY_ID_VSC8244 ||
+			 phydev->drv->phy_id == PHY_ID_VSC8514 ||
 			 phydev->drv->phy_id == PHY_ID_VSC8574) ?
 				MII_VSC8244_IMASK_MASK :
 				MII_VSC8221_IMASK_MASK);
@@ -245,6 +247,18 @@ static struct phy_driver vsc82xx_driver[] = {
 	.ack_interrupt	= &vsc824x_ack_interrupt,
 	.config_intr	= &vsc82xx_config_intr,
 	.driver		= { .owner = THIS_MODULE,},
+}, {
+	.phy_id		= PHY_ID_VSC8514,
+	.name		= "Vitesse VSC8514",
+	.phy_id_mask	= 0x000ffff0,
+	.features	= PHY_GBIT_FEATURES,
+	.flags		= PHY_HAS_INTERRUPT,
+	.config_init	= &vsc824x_config_init,
+	.config_aneg	= &vsc82x4_config_aneg,
+	.read_status	= &genphy_read_status,
+	.ack_interrupt	= &vsc824x_ack_interrupt,
+	.config_intr	= &vsc82xx_config_intr,
+	.driver		= { .owner = THIS_MODULE,},
 }, {
 	.phy_id         = PHY_ID_VSC8574,
 	.name           = "Vitesse VSC8574",
@@ -315,6 +329,7 @@ module_exit(vsc82xx_exit);
 static struct mdio_device_id __maybe_unused vitesse_tbl[] = {
 	{ PHY_ID_VSC8234, 0x000ffff0 },
 	{ PHY_ID_VSC8244, 0x000fffc0 },
+	{ PHY_ID_VSC8514, 0x000ffff0 },
 	{ PHY_ID_VSC8574, 0x000ffff0 },
 	{ PHY_ID_VSC8662, 0x000ffff0 },
 	{ PHY_ID_VSC8221, 0x000ffff0 },
-- 
cgit 


From cd3e22b75c01fe1e075d91504b29019a05d8d373 Mon Sep 17 00:00:00 2001
From: Jason Wang <jasowang@redhat.com>
Date: Mon, 25 Nov 2013 17:19:04 +0800
Subject: macvtap: fix tx_dropped counting error

After commit 8ffab51b3dfc54876f145f15b351c41f3f703195
(macvlan: lockless tx path), tx stat counter were converted to percpu stat
structure. So we need use to this also for tx_dropped in macvtap. Otherwise, the
management won't notice the dropping packet in macvtap tx path.

Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Vlad Yasevich <vyasevic@redhat.com>
Cc: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/macvtap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index dc76670c2f2a..0605da8e25f5 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -744,7 +744,7 @@ err:
 	rcu_read_lock();
 	vlan = rcu_dereference(q->vlan);
 	if (vlan)
-		vlan->dev->stats.tx_dropped++;
+		this_cpu_inc(vlan->pcpu_stats->tx_dropped);
 	rcu_read_unlock();
 
 	return err;
-- 
cgit 


From 66028310aedc782e3a9a221f1a9ec12b7e587e50 Mon Sep 17 00:00:00 2001
From: Gao feng <gaofeng@cn.fujitsu.com>
Date: Mon, 25 Nov 2013 17:21:24 +0800
Subject: sit: use kfree_skb to replace dev_kfree_skb

In failure case, we should use kfree_skb not
dev_kfree_skb to free skbuff, dev_kfree_skb
is defined as consume_skb.

Trace takes advantage of this point.

Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/sit.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/ipv6/sit.c b/net/ipv6/sit.c
index 8435267836a7..366fbba3359a 100644
--- a/net/ipv6/sit.c
+++ b/net/ipv6/sit.c
@@ -951,7 +951,7 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
 		if (!new_skb) {
 			ip_rt_put(rt);
 			dev->stats.tx_dropped++;
-			dev_kfree_skb(skb);
+			kfree_skb(skb);
 			return NETDEV_TX_OK;
 		}
 		if (skb->sk)
@@ -977,7 +977,7 @@ static netdev_tx_t ipip6_tunnel_xmit(struct sk_buff *skb,
 tx_error_icmp:
 	dst_link_failure(skb);
 tx_error:
-	dev_kfree_skb(skb);
+	kfree_skb(skb);
 out:
 	dev->stats.tx_errors++;
 	return NETDEV_TX_OK;
@@ -1017,7 +1017,7 @@ static netdev_tx_t sit_tunnel_xmit(struct sk_buff *skb,
 
 tx_err:
 	dev->stats.tx_errors++;
-	dev_kfree_skb(skb);
+	kfree_skb(skb);
 	return NETDEV_TX_OK;
 
 }
-- 
cgit 


From ae5e8127b712313ec1b99356019ce9226fea8b88 Mon Sep 17 00:00:00 2001
From: Andy Whitcroft <apw@canonical.com>
Date: Mon, 25 Nov 2013 16:52:34 +0000
Subject: xen-netback: include definition of csum_ipv6_magic

We are now using csum_ipv6_magic, include the appropriate header.
Avoids the following error:

    drivers/net/xen-netback/netback.c:1313:4: error: implicit declaration of function 'csum_ipv6_magic' [-Werror=implicit-function-declaration]
        tcph->check = ~csum_ipv6_magic(&ipv6h->saddr,

Signed-off-by: Andy Whitcroft <apw@canonical.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/xen-netback/netback.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 919b6509455c..64f0e0d18b81 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -39,6 +39,7 @@
 #include <linux/udp.h>
 
 #include <net/tcp.h>
+#include <net/ip6_checksum.h>
 
 #include <xen/xen.h>
 #include <xen/events.h>
-- 
cgit 


From bc9627e7e918a85e906c1a3f6d01d9b8ef911a96 Mon Sep 17 00:00:00 2001
From: françois romieu <romieu@fr.zoreil.com>
Date: Tue, 26 Nov 2013 00:40:58 +0100
Subject: via-velocity: fix netif_receive_skb use in irq disabled section.

2fdac010bdcf10a30711b6924612dfc40daf19b8 ("via-velocity.c: update napi
implementation") overlooked an irq disabling spinlock when the Rx part
of the NAPI poll handler was converted from netif_rx to netif_receive_skb.

NAPI Rx processing can be taken out of the locked section with a pair of
napi_{disable / enable} since it only races with the MTU change function.

An heavier rework of the NAPI locking would be able to perform NAPI Tx
before Rx where I simply removed one of velocity_tx_srv calls.

References: https://bugzilla.redhat.com/show_bug.cgi?id=1022733
Fixes: 2fdac010bdcf (via-velocity.c: update napi implementation)
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Tested-by: Alex A. Schmidt <aaschmidt1@gmail.com>
Cc: Jamie Heilman <jamie@audible.transient.net>
Cc: Michele Baldessari <michele@acksyn.org>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/via/via-velocity.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/via/via-velocity.c b/drivers/net/ethernet/via/via-velocity.c
index d022bf936572..ad61d26a44f3 100644
--- a/drivers/net/ethernet/via/via-velocity.c
+++ b/drivers/net/ethernet/via/via-velocity.c
@@ -2172,16 +2172,13 @@ static int velocity_poll(struct napi_struct *napi, int budget)
 	unsigned int rx_done;
 	unsigned long flags;
 
-	spin_lock_irqsave(&vptr->lock, flags);
 	/*
 	 * Do rx and tx twice for performance (taken from the VIA
 	 * out-of-tree driver).
 	 */
-	rx_done = velocity_rx_srv(vptr, budget / 2);
-	velocity_tx_srv(vptr);
-	rx_done += velocity_rx_srv(vptr, budget - rx_done);
+	rx_done = velocity_rx_srv(vptr, budget);
+	spin_lock_irqsave(&vptr->lock, flags);
 	velocity_tx_srv(vptr);
-
 	/* If budget not fully consumed, exit the polling mode */
 	if (rx_done < budget) {
 		napi_complete(napi);
@@ -2342,6 +2339,8 @@ static int velocity_change_mtu(struct net_device *dev, int new_mtu)
 		if (ret < 0)
 			goto out_free_tmp_vptr_1;
 
+		napi_disable(&vptr->napi);
+
 		spin_lock_irqsave(&vptr->lock, flags);
 
 		netif_stop_queue(dev);
@@ -2362,6 +2361,8 @@ static int velocity_change_mtu(struct net_device *dev, int new_mtu)
 
 		velocity_give_many_rx_descs(vptr);
 
+		napi_enable(&vptr->napi);
+
 		mac_enable_int(vptr->mac_regs);
 		netif_start_queue(dev);
 
-- 
cgit 


From 39af0c409e8c06b51caf7dc43e49ef96ae790a55 Mon Sep 17 00:00:00 2001
From: Baker Zhang <Baker.kernel@gmail.com>
Date: Tue, 26 Nov 2013 09:29:15 +0800
Subject: net: remove outdated comment for ipv4 and ipv6 protocol handler

since f9242b6b28d61295f2bf7e8adfb1060b382e5381
inet: Sanitize inet{,6} protocol demux.

there are not pretended hash tables for ipv4 or
ipv6 protocol handler.

Signed-off-by: Baker Zhang <Baker.kernel@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/protocol.c | 8 --------
 net/ipv6/protocol.c | 4 ----
 2 files changed, 12 deletions(-)

diff --git a/net/ipv4/protocol.c b/net/ipv4/protocol.c
index ce848461acbb..46d6a1c923a8 100644
--- a/net/ipv4/protocol.c
+++ b/net/ipv4/protocol.c
@@ -31,10 +31,6 @@
 const struct net_protocol __rcu *inet_protos[MAX_INET_PROTOS] __read_mostly;
 const struct net_offload __rcu *inet_offloads[MAX_INET_PROTOS] __read_mostly;
 
-/*
- *	Add a protocol handler to the hash tables
- */
-
 int inet_add_protocol(const struct net_protocol *prot, unsigned char protocol)
 {
 	if (!prot->netns_ok) {
@@ -55,10 +51,6 @@ int inet_add_offload(const struct net_offload *prot, unsigned char protocol)
 }
 EXPORT_SYMBOL(inet_add_offload);
 
-/*
- *	Remove a protocol from the hash tables.
- */
-
 int inet_del_protocol(const struct net_protocol *prot, unsigned char protocol)
 {
 	int ret;
diff --git a/net/ipv6/protocol.c b/net/ipv6/protocol.c
index 22d1bd4670da..e048cf1bb6a2 100644
--- a/net/ipv6/protocol.c
+++ b/net/ipv6/protocol.c
@@ -36,10 +36,6 @@ int inet6_add_protocol(const struct inet6_protocol *prot, unsigned char protocol
 }
 EXPORT_SYMBOL(inet6_add_protocol);
 
-/*
- *	Remove a protocol from the hash tables.
- */
-
 int inet6_del_protocol(const struct inet6_protocol *prot, unsigned char protocol)
 {
 	int ret;
-- 
cgit 


From 55485e7b417b640870b14eceec4cfbcb2b3e7a92 Mon Sep 17 00:00:00 2001
From: Ivan Vecera <ivecera@redhat.com>
Date: Tue, 26 Nov 2013 17:54:41 +0100
Subject: be2net: call napi_disable() for all event queues

The recent be2net commit 6384a4d (adds a support for busy polling)
introduces a regression that results in kernel crash. It incorrectly
modified be_close() so napi_disable() is called only for the first queue.
This breaks a correct pairing of napi_enable/_disable for the rest
of event queues and causes a crash in subsequent be_open() call.

Cc: Sathya Perla <sathya.perla@emulex.com>
Cc: Subbu Seetharaman <subbu.seetharaman@emulex.com>
Cc: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Acked-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 78a0e859760b..0aec4d23eb58 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -2663,8 +2663,8 @@ static int be_close(struct net_device *netdev)
 			napi_disable(&eqo->napi);
 			be_disable_busy_poll(eqo);
 		}
-		adapter->flags &= ~BE_FLAGS_NAPI_ENABLED;
 	}
+	adapter->flags &= ~BE_FLAGS_NAPI_ENABLED;
 
 	be_async_mcc_disable(adapter);
 
-- 
cgit 


From 71237b6feb8361a00a1cb481a0c901fbee8f82a5 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Thu, 28 Nov 2013 18:53:36 -0500
Subject: Revert "be2net: call napi_disable() for all event queues"

This reverts commit 55485e7b417b640870b14eceec4cfbcb2b3e7a92.

I applied the wrong version of this patch, the right one is coming up
next.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be_main.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 0aec4d23eb58..78a0e859760b 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -2663,8 +2663,8 @@ static int be_close(struct net_device *netdev)
 			napi_disable(&eqo->napi);
 			be_disable_busy_poll(eqo);
 		}
+		adapter->flags &= ~BE_FLAGS_NAPI_ENABLED;
 	}
-	adapter->flags &= ~BE_FLAGS_NAPI_ENABLED;
 
 	be_async_mcc_disable(adapter);
 
-- 
cgit 


From dff345c5c85df3c5853491b007f6b1b578dc28a4 Mon Sep 17 00:00:00 2001
From: Ivan Vecera <ivecera@redhat.com>
Date: Wed, 27 Nov 2013 08:59:32 +0100
Subject: be2net: call napi_disable() for all event queues

The recent be2net commit 6384a4d (adds a support for busy polling)
introduces a regression that results in kernel crash. It incorrectly
modified be_close() so napi_disable() is called only for the first queue.
This breaks a correct pairing of napi_enable/_disable for the rest
of event queues and causes a crash in subsequent be_open() call.

v2: Applied suggestions from Sathya

Fixes: 6384a4d ("be2net: add support for ndo_busy_poll")
Cc: Sathya Perla <sathya.perla@emulex.com>
Cc: Subbu Seetharaman <subbu.seetharaman@emulex.com>
Cc: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: Ivan Vecera <ivecera@redhat.com>
Acked-by: Sathya Perla <sathya.perla@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/emulex/benet/be_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 78a0e859760b..fee64bf10446 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -2658,8 +2658,8 @@ static int be_close(struct net_device *netdev)
 
 	be_roce_dev_close(adapter);
 
-	for_all_evt_queues(adapter, eqo, i) {
-		if (adapter->flags & BE_FLAGS_NAPI_ENABLED) {
+	if (adapter->flags & BE_FLAGS_NAPI_ENABLED) {
+		for_all_evt_queues(adapter, eqo, i) {
 			napi_disable(&eqo->napi);
 			be_disable_busy_poll(eqo);
 		}
-- 
cgit 


From 54b2b50c20a61b51199bedb6e5d2f8ec2568fb43 Mon Sep 17 00:00:00 2001
From: "Martin K. Petersen" <martin.petersen@oracle.com>
Date: Wed, 23 Oct 2013 06:25:40 -0400
Subject: [SCSI] Disable WRITE SAME for RAID and virtual host adapter drivers

Some host adapters do not pass commands through to the target disk
directly. Instead they provide an emulated target which may or may not
accurately report its capabilities. In some cases the physical device
characteristics are reported even when the host adapter is processing
commands on the device's behalf. This can lead to adapter firmware hangs
or excessive I/O errors.

This patch disables WRITE SAME for devices connected to host adapters
that provide an emulated target. Driver writers can disable WRITE SAME
by setting the no_write_same flag in the host adapter template.

[jejb: fix up rejections due to eh_deadline patch]
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/ata/libata-scsi.c                 | 1 +
 drivers/firewire/sbp2.c                   | 1 +
 drivers/scsi/3w-9xxx.c                    | 3 ++-
 drivers/scsi/3w-sas.c                     | 3 ++-
 drivers/scsi/3w-xxxx.c                    | 3 ++-
 drivers/scsi/aacraid/linit.c              | 1 +
 drivers/scsi/arcmsr/arcmsr_hba.c          | 1 +
 drivers/scsi/gdth.c                       | 1 +
 drivers/scsi/hosts.c                      | 1 +
 drivers/scsi/hpsa.c                       | 1 +
 drivers/scsi/ipr.c                        | 3 ++-
 drivers/scsi/ips.c                        | 1 +
 drivers/scsi/megaraid.c                   | 1 +
 drivers/scsi/megaraid/megaraid_mbox.c     | 1 +
 drivers/scsi/megaraid/megaraid_sas_base.c | 1 +
 drivers/scsi/pmcraid.c                    | 1 +
 drivers/scsi/sd.c                         | 6 ++++++
 drivers/scsi/storvsc_drv.c                | 1 +
 include/scsi/scsi_host.h                  | 6 ++++++
 19 files changed, 33 insertions(+), 4 deletions(-)

diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index db6dfcfa3e2e..ab58556d347c 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3625,6 +3625,7 @@ int ata_scsi_add_hosts(struct ata_host *host, struct scsi_host_template *sht)
 		shost->max_lun = 1;
 		shost->max_channel = 1;
 		shost->max_cmd_len = 16;
+		shost->no_write_same = 1;
 
 		/* Schedule policy is determined by ->qc_defer()
 		 * callback and it needs to see every deferred qc.
diff --git a/drivers/firewire/sbp2.c b/drivers/firewire/sbp2.c
index 281029daf98c..b0bb056458a3 100644
--- a/drivers/firewire/sbp2.c
+++ b/drivers/firewire/sbp2.c
@@ -1623,6 +1623,7 @@ static struct scsi_host_template scsi_driver_template = {
 	.cmd_per_lun		= 1,
 	.can_queue		= 1,
 	.sdev_attrs		= sbp2_scsi_sysfs_attrs,
+	.no_write_same		= 1,
 };
 
 MODULE_AUTHOR("Kristian Hoegsberg <krh@bitplanet.net>");
diff --git a/drivers/scsi/3w-9xxx.c b/drivers/scsi/3w-9xxx.c
index 5e1e12c0cf42..0a7325361d29 100644
--- a/drivers/scsi/3w-9xxx.c
+++ b/drivers/scsi/3w-9xxx.c
@@ -2025,7 +2025,8 @@ static struct scsi_host_template driver_template = {
 	.cmd_per_lun		= TW_MAX_CMDS_PER_LUN,
 	.use_clustering		= ENABLE_CLUSTERING,
 	.shost_attrs		= twa_host_attrs,
-	.emulated		= 1
+	.emulated		= 1,
+	.no_write_same		= 1,
 };
 
 /* This function will probe and initialize a card */
diff --git a/drivers/scsi/3w-sas.c b/drivers/scsi/3w-sas.c
index c845bdbeb6c0..4de346017e9f 100644
--- a/drivers/scsi/3w-sas.c
+++ b/drivers/scsi/3w-sas.c
@@ -1600,7 +1600,8 @@ static struct scsi_host_template driver_template = {
 	.cmd_per_lun		= TW_MAX_CMDS_PER_LUN,
 	.use_clustering		= ENABLE_CLUSTERING,
 	.shost_attrs		= twl_host_attrs,
-	.emulated		= 1
+	.emulated		= 1,
+	.no_write_same		= 1,
 };
 
 /* This function will probe and initialize a card */
diff --git a/drivers/scsi/3w-xxxx.c b/drivers/scsi/3w-xxxx.c
index b9276d10b25c..752624e6bc00 100644
--- a/drivers/scsi/3w-xxxx.c
+++ b/drivers/scsi/3w-xxxx.c
@@ -2279,7 +2279,8 @@ static struct scsi_host_template driver_template = {
 	.cmd_per_lun		= TW_MAX_CMDS_PER_LUN,	
 	.use_clustering		= ENABLE_CLUSTERING,
 	.shost_attrs		= tw_host_attrs,
-	.emulated		= 1
+	.emulated		= 1,
+	.no_write_same		= 1,
 };
 
 /* This function will probe and initialize a card */
diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c
index f0d432c139d0..4921ed19a027 100644
--- a/drivers/scsi/aacraid/linit.c
+++ b/drivers/scsi/aacraid/linit.c
@@ -1081,6 +1081,7 @@ static struct scsi_host_template aac_driver_template = {
 #endif
 	.use_clustering			= ENABLE_CLUSTERING,
 	.emulated			= 1,
+	.no_write_same			= 1,
 };
 
 static void __aac_shutdown(struct aac_dev * aac)
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index 97fd450aff09..4f6a30b8e5f9 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -137,6 +137,7 @@ static struct scsi_host_template arcmsr_scsi_host_template = {
 	.cmd_per_lun		= ARCMSR_MAX_CMD_PERLUN,
 	.use_clustering		= ENABLE_CLUSTERING,
 	.shost_attrs		= arcmsr_host_attrs,
+	.no_write_same		= 1,
 };
 static struct pci_device_id arcmsr_device_id_table[] = {
 	{PCI_DEVICE(PCI_VENDOR_ID_ARECA, PCI_DEVICE_ID_ARECA_1110)},
diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c
index ee4fa40a50b1..ce5ef0190bad 100644
--- a/drivers/scsi/gdth.c
+++ b/drivers/scsi/gdth.c
@@ -4684,6 +4684,7 @@ static struct scsi_host_template gdth_template = {
         .cmd_per_lun            = GDTH_MAXC_P_L,
         .unchecked_isa_dma      = 1,
         .use_clustering         = ENABLE_CLUSTERING,
+	.no_write_same		= 1,
 };
 
 #ifdef CONFIG_ISA
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index f334859024c0..f2c5005f312a 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -395,6 +395,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
 	shost->use_clustering = sht->use_clustering;
 	shost->ordered_tag = sht->ordered_tag;
 	shost->eh_deadline = shost_eh_deadline * HZ;
+	shost->no_write_same = sht->no_write_same;
 
 	if (sht->supported_mode == MODE_UNKNOWN)
 		/* means we didn't set it ... default to INITIATOR */
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 22f6432eb475..2336beff7a48 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -561,6 +561,7 @@ static struct scsi_host_template hpsa_driver_template = {
 	.sdev_attrs = hpsa_sdev_attrs,
 	.shost_attrs = hpsa_shost_attrs,
 	.max_sectors = 8192,
+	.no_write_same = 1,
 };
 
 
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c
index 36ac1c34ce97..573f4128b6b6 100644
--- a/drivers/scsi/ipr.c
+++ b/drivers/scsi/ipr.c
@@ -6305,7 +6305,8 @@ static struct scsi_host_template driver_template = {
 	.use_clustering = ENABLE_CLUSTERING,
 	.shost_attrs = ipr_ioa_attrs,
 	.sdev_attrs = ipr_dev_attrs,
-	.proc_name = IPR_NAME
+	.proc_name = IPR_NAME,
+	.no_write_same = 1,
 };
 
 /**
diff --git a/drivers/scsi/ips.c b/drivers/scsi/ips.c
index 8d5ea8a1e5a6..52a216f21ae5 100644
--- a/drivers/scsi/ips.c
+++ b/drivers/scsi/ips.c
@@ -374,6 +374,7 @@ static struct scsi_host_template ips_driver_template = {
 	.sg_tablesize		= IPS_MAX_SG,
 	.cmd_per_lun		= 3,
 	.use_clustering		= ENABLE_CLUSTERING,
+	.no_write_same		= 1,
 };
 
 
diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c
index 90c95a3385d1..816db12ef5d5 100644
--- a/drivers/scsi/megaraid.c
+++ b/drivers/scsi/megaraid.c
@@ -4244,6 +4244,7 @@ static struct scsi_host_template megaraid_template = {
 	.eh_device_reset_handler	= megaraid_reset,
 	.eh_bus_reset_handler		= megaraid_reset,
 	.eh_host_reset_handler		= megaraid_reset,
+	.no_write_same			= 1,
 };
 
 static int
diff --git a/drivers/scsi/megaraid/megaraid_mbox.c b/drivers/scsi/megaraid/megaraid_mbox.c
index d1a4b82836ea..e2237a97cb9d 100644
--- a/drivers/scsi/megaraid/megaraid_mbox.c
+++ b/drivers/scsi/megaraid/megaraid_mbox.c
@@ -367,6 +367,7 @@ static struct scsi_host_template megaraid_template_g = {
 	.eh_host_reset_handler		= megaraid_reset_handler,
 	.change_queue_depth		= megaraid_change_queue_depth,
 	.use_clustering			= ENABLE_CLUSTERING,
+	.no_write_same			= 1,
 	.sdev_attrs			= megaraid_sdev_attrs,
 	.shost_attrs			= megaraid_shost_attrs,
 };
diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c
index 0a743a5d1647..c99812bf2a73 100644
--- a/drivers/scsi/megaraid/megaraid_sas_base.c
+++ b/drivers/scsi/megaraid/megaraid_sas_base.c
@@ -2148,6 +2148,7 @@ static struct scsi_host_template megasas_template = {
 	.bios_param = megasas_bios_param,
 	.use_clustering = ENABLE_CLUSTERING,
 	.change_queue_depth = megasas_change_queue_depth,
+	.no_write_same = 1,
 };
 
 /**
diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c
index bd6f743d87a7..f413ef796b43 100644
--- a/drivers/scsi/pmcraid.c
+++ b/drivers/scsi/pmcraid.c
@@ -4315,6 +4315,7 @@ static struct scsi_host_template pmcraid_host_template = {
 	.this_id = -1,
 	.sg_tablesize = PMCRAID_MAX_IOADLS,
 	.max_sectors = PMCRAID_IOA_MAX_SECTORS,
+	.no_write_same = 1,
 	.cmd_per_lun = PMCRAID_MAX_CMD_PER_LUN,
 	.use_clustering = ENABLE_CLUSTERING,
 	.shost_attrs = pmcraid_host_attrs,
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index e6c4bff04339..69725f7c32c1 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -2659,6 +2659,12 @@ static void sd_read_write_same(struct scsi_disk *sdkp, unsigned char *buffer)
 {
 	struct scsi_device *sdev = sdkp->device;
 
+	if (sdev->host->no_write_same) {
+		sdev->no_write_same = 1;
+
+		return;
+	}
+
 	if (scsi_report_opcode(sdev, buffer, SD_BUF_SIZE, INQUIRY) < 0) {
 		/* too large values might cause issues with arcmsr */
 		int vpd_buf_len = 64;
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index 1a28f5632797..17d740427240 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -1697,6 +1697,7 @@ static struct scsi_host_template scsi_driver = {
 	.use_clustering =	DISABLE_CLUSTERING,
 	/* Make sure we dont get a sg segment crosses a page boundary */
 	.dma_boundary =		PAGE_SIZE-1,
+	.no_write_same =	1,
 };
 
 enum {
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 546084964d55..fe3b58e836c8 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -475,6 +475,9 @@ struct scsi_host_template {
 	 */
 	unsigned ordered_tag:1;
 
+	/* True if the controller does not support WRITE SAME */
+	unsigned no_write_same:1;
+
 	/*
 	 * Countdown for host blocking with no commands outstanding.
 	 */
@@ -677,6 +680,9 @@ struct Scsi_Host {
 	/* Don't resume host in EH */
 	unsigned eh_noresume:1;
 
+	/* The controller does not support WRITE SAME */
+	unsigned no_write_same:1;
+
 	/*
 	 * Optional work queue to be utilized by the transport
 	 */
-- 
cgit 


From d870b4a191a389c661cd40aacb06981c26b5e504 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@zeniv.linux.org.uk>
Date: Fri, 29 Nov 2013 01:48:32 -0500
Subject: fix bogus path_put() of nd->root after some unlazy_walk() failures

Failure to grab reference to parent dentry should go through the
same cleanup as nd->seq mismatch.  As it is, we might end up with
caller thinking it needs to path_put() nd->root, with obvious
nasty results once we'd hit that bug enough times to drive the
refcount of root dentry all the way to zero...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/namei.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/namei.c b/fs/namei.c
index 8f77a8cea289..c53d3a9547f9 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -513,8 +513,7 @@ static int unlazy_walk(struct nameidata *nd, struct dentry *dentry)
 
 	if (!lockref_get_not_dead(&parent->d_lockref)) {
 		nd->path.dentry = NULL;	
-		rcu_read_unlock();
-		return -ECHILD;
+		goto out;
 	}
 
 	/*
-- 
cgit 


From eb82594b75b0cf54c667189e061934b7c49b5d42 Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Fri, 29 Nov 2013 15:10:20 +0800
Subject: ALSA: hda - Add mono speaker quirk for Dell Inspiron 5439

This machine also has mono output if run through DAC node 0x03.

Cc: stable@vger.kernel.org (v3.10+)
BugLink: https://bugs.launchpad.net/bugs/1256212
Tested-by: David Chen <david.chen@canonical.com>
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index c770bdba6531..6366a6683e22 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4202,6 +4202,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1028, 0x0614, "Dell Inspiron 3135", ALC269_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x0616, "Dell Vostro 5470", ALC290_FIXUP_MONO_SPEAKERS),
 	SND_PCI_QUIRK(0x1028, 0x061f, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE),
+	SND_PCI_QUIRK(0x1028, 0x0638, "Dell Inspiron 5439", ALC290_FIXUP_MONO_SPEAKERS),
 	SND_PCI_QUIRK(0x1028, 0x063f, "Dell", ALC255_FIXUP_DELL1_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x15cc, "Dell X5 Precision", ALC269_FIXUP_DELL2_MIC_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1028, 0x15cd, "Dell X5 Precision", ALC269_FIXUP_DELL2_MIC_NO_PRESENCE),
-- 
cgit 


From 4d6ff250857a8b5f8e33ea62ff16f165085f8655 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Fri, 29 Nov 2013 11:14:09 +0300
Subject: ALSA: dice: fix array limits in dice_proc_read()

The array limits are supposed to be in units of u32 instead of in bytes.
The current code has a potential array overflow.

Fixes: c614475b0ea9 ('ALSA: dice: add a proc file to show device information')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/firewire/dice.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/firewire/dice.c b/sound/firewire/dice.c
index 57bcd31fcc12..c0aa64941cee 100644
--- a/sound/firewire/dice.c
+++ b/sound/firewire/dice.c
@@ -1019,7 +1019,7 @@ static void dice_proc_read(struct snd_info_entry *entry,
 
 	if (dice_proc_read_mem(dice, &tx_rx_header, sections[2], 2) < 0)
 		return;
-	quadlets = min_t(u32, tx_rx_header.size, sizeof(buf.tx));
+	quadlets = min_t(u32, tx_rx_header.size, sizeof(buf.tx) / 4);
 	for (stream = 0; stream < tx_rx_header.number; ++stream) {
 		if (dice_proc_read_mem(dice, &buf.tx, sections[2] + 2 +
 				       stream * tx_rx_header.size,
@@ -1045,7 +1045,7 @@ static void dice_proc_read(struct snd_info_entry *entry,
 
 	if (dice_proc_read_mem(dice, &tx_rx_header, sections[4], 2) < 0)
 		return;
-	quadlets = min_t(u32, tx_rx_header.size, sizeof(buf.rx));
+	quadlets = min_t(u32, tx_rx_header.size, sizeof(buf.rx) / 4);
 	for (stream = 0; stream < tx_rx_header.number; ++stream) {
 		if (dice_proc_read_mem(dice, &buf.rx, sections[4] + 2 +
 				       stream * tx_rx_header.size,
-- 
cgit 


From fdeadb43fdf1e7d5698c027b555c389174548e5a Mon Sep 17 00:00:00 2001
From: Madper Xie <cxie@redhat.com>
Date: Fri, 29 Nov 2013 15:58:57 +0800
Subject: efi-pstore: Make efi-pstore return a unique id

Pstore fs expects that backends provide a unique id which could avoid
pstore making entries as duplication or denominating entries the same
name. So I combine the timestamp, part and count into id.

Signed-off-by: Madper Xie <cxie@redhat.com>
Cc: Seiji Aguchi <seiji.aguchi@hds.com>
Cc: stable@vger.kernel.org
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
---
 drivers/firmware/efi/efi-pstore.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/drivers/firmware/efi/efi-pstore.c b/drivers/firmware/efi/efi-pstore.c
index 6ce31e93da55..743fd426f21b 100644
--- a/drivers/firmware/efi/efi-pstore.c
+++ b/drivers/firmware/efi/efi-pstore.c
@@ -37,6 +37,12 @@ struct pstore_read_data {
 	char **buf;
 };
 
+static inline u64 generic_id(unsigned long timestamp,
+			     unsigned int part, int count)
+{
+	return (timestamp * 100 + part) * 1000 + count;
+}
+
 static int efi_pstore_read_func(struct efivar_entry *entry, void *data)
 {
 	efi_guid_t vendor = LINUX_EFI_CRASH_GUID;
@@ -55,7 +61,7 @@ static int efi_pstore_read_func(struct efivar_entry *entry, void *data)
 
 	if (sscanf(name, "dump-type%u-%u-%d-%lu-%c",
 		   cb_data->type, &part, &cnt, &time, &data_type) == 5) {
-		*cb_data->id = part;
+		*cb_data->id = generic_id(time, part, cnt);
 		*cb_data->count = cnt;
 		cb_data->timespec->tv_sec = time;
 		cb_data->timespec->tv_nsec = 0;
@@ -65,7 +71,7 @@ static int efi_pstore_read_func(struct efivar_entry *entry, void *data)
 			*cb_data->compressed = false;
 	} else if (sscanf(name, "dump-type%u-%u-%d-%lu",
 		   cb_data->type, &part, &cnt, &time) == 4) {
-		*cb_data->id = part;
+		*cb_data->id = generic_id(time, part, cnt);
 		*cb_data->count = cnt;
 		cb_data->timespec->tv_sec = time;
 		cb_data->timespec->tv_nsec = 0;
@@ -77,7 +83,7 @@ static int efi_pstore_read_func(struct efivar_entry *entry, void *data)
 		 * which doesn't support holding
 		 * multiple logs, remains.
 		 */
-		*cb_data->id = part;
+		*cb_data->id = generic_id(time, part, 0);
 		*cb_data->count = 0;
 		cb_data->timespec->tv_sec = time;
 		cb_data->timespec->tv_nsec = 0;
@@ -320,14 +326,16 @@ static int efi_pstore_erase(enum pstore_type_id type, u64 id, int count,
 	char name[DUMP_NAME_LEN];
 	efi_char16_t efi_name[DUMP_NAME_LEN];
 	int found, i;
+	unsigned int part;
 
-	sprintf(name, "dump-type%u-%u-%d-%lu", type, (unsigned int)id, count,
-		time.tv_sec);
+	do_div(id, 1000);
+	part = do_div(id, 100);
+	sprintf(name, "dump-type%u-%u-%d-%lu", type, part, count, time.tv_sec);
 
 	for (i = 0; i < DUMP_NAME_LEN; i++)
 		efi_name[i] = name[i];
 
-	edata.id = id;
+	edata.id = part;
 	edata.type = type;
 	edata.count = count;
 	edata.time = time;
-- 
cgit 


From 0e576acbc1d9600cf2d9b4a141a2554639959d50 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Fri, 29 Nov 2013 12:18:13 +0100
Subject: nohz: Fix another inconsistency between CONFIG_NO_HZ=n and nohz=off

If CONFIG_NO_HZ=n tick_nohz_get_sleep_length() returns NSEC_PER_SEC/HZ.

If CONFIG_NO_HZ=y and the nohz functionality is disabled via the
command line option "nohz=off" or not enabled due to missing hardware
support, then tick_nohz_get_sleep_length() returns 0. That happens
because ts->sleep_length is never set in that case.

Set it to NSEC_PER_SEC/HZ when the NOHZ mode is inactive.

Reported-by: Michal Hocko <mhocko@suse.cz>
Reported-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
 kernel/time/tick-sched.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
index a12df5abde0b..ea20f7d1ac2c 100644
--- a/kernel/time/tick-sched.c
+++ b/kernel/time/tick-sched.c
@@ -711,8 +711,10 @@ static bool can_stop_idle_tick(int cpu, struct tick_sched *ts)
 		return false;
 	}
 
-	if (unlikely(ts->nohz_mode == NOHZ_MODE_INACTIVE))
+	if (unlikely(ts->nohz_mode == NOHZ_MODE_INACTIVE)) {
+		ts->sleep_length = (ktime_t) { .tv64 = NSEC_PER_SEC/HZ };
 		return false;
+	}
 
 	if (need_resched())
 		return false;
-- 
cgit 


From 4f00130b70e5eee813cc7bc298e0f3fdf79673cc Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Fri, 29 Nov 2013 10:56:14 +0000
Subject: arm64: Use Normal NonCacheable memory for writecombine

This provides better performance compared to Device GRE and also allows
unaligned accesses. Such memory is intended to be used with standard RAM
(e.g. framebuffers) and not I/O.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---
 arch/arm64/include/asm/pgtable.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 17bd3af0a117..5347b39fdb35 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -254,7 +254,7 @@ static inline int has_transparent_hugepage(void)
 #define pgprot_noncached(prot) \
 	__pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_DEVICE_nGnRnE))
 #define pgprot_writecombine(prot) \
-	__pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_DEVICE_GRE))
+	__pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_NORMAL_NC))
 #define pgprot_dmacoherent(prot) \
 	__pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_NORMAL_NC))
 #define __HAVE_PHYS_MEM_ACCESS_PROT
-- 
cgit 


From 8f1ec93ae94e95e717283575997dd134a4c5397f Mon Sep 17 00:00:00 2001
From: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Date: Fri, 29 Nov 2013 13:33:11 +0000
Subject: ASoC: core: Use consistent byte ordering in snd_soc_bytes_get

snd_soc_bytes_put treats the data in the binary control as big endian
words, however snd_soc_bytes_get uses the endian of the host machine.
This causes the two functions to be inconsistant with how the mask is
applied on little endian machines.

This patch applies the big_endian format used in snd_soc_bytes_put to
snd_soc_bytes_get.

Signed-off-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/soc-core.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 4e53d87e881d..a66783e13a9c 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -3212,11 +3212,11 @@ int snd_soc_bytes_get(struct snd_kcontrol *kcontrol,
 			break;
 		case 2:
 			((u16 *)(&ucontrol->value.bytes.data))[0]
-				&= ~params->mask;
+				&= cpu_to_be16(~params->mask);
 			break;
 		case 4:
 			((u32 *)(&ucontrol->value.bytes.data))[0]
-				&= ~params->mask;
+				&= cpu_to_be32(~params->mask);
 			break;
 		default:
 			return -EINVAL;
-- 
cgit 


From 6ddf0fd1c462a418a3cbb8b0653820dc48ffbd98 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Fri, 29 Nov 2013 12:47:34 +0100
Subject: ALSA: hda - Fix silent output on ASUS W7J laptop

The recent kernels got regressions on ASUS W7J with ALC660 codec where
no sound comes out.  After a long debugging session, we found out that
setting the pin control on the unused NID 0x10 is mandatory for the
outputs.  And, it was found out that another magic of NID 0x0f that is
required for other ASUS laptops isn't needed on this machine.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=66081
Reported-and-tested-by: Andrey Lipaev <lipaev@mail.ru>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 6366a6683e22..a98f3296b891 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4494,6 +4494,7 @@ enum {
 	ALC861_FIXUP_AMP_VREF_0F,
 	ALC861_FIXUP_NO_JACK_DETECT,
 	ALC861_FIXUP_ASUS_A6RP,
+	ALC660_FIXUP_ASUS_W7J,
 };
 
 /* On some laptops, VREF of pin 0x0f is abused for controlling the main amp */
@@ -4543,10 +4544,21 @@ static const struct hda_fixup alc861_fixups[] = {
 		.v.func = alc861_fixup_asus_amp_vref_0f,
 		.chained = true,
 		.chain_id = ALC861_FIXUP_NO_JACK_DETECT,
+	},
+	[ALC660_FIXUP_ASUS_W7J] = {
+		.type = HDA_FIXUP_VERBS,
+		.v.verbs = (const struct hda_verb[]) {
+			/* ASUS W7J needs a magic pin setup on unused NID 0x10
+			 * for enabling outputs
+			 */
+			{0x10, AC_VERB_SET_PIN_WIDGET_CONTROL, 0x24},
+			{ }
+		},
 	}
 };
 
 static const struct snd_pci_quirk alc861_fixup_tbl[] = {
+	SND_PCI_QUIRK(0x1043, 0x1253, "ASUS W7J", ALC660_FIXUP_ASUS_W7J),
 	SND_PCI_QUIRK(0x1043, 0x1393, "ASUS A6Rp", ALC861_FIXUP_ASUS_A6RP),
 	SND_PCI_QUIRK_VENDOR(0x1043, "ASUS laptop", ALC861_FIXUP_AMP_VREF_0F),
 	SND_PCI_QUIRK(0x1462, 0x7254, "HP DX2200", ALC861_FIXUP_NO_JACK_DETECT),
-- 
cgit 


From 3676f9ef5481d614f8c5c857f5319755be248268 Mon Sep 17 00:00:00 2001
From: Catalin Marinas <catalin.marinas@arm.com>
Date: Wed, 27 Nov 2013 16:59:27 +0000
Subject: arm64: Move PTE_PROT_NONE higher up

PTE_PROT_NONE means that a pte is present but does not have any
read/write attributes. However, setting the memory type like
pgprot_writecombine() is allowed and such bits overlap with
PTE_PROT_NONE. This causes mmap/munmap issues in drivers that change the
vma->vm_pg_prot on PROT_NONE mappings.

This patch reverts the PTE_FILE/PTE_PROT_NONE shift in commit
59911ca4325d (ARM64: mm: Move PTE_PROT_NONE bit) and moves PTE_PROT_NONE
together with the other software bits.

Signed-off-by: Steve Capper <steve.capper@linaro.org>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Steve Capper <steve.capper@linaro.org>
Cc: <stable@vger.kernel.org> # 3.11+
---
 arch/arm64/include/asm/pgtable.h | 31 +++++++++++++++++--------------
 1 file changed, 17 insertions(+), 14 deletions(-)

diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 5347b39fdb35..7f2b60affbb4 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -25,10 +25,11 @@
  * Software defined PTE bits definition.
  */
 #define PTE_VALID		(_AT(pteval_t, 1) << 0)
-#define PTE_PROT_NONE		(_AT(pteval_t, 1) << 2)	/* only when !PTE_VALID */
-#define PTE_FILE		(_AT(pteval_t, 1) << 3)	/* only when !pte_present() */
+#define PTE_FILE		(_AT(pteval_t, 1) << 2)	/* only when !pte_present() */
 #define PTE_DIRTY		(_AT(pteval_t, 1) << 55)
 #define PTE_SPECIAL		(_AT(pteval_t, 1) << 56)
+				/* bit 57 for PMD_SECT_SPLITTING */
+#define PTE_PROT_NONE		(_AT(pteval_t, 1) << 58) /* only when !PTE_VALID */
 
 /*
  * VMALLOC and SPARSEMEM_VMEMMAP ranges.
@@ -357,18 +358,20 @@ extern pgd_t idmap_pg_dir[PTRS_PER_PGD];
 
 /*
  * Encode and decode a swap entry:
- *	bits 0, 2:	present (must both be zero)
- *	bit  3:		PTE_FILE
- *	bits 4-8:	swap type
- *	bits 9-63:	swap offset
+ *	bits 0-1:	present (must be zero)
+ *	bit  2:		PTE_FILE
+ *	bits 3-8:	swap type
+ *	bits 9-57:	swap offset
  */
-#define __SWP_TYPE_SHIFT	4
+#define __SWP_TYPE_SHIFT	3
 #define __SWP_TYPE_BITS		6
+#define __SWP_OFFSET_BITS	49
 #define __SWP_TYPE_MASK		((1 << __SWP_TYPE_BITS) - 1)
 #define __SWP_OFFSET_SHIFT	(__SWP_TYPE_BITS + __SWP_TYPE_SHIFT)
+#define __SWP_OFFSET_MASK	((1UL << __SWP_OFFSET_BITS) - 1)
 
 #define __swp_type(x)		(((x).val >> __SWP_TYPE_SHIFT) & __SWP_TYPE_MASK)
-#define __swp_offset(x)		((x).val >> __SWP_OFFSET_SHIFT)
+#define __swp_offset(x)		(((x).val >> __SWP_OFFSET_SHIFT) & __SWP_OFFSET_MASK)
 #define __swp_entry(type,offset) ((swp_entry_t) { ((type) << __SWP_TYPE_SHIFT) | ((offset) << __SWP_OFFSET_SHIFT) })
 
 #define __pte_to_swp_entry(pte)	((swp_entry_t) { pte_val(pte) })
@@ -382,15 +385,15 @@ extern pgd_t idmap_pg_dir[PTRS_PER_PGD];
 
 /*
  * Encode and decode a file entry:
- *	bits 0, 2:	present (must both be zero)
- *	bit  3:		PTE_FILE
- *	bits 4-63:	file offset / PAGE_SIZE
+ *	bits 0-1:	present (must be zero)
+ *	bit  2:		PTE_FILE
+ *	bits 3-57:	file offset / PAGE_SIZE
  */
 #define pte_file(pte)		(pte_val(pte) & PTE_FILE)
-#define pte_to_pgoff(x)		(pte_val(x) >> 4)
-#define pgoff_to_pte(x)		__pte(((x) << 4) | PTE_FILE)
+#define pte_to_pgoff(x)		(pte_val(x) >> 3)
+#define pgoff_to_pte(x)		__pte(((x) << 3) | PTE_FILE)
 
-#define PTE_FILE_MAX_BITS	60
+#define PTE_FILE_MAX_BITS	55
 
 extern int kern_addr_valid(unsigned long addr);
 
-- 
cgit 


From dc1ccc48159d63eca5089e507c82c7d22ef60839 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri, 29 Nov 2013 12:57:14 -0800
Subject: Linux 3.13-rc2

---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index c0c2d58e3998..2c88e44a1dd4 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 3
 PATCHLEVEL = 13
 SUBLEVEL = 0
-EXTRAVERSION = -rc1
+EXTRAVERSION = -rc2
 NAME = One Giant Leap for Frogkind
 
 # *DOCUMENTATION*
-- 
cgit 


From 006da7b07bc4d3a7ffabad17cf639eec6849c9dc Mon Sep 17 00:00:00 2001
From: Vlad Yasevich <vyasevic@redhat.com>
Date: Tue, 26 Nov 2013 12:37:12 -0500
Subject: macvtap: Do not double-count received packets

Currently macvlan will count received packets after calling each
vlans receive handler.   Macvtap attempts to count the packet
yet again when the user reads the packet from the tap socket.
This code doesn't do this consistently either.  Remove the
counting from macvtap and let only macvlan count received
packets.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/macvtap.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/drivers/net/macvtap.c b/drivers/net/macvtap.c
index 0605da8e25f5..9093004f9b63 100644
--- a/drivers/net/macvtap.c
+++ b/drivers/net/macvtap.c
@@ -767,7 +767,6 @@ static ssize_t macvtap_put_user(struct macvtap_queue *q,
 				const struct sk_buff *skb,
 				const struct iovec *iv, int len)
 {
-	struct macvlan_dev *vlan;
 	int ret;
 	int vnet_hdr_len = 0;
 	int vlan_offset = 0;
@@ -821,15 +820,6 @@ static ssize_t macvtap_put_user(struct macvtap_queue *q,
 	copied += len;
 
 done:
-	rcu_read_lock();
-	vlan = rcu_dereference(q->vlan);
-	if (vlan) {
-		preempt_disable();
-		macvlan_count_rx(vlan, copied - vnet_hdr_len, ret == 0, 0);
-		preempt_enable();
-	}
-	rcu_read_unlock();
-
 	return ret ? ret : copied;
 }
 
-- 
cgit 


From ec6f809ff6f19fafba3212f6aff0dda71dfac8e8 Mon Sep 17 00:00:00 2001
From: Veaceslav Falico <vfalico@redhat.com>
Date: Fri, 29 Nov 2013 09:53:23 +0100
Subject: af_packet: block BH in prb_shutdown_retire_blk_timer()

Currently we're using plain spin_lock() in prb_shutdown_retire_blk_timer(),
however the timer might fire right in the middle and thus try to re-aquire
the same spinlock, leaving us in a endless loop.

To fix that, use the spin_lock_bh() to block it.

Fixes: f6fb8f100b80 ("af-packet: TPACKET_V3 flexible buffer implementation.")
CC: "David S. Miller" <davem@davemloft.net>
CC: Daniel Borkmann <dborkman@redhat.com>
CC: Willem de Bruijn <willemb@google.com>
CC: Phil Sutter <phil@nwl.cc>
CC: Eric Dumazet <edumazet@google.com>
Reported-by: Jan Stancek <jstancek@redhat.com>
Tested-by: Jan Stancek <jstancek@redhat.com>
Signed-off-by: Veaceslav Falico <vfalico@redhat.com>
Acked-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/packet/af_packet.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index ac27c86ef6d1..ba2548bd85bf 100644
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -439,9 +439,9 @@ static void prb_shutdown_retire_blk_timer(struct packet_sock *po,
 
 	pkc = tx_ring ? &po->tx_ring.prb_bdqc : &po->rx_ring.prb_bdqc;
 
-	spin_lock(&rb_queue->lock);
+	spin_lock_bh(&rb_queue->lock);
 	pkc->delete_blk_timer = 1;
-	spin_unlock(&rb_queue->lock);
+	spin_unlock_bh(&rb_queue->lock);
 
 	prb_del_retire_blk_timer(pkc);
 }
-- 
cgit 


From db31c55a6fb245fdbb752a2ca4aefec89afabb06 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 27 Nov 2013 15:40:21 +0300
Subject: net: clamp ->msg_namelen instead of returning an error

If kmsg->msg_namelen > sizeof(struct sockaddr_storage) then in the
original code that would lead to memory corruption in the kernel if you
had audit configured.  If you didn't have audit configured it was
harmless.

There are some programs such as beta versions of Ruby which use too
large of a buffer and returning an error code breaks them.  We should
clamp the ->msg_namelen value instead.

Fixes: 1661bf364ae9 ("net: heap overflow in __audit_sockaddr()")
Reported-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Tested-by: Eric Wong <normalperson@yhbt.net>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/compat.c | 2 +-
 net/socket.c | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/compat.c b/net/compat.c
index 618c6a8a911b..dd32e34c1e2c 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -72,7 +72,7 @@ int get_compat_msghdr(struct msghdr *kmsg, struct compat_msghdr __user *umsg)
 	    __get_user(kmsg->msg_flags, &umsg->msg_flags))
 		return -EFAULT;
 	if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))
-		return -EINVAL;
+		kmsg->msg_namelen = sizeof(struct sockaddr_storage);
 	kmsg->msg_name = compat_ptr(tmp1);
 	kmsg->msg_iov = compat_ptr(tmp2);
 	kmsg->msg_control = compat_ptr(tmp3);
diff --git a/net/socket.c b/net/socket.c
index 0b18693f2be6..e83c416708af 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1973,7 +1973,7 @@ static int copy_msghdr_from_user(struct msghdr *kmsg,
 	if (copy_from_user(kmsg, umsg, sizeof(struct msghdr)))
 		return -EFAULT;
 	if (kmsg->msg_namelen > sizeof(struct sockaddr_storage))
-		return -EINVAL;
+		kmsg->msg_namelen = sizeof(struct sockaddr_storage);
 	return 0;
 }
 
-- 
cgit 


From 1bac1072425c86f1ac85bd5967910706677ef8b3 Mon Sep 17 00:00:00 2001
From: David Chang <dchang@suse.com>
Date: Wed, 27 Nov 2013 15:48:36 +0800
Subject: r8169: check ALDPS bit and disable it if enabled for the 8168g

Windows driver will enable ALDPS function, but linux driver and firmware
do not have any configuration related to ALDPS function for 8168g.
So restart system to linux and remove the NIC cable, LAN enter ALDPS,
then LAN RX will be disabled.

This issue can be easily reproduced on dual boot windows and linux
system with RTL_GIGA_MAC_VER_40 chip.

Realtek said, ALDPS function can be disabled by configuring to PHY,
switch to page 0x0A43, reg0x10 bit2=0.

Signed-off-by: David Chang <dchang@suse.com>
Acked-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/realtek/r8169.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c
index 799387570766..c737f0ea5de7 100644
--- a/drivers/net/ethernet/realtek/r8169.c
+++ b/drivers/net/ethernet/realtek/r8169.c
@@ -3465,6 +3465,11 @@ static void rtl8168g_1_hw_phy_config(struct rtl8169_private *tp)
 	rtl_writephy(tp, 0x14, 0x9065);
 	rtl_writephy(tp, 0x14, 0x1065);
 
+	/* Check ALDPS bit, disable it if enabled */
+	rtl_writephy(tp, 0x1f, 0x0a43);
+	if (rtl_readphy(tp, 0x10) & 0x0004)
+		rtl_w1w0_phy(tp, 0x10, 0x0000, 0x0004);
+
 	rtl_writephy(tp, 0x1f, 0x0000);
 }
 
-- 
cgit 


From 7fe0ee099ad5e3dea88d4ee1b6f20246b1ca57c3 Mon Sep 17 00:00:00 2001
From: Yang Yingliang <yangyingliang@huawei.com>
Date: Wed, 27 Nov 2013 14:32:52 +0800
Subject: net: 8139cp: fix a BUG_ON triggered by wrong bytes_compl

Using iperf to send packets(GSO mode is on), a bug is triggered:

[  212.672781] kernel BUG at lib/dynamic_queue_limits.c:26!
[  212.673396] invalid opcode: 0000 [#1] SMP
[  212.673882] Modules linked in: 8139cp(O) nls_utf8 edd fuse loop dm_mod ipv6 i2c_piix4 8139too i2c_core intel_agp joydev pcspkr hid_generic intel_gtt floppy sr_mod mii button sg cdrom ext3 jbd mbcache usbhid hid uhci_hcd ehci_hcd usbcore sd_mod usb_common crc_t10dif crct10dif_common processor thermal_sys hwmon scsi_dh_emc scsi_dh_rdac scsi_dh_hp_sw scsi_dh ata_generic ata_piix libata scsi_mod [last unloaded: 8139cp]
[  212.676084] CPU: 0 PID: 4124 Comm: iperf Tainted: G           O 3.12.0-0.7-default+ #16
[  212.676084] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2007
[  212.676084] task: ffff8800d83966c0 ti: ffff8800db4c8000 task.ti: ffff8800db4c8000
[  212.676084] RIP: 0010:[<ffffffff8122e23f>]  [<ffffffff8122e23f>] dql_completed+0x17f/0x190
[  212.676084] RSP: 0018:ffff880116e03e30  EFLAGS: 00010083
[  212.676084] RAX: 00000000000005ea RBX: 0000000000000f7c RCX: 0000000000000002
[  212.676084] RDX: ffff880111dd0dc0 RSI: 0000000000000bd4 RDI: ffff8800db6ffcc0
[  212.676084] RBP: ffff880116e03e48 R08: 0000000000000992 R09: 0000000000000000
[  212.676084] R10: ffffffff8181e400 R11: 0000000000000004 R12: 000000000000000f
[  212.676084] R13: ffff8800d94ec840 R14: ffff8800db440c80 R15: 000000000000000e
[  212.676084] FS:  00007f6685a3c700(0000) GS:ffff880116e00000(0000) knlGS:0000000000000000
[  212.676084] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  212.676084] CR2: 00007f6685ad6460 CR3: 00000000db714000 CR4: 00000000000006f0
[  212.676084] Stack:
[  212.676084]  ffff8800db6ffc00 000000000000000f ffff8800d94ec840 ffff880116e03eb8
[  212.676084]  ffffffffa041509f ffff880116e03e88 0000000f16e03e88 ffff8800d94ec000
[  212.676084]  00000bd400059858 000000050000000f ffffffff81094c36 ffff880116e03eb8
[  212.676084] Call Trace:
[  212.676084]  <IRQ>
[  212.676084]  [<ffffffffa041509f>] cp_interrupt+0x4ef/0x590 [8139cp]
[  212.676084]  [<ffffffff81094c36>] ? ktime_get+0x56/0xd0
[  212.676084]  [<ffffffff8108cf73>] handle_irq_event_percpu+0x53/0x170
[  212.676084]  [<ffffffff8108d0cc>] handle_irq_event+0x3c/0x60
[  212.676084]  [<ffffffff8108fdb5>] handle_fasteoi_irq+0x55/0xf0
[  212.676084]  [<ffffffff810045df>] handle_irq+0x1f/0x30
[  212.676084]  [<ffffffff81003c8b>] do_IRQ+0x5b/0xe0
[  212.676084]  [<ffffffff8142beaa>] common_interrupt+0x6a/0x6a
[  212.676084]  <EOI>
[  212.676084]  [<ffffffffa0416a21>] ? cp_start_xmit+0x621/0x97c [8139cp]
[  212.676084]  [<ffffffffa0416a09>] ? cp_start_xmit+0x609/0x97c [8139cp]
[  212.676084]  [<ffffffff81378ed9>] dev_hard_start_xmit+0x2c9/0x550
[  212.676084]  [<ffffffff813960a9>] sch_direct_xmit+0x179/0x1d0
[  212.676084]  [<ffffffff813793f3>] dev_queue_xmit+0x293/0x440
[  212.676084]  [<ffffffff813b0e46>] ip_finish_output+0x236/0x450
[  212.676084]  [<ffffffff810e59e7>] ? __alloc_pages_nodemask+0x187/0xb10
[  212.676084]  [<ffffffff813b10e8>] ip_output+0x88/0x90
[  212.676084]  [<ffffffff813afa64>] ip_local_out+0x24/0x30
[  212.676084]  [<ffffffff813aff0d>] ip_queue_xmit+0x14d/0x3e0
[  212.676084]  [<ffffffff813c6fd1>] tcp_transmit_skb+0x501/0x840
[  212.676084]  [<ffffffff813c8323>] tcp_write_xmit+0x1e3/0xb20
[  212.676084]  [<ffffffff81363237>] ? skb_page_frag_refill+0x87/0xd0
[  212.676084]  [<ffffffff813c8c8b>] tcp_push_one+0x2b/0x40
[  212.676084]  [<ffffffff813bb7e6>] tcp_sendmsg+0x926/0xc90
[  212.676084]  [<ffffffff813e1d21>] inet_sendmsg+0x61/0xc0
[  212.676084]  [<ffffffff8135e861>] sock_aio_write+0x101/0x120
[  212.676084]  [<ffffffff81107cf1>] ? vma_adjust+0x2e1/0x5d0
[  212.676084]  [<ffffffff812163e0>] ? timerqueue_add+0x60/0xb0
[  212.676084]  [<ffffffff81130b60>] do_sync_write+0x60/0x90
[  212.676084]  [<ffffffff81130d44>] ? rw_verify_area+0x54/0xf0
[  212.676084]  [<ffffffff81130f66>] vfs_write+0x186/0x190
[  212.676084]  [<ffffffff811317fd>] SyS_write+0x5d/0xa0
[  212.676084]  [<ffffffff814321e2>] system_call_fastpath+0x16/0x1b
[  212.676084] Code: ca 41 89 dc 41 29 cc 45 31 db 29 c2 41 89 c5 89 d0 45 29 c5 f7 d0 c1 e8 1f e9 43 ff ff ff 66 0f 1f 44 00 00 31 c0 e9 7b ff ff ff <0f> 0b eb fe 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 c7 47 40 00
[  212.676084] RIP  [<ffffffff8122e23f>] dql_completed+0x17f/0x190
------------[ cut here ]------------

When a skb has frags, bytes_compl plus skb->len nr_frags times in cp_tx().
It's not the correct value(actually, it should plus skb->len once) and it
will trigger the BUG_ON(bytes_compl > num_queued - dql->num_completed).
So only increase bytes_compl when finish sending all frags. pkts_compl also
has a wrong value, fix it too.

It's introduced by commit 871f0d4c ("8139cp: enable bql").

Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/realtek/8139cp.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/realtek/8139cp.c b/drivers/net/ethernet/realtek/8139cp.c
index f2a2128165dd..737c1a881f78 100644
--- a/drivers/net/ethernet/realtek/8139cp.c
+++ b/drivers/net/ethernet/realtek/8139cp.c
@@ -678,9 +678,6 @@ static void cp_tx (struct cp_private *cp)
 				 le32_to_cpu(txd->opts1) & 0xffff,
 				 PCI_DMA_TODEVICE);
 
-		bytes_compl += skb->len;
-		pkts_compl++;
-
 		if (status & LastFrag) {
 			if (status & (TxError | TxFIFOUnder)) {
 				netif_dbg(cp, tx_err, cp->dev,
@@ -702,6 +699,8 @@ static void cp_tx (struct cp_private *cp)
 				netif_dbg(cp, tx_done, cp->dev,
 					  "tx done, slot %d\n", tx_tail);
 			}
+			bytes_compl += skb->len;
+			pkts_compl++;
 			dev_kfree_skb_irq(skb);
 		}
 
-- 
cgit 


From b268daffdcb9762ad9aa3898096570a9dd92aa9b Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Wed, 27 Nov 2013 13:33:21 +0100
Subject: net: smc91: fix crash regression on the versatile

After commit e9e4ea74f06635f2ffc1dffe5ef40c854faa0a90
"net: smc91x: dont't use SMC_outw for fixing up halfword-aligned data"
The Versatile SMSC LAN91C111 is crashing like this:

------------[ cut here ]------------
kernel BUG at /home/linus/linux/drivers/net/ethernet/smsc/smc91x.c:599!
Internal error: Oops - BUG: 0 [#1] ARM
Modules linked in:
CPU: 0 PID: 43 Comm: udhcpc Not tainted 3.13.0-rc1+ #24
task: c6ccfaa0 ti: c6cd0000 task.ti: c6cd0000
PC is at smc_hardware_send_pkt+0x198/0x22c
LR is at smc_hardware_send_pkt+0x24/0x22c
pc : [<c01be324>]    lr : [<c01be1b0>]    psr: 20000013
sp : c6cd1d08  ip : 00000001  fp : 00000000
r10: c02adb08  r9 : 00000000  r8 : c6ced802
r7 : c786fba0  r6 : 00000146  r5 : c8800000  r4 : c78d6000
r3 : 0000000f  r2 : 00000146  r1 : 00000000  r0 : 00000031
Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 0005317f  Table: 06cf4000  DAC: 00000015
Process udhcpc (pid: 43, stack limit = 0xc6cd01c0)
Stack: (0xc6cd1d08 to 0xc6cd2000)
1d00:                   00000010 c8800000 c78d6000 c786fba0 c78d6000 c01be868
1d20: c01be7a4 00004000 00000000 c786fba0 c6c12b80 c0208554 000004d0 c780fc60
1d40: 00000220 c01fb734 00000000 00000000 00000000 c6c9a440 c6c12b80 c78d6000
1d60: c786fba0 c6c9a440 00000000 c021d1d8 00000000 00000000 c6c12b80 c78d6000
1d80: c786fba0 00000001 c6c9a440 c02087f8 c6c9a4a0 00080008 00000000 00000000
1da0: c78d6000 c786fba0 c78d6000 00000138 00000000 00000000 00000000 00000000
1dc0: 00000000 c027ba74 00000138 00000138 00000001 00000010 c6cedc00 00000000
1de0: 00000008 c7404400 c6cd1eec c6cd1f14 c067a73c c065c0b8 00000000 c067a740
1e00: 01ffffff 002040d0 00000000 00000000 00000000 00000000 00000000 ffffffff
1e20: 43004400 00110022 c6cdef20 c027ae8c c6ccfaa0 be82d65c 00000014 be82d3cc
1e40: 00000000 00000000 00000000 c01f2870 00000000 00000000 00000000 c6cd1e88
1e60: c6ccfaa0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1e80: 00000000 00000000 00000031 c7802310 c7802300 00000138 c7404400 c0771da0
1ea0: 00000000 c6cd1eec c7800340 00000138 be82d65c 00000014 be82d3cc c6cd1f08
1ec0: 00000014 00000000 c7404400 c7404400 00000138 c01f4628 c78d6000 00000000
1ee0: 00000000 be82d3cc 00000138 c6cd1f08 00000014 c6cd1ee4 00000001 00000000
1f00: 00000000 00000000 00080011 00000002 06000000 ffffffff 0000ffff 00000002
1f20: 06000000 ffffffff 0000ffff c00928c8 c065c520 c6cd1f58 00000003 c009299c
1f40: 00000003 c065c520 c7404400 00000000 c7404400 c01f2218 c78106b0 c7441cb0
1f60: 00000000 00000006 c06799fc 00000000 00000000 00000006 00000000 c01f3ee0
1f80: 00000000 00000000 be82d678 be82d65c 00000014 00000001 00000122 c00139c8
1fa0: c6cd0000 c0013840 be82d65c 00000014 00000006 be82d3cc 00000138 00000000
1fc0: be82d65c 00000014 00000001 00000122 00000000 00000000 00018cb1 00000000
1fe0: 00003801 be82d3a8 0003a0c7 b6e9af08 60000010 00000006 00000000 00000000
[<c01be324>] (smc_hardware_send_pkt+0x198/0x22c) from [<c01be868>] (smc_hard_start_xmit+0xc4/0x1e8)
[<c01be868>] (smc_hard_start_xmit+0xc4/0x1e8) from [<c0208554>] (dev_hard_start_xmit+0x460/0x4cc)
[<c0208554>] (dev_hard_start_xmit+0x460/0x4cc) from [<c021d1d8>] (sch_direct_xmit+0x94/0x18c)
[<c021d1d8>] (sch_direct_xmit+0x94/0x18c) from [<c02087f8>] (dev_queue_xmit+0x238/0x42c)
[<c02087f8>] (dev_queue_xmit+0x238/0x42c) from [<c027ba74>] (packet_sendmsg+0xbe8/0xd28)
[<c027ba74>] (packet_sendmsg+0xbe8/0xd28) from [<c01f2870>] (sock_sendmsg+0x84/0xa8)
[<c01f2870>] (sock_sendmsg+0x84/0xa8) from [<c01f4628>] (SyS_sendto+0xb8/0xdc)
[<c01f4628>] (SyS_sendto+0xb8/0xdc) from [<c0013840>] (ret_fast_syscall+0x0/0x2c)
Code: e3130002 1a000001 e3130001 0affffcd (e7f001f2)
---[ end trace 81104fe70e8da7fe ]---
Kernel panic - not syncing: Fatal exception in interrupt

This is because the macro operations in smc91x.h defined
for Versatile are missing SMC_outsw() as used in this
commit.

The Versatile needs and uses the same accessors as the other
platforms in the first if(...) clause, just switch it to using
that and we have one problem less to worry about.

Checkpatch complains about spacing, but I have opted to
follow the style of this .h-file.

Cc: Russell King <linux@arm.linux.org.uk>
Cc: Nicolas Pitre <nico@fluxnic.net>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Cc: Will Deacon <will.deacon@arm.com>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/smsc/smc91x.h | 20 ++------------------
 1 file changed, 2 insertions(+), 18 deletions(-)

diff --git a/drivers/net/ethernet/smsc/smc91x.h b/drivers/net/ethernet/smsc/smc91x.h
index c9d4c872e81d..902a7c268d82 100644
--- a/drivers/net/ethernet/smsc/smc91x.h
+++ b/drivers/net/ethernet/smsc/smc91x.h
@@ -46,7 +46,8 @@
     defined(CONFIG_MACH_LITTLETON) ||\
     defined(CONFIG_MACH_ZYLONITE2) ||\
     defined(CONFIG_ARCH_VIPER) ||\
-    defined(CONFIG_MACH_STARGATE2)
+    defined(CONFIG_MACH_STARGATE2) ||\
+    defined(CONFIG_ARCH_VERSATILE)
 
 #include <asm/mach-types.h>
 
@@ -206,23 +207,6 @@ SMC_outw(u16 val, void __iomem *ioaddr, int reg)
 #define RPC_LSA_DEFAULT		RPC_LED_TX_RX
 #define RPC_LSB_DEFAULT		RPC_LED_100_10
 
-#elif	defined(CONFIG_ARCH_VERSATILE)
-
-#define SMC_CAN_USE_8BIT	1
-#define SMC_CAN_USE_16BIT	1
-#define SMC_CAN_USE_32BIT	1
-#define SMC_NOWAIT		1
-
-#define SMC_inb(a, r)		readb((a) + (r))
-#define SMC_inw(a, r)		readw((a) + (r))
-#define SMC_inl(a, r)		readl((a) + (r))
-#define SMC_outb(v, a, r)	writeb(v, (a) + (r))
-#define SMC_outw(v, a, r)	writew(v, (a) + (r))
-#define SMC_outl(v, a, r)	writel(v, (a) + (r))
-#define SMC_insl(a, r, p, l)	readsl((a) + (r), p, l)
-#define SMC_outsl(a, r, p, l)	writesl((a) + (r), p, l)
-#define SMC_IRQ_FLAGS		(-1)	/* from resource */
-
 #elif defined(CONFIG_MN10300)
 
 /*
-- 
cgit 


From 9d38d28bd211451533d7a0d1de57485aaf86d00a Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Fri, 29 Nov 2013 16:23:14 -0500
Subject: Revert "net: smc91: fix crash regression on the versatile"

This reverts commit b268daffdcb9762ad9aa3898096570a9dd92aa9b.

I applied the wrong version of this patch, the proper version
is coming up next.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/smsc/smc91x.h | 20 ++++++++++++++++++--
 1 file changed, 18 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/smsc/smc91x.h b/drivers/net/ethernet/smsc/smc91x.h
index 902a7c268d82..c9d4c872e81d 100644
--- a/drivers/net/ethernet/smsc/smc91x.h
+++ b/drivers/net/ethernet/smsc/smc91x.h
@@ -46,8 +46,7 @@
     defined(CONFIG_MACH_LITTLETON) ||\
     defined(CONFIG_MACH_ZYLONITE2) ||\
     defined(CONFIG_ARCH_VIPER) ||\
-    defined(CONFIG_MACH_STARGATE2) ||\
-    defined(CONFIG_ARCH_VERSATILE)
+    defined(CONFIG_MACH_STARGATE2)
 
 #include <asm/mach-types.h>
 
@@ -207,6 +206,23 @@ SMC_outw(u16 val, void __iomem *ioaddr, int reg)
 #define RPC_LSA_DEFAULT		RPC_LED_TX_RX
 #define RPC_LSB_DEFAULT		RPC_LED_100_10
 
+#elif	defined(CONFIG_ARCH_VERSATILE)
+
+#define SMC_CAN_USE_8BIT	1
+#define SMC_CAN_USE_16BIT	1
+#define SMC_CAN_USE_32BIT	1
+#define SMC_NOWAIT		1
+
+#define SMC_inb(a, r)		readb((a) + (r))
+#define SMC_inw(a, r)		readw((a) + (r))
+#define SMC_inl(a, r)		readl((a) + (r))
+#define SMC_outb(v, a, r)	writeb(v, (a) + (r))
+#define SMC_outw(v, a, r)	writew(v, (a) + (r))
+#define SMC_outl(v, a, r)	writel(v, (a) + (r))
+#define SMC_insl(a, r, p, l)	readsl((a) + (r), p, l)
+#define SMC_outsl(a, r, p, l)	writesl((a) + (r), p, l)
+#define SMC_IRQ_FLAGS		(-1)	/* from resource */
+
 #elif defined(CONFIG_MN10300)
 
 /*
-- 
cgit 


From a0c20fb02592d372e744d1d739cda3e1b3defaae Mon Sep 17 00:00:00 2001
From: Linus Walleij <linus.walleij@linaro.org>
Date: Thu, 28 Nov 2013 14:33:52 +0100
Subject: net: smc91: fix crash regression on the versatile

After commit e9e4ea74f06635f2ffc1dffe5ef40c854faa0a90
"net: smc91x: dont't use SMC_outw for fixing up halfword-aligned data"
The Versatile SMSC LAN91C111 is crashing like this:

------------[ cut here ]------------
kernel BUG at /home/linus/linux/drivers/net/ethernet/smsc/smc91x.c:599!
Internal error: Oops - BUG: 0 [#1] ARM
Modules linked in:
CPU: 0 PID: 43 Comm: udhcpc Not tainted 3.13.0-rc1+ #24
task: c6ccfaa0 ti: c6cd0000 task.ti: c6cd0000
PC is at smc_hardware_send_pkt+0x198/0x22c
LR is at smc_hardware_send_pkt+0x24/0x22c
pc : [<c01be324>]    lr : [<c01be1b0>]    psr: 20000013
sp : c6cd1d08  ip : 00000001  fp : 00000000
r10: c02adb08  r9 : 00000000  r8 : c6ced802
r7 : c786fba0  r6 : 00000146  r5 : c8800000  r4 : c78d6000
r3 : 0000000f  r2 : 00000146  r1 : 00000000  r0 : 00000031
Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 0005317f  Table: 06cf4000  DAC: 00000015
Process udhcpc (pid: 43, stack limit = 0xc6cd01c0)
Stack: (0xc6cd1d08 to 0xc6cd2000)
1d00:                   00000010 c8800000 c78d6000 c786fba0 c78d6000 c01be868
1d20: c01be7a4 00004000 00000000 c786fba0 c6c12b80 c0208554 000004d0 c780fc60
1d40: 00000220 c01fb734 00000000 00000000 00000000 c6c9a440 c6c12b80 c78d6000
1d60: c786fba0 c6c9a440 00000000 c021d1d8 00000000 00000000 c6c12b80 c78d6000
1d80: c786fba0 00000001 c6c9a440 c02087f8 c6c9a4a0 00080008 00000000 00000000
1da0: c78d6000 c786fba0 c78d6000 00000138 00000000 00000000 00000000 00000000
1dc0: 00000000 c027ba74 00000138 00000138 00000001 00000010 c6cedc00 00000000
1de0: 00000008 c7404400 c6cd1eec c6cd1f14 c067a73c c065c0b8 00000000 c067a740
1e00: 01ffffff 002040d0 00000000 00000000 00000000 00000000 00000000 ffffffff
1e20: 43004400 00110022 c6cdef20 c027ae8c c6ccfaa0 be82d65c 00000014 be82d3cc
1e40: 00000000 00000000 00000000 c01f2870 00000000 00000000 00000000 c6cd1e88
1e60: c6ccfaa0 00000000 00000000 00000000 00000000 00000000 00000000 00000000
1e80: 00000000 00000000 00000031 c7802310 c7802300 00000138 c7404400 c0771da0
1ea0: 00000000 c6cd1eec c7800340 00000138 be82d65c 00000014 be82d3cc c6cd1f08
1ec0: 00000014 00000000 c7404400 c7404400 00000138 c01f4628 c78d6000 00000000
1ee0: 00000000 be82d3cc 00000138 c6cd1f08 00000014 c6cd1ee4 00000001 00000000
1f00: 00000000 00000000 00080011 00000002 06000000 ffffffff 0000ffff 00000002
1f20: 06000000 ffffffff 0000ffff c00928c8 c065c520 c6cd1f58 00000003 c009299c
1f40: 00000003 c065c520 c7404400 00000000 c7404400 c01f2218 c78106b0 c7441cb0
1f60: 00000000 00000006 c06799fc 00000000 00000000 00000006 00000000 c01f3ee0
1f80: 00000000 00000000 be82d678 be82d65c 00000014 00000001 00000122 c00139c8
1fa0: c6cd0000 c0013840 be82d65c 00000014 00000006 be82d3cc 00000138 00000000
1fc0: be82d65c 00000014 00000001 00000122 00000000 00000000 00018cb1 00000000
1fe0: 00003801 be82d3a8 0003a0c7 b6e9af08 60000010 00000006 00000000 00000000
[<c01be324>] (smc_hardware_send_pkt+0x198/0x22c) from [<c01be868>] (smc_hard_start_xmit+0xc4/0x1e8)
[<c01be868>] (smc_hard_start_xmit+0xc4/0x1e8) from [<c0208554>] (dev_hard_start_xmit+0x460/0x4cc)
[<c0208554>] (dev_hard_start_xmit+0x460/0x4cc) from [<c021d1d8>] (sch_direct_xmit+0x94/0x18c)
[<c021d1d8>] (sch_direct_xmit+0x94/0x18c) from [<c02087f8>] (dev_queue_xmit+0x238/0x42c)
[<c02087f8>] (dev_queue_xmit+0x238/0x42c) from [<c027ba74>] (packet_sendmsg+0xbe8/0xd28)
[<c027ba74>] (packet_sendmsg+0xbe8/0xd28) from [<c01f2870>] (sock_sendmsg+0x84/0xa8)
[<c01f2870>] (sock_sendmsg+0x84/0xa8) from [<c01f4628>] (SyS_sendto+0xb8/0xdc)
[<c01f4628>] (SyS_sendto+0xb8/0xdc) from [<c0013840>] (ret_fast_syscall+0x0/0x2c)
Code: e3130002 1a000001 e3130001 0affffcd (e7f001f2)
---[ end trace 81104fe70e8da7fe ]---
Kernel panic - not syncing: Fatal exception in interrupt

This is because the macro operations in smc91x.h defined
for Versatile are missing SMC_outsw() as used in this
commit.

The Versatile needs and uses the same accessors as the other
platforms in the first if(...) clause, just switch it to using
that and we have one problem less to worry about.

This includes a hunk of a patch from Will Deacon fixin
the other 32bit platforms as well: Innokom, Ramses, PXA,
PCM027.

Checkpatch complains about spacing, but I have opted to
follow the style of this .h-file.

Cc: Russell King <linux@arm.linux.org.uk>
Cc: Nicolas Pitre <nico@fluxnic.net>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Cc: stable@vger.kernel.org
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/smsc/smc91x.h | 22 ++++------------------
 1 file changed, 4 insertions(+), 18 deletions(-)

diff --git a/drivers/net/ethernet/smsc/smc91x.h b/drivers/net/ethernet/smsc/smc91x.h
index c9d4c872e81d..749654b976bc 100644
--- a/drivers/net/ethernet/smsc/smc91x.h
+++ b/drivers/net/ethernet/smsc/smc91x.h
@@ -46,7 +46,8 @@
     defined(CONFIG_MACH_LITTLETON) ||\
     defined(CONFIG_MACH_ZYLONITE2) ||\
     defined(CONFIG_ARCH_VIPER) ||\
-    defined(CONFIG_MACH_STARGATE2)
+    defined(CONFIG_MACH_STARGATE2) ||\
+    defined(CONFIG_ARCH_VERSATILE)
 
 #include <asm/mach-types.h>
 
@@ -154,6 +155,8 @@ static inline void SMC_outw(u16 val, void __iomem *ioaddr, int reg)
 #define SMC_outl(v, a, r)	writel(v, (a) + (r))
 #define SMC_insl(a, r, p, l)	readsl((a) + (r), p, l)
 #define SMC_outsl(a, r, p, l)	writesl((a) + (r), p, l)
+#define SMC_insw(a, r, p, l)	readsw((a) + (r), p, l)
+#define SMC_outsw(a, r, p, l)	writesw((a) + (r), p, l)
 #define SMC_IRQ_FLAGS		(-1)	/* from resource */
 
 /* We actually can't write halfwords properly if not word aligned */
@@ -206,23 +209,6 @@ SMC_outw(u16 val, void __iomem *ioaddr, int reg)
 #define RPC_LSA_DEFAULT		RPC_LED_TX_RX
 #define RPC_LSB_DEFAULT		RPC_LED_100_10
 
-#elif	defined(CONFIG_ARCH_VERSATILE)
-
-#define SMC_CAN_USE_8BIT	1
-#define SMC_CAN_USE_16BIT	1
-#define SMC_CAN_USE_32BIT	1
-#define SMC_NOWAIT		1
-
-#define SMC_inb(a, r)		readb((a) + (r))
-#define SMC_inw(a, r)		readw((a) + (r))
-#define SMC_inl(a, r)		readl((a) + (r))
-#define SMC_outb(v, a, r)	writeb(v, (a) + (r))
-#define SMC_outw(v, a, r)	writew(v, (a) + (r))
-#define SMC_outl(v, a, r)	writel(v, (a) + (r))
-#define SMC_insl(a, r, p, l)	readsl((a) + (r), p, l)
-#define SMC_outsl(a, r, p, l)	writesl((a) + (r), p, l)
-#define SMC_IRQ_FLAGS		(-1)	/* from resource */
-
 #elif defined(CONFIG_MN10300)
 
 /*
-- 
cgit 


From 85493e6dd42dcaf0eaf0a19f12f1295e35cc3b7f Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Wed, 27 Nov 2013 18:54:31 -0800
Subject: sfc: Convert to use hwmon_device_register_with_groups

Simplify the code. Avoid race conditions caused by attributes
being created after hwmon device registration. Implicitly
(through hwmon API) add mandatory 'name' sysfs attribute.

Reviewed-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/sfc/mcdi.h     |  2 +
 drivers/net/ethernet/sfc/mcdi_mon.c | 78 ++++++++++++++-----------------------
 2 files changed, 32 insertions(+), 48 deletions(-)

diff --git a/drivers/net/ethernet/sfc/mcdi.h b/drivers/net/ethernet/sfc/mcdi.h
index 656a3277c2b2..15816cacb548 100644
--- a/drivers/net/ethernet/sfc/mcdi.h
+++ b/drivers/net/ethernet/sfc/mcdi.h
@@ -75,6 +75,8 @@ struct efx_mcdi_mon {
 	unsigned long last_update;
 	struct device *device;
 	struct efx_mcdi_mon_attribute *attrs;
+	struct attribute_group group;
+	const struct attribute_group *groups[2];
 	unsigned int n_attrs;
 };
 
diff --git a/drivers/net/ethernet/sfc/mcdi_mon.c b/drivers/net/ethernet/sfc/mcdi_mon.c
index 4cc5d95b2a5a..d72ad4fc3617 100644
--- a/drivers/net/ethernet/sfc/mcdi_mon.c
+++ b/drivers/net/ethernet/sfc/mcdi_mon.c
@@ -139,17 +139,10 @@ static int efx_mcdi_mon_update(struct efx_nic *efx)
 	return rc;
 }
 
-static ssize_t efx_mcdi_mon_show_name(struct device *dev,
-				      struct device_attribute *attr,
-				      char *buf)
-{
-	return sprintf(buf, "%s\n", KBUILD_MODNAME);
-}
-
 static int efx_mcdi_mon_get_entry(struct device *dev, unsigned int index,
 				  efx_dword_t *entry)
 {
-	struct efx_nic *efx = dev_get_drvdata(dev);
+	struct efx_nic *efx = dev_get_drvdata(dev->parent);
 	struct efx_mcdi_mon *hwmon = efx_mcdi_mon(efx);
 	int rc;
 
@@ -263,7 +256,7 @@ static ssize_t efx_mcdi_mon_show_label(struct device *dev,
 		       efx_mcdi_sensor_type[mon_attr->type].label);
 }
 
-static int
+static void
 efx_mcdi_mon_add_attr(struct efx_nic *efx, const char *name,
 		      ssize_t (*reader)(struct device *,
 					struct device_attribute *, char *),
@@ -272,7 +265,6 @@ efx_mcdi_mon_add_attr(struct efx_nic *efx, const char *name,
 {
 	struct efx_mcdi_mon *hwmon = efx_mcdi_mon(efx);
 	struct efx_mcdi_mon_attribute *attr = &hwmon->attrs[hwmon->n_attrs];
-	int rc;
 
 	strlcpy(attr->name, name, sizeof(attr->name));
 	attr->index = index;
@@ -286,10 +278,7 @@ efx_mcdi_mon_add_attr(struct efx_nic *efx, const char *name,
 	attr->dev_attr.attr.name = attr->name;
 	attr->dev_attr.attr.mode = S_IRUGO;
 	attr->dev_attr.show = reader;
-	rc = device_create_file(&efx->pci_dev->dev, &attr->dev_attr);
-	if (rc == 0)
-		++hwmon->n_attrs;
-	return rc;
+	hwmon->group.attrs[hwmon->n_attrs++] = &attr->dev_attr.attr;
 }
 
 int efx_mcdi_mon_probe(struct efx_nic *efx)
@@ -338,26 +327,22 @@ int efx_mcdi_mon_probe(struct efx_nic *efx)
 	efx_mcdi_mon_update(efx);
 
 	/* Allocate space for the maximum possible number of
-	 * attributes for this set of sensors: name of the driver plus
+	 * attributes for this set of sensors:
 	 * value, min, max, crit, alarm and label for each sensor.
 	 */
-	n_attrs = 1 + 6 * n_sensors;
+	n_attrs = 6 * n_sensors;
 	hwmon->attrs = kcalloc(n_attrs, sizeof(*hwmon->attrs), GFP_KERNEL);
 	if (!hwmon->attrs) {
 		rc = -ENOMEM;
 		goto fail;
 	}
-
-	hwmon->device = hwmon_device_register(&efx->pci_dev->dev);
-	if (IS_ERR(hwmon->device)) {
-		rc = PTR_ERR(hwmon->device);
+	hwmon->group.attrs = kcalloc(n_attrs + 1, sizeof(struct attribute *),
+				     GFP_KERNEL);
+	if (!hwmon->group.attrs) {
+		rc = -ENOMEM;
 		goto fail;
 	}
 
-	rc = efx_mcdi_mon_add_attr(efx, "name", efx_mcdi_mon_show_name, 0, 0, 0);
-	if (rc)
-		goto fail;
-
 	for (i = 0, j = -1, type = -1; ; i++) {
 		enum efx_hwmon_type hwmon_type;
 		const char *hwmon_prefix;
@@ -372,7 +357,7 @@ int efx_mcdi_mon_probe(struct efx_nic *efx)
 				page = type / 32;
 				j = -1;
 				if (page == n_pages)
-					return 0;
+					goto hwmon_register;
 
 				MCDI_SET_DWORD(inbuf, SENSOR_INFO_EXT_IN_PAGE,
 					       page);
@@ -453,28 +438,22 @@ int efx_mcdi_mon_probe(struct efx_nic *efx)
 		if (min1 != max1) {
 			snprintf(name, sizeof(name), "%s%u_input",
 				 hwmon_prefix, hwmon_index);
-			rc = efx_mcdi_mon_add_attr(
+			efx_mcdi_mon_add_attr(
 				efx, name, efx_mcdi_mon_show_value, i, type, 0);
-			if (rc)
-				goto fail;
 
 			if (hwmon_type != EFX_HWMON_POWER) {
 				snprintf(name, sizeof(name), "%s%u_min",
 					 hwmon_prefix, hwmon_index);
-				rc = efx_mcdi_mon_add_attr(
+				efx_mcdi_mon_add_attr(
 					efx, name, efx_mcdi_mon_show_limit,
 					i, type, min1);
-				if (rc)
-					goto fail;
 			}
 
 			snprintf(name, sizeof(name), "%s%u_max",
 				 hwmon_prefix, hwmon_index);
-			rc = efx_mcdi_mon_add_attr(
+			efx_mcdi_mon_add_attr(
 				efx, name, efx_mcdi_mon_show_limit,
 				i, type, max1);
-			if (rc)
-				goto fail;
 
 			if (min2 != max2) {
 				/* Assume max2 is critical value.
@@ -482,32 +461,38 @@ int efx_mcdi_mon_probe(struct efx_nic *efx)
 				 */
 				snprintf(name, sizeof(name), "%s%u_crit",
 					 hwmon_prefix, hwmon_index);
-				rc = efx_mcdi_mon_add_attr(
+				efx_mcdi_mon_add_attr(
 					efx, name, efx_mcdi_mon_show_limit,
 					i, type, max2);
-				if (rc)
-					goto fail;
 			}
 		}
 
 		snprintf(name, sizeof(name), "%s%u_alarm",
 			 hwmon_prefix, hwmon_index);
-		rc = efx_mcdi_mon_add_attr(
+		efx_mcdi_mon_add_attr(
 			efx, name, efx_mcdi_mon_show_alarm, i, type, 0);
-		if (rc)
-			goto fail;
 
 		if (type < ARRAY_SIZE(efx_mcdi_sensor_type) &&
 		    efx_mcdi_sensor_type[type].label) {
 			snprintf(name, sizeof(name), "%s%u_label",
 				 hwmon_prefix, hwmon_index);
-			rc = efx_mcdi_mon_add_attr(
+			efx_mcdi_mon_add_attr(
 				efx, name, efx_mcdi_mon_show_label, i, type, 0);
-			if (rc)
-				goto fail;
 		}
 	}
 
+hwmon_register:
+	hwmon->groups[0] = &hwmon->group;
+	hwmon->device = hwmon_device_register_with_groups(&efx->pci_dev->dev,
+							  KBUILD_MODNAME, NULL,
+							  hwmon->groups);
+	if (IS_ERR(hwmon->device)) {
+		rc = PTR_ERR(hwmon->device);
+		goto fail;
+	}
+
+	return 0;
+
 fail:
 	efx_mcdi_mon_remove(efx);
 	return rc;
@@ -516,14 +501,11 @@ fail:
 void efx_mcdi_mon_remove(struct efx_nic *efx)
 {
 	struct efx_mcdi_mon *hwmon = efx_mcdi_mon(efx);
-	unsigned int i;
 
-	for (i = 0; i < hwmon->n_attrs; i++)
-		device_remove_file(&efx->pci_dev->dev,
-				   &hwmon->attrs[i].dev_attr);
-	kfree(hwmon->attrs);
 	if (hwmon->device)
 		hwmon_device_unregister(hwmon->device);
+	kfree(hwmon->attrs);
+	kfree(hwmon->group.attrs);
 	efx_nic_free_buffer(efx, &hwmon->dma_buf);
 }
 
-- 
cgit 


From d3f7d56a7a4671d395e8af87071068a195257bf6 Mon Sep 17 00:00:00 2001
From: Shawn Landden <shawn@churchofgit.com>
Date: Sun, 24 Nov 2013 22:36:28 -0800
Subject: net: update consumers of MSG_MORE to recognize MSG_SENDPAGE_NOTLAST

Commit 35f9c09fe (tcp: tcp_sendpages() should call tcp_push() once)
added an internal flag MSG_SENDPAGE_NOTLAST, similar to
MSG_MORE.

algif_hash, algif_skcipher, and udp used MSG_MORE from tcp_sendpages()
and need to see the new flag as identical to MSG_MORE.

This fixes sendfile() on AF_ALG.

v3: also fix udp

Cc: Tom Herbert <therbert@google.com>
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: <stable@vger.kernel.org> # 3.4.x + 3.2.x
Reported-and-tested-by: Shawn Landden <shawnlandden@gmail.com>
Original-patch: Richard Weinberger <richard@nod.at>
Signed-off-by: Shawn Landden <shawn@churchofgit.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 crypto/algif_hash.c     | 3 +++
 crypto/algif_skcipher.c | 3 +++
 net/ipv4/udp.c          | 3 +++
 3 files changed, 9 insertions(+)

diff --git a/crypto/algif_hash.c b/crypto/algif_hash.c
index ef5356cd280a..850246206b12 100644
--- a/crypto/algif_hash.c
+++ b/crypto/algif_hash.c
@@ -114,6 +114,9 @@ static ssize_t hash_sendpage(struct socket *sock, struct page *page,
 	struct hash_ctx *ctx = ask->private;
 	int err;
 
+	if (flags & MSG_SENDPAGE_NOTLAST)
+		flags |= MSG_MORE;
+
 	lock_sock(sk);
 	sg_init_table(ctx->sgl.sg, 1);
 	sg_set_page(ctx->sgl.sg, page, size, offset);
diff --git a/crypto/algif_skcipher.c b/crypto/algif_skcipher.c
index 6a6dfc062d2a..a19c027b29bd 100644
--- a/crypto/algif_skcipher.c
+++ b/crypto/algif_skcipher.c
@@ -378,6 +378,9 @@ static ssize_t skcipher_sendpage(struct socket *sock, struct page *page,
 	struct skcipher_sg_list *sgl;
 	int err = -EINVAL;
 
+	if (flags & MSG_SENDPAGE_NOTLAST)
+		flags |= MSG_MORE;
+
 	lock_sock(sk);
 	if (!ctx->more && ctx->used)
 		goto unlock;
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index 44dfaa09b584..bf2b85b25491 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -1098,6 +1098,9 @@ int udp_sendpage(struct sock *sk, struct page *page, int offset,
 	struct udp_sock *up = udp_sk(sk);
 	int ret;
 
+	if (flags & MSG_SENDPAGE_NOTLAST)
+		flags |= MSG_MORE;
+
 	if (!up->pending) {
 		struct msghdr msg = {	.msg_flags = flags|MSG_MORE };
 
-- 
cgit 


From f5e0d34382e18f396d7673a84df8e3342bea7eb6 Mon Sep 17 00:00:00 2001
From: Jiri Pirko <jiri@resnulli.us>
Date: Thu, 28 Nov 2013 18:01:38 +0100
Subject: team: fix master carrier set when user linkup is enabled

When user linkup is enabled and user sets linkup of individual port,
we need to recompute linkup (carrier) of master interface so the change
is reflected. Fix this by calling __team_carrier_check() which does the
needed work.

Please apply to all stable kernels as well. Thanks.

Reported-by: Jan Tluka <jtluka@redhat.com>
Signed-off-by: Jiri Pirko <jiri@resnulli.us>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/team/team.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 34b0de09d881..736050d6b451 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -1366,6 +1366,8 @@ static int team_user_linkup_option_get(struct team *team,
 	return 0;
 }
 
+static void __team_carrier_check(struct team *team);
+
 static int team_user_linkup_option_set(struct team *team,
 				       struct team_gsetter_ctx *ctx)
 {
@@ -1373,6 +1375,7 @@ static int team_user_linkup_option_set(struct team *team,
 
 	port->user.linkup = ctx->data.bool_val;
 	team_refresh_port_linkup(port);
+	__team_carrier_check(port->team);
 	return 0;
 }
 
@@ -1392,6 +1395,7 @@ static int team_user_linkup_en_option_set(struct team *team,
 
 	port->user.linkup_enabled = ctx->data.bool_val;
 	team_refresh_port_linkup(port);
+	__team_carrier_check(port->team);
 	return 0;
 }
 
-- 
cgit 


From f1d8cba61c3c4b1eb88e507249c4cb8d635d9a76 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <edumazet@google.com>
Date: Thu, 28 Nov 2013 09:51:22 -0800
Subject: inet: fix possible seqlock deadlocks

In commit c9e9042994d3 ("ipv4: fix possible seqlock deadlock") I left
another places where IP_INC_STATS_BH() were improperly used.

udp_sendmsg(), ping_v4_sendmsg() and tcp_v4_connect() are called from
process context, not from softirq context.

This was detected by lockdep seqlock support.

Reported-by: jongman heo <jongman.heo@samsung.com>
Fixes: 584bdf8cbdf6 ("[IPV4]: Fix "ipOutNoRoutes" counter error for TCP and UDP")
Fixes: c319b4d76b9e ("net: ipv4: add IPPROTO_ICMP socket kind")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv4/ping.c     | 2 +-
 net/ipv4/tcp_ipv4.c | 2 +-
 net/ipv4/udp.c      | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
index 840cf1b9e6ee..242e7f4ed6f4 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -772,7 +772,7 @@ int ping_v4_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 		err = PTR_ERR(rt);
 		rt = NULL;
 		if (err == -ENETUNREACH)
-			IP_INC_STATS_BH(net, IPSTATS_MIB_OUTNOROUTES);
+			IP_INC_STATS(net, IPSTATS_MIB_OUTNOROUTES);
 		goto out;
 	}
 
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 59a6f8b90cd9..067213924751 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -177,7 +177,7 @@ int tcp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 	if (IS_ERR(rt)) {
 		err = PTR_ERR(rt);
 		if (err == -ENETUNREACH)
-			IP_INC_STATS_BH(sock_net(sk), IPSTATS_MIB_OUTNOROUTES);
+			IP_INC_STATS(sock_net(sk), IPSTATS_MIB_OUTNOROUTES);
 		return err;
 	}
 
diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
index bf2b85b25491..44f6a20fa29d 100644
--- a/net/ipv4/udp.c
+++ b/net/ipv4/udp.c
@@ -999,7 +999,7 @@ int udp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 			err = PTR_ERR(rt);
 			rt = NULL;
 			if (err == -ENETUNREACH)
-				IP_INC_STATS_BH(net, IPSTATS_MIB_OUTNOROUTES);
+				IP_INC_STATS(net, IPSTATS_MIB_OUTNOROUTES);
 			goto out;
 		}
 
-- 
cgit 


From af91706d5ddecb4a9858cca9e90d463037cfd498 Mon Sep 17 00:00:00 2001
From: Roberto Sassu <roberto.sassu@polito.it>
Date: Wed, 27 Nov 2013 14:40:41 +0100
Subject: ima: store address of template_fmt_copy in a pointer before calling
 strsep

This patch stores the address of the 'template_fmt_copy' variable in a new
variable, called 'template_fmt_ptr', so that the latter is passed as an
argument of strsep() instead of the former. This modification is needed
in order to correctly free the memory area referenced by
'template_fmt_copy' (strsep() modifies the pointer of the passed string).

Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Reported-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
---
 security/integrity/ima/ima_template.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/security/integrity/ima/ima_template.c b/security/integrity/ima/ima_template.c
index 913e1927f916..635695f6a185 100644
--- a/security/integrity/ima/ima_template.c
+++ b/security/integrity/ima/ima_template.c
@@ -110,7 +110,7 @@ static int template_desc_init_fields(const char *template_fmt,
 				     struct ima_template_field ***fields,
 				     int *num_fields)
 {
-	char *c, *template_fmt_copy;
+	char *c, *template_fmt_copy, *template_fmt_ptr;
 	int template_num_fields = template_fmt_size(template_fmt);
 	int i, result = 0;
 
@@ -127,7 +127,9 @@ static int template_desc_init_fields(const char *template_fmt,
 		result = -ENOMEM;
 		goto out;
 	}
-	for (i = 0; (c = strsep(&template_fmt_copy, "|")) != NULL &&
+
+	template_fmt_ptr = template_fmt_copy;
+	for (i = 0; (c = strsep(&template_fmt_ptr, "|")) != NULL &&
 	     i < template_num_fields; i++) {
 		struct ima_template_field *f = lookup_template_field(c);
 
-- 
cgit 


From 42ce4126d8bc2e128e1f207cf79bb0623fac498f Mon Sep 17 00:00:00 2001
From: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Date: Fri, 8 Nov 2013 01:54:07 +0000
Subject: igb: Fixed Wake On LAN support

This patch fixes Wake on LAN being reported as supported on some Ethernet
ports, in contrary to Hardware capability.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/igb/igb_ethtool.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/igb/igb_ethtool.c b/drivers/net/ethernet/intel/igb/igb_ethtool.c
index b0f3666b1d7f..c3143da497c8 100644
--- a/drivers/net/ethernet/intel/igb/igb_ethtool.c
+++ b/drivers/net/ethernet/intel/igb/igb_ethtool.c
@@ -2062,14 +2062,15 @@ static void igb_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
 {
 	struct igb_adapter *adapter = netdev_priv(netdev);
 
-	wol->supported = WAKE_UCAST | WAKE_MCAST |
-			 WAKE_BCAST | WAKE_MAGIC |
-			 WAKE_PHY;
 	wol->wolopts = 0;
 
 	if (!(adapter->flags & IGB_FLAG_WOL_SUPPORTED))
 		return;
 
+	wol->supported = WAKE_UCAST | WAKE_MCAST |
+			 WAKE_BCAST | WAKE_MAGIC |
+			 WAKE_PHY;
+
 	/* apply any specific unsupported masks here */
 	switch (adapter->hw.device_id) {
 	default:
-- 
cgit 


From 6a7d64e3e09e11181a07a2e8cd6af5d6355133be Mon Sep 17 00:00:00 2001
From: yzhu1 <yanjun.zhu@windriver.com>
Date: Sat, 23 Nov 2013 07:07:40 +0000
Subject: e1000: prevent oops when adapter is being closed and reset
 simultaneously

This change is based on a similar change made to e1000e support in
commit bb9e44d0d0f4 ("e1000e: prevent oops when adapter is being closed
and reset simultaneously").  The same issue has also been observed
on the older e1000 cards.

Here, we have increased the RESET_COUNT value to 50 because there are too
many accesses to e1000 nic on stress tests to e1000 nic, it is not enough
to set RESET_COUT 25. Experimentation has shown that it is enough to set
RESET_COUNT 50.

Signed-off-by: yzhu1 <yanjun.zhu@windriver.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/e1000/e1000.h      | 5 +++++
 drivers/net/ethernet/intel/e1000/e1000_main.c | 9 +++++++++
 2 files changed, 14 insertions(+)

diff --git a/drivers/net/ethernet/intel/e1000/e1000.h b/drivers/net/ethernet/intel/e1000/e1000.h
index 58c147271a36..e4093d1f64cb 100644
--- a/drivers/net/ethernet/intel/e1000/e1000.h
+++ b/drivers/net/ethernet/intel/e1000/e1000.h
@@ -83,6 +83,11 @@ struct e1000_adapter;
 
 #define E1000_MAX_INTR			10
 
+/*
+ * Count for polling __E1000_RESET condition every 10-20msec.
+ */
+#define E1000_CHECK_RESET_COUNT	50
+
 /* TX/RX descriptor defines */
 #define E1000_DEFAULT_TXD		256
 #define E1000_MAX_TXD			256
diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
index e38622825fa7..c0f52174e4c8 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
@@ -1440,6 +1440,10 @@ static int e1000_close(struct net_device *netdev)
 {
 	struct e1000_adapter *adapter = netdev_priv(netdev);
 	struct e1000_hw *hw = &adapter->hw;
+	int count = E1000_CHECK_RESET_COUNT;
+
+	while (test_bit(__E1000_RESETTING, &adapter->flags) && count--)
+		usleep_range(10000, 20000);
 
 	WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags));
 	e1000_down(adapter);
@@ -4963,6 +4967,11 @@ static int __e1000_shutdown(struct pci_dev *pdev, bool *enable_wake)
 	netif_device_detach(netdev);
 
 	if (netif_running(netdev)) {
+		int count = E1000_CHECK_RESET_COUNT;
+
+		while (test_bit(__E1000_RESETTING, &adapter->flags) && count--)
+			usleep_range(10000, 20000);
+
 		WARN_ON(test_bit(__E1000_RESETTING, &adapter->flags));
 		e1000_down(adapter);
 	}
-- 
cgit 


From b2f963bfaebadc9117b29f806630ea3bcaec403d Mon Sep 17 00:00:00 2001
From: Vladimir Davydov <VDavydov@parallels.com>
Date: Sat, 23 Nov 2013 07:17:56 +0000
Subject: e1000: fix lockdep warning in e1000_reset_task

The patch fixes the following lockdep warning, which is 100%
reproducible on network restart:

======================================================
[ INFO: possible circular locking dependency detected ]
3.12.0+ #47 Tainted: GF
-------------------------------------------------------
kworker/1:1/27 is trying to acquire lock:
 ((&(&adapter->watchdog_task)->work)){+.+...}, at: [<ffffffff8108a5b0>] flush_work+0x0/0x70

but task is already holding lock:
 (&adapter->mutex){+.+...}, at: [<ffffffffa0177c0a>] e1000_reset_task+0x4a/0xa0 [e1000]

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

-> #1 (&adapter->mutex){+.+...}:
       [<ffffffff810bdb5d>] lock_acquire+0x9d/0x120
       [<ffffffff816b8cbc>] mutex_lock_nested+0x4c/0x390
       [<ffffffffa017233d>] e1000_watchdog+0x7d/0x5b0 [e1000]
       [<ffffffff8108b972>] process_one_work+0x1d2/0x510
       [<ffffffff8108ca80>] worker_thread+0x120/0x3a0
       [<ffffffff81092c1e>] kthread+0xee/0x110
       [<ffffffff816c3d7c>] ret_from_fork+0x7c/0xb0

-> #0 ((&(&adapter->watchdog_task)->work)){+.+...}:
       [<ffffffff810bd9c0>] __lock_acquire+0x1710/0x1810
       [<ffffffff810bdb5d>] lock_acquire+0x9d/0x120
       [<ffffffff8108a5eb>] flush_work+0x3b/0x70
       [<ffffffff8108b5d8>] __cancel_work_timer+0x98/0x140
       [<ffffffff8108b693>] cancel_delayed_work_sync+0x13/0x20
       [<ffffffffa0170cec>] e1000_down_and_stop+0x3c/0x60 [e1000]
       [<ffffffffa01775b1>] e1000_down+0x131/0x220 [e1000]
       [<ffffffffa0177c12>] e1000_reset_task+0x52/0xa0 [e1000]
       [<ffffffff8108b972>] process_one_work+0x1d2/0x510
       [<ffffffff8108ca80>] worker_thread+0x120/0x3a0
       [<ffffffff81092c1e>] kthread+0xee/0x110
       [<ffffffff816c3d7c>] ret_from_fork+0x7c/0xb0

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(&adapter->mutex);
                               lock((&(&adapter->watchdog_task)->work));
                               lock(&adapter->mutex);
  lock((&(&adapter->watchdog_task)->work));

 *** DEADLOCK ***

3 locks held by kworker/1:1/27:
 #0:  (events){.+.+.+}, at: [<ffffffff8108b906>] process_one_work+0x166/0x510
 #1:  ((&adapter->reset_task)){+.+...}, at: [<ffffffff8108b906>] process_one_work+0x166/0x510
 #2:  (&adapter->mutex){+.+...}, at: [<ffffffffa0177c0a>] e1000_reset_task+0x4a/0xa0 [e1000]

stack backtrace:
CPU: 1 PID: 27 Comm: kworker/1:1 Tainted: GF            3.12.0+ #47
Hardware name: System manufacturer System Product Name/P5B-VM SE, BIOS 0501    05/31/2007
Workqueue: events e1000_reset_task [e1000]
 ffffffff820f6000 ffff88007b9dba98 ffffffff816b54a2 0000000000000002
 ffffffff820f5e50 ffff88007b9dbae8 ffffffff810ba936 ffff88007b9dbac8
 ffff88007b9dbb48 ffff88007b9d8f00 ffff88007b9d8780 ffff88007b9d8f00
Call Trace:
 [<ffffffff816b54a2>] dump_stack+0x49/0x5f
 [<ffffffff810ba936>] print_circular_bug+0x216/0x310
 [<ffffffff810bd9c0>] __lock_acquire+0x1710/0x1810
 [<ffffffff8108a5b0>] ? __flush_work+0x250/0x250
 [<ffffffff810bdb5d>] lock_acquire+0x9d/0x120
 [<ffffffff8108a5b0>] ? __flush_work+0x250/0x250
 [<ffffffff8108a5eb>] flush_work+0x3b/0x70
 [<ffffffff8108a5b0>] ? __flush_work+0x250/0x250
 [<ffffffff8108b5d8>] __cancel_work_timer+0x98/0x140
 [<ffffffff8108b693>] cancel_delayed_work_sync+0x13/0x20
 [<ffffffffa0170cec>] e1000_down_and_stop+0x3c/0x60 [e1000]
 [<ffffffffa01775b1>] e1000_down+0x131/0x220 [e1000]
 [<ffffffffa0177c12>] e1000_reset_task+0x52/0xa0 [e1000]
 [<ffffffff8108b972>] process_one_work+0x1d2/0x510
 [<ffffffff8108b906>] ? process_one_work+0x166/0x510
 [<ffffffff8108ca80>] worker_thread+0x120/0x3a0
 [<ffffffff8108c960>] ? manage_workers+0x2c0/0x2c0
 [<ffffffff81092c1e>] kthread+0xee/0x110
 [<ffffffff81092b30>] ? __init_kthread_worker+0x70/0x70
 [<ffffffff816c3d7c>] ret_from_fork+0x7c/0xb0
 [<ffffffff81092b30>] ? __init_kthread_worker+0x70/0x70

== The issue background ==

The problem occurs, because e1000_down(), which is called under
adapter->mutex by e1000_reset_task(), tries to synchronously cancel
e1000 auxiliary works (reset_task, watchdog_task, phy_info_task,
fifo_stall_task), which take adapter->mutex in their handlers. So the
question is what does adapter->mutex protect there?

The adapter->mutex was introduced by commit 0ef4ee ("e1000: convert to
private mutex from rtnl") as a replacement for rtnl_lock() taken in the
asynchronous handlers. It targeted on fixing a similar lockdep warning
issued when e1000_down() was called under rtnl_lock(), and it fixed it,
but unfortunately it introduced the lockdep warning described above.
Anyway, that said the source of this bug is that the asynchronous works
were made to take rtnl_lock() some time ago, so let's look deeper and
find why it was added there.

The rtnl_lock() was added to asynchronous handlers by commit 338c15
("e1000: fix occasional panic on unload") in order to prevent
asynchronous handlers from execution after the module is unloaded
(e1000_down() is called) as it follows from the comment to the commit:

> Net drivers in general have an issue where timers fired
> by mod_timer or work threads with schedule_work are running
> outside of the rtnl_lock.
>
> With no other lock protection these routines are vulnerable
> to races with driver unload or reset paths.
>
> The longer term solution to this might be a redesign with
> safer locks being taken in the driver to guarantee no
> reentrance, but for now a safe and effective fix is
> to take the rtnl_lock in these routines.

I'm not sure if this locking scheme fixed the problem or just made it
unlikely, although I incline to the latter. Anyway, this was long time
ago when e1000 auxiliary works were implemented as timers scheduling
real work handlers in their routines. The e1000_down() function only
canceled the timers, but left the real handlers running if they were
running, which could result in work execution after module unload.
Today, the e1000 driver uses sane delayed works instead of the pair
timer+work to implement its delayed asynchronous handlers, and the
e1000_down() synchronously cancels all the works so that the problem
that commit 338c15 tried to cope with disappeared, and we don't need any
locks in the handlers any more. Moreover, any locking there can
potentially result in a deadlock.

So, this patch reverts commits 0ef4ee and 338c15.

Fixes: 0ef4eedc2e98 ("e1000: convert to private mutex from rtnl")
Fixes: 338c15e470d8 ("e1000: fix occasional panic on unload")
Cc: Tushar Dave <tushar.n.dave@intel.com>
Cc: Patrick McHardy <kaber@trash.net>
Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/e1000/e1000.h      |  2 --
 drivers/net/ethernet/intel/e1000/e1000_main.c | 36 +++------------------------
 2 files changed, 3 insertions(+), 35 deletions(-)

diff --git a/drivers/net/ethernet/intel/e1000/e1000.h b/drivers/net/ethernet/intel/e1000/e1000.h
index e4093d1f64cb..f9313b36c887 100644
--- a/drivers/net/ethernet/intel/e1000/e1000.h
+++ b/drivers/net/ethernet/intel/e1000/e1000.h
@@ -317,8 +317,6 @@ struct e1000_adapter {
 	struct delayed_work watchdog_task;
 	struct delayed_work fifo_stall_task;
 	struct delayed_work phy_info_task;
-
-	struct mutex mutex;
 };
 
 enum e1000_state_t {
diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
index c0f52174e4c8..619b0cb60f2f 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
@@ -544,21 +544,8 @@ void e1000_down(struct e1000_adapter *adapter)
 	e1000_clean_all_rx_rings(adapter);
 }
 
-static void e1000_reinit_safe(struct e1000_adapter *adapter)
-{
-	while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
-		msleep(1);
-	mutex_lock(&adapter->mutex);
-	e1000_down(adapter);
-	e1000_up(adapter);
-	mutex_unlock(&adapter->mutex);
-	clear_bit(__E1000_RESETTING, &adapter->flags);
-}
-
 void e1000_reinit_locked(struct e1000_adapter *adapter)
 {
-	/* if rtnl_lock is not held the call path is bogus */
-	ASSERT_RTNL();
 	WARN_ON(in_interrupt());
 	while (test_and_set_bit(__E1000_RESETTING, &adapter->flags))
 		msleep(1);
@@ -1316,7 +1303,6 @@ static int e1000_sw_init(struct e1000_adapter *adapter)
 	e1000_irq_disable(adapter);
 
 	spin_lock_init(&adapter->stats_lock);
-	mutex_init(&adapter->mutex);
 
 	set_bit(__E1000_DOWN, &adapter->flags);
 
@@ -2329,11 +2315,8 @@ static void e1000_update_phy_info_task(struct work_struct *work)
 	struct e1000_adapter *adapter = container_of(work,
 						     struct e1000_adapter,
 						     phy_info_task.work);
-	if (test_bit(__E1000_DOWN, &adapter->flags))
-		return;
-	mutex_lock(&adapter->mutex);
+
 	e1000_phy_get_info(&adapter->hw, &adapter->phy_info);
-	mutex_unlock(&adapter->mutex);
 }
 
 /**
@@ -2349,9 +2332,6 @@ static void e1000_82547_tx_fifo_stall_task(struct work_struct *work)
 	struct net_device *netdev = adapter->netdev;
 	u32 tctl;
 
-	if (test_bit(__E1000_DOWN, &adapter->flags))
-		return;
-	mutex_lock(&adapter->mutex);
 	if (atomic_read(&adapter->tx_fifo_stall)) {
 		if ((er32(TDT) == er32(TDH)) &&
 		   (er32(TDFT) == er32(TDFH)) &&
@@ -2372,7 +2352,6 @@ static void e1000_82547_tx_fifo_stall_task(struct work_struct *work)
 			schedule_delayed_work(&adapter->fifo_stall_task, 1);
 		}
 	}
-	mutex_unlock(&adapter->mutex);
 }
 
 bool e1000_has_link(struct e1000_adapter *adapter)
@@ -2426,10 +2405,6 @@ static void e1000_watchdog(struct work_struct *work)
 	struct e1000_tx_ring *txdr = adapter->tx_ring;
 	u32 link, tctl;
 
-	if (test_bit(__E1000_DOWN, &adapter->flags))
-		return;
-
-	mutex_lock(&adapter->mutex);
 	link = e1000_has_link(adapter);
 	if ((netif_carrier_ok(netdev)) && link)
 		goto link_up;
@@ -2520,7 +2495,7 @@ link_up:
 			adapter->tx_timeout_count++;
 			schedule_work(&adapter->reset_task);
 			/* exit immediately since reset is imminent */
-			goto unlock;
+			return;
 		}
 	}
 
@@ -2548,9 +2523,6 @@ link_up:
 	/* Reschedule the task */
 	if (!test_bit(__E1000_DOWN, &adapter->flags))
 		schedule_delayed_work(&adapter->watchdog_task, 2 * HZ);
-
-unlock:
-	mutex_unlock(&adapter->mutex);
 }
 
 enum latency_range {
@@ -3499,10 +3471,8 @@ static void e1000_reset_task(struct work_struct *work)
 	struct e1000_adapter *adapter =
 		container_of(work, struct e1000_adapter, reset_task);
 
-	if (test_bit(__E1000_DOWN, &adapter->flags))
-		return;
 	e_err(drv, "Reset adapter\n");
-	e1000_reinit_safe(adapter);
+	e1000_reinit_locked(adapter);
 }
 
 /**
-- 
cgit 


From 74a1b1ea8a30b035aaad833bbd6b9263e72acfac Mon Sep 17 00:00:00 2001
From: Vladimir Davydov <VDavydov@parallels.com>
Date: Sat, 23 Nov 2013 07:18:01 +0000
Subject: e1000: fix possible reset_task running after adapter down

On e1000_down(), we should ensure every asynchronous work is canceled
before proceeding. Since the watchdog_task can schedule other works
apart from itself, it should be stopped first, but currently it is
stopped after the reset_task. This can result in the following race
leading to the reset_task running after the module unload:

e1000_down_and_stop():			e1000_watchdog():
----------------------			-----------------

cancel_work_sync(reset_task)
					schedule_work(reset_task)
cancel_delayed_work_sync(watchdog_task)

The patch moves cancel_delayed_work_sync(watchdog_task) at the beginning
of e1000_down_and_stop() thus ensuring the race is impossible.

Cc: Tushar Dave <tushar.n.dave@intel.com>
Cc: Patrick McHardy <kaber@trash.net>
Signed-off-by: Vladimir Davydov <vdavydov@parallels.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/e1000/e1000_main.c | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/intel/e1000/e1000_main.c b/drivers/net/ethernet/intel/e1000/e1000_main.c
index 619b0cb60f2f..46e6544ed1b7 100644
--- a/drivers/net/ethernet/intel/e1000/e1000_main.c
+++ b/drivers/net/ethernet/intel/e1000/e1000_main.c
@@ -494,13 +494,20 @@ static void e1000_down_and_stop(struct e1000_adapter *adapter)
 {
 	set_bit(__E1000_DOWN, &adapter->flags);
 
-	/* Only kill reset task if adapter is not resetting */
-	if (!test_bit(__E1000_RESETTING, &adapter->flags))
-		cancel_work_sync(&adapter->reset_task);
-
 	cancel_delayed_work_sync(&adapter->watchdog_task);
+
+	/*
+	 * Since the watchdog task can reschedule other tasks, we should cancel
+	 * it first, otherwise we can run into the situation when a work is
+	 * still running after the adapter has been turned down.
+	 */
+
 	cancel_delayed_work_sync(&adapter->phy_info_task);
 	cancel_delayed_work_sync(&adapter->fifo_stall_task);
+
+	/* Only kill reset task if adapter is not resetting */
+	if (!test_bit(__E1000_RESETTING, &adapter->flags))
+		cancel_work_sync(&adapter->reset_task);
 }
 
 void e1000_down(struct e1000_adapter *adapter)
-- 
cgit 


From ae72c8d068b3440c0b45df284303794cfbc0f4f2 Mon Sep 17 00:00:00 2001
From: John Fastabend <john.r.fastabend@intel.com>
Date: Sat, 9 Nov 2013 07:11:26 +0000
Subject: ixgbe: ixgbe_fwd_ring_down needs to be static

When compiling with -Wstrict-prototypes gcc catches a static
I missed.

./ixgbe_main.c:4254: warning: no previous prototype for 'ixgbe_fwd_ring_down'

Reported-by: Phillip Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 0c55079ebee3..ad9d67095d52 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -4251,8 +4251,8 @@ static void ixgbe_disable_fwd_ring(struct ixgbe_fwd_adapter *vadapter,
 	rx_ring->l2_accel_priv = NULL;
 }
 
-int ixgbe_fwd_ring_down(struct net_device *vdev,
-			struct ixgbe_fwd_adapter *accel)
+static int ixgbe_fwd_ring_down(struct net_device *vdev,
+			       struct ixgbe_fwd_adapter *accel)
 {
 	struct ixgbe_adapter *adapter = accel->real_adapter;
 	unsigned int rxbase = accel->rx_base_queue;
-- 
cgit 


From 8bf1264d2f12c6fa8645d097275568c1b62c246c Mon Sep 17 00:00:00 2001
From: John Fastabend <john.r.fastabend@intel.com>
Date: Tue, 12 Nov 2013 12:13:29 +0000
Subject: ixgbe: turn NETIF_F_HW_L2FW_DOFFLOAD off by default

NETIF_F_HW_L2FW_DOFFLOAD allows upper layer net devices such
as macvlan to use queues in the hardware to directly submit and
receive skbs.

This creates a subtle change in the datapath though. One change
being the skb may no longer use the root devices qdisc.

Because users may not expect this we can't enable the feature
by default unless the hardware can offload all the software
functionality above it. So for now disable it by default and
let users opt in.

Signed-off-by: John Fastabend <john.r.fastabend@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index ad9d67095d52..cc06854296a3 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -7986,10 +7986,9 @@ skip_sriov:
 			   NETIF_F_TSO |
 			   NETIF_F_TSO6 |
 			   NETIF_F_RXHASH |
-			   NETIF_F_RXCSUM |
-			   NETIF_F_HW_L2FW_DOFFLOAD;
+			   NETIF_F_RXCSUM;
 
-	netdev->hw_features = netdev->features;
+	netdev->hw_features = netdev->features | NETIF_F_HW_L2FW_DOFFLOAD;
 
 	switch (adapter->hw.mac.type) {
 	case ixgbe_mac_82599EB:
-- 
cgit 


From 8821754704a661623083a9dedf425114199600ba Mon Sep 17 00:00:00 2001
From: Mark Rustad <mark.d.rustad@intel.com>
Date: Sat, 23 Nov 2013 03:19:19 +0000
Subject: ixgbe: Make ixgbe_identify_qsfp_module_generic static

Correct a namespace complaint by making the function static
and moving the prototype into the .c file.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c | 3 ++-
 drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h | 1 -
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
index e4c676006be9..39217e5ff7dc 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
@@ -46,6 +46,7 @@ static bool ixgbe_get_i2c_data(u32 *i2cctl);
 static void ixgbe_i2c_bus_clear(struct ixgbe_hw *hw);
 static enum ixgbe_phy_type ixgbe_get_phy_type_from_id(u32 phy_id);
 static s32 ixgbe_get_phy_id(struct ixgbe_hw *hw);
+static s32 ixgbe_identify_qsfp_module_generic(struct ixgbe_hw *hw);
 
 /**
  *  ixgbe_identify_phy_generic - Get physical layer module
@@ -1164,7 +1165,7 @@ err_read_i2c_eeprom:
  *
  * Searches for and identifies the QSFP module and assigns appropriate PHY type
  **/
-s32 ixgbe_identify_qsfp_module_generic(struct ixgbe_hw *hw)
+static s32 ixgbe_identify_qsfp_module_generic(struct ixgbe_hw *hw)
 {
 	struct ixgbe_adapter *adapter = hw->back;
 	s32 status = IXGBE_ERR_PHY_ADDR_INVALID;
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
index aae900a256da..fffcbdd2bf0e 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.h
@@ -145,7 +145,6 @@ s32 ixgbe_get_phy_firmware_version_generic(struct ixgbe_hw *hw,
 s32 ixgbe_reset_phy_nl(struct ixgbe_hw *hw);
 s32 ixgbe_identify_module_generic(struct ixgbe_hw *hw);
 s32 ixgbe_identify_sfp_module_generic(struct ixgbe_hw *hw);
-s32 ixgbe_identify_qsfp_module_generic(struct ixgbe_hw *hw);
 s32 ixgbe_get_sfp_init_sequence_offsets(struct ixgbe_hw *hw,
                                         u16 *list_offset,
                                         u16 *data_offset);
-- 
cgit 


From 11a5aa32562e1e90ab2d0278748fe0fbecda1cbe Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Mon, 25 Nov 2013 21:52:25 +0000
Subject: ARM: dma-mapping: check DMA mask against available memory

Some buses have negative offsets, which causes the DMA mask checks to
falsely fail.  Fix this by using the actual amount of memory fitted in
the system.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/mm/dma-mapping.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c
index 79f8b39801a8..f6b6bfa88ecf 100644
--- a/arch/arm/mm/dma-mapping.c
+++ b/arch/arm/mm/dma-mapping.c
@@ -9,6 +9,7 @@
  *
  *  DMA uncached mapping support.
  */
+#include <linux/bootmem.h>
 #include <linux/module.h>
 #include <linux/mm.h>
 #include <linux/gfp.h>
@@ -162,6 +163,8 @@ static u64 get_coherent_dma_mask(struct device *dev)
 	u64 mask = (u64)DMA_BIT_MASK(32);
 
 	if (dev) {
+		unsigned long max_dma_pfn;
+
 		mask = dev->coherent_dma_mask;
 
 		/*
@@ -173,6 +176,8 @@ static u64 get_coherent_dma_mask(struct device *dev)
 			return 0;
 		}
 
+		max_dma_pfn = min(max_pfn, arm_dma_pfn_limit);
+
 		/*
 		 * If the mask allows for more memory than we can address,
 		 * and we actually have that much memory, then fail the
@@ -180,7 +185,7 @@ static u64 get_coherent_dma_mask(struct device *dev)
 		 */
 		if (sizeof(mask) != sizeof(dma_addr_t) &&
 		    mask > (dma_addr_t)~0 &&
-		    dma_to_pfn(dev, ~0) > arm_dma_pfn_limit) {
+		    dma_to_pfn(dev, ~0) > max_dma_pfn) {
 			dev_warn(dev, "Coherent DMA mask %#llx is larger than dma_addr_t allows\n",
 				 mask);
 			dev_warn(dev, "Driver did not use or check the return value from dma_set_coherent_mask()?\n");
@@ -192,7 +197,7 @@ static u64 get_coherent_dma_mask(struct device *dev)
 		 * fits within the allowable addresses which we can
 		 * allocate.
 		 */
-		if (dma_to_pfn(dev, mask) < arm_dma_pfn_limit) {
+		if (dma_to_pfn(dev, mask) < max_dma_pfn) {
 			dev_warn(dev, "Coherent DMA mask %#llx (pfn %#lx-%#lx) covers a smaller range of system memory than the DMA zone pfn 0x0-%#lx\n",
 				 mask,
 				 dma_to_pfn(dev, 0), dma_to_pfn(dev, mask) + 1,
-- 
cgit 


From d8aa712c30148ba26fd89a5dc14de95d4c375184 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 28 Nov 2013 21:43:40 +0000
Subject: ARM: fix booting low-vectors machines

Commit f6f91b0d9fd9 (ARM: allow kuser helpers to be removed from the
vector page) required two pages for the vectors code.  Although the
code setting up the initial page tables was updated, the code which
allocates page tables for new processes wasn't, neither was the code
which tears down the mappings.  Fix this.

Fixes: f6f91b0d9fd9 ("ARM: allow kuser helpers to be removed from the vector page")
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: <stable@vger.kernel.org>
---
 arch/arm/include/asm/pgtable.h | 2 +-
 arch/arm/mm/mmap.c             | 2 +-
 arch/arm/mm/pgd.c              | 3 ++-
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index be956dbf6bae..1571d126e9dd 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -61,7 +61,7 @@ extern void __pgd_error(const char *file, int line, pgd_t);
  * mapping to be mapped at.  This is particularly important for
  * non-high vector CPUs.
  */
-#define FIRST_USER_ADDRESS	PAGE_SIZE
+#define FIRST_USER_ADDRESS	(PAGE_SIZE * 2)
 
 /*
  * Use TASK_SIZE as the ceiling argument for free_pgtables() and
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index d27158c38eb0..5e85ed371364 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -146,7 +146,7 @@ arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0,
 
 	info.flags = VM_UNMAPPED_AREA_TOPDOWN;
 	info.length = len;
-	info.low_limit = PAGE_SIZE;
+	info.low_limit = FIRST_USER_ADDRESS;
 	info.high_limit = mm->mmap_base;
 	info.align_mask = do_align ? (PAGE_MASK & (SHMLBA - 1)) : 0;
 	info.align_offset = pgoff << PAGE_SHIFT;
diff --git a/arch/arm/mm/pgd.c b/arch/arm/mm/pgd.c
index 0acb089d0f70..1046b373d1ae 100644
--- a/arch/arm/mm/pgd.c
+++ b/arch/arm/mm/pgd.c
@@ -87,7 +87,8 @@ pgd_t *pgd_alloc(struct mm_struct *mm)
 		init_pud = pud_offset(init_pgd, 0);
 		init_pmd = pmd_offset(init_pud, 0);
 		init_pte = pte_offset_map(init_pmd, 0);
-		set_pte_ext(new_pte, *init_pte, 0);
+		set_pte_ext(new_pte + 0, init_pte[0], 0);
+		set_pte_ext(new_pte + 1, init_pte[1], 0);
 		pte_unmap(init_pte);
 		pte_unmap(new_pte);
 	}
-- 
cgit 


From 43659222e7a0113912ed02f6b2231550b3e471ac Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Thu, 28 Nov 2013 21:55:41 +0000
Subject: ARM: footbridge: fix VGA initialisation

It's no good setting vga_base after the VGA console has been
initialised, because if we do that we get this:

Unable to handle kernel paging request at virtual address 000b8000
pgd = c0004000
[000b8000] *pgd=07ffc831, *pte=00000000, *ppte=00000000
0Internal error: Oops: 5017 [#1] ARM
Modules linked in:
CPU: 0 PID: 0 Comm: swapper Not tainted 3.12.0+ #49
task: c03e2974 ti: c03d8000 task.ti: c03d8000
PC is at vgacon_startup+0x258/0x39c
LR is at request_resource+0x10/0x1c
pc : [<c01725d0>]    lr : [<c0022b50>]    psr: 60000053
sp : c03d9f68  ip : 000b8000  fp : c03d9f8c
r10: 000055aa  r9 : 4401a103  r8 : ffffaa55
r7 : c03e357c  r6 : c051b460  r5 : 000000ff  r4 : 000c0000
r3 : 000b8000  r2 : c03e0514  r1 : 00000000  r0 : c0304971
Flags: nZCv  IRQs on  FIQs off  Mode SVC_32  ISA ARM  Segment kernel

which is an access to the 0xb8000 without the PCI offset required to
make it work.

Fixes: cc22b4c18540 ("ARM: set vga memory base at run-time")
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: <stable@vger.kernel.org>
---
 arch/arm/mach-footbridge/common.c  | 3 +++
 arch/arm/mach-footbridge/dc21285.c | 2 --
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mach-footbridge/common.c b/arch/arm/mach-footbridge/common.c
index 2739ca2c1334..e0091685fd48 100644
--- a/arch/arm/mach-footbridge/common.c
+++ b/arch/arm/mach-footbridge/common.c
@@ -15,6 +15,7 @@
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/spinlock.h>
+#include <video/vga.h>
 
 #include <asm/pgtable.h>
 #include <asm/page.h>
@@ -196,6 +197,8 @@ void __init footbridge_map_io(void)
 		iotable_init(ebsa285_host_io_desc, ARRAY_SIZE(ebsa285_host_io_desc));
 		pci_map_io_early(__phys_to_pfn(DC21285_PCI_IO));
 	}
+
+	vga_base = PCIMEM_BASE;
 }
 
 void footbridge_restart(enum reboot_mode mode, const char *cmd)
diff --git a/arch/arm/mach-footbridge/dc21285.c b/arch/arm/mach-footbridge/dc21285.c
index 3490a24f969e..7c2fdae9a38b 100644
--- a/arch/arm/mach-footbridge/dc21285.c
+++ b/arch/arm/mach-footbridge/dc21285.c
@@ -18,7 +18,6 @@
 #include <linux/irq.h>
 #include <linux/io.h>
 #include <linux/spinlock.h>
-#include <video/vga.h>
 
 #include <asm/irq.h>
 #include <asm/mach/pci.h>
@@ -291,7 +290,6 @@ void __init dc21285_preinit(void)
 	int cfn_mode;
 
 	pcibios_min_mem = 0x81000000;
-	vga_base = PCIMEM_BASE;
 
 	mem_size = (unsigned int)high_memory - PAGE_OFFSET;
 	for (mem_mask = 0x00100000; mem_mask < 0x10000000; mem_mask <<= 1)
-- 
cgit 


From 7f88c6b23afbd31545c676dea77ba9593a1a14bf Mon Sep 17 00:00:00 2001
From: Hannes Frederic Sowa <hannes@stressinduktion.org>
Date: Fri, 29 Nov 2013 06:39:44 +0100
Subject: ipv6: fix possible seqlock deadlock in ip6_finish_output2

IPv6 stats are 64 bits and thus are protected with a seqlock. By not
disabling bottom-half we could deadlock here if we don't disable bh and
a softirq reentrantly updates the same mib.

Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/ipv6/ip6_output.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c
index 59df872e2f4d..4acdb63495db 100644
--- a/net/ipv6/ip6_output.c
+++ b/net/ipv6/ip6_output.c
@@ -116,8 +116,8 @@ static int ip6_finish_output2(struct sk_buff *skb)
 	}
 	rcu_read_unlock_bh();
 
-	IP6_INC_STATS_BH(dev_net(dst->dev),
-			 ip6_dst_idev(dst), IPSTATS_MIB_OUTNOROUTES);
+	IP6_INC_STATS(dev_net(dst->dev),
+		      ip6_dst_idev(dst), IPSTATS_MIB_OUTNOROUTES);
 	kfree_skb(skb);
 	return -EINVAL;
 }
-- 
cgit 


From 19990e29fedc2fe7056e66da31364978d49ea1e1 Mon Sep 17 00:00:00 2001
From: Arvid Brodin <arvid.brodin@alten.se>
Date: Fri, 29 Nov 2013 23:36:00 +0100
Subject: MAINTAINERS: Added net/hsr/ maintainer

Signed-off-by: Arvid Brodin <arvid.brodin@alten.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 MAINTAINERS | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 63f30484932b..8899c60046eb 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4044,6 +4044,12 @@ W:	http://www.pharscape.org
 S:	Maintained
 F:	drivers/net/usb/hso.c
 
+HSR NETWORK PROTOCOL
+M:	Arvid Brodin <arvid.brodin@alten.se>
+L:	netdev@vger.kernel.org
+S:	Maintained
+F:	net/hsr/
+
 HTCPEN TOUCHSCREEN DRIVER
 M:	Pau Oliva Fora <pof@eslack.org>
 L:	linux-input@vger.kernel.org
-- 
cgit 


From 213e3bc723e53af0976421d2808ea3f6cc821c56 Mon Sep 17 00:00:00 2001
From: Arvid Brodin <arvid.brodin@alten.se>
Date: Fri, 29 Nov 2013 23:37:07 +0100
Subject: net/hsr: Very small fix of comment style.

Signed-off-by: Arvid Brodin <arvid.brodin@alten.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/hsr/hsr_framereg.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c
index 003f5bb3acd2..4bdab1521878 100644
--- a/net/hsr/hsr_framereg.c
+++ b/net/hsr/hsr_framereg.c
@@ -288,7 +288,8 @@ void hsr_addr_subst_dest(struct hsr_priv *hsr_priv, struct ethhdr *ethhdr,
 static bool seq_nr_after(u16 a, u16 b)
 {
 	/* Remove inconsistency where
-	 * seq_nr_after(a, b) == seq_nr_before(a, b) */
+	 * seq_nr_after(a, b) == seq_nr_before(a, b)
+	 */
 	if ((int) b - a == 32768)
 		return false;
 
-- 
cgit 


From 98bf8362220af717862b8262b21348774890b7b4 Mon Sep 17 00:00:00 2001
From: Arvid Brodin <arvid.brodin@alten.se>
Date: Fri, 29 Nov 2013 23:38:16 +0100
Subject: net/hsr: Support iproute print_opt ('ip -details ...')

This implements the rtnl_link_ops fill_info routine for HSR.

Signed-off-by: Arvid Brodin <arvid.brodin@alten.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 include/uapi/linux/if_link.h |  4 +++-
 net/hsr/hsr_netlink.c        | 28 ++++++++++++++++++++++++++++
 2 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/include/uapi/linux/if_link.h b/include/uapi/linux/if_link.h
index b78566f59aba..6db460121f84 100644
--- a/include/uapi/linux/if_link.h
+++ b/include/uapi/linux/if_link.h
@@ -488,7 +488,9 @@ enum {
 	IFLA_HSR_UNSPEC,
 	IFLA_HSR_SLAVE1,
 	IFLA_HSR_SLAVE2,
-	IFLA_HSR_MULTICAST_SPEC,
+	IFLA_HSR_MULTICAST_SPEC,	/* Last byte of supervision addr */
+	IFLA_HSR_SUPERVISION_ADDR,	/* Supervision frame multicast addr */
+	IFLA_HSR_SEQ_NR,
 	__IFLA_HSR_MAX,
 };
 
diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c
index 5325af85eea6..01a5261ac7a5 100644
--- a/net/hsr/hsr_netlink.c
+++ b/net/hsr/hsr_netlink.c
@@ -23,6 +23,8 @@ static const struct nla_policy hsr_policy[IFLA_HSR_MAX + 1] = {
 	[IFLA_HSR_SLAVE1]		= { .type = NLA_U32 },
 	[IFLA_HSR_SLAVE2]		= { .type = NLA_U32 },
 	[IFLA_HSR_MULTICAST_SPEC]	= { .type = NLA_U8 },
+	[IFLA_HSR_SUPERVISION_ADDR]	= { .type = NLA_BINARY, .len = ETH_ALEN },
+	[IFLA_HSR_SEQ_NR]		= { .type = NLA_U16 },
 };
 
 
@@ -59,6 +61,31 @@ static int hsr_newlink(struct net *src_net, struct net_device *dev,
 	return hsr_dev_finalize(dev, link, multicast_spec);
 }
 
+static int hsr_fill_info(struct sk_buff *skb, const struct net_device *dev)
+{
+	struct hsr_priv *hsr_priv;
+
+	hsr_priv = netdev_priv(dev);
+
+	if (hsr_priv->slave[0])
+		if (nla_put_u32(skb, IFLA_HSR_SLAVE1, hsr_priv->slave[0]->ifindex))
+			goto nla_put_failure;
+
+	if (hsr_priv->slave[1])
+		if (nla_put_u32(skb, IFLA_HSR_SLAVE2, hsr_priv->slave[1]->ifindex))
+			goto nla_put_failure;
+
+	if (nla_put(skb, IFLA_HSR_SUPERVISION_ADDR, ETH_ALEN,
+		    hsr_priv->sup_multicast_addr) ||
+	    nla_put_u16(skb, IFLA_HSR_SEQ_NR, hsr_priv->sequence_nr))
+		goto nla_put_failure;
+
+	return 0;
+
+nla_put_failure:
+	return -EMSGSIZE;
+}
+
 static struct rtnl_link_ops hsr_link_ops __read_mostly = {
 	.kind		= "hsr",
 	.maxtype	= IFLA_HSR_MAX,
@@ -66,6 +93,7 @@ static struct rtnl_link_ops hsr_link_ops __read_mostly = {
 	.priv_size	= sizeof(struct hsr_priv),
 	.setup		= hsr_dev_setup,
 	.newlink	= hsr_newlink,
+	.fill_info	= hsr_fill_info,
 };
 
 
-- 
cgit 


From 7c2781fa92f5b9ca3188817a56a2ced0400355f3 Mon Sep 17 00:00:00 2001
From: stephen hemminger <stephen@networkplumber.org>
Date: Fri, 29 Nov 2013 11:02:43 -0800
Subject: netem: missing break in ge loss generator

There is a missing break statement in the Gilbert Elliot loss model
generator which makes state machine behave incorrectly.

Reported-by: Martin Burri <martin.burri@ch.abb.com
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sched/sch_netem.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 75c94e59a3bd..6e91323f3dac 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -268,6 +268,7 @@ static bool loss_gilb_ell(struct netem_sched_data *q)
 			clg->state = 2;
 		if (net_random() < clg->a4)
 			return true;
+		break;
 	case 2:
 		if (net_random() < clg->a2)
 			clg->state = 1;
-- 
cgit 


From ab6c27be8178a4682446faa5aa017b948997937f Mon Sep 17 00:00:00 2001
From: stephen hemminger <stephen@networkplumber.org>
Date: Fri, 29 Nov 2013 11:03:35 -0800
Subject: netem: fix loss 4 state model

Patch from developers of the alternative loss models, downloaded from:
   http://netgroup.uniroma2.it/twiki/bin/view.cgi/Main/NetemCLG

 "In the case 1 of the switch statement in the if conditions we
   need to add clg->a4 to clg->a1, according to the model."

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sched/sch_netem.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 6e91323f3dac..9685624f7bc7 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -215,10 +215,10 @@ static bool loss_4state(struct netem_sched_data *q)
 		if (rnd < clg->a4) {
 			clg->state = 4;
 			return true;
-		} else if (clg->a4 < rnd && rnd < clg->a1) {
+		} else if (clg->a4 < rnd && rnd < clg->a1 + clg->a4) {
 			clg->state = 3;
 			return true;
-		} else if (clg->a1 < rnd)
+		} else if (clg->a1 + clg->a4 < rnd)
 			clg->state = 1;
 
 		break;
-- 
cgit 


From eff7979f00b2c546f36f6829f4072c8db54763a9 Mon Sep 17 00:00:00 2001
From: stephen hemminger <stephen@networkplumber.org>
Date: Fri, 29 Nov 2013 11:04:26 -0800
Subject: netem: fix gemodel loss generator

Patch from developers of the alternative loss models, downloaded from:
   http://netgroup.uniroma2.it/twiki/bin/view.cgi/Main/NetemCLG

 "in case 2, of the switch we change the direction of the inequality to
  net_random()>clg->a3, because clg->a3 is h in the GE model and when h
  is 0 all packets will be lost."

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/sched/sch_netem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c
index 9685624f7bc7..bccd52b36e97 100644
--- a/net/sched/sch_netem.c
+++ b/net/sched/sch_netem.c
@@ -272,7 +272,7 @@ static bool loss_gilb_ell(struct netem_sched_data *q)
 	case 2:
 		if (net_random() < clg->a2)
 			clg->state = 1;
-		if (clg->a3 > net_random())
+		if (net_random() > clg->a3)
 			return true;
 	}
 
-- 
cgit 


From 0576da2c08e3d332f1b0653030d28ab804585ab6 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Wed, 20 Nov 2013 23:07:42 +0100
Subject: parisc: fix mmap(MAP_FIXED|MAP_SHARED) to already mmapped address

locale-gen on Debian showed a strange problem on parisc:
mmap2(NULL, 536870912, PROT_NONE, MAP_SHARED, 3, 0) = 0x42a54000
mmap2(0x42a54000, 103860, PROT_READ|PROT_WRITE, MAP_SHARED|MAP_FIXED, 3, 0) = -1 EINVAL (Invalid argument)

Basically it was just trying to re-mmap() a file at the same address
which it was given by a previous mmap() call. But this remapping failed
with EINVAL.

The problem is, that when MAP_FIXED and MAP_SHARED flags were used, we didn't
included the mapping-based offset when we verified the alignment of the given
fixed address against the offset which we calculated it in the previous call.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org> # 3.10+
---
 arch/parisc/kernel/sys_parisc.c | 25 +++++++++++++++----------
 1 file changed, 15 insertions(+), 10 deletions(-)

diff --git a/arch/parisc/kernel/sys_parisc.c b/arch/parisc/kernel/sys_parisc.c
index 5dfd248e3f1a..0d3a9d4927b5 100644
--- a/arch/parisc/kernel/sys_parisc.c
+++ b/arch/parisc/kernel/sys_parisc.c
@@ -61,8 +61,15 @@ static int get_offset(struct address_space *mapping)
 	return (unsigned long) mapping >> 8;
 }
 
-static unsigned long get_shared_area(struct address_space *mapping,
-		unsigned long addr, unsigned long len, unsigned long pgoff)
+static unsigned long shared_align_offset(struct file *filp, unsigned long pgoff)
+{
+	struct address_space *mapping = filp ? filp->f_mapping : NULL;
+
+	return (get_offset(mapping) + pgoff) << PAGE_SHIFT;
+}
+
+static unsigned long get_shared_area(struct file *filp, unsigned long addr,
+		unsigned long len, unsigned long pgoff)
 {
 	struct vm_unmapped_area_info info;
 
@@ -71,7 +78,7 @@ static unsigned long get_shared_area(struct address_space *mapping,
 	info.low_limit = PAGE_ALIGN(addr);
 	info.high_limit = TASK_SIZE;
 	info.align_mask = PAGE_MASK & (SHMLBA - 1);
-	info.align_offset = (get_offset(mapping) + pgoff) << PAGE_SHIFT;
+	info.align_offset = shared_align_offset(filp, pgoff);
 	return vm_unmapped_area(&info);
 }
 
@@ -82,20 +89,18 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr,
 		return -ENOMEM;
 	if (flags & MAP_FIXED) {
 		if ((flags & MAP_SHARED) &&
-		    (addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))
+		    (addr - shared_align_offset(filp, pgoff)) & (SHMLBA - 1))
 			return -EINVAL;
 		return addr;
 	}
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
 
-	if (filp) {
-		addr = get_shared_area(filp->f_mapping, addr, len, pgoff);
-	} else if(flags & MAP_SHARED) {
-		addr = get_shared_area(NULL, addr, len, pgoff);
-	} else {
+	if (filp || (flags & MAP_SHARED))
+		addr = get_shared_area(filp, addr, len, pgoff);
+	else
 		addr = get_unshared_area(addr, len);
-	}
+
 	return addr;
 }
 
-- 
cgit 


From 8f96bdfd6f545b0a999cf97625b5bf8a23014a2d Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Sat, 23 Nov 2013 00:25:43 +0100
Subject: parisc: add some more machine names to hardware database

Sadly the correct names for machines which end with a question-mark aren't
known, so let's give it a best-guessed-name.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/kernel/hardware.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/arch/parisc/kernel/hardware.c b/arch/parisc/kernel/hardware.c
index 06cb3992907e..608716f8496b 100644
--- a/arch/parisc/kernel/hardware.c
+++ b/arch/parisc/kernel/hardware.c
@@ -36,6 +36,9 @@
  *	HP PARISC Hardware Database
  *	Access to this database is only possible during bootup
  *	so don't reference this table after starting the init process
+ *
+ *	NOTE: Product names which are listed here and ends with a '?'
+ *	are guessed. If you know the correct name, please let us know.
  */
  
 static struct hp_hardware hp_hardware_list[] = {
@@ -222,7 +225,7 @@ static struct hp_hardware hp_hardware_list[] = {
 	{HPHW_NPROC,0x5DD,0x4,0x81,"Duet W2"},
 	{HPHW_NPROC,0x5DE,0x4,0x81,"Piccolo W+"},
 	{HPHW_NPROC,0x5DF,0x4,0x81,"Cantata W2"},
-	{HPHW_NPROC,0x5DF,0x0,0x00,"Marcato W+? (rp5470)"},
+	{HPHW_NPROC,0x5DF,0x0,0x00,"Marcato W+ (rp5470)?"},
 	{HPHW_NPROC,0x5E0,0x4,0x91,"Cantata DC- W2"},
 	{HPHW_NPROC,0x5E1,0x4,0x91,"Crescendo DC- W2"},
 	{HPHW_NPROC,0x5E2,0x4,0x91,"Crescendo 650 W2"},
@@ -276,9 +279,11 @@ static struct hp_hardware hp_hardware_list[] = {
 	{HPHW_NPROC,0x888,0x4,0x91,"Storm Peak Fast DC-"},
 	{HPHW_NPROC,0x889,0x4,0x91,"Storm Peak Fast"},
 	{HPHW_NPROC,0x88A,0x4,0x91,"Crestone Peak Slow"},
+	{HPHW_NPROC,0x88B,0x4,0x91,"Crestone Peak Fast?"},
 	{HPHW_NPROC,0x88C,0x4,0x91,"Orca Mako+"},
 	{HPHW_NPROC,0x88D,0x4,0x91,"Rainier/Medel Mako+ Slow"},
 	{HPHW_NPROC,0x88E,0x4,0x91,"Rainier/Medel Mako+ Fast"},
+	{HPHW_NPROC,0x892,0x4,0x91,"Mt. Hamilton Slow Mako+?"},
 	{HPHW_NPROC,0x894,0x4,0x91,"Mt. Hamilton Fast Mako+"},
 	{HPHW_NPROC,0x895,0x4,0x91,"Storm Peak Slow Mako+"},
 	{HPHW_NPROC,0x896,0x4,0x91,"Storm Peak Fast Mako+"},
-- 
cgit 


From 6c3215cd5d31584c8ae77a99255c72dba2565918 Mon Sep 17 00:00:00 2001
From: Chen Gang <gang.chen@asianux.com>
Date: Thu, 31 Oct 2013 15:37:46 +0800
Subject: parisc: remove empty SERIAL_PORT_DFNS in serial.h

If architectures don't support SERIAL_PORT_DFNS, they need not define it
to "nothing", the related drivers need do it by themselves (e.g.  8250
serial driver).

Signed-off-by: Chen Gang <gang.chen@asianux.com>
Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/include/asm/serial.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/arch/parisc/include/asm/serial.h b/arch/parisc/include/asm/serial.h
index d7e3cc60dbc3..77e9b67c87ee 100644
--- a/arch/parisc/include/asm/serial.h
+++ b/arch/parisc/include/asm/serial.h
@@ -6,5 +6,3 @@
  * This is used for 16550-compatible UARTs
  */
 #define BASE_BAUD ( 1843200 / 16 )
-
-#define SERIAL_PORT_DFNS
-- 
cgit 


From c790b41bac83512dc67da89b582daa6f4e1fab07 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Sat, 30 Nov 2013 21:23:20 +0100
Subject: parisc: use kernel_text_address() in unwind functions

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/kernel/unwind.c | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c
index 76ed62ed785b..ddd988b267a9 100644
--- a/arch/parisc/kernel/unwind.c
+++ b/arch/parisc/kernel/unwind.c
@@ -168,7 +168,7 @@ void unwind_table_remove(struct unwind_table *table)
 }
 
 /* Called from setup_arch to import the kernel unwind info */
-int unwind_init(void)
+int __init unwind_init(void)
 {
 	long start, stop;
 	register unsigned long gp __asm__ ("r27");
@@ -233,7 +233,6 @@ static void unwind_frame_regs(struct unwind_frame_info *info)
 	e = find_unwind_entry(info->ip);
 	if (e == NULL) {
 		unsigned long sp;
-		extern char _stext[], _etext[];
 
 		dbg("Cannot find unwind entry for 0x%lx; forced unwinding\n", info->ip);
 
@@ -281,8 +280,7 @@ static void unwind_frame_regs(struct unwind_frame_info *info)
 				break;
 			info->prev_ip = tmp;
 			sp = info->prev_sp;
-		} while (info->prev_ip < (unsigned long)_stext ||
-			 info->prev_ip > (unsigned long)_etext);
+		} while (!kernel_text_address(info->prev_ip));
 
 		info->rp = 0;
 
@@ -435,9 +433,8 @@ unsigned long return_address(unsigned int level)
 	do {
 		if (unwind_once(&info) < 0 || info.ip == 0)
 			return 0;
-		if (!__kernel_text_address(info.ip)) {
+		if (!kernel_text_address(info.ip))
 			return 0;
-		}
 	} while (info.ip && level--);
 
 	return info.ip;
-- 
cgit 


From 161bd3bf60ee2c5765455ad3e3da967d03449f4a Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Sat, 30 Nov 2013 22:07:51 +0100
Subject: parisc: fix kernel memory layout in vmlinux.ld.S

When building a 64bit kernel sometimes functions in the .init section were not
able to reach the standard kernel function. Main reason for this problem is,
that the linkage tables (.plt, .opd, .dlt) tend to become pretty huge and thus
the distance gets too big for short calls.

One option to avoid this is to use the -mlong-calls compiler option, but this
increases the binary size and introduces a performance penalty.

Instead, with this patch we just lay out the binary differently.  Init code is
stored first, followed by text, R/O and finally R/W data. This means, that init
and text code is now much closer to each other, which is sufficient to reach
each other by short calls.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/kernel/head.S        |   6 +-
 arch/parisc/kernel/vmlinux.lds.S | 138 +++++++++++++++++----------------------
 arch/parisc/mm/init.c            |  19 +++++-
 3 files changed, 78 insertions(+), 85 deletions(-)

diff --git a/arch/parisc/kernel/head.S b/arch/parisc/kernel/head.S
index d2d58258aea6..d4dc588c0dc1 100644
--- a/arch/parisc/kernel/head.S
+++ b/arch/parisc/kernel/head.S
@@ -41,9 +41,7 @@ END(boot_args)
         .import fault_vector_11,code    /* IVA parisc 1.1 32 bit */
 	.import	$global$		/* forward declaration */
 #endif /*!CONFIG_64BIT*/
-	.export _stext,data		/* Kernel want it this way! */
-_stext:
-ENTRY(stext)
+ENTRY(parisc_kernel_start)
 	.proc
 	.callinfo
 
@@ -347,7 +345,7 @@ smp_slave_stext:
 	.procend
 #endif /* CONFIG_SMP */
 
-ENDPROC(stext)
+ENDPROC(parisc_kernel_start)
 
 #ifndef CONFIG_64BIT
 	.section .data..read_mostly
diff --git a/arch/parisc/kernel/vmlinux.lds.S b/arch/parisc/kernel/vmlinux.lds.S
index 4bb095a2f6fc..0dacc5ca555a 100644
--- a/arch/parisc/kernel/vmlinux.lds.S
+++ b/arch/parisc/kernel/vmlinux.lds.S
@@ -6,24 +6,19 @@
  *    Copyright (C) 2000 Michael Ang <mang with subcarrier.org>
  *    Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org>
  *    Copyright (C) 2003 James Bottomley <jejb with parisc-linux.org>
- *    Copyright (C) 2006 Helge Deller <deller@gmx.de>
- *
- *
- *    This program is free software; you can redistribute it and/or modify
- *    it under the terms of the GNU General Public License as published by
- *    the Free Software Foundation; either version 2 of the License, or
- *    (at your option) any later version.
- *
- *    This program is distributed in the hope that it will be useful,
- *    but WITHOUT ANY WARRANTY; without even the implied warranty of
- *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *    GNU General Public License for more details.
- *
- *    You should have received a copy of the GNU General Public License
- *    along with this program; if not, write to the Free Software
- *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *    Copyright (C) 2006-2013 Helge Deller <deller@gmx.de>
+ */
+
+/*
+ * Put page table entries (swapper_pg_dir) as the first thing in .bss. This
+ * will ensure that it has .bss alignment (PAGE_SIZE).
  */
+#define BSS_FIRST_SECTIONS	*(.data..vm0.pmd) \
+				*(.data..vm0.pgd) \
+				*(.data..vm0.pte)
+
 #include <asm-generic/vmlinux.lds.h>
+
 /* needed for the processor specific cache alignment size */	
 #include <asm/cache.h>
 #include <asm/page.h>
@@ -39,7 +34,7 @@ OUTPUT_FORMAT("elf64-hppa-linux")
 OUTPUT_ARCH(hppa:hppa2.0w)
 #endif
 
-ENTRY(_stext)
+ENTRY(parisc_kernel_start)
 #ifndef CONFIG_64BIT
 jiffies = jiffies_64 + 4;
 #else
@@ -49,11 +44,29 @@ SECTIONS
 {
 	. = KERNEL_BINARY_TEXT_START;
 
+	__init_begin = .;
+	HEAD_TEXT_SECTION
+	INIT_TEXT_SECTION(8)
+
+	. = ALIGN(PAGE_SIZE);
+	INIT_DATA_SECTION(PAGE_SIZE)
+	/* we have to discard exit text and such at runtime, not link time */
+	.exit.text :
+	{
+		EXIT_TEXT
+	}
+	.exit.data :
+	{
+		EXIT_DATA
+	}
+	PERCPU_SECTION(8)
+	. = ALIGN(PAGE_SIZE);
+	__init_end = .;
+	/* freed after init ends here */
+
 	_text = .;		/* Text and read-only data */
-	.head ALIGN(16) : {
-		HEAD_TEXT
-	} = 0
-	.text ALIGN(16) : {
+	_stext = .;
+	.text ALIGN(PAGE_SIZE) : {
 		TEXT_TEXT
 		SCHED_TEXT
 		LOCK_TEXT
@@ -68,21 +81,28 @@ SECTIONS
 		*(.lock.text)		/* out-of-line lock text */
 		*(.gnu.warning)
 	}
-	/* End of text section */
+	. = ALIGN(PAGE_SIZE);
 	_etext = .;
+	/* End of text section */
 
 	/* Start of data section */
 	_sdata = .;
 
-	RODATA
+	RO_DATA_SECTION(8)
 
-	/* writeable */
-	/* Make sure this is page aligned so
-	 * that we can properly leave these
-	 * as writable
-	 */
-	. = ALIGN(PAGE_SIZE);
-	data_start = .;
+#ifdef CONFIG_64BIT
+	. = ALIGN(16);
+	/* Linkage tables */
+	.opd : {
+		*(.opd)
+	} PROVIDE (__gp = .);
+	.plt : {
+		*(.plt)
+	}
+	.dlt : {
+		*(.dlt)
+	}
+#endif
 
 	/* unwind info */
 	.PARISC.unwind : {
@@ -91,7 +111,15 @@ SECTIONS
 		__stop___unwind = .;
 	}
 
-	EXCEPTION_TABLE(16)
+	/* writeable */
+	/* Make sure this is page aligned so
+	 * that we can properly leave these
+	 * as writable
+	 */
+	. = ALIGN(PAGE_SIZE);
+	data_start = .;
+
+	EXCEPTION_TABLE(8)
 	NOTES
 
 	/* Data */
@@ -107,54 +135,8 @@ SECTIONS
 	_edata = .;
 
 	/* BSS */
-	__bss_start = .;
-	/* page table entries need to be PAGE_SIZE aligned */
-	. = ALIGN(PAGE_SIZE);
-	.data..vmpages : {
-		*(.data..vm0.pmd)
-		*(.data..vm0.pgd)
-		*(.data..vm0.pte)
-	}
-	.bss : {
-		*(.bss)
-		*(COMMON)
-	}
-	__bss_stop = .;
-
-#ifdef CONFIG_64BIT
-	. = ALIGN(16);
-	/* Linkage tables */
-	.opd : {
-		*(.opd)
-	} PROVIDE (__gp = .); 
-	.plt : {
-		*(.plt)
-	} 
-	.dlt : {
-		*(.dlt)
-	}
-#endif
+	BSS_SECTION(PAGE_SIZE, PAGE_SIZE, 8)
 
-	/* reserve space for interrupt stack by aligning __init* to 16k */
-	. = ALIGN(16384);
-	__init_begin = .;
-	INIT_TEXT_SECTION(16384)
-	. = ALIGN(PAGE_SIZE);
-	INIT_DATA_SECTION(16)
-	/* we have to discard exit text and such at runtime, not link time */
-	.exit.text :
-	{
-		EXIT_TEXT
-	}
-	.exit.data :
-	{
-		EXIT_DATA
-	}
-
-	PERCPU_SECTION(L1_CACHE_BYTES)
-	. = ALIGN(PAGE_SIZE);
-	__init_end = .;
-	/* freed after init ends here */
 	_end = . ;
 
 	STABS_DEBUG
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index b0f96c0e6316..96f8168cf4ec 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -32,6 +32,7 @@
 #include <asm/sections.h>
 
 extern int  data_start;
+extern void parisc_kernel_start(void);	/* Kernel entry point in head.S */
 
 #if PT_NLEVELS == 3
 /* NOTE: This layout exactly conforms to the hybrid L2/L3 page table layout
@@ -324,8 +325,9 @@ static void __init setup_bootmem(void)
 	reserve_bootmem_node(NODE_DATA(0), 0UL,
 			(unsigned long)(PAGE0->mem_free +
 				PDC_CONSOLE_IO_IODC_SIZE), BOOTMEM_DEFAULT);
-	reserve_bootmem_node(NODE_DATA(0), __pa((unsigned long)_text),
-			(unsigned long)(_end - _text), BOOTMEM_DEFAULT);
+	reserve_bootmem_node(NODE_DATA(0), __pa(KERNEL_BINARY_TEXT_START),
+			(unsigned long)(_end - KERNEL_BINARY_TEXT_START),
+			BOOTMEM_DEFAULT);
 	reserve_bootmem_node(NODE_DATA(0), (bootmap_start_pfn << PAGE_SHIFT),
 			((bootmap_pfn - bootmap_start_pfn) << PAGE_SHIFT),
 			BOOTMEM_DEFAULT);
@@ -378,6 +380,17 @@ static void __init setup_bootmem(void)
 	request_resource(&sysram_resources[0], &pdcdata_resource);
 }
 
+static int __init parisc_text_address(unsigned long vaddr)
+{
+	static unsigned long head_ptr __initdata;
+
+	if (!head_ptr)
+		head_ptr = PAGE_MASK & (unsigned long)
+			dereference_function_descriptor(&parisc_kernel_start);
+
+	return core_kernel_text(vaddr) || vaddr == head_ptr;
+}
+
 static void __init map_pages(unsigned long start_vaddr,
 			     unsigned long start_paddr, unsigned long size,
 			     pgprot_t pgprot, int force)
@@ -466,7 +479,7 @@ static void __init map_pages(unsigned long start_vaddr,
 				 */
 				if (force)
 					pte =  __mk_pte(address, pgprot);
-				else if (core_kernel_text(vaddr) &&
+				else if (parisc_text_address(vaddr) &&
 					 address != fv_addr)
 					pte = __mk_pte(address, PAGE_KERNEL_EXEC);
 				else
-- 
cgit 


From 99e872ae1eacb560152c0123cf1cef571569e681 Mon Sep 17 00:00:00 2001
From: Thomas Huth <thuth@linux.vnet.ibm.com>
Date: Fri, 29 Nov 2013 10:02:19 +0100
Subject: virtio_net: Fixed a trivial typo (fitler --> filter)

"MAC filter" sounds more reasonable than "MAC fitler".

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/virtio_net.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 7bab4de658a9..acda66169973 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -1084,7 +1084,7 @@ static void virtnet_set_rx_mode(struct net_device *dev)
 	if (!virtnet_send_command(vi, VIRTIO_NET_CTRL_MAC,
 				  VIRTIO_NET_CTRL_MAC_TABLE_SET,
 				  sg, NULL))
-		dev_warn(&dev->dev, "Failed to set MAC fitler table.\n");
+		dev_warn(&dev->dev, "Failed to set MAC filter table.\n");
 
 	kfree(buf);
 }
-- 
cgit 


From b8d8fccd68c36a19fef9768d06aa150bbc8cdd74 Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Sat, 30 Nov 2013 22:22:08 +0100
Subject: parisc: remove CONFIG_MLONGCALLS=y from defconfigs

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/configs/c8000_defconfig         | 1 -
 arch/parisc/configs/generic-64bit_defconfig | 1 -
 2 files changed, 2 deletions(-)

diff --git a/arch/parisc/configs/c8000_defconfig b/arch/parisc/configs/c8000_defconfig
index e1c8d2015c89..bb81d026b7b3 100644
--- a/arch/parisc/configs/c8000_defconfig
+++ b/arch/parisc/configs/c8000_defconfig
@@ -20,7 +20,6 @@ CONFIG_MODULE_FORCE_UNLOAD=y
 CONFIG_MODVERSIONS=y
 CONFIG_BLK_DEV_INTEGRITY=y
 CONFIG_PA8X00=y
-CONFIG_MLONGCALLS=y
 CONFIG_64BIT=y
 CONFIG_SMP=y
 CONFIG_PREEMPT=y
diff --git a/arch/parisc/configs/generic-64bit_defconfig b/arch/parisc/configs/generic-64bit_defconfig
index 5874cebee077..1413b8d7f5d3 100644
--- a/arch/parisc/configs/generic-64bit_defconfig
+++ b/arch/parisc/configs/generic-64bit_defconfig
@@ -24,7 +24,6 @@ CONFIG_MODVERSIONS=y
 CONFIG_BLK_DEV_INTEGRITY=y
 # CONFIG_IOSCHED_DEADLINE is not set
 CONFIG_PA8X00=y
-CONFIG_MLONGCALLS=y
 CONFIG_64BIT=y
 CONFIG_SMP=y
 # CONFIG_COMPACTION is not set
-- 
cgit 


From 2e311fbabdc23b7eaec77313dc3b9a151a5407b5 Mon Sep 17 00:00:00 2001
From: "Stephen M. Cameron" <scameron@beardog.cce.hp.com>
Date: Mon, 23 Sep 2013 13:33:41 -0500
Subject: [SCSI] hpsa: do not discard scsi status on aborted commands

We inadvertantly discarded the scsi status for aborted commands.
For some commands (e.g. reads from tape drives) these can't be retried,
and if we discarded the scsi status, the scsi mid layer couldn't notice
anything was wrong and the error was not reported.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/hpsa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 2336beff7a48..595a2a711548 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -1289,7 +1289,7 @@ static void complete_scsi_command(struct CommandList *cp)
 					"has check condition: aborted command: "
 					"ASC: 0x%x, ASCQ: 0x%x\n",
 					cp, asc, ascq);
-				cmd->result = DID_SOFT_ERROR << 16;
+				cmd->result |= DID_SOFT_ERROR << 16;
 				break;
 			}
 			/* Must be some other type of check condition */
-- 
cgit 


From 67130c5464f50428aea0b4526a6729d61f9a1d53 Mon Sep 17 00:00:00 2001
From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Fri, 29 Nov 2013 00:54:38 +0000
Subject: ARM: footbridge: fix EBSA285 LEDs

- The LEDs register is write-only: it can't be read-modify-written.
- The LEDs are write-1-for-off not 0.
- The check for the platform was inverted.

Fixes: cf6856d693dd ("ARM: mach-footbridge: retire custom LED code")
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: stable@vger.kernel.org
---
 arch/arm/mach-footbridge/ebsa285.c | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/arch/arm/mach-footbridge/ebsa285.c b/arch/arm/mach-footbridge/ebsa285.c
index b08243500e2e..1a7235fb52ac 100644
--- a/arch/arm/mach-footbridge/ebsa285.c
+++ b/arch/arm/mach-footbridge/ebsa285.c
@@ -30,21 +30,24 @@ static const struct {
 	const char *name;
 	const char *trigger;
 } ebsa285_leds[] = {
-	{ "ebsa285:amber", "heartbeat", },
-	{ "ebsa285:green", "cpu0", },
+	{ "ebsa285:amber", "cpu0", },
+	{ "ebsa285:green", "heartbeat", },
 	{ "ebsa285:red",},
 };
 
+static unsigned char hw_led_state;
+
 static void ebsa285_led_set(struct led_classdev *cdev,
 		enum led_brightness b)
 {
 	struct ebsa285_led *led = container_of(cdev,
 			struct ebsa285_led, cdev);
 
-	if (b != LED_OFF)
-		*XBUS_LEDS |= led->mask;
+	if (b == LED_OFF)
+		hw_led_state |= led->mask;
 	else
-		*XBUS_LEDS &= ~led->mask;
+		hw_led_state &= ~led->mask;
+	*XBUS_LEDS = hw_led_state;
 }
 
 static enum led_brightness ebsa285_led_get(struct led_classdev *cdev)
@@ -52,18 +55,19 @@ static enum led_brightness ebsa285_led_get(struct led_classdev *cdev)
 	struct ebsa285_led *led = container_of(cdev,
 			struct ebsa285_led, cdev);
 
-	return (*XBUS_LEDS & led->mask) ? LED_FULL : LED_OFF;
+	return hw_led_state & led->mask ? LED_OFF : LED_FULL;
 }
 
 static int __init ebsa285_leds_init(void)
 {
 	int i;
 
-	if (machine_is_ebsa285())
+	if (!machine_is_ebsa285())
 		return -ENODEV;
 
-	/* 3 LEDS All ON */
-	*XBUS_LEDS |= XBUS_LED_AMBER | XBUS_LED_GREEN | XBUS_LED_RED;
+	/* 3 LEDS all off */
+	hw_led_state = XBUS_LED_AMBER | XBUS_LED_GREEN | XBUS_LED_RED;
+	*XBUS_LEDS = hw_led_state;
 
 	for (i = 0; i < ARRAY_SIZE(ebsa285_leds); i++) {
 		struct ebsa285_led *led;
-- 
cgit 


From 50913336ef3c9270b5e2b44a5d81230d7db42fc5 Mon Sep 17 00:00:00 2001
From: Victor Kamensky <victor.kamensky@linaro.org>
Date: Thu, 21 Nov 2013 07:17:03 +0100
Subject: ARM: 7895/1: signal: fix armv7-m build issue in sigreturn_codes.S
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

After "ARM: signal: sigreturn_codes should be endian neutral to
work in BE8" commit, thumb only platforms, like armv7m, fails to
compile sigreturn_codes.S. The reason is that for such arch
values '.arm' directive and arm opcodes are not allowed.

Fix conditionally enables arm opcodes only if no CONFIG_CPU_THUMBONLY
defined and it uses .org instructions to keep sigreturn_codes
layout.

Suggested-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Tested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/sigreturn_codes.S | 40 ++++++++++++++++++++++++++++++---------
 1 file changed, 31 insertions(+), 9 deletions(-)

diff --git a/arch/arm/kernel/sigreturn_codes.S b/arch/arm/kernel/sigreturn_codes.S
index 3c5d0f2170fd..b84d0cb13682 100644
--- a/arch/arm/kernel/sigreturn_codes.S
+++ b/arch/arm/kernel/sigreturn_codes.S
@@ -30,6 +30,27 @@
  * snippets.
  */
 
+/*
+ * In CPU_THUMBONLY case kernel arm opcodes are not allowed.
+ * Note in this case codes skips those instructions but it uses .org
+ * directive to keep correct layout of sigreturn_codes array.
+ */
+#ifndef CONFIG_CPU_THUMBONLY
+#define ARM_OK(code...)	code
+#else
+#define ARM_OK(code...)
+#endif
+
+	.macro arm_slot n
+	.org	sigreturn_codes + 12 * (\n)
+ARM_OK(	.arm	)
+	.endm
+
+	.macro thumb_slot n
+	.org	sigreturn_codes + 12 * (\n) + 8
+	.thumb
+	.endm
+
 #if __LINUX_ARM_ARCH__ <= 4
 	/*
 	 * Note we manually set minimally required arch that supports
@@ -45,26 +66,27 @@
 	.global sigreturn_codes
 	.type	sigreturn_codes, #object
 
-	.arm
+	.align
 
 sigreturn_codes:
 
 	/* ARM sigreturn syscall code snippet */
-	mov	r7, #(__NR_sigreturn - __NR_SYSCALL_BASE)
-	swi	#(__NR_sigreturn)|(__NR_OABI_SYSCALL_BASE)
+	arm_slot 0
+ARM_OK(	mov	r7, #(__NR_sigreturn - __NR_SYSCALL_BASE)	)
+ARM_OK(	swi	#(__NR_sigreturn)|(__NR_OABI_SYSCALL_BASE)	)
 
 	/* Thumb sigreturn syscall code snippet */
-	.thumb
+	thumb_slot 0
 	movs	r7, #(__NR_sigreturn - __NR_SYSCALL_BASE)
 	swi	#0
 
 	/* ARM sigreturn_rt syscall code snippet */
-	.arm
-	mov	r7, #(__NR_rt_sigreturn - __NR_SYSCALL_BASE)
-	swi	#(__NR_rt_sigreturn)|(__NR_OABI_SYSCALL_BASE)
+	arm_slot 1
+ARM_OK(	mov	r7, #(__NR_rt_sigreturn - __NR_SYSCALL_BASE)	)
+ARM_OK(	swi	#(__NR_rt_sigreturn)|(__NR_OABI_SYSCALL_BASE)	)
 
 	/* Thumb sigreturn_rt syscall code snippet */
-	.thumb
+	thumb_slot 1
 	movs	r7, #(__NR_rt_sigreturn - __NR_SYSCALL_BASE)
 	swi	#0
 
@@ -74,7 +96,7 @@ sigreturn_codes:
 	 * it is thumb case or not, so we need additional
 	 * word after real last entry.
 	 */
-	.arm
+	arm_slot 2
 	.space	4
 
 	.size	sigreturn_codes, . - sigreturn_codes
-- 
cgit 


From e2ccba49085ab5d71b092de2a5176eb9b19cc876 Mon Sep 17 00:00:00 2001
From: Dave Martin <dave.martin@linaro.org>
Date: Mon, 25 Nov 2013 14:54:47 +0100
Subject: ARM: 7897/1: kexec: Use the right ISA for relocate_new_kernel

Copying a function with memcpy() and then trying to execute the
result isn't trivially portable to Thumb.

This patch modifies the kexec soft restart code to copy its
assembler trampoline relocate_new_kernel() using fncpy() instead,
so that relocate_new_kernel can be in the same ISA as the rest of
the kernel without problems.

Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Reported-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Tested-by: Taras Kondratiuk <taras.kondratiuk@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/kernel/machine_kexec.c   | 17 ++++++++++-------
 arch/arm/kernel/relocate_kernel.S |  8 ++++++--
 2 files changed, 16 insertions(+), 9 deletions(-)

diff --git a/arch/arm/kernel/machine_kexec.c b/arch/arm/kernel/machine_kexec.c
index 57221e349a7c..f0d180d8b29f 100644
--- a/arch/arm/kernel/machine_kexec.c
+++ b/arch/arm/kernel/machine_kexec.c
@@ -14,11 +14,12 @@
 #include <asm/pgalloc.h>
 #include <asm/mmu_context.h>
 #include <asm/cacheflush.h>
+#include <asm/fncpy.h>
 #include <asm/mach-types.h>
 #include <asm/smp_plat.h>
 #include <asm/system_misc.h>
 
-extern const unsigned char relocate_new_kernel[];
+extern void relocate_new_kernel(void);
 extern const unsigned int relocate_new_kernel_size;
 
 extern unsigned long kexec_start_address;
@@ -142,6 +143,8 @@ void machine_kexec(struct kimage *image)
 {
 	unsigned long page_list;
 	unsigned long reboot_code_buffer_phys;
+	unsigned long reboot_entry = (unsigned long)relocate_new_kernel;
+	unsigned long reboot_entry_phys;
 	void *reboot_code_buffer;
 
 	/*
@@ -168,16 +171,16 @@ void machine_kexec(struct kimage *image)
 
 
 	/* copy our kernel relocation code to the control code page */
-	memcpy(reboot_code_buffer,
-	       relocate_new_kernel, relocate_new_kernel_size);
+	reboot_entry = fncpy(reboot_code_buffer,
+			     reboot_entry,
+			     relocate_new_kernel_size);
+	reboot_entry_phys = (unsigned long)reboot_entry +
+		(reboot_code_buffer_phys - (unsigned long)reboot_code_buffer);
 
-
-	flush_icache_range((unsigned long) reboot_code_buffer,
-			   (unsigned long) reboot_code_buffer + KEXEC_CONTROL_PAGE_SIZE);
 	printk(KERN_INFO "Bye!\n");
 
 	if (kexec_reinit)
 		kexec_reinit();
 
-	soft_restart(reboot_code_buffer_phys);
+	soft_restart(reboot_entry_phys);
 }
diff --git a/arch/arm/kernel/relocate_kernel.S b/arch/arm/kernel/relocate_kernel.S
index d0cdedf4864d..95858966d84e 100644
--- a/arch/arm/kernel/relocate_kernel.S
+++ b/arch/arm/kernel/relocate_kernel.S
@@ -2,10 +2,12 @@
  * relocate_kernel.S - put the kernel image in place to boot
  */
 
+#include <linux/linkage.h>
 #include <asm/kexec.h>
 
-	.globl relocate_new_kernel
-relocate_new_kernel:
+	.align	3	/* not needed for this code, but keeps fncpy() happy */
+
+ENTRY(relocate_new_kernel)
 
 	ldr	r0,kexec_indirection_page
 	ldr	r1,kexec_start_address
@@ -79,6 +81,8 @@ kexec_mach_type:
 kexec_boot_atags:
 	.long	0x0
 
+ENDPROC(relocate_new_kernel)
+
 relocate_new_kernel_end:
 
 	.globl relocate_new_kernel_size
-- 
cgit 


From 11d4bb1bd067f9d01d18f620ccfad516dc579593 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <festevam@gmail.com>
Date: Sat, 30 Nov 2013 15:24:42 +0100
Subject: ARM: 7907/1: lib: delay-loop: Add align directive to fix BogoMIPS
 calculation

Currently mx53 (CortexA8) running at 1GHz reports:
Calibrating delay loop... 663.55 BogoMIPS (lpj=3317760)

Tom Evans verified that alignments of 0x0 and 0x8 run the two instructions of __loop_delay in one clock cycle (1 clock/loop), while alignments of 0x4 and 0xc take 3 clocks to run the loop twice. (1.5 clock/loop)

The original object code looks like this:

00000010 <__loop_const_udelay>:
  10:	e3e01000 	mvn	r1, #0
  14:	e51f201c 	ldr	r2, [pc, #-28]	; 0 <__loop_udelay-0x8>
  18:	e5922000 	ldr	r2, [r2]
  1c:	e0800921 	add	r0, r0, r1, lsr #18
  20:	e1a00720 	lsr	r0, r0, #14
  24:	e0822b21 	add	r2, r2, r1, lsr #22
  28:	e1a02522 	lsr	r2, r2, #10
  2c:	e0000092 	mul	r0, r2, r0
  30:	e0800d21 	add	r0, r0, r1, lsr #26
  34:	e1b00320 	lsrs	r0, r0, #6
  38:	01a0f00e 	moveq	pc, lr

0000003c <__loop_delay>:
  3c:	e2500001 	subs	r0, r0, #1
  40:	8afffffe 	bhi	3c <__loop_delay>
  44:	e1a0f00e 	mov	pc, lr

After adding the 'align 3' directive to __loop_delay (align to 8 bytes):

00000010 <__loop_const_udelay>:
  10:	e3e01000 	mvn	r1, #0
  14:	e51f201c 	ldr	r2, [pc, #-28]	; 0 <__loop_udelay-0x8>
  18:	e5922000 	ldr	r2, [r2]
  1c:	e0800921 	add	r0, r0, r1, lsr #18
  20:	e1a00720 	lsr	r0, r0, #14
  24:	e0822b21 	add	r2, r2, r1, lsr #22
  28:	e1a02522 	lsr	r2, r2, #10
  2c:	e0000092 	mul	r0, r2, r0
  30:	e0800d21 	add	r0, r0, r1, lsr #26
  34:	e1b00320 	lsrs	r0, r0, #6
  38:	01a0f00e 	moveq	pc, lr
  3c:	e320f000 	nop	{0}

00000040 <__loop_delay>:
  40:	e2500001 	subs	r0, r0, #1
  44:	8afffffe 	bhi	40 <__loop_delay>
  48:	e1a0f00e 	mov	pc, lr
  4c:	e320f000 	nop	{0}

, which now reports:
Calibrating delay loop... 996.14 BogoMIPS (lpj=4980736)

Some more test results:

On mx31 (ARM1136) running at 532 MHz, before the patch:
Calibrating delay loop... 351.43 BogoMIPS (lpj=1757184)

On mx31 (ARM1136) running at 532 MHz after the patch:
Calibrating delay loop... 528.79 BogoMIPS (lpj=2643968)

Also tested on mx6 (CortexA9) and on mx27 (ARM926), which shows the same
BogoMIPS value before and after this patch.

Reported-by: Tom Evans <tom_usenet@optusnet.com.au>
Suggested-by: Tom Evans <tom_usenet@optusnet.com.au>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
 arch/arm/lib/delay-loop.S | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/lib/delay-loop.S b/arch/arm/lib/delay-loop.S
index 36b668d8e121..bc1033b897b4 100644
--- a/arch/arm/lib/delay-loop.S
+++ b/arch/arm/lib/delay-loop.S
@@ -40,6 +40,7 @@ ENTRY(__loop_const_udelay)			@ 0 <= r0 <= 0x7fffff06
 /*
  * loops = r0 * HZ * loops_per_jiffy / 1000000
  */
+		.align 3
 
 @ Delay routine
 ENTRY(__loop_delay)
-- 
cgit 


From 88bf6d62db4393fa03a58bada9d746312d5b496f Mon Sep 17 00:00:00 2001
From: "Stephen M. Cameron" <scameron@beardog.cce.hp.com>
Date: Fri, 1 Nov 2013 11:02:25 -0500
Subject: [SCSI] hpsa: return 0 from driver probe function on success, not 1

A return value of 1 is interpreted as an error.  See pci_driver.
in local_pci_probe().  If you're wondering how this ever could
have worked, it's because it used to be the case that only return
values less than zero were interpreted as failure.  But even in
the current kernel if the driver registers its various entry
points with the kernel, and then returns a value which is
interpreted as failure, those registrations aren't undone, so
the driver still mostly works.  However, the driver's remove
function wouldn't be called on rmmod, and pci power management
functions wouldn't work.  In the case of Smart Array, since it
has a battery backed cache (or else no cache) even if the driver
is not shut down properly as long as there is no outstanding
i/o, nothing too bad happens, which is why it took so long to
notice.

Requesting backport to stable because the change to pci-driver.c
which requires driver probe functions to return 0 occurred between
2.6.35 and 2.6.36 (the pci power management breakage) and again
between 3.7 and 3.8 (pci_dev->driver getting set to NULL in
local_pci_probe() preventing driver remove function from being
called on rmmod.)

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/hpsa.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 595a2a711548..20a5e6ecf945 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -4926,7 +4926,7 @@ reinit_after_soft_reset:
 	hpsa_hba_inquiry(h);
 	hpsa_register_scsi(h);	/* hook ourselves into SCSI subsystem */
 	start_controller_lockup_detector(h);
-	return 1;
+	return 0;
 
 clean4:
 	hpsa_free_sg_chain_blocks(h);
-- 
cgit 


From 8ed12fcc194d93c6a17714120a7027ee4d76a881 Mon Sep 17 00:00:00 2001
From: Richard Weinberger <richard@nod.at>
Date: Thu, 21 Nov 2013 09:27:37 +0100
Subject: um: Rename print_stack_trace to do_stack_trace

We cannot use print_stack_trace because the name conflicts
with linux/stacktrace.h.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
---
 arch/um/kernel/sysrq.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/um/kernel/sysrq.c b/arch/um/kernel/sysrq.c
index 4d6fdf68edf3..799d7e413bf5 100644
--- a/arch/um/kernel/sysrq.c
+++ b/arch/um/kernel/sysrq.c
@@ -19,7 +19,7 @@ struct stack_frame {
 	unsigned long return_address;
 };
 
-static void print_stack_trace(unsigned long *sp, unsigned long bp)
+static void do_stack_trace(unsigned long *sp, unsigned long bp)
 {
 	int reliable;
 	unsigned long addr;
@@ -94,5 +94,5 @@ void show_stack(struct task_struct *task, unsigned long *stack)
 	}
 	printk(KERN_CONT "\n");
 
-	print_stack_trace(sp, bp);
+	do_stack_trace(sp, bp);
 }
-- 
cgit 


From fff6540cbcb56a6ae92d4fd4b0864c8d13a8f932 Mon Sep 17 00:00:00 2001
From: Richard Weinberger <richard@nod.at>
Date: Fri, 29 Nov 2013 15:39:41 +0100
Subject: um: Build always with -mcmodel=large on 64bit

On UML SUBARCH can be x86, x86_64 and i386 and if it is x86
we use uname -m to select a defconfig.
Therefore we can no longer use -mcmodel=large only if SUBARCH
is x86_64.

Reported-and-tested-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
---
 arch/um/Makefile | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/arch/um/Makefile b/arch/um/Makefile
index 48d92bbe62e9..36e658a4291c 100644
--- a/arch/um/Makefile
+++ b/arch/um/Makefile
@@ -33,12 +33,11 @@ MODE_INCLUDE	+= -I$(srctree)/$(ARCH_DIR)/include/shared/skas
 
 HEADER_ARCH 	:= $(SUBARCH)
 
-# Additional ARCH settings for x86
-ifeq ($(SUBARCH),i386)
-        HEADER_ARCH := x86
+ifneq ($(filter $(SUBARCH),x86 x86_64 i386),)
+	HEADER_ARCH := x86
 endif
-ifeq ($(SUBARCH),x86_64)
-        HEADER_ARCH := x86
+
+ifdef CONFIG_64BIT
 	KBUILD_CFLAGS += -mcmodel=large
 endif
 
-- 
cgit 


From 8fc3b9e9a229778e5af3aa453c44f1a3857ba769 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Thu, 28 Nov 2013 13:30:55 +0200
Subject: virtio_net: fix error handling for mergeable buffers

Eric Dumazet noticed that if we encounter an error
when processing a mergeable buffer, we don't
dequeue all of the buffers from this packet,
the result is almost sure to be loss of networking.

Jason Wang noticed that we also leak a page and that we don't decrement
the rq buf count, so we won't repost buffers (a resource leak).

Fix both issues.

Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Michael Dalton <mwdalton@google.com>
Reported-by: Eric Dumazet <edumazet@google.com>
Reported-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/virtio_net.c | 82 ++++++++++++++++++++++++++++++------------------
 1 file changed, 51 insertions(+), 31 deletions(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index acda66169973..71a2eac7b039 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -299,35 +299,47 @@ static struct sk_buff *page_to_skb(struct receive_queue *rq,
 	return skb;
 }
 
-static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb)
+static struct sk_buff *receive_mergeable(struct net_device *dev,
+					 struct receive_queue *rq,
+					 void *buf,
+					 unsigned int len)
 {
-	struct skb_vnet_hdr *hdr = skb_vnet_hdr(head_skb);
+	struct skb_vnet_hdr *hdr = buf;
+	int num_buf = hdr->mhdr.num_buffers;
+	struct page *page = virt_to_head_page(buf);
+	int offset = buf - page_address(page);
+	struct sk_buff *head_skb = page_to_skb(rq, page, offset, len,
+					       MERGE_BUFFER_LEN);
 	struct sk_buff *curr_skb = head_skb;
-	char *buf;
-	struct page *page;
-	int num_buf, len, offset;
 
-	num_buf = hdr->mhdr.num_buffers;
+	if (unlikely(!curr_skb))
+		goto err_skb;
+
 	while (--num_buf) {
-		int num_skb_frags = skb_shinfo(curr_skb)->nr_frags;
+		int num_skb_frags;
+
 		buf = virtqueue_get_buf(rq->vq, &len);
 		if (unlikely(!buf)) {
-			pr_debug("%s: rx error: %d buffers missing\n",
-				 head_skb->dev->name, hdr->mhdr.num_buffers);
-			head_skb->dev->stats.rx_length_errors++;
-			return -EINVAL;
+			pr_debug("%s: rx error: %d buffers out of %d missing\n",
+				 dev->name, num_buf, hdr->mhdr.num_buffers);
+			dev->stats.rx_length_errors++;
+			goto err_buf;
 		}
 		if (unlikely(len > MERGE_BUFFER_LEN)) {
 			pr_debug("%s: rx error: merge buffer too long\n",
-				 head_skb->dev->name);
+				 dev->name);
 			len = MERGE_BUFFER_LEN;
 		}
+
+		page = virt_to_head_page(buf);
+		--rq->num;
+
+		num_skb_frags = skb_shinfo(curr_skb)->nr_frags;
 		if (unlikely(num_skb_frags == MAX_SKB_FRAGS)) {
 			struct sk_buff *nskb = alloc_skb(0, GFP_ATOMIC);
-			if (unlikely(!nskb)) {
-				head_skb->dev->stats.rx_dropped++;
-				return -ENOMEM;
-			}
+
+			if (unlikely(!nskb))
+				goto err_skb;
 			if (curr_skb == head_skb)
 				skb_shinfo(curr_skb)->frag_list = nskb;
 			else
@@ -341,8 +353,7 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb)
 			head_skb->len += len;
 			head_skb->truesize += MERGE_BUFFER_LEN;
 		}
-		page = virt_to_head_page(buf);
-		offset = buf - (char *)page_address(page);
+		offset = buf - page_address(page);
 		if (skb_can_coalesce(curr_skb, num_skb_frags, page, offset)) {
 			put_page(page);
 			skb_coalesce_rx_frag(curr_skb, num_skb_frags - 1,
@@ -351,9 +362,28 @@ static int receive_mergeable(struct receive_queue *rq, struct sk_buff *head_skb)
 			skb_add_rx_frag(curr_skb, num_skb_frags, page,
 					offset, len, MERGE_BUFFER_LEN);
 		}
+	}
+
+	return head_skb;
+
+err_skb:
+	put_page(page);
+	while (--num_buf) {
+		buf = virtqueue_get_buf(rq->vq, &len);
+		if (unlikely(!buf)) {
+			pr_debug("%s: rx error: %d buffers missing\n",
+				 dev->name, num_buf);
+			dev->stats.rx_length_errors++;
+			break;
+		}
+		page = virt_to_head_page(buf);
+		put_page(page);
 		--rq->num;
 	}
-	return 0;
+err_buf:
+	dev->stats.rx_dropped++;
+	dev_kfree_skb(head_skb);
+	return NULL;
 }
 
 static void receive_buf(struct receive_queue *rq, void *buf, unsigned int len)
@@ -382,19 +412,9 @@ static void receive_buf(struct receive_queue *rq, void *buf, unsigned int len)
 		len -= sizeof(struct virtio_net_hdr);
 		skb_trim(skb, len);
 	} else if (vi->mergeable_rx_bufs) {
-		struct page *page = virt_to_head_page(buf);
-		skb = page_to_skb(rq, page,
-				  (char *)buf - (char *)page_address(page),
-				  len, MERGE_BUFFER_LEN);
-		if (unlikely(!skb)) {
-			dev->stats.rx_dropped++;
-			put_page(page);
+		skb = receive_mergeable(dev, rq, buf, len);
+		if (unlikely(!skb))
 			return;
-		}
-		if (receive_mergeable(rq, skb)) {
-			dev_kfree_skb(skb);
-			return;
-		}
 	} else {
 		page = buf;
 		skb = page_to_skb(rq, page, 0, len, PAGE_SIZE);
-- 
cgit 


From f121159d72091f25afb22007c833e60a6845e912 Mon Sep 17 00:00:00 2001
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Thu, 28 Nov 2013 13:30:59 +0200
Subject: virtio_net: make all RX paths handle erors consistently

receive mergeable now handles errors internally.
Do same for big and small packet paths, otherwise
the logic is too hard to follow.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/virtio_net.c | 54 +++++++++++++++++++++++++++++++++---------------
 1 file changed, 37 insertions(+), 17 deletions(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 71a2eac7b039..916241d16c67 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -299,6 +299,35 @@ static struct sk_buff *page_to_skb(struct receive_queue *rq,
 	return skb;
 }
 
+static struct sk_buff *receive_small(void *buf, unsigned int len)
+{
+	struct sk_buff * skb = buf;
+
+	len -= sizeof(struct virtio_net_hdr);
+	skb_trim(skb, len);
+
+	return skb;
+}
+
+static struct sk_buff *receive_big(struct net_device *dev,
+				   struct receive_queue *rq,
+				   void *buf,
+				   unsigned int len)
+{
+	struct page *page = buf;
+	struct sk_buff *skb = page_to_skb(rq, page, 0, len, PAGE_SIZE);
+
+	if (unlikely(!skb))
+		goto err;
+
+	return skb;
+
+err:
+	dev->stats.rx_dropped++;
+	give_pages(rq, page);
+	return NULL;
+}
+
 static struct sk_buff *receive_mergeable(struct net_device *dev,
 					 struct receive_queue *rq,
 					 void *buf,
@@ -392,7 +421,6 @@ static void receive_buf(struct receive_queue *rq, void *buf, unsigned int len)
 	struct net_device *dev = vi->dev;
 	struct virtnet_stats *stats = this_cpu_ptr(vi->stats);
 	struct sk_buff *skb;
-	struct page *page;
 	struct skb_vnet_hdr *hdr;
 
 	if (unlikely(len < sizeof(struct virtio_net_hdr) + ETH_HLEN)) {
@@ -407,23 +435,15 @@ static void receive_buf(struct receive_queue *rq, void *buf, unsigned int len)
 		return;
 	}
 
-	if (!vi->mergeable_rx_bufs && !vi->big_packets) {
-		skb = buf;
-		len -= sizeof(struct virtio_net_hdr);
-		skb_trim(skb, len);
-	} else if (vi->mergeable_rx_bufs) {
+	if (vi->mergeable_rx_bufs)
 		skb = receive_mergeable(dev, rq, buf, len);
-		if (unlikely(!skb))
-			return;
-	} else {
-		page = buf;
-		skb = page_to_skb(rq, page, 0, len, PAGE_SIZE);
-		if (unlikely(!skb)) {
-			dev->stats.rx_dropped++;
-			give_pages(rq, page);
-			return;
-		}
-	}
+	else if (vi->big_packets)
+		skb = receive_big(dev, rq, buf, len);
+	else
+		skb = receive_small(buf, len);
+
+	if (unlikely(!skb))
+		return;
 
 	hdr = skb_vnet_hdr(skb);
 
-- 
cgit 


From 3868204d6b89ea373a273e760609cb08020beb1a Mon Sep 17 00:00:00 2001
From: "fan.du" <fan.du@windriver.com>
Date: Sun, 1 Dec 2013 16:28:48 +0800
Subject: {pktgen, xfrm} Update IPv4 header total len and checksum after
 tranformation

commit a553e4a6317b2cfc7659542c10fe43184ffe53da ("[PKTGEN]: IPSEC support")
tried to support IPsec ESP transport transformation for pktgen, but acctually
this doesn't work at all for two reasons(The orignal transformed packet has
bad IPv4 checksum value, as well as wrong auth value, reported by wireshark)

- After transpormation, IPv4 header total length needs update,
  because encrypted payload's length is NOT same as that of plain text.

- After transformation, IPv4 checksum needs re-caculate because of payload
  has been changed.

With this patch, armmed pktgen with below cofiguration, Wireshark is able to
decrypted ESP packet generated by pktgen without any IPv4 checksum error or
auth value error.

pgset "flag IPSEC"
pgset "flows 1"

Signed-off-by: Fan Du <fan.du@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/pktgen.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 261357a66300..a797fff7f222 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -2527,6 +2527,8 @@ static int process_ipsec(struct pktgen_dev *pkt_dev,
 		if (x) {
 			int ret;
 			__u8 *eth;
+			struct iphdr *iph;
+
 			nhead = x->props.header_len - skb_headroom(skb);
 			if (nhead > 0) {
 				ret = pskb_expand_head(skb, nhead, 0, GFP_ATOMIC);
@@ -2548,6 +2550,11 @@ static int process_ipsec(struct pktgen_dev *pkt_dev,
 			eth = (__u8 *) skb_push(skb, ETH_HLEN);
 			memcpy(eth, pkt_dev->hh, 12);
 			*(u16 *) &eth[12] = protocol;
+
+			/* Update IPv4 header len as well as checksum value */
+			iph = ip_hdr(skb);
+			iph->tot_len = htons(skb->len - ETH_HLEN);
+			ip_send_check(iph);
 		}
 	}
 	return 1;
-- 
cgit 


From 833846e8fa0c51fb3e47bca8adfdd7b10643b737 Mon Sep 17 00:00:00 2001
From: Eugenia Emantayev <eugenia@mellanox.com>
Date: Sun, 1 Dec 2013 14:19:34 +0200
Subject: net/mlx4_en: Remove selftest TX queues empty condition

Remove waiting for TX queues to become empty during selftest.
This check is not necessary for any purpose, and might put
the driver into an infinite loop.

Signed-off-by: Eugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 drivers/net/ethernet/mellanox/mlx4/en_selftest.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_selftest.c b/drivers/net/ethernet/mellanox/mlx4/en_selftest.c
index 40626690e8a8..c11d063473e5 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_selftest.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_selftest.c
@@ -140,7 +140,6 @@ void mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf)
 {
 	struct mlx4_en_priv *priv = netdev_priv(dev);
 	struct mlx4_en_dev *mdev = priv->mdev;
-	struct mlx4_en_tx_ring *tx_ring;
 	int i, carrier_ok;
 
 	memset(buf, 0, sizeof(u64) * MLX4_EN_NUM_SELF_TEST);
@@ -150,16 +149,10 @@ void mlx4_en_ex_selftest(struct net_device *dev, u32 *flags, u64 *buf)
 		carrier_ok = netif_carrier_ok(dev);
 
 		netif_carrier_off(dev);
-retry_tx:
 		/* Wait until all tx queues are empty.
 		 * there should not be any additional incoming traffic
 		 * since we turned the carrier off */
 		msleep(200);
-		for (i = 0; i < priv->tx_ring_num && carrier_ok; i++) {
-			tx_ring = priv->tx_ring[i];
-			if (tx_ring->prod != (tx_ring->cons + tx_ring->last_nr_txbb))
-				goto retry_tx;
-		}
 
 		if (priv->mdev->dev->caps.flags &
 					MLX4_DEV_CAP_FLAG_UC_LOOPBACK) {
-- 
cgit 


From a9e51fe5e610dce8110ec383f50b96eeadd568e0 Mon Sep 17 00:00:00 2001
From: Axel Lin <axel.lin@ingics.com>
Date: Sun, 1 Dec 2013 19:41:06 +0800
Subject: pinctrl: abx500: Fix header file include guard

Fix a trivial typo.

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/pinctrl-abx500.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-abx500.h b/drivers/pinctrl/pinctrl-abx500.h
index eeca8f973999..82293806e842 100644
--- a/drivers/pinctrl/pinctrl-abx500.h
+++ b/drivers/pinctrl/pinctrl-abx500.h
@@ -1,4 +1,4 @@
-#ifndef PINCTRL_PINCTRL_ABx5O0_H
+#ifndef PINCTRL_PINCTRL_ABx500_H
 #define PINCTRL_PINCTRL_ABx500_H
 
 /* Package definitions */
-- 
cgit 


From d6437c14df89cb2df2bd9ef3692958d979b75d49 Mon Sep 17 00:00:00 2001
From: Oskar Schirmer <oskar@scara.com>
Date: Tue, 5 Nov 2013 12:13:54 +0000
Subject: ASoC: fsl: imx-pcm-fiq: remove bogus period delta calculation

Originally snd_hrtimer_callback() used iprtd->period_time for
some jiffies based estimation to determine the right moment
to call snd_pcm_period_elapsed(). As timer drifts may well be a
problem, this was changed in commit b4e82b5b785670b6 to be based
on buffer transmission progress, using iprtd->offset and
runtime->buffer_size to calculate the amount of data since last
period had elapsed.

Unfortunately, iprtd->offset counts in bytes, while
runtime->buffer_size counts frames, so adding these to find some
delta is like comparing apples and oranges, and eventually results
in negative delta values every now and then. This is no big harm,
because it simply causes snd_pcm_period_elapsed() being called
more often than necessary, as negative delta is taken for a
large unsigned value by implicit conversion rule.
Nonetheless, the calculation is broken, so one would replace
the runtime->buffer_size by its equivalent in bytes.

But then, there are chances snd_pcm_period_elapsed() is called
late, because calculating the moment for the elapsed period
into delta is based against the iprtd->last_offset, which is not
necessarily the first byte of the period in question, but some
random byte which the FIQ handler left us with in r8/r9 by
accident. Again, negative impact is low, as there are plenty of
periods already prefilled with data, and snd_pcm_period_elapsed()
will probably be called latest when the following period is
reached. However, the calculation is conceptually broken, and we
are best off removing the clever stuff altogether.

snd_pcm_period_elapsed() is now simply called once everytime
snd_hrtimer_callback() is run, which may not be most accurate,
but at least this way we are quite sure we dont miss an end of
period. There is not much extra effort wasted by superfluous
calls to snd_pcm_period_elapsed(), as the timer frequency
closely matches the period size anyway.

Signed-off-by: Oskar Schirmer <oskar@scara.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/imx-pcm-fiq.c | 21 ++-------------------
 1 file changed, 2 insertions(+), 19 deletions(-)

diff --git a/sound/soc/fsl/imx-pcm-fiq.c b/sound/soc/fsl/imx-pcm-fiq.c
index 2fc872b2deff..f53b3261b171 100644
--- a/sound/soc/fsl/imx-pcm-fiq.c
+++ b/sound/soc/fsl/imx-pcm-fiq.c
@@ -39,8 +39,6 @@ struct imx_pcm_runtime_data {
 	unsigned int period;
 	int periods;
 	unsigned long offset;
-	unsigned long last_offset;
-	unsigned long size;
 	struct hrtimer hrt;
 	int poll_time_ns;
 	struct snd_pcm_substream *substream;
@@ -55,7 +53,6 @@ static enum hrtimer_restart snd_hrtimer_callback(struct hrtimer *hrt)
 	struct snd_pcm_substream *substream = iprtd->substream;
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct pt_regs regs;
-	unsigned long delta;
 
 	if (!atomic_read(&iprtd->playing) && !atomic_read(&iprtd->capturing))
 		return HRTIMER_NORESTART;
@@ -67,19 +64,7 @@ static enum hrtimer_restart snd_hrtimer_callback(struct hrtimer *hrt)
 	else
 		iprtd->offset = regs.ARM_r9 & 0xffff;
 
-	/* How much data have we transferred since the last period report? */
-	if (iprtd->offset >= iprtd->last_offset)
-		delta = iprtd->offset - iprtd->last_offset;
-	else
-		delta = runtime->buffer_size + iprtd->offset
-			- iprtd->last_offset;
-
-	/* If we've transferred at least a period then report it and
-	 * reset our poll time */
-	if (delta >= iprtd->period) {
-		snd_pcm_period_elapsed(substream);
-		iprtd->last_offset = iprtd->offset;
-	}
+	snd_pcm_period_elapsed(substream);
 
 	hrtimer_forward_now(hrt, ns_to_ktime(iprtd->poll_time_ns));
 
@@ -96,11 +81,9 @@ static int snd_imx_pcm_hw_params(struct snd_pcm_substream *substream,
 	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct imx_pcm_runtime_data *iprtd = runtime->private_data;
 
-	iprtd->size = params_buffer_bytes(params);
 	iprtd->periods = params_periods(params);
-	iprtd->period = params_period_bytes(params) ;
+	iprtd->period = params_period_bytes(params);
 	iprtd->offset = 0;
-	iprtd->last_offset = 0;
 	iprtd->poll_time_ns = 1000000000 / params_rate(params) *
 				params_period_size(params);
 	snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer);
-- 
cgit 


From 23d8bb3bb65e3587ceff54e1b54dda3c48a14f28 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Fri, 8 Nov 2013 00:55:00 -0200
Subject: ASoC: fsl: imx-pcm-fiq: Remove unused 'runtime' variable

Commit 68f9672b (ASoC: fsl: imx-pcm-fiq: remove bogus period delta calculation)
introduced the following build warning:

sound/soc/fsl/imx-pcm-fiq.c:53:26: warning: unused variable 'runtime' [-Wunused-variable]

Remove the unused 'runtime' variable.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Oskar Schirmer <oskar@scara.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/imx-pcm-fiq.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sound/soc/fsl/imx-pcm-fiq.c b/sound/soc/fsl/imx-pcm-fiq.c
index f53b3261b171..f00b512dbada 100644
--- a/sound/soc/fsl/imx-pcm-fiq.c
+++ b/sound/soc/fsl/imx-pcm-fiq.c
@@ -51,7 +51,6 @@ static enum hrtimer_restart snd_hrtimer_callback(struct hrtimer *hrt)
 	struct imx_pcm_runtime_data *iprtd =
 		container_of(hrt, struct imx_pcm_runtime_data, hrt);
 	struct snd_pcm_substream *substream = iprtd->substream;
-	struct snd_pcm_runtime *runtime = substream->runtime;
 	struct pt_regs regs;
 
 	if (!atomic_read(&iprtd->playing) && !atomic_read(&iprtd->capturing))
-- 
cgit 


From 6c7ef410c986db7e57b83231427e4606a225606b Mon Sep 17 00:00:00 2001
From: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Date: Sat, 9 Nov 2013 08:41:14 +0800
Subject: ASoC: fsl: set correct platform drvdata in pcm030_fabric_probe()

platform_set_drvdata(op, pdata) in pcm030_fabric_probe()
will be overwrited when calling snd_soc_register_card(card),
but cm030_fabric_remove() use drvdata as a type of struct
pcm030_audio_data, so we should move platform_set_drvdata()
below snd_soc_register_card() call.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/fsl/pcm030-audio-fabric.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/soc/fsl/pcm030-audio-fabric.c b/sound/soc/fsl/pcm030-audio-fabric.c
index eb4373840bb6..3665f612819d 100644
--- a/sound/soc/fsl/pcm030-audio-fabric.c
+++ b/sound/soc/fsl/pcm030-audio-fabric.c
@@ -69,7 +69,6 @@ static int pcm030_fabric_probe(struct platform_device *op)
 		return -ENOMEM;
 
 	card->dev = &op->dev;
-	platform_set_drvdata(op, pdata);
 
 	pdata->card = card;
 
@@ -98,6 +97,8 @@ static int pcm030_fabric_probe(struct platform_device *op)
 	if (ret)
 		dev_err(&op->dev, "snd_soc_register_card() failed: %d\n", ret);
 
+	platform_set_drvdata(op, pdata);
+
 	return ret;
 }
 
-- 
cgit 


From fb28a75ad4806e17512025e03ec7c8255d055478 Mon Sep 17 00:00:00 2001
From: Jarkko Nikula <jarkko.nikula@bitmer.com>
Date: Sat, 30 Nov 2013 18:05:28 +0200
Subject: ASoC: omap: n810: Convert to clk_prepare_enable/clk_disable_unprepare

N810 audio driver has stopped working at some point. Probably when
OMAP2 was converted to common clock framework since now call to clk_enable
dumps the stack trace in drivers/clk/clk.c: __clk_enable() due
clk->prepare_count is zero.

Fix this by converting clk_enable/_disable calls to those that take care
of clock prepare/unprepare.

I'm not queueing this to linux-stable since OMAP2 common clock framework
conversion in commit ed1ebc4948fd ("ARM: OMAP2: clock: Convert to common clk")
happened before N810 was really usable in mainline and user base for N810 is
anyway small. Potential linux-stable candidates are only those after
commit 3d3a6d18abc6 ("watchdog: introduce retu_wdt driver").

Signed-off-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/omap/n810.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/omap/n810.c b/sound/soc/omap/n810.c
index 6d216cb6c19b..3fde9e402710 100644
--- a/sound/soc/omap/n810.c
+++ b/sound/soc/omap/n810.c
@@ -100,12 +100,12 @@ static int n810_startup(struct snd_pcm_substream *substream)
 				     SNDRV_PCM_HW_PARAM_CHANNELS, 2, 2);
 
 	n810_ext_control(&codec->dapm);
-	return clk_enable(sys_clkout2);
+	return clk_prepare_enable(sys_clkout2);
 }
 
 static void n810_shutdown(struct snd_pcm_substream *substream)
 {
-	clk_disable(sys_clkout2);
+	clk_disable_unprepare(sys_clkout2);
 }
 
 static int n810_hw_params(struct snd_pcm_substream *substream,
-- 
cgit 


From ebff65473f56e6c30de928fd6a4f1ce5ae36e8c5 Mon Sep 17 00:00:00 2001
From: Shawn Guo <shawn.guo@linaro.org>
Date: Mon, 2 Dec 2013 13:26:50 +0800
Subject: ASoC: core: fix devres parameter in devm_snd_soc_register_card()

Since devm_card_release() expects parameter 'res' to be a pointer to
struct snd_soc_card, devm_snd_soc_register_card() should really pass
such a pointer rather than the one to struct device.

This bug causes the kernel Oops below with imx-sgtl500 driver when we
remove the module.  It happens because with 'card' pointing to the wrong
structure, card->num_rtd becomes 0 in function soc_remove_dai_links().
Consequently, soc_remove_link_components() and in turn
soc_cleanup_codec[platform]_debugfs() will not be called on card
removal.  It results in that debugfs_card_root is being removed while
its child entries debugfs_codec_root and debugfs_platform_root are still
there, and thus the kernel Oops.

Fix the bug by correcting the parameter 'res' to be the pointer to
struct snd_soc_card.

$ lsmod
Module                  Size  Used by
snd_soc_imx_sgtl5000     3506  0
snd_soc_sgtl5000       13677  2
snd_soc_imx_audmux      5324  1 snd_soc_imx_sgtl5000
snd_soc_fsl_ssi         8139  2
imx_pcm_dma             1380  1 snd_soc_fsl_ssi
$ rmmod snd_soc_imx_sgtl5000
Unable to handle kernel paging request at virtual address e594025c
pgd = be134000
[e594025c] *pgd=00000000
Internal error: Oops: 5 [#1] SMP ARM
Modules linked in: snd_soc_imx_sgtl5000(-) snd_soc_sgtl5000 snd_soc_imx_audmux snd_soc_fsl_ssi imx_pcm_dma
CPU: 0 PID: 1793 Comm: rmmod Not tainted 3.13.0-rc1 #1570
task: bee28900 ti: bfbec000 task.ti: bfbec000
PC is at debugfs_remove_recursive+0x28/0x154
LR is at snd_soc_unregister_card+0xa0/0xcc
pc : [<80252b38>]    lr : [<80496ac4>]    psr: a0000013
sp : bfbede00  ip : bfbede28  fp : bfbede24
r10: 803281d4  r9 : bfbec000  r8 : 803271ac
r7 : bef54440  r6 : 00000004  r5 : bf9a4010  r4 : bf9a4010
r3 : e5940224  r2 : 00000000  r1 : bef54450  r0 : 803271ac
Flags: NzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 10c53c7d  Table: 4e13404a  DAC: 00000015
Process rmmod (pid: 1793, stack limit = 0xbfbec240)
Stack: (0xbfbede00 to 0xbfbee000)
de00: 00000000 bf9a4010 bf9a4010 00000004 bef54440 bec89000 bfbede44 bfbede28
de20: 80496ac4 80252b1c 804a4b60 bfbede60 bf9a4010 00000004 bfbede54 bfbede48
de40: 804a4b74 80496a30 bfbede94 bfbede58 80328728 804a4b6c bfbede94 a0000013
de60: bf1b5800 bef54440 00000002 bf9a4010 7f0169f8 bf9a4044 00000081 8000e9c4
de80: bfbec000 00000000 bfbedeac bfbede98 80328cb0 80328618 7f016000 bf9a4010
dea0: bfbedec4 bfbedeb0 8032561c 80328c84 bf9a4010 7f0169f8 bfbedee4 bfbedec8
dec0: 80325e84 803255a8 bee28900 7f0169f8 00000000 78208d30 bfbedefc bfbedee8
dee0: 80325410 80325dd4 beca8100 7f0169f8 bfbedf14 bfbedf00 803264f8 803253c8
df00: 7f01635c 7f016a3c bfbedf24 bfbedf18 80327098 803264d4 bfbedf34 bfbedf28
df20: 7f016370 80327090 bfbedfa4 bfbedf38 80085ef0 7f016368 bfbedf54 5f646e73
df40: 5f636f73 5f786d69 6c746773 30303035 00000000 78208008 bfbedf84 bfbedf68
df60: 800613b0 80061194 fffffffe 78208d00 7efc2f07 00000081 7f016a3c 00000800
df80: bfbedf84 00000000 00000000 fffffffe 78208d00 7efc2f07 00000000 bfbedfa8
dfa0: 8000e800 80085dcc fffffffe 78208d00 78208d30 00000800 a8c82400 a8c82400
dfc0: fffffffe 78208d00 7efc2f07 00000081 00000002 00000000 78208008 00000800
dfe0: 7efc2e1c 7efc2ba8 76f5ca47 76edec7c 80000010 78208d30 00000000 00000000
Backtrace:
[<80252b10>] (debugfs_remove_recursive+0x0/0x154) from [<80496ac4>] (snd_soc_unregister_card+0xa0/0xcc)
 r8:bec89000 r7:bef54440 r6:00000004 r5:bf9a4010 r4:bf9a4010
r3:00000000
[<80496a24>] (snd_soc_unregister_card+0x0/0xcc) from [<804a4b74>] (devm_card_release+0x14/0x18)
 r6:00000004 r5:bf9a4010 r4:bfbede60 r3:804a4b60
[<804a4b60>] (devm_card_release+0x0/0x18) from [<80328728>] (release_nodes+0x11c/0x1dc)
[<8032860c>] (release_nodes+0x0/0x1dc) from [<80328cb0>] (devres_release_all+0x38/0x54)
[<80328c78>] (devres_release_all+0x0/0x54) from [<8032561c>] (__device_release_driver+0x80/0xd4)
 r4:bf9a4010 r3:7f016000
[<8032559c>] (__device_release_driver+0x0/0xd4) from [<80325e84>] (driver_detach+0xbc/0xc0)
 r5:7f0169f8 r4:bf9a4010
[<80325dc8>] (driver_detach+0x0/0xc0) from [<80325410>] (bus_remove_driver+0x54/0x98)
 r6:78208d30 r5:00000000 r4:7f0169f8 r3:bee28900
[<803253bc>] (bus_remove_driver+0x0/0x98) from [<803264f8>] (driver_unregister+0x30/0x50)
 r4:7f0169f8 r3:beca8100
[<803264c8>] (driver_unregister+0x0/0x50) from [<80327098>] (platform_driver_unregister+0x14/0x18)
 r4:7f016a3c r3:7f01635c
[<80327084>] (platform_driver_unregister+0x0/0x18) from [<7f016370>] (imx_sgtl5000_driver_exit+0x14/0x1c [snd_soc_imx_sgtl5000])
[<7f01635c>] (imx_sgtl5000_driver_exit+0x0/0x1c [snd_soc_imx_sgtl5000]) from [<80085ef0>] (SyS_delete_module+0x130/0x18c)
[<80085dc0>] (SyS_delete_module+0x0/0x18c) from [<8000e800>] (ret_fast_syscall+0x0/0x48)
 r6:7efc2f07 r5:78208d00 r4:fffffffe
Code: 889da9f8 e5983020 e3530000 089da9f8 (e5933038)
---[ end trace 825e7e125251a225 ]---

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>
---
 sound/soc/soc-devres.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/soc-devres.c b/sound/soc/soc-devres.c
index b1d732255c02..3449c1e909ae 100644
--- a/sound/soc/soc-devres.c
+++ b/sound/soc/soc-devres.c
@@ -66,7 +66,7 @@ static void devm_card_release(struct device *dev, void *res)
  */
 int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card)
 {
-	struct device **ptr;
+	struct snd_soc_card **ptr;
 	int ret;
 
 	ptr = devres_alloc(devm_card_release, sizeof(*ptr), GFP_KERNEL);
@@ -75,7 +75,7 @@ int devm_snd_soc_register_card(struct device *dev, struct snd_soc_card *card)
 
 	ret = snd_soc_register_card(card);
 	if (ret == 0) {
-		*ptr = dev;
+		*ptr = card;
 		devres_add(dev, ptr);
 	} else {
 		devres_free(ptr);
-- 
cgit 


From 1cd9b2f78bf29d5282e02b32f9b3ecebc5842a7c Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 2 Dec 2013 13:19:45 +0100
Subject: ALSA: hda - Fix bad EAPD setup for HP machines with AD1984A

It seems that EAPD on NID 0x16 is the only control over all outputs on
HP machines with AD1984A while turning EAPD on NID 0x12 breaks the
output.  Thus we need to avoid fiddling EAPD on NID.  As a quick
workaround, just set own_eapd_ctrl flag for the wrong EAPD, then
implement finer EAPD controls.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=66321
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_analog.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index 1a83559f4cbd..34d86ec5d3dd 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -962,6 +962,7 @@ static void ad1884_fixup_hp_eapd(struct hda_codec *codec,
 	switch (action) {
 	case HDA_FIXUP_ACT_PRE_PROBE:
 		spec->gen.vmaster_mute.hook = ad1884_vmaster_hp_gpio_hook;
+		spec->gen.own_eapd_ctl = 1;
 		snd_hda_sequence_write_cache(codec, gpio_init_verbs);
 		break;
 	case HDA_FIXUP_ACT_PROBE:
-- 
cgit 


From 88d071fc9a93de2916822910c927f28ed15c3a56 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 2 Dec 2013 11:12:28 +0100
Subject: ALSA: hda - Fix complete_all() timing in deferred probes

When the probe of snd-hda-intel driver is deferred due to f/w loading
or the nested module loading, complete_all() should be also delayed
until the initialization really finished.  Otherwise, vga-switcheroo
client would start switching before the actual init is done.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/hda_intel.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index c6d230193da6..27aa14007cbd 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -3876,7 +3876,8 @@ static int azx_probe(struct pci_dev *pci,
 	}
 
 	dev++;
-	complete_all(&chip->probe_wait);
+	if (chip->disabled)
+		complete_all(&chip->probe_wait);
 	return 0;
 
 out_free:
@@ -3953,10 +3954,10 @@ static int azx_probe_continue(struct azx *chip)
 	if ((chip->driver_caps & AZX_DCAPS_PM_RUNTIME) || chip->use_vga_switcheroo)
 		pm_runtime_put_noidle(&pci->dev);
 
-	return 0;
-
 out_free:
-	chip->init_failed = 1;
+	if (err < 0)
+		chip->init_failed = 1;
+	complete_all(&chip->probe_wait);
 	return err;
 }
 
-- 
cgit 


From 58e7b1d5826ac6a64b1101d8a70162bc084a7d1e Mon Sep 17 00:00:00 2001
From: Ludovic Desroches <ludovic.desroches@atmel.com>
Date: Fri, 22 Nov 2013 17:08:43 +0100
Subject: ARM: at91: sama5d3: reduce TWI internal clock frequency

With some devices, transfer hangs during I2C frame transmission. This issue
disappears when reducing the internal frequency of the TWI IP. Even if it is
indicated that internal clock max frequency is 66MHz, it seems we have
oversampling on I2C signals making TWI believe that a transfer in progress
is done.

This fix has no impact on the I2C bus frequency.

Cc: <stable@vger.kernel.org> #3.10+
Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
 arch/arm/mach-at91/sama5d3.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/arm/mach-at91/sama5d3.c b/arch/arm/mach-at91/sama5d3.c
index 3ea86428ee09..a28873fe3049 100644
--- a/arch/arm/mach-at91/sama5d3.c
+++ b/arch/arm/mach-at91/sama5d3.c
@@ -95,19 +95,19 @@ static struct clk twi0_clk = {
 	.name		= "twi0_clk",
 	.pid		= SAMA5D3_ID_TWI0,
 	.type		= CLK_TYPE_PERIPHERAL,
-	.div		= AT91_PMC_PCR_DIV2,
+	.div		= AT91_PMC_PCR_DIV8,
 };
 static struct clk twi1_clk = {
 	.name		= "twi1_clk",
 	.pid		= SAMA5D3_ID_TWI1,
 	.type		= CLK_TYPE_PERIPHERAL,
-	.div		= AT91_PMC_PCR_DIV2,
+	.div		= AT91_PMC_PCR_DIV8,
 };
 static struct clk twi2_clk = {
 	.name		= "twi2_clk",
 	.pid		= SAMA5D3_ID_TWI2,
 	.type		= CLK_TYPE_PERIPHERAL,
-	.div		= AT91_PMC_PCR_DIV2,
+	.div		= AT91_PMC_PCR_DIV8,
 };
 static struct clk mmc0_clk = {
 	.name		= "mci0_clk",
-- 
cgit 


From d2607c3b78701fed52ba1bb953562da6702b2001 Mon Sep 17 00:00:00 2001
From: Nicolas Ferre <nicolas.ferre@atmel.com>
Date: Mon, 2 Dec 2013 10:58:32 +0100
Subject: ARM: at91: add usart3 alias to dtsi

Alias was missing for SoC of the at91sam9x5 familly that embed USART3.

Reported-by: Jiri Prchal <jiri.prchal@aksignal.cz>
[b.brezillon@overkiz.com: advised to place changes in at91sam9x5_usart3.dtsi]
Acked-by: Boris BREZILLON <b.brezillon@overkiz.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
 arch/arm/boot/dts/at91sam9x5_usart3.dtsi | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/boot/dts/at91sam9x5_usart3.dtsi b/arch/arm/boot/dts/at91sam9x5_usart3.dtsi
index 2347e9563cef..6801106fa1f8 100644
--- a/arch/arm/boot/dts/at91sam9x5_usart3.dtsi
+++ b/arch/arm/boot/dts/at91sam9x5_usart3.dtsi
@@ -11,6 +11,10 @@
 #include <dt-bindings/interrupt-controller/irq.h>
 
 / {
+	aliases {
+		serial4 = &usart3;
+	};
+
 	ahb {
 		apb {
 			pinctrl@fffff400 {
-- 
cgit 


From 7093bf2b7195541281cb711e31c027a8d826c6df Mon Sep 17 00:00:00 2001
From: Brent Taylor <motobud@gmail.com>
Date: Sun, 24 Nov 2013 12:02:35 -0600
Subject: ARM: at91: fixed unresolved symbol "at91_pm_set_standby" when built
 without CONFIG_PM

If CONFIG_PM is not defined, then arch/arm/mach-at91/pm.c is not
compiled in.  This patch creates an inline function that does nothing
if CONFIG_PM is not defined.

Signed-off-by: Brent Taylor <motobud@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
---
 arch/arm/mach-at91/pm.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/arm/mach-at91/pm.h b/arch/arm/mach-at91/pm.h
index 3ed190ce062b..c5101dcb4fb0 100644
--- a/arch/arm/mach-at91/pm.h
+++ b/arch/arm/mach-at91/pm.h
@@ -16,7 +16,11 @@
 #include <mach/at91_ramc.h>
 #include <mach/at91rm9200_sdramc.h>
 
+#ifdef CONFIG_PM
 extern void at91_pm_set_standby(void (*at91_standby)(void));
+#else
+static inline void at91_pm_set_standby(void (*at91_standby)(void)) { }
+#endif
 
 /*
  * The AT91RM9200 goes into self-refresh mode with this command, and will
-- 
cgit 


From e4de211cd31665c167351a428e08199ee6355e46 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 2 Dec 2013 15:07:59 +0100
Subject: ALSA: atmel: Fix possible array overflow

The static checker found a possible array overflow in atmel/abdac.c:
  static checker warning: "sound/atmel/abdac.c:373 set_sample_rates()
        error: buffer overflow 'dac->rates' 6 <= 6"

This patch papers over the buggy point, by ensuring that dac->rates[]
update not overflowing the actual array size.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/atmel/abdac.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/sound/atmel/abdac.c b/sound/atmel/abdac.c
index 872d59e35ee2..721d8fd45685 100644
--- a/sound/atmel/abdac.c
+++ b/sound/atmel/abdac.c
@@ -357,7 +357,8 @@ static int set_sample_rates(struct atmel_abdac *dac)
 		if (new_rate < 0)
 			break;
 		/* make sure we are below the ABDAC clock */
-		if (new_rate <= clk_get_rate(dac->pclk)) {
+		if (index < MAX_NUM_RATES &&
+		    new_rate <= clk_get_rate(dac->pclk)) {
 			dac->rates[index] = new_rate / 256;
 			index++;
 		}
-- 
cgit 


From e7ca237bfcf6a288702cb95e94ab94f642ccad88 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 2 Dec 2013 15:27:19 +0100
Subject: ALSA: hda - Another fixup for ASUS laptop with ALC660 codec

ASUS Z35HL laptop also needs the very same fix as the previous one
that was applied to ASUS W7J.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=66231
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index a98f3296b891..9ca83001fc37 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -4559,6 +4559,7 @@ static const struct hda_fixup alc861_fixups[] = {
 
 static const struct snd_pci_quirk alc861_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x1043, 0x1253, "ASUS W7J", ALC660_FIXUP_ASUS_W7J),
+	SND_PCI_QUIRK(0x1043, 0x1263, "ASUS Z35HL", ALC660_FIXUP_ASUS_W7J),
 	SND_PCI_QUIRK(0x1043, 0x1393, "ASUS A6Rp", ALC861_FIXUP_ASUS_A6RP),
 	SND_PCI_QUIRK_VENDOR(0x1043, "ASUS laptop", ALC861_FIXUP_AMP_VREF_0F),
 	SND_PCI_QUIRK(0x1462, 0x7254, "HP DX2200", ALC861_FIXUP_NO_JACK_DETECT),
-- 
cgit 


From ce8e0fd239e411e08a0cd83868898cd3f573d7cf Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 2 Dec 2013 15:01:35 +0100
Subject: ALSA: hda/analog - Handle inverted EAPD properly in vmaster hook

ad_vmaster_eapd_hook() needs to handle the inverted EAPD case
properly, too.  Otherwise the output gets broken on Lenovo N100 with
AD1986A codec.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=64971
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_analog.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index 34d86ec5d3dd..f6351b8e0f5d 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -147,6 +147,8 @@ static void ad_vmaster_eapd_hook(void *private_data, int enabled)
 
 	if (!spec->eapd_nid)
 		return;
+	if (codec->inv_eapd)
+		enabled = !enabled;
 	snd_hda_codec_update_cache(codec, spec->eapd_nid, 0,
 				   AC_VERB_SET_EAPD_BTLENABLE,
 				   enabled ? 0x02 : 0x00);
-- 
cgit 


From b3bd4fc3822a6b5883eaa556822487d87752d443 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Mon, 2 Dec 2013 15:04:03 +0100
Subject: ALSA: hda - Use always amps for auto-mute on AD1986A codec

It seems that AD1986A cannot manage the dynamic pin on/off for
auto-muting, but rather gets confused.  Since each output has own amp,
let's use it instead.

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=64971
Cc: <stable@vger.kernel.org> [v3.11+]
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_analog.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sound/pci/hda/patch_analog.c b/sound/pci/hda/patch_analog.c
index f6351b8e0f5d..cac015be3325 100644
--- a/sound/pci/hda/patch_analog.c
+++ b/sound/pci/hda/patch_analog.c
@@ -361,6 +361,9 @@ static int patch_ad1986a(struct hda_codec *codec)
 	 */
 	spec->gen.multiout.no_share_stream = 1;
 
+	/* AD1986A can't manage the dynamic pin on/off smoothly */
+	spec->gen.auto_mute_via_amp = 1;
+
 	snd_hda_pick_fixup(codec, ad1986a_fixup_models, ad1986a_fixup_tbl,
 			   ad1986a_fixups);
 	snd_hda_apply_fixup(codec, HDA_FIXUP_ACT_PRE_PROBE);
-- 
cgit 


From b0d8d2292160bb63de1972361ebed100c64b5b37 Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mon, 2 Dec 2013 09:44:51 -0800
Subject: vfs: fix subtle use-after-free of pipe_inode_info

The pipe code was trying (and failing) to be very careful about freeing
the pipe info only after the last access, with a pattern like:

        spin_lock(&inode->i_lock);
        if (!--pipe->files) {
                inode->i_pipe = NULL;
                kill = 1;
        }
        spin_unlock(&inode->i_lock);
        __pipe_unlock(pipe);
        if (kill)
                free_pipe_info(pipe);

where the final freeing is done last.

HOWEVER.  The above is actually broken, because while the freeing is
done at the end, if we have two racing processes releasing the pipe
inode info, the one that *doesn't* free it will decrement the ->files
count, and unlock the inode i_lock, but then still use the
"pipe_inode_info" afterwards when it does the "__pipe_unlock(pipe)".

This is *very* hard to trigger in practice, since the race window is
very small, and adding debug options seems to just hide it by slowing
things down.

Simon originally reported this way back in July as an Oops in
kmem_cache_allocate due to a single bit corruption (due to the final
"spin_unlock(pipe->mutex.wait_lock)" incrementing a field in a different
allocation that had re-used the free'd pipe-info), it's taken this long
to figure out.

Since the 'pipe->files' accesses aren't even protected by the pipe lock
(we very much use the inode lock for that), the simple solution is to
just drop the pipe lock early.  And since there were two users of this
pattern, create a helper function for it.

Introduced commit ba5bb147330a ("pipe: take allocation and freeing of
pipe_inode_info out of ->i_mutex").

Reported-by: Simon Kirby <sim@hostway.ca>
Reported-by: Ian Applegate <ia@cloudflare.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: stable@kernel.org   # v3.10+
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 fs/pipe.c | 39 +++++++++++++++++++--------------------
 1 file changed, 19 insertions(+), 20 deletions(-)

diff --git a/fs/pipe.c b/fs/pipe.c
index d2c45e14e6d8..0e0752ef2715 100644
--- a/fs/pipe.c
+++ b/fs/pipe.c
@@ -726,11 +726,25 @@ pipe_poll(struct file *filp, poll_table *wait)
 	return mask;
 }
 
+static void put_pipe_info(struct inode *inode, struct pipe_inode_info *pipe)
+{
+	int kill = 0;
+
+	spin_lock(&inode->i_lock);
+	if (!--pipe->files) {
+		inode->i_pipe = NULL;
+		kill = 1;
+	}
+	spin_unlock(&inode->i_lock);
+
+	if (kill)
+		free_pipe_info(pipe);
+}
+
 static int
 pipe_release(struct inode *inode, struct file *file)
 {
-	struct pipe_inode_info *pipe = inode->i_pipe;
-	int kill = 0;
+	struct pipe_inode_info *pipe = file->private_data;
 
 	__pipe_lock(pipe);
 	if (file->f_mode & FMODE_READ)
@@ -743,17 +757,9 @@ pipe_release(struct inode *inode, struct file *file)
 		kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
 		kill_fasync(&pipe->fasync_writers, SIGIO, POLL_OUT);
 	}
-	spin_lock(&inode->i_lock);
-	if (!--pipe->files) {
-		inode->i_pipe = NULL;
-		kill = 1;
-	}
-	spin_unlock(&inode->i_lock);
 	__pipe_unlock(pipe);
 
-	if (kill)
-		free_pipe_info(pipe);
-
+	put_pipe_info(inode, pipe);
 	return 0;
 }
 
@@ -1014,7 +1020,6 @@ static int fifo_open(struct inode *inode, struct file *filp)
 {
 	struct pipe_inode_info *pipe;
 	bool is_pipe = inode->i_sb->s_magic == PIPEFS_MAGIC;
-	int kill = 0;
 	int ret;
 
 	filp->f_version = 0;
@@ -1130,15 +1135,9 @@ err_wr:
 	goto err;
 
 err:
-	spin_lock(&inode->i_lock);
-	if (!--pipe->files) {
-		inode->i_pipe = NULL;
-		kill = 1;
-	}
-	spin_unlock(&inode->i_lock);
 	__pipe_unlock(pipe);
-	if (kill)
-		free_pipe_info(pipe);
+
+	put_pipe_info(inode, pipe);
 	return ret;
 }
 
-- 
cgit 


From 94f33c16f2108ad02599de2459c903ad45d825dc Mon Sep 17 00:00:00 2001
From: Nikith Ganigarakoppal <Nikith.Ganigarakoppal@pmcs.com>
Date: Wed, 13 Nov 2013 15:35:23 +0530
Subject: [SCSI] pm80xx: Module author addition

Signed-off-by: Nikith.Ganigarakoppal@pmcs.com
Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/pm8001/pm8001_init.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index 34f5f5ffef05..03d3ef41f449 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -1169,6 +1169,7 @@ module_exit(pm8001_exit);
 MODULE_AUTHOR("Jack Wang <jack_wang@usish.com>");
 MODULE_AUTHOR("Anand Kumar Santhanam <AnandKumar.Santhanam@pmcs.com>");
 MODULE_AUTHOR("Sangeetha Gnanasekaran <Sangeetha.Gnanasekaran@pmcs.com>");
+MODULE_AUTHOR("Nikith Ganigarakoppal <Nikith.Ganigarakoppal@pmcs.com>");
 MODULE_DESCRIPTION(
 		"PMC-Sierra PM8001/8081/8088/8089/8074/8076/8077 "
 		"SAS/SATA controller driver");
-- 
cgit 


From 34a9b81b476ea0fa7a2e7ec642830f690eb093aa Mon Sep 17 00:00:00 2001
From: Nikith Ganigarakoppal <Nikith.Ganigarakoppal@pmcs.com>
Date: Wed, 30 Oct 2013 16:13:22 +0530
Subject: [SCSI] pm80xx: Fix for direct attached device.

In case of direct attached SATA device delay is not enough.
It will give crash for set device state command response and
wait_for_completion is the best solution for this.

Signed-off-by: Nikith.Ganigarakoppal@pmcs.com
Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/pm8001/pm8001_sas.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/scsi/pm8001/pm8001_sas.c b/drivers/scsi/pm8001/pm8001_sas.c
index f4eb18e51631..f50ac44b950e 100644
--- a/drivers/scsi/pm8001/pm8001_sas.c
+++ b/drivers/scsi/pm8001/pm8001_sas.c
@@ -1098,15 +1098,17 @@ int pm8001_lu_reset(struct domain_device *dev, u8 *lun)
 	struct pm8001_tmf_task tmf_task;
 	struct pm8001_device *pm8001_dev = dev->lldd_dev;
 	struct pm8001_hba_info *pm8001_ha = pm8001_find_ha_by_dev(dev);
+	DECLARE_COMPLETION_ONSTACK(completion_setstate);
 	if (dev_is_sata(dev)) {
 		struct sas_phy *phy = sas_get_local_phy(dev);
 		rc = pm8001_exec_internal_task_abort(pm8001_ha, pm8001_dev ,
 			dev, 1, 0);
 		rc = sas_phy_reset(phy, 1);
 		sas_put_local_phy(phy);
+		pm8001_dev->setds_completion = &completion_setstate;
 		rc = PM8001_CHIP_DISP->set_dev_state_req(pm8001_ha,
 			pm8001_dev, 0x01);
-		msleep(2000);
+		wait_for_completion(&completion_setstate);
 	} else {
 		tmf_task.tmf = TMF_LU_RESET;
 		rc = pm8001_issue_ssp_tmf(dev, lun, &tmf_task);
-- 
cgit 


From 7d029005484a6125a91a075518b9cfde830bc709 Mon Sep 17 00:00:00 2001
From: Nikith Ganigarakoppal <Nikith.Ganigarakoppal@pmcs.com>
Date: Wed, 30 Oct 2013 16:23:47 +0530
Subject: [SCSI] pm80xx: Resetting the phy state.

Setting the phy state for hard reset response.
After sending hard reset for a device ,phy down event sets
the phy state to zero but for phy up event it will not set
the phy state again.This will cause problem to successive
hard resets.

Signed-off-by: Nikith.Ganigarakoppal@pmcs.com
Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/pm8001/pm8001_hwi.c | 2 ++
 drivers/scsi/pm8001/pm8001_hwi.h | 4 ++++
 drivers/scsi/pm8001/pm80xx_hwi.c | 2 ++
 drivers/scsi/pm8001/pm80xx_hwi.h | 2 ++
 4 files changed, 10 insertions(+)

diff --git a/drivers/scsi/pm8001/pm8001_hwi.c b/drivers/scsi/pm8001/pm8001_hwi.c
index f16ece91b94a..0a1296a87d66 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.c
+++ b/drivers/scsi/pm8001/pm8001_hwi.c
@@ -3403,6 +3403,7 @@ hw_event_sas_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
 	unsigned long flags;
 	u8 deviceType = pPayload->sas_identify.dev_type;
 	port->port_state =  portstate;
+	phy->phy_state = PHY_STATE_LINK_UP_SPC;
 	PM8001_MSG_DBG(pm8001_ha,
 		pm8001_printk("HW_EVENT_SAS_PHY_UP port id = %d, phy id = %d\n",
 		port_id, phy_id));
@@ -3483,6 +3484,7 @@ hw_event_sata_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
 		pm8001_printk("HW_EVENT_SATA_PHY_UP port id = %d,"
 		" phy id = %d\n", port_id, phy_id));
 	port->port_state =  portstate;
+	phy->phy_state = PHY_STATE_LINK_UP_SPC;
 	port->port_attached = 1;
 	pm8001_get_lrate_mode(phy, link_rate);
 	phy->phy_type |= PORT_TYPE_SATA;
diff --git a/drivers/scsi/pm8001/pm8001_hwi.h b/drivers/scsi/pm8001/pm8001_hwi.h
index 6d91e2446542..e4867e690c84 100644
--- a/drivers/scsi/pm8001/pm8001_hwi.h
+++ b/drivers/scsi/pm8001/pm8001_hwi.h
@@ -131,6 +131,10 @@
 #define LINKRATE_30			(0x02 << 8)
 #define LINKRATE_60			(0x04 << 8)
 
+/* for phy state */
+
+#define PHY_STATE_LINK_UP_SPC		0x1
+
 /* for new SPC controllers MEMBASE III is shared between BIOS and DATA */
 #define GSM_SM_BASE			0x4F0000
 struct mpi_msg_hdr{
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index 8987b1706216..c950dc5c9943 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -2894,6 +2894,7 @@ hw_event_sas_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
 	unsigned long flags;
 	u8 deviceType = pPayload->sas_identify.dev_type;
 	port->port_state = portstate;
+	phy->phy_state = PHY_STATE_LINK_UP_SPCV;
 	PM8001_MSG_DBG(pm8001_ha, pm8001_printk(
 		"portid:%d; phyid:%d; linkrate:%d; "
 		"portstate:%x; devicetype:%x\n",
@@ -2978,6 +2979,7 @@ hw_event_sata_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
 				port_id, phy_id, link_rate, portstate));
 
 	port->port_state = portstate;
+	phy->phy_state = PHY_STATE_LINK_UP_SPCV;
 	port->port_attached = 1;
 	pm8001_get_lrate_mode(phy, link_rate);
 	phy->phy_type |= PORT_TYPE_SATA;
diff --git a/drivers/scsi/pm8001/pm80xx_hwi.h b/drivers/scsi/pm8001/pm80xx_hwi.h
index c86816bea424..9970a385795d 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.h
+++ b/drivers/scsi/pm8001/pm80xx_hwi.h
@@ -215,6 +215,8 @@
 #define SAS_DOPNRJT_RTRY_TMO            128
 #define SAS_COPNRJT_RTRY_TMO            128
 
+/* for phy state */
+#define PHY_STATE_LINK_UP_SPCV		0x2
 /*
   Making ORR bigger than IT NEXUS LOSS which is 2000000us = 2 second.
   Assuming a bigger value 3 second, 3000000/128 = 23437.5 where 128
-- 
cgit 


From 6cd60b37f72b2d15b8983431546af50b7064935d Mon Sep 17 00:00:00 2001
From: Nikith Ganigarakoppal <Nikith.Ganigarakoppal@pmcs.com>
Date: Mon, 11 Nov 2013 15:28:14 +0530
Subject: [SCSI] pm80xx: Tasklets synchronization fix.

When multiple vectors are used, the vector variable is over written,
resulting in unhandled operation for those vectors.
This fix prevents the problem by maitaining HBA instance and
vector values for each irq.

[jejb: checkpatch fixes]
Signed-off-by: Nikith.Ganigarakoppal@pmcs.com
Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/pm8001/pm8001_init.c | 90 ++++++++++++++++++++++-----------------
 drivers/scsi/pm8001/pm8001_sas.h  |  9 ++--
 2 files changed, 58 insertions(+), 41 deletions(-)

diff --git a/drivers/scsi/pm8001/pm8001_init.c b/drivers/scsi/pm8001/pm8001_init.c
index 03d3ef41f449..73a120d81b4d 100644
--- a/drivers/scsi/pm8001/pm8001_init.c
+++ b/drivers/scsi/pm8001/pm8001_init.c
@@ -175,20 +175,16 @@ static void pm8001_free(struct pm8001_hba_info *pm8001_ha)
 static void pm8001_tasklet(unsigned long opaque)
 {
 	struct pm8001_hba_info *pm8001_ha;
-	u32 vec;
-	pm8001_ha = (struct pm8001_hba_info *)opaque;
+	struct isr_param *irq_vector;
+
+	irq_vector = (struct isr_param *)opaque;
+	pm8001_ha = irq_vector->drv_inst;
 	if (unlikely(!pm8001_ha))
 		BUG_ON(1);
-	vec = pm8001_ha->int_vector;
-	PM8001_CHIP_DISP->isr(pm8001_ha, vec);
+	PM8001_CHIP_DISP->isr(pm8001_ha, irq_vector->irq_id);
 }
 #endif
 
-static struct  pm8001_hba_info *outq_to_hba(u8 *outq)
-{
-	return container_of((outq - *outq), struct pm8001_hba_info, outq[0]);
-}
-
 /**
  * pm8001_interrupt_handler_msix - main MSIX interrupt handler.
  * It obtains the vector number and calls the equivalent bottom
@@ -198,18 +194,20 @@ static struct  pm8001_hba_info *outq_to_hba(u8 *outq)
  */
 static irqreturn_t pm8001_interrupt_handler_msix(int irq, void *opaque)
 {
-	struct pm8001_hba_info *pm8001_ha = outq_to_hba(opaque);
-	u8 outq = *(u8 *)opaque;
+	struct isr_param *irq_vector;
+	struct pm8001_hba_info *pm8001_ha;
 	irqreturn_t ret = IRQ_HANDLED;
+	irq_vector = (struct isr_param *)opaque;
+	pm8001_ha = irq_vector->drv_inst;
+
 	if (unlikely(!pm8001_ha))
 		return IRQ_NONE;
 	if (!PM8001_CHIP_DISP->is_our_interupt(pm8001_ha))
 		return IRQ_NONE;
-	pm8001_ha->int_vector = outq;
 #ifdef PM8001_USE_TASKLET
-	tasklet_schedule(&pm8001_ha->tasklet);
+	tasklet_schedule(&pm8001_ha->tasklet[irq_vector->irq_id]);
 #else
-	ret = PM8001_CHIP_DISP->isr(pm8001_ha, outq);
+	ret = PM8001_CHIP_DISP->isr(pm8001_ha, irq_vector->irq_id);
 #endif
 	return ret;
 }
@@ -230,9 +228,8 @@ static irqreturn_t pm8001_interrupt_handler_intx(int irq, void *dev_id)
 	if (!PM8001_CHIP_DISP->is_our_interupt(pm8001_ha))
 		return IRQ_NONE;
 
-	pm8001_ha->int_vector = 0;
 #ifdef PM8001_USE_TASKLET
-	tasklet_schedule(&pm8001_ha->tasklet);
+	tasklet_schedule(&pm8001_ha->tasklet[0]);
 #else
 	ret = PM8001_CHIP_DISP->isr(pm8001_ha, 0);
 #endif
@@ -457,7 +454,7 @@ static struct pm8001_hba_info *pm8001_pci_alloc(struct pci_dev *pdev,
 {
 	struct pm8001_hba_info *pm8001_ha;
 	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
-
+	int j;
 
 	pm8001_ha = sha->lldd_ha;
 	if (!pm8001_ha)
@@ -480,12 +477,14 @@ static struct pm8001_hba_info *pm8001_pci_alloc(struct pci_dev *pdev,
 		pm8001_ha->iomb_size = IOMB_SIZE_SPC;
 
 #ifdef PM8001_USE_TASKLET
-	/**
-	* default tasklet for non msi-x interrupt handler/first msi-x
-	* interrupt handler
-	**/
-	tasklet_init(&pm8001_ha->tasklet, pm8001_tasklet,
-			(unsigned long)pm8001_ha);
+	/* Tasklet for non msi-x interrupt handler */
+	if ((!pdev->msix_cap) || (pm8001_ha->chip_id == chip_8001))
+		tasklet_init(&pm8001_ha->tasklet[0], pm8001_tasklet,
+			(unsigned long)&(pm8001_ha->irq_vector[0]));
+	else
+		for (j = 0; j < PM8001_MAX_MSIX_VEC; j++)
+			tasklet_init(&pm8001_ha->tasklet[j], pm8001_tasklet,
+				(unsigned long)&(pm8001_ha->irq_vector[j]));
 #endif
 	pm8001_ioremap(pm8001_ha);
 	if (!pm8001_alloc(pm8001_ha, ent))
@@ -733,19 +732,20 @@ static u32 pm8001_setup_msix(struct pm8001_hba_info *pm8001_ha)
 			"pci_enable_msix request ret:%d no of intr %d\n",
 					rc, pm8001_ha->number_of_intr));
 
-		for (i = 0; i < number_of_intr; i++)
-			pm8001_ha->outq[i] = i;
 
 		for (i = 0; i < number_of_intr; i++) {
 			snprintf(intr_drvname[i], sizeof(intr_drvname[0]),
 					DRV_NAME"%d", i);
+			pm8001_ha->irq_vector[i].irq_id = i;
+			pm8001_ha->irq_vector[i].drv_inst = pm8001_ha;
+
 			if (request_irq(pm8001_ha->msix_entries[i].vector,
 				pm8001_interrupt_handler_msix, flag,
-				intr_drvname[i], &pm8001_ha->outq[i])) {
+				intr_drvname[i], &(pm8001_ha->irq_vector[i]))) {
 				for (j = 0; j < i; j++)
 					free_irq(
 					pm8001_ha->msix_entries[j].vector,
-					&pm8001_ha->outq[j]);
+					&(pm8001_ha->irq_vector[i]));
 				pci_disable_msix(pm8001_ha->pdev);
 				break;
 			}
@@ -907,7 +907,7 @@ static void pm8001_pci_remove(struct pci_dev *pdev)
 {
 	struct sas_ha_struct *sha = pci_get_drvdata(pdev);
 	struct pm8001_hba_info *pm8001_ha;
-	int i;
+	int i, j;
 	pm8001_ha = sha->lldd_ha;
 	sas_unregister_ha(sha);
 	sas_remove_host(pm8001_ha->shost);
@@ -921,13 +921,18 @@ static void pm8001_pci_remove(struct pci_dev *pdev)
 		synchronize_irq(pm8001_ha->msix_entries[i].vector);
 	for (i = 0; i < pm8001_ha->number_of_intr; i++)
 		free_irq(pm8001_ha->msix_entries[i].vector,
-				&pm8001_ha->outq[i]);
+				&(pm8001_ha->irq_vector[i]));
 	pci_disable_msix(pdev);
 #else
 	free_irq(pm8001_ha->irq, sha);
 #endif
 #ifdef PM8001_USE_TASKLET
-	tasklet_kill(&pm8001_ha->tasklet);
+	/* For non-msix and msix interrupts */
+	if ((!pdev->msix_cap) || (pm8001_ha->chip_id == chip_8001))
+		tasklet_kill(&pm8001_ha->tasklet[0]);
+	else
+		for (j = 0; j < PM8001_MAX_MSIX_VEC; j++)
+			tasklet_kill(&pm8001_ha->tasklet[j]);
 #endif
 	pm8001_free(pm8001_ha);
 	kfree(sha->sas_phy);
@@ -948,7 +953,7 @@ static int pm8001_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 {
 	struct sas_ha_struct *sha = pci_get_drvdata(pdev);
 	struct pm8001_hba_info *pm8001_ha;
-	int i;
+	int  i, j;
 	u32 device_state;
 	pm8001_ha = sha->lldd_ha;
 	flush_workqueue(pm8001_wq);
@@ -964,13 +969,18 @@ static int pm8001_pci_suspend(struct pci_dev *pdev, pm_message_t state)
 		synchronize_irq(pm8001_ha->msix_entries[i].vector);
 	for (i = 0; i < pm8001_ha->number_of_intr; i++)
 		free_irq(pm8001_ha->msix_entries[i].vector,
-				&pm8001_ha->outq[i]);
+				&(pm8001_ha->irq_vector[i]));
 	pci_disable_msix(pdev);
 #else
 	free_irq(pm8001_ha->irq, sha);
 #endif
 #ifdef PM8001_USE_TASKLET
-	tasklet_kill(&pm8001_ha->tasklet);
+	/* For non-msix and msix interrupts */
+	if ((!pdev->msix_cap) || (pm8001_ha->chip_id == chip_8001))
+		tasklet_kill(&pm8001_ha->tasklet[0]);
+	else
+		for (j = 0; j < PM8001_MAX_MSIX_VEC; j++)
+			tasklet_kill(&pm8001_ha->tasklet[j]);
 #endif
 	device_state = pci_choose_state(pdev, state);
 	pm8001_printk("pdev=0x%p, slot=%s, entering "
@@ -993,7 +1003,7 @@ static int pm8001_pci_resume(struct pci_dev *pdev)
 	struct sas_ha_struct *sha = pci_get_drvdata(pdev);
 	struct pm8001_hba_info *pm8001_ha;
 	int rc;
-	u8 i = 0;
+	u8 i = 0, j;
 	u32 device_state;
 	pm8001_ha = sha->lldd_ha;
 	device_state = pdev->current_state;
@@ -1033,10 +1043,14 @@ static int pm8001_pci_resume(struct pci_dev *pdev)
 	if (rc)
 		goto err_out_disable;
 #ifdef PM8001_USE_TASKLET
-	/* default tasklet for non msi-x interrupt handler/first msi-x
-	* interrupt handler */
-	tasklet_init(&pm8001_ha->tasklet, pm8001_tasklet,
-			(unsigned long)pm8001_ha);
+	/*  Tasklet for non msi-x interrupt handler */
+	if ((!pdev->msix_cap) || (pm8001_ha->chip_id == chip_8001))
+		tasklet_init(&pm8001_ha->tasklet[0], pm8001_tasklet,
+			(unsigned long)&(pm8001_ha->irq_vector[0]));
+	else
+		for (j = 0; j < PM8001_MAX_MSIX_VEC; j++)
+			tasklet_init(&pm8001_ha->tasklet[j], pm8001_tasklet,
+				(unsigned long)&(pm8001_ha->irq_vector[j]));
 #endif
 	PM8001_CHIP_DISP->interrupt_enable(pm8001_ha, 0);
 	if (pm8001_ha->chip_id != chip_8001) {
diff --git a/drivers/scsi/pm8001/pm8001_sas.h b/drivers/scsi/pm8001/pm8001_sas.h
index 6037d477a183..6c5fd5ee22d3 100644
--- a/drivers/scsi/pm8001/pm8001_sas.h
+++ b/drivers/scsi/pm8001/pm8001_sas.h
@@ -466,6 +466,10 @@ struct pm8001_hba_memspace {
 	u64			membase;
 	u32			memsize;
 };
+struct isr_param {
+	struct pm8001_hba_info *drv_inst;
+	u32 irq_id;
+};
 struct pm8001_hba_info {
 	char			name[PM8001_NAME_LENGTH];
 	struct list_head	list;
@@ -519,14 +523,13 @@ struct pm8001_hba_info {
 	int			number_of_intr;/*will be used in remove()*/
 #endif
 #ifdef PM8001_USE_TASKLET
-	struct tasklet_struct	tasklet;
+	struct tasklet_struct	tasklet[PM8001_MAX_MSIX_VEC];
 #endif
 	u32			logging_level;
 	u32			fw_status;
 	u32			smp_exp_mode;
-	u32			int_vector;
 	const struct firmware 	*fw_image;
-	u8			outq[PM8001_MAX_MSIX_VEC];
+	struct isr_param irq_vector[PM8001_MAX_MSIX_VEC];
 };
 
 struct pm8001_work {
-- 
cgit 


From a1470c7bf3a4676e62e4c0fb204e339399eb5c59 Mon Sep 17 00:00:00 2001
From: James Bottomley <JBottomley@Parallels.com>
Date: Fri, 15 Nov 2013 14:58:00 -0800
Subject: [SCSI] enclosure: fix WARN_ON in dual path device removing

Bug report from: wenxiong@linux.vnet.ibm.com

The issue is happened in dual controller configuration. We got the
sysfs warnings when rmmod the ipr module.

enclosure_unregister() in drivers/msic/enclosure.c, call device_unregister()
for each componment deivce, device_unregister() ->device_del()->kobject_del()
->sysfs_remove_dir(). In sysfs_remove_dir(), set kobj->sd = NULL.

For each componment device,
enclosure_component_release()->enclosure_remove_links()->sysfs_remove_link()
in which checking kobj->sd again, it has been set as NULL when doing
device_unregister. So we saw all these sysfs WARNING.

Tested-by: wenxiong@linux.vnet.ibm.com
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/misc/enclosure.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/misc/enclosure.c b/drivers/misc/enclosure.c
index 0e8df41aaf14..2cf2bbc0b927 100644
--- a/drivers/misc/enclosure.c
+++ b/drivers/misc/enclosure.c
@@ -198,6 +198,13 @@ static void enclosure_remove_links(struct enclosure_component *cdev)
 {
 	char name[ENCLOSURE_NAME_SIZE];
 
+	/*
+	 * In odd circumstances, like multipath devices, something else may
+	 * already have removed the links, so check for this condition first.
+	 */
+	if (!cdev->dev->kobj.sd)
+		return;
+
 	enclosure_link_name(cdev, name);
 	sysfs_remove_link(&cdev->dev->kobj, name);
 	sysfs_remove_link(&cdev->cdev.kobj, "device");
-- 
cgit 


From 2ba2866f782f7f1c38abc3dd56d3295efd289264 Mon Sep 17 00:00:00 2001
From: Balaji T K <balajitk@ti.com>
Date: Mon, 2 Dec 2013 11:38:13 -0800
Subject: ARM: dts: omap4-panda-common: Fix pin muxing for wl12xx

pin mux wl12xx_gpio and wl12xx_pins should be part of omap4_pmx_core
and not omap4_pmx_wkup. So, move wl12xx_* to omap4_pmx_core.

Fix the following error message:
pinctrl-single 4a31e040.pinmux: mux offset out of range: 0x38 (0x38)
pinctrl-single 4a31e040.pinmux: could not add functions for pinmux_wl12xx_pins 56x

SDIO card is not detected after moving pin mux to omap4_pmx_core since
sdmmc5_clk pull is disabled. Enable Pull up on sdmmc5_clk to detect SDIO card.

This fixes a regression where WLAN did not work after a warm reset
or after one up/down cycle that happened when we move omap4 to boot
using device tree only. For reference, the kernel bug is described at:

https://bugzilla.kernel.org/show_bug.cgi?id=63821

Cc: stable@vger.kernel.org # v3.10+
Signed-off-by: Balaji T K <balajitk@ti.com>
[tony@atomide.com: update comments to describe the regression]
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap4-panda-common.dtsi | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/arch/arm/boot/dts/omap4-panda-common.dtsi b/arch/arm/boot/dts/omap4-panda-common.dtsi
index 298e85020e1b..88c6a05cab41 100644
--- a/arch/arm/boot/dts/omap4-panda-common.dtsi
+++ b/arch/arm/boot/dts/omap4-panda-common.dtsi
@@ -246,15 +246,6 @@
 			0xf0 (PIN_INPUT_PULLUP | MUX_MODE0)	/* i2c4_sda */
 		>;
 	};
-};
-
-&omap4_pmx_wkup {
-	led_wkgpio_pins: pinmux_leds_wkpins {
-		pinctrl-single,pins = <
-			0x1a (PIN_OUTPUT | MUX_MODE3)	/* gpio_wk7 */
-			0x1c (PIN_OUTPUT | MUX_MODE3)	/* gpio_wk8 */
-		>;
-	};
 
 	/*
 	 * wl12xx GPIO outputs for WLAN_EN, BT_EN, FM_EN, BT_WAKEUP
@@ -274,7 +265,7 @@
 		pinctrl-single,pins = <
 			0x38 (PIN_INPUT | MUX_MODE3)		/* gpmc_ncs2.gpio_52 */
 			0x3a (PIN_INPUT | MUX_MODE3)		/* gpmc_ncs3.gpio_53 */
-			0x108 (PIN_OUTPUT | MUX_MODE0)		/* sdmmc5_clk.sdmmc5_clk */
+			0x108 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc5_clk.sdmmc5_clk */
 			0x10a (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc5_cmd.sdmmc5_cmd */
 			0x10c (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc5_dat0.sdmmc5_dat0 */
 			0x10e (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc5_dat1.sdmmc5_dat1 */
@@ -284,6 +275,15 @@
 	};
 };
 
+&omap4_pmx_wkup {
+	led_wkgpio_pins: pinmux_leds_wkpins {
+		pinctrl-single,pins = <
+			0x1a (PIN_OUTPUT | MUX_MODE3)	/* gpio_wk7 */
+			0x1c (PIN_OUTPUT | MUX_MODE3)	/* gpio_wk8 */
+		>;
+	};
+};
+
 &i2c1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&i2c1_pins>;
-- 
cgit 


From 2562f5281355d59b7ba31a46567e24ede4e2dea1 Mon Sep 17 00:00:00 2001
From: Balaji T K <balajitk@ti.com>
Date: Mon, 2 Dec 2013 11:38:14 -0800
Subject: ARM: dts: omap4-sdp: Fix pin muxing for wl12xx

Mux mode for wlan/sdmmc5 should be MODE0 in pinmux_wl12xx_pins and
Enable Pull up on sdmmc5_clk to detect SDIO card.

This fixes WLAN on omap4-sdp that got broken in v3.10 when we
moved omap4 to boot using device tree only as I did not have
the WL12XX card in my omap4 SDP to test with. The commit that
attempted to make WL12XX working on omap4 SDP was 775d2418f309
(ARM: dts: Fix muxing and regulator for wl12xx on the SDIO
bus for blaze).

Signed-off-by: Balaji T K <balajitk@ti.com>
[tony@atomide.com: updated comments for the regression]
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap4-sdp.dts | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm/boot/dts/omap4-sdp.dts b/arch/arm/boot/dts/omap4-sdp.dts
index 5fc3f43c5a81..dbc81fb6ef03 100644
--- a/arch/arm/boot/dts/omap4-sdp.dts
+++ b/arch/arm/boot/dts/omap4-sdp.dts
@@ -300,12 +300,12 @@
 	wl12xx_pins: pinmux_wl12xx_pins {
 		pinctrl-single,pins = <
 			0x3a (PIN_INPUT | MUX_MODE3)		/* gpmc_ncs3.gpio_53 */
-			0x108 (PIN_OUTPUT | MUX_MODE3)		/* sdmmc5_clk.sdmmc5_clk */
-			0x10a (PIN_INPUT_PULLUP | MUX_MODE3)	/* sdmmc5_cmd.sdmmc5_cmd */
-			0x10c (PIN_INPUT_PULLUP | MUX_MODE3)	/* sdmmc5_dat0.sdmmc5_dat0 */
-			0x10e (PIN_INPUT_PULLUP | MUX_MODE3)	/* sdmmc5_dat1.sdmmc5_dat1 */
-			0x110 (PIN_INPUT_PULLUP | MUX_MODE3)	/* sdmmc5_dat2.sdmmc5_dat2 */
-			0x112 (PIN_INPUT_PULLUP | MUX_MODE3)	/* sdmmc5_dat3.sdmmc5_dat3 */
+			0x108 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc5_clk.sdmmc5_clk */
+			0x10a (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc5_cmd.sdmmc5_cmd */
+			0x10c (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc5_dat0.sdmmc5_dat0 */
+			0x10e (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc5_dat1.sdmmc5_dat1 */
+			0x110 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc5_dat2.sdmmc5_dat2 */
+			0x112 (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc5_dat3.sdmmc5_dat3 */
 		>;
 	};
 };
-- 
cgit 


From 33e9c392adf521b0a5be7ee2b9b28705b47f8967 Mon Sep 17 00:00:00 2001
From: Jarkko Nikula <jarkko.nikula@bitmer.com>
Date: Mon, 2 Dec 2013 11:38:14 -0800
Subject: ARM: dts: omap3-beagle: Add omap-twl4030 audio support

This adds typical McBSP2-TWL4030 audio description to the legacy
Beagle Board.

Signed-off-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap3-beagle.dts | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/arch/arm/boot/dts/omap3-beagle.dts b/arch/arm/boot/dts/omap3-beagle.dts
index 4e384fcc6ad5..3ba4a625ea5b 100644
--- a/arch/arm/boot/dts/omap3-beagle.dts
+++ b/arch/arm/boot/dts/omap3-beagle.dts
@@ -61,6 +61,14 @@
 		vcc-supply = <&hsusb2_power>;
 	};
 
+	sound {
+		compatible = "ti,omap-twl4030";
+		ti,model = "omap3beagle";
+
+		ti,mcbsp = <&mcbsp2>;
+		ti,codec = <&twl_audio>;
+	};
+
 	gpio_keys {
 		compatible = "gpio-keys";
 
@@ -120,6 +128,12 @@
 		reg = <0x48>;
 		interrupts = <7>; /* SYS_NIRQ cascaded to intc */
 		interrupt-parent = <&intc>;
+
+		twl_audio: audio {
+			compatible = "ti,twl4030-audio";
+			codec {
+			};
+		};
 	};
 };
 
-- 
cgit 


From 1cfc4bdd51970ac07c9eea545e65a3b16dc269b6 Mon Sep 17 00:00:00 2001
From: Rajendra Nayak <rnayak@ti.com>
Date: Mon, 2 Dec 2013 11:38:14 -0800
Subject: ARM: OMAP2+: Powerdomain: Fix unchecked dereference of arch_pwrdm

Commit 'cd8abed' "ARM: OMAP2+: Powerdomain: Remove the need to
always have a voltdm associated to a pwrdm" leads to the following
Smatch complaint:

arch/arm/mach-omap2/powerdomain.c:131 _pwrdm_register()
	 error: we previously assumed 'arch_pwrdm' could be null (see line 105)

So, fix the unchecked dereference of arch_pwrdm.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/powerdomain.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/arch/arm/mach-omap2/powerdomain.c b/arch/arm/mach-omap2/powerdomain.c
index e233dfcbc186..93a2a6e4260f 100644
--- a/arch/arm/mach-omap2/powerdomain.c
+++ b/arch/arm/mach-omap2/powerdomain.c
@@ -128,7 +128,8 @@ skip_voltdm:
 	for (i = 0; i < pwrdm->banks; i++)
 		pwrdm->ret_mem_off_counter[i] = 0;
 
-	arch_pwrdm->pwrdm_wait_transition(pwrdm);
+	if (arch_pwrdm && arch_pwrdm->pwrdm_wait_transition)
+		arch_pwrdm->pwrdm_wait_transition(pwrdm);
 	pwrdm->state = pwrdm_read_pwrst(pwrdm);
 	pwrdm->state_counter[pwrdm->state] = 1;
 
-- 
cgit 


From ac46bf3933421bde881399d9ad3d165064862cc3 Mon Sep 17 00:00:00 2001
From: Florian Vaussard <florian.vaussard@epfl.ch>
Date: Mon, 2 Dec 2013 11:38:15 -0800
Subject: ARM: dts: Fix the name of supplies for smsc911x shared by OMAP

drivers/net/ethernet/smsc/smsc911x.c is expecting supplies named
"vdd33a" and "vddvario". Currently the shared DTS file provides
"vmmc" and "vmmc_aux", and the supply lookup will fail:

smsc911x 2c000000.ethernet: Looking up vdd33a-supply from device tree
smsc911x 2c000000.ethernet: Looking up vdd33a-supply property in node /ocp/gpmc@6e000000/ethernet@gpmc failed
smsc911x 2c000000.ethernet: Looking up vddvario-supply from device tree
smsc911x 2c000000.ethernet: Looking up vddvario-supply property in node /ocp/gpmc@6e000000/ethernet@gpmc failed

Fix it!

Looks like commmit 6b2978ac40e4 (ARM: dts: Shared file for omap GPMC
connected smsc911x) made the problem more visible by moving the smc911x
configuration from the omap3-igep0020.dts file to the generic file.
But it seems we've had this problem since commit d72b4415011e
(ARM: dts: omap3-igep0020: Add SMSC911x LAN chip support).

Tested on OMAP3 Overo platform.

Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch>
[tony@atomide.com: updated comments for the commits causing the problem]
Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi b/arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi
index 9c18adf788f7..f577b7df9a29 100644
--- a/arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi
+++ b/arch/arm/boot/dts/omap-gpmc-smsc911x.dtsi
@@ -44,8 +44,8 @@
 		gpmc,wr-access-ns = <186>;
 		gpmc,cycle2cycle-samecsen;
 		gpmc,cycle2cycle-diffcsen;
-		vmmc-supply = <&vddvario>;
-		vmmc_aux-supply = <&vdd33a>;
+		vddvario-supply = <&vddvario>;
+		vdd33a-supply = <&vdd33a>;
 		reg-io-width = <4>;
 		smsc,save-mac-address;
 	};
-- 
cgit 


From b65502879556d041b45104c6a35abbbba28c8f2d Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Mon, 2 Dec 2013 11:50:37 -0800
Subject: uio: we cannot mmap unaligned page contents

In commit 7314e613d5ff ("Fix a few incorrectly checked
[io_]remap_pfn_range() calls") the uio driver started more properly
checking the passed-in user mapping arguments against the size of the
actual uio driver data.

That in turn exposed that some driver authors apparently didn't realize
that mmap can only work on a page granularity, and had tried to use it
with smaller mappings, with the new size check catching that out.

So since it's not just the user mmap() arguments that can be confused,
make the uio mmap code also verify that the uio driver has the memory
allocated at page boundaries in order for mmap to work.  If the device
memory isn't properly aligned, we return

  [ENODEV]
    The fildes argument refers to a file whose type is not supported by mmap().

as per the open group documentation on mmap.

Reported-by: Holger Brunck <holger.brunck@keymile.com>
Acked-by: Greg KH <gregkh@linuxfoundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 drivers/uio/uio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c
index 67beb8444930..f7beb6eb40c7 100644
--- a/drivers/uio/uio.c
+++ b/drivers/uio/uio.c
@@ -653,6 +653,8 @@ static int uio_mmap_physical(struct vm_area_struct *vma)
 		return -EINVAL;
 	mem = idev->info->mem + mi;
 
+	if (mem->addr & ~PAGE_MASK)
+		return -ENODEV;
 	if (vma->vm_end - vma->vm_start > mem->size)
 		return -EINVAL;
 
-- 
cgit 


From aa1a6d6d74fff31060e08f6007037e6d807c8130 Mon Sep 17 00:00:00 2001
From: Peter Ujfalusi <peter.ujfalusi@ti.com>
Date: Thu, 28 Nov 2013 01:06:38 -0800
Subject: leds: pwm: Fix for deferred probe in DT booted mode

We need to make sure that the error code from devm_of_pwm_get() is the one
the module returns in case of failure.
Restructure the code to make this possible for DT booted case.
With this patch the driver can ask for deferred probing when the board is
booted with DT.
Fixes for example omap4-sdp board's keyboard backlight led.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Bryan Wu <cooloney@gmail.com>
---
 drivers/leds/leds-pwm.c | 53 ++++++++++++++++++++++++-------------------------
 1 file changed, 26 insertions(+), 27 deletions(-)

diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c
index 2848171b8576..b31d8e99c419 100644
--- a/drivers/leds/leds-pwm.c
+++ b/drivers/leds/leds-pwm.c
@@ -82,22 +82,12 @@ static inline size_t sizeof_pwm_leds_priv(int num_leds)
 		      (sizeof(struct led_pwm_data) * num_leds);
 }
 
-static struct led_pwm_priv *led_pwm_create_of(struct platform_device *pdev)
+static int led_pwm_create_of(struct platform_device *pdev,
+			     struct led_pwm_priv *priv)
 {
 	struct device_node *node = pdev->dev.of_node;
 	struct device_node *child;
-	struct led_pwm_priv *priv;
-	int count, ret;
-
-	/* count LEDs in this device, so we know how much to allocate */
-	count = of_get_child_count(node);
-	if (!count)
-		return NULL;
-
-	priv = devm_kzalloc(&pdev->dev, sizeof_pwm_leds_priv(count),
-			    GFP_KERNEL);
-	if (!priv)
-		return NULL;
+	int ret;
 
 	for_each_child_of_node(node, child) {
 		struct led_pwm_data *led_dat = &priv->leds[priv->num_leds];
@@ -109,6 +99,7 @@ static struct led_pwm_priv *led_pwm_create_of(struct platform_device *pdev)
 		if (IS_ERR(led_dat->pwm)) {
 			dev_err(&pdev->dev, "unable to request PWM for %s\n",
 				led_dat->cdev.name);
+			ret = PTR_ERR(led_dat->pwm);
 			goto err;
 		}
 		/* Get the period from PWM core when n*/
@@ -137,28 +128,36 @@ static struct led_pwm_priv *led_pwm_create_of(struct platform_device *pdev)
 		priv->num_leds++;
 	}
 
-	return priv;
+	return 0;
 err:
 	while (priv->num_leds--)
 		led_classdev_unregister(&priv->leds[priv->num_leds].cdev);
 
-	return NULL;
+	return ret;
 }
 
 static int led_pwm_probe(struct platform_device *pdev)
 {
 	struct led_pwm_platform_data *pdata = dev_get_platdata(&pdev->dev);
 	struct led_pwm_priv *priv;
-	int i, ret = 0;
+	int count, i;
+	int ret = 0;
+
+	if (pdata)
+		count = pdata->num_leds;
+	else
+		count = of_get_child_count(pdev->dev.of_node);
+
+	if (!count)
+		return -EINVAL;
 
-	if (pdata && pdata->num_leds) {
-		priv = devm_kzalloc(&pdev->dev,
-				    sizeof_pwm_leds_priv(pdata->num_leds),
-				    GFP_KERNEL);
-		if (!priv)
-			return -ENOMEM;
+	priv = devm_kzalloc(&pdev->dev, sizeof_pwm_leds_priv(count),
+			    GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
 
-		for (i = 0; i < pdata->num_leds; i++) {
+	if (pdata) {
+		for (i = 0; i < count; i++) {
 			struct led_pwm *cur_led = &pdata->leds[i];
 			struct led_pwm_data *led_dat = &priv->leds[i];
 
@@ -188,11 +187,11 @@ static int led_pwm_probe(struct platform_device *pdev)
 			if (ret < 0)
 				goto err;
 		}
-		priv->num_leds = pdata->num_leds;
+		priv->num_leds = count;
 	} else {
-		priv = led_pwm_create_of(pdev);
-		if (!priv)
-			return -ENODEV;
+		ret = led_pwm_create_of(pdev, priv);
+		if (ret)
+			return ret;
 	}
 
 	platform_set_drvdata(pdev, priv);
-- 
cgit 


From 09ae6345721afbb7cf3e0920209b140cbe7bff0d Mon Sep 17 00:00:00 2001
From: Christoph Paasch <christoph.paasch@uclouvain.be>
Date: Mon, 2 Dec 2013 00:05:20 +0100
Subject: ima: Do not free 'entry' before it is initialized

7bc5f447ce9d0 (ima: define new function ima_alloc_init_template() to
API) moved the initialization of 'entry' in ima_add_boot_aggregate() a
bit more below, after the if (ima_used_chip).

So, 'entry' is not initialized while being inside this if-block. So, we
should not attempt to free it.

Found by Coverity (CID: 1131971)

Fixes: 7bc5f447ce9d0 (ima: define new function ima_alloc_init_template() to API)
Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be>
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
---
 security/integrity/ima/ima_init.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/security/integrity/ima/ima_init.c b/security/integrity/ima/ima_init.c
index 15f34bd40abe..76b8e2c4fd38 100644
--- a/security/integrity/ima/ima_init.c
+++ b/security/integrity/ima/ima_init.c
@@ -63,7 +63,6 @@ static void __init ima_add_boot_aggregate(void)
 		result = ima_calc_boot_aggregate(&hash.hdr);
 		if (result < 0) {
 			audit_cause = "hashing_error";
-			kfree(entry);
 			goto err_out;
 		}
 	}
-- 
cgit 


From a7ed7c60e14df5b986f93549717235b882643e7e Mon Sep 17 00:00:00 2001
From: Roberto Sassu <roberto.sassu@polito.it>
Date: Mon, 2 Dec 2013 19:40:34 +0100
Subject: ima: properly free ima_template_entry structures

The new templates management mechanism records information associated
to an event into an array of 'ima_field_data' structures and makes it
available through the 'template_data' field of the 'ima_template_entry'
structure (the element of the measurements list created by IMA).

Since 'ima_field_data' contains dynamically allocated data (which length
varies depending on the data associated to a selected template field),
it is not enough to just free the memory reserved for a
'ima_template_entry' structure if something goes wrong.

This patch creates the new function ima_free_template_entry() which
walks the array of 'ima_field_data' structures, frees the memory
referenced by the 'data' pointer and finally the space reserved for
the 'ima_template_entry' structure. Further, it replaces existing kfree()
that have a pointer to an 'ima_template_entry' structure as argument
with calls to the new function.

Fixes: a71dc65: ima: switch to new template management mechanism
Signed-off-by: Roberto Sassu <roberto.sassu@polito.it>
Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
---
 security/integrity/ima/ima.h      |  1 +
 security/integrity/ima/ima_api.c  | 21 +++++++++++++++++----
 security/integrity/ima/ima_init.c |  2 +-
 3 files changed, 19 insertions(+), 5 deletions(-)

diff --git a/security/integrity/ima/ima.h b/security/integrity/ima/ima.h
index 9636e17c9f5d..0356e1d437ca 100644
--- a/security/integrity/ima/ima.h
+++ b/security/integrity/ima/ima.h
@@ -148,6 +148,7 @@ int ima_alloc_init_template(struct integrity_iint_cache *iint,
 			    int xattr_len, struct ima_template_entry **entry);
 int ima_store_template(struct ima_template_entry *entry, int violation,
 		       struct inode *inode, const unsigned char *filename);
+void ima_free_template_entry(struct ima_template_entry *entry);
 const char *ima_d_path(struct path *path, char **pathbuf);
 
 /* rbtree tree calls to lookup, insert, delete
diff --git a/security/integrity/ima/ima_api.c b/security/integrity/ima/ima_api.c
index 80374842fe0b..c38bbce8c6a6 100644
--- a/security/integrity/ima/ima_api.c
+++ b/security/integrity/ima/ima_api.c
@@ -21,6 +21,19 @@
 #include <crypto/hash_info.h>
 #include "ima.h"
 
+/*
+ * ima_free_template_entry - free an existing template entry
+ */
+void ima_free_template_entry(struct ima_template_entry *entry)
+{
+	int i;
+
+	for (i = 0; i < entry->template_desc->num_fields; i++)
+		kfree(entry->template_data[i].data);
+
+	kfree(entry);
+}
+
 /*
  * ima_alloc_init_template - create and initialize a new template entry
  */
@@ -37,6 +50,7 @@ int ima_alloc_init_template(struct integrity_iint_cache *iint,
 	if (!*entry)
 		return -ENOMEM;
 
+	(*entry)->template_desc = template_desc;
 	for (i = 0; i < template_desc->num_fields; i++) {
 		struct ima_template_field *field = template_desc->fields[i];
 		u32 len;
@@ -51,10 +65,9 @@ int ima_alloc_init_template(struct integrity_iint_cache *iint,
 		(*entry)->template_data_len += sizeof(len);
 		(*entry)->template_data_len += len;
 	}
-	(*entry)->template_desc = template_desc;
 	return 0;
 out:
-	kfree(*entry);
+	ima_free_template_entry(*entry);
 	*entry = NULL;
 	return result;
 }
@@ -134,7 +147,7 @@ void ima_add_violation(struct file *file, const unsigned char *filename,
 	}
 	result = ima_store_template(entry, violation, inode, filename);
 	if (result < 0)
-		kfree(entry);
+		ima_free_template_entry(entry);
 err_out:
 	integrity_audit_msg(AUDIT_INTEGRITY_PCR, inode, filename,
 			    op, cause, result, 0);
@@ -269,7 +282,7 @@ void ima_store_measurement(struct integrity_iint_cache *iint,
 	if (!result || result == -EEXIST)
 		iint->flags |= IMA_MEASURED;
 	if (result < 0)
-		kfree(entry);
+		ima_free_template_entry(entry);
 }
 
 void ima_audit_measurement(struct integrity_iint_cache *iint,
diff --git a/security/integrity/ima/ima_init.c b/security/integrity/ima/ima_init.c
index 76b8e2c4fd38..37122768554a 100644
--- a/security/integrity/ima/ima_init.c
+++ b/security/integrity/ima/ima_init.c
@@ -75,7 +75,7 @@ static void __init ima_add_boot_aggregate(void)
 	result = ima_store_template(entry, violation, NULL,
 				    boot_aggregate_name);
 	if (result < 0)
-		kfree(entry);
+		ima_free_template_entry(entry);
 	return;
 err_out:
 	integrity_audit_msg(AUDIT_INTEGRITY_PCR, NULL, boot_aggregate_name, op,
-- 
cgit 


From bdbff6bad8a81a90b1e3eb65be8892672cbde601 Mon Sep 17 00:00:00 2001
From: Kumar Gala <galak@codeaurora.org>
Date: Thu, 8 Aug 2013 10:51:15 -0500
Subject: MAINTAINERS: Add Kumar to Device Tree Binding maintainers group

I'm tossing my hat into the ring of maintainers/reviewers for device tree
bindings based on history of dealing with DT on embedded PPC and starting
work on ARM SoCs.

Signed-off-by: Kumar Gala <galak@codeaurora.org>
Acked-by: Pawel Moll <pawel.moll@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Cc: Ian Campbell <ian.campbell@citrix.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Olof Johansson <olof@lixom.net>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 MAINTAINERS | 1 +
 1 file changed, 1 insertion(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 8285ed4676b6..c4d89a7d2695 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6240,6 +6240,7 @@ M:	Pawel Moll <pawel.moll@arm.com>
 M:	Mark Rutland <mark.rutland@arm.com>
 M:	Stephen Warren <swarren@wwwdotorg.org>
 M:	Ian Campbell <ijc+devicetree@hellion.org.uk>
+M:	Kumar Gala <galak@codeaurora.org>
 L:	devicetree@vger.kernel.org
 S:	Maintained
 F:	Documentation/devicetree/
-- 
cgit 


From 2bfb66c279a491f92cd5e85f3bbc064295a344fd Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Tue, 8 Oct 2013 14:25:43 -0600
Subject: MAINTAINERS: remove swarren from DT bindings

I'm afraid I'm rather burned out w.r.t. DT bindings. As has probably
been evident, I don't have and haven't made the time to review many
recently. As such, remove myself from that MAINTAINERS entry.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 MAINTAINERS | 1 -
 1 file changed, 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index c4d89a7d2695..72433368132b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -6238,7 +6238,6 @@ OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS
 M:	Rob Herring <rob.herring@calxeda.com>
 M:	Pawel Moll <pawel.moll@arm.com>
 M:	Mark Rutland <mark.rutland@arm.com>
-M:	Stephen Warren <swarren@wwwdotorg.org>
 M:	Ian Campbell <ijc+devicetree@hellion.org.uk>
 M:	Kumar Gala <galak@codeaurora.org>
 L:	devicetree@vger.kernel.org
-- 
cgit 


From f04bda90392b729fea9b0420b2a87aa6f2abfcd9 Mon Sep 17 00:00:00 2001
From: Rob Herring <rob.herring@calxeda.com>
Date: Thu, 7 Nov 2013 20:58:16 -0600
Subject: dt-bindings: add ARMv8 PMU binding

Add missing "arm,armv8-pmuv3" compatible property for ARMv8 PMU.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Pawel Moll <pawel.moll@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Cc: Ian Campbell <ijc+devicetree@hellion.org.uk>
---
 Documentation/devicetree/bindings/arm/pmu.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/arm/pmu.txt b/Documentation/devicetree/bindings/arm/pmu.txt
index 343781b9f246..3e1e498fea96 100644
--- a/Documentation/devicetree/bindings/arm/pmu.txt
+++ b/Documentation/devicetree/bindings/arm/pmu.txt
@@ -7,6 +7,7 @@ representation in the device tree should be done as under:-
 Required properties:
 
 - compatible : should be one of
+	"arm,armv8-pmuv3"
 	"arm,cortex-a15-pmu"
 	"arm,cortex-a9-pmu"
 	"arm,cortex-a8-pmu"
-- 
cgit 


From f1e8e3811486b858bcc7190477bc6e4ea8f3488c Mon Sep 17 00:00:00 2001
From: Sricharan R <r.sricharan@ti.com>
Date: Fri, 8 Nov 2013 16:08:48 +0530
Subject: ARM: dts: doc: Document missing binding for omap5-mpu

The binding and support for omap5-mpu which has a cortex-a15
smp core, gic and integrated L2 cache has been existing for sometime.
So Documenting the missing binding here.

Cc: Benoit Cousson <bcousson@baylibre.com>
Signed-off-by: Sricharan R <r.sricharan@ti.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 Documentation/devicetree/bindings/arm/omap/mpu.txt | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/omap/mpu.txt b/Documentation/devicetree/bindings/arm/omap/mpu.txt
index 1a5a42ce21bb..83f405bde138 100644
--- a/Documentation/devicetree/bindings/arm/omap/mpu.txt
+++ b/Documentation/devicetree/bindings/arm/omap/mpu.txt
@@ -7,10 +7,18 @@ The MPU contain CPUs, GIC, L2 cache and a local PRCM.
 Required properties:
 - compatible : Should be "ti,omap3-mpu" for OMAP3
                Should be "ti,omap4-mpu" for OMAP4
+	       Should be "ti,omap5-mpu" for OMAP5
 - ti,hwmods: "mpu"
 
 Examples:
 
+- For an OMAP5 SMP system:
+
+mpu {
+    compatible = "ti,omap5-mpu";
+    ti,hwmods = "mpu"
+};
+
 - For an OMAP4 SMP system:
 
 mpu {
-- 
cgit 


From 21ea02686164a71f1d464835c602c3fe2a0f3d61 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@freescale.com>
Date: Mon, 18 Nov 2013 11:28:07 -0200
Subject: Documentation: net: fsl-fec.txt: Add phy-supply entry

phy-supply is an optional property of the fec driver, so add it to the binding
documentation.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 Documentation/devicetree/bindings/net/fsl-fec.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/fsl-fec.txt b/Documentation/devicetree/bindings/net/fsl-fec.txt
index d53639221403..845ff848d895 100644
--- a/Documentation/devicetree/bindings/net/fsl-fec.txt
+++ b/Documentation/devicetree/bindings/net/fsl-fec.txt
@@ -15,6 +15,7 @@ Optional properties:
   only if property "phy-reset-gpios" is available.  Missing the property
   will have the duration be 1 millisecond.  Numbers greater than 1000 are
   invalid and 1 millisecond will be used instead.
+- phy-supply: regulator that powers the Ethernet PHY.
 
 Example:
 
@@ -25,4 +26,5 @@ ethernet@83fec000 {
 	phy-mode = "mii";
 	phy-reset-gpios = <&gpio2 14 0>; /* GPIO2_14 */
 	local-mac-address = [00 04 9F 01 1B B9];
+	phy-supply = <&reg_fec_supply>;
 };
-- 
cgit 


From 53d6b36020c76b7d77514ec08394a75cb9deab08 Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@gmail.com>
Date: Mon, 18 Nov 2013 11:11:19 +0100
Subject: of: Add vendor prefix for LG Corporation

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index ce95ed1c6d3e..e986fbe26465 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -38,6 +38,7 @@ ibm	International Business Machines (IBM)
 idt	Integrated Device Technologies, Inc.
 img	Imagination Technologies Ltd.
 intercontrol	Inter Control Group
+lg	LG Corporation
 linux	Linux-specific binding
 lsi	LSI Corp. (LSI Logic)
 marvell	Marvell Technology Group Ltd.
-- 
cgit 


From cdbea09819fc5f2ad84f1ffa218999632f0857a7 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Date: Mon, 18 Nov 2013 12:46:12 +0100
Subject: clk: exynos: Fix typos in DT bindings documentation

s/comptible/compatible/

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 Documentation/devicetree/bindings/clock/exynos4-clock.txt    | 2 +-
 Documentation/devicetree/bindings/clock/exynos5250-clock.txt | 2 +-
 Documentation/devicetree/bindings/clock/exynos5420-clock.txt | 2 +-
 Documentation/devicetree/bindings/clock/exynos5440-clock.txt | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/clock/exynos4-clock.txt b/Documentation/devicetree/bindings/clock/exynos4-clock.txt
index c6bf8a6c8f52..a2ac2d9ac71a 100644
--- a/Documentation/devicetree/bindings/clock/exynos4-clock.txt
+++ b/Documentation/devicetree/bindings/clock/exynos4-clock.txt
@@ -6,7 +6,7 @@ SoC's in the Exynos4 family.
 
 Required Properties:
 
-- comptible: should be one of the following.
+- compatible: should be one of the following.
   - "samsung,exynos4210-clock" - controller compatible with Exynos4210 SoC.
   - "samsung,exynos4412-clock" - controller compatible with Exynos4412 SoC.
 
diff --git a/Documentation/devicetree/bindings/clock/exynos5250-clock.txt b/Documentation/devicetree/bindings/clock/exynos5250-clock.txt
index 24765c146e31..46f5c791ea0d 100644
--- a/Documentation/devicetree/bindings/clock/exynos5250-clock.txt
+++ b/Documentation/devicetree/bindings/clock/exynos5250-clock.txt
@@ -5,7 +5,7 @@ controllers within the Exynos5250 SoC.
 
 Required Properties:
 
-- comptible: should be one of the following.
+- compatible: should be one of the following.
   - "samsung,exynos5250-clock" - controller compatible with Exynos5250 SoC.
 
 - reg: physical base address of the controller and length of memory mapped
diff --git a/Documentation/devicetree/bindings/clock/exynos5420-clock.txt b/Documentation/devicetree/bindings/clock/exynos5420-clock.txt
index 32aa34ecad36..458f34789e5d 100644
--- a/Documentation/devicetree/bindings/clock/exynos5420-clock.txt
+++ b/Documentation/devicetree/bindings/clock/exynos5420-clock.txt
@@ -5,7 +5,7 @@ controllers within the Exynos5420 SoC.
 
 Required Properties:
 
-- comptible: should be one of the following.
+- compatible: should be one of the following.
   - "samsung,exynos5420-clock" - controller compatible with Exynos5420 SoC.
 
 - reg: physical base address of the controller and length of memory mapped
diff --git a/Documentation/devicetree/bindings/clock/exynos5440-clock.txt b/Documentation/devicetree/bindings/clock/exynos5440-clock.txt
index 4499e9966bc9..9955dc9c7d96 100644
--- a/Documentation/devicetree/bindings/clock/exynos5440-clock.txt
+++ b/Documentation/devicetree/bindings/clock/exynos5440-clock.txt
@@ -5,7 +5,7 @@ controllers within the Exynos5440 SoC.
 
 Required Properties:
 
-- comptible: should be "samsung,exynos5440-clock".
+- compatible: should be "samsung,exynos5440-clock".
 
 - reg: physical base address of the controller and length of memory mapped
   region.
-- 
cgit 


From dd622d2506a63f0d9cf7b3beaad12f012308a39f Mon Sep 17 00:00:00 2001
From: Wei Ni <wni@nvidia.com>
Date: Wed, 13 Nov 2013 18:59:09 +0800
Subject: of: add vendor prefix for GMT

Adding Global Mixed-mode Technology Inc. to the list
of devicetree vendor prefixes.

Signed-off-by: Wei Ni <wni@nvidia.com>
Acked-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 Documentation/devicetree/bindings/vendor-prefixes.txt | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index e986fbe26465..edbb8d88c85e 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt
@@ -32,6 +32,7 @@ est	ESTeem Wireless Modems
 fsl	Freescale Semiconductor
 GEFanuc	GE Fanuc Intelligent Platforms Embedded Systems, Inc.
 gef	GE Fanuc Intelligent Platforms Embedded Systems, Inc.
+gmt	Global Mixed-mode Technology, Inc.
 hisilicon	Hisilicon Limited.
 hp	Hewlett Packard
 ibm	International Business Machines (IBM)
-- 
cgit 


From 1675088f8bc3f955e9bd31418a6b3319487f27bf Mon Sep 17 00:00:00 2001
From: Chanwoo Choi <cw00.choi@samsung.com>
Date: Wed, 23 Oct 2013 10:44:50 +0900
Subject: hwmon: ntc_thermistor: Fix typo (pullup-uV -> pullup-uv)

This patch fix typo of property name from 'pullup-uV' to 'pullup-uv'.
The ntc_thermistor.c use 'pullup-uv' when parsing dt data.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt
index 47ada1dff216..5d49f2b37f68 100644
--- a/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt
+++ b/Documentation/devicetree/bindings/arm/samsung/exynos-adc.txt
@@ -49,7 +49,7 @@ adc@12D10000 {
 	/* NTC thermistor is a hwmon device */
 	ncp15wb473@0 {
 		compatible = "ntc,ncp15wb473";
-		pullup-uV = <1800000>;
+		pullup-uv = <1800000>;
 		pullup-ohm = <47000>;
 		pulldown-ohm = <0>;
 		io-channels = <&adc 4>;
-- 
cgit 


From 72d944ec7eeb195db96942d5a9f907a312e23313 Mon Sep 17 00:00:00 2001
From: Stephen Warren <swarren@nvidia.com>
Date: Mon, 25 Nov 2013 15:37:55 -0700
Subject: ARM: tegra: delete nvidia,tegra20-spi.txt binding

This binding shouldn't exist; Tegra20 has two forms of SPI controller
that are documented separately in nvidia,tegra20-sflash.txt and
nvidia,tegra20-slink.txt.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 Documentation/devicetree/bindings/spi/nvidia,tegra20-spi.txt | 5 -----
 1 file changed, 5 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/spi/nvidia,tegra20-spi.txt

diff --git a/Documentation/devicetree/bindings/spi/nvidia,tegra20-spi.txt b/Documentation/devicetree/bindings/spi/nvidia,tegra20-spi.txt
deleted file mode 100644
index 6b9e51896693..000000000000
--- a/Documentation/devicetree/bindings/spi/nvidia,tegra20-spi.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-NVIDIA Tegra 2 SPI device
-
-Required properties:
-- compatible : should be "nvidia,tegra20-spi".
-- gpios : should specify GPIOs used for chipselect.
-- 
cgit 


From 2c0e641a963d073d60cb63c24614c642b6f64b21 Mon Sep 17 00:00:00 2001
From: Gerhard Sittig <gsi@denx.de>
Date: Thu, 21 Nov 2013 09:41:44 +0100
Subject: dt: binding: reword PowerPC 8xxx GPIO documentation

re-format and re-word the device tree binding documentation for MPC8xxx
and compatibles, reference the common document for interrupt controllers
and remove outdated duplicate SoC specific information

Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Pawel Moll <Pawel.Moll@arm.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: <devicetree@vger.kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Gerhard Sittig <gsi@denx.de>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
---
 .../devicetree/bindings/gpio/8xxx_gpio.txt         | 66 +++++++++++++---------
 1 file changed, 40 insertions(+), 26 deletions(-)

diff --git a/Documentation/devicetree/bindings/gpio/8xxx_gpio.txt b/Documentation/devicetree/bindings/gpio/8xxx_gpio.txt
index b0019eb5330e..798cfc9d3839 100644
--- a/Documentation/devicetree/bindings/gpio/8xxx_gpio.txt
+++ b/Documentation/devicetree/bindings/gpio/8xxx_gpio.txt
@@ -5,16 +5,42 @@ This is for the non-QE/CPM/GUTs GPIO controllers as found on
 
 Every GPIO controller node must have #gpio-cells property defined,
 this information will be used to translate gpio-specifiers.
+See bindings/gpio/gpio.txt for details of how to specify GPIO
+information for devices.
+
+The GPIO module usually is connected to the SoC's internal interrupt
+controller, see bindings/interrupt-controller/interrupts.txt (the
+interrupt client nodes section) for details how to specify this GPIO
+module's interrupt.
+
+The GPIO module may serve as another interrupt controller (cascaded to
+the SoC's internal interrupt controller).  See the interrupt controller
+nodes section in bindings/interrupt-controller/interrupts.txt for
+details.
 
 Required properties:
-- compatible : "fsl,<CHIP>-gpio" followed by "fsl,mpc8349-gpio" for
-  83xx, "fsl,mpc8572-gpio" for 85xx and "fsl,mpc8610-gpio" for 86xx.
-- #gpio-cells : Should be two. The first cell is the pin number and the
-  second cell is used to specify optional parameters (currently unused).
- - interrupts : Interrupt mapping for GPIO IRQ.
- - interrupt-parent : Phandle for the interrupt controller that
-   services interrupts for this device.
-- gpio-controller : Marks the port as GPIO controller.
+- compatible:		"fsl,<chip>-gpio" followed by "fsl,mpc8349-gpio"
+			for 83xx, "fsl,mpc8572-gpio" for 85xx, or
+			"fsl,mpc8610-gpio" for 86xx.
+- #gpio-cells:		Should be two. The first cell is the pin number
+			and the second cell is used to specify optional
+			parameters (currently unused).
+- interrupt-parent:	Phandle for the interrupt controller that
+			services interrupts for this device.
+- interrupts:		Interrupt mapping for GPIO IRQ.
+- gpio-controller:	Marks the port as GPIO controller.
+
+Optional properties:
+- interrupt-controller:	Empty boolean property which marks the GPIO
+			module as an IRQ controller.
+- #interrupt-cells:	Should be two.  Defines the number of integer
+			cells required to specify an interrupt within
+			this interrupt controller.  The first cell
+			defines the pin number, the second cell
+			defines additional flags (trigger type,
+			trigger polarity).  Note that the available
+			set of trigger conditions supported by the
+			GPIO module depends on the actual SoC.
 
 Example of gpio-controller nodes for a MPC8347 SoC:
 
@@ -22,39 +48,27 @@ Example of gpio-controller nodes for a MPC8347 SoC:
 		#gpio-cells = <2>;
 		compatible = "fsl,mpc8347-gpio", "fsl,mpc8349-gpio";
 		reg = <0xc00 0x100>;
-		interrupts = <74 0x8>;
 		interrupt-parent = <&ipic>;
+		interrupts = <74 0x8>;
 		gpio-controller;
+		interrupt-controller;
+		#interrupt-cells = <2>;
 	};
 
 	gpio2: gpio-controller@d00 {
 		#gpio-cells = <2>;
 		compatible = "fsl,mpc8347-gpio", "fsl,mpc8349-gpio";
 		reg = <0xd00 0x100>;
-		interrupts = <75 0x8>;
 		interrupt-parent = <&ipic>;
+		interrupts = <75 0x8>;
 		gpio-controller;
 	};
 
-See booting-without-of.txt for details of how to specify GPIO
-information for devices.
-
-To use GPIO pins as interrupt sources for peripherals, specify the
-GPIO controller as the interrupt parent and define GPIO number +
-trigger mode using the interrupts property, which is defined like
-this:
-
-interrupts = <number trigger>, where:
- - number: GPIO pin (0..31)
- - trigger: trigger mode:
-	2 = trigger on falling edge
-	3 = trigger on both edges
-
-Example of device using this is:
+Example of a peripheral using the GPIO module as an IRQ controller:
 
 	funkyfpga@0 {
 		compatible = "funky-fpga";
 		...
-		interrupts = <4 3>;
 		interrupt-parent = <&gpio1>;
+		interrupts = <4 3>;
 	};
-- 
cgit 


From d59915d0655c5864b514f21daaeac98c047875dc Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Mon, 2 Dec 2013 18:06:20 +0800
Subject: ALSA: hda - Fix headset mic input after muted internal mic
 (Dell/Realtek)

By trial and error, I found this patch could work around an issue
where the headset mic would stop working if you switch between the
internal mic and the headset mic, and the internal mic was muted.

It still takes a second or two before the headset mic actually starts
working, but still better than nothing.

Information update from Kailang:
  The verb was ADC digital mute(bit 6 default 1).
  Switch internal mic and headset mic will run alc_headset_mode_default.
  The coef index 0x11 will set to 0x0041.
  Because headset mode was fixed type. It doesn't need to run
  alc_determine_headset_type.
  So, the value still keep 0x0041. ADC was muted.

BugLink: https://bugs.launchpad.net/bugs/1256840
Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 9ca83001fc37..1ad079cc0452 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3287,6 +3287,7 @@ static void alc_headset_mode_ctia(struct hda_codec *codec)
 		alc_write_coef_idx(codec, 0x18, 0x7388);
 		break;
 	case 0x10ec0668:
+		alc_write_coef_idx(codec, 0x11, 0x0001);
 		alc_write_coef_idx(codec, 0x15, 0x0d60);
 		alc_write_coef_idx(codec, 0xc3, 0x0000);
 		break;
@@ -3315,6 +3316,7 @@ static void alc_headset_mode_omtp(struct hda_codec *codec)
 		alc_write_coef_idx(codec, 0x18, 0x7388);
 		break;
 	case 0x10ec0668:
+		alc_write_coef_idx(codec, 0x11, 0x0001);
 		alc_write_coef_idx(codec, 0x15, 0x0d50);
 		alc_write_coef_idx(codec, 0xc3, 0x0000);
 		break;
-- 
cgit 


From 0202e99c6910b9908808485c6858e8d475d052dd Mon Sep 17 00:00:00 2001
From: Kailang Yang <kailang@realtek.com>
Date: Mon, 2 Dec 2013 15:20:15 +0800
Subject: ALSA: hda/realtek - Independent of model for HP

Create single model for HP.
The headset jack module was difference between other chrome book.
It need to manual control Mic jack detect.

Chrome OS loaded driver by models. Remove old assigned fixup table from
ALC269 fixup list entry.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 38 ++++++++++++++++++++++++++++----------
 1 file changed, 28 insertions(+), 10 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 1ad079cc0452..ba2b982b47ea 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3602,11 +3602,6 @@ static void alc283_hp_automute_hook(struct hda_codec *codec,
 			    vref);
 }
 
-static void alc283_chromebook_caps(struct hda_codec *codec)
-{
-	snd_hda_override_wcaps(codec, 0x03, 0);
-}
-
 static void alc283_fixup_chromebook(struct hda_codec *codec,
 				    const struct hda_fixup *fix, int action)
 {
@@ -3615,19 +3610,34 @@ static void alc283_fixup_chromebook(struct hda_codec *codec,
 
 	switch (action) {
 	case HDA_FIXUP_ACT_PRE_PROBE:
-		alc283_chromebook_caps(codec);
+		snd_hda_override_wcaps(codec, 0x03, 0);
 		/* Disable AA-loopback as it causes white noise */
 		spec->gen.mixer_nid = 0;
 		spec->gen.hp_automute_hook = alc283_hp_automute_hook;
 		break;
+	case HDA_FIXUP_ACT_INIT:
+		/* Enable Line1 input control by verb */
+		val = alc_read_coef_idx(codec, 0x1a);
+		alc_write_coef_idx(codec, 0x1a, val | (1 << 4));
+		break;
+	}
+}
+
+static void alc283_fixup_sense_combo_jack(struct hda_codec *codec,
+				    const struct hda_fixup *fix, int action)
+{
+	struct alc_spec *spec = codec->spec;
+	int val;
+
+	switch (action) {
+	case HDA_FIXUP_ACT_PRE_PROBE:
+		spec->gen.hp_automute_hook = alc283_hp_automute_hook;
+		break;
 	case HDA_FIXUP_ACT_INIT:
 		/* MIC2-VREF control */
 		/* Set to manual mode */
 		val = alc_read_coef_idx(codec, 0x06);
 		alc_write_coef_idx(codec, 0x06, val & ~0x000c);
-		/* Enable Line1 input control by verb */
-		val = alc_read_coef_idx(codec, 0x1a);
-		alc_write_coef_idx(codec, 0x1a, val | (1 << 4));
 		break;
 	}
 }
@@ -3823,6 +3833,7 @@ enum {
 	ALC269_FIXUP_LIMIT_INT_MIC_BOOST_MUTE_LED,
 	ALC269VB_FIXUP_ORDISSIMO_EVE2,
 	ALC283_FIXUP_CHROME_BOOK,
+	ALC283_FIXUP_SENSE_COMBO_JACK,
 	ALC282_FIXUP_ASUS_TX300,
 	ALC283_FIXUP_INT_MIC,
 	ALC290_FIXUP_MONO_SPEAKERS,
@@ -4122,6 +4133,12 @@ static const struct hda_fixup alc269_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc283_fixup_chromebook,
 	},
+	[ALC283_FIXUP_SENSE_COMBO_JACK] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc283_fixup_sense_combo_jack,
+		.chained = true,
+		.chain_id = ALC283_FIXUP_CHROME_BOOK,
+	},
 	[ALC282_FIXUP_ASUS_TX300] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc282_fixup_asus_tx300,
@@ -4213,7 +4230,6 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x103c, 0x1973, "HP Pavilion", ALC269_FIXUP_HP_MUTE_LED_MIC1),
 	SND_PCI_QUIRK(0x103c, 0x1983, "HP Pavilion", ALC269_FIXUP_HP_MUTE_LED_MIC1),
 	SND_PCI_QUIRK(0x103c, 0x218b, "HP", ALC269_FIXUP_LIMIT_INT_MIC_BOOST_MUTE_LED),
-	SND_PCI_QUIRK(0x103c, 0x21ed, "HP Falco Chromebook", ALC283_FIXUP_CHROME_BOOK),
 	SND_PCI_QUIRK_VENDOR(0x103c, "HP", ALC269_FIXUP_HP_MUTE_LED),
 	SND_PCI_QUIRK(0x1043, 0x103f, "ASUS TX300", ALC282_FIXUP_ASUS_TX300),
 	SND_PCI_QUIRK(0x1043, 0x106d, "Asus K53BE", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
@@ -4321,6 +4337,8 @@ static const struct hda_model_fixup alc269_fixup_models[] = {
 	{.id = ALC269_FIXUP_HP_GPIO_LED, .name = "hp-gpio-led"},
 	{.id = ALC269_FIXUP_DELL1_MIC_NO_PRESENCE, .name = "dell-headset-multi"},
 	{.id = ALC269_FIXUP_DELL2_MIC_NO_PRESENCE, .name = "dell-headset-dock"},
+	{.id = ALC283_FIXUP_CHROME_BOOK, .name = "alc283-chrome"},
+	{.id = ALC283_FIXUP_SENSE_COMBO_JACK, .name = "alc283-sense-combo"},
 	{}
 };
 
-- 
cgit 


From 5d27619498ab468e8c7e67844c640ad0915e8d85 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Thu, 28 Nov 2013 16:20:03 +0100
Subject: sh-pfc: r8a7740: Fix pin bias setup

When computing the pin configuration register offset the bias setup code
erroneously compares the pin number range with the loop index instead of
the pin number. Fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/sh-pfc/pfc-r8a7740.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/sh-pfc/pfc-r8a7740.c b/drivers/pinctrl/sh-pfc/pfc-r8a7740.c
index 009174d07767..bc5eb453a45c 100644
--- a/drivers/pinctrl/sh-pfc/pfc-r8a7740.c
+++ b/drivers/pinctrl/sh-pfc/pfc-r8a7740.c
@@ -3720,7 +3720,7 @@ static void __iomem *r8a7740_pinmux_portcr(struct sh_pfc *pfc, unsigned int pin)
 		const struct r8a7740_portcr_group *group =
 			&r8a7740_portcr_offsets[i];
 
-		if (i <= group->end_pin)
+		if (pin <= group->end_pin)
 			return pfc->window->virt + group->offset + pin;
 	}
 
-- 
cgit 


From 71493de7e55af589dbe76ce78ae2b762f9cc6f27 Mon Sep 17 00:00:00 2001
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Date: Thu, 28 Nov 2013 16:20:04 +0100
Subject: sh-pfc: sh7372: Fix pin bias setup

When computing the pin configuration register offset the bias setup code
erroneously compares the pin number range with the loop index instead of
the pin number. Fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/pinctrl/sh-pfc/pfc-sh7372.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/sh-pfc/pfc-sh7372.c b/drivers/pinctrl/sh-pfc/pfc-sh7372.c
index 70b522d34821..cc097b693820 100644
--- a/drivers/pinctrl/sh-pfc/pfc-sh7372.c
+++ b/drivers/pinctrl/sh-pfc/pfc-sh7372.c
@@ -2584,7 +2584,7 @@ static void __iomem *sh7372_pinmux_portcr(struct sh_pfc *pfc, unsigned int pin)
 		const struct sh7372_portcr_group *group =
 			&sh7372_portcr_offsets[i];
 
-		if (i <= group->end_pin)
+		if (pin <= group->end_pin)
 			return pfc->window->virt + group->offset + pin;
 	}
 
-- 
cgit 


From c9a9972b6f093e4e2f81f58892a7523df894144d Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Mon, 25 Nov 2013 18:34:24 +0900
Subject: gpiolib: add missing declarations

Add declaration of 'struct of_phandle_args' to avoid the following
warning:

  In file included from arch/arm/mach-tegra/board-paz00.c:21:0:
  include/linux/gpio/driver.h:102:17: warning: 'struct of_phandle_args' declared inside parameter list
  include/linux/gpio/driver.h:102:17: warning: its scope is only this definition or declaration, which is probably not what you want

Also proactively add other definitions/includes that could be missing
in other contexts.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reported-by: Stephen Warren <swarren@wwwdotorg.org>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 include/linux/gpio/driver.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h
index 82eac610ce1a..3ea2cf6b0e6c 100644
--- a/include/linux/gpio/driver.h
+++ b/include/linux/gpio/driver.h
@@ -2,9 +2,12 @@
 #define __LINUX_GPIO_DRIVER_H
 
 #include <linux/types.h>
+#include <linux/module.h>
 
 struct device;
 struct gpio_desc;
+struct of_phandle_args;
+struct device_node;
 struct seq_file;
 
 /**
-- 
cgit 


From 7cc67b9c74d9728ba6cbf868d7bcd2cc24de0880 Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Sat, 23 Nov 2013 14:55:52 +0900
Subject: gpiolib: fix lookup of platform-mapped GPIOs

A typo resulted in GPIO lookup failing unconditionally.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Reported-by: Stephen Warren <swarren@wwwdotorg.org>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpiolib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index ac53a9593662..b73c39f99858 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -2368,7 +2368,7 @@ static struct gpio_desc *gpiod_find(struct device *dev, const char *con_id,
 				continue;
 			}
 
-			if (chip->ngpio >= p->chip_hwnum) {
+			if (chip->ngpio <= p->chip_hwnum) {
 				dev_warn(dev, "GPIO chip %s has %d GPIOs\n",
 					 chip->label, chip->ngpio);
 				continue;
-- 
cgit 


From 56a39aac593a7e855bed357b1ce43eeb7a99e7e2 Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Sat, 23 Nov 2013 19:32:20 +0900
Subject: Documentation: gpiolib: add 00-INDEX file

Give a short overview of the various GPIO documentation files.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 Documentation/gpio/00-INDEX | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 Documentation/gpio/00-INDEX

diff --git a/Documentation/gpio/00-INDEX b/Documentation/gpio/00-INDEX
new file mode 100644
index 000000000000..1de43ae46ae6
--- /dev/null
+++ b/Documentation/gpio/00-INDEX
@@ -0,0 +1,14 @@
+00-INDEX
+	- This file
+gpio.txt
+	- Introduction to GPIOs and their kernel interfaces
+consumer.txt
+	- How to obtain and use GPIOs in a driver
+driver.txt
+	- How to write a GPIO driver
+board.txt
+	- How to assign GPIOs to a consumer device and a function
+sysfs.txt
+	- Information about the GPIO sysfs interface
+gpio-legacy.txt
+	- Historical documentation of the deprecated GPIO integer interface
-- 
cgit 


From 35c5d7fdc4eed4409f9193bf7651315849cc6aa3 Mon Sep 17 00:00:00 2001
From: Alexandre Courbot <acourbot@nvidia.com>
Date: Sat, 23 Nov 2013 19:34:50 +0900
Subject: gpiolib: use platform GPIO mappings as fallback

For platforms that use device tree or ACPI as the standard way to look
GPIOs up, allow the platform-defined GPIO mappings to be used as a
fallback. This may be useful for platforms that need extra GPIOs mappings
not defined by the firmware.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpiolib.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index b73c39f99858..dbddace5df42 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -2418,7 +2418,7 @@ struct gpio_desc *__must_check gpiod_get_index(struct device *dev,
 					       const char *con_id,
 					       unsigned int idx)
 {
-	struct gpio_desc *desc;
+	struct gpio_desc *desc = NULL;
 	int status;
 	enum gpio_lookup_flags flags = 0;
 
@@ -2431,9 +2431,19 @@ struct gpio_desc *__must_check gpiod_get_index(struct device *dev,
 	} else if (IS_ENABLED(CONFIG_ACPI) && dev && ACPI_HANDLE(dev)) {
 		dev_dbg(dev, "using ACPI for GPIO lookup\n");
 		desc = acpi_find_gpio(dev, con_id, idx, &flags);
-	} else {
+	}
+
+	/*
+	 * Either we are not using DT or ACPI, or their lookup did not return
+	 * a result. In that case, use platform lookup as a fallback.
+	 */
+	if (!desc || IS_ERR(desc)) {
+		struct gpio_desc *pdesc;
 		dev_dbg(dev, "using lookup tables for GPIO lookup");
-		desc = gpiod_find(dev, con_id, idx, &flags);
+		pdesc = gpiod_find(dev, con_id, idx, &flags);
+		/* If used as fallback, do not replace the previous error */
+		if (!IS_ERR(pdesc) || !desc)
+			desc = pdesc;
 	}
 
 	if (IS_ERR(desc)) {
-- 
cgit 


From 1aeef303b5d9e243c41d5b80f8bb059366514a10 Mon Sep 17 00:00:00 2001
From: Liu Gang <Gang.Liu@freescale.com>
Date: Fri, 22 Nov 2013 16:12:40 +0800
Subject: powerpc/gpio: Fix the wrong GPIO input data on MPC8572/MPC8536

For MPC8572/MPC8536, the status of GPIOs defined as output
cannot be determined by reading GPDAT register, so the code
use shadow data register instead. But the code may give the
wrong status of GPIOs defined as input under some scenarios:

1. If some pins were configured as inputs and were asserted
high before booting the kernel, the shadow data has been
initialized with those pin values.
2. Some pins have been configured as output first and have
been set to the high value, then reconfigured as input.

The above cases will make the shadow data for those input
pins to be set to high. Then reading the pin status will
always return high even if the actual pin status is low.

The code should eliminate the effects of the shadow data to
the input pins, and the status of those pins should be
read directly from GPDAT.

Cc: stable@vger.kernel.org
Acked-by: Scott Wood <scottwood@freescale.com>
Acked-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Liu Gang <Gang.Liu@freescale.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-mpc8xxx.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpio/gpio-mpc8xxx.c b/drivers/gpio/gpio-mpc8xxx.c
index 914e859e3eda..d7d6d72eba33 100644
--- a/drivers/gpio/gpio-mpc8xxx.c
+++ b/drivers/gpio/gpio-mpc8xxx.c
@@ -70,10 +70,14 @@ static int mpc8572_gpio_get(struct gpio_chip *gc, unsigned int gpio)
 	u32 val;
 	struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc);
 	struct mpc8xxx_gpio_chip *mpc8xxx_gc = to_mpc8xxx_gpio_chip(mm);
+	u32 out_mask, out_shadow;
 
-	val = in_be32(mm->regs + GPIO_DAT) & ~in_be32(mm->regs + GPIO_DIR);
+	out_mask = in_be32(mm->regs + GPIO_DIR);
 
-	return (val | mpc8xxx_gc->data) & mpc8xxx_gpio2mask(gpio);
+	val = in_be32(mm->regs + GPIO_DAT) & ~out_mask;
+	out_shadow = mpc8xxx_gc->data & out_mask;
+
+	return (val | out_shadow) & mpc8xxx_gpio2mask(gpio);
 }
 
 static int mpc8xxx_gpio_get(struct gpio_chip *gc, unsigned int gpio)
-- 
cgit 


From 351cfe0fe810588bb1cc75fb4f1c1d1d01914b82 Mon Sep 17 00:00:00 2001
From: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Date: Fri, 29 Nov 2013 15:47:34 +0200
Subject: gpiolib: change a warning to debug message when failing to get gpio

It's the drivers responsibility to react on failure to get
the gpio descriptors and not the frameworks. Since there are
some common peripherals that may or may not have certain
pins connected to gpio lines, depending on the platform,
printing the warning there may end up generating useless bug
reports.

Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpiolib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index dbddace5df42..85f772c0b26a 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -2447,7 +2447,7 @@ struct gpio_desc *__must_check gpiod_get_index(struct device *dev,
 	}
 
 	if (IS_ERR(desc)) {
-		dev_warn(dev, "lookup for GPIO %s failed\n", con_id);
+		dev_dbg(dev, "lookup for GPIO %s failed\n", con_id);
 		return desc;
 	}
 
-- 
cgit 


From 2167e2399dc5e69c62db56d933e9c8cbe107620a Mon Sep 17 00:00:00 2001
From: Bjørn Mork <bjorn@mork.no>
Date: Tue, 3 Dec 2013 12:14:32 +0100
Subject: cpufreq: fix garbage kobjects on errors during suspend/resume
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This is effectively a revert of commit 5302c3fb2e62 ("cpufreq: Perform
light-weight init/teardown during suspend/resume"), which enabled
suspend/resume optimizations leaving the sysfs files in place.

Errors during suspend/resume are not handled properly, leaving
dead sysfs attributes in case of failures.  There are are number of
functions with special code for the "frozen" case, and all these
need to also have special error handling.

The problem is easy to demonstrate by making cpufreq_driver->init()
or cpufreq_driver->get() fail during resume.

The code is too complex for a simple fix, with split code paths
in multiple blocks within a number of functions.  It is therefore
best to revert the patch enabling this code until the error handling
is in place.

Examples of problems resulting from resume errors:

WARNING: CPU: 0 PID: 6055 at fs/sysfs/file.c:343 sysfs_open_file+0x77/0x212()
missing sysfs attribute operations for kobject: (null)
Modules linked in: [stripped as irrelevant]
CPU: 0 PID: 6055 Comm: grep Tainted: G      D      3.13.0-rc2 #153
Hardware name: LENOVO 2776LEG/2776LEG, BIOS 6EET55WW (3.15 ) 12/19/2011
 0000000000000009 ffff8802327ebb78 ffffffff81380b0e 0000000000000006
 ffff8802327ebbc8 ffff8802327ebbb8 ffffffff81038635 0000000000000000
 ffffffff811823c7 ffff88021a19e688 ffff88021a19e688 ffff8802302f9310
Call Trace:
 [<ffffffff81380b0e>] dump_stack+0x55/0x76
 [<ffffffff81038635>] warn_slowpath_common+0x7c/0x96
 [<ffffffff811823c7>] ? sysfs_open_file+0x77/0x212
 [<ffffffff810386e3>] warn_slowpath_fmt+0x41/0x43
 [<ffffffff81182dec>] ? sysfs_get_active+0x6b/0x82
 [<ffffffff81182382>] ? sysfs_open_file+0x32/0x212
 [<ffffffff811823c7>] sysfs_open_file+0x77/0x212
 [<ffffffff81182350>] ? sysfs_schedule_callback+0x1ac/0x1ac
 [<ffffffff81122562>] do_dentry_open+0x17c/0x257
 [<ffffffff8112267e>] finish_open+0x41/0x4f
 [<ffffffff81130225>] do_last+0x80c/0x9ba
 [<ffffffff8112dbbd>] ? inode_permission+0x40/0x42
 [<ffffffff81130606>] path_openat+0x233/0x4a1
 [<ffffffff81130b7e>] do_filp_open+0x35/0x85
 [<ffffffff8113b787>] ? __alloc_fd+0x172/0x184
 [<ffffffff811232ea>] do_sys_open+0x6b/0xfa
 [<ffffffff811233a7>] SyS_openat+0xf/0x11
 [<ffffffff8138c812>] system_call_fastpath+0x16/0x1b

The failure to restore cpufreq devices on cancelled hibernation is
not a new bug. It is caused by the ACPI _PPC call failing unless the
hibernate is completed. This makes the acpi_cpufreq driver fail its
init.

Previously, the cpufreq device could be restored by offlining the
cpu temporarily.  And as a complete hibernation cycle would do this,
it would be automatically restored most of the time.  But after
commit 5302c3fb2e62 the leftover sysfs attributes will block any
device add action.  Therefore offlining and onlining CPU 1 will no
longer restore the cpufreq object, and a complete suspend/resume
cycle will replace it with garbage.

Fixes: 5302c3fb2e62 ("cpufreq: Perform light-weight init/teardown during suspend/resume")
Cc: 3.12+ <stable@vger.kernel.org> # 3.12+
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpufreq/cpufreq.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 606224a8abc2..81e9d4412db8 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -2119,9 +2119,6 @@ static int cpufreq_cpu_callback(struct notifier_block *nfb,
 	dev = get_cpu_device(cpu);
 	if (dev) {
 
-		if (action & CPU_TASKS_FROZEN)
-			frozen = true;
-
 		switch (action & ~CPU_TASKS_FROZEN) {
 		case CPU_ONLINE:
 			__cpufreq_add_dev(dev, NULL, frozen);
-- 
cgit 


From 95f19f658ce177387345b51bd48fed7b9cd7d4e8 Mon Sep 17 00:00:00 2001
From: Amit Pundir <amit.pundir@linaro.org>
Date: Fri, 15 Nov 2013 12:56:31 +0530
Subject: epoll: drop EPOLLWAKEUP if PM_SLEEP is disabled

Drop EPOLLWAKEUP from epoll events mask if CONFIG_PM_SLEEP is disabled.

Signed-off-by: Amit Pundir <amit.pundir@linaro.org>
Cc: John Stultz <john.stultz@linaro.org>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 fs/eventpoll.c                 |  3 +--
 include/uapi/linux/eventpoll.h | 13 ++++++++++++-
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index 79b65c3b9e87..8b5e2584c840 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1852,8 +1852,7 @@ SYSCALL_DEFINE4(epoll_ctl, int, epfd, int, op, int, fd,
 		goto error_tgt_fput;
 
 	/* Check if EPOLLWAKEUP is allowed */
-	if ((epds.events & EPOLLWAKEUP) && !capable(CAP_BLOCK_SUSPEND))
-		epds.events &= ~EPOLLWAKEUP;
+	ep_take_care_of_epollwakeup(&epds);
 
 	/*
 	 * We have to check that the file structure underneath the file descriptor
diff --git a/include/uapi/linux/eventpoll.h b/include/uapi/linux/eventpoll.h
index 2c267bcbb85c..bc81fb2e1f0e 100644
--- a/include/uapi/linux/eventpoll.h
+++ b/include/uapi/linux/eventpoll.h
@@ -61,5 +61,16 @@ struct epoll_event {
 	__u64 data;
 } EPOLL_PACKED;
 
-
+#ifdef CONFIG_PM_SLEEP
+static inline void ep_take_care_of_epollwakeup(struct epoll_event *epev)
+{
+	if ((epev->events & EPOLLWAKEUP) && !capable(CAP_BLOCK_SUSPEND))
+		epev->events &= ~EPOLLWAKEUP;
+}
+#else
+static inline void ep_take_care_of_epollwakeup(struct epoll_event *epev)
+{
+	epev->events &= ~EPOLLWAKEUP;
+}
+#endif
 #endif /* _UAPI_LINUX_EVENTPOLL_H */
-- 
cgit 


From 22a08538dca5c0630226f1c0c58dccd12e463d22 Mon Sep 17 00:00:00 2001
From: Vijaya Mohan Guvva <vmohan@brocade.com>
Date: Thu, 21 Nov 2013 01:37:49 -0800
Subject: [SCSI] bfa: Fix crash when symb name set for offline vport

This patch fixes a crash when tried setting symbolic name for an offline
vport through sysfs. Crash is due to uninitialized pointer lport->ns,
which gets initialized only on linkup (port online).

Signed-off-by: Vijaya Mohan Guvva <vmohan@brocade.com>
Cc: stable@vger.kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
 drivers/scsi/bfa/bfa_fcs.h       |  1 +
 drivers/scsi/bfa/bfa_fcs_lport.c | 14 +++++++++++---
 drivers/scsi/bfa/bfad_attr.c     |  7 ++-----
 3 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/drivers/scsi/bfa/bfa_fcs.h b/drivers/scsi/bfa/bfa_fcs.h
index 94d5d0102f7d..42bcb970445a 100644
--- a/drivers/scsi/bfa/bfa_fcs.h
+++ b/drivers/scsi/bfa/bfa_fcs.h
@@ -296,6 +296,7 @@ wwn_t bfa_fcs_lport_get_rport(struct bfa_fcs_lport_s *port, wwn_t wwn,
 struct bfa_fcs_lport_s *bfa_fcs_lookup_port(struct bfa_fcs_s *fcs,
 					    u16 vf_id, wwn_t lpwwn);
 
+void bfa_fcs_lport_set_symname(struct bfa_fcs_lport_s *port, char *symname);
 void bfa_fcs_lport_get_info(struct bfa_fcs_lport_s *port,
 			    struct bfa_lport_info_s *port_info);
 void bfa_fcs_lport_get_attr(struct bfa_fcs_lport_s *port,
diff --git a/drivers/scsi/bfa/bfa_fcs_lport.c b/drivers/scsi/bfa/bfa_fcs_lport.c
index 2f61a5af3658..f5e4e61a0fd7 100644
--- a/drivers/scsi/bfa/bfa_fcs_lport.c
+++ b/drivers/scsi/bfa/bfa_fcs_lport.c
@@ -1097,6 +1097,17 @@ bfa_fcs_lport_init(struct bfa_fcs_lport_s *lport,
 	bfa_sm_send_event(lport, BFA_FCS_PORT_SM_CREATE);
 }
 
+void
+bfa_fcs_lport_set_symname(struct bfa_fcs_lport_s *port,
+				char *symname)
+{
+	strcpy(port->port_cfg.sym_name.symname, symname);
+
+	if (bfa_sm_cmp_state(port, bfa_fcs_lport_sm_online))
+		bfa_fcs_lport_ns_util_send_rspn_id(
+			BFA_FCS_GET_NS_FROM_PORT(port), NULL);
+}
+
 /*
  *  fcs_lport_api
  */
@@ -5140,9 +5151,6 @@ bfa_fcs_lport_ns_util_send_rspn_id(void *cbarg, struct bfa_fcxp_s *fcxp_alloced)
 	u8 *psymbl = &symbl[0];
 	int len;
 
-	if (!bfa_sm_cmp_state(port, bfa_fcs_lport_sm_online))
-		return;
-
 	/* Avoid sending RSPN in the following states. */
 	if (bfa_sm_cmp_state(ns, bfa_fcs_lport_ns_sm_offline) ||
 	    bfa_sm_cmp_state(ns, bfa_fcs_lport_ns_sm_plogi_sending) ||
diff --git a/drivers/scsi/bfa/bfad_attr.c b/drivers/scsi/bfa/bfad_attr.c
index e9a681d31223..40be670a1cbc 100644
--- a/drivers/scsi/bfa/bfad_attr.c
+++ b/drivers/scsi/bfa/bfad_attr.c
@@ -593,11 +593,8 @@ bfad_im_vport_set_symbolic_name(struct fc_vport *fc_vport)
 		return;
 
 	spin_lock_irqsave(&bfad->bfad_lock, flags);
-	if (strlen(sym_name) > 0) {
-		strcpy(fcs_vport->lport.port_cfg.sym_name.symname, sym_name);
-		bfa_fcs_lport_ns_util_send_rspn_id(
-			BFA_FCS_GET_NS_FROM_PORT((&fcs_vport->lport)), NULL);
-	}
+	if (strlen(sym_name) > 0)
+		bfa_fcs_lport_set_symname(&fcs_vport->lport, sym_name);
 	spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 }
 
-- 
cgit 


From b4af6ef99a60c5b56df137d7accd81ba1ee1254e Mon Sep 17 00:00:00 2001
From: Bo Shen <voice.shen@atmel.com>
Date: Tue, 3 Dec 2013 18:04:54 +0800
Subject: ASoC: wm8731: fix dsp mode configuration

According to WM8731 "PD, Rev 4.9 October 2012" datasheet, when it
works in DSP mode A, LRP = 1, while works in DSP mode B, LRP = 0.
So, fix LRP for DSP mode as the datesheet specification.

Signed-off-by: Bo Shen <voice.shen@atmel.com>
Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org
---
 sound/soc/codecs/wm8731.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/wm8731.c b/sound/soc/codecs/wm8731.c
index 456bb8c6d759..bc7472c968e3 100644
--- a/sound/soc/codecs/wm8731.c
+++ b/sound/soc/codecs/wm8731.c
@@ -447,10 +447,10 @@ static int wm8731_set_dai_fmt(struct snd_soc_dai *codec_dai,
 		iface |= 0x0001;
 		break;
 	case SND_SOC_DAIFMT_DSP_A:
-		iface |= 0x0003;
+		iface |= 0x0013;
 		break;
 	case SND_SOC_DAIFMT_DSP_B:
-		iface |= 0x0013;
+		iface |= 0x0003;
 		break;
 	default:
 		return -EINVAL;
-- 
cgit 


From 0dfee674b33fd87be4879a2b2d33a2fc22449814 Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Mon, 2 Dec 2013 00:15:29 -0800
Subject: ARM: multi_v7_defconfig: enable network for BeagleBone Black

BeagleBone Black uses the TI CPSW ethernet controller, enable it in the
multi_v7_defconfig for testing coverage purposes.

Signed-off-by: Olof Johansson <olof@lixom.net>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: stable@vger.kernel.org # v3.12
---
 arch/arm/configs/multi_v7_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index 4a5903e04827..d30507d3d1a3 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -69,6 +69,7 @@ CONFIG_KS8851=y
 CONFIG_SMSC911X=y
 CONFIG_STMMAC_ETH=y
 CONFIG_MDIO_SUN4I=y
+CONFIG_TI_CPSW=y
 CONFIG_KEYBOARD_SPEAR=y
 CONFIG_SERIO_AMBAKMI=y
 CONFIG_SERIAL_8250=y
-- 
cgit 


From 610ffd58dbbccaf7a6e0fe85c5a345200466adc2 Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Mon, 2 Dec 2013 18:40:50 -0800
Subject: ARM: sunxi_defconfig: enable NFS, TMPFS, PRINTK_TIME and nfsroot
 support

This enables a few more options on the sunxi defconfigs such that I can
use nfsroot to boot them (there is no local storage support yet). It
also enables PRINTK_TIME and tmpfs since it's a common distro requirement.

Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/configs/sunxi_defconfig | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm/configs/sunxi_defconfig b/arch/arm/configs/sunxi_defconfig
index d57a85badb5e..3e2259b60236 100644
--- a/arch/arm/configs/sunxi_defconfig
+++ b/arch/arm/configs/sunxi_defconfig
@@ -12,6 +12,9 @@ CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
 CONFIG_INET=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_BOOTP=y
 # CONFIG_INET_XFRM_MODE_TRANSPORT is not set
 # CONFIG_INET_XFRM_MODE_TUNNEL is not set
 # CONFIG_INET_XFRM_MODE_BEET is not set
@@ -58,4 +61,8 @@ CONFIG_LEDS_TRIGGER_HEARTBEAT=y
 CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
 CONFIG_COMMON_CLK_DEBUG=y
 # CONFIG_IOMMU_SUPPORT is not set
+CONFIG_TMPFS=y
+CONFIG_NFS_FS=y
+CONFIG_ROOT_NFS=y
 CONFIG_NLS=y
+CONFIG_PRINTK_TIME=y
-- 
cgit 


From f39918eec72c841037f16475867dac1a2b0bfc01 Mon Sep 17 00:00:00 2001
From: Olof Johansson <olof@lixom.net>
Date: Tue, 3 Dec 2013 10:21:49 -0800
Subject: ARM: multi_v7_defconfig: enable SDHCI_BCM_KONA and
 MMC_BLOCK_MINORS=16

Enable MMC/SD on the Broadcom mobile platforms, and increase the block
minors from the default 8 to 16 (since the Broadcom board by default
has root on the 8th partition).

Signed-off-by: Olof Johansson <olof@lixom.net>
Cc: stable@vger.kernel.org # v3.12
---
 arch/arm/configs/multi_v7_defconfig | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index d30507d3d1a3..c1df4e9db140 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -134,12 +134,14 @@ CONFIG_USB_GPIO_VBUS=y
 CONFIG_USB_ISP1301=y
 CONFIG_USB_MXS_PHY=y
 CONFIG_MMC=y
+CONFIG_MMC_BLOCK_MINORS=16
 CONFIG_MMC_ARMMMCI=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_PLTFM=y
 CONFIG_MMC_SDHCI_ESDHC_IMX=y
 CONFIG_MMC_SDHCI_TEGRA=y
 CONFIG_MMC_SDHCI_SPEAR=y
+CONFIG_MMC_SDHCI_BCM_KONA=y
 CONFIG_MMC_OMAP=y
 CONFIG_MMC_OMAP_HS=y
 CONFIG_EDAC=y
-- 
cgit 


From 813e8e3d6aaa0b511126cce15c16a931afffe768 Mon Sep 17 00:00:00 2001
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Date: Tue, 3 Dec 2013 10:59:58 -0500
Subject: cpuidle: Check for dev before deregistering it.

If not, we could end up in the unfortunate situation where
we dereference a NULL pointer b/c we have cpuidle disabled.

This is the case when booting under Xen (which uses the
ACPI P/C states but disables the CPU idle driver) - and can
be easily reproduced when booting with cpuidle.off=1.

BUG: unable to handle kernel NULL pointer dereference at           (null)
IP: [<ffffffff8156db4a>] cpuidle_unregister_device+0x2a/0x90
.. snip..
Call Trace:
 [<ffffffff813b15b4>] acpi_processor_power_exit+0x3c/0x5c
 [<ffffffff813af0a9>] acpi_processor_stop+0x61/0xb6
 [<ffffffff814215bf>] __device_release_driver+0fffff81421653>] device_release_driver+0x23/0x30
 [<ffffffff81420ed8>] bus_remove_device+0x108/0x180
 [<ffffffff8141d9d9>] device_del+0x129/0x1c0
 [<ffffffff813cb4b0>] ? unregister_xenbus_watch+0x1f0/0x1f0
 [<ffffffff8141da8e>] device_unregister+0x1e/0x60
 [<ffffffff814243e9>] unregister_cpu+0x39/0x60
 [<ffffffff81019e03>] arch_unregister_cpu+0x23/0x30
 [<ffffffff813c3c51>] handle_vcpu_hotplug_event+0xc1/0xe0
 [<ffffffff813cb4f5>] xenwatch_thread+0x45/0x120
 [<ffffffff810af010>] ? abort_exclusive_wait+0xb0/0xb0
 [<ffffffff8108ec42>] kthread+0xd2/0xf0
 [<ffffffff8108eb70>] ? kthread_create_on_node+0x180/0x180
 [<ffffffff816ce17c>] ret_from_fork+0x7c/0xb0
 [<ffffffff8108eb70>] ? kthread_create_on_node+0x180/0x180

This problem also appears in 3.12 and could be a candidate for backport.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: All applicable <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/cpuidle/cpuidle.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 2a991e468f78..a55e68f2cfc8 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -400,7 +400,7 @@ EXPORT_SYMBOL_GPL(cpuidle_register_device);
  */
 void cpuidle_unregister_device(struct cpuidle_device *dev)
 {
-	if (dev->registered == 0)
+	if (!dev || dev->registered == 0)
 		return;
 
 	cpuidle_pause_and_lock();
-- 
cgit 


From 959a35f13eb785f982d79b1aaa75872d05c821da Mon Sep 17 00:00:00 2001
From: Jeff Moyer <jmoyer@redhat.com>
Date: Tue, 3 Dec 2013 14:23:00 -0700
Subject: blk-mq: fix dereference of rq->mq_ctx if allocation fails

If __GFP_WAIT isn't set and we fail allocating, when we go
to drop the reference on the ctx, we will attempt to dereference
the NULL rq. Fix that.

Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-mq.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index cdc629cf075b..70fd6f996600 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -202,10 +202,12 @@ static struct request *blk_mq_alloc_request_pinned(struct request_queue *q,
 		if (rq) {
 			blk_mq_rq_ctx_init(q, ctx, rq, rw);
 			break;
-		} else if (!(gfp & __GFP_WAIT))
-			break;
+		}
 
 		blk_mq_put_ctx(ctx);
+		if (!(gfp & __GFP_WAIT))
+			break;
+
 		__blk_mq_run_hw_queue(hctx);
 		blk_mq_wait_for_tags(hctx->tags);
 	} while (1);
@@ -222,7 +224,8 @@ struct request *blk_mq_alloc_request(struct request_queue *q, int rw,
 		return NULL;
 
 	rq = blk_mq_alloc_request_pinned(q, rw, gfp, reserved);
-	blk_mq_put_ctx(rq->mq_ctx);
+	if (rq)
+		blk_mq_put_ctx(rq->mq_ctx);
 	return rq;
 }
 
@@ -235,7 +238,8 @@ struct request *blk_mq_alloc_reserved_request(struct request_queue *q, int rw,
 		return NULL;
 
 	rq = blk_mq_alloc_request_pinned(q, rw, gfp, true);
-	blk_mq_put_ctx(rq->mq_ctx);
+	if (rq)
+		blk_mq_put_ctx(rq->mq_ctx);
 	return rq;
 }
 EXPORT_SYMBOL(blk_mq_alloc_reserved_request);
-- 
cgit 


From 725dd7eb170af813407ee45409590941a5ac626e Mon Sep 17 00:00:00 2001
From: Dinh Nguyen <dinguyen@altera.com>
Date: Wed, 17 Jul 2013 16:19:09 -0500
Subject: arm: socfpga: Enable ARM_TWD for socfpga

Update Kconfig to enable TWD.

Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
Reviewed-by: Pavel Machek <pavel@denx.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/mach-socfpga/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/mach-socfpga/Kconfig b/arch/arm/mach-socfpga/Kconfig
index 037100a1563a..aee77f06f887 100644
--- a/arch/arm/mach-socfpga/Kconfig
+++ b/arch/arm/mach-socfpga/Kconfig
@@ -10,6 +10,7 @@ config ARCH_SOCFPGA
 	select GENERIC_CLOCKEVENTS
 	select GPIO_PL061 if GPIOLIB
 	select HAVE_ARM_SCU
+	select HAVE_ARM_TWD if SMP
 	select HAVE_SMP
 	select MFD_SYSCON
 	select SPARSE_IRQ
-- 
cgit 


From a5c6e87a7b224bdbf57875a9da8f340f5a6abc5a Mon Sep 17 00:00:00 2001
From: Dinh Nguyen <dinguyen@altera.com>
Date: Tue, 3 Dec 2013 14:32:10 -0600
Subject: arm: dts: socfpga: Change some clocks of gate-clk type to perip-clk

Some of the clocks that were designated gate-clk do not have a gate, so
change those clocks to be of periph-clk type.

Signed-off-by: Dinh Nguyen <dinguyen@altera.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
---
 arch/arm/boot/dts/socfpga.dtsi | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index 6d09b8d42fdd..f936476c2753 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -245,14 +245,14 @@
 
 					mpu_periph_clk: mpu_periph_clk {
 						#clock-cells = <0>;
-						compatible = "altr,socfpga-gate-clk";
+						compatible = "altr,socfpga-perip-clk";
 						clocks = <&mpuclk>;
 						fixed-divider = <4>;
 					};
 
 					mpu_l2_ram_clk: mpu_l2_ram_clk {
 						#clock-cells = <0>;
-						compatible = "altr,socfpga-gate-clk";
+						compatible = "altr,socfpga-perip-clk";
 						clocks = <&mpuclk>;
 						fixed-divider = <2>;
 					};
@@ -266,8 +266,9 @@
 
 					l3_main_clk: l3_main_clk {
 						#clock-cells = <0>;
-						compatible = "altr,socfpga-gate-clk";
+						compatible = "altr,socfpga-perip-clk";
 						clocks = <&mainclk>;
+						fixed-divider = <1>;
 					};
 
 					l3_mp_clk: l3_mp_clk {
-- 
cgit 


From a16ab68ee96005382738c706fd06bdd874d9185b Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Tue, 3 Dec 2013 23:02:26 +0100
Subject: parisc: update 64bit defconfigs and use SIL680 instead of SIIMAGE
 driver

Signed-off-by: Helge Deller <deller@gmx.de>
---
 arch/parisc/configs/c3000_defconfig         |  2 +-
 arch/parisc/configs/c8000_defconfig         | 35 +++-----------------------
 arch/parisc/configs/generic-64bit_defconfig | 38 +++--------------------------
 3 files changed, 8 insertions(+), 67 deletions(-)

diff --git a/arch/parisc/configs/c3000_defconfig b/arch/parisc/configs/c3000_defconfig
index ec1b014952b6..acacd348df89 100644
--- a/arch/parisc/configs/c3000_defconfig
+++ b/arch/parisc/configs/c3000_defconfig
@@ -50,7 +50,7 @@ CONFIG_BLK_DEV_CRYPTOLOOP=m
 CONFIG_IDE=y
 CONFIG_BLK_DEV_IDECD=y
 CONFIG_BLK_DEV_NS87415=y
-CONFIG_BLK_DEV_SIIMAGE=m
+CONFIG_PATA_SIL680=m
 CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_CHR_DEV_ST=y
diff --git a/arch/parisc/configs/c8000_defconfig b/arch/parisc/configs/c8000_defconfig
index bb81d026b7b3..8249ac9d9cfc 100644
--- a/arch/parisc/configs/c8000_defconfig
+++ b/arch/parisc/configs/c8000_defconfig
@@ -80,8 +80,6 @@ CONFIG_IDE=y
 CONFIG_BLK_DEV_IDECD=y
 CONFIG_BLK_DEV_PLATFORM=y
 CONFIG_BLK_DEV_GENERIC=y
-CONFIG_BLK_DEV_SIIMAGE=y
-CONFIG_SCSI=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_CHR_DEV_ST=m
 CONFIG_BLK_DEV_SR=m
@@ -93,6 +91,8 @@ CONFIG_SCSI_FC_ATTRS=y
 CONFIG_SCSI_SAS_LIBSAS=m
 CONFIG_ISCSI_TCP=m
 CONFIG_ISCSI_BOOT_SYSFS=m
+CONFIG_ATA=y
+CONFIG_PATA_SIL680=y
 CONFIG_FUSION=y
 CONFIG_FUSION_SPI=y
 CONFIG_FUSION_SAS=y
@@ -113,9 +113,8 @@ CONFIG_INPUT_FF_MEMLESS=m
 # CONFIG_KEYBOARD_ATKBD is not set
 # CONFIG_KEYBOARD_HIL_OLD is not set
 # CONFIG_KEYBOARD_HIL is not set
-CONFIG_MOUSE_PS2=m
+# CONFIG_MOUSE_PS2 is not set
 CONFIG_INPUT_MISC=y
-CONFIG_INPUT_CM109=m
 CONFIG_SERIO_SERPORT=m
 CONFIG_SERIO_PARKBD=m
 CONFIG_SERIO_GSCPS2=m
@@ -166,34 +165,6 @@ CONFIG_SND_VERBOSE_PRINTK=y
 CONFIG_SND_AD1889=m
 # CONFIG_SND_USB is not set
 # CONFIG_SND_GSC is not set
-CONFIG_HID_A4TECH=m
-CONFIG_HID_APPLE=m
-CONFIG_HID_BELKIN=m
-CONFIG_HID_CHERRY=m
-CONFIG_HID_CHICONY=m
-CONFIG_HID_CYPRESS=m
-CONFIG_HID_DRAGONRISE=m
-CONFIG_HID_EZKEY=m
-CONFIG_HID_KYE=m
-CONFIG_HID_GYRATION=m
-CONFIG_HID_TWINHAN=m
-CONFIG_HID_KENSINGTON=m
-CONFIG_HID_LOGITECH=m
-CONFIG_HID_LOGITECH_DJ=m
-CONFIG_HID_MICROSOFT=m
-CONFIG_HID_MONTEREY=m
-CONFIG_HID_NTRIG=m
-CONFIG_HID_ORTEK=m
-CONFIG_HID_PANTHERLORD=m
-CONFIG_HID_PETALYNX=m
-CONFIG_HID_SAMSUNG=m
-CONFIG_HID_SUNPLUS=m
-CONFIG_HID_GREENASIA=m
-CONFIG_HID_SMARTJOYPLUS=m
-CONFIG_HID_TOPSEED=m
-CONFIG_HID_THRUSTMASTER=m
-CONFIG_HID_ZEROPLUS=m
-CONFIG_USB_HID=m
 CONFIG_USB=y
 CONFIG_USB_OHCI_HCD=y
 CONFIG_USB_STORAGE=y
diff --git a/arch/parisc/configs/generic-64bit_defconfig b/arch/parisc/configs/generic-64bit_defconfig
index 1413b8d7f5d3..28c1b5de044e 100644
--- a/arch/parisc/configs/generic-64bit_defconfig
+++ b/arch/parisc/configs/generic-64bit_defconfig
@@ -67,7 +67,6 @@ CONFIG_IDE_GD=m
 CONFIG_IDE_GD_ATAPI=y
 CONFIG_BLK_DEV_IDECD=m
 CONFIG_BLK_DEV_NS87415=y
-CONFIG_BLK_DEV_SIIMAGE=y
 # CONFIG_SCSI_PROC_FS is not set
 CONFIG_BLK_DEV_SD=y
 CONFIG_BLK_DEV_SR=y
@@ -81,6 +80,7 @@ CONFIG_SCSI_ZALON=y
 CONFIG_SCSI_QLA_ISCSI=m
 CONFIG_SCSI_DH=y
 CONFIG_ATA=y
+CONFIG_PATA_SIL680=y
 CONFIG_ATA_GENERIC=y
 CONFIG_MD=y
 CONFIG_MD_LINEAR=m
@@ -161,7 +161,7 @@ CONFIG_SLIP_MODE_SLIP6=y
 CONFIG_INPUT_EVDEV=y
 # CONFIG_KEYBOARD_HIL_OLD is not set
 # CONFIG_KEYBOARD_HIL is not set
-# CONFIG_INPUT_MOUSE is not set
+# CONFIG_MOUSE_PS2 is not set
 CONFIG_INPUT_MISC=y
 CONFIG_SERIO_SERPORT=m
 # CONFIG_HP_SDC is not set
@@ -215,32 +215,7 @@ CONFIG_BACKLIGHT_LCD_SUPPORT=y
 CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y
 CONFIG_LOGO=y
 # CONFIG_LOGO_LINUX_MONO is not set
-CONFIG_HID=m
 CONFIG_HIDRAW=y
-CONFIG_HID_DRAGONRISE=m
-CONFIG_DRAGONRISE_FF=y
-CONFIG_HID_KYE=m
-CONFIG_HID_GYRATION=m
-CONFIG_HID_TWINHAN=m
-CONFIG_LOGITECH_FF=y
-CONFIG_LOGIRUMBLEPAD2_FF=y
-CONFIG_HID_NTRIG=m
-CONFIG_HID_PANTHERLORD=m
-CONFIG_PANTHERLORD_FF=y
-CONFIG_HID_PETALYNX=m
-CONFIG_HID_SAMSUNG=m
-CONFIG_HID_SONY=m
-CONFIG_HID_SUNPLUS=m
-CONFIG_HID_GREENASIA=m
-CONFIG_GREENASIA_FF=y
-CONFIG_HID_SMARTJOYPLUS=m
-CONFIG_SMARTJOYPLUS_FF=y
-CONFIG_HID_TOPSEED=m
-CONFIG_HID_THRUSTMASTER=m
-CONFIG_THRUSTMASTER_FF=y
-CONFIG_HID_ZEROPLUS=m
-CONFIG_ZEROPLUS_FF=y
-CONFIG_USB_HID=m
 CONFIG_HID_PID=y
 CONFIG_USB_HIDDEV=y
 CONFIG_USB=y
@@ -250,13 +225,8 @@ CONFIG_USB_DYNAMIC_MINORS=y
 CONFIG_USB_MON=m
 CONFIG_USB_WUSB_CBAF=m
 CONFIG_USB_XHCI_HCD=m
-CONFIG_USB_EHCI_HCD=m
-CONFIG_USB_OHCI_HCD=m
-CONFIG_USB_R8A66597_HCD=m
-CONFIG_USB_ACM=m
-CONFIG_USB_PRINTER=m
-CONFIG_USB_WDM=m
-CONFIG_USB_TMC=m
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_OHCI_HCD=y
 CONFIG_NEW_LEDS=y
 CONFIG_LEDS_CLASS=y
 CONFIG_LEDS_TRIGGERS=y
-- 
cgit 


From 5551a34e5aeab868f8d37f70d8754868921b4ee5 Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@linux.intel.com>
Date: Wed, 20 Nov 2013 13:31:49 -0800
Subject: x86-64, build: Always pass in -mno-sse

Always pass in the -mno-sse argument, regardless if
-preferred-stack-boundary is supported.  We never want to generate SSE
instructions in the kernel unless we *really* know what we're doing.

According to H. J. Lu, any version of gcc new enough that we support
it at all should handle the -mno-sse option, so just add it
unconditionally.

Reported-by: Kevin B. Smith <kevin.b.smith@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: H. J. Lu <hjl.tools@gmail.com>
Link: http://lkml.kernel.org/n/tip-j21wzqv790q834n7yc6g80j1@git.kernel.org
Cc: <stable@vger.kernel.org> # build fix only
---
 arch/x86/Makefile | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 41250fb33985..eda00f9be0cf 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -31,6 +31,9 @@ ifeq ($(CONFIG_X86_32),y)
 
         KBUILD_CFLAGS += -msoft-float -mregparm=3 -freg-struct-return
 
+        # Don't autogenerate SSE instructions
+	KBUILD_CFLAGS += -mno-sse
+
         # Never want PIC in a 32-bit kernel, prevent breakage with GCC built
         # with nonstandard options
         KBUILD_CFLAGS += -fno-pic
@@ -57,8 +60,11 @@ else
         KBUILD_AFLAGS += -m64
         KBUILD_CFLAGS += -m64
 
+        # Don't autogenerate SSE instructions
+	KBUILD_CFLAGS += -mno-sse
+
 	# Use -mpreferred-stack-boundary=3 if supported.
-	KBUILD_CFLAGS += $(call cc-option,-mno-sse -mpreferred-stack-boundary=3)
+	KBUILD_CFLAGS += $(call cc-option,-mpreferred-stack-boundary=3)
 
         # FIXME - should be integrated in Makefile.cpu (Makefile_32.cpu)
         cflags-$(CONFIG_MK8) += $(call cc-option,-march=k8)
-- 
cgit 


From c0778e2534b81be6b85b5ee07c0e15ff774f7136 Mon Sep 17 00:00:00 2001
From: Chris Mason <clm@fb.com>
Date: Tue, 3 Dec 2013 20:16:03 -0500
Subject: Btrfs: update the MAINTAINERS file

Josef and I have new email addresses

Signed-off-by: Chris Mason <clm@fb.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
---
 MAINTAINERS | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index ffcaf975bed7..db89b5df5779 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1921,7 +1921,8 @@ S:	Maintained
 F:	drivers/gpio/gpio-bt8xx.c
 
 BTRFS FILE SYSTEM
-M:	Chris Mason <chris.mason@fusionio.com>
+M:	Chris Mason <clm@fb.com>
+M:	Josef Bacik <jbacik@fb.com>
 L:	linux-btrfs@vger.kernel.org
 W:	http://btrfs.wiki.kernel.org/
 Q:	http://patchwork.kernel.org/project/linux-btrfs/list/
-- 
cgit 


From eb21aad9fdf7882801923431ccbc9226e2c3be17 Mon Sep 17 00:00:00 2001
From: Kailang Yang <kailang@realtek.com>
Date: Wed, 4 Dec 2013 15:06:14 +0800
Subject: ALSA: hda/realtek - remove hp_automute_hook from
 alc283_fixup_chromebook

I forgot to remove the hp_automute_hook from alc283_fixup_chromebook.
It doesn't need this for other chrome os machine.

Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index ba2b982b47ea..e327e630cac4 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -3613,7 +3613,6 @@ static void alc283_fixup_chromebook(struct hda_codec *codec,
 		snd_hda_override_wcaps(codec, 0x03, 0);
 		/* Disable AA-loopback as it causes white noise */
 		spec->gen.mixer_nid = 0;
-		spec->gen.hp_automute_hook = alc283_hp_automute_hook;
 		break;
 	case HDA_FIXUP_ACT_INIT:
 		/* Enable Line1 input control by verb */
-- 
cgit 


From 20ce902978a70ab51ad9ed645f636805f3ff2b0d Mon Sep 17 00:00:00 2001
From: David Henningsson <david.henningsson@canonical.com>
Date: Wed, 4 Dec 2013 10:19:41 +0800
Subject: ALSA: hda - Fix missing ELD info when using jackpoll_ms parameter

In the case of using jackpoll_ms instead of unsol events, the jack
was correctly detected, but ELD info was not refreshed on plug-in.

And without ELD info, no proper restriction of pcm, which can in turn
break sound output on some devices.

Signed-off-by: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_hdmi.c | 27 +++++++++++++++------------
 1 file changed, 15 insertions(+), 12 deletions(-)

diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 08407bed093e..c4a66ef6cf6f 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -1142,32 +1142,34 @@ static void hdmi_setup_audio_infoframe(struct hda_codec *codec,
 
 static bool hdmi_present_sense(struct hdmi_spec_per_pin *per_pin, int repoll);
 
-static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
+static void jack_callback(struct hda_codec *codec, struct hda_jack_tbl *jack)
 {
 	struct hdmi_spec *spec = codec->spec;
+	int pin_idx = pin_nid_to_pin_index(spec, jack->nid);
+	if (pin_idx < 0)
+		return;
+
+	if (hdmi_present_sense(get_pin(spec, pin_idx), 1))
+		snd_hda_jack_report_sync(codec);
+}
+
+static void hdmi_intrinsic_event(struct hda_codec *codec, unsigned int res)
+{
 	int tag = res >> AC_UNSOL_RES_TAG_SHIFT;
-	int pin_nid;
-	int pin_idx;
 	struct hda_jack_tbl *jack;
 	int dev_entry = (res & AC_UNSOL_RES_DE) >> AC_UNSOL_RES_DE_SHIFT;
 
 	jack = snd_hda_jack_tbl_get_from_tag(codec, tag);
 	if (!jack)
 		return;
-	pin_nid = jack->nid;
 	jack->jack_dirty = 1;
 
 	_snd_printd(SND_PR_VERBOSE,
 		"HDMI hot plug event: Codec=%d Pin=%d Device=%d Inactive=%d Presence_Detect=%d ELD_Valid=%d\n",
-		codec->addr, pin_nid, dev_entry, !!(res & AC_UNSOL_RES_IA),
+		codec->addr, jack->nid, dev_entry, !!(res & AC_UNSOL_RES_IA),
 		!!(res & AC_UNSOL_RES_PD), !!(res & AC_UNSOL_RES_ELDV));
 
-	pin_idx = pin_nid_to_pin_index(spec, pin_nid);
-	if (pin_idx < 0)
-		return;
-
-	if (hdmi_present_sense(get_pin(spec, pin_idx), 1))
-		snd_hda_jack_report_sync(codec);
+	jack_callback(codec, jack);
 }
 
 static void hdmi_non_intrinsic_event(struct hda_codec *codec, unsigned int res)
@@ -2095,7 +2097,8 @@ static int generic_hdmi_init(struct hda_codec *codec)
 		hda_nid_t pin_nid = per_pin->pin_nid;
 
 		hdmi_init_pin(codec, pin_nid);
-		snd_hda_jack_detect_enable(codec, pin_nid, pin_nid);
+		snd_hda_jack_detect_enable_callback(codec, pin_nid, pin_nid,
+			codec->jackpoll_interval > 0 ? jack_callback : NULL);
 	}
 	return 0;
 }
-- 
cgit 


From 5a0973f33b4e6a10227b3d285ff2b0777730d298 Mon Sep 17 00:00:00 2001
From: Johan Hovold <jhovold@gmail.com>
Date: Tue, 22 Oct 2013 18:36:57 +0200
Subject: atmel_lcdfb: fix module autoload

Add missing module device table which is needed for module autoloading.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/atmel_lcdfb.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index 8521051cf946..cd961622f9c1 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -131,6 +131,7 @@ static const struct platform_device_id atmel_lcdfb_devtypes[] = {
 		/* terminator */
 	}
 };
+MODULE_DEVICE_TABLE(platform, atmel_lcdfb_devtypes);
 
 static struct atmel_lcdfb_config *
 atmel_lcdfb_get_config(struct platform_device *pdev)
-- 
cgit 


From 46ac29568e63c9da9c15804648d3ed8c25e2dc44 Mon Sep 17 00:00:00 2001
From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Mon, 2 Dec 2013 11:11:18 +0300
Subject: video: vt8500: fix error handling in probe()

We shouldn't kfree(fbi) because that was allocated with devm_kzalloc().
There were several error paths which returned directly instead of
releasing resources.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
 drivers/video/vt8500lcdfb.c | 25 +++++++++++--------------
 1 file changed, 11 insertions(+), 14 deletions(-)

diff --git a/drivers/video/vt8500lcdfb.c b/drivers/video/vt8500lcdfb.c
index b30e5a439d1f..a8f2b280f796 100644
--- a/drivers/video/vt8500lcdfb.c
+++ b/drivers/video/vt8500lcdfb.c
@@ -293,8 +293,7 @@ static int vt8500lcd_probe(struct platform_device *pdev)
 			+ sizeof(u32) * 16, GFP_KERNEL);
 	if (!fbi) {
 		dev_err(&pdev->dev, "Failed to initialize framebuffer device\n");
-		ret = -ENOMEM;
-		goto failed;
+		return -ENOMEM;
 	}
 
 	strcpy(fbi->fb.fix.id, "VT8500 LCD");
@@ -327,15 +326,13 @@ static int vt8500lcd_probe(struct platform_device *pdev)
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (res == NULL) {
 		dev_err(&pdev->dev, "no I/O memory resource defined\n");
-		ret = -ENODEV;
-		goto failed_fbi;
+		return -ENODEV;
 	}
 
 	res = request_mem_region(res->start, resource_size(res), "vt8500lcd");
 	if (res == NULL) {
 		dev_err(&pdev->dev, "failed to request I/O memory\n");
-		ret = -EBUSY;
-		goto failed_fbi;
+		return -EBUSY;
 	}
 
 	fbi->regbase = ioremap(res->start, resource_size(res));
@@ -346,17 +343,19 @@ static int vt8500lcd_probe(struct platform_device *pdev)
 	}
 
 	disp_timing = of_get_display_timings(pdev->dev.of_node);
-	if (!disp_timing)
-		return -EINVAL;
+	if (!disp_timing) {
+		ret = -EINVAL;
+		goto failed_free_io;
+	}
 
 	ret = of_get_fb_videomode(pdev->dev.of_node, &of_mode,
 							OF_USE_NATIVE_MODE);
 	if (ret)
-		return ret;
+		goto failed_free_io;
 
 	ret = of_property_read_u32(pdev->dev.of_node, "bits-per-pixel", &bpp);
 	if (ret)
-		return ret;
+		goto failed_free_io;
 
 	/* try allocating the framebuffer */
 	fb_mem_len = of_mode.xres * of_mode.yres * 2 * (bpp / 8);
@@ -364,7 +363,8 @@ static int vt8500lcd_probe(struct platform_device *pdev)
 				GFP_KERNEL);
 	if (!fb_mem_virt) {
 		pr_err("%s: Failed to allocate framebuffer\n", __func__);
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto failed_free_io;
 	}
 
 	fbi->fb.fix.smem_start	= fb_mem_phys;
@@ -447,9 +447,6 @@ failed_free_io:
 	iounmap(fbi->regbase);
 failed_free_res:
 	release_mem_region(res->start, resource_size(res));
-failed_fbi:
-	kfree(fbi);
-failed:
 	return ret;
 }
 
-- 
cgit 


From 0756f09c4946fe2d9ce2ebcb6f2e3c58830d22a3 Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 4 Dec 2013 13:59:45 +0100
Subject: ALSA: hda - Fix silent output on MacBook Air 2,1
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

MacBook Air 2,1 has a fairly different pin assignment from its brother
MBA 1,1, and yet another quirks are needed for pin 0x18 and 0x19,
similarly like what iMac 9,1 requires, in order to make the sound
working on it.

Reported-and-tested-by: Bruno Prémont <bonbons@linux-vserver.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
 sound/pci/hda/patch_realtek.c | 39 +++++++++++++++++++++++++++++++--------
 1 file changed, 31 insertions(+), 8 deletions(-)

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index e327e630cac4..c5ea483d7559 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -1780,6 +1780,7 @@ enum {
 	ALC889_FIXUP_DAC_ROUTE,
 	ALC889_FIXUP_MBP_VREF,
 	ALC889_FIXUP_IMAC91_VREF,
+	ALC889_FIXUP_MBA21_VREF,
 	ALC882_FIXUP_INV_DMIC,
 	ALC882_FIXUP_NO_PRIMARY_HP,
 	ALC887_FIXUP_ASUS_BASS,
@@ -1884,17 +1885,13 @@ static void alc889_fixup_mbp_vref(struct hda_codec *codec,
 	}
 }
 
-/* Set VREF on speaker pins on imac91 */
-static void alc889_fixup_imac91_vref(struct hda_codec *codec,
-				     const struct hda_fixup *fix, int action)
+static void alc889_fixup_mac_pins(struct hda_codec *codec,
+				  const hda_nid_t *nids, int num_nids)
 {
 	struct alc_spec *spec = codec->spec;
-	static hda_nid_t nids[2] = { 0x18, 0x1a };
 	int i;
 
-	if (action != HDA_FIXUP_ACT_INIT)
-		return;
-	for (i = 0; i < ARRAY_SIZE(nids); i++) {
+	for (i = 0; i < num_nids; i++) {
 		unsigned int val;
 		val = snd_hda_codec_get_pin_target(codec, nids[i]);
 		val |= AC_PINCTL_VREF_50;
@@ -1903,6 +1900,26 @@ static void alc889_fixup_imac91_vref(struct hda_codec *codec,
 	spec->gen.keep_vref_in_automute = 1;
 }
 
+/* Set VREF on speaker pins on imac91 */
+static void alc889_fixup_imac91_vref(struct hda_codec *codec,
+				     const struct hda_fixup *fix, int action)
+{
+	static hda_nid_t nids[2] = { 0x18, 0x1a };
+
+	if (action == HDA_FIXUP_ACT_INIT)
+		alc889_fixup_mac_pins(codec, nids, ARRAY_SIZE(nids));
+}
+
+/* Set VREF on speaker pins on mba21 */
+static void alc889_fixup_mba21_vref(struct hda_codec *codec,
+				    const struct hda_fixup *fix, int action)
+{
+	static hda_nid_t nids[2] = { 0x18, 0x19 };
+
+	if (action == HDA_FIXUP_ACT_INIT)
+		alc889_fixup_mac_pins(codec, nids, ARRAY_SIZE(nids));
+}
+
 /* Don't take HP output as primary
  * Strangely, the speaker output doesn't work on Vaio Z and some Vaio
  * all-in-one desktop PCs (for example VGC-LN51JGB) through DAC 0x05
@@ -2102,6 +2119,12 @@ static const struct hda_fixup alc882_fixups[] = {
 		.chained = true,
 		.chain_id = ALC882_FIXUP_GPIO1,
 	},
+	[ALC889_FIXUP_MBA21_VREF] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc889_fixup_mba21_vref,
+		.chained = true,
+		.chain_id = ALC889_FIXUP_MBP_VREF,
+	},
 	[ALC882_FIXUP_INV_DMIC] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc_fixup_inv_dmic_0x12,
@@ -2172,7 +2195,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x106b, 0x3000, "iMac", ALC889_FIXUP_MBP_VREF),
 	SND_PCI_QUIRK(0x106b, 0x3200, "iMac 7,1 Aluminum", ALC882_FIXUP_EAPD),
 	SND_PCI_QUIRK(0x106b, 0x3400, "MacBookAir 1,1", ALC889_FIXUP_MBP_VREF),
-	SND_PCI_QUIRK(0x106b, 0x3500, "MacBookAir 2,1", ALC889_FIXUP_MBP_VREF),
+	SND_PCI_QUIRK(0x106b, 0x3500, "MacBookAir 2,1", ALC889_FIXUP_MBA21_VREF),
 	SND_PCI_QUIRK(0x106b, 0x3600, "Macbook 3,1", ALC889_FIXUP_MBP_VREF),
 	SND_PCI_QUIRK(0x106b, 0x3800, "MacbookPro 4,1", ALC889_FIXUP_MBP_VREF),
 	SND_PCI_QUIRK(0x106b, 0x3e00, "iMac 24 Aluminum", ALC885_FIXUP_MACPRO_GPIO),
-- 
cgit 


From f22e5edd2244609aed3906207a62223e7707a34d Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Wed, 4 Dec 2013 12:09:45 -0500
Subject: NFSv4.1: Prevent a 3-way deadlock between layoutreturn, open and
 state recovery

Andy Adamson reports:

The state manager is recovering expired state and recovery OPENs are being
processed. If kswapd is pruning inodes at the same time, a deadlock can occur
when kswapd calls evict_inode on an NFSv4.1 inode with a layout, and the
resultant layoutreturn gets an error that the state mangager is to handle,
causing the layoutreturn to wait on the (NFS client) cl_rpcwaitq.

At the same time an open is waiting for the inode deletion to complete in
__wait_on_freeing_inode.

If the open is either the open called by the state manager, or an open from
the same open owner that is holding the NFSv4 sequence id which causes the
OPEN from the state manager to wait for the sequence id on the Seqid_waitqueue,
then the state is deadlocked with kswapd.

The fix is simply to have layoutreturn ignore all errors except NFS4ERR_DELAY.
We already know that layouts are dropped on all server reboots, and that
it has to be coded to deal with the "forgetful client model" that doesn't
send layoutreturns.

Reported-by: Andy Adamson <andros@netapp.com>
Link: http://lkml.kernel.org/r/1385402270-14284-1-git-send-email-andros@netapp.com
Signed-off-by: Trond Myklebust <Trond.Myklebust@primarydata.com>
---
 fs/nfs/nfs4proc.c | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index f01e2aa53210..e040359983ce 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -7599,7 +7599,14 @@ static void nfs4_layoutreturn_done(struct rpc_task *task, void *calldata)
 		return;
 
 	server = NFS_SERVER(lrp->args.inode);
-	if (nfs4_async_handle_error(task, server, NULL) == -EAGAIN) {
+	switch (task->tk_status) {
+	default:
+		task->tk_status = 0;
+	case 0:
+		break;
+	case -NFS4ERR_DELAY:
+		if (nfs4_async_handle_error(task, server, NULL) != -EAGAIN)
+			break;
 		rpc_restart_call_prepare(task);
 		return;
 	}
-- 
cgit 


From cd7b996aa6cafe520dd987b12694fd8af4278466 Mon Sep 17 00:00:00 2001
From: Trond Myklebust <Trond.Myklebust@netapp.com>
Date: Wed, 4 Dec 2013 12:29:49 -0500
Subject: MAINTAINERS: Update contact information for Trond Myklebust

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---
 MAINTAINERS | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index d2d2f457dcd0..cfe3926be254 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5878,10 +5878,10 @@ F:	drivers/nfc/
 F:	include/linux/platform_data/pn544.h
 
 NFS, SUNRPC, AND LOCKD CLIENTS
-M:	Trond Myklebust <Trond.Myklebust@netapp.com>
+M:	Trond Myklebust <trond.myklebust@primarydata.com>
 L:	linux-nfs@vger.kernel.org
 W:	http://client.linux-nfs.org
-T:	git git://git.linux-nfs.org/pub/linux/nfs-2.6.git
+T:	git git://git.linux-nfs.org/projects/trondmy/linux-nfs.git
 S:	Maintained
 F:	fs/lockd/
 F:	fs/nfs/
-- 
cgit 


From 3873d064b8538686bbbd4b858dc8a07db1f7f43a Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@gmx.de>
Date: Mon, 2 Dec 2013 19:59:31 +0100
Subject: nfs: fix do_div() warning by instead using sector_div()
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

When compiling a 32bit kernel with CONFIG_LBDAF=n the compiler complains like
shown below.  Fix this warning by instead using sector_div() which is provided
by the kernel.h header file.

fs/nfs/blocklayout/extents.c: In function ‘normalize’:
include/asm-generic/div64.h:43:28: warning: comparison of distinct pointer types lacks a cast [enabled by default]
fs/nfs/blocklayout/extents.c:47:13: note: in expansion of macro ‘do_div’
nfs/blocklayout/extents.c:47:2: warning: right shift count >= width of type [enabled by default]
fs/nfs/blocklayout/extents.c:47:2: warning: passing argument 1 of ‘__div64_32’ from incompatible pointer type [enabled by default]
include/asm-generic/div64.h:35:17: note: expected ‘uint64_t *’ but argument is of type ‘sector_t *’
 extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);

Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
---
 fs/nfs/blocklayout/extents.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfs/blocklayout/extents.c b/fs/nfs/blocklayout/extents.c
index 9c3e117c3ed1..4d0161442565 100644
--- a/fs/nfs/blocklayout/extents.c
+++ b/fs/nfs/blocklayout/extents.c
@@ -44,7 +44,7 @@
 static inline sector_t normalize(sector_t s, int base)
 {
 	sector_t tmp = s; /* Since do_div modifies its argument */
-	return s - do_div(tmp, base);
+	return s - sector_div(tmp, base);
 }
 
 static inline sector_t normalize_up(sector_t s, int base)
-- 
cgit 


From e0f6dec35f9286e78879fe1ac92803fd69fc4fdc Mon Sep 17 00:00:00 2001
From: "H. Peter Anvin" <hpa@linux.intel.com>
Date: Wed, 4 Dec 2013 14:31:28 -0800
Subject: x86, bitops: Correct the assembly constraints to testing bitops

In checkin:

0c44c2d0f459 x86: Use asm goto to implement better modify_and_test() functions

the various functions which do modify and test were unified and
optimized using "asm goto".  However, this change missed the detail
that the bitops require an "Ir" constraint rather than an "er"
constraint ("I" = integer constant from 0-31, "e" = signed 32-bit
integer constant).  This would cause code to miscompile if these
functions were used on constant bit positions 32-255 and the build to
fail if used on constant bit positions above 255.

Add the constraints as a parameter to the GEN_BINARY_RMWcc() macro to
avoid this problem.

Reported-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/529E8719.4070202@zytor.com
---
 arch/x86/include/asm/atomic.h      | 4 ++--
 arch/x86/include/asm/atomic64_64.h | 4 ++--
 arch/x86/include/asm/bitops.h      | 6 +++---
 arch/x86/include/asm/local.h       | 4 ++--
 arch/x86/include/asm/rmwcc.h       | 8 ++++----
 5 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/arch/x86/include/asm/atomic.h b/arch/x86/include/asm/atomic.h
index da31c8b8a92d..b17f4f48ecd7 100644
--- a/arch/x86/include/asm/atomic.h
+++ b/arch/x86/include/asm/atomic.h
@@ -77,7 +77,7 @@ static inline void atomic_sub(int i, atomic_t *v)
  */
 static inline int atomic_sub_and_test(int i, atomic_t *v)
 {
-	GEN_BINARY_RMWcc(LOCK_PREFIX "subl", v->counter, i, "%0", "e");
+	GEN_BINARY_RMWcc(LOCK_PREFIX "subl", v->counter, "er", i, "%0", "e");
 }
 
 /**
@@ -141,7 +141,7 @@ static inline int atomic_inc_and_test(atomic_t *v)
  */
 static inline int atomic_add_negative(int i, atomic_t *v)
 {
-	GEN_BINARY_RMWcc(LOCK_PREFIX "addl", v->counter, i, "%0", "s");
+	GEN_BINARY_RMWcc(LOCK_PREFIX "addl", v->counter, "er", i, "%0", "s");
 }
 
 /**
diff --git a/arch/x86/include/asm/atomic64_64.h b/arch/x86/include/asm/atomic64_64.h
index 3f065c985aee..46e9052bbd28 100644
--- a/arch/x86/include/asm/atomic64_64.h
+++ b/arch/x86/include/asm/atomic64_64.h
@@ -72,7 +72,7 @@ static inline void atomic64_sub(long i, atomic64_t *v)
  */
 static inline int atomic64_sub_and_test(long i, atomic64_t *v)
 {
-	GEN_BINARY_RMWcc(LOCK_PREFIX "subq", v->counter, i, "%0", "e");
+	GEN_BINARY_RMWcc(LOCK_PREFIX "subq", v->counter, "er", i, "%0", "e");
 }
 
 /**
@@ -138,7 +138,7 @@ static inline int atomic64_inc_and_test(atomic64_t *v)
  */
 static inline int atomic64_add_negative(long i, atomic64_t *v)
 {
-	GEN_BINARY_RMWcc(LOCK_PREFIX "addq", v->counter, i, "%0", "s");
+	GEN_BINARY_RMWcc(LOCK_PREFIX "addq", v->counter, "er", i, "%0", "s");
 }
 
 /**
diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h
index 6d76d0935989..9fc1af74dc83 100644
--- a/arch/x86/include/asm/bitops.h
+++ b/arch/x86/include/asm/bitops.h
@@ -205,7 +205,7 @@ static inline void change_bit(long nr, volatile unsigned long *addr)
  */
 static inline int test_and_set_bit(long nr, volatile unsigned long *addr)
 {
-	GEN_BINARY_RMWcc(LOCK_PREFIX "bts", *addr, nr, "%0", "c");
+	GEN_BINARY_RMWcc(LOCK_PREFIX "bts", *addr, "Ir", nr, "%0", "c");
 }
 
 /**
@@ -251,7 +251,7 @@ static inline int __test_and_set_bit(long nr, volatile unsigned long *addr)
  */
 static inline int test_and_clear_bit(long nr, volatile unsigned long *addr)
 {
-	GEN_BINARY_RMWcc(LOCK_PREFIX "btr", *addr, nr, "%0", "c");
+	GEN_BINARY_RMWcc(LOCK_PREFIX "btr", *addr, "Ir", nr, "%0", "c");
 }
 
 /**
@@ -304,7 +304,7 @@ static inline int __test_and_change_bit(long nr, volatile unsigned long *addr)
  */
 static inline int test_and_change_bit(long nr, volatile unsigned long *addr)
 {
-	GEN_BINARY_RMWcc(LOCK_PREFIX "btc", *addr, nr, "%0", "c");
+	GEN_BINARY_RMWcc(LOCK_PREFIX "btc", *addr, "Ir", nr, "%0", "c");
 }
 
 static __always_inline int constant_test_bit(long nr, const volatile unsigned long *addr)
diff --git a/arch/x86/include/asm/local.h b/arch/x86/include/asm/local.h
index 5b23e605e707..4ad6560847b1 100644
--- a/arch/x86/include/asm/local.h
+++ b/arch/x86/include/asm/local.h
@@ -52,7 +52,7 @@ static inline void local_sub(long i, local_t *l)
  */
 static inline int local_sub_and_test(long i, local_t *l)
 {
-	GEN_BINARY_RMWcc(_ASM_SUB, l->a.counter, i, "%0", "e");
+	GEN_BINARY_RMWcc(_ASM_SUB, l->a.counter, "er", i, "%0", "e");
 }
 
 /**
@@ -92,7 +92,7 @@ static inline int local_inc_and_test(local_t *l)
  */
 static inline int local_add_negative(long i, local_t *l)
 {
-	GEN_BINARY_RMWcc(_ASM_ADD, l->a.counter, i, "%0", "s");
+	GEN_BINARY_RMWcc(_ASM_ADD, l->a.counter, "er", i, "%0", "s");
 }
 
 /**
diff --git a/arch/x86/include/asm/rmwcc.h b/arch/x86/include/asm/rmwcc.h
index 1ff990f1de8e..8f7866a5b9a4 100644
--- a/arch/x86/include/asm/rmwcc.h
+++ b/arch/x86/include/asm/rmwcc.h
@@ -16,8 +16,8 @@ cc_label:								\
 #define GEN_UNARY_RMWcc(op, var, arg0, cc) 				\
 	__GEN_RMWcc(op " " arg0, var, cc)
 
-#define GEN_BINARY_RMWcc(op, var, val, arg0, cc)			\
-	__GEN_RMWcc(op " %1, " arg0, var, cc, "er" (val))
+#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc)			\
+	__GEN_RMWcc(op " %1, " arg0, var, cc, vcon (val))
 
 #else /* !CC_HAVE_ASM_GOTO */
 
@@ -33,8 +33,8 @@ do {									\
 #define GEN_UNARY_RMWcc(op, var, arg0, cc)				\
 	__GEN_RMWcc(op " " arg0, var, cc)
 
-#define GEN_BINARY_RMWcc(op, var, val, arg0, cc)			\
-	__GEN_RMWcc(op " %2, " arg0, var, cc, "er" (val))
+#define GEN_BINARY_RMWcc(op, var, vcon, val, arg0, cc)			\
+	__GEN_RMWcc(op " %2, " arg0, var, cc, vcon (val))
 
 #endif /* CC_HAVE_ASM_GOTO */
 
-- 
cgit 


From 8a37ea50e7acf8db6821ba094ca41384e7d8c70c Mon Sep 17 00:00:00 2001
From: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Date: Thu, 5 Dec 2013 02:01:55 +0100
Subject: PNP: fix restoring devices after hibernation

On returning from hibernation 'restore' callback is called,
not 'resume'.  Fix it.

Fixes: eaf140b60ec9 (PNP: convert PNP driver bus legacy pm_ops to dev_pm_ops)
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: 3.12+ <stable@vger.kernel.org> # 3.12+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/pnp/driver.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/pnp/driver.c b/drivers/pnp/driver.c
index 6936e0acedcd..f748cc8cbb03 100644
--- a/drivers/pnp/driver.c
+++ b/drivers/pnp/driver.c
@@ -197,6 +197,11 @@ static int pnp_bus_freeze(struct device *dev)
 	return __pnp_bus_suspend(dev, PMSG_FREEZE);
 }
 
+static int pnp_bus_poweroff(struct device *dev)
+{
+	return __pnp_bus_suspend(dev, PMSG_HIBERNATE);
+}
+
 static int pnp_bus_resume(struct device *dev)
 {
 	struct pnp_dev *pnp_dev = to_pnp_dev(dev);
@@ -234,9 +239,14 @@ static int pnp_bus_resume(struct device *dev)
 }
 
 static const struct dev_pm_ops pnp_bus_dev_pm_ops = {
+	/* Suspend callbacks */
 	.suspend = pnp_bus_suspend,
-	.freeze = pnp_bus_freeze,
 	.resume = pnp_bus_resume,
+	/* Hibernate callbacks */
+	.freeze = pnp_bus_freeze,
+	.thaw = pnp_bus_resume,
+	.poweroff = pnp_bus_poweroff,
+	.restore = pnp_bus_resume,
 };
 
 struct bus_type pnp_bus_type = {
-- 
cgit 


From 95677a9a3847de4f37e0f463aeb94aa8d5cccc50 Mon Sep 17 00:00:00 2001
From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Date: Wed, 4 Dec 2013 11:12:59 -0800
Subject: PowerCap: Fix mode for energy counter

As per the documentation of powercap sysfs, energy_uj field is read only,
if it can't be reset. Currently it always allows write but will fail,
if there is no reset callback.
Changing mode field, to read only if there is no reset callback.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Reported-by: Dirk Brandewie <dirk.j.brandewie@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 drivers/powercap/powercap_sys.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/powercap/powercap_sys.c b/drivers/powercap/powercap_sys.c
index 8d0fe431dbdd..84419af16f77 100644
--- a/drivers/powercap/powercap_sys.c
+++ b/drivers/powercap/powercap_sys.c
@@ -377,9 +377,14 @@ static void create_power_zone_common_attributes(
 	if (power_zone->ops->get_max_energy_range_uj)
 		power_zone->zone_dev_attrs[count++] =
 					&dev_attr_max_energy_range_uj.attr;
-	if (power_zone->ops->get_energy_uj)
+	if (power_zone->ops->get_energy_uj) {
+		if (power_zone->ops->reset_energy_uj)
+			dev_attr_energy_uj.attr.mode = S_IWUSR | S_IRUGO;
+		else
+			dev_attr_energy_uj.attr.mode = S_IRUGO;
 		power_zone->zone_dev_attrs[count++] =
 					&dev_attr_energy_uj.attr;
+	}
 	if (power_zone->ops->get_power_uw)
 		power_zone->zone_dev_attrs[count++] =
 					&dev_attr_power_uw.attr;
-- 
cgit 


From 2885432aaf15c1b7e65c787bfe7c5fec428296f0 Mon Sep 17 00:00:00 2001
From: Fenghua Yu <fenghua.yu@intel.com>
Date: Wed, 4 Dec 2013 16:07:49 -0800
Subject: x86/apic, doc: Justification for disabling IO APIC before Local APIC

Since erratum AVR31 in "Intel Atom Processor C2000 Product Family
Specification Update" is now published, I added a justification
comment for disabling IO APIC before Local APIC, as changed in commit:

522e66464467 x86/apic: Disable I/O APIC before shutdown of the local APIC

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/1386202069-51515-1-git-send-email-fenghua.yu@intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
 arch/x86/kernel/reboot.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c
index da3c599584a3..c752cb43e52f 100644
--- a/arch/x86/kernel/reboot.c
+++ b/arch/x86/kernel/reboot.c
@@ -558,6 +558,17 @@ void native_machine_shutdown(void)
 {
 	/* Stop the cpus and apics */
 #ifdef CONFIG_X86_IO_APIC
+	/*
+	 * Disabling IO APIC before local APIC is a workaround for
+	 * erratum AVR31 in "Intel Atom Processor C2000 Product Family
+	 * Specification Update". In this situation, interrupts that target
+	 * a Logical Processor whose Local APIC is either in the process of
+	 * being hardware disabled or software disabled are neither delivered
+	 * nor discarded. When this erratum occurs, the processor may hang.
+	 *
+	 * Even without the erratum, it still makes sense to quiet IO APIC
+	 * before disabling Local APIC.
+	 */
 	disable_IO_APIC();
 #endif
 
-- 
cgit 


From 0d11e6aca396e679c07b2dd6af5dc8b7f041fbbd Mon Sep 17 00:00:00 2001
From: Ming Lei <tom.leiming@gmail.com>
Date: Thu, 5 Dec 2013 10:50:39 -0700
Subject: blk-mq: fix use-after-free of request

If accounting is on, we will do the IO completion accounting after
we have freed the request. Fix that by moving it sooner instead.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 block/blk-mq.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index 70fd6f996600..c79126e11030 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -312,12 +312,12 @@ void blk_mq_complete_request(struct request *rq, int error)
 
 	blk_account_io_completion(rq, bytes);
 
+	blk_account_io_done(rq);
+
 	if (rq->end_io)
 		rq->end_io(rq, error);
 	else
 		blk_mq_free_request(rq);
-
-	blk_account_io_done(rq);
 }
 
 void __blk_mq_end_io(struct request *rq, int error)
-- 
cgit 


From 3ccb01239201af06a07482ec686b14cd148102a5 Mon Sep 17 00:00:00 2001
From: Steven Rostedt <rostedt@goodmis.org>
Date: Tue, 3 Dec 2013 12:41:20 -0500
Subject: tracing: Only run synchronize_sched() at instance deletion time

It has been reported that boot up with FTRACE_SELFTEST enabled can take a
very long time. There can be stalls of over a minute.

This was tracked down to the synchronize_sched() called when a system call
event is disabled. As the self tests enable and disable thousands of events,
this makes the synchronize_sched() get called thousands of times.

The synchornize_sched() was added with d562aff93bfb53 "tracing: Add support
for SOFT_DISABLE to syscall events" which caused this regression (added
in 3.13-rc1).

The synchronize_sched() is to protect against the events being accessed
when a tracer instance is being deleted. When an instance is being deleted
all the events associated to it are unregistered. The synchronize_sched()
makes sure that no more users are running when it finishes.

Instead of calling synchronize_sched() for all syscall events, we only
need to call it once, after the events are unregistered and before the
instance is deleted. The event_mutex is held during this action to
prevent new users from enabling events.

Link: http://lkml.kernel.org/r/20131203124120.427b9661@gandalf.local.home

Reported-by: Petr Mladek <pmladek@suse.cz>
Acked-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Acked-by: Petr Mladek <pmladek@suse.cz>
Tested-by: Petr Mladek <pmladek@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/trace/trace_events.c   |  3 +++
 kernel/trace/trace_syscalls.c | 10 ----------
 2 files changed, 3 insertions(+), 10 deletions(-)

diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index f919a2e21bf3..a11800ae96de 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -2314,6 +2314,9 @@ int event_trace_del_tracer(struct trace_array *tr)
 	/* Disable any running events */
 	__ftrace_set_clr_event_nolock(tr, NULL, NULL, NULL, 0);
 
+	/* Access to events are within rcu_read_lock_sched() */
+	synchronize_sched();
+
 	down_write(&trace_event_sem);
 	__trace_remove_event_dirs(tr);
 	debugfs_remove_recursive(tr->event_dir);
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index e4b6d11bdf78..ea90eb5f6f17 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -431,11 +431,6 @@ static void unreg_event_syscall_enter(struct ftrace_event_file *file,
 	if (!tr->sys_refcount_enter)
 		unregister_trace_sys_enter(ftrace_syscall_enter, tr);
 	mutex_unlock(&syscall_trace_lock);
-	/*
-	 * Callers expect the event to be completely disabled on
-	 * return, so wait for current handlers to finish.
-	 */
-	synchronize_sched();
 }
 
 static int reg_event_syscall_exit(struct ftrace_event_file *file,
@@ -474,11 +469,6 @@ static void unreg_event_syscall_exit(struct ftrace_event_file *file,
 	if (!tr->sys_refcount_exit)
 		unregister_trace_sys_exit(ftrace_syscall_exit, tr);
 	mutex_unlock(&syscall_trace_lock);
-	/*
-	 * Callers expect the event to be completely disabled on
-	 * return, so wait for current handlers to finish.
-	 */
-	synchronize_sched();
 }
 
 static int __init init_syscall_trace(struct ftrace_event_call *call)
-- 
cgit 


From 2d8eedad9233d4771fb3134f50e5c5a09e28352c Mon Sep 17 00:00:00 2001
From: Tony Lu <zlu@tilera.com>
Date: Thu, 5 Dec 2013 15:36:54 -0500
Subject: ftrace: default to tilegx if ARCH=tile is specified

This matches the existing behavior in arch/tile/Makefile for defconfig.

Reported-by: fengguang.wu@intel.com
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Tony Lu <zlu@tilera.com>
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
---
 scripts/recordmcount.pl | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index d0da66396f62..91280b82da08 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -364,7 +364,8 @@ if ($arch eq "x86_64") {
 } elsif ($arch eq "blackfin") {
     $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s__mcount\$";
     $mcount_adjust = -4;
-} elsif ($arch eq "tilegx") {
+} elsif ($arch eq "tilegx" || $arch eq "tile") {
+    # Default to the newer TILE-Gx architecture if only "tile" is given.
     $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s__mcount\$";
     $type = ".quad";
     $alignment = 8;
-- 
cgit 


From d1b9432712a25eeb06114fb4b587133525a47de5 Mon Sep 17 00:00:00 2001
From: Gu Zheng <guz.fnst@cn.fujitsu.com>
Date: Wed, 4 Dec 2013 18:19:06 +0800
Subject: aio: clean up aio ring in the fail path

Clean up the aio ring file in the fail path of aio_setup_ring
and ioctx_alloc. And maybe it can fix the GPF issue reported by
Dave Jones:
https://lkml.org/lkml/2013/11/25/898

Signed-off-by: Gu Zheng <guz.fnst@cn.fujitsu.com>
Signed-off-by: Benjamin LaHaise <bcrl@kvack.org>
---
 fs/aio.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/fs/aio.c b/fs/aio.c
index ad460d78d6c5..a2f92aa23ee3 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -316,8 +316,10 @@ static int aio_setup_ring(struct kioctx *ctx)
 	if (nr_pages > AIO_RING_PAGES) {
 		ctx->ring_pages = kcalloc(nr_pages, sizeof(struct page *),
 					  GFP_KERNEL);
-		if (!ctx->ring_pages)
+		if (!ctx->ring_pages) {
+			put_aio_ring_file(ctx);
 			return -ENOMEM;
+		}
 	}
 
 	ctx->mmap_size = nr_pages * PAGE_SIZE;
@@ -594,7 +596,7 @@ static struct kioctx *ioctx_alloc(unsigned nr_events)
 	    aio_nr + nr_events < aio_nr) {
 		spin_unlock(&aio_nr_lock);
 		err = -EAGAIN;
-		goto err;
+		goto err_ctx;
 	}
 	aio_nr += ctx->max_reqs;
 	spin_unlock(&aio_nr_lock);
@@ -611,6 +613,8 @@ static struct kioctx *ioctx_alloc(unsigned nr_events)
 
 err_cleanup:
 	aio_nr_sub(ctx->max_reqs);
+err_ctx:
+	aio_free_ring(ctx);
 err:
 	free_percpu(ctx->cpu);
 	free_percpu(ctx->reqs.pcpu_count);
-- 
cgit 


From 374b105797c3d4f29c685f3be535c35f5689b30e Mon Sep 17 00:00:00 2001
From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Fri, 6 Dec 2013 09:34:04 -0800
Subject: Linux 3.13-rc3

---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 2c88e44a1dd4..890392f1c7c0 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 3
 PATCHLEVEL = 13
 SUBLEVEL = 0
-EXTRAVERSION = -rc2
+EXTRAVERSION = -rc3
 NAME = One Giant Leap for Frogkind
 
 # *DOCUMENTATION*
-- 
cgit